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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) 2004-2010 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/kthread.h> | |
28 | #include <linux/pci.h> | |
29 | #include <linux/spinlock.h> | |
30 | #include <linux/ctype.h> | |
31 | #include <linux/aer.h> | |
32 | #include <linux/slab.h> | |
33 | ||
34 | #include <scsi/scsi.h> | |
35 | #include <scsi/scsi_device.h> | |
36 | #include <scsi/scsi_host.h> | |
37 | #include <scsi/scsi_transport_fc.h> | |
38 | ||
39 | #include "lpfc_hw4.h" | |
40 | #include "lpfc_hw.h" | |
41 | #include "lpfc_sli.h" | |
42 | #include "lpfc_sli4.h" | |
43 | #include "lpfc_nl.h" | |
44 | #include "lpfc_disc.h" | |
45 | #include "lpfc_scsi.h" | |
46 | #include "lpfc.h" | |
47 | #include "lpfc_logmsg.h" | |
48 | #include "lpfc_crtn.h" | |
49 | #include "lpfc_vport.h" | |
50 | #include "lpfc_version.h" | |
51 | ||
52 | char *_dump_buf_data; | |
53 | unsigned long _dump_buf_data_order; | |
54 | char *_dump_buf_dif; | |
55 | unsigned long _dump_buf_dif_order; | |
56 | spinlock_t _dump_buf_lock; | |
57 | ||
58 | static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); | |
59 | static int lpfc_post_rcv_buf(struct lpfc_hba *); | |
60 | static int lpfc_sli4_queue_create(struct lpfc_hba *); | |
61 | static void lpfc_sli4_queue_destroy(struct lpfc_hba *); | |
62 | static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); | |
63 | static int lpfc_setup_endian_order(struct lpfc_hba *); | |
64 | static int lpfc_sli4_read_config(struct lpfc_hba *); | |
65 | static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); | |
66 | static void lpfc_free_sgl_list(struct lpfc_hba *); | |
67 | static int lpfc_init_sgl_list(struct lpfc_hba *); | |
68 | static int lpfc_init_active_sgl_array(struct lpfc_hba *); | |
69 | static void lpfc_free_active_sgl(struct lpfc_hba *); | |
70 | static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); | |
71 | static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); | |
72 | static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); | |
73 | static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); | |
74 | static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); | |
75 | ||
76 | static struct scsi_transport_template *lpfc_transport_template = NULL; | |
77 | static struct scsi_transport_template *lpfc_vport_transport_template = NULL; | |
78 | static DEFINE_IDR(lpfc_hba_index); | |
79 | ||
80 | /** | |
81 | * lpfc_config_port_prep - Perform lpfc initialization prior to config port | |
82 | * @phba: pointer to lpfc hba data structure. | |
83 | * | |
84 | * This routine will do LPFC initialization prior to issuing the CONFIG_PORT | |
85 | * mailbox command. It retrieves the revision information from the HBA and | |
86 | * collects the Vital Product Data (VPD) about the HBA for preparing the | |
87 | * configuration of the HBA. | |
88 | * | |
89 | * Return codes: | |
90 | * 0 - success. | |
91 | * -ERESTART - requests the SLI layer to reset the HBA and try again. | |
92 | * Any other value - indicates an error. | |
93 | **/ | |
94 | int | |
95 | lpfc_config_port_prep(struct lpfc_hba *phba) | |
96 | { | |
97 | lpfc_vpd_t *vp = &phba->vpd; | |
98 | int i = 0, rc; | |
99 | LPFC_MBOXQ_t *pmb; | |
100 | MAILBOX_t *mb; | |
101 | char *lpfc_vpd_data = NULL; | |
102 | uint16_t offset = 0; | |
103 | static char licensed[56] = | |
104 | "key unlock for use with gnu public licensed code only\0"; | |
105 | static int init_key = 1; | |
106 | ||
107 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
108 | if (!pmb) { | |
109 | phba->link_state = LPFC_HBA_ERROR; | |
110 | return -ENOMEM; | |
111 | } | |
112 | ||
113 | mb = &pmb->u.mb; | |
114 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
115 | ||
116 | if (lpfc_is_LC_HBA(phba->pcidev->device)) { | |
117 | if (init_key) { | |
118 | uint32_t *ptext = (uint32_t *) licensed; | |
119 | ||
120 | for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) | |
121 | *ptext = cpu_to_be32(*ptext); | |
122 | init_key = 0; | |
123 | } | |
124 | ||
125 | lpfc_read_nv(phba, pmb); | |
126 | memset((char*)mb->un.varRDnvp.rsvd3, 0, | |
127 | sizeof (mb->un.varRDnvp.rsvd3)); | |
128 | memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, | |
129 | sizeof (licensed)); | |
130 | ||
131 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
132 | ||
133 | if (rc != MBX_SUCCESS) { | |
134 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
135 | "0324 Config Port initialization " | |
136 | "error, mbxCmd x%x READ_NVPARM, " | |
137 | "mbxStatus x%x\n", | |
138 | mb->mbxCommand, mb->mbxStatus); | |
139 | mempool_free(pmb, phba->mbox_mem_pool); | |
140 | return -ERESTART; | |
141 | } | |
142 | memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, | |
143 | sizeof(phba->wwnn)); | |
144 | memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, | |
145 | sizeof(phba->wwpn)); | |
146 | } | |
147 | ||
148 | phba->sli3_options = 0x0; | |
149 | ||
150 | /* Setup and issue mailbox READ REV command */ | |
151 | lpfc_read_rev(phba, pmb); | |
152 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
153 | if (rc != MBX_SUCCESS) { | |
154 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
155 | "0439 Adapter failed to init, mbxCmd x%x " | |
156 | "READ_REV, mbxStatus x%x\n", | |
157 | mb->mbxCommand, mb->mbxStatus); | |
158 | mempool_free( pmb, phba->mbox_mem_pool); | |
159 | return -ERESTART; | |
160 | } | |
161 | ||
162 | ||
163 | /* | |
164 | * The value of rr must be 1 since the driver set the cv field to 1. | |
165 | * This setting requires the FW to set all revision fields. | |
166 | */ | |
167 | if (mb->un.varRdRev.rr == 0) { | |
168 | vp->rev.rBit = 0; | |
169 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
170 | "0440 Adapter failed to init, READ_REV has " | |
171 | "missing revision information.\n"); | |
172 | mempool_free(pmb, phba->mbox_mem_pool); | |
173 | return -ERESTART; | |
174 | } | |
175 | ||
176 | if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { | |
177 | mempool_free(pmb, phba->mbox_mem_pool); | |
178 | return -EINVAL; | |
179 | } | |
180 | ||
181 | /* Save information as VPD data */ | |
182 | vp->rev.rBit = 1; | |
183 | memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); | |
184 | vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; | |
185 | memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); | |
186 | vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; | |
187 | memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); | |
188 | vp->rev.biuRev = mb->un.varRdRev.biuRev; | |
189 | vp->rev.smRev = mb->un.varRdRev.smRev; | |
190 | vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; | |
191 | vp->rev.endecRev = mb->un.varRdRev.endecRev; | |
192 | vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; | |
193 | vp->rev.fcphLow = mb->un.varRdRev.fcphLow; | |
194 | vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; | |
195 | vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; | |
196 | vp->rev.postKernRev = mb->un.varRdRev.postKernRev; | |
197 | vp->rev.opFwRev = mb->un.varRdRev.opFwRev; | |
198 | ||
199 | /* If the sli feature level is less then 9, we must | |
200 | * tear down all RPIs and VPIs on link down if NPIV | |
201 | * is enabled. | |
202 | */ | |
203 | if (vp->rev.feaLevelHigh < 9) | |
204 | phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; | |
205 | ||
206 | if (lpfc_is_LC_HBA(phba->pcidev->device)) | |
207 | memcpy(phba->RandomData, (char *)&mb->un.varWords[24], | |
208 | sizeof (phba->RandomData)); | |
209 | ||
210 | /* Get adapter VPD information */ | |
211 | lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); | |
212 | if (!lpfc_vpd_data) | |
213 | goto out_free_mbox; | |
214 | ||
215 | do { | |
216 | lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); | |
217 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
218 | ||
219 | if (rc != MBX_SUCCESS) { | |
220 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
221 | "0441 VPD not present on adapter, " | |
222 | "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", | |
223 | mb->mbxCommand, mb->mbxStatus); | |
224 | mb->un.varDmp.word_cnt = 0; | |
225 | } | |
226 | /* dump mem may return a zero when finished or we got a | |
227 | * mailbox error, either way we are done. | |
228 | */ | |
229 | if (mb->un.varDmp.word_cnt == 0) | |
230 | break; | |
231 | if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) | |
232 | mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; | |
233 | lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, | |
234 | lpfc_vpd_data + offset, | |
235 | mb->un.varDmp.word_cnt); | |
236 | offset += mb->un.varDmp.word_cnt; | |
237 | } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); | |
238 | lpfc_parse_vpd(phba, lpfc_vpd_data, offset); | |
239 | ||
240 | kfree(lpfc_vpd_data); | |
241 | out_free_mbox: | |
242 | mempool_free(pmb, phba->mbox_mem_pool); | |
243 | return 0; | |
244 | } | |
245 | ||
246 | /** | |
247 | * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd | |
248 | * @phba: pointer to lpfc hba data structure. | |
249 | * @pmboxq: pointer to the driver internal queue element for mailbox command. | |
250 | * | |
251 | * This is the completion handler for driver's configuring asynchronous event | |
252 | * mailbox command to the device. If the mailbox command returns successfully, | |
253 | * it will set internal async event support flag to 1; otherwise, it will | |
254 | * set internal async event support flag to 0. | |
255 | **/ | |
256 | static void | |
257 | lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) | |
258 | { | |
259 | if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) | |
260 | phba->temp_sensor_support = 1; | |
261 | else | |
262 | phba->temp_sensor_support = 0; | |
263 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
264 | return; | |
265 | } | |
266 | ||
267 | /** | |
268 | * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler | |
269 | * @phba: pointer to lpfc hba data structure. | |
270 | * @pmboxq: pointer to the driver internal queue element for mailbox command. | |
271 | * | |
272 | * This is the completion handler for dump mailbox command for getting | |
273 | * wake up parameters. When this command complete, the response contain | |
274 | * Option rom version of the HBA. This function translate the version number | |
275 | * into a human readable string and store it in OptionROMVersion. | |
276 | **/ | |
277 | static void | |
278 | lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) | |
279 | { | |
280 | struct prog_id *prg; | |
281 | uint32_t prog_id_word; | |
282 | char dist = ' '; | |
283 | /* character array used for decoding dist type. */ | |
284 | char dist_char[] = "nabx"; | |
285 | ||
286 | if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { | |
287 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
288 | return; | |
289 | } | |
290 | ||
291 | prg = (struct prog_id *) &prog_id_word; | |
292 | ||
293 | /* word 7 contain option rom version */ | |
294 | prog_id_word = pmboxq->u.mb.un.varWords[7]; | |
295 | ||
296 | /* Decode the Option rom version word to a readable string */ | |
297 | if (prg->dist < 4) | |
298 | dist = dist_char[prg->dist]; | |
299 | ||
300 | if ((prg->dist == 3) && (prg->num == 0)) | |
301 | sprintf(phba->OptionROMVersion, "%d.%d%d", | |
302 | prg->ver, prg->rev, prg->lev); | |
303 | else | |
304 | sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", | |
305 | prg->ver, prg->rev, prg->lev, | |
306 | dist, prg->num); | |
307 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
308 | return; | |
309 | } | |
310 | ||
311 | /** | |
312 | * lpfc_config_port_post - Perform lpfc initialization after config port | |
313 | * @phba: pointer to lpfc hba data structure. | |
314 | * | |
315 | * This routine will do LPFC initialization after the CONFIG_PORT mailbox | |
316 | * command call. It performs all internal resource and state setups on the | |
317 | * port: post IOCB buffers, enable appropriate host interrupt attentions, | |
318 | * ELS ring timers, etc. | |
319 | * | |
320 | * Return codes | |
321 | * 0 - success. | |
322 | * Any other value - error. | |
323 | **/ | |
324 | int | |
325 | lpfc_config_port_post(struct lpfc_hba *phba) | |
326 | { | |
327 | struct lpfc_vport *vport = phba->pport; | |
328 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
329 | LPFC_MBOXQ_t *pmb; | |
330 | MAILBOX_t *mb; | |
331 | struct lpfc_dmabuf *mp; | |
332 | struct lpfc_sli *psli = &phba->sli; | |
333 | uint32_t status, timeout; | |
334 | int i, j; | |
335 | int rc; | |
336 | ||
337 | spin_lock_irq(&phba->hbalock); | |
338 | /* | |
339 | * If the Config port completed correctly the HBA is not | |
340 | * over heated any more. | |
341 | */ | |
342 | if (phba->over_temp_state == HBA_OVER_TEMP) | |
343 | phba->over_temp_state = HBA_NORMAL_TEMP; | |
344 | spin_unlock_irq(&phba->hbalock); | |
345 | ||
346 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
347 | if (!pmb) { | |
348 | phba->link_state = LPFC_HBA_ERROR; | |
349 | return -ENOMEM; | |
350 | } | |
351 | mb = &pmb->u.mb; | |
352 | ||
353 | /* Get login parameters for NID. */ | |
354 | rc = lpfc_read_sparam(phba, pmb, 0); | |
355 | if (rc) { | |
356 | mempool_free(pmb, phba->mbox_mem_pool); | |
357 | return -ENOMEM; | |
358 | } | |
359 | ||
360 | pmb->vport = vport; | |
361 | if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { | |
362 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
363 | "0448 Adapter failed init, mbxCmd x%x " | |
364 | "READ_SPARM mbxStatus x%x\n", | |
365 | mb->mbxCommand, mb->mbxStatus); | |
366 | phba->link_state = LPFC_HBA_ERROR; | |
367 | mp = (struct lpfc_dmabuf *) pmb->context1; | |
368 | mempool_free(pmb, phba->mbox_mem_pool); | |
369 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
370 | kfree(mp); | |
371 | return -EIO; | |
372 | } | |
373 | ||
374 | mp = (struct lpfc_dmabuf *) pmb->context1; | |
375 | ||
376 | memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); | |
377 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
378 | kfree(mp); | |
379 | pmb->context1 = NULL; | |
380 | ||
381 | if (phba->cfg_soft_wwnn) | |
382 | u64_to_wwn(phba->cfg_soft_wwnn, | |
383 | vport->fc_sparam.nodeName.u.wwn); | |
384 | if (phba->cfg_soft_wwpn) | |
385 | u64_to_wwn(phba->cfg_soft_wwpn, | |
386 | vport->fc_sparam.portName.u.wwn); | |
387 | memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, | |
388 | sizeof (struct lpfc_name)); | |
389 | memcpy(&vport->fc_portname, &vport->fc_sparam.portName, | |
390 | sizeof (struct lpfc_name)); | |
391 | ||
392 | /* Update the fc_host data structures with new wwn. */ | |
393 | fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); | |
394 | fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); | |
395 | fc_host_max_npiv_vports(shost) = phba->max_vpi; | |
396 | ||
397 | /* If no serial number in VPD data, use low 6 bytes of WWNN */ | |
398 | /* This should be consolidated into parse_vpd ? - mr */ | |
399 | if (phba->SerialNumber[0] == 0) { | |
400 | uint8_t *outptr; | |
401 | ||
402 | outptr = &vport->fc_nodename.u.s.IEEE[0]; | |
403 | for (i = 0; i < 12; i++) { | |
404 | status = *outptr++; | |
405 | j = ((status & 0xf0) >> 4); | |
406 | if (j <= 9) | |
407 | phba->SerialNumber[i] = | |
408 | (char)((uint8_t) 0x30 + (uint8_t) j); | |
409 | else | |
410 | phba->SerialNumber[i] = | |
411 | (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); | |
412 | i++; | |
413 | j = (status & 0xf); | |
414 | if (j <= 9) | |
415 | phba->SerialNumber[i] = | |
416 | (char)((uint8_t) 0x30 + (uint8_t) j); | |
417 | else | |
418 | phba->SerialNumber[i] = | |
419 | (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); | |
420 | } | |
421 | } | |
422 | ||
423 | lpfc_read_config(phba, pmb); | |
424 | pmb->vport = vport; | |
425 | if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { | |
426 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
427 | "0453 Adapter failed to init, mbxCmd x%x " | |
428 | "READ_CONFIG, mbxStatus x%x\n", | |
429 | mb->mbxCommand, mb->mbxStatus); | |
430 | phba->link_state = LPFC_HBA_ERROR; | |
431 | mempool_free( pmb, phba->mbox_mem_pool); | |
432 | return -EIO; | |
433 | } | |
434 | ||
435 | /* Check if the port is disabled */ | |
436 | lpfc_sli_read_link_ste(phba); | |
437 | ||
438 | /* Reset the DFT_HBA_Q_DEPTH to the max xri */ | |
439 | if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) | |
440 | phba->cfg_hba_queue_depth = | |
441 | (mb->un.varRdConfig.max_xri + 1) - | |
442 | lpfc_sli4_get_els_iocb_cnt(phba); | |
443 | ||
444 | phba->lmt = mb->un.varRdConfig.lmt; | |
445 | ||
446 | /* Get the default values for Model Name and Description */ | |
447 | lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); | |
448 | ||
449 | if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G) | |
450 | || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) | |
451 | && !(phba->lmt & LMT_1Gb)) | |
452 | || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) | |
453 | && !(phba->lmt & LMT_2Gb)) | |
454 | || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) | |
455 | && !(phba->lmt & LMT_4Gb)) | |
456 | || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) | |
457 | && !(phba->lmt & LMT_8Gb)) | |
458 | || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) | |
459 | && !(phba->lmt & LMT_10Gb)) | |
460 | || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) | |
461 | && !(phba->lmt & LMT_16Gb))) { | |
462 | /* Reset link speed to auto */ | |
463 | lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT, | |
464 | "1302 Invalid speed for this board: " | |
465 | "Reset link speed to auto: x%x\n", | |
466 | phba->cfg_link_speed); | |
467 | phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; | |
468 | } | |
469 | ||
470 | phba->link_state = LPFC_LINK_DOWN; | |
471 | ||
472 | /* Only process IOCBs on ELS ring till hba_state is READY */ | |
473 | if (psli->ring[psli->extra_ring].cmdringaddr) | |
474 | psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; | |
475 | if (psli->ring[psli->fcp_ring].cmdringaddr) | |
476 | psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; | |
477 | if (psli->ring[psli->next_ring].cmdringaddr) | |
478 | psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; | |
479 | ||
480 | /* Post receive buffers for desired rings */ | |
481 | if (phba->sli_rev != 3) | |
482 | lpfc_post_rcv_buf(phba); | |
483 | ||
484 | /* | |
485 | * Configure HBA MSI-X attention conditions to messages if MSI-X mode | |
486 | */ | |
487 | if (phba->intr_type == MSIX) { | |
488 | rc = lpfc_config_msi(phba, pmb); | |
489 | if (rc) { | |
490 | mempool_free(pmb, phba->mbox_mem_pool); | |
491 | return -EIO; | |
492 | } | |
493 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
494 | if (rc != MBX_SUCCESS) { | |
495 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
496 | "0352 Config MSI mailbox command " | |
497 | "failed, mbxCmd x%x, mbxStatus x%x\n", | |
498 | pmb->u.mb.mbxCommand, | |
499 | pmb->u.mb.mbxStatus); | |
500 | mempool_free(pmb, phba->mbox_mem_pool); | |
501 | return -EIO; | |
502 | } | |
503 | } | |
504 | ||
505 | spin_lock_irq(&phba->hbalock); | |
506 | /* Initialize ERATT handling flag */ | |
507 | phba->hba_flag &= ~HBA_ERATT_HANDLED; | |
508 | ||
509 | /* Enable appropriate host interrupts */ | |
510 | status = readl(phba->HCregaddr); | |
511 | status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; | |
512 | if (psli->num_rings > 0) | |
513 | status |= HC_R0INT_ENA; | |
514 | if (psli->num_rings > 1) | |
515 | status |= HC_R1INT_ENA; | |
516 | if (psli->num_rings > 2) | |
517 | status |= HC_R2INT_ENA; | |
518 | if (psli->num_rings > 3) | |
519 | status |= HC_R3INT_ENA; | |
520 | ||
521 | if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && | |
522 | (phba->cfg_poll & DISABLE_FCP_RING_INT)) | |
523 | status &= ~(HC_R0INT_ENA); | |
524 | ||
525 | writel(status, phba->HCregaddr); | |
526 | readl(phba->HCregaddr); /* flush */ | |
527 | spin_unlock_irq(&phba->hbalock); | |
528 | ||
529 | /* Set up ring-0 (ELS) timer */ | |
530 | timeout = phba->fc_ratov * 2; | |
531 | mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); | |
532 | /* Set up heart beat (HB) timer */ | |
533 | mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); | |
534 | phba->hb_outstanding = 0; | |
535 | phba->last_completion_time = jiffies; | |
536 | /* Set up error attention (ERATT) polling timer */ | |
537 | mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); | |
538 | ||
539 | if (phba->hba_flag & LINK_DISABLED) { | |
540 | lpfc_printf_log(phba, | |
541 | KERN_ERR, LOG_INIT, | |
542 | "2598 Adapter Link is disabled.\n"); | |
543 | lpfc_down_link(phba, pmb); | |
544 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
545 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
546 | if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { | |
547 | lpfc_printf_log(phba, | |
548 | KERN_ERR, LOG_INIT, | |
549 | "2599 Adapter failed to issue DOWN_LINK" | |
550 | " mbox command rc 0x%x\n", rc); | |
551 | ||
552 | mempool_free(pmb, phba->mbox_mem_pool); | |
553 | return -EIO; | |
554 | } | |
555 | } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { | |
556 | lpfc_init_link(phba, pmb, phba->cfg_topology, | |
557 | phba->cfg_link_speed); | |
558 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
559 | lpfc_set_loopback_flag(phba); | |
560 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
561 | if (rc != MBX_SUCCESS) { | |
562 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
563 | "0454 Adapter failed to init, mbxCmd x%x " | |
564 | "INIT_LINK, mbxStatus x%x\n", | |
565 | mb->mbxCommand, mb->mbxStatus); | |
566 | ||
567 | /* Clear all interrupt enable conditions */ | |
568 | writel(0, phba->HCregaddr); | |
569 | readl(phba->HCregaddr); /* flush */ | |
570 | /* Clear all pending interrupts */ | |
571 | writel(0xffffffff, phba->HAregaddr); | |
572 | readl(phba->HAregaddr); /* flush */ | |
573 | ||
574 | phba->link_state = LPFC_HBA_ERROR; | |
575 | if (rc != MBX_BUSY) | |
576 | mempool_free(pmb, phba->mbox_mem_pool); | |
577 | return -EIO; | |
578 | } | |
579 | } | |
580 | /* MBOX buffer will be freed in mbox compl */ | |
581 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
582 | if (!pmb) { | |
583 | phba->link_state = LPFC_HBA_ERROR; | |
584 | return -ENOMEM; | |
585 | } | |
586 | ||
587 | lpfc_config_async(phba, pmb, LPFC_ELS_RING); | |
588 | pmb->mbox_cmpl = lpfc_config_async_cmpl; | |
589 | pmb->vport = phba->pport; | |
590 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
591 | ||
592 | if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { | |
593 | lpfc_printf_log(phba, | |
594 | KERN_ERR, | |
595 | LOG_INIT, | |
596 | "0456 Adapter failed to issue " | |
597 | "ASYNCEVT_ENABLE mbox status x%x\n", | |
598 | rc); | |
599 | mempool_free(pmb, phba->mbox_mem_pool); | |
600 | } | |
601 | ||
602 | /* Get Option rom version */ | |
603 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
604 | if (!pmb) { | |
605 | phba->link_state = LPFC_HBA_ERROR; | |
606 | return -ENOMEM; | |
607 | } | |
608 | ||
609 | lpfc_dump_wakeup_param(phba, pmb); | |
610 | pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; | |
611 | pmb->vport = phba->pport; | |
612 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
613 | ||
614 | if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { | |
615 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " | |
616 | "to get Option ROM version status x%x\n", rc); | |
617 | mempool_free(pmb, phba->mbox_mem_pool); | |
618 | } | |
619 | ||
620 | return 0; | |
621 | } | |
622 | ||
623 | /** | |
624 | * lpfc_hba_init_link - Initialize the FC link | |
625 | * @phba: pointer to lpfc hba data structure. | |
626 | * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT | |
627 | * | |
628 | * This routine will issue the INIT_LINK mailbox command call. | |
629 | * It is available to other drivers through the lpfc_hba data | |
630 | * structure for use as a delayed link up mechanism with the | |
631 | * module parameter lpfc_suppress_link_up. | |
632 | * | |
633 | * Return code | |
634 | * 0 - success | |
635 | * Any other value - error | |
636 | **/ | |
637 | int | |
638 | lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) | |
639 | { | |
640 | struct lpfc_vport *vport = phba->pport; | |
641 | LPFC_MBOXQ_t *pmb; | |
642 | MAILBOX_t *mb; | |
643 | int rc; | |
644 | ||
645 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
646 | if (!pmb) { | |
647 | phba->link_state = LPFC_HBA_ERROR; | |
648 | return -ENOMEM; | |
649 | } | |
650 | mb = &pmb->u.mb; | |
651 | pmb->vport = vport; | |
652 | ||
653 | lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed); | |
654 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
655 | lpfc_set_loopback_flag(phba); | |
656 | rc = lpfc_sli_issue_mbox(phba, pmb, flag); | |
657 | if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { | |
658 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
659 | "0498 Adapter failed to init, mbxCmd x%x " | |
660 | "INIT_LINK, mbxStatus x%x\n", | |
661 | mb->mbxCommand, mb->mbxStatus); | |
662 | if (phba->sli_rev <= LPFC_SLI_REV3) { | |
663 | /* Clear all interrupt enable conditions */ | |
664 | writel(0, phba->HCregaddr); | |
665 | readl(phba->HCregaddr); /* flush */ | |
666 | /* Clear all pending interrupts */ | |
667 | writel(0xffffffff, phba->HAregaddr); | |
668 | readl(phba->HAregaddr); /* flush */ | |
669 | } | |
670 | phba->link_state = LPFC_HBA_ERROR; | |
671 | if (rc != MBX_BUSY || flag == MBX_POLL) | |
672 | mempool_free(pmb, phba->mbox_mem_pool); | |
673 | return -EIO; | |
674 | } | |
675 | phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; | |
676 | if (flag == MBX_POLL) | |
677 | mempool_free(pmb, phba->mbox_mem_pool); | |
678 | ||
679 | return 0; | |
680 | } | |
681 | ||
682 | /** | |
683 | * lpfc_hba_down_link - this routine downs the FC link | |
684 | * @phba: pointer to lpfc hba data structure. | |
685 | * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT | |
686 | * | |
687 | * This routine will issue the DOWN_LINK mailbox command call. | |
688 | * It is available to other drivers through the lpfc_hba data | |
689 | * structure for use to stop the link. | |
690 | * | |
691 | * Return code | |
692 | * 0 - success | |
693 | * Any other value - error | |
694 | **/ | |
695 | int | |
696 | lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) | |
697 | { | |
698 | LPFC_MBOXQ_t *pmb; | |
699 | int rc; | |
700 | ||
701 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
702 | if (!pmb) { | |
703 | phba->link_state = LPFC_HBA_ERROR; | |
704 | return -ENOMEM; | |
705 | } | |
706 | ||
707 | lpfc_printf_log(phba, | |
708 | KERN_ERR, LOG_INIT, | |
709 | "0491 Adapter Link is disabled.\n"); | |
710 | lpfc_down_link(phba, pmb); | |
711 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
712 | rc = lpfc_sli_issue_mbox(phba, pmb, flag); | |
713 | if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { | |
714 | lpfc_printf_log(phba, | |
715 | KERN_ERR, LOG_INIT, | |
716 | "2522 Adapter failed to issue DOWN_LINK" | |
717 | " mbox command rc 0x%x\n", rc); | |
718 | ||
719 | mempool_free(pmb, phba->mbox_mem_pool); | |
720 | return -EIO; | |
721 | } | |
722 | if (flag == MBX_POLL) | |
723 | mempool_free(pmb, phba->mbox_mem_pool); | |
724 | ||
725 | return 0; | |
726 | } | |
727 | ||
728 | /** | |
729 | * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset | |
730 | * @phba: pointer to lpfc HBA data structure. | |
731 | * | |
732 | * This routine will do LPFC uninitialization before the HBA is reset when | |
733 | * bringing down the SLI Layer. | |
734 | * | |
735 | * Return codes | |
736 | * 0 - success. | |
737 | * Any other value - error. | |
738 | **/ | |
739 | int | |
740 | lpfc_hba_down_prep(struct lpfc_hba *phba) | |
741 | { | |
742 | struct lpfc_vport **vports; | |
743 | int i; | |
744 | ||
745 | if (phba->sli_rev <= LPFC_SLI_REV3) { | |
746 | /* Disable interrupts */ | |
747 | writel(0, phba->HCregaddr); | |
748 | readl(phba->HCregaddr); /* flush */ | |
749 | } | |
750 | ||
751 | if (phba->pport->load_flag & FC_UNLOADING) | |
752 | lpfc_cleanup_discovery_resources(phba->pport); | |
753 | else { | |
754 | vports = lpfc_create_vport_work_array(phba); | |
755 | if (vports != NULL) | |
756 | for (i = 0; i <= phba->max_vports && | |
757 | vports[i] != NULL; i++) | |
758 | lpfc_cleanup_discovery_resources(vports[i]); | |
759 | lpfc_destroy_vport_work_array(phba, vports); | |
760 | } | |
761 | return 0; | |
762 | } | |
763 | ||
764 | /** | |
765 | * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset | |
766 | * @phba: pointer to lpfc HBA data structure. | |
767 | * | |
768 | * This routine will do uninitialization after the HBA is reset when bring | |
769 | * down the SLI Layer. | |
770 | * | |
771 | * Return codes | |
772 | * 0 - success. | |
773 | * Any other value - error. | |
774 | **/ | |
775 | static int | |
776 | lpfc_hba_down_post_s3(struct lpfc_hba *phba) | |
777 | { | |
778 | struct lpfc_sli *psli = &phba->sli; | |
779 | struct lpfc_sli_ring *pring; | |
780 | struct lpfc_dmabuf *mp, *next_mp; | |
781 | LIST_HEAD(completions); | |
782 | int i; | |
783 | ||
784 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) | |
785 | lpfc_sli_hbqbuf_free_all(phba); | |
786 | else { | |
787 | /* Cleanup preposted buffers on the ELS ring */ | |
788 | pring = &psli->ring[LPFC_ELS_RING]; | |
789 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { | |
790 | list_del(&mp->list); | |
791 | pring->postbufq_cnt--; | |
792 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
793 | kfree(mp); | |
794 | } | |
795 | } | |
796 | ||
797 | spin_lock_irq(&phba->hbalock); | |
798 | for (i = 0; i < psli->num_rings; i++) { | |
799 | pring = &psli->ring[i]; | |
800 | ||
801 | /* At this point in time the HBA is either reset or DOA. Either | |
802 | * way, nothing should be on txcmplq as it will NEVER complete. | |
803 | */ | |
804 | list_splice_init(&pring->txcmplq, &completions); | |
805 | pring->txcmplq_cnt = 0; | |
806 | spin_unlock_irq(&phba->hbalock); | |
807 | ||
808 | /* Cancel all the IOCBs from the completions list */ | |
809 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
810 | IOERR_SLI_ABORTED); | |
811 | ||
812 | lpfc_sli_abort_iocb_ring(phba, pring); | |
813 | spin_lock_irq(&phba->hbalock); | |
814 | } | |
815 | spin_unlock_irq(&phba->hbalock); | |
816 | ||
817 | return 0; | |
818 | } | |
819 | ||
820 | /** | |
821 | * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset | |
822 | * @phba: pointer to lpfc HBA data structure. | |
823 | * | |
824 | * This routine will do uninitialization after the HBA is reset when bring | |
825 | * down the SLI Layer. | |
826 | * | |
827 | * Return codes | |
828 | * 0 - success. | |
829 | * Any other value - error. | |
830 | **/ | |
831 | static int | |
832 | lpfc_hba_down_post_s4(struct lpfc_hba *phba) | |
833 | { | |
834 | struct lpfc_scsi_buf *psb, *psb_next; | |
835 | LIST_HEAD(aborts); | |
836 | int ret; | |
837 | unsigned long iflag = 0; | |
838 | struct lpfc_sglq *sglq_entry = NULL; | |
839 | ||
840 | ret = lpfc_hba_down_post_s3(phba); | |
841 | if (ret) | |
842 | return ret; | |
843 | /* At this point in time the HBA is either reset or DOA. Either | |
844 | * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be | |
845 | * on the lpfc_sgl_list so that it can either be freed if the | |
846 | * driver is unloading or reposted if the driver is restarting | |
847 | * the port. | |
848 | */ | |
849 | spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ | |
850 | /* scsl_buf_list */ | |
851 | /* abts_sgl_list_lock required because worker thread uses this | |
852 | * list. | |
853 | */ | |
854 | spin_lock(&phba->sli4_hba.abts_sgl_list_lock); | |
855 | list_for_each_entry(sglq_entry, | |
856 | &phba->sli4_hba.lpfc_abts_els_sgl_list, list) | |
857 | sglq_entry->state = SGL_FREED; | |
858 | ||
859 | list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, | |
860 | &phba->sli4_hba.lpfc_sgl_list); | |
861 | spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); | |
862 | /* abts_scsi_buf_list_lock required because worker thread uses this | |
863 | * list. | |
864 | */ | |
865 | spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
866 | list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, | |
867 | &aborts); | |
868 | spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
869 | spin_unlock_irq(&phba->hbalock); | |
870 | ||
871 | list_for_each_entry_safe(psb, psb_next, &aborts, list) { | |
872 | psb->pCmd = NULL; | |
873 | psb->status = IOSTAT_SUCCESS; | |
874 | } | |
875 | spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); | |
876 | list_splice(&aborts, &phba->lpfc_scsi_buf_list); | |
877 | spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); | |
878 | return 0; | |
879 | } | |
880 | ||
881 | /** | |
882 | * lpfc_hba_down_post - Wrapper func for hba down post routine | |
883 | * @phba: pointer to lpfc HBA data structure. | |
884 | * | |
885 | * This routine wraps the actual SLI3 or SLI4 routine for performing | |
886 | * uninitialization after the HBA is reset when bring down the SLI Layer. | |
887 | * | |
888 | * Return codes | |
889 | * 0 - success. | |
890 | * Any other value - error. | |
891 | **/ | |
892 | int | |
893 | lpfc_hba_down_post(struct lpfc_hba *phba) | |
894 | { | |
895 | return (*phba->lpfc_hba_down_post)(phba); | |
896 | } | |
897 | ||
898 | /** | |
899 | * lpfc_hb_timeout - The HBA-timer timeout handler | |
900 | * @ptr: unsigned long holds the pointer to lpfc hba data structure. | |
901 | * | |
902 | * This is the HBA-timer timeout handler registered to the lpfc driver. When | |
903 | * this timer fires, a HBA timeout event shall be posted to the lpfc driver | |
904 | * work-port-events bitmap and the worker thread is notified. This timeout | |
905 | * event will be used by the worker thread to invoke the actual timeout | |
906 | * handler routine, lpfc_hb_timeout_handler. Any periodical operations will | |
907 | * be performed in the timeout handler and the HBA timeout event bit shall | |
908 | * be cleared by the worker thread after it has taken the event bitmap out. | |
909 | **/ | |
910 | static void | |
911 | lpfc_hb_timeout(unsigned long ptr) | |
912 | { | |
913 | struct lpfc_hba *phba; | |
914 | uint32_t tmo_posted; | |
915 | unsigned long iflag; | |
916 | ||
917 | phba = (struct lpfc_hba *)ptr; | |
918 | ||
919 | /* Check for heart beat timeout conditions */ | |
920 | spin_lock_irqsave(&phba->pport->work_port_lock, iflag); | |
921 | tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; | |
922 | if (!tmo_posted) | |
923 | phba->pport->work_port_events |= WORKER_HB_TMO; | |
924 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); | |
925 | ||
926 | /* Tell the worker thread there is work to do */ | |
927 | if (!tmo_posted) | |
928 | lpfc_worker_wake_up(phba); | |
929 | return; | |
930 | } | |
931 | ||
932 | /** | |
933 | * lpfc_rrq_timeout - The RRQ-timer timeout handler | |
934 | * @ptr: unsigned long holds the pointer to lpfc hba data structure. | |
935 | * | |
936 | * This is the RRQ-timer timeout handler registered to the lpfc driver. When | |
937 | * this timer fires, a RRQ timeout event shall be posted to the lpfc driver | |
938 | * work-port-events bitmap and the worker thread is notified. This timeout | |
939 | * event will be used by the worker thread to invoke the actual timeout | |
940 | * handler routine, lpfc_rrq_handler. Any periodical operations will | |
941 | * be performed in the timeout handler and the RRQ timeout event bit shall | |
942 | * be cleared by the worker thread after it has taken the event bitmap out. | |
943 | **/ | |
944 | static void | |
945 | lpfc_rrq_timeout(unsigned long ptr) | |
946 | { | |
947 | struct lpfc_hba *phba; | |
948 | uint32_t tmo_posted; | |
949 | unsigned long iflag; | |
950 | ||
951 | phba = (struct lpfc_hba *)ptr; | |
952 | spin_lock_irqsave(&phba->pport->work_port_lock, iflag); | |
953 | tmo_posted = phba->hba_flag & HBA_RRQ_ACTIVE; | |
954 | if (!tmo_posted) | |
955 | phba->hba_flag |= HBA_RRQ_ACTIVE; | |
956 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); | |
957 | if (!tmo_posted) | |
958 | lpfc_worker_wake_up(phba); | |
959 | } | |
960 | ||
961 | /** | |
962 | * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function | |
963 | * @phba: pointer to lpfc hba data structure. | |
964 | * @pmboxq: pointer to the driver internal queue element for mailbox command. | |
965 | * | |
966 | * This is the callback function to the lpfc heart-beat mailbox command. | |
967 | * If configured, the lpfc driver issues the heart-beat mailbox command to | |
968 | * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the | |
969 | * heart-beat mailbox command is issued, the driver shall set up heart-beat | |
970 | * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks | |
971 | * heart-beat outstanding state. Once the mailbox command comes back and | |
972 | * no error conditions detected, the heart-beat mailbox command timer is | |
973 | * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding | |
974 | * state is cleared for the next heart-beat. If the timer expired with the | |
975 | * heart-beat outstanding state set, the driver will put the HBA offline. | |
976 | **/ | |
977 | static void | |
978 | lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) | |
979 | { | |
980 | unsigned long drvr_flag; | |
981 | ||
982 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
983 | phba->hb_outstanding = 0; | |
984 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
985 | ||
986 | /* Check and reset heart-beat timer is necessary */ | |
987 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
988 | if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && | |
989 | !(phba->link_state == LPFC_HBA_ERROR) && | |
990 | !(phba->pport->load_flag & FC_UNLOADING)) | |
991 | mod_timer(&phba->hb_tmofunc, | |
992 | jiffies + HZ * LPFC_HB_MBOX_INTERVAL); | |
993 | return; | |
994 | } | |
995 | ||
996 | /** | |
997 | * lpfc_hb_timeout_handler - The HBA-timer timeout handler | |
998 | * @phba: pointer to lpfc hba data structure. | |
999 | * | |
1000 | * This is the actual HBA-timer timeout handler to be invoked by the worker | |
1001 | * thread whenever the HBA timer fired and HBA-timeout event posted. This | |
1002 | * handler performs any periodic operations needed for the device. If such | |
1003 | * periodic event has already been attended to either in the interrupt handler | |
1004 | * or by processing slow-ring or fast-ring events within the HBA-timer | |
1005 | * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets | |
1006 | * the timer for the next timeout period. If lpfc heart-beat mailbox command | |
1007 | * is configured and there is no heart-beat mailbox command outstanding, a | |
1008 | * heart-beat mailbox is issued and timer set properly. Otherwise, if there | |
1009 | * has been a heart-beat mailbox command outstanding, the HBA shall be put | |
1010 | * to offline. | |
1011 | **/ | |
1012 | void | |
1013 | lpfc_hb_timeout_handler(struct lpfc_hba *phba) | |
1014 | { | |
1015 | struct lpfc_vport **vports; | |
1016 | LPFC_MBOXQ_t *pmboxq; | |
1017 | struct lpfc_dmabuf *buf_ptr; | |
1018 | int retval, i; | |
1019 | struct lpfc_sli *psli = &phba->sli; | |
1020 | LIST_HEAD(completions); | |
1021 | ||
1022 | vports = lpfc_create_vport_work_array(phba); | |
1023 | if (vports != NULL) | |
1024 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) | |
1025 | lpfc_rcv_seq_check_edtov(vports[i]); | |
1026 | lpfc_destroy_vport_work_array(phba, vports); | |
1027 | ||
1028 | if ((phba->link_state == LPFC_HBA_ERROR) || | |
1029 | (phba->pport->load_flag & FC_UNLOADING) || | |
1030 | (phba->pport->fc_flag & FC_OFFLINE_MODE)) | |
1031 | return; | |
1032 | ||
1033 | spin_lock_irq(&phba->pport->work_port_lock); | |
1034 | ||
1035 | if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, | |
1036 | jiffies)) { | |
1037 | spin_unlock_irq(&phba->pport->work_port_lock); | |
1038 | if (!phba->hb_outstanding) | |
1039 | mod_timer(&phba->hb_tmofunc, | |
1040 | jiffies + HZ * LPFC_HB_MBOX_INTERVAL); | |
1041 | else | |
1042 | mod_timer(&phba->hb_tmofunc, | |
1043 | jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); | |
1044 | return; | |
1045 | } | |
1046 | spin_unlock_irq(&phba->pport->work_port_lock); | |
1047 | ||
1048 | if (phba->elsbuf_cnt && | |
1049 | (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { | |
1050 | spin_lock_irq(&phba->hbalock); | |
1051 | list_splice_init(&phba->elsbuf, &completions); | |
1052 | phba->elsbuf_cnt = 0; | |
1053 | phba->elsbuf_prev_cnt = 0; | |
1054 | spin_unlock_irq(&phba->hbalock); | |
1055 | ||
1056 | while (!list_empty(&completions)) { | |
1057 | list_remove_head(&completions, buf_ptr, | |
1058 | struct lpfc_dmabuf, list); | |
1059 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
1060 | kfree(buf_ptr); | |
1061 | } | |
1062 | } | |
1063 | phba->elsbuf_prev_cnt = phba->elsbuf_cnt; | |
1064 | ||
1065 | /* If there is no heart beat outstanding, issue a heartbeat command */ | |
1066 | if (phba->cfg_enable_hba_heartbeat) { | |
1067 | if (!phba->hb_outstanding) { | |
1068 | if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && | |
1069 | (list_empty(&psli->mboxq))) { | |
1070 | pmboxq = mempool_alloc(phba->mbox_mem_pool, | |
1071 | GFP_KERNEL); | |
1072 | if (!pmboxq) { | |
1073 | mod_timer(&phba->hb_tmofunc, | |
1074 | jiffies + | |
1075 | HZ * LPFC_HB_MBOX_INTERVAL); | |
1076 | return; | |
1077 | } | |
1078 | ||
1079 | lpfc_heart_beat(phba, pmboxq); | |
1080 | pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; | |
1081 | pmboxq->vport = phba->pport; | |
1082 | retval = lpfc_sli_issue_mbox(phba, pmboxq, | |
1083 | MBX_NOWAIT); | |
1084 | ||
1085 | if (retval != MBX_BUSY && | |
1086 | retval != MBX_SUCCESS) { | |
1087 | mempool_free(pmboxq, | |
1088 | phba->mbox_mem_pool); | |
1089 | mod_timer(&phba->hb_tmofunc, | |
1090 | jiffies + | |
1091 | HZ * LPFC_HB_MBOX_INTERVAL); | |
1092 | return; | |
1093 | } | |
1094 | phba->skipped_hb = 0; | |
1095 | phba->hb_outstanding = 1; | |
1096 | } else if (time_before_eq(phba->last_completion_time, | |
1097 | phba->skipped_hb)) { | |
1098 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
1099 | "2857 Last completion time not " | |
1100 | " updated in %d ms\n", | |
1101 | jiffies_to_msecs(jiffies | |
1102 | - phba->last_completion_time)); | |
1103 | } else | |
1104 | phba->skipped_hb = jiffies; | |
1105 | ||
1106 | mod_timer(&phba->hb_tmofunc, | |
1107 | jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); | |
1108 | return; | |
1109 | } else { | |
1110 | /* | |
1111 | * If heart beat timeout called with hb_outstanding set | |
1112 | * we need to give the hb mailbox cmd a chance to | |
1113 | * complete or TMO. | |
1114 | */ | |
1115 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
1116 | "0459 Adapter heartbeat still out" | |
1117 | "standing:last compl time was %d ms.\n", | |
1118 | jiffies_to_msecs(jiffies | |
1119 | - phba->last_completion_time)); | |
1120 | mod_timer(&phba->hb_tmofunc, | |
1121 | jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); | |
1122 | } | |
1123 | } | |
1124 | } | |
1125 | ||
1126 | /** | |
1127 | * lpfc_offline_eratt - Bring lpfc offline on hardware error attention | |
1128 | * @phba: pointer to lpfc hba data structure. | |
1129 | * | |
1130 | * This routine is called to bring the HBA offline when HBA hardware error | |
1131 | * other than Port Error 6 has been detected. | |
1132 | **/ | |
1133 | static void | |
1134 | lpfc_offline_eratt(struct lpfc_hba *phba) | |
1135 | { | |
1136 | struct lpfc_sli *psli = &phba->sli; | |
1137 | ||
1138 | spin_lock_irq(&phba->hbalock); | |
1139 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; | |
1140 | spin_unlock_irq(&phba->hbalock); | |
1141 | lpfc_offline_prep(phba); | |
1142 | ||
1143 | lpfc_offline(phba); | |
1144 | lpfc_reset_barrier(phba); | |
1145 | spin_lock_irq(&phba->hbalock); | |
1146 | lpfc_sli_brdreset(phba); | |
1147 | spin_unlock_irq(&phba->hbalock); | |
1148 | lpfc_hba_down_post(phba); | |
1149 | lpfc_sli_brdready(phba, HS_MBRDY); | |
1150 | lpfc_unblock_mgmt_io(phba); | |
1151 | phba->link_state = LPFC_HBA_ERROR; | |
1152 | return; | |
1153 | } | |
1154 | ||
1155 | /** | |
1156 | * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention | |
1157 | * @phba: pointer to lpfc hba data structure. | |
1158 | * | |
1159 | * This routine is called to bring a SLI4 HBA offline when HBA hardware error | |
1160 | * other than Port Error 6 has been detected. | |
1161 | **/ | |
1162 | static void | |
1163 | lpfc_sli4_offline_eratt(struct lpfc_hba *phba) | |
1164 | { | |
1165 | lpfc_offline_prep(phba); | |
1166 | lpfc_offline(phba); | |
1167 | lpfc_sli4_brdreset(phba); | |
1168 | lpfc_hba_down_post(phba); | |
1169 | lpfc_sli4_post_status_check(phba); | |
1170 | lpfc_unblock_mgmt_io(phba); | |
1171 | phba->link_state = LPFC_HBA_ERROR; | |
1172 | } | |
1173 | ||
1174 | /** | |
1175 | * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler | |
1176 | * @phba: pointer to lpfc hba data structure. | |
1177 | * | |
1178 | * This routine is invoked to handle the deferred HBA hardware error | |
1179 | * conditions. This type of error is indicated by HBA by setting ER1 | |
1180 | * and another ER bit in the host status register. The driver will | |
1181 | * wait until the ER1 bit clears before handling the error condition. | |
1182 | **/ | |
1183 | static void | |
1184 | lpfc_handle_deferred_eratt(struct lpfc_hba *phba) | |
1185 | { | |
1186 | uint32_t old_host_status = phba->work_hs; | |
1187 | struct lpfc_sli_ring *pring; | |
1188 | struct lpfc_sli *psli = &phba->sli; | |
1189 | ||
1190 | /* If the pci channel is offline, ignore possible errors, | |
1191 | * since we cannot communicate with the pci card anyway. | |
1192 | */ | |
1193 | if (pci_channel_offline(phba->pcidev)) { | |
1194 | spin_lock_irq(&phba->hbalock); | |
1195 | phba->hba_flag &= ~DEFER_ERATT; | |
1196 | spin_unlock_irq(&phba->hbalock); | |
1197 | return; | |
1198 | } | |
1199 | ||
1200 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1201 | "0479 Deferred Adapter Hardware Error " | |
1202 | "Data: x%x x%x x%x\n", | |
1203 | phba->work_hs, | |
1204 | phba->work_status[0], phba->work_status[1]); | |
1205 | ||
1206 | spin_lock_irq(&phba->hbalock); | |
1207 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; | |
1208 | spin_unlock_irq(&phba->hbalock); | |
1209 | ||
1210 | ||
1211 | /* | |
1212 | * Firmware stops when it triggred erratt. That could cause the I/Os | |
1213 | * dropped by the firmware. Error iocb (I/O) on txcmplq and let the | |
1214 | * SCSI layer retry it after re-establishing link. | |
1215 | */ | |
1216 | pring = &psli->ring[psli->fcp_ring]; | |
1217 | lpfc_sli_abort_iocb_ring(phba, pring); | |
1218 | ||
1219 | /* | |
1220 | * There was a firmware error. Take the hba offline and then | |
1221 | * attempt to restart it. | |
1222 | */ | |
1223 | lpfc_offline_prep(phba); | |
1224 | lpfc_offline(phba); | |
1225 | ||
1226 | /* Wait for the ER1 bit to clear.*/ | |
1227 | while (phba->work_hs & HS_FFER1) { | |
1228 | msleep(100); | |
1229 | phba->work_hs = readl(phba->HSregaddr); | |
1230 | /* If driver is unloading let the worker thread continue */ | |
1231 | if (phba->pport->load_flag & FC_UNLOADING) { | |
1232 | phba->work_hs = 0; | |
1233 | break; | |
1234 | } | |
1235 | } | |
1236 | ||
1237 | /* | |
1238 | * This is to ptrotect against a race condition in which | |
1239 | * first write to the host attention register clear the | |
1240 | * host status register. | |
1241 | */ | |
1242 | if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) | |
1243 | phba->work_hs = old_host_status & ~HS_FFER1; | |
1244 | ||
1245 | spin_lock_irq(&phba->hbalock); | |
1246 | phba->hba_flag &= ~DEFER_ERATT; | |
1247 | spin_unlock_irq(&phba->hbalock); | |
1248 | phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); | |
1249 | phba->work_status[1] = readl(phba->MBslimaddr + 0xac); | |
1250 | } | |
1251 | ||
1252 | static void | |
1253 | lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) | |
1254 | { | |
1255 | struct lpfc_board_event_header board_event; | |
1256 | struct Scsi_Host *shost; | |
1257 | ||
1258 | board_event.event_type = FC_REG_BOARD_EVENT; | |
1259 | board_event.subcategory = LPFC_EVENT_PORTINTERR; | |
1260 | shost = lpfc_shost_from_vport(phba->pport); | |
1261 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
1262 | sizeof(board_event), | |
1263 | (char *) &board_event, | |
1264 | LPFC_NL_VENDOR_ID); | |
1265 | } | |
1266 | ||
1267 | /** | |
1268 | * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler | |
1269 | * @phba: pointer to lpfc hba data structure. | |
1270 | * | |
1271 | * This routine is invoked to handle the following HBA hardware error | |
1272 | * conditions: | |
1273 | * 1 - HBA error attention interrupt | |
1274 | * 2 - DMA ring index out of range | |
1275 | * 3 - Mailbox command came back as unknown | |
1276 | **/ | |
1277 | static void | |
1278 | lpfc_handle_eratt_s3(struct lpfc_hba *phba) | |
1279 | { | |
1280 | struct lpfc_vport *vport = phba->pport; | |
1281 | struct lpfc_sli *psli = &phba->sli; | |
1282 | struct lpfc_sli_ring *pring; | |
1283 | uint32_t event_data; | |
1284 | unsigned long temperature; | |
1285 | struct temp_event temp_event_data; | |
1286 | struct Scsi_Host *shost; | |
1287 | ||
1288 | /* If the pci channel is offline, ignore possible errors, | |
1289 | * since we cannot communicate with the pci card anyway. | |
1290 | */ | |
1291 | if (pci_channel_offline(phba->pcidev)) { | |
1292 | spin_lock_irq(&phba->hbalock); | |
1293 | phba->hba_flag &= ~DEFER_ERATT; | |
1294 | spin_unlock_irq(&phba->hbalock); | |
1295 | return; | |
1296 | } | |
1297 | ||
1298 | /* If resets are disabled then leave the HBA alone and return */ | |
1299 | if (!phba->cfg_enable_hba_reset) | |
1300 | return; | |
1301 | ||
1302 | /* Send an internal error event to mgmt application */ | |
1303 | lpfc_board_errevt_to_mgmt(phba); | |
1304 | ||
1305 | if (phba->hba_flag & DEFER_ERATT) | |
1306 | lpfc_handle_deferred_eratt(phba); | |
1307 | ||
1308 | if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { | |
1309 | if (phba->work_hs & HS_FFER6) | |
1310 | /* Re-establishing Link */ | |
1311 | lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, | |
1312 | "1301 Re-establishing Link " | |
1313 | "Data: x%x x%x x%x\n", | |
1314 | phba->work_hs, phba->work_status[0], | |
1315 | phba->work_status[1]); | |
1316 | if (phba->work_hs & HS_FFER8) | |
1317 | /* Device Zeroization */ | |
1318 | lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, | |
1319 | "2861 Host Authentication device " | |
1320 | "zeroization Data:x%x x%x x%x\n", | |
1321 | phba->work_hs, phba->work_status[0], | |
1322 | phba->work_status[1]); | |
1323 | ||
1324 | spin_lock_irq(&phba->hbalock); | |
1325 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; | |
1326 | spin_unlock_irq(&phba->hbalock); | |
1327 | ||
1328 | /* | |
1329 | * Firmware stops when it triggled erratt with HS_FFER6. | |
1330 | * That could cause the I/Os dropped by the firmware. | |
1331 | * Error iocb (I/O) on txcmplq and let the SCSI layer | |
1332 | * retry it after re-establishing link. | |
1333 | */ | |
1334 | pring = &psli->ring[psli->fcp_ring]; | |
1335 | lpfc_sli_abort_iocb_ring(phba, pring); | |
1336 | ||
1337 | /* | |
1338 | * There was a firmware error. Take the hba offline and then | |
1339 | * attempt to restart it. | |
1340 | */ | |
1341 | lpfc_offline_prep(phba); | |
1342 | lpfc_offline(phba); | |
1343 | lpfc_sli_brdrestart(phba); | |
1344 | if (lpfc_online(phba) == 0) { /* Initialize the HBA */ | |
1345 | lpfc_unblock_mgmt_io(phba); | |
1346 | return; | |
1347 | } | |
1348 | lpfc_unblock_mgmt_io(phba); | |
1349 | } else if (phba->work_hs & HS_CRIT_TEMP) { | |
1350 | temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); | |
1351 | temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; | |
1352 | temp_event_data.event_code = LPFC_CRIT_TEMP; | |
1353 | temp_event_data.data = (uint32_t)temperature; | |
1354 | ||
1355 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1356 | "0406 Adapter maximum temperature exceeded " | |
1357 | "(%ld), taking this port offline " | |
1358 | "Data: x%x x%x x%x\n", | |
1359 | temperature, phba->work_hs, | |
1360 | phba->work_status[0], phba->work_status[1]); | |
1361 | ||
1362 | shost = lpfc_shost_from_vport(phba->pport); | |
1363 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
1364 | sizeof(temp_event_data), | |
1365 | (char *) &temp_event_data, | |
1366 | SCSI_NL_VID_TYPE_PCI | |
1367 | | PCI_VENDOR_ID_EMULEX); | |
1368 | ||
1369 | spin_lock_irq(&phba->hbalock); | |
1370 | phba->over_temp_state = HBA_OVER_TEMP; | |
1371 | spin_unlock_irq(&phba->hbalock); | |
1372 | lpfc_offline_eratt(phba); | |
1373 | ||
1374 | } else { | |
1375 | /* The if clause above forces this code path when the status | |
1376 | * failure is a value other than FFER6. Do not call the offline | |
1377 | * twice. This is the adapter hardware error path. | |
1378 | */ | |
1379 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1380 | "0457 Adapter Hardware Error " | |
1381 | "Data: x%x x%x x%x\n", | |
1382 | phba->work_hs, | |
1383 | phba->work_status[0], phba->work_status[1]); | |
1384 | ||
1385 | event_data = FC_REG_DUMP_EVENT; | |
1386 | shost = lpfc_shost_from_vport(vport); | |
1387 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
1388 | sizeof(event_data), (char *) &event_data, | |
1389 | SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); | |
1390 | ||
1391 | lpfc_offline_eratt(phba); | |
1392 | } | |
1393 | return; | |
1394 | } | |
1395 | ||
1396 | /** | |
1397 | * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler | |
1398 | * @phba: pointer to lpfc hba data structure. | |
1399 | * | |
1400 | * This routine is invoked to handle the SLI4 HBA hardware error attention | |
1401 | * conditions. | |
1402 | **/ | |
1403 | static void | |
1404 | lpfc_handle_eratt_s4(struct lpfc_hba *phba) | |
1405 | { | |
1406 | struct lpfc_vport *vport = phba->pport; | |
1407 | uint32_t event_data; | |
1408 | struct Scsi_Host *shost; | |
1409 | uint32_t if_type; | |
1410 | struct lpfc_register portstat_reg; | |
1411 | ||
1412 | /* If the pci channel is offline, ignore possible errors, since | |
1413 | * we cannot communicate with the pci card anyway. | |
1414 | */ | |
1415 | if (pci_channel_offline(phba->pcidev)) | |
1416 | return; | |
1417 | /* If resets are disabled then leave the HBA alone and return */ | |
1418 | if (!phba->cfg_enable_hba_reset) | |
1419 | return; | |
1420 | ||
1421 | /* Send an internal error event to mgmt application */ | |
1422 | lpfc_board_errevt_to_mgmt(phba); | |
1423 | ||
1424 | /* For now, the actual action for SLI4 device handling is not | |
1425 | * specified yet, just treated it as adaptor hardware failure | |
1426 | */ | |
1427 | event_data = FC_REG_DUMP_EVENT; | |
1428 | shost = lpfc_shost_from_vport(vport); | |
1429 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
1430 | sizeof(event_data), (char *) &event_data, | |
1431 | SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); | |
1432 | ||
1433 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); | |
1434 | switch (if_type) { | |
1435 | case LPFC_SLI_INTF_IF_TYPE_0: | |
1436 | lpfc_sli4_offline_eratt(phba); | |
1437 | break; | |
1438 | case LPFC_SLI_INTF_IF_TYPE_2: | |
1439 | portstat_reg.word0 = | |
1440 | readl(phba->sli4_hba.u.if_type2.STATUSregaddr); | |
1441 | ||
1442 | if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { | |
1443 | /* TODO: Register for Overtemp async events. */ | |
1444 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1445 | "2889 Port Overtemperature event, " | |
1446 | "taking port\n"); | |
1447 | spin_lock_irq(&phba->hbalock); | |
1448 | phba->over_temp_state = HBA_OVER_TEMP; | |
1449 | spin_unlock_irq(&phba->hbalock); | |
1450 | lpfc_sli4_offline_eratt(phba); | |
1451 | return; | |
1452 | } | |
1453 | if (bf_get(lpfc_sliport_status_rn, &portstat_reg)) { | |
1454 | /* | |
1455 | * TODO: Attempt port recovery via a port reset. | |
1456 | * When fully implemented, the driver should | |
1457 | * attempt to recover the port here and return. | |
1458 | * For now, log an error and take the port offline. | |
1459 | */ | |
1460 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1461 | "2887 Port Error: Attempting " | |
1462 | "Port Recovery\n"); | |
1463 | } | |
1464 | lpfc_sli4_offline_eratt(phba); | |
1465 | break; | |
1466 | case LPFC_SLI_INTF_IF_TYPE_1: | |
1467 | default: | |
1468 | break; | |
1469 | } | |
1470 | } | |
1471 | ||
1472 | /** | |
1473 | * lpfc_handle_eratt - Wrapper func for handling hba error attention | |
1474 | * @phba: pointer to lpfc HBA data structure. | |
1475 | * | |
1476 | * This routine wraps the actual SLI3 or SLI4 hba error attention handling | |
1477 | * routine from the API jump table function pointer from the lpfc_hba struct. | |
1478 | * | |
1479 | * Return codes | |
1480 | * 0 - success. | |
1481 | * Any other value - error. | |
1482 | **/ | |
1483 | void | |
1484 | lpfc_handle_eratt(struct lpfc_hba *phba) | |
1485 | { | |
1486 | (*phba->lpfc_handle_eratt)(phba); | |
1487 | } | |
1488 | ||
1489 | /** | |
1490 | * lpfc_handle_latt - The HBA link event handler | |
1491 | * @phba: pointer to lpfc hba data structure. | |
1492 | * | |
1493 | * This routine is invoked from the worker thread to handle a HBA host | |
1494 | * attention link event. | |
1495 | **/ | |
1496 | void | |
1497 | lpfc_handle_latt(struct lpfc_hba *phba) | |
1498 | { | |
1499 | struct lpfc_vport *vport = phba->pport; | |
1500 | struct lpfc_sli *psli = &phba->sli; | |
1501 | LPFC_MBOXQ_t *pmb; | |
1502 | volatile uint32_t control; | |
1503 | struct lpfc_dmabuf *mp; | |
1504 | int rc = 0; | |
1505 | ||
1506 | pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
1507 | if (!pmb) { | |
1508 | rc = 1; | |
1509 | goto lpfc_handle_latt_err_exit; | |
1510 | } | |
1511 | ||
1512 | mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
1513 | if (!mp) { | |
1514 | rc = 2; | |
1515 | goto lpfc_handle_latt_free_pmb; | |
1516 | } | |
1517 | ||
1518 | mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); | |
1519 | if (!mp->virt) { | |
1520 | rc = 3; | |
1521 | goto lpfc_handle_latt_free_mp; | |
1522 | } | |
1523 | ||
1524 | /* Cleanup any outstanding ELS commands */ | |
1525 | lpfc_els_flush_all_cmd(phba); | |
1526 | ||
1527 | psli->slistat.link_event++; | |
1528 | lpfc_read_topology(phba, pmb, mp); | |
1529 | pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; | |
1530 | pmb->vport = vport; | |
1531 | /* Block ELS IOCBs until we have processed this mbox command */ | |
1532 | phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; | |
1533 | rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); | |
1534 | if (rc == MBX_NOT_FINISHED) { | |
1535 | rc = 4; | |
1536 | goto lpfc_handle_latt_free_mbuf; | |
1537 | } | |
1538 | ||
1539 | /* Clear Link Attention in HA REG */ | |
1540 | spin_lock_irq(&phba->hbalock); | |
1541 | writel(HA_LATT, phba->HAregaddr); | |
1542 | readl(phba->HAregaddr); /* flush */ | |
1543 | spin_unlock_irq(&phba->hbalock); | |
1544 | ||
1545 | return; | |
1546 | ||
1547 | lpfc_handle_latt_free_mbuf: | |
1548 | phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; | |
1549 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
1550 | lpfc_handle_latt_free_mp: | |
1551 | kfree(mp); | |
1552 | lpfc_handle_latt_free_pmb: | |
1553 | mempool_free(pmb, phba->mbox_mem_pool); | |
1554 | lpfc_handle_latt_err_exit: | |
1555 | /* Enable Link attention interrupts */ | |
1556 | spin_lock_irq(&phba->hbalock); | |
1557 | psli->sli_flag |= LPFC_PROCESS_LA; | |
1558 | control = readl(phba->HCregaddr); | |
1559 | control |= HC_LAINT_ENA; | |
1560 | writel(control, phba->HCregaddr); | |
1561 | readl(phba->HCregaddr); /* flush */ | |
1562 | ||
1563 | /* Clear Link Attention in HA REG */ | |
1564 | writel(HA_LATT, phba->HAregaddr); | |
1565 | readl(phba->HAregaddr); /* flush */ | |
1566 | spin_unlock_irq(&phba->hbalock); | |
1567 | lpfc_linkdown(phba); | |
1568 | phba->link_state = LPFC_HBA_ERROR; | |
1569 | ||
1570 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
1571 | "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); | |
1572 | ||
1573 | return; | |
1574 | } | |
1575 | ||
1576 | /** | |
1577 | * lpfc_parse_vpd - Parse VPD (Vital Product Data) | |
1578 | * @phba: pointer to lpfc hba data structure. | |
1579 | * @vpd: pointer to the vital product data. | |
1580 | * @len: length of the vital product data in bytes. | |
1581 | * | |
1582 | * This routine parses the Vital Product Data (VPD). The VPD is treated as | |
1583 | * an array of characters. In this routine, the ModelName, ProgramType, and | |
1584 | * ModelDesc, etc. fields of the phba data structure will be populated. | |
1585 | * | |
1586 | * Return codes | |
1587 | * 0 - pointer to the VPD passed in is NULL | |
1588 | * 1 - success | |
1589 | **/ | |
1590 | int | |
1591 | lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) | |
1592 | { | |
1593 | uint8_t lenlo, lenhi; | |
1594 | int Length; | |
1595 | int i, j; | |
1596 | int finished = 0; | |
1597 | int index = 0; | |
1598 | ||
1599 | if (!vpd) | |
1600 | return 0; | |
1601 | ||
1602 | /* Vital Product */ | |
1603 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
1604 | "0455 Vital Product Data: x%x x%x x%x x%x\n", | |
1605 | (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], | |
1606 | (uint32_t) vpd[3]); | |
1607 | while (!finished && (index < (len - 4))) { | |
1608 | switch (vpd[index]) { | |
1609 | case 0x82: | |
1610 | case 0x91: | |
1611 | index += 1; | |
1612 | lenlo = vpd[index]; | |
1613 | index += 1; | |
1614 | lenhi = vpd[index]; | |
1615 | index += 1; | |
1616 | i = ((((unsigned short)lenhi) << 8) + lenlo); | |
1617 | index += i; | |
1618 | break; | |
1619 | case 0x90: | |
1620 | index += 1; | |
1621 | lenlo = vpd[index]; | |
1622 | index += 1; | |
1623 | lenhi = vpd[index]; | |
1624 | index += 1; | |
1625 | Length = ((((unsigned short)lenhi) << 8) + lenlo); | |
1626 | if (Length > len - index) | |
1627 | Length = len - index; | |
1628 | while (Length > 0) { | |
1629 | /* Look for Serial Number */ | |
1630 | if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { | |
1631 | index += 2; | |
1632 | i = vpd[index]; | |
1633 | index += 1; | |
1634 | j = 0; | |
1635 | Length -= (3+i); | |
1636 | while(i--) { | |
1637 | phba->SerialNumber[j++] = vpd[index++]; | |
1638 | if (j == 31) | |
1639 | break; | |
1640 | } | |
1641 | phba->SerialNumber[j] = 0; | |
1642 | continue; | |
1643 | } | |
1644 | else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { | |
1645 | phba->vpd_flag |= VPD_MODEL_DESC; | |
1646 | index += 2; | |
1647 | i = vpd[index]; | |
1648 | index += 1; | |
1649 | j = 0; | |
1650 | Length -= (3+i); | |
1651 | while(i--) { | |
1652 | phba->ModelDesc[j++] = vpd[index++]; | |
1653 | if (j == 255) | |
1654 | break; | |
1655 | } | |
1656 | phba->ModelDesc[j] = 0; | |
1657 | continue; | |
1658 | } | |
1659 | else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { | |
1660 | phba->vpd_flag |= VPD_MODEL_NAME; | |
1661 | index += 2; | |
1662 | i = vpd[index]; | |
1663 | index += 1; | |
1664 | j = 0; | |
1665 | Length -= (3+i); | |
1666 | while(i--) { | |
1667 | phba->ModelName[j++] = vpd[index++]; | |
1668 | if (j == 79) | |
1669 | break; | |
1670 | } | |
1671 | phba->ModelName[j] = 0; | |
1672 | continue; | |
1673 | } | |
1674 | else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { | |
1675 | phba->vpd_flag |= VPD_PROGRAM_TYPE; | |
1676 | index += 2; | |
1677 | i = vpd[index]; | |
1678 | index += 1; | |
1679 | j = 0; | |
1680 | Length -= (3+i); | |
1681 | while(i--) { | |
1682 | phba->ProgramType[j++] = vpd[index++]; | |
1683 | if (j == 255) | |
1684 | break; | |
1685 | } | |
1686 | phba->ProgramType[j] = 0; | |
1687 | continue; | |
1688 | } | |
1689 | else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { | |
1690 | phba->vpd_flag |= VPD_PORT; | |
1691 | index += 2; | |
1692 | i = vpd[index]; | |
1693 | index += 1; | |
1694 | j = 0; | |
1695 | Length -= (3+i); | |
1696 | while(i--) { | |
1697 | phba->Port[j++] = vpd[index++]; | |
1698 | if (j == 19) | |
1699 | break; | |
1700 | } | |
1701 | phba->Port[j] = 0; | |
1702 | continue; | |
1703 | } | |
1704 | else { | |
1705 | index += 2; | |
1706 | i = vpd[index]; | |
1707 | index += 1; | |
1708 | index += i; | |
1709 | Length -= (3 + i); | |
1710 | } | |
1711 | } | |
1712 | finished = 0; | |
1713 | break; | |
1714 | case 0x78: | |
1715 | finished = 1; | |
1716 | break; | |
1717 | default: | |
1718 | index ++; | |
1719 | break; | |
1720 | } | |
1721 | } | |
1722 | ||
1723 | return(1); | |
1724 | } | |
1725 | ||
1726 | /** | |
1727 | * lpfc_get_hba_model_desc - Retrieve HBA device model name and description | |
1728 | * @phba: pointer to lpfc hba data structure. | |
1729 | * @mdp: pointer to the data structure to hold the derived model name. | |
1730 | * @descp: pointer to the data structure to hold the derived description. | |
1731 | * | |
1732 | * This routine retrieves HBA's description based on its registered PCI device | |
1733 | * ID. The @descp passed into this function points to an array of 256 chars. It | |
1734 | * shall be returned with the model name, maximum speed, and the host bus type. | |
1735 | * The @mdp passed into this function points to an array of 80 chars. When the | |
1736 | * function returns, the @mdp will be filled with the model name. | |
1737 | **/ | |
1738 | static void | |
1739 | lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) | |
1740 | { | |
1741 | lpfc_vpd_t *vp; | |
1742 | uint16_t dev_id = phba->pcidev->device; | |
1743 | int max_speed; | |
1744 | int GE = 0; | |
1745 | int oneConnect = 0; /* default is not a oneConnect */ | |
1746 | struct { | |
1747 | char *name; | |
1748 | char *bus; | |
1749 | char *function; | |
1750 | } m = {"<Unknown>", "", ""}; | |
1751 | ||
1752 | if (mdp && mdp[0] != '\0' | |
1753 | && descp && descp[0] != '\0') | |
1754 | return; | |
1755 | ||
1756 | if (phba->lmt & LMT_10Gb) | |
1757 | max_speed = 10; | |
1758 | else if (phba->lmt & LMT_8Gb) | |
1759 | max_speed = 8; | |
1760 | else if (phba->lmt & LMT_4Gb) | |
1761 | max_speed = 4; | |
1762 | else if (phba->lmt & LMT_2Gb) | |
1763 | max_speed = 2; | |
1764 | else | |
1765 | max_speed = 1; | |
1766 | ||
1767 | vp = &phba->vpd; | |
1768 | ||
1769 | switch (dev_id) { | |
1770 | case PCI_DEVICE_ID_FIREFLY: | |
1771 | m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; | |
1772 | break; | |
1773 | case PCI_DEVICE_ID_SUPERFLY: | |
1774 | if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) | |
1775 | m = (typeof(m)){"LP7000", "PCI", | |
1776 | "Fibre Channel Adapter"}; | |
1777 | else | |
1778 | m = (typeof(m)){"LP7000E", "PCI", | |
1779 | "Fibre Channel Adapter"}; | |
1780 | break; | |
1781 | case PCI_DEVICE_ID_DRAGONFLY: | |
1782 | m = (typeof(m)){"LP8000", "PCI", | |
1783 | "Fibre Channel Adapter"}; | |
1784 | break; | |
1785 | case PCI_DEVICE_ID_CENTAUR: | |
1786 | if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) | |
1787 | m = (typeof(m)){"LP9002", "PCI", | |
1788 | "Fibre Channel Adapter"}; | |
1789 | else | |
1790 | m = (typeof(m)){"LP9000", "PCI", | |
1791 | "Fibre Channel Adapter"}; | |
1792 | break; | |
1793 | case PCI_DEVICE_ID_RFLY: | |
1794 | m = (typeof(m)){"LP952", "PCI", | |
1795 | "Fibre Channel Adapter"}; | |
1796 | break; | |
1797 | case PCI_DEVICE_ID_PEGASUS: | |
1798 | m = (typeof(m)){"LP9802", "PCI-X", | |
1799 | "Fibre Channel Adapter"}; | |
1800 | break; | |
1801 | case PCI_DEVICE_ID_THOR: | |
1802 | m = (typeof(m)){"LP10000", "PCI-X", | |
1803 | "Fibre Channel Adapter"}; | |
1804 | break; | |
1805 | case PCI_DEVICE_ID_VIPER: | |
1806 | m = (typeof(m)){"LPX1000", "PCI-X", | |
1807 | "Fibre Channel Adapter"}; | |
1808 | break; | |
1809 | case PCI_DEVICE_ID_PFLY: | |
1810 | m = (typeof(m)){"LP982", "PCI-X", | |
1811 | "Fibre Channel Adapter"}; | |
1812 | break; | |
1813 | case PCI_DEVICE_ID_TFLY: | |
1814 | m = (typeof(m)){"LP1050", "PCI-X", | |
1815 | "Fibre Channel Adapter"}; | |
1816 | break; | |
1817 | case PCI_DEVICE_ID_HELIOS: | |
1818 | m = (typeof(m)){"LP11000", "PCI-X2", | |
1819 | "Fibre Channel Adapter"}; | |
1820 | break; | |
1821 | case PCI_DEVICE_ID_HELIOS_SCSP: | |
1822 | m = (typeof(m)){"LP11000-SP", "PCI-X2", | |
1823 | "Fibre Channel Adapter"}; | |
1824 | break; | |
1825 | case PCI_DEVICE_ID_HELIOS_DCSP: | |
1826 | m = (typeof(m)){"LP11002-SP", "PCI-X2", | |
1827 | "Fibre Channel Adapter"}; | |
1828 | break; | |
1829 | case PCI_DEVICE_ID_NEPTUNE: | |
1830 | m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; | |
1831 | break; | |
1832 | case PCI_DEVICE_ID_NEPTUNE_SCSP: | |
1833 | m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; | |
1834 | break; | |
1835 | case PCI_DEVICE_ID_NEPTUNE_DCSP: | |
1836 | m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; | |
1837 | break; | |
1838 | case PCI_DEVICE_ID_BMID: | |
1839 | m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; | |
1840 | break; | |
1841 | case PCI_DEVICE_ID_BSMB: | |
1842 | m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; | |
1843 | break; | |
1844 | case PCI_DEVICE_ID_ZEPHYR: | |
1845 | m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; | |
1846 | break; | |
1847 | case PCI_DEVICE_ID_ZEPHYR_SCSP: | |
1848 | m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; | |
1849 | break; | |
1850 | case PCI_DEVICE_ID_ZEPHYR_DCSP: | |
1851 | m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; | |
1852 | GE = 1; | |
1853 | break; | |
1854 | case PCI_DEVICE_ID_ZMID: | |
1855 | m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; | |
1856 | break; | |
1857 | case PCI_DEVICE_ID_ZSMB: | |
1858 | m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; | |
1859 | break; | |
1860 | case PCI_DEVICE_ID_LP101: | |
1861 | m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; | |
1862 | break; | |
1863 | case PCI_DEVICE_ID_LP10000S: | |
1864 | m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; | |
1865 | break; | |
1866 | case PCI_DEVICE_ID_LP11000S: | |
1867 | m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; | |
1868 | break; | |
1869 | case PCI_DEVICE_ID_LPE11000S: | |
1870 | m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; | |
1871 | break; | |
1872 | case PCI_DEVICE_ID_SAT: | |
1873 | m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; | |
1874 | break; | |
1875 | case PCI_DEVICE_ID_SAT_MID: | |
1876 | m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; | |
1877 | break; | |
1878 | case PCI_DEVICE_ID_SAT_SMB: | |
1879 | m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; | |
1880 | break; | |
1881 | case PCI_DEVICE_ID_SAT_DCSP: | |
1882 | m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; | |
1883 | break; | |
1884 | case PCI_DEVICE_ID_SAT_SCSP: | |
1885 | m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; | |
1886 | break; | |
1887 | case PCI_DEVICE_ID_SAT_S: | |
1888 | m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; | |
1889 | break; | |
1890 | case PCI_DEVICE_ID_HORNET: | |
1891 | m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; | |
1892 | GE = 1; | |
1893 | break; | |
1894 | case PCI_DEVICE_ID_PROTEUS_VF: | |
1895 | m = (typeof(m)){"LPev12000", "PCIe IOV", | |
1896 | "Fibre Channel Adapter"}; | |
1897 | break; | |
1898 | case PCI_DEVICE_ID_PROTEUS_PF: | |
1899 | m = (typeof(m)){"LPev12000", "PCIe IOV", | |
1900 | "Fibre Channel Adapter"}; | |
1901 | break; | |
1902 | case PCI_DEVICE_ID_PROTEUS_S: | |
1903 | m = (typeof(m)){"LPemv12002-S", "PCIe IOV", | |
1904 | "Fibre Channel Adapter"}; | |
1905 | break; | |
1906 | case PCI_DEVICE_ID_TIGERSHARK: | |
1907 | oneConnect = 1; | |
1908 | m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; | |
1909 | break; | |
1910 | case PCI_DEVICE_ID_TOMCAT: | |
1911 | oneConnect = 1; | |
1912 | m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; | |
1913 | break; | |
1914 | case PCI_DEVICE_ID_FALCON: | |
1915 | m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", | |
1916 | "EmulexSecure Fibre"}; | |
1917 | break; | |
1918 | case PCI_DEVICE_ID_BALIUS: | |
1919 | m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", | |
1920 | "Fibre Channel Adapter"}; | |
1921 | break; | |
1922 | case PCI_DEVICE_ID_LANCER_FC: | |
1923 | oneConnect = 1; | |
1924 | m = (typeof(m)){"Undefined", "PCIe", "Fibre Channel Adapter"}; | |
1925 | break; | |
1926 | case PCI_DEVICE_ID_LANCER_FCOE: | |
1927 | oneConnect = 1; | |
1928 | m = (typeof(m)){"Undefined", "PCIe", "FCoE"}; | |
1929 | break; | |
1930 | default: | |
1931 | m = (typeof(m)){"Unknown", "", ""}; | |
1932 | break; | |
1933 | } | |
1934 | ||
1935 | if (mdp && mdp[0] == '\0') | |
1936 | snprintf(mdp, 79,"%s", m.name); | |
1937 | /* oneConnect hba requires special processing, they are all initiators | |
1938 | * and we put the port number on the end | |
1939 | */ | |
1940 | if (descp && descp[0] == '\0') { | |
1941 | if (oneConnect) | |
1942 | snprintf(descp, 255, | |
1943 | "Emulex OneConnect %s, %s Initiator, Port %s", | |
1944 | m.name, m.function, | |
1945 | phba->Port); | |
1946 | else | |
1947 | snprintf(descp, 255, | |
1948 | "Emulex %s %d%s %s %s", | |
1949 | m.name, max_speed, (GE) ? "GE" : "Gb", | |
1950 | m.bus, m.function); | |
1951 | } | |
1952 | } | |
1953 | ||
1954 | /** | |
1955 | * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring | |
1956 | * @phba: pointer to lpfc hba data structure. | |
1957 | * @pring: pointer to a IOCB ring. | |
1958 | * @cnt: the number of IOCBs to be posted to the IOCB ring. | |
1959 | * | |
1960 | * This routine posts a given number of IOCBs with the associated DMA buffer | |
1961 | * descriptors specified by the cnt argument to the given IOCB ring. | |
1962 | * | |
1963 | * Return codes | |
1964 | * The number of IOCBs NOT able to be posted to the IOCB ring. | |
1965 | **/ | |
1966 | int | |
1967 | lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) | |
1968 | { | |
1969 | IOCB_t *icmd; | |
1970 | struct lpfc_iocbq *iocb; | |
1971 | struct lpfc_dmabuf *mp1, *mp2; | |
1972 | ||
1973 | cnt += pring->missbufcnt; | |
1974 | ||
1975 | /* While there are buffers to post */ | |
1976 | while (cnt > 0) { | |
1977 | /* Allocate buffer for command iocb */ | |
1978 | iocb = lpfc_sli_get_iocbq(phba); | |
1979 | if (iocb == NULL) { | |
1980 | pring->missbufcnt = cnt; | |
1981 | return cnt; | |
1982 | } | |
1983 | icmd = &iocb->iocb; | |
1984 | ||
1985 | /* 2 buffers can be posted per command */ | |
1986 | /* Allocate buffer to post */ | |
1987 | mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); | |
1988 | if (mp1) | |
1989 | mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); | |
1990 | if (!mp1 || !mp1->virt) { | |
1991 | kfree(mp1); | |
1992 | lpfc_sli_release_iocbq(phba, iocb); | |
1993 | pring->missbufcnt = cnt; | |
1994 | return cnt; | |
1995 | } | |
1996 | ||
1997 | INIT_LIST_HEAD(&mp1->list); | |
1998 | /* Allocate buffer to post */ | |
1999 | if (cnt > 1) { | |
2000 | mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); | |
2001 | if (mp2) | |
2002 | mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, | |
2003 | &mp2->phys); | |
2004 | if (!mp2 || !mp2->virt) { | |
2005 | kfree(mp2); | |
2006 | lpfc_mbuf_free(phba, mp1->virt, mp1->phys); | |
2007 | kfree(mp1); | |
2008 | lpfc_sli_release_iocbq(phba, iocb); | |
2009 | pring->missbufcnt = cnt; | |
2010 | return cnt; | |
2011 | } | |
2012 | ||
2013 | INIT_LIST_HEAD(&mp2->list); | |
2014 | } else { | |
2015 | mp2 = NULL; | |
2016 | } | |
2017 | ||
2018 | icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); | |
2019 | icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); | |
2020 | icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; | |
2021 | icmd->ulpBdeCount = 1; | |
2022 | cnt--; | |
2023 | if (mp2) { | |
2024 | icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); | |
2025 | icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); | |
2026 | icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; | |
2027 | cnt--; | |
2028 | icmd->ulpBdeCount = 2; | |
2029 | } | |
2030 | ||
2031 | icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; | |
2032 | icmd->ulpLe = 1; | |
2033 | ||
2034 | if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == | |
2035 | IOCB_ERROR) { | |
2036 | lpfc_mbuf_free(phba, mp1->virt, mp1->phys); | |
2037 | kfree(mp1); | |
2038 | cnt++; | |
2039 | if (mp2) { | |
2040 | lpfc_mbuf_free(phba, mp2->virt, mp2->phys); | |
2041 | kfree(mp2); | |
2042 | cnt++; | |
2043 | } | |
2044 | lpfc_sli_release_iocbq(phba, iocb); | |
2045 | pring->missbufcnt = cnt; | |
2046 | return cnt; | |
2047 | } | |
2048 | lpfc_sli_ringpostbuf_put(phba, pring, mp1); | |
2049 | if (mp2) | |
2050 | lpfc_sli_ringpostbuf_put(phba, pring, mp2); | |
2051 | } | |
2052 | pring->missbufcnt = 0; | |
2053 | return 0; | |
2054 | } | |
2055 | ||
2056 | /** | |
2057 | * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring | |
2058 | * @phba: pointer to lpfc hba data structure. | |
2059 | * | |
2060 | * This routine posts initial receive IOCB buffers to the ELS ring. The | |
2061 | * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is | |
2062 | * set to 64 IOCBs. | |
2063 | * | |
2064 | * Return codes | |
2065 | * 0 - success (currently always success) | |
2066 | **/ | |
2067 | static int | |
2068 | lpfc_post_rcv_buf(struct lpfc_hba *phba) | |
2069 | { | |
2070 | struct lpfc_sli *psli = &phba->sli; | |
2071 | ||
2072 | /* Ring 0, ELS / CT buffers */ | |
2073 | lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); | |
2074 | /* Ring 2 - FCP no buffers needed */ | |
2075 | ||
2076 | return 0; | |
2077 | } | |
2078 | ||
2079 | #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) | |
2080 | ||
2081 | /** | |
2082 | * lpfc_sha_init - Set up initial array of hash table entries | |
2083 | * @HashResultPointer: pointer to an array as hash table. | |
2084 | * | |
2085 | * This routine sets up the initial values to the array of hash table entries | |
2086 | * for the LC HBAs. | |
2087 | **/ | |
2088 | static void | |
2089 | lpfc_sha_init(uint32_t * HashResultPointer) | |
2090 | { | |
2091 | HashResultPointer[0] = 0x67452301; | |
2092 | HashResultPointer[1] = 0xEFCDAB89; | |
2093 | HashResultPointer[2] = 0x98BADCFE; | |
2094 | HashResultPointer[3] = 0x10325476; | |
2095 | HashResultPointer[4] = 0xC3D2E1F0; | |
2096 | } | |
2097 | ||
2098 | /** | |
2099 | * lpfc_sha_iterate - Iterate initial hash table with the working hash table | |
2100 | * @HashResultPointer: pointer to an initial/result hash table. | |
2101 | * @HashWorkingPointer: pointer to an working hash table. | |
2102 | * | |
2103 | * This routine iterates an initial hash table pointed by @HashResultPointer | |
2104 | * with the values from the working hash table pointeed by @HashWorkingPointer. | |
2105 | * The results are putting back to the initial hash table, returned through | |
2106 | * the @HashResultPointer as the result hash table. | |
2107 | **/ | |
2108 | static void | |
2109 | lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) | |
2110 | { | |
2111 | int t; | |
2112 | uint32_t TEMP; | |
2113 | uint32_t A, B, C, D, E; | |
2114 | t = 16; | |
2115 | do { | |
2116 | HashWorkingPointer[t] = | |
2117 | S(1, | |
2118 | HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - | |
2119 | 8] ^ | |
2120 | HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); | |
2121 | } while (++t <= 79); | |
2122 | t = 0; | |
2123 | A = HashResultPointer[0]; | |
2124 | B = HashResultPointer[1]; | |
2125 | C = HashResultPointer[2]; | |
2126 | D = HashResultPointer[3]; | |
2127 | E = HashResultPointer[4]; | |
2128 | ||
2129 | do { | |
2130 | if (t < 20) { | |
2131 | TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; | |
2132 | } else if (t < 40) { | |
2133 | TEMP = (B ^ C ^ D) + 0x6ED9EBA1; | |
2134 | } else if (t < 60) { | |
2135 | TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; | |
2136 | } else { | |
2137 | TEMP = (B ^ C ^ D) + 0xCA62C1D6; | |
2138 | } | |
2139 | TEMP += S(5, A) + E + HashWorkingPointer[t]; | |
2140 | E = D; | |
2141 | D = C; | |
2142 | C = S(30, B); | |
2143 | B = A; | |
2144 | A = TEMP; | |
2145 | } while (++t <= 79); | |
2146 | ||
2147 | HashResultPointer[0] += A; | |
2148 | HashResultPointer[1] += B; | |
2149 | HashResultPointer[2] += C; | |
2150 | HashResultPointer[3] += D; | |
2151 | HashResultPointer[4] += E; | |
2152 | ||
2153 | } | |
2154 | ||
2155 | /** | |
2156 | * lpfc_challenge_key - Create challenge key based on WWPN of the HBA | |
2157 | * @RandomChallenge: pointer to the entry of host challenge random number array. | |
2158 | * @HashWorking: pointer to the entry of the working hash array. | |
2159 | * | |
2160 | * This routine calculates the working hash array referred by @HashWorking | |
2161 | * from the challenge random numbers associated with the host, referred by | |
2162 | * @RandomChallenge. The result is put into the entry of the working hash | |
2163 | * array and returned by reference through @HashWorking. | |
2164 | **/ | |
2165 | static void | |
2166 | lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) | |
2167 | { | |
2168 | *HashWorking = (*RandomChallenge ^ *HashWorking); | |
2169 | } | |
2170 | ||
2171 | /** | |
2172 | * lpfc_hba_init - Perform special handling for LC HBA initialization | |
2173 | * @phba: pointer to lpfc hba data structure. | |
2174 | * @hbainit: pointer to an array of unsigned 32-bit integers. | |
2175 | * | |
2176 | * This routine performs the special handling for LC HBA initialization. | |
2177 | **/ | |
2178 | void | |
2179 | lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) | |
2180 | { | |
2181 | int t; | |
2182 | uint32_t *HashWorking; | |
2183 | uint32_t *pwwnn = (uint32_t *) phba->wwnn; | |
2184 | ||
2185 | HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); | |
2186 | if (!HashWorking) | |
2187 | return; | |
2188 | ||
2189 | HashWorking[0] = HashWorking[78] = *pwwnn++; | |
2190 | HashWorking[1] = HashWorking[79] = *pwwnn; | |
2191 | ||
2192 | for (t = 0; t < 7; t++) | |
2193 | lpfc_challenge_key(phba->RandomData + t, HashWorking + t); | |
2194 | ||
2195 | lpfc_sha_init(hbainit); | |
2196 | lpfc_sha_iterate(hbainit, HashWorking); | |
2197 | kfree(HashWorking); | |
2198 | } | |
2199 | ||
2200 | /** | |
2201 | * lpfc_cleanup - Performs vport cleanups before deleting a vport | |
2202 | * @vport: pointer to a virtual N_Port data structure. | |
2203 | * | |
2204 | * This routine performs the necessary cleanups before deleting the @vport. | |
2205 | * It invokes the discovery state machine to perform necessary state | |
2206 | * transitions and to release the ndlps associated with the @vport. Note, | |
2207 | * the physical port is treated as @vport 0. | |
2208 | **/ | |
2209 | void | |
2210 | lpfc_cleanup(struct lpfc_vport *vport) | |
2211 | { | |
2212 | struct lpfc_hba *phba = vport->phba; | |
2213 | struct lpfc_nodelist *ndlp, *next_ndlp; | |
2214 | int i = 0; | |
2215 | ||
2216 | if (phba->link_state > LPFC_LINK_DOWN) | |
2217 | lpfc_port_link_failure(vport); | |
2218 | ||
2219 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
2220 | if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2221 | ndlp = lpfc_enable_node(vport, ndlp, | |
2222 | NLP_STE_UNUSED_NODE); | |
2223 | if (!ndlp) | |
2224 | continue; | |
2225 | spin_lock_irq(&phba->ndlp_lock); | |
2226 | NLP_SET_FREE_REQ(ndlp); | |
2227 | spin_unlock_irq(&phba->ndlp_lock); | |
2228 | /* Trigger the release of the ndlp memory */ | |
2229 | lpfc_nlp_put(ndlp); | |
2230 | continue; | |
2231 | } | |
2232 | spin_lock_irq(&phba->ndlp_lock); | |
2233 | if (NLP_CHK_FREE_REQ(ndlp)) { | |
2234 | /* The ndlp should not be in memory free mode already */ | |
2235 | spin_unlock_irq(&phba->ndlp_lock); | |
2236 | continue; | |
2237 | } else | |
2238 | /* Indicate request for freeing ndlp memory */ | |
2239 | NLP_SET_FREE_REQ(ndlp); | |
2240 | spin_unlock_irq(&phba->ndlp_lock); | |
2241 | ||
2242 | if (vport->port_type != LPFC_PHYSICAL_PORT && | |
2243 | ndlp->nlp_DID == Fabric_DID) { | |
2244 | /* Just free up ndlp with Fabric_DID for vports */ | |
2245 | lpfc_nlp_put(ndlp); | |
2246 | continue; | |
2247 | } | |
2248 | ||
2249 | if (ndlp->nlp_type & NLP_FABRIC) | |
2250 | lpfc_disc_state_machine(vport, ndlp, NULL, | |
2251 | NLP_EVT_DEVICE_RECOVERY); | |
2252 | ||
2253 | lpfc_disc_state_machine(vport, ndlp, NULL, | |
2254 | NLP_EVT_DEVICE_RM); | |
2255 | ||
2256 | } | |
2257 | ||
2258 | /* At this point, ALL ndlp's should be gone | |
2259 | * because of the previous NLP_EVT_DEVICE_RM. | |
2260 | * Lets wait for this to happen, if needed. | |
2261 | */ | |
2262 | while (!list_empty(&vport->fc_nodes)) { | |
2263 | if (i++ > 3000) { | |
2264 | lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, | |
2265 | "0233 Nodelist not empty\n"); | |
2266 | list_for_each_entry_safe(ndlp, next_ndlp, | |
2267 | &vport->fc_nodes, nlp_listp) { | |
2268 | lpfc_printf_vlog(ndlp->vport, KERN_ERR, | |
2269 | LOG_NODE, | |
2270 | "0282 did:x%x ndlp:x%p " | |
2271 | "usgmap:x%x refcnt:%d\n", | |
2272 | ndlp->nlp_DID, (void *)ndlp, | |
2273 | ndlp->nlp_usg_map, | |
2274 | atomic_read( | |
2275 | &ndlp->kref.refcount)); | |
2276 | } | |
2277 | break; | |
2278 | } | |
2279 | ||
2280 | /* Wait for any activity on ndlps to settle */ | |
2281 | msleep(10); | |
2282 | } | |
2283 | } | |
2284 | ||
2285 | /** | |
2286 | * lpfc_stop_vport_timers - Stop all the timers associated with a vport | |
2287 | * @vport: pointer to a virtual N_Port data structure. | |
2288 | * | |
2289 | * This routine stops all the timers associated with a @vport. This function | |
2290 | * is invoked before disabling or deleting a @vport. Note that the physical | |
2291 | * port is treated as @vport 0. | |
2292 | **/ | |
2293 | void | |
2294 | lpfc_stop_vport_timers(struct lpfc_vport *vport) | |
2295 | { | |
2296 | del_timer_sync(&vport->els_tmofunc); | |
2297 | del_timer_sync(&vport->fc_fdmitmo); | |
2298 | lpfc_can_disctmo(vport); | |
2299 | return; | |
2300 | } | |
2301 | ||
2302 | /** | |
2303 | * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer | |
2304 | * @phba: pointer to lpfc hba data structure. | |
2305 | * | |
2306 | * This routine stops the SLI4 FCF rediscover wait timer if it's on. The | |
2307 | * caller of this routine should already hold the host lock. | |
2308 | **/ | |
2309 | void | |
2310 | __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) | |
2311 | { | |
2312 | /* Clear pending FCF rediscovery wait flag */ | |
2313 | phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; | |
2314 | ||
2315 | /* Now, try to stop the timer */ | |
2316 | del_timer(&phba->fcf.redisc_wait); | |
2317 | } | |
2318 | ||
2319 | /** | |
2320 | * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer | |
2321 | * @phba: pointer to lpfc hba data structure. | |
2322 | * | |
2323 | * This routine stops the SLI4 FCF rediscover wait timer if it's on. It | |
2324 | * checks whether the FCF rediscovery wait timer is pending with the host | |
2325 | * lock held before proceeding with disabling the timer and clearing the | |
2326 | * wait timer pendig flag. | |
2327 | **/ | |
2328 | void | |
2329 | lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) | |
2330 | { | |
2331 | spin_lock_irq(&phba->hbalock); | |
2332 | if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { | |
2333 | /* FCF rediscovery timer already fired or stopped */ | |
2334 | spin_unlock_irq(&phba->hbalock); | |
2335 | return; | |
2336 | } | |
2337 | __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); | |
2338 | /* Clear failover in progress flags */ | |
2339 | phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); | |
2340 | spin_unlock_irq(&phba->hbalock); | |
2341 | } | |
2342 | ||
2343 | /** | |
2344 | * lpfc_stop_hba_timers - Stop all the timers associated with an HBA | |
2345 | * @phba: pointer to lpfc hba data structure. | |
2346 | * | |
2347 | * This routine stops all the timers associated with a HBA. This function is | |
2348 | * invoked before either putting a HBA offline or unloading the driver. | |
2349 | **/ | |
2350 | void | |
2351 | lpfc_stop_hba_timers(struct lpfc_hba *phba) | |
2352 | { | |
2353 | lpfc_stop_vport_timers(phba->pport); | |
2354 | del_timer_sync(&phba->sli.mbox_tmo); | |
2355 | del_timer_sync(&phba->fabric_block_timer); | |
2356 | del_timer_sync(&phba->eratt_poll); | |
2357 | del_timer_sync(&phba->hb_tmofunc); | |
2358 | phba->hb_outstanding = 0; | |
2359 | ||
2360 | switch (phba->pci_dev_grp) { | |
2361 | case LPFC_PCI_DEV_LP: | |
2362 | /* Stop any LightPulse device specific driver timers */ | |
2363 | del_timer_sync(&phba->fcp_poll_timer); | |
2364 | break; | |
2365 | case LPFC_PCI_DEV_OC: | |
2366 | /* Stop any OneConnect device sepcific driver timers */ | |
2367 | lpfc_sli4_stop_fcf_redisc_wait_timer(phba); | |
2368 | break; | |
2369 | default: | |
2370 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
2371 | "0297 Invalid device group (x%x)\n", | |
2372 | phba->pci_dev_grp); | |
2373 | break; | |
2374 | } | |
2375 | return; | |
2376 | } | |
2377 | ||
2378 | /** | |
2379 | * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked | |
2380 | * @phba: pointer to lpfc hba data structure. | |
2381 | * | |
2382 | * This routine marks a HBA's management interface as blocked. Once the HBA's | |
2383 | * management interface is marked as blocked, all the user space access to | |
2384 | * the HBA, whether they are from sysfs interface or libdfc interface will | |
2385 | * all be blocked. The HBA is set to block the management interface when the | |
2386 | * driver prepares the HBA interface for online or offline. | |
2387 | **/ | |
2388 | static void | |
2389 | lpfc_block_mgmt_io(struct lpfc_hba * phba) | |
2390 | { | |
2391 | unsigned long iflag; | |
2392 | uint8_t actcmd = MBX_HEARTBEAT; | |
2393 | unsigned long timeout; | |
2394 | ||
2395 | ||
2396 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2397 | phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; | |
2398 | if (phba->sli.mbox_active) | |
2399 | actcmd = phba->sli.mbox_active->u.mb.mbxCommand; | |
2400 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2401 | /* Determine how long we might wait for the active mailbox | |
2402 | * command to be gracefully completed by firmware. | |
2403 | */ | |
2404 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) + | |
2405 | jiffies; | |
2406 | /* Wait for the outstnading mailbox command to complete */ | |
2407 | while (phba->sli.mbox_active) { | |
2408 | /* Check active mailbox complete status every 2ms */ | |
2409 | msleep(2); | |
2410 | if (time_after(jiffies, timeout)) { | |
2411 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2412 | "2813 Mgmt IO is Blocked %x " | |
2413 | "- mbox cmd %x still active\n", | |
2414 | phba->sli.sli_flag, actcmd); | |
2415 | break; | |
2416 | } | |
2417 | } | |
2418 | } | |
2419 | ||
2420 | /** | |
2421 | * lpfc_online - Initialize and bring a HBA online | |
2422 | * @phba: pointer to lpfc hba data structure. | |
2423 | * | |
2424 | * This routine initializes the HBA and brings a HBA online. During this | |
2425 | * process, the management interface is blocked to prevent user space access | |
2426 | * to the HBA interfering with the driver initialization. | |
2427 | * | |
2428 | * Return codes | |
2429 | * 0 - successful | |
2430 | * 1 - failed | |
2431 | **/ | |
2432 | int | |
2433 | lpfc_online(struct lpfc_hba *phba) | |
2434 | { | |
2435 | struct lpfc_vport *vport; | |
2436 | struct lpfc_vport **vports; | |
2437 | int i; | |
2438 | ||
2439 | if (!phba) | |
2440 | return 0; | |
2441 | vport = phba->pport; | |
2442 | ||
2443 | if (!(vport->fc_flag & FC_OFFLINE_MODE)) | |
2444 | return 0; | |
2445 | ||
2446 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
2447 | "0458 Bring Adapter online\n"); | |
2448 | ||
2449 | lpfc_block_mgmt_io(phba); | |
2450 | ||
2451 | if (!lpfc_sli_queue_setup(phba)) { | |
2452 | lpfc_unblock_mgmt_io(phba); | |
2453 | return 1; | |
2454 | } | |
2455 | ||
2456 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
2457 | if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ | |
2458 | lpfc_unblock_mgmt_io(phba); | |
2459 | return 1; | |
2460 | } | |
2461 | } else { | |
2462 | if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ | |
2463 | lpfc_unblock_mgmt_io(phba); | |
2464 | return 1; | |
2465 | } | |
2466 | } | |
2467 | ||
2468 | vports = lpfc_create_vport_work_array(phba); | |
2469 | if (vports != NULL) | |
2470 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
2471 | struct Scsi_Host *shost; | |
2472 | shost = lpfc_shost_from_vport(vports[i]); | |
2473 | spin_lock_irq(shost->host_lock); | |
2474 | vports[i]->fc_flag &= ~FC_OFFLINE_MODE; | |
2475 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) | |
2476 | vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
2477 | if (phba->sli_rev == LPFC_SLI_REV4) | |
2478 | vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; | |
2479 | spin_unlock_irq(shost->host_lock); | |
2480 | } | |
2481 | lpfc_destroy_vport_work_array(phba, vports); | |
2482 | ||
2483 | lpfc_unblock_mgmt_io(phba); | |
2484 | return 0; | |
2485 | } | |
2486 | ||
2487 | /** | |
2488 | * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked | |
2489 | * @phba: pointer to lpfc hba data structure. | |
2490 | * | |
2491 | * This routine marks a HBA's management interface as not blocked. Once the | |
2492 | * HBA's management interface is marked as not blocked, all the user space | |
2493 | * access to the HBA, whether they are from sysfs interface or libdfc | |
2494 | * interface will be allowed. The HBA is set to block the management interface | |
2495 | * when the driver prepares the HBA interface for online or offline and then | |
2496 | * set to unblock the management interface afterwards. | |
2497 | **/ | |
2498 | void | |
2499 | lpfc_unblock_mgmt_io(struct lpfc_hba * phba) | |
2500 | { | |
2501 | unsigned long iflag; | |
2502 | ||
2503 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2504 | phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; | |
2505 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2506 | } | |
2507 | ||
2508 | /** | |
2509 | * lpfc_offline_prep - Prepare a HBA to be brought offline | |
2510 | * @phba: pointer to lpfc hba data structure. | |
2511 | * | |
2512 | * This routine is invoked to prepare a HBA to be brought offline. It performs | |
2513 | * unregistration login to all the nodes on all vports and flushes the mailbox | |
2514 | * queue to make it ready to be brought offline. | |
2515 | **/ | |
2516 | void | |
2517 | lpfc_offline_prep(struct lpfc_hba * phba) | |
2518 | { | |
2519 | struct lpfc_vport *vport = phba->pport; | |
2520 | struct lpfc_nodelist *ndlp, *next_ndlp; | |
2521 | struct lpfc_vport **vports; | |
2522 | struct Scsi_Host *shost; | |
2523 | int i; | |
2524 | ||
2525 | if (vport->fc_flag & FC_OFFLINE_MODE) | |
2526 | return; | |
2527 | ||
2528 | lpfc_block_mgmt_io(phba); | |
2529 | ||
2530 | lpfc_linkdown(phba); | |
2531 | ||
2532 | /* Issue an unreg_login to all nodes on all vports */ | |
2533 | vports = lpfc_create_vport_work_array(phba); | |
2534 | if (vports != NULL) { | |
2535 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
2536 | if (vports[i]->load_flag & FC_UNLOADING) | |
2537 | continue; | |
2538 | shost = lpfc_shost_from_vport(vports[i]); | |
2539 | spin_lock_irq(shost->host_lock); | |
2540 | vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; | |
2541 | vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
2542 | vports[i]->fc_flag &= ~FC_VFI_REGISTERED; | |
2543 | spin_unlock_irq(shost->host_lock); | |
2544 | ||
2545 | shost = lpfc_shost_from_vport(vports[i]); | |
2546 | list_for_each_entry_safe(ndlp, next_ndlp, | |
2547 | &vports[i]->fc_nodes, | |
2548 | nlp_listp) { | |
2549 | if (!NLP_CHK_NODE_ACT(ndlp)) | |
2550 | continue; | |
2551 | if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) | |
2552 | continue; | |
2553 | if (ndlp->nlp_type & NLP_FABRIC) { | |
2554 | lpfc_disc_state_machine(vports[i], ndlp, | |
2555 | NULL, NLP_EVT_DEVICE_RECOVERY); | |
2556 | lpfc_disc_state_machine(vports[i], ndlp, | |
2557 | NULL, NLP_EVT_DEVICE_RM); | |
2558 | } | |
2559 | spin_lock_irq(shost->host_lock); | |
2560 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; | |
2561 | spin_unlock_irq(shost->host_lock); | |
2562 | lpfc_unreg_rpi(vports[i], ndlp); | |
2563 | } | |
2564 | } | |
2565 | } | |
2566 | lpfc_destroy_vport_work_array(phba, vports); | |
2567 | ||
2568 | lpfc_sli_mbox_sys_shutdown(phba); | |
2569 | } | |
2570 | ||
2571 | /** | |
2572 | * lpfc_offline - Bring a HBA offline | |
2573 | * @phba: pointer to lpfc hba data structure. | |
2574 | * | |
2575 | * This routine actually brings a HBA offline. It stops all the timers | |
2576 | * associated with the HBA, brings down the SLI layer, and eventually | |
2577 | * marks the HBA as in offline state for the upper layer protocol. | |
2578 | **/ | |
2579 | void | |
2580 | lpfc_offline(struct lpfc_hba *phba) | |
2581 | { | |
2582 | struct Scsi_Host *shost; | |
2583 | struct lpfc_vport **vports; | |
2584 | int i; | |
2585 | ||
2586 | if (phba->pport->fc_flag & FC_OFFLINE_MODE) | |
2587 | return; | |
2588 | ||
2589 | /* stop port and all timers associated with this hba */ | |
2590 | lpfc_stop_port(phba); | |
2591 | vports = lpfc_create_vport_work_array(phba); | |
2592 | if (vports != NULL) | |
2593 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) | |
2594 | lpfc_stop_vport_timers(vports[i]); | |
2595 | lpfc_destroy_vport_work_array(phba, vports); | |
2596 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
2597 | "0460 Bring Adapter offline\n"); | |
2598 | /* Bring down the SLI Layer and cleanup. The HBA is offline | |
2599 | now. */ | |
2600 | lpfc_sli_hba_down(phba); | |
2601 | spin_lock_irq(&phba->hbalock); | |
2602 | phba->work_ha = 0; | |
2603 | spin_unlock_irq(&phba->hbalock); | |
2604 | vports = lpfc_create_vport_work_array(phba); | |
2605 | if (vports != NULL) | |
2606 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { | |
2607 | shost = lpfc_shost_from_vport(vports[i]); | |
2608 | spin_lock_irq(shost->host_lock); | |
2609 | vports[i]->work_port_events = 0; | |
2610 | vports[i]->fc_flag |= FC_OFFLINE_MODE; | |
2611 | spin_unlock_irq(shost->host_lock); | |
2612 | } | |
2613 | lpfc_destroy_vport_work_array(phba, vports); | |
2614 | } | |
2615 | ||
2616 | /** | |
2617 | * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists | |
2618 | * @phba: pointer to lpfc hba data structure. | |
2619 | * | |
2620 | * This routine is to free all the SCSI buffers and IOCBs from the driver | |
2621 | * list back to kernel. It is called from lpfc_pci_remove_one to free | |
2622 | * the internal resources before the device is removed from the system. | |
2623 | * | |
2624 | * Return codes | |
2625 | * 0 - successful (for now, it always returns 0) | |
2626 | **/ | |
2627 | static int | |
2628 | lpfc_scsi_free(struct lpfc_hba *phba) | |
2629 | { | |
2630 | struct lpfc_scsi_buf *sb, *sb_next; | |
2631 | struct lpfc_iocbq *io, *io_next; | |
2632 | ||
2633 | spin_lock_irq(&phba->hbalock); | |
2634 | /* Release all the lpfc_scsi_bufs maintained by this host. */ | |
2635 | spin_lock(&phba->scsi_buf_list_lock); | |
2636 | list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { | |
2637 | list_del(&sb->list); | |
2638 | pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, | |
2639 | sb->dma_handle); | |
2640 | kfree(sb); | |
2641 | phba->total_scsi_bufs--; | |
2642 | } | |
2643 | spin_unlock(&phba->scsi_buf_list_lock); | |
2644 | ||
2645 | /* Release all the lpfc_iocbq entries maintained by this host. */ | |
2646 | list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { | |
2647 | list_del(&io->list); | |
2648 | kfree(io); | |
2649 | phba->total_iocbq_bufs--; | |
2650 | } | |
2651 | spin_unlock_irq(&phba->hbalock); | |
2652 | return 0; | |
2653 | } | |
2654 | ||
2655 | /** | |
2656 | * lpfc_create_port - Create an FC port | |
2657 | * @phba: pointer to lpfc hba data structure. | |
2658 | * @instance: a unique integer ID to this FC port. | |
2659 | * @dev: pointer to the device data structure. | |
2660 | * | |
2661 | * This routine creates a FC port for the upper layer protocol. The FC port | |
2662 | * can be created on top of either a physical port or a virtual port provided | |
2663 | * by the HBA. This routine also allocates a SCSI host data structure (shost) | |
2664 | * and associates the FC port created before adding the shost into the SCSI | |
2665 | * layer. | |
2666 | * | |
2667 | * Return codes | |
2668 | * @vport - pointer to the virtual N_Port data structure. | |
2669 | * NULL - port create failed. | |
2670 | **/ | |
2671 | struct lpfc_vport * | |
2672 | lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) | |
2673 | { | |
2674 | struct lpfc_vport *vport; | |
2675 | struct Scsi_Host *shost; | |
2676 | int error = 0; | |
2677 | ||
2678 | if (dev != &phba->pcidev->dev) | |
2679 | shost = scsi_host_alloc(&lpfc_vport_template, | |
2680 | sizeof(struct lpfc_vport)); | |
2681 | else | |
2682 | shost = scsi_host_alloc(&lpfc_template, | |
2683 | sizeof(struct lpfc_vport)); | |
2684 | if (!shost) | |
2685 | goto out; | |
2686 | ||
2687 | vport = (struct lpfc_vport *) shost->hostdata; | |
2688 | vport->phba = phba; | |
2689 | vport->load_flag |= FC_LOADING; | |
2690 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
2691 | vport->fc_rscn_flush = 0; | |
2692 | ||
2693 | lpfc_get_vport_cfgparam(vport); | |
2694 | shost->unique_id = instance; | |
2695 | shost->max_id = LPFC_MAX_TARGET; | |
2696 | shost->max_lun = vport->cfg_max_luns; | |
2697 | shost->this_id = -1; | |
2698 | shost->max_cmd_len = 16; | |
2699 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
2700 | shost->dma_boundary = | |
2701 | phba->sli4_hba.pc_sli4_params.sge_supp_len-1; | |
2702 | shost->sg_tablesize = phba->cfg_sg_seg_cnt; | |
2703 | } | |
2704 | ||
2705 | /* | |
2706 | * Set initial can_queue value since 0 is no longer supported and | |
2707 | * scsi_add_host will fail. This will be adjusted later based on the | |
2708 | * max xri value determined in hba setup. | |
2709 | */ | |
2710 | shost->can_queue = phba->cfg_hba_queue_depth - 10; | |
2711 | if (dev != &phba->pcidev->dev) { | |
2712 | shost->transportt = lpfc_vport_transport_template; | |
2713 | vport->port_type = LPFC_NPIV_PORT; | |
2714 | } else { | |
2715 | shost->transportt = lpfc_transport_template; | |
2716 | vport->port_type = LPFC_PHYSICAL_PORT; | |
2717 | } | |
2718 | ||
2719 | /* Initialize all internally managed lists. */ | |
2720 | INIT_LIST_HEAD(&vport->fc_nodes); | |
2721 | INIT_LIST_HEAD(&vport->rcv_buffer_list); | |
2722 | spin_lock_init(&vport->work_port_lock); | |
2723 | ||
2724 | init_timer(&vport->fc_disctmo); | |
2725 | vport->fc_disctmo.function = lpfc_disc_timeout; | |
2726 | vport->fc_disctmo.data = (unsigned long)vport; | |
2727 | ||
2728 | init_timer(&vport->fc_fdmitmo); | |
2729 | vport->fc_fdmitmo.function = lpfc_fdmi_tmo; | |
2730 | vport->fc_fdmitmo.data = (unsigned long)vport; | |
2731 | ||
2732 | init_timer(&vport->els_tmofunc); | |
2733 | vport->els_tmofunc.function = lpfc_els_timeout; | |
2734 | vport->els_tmofunc.data = (unsigned long)vport; | |
2735 | error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); | |
2736 | if (error) | |
2737 | goto out_put_shost; | |
2738 | ||
2739 | spin_lock_irq(&phba->hbalock); | |
2740 | list_add_tail(&vport->listentry, &phba->port_list); | |
2741 | spin_unlock_irq(&phba->hbalock); | |
2742 | return vport; | |
2743 | ||
2744 | out_put_shost: | |
2745 | scsi_host_put(shost); | |
2746 | out: | |
2747 | return NULL; | |
2748 | } | |
2749 | ||
2750 | /** | |
2751 | * destroy_port - destroy an FC port | |
2752 | * @vport: pointer to an lpfc virtual N_Port data structure. | |
2753 | * | |
2754 | * This routine destroys a FC port from the upper layer protocol. All the | |
2755 | * resources associated with the port are released. | |
2756 | **/ | |
2757 | void | |
2758 | destroy_port(struct lpfc_vport *vport) | |
2759 | { | |
2760 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2761 | struct lpfc_hba *phba = vport->phba; | |
2762 | ||
2763 | lpfc_debugfs_terminate(vport); | |
2764 | fc_remove_host(shost); | |
2765 | scsi_remove_host(shost); | |
2766 | ||
2767 | spin_lock_irq(&phba->hbalock); | |
2768 | list_del_init(&vport->listentry); | |
2769 | spin_unlock_irq(&phba->hbalock); | |
2770 | ||
2771 | lpfc_cleanup(vport); | |
2772 | return; | |
2773 | } | |
2774 | ||
2775 | /** | |
2776 | * lpfc_get_instance - Get a unique integer ID | |
2777 | * | |
2778 | * This routine allocates a unique integer ID from lpfc_hba_index pool. It | |
2779 | * uses the kernel idr facility to perform the task. | |
2780 | * | |
2781 | * Return codes: | |
2782 | * instance - a unique integer ID allocated as the new instance. | |
2783 | * -1 - lpfc get instance failed. | |
2784 | **/ | |
2785 | int | |
2786 | lpfc_get_instance(void) | |
2787 | { | |
2788 | int instance = 0; | |
2789 | ||
2790 | /* Assign an unused number */ | |
2791 | if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) | |
2792 | return -1; | |
2793 | if (idr_get_new(&lpfc_hba_index, NULL, &instance)) | |
2794 | return -1; | |
2795 | return instance; | |
2796 | } | |
2797 | ||
2798 | /** | |
2799 | * lpfc_scan_finished - method for SCSI layer to detect whether scan is done | |
2800 | * @shost: pointer to SCSI host data structure. | |
2801 | * @time: elapsed time of the scan in jiffies. | |
2802 | * | |
2803 | * This routine is called by the SCSI layer with a SCSI host to determine | |
2804 | * whether the scan host is finished. | |
2805 | * | |
2806 | * Note: there is no scan_start function as adapter initialization will have | |
2807 | * asynchronously kicked off the link initialization. | |
2808 | * | |
2809 | * Return codes | |
2810 | * 0 - SCSI host scan is not over yet. | |
2811 | * 1 - SCSI host scan is over. | |
2812 | **/ | |
2813 | int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) | |
2814 | { | |
2815 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
2816 | struct lpfc_hba *phba = vport->phba; | |
2817 | int stat = 0; | |
2818 | ||
2819 | spin_lock_irq(shost->host_lock); | |
2820 | ||
2821 | if (vport->load_flag & FC_UNLOADING) { | |
2822 | stat = 1; | |
2823 | goto finished; | |
2824 | } | |
2825 | if (time >= 30 * HZ) { | |
2826 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
2827 | "0461 Scanning longer than 30 " | |
2828 | "seconds. Continuing initialization\n"); | |
2829 | stat = 1; | |
2830 | goto finished; | |
2831 | } | |
2832 | if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { | |
2833 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
2834 | "0465 Link down longer than 15 " | |
2835 | "seconds. Continuing initialization\n"); | |
2836 | stat = 1; | |
2837 | goto finished; | |
2838 | } | |
2839 | ||
2840 | if (vport->port_state != LPFC_VPORT_READY) | |
2841 | goto finished; | |
2842 | if (vport->num_disc_nodes || vport->fc_prli_sent) | |
2843 | goto finished; | |
2844 | if (vport->fc_map_cnt == 0 && time < 2 * HZ) | |
2845 | goto finished; | |
2846 | if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) | |
2847 | goto finished; | |
2848 | ||
2849 | stat = 1; | |
2850 | ||
2851 | finished: | |
2852 | spin_unlock_irq(shost->host_lock); | |
2853 | return stat; | |
2854 | } | |
2855 | ||
2856 | /** | |
2857 | * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port | |
2858 | * @shost: pointer to SCSI host data structure. | |
2859 | * | |
2860 | * This routine initializes a given SCSI host attributes on a FC port. The | |
2861 | * SCSI host can be either on top of a physical port or a virtual port. | |
2862 | **/ | |
2863 | void lpfc_host_attrib_init(struct Scsi_Host *shost) | |
2864 | { | |
2865 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
2866 | struct lpfc_hba *phba = vport->phba; | |
2867 | /* | |
2868 | * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). | |
2869 | */ | |
2870 | ||
2871 | fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); | |
2872 | fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); | |
2873 | fc_host_supported_classes(shost) = FC_COS_CLASS3; | |
2874 | ||
2875 | memset(fc_host_supported_fc4s(shost), 0, | |
2876 | sizeof(fc_host_supported_fc4s(shost))); | |
2877 | fc_host_supported_fc4s(shost)[2] = 1; | |
2878 | fc_host_supported_fc4s(shost)[7] = 1; | |
2879 | ||
2880 | lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), | |
2881 | sizeof fc_host_symbolic_name(shost)); | |
2882 | ||
2883 | fc_host_supported_speeds(shost) = 0; | |
2884 | if (phba->lmt & LMT_10Gb) | |
2885 | fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; | |
2886 | if (phba->lmt & LMT_8Gb) | |
2887 | fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; | |
2888 | if (phba->lmt & LMT_4Gb) | |
2889 | fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; | |
2890 | if (phba->lmt & LMT_2Gb) | |
2891 | fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; | |
2892 | if (phba->lmt & LMT_1Gb) | |
2893 | fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; | |
2894 | ||
2895 | fc_host_maxframe_size(shost) = | |
2896 | (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | | |
2897 | (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; | |
2898 | ||
2899 | fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; | |
2900 | ||
2901 | /* This value is also unchanging */ | |
2902 | memset(fc_host_active_fc4s(shost), 0, | |
2903 | sizeof(fc_host_active_fc4s(shost))); | |
2904 | fc_host_active_fc4s(shost)[2] = 1; | |
2905 | fc_host_active_fc4s(shost)[7] = 1; | |
2906 | ||
2907 | fc_host_max_npiv_vports(shost) = phba->max_vpi; | |
2908 | spin_lock_irq(shost->host_lock); | |
2909 | vport->load_flag &= ~FC_LOADING; | |
2910 | spin_unlock_irq(shost->host_lock); | |
2911 | } | |
2912 | ||
2913 | /** | |
2914 | * lpfc_stop_port_s3 - Stop SLI3 device port | |
2915 | * @phba: pointer to lpfc hba data structure. | |
2916 | * | |
2917 | * This routine is invoked to stop an SLI3 device port, it stops the device | |
2918 | * from generating interrupts and stops the device driver's timers for the | |
2919 | * device. | |
2920 | **/ | |
2921 | static void | |
2922 | lpfc_stop_port_s3(struct lpfc_hba *phba) | |
2923 | { | |
2924 | /* Clear all interrupt enable conditions */ | |
2925 | writel(0, phba->HCregaddr); | |
2926 | readl(phba->HCregaddr); /* flush */ | |
2927 | /* Clear all pending interrupts */ | |
2928 | writel(0xffffffff, phba->HAregaddr); | |
2929 | readl(phba->HAregaddr); /* flush */ | |
2930 | ||
2931 | /* Reset some HBA SLI setup states */ | |
2932 | lpfc_stop_hba_timers(phba); | |
2933 | phba->pport->work_port_events = 0; | |
2934 | } | |
2935 | ||
2936 | /** | |
2937 | * lpfc_stop_port_s4 - Stop SLI4 device port | |
2938 | * @phba: pointer to lpfc hba data structure. | |
2939 | * | |
2940 | * This routine is invoked to stop an SLI4 device port, it stops the device | |
2941 | * from generating interrupts and stops the device driver's timers for the | |
2942 | * device. | |
2943 | **/ | |
2944 | static void | |
2945 | lpfc_stop_port_s4(struct lpfc_hba *phba) | |
2946 | { | |
2947 | /* Reset some HBA SLI4 setup states */ | |
2948 | lpfc_stop_hba_timers(phba); | |
2949 | phba->pport->work_port_events = 0; | |
2950 | phba->sli4_hba.intr_enable = 0; | |
2951 | } | |
2952 | ||
2953 | /** | |
2954 | * lpfc_stop_port - Wrapper function for stopping hba port | |
2955 | * @phba: Pointer to HBA context object. | |
2956 | * | |
2957 | * This routine wraps the actual SLI3 or SLI4 hba stop port routine from | |
2958 | * the API jump table function pointer from the lpfc_hba struct. | |
2959 | **/ | |
2960 | void | |
2961 | lpfc_stop_port(struct lpfc_hba *phba) | |
2962 | { | |
2963 | phba->lpfc_stop_port(phba); | |
2964 | } | |
2965 | ||
2966 | /** | |
2967 | * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer | |
2968 | * @phba: Pointer to hba for which this call is being executed. | |
2969 | * | |
2970 | * This routine starts the timer waiting for the FCF rediscovery to complete. | |
2971 | **/ | |
2972 | void | |
2973 | lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) | |
2974 | { | |
2975 | unsigned long fcf_redisc_wait_tmo = | |
2976 | (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); | |
2977 | /* Start fcf rediscovery wait period timer */ | |
2978 | mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); | |
2979 | spin_lock_irq(&phba->hbalock); | |
2980 | /* Allow action to new fcf asynchronous event */ | |
2981 | phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); | |
2982 | /* Mark the FCF rediscovery pending state */ | |
2983 | phba->fcf.fcf_flag |= FCF_REDISC_PEND; | |
2984 | spin_unlock_irq(&phba->hbalock); | |
2985 | } | |
2986 | ||
2987 | /** | |
2988 | * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout | |
2989 | * @ptr: Map to lpfc_hba data structure pointer. | |
2990 | * | |
2991 | * This routine is invoked when waiting for FCF table rediscover has been | |
2992 | * timed out. If new FCF record(s) has (have) been discovered during the | |
2993 | * wait period, a new FCF event shall be added to the FCOE async event | |
2994 | * list, and then worker thread shall be waked up for processing from the | |
2995 | * worker thread context. | |
2996 | **/ | |
2997 | void | |
2998 | lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) | |
2999 | { | |
3000 | struct lpfc_hba *phba = (struct lpfc_hba *)ptr; | |
3001 | ||
3002 | /* Don't send FCF rediscovery event if timer cancelled */ | |
3003 | spin_lock_irq(&phba->hbalock); | |
3004 | if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { | |
3005 | spin_unlock_irq(&phba->hbalock); | |
3006 | return; | |
3007 | } | |
3008 | /* Clear FCF rediscovery timer pending flag */ | |
3009 | phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; | |
3010 | /* FCF rediscovery event to worker thread */ | |
3011 | phba->fcf.fcf_flag |= FCF_REDISC_EVT; | |
3012 | spin_unlock_irq(&phba->hbalock); | |
3013 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP, | |
3014 | "2776 FCF rediscover quiescent timer expired\n"); | |
3015 | /* wake up worker thread */ | |
3016 | lpfc_worker_wake_up(phba); | |
3017 | } | |
3018 | ||
3019 | /** | |
3020 | * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code | |
3021 | * @phba: pointer to lpfc hba data structure. | |
3022 | * @acqe_link: pointer to the async link completion queue entry. | |
3023 | * | |
3024 | * This routine is to parse the SLI4 link-attention link fault code and | |
3025 | * translate it into the base driver's read link attention mailbox command | |
3026 | * status. | |
3027 | * | |
3028 | * Return: Link-attention status in terms of base driver's coding. | |
3029 | **/ | |
3030 | static uint16_t | |
3031 | lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, | |
3032 | struct lpfc_acqe_link *acqe_link) | |
3033 | { | |
3034 | uint16_t latt_fault; | |
3035 | ||
3036 | switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { | |
3037 | case LPFC_ASYNC_LINK_FAULT_NONE: | |
3038 | case LPFC_ASYNC_LINK_FAULT_LOCAL: | |
3039 | case LPFC_ASYNC_LINK_FAULT_REMOTE: | |
3040 | latt_fault = 0; | |
3041 | break; | |
3042 | default: | |
3043 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3044 | "0398 Invalid link fault code: x%x\n", | |
3045 | bf_get(lpfc_acqe_link_fault, acqe_link)); | |
3046 | latt_fault = MBXERR_ERROR; | |
3047 | break; | |
3048 | } | |
3049 | return latt_fault; | |
3050 | } | |
3051 | ||
3052 | /** | |
3053 | * lpfc_sli4_parse_latt_type - Parse sli4 link attention type | |
3054 | * @phba: pointer to lpfc hba data structure. | |
3055 | * @acqe_link: pointer to the async link completion queue entry. | |
3056 | * | |
3057 | * This routine is to parse the SLI4 link attention type and translate it | |
3058 | * into the base driver's link attention type coding. | |
3059 | * | |
3060 | * Return: Link attention type in terms of base driver's coding. | |
3061 | **/ | |
3062 | static uint8_t | |
3063 | lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, | |
3064 | struct lpfc_acqe_link *acqe_link) | |
3065 | { | |
3066 | uint8_t att_type; | |
3067 | ||
3068 | switch (bf_get(lpfc_acqe_link_status, acqe_link)) { | |
3069 | case LPFC_ASYNC_LINK_STATUS_DOWN: | |
3070 | case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: | |
3071 | att_type = LPFC_ATT_LINK_DOWN; | |
3072 | break; | |
3073 | case LPFC_ASYNC_LINK_STATUS_UP: | |
3074 | /* Ignore physical link up events - wait for logical link up */ | |
3075 | att_type = LPFC_ATT_RESERVED; | |
3076 | break; | |
3077 | case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: | |
3078 | att_type = LPFC_ATT_LINK_UP; | |
3079 | break; | |
3080 | default: | |
3081 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3082 | "0399 Invalid link attention type: x%x\n", | |
3083 | bf_get(lpfc_acqe_link_status, acqe_link)); | |
3084 | att_type = LPFC_ATT_RESERVED; | |
3085 | break; | |
3086 | } | |
3087 | return att_type; | |
3088 | } | |
3089 | ||
3090 | /** | |
3091 | * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed | |
3092 | * @phba: pointer to lpfc hba data structure. | |
3093 | * @acqe_link: pointer to the async link completion queue entry. | |
3094 | * | |
3095 | * This routine is to parse the SLI4 link-attention link speed and translate | |
3096 | * it into the base driver's link-attention link speed coding. | |
3097 | * | |
3098 | * Return: Link-attention link speed in terms of base driver's coding. | |
3099 | **/ | |
3100 | static uint8_t | |
3101 | lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, | |
3102 | struct lpfc_acqe_link *acqe_link) | |
3103 | { | |
3104 | uint8_t link_speed; | |
3105 | ||
3106 | switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { | |
3107 | case LPFC_ASYNC_LINK_SPEED_ZERO: | |
3108 | case LPFC_ASYNC_LINK_SPEED_10MBPS: | |
3109 | case LPFC_ASYNC_LINK_SPEED_100MBPS: | |
3110 | link_speed = LPFC_LINK_SPEED_UNKNOWN; | |
3111 | break; | |
3112 | case LPFC_ASYNC_LINK_SPEED_1GBPS: | |
3113 | link_speed = LPFC_LINK_SPEED_1GHZ; | |
3114 | break; | |
3115 | case LPFC_ASYNC_LINK_SPEED_10GBPS: | |
3116 | link_speed = LPFC_LINK_SPEED_10GHZ; | |
3117 | break; | |
3118 | default: | |
3119 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3120 | "0483 Invalid link-attention link speed: x%x\n", | |
3121 | bf_get(lpfc_acqe_link_speed, acqe_link)); | |
3122 | link_speed = LPFC_LINK_SPEED_UNKNOWN; | |
3123 | break; | |
3124 | } | |
3125 | return link_speed; | |
3126 | } | |
3127 | ||
3128 | /** | |
3129 | * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event | |
3130 | * @phba: pointer to lpfc hba data structure. | |
3131 | * @acqe_link: pointer to the async link completion queue entry. | |
3132 | * | |
3133 | * This routine is to handle the SLI4 asynchronous FCoE link event. | |
3134 | **/ | |
3135 | static void | |
3136 | lpfc_sli4_async_link_evt(struct lpfc_hba *phba, | |
3137 | struct lpfc_acqe_link *acqe_link) | |
3138 | { | |
3139 | struct lpfc_dmabuf *mp; | |
3140 | LPFC_MBOXQ_t *pmb; | |
3141 | MAILBOX_t *mb; | |
3142 | struct lpfc_mbx_read_top *la; | |
3143 | uint8_t att_type; | |
3144 | int rc; | |
3145 | ||
3146 | att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); | |
3147 | if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) | |
3148 | return; | |
3149 | phba->fcoe_eventtag = acqe_link->event_tag; | |
3150 | pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3151 | if (!pmb) { | |
3152 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3153 | "0395 The mboxq allocation failed\n"); | |
3154 | return; | |
3155 | } | |
3156 | mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
3157 | if (!mp) { | |
3158 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3159 | "0396 The lpfc_dmabuf allocation failed\n"); | |
3160 | goto out_free_pmb; | |
3161 | } | |
3162 | mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); | |
3163 | if (!mp->virt) { | |
3164 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3165 | "0397 The mbuf allocation failed\n"); | |
3166 | goto out_free_dmabuf; | |
3167 | } | |
3168 | ||
3169 | /* Cleanup any outstanding ELS commands */ | |
3170 | lpfc_els_flush_all_cmd(phba); | |
3171 | ||
3172 | /* Block ELS IOCBs until we have done process link event */ | |
3173 | phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; | |
3174 | ||
3175 | /* Update link event statistics */ | |
3176 | phba->sli.slistat.link_event++; | |
3177 | ||
3178 | /* Create lpfc_handle_latt mailbox command from link ACQE */ | |
3179 | lpfc_read_topology(phba, pmb, mp); | |
3180 | pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; | |
3181 | pmb->vport = phba->pport; | |
3182 | ||
3183 | /* Keep the link status for extra SLI4 state machine reference */ | |
3184 | phba->sli4_hba.link_state.speed = | |
3185 | bf_get(lpfc_acqe_link_speed, acqe_link); | |
3186 | phba->sli4_hba.link_state.duplex = | |
3187 | bf_get(lpfc_acqe_link_duplex, acqe_link); | |
3188 | phba->sli4_hba.link_state.status = | |
3189 | bf_get(lpfc_acqe_link_status, acqe_link); | |
3190 | phba->sli4_hba.link_state.type = | |
3191 | bf_get(lpfc_acqe_link_type, acqe_link); | |
3192 | phba->sli4_hba.link_state.number = | |
3193 | bf_get(lpfc_acqe_link_number, acqe_link); | |
3194 | phba->sli4_hba.link_state.fault = | |
3195 | bf_get(lpfc_acqe_link_fault, acqe_link); | |
3196 | phba->sli4_hba.link_state.logical_speed = | |
3197 | bf_get(lpfc_acqe_logical_link_speed, acqe_link); | |
3198 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3199 | "2900 Async FCoE Link event - Speed:%dGBit duplex:x%x " | |
3200 | "LA Type:x%x Port Type:%d Port Number:%d Logical " | |
3201 | "speed:%dMbps Fault:%d\n", | |
3202 | phba->sli4_hba.link_state.speed, | |
3203 | phba->sli4_hba.link_state.topology, | |
3204 | phba->sli4_hba.link_state.status, | |
3205 | phba->sli4_hba.link_state.type, | |
3206 | phba->sli4_hba.link_state.number, | |
3207 | phba->sli4_hba.link_state.logical_speed * 10, | |
3208 | phba->sli4_hba.link_state.fault); | |
3209 | /* | |
3210 | * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch | |
3211 | * topology info. Note: Optional for non FC-AL ports. | |
3212 | */ | |
3213 | if (!(phba->hba_flag & HBA_FCOE_MODE)) { | |
3214 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
3215 | if (rc == MBX_NOT_FINISHED) | |
3216 | goto out_free_dmabuf; | |
3217 | return; | |
3218 | } | |
3219 | /* | |
3220 | * For FCoE Mode: fill in all the topology information we need and call | |
3221 | * the READ_TOPOLOGY completion routine to continue without actually | |
3222 | * sending the READ_TOPOLOGY mailbox command to the port. | |
3223 | */ | |
3224 | /* Parse and translate status field */ | |
3225 | mb = &pmb->u.mb; | |
3226 | mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); | |
3227 | ||
3228 | /* Parse and translate link attention fields */ | |
3229 | la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; | |
3230 | la->eventTag = acqe_link->event_tag; | |
3231 | bf_set(lpfc_mbx_read_top_att_type, la, att_type); | |
3232 | bf_set(lpfc_mbx_read_top_link_spd, la, | |
3233 | lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); | |
3234 | ||
3235 | /* Fake the the following irrelvant fields */ | |
3236 | bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); | |
3237 | bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); | |
3238 | bf_set(lpfc_mbx_read_top_il, la, 0); | |
3239 | bf_set(lpfc_mbx_read_top_pb, la, 0); | |
3240 | bf_set(lpfc_mbx_read_top_fa, la, 0); | |
3241 | bf_set(lpfc_mbx_read_top_mm, la, 0); | |
3242 | ||
3243 | /* Invoke the lpfc_handle_latt mailbox command callback function */ | |
3244 | lpfc_mbx_cmpl_read_topology(phba, pmb); | |
3245 | ||
3246 | return; | |
3247 | ||
3248 | out_free_dmabuf: | |
3249 | kfree(mp); | |
3250 | out_free_pmb: | |
3251 | mempool_free(pmb, phba->mbox_mem_pool); | |
3252 | } | |
3253 | ||
3254 | /** | |
3255 | * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event | |
3256 | * @phba: pointer to lpfc hba data structure. | |
3257 | * @acqe_fc: pointer to the async fc completion queue entry. | |
3258 | * | |
3259 | * This routine is to handle the SLI4 asynchronous FC event. It will simply log | |
3260 | * that the event was received and then issue a read_topology mailbox command so | |
3261 | * that the rest of the driver will treat it the same as SLI3. | |
3262 | **/ | |
3263 | static void | |
3264 | lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) | |
3265 | { | |
3266 | struct lpfc_dmabuf *mp; | |
3267 | LPFC_MBOXQ_t *pmb; | |
3268 | int rc; | |
3269 | ||
3270 | if (bf_get(lpfc_trailer_type, acqe_fc) != | |
3271 | LPFC_FC_LA_EVENT_TYPE_FC_LINK) { | |
3272 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3273 | "2895 Non FC link Event detected.(%d)\n", | |
3274 | bf_get(lpfc_trailer_type, acqe_fc)); | |
3275 | return; | |
3276 | } | |
3277 | /* Keep the link status for extra SLI4 state machine reference */ | |
3278 | phba->sli4_hba.link_state.speed = | |
3279 | bf_get(lpfc_acqe_fc_la_speed, acqe_fc); | |
3280 | phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; | |
3281 | phba->sli4_hba.link_state.topology = | |
3282 | bf_get(lpfc_acqe_fc_la_topology, acqe_fc); | |
3283 | phba->sli4_hba.link_state.status = | |
3284 | bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); | |
3285 | phba->sli4_hba.link_state.type = | |
3286 | bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); | |
3287 | phba->sli4_hba.link_state.number = | |
3288 | bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); | |
3289 | phba->sli4_hba.link_state.fault = | |
3290 | bf_get(lpfc_acqe_link_fault, acqe_fc); | |
3291 | phba->sli4_hba.link_state.logical_speed = | |
3292 | bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc); | |
3293 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3294 | "2896 Async FC event - Speed:%dGBaud Topology:x%x " | |
3295 | "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" | |
3296 | "%dMbps Fault:%d\n", | |
3297 | phba->sli4_hba.link_state.speed, | |
3298 | phba->sli4_hba.link_state.topology, | |
3299 | phba->sli4_hba.link_state.status, | |
3300 | phba->sli4_hba.link_state.type, | |
3301 | phba->sli4_hba.link_state.number, | |
3302 | phba->sli4_hba.link_state.logical_speed * 10, | |
3303 | phba->sli4_hba.link_state.fault); | |
3304 | pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3305 | if (!pmb) { | |
3306 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3307 | "2897 The mboxq allocation failed\n"); | |
3308 | return; | |
3309 | } | |
3310 | mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
3311 | if (!mp) { | |
3312 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3313 | "2898 The lpfc_dmabuf allocation failed\n"); | |
3314 | goto out_free_pmb; | |
3315 | } | |
3316 | mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); | |
3317 | if (!mp->virt) { | |
3318 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3319 | "2899 The mbuf allocation failed\n"); | |
3320 | goto out_free_dmabuf; | |
3321 | } | |
3322 | ||
3323 | /* Cleanup any outstanding ELS commands */ | |
3324 | lpfc_els_flush_all_cmd(phba); | |
3325 | ||
3326 | /* Block ELS IOCBs until we have done process link event */ | |
3327 | phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; | |
3328 | ||
3329 | /* Update link event statistics */ | |
3330 | phba->sli.slistat.link_event++; | |
3331 | ||
3332 | /* Create lpfc_handle_latt mailbox command from link ACQE */ | |
3333 | lpfc_read_topology(phba, pmb, mp); | |
3334 | pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; | |
3335 | pmb->vport = phba->pport; | |
3336 | ||
3337 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
3338 | if (rc == MBX_NOT_FINISHED) | |
3339 | goto out_free_dmabuf; | |
3340 | return; | |
3341 | ||
3342 | out_free_dmabuf: | |
3343 | kfree(mp); | |
3344 | out_free_pmb: | |
3345 | mempool_free(pmb, phba->mbox_mem_pool); | |
3346 | } | |
3347 | ||
3348 | /** | |
3349 | * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event | |
3350 | * @phba: pointer to lpfc hba data structure. | |
3351 | * @acqe_fc: pointer to the async SLI completion queue entry. | |
3352 | * | |
3353 | * This routine is to handle the SLI4 asynchronous SLI events. | |
3354 | **/ | |
3355 | static void | |
3356 | lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) | |
3357 | { | |
3358 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3359 | "2901 Async SLI event - Event Data1:x%08x Event Data2:" | |
3360 | "x%08x SLI Event Type:%d", | |
3361 | acqe_sli->event_data1, acqe_sli->event_data2, | |
3362 | bf_get(lpfc_trailer_type, acqe_sli)); | |
3363 | return; | |
3364 | } | |
3365 | ||
3366 | /** | |
3367 | * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport | |
3368 | * @vport: pointer to vport data structure. | |
3369 | * | |
3370 | * This routine is to perform Clear Virtual Link (CVL) on a vport in | |
3371 | * response to a CVL event. | |
3372 | * | |
3373 | * Return the pointer to the ndlp with the vport if successful, otherwise | |
3374 | * return NULL. | |
3375 | **/ | |
3376 | static struct lpfc_nodelist * | |
3377 | lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) | |
3378 | { | |
3379 | struct lpfc_nodelist *ndlp; | |
3380 | struct Scsi_Host *shost; | |
3381 | struct lpfc_hba *phba; | |
3382 | ||
3383 | if (!vport) | |
3384 | return NULL; | |
3385 | phba = vport->phba; | |
3386 | if (!phba) | |
3387 | return NULL; | |
3388 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
3389 | if (!ndlp) { | |
3390 | /* Cannot find existing Fabric ndlp, so allocate a new one */ | |
3391 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
3392 | if (!ndlp) | |
3393 | return 0; | |
3394 | lpfc_nlp_init(vport, ndlp, Fabric_DID); | |
3395 | /* Set the node type */ | |
3396 | ndlp->nlp_type |= NLP_FABRIC; | |
3397 | /* Put ndlp onto node list */ | |
3398 | lpfc_enqueue_node(vport, ndlp); | |
3399 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
3400 | /* re-setup ndlp without removing from node list */ | |
3401 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
3402 | if (!ndlp) | |
3403 | return 0; | |
3404 | } | |
3405 | if ((phba->pport->port_state < LPFC_FLOGI) && | |
3406 | (phba->pport->port_state != LPFC_VPORT_FAILED)) | |
3407 | return NULL; | |
3408 | /* If virtual link is not yet instantiated ignore CVL */ | |
3409 | if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) | |
3410 | && (vport->port_state != LPFC_VPORT_FAILED)) | |
3411 | return NULL; | |
3412 | shost = lpfc_shost_from_vport(vport); | |
3413 | if (!shost) | |
3414 | return NULL; | |
3415 | lpfc_linkdown_port(vport); | |
3416 | lpfc_cleanup_pending_mbox(vport); | |
3417 | spin_lock_irq(shost->host_lock); | |
3418 | vport->fc_flag |= FC_VPORT_CVL_RCVD; | |
3419 | spin_unlock_irq(shost->host_lock); | |
3420 | ||
3421 | return ndlp; | |
3422 | } | |
3423 | ||
3424 | /** | |
3425 | * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports | |
3426 | * @vport: pointer to lpfc hba data structure. | |
3427 | * | |
3428 | * This routine is to perform Clear Virtual Link (CVL) on all vports in | |
3429 | * response to a FCF dead event. | |
3430 | **/ | |
3431 | static void | |
3432 | lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) | |
3433 | { | |
3434 | struct lpfc_vport **vports; | |
3435 | int i; | |
3436 | ||
3437 | vports = lpfc_create_vport_work_array(phba); | |
3438 | if (vports) | |
3439 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) | |
3440 | lpfc_sli4_perform_vport_cvl(vports[i]); | |
3441 | lpfc_destroy_vport_work_array(phba, vports); | |
3442 | } | |
3443 | ||
3444 | /** | |
3445 | * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event | |
3446 | * @phba: pointer to lpfc hba data structure. | |
3447 | * @acqe_link: pointer to the async fcoe completion queue entry. | |
3448 | * | |
3449 | * This routine is to handle the SLI4 asynchronous fcoe event. | |
3450 | **/ | |
3451 | static void | |
3452 | lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, | |
3453 | struct lpfc_acqe_fip *acqe_fip) | |
3454 | { | |
3455 | uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); | |
3456 | int rc; | |
3457 | struct lpfc_vport *vport; | |
3458 | struct lpfc_nodelist *ndlp; | |
3459 | struct Scsi_Host *shost; | |
3460 | int active_vlink_present; | |
3461 | struct lpfc_vport **vports; | |
3462 | int i; | |
3463 | ||
3464 | phba->fc_eventTag = acqe_fip->event_tag; | |
3465 | phba->fcoe_eventtag = acqe_fip->event_tag; | |
3466 | switch (event_type) { | |
3467 | case LPFC_FIP_EVENT_TYPE_NEW_FCF: | |
3468 | case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: | |
3469 | if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) | |
3470 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | | |
3471 | LOG_DISCOVERY, | |
3472 | "2546 New FCF event, evt_tag:x%x, " | |
3473 | "index:x%x\n", | |
3474 | acqe_fip->event_tag, | |
3475 | acqe_fip->index); | |
3476 | else | |
3477 | lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | | |
3478 | LOG_DISCOVERY, | |
3479 | "2788 FCF param modified event, " | |
3480 | "evt_tag:x%x, index:x%x\n", | |
3481 | acqe_fip->event_tag, | |
3482 | acqe_fip->index); | |
3483 | if (phba->fcf.fcf_flag & FCF_DISCOVERY) { | |
3484 | /* | |
3485 | * During period of FCF discovery, read the FCF | |
3486 | * table record indexed by the event to update | |
3487 | * FCF roundrobin failover eligible FCF bmask. | |
3488 | */ | |
3489 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP | | |
3490 | LOG_DISCOVERY, | |
3491 | "2779 Read FCF (x%x) for updating " | |
3492 | "roundrobin FCF failover bmask\n", | |
3493 | acqe_fip->index); | |
3494 | rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); | |
3495 | } | |
3496 | ||
3497 | /* If the FCF discovery is in progress, do nothing. */ | |
3498 | spin_lock_irq(&phba->hbalock); | |
3499 | if (phba->hba_flag & FCF_TS_INPROG) { | |
3500 | spin_unlock_irq(&phba->hbalock); | |
3501 | break; | |
3502 | } | |
3503 | /* If fast FCF failover rescan event is pending, do nothing */ | |
3504 | if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { | |
3505 | spin_unlock_irq(&phba->hbalock); | |
3506 | break; | |
3507 | } | |
3508 | ||
3509 | /* If the FCF has been in discovered state, do nothing. */ | |
3510 | if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { | |
3511 | spin_unlock_irq(&phba->hbalock); | |
3512 | break; | |
3513 | } | |
3514 | spin_unlock_irq(&phba->hbalock); | |
3515 | ||
3516 | /* Otherwise, scan the entire FCF table and re-discover SAN */ | |
3517 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, | |
3518 | "2770 Start FCF table scan per async FCF " | |
3519 | "event, evt_tag:x%x, index:x%x\n", | |
3520 | acqe_fip->event_tag, acqe_fip->index); | |
3521 | rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, | |
3522 | LPFC_FCOE_FCF_GET_FIRST); | |
3523 | if (rc) | |
3524 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, | |
3525 | "2547 Issue FCF scan read FCF mailbox " | |
3526 | "command failed (x%x)\n", rc); | |
3527 | break; | |
3528 | ||
3529 | case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: | |
3530 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3531 | "2548 FCF Table full count 0x%x tag 0x%x\n", | |
3532 | bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), | |
3533 | acqe_fip->event_tag); | |
3534 | break; | |
3535 | ||
3536 | case LPFC_FIP_EVENT_TYPE_FCF_DEAD: | |
3537 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, | |
3538 | "2549 FCF (x%x) disconnected from network, " | |
3539 | "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); | |
3540 | /* | |
3541 | * If we are in the middle of FCF failover process, clear | |
3542 | * the corresponding FCF bit in the roundrobin bitmap. | |
3543 | */ | |
3544 | spin_lock_irq(&phba->hbalock); | |
3545 | if (phba->fcf.fcf_flag & FCF_DISCOVERY) { | |
3546 | spin_unlock_irq(&phba->hbalock); | |
3547 | /* Update FLOGI FCF failover eligible FCF bmask */ | |
3548 | lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); | |
3549 | break; | |
3550 | } | |
3551 | spin_unlock_irq(&phba->hbalock); | |
3552 | ||
3553 | /* If the event is not for currently used fcf do nothing */ | |
3554 | if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) | |
3555 | break; | |
3556 | ||
3557 | /* | |
3558 | * Otherwise, request the port to rediscover the entire FCF | |
3559 | * table for a fast recovery from case that the current FCF | |
3560 | * is no longer valid as we are not in the middle of FCF | |
3561 | * failover process already. | |
3562 | */ | |
3563 | spin_lock_irq(&phba->hbalock); | |
3564 | /* Mark the fast failover process in progress */ | |
3565 | phba->fcf.fcf_flag |= FCF_DEAD_DISC; | |
3566 | spin_unlock_irq(&phba->hbalock); | |
3567 | ||
3568 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, | |
3569 | "2771 Start FCF fast failover process due to " | |
3570 | "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " | |
3571 | "\n", acqe_fip->event_tag, acqe_fip->index); | |
3572 | rc = lpfc_sli4_redisc_fcf_table(phba); | |
3573 | if (rc) { | |
3574 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | | |
3575 | LOG_DISCOVERY, | |
3576 | "2772 Issue FCF rediscover mabilbox " | |
3577 | "command failed, fail through to FCF " | |
3578 | "dead event\n"); | |
3579 | spin_lock_irq(&phba->hbalock); | |
3580 | phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; | |
3581 | spin_unlock_irq(&phba->hbalock); | |
3582 | /* | |
3583 | * Last resort will fail over by treating this | |
3584 | * as a link down to FCF registration. | |
3585 | */ | |
3586 | lpfc_sli4_fcf_dead_failthrough(phba); | |
3587 | } else { | |
3588 | /* Reset FCF roundrobin bmask for new discovery */ | |
3589 | memset(phba->fcf.fcf_rr_bmask, 0, | |
3590 | sizeof(*phba->fcf.fcf_rr_bmask)); | |
3591 | /* | |
3592 | * Handling fast FCF failover to a DEAD FCF event is | |
3593 | * considered equalivant to receiving CVL to all vports. | |
3594 | */ | |
3595 | lpfc_sli4_perform_all_vport_cvl(phba); | |
3596 | } | |
3597 | break; | |
3598 | case LPFC_FIP_EVENT_TYPE_CVL: | |
3599 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, | |
3600 | "2718 Clear Virtual Link Received for VPI 0x%x" | |
3601 | " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); | |
3602 | vport = lpfc_find_vport_by_vpid(phba, | |
3603 | acqe_fip->index - phba->vpi_base); | |
3604 | ndlp = lpfc_sli4_perform_vport_cvl(vport); | |
3605 | if (!ndlp) | |
3606 | break; | |
3607 | active_vlink_present = 0; | |
3608 | ||
3609 | vports = lpfc_create_vport_work_array(phba); | |
3610 | if (vports) { | |
3611 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; | |
3612 | i++) { | |
3613 | if ((!(vports[i]->fc_flag & | |
3614 | FC_VPORT_CVL_RCVD)) && | |
3615 | (vports[i]->port_state > LPFC_FDISC)) { | |
3616 | active_vlink_present = 1; | |
3617 | break; | |
3618 | } | |
3619 | } | |
3620 | lpfc_destroy_vport_work_array(phba, vports); | |
3621 | } | |
3622 | ||
3623 | if (active_vlink_present) { | |
3624 | /* | |
3625 | * If there are other active VLinks present, | |
3626 | * re-instantiate the Vlink using FDISC. | |
3627 | */ | |
3628 | mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); | |
3629 | shost = lpfc_shost_from_vport(vport); | |
3630 | spin_lock_irq(shost->host_lock); | |
3631 | ndlp->nlp_flag |= NLP_DELAY_TMO; | |
3632 | spin_unlock_irq(shost->host_lock); | |
3633 | ndlp->nlp_last_elscmd = ELS_CMD_FDISC; | |
3634 | vport->port_state = LPFC_FDISC; | |
3635 | } else { | |
3636 | /* | |
3637 | * Otherwise, we request port to rediscover | |
3638 | * the entire FCF table for a fast recovery | |
3639 | * from possible case that the current FCF | |
3640 | * is no longer valid if we are not already | |
3641 | * in the FCF failover process. | |
3642 | */ | |
3643 | spin_lock_irq(&phba->hbalock); | |
3644 | if (phba->fcf.fcf_flag & FCF_DISCOVERY) { | |
3645 | spin_unlock_irq(&phba->hbalock); | |
3646 | break; | |
3647 | } | |
3648 | /* Mark the fast failover process in progress */ | |
3649 | phba->fcf.fcf_flag |= FCF_ACVL_DISC; | |
3650 | spin_unlock_irq(&phba->hbalock); | |
3651 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP | | |
3652 | LOG_DISCOVERY, | |
3653 | "2773 Start FCF failover per CVL, " | |
3654 | "evt_tag:x%x\n", acqe_fip->event_tag); | |
3655 | rc = lpfc_sli4_redisc_fcf_table(phba); | |
3656 | if (rc) { | |
3657 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | | |
3658 | LOG_DISCOVERY, | |
3659 | "2774 Issue FCF rediscover " | |
3660 | "mabilbox command failed, " | |
3661 | "through to CVL event\n"); | |
3662 | spin_lock_irq(&phba->hbalock); | |
3663 | phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; | |
3664 | spin_unlock_irq(&phba->hbalock); | |
3665 | /* | |
3666 | * Last resort will be re-try on the | |
3667 | * the current registered FCF entry. | |
3668 | */ | |
3669 | lpfc_retry_pport_discovery(phba); | |
3670 | } else | |
3671 | /* | |
3672 | * Reset FCF roundrobin bmask for new | |
3673 | * discovery. | |
3674 | */ | |
3675 | memset(phba->fcf.fcf_rr_bmask, 0, | |
3676 | sizeof(*phba->fcf.fcf_rr_bmask)); | |
3677 | } | |
3678 | break; | |
3679 | default: | |
3680 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3681 | "0288 Unknown FCoE event type 0x%x event tag " | |
3682 | "0x%x\n", event_type, acqe_fip->event_tag); | |
3683 | break; | |
3684 | } | |
3685 | } | |
3686 | ||
3687 | /** | |
3688 | * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event | |
3689 | * @phba: pointer to lpfc hba data structure. | |
3690 | * @acqe_link: pointer to the async dcbx completion queue entry. | |
3691 | * | |
3692 | * This routine is to handle the SLI4 asynchronous dcbx event. | |
3693 | **/ | |
3694 | static void | |
3695 | lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, | |
3696 | struct lpfc_acqe_dcbx *acqe_dcbx) | |
3697 | { | |
3698 | phba->fc_eventTag = acqe_dcbx->event_tag; | |
3699 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3700 | "0290 The SLI4 DCBX asynchronous event is not " | |
3701 | "handled yet\n"); | |
3702 | } | |
3703 | ||
3704 | /** | |
3705 | * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event | |
3706 | * @phba: pointer to lpfc hba data structure. | |
3707 | * @acqe_link: pointer to the async grp5 completion queue entry. | |
3708 | * | |
3709 | * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event | |
3710 | * is an asynchronous notified of a logical link speed change. The Port | |
3711 | * reports the logical link speed in units of 10Mbps. | |
3712 | **/ | |
3713 | static void | |
3714 | lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, | |
3715 | struct lpfc_acqe_grp5 *acqe_grp5) | |
3716 | { | |
3717 | uint16_t prev_ll_spd; | |
3718 | ||
3719 | phba->fc_eventTag = acqe_grp5->event_tag; | |
3720 | phba->fcoe_eventtag = acqe_grp5->event_tag; | |
3721 | prev_ll_spd = phba->sli4_hba.link_state.logical_speed; | |
3722 | phba->sli4_hba.link_state.logical_speed = | |
3723 | (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); | |
3724 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3725 | "2789 GRP5 Async Event: Updating logical link speed " | |
3726 | "from %dMbps to %dMbps\n", (prev_ll_spd * 10), | |
3727 | (phba->sli4_hba.link_state.logical_speed*10)); | |
3728 | } | |
3729 | ||
3730 | /** | |
3731 | * lpfc_sli4_async_event_proc - Process all the pending asynchronous event | |
3732 | * @phba: pointer to lpfc hba data structure. | |
3733 | * | |
3734 | * This routine is invoked by the worker thread to process all the pending | |
3735 | * SLI4 asynchronous events. | |
3736 | **/ | |
3737 | void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) | |
3738 | { | |
3739 | struct lpfc_cq_event *cq_event; | |
3740 | ||
3741 | /* First, declare the async event has been handled */ | |
3742 | spin_lock_irq(&phba->hbalock); | |
3743 | phba->hba_flag &= ~ASYNC_EVENT; | |
3744 | spin_unlock_irq(&phba->hbalock); | |
3745 | /* Now, handle all the async events */ | |
3746 | while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { | |
3747 | /* Get the first event from the head of the event queue */ | |
3748 | spin_lock_irq(&phba->hbalock); | |
3749 | list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, | |
3750 | cq_event, struct lpfc_cq_event, list); | |
3751 | spin_unlock_irq(&phba->hbalock); | |
3752 | /* Process the asynchronous event */ | |
3753 | switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { | |
3754 | case LPFC_TRAILER_CODE_LINK: | |
3755 | lpfc_sli4_async_link_evt(phba, | |
3756 | &cq_event->cqe.acqe_link); | |
3757 | break; | |
3758 | case LPFC_TRAILER_CODE_FCOE: | |
3759 | lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); | |
3760 | break; | |
3761 | case LPFC_TRAILER_CODE_DCBX: | |
3762 | lpfc_sli4_async_dcbx_evt(phba, | |
3763 | &cq_event->cqe.acqe_dcbx); | |
3764 | break; | |
3765 | case LPFC_TRAILER_CODE_GRP5: | |
3766 | lpfc_sli4_async_grp5_evt(phba, | |
3767 | &cq_event->cqe.acqe_grp5); | |
3768 | break; | |
3769 | case LPFC_TRAILER_CODE_FC: | |
3770 | lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); | |
3771 | break; | |
3772 | case LPFC_TRAILER_CODE_SLI: | |
3773 | lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); | |
3774 | break; | |
3775 | default: | |
3776 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
3777 | "1804 Invalid asynchrous event code: " | |
3778 | "x%x\n", bf_get(lpfc_trailer_code, | |
3779 | &cq_event->cqe.mcqe_cmpl)); | |
3780 | break; | |
3781 | } | |
3782 | /* Free the completion event processed to the free pool */ | |
3783 | lpfc_sli4_cq_event_release(phba, cq_event); | |
3784 | } | |
3785 | } | |
3786 | ||
3787 | /** | |
3788 | * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event | |
3789 | * @phba: pointer to lpfc hba data structure. | |
3790 | * | |
3791 | * This routine is invoked by the worker thread to process FCF table | |
3792 | * rediscovery pending completion event. | |
3793 | **/ | |
3794 | void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) | |
3795 | { | |
3796 | int rc; | |
3797 | ||
3798 | spin_lock_irq(&phba->hbalock); | |
3799 | /* Clear FCF rediscovery timeout event */ | |
3800 | phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; | |
3801 | /* Clear driver fast failover FCF record flag */ | |
3802 | phba->fcf.failover_rec.flag = 0; | |
3803 | /* Set state for FCF fast failover */ | |
3804 | phba->fcf.fcf_flag |= FCF_REDISC_FOV; | |
3805 | spin_unlock_irq(&phba->hbalock); | |
3806 | ||
3807 | /* Scan FCF table from the first entry to re-discover SAN */ | |
3808 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, | |
3809 | "2777 Start post-quiescent FCF table scan\n"); | |
3810 | rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); | |
3811 | if (rc) | |
3812 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, | |
3813 | "2747 Issue FCF scan read FCF mailbox " | |
3814 | "command failed 0x%x\n", rc); | |
3815 | } | |
3816 | ||
3817 | /** | |
3818 | * lpfc_api_table_setup - Set up per hba pci-device group func api jump table | |
3819 | * @phba: pointer to lpfc hba data structure. | |
3820 | * @dev_grp: The HBA PCI-Device group number. | |
3821 | * | |
3822 | * This routine is invoked to set up the per HBA PCI-Device group function | |
3823 | * API jump table entries. | |
3824 | * | |
3825 | * Return: 0 if success, otherwise -ENODEV | |
3826 | **/ | |
3827 | int | |
3828 | lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
3829 | { | |
3830 | int rc; | |
3831 | ||
3832 | /* Set up lpfc PCI-device group */ | |
3833 | phba->pci_dev_grp = dev_grp; | |
3834 | ||
3835 | /* The LPFC_PCI_DEV_OC uses SLI4 */ | |
3836 | if (dev_grp == LPFC_PCI_DEV_OC) | |
3837 | phba->sli_rev = LPFC_SLI_REV4; | |
3838 | ||
3839 | /* Set up device INIT API function jump table */ | |
3840 | rc = lpfc_init_api_table_setup(phba, dev_grp); | |
3841 | if (rc) | |
3842 | return -ENODEV; | |
3843 | /* Set up SCSI API function jump table */ | |
3844 | rc = lpfc_scsi_api_table_setup(phba, dev_grp); | |
3845 | if (rc) | |
3846 | return -ENODEV; | |
3847 | /* Set up SLI API function jump table */ | |
3848 | rc = lpfc_sli_api_table_setup(phba, dev_grp); | |
3849 | if (rc) | |
3850 | return -ENODEV; | |
3851 | /* Set up MBOX API function jump table */ | |
3852 | rc = lpfc_mbox_api_table_setup(phba, dev_grp); | |
3853 | if (rc) | |
3854 | return -ENODEV; | |
3855 | ||
3856 | return 0; | |
3857 | } | |
3858 | ||
3859 | /** | |
3860 | * lpfc_log_intr_mode - Log the active interrupt mode | |
3861 | * @phba: pointer to lpfc hba data structure. | |
3862 | * @intr_mode: active interrupt mode adopted. | |
3863 | * | |
3864 | * This routine it invoked to log the currently used active interrupt mode | |
3865 | * to the device. | |
3866 | **/ | |
3867 | static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) | |
3868 | { | |
3869 | switch (intr_mode) { | |
3870 | case 0: | |
3871 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
3872 | "0470 Enable INTx interrupt mode.\n"); | |
3873 | break; | |
3874 | case 1: | |
3875 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
3876 | "0481 Enabled MSI interrupt mode.\n"); | |
3877 | break; | |
3878 | case 2: | |
3879 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
3880 | "0480 Enabled MSI-X interrupt mode.\n"); | |
3881 | break; | |
3882 | default: | |
3883 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3884 | "0482 Illegal interrupt mode.\n"); | |
3885 | break; | |
3886 | } | |
3887 | return; | |
3888 | } | |
3889 | ||
3890 | /** | |
3891 | * lpfc_enable_pci_dev - Enable a generic PCI device. | |
3892 | * @phba: pointer to lpfc hba data structure. | |
3893 | * | |
3894 | * This routine is invoked to enable the PCI device that is common to all | |
3895 | * PCI devices. | |
3896 | * | |
3897 | * Return codes | |
3898 | * 0 - successful | |
3899 | * other values - error | |
3900 | **/ | |
3901 | static int | |
3902 | lpfc_enable_pci_dev(struct lpfc_hba *phba) | |
3903 | { | |
3904 | struct pci_dev *pdev; | |
3905 | int bars; | |
3906 | ||
3907 | /* Obtain PCI device reference */ | |
3908 | if (!phba->pcidev) | |
3909 | goto out_error; | |
3910 | else | |
3911 | pdev = phba->pcidev; | |
3912 | /* Select PCI BARs */ | |
3913 | bars = pci_select_bars(pdev, IORESOURCE_MEM); | |
3914 | /* Enable PCI device */ | |
3915 | if (pci_enable_device_mem(pdev)) | |
3916 | goto out_error; | |
3917 | /* Request PCI resource for the device */ | |
3918 | if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) | |
3919 | goto out_disable_device; | |
3920 | /* Set up device as PCI master and save state for EEH */ | |
3921 | pci_set_master(pdev); | |
3922 | pci_try_set_mwi(pdev); | |
3923 | pci_save_state(pdev); | |
3924 | ||
3925 | return 0; | |
3926 | ||
3927 | out_disable_device: | |
3928 | pci_disable_device(pdev); | |
3929 | out_error: | |
3930 | return -ENODEV; | |
3931 | } | |
3932 | ||
3933 | /** | |
3934 | * lpfc_disable_pci_dev - Disable a generic PCI device. | |
3935 | * @phba: pointer to lpfc hba data structure. | |
3936 | * | |
3937 | * This routine is invoked to disable the PCI device that is common to all | |
3938 | * PCI devices. | |
3939 | **/ | |
3940 | static void | |
3941 | lpfc_disable_pci_dev(struct lpfc_hba *phba) | |
3942 | { | |
3943 | struct pci_dev *pdev; | |
3944 | int bars; | |
3945 | ||
3946 | /* Obtain PCI device reference */ | |
3947 | if (!phba->pcidev) | |
3948 | return; | |
3949 | else | |
3950 | pdev = phba->pcidev; | |
3951 | /* Select PCI BARs */ | |
3952 | bars = pci_select_bars(pdev, IORESOURCE_MEM); | |
3953 | /* Release PCI resource and disable PCI device */ | |
3954 | pci_release_selected_regions(pdev, bars); | |
3955 | pci_disable_device(pdev); | |
3956 | /* Null out PCI private reference to driver */ | |
3957 | pci_set_drvdata(pdev, NULL); | |
3958 | ||
3959 | return; | |
3960 | } | |
3961 | ||
3962 | /** | |
3963 | * lpfc_reset_hba - Reset a hba | |
3964 | * @phba: pointer to lpfc hba data structure. | |
3965 | * | |
3966 | * This routine is invoked to reset a hba device. It brings the HBA | |
3967 | * offline, performs a board restart, and then brings the board back | |
3968 | * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up | |
3969 | * on outstanding mailbox commands. | |
3970 | **/ | |
3971 | void | |
3972 | lpfc_reset_hba(struct lpfc_hba *phba) | |
3973 | { | |
3974 | /* If resets are disabled then set error state and return. */ | |
3975 | if (!phba->cfg_enable_hba_reset) { | |
3976 | phba->link_state = LPFC_HBA_ERROR; | |
3977 | return; | |
3978 | } | |
3979 | lpfc_offline_prep(phba); | |
3980 | lpfc_offline(phba); | |
3981 | lpfc_sli_brdrestart(phba); | |
3982 | lpfc_online(phba); | |
3983 | lpfc_unblock_mgmt_io(phba); | |
3984 | } | |
3985 | ||
3986 | /** | |
3987 | * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. | |
3988 | * @phba: pointer to lpfc hba data structure. | |
3989 | * | |
3990 | * This routine is invoked to set up the driver internal resources specific to | |
3991 | * support the SLI-3 HBA device it attached to. | |
3992 | * | |
3993 | * Return codes | |
3994 | * 0 - successful | |
3995 | * other values - error | |
3996 | **/ | |
3997 | static int | |
3998 | lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) | |
3999 | { | |
4000 | struct lpfc_sli *psli; | |
4001 | ||
4002 | /* | |
4003 | * Initialize timers used by driver | |
4004 | */ | |
4005 | ||
4006 | /* Heartbeat timer */ | |
4007 | init_timer(&phba->hb_tmofunc); | |
4008 | phba->hb_tmofunc.function = lpfc_hb_timeout; | |
4009 | phba->hb_tmofunc.data = (unsigned long)phba; | |
4010 | ||
4011 | psli = &phba->sli; | |
4012 | /* MBOX heartbeat timer */ | |
4013 | init_timer(&psli->mbox_tmo); | |
4014 | psli->mbox_tmo.function = lpfc_mbox_timeout; | |
4015 | psli->mbox_tmo.data = (unsigned long) phba; | |
4016 | /* FCP polling mode timer */ | |
4017 | init_timer(&phba->fcp_poll_timer); | |
4018 | phba->fcp_poll_timer.function = lpfc_poll_timeout; | |
4019 | phba->fcp_poll_timer.data = (unsigned long) phba; | |
4020 | /* Fabric block timer */ | |
4021 | init_timer(&phba->fabric_block_timer); | |
4022 | phba->fabric_block_timer.function = lpfc_fabric_block_timeout; | |
4023 | phba->fabric_block_timer.data = (unsigned long) phba; | |
4024 | /* EA polling mode timer */ | |
4025 | init_timer(&phba->eratt_poll); | |
4026 | phba->eratt_poll.function = lpfc_poll_eratt; | |
4027 | phba->eratt_poll.data = (unsigned long) phba; | |
4028 | ||
4029 | /* Host attention work mask setup */ | |
4030 | phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); | |
4031 | phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); | |
4032 | ||
4033 | /* Get all the module params for configuring this host */ | |
4034 | lpfc_get_cfgparam(phba); | |
4035 | if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { | |
4036 | phba->menlo_flag |= HBA_MENLO_SUPPORT; | |
4037 | /* check for menlo minimum sg count */ | |
4038 | if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) | |
4039 | phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; | |
4040 | } | |
4041 | ||
4042 | /* | |
4043 | * Since the sg_tablesize is module parameter, the sg_dma_buf_size | |
4044 | * used to create the sg_dma_buf_pool must be dynamically calculated. | |
4045 | * 2 segments are added since the IOCB needs a command and response bde. | |
4046 | */ | |
4047 | phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + | |
4048 | sizeof(struct fcp_rsp) + | |
4049 | ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); | |
4050 | ||
4051 | if (phba->cfg_enable_bg) { | |
4052 | phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; | |
4053 | phba->cfg_sg_dma_buf_size += | |
4054 | phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); | |
4055 | } | |
4056 | ||
4057 | /* Also reinitialize the host templates with new values. */ | |
4058 | lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; | |
4059 | lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; | |
4060 | ||
4061 | phba->max_vpi = LPFC_MAX_VPI; | |
4062 | /* This will be set to correct value after config_port mbox */ | |
4063 | phba->max_vports = 0; | |
4064 | ||
4065 | /* | |
4066 | * Initialize the SLI Layer to run with lpfc HBAs. | |
4067 | */ | |
4068 | lpfc_sli_setup(phba); | |
4069 | lpfc_sli_queue_setup(phba); | |
4070 | ||
4071 | /* Allocate device driver memory */ | |
4072 | if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) | |
4073 | return -ENOMEM; | |
4074 | ||
4075 | return 0; | |
4076 | } | |
4077 | ||
4078 | /** | |
4079 | * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev | |
4080 | * @phba: pointer to lpfc hba data structure. | |
4081 | * | |
4082 | * This routine is invoked to unset the driver internal resources set up | |
4083 | * specific for supporting the SLI-3 HBA device it attached to. | |
4084 | **/ | |
4085 | static void | |
4086 | lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) | |
4087 | { | |
4088 | /* Free device driver memory allocated */ | |
4089 | lpfc_mem_free_all(phba); | |
4090 | ||
4091 | return; | |
4092 | } | |
4093 | ||
4094 | /** | |
4095 | * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev | |
4096 | * @phba: pointer to lpfc hba data structure. | |
4097 | * | |
4098 | * This routine is invoked to set up the driver internal resources specific to | |
4099 | * support the SLI-4 HBA device it attached to. | |
4100 | * | |
4101 | * Return codes | |
4102 | * 0 - successful | |
4103 | * other values - error | |
4104 | **/ | |
4105 | static int | |
4106 | lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) | |
4107 | { | |
4108 | struct lpfc_sli *psli; | |
4109 | LPFC_MBOXQ_t *mboxq; | |
4110 | int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; | |
4111 | uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; | |
4112 | struct lpfc_mqe *mqe; | |
4113 | int longs, sli_family; | |
4114 | ||
4115 | /* Before proceed, wait for POST done and device ready */ | |
4116 | rc = lpfc_sli4_post_status_check(phba); | |
4117 | if (rc) | |
4118 | return -ENODEV; | |
4119 | ||
4120 | /* | |
4121 | * Initialize timers used by driver | |
4122 | */ | |
4123 | ||
4124 | /* Heartbeat timer */ | |
4125 | init_timer(&phba->hb_tmofunc); | |
4126 | phba->hb_tmofunc.function = lpfc_hb_timeout; | |
4127 | phba->hb_tmofunc.data = (unsigned long)phba; | |
4128 | init_timer(&phba->rrq_tmr); | |
4129 | phba->rrq_tmr.function = lpfc_rrq_timeout; | |
4130 | phba->rrq_tmr.data = (unsigned long)phba; | |
4131 | ||
4132 | psli = &phba->sli; | |
4133 | /* MBOX heartbeat timer */ | |
4134 | init_timer(&psli->mbox_tmo); | |
4135 | psli->mbox_tmo.function = lpfc_mbox_timeout; | |
4136 | psli->mbox_tmo.data = (unsigned long) phba; | |
4137 | /* Fabric block timer */ | |
4138 | init_timer(&phba->fabric_block_timer); | |
4139 | phba->fabric_block_timer.function = lpfc_fabric_block_timeout; | |
4140 | phba->fabric_block_timer.data = (unsigned long) phba; | |
4141 | /* EA polling mode timer */ | |
4142 | init_timer(&phba->eratt_poll); | |
4143 | phba->eratt_poll.function = lpfc_poll_eratt; | |
4144 | phba->eratt_poll.data = (unsigned long) phba; | |
4145 | /* FCF rediscover timer */ | |
4146 | init_timer(&phba->fcf.redisc_wait); | |
4147 | phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; | |
4148 | phba->fcf.redisc_wait.data = (unsigned long)phba; | |
4149 | ||
4150 | /* | |
4151 | * We need to do a READ_CONFIG mailbox command here before | |
4152 | * calling lpfc_get_cfgparam. For VFs this will report the | |
4153 | * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. | |
4154 | * All of the resources allocated | |
4155 | * for this Port are tied to these values. | |
4156 | */ | |
4157 | /* Get all the module params for configuring this host */ | |
4158 | lpfc_get_cfgparam(phba); | |
4159 | phba->max_vpi = LPFC_MAX_VPI; | |
4160 | /* This will be set to correct value after the read_config mbox */ | |
4161 | phba->max_vports = 0; | |
4162 | ||
4163 | /* Program the default value of vlan_id and fc_map */ | |
4164 | phba->valid_vlan = 0; | |
4165 | phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; | |
4166 | phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; | |
4167 | phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; | |
4168 | ||
4169 | /* | |
4170 | * Since the sg_tablesize is module parameter, the sg_dma_buf_size | |
4171 | * used to create the sg_dma_buf_pool must be dynamically calculated. | |
4172 | * 2 segments are added since the IOCB needs a command and response bde. | |
4173 | * To insure that the scsi sgl does not cross a 4k page boundary only | |
4174 | * sgl sizes of must be a power of 2. | |
4175 | */ | |
4176 | buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + | |
4177 | ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge))); | |
4178 | ||
4179 | sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf); | |
4180 | max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; | |
4181 | switch (sli_family) { | |
4182 | case LPFC_SLI_INTF_FAMILY_BE2: | |
4183 | case LPFC_SLI_INTF_FAMILY_BE3: | |
4184 | /* There is a single hint for BE - 2 pages per BPL. */ | |
4185 | if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) == | |
4186 | LPFC_SLI_INTF_SLI_HINT1_1) | |
4187 | max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; | |
4188 | break; | |
4189 | case LPFC_SLI_INTF_FAMILY_LNCR_A0: | |
4190 | case LPFC_SLI_INTF_FAMILY_LNCR_B0: | |
4191 | default: | |
4192 | break; | |
4193 | } | |
4194 | for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; | |
4195 | dma_buf_size < max_buf_size && buf_size > dma_buf_size; | |
4196 | dma_buf_size = dma_buf_size << 1) | |
4197 | ; | |
4198 | if (dma_buf_size == max_buf_size) | |
4199 | phba->cfg_sg_seg_cnt = (dma_buf_size - | |
4200 | sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - | |
4201 | (2 * sizeof(struct sli4_sge))) / | |
4202 | sizeof(struct sli4_sge); | |
4203 | phba->cfg_sg_dma_buf_size = dma_buf_size; | |
4204 | ||
4205 | /* Initialize buffer queue management fields */ | |
4206 | hbq_count = lpfc_sli_hbq_count(); | |
4207 | for (i = 0; i < hbq_count; ++i) | |
4208 | INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); | |
4209 | INIT_LIST_HEAD(&phba->rb_pend_list); | |
4210 | phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; | |
4211 | phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; | |
4212 | ||
4213 | /* | |
4214 | * Initialize the SLI Layer to run with lpfc SLI4 HBAs. | |
4215 | */ | |
4216 | /* Initialize the Abort scsi buffer list used by driver */ | |
4217 | spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
4218 | INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); | |
4219 | /* This abort list used by worker thread */ | |
4220 | spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); | |
4221 | ||
4222 | /* | |
4223 | * Initialize dirver internal slow-path work queues | |
4224 | */ | |
4225 | ||
4226 | /* Driver internel slow-path CQ Event pool */ | |
4227 | INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); | |
4228 | /* Response IOCB work queue list */ | |
4229 | INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); | |
4230 | /* Asynchronous event CQ Event work queue list */ | |
4231 | INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); | |
4232 | /* Fast-path XRI aborted CQ Event work queue list */ | |
4233 | INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); | |
4234 | /* Slow-path XRI aborted CQ Event work queue list */ | |
4235 | INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); | |
4236 | /* Receive queue CQ Event work queue list */ | |
4237 | INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); | |
4238 | ||
4239 | /* Initialize the driver internal SLI layer lists. */ | |
4240 | lpfc_sli_setup(phba); | |
4241 | lpfc_sli_queue_setup(phba); | |
4242 | ||
4243 | /* Allocate device driver memory */ | |
4244 | rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); | |
4245 | if (rc) | |
4246 | return -ENOMEM; | |
4247 | ||
4248 | /* IF Type 2 ports get initialized now. */ | |
4249 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == | |
4250 | LPFC_SLI_INTF_IF_TYPE_2) { | |
4251 | rc = lpfc_pci_function_reset(phba); | |
4252 | if (unlikely(rc)) | |
4253 | return -ENODEV; | |
4254 | } | |
4255 | ||
4256 | /* Create the bootstrap mailbox command */ | |
4257 | rc = lpfc_create_bootstrap_mbox(phba); | |
4258 | if (unlikely(rc)) | |
4259 | goto out_free_mem; | |
4260 | ||
4261 | /* Set up the host's endian order with the device. */ | |
4262 | rc = lpfc_setup_endian_order(phba); | |
4263 | if (unlikely(rc)) | |
4264 | goto out_free_bsmbx; | |
4265 | ||
4266 | /* Set up the hba's configuration parameters. */ | |
4267 | rc = lpfc_sli4_read_config(phba); | |
4268 | if (unlikely(rc)) | |
4269 | goto out_free_bsmbx; | |
4270 | ||
4271 | /* IF Type 0 ports get initialized now. */ | |
4272 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == | |
4273 | LPFC_SLI_INTF_IF_TYPE_0) { | |
4274 | rc = lpfc_pci_function_reset(phba); | |
4275 | if (unlikely(rc)) | |
4276 | goto out_free_bsmbx; | |
4277 | } | |
4278 | ||
4279 | mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, | |
4280 | GFP_KERNEL); | |
4281 | if (!mboxq) { | |
4282 | rc = -ENOMEM; | |
4283 | goto out_free_bsmbx; | |
4284 | } | |
4285 | ||
4286 | /* Get the Supported Pages. It is always available. */ | |
4287 | lpfc_supported_pages(mboxq); | |
4288 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4289 | if (unlikely(rc)) { | |
4290 | rc = -EIO; | |
4291 | mempool_free(mboxq, phba->mbox_mem_pool); | |
4292 | goto out_free_bsmbx; | |
4293 | } | |
4294 | ||
4295 | mqe = &mboxq->u.mqe; | |
4296 | memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), | |
4297 | LPFC_MAX_SUPPORTED_PAGES); | |
4298 | for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { | |
4299 | switch (pn_page[i]) { | |
4300 | case LPFC_SLI4_PARAMETERS: | |
4301 | phba->sli4_hba.pc_sli4_params.supported = 1; | |
4302 | break; | |
4303 | default: | |
4304 | break; | |
4305 | } | |
4306 | } | |
4307 | ||
4308 | /* Read the port's SLI4 Parameters capabilities if supported. */ | |
4309 | if (phba->sli4_hba.pc_sli4_params.supported) | |
4310 | rc = lpfc_pc_sli4_params_get(phba, mboxq); | |
4311 | mempool_free(mboxq, phba->mbox_mem_pool); | |
4312 | if (rc) { | |
4313 | rc = -EIO; | |
4314 | goto out_free_bsmbx; | |
4315 | } | |
4316 | /* Create all the SLI4 queues */ | |
4317 | rc = lpfc_sli4_queue_create(phba); | |
4318 | if (rc) | |
4319 | goto out_free_bsmbx; | |
4320 | ||
4321 | /* Create driver internal CQE event pool */ | |
4322 | rc = lpfc_sli4_cq_event_pool_create(phba); | |
4323 | if (rc) | |
4324 | goto out_destroy_queue; | |
4325 | ||
4326 | /* Initialize and populate the iocb list per host */ | |
4327 | rc = lpfc_init_sgl_list(phba); | |
4328 | if (rc) { | |
4329 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
4330 | "1400 Failed to initialize sgl list.\n"); | |
4331 | goto out_destroy_cq_event_pool; | |
4332 | } | |
4333 | rc = lpfc_init_active_sgl_array(phba); | |
4334 | if (rc) { | |
4335 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
4336 | "1430 Failed to initialize sgl list.\n"); | |
4337 | goto out_free_sgl_list; | |
4338 | } | |
4339 | ||
4340 | rc = lpfc_sli4_init_rpi_hdrs(phba); | |
4341 | if (rc) { | |
4342 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
4343 | "1432 Failed to initialize rpi headers.\n"); | |
4344 | goto out_free_active_sgl; | |
4345 | } | |
4346 | ||
4347 | /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ | |
4348 | longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; | |
4349 | phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), | |
4350 | GFP_KERNEL); | |
4351 | if (!phba->fcf.fcf_rr_bmask) { | |
4352 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
4353 | "2759 Failed allocate memory for FCF round " | |
4354 | "robin failover bmask\n"); | |
4355 | goto out_remove_rpi_hdrs; | |
4356 | } | |
4357 | ||
4358 | phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * | |
4359 | phba->cfg_fcp_eq_count), GFP_KERNEL); | |
4360 | if (!phba->sli4_hba.fcp_eq_hdl) { | |
4361 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
4362 | "2572 Failed allocate memory for fast-path " | |
4363 | "per-EQ handle array\n"); | |
4364 | goto out_free_fcf_rr_bmask; | |
4365 | } | |
4366 | ||
4367 | phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * | |
4368 | phba->sli4_hba.cfg_eqn), GFP_KERNEL); | |
4369 | if (!phba->sli4_hba.msix_entries) { | |
4370 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
4371 | "2573 Failed allocate memory for msi-x " | |
4372 | "interrupt vector entries\n"); | |
4373 | goto out_free_fcp_eq_hdl; | |
4374 | } | |
4375 | ||
4376 | return rc; | |
4377 | ||
4378 | out_free_fcp_eq_hdl: | |
4379 | kfree(phba->sli4_hba.fcp_eq_hdl); | |
4380 | out_free_fcf_rr_bmask: | |
4381 | kfree(phba->fcf.fcf_rr_bmask); | |
4382 | out_remove_rpi_hdrs: | |
4383 | lpfc_sli4_remove_rpi_hdrs(phba); | |
4384 | out_free_active_sgl: | |
4385 | lpfc_free_active_sgl(phba); | |
4386 | out_free_sgl_list: | |
4387 | lpfc_free_sgl_list(phba); | |
4388 | out_destroy_cq_event_pool: | |
4389 | lpfc_sli4_cq_event_pool_destroy(phba); | |
4390 | out_destroy_queue: | |
4391 | lpfc_sli4_queue_destroy(phba); | |
4392 | out_free_bsmbx: | |
4393 | lpfc_destroy_bootstrap_mbox(phba); | |
4394 | out_free_mem: | |
4395 | lpfc_mem_free(phba); | |
4396 | return rc; | |
4397 | } | |
4398 | ||
4399 | /** | |
4400 | * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev | |
4401 | * @phba: pointer to lpfc hba data structure. | |
4402 | * | |
4403 | * This routine is invoked to unset the driver internal resources set up | |
4404 | * specific for supporting the SLI-4 HBA device it attached to. | |
4405 | **/ | |
4406 | static void | |
4407 | lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) | |
4408 | { | |
4409 | struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; | |
4410 | ||
4411 | /* Free memory allocated for msi-x interrupt vector entries */ | |
4412 | kfree(phba->sli4_hba.msix_entries); | |
4413 | ||
4414 | /* Free memory allocated for fast-path work queue handles */ | |
4415 | kfree(phba->sli4_hba.fcp_eq_hdl); | |
4416 | ||
4417 | /* Free the allocated rpi headers. */ | |
4418 | lpfc_sli4_remove_rpi_hdrs(phba); | |
4419 | lpfc_sli4_remove_rpis(phba); | |
4420 | ||
4421 | /* Free eligible FCF index bmask */ | |
4422 | kfree(phba->fcf.fcf_rr_bmask); | |
4423 | ||
4424 | /* Free the ELS sgl list */ | |
4425 | lpfc_free_active_sgl(phba); | |
4426 | lpfc_free_sgl_list(phba); | |
4427 | ||
4428 | /* Free the SCSI sgl management array */ | |
4429 | kfree(phba->sli4_hba.lpfc_scsi_psb_array); | |
4430 | ||
4431 | /* Free the SLI4 queues */ | |
4432 | lpfc_sli4_queue_destroy(phba); | |
4433 | ||
4434 | /* Free the completion queue EQ event pool */ | |
4435 | lpfc_sli4_cq_event_release_all(phba); | |
4436 | lpfc_sli4_cq_event_pool_destroy(phba); | |
4437 | ||
4438 | /* Free the bsmbx region. */ | |
4439 | lpfc_destroy_bootstrap_mbox(phba); | |
4440 | ||
4441 | /* Free the SLI Layer memory with SLI4 HBAs */ | |
4442 | lpfc_mem_free_all(phba); | |
4443 | ||
4444 | /* Free the current connect table */ | |
4445 | list_for_each_entry_safe(conn_entry, next_conn_entry, | |
4446 | &phba->fcf_conn_rec_list, list) { | |
4447 | list_del_init(&conn_entry->list); | |
4448 | kfree(conn_entry); | |
4449 | } | |
4450 | ||
4451 | return; | |
4452 | } | |
4453 | ||
4454 | /** | |
4455 | * lpfc_init_api_table_setup - Set up init api fucntion jump table | |
4456 | * @phba: The hba struct for which this call is being executed. | |
4457 | * @dev_grp: The HBA PCI-Device group number. | |
4458 | * | |
4459 | * This routine sets up the device INIT interface API function jump table | |
4460 | * in @phba struct. | |
4461 | * | |
4462 | * Returns: 0 - success, -ENODEV - failure. | |
4463 | **/ | |
4464 | int | |
4465 | lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
4466 | { | |
4467 | phba->lpfc_hba_init_link = lpfc_hba_init_link; | |
4468 | phba->lpfc_hba_down_link = lpfc_hba_down_link; | |
4469 | switch (dev_grp) { | |
4470 | case LPFC_PCI_DEV_LP: | |
4471 | phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; | |
4472 | phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; | |
4473 | phba->lpfc_stop_port = lpfc_stop_port_s3; | |
4474 | break; | |
4475 | case LPFC_PCI_DEV_OC: | |
4476 | phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; | |
4477 | phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; | |
4478 | phba->lpfc_stop_port = lpfc_stop_port_s4; | |
4479 | break; | |
4480 | default: | |
4481 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
4482 | "1431 Invalid HBA PCI-device group: 0x%x\n", | |
4483 | dev_grp); | |
4484 | return -ENODEV; | |
4485 | break; | |
4486 | } | |
4487 | return 0; | |
4488 | } | |
4489 | ||
4490 | /** | |
4491 | * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. | |
4492 | * @phba: pointer to lpfc hba data structure. | |
4493 | * | |
4494 | * This routine is invoked to set up the driver internal resources before the | |
4495 | * device specific resource setup to support the HBA device it attached to. | |
4496 | * | |
4497 | * Return codes | |
4498 | * 0 - successful | |
4499 | * other values - error | |
4500 | **/ | |
4501 | static int | |
4502 | lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) | |
4503 | { | |
4504 | /* | |
4505 | * Driver resources common to all SLI revisions | |
4506 | */ | |
4507 | atomic_set(&phba->fast_event_count, 0); | |
4508 | spin_lock_init(&phba->hbalock); | |
4509 | ||
4510 | /* Initialize ndlp management spinlock */ | |
4511 | spin_lock_init(&phba->ndlp_lock); | |
4512 | ||
4513 | INIT_LIST_HEAD(&phba->port_list); | |
4514 | INIT_LIST_HEAD(&phba->work_list); | |
4515 | init_waitqueue_head(&phba->wait_4_mlo_m_q); | |
4516 | ||
4517 | /* Initialize the wait queue head for the kernel thread */ | |
4518 | init_waitqueue_head(&phba->work_waitq); | |
4519 | ||
4520 | /* Initialize the scsi buffer list used by driver for scsi IO */ | |
4521 | spin_lock_init(&phba->scsi_buf_list_lock); | |
4522 | INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); | |
4523 | ||
4524 | /* Initialize the fabric iocb list */ | |
4525 | INIT_LIST_HEAD(&phba->fabric_iocb_list); | |
4526 | ||
4527 | /* Initialize list to save ELS buffers */ | |
4528 | INIT_LIST_HEAD(&phba->elsbuf); | |
4529 | ||
4530 | /* Initialize FCF connection rec list */ | |
4531 | INIT_LIST_HEAD(&phba->fcf_conn_rec_list); | |
4532 | ||
4533 | return 0; | |
4534 | } | |
4535 | ||
4536 | /** | |
4537 | * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. | |
4538 | * @phba: pointer to lpfc hba data structure. | |
4539 | * | |
4540 | * This routine is invoked to set up the driver internal resources after the | |
4541 | * device specific resource setup to support the HBA device it attached to. | |
4542 | * | |
4543 | * Return codes | |
4544 | * 0 - successful | |
4545 | * other values - error | |
4546 | **/ | |
4547 | static int | |
4548 | lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) | |
4549 | { | |
4550 | int error; | |
4551 | ||
4552 | /* Startup the kernel thread for this host adapter. */ | |
4553 | phba->worker_thread = kthread_run(lpfc_do_work, phba, | |
4554 | "lpfc_worker_%d", phba->brd_no); | |
4555 | if (IS_ERR(phba->worker_thread)) { | |
4556 | error = PTR_ERR(phba->worker_thread); | |
4557 | return error; | |
4558 | } | |
4559 | ||
4560 | return 0; | |
4561 | } | |
4562 | ||
4563 | /** | |
4564 | * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. | |
4565 | * @phba: pointer to lpfc hba data structure. | |
4566 | * | |
4567 | * This routine is invoked to unset the driver internal resources set up after | |
4568 | * the device specific resource setup for supporting the HBA device it | |
4569 | * attached to. | |
4570 | **/ | |
4571 | static void | |
4572 | lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) | |
4573 | { | |
4574 | /* Stop kernel worker thread */ | |
4575 | kthread_stop(phba->worker_thread); | |
4576 | } | |
4577 | ||
4578 | /** | |
4579 | * lpfc_free_iocb_list - Free iocb list. | |
4580 | * @phba: pointer to lpfc hba data structure. | |
4581 | * | |
4582 | * This routine is invoked to free the driver's IOCB list and memory. | |
4583 | **/ | |
4584 | static void | |
4585 | lpfc_free_iocb_list(struct lpfc_hba *phba) | |
4586 | { | |
4587 | struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; | |
4588 | ||
4589 | spin_lock_irq(&phba->hbalock); | |
4590 | list_for_each_entry_safe(iocbq_entry, iocbq_next, | |
4591 | &phba->lpfc_iocb_list, list) { | |
4592 | list_del(&iocbq_entry->list); | |
4593 | kfree(iocbq_entry); | |
4594 | phba->total_iocbq_bufs--; | |
4595 | } | |
4596 | spin_unlock_irq(&phba->hbalock); | |
4597 | ||
4598 | return; | |
4599 | } | |
4600 | ||
4601 | /** | |
4602 | * lpfc_init_iocb_list - Allocate and initialize iocb list. | |
4603 | * @phba: pointer to lpfc hba data structure. | |
4604 | * | |
4605 | * This routine is invoked to allocate and initizlize the driver's IOCB | |
4606 | * list and set up the IOCB tag array accordingly. | |
4607 | * | |
4608 | * Return codes | |
4609 | * 0 - successful | |
4610 | * other values - error | |
4611 | **/ | |
4612 | static int | |
4613 | lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) | |
4614 | { | |
4615 | struct lpfc_iocbq *iocbq_entry = NULL; | |
4616 | uint16_t iotag; | |
4617 | int i; | |
4618 | ||
4619 | /* Initialize and populate the iocb list per host. */ | |
4620 | INIT_LIST_HEAD(&phba->lpfc_iocb_list); | |
4621 | for (i = 0; i < iocb_count; i++) { | |
4622 | iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); | |
4623 | if (iocbq_entry == NULL) { | |
4624 | printk(KERN_ERR "%s: only allocated %d iocbs of " | |
4625 | "expected %d count. Unloading driver.\n", | |
4626 | __func__, i, LPFC_IOCB_LIST_CNT); | |
4627 | goto out_free_iocbq; | |
4628 | } | |
4629 | ||
4630 | iotag = lpfc_sli_next_iotag(phba, iocbq_entry); | |
4631 | if (iotag == 0) { | |
4632 | kfree(iocbq_entry); | |
4633 | printk(KERN_ERR "%s: failed to allocate IOTAG. " | |
4634 | "Unloading driver.\n", __func__); | |
4635 | goto out_free_iocbq; | |
4636 | } | |
4637 | iocbq_entry->sli4_xritag = NO_XRI; | |
4638 | ||
4639 | spin_lock_irq(&phba->hbalock); | |
4640 | list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); | |
4641 | phba->total_iocbq_bufs++; | |
4642 | spin_unlock_irq(&phba->hbalock); | |
4643 | } | |
4644 | ||
4645 | return 0; | |
4646 | ||
4647 | out_free_iocbq: | |
4648 | lpfc_free_iocb_list(phba); | |
4649 | ||
4650 | return -ENOMEM; | |
4651 | } | |
4652 | ||
4653 | /** | |
4654 | * lpfc_free_sgl_list - Free sgl list. | |
4655 | * @phba: pointer to lpfc hba data structure. | |
4656 | * | |
4657 | * This routine is invoked to free the driver's sgl list and memory. | |
4658 | **/ | |
4659 | static void | |
4660 | lpfc_free_sgl_list(struct lpfc_hba *phba) | |
4661 | { | |
4662 | struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; | |
4663 | LIST_HEAD(sglq_list); | |
4664 | ||
4665 | spin_lock_irq(&phba->hbalock); | |
4666 | list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); | |
4667 | spin_unlock_irq(&phba->hbalock); | |
4668 | ||
4669 | list_for_each_entry_safe(sglq_entry, sglq_next, | |
4670 | &sglq_list, list) { | |
4671 | list_del(&sglq_entry->list); | |
4672 | lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); | |
4673 | kfree(sglq_entry); | |
4674 | phba->sli4_hba.total_sglq_bufs--; | |
4675 | } | |
4676 | kfree(phba->sli4_hba.lpfc_els_sgl_array); | |
4677 | } | |
4678 | ||
4679 | /** | |
4680 | * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. | |
4681 | * @phba: pointer to lpfc hba data structure. | |
4682 | * | |
4683 | * This routine is invoked to allocate the driver's active sgl memory. | |
4684 | * This array will hold the sglq_entry's for active IOs. | |
4685 | **/ | |
4686 | static int | |
4687 | lpfc_init_active_sgl_array(struct lpfc_hba *phba) | |
4688 | { | |
4689 | int size; | |
4690 | size = sizeof(struct lpfc_sglq *); | |
4691 | size *= phba->sli4_hba.max_cfg_param.max_xri; | |
4692 | ||
4693 | phba->sli4_hba.lpfc_sglq_active_list = | |
4694 | kzalloc(size, GFP_KERNEL); | |
4695 | if (!phba->sli4_hba.lpfc_sglq_active_list) | |
4696 | return -ENOMEM; | |
4697 | return 0; | |
4698 | } | |
4699 | ||
4700 | /** | |
4701 | * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. | |
4702 | * @phba: pointer to lpfc hba data structure. | |
4703 | * | |
4704 | * This routine is invoked to walk through the array of active sglq entries | |
4705 | * and free all of the resources. | |
4706 | * This is just a place holder for now. | |
4707 | **/ | |
4708 | static void | |
4709 | lpfc_free_active_sgl(struct lpfc_hba *phba) | |
4710 | { | |
4711 | kfree(phba->sli4_hba.lpfc_sglq_active_list); | |
4712 | } | |
4713 | ||
4714 | /** | |
4715 | * lpfc_init_sgl_list - Allocate and initialize sgl list. | |
4716 | * @phba: pointer to lpfc hba data structure. | |
4717 | * | |
4718 | * This routine is invoked to allocate and initizlize the driver's sgl | |
4719 | * list and set up the sgl xritag tag array accordingly. | |
4720 | * | |
4721 | * Return codes | |
4722 | * 0 - successful | |
4723 | * other values - error | |
4724 | **/ | |
4725 | static int | |
4726 | lpfc_init_sgl_list(struct lpfc_hba *phba) | |
4727 | { | |
4728 | struct lpfc_sglq *sglq_entry = NULL; | |
4729 | int i; | |
4730 | int els_xri_cnt; | |
4731 | ||
4732 | els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); | |
4733 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
4734 | "2400 lpfc_init_sgl_list els %d.\n", | |
4735 | els_xri_cnt); | |
4736 | /* Initialize and populate the sglq list per host/VF. */ | |
4737 | INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); | |
4738 | INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); | |
4739 | ||
4740 | /* Sanity check on XRI management */ | |
4741 | if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { | |
4742 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
4743 | "2562 No room left for SCSI XRI allocation: " | |
4744 | "max_xri=%d, els_xri=%d\n", | |
4745 | phba->sli4_hba.max_cfg_param.max_xri, | |
4746 | els_xri_cnt); | |
4747 | return -ENOMEM; | |
4748 | } | |
4749 | ||
4750 | /* Allocate memory for the ELS XRI management array */ | |
4751 | phba->sli4_hba.lpfc_els_sgl_array = | |
4752 | kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), | |
4753 | GFP_KERNEL); | |
4754 | ||
4755 | if (!phba->sli4_hba.lpfc_els_sgl_array) { | |
4756 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
4757 | "2401 Failed to allocate memory for ELS " | |
4758 | "XRI management array of size %d.\n", | |
4759 | els_xri_cnt); | |
4760 | return -ENOMEM; | |
4761 | } | |
4762 | ||
4763 | /* Keep the SCSI XRI into the XRI management array */ | |
4764 | phba->sli4_hba.scsi_xri_max = | |
4765 | phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; | |
4766 | phba->sli4_hba.scsi_xri_cnt = 0; | |
4767 | ||
4768 | phba->sli4_hba.lpfc_scsi_psb_array = | |
4769 | kzalloc((sizeof(struct lpfc_scsi_buf *) * | |
4770 | phba->sli4_hba.scsi_xri_max), GFP_KERNEL); | |
4771 | ||
4772 | if (!phba->sli4_hba.lpfc_scsi_psb_array) { | |
4773 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
4774 | "2563 Failed to allocate memory for SCSI " | |
4775 | "XRI management array of size %d.\n", | |
4776 | phba->sli4_hba.scsi_xri_max); | |
4777 | kfree(phba->sli4_hba.lpfc_els_sgl_array); | |
4778 | return -ENOMEM; | |
4779 | } | |
4780 | ||
4781 | for (i = 0; i < els_xri_cnt; i++) { | |
4782 | sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); | |
4783 | if (sglq_entry == NULL) { | |
4784 | printk(KERN_ERR "%s: only allocated %d sgls of " | |
4785 | "expected %d count. Unloading driver.\n", | |
4786 | __func__, i, els_xri_cnt); | |
4787 | goto out_free_mem; | |
4788 | } | |
4789 | ||
4790 | sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba); | |
4791 | if (sglq_entry->sli4_xritag == NO_XRI) { | |
4792 | kfree(sglq_entry); | |
4793 | printk(KERN_ERR "%s: failed to allocate XRI.\n" | |
4794 | "Unloading driver.\n", __func__); | |
4795 | goto out_free_mem; | |
4796 | } | |
4797 | sglq_entry->buff_type = GEN_BUFF_TYPE; | |
4798 | sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); | |
4799 | if (sglq_entry->virt == NULL) { | |
4800 | kfree(sglq_entry); | |
4801 | printk(KERN_ERR "%s: failed to allocate mbuf.\n" | |
4802 | "Unloading driver.\n", __func__); | |
4803 | goto out_free_mem; | |
4804 | } | |
4805 | sglq_entry->sgl = sglq_entry->virt; | |
4806 | memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); | |
4807 | ||
4808 | /* The list order is used by later block SGL registraton */ | |
4809 | spin_lock_irq(&phba->hbalock); | |
4810 | sglq_entry->state = SGL_FREED; | |
4811 | list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); | |
4812 | phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; | |
4813 | phba->sli4_hba.total_sglq_bufs++; | |
4814 | spin_unlock_irq(&phba->hbalock); | |
4815 | } | |
4816 | return 0; | |
4817 | ||
4818 | out_free_mem: | |
4819 | kfree(phba->sli4_hba.lpfc_scsi_psb_array); | |
4820 | lpfc_free_sgl_list(phba); | |
4821 | return -ENOMEM; | |
4822 | } | |
4823 | ||
4824 | /** | |
4825 | * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port | |
4826 | * @phba: pointer to lpfc hba data structure. | |
4827 | * | |
4828 | * This routine is invoked to post rpi header templates to the | |
4829 | * HBA consistent with the SLI-4 interface spec. This routine | |
4830 | * posts a PAGE_SIZE memory region to the port to hold up to | |
4831 | * PAGE_SIZE modulo 64 rpi context headers. | |
4832 | * No locks are held here because this is an initialization routine | |
4833 | * called only from probe or lpfc_online when interrupts are not | |
4834 | * enabled and the driver is reinitializing the device. | |
4835 | * | |
4836 | * Return codes | |
4837 | * 0 - successful | |
4838 | * -ENOMEM - No availble memory | |
4839 | * -EIO - The mailbox failed to complete successfully. | |
4840 | **/ | |
4841 | int | |
4842 | lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) | |
4843 | { | |
4844 | int rc = 0; | |
4845 | int longs; | |
4846 | uint16_t rpi_count; | |
4847 | struct lpfc_rpi_hdr *rpi_hdr; | |
4848 | ||
4849 | INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); | |
4850 | ||
4851 | /* | |
4852 | * Provision an rpi bitmask range for discovery. The total count | |
4853 | * is the difference between max and base + 1. | |
4854 | */ | |
4855 | rpi_count = phba->sli4_hba.max_cfg_param.rpi_base + | |
4856 | phba->sli4_hba.max_cfg_param.max_rpi - 1; | |
4857 | ||
4858 | longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG; | |
4859 | phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long), | |
4860 | GFP_KERNEL); | |
4861 | if (!phba->sli4_hba.rpi_bmask) | |
4862 | return -ENOMEM; | |
4863 | ||
4864 | rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); | |
4865 | if (!rpi_hdr) { | |
4866 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4867 | "0391 Error during rpi post operation\n"); | |
4868 | lpfc_sli4_remove_rpis(phba); | |
4869 | rc = -ENODEV; | |
4870 | } | |
4871 | ||
4872 | return rc; | |
4873 | } | |
4874 | ||
4875 | /** | |
4876 | * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region | |
4877 | * @phba: pointer to lpfc hba data structure. | |
4878 | * | |
4879 | * This routine is invoked to allocate a single 4KB memory region to | |
4880 | * support rpis and stores them in the phba. This single region | |
4881 | * provides support for up to 64 rpis. The region is used globally | |
4882 | * by the device. | |
4883 | * | |
4884 | * Returns: | |
4885 | * A valid rpi hdr on success. | |
4886 | * A NULL pointer on any failure. | |
4887 | **/ | |
4888 | struct lpfc_rpi_hdr * | |
4889 | lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) | |
4890 | { | |
4891 | uint16_t rpi_limit, curr_rpi_range; | |
4892 | struct lpfc_dmabuf *dmabuf; | |
4893 | struct lpfc_rpi_hdr *rpi_hdr; | |
4894 | ||
4895 | rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + | |
4896 | phba->sli4_hba.max_cfg_param.max_rpi - 1; | |
4897 | ||
4898 | spin_lock_irq(&phba->hbalock); | |
4899 | curr_rpi_range = phba->sli4_hba.next_rpi; | |
4900 | spin_unlock_irq(&phba->hbalock); | |
4901 | ||
4902 | /* | |
4903 | * The port has a limited number of rpis. The increment here | |
4904 | * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value | |
4905 | * and to allow the full max_rpi range per port. | |
4906 | */ | |
4907 | if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) | |
4908 | return NULL; | |
4909 | ||
4910 | /* | |
4911 | * First allocate the protocol header region for the port. The | |
4912 | * port expects a 4KB DMA-mapped memory region that is 4K aligned. | |
4913 | */ | |
4914 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
4915 | if (!dmabuf) | |
4916 | return NULL; | |
4917 | ||
4918 | dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, | |
4919 | LPFC_HDR_TEMPLATE_SIZE, | |
4920 | &dmabuf->phys, | |
4921 | GFP_KERNEL); | |
4922 | if (!dmabuf->virt) { | |
4923 | rpi_hdr = NULL; | |
4924 | goto err_free_dmabuf; | |
4925 | } | |
4926 | ||
4927 | memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); | |
4928 | if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { | |
4929 | rpi_hdr = NULL; | |
4930 | goto err_free_coherent; | |
4931 | } | |
4932 | ||
4933 | /* Save the rpi header data for cleanup later. */ | |
4934 | rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); | |
4935 | if (!rpi_hdr) | |
4936 | goto err_free_coherent; | |
4937 | ||
4938 | rpi_hdr->dmabuf = dmabuf; | |
4939 | rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; | |
4940 | rpi_hdr->page_count = 1; | |
4941 | spin_lock_irq(&phba->hbalock); | |
4942 | rpi_hdr->start_rpi = phba->sli4_hba.next_rpi; | |
4943 | list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); | |
4944 | ||
4945 | /* | |
4946 | * The next_rpi stores the next module-64 rpi value to post | |
4947 | * in any subsequent rpi memory region postings. | |
4948 | */ | |
4949 | phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT; | |
4950 | spin_unlock_irq(&phba->hbalock); | |
4951 | return rpi_hdr; | |
4952 | ||
4953 | err_free_coherent: | |
4954 | dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, | |
4955 | dmabuf->virt, dmabuf->phys); | |
4956 | err_free_dmabuf: | |
4957 | kfree(dmabuf); | |
4958 | return NULL; | |
4959 | } | |
4960 | ||
4961 | /** | |
4962 | * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions | |
4963 | * @phba: pointer to lpfc hba data structure. | |
4964 | * | |
4965 | * This routine is invoked to remove all memory resources allocated | |
4966 | * to support rpis. This routine presumes the caller has released all | |
4967 | * rpis consumed by fabric or port logins and is prepared to have | |
4968 | * the header pages removed. | |
4969 | **/ | |
4970 | void | |
4971 | lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) | |
4972 | { | |
4973 | struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; | |
4974 | ||
4975 | list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, | |
4976 | &phba->sli4_hba.lpfc_rpi_hdr_list, list) { | |
4977 | list_del(&rpi_hdr->list); | |
4978 | dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, | |
4979 | rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); | |
4980 | kfree(rpi_hdr->dmabuf); | |
4981 | kfree(rpi_hdr); | |
4982 | } | |
4983 | ||
4984 | phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; | |
4985 | memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask)); | |
4986 | } | |
4987 | ||
4988 | /** | |
4989 | * lpfc_hba_alloc - Allocate driver hba data structure for a device. | |
4990 | * @pdev: pointer to pci device data structure. | |
4991 | * | |
4992 | * This routine is invoked to allocate the driver hba data structure for an | |
4993 | * HBA device. If the allocation is successful, the phba reference to the | |
4994 | * PCI device data structure is set. | |
4995 | * | |
4996 | * Return codes | |
4997 | * pointer to @phba - successful | |
4998 | * NULL - error | |
4999 | **/ | |
5000 | static struct lpfc_hba * | |
5001 | lpfc_hba_alloc(struct pci_dev *pdev) | |
5002 | { | |
5003 | struct lpfc_hba *phba; | |
5004 | ||
5005 | /* Allocate memory for HBA structure */ | |
5006 | phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); | |
5007 | if (!phba) { | |
5008 | dev_err(&pdev->dev, "failed to allocate hba struct\n"); | |
5009 | return NULL; | |
5010 | } | |
5011 | ||
5012 | /* Set reference to PCI device in HBA structure */ | |
5013 | phba->pcidev = pdev; | |
5014 | ||
5015 | /* Assign an unused board number */ | |
5016 | phba->brd_no = lpfc_get_instance(); | |
5017 | if (phba->brd_no < 0) { | |
5018 | kfree(phba); | |
5019 | return NULL; | |
5020 | } | |
5021 | ||
5022 | spin_lock_init(&phba->ct_ev_lock); | |
5023 | INIT_LIST_HEAD(&phba->ct_ev_waiters); | |
5024 | ||
5025 | return phba; | |
5026 | } | |
5027 | ||
5028 | /** | |
5029 | * lpfc_hba_free - Free driver hba data structure with a device. | |
5030 | * @phba: pointer to lpfc hba data structure. | |
5031 | * | |
5032 | * This routine is invoked to free the driver hba data structure with an | |
5033 | * HBA device. | |
5034 | **/ | |
5035 | static void | |
5036 | lpfc_hba_free(struct lpfc_hba *phba) | |
5037 | { | |
5038 | /* Release the driver assigned board number */ | |
5039 | idr_remove(&lpfc_hba_index, phba->brd_no); | |
5040 | ||
5041 | kfree(phba); | |
5042 | return; | |
5043 | } | |
5044 | ||
5045 | /** | |
5046 | * lpfc_create_shost - Create hba physical port with associated scsi host. | |
5047 | * @phba: pointer to lpfc hba data structure. | |
5048 | * | |
5049 | * This routine is invoked to create HBA physical port and associate a SCSI | |
5050 | * host with it. | |
5051 | * | |
5052 | * Return codes | |
5053 | * 0 - successful | |
5054 | * other values - error | |
5055 | **/ | |
5056 | static int | |
5057 | lpfc_create_shost(struct lpfc_hba *phba) | |
5058 | { | |
5059 | struct lpfc_vport *vport; | |
5060 | struct Scsi_Host *shost; | |
5061 | ||
5062 | /* Initialize HBA FC structure */ | |
5063 | phba->fc_edtov = FF_DEF_EDTOV; | |
5064 | phba->fc_ratov = FF_DEF_RATOV; | |
5065 | phba->fc_altov = FF_DEF_ALTOV; | |
5066 | phba->fc_arbtov = FF_DEF_ARBTOV; | |
5067 | ||
5068 | atomic_set(&phba->sdev_cnt, 0); | |
5069 | vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); | |
5070 | if (!vport) | |
5071 | return -ENODEV; | |
5072 | ||
5073 | shost = lpfc_shost_from_vport(vport); | |
5074 | phba->pport = vport; | |
5075 | lpfc_debugfs_initialize(vport); | |
5076 | /* Put reference to SCSI host to driver's device private data */ | |
5077 | pci_set_drvdata(phba->pcidev, shost); | |
5078 | ||
5079 | return 0; | |
5080 | } | |
5081 | ||
5082 | /** | |
5083 | * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. | |
5084 | * @phba: pointer to lpfc hba data structure. | |
5085 | * | |
5086 | * This routine is invoked to destroy HBA physical port and the associated | |
5087 | * SCSI host. | |
5088 | **/ | |
5089 | static void | |
5090 | lpfc_destroy_shost(struct lpfc_hba *phba) | |
5091 | { | |
5092 | struct lpfc_vport *vport = phba->pport; | |
5093 | ||
5094 | /* Destroy physical port that associated with the SCSI host */ | |
5095 | destroy_port(vport); | |
5096 | ||
5097 | return; | |
5098 | } | |
5099 | ||
5100 | /** | |
5101 | * lpfc_setup_bg - Setup Block guard structures and debug areas. | |
5102 | * @phba: pointer to lpfc hba data structure. | |
5103 | * @shost: the shost to be used to detect Block guard settings. | |
5104 | * | |
5105 | * This routine sets up the local Block guard protocol settings for @shost. | |
5106 | * This routine also allocates memory for debugging bg buffers. | |
5107 | **/ | |
5108 | static void | |
5109 | lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) | |
5110 | { | |
5111 | int pagecnt = 10; | |
5112 | if (lpfc_prot_mask && lpfc_prot_guard) { | |
5113 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
5114 | "1478 Registering BlockGuard with the " | |
5115 | "SCSI layer\n"); | |
5116 | scsi_host_set_prot(shost, lpfc_prot_mask); | |
5117 | scsi_host_set_guard(shost, lpfc_prot_guard); | |
5118 | } | |
5119 | if (!_dump_buf_data) { | |
5120 | while (pagecnt) { | |
5121 | spin_lock_init(&_dump_buf_lock); | |
5122 | _dump_buf_data = | |
5123 | (char *) __get_free_pages(GFP_KERNEL, pagecnt); | |
5124 | if (_dump_buf_data) { | |
5125 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
5126 | "9043 BLKGRD: allocated %d pages for " | |
5127 | "_dump_buf_data at 0x%p\n", | |
5128 | (1 << pagecnt), _dump_buf_data); | |
5129 | _dump_buf_data_order = pagecnt; | |
5130 | memset(_dump_buf_data, 0, | |
5131 | ((1 << PAGE_SHIFT) << pagecnt)); | |
5132 | break; | |
5133 | } else | |
5134 | --pagecnt; | |
5135 | } | |
5136 | if (!_dump_buf_data_order) | |
5137 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
5138 | "9044 BLKGRD: ERROR unable to allocate " | |
5139 | "memory for hexdump\n"); | |
5140 | } else | |
5141 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
5142 | "9045 BLKGRD: already allocated _dump_buf_data=0x%p" | |
5143 | "\n", _dump_buf_data); | |
5144 | if (!_dump_buf_dif) { | |
5145 | while (pagecnt) { | |
5146 | _dump_buf_dif = | |
5147 | (char *) __get_free_pages(GFP_KERNEL, pagecnt); | |
5148 | if (_dump_buf_dif) { | |
5149 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
5150 | "9046 BLKGRD: allocated %d pages for " | |
5151 | "_dump_buf_dif at 0x%p\n", | |
5152 | (1 << pagecnt), _dump_buf_dif); | |
5153 | _dump_buf_dif_order = pagecnt; | |
5154 | memset(_dump_buf_dif, 0, | |
5155 | ((1 << PAGE_SHIFT) << pagecnt)); | |
5156 | break; | |
5157 | } else | |
5158 | --pagecnt; | |
5159 | } | |
5160 | if (!_dump_buf_dif_order) | |
5161 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
5162 | "9047 BLKGRD: ERROR unable to allocate " | |
5163 | "memory for hexdump\n"); | |
5164 | } else | |
5165 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
5166 | "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", | |
5167 | _dump_buf_dif); | |
5168 | } | |
5169 | ||
5170 | /** | |
5171 | * lpfc_post_init_setup - Perform necessary device post initialization setup. | |
5172 | * @phba: pointer to lpfc hba data structure. | |
5173 | * | |
5174 | * This routine is invoked to perform all the necessary post initialization | |
5175 | * setup for the device. | |
5176 | **/ | |
5177 | static void | |
5178 | lpfc_post_init_setup(struct lpfc_hba *phba) | |
5179 | { | |
5180 | struct Scsi_Host *shost; | |
5181 | struct lpfc_adapter_event_header adapter_event; | |
5182 | ||
5183 | /* Get the default values for Model Name and Description */ | |
5184 | lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); | |
5185 | ||
5186 | /* | |
5187 | * hba setup may have changed the hba_queue_depth so we need to | |
5188 | * adjust the value of can_queue. | |
5189 | */ | |
5190 | shost = pci_get_drvdata(phba->pcidev); | |
5191 | shost->can_queue = phba->cfg_hba_queue_depth - 10; | |
5192 | if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) | |
5193 | lpfc_setup_bg(phba, shost); | |
5194 | ||
5195 | lpfc_host_attrib_init(shost); | |
5196 | ||
5197 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
5198 | spin_lock_irq(shost->host_lock); | |
5199 | lpfc_poll_start_timer(phba); | |
5200 | spin_unlock_irq(shost->host_lock); | |
5201 | } | |
5202 | ||
5203 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
5204 | "0428 Perform SCSI scan\n"); | |
5205 | /* Send board arrival event to upper layer */ | |
5206 | adapter_event.event_type = FC_REG_ADAPTER_EVENT; | |
5207 | adapter_event.subcategory = LPFC_EVENT_ARRIVAL; | |
5208 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
5209 | sizeof(adapter_event), | |
5210 | (char *) &adapter_event, | |
5211 | LPFC_NL_VENDOR_ID); | |
5212 | return; | |
5213 | } | |
5214 | ||
5215 | /** | |
5216 | * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. | |
5217 | * @phba: pointer to lpfc hba data structure. | |
5218 | * | |
5219 | * This routine is invoked to set up the PCI device memory space for device | |
5220 | * with SLI-3 interface spec. | |
5221 | * | |
5222 | * Return codes | |
5223 | * 0 - successful | |
5224 | * other values - error | |
5225 | **/ | |
5226 | static int | |
5227 | lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) | |
5228 | { | |
5229 | struct pci_dev *pdev; | |
5230 | unsigned long bar0map_len, bar2map_len; | |
5231 | int i, hbq_count; | |
5232 | void *ptr; | |
5233 | int error = -ENODEV; | |
5234 | ||
5235 | /* Obtain PCI device reference */ | |
5236 | if (!phba->pcidev) | |
5237 | return error; | |
5238 | else | |
5239 | pdev = phba->pcidev; | |
5240 | ||
5241 | /* Set the device DMA mask size */ | |
5242 | if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 | |
5243 | || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { | |
5244 | if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 | |
5245 | || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { | |
5246 | return error; | |
5247 | } | |
5248 | } | |
5249 | ||
5250 | /* Get the bus address of Bar0 and Bar2 and the number of bytes | |
5251 | * required by each mapping. | |
5252 | */ | |
5253 | phba->pci_bar0_map = pci_resource_start(pdev, 0); | |
5254 | bar0map_len = pci_resource_len(pdev, 0); | |
5255 | ||
5256 | phba->pci_bar2_map = pci_resource_start(pdev, 2); | |
5257 | bar2map_len = pci_resource_len(pdev, 2); | |
5258 | ||
5259 | /* Map HBA SLIM to a kernel virtual address. */ | |
5260 | phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); | |
5261 | if (!phba->slim_memmap_p) { | |
5262 | dev_printk(KERN_ERR, &pdev->dev, | |
5263 | "ioremap failed for SLIM memory.\n"); | |
5264 | goto out; | |
5265 | } | |
5266 | ||
5267 | /* Map HBA Control Registers to a kernel virtual address. */ | |
5268 | phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); | |
5269 | if (!phba->ctrl_regs_memmap_p) { | |
5270 | dev_printk(KERN_ERR, &pdev->dev, | |
5271 | "ioremap failed for HBA control registers.\n"); | |
5272 | goto out_iounmap_slim; | |
5273 | } | |
5274 | ||
5275 | /* Allocate memory for SLI-2 structures */ | |
5276 | phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, | |
5277 | SLI2_SLIM_SIZE, | |
5278 | &phba->slim2p.phys, | |
5279 | GFP_KERNEL); | |
5280 | if (!phba->slim2p.virt) | |
5281 | goto out_iounmap; | |
5282 | ||
5283 | memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); | |
5284 | phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); | |
5285 | phba->mbox_ext = (phba->slim2p.virt + | |
5286 | offsetof(struct lpfc_sli2_slim, mbx_ext_words)); | |
5287 | phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); | |
5288 | phba->IOCBs = (phba->slim2p.virt + | |
5289 | offsetof(struct lpfc_sli2_slim, IOCBs)); | |
5290 | ||
5291 | phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, | |
5292 | lpfc_sli_hbq_size(), | |
5293 | &phba->hbqslimp.phys, | |
5294 | GFP_KERNEL); | |
5295 | if (!phba->hbqslimp.virt) | |
5296 | goto out_free_slim; | |
5297 | ||
5298 | hbq_count = lpfc_sli_hbq_count(); | |
5299 | ptr = phba->hbqslimp.virt; | |
5300 | for (i = 0; i < hbq_count; ++i) { | |
5301 | phba->hbqs[i].hbq_virt = ptr; | |
5302 | INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); | |
5303 | ptr += (lpfc_hbq_defs[i]->entry_count * | |
5304 | sizeof(struct lpfc_hbq_entry)); | |
5305 | } | |
5306 | phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; | |
5307 | phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; | |
5308 | ||
5309 | memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); | |
5310 | ||
5311 | INIT_LIST_HEAD(&phba->rb_pend_list); | |
5312 | ||
5313 | phba->MBslimaddr = phba->slim_memmap_p; | |
5314 | phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; | |
5315 | phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; | |
5316 | phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; | |
5317 | phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; | |
5318 | ||
5319 | return 0; | |
5320 | ||
5321 | out_free_slim: | |
5322 | dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, | |
5323 | phba->slim2p.virt, phba->slim2p.phys); | |
5324 | out_iounmap: | |
5325 | iounmap(phba->ctrl_regs_memmap_p); | |
5326 | out_iounmap_slim: | |
5327 | iounmap(phba->slim_memmap_p); | |
5328 | out: | |
5329 | return error; | |
5330 | } | |
5331 | ||
5332 | /** | |
5333 | * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. | |
5334 | * @phba: pointer to lpfc hba data structure. | |
5335 | * | |
5336 | * This routine is invoked to unset the PCI device memory space for device | |
5337 | * with SLI-3 interface spec. | |
5338 | **/ | |
5339 | static void | |
5340 | lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) | |
5341 | { | |
5342 | struct pci_dev *pdev; | |
5343 | ||
5344 | /* Obtain PCI device reference */ | |
5345 | if (!phba->pcidev) | |
5346 | return; | |
5347 | else | |
5348 | pdev = phba->pcidev; | |
5349 | ||
5350 | /* Free coherent DMA memory allocated */ | |
5351 | dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), | |
5352 | phba->hbqslimp.virt, phba->hbqslimp.phys); | |
5353 | dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, | |
5354 | phba->slim2p.virt, phba->slim2p.phys); | |
5355 | ||
5356 | /* I/O memory unmap */ | |
5357 | iounmap(phba->ctrl_regs_memmap_p); | |
5358 | iounmap(phba->slim_memmap_p); | |
5359 | ||
5360 | return; | |
5361 | } | |
5362 | ||
5363 | /** | |
5364 | * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status | |
5365 | * @phba: pointer to lpfc hba data structure. | |
5366 | * | |
5367 | * This routine is invoked to wait for SLI4 device Power On Self Test (POST) | |
5368 | * done and check status. | |
5369 | * | |
5370 | * Return 0 if successful, otherwise -ENODEV. | |
5371 | **/ | |
5372 | int | |
5373 | lpfc_sli4_post_status_check(struct lpfc_hba *phba) | |
5374 | { | |
5375 | struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; | |
5376 | struct lpfc_register reg_data; | |
5377 | int i, port_error = 0; | |
5378 | uint32_t if_type; | |
5379 | ||
5380 | if (!phba->sli4_hba.PSMPHRregaddr) | |
5381 | return -ENODEV; | |
5382 | ||
5383 | /* Wait up to 30 seconds for the SLI Port POST done and ready */ | |
5384 | for (i = 0; i < 3000; i++) { | |
5385 | portsmphr_reg.word0 = readl(phba->sli4_hba.PSMPHRregaddr); | |
5386 | if (bf_get(lpfc_port_smphr_perr, &portsmphr_reg)) { | |
5387 | /* Port has a fatal POST error, break out */ | |
5388 | port_error = -ENODEV; | |
5389 | break; | |
5390 | } | |
5391 | if (LPFC_POST_STAGE_PORT_READY == | |
5392 | bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) | |
5393 | break; | |
5394 | msleep(10); | |
5395 | } | |
5396 | ||
5397 | /* | |
5398 | * If there was a port error during POST, then don't proceed with | |
5399 | * other register reads as the data may not be valid. Just exit. | |
5400 | */ | |
5401 | if (port_error) { | |
5402 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5403 | "1408 Port Failed POST - portsmphr=0x%x, " | |
5404 | "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " | |
5405 | "scr2=x%x, hscratch=x%x, pstatus=x%x\n", | |
5406 | portsmphr_reg.word0, | |
5407 | bf_get(lpfc_port_smphr_perr, &portsmphr_reg), | |
5408 | bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), | |
5409 | bf_get(lpfc_port_smphr_nip, &portsmphr_reg), | |
5410 | bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), | |
5411 | bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), | |
5412 | bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), | |
5413 | bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), | |
5414 | bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); | |
5415 | } else { | |
5416 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
5417 | "2534 Device Info: SLIFamily=0x%x, " | |
5418 | "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " | |
5419 | "SLIHint_2=0x%x, FT=0x%x\n", | |
5420 | bf_get(lpfc_sli_intf_sli_family, | |
5421 | &phba->sli4_hba.sli_intf), | |
5422 | bf_get(lpfc_sli_intf_slirev, | |
5423 | &phba->sli4_hba.sli_intf), | |
5424 | bf_get(lpfc_sli_intf_if_type, | |
5425 | &phba->sli4_hba.sli_intf), | |
5426 | bf_get(lpfc_sli_intf_sli_hint1, | |
5427 | &phba->sli4_hba.sli_intf), | |
5428 | bf_get(lpfc_sli_intf_sli_hint2, | |
5429 | &phba->sli4_hba.sli_intf), | |
5430 | bf_get(lpfc_sli_intf_func_type, | |
5431 | &phba->sli4_hba.sli_intf)); | |
5432 | /* | |
5433 | * Check for other Port errors during the initialization | |
5434 | * process. Fail the load if the port did not come up | |
5435 | * correctly. | |
5436 | */ | |
5437 | if_type = bf_get(lpfc_sli_intf_if_type, | |
5438 | &phba->sli4_hba.sli_intf); | |
5439 | switch (if_type) { | |
5440 | case LPFC_SLI_INTF_IF_TYPE_0: | |
5441 | phba->sli4_hba.ue_mask_lo = | |
5442 | readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); | |
5443 | phba->sli4_hba.ue_mask_hi = | |
5444 | readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); | |
5445 | uerrlo_reg.word0 = | |
5446 | readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); | |
5447 | uerrhi_reg.word0 = | |
5448 | readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); | |
5449 | if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || | |
5450 | (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { | |
5451 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5452 | "1422 Unrecoverable Error " | |
5453 | "Detected during POST " | |
5454 | "uerr_lo_reg=0x%x, " | |
5455 | "uerr_hi_reg=0x%x, " | |
5456 | "ue_mask_lo_reg=0x%x, " | |
5457 | "ue_mask_hi_reg=0x%x\n", | |
5458 | uerrlo_reg.word0, | |
5459 | uerrhi_reg.word0, | |
5460 | phba->sli4_hba.ue_mask_lo, | |
5461 | phba->sli4_hba.ue_mask_hi); | |
5462 | port_error = -ENODEV; | |
5463 | } | |
5464 | break; | |
5465 | case LPFC_SLI_INTF_IF_TYPE_2: | |
5466 | /* Final checks. The port status should be clean. */ | |
5467 | reg_data.word0 = | |
5468 | readl(phba->sli4_hba.u.if_type2.STATUSregaddr); | |
5469 | if (bf_get(lpfc_sliport_status_err, ®_data)) { | |
5470 | phba->work_status[0] = | |
5471 | readl(phba->sli4_hba.u.if_type2. | |
5472 | ERR1regaddr); | |
5473 | phba->work_status[1] = | |
5474 | readl(phba->sli4_hba.u.if_type2. | |
5475 | ERR2regaddr); | |
5476 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5477 | "2888 Port Error Detected " | |
5478 | "during POST: " | |
5479 | "port status reg 0x%x, " | |
5480 | "port_smphr reg 0x%x, " | |
5481 | "error 1=0x%x, error 2=0x%x\n", | |
5482 | reg_data.word0, | |
5483 | portsmphr_reg.word0, | |
5484 | phba->work_status[0], | |
5485 | phba->work_status[1]); | |
5486 | port_error = -ENODEV; | |
5487 | } | |
5488 | break; | |
5489 | case LPFC_SLI_INTF_IF_TYPE_1: | |
5490 | default: | |
5491 | break; | |
5492 | } | |
5493 | } | |
5494 | return port_error; | |
5495 | } | |
5496 | ||
5497 | /** | |
5498 | * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. | |
5499 | * @phba: pointer to lpfc hba data structure. | |
5500 | * @if_type: The SLI4 interface type getting configured. | |
5501 | * | |
5502 | * This routine is invoked to set up SLI4 BAR0 PCI config space register | |
5503 | * memory map. | |
5504 | **/ | |
5505 | static void | |
5506 | lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) | |
5507 | { | |
5508 | switch (if_type) { | |
5509 | case LPFC_SLI_INTF_IF_TYPE_0: | |
5510 | phba->sli4_hba.u.if_type0.UERRLOregaddr = | |
5511 | phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; | |
5512 | phba->sli4_hba.u.if_type0.UERRHIregaddr = | |
5513 | phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; | |
5514 | phba->sli4_hba.u.if_type0.UEMASKLOregaddr = | |
5515 | phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; | |
5516 | phba->sli4_hba.u.if_type0.UEMASKHIregaddr = | |
5517 | phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; | |
5518 | phba->sli4_hba.SLIINTFregaddr = | |
5519 | phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; | |
5520 | break; | |
5521 | case LPFC_SLI_INTF_IF_TYPE_2: | |
5522 | phba->sli4_hba.u.if_type2.ERR1regaddr = | |
5523 | phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_1; | |
5524 | phba->sli4_hba.u.if_type2.ERR2regaddr = | |
5525 | phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_2; | |
5526 | phba->sli4_hba.u.if_type2.CTRLregaddr = | |
5527 | phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_CNTRL; | |
5528 | phba->sli4_hba.u.if_type2.STATUSregaddr = | |
5529 | phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_STATUS; | |
5530 | phba->sli4_hba.SLIINTFregaddr = | |
5531 | phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; | |
5532 | phba->sli4_hba.PSMPHRregaddr = | |
5533 | phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_IF2_SMPHR; | |
5534 | phba->sli4_hba.RQDBregaddr = | |
5535 | phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL; | |
5536 | phba->sli4_hba.WQDBregaddr = | |
5537 | phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL; | |
5538 | phba->sli4_hba.EQCQDBregaddr = | |
5539 | phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; | |
5540 | phba->sli4_hba.MQDBregaddr = | |
5541 | phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; | |
5542 | phba->sli4_hba.BMBXregaddr = | |
5543 | phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; | |
5544 | break; | |
5545 | case LPFC_SLI_INTF_IF_TYPE_1: | |
5546 | default: | |
5547 | dev_printk(KERN_ERR, &phba->pcidev->dev, | |
5548 | "FATAL - unsupported SLI4 interface type - %d\n", | |
5549 | if_type); | |
5550 | break; | |
5551 | } | |
5552 | } | |
5553 | ||
5554 | /** | |
5555 | * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. | |
5556 | * @phba: pointer to lpfc hba data structure. | |
5557 | * | |
5558 | * This routine is invoked to set up SLI4 BAR1 control status register (CSR) | |
5559 | * memory map. | |
5560 | **/ | |
5561 | static void | |
5562 | lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) | |
5563 | { | |
5564 | phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + | |
5565 | LPFC_SLIPORT_IF0_SMPHR; | |
5566 | phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + | |
5567 | LPFC_HST_ISR0; | |
5568 | phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + | |
5569 | LPFC_HST_IMR0; | |
5570 | phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + | |
5571 | LPFC_HST_ISCR0; | |
5572 | } | |
5573 | ||
5574 | /** | |
5575 | * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. | |
5576 | * @phba: pointer to lpfc hba data structure. | |
5577 | * @vf: virtual function number | |
5578 | * | |
5579 | * This routine is invoked to set up SLI4 BAR2 doorbell register memory map | |
5580 | * based on the given viftual function number, @vf. | |
5581 | * | |
5582 | * Return 0 if successful, otherwise -ENODEV. | |
5583 | **/ | |
5584 | static int | |
5585 | lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) | |
5586 | { | |
5587 | if (vf > LPFC_VIR_FUNC_MAX) | |
5588 | return -ENODEV; | |
5589 | ||
5590 | phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + | |
5591 | vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); | |
5592 | phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + | |
5593 | vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); | |
5594 | phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + | |
5595 | vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); | |
5596 | phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + | |
5597 | vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); | |
5598 | phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + | |
5599 | vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); | |
5600 | return 0; | |
5601 | } | |
5602 | ||
5603 | /** | |
5604 | * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox | |
5605 | * @phba: pointer to lpfc hba data structure. | |
5606 | * | |
5607 | * This routine is invoked to create the bootstrap mailbox | |
5608 | * region consistent with the SLI-4 interface spec. This | |
5609 | * routine allocates all memory necessary to communicate | |
5610 | * mailbox commands to the port and sets up all alignment | |
5611 | * needs. No locks are expected to be held when calling | |
5612 | * this routine. | |
5613 | * | |
5614 | * Return codes | |
5615 | * 0 - successful | |
5616 | * -ENOMEM - could not allocated memory. | |
5617 | **/ | |
5618 | static int | |
5619 | lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) | |
5620 | { | |
5621 | uint32_t bmbx_size; | |
5622 | struct lpfc_dmabuf *dmabuf; | |
5623 | struct dma_address *dma_address; | |
5624 | uint32_t pa_addr; | |
5625 | uint64_t phys_addr; | |
5626 | ||
5627 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
5628 | if (!dmabuf) | |
5629 | return -ENOMEM; | |
5630 | ||
5631 | /* | |
5632 | * The bootstrap mailbox region is comprised of 2 parts | |
5633 | * plus an alignment restriction of 16 bytes. | |
5634 | */ | |
5635 | bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); | |
5636 | dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, | |
5637 | bmbx_size, | |
5638 | &dmabuf->phys, | |
5639 | GFP_KERNEL); | |
5640 | if (!dmabuf->virt) { | |
5641 | kfree(dmabuf); | |
5642 | return -ENOMEM; | |
5643 | } | |
5644 | memset(dmabuf->virt, 0, bmbx_size); | |
5645 | ||
5646 | /* | |
5647 | * Initialize the bootstrap mailbox pointers now so that the register | |
5648 | * operations are simple later. The mailbox dma address is required | |
5649 | * to be 16-byte aligned. Also align the virtual memory as each | |
5650 | * maibox is copied into the bmbx mailbox region before issuing the | |
5651 | * command to the port. | |
5652 | */ | |
5653 | phba->sli4_hba.bmbx.dmabuf = dmabuf; | |
5654 | phba->sli4_hba.bmbx.bmbx_size = bmbx_size; | |
5655 | ||
5656 | phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, | |
5657 | LPFC_ALIGN_16_BYTE); | |
5658 | phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, | |
5659 | LPFC_ALIGN_16_BYTE); | |
5660 | ||
5661 | /* | |
5662 | * Set the high and low physical addresses now. The SLI4 alignment | |
5663 | * requirement is 16 bytes and the mailbox is posted to the port | |
5664 | * as two 30-bit addresses. The other data is a bit marking whether | |
5665 | * the 30-bit address is the high or low address. | |
5666 | * Upcast bmbx aphys to 64bits so shift instruction compiles | |
5667 | * clean on 32 bit machines. | |
5668 | */ | |
5669 | dma_address = &phba->sli4_hba.bmbx.dma_address; | |
5670 | phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; | |
5671 | pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); | |
5672 | dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | | |
5673 | LPFC_BMBX_BIT1_ADDR_HI); | |
5674 | ||
5675 | pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); | |
5676 | dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | | |
5677 | LPFC_BMBX_BIT1_ADDR_LO); | |
5678 | return 0; | |
5679 | } | |
5680 | ||
5681 | /** | |
5682 | * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources | |
5683 | * @phba: pointer to lpfc hba data structure. | |
5684 | * | |
5685 | * This routine is invoked to teardown the bootstrap mailbox | |
5686 | * region and release all host resources. This routine requires | |
5687 | * the caller to ensure all mailbox commands recovered, no | |
5688 | * additional mailbox comands are sent, and interrupts are disabled | |
5689 | * before calling this routine. | |
5690 | * | |
5691 | **/ | |
5692 | static void | |
5693 | lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) | |
5694 | { | |
5695 | dma_free_coherent(&phba->pcidev->dev, | |
5696 | phba->sli4_hba.bmbx.bmbx_size, | |
5697 | phba->sli4_hba.bmbx.dmabuf->virt, | |
5698 | phba->sli4_hba.bmbx.dmabuf->phys); | |
5699 | ||
5700 | kfree(phba->sli4_hba.bmbx.dmabuf); | |
5701 | memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); | |
5702 | } | |
5703 | ||
5704 | /** | |
5705 | * lpfc_sli4_read_config - Get the config parameters. | |
5706 | * @phba: pointer to lpfc hba data structure. | |
5707 | * | |
5708 | * This routine is invoked to read the configuration parameters from the HBA. | |
5709 | * The configuration parameters are used to set the base and maximum values | |
5710 | * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource | |
5711 | * allocation for the port. | |
5712 | * | |
5713 | * Return codes | |
5714 | * 0 - successful | |
5715 | * -ENOMEM - No availble memory | |
5716 | * -EIO - The mailbox failed to complete successfully. | |
5717 | **/ | |
5718 | static int | |
5719 | lpfc_sli4_read_config(struct lpfc_hba *phba) | |
5720 | { | |
5721 | LPFC_MBOXQ_t *pmb; | |
5722 | struct lpfc_mbx_read_config *rd_config; | |
5723 | uint32_t rc = 0; | |
5724 | ||
5725 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
5726 | if (!pmb) { | |
5727 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
5728 | "2011 Unable to allocate memory for issuing " | |
5729 | "SLI_CONFIG_SPECIAL mailbox command\n"); | |
5730 | return -ENOMEM; | |
5731 | } | |
5732 | ||
5733 | lpfc_read_config(phba, pmb); | |
5734 | ||
5735 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
5736 | if (rc != MBX_SUCCESS) { | |
5737 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
5738 | "2012 Mailbox failed , mbxCmd x%x " | |
5739 | "READ_CONFIG, mbxStatus x%x\n", | |
5740 | bf_get(lpfc_mqe_command, &pmb->u.mqe), | |
5741 | bf_get(lpfc_mqe_status, &pmb->u.mqe)); | |
5742 | rc = -EIO; | |
5743 | } else { | |
5744 | rd_config = &pmb->u.mqe.un.rd_config; | |
5745 | phba->sli4_hba.max_cfg_param.max_xri = | |
5746 | bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); | |
5747 | phba->sli4_hba.max_cfg_param.xri_base = | |
5748 | bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); | |
5749 | phba->sli4_hba.max_cfg_param.max_vpi = | |
5750 | bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); | |
5751 | phba->sli4_hba.max_cfg_param.vpi_base = | |
5752 | bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); | |
5753 | phba->sli4_hba.max_cfg_param.max_rpi = | |
5754 | bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); | |
5755 | phba->sli4_hba.max_cfg_param.rpi_base = | |
5756 | bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); | |
5757 | phba->sli4_hba.max_cfg_param.max_vfi = | |
5758 | bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); | |
5759 | phba->sli4_hba.max_cfg_param.vfi_base = | |
5760 | bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); | |
5761 | phba->sli4_hba.max_cfg_param.max_fcfi = | |
5762 | bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); | |
5763 | phba->sli4_hba.max_cfg_param.fcfi_base = | |
5764 | bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config); | |
5765 | phba->sli4_hba.max_cfg_param.max_eq = | |
5766 | bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); | |
5767 | phba->sli4_hba.max_cfg_param.max_rq = | |
5768 | bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); | |
5769 | phba->sli4_hba.max_cfg_param.max_wq = | |
5770 | bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); | |
5771 | phba->sli4_hba.max_cfg_param.max_cq = | |
5772 | bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); | |
5773 | phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); | |
5774 | phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; | |
5775 | phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; | |
5776 | phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; | |
5777 | phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; | |
5778 | phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? | |
5779 | (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; | |
5780 | phba->max_vports = phba->max_vpi; | |
5781 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
5782 | "2003 cfg params XRI(B:%d M:%d), " | |
5783 | "VPI(B:%d M:%d) " | |
5784 | "VFI(B:%d M:%d) " | |
5785 | "RPI(B:%d M:%d) " | |
5786 | "FCFI(B:%d M:%d)\n", | |
5787 | phba->sli4_hba.max_cfg_param.xri_base, | |
5788 | phba->sli4_hba.max_cfg_param.max_xri, | |
5789 | phba->sli4_hba.max_cfg_param.vpi_base, | |
5790 | phba->sli4_hba.max_cfg_param.max_vpi, | |
5791 | phba->sli4_hba.max_cfg_param.vfi_base, | |
5792 | phba->sli4_hba.max_cfg_param.max_vfi, | |
5793 | phba->sli4_hba.max_cfg_param.rpi_base, | |
5794 | phba->sli4_hba.max_cfg_param.max_rpi, | |
5795 | phba->sli4_hba.max_cfg_param.fcfi_base, | |
5796 | phba->sli4_hba.max_cfg_param.max_fcfi); | |
5797 | } | |
5798 | mempool_free(pmb, phba->mbox_mem_pool); | |
5799 | ||
5800 | /* Reset the DFT_HBA_Q_DEPTH to the max xri */ | |
5801 | if (phba->cfg_hba_queue_depth > | |
5802 | (phba->sli4_hba.max_cfg_param.max_xri - | |
5803 | lpfc_sli4_get_els_iocb_cnt(phba))) | |
5804 | phba->cfg_hba_queue_depth = | |
5805 | phba->sli4_hba.max_cfg_param.max_xri - | |
5806 | lpfc_sli4_get_els_iocb_cnt(phba); | |
5807 | return rc; | |
5808 | } | |
5809 | ||
5810 | /** | |
5811 | * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. | |
5812 | * @phba: pointer to lpfc hba data structure. | |
5813 | * | |
5814 | * This routine is invoked to setup the port-side endian order when | |
5815 | * the port if_type is 0. This routine has no function for other | |
5816 | * if_types. | |
5817 | * | |
5818 | * Return codes | |
5819 | * 0 - successful | |
5820 | * -ENOMEM - No availble memory | |
5821 | * -EIO - The mailbox failed to complete successfully. | |
5822 | **/ | |
5823 | static int | |
5824 | lpfc_setup_endian_order(struct lpfc_hba *phba) | |
5825 | { | |
5826 | LPFC_MBOXQ_t *mboxq; | |
5827 | uint32_t if_type, rc = 0; | |
5828 | uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, | |
5829 | HOST_ENDIAN_HIGH_WORD1}; | |
5830 | ||
5831 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); | |
5832 | switch (if_type) { | |
5833 | case LPFC_SLI_INTF_IF_TYPE_0: | |
5834 | mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, | |
5835 | GFP_KERNEL); | |
5836 | if (!mboxq) { | |
5837 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5838 | "0492 Unable to allocate memory for " | |
5839 | "issuing SLI_CONFIG_SPECIAL mailbox " | |
5840 | "command\n"); | |
5841 | return -ENOMEM; | |
5842 | } | |
5843 | ||
5844 | /* | |
5845 | * The SLI4_CONFIG_SPECIAL mailbox command requires the first | |
5846 | * two words to contain special data values and no other data. | |
5847 | */ | |
5848 | memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); | |
5849 | memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); | |
5850 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
5851 | if (rc != MBX_SUCCESS) { | |
5852 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5853 | "0493 SLI_CONFIG_SPECIAL mailbox " | |
5854 | "failed with status x%x\n", | |
5855 | rc); | |
5856 | rc = -EIO; | |
5857 | } | |
5858 | mempool_free(mboxq, phba->mbox_mem_pool); | |
5859 | break; | |
5860 | case LPFC_SLI_INTF_IF_TYPE_2: | |
5861 | case LPFC_SLI_INTF_IF_TYPE_1: | |
5862 | default: | |
5863 | break; | |
5864 | } | |
5865 | return rc; | |
5866 | } | |
5867 | ||
5868 | /** | |
5869 | * lpfc_sli4_queue_create - Create all the SLI4 queues | |
5870 | * @phba: pointer to lpfc hba data structure. | |
5871 | * | |
5872 | * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA | |
5873 | * operation. For each SLI4 queue type, the parameters such as queue entry | |
5874 | * count (queue depth) shall be taken from the module parameter. For now, | |
5875 | * we just use some constant number as place holder. | |
5876 | * | |
5877 | * Return codes | |
5878 | * 0 - successful | |
5879 | * -ENOMEM - No availble memory | |
5880 | * -EIO - The mailbox failed to complete successfully. | |
5881 | **/ | |
5882 | static int | |
5883 | lpfc_sli4_queue_create(struct lpfc_hba *phba) | |
5884 | { | |
5885 | struct lpfc_queue *qdesc; | |
5886 | int fcp_eqidx, fcp_cqidx, fcp_wqidx; | |
5887 | int cfg_fcp_wq_count; | |
5888 | int cfg_fcp_eq_count; | |
5889 | ||
5890 | /* | |
5891 | * Sanity check for confiugred queue parameters against the run-time | |
5892 | * device parameters | |
5893 | */ | |
5894 | ||
5895 | /* Sanity check on FCP fast-path WQ parameters */ | |
5896 | cfg_fcp_wq_count = phba->cfg_fcp_wq_count; | |
5897 | if (cfg_fcp_wq_count > | |
5898 | (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { | |
5899 | cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - | |
5900 | LPFC_SP_WQN_DEF; | |
5901 | if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { | |
5902 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5903 | "2581 Not enough WQs (%d) from " | |
5904 | "the pci function for supporting " | |
5905 | "FCP WQs (%d)\n", | |
5906 | phba->sli4_hba.max_cfg_param.max_wq, | |
5907 | phba->cfg_fcp_wq_count); | |
5908 | goto out_error; | |
5909 | } | |
5910 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
5911 | "2582 Not enough WQs (%d) from the pci " | |
5912 | "function for supporting the requested " | |
5913 | "FCP WQs (%d), the actual FCP WQs can " | |
5914 | "be supported: %d\n", | |
5915 | phba->sli4_hba.max_cfg_param.max_wq, | |
5916 | phba->cfg_fcp_wq_count, cfg_fcp_wq_count); | |
5917 | } | |
5918 | /* The actual number of FCP work queues adopted */ | |
5919 | phba->cfg_fcp_wq_count = cfg_fcp_wq_count; | |
5920 | ||
5921 | /* Sanity check on FCP fast-path EQ parameters */ | |
5922 | cfg_fcp_eq_count = phba->cfg_fcp_eq_count; | |
5923 | if (cfg_fcp_eq_count > | |
5924 | (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { | |
5925 | cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - | |
5926 | LPFC_SP_EQN_DEF; | |
5927 | if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { | |
5928 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5929 | "2574 Not enough EQs (%d) from the " | |
5930 | "pci function for supporting FCP " | |
5931 | "EQs (%d)\n", | |
5932 | phba->sli4_hba.max_cfg_param.max_eq, | |
5933 | phba->cfg_fcp_eq_count); | |
5934 | goto out_error; | |
5935 | } | |
5936 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
5937 | "2575 Not enough EQs (%d) from the pci " | |
5938 | "function for supporting the requested " | |
5939 | "FCP EQs (%d), the actual FCP EQs can " | |
5940 | "be supported: %d\n", | |
5941 | phba->sli4_hba.max_cfg_param.max_eq, | |
5942 | phba->cfg_fcp_eq_count, cfg_fcp_eq_count); | |
5943 | } | |
5944 | /* It does not make sense to have more EQs than WQs */ | |
5945 | if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { | |
5946 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
5947 | "2593 The FCP EQ count(%d) cannot be greater " | |
5948 | "than the FCP WQ count(%d), limiting the " | |
5949 | "FCP EQ count to %d\n", cfg_fcp_eq_count, | |
5950 | phba->cfg_fcp_wq_count, | |
5951 | phba->cfg_fcp_wq_count); | |
5952 | cfg_fcp_eq_count = phba->cfg_fcp_wq_count; | |
5953 | } | |
5954 | /* The actual number of FCP event queues adopted */ | |
5955 | phba->cfg_fcp_eq_count = cfg_fcp_eq_count; | |
5956 | /* The overall number of event queues used */ | |
5957 | phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; | |
5958 | ||
5959 | /* | |
5960 | * Create Event Queues (EQs) | |
5961 | */ | |
5962 | ||
5963 | /* Get EQ depth from module parameter, fake the default for now */ | |
5964 | phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; | |
5965 | phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; | |
5966 | ||
5967 | /* Create slow path event queue */ | |
5968 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, | |
5969 | phba->sli4_hba.eq_ecount); | |
5970 | if (!qdesc) { | |
5971 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5972 | "0496 Failed allocate slow-path EQ\n"); | |
5973 | goto out_error; | |
5974 | } | |
5975 | phba->sli4_hba.sp_eq = qdesc; | |
5976 | ||
5977 | /* Create fast-path FCP Event Queue(s) */ | |
5978 | phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * | |
5979 | phba->cfg_fcp_eq_count), GFP_KERNEL); | |
5980 | if (!phba->sli4_hba.fp_eq) { | |
5981 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5982 | "2576 Failed allocate memory for fast-path " | |
5983 | "EQ record array\n"); | |
5984 | goto out_free_sp_eq; | |
5985 | } | |
5986 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { | |
5987 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, | |
5988 | phba->sli4_hba.eq_ecount); | |
5989 | if (!qdesc) { | |
5990 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5991 | "0497 Failed allocate fast-path EQ\n"); | |
5992 | goto out_free_fp_eq; | |
5993 | } | |
5994 | phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; | |
5995 | } | |
5996 | ||
5997 | /* | |
5998 | * Create Complete Queues (CQs) | |
5999 | */ | |
6000 | ||
6001 | /* Get CQ depth from module parameter, fake the default for now */ | |
6002 | phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; | |
6003 | phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; | |
6004 | ||
6005 | /* Create slow-path Mailbox Command Complete Queue */ | |
6006 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, | |
6007 | phba->sli4_hba.cq_ecount); | |
6008 | if (!qdesc) { | |
6009 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6010 | "0500 Failed allocate slow-path mailbox CQ\n"); | |
6011 | goto out_free_fp_eq; | |
6012 | } | |
6013 | phba->sli4_hba.mbx_cq = qdesc; | |
6014 | ||
6015 | /* Create slow-path ELS Complete Queue */ | |
6016 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, | |
6017 | phba->sli4_hba.cq_ecount); | |
6018 | if (!qdesc) { | |
6019 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6020 | "0501 Failed allocate slow-path ELS CQ\n"); | |
6021 | goto out_free_mbx_cq; | |
6022 | } | |
6023 | phba->sli4_hba.els_cq = qdesc; | |
6024 | ||
6025 | ||
6026 | /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ | |
6027 | phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * | |
6028 | phba->cfg_fcp_eq_count), GFP_KERNEL); | |
6029 | if (!phba->sli4_hba.fcp_cq) { | |
6030 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6031 | "2577 Failed allocate memory for fast-path " | |
6032 | "CQ record array\n"); | |
6033 | goto out_free_els_cq; | |
6034 | } | |
6035 | for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { | |
6036 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, | |
6037 | phba->sli4_hba.cq_ecount); | |
6038 | if (!qdesc) { | |
6039 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6040 | "0499 Failed allocate fast-path FCP " | |
6041 | "CQ (%d)\n", fcp_cqidx); | |
6042 | goto out_free_fcp_cq; | |
6043 | } | |
6044 | phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; | |
6045 | } | |
6046 | ||
6047 | /* Create Mailbox Command Queue */ | |
6048 | phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; | |
6049 | phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; | |
6050 | ||
6051 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, | |
6052 | phba->sli4_hba.mq_ecount); | |
6053 | if (!qdesc) { | |
6054 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6055 | "0505 Failed allocate slow-path MQ\n"); | |
6056 | goto out_free_fcp_cq; | |
6057 | } | |
6058 | phba->sli4_hba.mbx_wq = qdesc; | |
6059 | ||
6060 | /* | |
6061 | * Create all the Work Queues (WQs) | |
6062 | */ | |
6063 | phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; | |
6064 | phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; | |
6065 | ||
6066 | /* Create slow-path ELS Work Queue */ | |
6067 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, | |
6068 | phba->sli4_hba.wq_ecount); | |
6069 | if (!qdesc) { | |
6070 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6071 | "0504 Failed allocate slow-path ELS WQ\n"); | |
6072 | goto out_free_mbx_wq; | |
6073 | } | |
6074 | phba->sli4_hba.els_wq = qdesc; | |
6075 | ||
6076 | /* Create fast-path FCP Work Queue(s) */ | |
6077 | phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * | |
6078 | phba->cfg_fcp_wq_count), GFP_KERNEL); | |
6079 | if (!phba->sli4_hba.fcp_wq) { | |
6080 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6081 | "2578 Failed allocate memory for fast-path " | |
6082 | "WQ record array\n"); | |
6083 | goto out_free_els_wq; | |
6084 | } | |
6085 | for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { | |
6086 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, | |
6087 | phba->sli4_hba.wq_ecount); | |
6088 | if (!qdesc) { | |
6089 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6090 | "0503 Failed allocate fast-path FCP " | |
6091 | "WQ (%d)\n", fcp_wqidx); | |
6092 | goto out_free_fcp_wq; | |
6093 | } | |
6094 | phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; | |
6095 | } | |
6096 | ||
6097 | /* | |
6098 | * Create Receive Queue (RQ) | |
6099 | */ | |
6100 | phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; | |
6101 | phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; | |
6102 | ||
6103 | /* Create Receive Queue for header */ | |
6104 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, | |
6105 | phba->sli4_hba.rq_ecount); | |
6106 | if (!qdesc) { | |
6107 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6108 | "0506 Failed allocate receive HRQ\n"); | |
6109 | goto out_free_fcp_wq; | |
6110 | } | |
6111 | phba->sli4_hba.hdr_rq = qdesc; | |
6112 | ||
6113 | /* Create Receive Queue for data */ | |
6114 | qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, | |
6115 | phba->sli4_hba.rq_ecount); | |
6116 | if (!qdesc) { | |
6117 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6118 | "0507 Failed allocate receive DRQ\n"); | |
6119 | goto out_free_hdr_rq; | |
6120 | } | |
6121 | phba->sli4_hba.dat_rq = qdesc; | |
6122 | ||
6123 | return 0; | |
6124 | ||
6125 | out_free_hdr_rq: | |
6126 | lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); | |
6127 | phba->sli4_hba.hdr_rq = NULL; | |
6128 | out_free_fcp_wq: | |
6129 | for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { | |
6130 | lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); | |
6131 | phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; | |
6132 | } | |
6133 | kfree(phba->sli4_hba.fcp_wq); | |
6134 | out_free_els_wq: | |
6135 | lpfc_sli4_queue_free(phba->sli4_hba.els_wq); | |
6136 | phba->sli4_hba.els_wq = NULL; | |
6137 | out_free_mbx_wq: | |
6138 | lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); | |
6139 | phba->sli4_hba.mbx_wq = NULL; | |
6140 | out_free_fcp_cq: | |
6141 | for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { | |
6142 | lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); | |
6143 | phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; | |
6144 | } | |
6145 | kfree(phba->sli4_hba.fcp_cq); | |
6146 | out_free_els_cq: | |
6147 | lpfc_sli4_queue_free(phba->sli4_hba.els_cq); | |
6148 | phba->sli4_hba.els_cq = NULL; | |
6149 | out_free_mbx_cq: | |
6150 | lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); | |
6151 | phba->sli4_hba.mbx_cq = NULL; | |
6152 | out_free_fp_eq: | |
6153 | for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { | |
6154 | lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); | |
6155 | phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; | |
6156 | } | |
6157 | kfree(phba->sli4_hba.fp_eq); | |
6158 | out_free_sp_eq: | |
6159 | lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); | |
6160 | phba->sli4_hba.sp_eq = NULL; | |
6161 | out_error: | |
6162 | return -ENOMEM; | |
6163 | } | |
6164 | ||
6165 | /** | |
6166 | * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues | |
6167 | * @phba: pointer to lpfc hba data structure. | |
6168 | * | |
6169 | * This routine is invoked to release all the SLI4 queues with the FCoE HBA | |
6170 | * operation. | |
6171 | * | |
6172 | * Return codes | |
6173 | * 0 - successful | |
6174 | * -ENOMEM - No availble memory | |
6175 | * -EIO - The mailbox failed to complete successfully. | |
6176 | **/ | |
6177 | static void | |
6178 | lpfc_sli4_queue_destroy(struct lpfc_hba *phba) | |
6179 | { | |
6180 | int fcp_qidx; | |
6181 | ||
6182 | /* Release mailbox command work queue */ | |
6183 | lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); | |
6184 | phba->sli4_hba.mbx_wq = NULL; | |
6185 | ||
6186 | /* Release ELS work queue */ | |
6187 | lpfc_sli4_queue_free(phba->sli4_hba.els_wq); | |
6188 | phba->sli4_hba.els_wq = NULL; | |
6189 | ||
6190 | /* Release FCP work queue */ | |
6191 | for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) | |
6192 | lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); | |
6193 | kfree(phba->sli4_hba.fcp_wq); | |
6194 | phba->sli4_hba.fcp_wq = NULL; | |
6195 | ||
6196 | /* Release unsolicited receive queue */ | |
6197 | lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); | |
6198 | phba->sli4_hba.hdr_rq = NULL; | |
6199 | lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); | |
6200 | phba->sli4_hba.dat_rq = NULL; | |
6201 | ||
6202 | /* Release ELS complete queue */ | |
6203 | lpfc_sli4_queue_free(phba->sli4_hba.els_cq); | |
6204 | phba->sli4_hba.els_cq = NULL; | |
6205 | ||
6206 | /* Release mailbox command complete queue */ | |
6207 | lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); | |
6208 | phba->sli4_hba.mbx_cq = NULL; | |
6209 | ||
6210 | /* Release FCP response complete queue */ | |
6211 | for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) | |
6212 | lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); | |
6213 | kfree(phba->sli4_hba.fcp_cq); | |
6214 | phba->sli4_hba.fcp_cq = NULL; | |
6215 | ||
6216 | /* Release fast-path event queue */ | |
6217 | for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) | |
6218 | lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); | |
6219 | kfree(phba->sli4_hba.fp_eq); | |
6220 | phba->sli4_hba.fp_eq = NULL; | |
6221 | ||
6222 | /* Release slow-path event queue */ | |
6223 | lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); | |
6224 | phba->sli4_hba.sp_eq = NULL; | |
6225 | ||
6226 | return; | |
6227 | } | |
6228 | ||
6229 | /** | |
6230 | * lpfc_sli4_queue_setup - Set up all the SLI4 queues | |
6231 | * @phba: pointer to lpfc hba data structure. | |
6232 | * | |
6233 | * This routine is invoked to set up all the SLI4 queues for the FCoE HBA | |
6234 | * operation. | |
6235 | * | |
6236 | * Return codes | |
6237 | * 0 - successful | |
6238 | * -ENOMEM - No availble memory | |
6239 | * -EIO - The mailbox failed to complete successfully. | |
6240 | **/ | |
6241 | int | |
6242 | lpfc_sli4_queue_setup(struct lpfc_hba *phba) | |
6243 | { | |
6244 | int rc = -ENOMEM; | |
6245 | int fcp_eqidx, fcp_cqidx, fcp_wqidx; | |
6246 | int fcp_cq_index = 0; | |
6247 | ||
6248 | /* | |
6249 | * Set up Event Queues (EQs) | |
6250 | */ | |
6251 | ||
6252 | /* Set up slow-path event queue */ | |
6253 | if (!phba->sli4_hba.sp_eq) { | |
6254 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6255 | "0520 Slow-path EQ not allocated\n"); | |
6256 | goto out_error; | |
6257 | } | |
6258 | rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, | |
6259 | LPFC_SP_DEF_IMAX); | |
6260 | if (rc) { | |
6261 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6262 | "0521 Failed setup of slow-path EQ: " | |
6263 | "rc = 0x%x\n", rc); | |
6264 | goto out_error; | |
6265 | } | |
6266 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
6267 | "2583 Slow-path EQ setup: queue-id=%d\n", | |
6268 | phba->sli4_hba.sp_eq->queue_id); | |
6269 | ||
6270 | /* Set up fast-path event queue */ | |
6271 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { | |
6272 | if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { | |
6273 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6274 | "0522 Fast-path EQ (%d) not " | |
6275 | "allocated\n", fcp_eqidx); | |
6276 | goto out_destroy_fp_eq; | |
6277 | } | |
6278 | rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], | |
6279 | phba->cfg_fcp_imax); | |
6280 | if (rc) { | |
6281 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6282 | "0523 Failed setup of fast-path EQ " | |
6283 | "(%d), rc = 0x%x\n", fcp_eqidx, rc); | |
6284 | goto out_destroy_fp_eq; | |
6285 | } | |
6286 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
6287 | "2584 Fast-path EQ setup: " | |
6288 | "queue[%d]-id=%d\n", fcp_eqidx, | |
6289 | phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); | |
6290 | } | |
6291 | ||
6292 | /* | |
6293 | * Set up Complete Queues (CQs) | |
6294 | */ | |
6295 | ||
6296 | /* Set up slow-path MBOX Complete Queue as the first CQ */ | |
6297 | if (!phba->sli4_hba.mbx_cq) { | |
6298 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6299 | "0528 Mailbox CQ not allocated\n"); | |
6300 | goto out_destroy_fp_eq; | |
6301 | } | |
6302 | rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, | |
6303 | LPFC_MCQ, LPFC_MBOX); | |
6304 | if (rc) { | |
6305 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6306 | "0529 Failed setup of slow-path mailbox CQ: " | |
6307 | "rc = 0x%x\n", rc); | |
6308 | goto out_destroy_fp_eq; | |
6309 | } | |
6310 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
6311 | "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", | |
6312 | phba->sli4_hba.mbx_cq->queue_id, | |
6313 | phba->sli4_hba.sp_eq->queue_id); | |
6314 | ||
6315 | /* Set up slow-path ELS Complete Queue */ | |
6316 | if (!phba->sli4_hba.els_cq) { | |
6317 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6318 | "0530 ELS CQ not allocated\n"); | |
6319 | goto out_destroy_mbx_cq; | |
6320 | } | |
6321 | rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, | |
6322 | LPFC_WCQ, LPFC_ELS); | |
6323 | if (rc) { | |
6324 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6325 | "0531 Failed setup of slow-path ELS CQ: " | |
6326 | "rc = 0x%x\n", rc); | |
6327 | goto out_destroy_mbx_cq; | |
6328 | } | |
6329 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
6330 | "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", | |
6331 | phba->sli4_hba.els_cq->queue_id, | |
6332 | phba->sli4_hba.sp_eq->queue_id); | |
6333 | ||
6334 | /* Set up fast-path FCP Response Complete Queue */ | |
6335 | for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { | |
6336 | if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { | |
6337 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6338 | "0526 Fast-path FCP CQ (%d) not " | |
6339 | "allocated\n", fcp_cqidx); | |
6340 | goto out_destroy_fcp_cq; | |
6341 | } | |
6342 | rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], | |
6343 | phba->sli4_hba.fp_eq[fcp_cqidx], | |
6344 | LPFC_WCQ, LPFC_FCP); | |
6345 | if (rc) { | |
6346 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6347 | "0527 Failed setup of fast-path FCP " | |
6348 | "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); | |
6349 | goto out_destroy_fcp_cq; | |
6350 | } | |
6351 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
6352 | "2588 FCP CQ setup: cq[%d]-id=%d, " | |
6353 | "parent eq[%d]-id=%d\n", | |
6354 | fcp_cqidx, | |
6355 | phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, | |
6356 | fcp_cqidx, | |
6357 | phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id); | |
6358 | } | |
6359 | ||
6360 | /* | |
6361 | * Set up all the Work Queues (WQs) | |
6362 | */ | |
6363 | ||
6364 | /* Set up Mailbox Command Queue */ | |
6365 | if (!phba->sli4_hba.mbx_wq) { | |
6366 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6367 | "0538 Slow-path MQ not allocated\n"); | |
6368 | goto out_destroy_fcp_cq; | |
6369 | } | |
6370 | rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, | |
6371 | phba->sli4_hba.mbx_cq, LPFC_MBOX); | |
6372 | if (rc) { | |
6373 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6374 | "0539 Failed setup of slow-path MQ: " | |
6375 | "rc = 0x%x\n", rc); | |
6376 | goto out_destroy_fcp_cq; | |
6377 | } | |
6378 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
6379 | "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", | |
6380 | phba->sli4_hba.mbx_wq->queue_id, | |
6381 | phba->sli4_hba.mbx_cq->queue_id); | |
6382 | ||
6383 | /* Set up slow-path ELS Work Queue */ | |
6384 | if (!phba->sli4_hba.els_wq) { | |
6385 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6386 | "0536 Slow-path ELS WQ not allocated\n"); | |
6387 | goto out_destroy_mbx_wq; | |
6388 | } | |
6389 | rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, | |
6390 | phba->sli4_hba.els_cq, LPFC_ELS); | |
6391 | if (rc) { | |
6392 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6393 | "0537 Failed setup of slow-path ELS WQ: " | |
6394 | "rc = 0x%x\n", rc); | |
6395 | goto out_destroy_mbx_wq; | |
6396 | } | |
6397 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
6398 | "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", | |
6399 | phba->sli4_hba.els_wq->queue_id, | |
6400 | phba->sli4_hba.els_cq->queue_id); | |
6401 | ||
6402 | /* Set up fast-path FCP Work Queue */ | |
6403 | for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { | |
6404 | if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { | |
6405 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6406 | "0534 Fast-path FCP WQ (%d) not " | |
6407 | "allocated\n", fcp_wqidx); | |
6408 | goto out_destroy_fcp_wq; | |
6409 | } | |
6410 | rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], | |
6411 | phba->sli4_hba.fcp_cq[fcp_cq_index], | |
6412 | LPFC_FCP); | |
6413 | if (rc) { | |
6414 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6415 | "0535 Failed setup of fast-path FCP " | |
6416 | "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); | |
6417 | goto out_destroy_fcp_wq; | |
6418 | } | |
6419 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
6420 | "2591 FCP WQ setup: wq[%d]-id=%d, " | |
6421 | "parent cq[%d]-id=%d\n", | |
6422 | fcp_wqidx, | |
6423 | phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, | |
6424 | fcp_cq_index, | |
6425 | phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); | |
6426 | /* Round robin FCP Work Queue's Completion Queue assignment */ | |
6427 | fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count); | |
6428 | } | |
6429 | ||
6430 | /* | |
6431 | * Create Receive Queue (RQ) | |
6432 | */ | |
6433 | if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { | |
6434 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6435 | "0540 Receive Queue not allocated\n"); | |
6436 | goto out_destroy_fcp_wq; | |
6437 | } | |
6438 | rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, | |
6439 | phba->sli4_hba.els_cq, LPFC_USOL); | |
6440 | if (rc) { | |
6441 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6442 | "0541 Failed setup of Receive Queue: " | |
6443 | "rc = 0x%x\n", rc); | |
6444 | goto out_destroy_fcp_wq; | |
6445 | } | |
6446 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
6447 | "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " | |
6448 | "parent cq-id=%d\n", | |
6449 | phba->sli4_hba.hdr_rq->queue_id, | |
6450 | phba->sli4_hba.dat_rq->queue_id, | |
6451 | phba->sli4_hba.els_cq->queue_id); | |
6452 | return 0; | |
6453 | ||
6454 | out_destroy_fcp_wq: | |
6455 | for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) | |
6456 | lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); | |
6457 | lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); | |
6458 | out_destroy_mbx_wq: | |
6459 | lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); | |
6460 | out_destroy_fcp_cq: | |
6461 | for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) | |
6462 | lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); | |
6463 | lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); | |
6464 | out_destroy_mbx_cq: | |
6465 | lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); | |
6466 | out_destroy_fp_eq: | |
6467 | for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) | |
6468 | lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); | |
6469 | lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); | |
6470 | out_error: | |
6471 | return rc; | |
6472 | } | |
6473 | ||
6474 | /** | |
6475 | * lpfc_sli4_queue_unset - Unset all the SLI4 queues | |
6476 | * @phba: pointer to lpfc hba data structure. | |
6477 | * | |
6478 | * This routine is invoked to unset all the SLI4 queues with the FCoE HBA | |
6479 | * operation. | |
6480 | * | |
6481 | * Return codes | |
6482 | * 0 - successful | |
6483 | * -ENOMEM - No availble memory | |
6484 | * -EIO - The mailbox failed to complete successfully. | |
6485 | **/ | |
6486 | void | |
6487 | lpfc_sli4_queue_unset(struct lpfc_hba *phba) | |
6488 | { | |
6489 | int fcp_qidx; | |
6490 | ||
6491 | /* Unset mailbox command work queue */ | |
6492 | lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); | |
6493 | /* Unset ELS work queue */ | |
6494 | lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); | |
6495 | /* Unset unsolicited receive queue */ | |
6496 | lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); | |
6497 | /* Unset FCP work queue */ | |
6498 | for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) | |
6499 | lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); | |
6500 | /* Unset mailbox command complete queue */ | |
6501 | lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); | |
6502 | /* Unset ELS complete queue */ | |
6503 | lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); | |
6504 | /* Unset FCP response complete queue */ | |
6505 | for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) | |
6506 | lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); | |
6507 | /* Unset fast-path event queue */ | |
6508 | for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) | |
6509 | lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); | |
6510 | /* Unset slow-path event queue */ | |
6511 | lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); | |
6512 | } | |
6513 | ||
6514 | /** | |
6515 | * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool | |
6516 | * @phba: pointer to lpfc hba data structure. | |
6517 | * | |
6518 | * This routine is invoked to allocate and set up a pool of completion queue | |
6519 | * events. The body of the completion queue event is a completion queue entry | |
6520 | * CQE. For now, this pool is used for the interrupt service routine to queue | |
6521 | * the following HBA completion queue events for the worker thread to process: | |
6522 | * - Mailbox asynchronous events | |
6523 | * - Receive queue completion unsolicited events | |
6524 | * Later, this can be used for all the slow-path events. | |
6525 | * | |
6526 | * Return codes | |
6527 | * 0 - successful | |
6528 | * -ENOMEM - No availble memory | |
6529 | **/ | |
6530 | static int | |
6531 | lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) | |
6532 | { | |
6533 | struct lpfc_cq_event *cq_event; | |
6534 | int i; | |
6535 | ||
6536 | for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { | |
6537 | cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); | |
6538 | if (!cq_event) | |
6539 | goto out_pool_create_fail; | |
6540 | list_add_tail(&cq_event->list, | |
6541 | &phba->sli4_hba.sp_cqe_event_pool); | |
6542 | } | |
6543 | return 0; | |
6544 | ||
6545 | out_pool_create_fail: | |
6546 | lpfc_sli4_cq_event_pool_destroy(phba); | |
6547 | return -ENOMEM; | |
6548 | } | |
6549 | ||
6550 | /** | |
6551 | * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool | |
6552 | * @phba: pointer to lpfc hba data structure. | |
6553 | * | |
6554 | * This routine is invoked to free the pool of completion queue events at | |
6555 | * driver unload time. Note that, it is the responsibility of the driver | |
6556 | * cleanup routine to free all the outstanding completion-queue events | |
6557 | * allocated from this pool back into the pool before invoking this routine | |
6558 | * to destroy the pool. | |
6559 | **/ | |
6560 | static void | |
6561 | lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) | |
6562 | { | |
6563 | struct lpfc_cq_event *cq_event, *next_cq_event; | |
6564 | ||
6565 | list_for_each_entry_safe(cq_event, next_cq_event, | |
6566 | &phba->sli4_hba.sp_cqe_event_pool, list) { | |
6567 | list_del(&cq_event->list); | |
6568 | kfree(cq_event); | |
6569 | } | |
6570 | } | |
6571 | ||
6572 | /** | |
6573 | * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool | |
6574 | * @phba: pointer to lpfc hba data structure. | |
6575 | * | |
6576 | * This routine is the lock free version of the API invoked to allocate a | |
6577 | * completion-queue event from the free pool. | |
6578 | * | |
6579 | * Return: Pointer to the newly allocated completion-queue event if successful | |
6580 | * NULL otherwise. | |
6581 | **/ | |
6582 | struct lpfc_cq_event * | |
6583 | __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) | |
6584 | { | |
6585 | struct lpfc_cq_event *cq_event = NULL; | |
6586 | ||
6587 | list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, | |
6588 | struct lpfc_cq_event, list); | |
6589 | return cq_event; | |
6590 | } | |
6591 | ||
6592 | /** | |
6593 | * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool | |
6594 | * @phba: pointer to lpfc hba data structure. | |
6595 | * | |
6596 | * This routine is the lock version of the API invoked to allocate a | |
6597 | * completion-queue event from the free pool. | |
6598 | * | |
6599 | * Return: Pointer to the newly allocated completion-queue event if successful | |
6600 | * NULL otherwise. | |
6601 | **/ | |
6602 | struct lpfc_cq_event * | |
6603 | lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) | |
6604 | { | |
6605 | struct lpfc_cq_event *cq_event; | |
6606 | unsigned long iflags; | |
6607 | ||
6608 | spin_lock_irqsave(&phba->hbalock, iflags); | |
6609 | cq_event = __lpfc_sli4_cq_event_alloc(phba); | |
6610 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
6611 | return cq_event; | |
6612 | } | |
6613 | ||
6614 | /** | |
6615 | * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool | |
6616 | * @phba: pointer to lpfc hba data structure. | |
6617 | * @cq_event: pointer to the completion queue event to be freed. | |
6618 | * | |
6619 | * This routine is the lock free version of the API invoked to release a | |
6620 | * completion-queue event back into the free pool. | |
6621 | **/ | |
6622 | void | |
6623 | __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, | |
6624 | struct lpfc_cq_event *cq_event) | |
6625 | { | |
6626 | list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); | |
6627 | } | |
6628 | ||
6629 | /** | |
6630 | * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool | |
6631 | * @phba: pointer to lpfc hba data structure. | |
6632 | * @cq_event: pointer to the completion queue event to be freed. | |
6633 | * | |
6634 | * This routine is the lock version of the API invoked to release a | |
6635 | * completion-queue event back into the free pool. | |
6636 | **/ | |
6637 | void | |
6638 | lpfc_sli4_cq_event_release(struct lpfc_hba *phba, | |
6639 | struct lpfc_cq_event *cq_event) | |
6640 | { | |
6641 | unsigned long iflags; | |
6642 | spin_lock_irqsave(&phba->hbalock, iflags); | |
6643 | __lpfc_sli4_cq_event_release(phba, cq_event); | |
6644 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
6645 | } | |
6646 | ||
6647 | /** | |
6648 | * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool | |
6649 | * @phba: pointer to lpfc hba data structure. | |
6650 | * | |
6651 | * This routine is to free all the pending completion-queue events to the | |
6652 | * back into the free pool for device reset. | |
6653 | **/ | |
6654 | static void | |
6655 | lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) | |
6656 | { | |
6657 | LIST_HEAD(cqelist); | |
6658 | struct lpfc_cq_event *cqe; | |
6659 | unsigned long iflags; | |
6660 | ||
6661 | /* Retrieve all the pending WCQEs from pending WCQE lists */ | |
6662 | spin_lock_irqsave(&phba->hbalock, iflags); | |
6663 | /* Pending FCP XRI abort events */ | |
6664 | list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, | |
6665 | &cqelist); | |
6666 | /* Pending ELS XRI abort events */ | |
6667 | list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, | |
6668 | &cqelist); | |
6669 | /* Pending asynnc events */ | |
6670 | list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, | |
6671 | &cqelist); | |
6672 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
6673 | ||
6674 | while (!list_empty(&cqelist)) { | |
6675 | list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); | |
6676 | lpfc_sli4_cq_event_release(phba, cqe); | |
6677 | } | |
6678 | } | |
6679 | ||
6680 | /** | |
6681 | * lpfc_pci_function_reset - Reset pci function. | |
6682 | * @phba: pointer to lpfc hba data structure. | |
6683 | * | |
6684 | * This routine is invoked to request a PCI function reset. It will destroys | |
6685 | * all resources assigned to the PCI function which originates this request. | |
6686 | * | |
6687 | * Return codes | |
6688 | * 0 - successful | |
6689 | * -ENOMEM - No availble memory | |
6690 | * -EIO - The mailbox failed to complete successfully. | |
6691 | **/ | |
6692 | int | |
6693 | lpfc_pci_function_reset(struct lpfc_hba *phba) | |
6694 | { | |
6695 | LPFC_MBOXQ_t *mboxq; | |
6696 | uint32_t rc = 0, if_type; | |
6697 | uint32_t shdr_status, shdr_add_status; | |
6698 | uint32_t rdy_chk, num_resets = 0, reset_again = 0; | |
6699 | union lpfc_sli4_cfg_shdr *shdr; | |
6700 | struct lpfc_register reg_data; | |
6701 | ||
6702 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); | |
6703 | switch (if_type) { | |
6704 | case LPFC_SLI_INTF_IF_TYPE_0: | |
6705 | mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, | |
6706 | GFP_KERNEL); | |
6707 | if (!mboxq) { | |
6708 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6709 | "0494 Unable to allocate memory for " | |
6710 | "issuing SLI_FUNCTION_RESET mailbox " | |
6711 | "command\n"); | |
6712 | return -ENOMEM; | |
6713 | } | |
6714 | ||
6715 | /* Setup PCI function reset mailbox-ioctl command */ | |
6716 | lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, | |
6717 | LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, | |
6718 | LPFC_SLI4_MBX_EMBED); | |
6719 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
6720 | shdr = (union lpfc_sli4_cfg_shdr *) | |
6721 | &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; | |
6722 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
6723 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, | |
6724 | &shdr->response); | |
6725 | if (rc != MBX_TIMEOUT) | |
6726 | mempool_free(mboxq, phba->mbox_mem_pool); | |
6727 | if (shdr_status || shdr_add_status || rc) { | |
6728 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6729 | "0495 SLI_FUNCTION_RESET mailbox " | |
6730 | "failed with status x%x add_status x%x," | |
6731 | " mbx status x%x\n", | |
6732 | shdr_status, shdr_add_status, rc); | |
6733 | rc = -ENXIO; | |
6734 | } | |
6735 | break; | |
6736 | case LPFC_SLI_INTF_IF_TYPE_2: | |
6737 | for (num_resets = 0; | |
6738 | num_resets < MAX_IF_TYPE_2_RESETS; | |
6739 | num_resets++) { | |
6740 | reg_data.word0 = 0; | |
6741 | bf_set(lpfc_sliport_ctrl_end, ®_data, | |
6742 | LPFC_SLIPORT_LITTLE_ENDIAN); | |
6743 | bf_set(lpfc_sliport_ctrl_ip, ®_data, | |
6744 | LPFC_SLIPORT_INIT_PORT); | |
6745 | writel(reg_data.word0, phba->sli4_hba.u.if_type2. | |
6746 | CTRLregaddr); | |
6747 | ||
6748 | /* | |
6749 | * Poll the Port Status Register and wait for RDY for | |
6750 | * up to 10 seconds. If the port doesn't respond, treat | |
6751 | * it as an error. If the port responds with RN, start | |
6752 | * the loop again. | |
6753 | */ | |
6754 | for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { | |
6755 | reg_data.word0 = | |
6756 | readl(phba->sli4_hba.u.if_type2. | |
6757 | STATUSregaddr); | |
6758 | if (bf_get(lpfc_sliport_status_rdy, ®_data)) | |
6759 | break; | |
6760 | if (bf_get(lpfc_sliport_status_rn, ®_data)) { | |
6761 | reset_again++; | |
6762 | break; | |
6763 | } | |
6764 | msleep(10); | |
6765 | } | |
6766 | ||
6767 | /* | |
6768 | * If the port responds to the init request with | |
6769 | * reset needed, delay for a bit and restart the loop. | |
6770 | */ | |
6771 | if (reset_again) { | |
6772 | msleep(10); | |
6773 | reset_again = 0; | |
6774 | continue; | |
6775 | } | |
6776 | ||
6777 | /* Detect any port errors. */ | |
6778 | reg_data.word0 = readl(phba->sli4_hba.u.if_type2. | |
6779 | STATUSregaddr); | |
6780 | if ((bf_get(lpfc_sliport_status_err, ®_data)) || | |
6781 | (rdy_chk >= 1000)) { | |
6782 | phba->work_status[0] = readl( | |
6783 | phba->sli4_hba.u.if_type2.ERR1regaddr); | |
6784 | phba->work_status[1] = readl( | |
6785 | phba->sli4_hba.u.if_type2.ERR2regaddr); | |
6786 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6787 | "2890 Port Error Detected " | |
6788 | "during Port Reset: " | |
6789 | "port status reg 0x%x, " | |
6790 | "error 1=0x%x, error 2=0x%x\n", | |
6791 | reg_data.word0, | |
6792 | phba->work_status[0], | |
6793 | phba->work_status[1]); | |
6794 | rc = -ENODEV; | |
6795 | } | |
6796 | ||
6797 | /* | |
6798 | * Terminate the outer loop provided the Port indicated | |
6799 | * ready within 10 seconds. | |
6800 | */ | |
6801 | if (rdy_chk < 1000) | |
6802 | break; | |
6803 | } | |
6804 | break; | |
6805 | case LPFC_SLI_INTF_IF_TYPE_1: | |
6806 | default: | |
6807 | break; | |
6808 | } | |
6809 | ||
6810 | /* Catch the not-ready port failure after a port reset. */ | |
6811 | if (num_resets >= MAX_IF_TYPE_2_RESETS) | |
6812 | rc = -ENODEV; | |
6813 | ||
6814 | return rc; | |
6815 | } | |
6816 | ||
6817 | /** | |
6818 | * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands | |
6819 | * @phba: pointer to lpfc hba data structure. | |
6820 | * @cnt: number of nop mailbox commands to send. | |
6821 | * | |
6822 | * This routine is invoked to send a number @cnt of NOP mailbox command and | |
6823 | * wait for each command to complete. | |
6824 | * | |
6825 | * Return: the number of NOP mailbox command completed. | |
6826 | **/ | |
6827 | static int | |
6828 | lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) | |
6829 | { | |
6830 | LPFC_MBOXQ_t *mboxq; | |
6831 | int length, cmdsent; | |
6832 | uint32_t mbox_tmo; | |
6833 | uint32_t rc = 0; | |
6834 | uint32_t shdr_status, shdr_add_status; | |
6835 | union lpfc_sli4_cfg_shdr *shdr; | |
6836 | ||
6837 | if (cnt == 0) { | |
6838 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
6839 | "2518 Requested to send 0 NOP mailbox cmd\n"); | |
6840 | return cnt; | |
6841 | } | |
6842 | ||
6843 | mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
6844 | if (!mboxq) { | |
6845 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6846 | "2519 Unable to allocate memory for issuing " | |
6847 | "NOP mailbox command\n"); | |
6848 | return 0; | |
6849 | } | |
6850 | ||
6851 | /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ | |
6852 | length = (sizeof(struct lpfc_mbx_nop) - | |
6853 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
6854 | lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, | |
6855 | LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); | |
6856 | ||
6857 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); | |
6858 | for (cmdsent = 0; cmdsent < cnt; cmdsent++) { | |
6859 | if (!phba->sli4_hba.intr_enable) | |
6860 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
6861 | else | |
6862 | rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); | |
6863 | if (rc == MBX_TIMEOUT) | |
6864 | break; | |
6865 | /* Check return status */ | |
6866 | shdr = (union lpfc_sli4_cfg_shdr *) | |
6867 | &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; | |
6868 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
6869 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, | |
6870 | &shdr->response); | |
6871 | if (shdr_status || shdr_add_status || rc) { | |
6872 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
6873 | "2520 NOP mailbox command failed " | |
6874 | "status x%x add_status x%x mbx " | |
6875 | "status x%x\n", shdr_status, | |
6876 | shdr_add_status, rc); | |
6877 | break; | |
6878 | } | |
6879 | } | |
6880 | ||
6881 | if (rc != MBX_TIMEOUT) | |
6882 | mempool_free(mboxq, phba->mbox_mem_pool); | |
6883 | ||
6884 | return cmdsent; | |
6885 | } | |
6886 | ||
6887 | /** | |
6888 | * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. | |
6889 | * @phba: pointer to lpfc hba data structure. | |
6890 | * | |
6891 | * This routine is invoked to set up the PCI device memory space for device | |
6892 | * with SLI-4 interface spec. | |
6893 | * | |
6894 | * Return codes | |
6895 | * 0 - successful | |
6896 | * other values - error | |
6897 | **/ | |
6898 | static int | |
6899 | lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) | |
6900 | { | |
6901 | struct pci_dev *pdev; | |
6902 | unsigned long bar0map_len, bar1map_len, bar2map_len; | |
6903 | int error = -ENODEV; | |
6904 | uint32_t if_type; | |
6905 | ||
6906 | /* Obtain PCI device reference */ | |
6907 | if (!phba->pcidev) | |
6908 | return error; | |
6909 | else | |
6910 | pdev = phba->pcidev; | |
6911 | ||
6912 | /* Set the device DMA mask size */ | |
6913 | if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 | |
6914 | || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { | |
6915 | if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 | |
6916 | || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { | |
6917 | return error; | |
6918 | } | |
6919 | } | |
6920 | ||
6921 | /* | |
6922 | * The BARs and register set definitions and offset locations are | |
6923 | * dependent on the if_type. | |
6924 | */ | |
6925 | if (pci_read_config_dword(pdev, LPFC_SLI_INTF, | |
6926 | &phba->sli4_hba.sli_intf.word0)) { | |
6927 | return error; | |
6928 | } | |
6929 | ||
6930 | /* There is no SLI3 failback for SLI4 devices. */ | |
6931 | if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != | |
6932 | LPFC_SLI_INTF_VALID) { | |
6933 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6934 | "2894 SLI_INTF reg contents invalid " | |
6935 | "sli_intf reg 0x%x\n", | |
6936 | phba->sli4_hba.sli_intf.word0); | |
6937 | return error; | |
6938 | } | |
6939 | ||
6940 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); | |
6941 | /* | |
6942 | * Get the bus address of SLI4 device Bar regions and the | |
6943 | * number of bytes required by each mapping. The mapping of the | |
6944 | * particular PCI BARs regions is dependent on the type of | |
6945 | * SLI4 device. | |
6946 | */ | |
6947 | if (pci_resource_start(pdev, 0)) { | |
6948 | phba->pci_bar0_map = pci_resource_start(pdev, 0); | |
6949 | bar0map_len = pci_resource_len(pdev, 0); | |
6950 | ||
6951 | /* | |
6952 | * Map SLI4 PCI Config Space Register base to a kernel virtual | |
6953 | * addr | |
6954 | */ | |
6955 | phba->sli4_hba.conf_regs_memmap_p = | |
6956 | ioremap(phba->pci_bar0_map, bar0map_len); | |
6957 | if (!phba->sli4_hba.conf_regs_memmap_p) { | |
6958 | dev_printk(KERN_ERR, &pdev->dev, | |
6959 | "ioremap failed for SLI4 PCI config " | |
6960 | "registers.\n"); | |
6961 | goto out; | |
6962 | } | |
6963 | /* Set up BAR0 PCI config space register memory map */ | |
6964 | lpfc_sli4_bar0_register_memmap(phba, if_type); | |
6965 | } else { | |
6966 | phba->pci_bar0_map = pci_resource_start(pdev, 1); | |
6967 | bar0map_len = pci_resource_len(pdev, 1); | |
6968 | if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { | |
6969 | dev_printk(KERN_ERR, &pdev->dev, | |
6970 | "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); | |
6971 | goto out; | |
6972 | } | |
6973 | phba->sli4_hba.conf_regs_memmap_p = | |
6974 | ioremap(phba->pci_bar0_map, bar0map_len); | |
6975 | if (!phba->sli4_hba.conf_regs_memmap_p) { | |
6976 | dev_printk(KERN_ERR, &pdev->dev, | |
6977 | "ioremap failed for SLI4 PCI config " | |
6978 | "registers.\n"); | |
6979 | goto out; | |
6980 | } | |
6981 | lpfc_sli4_bar0_register_memmap(phba, if_type); | |
6982 | } | |
6983 | ||
6984 | if (pci_resource_start(pdev, 2)) { | |
6985 | /* | |
6986 | * Map SLI4 if type 0 HBA Control Register base to a kernel | |
6987 | * virtual address and setup the registers. | |
6988 | */ | |
6989 | phba->pci_bar1_map = pci_resource_start(pdev, 2); | |
6990 | bar1map_len = pci_resource_len(pdev, 2); | |
6991 | phba->sli4_hba.ctrl_regs_memmap_p = | |
6992 | ioremap(phba->pci_bar1_map, bar1map_len); | |
6993 | if (!phba->sli4_hba.ctrl_regs_memmap_p) { | |
6994 | dev_printk(KERN_ERR, &pdev->dev, | |
6995 | "ioremap failed for SLI4 HBA control registers.\n"); | |
6996 | goto out_iounmap_conf; | |
6997 | } | |
6998 | lpfc_sli4_bar1_register_memmap(phba); | |
6999 | } | |
7000 | ||
7001 | if (pci_resource_start(pdev, 4)) { | |
7002 | /* | |
7003 | * Map SLI4 if type 0 HBA Doorbell Register base to a kernel | |
7004 | * virtual address and setup the registers. | |
7005 | */ | |
7006 | phba->pci_bar2_map = pci_resource_start(pdev, 4); | |
7007 | bar2map_len = pci_resource_len(pdev, 4); | |
7008 | phba->sli4_hba.drbl_regs_memmap_p = | |
7009 | ioremap(phba->pci_bar2_map, bar2map_len); | |
7010 | if (!phba->sli4_hba.drbl_regs_memmap_p) { | |
7011 | dev_printk(KERN_ERR, &pdev->dev, | |
7012 | "ioremap failed for SLI4 HBA doorbell registers.\n"); | |
7013 | goto out_iounmap_ctrl; | |
7014 | } | |
7015 | error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); | |
7016 | if (error) | |
7017 | goto out_iounmap_all; | |
7018 | } | |
7019 | ||
7020 | return 0; | |
7021 | ||
7022 | out_iounmap_all: | |
7023 | iounmap(phba->sli4_hba.drbl_regs_memmap_p); | |
7024 | out_iounmap_ctrl: | |
7025 | iounmap(phba->sli4_hba.ctrl_regs_memmap_p); | |
7026 | out_iounmap_conf: | |
7027 | iounmap(phba->sli4_hba.conf_regs_memmap_p); | |
7028 | out: | |
7029 | return error; | |
7030 | } | |
7031 | ||
7032 | /** | |
7033 | * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. | |
7034 | * @phba: pointer to lpfc hba data structure. | |
7035 | * | |
7036 | * This routine is invoked to unset the PCI device memory space for device | |
7037 | * with SLI-4 interface spec. | |
7038 | **/ | |
7039 | static void | |
7040 | lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) | |
7041 | { | |
7042 | struct pci_dev *pdev; | |
7043 | ||
7044 | /* Obtain PCI device reference */ | |
7045 | if (!phba->pcidev) | |
7046 | return; | |
7047 | else | |
7048 | pdev = phba->pcidev; | |
7049 | ||
7050 | /* Free coherent DMA memory allocated */ | |
7051 | ||
7052 | /* Unmap I/O memory space */ | |
7053 | iounmap(phba->sli4_hba.drbl_regs_memmap_p); | |
7054 | iounmap(phba->sli4_hba.ctrl_regs_memmap_p); | |
7055 | iounmap(phba->sli4_hba.conf_regs_memmap_p); | |
7056 | ||
7057 | return; | |
7058 | } | |
7059 | ||
7060 | /** | |
7061 | * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device | |
7062 | * @phba: pointer to lpfc hba data structure. | |
7063 | * | |
7064 | * This routine is invoked to enable the MSI-X interrupt vectors to device | |
7065 | * with SLI-3 interface specs. The kernel function pci_enable_msix() is | |
7066 | * called to enable the MSI-X vectors. Note that pci_enable_msix(), once | |
7067 | * invoked, enables either all or nothing, depending on the current | |
7068 | * availability of PCI vector resources. The device driver is responsible | |
7069 | * for calling the individual request_irq() to register each MSI-X vector | |
7070 | * with a interrupt handler, which is done in this function. Note that | |
7071 | * later when device is unloading, the driver should always call free_irq() | |
7072 | * on all MSI-X vectors it has done request_irq() on before calling | |
7073 | * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device | |
7074 | * will be left with MSI-X enabled and leaks its vectors. | |
7075 | * | |
7076 | * Return codes | |
7077 | * 0 - successful | |
7078 | * other values - error | |
7079 | **/ | |
7080 | static int | |
7081 | lpfc_sli_enable_msix(struct lpfc_hba *phba) | |
7082 | { | |
7083 | int rc, i; | |
7084 | LPFC_MBOXQ_t *pmb; | |
7085 | ||
7086 | /* Set up MSI-X multi-message vectors */ | |
7087 | for (i = 0; i < LPFC_MSIX_VECTORS; i++) | |
7088 | phba->msix_entries[i].entry = i; | |
7089 | ||
7090 | /* Configure MSI-X capability structure */ | |
7091 | rc = pci_enable_msix(phba->pcidev, phba->msix_entries, | |
7092 | ARRAY_SIZE(phba->msix_entries)); | |
7093 | if (rc) { | |
7094 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7095 | "0420 PCI enable MSI-X failed (%d)\n", rc); | |
7096 | goto msi_fail_out; | |
7097 | } | |
7098 | for (i = 0; i < LPFC_MSIX_VECTORS; i++) | |
7099 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7100 | "0477 MSI-X entry[%d]: vector=x%x " | |
7101 | "message=%d\n", i, | |
7102 | phba->msix_entries[i].vector, | |
7103 | phba->msix_entries[i].entry); | |
7104 | /* | |
7105 | * Assign MSI-X vectors to interrupt handlers | |
7106 | */ | |
7107 | ||
7108 | /* vector-0 is associated to slow-path handler */ | |
7109 | rc = request_irq(phba->msix_entries[0].vector, | |
7110 | &lpfc_sli_sp_intr_handler, IRQF_SHARED, | |
7111 | LPFC_SP_DRIVER_HANDLER_NAME, phba); | |
7112 | if (rc) { | |
7113 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
7114 | "0421 MSI-X slow-path request_irq failed " | |
7115 | "(%d)\n", rc); | |
7116 | goto msi_fail_out; | |
7117 | } | |
7118 | ||
7119 | /* vector-1 is associated to fast-path handler */ | |
7120 | rc = request_irq(phba->msix_entries[1].vector, | |
7121 | &lpfc_sli_fp_intr_handler, IRQF_SHARED, | |
7122 | LPFC_FP_DRIVER_HANDLER_NAME, phba); | |
7123 | ||
7124 | if (rc) { | |
7125 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
7126 | "0429 MSI-X fast-path request_irq failed " | |
7127 | "(%d)\n", rc); | |
7128 | goto irq_fail_out; | |
7129 | } | |
7130 | ||
7131 | /* | |
7132 | * Configure HBA MSI-X attention conditions to messages | |
7133 | */ | |
7134 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
7135 | ||
7136 | if (!pmb) { | |
7137 | rc = -ENOMEM; | |
7138 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7139 | "0474 Unable to allocate memory for issuing " | |
7140 | "MBOX_CONFIG_MSI command\n"); | |
7141 | goto mem_fail_out; | |
7142 | } | |
7143 | rc = lpfc_config_msi(phba, pmb); | |
7144 | if (rc) | |
7145 | goto mbx_fail_out; | |
7146 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
7147 | if (rc != MBX_SUCCESS) { | |
7148 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, | |
7149 | "0351 Config MSI mailbox command failed, " | |
7150 | "mbxCmd x%x, mbxStatus x%x\n", | |
7151 | pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); | |
7152 | goto mbx_fail_out; | |
7153 | } | |
7154 | ||
7155 | /* Free memory allocated for mailbox command */ | |
7156 | mempool_free(pmb, phba->mbox_mem_pool); | |
7157 | return rc; | |
7158 | ||
7159 | mbx_fail_out: | |
7160 | /* Free memory allocated for mailbox command */ | |
7161 | mempool_free(pmb, phba->mbox_mem_pool); | |
7162 | ||
7163 | mem_fail_out: | |
7164 | /* free the irq already requested */ | |
7165 | free_irq(phba->msix_entries[1].vector, phba); | |
7166 | ||
7167 | irq_fail_out: | |
7168 | /* free the irq already requested */ | |
7169 | free_irq(phba->msix_entries[0].vector, phba); | |
7170 | ||
7171 | msi_fail_out: | |
7172 | /* Unconfigure MSI-X capability structure */ | |
7173 | pci_disable_msix(phba->pcidev); | |
7174 | return rc; | |
7175 | } | |
7176 | ||
7177 | /** | |
7178 | * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. | |
7179 | * @phba: pointer to lpfc hba data structure. | |
7180 | * | |
7181 | * This routine is invoked to release the MSI-X vectors and then disable the | |
7182 | * MSI-X interrupt mode to device with SLI-3 interface spec. | |
7183 | **/ | |
7184 | static void | |
7185 | lpfc_sli_disable_msix(struct lpfc_hba *phba) | |
7186 | { | |
7187 | int i; | |
7188 | ||
7189 | /* Free up MSI-X multi-message vectors */ | |
7190 | for (i = 0; i < LPFC_MSIX_VECTORS; i++) | |
7191 | free_irq(phba->msix_entries[i].vector, phba); | |
7192 | /* Disable MSI-X */ | |
7193 | pci_disable_msix(phba->pcidev); | |
7194 | ||
7195 | return; | |
7196 | } | |
7197 | ||
7198 | /** | |
7199 | * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. | |
7200 | * @phba: pointer to lpfc hba data structure. | |
7201 | * | |
7202 | * This routine is invoked to enable the MSI interrupt mode to device with | |
7203 | * SLI-3 interface spec. The kernel function pci_enable_msi() is called to | |
7204 | * enable the MSI vector. The device driver is responsible for calling the | |
7205 | * request_irq() to register MSI vector with a interrupt the handler, which | |
7206 | * is done in this function. | |
7207 | * | |
7208 | * Return codes | |
7209 | * 0 - successful | |
7210 | * other values - error | |
7211 | */ | |
7212 | static int | |
7213 | lpfc_sli_enable_msi(struct lpfc_hba *phba) | |
7214 | { | |
7215 | int rc; | |
7216 | ||
7217 | rc = pci_enable_msi(phba->pcidev); | |
7218 | if (!rc) | |
7219 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7220 | "0462 PCI enable MSI mode success.\n"); | |
7221 | else { | |
7222 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7223 | "0471 PCI enable MSI mode failed (%d)\n", rc); | |
7224 | return rc; | |
7225 | } | |
7226 | ||
7227 | rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, | |
7228 | IRQF_SHARED, LPFC_DRIVER_NAME, phba); | |
7229 | if (rc) { | |
7230 | pci_disable_msi(phba->pcidev); | |
7231 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
7232 | "0478 MSI request_irq failed (%d)\n", rc); | |
7233 | } | |
7234 | return rc; | |
7235 | } | |
7236 | ||
7237 | /** | |
7238 | * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. | |
7239 | * @phba: pointer to lpfc hba data structure. | |
7240 | * | |
7241 | * This routine is invoked to disable the MSI interrupt mode to device with | |
7242 | * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has | |
7243 | * done request_irq() on before calling pci_disable_msi(). Failure to do so | |
7244 | * results in a BUG_ON() and a device will be left with MSI enabled and leaks | |
7245 | * its vector. | |
7246 | */ | |
7247 | static void | |
7248 | lpfc_sli_disable_msi(struct lpfc_hba *phba) | |
7249 | { | |
7250 | free_irq(phba->pcidev->irq, phba); | |
7251 | pci_disable_msi(phba->pcidev); | |
7252 | return; | |
7253 | } | |
7254 | ||
7255 | /** | |
7256 | * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. | |
7257 | * @phba: pointer to lpfc hba data structure. | |
7258 | * | |
7259 | * This routine is invoked to enable device interrupt and associate driver's | |
7260 | * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface | |
7261 | * spec. Depends on the interrupt mode configured to the driver, the driver | |
7262 | * will try to fallback from the configured interrupt mode to an interrupt | |
7263 | * mode which is supported by the platform, kernel, and device in the order | |
7264 | * of: | |
7265 | * MSI-X -> MSI -> IRQ. | |
7266 | * | |
7267 | * Return codes | |
7268 | * 0 - successful | |
7269 | * other values - error | |
7270 | **/ | |
7271 | static uint32_t | |
7272 | lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) | |
7273 | { | |
7274 | uint32_t intr_mode = LPFC_INTR_ERROR; | |
7275 | int retval; | |
7276 | ||
7277 | if (cfg_mode == 2) { | |
7278 | /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ | |
7279 | retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); | |
7280 | if (!retval) { | |
7281 | /* Now, try to enable MSI-X interrupt mode */ | |
7282 | retval = lpfc_sli_enable_msix(phba); | |
7283 | if (!retval) { | |
7284 | /* Indicate initialization to MSI-X mode */ | |
7285 | phba->intr_type = MSIX; | |
7286 | intr_mode = 2; | |
7287 | } | |
7288 | } | |
7289 | } | |
7290 | ||
7291 | /* Fallback to MSI if MSI-X initialization failed */ | |
7292 | if (cfg_mode >= 1 && phba->intr_type == NONE) { | |
7293 | retval = lpfc_sli_enable_msi(phba); | |
7294 | if (!retval) { | |
7295 | /* Indicate initialization to MSI mode */ | |
7296 | phba->intr_type = MSI; | |
7297 | intr_mode = 1; | |
7298 | } | |
7299 | } | |
7300 | ||
7301 | /* Fallback to INTx if both MSI-X/MSI initalization failed */ | |
7302 | if (phba->intr_type == NONE) { | |
7303 | retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, | |
7304 | IRQF_SHARED, LPFC_DRIVER_NAME, phba); | |
7305 | if (!retval) { | |
7306 | /* Indicate initialization to INTx mode */ | |
7307 | phba->intr_type = INTx; | |
7308 | intr_mode = 0; | |
7309 | } | |
7310 | } | |
7311 | return intr_mode; | |
7312 | } | |
7313 | ||
7314 | /** | |
7315 | * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. | |
7316 | * @phba: pointer to lpfc hba data structure. | |
7317 | * | |
7318 | * This routine is invoked to disable device interrupt and disassociate the | |
7319 | * driver's interrupt handler(s) from interrupt vector(s) to device with | |
7320 | * SLI-3 interface spec. Depending on the interrupt mode, the driver will | |
7321 | * release the interrupt vector(s) for the message signaled interrupt. | |
7322 | **/ | |
7323 | static void | |
7324 | lpfc_sli_disable_intr(struct lpfc_hba *phba) | |
7325 | { | |
7326 | /* Disable the currently initialized interrupt mode */ | |
7327 | if (phba->intr_type == MSIX) | |
7328 | lpfc_sli_disable_msix(phba); | |
7329 | else if (phba->intr_type == MSI) | |
7330 | lpfc_sli_disable_msi(phba); | |
7331 | else if (phba->intr_type == INTx) | |
7332 | free_irq(phba->pcidev->irq, phba); | |
7333 | ||
7334 | /* Reset interrupt management states */ | |
7335 | phba->intr_type = NONE; | |
7336 | phba->sli.slistat.sli_intr = 0; | |
7337 | ||
7338 | return; | |
7339 | } | |
7340 | ||
7341 | /** | |
7342 | * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device | |
7343 | * @phba: pointer to lpfc hba data structure. | |
7344 | * | |
7345 | * This routine is invoked to enable the MSI-X interrupt vectors to device | |
7346 | * with SLI-4 interface spec. The kernel function pci_enable_msix() is called | |
7347 | * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, | |
7348 | * enables either all or nothing, depending on the current availability of | |
7349 | * PCI vector resources. The device driver is responsible for calling the | |
7350 | * individual request_irq() to register each MSI-X vector with a interrupt | |
7351 | * handler, which is done in this function. Note that later when device is | |
7352 | * unloading, the driver should always call free_irq() on all MSI-X vectors | |
7353 | * it has done request_irq() on before calling pci_disable_msix(). Failure | |
7354 | * to do so results in a BUG_ON() and a device will be left with MSI-X | |
7355 | * enabled and leaks its vectors. | |
7356 | * | |
7357 | * Return codes | |
7358 | * 0 - successful | |
7359 | * other values - error | |
7360 | **/ | |
7361 | static int | |
7362 | lpfc_sli4_enable_msix(struct lpfc_hba *phba) | |
7363 | { | |
7364 | int vectors, rc, index; | |
7365 | ||
7366 | /* Set up MSI-X multi-message vectors */ | |
7367 | for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) | |
7368 | phba->sli4_hba.msix_entries[index].entry = index; | |
7369 | ||
7370 | /* Configure MSI-X capability structure */ | |
7371 | vectors = phba->sli4_hba.cfg_eqn; | |
7372 | enable_msix_vectors: | |
7373 | rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, | |
7374 | vectors); | |
7375 | if (rc > 1) { | |
7376 | vectors = rc; | |
7377 | goto enable_msix_vectors; | |
7378 | } else if (rc) { | |
7379 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7380 | "0484 PCI enable MSI-X failed (%d)\n", rc); | |
7381 | goto msi_fail_out; | |
7382 | } | |
7383 | ||
7384 | /* Log MSI-X vector assignment */ | |
7385 | for (index = 0; index < vectors; index++) | |
7386 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7387 | "0489 MSI-X entry[%d]: vector=x%x " | |
7388 | "message=%d\n", index, | |
7389 | phba->sli4_hba.msix_entries[index].vector, | |
7390 | phba->sli4_hba.msix_entries[index].entry); | |
7391 | /* | |
7392 | * Assign MSI-X vectors to interrupt handlers | |
7393 | */ | |
7394 | ||
7395 | /* The first vector must associated to slow-path handler for MQ */ | |
7396 | rc = request_irq(phba->sli4_hba.msix_entries[0].vector, | |
7397 | &lpfc_sli4_sp_intr_handler, IRQF_SHARED, | |
7398 | LPFC_SP_DRIVER_HANDLER_NAME, phba); | |
7399 | if (rc) { | |
7400 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
7401 | "0485 MSI-X slow-path request_irq failed " | |
7402 | "(%d)\n", rc); | |
7403 | goto msi_fail_out; | |
7404 | } | |
7405 | ||
7406 | /* The rest of the vector(s) are associated to fast-path handler(s) */ | |
7407 | for (index = 1; index < vectors; index++) { | |
7408 | phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; | |
7409 | phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; | |
7410 | rc = request_irq(phba->sli4_hba.msix_entries[index].vector, | |
7411 | &lpfc_sli4_fp_intr_handler, IRQF_SHARED, | |
7412 | LPFC_FP_DRIVER_HANDLER_NAME, | |
7413 | &phba->sli4_hba.fcp_eq_hdl[index - 1]); | |
7414 | if (rc) { | |
7415 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
7416 | "0486 MSI-X fast-path (%d) " | |
7417 | "request_irq failed (%d)\n", index, rc); | |
7418 | goto cfg_fail_out; | |
7419 | } | |
7420 | } | |
7421 | phba->sli4_hba.msix_vec_nr = vectors; | |
7422 | ||
7423 | return rc; | |
7424 | ||
7425 | cfg_fail_out: | |
7426 | /* free the irq already requested */ | |
7427 | for (--index; index >= 1; index--) | |
7428 | free_irq(phba->sli4_hba.msix_entries[index - 1].vector, | |
7429 | &phba->sli4_hba.fcp_eq_hdl[index - 1]); | |
7430 | ||
7431 | /* free the irq already requested */ | |
7432 | free_irq(phba->sli4_hba.msix_entries[0].vector, phba); | |
7433 | ||
7434 | msi_fail_out: | |
7435 | /* Unconfigure MSI-X capability structure */ | |
7436 | pci_disable_msix(phba->pcidev); | |
7437 | return rc; | |
7438 | } | |
7439 | ||
7440 | /** | |
7441 | * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device | |
7442 | * @phba: pointer to lpfc hba data structure. | |
7443 | * | |
7444 | * This routine is invoked to release the MSI-X vectors and then disable the | |
7445 | * MSI-X interrupt mode to device with SLI-4 interface spec. | |
7446 | **/ | |
7447 | static void | |
7448 | lpfc_sli4_disable_msix(struct lpfc_hba *phba) | |
7449 | { | |
7450 | int index; | |
7451 | ||
7452 | /* Free up MSI-X multi-message vectors */ | |
7453 | free_irq(phba->sli4_hba.msix_entries[0].vector, phba); | |
7454 | ||
7455 | for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++) | |
7456 | free_irq(phba->sli4_hba.msix_entries[index].vector, | |
7457 | &phba->sli4_hba.fcp_eq_hdl[index - 1]); | |
7458 | ||
7459 | /* Disable MSI-X */ | |
7460 | pci_disable_msix(phba->pcidev); | |
7461 | ||
7462 | return; | |
7463 | } | |
7464 | ||
7465 | /** | |
7466 | * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device | |
7467 | * @phba: pointer to lpfc hba data structure. | |
7468 | * | |
7469 | * This routine is invoked to enable the MSI interrupt mode to device with | |
7470 | * SLI-4 interface spec. The kernel function pci_enable_msi() is called | |
7471 | * to enable the MSI vector. The device driver is responsible for calling | |
7472 | * the request_irq() to register MSI vector with a interrupt the handler, | |
7473 | * which is done in this function. | |
7474 | * | |
7475 | * Return codes | |
7476 | * 0 - successful | |
7477 | * other values - error | |
7478 | **/ | |
7479 | static int | |
7480 | lpfc_sli4_enable_msi(struct lpfc_hba *phba) | |
7481 | { | |
7482 | int rc, index; | |
7483 | ||
7484 | rc = pci_enable_msi(phba->pcidev); | |
7485 | if (!rc) | |
7486 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7487 | "0487 PCI enable MSI mode success.\n"); | |
7488 | else { | |
7489 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7490 | "0488 PCI enable MSI mode failed (%d)\n", rc); | |
7491 | return rc; | |
7492 | } | |
7493 | ||
7494 | rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, | |
7495 | IRQF_SHARED, LPFC_DRIVER_NAME, phba); | |
7496 | if (rc) { | |
7497 | pci_disable_msi(phba->pcidev); | |
7498 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
7499 | "0490 MSI request_irq failed (%d)\n", rc); | |
7500 | return rc; | |
7501 | } | |
7502 | ||
7503 | for (index = 0; index < phba->cfg_fcp_eq_count; index++) { | |
7504 | phba->sli4_hba.fcp_eq_hdl[index].idx = index; | |
7505 | phba->sli4_hba.fcp_eq_hdl[index].phba = phba; | |
7506 | } | |
7507 | ||
7508 | return 0; | |
7509 | } | |
7510 | ||
7511 | /** | |
7512 | * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device | |
7513 | * @phba: pointer to lpfc hba data structure. | |
7514 | * | |
7515 | * This routine is invoked to disable the MSI interrupt mode to device with | |
7516 | * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has | |
7517 | * done request_irq() on before calling pci_disable_msi(). Failure to do so | |
7518 | * results in a BUG_ON() and a device will be left with MSI enabled and leaks | |
7519 | * its vector. | |
7520 | **/ | |
7521 | static void | |
7522 | lpfc_sli4_disable_msi(struct lpfc_hba *phba) | |
7523 | { | |
7524 | free_irq(phba->pcidev->irq, phba); | |
7525 | pci_disable_msi(phba->pcidev); | |
7526 | return; | |
7527 | } | |
7528 | ||
7529 | /** | |
7530 | * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device | |
7531 | * @phba: pointer to lpfc hba data structure. | |
7532 | * | |
7533 | * This routine is invoked to enable device interrupt and associate driver's | |
7534 | * interrupt handler(s) to interrupt vector(s) to device with SLI-4 | |
7535 | * interface spec. Depends on the interrupt mode configured to the driver, | |
7536 | * the driver will try to fallback from the configured interrupt mode to an | |
7537 | * interrupt mode which is supported by the platform, kernel, and device in | |
7538 | * the order of: | |
7539 | * MSI-X -> MSI -> IRQ. | |
7540 | * | |
7541 | * Return codes | |
7542 | * 0 - successful | |
7543 | * other values - error | |
7544 | **/ | |
7545 | static uint32_t | |
7546 | lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) | |
7547 | { | |
7548 | uint32_t intr_mode = LPFC_INTR_ERROR; | |
7549 | int retval, index; | |
7550 | ||
7551 | if (cfg_mode == 2) { | |
7552 | /* Preparation before conf_msi mbox cmd */ | |
7553 | retval = 0; | |
7554 | if (!retval) { | |
7555 | /* Now, try to enable MSI-X interrupt mode */ | |
7556 | retval = lpfc_sli4_enable_msix(phba); | |
7557 | if (!retval) { | |
7558 | /* Indicate initialization to MSI-X mode */ | |
7559 | phba->intr_type = MSIX; | |
7560 | intr_mode = 2; | |
7561 | } | |
7562 | } | |
7563 | } | |
7564 | ||
7565 | /* Fallback to MSI if MSI-X initialization failed */ | |
7566 | if (cfg_mode >= 1 && phba->intr_type == NONE) { | |
7567 | retval = lpfc_sli4_enable_msi(phba); | |
7568 | if (!retval) { | |
7569 | /* Indicate initialization to MSI mode */ | |
7570 | phba->intr_type = MSI; | |
7571 | intr_mode = 1; | |
7572 | } | |
7573 | } | |
7574 | ||
7575 | /* Fallback to INTx if both MSI-X/MSI initalization failed */ | |
7576 | if (phba->intr_type == NONE) { | |
7577 | retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, | |
7578 | IRQF_SHARED, LPFC_DRIVER_NAME, phba); | |
7579 | if (!retval) { | |
7580 | /* Indicate initialization to INTx mode */ | |
7581 | phba->intr_type = INTx; | |
7582 | intr_mode = 0; | |
7583 | for (index = 0; index < phba->cfg_fcp_eq_count; | |
7584 | index++) { | |
7585 | phba->sli4_hba.fcp_eq_hdl[index].idx = index; | |
7586 | phba->sli4_hba.fcp_eq_hdl[index].phba = phba; | |
7587 | } | |
7588 | } | |
7589 | } | |
7590 | return intr_mode; | |
7591 | } | |
7592 | ||
7593 | /** | |
7594 | * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device | |
7595 | * @phba: pointer to lpfc hba data structure. | |
7596 | * | |
7597 | * This routine is invoked to disable device interrupt and disassociate | |
7598 | * the driver's interrupt handler(s) from interrupt vector(s) to device | |
7599 | * with SLI-4 interface spec. Depending on the interrupt mode, the driver | |
7600 | * will release the interrupt vector(s) for the message signaled interrupt. | |
7601 | **/ | |
7602 | static void | |
7603 | lpfc_sli4_disable_intr(struct lpfc_hba *phba) | |
7604 | { | |
7605 | /* Disable the currently initialized interrupt mode */ | |
7606 | if (phba->intr_type == MSIX) | |
7607 | lpfc_sli4_disable_msix(phba); | |
7608 | else if (phba->intr_type == MSI) | |
7609 | lpfc_sli4_disable_msi(phba); | |
7610 | else if (phba->intr_type == INTx) | |
7611 | free_irq(phba->pcidev->irq, phba); | |
7612 | ||
7613 | /* Reset interrupt management states */ | |
7614 | phba->intr_type = NONE; | |
7615 | phba->sli.slistat.sli_intr = 0; | |
7616 | ||
7617 | return; | |
7618 | } | |
7619 | ||
7620 | /** | |
7621 | * lpfc_unset_hba - Unset SLI3 hba device initialization | |
7622 | * @phba: pointer to lpfc hba data structure. | |
7623 | * | |
7624 | * This routine is invoked to unset the HBA device initialization steps to | |
7625 | * a device with SLI-3 interface spec. | |
7626 | **/ | |
7627 | static void | |
7628 | lpfc_unset_hba(struct lpfc_hba *phba) | |
7629 | { | |
7630 | struct lpfc_vport *vport = phba->pport; | |
7631 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
7632 | ||
7633 | spin_lock_irq(shost->host_lock); | |
7634 | vport->load_flag |= FC_UNLOADING; | |
7635 | spin_unlock_irq(shost->host_lock); | |
7636 | ||
7637 | lpfc_stop_hba_timers(phba); | |
7638 | ||
7639 | phba->pport->work_port_events = 0; | |
7640 | ||
7641 | lpfc_sli_hba_down(phba); | |
7642 | ||
7643 | lpfc_sli_brdrestart(phba); | |
7644 | ||
7645 | lpfc_sli_disable_intr(phba); | |
7646 | ||
7647 | return; | |
7648 | } | |
7649 | ||
7650 | /** | |
7651 | * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. | |
7652 | * @phba: pointer to lpfc hba data structure. | |
7653 | * | |
7654 | * This routine is invoked to unset the HBA device initialization steps to | |
7655 | * a device with SLI-4 interface spec. | |
7656 | **/ | |
7657 | static void | |
7658 | lpfc_sli4_unset_hba(struct lpfc_hba *phba) | |
7659 | { | |
7660 | struct lpfc_vport *vport = phba->pport; | |
7661 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
7662 | ||
7663 | spin_lock_irq(shost->host_lock); | |
7664 | vport->load_flag |= FC_UNLOADING; | |
7665 | spin_unlock_irq(shost->host_lock); | |
7666 | ||
7667 | phba->pport->work_port_events = 0; | |
7668 | ||
7669 | /* Stop the SLI4 device port */ | |
7670 | lpfc_stop_port(phba); | |
7671 | ||
7672 | lpfc_sli4_disable_intr(phba); | |
7673 | ||
7674 | /* Reset SLI4 HBA FCoE function */ | |
7675 | lpfc_pci_function_reset(phba); | |
7676 | ||
7677 | return; | |
7678 | } | |
7679 | ||
7680 | /** | |
7681 | * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy | |
7682 | * @phba: Pointer to HBA context object. | |
7683 | * | |
7684 | * This function is called in the SLI4 code path to wait for completion | |
7685 | * of device's XRIs exchange busy. It will check the XRI exchange busy | |
7686 | * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after | |
7687 | * that, it will check the XRI exchange busy on outstanding FCP and ELS | |
7688 | * I/Os every 30 seconds, log error message, and wait forever. Only when | |
7689 | * all XRI exchange busy complete, the driver unload shall proceed with | |
7690 | * invoking the function reset ioctl mailbox command to the CNA and the | |
7691 | * the rest of the driver unload resource release. | |
7692 | **/ | |
7693 | static void | |
7694 | lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) | |
7695 | { | |
7696 | int wait_time = 0; | |
7697 | int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); | |
7698 | int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); | |
7699 | ||
7700 | while (!fcp_xri_cmpl || !els_xri_cmpl) { | |
7701 | if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { | |
7702 | if (!fcp_xri_cmpl) | |
7703 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7704 | "2877 FCP XRI exchange busy " | |
7705 | "wait time: %d seconds.\n", | |
7706 | wait_time/1000); | |
7707 | if (!els_xri_cmpl) | |
7708 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7709 | "2878 ELS XRI exchange busy " | |
7710 | "wait time: %d seconds.\n", | |
7711 | wait_time/1000); | |
7712 | msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); | |
7713 | wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; | |
7714 | } else { | |
7715 | msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); | |
7716 | wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; | |
7717 | } | |
7718 | fcp_xri_cmpl = | |
7719 | list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); | |
7720 | els_xri_cmpl = | |
7721 | list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); | |
7722 | } | |
7723 | } | |
7724 | ||
7725 | /** | |
7726 | * lpfc_sli4_hba_unset - Unset the fcoe hba | |
7727 | * @phba: Pointer to HBA context object. | |
7728 | * | |
7729 | * This function is called in the SLI4 code path to reset the HBA's FCoE | |
7730 | * function. The caller is not required to hold any lock. This routine | |
7731 | * issues PCI function reset mailbox command to reset the FCoE function. | |
7732 | * At the end of the function, it calls lpfc_hba_down_post function to | |
7733 | * free any pending commands. | |
7734 | **/ | |
7735 | static void | |
7736 | lpfc_sli4_hba_unset(struct lpfc_hba *phba) | |
7737 | { | |
7738 | int wait_cnt = 0; | |
7739 | LPFC_MBOXQ_t *mboxq; | |
7740 | ||
7741 | lpfc_stop_hba_timers(phba); | |
7742 | phba->sli4_hba.intr_enable = 0; | |
7743 | ||
7744 | /* | |
7745 | * Gracefully wait out the potential current outstanding asynchronous | |
7746 | * mailbox command. | |
7747 | */ | |
7748 | ||
7749 | /* First, block any pending async mailbox command from posted */ | |
7750 | spin_lock_irq(&phba->hbalock); | |
7751 | phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; | |
7752 | spin_unlock_irq(&phba->hbalock); | |
7753 | /* Now, trying to wait it out if we can */ | |
7754 | while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { | |
7755 | msleep(10); | |
7756 | if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) | |
7757 | break; | |
7758 | } | |
7759 | /* Forcefully release the outstanding mailbox command if timed out */ | |
7760 | if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { | |
7761 | spin_lock_irq(&phba->hbalock); | |
7762 | mboxq = phba->sli.mbox_active; | |
7763 | mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; | |
7764 | __lpfc_mbox_cmpl_put(phba, mboxq); | |
7765 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
7766 | phba->sli.mbox_active = NULL; | |
7767 | spin_unlock_irq(&phba->hbalock); | |
7768 | } | |
7769 | ||
7770 | /* Abort all iocbs associated with the hba */ | |
7771 | lpfc_sli_hba_iocb_abort(phba); | |
7772 | ||
7773 | /* Wait for completion of device XRI exchange busy */ | |
7774 | lpfc_sli4_xri_exchange_busy_wait(phba); | |
7775 | ||
7776 | /* Disable PCI subsystem interrupt */ | |
7777 | lpfc_sli4_disable_intr(phba); | |
7778 | ||
7779 | /* Stop kthread signal shall trigger work_done one more time */ | |
7780 | kthread_stop(phba->worker_thread); | |
7781 | ||
7782 | /* Reset SLI4 HBA FCoE function */ | |
7783 | lpfc_pci_function_reset(phba); | |
7784 | ||
7785 | /* Stop the SLI4 device port */ | |
7786 | phba->pport->work_port_events = 0; | |
7787 | } | |
7788 | ||
7789 | /** | |
7790 | * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. | |
7791 | * @phba: Pointer to HBA context object. | |
7792 | * @mboxq: Pointer to the mailboxq memory for the mailbox command response. | |
7793 | * | |
7794 | * This function is called in the SLI4 code path to read the port's | |
7795 | * sli4 capabilities. | |
7796 | * | |
7797 | * This function may be be called from any context that can block-wait | |
7798 | * for the completion. The expectation is that this routine is called | |
7799 | * typically from probe_one or from the online routine. | |
7800 | **/ | |
7801 | int | |
7802 | lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) | |
7803 | { | |
7804 | int rc; | |
7805 | struct lpfc_mqe *mqe; | |
7806 | struct lpfc_pc_sli4_params *sli4_params; | |
7807 | uint32_t mbox_tmo; | |
7808 | ||
7809 | rc = 0; | |
7810 | mqe = &mboxq->u.mqe; | |
7811 | ||
7812 | /* Read the port's SLI4 Parameters port capabilities */ | |
7813 | lpfc_sli4_params(mboxq); | |
7814 | if (!phba->sli4_hba.intr_enable) | |
7815 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
7816 | else { | |
7817 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES); | |
7818 | rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); | |
7819 | } | |
7820 | ||
7821 | if (unlikely(rc)) | |
7822 | return 1; | |
7823 | ||
7824 | sli4_params = &phba->sli4_hba.pc_sli4_params; | |
7825 | sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); | |
7826 | sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); | |
7827 | sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); | |
7828 | sli4_params->featurelevel_1 = bf_get(featurelevel_1, | |
7829 | &mqe->un.sli4_params); | |
7830 | sli4_params->featurelevel_2 = bf_get(featurelevel_2, | |
7831 | &mqe->un.sli4_params); | |
7832 | sli4_params->proto_types = mqe->un.sli4_params.word3; | |
7833 | sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; | |
7834 | sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); | |
7835 | sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); | |
7836 | sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); | |
7837 | sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); | |
7838 | sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); | |
7839 | sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); | |
7840 | sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); | |
7841 | sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); | |
7842 | sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); | |
7843 | sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); | |
7844 | sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); | |
7845 | sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); | |
7846 | sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); | |
7847 | sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); | |
7848 | sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); | |
7849 | sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); | |
7850 | sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); | |
7851 | sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); | |
7852 | sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); | |
7853 | return rc; | |
7854 | } | |
7855 | ||
7856 | /** | |
7857 | * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. | |
7858 | * @pdev: pointer to PCI device | |
7859 | * @pid: pointer to PCI device identifier | |
7860 | * | |
7861 | * This routine is to be called to attach a device with SLI-3 interface spec | |
7862 | * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is | |
7863 | * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific | |
7864 | * information of the device and driver to see if the driver state that it can | |
7865 | * support this kind of device. If the match is successful, the driver core | |
7866 | * invokes this routine. If this routine determines it can claim the HBA, it | |
7867 | * does all the initialization that it needs to do to handle the HBA properly. | |
7868 | * | |
7869 | * Return code | |
7870 | * 0 - driver can claim the device | |
7871 | * negative value - driver can not claim the device | |
7872 | **/ | |
7873 | static int __devinit | |
7874 | lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) | |
7875 | { | |
7876 | struct lpfc_hba *phba; | |
7877 | struct lpfc_vport *vport = NULL; | |
7878 | struct Scsi_Host *shost = NULL; | |
7879 | int error; | |
7880 | uint32_t cfg_mode, intr_mode; | |
7881 | ||
7882 | /* Allocate memory for HBA structure */ | |
7883 | phba = lpfc_hba_alloc(pdev); | |
7884 | if (!phba) | |
7885 | return -ENOMEM; | |
7886 | ||
7887 | /* Perform generic PCI device enabling operation */ | |
7888 | error = lpfc_enable_pci_dev(phba); | |
7889 | if (error) { | |
7890 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7891 | "1401 Failed to enable pci device.\n"); | |
7892 | goto out_free_phba; | |
7893 | } | |
7894 | ||
7895 | /* Set up SLI API function jump table for PCI-device group-0 HBAs */ | |
7896 | error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); | |
7897 | if (error) | |
7898 | goto out_disable_pci_dev; | |
7899 | ||
7900 | /* Set up SLI-3 specific device PCI memory space */ | |
7901 | error = lpfc_sli_pci_mem_setup(phba); | |
7902 | if (error) { | |
7903 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7904 | "1402 Failed to set up pci memory space.\n"); | |
7905 | goto out_disable_pci_dev; | |
7906 | } | |
7907 | ||
7908 | /* Set up phase-1 common device driver resources */ | |
7909 | error = lpfc_setup_driver_resource_phase1(phba); | |
7910 | if (error) { | |
7911 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7912 | "1403 Failed to set up driver resource.\n"); | |
7913 | goto out_unset_pci_mem_s3; | |
7914 | } | |
7915 | ||
7916 | /* Set up SLI-3 specific device driver resources */ | |
7917 | error = lpfc_sli_driver_resource_setup(phba); | |
7918 | if (error) { | |
7919 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7920 | "1404 Failed to set up driver resource.\n"); | |
7921 | goto out_unset_pci_mem_s3; | |
7922 | } | |
7923 | ||
7924 | /* Initialize and populate the iocb list per host */ | |
7925 | error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); | |
7926 | if (error) { | |
7927 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7928 | "1405 Failed to initialize iocb list.\n"); | |
7929 | goto out_unset_driver_resource_s3; | |
7930 | } | |
7931 | ||
7932 | /* Set up common device driver resources */ | |
7933 | error = lpfc_setup_driver_resource_phase2(phba); | |
7934 | if (error) { | |
7935 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7936 | "1406 Failed to set up driver resource.\n"); | |
7937 | goto out_free_iocb_list; | |
7938 | } | |
7939 | ||
7940 | /* Create SCSI host to the physical port */ | |
7941 | error = lpfc_create_shost(phba); | |
7942 | if (error) { | |
7943 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7944 | "1407 Failed to create scsi host.\n"); | |
7945 | goto out_unset_driver_resource; | |
7946 | } | |
7947 | ||
7948 | /* Configure sysfs attributes */ | |
7949 | vport = phba->pport; | |
7950 | error = lpfc_alloc_sysfs_attr(vport); | |
7951 | if (error) { | |
7952 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7953 | "1476 Failed to allocate sysfs attr\n"); | |
7954 | goto out_destroy_shost; | |
7955 | } | |
7956 | ||
7957 | shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ | |
7958 | /* Now, trying to enable interrupt and bring up the device */ | |
7959 | cfg_mode = phba->cfg_use_msi; | |
7960 | while (true) { | |
7961 | /* Put device to a known state before enabling interrupt */ | |
7962 | lpfc_stop_port(phba); | |
7963 | /* Configure and enable interrupt */ | |
7964 | intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); | |
7965 | if (intr_mode == LPFC_INTR_ERROR) { | |
7966 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7967 | "0431 Failed to enable interrupt.\n"); | |
7968 | error = -ENODEV; | |
7969 | goto out_free_sysfs_attr; | |
7970 | } | |
7971 | /* SLI-3 HBA setup */ | |
7972 | if (lpfc_sli_hba_setup(phba)) { | |
7973 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7974 | "1477 Failed to set up hba\n"); | |
7975 | error = -ENODEV; | |
7976 | goto out_remove_device; | |
7977 | } | |
7978 | ||
7979 | /* Wait 50ms for the interrupts of previous mailbox commands */ | |
7980 | msleep(50); | |
7981 | /* Check active interrupts on message signaled interrupts */ | |
7982 | if (intr_mode == 0 || | |
7983 | phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { | |
7984 | /* Log the current active interrupt mode */ | |
7985 | phba->intr_mode = intr_mode; | |
7986 | lpfc_log_intr_mode(phba, intr_mode); | |
7987 | break; | |
7988 | } else { | |
7989 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
7990 | "0447 Configure interrupt mode (%d) " | |
7991 | "failed active interrupt test.\n", | |
7992 | intr_mode); | |
7993 | /* Disable the current interrupt mode */ | |
7994 | lpfc_sli_disable_intr(phba); | |
7995 | /* Try next level of interrupt mode */ | |
7996 | cfg_mode = --intr_mode; | |
7997 | } | |
7998 | } | |
7999 | ||
8000 | /* Perform post initialization setup */ | |
8001 | lpfc_post_init_setup(phba); | |
8002 | ||
8003 | /* Check if there are static vports to be created. */ | |
8004 | lpfc_create_static_vport(phba); | |
8005 | ||
8006 | return 0; | |
8007 | ||
8008 | out_remove_device: | |
8009 | lpfc_unset_hba(phba); | |
8010 | out_free_sysfs_attr: | |
8011 | lpfc_free_sysfs_attr(vport); | |
8012 | out_destroy_shost: | |
8013 | lpfc_destroy_shost(phba); | |
8014 | out_unset_driver_resource: | |
8015 | lpfc_unset_driver_resource_phase2(phba); | |
8016 | out_free_iocb_list: | |
8017 | lpfc_free_iocb_list(phba); | |
8018 | out_unset_driver_resource_s3: | |
8019 | lpfc_sli_driver_resource_unset(phba); | |
8020 | out_unset_pci_mem_s3: | |
8021 | lpfc_sli_pci_mem_unset(phba); | |
8022 | out_disable_pci_dev: | |
8023 | lpfc_disable_pci_dev(phba); | |
8024 | if (shost) | |
8025 | scsi_host_put(shost); | |
8026 | out_free_phba: | |
8027 | lpfc_hba_free(phba); | |
8028 | return error; | |
8029 | } | |
8030 | ||
8031 | /** | |
8032 | * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. | |
8033 | * @pdev: pointer to PCI device | |
8034 | * | |
8035 | * This routine is to be called to disattach a device with SLI-3 interface | |
8036 | * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is | |
8037 | * removed from PCI bus, it performs all the necessary cleanup for the HBA | |
8038 | * device to be removed from the PCI subsystem properly. | |
8039 | **/ | |
8040 | static void __devexit | |
8041 | lpfc_pci_remove_one_s3(struct pci_dev *pdev) | |
8042 | { | |
8043 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
8044 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
8045 | struct lpfc_vport **vports; | |
8046 | struct lpfc_hba *phba = vport->phba; | |
8047 | int i; | |
8048 | int bars = pci_select_bars(pdev, IORESOURCE_MEM); | |
8049 | ||
8050 | spin_lock_irq(&phba->hbalock); | |
8051 | vport->load_flag |= FC_UNLOADING; | |
8052 | spin_unlock_irq(&phba->hbalock); | |
8053 | ||
8054 | lpfc_free_sysfs_attr(vport); | |
8055 | ||
8056 | /* Release all the vports against this physical port */ | |
8057 | vports = lpfc_create_vport_work_array(phba); | |
8058 | if (vports != NULL) | |
8059 | for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) | |
8060 | fc_vport_terminate(vports[i]->fc_vport); | |
8061 | lpfc_destroy_vport_work_array(phba, vports); | |
8062 | ||
8063 | /* Remove FC host and then SCSI host with the physical port */ | |
8064 | fc_remove_host(shost); | |
8065 | scsi_remove_host(shost); | |
8066 | lpfc_cleanup(vport); | |
8067 | ||
8068 | /* | |
8069 | * Bring down the SLI Layer. This step disable all interrupts, | |
8070 | * clears the rings, discards all mailbox commands, and resets | |
8071 | * the HBA. | |
8072 | */ | |
8073 | ||
8074 | /* HBA interrupt will be disabled after this call */ | |
8075 | lpfc_sli_hba_down(phba); | |
8076 | /* Stop kthread signal shall trigger work_done one more time */ | |
8077 | kthread_stop(phba->worker_thread); | |
8078 | /* Final cleanup of txcmplq and reset the HBA */ | |
8079 | lpfc_sli_brdrestart(phba); | |
8080 | ||
8081 | lpfc_stop_hba_timers(phba); | |
8082 | spin_lock_irq(&phba->hbalock); | |
8083 | list_del_init(&vport->listentry); | |
8084 | spin_unlock_irq(&phba->hbalock); | |
8085 | ||
8086 | lpfc_debugfs_terminate(vport); | |
8087 | ||
8088 | /* Disable interrupt */ | |
8089 | lpfc_sli_disable_intr(phba); | |
8090 | ||
8091 | pci_set_drvdata(pdev, NULL); | |
8092 | scsi_host_put(shost); | |
8093 | ||
8094 | /* | |
8095 | * Call scsi_free before mem_free since scsi bufs are released to their | |
8096 | * corresponding pools here. | |
8097 | */ | |
8098 | lpfc_scsi_free(phba); | |
8099 | lpfc_mem_free_all(phba); | |
8100 | ||
8101 | dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), | |
8102 | phba->hbqslimp.virt, phba->hbqslimp.phys); | |
8103 | ||
8104 | /* Free resources associated with SLI2 interface */ | |
8105 | dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, | |
8106 | phba->slim2p.virt, phba->slim2p.phys); | |
8107 | ||
8108 | /* unmap adapter SLIM and Control Registers */ | |
8109 | iounmap(phba->ctrl_regs_memmap_p); | |
8110 | iounmap(phba->slim_memmap_p); | |
8111 | ||
8112 | lpfc_hba_free(phba); | |
8113 | ||
8114 | pci_release_selected_regions(pdev, bars); | |
8115 | pci_disable_device(pdev); | |
8116 | } | |
8117 | ||
8118 | /** | |
8119 | * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt | |
8120 | * @pdev: pointer to PCI device | |
8121 | * @msg: power management message | |
8122 | * | |
8123 | * This routine is to be called from the kernel's PCI subsystem to support | |
8124 | * system Power Management (PM) to device with SLI-3 interface spec. When | |
8125 | * PM invokes this method, it quiesces the device by stopping the driver's | |
8126 | * worker thread for the device, turning off device's interrupt and DMA, | |
8127 | * and bring the device offline. Note that as the driver implements the | |
8128 | * minimum PM requirements to a power-aware driver's PM support for the | |
8129 | * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) | |
8130 | * to the suspend() method call will be treated as SUSPEND and the driver will | |
8131 | * fully reinitialize its device during resume() method call, the driver will | |
8132 | * set device to PCI_D3hot state in PCI config space instead of setting it | |
8133 | * according to the @msg provided by the PM. | |
8134 | * | |
8135 | * Return code | |
8136 | * 0 - driver suspended the device | |
8137 | * Error otherwise | |
8138 | **/ | |
8139 | static int | |
8140 | lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) | |
8141 | { | |
8142 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
8143 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
8144 | ||
8145 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
8146 | "0473 PCI device Power Management suspend.\n"); | |
8147 | ||
8148 | /* Bring down the device */ | |
8149 | lpfc_offline_prep(phba); | |
8150 | lpfc_offline(phba); | |
8151 | kthread_stop(phba->worker_thread); | |
8152 | ||
8153 | /* Disable interrupt from device */ | |
8154 | lpfc_sli_disable_intr(phba); | |
8155 | ||
8156 | /* Save device state to PCI config space */ | |
8157 | pci_save_state(pdev); | |
8158 | pci_set_power_state(pdev, PCI_D3hot); | |
8159 | ||
8160 | return 0; | |
8161 | } | |
8162 | ||
8163 | /** | |
8164 | * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt | |
8165 | * @pdev: pointer to PCI device | |
8166 | * | |
8167 | * This routine is to be called from the kernel's PCI subsystem to support | |
8168 | * system Power Management (PM) to device with SLI-3 interface spec. When PM | |
8169 | * invokes this method, it restores the device's PCI config space state and | |
8170 | * fully reinitializes the device and brings it online. Note that as the | |
8171 | * driver implements the minimum PM requirements to a power-aware driver's | |
8172 | * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, | |
8173 | * FREEZE) to the suspend() method call will be treated as SUSPEND and the | |
8174 | * driver will fully reinitialize its device during resume() method call, | |
8175 | * the device will be set to PCI_D0 directly in PCI config space before | |
8176 | * restoring the state. | |
8177 | * | |
8178 | * Return code | |
8179 | * 0 - driver suspended the device | |
8180 | * Error otherwise | |
8181 | **/ | |
8182 | static int | |
8183 | lpfc_pci_resume_one_s3(struct pci_dev *pdev) | |
8184 | { | |
8185 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
8186 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
8187 | uint32_t intr_mode; | |
8188 | int error; | |
8189 | ||
8190 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
8191 | "0452 PCI device Power Management resume.\n"); | |
8192 | ||
8193 | /* Restore device state from PCI config space */ | |
8194 | pci_set_power_state(pdev, PCI_D0); | |
8195 | pci_restore_state(pdev); | |
8196 | ||
8197 | /* | |
8198 | * As the new kernel behavior of pci_restore_state() API call clears | |
8199 | * device saved_state flag, need to save the restored state again. | |
8200 | */ | |
8201 | pci_save_state(pdev); | |
8202 | ||
8203 | if (pdev->is_busmaster) | |
8204 | pci_set_master(pdev); | |
8205 | ||
8206 | /* Startup the kernel thread for this host adapter. */ | |
8207 | phba->worker_thread = kthread_run(lpfc_do_work, phba, | |
8208 | "lpfc_worker_%d", phba->brd_no); | |
8209 | if (IS_ERR(phba->worker_thread)) { | |
8210 | error = PTR_ERR(phba->worker_thread); | |
8211 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8212 | "0434 PM resume failed to start worker " | |
8213 | "thread: error=x%x.\n", error); | |
8214 | return error; | |
8215 | } | |
8216 | ||
8217 | /* Configure and enable interrupt */ | |
8218 | intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); | |
8219 | if (intr_mode == LPFC_INTR_ERROR) { | |
8220 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8221 | "0430 PM resume Failed to enable interrupt\n"); | |
8222 | return -EIO; | |
8223 | } else | |
8224 | phba->intr_mode = intr_mode; | |
8225 | ||
8226 | /* Restart HBA and bring it online */ | |
8227 | lpfc_sli_brdrestart(phba); | |
8228 | lpfc_online(phba); | |
8229 | ||
8230 | /* Log the current active interrupt mode */ | |
8231 | lpfc_log_intr_mode(phba, phba->intr_mode); | |
8232 | ||
8233 | return 0; | |
8234 | } | |
8235 | ||
8236 | /** | |
8237 | * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover | |
8238 | * @phba: pointer to lpfc hba data structure. | |
8239 | * | |
8240 | * This routine is called to prepare the SLI3 device for PCI slot recover. It | |
8241 | * aborts all the outstanding SCSI I/Os to the pci device. | |
8242 | **/ | |
8243 | static void | |
8244 | lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) | |
8245 | { | |
8246 | struct lpfc_sli *psli = &phba->sli; | |
8247 | struct lpfc_sli_ring *pring; | |
8248 | ||
8249 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8250 | "2723 PCI channel I/O abort preparing for recovery\n"); | |
8251 | ||
8252 | /* | |
8253 | * There may be errored I/Os through HBA, abort all I/Os on txcmplq | |
8254 | * and let the SCSI mid-layer to retry them to recover. | |
8255 | */ | |
8256 | pring = &psli->ring[psli->fcp_ring]; | |
8257 | lpfc_sli_abort_iocb_ring(phba, pring); | |
8258 | } | |
8259 | ||
8260 | /** | |
8261 | * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset | |
8262 | * @phba: pointer to lpfc hba data structure. | |
8263 | * | |
8264 | * This routine is called to prepare the SLI3 device for PCI slot reset. It | |
8265 | * disables the device interrupt and pci device, and aborts the internal FCP | |
8266 | * pending I/Os. | |
8267 | **/ | |
8268 | static void | |
8269 | lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) | |
8270 | { | |
8271 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8272 | "2710 PCI channel disable preparing for reset\n"); | |
8273 | ||
8274 | /* Block any management I/Os to the device */ | |
8275 | lpfc_block_mgmt_io(phba); | |
8276 | ||
8277 | /* Block all SCSI devices' I/Os on the host */ | |
8278 | lpfc_scsi_dev_block(phba); | |
8279 | ||
8280 | /* stop all timers */ | |
8281 | lpfc_stop_hba_timers(phba); | |
8282 | ||
8283 | /* Disable interrupt and pci device */ | |
8284 | lpfc_sli_disable_intr(phba); | |
8285 | pci_disable_device(phba->pcidev); | |
8286 | ||
8287 | /* Flush all driver's outstanding SCSI I/Os as we are to reset */ | |
8288 | lpfc_sli_flush_fcp_rings(phba); | |
8289 | } | |
8290 | ||
8291 | /** | |
8292 | * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable | |
8293 | * @phba: pointer to lpfc hba data structure. | |
8294 | * | |
8295 | * This routine is called to prepare the SLI3 device for PCI slot permanently | |
8296 | * disabling. It blocks the SCSI transport layer traffic and flushes the FCP | |
8297 | * pending I/Os. | |
8298 | **/ | |
8299 | static void | |
8300 | lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) | |
8301 | { | |
8302 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8303 | "2711 PCI channel permanent disable for failure\n"); | |
8304 | /* Block all SCSI devices' I/Os on the host */ | |
8305 | lpfc_scsi_dev_block(phba); | |
8306 | ||
8307 | /* stop all timers */ | |
8308 | lpfc_stop_hba_timers(phba); | |
8309 | ||
8310 | /* Clean up all driver's outstanding SCSI I/Os */ | |
8311 | lpfc_sli_flush_fcp_rings(phba); | |
8312 | } | |
8313 | ||
8314 | /** | |
8315 | * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error | |
8316 | * @pdev: pointer to PCI device. | |
8317 | * @state: the current PCI connection state. | |
8318 | * | |
8319 | * This routine is called from the PCI subsystem for I/O error handling to | |
8320 | * device with SLI-3 interface spec. This function is called by the PCI | |
8321 | * subsystem after a PCI bus error affecting this device has been detected. | |
8322 | * When this function is invoked, it will need to stop all the I/Os and | |
8323 | * interrupt(s) to the device. Once that is done, it will return | |
8324 | * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery | |
8325 | * as desired. | |
8326 | * | |
8327 | * Return codes | |
8328 | * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link | |
8329 | * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery | |
8330 | * PCI_ERS_RESULT_DISCONNECT - device could not be recovered | |
8331 | **/ | |
8332 | static pci_ers_result_t | |
8333 | lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) | |
8334 | { | |
8335 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
8336 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
8337 | ||
8338 | switch (state) { | |
8339 | case pci_channel_io_normal: | |
8340 | /* Non-fatal error, prepare for recovery */ | |
8341 | lpfc_sli_prep_dev_for_recover(phba); | |
8342 | return PCI_ERS_RESULT_CAN_RECOVER; | |
8343 | case pci_channel_io_frozen: | |
8344 | /* Fatal error, prepare for slot reset */ | |
8345 | lpfc_sli_prep_dev_for_reset(phba); | |
8346 | return PCI_ERS_RESULT_NEED_RESET; | |
8347 | case pci_channel_io_perm_failure: | |
8348 | /* Permanent failure, prepare for device down */ | |
8349 | lpfc_sli_prep_dev_for_perm_failure(phba); | |
8350 | return PCI_ERS_RESULT_DISCONNECT; | |
8351 | default: | |
8352 | /* Unknown state, prepare and request slot reset */ | |
8353 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8354 | "0472 Unknown PCI error state: x%x\n", state); | |
8355 | lpfc_sli_prep_dev_for_reset(phba); | |
8356 | return PCI_ERS_RESULT_NEED_RESET; | |
8357 | } | |
8358 | } | |
8359 | ||
8360 | /** | |
8361 | * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. | |
8362 | * @pdev: pointer to PCI device. | |
8363 | * | |
8364 | * This routine is called from the PCI subsystem for error handling to | |
8365 | * device with SLI-3 interface spec. This is called after PCI bus has been | |
8366 | * reset to restart the PCI card from scratch, as if from a cold-boot. | |
8367 | * During the PCI subsystem error recovery, after driver returns | |
8368 | * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error | |
8369 | * recovery and then call this routine before calling the .resume method | |
8370 | * to recover the device. This function will initialize the HBA device, | |
8371 | * enable the interrupt, but it will just put the HBA to offline state | |
8372 | * without passing any I/O traffic. | |
8373 | * | |
8374 | * Return codes | |
8375 | * PCI_ERS_RESULT_RECOVERED - the device has been recovered | |
8376 | * PCI_ERS_RESULT_DISCONNECT - device could not be recovered | |
8377 | */ | |
8378 | static pci_ers_result_t | |
8379 | lpfc_io_slot_reset_s3(struct pci_dev *pdev) | |
8380 | { | |
8381 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
8382 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
8383 | struct lpfc_sli *psli = &phba->sli; | |
8384 | uint32_t intr_mode; | |
8385 | ||
8386 | dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); | |
8387 | if (pci_enable_device_mem(pdev)) { | |
8388 | printk(KERN_ERR "lpfc: Cannot re-enable " | |
8389 | "PCI device after reset.\n"); | |
8390 | return PCI_ERS_RESULT_DISCONNECT; | |
8391 | } | |
8392 | ||
8393 | pci_restore_state(pdev); | |
8394 | ||
8395 | /* | |
8396 | * As the new kernel behavior of pci_restore_state() API call clears | |
8397 | * device saved_state flag, need to save the restored state again. | |
8398 | */ | |
8399 | pci_save_state(pdev); | |
8400 | ||
8401 | if (pdev->is_busmaster) | |
8402 | pci_set_master(pdev); | |
8403 | ||
8404 | spin_lock_irq(&phba->hbalock); | |
8405 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; | |
8406 | spin_unlock_irq(&phba->hbalock); | |
8407 | ||
8408 | /* Configure and enable interrupt */ | |
8409 | intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); | |
8410 | if (intr_mode == LPFC_INTR_ERROR) { | |
8411 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8412 | "0427 Cannot re-enable interrupt after " | |
8413 | "slot reset.\n"); | |
8414 | return PCI_ERS_RESULT_DISCONNECT; | |
8415 | } else | |
8416 | phba->intr_mode = intr_mode; | |
8417 | ||
8418 | /* Take device offline, it will perform cleanup */ | |
8419 | lpfc_offline_prep(phba); | |
8420 | lpfc_offline(phba); | |
8421 | lpfc_sli_brdrestart(phba); | |
8422 | ||
8423 | /* Log the current active interrupt mode */ | |
8424 | lpfc_log_intr_mode(phba, phba->intr_mode); | |
8425 | ||
8426 | return PCI_ERS_RESULT_RECOVERED; | |
8427 | } | |
8428 | ||
8429 | /** | |
8430 | * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. | |
8431 | * @pdev: pointer to PCI device | |
8432 | * | |
8433 | * This routine is called from the PCI subsystem for error handling to device | |
8434 | * with SLI-3 interface spec. It is called when kernel error recovery tells | |
8435 | * the lpfc driver that it is ok to resume normal PCI operation after PCI bus | |
8436 | * error recovery. After this call, traffic can start to flow from this device | |
8437 | * again. | |
8438 | */ | |
8439 | static void | |
8440 | lpfc_io_resume_s3(struct pci_dev *pdev) | |
8441 | { | |
8442 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
8443 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
8444 | ||
8445 | /* Bring device online, it will be no-op for non-fatal error resume */ | |
8446 | lpfc_online(phba); | |
8447 | ||
8448 | /* Clean up Advanced Error Reporting (AER) if needed */ | |
8449 | if (phba->hba_flag & HBA_AER_ENABLED) | |
8450 | pci_cleanup_aer_uncorrect_error_status(pdev); | |
8451 | } | |
8452 | ||
8453 | /** | |
8454 | * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve | |
8455 | * @phba: pointer to lpfc hba data structure. | |
8456 | * | |
8457 | * returns the number of ELS/CT IOCBs to reserve | |
8458 | **/ | |
8459 | int | |
8460 | lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) | |
8461 | { | |
8462 | int max_xri = phba->sli4_hba.max_cfg_param.max_xri; | |
8463 | ||
8464 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
8465 | if (max_xri <= 100) | |
8466 | return 10; | |
8467 | else if (max_xri <= 256) | |
8468 | return 25; | |
8469 | else if (max_xri <= 512) | |
8470 | return 50; | |
8471 | else if (max_xri <= 1024) | |
8472 | return 100; | |
8473 | else | |
8474 | return 150; | |
8475 | } else | |
8476 | return 0; | |
8477 | } | |
8478 | ||
8479 | /** | |
8480 | * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys | |
8481 | * @pdev: pointer to PCI device | |
8482 | * @pid: pointer to PCI device identifier | |
8483 | * | |
8484 | * This routine is called from the kernel's PCI subsystem to device with | |
8485 | * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is | |
8486 | * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific | |
8487 | * information of the device and driver to see if the driver state that it | |
8488 | * can support this kind of device. If the match is successful, the driver | |
8489 | * core invokes this routine. If this routine determines it can claim the HBA, | |
8490 | * it does all the initialization that it needs to do to handle the HBA | |
8491 | * properly. | |
8492 | * | |
8493 | * Return code | |
8494 | * 0 - driver can claim the device | |
8495 | * negative value - driver can not claim the device | |
8496 | **/ | |
8497 | static int __devinit | |
8498 | lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) | |
8499 | { | |
8500 | struct lpfc_hba *phba; | |
8501 | struct lpfc_vport *vport = NULL; | |
8502 | struct Scsi_Host *shost = NULL; | |
8503 | int error; | |
8504 | uint32_t cfg_mode, intr_mode; | |
8505 | int mcnt; | |
8506 | ||
8507 | /* Allocate memory for HBA structure */ | |
8508 | phba = lpfc_hba_alloc(pdev); | |
8509 | if (!phba) | |
8510 | return -ENOMEM; | |
8511 | ||
8512 | /* Perform generic PCI device enabling operation */ | |
8513 | error = lpfc_enable_pci_dev(phba); | |
8514 | if (error) { | |
8515 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8516 | "1409 Failed to enable pci device.\n"); | |
8517 | goto out_free_phba; | |
8518 | } | |
8519 | ||
8520 | /* Set up SLI API function jump table for PCI-device group-1 HBAs */ | |
8521 | error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); | |
8522 | if (error) | |
8523 | goto out_disable_pci_dev; | |
8524 | ||
8525 | /* Set up SLI-4 specific device PCI memory space */ | |
8526 | error = lpfc_sli4_pci_mem_setup(phba); | |
8527 | if (error) { | |
8528 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8529 | "1410 Failed to set up pci memory space.\n"); | |
8530 | goto out_disable_pci_dev; | |
8531 | } | |
8532 | ||
8533 | /* Set up phase-1 common device driver resources */ | |
8534 | error = lpfc_setup_driver_resource_phase1(phba); | |
8535 | if (error) { | |
8536 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8537 | "1411 Failed to set up driver resource.\n"); | |
8538 | goto out_unset_pci_mem_s4; | |
8539 | } | |
8540 | ||
8541 | /* Set up SLI-4 Specific device driver resources */ | |
8542 | error = lpfc_sli4_driver_resource_setup(phba); | |
8543 | if (error) { | |
8544 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8545 | "1412 Failed to set up driver resource.\n"); | |
8546 | goto out_unset_pci_mem_s4; | |
8547 | } | |
8548 | ||
8549 | /* Initialize and populate the iocb list per host */ | |
8550 | ||
8551 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
8552 | "2821 initialize iocb list %d.\n", | |
8553 | phba->cfg_iocb_cnt*1024); | |
8554 | error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); | |
8555 | ||
8556 | if (error) { | |
8557 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8558 | "1413 Failed to initialize iocb list.\n"); | |
8559 | goto out_unset_driver_resource_s4; | |
8560 | } | |
8561 | ||
8562 | INIT_LIST_HEAD(&phba->active_rrq_list); | |
8563 | ||
8564 | /* Set up common device driver resources */ | |
8565 | error = lpfc_setup_driver_resource_phase2(phba); | |
8566 | if (error) { | |
8567 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8568 | "1414 Failed to set up driver resource.\n"); | |
8569 | goto out_free_iocb_list; | |
8570 | } | |
8571 | ||
8572 | /* Create SCSI host to the physical port */ | |
8573 | error = lpfc_create_shost(phba); | |
8574 | if (error) { | |
8575 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8576 | "1415 Failed to create scsi host.\n"); | |
8577 | goto out_unset_driver_resource; | |
8578 | } | |
8579 | ||
8580 | /* Configure sysfs attributes */ | |
8581 | vport = phba->pport; | |
8582 | error = lpfc_alloc_sysfs_attr(vport); | |
8583 | if (error) { | |
8584 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8585 | "1416 Failed to allocate sysfs attr\n"); | |
8586 | goto out_destroy_shost; | |
8587 | } | |
8588 | ||
8589 | shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ | |
8590 | /* Now, trying to enable interrupt and bring up the device */ | |
8591 | cfg_mode = phba->cfg_use_msi; | |
8592 | while (true) { | |
8593 | /* Put device to a known state before enabling interrupt */ | |
8594 | lpfc_stop_port(phba); | |
8595 | /* Configure and enable interrupt */ | |
8596 | intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); | |
8597 | if (intr_mode == LPFC_INTR_ERROR) { | |
8598 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8599 | "0426 Failed to enable interrupt.\n"); | |
8600 | error = -ENODEV; | |
8601 | goto out_free_sysfs_attr; | |
8602 | } | |
8603 | /* Default to single FCP EQ for non-MSI-X */ | |
8604 | if (phba->intr_type != MSIX) | |
8605 | phba->cfg_fcp_eq_count = 1; | |
8606 | else if (phba->sli4_hba.msix_vec_nr < phba->cfg_fcp_eq_count) | |
8607 | phba->cfg_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1; | |
8608 | /* Set up SLI-4 HBA */ | |
8609 | if (lpfc_sli4_hba_setup(phba)) { | |
8610 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8611 | "1421 Failed to set up hba\n"); | |
8612 | error = -ENODEV; | |
8613 | goto out_disable_intr; | |
8614 | } | |
8615 | ||
8616 | /* Send NOP mbx cmds for non-INTx mode active interrupt test */ | |
8617 | if (intr_mode != 0) | |
8618 | mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, | |
8619 | LPFC_ACT_INTR_CNT); | |
8620 | ||
8621 | /* Check active interrupts received only for MSI/MSI-X */ | |
8622 | if (intr_mode == 0 || | |
8623 | phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { | |
8624 | /* Log the current active interrupt mode */ | |
8625 | phba->intr_mode = intr_mode; | |
8626 | lpfc_log_intr_mode(phba, intr_mode); | |
8627 | break; | |
8628 | } | |
8629 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
8630 | "0451 Configure interrupt mode (%d) " | |
8631 | "failed active interrupt test.\n", | |
8632 | intr_mode); | |
8633 | /* Unset the previous SLI-4 HBA setup. */ | |
8634 | /* | |
8635 | * TODO: Is this operation compatible with IF TYPE 2 | |
8636 | * devices? All port state is deleted and cleared. | |
8637 | */ | |
8638 | lpfc_sli4_unset_hba(phba); | |
8639 | /* Try next level of interrupt mode */ | |
8640 | cfg_mode = --intr_mode; | |
8641 | } | |
8642 | ||
8643 | /* Perform post initialization setup */ | |
8644 | lpfc_post_init_setup(phba); | |
8645 | ||
8646 | /* Check if there are static vports to be created. */ | |
8647 | lpfc_create_static_vport(phba); | |
8648 | ||
8649 | return 0; | |
8650 | ||
8651 | out_disable_intr: | |
8652 | lpfc_sli4_disable_intr(phba); | |
8653 | out_free_sysfs_attr: | |
8654 | lpfc_free_sysfs_attr(vport); | |
8655 | out_destroy_shost: | |
8656 | lpfc_destroy_shost(phba); | |
8657 | out_unset_driver_resource: | |
8658 | lpfc_unset_driver_resource_phase2(phba); | |
8659 | out_free_iocb_list: | |
8660 | lpfc_free_iocb_list(phba); | |
8661 | out_unset_driver_resource_s4: | |
8662 | lpfc_sli4_driver_resource_unset(phba); | |
8663 | out_unset_pci_mem_s4: | |
8664 | lpfc_sli4_pci_mem_unset(phba); | |
8665 | out_disable_pci_dev: | |
8666 | lpfc_disable_pci_dev(phba); | |
8667 | if (shost) | |
8668 | scsi_host_put(shost); | |
8669 | out_free_phba: | |
8670 | lpfc_hba_free(phba); | |
8671 | return error; | |
8672 | } | |
8673 | ||
8674 | /** | |
8675 | * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem | |
8676 | * @pdev: pointer to PCI device | |
8677 | * | |
8678 | * This routine is called from the kernel's PCI subsystem to device with | |
8679 | * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is | |
8680 | * removed from PCI bus, it performs all the necessary cleanup for the HBA | |
8681 | * device to be removed from the PCI subsystem properly. | |
8682 | **/ | |
8683 | static void __devexit | |
8684 | lpfc_pci_remove_one_s4(struct pci_dev *pdev) | |
8685 | { | |
8686 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
8687 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
8688 | struct lpfc_vport **vports; | |
8689 | struct lpfc_hba *phba = vport->phba; | |
8690 | int i; | |
8691 | ||
8692 | /* Mark the device unloading flag */ | |
8693 | spin_lock_irq(&phba->hbalock); | |
8694 | vport->load_flag |= FC_UNLOADING; | |
8695 | spin_unlock_irq(&phba->hbalock); | |
8696 | ||
8697 | /* Free the HBA sysfs attributes */ | |
8698 | lpfc_free_sysfs_attr(vport); | |
8699 | ||
8700 | /* Release all the vports against this physical port */ | |
8701 | vports = lpfc_create_vport_work_array(phba); | |
8702 | if (vports != NULL) | |
8703 | for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) | |
8704 | fc_vport_terminate(vports[i]->fc_vport); | |
8705 | lpfc_destroy_vport_work_array(phba, vports); | |
8706 | ||
8707 | /* Remove FC host and then SCSI host with the physical port */ | |
8708 | fc_remove_host(shost); | |
8709 | scsi_remove_host(shost); | |
8710 | ||
8711 | /* Perform cleanup on the physical port */ | |
8712 | lpfc_cleanup(vport); | |
8713 | ||
8714 | /* | |
8715 | * Bring down the SLI Layer. This step disables all interrupts, | |
8716 | * clears the rings, discards all mailbox commands, and resets | |
8717 | * the HBA FCoE function. | |
8718 | */ | |
8719 | lpfc_debugfs_terminate(vport); | |
8720 | lpfc_sli4_hba_unset(phba); | |
8721 | ||
8722 | spin_lock_irq(&phba->hbalock); | |
8723 | list_del_init(&vport->listentry); | |
8724 | spin_unlock_irq(&phba->hbalock); | |
8725 | ||
8726 | /* Perform scsi free before driver resource_unset since scsi | |
8727 | * buffers are released to their corresponding pools here. | |
8728 | */ | |
8729 | lpfc_scsi_free(phba); | |
8730 | lpfc_sli4_driver_resource_unset(phba); | |
8731 | ||
8732 | /* Unmap adapter Control and Doorbell registers */ | |
8733 | lpfc_sli4_pci_mem_unset(phba); | |
8734 | ||
8735 | /* Release PCI resources and disable device's PCI function */ | |
8736 | scsi_host_put(shost); | |
8737 | lpfc_disable_pci_dev(phba); | |
8738 | ||
8739 | /* Finally, free the driver's device data structure */ | |
8740 | lpfc_hba_free(phba); | |
8741 | ||
8742 | return; | |
8743 | } | |
8744 | ||
8745 | /** | |
8746 | * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt | |
8747 | * @pdev: pointer to PCI device | |
8748 | * @msg: power management message | |
8749 | * | |
8750 | * This routine is called from the kernel's PCI subsystem to support system | |
8751 | * Power Management (PM) to device with SLI-4 interface spec. When PM invokes | |
8752 | * this method, it quiesces the device by stopping the driver's worker | |
8753 | * thread for the device, turning off device's interrupt and DMA, and bring | |
8754 | * the device offline. Note that as the driver implements the minimum PM | |
8755 | * requirements to a power-aware driver's PM support for suspend/resume -- all | |
8756 | * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() | |
8757 | * method call will be treated as SUSPEND and the driver will fully | |
8758 | * reinitialize its device during resume() method call, the driver will set | |
8759 | * device to PCI_D3hot state in PCI config space instead of setting it | |
8760 | * according to the @msg provided by the PM. | |
8761 | * | |
8762 | * Return code | |
8763 | * 0 - driver suspended the device | |
8764 | * Error otherwise | |
8765 | **/ | |
8766 | static int | |
8767 | lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) | |
8768 | { | |
8769 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
8770 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
8771 | ||
8772 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
8773 | "2843 PCI device Power Management suspend.\n"); | |
8774 | ||
8775 | /* Bring down the device */ | |
8776 | lpfc_offline_prep(phba); | |
8777 | lpfc_offline(phba); | |
8778 | kthread_stop(phba->worker_thread); | |
8779 | ||
8780 | /* Disable interrupt from device */ | |
8781 | lpfc_sli4_disable_intr(phba); | |
8782 | ||
8783 | /* Save device state to PCI config space */ | |
8784 | pci_save_state(pdev); | |
8785 | pci_set_power_state(pdev, PCI_D3hot); | |
8786 | ||
8787 | return 0; | |
8788 | } | |
8789 | ||
8790 | /** | |
8791 | * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt | |
8792 | * @pdev: pointer to PCI device | |
8793 | * | |
8794 | * This routine is called from the kernel's PCI subsystem to support system | |
8795 | * Power Management (PM) to device with SLI-4 interface spac. When PM invokes | |
8796 | * this method, it restores the device's PCI config space state and fully | |
8797 | * reinitializes the device and brings it online. Note that as the driver | |
8798 | * implements the minimum PM requirements to a power-aware driver's PM for | |
8799 | * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) | |
8800 | * to the suspend() method call will be treated as SUSPEND and the driver | |
8801 | * will fully reinitialize its device during resume() method call, the device | |
8802 | * will be set to PCI_D0 directly in PCI config space before restoring the | |
8803 | * state. | |
8804 | * | |
8805 | * Return code | |
8806 | * 0 - driver suspended the device | |
8807 | * Error otherwise | |
8808 | **/ | |
8809 | static int | |
8810 | lpfc_pci_resume_one_s4(struct pci_dev *pdev) | |
8811 | { | |
8812 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
8813 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
8814 | uint32_t intr_mode; | |
8815 | int error; | |
8816 | ||
8817 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
8818 | "0292 PCI device Power Management resume.\n"); | |
8819 | ||
8820 | /* Restore device state from PCI config space */ | |
8821 | pci_set_power_state(pdev, PCI_D0); | |
8822 | pci_restore_state(pdev); | |
8823 | ||
8824 | /* | |
8825 | * As the new kernel behavior of pci_restore_state() API call clears | |
8826 | * device saved_state flag, need to save the restored state again. | |
8827 | */ | |
8828 | pci_save_state(pdev); | |
8829 | ||
8830 | if (pdev->is_busmaster) | |
8831 | pci_set_master(pdev); | |
8832 | ||
8833 | /* Startup the kernel thread for this host adapter. */ | |
8834 | phba->worker_thread = kthread_run(lpfc_do_work, phba, | |
8835 | "lpfc_worker_%d", phba->brd_no); | |
8836 | if (IS_ERR(phba->worker_thread)) { | |
8837 | error = PTR_ERR(phba->worker_thread); | |
8838 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8839 | "0293 PM resume failed to start worker " | |
8840 | "thread: error=x%x.\n", error); | |
8841 | return error; | |
8842 | } | |
8843 | ||
8844 | /* Configure and enable interrupt */ | |
8845 | intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); | |
8846 | if (intr_mode == LPFC_INTR_ERROR) { | |
8847 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8848 | "0294 PM resume Failed to enable interrupt\n"); | |
8849 | return -EIO; | |
8850 | } else | |
8851 | phba->intr_mode = intr_mode; | |
8852 | ||
8853 | /* Restart HBA and bring it online */ | |
8854 | lpfc_sli_brdrestart(phba); | |
8855 | lpfc_online(phba); | |
8856 | ||
8857 | /* Log the current active interrupt mode */ | |
8858 | lpfc_log_intr_mode(phba, phba->intr_mode); | |
8859 | ||
8860 | return 0; | |
8861 | } | |
8862 | ||
8863 | /** | |
8864 | * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover | |
8865 | * @phba: pointer to lpfc hba data structure. | |
8866 | * | |
8867 | * This routine is called to prepare the SLI4 device for PCI slot recover. It | |
8868 | * aborts all the outstanding SCSI I/Os to the pci device. | |
8869 | **/ | |
8870 | static void | |
8871 | lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) | |
8872 | { | |
8873 | struct lpfc_sli *psli = &phba->sli; | |
8874 | struct lpfc_sli_ring *pring; | |
8875 | ||
8876 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8877 | "2828 PCI channel I/O abort preparing for recovery\n"); | |
8878 | /* | |
8879 | * There may be errored I/Os through HBA, abort all I/Os on txcmplq | |
8880 | * and let the SCSI mid-layer to retry them to recover. | |
8881 | */ | |
8882 | pring = &psli->ring[psli->fcp_ring]; | |
8883 | lpfc_sli_abort_iocb_ring(phba, pring); | |
8884 | } | |
8885 | ||
8886 | /** | |
8887 | * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset | |
8888 | * @phba: pointer to lpfc hba data structure. | |
8889 | * | |
8890 | * This routine is called to prepare the SLI4 device for PCI slot reset. It | |
8891 | * disables the device interrupt and pci device, and aborts the internal FCP | |
8892 | * pending I/Os. | |
8893 | **/ | |
8894 | static void | |
8895 | lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) | |
8896 | { | |
8897 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8898 | "2826 PCI channel disable preparing for reset\n"); | |
8899 | ||
8900 | /* Block any management I/Os to the device */ | |
8901 | lpfc_block_mgmt_io(phba); | |
8902 | ||
8903 | /* Block all SCSI devices' I/Os on the host */ | |
8904 | lpfc_scsi_dev_block(phba); | |
8905 | ||
8906 | /* stop all timers */ | |
8907 | lpfc_stop_hba_timers(phba); | |
8908 | ||
8909 | /* Disable interrupt and pci device */ | |
8910 | lpfc_sli4_disable_intr(phba); | |
8911 | pci_disable_device(phba->pcidev); | |
8912 | ||
8913 | /* Flush all driver's outstanding SCSI I/Os as we are to reset */ | |
8914 | lpfc_sli_flush_fcp_rings(phba); | |
8915 | } | |
8916 | ||
8917 | /** | |
8918 | * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable | |
8919 | * @phba: pointer to lpfc hba data structure. | |
8920 | * | |
8921 | * This routine is called to prepare the SLI4 device for PCI slot permanently | |
8922 | * disabling. It blocks the SCSI transport layer traffic and flushes the FCP | |
8923 | * pending I/Os. | |
8924 | **/ | |
8925 | static void | |
8926 | lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) | |
8927 | { | |
8928 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8929 | "2827 PCI channel permanent disable for failure\n"); | |
8930 | ||
8931 | /* Block all SCSI devices' I/Os on the host */ | |
8932 | lpfc_scsi_dev_block(phba); | |
8933 | ||
8934 | /* stop all timers */ | |
8935 | lpfc_stop_hba_timers(phba); | |
8936 | ||
8937 | /* Clean up all driver's outstanding SCSI I/Os */ | |
8938 | lpfc_sli_flush_fcp_rings(phba); | |
8939 | } | |
8940 | ||
8941 | /** | |
8942 | * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device | |
8943 | * @pdev: pointer to PCI device. | |
8944 | * @state: the current PCI connection state. | |
8945 | * | |
8946 | * This routine is called from the PCI subsystem for error handling to device | |
8947 | * with SLI-4 interface spec. This function is called by the PCI subsystem | |
8948 | * after a PCI bus error affecting this device has been detected. When this | |
8949 | * function is invoked, it will need to stop all the I/Os and interrupt(s) | |
8950 | * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET | |
8951 | * for the PCI subsystem to perform proper recovery as desired. | |
8952 | * | |
8953 | * Return codes | |
8954 | * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery | |
8955 | * PCI_ERS_RESULT_DISCONNECT - device could not be recovered | |
8956 | **/ | |
8957 | static pci_ers_result_t | |
8958 | lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) | |
8959 | { | |
8960 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
8961 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
8962 | ||
8963 | switch (state) { | |
8964 | case pci_channel_io_normal: | |
8965 | /* Non-fatal error, prepare for recovery */ | |
8966 | lpfc_sli4_prep_dev_for_recover(phba); | |
8967 | return PCI_ERS_RESULT_CAN_RECOVER; | |
8968 | case pci_channel_io_frozen: | |
8969 | /* Fatal error, prepare for slot reset */ | |
8970 | lpfc_sli4_prep_dev_for_reset(phba); | |
8971 | return PCI_ERS_RESULT_NEED_RESET; | |
8972 | case pci_channel_io_perm_failure: | |
8973 | /* Permanent failure, prepare for device down */ | |
8974 | lpfc_sli4_prep_dev_for_perm_failure(phba); | |
8975 | return PCI_ERS_RESULT_DISCONNECT; | |
8976 | default: | |
8977 | /* Unknown state, prepare and request slot reset */ | |
8978 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8979 | "2825 Unknown PCI error state: x%x\n", state); | |
8980 | lpfc_sli4_prep_dev_for_reset(phba); | |
8981 | return PCI_ERS_RESULT_NEED_RESET; | |
8982 | } | |
8983 | } | |
8984 | ||
8985 | /** | |
8986 | * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch | |
8987 | * @pdev: pointer to PCI device. | |
8988 | * | |
8989 | * This routine is called from the PCI subsystem for error handling to device | |
8990 | * with SLI-4 interface spec. It is called after PCI bus has been reset to | |
8991 | * restart the PCI card from scratch, as if from a cold-boot. During the | |
8992 | * PCI subsystem error recovery, after the driver returns | |
8993 | * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error | |
8994 | * recovery and then call this routine before calling the .resume method to | |
8995 | * recover the device. This function will initialize the HBA device, enable | |
8996 | * the interrupt, but it will just put the HBA to offline state without | |
8997 | * passing any I/O traffic. | |
8998 | * | |
8999 | * Return codes | |
9000 | * PCI_ERS_RESULT_RECOVERED - the device has been recovered | |
9001 | * PCI_ERS_RESULT_DISCONNECT - device could not be recovered | |
9002 | */ | |
9003 | static pci_ers_result_t | |
9004 | lpfc_io_slot_reset_s4(struct pci_dev *pdev) | |
9005 | { | |
9006 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
9007 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
9008 | struct lpfc_sli *psli = &phba->sli; | |
9009 | uint32_t intr_mode; | |
9010 | ||
9011 | dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); | |
9012 | if (pci_enable_device_mem(pdev)) { | |
9013 | printk(KERN_ERR "lpfc: Cannot re-enable " | |
9014 | "PCI device after reset.\n"); | |
9015 | return PCI_ERS_RESULT_DISCONNECT; | |
9016 | } | |
9017 | ||
9018 | pci_restore_state(pdev); | |
9019 | if (pdev->is_busmaster) | |
9020 | pci_set_master(pdev); | |
9021 | ||
9022 | spin_lock_irq(&phba->hbalock); | |
9023 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; | |
9024 | spin_unlock_irq(&phba->hbalock); | |
9025 | ||
9026 | /* Configure and enable interrupt */ | |
9027 | intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); | |
9028 | if (intr_mode == LPFC_INTR_ERROR) { | |
9029 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9030 | "2824 Cannot re-enable interrupt after " | |
9031 | "slot reset.\n"); | |
9032 | return PCI_ERS_RESULT_DISCONNECT; | |
9033 | } else | |
9034 | phba->intr_mode = intr_mode; | |
9035 | ||
9036 | /* Log the current active interrupt mode */ | |
9037 | lpfc_log_intr_mode(phba, phba->intr_mode); | |
9038 | ||
9039 | return PCI_ERS_RESULT_RECOVERED; | |
9040 | } | |
9041 | ||
9042 | /** | |
9043 | * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device | |
9044 | * @pdev: pointer to PCI device | |
9045 | * | |
9046 | * This routine is called from the PCI subsystem for error handling to device | |
9047 | * with SLI-4 interface spec. It is called when kernel error recovery tells | |
9048 | * the lpfc driver that it is ok to resume normal PCI operation after PCI bus | |
9049 | * error recovery. After this call, traffic can start to flow from this device | |
9050 | * again. | |
9051 | **/ | |
9052 | static void | |
9053 | lpfc_io_resume_s4(struct pci_dev *pdev) | |
9054 | { | |
9055 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
9056 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
9057 | ||
9058 | /* | |
9059 | * In case of slot reset, as function reset is performed through | |
9060 | * mailbox command which needs DMA to be enabled, this operation | |
9061 | * has to be moved to the io resume phase. Taking device offline | |
9062 | * will perform the necessary cleanup. | |
9063 | */ | |
9064 | if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { | |
9065 | /* Perform device reset */ | |
9066 | lpfc_offline_prep(phba); | |
9067 | lpfc_offline(phba); | |
9068 | lpfc_sli_brdrestart(phba); | |
9069 | /* Bring the device back online */ | |
9070 | lpfc_online(phba); | |
9071 | } | |
9072 | ||
9073 | /* Clean up Advanced Error Reporting (AER) if needed */ | |
9074 | if (phba->hba_flag & HBA_AER_ENABLED) | |
9075 | pci_cleanup_aer_uncorrect_error_status(pdev); | |
9076 | } | |
9077 | ||
9078 | /** | |
9079 | * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem | |
9080 | * @pdev: pointer to PCI device | |
9081 | * @pid: pointer to PCI device identifier | |
9082 | * | |
9083 | * This routine is to be registered to the kernel's PCI subsystem. When an | |
9084 | * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks | |
9085 | * at PCI device-specific information of the device and driver to see if the | |
9086 | * driver state that it can support this kind of device. If the match is | |
9087 | * successful, the driver core invokes this routine. This routine dispatches | |
9088 | * the action to the proper SLI-3 or SLI-4 device probing routine, which will | |
9089 | * do all the initialization that it needs to do to handle the HBA device | |
9090 | * properly. | |
9091 | * | |
9092 | * Return code | |
9093 | * 0 - driver can claim the device | |
9094 | * negative value - driver can not claim the device | |
9095 | **/ | |
9096 | static int __devinit | |
9097 | lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) | |
9098 | { | |
9099 | int rc; | |
9100 | struct lpfc_sli_intf intf; | |
9101 | ||
9102 | if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) | |
9103 | return -ENODEV; | |
9104 | ||
9105 | if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && | |
9106 | (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) | |
9107 | rc = lpfc_pci_probe_one_s4(pdev, pid); | |
9108 | else | |
9109 | rc = lpfc_pci_probe_one_s3(pdev, pid); | |
9110 | ||
9111 | return rc; | |
9112 | } | |
9113 | ||
9114 | /** | |
9115 | * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem | |
9116 | * @pdev: pointer to PCI device | |
9117 | * | |
9118 | * This routine is to be registered to the kernel's PCI subsystem. When an | |
9119 | * Emulex HBA is removed from PCI bus, the driver core invokes this routine. | |
9120 | * This routine dispatches the action to the proper SLI-3 or SLI-4 device | |
9121 | * remove routine, which will perform all the necessary cleanup for the | |
9122 | * device to be removed from the PCI subsystem properly. | |
9123 | **/ | |
9124 | static void __devexit | |
9125 | lpfc_pci_remove_one(struct pci_dev *pdev) | |
9126 | { | |
9127 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
9128 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
9129 | ||
9130 | switch (phba->pci_dev_grp) { | |
9131 | case LPFC_PCI_DEV_LP: | |
9132 | lpfc_pci_remove_one_s3(pdev); | |
9133 | break; | |
9134 | case LPFC_PCI_DEV_OC: | |
9135 | lpfc_pci_remove_one_s4(pdev); | |
9136 | break; | |
9137 | default: | |
9138 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9139 | "1424 Invalid PCI device group: 0x%x\n", | |
9140 | phba->pci_dev_grp); | |
9141 | break; | |
9142 | } | |
9143 | return; | |
9144 | } | |
9145 | ||
9146 | /** | |
9147 | * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management | |
9148 | * @pdev: pointer to PCI device | |
9149 | * @msg: power management message | |
9150 | * | |
9151 | * This routine is to be registered to the kernel's PCI subsystem to support | |
9152 | * system Power Management (PM). When PM invokes this method, it dispatches | |
9153 | * the action to the proper SLI-3 or SLI-4 device suspend routine, which will | |
9154 | * suspend the device. | |
9155 | * | |
9156 | * Return code | |
9157 | * 0 - driver suspended the device | |
9158 | * Error otherwise | |
9159 | **/ | |
9160 | static int | |
9161 | lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) | |
9162 | { | |
9163 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
9164 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
9165 | int rc = -ENODEV; | |
9166 | ||
9167 | switch (phba->pci_dev_grp) { | |
9168 | case LPFC_PCI_DEV_LP: | |
9169 | rc = lpfc_pci_suspend_one_s3(pdev, msg); | |
9170 | break; | |
9171 | case LPFC_PCI_DEV_OC: | |
9172 | rc = lpfc_pci_suspend_one_s4(pdev, msg); | |
9173 | break; | |
9174 | default: | |
9175 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9176 | "1425 Invalid PCI device group: 0x%x\n", | |
9177 | phba->pci_dev_grp); | |
9178 | break; | |
9179 | } | |
9180 | return rc; | |
9181 | } | |
9182 | ||
9183 | /** | |
9184 | * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management | |
9185 | * @pdev: pointer to PCI device | |
9186 | * | |
9187 | * This routine is to be registered to the kernel's PCI subsystem to support | |
9188 | * system Power Management (PM). When PM invokes this method, it dispatches | |
9189 | * the action to the proper SLI-3 or SLI-4 device resume routine, which will | |
9190 | * resume the device. | |
9191 | * | |
9192 | * Return code | |
9193 | * 0 - driver suspended the device | |
9194 | * Error otherwise | |
9195 | **/ | |
9196 | static int | |
9197 | lpfc_pci_resume_one(struct pci_dev *pdev) | |
9198 | { | |
9199 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
9200 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
9201 | int rc = -ENODEV; | |
9202 | ||
9203 | switch (phba->pci_dev_grp) { | |
9204 | case LPFC_PCI_DEV_LP: | |
9205 | rc = lpfc_pci_resume_one_s3(pdev); | |
9206 | break; | |
9207 | case LPFC_PCI_DEV_OC: | |
9208 | rc = lpfc_pci_resume_one_s4(pdev); | |
9209 | break; | |
9210 | default: | |
9211 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9212 | "1426 Invalid PCI device group: 0x%x\n", | |
9213 | phba->pci_dev_grp); | |
9214 | break; | |
9215 | } | |
9216 | return rc; | |
9217 | } | |
9218 | ||
9219 | /** | |
9220 | * lpfc_io_error_detected - lpfc method for handling PCI I/O error | |
9221 | * @pdev: pointer to PCI device. | |
9222 | * @state: the current PCI connection state. | |
9223 | * | |
9224 | * This routine is registered to the PCI subsystem for error handling. This | |
9225 | * function is called by the PCI subsystem after a PCI bus error affecting | |
9226 | * this device has been detected. When this routine is invoked, it dispatches | |
9227 | * the action to the proper SLI-3 or SLI-4 device error detected handling | |
9228 | * routine, which will perform the proper error detected operation. | |
9229 | * | |
9230 | * Return codes | |
9231 | * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery | |
9232 | * PCI_ERS_RESULT_DISCONNECT - device could not be recovered | |
9233 | **/ | |
9234 | static pci_ers_result_t | |
9235 | lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) | |
9236 | { | |
9237 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
9238 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
9239 | pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; | |
9240 | ||
9241 | switch (phba->pci_dev_grp) { | |
9242 | case LPFC_PCI_DEV_LP: | |
9243 | rc = lpfc_io_error_detected_s3(pdev, state); | |
9244 | break; | |
9245 | case LPFC_PCI_DEV_OC: | |
9246 | rc = lpfc_io_error_detected_s4(pdev, state); | |
9247 | break; | |
9248 | default: | |
9249 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9250 | "1427 Invalid PCI device group: 0x%x\n", | |
9251 | phba->pci_dev_grp); | |
9252 | break; | |
9253 | } | |
9254 | return rc; | |
9255 | } | |
9256 | ||
9257 | /** | |
9258 | * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch | |
9259 | * @pdev: pointer to PCI device. | |
9260 | * | |
9261 | * This routine is registered to the PCI subsystem for error handling. This | |
9262 | * function is called after PCI bus has been reset to restart the PCI card | |
9263 | * from scratch, as if from a cold-boot. When this routine is invoked, it | |
9264 | * dispatches the action to the proper SLI-3 or SLI-4 device reset handling | |
9265 | * routine, which will perform the proper device reset. | |
9266 | * | |
9267 | * Return codes | |
9268 | * PCI_ERS_RESULT_RECOVERED - the device has been recovered | |
9269 | * PCI_ERS_RESULT_DISCONNECT - device could not be recovered | |
9270 | **/ | |
9271 | static pci_ers_result_t | |
9272 | lpfc_io_slot_reset(struct pci_dev *pdev) | |
9273 | { | |
9274 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
9275 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
9276 | pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; | |
9277 | ||
9278 | switch (phba->pci_dev_grp) { | |
9279 | case LPFC_PCI_DEV_LP: | |
9280 | rc = lpfc_io_slot_reset_s3(pdev); | |
9281 | break; | |
9282 | case LPFC_PCI_DEV_OC: | |
9283 | rc = lpfc_io_slot_reset_s4(pdev); | |
9284 | break; | |
9285 | default: | |
9286 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9287 | "1428 Invalid PCI device group: 0x%x\n", | |
9288 | phba->pci_dev_grp); | |
9289 | break; | |
9290 | } | |
9291 | return rc; | |
9292 | } | |
9293 | ||
9294 | /** | |
9295 | * lpfc_io_resume - lpfc method for resuming PCI I/O operation | |
9296 | * @pdev: pointer to PCI device | |
9297 | * | |
9298 | * This routine is registered to the PCI subsystem for error handling. It | |
9299 | * is called when kernel error recovery tells the lpfc driver that it is | |
9300 | * OK to resume normal PCI operation after PCI bus error recovery. When | |
9301 | * this routine is invoked, it dispatches the action to the proper SLI-3 | |
9302 | * or SLI-4 device io_resume routine, which will resume the device operation. | |
9303 | **/ | |
9304 | static void | |
9305 | lpfc_io_resume(struct pci_dev *pdev) | |
9306 | { | |
9307 | struct Scsi_Host *shost = pci_get_drvdata(pdev); | |
9308 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
9309 | ||
9310 | switch (phba->pci_dev_grp) { | |
9311 | case LPFC_PCI_DEV_LP: | |
9312 | lpfc_io_resume_s3(pdev); | |
9313 | break; | |
9314 | case LPFC_PCI_DEV_OC: | |
9315 | lpfc_io_resume_s4(pdev); | |
9316 | break; | |
9317 | default: | |
9318 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9319 | "1429 Invalid PCI device group: 0x%x\n", | |
9320 | phba->pci_dev_grp); | |
9321 | break; | |
9322 | } | |
9323 | return; | |
9324 | } | |
9325 | ||
9326 | static struct pci_device_id lpfc_id_table[] = { | |
9327 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, | |
9328 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9329 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, | |
9330 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9331 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, | |
9332 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9333 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, | |
9334 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9335 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, | |
9336 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9337 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, | |
9338 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9339 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, | |
9340 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9341 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, | |
9342 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9343 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, | |
9344 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9345 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, | |
9346 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9347 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, | |
9348 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9349 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, | |
9350 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9351 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, | |
9352 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9353 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, | |
9354 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9355 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, | |
9356 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9357 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, | |
9358 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9359 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, | |
9360 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9361 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, | |
9362 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9363 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, | |
9364 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9365 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, | |
9366 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9367 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, | |
9368 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9369 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, | |
9370 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9371 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, | |
9372 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9373 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, | |
9374 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9375 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, | |
9376 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9377 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, | |
9378 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9379 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, | |
9380 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9381 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, | |
9382 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9383 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, | |
9384 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9385 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, | |
9386 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9387 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, | |
9388 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9389 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, | |
9390 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9391 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, | |
9392 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9393 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, | |
9394 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9395 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, | |
9396 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9397 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, | |
9398 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9399 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, | |
9400 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9401 | {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, | |
9402 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9403 | {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, | |
9404 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9405 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, | |
9406 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9407 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, | |
9408 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9409 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, | |
9410 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9411 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, | |
9412 | PCI_ANY_ID, PCI_ANY_ID, }, | |
9413 | { 0 } | |
9414 | }; | |
9415 | ||
9416 | MODULE_DEVICE_TABLE(pci, lpfc_id_table); | |
9417 | ||
9418 | static struct pci_error_handlers lpfc_err_handler = { | |
9419 | .error_detected = lpfc_io_error_detected, | |
9420 | .slot_reset = lpfc_io_slot_reset, | |
9421 | .resume = lpfc_io_resume, | |
9422 | }; | |
9423 | ||
9424 | static struct pci_driver lpfc_driver = { | |
9425 | .name = LPFC_DRIVER_NAME, | |
9426 | .id_table = lpfc_id_table, | |
9427 | .probe = lpfc_pci_probe_one, | |
9428 | .remove = __devexit_p(lpfc_pci_remove_one), | |
9429 | .suspend = lpfc_pci_suspend_one, | |
9430 | .resume = lpfc_pci_resume_one, | |
9431 | .err_handler = &lpfc_err_handler, | |
9432 | }; | |
9433 | ||
9434 | /** | |
9435 | * lpfc_init - lpfc module initialization routine | |
9436 | * | |
9437 | * This routine is to be invoked when the lpfc module is loaded into the | |
9438 | * kernel. The special kernel macro module_init() is used to indicate the | |
9439 | * role of this routine to the kernel as lpfc module entry point. | |
9440 | * | |
9441 | * Return codes | |
9442 | * 0 - successful | |
9443 | * -ENOMEM - FC attach transport failed | |
9444 | * all others - failed | |
9445 | */ | |
9446 | static int __init | |
9447 | lpfc_init(void) | |
9448 | { | |
9449 | int error = 0; | |
9450 | ||
9451 | printk(LPFC_MODULE_DESC "\n"); | |
9452 | printk(LPFC_COPYRIGHT "\n"); | |
9453 | ||
9454 | if (lpfc_enable_npiv) { | |
9455 | lpfc_transport_functions.vport_create = lpfc_vport_create; | |
9456 | lpfc_transport_functions.vport_delete = lpfc_vport_delete; | |
9457 | } | |
9458 | lpfc_transport_template = | |
9459 | fc_attach_transport(&lpfc_transport_functions); | |
9460 | if (lpfc_transport_template == NULL) | |
9461 | return -ENOMEM; | |
9462 | if (lpfc_enable_npiv) { | |
9463 | lpfc_vport_transport_template = | |
9464 | fc_attach_transport(&lpfc_vport_transport_functions); | |
9465 | if (lpfc_vport_transport_template == NULL) { | |
9466 | fc_release_transport(lpfc_transport_template); | |
9467 | return -ENOMEM; | |
9468 | } | |
9469 | } | |
9470 | error = pci_register_driver(&lpfc_driver); | |
9471 | if (error) { | |
9472 | fc_release_transport(lpfc_transport_template); | |
9473 | if (lpfc_enable_npiv) | |
9474 | fc_release_transport(lpfc_vport_transport_template); | |
9475 | } | |
9476 | ||
9477 | return error; | |
9478 | } | |
9479 | ||
9480 | /** | |
9481 | * lpfc_exit - lpfc module removal routine | |
9482 | * | |
9483 | * This routine is invoked when the lpfc module is removed from the kernel. | |
9484 | * The special kernel macro module_exit() is used to indicate the role of | |
9485 | * this routine to the kernel as lpfc module exit point. | |
9486 | */ | |
9487 | static void __exit | |
9488 | lpfc_exit(void) | |
9489 | { | |
9490 | pci_unregister_driver(&lpfc_driver); | |
9491 | fc_release_transport(lpfc_transport_template); | |
9492 | if (lpfc_enable_npiv) | |
9493 | fc_release_transport(lpfc_vport_transport_template); | |
9494 | if (_dump_buf_data) { | |
9495 | printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " | |
9496 | "_dump_buf_data at 0x%p\n", | |
9497 | (1L << _dump_buf_data_order), _dump_buf_data); | |
9498 | free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); | |
9499 | } | |
9500 | ||
9501 | if (_dump_buf_dif) { | |
9502 | printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " | |
9503 | "_dump_buf_dif at 0x%p\n", | |
9504 | (1L << _dump_buf_dif_order), _dump_buf_dif); | |
9505 | free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); | |
9506 | } | |
9507 | } | |
9508 | ||
9509 | module_init(lpfc_init); | |
9510 | module_exit(lpfc_exit); | |
9511 | MODULE_LICENSE("GPL"); | |
9512 | MODULE_DESCRIPTION(LPFC_MODULE_DESC); | |
9513 | MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); | |
9514 | MODULE_VERSION("0:" LPFC_DRIVER_VERSION); |