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1 | /******************************************************************* | |
2 | * This file is part of the Emulex Linux Device Driver for * | |
3 | * Fibre Channel Host Bus Adapters. * | |
4 | * Copyright (C) 2004-2016 Emulex. All rights reserved. * | |
5 | * EMULEX and SLI are trademarks of Emulex. * | |
6 | * www.emulex.com * | |
7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * | |
8 | * * | |
9 | * This program is free software; you can redistribute it and/or * | |
10 | * modify it under the terms of version 2 of the GNU General * | |
11 | * Public License as published by the Free Software Foundation. * | |
12 | * This program is distributed in the hope that it will be useful. * | |
13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
18 | * more details, a copy of which can be found in the file COPYING * | |
19 | * included with this package. * | |
20 | *******************************************************************/ | |
21 | ||
22 | #include <linux/blkdev.h> | |
23 | #include <linux/delay.h> | |
24 | #include <linux/dma-mapping.h> | |
25 | #include <linux/idr.h> | |
26 | #include <linux/interrupt.h> | |
27 | #include <linux/module.h> | |
28 | #include <linux/kthread.h> | |
29 | #include <linux/pci.h> | |
30 | #include <linux/spinlock.h> | |
31 | #include <linux/ctype.h> | |
32 | #include <linux/aer.h> | |
33 | #include <linux/slab.h> | |
34 | #include <linux/firmware.h> | |
35 | #include <linux/miscdevice.h> | |
36 | #include <linux/percpu.h> | |
37 | ||
38 | #include <scsi/scsi.h> | |
39 | #include <scsi/scsi_device.h> | |
40 | #include <scsi/scsi_host.h> | |
41 | #include <scsi/scsi_transport_fc.h> | |
42 | ||
43 | #include "lpfc_hw4.h" | |
44 | #include "lpfc_hw.h" | |
45 | #include "lpfc_sli.h" | |
46 | #include "lpfc_sli4.h" | |
47 | #include "lpfc_nl.h" | |
48 | #include "lpfc_disc.h" | |
49 | #include "lpfc_scsi.h" | |
50 | #include "lpfc.h" | |
51 | #include "lpfc_logmsg.h" | |
52 | #include "lpfc_crtn.h" | |
53 | #include "lpfc_vport.h" | |
54 | #include "lpfc_version.h" | |
55 | #include "lpfc_ids.h" | |
56 | ||
57 | char *_dump_buf_data; | |
58 | unsigned long _dump_buf_data_order; | |
59 | char *_dump_buf_dif; | |
60 | unsigned long _dump_buf_dif_order; | |
61 | spinlock_t _dump_buf_lock; | |
62 | ||
63 | /* Used when mapping IRQ vectors in a driver centric manner */ | |
64 | uint16_t *lpfc_used_cpu; | |
65 | uint32_t lpfc_present_cpu; | |
66 | ||
67 | static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); | |
68 | static int lpfc_post_rcv_buf(struct lpfc_hba *); | |
69 | static int lpfc_sli4_queue_verify(struct lpfc_hba *); | |
70 | static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); | |
71 | static int lpfc_setup_endian_order(struct lpfc_hba *); | |
72 | static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); | |
73 | static void lpfc_free_els_sgl_list(struct lpfc_hba *); | |
74 | static void lpfc_init_sgl_list(struct lpfc_hba *); | |
75 | static int lpfc_init_active_sgl_array(struct lpfc_hba *); | |
76 | static void lpfc_free_active_sgl(struct lpfc_hba *); | |
77 | static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); | |
78 | static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); | |
79 | static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); | |
80 | static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); | |
81 | static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); | |
82 | static void lpfc_sli4_disable_intr(struct lpfc_hba *); | |
83 | static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t); | |
84 | static void lpfc_sli4_oas_verify(struct lpfc_hba *phba); | |
85 | ||
86 | static struct scsi_transport_template *lpfc_transport_template = NULL; | |
87 | static struct scsi_transport_template *lpfc_vport_transport_template = NULL; | |
88 | static DEFINE_IDR(lpfc_hba_index); | |
89 | ||
90 | /** | |
91 | * lpfc_config_port_prep - Perform lpfc initialization prior to config port | |
92 | * @phba: pointer to lpfc hba data structure. | |
93 | * | |
94 | * This routine will do LPFC initialization prior to issuing the CONFIG_PORT | |
95 | * mailbox command. It retrieves the revision information from the HBA and | |
96 | * collects the Vital Product Data (VPD) about the HBA for preparing the | |
97 | * configuration of the HBA. | |
98 | * | |
99 | * Return codes: | |
100 | * 0 - success. | |
101 | * -ERESTART - requests the SLI layer to reset the HBA and try again. | |
102 | * Any other value - indicates an error. | |
103 | **/ | |
104 | int | |
105 | lpfc_config_port_prep(struct lpfc_hba *phba) | |
106 | { | |
107 | lpfc_vpd_t *vp = &phba->vpd; | |
108 | int i = 0, rc; | |
109 | LPFC_MBOXQ_t *pmb; | |
110 | MAILBOX_t *mb; | |
111 | char *lpfc_vpd_data = NULL; | |
112 | uint16_t offset = 0; | |
113 | static char licensed[56] = | |
114 | "key unlock for use with gnu public licensed code only\0"; | |
115 | static int init_key = 1; | |
116 | ||
117 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
118 | if (!pmb) { | |
119 | phba->link_state = LPFC_HBA_ERROR; | |
120 | return -ENOMEM; | |
121 | } | |
122 | ||
123 | mb = &pmb->u.mb; | |
124 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
125 | ||
126 | if (lpfc_is_LC_HBA(phba->pcidev->device)) { | |
127 | if (init_key) { | |
128 | uint32_t *ptext = (uint32_t *) licensed; | |
129 | ||
130 | for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) | |
131 | *ptext = cpu_to_be32(*ptext); | |
132 | init_key = 0; | |
133 | } | |
134 | ||
135 | lpfc_read_nv(phba, pmb); | |
136 | memset((char*)mb->un.varRDnvp.rsvd3, 0, | |
137 | sizeof (mb->un.varRDnvp.rsvd3)); | |
138 | memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, | |
139 | sizeof (licensed)); | |
140 | ||
141 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
142 | ||
143 | if (rc != MBX_SUCCESS) { | |
144 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
145 | "0324 Config Port initialization " | |
146 | "error, mbxCmd x%x READ_NVPARM, " | |
147 | "mbxStatus x%x\n", | |
148 | mb->mbxCommand, mb->mbxStatus); | |
149 | mempool_free(pmb, phba->mbox_mem_pool); | |
150 | return -ERESTART; | |
151 | } | |
152 | memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, | |
153 | sizeof(phba->wwnn)); | |
154 | memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, | |
155 | sizeof(phba->wwpn)); | |
156 | } | |
157 | ||
158 | phba->sli3_options = 0x0; | |
159 | ||
160 | /* Setup and issue mailbox READ REV command */ | |
161 | lpfc_read_rev(phba, pmb); | |
162 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
163 | if (rc != MBX_SUCCESS) { | |
164 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
165 | "0439 Adapter failed to init, mbxCmd x%x " | |
166 | "READ_REV, mbxStatus x%x\n", | |
167 | mb->mbxCommand, mb->mbxStatus); | |
168 | mempool_free( pmb, phba->mbox_mem_pool); | |
169 | return -ERESTART; | |
170 | } | |
171 | ||
172 | ||
173 | /* | |
174 | * The value of rr must be 1 since the driver set the cv field to 1. | |
175 | * This setting requires the FW to set all revision fields. | |
176 | */ | |
177 | if (mb->un.varRdRev.rr == 0) { | |
178 | vp->rev.rBit = 0; | |
179 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
180 | "0440 Adapter failed to init, READ_REV has " | |
181 | "missing revision information.\n"); | |
182 | mempool_free(pmb, phba->mbox_mem_pool); | |
183 | return -ERESTART; | |
184 | } | |
185 | ||
186 | if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { | |
187 | mempool_free(pmb, phba->mbox_mem_pool); | |
188 | return -EINVAL; | |
189 | } | |
190 | ||
191 | /* Save information as VPD data */ | |
192 | vp->rev.rBit = 1; | |
193 | memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); | |
194 | vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; | |
195 | memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); | |
196 | vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; | |
197 | memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); | |
198 | vp->rev.biuRev = mb->un.varRdRev.biuRev; | |
199 | vp->rev.smRev = mb->un.varRdRev.smRev; | |
200 | vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; | |
201 | vp->rev.endecRev = mb->un.varRdRev.endecRev; | |
202 | vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; | |
203 | vp->rev.fcphLow = mb->un.varRdRev.fcphLow; | |
204 | vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; | |
205 | vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; | |
206 | vp->rev.postKernRev = mb->un.varRdRev.postKernRev; | |
207 | vp->rev.opFwRev = mb->un.varRdRev.opFwRev; | |
208 | ||
209 | /* If the sli feature level is less then 9, we must | |
210 | * tear down all RPIs and VPIs on link down if NPIV | |
211 | * is enabled. | |
212 | */ | |
213 | if (vp->rev.feaLevelHigh < 9) | |
214 | phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; | |
215 | ||
216 | if (lpfc_is_LC_HBA(phba->pcidev->device)) | |
217 | memcpy(phba->RandomData, (char *)&mb->un.varWords[24], | |
218 | sizeof (phba->RandomData)); | |
219 | ||
220 | /* Get adapter VPD information */ | |
221 | lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); | |
222 | if (!lpfc_vpd_data) | |
223 | goto out_free_mbox; | |
224 | do { | |
225 | lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); | |
226 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
227 | ||
228 | if (rc != MBX_SUCCESS) { | |
229 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
230 | "0441 VPD not present on adapter, " | |
231 | "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", | |
232 | mb->mbxCommand, mb->mbxStatus); | |
233 | mb->un.varDmp.word_cnt = 0; | |
234 | } | |
235 | /* dump mem may return a zero when finished or we got a | |
236 | * mailbox error, either way we are done. | |
237 | */ | |
238 | if (mb->un.varDmp.word_cnt == 0) | |
239 | break; | |
240 | if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) | |
241 | mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; | |
242 | lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, | |
243 | lpfc_vpd_data + offset, | |
244 | mb->un.varDmp.word_cnt); | |
245 | offset += mb->un.varDmp.word_cnt; | |
246 | } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); | |
247 | lpfc_parse_vpd(phba, lpfc_vpd_data, offset); | |
248 | ||
249 | kfree(lpfc_vpd_data); | |
250 | out_free_mbox: | |
251 | mempool_free(pmb, phba->mbox_mem_pool); | |
252 | return 0; | |
253 | } | |
254 | ||
255 | /** | |
256 | * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd | |
257 | * @phba: pointer to lpfc hba data structure. | |
258 | * @pmboxq: pointer to the driver internal queue element for mailbox command. | |
259 | * | |
260 | * This is the completion handler for driver's configuring asynchronous event | |
261 | * mailbox command to the device. If the mailbox command returns successfully, | |
262 | * it will set internal async event support flag to 1; otherwise, it will | |
263 | * set internal async event support flag to 0. | |
264 | **/ | |
265 | static void | |
266 | lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) | |
267 | { | |
268 | if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) | |
269 | phba->temp_sensor_support = 1; | |
270 | else | |
271 | phba->temp_sensor_support = 0; | |
272 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
273 | return; | |
274 | } | |
275 | ||
276 | /** | |
277 | * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler | |
278 | * @phba: pointer to lpfc hba data structure. | |
279 | * @pmboxq: pointer to the driver internal queue element for mailbox command. | |
280 | * | |
281 | * This is the completion handler for dump mailbox command for getting | |
282 | * wake up parameters. When this command complete, the response contain | |
283 | * Option rom version of the HBA. This function translate the version number | |
284 | * into a human readable string and store it in OptionROMVersion. | |
285 | **/ | |
286 | static void | |
287 | lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) | |
288 | { | |
289 | struct prog_id *prg; | |
290 | uint32_t prog_id_word; | |
291 | char dist = ' '; | |
292 | /* character array used for decoding dist type. */ | |
293 | char dist_char[] = "nabx"; | |
294 | ||
295 | if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { | |
296 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
297 | return; | |
298 | } | |
299 | ||
300 | prg = (struct prog_id *) &prog_id_word; | |
301 | ||
302 | /* word 7 contain option rom version */ | |
303 | prog_id_word = pmboxq->u.mb.un.varWords[7]; | |
304 | ||
305 | /* Decode the Option rom version word to a readable string */ | |
306 | if (prg->dist < 4) | |
307 | dist = dist_char[prg->dist]; | |
308 | ||
309 | if ((prg->dist == 3) && (prg->num == 0)) | |
310 | snprintf(phba->OptionROMVersion, 32, "%d.%d%d", | |
311 | prg->ver, prg->rev, prg->lev); | |
312 | else | |
313 | snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d", | |
314 | prg->ver, prg->rev, prg->lev, | |
315 | dist, prg->num); | |
316 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
317 | return; | |
318 | } | |
319 | ||
320 | /** | |
321 | * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, | |
322 | * cfg_soft_wwnn, cfg_soft_wwpn | |
323 | * @vport: pointer to lpfc vport data structure. | |
324 | * | |
325 | * | |
326 | * Return codes | |
327 | * None. | |
328 | **/ | |
329 | void | |
330 | lpfc_update_vport_wwn(struct lpfc_vport *vport) | |
331 | { | |
332 | /* If the soft name exists then update it using the service params */ | |
333 | if (vport->phba->cfg_soft_wwnn) | |
334 | u64_to_wwn(vport->phba->cfg_soft_wwnn, | |
335 | vport->fc_sparam.nodeName.u.wwn); | |
336 | if (vport->phba->cfg_soft_wwpn) | |
337 | u64_to_wwn(vport->phba->cfg_soft_wwpn, | |
338 | vport->fc_sparam.portName.u.wwn); | |
339 | ||
340 | /* | |
341 | * If the name is empty or there exists a soft name | |
342 | * then copy the service params name, otherwise use the fc name | |
343 | */ | |
344 | if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) | |
345 | memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, | |
346 | sizeof(struct lpfc_name)); | |
347 | else | |
348 | memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, | |
349 | sizeof(struct lpfc_name)); | |
350 | ||
351 | if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn) | |
352 | memcpy(&vport->fc_portname, &vport->fc_sparam.portName, | |
353 | sizeof(struct lpfc_name)); | |
354 | else | |
355 | memcpy(&vport->fc_sparam.portName, &vport->fc_portname, | |
356 | sizeof(struct lpfc_name)); | |
357 | } | |
358 | ||
359 | /** | |
360 | * lpfc_config_port_post - Perform lpfc initialization after config port | |
361 | * @phba: pointer to lpfc hba data structure. | |
362 | * | |
363 | * This routine will do LPFC initialization after the CONFIG_PORT mailbox | |
364 | * command call. It performs all internal resource and state setups on the | |
365 | * port: post IOCB buffers, enable appropriate host interrupt attentions, | |
366 | * ELS ring timers, etc. | |
367 | * | |
368 | * Return codes | |
369 | * 0 - success. | |
370 | * Any other value - error. | |
371 | **/ | |
372 | int | |
373 | lpfc_config_port_post(struct lpfc_hba *phba) | |
374 | { | |
375 | struct lpfc_vport *vport = phba->pport; | |
376 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
377 | LPFC_MBOXQ_t *pmb; | |
378 | MAILBOX_t *mb; | |
379 | struct lpfc_dmabuf *mp; | |
380 | struct lpfc_sli *psli = &phba->sli; | |
381 | uint32_t status, timeout; | |
382 | int i, j; | |
383 | int rc; | |
384 | ||
385 | spin_lock_irq(&phba->hbalock); | |
386 | /* | |
387 | * If the Config port completed correctly the HBA is not | |
388 | * over heated any more. | |
389 | */ | |
390 | if (phba->over_temp_state == HBA_OVER_TEMP) | |
391 | phba->over_temp_state = HBA_NORMAL_TEMP; | |
392 | spin_unlock_irq(&phba->hbalock); | |
393 | ||
394 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
395 | if (!pmb) { | |
396 | phba->link_state = LPFC_HBA_ERROR; | |
397 | return -ENOMEM; | |
398 | } | |
399 | mb = &pmb->u.mb; | |
400 | ||
401 | /* Get login parameters for NID. */ | |
402 | rc = lpfc_read_sparam(phba, pmb, 0); | |
403 | if (rc) { | |
404 | mempool_free(pmb, phba->mbox_mem_pool); | |
405 | return -ENOMEM; | |
406 | } | |
407 | ||
408 | pmb->vport = vport; | |
409 | if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { | |
410 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
411 | "0448 Adapter failed init, mbxCmd x%x " | |
412 | "READ_SPARM mbxStatus x%x\n", | |
413 | mb->mbxCommand, mb->mbxStatus); | |
414 | phba->link_state = LPFC_HBA_ERROR; | |
415 | mp = (struct lpfc_dmabuf *) pmb->context1; | |
416 | mempool_free(pmb, phba->mbox_mem_pool); | |
417 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
418 | kfree(mp); | |
419 | return -EIO; | |
420 | } | |
421 | ||
422 | mp = (struct lpfc_dmabuf *) pmb->context1; | |
423 | ||
424 | memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); | |
425 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
426 | kfree(mp); | |
427 | pmb->context1 = NULL; | |
428 | lpfc_update_vport_wwn(vport); | |
429 | ||
430 | /* Update the fc_host data structures with new wwn. */ | |
431 | fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); | |
432 | fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); | |
433 | fc_host_max_npiv_vports(shost) = phba->max_vpi; | |
434 | ||
435 | /* If no serial number in VPD data, use low 6 bytes of WWNN */ | |
436 | /* This should be consolidated into parse_vpd ? - mr */ | |
437 | if (phba->SerialNumber[0] == 0) { | |
438 | uint8_t *outptr; | |
439 | ||
440 | outptr = &vport->fc_nodename.u.s.IEEE[0]; | |
441 | for (i = 0; i < 12; i++) { | |
442 | status = *outptr++; | |
443 | j = ((status & 0xf0) >> 4); | |
444 | if (j <= 9) | |
445 | phba->SerialNumber[i] = | |
446 | (char)((uint8_t) 0x30 + (uint8_t) j); | |
447 | else | |
448 | phba->SerialNumber[i] = | |
449 | (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); | |
450 | i++; | |
451 | j = (status & 0xf); | |
452 | if (j <= 9) | |
453 | phba->SerialNumber[i] = | |
454 | (char)((uint8_t) 0x30 + (uint8_t) j); | |
455 | else | |
456 | phba->SerialNumber[i] = | |
457 | (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); | |
458 | } | |
459 | } | |
460 | ||
461 | lpfc_read_config(phba, pmb); | |
462 | pmb->vport = vport; | |
463 | if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { | |
464 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
465 | "0453 Adapter failed to init, mbxCmd x%x " | |
466 | "READ_CONFIG, mbxStatus x%x\n", | |
467 | mb->mbxCommand, mb->mbxStatus); | |
468 | phba->link_state = LPFC_HBA_ERROR; | |
469 | mempool_free( pmb, phba->mbox_mem_pool); | |
470 | return -EIO; | |
471 | } | |
472 | ||
473 | /* Check if the port is disabled */ | |
474 | lpfc_sli_read_link_ste(phba); | |
475 | ||
476 | /* Reset the DFT_HBA_Q_DEPTH to the max xri */ | |
477 | i = (mb->un.varRdConfig.max_xri + 1); | |
478 | if (phba->cfg_hba_queue_depth > i) { | |
479 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
480 | "3359 HBA queue depth changed from %d to %d\n", | |
481 | phba->cfg_hba_queue_depth, i); | |
482 | phba->cfg_hba_queue_depth = i; | |
483 | } | |
484 | ||
485 | /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */ | |
486 | i = (mb->un.varRdConfig.max_xri >> 3); | |
487 | if (phba->pport->cfg_lun_queue_depth > i) { | |
488 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
489 | "3360 LUN queue depth changed from %d to %d\n", | |
490 | phba->pport->cfg_lun_queue_depth, i); | |
491 | phba->pport->cfg_lun_queue_depth = i; | |
492 | } | |
493 | ||
494 | phba->lmt = mb->un.varRdConfig.lmt; | |
495 | ||
496 | /* Get the default values for Model Name and Description */ | |
497 | lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); | |
498 | ||
499 | phba->link_state = LPFC_LINK_DOWN; | |
500 | ||
501 | /* Only process IOCBs on ELS ring till hba_state is READY */ | |
502 | if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr) | |
503 | psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; | |
504 | if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr) | |
505 | psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; | |
506 | if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr) | |
507 | psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; | |
508 | ||
509 | /* Post receive buffers for desired rings */ | |
510 | if (phba->sli_rev != 3) | |
511 | lpfc_post_rcv_buf(phba); | |
512 | ||
513 | /* | |
514 | * Configure HBA MSI-X attention conditions to messages if MSI-X mode | |
515 | */ | |
516 | if (phba->intr_type == MSIX) { | |
517 | rc = lpfc_config_msi(phba, pmb); | |
518 | if (rc) { | |
519 | mempool_free(pmb, phba->mbox_mem_pool); | |
520 | return -EIO; | |
521 | } | |
522 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
523 | if (rc != MBX_SUCCESS) { | |
524 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
525 | "0352 Config MSI mailbox command " | |
526 | "failed, mbxCmd x%x, mbxStatus x%x\n", | |
527 | pmb->u.mb.mbxCommand, | |
528 | pmb->u.mb.mbxStatus); | |
529 | mempool_free(pmb, phba->mbox_mem_pool); | |
530 | return -EIO; | |
531 | } | |
532 | } | |
533 | ||
534 | spin_lock_irq(&phba->hbalock); | |
535 | /* Initialize ERATT handling flag */ | |
536 | phba->hba_flag &= ~HBA_ERATT_HANDLED; | |
537 | ||
538 | /* Enable appropriate host interrupts */ | |
539 | if (lpfc_readl(phba->HCregaddr, &status)) { | |
540 | spin_unlock_irq(&phba->hbalock); | |
541 | return -EIO; | |
542 | } | |
543 | status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; | |
544 | if (psli->num_rings > 0) | |
545 | status |= HC_R0INT_ENA; | |
546 | if (psli->num_rings > 1) | |
547 | status |= HC_R1INT_ENA; | |
548 | if (psli->num_rings > 2) | |
549 | status |= HC_R2INT_ENA; | |
550 | if (psli->num_rings > 3) | |
551 | status |= HC_R3INT_ENA; | |
552 | ||
553 | if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && | |
554 | (phba->cfg_poll & DISABLE_FCP_RING_INT)) | |
555 | status &= ~(HC_R0INT_ENA); | |
556 | ||
557 | writel(status, phba->HCregaddr); | |
558 | readl(phba->HCregaddr); /* flush */ | |
559 | spin_unlock_irq(&phba->hbalock); | |
560 | ||
561 | /* Set up ring-0 (ELS) timer */ | |
562 | timeout = phba->fc_ratov * 2; | |
563 | mod_timer(&vport->els_tmofunc, | |
564 | jiffies + msecs_to_jiffies(1000 * timeout)); | |
565 | /* Set up heart beat (HB) timer */ | |
566 | mod_timer(&phba->hb_tmofunc, | |
567 | jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); | |
568 | phba->hb_outstanding = 0; | |
569 | phba->last_completion_time = jiffies; | |
570 | /* Set up error attention (ERATT) polling timer */ | |
571 | mod_timer(&phba->eratt_poll, | |
572 | jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval)); | |
573 | ||
574 | if (phba->hba_flag & LINK_DISABLED) { | |
575 | lpfc_printf_log(phba, | |
576 | KERN_ERR, LOG_INIT, | |
577 | "2598 Adapter Link is disabled.\n"); | |
578 | lpfc_down_link(phba, pmb); | |
579 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
580 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
581 | if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { | |
582 | lpfc_printf_log(phba, | |
583 | KERN_ERR, LOG_INIT, | |
584 | "2599 Adapter failed to issue DOWN_LINK" | |
585 | " mbox command rc 0x%x\n", rc); | |
586 | ||
587 | mempool_free(pmb, phba->mbox_mem_pool); | |
588 | return -EIO; | |
589 | } | |
590 | } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { | |
591 | mempool_free(pmb, phba->mbox_mem_pool); | |
592 | rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); | |
593 | if (rc) | |
594 | return rc; | |
595 | } | |
596 | /* MBOX buffer will be freed in mbox compl */ | |
597 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
598 | if (!pmb) { | |
599 | phba->link_state = LPFC_HBA_ERROR; | |
600 | return -ENOMEM; | |
601 | } | |
602 | ||
603 | lpfc_config_async(phba, pmb, LPFC_ELS_RING); | |
604 | pmb->mbox_cmpl = lpfc_config_async_cmpl; | |
605 | pmb->vport = phba->pport; | |
606 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
607 | ||
608 | if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { | |
609 | lpfc_printf_log(phba, | |
610 | KERN_ERR, | |
611 | LOG_INIT, | |
612 | "0456 Adapter failed to issue " | |
613 | "ASYNCEVT_ENABLE mbox status x%x\n", | |
614 | rc); | |
615 | mempool_free(pmb, phba->mbox_mem_pool); | |
616 | } | |
617 | ||
618 | /* Get Option rom version */ | |
619 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
620 | if (!pmb) { | |
621 | phba->link_state = LPFC_HBA_ERROR; | |
622 | return -ENOMEM; | |
623 | } | |
624 | ||
625 | lpfc_dump_wakeup_param(phba, pmb); | |
626 | pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; | |
627 | pmb->vport = phba->pport; | |
628 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
629 | ||
630 | if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { | |
631 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " | |
632 | "to get Option ROM version status x%x\n", rc); | |
633 | mempool_free(pmb, phba->mbox_mem_pool); | |
634 | } | |
635 | ||
636 | return 0; | |
637 | } | |
638 | ||
639 | /** | |
640 | * lpfc_hba_init_link - Initialize the FC link | |
641 | * @phba: pointer to lpfc hba data structure. | |
642 | * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT | |
643 | * | |
644 | * This routine will issue the INIT_LINK mailbox command call. | |
645 | * It is available to other drivers through the lpfc_hba data | |
646 | * structure for use as a delayed link up mechanism with the | |
647 | * module parameter lpfc_suppress_link_up. | |
648 | * | |
649 | * Return code | |
650 | * 0 - success | |
651 | * Any other value - error | |
652 | **/ | |
653 | static int | |
654 | lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) | |
655 | { | |
656 | return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); | |
657 | } | |
658 | ||
659 | /** | |
660 | * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology | |
661 | * @phba: pointer to lpfc hba data structure. | |
662 | * @fc_topology: desired fc topology. | |
663 | * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT | |
664 | * | |
665 | * This routine will issue the INIT_LINK mailbox command call. | |
666 | * It is available to other drivers through the lpfc_hba data | |
667 | * structure for use as a delayed link up mechanism with the | |
668 | * module parameter lpfc_suppress_link_up. | |
669 | * | |
670 | * Return code | |
671 | * 0 - success | |
672 | * Any other value - error | |
673 | **/ | |
674 | int | |
675 | lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, | |
676 | uint32_t flag) | |
677 | { | |
678 | struct lpfc_vport *vport = phba->pport; | |
679 | LPFC_MBOXQ_t *pmb; | |
680 | MAILBOX_t *mb; | |
681 | int rc; | |
682 | ||
683 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
684 | if (!pmb) { | |
685 | phba->link_state = LPFC_HBA_ERROR; | |
686 | return -ENOMEM; | |
687 | } | |
688 | mb = &pmb->u.mb; | |
689 | pmb->vport = vport; | |
690 | ||
691 | if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || | |
692 | ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && | |
693 | !(phba->lmt & LMT_1Gb)) || | |
694 | ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && | |
695 | !(phba->lmt & LMT_2Gb)) || | |
696 | ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && | |
697 | !(phba->lmt & LMT_4Gb)) || | |
698 | ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && | |
699 | !(phba->lmt & LMT_8Gb)) || | |
700 | ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && | |
701 | !(phba->lmt & LMT_10Gb)) || | |
702 | ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && | |
703 | !(phba->lmt & LMT_16Gb)) || | |
704 | ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) && | |
705 | !(phba->lmt & LMT_32Gb))) { | |
706 | /* Reset link speed to auto */ | |
707 | lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, | |
708 | "1302 Invalid speed for this board:%d " | |
709 | "Reset link speed to auto.\n", | |
710 | phba->cfg_link_speed); | |
711 | phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; | |
712 | } | |
713 | lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); | |
714 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
715 | if (phba->sli_rev < LPFC_SLI_REV4) | |
716 | lpfc_set_loopback_flag(phba); | |
717 | rc = lpfc_sli_issue_mbox(phba, pmb, flag); | |
718 | if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { | |
719 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
720 | "0498 Adapter failed to init, mbxCmd x%x " | |
721 | "INIT_LINK, mbxStatus x%x\n", | |
722 | mb->mbxCommand, mb->mbxStatus); | |
723 | if (phba->sli_rev <= LPFC_SLI_REV3) { | |
724 | /* Clear all interrupt enable conditions */ | |
725 | writel(0, phba->HCregaddr); | |
726 | readl(phba->HCregaddr); /* flush */ | |
727 | /* Clear all pending interrupts */ | |
728 | writel(0xffffffff, phba->HAregaddr); | |
729 | readl(phba->HAregaddr); /* flush */ | |
730 | } | |
731 | phba->link_state = LPFC_HBA_ERROR; | |
732 | if (rc != MBX_BUSY || flag == MBX_POLL) | |
733 | mempool_free(pmb, phba->mbox_mem_pool); | |
734 | return -EIO; | |
735 | } | |
736 | phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; | |
737 | if (flag == MBX_POLL) | |
738 | mempool_free(pmb, phba->mbox_mem_pool); | |
739 | ||
740 | return 0; | |
741 | } | |
742 | ||
743 | /** | |
744 | * lpfc_hba_down_link - this routine downs the FC link | |
745 | * @phba: pointer to lpfc hba data structure. | |
746 | * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT | |
747 | * | |
748 | * This routine will issue the DOWN_LINK mailbox command call. | |
749 | * It is available to other drivers through the lpfc_hba data | |
750 | * structure for use to stop the link. | |
751 | * | |
752 | * Return code | |
753 | * 0 - success | |
754 | * Any other value - error | |
755 | **/ | |
756 | static int | |
757 | lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) | |
758 | { | |
759 | LPFC_MBOXQ_t *pmb; | |
760 | int rc; | |
761 | ||
762 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
763 | if (!pmb) { | |
764 | phba->link_state = LPFC_HBA_ERROR; | |
765 | return -ENOMEM; | |
766 | } | |
767 | ||
768 | lpfc_printf_log(phba, | |
769 | KERN_ERR, LOG_INIT, | |
770 | "0491 Adapter Link is disabled.\n"); | |
771 | lpfc_down_link(phba, pmb); | |
772 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
773 | rc = lpfc_sli_issue_mbox(phba, pmb, flag); | |
774 | if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { | |
775 | lpfc_printf_log(phba, | |
776 | KERN_ERR, LOG_INIT, | |
777 | "2522 Adapter failed to issue DOWN_LINK" | |
778 | " mbox command rc 0x%x\n", rc); | |
779 | ||
780 | mempool_free(pmb, phba->mbox_mem_pool); | |
781 | return -EIO; | |
782 | } | |
783 | if (flag == MBX_POLL) | |
784 | mempool_free(pmb, phba->mbox_mem_pool); | |
785 | ||
786 | return 0; | |
787 | } | |
788 | ||
789 | /** | |
790 | * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset | |
791 | * @phba: pointer to lpfc HBA data structure. | |
792 | * | |
793 | * This routine will do LPFC uninitialization before the HBA is reset when | |
794 | * bringing down the SLI Layer. | |
795 | * | |
796 | * Return codes | |
797 | * 0 - success. | |
798 | * Any other value - error. | |
799 | **/ | |
800 | int | |
801 | lpfc_hba_down_prep(struct lpfc_hba *phba) | |
802 | { | |
803 | struct lpfc_vport **vports; | |
804 | int i; | |
805 | ||
806 | if (phba->sli_rev <= LPFC_SLI_REV3) { | |
807 | /* Disable interrupts */ | |
808 | writel(0, phba->HCregaddr); | |
809 | readl(phba->HCregaddr); /* flush */ | |
810 | } | |
811 | ||
812 | if (phba->pport->load_flag & FC_UNLOADING) | |
813 | lpfc_cleanup_discovery_resources(phba->pport); | |
814 | else { | |
815 | vports = lpfc_create_vport_work_array(phba); | |
816 | if (vports != NULL) | |
817 | for (i = 0; i <= phba->max_vports && | |
818 | vports[i] != NULL; i++) | |
819 | lpfc_cleanup_discovery_resources(vports[i]); | |
820 | lpfc_destroy_vport_work_array(phba, vports); | |
821 | } | |
822 | return 0; | |
823 | } | |
824 | ||
825 | /** | |
826 | * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free | |
827 | * rspiocb which got deferred | |
828 | * | |
829 | * @phba: pointer to lpfc HBA data structure. | |
830 | * | |
831 | * This routine will cleanup completed slow path events after HBA is reset | |
832 | * when bringing down the SLI Layer. | |
833 | * | |
834 | * | |
835 | * Return codes | |
836 | * void. | |
837 | **/ | |
838 | static void | |
839 | lpfc_sli4_free_sp_events(struct lpfc_hba *phba) | |
840 | { | |
841 | struct lpfc_iocbq *rspiocbq; | |
842 | struct hbq_dmabuf *dmabuf; | |
843 | struct lpfc_cq_event *cq_event; | |
844 | ||
845 | spin_lock_irq(&phba->hbalock); | |
846 | phba->hba_flag &= ~HBA_SP_QUEUE_EVT; | |
847 | spin_unlock_irq(&phba->hbalock); | |
848 | ||
849 | while (!list_empty(&phba->sli4_hba.sp_queue_event)) { | |
850 | /* Get the response iocb from the head of work queue */ | |
851 | spin_lock_irq(&phba->hbalock); | |
852 | list_remove_head(&phba->sli4_hba.sp_queue_event, | |
853 | cq_event, struct lpfc_cq_event, list); | |
854 | spin_unlock_irq(&phba->hbalock); | |
855 | ||
856 | switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) { | |
857 | case CQE_CODE_COMPL_WQE: | |
858 | rspiocbq = container_of(cq_event, struct lpfc_iocbq, | |
859 | cq_event); | |
860 | lpfc_sli_release_iocbq(phba, rspiocbq); | |
861 | break; | |
862 | case CQE_CODE_RECEIVE: | |
863 | case CQE_CODE_RECEIVE_V1: | |
864 | dmabuf = container_of(cq_event, struct hbq_dmabuf, | |
865 | cq_event); | |
866 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
867 | } | |
868 | } | |
869 | } | |
870 | ||
871 | /** | |
872 | * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset | |
873 | * @phba: pointer to lpfc HBA data structure. | |
874 | * | |
875 | * This routine will cleanup posted ELS buffers after the HBA is reset | |
876 | * when bringing down the SLI Layer. | |
877 | * | |
878 | * | |
879 | * Return codes | |
880 | * void. | |
881 | **/ | |
882 | static void | |
883 | lpfc_hba_free_post_buf(struct lpfc_hba *phba) | |
884 | { | |
885 | struct lpfc_sli *psli = &phba->sli; | |
886 | struct lpfc_sli_ring *pring; | |
887 | struct lpfc_dmabuf *mp, *next_mp; | |
888 | LIST_HEAD(buflist); | |
889 | int count; | |
890 | ||
891 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) | |
892 | lpfc_sli_hbqbuf_free_all(phba); | |
893 | else { | |
894 | /* Cleanup preposted buffers on the ELS ring */ | |
895 | pring = &psli->ring[LPFC_ELS_RING]; | |
896 | spin_lock_irq(&phba->hbalock); | |
897 | list_splice_init(&pring->postbufq, &buflist); | |
898 | spin_unlock_irq(&phba->hbalock); | |
899 | ||
900 | count = 0; | |
901 | list_for_each_entry_safe(mp, next_mp, &buflist, list) { | |
902 | list_del(&mp->list); | |
903 | count++; | |
904 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
905 | kfree(mp); | |
906 | } | |
907 | ||
908 | spin_lock_irq(&phba->hbalock); | |
909 | pring->postbufq_cnt -= count; | |
910 | spin_unlock_irq(&phba->hbalock); | |
911 | } | |
912 | } | |
913 | ||
914 | /** | |
915 | * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset | |
916 | * @phba: pointer to lpfc HBA data structure. | |
917 | * | |
918 | * This routine will cleanup the txcmplq after the HBA is reset when bringing | |
919 | * down the SLI Layer. | |
920 | * | |
921 | * Return codes | |
922 | * void | |
923 | **/ | |
924 | static void | |
925 | lpfc_hba_clean_txcmplq(struct lpfc_hba *phba) | |
926 | { | |
927 | struct lpfc_sli *psli = &phba->sli; | |
928 | struct lpfc_sli_ring *pring; | |
929 | LIST_HEAD(completions); | |
930 | int i; | |
931 | ||
932 | for (i = 0; i < psli->num_rings; i++) { | |
933 | pring = &psli->ring[i]; | |
934 | if (phba->sli_rev >= LPFC_SLI_REV4) | |
935 | spin_lock_irq(&pring->ring_lock); | |
936 | else | |
937 | spin_lock_irq(&phba->hbalock); | |
938 | /* At this point in time the HBA is either reset or DOA. Either | |
939 | * way, nothing should be on txcmplq as it will NEVER complete. | |
940 | */ | |
941 | list_splice_init(&pring->txcmplq, &completions); | |
942 | pring->txcmplq_cnt = 0; | |
943 | ||
944 | if (phba->sli_rev >= LPFC_SLI_REV4) | |
945 | spin_unlock_irq(&pring->ring_lock); | |
946 | else | |
947 | spin_unlock_irq(&phba->hbalock); | |
948 | ||
949 | /* Cancel all the IOCBs from the completions list */ | |
950 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
951 | IOERR_SLI_ABORTED); | |
952 | lpfc_sli_abort_iocb_ring(phba, pring); | |
953 | } | |
954 | } | |
955 | ||
956 | /** | |
957 | * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset | |
958 | int i; | |
959 | * @phba: pointer to lpfc HBA data structure. | |
960 | * | |
961 | * This routine will do uninitialization after the HBA is reset when bring | |
962 | * down the SLI Layer. | |
963 | * | |
964 | * Return codes | |
965 | * 0 - success. | |
966 | * Any other value - error. | |
967 | **/ | |
968 | static int | |
969 | lpfc_hba_down_post_s3(struct lpfc_hba *phba) | |
970 | { | |
971 | lpfc_hba_free_post_buf(phba); | |
972 | lpfc_hba_clean_txcmplq(phba); | |
973 | return 0; | |
974 | } | |
975 | ||
976 | /** | |
977 | * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset | |
978 | * @phba: pointer to lpfc HBA data structure. | |
979 | * | |
980 | * This routine will do uninitialization after the HBA is reset when bring | |
981 | * down the SLI Layer. | |
982 | * | |
983 | * Return codes | |
984 | * 0 - success. | |
985 | * Any other value - error. | |
986 | **/ | |
987 | static int | |
988 | lpfc_hba_down_post_s4(struct lpfc_hba *phba) | |
989 | { | |
990 | struct lpfc_scsi_buf *psb, *psb_next; | |
991 | LIST_HEAD(aborts); | |
992 | unsigned long iflag = 0; | |
993 | struct lpfc_sglq *sglq_entry = NULL; | |
994 | struct lpfc_sli *psli = &phba->sli; | |
995 | struct lpfc_sli_ring *pring; | |
996 | ||
997 | lpfc_hba_free_post_buf(phba); | |
998 | lpfc_hba_clean_txcmplq(phba); | |
999 | pring = &psli->ring[LPFC_ELS_RING]; | |
1000 | ||
1001 | /* At this point in time the HBA is either reset or DOA. Either | |
1002 | * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be | |
1003 | * on the lpfc_sgl_list so that it can either be freed if the | |
1004 | * driver is unloading or reposted if the driver is restarting | |
1005 | * the port. | |
1006 | */ | |
1007 | spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ | |
1008 | /* scsl_buf_list */ | |
1009 | /* abts_sgl_list_lock required because worker thread uses this | |
1010 | * list. | |
1011 | */ | |
1012 | spin_lock(&phba->sli4_hba.abts_sgl_list_lock); | |
1013 | list_for_each_entry(sglq_entry, | |
1014 | &phba->sli4_hba.lpfc_abts_els_sgl_list, list) | |
1015 | sglq_entry->state = SGL_FREED; | |
1016 | ||
1017 | spin_lock(&pring->ring_lock); | |
1018 | list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, | |
1019 | &phba->sli4_hba.lpfc_sgl_list); | |
1020 | spin_unlock(&pring->ring_lock); | |
1021 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); | |
1022 | /* abts_scsi_buf_list_lock required because worker thread uses this | |
1023 | * list. | |
1024 | */ | |
1025 | spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
1026 | list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, | |
1027 | &aborts); | |
1028 | spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
1029 | spin_unlock_irq(&phba->hbalock); | |
1030 | ||
1031 | list_for_each_entry_safe(psb, psb_next, &aborts, list) { | |
1032 | psb->pCmd = NULL; | |
1033 | psb->status = IOSTAT_SUCCESS; | |
1034 | } | |
1035 | spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); | |
1036 | list_splice(&aborts, &phba->lpfc_scsi_buf_list_put); | |
1037 | spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); | |
1038 | ||
1039 | lpfc_sli4_free_sp_events(phba); | |
1040 | return 0; | |
1041 | } | |
1042 | ||
1043 | /** | |
1044 | * lpfc_hba_down_post - Wrapper func for hba down post routine | |
1045 | * @phba: pointer to lpfc HBA data structure. | |
1046 | * | |
1047 | * This routine wraps the actual SLI3 or SLI4 routine for performing | |
1048 | * uninitialization after the HBA is reset when bring down the SLI Layer. | |
1049 | * | |
1050 | * Return codes | |
1051 | * 0 - success. | |
1052 | * Any other value - error. | |
1053 | **/ | |
1054 | int | |
1055 | lpfc_hba_down_post(struct lpfc_hba *phba) | |
1056 | { | |
1057 | return (*phba->lpfc_hba_down_post)(phba); | |
1058 | } | |
1059 | ||
1060 | /** | |
1061 | * lpfc_hb_timeout - The HBA-timer timeout handler | |
1062 | * @ptr: unsigned long holds the pointer to lpfc hba data structure. | |
1063 | * | |
1064 | * This is the HBA-timer timeout handler registered to the lpfc driver. When | |
1065 | * this timer fires, a HBA timeout event shall be posted to the lpfc driver | |
1066 | * work-port-events bitmap and the worker thread is notified. This timeout | |
1067 | * event will be used by the worker thread to invoke the actual timeout | |
1068 | * handler routine, lpfc_hb_timeout_handler. Any periodical operations will | |
1069 | * be performed in the timeout handler and the HBA timeout event bit shall | |
1070 | * be cleared by the worker thread after it has taken the event bitmap out. | |
1071 | **/ | |
1072 | static void | |
1073 | lpfc_hb_timeout(unsigned long ptr) | |
1074 | { | |
1075 | struct lpfc_hba *phba; | |
1076 | uint32_t tmo_posted; | |
1077 | unsigned long iflag; | |
1078 | ||
1079 | phba = (struct lpfc_hba *)ptr; | |
1080 | ||
1081 | /* Check for heart beat timeout conditions */ | |
1082 | spin_lock_irqsave(&phba->pport->work_port_lock, iflag); | |
1083 | tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; | |
1084 | if (!tmo_posted) | |
1085 | phba->pport->work_port_events |= WORKER_HB_TMO; | |
1086 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); | |
1087 | ||
1088 | /* Tell the worker thread there is work to do */ | |
1089 | if (!tmo_posted) | |
1090 | lpfc_worker_wake_up(phba); | |
1091 | return; | |
1092 | } | |
1093 | ||
1094 | /** | |
1095 | * lpfc_rrq_timeout - The RRQ-timer timeout handler | |
1096 | * @ptr: unsigned long holds the pointer to lpfc hba data structure. | |
1097 | * | |
1098 | * This is the RRQ-timer timeout handler registered to the lpfc driver. When | |
1099 | * this timer fires, a RRQ timeout event shall be posted to the lpfc driver | |
1100 | * work-port-events bitmap and the worker thread is notified. This timeout | |
1101 | * event will be used by the worker thread to invoke the actual timeout | |
1102 | * handler routine, lpfc_rrq_handler. Any periodical operations will | |
1103 | * be performed in the timeout handler and the RRQ timeout event bit shall | |
1104 | * be cleared by the worker thread after it has taken the event bitmap out. | |
1105 | **/ | |
1106 | static void | |
1107 | lpfc_rrq_timeout(unsigned long ptr) | |
1108 | { | |
1109 | struct lpfc_hba *phba; | |
1110 | unsigned long iflag; | |
1111 | ||
1112 | phba = (struct lpfc_hba *)ptr; | |
1113 | spin_lock_irqsave(&phba->pport->work_port_lock, iflag); | |
1114 | if (!(phba->pport->load_flag & FC_UNLOADING)) | |
1115 | phba->hba_flag |= HBA_RRQ_ACTIVE; | |
1116 | else | |
1117 | phba->hba_flag &= ~HBA_RRQ_ACTIVE; | |
1118 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); | |
1119 | ||
1120 | if (!(phba->pport->load_flag & FC_UNLOADING)) | |
1121 | lpfc_worker_wake_up(phba); | |
1122 | } | |
1123 | ||
1124 | /** | |
1125 | * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function | |
1126 | * @phba: pointer to lpfc hba data structure. | |
1127 | * @pmboxq: pointer to the driver internal queue element for mailbox command. | |
1128 | * | |
1129 | * This is the callback function to the lpfc heart-beat mailbox command. | |
1130 | * If configured, the lpfc driver issues the heart-beat mailbox command to | |
1131 | * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the | |
1132 | * heart-beat mailbox command is issued, the driver shall set up heart-beat | |
1133 | * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks | |
1134 | * heart-beat outstanding state. Once the mailbox command comes back and | |
1135 | * no error conditions detected, the heart-beat mailbox command timer is | |
1136 | * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding | |
1137 | * state is cleared for the next heart-beat. If the timer expired with the | |
1138 | * heart-beat outstanding state set, the driver will put the HBA offline. | |
1139 | **/ | |
1140 | static void | |
1141 | lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) | |
1142 | { | |
1143 | unsigned long drvr_flag; | |
1144 | ||
1145 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
1146 | phba->hb_outstanding = 0; | |
1147 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
1148 | ||
1149 | /* Check and reset heart-beat timer is necessary */ | |
1150 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
1151 | if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && | |
1152 | !(phba->link_state == LPFC_HBA_ERROR) && | |
1153 | !(phba->pport->load_flag & FC_UNLOADING)) | |
1154 | mod_timer(&phba->hb_tmofunc, | |
1155 | jiffies + | |
1156 | msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); | |
1157 | return; | |
1158 | } | |
1159 | ||
1160 | /** | |
1161 | * lpfc_hb_timeout_handler - The HBA-timer timeout handler | |
1162 | * @phba: pointer to lpfc hba data structure. | |
1163 | * | |
1164 | * This is the actual HBA-timer timeout handler to be invoked by the worker | |
1165 | * thread whenever the HBA timer fired and HBA-timeout event posted. This | |
1166 | * handler performs any periodic operations needed for the device. If such | |
1167 | * periodic event has already been attended to either in the interrupt handler | |
1168 | * or by processing slow-ring or fast-ring events within the HBA-timer | |
1169 | * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets | |
1170 | * the timer for the next timeout period. If lpfc heart-beat mailbox command | |
1171 | * is configured and there is no heart-beat mailbox command outstanding, a | |
1172 | * heart-beat mailbox is issued and timer set properly. Otherwise, if there | |
1173 | * has been a heart-beat mailbox command outstanding, the HBA shall be put | |
1174 | * to offline. | |
1175 | **/ | |
1176 | void | |
1177 | lpfc_hb_timeout_handler(struct lpfc_hba *phba) | |
1178 | { | |
1179 | struct lpfc_vport **vports; | |
1180 | LPFC_MBOXQ_t *pmboxq; | |
1181 | struct lpfc_dmabuf *buf_ptr; | |
1182 | int retval, i; | |
1183 | struct lpfc_sli *psli = &phba->sli; | |
1184 | LIST_HEAD(completions); | |
1185 | ||
1186 | vports = lpfc_create_vport_work_array(phba); | |
1187 | if (vports != NULL) | |
1188 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
1189 | lpfc_rcv_seq_check_edtov(vports[i]); | |
1190 | lpfc_fdmi_num_disc_check(vports[i]); | |
1191 | } | |
1192 | lpfc_destroy_vport_work_array(phba, vports); | |
1193 | ||
1194 | if ((phba->link_state == LPFC_HBA_ERROR) || | |
1195 | (phba->pport->load_flag & FC_UNLOADING) || | |
1196 | (phba->pport->fc_flag & FC_OFFLINE_MODE)) | |
1197 | return; | |
1198 | ||
1199 | spin_lock_irq(&phba->pport->work_port_lock); | |
1200 | ||
1201 | if (time_after(phba->last_completion_time + | |
1202 | msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL), | |
1203 | jiffies)) { | |
1204 | spin_unlock_irq(&phba->pport->work_port_lock); | |
1205 | if (!phba->hb_outstanding) | |
1206 | mod_timer(&phba->hb_tmofunc, | |
1207 | jiffies + | |
1208 | msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); | |
1209 | else | |
1210 | mod_timer(&phba->hb_tmofunc, | |
1211 | jiffies + | |
1212 | msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); | |
1213 | return; | |
1214 | } | |
1215 | spin_unlock_irq(&phba->pport->work_port_lock); | |
1216 | ||
1217 | if (phba->elsbuf_cnt && | |
1218 | (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { | |
1219 | spin_lock_irq(&phba->hbalock); | |
1220 | list_splice_init(&phba->elsbuf, &completions); | |
1221 | phba->elsbuf_cnt = 0; | |
1222 | phba->elsbuf_prev_cnt = 0; | |
1223 | spin_unlock_irq(&phba->hbalock); | |
1224 | ||
1225 | while (!list_empty(&completions)) { | |
1226 | list_remove_head(&completions, buf_ptr, | |
1227 | struct lpfc_dmabuf, list); | |
1228 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
1229 | kfree(buf_ptr); | |
1230 | } | |
1231 | } | |
1232 | phba->elsbuf_prev_cnt = phba->elsbuf_cnt; | |
1233 | ||
1234 | /* If there is no heart beat outstanding, issue a heartbeat command */ | |
1235 | if (phba->cfg_enable_hba_heartbeat) { | |
1236 | if (!phba->hb_outstanding) { | |
1237 | if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && | |
1238 | (list_empty(&psli->mboxq))) { | |
1239 | pmboxq = mempool_alloc(phba->mbox_mem_pool, | |
1240 | GFP_KERNEL); | |
1241 | if (!pmboxq) { | |
1242 | mod_timer(&phba->hb_tmofunc, | |
1243 | jiffies + | |
1244 | msecs_to_jiffies(1000 * | |
1245 | LPFC_HB_MBOX_INTERVAL)); | |
1246 | return; | |
1247 | } | |
1248 | ||
1249 | lpfc_heart_beat(phba, pmboxq); | |
1250 | pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; | |
1251 | pmboxq->vport = phba->pport; | |
1252 | retval = lpfc_sli_issue_mbox(phba, pmboxq, | |
1253 | MBX_NOWAIT); | |
1254 | ||
1255 | if (retval != MBX_BUSY && | |
1256 | retval != MBX_SUCCESS) { | |
1257 | mempool_free(pmboxq, | |
1258 | phba->mbox_mem_pool); | |
1259 | mod_timer(&phba->hb_tmofunc, | |
1260 | jiffies + | |
1261 | msecs_to_jiffies(1000 * | |
1262 | LPFC_HB_MBOX_INTERVAL)); | |
1263 | return; | |
1264 | } | |
1265 | phba->skipped_hb = 0; | |
1266 | phba->hb_outstanding = 1; | |
1267 | } else if (time_before_eq(phba->last_completion_time, | |
1268 | phba->skipped_hb)) { | |
1269 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
1270 | "2857 Last completion time not " | |
1271 | " updated in %d ms\n", | |
1272 | jiffies_to_msecs(jiffies | |
1273 | - phba->last_completion_time)); | |
1274 | } else | |
1275 | phba->skipped_hb = jiffies; | |
1276 | ||
1277 | mod_timer(&phba->hb_tmofunc, | |
1278 | jiffies + | |
1279 | msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); | |
1280 | return; | |
1281 | } else { | |
1282 | /* | |
1283 | * If heart beat timeout called with hb_outstanding set | |
1284 | * we need to give the hb mailbox cmd a chance to | |
1285 | * complete or TMO. | |
1286 | */ | |
1287 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
1288 | "0459 Adapter heartbeat still out" | |
1289 | "standing:last compl time was %d ms.\n", | |
1290 | jiffies_to_msecs(jiffies | |
1291 | - phba->last_completion_time)); | |
1292 | mod_timer(&phba->hb_tmofunc, | |
1293 | jiffies + | |
1294 | msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); | |
1295 | } | |
1296 | } else { | |
1297 | mod_timer(&phba->hb_tmofunc, | |
1298 | jiffies + | |
1299 | msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); | |
1300 | } | |
1301 | } | |
1302 | ||
1303 | /** | |
1304 | * lpfc_offline_eratt - Bring lpfc offline on hardware error attention | |
1305 | * @phba: pointer to lpfc hba data structure. | |
1306 | * | |
1307 | * This routine is called to bring the HBA offline when HBA hardware error | |
1308 | * other than Port Error 6 has been detected. | |
1309 | **/ | |
1310 | static void | |
1311 | lpfc_offline_eratt(struct lpfc_hba *phba) | |
1312 | { | |
1313 | struct lpfc_sli *psli = &phba->sli; | |
1314 | ||
1315 | spin_lock_irq(&phba->hbalock); | |
1316 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; | |
1317 | spin_unlock_irq(&phba->hbalock); | |
1318 | lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); | |
1319 | ||
1320 | lpfc_offline(phba); | |
1321 | lpfc_reset_barrier(phba); | |
1322 | spin_lock_irq(&phba->hbalock); | |
1323 | lpfc_sli_brdreset(phba); | |
1324 | spin_unlock_irq(&phba->hbalock); | |
1325 | lpfc_hba_down_post(phba); | |
1326 | lpfc_sli_brdready(phba, HS_MBRDY); | |
1327 | lpfc_unblock_mgmt_io(phba); | |
1328 | phba->link_state = LPFC_HBA_ERROR; | |
1329 | return; | |
1330 | } | |
1331 | ||
1332 | /** | |
1333 | * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention | |
1334 | * @phba: pointer to lpfc hba data structure. | |
1335 | * | |
1336 | * This routine is called to bring a SLI4 HBA offline when HBA hardware error | |
1337 | * other than Port Error 6 has been detected. | |
1338 | **/ | |
1339 | void | |
1340 | lpfc_sli4_offline_eratt(struct lpfc_hba *phba) | |
1341 | { | |
1342 | spin_lock_irq(&phba->hbalock); | |
1343 | phba->link_state = LPFC_HBA_ERROR; | |
1344 | spin_unlock_irq(&phba->hbalock); | |
1345 | ||
1346 | lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); | |
1347 | lpfc_offline(phba); | |
1348 | lpfc_hba_down_post(phba); | |
1349 | lpfc_unblock_mgmt_io(phba); | |
1350 | } | |
1351 | ||
1352 | /** | |
1353 | * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler | |
1354 | * @phba: pointer to lpfc hba data structure. | |
1355 | * | |
1356 | * This routine is invoked to handle the deferred HBA hardware error | |
1357 | * conditions. This type of error is indicated by HBA by setting ER1 | |
1358 | * and another ER bit in the host status register. The driver will | |
1359 | * wait until the ER1 bit clears before handling the error condition. | |
1360 | **/ | |
1361 | static void | |
1362 | lpfc_handle_deferred_eratt(struct lpfc_hba *phba) | |
1363 | { | |
1364 | uint32_t old_host_status = phba->work_hs; | |
1365 | struct lpfc_sli *psli = &phba->sli; | |
1366 | ||
1367 | /* If the pci channel is offline, ignore possible errors, | |
1368 | * since we cannot communicate with the pci card anyway. | |
1369 | */ | |
1370 | if (pci_channel_offline(phba->pcidev)) { | |
1371 | spin_lock_irq(&phba->hbalock); | |
1372 | phba->hba_flag &= ~DEFER_ERATT; | |
1373 | spin_unlock_irq(&phba->hbalock); | |
1374 | return; | |
1375 | } | |
1376 | ||
1377 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1378 | "0479 Deferred Adapter Hardware Error " | |
1379 | "Data: x%x x%x x%x\n", | |
1380 | phba->work_hs, | |
1381 | phba->work_status[0], phba->work_status[1]); | |
1382 | ||
1383 | spin_lock_irq(&phba->hbalock); | |
1384 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; | |
1385 | spin_unlock_irq(&phba->hbalock); | |
1386 | ||
1387 | ||
1388 | /* | |
1389 | * Firmware stops when it triggred erratt. That could cause the I/Os | |
1390 | * dropped by the firmware. Error iocb (I/O) on txcmplq and let the | |
1391 | * SCSI layer retry it after re-establishing link. | |
1392 | */ | |
1393 | lpfc_sli_abort_fcp_rings(phba); | |
1394 | ||
1395 | /* | |
1396 | * There was a firmware error. Take the hba offline and then | |
1397 | * attempt to restart it. | |
1398 | */ | |
1399 | lpfc_offline_prep(phba, LPFC_MBX_WAIT); | |
1400 | lpfc_offline(phba); | |
1401 | ||
1402 | /* Wait for the ER1 bit to clear.*/ | |
1403 | while (phba->work_hs & HS_FFER1) { | |
1404 | msleep(100); | |
1405 | if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { | |
1406 | phba->work_hs = UNPLUG_ERR ; | |
1407 | break; | |
1408 | } | |
1409 | /* If driver is unloading let the worker thread continue */ | |
1410 | if (phba->pport->load_flag & FC_UNLOADING) { | |
1411 | phba->work_hs = 0; | |
1412 | break; | |
1413 | } | |
1414 | } | |
1415 | ||
1416 | /* | |
1417 | * This is to ptrotect against a race condition in which | |
1418 | * first write to the host attention register clear the | |
1419 | * host status register. | |
1420 | */ | |
1421 | if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) | |
1422 | phba->work_hs = old_host_status & ~HS_FFER1; | |
1423 | ||
1424 | spin_lock_irq(&phba->hbalock); | |
1425 | phba->hba_flag &= ~DEFER_ERATT; | |
1426 | spin_unlock_irq(&phba->hbalock); | |
1427 | phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); | |
1428 | phba->work_status[1] = readl(phba->MBslimaddr + 0xac); | |
1429 | } | |
1430 | ||
1431 | static void | |
1432 | lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) | |
1433 | { | |
1434 | struct lpfc_board_event_header board_event; | |
1435 | struct Scsi_Host *shost; | |
1436 | ||
1437 | board_event.event_type = FC_REG_BOARD_EVENT; | |
1438 | board_event.subcategory = LPFC_EVENT_PORTINTERR; | |
1439 | shost = lpfc_shost_from_vport(phba->pport); | |
1440 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
1441 | sizeof(board_event), | |
1442 | (char *) &board_event, | |
1443 | LPFC_NL_VENDOR_ID); | |
1444 | } | |
1445 | ||
1446 | /** | |
1447 | * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler | |
1448 | * @phba: pointer to lpfc hba data structure. | |
1449 | * | |
1450 | * This routine is invoked to handle the following HBA hardware error | |
1451 | * conditions: | |
1452 | * 1 - HBA error attention interrupt | |
1453 | * 2 - DMA ring index out of range | |
1454 | * 3 - Mailbox command came back as unknown | |
1455 | **/ | |
1456 | static void | |
1457 | lpfc_handle_eratt_s3(struct lpfc_hba *phba) | |
1458 | { | |
1459 | struct lpfc_vport *vport = phba->pport; | |
1460 | struct lpfc_sli *psli = &phba->sli; | |
1461 | uint32_t event_data; | |
1462 | unsigned long temperature; | |
1463 | struct temp_event temp_event_data; | |
1464 | struct Scsi_Host *shost; | |
1465 | ||
1466 | /* If the pci channel is offline, ignore possible errors, | |
1467 | * since we cannot communicate with the pci card anyway. | |
1468 | */ | |
1469 | if (pci_channel_offline(phba->pcidev)) { | |
1470 | spin_lock_irq(&phba->hbalock); | |
1471 | phba->hba_flag &= ~DEFER_ERATT; | |
1472 | spin_unlock_irq(&phba->hbalock); | |
1473 | return; | |
1474 | } | |
1475 | ||
1476 | /* If resets are disabled then leave the HBA alone and return */ | |
1477 | if (!phba->cfg_enable_hba_reset) | |
1478 | return; | |
1479 | ||
1480 | /* Send an internal error event to mgmt application */ | |
1481 | lpfc_board_errevt_to_mgmt(phba); | |
1482 | ||
1483 | if (phba->hba_flag & DEFER_ERATT) | |
1484 | lpfc_handle_deferred_eratt(phba); | |
1485 | ||
1486 | if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { | |
1487 | if (phba->work_hs & HS_FFER6) | |
1488 | /* Re-establishing Link */ | |
1489 | lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, | |
1490 | "1301 Re-establishing Link " | |
1491 | "Data: x%x x%x x%x\n", | |
1492 | phba->work_hs, phba->work_status[0], | |
1493 | phba->work_status[1]); | |
1494 | if (phba->work_hs & HS_FFER8) | |
1495 | /* Device Zeroization */ | |
1496 | lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, | |
1497 | "2861 Host Authentication device " | |
1498 | "zeroization Data:x%x x%x x%x\n", | |
1499 | phba->work_hs, phba->work_status[0], | |
1500 | phba->work_status[1]); | |
1501 | ||
1502 | spin_lock_irq(&phba->hbalock); | |
1503 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; | |
1504 | spin_unlock_irq(&phba->hbalock); | |
1505 | ||
1506 | /* | |
1507 | * Firmware stops when it triggled erratt with HS_FFER6. | |
1508 | * That could cause the I/Os dropped by the firmware. | |
1509 | * Error iocb (I/O) on txcmplq and let the SCSI layer | |
1510 | * retry it after re-establishing link. | |
1511 | */ | |
1512 | lpfc_sli_abort_fcp_rings(phba); | |
1513 | ||
1514 | /* | |
1515 | * There was a firmware error. Take the hba offline and then | |
1516 | * attempt to restart it. | |
1517 | */ | |
1518 | lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); | |
1519 | lpfc_offline(phba); | |
1520 | lpfc_sli_brdrestart(phba); | |
1521 | if (lpfc_online(phba) == 0) { /* Initialize the HBA */ | |
1522 | lpfc_unblock_mgmt_io(phba); | |
1523 | return; | |
1524 | } | |
1525 | lpfc_unblock_mgmt_io(phba); | |
1526 | } else if (phba->work_hs & HS_CRIT_TEMP) { | |
1527 | temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); | |
1528 | temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; | |
1529 | temp_event_data.event_code = LPFC_CRIT_TEMP; | |
1530 | temp_event_data.data = (uint32_t)temperature; | |
1531 | ||
1532 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1533 | "0406 Adapter maximum temperature exceeded " | |
1534 | "(%ld), taking this port offline " | |
1535 | "Data: x%x x%x x%x\n", | |
1536 | temperature, phba->work_hs, | |
1537 | phba->work_status[0], phba->work_status[1]); | |
1538 | ||
1539 | shost = lpfc_shost_from_vport(phba->pport); | |
1540 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
1541 | sizeof(temp_event_data), | |
1542 | (char *) &temp_event_data, | |
1543 | SCSI_NL_VID_TYPE_PCI | |
1544 | | PCI_VENDOR_ID_EMULEX); | |
1545 | ||
1546 | spin_lock_irq(&phba->hbalock); | |
1547 | phba->over_temp_state = HBA_OVER_TEMP; | |
1548 | spin_unlock_irq(&phba->hbalock); | |
1549 | lpfc_offline_eratt(phba); | |
1550 | ||
1551 | } else { | |
1552 | /* The if clause above forces this code path when the status | |
1553 | * failure is a value other than FFER6. Do not call the offline | |
1554 | * twice. This is the adapter hardware error path. | |
1555 | */ | |
1556 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1557 | "0457 Adapter Hardware Error " | |
1558 | "Data: x%x x%x x%x\n", | |
1559 | phba->work_hs, | |
1560 | phba->work_status[0], phba->work_status[1]); | |
1561 | ||
1562 | event_data = FC_REG_DUMP_EVENT; | |
1563 | shost = lpfc_shost_from_vport(vport); | |
1564 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
1565 | sizeof(event_data), (char *) &event_data, | |
1566 | SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); | |
1567 | ||
1568 | lpfc_offline_eratt(phba); | |
1569 | } | |
1570 | return; | |
1571 | } | |
1572 | ||
1573 | /** | |
1574 | * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg | |
1575 | * @phba: pointer to lpfc hba data structure. | |
1576 | * @mbx_action: flag for mailbox shutdown action. | |
1577 | * | |
1578 | * This routine is invoked to perform an SLI4 port PCI function reset in | |
1579 | * response to port status register polling attention. It waits for port | |
1580 | * status register (ERR, RDY, RN) bits before proceeding with function reset. | |
1581 | * During this process, interrupt vectors are freed and later requested | |
1582 | * for handling possible port resource change. | |
1583 | **/ | |
1584 | static int | |
1585 | lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action, | |
1586 | bool en_rn_msg) | |
1587 | { | |
1588 | int rc; | |
1589 | uint32_t intr_mode; | |
1590 | ||
1591 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == | |
1592 | LPFC_SLI_INTF_IF_TYPE_2) { | |
1593 | /* | |
1594 | * On error status condition, driver need to wait for port | |
1595 | * ready before performing reset. | |
1596 | */ | |
1597 | rc = lpfc_sli4_pdev_status_reg_wait(phba); | |
1598 | if (rc) | |
1599 | return rc; | |
1600 | } | |
1601 | ||
1602 | /* need reset: attempt for port recovery */ | |
1603 | if (en_rn_msg) | |
1604 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1605 | "2887 Reset Needed: Attempting Port " | |
1606 | "Recovery...\n"); | |
1607 | lpfc_offline_prep(phba, mbx_action); | |
1608 | lpfc_offline(phba); | |
1609 | /* release interrupt for possible resource change */ | |
1610 | lpfc_sli4_disable_intr(phba); | |
1611 | lpfc_sli_brdrestart(phba); | |
1612 | /* request and enable interrupt */ | |
1613 | intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); | |
1614 | if (intr_mode == LPFC_INTR_ERROR) { | |
1615 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1616 | "3175 Failed to enable interrupt\n"); | |
1617 | return -EIO; | |
1618 | } | |
1619 | phba->intr_mode = intr_mode; | |
1620 | rc = lpfc_online(phba); | |
1621 | if (rc == 0) | |
1622 | lpfc_unblock_mgmt_io(phba); | |
1623 | ||
1624 | return rc; | |
1625 | } | |
1626 | ||
1627 | /** | |
1628 | * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler | |
1629 | * @phba: pointer to lpfc hba data structure. | |
1630 | * | |
1631 | * This routine is invoked to handle the SLI4 HBA hardware error attention | |
1632 | * conditions. | |
1633 | **/ | |
1634 | static void | |
1635 | lpfc_handle_eratt_s4(struct lpfc_hba *phba) | |
1636 | { | |
1637 | struct lpfc_vport *vport = phba->pport; | |
1638 | uint32_t event_data; | |
1639 | struct Scsi_Host *shost; | |
1640 | uint32_t if_type; | |
1641 | struct lpfc_register portstat_reg = {0}; | |
1642 | uint32_t reg_err1, reg_err2; | |
1643 | uint32_t uerrlo_reg, uemasklo_reg; | |
1644 | uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2; | |
1645 | bool en_rn_msg = true; | |
1646 | struct temp_event temp_event_data; | |
1647 | struct lpfc_register portsmphr_reg; | |
1648 | int rc, i; | |
1649 | ||
1650 | /* If the pci channel is offline, ignore possible errors, since | |
1651 | * we cannot communicate with the pci card anyway. | |
1652 | */ | |
1653 | if (pci_channel_offline(phba->pcidev)) | |
1654 | return; | |
1655 | ||
1656 | memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); | |
1657 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); | |
1658 | switch (if_type) { | |
1659 | case LPFC_SLI_INTF_IF_TYPE_0: | |
1660 | pci_rd_rc1 = lpfc_readl( | |
1661 | phba->sli4_hba.u.if_type0.UERRLOregaddr, | |
1662 | &uerrlo_reg); | |
1663 | pci_rd_rc2 = lpfc_readl( | |
1664 | phba->sli4_hba.u.if_type0.UEMASKLOregaddr, | |
1665 | &uemasklo_reg); | |
1666 | /* consider PCI bus read error as pci_channel_offline */ | |
1667 | if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) | |
1668 | return; | |
1669 | if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) { | |
1670 | lpfc_sli4_offline_eratt(phba); | |
1671 | return; | |
1672 | } | |
1673 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1674 | "7623 Checking UE recoverable"); | |
1675 | ||
1676 | for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) { | |
1677 | if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, | |
1678 | &portsmphr_reg.word0)) | |
1679 | continue; | |
1680 | ||
1681 | smphr_port_status = bf_get(lpfc_port_smphr_port_status, | |
1682 | &portsmphr_reg); | |
1683 | if ((smphr_port_status & LPFC_PORT_SEM_MASK) == | |
1684 | LPFC_PORT_SEM_UE_RECOVERABLE) | |
1685 | break; | |
1686 | /*Sleep for 1Sec, before checking SEMAPHORE */ | |
1687 | msleep(1000); | |
1688 | } | |
1689 | ||
1690 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1691 | "4827 smphr_port_status x%x : Waited %dSec", | |
1692 | smphr_port_status, i); | |
1693 | ||
1694 | /* Recoverable UE, reset the HBA device */ | |
1695 | if ((smphr_port_status & LPFC_PORT_SEM_MASK) == | |
1696 | LPFC_PORT_SEM_UE_RECOVERABLE) { | |
1697 | for (i = 0; i < 20; i++) { | |
1698 | msleep(1000); | |
1699 | if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr, | |
1700 | &portsmphr_reg.word0) && | |
1701 | (LPFC_POST_STAGE_PORT_READY == | |
1702 | bf_get(lpfc_port_smphr_port_status, | |
1703 | &portsmphr_reg))) { | |
1704 | rc = lpfc_sli4_port_sta_fn_reset(phba, | |
1705 | LPFC_MBX_NO_WAIT, en_rn_msg); | |
1706 | if (rc == 0) | |
1707 | return; | |
1708 | lpfc_printf_log(phba, | |
1709 | KERN_ERR, LOG_INIT, | |
1710 | "4215 Failed to recover UE"); | |
1711 | break; | |
1712 | } | |
1713 | } | |
1714 | } | |
1715 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1716 | "7624 Firmware not ready: Failing UE recovery," | |
1717 | " waited %dSec", i); | |
1718 | lpfc_sli4_offline_eratt(phba); | |
1719 | break; | |
1720 | ||
1721 | case LPFC_SLI_INTF_IF_TYPE_2: | |
1722 | pci_rd_rc1 = lpfc_readl( | |
1723 | phba->sli4_hba.u.if_type2.STATUSregaddr, | |
1724 | &portstat_reg.word0); | |
1725 | /* consider PCI bus read error as pci_channel_offline */ | |
1726 | if (pci_rd_rc1 == -EIO) { | |
1727 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1728 | "3151 PCI bus read access failure: x%x\n", | |
1729 | readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); | |
1730 | return; | |
1731 | } | |
1732 | reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); | |
1733 | reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); | |
1734 | if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { | |
1735 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1736 | "2889 Port Overtemperature event, " | |
1737 | "taking port offline Data: x%x x%x\n", | |
1738 | reg_err1, reg_err2); | |
1739 | ||
1740 | phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; | |
1741 | temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; | |
1742 | temp_event_data.event_code = LPFC_CRIT_TEMP; | |
1743 | temp_event_data.data = 0xFFFFFFFF; | |
1744 | ||
1745 | shost = lpfc_shost_from_vport(phba->pport); | |
1746 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
1747 | sizeof(temp_event_data), | |
1748 | (char *)&temp_event_data, | |
1749 | SCSI_NL_VID_TYPE_PCI | |
1750 | | PCI_VENDOR_ID_EMULEX); | |
1751 | ||
1752 | spin_lock_irq(&phba->hbalock); | |
1753 | phba->over_temp_state = HBA_OVER_TEMP; | |
1754 | spin_unlock_irq(&phba->hbalock); | |
1755 | lpfc_sli4_offline_eratt(phba); | |
1756 | return; | |
1757 | } | |
1758 | if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && | |
1759 | reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) { | |
1760 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1761 | "3143 Port Down: Firmware Update " | |
1762 | "Detected\n"); | |
1763 | en_rn_msg = false; | |
1764 | } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && | |
1765 | reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) | |
1766 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1767 | "3144 Port Down: Debug Dump\n"); | |
1768 | else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && | |
1769 | reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) | |
1770 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1771 | "3145 Port Down: Provisioning\n"); | |
1772 | ||
1773 | /* If resets are disabled then leave the HBA alone and return */ | |
1774 | if (!phba->cfg_enable_hba_reset) | |
1775 | return; | |
1776 | ||
1777 | /* Check port status register for function reset */ | |
1778 | rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT, | |
1779 | en_rn_msg); | |
1780 | if (rc == 0) { | |
1781 | /* don't report event on forced debug dump */ | |
1782 | if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && | |
1783 | reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) | |
1784 | return; | |
1785 | else | |
1786 | break; | |
1787 | } | |
1788 | /* fall through for not able to recover */ | |
1789 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1790 | "3152 Unrecoverable error, bring the port " | |
1791 | "offline\n"); | |
1792 | lpfc_sli4_offline_eratt(phba); | |
1793 | break; | |
1794 | case LPFC_SLI_INTF_IF_TYPE_1: | |
1795 | default: | |
1796 | break; | |
1797 | } | |
1798 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
1799 | "3123 Report dump event to upper layer\n"); | |
1800 | /* Send an internal error event to mgmt application */ | |
1801 | lpfc_board_errevt_to_mgmt(phba); | |
1802 | ||
1803 | event_data = FC_REG_DUMP_EVENT; | |
1804 | shost = lpfc_shost_from_vport(vport); | |
1805 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
1806 | sizeof(event_data), (char *) &event_data, | |
1807 | SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); | |
1808 | } | |
1809 | ||
1810 | /** | |
1811 | * lpfc_handle_eratt - Wrapper func for handling hba error attention | |
1812 | * @phba: pointer to lpfc HBA data structure. | |
1813 | * | |
1814 | * This routine wraps the actual SLI3 or SLI4 hba error attention handling | |
1815 | * routine from the API jump table function pointer from the lpfc_hba struct. | |
1816 | * | |
1817 | * Return codes | |
1818 | * 0 - success. | |
1819 | * Any other value - error. | |
1820 | **/ | |
1821 | void | |
1822 | lpfc_handle_eratt(struct lpfc_hba *phba) | |
1823 | { | |
1824 | (*phba->lpfc_handle_eratt)(phba); | |
1825 | } | |
1826 | ||
1827 | /** | |
1828 | * lpfc_handle_latt - The HBA link event handler | |
1829 | * @phba: pointer to lpfc hba data structure. | |
1830 | * | |
1831 | * This routine is invoked from the worker thread to handle a HBA host | |
1832 | * attention link event. | |
1833 | **/ | |
1834 | void | |
1835 | lpfc_handle_latt(struct lpfc_hba *phba) | |
1836 | { | |
1837 | struct lpfc_vport *vport = phba->pport; | |
1838 | struct lpfc_sli *psli = &phba->sli; | |
1839 | LPFC_MBOXQ_t *pmb; | |
1840 | volatile uint32_t control; | |
1841 | struct lpfc_dmabuf *mp; | |
1842 | int rc = 0; | |
1843 | ||
1844 | pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1845 | if (!pmb) { | |
1846 | rc = 1; | |
1847 | goto lpfc_handle_latt_err_exit; | |
1848 | } | |
1849 | ||
1850 | mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
1851 | if (!mp) { | |
1852 | rc = 2; | |
1853 | goto lpfc_handle_latt_free_pmb; | |
1854 | } | |
1855 | ||
1856 | mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); | |
1857 | if (!mp->virt) { | |
1858 | rc = 3; | |
1859 | goto lpfc_handle_latt_free_mp; | |
1860 | } | |
1861 | ||
1862 | /* Cleanup any outstanding ELS commands */ | |
1863 | lpfc_els_flush_all_cmd(phba); | |
1864 | ||
1865 | psli->slistat.link_event++; | |
1866 | lpfc_read_topology(phba, pmb, mp); | |
1867 | pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; | |
1868 | pmb->vport = vport; | |
1869 | /* Block ELS IOCBs until we have processed this mbox command */ | |
1870 | phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; | |
1871 | rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); | |
1872 | if (rc == MBX_NOT_FINISHED) { | |
1873 | rc = 4; | |
1874 | goto lpfc_handle_latt_free_mbuf; | |
1875 | } | |
1876 | ||
1877 | /* Clear Link Attention in HA REG */ | |
1878 | spin_lock_irq(&phba->hbalock); | |
1879 | writel(HA_LATT, phba->HAregaddr); | |
1880 | readl(phba->HAregaddr); /* flush */ | |
1881 | spin_unlock_irq(&phba->hbalock); | |
1882 | ||
1883 | return; | |
1884 | ||
1885 | lpfc_handle_latt_free_mbuf: | |
1886 | phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; | |
1887 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
1888 | lpfc_handle_latt_free_mp: | |
1889 | kfree(mp); | |
1890 | lpfc_handle_latt_free_pmb: | |
1891 | mempool_free(pmb, phba->mbox_mem_pool); | |
1892 | lpfc_handle_latt_err_exit: | |
1893 | /* Enable Link attention interrupts */ | |
1894 | spin_lock_irq(&phba->hbalock); | |
1895 | psli->sli_flag |= LPFC_PROCESS_LA; | |
1896 | control = readl(phba->HCregaddr); | |
1897 | control |= HC_LAINT_ENA; | |
1898 | writel(control, phba->HCregaddr); | |
1899 | readl(phba->HCregaddr); /* flush */ | |
1900 | ||
1901 | /* Clear Link Attention in HA REG */ | |
1902 | writel(HA_LATT, phba->HAregaddr); | |
1903 | readl(phba->HAregaddr); /* flush */ | |
1904 | spin_unlock_irq(&phba->hbalock); | |
1905 | lpfc_linkdown(phba); | |
1906 | phba->link_state = LPFC_HBA_ERROR; | |
1907 | ||
1908 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
1909 | "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); | |
1910 | ||
1911 | return; | |
1912 | } | |
1913 | ||
1914 | /** | |
1915 | * lpfc_parse_vpd - Parse VPD (Vital Product Data) | |
1916 | * @phba: pointer to lpfc hba data structure. | |
1917 | * @vpd: pointer to the vital product data. | |
1918 | * @len: length of the vital product data in bytes. | |
1919 | * | |
1920 | * This routine parses the Vital Product Data (VPD). The VPD is treated as | |
1921 | * an array of characters. In this routine, the ModelName, ProgramType, and | |
1922 | * ModelDesc, etc. fields of the phba data structure will be populated. | |
1923 | * | |
1924 | * Return codes | |
1925 | * 0 - pointer to the VPD passed in is NULL | |
1926 | * 1 - success | |
1927 | **/ | |
1928 | int | |
1929 | lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) | |
1930 | { | |
1931 | uint8_t lenlo, lenhi; | |
1932 | int Length; | |
1933 | int i, j; | |
1934 | int finished = 0; | |
1935 | int index = 0; | |
1936 | ||
1937 | if (!vpd) | |
1938 | return 0; | |
1939 | ||
1940 | /* Vital Product */ | |
1941 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
1942 | "0455 Vital Product Data: x%x x%x x%x x%x\n", | |
1943 | (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], | |
1944 | (uint32_t) vpd[3]); | |
1945 | while (!finished && (index < (len - 4))) { | |
1946 | switch (vpd[index]) { | |
1947 | case 0x82: | |
1948 | case 0x91: | |
1949 | index += 1; | |
1950 | lenlo = vpd[index]; | |
1951 | index += 1; | |
1952 | lenhi = vpd[index]; | |
1953 | index += 1; | |
1954 | i = ((((unsigned short)lenhi) << 8) + lenlo); | |
1955 | index += i; | |
1956 | break; | |
1957 | case 0x90: | |
1958 | index += 1; | |
1959 | lenlo = vpd[index]; | |
1960 | index += 1; | |
1961 | lenhi = vpd[index]; | |
1962 | index += 1; | |
1963 | Length = ((((unsigned short)lenhi) << 8) + lenlo); | |
1964 | if (Length > len - index) | |
1965 | Length = len - index; | |
1966 | while (Length > 0) { | |
1967 | /* Look for Serial Number */ | |
1968 | if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { | |
1969 | index += 2; | |
1970 | i = vpd[index]; | |
1971 | index += 1; | |
1972 | j = 0; | |
1973 | Length -= (3+i); | |
1974 | while(i--) { | |
1975 | phba->SerialNumber[j++] = vpd[index++]; | |
1976 | if (j == 31) | |
1977 | break; | |
1978 | } | |
1979 | phba->SerialNumber[j] = 0; | |
1980 | continue; | |
1981 | } | |
1982 | else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { | |
1983 | phba->vpd_flag |= VPD_MODEL_DESC; | |
1984 | index += 2; | |
1985 | i = vpd[index]; | |
1986 | index += 1; | |
1987 | j = 0; | |
1988 | Length -= (3+i); | |
1989 | while(i--) { | |
1990 | phba->ModelDesc[j++] = vpd[index++]; | |
1991 | if (j == 255) | |
1992 | break; | |
1993 | } | |
1994 | phba->ModelDesc[j] = 0; | |
1995 | continue; | |
1996 | } | |
1997 | else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { | |
1998 | phba->vpd_flag |= VPD_MODEL_NAME; | |
1999 | index += 2; | |
2000 | i = vpd[index]; | |
2001 | index += 1; | |
2002 | j = 0; | |
2003 | Length -= (3+i); | |
2004 | while(i--) { | |
2005 | phba->ModelName[j++] = vpd[index++]; | |
2006 | if (j == 79) | |
2007 | break; | |
2008 | } | |
2009 | phba->ModelName[j] = 0; | |
2010 | continue; | |
2011 | } | |
2012 | else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { | |
2013 | phba->vpd_flag |= VPD_PROGRAM_TYPE; | |
2014 | index += 2; | |
2015 | i = vpd[index]; | |
2016 | index += 1; | |
2017 | j = 0; | |
2018 | Length -= (3+i); | |
2019 | while(i--) { | |
2020 | phba->ProgramType[j++] = vpd[index++]; | |
2021 | if (j == 255) | |
2022 | break; | |
2023 | } | |
2024 | phba->ProgramType[j] = 0; | |
2025 | continue; | |
2026 | } | |
2027 | else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { | |
2028 | phba->vpd_flag |= VPD_PORT; | |
2029 | index += 2; | |
2030 | i = vpd[index]; | |
2031 | index += 1; | |
2032 | j = 0; | |
2033 | Length -= (3+i); | |
2034 | while(i--) { | |
2035 | if ((phba->sli_rev == LPFC_SLI_REV4) && | |
2036 | (phba->sli4_hba.pport_name_sta == | |
2037 | LPFC_SLI4_PPNAME_GET)) { | |
2038 | j++; | |
2039 | index++; | |
2040 | } else | |
2041 | phba->Port[j++] = vpd[index++]; | |
2042 | if (j == 19) | |
2043 | break; | |
2044 | } | |
2045 | if ((phba->sli_rev != LPFC_SLI_REV4) || | |
2046 | (phba->sli4_hba.pport_name_sta == | |
2047 | LPFC_SLI4_PPNAME_NON)) | |
2048 | phba->Port[j] = 0; | |
2049 | continue; | |
2050 | } | |
2051 | else { | |
2052 | index += 2; | |
2053 | i = vpd[index]; | |
2054 | index += 1; | |
2055 | index += i; | |
2056 | Length -= (3 + i); | |
2057 | } | |
2058 | } | |
2059 | finished = 0; | |
2060 | break; | |
2061 | case 0x78: | |
2062 | finished = 1; | |
2063 | break; | |
2064 | default: | |
2065 | index ++; | |
2066 | break; | |
2067 | } | |
2068 | } | |
2069 | ||
2070 | return(1); | |
2071 | } | |
2072 | ||
2073 | /** | |
2074 | * lpfc_get_hba_model_desc - Retrieve HBA device model name and description | |
2075 | * @phba: pointer to lpfc hba data structure. | |
2076 | * @mdp: pointer to the data structure to hold the derived model name. | |
2077 | * @descp: pointer to the data structure to hold the derived description. | |
2078 | * | |
2079 | * This routine retrieves HBA's description based on its registered PCI device | |
2080 | * ID. The @descp passed into this function points to an array of 256 chars. It | |
2081 | * shall be returned with the model name, maximum speed, and the host bus type. | |
2082 | * The @mdp passed into this function points to an array of 80 chars. When the | |
2083 | * function returns, the @mdp will be filled with the model name. | |
2084 | **/ | |
2085 | static void | |
2086 | lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) | |
2087 | { | |
2088 | lpfc_vpd_t *vp; | |
2089 | uint16_t dev_id = phba->pcidev->device; | |
2090 | int max_speed; | |
2091 | int GE = 0; | |
2092 | int oneConnect = 0; /* default is not a oneConnect */ | |
2093 | struct { | |
2094 | char *name; | |
2095 | char *bus; | |
2096 | char *function; | |
2097 | } m = {"<Unknown>", "", ""}; | |
2098 | ||
2099 | if (mdp && mdp[0] != '\0' | |
2100 | && descp && descp[0] != '\0') | |
2101 | return; | |
2102 | ||
2103 | if (phba->lmt & LMT_32Gb) | |
2104 | max_speed = 32; | |
2105 | else if (phba->lmt & LMT_16Gb) | |
2106 | max_speed = 16; | |
2107 | else if (phba->lmt & LMT_10Gb) | |
2108 | max_speed = 10; | |
2109 | else if (phba->lmt & LMT_8Gb) | |
2110 | max_speed = 8; | |
2111 | else if (phba->lmt & LMT_4Gb) | |
2112 | max_speed = 4; | |
2113 | else if (phba->lmt & LMT_2Gb) | |
2114 | max_speed = 2; | |
2115 | else if (phba->lmt & LMT_1Gb) | |
2116 | max_speed = 1; | |
2117 | else | |
2118 | max_speed = 0; | |
2119 | ||
2120 | vp = &phba->vpd; | |
2121 | ||
2122 | switch (dev_id) { | |
2123 | case PCI_DEVICE_ID_FIREFLY: | |
2124 | m = (typeof(m)){"LP6000", "PCI", | |
2125 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2126 | break; | |
2127 | case PCI_DEVICE_ID_SUPERFLY: | |
2128 | if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) | |
2129 | m = (typeof(m)){"LP7000", "PCI", ""}; | |
2130 | else | |
2131 | m = (typeof(m)){"LP7000E", "PCI", ""}; | |
2132 | m.function = "Obsolete, Unsupported Fibre Channel Adapter"; | |
2133 | break; | |
2134 | case PCI_DEVICE_ID_DRAGONFLY: | |
2135 | m = (typeof(m)){"LP8000", "PCI", | |
2136 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2137 | break; | |
2138 | case PCI_DEVICE_ID_CENTAUR: | |
2139 | if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) | |
2140 | m = (typeof(m)){"LP9002", "PCI", ""}; | |
2141 | else | |
2142 | m = (typeof(m)){"LP9000", "PCI", ""}; | |
2143 | m.function = "Obsolete, Unsupported Fibre Channel Adapter"; | |
2144 | break; | |
2145 | case PCI_DEVICE_ID_RFLY: | |
2146 | m = (typeof(m)){"LP952", "PCI", | |
2147 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2148 | break; | |
2149 | case PCI_DEVICE_ID_PEGASUS: | |
2150 | m = (typeof(m)){"LP9802", "PCI-X", | |
2151 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2152 | break; | |
2153 | case PCI_DEVICE_ID_THOR: | |
2154 | m = (typeof(m)){"LP10000", "PCI-X", | |
2155 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2156 | break; | |
2157 | case PCI_DEVICE_ID_VIPER: | |
2158 | m = (typeof(m)){"LPX1000", "PCI-X", | |
2159 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2160 | break; | |
2161 | case PCI_DEVICE_ID_PFLY: | |
2162 | m = (typeof(m)){"LP982", "PCI-X", | |
2163 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2164 | break; | |
2165 | case PCI_DEVICE_ID_TFLY: | |
2166 | m = (typeof(m)){"LP1050", "PCI-X", | |
2167 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2168 | break; | |
2169 | case PCI_DEVICE_ID_HELIOS: | |
2170 | m = (typeof(m)){"LP11000", "PCI-X2", | |
2171 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2172 | break; | |
2173 | case PCI_DEVICE_ID_HELIOS_SCSP: | |
2174 | m = (typeof(m)){"LP11000-SP", "PCI-X2", | |
2175 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2176 | break; | |
2177 | case PCI_DEVICE_ID_HELIOS_DCSP: | |
2178 | m = (typeof(m)){"LP11002-SP", "PCI-X2", | |
2179 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2180 | break; | |
2181 | case PCI_DEVICE_ID_NEPTUNE: | |
2182 | m = (typeof(m)){"LPe1000", "PCIe", | |
2183 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2184 | break; | |
2185 | case PCI_DEVICE_ID_NEPTUNE_SCSP: | |
2186 | m = (typeof(m)){"LPe1000-SP", "PCIe", | |
2187 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2188 | break; | |
2189 | case PCI_DEVICE_ID_NEPTUNE_DCSP: | |
2190 | m = (typeof(m)){"LPe1002-SP", "PCIe", | |
2191 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2192 | break; | |
2193 | case PCI_DEVICE_ID_BMID: | |
2194 | m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; | |
2195 | break; | |
2196 | case PCI_DEVICE_ID_BSMB: | |
2197 | m = (typeof(m)){"LP111", "PCI-X2", | |
2198 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2199 | break; | |
2200 | case PCI_DEVICE_ID_ZEPHYR: | |
2201 | m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; | |
2202 | break; | |
2203 | case PCI_DEVICE_ID_ZEPHYR_SCSP: | |
2204 | m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; | |
2205 | break; | |
2206 | case PCI_DEVICE_ID_ZEPHYR_DCSP: | |
2207 | m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; | |
2208 | GE = 1; | |
2209 | break; | |
2210 | case PCI_DEVICE_ID_ZMID: | |
2211 | m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; | |
2212 | break; | |
2213 | case PCI_DEVICE_ID_ZSMB: | |
2214 | m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; | |
2215 | break; | |
2216 | case PCI_DEVICE_ID_LP101: | |
2217 | m = (typeof(m)){"LP101", "PCI-X", | |
2218 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2219 | break; | |
2220 | case PCI_DEVICE_ID_LP10000S: | |
2221 | m = (typeof(m)){"LP10000-S", "PCI", | |
2222 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2223 | break; | |
2224 | case PCI_DEVICE_ID_LP11000S: | |
2225 | m = (typeof(m)){"LP11000-S", "PCI-X2", | |
2226 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2227 | break; | |
2228 | case PCI_DEVICE_ID_LPE11000S: | |
2229 | m = (typeof(m)){"LPe11000-S", "PCIe", | |
2230 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2231 | break; | |
2232 | case PCI_DEVICE_ID_SAT: | |
2233 | m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; | |
2234 | break; | |
2235 | case PCI_DEVICE_ID_SAT_MID: | |
2236 | m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; | |
2237 | break; | |
2238 | case PCI_DEVICE_ID_SAT_SMB: | |
2239 | m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; | |
2240 | break; | |
2241 | case PCI_DEVICE_ID_SAT_DCSP: | |
2242 | m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; | |
2243 | break; | |
2244 | case PCI_DEVICE_ID_SAT_SCSP: | |
2245 | m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; | |
2246 | break; | |
2247 | case PCI_DEVICE_ID_SAT_S: | |
2248 | m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; | |
2249 | break; | |
2250 | case PCI_DEVICE_ID_HORNET: | |
2251 | m = (typeof(m)){"LP21000", "PCIe", | |
2252 | "Obsolete, Unsupported FCoE Adapter"}; | |
2253 | GE = 1; | |
2254 | break; | |
2255 | case PCI_DEVICE_ID_PROTEUS_VF: | |
2256 | m = (typeof(m)){"LPev12000", "PCIe IOV", | |
2257 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2258 | break; | |
2259 | case PCI_DEVICE_ID_PROTEUS_PF: | |
2260 | m = (typeof(m)){"LPev12000", "PCIe IOV", | |
2261 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2262 | break; | |
2263 | case PCI_DEVICE_ID_PROTEUS_S: | |
2264 | m = (typeof(m)){"LPemv12002-S", "PCIe IOV", | |
2265 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2266 | break; | |
2267 | case PCI_DEVICE_ID_TIGERSHARK: | |
2268 | oneConnect = 1; | |
2269 | m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; | |
2270 | break; | |
2271 | case PCI_DEVICE_ID_TOMCAT: | |
2272 | oneConnect = 1; | |
2273 | m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; | |
2274 | break; | |
2275 | case PCI_DEVICE_ID_FALCON: | |
2276 | m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", | |
2277 | "EmulexSecure Fibre"}; | |
2278 | break; | |
2279 | case PCI_DEVICE_ID_BALIUS: | |
2280 | m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", | |
2281 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2282 | break; | |
2283 | case PCI_DEVICE_ID_LANCER_FC: | |
2284 | m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; | |
2285 | break; | |
2286 | case PCI_DEVICE_ID_LANCER_FC_VF: | |
2287 | m = (typeof(m)){"LPe16000", "PCIe", | |
2288 | "Obsolete, Unsupported Fibre Channel Adapter"}; | |
2289 | break; | |
2290 | case PCI_DEVICE_ID_LANCER_FCOE: | |
2291 | oneConnect = 1; | |
2292 | m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; | |
2293 | break; | |
2294 | case PCI_DEVICE_ID_LANCER_FCOE_VF: | |
2295 | oneConnect = 1; | |
2296 | m = (typeof(m)){"OCe15100", "PCIe", | |
2297 | "Obsolete, Unsupported FCoE"}; | |
2298 | break; | |
2299 | case PCI_DEVICE_ID_LANCER_G6_FC: | |
2300 | m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"}; | |
2301 | break; | |
2302 | case PCI_DEVICE_ID_SKYHAWK: | |
2303 | case PCI_DEVICE_ID_SKYHAWK_VF: | |
2304 | oneConnect = 1; | |
2305 | m = (typeof(m)){"OCe14000", "PCIe", "FCoE"}; | |
2306 | break; | |
2307 | default: | |
2308 | m = (typeof(m)){"Unknown", "", ""}; | |
2309 | break; | |
2310 | } | |
2311 | ||
2312 | if (mdp && mdp[0] == '\0') | |
2313 | snprintf(mdp, 79,"%s", m.name); | |
2314 | /* | |
2315 | * oneConnect hba requires special processing, they are all initiators | |
2316 | * and we put the port number on the end | |
2317 | */ | |
2318 | if (descp && descp[0] == '\0') { | |
2319 | if (oneConnect) | |
2320 | snprintf(descp, 255, | |
2321 | "Emulex OneConnect %s, %s Initiator %s", | |
2322 | m.name, m.function, | |
2323 | phba->Port); | |
2324 | else if (max_speed == 0) | |
2325 | snprintf(descp, 255, | |
2326 | "Emulex %s %s %s", | |
2327 | m.name, m.bus, m.function); | |
2328 | else | |
2329 | snprintf(descp, 255, | |
2330 | "Emulex %s %d%s %s %s", | |
2331 | m.name, max_speed, (GE) ? "GE" : "Gb", | |
2332 | m.bus, m.function); | |
2333 | } | |
2334 | } | |
2335 | ||
2336 | /** | |
2337 | * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring | |
2338 | * @phba: pointer to lpfc hba data structure. | |
2339 | * @pring: pointer to a IOCB ring. | |
2340 | * @cnt: the number of IOCBs to be posted to the IOCB ring. | |
2341 | * | |
2342 | * This routine posts a given number of IOCBs with the associated DMA buffer | |
2343 | * descriptors specified by the cnt argument to the given IOCB ring. | |
2344 | * | |
2345 | * Return codes | |
2346 | * The number of IOCBs NOT able to be posted to the IOCB ring. | |
2347 | **/ | |
2348 | int | |
2349 | lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) | |
2350 | { | |
2351 | IOCB_t *icmd; | |
2352 | struct lpfc_iocbq *iocb; | |
2353 | struct lpfc_dmabuf *mp1, *mp2; | |
2354 | ||
2355 | cnt += pring->missbufcnt; | |
2356 | ||
2357 | /* While there are buffers to post */ | |
2358 | while (cnt > 0) { | |
2359 | /* Allocate buffer for command iocb */ | |
2360 | iocb = lpfc_sli_get_iocbq(phba); | |
2361 | if (iocb == NULL) { | |
2362 | pring->missbufcnt = cnt; | |
2363 | return cnt; | |
2364 | } | |
2365 | icmd = &iocb->iocb; | |
2366 | ||
2367 | /* 2 buffers can be posted per command */ | |
2368 | /* Allocate buffer to post */ | |
2369 | mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); | |
2370 | if (mp1) | |
2371 | mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); | |
2372 | if (!mp1 || !mp1->virt) { | |
2373 | kfree(mp1); | |
2374 | lpfc_sli_release_iocbq(phba, iocb); | |
2375 | pring->missbufcnt = cnt; | |
2376 | return cnt; | |
2377 | } | |
2378 | ||
2379 | INIT_LIST_HEAD(&mp1->list); | |
2380 | /* Allocate buffer to post */ | |
2381 | if (cnt > 1) { | |
2382 | mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); | |
2383 | if (mp2) | |
2384 | mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, | |
2385 | &mp2->phys); | |
2386 | if (!mp2 || !mp2->virt) { | |
2387 | kfree(mp2); | |
2388 | lpfc_mbuf_free(phba, mp1->virt, mp1->phys); | |
2389 | kfree(mp1); | |
2390 | lpfc_sli_release_iocbq(phba, iocb); | |
2391 | pring->missbufcnt = cnt; | |
2392 | return cnt; | |
2393 | } | |
2394 | ||
2395 | INIT_LIST_HEAD(&mp2->list); | |
2396 | } else { | |
2397 | mp2 = NULL; | |
2398 | } | |
2399 | ||
2400 | icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); | |
2401 | icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); | |
2402 | icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; | |
2403 | icmd->ulpBdeCount = 1; | |
2404 | cnt--; | |
2405 | if (mp2) { | |
2406 | icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); | |
2407 | icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); | |
2408 | icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; | |
2409 | cnt--; | |
2410 | icmd->ulpBdeCount = 2; | |
2411 | } | |
2412 | ||
2413 | icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; | |
2414 | icmd->ulpLe = 1; | |
2415 | ||
2416 | if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == | |
2417 | IOCB_ERROR) { | |
2418 | lpfc_mbuf_free(phba, mp1->virt, mp1->phys); | |
2419 | kfree(mp1); | |
2420 | cnt++; | |
2421 | if (mp2) { | |
2422 | lpfc_mbuf_free(phba, mp2->virt, mp2->phys); | |
2423 | kfree(mp2); | |
2424 | cnt++; | |
2425 | } | |
2426 | lpfc_sli_release_iocbq(phba, iocb); | |
2427 | pring->missbufcnt = cnt; | |
2428 | return cnt; | |
2429 | } | |
2430 | lpfc_sli_ringpostbuf_put(phba, pring, mp1); | |
2431 | if (mp2) | |
2432 | lpfc_sli_ringpostbuf_put(phba, pring, mp2); | |
2433 | } | |
2434 | pring->missbufcnt = 0; | |
2435 | return 0; | |
2436 | } | |
2437 | ||
2438 | /** | |
2439 | * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring | |
2440 | * @phba: pointer to lpfc hba data structure. | |
2441 | * | |
2442 | * This routine posts initial receive IOCB buffers to the ELS ring. The | |
2443 | * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is | |
2444 | * set to 64 IOCBs. | |
2445 | * | |
2446 | * Return codes | |
2447 | * 0 - success (currently always success) | |
2448 | **/ | |
2449 | static int | |
2450 | lpfc_post_rcv_buf(struct lpfc_hba *phba) | |
2451 | { | |
2452 | struct lpfc_sli *psli = &phba->sli; | |
2453 | ||
2454 | /* Ring 0, ELS / CT buffers */ | |
2455 | lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); | |
2456 | /* Ring 2 - FCP no buffers needed */ | |
2457 | ||
2458 | return 0; | |
2459 | } | |
2460 | ||
2461 | #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) | |
2462 | ||
2463 | /** | |
2464 | * lpfc_sha_init - Set up initial array of hash table entries | |
2465 | * @HashResultPointer: pointer to an array as hash table. | |
2466 | * | |
2467 | * This routine sets up the initial values to the array of hash table entries | |
2468 | * for the LC HBAs. | |
2469 | **/ | |
2470 | static void | |
2471 | lpfc_sha_init(uint32_t * HashResultPointer) | |
2472 | { | |
2473 | HashResultPointer[0] = 0x67452301; | |
2474 | HashResultPointer[1] = 0xEFCDAB89; | |
2475 | HashResultPointer[2] = 0x98BADCFE; | |
2476 | HashResultPointer[3] = 0x10325476; | |
2477 | HashResultPointer[4] = 0xC3D2E1F0; | |
2478 | } | |
2479 | ||
2480 | /** | |
2481 | * lpfc_sha_iterate - Iterate initial hash table with the working hash table | |
2482 | * @HashResultPointer: pointer to an initial/result hash table. | |
2483 | * @HashWorkingPointer: pointer to an working hash table. | |
2484 | * | |
2485 | * This routine iterates an initial hash table pointed by @HashResultPointer | |
2486 | * with the values from the working hash table pointeed by @HashWorkingPointer. | |
2487 | * The results are putting back to the initial hash table, returned through | |
2488 | * the @HashResultPointer as the result hash table. | |
2489 | **/ | |
2490 | static void | |
2491 | lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) | |
2492 | { | |
2493 | int t; | |
2494 | uint32_t TEMP; | |
2495 | uint32_t A, B, C, D, E; | |
2496 | t = 16; | |
2497 | do { | |
2498 | HashWorkingPointer[t] = | |
2499 | S(1, | |
2500 | HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - | |
2501 | 8] ^ | |
2502 | HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); | |
2503 | } while (++t <= 79); | |
2504 | t = 0; | |
2505 | A = HashResultPointer[0]; | |
2506 | B = HashResultPointer[1]; | |
2507 | C = HashResultPointer[2]; | |
2508 | D = HashResultPointer[3]; | |
2509 | E = HashResultPointer[4]; | |
2510 | ||
2511 | do { | |
2512 | if (t < 20) { | |
2513 | TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; | |
2514 | } else if (t < 40) { | |
2515 | TEMP = (B ^ C ^ D) + 0x6ED9EBA1; | |
2516 | } else if (t < 60) { | |
2517 | TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; | |
2518 | } else { | |
2519 | TEMP = (B ^ C ^ D) + 0xCA62C1D6; | |
2520 | } | |
2521 | TEMP += S(5, A) + E + HashWorkingPointer[t]; | |
2522 | E = D; | |
2523 | D = C; | |
2524 | C = S(30, B); | |
2525 | B = A; | |
2526 | A = TEMP; | |
2527 | } while (++t <= 79); | |
2528 | ||
2529 | HashResultPointer[0] += A; | |
2530 | HashResultPointer[1] += B; | |
2531 | HashResultPointer[2] += C; | |
2532 | HashResultPointer[3] += D; | |
2533 | HashResultPointer[4] += E; | |
2534 | ||
2535 | } | |
2536 | ||
2537 | /** | |
2538 | * lpfc_challenge_key - Create challenge key based on WWPN of the HBA | |
2539 | * @RandomChallenge: pointer to the entry of host challenge random number array. | |
2540 | * @HashWorking: pointer to the entry of the working hash array. | |
2541 | * | |
2542 | * This routine calculates the working hash array referred by @HashWorking | |
2543 | * from the challenge random numbers associated with the host, referred by | |
2544 | * @RandomChallenge. The result is put into the entry of the working hash | |
2545 | * array and returned by reference through @HashWorking. | |
2546 | **/ | |
2547 | static void | |
2548 | lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) | |
2549 | { | |
2550 | *HashWorking = (*RandomChallenge ^ *HashWorking); | |
2551 | } | |
2552 | ||
2553 | /** | |
2554 | * lpfc_hba_init - Perform special handling for LC HBA initialization | |
2555 | * @phba: pointer to lpfc hba data structure. | |
2556 | * @hbainit: pointer to an array of unsigned 32-bit integers. | |
2557 | * | |
2558 | * This routine performs the special handling for LC HBA initialization. | |
2559 | **/ | |
2560 | void | |
2561 | lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) | |
2562 | { | |
2563 | int t; | |
2564 | uint32_t *HashWorking; | |
2565 | uint32_t *pwwnn = (uint32_t *) phba->wwnn; | |
2566 | ||
2567 | HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); | |
2568 | if (!HashWorking) | |
2569 | return; | |
2570 | ||
2571 | HashWorking[0] = HashWorking[78] = *pwwnn++; | |
2572 | HashWorking[1] = HashWorking[79] = *pwwnn; | |
2573 | ||
2574 | for (t = 0; t < 7; t++) | |
2575 | lpfc_challenge_key(phba->RandomData + t, HashWorking + t); | |
2576 | ||
2577 | lpfc_sha_init(hbainit); | |
2578 | lpfc_sha_iterate(hbainit, HashWorking); | |
2579 | kfree(HashWorking); | |
2580 | } | |
2581 | ||
2582 | /** | |
2583 | * lpfc_cleanup - Performs vport cleanups before deleting a vport | |
2584 | * @vport: pointer to a virtual N_Port data structure. | |
2585 | * | |
2586 | * This routine performs the necessary cleanups before deleting the @vport. | |
2587 | * It invokes the discovery state machine to perform necessary state | |
2588 | * transitions and to release the ndlps associated with the @vport. Note, | |
2589 | * the physical port is treated as @vport 0. | |
2590 | **/ | |
2591 | void | |
2592 | lpfc_cleanup(struct lpfc_vport *vport) | |
2593 | { | |
2594 | struct lpfc_hba *phba = vport->phba; | |
2595 | struct lpfc_nodelist *ndlp, *next_ndlp; | |
2596 | int i = 0; | |
2597 | ||
2598 | if (phba->link_state > LPFC_LINK_DOWN) | |
2599 | lpfc_port_link_failure(vport); | |
2600 | ||
2601 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
2602 | if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2603 | ndlp = lpfc_enable_node(vport, ndlp, | |
2604 | NLP_STE_UNUSED_NODE); | |
2605 | if (!ndlp) | |
2606 | continue; | |
2607 | spin_lock_irq(&phba->ndlp_lock); | |
2608 | NLP_SET_FREE_REQ(ndlp); | |
2609 | spin_unlock_irq(&phba->ndlp_lock); | |
2610 | /* Trigger the release of the ndlp memory */ | |
2611 | lpfc_nlp_put(ndlp); | |
2612 | continue; | |
2613 | } | |
2614 | spin_lock_irq(&phba->ndlp_lock); | |
2615 | if (NLP_CHK_FREE_REQ(ndlp)) { | |
2616 | /* The ndlp should not be in memory free mode already */ | |
2617 | spin_unlock_irq(&phba->ndlp_lock); | |
2618 | continue; | |
2619 | } else | |
2620 | /* Indicate request for freeing ndlp memory */ | |
2621 | NLP_SET_FREE_REQ(ndlp); | |
2622 | spin_unlock_irq(&phba->ndlp_lock); | |
2623 | ||
2624 | if (vport->port_type != LPFC_PHYSICAL_PORT && | |
2625 | ndlp->nlp_DID == Fabric_DID) { | |
2626 | /* Just free up ndlp with Fabric_DID for vports */ | |
2627 | lpfc_nlp_put(ndlp); | |
2628 | continue; | |
2629 | } | |
2630 | ||
2631 | /* take care of nodes in unused state before the state | |
2632 | * machine taking action. | |
2633 | */ | |
2634 | if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { | |
2635 | lpfc_nlp_put(ndlp); | |
2636 | continue; | |
2637 | } | |
2638 | ||
2639 | if (ndlp->nlp_type & NLP_FABRIC) | |
2640 | lpfc_disc_state_machine(vport, ndlp, NULL, | |
2641 | NLP_EVT_DEVICE_RECOVERY); | |
2642 | ||
2643 | lpfc_disc_state_machine(vport, ndlp, NULL, | |
2644 | NLP_EVT_DEVICE_RM); | |
2645 | } | |
2646 | ||
2647 | /* At this point, ALL ndlp's should be gone | |
2648 | * because of the previous NLP_EVT_DEVICE_RM. | |
2649 | * Lets wait for this to happen, if needed. | |
2650 | */ | |
2651 | while (!list_empty(&vport->fc_nodes)) { | |
2652 | if (i++ > 3000) { | |
2653 | lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, | |
2654 | "0233 Nodelist not empty\n"); | |
2655 | list_for_each_entry_safe(ndlp, next_ndlp, | |
2656 | &vport->fc_nodes, nlp_listp) { | |
2657 | lpfc_printf_vlog(ndlp->vport, KERN_ERR, | |
2658 | LOG_NODE, | |
2659 | "0282 did:x%x ndlp:x%p " | |
2660 | "usgmap:x%x refcnt:%d\n", | |
2661 | ndlp->nlp_DID, (void *)ndlp, | |
2662 | ndlp->nlp_usg_map, | |
2663 | kref_read(&ndlp->kref)); | |
2664 | } | |
2665 | break; | |
2666 | } | |
2667 | ||
2668 | /* Wait for any activity on ndlps to settle */ | |
2669 | msleep(10); | |
2670 | } | |
2671 | lpfc_cleanup_vports_rrqs(vport, NULL); | |
2672 | } | |
2673 | ||
2674 | /** | |
2675 | * lpfc_stop_vport_timers - Stop all the timers associated with a vport | |
2676 | * @vport: pointer to a virtual N_Port data structure. | |
2677 | * | |
2678 | * This routine stops all the timers associated with a @vport. This function | |
2679 | * is invoked before disabling or deleting a @vport. Note that the physical | |
2680 | * port is treated as @vport 0. | |
2681 | **/ | |
2682 | void | |
2683 | lpfc_stop_vport_timers(struct lpfc_vport *vport) | |
2684 | { | |
2685 | del_timer_sync(&vport->els_tmofunc); | |
2686 | del_timer_sync(&vport->delayed_disc_tmo); | |
2687 | lpfc_can_disctmo(vport); | |
2688 | return; | |
2689 | } | |
2690 | ||
2691 | /** | |
2692 | * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer | |
2693 | * @phba: pointer to lpfc hba data structure. | |
2694 | * | |
2695 | * This routine stops the SLI4 FCF rediscover wait timer if it's on. The | |
2696 | * caller of this routine should already hold the host lock. | |
2697 | **/ | |
2698 | void | |
2699 | __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) | |
2700 | { | |
2701 | /* Clear pending FCF rediscovery wait flag */ | |
2702 | phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; | |
2703 | ||
2704 | /* Now, try to stop the timer */ | |
2705 | del_timer(&phba->fcf.redisc_wait); | |
2706 | } | |
2707 | ||
2708 | /** | |
2709 | * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer | |
2710 | * @phba: pointer to lpfc hba data structure. | |
2711 | * | |
2712 | * This routine stops the SLI4 FCF rediscover wait timer if it's on. It | |
2713 | * checks whether the FCF rediscovery wait timer is pending with the host | |
2714 | * lock held before proceeding with disabling the timer and clearing the | |
2715 | * wait timer pendig flag. | |
2716 | **/ | |
2717 | void | |
2718 | lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) | |
2719 | { | |
2720 | spin_lock_irq(&phba->hbalock); | |
2721 | if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { | |
2722 | /* FCF rediscovery timer already fired or stopped */ | |
2723 | spin_unlock_irq(&phba->hbalock); | |
2724 | return; | |
2725 | } | |
2726 | __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); | |
2727 | /* Clear failover in progress flags */ | |
2728 | phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); | |
2729 | spin_unlock_irq(&phba->hbalock); | |
2730 | } | |
2731 | ||
2732 | /** | |
2733 | * lpfc_stop_hba_timers - Stop all the timers associated with an HBA | |
2734 | * @phba: pointer to lpfc hba data structure. | |
2735 | * | |
2736 | * This routine stops all the timers associated with a HBA. This function is | |
2737 | * invoked before either putting a HBA offline or unloading the driver. | |
2738 | **/ | |
2739 | void | |
2740 | lpfc_stop_hba_timers(struct lpfc_hba *phba) | |
2741 | { | |
2742 | lpfc_stop_vport_timers(phba->pport); | |
2743 | del_timer_sync(&phba->sli.mbox_tmo); | |
2744 | del_timer_sync(&phba->fabric_block_timer); | |
2745 | del_timer_sync(&phba->eratt_poll); | |
2746 | del_timer_sync(&phba->hb_tmofunc); | |
2747 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
2748 | del_timer_sync(&phba->rrq_tmr); | |
2749 | phba->hba_flag &= ~HBA_RRQ_ACTIVE; | |
2750 | } | |
2751 | phba->hb_outstanding = 0; | |
2752 | ||
2753 | switch (phba->pci_dev_grp) { | |
2754 | case LPFC_PCI_DEV_LP: | |
2755 | /* Stop any LightPulse device specific driver timers */ | |
2756 | del_timer_sync(&phba->fcp_poll_timer); | |
2757 | break; | |
2758 | case LPFC_PCI_DEV_OC: | |
2759 | /* Stop any OneConnect device sepcific driver timers */ | |
2760 | lpfc_sli4_stop_fcf_redisc_wait_timer(phba); | |
2761 | break; | |
2762 | default: | |
2763 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
2764 | "0297 Invalid device group (x%x)\n", | |
2765 | phba->pci_dev_grp); | |
2766 | break; | |
2767 | } | |
2768 | return; | |
2769 | } | |
2770 | ||
2771 | /** | |
2772 | * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked | |
2773 | * @phba: pointer to lpfc hba data structure. | |
2774 | * | |
2775 | * This routine marks a HBA's management interface as blocked. Once the HBA's | |
2776 | * management interface is marked as blocked, all the user space access to | |
2777 | * the HBA, whether they are from sysfs interface or libdfc interface will | |
2778 | * all be blocked. The HBA is set to block the management interface when the | |
2779 | * driver prepares the HBA interface for online or offline. | |
2780 | **/ | |
2781 | static void | |
2782 | lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action) | |
2783 | { | |
2784 | unsigned long iflag; | |
2785 | uint8_t actcmd = MBX_HEARTBEAT; | |
2786 | unsigned long timeout; | |
2787 | ||
2788 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2789 | phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; | |
2790 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2791 | if (mbx_action == LPFC_MBX_NO_WAIT) | |
2792 | return; | |
2793 | timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; | |
2794 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2795 | if (phba->sli.mbox_active) { | |
2796 | actcmd = phba->sli.mbox_active->u.mb.mbxCommand; | |
2797 | /* Determine how long we might wait for the active mailbox | |
2798 | * command to be gracefully completed by firmware. | |
2799 | */ | |
2800 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, | |
2801 | phba->sli.mbox_active) * 1000) + jiffies; | |
2802 | } | |
2803 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2804 | ||
2805 | /* Wait for the outstnading mailbox command to complete */ | |
2806 | while (phba->sli.mbox_active) { | |
2807 | /* Check active mailbox complete status every 2ms */ | |
2808 | msleep(2); | |
2809 | if (time_after(jiffies, timeout)) { | |
2810 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2811 | "2813 Mgmt IO is Blocked %x " | |
2812 | "- mbox cmd %x still active\n", | |
2813 | phba->sli.sli_flag, actcmd); | |
2814 | break; | |
2815 | } | |
2816 | } | |
2817 | } | |
2818 | ||
2819 | /** | |
2820 | * lpfc_sli4_node_prep - Assign RPIs for active nodes. | |
2821 | * @phba: pointer to lpfc hba data structure. | |
2822 | * | |
2823 | * Allocate RPIs for all active remote nodes. This is needed whenever | |
2824 | * an SLI4 adapter is reset and the driver is not unloading. Its purpose | |
2825 | * is to fixup the temporary rpi assignments. | |
2826 | **/ | |
2827 | void | |
2828 | lpfc_sli4_node_prep(struct lpfc_hba *phba) | |
2829 | { | |
2830 | struct lpfc_nodelist *ndlp, *next_ndlp; | |
2831 | struct lpfc_vport **vports; | |
2832 | int i; | |
2833 | ||
2834 | if (phba->sli_rev != LPFC_SLI_REV4) | |
2835 | return; | |
2836 | ||
2837 | vports = lpfc_create_vport_work_array(phba); | |
2838 | if (vports != NULL) { | |
2839 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
2840 | if (vports[i]->load_flag & FC_UNLOADING) | |
2841 | continue; | |
2842 | ||
2843 | list_for_each_entry_safe(ndlp, next_ndlp, | |
2844 | &vports[i]->fc_nodes, | |
2845 | nlp_listp) { | |
2846 | if (NLP_CHK_NODE_ACT(ndlp)) { | |
2847 | ndlp->nlp_rpi = | |
2848 | lpfc_sli4_alloc_rpi(phba); | |
2849 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, | |
2850 | LOG_NODE, | |
2851 | "0009 rpi:%x DID:%x " | |
2852 | "flg:%x map:%x %p\n", | |
2853 | ndlp->nlp_rpi, | |
2854 | ndlp->nlp_DID, | |
2855 | ndlp->nlp_flag, | |
2856 | ndlp->nlp_usg_map, | |
2857 | ndlp); | |
2858 | } | |
2859 | } | |
2860 | } | |
2861 | } | |
2862 | lpfc_destroy_vport_work_array(phba, vports); | |
2863 | } | |
2864 | ||
2865 | /** | |
2866 | * lpfc_online - Initialize and bring a HBA online | |
2867 | * @phba: pointer to lpfc hba data structure. | |
2868 | * | |
2869 | * This routine initializes the HBA and brings a HBA online. During this | |
2870 | * process, the management interface is blocked to prevent user space access | |
2871 | * to the HBA interfering with the driver initialization. | |
2872 | * | |
2873 | * Return codes | |
2874 | * 0 - successful | |
2875 | * 1 - failed | |
2876 | **/ | |
2877 | int | |
2878 | lpfc_online(struct lpfc_hba *phba) | |
2879 | { | |
2880 | struct lpfc_vport *vport; | |
2881 | struct lpfc_vport **vports; | |
2882 | int i; | |
2883 | bool vpis_cleared = false; | |
2884 | ||
2885 | if (!phba) | |
2886 | return 0; | |
2887 | vport = phba->pport; | |
2888 | ||
2889 | if (!(vport->fc_flag & FC_OFFLINE_MODE)) | |
2890 | return 0; | |
2891 | ||
2892 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
2893 | "0458 Bring Adapter online\n"); | |
2894 | ||
2895 | lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); | |
2896 | ||
2897 | if (!lpfc_sli_queue_setup(phba)) { | |
2898 | lpfc_unblock_mgmt_io(phba); | |
2899 | return 1; | |
2900 | } | |
2901 | ||
2902 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
2903 | if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ | |
2904 | lpfc_unblock_mgmt_io(phba); | |
2905 | return 1; | |
2906 | } | |
2907 | spin_lock_irq(&phba->hbalock); | |
2908 | if (!phba->sli4_hba.max_cfg_param.vpi_used) | |
2909 | vpis_cleared = true; | |
2910 | spin_unlock_irq(&phba->hbalock); | |
2911 | } else { | |
2912 | if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ | |
2913 | lpfc_unblock_mgmt_io(phba); | |
2914 | return 1; | |
2915 | } | |
2916 | } | |
2917 | ||
2918 | vports = lpfc_create_vport_work_array(phba); | |
2919 | if (vports != NULL) { | |
2920 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
2921 | struct Scsi_Host *shost; | |
2922 | shost = lpfc_shost_from_vport(vports[i]); | |
2923 | spin_lock_irq(shost->host_lock); | |
2924 | vports[i]->fc_flag &= ~FC_OFFLINE_MODE; | |
2925 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) | |
2926 | vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
2927 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
2928 | vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; | |
2929 | if ((vpis_cleared) && | |
2930 | (vports[i]->port_type != | |
2931 | LPFC_PHYSICAL_PORT)) | |
2932 | vports[i]->vpi = 0; | |
2933 | } | |
2934 | spin_unlock_irq(shost->host_lock); | |
2935 | } | |
2936 | } | |
2937 | lpfc_destroy_vport_work_array(phba, vports); | |
2938 | ||
2939 | lpfc_unblock_mgmt_io(phba); | |
2940 | return 0; | |
2941 | } | |
2942 | ||
2943 | /** | |
2944 | * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked | |
2945 | * @phba: pointer to lpfc hba data structure. | |
2946 | * | |
2947 | * This routine marks a HBA's management interface as not blocked. Once the | |
2948 | * HBA's management interface is marked as not blocked, all the user space | |
2949 | * access to the HBA, whether they are from sysfs interface or libdfc | |
2950 | * interface will be allowed. The HBA is set to block the management interface | |
2951 | * when the driver prepares the HBA interface for online or offline and then | |
2952 | * set to unblock the management interface afterwards. | |
2953 | **/ | |
2954 | void | |
2955 | lpfc_unblock_mgmt_io(struct lpfc_hba * phba) | |
2956 | { | |
2957 | unsigned long iflag; | |
2958 | ||
2959 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2960 | phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; | |
2961 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2962 | } | |
2963 | ||
2964 | /** | |
2965 | * lpfc_offline_prep - Prepare a HBA to be brought offline | |
2966 | * @phba: pointer to lpfc hba data structure. | |
2967 | * | |
2968 | * This routine is invoked to prepare a HBA to be brought offline. It performs | |
2969 | * unregistration login to all the nodes on all vports and flushes the mailbox | |
2970 | * queue to make it ready to be brought offline. | |
2971 | **/ | |
2972 | void | |
2973 | lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) | |
2974 | { | |
2975 | struct lpfc_vport *vport = phba->pport; | |
2976 | struct lpfc_nodelist *ndlp, *next_ndlp; | |
2977 | struct lpfc_vport **vports; | |
2978 | struct Scsi_Host *shost; | |
2979 | int i; | |
2980 | ||
2981 | if (vport->fc_flag & FC_OFFLINE_MODE) | |
2982 | return; | |
2983 | ||
2984 | lpfc_block_mgmt_io(phba, mbx_action); | |
2985 | ||
2986 | lpfc_linkdown(phba); | |
2987 | ||
2988 | /* Issue an unreg_login to all nodes on all vports */ | |
2989 | vports = lpfc_create_vport_work_array(phba); | |
2990 | if (vports != NULL) { | |
2991 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
2992 | if (vports[i]->load_flag & FC_UNLOADING) | |
2993 | continue; | |
2994 | shost = lpfc_shost_from_vport(vports[i]); | |
2995 | spin_lock_irq(shost->host_lock); | |
2996 | vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; | |
2997 | vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
2998 | vports[i]->fc_flag &= ~FC_VFI_REGISTERED; | |
2999 | spin_unlock_irq(shost->host_lock); | |
3000 | ||
3001 | shost = lpfc_shost_from_vport(vports[i]); | |
3002 | list_for_each_entry_safe(ndlp, next_ndlp, | |
3003 | &vports[i]->fc_nodes, | |
3004 | nlp_listp) { | |
3005 | if (!NLP_CHK_NODE_ACT(ndlp)) | |
3006 | continue; | |
3007 | if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) | |
3008 | continue; | |
3009 | if (ndlp->nlp_type & NLP_FABRIC) { | |
3010 | lpfc_disc_state_machine(vports[i], ndlp, | |
3011 | NULL, NLP_EVT_DEVICE_RECOVERY); | |
3012 | lpfc_disc_state_machine(vports[i], ndlp, | |
3013 | NULL, NLP_EVT_DEVICE_RM); | |
3014 | } | |
3015 | spin_lock_irq(shost->host_lock); | |
3016 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; | |
3017 | spin_unlock_irq(shost->host_lock); | |
3018 | /* | |
3019 | * Whenever an SLI4 port goes offline, free the | |
3020 | * RPI. Get a new RPI when the adapter port | |
3021 | * comes back online. | |
3022 | */ | |
3023 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
3024 | lpfc_printf_vlog(ndlp->vport, | |
3025 | KERN_INFO, LOG_NODE, | |
3026 | "0011 lpfc_offline: " | |
3027 | "ndlp:x%p did %x " | |
3028 | "usgmap:x%x rpi:%x\n", | |
3029 | ndlp, ndlp->nlp_DID, | |
3030 | ndlp->nlp_usg_map, | |
3031 | ndlp->nlp_rpi); | |
3032 | ||
3033 | lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); | |
3034 | } | |
3035 | lpfc_unreg_rpi(vports[i], ndlp); | |
3036 | } | |
3037 | } | |
3038 | } | |
3039 | lpfc_destroy_vport_work_array(phba, vports); | |
3040 | ||
3041 | lpfc_sli_mbox_sys_shutdown(phba, mbx_action); | |
3042 | } | |
3043 | ||
3044 | /** | |
3045 | * lpfc_offline - Bring a HBA offline | |
3046 | * @phba: pointer to lpfc hba data structure. | |
3047 | * | |
3048 | * This routine actually brings a HBA offline. It stops all the timers | |
3049 | * associated with the HBA, brings down the SLI layer, and eventually | |
3050 | * marks the HBA as in offline state for the upper layer protocol. | |
3051 | **/ | |
3052 | void | |
3053 | lpfc_offline(struct lpfc_hba *phba) | |
3054 | { | |
3055 | struct Scsi_Host *shost; | |
3056 | struct lpfc_vport **vports; | |
3057 | int i; | |
3058 | ||
3059 | if (phba->pport->fc_flag & FC_OFFLINE_MODE) | |
3060 | return; | |
3061 | ||
3062 | /* stop port and all timers associated with this hba */ | |
3063 | lpfc_stop_port(phba); | |
3064 | vports = lpfc_create_vport_work_array(phba); | |
3065 | if (vports != NULL) | |
3066 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) | |
3067 | lpfc_stop_vport_timers(vports[i]); | |
3068 | lpfc_destroy_vport_work_array(phba, vports); | |
3069 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
3070 | "0460 Bring Adapter offline\n"); | |
3071 | /* Bring down the SLI Layer and cleanup. The HBA is offline | |
3072 | now. */ | |
3073 | lpfc_sli_hba_down(phba); | |
3074 | spin_lock_irq(&phba->hbalock); | |
3075 | phba->work_ha = 0; | |
3076 | spin_unlock_irq(&phba->hbalock); | |
3077 | vports = lpfc_create_vport_work_array(phba); | |
3078 | if (vports != NULL) | |
3079 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
3080 | shost = lpfc_shost_from_vport(vports[i]); | |
3081 | spin_lock_irq(shost->host_lock); | |
3082 | vports[i]->work_port_events = 0; | |
3083 | vports[i]->fc_flag |= FC_OFFLINE_MODE; | |
3084 | spin_unlock_irq(shost->host_lock); | |
3085 | } | |
3086 | lpfc_destroy_vport_work_array(phba, vports); | |
3087 | } | |
3088 | ||
3089 | /** | |
3090 | * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists | |
3091 | * @phba: pointer to lpfc hba data structure. | |
3092 | * | |
3093 | * This routine is to free all the SCSI buffers and IOCBs from the driver | |
3094 | * list back to kernel. It is called from lpfc_pci_remove_one to free | |
3095 | * the internal resources before the device is removed from the system. | |
3096 | **/ | |
3097 | static void | |
3098 | lpfc_scsi_free(struct lpfc_hba *phba) | |
3099 | { | |
3100 | struct lpfc_scsi_buf *sb, *sb_next; | |
3101 | struct lpfc_iocbq *io, *io_next; | |
3102 | ||
3103 | spin_lock_irq(&phba->hbalock); | |
3104 | ||
3105 | /* Release all the lpfc_scsi_bufs maintained by this host. */ | |
3106 | ||
3107 | spin_lock(&phba->scsi_buf_list_put_lock); | |
3108 | list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put, | |
3109 | list) { | |
3110 | list_del(&sb->list); | |
3111 | pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, | |
3112 | sb->dma_handle); | |
3113 | kfree(sb); | |
3114 | phba->total_scsi_bufs--; | |
3115 | } | |
3116 | spin_unlock(&phba->scsi_buf_list_put_lock); | |
3117 | ||
3118 | spin_lock(&phba->scsi_buf_list_get_lock); | |
3119 | list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get, | |
3120 | list) { | |
3121 | list_del(&sb->list); | |
3122 | pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, | |
3123 | sb->dma_handle); | |
3124 | kfree(sb); | |
3125 | phba->total_scsi_bufs--; | |
3126 | } | |
3127 | spin_unlock(&phba->scsi_buf_list_get_lock); | |
3128 | ||
3129 | /* Release all the lpfc_iocbq entries maintained by this host. */ | |
3130 | list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { | |
3131 | list_del(&io->list); | |
3132 | kfree(io); | |
3133 | phba->total_iocbq_bufs--; | |
3134 | } | |
3135 | ||
3136 | spin_unlock_irq(&phba->hbalock); | |
3137 | } | |
3138 | ||
3139 | /** | |
3140 | * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping | |
3141 | * @phba: pointer to lpfc hba data structure. | |
3142 | * | |
3143 | * This routine first calculates the sizes of the current els and allocated | |
3144 | * scsi sgl lists, and then goes through all sgls to updates the physical | |
3145 | * XRIs assigned due to port function reset. During port initialization, the | |
3146 | * current els and allocated scsi sgl lists are 0s. | |
3147 | * | |
3148 | * Return codes | |
3149 | * 0 - successful (for now, it always returns 0) | |
3150 | **/ | |
3151 | int | |
3152 | lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba) | |
3153 | { | |
3154 | struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; | |
3155 | struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL; | |
3156 | uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt; | |
3157 | LIST_HEAD(els_sgl_list); | |
3158 | LIST_HEAD(scsi_sgl_list); | |
3159 | int rc; | |
3160 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
3161 | ||
3162 | /* | |
3163 | * update on pci function's els xri-sgl list | |
3164 | */ | |
3165 | els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); | |
3166 | if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { | |
3167 | /* els xri-sgl expanded */ | |
3168 | xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; | |
3169 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3170 | "3157 ELS xri-sgl count increased from " | |
3171 | "%d to %d\n", phba->sli4_hba.els_xri_cnt, | |
3172 | els_xri_cnt); | |
3173 | /* allocate the additional els sgls */ | |
3174 | for (i = 0; i < xri_cnt; i++) { | |
3175 | sglq_entry = kzalloc(sizeof(struct lpfc_sglq), | |
3176 | GFP_KERNEL); | |
3177 | if (sglq_entry == NULL) { | |
3178 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3179 | "2562 Failure to allocate an " | |
3180 | "ELS sgl entry:%d\n", i); | |
3181 | rc = -ENOMEM; | |
3182 | goto out_free_mem; | |
3183 | } | |
3184 | sglq_entry->buff_type = GEN_BUFF_TYPE; | |
3185 | sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, | |
3186 | &sglq_entry->phys); | |
3187 | if (sglq_entry->virt == NULL) { | |
3188 | kfree(sglq_entry); | |
3189 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3190 | "2563 Failure to allocate an " | |
3191 | "ELS mbuf:%d\n", i); | |
3192 | rc = -ENOMEM; | |
3193 | goto out_free_mem; | |
3194 | } | |
3195 | sglq_entry->sgl = sglq_entry->virt; | |
3196 | memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); | |
3197 | sglq_entry->state = SGL_FREED; | |
3198 | list_add_tail(&sglq_entry->list, &els_sgl_list); | |
3199 | } | |
3200 | spin_lock_irq(&phba->hbalock); | |
3201 | spin_lock(&pring->ring_lock); | |
3202 | list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); | |
3203 | spin_unlock(&pring->ring_lock); | |
3204 | spin_unlock_irq(&phba->hbalock); | |
3205 | } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { | |
3206 | /* els xri-sgl shrinked */ | |
3207 | xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; | |
3208 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3209 | "3158 ELS xri-sgl count decreased from " | |
3210 | "%d to %d\n", phba->sli4_hba.els_xri_cnt, | |
3211 | els_xri_cnt); | |
3212 | spin_lock_irq(&phba->hbalock); | |
3213 | spin_lock(&pring->ring_lock); | |
3214 | list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list); | |
3215 | spin_unlock(&pring->ring_lock); | |
3216 | spin_unlock_irq(&phba->hbalock); | |
3217 | /* release extra els sgls from list */ | |
3218 | for (i = 0; i < xri_cnt; i++) { | |
3219 | list_remove_head(&els_sgl_list, | |
3220 | sglq_entry, struct lpfc_sglq, list); | |
3221 | if (sglq_entry) { | |
3222 | lpfc_mbuf_free(phba, sglq_entry->virt, | |
3223 | sglq_entry->phys); | |
3224 | kfree(sglq_entry); | |
3225 | } | |
3226 | } | |
3227 | spin_lock_irq(&phba->hbalock); | |
3228 | spin_lock(&pring->ring_lock); | |
3229 | list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); | |
3230 | spin_unlock(&pring->ring_lock); | |
3231 | spin_unlock_irq(&phba->hbalock); | |
3232 | } else | |
3233 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3234 | "3163 ELS xri-sgl count unchanged: %d\n", | |
3235 | els_xri_cnt); | |
3236 | phba->sli4_hba.els_xri_cnt = els_xri_cnt; | |
3237 | ||
3238 | /* update xris to els sgls on the list */ | |
3239 | sglq_entry = NULL; | |
3240 | sglq_entry_next = NULL; | |
3241 | list_for_each_entry_safe(sglq_entry, sglq_entry_next, | |
3242 | &phba->sli4_hba.lpfc_sgl_list, list) { | |
3243 | lxri = lpfc_sli4_next_xritag(phba); | |
3244 | if (lxri == NO_XRI) { | |
3245 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3246 | "2400 Failed to allocate xri for " | |
3247 | "ELS sgl\n"); | |
3248 | rc = -ENOMEM; | |
3249 | goto out_free_mem; | |
3250 | } | |
3251 | sglq_entry->sli4_lxritag = lxri; | |
3252 | sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; | |
3253 | } | |
3254 | ||
3255 | /* | |
3256 | * update on pci function's allocated scsi xri-sgl list | |
3257 | */ | |
3258 | phba->total_scsi_bufs = 0; | |
3259 | ||
3260 | /* maximum number of xris available for scsi buffers */ | |
3261 | phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - | |
3262 | els_xri_cnt; | |
3263 | ||
3264 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3265 | "2401 Current allocated SCSI xri-sgl count:%d, " | |
3266 | "maximum SCSI xri count:%d\n", | |
3267 | phba->sli4_hba.scsi_xri_cnt, | |
3268 | phba->sli4_hba.scsi_xri_max); | |
3269 | ||
3270 | spin_lock_irq(&phba->scsi_buf_list_get_lock); | |
3271 | spin_lock(&phba->scsi_buf_list_put_lock); | |
3272 | list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list); | |
3273 | list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list); | |
3274 | spin_unlock(&phba->scsi_buf_list_put_lock); | |
3275 | spin_unlock_irq(&phba->scsi_buf_list_get_lock); | |
3276 | ||
3277 | if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { | |
3278 | /* max scsi xri shrinked below the allocated scsi buffers */ | |
3279 | scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - | |
3280 | phba->sli4_hba.scsi_xri_max; | |
3281 | /* release the extra allocated scsi buffers */ | |
3282 | for (i = 0; i < scsi_xri_cnt; i++) { | |
3283 | list_remove_head(&scsi_sgl_list, psb, | |
3284 | struct lpfc_scsi_buf, list); | |
3285 | if (psb) { | |
3286 | pci_pool_free(phba->lpfc_scsi_dma_buf_pool, | |
3287 | psb->data, psb->dma_handle); | |
3288 | kfree(psb); | |
3289 | } | |
3290 | } | |
3291 | spin_lock_irq(&phba->scsi_buf_list_get_lock); | |
3292 | phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; | |
3293 | spin_unlock_irq(&phba->scsi_buf_list_get_lock); | |
3294 | } | |
3295 | ||
3296 | /* update xris associated to remaining allocated scsi buffers */ | |
3297 | psb = NULL; | |
3298 | psb_next = NULL; | |
3299 | list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { | |
3300 | lxri = lpfc_sli4_next_xritag(phba); | |
3301 | if (lxri == NO_XRI) { | |
3302 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3303 | "2560 Failed to allocate xri for " | |
3304 | "scsi buffer\n"); | |
3305 | rc = -ENOMEM; | |
3306 | goto out_free_mem; | |
3307 | } | |
3308 | psb->cur_iocbq.sli4_lxritag = lxri; | |
3309 | psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; | |
3310 | } | |
3311 | spin_lock_irq(&phba->scsi_buf_list_get_lock); | |
3312 | spin_lock(&phba->scsi_buf_list_put_lock); | |
3313 | list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get); | |
3314 | INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); | |
3315 | spin_unlock(&phba->scsi_buf_list_put_lock); | |
3316 | spin_unlock_irq(&phba->scsi_buf_list_get_lock); | |
3317 | ||
3318 | return 0; | |
3319 | ||
3320 | out_free_mem: | |
3321 | lpfc_free_els_sgl_list(phba); | |
3322 | lpfc_scsi_free(phba); | |
3323 | return rc; | |
3324 | } | |
3325 | ||
3326 | /** | |
3327 | * lpfc_create_port - Create an FC port | |
3328 | * @phba: pointer to lpfc hba data structure. | |
3329 | * @instance: a unique integer ID to this FC port. | |
3330 | * @dev: pointer to the device data structure. | |
3331 | * | |
3332 | * This routine creates a FC port for the upper layer protocol. The FC port | |
3333 | * can be created on top of either a physical port or a virtual port provided | |
3334 | * by the HBA. This routine also allocates a SCSI host data structure (shost) | |
3335 | * and associates the FC port created before adding the shost into the SCSI | |
3336 | * layer. | |
3337 | * | |
3338 | * Return codes | |
3339 | * @vport - pointer to the virtual N_Port data structure. | |
3340 | * NULL - port create failed. | |
3341 | **/ | |
3342 | struct lpfc_vport * | |
3343 | lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) | |
3344 | { | |
3345 | struct lpfc_vport *vport; | |
3346 | struct Scsi_Host *shost; | |
3347 | int error = 0; | |
3348 | ||
3349 | if (dev != &phba->pcidev->dev) { | |
3350 | shost = scsi_host_alloc(&lpfc_vport_template, | |
3351 | sizeof(struct lpfc_vport)); | |
3352 | } else { | |
3353 | if (phba->sli_rev == LPFC_SLI_REV4) | |
3354 | shost = scsi_host_alloc(&lpfc_template, | |
3355 | sizeof(struct lpfc_vport)); | |
3356 | else | |
3357 | shost = scsi_host_alloc(&lpfc_template_s3, | |
3358 | sizeof(struct lpfc_vport)); | |
3359 | } | |
3360 | if (!shost) | |
3361 | goto out; | |
3362 | ||
3363 | vport = (struct lpfc_vport *) shost->hostdata; | |
3364 | vport->phba = phba; | |
3365 | vport->load_flag |= FC_LOADING; | |
3366 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
3367 | vport->fc_rscn_flush = 0; | |
3368 | ||
3369 | lpfc_get_vport_cfgparam(vport); | |
3370 | shost->unique_id = instance; | |
3371 | shost->max_id = LPFC_MAX_TARGET; | |
3372 | shost->max_lun = vport->cfg_max_luns; | |
3373 | shost->this_id = -1; | |
3374 | shost->max_cmd_len = 16; | |
3375 | shost->nr_hw_queues = phba->cfg_fcp_io_channel; | |
3376 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
3377 | shost->dma_boundary = | |
3378 | phba->sli4_hba.pc_sli4_params.sge_supp_len-1; | |
3379 | shost->sg_tablesize = phba->cfg_sg_seg_cnt; | |
3380 | } | |
3381 | ||
3382 | /* | |
3383 | * Set initial can_queue value since 0 is no longer supported and | |
3384 | * scsi_add_host will fail. This will be adjusted later based on the | |
3385 | * max xri value determined in hba setup. | |
3386 | */ | |
3387 | shost->can_queue = phba->cfg_hba_queue_depth - 10; | |
3388 | if (dev != &phba->pcidev->dev) { | |
3389 | shost->transportt = lpfc_vport_transport_template; | |
3390 | vport->port_type = LPFC_NPIV_PORT; | |
3391 | } else { | |
3392 | shost->transportt = lpfc_transport_template; | |
3393 | vport->port_type = LPFC_PHYSICAL_PORT; | |
3394 | } | |
3395 | ||
3396 | /* Initialize all internally managed lists. */ | |
3397 | INIT_LIST_HEAD(&vport->fc_nodes); | |
3398 | INIT_LIST_HEAD(&vport->rcv_buffer_list); | |
3399 | spin_lock_init(&vport->work_port_lock); | |
3400 | ||
3401 | init_timer(&vport->fc_disctmo); | |
3402 | vport->fc_disctmo.function = lpfc_disc_timeout; | |
3403 | vport->fc_disctmo.data = (unsigned long)vport; | |
3404 | ||
3405 | init_timer(&vport->els_tmofunc); | |
3406 | vport->els_tmofunc.function = lpfc_els_timeout; | |
3407 | vport->els_tmofunc.data = (unsigned long)vport; | |
3408 | ||
3409 | init_timer(&vport->delayed_disc_tmo); | |
3410 | vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; | |
3411 | vport->delayed_disc_tmo.data = (unsigned long)vport; | |
3412 | ||
3413 | error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); | |
3414 | if (error) | |
3415 | goto out_put_shost; | |
3416 | ||
3417 | spin_lock_irq(&phba->hbalock); | |
3418 | list_add_tail(&vport->listentry, &phba->port_list); | |
3419 | spin_unlock_irq(&phba->hbalock); | |
3420 | return vport; | |
3421 | ||
3422 | out_put_shost: | |
3423 | scsi_host_put(shost); | |
3424 | out: | |
3425 | return NULL; | |
3426 | } | |
3427 | ||
3428 | /** | |
3429 | * destroy_port - destroy an FC port | |
3430 | * @vport: pointer to an lpfc virtual N_Port data structure. | |
3431 | * | |
3432 | * This routine destroys a FC port from the upper layer protocol. All the | |
3433 | * resources associated with the port are released. | |
3434 | **/ | |
3435 | void | |
3436 | destroy_port(struct lpfc_vport *vport) | |
3437 | { | |
3438 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
3439 | struct lpfc_hba *phba = vport->phba; | |
3440 | ||
3441 | lpfc_debugfs_terminate(vport); | |
3442 | fc_remove_host(shost); | |
3443 | scsi_remove_host(shost); | |
3444 | ||
3445 | spin_lock_irq(&phba->hbalock); | |
3446 | list_del_init(&vport->listentry); | |
3447 | spin_unlock_irq(&phba->hbalock); | |
3448 | ||
3449 | lpfc_cleanup(vport); | |
3450 | return; | |
3451 | } | |
3452 | ||
3453 | /** | |
3454 | * lpfc_get_instance - Get a unique integer ID | |
3455 | * | |
3456 | * This routine allocates a unique integer ID from lpfc_hba_index pool. It | |
3457 | * uses the kernel idr facility to perform the task. | |
3458 | * | |
3459 | * Return codes: | |
3460 | * instance - a unique integer ID allocated as the new instance. | |
3461 | * -1 - lpfc get instance failed. | |
3462 | **/ | |
3463 | int | |
3464 | lpfc_get_instance(void) | |
3465 | { | |
3466 | int ret; | |
3467 | ||
3468 | ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); | |
3469 | return ret < 0 ? -1 : ret; | |
3470 | } | |
3471 | ||
3472 | /** | |
3473 | * lpfc_scan_finished - method for SCSI layer to detect whether scan is done | |
3474 | * @shost: pointer to SCSI host data structure. | |
3475 | * @time: elapsed time of the scan in jiffies. | |
3476 | * | |
3477 | * This routine is called by the SCSI layer with a SCSI host to determine | |
3478 | * whether the scan host is finished. | |
3479 | * | |
3480 | * Note: there is no scan_start function as adapter initialization will have | |
3481 | * asynchronously kicked off the link initialization. | |
3482 | * | |
3483 | * Return codes | |
3484 | * 0 - SCSI host scan is not over yet. | |
3485 | * 1 - SCSI host scan is over. | |
3486 | **/ | |
3487 | int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) | |
3488 | { | |
3489 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
3490 | struct lpfc_hba *phba = vport->phba; | |
3491 | int stat = 0; | |
3492 | ||
3493 | spin_lock_irq(shost->host_lock); | |
3494 | ||
3495 | if (vport->load_flag & FC_UNLOADING) { | |
3496 | stat = 1; | |
3497 | goto finished; | |
3498 | } | |
3499 | if (time >= msecs_to_jiffies(30 * 1000)) { | |
3500 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
3501 | "0461 Scanning longer than 30 " | |
3502 | "seconds. Continuing initialization\n"); | |
3503 | stat = 1; | |
3504 | goto finished; | |
3505 | } | |
3506 | if (time >= msecs_to_jiffies(15 * 1000) && | |
3507 | phba->link_state <= LPFC_LINK_DOWN) { | |
3508 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
3509 | "0465 Link down longer than 15 " | |
3510 | "seconds. Continuing initialization\n"); | |
3511 | stat = 1; | |
3512 | goto finished; | |
3513 | } | |
3514 | ||
3515 | if (vport->port_state != LPFC_VPORT_READY) | |
3516 | goto finished; | |
3517 | if (vport->num_disc_nodes || vport->fc_prli_sent) | |
3518 | goto finished; | |
3519 | if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000)) | |
3520 | goto finished; | |
3521 | if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) | |
3522 | goto finished; | |
3523 | ||
3524 | stat = 1; | |
3525 | ||
3526 | finished: | |
3527 | spin_unlock_irq(shost->host_lock); | |
3528 | return stat; | |
3529 | } | |
3530 | ||
3531 | /** | |
3532 | * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port | |
3533 | * @shost: pointer to SCSI host data structure. | |
3534 | * | |
3535 | * This routine initializes a given SCSI host attributes on a FC port. The | |
3536 | * SCSI host can be either on top of a physical port or a virtual port. | |
3537 | **/ | |
3538 | void lpfc_host_attrib_init(struct Scsi_Host *shost) | |
3539 | { | |
3540 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
3541 | struct lpfc_hba *phba = vport->phba; | |
3542 | /* | |
3543 | * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). | |
3544 | */ | |
3545 | ||
3546 | fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); | |
3547 | fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); | |
3548 | fc_host_supported_classes(shost) = FC_COS_CLASS3; | |
3549 | ||
3550 | memset(fc_host_supported_fc4s(shost), 0, | |
3551 | sizeof(fc_host_supported_fc4s(shost))); | |
3552 | fc_host_supported_fc4s(shost)[2] = 1; | |
3553 | fc_host_supported_fc4s(shost)[7] = 1; | |
3554 | ||
3555 | lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), | |
3556 | sizeof fc_host_symbolic_name(shost)); | |
3557 | ||
3558 | fc_host_supported_speeds(shost) = 0; | |
3559 | if (phba->lmt & LMT_32Gb) | |
3560 | fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT; | |
3561 | if (phba->lmt & LMT_16Gb) | |
3562 | fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; | |
3563 | if (phba->lmt & LMT_10Gb) | |
3564 | fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; | |
3565 | if (phba->lmt & LMT_8Gb) | |
3566 | fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; | |
3567 | if (phba->lmt & LMT_4Gb) | |
3568 | fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; | |
3569 | if (phba->lmt & LMT_2Gb) | |
3570 | fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; | |
3571 | if (phba->lmt & LMT_1Gb) | |
3572 | fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; | |
3573 | ||
3574 | fc_host_maxframe_size(shost) = | |
3575 | (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | | |
3576 | (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; | |
3577 | ||
3578 | fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; | |
3579 | ||
3580 | /* This value is also unchanging */ | |
3581 | memset(fc_host_active_fc4s(shost), 0, | |
3582 | sizeof(fc_host_active_fc4s(shost))); | |
3583 | fc_host_active_fc4s(shost)[2] = 1; | |
3584 | fc_host_active_fc4s(shost)[7] = 1; | |
3585 | ||
3586 | fc_host_max_npiv_vports(shost) = phba->max_vpi; | |
3587 | spin_lock_irq(shost->host_lock); | |
3588 | vport->load_flag &= ~FC_LOADING; | |
3589 | spin_unlock_irq(shost->host_lock); | |
3590 | } | |
3591 | ||
3592 | /** | |
3593 | * lpfc_stop_port_s3 - Stop SLI3 device port | |
3594 | * @phba: pointer to lpfc hba data structure. | |
3595 | * | |
3596 | * This routine is invoked to stop an SLI3 device port, it stops the device | |
3597 | * from generating interrupts and stops the device driver's timers for the | |
3598 | * device. | |
3599 | **/ | |
3600 | static void | |
3601 | lpfc_stop_port_s3(struct lpfc_hba *phba) | |
3602 | { | |
3603 | /* Clear all interrupt enable conditions */ | |
3604 | writel(0, phba->HCregaddr); | |
3605 | readl(phba->HCregaddr); /* flush */ | |
3606 | /* Clear all pending interrupts */ | |
3607 | writel(0xffffffff, phba->HAregaddr); | |
3608 | readl(phba->HAregaddr); /* flush */ | |
3609 | ||
3610 | /* Reset some HBA SLI setup states */ | |
3611 | lpfc_stop_hba_timers(phba); | |
3612 | phba->pport->work_port_events = 0; | |
3613 | } | |
3614 | ||
3615 | /** | |
3616 | * lpfc_stop_port_s4 - Stop SLI4 device port | |
3617 | * @phba: pointer to lpfc hba data structure. | |
3618 | * | |
3619 | * This routine is invoked to stop an SLI4 device port, it stops the device | |
3620 | * from generating interrupts and stops the device driver's timers for the | |
3621 | * device. | |
3622 | **/ | |
3623 | static void | |
3624 | lpfc_stop_port_s4(struct lpfc_hba *phba) | |
3625 | { | |
3626 | /* Reset some HBA SLI4 setup states */ | |
3627 | lpfc_stop_hba_timers(phba); | |
3628 | phba->pport->work_port_events = 0; | |
3629 | phba->sli4_hba.intr_enable = 0; | |
3630 | } | |
3631 | ||
3632 | /** | |
3633 | * lpfc_stop_port - Wrapper function for stopping hba port | |
3634 | * @phba: Pointer to HBA context object. | |
3635 | * | |
3636 | * This routine wraps the actual SLI3 or SLI4 hba stop port routine from | |
3637 | * the API jump table function pointer from the lpfc_hba struct. | |
3638 | **/ | |
3639 | void | |
3640 | lpfc_stop_port(struct lpfc_hba *phba) | |
3641 | { | |
3642 | phba->lpfc_stop_port(phba); | |
3643 | } | |
3644 | ||
3645 | /** | |
3646 | * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer | |
3647 | * @phba: Pointer to hba for which this call is being executed. | |
3648 | * | |
3649 | * This routine starts the timer waiting for the FCF rediscovery to complete. | |
3650 | **/ | |
3651 | void | |
3652 | lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) | |
3653 | { | |
3654 | unsigned long fcf_redisc_wait_tmo = | |
3655 | (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); | |
3656 | /* Start fcf rediscovery wait period timer */ | |
3657 | mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); | |
3658 | spin_lock_irq(&phba->hbalock); | |
3659 | /* Allow action to new fcf asynchronous event */ | |
3660 | phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); | |
3661 | /* Mark the FCF rediscovery pending state */ | |
3662 | phba->fcf.fcf_flag |= FCF_REDISC_PEND; | |
3663 | spin_unlock_irq(&phba->hbalock); | |
3664 | } | |
3665 | ||
3666 | /** | |
3667 | * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout | |
3668 | * @ptr: Map to lpfc_hba data structure pointer. | |
3669 | * | |
3670 | * This routine is invoked when waiting for FCF table rediscover has been | |
3671 | * timed out. If new FCF record(s) has (have) been discovered during the | |
3672 | * wait period, a new FCF event shall be added to the FCOE async event | |
3673 | * list, and then worker thread shall be waked up for processing from the | |
3674 | * worker thread context. | |
3675 | **/ | |
3676 | static void | |
3677 | lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) | |
3678 | { | |
3679 | struct lpfc_hba *phba = (struct lpfc_hba *)ptr; | |
3680 | ||
3681 | /* Don't send FCF rediscovery event if timer cancelled */ | |
3682 | spin_lock_irq(&phba->hbalock); | |
3683 | if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { | |
3684 | spin_unlock_irq(&phba->hbalock); | |
3685 | return; | |
3686 | } | |
3687 | /* Clear FCF rediscovery timer pending flag */ | |
3688 | phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; | |
3689 | /* FCF rediscovery event to worker thread */ | |
3690 | phba->fcf.fcf_flag |= FCF_REDISC_EVT; | |
3691 | spin_unlock_irq(&phba->hbalock); | |
3692 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP, | |
3693 | "2776 FCF rediscover quiescent timer expired\n"); | |
3694 | /* wake up worker thread */ | |
3695 | lpfc_worker_wake_up(phba); | |
3696 | } | |
3697 | ||
3698 | /** | |
3699 | * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code | |
3700 | * @phba: pointer to lpfc hba data structure. | |
3701 | * @acqe_link: pointer to the async link completion queue entry. | |
3702 | * | |
3703 | * This routine is to parse the SLI4 link-attention link fault code and | |
3704 | * translate it into the base driver's read link attention mailbox command | |
3705 | * status. | |
3706 | * | |
3707 | * Return: Link-attention status in terms of base driver's coding. | |
3708 | **/ | |
3709 | static uint16_t | |
3710 | lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, | |
3711 | struct lpfc_acqe_link *acqe_link) | |
3712 | { | |
3713 | uint16_t latt_fault; | |
3714 | ||
3715 | switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { | |
3716 | case LPFC_ASYNC_LINK_FAULT_NONE: | |
3717 | case LPFC_ASYNC_LINK_FAULT_LOCAL: | |
3718 | case LPFC_ASYNC_LINK_FAULT_REMOTE: | |
3719 | latt_fault = 0; | |
3720 | break; | |
3721 | default: | |
3722 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3723 | "0398 Invalid link fault code: x%x\n", | |
3724 | bf_get(lpfc_acqe_link_fault, acqe_link)); | |
3725 | latt_fault = MBXERR_ERROR; | |
3726 | break; | |
3727 | } | |
3728 | return latt_fault; | |
3729 | } | |
3730 | ||
3731 | /** | |
3732 | * lpfc_sli4_parse_latt_type - Parse sli4 link attention type | |
3733 | * @phba: pointer to lpfc hba data structure. | |
3734 | * @acqe_link: pointer to the async link completion queue entry. | |
3735 | * | |
3736 | * This routine is to parse the SLI4 link attention type and translate it | |
3737 | * into the base driver's link attention type coding. | |
3738 | * | |
3739 | * Return: Link attention type in terms of base driver's coding. | |
3740 | **/ | |
3741 | static uint8_t | |
3742 | lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, | |
3743 | struct lpfc_acqe_link *acqe_link) | |
3744 | { | |
3745 | uint8_t att_type; | |
3746 | ||
3747 | switch (bf_get(lpfc_acqe_link_status, acqe_link)) { | |
3748 | case LPFC_ASYNC_LINK_STATUS_DOWN: | |
3749 | case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: | |
3750 | att_type = LPFC_ATT_LINK_DOWN; | |
3751 | break; | |
3752 | case LPFC_ASYNC_LINK_STATUS_UP: | |
3753 | /* Ignore physical link up events - wait for logical link up */ | |
3754 | att_type = LPFC_ATT_RESERVED; | |
3755 | break; | |
3756 | case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: | |
3757 | att_type = LPFC_ATT_LINK_UP; | |
3758 | break; | |
3759 | default: | |
3760 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3761 | "0399 Invalid link attention type: x%x\n", | |
3762 | bf_get(lpfc_acqe_link_status, acqe_link)); | |
3763 | att_type = LPFC_ATT_RESERVED; | |
3764 | break; | |
3765 | } | |
3766 | return att_type; | |
3767 | } | |
3768 | ||
3769 | /** | |
3770 | * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed | |
3771 | * @phba: pointer to lpfc hba data structure. | |
3772 | * | |
3773 | * This routine is to get an SLI3 FC port's link speed in Mbps. | |
3774 | * | |
3775 | * Return: link speed in terms of Mbps. | |
3776 | **/ | |
3777 | uint32_t | |
3778 | lpfc_sli_port_speed_get(struct lpfc_hba *phba) | |
3779 | { | |
3780 | uint32_t link_speed; | |
3781 | ||
3782 | if (!lpfc_is_link_up(phba)) | |
3783 | return 0; | |
3784 | ||
3785 | if (phba->sli_rev <= LPFC_SLI_REV3) { | |
3786 | switch (phba->fc_linkspeed) { | |
3787 | case LPFC_LINK_SPEED_1GHZ: | |
3788 | link_speed = 1000; | |
3789 | break; | |
3790 | case LPFC_LINK_SPEED_2GHZ: | |
3791 | link_speed = 2000; | |
3792 | break; | |
3793 | case LPFC_LINK_SPEED_4GHZ: | |
3794 | link_speed = 4000; | |
3795 | break; | |
3796 | case LPFC_LINK_SPEED_8GHZ: | |
3797 | link_speed = 8000; | |
3798 | break; | |
3799 | case LPFC_LINK_SPEED_10GHZ: | |
3800 | link_speed = 10000; | |
3801 | break; | |
3802 | case LPFC_LINK_SPEED_16GHZ: | |
3803 | link_speed = 16000; | |
3804 | break; | |
3805 | default: | |
3806 | link_speed = 0; | |
3807 | } | |
3808 | } else { | |
3809 | if (phba->sli4_hba.link_state.logical_speed) | |
3810 | link_speed = | |
3811 | phba->sli4_hba.link_state.logical_speed; | |
3812 | else | |
3813 | link_speed = phba->sli4_hba.link_state.speed; | |
3814 | } | |
3815 | return link_speed; | |
3816 | } | |
3817 | ||
3818 | /** | |
3819 | * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed | |
3820 | * @phba: pointer to lpfc hba data structure. | |
3821 | * @evt_code: asynchronous event code. | |
3822 | * @speed_code: asynchronous event link speed code. | |
3823 | * | |
3824 | * This routine is to parse the giving SLI4 async event link speed code into | |
3825 | * value of Mbps for the link speed. | |
3826 | * | |
3827 | * Return: link speed in terms of Mbps. | |
3828 | **/ | |
3829 | static uint32_t | |
3830 | lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, | |
3831 | uint8_t speed_code) | |
3832 | { | |
3833 | uint32_t port_speed; | |
3834 | ||
3835 | switch (evt_code) { | |
3836 | case LPFC_TRAILER_CODE_LINK: | |
3837 | switch (speed_code) { | |
3838 | case LPFC_ASYNC_LINK_SPEED_ZERO: | |
3839 | port_speed = 0; | |
3840 | break; | |
3841 | case LPFC_ASYNC_LINK_SPEED_10MBPS: | |
3842 | port_speed = 10; | |
3843 | break; | |
3844 | case LPFC_ASYNC_LINK_SPEED_100MBPS: | |
3845 | port_speed = 100; | |
3846 | break; | |
3847 | case LPFC_ASYNC_LINK_SPEED_1GBPS: | |
3848 | port_speed = 1000; | |
3849 | break; | |
3850 | case LPFC_ASYNC_LINK_SPEED_10GBPS: | |
3851 | port_speed = 10000; | |
3852 | break; | |
3853 | case LPFC_ASYNC_LINK_SPEED_20GBPS: | |
3854 | port_speed = 20000; | |
3855 | break; | |
3856 | case LPFC_ASYNC_LINK_SPEED_25GBPS: | |
3857 | port_speed = 25000; | |
3858 | break; | |
3859 | case LPFC_ASYNC_LINK_SPEED_40GBPS: | |
3860 | port_speed = 40000; | |
3861 | break; | |
3862 | default: | |
3863 | port_speed = 0; | |
3864 | } | |
3865 | break; | |
3866 | case LPFC_TRAILER_CODE_FC: | |
3867 | switch (speed_code) { | |
3868 | case LPFC_FC_LA_SPEED_UNKNOWN: | |
3869 | port_speed = 0; | |
3870 | break; | |
3871 | case LPFC_FC_LA_SPEED_1G: | |
3872 | port_speed = 1000; | |
3873 | break; | |
3874 | case LPFC_FC_LA_SPEED_2G: | |
3875 | port_speed = 2000; | |
3876 | break; | |
3877 | case LPFC_FC_LA_SPEED_4G: | |
3878 | port_speed = 4000; | |
3879 | break; | |
3880 | case LPFC_FC_LA_SPEED_8G: | |
3881 | port_speed = 8000; | |
3882 | break; | |
3883 | case LPFC_FC_LA_SPEED_10G: | |
3884 | port_speed = 10000; | |
3885 | break; | |
3886 | case LPFC_FC_LA_SPEED_16G: | |
3887 | port_speed = 16000; | |
3888 | break; | |
3889 | case LPFC_FC_LA_SPEED_32G: | |
3890 | port_speed = 32000; | |
3891 | break; | |
3892 | default: | |
3893 | port_speed = 0; | |
3894 | } | |
3895 | break; | |
3896 | default: | |
3897 | port_speed = 0; | |
3898 | } | |
3899 | return port_speed; | |
3900 | } | |
3901 | ||
3902 | /** | |
3903 | * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event | |
3904 | * @phba: pointer to lpfc hba data structure. | |
3905 | * @acqe_link: pointer to the async link completion queue entry. | |
3906 | * | |
3907 | * This routine is to handle the SLI4 asynchronous FCoE link event. | |
3908 | **/ | |
3909 | static void | |
3910 | lpfc_sli4_async_link_evt(struct lpfc_hba *phba, | |
3911 | struct lpfc_acqe_link *acqe_link) | |
3912 | { | |
3913 | struct lpfc_dmabuf *mp; | |
3914 | LPFC_MBOXQ_t *pmb; | |
3915 | MAILBOX_t *mb; | |
3916 | struct lpfc_mbx_read_top *la; | |
3917 | uint8_t att_type; | |
3918 | int rc; | |
3919 | ||
3920 | att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); | |
3921 | if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) | |
3922 | return; | |
3923 | phba->fcoe_eventtag = acqe_link->event_tag; | |
3924 | pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3925 | if (!pmb) { | |
3926 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3927 | "0395 The mboxq allocation failed\n"); | |
3928 | return; | |
3929 | } | |
3930 | mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
3931 | if (!mp) { | |
3932 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3933 | "0396 The lpfc_dmabuf allocation failed\n"); | |
3934 | goto out_free_pmb; | |
3935 | } | |
3936 | mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); | |
3937 | if (!mp->virt) { | |
3938 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3939 | "0397 The mbuf allocation failed\n"); | |
3940 | goto out_free_dmabuf; | |
3941 | } | |
3942 | ||
3943 | /* Cleanup any outstanding ELS commands */ | |
3944 | lpfc_els_flush_all_cmd(phba); | |
3945 | ||
3946 | /* Block ELS IOCBs until we have done process link event */ | |
3947 | phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; | |
3948 | ||
3949 | /* Update link event statistics */ | |
3950 | phba->sli.slistat.link_event++; | |
3951 | ||
3952 | /* Create lpfc_handle_latt mailbox command from link ACQE */ | |
3953 | lpfc_read_topology(phba, pmb, mp); | |
3954 | pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; | |
3955 | pmb->vport = phba->pport; | |
3956 | ||
3957 | /* Keep the link status for extra SLI4 state machine reference */ | |
3958 | phba->sli4_hba.link_state.speed = | |
3959 | lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, | |
3960 | bf_get(lpfc_acqe_link_speed, acqe_link)); | |
3961 | phba->sli4_hba.link_state.duplex = | |
3962 | bf_get(lpfc_acqe_link_duplex, acqe_link); | |
3963 | phba->sli4_hba.link_state.status = | |
3964 | bf_get(lpfc_acqe_link_status, acqe_link); | |
3965 | phba->sli4_hba.link_state.type = | |
3966 | bf_get(lpfc_acqe_link_type, acqe_link); | |
3967 | phba->sli4_hba.link_state.number = | |
3968 | bf_get(lpfc_acqe_link_number, acqe_link); | |
3969 | phba->sli4_hba.link_state.fault = | |
3970 | bf_get(lpfc_acqe_link_fault, acqe_link); | |
3971 | phba->sli4_hba.link_state.logical_speed = | |
3972 | bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; | |
3973 | ||
3974 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3975 | "2900 Async FC/FCoE Link event - Speed:%dGBit " | |
3976 | "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " | |
3977 | "Logical speed:%dMbps Fault:%d\n", | |
3978 | phba->sli4_hba.link_state.speed, | |
3979 | phba->sli4_hba.link_state.topology, | |
3980 | phba->sli4_hba.link_state.status, | |
3981 | phba->sli4_hba.link_state.type, | |
3982 | phba->sli4_hba.link_state.number, | |
3983 | phba->sli4_hba.link_state.logical_speed, | |
3984 | phba->sli4_hba.link_state.fault); | |
3985 | /* | |
3986 | * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch | |
3987 | * topology info. Note: Optional for non FC-AL ports. | |
3988 | */ | |
3989 | if (!(phba->hba_flag & HBA_FCOE_MODE)) { | |
3990 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
3991 | if (rc == MBX_NOT_FINISHED) | |
3992 | goto out_free_dmabuf; | |
3993 | return; | |
3994 | } | |
3995 | /* | |
3996 | * For FCoE Mode: fill in all the topology information we need and call | |
3997 | * the READ_TOPOLOGY completion routine to continue without actually | |
3998 | * sending the READ_TOPOLOGY mailbox command to the port. | |
3999 | */ | |
4000 | /* Parse and translate status field */ | |
4001 | mb = &pmb->u.mb; | |
4002 | mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); | |
4003 | ||
4004 | /* Parse and translate link attention fields */ | |
4005 | la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; | |
4006 | la->eventTag = acqe_link->event_tag; | |
4007 | bf_set(lpfc_mbx_read_top_att_type, la, att_type); | |
4008 | bf_set(lpfc_mbx_read_top_link_spd, la, | |
4009 | (bf_get(lpfc_acqe_link_speed, acqe_link))); | |
4010 | ||
4011 | /* Fake the the following irrelvant fields */ | |
4012 | bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); | |
4013 | bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); | |
4014 | bf_set(lpfc_mbx_read_top_il, la, 0); | |
4015 | bf_set(lpfc_mbx_read_top_pb, la, 0); | |
4016 | bf_set(lpfc_mbx_read_top_fa, la, 0); | |
4017 | bf_set(lpfc_mbx_read_top_mm, la, 0); | |
4018 | ||
4019 | /* Invoke the lpfc_handle_latt mailbox command callback function */ | |
4020 | lpfc_mbx_cmpl_read_topology(phba, pmb); | |
4021 | ||
4022 | return; | |
4023 | ||
4024 | out_free_dmabuf: | |
4025 | kfree(mp); | |
4026 | out_free_pmb: | |
4027 | mempool_free(pmb, phba->mbox_mem_pool); | |
4028 | } | |
4029 | ||
4030 | /** | |
4031 | * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event | |
4032 | * @phba: pointer to lpfc hba data structure. | |
4033 | * @acqe_fc: pointer to the async fc completion queue entry. | |
4034 | * | |
4035 | * This routine is to handle the SLI4 asynchronous FC event. It will simply log | |
4036 | * that the event was received and then issue a read_topology mailbox command so | |
4037 | * that the rest of the driver will treat it the same as SLI3. | |
4038 | **/ | |
4039 | static void | |
4040 | lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) | |
4041 | { | |
4042 | struct lpfc_dmabuf *mp; | |
4043 | LPFC_MBOXQ_t *pmb; | |
4044 | MAILBOX_t *mb; | |
4045 | struct lpfc_mbx_read_top *la; | |
4046 | int rc; | |
4047 | ||
4048 | if (bf_get(lpfc_trailer_type, acqe_fc) != | |
4049 | LPFC_FC_LA_EVENT_TYPE_FC_LINK) { | |
4050 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
4051 | "2895 Non FC link Event detected.(%d)\n", | |
4052 | bf_get(lpfc_trailer_type, acqe_fc)); | |
4053 | return; | |
4054 | } | |
4055 | /* Keep the link status for extra SLI4 state machine reference */ | |
4056 | phba->sli4_hba.link_state.speed = | |
4057 | lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, | |
4058 | bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); | |
4059 | phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; | |
4060 | phba->sli4_hba.link_state.topology = | |
4061 | bf_get(lpfc_acqe_fc_la_topology, acqe_fc); | |
4062 | phba->sli4_hba.link_state.status = | |
4063 | bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); | |
4064 | phba->sli4_hba.link_state.type = | |
4065 | bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); | |
4066 | phba->sli4_hba.link_state.number = | |
4067 | bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); | |
4068 | phba->sli4_hba.link_state.fault = | |
4069 | bf_get(lpfc_acqe_link_fault, acqe_fc); | |
4070 | phba->sli4_hba.link_state.logical_speed = | |
4071 | bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; | |
4072 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
4073 | "2896 Async FC event - Speed:%dGBaud Topology:x%x " | |
4074 | "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" | |
4075 | "%dMbps Fault:%d\n", | |
4076 | phba->sli4_hba.link_state.speed, | |
4077 | phba->sli4_hba.link_state.topology, | |
4078 | phba->sli4_hba.link_state.status, | |
4079 | phba->sli4_hba.link_state.type, | |
4080 | phba->sli4_hba.link_state.number, | |
4081 | phba->sli4_hba.link_state.logical_speed, | |
4082 | phba->sli4_hba.link_state.fault); | |
4083 | pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
4084 | if (!pmb) { | |
4085 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
4086 | "2897 The mboxq allocation failed\n"); | |
4087 | return; | |
4088 | } | |
4089 | mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
4090 | if (!mp) { | |
4091 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
4092 | "2898 The lpfc_dmabuf allocation failed\n"); | |
4093 | goto out_free_pmb; | |
4094 | } | |
4095 | mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); | |
4096 | if (!mp->virt) { | |
4097 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
4098 | "2899 The mbuf allocation failed\n"); | |
4099 | goto out_free_dmabuf; | |
4100 | } | |
4101 | ||
4102 | /* Cleanup any outstanding ELS commands */ | |
4103 | lpfc_els_flush_all_cmd(phba); | |
4104 | ||
4105 | /* Block ELS IOCBs until we have done process link event */ | |
4106 | phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; | |
4107 | ||
4108 | /* Update link event statistics */ | |
4109 | phba->sli.slistat.link_event++; | |
4110 | ||
4111 | /* Create lpfc_handle_latt mailbox command from link ACQE */ | |
4112 | lpfc_read_topology(phba, pmb, mp); | |
4113 | pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; | |
4114 | pmb->vport = phba->pport; | |
4115 | ||
4116 | if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) { | |
4117 | /* Parse and translate status field */ | |
4118 | mb = &pmb->u.mb; | |
4119 | mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, | |
4120 | (void *)acqe_fc); | |
4121 | ||
4122 | /* Parse and translate link attention fields */ | |
4123 | la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop; | |
4124 | la->eventTag = acqe_fc->event_tag; | |
4125 | bf_set(lpfc_mbx_read_top_att_type, la, | |
4126 | LPFC_FC_LA_TYPE_LINK_DOWN); | |
4127 | ||
4128 | /* Invoke the mailbox command callback function */ | |
4129 | lpfc_mbx_cmpl_read_topology(phba, pmb); | |
4130 | ||
4131 | return; | |
4132 | } | |
4133 | ||
4134 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
4135 | if (rc == MBX_NOT_FINISHED) | |
4136 | goto out_free_dmabuf; | |
4137 | return; | |
4138 | ||
4139 | out_free_dmabuf: | |
4140 | kfree(mp); | |
4141 | out_free_pmb: | |
4142 | mempool_free(pmb, phba->mbox_mem_pool); | |
4143 | } | |
4144 | ||
4145 | /** | |
4146 | * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event | |
4147 | * @phba: pointer to lpfc hba data structure. | |
4148 | * @acqe_fc: pointer to the async SLI completion queue entry. | |
4149 | * | |
4150 | * This routine is to handle the SLI4 asynchronous SLI events. | |
4151 | **/ | |
4152 | static void | |
4153 | lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) | |
4154 | { | |
4155 | char port_name; | |
4156 | char message[128]; | |
4157 | uint8_t status; | |
4158 | uint8_t evt_type; | |
4159 | uint8_t operational = 0; | |
4160 | struct temp_event temp_event_data; | |
4161 | struct lpfc_acqe_misconfigured_event *misconfigured; | |
4162 | struct Scsi_Host *shost; | |
4163 | ||
4164 | evt_type = bf_get(lpfc_trailer_type, acqe_sli); | |
4165 | ||
4166 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
4167 | "2901 Async SLI event - Event Data1:x%08x Event Data2:" | |
4168 | "x%08x SLI Event Type:%d\n", | |
4169 | acqe_sli->event_data1, acqe_sli->event_data2, | |
4170 | evt_type); | |
4171 | ||
4172 | port_name = phba->Port[0]; | |
4173 | if (port_name == 0x00) | |
4174 | port_name = '?'; /* get port name is empty */ | |
4175 | ||
4176 | switch (evt_type) { | |
4177 | case LPFC_SLI_EVENT_TYPE_OVER_TEMP: | |
4178 | temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; | |
4179 | temp_event_data.event_code = LPFC_THRESHOLD_TEMP; | |
4180 | temp_event_data.data = (uint32_t)acqe_sli->event_data1; | |
4181 | ||
4182 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
4183 | "3190 Over Temperature:%d Celsius- Port Name %c\n", | |
4184 | acqe_sli->event_data1, port_name); | |
4185 | ||
4186 | phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; | |
4187 | shost = lpfc_shost_from_vport(phba->pport); | |
4188 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
4189 | sizeof(temp_event_data), | |
4190 | (char *)&temp_event_data, | |
4191 | SCSI_NL_VID_TYPE_PCI | |
4192 | | PCI_VENDOR_ID_EMULEX); | |
4193 | break; | |
4194 | case LPFC_SLI_EVENT_TYPE_NORM_TEMP: | |
4195 | temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; | |
4196 | temp_event_data.event_code = LPFC_NORMAL_TEMP; | |
4197 | temp_event_data.data = (uint32_t)acqe_sli->event_data1; | |
4198 | ||
4199 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
4200 | "3191 Normal Temperature:%d Celsius - Port Name %c\n", | |
4201 | acqe_sli->event_data1, port_name); | |
4202 | ||
4203 | shost = lpfc_shost_from_vport(phba->pport); | |
4204 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
4205 | sizeof(temp_event_data), | |
4206 | (char *)&temp_event_data, | |
4207 | SCSI_NL_VID_TYPE_PCI | |
4208 | | PCI_VENDOR_ID_EMULEX); | |
4209 | break; | |
4210 | case LPFC_SLI_EVENT_TYPE_MISCONFIGURED: | |
4211 | misconfigured = (struct lpfc_acqe_misconfigured_event *) | |
4212 | &acqe_sli->event_data1; | |
4213 | ||
4214 | /* fetch the status for this port */ | |
4215 | switch (phba->sli4_hba.lnk_info.lnk_no) { | |
4216 | case LPFC_LINK_NUMBER_0: | |
4217 | status = bf_get(lpfc_sli_misconfigured_port0_state, | |
4218 | &misconfigured->theEvent); | |
4219 | operational = bf_get(lpfc_sli_misconfigured_port0_op, | |
4220 | &misconfigured->theEvent); | |
4221 | break; | |
4222 | case LPFC_LINK_NUMBER_1: | |
4223 | status = bf_get(lpfc_sli_misconfigured_port1_state, | |
4224 | &misconfigured->theEvent); | |
4225 | operational = bf_get(lpfc_sli_misconfigured_port1_op, | |
4226 | &misconfigured->theEvent); | |
4227 | break; | |
4228 | case LPFC_LINK_NUMBER_2: | |
4229 | status = bf_get(lpfc_sli_misconfigured_port2_state, | |
4230 | &misconfigured->theEvent); | |
4231 | operational = bf_get(lpfc_sli_misconfigured_port2_op, | |
4232 | &misconfigured->theEvent); | |
4233 | break; | |
4234 | case LPFC_LINK_NUMBER_3: | |
4235 | status = bf_get(lpfc_sli_misconfigured_port3_state, | |
4236 | &misconfigured->theEvent); | |
4237 | operational = bf_get(lpfc_sli_misconfigured_port3_op, | |
4238 | &misconfigured->theEvent); | |
4239 | break; | |
4240 | default: | |
4241 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
4242 | "3296 " | |
4243 | "LPFC_SLI_EVENT_TYPE_MISCONFIGURED " | |
4244 | "event: Invalid link %d", | |
4245 | phba->sli4_hba.lnk_info.lnk_no); | |
4246 | return; | |
4247 | } | |
4248 | ||
4249 | /* Skip if optic state unchanged */ | |
4250 | if (phba->sli4_hba.lnk_info.optic_state == status) | |
4251 | return; | |
4252 | ||
4253 | switch (status) { | |
4254 | case LPFC_SLI_EVENT_STATUS_VALID: | |
4255 | sprintf(message, "Physical Link is functional"); | |
4256 | break; | |
4257 | case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: | |
4258 | sprintf(message, "Optics faulted/incorrectly " | |
4259 | "installed/not installed - Reseat optics, " | |
4260 | "if issue not resolved, replace."); | |
4261 | break; | |
4262 | case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: | |
4263 | sprintf(message, | |
4264 | "Optics of two types installed - Remove one " | |
4265 | "optic or install matching pair of optics."); | |
4266 | break; | |
4267 | case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: | |
4268 | sprintf(message, "Incompatible optics - Replace with " | |
4269 | "compatible optics for card to function."); | |
4270 | break; | |
4271 | case LPFC_SLI_EVENT_STATUS_UNQUALIFIED: | |
4272 | sprintf(message, "Unqualified optics - Replace with " | |
4273 | "Avago optics for Warranty and Technical " | |
4274 | "Support - Link is%s operational", | |
4275 | (operational) ? "" : " not"); | |
4276 | break; | |
4277 | case LPFC_SLI_EVENT_STATUS_UNCERTIFIED: | |
4278 | sprintf(message, "Uncertified optics - Replace with " | |
4279 | "Avago-certified optics to enable link " | |
4280 | "operation - Link is%s operational", | |
4281 | (operational) ? "" : " not"); | |
4282 | break; | |
4283 | default: | |
4284 | /* firmware is reporting a status we don't know about */ | |
4285 | sprintf(message, "Unknown event status x%02x", status); | |
4286 | break; | |
4287 | } | |
4288 | phba->sli4_hba.lnk_info.optic_state = status; | |
4289 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
4290 | "3176 Port Name %c %s\n", port_name, message); | |
4291 | break; | |
4292 | case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT: | |
4293 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
4294 | "3192 Remote DPort Test Initiated - " | |
4295 | "Event Data1:x%08x Event Data2: x%08x\n", | |
4296 | acqe_sli->event_data1, acqe_sli->event_data2); | |
4297 | break; | |
4298 | default: | |
4299 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
4300 | "3193 Async SLI event - Event Data1:x%08x Event Data2:" | |
4301 | "x%08x SLI Event Type:%d\n", | |
4302 | acqe_sli->event_data1, acqe_sli->event_data2, | |
4303 | evt_type); | |
4304 | break; | |
4305 | } | |
4306 | } | |
4307 | ||
4308 | /** | |
4309 | * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport | |
4310 | * @vport: pointer to vport data structure. | |
4311 | * | |
4312 | * This routine is to perform Clear Virtual Link (CVL) on a vport in | |
4313 | * response to a CVL event. | |
4314 | * | |
4315 | * Return the pointer to the ndlp with the vport if successful, otherwise | |
4316 | * return NULL. | |
4317 | **/ | |
4318 | static struct lpfc_nodelist * | |
4319 | lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) | |
4320 | { | |
4321 | struct lpfc_nodelist *ndlp; | |
4322 | struct Scsi_Host *shost; | |
4323 | struct lpfc_hba *phba; | |
4324 | ||
4325 | if (!vport) | |
4326 | return NULL; | |
4327 | phba = vport->phba; | |
4328 | if (!phba) | |
4329 | return NULL; | |
4330 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
4331 | if (!ndlp) { | |
4332 | /* Cannot find existing Fabric ndlp, so allocate a new one */ | |
4333 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
4334 | if (!ndlp) | |
4335 | return 0; | |
4336 | lpfc_nlp_init(vport, ndlp, Fabric_DID); | |
4337 | /* Set the node type */ | |
4338 | ndlp->nlp_type |= NLP_FABRIC; | |
4339 | /* Put ndlp onto node list */ | |
4340 | lpfc_enqueue_node(vport, ndlp); | |
4341 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
4342 | /* re-setup ndlp without removing from node list */ | |
4343 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
4344 | if (!ndlp) | |
4345 | return 0; | |
4346 | } | |
4347 | if ((phba->pport->port_state < LPFC_FLOGI) && | |
4348 | (phba->pport->port_state != LPFC_VPORT_FAILED)) | |
4349 | return NULL; | |
4350 | /* If virtual link is not yet instantiated ignore CVL */ | |
4351 | if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) | |
4352 | && (vport->port_state != LPFC_VPORT_FAILED)) | |
4353 | return NULL; | |
4354 | shost = lpfc_shost_from_vport(vport); | |
4355 | if (!shost) | |
4356 | return NULL; | |
4357 | lpfc_linkdown_port(vport); | |
4358 | lpfc_cleanup_pending_mbox(vport); | |
4359 | spin_lock_irq(shost->host_lock); | |
4360 | vport->fc_flag |= FC_VPORT_CVL_RCVD; | |
4361 | spin_unlock_irq(shost->host_lock); | |
4362 | ||
4363 | return ndlp; | |
4364 | } | |
4365 | ||
4366 | /** | |
4367 | * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports | |
4368 | * @vport: pointer to lpfc hba data structure. | |
4369 | * | |
4370 | * This routine is to perform Clear Virtual Link (CVL) on all vports in | |
4371 | * response to a FCF dead event. | |
4372 | **/ | |
4373 | static void | |
4374 | lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) | |
4375 | { | |
4376 | struct lpfc_vport **vports; | |
4377 | int i; | |
4378 | ||
4379 | vports = lpfc_create_vport_work_array(phba); | |
4380 | if (vports) | |
4381 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) | |
4382 | lpfc_sli4_perform_vport_cvl(vports[i]); | |
4383 | lpfc_destroy_vport_work_array(phba, vports); | |
4384 | } | |
4385 | ||
4386 | /** | |
4387 | * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event | |
4388 | * @phba: pointer to lpfc hba data structure. | |
4389 | * @acqe_link: pointer to the async fcoe completion queue entry. | |
4390 | * | |
4391 | * This routine is to handle the SLI4 asynchronous fcoe event. | |
4392 | **/ | |
4393 | static void | |
4394 | lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, | |
4395 | struct lpfc_acqe_fip *acqe_fip) | |
4396 | { | |
4397 | uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); | |
4398 | int rc; | |
4399 | struct lpfc_vport *vport; | |
4400 | struct lpfc_nodelist *ndlp; | |
4401 | struct Scsi_Host *shost; | |
4402 | int active_vlink_present; | |
4403 | struct lpfc_vport **vports; | |
4404 | int i; | |
4405 | ||
4406 | phba->fc_eventTag = acqe_fip->event_tag; | |
4407 | phba->fcoe_eventtag = acqe_fip->event_tag; | |
4408 | switch (event_type) { | |
4409 | case LPFC_FIP_EVENT_TYPE_NEW_FCF: | |
4410 | case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: | |
4411 | if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) | |
4412 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | | |
4413 | LOG_DISCOVERY, | |
4414 | "2546 New FCF event, evt_tag:x%x, " | |
4415 | "index:x%x\n", | |
4416 | acqe_fip->event_tag, | |
4417 | acqe_fip->index); | |
4418 | else | |
4419 | lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | | |
4420 | LOG_DISCOVERY, | |
4421 | "2788 FCF param modified event, " | |
4422 | "evt_tag:x%x, index:x%x\n", | |
4423 | acqe_fip->event_tag, | |
4424 | acqe_fip->index); | |
4425 | if (phba->fcf.fcf_flag & FCF_DISCOVERY) { | |
4426 | /* | |
4427 | * During period of FCF discovery, read the FCF | |
4428 | * table record indexed by the event to update | |
4429 | * FCF roundrobin failover eligible FCF bmask. | |
4430 | */ | |
4431 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP | | |
4432 | LOG_DISCOVERY, | |
4433 | "2779 Read FCF (x%x) for updating " | |
4434 | "roundrobin FCF failover bmask\n", | |
4435 | acqe_fip->index); | |
4436 | rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); | |
4437 | } | |
4438 | ||
4439 | /* If the FCF discovery is in progress, do nothing. */ | |
4440 | spin_lock_irq(&phba->hbalock); | |
4441 | if (phba->hba_flag & FCF_TS_INPROG) { | |
4442 | spin_unlock_irq(&phba->hbalock); | |
4443 | break; | |
4444 | } | |
4445 | /* If fast FCF failover rescan event is pending, do nothing */ | |
4446 | if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { | |
4447 | spin_unlock_irq(&phba->hbalock); | |
4448 | break; | |
4449 | } | |
4450 | ||
4451 | /* If the FCF has been in discovered state, do nothing. */ | |
4452 | if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { | |
4453 | spin_unlock_irq(&phba->hbalock); | |
4454 | break; | |
4455 | } | |
4456 | spin_unlock_irq(&phba->hbalock); | |
4457 | ||
4458 | /* Otherwise, scan the entire FCF table and re-discover SAN */ | |
4459 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, | |
4460 | "2770 Start FCF table scan per async FCF " | |
4461 | "event, evt_tag:x%x, index:x%x\n", | |
4462 | acqe_fip->event_tag, acqe_fip->index); | |
4463 | rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, | |
4464 | LPFC_FCOE_FCF_GET_FIRST); | |
4465 | if (rc) | |
4466 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, | |
4467 | "2547 Issue FCF scan read FCF mailbox " | |
4468 | "command failed (x%x)\n", rc); | |
4469 | break; | |
4470 | ||
4471 | case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: | |
4472 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
4473 | "2548 FCF Table full count 0x%x tag 0x%x\n", | |
4474 | bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), | |
4475 | acqe_fip->event_tag); | |
4476 | break; | |
4477 | ||
4478 | case LPFC_FIP_EVENT_TYPE_FCF_DEAD: | |
4479 | phba->fcoe_cvl_eventtag = acqe_fip->event_tag; | |
4480 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, | |
4481 | "2549 FCF (x%x) disconnected from network, " | |
4482 | "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); | |
4483 | /* | |
4484 | * If we are in the middle of FCF failover process, clear | |
4485 | * the corresponding FCF bit in the roundrobin bitmap. | |
4486 | */ | |
4487 | spin_lock_irq(&phba->hbalock); | |
4488 | if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && | |
4489 | (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) { | |
4490 | spin_unlock_irq(&phba->hbalock); | |
4491 | /* Update FLOGI FCF failover eligible FCF bmask */ | |
4492 | lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); | |
4493 | break; | |
4494 | } | |
4495 | spin_unlock_irq(&phba->hbalock); | |
4496 | ||
4497 | /* If the event is not for currently used fcf do nothing */ | |
4498 | if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) | |
4499 | break; | |
4500 | ||
4501 | /* | |
4502 | * Otherwise, request the port to rediscover the entire FCF | |
4503 | * table for a fast recovery from case that the current FCF | |
4504 | * is no longer valid as we are not in the middle of FCF | |
4505 | * failover process already. | |
4506 | */ | |
4507 | spin_lock_irq(&phba->hbalock); | |
4508 | /* Mark the fast failover process in progress */ | |
4509 | phba->fcf.fcf_flag |= FCF_DEAD_DISC; | |
4510 | spin_unlock_irq(&phba->hbalock); | |
4511 | ||
4512 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, | |
4513 | "2771 Start FCF fast failover process due to " | |
4514 | "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " | |
4515 | "\n", acqe_fip->event_tag, acqe_fip->index); | |
4516 | rc = lpfc_sli4_redisc_fcf_table(phba); | |
4517 | if (rc) { | |
4518 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | | |
4519 | LOG_DISCOVERY, | |
4520 | "2772 Issue FCF rediscover mabilbox " | |
4521 | "command failed, fail through to FCF " | |
4522 | "dead event\n"); | |
4523 | spin_lock_irq(&phba->hbalock); | |
4524 | phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; | |
4525 | spin_unlock_irq(&phba->hbalock); | |
4526 | /* | |
4527 | * Last resort will fail over by treating this | |
4528 | * as a link down to FCF registration. | |
4529 | */ | |
4530 | lpfc_sli4_fcf_dead_failthrough(phba); | |
4531 | } else { | |
4532 | /* Reset FCF roundrobin bmask for new discovery */ | |
4533 | lpfc_sli4_clear_fcf_rr_bmask(phba); | |
4534 | /* | |
4535 | * Handling fast FCF failover to a DEAD FCF event is | |
4536 | * considered equalivant to receiving CVL to all vports. | |
4537 | */ | |
4538 | lpfc_sli4_perform_all_vport_cvl(phba); | |
4539 | } | |
4540 | break; | |
4541 | case LPFC_FIP_EVENT_TYPE_CVL: | |
4542 | phba->fcoe_cvl_eventtag = acqe_fip->event_tag; | |
4543 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, | |
4544 | "2718 Clear Virtual Link Received for VPI 0x%x" | |
4545 | " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); | |
4546 | ||
4547 | vport = lpfc_find_vport_by_vpid(phba, | |
4548 | acqe_fip->index); | |
4549 | ndlp = lpfc_sli4_perform_vport_cvl(vport); | |
4550 | if (!ndlp) | |
4551 | break; | |
4552 | active_vlink_present = 0; | |
4553 | ||
4554 | vports = lpfc_create_vport_work_array(phba); | |
4555 | if (vports) { | |
4556 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; | |
4557 | i++) { | |
4558 | if ((!(vports[i]->fc_flag & | |
4559 | FC_VPORT_CVL_RCVD)) && | |
4560 | (vports[i]->port_state > LPFC_FDISC)) { | |
4561 | active_vlink_present = 1; | |
4562 | break; | |
4563 | } | |
4564 | } | |
4565 | lpfc_destroy_vport_work_array(phba, vports); | |
4566 | } | |
4567 | ||
4568 | /* | |
4569 | * Don't re-instantiate if vport is marked for deletion. | |
4570 | * If we are here first then vport_delete is going to wait | |
4571 | * for discovery to complete. | |
4572 | */ | |
4573 | if (!(vport->load_flag & FC_UNLOADING) && | |
4574 | active_vlink_present) { | |
4575 | /* | |
4576 | * If there are other active VLinks present, | |
4577 | * re-instantiate the Vlink using FDISC. | |
4578 | */ | |
4579 | mod_timer(&ndlp->nlp_delayfunc, | |
4580 | jiffies + msecs_to_jiffies(1000)); | |
4581 | shost = lpfc_shost_from_vport(vport); | |
4582 | spin_lock_irq(shost->host_lock); | |
4583 | ndlp->nlp_flag |= NLP_DELAY_TMO; | |
4584 | spin_unlock_irq(shost->host_lock); | |
4585 | ndlp->nlp_last_elscmd = ELS_CMD_FDISC; | |
4586 | vport->port_state = LPFC_FDISC; | |
4587 | } else { | |
4588 | /* | |
4589 | * Otherwise, we request port to rediscover | |
4590 | * the entire FCF table for a fast recovery | |
4591 | * from possible case that the current FCF | |
4592 | * is no longer valid if we are not already | |
4593 | * in the FCF failover process. | |
4594 | */ | |
4595 | spin_lock_irq(&phba->hbalock); | |
4596 | if (phba->fcf.fcf_flag & FCF_DISCOVERY) { | |
4597 | spin_unlock_irq(&phba->hbalock); | |
4598 | break; | |
4599 | } | |
4600 | /* Mark the fast failover process in progress */ | |
4601 | phba->fcf.fcf_flag |= FCF_ACVL_DISC; | |
4602 | spin_unlock_irq(&phba->hbalock); | |
4603 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP | | |
4604 | LOG_DISCOVERY, | |
4605 | "2773 Start FCF failover per CVL, " | |
4606 | "evt_tag:x%x\n", acqe_fip->event_tag); | |
4607 | rc = lpfc_sli4_redisc_fcf_table(phba); | |
4608 | if (rc) { | |
4609 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | | |
4610 | LOG_DISCOVERY, | |
4611 | "2774 Issue FCF rediscover " | |
4612 | "mabilbox command failed, " | |
4613 | "through to CVL event\n"); | |
4614 | spin_lock_irq(&phba->hbalock); | |
4615 | phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; | |
4616 | spin_unlock_irq(&phba->hbalock); | |
4617 | /* | |
4618 | * Last resort will be re-try on the | |
4619 | * the current registered FCF entry. | |
4620 | */ | |
4621 | lpfc_retry_pport_discovery(phba); | |
4622 | } else | |
4623 | /* | |
4624 | * Reset FCF roundrobin bmask for new | |
4625 | * discovery. | |
4626 | */ | |
4627 | lpfc_sli4_clear_fcf_rr_bmask(phba); | |
4628 | } | |
4629 | break; | |
4630 | default: | |
4631 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
4632 | "0288 Unknown FCoE event type 0x%x event tag " | |
4633 | "0x%x\n", event_type, acqe_fip->event_tag); | |
4634 | break; | |
4635 | } | |
4636 | } | |
4637 | ||
4638 | /** | |
4639 | * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event | |
4640 | * @phba: pointer to lpfc hba data structure. | |
4641 | * @acqe_link: pointer to the async dcbx completion queue entry. | |
4642 | * | |
4643 | * This routine is to handle the SLI4 asynchronous dcbx event. | |
4644 | **/ | |
4645 | static void | |
4646 | lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, | |
4647 | struct lpfc_acqe_dcbx *acqe_dcbx) | |
4648 | { | |
4649 | phba->fc_eventTag = acqe_dcbx->event_tag; | |
4650 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
4651 | "0290 The SLI4 DCBX asynchronous event is not " | |
4652 | "handled yet\n"); | |
4653 | } | |
4654 | ||
4655 | /** | |
4656 | * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event | |
4657 | * @phba: pointer to lpfc hba data structure. | |
4658 | * @acqe_link: pointer to the async grp5 completion queue entry. | |
4659 | * | |
4660 | * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event | |
4661 | * is an asynchronous notified of a logical link speed change. The Port | |
4662 | * reports the logical link speed in units of 10Mbps. | |
4663 | **/ | |
4664 | static void | |
4665 | lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, | |
4666 | struct lpfc_acqe_grp5 *acqe_grp5) | |
4667 | { | |
4668 | uint16_t prev_ll_spd; | |
4669 | ||
4670 | phba->fc_eventTag = acqe_grp5->event_tag; | |
4671 | phba->fcoe_eventtag = acqe_grp5->event_tag; | |
4672 | prev_ll_spd = phba->sli4_hba.link_state.logical_speed; | |
4673 | phba->sli4_hba.link_state.logical_speed = | |
4674 | (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; | |
4675 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
4676 | "2789 GRP5 Async Event: Updating logical link speed " | |
4677 | "from %dMbps to %dMbps\n", prev_ll_spd, | |
4678 | phba->sli4_hba.link_state.logical_speed); | |
4679 | } | |
4680 | ||
4681 | /** | |
4682 | * lpfc_sli4_async_event_proc - Process all the pending asynchronous event | |
4683 | * @phba: pointer to lpfc hba data structure. | |
4684 | * | |
4685 | * This routine is invoked by the worker thread to process all the pending | |
4686 | * SLI4 asynchronous events. | |
4687 | **/ | |
4688 | void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) | |
4689 | { | |
4690 | struct lpfc_cq_event *cq_event; | |
4691 | ||
4692 | /* First, declare the async event has been handled */ | |
4693 | spin_lock_irq(&phba->hbalock); | |
4694 | phba->hba_flag &= ~ASYNC_EVENT; | |
4695 | spin_unlock_irq(&phba->hbalock); | |
4696 | /* Now, handle all the async events */ | |
4697 | while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { | |
4698 | /* Get the first event from the head of the event queue */ | |
4699 | spin_lock_irq(&phba->hbalock); | |
4700 | list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, | |
4701 | cq_event, struct lpfc_cq_event, list); | |
4702 | spin_unlock_irq(&phba->hbalock); | |
4703 | /* Process the asynchronous event */ | |
4704 | switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { | |
4705 | case LPFC_TRAILER_CODE_LINK: | |
4706 | lpfc_sli4_async_link_evt(phba, | |
4707 | &cq_event->cqe.acqe_link); | |
4708 | break; | |
4709 | case LPFC_TRAILER_CODE_FCOE: | |
4710 | lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); | |
4711 | break; | |
4712 | case LPFC_TRAILER_CODE_DCBX: | |
4713 | lpfc_sli4_async_dcbx_evt(phba, | |
4714 | &cq_event->cqe.acqe_dcbx); | |
4715 | break; | |
4716 | case LPFC_TRAILER_CODE_GRP5: | |
4717 | lpfc_sli4_async_grp5_evt(phba, | |
4718 | &cq_event->cqe.acqe_grp5); | |
4719 | break; | |
4720 | case LPFC_TRAILER_CODE_FC: | |
4721 | lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); | |
4722 | break; | |
4723 | case LPFC_TRAILER_CODE_SLI: | |
4724 | lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); | |
4725 | break; | |
4726 | default: | |
4727 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
4728 | "1804 Invalid asynchrous event code: " | |
4729 | "x%x\n", bf_get(lpfc_trailer_code, | |
4730 | &cq_event->cqe.mcqe_cmpl)); | |
4731 | break; | |
4732 | } | |
4733 | /* Free the completion event processed to the free pool */ | |
4734 | lpfc_sli4_cq_event_release(phba, cq_event); | |
4735 | } | |
4736 | } | |
4737 | ||
4738 | /** | |
4739 | * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event | |
4740 | * @phba: pointer to lpfc hba data structure. | |
4741 | * | |
4742 | * This routine is invoked by the worker thread to process FCF table | |
4743 | * rediscovery pending completion event. | |
4744 | **/ | |
4745 | void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) | |
4746 | { | |
4747 | int rc; | |
4748 | ||
4749 | spin_lock_irq(&phba->hbalock); | |
4750 | /* Clear FCF rediscovery timeout event */ | |
4751 | phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; | |
4752 | /* Clear driver fast failover FCF record flag */ | |
4753 | phba->fcf.failover_rec.flag = 0; | |
4754 | /* Set state for FCF fast failover */ | |
4755 | phba->fcf.fcf_flag |= FCF_REDISC_FOV; | |
4756 | spin_unlock_irq(&phba->hbalock); | |
4757 | ||
4758 | /* Scan FCF table from the first entry to re-discover SAN */ | |
4759 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, | |
4760 | "2777 Start post-quiescent FCF table scan\n"); | |
4761 | rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); | |
4762 | if (rc) | |
4763 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, | |
4764 | "2747 Issue FCF scan read FCF mailbox " | |
4765 | "command failed 0x%x\n", rc); | |
4766 | } | |
4767 | ||
4768 | /** | |
4769 | * lpfc_api_table_setup - Set up per hba pci-device group func api jump table | |
4770 | * @phba: pointer to lpfc hba data structure. | |
4771 | * @dev_grp: The HBA PCI-Device group number. | |
4772 | * | |
4773 | * This routine is invoked to set up the per HBA PCI-Device group function | |
4774 | * API jump table entries. | |
4775 | * | |
4776 | * Return: 0 if success, otherwise -ENODEV | |
4777 | **/ | |
4778 | int | |
4779 | lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
4780 | { | |
4781 | int rc; | |
4782 | ||
4783 | /* Set up lpfc PCI-device group */ | |
4784 | phba->pci_dev_grp = dev_grp; | |
4785 | ||
4786 | /* The LPFC_PCI_DEV_OC uses SLI4 */ | |
4787 | if (dev_grp == LPFC_PCI_DEV_OC) | |
4788 | phba->sli_rev = LPFC_SLI_REV4; | |
4789 | ||
4790 | /* Set up device INIT API function jump table */ | |
4791 | rc = lpfc_init_api_table_setup(phba, dev_grp); | |
4792 | if (rc) | |
4793 | return -ENODEV; | |
4794 | /* Set up SCSI API function jump table */ | |
4795 | rc = lpfc_scsi_api_table_setup(phba, dev_grp); | |
4796 | if (rc) | |
4797 | return -ENODEV; | |
4798 | /* Set up SLI API function jump table */ | |
4799 | rc = lpfc_sli_api_table_setup(phba, dev_grp); | |
4800 | if (rc) | |
4801 | return -ENODEV; | |
4802 | /* Set up MBOX API function jump table */ | |
4803 | rc = lpfc_mbox_api_table_setup(phba, dev_grp); | |
4804 | if (rc) | |
4805 | return -ENODEV; | |
4806 | ||
4807 | return 0; | |
4808 | } | |
4809 | ||
4810 | /** | |
4811 | * lpfc_log_intr_mode - Log the active interrupt mode | |
4812 | * @phba: pointer to lpfc hba data structure. | |
4813 | * @intr_mode: active interrupt mode adopted. | |
4814 | * | |
4815 | * This routine it invoked to log the currently used active interrupt mode | |
4816 | * to the device. | |
4817 | **/ | |
4818 | static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) | |
4819 | { | |
4820 | switch (intr_mode) { | |
4821 | case 0: | |
4822 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
4823 | "0470 Enable INTx interrupt mode.\n"); | |
4824 | break; | |
4825 | case 1: | |
4826 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
4827 | "0481 Enabled MSI interrupt mode.\n"); | |
4828 | break; | |
4829 | case 2: | |
4830 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
4831 | "0480 Enabled MSI-X interrupt mode.\n"); | |
4832 | break; | |
4833 | default: | |
4834 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
4835 | "0482 Illegal interrupt mode.\n"); | |
4836 | break; | |
4837 | } | |
4838 | return; | |
4839 | } | |
4840 | ||
4841 | /** | |
4842 | * lpfc_enable_pci_dev - Enable a generic PCI device. | |
4843 | * @phba: pointer to lpfc hba data structure. | |
4844 | * | |
4845 | * This routine is invoked to enable the PCI device that is common to all | |
4846 | * PCI devices. | |
4847 | * | |
4848 | * Return codes | |
4849 | * 0 - successful | |
4850 | * other values - error | |
4851 | **/ | |
4852 | static int | |
4853 | lpfc_enable_pci_dev(struct lpfc_hba *phba) | |
4854 | { | |
4855 | struct pci_dev *pdev; | |
4856 | ||
4857 | /* Obtain PCI device reference */ | |
4858 | if (!phba->pcidev) | |
4859 | goto out_error; | |
4860 | else | |
4861 | pdev = phba->pcidev; | |
4862 | /* Enable PCI device */ | |
4863 | if (pci_enable_device_mem(pdev)) | |
4864 | goto out_error; | |
4865 | /* Request PCI resource for the device */ | |
4866 | if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME)) | |
4867 | goto out_disable_device; | |
4868 | /* Set up device as PCI master and save state for EEH */ | |
4869 | pci_set_master(pdev); | |
4870 | pci_try_set_mwi(pdev); | |
4871 | pci_save_state(pdev); | |
4872 | ||
4873 | /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ | |
4874 | if (pci_is_pcie(pdev)) | |
4875 | pdev->needs_freset = 1; | |
4876 | ||
4877 | return 0; | |
4878 | ||
4879 | out_disable_device: | |
4880 | pci_disable_device(pdev); | |
4881 | out_error: | |
4882 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
4883 | "1401 Failed to enable pci device\n"); | |
4884 | return -ENODEV; | |
4885 | } | |
4886 | ||
4887 | /** | |
4888 | * lpfc_disable_pci_dev - Disable a generic PCI device. | |
4889 | * @phba: pointer to lpfc hba data structure. | |
4890 | * | |
4891 | * This routine is invoked to disable the PCI device that is common to all | |
4892 | * PCI devices. | |
4893 | **/ | |
4894 | static void | |
4895 | lpfc_disable_pci_dev(struct lpfc_hba *phba) | |
4896 | { | |
4897 | struct pci_dev *pdev; | |
4898 | ||
4899 | /* Obtain PCI device reference */ | |
4900 | if (!phba->pcidev) | |
4901 | return; | |
4902 | else | |
4903 | pdev = phba->pcidev; | |
4904 | /* Release PCI resource and disable PCI device */ | |
4905 | pci_release_mem_regions(pdev); | |
4906 | pci_disable_device(pdev); | |
4907 | ||
4908 | return; | |
4909 | } | |
4910 | ||
4911 | /** | |
4912 | * lpfc_reset_hba - Reset a hba | |
4913 | * @phba: pointer to lpfc hba data structure. | |
4914 | * | |
4915 | * This routine is invoked to reset a hba device. It brings the HBA | |
4916 | * offline, performs a board restart, and then brings the board back | |
4917 | * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up | |
4918 | * on outstanding mailbox commands. | |
4919 | **/ | |
4920 | void | |
4921 | lpfc_reset_hba(struct lpfc_hba *phba) | |
4922 | { | |
4923 | /* If resets are disabled then set error state and return. */ | |
4924 | if (!phba->cfg_enable_hba_reset) { | |
4925 | phba->link_state = LPFC_HBA_ERROR; | |
4926 | return; | |
4927 | } | |
4928 | if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) | |
4929 | lpfc_offline_prep(phba, LPFC_MBX_WAIT); | |
4930 | else | |
4931 | lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); | |
4932 | lpfc_offline(phba); | |
4933 | lpfc_sli_brdrestart(phba); | |
4934 | lpfc_online(phba); | |
4935 | lpfc_unblock_mgmt_io(phba); | |
4936 | } | |
4937 | ||
4938 | /** | |
4939 | * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions | |
4940 | * @phba: pointer to lpfc hba data structure. | |
4941 | * | |
4942 | * This function enables the PCI SR-IOV virtual functions to a physical | |
4943 | * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to | |
4944 | * enable the number of virtual functions to the physical function. As | |
4945 | * not all devices support SR-IOV, the return code from the pci_enable_sriov() | |
4946 | * API call does not considered as an error condition for most of the device. | |
4947 | **/ | |
4948 | uint16_t | |
4949 | lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) | |
4950 | { | |
4951 | struct pci_dev *pdev = phba->pcidev; | |
4952 | uint16_t nr_virtfn; | |
4953 | int pos; | |
4954 | ||
4955 | pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); | |
4956 | if (pos == 0) | |
4957 | return 0; | |
4958 | ||
4959 | pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); | |
4960 | return nr_virtfn; | |
4961 | } | |
4962 | ||
4963 | /** | |
4964 | * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions | |
4965 | * @phba: pointer to lpfc hba data structure. | |
4966 | * @nr_vfn: number of virtual functions to be enabled. | |
4967 | * | |
4968 | * This function enables the PCI SR-IOV virtual functions to a physical | |
4969 | * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to | |
4970 | * enable the number of virtual functions to the physical function. As | |
4971 | * not all devices support SR-IOV, the return code from the pci_enable_sriov() | |
4972 | * API call does not considered as an error condition for most of the device. | |
4973 | **/ | |
4974 | int | |
4975 | lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) | |
4976 | { | |
4977 | struct pci_dev *pdev = phba->pcidev; | |
4978 | uint16_t max_nr_vfn; | |
4979 | int rc; | |
4980 | ||
4981 | max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); | |
4982 | if (nr_vfn > max_nr_vfn) { | |
4983 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
4984 | "3057 Requested vfs (%d) greater than " | |
4985 | "supported vfs (%d)", nr_vfn, max_nr_vfn); | |
4986 | return -EINVAL; | |
4987 | } | |
4988 | ||
4989 | rc = pci_enable_sriov(pdev, nr_vfn); | |
4990 | if (rc) { | |
4991 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
4992 | "2806 Failed to enable sriov on this device " | |
4993 | "with vfn number nr_vf:%d, rc:%d\n", | |
4994 | nr_vfn, rc); | |
4995 | } else | |
4996 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
4997 | "2807 Successful enable sriov on this device " | |
4998 | "with vfn number nr_vf:%d\n", nr_vfn); | |
4999 | return rc; | |
5000 | } | |
5001 | ||
5002 | /** | |
5003 | * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. | |
5004 | * @phba: pointer to lpfc hba data structure. | |
5005 | * | |
5006 | * This routine is invoked to set up the driver internal resources specific to | |
5007 | * support the SLI-3 HBA device it attached to. | |
5008 | * | |
5009 | * Return codes | |
5010 | * 0 - successful | |
5011 | * other values - error | |
5012 | **/ | |
5013 | static int | |
5014 | lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) | |
5015 | { | |
5016 | struct lpfc_sli *psli; | |
5017 | int rc; | |
5018 | ||
5019 | /* | |
5020 | * Initialize timers used by driver | |
5021 | */ | |
5022 | ||
5023 | /* Heartbeat timer */ | |
5024 | init_timer(&phba->hb_tmofunc); | |
5025 | phba->hb_tmofunc.function = lpfc_hb_timeout; | |
5026 | phba->hb_tmofunc.data = (unsigned long)phba; | |
5027 | ||
5028 | psli = &phba->sli; | |
5029 | /* MBOX heartbeat timer */ | |
5030 | init_timer(&psli->mbox_tmo); | |
5031 | psli->mbox_tmo.function = lpfc_mbox_timeout; | |
5032 | psli->mbox_tmo.data = (unsigned long) phba; | |
5033 | /* FCP polling mode timer */ | |
5034 | init_timer(&phba->fcp_poll_timer); | |
5035 | phba->fcp_poll_timer.function = lpfc_poll_timeout; | |
5036 | phba->fcp_poll_timer.data = (unsigned long) phba; | |
5037 | /* Fabric block timer */ | |
5038 | init_timer(&phba->fabric_block_timer); | |
5039 | phba->fabric_block_timer.function = lpfc_fabric_block_timeout; | |
5040 | phba->fabric_block_timer.data = (unsigned long) phba; | |
5041 | /* EA polling mode timer */ | |
5042 | init_timer(&phba->eratt_poll); | |
5043 | phba->eratt_poll.function = lpfc_poll_eratt; | |
5044 | phba->eratt_poll.data = (unsigned long) phba; | |
5045 | ||
5046 | /* Host attention work mask setup */ | |
5047 | phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); | |
5048 | phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); | |
5049 | ||
5050 | /* Get all the module params for configuring this host */ | |
5051 | lpfc_get_cfgparam(phba); | |
5052 | if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { | |
5053 | phba->menlo_flag |= HBA_MENLO_SUPPORT; | |
5054 | /* check for menlo minimum sg count */ | |
5055 | if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) | |
5056 | phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; | |
5057 | } | |
5058 | ||
5059 | if (!phba->sli.ring) | |
5060 | phba->sli.ring = kzalloc(LPFC_SLI3_MAX_RING * | |
5061 | sizeof(struct lpfc_sli_ring), GFP_KERNEL); | |
5062 | if (!phba->sli.ring) | |
5063 | return -ENOMEM; | |
5064 | ||
5065 | /* | |
5066 | * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size | |
5067 | * used to create the sg_dma_buf_pool must be dynamically calculated. | |
5068 | */ | |
5069 | ||
5070 | /* Initialize the host templates the configured values. */ | |
5071 | lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; | |
5072 | lpfc_template_s3.sg_tablesize = phba->cfg_sg_seg_cnt; | |
5073 | ||
5074 | /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ | |
5075 | if (phba->cfg_enable_bg) { | |
5076 | /* | |
5077 | * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, | |
5078 | * the FCP rsp, and a BDE for each. Sice we have no control | |
5079 | * over how many protection data segments the SCSI Layer | |
5080 | * will hand us (ie: there could be one for every block | |
5081 | * in the IO), we just allocate enough BDEs to accomidate | |
5082 | * our max amount and we need to limit lpfc_sg_seg_cnt to | |
5083 | * minimize the risk of running out. | |
5084 | */ | |
5085 | phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + | |
5086 | sizeof(struct fcp_rsp) + | |
5087 | (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64)); | |
5088 | ||
5089 | if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF) | |
5090 | phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF; | |
5091 | ||
5092 | /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */ | |
5093 | phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT; | |
5094 | } else { | |
5095 | /* | |
5096 | * The scsi_buf for a regular I/O will hold the FCP cmnd, | |
5097 | * the FCP rsp, a BDE for each, and a BDE for up to | |
5098 | * cfg_sg_seg_cnt data segments. | |
5099 | */ | |
5100 | phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + | |
5101 | sizeof(struct fcp_rsp) + | |
5102 | ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); | |
5103 | ||
5104 | /* Total BDEs in BPL for scsi_sg_list */ | |
5105 | phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; | |
5106 | } | |
5107 | ||
5108 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, | |
5109 | "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n", | |
5110 | phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, | |
5111 | phba->cfg_total_seg_cnt); | |
5112 | ||
5113 | phba->max_vpi = LPFC_MAX_VPI; | |
5114 | /* This will be set to correct value after config_port mbox */ | |
5115 | phba->max_vports = 0; | |
5116 | ||
5117 | /* | |
5118 | * Initialize the SLI Layer to run with lpfc HBAs. | |
5119 | */ | |
5120 | lpfc_sli_setup(phba); | |
5121 | lpfc_sli_queue_setup(phba); | |
5122 | ||
5123 | /* Allocate device driver memory */ | |
5124 | if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) | |
5125 | return -ENOMEM; | |
5126 | ||
5127 | /* | |
5128 | * Enable sr-iov virtual functions if supported and configured | |
5129 | * through the module parameter. | |
5130 | */ | |
5131 | if (phba->cfg_sriov_nr_virtfn > 0) { | |
5132 | rc = lpfc_sli_probe_sriov_nr_virtfn(phba, | |
5133 | phba->cfg_sriov_nr_virtfn); | |
5134 | if (rc) { | |
5135 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
5136 | "2808 Requested number of SR-IOV " | |
5137 | "virtual functions (%d) is not " | |
5138 | "supported\n", | |
5139 | phba->cfg_sriov_nr_virtfn); | |
5140 | phba->cfg_sriov_nr_virtfn = 0; | |
5141 | } | |
5142 | } | |
5143 | ||
5144 | return 0; | |
5145 | } | |
5146 | ||
5147 | /** | |
5148 | * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev | |
5149 | * @phba: pointer to lpfc hba data structure. | |
5150 | * | |
5151 | * This routine is invoked to unset the driver internal resources set up | |
5152 | * specific for supporting the SLI-3 HBA device it attached to. | |
5153 | **/ | |
5154 | static void | |
5155 | lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) | |
5156 | { | |
5157 | /* Free device driver memory allocated */ | |
5158 | lpfc_mem_free_all(phba); | |
5159 | ||
5160 | return; | |
5161 | } | |
5162 | ||
5163 | /** | |
5164 | * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev | |
5165 | * @phba: pointer to lpfc hba data structure. | |
5166 | * | |
5167 | * This routine is invoked to set up the driver internal resources specific to | |
5168 | * support the SLI-4 HBA device it attached to. | |
5169 | * | |
5170 | * Return codes | |
5171 | * 0 - successful | |
5172 | * other values - error | |
5173 | **/ | |
5174 | static int | |
5175 | lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) | |
5176 | { | |
5177 | struct lpfc_vector_map_info *cpup; | |
5178 | struct lpfc_sli *psli; | |
5179 | LPFC_MBOXQ_t *mboxq; | |
5180 | int rc, i, hbq_count, max_buf_size; | |
5181 | uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; | |
5182 | struct lpfc_mqe *mqe; | |
5183 | int longs; | |
5184 | int fof_vectors = 0; | |
5185 | ||
5186 | /* Get all the module params for configuring this host */ | |
5187 | lpfc_get_cfgparam(phba); | |
5188 | ||
5189 | /* Before proceed, wait for POST done and device ready */ | |
5190 | rc = lpfc_sli4_post_status_check(phba); | |
5191 | if (rc) | |
5192 | return -ENODEV; | |
5193 | ||
5194 | /* | |
5195 | * Initialize timers used by driver | |
5196 | */ | |
5197 | ||
5198 | /* Heartbeat timer */ | |
5199 | init_timer(&phba->hb_tmofunc); | |
5200 | phba->hb_tmofunc.function = lpfc_hb_timeout; | |
5201 | phba->hb_tmofunc.data = (unsigned long)phba; | |
5202 | init_timer(&phba->rrq_tmr); | |
5203 | phba->rrq_tmr.function = lpfc_rrq_timeout; | |
5204 | phba->rrq_tmr.data = (unsigned long)phba; | |
5205 | ||
5206 | psli = &phba->sli; | |
5207 | /* MBOX heartbeat timer */ | |
5208 | init_timer(&psli->mbox_tmo); | |
5209 | psli->mbox_tmo.function = lpfc_mbox_timeout; | |
5210 | psli->mbox_tmo.data = (unsigned long) phba; | |
5211 | /* Fabric block timer */ | |
5212 | init_timer(&phba->fabric_block_timer); | |
5213 | phba->fabric_block_timer.function = lpfc_fabric_block_timeout; | |
5214 | phba->fabric_block_timer.data = (unsigned long) phba; | |
5215 | /* EA polling mode timer */ | |
5216 | init_timer(&phba->eratt_poll); | |
5217 | phba->eratt_poll.function = lpfc_poll_eratt; | |
5218 | phba->eratt_poll.data = (unsigned long) phba; | |
5219 | /* FCF rediscover timer */ | |
5220 | init_timer(&phba->fcf.redisc_wait); | |
5221 | phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; | |
5222 | phba->fcf.redisc_wait.data = (unsigned long)phba; | |
5223 | ||
5224 | /* | |
5225 | * Control structure for handling external multi-buffer mailbox | |
5226 | * command pass-through. | |
5227 | */ | |
5228 | memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, | |
5229 | sizeof(struct lpfc_mbox_ext_buf_ctx)); | |
5230 | INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); | |
5231 | ||
5232 | phba->max_vpi = LPFC_MAX_VPI; | |
5233 | ||
5234 | /* This will be set to correct value after the read_config mbox */ | |
5235 | phba->max_vports = 0; | |
5236 | ||
5237 | /* Program the default value of vlan_id and fc_map */ | |
5238 | phba->valid_vlan = 0; | |
5239 | phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; | |
5240 | phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; | |
5241 | phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; | |
5242 | ||
5243 | /* | |
5244 | * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands | |
5245 | * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple. | |
5246 | */ | |
5247 | if (!phba->sli.ring) | |
5248 | phba->sli.ring = kzalloc( | |
5249 | (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) * | |
5250 | sizeof(struct lpfc_sli_ring), GFP_KERNEL); | |
5251 | if (!phba->sli.ring) | |
5252 | return -ENOMEM; | |
5253 | ||
5254 | /* | |
5255 | * It doesn't matter what family our adapter is in, we are | |
5256 | * limited to 2 Pages, 512 SGEs, for our SGL. | |
5257 | * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp | |
5258 | */ | |
5259 | max_buf_size = (2 * SLI4_PAGE_SIZE); | |
5260 | if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2) | |
5261 | phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2; | |
5262 | ||
5263 | /* | |
5264 | * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size | |
5265 | * used to create the sg_dma_buf_pool must be dynamically calculated. | |
5266 | */ | |
5267 | ||
5268 | if (phba->cfg_enable_bg) { | |
5269 | /* | |
5270 | * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, | |
5271 | * the FCP rsp, and a SGE for each. Sice we have no control | |
5272 | * over how many protection data segments the SCSI Layer | |
5273 | * will hand us (ie: there could be one for every block | |
5274 | * in the IO), we just allocate enough SGEs to accomidate | |
5275 | * our max amount and we need to limit lpfc_sg_seg_cnt to | |
5276 | * minimize the risk of running out. | |
5277 | */ | |
5278 | phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + | |
5279 | sizeof(struct fcp_rsp) + max_buf_size; | |
5280 | ||
5281 | /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ | |
5282 | phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; | |
5283 | ||
5284 | if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF) | |
5285 | phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF; | |
5286 | } else { | |
5287 | /* | |
5288 | * The scsi_buf for a regular I/O will hold the FCP cmnd, | |
5289 | * the FCP rsp, a SGE for each, and a SGE for up to | |
5290 | * cfg_sg_seg_cnt data segments. | |
5291 | */ | |
5292 | phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + | |
5293 | sizeof(struct fcp_rsp) + | |
5294 | ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)); | |
5295 | ||
5296 | /* Total SGEs for scsi_sg_list */ | |
5297 | phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; | |
5298 | /* | |
5299 | * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need | |
5300 | * to post 1 page for the SGL. | |
5301 | */ | |
5302 | } | |
5303 | ||
5304 | /* Initialize the host templates with the updated values. */ | |
5305 | lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; | |
5306 | lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; | |
5307 | ||
5308 | if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) | |
5309 | phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; | |
5310 | else | |
5311 | phba->cfg_sg_dma_buf_size = | |
5312 | SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); | |
5313 | ||
5314 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, | |
5315 | "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n", | |
5316 | phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, | |
5317 | phba->cfg_total_seg_cnt); | |
5318 | ||
5319 | /* Initialize buffer queue management fields */ | |
5320 | hbq_count = lpfc_sli_hbq_count(); | |
5321 | for (i = 0; i < hbq_count; ++i) | |
5322 | INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); | |
5323 | INIT_LIST_HEAD(&phba->rb_pend_list); | |
5324 | phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; | |
5325 | phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; | |
5326 | ||
5327 | /* | |
5328 | * Initialize the SLI Layer to run with lpfc SLI4 HBAs. | |
5329 | */ | |
5330 | /* Initialize the Abort scsi buffer list used by driver */ | |
5331 | spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
5332 | INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); | |
5333 | /* This abort list used by worker thread */ | |
5334 | spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); | |
5335 | ||
5336 | /* | |
5337 | * Initialize driver internal slow-path work queues | |
5338 | */ | |
5339 | ||
5340 | /* Driver internel slow-path CQ Event pool */ | |
5341 | INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); | |
5342 | /* Response IOCB work queue list */ | |
5343 | INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); | |
5344 | /* Asynchronous event CQ Event work queue list */ | |
5345 | INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); | |
5346 | /* Fast-path XRI aborted CQ Event work queue list */ | |
5347 | INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); | |
5348 | /* Slow-path XRI aborted CQ Event work queue list */ | |
5349 | INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); | |
5350 | /* Receive queue CQ Event work queue list */ | |
5351 | INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); | |
5352 | ||
5353 | /* Initialize extent block lists. */ | |
5354 | INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); | |
5355 | INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); | |
5356 | INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); | |
5357 | INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); | |
5358 | ||
5359 | /* initialize optic_state to 0xFF */ | |
5360 | phba->sli4_hba.lnk_info.optic_state = 0xff; | |
5361 | ||
5362 | /* Initialize the driver internal SLI layer lists. */ | |
5363 | lpfc_sli_setup(phba); | |
5364 | lpfc_sli_queue_setup(phba); | |
5365 | ||
5366 | /* Allocate device driver memory */ | |
5367 | rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); | |
5368 | if (rc) | |
5369 | return -ENOMEM; | |
5370 | ||
5371 | /* IF Type 2 ports get initialized now. */ | |
5372 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == | |
5373 | LPFC_SLI_INTF_IF_TYPE_2) { | |
5374 | rc = lpfc_pci_function_reset(phba); | |
5375 | if (unlikely(rc)) | |
5376 | return -ENODEV; | |
5377 | phba->temp_sensor_support = 1; | |
5378 | } | |
5379 | ||
5380 | /* Create the bootstrap mailbox command */ | |
5381 | rc = lpfc_create_bootstrap_mbox(phba); | |
5382 | if (unlikely(rc)) | |
5383 | goto out_free_mem; | |
5384 | ||
5385 | /* Set up the host's endian order with the device. */ | |
5386 | rc = lpfc_setup_endian_order(phba); | |
5387 | if (unlikely(rc)) | |
5388 | goto out_free_bsmbx; | |
5389 | ||
5390 | /* Set up the hba's configuration parameters. */ | |
5391 | rc = lpfc_sli4_read_config(phba); | |
5392 | if (unlikely(rc)) | |
5393 | goto out_free_bsmbx; | |
5394 | rc = lpfc_mem_alloc_active_rrq_pool_s4(phba); | |
5395 | if (unlikely(rc)) | |
5396 | goto out_free_bsmbx; | |
5397 | ||
5398 | /* IF Type 0 ports get initialized now. */ | |
5399 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == | |
5400 | LPFC_SLI_INTF_IF_TYPE_0) { | |
5401 | rc = lpfc_pci_function_reset(phba); | |
5402 | if (unlikely(rc)) | |
5403 | goto out_free_bsmbx; | |
5404 | } | |
5405 | ||
5406 | mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, | |
5407 | GFP_KERNEL); | |
5408 | if (!mboxq) { | |
5409 | rc = -ENOMEM; | |
5410 | goto out_free_bsmbx; | |
5411 | } | |
5412 | ||
5413 | /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ | |
5414 | lpfc_supported_pages(mboxq); | |
5415 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
5416 | if (!rc) { | |
5417 | mqe = &mboxq->u.mqe; | |
5418 | memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), | |
5419 | LPFC_MAX_SUPPORTED_PAGES); | |
5420 | for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { | |
5421 | switch (pn_page[i]) { | |
5422 | case LPFC_SLI4_PARAMETERS: | |
5423 | phba->sli4_hba.pc_sli4_params.supported = 1; | |
5424 | break; | |
5425 | default: | |
5426 | break; | |
5427 | } | |
5428 | } | |
5429 | /* Read the port's SLI4 Parameters capabilities if supported. */ | |
5430 | if (phba->sli4_hba.pc_sli4_params.supported) | |
5431 | rc = lpfc_pc_sli4_params_get(phba, mboxq); | |
5432 | if (rc) { | |
5433 | mempool_free(mboxq, phba->mbox_mem_pool); | |
5434 | rc = -EIO; | |
5435 | goto out_free_bsmbx; | |
5436 | } | |
5437 | } | |
5438 | ||
5439 | /* | |
5440 | * Get sli4 parameters that override parameters from Port capabilities. | |
5441 | * If this call fails, it isn't critical unless the SLI4 parameters come | |
5442 | * back in conflict. | |
5443 | */ | |
5444 | rc = lpfc_get_sli4_parameters(phba, mboxq); | |
5445 | if (rc) { | |
5446 | if (phba->sli4_hba.extents_in_use && | |
5447 | phba->sli4_hba.rpi_hdrs_in_use) { | |
5448 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5449 | "2999 Unsupported SLI4 Parameters " | |
5450 | "Extents and RPI headers enabled.\n"); | |
5451 | goto out_free_bsmbx; | |
5452 | } | |
5453 | } | |
5454 | mempool_free(mboxq, phba->mbox_mem_pool); | |
5455 | ||
5456 | /* Verify OAS is supported */ | |
5457 | lpfc_sli4_oas_verify(phba); | |
5458 | if (phba->cfg_fof) | |
5459 | fof_vectors = 1; | |
5460 | ||
5461 | /* Verify all the SLI4 queues */ | |
5462 | rc = lpfc_sli4_queue_verify(phba); | |
5463 | if (rc) | |
5464 | goto out_free_bsmbx; | |
5465 | ||
5466 | /* Create driver internal CQE event pool */ | |
5467 | rc = lpfc_sli4_cq_event_pool_create(phba); | |
5468 | if (rc) | |
5469 | goto out_free_bsmbx; | |
5470 | ||
5471 | /* Initialize sgl lists per host */ | |
5472 | lpfc_init_sgl_list(phba); | |
5473 | ||
5474 | /* Allocate and initialize active sgl array */ | |
5475 | rc = lpfc_init_active_sgl_array(phba); | |
5476 | if (rc) { | |
5477 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5478 | "1430 Failed to initialize sgl list.\n"); | |
5479 | goto out_destroy_cq_event_pool; | |
5480 | } | |
5481 | rc = lpfc_sli4_init_rpi_hdrs(phba); | |
5482 | if (rc) { | |
5483 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5484 | "1432 Failed to initialize rpi headers.\n"); | |
5485 | goto out_free_active_sgl; | |
5486 | } | |
5487 | ||
5488 | /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ | |
5489 | longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; | |
5490 | phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), | |
5491 | GFP_KERNEL); | |
5492 | if (!phba->fcf.fcf_rr_bmask) { | |
5493 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5494 | "2759 Failed allocate memory for FCF round " | |
5495 | "robin failover bmask\n"); | |
5496 | rc = -ENOMEM; | |
5497 | goto out_remove_rpi_hdrs; | |
5498 | } | |
5499 | ||
5500 | phba->sli4_hba.fcp_eq_hdl = | |
5501 | kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * | |
5502 | (fof_vectors + phba->cfg_fcp_io_channel)), | |
5503 | GFP_KERNEL); | |
5504 | if (!phba->sli4_hba.fcp_eq_hdl) { | |
5505 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5506 | "2572 Failed allocate memory for " | |
5507 | "fast-path per-EQ handle array\n"); | |
5508 | rc = -ENOMEM; | |
5509 | goto out_free_fcf_rr_bmask; | |
5510 | } | |
5511 | ||
5512 | phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) * | |
5513 | phba->sli4_hba.num_present_cpu), | |
5514 | GFP_KERNEL); | |
5515 | if (!phba->sli4_hba.cpu_map) { | |
5516 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5517 | "3327 Failed allocate memory for msi-x " | |
5518 | "interrupt vector mapping\n"); | |
5519 | rc = -ENOMEM; | |
5520 | goto out_free_fcp_eq_hdl; | |
5521 | } | |
5522 | if (lpfc_used_cpu == NULL) { | |
5523 | lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu), | |
5524 | GFP_KERNEL); | |
5525 | if (!lpfc_used_cpu) { | |
5526 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5527 | "3335 Failed allocate memory for msi-x " | |
5528 | "interrupt vector mapping\n"); | |
5529 | kfree(phba->sli4_hba.cpu_map); | |
5530 | rc = -ENOMEM; | |
5531 | goto out_free_fcp_eq_hdl; | |
5532 | } | |
5533 | for (i = 0; i < lpfc_present_cpu; i++) | |
5534 | lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY; | |
5535 | } | |
5536 | ||
5537 | /* Initialize io channels for round robin */ | |
5538 | cpup = phba->sli4_hba.cpu_map; | |
5539 | rc = 0; | |
5540 | for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { | |
5541 | cpup->channel_id = rc; | |
5542 | rc++; | |
5543 | if (rc >= phba->cfg_fcp_io_channel) | |
5544 | rc = 0; | |
5545 | } | |
5546 | ||
5547 | /* | |
5548 | * Enable sr-iov virtual functions if supported and configured | |
5549 | * through the module parameter. | |
5550 | */ | |
5551 | if (phba->cfg_sriov_nr_virtfn > 0) { | |
5552 | rc = lpfc_sli_probe_sriov_nr_virtfn(phba, | |
5553 | phba->cfg_sriov_nr_virtfn); | |
5554 | if (rc) { | |
5555 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
5556 | "3020 Requested number of SR-IOV " | |
5557 | "virtual functions (%d) is not " | |
5558 | "supported\n", | |
5559 | phba->cfg_sriov_nr_virtfn); | |
5560 | phba->cfg_sriov_nr_virtfn = 0; | |
5561 | } | |
5562 | } | |
5563 | ||
5564 | return 0; | |
5565 | ||
5566 | out_free_fcp_eq_hdl: | |
5567 | kfree(phba->sli4_hba.fcp_eq_hdl); | |
5568 | out_free_fcf_rr_bmask: | |
5569 | kfree(phba->fcf.fcf_rr_bmask); | |
5570 | out_remove_rpi_hdrs: | |
5571 | lpfc_sli4_remove_rpi_hdrs(phba); | |
5572 | out_free_active_sgl: | |
5573 | lpfc_free_active_sgl(phba); | |
5574 | out_destroy_cq_event_pool: | |
5575 | lpfc_sli4_cq_event_pool_destroy(phba); | |
5576 | out_free_bsmbx: | |
5577 | lpfc_destroy_bootstrap_mbox(phba); | |
5578 | out_free_mem: | |
5579 | lpfc_mem_free(phba); | |
5580 | return rc; | |
5581 | } | |
5582 | ||
5583 | /** | |
5584 | * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev | |
5585 | * @phba: pointer to lpfc hba data structure. | |
5586 | * | |
5587 | * This routine is invoked to unset the driver internal resources set up | |
5588 | * specific for supporting the SLI-4 HBA device it attached to. | |
5589 | **/ | |
5590 | static void | |
5591 | lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) | |
5592 | { | |
5593 | struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; | |
5594 | ||
5595 | /* Free memory allocated for msi-x interrupt vector to CPU mapping */ | |
5596 | kfree(phba->sli4_hba.cpu_map); | |
5597 | phba->sli4_hba.num_present_cpu = 0; | |
5598 | phba->sli4_hba.num_online_cpu = 0; | |
5599 | phba->sli4_hba.curr_disp_cpu = 0; | |
5600 | ||
5601 | /* Free memory allocated for fast-path work queue handles */ | |
5602 | kfree(phba->sli4_hba.fcp_eq_hdl); | |
5603 | ||
5604 | /* Free the allocated rpi headers. */ | |
5605 | lpfc_sli4_remove_rpi_hdrs(phba); | |
5606 | lpfc_sli4_remove_rpis(phba); | |
5607 | ||
5608 | /* Free eligible FCF index bmask */ | |
5609 | kfree(phba->fcf.fcf_rr_bmask); | |
5610 | ||
5611 | /* Free the ELS sgl list */ | |
5612 | lpfc_free_active_sgl(phba); | |
5613 | lpfc_free_els_sgl_list(phba); | |
5614 | ||
5615 | /* Free the completion queue EQ event pool */ | |
5616 | lpfc_sli4_cq_event_release_all(phba); | |
5617 | lpfc_sli4_cq_event_pool_destroy(phba); | |
5618 | ||
5619 | /* Release resource identifiers. */ | |
5620 | lpfc_sli4_dealloc_resource_identifiers(phba); | |
5621 | ||
5622 | /* Free the bsmbx region. */ | |
5623 | lpfc_destroy_bootstrap_mbox(phba); | |
5624 | ||
5625 | /* Free the SLI Layer memory with SLI4 HBAs */ | |
5626 | lpfc_mem_free_all(phba); | |
5627 | ||
5628 | /* Free the current connect table */ | |
5629 | list_for_each_entry_safe(conn_entry, next_conn_entry, | |
5630 | &phba->fcf_conn_rec_list, list) { | |
5631 | list_del_init(&conn_entry->list); | |
5632 | kfree(conn_entry); | |
5633 | } | |
5634 | ||
5635 | return; | |
5636 | } | |
5637 | ||
5638 | /** | |
5639 | * lpfc_init_api_table_setup - Set up init api function jump table | |
5640 | * @phba: The hba struct for which this call is being executed. | |
5641 | * @dev_grp: The HBA PCI-Device group number. | |
5642 | * | |
5643 | * This routine sets up the device INIT interface API function jump table | |
5644 | * in @phba struct. | |
5645 | * | |
5646 | * Returns: 0 - success, -ENODEV - failure. | |
5647 | **/ | |
5648 | int | |
5649 | lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
5650 | { | |
5651 | phba->lpfc_hba_init_link = lpfc_hba_init_link; | |
5652 | phba->lpfc_hba_down_link = lpfc_hba_down_link; | |
5653 | phba->lpfc_selective_reset = lpfc_selective_reset; | |
5654 | switch (dev_grp) { | |
5655 | case LPFC_PCI_DEV_LP: | |
5656 | phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; | |
5657 | phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; | |
5658 | phba->lpfc_stop_port = lpfc_stop_port_s3; | |
5659 | break; | |
5660 | case LPFC_PCI_DEV_OC: | |
5661 | phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; | |
5662 | phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; | |
5663 | phba->lpfc_stop_port = lpfc_stop_port_s4; | |
5664 | break; | |
5665 | default: | |
5666 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5667 | "1431 Invalid HBA PCI-device group: 0x%x\n", | |
5668 | dev_grp); | |
5669 | return -ENODEV; | |
5670 | break; | |
5671 | } | |
5672 | return 0; | |
5673 | } | |
5674 | ||
5675 | /** | |
5676 | * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. | |
5677 | * @phba: pointer to lpfc hba data structure. | |
5678 | * | |
5679 | * This routine is invoked to set up the driver internal resources before the | |
5680 | * device specific resource setup to support the HBA device it attached to. | |
5681 | * | |
5682 | * Return codes | |
5683 | * 0 - successful | |
5684 | * other values - error | |
5685 | **/ | |
5686 | static int | |
5687 | lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) | |
5688 | { | |
5689 | /* | |
5690 | * Driver resources common to all SLI revisions | |
5691 | */ | |
5692 | atomic_set(&phba->fast_event_count, 0); | |
5693 | spin_lock_init(&phba->hbalock); | |
5694 | ||
5695 | /* Initialize ndlp management spinlock */ | |
5696 | spin_lock_init(&phba->ndlp_lock); | |
5697 | ||
5698 | INIT_LIST_HEAD(&phba->port_list); | |
5699 | INIT_LIST_HEAD(&phba->work_list); | |
5700 | init_waitqueue_head(&phba->wait_4_mlo_m_q); | |
5701 | ||
5702 | /* Initialize the wait queue head for the kernel thread */ | |
5703 | init_waitqueue_head(&phba->work_waitq); | |
5704 | ||
5705 | /* Initialize the scsi buffer list used by driver for scsi IO */ | |
5706 | spin_lock_init(&phba->scsi_buf_list_get_lock); | |
5707 | INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); | |
5708 | spin_lock_init(&phba->scsi_buf_list_put_lock); | |
5709 | INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); | |
5710 | ||
5711 | /* Initialize the fabric iocb list */ | |
5712 | INIT_LIST_HEAD(&phba->fabric_iocb_list); | |
5713 | ||
5714 | /* Initialize list to save ELS buffers */ | |
5715 | INIT_LIST_HEAD(&phba->elsbuf); | |
5716 | ||
5717 | /* Initialize FCF connection rec list */ | |
5718 | INIT_LIST_HEAD(&phba->fcf_conn_rec_list); | |
5719 | ||
5720 | /* Initialize OAS configuration list */ | |
5721 | spin_lock_init(&phba->devicelock); | |
5722 | INIT_LIST_HEAD(&phba->luns); | |
5723 | ||
5724 | return 0; | |
5725 | } | |
5726 | ||
5727 | /** | |
5728 | * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. | |
5729 | * @phba: pointer to lpfc hba data structure. | |
5730 | * | |
5731 | * This routine is invoked to set up the driver internal resources after the | |
5732 | * device specific resource setup to support the HBA device it attached to. | |
5733 | * | |
5734 | * Return codes | |
5735 | * 0 - successful | |
5736 | * other values - error | |
5737 | **/ | |
5738 | static int | |
5739 | lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) | |
5740 | { | |
5741 | int error; | |
5742 | ||
5743 | /* Startup the kernel thread for this host adapter. */ | |
5744 | phba->worker_thread = kthread_run(lpfc_do_work, phba, | |
5745 | "lpfc_worker_%d", phba->brd_no); | |
5746 | if (IS_ERR(phba->worker_thread)) { | |
5747 | error = PTR_ERR(phba->worker_thread); | |
5748 | return error; | |
5749 | } | |
5750 | ||
5751 | return 0; | |
5752 | } | |
5753 | ||
5754 | /** | |
5755 | * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. | |
5756 | * @phba: pointer to lpfc hba data structure. | |
5757 | * | |
5758 | * This routine is invoked to unset the driver internal resources set up after | |
5759 | * the device specific resource setup for supporting the HBA device it | |
5760 | * attached to. | |
5761 | **/ | |
5762 | static void | |
5763 | lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) | |
5764 | { | |
5765 | /* Stop kernel worker thread */ | |
5766 | kthread_stop(phba->worker_thread); | |
5767 | } | |
5768 | ||
5769 | /** | |
5770 | * lpfc_free_iocb_list - Free iocb list. | |
5771 | * @phba: pointer to lpfc hba data structure. | |
5772 | * | |
5773 | * This routine is invoked to free the driver's IOCB list and memory. | |
5774 | **/ | |
5775 | static void | |
5776 | lpfc_free_iocb_list(struct lpfc_hba *phba) | |
5777 | { | |
5778 | struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; | |
5779 | ||
5780 | spin_lock_irq(&phba->hbalock); | |
5781 | list_for_each_entry_safe(iocbq_entry, iocbq_next, | |
5782 | &phba->lpfc_iocb_list, list) { | |
5783 | list_del(&iocbq_entry->list); | |
5784 | kfree(iocbq_entry); | |
5785 | phba->total_iocbq_bufs--; | |
5786 | } | |
5787 | spin_unlock_irq(&phba->hbalock); | |
5788 | ||
5789 | return; | |
5790 | } | |
5791 | ||
5792 | /** | |
5793 | * lpfc_init_iocb_list - Allocate and initialize iocb list. | |
5794 | * @phba: pointer to lpfc hba data structure. | |
5795 | * | |
5796 | * This routine is invoked to allocate and initizlize the driver's IOCB | |
5797 | * list and set up the IOCB tag array accordingly. | |
5798 | * | |
5799 | * Return codes | |
5800 | * 0 - successful | |
5801 | * other values - error | |
5802 | **/ | |
5803 | static int | |
5804 | lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) | |
5805 | { | |
5806 | struct lpfc_iocbq *iocbq_entry = NULL; | |
5807 | uint16_t iotag; | |
5808 | int i; | |
5809 | ||
5810 | /* Initialize and populate the iocb list per host. */ | |
5811 | INIT_LIST_HEAD(&phba->lpfc_iocb_list); | |
5812 | for (i = 0; i < iocb_count; i++) { | |
5813 | iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); | |
5814 | if (iocbq_entry == NULL) { | |
5815 | printk(KERN_ERR "%s: only allocated %d iocbs of " | |
5816 | "expected %d count. Unloading driver.\n", | |
5817 | __func__, i, LPFC_IOCB_LIST_CNT); | |
5818 | goto out_free_iocbq; | |
5819 | } | |
5820 | ||
5821 | iotag = lpfc_sli_next_iotag(phba, iocbq_entry); | |
5822 | if (iotag == 0) { | |
5823 | kfree(iocbq_entry); | |
5824 | printk(KERN_ERR "%s: failed to allocate IOTAG. " | |
5825 | "Unloading driver.\n", __func__); | |
5826 | goto out_free_iocbq; | |
5827 | } | |
5828 | iocbq_entry->sli4_lxritag = NO_XRI; | |
5829 | iocbq_entry->sli4_xritag = NO_XRI; | |
5830 | ||
5831 | spin_lock_irq(&phba->hbalock); | |
5832 | list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); | |
5833 | phba->total_iocbq_bufs++; | |
5834 | spin_unlock_irq(&phba->hbalock); | |
5835 | } | |
5836 | ||
5837 | return 0; | |
5838 | ||
5839 | out_free_iocbq: | |
5840 | lpfc_free_iocb_list(phba); | |
5841 | ||
5842 | return -ENOMEM; | |
5843 | } | |
5844 | ||
5845 | /** | |
5846 | * lpfc_free_sgl_list - Free a given sgl list. | |
5847 | * @phba: pointer to lpfc hba data structure. | |
5848 | * @sglq_list: pointer to the head of sgl list. | |
5849 | * | |
5850 | * This routine is invoked to free a give sgl list and memory. | |
5851 | **/ | |
5852 | void | |
5853 | lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) | |
5854 | { | |
5855 | struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; | |
5856 | ||
5857 | list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { | |
5858 | list_del(&sglq_entry->list); | |
5859 | lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); | |
5860 | kfree(sglq_entry); | |
5861 | } | |
5862 | } | |
5863 | ||
5864 | /** | |
5865 | * lpfc_free_els_sgl_list - Free els sgl list. | |
5866 | * @phba: pointer to lpfc hba data structure. | |
5867 | * | |
5868 | * This routine is invoked to free the driver's els sgl list and memory. | |
5869 | **/ | |
5870 | static void | |
5871 | lpfc_free_els_sgl_list(struct lpfc_hba *phba) | |
5872 | { | |
5873 | LIST_HEAD(sglq_list); | |
5874 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
5875 | ||
5876 | /* Retrieve all els sgls from driver list */ | |
5877 | spin_lock_irq(&phba->hbalock); | |
5878 | spin_lock(&pring->ring_lock); | |
5879 | list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); | |
5880 | spin_unlock(&pring->ring_lock); | |
5881 | spin_unlock_irq(&phba->hbalock); | |
5882 | ||
5883 | /* Now free the sgl list */ | |
5884 | lpfc_free_sgl_list(phba, &sglq_list); | |
5885 | } | |
5886 | ||
5887 | /** | |
5888 | * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. | |
5889 | * @phba: pointer to lpfc hba data structure. | |
5890 | * | |
5891 | * This routine is invoked to allocate the driver's active sgl memory. | |
5892 | * This array will hold the sglq_entry's for active IOs. | |
5893 | **/ | |
5894 | static int | |
5895 | lpfc_init_active_sgl_array(struct lpfc_hba *phba) | |
5896 | { | |
5897 | int size; | |
5898 | size = sizeof(struct lpfc_sglq *); | |
5899 | size *= phba->sli4_hba.max_cfg_param.max_xri; | |
5900 | ||
5901 | phba->sli4_hba.lpfc_sglq_active_list = | |
5902 | kzalloc(size, GFP_KERNEL); | |
5903 | if (!phba->sli4_hba.lpfc_sglq_active_list) | |
5904 | return -ENOMEM; | |
5905 | return 0; | |
5906 | } | |
5907 | ||
5908 | /** | |
5909 | * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. | |
5910 | * @phba: pointer to lpfc hba data structure. | |
5911 | * | |
5912 | * This routine is invoked to walk through the array of active sglq entries | |
5913 | * and free all of the resources. | |
5914 | * This is just a place holder for now. | |
5915 | **/ | |
5916 | static void | |
5917 | lpfc_free_active_sgl(struct lpfc_hba *phba) | |
5918 | { | |
5919 | kfree(phba->sli4_hba.lpfc_sglq_active_list); | |
5920 | } | |
5921 | ||
5922 | /** | |
5923 | * lpfc_init_sgl_list - Allocate and initialize sgl list. | |
5924 | * @phba: pointer to lpfc hba data structure. | |
5925 | * | |
5926 | * This routine is invoked to allocate and initizlize the driver's sgl | |
5927 | * list and set up the sgl xritag tag array accordingly. | |
5928 | * | |
5929 | **/ | |
5930 | static void | |
5931 | lpfc_init_sgl_list(struct lpfc_hba *phba) | |
5932 | { | |
5933 | /* Initialize and populate the sglq list per host/VF. */ | |
5934 | INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); | |
5935 | INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); | |
5936 | ||
5937 | /* els xri-sgl book keeping */ | |
5938 | phba->sli4_hba.els_xri_cnt = 0; | |
5939 | ||
5940 | /* scsi xri-buffer book keeping */ | |
5941 | phba->sli4_hba.scsi_xri_cnt = 0; | |
5942 | } | |
5943 | ||
5944 | /** | |
5945 | * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port | |
5946 | * @phba: pointer to lpfc hba data structure. | |
5947 | * | |
5948 | * This routine is invoked to post rpi header templates to the | |
5949 | * port for those SLI4 ports that do not support extents. This routine | |
5950 | * posts a PAGE_SIZE memory region to the port to hold up to | |
5951 | * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine | |
5952 | * and should be called only when interrupts are disabled. | |
5953 | * | |
5954 | * Return codes | |
5955 | * 0 - successful | |
5956 | * -ERROR - otherwise. | |
5957 | **/ | |
5958 | int | |
5959 | lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) | |
5960 | { | |
5961 | int rc = 0; | |
5962 | struct lpfc_rpi_hdr *rpi_hdr; | |
5963 | ||
5964 | INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); | |
5965 | if (!phba->sli4_hba.rpi_hdrs_in_use) | |
5966 | return rc; | |
5967 | if (phba->sli4_hba.extents_in_use) | |
5968 | return -EIO; | |
5969 | ||
5970 | rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); | |
5971 | if (!rpi_hdr) { | |
5972 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5973 | "0391 Error during rpi post operation\n"); | |
5974 | lpfc_sli4_remove_rpis(phba); | |
5975 | rc = -ENODEV; | |
5976 | } | |
5977 | ||
5978 | return rc; | |
5979 | } | |
5980 | ||
5981 | /** | |
5982 | * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region | |
5983 | * @phba: pointer to lpfc hba data structure. | |
5984 | * | |
5985 | * This routine is invoked to allocate a single 4KB memory region to | |
5986 | * support rpis and stores them in the phba. This single region | |
5987 | * provides support for up to 64 rpis. The region is used globally | |
5988 | * by the device. | |
5989 | * | |
5990 | * Returns: | |
5991 | * A valid rpi hdr on success. | |
5992 | * A NULL pointer on any failure. | |
5993 | **/ | |
5994 | struct lpfc_rpi_hdr * | |
5995 | lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) | |
5996 | { | |
5997 | uint16_t rpi_limit, curr_rpi_range; | |
5998 | struct lpfc_dmabuf *dmabuf; | |
5999 | struct lpfc_rpi_hdr *rpi_hdr; | |
6000 | uint32_t rpi_count; | |
6001 | ||
6002 | /* | |
6003 | * If the SLI4 port supports extents, posting the rpi header isn't | |
6004 | * required. Set the expected maximum count and let the actual value | |
6005 | * get set when extents are fully allocated. | |
6006 | */ | |
6007 | if (!phba->sli4_hba.rpi_hdrs_in_use) | |
6008 | return NULL; | |
6009 | if (phba->sli4_hba.extents_in_use) | |
6010 | return NULL; | |
6011 | ||
6012 | /* The limit on the logical index is just the max_rpi count. */ | |
6013 | rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + | |
6014 | phba->sli4_hba.max_cfg_param.max_rpi - 1; | |
6015 | ||
6016 | spin_lock_irq(&phba->hbalock); | |
6017 | /* | |
6018 | * Establish the starting RPI in this header block. The starting | |
6019 | * rpi is normalized to a zero base because the physical rpi is | |
6020 | * port based. | |
6021 | */ | |
6022 | curr_rpi_range = phba->sli4_hba.next_rpi; | |
6023 | spin_unlock_irq(&phba->hbalock); | |
6024 | ||
6025 | /* | |
6026 | * The port has a limited number of rpis. The increment here | |
6027 | * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value | |
6028 | * and to allow the full max_rpi range per port. | |
6029 | */ | |
6030 | if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) | |
6031 | rpi_count = rpi_limit - curr_rpi_range; | |
6032 | else | |
6033 | rpi_count = LPFC_RPI_HDR_COUNT; | |
6034 | ||
6035 | if (!rpi_count) | |
6036 | return NULL; | |
6037 | /* | |
6038 | * First allocate the protocol header region for the port. The | |
6039 | * port expects a 4KB DMA-mapped memory region that is 4K aligned. | |
6040 | */ | |
6041 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
6042 | if (!dmabuf) | |
6043 | return NULL; | |
6044 | ||
6045 | dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, | |
6046 | LPFC_HDR_TEMPLATE_SIZE, | |
6047 | &dmabuf->phys, GFP_KERNEL); | |
6048 | if (!dmabuf->virt) { | |
6049 | rpi_hdr = NULL; | |
6050 | goto err_free_dmabuf; | |
6051 | } | |
6052 | ||
6053 | if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { | |
6054 | rpi_hdr = NULL; | |
6055 | goto err_free_coherent; | |
6056 | } | |
6057 | ||
6058 | /* Save the rpi header data for cleanup later. */ | |
6059 | rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); | |
6060 | if (!rpi_hdr) | |
6061 | goto err_free_coherent; | |
6062 | ||
6063 | rpi_hdr->dmabuf = dmabuf; | |
6064 | rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; | |
6065 | rpi_hdr->page_count = 1; | |
6066 | spin_lock_irq(&phba->hbalock); | |
6067 | ||
6068 | /* The rpi_hdr stores the logical index only. */ | |
6069 | rpi_hdr->start_rpi = curr_rpi_range; | |
6070 | list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); | |
6071 | ||
6072 | /* | |
6073 | * The next_rpi stores the next logical module-64 rpi value used | |
6074 | * to post physical rpis in subsequent rpi postings. | |
6075 | */ | |
6076 | phba->sli4_hba.next_rpi += rpi_count; | |
6077 | spin_unlock_irq(&phba->hbalock); | |
6078 | return rpi_hdr; | |
6079 | ||
6080 | err_free_coherent: | |
6081 | dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, | |
6082 | dmabuf->virt, dmabuf->phys); | |
6083 | err_free_dmabuf: | |
6084 | kfree(dmabuf); | |
6085 | return NULL; | |
6086 | } | |
6087 | ||
6088 | /** | |
6089 | * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions | |
6090 | * @phba: pointer to lpfc hba data structure. | |
6091 | * | |
6092 | * This routine is invoked to remove all memory resources allocated | |
6093 | * to support rpis for SLI4 ports not supporting extents. This routine | |
6094 | * presumes the caller has released all rpis consumed by fabric or port | |
6095 | * logins and is prepared to have the header pages removed. | |
6096 | **/ | |
6097 | void | |
6098 | lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) | |
6099 | { | |
6100 | struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; | |
6101 | ||
6102 | if (!phba->sli4_hba.rpi_hdrs_in_use) | |
6103 | goto exit; | |
6104 | ||
6105 | list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, | |
6106 | &phba->sli4_hba.lpfc_rpi_hdr_list, list) { | |
6107 | list_del(&rpi_hdr->list); | |
6108 | dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, | |
6109 | rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); | |
6110 | kfree(rpi_hdr->dmabuf); | |
6111 | kfree(rpi_hdr); | |
6112 | } | |
6113 | exit: | |
6114 | /* There are no rpis available to the port now. */ | |
6115 | phba->sli4_hba.next_rpi = 0; | |
6116 | } | |
6117 | ||
6118 | /** | |
6119 | * lpfc_hba_alloc - Allocate driver hba data structure for a device. | |
6120 | * @pdev: pointer to pci device data structure. | |
6121 | * | |
6122 | * This routine is invoked to allocate the driver hba data structure for an | |
6123 | * HBA device. If the allocation is successful, the phba reference to the | |
6124 | * PCI device data structure is set. | |
6125 | * | |
6126 | * Return codes | |
6127 | * pointer to @phba - successful | |
6128 | * NULL - error | |
6129 | **/ | |
6130 | static struct lpfc_hba * | |
6131 | lpfc_hba_alloc(struct pci_dev *pdev) | |
6132 | { | |
6133 | struct lpfc_hba *phba; | |
6134 | ||
6135 | /* Allocate memory for HBA structure */ | |
6136 | phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); | |
6137 | if (!phba) { | |
6138 | dev_err(&pdev->dev, "failed to allocate hba struct\n"); | |
6139 | return NULL; | |
6140 | } | |
6141 | ||
6142 | /* Set reference to PCI device in HBA structure */ | |
6143 | phba->pcidev = pdev; | |
6144 | ||
6145 | /* Assign an unused board number */ | |
6146 | phba->brd_no = lpfc_get_instance(); | |
6147 | if (phba->brd_no < 0) { | |
6148 | kfree(phba); | |
6149 | return NULL; | |
6150 | } | |
6151 | phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL; | |
6152 | ||
6153 | spin_lock_init(&phba->ct_ev_lock); | |
6154 | INIT_LIST_HEAD(&phba->ct_ev_waiters); | |
6155 | ||
6156 | return phba; | |
6157 | } | |
6158 | ||
6159 | /** | |
6160 | * lpfc_hba_free - Free driver hba data structure with a device. | |
6161 | * @phba: pointer to lpfc hba data structure. | |
6162 | * | |
6163 | * This routine is invoked to free the driver hba data structure with an | |
6164 | * HBA device. | |
6165 | **/ | |
6166 | static void | |
6167 | lpfc_hba_free(struct lpfc_hba *phba) | |
6168 | { | |
6169 | /* Release the driver assigned board number */ | |
6170 | idr_remove(&lpfc_hba_index, phba->brd_no); | |
6171 | ||
6172 | /* Free memory allocated with sli rings */ | |
6173 | kfree(phba->sli.ring); | |
6174 | phba->sli.ring = NULL; | |
6175 | ||
6176 | kfree(phba); | |
6177 | return; | |
6178 | } | |
6179 | ||
6180 | /** | |
6181 | * lpfc_create_shost - Create hba physical port with associated scsi host. | |
6182 | * @phba: pointer to lpfc hba data structure. | |
6183 | * | |
6184 | * This routine is invoked to create HBA physical port and associate a SCSI | |
6185 | * host with it. | |
6186 | * | |
6187 | * Return codes | |
6188 | * 0 - successful | |
6189 | * other values - error | |
6190 | **/ | |
6191 | static int | |
6192 | lpfc_create_shost(struct lpfc_hba *phba) | |
6193 | { | |
6194 | struct lpfc_vport *vport; | |
6195 | struct Scsi_Host *shost; | |
6196 | ||
6197 | /* Initialize HBA FC structure */ | |
6198 | phba->fc_edtov = FF_DEF_EDTOV; | |
6199 | phba->fc_ratov = FF_DEF_RATOV; | |
6200 | phba->fc_altov = FF_DEF_ALTOV; | |
6201 | phba->fc_arbtov = FF_DEF_ARBTOV; | |
6202 | ||
6203 | atomic_set(&phba->sdev_cnt, 0); | |
6204 | vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); | |
6205 | if (!vport) | |
6206 | return -ENODEV; | |
6207 | ||
6208 | shost = lpfc_shost_from_vport(vport); | |
6209 | phba->pport = vport; | |
6210 | lpfc_debugfs_initialize(vport); | |
6211 | /* Put reference to SCSI host to driver's device private data */ | |
6212 | pci_set_drvdata(phba->pcidev, shost); | |
6213 | ||
6214 | /* | |
6215 | * At this point we are fully registered with PSA. In addition, | |
6216 | * any initial discovery should be completed. | |
6217 | */ | |
6218 | vport->load_flag |= FC_ALLOW_FDMI; | |
6219 | if (phba->cfg_enable_SmartSAN || | |
6220 | (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { | |
6221 | ||
6222 | /* Setup appropriate attribute masks */ | |
6223 | vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR; | |
6224 | if (phba->cfg_enable_SmartSAN) | |
6225 | vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR; | |
6226 | else | |
6227 | vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR; | |
6228 | } | |
6229 | return 0; | |
6230 | } | |
6231 | ||
6232 | /** | |
6233 | * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. | |
6234 | * @phba: pointer to lpfc hba data structure. | |
6235 | * | |
6236 | * This routine is invoked to destroy HBA physical port and the associated | |
6237 | * SCSI host. | |
6238 | **/ | |
6239 | static void | |
6240 | lpfc_destroy_shost(struct lpfc_hba *phba) | |
6241 | { | |
6242 | struct lpfc_vport *vport = phba->pport; | |
6243 | ||
6244 | /* Destroy physical port that associated with the SCSI host */ | |
6245 | destroy_port(vport); | |
6246 | ||
6247 | return; | |
6248 | } | |
6249 | ||
6250 | /** | |
6251 | * lpfc_setup_bg - Setup Block guard structures and debug areas. | |
6252 | * @phba: pointer to lpfc hba data structure. | |
6253 | * @shost: the shost to be used to detect Block guard settings. | |
6254 | * | |
6255 | * This routine sets up the local Block guard protocol settings for @shost. | |
6256 | * This routine also allocates memory for debugging bg buffers. | |
6257 | **/ | |
6258 | static void | |
6259 | lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) | |
6260 | { | |
6261 | uint32_t old_mask; | |
6262 | uint32_t old_guard; | |
6263 | ||
6264 | int pagecnt = 10; | |
6265 | if (phba->cfg_prot_mask && phba->cfg_prot_guard) { | |
6266 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
6267 | "1478 Registering BlockGuard with the " | |
6268 | "SCSI layer\n"); | |
6269 | ||
6270 | old_mask = phba->cfg_prot_mask; | |
6271 | old_guard = phba->cfg_prot_guard; | |
6272 | ||
6273 | /* Only allow supported values */ | |
6274 | phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | | |
6275 | SHOST_DIX_TYPE0_PROTECTION | | |
6276 | SHOST_DIX_TYPE1_PROTECTION); | |
6277 | phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP | | |
6278 | SHOST_DIX_GUARD_CRC); | |
6279 | ||
6280 | /* DIF Type 1 protection for profiles AST1/C1 is end to end */ | |
6281 | if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION) | |
6282 | phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; | |
6283 | ||
6284 | if (phba->cfg_prot_mask && phba->cfg_prot_guard) { | |
6285 | if ((old_mask != phba->cfg_prot_mask) || | |
6286 | (old_guard != phba->cfg_prot_guard)) | |
6287 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6288 | "1475 Registering BlockGuard with the " | |
6289 | "SCSI layer: mask %d guard %d\n", | |
6290 | phba->cfg_prot_mask, | |
6291 | phba->cfg_prot_guard); | |
6292 | ||
6293 | scsi_host_set_prot(shost, phba->cfg_prot_mask); | |
6294 | scsi_host_set_guard(shost, phba->cfg_prot_guard); | |
6295 | } else | |
6296 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6297 | "1479 Not Registering BlockGuard with the SCSI " | |
6298 | "layer, Bad protection parameters: %d %d\n", | |
6299 | old_mask, old_guard); | |
6300 | } | |
6301 | ||
6302 | if (!_dump_buf_data) { | |
6303 | while (pagecnt) { | |
6304 | spin_lock_init(&_dump_buf_lock); | |
6305 | _dump_buf_data = | |
6306 | (char *) __get_free_pages(GFP_KERNEL, pagecnt); | |
6307 | if (_dump_buf_data) { | |
6308 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
6309 | "9043 BLKGRD: allocated %d pages for " | |
6310 | "_dump_buf_data at 0x%p\n", | |
6311 | (1 << pagecnt), _dump_buf_data); | |
6312 | _dump_buf_data_order = pagecnt; | |
6313 | memset(_dump_buf_data, 0, | |
6314 | ((1 << PAGE_SHIFT) << pagecnt)); | |
6315 | break; | |
6316 | } else | |
6317 | --pagecnt; | |
6318 | } | |
6319 | if (!_dump_buf_data_order) | |
6320 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
6321 | "9044 BLKGRD: ERROR unable to allocate " | |
6322 | "memory for hexdump\n"); | |
6323 | } else | |
6324 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
6325 | "9045 BLKGRD: already allocated _dump_buf_data=0x%p" | |
6326 | "\n", _dump_buf_data); | |
6327 | if (!_dump_buf_dif) { | |
6328 | while (pagecnt) { | |
6329 | _dump_buf_dif = | |
6330 | (char *) __get_free_pages(GFP_KERNEL, pagecnt); | |
6331 | if (_dump_buf_dif) { | |
6332 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
6333 | "9046 BLKGRD: allocated %d pages for " | |
6334 | "_dump_buf_dif at 0x%p\n", | |
6335 | (1 << pagecnt), _dump_buf_dif); | |
6336 | _dump_buf_dif_order = pagecnt; | |
6337 | memset(_dump_buf_dif, 0, | |
6338 | ((1 << PAGE_SHIFT) << pagecnt)); | |
6339 | break; | |
6340 | } else | |
6341 | --pagecnt; | |
6342 | } | |
6343 | if (!_dump_buf_dif_order) | |
6344 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
6345 | "9047 BLKGRD: ERROR unable to allocate " | |
6346 | "memory for hexdump\n"); | |
6347 | } else | |
6348 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
6349 | "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", | |
6350 | _dump_buf_dif); | |
6351 | } | |
6352 | ||
6353 | /** | |
6354 | * lpfc_post_init_setup - Perform necessary device post initialization setup. | |
6355 | * @phba: pointer to lpfc hba data structure. | |
6356 | * | |
6357 | * This routine is invoked to perform all the necessary post initialization | |
6358 | * setup for the device. | |
6359 | **/ | |
6360 | static void | |
6361 | lpfc_post_init_setup(struct lpfc_hba *phba) | |
6362 | { | |
6363 | struct Scsi_Host *shost; | |
6364 | struct lpfc_adapter_event_header adapter_event; | |
6365 | ||
6366 | /* Get the default values for Model Name and Description */ | |
6367 | lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); | |
6368 | ||
6369 | /* | |
6370 | * hba setup may have changed the hba_queue_depth so we need to | |
6371 | * adjust the value of can_queue. | |
6372 | */ | |
6373 | shost = pci_get_drvdata(phba->pcidev); | |
6374 | shost->can_queue = phba->cfg_hba_queue_depth - 10; | |
6375 | if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) | |
6376 | lpfc_setup_bg(phba, shost); | |
6377 | ||
6378 | lpfc_host_attrib_init(shost); | |
6379 | ||
6380 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
6381 | spin_lock_irq(shost->host_lock); | |
6382 | lpfc_poll_start_timer(phba); | |
6383 | spin_unlock_irq(shost->host_lock); | |
6384 | } | |
6385 | ||
6386 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
6387 | "0428 Perform SCSI scan\n"); | |
6388 | /* Send board arrival event to upper layer */ | |
6389 | adapter_event.event_type = FC_REG_ADAPTER_EVENT; | |
6390 | adapter_event.subcategory = LPFC_EVENT_ARRIVAL; | |
6391 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
6392 | sizeof(adapter_event), | |
6393 | (char *) &adapter_event, | |
6394 | LPFC_NL_VENDOR_ID); | |
6395 | return; | |
6396 | } | |
6397 | ||
6398 | /** | |
6399 | * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. | |
6400 | * @phba: pointer to lpfc hba data structure. | |
6401 | * | |
6402 | * This routine is invoked to set up the PCI device memory space for device | |
6403 | * with SLI-3 interface spec. | |
6404 | * | |
6405 | * Return codes | |
6406 | * 0 - successful | |
6407 | * other values - error | |
6408 | **/ | |
6409 | static int | |
6410 | lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) | |
6411 | { | |
6412 | struct pci_dev *pdev; | |
6413 | unsigned long bar0map_len, bar2map_len; | |
6414 | int i, hbq_count; | |
6415 | void *ptr; | |
6416 | int error = -ENODEV; | |
6417 | ||
6418 | /* Obtain PCI device reference */ | |
6419 | if (!phba->pcidev) | |
6420 | return error; | |
6421 | else | |
6422 | pdev = phba->pcidev; | |
6423 | ||
6424 | /* Set the device DMA mask size */ | |
6425 | if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 | |
6426 | || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { | |
6427 | if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 | |
6428 | || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { | |
6429 | return error; | |
6430 | } | |
6431 | } | |
6432 | ||
6433 | /* Get the bus address of Bar0 and Bar2 and the number of bytes | |
6434 | * required by each mapping. | |
6435 | */ | |
6436 | phba->pci_bar0_map = pci_resource_start(pdev, 0); | |
6437 | bar0map_len = pci_resource_len(pdev, 0); | |
6438 | ||
6439 | phba->pci_bar2_map = pci_resource_start(pdev, 2); | |
6440 | bar2map_len = pci_resource_len(pdev, 2); | |
6441 | ||
6442 | /* Map HBA SLIM to a kernel virtual address. */ | |
6443 | phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); | |
6444 | if (!phba->slim_memmap_p) { | |
6445 | dev_printk(KERN_ERR, &pdev->dev, | |
6446 | "ioremap failed for SLIM memory.\n"); | |
6447 | goto out; | |
6448 | } | |
6449 | ||
6450 | /* Map HBA Control Registers to a kernel virtual address. */ | |
6451 | phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); | |
6452 | if (!phba->ctrl_regs_memmap_p) { | |
6453 | dev_printk(KERN_ERR, &pdev->dev, | |
6454 | "ioremap failed for HBA control registers.\n"); | |
6455 | goto out_iounmap_slim; | |
6456 | } | |
6457 | ||
6458 | /* Allocate memory for SLI-2 structures */ | |
6459 | phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE, | |
6460 | &phba->slim2p.phys, GFP_KERNEL); | |
6461 | if (!phba->slim2p.virt) | |
6462 | goto out_iounmap; | |
6463 | ||
6464 | phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); | |
6465 | phba->mbox_ext = (phba->slim2p.virt + | |
6466 | offsetof(struct lpfc_sli2_slim, mbx_ext_words)); | |
6467 | phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); | |
6468 | phba->IOCBs = (phba->slim2p.virt + | |
6469 | offsetof(struct lpfc_sli2_slim, IOCBs)); | |
6470 | ||
6471 | phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, | |
6472 | lpfc_sli_hbq_size(), | |
6473 | &phba->hbqslimp.phys, | |
6474 | GFP_KERNEL); | |
6475 | if (!phba->hbqslimp.virt) | |
6476 | goto out_free_slim; | |
6477 | ||
6478 | hbq_count = lpfc_sli_hbq_count(); | |
6479 | ptr = phba->hbqslimp.virt; | |
6480 | for (i = 0; i < hbq_count; ++i) { | |
6481 | phba->hbqs[i].hbq_virt = ptr; | |
6482 | INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); | |
6483 | ptr += (lpfc_hbq_defs[i]->entry_count * | |
6484 | sizeof(struct lpfc_hbq_entry)); | |
6485 | } | |
6486 | phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; | |
6487 | phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; | |
6488 | ||
6489 | memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); | |
6490 | ||
6491 | INIT_LIST_HEAD(&phba->rb_pend_list); | |
6492 | ||
6493 | phba->MBslimaddr = phba->slim_memmap_p; | |
6494 | phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; | |
6495 | phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; | |
6496 | phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; | |
6497 | phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; | |
6498 | ||
6499 | return 0; | |
6500 | ||
6501 | out_free_slim: | |
6502 | dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, | |
6503 | phba->slim2p.virt, phba->slim2p.phys); | |
6504 | out_iounmap: | |
6505 | iounmap(phba->ctrl_regs_memmap_p); | |
6506 | out_iounmap_slim: | |
6507 | iounmap(phba->slim_memmap_p); | |
6508 | out: | |
6509 | return error; | |
6510 | } | |
6511 | ||
6512 | /** | |
6513 | * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. | |
6514 | * @phba: pointer to lpfc hba data structure. | |
6515 | * | |
6516 | * This routine is invoked to unset the PCI device memory space for device | |
6517 | * with SLI-3 interface spec. | |
6518 | **/ | |
6519 | static void | |
6520 | lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) | |
6521 | { | |
6522 | struct pci_dev *pdev; | |
6523 | ||
6524 | /* Obtain PCI device reference */ | |
6525 | if (!phba->pcidev) | |
6526 | return; | |
6527 | else | |
6528 | pdev = phba->pcidev; | |
6529 | ||
6530 | /* Free coherent DMA memory allocated */ | |
6531 | dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), | |
6532 | phba->hbqslimp.virt, phba->hbqslimp.phys); | |
6533 | dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, | |
6534 | phba->slim2p.virt, phba->slim2p.phys); | |
6535 | ||
6536 | /* I/O memory unmap */ | |
6537 | iounmap(phba->ctrl_regs_memmap_p); | |
6538 | iounmap(phba->slim_memmap_p); | |
6539 | ||
6540 | return; | |
6541 | } | |
6542 | ||
6543 | /** | |
6544 | * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status | |
6545 | * @phba: pointer to lpfc hba data structure. | |
6546 | * | |
6547 | * This routine is invoked to wait for SLI4 device Power On Self Test (POST) | |
6548 | * done and check status. | |
6549 | * | |
6550 | * Return 0 if successful, otherwise -ENODEV. | |
6551 | **/ | |
6552 | int | |
6553 | lpfc_sli4_post_status_check(struct lpfc_hba *phba) | |
6554 | { | |
6555 | struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; | |
6556 | struct lpfc_register reg_data; | |
6557 | int i, port_error = 0; | |
6558 | uint32_t if_type; | |
6559 | ||
6560 | memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); | |
6561 | memset(®_data, 0, sizeof(reg_data)); | |
6562 | if (!phba->sli4_hba.PSMPHRregaddr) | |
6563 | return -ENODEV; | |
6564 | ||
6565 | /* Wait up to 30 seconds for the SLI Port POST done and ready */ | |
6566 | for (i = 0; i < 3000; i++) { | |
6567 | if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, | |
6568 | &portsmphr_reg.word0) || | |
6569 | (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { | |
6570 | /* Port has a fatal POST error, break out */ | |
6571 | port_error = -ENODEV; | |
6572 | break; | |
6573 | } | |
6574 | if (LPFC_POST_STAGE_PORT_READY == | |
6575 | bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) | |
6576 | break; | |
6577 | msleep(10); | |
6578 | } | |
6579 | ||
6580 | /* | |
6581 | * If there was a port error during POST, then don't proceed with | |
6582 | * other register reads as the data may not be valid. Just exit. | |
6583 | */ | |
6584 | if (port_error) { | |
6585 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6586 | "1408 Port Failed POST - portsmphr=0x%x, " | |
6587 | "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " | |
6588 | "scr2=x%x, hscratch=x%x, pstatus=x%x\n", | |
6589 | portsmphr_reg.word0, | |
6590 | bf_get(lpfc_port_smphr_perr, &portsmphr_reg), | |
6591 | bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), | |
6592 | bf_get(lpfc_port_smphr_nip, &portsmphr_reg), | |
6593 | bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), | |
6594 | bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), | |
6595 | bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), | |
6596 | bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), | |
6597 | bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); | |
6598 | } else { | |
6599 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
6600 | "2534 Device Info: SLIFamily=0x%x, " | |
6601 | "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " | |
6602 | "SLIHint_2=0x%x, FT=0x%x\n", | |
6603 | bf_get(lpfc_sli_intf_sli_family, | |
6604 | &phba->sli4_hba.sli_intf), | |
6605 | bf_get(lpfc_sli_intf_slirev, | |
6606 | &phba->sli4_hba.sli_intf), | |
6607 | bf_get(lpfc_sli_intf_if_type, | |
6608 | &phba->sli4_hba.sli_intf), | |
6609 | bf_get(lpfc_sli_intf_sli_hint1, | |
6610 | &phba->sli4_hba.sli_intf), | |
6611 | bf_get(lpfc_sli_intf_sli_hint2, | |
6612 | &phba->sli4_hba.sli_intf), | |
6613 | bf_get(lpfc_sli_intf_func_type, | |
6614 | &phba->sli4_hba.sli_intf)); | |
6615 | /* | |
6616 | * Check for other Port errors during the initialization | |
6617 | * process. Fail the load if the port did not come up | |
6618 | * correctly. | |
6619 | */ | |
6620 | if_type = bf_get(lpfc_sli_intf_if_type, | |
6621 | &phba->sli4_hba.sli_intf); | |
6622 | switch (if_type) { | |
6623 | case LPFC_SLI_INTF_IF_TYPE_0: | |
6624 | phba->sli4_hba.ue_mask_lo = | |
6625 | readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); | |
6626 | phba->sli4_hba.ue_mask_hi = | |
6627 | readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); | |
6628 | uerrlo_reg.word0 = | |
6629 | readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); | |
6630 | uerrhi_reg.word0 = | |
6631 | readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); | |
6632 | if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || | |
6633 | (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { | |
6634 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6635 | "1422 Unrecoverable Error " | |
6636 | "Detected during POST " | |
6637 | "uerr_lo_reg=0x%x, " | |
6638 | "uerr_hi_reg=0x%x, " | |
6639 | "ue_mask_lo_reg=0x%x, " | |
6640 | "ue_mask_hi_reg=0x%x\n", | |
6641 | uerrlo_reg.word0, | |
6642 | uerrhi_reg.word0, | |
6643 | phba->sli4_hba.ue_mask_lo, | |
6644 | phba->sli4_hba.ue_mask_hi); | |
6645 | port_error = -ENODEV; | |
6646 | } | |
6647 | break; | |
6648 | case LPFC_SLI_INTF_IF_TYPE_2: | |
6649 | /* Final checks. The port status should be clean. */ | |
6650 | if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, | |
6651 | ®_data.word0) || | |
6652 | (bf_get(lpfc_sliport_status_err, ®_data) && | |
6653 | !bf_get(lpfc_sliport_status_rn, ®_data))) { | |
6654 | phba->work_status[0] = | |
6655 | readl(phba->sli4_hba.u.if_type2. | |
6656 | ERR1regaddr); | |
6657 | phba->work_status[1] = | |
6658 | readl(phba->sli4_hba.u.if_type2. | |
6659 | ERR2regaddr); | |
6660 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6661 | "2888 Unrecoverable port error " | |
6662 | "following POST: port status reg " | |
6663 | "0x%x, port_smphr reg 0x%x, " | |
6664 | "error 1=0x%x, error 2=0x%x\n", | |
6665 | reg_data.word0, | |
6666 | portsmphr_reg.word0, | |
6667 | phba->work_status[0], | |
6668 | phba->work_status[1]); | |
6669 | port_error = -ENODEV; | |
6670 | } | |
6671 | break; | |
6672 | case LPFC_SLI_INTF_IF_TYPE_1: | |
6673 | default: | |
6674 | break; | |
6675 | } | |
6676 | } | |
6677 | return port_error; | |
6678 | } | |
6679 | ||
6680 | /** | |
6681 | * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. | |
6682 | * @phba: pointer to lpfc hba data structure. | |
6683 | * @if_type: The SLI4 interface type getting configured. | |
6684 | * | |
6685 | * This routine is invoked to set up SLI4 BAR0 PCI config space register | |
6686 | * memory map. | |
6687 | **/ | |
6688 | static void | |
6689 | lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) | |
6690 | { | |
6691 | switch (if_type) { | |
6692 | case LPFC_SLI_INTF_IF_TYPE_0: | |
6693 | phba->sli4_hba.u.if_type0.UERRLOregaddr = | |
6694 | phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; | |
6695 | phba->sli4_hba.u.if_type0.UERRHIregaddr = | |
6696 | phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; | |
6697 | phba->sli4_hba.u.if_type0.UEMASKLOregaddr = | |
6698 | phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; | |
6699 | phba->sli4_hba.u.if_type0.UEMASKHIregaddr = | |
6700 | phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; | |
6701 | phba->sli4_hba.SLIINTFregaddr = | |
6702 | phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; | |
6703 | break; | |
6704 | case LPFC_SLI_INTF_IF_TYPE_2: | |
6705 | phba->sli4_hba.u.if_type2.ERR1regaddr = | |
6706 | phba->sli4_hba.conf_regs_memmap_p + | |
6707 | LPFC_CTL_PORT_ER1_OFFSET; | |
6708 | phba->sli4_hba.u.if_type2.ERR2regaddr = | |
6709 | phba->sli4_hba.conf_regs_memmap_p + | |
6710 | LPFC_CTL_PORT_ER2_OFFSET; | |
6711 | phba->sli4_hba.u.if_type2.CTRLregaddr = | |
6712 | phba->sli4_hba.conf_regs_memmap_p + | |
6713 | LPFC_CTL_PORT_CTL_OFFSET; | |
6714 | phba->sli4_hba.u.if_type2.STATUSregaddr = | |
6715 | phba->sli4_hba.conf_regs_memmap_p + | |
6716 | LPFC_CTL_PORT_STA_OFFSET; | |
6717 | phba->sli4_hba.SLIINTFregaddr = | |
6718 | phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; | |
6719 | phba->sli4_hba.PSMPHRregaddr = | |
6720 | phba->sli4_hba.conf_regs_memmap_p + | |
6721 | LPFC_CTL_PORT_SEM_OFFSET; | |
6722 | phba->sli4_hba.RQDBregaddr = | |
6723 | phba->sli4_hba.conf_regs_memmap_p + | |
6724 | LPFC_ULP0_RQ_DOORBELL; | |
6725 | phba->sli4_hba.WQDBregaddr = | |
6726 | phba->sli4_hba.conf_regs_memmap_p + | |
6727 | LPFC_ULP0_WQ_DOORBELL; | |
6728 | phba->sli4_hba.EQCQDBregaddr = | |
6729 | phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; | |
6730 | phba->sli4_hba.MQDBregaddr = | |
6731 | phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; | |
6732 | phba->sli4_hba.BMBXregaddr = | |
6733 | phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; | |
6734 | break; | |
6735 | case LPFC_SLI_INTF_IF_TYPE_1: | |
6736 | default: | |
6737 | dev_printk(KERN_ERR, &phba->pcidev->dev, | |
6738 | "FATAL - unsupported SLI4 interface type - %d\n", | |
6739 | if_type); | |
6740 | break; | |
6741 | } | |
6742 | } | |
6743 | ||
6744 | /** | |
6745 | * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. | |
6746 | * @phba: pointer to lpfc hba data structure. | |
6747 | * | |
6748 | * This routine is invoked to set up SLI4 BAR1 control status register (CSR) | |
6749 | * memory map. | |
6750 | **/ | |
6751 | static void | |
6752 | lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) | |
6753 | { | |
6754 | phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + | |
6755 | LPFC_SLIPORT_IF0_SMPHR; | |
6756 | phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + | |
6757 | LPFC_HST_ISR0; | |
6758 | phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + | |
6759 | LPFC_HST_IMR0; | |
6760 | phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + | |
6761 | LPFC_HST_ISCR0; | |
6762 | } | |
6763 | ||
6764 | /** | |
6765 | * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. | |
6766 | * @phba: pointer to lpfc hba data structure. | |
6767 | * @vf: virtual function number | |
6768 | * | |
6769 | * This routine is invoked to set up SLI4 BAR2 doorbell register memory map | |
6770 | * based on the given viftual function number, @vf. | |
6771 | * | |
6772 | * Return 0 if successful, otherwise -ENODEV. | |
6773 | **/ | |
6774 | static int | |
6775 | lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) | |
6776 | { | |
6777 | if (vf > LPFC_VIR_FUNC_MAX) | |
6778 | return -ENODEV; | |
6779 | ||
6780 | phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + | |
6781 | vf * LPFC_VFR_PAGE_SIZE + | |
6782 | LPFC_ULP0_RQ_DOORBELL); | |
6783 | phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + | |
6784 | vf * LPFC_VFR_PAGE_SIZE + | |
6785 | LPFC_ULP0_WQ_DOORBELL); | |
6786 | phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + | |
6787 | vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); | |
6788 | phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + | |
6789 | vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); | |
6790 | phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + | |
6791 | vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); | |
6792 | return 0; | |
6793 | } | |
6794 | ||
6795 | /** | |
6796 | * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox | |
6797 | * @phba: pointer to lpfc hba data structure. | |
6798 | * | |
6799 | * This routine is invoked to create the bootstrap mailbox | |
6800 | * region consistent with the SLI-4 interface spec. This | |
6801 | * routine allocates all memory necessary to communicate | |
6802 | * mailbox commands to the port and sets up all alignment | |
6803 | * needs. No locks are expected to be held when calling | |
6804 | * this routine. | |
6805 | * | |
6806 | * Return codes | |
6807 | * 0 - successful | |
6808 | * -ENOMEM - could not allocated memory. | |
6809 | **/ | |
6810 | static int | |
6811 | lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) | |
6812 | { | |
6813 | uint32_t bmbx_size; | |
6814 | struct lpfc_dmabuf *dmabuf; | |
6815 | struct dma_address *dma_address; | |
6816 | uint32_t pa_addr; | |
6817 | uint64_t phys_addr; | |
6818 | ||
6819 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
6820 | if (!dmabuf) | |
6821 | return -ENOMEM; | |
6822 | ||
6823 | /* | |
6824 | * The bootstrap mailbox region is comprised of 2 parts | |
6825 | * plus an alignment restriction of 16 bytes. | |
6826 | */ | |
6827 | bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); | |
6828 | dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size, | |
6829 | &dmabuf->phys, GFP_KERNEL); | |
6830 | if (!dmabuf->virt) { | |
6831 | kfree(dmabuf); | |
6832 | return -ENOMEM; | |
6833 | } | |
6834 | ||
6835 | /* | |
6836 | * Initialize the bootstrap mailbox pointers now so that the register | |
6837 | * operations are simple later. The mailbox dma address is required | |
6838 | * to be 16-byte aligned. Also align the virtual memory as each | |
6839 | * maibox is copied into the bmbx mailbox region before issuing the | |
6840 | * command to the port. | |
6841 | */ | |
6842 | phba->sli4_hba.bmbx.dmabuf = dmabuf; | |
6843 | phba->sli4_hba.bmbx.bmbx_size = bmbx_size; | |
6844 | ||
6845 | phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, | |
6846 | LPFC_ALIGN_16_BYTE); | |
6847 | phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, | |
6848 | LPFC_ALIGN_16_BYTE); | |
6849 | ||
6850 | /* | |
6851 | * Set the high and low physical addresses now. The SLI4 alignment | |
6852 | * requirement is 16 bytes and the mailbox is posted to the port | |
6853 | * as two 30-bit addresses. The other data is a bit marking whether | |
6854 | * the 30-bit address is the high or low address. | |
6855 | * Upcast bmbx aphys to 64bits so shift instruction compiles | |
6856 | * clean on 32 bit machines. | |
6857 | */ | |
6858 | dma_address = &phba->sli4_hba.bmbx.dma_address; | |
6859 | phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; | |
6860 | pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); | |
6861 | dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | | |
6862 | LPFC_BMBX_BIT1_ADDR_HI); | |
6863 | ||
6864 | pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); | |
6865 | dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | | |
6866 | LPFC_BMBX_BIT1_ADDR_LO); | |
6867 | return 0; | |
6868 | } | |
6869 | ||
6870 | /** | |
6871 | * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources | |
6872 | * @phba: pointer to lpfc hba data structure. | |
6873 | * | |
6874 | * This routine is invoked to teardown the bootstrap mailbox | |
6875 | * region and release all host resources. This routine requires | |
6876 | * the caller to ensure all mailbox commands recovered, no | |
6877 | * additional mailbox comands are sent, and interrupts are disabled | |
6878 | * before calling this routine. | |
6879 | * | |
6880 | **/ | |
6881 | static void | |
6882 | lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) | |
6883 | { | |
6884 | dma_free_coherent(&phba->pcidev->dev, | |
6885 | phba->sli4_hba.bmbx.bmbx_size, | |
6886 | phba->sli4_hba.bmbx.dmabuf->virt, | |
6887 | phba->sli4_hba.bmbx.dmabuf->phys); | |
6888 | ||
6889 | kfree(phba->sli4_hba.bmbx.dmabuf); | |
6890 | memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); | |
6891 | } | |
6892 | ||
6893 | /** | |
6894 | * lpfc_sli4_read_config - Get the config parameters. | |
6895 | * @phba: pointer to lpfc hba data structure. | |
6896 | * | |
6897 | * This routine is invoked to read the configuration parameters from the HBA. | |
6898 | * The configuration parameters are used to set the base and maximum values | |
6899 | * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource | |
6900 | * allocation for the port. | |
6901 | * | |
6902 | * Return codes | |
6903 | * 0 - successful | |
6904 | * -ENOMEM - No available memory | |
6905 | * -EIO - The mailbox failed to complete successfully. | |
6906 | **/ | |
6907 | int | |
6908 | lpfc_sli4_read_config(struct lpfc_hba *phba) | |
6909 | { | |
6910 | LPFC_MBOXQ_t *pmb; | |
6911 | struct lpfc_mbx_read_config *rd_config; | |
6912 | union lpfc_sli4_cfg_shdr *shdr; | |
6913 | uint32_t shdr_status, shdr_add_status; | |
6914 | struct lpfc_mbx_get_func_cfg *get_func_cfg; | |
6915 | struct lpfc_rsrc_desc_fcfcoe *desc; | |
6916 | char *pdesc_0; | |
6917 | uint16_t forced_link_speed; | |
6918 | uint32_t if_type; | |
6919 | int length, i, rc = 0, rc2; | |
6920 | ||
6921 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
6922 | if (!pmb) { | |
6923 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
6924 | "2011 Unable to allocate memory for issuing " | |
6925 | "SLI_CONFIG_SPECIAL mailbox command\n"); | |
6926 | return -ENOMEM; | |
6927 | } | |
6928 | ||
6929 | lpfc_read_config(phba, pmb); | |
6930 | ||
6931 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
6932 | if (rc != MBX_SUCCESS) { | |
6933 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
6934 | "2012 Mailbox failed , mbxCmd x%x " | |
6935 | "READ_CONFIG, mbxStatus x%x\n", | |
6936 | bf_get(lpfc_mqe_command, &pmb->u.mqe), | |
6937 | bf_get(lpfc_mqe_status, &pmb->u.mqe)); | |
6938 | rc = -EIO; | |
6939 | } else { | |
6940 | rd_config = &pmb->u.mqe.un.rd_config; | |
6941 | if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { | |
6942 | phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; | |
6943 | phba->sli4_hba.lnk_info.lnk_tp = | |
6944 | bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); | |
6945 | phba->sli4_hba.lnk_info.lnk_no = | |
6946 | bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); | |
6947 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
6948 | "3081 lnk_type:%d, lnk_numb:%d\n", | |
6949 | phba->sli4_hba.lnk_info.lnk_tp, | |
6950 | phba->sli4_hba.lnk_info.lnk_no); | |
6951 | } else | |
6952 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
6953 | "3082 Mailbox (x%x) returned ldv:x0\n", | |
6954 | bf_get(lpfc_mqe_command, &pmb->u.mqe)); | |
6955 | phba->sli4_hba.extents_in_use = | |
6956 | bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); | |
6957 | phba->sli4_hba.max_cfg_param.max_xri = | |
6958 | bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); | |
6959 | phba->sli4_hba.max_cfg_param.xri_base = | |
6960 | bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); | |
6961 | phba->sli4_hba.max_cfg_param.max_vpi = | |
6962 | bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); | |
6963 | phba->sli4_hba.max_cfg_param.vpi_base = | |
6964 | bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); | |
6965 | phba->sli4_hba.max_cfg_param.max_rpi = | |
6966 | bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); | |
6967 | phba->sli4_hba.max_cfg_param.rpi_base = | |
6968 | bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); | |
6969 | phba->sli4_hba.max_cfg_param.max_vfi = | |
6970 | bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); | |
6971 | phba->sli4_hba.max_cfg_param.vfi_base = | |
6972 | bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); | |
6973 | phba->sli4_hba.max_cfg_param.max_fcfi = | |
6974 | bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); | |
6975 | phba->sli4_hba.max_cfg_param.max_eq = | |
6976 | bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); | |
6977 | phba->sli4_hba.max_cfg_param.max_rq = | |
6978 | bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); | |
6979 | phba->sli4_hba.max_cfg_param.max_wq = | |
6980 | bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); | |
6981 | phba->sli4_hba.max_cfg_param.max_cq = | |
6982 | bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); | |
6983 | phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); | |
6984 | phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; | |
6985 | phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; | |
6986 | phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; | |
6987 | phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? | |
6988 | (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; | |
6989 | phba->max_vports = phba->max_vpi; | |
6990 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
6991 | "2003 cfg params Extents? %d " | |
6992 | "XRI(B:%d M:%d), " | |
6993 | "VPI(B:%d M:%d) " | |
6994 | "VFI(B:%d M:%d) " | |
6995 | "RPI(B:%d M:%d) " | |
6996 | "FCFI(Count:%d)\n", | |
6997 | phba->sli4_hba.extents_in_use, | |
6998 | phba->sli4_hba.max_cfg_param.xri_base, | |
6999 | phba->sli4_hba.max_cfg_param.max_xri, | |
7000 | phba->sli4_hba.max_cfg_param.vpi_base, | |
7001 | phba->sli4_hba.max_cfg_param.max_vpi, | |
7002 | phba->sli4_hba.max_cfg_param.vfi_base, | |
7003 | phba->sli4_hba.max_cfg_param.max_vfi, | |
7004 | phba->sli4_hba.max_cfg_param.rpi_base, | |
7005 | phba->sli4_hba.max_cfg_param.max_rpi, | |
7006 | phba->sli4_hba.max_cfg_param.max_fcfi); | |
7007 | } | |
7008 | ||
7009 | if (rc) | |
7010 | goto read_cfg_out; | |
7011 | ||
7012 | /* Update link speed if forced link speed is supported */ | |
7013 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); | |
7014 | if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { | |
7015 | forced_link_speed = | |
7016 | bf_get(lpfc_mbx_rd_conf_link_speed, rd_config); | |
7017 | if (forced_link_speed) { | |
7018 | phba->hba_flag |= HBA_FORCED_LINK_SPEED; | |
7019 | ||
7020 | switch (forced_link_speed) { | |
7021 | case LINK_SPEED_1G: | |
7022 | phba->cfg_link_speed = | |
7023 | LPFC_USER_LINK_SPEED_1G; | |
7024 | break; | |
7025 | case LINK_SPEED_2G: | |
7026 | phba->cfg_link_speed = | |
7027 | LPFC_USER_LINK_SPEED_2G; | |
7028 | break; | |
7029 | case LINK_SPEED_4G: | |
7030 | phba->cfg_link_speed = | |
7031 | LPFC_USER_LINK_SPEED_4G; | |
7032 | break; | |
7033 | case LINK_SPEED_8G: | |
7034 | phba->cfg_link_speed = | |
7035 | LPFC_USER_LINK_SPEED_8G; | |
7036 | break; | |
7037 | case LINK_SPEED_10G: | |
7038 | phba->cfg_link_speed = | |
7039 | LPFC_USER_LINK_SPEED_10G; | |
7040 | break; | |
7041 | case LINK_SPEED_16G: | |
7042 | phba->cfg_link_speed = | |
7043 | LPFC_USER_LINK_SPEED_16G; | |
7044 | break; | |
7045 | case LINK_SPEED_32G: | |
7046 | phba->cfg_link_speed = | |
7047 | LPFC_USER_LINK_SPEED_32G; | |
7048 | break; | |
7049 | case 0xffff: | |
7050 | phba->cfg_link_speed = | |
7051 | LPFC_USER_LINK_SPEED_AUTO; | |
7052 | break; | |
7053 | default: | |
7054 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
7055 | "0047 Unrecognized link " | |
7056 | "speed : %d\n", | |
7057 | forced_link_speed); | |
7058 | phba->cfg_link_speed = | |
7059 | LPFC_USER_LINK_SPEED_AUTO; | |
7060 | } | |
7061 | } | |
7062 | } | |
7063 | ||
7064 | /* Reset the DFT_HBA_Q_DEPTH to the max xri */ | |
7065 | length = phba->sli4_hba.max_cfg_param.max_xri - | |
7066 | lpfc_sli4_get_els_iocb_cnt(phba); | |
7067 | if (phba->cfg_hba_queue_depth > length) { | |
7068 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
7069 | "3361 HBA queue depth changed from %d to %d\n", | |
7070 | phba->cfg_hba_queue_depth, length); | |
7071 | phba->cfg_hba_queue_depth = length; | |
7072 | } | |
7073 | ||
7074 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != | |
7075 | LPFC_SLI_INTF_IF_TYPE_2) | |
7076 | goto read_cfg_out; | |
7077 | ||
7078 | /* get the pf# and vf# for SLI4 if_type 2 port */ | |
7079 | length = (sizeof(struct lpfc_mbx_get_func_cfg) - | |
7080 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
7081 | lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, | |
7082 | LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, | |
7083 | length, LPFC_SLI4_MBX_EMBED); | |
7084 | ||
7085 | rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
7086 | shdr = (union lpfc_sli4_cfg_shdr *) | |
7087 | &pmb->u.mqe.un.sli4_config.header.cfg_shdr; | |
7088 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
7089 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
7090 | if (rc2 || shdr_status || shdr_add_status) { | |
7091 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
7092 | "3026 Mailbox failed , mbxCmd x%x " | |
7093 | "GET_FUNCTION_CONFIG, mbxStatus x%x\n", | |
7094 | bf_get(lpfc_mqe_command, &pmb->u.mqe), | |
7095 | bf_get(lpfc_mqe_status, &pmb->u.mqe)); | |
7096 | goto read_cfg_out; | |
7097 | } | |
7098 | ||
7099 | /* search for fc_fcoe resrouce descriptor */ | |
7100 | get_func_cfg = &pmb->u.mqe.un.get_func_cfg; | |
7101 | ||
7102 | pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; | |
7103 | desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; | |
7104 | length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); | |
7105 | if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) | |
7106 | length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; | |
7107 | else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) | |
7108 | goto read_cfg_out; | |
7109 | ||
7110 | for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { | |
7111 | desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); | |
7112 | if (LPFC_RSRC_DESC_TYPE_FCFCOE == | |
7113 | bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { | |
7114 | phba->sli4_hba.iov.pf_number = | |
7115 | bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); | |
7116 | phba->sli4_hba.iov.vf_number = | |
7117 | bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); | |
7118 | break; | |
7119 | } | |
7120 | } | |
7121 | ||
7122 | if (i < LPFC_RSRC_DESC_MAX_NUM) | |
7123 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
7124 | "3027 GET_FUNCTION_CONFIG: pf_number:%d, " | |
7125 | "vf_number:%d\n", phba->sli4_hba.iov.pf_number, | |
7126 | phba->sli4_hba.iov.vf_number); | |
7127 | else | |
7128 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
7129 | "3028 GET_FUNCTION_CONFIG: failed to find " | |
7130 | "Resrouce Descriptor:x%x\n", | |
7131 | LPFC_RSRC_DESC_TYPE_FCFCOE); | |
7132 | ||
7133 | read_cfg_out: | |
7134 | mempool_free(pmb, phba->mbox_mem_pool); | |
7135 | return rc; | |
7136 | } | |
7137 | ||
7138 | /** | |
7139 | * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. | |
7140 | * @phba: pointer to lpfc hba data structure. | |
7141 | * | |
7142 | * This routine is invoked to setup the port-side endian order when | |
7143 | * the port if_type is 0. This routine has no function for other | |
7144 | * if_types. | |
7145 | * | |
7146 | * Return codes | |
7147 | * 0 - successful | |
7148 | * -ENOMEM - No available memory | |
7149 | * -EIO - The mailbox failed to complete successfully. | |
7150 | **/ | |
7151 | static int | |
7152 | lpfc_setup_endian_order(struct lpfc_hba *phba) | |
7153 | { | |
7154 | LPFC_MBOXQ_t *mboxq; | |
7155 | uint32_t if_type, rc = 0; | |
7156 | uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, | |
7157 | HOST_ENDIAN_HIGH_WORD1}; | |
7158 | ||
7159 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); | |
7160 | switch (if_type) { | |
7161 | case LPFC_SLI_INTF_IF_TYPE_0: | |
7162 | mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, | |
7163 | GFP_KERNEL); | |
7164 | if (!mboxq) { | |
7165 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7166 | "0492 Unable to allocate memory for " | |
7167 | "issuing SLI_CONFIG_SPECIAL mailbox " | |
7168 | "command\n"); | |
7169 | return -ENOMEM; | |
7170 | } | |
7171 | ||
7172 | /* | |
7173 | * The SLI4_CONFIG_SPECIAL mailbox command requires the first | |
7174 | * two words to contain special data values and no other data. | |
7175 | */ | |
7176 | memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
7177 | memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); | |
7178 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
7179 | if (rc != MBX_SUCCESS) { | |
7180 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7181 | "0493 SLI_CONFIG_SPECIAL mailbox " | |
7182 | "failed with status x%x\n", | |
7183 | rc); | |
7184 | rc = -EIO; | |
7185 | } | |
7186 | mempool_free(mboxq, phba->mbox_mem_pool); | |
7187 | break; | |
7188 | case LPFC_SLI_INTF_IF_TYPE_2: | |
7189 | case LPFC_SLI_INTF_IF_TYPE_1: | |
7190 | default: | |
7191 | break; | |
7192 | } | |
7193 | return rc; | |
7194 | } | |
7195 | ||
7196 | /** | |
7197 | * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts | |
7198 | * @phba: pointer to lpfc hba data structure. | |
7199 | * | |
7200 | * This routine is invoked to check the user settable queue counts for EQs and | |
7201 | * CQs. after this routine is called the counts will be set to valid values that | |
7202 | * adhere to the constraints of the system's interrupt vectors and the port's | |
7203 | * queue resources. | |
7204 | * | |
7205 | * Return codes | |
7206 | * 0 - successful | |
7207 | * -ENOMEM - No available memory | |
7208 | **/ | |
7209 | static int | |
7210 | lpfc_sli4_queue_verify(struct lpfc_hba *phba) | |
7211 | { | |
7212 | int cfg_fcp_io_channel; | |
7213 | uint32_t cpu; | |
7214 | uint32_t i = 0; | |
7215 | int fof_vectors = phba->cfg_fof ? 1 : 0; | |
7216 | ||
7217 | /* | |
7218 | * Sanity check for configured queue parameters against the run-time | |
7219 | * device parameters | |
7220 | */ | |
7221 | ||
7222 | /* Sanity check on HBA EQ parameters */ | |
7223 | cfg_fcp_io_channel = phba->cfg_fcp_io_channel; | |
7224 | ||
7225 | /* It doesn't make sense to have more io channels then online CPUs */ | |
7226 | for_each_present_cpu(cpu) { | |
7227 | if (cpu_online(cpu)) | |
7228 | i++; | |
7229 | } | |
7230 | phba->sli4_hba.num_online_cpu = i; | |
7231 | phba->sli4_hba.num_present_cpu = lpfc_present_cpu; | |
7232 | phba->sli4_hba.curr_disp_cpu = 0; | |
7233 | ||
7234 | if (i < cfg_fcp_io_channel) { | |
7235 | lpfc_printf_log(phba, | |
7236 | KERN_ERR, LOG_INIT, | |
7237 | "3188 Reducing IO channels to match number of " | |
7238 | "online CPUs: from %d to %d\n", | |
7239 | cfg_fcp_io_channel, i); | |
7240 | cfg_fcp_io_channel = i; | |
7241 | } | |
7242 | ||
7243 | if (cfg_fcp_io_channel + fof_vectors > | |
7244 | phba->sli4_hba.max_cfg_param.max_eq) { | |
7245 | if (phba->sli4_hba.max_cfg_param.max_eq < | |
7246 | LPFC_FCP_IO_CHAN_MIN) { | |
7247 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7248 | "2574 Not enough EQs (%d) from the " | |
7249 | "pci function for supporting FCP " | |
7250 | "EQs (%d)\n", | |
7251 | phba->sli4_hba.max_cfg_param.max_eq, | |
7252 | phba->cfg_fcp_io_channel); | |
7253 | goto out_error; | |
7254 | } | |
7255 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7256 | "2575 Reducing IO channels to match number of " | |
7257 | "available EQs: from %d to %d\n", | |
7258 | cfg_fcp_io_channel, | |
7259 | phba->sli4_hba.max_cfg_param.max_eq); | |
7260 | cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq - | |
7261 | fof_vectors; | |
7262 | } | |
7263 | ||
7264 | /* The actual number of FCP event queues adopted */ | |
7265 | phba->cfg_fcp_io_channel = cfg_fcp_io_channel; | |
7266 | ||
7267 | /* Get EQ depth from module parameter, fake the default for now */ | |
7268 | phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; | |
7269 | phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; | |
7270 | ||
7271 | /* Get CQ depth from module parameter, fake the default for now */ | |
7272 | phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; | |
7273 | phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; | |
7274 | ||
7275 | return 0; | |
7276 | out_error: | |
7277 | return -ENOMEM; | |
7278 | } | |
7279 | ||
7280 | /** | |
7281 | * lpfc_sli4_queue_create - Create all the SLI4 queues | |
7282 | * @phba: pointer to lpfc hba data structure. | |
7283 | * | |
7284 | * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA | |
7285 | * operation. For each SLI4 queue type, the parameters such as queue entry | |
7286 | * count (queue depth) shall be taken from the module parameter. For now, | |
7287 | * we just use some constant number as place holder. | |
7288 | * | |
7289 | * Return codes | |
7290 | * 0 - successful | |
7291 | * -ENOMEM - No availble memory | |
7292 | * -EIO - The mailbox failed to complete successfully. | |
7293 | **/ | |
7294 | int | |
7295 | lpfc_sli4_queue_create(struct lpfc_hba *phba) | |
7296 | { | |
7297 | struct lpfc_queue *qdesc; | |
7298 | uint32_t wqesize; | |
7299 | int idx; | |
7300 | ||
7301 | /* | |
7302 | * Create HBA Record arrays. | |
7303 | */ | |
7304 | if (!phba->cfg_fcp_io_channel) | |
7305 | return -ERANGE; | |
7306 | ||
7307 | phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; | |
7308 | phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; | |
7309 | phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; | |
7310 | phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; | |
7311 | phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; | |
7312 | phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; | |
7313 | ||
7314 | phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) * | |
7315 | phba->cfg_fcp_io_channel), GFP_KERNEL); | |
7316 | if (!phba->sli4_hba.hba_eq) { | |
7317 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7318 | "2576 Failed allocate memory for " | |
7319 | "fast-path EQ record array\n"); | |
7320 | goto out_error; | |
7321 | } | |
7322 | ||
7323 | phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * | |
7324 | phba->cfg_fcp_io_channel), GFP_KERNEL); | |
7325 | if (!phba->sli4_hba.fcp_cq) { | |
7326 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7327 | "2577 Failed allocate memory for fast-path " | |
7328 | "CQ record array\n"); | |
7329 | goto out_error; | |
7330 | } | |
7331 | ||
7332 | phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * | |
7333 | phba->cfg_fcp_io_channel), GFP_KERNEL); | |
7334 | if (!phba->sli4_hba.fcp_wq) { | |
7335 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7336 | "2578 Failed allocate memory for fast-path " | |
7337 | "WQ record array\n"); | |
7338 | goto out_error; | |
7339 | } | |
7340 | ||
7341 | /* | |
7342 | * Since the first EQ can have multiple CQs associated with it, | |
7343 | * this array is used to quickly see if we have a FCP fast-path | |
7344 | * CQ match. | |
7345 | */ | |
7346 | phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) * | |
7347 | phba->cfg_fcp_io_channel), GFP_KERNEL); | |
7348 | if (!phba->sli4_hba.fcp_cq_map) { | |
7349 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7350 | "2545 Failed allocate memory for fast-path " | |
7351 | "CQ map\n"); | |
7352 | goto out_error; | |
7353 | } | |
7354 | ||
7355 | /* | |
7356 | * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies | |
7357 | * how many EQs to create. | |
7358 | */ | |
7359 | for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { | |
7360 | ||
7361 | /* Create EQs */ | |
7362 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, | |
7363 | phba->sli4_hba.eq_ecount); | |
7364 | if (!qdesc) { | |
7365 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7366 | "0497 Failed allocate EQ (%d)\n", idx); | |
7367 | goto out_error; | |
7368 | } | |
7369 | phba->sli4_hba.hba_eq[idx] = qdesc; | |
7370 | ||
7371 | /* Create Fast Path FCP CQs */ | |
7372 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, | |
7373 | phba->sli4_hba.cq_ecount); | |
7374 | if (!qdesc) { | |
7375 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7376 | "0499 Failed allocate fast-path FCP " | |
7377 | "CQ (%d)\n", idx); | |
7378 | goto out_error; | |
7379 | } | |
7380 | phba->sli4_hba.fcp_cq[idx] = qdesc; | |
7381 | ||
7382 | /* Create Fast Path FCP WQs */ | |
7383 | wqesize = (phba->fcp_embed_io) ? | |
7384 | LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; | |
7385 | qdesc = lpfc_sli4_queue_alloc(phba, wqesize, | |
7386 | phba->sli4_hba.wq_ecount); | |
7387 | if (!qdesc) { | |
7388 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7389 | "0503 Failed allocate fast-path FCP " | |
7390 | "WQ (%d)\n", idx); | |
7391 | goto out_error; | |
7392 | } | |
7393 | phba->sli4_hba.fcp_wq[idx] = qdesc; | |
7394 | } | |
7395 | ||
7396 | ||
7397 | /* | |
7398 | * Create Slow Path Completion Queues (CQs) | |
7399 | */ | |
7400 | ||
7401 | /* Create slow-path Mailbox Command Complete Queue */ | |
7402 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, | |
7403 | phba->sli4_hba.cq_ecount); | |
7404 | if (!qdesc) { | |
7405 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7406 | "0500 Failed allocate slow-path mailbox CQ\n"); | |
7407 | goto out_error; | |
7408 | } | |
7409 | phba->sli4_hba.mbx_cq = qdesc; | |
7410 | ||
7411 | /* Create slow-path ELS Complete Queue */ | |
7412 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, | |
7413 | phba->sli4_hba.cq_ecount); | |
7414 | if (!qdesc) { | |
7415 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7416 | "0501 Failed allocate slow-path ELS CQ\n"); | |
7417 | goto out_error; | |
7418 | } | |
7419 | phba->sli4_hba.els_cq = qdesc; | |
7420 | ||
7421 | ||
7422 | /* | |
7423 | * Create Slow Path Work Queues (WQs) | |
7424 | */ | |
7425 | ||
7426 | /* Create Mailbox Command Queue */ | |
7427 | ||
7428 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, | |
7429 | phba->sli4_hba.mq_ecount); | |
7430 | if (!qdesc) { | |
7431 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7432 | "0505 Failed allocate slow-path MQ\n"); | |
7433 | goto out_error; | |
7434 | } | |
7435 | phba->sli4_hba.mbx_wq = qdesc; | |
7436 | ||
7437 | /* | |
7438 | * Create ELS Work Queues | |
7439 | */ | |
7440 | ||
7441 | /* Create slow-path ELS Work Queue */ | |
7442 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, | |
7443 | phba->sli4_hba.wq_ecount); | |
7444 | if (!qdesc) { | |
7445 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7446 | "0504 Failed allocate slow-path ELS WQ\n"); | |
7447 | goto out_error; | |
7448 | } | |
7449 | phba->sli4_hba.els_wq = qdesc; | |
7450 | ||
7451 | /* | |
7452 | * Create Receive Queue (RQ) | |
7453 | */ | |
7454 | ||
7455 | /* Create Receive Queue for header */ | |
7456 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, | |
7457 | phba->sli4_hba.rq_ecount); | |
7458 | if (!qdesc) { | |
7459 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7460 | "0506 Failed allocate receive HRQ\n"); | |
7461 | goto out_error; | |
7462 | } | |
7463 | phba->sli4_hba.hdr_rq = qdesc; | |
7464 | ||
7465 | /* Create Receive Queue for data */ | |
7466 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, | |
7467 | phba->sli4_hba.rq_ecount); | |
7468 | if (!qdesc) { | |
7469 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7470 | "0507 Failed allocate receive DRQ\n"); | |
7471 | goto out_error; | |
7472 | } | |
7473 | phba->sli4_hba.dat_rq = qdesc; | |
7474 | ||
7475 | /* Create the Queues needed for Flash Optimized Fabric operations */ | |
7476 | if (phba->cfg_fof) | |
7477 | lpfc_fof_queue_create(phba); | |
7478 | return 0; | |
7479 | ||
7480 | out_error: | |
7481 | lpfc_sli4_queue_destroy(phba); | |
7482 | return -ENOMEM; | |
7483 | } | |
7484 | ||
7485 | /** | |
7486 | * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues | |
7487 | * @phba: pointer to lpfc hba data structure. | |
7488 | * | |
7489 | * This routine is invoked to release all the SLI4 queues with the FCoE HBA | |
7490 | * operation. | |
7491 | * | |
7492 | * Return codes | |
7493 | * 0 - successful | |
7494 | * -ENOMEM - No available memory | |
7495 | * -EIO - The mailbox failed to complete successfully. | |
7496 | **/ | |
7497 | void | |
7498 | lpfc_sli4_queue_destroy(struct lpfc_hba *phba) | |
7499 | { | |
7500 | int idx; | |
7501 | ||
7502 | if (phba->cfg_fof) | |
7503 | lpfc_fof_queue_destroy(phba); | |
7504 | ||
7505 | if (phba->sli4_hba.hba_eq != NULL) { | |
7506 | /* Release HBA event queue */ | |
7507 | for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { | |
7508 | if (phba->sli4_hba.hba_eq[idx] != NULL) { | |
7509 | lpfc_sli4_queue_free( | |
7510 | phba->sli4_hba.hba_eq[idx]); | |
7511 | phba->sli4_hba.hba_eq[idx] = NULL; | |
7512 | } | |
7513 | } | |
7514 | kfree(phba->sli4_hba.hba_eq); | |
7515 | phba->sli4_hba.hba_eq = NULL; | |
7516 | } | |
7517 | ||
7518 | if (phba->sli4_hba.fcp_cq != NULL) { | |
7519 | /* Release FCP completion queue */ | |
7520 | for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { | |
7521 | if (phba->sli4_hba.fcp_cq[idx] != NULL) { | |
7522 | lpfc_sli4_queue_free( | |
7523 | phba->sli4_hba.fcp_cq[idx]); | |
7524 | phba->sli4_hba.fcp_cq[idx] = NULL; | |
7525 | } | |
7526 | } | |
7527 | kfree(phba->sli4_hba.fcp_cq); | |
7528 | phba->sli4_hba.fcp_cq = NULL; | |
7529 | } | |
7530 | ||
7531 | if (phba->sli4_hba.fcp_wq != NULL) { | |
7532 | /* Release FCP work queue */ | |
7533 | for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { | |
7534 | if (phba->sli4_hba.fcp_wq[idx] != NULL) { | |
7535 | lpfc_sli4_queue_free( | |
7536 | phba->sli4_hba.fcp_wq[idx]); | |
7537 | phba->sli4_hba.fcp_wq[idx] = NULL; | |
7538 | } | |
7539 | } | |
7540 | kfree(phba->sli4_hba.fcp_wq); | |
7541 | phba->sli4_hba.fcp_wq = NULL; | |
7542 | } | |
7543 | ||
7544 | /* Release FCP CQ mapping array */ | |
7545 | if (phba->sli4_hba.fcp_cq_map != NULL) { | |
7546 | kfree(phba->sli4_hba.fcp_cq_map); | |
7547 | phba->sli4_hba.fcp_cq_map = NULL; | |
7548 | } | |
7549 | ||
7550 | /* Release mailbox command work queue */ | |
7551 | if (phba->sli4_hba.mbx_wq != NULL) { | |
7552 | lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); | |
7553 | phba->sli4_hba.mbx_wq = NULL; | |
7554 | } | |
7555 | ||
7556 | /* Release ELS work queue */ | |
7557 | if (phba->sli4_hba.els_wq != NULL) { | |
7558 | lpfc_sli4_queue_free(phba->sli4_hba.els_wq); | |
7559 | phba->sli4_hba.els_wq = NULL; | |
7560 | } | |
7561 | ||
7562 | /* Release unsolicited receive queue */ | |
7563 | if (phba->sli4_hba.hdr_rq != NULL) { | |
7564 | lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); | |
7565 | phba->sli4_hba.hdr_rq = NULL; | |
7566 | } | |
7567 | if (phba->sli4_hba.dat_rq != NULL) { | |
7568 | lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); | |
7569 | phba->sli4_hba.dat_rq = NULL; | |
7570 | } | |
7571 | ||
7572 | /* Release ELS complete queue */ | |
7573 | if (phba->sli4_hba.els_cq != NULL) { | |
7574 | lpfc_sli4_queue_free(phba->sli4_hba.els_cq); | |
7575 | phba->sli4_hba.els_cq = NULL; | |
7576 | } | |
7577 | ||
7578 | /* Release mailbox command complete queue */ | |
7579 | if (phba->sli4_hba.mbx_cq != NULL) { | |
7580 | lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); | |
7581 | phba->sli4_hba.mbx_cq = NULL; | |
7582 | } | |
7583 | ||
7584 | return; | |
7585 | } | |
7586 | ||
7587 | /** | |
7588 | * lpfc_sli4_queue_setup - Set up all the SLI4 queues | |
7589 | * @phba: pointer to lpfc hba data structure. | |
7590 | * | |
7591 | * This routine is invoked to set up all the SLI4 queues for the FCoE HBA | |
7592 | * operation. | |
7593 | * | |
7594 | * Return codes | |
7595 | * 0 - successful | |
7596 | * -ENOMEM - No available memory | |
7597 | * -EIO - The mailbox failed to complete successfully. | |
7598 | **/ | |
7599 | int | |
7600 | lpfc_sli4_queue_setup(struct lpfc_hba *phba) | |
7601 | { | |
7602 | struct lpfc_sli *psli = &phba->sli; | |
7603 | struct lpfc_sli_ring *pring; | |
7604 | int rc = -ENOMEM; | |
7605 | int fcp_eqidx, fcp_cqidx, fcp_wqidx; | |
7606 | int fcp_cq_index = 0; | |
7607 | uint32_t shdr_status, shdr_add_status; | |
7608 | union lpfc_sli4_cfg_shdr *shdr; | |
7609 | LPFC_MBOXQ_t *mboxq; | |
7610 | uint32_t length; | |
7611 | ||
7612 | /* Check for dual-ULP support */ | |
7613 | mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
7614 | if (!mboxq) { | |
7615 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7616 | "3249 Unable to allocate memory for " | |
7617 | "QUERY_FW_CFG mailbox command\n"); | |
7618 | return -ENOMEM; | |
7619 | } | |
7620 | length = (sizeof(struct lpfc_mbx_query_fw_config) - | |
7621 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
7622 | lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, | |
7623 | LPFC_MBOX_OPCODE_QUERY_FW_CFG, | |
7624 | length, LPFC_SLI4_MBX_EMBED); | |
7625 | ||
7626 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
7627 | ||
7628 | shdr = (union lpfc_sli4_cfg_shdr *) | |
7629 | &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; | |
7630 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
7631 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
7632 | if (shdr_status || shdr_add_status || rc) { | |
7633 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7634 | "3250 QUERY_FW_CFG mailbox failed with status " | |
7635 | "x%x add_status x%x, mbx status x%x\n", | |
7636 | shdr_status, shdr_add_status, rc); | |
7637 | if (rc != MBX_TIMEOUT) | |
7638 | mempool_free(mboxq, phba->mbox_mem_pool); | |
7639 | rc = -ENXIO; | |
7640 | goto out_error; | |
7641 | } | |
7642 | ||
7643 | phba->sli4_hba.fw_func_mode = | |
7644 | mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; | |
7645 | phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; | |
7646 | phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; | |
7647 | phba->sli4_hba.physical_port = | |
7648 | mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port; | |
7649 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7650 | "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " | |
7651 | "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, | |
7652 | phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); | |
7653 | ||
7654 | if (rc != MBX_TIMEOUT) | |
7655 | mempool_free(mboxq, phba->mbox_mem_pool); | |
7656 | ||
7657 | /* | |
7658 | * Set up HBA Event Queues (EQs) | |
7659 | */ | |
7660 | ||
7661 | /* Set up HBA event queue */ | |
7662 | if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) { | |
7663 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7664 | "3147 Fast-path EQs not allocated\n"); | |
7665 | rc = -ENOMEM; | |
7666 | goto out_error; | |
7667 | } | |
7668 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) { | |
7669 | if (!phba->sli4_hba.hba_eq[fcp_eqidx]) { | |
7670 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7671 | "0522 Fast-path EQ (%d) not " | |
7672 | "allocated\n", fcp_eqidx); | |
7673 | rc = -ENOMEM; | |
7674 | goto out_destroy_hba_eq; | |
7675 | } | |
7676 | rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx], | |
7677 | (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel)); | |
7678 | if (rc) { | |
7679 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7680 | "0523 Failed setup of fast-path EQ " | |
7681 | "(%d), rc = 0x%x\n", fcp_eqidx, | |
7682 | (uint32_t)rc); | |
7683 | goto out_destroy_hba_eq; | |
7684 | } | |
7685 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7686 | "2584 HBA EQ setup: " | |
7687 | "queue[%d]-id=%d\n", fcp_eqidx, | |
7688 | phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id); | |
7689 | } | |
7690 | ||
7691 | /* Set up fast-path FCP Response Complete Queue */ | |
7692 | if (!phba->sli4_hba.fcp_cq) { | |
7693 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7694 | "3148 Fast-path FCP CQ array not " | |
7695 | "allocated\n"); | |
7696 | rc = -ENOMEM; | |
7697 | goto out_destroy_hba_eq; | |
7698 | } | |
7699 | ||
7700 | for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) { | |
7701 | if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { | |
7702 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7703 | "0526 Fast-path FCP CQ (%d) not " | |
7704 | "allocated\n", fcp_cqidx); | |
7705 | rc = -ENOMEM; | |
7706 | goto out_destroy_fcp_cq; | |
7707 | } | |
7708 | rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], | |
7709 | phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP); | |
7710 | if (rc) { | |
7711 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7712 | "0527 Failed setup of fast-path FCP " | |
7713 | "CQ (%d), rc = 0x%x\n", fcp_cqidx, | |
7714 | (uint32_t)rc); | |
7715 | goto out_destroy_fcp_cq; | |
7716 | } | |
7717 | ||
7718 | /* Setup fcp_cq_map for fast lookup */ | |
7719 | phba->sli4_hba.fcp_cq_map[fcp_cqidx] = | |
7720 | phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id; | |
7721 | ||
7722 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7723 | "2588 FCP CQ setup: cq[%d]-id=%d, " | |
7724 | "parent seq[%d]-id=%d\n", | |
7725 | fcp_cqidx, | |
7726 | phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, | |
7727 | fcp_cqidx, | |
7728 | phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id); | |
7729 | } | |
7730 | ||
7731 | /* Set up fast-path FCP Work Queue */ | |
7732 | if (!phba->sli4_hba.fcp_wq) { | |
7733 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7734 | "3149 Fast-path FCP WQ array not " | |
7735 | "allocated\n"); | |
7736 | rc = -ENOMEM; | |
7737 | goto out_destroy_fcp_cq; | |
7738 | } | |
7739 | ||
7740 | for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) { | |
7741 | if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { | |
7742 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7743 | "0534 Fast-path FCP WQ (%d) not " | |
7744 | "allocated\n", fcp_wqidx); | |
7745 | rc = -ENOMEM; | |
7746 | goto out_destroy_fcp_wq; | |
7747 | } | |
7748 | rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], | |
7749 | phba->sli4_hba.fcp_cq[fcp_wqidx], | |
7750 | LPFC_FCP); | |
7751 | if (rc) { | |
7752 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7753 | "0535 Failed setup of fast-path FCP " | |
7754 | "WQ (%d), rc = 0x%x\n", fcp_wqidx, | |
7755 | (uint32_t)rc); | |
7756 | goto out_destroy_fcp_wq; | |
7757 | } | |
7758 | ||
7759 | /* Bind this WQ to the next FCP ring */ | |
7760 | pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx]; | |
7761 | pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx]; | |
7762 | phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring; | |
7763 | ||
7764 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7765 | "2591 FCP WQ setup: wq[%d]-id=%d, " | |
7766 | "parent cq[%d]-id=%d\n", | |
7767 | fcp_wqidx, | |
7768 | phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, | |
7769 | fcp_cq_index, | |
7770 | phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id); | |
7771 | } | |
7772 | /* | |
7773 | * Set up Complete Queues (CQs) | |
7774 | */ | |
7775 | ||
7776 | /* Set up slow-path MBOX Complete Queue as the first CQ */ | |
7777 | if (!phba->sli4_hba.mbx_cq) { | |
7778 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7779 | "0528 Mailbox CQ not allocated\n"); | |
7780 | rc = -ENOMEM; | |
7781 | goto out_destroy_fcp_wq; | |
7782 | } | |
7783 | rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, | |
7784 | phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX); | |
7785 | if (rc) { | |
7786 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7787 | "0529 Failed setup of slow-path mailbox CQ: " | |
7788 | "rc = 0x%x\n", (uint32_t)rc); | |
7789 | goto out_destroy_fcp_wq; | |
7790 | } | |
7791 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7792 | "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", | |
7793 | phba->sli4_hba.mbx_cq->queue_id, | |
7794 | phba->sli4_hba.hba_eq[0]->queue_id); | |
7795 | ||
7796 | /* Set up slow-path ELS Complete Queue */ | |
7797 | if (!phba->sli4_hba.els_cq) { | |
7798 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7799 | "0530 ELS CQ not allocated\n"); | |
7800 | rc = -ENOMEM; | |
7801 | goto out_destroy_mbx_cq; | |
7802 | } | |
7803 | rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, | |
7804 | phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS); | |
7805 | if (rc) { | |
7806 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7807 | "0531 Failed setup of slow-path ELS CQ: " | |
7808 | "rc = 0x%x\n", (uint32_t)rc); | |
7809 | goto out_destroy_mbx_cq; | |
7810 | } | |
7811 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7812 | "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", | |
7813 | phba->sli4_hba.els_cq->queue_id, | |
7814 | phba->sli4_hba.hba_eq[0]->queue_id); | |
7815 | ||
7816 | /* | |
7817 | * Set up all the Work Queues (WQs) | |
7818 | */ | |
7819 | ||
7820 | /* Set up Mailbox Command Queue */ | |
7821 | if (!phba->sli4_hba.mbx_wq) { | |
7822 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7823 | "0538 Slow-path MQ not allocated\n"); | |
7824 | rc = -ENOMEM; | |
7825 | goto out_destroy_els_cq; | |
7826 | } | |
7827 | rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, | |
7828 | phba->sli4_hba.mbx_cq, LPFC_MBOX); | |
7829 | if (rc) { | |
7830 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7831 | "0539 Failed setup of slow-path MQ: " | |
7832 | "rc = 0x%x\n", rc); | |
7833 | goto out_destroy_els_cq; | |
7834 | } | |
7835 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7836 | "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", | |
7837 | phba->sli4_hba.mbx_wq->queue_id, | |
7838 | phba->sli4_hba.mbx_cq->queue_id); | |
7839 | ||
7840 | /* Set up slow-path ELS Work Queue */ | |
7841 | if (!phba->sli4_hba.els_wq) { | |
7842 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7843 | "0536 Slow-path ELS WQ not allocated\n"); | |
7844 | rc = -ENOMEM; | |
7845 | goto out_destroy_mbx_wq; | |
7846 | } | |
7847 | rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, | |
7848 | phba->sli4_hba.els_cq, LPFC_ELS); | |
7849 | if (rc) { | |
7850 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7851 | "0537 Failed setup of slow-path ELS WQ: " | |
7852 | "rc = 0x%x\n", (uint32_t)rc); | |
7853 | goto out_destroy_mbx_wq; | |
7854 | } | |
7855 | ||
7856 | /* Bind this WQ to the ELS ring */ | |
7857 | pring = &psli->ring[LPFC_ELS_RING]; | |
7858 | pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq; | |
7859 | phba->sli4_hba.els_cq->pring = pring; | |
7860 | ||
7861 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7862 | "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", | |
7863 | phba->sli4_hba.els_wq->queue_id, | |
7864 | phba->sli4_hba.els_cq->queue_id); | |
7865 | ||
7866 | /* | |
7867 | * Create Receive Queue (RQ) | |
7868 | */ | |
7869 | if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { | |
7870 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7871 | "0540 Receive Queue not allocated\n"); | |
7872 | rc = -ENOMEM; | |
7873 | goto out_destroy_els_wq; | |
7874 | } | |
7875 | ||
7876 | lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ); | |
7877 | lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ); | |
7878 | ||
7879 | rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, | |
7880 | phba->sli4_hba.els_cq, LPFC_USOL); | |
7881 | if (rc) { | |
7882 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7883 | "0541 Failed setup of Receive Queue: " | |
7884 | "rc = 0x%x\n", (uint32_t)rc); | |
7885 | goto out_destroy_fcp_wq; | |
7886 | } | |
7887 | ||
7888 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7889 | "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " | |
7890 | "parent cq-id=%d\n", | |
7891 | phba->sli4_hba.hdr_rq->queue_id, | |
7892 | phba->sli4_hba.dat_rq->queue_id, | |
7893 | phba->sli4_hba.els_cq->queue_id); | |
7894 | ||
7895 | if (phba->cfg_fof) { | |
7896 | rc = lpfc_fof_queue_setup(phba); | |
7897 | if (rc) { | |
7898 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7899 | "0549 Failed setup of FOF Queues: " | |
7900 | "rc = 0x%x\n", rc); | |
7901 | goto out_destroy_els_rq; | |
7902 | } | |
7903 | } | |
7904 | ||
7905 | /* | |
7906 | * Configure EQ delay multipier for interrupt coalescing using | |
7907 | * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time. | |
7908 | */ | |
7909 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; | |
7910 | fcp_eqidx += LPFC_MAX_EQ_DELAY) | |
7911 | lpfc_modify_fcp_eq_delay(phba, fcp_eqidx); | |
7912 | return 0; | |
7913 | ||
7914 | out_destroy_els_rq: | |
7915 | lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); | |
7916 | out_destroy_els_wq: | |
7917 | lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); | |
7918 | out_destroy_mbx_wq: | |
7919 | lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); | |
7920 | out_destroy_els_cq: | |
7921 | lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); | |
7922 | out_destroy_mbx_cq: | |
7923 | lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); | |
7924 | out_destroy_fcp_wq: | |
7925 | for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) | |
7926 | lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); | |
7927 | out_destroy_fcp_cq: | |
7928 | for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) | |
7929 | lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); | |
7930 | out_destroy_hba_eq: | |
7931 | for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) | |
7932 | lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]); | |
7933 | out_error: | |
7934 | return rc; | |
7935 | } | |
7936 | ||
7937 | /** | |
7938 | * lpfc_sli4_queue_unset - Unset all the SLI4 queues | |
7939 | * @phba: pointer to lpfc hba data structure. | |
7940 | * | |
7941 | * This routine is invoked to unset all the SLI4 queues with the FCoE HBA | |
7942 | * operation. | |
7943 | * | |
7944 | * Return codes | |
7945 | * 0 - successful | |
7946 | * -ENOMEM - No available memory | |
7947 | * -EIO - The mailbox failed to complete successfully. | |
7948 | **/ | |
7949 | void | |
7950 | lpfc_sli4_queue_unset(struct lpfc_hba *phba) | |
7951 | { | |
7952 | int fcp_qidx; | |
7953 | ||
7954 | /* Unset the queues created for Flash Optimized Fabric operations */ | |
7955 | if (phba->cfg_fof) | |
7956 | lpfc_fof_queue_destroy(phba); | |
7957 | /* Unset mailbox command work queue */ | |
7958 | lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); | |
7959 | /* Unset ELS work queue */ | |
7960 | lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); | |
7961 | /* Unset unsolicited receive queue */ | |
7962 | lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); | |
7963 | /* Unset FCP work queue */ | |
7964 | if (phba->sli4_hba.fcp_wq) { | |
7965 | for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; | |
7966 | fcp_qidx++) | |
7967 | lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); | |
7968 | } | |
7969 | /* Unset mailbox command complete queue */ | |
7970 | lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); | |
7971 | /* Unset ELS complete queue */ | |
7972 | lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); | |
7973 | /* Unset FCP response complete queue */ | |
7974 | if (phba->sli4_hba.fcp_cq) { | |
7975 | for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; | |
7976 | fcp_qidx++) | |
7977 | lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); | |
7978 | } | |
7979 | /* Unset fast-path event queue */ | |
7980 | if (phba->sli4_hba.hba_eq) { | |
7981 | for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; | |
7982 | fcp_qidx++) | |
7983 | lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]); | |
7984 | } | |
7985 | } | |
7986 | ||
7987 | /** | |
7988 | * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool | |
7989 | * @phba: pointer to lpfc hba data structure. | |
7990 | * | |
7991 | * This routine is invoked to allocate and set up a pool of completion queue | |
7992 | * events. The body of the completion queue event is a completion queue entry | |
7993 | * CQE. For now, this pool is used for the interrupt service routine to queue | |
7994 | * the following HBA completion queue events for the worker thread to process: | |
7995 | * - Mailbox asynchronous events | |
7996 | * - Receive queue completion unsolicited events | |
7997 | * Later, this can be used for all the slow-path events. | |
7998 | * | |
7999 | * Return codes | |
8000 | * 0 - successful | |
8001 | * -ENOMEM - No available memory | |
8002 | **/ | |
8003 | static int | |
8004 | lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) | |
8005 | { | |
8006 | struct lpfc_cq_event *cq_event; | |
8007 | int i; | |
8008 | ||
8009 | for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { | |
8010 | cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); | |
8011 | if (!cq_event) | |
8012 | goto out_pool_create_fail; | |
8013 | list_add_tail(&cq_event->list, | |
8014 | &phba->sli4_hba.sp_cqe_event_pool); | |
8015 | } | |
8016 | return 0; | |
8017 | ||
8018 | out_pool_create_fail: | |
8019 | lpfc_sli4_cq_event_pool_destroy(phba); | |
8020 | return -ENOMEM; | |
8021 | } | |
8022 | ||
8023 | /** | |
8024 | * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool | |
8025 | * @phba: pointer to lpfc hba data structure. | |
8026 | * | |
8027 | * This routine is invoked to free the pool of completion queue events at | |
8028 | * driver unload time. Note that, it is the responsibility of the driver | |
8029 | * cleanup routine to free all the outstanding completion-queue events | |
8030 | * allocated from this pool back into the pool before invoking this routine | |
8031 | * to destroy the pool. | |
8032 | **/ | |
8033 | static void | |
8034 | lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) | |
8035 | { | |
8036 | struct lpfc_cq_event *cq_event, *next_cq_event; | |
8037 | ||
8038 | list_for_each_entry_safe(cq_event, next_cq_event, | |
8039 | &phba->sli4_hba.sp_cqe_event_pool, list) { | |
8040 | list_del(&cq_event->list); | |
8041 | kfree(cq_event); | |
8042 | } | |
8043 | } | |
8044 | ||
8045 | /** | |
8046 | * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool | |
8047 | * @phba: pointer to lpfc hba data structure. | |
8048 | * | |
8049 | * This routine is the lock free version of the API invoked to allocate a | |
8050 | * completion-queue event from the free pool. | |
8051 | * | |
8052 | * Return: Pointer to the newly allocated completion-queue event if successful | |
8053 | * NULL otherwise. | |
8054 | **/ | |
8055 | struct lpfc_cq_event * | |
8056 | __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) | |
8057 | { | |
8058 | struct lpfc_cq_event *cq_event = NULL; | |
8059 | ||
8060 | list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, | |
8061 | struct lpfc_cq_event, list); | |
8062 | return cq_event; | |
8063 | } | |
8064 | ||
8065 | /** | |
8066 | * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool | |
8067 | * @phba: pointer to lpfc hba data structure. | |
8068 | * | |
8069 | * This routine is the lock version of the API invoked to allocate a | |
8070 | * completion-queue event from the free pool. | |
8071 | * | |
8072 | * Return: Pointer to the newly allocated completion-queue event if successful | |
8073 | * NULL otherwise. | |
8074 | **/ | |
8075 | struct lpfc_cq_event * | |
8076 | lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) | |
8077 | { | |
8078 | struct lpfc_cq_event *cq_event; | |
8079 | unsigned long iflags; | |
8080 | ||
8081 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8082 | cq_event = __lpfc_sli4_cq_event_alloc(phba); | |
8083 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8084 | return cq_event; | |
8085 | } | |
8086 | ||
8087 | /** | |
8088 | * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool | |
8089 | * @phba: pointer to lpfc hba data structure. | |
8090 | * @cq_event: pointer to the completion queue event to be freed. | |
8091 | * | |
8092 | * This routine is the lock free version of the API invoked to release a | |
8093 | * completion-queue event back into the free pool. | |
8094 | **/ | |
8095 | void | |
8096 | __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, | |
8097 | struct lpfc_cq_event *cq_event) | |
8098 | { | |
8099 | list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); | |
8100 | } | |
8101 | ||
8102 | /** | |
8103 | * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool | |
8104 | * @phba: pointer to lpfc hba data structure. | |
8105 | * @cq_event: pointer to the completion queue event to be freed. | |
8106 | * | |
8107 | * This routine is the lock version of the API invoked to release a | |
8108 | * completion-queue event back into the free pool. | |
8109 | **/ | |
8110 | void | |
8111 | lpfc_sli4_cq_event_release(struct lpfc_hba *phba, | |
8112 | struct lpfc_cq_event *cq_event) | |
8113 | { | |
8114 | unsigned long iflags; | |
8115 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8116 | __lpfc_sli4_cq_event_release(phba, cq_event); | |
8117 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8118 | } | |
8119 | ||
8120 | /** | |
8121 | * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool | |
8122 | * @phba: pointer to lpfc hba data structure. | |
8123 | * | |
8124 | * This routine is to free all the pending completion-queue events to the | |
8125 | * back into the free pool for device reset. | |
8126 | **/ | |
8127 | static void | |
8128 | lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) | |
8129 | { | |
8130 | LIST_HEAD(cqelist); | |
8131 | struct lpfc_cq_event *cqe; | |
8132 | unsigned long iflags; | |
8133 | ||
8134 | /* Retrieve all the pending WCQEs from pending WCQE lists */ | |
8135 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8136 | /* Pending FCP XRI abort events */ | |
8137 | list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, | |
8138 | &cqelist); | |
8139 | /* Pending ELS XRI abort events */ | |
8140 | list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, | |
8141 | &cqelist); | |
8142 | /* Pending asynnc events */ | |
8143 | list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, | |
8144 | &cqelist); | |
8145 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8146 | ||
8147 | while (!list_empty(&cqelist)) { | |
8148 | list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); | |
8149 | lpfc_sli4_cq_event_release(phba, cqe); | |
8150 | } | |
8151 | } | |
8152 | ||
8153 | /** | |
8154 | * lpfc_pci_function_reset - Reset pci function. | |
8155 | * @phba: pointer to lpfc hba data structure. | |
8156 | * | |
8157 | * This routine is invoked to request a PCI function reset. It will destroys | |
8158 | * all resources assigned to the PCI function which originates this request. | |
8159 | * | |
8160 | * Return codes | |
8161 | * 0 - successful | |
8162 | * -ENOMEM - No available memory | |
8163 | * -EIO - The mailbox failed to complete successfully. | |
8164 | **/ | |
8165 | int | |
8166 | lpfc_pci_function_reset(struct lpfc_hba *phba) | |
8167 | { | |
8168 | LPFC_MBOXQ_t *mboxq; | |
8169 | uint32_t rc = 0, if_type; | |
8170 | uint32_t shdr_status, shdr_add_status; | |
8171 | uint32_t rdy_chk; | |
8172 | uint32_t port_reset = 0; | |
8173 | union lpfc_sli4_cfg_shdr *shdr; | |
8174 | struct lpfc_register reg_data; | |
8175 | uint16_t devid; | |
8176 | ||
8177 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); | |
8178 | switch (if_type) { | |
8179 | case LPFC_SLI_INTF_IF_TYPE_0: | |
8180 | mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, | |
8181 | GFP_KERNEL); | |
8182 | if (!mboxq) { | |
8183 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8184 | "0494 Unable to allocate memory for " | |
8185 | "issuing SLI_FUNCTION_RESET mailbox " | |
8186 | "command\n"); | |
8187 | return -ENOMEM; | |
8188 | } | |
8189 | ||
8190 | /* Setup PCI function reset mailbox-ioctl command */ | |
8191 | lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, | |
8192 | LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, | |
8193 | LPFC_SLI4_MBX_EMBED); | |
8194 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
8195 | shdr = (union lpfc_sli4_cfg_shdr *) | |
8196 | &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; | |
8197 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
8198 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, | |
8199 | &shdr->response); | |
8200 | if (rc != MBX_TIMEOUT) | |
8201 | mempool_free(mboxq, phba->mbox_mem_pool); | |
8202 | if (shdr_status || shdr_add_status || rc) { | |
8203 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8204 | "0495 SLI_FUNCTION_RESET mailbox " | |
8205 | "failed with status x%x add_status x%x," | |
8206 | " mbx status x%x\n", | |
8207 | shdr_status, shdr_add_status, rc); | |
8208 | rc = -ENXIO; | |
8209 | } | |
8210 | break; | |
8211 | case LPFC_SLI_INTF_IF_TYPE_2: | |
8212 | wait: | |
8213 | /* | |
8214 | * Poll the Port Status Register and wait for RDY for | |
8215 | * up to 30 seconds. If the port doesn't respond, treat | |
8216 | * it as an error. | |
8217 | */ | |
8218 | for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) { | |
8219 | if (lpfc_readl(phba->sli4_hba.u.if_type2. | |
8220 | STATUSregaddr, ®_data.word0)) { | |
8221 | rc = -ENODEV; | |
8222 | goto out; | |
8223 | } | |
8224 | if (bf_get(lpfc_sliport_status_rdy, ®_data)) | |
8225 | break; | |
8226 | msleep(20); | |
8227 | } | |
8228 | ||
8229 | if (!bf_get(lpfc_sliport_status_rdy, ®_data)) { | |
8230 | phba->work_status[0] = readl( | |
8231 | phba->sli4_hba.u.if_type2.ERR1regaddr); | |
8232 | phba->work_status[1] = readl( | |
8233 | phba->sli4_hba.u.if_type2.ERR2regaddr); | |
8234 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8235 | "2890 Port not ready, port status reg " | |
8236 | "0x%x error 1=0x%x, error 2=0x%x\n", | |
8237 | reg_data.word0, | |
8238 | phba->work_status[0], | |
8239 | phba->work_status[1]); | |
8240 | rc = -ENODEV; | |
8241 | goto out; | |
8242 | } | |
8243 | ||
8244 | if (!port_reset) { | |
8245 | /* | |
8246 | * Reset the port now | |
8247 | */ | |
8248 | reg_data.word0 = 0; | |
8249 | bf_set(lpfc_sliport_ctrl_end, ®_data, | |
8250 | LPFC_SLIPORT_LITTLE_ENDIAN); | |
8251 | bf_set(lpfc_sliport_ctrl_ip, ®_data, | |
8252 | LPFC_SLIPORT_INIT_PORT); | |
8253 | writel(reg_data.word0, phba->sli4_hba.u.if_type2. | |
8254 | CTRLregaddr); | |
8255 | /* flush */ | |
8256 | pci_read_config_word(phba->pcidev, | |
8257 | PCI_DEVICE_ID, &devid); | |
8258 | ||
8259 | port_reset = 1; | |
8260 | msleep(20); | |
8261 | goto wait; | |
8262 | } else if (bf_get(lpfc_sliport_status_rn, ®_data)) { | |
8263 | rc = -ENODEV; | |
8264 | goto out; | |
8265 | } | |
8266 | break; | |
8267 | ||
8268 | case LPFC_SLI_INTF_IF_TYPE_1: | |
8269 | default: | |
8270 | break; | |
8271 | } | |
8272 | ||
8273 | out: | |
8274 | /* Catch the not-ready port failure after a port reset. */ | |
8275 | if (rc) { | |
8276 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8277 | "3317 HBA not functional: IP Reset Failed " | |
8278 | "try: echo fw_reset > board_mode\n"); | |
8279 | rc = -ENODEV; | |
8280 | } | |
8281 | ||
8282 | return rc; | |
8283 | } | |
8284 | ||
8285 | /** | |
8286 | * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. | |
8287 | * @phba: pointer to lpfc hba data structure. | |
8288 | * | |
8289 | * This routine is invoked to set up the PCI device memory space for device | |
8290 | * with SLI-4 interface spec. | |
8291 | * | |
8292 | * Return codes | |
8293 | * 0 - successful | |
8294 | * other values - error | |
8295 | **/ | |
8296 | static int | |
8297 | lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) | |
8298 | { | |
8299 | struct pci_dev *pdev; | |
8300 | unsigned long bar0map_len, bar1map_len, bar2map_len; | |
8301 | int error = -ENODEV; | |
8302 | uint32_t if_type; | |
8303 | ||
8304 | /* Obtain PCI device reference */ | |
8305 | if (!phba->pcidev) | |
8306 | return error; | |
8307 | else | |
8308 | pdev = phba->pcidev; | |
8309 | ||
8310 | /* Set the device DMA mask size */ | |
8311 | if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 | |
8312 | || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { | |
8313 | if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 | |
8314 | || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { | |
8315 | return error; | |
8316 | } | |
8317 | } | |
8318 | ||
8319 | /* | |
8320 | * The BARs and register set definitions and offset locations are | |
8321 | * dependent on the if_type. | |
8322 | */ | |
8323 | if (pci_read_config_dword(pdev, LPFC_SLI_INTF, | |
8324 | &phba->sli4_hba.sli_intf.word0)) { | |
8325 | return error; | |
8326 | } | |
8327 | ||
8328 | /* There is no SLI3 failback for SLI4 devices. */ | |
8329 | if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != | |
8330 | LPFC_SLI_INTF_VALID) { | |
8331 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8332 | "2894 SLI_INTF reg contents invalid " | |
8333 | "sli_intf reg 0x%x\n", | |
8334 | phba->sli4_hba.sli_intf.word0); | |
8335 | return error; | |
8336 | } | |
8337 | ||
8338 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); | |
8339 | /* | |
8340 | * Get the bus address of SLI4 device Bar regions and the | |
8341 | * number of bytes required by each mapping. The mapping of the | |
8342 | * particular PCI BARs regions is dependent on the type of | |
8343 | * SLI4 device. | |
8344 | */ | |
8345 | if (pci_resource_start(pdev, PCI_64BIT_BAR0)) { | |
8346 | phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0); | |
8347 | bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0); | |
8348 | ||
8349 | /* | |
8350 | * Map SLI4 PCI Config Space Register base to a kernel virtual | |
8351 | * addr | |
8352 | */ | |
8353 | phba->sli4_hba.conf_regs_memmap_p = | |
8354 | ioremap(phba->pci_bar0_map, bar0map_len); | |
8355 | if (!phba->sli4_hba.conf_regs_memmap_p) { | |
8356 | dev_printk(KERN_ERR, &pdev->dev, | |
8357 | "ioremap failed for SLI4 PCI config " | |
8358 | "registers.\n"); | |
8359 | goto out; | |
8360 | } | |
8361 | phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p; | |
8362 | /* Set up BAR0 PCI config space register memory map */ | |
8363 | lpfc_sli4_bar0_register_memmap(phba, if_type); | |
8364 | } else { | |
8365 | phba->pci_bar0_map = pci_resource_start(pdev, 1); | |
8366 | bar0map_len = pci_resource_len(pdev, 1); | |
8367 | if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { | |
8368 | dev_printk(KERN_ERR, &pdev->dev, | |
8369 | "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); | |
8370 | goto out; | |
8371 | } | |
8372 | phba->sli4_hba.conf_regs_memmap_p = | |
8373 | ioremap(phba->pci_bar0_map, bar0map_len); | |
8374 | if (!phba->sli4_hba.conf_regs_memmap_p) { | |
8375 | dev_printk(KERN_ERR, &pdev->dev, | |
8376 | "ioremap failed for SLI4 PCI config " | |
8377 | "registers.\n"); | |
8378 | goto out; | |
8379 | } | |
8380 | lpfc_sli4_bar0_register_memmap(phba, if_type); | |
8381 | } | |
8382 | ||
8383 | if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && | |
8384 | (pci_resource_start(pdev, PCI_64BIT_BAR2))) { | |
8385 | /* | |
8386 | * Map SLI4 if type 0 HBA Control Register base to a kernel | |
8387 | * virtual address and setup the registers. | |
8388 | */ | |
8389 | phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2); | |
8390 | bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); | |
8391 | phba->sli4_hba.ctrl_regs_memmap_p = | |
8392 | ioremap(phba->pci_bar1_map, bar1map_len); | |
8393 | if (!phba->sli4_hba.ctrl_regs_memmap_p) { | |
8394 | dev_printk(KERN_ERR, &pdev->dev, | |
8395 | "ioremap failed for SLI4 HBA control registers.\n"); | |
8396 | goto out_iounmap_conf; | |
8397 | } | |
8398 | phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p; | |
8399 | lpfc_sli4_bar1_register_memmap(phba); | |
8400 | } | |
8401 | ||
8402 | if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && | |
8403 | (pci_resource_start(pdev, PCI_64BIT_BAR4))) { | |
8404 | /* | |
8405 | * Map SLI4 if type 0 HBA Doorbell Register base to a kernel | |
8406 | * virtual address and setup the registers. | |
8407 | */ | |
8408 | phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4); | |
8409 | bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); | |
8410 | phba->sli4_hba.drbl_regs_memmap_p = | |
8411 | ioremap(phba->pci_bar2_map, bar2map_len); | |
8412 | if (!phba->sli4_hba.drbl_regs_memmap_p) { | |
8413 | dev_printk(KERN_ERR, &pdev->dev, | |
8414 | "ioremap failed for SLI4 HBA doorbell registers.\n"); | |
8415 | goto out_iounmap_ctrl; | |
8416 | } | |
8417 | phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p; | |
8418 | error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); | |
8419 | if (error) | |
8420 | goto out_iounmap_all; | |
8421 | } | |
8422 | ||
8423 | return 0; | |
8424 | ||
8425 | out_iounmap_all: | |
8426 | iounmap(phba->sli4_hba.drbl_regs_memmap_p); | |
8427 | out_iounmap_ctrl: | |
8428 | iounmap(phba->sli4_hba.ctrl_regs_memmap_p); | |
8429 | out_iounmap_conf: | |
8430 | iounmap(phba->sli4_hba.conf_regs_memmap_p); | |
8431 | out: | |
8432 | return error; | |
8433 | } | |
8434 | ||
8435 | /** | |
8436 | * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. | |
8437 | * @phba: pointer to lpfc hba data structure. | |
8438 | * | |
8439 | * This routine is invoked to unset the PCI device memory space for device | |
8440 | * with SLI-4 interface spec. | |
8441 | **/ | |
8442 | static void | |
8443 | lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) | |
8444 | { | |
8445 | uint32_t if_type; | |
8446 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); | |
8447 | ||
8448 | switch (if_type) { | |
8449 | case LPFC_SLI_INTF_IF_TYPE_0: | |
8450 | iounmap(phba->sli4_hba.drbl_regs_memmap_p); | |
8451 | iounmap(phba->sli4_hba.ctrl_regs_memmap_p); | |
8452 | iounmap(phba->sli4_hba.conf_regs_memmap_p); | |
8453 | break; | |
8454 | case LPFC_SLI_INTF_IF_TYPE_2: | |
8455 | iounmap(phba->sli4_hba.conf_regs_memmap_p); | |
8456 | break; | |
8457 | case LPFC_SLI_INTF_IF_TYPE_1: | |
8458 | default: | |
8459 | dev_printk(KERN_ERR, &phba->pcidev->dev, | |
8460 | "FATAL - unsupported SLI4 interface type - %d\n", | |
8461 | if_type); | |
8462 | break; | |
8463 | } | |
8464 | } | |
8465 | ||
8466 | /** | |
8467 | * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device | |
8468 | * @phba: pointer to lpfc hba data structure. | |
8469 | * | |
8470 | * This routine is invoked to enable the MSI-X interrupt vectors to device | |
8471 | * with SLI-3 interface specs. | |
8472 | * | |
8473 | * Return codes | |
8474 | * 0 - successful | |
8475 | * other values - error | |
8476 | **/ | |
8477 | static int | |
8478 | lpfc_sli_enable_msix(struct lpfc_hba *phba) | |
8479 | { | |
8480 | int rc; | |
8481 | LPFC_MBOXQ_t *pmb; | |
8482 | ||
8483 | /* Set up MSI-X multi-message vectors */ | |
8484 | rc = pci_alloc_irq_vectors(phba->pcidev, | |
8485 | LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX); | |
8486 | if (rc < 0) { | |
8487 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
8488 | "0420 PCI enable MSI-X failed (%d)\n", rc); | |
8489 | goto vec_fail_out; | |
8490 | } | |
8491 | ||
8492 | /* | |
8493 | * Assign MSI-X vectors to interrupt handlers | |
8494 | */ | |
8495 | ||
8496 | /* vector-0 is associated to slow-path handler */ | |
8497 | rc = request_irq(pci_irq_vector(phba->pcidev, 0), | |
8498 | &lpfc_sli_sp_intr_handler, 0, | |
8499 | LPFC_SP_DRIVER_HANDLER_NAME, phba); | |
8500 | if (rc) { | |
8501 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
8502 | "0421 MSI-X slow-path request_irq failed " | |
8503 | "(%d)\n", rc); | |
8504 | goto msi_fail_out; | |
8505 | } | |
8506 | ||
8507 | /* vector-1 is associated to fast-path handler */ | |
8508 | rc = request_irq(pci_irq_vector(phba->pcidev, 1), | |
8509 | &lpfc_sli_fp_intr_handler, 0, | |
8510 | LPFC_FP_DRIVER_HANDLER_NAME, phba); | |
8511 | ||
8512 | if (rc) { | |
8513 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
8514 | "0429 MSI-X fast-path request_irq failed " | |
8515 | "(%d)\n", rc); | |
8516 | goto irq_fail_out; | |
8517 | } | |
8518 | ||
8519 | /* | |
8520 | * Configure HBA MSI-X attention conditions to messages | |
8521 | */ | |
8522 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
8523 | ||
8524 | if (!pmb) { | |
8525 | rc = -ENOMEM; | |
8526 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8527 | "0474 Unable to allocate memory for issuing " | |
8528 | "MBOX_CONFIG_MSI command\n"); | |
8529 | goto mem_fail_out; | |
8530 | } | |
8531 | rc = lpfc_config_msi(phba, pmb); | |
8532 | if (rc) | |
8533 | goto mbx_fail_out; | |
8534 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
8535 | if (rc != MBX_SUCCESS) { | |
8536 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, | |
8537 | "0351 Config MSI mailbox command failed, " | |
8538 | "mbxCmd x%x, mbxStatus x%x\n", | |
8539 | pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); | |
8540 | goto mbx_fail_out; | |
8541 | } | |
8542 | ||
8543 | /* Free memory allocated for mailbox command */ | |
8544 | mempool_free(pmb, phba->mbox_mem_pool); | |
8545 | return rc; | |
8546 | ||
8547 | mbx_fail_out: | |
8548 | /* Free memory allocated for mailbox command */ | |
8549 | mempool_free(pmb, phba->mbox_mem_pool); | |
8550 | ||
8551 | mem_fail_out: | |
8552 | /* free the irq already requested */ | |
8553 | free_irq(pci_irq_vector(phba->pcidev, 1), phba); | |
8554 | ||
8555 | irq_fail_out: | |
8556 | /* free the irq already requested */ | |
8557 | free_irq(pci_irq_vector(phba->pcidev, 0), phba); | |
8558 | ||
8559 | msi_fail_out: | |
8560 | /* Unconfigure MSI-X capability structure */ | |
8561 | pci_free_irq_vectors(phba->pcidev); | |
8562 | ||
8563 | vec_fail_out: | |
8564 | return rc; | |
8565 | } | |
8566 | ||
8567 | /** | |
8568 | * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. | |
8569 | * @phba: pointer to lpfc hba data structure. | |
8570 | * | |
8571 | * This routine is invoked to enable the MSI interrupt mode to device with | |
8572 | * SLI-3 interface spec. The kernel function pci_enable_msi() is called to | |
8573 | * enable the MSI vector. The device driver is responsible for calling the | |
8574 | * request_irq() to register MSI vector with a interrupt the handler, which | |
8575 | * is done in this function. | |
8576 | * | |
8577 | * Return codes | |
8578 | * 0 - successful | |
8579 | * other values - error | |
8580 | */ | |
8581 | static int | |
8582 | lpfc_sli_enable_msi(struct lpfc_hba *phba) | |
8583 | { | |
8584 | int rc; | |
8585 | ||
8586 | rc = pci_enable_msi(phba->pcidev); | |
8587 | if (!rc) | |
8588 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
8589 | "0462 PCI enable MSI mode success.\n"); | |
8590 | else { | |
8591 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
8592 | "0471 PCI enable MSI mode failed (%d)\n", rc); | |
8593 | return rc; | |
8594 | } | |
8595 | ||
8596 | rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, | |
8597 | 0, LPFC_DRIVER_NAME, phba); | |
8598 | if (rc) { | |
8599 | pci_disable_msi(phba->pcidev); | |
8600 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
8601 | "0478 MSI request_irq failed (%d)\n", rc); | |
8602 | } | |
8603 | return rc; | |
8604 | } | |
8605 | ||
8606 | /** | |
8607 | * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. | |
8608 | * @phba: pointer to lpfc hba data structure. | |
8609 | * | |
8610 | * This routine is invoked to enable device interrupt and associate driver's | |
8611 | * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface | |
8612 | * spec. Depends on the interrupt mode configured to the driver, the driver | |
8613 | * will try to fallback from the configured interrupt mode to an interrupt | |
8614 | * mode which is supported by the platform, kernel, and device in the order | |
8615 | * of: | |
8616 | * MSI-X -> MSI -> IRQ. | |
8617 | * | |
8618 | * Return codes | |
8619 | * 0 - successful | |
8620 | * other values - error | |
8621 | **/ | |
8622 | static uint32_t | |
8623 | lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) | |
8624 | { | |
8625 | uint32_t intr_mode = LPFC_INTR_ERROR; | |
8626 | int retval; | |
8627 | ||
8628 | if (cfg_mode == 2) { | |
8629 | /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ | |
8630 | retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); | |
8631 | if (!retval) { | |
8632 | /* Now, try to enable MSI-X interrupt mode */ | |
8633 | retval = lpfc_sli_enable_msix(phba); | |
8634 | if (!retval) { | |
8635 | /* Indicate initialization to MSI-X mode */ | |
8636 | phba->intr_type = MSIX; | |
8637 | intr_mode = 2; | |
8638 | } | |
8639 | } | |
8640 | } | |
8641 | ||
8642 | /* Fallback to MSI if MSI-X initialization failed */ | |
8643 | if (cfg_mode >= 1 && phba->intr_type == NONE) { | |
8644 | retval = lpfc_sli_enable_msi(phba); | |
8645 | if (!retval) { | |
8646 | /* Indicate initialization to MSI mode */ | |
8647 | phba->intr_type = MSI; | |
8648 | intr_mode = 1; | |
8649 | } | |
8650 | } | |
8651 | ||
8652 | /* Fallback to INTx if both MSI-X/MSI initalization failed */ | |
8653 | if (phba->intr_type == NONE) { | |
8654 | retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, | |
8655 | IRQF_SHARED, LPFC_DRIVER_NAME, phba); | |
8656 | if (!retval) { | |
8657 | /* Indicate initialization to INTx mode */ | |
8658 | phba->intr_type = INTx; | |
8659 | intr_mode = 0; | |
8660 | } | |
8661 | } | |
8662 | return intr_mode; | |
8663 | } | |
8664 | ||
8665 | /** | |
8666 | * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. | |
8667 | * @phba: pointer to lpfc hba data structure. | |
8668 | * | |
8669 | * This routine is invoked to disable device interrupt and disassociate the | |
8670 | * driver's interrupt handler(s) from interrupt vector(s) to device with | |
8671 | * SLI-3 interface spec. Depending on the interrupt mode, the driver will | |
8672 | * release the interrupt vector(s) for the message signaled interrupt. | |
8673 | **/ | |
8674 | static void | |
8675 | lpfc_sli_disable_intr(struct lpfc_hba *phba) | |
8676 | { | |
8677 | int nr_irqs, i; | |
8678 | ||
8679 | if (phba->intr_type == MSIX) | |
8680 | nr_irqs = LPFC_MSIX_VECTORS; | |
8681 | else | |
8682 | nr_irqs = 1; | |
8683 | ||
8684 | for (i = 0; i < nr_irqs; i++) | |
8685 | free_irq(pci_irq_vector(phba->pcidev, i), phba); | |
8686 | pci_free_irq_vectors(phba->pcidev); | |
8687 | ||
8688 | /* Reset interrupt management states */ | |
8689 | phba->intr_type = NONE; | |
8690 | phba->sli.slistat.sli_intr = 0; | |
8691 | } | |
8692 | ||
8693 | /** | |
8694 | * lpfc_find_next_cpu - Find next available CPU that matches the phys_id | |
8695 | * @phba: pointer to lpfc hba data structure. | |
8696 | * | |
8697 | * Find next available CPU to use for IRQ to CPU affinity. | |
8698 | */ | |
8699 | static int | |
8700 | lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id) | |
8701 | { | |
8702 | struct lpfc_vector_map_info *cpup; | |
8703 | int cpu; | |
8704 | ||
8705 | cpup = phba->sli4_hba.cpu_map; | |
8706 | for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { | |
8707 | /* CPU must be online */ | |
8708 | if (cpu_online(cpu)) { | |
8709 | if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) && | |
8710 | (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) && | |
8711 | (cpup->phys_id == phys_id)) { | |
8712 | return cpu; | |
8713 | } | |
8714 | } | |
8715 | cpup++; | |
8716 | } | |
8717 | ||
8718 | /* | |
8719 | * If we get here, we have used ALL CPUs for the specific | |
8720 | * phys_id. Now we need to clear out lpfc_used_cpu and start | |
8721 | * reusing CPUs. | |
8722 | */ | |
8723 | ||
8724 | for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { | |
8725 | if (lpfc_used_cpu[cpu] == phys_id) | |
8726 | lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY; | |
8727 | } | |
8728 | ||
8729 | cpup = phba->sli4_hba.cpu_map; | |
8730 | for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { | |
8731 | /* CPU must be online */ | |
8732 | if (cpu_online(cpu)) { | |
8733 | if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) && | |
8734 | (cpup->phys_id == phys_id)) { | |
8735 | return cpu; | |
8736 | } | |
8737 | } | |
8738 | cpup++; | |
8739 | } | |
8740 | return LPFC_VECTOR_MAP_EMPTY; | |
8741 | } | |
8742 | ||
8743 | /** | |
8744 | * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors | |
8745 | * @phba: pointer to lpfc hba data structure. | |
8746 | * @vectors: number of HBA vectors | |
8747 | * | |
8748 | * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector | |
8749 | * affinization across multple physical CPUs (numa nodes). | |
8750 | * In addition, this routine will assign an IO channel for each CPU | |
8751 | * to use when issuing I/Os. | |
8752 | */ | |
8753 | static int | |
8754 | lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors) | |
8755 | { | |
8756 | int i, idx, saved_chann, used_chann, cpu, phys_id; | |
8757 | int max_phys_id, min_phys_id; | |
8758 | int num_io_channel, first_cpu, chan; | |
8759 | struct lpfc_vector_map_info *cpup; | |
8760 | #ifdef CONFIG_X86 | |
8761 | struct cpuinfo_x86 *cpuinfo; | |
8762 | #endif | |
8763 | uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1]; | |
8764 | ||
8765 | /* If there is no mapping, just return */ | |
8766 | if (!phba->cfg_fcp_cpu_map) | |
8767 | return 1; | |
8768 | ||
8769 | /* Init cpu_map array */ | |
8770 | memset(phba->sli4_hba.cpu_map, 0xff, | |
8771 | (sizeof(struct lpfc_vector_map_info) * | |
8772 | phba->sli4_hba.num_present_cpu)); | |
8773 | ||
8774 | max_phys_id = 0; | |
8775 | min_phys_id = 0xff; | |
8776 | phys_id = 0; | |
8777 | num_io_channel = 0; | |
8778 | first_cpu = LPFC_VECTOR_MAP_EMPTY; | |
8779 | ||
8780 | /* Update CPU map with physical id and core id of each CPU */ | |
8781 | cpup = phba->sli4_hba.cpu_map; | |
8782 | for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { | |
8783 | #ifdef CONFIG_X86 | |
8784 | cpuinfo = &cpu_data(cpu); | |
8785 | cpup->phys_id = cpuinfo->phys_proc_id; | |
8786 | cpup->core_id = cpuinfo->cpu_core_id; | |
8787 | #else | |
8788 | /* No distinction between CPUs for other platforms */ | |
8789 | cpup->phys_id = 0; | |
8790 | cpup->core_id = 0; | |
8791 | #endif | |
8792 | ||
8793 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
8794 | "3328 CPU physid %d coreid %d\n", | |
8795 | cpup->phys_id, cpup->core_id); | |
8796 | ||
8797 | if (cpup->phys_id > max_phys_id) | |
8798 | max_phys_id = cpup->phys_id; | |
8799 | if (cpup->phys_id < min_phys_id) | |
8800 | min_phys_id = cpup->phys_id; | |
8801 | cpup++; | |
8802 | } | |
8803 | ||
8804 | phys_id = min_phys_id; | |
8805 | /* Now associate the HBA vectors with specific CPUs */ | |
8806 | for (idx = 0; idx < vectors; idx++) { | |
8807 | cpup = phba->sli4_hba.cpu_map; | |
8808 | cpu = lpfc_find_next_cpu(phba, phys_id); | |
8809 | if (cpu == LPFC_VECTOR_MAP_EMPTY) { | |
8810 | ||
8811 | /* Try for all phys_id's */ | |
8812 | for (i = 1; i < max_phys_id; i++) { | |
8813 | phys_id++; | |
8814 | if (phys_id > max_phys_id) | |
8815 | phys_id = min_phys_id; | |
8816 | cpu = lpfc_find_next_cpu(phba, phys_id); | |
8817 | if (cpu == LPFC_VECTOR_MAP_EMPTY) | |
8818 | continue; | |
8819 | goto found; | |
8820 | } | |
8821 | ||
8822 | /* Use round robin for scheduling */ | |
8823 | phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN; | |
8824 | chan = 0; | |
8825 | cpup = phba->sli4_hba.cpu_map; | |
8826 | for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { | |
8827 | cpup->channel_id = chan; | |
8828 | cpup++; | |
8829 | chan++; | |
8830 | if (chan >= phba->cfg_fcp_io_channel) | |
8831 | chan = 0; | |
8832 | } | |
8833 | ||
8834 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8835 | "3329 Cannot set affinity:" | |
8836 | "Error mapping vector %d (%d)\n", | |
8837 | idx, vectors); | |
8838 | return 0; | |
8839 | } | |
8840 | found: | |
8841 | cpup += cpu; | |
8842 | if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP) | |
8843 | lpfc_used_cpu[cpu] = phys_id; | |
8844 | ||
8845 | /* Associate vector with selected CPU */ | |
8846 | cpup->irq = pci_irq_vector(phba->pcidev, idx); | |
8847 | ||
8848 | /* Associate IO channel with selected CPU */ | |
8849 | cpup->channel_id = idx; | |
8850 | num_io_channel++; | |
8851 | ||
8852 | if (first_cpu == LPFC_VECTOR_MAP_EMPTY) | |
8853 | first_cpu = cpu; | |
8854 | ||
8855 | /* Now affinitize to the selected CPU */ | |
8856 | i = irq_set_affinity_hint(pci_irq_vector(phba->pcidev, idx), | |
8857 | get_cpu_mask(cpu)); | |
8858 | ||
8859 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
8860 | "3330 Set Affinity: CPU %d channel %d " | |
8861 | "irq %d (%x)\n", | |
8862 | cpu, cpup->channel_id, | |
8863 | pci_irq_vector(phba->pcidev, idx), i); | |
8864 | ||
8865 | /* Spread vector mapping across multple physical CPU nodes */ | |
8866 | phys_id++; | |
8867 | if (phys_id > max_phys_id) | |
8868 | phys_id = min_phys_id; | |
8869 | } | |
8870 | ||
8871 | /* | |
8872 | * Finally fill in the IO channel for any remaining CPUs. | |
8873 | * At this point, all IO channels have been assigned to a specific | |
8874 | * MSIx vector, mapped to a specific CPU. | |
8875 | * Base the remaining IO channel assigned, to IO channels already | |
8876 | * assigned to other CPUs on the same phys_id. | |
8877 | */ | |
8878 | for (i = min_phys_id; i <= max_phys_id; i++) { | |
8879 | /* | |
8880 | * If there are no io channels already mapped to | |
8881 | * this phys_id, just round robin thru the io_channels. | |
8882 | * Setup chann[] for round robin. | |
8883 | */ | |
8884 | for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) | |
8885 | chann[idx] = idx; | |
8886 | ||
8887 | saved_chann = 0; | |
8888 | used_chann = 0; | |
8889 | ||
8890 | /* | |
8891 | * First build a list of IO channels already assigned | |
8892 | * to this phys_id before reassigning the same IO | |
8893 | * channels to the remaining CPUs. | |
8894 | */ | |
8895 | cpup = phba->sli4_hba.cpu_map; | |
8896 | cpu = first_cpu; | |
8897 | cpup += cpu; | |
8898 | for (idx = 0; idx < phba->sli4_hba.num_present_cpu; | |
8899 | idx++) { | |
8900 | if (cpup->phys_id == i) { | |
8901 | /* | |
8902 | * Save any IO channels that are | |
8903 | * already mapped to this phys_id. | |
8904 | */ | |
8905 | if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) { | |
8906 | if (saved_chann <= | |
8907 | LPFC_FCP_IO_CHAN_MAX) { | |
8908 | chann[saved_chann] = | |
8909 | cpup->channel_id; | |
8910 | saved_chann++; | |
8911 | } | |
8912 | goto out; | |
8913 | } | |
8914 | ||
8915 | /* See if we are using round-robin */ | |
8916 | if (saved_chann == 0) | |
8917 | saved_chann = | |
8918 | phba->cfg_fcp_io_channel; | |
8919 | ||
8920 | /* Associate next IO channel with CPU */ | |
8921 | cpup->channel_id = chann[used_chann]; | |
8922 | num_io_channel++; | |
8923 | used_chann++; | |
8924 | if (used_chann == saved_chann) | |
8925 | used_chann = 0; | |
8926 | ||
8927 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
8928 | "3331 Set IO_CHANN " | |
8929 | "CPU %d channel %d\n", | |
8930 | idx, cpup->channel_id); | |
8931 | } | |
8932 | out: | |
8933 | cpu++; | |
8934 | if (cpu >= phba->sli4_hba.num_present_cpu) { | |
8935 | cpup = phba->sli4_hba.cpu_map; | |
8936 | cpu = 0; | |
8937 | } else { | |
8938 | cpup++; | |
8939 | } | |
8940 | } | |
8941 | } | |
8942 | ||
8943 | if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) { | |
8944 | cpup = phba->sli4_hba.cpu_map; | |
8945 | for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) { | |
8946 | if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) { | |
8947 | cpup->channel_id = 0; | |
8948 | num_io_channel++; | |
8949 | ||
8950 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
8951 | "3332 Assign IO_CHANN " | |
8952 | "CPU %d channel %d\n", | |
8953 | idx, cpup->channel_id); | |
8954 | } | |
8955 | cpup++; | |
8956 | } | |
8957 | } | |
8958 | ||
8959 | /* Sanity check */ | |
8960 | if (num_io_channel != phba->sli4_hba.num_present_cpu) | |
8961 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8962 | "3333 Set affinity mismatch:" | |
8963 | "%d chann != %d cpus: %d vectors\n", | |
8964 | num_io_channel, phba->sli4_hba.num_present_cpu, | |
8965 | vectors); | |
8966 | ||
8967 | /* Enable using cpu affinity for scheduling */ | |
8968 | phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU; | |
8969 | return 1; | |
8970 | } | |
8971 | ||
8972 | ||
8973 | /** | |
8974 | * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device | |
8975 | * @phba: pointer to lpfc hba data structure. | |
8976 | * | |
8977 | * This routine is invoked to enable the MSI-X interrupt vectors to device | |
8978 | * with SLI-4 interface spec. | |
8979 | * | |
8980 | * Return codes | |
8981 | * 0 - successful | |
8982 | * other values - error | |
8983 | **/ | |
8984 | static int | |
8985 | lpfc_sli4_enable_msix(struct lpfc_hba *phba) | |
8986 | { | |
8987 | int vectors, rc, index; | |
8988 | ||
8989 | /* Set up MSI-X multi-message vectors */ | |
8990 | vectors = phba->cfg_fcp_io_channel; | |
8991 | if (phba->cfg_fof) | |
8992 | vectors++; | |
8993 | ||
8994 | rc = pci_alloc_irq_vectors(phba->pcidev, 2, vectors, PCI_IRQ_MSIX); | |
8995 | if (rc < 0) { | |
8996 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
8997 | "0484 PCI enable MSI-X failed (%d)\n", rc); | |
8998 | goto vec_fail_out; | |
8999 | } | |
9000 | vectors = rc; | |
9001 | ||
9002 | /* Assign MSI-X vectors to interrupt handlers */ | |
9003 | for (index = 0; index < vectors; index++) { | |
9004 | memset(&phba->sli4_hba.handler_name[index], 0, 16); | |
9005 | snprintf((char *)&phba->sli4_hba.handler_name[index], | |
9006 | LPFC_SLI4_HANDLER_NAME_SZ, | |
9007 | LPFC_DRIVER_HANDLER_NAME"%d", index); | |
9008 | ||
9009 | phba->sli4_hba.fcp_eq_hdl[index].idx = index; | |
9010 | phba->sli4_hba.fcp_eq_hdl[index].phba = phba; | |
9011 | atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1); | |
9012 | if (phba->cfg_fof && (index == (vectors - 1))) | |
9013 | rc = request_irq(pci_irq_vector(phba->pcidev, index), | |
9014 | &lpfc_sli4_fof_intr_handler, 0, | |
9015 | (char *)&phba->sli4_hba.handler_name[index], | |
9016 | &phba->sli4_hba.fcp_eq_hdl[index]); | |
9017 | else | |
9018 | rc = request_irq(pci_irq_vector(phba->pcidev, index), | |
9019 | &lpfc_sli4_hba_intr_handler, 0, | |
9020 | (char *)&phba->sli4_hba.handler_name[index], | |
9021 | &phba->sli4_hba.fcp_eq_hdl[index]); | |
9022 | if (rc) { | |
9023 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
9024 | "0486 MSI-X fast-path (%d) " | |
9025 | "request_irq failed (%d)\n", index, rc); | |
9026 | goto cfg_fail_out; | |
9027 | } | |
9028 | } | |
9029 | ||
9030 | if (phba->cfg_fof) | |
9031 | vectors--; | |
9032 | ||
9033 | if (vectors != phba->cfg_fcp_io_channel) { | |
9034 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9035 | "3238 Reducing IO channels to match number of " | |
9036 | "MSI-X vectors, requested %d got %d\n", | |
9037 | phba->cfg_fcp_io_channel, vectors); | |
9038 | phba->cfg_fcp_io_channel = vectors; | |
9039 | } | |
9040 | ||
9041 | if (!shost_use_blk_mq(lpfc_shost_from_vport(phba->pport))) | |
9042 | lpfc_sli4_set_affinity(phba, vectors); | |
9043 | return rc; | |
9044 | ||
9045 | cfg_fail_out: | |
9046 | /* free the irq already requested */ | |
9047 | for (--index; index >= 0; index--) { | |
9048 | int irq = pci_irq_vector(phba->pcidev, index); | |
9049 | ||
9050 | irq_set_affinity_hint(irq, NULL); | |
9051 | free_irq(irq, &phba->sli4_hba.fcp_eq_hdl[index]); | |
9052 | } | |
9053 | ||
9054 | /* Unconfigure MSI-X capability structure */ | |
9055 | pci_free_irq_vectors(phba->pcidev); | |
9056 | ||
9057 | vec_fail_out: | |
9058 | return rc; | |
9059 | } | |
9060 | ||
9061 | /** | |
9062 | * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device | |
9063 | * @phba: pointer to lpfc hba data structure. | |
9064 | * | |
9065 | * This routine is invoked to enable the MSI interrupt mode to device with | |
9066 | * SLI-4 interface spec. The kernel function pci_enable_msi() is called | |
9067 | * to enable the MSI vector. The device driver is responsible for calling | |
9068 | * the request_irq() to register MSI vector with a interrupt the handler, | |
9069 | * which is done in this function. | |
9070 | * | |
9071 | * Return codes | |
9072 | * 0 - successful | |
9073 | * other values - error | |
9074 | **/ | |
9075 | static int | |
9076 | lpfc_sli4_enable_msi(struct lpfc_hba *phba) | |
9077 | { | |
9078 | int rc, index; | |
9079 | ||
9080 | rc = pci_enable_msi(phba->pcidev); | |
9081 | if (!rc) | |
9082 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
9083 | "0487 PCI enable MSI mode success.\n"); | |
9084 | else { | |
9085 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
9086 | "0488 PCI enable MSI mode failed (%d)\n", rc); | |
9087 | return rc; | |
9088 | } | |
9089 | ||
9090 | rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, | |
9091 | 0, LPFC_DRIVER_NAME, phba); | |
9092 | if (rc) { | |
9093 | pci_disable_msi(phba->pcidev); | |
9094 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
9095 | "0490 MSI request_irq failed (%d)\n", rc); | |
9096 | return rc; | |
9097 | } | |
9098 | ||
9099 | for (index = 0; index < phba->cfg_fcp_io_channel; index++) { | |
9100 | phba->sli4_hba.fcp_eq_hdl[index].idx = index; | |
9101 | phba->sli4_hba.fcp_eq_hdl[index].phba = phba; | |
9102 | } | |
9103 | ||
9104 | if (phba->cfg_fof) { | |
9105 | phba->sli4_hba.fcp_eq_hdl[index].idx = index; | |
9106 | phba->sli4_hba.fcp_eq_hdl[index].phba = phba; | |
9107 | } | |
9108 | return 0; | |
9109 | } | |
9110 | ||
9111 | /** | |
9112 | * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device | |
9113 | * @phba: pointer to lpfc hba data structure. | |
9114 | * | |
9115 | * This routine is invoked to enable device interrupt and associate driver's | |
9116 | * interrupt handler(s) to interrupt vector(s) to device with SLI-4 | |
9117 | * interface spec. Depends on the interrupt mode configured to the driver, | |
9118 | * the driver will try to fallback from the configured interrupt mode to an | |
9119 | * interrupt mode which is supported by the platform, kernel, and device in | |
9120 | * the order of: | |
9121 | * MSI-X -> MSI -> IRQ. | |
9122 | * | |
9123 | * Return codes | |
9124 | * 0 - successful | |
9125 | * other values - error | |
9126 | **/ | |
9127 | static uint32_t | |
9128 | lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) | |
9129 | { | |
9130 | uint32_t intr_mode = LPFC_INTR_ERROR; | |
9131 | int retval, index; | |
9132 | ||
9133 | if (cfg_mode == 2) { | |
9134 | /* Preparation before conf_msi mbox cmd */ | |
9135 | retval = 0; | |
9136 | if (!retval) { | |
9137 | /* Now, try to enable MSI-X interrupt mode */ | |
9138 | retval = lpfc_sli4_enable_msix(phba); | |
9139 | if (!retval) { | |
9140 | /* Indicate initialization to MSI-X mode */ | |
9141 | phba->intr_type = MSIX; | |
9142 | intr_mode = 2; | |
9143 | } | |
9144 | } | |
9145 | } | |
9146 | ||
9147 | /* Fallback to MSI if MSI-X initialization failed */ | |
9148 | if (cfg_mode >= 1 && phba->intr_type == NONE) { | |
9149 | retval = lpfc_sli4_enable_msi(phba); | |
9150 | if (!retval) { | |
9151 | /* Indicate initialization to MSI mode */ | |
9152 | phba->intr_type = MSI; | |
9153 | intr_mode = 1; | |
9154 | } | |
9155 | } | |
9156 | ||
9157 | /* Fallback to INTx if both MSI-X/MSI initalization failed */ | |
9158 | if (phba->intr_type == NONE) { | |
9159 | retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, | |
9160 | IRQF_SHARED, LPFC_DRIVER_NAME, phba); | |
9161 | if (!retval) { | |
9162 | /* Indicate initialization to INTx mode */ | |
9163 | phba->intr_type = INTx; | |
9164 | intr_mode = 0; | |
9165 | for (index = 0; index < phba->cfg_fcp_io_channel; | |
9166 | index++) { | |
9167 | phba->sli4_hba.fcp_eq_hdl[index].idx = index; | |
9168 | phba->sli4_hba.fcp_eq_hdl[index].phba = phba; | |
9169 | atomic_set(&phba->sli4_hba.fcp_eq_hdl[index]. | |
9170 | fcp_eq_in_use, 1); | |
9171 | } | |
9172 | if (phba->cfg_fof) { | |
9173 | phba->sli4_hba.fcp_eq_hdl[index].idx = index; | |
9174 | phba->sli4_hba.fcp_eq_hdl[index].phba = phba; | |
9175 | atomic_set(&phba->sli4_hba.fcp_eq_hdl[index]. | |
9176 | fcp_eq_in_use, 1); | |
9177 | } | |
9178 | } | |
9179 | } | |
9180 | return intr_mode; | |
9181 | } | |
9182 | ||
9183 | /** | |
9184 | * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device | |
9185 | * @phba: pointer to lpfc hba data structure. | |
9186 | * | |
9187 | * This routine is invoked to disable device interrupt and disassociate | |
9188 | * the driver's interrupt handler(s) from interrupt vector(s) to device | |
9189 | * with SLI-4 interface spec. Depending on the interrupt mode, the driver | |
9190 | * will release the interrupt vector(s) for the message signaled interrupt. | |
9191 | **/ | |
9192 | static void | |
9193 | lpfc_sli4_disable_intr(struct lpfc_hba *phba) | |
9194 | { | |
9195 | /* Disable the currently initialized interrupt mode */ | |
9196 | if (phba->intr_type == MSIX) { | |
9197 | int index; | |
9198 | ||
9199 | /* Free up MSI-X multi-message vectors */ | |
9200 | for (index = 0; index < phba->cfg_fcp_io_channel; index++) { | |
9201 | int irq = pci_irq_vector(phba->pcidev, index); | |
9202 | ||
9203 | irq_set_affinity_hint(irq, NULL); | |
9204 | free_irq(irq, &phba->sli4_hba.fcp_eq_hdl[index]); | |
9205 | } | |
9206 | ||
9207 | if (phba->cfg_fof) | |
9208 | free_irq(pci_irq_vector(phba->pcidev, index), phba); | |
9209 | } else { | |
9210 | free_irq(phba->pcidev->irq, phba); | |
9211 | } | |
9212 | ||
9213 | pci_free_irq_vectors(phba->pcidev); | |
9214 | ||
9215 | /* Reset interrupt management states */ | |
9216 | phba->intr_type = NONE; | |
9217 | phba->sli.slistat.sli_intr = 0; | |
9218 | } | |
9219 | ||
9220 | /** | |
9221 | * lpfc_unset_hba - Unset SLI3 hba device initialization | |
9222 | * @phba: pointer to lpfc hba data structure. | |
9223 | * | |
9224 | * This routine is invoked to unset the HBA device initialization steps to | |
9225 | * a device with SLI-3 interface spec. | |
9226 | **/ | |
9227 | static void | |
9228 | lpfc_unset_hba(struct lpfc_hba *phba) | |
9229 | { | |
9230 | struct lpfc_vport *vport = phba->pport; | |
9231 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
9232 | ||
9233 | spin_lock_irq(shost->host_lock); | |
9234 | vport->load_flag |= FC_UNLOADING; | |
9235 | spin_unlock_irq(shost->host_lock); | |
9236 | ||
9237 | kfree(phba->vpi_bmask); | |
9238 | kfree(phba->vpi_ids); | |
9239 | ||
9240 | lpfc_stop_hba_timers(phba); | |
9241 | ||
9242 | phba->pport->work_port_events = 0; | |
9243 | ||
9244 | lpfc_sli_hba_down(phba); | |
9245 | ||
9246 | lpfc_sli_brdrestart(phba); | |
9247 | ||
9248 | lpfc_sli_disable_intr(phba); | |
9249 | ||
9250 | return; | |
9251 | } | |
9252 | ||
9253 | /** | |
9254 | * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy | |
9255 | * @phba: Pointer to HBA context object. | |
9256 | * | |
9257 | * This function is called in the SLI4 code path to wait for completion | |
9258 | * of device's XRIs exchange busy. It will check the XRI exchange busy | |
9259 | * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after | |
9260 | * that, it will check the XRI exchange busy on outstanding FCP and ELS | |
9261 | * I/Os every 30 seconds, log error message, and wait forever. Only when | |
9262 | * all XRI exchange busy complete, the driver unload shall proceed with | |
9263 | * invoking the function reset ioctl mailbox command to the CNA and the | |
9264 | * the rest of the driver unload resource release. | |
9265 | **/ | |
9266 | static void | |
9267 | lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) | |
9268 | { | |
9269 | int wait_time = 0; | |
9270 | int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); | |
9271 | int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); | |
9272 | ||
9273 | while (!fcp_xri_cmpl || !els_xri_cmpl) { | |
9274 | if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { | |
9275 | if (!fcp_xri_cmpl) | |
9276 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9277 | "2877 FCP XRI exchange busy " | |
9278 | "wait time: %d seconds.\n", | |
9279 | wait_time/1000); | |
9280 | if (!els_xri_cmpl) | |
9281 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9282 | "2878 ELS XRI exchange busy " | |
9283 | "wait time: %d seconds.\n", | |
9284 | wait_time/1000); | |
9285 | msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); | |
9286 | wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; | |
9287 | } else { | |
9288 | msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); | |
9289 | wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; | |
9290 | } | |
9291 | fcp_xri_cmpl = | |
9292 | list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); | |
9293 | els_xri_cmpl = | |
9294 | list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); | |
9295 | } | |
9296 | } | |
9297 | ||
9298 | /** | |
9299 | * lpfc_sli4_hba_unset - Unset the fcoe hba | |
9300 | * @phba: Pointer to HBA context object. | |
9301 | * | |
9302 | * This function is called in the SLI4 code path to reset the HBA's FCoE | |
9303 | * function. The caller is not required to hold any lock. This routine | |
9304 | * issues PCI function reset mailbox command to reset the FCoE function. | |
9305 | * At the end of the function, it calls lpfc_hba_down_post function to | |
9306 | * free any pending commands. | |
9307 | **/ | |
9308 | static void | |
9309 | lpfc_sli4_hba_unset(struct lpfc_hba *phba) | |
9310 | { | |
9311 | int wait_cnt = 0; | |
9312 | LPFC_MBOXQ_t *mboxq; | |
9313 | struct pci_dev *pdev = phba->pcidev; | |
9314 | ||
9315 | lpfc_stop_hba_timers(phba); | |
9316 | phba->sli4_hba.intr_enable = 0; | |
9317 | ||
9318 | /* | |
9319 | * Gracefully wait out the potential current outstanding asynchronous | |
9320 | * mailbox command. | |
9321 | */ | |
9322 | ||
9323 | /* First, block any pending async mailbox command from posted */ | |
9324 | spin_lock_irq(&phba->hbalock); | |
9325 | phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; | |
9326 | spin_unlock_irq(&phba->hbalock); | |
9327 | /* Now, trying to wait it out if we can */ | |
9328 | while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { | |
9329 | msleep(10); | |
9330 | if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) | |
9331 | break; | |
9332 | } | |
9333 | /* Forcefully release the outstanding mailbox command if timed out */ | |
9334 | if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { | |
9335 | spin_lock_irq(&phba->hbalock); | |
9336 | mboxq = phba->sli.mbox_active; | |
9337 | mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; | |
9338 | __lpfc_mbox_cmpl_put(phba, mboxq); | |
9339 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
9340 | phba->sli.mbox_active = NULL; | |
9341 | spin_unlock_irq(&phba->hbalock); | |
9342 | } | |
9343 | ||
9344 | /* Abort all iocbs associated with the hba */ | |
9345 | lpfc_sli_hba_iocb_abort(phba); | |
9346 | ||
9347 | /* Wait for completion of device XRI exchange busy */ | |
9348 | lpfc_sli4_xri_exchange_busy_wait(phba); | |
9349 | ||
9350 | /* Disable PCI subsystem interrupt */ | |
9351 | lpfc_sli4_disable_intr(phba); | |
9352 | ||
9353 | /* Disable SR-IOV if enabled */ | |
9354 | if (phba->cfg_sriov_nr_virtfn) | |
9355 | pci_disable_sriov(pdev); | |
9356 | ||
9357 | /* Stop kthread signal shall trigger work_done one more time */ | |
9358 | kthread_stop(phba->worker_thread); | |
9359 | ||
9360 | /* Reset SLI4 HBA FCoE function */ | |
9361 | lpfc_pci_function_reset(phba); | |
9362 | lpfc_sli4_queue_destroy(phba); | |
9363 | ||
9364 | /* Stop the SLI4 device port */ | |
9365 | phba->pport->work_port_events = 0; | |
9366 | } | |
9367 | ||
9368 | /** | |
9369 | * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. | |
9370 | * @phba: Pointer to HBA context object. | |
9371 | * @mboxq: Pointer to the mailboxq memory for the mailbox command response. | |
9372 | * | |
9373 | * This function is called in the SLI4 code path to read the port's | |
9374 | * sli4 capabilities. | |
9375 | * | |
9376 | * This function may be be called from any context that can block-wait | |
9377 | * for the completion. The expectation is that this routine is called | |
9378 | * typically from probe_one or from the online routine. | |
9379 | **/ | |
9380 | int | |
9381 | lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) | |
9382 | { | |
9383 | int rc; | |
9384 | struct lpfc_mqe *mqe; | |
9385 | struct lpfc_pc_sli4_params *sli4_params; | |
9386 | uint32_t mbox_tmo; | |
9387 | ||
9388 | rc = 0; | |
9389 | mqe = &mboxq->u.mqe; | |
9390 | ||
9391 | /* Read the port's SLI4 Parameters port capabilities */ | |
9392 | lpfc_pc_sli4_params(mboxq); | |
9393 | if (!phba->sli4_hba.intr_enable) | |
9394 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
9395 | else { | |
9396 | mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); | |
9397 | rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); | |
9398 | } | |
9399 | ||
9400 | if (unlikely(rc)) | |
9401 | return 1; | |
9402 | ||
9403 | sli4_params = &phba->sli4_hba.pc_sli4_params; | |
9404 | sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); | |
9405 | sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); | |
9406 | sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); | |
9407 | sli4_params->featurelevel_1 = bf_get(featurelevel_1, | |
9408 | &mqe->un.sli4_params); | |
9409 | sli4_params->featurelevel_2 = bf_get(featurelevel_2, | |
9410 | &mqe->un.sli4_params); | |
9411 | sli4_params->proto_types = mqe->un.sli4_params.word3; | |
9412 | sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; | |
9413 | sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); | |
9414 | sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); | |
9415 | sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); | |
9416 | sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); | |
9417 | sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); | |
9418 | sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); | |
9419 | sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); | |
9420 | sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); | |
9421 | sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); | |
9422 | sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); | |
9423 | sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); | |
9424 | sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); | |
9425 | sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); | |
9426 | sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); | |
9427 | sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); | |
9428 | sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); | |
9429 | sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); | |
9430 | sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); | |
9431 | sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); | |
9432 | ||
9433 | /* Make sure that sge_supp_len can be handled by the driver */ | |
9434 | if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) | |
9435 | sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; | |
9436 | ||
9437 | return rc; | |
9438 | } | |
9439 | ||
9440 | /** | |
9441 | * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. | |
9442 | * @phba: Pointer to HBA context object. | |
9443 | * @mboxq: Pointer to the mailboxq memory for the mailbox command response. | |
9444 | * | |
9445 | * This function is called in the SLI4 code path to read the port's | |
9446 | * sli4 capabilities. | |
9447 | * | |
9448 | * This function may be be called from any context that can block-wait | |
9449 | * for the completion. The expectation is that this routine is called | |
9450 | * typically from probe_one or from the online routine. | |
9451 | **/ | |
9452 | int | |
9453 | lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) | |
9454 | { | |
9455 | int rc; | |
9456 | struct lpfc_mqe *mqe = &mboxq->u.mqe; | |
9457 | struct lpfc_pc_sli4_params *sli4_params; | |
9458 | uint32_t mbox_tmo; | |
9459 | int length; | |
9460 | struct lpfc_sli4_parameters *mbx_sli4_parameters; | |
9461 | ||
9462 | /* | |
9463 | * By default, the driver assumes the SLI4 port requires RPI | |
9464 | * header postings. The SLI4_PARAM response will correct this | |
9465 | * assumption. | |
9466 | */ | |
9467 | phba->sli4_hba.rpi_hdrs_in_use = 1; | |
9468 | ||
9469 | /* Read the port's SLI4 Config Parameters */ | |
9470 | length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - | |
9471 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9472 | lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, | |
9473 | LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, | |
9474 | length, LPFC_SLI4_MBX_EMBED); | |
9475 | if (!phba->sli4_hba.intr_enable) | |
9476 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
9477 | else { | |
9478 | mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); | |
9479 | rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); | |
9480 | } | |
9481 | if (unlikely(rc)) | |
9482 | return rc; | |
9483 | sli4_params = &phba->sli4_hba.pc_sli4_params; | |
9484 | mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; | |
9485 | sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); | |
9486 | sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); | |
9487 | sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); | |
9488 | sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, | |
9489 | mbx_sli4_parameters); | |
9490 | sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, | |
9491 | mbx_sli4_parameters); | |
9492 | if (bf_get(cfg_phwq, mbx_sli4_parameters)) | |
9493 | phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; | |
9494 | else | |
9495 | phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; | |
9496 | sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; | |
9497 | sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); | |
9498 | sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters); | |
9499 | sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); | |
9500 | sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); | |
9501 | sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); | |
9502 | sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); | |
9503 | sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters); | |
9504 | sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, | |
9505 | mbx_sli4_parameters); | |
9506 | sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, | |
9507 | mbx_sli4_parameters); | |
9508 | phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); | |
9509 | phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); | |
9510 | ||
9511 | /* Make sure that sge_supp_len can be handled by the driver */ | |
9512 | if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) | |
9513 | sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; | |
9514 | ||
9515 | /* | |
9516 | * Issue IOs with CDB embedded in WQE to minimized the number | |
9517 | * of DMAs the firmware has to do. Setting this to 1 also forces | |
9518 | * the driver to use 128 bytes WQEs for FCP IOs. | |
9519 | */ | |
9520 | if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters)) | |
9521 | phba->fcp_embed_io = 1; | |
9522 | else | |
9523 | phba->fcp_embed_io = 0; | |
9524 | ||
9525 | /* | |
9526 | * Check if the SLI port supports MDS Diagnostics | |
9527 | */ | |
9528 | if (bf_get(cfg_mds_diags, mbx_sli4_parameters)) | |
9529 | phba->mds_diags_support = 1; | |
9530 | else | |
9531 | phba->mds_diags_support = 0; | |
9532 | return 0; | |
9533 | } | |
9534 | ||
9535 | /** | |
9536 | * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. | |
9537 | * @pdev: pointer to PCI device | |
9538 | * @pid: pointer to PCI device identifier | |
9539 | * | |
9540 | * This routine is to be called to attach a device with SLI-3 interface spec | |
9541 | * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is | |
9542 | * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific | |
9543 | * information of the device and driver to see if the driver state that it can | |
9544 | * support this kind of device. If the match is successful, the driver core | |
9545 | * invokes this routine. If this routine determines it can claim the HBA, it | |
9546 | * does all the initialization that it needs to do to handle the HBA properly. | |
9547 | * | |
9548 | * Return code | |
9549 | * 0 - driver can claim the device | |
9550 | * negative value - driver can not claim the device | |
9551 | **/ | |
9552 | static int | |
9553 | lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) | |
9554 | { | |
9555 | struct lpfc_hba *phba; | |
9556 | struct lpfc_vport *vport = NULL; | |
9557 | struct Scsi_Host *shost = NULL; | |
9558 | int error; | |
9559 | uint32_t cfg_mode, intr_mode; | |
9560 | ||
9561 | /* Allocate memory for HBA structure */ | |
9562 | phba = lpfc_hba_alloc(pdev); | |
9563 | if (!phba) | |
9564 | return -ENOMEM; | |
9565 | ||
9566 | /* Perform generic PCI device enabling operation */ | |
9567 | error = lpfc_enable_pci_dev(phba); | |
9568 | if (error) | |
9569 | goto out_free_phba; | |
9570 | ||
9571 | /* Set up SLI API function jump table for PCI-device group-0 HBAs */ | |
9572 | error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); | |
9573 | if (error) | |
9574 | goto out_disable_pci_dev; | |
9575 | ||
9576 | /* Set up SLI-3 specific device PCI memory space */ | |
9577 | error = lpfc_sli_pci_mem_setup(phba); | |
9578 | if (error) { | |
9579 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9580 | "1402 Failed to set up pci memory space.\n"); | |
9581 | goto out_disable_pci_dev; | |
9582 | } | |
9583 | ||
9584 | /* Set up phase-1 common device driver resources */ | |
9585 | error = lpfc_setup_driver_resource_phase1(phba); | |
9586 | if (error) { | |
9587 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9588 | "1403 Failed to set up driver resource.\n"); | |
9589 | goto out_unset_pci_mem_s3; | |
9590 | } | |
9591 | ||
9592 | /* Set up SLI-3 specific device driver resources */ | |
9593 | error = lpfc_sli_driver_resource_setup(phba); | |
9594 | if (error) { | |
9595 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9596 | "1404 Failed to set up driver resource.\n"); | |
9597 | goto out_unset_pci_mem_s3; | |
9598 | } | |
9599 | ||
9600 | /* Initialize and populate the iocb list per host */ | |
9601 | error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); | |
9602 | if (error) { | |
9603 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9604 | "1405 Failed to initialize iocb list.\n"); | |
9605 | goto out_unset_driver_resource_s3; | |
9606 | } | |
9607 | ||
9608 | /* Set up common device driver resources */ | |
9609 | error = lpfc_setup_driver_resource_phase2(phba); | |
9610 | if (error) { | |
9611 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9612 | "1406 Failed to set up driver resource.\n"); | |
9613 | goto out_free_iocb_list; | |
9614 | } | |
9615 | ||
9616 | /* Get the default values for Model Name and Description */ | |
9617 | lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); | |
9618 | ||
9619 | /* Create SCSI host to the physical port */ | |
9620 | error = lpfc_create_shost(phba); | |
9621 | if (error) { | |
9622 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9623 | "1407 Failed to create scsi host.\n"); | |
9624 | goto out_unset_driver_resource; | |
9625 | } | |
9626 | ||
9627 | /* Configure sysfs attributes */ | |
9628 | vport = phba->pport; | |
9629 | error = lpfc_alloc_sysfs_attr(vport); | |
9630 | if (error) { | |
9631 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9632 | "1476 Failed to allocate sysfs attr\n"); | |
9633 | goto out_destroy_shost; | |
9634 | } | |
9635 | ||
9636 | shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ | |
9637 | /* Now, trying to enable interrupt and bring up the device */ | |
9638 | cfg_mode = phba->cfg_use_msi; | |
9639 | while (true) { | |
9640 | /* Put device to a known state before enabling interrupt */ | |
9641 | lpfc_stop_port(phba); | |
9642 | /* Configure and enable interrupt */ | |
9643 | intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); | |
9644 | if (intr_mode == LPFC_INTR_ERROR) { | |
9645 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9646 | "0431 Failed to enable interrupt.\n"); | |
9647 | error = -ENODEV; | |
9648 | goto out_free_sysfs_attr; | |
9649 | } | |
9650 | /* SLI-3 HBA setup */ | |
9651 | if (lpfc_sli_hba_setup(phba)) { | |
9652 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9653 | "1477 Failed to set up hba\n"); | |
9654 | error = -ENODEV; | |
9655 | goto out_remove_device; | |
9656 | } | |
9657 | ||
9658 | /* Wait 50ms for the interrupts of previous mailbox commands */ | |
9659 | msleep(50); | |
9660 | /* Check active interrupts on message signaled interrupts */ | |
9661 | if (intr_mode == 0 || | |
9662 | phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { | |
9663 | /* Log the current active interrupt mode */ | |
9664 | phba->intr_mode = intr_mode; | |
9665 | lpfc_log_intr_mode(phba, intr_mode); | |
9666 | break; | |
9667 | } else { | |
9668 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
9669 | "0447 Configure interrupt mode (%d) " | |
9670 | "failed active interrupt test.\n", | |
9671 | intr_mode); | |
9672 | /* Disable the current interrupt mode */ | |
9673 | lpfc_sli_disable_intr(phba); | |
9674 | /* Try next level of interrupt mode */ | |
9675 | cfg_mode = --intr_mode; | |
9676 | } | |
9677 | } | |
9678 | ||
9679 | /* Perform post initialization setup */ | |
9680 | lpfc_post_init_setup(phba); | |
9681 | ||
9682 | /* Check if there are static vports to be created. */ | |
9683 | lpfc_create_static_vport(phba); | |
9684 | ||
9685 | return 0; | |
9686 | ||
9687 | out_remove_device: | |
9688 | lpfc_unset_hba(phba); | |
9689 | out_free_sysfs_attr: | |
9690 | lpfc_free_sysfs_attr(vport); | |
9691 | out_destroy_shost: | |
9692 | lpfc_destroy_shost(phba); | |
9693 | out_unset_driver_resource: | |
9694 | lpfc_unset_driver_resource_phase2(phba); | |
9695 | out_free_iocb_list: | |
9696 | lpfc_free_iocb_list(phba); | |
9697 | out_unset_driver_resource_s3: | |
9698 | lpfc_sli_driver_resource_unset(phba); | |
9699 | out_unset_pci_mem_s3: | |
9700 | lpfc_sli_pci_mem_unset(phba); | |
9701 | out_disable_pci_dev: | |
9702 | lpfc_disable_pci_dev(phba); | |
9703 | if (shost) | |
9704 | scsi_host_put(shost); | |
9705 | out_free_phba: | |
9706 | lpfc_hba_free(phba); | |
9707 | return error; | |
9708 | } | |
9709 | ||
9710 | /** | |
9711 | * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. | |
9712 | * @pdev: pointer to PCI device | |
9713 | * | |
9714 | * This routine is to be called to disattach a device with SLI-3 interface | |
9715 | * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is | |
9716 | * removed from PCI bus, it performs all the necessary cleanup for the HBA | |
9717 | * device to be removed from the PCI subsystem properly. | |
9718 | **/ | |
9719 | static void | |
9720 | lpfc_pci_remove_one_s3(struct pci_dev *pdev) | |
9721 | { | |
9722 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
9723 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
9724 | struct lpfc_vport **vports; | |
9725 | struct lpfc_hba *phba = vport->phba; | |
9726 | int i; | |
9727 | ||
9728 | spin_lock_irq(&phba->hbalock); | |
9729 | vport->load_flag |= FC_UNLOADING; | |
9730 | spin_unlock_irq(&phba->hbalock); | |
9731 | ||
9732 | lpfc_free_sysfs_attr(vport); | |
9733 | ||
9734 | /* Release all the vports against this physical port */ | |
9735 | vports = lpfc_create_vport_work_array(phba); | |
9736 | if (vports != NULL) | |
9737 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
9738 | if (vports[i]->port_type == LPFC_PHYSICAL_PORT) | |
9739 | continue; | |
9740 | fc_vport_terminate(vports[i]->fc_vport); | |
9741 | } | |
9742 | lpfc_destroy_vport_work_array(phba, vports); | |
9743 | ||
9744 | /* Remove FC host and then SCSI host with the physical port */ | |
9745 | fc_remove_host(shost); | |
9746 | scsi_remove_host(shost); | |
9747 | lpfc_cleanup(vport); | |
9748 | ||
9749 | /* | |
9750 | * Bring down the SLI Layer. This step disable all interrupts, | |
9751 | * clears the rings, discards all mailbox commands, and resets | |
9752 | * the HBA. | |
9753 | */ | |
9754 | ||
9755 | /* HBA interrupt will be disabled after this call */ | |
9756 | lpfc_sli_hba_down(phba); | |
9757 | /* Stop kthread signal shall trigger work_done one more time */ | |
9758 | kthread_stop(phba->worker_thread); | |
9759 | /* Final cleanup of txcmplq and reset the HBA */ | |
9760 | lpfc_sli_brdrestart(phba); | |
9761 | ||
9762 | kfree(phba->vpi_bmask); | |
9763 | kfree(phba->vpi_ids); | |
9764 | ||
9765 | lpfc_stop_hba_timers(phba); | |
9766 | spin_lock_irq(&phba->hbalock); | |
9767 | list_del_init(&vport->listentry); | |
9768 | spin_unlock_irq(&phba->hbalock); | |
9769 | ||
9770 | lpfc_debugfs_terminate(vport); | |
9771 | ||
9772 | /* Disable SR-IOV if enabled */ | |
9773 | if (phba->cfg_sriov_nr_virtfn) | |
9774 | pci_disable_sriov(pdev); | |
9775 | ||
9776 | /* Disable interrupt */ | |
9777 | lpfc_sli_disable_intr(phba); | |
9778 | ||
9779 | scsi_host_put(shost); | |
9780 | ||
9781 | /* | |
9782 | * Call scsi_free before mem_free since scsi bufs are released to their | |
9783 | * corresponding pools here. | |
9784 | */ | |
9785 | lpfc_scsi_free(phba); | |
9786 | lpfc_mem_free_all(phba); | |
9787 | ||
9788 | dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), | |
9789 | phba->hbqslimp.virt, phba->hbqslimp.phys); | |
9790 | ||
9791 | /* Free resources associated with SLI2 interface */ | |
9792 | dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, | |
9793 | phba->slim2p.virt, phba->slim2p.phys); | |
9794 | ||
9795 | /* unmap adapter SLIM and Control Registers */ | |
9796 | iounmap(phba->ctrl_regs_memmap_p); | |
9797 | iounmap(phba->slim_memmap_p); | |
9798 | ||
9799 | lpfc_hba_free(phba); | |
9800 | ||
9801 | pci_release_mem_regions(pdev); | |
9802 | pci_disable_device(pdev); | |
9803 | } | |
9804 | ||
9805 | /** | |
9806 | * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt | |
9807 | * @pdev: pointer to PCI device | |
9808 | * @msg: power management message | |
9809 | * | |
9810 | * This routine is to be called from the kernel's PCI subsystem to support | |
9811 | * system Power Management (PM) to device with SLI-3 interface spec. When | |
9812 | * PM invokes this method, it quiesces the device by stopping the driver's | |
9813 | * worker thread for the device, turning off device's interrupt and DMA, | |
9814 | * and bring the device offline. Note that as the driver implements the | |
9815 | * minimum PM requirements to a power-aware driver's PM support for the | |
9816 | * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) | |
9817 | * to the suspend() method call will be treated as SUSPEND and the driver will | |
9818 | * fully reinitialize its device during resume() method call, the driver will | |
9819 | * set device to PCI_D3hot state in PCI config space instead of setting it | |
9820 | * according to the @msg provided by the PM. | |
9821 | * | |
9822 | * Return code | |
9823 | * 0 - driver suspended the device | |
9824 | * Error otherwise | |
9825 | **/ | |
9826 | static int | |
9827 | lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) | |
9828 | { | |
9829 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
9830 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
9831 | ||
9832 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
9833 | "0473 PCI device Power Management suspend.\n"); | |
9834 | ||
9835 | /* Bring down the device */ | |
9836 | lpfc_offline_prep(phba, LPFC_MBX_WAIT); | |
9837 | lpfc_offline(phba); | |
9838 | kthread_stop(phba->worker_thread); | |
9839 | ||
9840 | /* Disable interrupt from device */ | |
9841 | lpfc_sli_disable_intr(phba); | |
9842 | ||
9843 | /* Save device state to PCI config space */ | |
9844 | pci_save_state(pdev); | |
9845 | pci_set_power_state(pdev, PCI_D3hot); | |
9846 | ||
9847 | return 0; | |
9848 | } | |
9849 | ||
9850 | /** | |
9851 | * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt | |
9852 | * @pdev: pointer to PCI device | |
9853 | * | |
9854 | * This routine is to be called from the kernel's PCI subsystem to support | |
9855 | * system Power Management (PM) to device with SLI-3 interface spec. When PM | |
9856 | * invokes this method, it restores the device's PCI config space state and | |
9857 | * fully reinitializes the device and brings it online. Note that as the | |
9858 | * driver implements the minimum PM requirements to a power-aware driver's | |
9859 | * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, | |
9860 | * FREEZE) to the suspend() method call will be treated as SUSPEND and the | |
9861 | * driver will fully reinitialize its device during resume() method call, | |
9862 | * the device will be set to PCI_D0 directly in PCI config space before | |
9863 | * restoring the state. | |
9864 | * | |
9865 | * Return code | |
9866 | * 0 - driver suspended the device | |
9867 | * Error otherwise | |
9868 | **/ | |
9869 | static int | |
9870 | lpfc_pci_resume_one_s3(struct pci_dev *pdev) | |
9871 | { | |
9872 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
9873 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
9874 | uint32_t intr_mode; | |
9875 | int error; | |
9876 | ||
9877 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
9878 | "0452 PCI device Power Management resume.\n"); | |
9879 | ||
9880 | /* Restore device state from PCI config space */ | |
9881 | pci_set_power_state(pdev, PCI_D0); | |
9882 | pci_restore_state(pdev); | |
9883 | ||
9884 | /* | |
9885 | * As the new kernel behavior of pci_restore_state() API call clears | |
9886 | * device saved_state flag, need to save the restored state again. | |
9887 | */ | |
9888 | pci_save_state(pdev); | |
9889 | ||
9890 | if (pdev->is_busmaster) | |
9891 | pci_set_master(pdev); | |
9892 | ||
9893 | /* Startup the kernel thread for this host adapter. */ | |
9894 | phba->worker_thread = kthread_run(lpfc_do_work, phba, | |
9895 | "lpfc_worker_%d", phba->brd_no); | |
9896 | if (IS_ERR(phba->worker_thread)) { | |
9897 | error = PTR_ERR(phba->worker_thread); | |
9898 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9899 | "0434 PM resume failed to start worker " | |
9900 | "thread: error=x%x.\n", error); | |
9901 | return error; | |
9902 | } | |
9903 | ||
9904 | /* Configure and enable interrupt */ | |
9905 | intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); | |
9906 | if (intr_mode == LPFC_INTR_ERROR) { | |
9907 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9908 | "0430 PM resume Failed to enable interrupt\n"); | |
9909 | return -EIO; | |
9910 | } else | |
9911 | phba->intr_mode = intr_mode; | |
9912 | ||
9913 | /* Restart HBA and bring it online */ | |
9914 | lpfc_sli_brdrestart(phba); | |
9915 | lpfc_online(phba); | |
9916 | ||
9917 | /* Log the current active interrupt mode */ | |
9918 | lpfc_log_intr_mode(phba, phba->intr_mode); | |
9919 | ||
9920 | return 0; | |
9921 | } | |
9922 | ||
9923 | /** | |
9924 | * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover | |
9925 | * @phba: pointer to lpfc hba data structure. | |
9926 | * | |
9927 | * This routine is called to prepare the SLI3 device for PCI slot recover. It | |
9928 | * aborts all the outstanding SCSI I/Os to the pci device. | |
9929 | **/ | |
9930 | static void | |
9931 | lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) | |
9932 | { | |
9933 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9934 | "2723 PCI channel I/O abort preparing for recovery\n"); | |
9935 | ||
9936 | /* | |
9937 | * There may be errored I/Os through HBA, abort all I/Os on txcmplq | |
9938 | * and let the SCSI mid-layer to retry them to recover. | |
9939 | */ | |
9940 | lpfc_sli_abort_fcp_rings(phba); | |
9941 | } | |
9942 | ||
9943 | /** | |
9944 | * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset | |
9945 | * @phba: pointer to lpfc hba data structure. | |
9946 | * | |
9947 | * This routine is called to prepare the SLI3 device for PCI slot reset. It | |
9948 | * disables the device interrupt and pci device, and aborts the internal FCP | |
9949 | * pending I/Os. | |
9950 | **/ | |
9951 | static void | |
9952 | lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) | |
9953 | { | |
9954 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9955 | "2710 PCI channel disable preparing for reset\n"); | |
9956 | ||
9957 | /* Block any management I/Os to the device */ | |
9958 | lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); | |
9959 | ||
9960 | /* Block all SCSI devices' I/Os on the host */ | |
9961 | lpfc_scsi_dev_block(phba); | |
9962 | ||
9963 | /* Flush all driver's outstanding SCSI I/Os as we are to reset */ | |
9964 | lpfc_sli_flush_fcp_rings(phba); | |
9965 | ||
9966 | /* stop all timers */ | |
9967 | lpfc_stop_hba_timers(phba); | |
9968 | ||
9969 | /* Disable interrupt and pci device */ | |
9970 | lpfc_sli_disable_intr(phba); | |
9971 | pci_disable_device(phba->pcidev); | |
9972 | } | |
9973 | ||
9974 | /** | |
9975 | * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable | |
9976 | * @phba: pointer to lpfc hba data structure. | |
9977 | * | |
9978 | * This routine is called to prepare the SLI3 device for PCI slot permanently | |
9979 | * disabling. It blocks the SCSI transport layer traffic and flushes the FCP | |
9980 | * pending I/Os. | |
9981 | **/ | |
9982 | static void | |
9983 | lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) | |
9984 | { | |
9985 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9986 | "2711 PCI channel permanent disable for failure\n"); | |
9987 | /* Block all SCSI devices' I/Os on the host */ | |
9988 | lpfc_scsi_dev_block(phba); | |
9989 | ||
9990 | /* stop all timers */ | |
9991 | lpfc_stop_hba_timers(phba); | |
9992 | ||
9993 | /* Clean up all driver's outstanding SCSI I/Os */ | |
9994 | lpfc_sli_flush_fcp_rings(phba); | |
9995 | } | |
9996 | ||
9997 | /** | |
9998 | * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error | |
9999 | * @pdev: pointer to PCI device. | |
10000 | * @state: the current PCI connection state. | |
10001 | * | |
10002 | * This routine is called from the PCI subsystem for I/O error handling to | |
10003 | * device with SLI-3 interface spec. This function is called by the PCI | |
10004 | * subsystem after a PCI bus error affecting this device has been detected. | |
10005 | * When this function is invoked, it will need to stop all the I/Os and | |
10006 | * interrupt(s) to the device. Once that is done, it will return | |
10007 | * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery | |
10008 | * as desired. | |
10009 | * | |
10010 | * Return codes | |
10011 | * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link | |
10012 | * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery | |
10013 | * PCI_ERS_RESULT_DISCONNECT - device could not be recovered | |
10014 | **/ | |
10015 | static pci_ers_result_t | |
10016 | lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) | |
10017 | { | |
10018 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
10019 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
10020 | ||
10021 | switch (state) { | |
10022 | case pci_channel_io_normal: | |
10023 | /* Non-fatal error, prepare for recovery */ | |
10024 | lpfc_sli_prep_dev_for_recover(phba); | |
10025 | return PCI_ERS_RESULT_CAN_RECOVER; | |
10026 | case pci_channel_io_frozen: | |
10027 | /* Fatal error, prepare for slot reset */ | |
10028 | lpfc_sli_prep_dev_for_reset(phba); | |
10029 | return PCI_ERS_RESULT_NEED_RESET; | |
10030 | case pci_channel_io_perm_failure: | |
10031 | /* Permanent failure, prepare for device down */ | |
10032 | lpfc_sli_prep_dev_for_perm_failure(phba); | |
10033 | return PCI_ERS_RESULT_DISCONNECT; | |
10034 | default: | |
10035 | /* Unknown state, prepare and request slot reset */ | |
10036 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10037 | "0472 Unknown PCI error state: x%x\n", state); | |
10038 | lpfc_sli_prep_dev_for_reset(phba); | |
10039 | return PCI_ERS_RESULT_NEED_RESET; | |
10040 | } | |
10041 | } | |
10042 | ||
10043 | /** | |
10044 | * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. | |
10045 | * @pdev: pointer to PCI device. | |
10046 | * | |
10047 | * This routine is called from the PCI subsystem for error handling to | |
10048 | * device with SLI-3 interface spec. This is called after PCI bus has been | |
10049 | * reset to restart the PCI card from scratch, as if from a cold-boot. | |
10050 | * During the PCI subsystem error recovery, after driver returns | |
10051 | * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error | |
10052 | * recovery and then call this routine before calling the .resume method | |
10053 | * to recover the device. This function will initialize the HBA device, | |
10054 | * enable the interrupt, but it will just put the HBA to offline state | |
10055 | * without passing any I/O traffic. | |
10056 | * | |
10057 | * Return codes | |
10058 | * PCI_ERS_RESULT_RECOVERED - the device has been recovered | |
10059 | * PCI_ERS_RESULT_DISCONNECT - device could not be recovered | |
10060 | */ | |
10061 | static pci_ers_result_t | |
10062 | lpfc_io_slot_reset_s3(struct pci_dev *pdev) | |
10063 | { | |
10064 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
10065 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
10066 | struct lpfc_sli *psli = &phba->sli; | |
10067 | uint32_t intr_mode; | |
10068 | ||
10069 | dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); | |
10070 | if (pci_enable_device_mem(pdev)) { | |
10071 | printk(KERN_ERR "lpfc: Cannot re-enable " | |
10072 | "PCI device after reset.\n"); | |
10073 | return PCI_ERS_RESULT_DISCONNECT; | |
10074 | } | |
10075 | ||
10076 | pci_restore_state(pdev); | |
10077 | ||
10078 | /* | |
10079 | * As the new kernel behavior of pci_restore_state() API call clears | |
10080 | * device saved_state flag, need to save the restored state again. | |
10081 | */ | |
10082 | pci_save_state(pdev); | |
10083 | ||
10084 | if (pdev->is_busmaster) | |
10085 | pci_set_master(pdev); | |
10086 | ||
10087 | spin_lock_irq(&phba->hbalock); | |
10088 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; | |
10089 | spin_unlock_irq(&phba->hbalock); | |
10090 | ||
10091 | /* Configure and enable interrupt */ | |
10092 | intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); | |
10093 | if (intr_mode == LPFC_INTR_ERROR) { | |
10094 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10095 | "0427 Cannot re-enable interrupt after " | |
10096 | "slot reset.\n"); | |
10097 | return PCI_ERS_RESULT_DISCONNECT; | |
10098 | } else | |
10099 | phba->intr_mode = intr_mode; | |
10100 | ||
10101 | /* Take device offline, it will perform cleanup */ | |
10102 | lpfc_offline_prep(phba, LPFC_MBX_WAIT); | |
10103 | lpfc_offline(phba); | |
10104 | lpfc_sli_brdrestart(phba); | |
10105 | ||
10106 | /* Log the current active interrupt mode */ | |
10107 | lpfc_log_intr_mode(phba, phba->intr_mode); | |
10108 | ||
10109 | return PCI_ERS_RESULT_RECOVERED; | |
10110 | } | |
10111 | ||
10112 | /** | |
10113 | * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. | |
10114 | * @pdev: pointer to PCI device | |
10115 | * | |
10116 | * This routine is called from the PCI subsystem for error handling to device | |
10117 | * with SLI-3 interface spec. It is called when kernel error recovery tells | |
10118 | * the lpfc driver that it is ok to resume normal PCI operation after PCI bus | |
10119 | * error recovery. After this call, traffic can start to flow from this device | |
10120 | * again. | |
10121 | */ | |
10122 | static void | |
10123 | lpfc_io_resume_s3(struct pci_dev *pdev) | |
10124 | { | |
10125 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
10126 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
10127 | ||
10128 | /* Bring device online, it will be no-op for non-fatal error resume */ | |
10129 | lpfc_online(phba); | |
10130 | ||
10131 | /* Clean up Advanced Error Reporting (AER) if needed */ | |
10132 | if (phba->hba_flag & HBA_AER_ENABLED) | |
10133 | pci_cleanup_aer_uncorrect_error_status(pdev); | |
10134 | } | |
10135 | ||
10136 | /** | |
10137 | * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve | |
10138 | * @phba: pointer to lpfc hba data structure. | |
10139 | * | |
10140 | * returns the number of ELS/CT IOCBs to reserve | |
10141 | **/ | |
10142 | int | |
10143 | lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) | |
10144 | { | |
10145 | int max_xri = phba->sli4_hba.max_cfg_param.max_xri; | |
10146 | ||
10147 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
10148 | if (max_xri <= 100) | |
10149 | return 10; | |
10150 | else if (max_xri <= 256) | |
10151 | return 25; | |
10152 | else if (max_xri <= 512) | |
10153 | return 50; | |
10154 | else if (max_xri <= 1024) | |
10155 | return 100; | |
10156 | else if (max_xri <= 1536) | |
10157 | return 150; | |
10158 | else if (max_xri <= 2048) | |
10159 | return 200; | |
10160 | else | |
10161 | return 250; | |
10162 | } else | |
10163 | return 0; | |
10164 | } | |
10165 | ||
10166 | /** | |
10167 | * lpfc_write_firmware - attempt to write a firmware image to the port | |
10168 | * @fw: pointer to firmware image returned from request_firmware. | |
10169 | * @phba: pointer to lpfc hba data structure. | |
10170 | * | |
10171 | **/ | |
10172 | static void | |
10173 | lpfc_write_firmware(const struct firmware *fw, void *context) | |
10174 | { | |
10175 | struct lpfc_hba *phba = (struct lpfc_hba *)context; | |
10176 | char fwrev[FW_REV_STR_SIZE]; | |
10177 | struct lpfc_grp_hdr *image; | |
10178 | struct list_head dma_buffer_list; | |
10179 | int i, rc = 0; | |
10180 | struct lpfc_dmabuf *dmabuf, *next; | |
10181 | uint32_t offset = 0, temp_offset = 0; | |
10182 | uint32_t magic_number, ftype, fid, fsize; | |
10183 | ||
10184 | /* It can be null in no-wait mode, sanity check */ | |
10185 | if (!fw) { | |
10186 | rc = -ENXIO; | |
10187 | goto out; | |
10188 | } | |
10189 | image = (struct lpfc_grp_hdr *)fw->data; | |
10190 | ||
10191 | magic_number = be32_to_cpu(image->magic_number); | |
10192 | ftype = bf_get_be32(lpfc_grp_hdr_file_type, image); | |
10193 | fid = bf_get_be32(lpfc_grp_hdr_id, image), | |
10194 | fsize = be32_to_cpu(image->size); | |
10195 | ||
10196 | INIT_LIST_HEAD(&dma_buffer_list); | |
10197 | if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 && | |
10198 | magic_number != LPFC_GROUP_OJECT_MAGIC_G6) || | |
10199 | ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) { | |
10200 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10201 | "3022 Invalid FW image found. " | |
10202 | "Magic:%x Type:%x ID:%x Size %d %zd\n", | |
10203 | magic_number, ftype, fid, fsize, fw->size); | |
10204 | rc = -EINVAL; | |
10205 | goto release_out; | |
10206 | } | |
10207 | lpfc_decode_firmware_rev(phba, fwrev, 1); | |
10208 | if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { | |
10209 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10210 | "3023 Updating Firmware, Current Version:%s " | |
10211 | "New Version:%s\n", | |
10212 | fwrev, image->revision); | |
10213 | for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { | |
10214 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), | |
10215 | GFP_KERNEL); | |
10216 | if (!dmabuf) { | |
10217 | rc = -ENOMEM; | |
10218 | goto release_out; | |
10219 | } | |
10220 | dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, | |
10221 | SLI4_PAGE_SIZE, | |
10222 | &dmabuf->phys, | |
10223 | GFP_KERNEL); | |
10224 | if (!dmabuf->virt) { | |
10225 | kfree(dmabuf); | |
10226 | rc = -ENOMEM; | |
10227 | goto release_out; | |
10228 | } | |
10229 | list_add_tail(&dmabuf->list, &dma_buffer_list); | |
10230 | } | |
10231 | while (offset < fw->size) { | |
10232 | temp_offset = offset; | |
10233 | list_for_each_entry(dmabuf, &dma_buffer_list, list) { | |
10234 | if (temp_offset + SLI4_PAGE_SIZE > fw->size) { | |
10235 | memcpy(dmabuf->virt, | |
10236 | fw->data + temp_offset, | |
10237 | fw->size - temp_offset); | |
10238 | temp_offset = fw->size; | |
10239 | break; | |
10240 | } | |
10241 | memcpy(dmabuf->virt, fw->data + temp_offset, | |
10242 | SLI4_PAGE_SIZE); | |
10243 | temp_offset += SLI4_PAGE_SIZE; | |
10244 | } | |
10245 | rc = lpfc_wr_object(phba, &dma_buffer_list, | |
10246 | (fw->size - offset), &offset); | |
10247 | if (rc) | |
10248 | goto release_out; | |
10249 | } | |
10250 | rc = offset; | |
10251 | } | |
10252 | ||
10253 | release_out: | |
10254 | list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { | |
10255 | list_del(&dmabuf->list); | |
10256 | dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, | |
10257 | dmabuf->virt, dmabuf->phys); | |
10258 | kfree(dmabuf); | |
10259 | } | |
10260 | release_firmware(fw); | |
10261 | out: | |
10262 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10263 | "3024 Firmware update done: %d.\n", rc); | |
10264 | return; | |
10265 | } | |
10266 | ||
10267 | /** | |
10268 | * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade | |
10269 | * @phba: pointer to lpfc hba data structure. | |
10270 | * | |
10271 | * This routine is called to perform Linux generic firmware upgrade on device | |
10272 | * that supports such feature. | |
10273 | **/ | |
10274 | int | |
10275 | lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) | |
10276 | { | |
10277 | uint8_t file_name[ELX_MODEL_NAME_SIZE]; | |
10278 | int ret; | |
10279 | const struct firmware *fw; | |
10280 | ||
10281 | /* Only supported on SLI4 interface type 2 for now */ | |
10282 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != | |
10283 | LPFC_SLI_INTF_IF_TYPE_2) | |
10284 | return -EPERM; | |
10285 | ||
10286 | snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); | |
10287 | ||
10288 | if (fw_upgrade == INT_FW_UPGRADE) { | |
10289 | ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, | |
10290 | file_name, &phba->pcidev->dev, | |
10291 | GFP_KERNEL, (void *)phba, | |
10292 | lpfc_write_firmware); | |
10293 | } else if (fw_upgrade == RUN_FW_UPGRADE) { | |
10294 | ret = request_firmware(&fw, file_name, &phba->pcidev->dev); | |
10295 | if (!ret) | |
10296 | lpfc_write_firmware(fw, (void *)phba); | |
10297 | } else { | |
10298 | ret = -EINVAL; | |
10299 | } | |
10300 | ||
10301 | return ret; | |
10302 | } | |
10303 | ||
10304 | /** | |
10305 | * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys | |
10306 | * @pdev: pointer to PCI device | |
10307 | * @pid: pointer to PCI device identifier | |
10308 | * | |
10309 | * This routine is called from the kernel's PCI subsystem to device with | |
10310 | * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is | |
10311 | * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific | |
10312 | * information of the device and driver to see if the driver state that it | |
10313 | * can support this kind of device. If the match is successful, the driver | |
10314 | * core invokes this routine. If this routine determines it can claim the HBA, | |
10315 | * it does all the initialization that it needs to do to handle the HBA | |
10316 | * properly. | |
10317 | * | |
10318 | * Return code | |
10319 | * 0 - driver can claim the device | |
10320 | * negative value - driver can not claim the device | |
10321 | **/ | |
10322 | static int | |
10323 | lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) | |
10324 | { | |
10325 | struct lpfc_hba *phba; | |
10326 | struct lpfc_vport *vport = NULL; | |
10327 | struct Scsi_Host *shost = NULL; | |
10328 | int error; | |
10329 | uint32_t cfg_mode, intr_mode; | |
10330 | int adjusted_fcp_io_channel; | |
10331 | ||
10332 | /* Allocate memory for HBA structure */ | |
10333 | phba = lpfc_hba_alloc(pdev); | |
10334 | if (!phba) | |
10335 | return -ENOMEM; | |
10336 | ||
10337 | /* Perform generic PCI device enabling operation */ | |
10338 | error = lpfc_enable_pci_dev(phba); | |
10339 | if (error) | |
10340 | goto out_free_phba; | |
10341 | ||
10342 | /* Set up SLI API function jump table for PCI-device group-1 HBAs */ | |
10343 | error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); | |
10344 | if (error) | |
10345 | goto out_disable_pci_dev; | |
10346 | ||
10347 | /* Set up SLI-4 specific device PCI memory space */ | |
10348 | error = lpfc_sli4_pci_mem_setup(phba); | |
10349 | if (error) { | |
10350 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10351 | "1410 Failed to set up pci memory space.\n"); | |
10352 | goto out_disable_pci_dev; | |
10353 | } | |
10354 | ||
10355 | /* Set up phase-1 common device driver resources */ | |
10356 | error = lpfc_setup_driver_resource_phase1(phba); | |
10357 | if (error) { | |
10358 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10359 | "1411 Failed to set up driver resource.\n"); | |
10360 | goto out_unset_pci_mem_s4; | |
10361 | } | |
10362 | ||
10363 | /* Set up SLI-4 Specific device driver resources */ | |
10364 | error = lpfc_sli4_driver_resource_setup(phba); | |
10365 | if (error) { | |
10366 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10367 | "1412 Failed to set up driver resource.\n"); | |
10368 | goto out_unset_pci_mem_s4; | |
10369 | } | |
10370 | ||
10371 | /* Initialize and populate the iocb list per host */ | |
10372 | ||
10373 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
10374 | "2821 initialize iocb list %d.\n", | |
10375 | phba->cfg_iocb_cnt*1024); | |
10376 | error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); | |
10377 | ||
10378 | if (error) { | |
10379 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10380 | "1413 Failed to initialize iocb list.\n"); | |
10381 | goto out_unset_driver_resource_s4; | |
10382 | } | |
10383 | ||
10384 | INIT_LIST_HEAD(&phba->active_rrq_list); | |
10385 | INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); | |
10386 | ||
10387 | /* Set up common device driver resources */ | |
10388 | error = lpfc_setup_driver_resource_phase2(phba); | |
10389 | if (error) { | |
10390 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10391 | "1414 Failed to set up driver resource.\n"); | |
10392 | goto out_free_iocb_list; | |
10393 | } | |
10394 | ||
10395 | /* Get the default values for Model Name and Description */ | |
10396 | lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); | |
10397 | ||
10398 | /* Create SCSI host to the physical port */ | |
10399 | error = lpfc_create_shost(phba); | |
10400 | if (error) { | |
10401 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10402 | "1415 Failed to create scsi host.\n"); | |
10403 | goto out_unset_driver_resource; | |
10404 | } | |
10405 | ||
10406 | /* Configure sysfs attributes */ | |
10407 | vport = phba->pport; | |
10408 | error = lpfc_alloc_sysfs_attr(vport); | |
10409 | if (error) { | |
10410 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10411 | "1416 Failed to allocate sysfs attr\n"); | |
10412 | goto out_destroy_shost; | |
10413 | } | |
10414 | ||
10415 | shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ | |
10416 | /* Now, trying to enable interrupt and bring up the device */ | |
10417 | cfg_mode = phba->cfg_use_msi; | |
10418 | ||
10419 | /* Put device to a known state before enabling interrupt */ | |
10420 | lpfc_stop_port(phba); | |
10421 | /* Configure and enable interrupt */ | |
10422 | intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); | |
10423 | if (intr_mode == LPFC_INTR_ERROR) { | |
10424 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10425 | "0426 Failed to enable interrupt.\n"); | |
10426 | error = -ENODEV; | |
10427 | goto out_free_sysfs_attr; | |
10428 | } | |
10429 | /* Default to single EQ for non-MSI-X */ | |
10430 | if (phba->intr_type != MSIX) | |
10431 | adjusted_fcp_io_channel = 1; | |
10432 | else | |
10433 | adjusted_fcp_io_channel = phba->cfg_fcp_io_channel; | |
10434 | phba->cfg_fcp_io_channel = adjusted_fcp_io_channel; | |
10435 | /* Set up SLI-4 HBA */ | |
10436 | if (lpfc_sli4_hba_setup(phba)) { | |
10437 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10438 | "1421 Failed to set up hba\n"); | |
10439 | error = -ENODEV; | |
10440 | goto out_disable_intr; | |
10441 | } | |
10442 | ||
10443 | /* Log the current active interrupt mode */ | |
10444 | phba->intr_mode = intr_mode; | |
10445 | lpfc_log_intr_mode(phba, intr_mode); | |
10446 | ||
10447 | /* Perform post initialization setup */ | |
10448 | lpfc_post_init_setup(phba); | |
10449 | ||
10450 | /* check for firmware upgrade or downgrade */ | |
10451 | if (phba->cfg_request_firmware_upgrade) | |
10452 | lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); | |
10453 | ||
10454 | /* Check if there are static vports to be created. */ | |
10455 | lpfc_create_static_vport(phba); | |
10456 | return 0; | |
10457 | ||
10458 | out_disable_intr: | |
10459 | lpfc_sli4_disable_intr(phba); | |
10460 | out_free_sysfs_attr: | |
10461 | lpfc_free_sysfs_attr(vport); | |
10462 | out_destroy_shost: | |
10463 | lpfc_destroy_shost(phba); | |
10464 | out_unset_driver_resource: | |
10465 | lpfc_unset_driver_resource_phase2(phba); | |
10466 | out_free_iocb_list: | |
10467 | lpfc_free_iocb_list(phba); | |
10468 | out_unset_driver_resource_s4: | |
10469 | lpfc_sli4_driver_resource_unset(phba); | |
10470 | out_unset_pci_mem_s4: | |
10471 | lpfc_sli4_pci_mem_unset(phba); | |
10472 | out_disable_pci_dev: | |
10473 | lpfc_disable_pci_dev(phba); | |
10474 | if (shost) | |
10475 | scsi_host_put(shost); | |
10476 | out_free_phba: | |
10477 | lpfc_hba_free(phba); | |
10478 | return error; | |
10479 | } | |
10480 | ||
10481 | /** | |
10482 | * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem | |
10483 | * @pdev: pointer to PCI device | |
10484 | * | |
10485 | * This routine is called from the kernel's PCI subsystem to device with | |
10486 | * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is | |
10487 | * removed from PCI bus, it performs all the necessary cleanup for the HBA | |
10488 | * device to be removed from the PCI subsystem properly. | |
10489 | **/ | |
10490 | static void | |
10491 | lpfc_pci_remove_one_s4(struct pci_dev *pdev) | |
10492 | { | |
10493 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
10494 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
10495 | struct lpfc_vport **vports; | |
10496 | struct lpfc_hba *phba = vport->phba; | |
10497 | int i; | |
10498 | ||
10499 | /* Mark the device unloading flag */ | |
10500 | spin_lock_irq(&phba->hbalock); | |
10501 | vport->load_flag |= FC_UNLOADING; | |
10502 | spin_unlock_irq(&phba->hbalock); | |
10503 | ||
10504 | /* Free the HBA sysfs attributes */ | |
10505 | lpfc_free_sysfs_attr(vport); | |
10506 | ||
10507 | /* Release all the vports against this physical port */ | |
10508 | vports = lpfc_create_vport_work_array(phba); | |
10509 | if (vports != NULL) | |
10510 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
10511 | if (vports[i]->port_type == LPFC_PHYSICAL_PORT) | |
10512 | continue; | |
10513 | fc_vport_terminate(vports[i]->fc_vport); | |
10514 | } | |
10515 | lpfc_destroy_vport_work_array(phba, vports); | |
10516 | ||
10517 | /* Remove FC host and then SCSI host with the physical port */ | |
10518 | fc_remove_host(shost); | |
10519 | scsi_remove_host(shost); | |
10520 | ||
10521 | /* Perform cleanup on the physical port */ | |
10522 | lpfc_cleanup(vport); | |
10523 | ||
10524 | /* | |
10525 | * Bring down the SLI Layer. This step disables all interrupts, | |
10526 | * clears the rings, discards all mailbox commands, and resets | |
10527 | * the HBA FCoE function. | |
10528 | */ | |
10529 | lpfc_debugfs_terminate(vport); | |
10530 | lpfc_sli4_hba_unset(phba); | |
10531 | ||
10532 | spin_lock_irq(&phba->hbalock); | |
10533 | list_del_init(&vport->listentry); | |
10534 | spin_unlock_irq(&phba->hbalock); | |
10535 | ||
10536 | /* Perform scsi free before driver resource_unset since scsi | |
10537 | * buffers are released to their corresponding pools here. | |
10538 | */ | |
10539 | lpfc_scsi_free(phba); | |
10540 | ||
10541 | lpfc_sli4_driver_resource_unset(phba); | |
10542 | ||
10543 | /* Unmap adapter Control and Doorbell registers */ | |
10544 | lpfc_sli4_pci_mem_unset(phba); | |
10545 | ||
10546 | /* Release PCI resources and disable device's PCI function */ | |
10547 | scsi_host_put(shost); | |
10548 | lpfc_disable_pci_dev(phba); | |
10549 | ||
10550 | /* Finally, free the driver's device data structure */ | |
10551 | lpfc_hba_free(phba); | |
10552 | ||
10553 | return; | |
10554 | } | |
10555 | ||
10556 | /** | |
10557 | * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt | |
10558 | * @pdev: pointer to PCI device | |
10559 | * @msg: power management message | |
10560 | * | |
10561 | * This routine is called from the kernel's PCI subsystem to support system | |
10562 | * Power Management (PM) to device with SLI-4 interface spec. When PM invokes | |
10563 | * this method, it quiesces the device by stopping the driver's worker | |
10564 | * thread for the device, turning off device's interrupt and DMA, and bring | |
10565 | * the device offline. Note that as the driver implements the minimum PM | |
10566 | * requirements to a power-aware driver's PM support for suspend/resume -- all | |
10567 | * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() | |
10568 | * method call will be treated as SUSPEND and the driver will fully | |
10569 | * reinitialize its device during resume() method call, the driver will set | |
10570 | * device to PCI_D3hot state in PCI config space instead of setting it | |
10571 | * according to the @msg provided by the PM. | |
10572 | * | |
10573 | * Return code | |
10574 | * 0 - driver suspended the device | |
10575 | * Error otherwise | |
10576 | **/ | |
10577 | static int | |
10578 | lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) | |
10579 | { | |
10580 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
10581 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
10582 | ||
10583 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
10584 | "2843 PCI device Power Management suspend.\n"); | |
10585 | ||
10586 | /* Bring down the device */ | |
10587 | lpfc_offline_prep(phba, LPFC_MBX_WAIT); | |
10588 | lpfc_offline(phba); | |
10589 | kthread_stop(phba->worker_thread); | |
10590 | ||
10591 | /* Disable interrupt from device */ | |
10592 | lpfc_sli4_disable_intr(phba); | |
10593 | lpfc_sli4_queue_destroy(phba); | |
10594 | ||
10595 | /* Save device state to PCI config space */ | |
10596 | pci_save_state(pdev); | |
10597 | pci_set_power_state(pdev, PCI_D3hot); | |
10598 | ||
10599 | return 0; | |
10600 | } | |
10601 | ||
10602 | /** | |
10603 | * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt | |
10604 | * @pdev: pointer to PCI device | |
10605 | * | |
10606 | * This routine is called from the kernel's PCI subsystem to support system | |
10607 | * Power Management (PM) to device with SLI-4 interface spac. When PM invokes | |
10608 | * this method, it restores the device's PCI config space state and fully | |
10609 | * reinitializes the device and brings it online. Note that as the driver | |
10610 | * implements the minimum PM requirements to a power-aware driver's PM for | |
10611 | * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) | |
10612 | * to the suspend() method call will be treated as SUSPEND and the driver | |
10613 | * will fully reinitialize its device during resume() method call, the device | |
10614 | * will be set to PCI_D0 directly in PCI config space before restoring the | |
10615 | * state. | |
10616 | * | |
10617 | * Return code | |
10618 | * 0 - driver suspended the device | |
10619 | * Error otherwise | |
10620 | **/ | |
10621 | static int | |
10622 | lpfc_pci_resume_one_s4(struct pci_dev *pdev) | |
10623 | { | |
10624 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
10625 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
10626 | uint32_t intr_mode; | |
10627 | int error; | |
10628 | ||
10629 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
10630 | "0292 PCI device Power Management resume.\n"); | |
10631 | ||
10632 | /* Restore device state from PCI config space */ | |
10633 | pci_set_power_state(pdev, PCI_D0); | |
10634 | pci_restore_state(pdev); | |
10635 | ||
10636 | /* | |
10637 | * As the new kernel behavior of pci_restore_state() API call clears | |
10638 | * device saved_state flag, need to save the restored state again. | |
10639 | */ | |
10640 | pci_save_state(pdev); | |
10641 | ||
10642 | if (pdev->is_busmaster) | |
10643 | pci_set_master(pdev); | |
10644 | ||
10645 | /* Startup the kernel thread for this host adapter. */ | |
10646 | phba->worker_thread = kthread_run(lpfc_do_work, phba, | |
10647 | "lpfc_worker_%d", phba->brd_no); | |
10648 | if (IS_ERR(phba->worker_thread)) { | |
10649 | error = PTR_ERR(phba->worker_thread); | |
10650 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10651 | "0293 PM resume failed to start worker " | |
10652 | "thread: error=x%x.\n", error); | |
10653 | return error; | |
10654 | } | |
10655 | ||
10656 | /* Configure and enable interrupt */ | |
10657 | intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); | |
10658 | if (intr_mode == LPFC_INTR_ERROR) { | |
10659 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10660 | "0294 PM resume Failed to enable interrupt\n"); | |
10661 | return -EIO; | |
10662 | } else | |
10663 | phba->intr_mode = intr_mode; | |
10664 | ||
10665 | /* Restart HBA and bring it online */ | |
10666 | lpfc_sli_brdrestart(phba); | |
10667 | lpfc_online(phba); | |
10668 | ||
10669 | /* Log the current active interrupt mode */ | |
10670 | lpfc_log_intr_mode(phba, phba->intr_mode); | |
10671 | ||
10672 | return 0; | |
10673 | } | |
10674 | ||
10675 | /** | |
10676 | * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover | |
10677 | * @phba: pointer to lpfc hba data structure. | |
10678 | * | |
10679 | * This routine is called to prepare the SLI4 device for PCI slot recover. It | |
10680 | * aborts all the outstanding SCSI I/Os to the pci device. | |
10681 | **/ | |
10682 | static void | |
10683 | lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) | |
10684 | { | |
10685 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10686 | "2828 PCI channel I/O abort preparing for recovery\n"); | |
10687 | /* | |
10688 | * There may be errored I/Os through HBA, abort all I/Os on txcmplq | |
10689 | * and let the SCSI mid-layer to retry them to recover. | |
10690 | */ | |
10691 | lpfc_sli_abort_fcp_rings(phba); | |
10692 | } | |
10693 | ||
10694 | /** | |
10695 | * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset | |
10696 | * @phba: pointer to lpfc hba data structure. | |
10697 | * | |
10698 | * This routine is called to prepare the SLI4 device for PCI slot reset. It | |
10699 | * disables the device interrupt and pci device, and aborts the internal FCP | |
10700 | * pending I/Os. | |
10701 | **/ | |
10702 | static void | |
10703 | lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) | |
10704 | { | |
10705 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10706 | "2826 PCI channel disable preparing for reset\n"); | |
10707 | ||
10708 | /* Block any management I/Os to the device */ | |
10709 | lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); | |
10710 | ||
10711 | /* Block all SCSI devices' I/Os on the host */ | |
10712 | lpfc_scsi_dev_block(phba); | |
10713 | ||
10714 | /* Flush all driver's outstanding SCSI I/Os as we are to reset */ | |
10715 | lpfc_sli_flush_fcp_rings(phba); | |
10716 | ||
10717 | /* stop all timers */ | |
10718 | lpfc_stop_hba_timers(phba); | |
10719 | ||
10720 | /* Disable interrupt and pci device */ | |
10721 | lpfc_sli4_disable_intr(phba); | |
10722 | lpfc_sli4_queue_destroy(phba); | |
10723 | pci_disable_device(phba->pcidev); | |
10724 | } | |
10725 | ||
10726 | /** | |
10727 | * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable | |
10728 | * @phba: pointer to lpfc hba data structure. | |
10729 | * | |
10730 | * This routine is called to prepare the SLI4 device for PCI slot permanently | |
10731 | * disabling. It blocks the SCSI transport layer traffic and flushes the FCP | |
10732 | * pending I/Os. | |
10733 | **/ | |
10734 | static void | |
10735 | lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) | |
10736 | { | |
10737 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10738 | "2827 PCI channel permanent disable for failure\n"); | |
10739 | ||
10740 | /* Block all SCSI devices' I/Os on the host */ | |
10741 | lpfc_scsi_dev_block(phba); | |
10742 | ||
10743 | /* stop all timers */ | |
10744 | lpfc_stop_hba_timers(phba); | |
10745 | ||
10746 | /* Clean up all driver's outstanding SCSI I/Os */ | |
10747 | lpfc_sli_flush_fcp_rings(phba); | |
10748 | } | |
10749 | ||
10750 | /** | |
10751 | * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device | |
10752 | * @pdev: pointer to PCI device. | |
10753 | * @state: the current PCI connection state. | |
10754 | * | |
10755 | * This routine is called from the PCI subsystem for error handling to device | |
10756 | * with SLI-4 interface spec. This function is called by the PCI subsystem | |
10757 | * after a PCI bus error affecting this device has been detected. When this | |
10758 | * function is invoked, it will need to stop all the I/Os and interrupt(s) | |
10759 | * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET | |
10760 | * for the PCI subsystem to perform proper recovery as desired. | |
10761 | * | |
10762 | * Return codes | |
10763 | * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery | |
10764 | * PCI_ERS_RESULT_DISCONNECT - device could not be recovered | |
10765 | **/ | |
10766 | static pci_ers_result_t | |
10767 | lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) | |
10768 | { | |
10769 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
10770 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
10771 | ||
10772 | switch (state) { | |
10773 | case pci_channel_io_normal: | |
10774 | /* Non-fatal error, prepare for recovery */ | |
10775 | lpfc_sli4_prep_dev_for_recover(phba); | |
10776 | return PCI_ERS_RESULT_CAN_RECOVER; | |
10777 | case pci_channel_io_frozen: | |
10778 | /* Fatal error, prepare for slot reset */ | |
10779 | lpfc_sli4_prep_dev_for_reset(phba); | |
10780 | return PCI_ERS_RESULT_NEED_RESET; | |
10781 | case pci_channel_io_perm_failure: | |
10782 | /* Permanent failure, prepare for device down */ | |
10783 | lpfc_sli4_prep_dev_for_perm_failure(phba); | |
10784 | return PCI_ERS_RESULT_DISCONNECT; | |
10785 | default: | |
10786 | /* Unknown state, prepare and request slot reset */ | |
10787 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10788 | "2825 Unknown PCI error state: x%x\n", state); | |
10789 | lpfc_sli4_prep_dev_for_reset(phba); | |
10790 | return PCI_ERS_RESULT_NEED_RESET; | |
10791 | } | |
10792 | } | |
10793 | ||
10794 | /** | |
10795 | * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch | |
10796 | * @pdev: pointer to PCI device. | |
10797 | * | |
10798 | * This routine is called from the PCI subsystem for error handling to device | |
10799 | * with SLI-4 interface spec. It is called after PCI bus has been reset to | |
10800 | * restart the PCI card from scratch, as if from a cold-boot. During the | |
10801 | * PCI subsystem error recovery, after the driver returns | |
10802 | * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error | |
10803 | * recovery and then call this routine before calling the .resume method to | |
10804 | * recover the device. This function will initialize the HBA device, enable | |
10805 | * the interrupt, but it will just put the HBA to offline state without | |
10806 | * passing any I/O traffic. | |
10807 | * | |
10808 | * Return codes | |
10809 | * PCI_ERS_RESULT_RECOVERED - the device has been recovered | |
10810 | * PCI_ERS_RESULT_DISCONNECT - device could not be recovered | |
10811 | */ | |
10812 | static pci_ers_result_t | |
10813 | lpfc_io_slot_reset_s4(struct pci_dev *pdev) | |
10814 | { | |
10815 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
10816 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
10817 | struct lpfc_sli *psli = &phba->sli; | |
10818 | uint32_t intr_mode; | |
10819 | ||
10820 | dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); | |
10821 | if (pci_enable_device_mem(pdev)) { | |
10822 | printk(KERN_ERR "lpfc: Cannot re-enable " | |
10823 | "PCI device after reset.\n"); | |
10824 | return PCI_ERS_RESULT_DISCONNECT; | |
10825 | } | |
10826 | ||
10827 | pci_restore_state(pdev); | |
10828 | ||
10829 | /* | |
10830 | * As the new kernel behavior of pci_restore_state() API call clears | |
10831 | * device saved_state flag, need to save the restored state again. | |
10832 | */ | |
10833 | pci_save_state(pdev); | |
10834 | ||
10835 | if (pdev->is_busmaster) | |
10836 | pci_set_master(pdev); | |
10837 | ||
10838 | spin_lock_irq(&phba->hbalock); | |
10839 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; | |
10840 | spin_unlock_irq(&phba->hbalock); | |
10841 | ||
10842 | /* Configure and enable interrupt */ | |
10843 | intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); | |
10844 | if (intr_mode == LPFC_INTR_ERROR) { | |
10845 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10846 | "2824 Cannot re-enable interrupt after " | |
10847 | "slot reset.\n"); | |
10848 | return PCI_ERS_RESULT_DISCONNECT; | |
10849 | } else | |
10850 | phba->intr_mode = intr_mode; | |
10851 | ||
10852 | /* Log the current active interrupt mode */ | |
10853 | lpfc_log_intr_mode(phba, phba->intr_mode); | |
10854 | ||
10855 | return PCI_ERS_RESULT_RECOVERED; | |
10856 | } | |
10857 | ||
10858 | /** | |
10859 | * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device | |
10860 | * @pdev: pointer to PCI device | |
10861 | * | |
10862 | * This routine is called from the PCI subsystem for error handling to device | |
10863 | * with SLI-4 interface spec. It is called when kernel error recovery tells | |
10864 | * the lpfc driver that it is ok to resume normal PCI operation after PCI bus | |
10865 | * error recovery. After this call, traffic can start to flow from this device | |
10866 | * again. | |
10867 | **/ | |
10868 | static void | |
10869 | lpfc_io_resume_s4(struct pci_dev *pdev) | |
10870 | { | |
10871 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
10872 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
10873 | ||
10874 | /* | |
10875 | * In case of slot reset, as function reset is performed through | |
10876 | * mailbox command which needs DMA to be enabled, this operation | |
10877 | * has to be moved to the io resume phase. Taking device offline | |
10878 | * will perform the necessary cleanup. | |
10879 | */ | |
10880 | if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { | |
10881 | /* Perform device reset */ | |
10882 | lpfc_offline_prep(phba, LPFC_MBX_WAIT); | |
10883 | lpfc_offline(phba); | |
10884 | lpfc_sli_brdrestart(phba); | |
10885 | /* Bring the device back online */ | |
10886 | lpfc_online(phba); | |
10887 | } | |
10888 | ||
10889 | /* Clean up Advanced Error Reporting (AER) if needed */ | |
10890 | if (phba->hba_flag & HBA_AER_ENABLED) | |
10891 | pci_cleanup_aer_uncorrect_error_status(pdev); | |
10892 | } | |
10893 | ||
10894 | /** | |
10895 | * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem | |
10896 | * @pdev: pointer to PCI device | |
10897 | * @pid: pointer to PCI device identifier | |
10898 | * | |
10899 | * This routine is to be registered to the kernel's PCI subsystem. When an | |
10900 | * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks | |
10901 | * at PCI device-specific information of the device and driver to see if the | |
10902 | * driver state that it can support this kind of device. If the match is | |
10903 | * successful, the driver core invokes this routine. This routine dispatches | |
10904 | * the action to the proper SLI-3 or SLI-4 device probing routine, which will | |
10905 | * do all the initialization that it needs to do to handle the HBA device | |
10906 | * properly. | |
10907 | * | |
10908 | * Return code | |
10909 | * 0 - driver can claim the device | |
10910 | * negative value - driver can not claim the device | |
10911 | **/ | |
10912 | static int | |
10913 | lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) | |
10914 | { | |
10915 | int rc; | |
10916 | struct lpfc_sli_intf intf; | |
10917 | ||
10918 | if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) | |
10919 | return -ENODEV; | |
10920 | ||
10921 | if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && | |
10922 | (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) | |
10923 | rc = lpfc_pci_probe_one_s4(pdev, pid); | |
10924 | else | |
10925 | rc = lpfc_pci_probe_one_s3(pdev, pid); | |
10926 | ||
10927 | return rc; | |
10928 | } | |
10929 | ||
10930 | /** | |
10931 | * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem | |
10932 | * @pdev: pointer to PCI device | |
10933 | * | |
10934 | * This routine is to be registered to the kernel's PCI subsystem. When an | |
10935 | * Emulex HBA is removed from PCI bus, the driver core invokes this routine. | |
10936 | * This routine dispatches the action to the proper SLI-3 or SLI-4 device | |
10937 | * remove routine, which will perform all the necessary cleanup for the | |
10938 | * device to be removed from the PCI subsystem properly. | |
10939 | **/ | |
10940 | static void | |
10941 | lpfc_pci_remove_one(struct pci_dev *pdev) | |
10942 | { | |
10943 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
10944 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
10945 | ||
10946 | switch (phba->pci_dev_grp) { | |
10947 | case LPFC_PCI_DEV_LP: | |
10948 | lpfc_pci_remove_one_s3(pdev); | |
10949 | break; | |
10950 | case LPFC_PCI_DEV_OC: | |
10951 | lpfc_pci_remove_one_s4(pdev); | |
10952 | break; | |
10953 | default: | |
10954 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10955 | "1424 Invalid PCI device group: 0x%x\n", | |
10956 | phba->pci_dev_grp); | |
10957 | break; | |
10958 | } | |
10959 | return; | |
10960 | } | |
10961 | ||
10962 | /** | |
10963 | * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management | |
10964 | * @pdev: pointer to PCI device | |
10965 | * @msg: power management message | |
10966 | * | |
10967 | * This routine is to be registered to the kernel's PCI subsystem to support | |
10968 | * system Power Management (PM). When PM invokes this method, it dispatches | |
10969 | * the action to the proper SLI-3 or SLI-4 device suspend routine, which will | |
10970 | * suspend the device. | |
10971 | * | |
10972 | * Return code | |
10973 | * 0 - driver suspended the device | |
10974 | * Error otherwise | |
10975 | **/ | |
10976 | static int | |
10977 | lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) | |
10978 | { | |
10979 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
10980 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
10981 | int rc = -ENODEV; | |
10982 | ||
10983 | switch (phba->pci_dev_grp) { | |
10984 | case LPFC_PCI_DEV_LP: | |
10985 | rc = lpfc_pci_suspend_one_s3(pdev, msg); | |
10986 | break; | |
10987 | case LPFC_PCI_DEV_OC: | |
10988 | rc = lpfc_pci_suspend_one_s4(pdev, msg); | |
10989 | break; | |
10990 | default: | |
10991 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10992 | "1425 Invalid PCI device group: 0x%x\n", | |
10993 | phba->pci_dev_grp); | |
10994 | break; | |
10995 | } | |
10996 | return rc; | |
10997 | } | |
10998 | ||
10999 | /** | |
11000 | * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management | |
11001 | * @pdev: pointer to PCI device | |
11002 | * | |
11003 | * This routine is to be registered to the kernel's PCI subsystem to support | |
11004 | * system Power Management (PM). When PM invokes this method, it dispatches | |
11005 | * the action to the proper SLI-3 or SLI-4 device resume routine, which will | |
11006 | * resume the device. | |
11007 | * | |
11008 | * Return code | |
11009 | * 0 - driver suspended the device | |
11010 | * Error otherwise | |
11011 | **/ | |
11012 | static int | |
11013 | lpfc_pci_resume_one(struct pci_dev *pdev) | |
11014 | { | |
11015 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
11016 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
11017 | int rc = -ENODEV; | |
11018 | ||
11019 | switch (phba->pci_dev_grp) { | |
11020 | case LPFC_PCI_DEV_LP: | |
11021 | rc = lpfc_pci_resume_one_s3(pdev); | |
11022 | break; | |
11023 | case LPFC_PCI_DEV_OC: | |
11024 | rc = lpfc_pci_resume_one_s4(pdev); | |
11025 | break; | |
11026 | default: | |
11027 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11028 | "1426 Invalid PCI device group: 0x%x\n", | |
11029 | phba->pci_dev_grp); | |
11030 | break; | |
11031 | } | |
11032 | return rc; | |
11033 | } | |
11034 | ||
11035 | /** | |
11036 | * lpfc_io_error_detected - lpfc method for handling PCI I/O error | |
11037 | * @pdev: pointer to PCI device. | |
11038 | * @state: the current PCI connection state. | |
11039 | * | |
11040 | * This routine is registered to the PCI subsystem for error handling. This | |
11041 | * function is called by the PCI subsystem after a PCI bus error affecting | |
11042 | * this device has been detected. When this routine is invoked, it dispatches | |
11043 | * the action to the proper SLI-3 or SLI-4 device error detected handling | |
11044 | * routine, which will perform the proper error detected operation. | |
11045 | * | |
11046 | * Return codes | |
11047 | * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery | |
11048 | * PCI_ERS_RESULT_DISCONNECT - device could not be recovered | |
11049 | **/ | |
11050 | static pci_ers_result_t | |
11051 | lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) | |
11052 | { | |
11053 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
11054 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
11055 | pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; | |
11056 | ||
11057 | switch (phba->pci_dev_grp) { | |
11058 | case LPFC_PCI_DEV_LP: | |
11059 | rc = lpfc_io_error_detected_s3(pdev, state); | |
11060 | break; | |
11061 | case LPFC_PCI_DEV_OC: | |
11062 | rc = lpfc_io_error_detected_s4(pdev, state); | |
11063 | break; | |
11064 | default: | |
11065 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11066 | "1427 Invalid PCI device group: 0x%x\n", | |
11067 | phba->pci_dev_grp); | |
11068 | break; | |
11069 | } | |
11070 | return rc; | |
11071 | } | |
11072 | ||
11073 | /** | |
11074 | * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch | |
11075 | * @pdev: pointer to PCI device. | |
11076 | * | |
11077 | * This routine is registered to the PCI subsystem for error handling. This | |
11078 | * function is called after PCI bus has been reset to restart the PCI card | |
11079 | * from scratch, as if from a cold-boot. When this routine is invoked, it | |
11080 | * dispatches the action to the proper SLI-3 or SLI-4 device reset handling | |
11081 | * routine, which will perform the proper device reset. | |
11082 | * | |
11083 | * Return codes | |
11084 | * PCI_ERS_RESULT_RECOVERED - the device has been recovered | |
11085 | * PCI_ERS_RESULT_DISCONNECT - device could not be recovered | |
11086 | **/ | |
11087 | static pci_ers_result_t | |
11088 | lpfc_io_slot_reset(struct pci_dev *pdev) | |
11089 | { | |
11090 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
11091 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
11092 | pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; | |
11093 | ||
11094 | switch (phba->pci_dev_grp) { | |
11095 | case LPFC_PCI_DEV_LP: | |
11096 | rc = lpfc_io_slot_reset_s3(pdev); | |
11097 | break; | |
11098 | case LPFC_PCI_DEV_OC: | |
11099 | rc = lpfc_io_slot_reset_s4(pdev); | |
11100 | break; | |
11101 | default: | |
11102 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11103 | "1428 Invalid PCI device group: 0x%x\n", | |
11104 | phba->pci_dev_grp); | |
11105 | break; | |
11106 | } | |
11107 | return rc; | |
11108 | } | |
11109 | ||
11110 | /** | |
11111 | * lpfc_io_resume - lpfc method for resuming PCI I/O operation | |
11112 | * @pdev: pointer to PCI device | |
11113 | * | |
11114 | * This routine is registered to the PCI subsystem for error handling. It | |
11115 | * is called when kernel error recovery tells the lpfc driver that it is | |
11116 | * OK to resume normal PCI operation after PCI bus error recovery. When | |
11117 | * this routine is invoked, it dispatches the action to the proper SLI-3 | |
11118 | * or SLI-4 device io_resume routine, which will resume the device operation. | |
11119 | **/ | |
11120 | static void | |
11121 | lpfc_io_resume(struct pci_dev *pdev) | |
11122 | { | |
11123 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
11124 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
11125 | ||
11126 | switch (phba->pci_dev_grp) { | |
11127 | case LPFC_PCI_DEV_LP: | |
11128 | lpfc_io_resume_s3(pdev); | |
11129 | break; | |
11130 | case LPFC_PCI_DEV_OC: | |
11131 | lpfc_io_resume_s4(pdev); | |
11132 | break; | |
11133 | default: | |
11134 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11135 | "1429 Invalid PCI device group: 0x%x\n", | |
11136 | phba->pci_dev_grp); | |
11137 | break; | |
11138 | } | |
11139 | return; | |
11140 | } | |
11141 | ||
11142 | /** | |
11143 | * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter | |
11144 | * @phba: pointer to lpfc hba data structure. | |
11145 | * | |
11146 | * This routine checks to see if OAS is supported for this adapter. If | |
11147 | * supported, the configure Flash Optimized Fabric flag is set. Otherwise, | |
11148 | * the enable oas flag is cleared and the pool created for OAS device data | |
11149 | * is destroyed. | |
11150 | * | |
11151 | **/ | |
11152 | void | |
11153 | lpfc_sli4_oas_verify(struct lpfc_hba *phba) | |
11154 | { | |
11155 | ||
11156 | if (!phba->cfg_EnableXLane) | |
11157 | return; | |
11158 | ||
11159 | if (phba->sli4_hba.pc_sli4_params.oas_supported) { | |
11160 | phba->cfg_fof = 1; | |
11161 | } else { | |
11162 | phba->cfg_fof = 0; | |
11163 | if (phba->device_data_mem_pool) | |
11164 | mempool_destroy(phba->device_data_mem_pool); | |
11165 | phba->device_data_mem_pool = NULL; | |
11166 | } | |
11167 | ||
11168 | return; | |
11169 | } | |
11170 | ||
11171 | /** | |
11172 | * lpfc_fof_queue_setup - Set up all the fof queues | |
11173 | * @phba: pointer to lpfc hba data structure. | |
11174 | * | |
11175 | * This routine is invoked to set up all the fof queues for the FC HBA | |
11176 | * operation. | |
11177 | * | |
11178 | * Return codes | |
11179 | * 0 - successful | |
11180 | * -ENOMEM - No available memory | |
11181 | **/ | |
11182 | int | |
11183 | lpfc_fof_queue_setup(struct lpfc_hba *phba) | |
11184 | { | |
11185 | struct lpfc_sli *psli = &phba->sli; | |
11186 | int rc; | |
11187 | ||
11188 | rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX); | |
11189 | if (rc) | |
11190 | return -ENOMEM; | |
11191 | ||
11192 | if (phba->cfg_fof) { | |
11193 | ||
11194 | rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq, | |
11195 | phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP); | |
11196 | if (rc) | |
11197 | goto out_oas_cq; | |
11198 | ||
11199 | rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq, | |
11200 | phba->sli4_hba.oas_cq, LPFC_FCP); | |
11201 | if (rc) | |
11202 | goto out_oas_wq; | |
11203 | ||
11204 | phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING]; | |
11205 | phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING]; | |
11206 | } | |
11207 | ||
11208 | return 0; | |
11209 | ||
11210 | out_oas_wq: | |
11211 | lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq); | |
11212 | out_oas_cq: | |
11213 | lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq); | |
11214 | return rc; | |
11215 | ||
11216 | } | |
11217 | ||
11218 | /** | |
11219 | * lpfc_fof_queue_create - Create all the fof queues | |
11220 | * @phba: pointer to lpfc hba data structure. | |
11221 | * | |
11222 | * This routine is invoked to allocate all the fof queues for the FC HBA | |
11223 | * operation. For each SLI4 queue type, the parameters such as queue entry | |
11224 | * count (queue depth) shall be taken from the module parameter. For now, | |
11225 | * we just use some constant number as place holder. | |
11226 | * | |
11227 | * Return codes | |
11228 | * 0 - successful | |
11229 | * -ENOMEM - No availble memory | |
11230 | * -EIO - The mailbox failed to complete successfully. | |
11231 | **/ | |
11232 | int | |
11233 | lpfc_fof_queue_create(struct lpfc_hba *phba) | |
11234 | { | |
11235 | struct lpfc_queue *qdesc; | |
11236 | ||
11237 | /* Create FOF EQ */ | |
11238 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, | |
11239 | phba->sli4_hba.eq_ecount); | |
11240 | if (!qdesc) | |
11241 | goto out_error; | |
11242 | ||
11243 | phba->sli4_hba.fof_eq = qdesc; | |
11244 | ||
11245 | if (phba->cfg_fof) { | |
11246 | ||
11247 | /* Create OAS CQ */ | |
11248 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, | |
11249 | phba->sli4_hba.cq_ecount); | |
11250 | if (!qdesc) | |
11251 | goto out_error; | |
11252 | ||
11253 | phba->sli4_hba.oas_cq = qdesc; | |
11254 | ||
11255 | /* Create OAS WQ */ | |
11256 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, | |
11257 | phba->sli4_hba.wq_ecount); | |
11258 | if (!qdesc) | |
11259 | goto out_error; | |
11260 | ||
11261 | phba->sli4_hba.oas_wq = qdesc; | |
11262 | ||
11263 | } | |
11264 | return 0; | |
11265 | ||
11266 | out_error: | |
11267 | lpfc_fof_queue_destroy(phba); | |
11268 | return -ENOMEM; | |
11269 | } | |
11270 | ||
11271 | /** | |
11272 | * lpfc_fof_queue_destroy - Destroy all the fof queues | |
11273 | * @phba: pointer to lpfc hba data structure. | |
11274 | * | |
11275 | * This routine is invoked to release all the SLI4 queues with the FC HBA | |
11276 | * operation. | |
11277 | * | |
11278 | * Return codes | |
11279 | * 0 - successful | |
11280 | **/ | |
11281 | int | |
11282 | lpfc_fof_queue_destroy(struct lpfc_hba *phba) | |
11283 | { | |
11284 | /* Release FOF Event queue */ | |
11285 | if (phba->sli4_hba.fof_eq != NULL) { | |
11286 | lpfc_sli4_queue_free(phba->sli4_hba.fof_eq); | |
11287 | phba->sli4_hba.fof_eq = NULL; | |
11288 | } | |
11289 | ||
11290 | /* Release OAS Completion queue */ | |
11291 | if (phba->sli4_hba.oas_cq != NULL) { | |
11292 | lpfc_sli4_queue_free(phba->sli4_hba.oas_cq); | |
11293 | phba->sli4_hba.oas_cq = NULL; | |
11294 | } | |
11295 | ||
11296 | /* Release OAS Work queue */ | |
11297 | if (phba->sli4_hba.oas_wq != NULL) { | |
11298 | lpfc_sli4_queue_free(phba->sli4_hba.oas_wq); | |
11299 | phba->sli4_hba.oas_wq = NULL; | |
11300 | } | |
11301 | return 0; | |
11302 | } | |
11303 | ||
11304 | MODULE_DEVICE_TABLE(pci, lpfc_id_table); | |
11305 | ||
11306 | static const struct pci_error_handlers lpfc_err_handler = { | |
11307 | .error_detected = lpfc_io_error_detected, | |
11308 | .slot_reset = lpfc_io_slot_reset, | |
11309 | .resume = lpfc_io_resume, | |
11310 | }; | |
11311 | ||
11312 | static struct pci_driver lpfc_driver = { | |
11313 | .name = LPFC_DRIVER_NAME, | |
11314 | .id_table = lpfc_id_table, | |
11315 | .probe = lpfc_pci_probe_one, | |
11316 | .remove = lpfc_pci_remove_one, | |
11317 | .suspend = lpfc_pci_suspend_one, | |
11318 | .resume = lpfc_pci_resume_one, | |
11319 | .err_handler = &lpfc_err_handler, | |
11320 | }; | |
11321 | ||
11322 | static const struct file_operations lpfc_mgmt_fop = { | |
11323 | .owner = THIS_MODULE, | |
11324 | }; | |
11325 | ||
11326 | static struct miscdevice lpfc_mgmt_dev = { | |
11327 | .minor = MISC_DYNAMIC_MINOR, | |
11328 | .name = "lpfcmgmt", | |
11329 | .fops = &lpfc_mgmt_fop, | |
11330 | }; | |
11331 | ||
11332 | /** | |
11333 | * lpfc_init - lpfc module initialization routine | |
11334 | * | |
11335 | * This routine is to be invoked when the lpfc module is loaded into the | |
11336 | * kernel. The special kernel macro module_init() is used to indicate the | |
11337 | * role of this routine to the kernel as lpfc module entry point. | |
11338 | * | |
11339 | * Return codes | |
11340 | * 0 - successful | |
11341 | * -ENOMEM - FC attach transport failed | |
11342 | * all others - failed | |
11343 | */ | |
11344 | static int __init | |
11345 | lpfc_init(void) | |
11346 | { | |
11347 | int cpu; | |
11348 | int error = 0; | |
11349 | ||
11350 | printk(LPFC_MODULE_DESC "\n"); | |
11351 | printk(LPFC_COPYRIGHT "\n"); | |
11352 | ||
11353 | error = misc_register(&lpfc_mgmt_dev); | |
11354 | if (error) | |
11355 | printk(KERN_ERR "Could not register lpfcmgmt device, " | |
11356 | "misc_register returned with status %d", error); | |
11357 | ||
11358 | lpfc_transport_functions.vport_create = lpfc_vport_create; | |
11359 | lpfc_transport_functions.vport_delete = lpfc_vport_delete; | |
11360 | lpfc_transport_template = | |
11361 | fc_attach_transport(&lpfc_transport_functions); | |
11362 | if (lpfc_transport_template == NULL) | |
11363 | return -ENOMEM; | |
11364 | lpfc_vport_transport_template = | |
11365 | fc_attach_transport(&lpfc_vport_transport_functions); | |
11366 | if (lpfc_vport_transport_template == NULL) { | |
11367 | fc_release_transport(lpfc_transport_template); | |
11368 | return -ENOMEM; | |
11369 | } | |
11370 | ||
11371 | /* Initialize in case vector mapping is needed */ | |
11372 | lpfc_used_cpu = NULL; | |
11373 | lpfc_present_cpu = 0; | |
11374 | for_each_present_cpu(cpu) | |
11375 | lpfc_present_cpu++; | |
11376 | ||
11377 | error = pci_register_driver(&lpfc_driver); | |
11378 | if (error) { | |
11379 | fc_release_transport(lpfc_transport_template); | |
11380 | fc_release_transport(lpfc_vport_transport_template); | |
11381 | } | |
11382 | ||
11383 | return error; | |
11384 | } | |
11385 | ||
11386 | /** | |
11387 | * lpfc_exit - lpfc module removal routine | |
11388 | * | |
11389 | * This routine is invoked when the lpfc module is removed from the kernel. | |
11390 | * The special kernel macro module_exit() is used to indicate the role of | |
11391 | * this routine to the kernel as lpfc module exit point. | |
11392 | */ | |
11393 | static void __exit | |
11394 | lpfc_exit(void) | |
11395 | { | |
11396 | misc_deregister(&lpfc_mgmt_dev); | |
11397 | pci_unregister_driver(&lpfc_driver); | |
11398 | fc_release_transport(lpfc_transport_template); | |
11399 | fc_release_transport(lpfc_vport_transport_template); | |
11400 | if (_dump_buf_data) { | |
11401 | printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " | |
11402 | "_dump_buf_data at 0x%p\n", | |
11403 | (1L << _dump_buf_data_order), _dump_buf_data); | |
11404 | free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); | |
11405 | } | |
11406 | ||
11407 | if (_dump_buf_dif) { | |
11408 | printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " | |
11409 | "_dump_buf_dif at 0x%p\n", | |
11410 | (1L << _dump_buf_dif_order), _dump_buf_dif); | |
11411 | free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); | |
11412 | } | |
11413 | kfree(lpfc_used_cpu); | |
11414 | idr_destroy(&lpfc_hba_index); | |
11415 | } | |
11416 | ||
11417 | module_init(lpfc_init); | |
11418 | module_exit(lpfc_exit); | |
11419 | MODULE_LICENSE("GPL"); | |
11420 | MODULE_DESCRIPTION(LPFC_MODULE_DESC); | |
11421 | MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); | |
11422 | MODULE_VERSION("0:" LPFC_DRIVER_VERSION); |