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dea3101e JB |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
e47c9093 | 4 | * Copyright (C) 2004-2008 Emulex. All rights reserved. * |
c44ce173 | 5 | * EMULEX and SLI are trademarks of Emulex. * |
dea3101e | 6 | * www.emulex.com * |
c44ce173 | 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e JB |
8 | * * |
9 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
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. * | |
dea3101e JB |
20 | *******************************************************************/ |
21 | ||
dea3101e JB |
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> | |
92d7f7b0 | 30 | #include <linux/ctype.h> |
dea3101e | 31 | |
91886523 | 32 | #include <scsi/scsi.h> |
dea3101e JB |
33 | #include <scsi/scsi_device.h> |
34 | #include <scsi/scsi_host.h> | |
35 | #include <scsi/scsi_transport_fc.h> | |
36 | ||
37 | #include "lpfc_hw.h" | |
38 | #include "lpfc_sli.h" | |
39 | #include "lpfc_disc.h" | |
40 | #include "lpfc_scsi.h" | |
41 | #include "lpfc.h" | |
42 | #include "lpfc_logmsg.h" | |
43 | #include "lpfc_crtn.h" | |
92d7f7b0 | 44 | #include "lpfc_vport.h" |
dea3101e JB |
45 | #include "lpfc_version.h" |
46 | ||
74b72a59 | 47 | static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int); |
dea3101e JB |
48 | static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); |
49 | static int lpfc_post_rcv_buf(struct lpfc_hba *); | |
50 | ||
51 | static struct scsi_transport_template *lpfc_transport_template = NULL; | |
92d7f7b0 | 52 | static struct scsi_transport_template *lpfc_vport_transport_template = NULL; |
dea3101e JB |
53 | static DEFINE_IDR(lpfc_hba_index); |
54 | ||
e59058c4 JS |
55 | /** |
56 | * lpfc_config_port_prep: Perform lpfc initialization prior to config port. | |
57 | * @phba: pointer to lpfc hba data structure. | |
58 | * | |
59 | * This routine will do LPFC initialization prior to issuing the CONFIG_PORT | |
60 | * mailbox command. It retrieves the revision information from the HBA and | |
61 | * collects the Vital Product Data (VPD) about the HBA for preparing the | |
62 | * configuration of the HBA. | |
63 | * | |
64 | * Return codes: | |
65 | * 0 - success. | |
66 | * -ERESTART - requests the SLI layer to reset the HBA and try again. | |
67 | * Any other value - indicates an error. | |
68 | **/ | |
dea3101e | 69 | int |
2e0fef85 | 70 | lpfc_config_port_prep(struct lpfc_hba *phba) |
dea3101e JB |
71 | { |
72 | lpfc_vpd_t *vp = &phba->vpd; | |
73 | int i = 0, rc; | |
74 | LPFC_MBOXQ_t *pmb; | |
75 | MAILBOX_t *mb; | |
76 | char *lpfc_vpd_data = NULL; | |
77 | uint16_t offset = 0; | |
78 | static char licensed[56] = | |
79 | "key unlock for use with gnu public licensed code only\0"; | |
65a29c16 | 80 | static int init_key = 1; |
dea3101e JB |
81 | |
82 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
83 | if (!pmb) { | |
2e0fef85 | 84 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
85 | return -ENOMEM; |
86 | } | |
87 | ||
88 | mb = &pmb->mb; | |
2e0fef85 | 89 | phba->link_state = LPFC_INIT_MBX_CMDS; |
dea3101e JB |
90 | |
91 | if (lpfc_is_LC_HBA(phba->pcidev->device)) { | |
65a29c16 JS |
92 | if (init_key) { |
93 | uint32_t *ptext = (uint32_t *) licensed; | |
dea3101e | 94 | |
65a29c16 JS |
95 | for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) |
96 | *ptext = cpu_to_be32(*ptext); | |
97 | init_key = 0; | |
98 | } | |
dea3101e JB |
99 | |
100 | lpfc_read_nv(phba, pmb); | |
101 | memset((char*)mb->un.varRDnvp.rsvd3, 0, | |
102 | sizeof (mb->un.varRDnvp.rsvd3)); | |
103 | memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, | |
104 | sizeof (licensed)); | |
105 | ||
106 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
107 | ||
108 | if (rc != MBX_SUCCESS) { | |
ed957684 | 109 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, |
e8b62011 | 110 | "0324 Config Port initialization " |
dea3101e JB |
111 | "error, mbxCmd x%x READ_NVPARM, " |
112 | "mbxStatus x%x\n", | |
dea3101e JB |
113 | mb->mbxCommand, mb->mbxStatus); |
114 | mempool_free(pmb, phba->mbox_mem_pool); | |
115 | return -ERESTART; | |
116 | } | |
117 | memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, | |
2e0fef85 JS |
118 | sizeof(phba->wwnn)); |
119 | memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, | |
120 | sizeof(phba->wwpn)); | |
dea3101e JB |
121 | } |
122 | ||
92d7f7b0 JS |
123 | phba->sli3_options = 0x0; |
124 | ||
dea3101e JB |
125 | /* Setup and issue mailbox READ REV command */ |
126 | lpfc_read_rev(phba, pmb); | |
127 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
128 | if (rc != MBX_SUCCESS) { | |
ed957684 | 129 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 130 | "0439 Adapter failed to init, mbxCmd x%x " |
dea3101e | 131 | "READ_REV, mbxStatus x%x\n", |
dea3101e JB |
132 | mb->mbxCommand, mb->mbxStatus); |
133 | mempool_free( pmb, phba->mbox_mem_pool); | |
134 | return -ERESTART; | |
135 | } | |
136 | ||
92d7f7b0 | 137 | |
1de933f3 JSEC |
138 | /* |
139 | * The value of rr must be 1 since the driver set the cv field to 1. | |
140 | * This setting requires the FW to set all revision fields. | |
dea3101e | 141 | */ |
1de933f3 | 142 | if (mb->un.varRdRev.rr == 0) { |
dea3101e | 143 | vp->rev.rBit = 0; |
1de933f3 | 144 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 JS |
145 | "0440 Adapter failed to init, READ_REV has " |
146 | "missing revision information.\n"); | |
dea3101e JB |
147 | mempool_free(pmb, phba->mbox_mem_pool); |
148 | return -ERESTART; | |
dea3101e JB |
149 | } |
150 | ||
495a714c JS |
151 | if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { |
152 | mempool_free(pmb, phba->mbox_mem_pool); | |
ed957684 | 153 | return -EINVAL; |
495a714c | 154 | } |
ed957684 | 155 | |
dea3101e | 156 | /* Save information as VPD data */ |
1de933f3 | 157 | vp->rev.rBit = 1; |
92d7f7b0 | 158 | memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); |
1de933f3 JSEC |
159 | vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; |
160 | memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); | |
161 | vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; | |
162 | memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); | |
dea3101e JB |
163 | vp->rev.biuRev = mb->un.varRdRev.biuRev; |
164 | vp->rev.smRev = mb->un.varRdRev.smRev; | |
165 | vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; | |
166 | vp->rev.endecRev = mb->un.varRdRev.endecRev; | |
167 | vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; | |
168 | vp->rev.fcphLow = mb->un.varRdRev.fcphLow; | |
169 | vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; | |
170 | vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; | |
171 | vp->rev.postKernRev = mb->un.varRdRev.postKernRev; | |
172 | vp->rev.opFwRev = mb->un.varRdRev.opFwRev; | |
173 | ||
92d7f7b0 JS |
174 | /* If the sli feature level is less then 9, we must |
175 | * tear down all RPIs and VPIs on link down if NPIV | |
176 | * is enabled. | |
177 | */ | |
178 | if (vp->rev.feaLevelHigh < 9) | |
179 | phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; | |
180 | ||
dea3101e JB |
181 | if (lpfc_is_LC_HBA(phba->pcidev->device)) |
182 | memcpy(phba->RandomData, (char *)&mb->un.varWords[24], | |
183 | sizeof (phba->RandomData)); | |
184 | ||
dea3101e JB |
185 | /* Get adapter VPD information */ |
186 | pmb->context2 = kmalloc(DMP_RSP_SIZE, GFP_KERNEL); | |
187 | if (!pmb->context2) | |
188 | goto out_free_mbox; | |
189 | lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); | |
190 | if (!lpfc_vpd_data) | |
191 | goto out_free_context2; | |
192 | ||
193 | do { | |
194 | lpfc_dump_mem(phba, pmb, offset); | |
195 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
196 | ||
197 | if (rc != MBX_SUCCESS) { | |
198 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
e8b62011 | 199 | "0441 VPD not present on adapter, " |
dea3101e | 200 | "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", |
dea3101e | 201 | mb->mbxCommand, mb->mbxStatus); |
74b72a59 | 202 | mb->un.varDmp.word_cnt = 0; |
dea3101e | 203 | } |
74b72a59 JW |
204 | if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) |
205 | mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; | |
dea3101e | 206 | lpfc_sli_pcimem_bcopy(pmb->context2, lpfc_vpd_data + offset, |
92d7f7b0 | 207 | mb->un.varDmp.word_cnt); |
dea3101e | 208 | offset += mb->un.varDmp.word_cnt; |
74b72a59 JW |
209 | } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); |
210 | lpfc_parse_vpd(phba, lpfc_vpd_data, offset); | |
dea3101e JB |
211 | |
212 | kfree(lpfc_vpd_data); | |
213 | out_free_context2: | |
214 | kfree(pmb->context2); | |
215 | out_free_mbox: | |
216 | mempool_free(pmb, phba->mbox_mem_pool); | |
217 | return 0; | |
218 | } | |
219 | ||
e59058c4 JS |
220 | /** |
221 | * lpfc_config_async_cmpl: Completion handler for config async event mbox cmd. | |
222 | * @phba: pointer to lpfc hba data structure. | |
223 | * @pmboxq: pointer to the driver internal queue element for mailbox command. | |
224 | * | |
225 | * This is the completion handler for driver's configuring asynchronous event | |
226 | * mailbox command to the device. If the mailbox command returns successfully, | |
227 | * it will set internal async event support flag to 1; otherwise, it will | |
228 | * set internal async event support flag to 0. | |
229 | **/ | |
57127f15 JS |
230 | static void |
231 | lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) | |
232 | { | |
233 | if (pmboxq->mb.mbxStatus == MBX_SUCCESS) | |
234 | phba->temp_sensor_support = 1; | |
235 | else | |
236 | phba->temp_sensor_support = 0; | |
237 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
238 | return; | |
239 | } | |
240 | ||
e59058c4 JS |
241 | /** |
242 | * lpfc_config_port_post: Perform lpfc initialization after config port. | |
243 | * @phba: pointer to lpfc hba data structure. | |
244 | * | |
245 | * This routine will do LPFC initialization after the CONFIG_PORT mailbox | |
246 | * command call. It performs all internal resource and state setups on the | |
247 | * port: post IOCB buffers, enable appropriate host interrupt attentions, | |
248 | * ELS ring timers, etc. | |
249 | * | |
250 | * Return codes | |
251 | * 0 - success. | |
252 | * Any other value - error. | |
253 | **/ | |
dea3101e | 254 | int |
2e0fef85 | 255 | lpfc_config_port_post(struct lpfc_hba *phba) |
dea3101e | 256 | { |
2e0fef85 | 257 | struct lpfc_vport *vport = phba->pport; |
dea3101e JB |
258 | LPFC_MBOXQ_t *pmb; |
259 | MAILBOX_t *mb; | |
260 | struct lpfc_dmabuf *mp; | |
261 | struct lpfc_sli *psli = &phba->sli; | |
262 | uint32_t status, timeout; | |
2e0fef85 JS |
263 | int i, j; |
264 | int rc; | |
dea3101e | 265 | |
7af67051 JS |
266 | spin_lock_irq(&phba->hbalock); |
267 | /* | |
268 | * If the Config port completed correctly the HBA is not | |
269 | * over heated any more. | |
270 | */ | |
271 | if (phba->over_temp_state == HBA_OVER_TEMP) | |
272 | phba->over_temp_state = HBA_NORMAL_TEMP; | |
273 | spin_unlock_irq(&phba->hbalock); | |
274 | ||
dea3101e JB |
275 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
276 | if (!pmb) { | |
2e0fef85 | 277 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
278 | return -ENOMEM; |
279 | } | |
280 | mb = &pmb->mb; | |
281 | ||
dea3101e | 282 | /* Get login parameters for NID. */ |
92d7f7b0 | 283 | lpfc_read_sparam(phba, pmb, 0); |
ed957684 | 284 | pmb->vport = vport; |
dea3101e | 285 | if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { |
ed957684 | 286 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 287 | "0448 Adapter failed init, mbxCmd x%x " |
dea3101e | 288 | "READ_SPARM mbxStatus x%x\n", |
dea3101e | 289 | mb->mbxCommand, mb->mbxStatus); |
2e0fef85 | 290 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
291 | mp = (struct lpfc_dmabuf *) pmb->context1; |
292 | mempool_free( pmb, phba->mbox_mem_pool); | |
293 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
294 | kfree(mp); | |
295 | return -EIO; | |
296 | } | |
297 | ||
298 | mp = (struct lpfc_dmabuf *) pmb->context1; | |
299 | ||
2e0fef85 | 300 | memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); |
dea3101e JB |
301 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
302 | kfree(mp); | |
303 | pmb->context1 = NULL; | |
304 | ||
a12e07bc | 305 | if (phba->cfg_soft_wwnn) |
2e0fef85 JS |
306 | u64_to_wwn(phba->cfg_soft_wwnn, |
307 | vport->fc_sparam.nodeName.u.wwn); | |
c3f28afa | 308 | if (phba->cfg_soft_wwpn) |
2e0fef85 JS |
309 | u64_to_wwn(phba->cfg_soft_wwpn, |
310 | vport->fc_sparam.portName.u.wwn); | |
311 | memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, | |
dea3101e | 312 | sizeof (struct lpfc_name)); |
2e0fef85 | 313 | memcpy(&vport->fc_portname, &vport->fc_sparam.portName, |
dea3101e JB |
314 | sizeof (struct lpfc_name)); |
315 | /* If no serial number in VPD data, use low 6 bytes of WWNN */ | |
316 | /* This should be consolidated into parse_vpd ? - mr */ | |
317 | if (phba->SerialNumber[0] == 0) { | |
318 | uint8_t *outptr; | |
319 | ||
2e0fef85 | 320 | outptr = &vport->fc_nodename.u.s.IEEE[0]; |
dea3101e JB |
321 | for (i = 0; i < 12; i++) { |
322 | status = *outptr++; | |
323 | j = ((status & 0xf0) >> 4); | |
324 | if (j <= 9) | |
325 | phba->SerialNumber[i] = | |
326 | (char)((uint8_t) 0x30 + (uint8_t) j); | |
327 | else | |
328 | phba->SerialNumber[i] = | |
329 | (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); | |
330 | i++; | |
331 | j = (status & 0xf); | |
332 | if (j <= 9) | |
333 | phba->SerialNumber[i] = | |
334 | (char)((uint8_t) 0x30 + (uint8_t) j); | |
335 | else | |
336 | phba->SerialNumber[i] = | |
337 | (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); | |
338 | } | |
339 | } | |
340 | ||
dea3101e | 341 | lpfc_read_config(phba, pmb); |
ed957684 | 342 | pmb->vport = vport; |
dea3101e | 343 | if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { |
ed957684 | 344 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 345 | "0453 Adapter failed to init, mbxCmd x%x " |
dea3101e | 346 | "READ_CONFIG, mbxStatus x%x\n", |
dea3101e | 347 | mb->mbxCommand, mb->mbxStatus); |
2e0fef85 | 348 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
349 | mempool_free( pmb, phba->mbox_mem_pool); |
350 | return -EIO; | |
351 | } | |
352 | ||
353 | /* Reset the DFT_HBA_Q_DEPTH to the max xri */ | |
354 | if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) | |
355 | phba->cfg_hba_queue_depth = | |
356 | mb->un.varRdConfig.max_xri + 1; | |
357 | ||
358 | phba->lmt = mb->un.varRdConfig.lmt; | |
74b72a59 JW |
359 | |
360 | /* Get the default values for Model Name and Description */ | |
361 | lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); | |
362 | ||
363 | if ((phba->cfg_link_speed > LINK_SPEED_10G) | |
364 | || ((phba->cfg_link_speed == LINK_SPEED_1G) | |
365 | && !(phba->lmt & LMT_1Gb)) | |
366 | || ((phba->cfg_link_speed == LINK_SPEED_2G) | |
367 | && !(phba->lmt & LMT_2Gb)) | |
368 | || ((phba->cfg_link_speed == LINK_SPEED_4G) | |
369 | && !(phba->lmt & LMT_4Gb)) | |
370 | || ((phba->cfg_link_speed == LINK_SPEED_8G) | |
371 | && !(phba->lmt & LMT_8Gb)) | |
372 | || ((phba->cfg_link_speed == LINK_SPEED_10G) | |
373 | && !(phba->lmt & LMT_10Gb))) { | |
374 | /* Reset link speed to auto */ | |
ed957684 | 375 | lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT, |
e8b62011 | 376 | "1302 Invalid speed for this board: " |
dea3101e | 377 | "Reset link speed to auto: x%x\n", |
dea3101e JB |
378 | phba->cfg_link_speed); |
379 | phba->cfg_link_speed = LINK_SPEED_AUTO; | |
380 | } | |
381 | ||
2e0fef85 | 382 | phba->link_state = LPFC_LINK_DOWN; |
dea3101e | 383 | |
0b727fea | 384 | /* Only process IOCBs on ELS ring till hba_state is READY */ |
a4bc3379 JS |
385 | if (psli->ring[psli->extra_ring].cmdringaddr) |
386 | psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; | |
dea3101e JB |
387 | if (psli->ring[psli->fcp_ring].cmdringaddr) |
388 | psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; | |
389 | if (psli->ring[psli->next_ring].cmdringaddr) | |
390 | psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; | |
391 | ||
392 | /* Post receive buffers for desired rings */ | |
ed957684 JS |
393 | if (phba->sli_rev != 3) |
394 | lpfc_post_rcv_buf(phba); | |
dea3101e JB |
395 | |
396 | /* Enable appropriate host interrupts */ | |
2e0fef85 | 397 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
398 | status = readl(phba->HCregaddr); |
399 | status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; | |
400 | if (psli->num_rings > 0) | |
401 | status |= HC_R0INT_ENA; | |
402 | if (psli->num_rings > 1) | |
403 | status |= HC_R1INT_ENA; | |
404 | if (psli->num_rings > 2) | |
405 | status |= HC_R2INT_ENA; | |
406 | if (psli->num_rings > 3) | |
407 | status |= HC_R3INT_ENA; | |
408 | ||
875fbdfe JSEC |
409 | if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && |
410 | (phba->cfg_poll & DISABLE_FCP_RING_INT)) | |
411 | status &= ~(HC_R0INT_ENA << LPFC_FCP_RING); | |
412 | ||
dea3101e JB |
413 | writel(status, phba->HCregaddr); |
414 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 | 415 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
416 | |
417 | /* | |
418 | * Setup the ring 0 (els) timeout handler | |
419 | */ | |
420 | timeout = phba->fc_ratov << 1; | |
2e0fef85 | 421 | mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); |
858c9f6c JS |
422 | mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); |
423 | phba->hb_outstanding = 0; | |
424 | phba->last_completion_time = jiffies; | |
dea3101e JB |
425 | |
426 | lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed); | |
427 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
ed957684 | 428 | pmb->vport = vport; |
8aee918a | 429 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
5b8bd0c9 | 430 | lpfc_set_loopback_flag(phba); |
8aee918a | 431 | if (rc != MBX_SUCCESS) { |
ed957684 | 432 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 433 | "0454 Adapter failed to init, mbxCmd x%x " |
dea3101e | 434 | "INIT_LINK, mbxStatus x%x\n", |
dea3101e JB |
435 | mb->mbxCommand, mb->mbxStatus); |
436 | ||
437 | /* Clear all interrupt enable conditions */ | |
438 | writel(0, phba->HCregaddr); | |
439 | readl(phba->HCregaddr); /* flush */ | |
440 | /* Clear all pending interrupts */ | |
441 | writel(0xffffffff, phba->HAregaddr); | |
442 | readl(phba->HAregaddr); /* flush */ | |
443 | ||
2e0fef85 | 444 | phba->link_state = LPFC_HBA_ERROR; |
8aee918a JS |
445 | if (rc != MBX_BUSY) |
446 | mempool_free(pmb, phba->mbox_mem_pool); | |
dea3101e JB |
447 | return -EIO; |
448 | } | |
449 | /* MBOX buffer will be freed in mbox compl */ | |
57127f15 JS |
450 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
451 | lpfc_config_async(phba, pmb, LPFC_ELS_RING); | |
452 | pmb->mbox_cmpl = lpfc_config_async_cmpl; | |
453 | pmb->vport = phba->pport; | |
454 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
dea3101e | 455 | |
57127f15 JS |
456 | if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { |
457 | lpfc_printf_log(phba, | |
458 | KERN_ERR, | |
459 | LOG_INIT, | |
460 | "0456 Adapter failed to issue " | |
461 | "ASYNCEVT_ENABLE mbox status x%x \n.", | |
462 | rc); | |
463 | mempool_free(pmb, phba->mbox_mem_pool); | |
464 | } | |
ce8b3ce5 JS |
465 | return (0); |
466 | } | |
467 | ||
e59058c4 JS |
468 | /** |
469 | * lpfc_hba_down_prep: Perform lpfc uninitialization prior to HBA reset. | |
470 | * @phba: pointer to lpfc HBA data structure. | |
471 | * | |
472 | * This routine will do LPFC uninitialization before the HBA is reset when | |
473 | * bringing down the SLI Layer. | |
474 | * | |
475 | * Return codes | |
476 | * 0 - success. | |
477 | * Any other value - error. | |
478 | **/ | |
dea3101e | 479 | int |
2e0fef85 | 480 | lpfc_hba_down_prep(struct lpfc_hba *phba) |
dea3101e | 481 | { |
1b32f6aa JS |
482 | struct lpfc_vport **vports; |
483 | int i; | |
dea3101e JB |
484 | /* Disable interrupts */ |
485 | writel(0, phba->HCregaddr); | |
486 | readl(phba->HCregaddr); /* flush */ | |
487 | ||
1b32f6aa JS |
488 | if (phba->pport->load_flag & FC_UNLOADING) |
489 | lpfc_cleanup_discovery_resources(phba->pport); | |
490 | else { | |
491 | vports = lpfc_create_vport_work_array(phba); | |
492 | if (vports != NULL) | |
493 | for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) | |
494 | lpfc_cleanup_discovery_resources(vports[i]); | |
495 | lpfc_destroy_vport_work_array(phba, vports); | |
7f5f3d0d JS |
496 | } |
497 | return 0; | |
dea3101e JB |
498 | } |
499 | ||
e59058c4 JS |
500 | /** |
501 | * lpfc_hba_down_post: Perform lpfc uninitialization after HBA reset. | |
502 | * @phba: pointer to lpfc HBA data structure. | |
503 | * | |
504 | * This routine will do uninitialization after the HBA is reset when bring | |
505 | * down the SLI Layer. | |
506 | * | |
507 | * Return codes | |
508 | * 0 - sucess. | |
509 | * Any other value - error. | |
510 | **/ | |
41415862 | 511 | int |
2e0fef85 | 512 | lpfc_hba_down_post(struct lpfc_hba *phba) |
41415862 JW |
513 | { |
514 | struct lpfc_sli *psli = &phba->sli; | |
515 | struct lpfc_sli_ring *pring; | |
516 | struct lpfc_dmabuf *mp, *next_mp; | |
09372820 JS |
517 | struct lpfc_iocbq *iocb; |
518 | IOCB_t *cmd = NULL; | |
519 | LIST_HEAD(completions); | |
41415862 JW |
520 | int i; |
521 | ||
92d7f7b0 JS |
522 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) |
523 | lpfc_sli_hbqbuf_free_all(phba); | |
524 | else { | |
525 | /* Cleanup preposted buffers on the ELS ring */ | |
526 | pring = &psli->ring[LPFC_ELS_RING]; | |
527 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { | |
528 | list_del(&mp->list); | |
529 | pring->postbufq_cnt--; | |
530 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
531 | kfree(mp); | |
532 | } | |
41415862 JW |
533 | } |
534 | ||
09372820 | 535 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
536 | for (i = 0; i < psli->num_rings; i++) { |
537 | pring = &psli->ring[i]; | |
09372820 JS |
538 | |
539 | /* At this point in time the HBA is either reset or DOA. Either | |
540 | * way, nothing should be on txcmplq as it will NEVER complete. | |
541 | */ | |
542 | list_splice_init(&pring->txcmplq, &completions); | |
543 | pring->txcmplq_cnt = 0; | |
544 | spin_unlock_irq(&phba->hbalock); | |
545 | ||
546 | while (!list_empty(&completions)) { | |
547 | iocb = list_get_first(&completions, struct lpfc_iocbq, | |
548 | list); | |
549 | cmd = &iocb->iocb; | |
550 | list_del_init(&iocb->list); | |
551 | ||
552 | if (!iocb->iocb_cmpl) | |
553 | lpfc_sli_release_iocbq(phba, iocb); | |
554 | else { | |
555 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
556 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
557 | (iocb->iocb_cmpl) (phba, iocb, iocb); | |
558 | } | |
559 | } | |
560 | ||
41415862 | 561 | lpfc_sli_abort_iocb_ring(phba, pring); |
09372820 | 562 | spin_lock_irq(&phba->hbalock); |
41415862 | 563 | } |
09372820 | 564 | spin_unlock_irq(&phba->hbalock); |
41415862 JW |
565 | |
566 | return 0; | |
567 | } | |
568 | ||
e59058c4 JS |
569 | /** |
570 | * lpfc_hb_timeout: The HBA-timer timeout handler. | |
571 | * @ptr: unsigned long holds the pointer to lpfc hba data structure. | |
572 | * | |
573 | * This is the HBA-timer timeout handler registered to the lpfc driver. When | |
574 | * this timer fires, a HBA timeout event shall be posted to the lpfc driver | |
575 | * work-port-events bitmap and the worker thread is notified. This timeout | |
576 | * event will be used by the worker thread to invoke the actual timeout | |
577 | * handler routine, lpfc_hb_timeout_handler. Any periodical operations will | |
578 | * be performed in the timeout handler and the HBA timeout event bit shall | |
579 | * be cleared by the worker thread after it has taken the event bitmap out. | |
580 | **/ | |
a6ababd2 | 581 | static void |
858c9f6c JS |
582 | lpfc_hb_timeout(unsigned long ptr) |
583 | { | |
584 | struct lpfc_hba *phba; | |
5e9d9b82 | 585 | uint32_t tmo_posted; |
858c9f6c JS |
586 | unsigned long iflag; |
587 | ||
588 | phba = (struct lpfc_hba *)ptr; | |
589 | spin_lock_irqsave(&phba->pport->work_port_lock, iflag); | |
5e9d9b82 JS |
590 | tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; |
591 | if (!tmo_posted) | |
858c9f6c JS |
592 | phba->pport->work_port_events |= WORKER_HB_TMO; |
593 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); | |
594 | ||
5e9d9b82 JS |
595 | if (!tmo_posted) |
596 | lpfc_worker_wake_up(phba); | |
858c9f6c JS |
597 | return; |
598 | } | |
599 | ||
e59058c4 JS |
600 | /** |
601 | * lpfc_hb_mbox_cmpl: The lpfc heart-beat mailbox command callback function. | |
602 | * @phba: pointer to lpfc hba data structure. | |
603 | * @pmboxq: pointer to the driver internal queue element for mailbox command. | |
604 | * | |
605 | * This is the callback function to the lpfc heart-beat mailbox command. | |
606 | * If configured, the lpfc driver issues the heart-beat mailbox command to | |
607 | * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the | |
608 | * heart-beat mailbox command is issued, the driver shall set up heart-beat | |
609 | * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks | |
610 | * heart-beat outstanding state. Once the mailbox command comes back and | |
611 | * no error conditions detected, the heart-beat mailbox command timer is | |
612 | * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding | |
613 | * state is cleared for the next heart-beat. If the timer expired with the | |
614 | * heart-beat outstanding state set, the driver will put the HBA offline. | |
615 | **/ | |
858c9f6c JS |
616 | static void |
617 | lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) | |
618 | { | |
619 | unsigned long drvr_flag; | |
620 | ||
621 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
622 | phba->hb_outstanding = 0; | |
623 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
624 | ||
625 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
626 | if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && | |
627 | !(phba->link_state == LPFC_HBA_ERROR) && | |
51ef4c26 | 628 | !(phba->pport->load_flag & FC_UNLOADING)) |
858c9f6c JS |
629 | mod_timer(&phba->hb_tmofunc, |
630 | jiffies + HZ * LPFC_HB_MBOX_INTERVAL); | |
631 | return; | |
632 | } | |
633 | ||
e59058c4 JS |
634 | /** |
635 | * lpfc_hb_timeout_handler: The HBA-timer timeout handler. | |
636 | * @phba: pointer to lpfc hba data structure. | |
637 | * | |
638 | * This is the actual HBA-timer timeout handler to be invoked by the worker | |
639 | * thread whenever the HBA timer fired and HBA-timeout event posted. This | |
640 | * handler performs any periodic operations needed for the device. If such | |
641 | * periodic event has already been attended to either in the interrupt handler | |
642 | * or by processing slow-ring or fast-ring events within the HBA-timer | |
643 | * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets | |
644 | * the timer for the next timeout period. If lpfc heart-beat mailbox command | |
645 | * is configured and there is no heart-beat mailbox command outstanding, a | |
646 | * heart-beat mailbox is issued and timer set properly. Otherwise, if there | |
647 | * has been a heart-beat mailbox command outstanding, the HBA shall be put | |
648 | * to offline. | |
649 | **/ | |
858c9f6c JS |
650 | void |
651 | lpfc_hb_timeout_handler(struct lpfc_hba *phba) | |
652 | { | |
653 | LPFC_MBOXQ_t *pmboxq; | |
0ff10d46 | 654 | struct lpfc_dmabuf *buf_ptr; |
858c9f6c JS |
655 | int retval; |
656 | struct lpfc_sli *psli = &phba->sli; | |
0ff10d46 | 657 | LIST_HEAD(completions); |
858c9f6c JS |
658 | |
659 | if ((phba->link_state == LPFC_HBA_ERROR) || | |
51ef4c26 | 660 | (phba->pport->load_flag & FC_UNLOADING) || |
858c9f6c JS |
661 | (phba->pport->fc_flag & FC_OFFLINE_MODE)) |
662 | return; | |
663 | ||
664 | spin_lock_irq(&phba->pport->work_port_lock); | |
665 | /* If the timer is already canceled do nothing */ | |
666 | if (!(phba->pport->work_port_events & WORKER_HB_TMO)) { | |
667 | spin_unlock_irq(&phba->pport->work_port_lock); | |
668 | return; | |
669 | } | |
670 | ||
671 | if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, | |
672 | jiffies)) { | |
673 | spin_unlock_irq(&phba->pport->work_port_lock); | |
674 | if (!phba->hb_outstanding) | |
675 | mod_timer(&phba->hb_tmofunc, | |
676 | jiffies + HZ * LPFC_HB_MBOX_INTERVAL); | |
677 | else | |
678 | mod_timer(&phba->hb_tmofunc, | |
679 | jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); | |
680 | return; | |
681 | } | |
682 | spin_unlock_irq(&phba->pport->work_port_lock); | |
683 | ||
0ff10d46 JS |
684 | if (phba->elsbuf_cnt && |
685 | (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { | |
686 | spin_lock_irq(&phba->hbalock); | |
687 | list_splice_init(&phba->elsbuf, &completions); | |
688 | phba->elsbuf_cnt = 0; | |
689 | phba->elsbuf_prev_cnt = 0; | |
690 | spin_unlock_irq(&phba->hbalock); | |
691 | ||
692 | while (!list_empty(&completions)) { | |
693 | list_remove_head(&completions, buf_ptr, | |
694 | struct lpfc_dmabuf, list); | |
695 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
696 | kfree(buf_ptr); | |
697 | } | |
698 | } | |
699 | phba->elsbuf_prev_cnt = phba->elsbuf_cnt; | |
700 | ||
858c9f6c | 701 | /* If there is no heart beat outstanding, issue a heartbeat command */ |
13815c83 JS |
702 | if (phba->cfg_enable_hba_heartbeat) { |
703 | if (!phba->hb_outstanding) { | |
704 | pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); | |
705 | if (!pmboxq) { | |
706 | mod_timer(&phba->hb_tmofunc, | |
707 | jiffies + HZ * LPFC_HB_MBOX_INTERVAL); | |
708 | return; | |
709 | } | |
858c9f6c | 710 | |
13815c83 JS |
711 | lpfc_heart_beat(phba, pmboxq); |
712 | pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; | |
713 | pmboxq->vport = phba->pport; | |
714 | retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
858c9f6c | 715 | |
13815c83 JS |
716 | if (retval != MBX_BUSY && retval != MBX_SUCCESS) { |
717 | mempool_free(pmboxq, phba->mbox_mem_pool); | |
718 | mod_timer(&phba->hb_tmofunc, | |
719 | jiffies + HZ * LPFC_HB_MBOX_INTERVAL); | |
720 | return; | |
721 | } | |
858c9f6c | 722 | mod_timer(&phba->hb_tmofunc, |
13815c83 JS |
723 | jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); |
724 | phba->hb_outstanding = 1; | |
858c9f6c | 725 | return; |
13815c83 JS |
726 | } else { |
727 | /* | |
728 | * If heart beat timeout called with hb_outstanding set | |
729 | * we need to take the HBA offline. | |
730 | */ | |
731 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
732 | "0459 Adapter heartbeat failure, " | |
733 | "taking this port offline.\n"); | |
734 | ||
735 | spin_lock_irq(&phba->hbalock); | |
736 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; | |
737 | spin_unlock_irq(&phba->hbalock); | |
738 | ||
739 | lpfc_offline_prep(phba); | |
740 | lpfc_offline(phba); | |
741 | lpfc_unblock_mgmt_io(phba); | |
742 | phba->link_state = LPFC_HBA_ERROR; | |
743 | lpfc_hba_down_post(phba); | |
858c9f6c | 744 | } |
858c9f6c JS |
745 | } |
746 | } | |
747 | ||
e59058c4 JS |
748 | /** |
749 | * lpfc_offline_eratt: Bring lpfc offline on hardware error attention. | |
750 | * @phba: pointer to lpfc hba data structure. | |
751 | * | |
752 | * This routine is called to bring the HBA offline when HBA hardware error | |
753 | * other than Port Error 6 has been detected. | |
754 | **/ | |
09372820 JS |
755 | static void |
756 | lpfc_offline_eratt(struct lpfc_hba *phba) | |
757 | { | |
758 | struct lpfc_sli *psli = &phba->sli; | |
759 | ||
760 | spin_lock_irq(&phba->hbalock); | |
761 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; | |
762 | spin_unlock_irq(&phba->hbalock); | |
763 | lpfc_offline_prep(phba); | |
764 | ||
765 | lpfc_offline(phba); | |
766 | lpfc_reset_barrier(phba); | |
767 | lpfc_sli_brdreset(phba); | |
768 | lpfc_hba_down_post(phba); | |
769 | lpfc_sli_brdready(phba, HS_MBRDY); | |
770 | lpfc_unblock_mgmt_io(phba); | |
771 | phba->link_state = LPFC_HBA_ERROR; | |
772 | return; | |
773 | } | |
774 | ||
e59058c4 JS |
775 | /** |
776 | * lpfc_handle_eratt: The HBA hardware error handler. | |
777 | * @phba: pointer to lpfc hba data structure. | |
778 | * | |
779 | * This routine is invoked to handle the following HBA hardware error | |
780 | * conditions: | |
781 | * 1 - HBA error attention interrupt | |
782 | * 2 - DMA ring index out of range | |
783 | * 3 - Mailbox command came back as unknown | |
784 | **/ | |
dea3101e | 785 | void |
2e0fef85 | 786 | lpfc_handle_eratt(struct lpfc_hba *phba) |
dea3101e | 787 | { |
2e0fef85 | 788 | struct lpfc_vport *vport = phba->pport; |
2e0fef85 | 789 | struct lpfc_sli *psli = &phba->sli; |
dea3101e | 790 | struct lpfc_sli_ring *pring; |
d2873e4c | 791 | uint32_t event_data; |
57127f15 JS |
792 | unsigned long temperature; |
793 | struct temp_event temp_event_data; | |
92d7f7b0 | 794 | struct Scsi_Host *shost; |
2e0fef85 | 795 | |
8d63f375 LV |
796 | /* If the pci channel is offline, ignore possible errors, |
797 | * since we cannot communicate with the pci card anyway. */ | |
798 | if (pci_channel_offline(phba->pcidev)) | |
799 | return; | |
13815c83 JS |
800 | /* If resets are disabled then leave the HBA alone and return */ |
801 | if (!phba->cfg_enable_hba_reset) | |
802 | return; | |
dea3101e | 803 | |
97eab634 | 804 | if (phba->work_hs & HS_FFER6) { |
dea3101e JB |
805 | /* Re-establishing Link */ |
806 | lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, | |
e8b62011 | 807 | "1301 Re-establishing Link " |
dea3101e | 808 | "Data: x%x x%x x%x\n", |
e8b62011 | 809 | phba->work_hs, |
dea3101e | 810 | phba->work_status[0], phba->work_status[1]); |
58da1ffb | 811 | |
92d7f7b0 | 812 | spin_lock_irq(&phba->hbalock); |
9290831f | 813 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; |
92d7f7b0 | 814 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
815 | |
816 | /* | |
817 | * Firmware stops when it triggled erratt with HS_FFER6. | |
818 | * That could cause the I/Os dropped by the firmware. | |
819 | * Error iocb (I/O) on txcmplq and let the SCSI layer | |
820 | * retry it after re-establishing link. | |
821 | */ | |
822 | pring = &psli->ring[psli->fcp_ring]; | |
823 | lpfc_sli_abort_iocb_ring(phba, pring); | |
824 | ||
dea3101e JB |
825 | /* |
826 | * There was a firmware error. Take the hba offline and then | |
827 | * attempt to restart it. | |
828 | */ | |
46fa311e | 829 | lpfc_offline_prep(phba); |
dea3101e | 830 | lpfc_offline(phba); |
41415862 | 831 | lpfc_sli_brdrestart(phba); |
dea3101e | 832 | if (lpfc_online(phba) == 0) { /* Initialize the HBA */ |
46fa311e | 833 | lpfc_unblock_mgmt_io(phba); |
dea3101e JB |
834 | return; |
835 | } | |
46fa311e | 836 | lpfc_unblock_mgmt_io(phba); |
57127f15 JS |
837 | } else if (phba->work_hs & HS_CRIT_TEMP) { |
838 | temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); | |
839 | temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; | |
840 | temp_event_data.event_code = LPFC_CRIT_TEMP; | |
841 | temp_event_data.data = (uint32_t)temperature; | |
842 | ||
843 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
844 | "0459 Adapter maximum temperature exceeded " | |
845 | "(%ld), taking this port offline " | |
846 | "Data: x%x x%x x%x\n", | |
847 | temperature, phba->work_hs, | |
848 | phba->work_status[0], phba->work_status[1]); | |
849 | ||
850 | shost = lpfc_shost_from_vport(phba->pport); | |
851 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
852 | sizeof(temp_event_data), | |
853 | (char *) &temp_event_data, | |
854 | SCSI_NL_VID_TYPE_PCI | |
855 | | PCI_VENDOR_ID_EMULEX); | |
856 | ||
7af67051 | 857 | spin_lock_irq(&phba->hbalock); |
7af67051 JS |
858 | phba->over_temp_state = HBA_OVER_TEMP; |
859 | spin_unlock_irq(&phba->hbalock); | |
09372820 | 860 | lpfc_offline_eratt(phba); |
57127f15 | 861 | |
dea3101e JB |
862 | } else { |
863 | /* The if clause above forces this code path when the status | |
864 | * failure is a value other than FFER6. Do not call the offline | |
865 | * twice. This is the adapter hardware error path. | |
866 | */ | |
867 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
e8b62011 | 868 | "0457 Adapter Hardware Error " |
dea3101e | 869 | "Data: x%x x%x x%x\n", |
e8b62011 | 870 | phba->work_hs, |
dea3101e JB |
871 | phba->work_status[0], phba->work_status[1]); |
872 | ||
d2873e4c | 873 | event_data = FC_REG_DUMP_EVENT; |
92d7f7b0 | 874 | shost = lpfc_shost_from_vport(vport); |
2e0fef85 | 875 | fc_host_post_vendor_event(shost, fc_get_event_number(), |
d2873e4c JS |
876 | sizeof(event_data), (char *) &event_data, |
877 | SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); | |
878 | ||
09372820 | 879 | lpfc_offline_eratt(phba); |
dea3101e JB |
880 | } |
881 | } | |
882 | ||
e59058c4 JS |
883 | /** |
884 | * lpfc_handle_latt: The HBA link event handler. | |
885 | * @phba: pointer to lpfc hba data structure. | |
886 | * | |
887 | * This routine is invoked from the worker thread to handle a HBA host | |
888 | * attention link event. | |
889 | **/ | |
dea3101e | 890 | void |
2e0fef85 | 891 | lpfc_handle_latt(struct lpfc_hba *phba) |
dea3101e | 892 | { |
2e0fef85 JS |
893 | struct lpfc_vport *vport = phba->pport; |
894 | struct lpfc_sli *psli = &phba->sli; | |
dea3101e JB |
895 | LPFC_MBOXQ_t *pmb; |
896 | volatile uint32_t control; | |
897 | struct lpfc_dmabuf *mp; | |
09372820 | 898 | int rc = 0; |
dea3101e JB |
899 | |
900 | pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
09372820 JS |
901 | if (!pmb) { |
902 | rc = 1; | |
dea3101e | 903 | goto lpfc_handle_latt_err_exit; |
09372820 | 904 | } |
dea3101e JB |
905 | |
906 | mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
09372820 JS |
907 | if (!mp) { |
908 | rc = 2; | |
dea3101e | 909 | goto lpfc_handle_latt_free_pmb; |
09372820 | 910 | } |
dea3101e JB |
911 | |
912 | mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); | |
09372820 JS |
913 | if (!mp->virt) { |
914 | rc = 3; | |
dea3101e | 915 | goto lpfc_handle_latt_free_mp; |
09372820 | 916 | } |
dea3101e | 917 | |
6281bfe0 | 918 | /* Cleanup any outstanding ELS commands */ |
549e55cd | 919 | lpfc_els_flush_all_cmd(phba); |
dea3101e JB |
920 | |
921 | psli->slistat.link_event++; | |
922 | lpfc_read_la(phba, pmb, mp); | |
923 | pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; | |
2e0fef85 | 924 | pmb->vport = vport; |
0d2b6b83 JS |
925 | /* Block ELS IOCBs until we have processed this mbox command */ |
926 | phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; | |
0b727fea | 927 | rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); |
09372820 JS |
928 | if (rc == MBX_NOT_FINISHED) { |
929 | rc = 4; | |
14691150 | 930 | goto lpfc_handle_latt_free_mbuf; |
09372820 | 931 | } |
dea3101e JB |
932 | |
933 | /* Clear Link Attention in HA REG */ | |
2e0fef85 | 934 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
935 | writel(HA_LATT, phba->HAregaddr); |
936 | readl(phba->HAregaddr); /* flush */ | |
2e0fef85 | 937 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
938 | |
939 | return; | |
940 | ||
14691150 | 941 | lpfc_handle_latt_free_mbuf: |
0d2b6b83 | 942 | phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; |
14691150 | 943 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
dea3101e JB |
944 | lpfc_handle_latt_free_mp: |
945 | kfree(mp); | |
946 | lpfc_handle_latt_free_pmb: | |
1dcb58e5 | 947 | mempool_free(pmb, phba->mbox_mem_pool); |
dea3101e JB |
948 | lpfc_handle_latt_err_exit: |
949 | /* Enable Link attention interrupts */ | |
2e0fef85 | 950 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
951 | psli->sli_flag |= LPFC_PROCESS_LA; |
952 | control = readl(phba->HCregaddr); | |
953 | control |= HC_LAINT_ENA; | |
954 | writel(control, phba->HCregaddr); | |
955 | readl(phba->HCregaddr); /* flush */ | |
956 | ||
957 | /* Clear Link Attention in HA REG */ | |
958 | writel(HA_LATT, phba->HAregaddr); | |
959 | readl(phba->HAregaddr); /* flush */ | |
2e0fef85 | 960 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 961 | lpfc_linkdown(phba); |
2e0fef85 | 962 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 963 | |
09372820 JS |
964 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, |
965 | "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); | |
dea3101e JB |
966 | |
967 | return; | |
968 | } | |
969 | ||
e59058c4 JS |
970 | /** |
971 | * lpfc_parse_vpd: Parse VPD (Vital Product Data). | |
972 | * @phba: pointer to lpfc hba data structure. | |
973 | * @vpd: pointer to the vital product data. | |
974 | * @len: length of the vital product data in bytes. | |
975 | * | |
976 | * This routine parses the Vital Product Data (VPD). The VPD is treated as | |
977 | * an array of characters. In this routine, the ModelName, ProgramType, and | |
978 | * ModelDesc, etc. fields of the phba data structure will be populated. | |
979 | * | |
980 | * Return codes | |
981 | * 0 - pointer to the VPD passed in is NULL | |
982 | * 1 - success | |
983 | **/ | |
dea3101e | 984 | static int |
2e0fef85 | 985 | lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) |
dea3101e JB |
986 | { |
987 | uint8_t lenlo, lenhi; | |
07da60c1 | 988 | int Length; |
dea3101e JB |
989 | int i, j; |
990 | int finished = 0; | |
991 | int index = 0; | |
992 | ||
993 | if (!vpd) | |
994 | return 0; | |
995 | ||
996 | /* Vital Product */ | |
ed957684 | 997 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
e8b62011 | 998 | "0455 Vital Product Data: x%x x%x x%x x%x\n", |
dea3101e JB |
999 | (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], |
1000 | (uint32_t) vpd[3]); | |
74b72a59 | 1001 | while (!finished && (index < (len - 4))) { |
dea3101e JB |
1002 | switch (vpd[index]) { |
1003 | case 0x82: | |
74b72a59 | 1004 | case 0x91: |
dea3101e JB |
1005 | index += 1; |
1006 | lenlo = vpd[index]; | |
1007 | index += 1; | |
1008 | lenhi = vpd[index]; | |
1009 | index += 1; | |
1010 | i = ((((unsigned short)lenhi) << 8) + lenlo); | |
1011 | index += i; | |
1012 | break; | |
1013 | case 0x90: | |
1014 | index += 1; | |
1015 | lenlo = vpd[index]; | |
1016 | index += 1; | |
1017 | lenhi = vpd[index]; | |
1018 | index += 1; | |
1019 | Length = ((((unsigned short)lenhi) << 8) + lenlo); | |
74b72a59 JW |
1020 | if (Length > len - index) |
1021 | Length = len - index; | |
dea3101e JB |
1022 | while (Length > 0) { |
1023 | /* Look for Serial Number */ | |
1024 | if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { | |
1025 | index += 2; | |
1026 | i = vpd[index]; | |
1027 | index += 1; | |
1028 | j = 0; | |
1029 | Length -= (3+i); | |
1030 | while(i--) { | |
1031 | phba->SerialNumber[j++] = vpd[index++]; | |
1032 | if (j == 31) | |
1033 | break; | |
1034 | } | |
1035 | phba->SerialNumber[j] = 0; | |
1036 | continue; | |
1037 | } | |
1038 | else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { | |
1039 | phba->vpd_flag |= VPD_MODEL_DESC; | |
1040 | index += 2; | |
1041 | i = vpd[index]; | |
1042 | index += 1; | |
1043 | j = 0; | |
1044 | Length -= (3+i); | |
1045 | while(i--) { | |
1046 | phba->ModelDesc[j++] = vpd[index++]; | |
1047 | if (j == 255) | |
1048 | break; | |
1049 | } | |
1050 | phba->ModelDesc[j] = 0; | |
1051 | continue; | |
1052 | } | |
1053 | else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { | |
1054 | phba->vpd_flag |= VPD_MODEL_NAME; | |
1055 | index += 2; | |
1056 | i = vpd[index]; | |
1057 | index += 1; | |
1058 | j = 0; | |
1059 | Length -= (3+i); | |
1060 | while(i--) { | |
1061 | phba->ModelName[j++] = vpd[index++]; | |
1062 | if (j == 79) | |
1063 | break; | |
1064 | } | |
1065 | phba->ModelName[j] = 0; | |
1066 | continue; | |
1067 | } | |
1068 | else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { | |
1069 | phba->vpd_flag |= VPD_PROGRAM_TYPE; | |
1070 | index += 2; | |
1071 | i = vpd[index]; | |
1072 | index += 1; | |
1073 | j = 0; | |
1074 | Length -= (3+i); | |
1075 | while(i--) { | |
1076 | phba->ProgramType[j++] = vpd[index++]; | |
1077 | if (j == 255) | |
1078 | break; | |
1079 | } | |
1080 | phba->ProgramType[j] = 0; | |
1081 | continue; | |
1082 | } | |
1083 | else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { | |
1084 | phba->vpd_flag |= VPD_PORT; | |
1085 | index += 2; | |
1086 | i = vpd[index]; | |
1087 | index += 1; | |
1088 | j = 0; | |
1089 | Length -= (3+i); | |
1090 | while(i--) { | |
1091 | phba->Port[j++] = vpd[index++]; | |
1092 | if (j == 19) | |
1093 | break; | |
1094 | } | |
1095 | phba->Port[j] = 0; | |
1096 | continue; | |
1097 | } | |
1098 | else { | |
1099 | index += 2; | |
1100 | i = vpd[index]; | |
1101 | index += 1; | |
1102 | index += i; | |
1103 | Length -= (3 + i); | |
1104 | } | |
1105 | } | |
1106 | finished = 0; | |
1107 | break; | |
1108 | case 0x78: | |
1109 | finished = 1; | |
1110 | break; | |
1111 | default: | |
1112 | index ++; | |
1113 | break; | |
1114 | } | |
74b72a59 | 1115 | } |
dea3101e JB |
1116 | |
1117 | return(1); | |
1118 | } | |
1119 | ||
e59058c4 JS |
1120 | /** |
1121 | * lpfc_get_hba_model_desc: Retrieve HBA device model name and description. | |
1122 | * @phba: pointer to lpfc hba data structure. | |
1123 | * @mdp: pointer to the data structure to hold the derived model name. | |
1124 | * @descp: pointer to the data structure to hold the derived description. | |
1125 | * | |
1126 | * This routine retrieves HBA's description based on its registered PCI device | |
1127 | * ID. The @descp passed into this function points to an array of 256 chars. It | |
1128 | * shall be returned with the model name, maximum speed, and the host bus type. | |
1129 | * The @mdp passed into this function points to an array of 80 chars. When the | |
1130 | * function returns, the @mdp will be filled with the model name. | |
1131 | **/ | |
dea3101e | 1132 | static void |
2e0fef85 | 1133 | lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) |
dea3101e JB |
1134 | { |
1135 | lpfc_vpd_t *vp; | |
fefcb2b6 | 1136 | uint16_t dev_id = phba->pcidev->device; |
74b72a59 | 1137 | int max_speed; |
74b72a59 JW |
1138 | struct { |
1139 | char * name; | |
1140 | int max_speed; | |
74b72a59 | 1141 | char * bus; |
18a3b596 | 1142 | } m = {"<Unknown>", 0, ""}; |
74b72a59 JW |
1143 | |
1144 | if (mdp && mdp[0] != '\0' | |
1145 | && descp && descp[0] != '\0') | |
1146 | return; | |
1147 | ||
1148 | if (phba->lmt & LMT_10Gb) | |
1149 | max_speed = 10; | |
1150 | else if (phba->lmt & LMT_8Gb) | |
1151 | max_speed = 8; | |
1152 | else if (phba->lmt & LMT_4Gb) | |
1153 | max_speed = 4; | |
1154 | else if (phba->lmt & LMT_2Gb) | |
1155 | max_speed = 2; | |
1156 | else | |
1157 | max_speed = 1; | |
dea3101e JB |
1158 | |
1159 | vp = &phba->vpd; | |
dea3101e | 1160 | |
e4adb204 | 1161 | switch (dev_id) { |
06325e74 | 1162 | case PCI_DEVICE_ID_FIREFLY: |
18a3b596 | 1163 | m = (typeof(m)){"LP6000", max_speed, "PCI"}; |
06325e74 | 1164 | break; |
dea3101e JB |
1165 | case PCI_DEVICE_ID_SUPERFLY: |
1166 | if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) | |
18a3b596 | 1167 | m = (typeof(m)){"LP7000", max_speed, "PCI"}; |
dea3101e | 1168 | else |
18a3b596 | 1169 | m = (typeof(m)){"LP7000E", max_speed, "PCI"}; |
dea3101e JB |
1170 | break; |
1171 | case PCI_DEVICE_ID_DRAGONFLY: | |
18a3b596 | 1172 | m = (typeof(m)){"LP8000", max_speed, "PCI"}; |
dea3101e JB |
1173 | break; |
1174 | case PCI_DEVICE_ID_CENTAUR: | |
1175 | if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) | |
18a3b596 | 1176 | m = (typeof(m)){"LP9002", max_speed, "PCI"}; |
dea3101e | 1177 | else |
18a3b596 | 1178 | m = (typeof(m)){"LP9000", max_speed, "PCI"}; |
dea3101e JB |
1179 | break; |
1180 | case PCI_DEVICE_ID_RFLY: | |
18a3b596 | 1181 | m = (typeof(m)){"LP952", max_speed, "PCI"}; |
dea3101e JB |
1182 | break; |
1183 | case PCI_DEVICE_ID_PEGASUS: | |
18a3b596 | 1184 | m = (typeof(m)){"LP9802", max_speed, "PCI-X"}; |
dea3101e JB |
1185 | break; |
1186 | case PCI_DEVICE_ID_THOR: | |
18a3b596 | 1187 | m = (typeof(m)){"LP10000", max_speed, "PCI-X"}; |
dea3101e JB |
1188 | break; |
1189 | case PCI_DEVICE_ID_VIPER: | |
18a3b596 | 1190 | m = (typeof(m)){"LPX1000", max_speed, "PCI-X"}; |
dea3101e JB |
1191 | break; |
1192 | case PCI_DEVICE_ID_PFLY: | |
18a3b596 | 1193 | m = (typeof(m)){"LP982", max_speed, "PCI-X"}; |
dea3101e JB |
1194 | break; |
1195 | case PCI_DEVICE_ID_TFLY: | |
18a3b596 | 1196 | m = (typeof(m)){"LP1050", max_speed, "PCI-X"}; |
dea3101e JB |
1197 | break; |
1198 | case PCI_DEVICE_ID_HELIOS: | |
18a3b596 | 1199 | m = (typeof(m)){"LP11000", max_speed, "PCI-X2"}; |
dea3101e | 1200 | break; |
e4adb204 | 1201 | case PCI_DEVICE_ID_HELIOS_SCSP: |
18a3b596 | 1202 | m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"}; |
e4adb204 JSEC |
1203 | break; |
1204 | case PCI_DEVICE_ID_HELIOS_DCSP: | |
18a3b596 | 1205 | m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"}; |
e4adb204 JSEC |
1206 | break; |
1207 | case PCI_DEVICE_ID_NEPTUNE: | |
18a3b596 | 1208 | m = (typeof(m)){"LPe1000", max_speed, "PCIe"}; |
e4adb204 JSEC |
1209 | break; |
1210 | case PCI_DEVICE_ID_NEPTUNE_SCSP: | |
18a3b596 | 1211 | m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"}; |
e4adb204 JSEC |
1212 | break; |
1213 | case PCI_DEVICE_ID_NEPTUNE_DCSP: | |
18a3b596 | 1214 | m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"}; |
e4adb204 | 1215 | break; |
dea3101e | 1216 | case PCI_DEVICE_ID_BMID: |
18a3b596 | 1217 | m = (typeof(m)){"LP1150", max_speed, "PCI-X2"}; |
dea3101e JB |
1218 | break; |
1219 | case PCI_DEVICE_ID_BSMB: | |
18a3b596 | 1220 | m = (typeof(m)){"LP111", max_speed, "PCI-X2"}; |
dea3101e JB |
1221 | break; |
1222 | case PCI_DEVICE_ID_ZEPHYR: | |
18a3b596 | 1223 | m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; |
dea3101e | 1224 | break; |
e4adb204 | 1225 | case PCI_DEVICE_ID_ZEPHYR_SCSP: |
18a3b596 | 1226 | m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; |
e4adb204 JSEC |
1227 | break; |
1228 | case PCI_DEVICE_ID_ZEPHYR_DCSP: | |
18a3b596 | 1229 | m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"}; |
e4adb204 | 1230 | break; |
dea3101e | 1231 | case PCI_DEVICE_ID_ZMID: |
18a3b596 | 1232 | m = (typeof(m)){"LPe1150", max_speed, "PCIe"}; |
dea3101e JB |
1233 | break; |
1234 | case PCI_DEVICE_ID_ZSMB: | |
18a3b596 | 1235 | m = (typeof(m)){"LPe111", max_speed, "PCIe"}; |
dea3101e JB |
1236 | break; |
1237 | case PCI_DEVICE_ID_LP101: | |
18a3b596 | 1238 | m = (typeof(m)){"LP101", max_speed, "PCI-X"}; |
dea3101e JB |
1239 | break; |
1240 | case PCI_DEVICE_ID_LP10000S: | |
18a3b596 | 1241 | m = (typeof(m)){"LP10000-S", max_speed, "PCI"}; |
06325e74 | 1242 | break; |
e4adb204 | 1243 | case PCI_DEVICE_ID_LP11000S: |
18a3b596 JS |
1244 | m = (typeof(m)){"LP11000-S", max_speed, |
1245 | "PCI-X2"}; | |
1246 | break; | |
e4adb204 | 1247 | case PCI_DEVICE_ID_LPE11000S: |
18a3b596 JS |
1248 | m = (typeof(m)){"LPe11000-S", max_speed, |
1249 | "PCIe"}; | |
5cc36b3c | 1250 | break; |
b87eab38 JS |
1251 | case PCI_DEVICE_ID_SAT: |
1252 | m = (typeof(m)){"LPe12000", max_speed, "PCIe"}; | |
1253 | break; | |
1254 | case PCI_DEVICE_ID_SAT_MID: | |
1255 | m = (typeof(m)){"LPe1250", max_speed, "PCIe"}; | |
1256 | break; | |
1257 | case PCI_DEVICE_ID_SAT_SMB: | |
1258 | m = (typeof(m)){"LPe121", max_speed, "PCIe"}; | |
1259 | break; | |
1260 | case PCI_DEVICE_ID_SAT_DCSP: | |
1261 | m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"}; | |
1262 | break; | |
1263 | case PCI_DEVICE_ID_SAT_SCSP: | |
1264 | m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"}; | |
1265 | break; | |
1266 | case PCI_DEVICE_ID_SAT_S: | |
1267 | m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"}; | |
1268 | break; | |
5cc36b3c | 1269 | default: |
041976fb | 1270 | m = (typeof(m)){ NULL }; |
e4adb204 | 1271 | break; |
dea3101e | 1272 | } |
74b72a59 JW |
1273 | |
1274 | if (mdp && mdp[0] == '\0') | |
1275 | snprintf(mdp, 79,"%s", m.name); | |
1276 | if (descp && descp[0] == '\0') | |
1277 | snprintf(descp, 255, | |
18a3b596 JS |
1278 | "Emulex %s %dGb %s Fibre Channel Adapter", |
1279 | m.name, m.max_speed, m.bus); | |
dea3101e JB |
1280 | } |
1281 | ||
e59058c4 JS |
1282 | /** |
1283 | * lpfc_post_buffer: Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring. | |
1284 | * @phba: pointer to lpfc hba data structure. | |
1285 | * @pring: pointer to a IOCB ring. | |
1286 | * @cnt: the number of IOCBs to be posted to the IOCB ring. | |
1287 | * | |
1288 | * This routine posts a given number of IOCBs with the associated DMA buffer | |
1289 | * descriptors specified by the cnt argument to the given IOCB ring. | |
1290 | * | |
1291 | * Return codes | |
1292 | * The number of IOCBs NOT able to be posted to the IOCB ring. | |
1293 | **/ | |
dea3101e | 1294 | int |
495a714c | 1295 | lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) |
dea3101e JB |
1296 | { |
1297 | IOCB_t *icmd; | |
0bd4ca25 | 1298 | struct lpfc_iocbq *iocb; |
dea3101e JB |
1299 | struct lpfc_dmabuf *mp1, *mp2; |
1300 | ||
1301 | cnt += pring->missbufcnt; | |
1302 | ||
1303 | /* While there are buffers to post */ | |
1304 | while (cnt > 0) { | |
1305 | /* Allocate buffer for command iocb */ | |
0bd4ca25 | 1306 | iocb = lpfc_sli_get_iocbq(phba); |
dea3101e JB |
1307 | if (iocb == NULL) { |
1308 | pring->missbufcnt = cnt; | |
1309 | return cnt; | |
1310 | } | |
dea3101e JB |
1311 | icmd = &iocb->iocb; |
1312 | ||
1313 | /* 2 buffers can be posted per command */ | |
1314 | /* Allocate buffer to post */ | |
1315 | mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); | |
1316 | if (mp1) | |
98c9ea5c JS |
1317 | mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); |
1318 | if (!mp1 || !mp1->virt) { | |
c9475cb0 | 1319 | kfree(mp1); |
604a3e30 | 1320 | lpfc_sli_release_iocbq(phba, iocb); |
dea3101e JB |
1321 | pring->missbufcnt = cnt; |
1322 | return cnt; | |
1323 | } | |
1324 | ||
1325 | INIT_LIST_HEAD(&mp1->list); | |
1326 | /* Allocate buffer to post */ | |
1327 | if (cnt > 1) { | |
1328 | mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); | |
1329 | if (mp2) | |
1330 | mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, | |
1331 | &mp2->phys); | |
98c9ea5c | 1332 | if (!mp2 || !mp2->virt) { |
c9475cb0 | 1333 | kfree(mp2); |
dea3101e JB |
1334 | lpfc_mbuf_free(phba, mp1->virt, mp1->phys); |
1335 | kfree(mp1); | |
604a3e30 | 1336 | lpfc_sli_release_iocbq(phba, iocb); |
dea3101e JB |
1337 | pring->missbufcnt = cnt; |
1338 | return cnt; | |
1339 | } | |
1340 | ||
1341 | INIT_LIST_HEAD(&mp2->list); | |
1342 | } else { | |
1343 | mp2 = NULL; | |
1344 | } | |
1345 | ||
1346 | icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); | |
1347 | icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); | |
1348 | icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; | |
1349 | icmd->ulpBdeCount = 1; | |
1350 | cnt--; | |
1351 | if (mp2) { | |
1352 | icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); | |
1353 | icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); | |
1354 | icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; | |
1355 | cnt--; | |
1356 | icmd->ulpBdeCount = 2; | |
1357 | } | |
1358 | ||
1359 | icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; | |
1360 | icmd->ulpLe = 1; | |
1361 | ||
dea3101e JB |
1362 | if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) { |
1363 | lpfc_mbuf_free(phba, mp1->virt, mp1->phys); | |
1364 | kfree(mp1); | |
1365 | cnt++; | |
1366 | if (mp2) { | |
1367 | lpfc_mbuf_free(phba, mp2->virt, mp2->phys); | |
1368 | kfree(mp2); | |
1369 | cnt++; | |
1370 | } | |
604a3e30 | 1371 | lpfc_sli_release_iocbq(phba, iocb); |
dea3101e | 1372 | pring->missbufcnt = cnt; |
dea3101e JB |
1373 | return cnt; |
1374 | } | |
dea3101e | 1375 | lpfc_sli_ringpostbuf_put(phba, pring, mp1); |
92d7f7b0 | 1376 | if (mp2) |
dea3101e | 1377 | lpfc_sli_ringpostbuf_put(phba, pring, mp2); |
dea3101e JB |
1378 | } |
1379 | pring->missbufcnt = 0; | |
1380 | return 0; | |
1381 | } | |
1382 | ||
e59058c4 JS |
1383 | /** |
1384 | * lpfc_post_rcv_buf: Post the initial receive IOCB buffers to ELS ring. | |
1385 | * @phba: pointer to lpfc hba data structure. | |
1386 | * | |
1387 | * This routine posts initial receive IOCB buffers to the ELS ring. The | |
1388 | * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is | |
1389 | * set to 64 IOCBs. | |
1390 | * | |
1391 | * Return codes | |
1392 | * 0 - success (currently always success) | |
1393 | **/ | |
dea3101e | 1394 | static int |
2e0fef85 | 1395 | lpfc_post_rcv_buf(struct lpfc_hba *phba) |
dea3101e JB |
1396 | { |
1397 | struct lpfc_sli *psli = &phba->sli; | |
1398 | ||
1399 | /* Ring 0, ELS / CT buffers */ | |
495a714c | 1400 | lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); |
dea3101e JB |
1401 | /* Ring 2 - FCP no buffers needed */ |
1402 | ||
1403 | return 0; | |
1404 | } | |
1405 | ||
1406 | #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) | |
1407 | ||
e59058c4 JS |
1408 | /** |
1409 | * lpfc_sha_init: Set up initial array of hash table entries. | |
1410 | * @HashResultPointer: pointer to an array as hash table. | |
1411 | * | |
1412 | * This routine sets up the initial values to the array of hash table entries | |
1413 | * for the LC HBAs. | |
1414 | **/ | |
dea3101e JB |
1415 | static void |
1416 | lpfc_sha_init(uint32_t * HashResultPointer) | |
1417 | { | |
1418 | HashResultPointer[0] = 0x67452301; | |
1419 | HashResultPointer[1] = 0xEFCDAB89; | |
1420 | HashResultPointer[2] = 0x98BADCFE; | |
1421 | HashResultPointer[3] = 0x10325476; | |
1422 | HashResultPointer[4] = 0xC3D2E1F0; | |
1423 | } | |
1424 | ||
e59058c4 JS |
1425 | /** |
1426 | * lpfc_sha_iterate: Iterate initial hash table with the working hash table. | |
1427 | * @HashResultPointer: pointer to an initial/result hash table. | |
1428 | * @HashWorkingPointer: pointer to an working hash table. | |
1429 | * | |
1430 | * This routine iterates an initial hash table pointed by @HashResultPointer | |
1431 | * with the values from the working hash table pointeed by @HashWorkingPointer. | |
1432 | * The results are putting back to the initial hash table, returned through | |
1433 | * the @HashResultPointer as the result hash table. | |
1434 | **/ | |
dea3101e JB |
1435 | static void |
1436 | lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) | |
1437 | { | |
1438 | int t; | |
1439 | uint32_t TEMP; | |
1440 | uint32_t A, B, C, D, E; | |
1441 | t = 16; | |
1442 | do { | |
1443 | HashWorkingPointer[t] = | |
1444 | S(1, | |
1445 | HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - | |
1446 | 8] ^ | |
1447 | HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); | |
1448 | } while (++t <= 79); | |
1449 | t = 0; | |
1450 | A = HashResultPointer[0]; | |
1451 | B = HashResultPointer[1]; | |
1452 | C = HashResultPointer[2]; | |
1453 | D = HashResultPointer[3]; | |
1454 | E = HashResultPointer[4]; | |
1455 | ||
1456 | do { | |
1457 | if (t < 20) { | |
1458 | TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; | |
1459 | } else if (t < 40) { | |
1460 | TEMP = (B ^ C ^ D) + 0x6ED9EBA1; | |
1461 | } else if (t < 60) { | |
1462 | TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; | |
1463 | } else { | |
1464 | TEMP = (B ^ C ^ D) + 0xCA62C1D6; | |
1465 | } | |
1466 | TEMP += S(5, A) + E + HashWorkingPointer[t]; | |
1467 | E = D; | |
1468 | D = C; | |
1469 | C = S(30, B); | |
1470 | B = A; | |
1471 | A = TEMP; | |
1472 | } while (++t <= 79); | |
1473 | ||
1474 | HashResultPointer[0] += A; | |
1475 | HashResultPointer[1] += B; | |
1476 | HashResultPointer[2] += C; | |
1477 | HashResultPointer[3] += D; | |
1478 | HashResultPointer[4] += E; | |
1479 | ||
1480 | } | |
1481 | ||
e59058c4 JS |
1482 | /** |
1483 | * lpfc_challenge_key: Create challenge key based on WWPN of the HBA. | |
1484 | * @RandomChallenge: pointer to the entry of host challenge random number array. | |
1485 | * @HashWorking: pointer to the entry of the working hash array. | |
1486 | * | |
1487 | * This routine calculates the working hash array referred by @HashWorking | |
1488 | * from the challenge random numbers associated with the host, referred by | |
1489 | * @RandomChallenge. The result is put into the entry of the working hash | |
1490 | * array and returned by reference through @HashWorking. | |
1491 | **/ | |
dea3101e JB |
1492 | static void |
1493 | lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) | |
1494 | { | |
1495 | *HashWorking = (*RandomChallenge ^ *HashWorking); | |
1496 | } | |
1497 | ||
e59058c4 JS |
1498 | /** |
1499 | * lpfc_hba_init: Perform special handling for LC HBA initialization. | |
1500 | * @phba: pointer to lpfc hba data structure. | |
1501 | * @hbainit: pointer to an array of unsigned 32-bit integers. | |
1502 | * | |
1503 | * This routine performs the special handling for LC HBA initialization. | |
1504 | **/ | |
dea3101e JB |
1505 | void |
1506 | lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) | |
1507 | { | |
1508 | int t; | |
1509 | uint32_t *HashWorking; | |
2e0fef85 | 1510 | uint32_t *pwwnn = (uint32_t *) phba->wwnn; |
dea3101e | 1511 | |
bbfbbbc1 | 1512 | HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); |
dea3101e JB |
1513 | if (!HashWorking) |
1514 | return; | |
1515 | ||
dea3101e JB |
1516 | HashWorking[0] = HashWorking[78] = *pwwnn++; |
1517 | HashWorking[1] = HashWorking[79] = *pwwnn; | |
1518 | ||
1519 | for (t = 0; t < 7; t++) | |
1520 | lpfc_challenge_key(phba->RandomData + t, HashWorking + t); | |
1521 | ||
1522 | lpfc_sha_init(hbainit); | |
1523 | lpfc_sha_iterate(hbainit, HashWorking); | |
1524 | kfree(HashWorking); | |
1525 | } | |
1526 | ||
e59058c4 JS |
1527 | /** |
1528 | * lpfc_cleanup: Performs vport cleanups before deleting a vport. | |
1529 | * @vport: pointer to a virtual N_Port data structure. | |
1530 | * | |
1531 | * This routine performs the necessary cleanups before deleting the @vport. | |
1532 | * It invokes the discovery state machine to perform necessary state | |
1533 | * transitions and to release the ndlps associated with the @vport. Note, | |
1534 | * the physical port is treated as @vport 0. | |
1535 | **/ | |
87af33fe | 1536 | void |
2e0fef85 | 1537 | lpfc_cleanup(struct lpfc_vport *vport) |
dea3101e | 1538 | { |
87af33fe | 1539 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 1540 | struct lpfc_nodelist *ndlp, *next_ndlp; |
a8adb832 | 1541 | int i = 0; |
dea3101e | 1542 | |
87af33fe JS |
1543 | if (phba->link_state > LPFC_LINK_DOWN) |
1544 | lpfc_port_link_failure(vport); | |
1545 | ||
1546 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
1547 | if (!NLP_CHK_NODE_ACT(ndlp)) { |
1548 | ndlp = lpfc_enable_node(vport, ndlp, | |
1549 | NLP_STE_UNUSED_NODE); | |
1550 | if (!ndlp) | |
1551 | continue; | |
1552 | spin_lock_irq(&phba->ndlp_lock); | |
1553 | NLP_SET_FREE_REQ(ndlp); | |
1554 | spin_unlock_irq(&phba->ndlp_lock); | |
1555 | /* Trigger the release of the ndlp memory */ | |
1556 | lpfc_nlp_put(ndlp); | |
1557 | continue; | |
1558 | } | |
1559 | spin_lock_irq(&phba->ndlp_lock); | |
1560 | if (NLP_CHK_FREE_REQ(ndlp)) { | |
1561 | /* The ndlp should not be in memory free mode already */ | |
1562 | spin_unlock_irq(&phba->ndlp_lock); | |
1563 | continue; | |
1564 | } else | |
1565 | /* Indicate request for freeing ndlp memory */ | |
1566 | NLP_SET_FREE_REQ(ndlp); | |
1567 | spin_unlock_irq(&phba->ndlp_lock); | |
1568 | ||
58da1ffb JS |
1569 | if (vport->port_type != LPFC_PHYSICAL_PORT && |
1570 | ndlp->nlp_DID == Fabric_DID) { | |
1571 | /* Just free up ndlp with Fabric_DID for vports */ | |
1572 | lpfc_nlp_put(ndlp); | |
1573 | continue; | |
1574 | } | |
1575 | ||
87af33fe JS |
1576 | if (ndlp->nlp_type & NLP_FABRIC) |
1577 | lpfc_disc_state_machine(vport, ndlp, NULL, | |
1578 | NLP_EVT_DEVICE_RECOVERY); | |
e47c9093 | 1579 | |
87af33fe JS |
1580 | lpfc_disc_state_machine(vport, ndlp, NULL, |
1581 | NLP_EVT_DEVICE_RM); | |
495a714c | 1582 | |
87af33fe JS |
1583 | } |
1584 | ||
a8adb832 JS |
1585 | /* At this point, ALL ndlp's should be gone |
1586 | * because of the previous NLP_EVT_DEVICE_RM. | |
1587 | * Lets wait for this to happen, if needed. | |
1588 | */ | |
87af33fe JS |
1589 | while (!list_empty(&vport->fc_nodes)) { |
1590 | ||
a8adb832 | 1591 | if (i++ > 3000) { |
87af33fe | 1592 | lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, |
a8adb832 | 1593 | "0233 Nodelist not empty\n"); |
e47c9093 JS |
1594 | list_for_each_entry_safe(ndlp, next_ndlp, |
1595 | &vport->fc_nodes, nlp_listp) { | |
1596 | lpfc_printf_vlog(ndlp->vport, KERN_ERR, | |
1597 | LOG_NODE, | |
1598 | "0282: did:x%x ndlp:x%p " | |
1599 | "usgmap:x%x refcnt:%d\n", | |
1600 | ndlp->nlp_DID, (void *)ndlp, | |
1601 | ndlp->nlp_usg_map, | |
1602 | atomic_read( | |
1603 | &ndlp->kref.refcount)); | |
1604 | } | |
a8adb832 | 1605 | break; |
87af33fe | 1606 | } |
a8adb832 JS |
1607 | |
1608 | /* Wait for any activity on ndlps to settle */ | |
1609 | msleep(10); | |
87af33fe | 1610 | } |
dea3101e JB |
1611 | return; |
1612 | } | |
1613 | ||
e59058c4 JS |
1614 | /** |
1615 | * lpfc_stop_vport_timers: Stop all the timers associated with a vport. | |
1616 | * @vport: pointer to a virtual N_Port data structure. | |
1617 | * | |
1618 | * This routine stops all the timers associated with a @vport. This function | |
1619 | * is invoked before disabling or deleting a @vport. Note that the physical | |
1620 | * port is treated as @vport 0. | |
1621 | **/ | |
92d7f7b0 JS |
1622 | void |
1623 | lpfc_stop_vport_timers(struct lpfc_vport *vport) | |
dea3101e | 1624 | { |
92d7f7b0 JS |
1625 | del_timer_sync(&vport->els_tmofunc); |
1626 | del_timer_sync(&vport->fc_fdmitmo); | |
1627 | lpfc_can_disctmo(vport); | |
1628 | return; | |
dea3101e JB |
1629 | } |
1630 | ||
e59058c4 JS |
1631 | /** |
1632 | * lpfc_stop_phba_timers: Stop all the timers associated with an HBA. | |
1633 | * @phba: pointer to lpfc hba data structure. | |
1634 | * | |
1635 | * This routine stops all the timers associated with a HBA. This function is | |
1636 | * invoked before either putting a HBA offline or unloading the driver. | |
1637 | **/ | |
2e0fef85 | 1638 | static void |
92d7f7b0 | 1639 | lpfc_stop_phba_timers(struct lpfc_hba *phba) |
dea3101e | 1640 | { |
875fbdfe | 1641 | del_timer_sync(&phba->fcp_poll_timer); |
51ef4c26 | 1642 | lpfc_stop_vport_timers(phba->pport); |
2e0fef85 | 1643 | del_timer_sync(&phba->sli.mbox_tmo); |
92d7f7b0 | 1644 | del_timer_sync(&phba->fabric_block_timer); |
858c9f6c JS |
1645 | phba->hb_outstanding = 0; |
1646 | del_timer_sync(&phba->hb_tmofunc); | |
2e0fef85 | 1647 | return; |
dea3101e JB |
1648 | } |
1649 | ||
e59058c4 JS |
1650 | /** |
1651 | * lpfc_block_mgmt_io: Mark a HBA's management interface as blocked. | |
1652 | * @phba: pointer to lpfc hba data structure. | |
1653 | * | |
1654 | * This routine marks a HBA's management interface as blocked. Once the HBA's | |
1655 | * management interface is marked as blocked, all the user space access to | |
1656 | * the HBA, whether they are from sysfs interface or libdfc interface will | |
1657 | * all be blocked. The HBA is set to block the management interface when the | |
1658 | * driver prepares the HBA interface for online or offline. | |
1659 | **/ | |
a6ababd2 AB |
1660 | static void |
1661 | lpfc_block_mgmt_io(struct lpfc_hba * phba) | |
1662 | { | |
1663 | unsigned long iflag; | |
1664 | ||
1665 | spin_lock_irqsave(&phba->hbalock, iflag); | |
1666 | phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; | |
1667 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
1668 | } | |
1669 | ||
e59058c4 JS |
1670 | /** |
1671 | * lpfc_online: Initialize and bring a HBA online. | |
1672 | * @phba: pointer to lpfc hba data structure. | |
1673 | * | |
1674 | * This routine initializes the HBA and brings a HBA online. During this | |
1675 | * process, the management interface is blocked to prevent user space access | |
1676 | * to the HBA interfering with the driver initialization. | |
1677 | * | |
1678 | * Return codes | |
1679 | * 0 - successful | |
1680 | * 1 - failed | |
1681 | **/ | |
dea3101e | 1682 | int |
2e0fef85 | 1683 | lpfc_online(struct lpfc_hba *phba) |
dea3101e | 1684 | { |
2e0fef85 | 1685 | struct lpfc_vport *vport = phba->pport; |
549e55cd JS |
1686 | struct lpfc_vport **vports; |
1687 | int i; | |
2e0fef85 | 1688 | |
dea3101e JB |
1689 | if (!phba) |
1690 | return 0; | |
1691 | ||
2e0fef85 | 1692 | if (!(vport->fc_flag & FC_OFFLINE_MODE)) |
dea3101e JB |
1693 | return 0; |
1694 | ||
ed957684 | 1695 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
e8b62011 | 1696 | "0458 Bring Adapter online\n"); |
dea3101e | 1697 | |
46fa311e JS |
1698 | lpfc_block_mgmt_io(phba); |
1699 | ||
1700 | if (!lpfc_sli_queue_setup(phba)) { | |
1701 | lpfc_unblock_mgmt_io(phba); | |
dea3101e | 1702 | return 1; |
46fa311e | 1703 | } |
dea3101e | 1704 | |
46fa311e JS |
1705 | if (lpfc_sli_hba_setup(phba)) { /* Initialize the HBA */ |
1706 | lpfc_unblock_mgmt_io(phba); | |
dea3101e | 1707 | return 1; |
46fa311e | 1708 | } |
dea3101e | 1709 | |
549e55cd JS |
1710 | vports = lpfc_create_vport_work_array(phba); |
1711 | if (vports != NULL) | |
09372820 | 1712 | for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { |
549e55cd JS |
1713 | struct Scsi_Host *shost; |
1714 | shost = lpfc_shost_from_vport(vports[i]); | |
1715 | spin_lock_irq(shost->host_lock); | |
1716 | vports[i]->fc_flag &= ~FC_OFFLINE_MODE; | |
1717 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) | |
1718 | vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
1719 | spin_unlock_irq(shost->host_lock); | |
1720 | } | |
09372820 | 1721 | lpfc_destroy_vport_work_array(phba, vports); |
dea3101e | 1722 | |
46fa311e | 1723 | lpfc_unblock_mgmt_io(phba); |
dea3101e JB |
1724 | return 0; |
1725 | } | |
1726 | ||
e59058c4 JS |
1727 | /** |
1728 | * lpfc_unblock_mgmt_io: Mark a HBA's management interface to be not blocked. | |
1729 | * @phba: pointer to lpfc hba data structure. | |
1730 | * | |
1731 | * This routine marks a HBA's management interface as not blocked. Once the | |
1732 | * HBA's management interface is marked as not blocked, all the user space | |
1733 | * access to the HBA, whether they are from sysfs interface or libdfc | |
1734 | * interface will be allowed. The HBA is set to block the management interface | |
1735 | * when the driver prepares the HBA interface for online or offline and then | |
1736 | * set to unblock the management interface afterwards. | |
1737 | **/ | |
46fa311e JS |
1738 | void |
1739 | lpfc_unblock_mgmt_io(struct lpfc_hba * phba) | |
1740 | { | |
1741 | unsigned long iflag; | |
1742 | ||
2e0fef85 JS |
1743 | spin_lock_irqsave(&phba->hbalock, iflag); |
1744 | phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; | |
1745 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
46fa311e JS |
1746 | } |
1747 | ||
e59058c4 JS |
1748 | /** |
1749 | * lpfc_offline_prep: Prepare a HBA to be brought offline. | |
1750 | * @phba: pointer to lpfc hba data structure. | |
1751 | * | |
1752 | * This routine is invoked to prepare a HBA to be brought offline. It performs | |
1753 | * unregistration login to all the nodes on all vports and flushes the mailbox | |
1754 | * queue to make it ready to be brought offline. | |
1755 | **/ | |
46fa311e JS |
1756 | void |
1757 | lpfc_offline_prep(struct lpfc_hba * phba) | |
1758 | { | |
2e0fef85 | 1759 | struct lpfc_vport *vport = phba->pport; |
46fa311e | 1760 | struct lpfc_nodelist *ndlp, *next_ndlp; |
87af33fe JS |
1761 | struct lpfc_vport **vports; |
1762 | int i; | |
dea3101e | 1763 | |
2e0fef85 | 1764 | if (vport->fc_flag & FC_OFFLINE_MODE) |
46fa311e | 1765 | return; |
dea3101e | 1766 | |
46fa311e | 1767 | lpfc_block_mgmt_io(phba); |
dea3101e JB |
1768 | |
1769 | lpfc_linkdown(phba); | |
1770 | ||
87af33fe JS |
1771 | /* Issue an unreg_login to all nodes on all vports */ |
1772 | vports = lpfc_create_vport_work_array(phba); | |
1773 | if (vports != NULL) { | |
09372820 | 1774 | for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { |
87af33fe JS |
1775 | struct Scsi_Host *shost; |
1776 | ||
a8adb832 JS |
1777 | if (vports[i]->load_flag & FC_UNLOADING) |
1778 | continue; | |
87af33fe JS |
1779 | shost = lpfc_shost_from_vport(vports[i]); |
1780 | list_for_each_entry_safe(ndlp, next_ndlp, | |
1781 | &vports[i]->fc_nodes, | |
1782 | nlp_listp) { | |
e47c9093 JS |
1783 | if (!NLP_CHK_NODE_ACT(ndlp)) |
1784 | continue; | |
87af33fe JS |
1785 | if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) |
1786 | continue; | |
1787 | if (ndlp->nlp_type & NLP_FABRIC) { | |
1788 | lpfc_disc_state_machine(vports[i], ndlp, | |
1789 | NULL, NLP_EVT_DEVICE_RECOVERY); | |
1790 | lpfc_disc_state_machine(vports[i], ndlp, | |
1791 | NULL, NLP_EVT_DEVICE_RM); | |
1792 | } | |
1793 | spin_lock_irq(shost->host_lock); | |
1794 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; | |
1795 | spin_unlock_irq(shost->host_lock); | |
1796 | lpfc_unreg_rpi(vports[i], ndlp); | |
1797 | } | |
1798 | } | |
1799 | } | |
09372820 | 1800 | lpfc_destroy_vport_work_array(phba, vports); |
dea3101e | 1801 | |
46fa311e JS |
1802 | lpfc_sli_flush_mbox_queue(phba); |
1803 | } | |
1804 | ||
e59058c4 JS |
1805 | /** |
1806 | * lpfc_offline: Bring a HBA offline. | |
1807 | * @phba: pointer to lpfc hba data structure. | |
1808 | * | |
1809 | * This routine actually brings a HBA offline. It stops all the timers | |
1810 | * associated with the HBA, brings down the SLI layer, and eventually | |
1811 | * marks the HBA as in offline state for the upper layer protocol. | |
1812 | **/ | |
46fa311e | 1813 | void |
2e0fef85 | 1814 | lpfc_offline(struct lpfc_hba *phba) |
46fa311e | 1815 | { |
549e55cd JS |
1816 | struct Scsi_Host *shost; |
1817 | struct lpfc_vport **vports; | |
1818 | int i; | |
46fa311e | 1819 | |
549e55cd | 1820 | if (phba->pport->fc_flag & FC_OFFLINE_MODE) |
46fa311e | 1821 | return; |
688a8863 | 1822 | |
dea3101e | 1823 | /* stop all timers associated with this hba */ |
92d7f7b0 | 1824 | lpfc_stop_phba_timers(phba); |
51ef4c26 JS |
1825 | vports = lpfc_create_vport_work_array(phba); |
1826 | if (vports != NULL) | |
09372820 | 1827 | for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) |
51ef4c26 | 1828 | lpfc_stop_vport_timers(vports[i]); |
09372820 | 1829 | lpfc_destroy_vport_work_array(phba, vports); |
92d7f7b0 | 1830 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
e8b62011 | 1831 | "0460 Bring Adapter offline\n"); |
dea3101e JB |
1832 | /* Bring down the SLI Layer and cleanup. The HBA is offline |
1833 | now. */ | |
1834 | lpfc_sli_hba_down(phba); | |
92d7f7b0 | 1835 | spin_lock_irq(&phba->hbalock); |
7054a606 | 1836 | phba->work_ha = 0; |
92d7f7b0 | 1837 | spin_unlock_irq(&phba->hbalock); |
549e55cd JS |
1838 | vports = lpfc_create_vport_work_array(phba); |
1839 | if (vports != NULL) | |
09372820 | 1840 | for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { |
549e55cd | 1841 | shost = lpfc_shost_from_vport(vports[i]); |
549e55cd JS |
1842 | spin_lock_irq(shost->host_lock); |
1843 | vports[i]->work_port_events = 0; | |
1844 | vports[i]->fc_flag |= FC_OFFLINE_MODE; | |
1845 | spin_unlock_irq(shost->host_lock); | |
1846 | } | |
09372820 | 1847 | lpfc_destroy_vport_work_array(phba, vports); |
dea3101e JB |
1848 | } |
1849 | ||
e59058c4 JS |
1850 | /** |
1851 | * lpfc_scsi_free: Free all the SCSI buffers and IOCBs from driver lists. | |
1852 | * @phba: pointer to lpfc hba data structure. | |
1853 | * | |
1854 | * This routine is to free all the SCSI buffers and IOCBs from the driver | |
1855 | * list back to kernel. It is called from lpfc_pci_remove_one to free | |
1856 | * the internal resources before the device is removed from the system. | |
1857 | * | |
1858 | * Return codes | |
1859 | * 0 - successful (for now, it always returns 0) | |
1860 | **/ | |
dea3101e | 1861 | static int |
2e0fef85 | 1862 | lpfc_scsi_free(struct lpfc_hba *phba) |
dea3101e JB |
1863 | { |
1864 | struct lpfc_scsi_buf *sb, *sb_next; | |
1865 | struct lpfc_iocbq *io, *io_next; | |
1866 | ||
2e0fef85 | 1867 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
1868 | /* Release all the lpfc_scsi_bufs maintained by this host. */ |
1869 | list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { | |
1870 | list_del(&sb->list); | |
1871 | pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, | |
92d7f7b0 | 1872 | sb->dma_handle); |
dea3101e JB |
1873 | kfree(sb); |
1874 | phba->total_scsi_bufs--; | |
1875 | } | |
1876 | ||
1877 | /* Release all the lpfc_iocbq entries maintained by this host. */ | |
1878 | list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { | |
1879 | list_del(&io->list); | |
1880 | kfree(io); | |
1881 | phba->total_iocbq_bufs--; | |
1882 | } | |
1883 | ||
2e0fef85 | 1884 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
1885 | |
1886 | return 0; | |
1887 | } | |
1888 | ||
e59058c4 JS |
1889 | /** |
1890 | * lpfc_create_port: Create an FC port. | |
1891 | * @phba: pointer to lpfc hba data structure. | |
1892 | * @instance: a unique integer ID to this FC port. | |
1893 | * @dev: pointer to the device data structure. | |
1894 | * | |
1895 | * This routine creates a FC port for the upper layer protocol. The FC port | |
1896 | * can be created on top of either a physical port or a virtual port provided | |
1897 | * by the HBA. This routine also allocates a SCSI host data structure (shost) | |
1898 | * and associates the FC port created before adding the shost into the SCSI | |
1899 | * layer. | |
1900 | * | |
1901 | * Return codes | |
1902 | * @vport - pointer to the virtual N_Port data structure. | |
1903 | * NULL - port create failed. | |
1904 | **/ | |
2e0fef85 | 1905 | struct lpfc_vport * |
3de2a653 | 1906 | lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) |
47a8617c | 1907 | { |
2e0fef85 JS |
1908 | struct lpfc_vport *vport; |
1909 | struct Scsi_Host *shost; | |
1910 | int error = 0; | |
47a8617c | 1911 | |
3de2a653 JS |
1912 | if (dev != &phba->pcidev->dev) |
1913 | shost = scsi_host_alloc(&lpfc_vport_template, | |
1914 | sizeof(struct lpfc_vport)); | |
1915 | else | |
1916 | shost = scsi_host_alloc(&lpfc_template, | |
1917 | sizeof(struct lpfc_vport)); | |
2e0fef85 JS |
1918 | if (!shost) |
1919 | goto out; | |
47a8617c | 1920 | |
2e0fef85 JS |
1921 | vport = (struct lpfc_vport *) shost->hostdata; |
1922 | vport->phba = phba; | |
2e0fef85 | 1923 | vport->load_flag |= FC_LOADING; |
92d7f7b0 | 1924 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
7f5f3d0d | 1925 | vport->fc_rscn_flush = 0; |
47a8617c | 1926 | |
3de2a653 | 1927 | lpfc_get_vport_cfgparam(vport); |
2e0fef85 JS |
1928 | shost->unique_id = instance; |
1929 | shost->max_id = LPFC_MAX_TARGET; | |
3de2a653 | 1930 | shost->max_lun = vport->cfg_max_luns; |
2e0fef85 JS |
1931 | shost->this_id = -1; |
1932 | shost->max_cmd_len = 16; | |
47a8617c | 1933 | /* |
2e0fef85 JS |
1934 | * Set initial can_queue value since 0 is no longer supported and |
1935 | * scsi_add_host will fail. This will be adjusted later based on the | |
1936 | * max xri value determined in hba setup. | |
47a8617c | 1937 | */ |
2e0fef85 | 1938 | shost->can_queue = phba->cfg_hba_queue_depth - 10; |
3de2a653 | 1939 | if (dev != &phba->pcidev->dev) { |
92d7f7b0 JS |
1940 | shost->transportt = lpfc_vport_transport_template; |
1941 | vport->port_type = LPFC_NPIV_PORT; | |
1942 | } else { | |
1943 | shost->transportt = lpfc_transport_template; | |
1944 | vport->port_type = LPFC_PHYSICAL_PORT; | |
1945 | } | |
47a8617c | 1946 | |
2e0fef85 JS |
1947 | /* Initialize all internally managed lists. */ |
1948 | INIT_LIST_HEAD(&vport->fc_nodes); | |
1949 | spin_lock_init(&vport->work_port_lock); | |
47a8617c | 1950 | |
2e0fef85 JS |
1951 | init_timer(&vport->fc_disctmo); |
1952 | vport->fc_disctmo.function = lpfc_disc_timeout; | |
92d7f7b0 | 1953 | vport->fc_disctmo.data = (unsigned long)vport; |
47a8617c | 1954 | |
2e0fef85 JS |
1955 | init_timer(&vport->fc_fdmitmo); |
1956 | vport->fc_fdmitmo.function = lpfc_fdmi_tmo; | |
92d7f7b0 | 1957 | vport->fc_fdmitmo.data = (unsigned long)vport; |
47a8617c | 1958 | |
2e0fef85 JS |
1959 | init_timer(&vport->els_tmofunc); |
1960 | vport->els_tmofunc.function = lpfc_els_timeout; | |
92d7f7b0 | 1961 | vport->els_tmofunc.data = (unsigned long)vport; |
47a8617c | 1962 | |
3de2a653 | 1963 | error = scsi_add_host(shost, dev); |
2e0fef85 JS |
1964 | if (error) |
1965 | goto out_put_shost; | |
47a8617c | 1966 | |
549e55cd | 1967 | spin_lock_irq(&phba->hbalock); |
2e0fef85 | 1968 | list_add_tail(&vport->listentry, &phba->port_list); |
549e55cd | 1969 | spin_unlock_irq(&phba->hbalock); |
2e0fef85 | 1970 | return vport; |
47a8617c | 1971 | |
2e0fef85 JS |
1972 | out_put_shost: |
1973 | scsi_host_put(shost); | |
1974 | out: | |
1975 | return NULL; | |
47a8617c JS |
1976 | } |
1977 | ||
e59058c4 JS |
1978 | /** |
1979 | * destroy_port: Destroy an FC port. | |
1980 | * @vport: pointer to an lpfc virtual N_Port data structure. | |
1981 | * | |
1982 | * This routine destroys a FC port from the upper layer protocol. All the | |
1983 | * resources associated with the port are released. | |
1984 | **/ | |
2e0fef85 JS |
1985 | void |
1986 | destroy_port(struct lpfc_vport *vport) | |
47a8617c | 1987 | { |
92d7f7b0 JS |
1988 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
1989 | struct lpfc_hba *phba = vport->phba; | |
47a8617c | 1990 | |
92d7f7b0 | 1991 | kfree(vport->vname); |
47a8617c | 1992 | |
858c9f6c | 1993 | lpfc_debugfs_terminate(vport); |
92d7f7b0 JS |
1994 | fc_remove_host(shost); |
1995 | scsi_remove_host(shost); | |
47a8617c | 1996 | |
92d7f7b0 JS |
1997 | spin_lock_irq(&phba->hbalock); |
1998 | list_del_init(&vport->listentry); | |
1999 | spin_unlock_irq(&phba->hbalock); | |
47a8617c | 2000 | |
92d7f7b0 | 2001 | lpfc_cleanup(vport); |
47a8617c | 2002 | return; |
47a8617c JS |
2003 | } |
2004 | ||
e59058c4 JS |
2005 | /** |
2006 | * lpfc_get_instance: Get a unique integer ID. | |
2007 | * | |
2008 | * This routine allocates a unique integer ID from lpfc_hba_index pool. It | |
2009 | * uses the kernel idr facility to perform the task. | |
2010 | * | |
2011 | * Return codes: | |
2012 | * instance - a unique integer ID allocated as the new instance. | |
2013 | * -1 - lpfc get instance failed. | |
2014 | **/ | |
92d7f7b0 JS |
2015 | int |
2016 | lpfc_get_instance(void) | |
2017 | { | |
2018 | int instance = 0; | |
47a8617c | 2019 | |
92d7f7b0 JS |
2020 | /* Assign an unused number */ |
2021 | if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) | |
2022 | return -1; | |
2023 | if (idr_get_new(&lpfc_hba_index, NULL, &instance)) | |
2024 | return -1; | |
2025 | return instance; | |
47a8617c JS |
2026 | } |
2027 | ||
e59058c4 JS |
2028 | /** |
2029 | * lpfc_scan_finished: method for SCSI layer to detect whether scan is done. | |
2030 | * @shost: pointer to SCSI host data structure. | |
2031 | * @time: elapsed time of the scan in jiffies. | |
2032 | * | |
2033 | * This routine is called by the SCSI layer with a SCSI host to determine | |
2034 | * whether the scan host is finished. | |
2035 | * | |
2036 | * Note: there is no scan_start function as adapter initialization will have | |
2037 | * asynchronously kicked off the link initialization. | |
2038 | * | |
2039 | * Return codes | |
2040 | * 0 - SCSI host scan is not over yet. | |
2041 | * 1 - SCSI host scan is over. | |
2042 | **/ | |
47a8617c JS |
2043 | int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) |
2044 | { | |
2e0fef85 JS |
2045 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
2046 | struct lpfc_hba *phba = vport->phba; | |
858c9f6c | 2047 | int stat = 0; |
47a8617c | 2048 | |
858c9f6c JS |
2049 | spin_lock_irq(shost->host_lock); |
2050 | ||
51ef4c26 | 2051 | if (vport->load_flag & FC_UNLOADING) { |
858c9f6c JS |
2052 | stat = 1; |
2053 | goto finished; | |
2054 | } | |
2e0fef85 JS |
2055 | if (time >= 30 * HZ) { |
2056 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
e8b62011 JS |
2057 | "0461 Scanning longer than 30 " |
2058 | "seconds. Continuing initialization\n"); | |
858c9f6c | 2059 | stat = 1; |
47a8617c | 2060 | goto finished; |
2e0fef85 JS |
2061 | } |
2062 | if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { | |
2063 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
e8b62011 JS |
2064 | "0465 Link down longer than 15 " |
2065 | "seconds. Continuing initialization\n"); | |
858c9f6c | 2066 | stat = 1; |
47a8617c | 2067 | goto finished; |
2e0fef85 | 2068 | } |
47a8617c | 2069 | |
2e0fef85 | 2070 | if (vport->port_state != LPFC_VPORT_READY) |
858c9f6c | 2071 | goto finished; |
2e0fef85 | 2072 | if (vport->num_disc_nodes || vport->fc_prli_sent) |
858c9f6c | 2073 | goto finished; |
2e0fef85 | 2074 | if (vport->fc_map_cnt == 0 && time < 2 * HZ) |
858c9f6c | 2075 | goto finished; |
2e0fef85 | 2076 | if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) |
858c9f6c JS |
2077 | goto finished; |
2078 | ||
2079 | stat = 1; | |
47a8617c JS |
2080 | |
2081 | finished: | |
858c9f6c JS |
2082 | spin_unlock_irq(shost->host_lock); |
2083 | return stat; | |
92d7f7b0 | 2084 | } |
47a8617c | 2085 | |
e59058c4 JS |
2086 | /** |
2087 | * lpfc_host_attrib_init: Initialize SCSI host attributes on a FC port. | |
2088 | * @shost: pointer to SCSI host data structure. | |
2089 | * | |
2090 | * This routine initializes a given SCSI host attributes on a FC port. The | |
2091 | * SCSI host can be either on top of a physical port or a virtual port. | |
2092 | **/ | |
92d7f7b0 JS |
2093 | void lpfc_host_attrib_init(struct Scsi_Host *shost) |
2094 | { | |
2095 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
2096 | struct lpfc_hba *phba = vport->phba; | |
47a8617c | 2097 | /* |
2e0fef85 | 2098 | * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). |
47a8617c JS |
2099 | */ |
2100 | ||
2e0fef85 JS |
2101 | fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); |
2102 | fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); | |
47a8617c JS |
2103 | fc_host_supported_classes(shost) = FC_COS_CLASS3; |
2104 | ||
2105 | memset(fc_host_supported_fc4s(shost), 0, | |
2e0fef85 | 2106 | sizeof(fc_host_supported_fc4s(shost))); |
47a8617c JS |
2107 | fc_host_supported_fc4s(shost)[2] = 1; |
2108 | fc_host_supported_fc4s(shost)[7] = 1; | |
2109 | ||
92d7f7b0 JS |
2110 | lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), |
2111 | sizeof fc_host_symbolic_name(shost)); | |
47a8617c JS |
2112 | |
2113 | fc_host_supported_speeds(shost) = 0; | |
2114 | if (phba->lmt & LMT_10Gb) | |
2115 | fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; | |
a8adb832 JS |
2116 | if (phba->lmt & LMT_8Gb) |
2117 | fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; | |
47a8617c JS |
2118 | if (phba->lmt & LMT_4Gb) |
2119 | fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; | |
2120 | if (phba->lmt & LMT_2Gb) | |
2121 | fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; | |
2122 | if (phba->lmt & LMT_1Gb) | |
2123 | fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; | |
2124 | ||
2125 | fc_host_maxframe_size(shost) = | |
2e0fef85 JS |
2126 | (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | |
2127 | (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; | |
47a8617c JS |
2128 | |
2129 | /* This value is also unchanging */ | |
2130 | memset(fc_host_active_fc4s(shost), 0, | |
2e0fef85 | 2131 | sizeof(fc_host_active_fc4s(shost))); |
47a8617c JS |
2132 | fc_host_active_fc4s(shost)[2] = 1; |
2133 | fc_host_active_fc4s(shost)[7] = 1; | |
2134 | ||
92d7f7b0 | 2135 | fc_host_max_npiv_vports(shost) = phba->max_vpi; |
47a8617c | 2136 | spin_lock_irq(shost->host_lock); |
51ef4c26 | 2137 | vport->load_flag &= ~FC_LOADING; |
47a8617c | 2138 | spin_unlock_irq(shost->host_lock); |
47a8617c | 2139 | } |
dea3101e | 2140 | |
e59058c4 JS |
2141 | /** |
2142 | * lpfc_enable_msix: Enable MSI-X interrupt mode. | |
2143 | * @phba: pointer to lpfc hba data structure. | |
2144 | * | |
2145 | * This routine is invoked to enable the MSI-X interrupt vectors. The kernel | |
2146 | * function pci_enable_msix() is called to enable the MSI-X vectors. Note that | |
2147 | * pci_enable_msix(), once invoked, enables either all or nothing, depending | |
2148 | * on the current availability of PCI vector resources. The device driver is | |
2149 | * responsible for calling the individual request_irq() to register each MSI-X | |
2150 | * vector with a interrupt handler, which is done in this function. Note that | |
2151 | * later when device is unloading, the driver should always call free_irq() | |
2152 | * on all MSI-X vectors it has done request_irq() on before calling | |
2153 | * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device | |
2154 | * will be left with MSI-X enabled and leaks its vectors. | |
2155 | * | |
2156 | * Return codes | |
2157 | * 0 - sucessful | |
2158 | * other values - error | |
2159 | **/ | |
db2378e0 JS |
2160 | static int |
2161 | lpfc_enable_msix(struct lpfc_hba *phba) | |
2162 | { | |
2163 | int error; | |
2164 | ||
2165 | phba->msix_entries[0].entry = 0; | |
2166 | phba->msix_entries[0].vector = 0; | |
2167 | ||
2168 | error = pci_enable_msix(phba->pcidev, phba->msix_entries, | |
2169 | ARRAY_SIZE(phba->msix_entries)); | |
2170 | if (error) { | |
2171 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
2172 | "0420 Enable MSI-X failed (%d), continuing " | |
2173 | "with MSI\n", error); | |
2174 | pci_disable_msix(phba->pcidev); | |
2175 | return error; | |
2176 | } | |
2177 | ||
2178 | error = request_irq(phba->msix_entries[0].vector, lpfc_intr_handler, 0, | |
2179 | LPFC_DRIVER_NAME, phba); | |
2180 | if (error) { | |
2181 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
2182 | "0421 MSI-X request_irq failed (%d), " | |
2183 | "continuing with MSI\n", error); | |
2184 | pci_disable_msix(phba->pcidev); | |
2185 | } | |
2186 | return error; | |
2187 | } | |
2188 | ||
e59058c4 JS |
2189 | /** |
2190 | * lpfc_disable_msix: Disable MSI-X interrupt mode. | |
2191 | * @phba: pointer to lpfc hba data structure. | |
2192 | * | |
2193 | * This routine is invoked to release the MSI-X vectors and then disable the | |
2194 | * MSI-X interrupt mode. | |
2195 | **/ | |
db2378e0 JS |
2196 | static void |
2197 | lpfc_disable_msix(struct lpfc_hba *phba) | |
2198 | { | |
2199 | free_irq(phba->msix_entries[0].vector, phba); | |
2200 | pci_disable_msix(phba->pcidev); | |
2201 | } | |
2202 | ||
e59058c4 JS |
2203 | /** |
2204 | * lpfc_pci_probe_one: lpfc PCI probe func to register device to PCI subsystem. | |
2205 | * @pdev: pointer to PCI device | |
2206 | * @pid: pointer to PCI device identifier | |
2207 | * | |
2208 | * This routine is to be registered to the kernel's PCI subsystem. When an | |
2209 | * Emulex HBA is presented in PCI bus, the kernel PCI subsystem looks at | |
2210 | * PCI device-specific information of the device and driver to see if the | |
2211 | * driver state that it can support this kind of device. If the match is | |
2212 | * successful, the driver core invokes this routine. If this routine | |
2213 | * determines it can claim the HBA, it does all the initialization that it | |
2214 | * needs to do to handle the HBA properly. | |
2215 | * | |
2216 | * Return code | |
2217 | * 0 - driver can claim the device | |
2218 | * negative value - driver can not claim the device | |
2219 | **/ | |
dea3101e JB |
2220 | static int __devinit |
2221 | lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) | |
2222 | { | |
2e0fef85 JS |
2223 | struct lpfc_vport *vport = NULL; |
2224 | struct lpfc_hba *phba; | |
2225 | struct lpfc_sli *psli; | |
dea3101e | 2226 | struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; |
2e0fef85 | 2227 | struct Scsi_Host *shost = NULL; |
51ef4c26 | 2228 | void *ptr; |
dea3101e | 2229 | unsigned long bar0map_len, bar2map_len; |
98c9ea5c | 2230 | int error = -ENODEV, retval; |
51ef4c26 | 2231 | int i, hbq_count; |
604a3e30 | 2232 | uint16_t iotag; |
8a4df120 | 2233 | int bars = pci_select_bars(pdev, IORESOURCE_MEM); |
dea3101e | 2234 | |
d5f78fb0 | 2235 | if (pci_enable_device_mem(pdev)) |
dea3101e | 2236 | goto out; |
8a4df120 | 2237 | if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) |
dea3101e JB |
2238 | goto out_disable_device; |
2239 | ||
2e0fef85 JS |
2240 | phba = kzalloc(sizeof (struct lpfc_hba), GFP_KERNEL); |
2241 | if (!phba) | |
dea3101e JB |
2242 | goto out_release_regions; |
2243 | ||
2e0fef85 | 2244 | spin_lock_init(&phba->hbalock); |
dea3101e | 2245 | |
e47c9093 JS |
2246 | /* Initialize ndlp management spinlock */ |
2247 | spin_lock_init(&phba->ndlp_lock); | |
2248 | ||
dea3101e JB |
2249 | phba->pcidev = pdev; |
2250 | ||
2251 | /* Assign an unused board number */ | |
92d7f7b0 | 2252 | if ((phba->brd_no = lpfc_get_instance()) < 0) |
2e0fef85 | 2253 | goto out_free_phba; |
dea3101e | 2254 | |
2e0fef85 | 2255 | INIT_LIST_HEAD(&phba->port_list); |
2e0fef85 JS |
2256 | /* |
2257 | * Get all the module params for configuring this host and then | |
2258 | * establish the host. | |
2259 | */ | |
2260 | lpfc_get_cfgparam(phba); | |
92d7f7b0 | 2261 | phba->max_vpi = LPFC_MAX_VPI; |
dea3101e JB |
2262 | |
2263 | /* Initialize timers used by driver */ | |
858c9f6c JS |
2264 | init_timer(&phba->hb_tmofunc); |
2265 | phba->hb_tmofunc.function = lpfc_hb_timeout; | |
2266 | phba->hb_tmofunc.data = (unsigned long)phba; | |
2267 | ||
dea3101e JB |
2268 | psli = &phba->sli; |
2269 | init_timer(&psli->mbox_tmo); | |
2270 | psli->mbox_tmo.function = lpfc_mbox_timeout; | |
2e0fef85 | 2271 | psli->mbox_tmo.data = (unsigned long) phba; |
875fbdfe JSEC |
2272 | init_timer(&phba->fcp_poll_timer); |
2273 | phba->fcp_poll_timer.function = lpfc_poll_timeout; | |
2e0fef85 | 2274 | phba->fcp_poll_timer.data = (unsigned long) phba; |
92d7f7b0 JS |
2275 | init_timer(&phba->fabric_block_timer); |
2276 | phba->fabric_block_timer.function = lpfc_fabric_block_timeout; | |
2277 | phba->fabric_block_timer.data = (unsigned long) phba; | |
dea3101e | 2278 | |
dea3101e | 2279 | pci_set_master(pdev); |
694625c0 | 2280 | pci_try_set_mwi(pdev); |
dea3101e JB |
2281 | |
2282 | if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0) | |
2283 | if (pci_set_dma_mask(phba->pcidev, DMA_32BIT_MASK) != 0) | |
2284 | goto out_idr_remove; | |
2285 | ||
2286 | /* | |
2287 | * Get the bus address of Bar0 and Bar2 and the number of bytes | |
2288 | * required by each mapping. | |
2289 | */ | |
2290 | phba->pci_bar0_map = pci_resource_start(phba->pcidev, 0); | |
2291 | bar0map_len = pci_resource_len(phba->pcidev, 0); | |
2292 | ||
2293 | phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2); | |
2294 | bar2map_len = pci_resource_len(phba->pcidev, 2); | |
2295 | ||
901a920f | 2296 | /* Map HBA SLIM to a kernel virtual address. */ |
dea3101e | 2297 | phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); |
901a920f JW |
2298 | if (!phba->slim_memmap_p) { |
2299 | error = -ENODEV; | |
2300 | dev_printk(KERN_ERR, &pdev->dev, | |
2301 | "ioremap failed for SLIM memory.\n"); | |
2302 | goto out_idr_remove; | |
2303 | } | |
2304 | ||
2305 | /* Map HBA Control Registers to a kernel virtual address. */ | |
dea3101e | 2306 | phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); |
901a920f JW |
2307 | if (!phba->ctrl_regs_memmap_p) { |
2308 | error = -ENODEV; | |
2309 | dev_printk(KERN_ERR, &pdev->dev, | |
2310 | "ioremap failed for HBA control registers.\n"); | |
2311 | goto out_iounmap_slim; | |
2312 | } | |
dea3101e JB |
2313 | |
2314 | /* Allocate memory for SLI-2 structures */ | |
34b02dcd JS |
2315 | phba->slim2p.virt = dma_alloc_coherent(&phba->pcidev->dev, |
2316 | SLI2_SLIM_SIZE, | |
2317 | &phba->slim2p.phys, | |
2318 | GFP_KERNEL); | |
2319 | if (!phba->slim2p.virt) | |
dea3101e JB |
2320 | goto out_iounmap; |
2321 | ||
34b02dcd JS |
2322 | memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); |
2323 | phba->mbox = phba->slim2p.virt; | |
2324 | phba->pcb = (phba->slim2p.virt + sizeof(MAILBOX_t)); | |
2325 | phba->IOCBs = (phba->slim2p.virt + sizeof(MAILBOX_t) + | |
2326 | sizeof(struct _PCB)); | |
dea3101e | 2327 | |
ed957684 JS |
2328 | phba->hbqslimp.virt = dma_alloc_coherent(&phba->pcidev->dev, |
2329 | lpfc_sli_hbq_size(), | |
2330 | &phba->hbqslimp.phys, | |
2331 | GFP_KERNEL); | |
2332 | if (!phba->hbqslimp.virt) | |
2333 | goto out_free_slim; | |
2334 | ||
51ef4c26 JS |
2335 | hbq_count = lpfc_sli_hbq_count(); |
2336 | ptr = phba->hbqslimp.virt; | |
2337 | for (i = 0; i < hbq_count; ++i) { | |
2338 | phba->hbqs[i].hbq_virt = ptr; | |
2339 | INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); | |
2340 | ptr += (lpfc_hbq_defs[i]->entry_count * | |
2341 | sizeof(struct lpfc_hbq_entry)); | |
2342 | } | |
2343 | phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; | |
2344 | phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; | |
2345 | ||
ed957684 JS |
2346 | memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); |
2347 | ||
3163f725 JS |
2348 | INIT_LIST_HEAD(&phba->hbqbuf_in_list); |
2349 | ||
dea3101e JB |
2350 | /* Initialize the SLI Layer to run with lpfc HBAs. */ |
2351 | lpfc_sli_setup(phba); | |
2352 | lpfc_sli_queue_setup(phba); | |
2353 | ||
98c9ea5c JS |
2354 | retval = lpfc_mem_alloc(phba); |
2355 | if (retval) { | |
2356 | error = retval; | |
ed957684 | 2357 | goto out_free_hbqslimp; |
98c9ea5c | 2358 | } |
dea3101e JB |
2359 | |
2360 | /* Initialize and populate the iocb list per host. */ | |
2361 | INIT_LIST_HEAD(&phba->lpfc_iocb_list); | |
2362 | for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) { | |
dd00cc48 | 2363 | iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); |
dea3101e JB |
2364 | if (iocbq_entry == NULL) { |
2365 | printk(KERN_ERR "%s: only allocated %d iocbs of " | |
2366 | "expected %d count. Unloading driver.\n", | |
cadbd4a5 | 2367 | __func__, i, LPFC_IOCB_LIST_CNT); |
dea3101e JB |
2368 | error = -ENOMEM; |
2369 | goto out_free_iocbq; | |
2370 | } | |
2371 | ||
604a3e30 JB |
2372 | iotag = lpfc_sli_next_iotag(phba, iocbq_entry); |
2373 | if (iotag == 0) { | |
2374 | kfree (iocbq_entry); | |
2375 | printk(KERN_ERR "%s: failed to allocate IOTAG. " | |
2376 | "Unloading driver.\n", | |
cadbd4a5 | 2377 | __func__); |
604a3e30 JB |
2378 | error = -ENOMEM; |
2379 | goto out_free_iocbq; | |
2380 | } | |
2e0fef85 JS |
2381 | |
2382 | spin_lock_irq(&phba->hbalock); | |
dea3101e JB |
2383 | list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); |
2384 | phba->total_iocbq_bufs++; | |
2e0fef85 | 2385 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
2386 | } |
2387 | ||
2388 | /* Initialize HBA structure */ | |
2389 | phba->fc_edtov = FF_DEF_EDTOV; | |
2390 | phba->fc_ratov = FF_DEF_RATOV; | |
2391 | phba->fc_altov = FF_DEF_ALTOV; | |
2392 | phba->fc_arbtov = FF_DEF_ARBTOV; | |
2393 | ||
2394 | INIT_LIST_HEAD(&phba->work_list); | |
2395 | phba->work_ha_mask = (HA_ERATT|HA_MBATT|HA_LATT); | |
2396 | phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); | |
2397 | ||
5e9d9b82 JS |
2398 | /* Initialize the wait queue head for the kernel thread */ |
2399 | init_waitqueue_head(&phba->work_waitq); | |
2400 | ||
dea3101e JB |
2401 | /* Startup the kernel thread for this host adapter. */ |
2402 | phba->worker_thread = kthread_run(lpfc_do_work, phba, | |
2403 | "lpfc_worker_%d", phba->brd_no); | |
2404 | if (IS_ERR(phba->worker_thread)) { | |
2405 | error = PTR_ERR(phba->worker_thread); | |
2406 | goto out_free_iocbq; | |
2407 | } | |
2408 | ||
dea3101e | 2409 | /* Initialize the list of scsi buffers used by driver for scsi IO. */ |
875fbdfe | 2410 | spin_lock_init(&phba->scsi_buf_list_lock); |
dea3101e JB |
2411 | INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); |
2412 | ||
92d7f7b0 JS |
2413 | /* Initialize list of fabric iocbs */ |
2414 | INIT_LIST_HEAD(&phba->fabric_iocb_list); | |
2415 | ||
0ff10d46 JS |
2416 | /* Initialize list to save ELS buffers */ |
2417 | INIT_LIST_HEAD(&phba->elsbuf); | |
2418 | ||
3de2a653 | 2419 | vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); |
2e0fef85 JS |
2420 | if (!vport) |
2421 | goto out_kthread_stop; | |
2422 | ||
2423 | shost = lpfc_shost_from_vport(vport); | |
2e0fef85 | 2424 | phba->pport = vport; |
858c9f6c | 2425 | lpfc_debugfs_initialize(vport); |
2e0fef85 | 2426 | |
92d7f7b0 | 2427 | pci_set_drvdata(pdev, shost); |
db2378e0 JS |
2428 | phba->intr_type = NONE; |
2429 | ||
2430 | if (phba->cfg_use_msi == 2) { | |
2431 | error = lpfc_enable_msix(phba); | |
2432 | if (!error) | |
2433 | phba->intr_type = MSIX; | |
2434 | } | |
dea3101e | 2435 | |
db2378e0 JS |
2436 | /* Fallback to MSI if MSI-X initialization failed */ |
2437 | if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) { | |
98c9ea5c JS |
2438 | retval = pci_enable_msi(phba->pcidev); |
2439 | if (!retval) | |
db2378e0 | 2440 | phba->intr_type = MSI; |
51ef4c26 | 2441 | else |
e8b62011 JS |
2442 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
2443 | "0452 Enable MSI failed, continuing " | |
2444 | "with IRQ\n"); | |
4ff43246 JS |
2445 | } |
2446 | ||
db2378e0 JS |
2447 | /* MSI-X is the only case the doesn't need to call request_irq */ |
2448 | if (phba->intr_type != MSIX) { | |
2449 | retval = request_irq(phba->pcidev->irq, lpfc_intr_handler, | |
2450 | IRQF_SHARED, LPFC_DRIVER_NAME, phba); | |
2451 | if (retval) { | |
2452 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0451 Enable " | |
2453 | "interrupt handler failed\n"); | |
2454 | error = retval; | |
2455 | goto out_disable_msi; | |
2456 | } else if (phba->intr_type != MSI) | |
2457 | phba->intr_type = INTx; | |
dea3101e | 2458 | } |
dea3101e | 2459 | |
2e0fef85 JS |
2460 | phba->MBslimaddr = phba->slim_memmap_p; |
2461 | phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; | |
2462 | phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; | |
2463 | phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; | |
2464 | phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; | |
2465 | ||
98c9ea5c JS |
2466 | if (lpfc_alloc_sysfs_attr(vport)) { |
2467 | error = -ENOMEM; | |
dea3101e | 2468 | goto out_free_irq; |
98c9ea5c | 2469 | } |
875fbdfe | 2470 | |
98c9ea5c JS |
2471 | if (lpfc_sli_hba_setup(phba)) { |
2472 | error = -ENODEV; | |
858c9f6c | 2473 | goto out_remove_device; |
98c9ea5c | 2474 | } |
858c9f6c JS |
2475 | |
2476 | /* | |
2477 | * hba setup may have changed the hba_queue_depth so we need to adjust | |
2478 | * the value of can_queue. | |
2479 | */ | |
2480 | shost->can_queue = phba->cfg_hba_queue_depth - 10; | |
2481 | ||
2482 | lpfc_host_attrib_init(shost); | |
2483 | ||
2e0fef85 JS |
2484 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
2485 | spin_lock_irq(shost->host_lock); | |
2486 | lpfc_poll_start_timer(phba); | |
2487 | spin_unlock_irq(shost->host_lock); | |
2488 | } | |
dea3101e | 2489 | |
858c9f6c | 2490 | scsi_scan_host(shost); |
dea3101e | 2491 | |
dea3101e JB |
2492 | return 0; |
2493 | ||
858c9f6c JS |
2494 | out_remove_device: |
2495 | lpfc_free_sysfs_attr(vport); | |
2496 | spin_lock_irq(shost->host_lock); | |
51ef4c26 | 2497 | vport->load_flag |= FC_UNLOADING; |
858c9f6c | 2498 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2499 | out_free_irq: |
92d7f7b0 | 2500 | lpfc_stop_phba_timers(phba); |
2e0fef85 | 2501 | phba->pport->work_port_events = 0; |
db2378e0 JS |
2502 | |
2503 | if (phba->intr_type == MSIX) | |
2504 | lpfc_disable_msix(phba); | |
2505 | else | |
2506 | free_irq(phba->pcidev->irq, phba); | |
2507 | ||
92d7f7b0 | 2508 | out_disable_msi: |
db2378e0 | 2509 | if (phba->intr_type == MSI) |
51ef4c26 | 2510 | pci_disable_msi(phba->pcidev); |
2e0fef85 | 2511 | destroy_port(vport); |
dea3101e JB |
2512 | out_kthread_stop: |
2513 | kthread_stop(phba->worker_thread); | |
2514 | out_free_iocbq: | |
2515 | list_for_each_entry_safe(iocbq_entry, iocbq_next, | |
2516 | &phba->lpfc_iocb_list, list) { | |
dea3101e JB |
2517 | kfree(iocbq_entry); |
2518 | phba->total_iocbq_bufs--; | |
dea3101e JB |
2519 | } |
2520 | lpfc_mem_free(phba); | |
ed957684 | 2521 | out_free_hbqslimp: |
34b02dcd JS |
2522 | dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), |
2523 | phba->hbqslimp.virt, phba->hbqslimp.phys); | |
dea3101e | 2524 | out_free_slim: |
34b02dcd JS |
2525 | dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, |
2526 | phba->slim2p.virt, phba->slim2p.phys); | |
dea3101e JB |
2527 | out_iounmap: |
2528 | iounmap(phba->ctrl_regs_memmap_p); | |
901a920f | 2529 | out_iounmap_slim: |
dea3101e JB |
2530 | iounmap(phba->slim_memmap_p); |
2531 | out_idr_remove: | |
2532 | idr_remove(&lpfc_hba_index, phba->brd_no); | |
2e0fef85 JS |
2533 | out_free_phba: |
2534 | kfree(phba); | |
dea3101e | 2535 | out_release_regions: |
8a4df120 | 2536 | pci_release_selected_regions(pdev, bars); |
dea3101e JB |
2537 | out_disable_device: |
2538 | pci_disable_device(pdev); | |
2539 | out: | |
defbcf11 | 2540 | pci_set_drvdata(pdev, NULL); |
858c9f6c JS |
2541 | if (shost) |
2542 | scsi_host_put(shost); | |
dea3101e JB |
2543 | return error; |
2544 | } | |
2545 | ||
e59058c4 JS |
2546 | /** |
2547 | * lpfc_pci_remove_one: lpfc PCI func to unregister device from PCI subsystem. | |
2548 | * @pdev: pointer to PCI device | |
2549 | * | |
2550 | * This routine is to be registered to the kernel's PCI subsystem. When an | |
2551 | * Emulex HBA is removed from PCI bus. It perform all the necessary cleanup | |
2552 | * for the HBA device to be removed from the PCI subsystem properly. | |
2553 | **/ | |
dea3101e JB |
2554 | static void __devexit |
2555 | lpfc_pci_remove_one(struct pci_dev *pdev) | |
2556 | { | |
2e0fef85 JS |
2557 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
2558 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
2559 | struct lpfc_hba *phba = vport->phba; | |
8a4df120 TK |
2560 | int bars = pci_select_bars(pdev, IORESOURCE_MEM); |
2561 | ||
549e55cd | 2562 | spin_lock_irq(&phba->hbalock); |
51ef4c26 | 2563 | vport->load_flag |= FC_UNLOADING; |
549e55cd | 2564 | spin_unlock_irq(&phba->hbalock); |
2e0fef85 | 2565 | |
858c9f6c JS |
2566 | kfree(vport->vname); |
2567 | lpfc_free_sysfs_attr(vport); | |
2568 | ||
09372820 JS |
2569 | kthread_stop(phba->worker_thread); |
2570 | ||
858c9f6c JS |
2571 | fc_remove_host(shost); |
2572 | scsi_remove_host(shost); | |
87af33fe JS |
2573 | lpfc_cleanup(vport); |
2574 | ||
2e0fef85 JS |
2575 | /* |
2576 | * Bring down the SLI Layer. This step disable all interrupts, | |
2577 | * clears the rings, discards all mailbox commands, and resets | |
2578 | * the HBA. | |
2579 | */ | |
2580 | lpfc_sli_hba_down(phba); | |
2581 | lpfc_sli_brdrestart(phba); | |
2582 | ||
92d7f7b0 | 2583 | lpfc_stop_phba_timers(phba); |
858c9f6c JS |
2584 | spin_lock_irq(&phba->hbalock); |
2585 | list_del_init(&vport->listentry); | |
2586 | spin_unlock_irq(&phba->hbalock); | |
2587 | ||
858c9f6c | 2588 | lpfc_debugfs_terminate(vport); |
2e0fef85 | 2589 | |
db2378e0 JS |
2590 | if (phba->intr_type == MSIX) |
2591 | lpfc_disable_msix(phba); | |
2592 | else { | |
2593 | free_irq(phba->pcidev->irq, phba); | |
2594 | if (phba->intr_type == MSI) | |
2595 | pci_disable_msi(phba->pcidev); | |
2596 | } | |
dea3101e JB |
2597 | |
2598 | pci_set_drvdata(pdev, NULL); | |
858c9f6c | 2599 | scsi_host_put(shost); |
2e0fef85 JS |
2600 | |
2601 | /* | |
2602 | * Call scsi_free before mem_free since scsi bufs are released to their | |
2603 | * corresponding pools here. | |
2604 | */ | |
2605 | lpfc_scsi_free(phba); | |
2606 | lpfc_mem_free(phba); | |
2607 | ||
34b02dcd JS |
2608 | dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), |
2609 | phba->hbqslimp.virt, phba->hbqslimp.phys); | |
ed957684 | 2610 | |
2e0fef85 JS |
2611 | /* Free resources associated with SLI2 interface */ |
2612 | dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, | |
34b02dcd | 2613 | phba->slim2p.virt, phba->slim2p.phys); |
2e0fef85 JS |
2614 | |
2615 | /* unmap adapter SLIM and Control Registers */ | |
2616 | iounmap(phba->ctrl_regs_memmap_p); | |
2617 | iounmap(phba->slim_memmap_p); | |
2618 | ||
2619 | idr_remove(&lpfc_hba_index, phba->brd_no); | |
2620 | ||
2621 | kfree(phba); | |
2622 | ||
8a4df120 | 2623 | pci_release_selected_regions(pdev, bars); |
2e0fef85 | 2624 | pci_disable_device(pdev); |
dea3101e JB |
2625 | } |
2626 | ||
8d63f375 | 2627 | /** |
e59058c4 JS |
2628 | * lpfc_io_error_detected: Driver method for handling PCI I/O error detected. |
2629 | * @pdev: pointer to PCI device. | |
2630 | * @state: the current PCI connection state. | |
8d63f375 | 2631 | * |
e59058c4 JS |
2632 | * This routine is registered to the PCI subsystem for error handling. This |
2633 | * function is called by the PCI subsystem after a PCI bus error affecting | |
2634 | * this device has been detected. When this function is invoked, it will | |
2635 | * need to stop all the I/Os and interrupt(s) to the device. Once that is | |
2636 | * done, it will return PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to | |
2637 | * perform proper recovery as desired. | |
2638 | * | |
2639 | * Return codes | |
2640 | * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery | |
2641 | * PCI_ERS_RESULT_DISCONNECT - device could not be recovered | |
2642 | **/ | |
8d63f375 LV |
2643 | static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev, |
2644 | pci_channel_state_t state) | |
2645 | { | |
51ef4c26 JS |
2646 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
2647 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
8d63f375 LV |
2648 | struct lpfc_sli *psli = &phba->sli; |
2649 | struct lpfc_sli_ring *pring; | |
2650 | ||
5daa49ef | 2651 | if (state == pci_channel_io_perm_failure) |
8d63f375 | 2652 | return PCI_ERS_RESULT_DISCONNECT; |
5daa49ef | 2653 | |
8d63f375 LV |
2654 | pci_disable_device(pdev); |
2655 | /* | |
2656 | * There may be I/Os dropped by the firmware. | |
2657 | * Error iocb (I/O) on txcmplq and let the SCSI layer | |
2658 | * retry it after re-establishing link. | |
2659 | */ | |
2660 | pring = &psli->ring[psli->fcp_ring]; | |
2661 | lpfc_sli_abort_iocb_ring(phba, pring); | |
2662 | ||
db2378e0 JS |
2663 | if (phba->intr_type == MSIX) |
2664 | lpfc_disable_msix(phba); | |
2665 | else { | |
2666 | free_irq(phba->pcidev->irq, phba); | |
2667 | if (phba->intr_type == MSI) | |
2668 | pci_disable_msi(phba->pcidev); | |
2669 | } | |
51ef4c26 | 2670 | |
8d63f375 LV |
2671 | /* Request a slot reset. */ |
2672 | return PCI_ERS_RESULT_NEED_RESET; | |
2673 | } | |
2674 | ||
2675 | /** | |
e59058c4 JS |
2676 | * lpfc_io_slot_reset: Restart a PCI device from scratch. |
2677 | * @pdev: pointer to PCI device. | |
2678 | * | |
2679 | * This routine is registered to the PCI subsystem for error handling. This is | |
2680 | * called after PCI bus has been reset to restart the PCI card from scratch, | |
2681 | * as if from a cold-boot. During the PCI subsystem error recovery, after the | |
2682 | * driver returns PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform | |
2683 | * proper error recovery and then call this routine before calling the .resume | |
2684 | * method to recover the device. This function will initialize the HBA device, | |
2685 | * enable the interrupt, but it will just put the HBA to offline state without | |
2686 | * passing any I/O traffic. | |
8d63f375 | 2687 | * |
e59058c4 JS |
2688 | * Return codes |
2689 | * PCI_ERS_RESULT_RECOVERED - the device has been recovered | |
2690 | * PCI_ERS_RESULT_DISCONNECT - device could not be recovered | |
8d63f375 LV |
2691 | */ |
2692 | static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev) | |
2693 | { | |
51ef4c26 JS |
2694 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
2695 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
8d63f375 | 2696 | struct lpfc_sli *psli = &phba->sli; |
9b379605 | 2697 | int error, retval; |
8d63f375 LV |
2698 | |
2699 | dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); | |
09483916 | 2700 | if (pci_enable_device_mem(pdev)) { |
8d63f375 LV |
2701 | printk(KERN_ERR "lpfc: Cannot re-enable " |
2702 | "PCI device after reset.\n"); | |
2703 | return PCI_ERS_RESULT_DISCONNECT; | |
2704 | } | |
2705 | ||
2706 | pci_set_master(pdev); | |
2707 | ||
92d7f7b0 | 2708 | spin_lock_irq(&phba->hbalock); |
8d63f375 | 2709 | psli->sli_flag &= ~LPFC_SLI2_ACTIVE; |
92d7f7b0 | 2710 | spin_unlock_irq(&phba->hbalock); |
8d63f375 | 2711 | |
9b379605 JS |
2712 | /* Enable configured interrupt method */ |
2713 | phba->intr_type = NONE; | |
2714 | if (phba->cfg_use_msi == 2) { | |
2715 | error = lpfc_enable_msix(phba); | |
2716 | if (!error) | |
2717 | phba->intr_type = MSIX; | |
2718 | } | |
2719 | ||
2720 | /* Fallback to MSI if MSI-X initialization failed */ | |
2721 | if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) { | |
2722 | retval = pci_enable_msi(phba->pcidev); | |
2723 | if (!retval) | |
2724 | phba->intr_type = MSI; | |
2725 | else | |
2726 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
2727 | "0470 Enable MSI failed, continuing " | |
2728 | "with IRQ\n"); | |
2729 | } | |
2730 | ||
2731 | /* MSI-X is the only case the doesn't need to call request_irq */ | |
2732 | if (phba->intr_type != MSIX) { | |
2733 | retval = request_irq(phba->pcidev->irq, lpfc_intr_handler, | |
2734 | IRQF_SHARED, LPFC_DRIVER_NAME, phba); | |
2735 | if (retval) { | |
2736 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
2737 | "0471 Enable interrupt handler " | |
2738 | "failed\n"); | |
2739 | } else if (phba->intr_type != MSI) | |
2740 | phba->intr_type = INTx; | |
2741 | } | |
8d63f375 LV |
2742 | |
2743 | /* Take device offline; this will perform cleanup */ | |
2744 | lpfc_offline(phba); | |
2745 | lpfc_sli_brdrestart(phba); | |
2746 | ||
2747 | return PCI_ERS_RESULT_RECOVERED; | |
2748 | } | |
2749 | ||
2750 | /** | |
e59058c4 JS |
2751 | * lpfc_io_resume: Resume PCI I/O operation. |
2752 | * @pdev: pointer to PCI device | |
8d63f375 | 2753 | * |
e59058c4 JS |
2754 | * This routine is registered to the PCI subsystem for error handling. It is |
2755 | * called when kernel error recovery tells the lpfc driver that it is ok to | |
2756 | * resume normal PCI operation after PCI bus error recovery. After this call, | |
2757 | * traffic can start to flow from this device again. | |
8d63f375 LV |
2758 | */ |
2759 | static void lpfc_io_resume(struct pci_dev *pdev) | |
2760 | { | |
51ef4c26 JS |
2761 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
2762 | struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; | |
8d63f375 | 2763 | |
58da1ffb | 2764 | lpfc_online(phba); |
8d63f375 LV |
2765 | } |
2766 | ||
dea3101e JB |
2767 | static struct pci_device_id lpfc_id_table[] = { |
2768 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, | |
2769 | PCI_ANY_ID, PCI_ANY_ID, }, | |
06325e74 JSEC |
2770 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, |
2771 | PCI_ANY_ID, PCI_ANY_ID, }, | |
dea3101e JB |
2772 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, |
2773 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2774 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, | |
2775 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2776 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, | |
2777 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2778 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, | |
2779 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2780 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, | |
2781 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2782 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, | |
2783 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2784 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, | |
2785 | PCI_ANY_ID, PCI_ANY_ID, }, | |
e4adb204 JSEC |
2786 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, |
2787 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2788 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, | |
2789 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2790 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, | |
2791 | PCI_ANY_ID, PCI_ANY_ID, }, | |
dea3101e JB |
2792 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, |
2793 | PCI_ANY_ID, PCI_ANY_ID, }, | |
e4adb204 JSEC |
2794 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, |
2795 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2796 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, | |
2797 | PCI_ANY_ID, PCI_ANY_ID, }, | |
dea3101e JB |
2798 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, |
2799 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2800 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, | |
2801 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2802 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, | |
2803 | PCI_ANY_ID, PCI_ANY_ID, }, | |
e4adb204 JSEC |
2804 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, |
2805 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2806 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, | |
2807 | PCI_ANY_ID, PCI_ANY_ID, }, | |
dea3101e JB |
2808 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, |
2809 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2810 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, | |
2811 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2812 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, | |
2813 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2814 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, | |
2815 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2816 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, | |
2817 | PCI_ANY_ID, PCI_ANY_ID, }, | |
e4adb204 JSEC |
2818 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, |
2819 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2820 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, | |
2821 | PCI_ANY_ID, PCI_ANY_ID, }, | |
b87eab38 JS |
2822 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, |
2823 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2824 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, | |
2825 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2826 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, | |
2827 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2828 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, | |
2829 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2830 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, | |
2831 | PCI_ANY_ID, PCI_ANY_ID, }, | |
2832 | {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, | |
2833 | PCI_ANY_ID, PCI_ANY_ID, }, | |
dea3101e JB |
2834 | { 0 } |
2835 | }; | |
2836 | ||
2837 | MODULE_DEVICE_TABLE(pci, lpfc_id_table); | |
2838 | ||
8d63f375 LV |
2839 | static struct pci_error_handlers lpfc_err_handler = { |
2840 | .error_detected = lpfc_io_error_detected, | |
2841 | .slot_reset = lpfc_io_slot_reset, | |
2842 | .resume = lpfc_io_resume, | |
2843 | }; | |
2844 | ||
dea3101e JB |
2845 | static struct pci_driver lpfc_driver = { |
2846 | .name = LPFC_DRIVER_NAME, | |
2847 | .id_table = lpfc_id_table, | |
2848 | .probe = lpfc_pci_probe_one, | |
2849 | .remove = __devexit_p(lpfc_pci_remove_one), | |
2e0fef85 | 2850 | .err_handler = &lpfc_err_handler, |
dea3101e JB |
2851 | }; |
2852 | ||
e59058c4 JS |
2853 | /** |
2854 | * lpfc_init: lpfc module initialization routine. | |
2855 | * | |
2856 | * This routine is to be invoked when the lpfc module is loaded into the | |
2857 | * kernel. The special kernel macro module_init() is used to indicate the | |
2858 | * role of this routine to the kernel as lpfc module entry point. | |
2859 | * | |
2860 | * Return codes | |
2861 | * 0 - successful | |
2862 | * -ENOMEM - FC attach transport failed | |
2863 | * all others - failed | |
2864 | */ | |
dea3101e JB |
2865 | static int __init |
2866 | lpfc_init(void) | |
2867 | { | |
2868 | int error = 0; | |
2869 | ||
2870 | printk(LPFC_MODULE_DESC "\n"); | |
c44ce173 | 2871 | printk(LPFC_COPYRIGHT "\n"); |
dea3101e | 2872 | |
7ee5d43e JS |
2873 | if (lpfc_enable_npiv) { |
2874 | lpfc_transport_functions.vport_create = lpfc_vport_create; | |
2875 | lpfc_transport_functions.vport_delete = lpfc_vport_delete; | |
2876 | } | |
dea3101e JB |
2877 | lpfc_transport_template = |
2878 | fc_attach_transport(&lpfc_transport_functions); | |
7ee5d43e | 2879 | if (lpfc_transport_template == NULL) |
dea3101e | 2880 | return -ENOMEM; |
7ee5d43e | 2881 | if (lpfc_enable_npiv) { |
7ee5d43e | 2882 | lpfc_vport_transport_template = |
98c9ea5c JS |
2883 | fc_attach_transport(&lpfc_vport_transport_functions); |
2884 | if (lpfc_vport_transport_template == NULL) { | |
2885 | fc_release_transport(lpfc_transport_template); | |
7ee5d43e | 2886 | return -ENOMEM; |
98c9ea5c | 2887 | } |
7ee5d43e | 2888 | } |
dea3101e | 2889 | error = pci_register_driver(&lpfc_driver); |
92d7f7b0 | 2890 | if (error) { |
dea3101e | 2891 | fc_release_transport(lpfc_transport_template); |
92d7f7b0 JS |
2892 | fc_release_transport(lpfc_vport_transport_template); |
2893 | } | |
dea3101e JB |
2894 | |
2895 | return error; | |
2896 | } | |
2897 | ||
e59058c4 JS |
2898 | /** |
2899 | * lpfc_exit: lpfc module removal routine. | |
2900 | * | |
2901 | * This routine is invoked when the lpfc module is removed from the kernel. | |
2902 | * The special kernel macro module_exit() is used to indicate the role of | |
2903 | * this routine to the kernel as lpfc module exit point. | |
2904 | */ | |
dea3101e JB |
2905 | static void __exit |
2906 | lpfc_exit(void) | |
2907 | { | |
2908 | pci_unregister_driver(&lpfc_driver); | |
2909 | fc_release_transport(lpfc_transport_template); | |
7ee5d43e JS |
2910 | if (lpfc_enable_npiv) |
2911 | fc_release_transport(lpfc_vport_transport_template); | |
dea3101e JB |
2912 | } |
2913 | ||
2914 | module_init(lpfc_init); | |
2915 | module_exit(lpfc_exit); | |
2916 | MODULE_LICENSE("GPL"); | |
2917 | MODULE_DESCRIPTION(LPFC_MODULE_DESC); | |
2918 | MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); | |
2919 | MODULE_VERSION("0:" LPFC_DRIVER_VERSION); |