1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2014 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
8 * *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
21
22 #include <linux/blkdev.h>
23 #include <linux/delay.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/idr.h>
26 #include <linux/interrupt.h>
27 #include <linux/module.h>
28 #include <linux/kthread.h>
29 #include <linux/pci.h>
30 #include <linux/spinlock.h>
31 #include <linux/ctype.h>
32 #include <linux/aer.h>
33 #include <linux/slab.h>
34 #include <linux/firmware.h>
35 #include <linux/miscdevice.h>
36 #include <linux/percpu.h>
37
38 #include <scsi/scsi.h>
39 #include <scsi/scsi_device.h>
40 #include <scsi/scsi_host.h>
41 #include <scsi/scsi_transport_fc.h>
42
43 #include "lpfc_hw4.h"
44 #include "lpfc_hw.h"
45 #include "lpfc_sli.h"
46 #include "lpfc_sli4.h"
47 #include "lpfc_nl.h"
48 #include "lpfc_disc.h"
49 #include "lpfc_scsi.h"
50 #include "lpfc.h"
51 #include "lpfc_logmsg.h"
52 #include "lpfc_crtn.h"
53 #include "lpfc_vport.h"
54 #include "lpfc_version.h"
55
56 char *_dump_buf_data;
57 unsigned long _dump_buf_data_order;
58 char *_dump_buf_dif;
59 unsigned long _dump_buf_dif_order;
60 spinlock_t _dump_buf_lock;
61
62 /* Used when mapping IRQ vectors in a driver centric manner */
63 uint16_t *lpfc_used_cpu;
64 uint32_t lpfc_present_cpu;
65
66 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
67 static int lpfc_post_rcv_buf(struct lpfc_hba *);
68 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
69 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
70 static int lpfc_setup_endian_order(struct lpfc_hba *);
71 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
72 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
73 static void lpfc_init_sgl_list(struct lpfc_hba *);
74 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
75 static void lpfc_free_active_sgl(struct lpfc_hba *);
76 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
77 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
78 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
79 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
80 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
81 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
82 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
83 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
84
85 static struct scsi_transport_template *lpfc_transport_template = NULL;
86 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
87 static DEFINE_IDR(lpfc_hba_index);
88
89 /**
90 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
91 * @phba: pointer to lpfc hba data structure.
92 *
93 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
94 * mailbox command. It retrieves the revision information from the HBA and
95 * collects the Vital Product Data (VPD) about the HBA for preparing the
96 * configuration of the HBA.
97 *
98 * Return codes:
99 * 0 - success.
100 * -ERESTART - requests the SLI layer to reset the HBA and try again.
101 * Any other value - indicates an error.
102 **/
103 int
lpfc_config_port_prep(struct lpfc_hba * phba)104 lpfc_config_port_prep(struct lpfc_hba *phba)
105 {
106 lpfc_vpd_t *vp = &phba->vpd;
107 int i = 0, rc;
108 LPFC_MBOXQ_t *pmb;
109 MAILBOX_t *mb;
110 char *lpfc_vpd_data = NULL;
111 uint16_t offset = 0;
112 static char licensed[56] =
113 "key unlock for use with gnu public licensed code only\0";
114 static int init_key = 1;
115
116 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
117 if (!pmb) {
118 phba->link_state = LPFC_HBA_ERROR;
119 return -ENOMEM;
120 }
121
122 mb = &pmb->u.mb;
123 phba->link_state = LPFC_INIT_MBX_CMDS;
124
125 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
126 if (init_key) {
127 uint32_t *ptext = (uint32_t *) licensed;
128
129 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
130 *ptext = cpu_to_be32(*ptext);
131 init_key = 0;
132 }
133
134 lpfc_read_nv(phba, pmb);
135 memset((char*)mb->un.varRDnvp.rsvd3, 0,
136 sizeof (mb->un.varRDnvp.rsvd3));
137 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
138 sizeof (licensed));
139
140 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
141
142 if (rc != MBX_SUCCESS) {
143 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
144 "0324 Config Port initialization "
145 "error, mbxCmd x%x READ_NVPARM, "
146 "mbxStatus x%x\n",
147 mb->mbxCommand, mb->mbxStatus);
148 mempool_free(pmb, phba->mbox_mem_pool);
149 return -ERESTART;
150 }
151 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
152 sizeof(phba->wwnn));
153 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
154 sizeof(phba->wwpn));
155 }
156
157 phba->sli3_options = 0x0;
158
159 /* Setup and issue mailbox READ REV command */
160 lpfc_read_rev(phba, pmb);
161 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
162 if (rc != MBX_SUCCESS) {
163 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
164 "0439 Adapter failed to init, mbxCmd x%x "
165 "READ_REV, mbxStatus x%x\n",
166 mb->mbxCommand, mb->mbxStatus);
167 mempool_free( pmb, phba->mbox_mem_pool);
168 return -ERESTART;
169 }
170
171
172 /*
173 * The value of rr must be 1 since the driver set the cv field to 1.
174 * This setting requires the FW to set all revision fields.
175 */
176 if (mb->un.varRdRev.rr == 0) {
177 vp->rev.rBit = 0;
178 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
179 "0440 Adapter failed to init, READ_REV has "
180 "missing revision information.\n");
181 mempool_free(pmb, phba->mbox_mem_pool);
182 return -ERESTART;
183 }
184
185 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
186 mempool_free(pmb, phba->mbox_mem_pool);
187 return -EINVAL;
188 }
189
190 /* Save information as VPD data */
191 vp->rev.rBit = 1;
192 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
193 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
194 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
195 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
196 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
197 vp->rev.biuRev = mb->un.varRdRev.biuRev;
198 vp->rev.smRev = mb->un.varRdRev.smRev;
199 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
200 vp->rev.endecRev = mb->un.varRdRev.endecRev;
201 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
202 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
203 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
204 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
205 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
206 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
207
208 /* If the sli feature level is less then 9, we must
209 * tear down all RPIs and VPIs on link down if NPIV
210 * is enabled.
211 */
212 if (vp->rev.feaLevelHigh < 9)
213 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
214
215 if (lpfc_is_LC_HBA(phba->pcidev->device))
216 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
217 sizeof (phba->RandomData));
218
219 /* Get adapter VPD information */
220 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
221 if (!lpfc_vpd_data)
222 goto out_free_mbox;
223 do {
224 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
225 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
226
227 if (rc != MBX_SUCCESS) {
228 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
229 "0441 VPD not present on adapter, "
230 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
231 mb->mbxCommand, mb->mbxStatus);
232 mb->un.varDmp.word_cnt = 0;
233 }
234 /* dump mem may return a zero when finished or we got a
235 * mailbox error, either way we are done.
236 */
237 if (mb->un.varDmp.word_cnt == 0)
238 break;
239 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
240 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
241 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
242 lpfc_vpd_data + offset,
243 mb->un.varDmp.word_cnt);
244 offset += mb->un.varDmp.word_cnt;
245 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
246 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
247
248 kfree(lpfc_vpd_data);
249 out_free_mbox:
250 mempool_free(pmb, phba->mbox_mem_pool);
251 return 0;
252 }
253
254 /**
255 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
256 * @phba: pointer to lpfc hba data structure.
257 * @pmboxq: pointer to the driver internal queue element for mailbox command.
258 *
259 * This is the completion handler for driver's configuring asynchronous event
260 * mailbox command to the device. If the mailbox command returns successfully,
261 * it will set internal async event support flag to 1; otherwise, it will
262 * set internal async event support flag to 0.
263 **/
264 static void
lpfc_config_async_cmpl(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmboxq)265 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
266 {
267 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
268 phba->temp_sensor_support = 1;
269 else
270 phba->temp_sensor_support = 0;
271 mempool_free(pmboxq, phba->mbox_mem_pool);
272 return;
273 }
274
275 /**
276 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
277 * @phba: pointer to lpfc hba data structure.
278 * @pmboxq: pointer to the driver internal queue element for mailbox command.
279 *
280 * This is the completion handler for dump mailbox command for getting
281 * wake up parameters. When this command complete, the response contain
282 * Option rom version of the HBA. This function translate the version number
283 * into a human readable string and store it in OptionROMVersion.
284 **/
285 static void
lpfc_dump_wakeup_param_cmpl(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmboxq)286 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
287 {
288 struct prog_id *prg;
289 uint32_t prog_id_word;
290 char dist = ' ';
291 /* character array used for decoding dist type. */
292 char dist_char[] = "nabx";
293
294 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
295 mempool_free(pmboxq, phba->mbox_mem_pool);
296 return;
297 }
298
299 prg = (struct prog_id *) &prog_id_word;
300
301 /* word 7 contain option rom version */
302 prog_id_word = pmboxq->u.mb.un.varWords[7];
303
304 /* Decode the Option rom version word to a readable string */
305 if (prg->dist < 4)
306 dist = dist_char[prg->dist];
307
308 if ((prg->dist == 3) && (prg->num == 0))
309 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
310 prg->ver, prg->rev, prg->lev);
311 else
312 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
313 prg->ver, prg->rev, prg->lev,
314 dist, prg->num);
315 mempool_free(pmboxq, phba->mbox_mem_pool);
316 return;
317 }
318
319 /**
320 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
321 * cfg_soft_wwnn, cfg_soft_wwpn
322 * @vport: pointer to lpfc vport data structure.
323 *
324 *
325 * Return codes
326 * None.
327 **/
328 void
lpfc_update_vport_wwn(struct lpfc_vport * vport)329 lpfc_update_vport_wwn(struct lpfc_vport *vport)
330 {
331 /* If the soft name exists then update it using the service params */
332 if (vport->phba->cfg_soft_wwnn)
333 u64_to_wwn(vport->phba->cfg_soft_wwnn,
334 vport->fc_sparam.nodeName.u.wwn);
335 if (vport->phba->cfg_soft_wwpn)
336 u64_to_wwn(vport->phba->cfg_soft_wwpn,
337 vport->fc_sparam.portName.u.wwn);
338
339 /*
340 * If the name is empty or there exists a soft name
341 * then copy the service params name, otherwise use the fc name
342 */
343 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
344 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
345 sizeof(struct lpfc_name));
346 else
347 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
348 sizeof(struct lpfc_name));
349
350 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
351 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
352 sizeof(struct lpfc_name));
353 else
354 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
355 sizeof(struct lpfc_name));
356 }
357
358 /**
359 * lpfc_config_port_post - Perform lpfc initialization after config port
360 * @phba: pointer to lpfc hba data structure.
361 *
362 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
363 * command call. It performs all internal resource and state setups on the
364 * port: post IOCB buffers, enable appropriate host interrupt attentions,
365 * ELS ring timers, etc.
366 *
367 * Return codes
368 * 0 - success.
369 * Any other value - error.
370 **/
371 int
lpfc_config_port_post(struct lpfc_hba * phba)372 lpfc_config_port_post(struct lpfc_hba *phba)
373 {
374 struct lpfc_vport *vport = phba->pport;
375 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
376 LPFC_MBOXQ_t *pmb;
377 MAILBOX_t *mb;
378 struct lpfc_dmabuf *mp;
379 struct lpfc_sli *psli = &phba->sli;
380 uint32_t status, timeout;
381 int i, j;
382 int rc;
383
384 spin_lock_irq(&phba->hbalock);
385 /*
386 * If the Config port completed correctly the HBA is not
387 * over heated any more.
388 */
389 if (phba->over_temp_state == HBA_OVER_TEMP)
390 phba->over_temp_state = HBA_NORMAL_TEMP;
391 spin_unlock_irq(&phba->hbalock);
392
393 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
394 if (!pmb) {
395 phba->link_state = LPFC_HBA_ERROR;
396 return -ENOMEM;
397 }
398 mb = &pmb->u.mb;
399
400 /* Get login parameters for NID. */
401 rc = lpfc_read_sparam(phba, pmb, 0);
402 if (rc) {
403 mempool_free(pmb, phba->mbox_mem_pool);
404 return -ENOMEM;
405 }
406
407 pmb->vport = vport;
408 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
410 "0448 Adapter failed init, mbxCmd x%x "
411 "READ_SPARM mbxStatus x%x\n",
412 mb->mbxCommand, mb->mbxStatus);
413 phba->link_state = LPFC_HBA_ERROR;
414 mp = (struct lpfc_dmabuf *) pmb->context1;
415 mempool_free(pmb, phba->mbox_mem_pool);
416 lpfc_mbuf_free(phba, mp->virt, mp->phys);
417 kfree(mp);
418 return -EIO;
419 }
420
421 mp = (struct lpfc_dmabuf *) pmb->context1;
422
423 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
424 lpfc_mbuf_free(phba, mp->virt, mp->phys);
425 kfree(mp);
426 pmb->context1 = NULL;
427 lpfc_update_vport_wwn(vport);
428
429 /* Update the fc_host data structures with new wwn. */
430 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
431 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
432 fc_host_max_npiv_vports(shost) = phba->max_vpi;
433
434 /* If no serial number in VPD data, use low 6 bytes of WWNN */
435 /* This should be consolidated into parse_vpd ? - mr */
436 if (phba->SerialNumber[0] == 0) {
437 uint8_t *outptr;
438
439 outptr = &vport->fc_nodename.u.s.IEEE[0];
440 for (i = 0; i < 12; i++) {
441 status = *outptr++;
442 j = ((status & 0xf0) >> 4);
443 if (j <= 9)
444 phba->SerialNumber[i] =
445 (char)((uint8_t) 0x30 + (uint8_t) j);
446 else
447 phba->SerialNumber[i] =
448 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
449 i++;
450 j = (status & 0xf);
451 if (j <= 9)
452 phba->SerialNumber[i] =
453 (char)((uint8_t) 0x30 + (uint8_t) j);
454 else
455 phba->SerialNumber[i] =
456 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
457 }
458 }
459
460 lpfc_read_config(phba, pmb);
461 pmb->vport = vport;
462 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
464 "0453 Adapter failed to init, mbxCmd x%x "
465 "READ_CONFIG, mbxStatus x%x\n",
466 mb->mbxCommand, mb->mbxStatus);
467 phba->link_state = LPFC_HBA_ERROR;
468 mempool_free( pmb, phba->mbox_mem_pool);
469 return -EIO;
470 }
471
472 /* Check if the port is disabled */
473 lpfc_sli_read_link_ste(phba);
474
475 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
476 i = (mb->un.varRdConfig.max_xri + 1);
477 if (phba->cfg_hba_queue_depth > i) {
478 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
479 "3359 HBA queue depth changed from %d to %d\n",
480 phba->cfg_hba_queue_depth, i);
481 phba->cfg_hba_queue_depth = i;
482 }
483
484 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
485 i = (mb->un.varRdConfig.max_xri >> 3);
486 if (phba->pport->cfg_lun_queue_depth > i) {
487 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
488 "3360 LUN queue depth changed from %d to %d\n",
489 phba->pport->cfg_lun_queue_depth, i);
490 phba->pport->cfg_lun_queue_depth = i;
491 }
492
493 phba->lmt = mb->un.varRdConfig.lmt;
494
495 /* Get the default values for Model Name and Description */
496 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
497
498 phba->link_state = LPFC_LINK_DOWN;
499
500 /* Only process IOCBs on ELS ring till hba_state is READY */
501 if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
502 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
503 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
504 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
505 if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
506 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
507
508 /* Post receive buffers for desired rings */
509 if (phba->sli_rev != 3)
510 lpfc_post_rcv_buf(phba);
511
512 /*
513 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
514 */
515 if (phba->intr_type == MSIX) {
516 rc = lpfc_config_msi(phba, pmb);
517 if (rc) {
518 mempool_free(pmb, phba->mbox_mem_pool);
519 return -EIO;
520 }
521 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
522 if (rc != MBX_SUCCESS) {
523 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
524 "0352 Config MSI mailbox command "
525 "failed, mbxCmd x%x, mbxStatus x%x\n",
526 pmb->u.mb.mbxCommand,
527 pmb->u.mb.mbxStatus);
528 mempool_free(pmb, phba->mbox_mem_pool);
529 return -EIO;
530 }
531 }
532
533 spin_lock_irq(&phba->hbalock);
534 /* Initialize ERATT handling flag */
535 phba->hba_flag &= ~HBA_ERATT_HANDLED;
536
537 /* Enable appropriate host interrupts */
538 if (lpfc_readl(phba->HCregaddr, &status)) {
539 spin_unlock_irq(&phba->hbalock);
540 return -EIO;
541 }
542 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
543 if (psli->num_rings > 0)
544 status |= HC_R0INT_ENA;
545 if (psli->num_rings > 1)
546 status |= HC_R1INT_ENA;
547 if (psli->num_rings > 2)
548 status |= HC_R2INT_ENA;
549 if (psli->num_rings > 3)
550 status |= HC_R3INT_ENA;
551
552 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
553 (phba->cfg_poll & DISABLE_FCP_RING_INT))
554 status &= ~(HC_R0INT_ENA);
555
556 writel(status, phba->HCregaddr);
557 readl(phba->HCregaddr); /* flush */
558 spin_unlock_irq(&phba->hbalock);
559
560 /* Set up ring-0 (ELS) timer */
561 timeout = phba->fc_ratov * 2;
562 mod_timer(&vport->els_tmofunc,
563 jiffies + msecs_to_jiffies(1000 * timeout));
564 /* Set up heart beat (HB) timer */
565 mod_timer(&phba->hb_tmofunc,
566 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
567 phba->hb_outstanding = 0;
568 phba->last_completion_time = jiffies;
569 /* Set up error attention (ERATT) polling timer */
570 mod_timer(&phba->eratt_poll,
571 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
572
573 if (phba->hba_flag & LINK_DISABLED) {
574 lpfc_printf_log(phba,
575 KERN_ERR, LOG_INIT,
576 "2598 Adapter Link is disabled.\n");
577 lpfc_down_link(phba, pmb);
578 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
579 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
580 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
581 lpfc_printf_log(phba,
582 KERN_ERR, LOG_INIT,
583 "2599 Adapter failed to issue DOWN_LINK"
584 " mbox command rc 0x%x\n", rc);
585
586 mempool_free(pmb, phba->mbox_mem_pool);
587 return -EIO;
588 }
589 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
590 mempool_free(pmb, phba->mbox_mem_pool);
591 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
592 if (rc)
593 return rc;
594 }
595 /* MBOX buffer will be freed in mbox compl */
596 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
597 if (!pmb) {
598 phba->link_state = LPFC_HBA_ERROR;
599 return -ENOMEM;
600 }
601
602 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
603 pmb->mbox_cmpl = lpfc_config_async_cmpl;
604 pmb->vport = phba->pport;
605 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
606
607 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
608 lpfc_printf_log(phba,
609 KERN_ERR,
610 LOG_INIT,
611 "0456 Adapter failed to issue "
612 "ASYNCEVT_ENABLE mbox status x%x\n",
613 rc);
614 mempool_free(pmb, phba->mbox_mem_pool);
615 }
616
617 /* Get Option rom version */
618 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
619 if (!pmb) {
620 phba->link_state = LPFC_HBA_ERROR;
621 return -ENOMEM;
622 }
623
624 lpfc_dump_wakeup_param(phba, pmb);
625 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
626 pmb->vport = phba->pport;
627 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
628
629 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
631 "to get Option ROM version status x%x\n", rc);
632 mempool_free(pmb, phba->mbox_mem_pool);
633 }
634
635 return 0;
636 }
637
638 /**
639 * lpfc_hba_init_link - Initialize the FC link
640 * @phba: pointer to lpfc hba data structure.
641 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
642 *
643 * This routine will issue the INIT_LINK mailbox command call.
644 * It is available to other drivers through the lpfc_hba data
645 * structure for use as a delayed link up mechanism with the
646 * module parameter lpfc_suppress_link_up.
647 *
648 * Return code
649 * 0 - success
650 * Any other value - error
651 **/
652 static int
lpfc_hba_init_link(struct lpfc_hba * phba,uint32_t flag)653 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
654 {
655 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
656 }
657
658 /**
659 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
660 * @phba: pointer to lpfc hba data structure.
661 * @fc_topology: desired fc topology.
662 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
663 *
664 * This routine will issue the INIT_LINK mailbox command call.
665 * It is available to other drivers through the lpfc_hba data
666 * structure for use as a delayed link up mechanism with the
667 * module parameter lpfc_suppress_link_up.
668 *
669 * Return code
670 * 0 - success
671 * Any other value - error
672 **/
673 int
lpfc_hba_init_link_fc_topology(struct lpfc_hba * phba,uint32_t fc_topology,uint32_t flag)674 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
675 uint32_t flag)
676 {
677 struct lpfc_vport *vport = phba->pport;
678 LPFC_MBOXQ_t *pmb;
679 MAILBOX_t *mb;
680 int rc;
681
682 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
683 if (!pmb) {
684 phba->link_state = LPFC_HBA_ERROR;
685 return -ENOMEM;
686 }
687 mb = &pmb->u.mb;
688 pmb->vport = vport;
689
690 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
691 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
692 !(phba->lmt & LMT_1Gb)) ||
693 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
694 !(phba->lmt & LMT_2Gb)) ||
695 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
696 !(phba->lmt & LMT_4Gb)) ||
697 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
698 !(phba->lmt & LMT_8Gb)) ||
699 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
700 !(phba->lmt & LMT_10Gb)) ||
701 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
702 !(phba->lmt & LMT_16Gb))) {
703 /* Reset link speed to auto */
704 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
705 "1302 Invalid speed for this board:%d "
706 "Reset link speed to auto.\n",
707 phba->cfg_link_speed);
708 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
709 }
710 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
711 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
712 if (phba->sli_rev < LPFC_SLI_REV4)
713 lpfc_set_loopback_flag(phba);
714 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
715 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
717 "0498 Adapter failed to init, mbxCmd x%x "
718 "INIT_LINK, mbxStatus x%x\n",
719 mb->mbxCommand, mb->mbxStatus);
720 if (phba->sli_rev <= LPFC_SLI_REV3) {
721 /* Clear all interrupt enable conditions */
722 writel(0, phba->HCregaddr);
723 readl(phba->HCregaddr); /* flush */
724 /* Clear all pending interrupts */
725 writel(0xffffffff, phba->HAregaddr);
726 readl(phba->HAregaddr); /* flush */
727 }
728 phba->link_state = LPFC_HBA_ERROR;
729 if (rc != MBX_BUSY || flag == MBX_POLL)
730 mempool_free(pmb, phba->mbox_mem_pool);
731 return -EIO;
732 }
733 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
734 if (flag == MBX_POLL)
735 mempool_free(pmb, phba->mbox_mem_pool);
736
737 return 0;
738 }
739
740 /**
741 * lpfc_hba_down_link - this routine downs the FC link
742 * @phba: pointer to lpfc hba data structure.
743 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
744 *
745 * This routine will issue the DOWN_LINK mailbox command call.
746 * It is available to other drivers through the lpfc_hba data
747 * structure for use to stop the link.
748 *
749 * Return code
750 * 0 - success
751 * Any other value - error
752 **/
753 static int
lpfc_hba_down_link(struct lpfc_hba * phba,uint32_t flag)754 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
755 {
756 LPFC_MBOXQ_t *pmb;
757 int rc;
758
759 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
760 if (!pmb) {
761 phba->link_state = LPFC_HBA_ERROR;
762 return -ENOMEM;
763 }
764
765 lpfc_printf_log(phba,
766 KERN_ERR, LOG_INIT,
767 "0491 Adapter Link is disabled.\n");
768 lpfc_down_link(phba, pmb);
769 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
770 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
771 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
772 lpfc_printf_log(phba,
773 KERN_ERR, LOG_INIT,
774 "2522 Adapter failed to issue DOWN_LINK"
775 " mbox command rc 0x%x\n", rc);
776
777 mempool_free(pmb, phba->mbox_mem_pool);
778 return -EIO;
779 }
780 if (flag == MBX_POLL)
781 mempool_free(pmb, phba->mbox_mem_pool);
782
783 return 0;
784 }
785
786 /**
787 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
788 * @phba: pointer to lpfc HBA data structure.
789 *
790 * This routine will do LPFC uninitialization before the HBA is reset when
791 * bringing down the SLI Layer.
792 *
793 * Return codes
794 * 0 - success.
795 * Any other value - error.
796 **/
797 int
lpfc_hba_down_prep(struct lpfc_hba * phba)798 lpfc_hba_down_prep(struct lpfc_hba *phba)
799 {
800 struct lpfc_vport **vports;
801 int i;
802
803 if (phba->sli_rev <= LPFC_SLI_REV3) {
804 /* Disable interrupts */
805 writel(0, phba->HCregaddr);
806 readl(phba->HCregaddr); /* flush */
807 }
808
809 if (phba->pport->load_flag & FC_UNLOADING)
810 lpfc_cleanup_discovery_resources(phba->pport);
811 else {
812 vports = lpfc_create_vport_work_array(phba);
813 if (vports != NULL)
814 for (i = 0; i <= phba->max_vports &&
815 vports[i] != NULL; i++)
816 lpfc_cleanup_discovery_resources(vports[i]);
817 lpfc_destroy_vport_work_array(phba, vports);
818 }
819 return 0;
820 }
821
822 /**
823 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
824 * rspiocb which got deferred
825 *
826 * @phba: pointer to lpfc HBA data structure.
827 *
828 * This routine will cleanup completed slow path events after HBA is reset
829 * when bringing down the SLI Layer.
830 *
831 *
832 * Return codes
833 * void.
834 **/
835 static void
lpfc_sli4_free_sp_events(struct lpfc_hba * phba)836 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
837 {
838 struct lpfc_iocbq *rspiocbq;
839 struct hbq_dmabuf *dmabuf;
840 struct lpfc_cq_event *cq_event;
841
842 spin_lock_irq(&phba->hbalock);
843 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
844 spin_unlock_irq(&phba->hbalock);
845
846 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
847 /* Get the response iocb from the head of work queue */
848 spin_lock_irq(&phba->hbalock);
849 list_remove_head(&phba->sli4_hba.sp_queue_event,
850 cq_event, struct lpfc_cq_event, list);
851 spin_unlock_irq(&phba->hbalock);
852
853 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
854 case CQE_CODE_COMPL_WQE:
855 rspiocbq = container_of(cq_event, struct lpfc_iocbq,
856 cq_event);
857 lpfc_sli_release_iocbq(phba, rspiocbq);
858 break;
859 case CQE_CODE_RECEIVE:
860 case CQE_CODE_RECEIVE_V1:
861 dmabuf = container_of(cq_event, struct hbq_dmabuf,
862 cq_event);
863 lpfc_in_buf_free(phba, &dmabuf->dbuf);
864 }
865 }
866 }
867
868 /**
869 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
870 * @phba: pointer to lpfc HBA data structure.
871 *
872 * This routine will cleanup posted ELS buffers after the HBA is reset
873 * when bringing down the SLI Layer.
874 *
875 *
876 * Return codes
877 * void.
878 **/
879 static void
lpfc_hba_free_post_buf(struct lpfc_hba * phba)880 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
881 {
882 struct lpfc_sli *psli = &phba->sli;
883 struct lpfc_sli_ring *pring;
884 struct lpfc_dmabuf *mp, *next_mp;
885 LIST_HEAD(buflist);
886 int count;
887
888 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
889 lpfc_sli_hbqbuf_free_all(phba);
890 else {
891 /* Cleanup preposted buffers on the ELS ring */
892 pring = &psli->ring[LPFC_ELS_RING];
893 spin_lock_irq(&phba->hbalock);
894 list_splice_init(&pring->postbufq, &buflist);
895 spin_unlock_irq(&phba->hbalock);
896
897 count = 0;
898 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
899 list_del(&mp->list);
900 count++;
901 lpfc_mbuf_free(phba, mp->virt, mp->phys);
902 kfree(mp);
903 }
904
905 spin_lock_irq(&phba->hbalock);
906 pring->postbufq_cnt -= count;
907 spin_unlock_irq(&phba->hbalock);
908 }
909 }
910
911 /**
912 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
913 * @phba: pointer to lpfc HBA data structure.
914 *
915 * This routine will cleanup the txcmplq after the HBA is reset when bringing
916 * down the SLI Layer.
917 *
918 * Return codes
919 * void
920 **/
921 static void
lpfc_hba_clean_txcmplq(struct lpfc_hba * phba)922 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
923 {
924 struct lpfc_sli *psli = &phba->sli;
925 struct lpfc_sli_ring *pring;
926 LIST_HEAD(completions);
927 int i;
928
929 for (i = 0; i < psli->num_rings; i++) {
930 pring = &psli->ring[i];
931 if (phba->sli_rev >= LPFC_SLI_REV4)
932 spin_lock_irq(&pring->ring_lock);
933 else
934 spin_lock_irq(&phba->hbalock);
935 /* At this point in time the HBA is either reset or DOA. Either
936 * way, nothing should be on txcmplq as it will NEVER complete.
937 */
938 list_splice_init(&pring->txcmplq, &completions);
939 pring->txcmplq_cnt = 0;
940
941 if (phba->sli_rev >= LPFC_SLI_REV4)
942 spin_unlock_irq(&pring->ring_lock);
943 else
944 spin_unlock_irq(&phba->hbalock);
945
946 /* Cancel all the IOCBs from the completions list */
947 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
948 IOERR_SLI_ABORTED);
949 lpfc_sli_abort_iocb_ring(phba, pring);
950 }
951 }
952
953 /**
954 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
955 int i;
956 * @phba: pointer to lpfc HBA data structure.
957 *
958 * This routine will do uninitialization after the HBA is reset when bring
959 * down the SLI Layer.
960 *
961 * Return codes
962 * 0 - success.
963 * Any other value - error.
964 **/
965 static int
lpfc_hba_down_post_s3(struct lpfc_hba * phba)966 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
967 {
968 lpfc_hba_free_post_buf(phba);
969 lpfc_hba_clean_txcmplq(phba);
970 return 0;
971 }
972
973 /**
974 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
975 * @phba: pointer to lpfc HBA data structure.
976 *
977 * This routine will do uninitialization after the HBA is reset when bring
978 * down the SLI Layer.
979 *
980 * Return codes
981 * 0 - success.
982 * Any other value - error.
983 **/
984 static int
lpfc_hba_down_post_s4(struct lpfc_hba * phba)985 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
986 {
987 struct lpfc_scsi_buf *psb, *psb_next;
988 LIST_HEAD(aborts);
989 unsigned long iflag = 0;
990 struct lpfc_sglq *sglq_entry = NULL;
991 struct lpfc_sli *psli = &phba->sli;
992 struct lpfc_sli_ring *pring;
993
994 lpfc_hba_free_post_buf(phba);
995 lpfc_hba_clean_txcmplq(phba);
996 pring = &psli->ring[LPFC_ELS_RING];
997
998 /* At this point in time the HBA is either reset or DOA. Either
999 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1000 * on the lpfc_sgl_list so that it can either be freed if the
1001 * driver is unloading or reposted if the driver is restarting
1002 * the port.
1003 */
1004 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
1005 /* scsl_buf_list */
1006 /* abts_sgl_list_lock required because worker thread uses this
1007 * list.
1008 */
1009 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
1010 list_for_each_entry(sglq_entry,
1011 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1012 sglq_entry->state = SGL_FREED;
1013
1014 spin_lock(&pring->ring_lock);
1015 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1016 &phba->sli4_hba.lpfc_sgl_list);
1017 spin_unlock(&pring->ring_lock);
1018 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
1019 /* abts_scsi_buf_list_lock required because worker thread uses this
1020 * list.
1021 */
1022 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1023 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1024 &aborts);
1025 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1026 spin_unlock_irq(&phba->hbalock);
1027
1028 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1029 psb->pCmd = NULL;
1030 psb->status = IOSTAT_SUCCESS;
1031 }
1032 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1033 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1034 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1035
1036 lpfc_sli4_free_sp_events(phba);
1037 return 0;
1038 }
1039
1040 /**
1041 * lpfc_hba_down_post - Wrapper func for hba down post routine
1042 * @phba: pointer to lpfc HBA data structure.
1043 *
1044 * This routine wraps the actual SLI3 or SLI4 routine for performing
1045 * uninitialization after the HBA is reset when bring down the SLI Layer.
1046 *
1047 * Return codes
1048 * 0 - success.
1049 * Any other value - error.
1050 **/
1051 int
lpfc_hba_down_post(struct lpfc_hba * phba)1052 lpfc_hba_down_post(struct lpfc_hba *phba)
1053 {
1054 return (*phba->lpfc_hba_down_post)(phba);
1055 }
1056
1057 /**
1058 * lpfc_hb_timeout - The HBA-timer timeout handler
1059 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1060 *
1061 * This is the HBA-timer timeout handler registered to the lpfc driver. When
1062 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1063 * work-port-events bitmap and the worker thread is notified. This timeout
1064 * event will be used by the worker thread to invoke the actual timeout
1065 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1066 * be performed in the timeout handler and the HBA timeout event bit shall
1067 * be cleared by the worker thread after it has taken the event bitmap out.
1068 **/
1069 static void
lpfc_hb_timeout(unsigned long ptr)1070 lpfc_hb_timeout(unsigned long ptr)
1071 {
1072 struct lpfc_hba *phba;
1073 uint32_t tmo_posted;
1074 unsigned long iflag;
1075
1076 phba = (struct lpfc_hba *)ptr;
1077
1078 /* Check for heart beat timeout conditions */
1079 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1080 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1081 if (!tmo_posted)
1082 phba->pport->work_port_events |= WORKER_HB_TMO;
1083 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1084
1085 /* Tell the worker thread there is work to do */
1086 if (!tmo_posted)
1087 lpfc_worker_wake_up(phba);
1088 return;
1089 }
1090
1091 /**
1092 * lpfc_rrq_timeout - The RRQ-timer timeout handler
1093 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1094 *
1095 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1096 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1097 * work-port-events bitmap and the worker thread is notified. This timeout
1098 * event will be used by the worker thread to invoke the actual timeout
1099 * handler routine, lpfc_rrq_handler. Any periodical operations will
1100 * be performed in the timeout handler and the RRQ timeout event bit shall
1101 * be cleared by the worker thread after it has taken the event bitmap out.
1102 **/
1103 static void
lpfc_rrq_timeout(unsigned long ptr)1104 lpfc_rrq_timeout(unsigned long ptr)
1105 {
1106 struct lpfc_hba *phba;
1107 unsigned long iflag;
1108
1109 phba = (struct lpfc_hba *)ptr;
1110 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1111 if (!(phba->pport->load_flag & FC_UNLOADING))
1112 phba->hba_flag |= HBA_RRQ_ACTIVE;
1113 else
1114 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1115 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1116
1117 if (!(phba->pport->load_flag & FC_UNLOADING))
1118 lpfc_worker_wake_up(phba);
1119 }
1120
1121 /**
1122 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1123 * @phba: pointer to lpfc hba data structure.
1124 * @pmboxq: pointer to the driver internal queue element for mailbox command.
1125 *
1126 * This is the callback function to the lpfc heart-beat mailbox command.
1127 * If configured, the lpfc driver issues the heart-beat mailbox command to
1128 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1129 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1130 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1131 * heart-beat outstanding state. Once the mailbox command comes back and
1132 * no error conditions detected, the heart-beat mailbox command timer is
1133 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1134 * state is cleared for the next heart-beat. If the timer expired with the
1135 * heart-beat outstanding state set, the driver will put the HBA offline.
1136 **/
1137 static void
lpfc_hb_mbox_cmpl(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmboxq)1138 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1139 {
1140 unsigned long drvr_flag;
1141
1142 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1143 phba->hb_outstanding = 0;
1144 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1145
1146 /* Check and reset heart-beat timer is necessary */
1147 mempool_free(pmboxq, phba->mbox_mem_pool);
1148 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1149 !(phba->link_state == LPFC_HBA_ERROR) &&
1150 !(phba->pport->load_flag & FC_UNLOADING))
1151 mod_timer(&phba->hb_tmofunc,
1152 jiffies +
1153 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1154 return;
1155 }
1156
1157 /**
1158 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1159 * @phba: pointer to lpfc hba data structure.
1160 *
1161 * This is the actual HBA-timer timeout handler to be invoked by the worker
1162 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1163 * handler performs any periodic operations needed for the device. If such
1164 * periodic event has already been attended to either in the interrupt handler
1165 * or by processing slow-ring or fast-ring events within the HBA-timer
1166 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1167 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1168 * is configured and there is no heart-beat mailbox command outstanding, a
1169 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1170 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1171 * to offline.
1172 **/
1173 void
lpfc_hb_timeout_handler(struct lpfc_hba * phba)1174 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1175 {
1176 struct lpfc_vport **vports;
1177 LPFC_MBOXQ_t *pmboxq;
1178 struct lpfc_dmabuf *buf_ptr;
1179 int retval, i;
1180 struct lpfc_sli *psli = &phba->sli;
1181 LIST_HEAD(completions);
1182
1183 vports = lpfc_create_vport_work_array(phba);
1184 if (vports != NULL)
1185 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1186 lpfc_rcv_seq_check_edtov(vports[i]);
1187 lpfc_destroy_vport_work_array(phba, vports);
1188
1189 if ((phba->link_state == LPFC_HBA_ERROR) ||
1190 (phba->pport->load_flag & FC_UNLOADING) ||
1191 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1192 return;
1193
1194 spin_lock_irq(&phba->pport->work_port_lock);
1195
1196 if (time_after(phba->last_completion_time +
1197 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1198 jiffies)) {
1199 spin_unlock_irq(&phba->pport->work_port_lock);
1200 if (!phba->hb_outstanding)
1201 mod_timer(&phba->hb_tmofunc,
1202 jiffies +
1203 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1204 else
1205 mod_timer(&phba->hb_tmofunc,
1206 jiffies +
1207 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1208 return;
1209 }
1210 spin_unlock_irq(&phba->pport->work_port_lock);
1211
1212 if (phba->elsbuf_cnt &&
1213 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1214 spin_lock_irq(&phba->hbalock);
1215 list_splice_init(&phba->elsbuf, &completions);
1216 phba->elsbuf_cnt = 0;
1217 phba->elsbuf_prev_cnt = 0;
1218 spin_unlock_irq(&phba->hbalock);
1219
1220 while (!list_empty(&completions)) {
1221 list_remove_head(&completions, buf_ptr,
1222 struct lpfc_dmabuf, list);
1223 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1224 kfree(buf_ptr);
1225 }
1226 }
1227 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1228
1229 /* If there is no heart beat outstanding, issue a heartbeat command */
1230 if (phba->cfg_enable_hba_heartbeat) {
1231 if (!phba->hb_outstanding) {
1232 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1233 (list_empty(&psli->mboxq))) {
1234 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1235 GFP_KERNEL);
1236 if (!pmboxq) {
1237 mod_timer(&phba->hb_tmofunc,
1238 jiffies +
1239 msecs_to_jiffies(1000 *
1240 LPFC_HB_MBOX_INTERVAL));
1241 return;
1242 }
1243
1244 lpfc_heart_beat(phba, pmboxq);
1245 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1246 pmboxq->vport = phba->pport;
1247 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1248 MBX_NOWAIT);
1249
1250 if (retval != MBX_BUSY &&
1251 retval != MBX_SUCCESS) {
1252 mempool_free(pmboxq,
1253 phba->mbox_mem_pool);
1254 mod_timer(&phba->hb_tmofunc,
1255 jiffies +
1256 msecs_to_jiffies(1000 *
1257 LPFC_HB_MBOX_INTERVAL));
1258 return;
1259 }
1260 phba->skipped_hb = 0;
1261 phba->hb_outstanding = 1;
1262 } else if (time_before_eq(phba->last_completion_time,
1263 phba->skipped_hb)) {
1264 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1265 "2857 Last completion time not "
1266 " updated in %d ms\n",
1267 jiffies_to_msecs(jiffies
1268 - phba->last_completion_time));
1269 } else
1270 phba->skipped_hb = jiffies;
1271
1272 mod_timer(&phba->hb_tmofunc,
1273 jiffies +
1274 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1275 return;
1276 } else {
1277 /*
1278 * If heart beat timeout called with hb_outstanding set
1279 * we need to give the hb mailbox cmd a chance to
1280 * complete or TMO.
1281 */
1282 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1283 "0459 Adapter heartbeat still out"
1284 "standing:last compl time was %d ms.\n",
1285 jiffies_to_msecs(jiffies
1286 - phba->last_completion_time));
1287 mod_timer(&phba->hb_tmofunc,
1288 jiffies +
1289 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1290 }
1291 }
1292 }
1293
1294 /**
1295 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1296 * @phba: pointer to lpfc hba data structure.
1297 *
1298 * This routine is called to bring the HBA offline when HBA hardware error
1299 * other than Port Error 6 has been detected.
1300 **/
1301 static void
lpfc_offline_eratt(struct lpfc_hba * phba)1302 lpfc_offline_eratt(struct lpfc_hba *phba)
1303 {
1304 struct lpfc_sli *psli = &phba->sli;
1305
1306 spin_lock_irq(&phba->hbalock);
1307 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1308 spin_unlock_irq(&phba->hbalock);
1309 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1310
1311 lpfc_offline(phba);
1312 lpfc_reset_barrier(phba);
1313 spin_lock_irq(&phba->hbalock);
1314 lpfc_sli_brdreset(phba);
1315 spin_unlock_irq(&phba->hbalock);
1316 lpfc_hba_down_post(phba);
1317 lpfc_sli_brdready(phba, HS_MBRDY);
1318 lpfc_unblock_mgmt_io(phba);
1319 phba->link_state = LPFC_HBA_ERROR;
1320 return;
1321 }
1322
1323 /**
1324 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1325 * @phba: pointer to lpfc hba data structure.
1326 *
1327 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1328 * other than Port Error 6 has been detected.
1329 **/
1330 void
lpfc_sli4_offline_eratt(struct lpfc_hba * phba)1331 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1332 {
1333 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1334 lpfc_offline(phba);
1335 lpfc_sli4_brdreset(phba);
1336 lpfc_hba_down_post(phba);
1337 lpfc_sli4_post_status_check(phba);
1338 lpfc_unblock_mgmt_io(phba);
1339 phba->link_state = LPFC_HBA_ERROR;
1340 }
1341
1342 /**
1343 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1344 * @phba: pointer to lpfc hba data structure.
1345 *
1346 * This routine is invoked to handle the deferred HBA hardware error
1347 * conditions. This type of error is indicated by HBA by setting ER1
1348 * and another ER bit in the host status register. The driver will
1349 * wait until the ER1 bit clears before handling the error condition.
1350 **/
1351 static void
lpfc_handle_deferred_eratt(struct lpfc_hba * phba)1352 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1353 {
1354 uint32_t old_host_status = phba->work_hs;
1355 struct lpfc_sli *psli = &phba->sli;
1356
1357 /* If the pci channel is offline, ignore possible errors,
1358 * since we cannot communicate with the pci card anyway.
1359 */
1360 if (pci_channel_offline(phba->pcidev)) {
1361 spin_lock_irq(&phba->hbalock);
1362 phba->hba_flag &= ~DEFER_ERATT;
1363 spin_unlock_irq(&phba->hbalock);
1364 return;
1365 }
1366
1367 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1368 "0479 Deferred Adapter Hardware Error "
1369 "Data: x%x x%x x%x\n",
1370 phba->work_hs,
1371 phba->work_status[0], phba->work_status[1]);
1372
1373 spin_lock_irq(&phba->hbalock);
1374 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1375 spin_unlock_irq(&phba->hbalock);
1376
1377
1378 /*
1379 * Firmware stops when it triggred erratt. That could cause the I/Os
1380 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1381 * SCSI layer retry it after re-establishing link.
1382 */
1383 lpfc_sli_abort_fcp_rings(phba);
1384
1385 /*
1386 * There was a firmware error. Take the hba offline and then
1387 * attempt to restart it.
1388 */
1389 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1390 lpfc_offline(phba);
1391
1392 /* Wait for the ER1 bit to clear.*/
1393 while (phba->work_hs & HS_FFER1) {
1394 msleep(100);
1395 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1396 phba->work_hs = UNPLUG_ERR ;
1397 break;
1398 }
1399 /* If driver is unloading let the worker thread continue */
1400 if (phba->pport->load_flag & FC_UNLOADING) {
1401 phba->work_hs = 0;
1402 break;
1403 }
1404 }
1405
1406 /*
1407 * This is to ptrotect against a race condition in which
1408 * first write to the host attention register clear the
1409 * host status register.
1410 */
1411 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1412 phba->work_hs = old_host_status & ~HS_FFER1;
1413
1414 spin_lock_irq(&phba->hbalock);
1415 phba->hba_flag &= ~DEFER_ERATT;
1416 spin_unlock_irq(&phba->hbalock);
1417 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1418 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1419 }
1420
1421 static void
lpfc_board_errevt_to_mgmt(struct lpfc_hba * phba)1422 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1423 {
1424 struct lpfc_board_event_header board_event;
1425 struct Scsi_Host *shost;
1426
1427 board_event.event_type = FC_REG_BOARD_EVENT;
1428 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1429 shost = lpfc_shost_from_vport(phba->pport);
1430 fc_host_post_vendor_event(shost, fc_get_event_number(),
1431 sizeof(board_event),
1432 (char *) &board_event,
1433 LPFC_NL_VENDOR_ID);
1434 }
1435
1436 /**
1437 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1438 * @phba: pointer to lpfc hba data structure.
1439 *
1440 * This routine is invoked to handle the following HBA hardware error
1441 * conditions:
1442 * 1 - HBA error attention interrupt
1443 * 2 - DMA ring index out of range
1444 * 3 - Mailbox command came back as unknown
1445 **/
1446 static void
lpfc_handle_eratt_s3(struct lpfc_hba * phba)1447 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1448 {
1449 struct lpfc_vport *vport = phba->pport;
1450 struct lpfc_sli *psli = &phba->sli;
1451 uint32_t event_data;
1452 unsigned long temperature;
1453 struct temp_event temp_event_data;
1454 struct Scsi_Host *shost;
1455
1456 /* If the pci channel is offline, ignore possible errors,
1457 * since we cannot communicate with the pci card anyway.
1458 */
1459 if (pci_channel_offline(phba->pcidev)) {
1460 spin_lock_irq(&phba->hbalock);
1461 phba->hba_flag &= ~DEFER_ERATT;
1462 spin_unlock_irq(&phba->hbalock);
1463 return;
1464 }
1465
1466 /* If resets are disabled then leave the HBA alone and return */
1467 if (!phba->cfg_enable_hba_reset)
1468 return;
1469
1470 /* Send an internal error event to mgmt application */
1471 lpfc_board_errevt_to_mgmt(phba);
1472
1473 if (phba->hba_flag & DEFER_ERATT)
1474 lpfc_handle_deferred_eratt(phba);
1475
1476 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1477 if (phba->work_hs & HS_FFER6)
1478 /* Re-establishing Link */
1479 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1480 "1301 Re-establishing Link "
1481 "Data: x%x x%x x%x\n",
1482 phba->work_hs, phba->work_status[0],
1483 phba->work_status[1]);
1484 if (phba->work_hs & HS_FFER8)
1485 /* Device Zeroization */
1486 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1487 "2861 Host Authentication device "
1488 "zeroization Data:x%x x%x x%x\n",
1489 phba->work_hs, phba->work_status[0],
1490 phba->work_status[1]);
1491
1492 spin_lock_irq(&phba->hbalock);
1493 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1494 spin_unlock_irq(&phba->hbalock);
1495
1496 /*
1497 * Firmware stops when it triggled erratt with HS_FFER6.
1498 * That could cause the I/Os dropped by the firmware.
1499 * Error iocb (I/O) on txcmplq and let the SCSI layer
1500 * retry it after re-establishing link.
1501 */
1502 lpfc_sli_abort_fcp_rings(phba);
1503
1504 /*
1505 * There was a firmware error. Take the hba offline and then
1506 * attempt to restart it.
1507 */
1508 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1509 lpfc_offline(phba);
1510 lpfc_sli_brdrestart(phba);
1511 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1512 lpfc_unblock_mgmt_io(phba);
1513 return;
1514 }
1515 lpfc_unblock_mgmt_io(phba);
1516 } else if (phba->work_hs & HS_CRIT_TEMP) {
1517 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1518 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1519 temp_event_data.event_code = LPFC_CRIT_TEMP;
1520 temp_event_data.data = (uint32_t)temperature;
1521
1522 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1523 "0406 Adapter maximum temperature exceeded "
1524 "(%ld), taking this port offline "
1525 "Data: x%x x%x x%x\n",
1526 temperature, phba->work_hs,
1527 phba->work_status[0], phba->work_status[1]);
1528
1529 shost = lpfc_shost_from_vport(phba->pport);
1530 fc_host_post_vendor_event(shost, fc_get_event_number(),
1531 sizeof(temp_event_data),
1532 (char *) &temp_event_data,
1533 SCSI_NL_VID_TYPE_PCI
1534 | PCI_VENDOR_ID_EMULEX);
1535
1536 spin_lock_irq(&phba->hbalock);
1537 phba->over_temp_state = HBA_OVER_TEMP;
1538 spin_unlock_irq(&phba->hbalock);
1539 lpfc_offline_eratt(phba);
1540
1541 } else {
1542 /* The if clause above forces this code path when the status
1543 * failure is a value other than FFER6. Do not call the offline
1544 * twice. This is the adapter hardware error path.
1545 */
1546 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1547 "0457 Adapter Hardware Error "
1548 "Data: x%x x%x x%x\n",
1549 phba->work_hs,
1550 phba->work_status[0], phba->work_status[1]);
1551
1552 event_data = FC_REG_DUMP_EVENT;
1553 shost = lpfc_shost_from_vport(vport);
1554 fc_host_post_vendor_event(shost, fc_get_event_number(),
1555 sizeof(event_data), (char *) &event_data,
1556 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1557
1558 lpfc_offline_eratt(phba);
1559 }
1560 return;
1561 }
1562
1563 /**
1564 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1565 * @phba: pointer to lpfc hba data structure.
1566 * @mbx_action: flag for mailbox shutdown action.
1567 *
1568 * This routine is invoked to perform an SLI4 port PCI function reset in
1569 * response to port status register polling attention. It waits for port
1570 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1571 * During this process, interrupt vectors are freed and later requested
1572 * for handling possible port resource change.
1573 **/
1574 static int
lpfc_sli4_port_sta_fn_reset(struct lpfc_hba * phba,int mbx_action,bool en_rn_msg)1575 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1576 bool en_rn_msg)
1577 {
1578 int rc;
1579 uint32_t intr_mode;
1580
1581 /*
1582 * On error status condition, driver need to wait for port
1583 * ready before performing reset.
1584 */
1585 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1586 if (!rc) {
1587 /* need reset: attempt for port recovery */
1588 if (en_rn_msg)
1589 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1590 "2887 Reset Needed: Attempting Port "
1591 "Recovery...\n");
1592 lpfc_offline_prep(phba, mbx_action);
1593 lpfc_offline(phba);
1594 /* release interrupt for possible resource change */
1595 lpfc_sli4_disable_intr(phba);
1596 lpfc_sli_brdrestart(phba);
1597 /* request and enable interrupt */
1598 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1599 if (intr_mode == LPFC_INTR_ERROR) {
1600 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1601 "3175 Failed to enable interrupt\n");
1602 return -EIO;
1603 } else {
1604 phba->intr_mode = intr_mode;
1605 }
1606 rc = lpfc_online(phba);
1607 if (rc == 0)
1608 lpfc_unblock_mgmt_io(phba);
1609 }
1610 return rc;
1611 }
1612
1613 /**
1614 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1615 * @phba: pointer to lpfc hba data structure.
1616 *
1617 * This routine is invoked to handle the SLI4 HBA hardware error attention
1618 * conditions.
1619 **/
1620 static void
lpfc_handle_eratt_s4(struct lpfc_hba * phba)1621 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1622 {
1623 struct lpfc_vport *vport = phba->pport;
1624 uint32_t event_data;
1625 struct Scsi_Host *shost;
1626 uint32_t if_type;
1627 struct lpfc_register portstat_reg = {0};
1628 uint32_t reg_err1, reg_err2;
1629 uint32_t uerrlo_reg, uemasklo_reg;
1630 uint32_t pci_rd_rc1, pci_rd_rc2;
1631 bool en_rn_msg = true;
1632 int rc;
1633
1634 /* If the pci channel is offline, ignore possible errors, since
1635 * we cannot communicate with the pci card anyway.
1636 */
1637 if (pci_channel_offline(phba->pcidev))
1638 return;
1639 /* If resets are disabled then leave the HBA alone and return */
1640 if (!phba->cfg_enable_hba_reset)
1641 return;
1642
1643 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1644 switch (if_type) {
1645 case LPFC_SLI_INTF_IF_TYPE_0:
1646 pci_rd_rc1 = lpfc_readl(
1647 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1648 &uerrlo_reg);
1649 pci_rd_rc2 = lpfc_readl(
1650 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1651 &uemasklo_reg);
1652 /* consider PCI bus read error as pci_channel_offline */
1653 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1654 return;
1655 lpfc_sli4_offline_eratt(phba);
1656 break;
1657 case LPFC_SLI_INTF_IF_TYPE_2:
1658 pci_rd_rc1 = lpfc_readl(
1659 phba->sli4_hba.u.if_type2.STATUSregaddr,
1660 &portstat_reg.word0);
1661 /* consider PCI bus read error as pci_channel_offline */
1662 if (pci_rd_rc1 == -EIO) {
1663 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1664 "3151 PCI bus read access failure: x%x\n",
1665 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1666 return;
1667 }
1668 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1669 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1670 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1671 /* TODO: Register for Overtemp async events. */
1672 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1673 "2889 Port Overtemperature event, "
1674 "taking port offline\n");
1675 spin_lock_irq(&phba->hbalock);
1676 phba->over_temp_state = HBA_OVER_TEMP;
1677 spin_unlock_irq(&phba->hbalock);
1678 lpfc_sli4_offline_eratt(phba);
1679 break;
1680 }
1681 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1682 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1683 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1684 "3143 Port Down: Firmware Update "
1685 "Detected\n");
1686 en_rn_msg = false;
1687 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1688 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1689 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1690 "3144 Port Down: Debug Dump\n");
1691 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1692 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1693 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1694 "3145 Port Down: Provisioning\n");
1695
1696 /* Check port status register for function reset */
1697 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1698 en_rn_msg);
1699 if (rc == 0) {
1700 /* don't report event on forced debug dump */
1701 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1702 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1703 return;
1704 else
1705 break;
1706 }
1707 /* fall through for not able to recover */
1708 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1709 "3152 Unrecoverable error, bring the port "
1710 "offline\n");
1711 lpfc_sli4_offline_eratt(phba);
1712 break;
1713 case LPFC_SLI_INTF_IF_TYPE_1:
1714 default:
1715 break;
1716 }
1717 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1718 "3123 Report dump event to upper layer\n");
1719 /* Send an internal error event to mgmt application */
1720 lpfc_board_errevt_to_mgmt(phba);
1721
1722 event_data = FC_REG_DUMP_EVENT;
1723 shost = lpfc_shost_from_vport(vport);
1724 fc_host_post_vendor_event(shost, fc_get_event_number(),
1725 sizeof(event_data), (char *) &event_data,
1726 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1727 }
1728
1729 /**
1730 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1731 * @phba: pointer to lpfc HBA data structure.
1732 *
1733 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1734 * routine from the API jump table function pointer from the lpfc_hba struct.
1735 *
1736 * Return codes
1737 * 0 - success.
1738 * Any other value - error.
1739 **/
1740 void
lpfc_handle_eratt(struct lpfc_hba * phba)1741 lpfc_handle_eratt(struct lpfc_hba *phba)
1742 {
1743 (*phba->lpfc_handle_eratt)(phba);
1744 }
1745
1746 /**
1747 * lpfc_handle_latt - The HBA link event handler
1748 * @phba: pointer to lpfc hba data structure.
1749 *
1750 * This routine is invoked from the worker thread to handle a HBA host
1751 * attention link event.
1752 **/
1753 void
lpfc_handle_latt(struct lpfc_hba * phba)1754 lpfc_handle_latt(struct lpfc_hba *phba)
1755 {
1756 struct lpfc_vport *vport = phba->pport;
1757 struct lpfc_sli *psli = &phba->sli;
1758 LPFC_MBOXQ_t *pmb;
1759 volatile uint32_t control;
1760 struct lpfc_dmabuf *mp;
1761 int rc = 0;
1762
1763 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1764 if (!pmb) {
1765 rc = 1;
1766 goto lpfc_handle_latt_err_exit;
1767 }
1768
1769 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1770 if (!mp) {
1771 rc = 2;
1772 goto lpfc_handle_latt_free_pmb;
1773 }
1774
1775 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1776 if (!mp->virt) {
1777 rc = 3;
1778 goto lpfc_handle_latt_free_mp;
1779 }
1780
1781 /* Cleanup any outstanding ELS commands */
1782 lpfc_els_flush_all_cmd(phba);
1783
1784 psli->slistat.link_event++;
1785 lpfc_read_topology(phba, pmb, mp);
1786 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1787 pmb->vport = vport;
1788 /* Block ELS IOCBs until we have processed this mbox command */
1789 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1790 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1791 if (rc == MBX_NOT_FINISHED) {
1792 rc = 4;
1793 goto lpfc_handle_latt_free_mbuf;
1794 }
1795
1796 /* Clear Link Attention in HA REG */
1797 spin_lock_irq(&phba->hbalock);
1798 writel(HA_LATT, phba->HAregaddr);
1799 readl(phba->HAregaddr); /* flush */
1800 spin_unlock_irq(&phba->hbalock);
1801
1802 return;
1803
1804 lpfc_handle_latt_free_mbuf:
1805 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1806 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1807 lpfc_handle_latt_free_mp:
1808 kfree(mp);
1809 lpfc_handle_latt_free_pmb:
1810 mempool_free(pmb, phba->mbox_mem_pool);
1811 lpfc_handle_latt_err_exit:
1812 /* Enable Link attention interrupts */
1813 spin_lock_irq(&phba->hbalock);
1814 psli->sli_flag |= LPFC_PROCESS_LA;
1815 control = readl(phba->HCregaddr);
1816 control |= HC_LAINT_ENA;
1817 writel(control, phba->HCregaddr);
1818 readl(phba->HCregaddr); /* flush */
1819
1820 /* Clear Link Attention in HA REG */
1821 writel(HA_LATT, phba->HAregaddr);
1822 readl(phba->HAregaddr); /* flush */
1823 spin_unlock_irq(&phba->hbalock);
1824 lpfc_linkdown(phba);
1825 phba->link_state = LPFC_HBA_ERROR;
1826
1827 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1828 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1829
1830 return;
1831 }
1832
1833 /**
1834 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1835 * @phba: pointer to lpfc hba data structure.
1836 * @vpd: pointer to the vital product data.
1837 * @len: length of the vital product data in bytes.
1838 *
1839 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1840 * an array of characters. In this routine, the ModelName, ProgramType, and
1841 * ModelDesc, etc. fields of the phba data structure will be populated.
1842 *
1843 * Return codes
1844 * 0 - pointer to the VPD passed in is NULL
1845 * 1 - success
1846 **/
1847 int
lpfc_parse_vpd(struct lpfc_hba * phba,uint8_t * vpd,int len)1848 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1849 {
1850 uint8_t lenlo, lenhi;
1851 int Length;
1852 int i, j;
1853 int finished = 0;
1854 int index = 0;
1855
1856 if (!vpd)
1857 return 0;
1858
1859 /* Vital Product */
1860 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1861 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1862 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1863 (uint32_t) vpd[3]);
1864 while (!finished && (index < (len - 4))) {
1865 switch (vpd[index]) {
1866 case 0x82:
1867 case 0x91:
1868 index += 1;
1869 lenlo = vpd[index];
1870 index += 1;
1871 lenhi = vpd[index];
1872 index += 1;
1873 i = ((((unsigned short)lenhi) << 8) + lenlo);
1874 index += i;
1875 break;
1876 case 0x90:
1877 index += 1;
1878 lenlo = vpd[index];
1879 index += 1;
1880 lenhi = vpd[index];
1881 index += 1;
1882 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1883 if (Length > len - index)
1884 Length = len - index;
1885 while (Length > 0) {
1886 /* Look for Serial Number */
1887 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1888 index += 2;
1889 i = vpd[index];
1890 index += 1;
1891 j = 0;
1892 Length -= (3+i);
1893 while(i--) {
1894 phba->SerialNumber[j++] = vpd[index++];
1895 if (j == 31)
1896 break;
1897 }
1898 phba->SerialNumber[j] = 0;
1899 continue;
1900 }
1901 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1902 phba->vpd_flag |= VPD_MODEL_DESC;
1903 index += 2;
1904 i = vpd[index];
1905 index += 1;
1906 j = 0;
1907 Length -= (3+i);
1908 while(i--) {
1909 phba->ModelDesc[j++] = vpd[index++];
1910 if (j == 255)
1911 break;
1912 }
1913 phba->ModelDesc[j] = 0;
1914 continue;
1915 }
1916 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1917 phba->vpd_flag |= VPD_MODEL_NAME;
1918 index += 2;
1919 i = vpd[index];
1920 index += 1;
1921 j = 0;
1922 Length -= (3+i);
1923 while(i--) {
1924 phba->ModelName[j++] = vpd[index++];
1925 if (j == 79)
1926 break;
1927 }
1928 phba->ModelName[j] = 0;
1929 continue;
1930 }
1931 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1932 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1933 index += 2;
1934 i = vpd[index];
1935 index += 1;
1936 j = 0;
1937 Length -= (3+i);
1938 while(i--) {
1939 phba->ProgramType[j++] = vpd[index++];
1940 if (j == 255)
1941 break;
1942 }
1943 phba->ProgramType[j] = 0;
1944 continue;
1945 }
1946 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1947 phba->vpd_flag |= VPD_PORT;
1948 index += 2;
1949 i = vpd[index];
1950 index += 1;
1951 j = 0;
1952 Length -= (3+i);
1953 while(i--) {
1954 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1955 (phba->sli4_hba.pport_name_sta ==
1956 LPFC_SLI4_PPNAME_GET)) {
1957 j++;
1958 index++;
1959 } else
1960 phba->Port[j++] = vpd[index++];
1961 if (j == 19)
1962 break;
1963 }
1964 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1965 (phba->sli4_hba.pport_name_sta ==
1966 LPFC_SLI4_PPNAME_NON))
1967 phba->Port[j] = 0;
1968 continue;
1969 }
1970 else {
1971 index += 2;
1972 i = vpd[index];
1973 index += 1;
1974 index += i;
1975 Length -= (3 + i);
1976 }
1977 }
1978 finished = 0;
1979 break;
1980 case 0x78:
1981 finished = 1;
1982 break;
1983 default:
1984 index ++;
1985 break;
1986 }
1987 }
1988
1989 return(1);
1990 }
1991
1992 /**
1993 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1994 * @phba: pointer to lpfc hba data structure.
1995 * @mdp: pointer to the data structure to hold the derived model name.
1996 * @descp: pointer to the data structure to hold the derived description.
1997 *
1998 * This routine retrieves HBA's description based on its registered PCI device
1999 * ID. The @descp passed into this function points to an array of 256 chars. It
2000 * shall be returned with the model name, maximum speed, and the host bus type.
2001 * The @mdp passed into this function points to an array of 80 chars. When the
2002 * function returns, the @mdp will be filled with the model name.
2003 **/
2004 static void
lpfc_get_hba_model_desc(struct lpfc_hba * phba,uint8_t * mdp,uint8_t * descp)2005 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2006 {
2007 lpfc_vpd_t *vp;
2008 uint16_t dev_id = phba->pcidev->device;
2009 int max_speed;
2010 int GE = 0;
2011 int oneConnect = 0; /* default is not a oneConnect */
2012 struct {
2013 char *name;
2014 char *bus;
2015 char *function;
2016 } m = {"<Unknown>", "", ""};
2017
2018 if (mdp && mdp[0] != '\0'
2019 && descp && descp[0] != '\0')
2020 return;
2021
2022 if (phba->lmt & LMT_16Gb)
2023 max_speed = 16;
2024 else if (phba->lmt & LMT_10Gb)
2025 max_speed = 10;
2026 else if (phba->lmt & LMT_8Gb)
2027 max_speed = 8;
2028 else if (phba->lmt & LMT_4Gb)
2029 max_speed = 4;
2030 else if (phba->lmt & LMT_2Gb)
2031 max_speed = 2;
2032 else if (phba->lmt & LMT_1Gb)
2033 max_speed = 1;
2034 else
2035 max_speed = 0;
2036
2037 vp = &phba->vpd;
2038
2039 switch (dev_id) {
2040 case PCI_DEVICE_ID_FIREFLY:
2041 m = (typeof(m)){"LP6000", "PCI",
2042 "Obsolete, Unsupported Fibre Channel Adapter"};
2043 break;
2044 case PCI_DEVICE_ID_SUPERFLY:
2045 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2046 m = (typeof(m)){"LP7000", "PCI", ""};
2047 else
2048 m = (typeof(m)){"LP7000E", "PCI", ""};
2049 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2050 break;
2051 case PCI_DEVICE_ID_DRAGONFLY:
2052 m = (typeof(m)){"LP8000", "PCI",
2053 "Obsolete, Unsupported Fibre Channel Adapter"};
2054 break;
2055 case PCI_DEVICE_ID_CENTAUR:
2056 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2057 m = (typeof(m)){"LP9002", "PCI", ""};
2058 else
2059 m = (typeof(m)){"LP9000", "PCI", ""};
2060 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2061 break;
2062 case PCI_DEVICE_ID_RFLY:
2063 m = (typeof(m)){"LP952", "PCI",
2064 "Obsolete, Unsupported Fibre Channel Adapter"};
2065 break;
2066 case PCI_DEVICE_ID_PEGASUS:
2067 m = (typeof(m)){"LP9802", "PCI-X",
2068 "Obsolete, Unsupported Fibre Channel Adapter"};
2069 break;
2070 case PCI_DEVICE_ID_THOR:
2071 m = (typeof(m)){"LP10000", "PCI-X",
2072 "Obsolete, Unsupported Fibre Channel Adapter"};
2073 break;
2074 case PCI_DEVICE_ID_VIPER:
2075 m = (typeof(m)){"LPX1000", "PCI-X",
2076 "Obsolete, Unsupported Fibre Channel Adapter"};
2077 break;
2078 case PCI_DEVICE_ID_PFLY:
2079 m = (typeof(m)){"LP982", "PCI-X",
2080 "Obsolete, Unsupported Fibre Channel Adapter"};
2081 break;
2082 case PCI_DEVICE_ID_TFLY:
2083 m = (typeof(m)){"LP1050", "PCI-X",
2084 "Obsolete, Unsupported Fibre Channel Adapter"};
2085 break;
2086 case PCI_DEVICE_ID_HELIOS:
2087 m = (typeof(m)){"LP11000", "PCI-X2",
2088 "Obsolete, Unsupported Fibre Channel Adapter"};
2089 break;
2090 case PCI_DEVICE_ID_HELIOS_SCSP:
2091 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2092 "Obsolete, Unsupported Fibre Channel Adapter"};
2093 break;
2094 case PCI_DEVICE_ID_HELIOS_DCSP:
2095 m = (typeof(m)){"LP11002-SP", "PCI-X2",
2096 "Obsolete, Unsupported Fibre Channel Adapter"};
2097 break;
2098 case PCI_DEVICE_ID_NEPTUNE:
2099 m = (typeof(m)){"LPe1000", "PCIe",
2100 "Obsolete, Unsupported Fibre Channel Adapter"};
2101 break;
2102 case PCI_DEVICE_ID_NEPTUNE_SCSP:
2103 m = (typeof(m)){"LPe1000-SP", "PCIe",
2104 "Obsolete, Unsupported Fibre Channel Adapter"};
2105 break;
2106 case PCI_DEVICE_ID_NEPTUNE_DCSP:
2107 m = (typeof(m)){"LPe1002-SP", "PCIe",
2108 "Obsolete, Unsupported Fibre Channel Adapter"};
2109 break;
2110 case PCI_DEVICE_ID_BMID:
2111 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2112 break;
2113 case PCI_DEVICE_ID_BSMB:
2114 m = (typeof(m)){"LP111", "PCI-X2",
2115 "Obsolete, Unsupported Fibre Channel Adapter"};
2116 break;
2117 case PCI_DEVICE_ID_ZEPHYR:
2118 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2119 break;
2120 case PCI_DEVICE_ID_ZEPHYR_SCSP:
2121 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2122 break;
2123 case PCI_DEVICE_ID_ZEPHYR_DCSP:
2124 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2125 GE = 1;
2126 break;
2127 case PCI_DEVICE_ID_ZMID:
2128 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2129 break;
2130 case PCI_DEVICE_ID_ZSMB:
2131 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2132 break;
2133 case PCI_DEVICE_ID_LP101:
2134 m = (typeof(m)){"LP101", "PCI-X",
2135 "Obsolete, Unsupported Fibre Channel Adapter"};
2136 break;
2137 case PCI_DEVICE_ID_LP10000S:
2138 m = (typeof(m)){"LP10000-S", "PCI",
2139 "Obsolete, Unsupported Fibre Channel Adapter"};
2140 break;
2141 case PCI_DEVICE_ID_LP11000S:
2142 m = (typeof(m)){"LP11000-S", "PCI-X2",
2143 "Obsolete, Unsupported Fibre Channel Adapter"};
2144 break;
2145 case PCI_DEVICE_ID_LPE11000S:
2146 m = (typeof(m)){"LPe11000-S", "PCIe",
2147 "Obsolete, Unsupported Fibre Channel Adapter"};
2148 break;
2149 case PCI_DEVICE_ID_SAT:
2150 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2151 break;
2152 case PCI_DEVICE_ID_SAT_MID:
2153 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2154 break;
2155 case PCI_DEVICE_ID_SAT_SMB:
2156 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2157 break;
2158 case PCI_DEVICE_ID_SAT_DCSP:
2159 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2160 break;
2161 case PCI_DEVICE_ID_SAT_SCSP:
2162 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2163 break;
2164 case PCI_DEVICE_ID_SAT_S:
2165 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2166 break;
2167 case PCI_DEVICE_ID_HORNET:
2168 m = (typeof(m)){"LP21000", "PCIe",
2169 "Obsolete, Unsupported FCoE Adapter"};
2170 GE = 1;
2171 break;
2172 case PCI_DEVICE_ID_PROTEUS_VF:
2173 m = (typeof(m)){"LPev12000", "PCIe IOV",
2174 "Obsolete, Unsupported Fibre Channel Adapter"};
2175 break;
2176 case PCI_DEVICE_ID_PROTEUS_PF:
2177 m = (typeof(m)){"LPev12000", "PCIe IOV",
2178 "Obsolete, Unsupported Fibre Channel Adapter"};
2179 break;
2180 case PCI_DEVICE_ID_PROTEUS_S:
2181 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2182 "Obsolete, Unsupported Fibre Channel Adapter"};
2183 break;
2184 case PCI_DEVICE_ID_TIGERSHARK:
2185 oneConnect = 1;
2186 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2187 break;
2188 case PCI_DEVICE_ID_TOMCAT:
2189 oneConnect = 1;
2190 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2191 break;
2192 case PCI_DEVICE_ID_FALCON:
2193 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2194 "EmulexSecure Fibre"};
2195 break;
2196 case PCI_DEVICE_ID_BALIUS:
2197 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2198 "Obsolete, Unsupported Fibre Channel Adapter"};
2199 break;
2200 case PCI_DEVICE_ID_LANCER_FC:
2201 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2202 break;
2203 case PCI_DEVICE_ID_LANCER_FC_VF:
2204 m = (typeof(m)){"LPe16000", "PCIe",
2205 "Obsolete, Unsupported Fibre Channel Adapter"};
2206 break;
2207 case PCI_DEVICE_ID_LANCER_FCOE:
2208 oneConnect = 1;
2209 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2210 break;
2211 case PCI_DEVICE_ID_LANCER_FCOE_VF:
2212 oneConnect = 1;
2213 m = (typeof(m)){"OCe15100", "PCIe",
2214 "Obsolete, Unsupported FCoE"};
2215 break;
2216 case PCI_DEVICE_ID_SKYHAWK:
2217 case PCI_DEVICE_ID_SKYHAWK_VF:
2218 oneConnect = 1;
2219 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2220 break;
2221 default:
2222 m = (typeof(m)){"Unknown", "", ""};
2223 break;
2224 }
2225
2226 if (mdp && mdp[0] == '\0')
2227 snprintf(mdp, 79,"%s", m.name);
2228 /*
2229 * oneConnect hba requires special processing, they are all initiators
2230 * and we put the port number on the end
2231 */
2232 if (descp && descp[0] == '\0') {
2233 if (oneConnect)
2234 snprintf(descp, 255,
2235 "Emulex OneConnect %s, %s Initiator %s",
2236 m.name, m.function,
2237 phba->Port);
2238 else if (max_speed == 0)
2239 snprintf(descp, 255,
2240 "Emulex %s %s %s ",
2241 m.name, m.bus, m.function);
2242 else
2243 snprintf(descp, 255,
2244 "Emulex %s %d%s %s %s",
2245 m.name, max_speed, (GE) ? "GE" : "Gb",
2246 m.bus, m.function);
2247 }
2248 }
2249
2250 /**
2251 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2252 * @phba: pointer to lpfc hba data structure.
2253 * @pring: pointer to a IOCB ring.
2254 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2255 *
2256 * This routine posts a given number of IOCBs with the associated DMA buffer
2257 * descriptors specified by the cnt argument to the given IOCB ring.
2258 *
2259 * Return codes
2260 * The number of IOCBs NOT able to be posted to the IOCB ring.
2261 **/
2262 int
lpfc_post_buffer(struct lpfc_hba * phba,struct lpfc_sli_ring * pring,int cnt)2263 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2264 {
2265 IOCB_t *icmd;
2266 struct lpfc_iocbq *iocb;
2267 struct lpfc_dmabuf *mp1, *mp2;
2268
2269 cnt += pring->missbufcnt;
2270
2271 /* While there are buffers to post */
2272 while (cnt > 0) {
2273 /* Allocate buffer for command iocb */
2274 iocb = lpfc_sli_get_iocbq(phba);
2275 if (iocb == NULL) {
2276 pring->missbufcnt = cnt;
2277 return cnt;
2278 }
2279 icmd = &iocb->iocb;
2280
2281 /* 2 buffers can be posted per command */
2282 /* Allocate buffer to post */
2283 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2284 if (mp1)
2285 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2286 if (!mp1 || !mp1->virt) {
2287 kfree(mp1);
2288 lpfc_sli_release_iocbq(phba, iocb);
2289 pring->missbufcnt = cnt;
2290 return cnt;
2291 }
2292
2293 INIT_LIST_HEAD(&mp1->list);
2294 /* Allocate buffer to post */
2295 if (cnt > 1) {
2296 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2297 if (mp2)
2298 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2299 &mp2->phys);
2300 if (!mp2 || !mp2->virt) {
2301 kfree(mp2);
2302 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2303 kfree(mp1);
2304 lpfc_sli_release_iocbq(phba, iocb);
2305 pring->missbufcnt = cnt;
2306 return cnt;
2307 }
2308
2309 INIT_LIST_HEAD(&mp2->list);
2310 } else {
2311 mp2 = NULL;
2312 }
2313
2314 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2315 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2316 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2317 icmd->ulpBdeCount = 1;
2318 cnt--;
2319 if (mp2) {
2320 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2321 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2322 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2323 cnt--;
2324 icmd->ulpBdeCount = 2;
2325 }
2326
2327 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2328 icmd->ulpLe = 1;
2329
2330 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2331 IOCB_ERROR) {
2332 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2333 kfree(mp1);
2334 cnt++;
2335 if (mp2) {
2336 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2337 kfree(mp2);
2338 cnt++;
2339 }
2340 lpfc_sli_release_iocbq(phba, iocb);
2341 pring->missbufcnt = cnt;
2342 return cnt;
2343 }
2344 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2345 if (mp2)
2346 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2347 }
2348 pring->missbufcnt = 0;
2349 return 0;
2350 }
2351
2352 /**
2353 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2354 * @phba: pointer to lpfc hba data structure.
2355 *
2356 * This routine posts initial receive IOCB buffers to the ELS ring. The
2357 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2358 * set to 64 IOCBs.
2359 *
2360 * Return codes
2361 * 0 - success (currently always success)
2362 **/
2363 static int
lpfc_post_rcv_buf(struct lpfc_hba * phba)2364 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2365 {
2366 struct lpfc_sli *psli = &phba->sli;
2367
2368 /* Ring 0, ELS / CT buffers */
2369 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2370 /* Ring 2 - FCP no buffers needed */
2371
2372 return 0;
2373 }
2374
2375 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2376
2377 /**
2378 * lpfc_sha_init - Set up initial array of hash table entries
2379 * @HashResultPointer: pointer to an array as hash table.
2380 *
2381 * This routine sets up the initial values to the array of hash table entries
2382 * for the LC HBAs.
2383 **/
2384 static void
lpfc_sha_init(uint32_t * HashResultPointer)2385 lpfc_sha_init(uint32_t * HashResultPointer)
2386 {
2387 HashResultPointer[0] = 0x67452301;
2388 HashResultPointer[1] = 0xEFCDAB89;
2389 HashResultPointer[2] = 0x98BADCFE;
2390 HashResultPointer[3] = 0x10325476;
2391 HashResultPointer[4] = 0xC3D2E1F0;
2392 }
2393
2394 /**
2395 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2396 * @HashResultPointer: pointer to an initial/result hash table.
2397 * @HashWorkingPointer: pointer to an working hash table.
2398 *
2399 * This routine iterates an initial hash table pointed by @HashResultPointer
2400 * with the values from the working hash table pointeed by @HashWorkingPointer.
2401 * The results are putting back to the initial hash table, returned through
2402 * the @HashResultPointer as the result hash table.
2403 **/
2404 static void
lpfc_sha_iterate(uint32_t * HashResultPointer,uint32_t * HashWorkingPointer)2405 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2406 {
2407 int t;
2408 uint32_t TEMP;
2409 uint32_t A, B, C, D, E;
2410 t = 16;
2411 do {
2412 HashWorkingPointer[t] =
2413 S(1,
2414 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2415 8] ^
2416 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2417 } while (++t <= 79);
2418 t = 0;
2419 A = HashResultPointer[0];
2420 B = HashResultPointer[1];
2421 C = HashResultPointer[2];
2422 D = HashResultPointer[3];
2423 E = HashResultPointer[4];
2424
2425 do {
2426 if (t < 20) {
2427 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2428 } else if (t < 40) {
2429 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2430 } else if (t < 60) {
2431 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2432 } else {
2433 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2434 }
2435 TEMP += S(5, A) + E + HashWorkingPointer[t];
2436 E = D;
2437 D = C;
2438 C = S(30, B);
2439 B = A;
2440 A = TEMP;
2441 } while (++t <= 79);
2442
2443 HashResultPointer[0] += A;
2444 HashResultPointer[1] += B;
2445 HashResultPointer[2] += C;
2446 HashResultPointer[3] += D;
2447 HashResultPointer[4] += E;
2448
2449 }
2450
2451 /**
2452 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2453 * @RandomChallenge: pointer to the entry of host challenge random number array.
2454 * @HashWorking: pointer to the entry of the working hash array.
2455 *
2456 * This routine calculates the working hash array referred by @HashWorking
2457 * from the challenge random numbers associated with the host, referred by
2458 * @RandomChallenge. The result is put into the entry of the working hash
2459 * array and returned by reference through @HashWorking.
2460 **/
2461 static void
lpfc_challenge_key(uint32_t * RandomChallenge,uint32_t * HashWorking)2462 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2463 {
2464 *HashWorking = (*RandomChallenge ^ *HashWorking);
2465 }
2466
2467 /**
2468 * lpfc_hba_init - Perform special handling for LC HBA initialization
2469 * @phba: pointer to lpfc hba data structure.
2470 * @hbainit: pointer to an array of unsigned 32-bit integers.
2471 *
2472 * This routine performs the special handling for LC HBA initialization.
2473 **/
2474 void
lpfc_hba_init(struct lpfc_hba * phba,uint32_t * hbainit)2475 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2476 {
2477 int t;
2478 uint32_t *HashWorking;
2479 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2480
2481 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2482 if (!HashWorking)
2483 return;
2484
2485 HashWorking[0] = HashWorking[78] = *pwwnn++;
2486 HashWorking[1] = HashWorking[79] = *pwwnn;
2487
2488 for (t = 0; t < 7; t++)
2489 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2490
2491 lpfc_sha_init(hbainit);
2492 lpfc_sha_iterate(hbainit, HashWorking);
2493 kfree(HashWorking);
2494 }
2495
2496 /**
2497 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2498 * @vport: pointer to a virtual N_Port data structure.
2499 *
2500 * This routine performs the necessary cleanups before deleting the @vport.
2501 * It invokes the discovery state machine to perform necessary state
2502 * transitions and to release the ndlps associated with the @vport. Note,
2503 * the physical port is treated as @vport 0.
2504 **/
2505 void
lpfc_cleanup(struct lpfc_vport * vport)2506 lpfc_cleanup(struct lpfc_vport *vport)
2507 {
2508 struct lpfc_hba *phba = vport->phba;
2509 struct lpfc_nodelist *ndlp, *next_ndlp;
2510 int i = 0;
2511
2512 if (phba->link_state > LPFC_LINK_DOWN)
2513 lpfc_port_link_failure(vport);
2514
2515 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2516 if (!NLP_CHK_NODE_ACT(ndlp)) {
2517 ndlp = lpfc_enable_node(vport, ndlp,
2518 NLP_STE_UNUSED_NODE);
2519 if (!ndlp)
2520 continue;
2521 spin_lock_irq(&phba->ndlp_lock);
2522 NLP_SET_FREE_REQ(ndlp);
2523 spin_unlock_irq(&phba->ndlp_lock);
2524 /* Trigger the release of the ndlp memory */
2525 lpfc_nlp_put(ndlp);
2526 continue;
2527 }
2528 spin_lock_irq(&phba->ndlp_lock);
2529 if (NLP_CHK_FREE_REQ(ndlp)) {
2530 /* The ndlp should not be in memory free mode already */
2531 spin_unlock_irq(&phba->ndlp_lock);
2532 continue;
2533 } else
2534 /* Indicate request for freeing ndlp memory */
2535 NLP_SET_FREE_REQ(ndlp);
2536 spin_unlock_irq(&phba->ndlp_lock);
2537
2538 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2539 ndlp->nlp_DID == Fabric_DID) {
2540 /* Just free up ndlp with Fabric_DID for vports */
2541 lpfc_nlp_put(ndlp);
2542 continue;
2543 }
2544
2545 /* take care of nodes in unused state before the state
2546 * machine taking action.
2547 */
2548 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2549 lpfc_nlp_put(ndlp);
2550 continue;
2551 }
2552
2553 if (ndlp->nlp_type & NLP_FABRIC)
2554 lpfc_disc_state_machine(vport, ndlp, NULL,
2555 NLP_EVT_DEVICE_RECOVERY);
2556
2557 lpfc_disc_state_machine(vport, ndlp, NULL,
2558 NLP_EVT_DEVICE_RM);
2559 }
2560
2561 /* At this point, ALL ndlp's should be gone
2562 * because of the previous NLP_EVT_DEVICE_RM.
2563 * Lets wait for this to happen, if needed.
2564 */
2565 while (!list_empty(&vport->fc_nodes)) {
2566 if (i++ > 3000) {
2567 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2568 "0233 Nodelist not empty\n");
2569 list_for_each_entry_safe(ndlp, next_ndlp,
2570 &vport->fc_nodes, nlp_listp) {
2571 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2572 LOG_NODE,
2573 "0282 did:x%x ndlp:x%p "
2574 "usgmap:x%x refcnt:%d\n",
2575 ndlp->nlp_DID, (void *)ndlp,
2576 ndlp->nlp_usg_map,
2577 atomic_read(
2578 &ndlp->kref.refcount));
2579 }
2580 break;
2581 }
2582
2583 /* Wait for any activity on ndlps to settle */
2584 msleep(10);
2585 }
2586 lpfc_cleanup_vports_rrqs(vport, NULL);
2587 }
2588
2589 /**
2590 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2591 * @vport: pointer to a virtual N_Port data structure.
2592 *
2593 * This routine stops all the timers associated with a @vport. This function
2594 * is invoked before disabling or deleting a @vport. Note that the physical
2595 * port is treated as @vport 0.
2596 **/
2597 void
lpfc_stop_vport_timers(struct lpfc_vport * vport)2598 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2599 {
2600 del_timer_sync(&vport->els_tmofunc);
2601 del_timer_sync(&vport->fc_fdmitmo);
2602 del_timer_sync(&vport->delayed_disc_tmo);
2603 lpfc_can_disctmo(vport);
2604 return;
2605 }
2606
2607 /**
2608 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2609 * @phba: pointer to lpfc hba data structure.
2610 *
2611 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2612 * caller of this routine should already hold the host lock.
2613 **/
2614 void
__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba * phba)2615 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2616 {
2617 /* Clear pending FCF rediscovery wait flag */
2618 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2619
2620 /* Now, try to stop the timer */
2621 del_timer(&phba->fcf.redisc_wait);
2622 }
2623
2624 /**
2625 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2626 * @phba: pointer to lpfc hba data structure.
2627 *
2628 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2629 * checks whether the FCF rediscovery wait timer is pending with the host
2630 * lock held before proceeding with disabling the timer and clearing the
2631 * wait timer pendig flag.
2632 **/
2633 void
lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba * phba)2634 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2635 {
2636 spin_lock_irq(&phba->hbalock);
2637 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2638 /* FCF rediscovery timer already fired or stopped */
2639 spin_unlock_irq(&phba->hbalock);
2640 return;
2641 }
2642 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2643 /* Clear failover in progress flags */
2644 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2645 spin_unlock_irq(&phba->hbalock);
2646 }
2647
2648 /**
2649 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2650 * @phba: pointer to lpfc hba data structure.
2651 *
2652 * This routine stops all the timers associated with a HBA. This function is
2653 * invoked before either putting a HBA offline or unloading the driver.
2654 **/
2655 void
lpfc_stop_hba_timers(struct lpfc_hba * phba)2656 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2657 {
2658 lpfc_stop_vport_timers(phba->pport);
2659 del_timer_sync(&phba->sli.mbox_tmo);
2660 del_timer_sync(&phba->fabric_block_timer);
2661 del_timer_sync(&phba->eratt_poll);
2662 del_timer_sync(&phba->hb_tmofunc);
2663 if (phba->sli_rev == LPFC_SLI_REV4) {
2664 del_timer_sync(&phba->rrq_tmr);
2665 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2666 }
2667 phba->hb_outstanding = 0;
2668
2669 switch (phba->pci_dev_grp) {
2670 case LPFC_PCI_DEV_LP:
2671 /* Stop any LightPulse device specific driver timers */
2672 del_timer_sync(&phba->fcp_poll_timer);
2673 break;
2674 case LPFC_PCI_DEV_OC:
2675 /* Stop any OneConnect device sepcific driver timers */
2676 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2677 break;
2678 default:
2679 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2680 "0297 Invalid device group (x%x)\n",
2681 phba->pci_dev_grp);
2682 break;
2683 }
2684 return;
2685 }
2686
2687 /**
2688 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2689 * @phba: pointer to lpfc hba data structure.
2690 *
2691 * This routine marks a HBA's management interface as blocked. Once the HBA's
2692 * management interface is marked as blocked, all the user space access to
2693 * the HBA, whether they are from sysfs interface or libdfc interface will
2694 * all be blocked. The HBA is set to block the management interface when the
2695 * driver prepares the HBA interface for online or offline.
2696 **/
2697 static void
lpfc_block_mgmt_io(struct lpfc_hba * phba,int mbx_action)2698 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2699 {
2700 unsigned long iflag;
2701 uint8_t actcmd = MBX_HEARTBEAT;
2702 unsigned long timeout;
2703
2704 spin_lock_irqsave(&phba->hbalock, iflag);
2705 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2706 spin_unlock_irqrestore(&phba->hbalock, iflag);
2707 if (mbx_action == LPFC_MBX_NO_WAIT)
2708 return;
2709 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2710 spin_lock_irqsave(&phba->hbalock, iflag);
2711 if (phba->sli.mbox_active) {
2712 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2713 /* Determine how long we might wait for the active mailbox
2714 * command to be gracefully completed by firmware.
2715 */
2716 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2717 phba->sli.mbox_active) * 1000) + jiffies;
2718 }
2719 spin_unlock_irqrestore(&phba->hbalock, iflag);
2720
2721 /* Wait for the outstnading mailbox command to complete */
2722 while (phba->sli.mbox_active) {
2723 /* Check active mailbox complete status every 2ms */
2724 msleep(2);
2725 if (time_after(jiffies, timeout)) {
2726 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2727 "2813 Mgmt IO is Blocked %x "
2728 "- mbox cmd %x still active\n",
2729 phba->sli.sli_flag, actcmd);
2730 break;
2731 }
2732 }
2733 }
2734
2735 /**
2736 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2737 * @phba: pointer to lpfc hba data structure.
2738 *
2739 * Allocate RPIs for all active remote nodes. This is needed whenever
2740 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2741 * is to fixup the temporary rpi assignments.
2742 **/
2743 void
lpfc_sli4_node_prep(struct lpfc_hba * phba)2744 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2745 {
2746 struct lpfc_nodelist *ndlp, *next_ndlp;
2747 struct lpfc_vport **vports;
2748 int i;
2749
2750 if (phba->sli_rev != LPFC_SLI_REV4)
2751 return;
2752
2753 vports = lpfc_create_vport_work_array(phba);
2754 if (vports != NULL) {
2755 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2756 if (vports[i]->load_flag & FC_UNLOADING)
2757 continue;
2758
2759 list_for_each_entry_safe(ndlp, next_ndlp,
2760 &vports[i]->fc_nodes,
2761 nlp_listp) {
2762 if (NLP_CHK_NODE_ACT(ndlp))
2763 ndlp->nlp_rpi =
2764 lpfc_sli4_alloc_rpi(phba);
2765 }
2766 }
2767 }
2768 lpfc_destroy_vport_work_array(phba, vports);
2769 }
2770
2771 /**
2772 * lpfc_online - Initialize and bring a HBA online
2773 * @phba: pointer to lpfc hba data structure.
2774 *
2775 * This routine initializes the HBA and brings a HBA online. During this
2776 * process, the management interface is blocked to prevent user space access
2777 * to the HBA interfering with the driver initialization.
2778 *
2779 * Return codes
2780 * 0 - successful
2781 * 1 - failed
2782 **/
2783 int
lpfc_online(struct lpfc_hba * phba)2784 lpfc_online(struct lpfc_hba *phba)
2785 {
2786 struct lpfc_vport *vport;
2787 struct lpfc_vport **vports;
2788 int i;
2789 bool vpis_cleared = false;
2790
2791 if (!phba)
2792 return 0;
2793 vport = phba->pport;
2794
2795 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2796 return 0;
2797
2798 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2799 "0458 Bring Adapter online\n");
2800
2801 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2802
2803 if (!lpfc_sli_queue_setup(phba)) {
2804 lpfc_unblock_mgmt_io(phba);
2805 return 1;
2806 }
2807
2808 if (phba->sli_rev == LPFC_SLI_REV4) {
2809 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2810 lpfc_unblock_mgmt_io(phba);
2811 return 1;
2812 }
2813 spin_lock_irq(&phba->hbalock);
2814 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2815 vpis_cleared = true;
2816 spin_unlock_irq(&phba->hbalock);
2817 } else {
2818 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2819 lpfc_unblock_mgmt_io(phba);
2820 return 1;
2821 }
2822 }
2823
2824 vports = lpfc_create_vport_work_array(phba);
2825 if (vports != NULL) {
2826 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2827 struct Scsi_Host *shost;
2828 shost = lpfc_shost_from_vport(vports[i]);
2829 spin_lock_irq(shost->host_lock);
2830 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2831 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2832 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2833 if (phba->sli_rev == LPFC_SLI_REV4) {
2834 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2835 if ((vpis_cleared) &&
2836 (vports[i]->port_type !=
2837 LPFC_PHYSICAL_PORT))
2838 vports[i]->vpi = 0;
2839 }
2840 spin_unlock_irq(shost->host_lock);
2841 }
2842 }
2843 lpfc_destroy_vport_work_array(phba, vports);
2844
2845 lpfc_unblock_mgmt_io(phba);
2846 return 0;
2847 }
2848
2849 /**
2850 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2851 * @phba: pointer to lpfc hba data structure.
2852 *
2853 * This routine marks a HBA's management interface as not blocked. Once the
2854 * HBA's management interface is marked as not blocked, all the user space
2855 * access to the HBA, whether they are from sysfs interface or libdfc
2856 * interface will be allowed. The HBA is set to block the management interface
2857 * when the driver prepares the HBA interface for online or offline and then
2858 * set to unblock the management interface afterwards.
2859 **/
2860 void
lpfc_unblock_mgmt_io(struct lpfc_hba * phba)2861 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2862 {
2863 unsigned long iflag;
2864
2865 spin_lock_irqsave(&phba->hbalock, iflag);
2866 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2867 spin_unlock_irqrestore(&phba->hbalock, iflag);
2868 }
2869
2870 /**
2871 * lpfc_offline_prep - Prepare a HBA to be brought offline
2872 * @phba: pointer to lpfc hba data structure.
2873 *
2874 * This routine is invoked to prepare a HBA to be brought offline. It performs
2875 * unregistration login to all the nodes on all vports and flushes the mailbox
2876 * queue to make it ready to be brought offline.
2877 **/
2878 void
lpfc_offline_prep(struct lpfc_hba * phba,int mbx_action)2879 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2880 {
2881 struct lpfc_vport *vport = phba->pport;
2882 struct lpfc_nodelist *ndlp, *next_ndlp;
2883 struct lpfc_vport **vports;
2884 struct Scsi_Host *shost;
2885 int i;
2886
2887 if (vport->fc_flag & FC_OFFLINE_MODE)
2888 return;
2889
2890 lpfc_block_mgmt_io(phba, mbx_action);
2891
2892 lpfc_linkdown(phba);
2893
2894 /* Issue an unreg_login to all nodes on all vports */
2895 vports = lpfc_create_vport_work_array(phba);
2896 if (vports != NULL) {
2897 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2898 if (vports[i]->load_flag & FC_UNLOADING)
2899 continue;
2900 shost = lpfc_shost_from_vport(vports[i]);
2901 spin_lock_irq(shost->host_lock);
2902 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2903 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2904 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2905 spin_unlock_irq(shost->host_lock);
2906
2907 shost = lpfc_shost_from_vport(vports[i]);
2908 list_for_each_entry_safe(ndlp, next_ndlp,
2909 &vports[i]->fc_nodes,
2910 nlp_listp) {
2911 if (!NLP_CHK_NODE_ACT(ndlp))
2912 continue;
2913 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2914 continue;
2915 if (ndlp->nlp_type & NLP_FABRIC) {
2916 lpfc_disc_state_machine(vports[i], ndlp,
2917 NULL, NLP_EVT_DEVICE_RECOVERY);
2918 lpfc_disc_state_machine(vports[i], ndlp,
2919 NULL, NLP_EVT_DEVICE_RM);
2920 }
2921 spin_lock_irq(shost->host_lock);
2922 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2923 spin_unlock_irq(shost->host_lock);
2924 /*
2925 * Whenever an SLI4 port goes offline, free the
2926 * RPI. Get a new RPI when the adapter port
2927 * comes back online.
2928 */
2929 if (phba->sli_rev == LPFC_SLI_REV4)
2930 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2931 lpfc_unreg_rpi(vports[i], ndlp);
2932 }
2933 }
2934 }
2935 lpfc_destroy_vport_work_array(phba, vports);
2936
2937 lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2938 }
2939
2940 /**
2941 * lpfc_offline - Bring a HBA offline
2942 * @phba: pointer to lpfc hba data structure.
2943 *
2944 * This routine actually brings a HBA offline. It stops all the timers
2945 * associated with the HBA, brings down the SLI layer, and eventually
2946 * marks the HBA as in offline state for the upper layer protocol.
2947 **/
2948 void
lpfc_offline(struct lpfc_hba * phba)2949 lpfc_offline(struct lpfc_hba *phba)
2950 {
2951 struct Scsi_Host *shost;
2952 struct lpfc_vport **vports;
2953 int i;
2954
2955 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2956 return;
2957
2958 /* stop port and all timers associated with this hba */
2959 lpfc_stop_port(phba);
2960 vports = lpfc_create_vport_work_array(phba);
2961 if (vports != NULL)
2962 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2963 lpfc_stop_vport_timers(vports[i]);
2964 lpfc_destroy_vport_work_array(phba, vports);
2965 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2966 "0460 Bring Adapter offline\n");
2967 /* Bring down the SLI Layer and cleanup. The HBA is offline
2968 now. */
2969 lpfc_sli_hba_down(phba);
2970 spin_lock_irq(&phba->hbalock);
2971 phba->work_ha = 0;
2972 spin_unlock_irq(&phba->hbalock);
2973 vports = lpfc_create_vport_work_array(phba);
2974 if (vports != NULL)
2975 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2976 shost = lpfc_shost_from_vport(vports[i]);
2977 spin_lock_irq(shost->host_lock);
2978 vports[i]->work_port_events = 0;
2979 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2980 spin_unlock_irq(shost->host_lock);
2981 }
2982 lpfc_destroy_vport_work_array(phba, vports);
2983 }
2984
2985 /**
2986 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2987 * @phba: pointer to lpfc hba data structure.
2988 *
2989 * This routine is to free all the SCSI buffers and IOCBs from the driver
2990 * list back to kernel. It is called from lpfc_pci_remove_one to free
2991 * the internal resources before the device is removed from the system.
2992 **/
2993 static void
lpfc_scsi_free(struct lpfc_hba * phba)2994 lpfc_scsi_free(struct lpfc_hba *phba)
2995 {
2996 struct lpfc_scsi_buf *sb, *sb_next;
2997 struct lpfc_iocbq *io, *io_next;
2998
2999 spin_lock_irq(&phba->hbalock);
3000
3001 /* Release all the lpfc_scsi_bufs maintained by this host. */
3002
3003 spin_lock(&phba->scsi_buf_list_put_lock);
3004 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3005 list) {
3006 list_del(&sb->list);
3007 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3008 sb->dma_handle);
3009 kfree(sb);
3010 phba->total_scsi_bufs--;
3011 }
3012 spin_unlock(&phba->scsi_buf_list_put_lock);
3013
3014 spin_lock(&phba->scsi_buf_list_get_lock);
3015 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3016 list) {
3017 list_del(&sb->list);
3018 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3019 sb->dma_handle);
3020 kfree(sb);
3021 phba->total_scsi_bufs--;
3022 }
3023 spin_unlock(&phba->scsi_buf_list_get_lock);
3024
3025 /* Release all the lpfc_iocbq entries maintained by this host. */
3026 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3027 list_del(&io->list);
3028 kfree(io);
3029 phba->total_iocbq_bufs--;
3030 }
3031
3032 spin_unlock_irq(&phba->hbalock);
3033 }
3034
3035 /**
3036 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3037 * @phba: pointer to lpfc hba data structure.
3038 *
3039 * This routine first calculates the sizes of the current els and allocated
3040 * scsi sgl lists, and then goes through all sgls to updates the physical
3041 * XRIs assigned due to port function reset. During port initialization, the
3042 * current els and allocated scsi sgl lists are 0s.
3043 *
3044 * Return codes
3045 * 0 - successful (for now, it always returns 0)
3046 **/
3047 int
lpfc_sli4_xri_sgl_update(struct lpfc_hba * phba)3048 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3049 {
3050 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3051 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3052 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3053 LIST_HEAD(els_sgl_list);
3054 LIST_HEAD(scsi_sgl_list);
3055 int rc;
3056 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3057
3058 /*
3059 * update on pci function's els xri-sgl list
3060 */
3061 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3062 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3063 /* els xri-sgl expanded */
3064 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3065 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3066 "3157 ELS xri-sgl count increased from "
3067 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3068 els_xri_cnt);
3069 /* allocate the additional els sgls */
3070 for (i = 0; i < xri_cnt; i++) {
3071 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3072 GFP_KERNEL);
3073 if (sglq_entry == NULL) {
3074 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3075 "2562 Failure to allocate an "
3076 "ELS sgl entry:%d\n", i);
3077 rc = -ENOMEM;
3078 goto out_free_mem;
3079 }
3080 sglq_entry->buff_type = GEN_BUFF_TYPE;
3081 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3082 &sglq_entry->phys);
3083 if (sglq_entry->virt == NULL) {
3084 kfree(sglq_entry);
3085 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3086 "2563 Failure to allocate an "
3087 "ELS mbuf:%d\n", i);
3088 rc = -ENOMEM;
3089 goto out_free_mem;
3090 }
3091 sglq_entry->sgl = sglq_entry->virt;
3092 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3093 sglq_entry->state = SGL_FREED;
3094 list_add_tail(&sglq_entry->list, &els_sgl_list);
3095 }
3096 spin_lock_irq(&phba->hbalock);
3097 spin_lock(&pring->ring_lock);
3098 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3099 spin_unlock(&pring->ring_lock);
3100 spin_unlock_irq(&phba->hbalock);
3101 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3102 /* els xri-sgl shrinked */
3103 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3104 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3105 "3158 ELS xri-sgl count decreased from "
3106 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3107 els_xri_cnt);
3108 spin_lock_irq(&phba->hbalock);
3109 spin_lock(&pring->ring_lock);
3110 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3111 spin_unlock(&pring->ring_lock);
3112 spin_unlock_irq(&phba->hbalock);
3113 /* release extra els sgls from list */
3114 for (i = 0; i < xri_cnt; i++) {
3115 list_remove_head(&els_sgl_list,
3116 sglq_entry, struct lpfc_sglq, list);
3117 if (sglq_entry) {
3118 lpfc_mbuf_free(phba, sglq_entry->virt,
3119 sglq_entry->phys);
3120 kfree(sglq_entry);
3121 }
3122 }
3123 spin_lock_irq(&phba->hbalock);
3124 spin_lock(&pring->ring_lock);
3125 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3126 spin_unlock(&pring->ring_lock);
3127 spin_unlock_irq(&phba->hbalock);
3128 } else
3129 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3130 "3163 ELS xri-sgl count unchanged: %d\n",
3131 els_xri_cnt);
3132 phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3133
3134 /* update xris to els sgls on the list */
3135 sglq_entry = NULL;
3136 sglq_entry_next = NULL;
3137 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3138 &phba->sli4_hba.lpfc_sgl_list, list) {
3139 lxri = lpfc_sli4_next_xritag(phba);
3140 if (lxri == NO_XRI) {
3141 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3142 "2400 Failed to allocate xri for "
3143 "ELS sgl\n");
3144 rc = -ENOMEM;
3145 goto out_free_mem;
3146 }
3147 sglq_entry->sli4_lxritag = lxri;
3148 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3149 }
3150
3151 /*
3152 * update on pci function's allocated scsi xri-sgl list
3153 */
3154 phba->total_scsi_bufs = 0;
3155
3156 /* maximum number of xris available for scsi buffers */
3157 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3158 els_xri_cnt;
3159
3160 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3161 "2401 Current allocated SCSI xri-sgl count:%d, "
3162 "maximum SCSI xri count:%d\n",
3163 phba->sli4_hba.scsi_xri_cnt,
3164 phba->sli4_hba.scsi_xri_max);
3165
3166 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3167 spin_lock(&phba->scsi_buf_list_put_lock);
3168 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3169 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3170 spin_unlock(&phba->scsi_buf_list_put_lock);
3171 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3172
3173 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3174 /* max scsi xri shrinked below the allocated scsi buffers */
3175 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3176 phba->sli4_hba.scsi_xri_max;
3177 /* release the extra allocated scsi buffers */
3178 for (i = 0; i < scsi_xri_cnt; i++) {
3179 list_remove_head(&scsi_sgl_list, psb,
3180 struct lpfc_scsi_buf, list);
3181 if (psb) {
3182 pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
3183 psb->data, psb->dma_handle);
3184 kfree(psb);
3185 }
3186 }
3187 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3188 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3189 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3190 }
3191
3192 /* update xris associated to remaining allocated scsi buffers */
3193 psb = NULL;
3194 psb_next = NULL;
3195 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3196 lxri = lpfc_sli4_next_xritag(phba);
3197 if (lxri == NO_XRI) {
3198 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3199 "2560 Failed to allocate xri for "
3200 "scsi buffer\n");
3201 rc = -ENOMEM;
3202 goto out_free_mem;
3203 }
3204 psb->cur_iocbq.sli4_lxritag = lxri;
3205 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3206 }
3207 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3208 spin_lock(&phba->scsi_buf_list_put_lock);
3209 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3210 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3211 spin_unlock(&phba->scsi_buf_list_put_lock);
3212 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3213
3214 return 0;
3215
3216 out_free_mem:
3217 lpfc_free_els_sgl_list(phba);
3218 lpfc_scsi_free(phba);
3219 return rc;
3220 }
3221
3222 /**
3223 * lpfc_create_port - Create an FC port
3224 * @phba: pointer to lpfc hba data structure.
3225 * @instance: a unique integer ID to this FC port.
3226 * @dev: pointer to the device data structure.
3227 *
3228 * This routine creates a FC port for the upper layer protocol. The FC port
3229 * can be created on top of either a physical port or a virtual port provided
3230 * by the HBA. This routine also allocates a SCSI host data structure (shost)
3231 * and associates the FC port created before adding the shost into the SCSI
3232 * layer.
3233 *
3234 * Return codes
3235 * @vport - pointer to the virtual N_Port data structure.
3236 * NULL - port create failed.
3237 **/
3238 struct lpfc_vport *
lpfc_create_port(struct lpfc_hba * phba,int instance,struct device * dev)3239 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3240 {
3241 struct lpfc_vport *vport;
3242 struct Scsi_Host *shost;
3243 int error = 0;
3244
3245 if (dev != &phba->pcidev->dev)
3246 shost = scsi_host_alloc(&lpfc_vport_template,
3247 sizeof(struct lpfc_vport));
3248 else
3249 shost = scsi_host_alloc(&lpfc_template,
3250 sizeof(struct lpfc_vport));
3251 if (!shost)
3252 goto out;
3253
3254 vport = (struct lpfc_vport *) shost->hostdata;
3255 vport->phba = phba;
3256 vport->load_flag |= FC_LOADING;
3257 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3258 vport->fc_rscn_flush = 0;
3259
3260 lpfc_get_vport_cfgparam(vport);
3261 shost->unique_id = instance;
3262 shost->max_id = LPFC_MAX_TARGET;
3263 shost->max_lun = vport->cfg_max_luns;
3264 shost->this_id = -1;
3265 shost->max_cmd_len = 16;
3266 if (phba->sli_rev == LPFC_SLI_REV4) {
3267 shost->dma_boundary =
3268 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3269 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3270 }
3271
3272 /*
3273 * Set initial can_queue value since 0 is no longer supported and
3274 * scsi_add_host will fail. This will be adjusted later based on the
3275 * max xri value determined in hba setup.
3276 */
3277 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3278 if (dev != &phba->pcidev->dev) {
3279 shost->transportt = lpfc_vport_transport_template;
3280 vport->port_type = LPFC_NPIV_PORT;
3281 } else {
3282 shost->transportt = lpfc_transport_template;
3283 vport->port_type = LPFC_PHYSICAL_PORT;
3284 }
3285
3286 /* Initialize all internally managed lists. */
3287 INIT_LIST_HEAD(&vport->fc_nodes);
3288 INIT_LIST_HEAD(&vport->rcv_buffer_list);
3289 spin_lock_init(&vport->work_port_lock);
3290
3291 init_timer(&vport->fc_disctmo);
3292 vport->fc_disctmo.function = lpfc_disc_timeout;
3293 vport->fc_disctmo.data = (unsigned long)vport;
3294
3295 init_timer(&vport->fc_fdmitmo);
3296 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3297 vport->fc_fdmitmo.data = (unsigned long)vport;
3298
3299 init_timer(&vport->els_tmofunc);
3300 vport->els_tmofunc.function = lpfc_els_timeout;
3301 vport->els_tmofunc.data = (unsigned long)vport;
3302
3303 init_timer(&vport->delayed_disc_tmo);
3304 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3305 vport->delayed_disc_tmo.data = (unsigned long)vport;
3306
3307 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3308 if (error)
3309 goto out_put_shost;
3310
3311 spin_lock_irq(&phba->hbalock);
3312 list_add_tail(&vport->listentry, &phba->port_list);
3313 spin_unlock_irq(&phba->hbalock);
3314 return vport;
3315
3316 out_put_shost:
3317 scsi_host_put(shost);
3318 out:
3319 return NULL;
3320 }
3321
3322 /**
3323 * destroy_port - destroy an FC port
3324 * @vport: pointer to an lpfc virtual N_Port data structure.
3325 *
3326 * This routine destroys a FC port from the upper layer protocol. All the
3327 * resources associated with the port are released.
3328 **/
3329 void
destroy_port(struct lpfc_vport * vport)3330 destroy_port(struct lpfc_vport *vport)
3331 {
3332 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3333 struct lpfc_hba *phba = vport->phba;
3334
3335 lpfc_debugfs_terminate(vport);
3336 fc_remove_host(shost);
3337 scsi_remove_host(shost);
3338
3339 spin_lock_irq(&phba->hbalock);
3340 list_del_init(&vport->listentry);
3341 spin_unlock_irq(&phba->hbalock);
3342
3343 lpfc_cleanup(vport);
3344 return;
3345 }
3346
3347 /**
3348 * lpfc_get_instance - Get a unique integer ID
3349 *
3350 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3351 * uses the kernel idr facility to perform the task.
3352 *
3353 * Return codes:
3354 * instance - a unique integer ID allocated as the new instance.
3355 * -1 - lpfc get instance failed.
3356 **/
3357 int
lpfc_get_instance(void)3358 lpfc_get_instance(void)
3359 {
3360 int ret;
3361
3362 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3363 return ret < 0 ? -1 : ret;
3364 }
3365
3366 /**
3367 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3368 * @shost: pointer to SCSI host data structure.
3369 * @time: elapsed time of the scan in jiffies.
3370 *
3371 * This routine is called by the SCSI layer with a SCSI host to determine
3372 * whether the scan host is finished.
3373 *
3374 * Note: there is no scan_start function as adapter initialization will have
3375 * asynchronously kicked off the link initialization.
3376 *
3377 * Return codes
3378 * 0 - SCSI host scan is not over yet.
3379 * 1 - SCSI host scan is over.
3380 **/
lpfc_scan_finished(struct Scsi_Host * shost,unsigned long time)3381 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3382 {
3383 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3384 struct lpfc_hba *phba = vport->phba;
3385 int stat = 0;
3386
3387 spin_lock_irq(shost->host_lock);
3388
3389 if (vport->load_flag & FC_UNLOADING) {
3390 stat = 1;
3391 goto finished;
3392 }
3393 if (time >= msecs_to_jiffies(30 * 1000)) {
3394 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3395 "0461 Scanning longer than 30 "
3396 "seconds. Continuing initialization\n");
3397 stat = 1;
3398 goto finished;
3399 }
3400 if (time >= msecs_to_jiffies(15 * 1000) &&
3401 phba->link_state <= LPFC_LINK_DOWN) {
3402 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3403 "0465 Link down longer than 15 "
3404 "seconds. Continuing initialization\n");
3405 stat = 1;
3406 goto finished;
3407 }
3408
3409 if (vport->port_state != LPFC_VPORT_READY)
3410 goto finished;
3411 if (vport->num_disc_nodes || vport->fc_prli_sent)
3412 goto finished;
3413 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3414 goto finished;
3415 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3416 goto finished;
3417
3418 stat = 1;
3419
3420 finished:
3421 spin_unlock_irq(shost->host_lock);
3422 return stat;
3423 }
3424
3425 /**
3426 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3427 * @shost: pointer to SCSI host data structure.
3428 *
3429 * This routine initializes a given SCSI host attributes on a FC port. The
3430 * SCSI host can be either on top of a physical port or a virtual port.
3431 **/
lpfc_host_attrib_init(struct Scsi_Host * shost)3432 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3433 {
3434 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3435 struct lpfc_hba *phba = vport->phba;
3436 /*
3437 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
3438 */
3439
3440 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3441 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3442 fc_host_supported_classes(shost) = FC_COS_CLASS3;
3443
3444 memset(fc_host_supported_fc4s(shost), 0,
3445 sizeof(fc_host_supported_fc4s(shost)));
3446 fc_host_supported_fc4s(shost)[2] = 1;
3447 fc_host_supported_fc4s(shost)[7] = 1;
3448
3449 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3450 sizeof fc_host_symbolic_name(shost));
3451
3452 fc_host_supported_speeds(shost) = 0;
3453 if (phba->lmt & LMT_16Gb)
3454 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3455 if (phba->lmt & LMT_10Gb)
3456 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3457 if (phba->lmt & LMT_8Gb)
3458 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3459 if (phba->lmt & LMT_4Gb)
3460 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3461 if (phba->lmt & LMT_2Gb)
3462 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3463 if (phba->lmt & LMT_1Gb)
3464 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3465
3466 fc_host_maxframe_size(shost) =
3467 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3468 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3469
3470 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3471
3472 /* This value is also unchanging */
3473 memset(fc_host_active_fc4s(shost), 0,
3474 sizeof(fc_host_active_fc4s(shost)));
3475 fc_host_active_fc4s(shost)[2] = 1;
3476 fc_host_active_fc4s(shost)[7] = 1;
3477
3478 fc_host_max_npiv_vports(shost) = phba->max_vpi;
3479 spin_lock_irq(shost->host_lock);
3480 vport->load_flag &= ~FC_LOADING;
3481 spin_unlock_irq(shost->host_lock);
3482 }
3483
3484 /**
3485 * lpfc_stop_port_s3 - Stop SLI3 device port
3486 * @phba: pointer to lpfc hba data structure.
3487 *
3488 * This routine is invoked to stop an SLI3 device port, it stops the device
3489 * from generating interrupts and stops the device driver's timers for the
3490 * device.
3491 **/
3492 static void
lpfc_stop_port_s3(struct lpfc_hba * phba)3493 lpfc_stop_port_s3(struct lpfc_hba *phba)
3494 {
3495 /* Clear all interrupt enable conditions */
3496 writel(0, phba->HCregaddr);
3497 readl(phba->HCregaddr); /* flush */
3498 /* Clear all pending interrupts */
3499 writel(0xffffffff, phba->HAregaddr);
3500 readl(phba->HAregaddr); /* flush */
3501
3502 /* Reset some HBA SLI setup states */
3503 lpfc_stop_hba_timers(phba);
3504 phba->pport->work_port_events = 0;
3505 }
3506
3507 /**
3508 * lpfc_stop_port_s4 - Stop SLI4 device port
3509 * @phba: pointer to lpfc hba data structure.
3510 *
3511 * This routine is invoked to stop an SLI4 device port, it stops the device
3512 * from generating interrupts and stops the device driver's timers for the
3513 * device.
3514 **/
3515 static void
lpfc_stop_port_s4(struct lpfc_hba * phba)3516 lpfc_stop_port_s4(struct lpfc_hba *phba)
3517 {
3518 /* Reset some HBA SLI4 setup states */
3519 lpfc_stop_hba_timers(phba);
3520 phba->pport->work_port_events = 0;
3521 phba->sli4_hba.intr_enable = 0;
3522 }
3523
3524 /**
3525 * lpfc_stop_port - Wrapper function for stopping hba port
3526 * @phba: Pointer to HBA context object.
3527 *
3528 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3529 * the API jump table function pointer from the lpfc_hba struct.
3530 **/
3531 void
lpfc_stop_port(struct lpfc_hba * phba)3532 lpfc_stop_port(struct lpfc_hba *phba)
3533 {
3534 phba->lpfc_stop_port(phba);
3535 }
3536
3537 /**
3538 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3539 * @phba: Pointer to hba for which this call is being executed.
3540 *
3541 * This routine starts the timer waiting for the FCF rediscovery to complete.
3542 **/
3543 void
lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba * phba)3544 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3545 {
3546 unsigned long fcf_redisc_wait_tmo =
3547 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3548 /* Start fcf rediscovery wait period timer */
3549 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3550 spin_lock_irq(&phba->hbalock);
3551 /* Allow action to new fcf asynchronous event */
3552 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3553 /* Mark the FCF rediscovery pending state */
3554 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3555 spin_unlock_irq(&phba->hbalock);
3556 }
3557
3558 /**
3559 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3560 * @ptr: Map to lpfc_hba data structure pointer.
3561 *
3562 * This routine is invoked when waiting for FCF table rediscover has been
3563 * timed out. If new FCF record(s) has (have) been discovered during the
3564 * wait period, a new FCF event shall be added to the FCOE async event
3565 * list, and then worker thread shall be waked up for processing from the
3566 * worker thread context.
3567 **/
3568 static void
lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)3569 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3570 {
3571 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3572
3573 /* Don't send FCF rediscovery event if timer cancelled */
3574 spin_lock_irq(&phba->hbalock);
3575 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3576 spin_unlock_irq(&phba->hbalock);
3577 return;
3578 }
3579 /* Clear FCF rediscovery timer pending flag */
3580 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3581 /* FCF rediscovery event to worker thread */
3582 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3583 spin_unlock_irq(&phba->hbalock);
3584 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3585 "2776 FCF rediscover quiescent timer expired\n");
3586 /* wake up worker thread */
3587 lpfc_worker_wake_up(phba);
3588 }
3589
3590 /**
3591 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3592 * @phba: pointer to lpfc hba data structure.
3593 * @acqe_link: pointer to the async link completion queue entry.
3594 *
3595 * This routine is to parse the SLI4 link-attention link fault code and
3596 * translate it into the base driver's read link attention mailbox command
3597 * status.
3598 *
3599 * Return: Link-attention status in terms of base driver's coding.
3600 **/
3601 static uint16_t
lpfc_sli4_parse_latt_fault(struct lpfc_hba * phba,struct lpfc_acqe_link * acqe_link)3602 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3603 struct lpfc_acqe_link *acqe_link)
3604 {
3605 uint16_t latt_fault;
3606
3607 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3608 case LPFC_ASYNC_LINK_FAULT_NONE:
3609 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3610 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3611 latt_fault = 0;
3612 break;
3613 default:
3614 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3615 "0398 Invalid link fault code: x%x\n",
3616 bf_get(lpfc_acqe_link_fault, acqe_link));
3617 latt_fault = MBXERR_ERROR;
3618 break;
3619 }
3620 return latt_fault;
3621 }
3622
3623 /**
3624 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3625 * @phba: pointer to lpfc hba data structure.
3626 * @acqe_link: pointer to the async link completion queue entry.
3627 *
3628 * This routine is to parse the SLI4 link attention type and translate it
3629 * into the base driver's link attention type coding.
3630 *
3631 * Return: Link attention type in terms of base driver's coding.
3632 **/
3633 static uint8_t
lpfc_sli4_parse_latt_type(struct lpfc_hba * phba,struct lpfc_acqe_link * acqe_link)3634 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3635 struct lpfc_acqe_link *acqe_link)
3636 {
3637 uint8_t att_type;
3638
3639 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3640 case LPFC_ASYNC_LINK_STATUS_DOWN:
3641 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3642 att_type = LPFC_ATT_LINK_DOWN;
3643 break;
3644 case LPFC_ASYNC_LINK_STATUS_UP:
3645 /* Ignore physical link up events - wait for logical link up */
3646 att_type = LPFC_ATT_RESERVED;
3647 break;
3648 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3649 att_type = LPFC_ATT_LINK_UP;
3650 break;
3651 default:
3652 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3653 "0399 Invalid link attention type: x%x\n",
3654 bf_get(lpfc_acqe_link_status, acqe_link));
3655 att_type = LPFC_ATT_RESERVED;
3656 break;
3657 }
3658 return att_type;
3659 }
3660
3661 /**
3662 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3663 * @phba: pointer to lpfc hba data structure.
3664 * @acqe_link: pointer to the async link completion queue entry.
3665 *
3666 * This routine is to parse the SLI4 link-attention link speed and translate
3667 * it into the base driver's link-attention link speed coding.
3668 *
3669 * Return: Link-attention link speed in terms of base driver's coding.
3670 **/
3671 static uint8_t
lpfc_sli4_parse_latt_link_speed(struct lpfc_hba * phba,struct lpfc_acqe_link * acqe_link)3672 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3673 struct lpfc_acqe_link *acqe_link)
3674 {
3675 uint8_t link_speed;
3676
3677 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3678 case LPFC_ASYNC_LINK_SPEED_ZERO:
3679 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3680 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3681 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3682 break;
3683 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3684 link_speed = LPFC_LINK_SPEED_1GHZ;
3685 break;
3686 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3687 link_speed = LPFC_LINK_SPEED_10GHZ;
3688 break;
3689 default:
3690 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3691 "0483 Invalid link-attention link speed: x%x\n",
3692 bf_get(lpfc_acqe_link_speed, acqe_link));
3693 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3694 break;
3695 }
3696 return link_speed;
3697 }
3698
3699 /**
3700 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3701 * @phba: pointer to lpfc hba data structure.
3702 *
3703 * This routine is to get an SLI3 FC port's link speed in Mbps.
3704 *
3705 * Return: link speed in terms of Mbps.
3706 **/
3707 uint32_t
lpfc_sli_port_speed_get(struct lpfc_hba * phba)3708 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3709 {
3710 uint32_t link_speed;
3711
3712 if (!lpfc_is_link_up(phba))
3713 return 0;
3714
3715 switch (phba->fc_linkspeed) {
3716 case LPFC_LINK_SPEED_1GHZ:
3717 link_speed = 1000;
3718 break;
3719 case LPFC_LINK_SPEED_2GHZ:
3720 link_speed = 2000;
3721 break;
3722 case LPFC_LINK_SPEED_4GHZ:
3723 link_speed = 4000;
3724 break;
3725 case LPFC_LINK_SPEED_8GHZ:
3726 link_speed = 8000;
3727 break;
3728 case LPFC_LINK_SPEED_10GHZ:
3729 link_speed = 10000;
3730 break;
3731 case LPFC_LINK_SPEED_16GHZ:
3732 link_speed = 16000;
3733 break;
3734 default:
3735 link_speed = 0;
3736 }
3737 return link_speed;
3738 }
3739
3740 /**
3741 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3742 * @phba: pointer to lpfc hba data structure.
3743 * @evt_code: asynchronous event code.
3744 * @speed_code: asynchronous event link speed code.
3745 *
3746 * This routine is to parse the giving SLI4 async event link speed code into
3747 * value of Mbps for the link speed.
3748 *
3749 * Return: link speed in terms of Mbps.
3750 **/
3751 static uint32_t
lpfc_sli4_port_speed_parse(struct lpfc_hba * phba,uint32_t evt_code,uint8_t speed_code)3752 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3753 uint8_t speed_code)
3754 {
3755 uint32_t port_speed;
3756
3757 switch (evt_code) {
3758 case LPFC_TRAILER_CODE_LINK:
3759 switch (speed_code) {
3760 case LPFC_EVT_CODE_LINK_NO_LINK:
3761 port_speed = 0;
3762 break;
3763 case LPFC_EVT_CODE_LINK_10_MBIT:
3764 port_speed = 10;
3765 break;
3766 case LPFC_EVT_CODE_LINK_100_MBIT:
3767 port_speed = 100;
3768 break;
3769 case LPFC_EVT_CODE_LINK_1_GBIT:
3770 port_speed = 1000;
3771 break;
3772 case LPFC_EVT_CODE_LINK_10_GBIT:
3773 port_speed = 10000;
3774 break;
3775 default:
3776 port_speed = 0;
3777 }
3778 break;
3779 case LPFC_TRAILER_CODE_FC:
3780 switch (speed_code) {
3781 case LPFC_EVT_CODE_FC_NO_LINK:
3782 port_speed = 0;
3783 break;
3784 case LPFC_EVT_CODE_FC_1_GBAUD:
3785 port_speed = 1000;
3786 break;
3787 case LPFC_EVT_CODE_FC_2_GBAUD:
3788 port_speed = 2000;
3789 break;
3790 case LPFC_EVT_CODE_FC_4_GBAUD:
3791 port_speed = 4000;
3792 break;
3793 case LPFC_EVT_CODE_FC_8_GBAUD:
3794 port_speed = 8000;
3795 break;
3796 case LPFC_EVT_CODE_FC_10_GBAUD:
3797 port_speed = 10000;
3798 break;
3799 case LPFC_EVT_CODE_FC_16_GBAUD:
3800 port_speed = 16000;
3801 break;
3802 default:
3803 port_speed = 0;
3804 }
3805 break;
3806 default:
3807 port_speed = 0;
3808 }
3809 return port_speed;
3810 }
3811
3812 /**
3813 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3814 * @phba: pointer to lpfc hba data structure.
3815 * @acqe_link: pointer to the async link completion queue entry.
3816 *
3817 * This routine is to handle the SLI4 asynchronous FCoE link event.
3818 **/
3819 static void
lpfc_sli4_async_link_evt(struct lpfc_hba * phba,struct lpfc_acqe_link * acqe_link)3820 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3821 struct lpfc_acqe_link *acqe_link)
3822 {
3823 struct lpfc_dmabuf *mp;
3824 LPFC_MBOXQ_t *pmb;
3825 MAILBOX_t *mb;
3826 struct lpfc_mbx_read_top *la;
3827 uint8_t att_type;
3828 int rc;
3829
3830 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3831 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3832 return;
3833 phba->fcoe_eventtag = acqe_link->event_tag;
3834 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3835 if (!pmb) {
3836 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3837 "0395 The mboxq allocation failed\n");
3838 return;
3839 }
3840 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3841 if (!mp) {
3842 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3843 "0396 The lpfc_dmabuf allocation failed\n");
3844 goto out_free_pmb;
3845 }
3846 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3847 if (!mp->virt) {
3848 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3849 "0397 The mbuf allocation failed\n");
3850 goto out_free_dmabuf;
3851 }
3852
3853 /* Cleanup any outstanding ELS commands */
3854 lpfc_els_flush_all_cmd(phba);
3855
3856 /* Block ELS IOCBs until we have done process link event */
3857 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3858
3859 /* Update link event statistics */
3860 phba->sli.slistat.link_event++;
3861
3862 /* Create lpfc_handle_latt mailbox command from link ACQE */
3863 lpfc_read_topology(phba, pmb, mp);
3864 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3865 pmb->vport = phba->pport;
3866
3867 /* Keep the link status for extra SLI4 state machine reference */
3868 phba->sli4_hba.link_state.speed =
3869 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3870 bf_get(lpfc_acqe_link_speed, acqe_link));
3871 phba->sli4_hba.link_state.duplex =
3872 bf_get(lpfc_acqe_link_duplex, acqe_link);
3873 phba->sli4_hba.link_state.status =
3874 bf_get(lpfc_acqe_link_status, acqe_link);
3875 phba->sli4_hba.link_state.type =
3876 bf_get(lpfc_acqe_link_type, acqe_link);
3877 phba->sli4_hba.link_state.number =
3878 bf_get(lpfc_acqe_link_number, acqe_link);
3879 phba->sli4_hba.link_state.fault =
3880 bf_get(lpfc_acqe_link_fault, acqe_link);
3881 phba->sli4_hba.link_state.logical_speed =
3882 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3883
3884 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3885 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3886 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3887 "Logical speed:%dMbps Fault:%d\n",
3888 phba->sli4_hba.link_state.speed,
3889 phba->sli4_hba.link_state.topology,
3890 phba->sli4_hba.link_state.status,
3891 phba->sli4_hba.link_state.type,
3892 phba->sli4_hba.link_state.number,
3893 phba->sli4_hba.link_state.logical_speed,
3894 phba->sli4_hba.link_state.fault);
3895 /*
3896 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3897 * topology info. Note: Optional for non FC-AL ports.
3898 */
3899 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3900 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3901 if (rc == MBX_NOT_FINISHED)
3902 goto out_free_dmabuf;
3903 return;
3904 }
3905 /*
3906 * For FCoE Mode: fill in all the topology information we need and call
3907 * the READ_TOPOLOGY completion routine to continue without actually
3908 * sending the READ_TOPOLOGY mailbox command to the port.
3909 */
3910 /* Parse and translate status field */
3911 mb = &pmb->u.mb;
3912 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3913
3914 /* Parse and translate link attention fields */
3915 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3916 la->eventTag = acqe_link->event_tag;
3917 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3918 bf_set(lpfc_mbx_read_top_link_spd, la,
3919 lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3920
3921 /* Fake the the following irrelvant fields */
3922 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3923 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3924 bf_set(lpfc_mbx_read_top_il, la, 0);
3925 bf_set(lpfc_mbx_read_top_pb, la, 0);
3926 bf_set(lpfc_mbx_read_top_fa, la, 0);
3927 bf_set(lpfc_mbx_read_top_mm, la, 0);
3928
3929 /* Invoke the lpfc_handle_latt mailbox command callback function */
3930 lpfc_mbx_cmpl_read_topology(phba, pmb);
3931
3932 return;
3933
3934 out_free_dmabuf:
3935 kfree(mp);
3936 out_free_pmb:
3937 mempool_free(pmb, phba->mbox_mem_pool);
3938 }
3939
3940 /**
3941 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3942 * @phba: pointer to lpfc hba data structure.
3943 * @acqe_fc: pointer to the async fc completion queue entry.
3944 *
3945 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3946 * that the event was received and then issue a read_topology mailbox command so
3947 * that the rest of the driver will treat it the same as SLI3.
3948 **/
3949 static void
lpfc_sli4_async_fc_evt(struct lpfc_hba * phba,struct lpfc_acqe_fc_la * acqe_fc)3950 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3951 {
3952 struct lpfc_dmabuf *mp;
3953 LPFC_MBOXQ_t *pmb;
3954 int rc;
3955
3956 if (bf_get(lpfc_trailer_type, acqe_fc) !=
3957 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3958 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3959 "2895 Non FC link Event detected.(%d)\n",
3960 bf_get(lpfc_trailer_type, acqe_fc));
3961 return;
3962 }
3963 /* Keep the link status for extra SLI4 state machine reference */
3964 phba->sli4_hba.link_state.speed =
3965 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
3966 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
3967 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3968 phba->sli4_hba.link_state.topology =
3969 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3970 phba->sli4_hba.link_state.status =
3971 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3972 phba->sli4_hba.link_state.type =
3973 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3974 phba->sli4_hba.link_state.number =
3975 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3976 phba->sli4_hba.link_state.fault =
3977 bf_get(lpfc_acqe_link_fault, acqe_fc);
3978 phba->sli4_hba.link_state.logical_speed =
3979 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
3980 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3981 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3982 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3983 "%dMbps Fault:%d\n",
3984 phba->sli4_hba.link_state.speed,
3985 phba->sli4_hba.link_state.topology,
3986 phba->sli4_hba.link_state.status,
3987 phba->sli4_hba.link_state.type,
3988 phba->sli4_hba.link_state.number,
3989 phba->sli4_hba.link_state.logical_speed,
3990 phba->sli4_hba.link_state.fault);
3991 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3992 if (!pmb) {
3993 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3994 "2897 The mboxq allocation failed\n");
3995 return;
3996 }
3997 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3998 if (!mp) {
3999 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4000 "2898 The lpfc_dmabuf allocation failed\n");
4001 goto out_free_pmb;
4002 }
4003 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4004 if (!mp->virt) {
4005 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4006 "2899 The mbuf allocation failed\n");
4007 goto out_free_dmabuf;
4008 }
4009
4010 /* Cleanup any outstanding ELS commands */
4011 lpfc_els_flush_all_cmd(phba);
4012
4013 /* Block ELS IOCBs until we have done process link event */
4014 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4015
4016 /* Update link event statistics */
4017 phba->sli.slistat.link_event++;
4018
4019 /* Create lpfc_handle_latt mailbox command from link ACQE */
4020 lpfc_read_topology(phba, pmb, mp);
4021 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4022 pmb->vport = phba->pport;
4023
4024 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4025 if (rc == MBX_NOT_FINISHED)
4026 goto out_free_dmabuf;
4027 return;
4028
4029 out_free_dmabuf:
4030 kfree(mp);
4031 out_free_pmb:
4032 mempool_free(pmb, phba->mbox_mem_pool);
4033 }
4034
4035 /**
4036 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4037 * @phba: pointer to lpfc hba data structure.
4038 * @acqe_fc: pointer to the async SLI completion queue entry.
4039 *
4040 * This routine is to handle the SLI4 asynchronous SLI events.
4041 **/
4042 static void
lpfc_sli4_async_sli_evt(struct lpfc_hba * phba,struct lpfc_acqe_sli * acqe_sli)4043 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4044 {
4045 char port_name;
4046 char message[128];
4047 uint8_t status;
4048 struct lpfc_acqe_misconfigured_event *misconfigured;
4049
4050 /* special case misconfigured event as it contains data for all ports */
4051 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
4052 LPFC_SLI_INTF_IF_TYPE_2) ||
4053 (bf_get(lpfc_trailer_type, acqe_sli) !=
4054 LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) {
4055 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4056 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4057 "x%08x SLI Event Type:%d\n",
4058 acqe_sli->event_data1, acqe_sli->event_data2,
4059 bf_get(lpfc_trailer_type, acqe_sli));
4060 return;
4061 }
4062
4063 port_name = phba->Port[0];
4064 if (port_name == 0x00)
4065 port_name = '?'; /* get port name is empty */
4066
4067 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4068 &acqe_sli->event_data1;
4069
4070 /* fetch the status for this port */
4071 switch (phba->sli4_hba.lnk_info.lnk_no) {
4072 case LPFC_LINK_NUMBER_0:
4073 status = bf_get(lpfc_sli_misconfigured_port0,
4074 &misconfigured->theEvent);
4075 break;
4076 case LPFC_LINK_NUMBER_1:
4077 status = bf_get(lpfc_sli_misconfigured_port1,
4078 &misconfigured->theEvent);
4079 break;
4080 case LPFC_LINK_NUMBER_2:
4081 status = bf_get(lpfc_sli_misconfigured_port2,
4082 &misconfigured->theEvent);
4083 break;
4084 case LPFC_LINK_NUMBER_3:
4085 status = bf_get(lpfc_sli_misconfigured_port3,
4086 &misconfigured->theEvent);
4087 break;
4088 default:
4089 status = ~LPFC_SLI_EVENT_STATUS_VALID;
4090 break;
4091 }
4092
4093 switch (status) {
4094 case LPFC_SLI_EVENT_STATUS_VALID:
4095 return; /* no message if the sfp is okay */
4096 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4097 sprintf(message, "Optics faulted/incorrectly installed/not " \
4098 "installed - Reseat optics, if issue not "
4099 "resolved, replace.");
4100 break;
4101 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4102 sprintf(message,
4103 "Optics of two types installed - Remove one optic or " \
4104 "install matching pair of optics.");
4105 break;
4106 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4107 sprintf(message, "Incompatible optics - Replace with " \
4108 "compatible optics for card to function.");
4109 break;
4110 default:
4111 /* firmware is reporting a status we don't know about */
4112 sprintf(message, "Unknown event status x%02x", status);
4113 break;
4114 }
4115
4116 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4117 "3176 Misconfigured Physical Port - "
4118 "Port Name %c %s\n", port_name, message);
4119 }
4120
4121 /**
4122 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4123 * @vport: pointer to vport data structure.
4124 *
4125 * This routine is to perform Clear Virtual Link (CVL) on a vport in
4126 * response to a CVL event.
4127 *
4128 * Return the pointer to the ndlp with the vport if successful, otherwise
4129 * return NULL.
4130 **/
4131 static struct lpfc_nodelist *
lpfc_sli4_perform_vport_cvl(struct lpfc_vport * vport)4132 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4133 {
4134 struct lpfc_nodelist *ndlp;
4135 struct Scsi_Host *shost;
4136 struct lpfc_hba *phba;
4137
4138 if (!vport)
4139 return NULL;
4140 phba = vport->phba;
4141 if (!phba)
4142 return NULL;
4143 ndlp = lpfc_findnode_did(vport, Fabric_DID);
4144 if (!ndlp) {
4145 /* Cannot find existing Fabric ndlp, so allocate a new one */
4146 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4147 if (!ndlp)
4148 return 0;
4149 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4150 /* Set the node type */
4151 ndlp->nlp_type |= NLP_FABRIC;
4152 /* Put ndlp onto node list */
4153 lpfc_enqueue_node(vport, ndlp);
4154 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4155 /* re-setup ndlp without removing from node list */
4156 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4157 if (!ndlp)
4158 return 0;
4159 }
4160 if ((phba->pport->port_state < LPFC_FLOGI) &&
4161 (phba->pport->port_state != LPFC_VPORT_FAILED))
4162 return NULL;
4163 /* If virtual link is not yet instantiated ignore CVL */
4164 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4165 && (vport->port_state != LPFC_VPORT_FAILED))
4166 return NULL;
4167 shost = lpfc_shost_from_vport(vport);
4168 if (!shost)
4169 return NULL;
4170 lpfc_linkdown_port(vport);
4171 lpfc_cleanup_pending_mbox(vport);
4172 spin_lock_irq(shost->host_lock);
4173 vport->fc_flag |= FC_VPORT_CVL_RCVD;
4174 spin_unlock_irq(shost->host_lock);
4175
4176 return ndlp;
4177 }
4178
4179 /**
4180 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4181 * @vport: pointer to lpfc hba data structure.
4182 *
4183 * This routine is to perform Clear Virtual Link (CVL) on all vports in
4184 * response to a FCF dead event.
4185 **/
4186 static void
lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba * phba)4187 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4188 {
4189 struct lpfc_vport **vports;
4190 int i;
4191
4192 vports = lpfc_create_vport_work_array(phba);
4193 if (vports)
4194 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4195 lpfc_sli4_perform_vport_cvl(vports[i]);
4196 lpfc_destroy_vport_work_array(phba, vports);
4197 }
4198
4199 /**
4200 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4201 * @phba: pointer to lpfc hba data structure.
4202 * @acqe_link: pointer to the async fcoe completion queue entry.
4203 *
4204 * This routine is to handle the SLI4 asynchronous fcoe event.
4205 **/
4206 static void
lpfc_sli4_async_fip_evt(struct lpfc_hba * phba,struct lpfc_acqe_fip * acqe_fip)4207 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4208 struct lpfc_acqe_fip *acqe_fip)
4209 {
4210 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4211 int rc;
4212 struct lpfc_vport *vport;
4213 struct lpfc_nodelist *ndlp;
4214 struct Scsi_Host *shost;
4215 int active_vlink_present;
4216 struct lpfc_vport **vports;
4217 int i;
4218
4219 phba->fc_eventTag = acqe_fip->event_tag;
4220 phba->fcoe_eventtag = acqe_fip->event_tag;
4221 switch (event_type) {
4222 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4223 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4224 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4225 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4226 LOG_DISCOVERY,
4227 "2546 New FCF event, evt_tag:x%x, "
4228 "index:x%x\n",
4229 acqe_fip->event_tag,
4230 acqe_fip->index);
4231 else
4232 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4233 LOG_DISCOVERY,
4234 "2788 FCF param modified event, "
4235 "evt_tag:x%x, index:x%x\n",
4236 acqe_fip->event_tag,
4237 acqe_fip->index);
4238 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4239 /*
4240 * During period of FCF discovery, read the FCF
4241 * table record indexed by the event to update
4242 * FCF roundrobin failover eligible FCF bmask.
4243 */
4244 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4245 LOG_DISCOVERY,
4246 "2779 Read FCF (x%x) for updating "
4247 "roundrobin FCF failover bmask\n",
4248 acqe_fip->index);
4249 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4250 }
4251
4252 /* If the FCF discovery is in progress, do nothing. */
4253 spin_lock_irq(&phba->hbalock);
4254 if (phba->hba_flag & FCF_TS_INPROG) {
4255 spin_unlock_irq(&phba->hbalock);
4256 break;
4257 }
4258 /* If fast FCF failover rescan event is pending, do nothing */
4259 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4260 spin_unlock_irq(&phba->hbalock);
4261 break;
4262 }
4263
4264 /* If the FCF has been in discovered state, do nothing. */
4265 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4266 spin_unlock_irq(&phba->hbalock);
4267 break;
4268 }
4269 spin_unlock_irq(&phba->hbalock);
4270
4271 /* Otherwise, scan the entire FCF table and re-discover SAN */
4272 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4273 "2770 Start FCF table scan per async FCF "
4274 "event, evt_tag:x%x, index:x%x\n",
4275 acqe_fip->event_tag, acqe_fip->index);
4276 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4277 LPFC_FCOE_FCF_GET_FIRST);
4278 if (rc)
4279 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4280 "2547 Issue FCF scan read FCF mailbox "
4281 "command failed (x%x)\n", rc);
4282 break;
4283
4284 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4285 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4286 "2548 FCF Table full count 0x%x tag 0x%x\n",
4287 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4288 acqe_fip->event_tag);
4289 break;
4290
4291 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4292 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4293 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4294 "2549 FCF (x%x) disconnected from network, "
4295 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4296 /*
4297 * If we are in the middle of FCF failover process, clear
4298 * the corresponding FCF bit in the roundrobin bitmap.
4299 */
4300 spin_lock_irq(&phba->hbalock);
4301 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4302 spin_unlock_irq(&phba->hbalock);
4303 /* Update FLOGI FCF failover eligible FCF bmask */
4304 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4305 break;
4306 }
4307 spin_unlock_irq(&phba->hbalock);
4308
4309 /* If the event is not for currently used fcf do nothing */
4310 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4311 break;
4312
4313 /*
4314 * Otherwise, request the port to rediscover the entire FCF
4315 * table for a fast recovery from case that the current FCF
4316 * is no longer valid as we are not in the middle of FCF
4317 * failover process already.
4318 */
4319 spin_lock_irq(&phba->hbalock);
4320 /* Mark the fast failover process in progress */
4321 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4322 spin_unlock_irq(&phba->hbalock);
4323
4324 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4325 "2771 Start FCF fast failover process due to "
4326 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4327 "\n", acqe_fip->event_tag, acqe_fip->index);
4328 rc = lpfc_sli4_redisc_fcf_table(phba);
4329 if (rc) {
4330 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4331 LOG_DISCOVERY,
4332 "2772 Issue FCF rediscover mabilbox "
4333 "command failed, fail through to FCF "
4334 "dead event\n");
4335 spin_lock_irq(&phba->hbalock);
4336 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4337 spin_unlock_irq(&phba->hbalock);
4338 /*
4339 * Last resort will fail over by treating this
4340 * as a link down to FCF registration.
4341 */
4342 lpfc_sli4_fcf_dead_failthrough(phba);
4343 } else {
4344 /* Reset FCF roundrobin bmask for new discovery */
4345 lpfc_sli4_clear_fcf_rr_bmask(phba);
4346 /*
4347 * Handling fast FCF failover to a DEAD FCF event is
4348 * considered equalivant to receiving CVL to all vports.
4349 */
4350 lpfc_sli4_perform_all_vport_cvl(phba);
4351 }
4352 break;
4353 case LPFC_FIP_EVENT_TYPE_CVL:
4354 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4355 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4356 "2718 Clear Virtual Link Received for VPI 0x%x"
4357 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4358
4359 vport = lpfc_find_vport_by_vpid(phba,
4360 acqe_fip->index);
4361 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4362 if (!ndlp)
4363 break;
4364 active_vlink_present = 0;
4365
4366 vports = lpfc_create_vport_work_array(phba);
4367 if (vports) {
4368 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4369 i++) {
4370 if ((!(vports[i]->fc_flag &
4371 FC_VPORT_CVL_RCVD)) &&
4372 (vports[i]->port_state > LPFC_FDISC)) {
4373 active_vlink_present = 1;
4374 break;
4375 }
4376 }
4377 lpfc_destroy_vport_work_array(phba, vports);
4378 }
4379
4380 if (active_vlink_present) {
4381 /*
4382 * If there are other active VLinks present,
4383 * re-instantiate the Vlink using FDISC.
4384 */
4385 mod_timer(&ndlp->nlp_delayfunc,
4386 jiffies + msecs_to_jiffies(1000));
4387 shost = lpfc_shost_from_vport(vport);
4388 spin_lock_irq(shost->host_lock);
4389 ndlp->nlp_flag |= NLP_DELAY_TMO;
4390 spin_unlock_irq(shost->host_lock);
4391 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4392 vport->port_state = LPFC_FDISC;
4393 } else {
4394 /*
4395 * Otherwise, we request port to rediscover
4396 * the entire FCF table for a fast recovery
4397 * from possible case that the current FCF
4398 * is no longer valid if we are not already
4399 * in the FCF failover process.
4400 */
4401 spin_lock_irq(&phba->hbalock);
4402 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4403 spin_unlock_irq(&phba->hbalock);
4404 break;
4405 }
4406 /* Mark the fast failover process in progress */
4407 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4408 spin_unlock_irq(&phba->hbalock);
4409 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4410 LOG_DISCOVERY,
4411 "2773 Start FCF failover per CVL, "
4412 "evt_tag:x%x\n", acqe_fip->event_tag);
4413 rc = lpfc_sli4_redisc_fcf_table(phba);
4414 if (rc) {
4415 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4416 LOG_DISCOVERY,
4417 "2774 Issue FCF rediscover "
4418 "mabilbox command failed, "
4419 "through to CVL event\n");
4420 spin_lock_irq(&phba->hbalock);
4421 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4422 spin_unlock_irq(&phba->hbalock);
4423 /*
4424 * Last resort will be re-try on the
4425 * the current registered FCF entry.
4426 */
4427 lpfc_retry_pport_discovery(phba);
4428 } else
4429 /*
4430 * Reset FCF roundrobin bmask for new
4431 * discovery.
4432 */
4433 lpfc_sli4_clear_fcf_rr_bmask(phba);
4434 }
4435 break;
4436 default:
4437 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4438 "0288 Unknown FCoE event type 0x%x event tag "
4439 "0x%x\n", event_type, acqe_fip->event_tag);
4440 break;
4441 }
4442 }
4443
4444 /**
4445 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4446 * @phba: pointer to lpfc hba data structure.
4447 * @acqe_link: pointer to the async dcbx completion queue entry.
4448 *
4449 * This routine is to handle the SLI4 asynchronous dcbx event.
4450 **/
4451 static void
lpfc_sli4_async_dcbx_evt(struct lpfc_hba * phba,struct lpfc_acqe_dcbx * acqe_dcbx)4452 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4453 struct lpfc_acqe_dcbx *acqe_dcbx)
4454 {
4455 phba->fc_eventTag = acqe_dcbx->event_tag;
4456 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4457 "0290 The SLI4 DCBX asynchronous event is not "
4458 "handled yet\n");
4459 }
4460
4461 /**
4462 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4463 * @phba: pointer to lpfc hba data structure.
4464 * @acqe_link: pointer to the async grp5 completion queue entry.
4465 *
4466 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4467 * is an asynchronous notified of a logical link speed change. The Port
4468 * reports the logical link speed in units of 10Mbps.
4469 **/
4470 static void
lpfc_sli4_async_grp5_evt(struct lpfc_hba * phba,struct lpfc_acqe_grp5 * acqe_grp5)4471 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4472 struct lpfc_acqe_grp5 *acqe_grp5)
4473 {
4474 uint16_t prev_ll_spd;
4475
4476 phba->fc_eventTag = acqe_grp5->event_tag;
4477 phba->fcoe_eventtag = acqe_grp5->event_tag;
4478 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4479 phba->sli4_hba.link_state.logical_speed =
4480 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4481 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4482 "2789 GRP5 Async Event: Updating logical link speed "
4483 "from %dMbps to %dMbps\n", prev_ll_spd,
4484 phba->sli4_hba.link_state.logical_speed);
4485 }
4486
4487 /**
4488 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4489 * @phba: pointer to lpfc hba data structure.
4490 *
4491 * This routine is invoked by the worker thread to process all the pending
4492 * SLI4 asynchronous events.
4493 **/
lpfc_sli4_async_event_proc(struct lpfc_hba * phba)4494 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4495 {
4496 struct lpfc_cq_event *cq_event;
4497
4498 /* First, declare the async event has been handled */
4499 spin_lock_irq(&phba->hbalock);
4500 phba->hba_flag &= ~ASYNC_EVENT;
4501 spin_unlock_irq(&phba->hbalock);
4502 /* Now, handle all the async events */
4503 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4504 /* Get the first event from the head of the event queue */
4505 spin_lock_irq(&phba->hbalock);
4506 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4507 cq_event, struct lpfc_cq_event, list);
4508 spin_unlock_irq(&phba->hbalock);
4509 /* Process the asynchronous event */
4510 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4511 case LPFC_TRAILER_CODE_LINK:
4512 lpfc_sli4_async_link_evt(phba,
4513 &cq_event->cqe.acqe_link);
4514 break;
4515 case LPFC_TRAILER_CODE_FCOE:
4516 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4517 break;
4518 case LPFC_TRAILER_CODE_DCBX:
4519 lpfc_sli4_async_dcbx_evt(phba,
4520 &cq_event->cqe.acqe_dcbx);
4521 break;
4522 case LPFC_TRAILER_CODE_GRP5:
4523 lpfc_sli4_async_grp5_evt(phba,
4524 &cq_event->cqe.acqe_grp5);
4525 break;
4526 case LPFC_TRAILER_CODE_FC:
4527 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4528 break;
4529 case LPFC_TRAILER_CODE_SLI:
4530 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4531 break;
4532 default:
4533 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4534 "1804 Invalid asynchrous event code: "
4535 "x%x\n", bf_get(lpfc_trailer_code,
4536 &cq_event->cqe.mcqe_cmpl));
4537 break;
4538 }
4539 /* Free the completion event processed to the free pool */
4540 lpfc_sli4_cq_event_release(phba, cq_event);
4541 }
4542 }
4543
4544 /**
4545 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4546 * @phba: pointer to lpfc hba data structure.
4547 *
4548 * This routine is invoked by the worker thread to process FCF table
4549 * rediscovery pending completion event.
4550 **/
lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba * phba)4551 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4552 {
4553 int rc;
4554
4555 spin_lock_irq(&phba->hbalock);
4556 /* Clear FCF rediscovery timeout event */
4557 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4558 /* Clear driver fast failover FCF record flag */
4559 phba->fcf.failover_rec.flag = 0;
4560 /* Set state for FCF fast failover */
4561 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4562 spin_unlock_irq(&phba->hbalock);
4563
4564 /* Scan FCF table from the first entry to re-discover SAN */
4565 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4566 "2777 Start post-quiescent FCF table scan\n");
4567 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4568 if (rc)
4569 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4570 "2747 Issue FCF scan read FCF mailbox "
4571 "command failed 0x%x\n", rc);
4572 }
4573
4574 /**
4575 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4576 * @phba: pointer to lpfc hba data structure.
4577 * @dev_grp: The HBA PCI-Device group number.
4578 *
4579 * This routine is invoked to set up the per HBA PCI-Device group function
4580 * API jump table entries.
4581 *
4582 * Return: 0 if success, otherwise -ENODEV
4583 **/
4584 int
lpfc_api_table_setup(struct lpfc_hba * phba,uint8_t dev_grp)4585 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4586 {
4587 int rc;
4588
4589 /* Set up lpfc PCI-device group */
4590 phba->pci_dev_grp = dev_grp;
4591
4592 /* The LPFC_PCI_DEV_OC uses SLI4 */
4593 if (dev_grp == LPFC_PCI_DEV_OC)
4594 phba->sli_rev = LPFC_SLI_REV4;
4595
4596 /* Set up device INIT API function jump table */
4597 rc = lpfc_init_api_table_setup(phba, dev_grp);
4598 if (rc)
4599 return -ENODEV;
4600 /* Set up SCSI API function jump table */
4601 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4602 if (rc)
4603 return -ENODEV;
4604 /* Set up SLI API function jump table */
4605 rc = lpfc_sli_api_table_setup(phba, dev_grp);
4606 if (rc)
4607 return -ENODEV;
4608 /* Set up MBOX API function jump table */
4609 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4610 if (rc)
4611 return -ENODEV;
4612
4613 return 0;
4614 }
4615
4616 /**
4617 * lpfc_log_intr_mode - Log the active interrupt mode
4618 * @phba: pointer to lpfc hba data structure.
4619 * @intr_mode: active interrupt mode adopted.
4620 *
4621 * This routine it invoked to log the currently used active interrupt mode
4622 * to the device.
4623 **/
lpfc_log_intr_mode(struct lpfc_hba * phba,uint32_t intr_mode)4624 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4625 {
4626 switch (intr_mode) {
4627 case 0:
4628 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4629 "0470 Enable INTx interrupt mode.\n");
4630 break;
4631 case 1:
4632 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4633 "0481 Enabled MSI interrupt mode.\n");
4634 break;
4635 case 2:
4636 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4637 "0480 Enabled MSI-X interrupt mode.\n");
4638 break;
4639 default:
4640 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4641 "0482 Illegal interrupt mode.\n");
4642 break;
4643 }
4644 return;
4645 }
4646
4647 /**
4648 * lpfc_enable_pci_dev - Enable a generic PCI device.
4649 * @phba: pointer to lpfc hba data structure.
4650 *
4651 * This routine is invoked to enable the PCI device that is common to all
4652 * PCI devices.
4653 *
4654 * Return codes
4655 * 0 - successful
4656 * other values - error
4657 **/
4658 static int
lpfc_enable_pci_dev(struct lpfc_hba * phba)4659 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4660 {
4661 struct pci_dev *pdev;
4662 int bars = 0;
4663
4664 /* Obtain PCI device reference */
4665 if (!phba->pcidev)
4666 goto out_error;
4667 else
4668 pdev = phba->pcidev;
4669 /* Select PCI BARs */
4670 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4671 /* Enable PCI device */
4672 if (pci_enable_device_mem(pdev))
4673 goto out_error;
4674 /* Request PCI resource for the device */
4675 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4676 goto out_disable_device;
4677 /* Set up device as PCI master and save state for EEH */
4678 pci_set_master(pdev);
4679 pci_try_set_mwi(pdev);
4680 pci_save_state(pdev);
4681
4682 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4683 if (pci_is_pcie(pdev))
4684 pdev->needs_freset = 1;
4685
4686 return 0;
4687
4688 out_disable_device:
4689 pci_disable_device(pdev);
4690 out_error:
4691 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4692 "1401 Failed to enable pci device, bars:x%x\n", bars);
4693 return -ENODEV;
4694 }
4695
4696 /**
4697 * lpfc_disable_pci_dev - Disable a generic PCI device.
4698 * @phba: pointer to lpfc hba data structure.
4699 *
4700 * This routine is invoked to disable the PCI device that is common to all
4701 * PCI devices.
4702 **/
4703 static void
lpfc_disable_pci_dev(struct lpfc_hba * phba)4704 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4705 {
4706 struct pci_dev *pdev;
4707 int bars;
4708
4709 /* Obtain PCI device reference */
4710 if (!phba->pcidev)
4711 return;
4712 else
4713 pdev = phba->pcidev;
4714 /* Select PCI BARs */
4715 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4716 /* Release PCI resource and disable PCI device */
4717 pci_release_selected_regions(pdev, bars);
4718 pci_disable_device(pdev);
4719
4720 return;
4721 }
4722
4723 /**
4724 * lpfc_reset_hba - Reset a hba
4725 * @phba: pointer to lpfc hba data structure.
4726 *
4727 * This routine is invoked to reset a hba device. It brings the HBA
4728 * offline, performs a board restart, and then brings the board back
4729 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4730 * on outstanding mailbox commands.
4731 **/
4732 void
lpfc_reset_hba(struct lpfc_hba * phba)4733 lpfc_reset_hba(struct lpfc_hba *phba)
4734 {
4735 /* If resets are disabled then set error state and return. */
4736 if (!phba->cfg_enable_hba_reset) {
4737 phba->link_state = LPFC_HBA_ERROR;
4738 return;
4739 }
4740 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4741 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4742 else
4743 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4744 lpfc_offline(phba);
4745 lpfc_sli_brdrestart(phba);
4746 lpfc_online(phba);
4747 lpfc_unblock_mgmt_io(phba);
4748 }
4749
4750 /**
4751 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4752 * @phba: pointer to lpfc hba data structure.
4753 *
4754 * This function enables the PCI SR-IOV virtual functions to a physical
4755 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4756 * enable the number of virtual functions to the physical function. As
4757 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4758 * API call does not considered as an error condition for most of the device.
4759 **/
4760 uint16_t
lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba * phba)4761 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4762 {
4763 struct pci_dev *pdev = phba->pcidev;
4764 uint16_t nr_virtfn;
4765 int pos;
4766
4767 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4768 if (pos == 0)
4769 return 0;
4770
4771 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4772 return nr_virtfn;
4773 }
4774
4775 /**
4776 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4777 * @phba: pointer to lpfc hba data structure.
4778 * @nr_vfn: number of virtual functions to be enabled.
4779 *
4780 * This function enables the PCI SR-IOV virtual functions to a physical
4781 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4782 * enable the number of virtual functions to the physical function. As
4783 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4784 * API call does not considered as an error condition for most of the device.
4785 **/
4786 int
lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba * phba,int nr_vfn)4787 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4788 {
4789 struct pci_dev *pdev = phba->pcidev;
4790 uint16_t max_nr_vfn;
4791 int rc;
4792
4793 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4794 if (nr_vfn > max_nr_vfn) {
4795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4796 "3057 Requested vfs (%d) greater than "
4797 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4798 return -EINVAL;
4799 }
4800
4801 rc = pci_enable_sriov(pdev, nr_vfn);
4802 if (rc) {
4803 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4804 "2806 Failed to enable sriov on this device "
4805 "with vfn number nr_vf:%d, rc:%d\n",
4806 nr_vfn, rc);
4807 } else
4808 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4809 "2807 Successful enable sriov on this device "
4810 "with vfn number nr_vf:%d\n", nr_vfn);
4811 return rc;
4812 }
4813
4814 /**
4815 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4816 * @phba: pointer to lpfc hba data structure.
4817 *
4818 * This routine is invoked to set up the driver internal resources specific to
4819 * support the SLI-3 HBA device it attached to.
4820 *
4821 * Return codes
4822 * 0 - successful
4823 * other values - error
4824 **/
4825 static int
lpfc_sli_driver_resource_setup(struct lpfc_hba * phba)4826 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4827 {
4828 struct lpfc_sli *psli;
4829 int rc;
4830
4831 /*
4832 * Initialize timers used by driver
4833 */
4834
4835 /* Heartbeat timer */
4836 init_timer(&phba->hb_tmofunc);
4837 phba->hb_tmofunc.function = lpfc_hb_timeout;
4838 phba->hb_tmofunc.data = (unsigned long)phba;
4839
4840 psli = &phba->sli;
4841 /* MBOX heartbeat timer */
4842 init_timer(&psli->mbox_tmo);
4843 psli->mbox_tmo.function = lpfc_mbox_timeout;
4844 psli->mbox_tmo.data = (unsigned long) phba;
4845 /* FCP polling mode timer */
4846 init_timer(&phba->fcp_poll_timer);
4847 phba->fcp_poll_timer.function = lpfc_poll_timeout;
4848 phba->fcp_poll_timer.data = (unsigned long) phba;
4849 /* Fabric block timer */
4850 init_timer(&phba->fabric_block_timer);
4851 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4852 phba->fabric_block_timer.data = (unsigned long) phba;
4853 /* EA polling mode timer */
4854 init_timer(&phba->eratt_poll);
4855 phba->eratt_poll.function = lpfc_poll_eratt;
4856 phba->eratt_poll.data = (unsigned long) phba;
4857
4858 /* Host attention work mask setup */
4859 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4860 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4861
4862 /* Get all the module params for configuring this host */
4863 lpfc_get_cfgparam(phba);
4864 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4865 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4866 /* check for menlo minimum sg count */
4867 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4868 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4869 }
4870
4871 if (!phba->sli.ring)
4872 phba->sli.ring = (struct lpfc_sli_ring *)
4873 kzalloc(LPFC_SLI3_MAX_RING *
4874 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4875 if (!phba->sli.ring)
4876 return -ENOMEM;
4877
4878 /*
4879 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4880 * used to create the sg_dma_buf_pool must be dynamically calculated.
4881 */
4882
4883 /* Initialize the host templates the configured values. */
4884 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4885 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4886
4887 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
4888 if (phba->cfg_enable_bg) {
4889 /*
4890 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4891 * the FCP rsp, and a BDE for each. Sice we have no control
4892 * over how many protection data segments the SCSI Layer
4893 * will hand us (ie: there could be one for every block
4894 * in the IO), we just allocate enough BDEs to accomidate
4895 * our max amount and we need to limit lpfc_sg_seg_cnt to
4896 * minimize the risk of running out.
4897 */
4898 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4899 sizeof(struct fcp_rsp) +
4900 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
4901
4902 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
4903 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
4904
4905 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
4906 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4907 } else {
4908 /*
4909 * The scsi_buf for a regular I/O will hold the FCP cmnd,
4910 * the FCP rsp, a BDE for each, and a BDE for up to
4911 * cfg_sg_seg_cnt data segments.
4912 */
4913 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4914 sizeof(struct fcp_rsp) +
4915 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4916
4917 /* Total BDEs in BPL for scsi_sg_list */
4918 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
4919 }
4920
4921 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4922 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
4923 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
4924 phba->cfg_total_seg_cnt);
4925
4926 phba->max_vpi = LPFC_MAX_VPI;
4927 /* This will be set to correct value after config_port mbox */
4928 phba->max_vports = 0;
4929
4930 /*
4931 * Initialize the SLI Layer to run with lpfc HBAs.
4932 */
4933 lpfc_sli_setup(phba);
4934 lpfc_sli_queue_setup(phba);
4935
4936 /* Allocate device driver memory */
4937 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4938 return -ENOMEM;
4939
4940 /*
4941 * Enable sr-iov virtual functions if supported and configured
4942 * through the module parameter.
4943 */
4944 if (phba->cfg_sriov_nr_virtfn > 0) {
4945 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4946 phba->cfg_sriov_nr_virtfn);
4947 if (rc) {
4948 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4949 "2808 Requested number of SR-IOV "
4950 "virtual functions (%d) is not "
4951 "supported\n",
4952 phba->cfg_sriov_nr_virtfn);
4953 phba->cfg_sriov_nr_virtfn = 0;
4954 }
4955 }
4956
4957 return 0;
4958 }
4959
4960 /**
4961 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4962 * @phba: pointer to lpfc hba data structure.
4963 *
4964 * This routine is invoked to unset the driver internal resources set up
4965 * specific for supporting the SLI-3 HBA device it attached to.
4966 **/
4967 static void
lpfc_sli_driver_resource_unset(struct lpfc_hba * phba)4968 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4969 {
4970 /* Free device driver memory allocated */
4971 lpfc_mem_free_all(phba);
4972
4973 return;
4974 }
4975
4976 /**
4977 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4978 * @phba: pointer to lpfc hba data structure.
4979 *
4980 * This routine is invoked to set up the driver internal resources specific to
4981 * support the SLI-4 HBA device it attached to.
4982 *
4983 * Return codes
4984 * 0 - successful
4985 * other values - error
4986 **/
4987 static int
lpfc_sli4_driver_resource_setup(struct lpfc_hba * phba)4988 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4989 {
4990 struct lpfc_vector_map_info *cpup;
4991 struct lpfc_sli *psli;
4992 LPFC_MBOXQ_t *mboxq;
4993 int rc, i, hbq_count, max_buf_size;
4994 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4995 struct lpfc_mqe *mqe;
4996 int longs;
4997 int fof_vectors = 0;
4998
4999 /* Get all the module params for configuring this host */
5000 lpfc_get_cfgparam(phba);
5001
5002 /* Before proceed, wait for POST done and device ready */
5003 rc = lpfc_sli4_post_status_check(phba);
5004 if (rc)
5005 return -ENODEV;
5006
5007 /*
5008 * Initialize timers used by driver
5009 */
5010
5011 /* Heartbeat timer */
5012 init_timer(&phba->hb_tmofunc);
5013 phba->hb_tmofunc.function = lpfc_hb_timeout;
5014 phba->hb_tmofunc.data = (unsigned long)phba;
5015 init_timer(&phba->rrq_tmr);
5016 phba->rrq_tmr.function = lpfc_rrq_timeout;
5017 phba->rrq_tmr.data = (unsigned long)phba;
5018
5019 psli = &phba->sli;
5020 /* MBOX heartbeat timer */
5021 init_timer(&psli->mbox_tmo);
5022 psli->mbox_tmo.function = lpfc_mbox_timeout;
5023 psli->mbox_tmo.data = (unsigned long) phba;
5024 /* Fabric block timer */
5025 init_timer(&phba->fabric_block_timer);
5026 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5027 phba->fabric_block_timer.data = (unsigned long) phba;
5028 /* EA polling mode timer */
5029 init_timer(&phba->eratt_poll);
5030 phba->eratt_poll.function = lpfc_poll_eratt;
5031 phba->eratt_poll.data = (unsigned long) phba;
5032 /* FCF rediscover timer */
5033 init_timer(&phba->fcf.redisc_wait);
5034 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5035 phba->fcf.redisc_wait.data = (unsigned long)phba;
5036
5037 /*
5038 * Control structure for handling external multi-buffer mailbox
5039 * command pass-through.
5040 */
5041 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5042 sizeof(struct lpfc_mbox_ext_buf_ctx));
5043 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5044
5045 phba->max_vpi = LPFC_MAX_VPI;
5046
5047 /* This will be set to correct value after the read_config mbox */
5048 phba->max_vports = 0;
5049
5050 /* Program the default value of vlan_id and fc_map */
5051 phba->valid_vlan = 0;
5052 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5053 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5054 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5055
5056 /*
5057 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5058 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5059 */
5060 if (!phba->sli.ring)
5061 phba->sli.ring = kzalloc(
5062 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5063 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5064 if (!phba->sli.ring)
5065 return -ENOMEM;
5066
5067 /*
5068 * It doesn't matter what family our adapter is in, we are
5069 * limited to 2 Pages, 512 SGEs, for our SGL.
5070 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5071 */
5072 max_buf_size = (2 * SLI4_PAGE_SIZE);
5073 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5074 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5075
5076 /*
5077 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5078 * used to create the sg_dma_buf_pool must be dynamically calculated.
5079 */
5080
5081 if (phba->cfg_enable_bg) {
5082 /*
5083 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5084 * the FCP rsp, and a SGE for each. Sice we have no control
5085 * over how many protection data segments the SCSI Layer
5086 * will hand us (ie: there could be one for every block
5087 * in the IO), we just allocate enough SGEs to accomidate
5088 * our max amount and we need to limit lpfc_sg_seg_cnt to
5089 * minimize the risk of running out.
5090 */
5091 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5092 sizeof(struct fcp_rsp) + max_buf_size;
5093
5094 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5095 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5096
5097 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5098 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5099 } else {
5100 /*
5101 * The scsi_buf for a regular I/O will hold the FCP cmnd,
5102 * the FCP rsp, a SGE for each, and a SGE for up to
5103 * cfg_sg_seg_cnt data segments.
5104 */
5105 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5106 sizeof(struct fcp_rsp) +
5107 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5108
5109 /* Total SGEs for scsi_sg_list */
5110 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5111 /*
5112 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5113 * to post 1 page for the SGL.
5114 */
5115 }
5116
5117 /* Initialize the host templates with the updated values. */
5118 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5119 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5120
5121 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
5122 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5123 else
5124 phba->cfg_sg_dma_buf_size =
5125 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5126
5127 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5128 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5129 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5130 phba->cfg_total_seg_cnt);
5131
5132 /* Initialize buffer queue management fields */
5133 hbq_count = lpfc_sli_hbq_count();
5134 for (i = 0; i < hbq_count; ++i)
5135 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5136 INIT_LIST_HEAD(&phba->rb_pend_list);
5137 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5138 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5139
5140 /*
5141 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5142 */
5143 /* Initialize the Abort scsi buffer list used by driver */
5144 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5145 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5146 /* This abort list used by worker thread */
5147 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5148
5149 /*
5150 * Initialize driver internal slow-path work queues
5151 */
5152
5153 /* Driver internel slow-path CQ Event pool */
5154 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5155 /* Response IOCB work queue list */
5156 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5157 /* Asynchronous event CQ Event work queue list */
5158 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5159 /* Fast-path XRI aborted CQ Event work queue list */
5160 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5161 /* Slow-path XRI aborted CQ Event work queue list */
5162 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5163 /* Receive queue CQ Event work queue list */
5164 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5165
5166 /* Initialize extent block lists. */
5167 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5168 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5169 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5170 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5171
5172 /* Initialize the driver internal SLI layer lists. */
5173 lpfc_sli_setup(phba);
5174 lpfc_sli_queue_setup(phba);
5175
5176 /* Allocate device driver memory */
5177 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5178 if (rc)
5179 return -ENOMEM;
5180
5181 /* IF Type 2 ports get initialized now. */
5182 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5183 LPFC_SLI_INTF_IF_TYPE_2) {
5184 rc = lpfc_pci_function_reset(phba);
5185 if (unlikely(rc))
5186 return -ENODEV;
5187 }
5188
5189 /* Create the bootstrap mailbox command */
5190 rc = lpfc_create_bootstrap_mbox(phba);
5191 if (unlikely(rc))
5192 goto out_free_mem;
5193
5194 /* Set up the host's endian order with the device. */
5195 rc = lpfc_setup_endian_order(phba);
5196 if (unlikely(rc))
5197 goto out_free_bsmbx;
5198
5199 /* Set up the hba's configuration parameters. */
5200 rc = lpfc_sli4_read_config(phba);
5201 if (unlikely(rc))
5202 goto out_free_bsmbx;
5203 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5204 if (unlikely(rc))
5205 goto out_free_bsmbx;
5206
5207 /* IF Type 0 ports get initialized now. */
5208 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5209 LPFC_SLI_INTF_IF_TYPE_0) {
5210 rc = lpfc_pci_function_reset(phba);
5211 if (unlikely(rc))
5212 goto out_free_bsmbx;
5213 }
5214
5215 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5216 GFP_KERNEL);
5217 if (!mboxq) {
5218 rc = -ENOMEM;
5219 goto out_free_bsmbx;
5220 }
5221
5222 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5223 lpfc_supported_pages(mboxq);
5224 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5225 if (!rc) {
5226 mqe = &mboxq->u.mqe;
5227 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5228 LPFC_MAX_SUPPORTED_PAGES);
5229 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5230 switch (pn_page[i]) {
5231 case LPFC_SLI4_PARAMETERS:
5232 phba->sli4_hba.pc_sli4_params.supported = 1;
5233 break;
5234 default:
5235 break;
5236 }
5237 }
5238 /* Read the port's SLI4 Parameters capabilities if supported. */
5239 if (phba->sli4_hba.pc_sli4_params.supported)
5240 rc = lpfc_pc_sli4_params_get(phba, mboxq);
5241 if (rc) {
5242 mempool_free(mboxq, phba->mbox_mem_pool);
5243 rc = -EIO;
5244 goto out_free_bsmbx;
5245 }
5246 }
5247 /*
5248 * Get sli4 parameters that override parameters from Port capabilities.
5249 * If this call fails, it isn't critical unless the SLI4 parameters come
5250 * back in conflict.
5251 */
5252 rc = lpfc_get_sli4_parameters(phba, mboxq);
5253 if (rc) {
5254 if (phba->sli4_hba.extents_in_use &&
5255 phba->sli4_hba.rpi_hdrs_in_use) {
5256 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5257 "2999 Unsupported SLI4 Parameters "
5258 "Extents and RPI headers enabled.\n");
5259 goto out_free_bsmbx;
5260 }
5261 }
5262 mempool_free(mboxq, phba->mbox_mem_pool);
5263
5264 /* Verify OAS is supported */
5265 lpfc_sli4_oas_verify(phba);
5266 if (phba->cfg_fof)
5267 fof_vectors = 1;
5268
5269 /* Verify all the SLI4 queues */
5270 rc = lpfc_sli4_queue_verify(phba);
5271 if (rc)
5272 goto out_free_bsmbx;
5273
5274 /* Create driver internal CQE event pool */
5275 rc = lpfc_sli4_cq_event_pool_create(phba);
5276 if (rc)
5277 goto out_free_bsmbx;
5278
5279 /* Initialize sgl lists per host */
5280 lpfc_init_sgl_list(phba);
5281
5282 /* Allocate and initialize active sgl array */
5283 rc = lpfc_init_active_sgl_array(phba);
5284 if (rc) {
5285 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5286 "1430 Failed to initialize sgl list.\n");
5287 goto out_destroy_cq_event_pool;
5288 }
5289 rc = lpfc_sli4_init_rpi_hdrs(phba);
5290 if (rc) {
5291 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5292 "1432 Failed to initialize rpi headers.\n");
5293 goto out_free_active_sgl;
5294 }
5295
5296 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5297 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5298 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5299 GFP_KERNEL);
5300 if (!phba->fcf.fcf_rr_bmask) {
5301 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5302 "2759 Failed allocate memory for FCF round "
5303 "robin failover bmask\n");
5304 rc = -ENOMEM;
5305 goto out_remove_rpi_hdrs;
5306 }
5307
5308 phba->sli4_hba.fcp_eq_hdl =
5309 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5310 (fof_vectors + phba->cfg_fcp_io_channel)),
5311 GFP_KERNEL);
5312 if (!phba->sli4_hba.fcp_eq_hdl) {
5313 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5314 "2572 Failed allocate memory for "
5315 "fast-path per-EQ handle array\n");
5316 rc = -ENOMEM;
5317 goto out_free_fcf_rr_bmask;
5318 }
5319
5320 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5321 (fof_vectors +
5322 phba->cfg_fcp_io_channel)), GFP_KERNEL);
5323 if (!phba->sli4_hba.msix_entries) {
5324 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5325 "2573 Failed allocate memory for msi-x "
5326 "interrupt vector entries\n");
5327 rc = -ENOMEM;
5328 goto out_free_fcp_eq_hdl;
5329 }
5330
5331 phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5332 phba->sli4_hba.num_present_cpu),
5333 GFP_KERNEL);
5334 if (!phba->sli4_hba.cpu_map) {
5335 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5336 "3327 Failed allocate memory for msi-x "
5337 "interrupt vector mapping\n");
5338 rc = -ENOMEM;
5339 goto out_free_msix;
5340 }
5341 if (lpfc_used_cpu == NULL) {
5342 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5343 GFP_KERNEL);
5344 if (!lpfc_used_cpu) {
5345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5346 "3335 Failed allocate memory for msi-x "
5347 "interrupt vector mapping\n");
5348 kfree(phba->sli4_hba.cpu_map);
5349 rc = -ENOMEM;
5350 goto out_free_msix;
5351 }
5352 for (i = 0; i < lpfc_present_cpu; i++)
5353 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5354 }
5355
5356 /* Initialize io channels for round robin */
5357 cpup = phba->sli4_hba.cpu_map;
5358 rc = 0;
5359 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5360 cpup->channel_id = rc;
5361 rc++;
5362 if (rc >= phba->cfg_fcp_io_channel)
5363 rc = 0;
5364 }
5365
5366 /*
5367 * Enable sr-iov virtual functions if supported and configured
5368 * through the module parameter.
5369 */
5370 if (phba->cfg_sriov_nr_virtfn > 0) {
5371 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5372 phba->cfg_sriov_nr_virtfn);
5373 if (rc) {
5374 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5375 "3020 Requested number of SR-IOV "
5376 "virtual functions (%d) is not "
5377 "supported\n",
5378 phba->cfg_sriov_nr_virtfn);
5379 phba->cfg_sriov_nr_virtfn = 0;
5380 }
5381 }
5382
5383 return 0;
5384
5385 out_free_msix:
5386 kfree(phba->sli4_hba.msix_entries);
5387 out_free_fcp_eq_hdl:
5388 kfree(phba->sli4_hba.fcp_eq_hdl);
5389 out_free_fcf_rr_bmask:
5390 kfree(phba->fcf.fcf_rr_bmask);
5391 out_remove_rpi_hdrs:
5392 lpfc_sli4_remove_rpi_hdrs(phba);
5393 out_free_active_sgl:
5394 lpfc_free_active_sgl(phba);
5395 out_destroy_cq_event_pool:
5396 lpfc_sli4_cq_event_pool_destroy(phba);
5397 out_free_bsmbx:
5398 lpfc_destroy_bootstrap_mbox(phba);
5399 out_free_mem:
5400 lpfc_mem_free(phba);
5401 return rc;
5402 }
5403
5404 /**
5405 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5406 * @phba: pointer to lpfc hba data structure.
5407 *
5408 * This routine is invoked to unset the driver internal resources set up
5409 * specific for supporting the SLI-4 HBA device it attached to.
5410 **/
5411 static void
lpfc_sli4_driver_resource_unset(struct lpfc_hba * phba)5412 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5413 {
5414 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5415
5416 /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5417 kfree(phba->sli4_hba.cpu_map);
5418 phba->sli4_hba.num_present_cpu = 0;
5419 phba->sli4_hba.num_online_cpu = 0;
5420 phba->sli4_hba.curr_disp_cpu = 0;
5421
5422 /* Free memory allocated for msi-x interrupt vector entries */
5423 kfree(phba->sli4_hba.msix_entries);
5424
5425 /* Free memory allocated for fast-path work queue handles */
5426 kfree(phba->sli4_hba.fcp_eq_hdl);
5427
5428 /* Free the allocated rpi headers. */
5429 lpfc_sli4_remove_rpi_hdrs(phba);
5430 lpfc_sli4_remove_rpis(phba);
5431
5432 /* Free eligible FCF index bmask */
5433 kfree(phba->fcf.fcf_rr_bmask);
5434
5435 /* Free the ELS sgl list */
5436 lpfc_free_active_sgl(phba);
5437 lpfc_free_els_sgl_list(phba);
5438
5439 /* Free the completion queue EQ event pool */
5440 lpfc_sli4_cq_event_release_all(phba);
5441 lpfc_sli4_cq_event_pool_destroy(phba);
5442
5443 /* Release resource identifiers. */
5444 lpfc_sli4_dealloc_resource_identifiers(phba);
5445
5446 /* Free the bsmbx region. */
5447 lpfc_destroy_bootstrap_mbox(phba);
5448
5449 /* Free the SLI Layer memory with SLI4 HBAs */
5450 lpfc_mem_free_all(phba);
5451
5452 /* Free the current connect table */
5453 list_for_each_entry_safe(conn_entry, next_conn_entry,
5454 &phba->fcf_conn_rec_list, list) {
5455 list_del_init(&conn_entry->list);
5456 kfree(conn_entry);
5457 }
5458
5459 return;
5460 }
5461
5462 /**
5463 * lpfc_init_api_table_setup - Set up init api function jump table
5464 * @phba: The hba struct for which this call is being executed.
5465 * @dev_grp: The HBA PCI-Device group number.
5466 *
5467 * This routine sets up the device INIT interface API function jump table
5468 * in @phba struct.
5469 *
5470 * Returns: 0 - success, -ENODEV - failure.
5471 **/
5472 int
lpfc_init_api_table_setup(struct lpfc_hba * phba,uint8_t dev_grp)5473 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5474 {
5475 phba->lpfc_hba_init_link = lpfc_hba_init_link;
5476 phba->lpfc_hba_down_link = lpfc_hba_down_link;
5477 phba->lpfc_selective_reset = lpfc_selective_reset;
5478 switch (dev_grp) {
5479 case LPFC_PCI_DEV_LP:
5480 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5481 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5482 phba->lpfc_stop_port = lpfc_stop_port_s3;
5483 break;
5484 case LPFC_PCI_DEV_OC:
5485 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5486 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5487 phba->lpfc_stop_port = lpfc_stop_port_s4;
5488 break;
5489 default:
5490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5491 "1431 Invalid HBA PCI-device group: 0x%x\n",
5492 dev_grp);
5493 return -ENODEV;
5494 break;
5495 }
5496 return 0;
5497 }
5498
5499 /**
5500 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5501 * @phba: pointer to lpfc hba data structure.
5502 *
5503 * This routine is invoked to set up the driver internal resources before the
5504 * device specific resource setup to support the HBA device it attached to.
5505 *
5506 * Return codes
5507 * 0 - successful
5508 * other values - error
5509 **/
5510 static int
lpfc_setup_driver_resource_phase1(struct lpfc_hba * phba)5511 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5512 {
5513 /*
5514 * Driver resources common to all SLI revisions
5515 */
5516 atomic_set(&phba->fast_event_count, 0);
5517 spin_lock_init(&phba->hbalock);
5518
5519 /* Initialize ndlp management spinlock */
5520 spin_lock_init(&phba->ndlp_lock);
5521
5522 INIT_LIST_HEAD(&phba->port_list);
5523 INIT_LIST_HEAD(&phba->work_list);
5524 init_waitqueue_head(&phba->wait_4_mlo_m_q);
5525
5526 /* Initialize the wait queue head for the kernel thread */
5527 init_waitqueue_head(&phba->work_waitq);
5528
5529 /* Initialize the scsi buffer list used by driver for scsi IO */
5530 spin_lock_init(&phba->scsi_buf_list_get_lock);
5531 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5532 spin_lock_init(&phba->scsi_buf_list_put_lock);
5533 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5534
5535 /* Initialize the fabric iocb list */
5536 INIT_LIST_HEAD(&phba->fabric_iocb_list);
5537
5538 /* Initialize list to save ELS buffers */
5539 INIT_LIST_HEAD(&phba->elsbuf);
5540
5541 /* Initialize FCF connection rec list */
5542 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5543
5544 /* Initialize OAS configuration list */
5545 spin_lock_init(&phba->devicelock);
5546 INIT_LIST_HEAD(&phba->luns);
5547
5548 return 0;
5549 }
5550
5551 /**
5552 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5553 * @phba: pointer to lpfc hba data structure.
5554 *
5555 * This routine is invoked to set up the driver internal resources after the
5556 * device specific resource setup to support the HBA device it attached to.
5557 *
5558 * Return codes
5559 * 0 - successful
5560 * other values - error
5561 **/
5562 static int
lpfc_setup_driver_resource_phase2(struct lpfc_hba * phba)5563 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5564 {
5565 int error;
5566
5567 /* Startup the kernel thread for this host adapter. */
5568 phba->worker_thread = kthread_run(lpfc_do_work, phba,
5569 "lpfc_worker_%d", phba->brd_no);
5570 if (IS_ERR(phba->worker_thread)) {
5571 error = PTR_ERR(phba->worker_thread);
5572 return error;
5573 }
5574
5575 return 0;
5576 }
5577
5578 /**
5579 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5580 * @phba: pointer to lpfc hba data structure.
5581 *
5582 * This routine is invoked to unset the driver internal resources set up after
5583 * the device specific resource setup for supporting the HBA device it
5584 * attached to.
5585 **/
5586 static void
lpfc_unset_driver_resource_phase2(struct lpfc_hba * phba)5587 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5588 {
5589 /* Stop kernel worker thread */
5590 kthread_stop(phba->worker_thread);
5591 }
5592
5593 /**
5594 * lpfc_free_iocb_list - Free iocb list.
5595 * @phba: pointer to lpfc hba data structure.
5596 *
5597 * This routine is invoked to free the driver's IOCB list and memory.
5598 **/
5599 static void
lpfc_free_iocb_list(struct lpfc_hba * phba)5600 lpfc_free_iocb_list(struct lpfc_hba *phba)
5601 {
5602 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5603
5604 spin_lock_irq(&phba->hbalock);
5605 list_for_each_entry_safe(iocbq_entry, iocbq_next,
5606 &phba->lpfc_iocb_list, list) {
5607 list_del(&iocbq_entry->list);
5608 kfree(iocbq_entry);
5609 phba->total_iocbq_bufs--;
5610 }
5611 spin_unlock_irq(&phba->hbalock);
5612
5613 return;
5614 }
5615
5616 /**
5617 * lpfc_init_iocb_list - Allocate and initialize iocb list.
5618 * @phba: pointer to lpfc hba data structure.
5619 *
5620 * This routine is invoked to allocate and initizlize the driver's IOCB
5621 * list and set up the IOCB tag array accordingly.
5622 *
5623 * Return codes
5624 * 0 - successful
5625 * other values - error
5626 **/
5627 static int
lpfc_init_iocb_list(struct lpfc_hba * phba,int iocb_count)5628 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5629 {
5630 struct lpfc_iocbq *iocbq_entry = NULL;
5631 uint16_t iotag;
5632 int i;
5633
5634 /* Initialize and populate the iocb list per host. */
5635 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5636 for (i = 0; i < iocb_count; i++) {
5637 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5638 if (iocbq_entry == NULL) {
5639 printk(KERN_ERR "%s: only allocated %d iocbs of "
5640 "expected %d count. Unloading driver.\n",
5641 __func__, i, LPFC_IOCB_LIST_CNT);
5642 goto out_free_iocbq;
5643 }
5644
5645 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5646 if (iotag == 0) {
5647 kfree(iocbq_entry);
5648 printk(KERN_ERR "%s: failed to allocate IOTAG. "
5649 "Unloading driver.\n", __func__);
5650 goto out_free_iocbq;
5651 }
5652 iocbq_entry->sli4_lxritag = NO_XRI;
5653 iocbq_entry->sli4_xritag = NO_XRI;
5654
5655 spin_lock_irq(&phba->hbalock);
5656 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5657 phba->total_iocbq_bufs++;
5658 spin_unlock_irq(&phba->hbalock);
5659 }
5660
5661 return 0;
5662
5663 out_free_iocbq:
5664 lpfc_free_iocb_list(phba);
5665
5666 return -ENOMEM;
5667 }
5668
5669 /**
5670 * lpfc_free_sgl_list - Free a given sgl list.
5671 * @phba: pointer to lpfc hba data structure.
5672 * @sglq_list: pointer to the head of sgl list.
5673 *
5674 * This routine is invoked to free a give sgl list and memory.
5675 **/
5676 void
lpfc_free_sgl_list(struct lpfc_hba * phba,struct list_head * sglq_list)5677 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5678 {
5679 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5680
5681 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5682 list_del(&sglq_entry->list);
5683 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5684 kfree(sglq_entry);
5685 }
5686 }
5687
5688 /**
5689 * lpfc_free_els_sgl_list - Free els sgl list.
5690 * @phba: pointer to lpfc hba data structure.
5691 *
5692 * This routine is invoked to free the driver's els sgl list and memory.
5693 **/
5694 static void
lpfc_free_els_sgl_list(struct lpfc_hba * phba)5695 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5696 {
5697 LIST_HEAD(sglq_list);
5698 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
5699
5700 /* Retrieve all els sgls from driver list */
5701 spin_lock_irq(&phba->hbalock);
5702 spin_lock(&pring->ring_lock);
5703 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5704 spin_unlock(&pring->ring_lock);
5705 spin_unlock_irq(&phba->hbalock);
5706
5707 /* Now free the sgl list */
5708 lpfc_free_sgl_list(phba, &sglq_list);
5709 }
5710
5711 /**
5712 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5713 * @phba: pointer to lpfc hba data structure.
5714 *
5715 * This routine is invoked to allocate the driver's active sgl memory.
5716 * This array will hold the sglq_entry's for active IOs.
5717 **/
5718 static int
lpfc_init_active_sgl_array(struct lpfc_hba * phba)5719 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5720 {
5721 int size;
5722 size = sizeof(struct lpfc_sglq *);
5723 size *= phba->sli4_hba.max_cfg_param.max_xri;
5724
5725 phba->sli4_hba.lpfc_sglq_active_list =
5726 kzalloc(size, GFP_KERNEL);
5727 if (!phba->sli4_hba.lpfc_sglq_active_list)
5728 return -ENOMEM;
5729 return 0;
5730 }
5731
5732 /**
5733 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5734 * @phba: pointer to lpfc hba data structure.
5735 *
5736 * This routine is invoked to walk through the array of active sglq entries
5737 * and free all of the resources.
5738 * This is just a place holder for now.
5739 **/
5740 static void
lpfc_free_active_sgl(struct lpfc_hba * phba)5741 lpfc_free_active_sgl(struct lpfc_hba *phba)
5742 {
5743 kfree(phba->sli4_hba.lpfc_sglq_active_list);
5744 }
5745
5746 /**
5747 * lpfc_init_sgl_list - Allocate and initialize sgl list.
5748 * @phba: pointer to lpfc hba data structure.
5749 *
5750 * This routine is invoked to allocate and initizlize the driver's sgl
5751 * list and set up the sgl xritag tag array accordingly.
5752 *
5753 **/
5754 static void
lpfc_init_sgl_list(struct lpfc_hba * phba)5755 lpfc_init_sgl_list(struct lpfc_hba *phba)
5756 {
5757 /* Initialize and populate the sglq list per host/VF. */
5758 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5759 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5760
5761 /* els xri-sgl book keeping */
5762 phba->sli4_hba.els_xri_cnt = 0;
5763
5764 /* scsi xri-buffer book keeping */
5765 phba->sli4_hba.scsi_xri_cnt = 0;
5766 }
5767
5768 /**
5769 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5770 * @phba: pointer to lpfc hba data structure.
5771 *
5772 * This routine is invoked to post rpi header templates to the
5773 * port for those SLI4 ports that do not support extents. This routine
5774 * posts a PAGE_SIZE memory region to the port to hold up to
5775 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5776 * and should be called only when interrupts are disabled.
5777 *
5778 * Return codes
5779 * 0 - successful
5780 * -ERROR - otherwise.
5781 **/
5782 int
lpfc_sli4_init_rpi_hdrs(struct lpfc_hba * phba)5783 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5784 {
5785 int rc = 0;
5786 struct lpfc_rpi_hdr *rpi_hdr;
5787
5788 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5789 if (!phba->sli4_hba.rpi_hdrs_in_use)
5790 return rc;
5791 if (phba->sli4_hba.extents_in_use)
5792 return -EIO;
5793
5794 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5795 if (!rpi_hdr) {
5796 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5797 "0391 Error during rpi post operation\n");
5798 lpfc_sli4_remove_rpis(phba);
5799 rc = -ENODEV;
5800 }
5801
5802 return rc;
5803 }
5804
5805 /**
5806 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5807 * @phba: pointer to lpfc hba data structure.
5808 *
5809 * This routine is invoked to allocate a single 4KB memory region to
5810 * support rpis and stores them in the phba. This single region
5811 * provides support for up to 64 rpis. The region is used globally
5812 * by the device.
5813 *
5814 * Returns:
5815 * A valid rpi hdr on success.
5816 * A NULL pointer on any failure.
5817 **/
5818 struct lpfc_rpi_hdr *
lpfc_sli4_create_rpi_hdr(struct lpfc_hba * phba)5819 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5820 {
5821 uint16_t rpi_limit, curr_rpi_range;
5822 struct lpfc_dmabuf *dmabuf;
5823 struct lpfc_rpi_hdr *rpi_hdr;
5824 uint32_t rpi_count;
5825
5826 /*
5827 * If the SLI4 port supports extents, posting the rpi header isn't
5828 * required. Set the expected maximum count and let the actual value
5829 * get set when extents are fully allocated.
5830 */
5831 if (!phba->sli4_hba.rpi_hdrs_in_use)
5832 return NULL;
5833 if (phba->sli4_hba.extents_in_use)
5834 return NULL;
5835
5836 /* The limit on the logical index is just the max_rpi count. */
5837 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5838 phba->sli4_hba.max_cfg_param.max_rpi - 1;
5839
5840 spin_lock_irq(&phba->hbalock);
5841 /*
5842 * Establish the starting RPI in this header block. The starting
5843 * rpi is normalized to a zero base because the physical rpi is
5844 * port based.
5845 */
5846 curr_rpi_range = phba->sli4_hba.next_rpi;
5847 spin_unlock_irq(&phba->hbalock);
5848
5849 /*
5850 * The port has a limited number of rpis. The increment here
5851 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5852 * and to allow the full max_rpi range per port.
5853 */
5854 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5855 rpi_count = rpi_limit - curr_rpi_range;
5856 else
5857 rpi_count = LPFC_RPI_HDR_COUNT;
5858
5859 if (!rpi_count)
5860 return NULL;
5861 /*
5862 * First allocate the protocol header region for the port. The
5863 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5864 */
5865 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5866 if (!dmabuf)
5867 return NULL;
5868
5869 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
5870 LPFC_HDR_TEMPLATE_SIZE,
5871 &dmabuf->phys, GFP_KERNEL);
5872 if (!dmabuf->virt) {
5873 rpi_hdr = NULL;
5874 goto err_free_dmabuf;
5875 }
5876
5877 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5878 rpi_hdr = NULL;
5879 goto err_free_coherent;
5880 }
5881
5882 /* Save the rpi header data for cleanup later. */
5883 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5884 if (!rpi_hdr)
5885 goto err_free_coherent;
5886
5887 rpi_hdr->dmabuf = dmabuf;
5888 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5889 rpi_hdr->page_count = 1;
5890 spin_lock_irq(&phba->hbalock);
5891
5892 /* The rpi_hdr stores the logical index only. */
5893 rpi_hdr->start_rpi = curr_rpi_range;
5894 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5895
5896 /*
5897 * The next_rpi stores the next logical module-64 rpi value used
5898 * to post physical rpis in subsequent rpi postings.
5899 */
5900 phba->sli4_hba.next_rpi += rpi_count;
5901 spin_unlock_irq(&phba->hbalock);
5902 return rpi_hdr;
5903
5904 err_free_coherent:
5905 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5906 dmabuf->virt, dmabuf->phys);
5907 err_free_dmabuf:
5908 kfree(dmabuf);
5909 return NULL;
5910 }
5911
5912 /**
5913 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5914 * @phba: pointer to lpfc hba data structure.
5915 *
5916 * This routine is invoked to remove all memory resources allocated
5917 * to support rpis for SLI4 ports not supporting extents. This routine
5918 * presumes the caller has released all rpis consumed by fabric or port
5919 * logins and is prepared to have the header pages removed.
5920 **/
5921 void
lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba * phba)5922 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5923 {
5924 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5925
5926 if (!phba->sli4_hba.rpi_hdrs_in_use)
5927 goto exit;
5928
5929 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5930 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5931 list_del(&rpi_hdr->list);
5932 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5933 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5934 kfree(rpi_hdr->dmabuf);
5935 kfree(rpi_hdr);
5936 }
5937 exit:
5938 /* There are no rpis available to the port now. */
5939 phba->sli4_hba.next_rpi = 0;
5940 }
5941
5942 /**
5943 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5944 * @pdev: pointer to pci device data structure.
5945 *
5946 * This routine is invoked to allocate the driver hba data structure for an
5947 * HBA device. If the allocation is successful, the phba reference to the
5948 * PCI device data structure is set.
5949 *
5950 * Return codes
5951 * pointer to @phba - successful
5952 * NULL - error
5953 **/
5954 static struct lpfc_hba *
lpfc_hba_alloc(struct pci_dev * pdev)5955 lpfc_hba_alloc(struct pci_dev *pdev)
5956 {
5957 struct lpfc_hba *phba;
5958
5959 /* Allocate memory for HBA structure */
5960 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5961 if (!phba) {
5962 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5963 return NULL;
5964 }
5965
5966 /* Set reference to PCI device in HBA structure */
5967 phba->pcidev = pdev;
5968
5969 /* Assign an unused board number */
5970 phba->brd_no = lpfc_get_instance();
5971 if (phba->brd_no < 0) {
5972 kfree(phba);
5973 return NULL;
5974 }
5975
5976 spin_lock_init(&phba->ct_ev_lock);
5977 INIT_LIST_HEAD(&phba->ct_ev_waiters);
5978
5979 return phba;
5980 }
5981
5982 /**
5983 * lpfc_hba_free - Free driver hba data structure with a device.
5984 * @phba: pointer to lpfc hba data structure.
5985 *
5986 * This routine is invoked to free the driver hba data structure with an
5987 * HBA device.
5988 **/
5989 static void
lpfc_hba_free(struct lpfc_hba * phba)5990 lpfc_hba_free(struct lpfc_hba *phba)
5991 {
5992 /* Release the driver assigned board number */
5993 idr_remove(&lpfc_hba_index, phba->brd_no);
5994
5995 /* Free memory allocated with sli rings */
5996 kfree(phba->sli.ring);
5997 phba->sli.ring = NULL;
5998
5999 kfree(phba);
6000 return;
6001 }
6002
6003 /**
6004 * lpfc_create_shost - Create hba physical port with associated scsi host.
6005 * @phba: pointer to lpfc hba data structure.
6006 *
6007 * This routine is invoked to create HBA physical port and associate a SCSI
6008 * host with it.
6009 *
6010 * Return codes
6011 * 0 - successful
6012 * other values - error
6013 **/
6014 static int
lpfc_create_shost(struct lpfc_hba * phba)6015 lpfc_create_shost(struct lpfc_hba *phba)
6016 {
6017 struct lpfc_vport *vport;
6018 struct Scsi_Host *shost;
6019
6020 /* Initialize HBA FC structure */
6021 phba->fc_edtov = FF_DEF_EDTOV;
6022 phba->fc_ratov = FF_DEF_RATOV;
6023 phba->fc_altov = FF_DEF_ALTOV;
6024 phba->fc_arbtov = FF_DEF_ARBTOV;
6025
6026 atomic_set(&phba->sdev_cnt, 0);
6027 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6028 if (!vport)
6029 return -ENODEV;
6030
6031 shost = lpfc_shost_from_vport(vport);
6032 phba->pport = vport;
6033 lpfc_debugfs_initialize(vport);
6034 /* Put reference to SCSI host to driver's device private data */
6035 pci_set_drvdata(phba->pcidev, shost);
6036
6037 return 0;
6038 }
6039
6040 /**
6041 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6042 * @phba: pointer to lpfc hba data structure.
6043 *
6044 * This routine is invoked to destroy HBA physical port and the associated
6045 * SCSI host.
6046 **/
6047 static void
lpfc_destroy_shost(struct lpfc_hba * phba)6048 lpfc_destroy_shost(struct lpfc_hba *phba)
6049 {
6050 struct lpfc_vport *vport = phba->pport;
6051
6052 /* Destroy physical port that associated with the SCSI host */
6053 destroy_port(vport);
6054
6055 return;
6056 }
6057
6058 /**
6059 * lpfc_setup_bg - Setup Block guard structures and debug areas.
6060 * @phba: pointer to lpfc hba data structure.
6061 * @shost: the shost to be used to detect Block guard settings.
6062 *
6063 * This routine sets up the local Block guard protocol settings for @shost.
6064 * This routine also allocates memory for debugging bg buffers.
6065 **/
6066 static void
lpfc_setup_bg(struct lpfc_hba * phba,struct Scsi_Host * shost)6067 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6068 {
6069 uint32_t old_mask;
6070 uint32_t old_guard;
6071
6072 int pagecnt = 10;
6073 if (lpfc_prot_mask && lpfc_prot_guard) {
6074 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6075 "1478 Registering BlockGuard with the "
6076 "SCSI layer\n");
6077
6078 old_mask = lpfc_prot_mask;
6079 old_guard = lpfc_prot_guard;
6080
6081 /* Only allow supported values */
6082 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6083 SHOST_DIX_TYPE0_PROTECTION |
6084 SHOST_DIX_TYPE1_PROTECTION);
6085 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
6086
6087 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6088 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6089 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6090
6091 if (lpfc_prot_mask && lpfc_prot_guard) {
6092 if ((old_mask != lpfc_prot_mask) ||
6093 (old_guard != lpfc_prot_guard))
6094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6095 "1475 Registering BlockGuard with the "
6096 "SCSI layer: mask %d guard %d\n",
6097 lpfc_prot_mask, lpfc_prot_guard);
6098
6099 scsi_host_set_prot(shost, lpfc_prot_mask);
6100 scsi_host_set_guard(shost, lpfc_prot_guard);
6101 } else
6102 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6103 "1479 Not Registering BlockGuard with the SCSI "
6104 "layer, Bad protection parameters: %d %d\n",
6105 old_mask, old_guard);
6106 }
6107
6108 if (!_dump_buf_data) {
6109 while (pagecnt) {
6110 spin_lock_init(&_dump_buf_lock);
6111 _dump_buf_data =
6112 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6113 if (_dump_buf_data) {
6114 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6115 "9043 BLKGRD: allocated %d pages for "
6116 "_dump_buf_data at 0x%p\n",
6117 (1 << pagecnt), _dump_buf_data);
6118 _dump_buf_data_order = pagecnt;
6119 memset(_dump_buf_data, 0,
6120 ((1 << PAGE_SHIFT) << pagecnt));
6121 break;
6122 } else
6123 --pagecnt;
6124 }
6125 if (!_dump_buf_data_order)
6126 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6127 "9044 BLKGRD: ERROR unable to allocate "
6128 "memory for hexdump\n");
6129 } else
6130 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6131 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6132 "\n", _dump_buf_data);
6133 if (!_dump_buf_dif) {
6134 while (pagecnt) {
6135 _dump_buf_dif =
6136 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6137 if (_dump_buf_dif) {
6138 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6139 "9046 BLKGRD: allocated %d pages for "
6140 "_dump_buf_dif at 0x%p\n",
6141 (1 << pagecnt), _dump_buf_dif);
6142 _dump_buf_dif_order = pagecnt;
6143 memset(_dump_buf_dif, 0,
6144 ((1 << PAGE_SHIFT) << pagecnt));
6145 break;
6146 } else
6147 --pagecnt;
6148 }
6149 if (!_dump_buf_dif_order)
6150 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6151 "9047 BLKGRD: ERROR unable to allocate "
6152 "memory for hexdump\n");
6153 } else
6154 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6155 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6156 _dump_buf_dif);
6157 }
6158
6159 /**
6160 * lpfc_post_init_setup - Perform necessary device post initialization setup.
6161 * @phba: pointer to lpfc hba data structure.
6162 *
6163 * This routine is invoked to perform all the necessary post initialization
6164 * setup for the device.
6165 **/
6166 static void
lpfc_post_init_setup(struct lpfc_hba * phba)6167 lpfc_post_init_setup(struct lpfc_hba *phba)
6168 {
6169 struct Scsi_Host *shost;
6170 struct lpfc_adapter_event_header adapter_event;
6171
6172 /* Get the default values for Model Name and Description */
6173 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6174
6175 /*
6176 * hba setup may have changed the hba_queue_depth so we need to
6177 * adjust the value of can_queue.
6178 */
6179 shost = pci_get_drvdata(phba->pcidev);
6180 shost->can_queue = phba->cfg_hba_queue_depth - 10;
6181 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6182 lpfc_setup_bg(phba, shost);
6183
6184 lpfc_host_attrib_init(shost);
6185
6186 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6187 spin_lock_irq(shost->host_lock);
6188 lpfc_poll_start_timer(phba);
6189 spin_unlock_irq(shost->host_lock);
6190 }
6191
6192 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6193 "0428 Perform SCSI scan\n");
6194 /* Send board arrival event to upper layer */
6195 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6196 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6197 fc_host_post_vendor_event(shost, fc_get_event_number(),
6198 sizeof(adapter_event),
6199 (char *) &adapter_event,
6200 LPFC_NL_VENDOR_ID);
6201 return;
6202 }
6203
6204 /**
6205 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6206 * @phba: pointer to lpfc hba data structure.
6207 *
6208 * This routine is invoked to set up the PCI device memory space for device
6209 * with SLI-3 interface spec.
6210 *
6211 * Return codes
6212 * 0 - successful
6213 * other values - error
6214 **/
6215 static int
lpfc_sli_pci_mem_setup(struct lpfc_hba * phba)6216 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6217 {
6218 struct pci_dev *pdev;
6219 unsigned long bar0map_len, bar2map_len;
6220 int i, hbq_count;
6221 void *ptr;
6222 int error = -ENODEV;
6223
6224 /* Obtain PCI device reference */
6225 if (!phba->pcidev)
6226 return error;
6227 else
6228 pdev = phba->pcidev;
6229
6230 /* Set the device DMA mask size */
6231 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6232 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6233 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6234 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6235 return error;
6236 }
6237 }
6238
6239 /* Get the bus address of Bar0 and Bar2 and the number of bytes
6240 * required by each mapping.
6241 */
6242 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6243 bar0map_len = pci_resource_len(pdev, 0);
6244
6245 phba->pci_bar2_map = pci_resource_start(pdev, 2);
6246 bar2map_len = pci_resource_len(pdev, 2);
6247
6248 /* Map HBA SLIM to a kernel virtual address. */
6249 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6250 if (!phba->slim_memmap_p) {
6251 dev_printk(KERN_ERR, &pdev->dev,
6252 "ioremap failed for SLIM memory.\n");
6253 goto out;
6254 }
6255
6256 /* Map HBA Control Registers to a kernel virtual address. */
6257 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6258 if (!phba->ctrl_regs_memmap_p) {
6259 dev_printk(KERN_ERR, &pdev->dev,
6260 "ioremap failed for HBA control registers.\n");
6261 goto out_iounmap_slim;
6262 }
6263
6264 /* Allocate memory for SLI-2 structures */
6265 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6266 &phba->slim2p.phys, GFP_KERNEL);
6267 if (!phba->slim2p.virt)
6268 goto out_iounmap;
6269
6270 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6271 phba->mbox_ext = (phba->slim2p.virt +
6272 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6273 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6274 phba->IOCBs = (phba->slim2p.virt +
6275 offsetof(struct lpfc_sli2_slim, IOCBs));
6276
6277 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6278 lpfc_sli_hbq_size(),
6279 &phba->hbqslimp.phys,
6280 GFP_KERNEL);
6281 if (!phba->hbqslimp.virt)
6282 goto out_free_slim;
6283
6284 hbq_count = lpfc_sli_hbq_count();
6285 ptr = phba->hbqslimp.virt;
6286 for (i = 0; i < hbq_count; ++i) {
6287 phba->hbqs[i].hbq_virt = ptr;
6288 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6289 ptr += (lpfc_hbq_defs[i]->entry_count *
6290 sizeof(struct lpfc_hbq_entry));
6291 }
6292 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6293 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6294
6295 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6296
6297 INIT_LIST_HEAD(&phba->rb_pend_list);
6298
6299 phba->MBslimaddr = phba->slim_memmap_p;
6300 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6301 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6302 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6303 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6304
6305 return 0;
6306
6307 out_free_slim:
6308 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6309 phba->slim2p.virt, phba->slim2p.phys);
6310 out_iounmap:
6311 iounmap(phba->ctrl_regs_memmap_p);
6312 out_iounmap_slim:
6313 iounmap(phba->slim_memmap_p);
6314 out:
6315 return error;
6316 }
6317
6318 /**
6319 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6320 * @phba: pointer to lpfc hba data structure.
6321 *
6322 * This routine is invoked to unset the PCI device memory space for device
6323 * with SLI-3 interface spec.
6324 **/
6325 static void
lpfc_sli_pci_mem_unset(struct lpfc_hba * phba)6326 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6327 {
6328 struct pci_dev *pdev;
6329
6330 /* Obtain PCI device reference */
6331 if (!phba->pcidev)
6332 return;
6333 else
6334 pdev = phba->pcidev;
6335
6336 /* Free coherent DMA memory allocated */
6337 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6338 phba->hbqslimp.virt, phba->hbqslimp.phys);
6339 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6340 phba->slim2p.virt, phba->slim2p.phys);
6341
6342 /* I/O memory unmap */
6343 iounmap(phba->ctrl_regs_memmap_p);
6344 iounmap(phba->slim_memmap_p);
6345
6346 return;
6347 }
6348
6349 /**
6350 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6351 * @phba: pointer to lpfc hba data structure.
6352 *
6353 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6354 * done and check status.
6355 *
6356 * Return 0 if successful, otherwise -ENODEV.
6357 **/
6358 int
lpfc_sli4_post_status_check(struct lpfc_hba * phba)6359 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6360 {
6361 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6362 struct lpfc_register reg_data;
6363 int i, port_error = 0;
6364 uint32_t if_type;
6365
6366 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6367 memset(®_data, 0, sizeof(reg_data));
6368 if (!phba->sli4_hba.PSMPHRregaddr)
6369 return -ENODEV;
6370
6371 /* Wait up to 30 seconds for the SLI Port POST done and ready */
6372 for (i = 0; i < 3000; i++) {
6373 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6374 &portsmphr_reg.word0) ||
6375 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6376 /* Port has a fatal POST error, break out */
6377 port_error = -ENODEV;
6378 break;
6379 }
6380 if (LPFC_POST_STAGE_PORT_READY ==
6381 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6382 break;
6383 msleep(10);
6384 }
6385
6386 /*
6387 * If there was a port error during POST, then don't proceed with
6388 * other register reads as the data may not be valid. Just exit.
6389 */
6390 if (port_error) {
6391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6392 "1408 Port Failed POST - portsmphr=0x%x, "
6393 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6394 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6395 portsmphr_reg.word0,
6396 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6397 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6398 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6399 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6400 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6401 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6402 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6403 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6404 } else {
6405 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6406 "2534 Device Info: SLIFamily=0x%x, "
6407 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6408 "SLIHint_2=0x%x, FT=0x%x\n",
6409 bf_get(lpfc_sli_intf_sli_family,
6410 &phba->sli4_hba.sli_intf),
6411 bf_get(lpfc_sli_intf_slirev,
6412 &phba->sli4_hba.sli_intf),
6413 bf_get(lpfc_sli_intf_if_type,
6414 &phba->sli4_hba.sli_intf),
6415 bf_get(lpfc_sli_intf_sli_hint1,
6416 &phba->sli4_hba.sli_intf),
6417 bf_get(lpfc_sli_intf_sli_hint2,
6418 &phba->sli4_hba.sli_intf),
6419 bf_get(lpfc_sli_intf_func_type,
6420 &phba->sli4_hba.sli_intf));
6421 /*
6422 * Check for other Port errors during the initialization
6423 * process. Fail the load if the port did not come up
6424 * correctly.
6425 */
6426 if_type = bf_get(lpfc_sli_intf_if_type,
6427 &phba->sli4_hba.sli_intf);
6428 switch (if_type) {
6429 case LPFC_SLI_INTF_IF_TYPE_0:
6430 phba->sli4_hba.ue_mask_lo =
6431 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6432 phba->sli4_hba.ue_mask_hi =
6433 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6434 uerrlo_reg.word0 =
6435 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6436 uerrhi_reg.word0 =
6437 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6438 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6439 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6440 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6441 "1422 Unrecoverable Error "
6442 "Detected during POST "
6443 "uerr_lo_reg=0x%x, "
6444 "uerr_hi_reg=0x%x, "
6445 "ue_mask_lo_reg=0x%x, "
6446 "ue_mask_hi_reg=0x%x\n",
6447 uerrlo_reg.word0,
6448 uerrhi_reg.word0,
6449 phba->sli4_hba.ue_mask_lo,
6450 phba->sli4_hba.ue_mask_hi);
6451 port_error = -ENODEV;
6452 }
6453 break;
6454 case LPFC_SLI_INTF_IF_TYPE_2:
6455 /* Final checks. The port status should be clean. */
6456 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6457 ®_data.word0) ||
6458 (bf_get(lpfc_sliport_status_err, ®_data) &&
6459 !bf_get(lpfc_sliport_status_rn, ®_data))) {
6460 phba->work_status[0] =
6461 readl(phba->sli4_hba.u.if_type2.
6462 ERR1regaddr);
6463 phba->work_status[1] =
6464 readl(phba->sli4_hba.u.if_type2.
6465 ERR2regaddr);
6466 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6467 "2888 Unrecoverable port error "
6468 "following POST: port status reg "
6469 "0x%x, port_smphr reg 0x%x, "
6470 "error 1=0x%x, error 2=0x%x\n",
6471 reg_data.word0,
6472 portsmphr_reg.word0,
6473 phba->work_status[0],
6474 phba->work_status[1]);
6475 port_error = -ENODEV;
6476 }
6477 break;
6478 case LPFC_SLI_INTF_IF_TYPE_1:
6479 default:
6480 break;
6481 }
6482 }
6483 return port_error;
6484 }
6485
6486 /**
6487 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6488 * @phba: pointer to lpfc hba data structure.
6489 * @if_type: The SLI4 interface type getting configured.
6490 *
6491 * This routine is invoked to set up SLI4 BAR0 PCI config space register
6492 * memory map.
6493 **/
6494 static void
lpfc_sli4_bar0_register_memmap(struct lpfc_hba * phba,uint32_t if_type)6495 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6496 {
6497 switch (if_type) {
6498 case LPFC_SLI_INTF_IF_TYPE_0:
6499 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6500 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6501 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6502 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6503 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6504 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6505 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6506 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6507 phba->sli4_hba.SLIINTFregaddr =
6508 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6509 break;
6510 case LPFC_SLI_INTF_IF_TYPE_2:
6511 phba->sli4_hba.u.if_type2.ERR1regaddr =
6512 phba->sli4_hba.conf_regs_memmap_p +
6513 LPFC_CTL_PORT_ER1_OFFSET;
6514 phba->sli4_hba.u.if_type2.ERR2regaddr =
6515 phba->sli4_hba.conf_regs_memmap_p +
6516 LPFC_CTL_PORT_ER2_OFFSET;
6517 phba->sli4_hba.u.if_type2.CTRLregaddr =
6518 phba->sli4_hba.conf_regs_memmap_p +
6519 LPFC_CTL_PORT_CTL_OFFSET;
6520 phba->sli4_hba.u.if_type2.STATUSregaddr =
6521 phba->sli4_hba.conf_regs_memmap_p +
6522 LPFC_CTL_PORT_STA_OFFSET;
6523 phba->sli4_hba.SLIINTFregaddr =
6524 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6525 phba->sli4_hba.PSMPHRregaddr =
6526 phba->sli4_hba.conf_regs_memmap_p +
6527 LPFC_CTL_PORT_SEM_OFFSET;
6528 phba->sli4_hba.RQDBregaddr =
6529 phba->sli4_hba.conf_regs_memmap_p +
6530 LPFC_ULP0_RQ_DOORBELL;
6531 phba->sli4_hba.WQDBregaddr =
6532 phba->sli4_hba.conf_regs_memmap_p +
6533 LPFC_ULP0_WQ_DOORBELL;
6534 phba->sli4_hba.EQCQDBregaddr =
6535 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6536 phba->sli4_hba.MQDBregaddr =
6537 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6538 phba->sli4_hba.BMBXregaddr =
6539 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6540 break;
6541 case LPFC_SLI_INTF_IF_TYPE_1:
6542 default:
6543 dev_printk(KERN_ERR, &phba->pcidev->dev,
6544 "FATAL - unsupported SLI4 interface type - %d\n",
6545 if_type);
6546 break;
6547 }
6548 }
6549
6550 /**
6551 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6552 * @phba: pointer to lpfc hba data structure.
6553 *
6554 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6555 * memory map.
6556 **/
6557 static void
lpfc_sli4_bar1_register_memmap(struct lpfc_hba * phba)6558 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6559 {
6560 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6561 LPFC_SLIPORT_IF0_SMPHR;
6562 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6563 LPFC_HST_ISR0;
6564 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6565 LPFC_HST_IMR0;
6566 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6567 LPFC_HST_ISCR0;
6568 }
6569
6570 /**
6571 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6572 * @phba: pointer to lpfc hba data structure.
6573 * @vf: virtual function number
6574 *
6575 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6576 * based on the given viftual function number, @vf.
6577 *
6578 * Return 0 if successful, otherwise -ENODEV.
6579 **/
6580 static int
lpfc_sli4_bar2_register_memmap(struct lpfc_hba * phba,uint32_t vf)6581 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6582 {
6583 if (vf > LPFC_VIR_FUNC_MAX)
6584 return -ENODEV;
6585
6586 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6587 vf * LPFC_VFR_PAGE_SIZE +
6588 LPFC_ULP0_RQ_DOORBELL);
6589 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6590 vf * LPFC_VFR_PAGE_SIZE +
6591 LPFC_ULP0_WQ_DOORBELL);
6592 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6593 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6594 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6595 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6596 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6597 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6598 return 0;
6599 }
6600
6601 /**
6602 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6603 * @phba: pointer to lpfc hba data structure.
6604 *
6605 * This routine is invoked to create the bootstrap mailbox
6606 * region consistent with the SLI-4 interface spec. This
6607 * routine allocates all memory necessary to communicate
6608 * mailbox commands to the port and sets up all alignment
6609 * needs. No locks are expected to be held when calling
6610 * this routine.
6611 *
6612 * Return codes
6613 * 0 - successful
6614 * -ENOMEM - could not allocated memory.
6615 **/
6616 static int
lpfc_create_bootstrap_mbox(struct lpfc_hba * phba)6617 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6618 {
6619 uint32_t bmbx_size;
6620 struct lpfc_dmabuf *dmabuf;
6621 struct dma_address *dma_address;
6622 uint32_t pa_addr;
6623 uint64_t phys_addr;
6624
6625 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6626 if (!dmabuf)
6627 return -ENOMEM;
6628
6629 /*
6630 * The bootstrap mailbox region is comprised of 2 parts
6631 * plus an alignment restriction of 16 bytes.
6632 */
6633 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6634 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
6635 &dmabuf->phys, GFP_KERNEL);
6636 if (!dmabuf->virt) {
6637 kfree(dmabuf);
6638 return -ENOMEM;
6639 }
6640
6641 /*
6642 * Initialize the bootstrap mailbox pointers now so that the register
6643 * operations are simple later. The mailbox dma address is required
6644 * to be 16-byte aligned. Also align the virtual memory as each
6645 * maibox is copied into the bmbx mailbox region before issuing the
6646 * command to the port.
6647 */
6648 phba->sli4_hba.bmbx.dmabuf = dmabuf;
6649 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6650
6651 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6652 LPFC_ALIGN_16_BYTE);
6653 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6654 LPFC_ALIGN_16_BYTE);
6655
6656 /*
6657 * Set the high and low physical addresses now. The SLI4 alignment
6658 * requirement is 16 bytes and the mailbox is posted to the port
6659 * as two 30-bit addresses. The other data is a bit marking whether
6660 * the 30-bit address is the high or low address.
6661 * Upcast bmbx aphys to 64bits so shift instruction compiles
6662 * clean on 32 bit machines.
6663 */
6664 dma_address = &phba->sli4_hba.bmbx.dma_address;
6665 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6666 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6667 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6668 LPFC_BMBX_BIT1_ADDR_HI);
6669
6670 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6671 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6672 LPFC_BMBX_BIT1_ADDR_LO);
6673 return 0;
6674 }
6675
6676 /**
6677 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6678 * @phba: pointer to lpfc hba data structure.
6679 *
6680 * This routine is invoked to teardown the bootstrap mailbox
6681 * region and release all host resources. This routine requires
6682 * the caller to ensure all mailbox commands recovered, no
6683 * additional mailbox comands are sent, and interrupts are disabled
6684 * before calling this routine.
6685 *
6686 **/
6687 static void
lpfc_destroy_bootstrap_mbox(struct lpfc_hba * phba)6688 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6689 {
6690 dma_free_coherent(&phba->pcidev->dev,
6691 phba->sli4_hba.bmbx.bmbx_size,
6692 phba->sli4_hba.bmbx.dmabuf->virt,
6693 phba->sli4_hba.bmbx.dmabuf->phys);
6694
6695 kfree(phba->sli4_hba.bmbx.dmabuf);
6696 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6697 }
6698
6699 /**
6700 * lpfc_sli4_read_config - Get the config parameters.
6701 * @phba: pointer to lpfc hba data structure.
6702 *
6703 * This routine is invoked to read the configuration parameters from the HBA.
6704 * The configuration parameters are used to set the base and maximum values
6705 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6706 * allocation for the port.
6707 *
6708 * Return codes
6709 * 0 - successful
6710 * -ENOMEM - No available memory
6711 * -EIO - The mailbox failed to complete successfully.
6712 **/
6713 int
lpfc_sli4_read_config(struct lpfc_hba * phba)6714 lpfc_sli4_read_config(struct lpfc_hba *phba)
6715 {
6716 LPFC_MBOXQ_t *pmb;
6717 struct lpfc_mbx_read_config *rd_config;
6718 union lpfc_sli4_cfg_shdr *shdr;
6719 uint32_t shdr_status, shdr_add_status;
6720 struct lpfc_mbx_get_func_cfg *get_func_cfg;
6721 struct lpfc_rsrc_desc_fcfcoe *desc;
6722 char *pdesc_0;
6723 int length, i, rc = 0, rc2;
6724
6725 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6726 if (!pmb) {
6727 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6728 "2011 Unable to allocate memory for issuing "
6729 "SLI_CONFIG_SPECIAL mailbox command\n");
6730 return -ENOMEM;
6731 }
6732
6733 lpfc_read_config(phba, pmb);
6734
6735 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6736 if (rc != MBX_SUCCESS) {
6737 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6738 "2012 Mailbox failed , mbxCmd x%x "
6739 "READ_CONFIG, mbxStatus x%x\n",
6740 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6741 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6742 rc = -EIO;
6743 } else {
6744 rd_config = &pmb->u.mqe.un.rd_config;
6745 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6746 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6747 phba->sli4_hba.lnk_info.lnk_tp =
6748 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6749 phba->sli4_hba.lnk_info.lnk_no =
6750 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6751 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6752 "3081 lnk_type:%d, lnk_numb:%d\n",
6753 phba->sli4_hba.lnk_info.lnk_tp,
6754 phba->sli4_hba.lnk_info.lnk_no);
6755 } else
6756 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6757 "3082 Mailbox (x%x) returned ldv:x0\n",
6758 bf_get(lpfc_mqe_command, &pmb->u.mqe));
6759 phba->sli4_hba.extents_in_use =
6760 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6761 phba->sli4_hba.max_cfg_param.max_xri =
6762 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6763 phba->sli4_hba.max_cfg_param.xri_base =
6764 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6765 phba->sli4_hba.max_cfg_param.max_vpi =
6766 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6767 phba->sli4_hba.max_cfg_param.vpi_base =
6768 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6769 phba->sli4_hba.max_cfg_param.max_rpi =
6770 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6771 phba->sli4_hba.max_cfg_param.rpi_base =
6772 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6773 phba->sli4_hba.max_cfg_param.max_vfi =
6774 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6775 phba->sli4_hba.max_cfg_param.vfi_base =
6776 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6777 phba->sli4_hba.max_cfg_param.max_fcfi =
6778 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6779 phba->sli4_hba.max_cfg_param.max_eq =
6780 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6781 phba->sli4_hba.max_cfg_param.max_rq =
6782 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6783 phba->sli4_hba.max_cfg_param.max_wq =
6784 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6785 phba->sli4_hba.max_cfg_param.max_cq =
6786 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6787 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6788 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6789 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6790 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6791 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6792 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6793 phba->max_vports = phba->max_vpi;
6794 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6795 "2003 cfg params Extents? %d "
6796 "XRI(B:%d M:%d), "
6797 "VPI(B:%d M:%d) "
6798 "VFI(B:%d M:%d) "
6799 "RPI(B:%d M:%d) "
6800 "FCFI(Count:%d)\n",
6801 phba->sli4_hba.extents_in_use,
6802 phba->sli4_hba.max_cfg_param.xri_base,
6803 phba->sli4_hba.max_cfg_param.max_xri,
6804 phba->sli4_hba.max_cfg_param.vpi_base,
6805 phba->sli4_hba.max_cfg_param.max_vpi,
6806 phba->sli4_hba.max_cfg_param.vfi_base,
6807 phba->sli4_hba.max_cfg_param.max_vfi,
6808 phba->sli4_hba.max_cfg_param.rpi_base,
6809 phba->sli4_hba.max_cfg_param.max_rpi,
6810 phba->sli4_hba.max_cfg_param.max_fcfi);
6811 }
6812
6813 if (rc)
6814 goto read_cfg_out;
6815
6816 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
6817 length = phba->sli4_hba.max_cfg_param.max_xri -
6818 lpfc_sli4_get_els_iocb_cnt(phba);
6819 if (phba->cfg_hba_queue_depth > length) {
6820 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6821 "3361 HBA queue depth changed from %d to %d\n",
6822 phba->cfg_hba_queue_depth, length);
6823 phba->cfg_hba_queue_depth = length;
6824 }
6825
6826 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6827 LPFC_SLI_INTF_IF_TYPE_2)
6828 goto read_cfg_out;
6829
6830 /* get the pf# and vf# for SLI4 if_type 2 port */
6831 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6832 sizeof(struct lpfc_sli4_cfg_mhdr));
6833 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6834 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6835 length, LPFC_SLI4_MBX_EMBED);
6836
6837 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6838 shdr = (union lpfc_sli4_cfg_shdr *)
6839 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6840 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6841 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6842 if (rc2 || shdr_status || shdr_add_status) {
6843 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6844 "3026 Mailbox failed , mbxCmd x%x "
6845 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6846 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6847 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6848 goto read_cfg_out;
6849 }
6850
6851 /* search for fc_fcoe resrouce descriptor */
6852 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6853
6854 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6855 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6856 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6857 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6858 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6859 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6860 goto read_cfg_out;
6861
6862 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6863 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6864 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6865 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6866 phba->sli4_hba.iov.pf_number =
6867 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6868 phba->sli4_hba.iov.vf_number =
6869 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6870 break;
6871 }
6872 }
6873
6874 if (i < LPFC_RSRC_DESC_MAX_NUM)
6875 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6876 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6877 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6878 phba->sli4_hba.iov.vf_number);
6879 else
6880 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6881 "3028 GET_FUNCTION_CONFIG: failed to find "
6882 "Resrouce Descriptor:x%x\n",
6883 LPFC_RSRC_DESC_TYPE_FCFCOE);
6884
6885 read_cfg_out:
6886 mempool_free(pmb, phba->mbox_mem_pool);
6887 return rc;
6888 }
6889
6890 /**
6891 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6892 * @phba: pointer to lpfc hba data structure.
6893 *
6894 * This routine is invoked to setup the port-side endian order when
6895 * the port if_type is 0. This routine has no function for other
6896 * if_types.
6897 *
6898 * Return codes
6899 * 0 - successful
6900 * -ENOMEM - No available memory
6901 * -EIO - The mailbox failed to complete successfully.
6902 **/
6903 static int
lpfc_setup_endian_order(struct lpfc_hba * phba)6904 lpfc_setup_endian_order(struct lpfc_hba *phba)
6905 {
6906 LPFC_MBOXQ_t *mboxq;
6907 uint32_t if_type, rc = 0;
6908 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6909 HOST_ENDIAN_HIGH_WORD1};
6910
6911 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6912 switch (if_type) {
6913 case LPFC_SLI_INTF_IF_TYPE_0:
6914 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6915 GFP_KERNEL);
6916 if (!mboxq) {
6917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6918 "0492 Unable to allocate memory for "
6919 "issuing SLI_CONFIG_SPECIAL mailbox "
6920 "command\n");
6921 return -ENOMEM;
6922 }
6923
6924 /*
6925 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6926 * two words to contain special data values and no other data.
6927 */
6928 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6929 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6930 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6931 if (rc != MBX_SUCCESS) {
6932 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6933 "0493 SLI_CONFIG_SPECIAL mailbox "
6934 "failed with status x%x\n",
6935 rc);
6936 rc = -EIO;
6937 }
6938 mempool_free(mboxq, phba->mbox_mem_pool);
6939 break;
6940 case LPFC_SLI_INTF_IF_TYPE_2:
6941 case LPFC_SLI_INTF_IF_TYPE_1:
6942 default:
6943 break;
6944 }
6945 return rc;
6946 }
6947
6948 /**
6949 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6950 * @phba: pointer to lpfc hba data structure.
6951 *
6952 * This routine is invoked to check the user settable queue counts for EQs and
6953 * CQs. after this routine is called the counts will be set to valid values that
6954 * adhere to the constraints of the system's interrupt vectors and the port's
6955 * queue resources.
6956 *
6957 * Return codes
6958 * 0 - successful
6959 * -ENOMEM - No available memory
6960 **/
6961 static int
lpfc_sli4_queue_verify(struct lpfc_hba * phba)6962 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
6963 {
6964 int cfg_fcp_io_channel;
6965 uint32_t cpu;
6966 uint32_t i = 0;
6967 int fof_vectors = phba->cfg_fof ? 1 : 0;
6968
6969 /*
6970 * Sanity check for configured queue parameters against the run-time
6971 * device parameters
6972 */
6973
6974 /* Sanity check on HBA EQ parameters */
6975 cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
6976
6977 /* It doesn't make sense to have more io channels then online CPUs */
6978 for_each_present_cpu(cpu) {
6979 if (cpu_online(cpu))
6980 i++;
6981 }
6982 phba->sli4_hba.num_online_cpu = i;
6983 phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6984 phba->sli4_hba.curr_disp_cpu = 0;
6985
6986 if (i < cfg_fcp_io_channel) {
6987 lpfc_printf_log(phba,
6988 KERN_ERR, LOG_INIT,
6989 "3188 Reducing IO channels to match number of "
6990 "online CPUs: from %d to %d\n",
6991 cfg_fcp_io_channel, i);
6992 cfg_fcp_io_channel = i;
6993 }
6994
6995 if (cfg_fcp_io_channel + fof_vectors >
6996 phba->sli4_hba.max_cfg_param.max_eq) {
6997 if (phba->sli4_hba.max_cfg_param.max_eq <
6998 LPFC_FCP_IO_CHAN_MIN) {
6999 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7000 "2574 Not enough EQs (%d) from the "
7001 "pci function for supporting FCP "
7002 "EQs (%d)\n",
7003 phba->sli4_hba.max_cfg_param.max_eq,
7004 phba->cfg_fcp_io_channel);
7005 goto out_error;
7006 }
7007 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7008 "2575 Reducing IO channels to match number of "
7009 "available EQs: from %d to %d\n",
7010 cfg_fcp_io_channel,
7011 phba->sli4_hba.max_cfg_param.max_eq);
7012 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7013 fof_vectors;
7014 }
7015
7016 /* The actual number of FCP event queues adopted */
7017 phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7018
7019 /* Get EQ depth from module parameter, fake the default for now */
7020 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7021 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7022
7023 /* Get CQ depth from module parameter, fake the default for now */
7024 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7025 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7026
7027 return 0;
7028 out_error:
7029 return -ENOMEM;
7030 }
7031
7032 /**
7033 * lpfc_sli4_queue_create - Create all the SLI4 queues
7034 * @phba: pointer to lpfc hba data structure.
7035 *
7036 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7037 * operation. For each SLI4 queue type, the parameters such as queue entry
7038 * count (queue depth) shall be taken from the module parameter. For now,
7039 * we just use some constant number as place holder.
7040 *
7041 * Return codes
7042 * 0 - successful
7043 * -ENOMEM - No availble memory
7044 * -EIO - The mailbox failed to complete successfully.
7045 **/
7046 int
lpfc_sli4_queue_create(struct lpfc_hba * phba)7047 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7048 {
7049 struct lpfc_queue *qdesc;
7050 int idx;
7051
7052 /*
7053 * Create HBA Record arrays.
7054 */
7055 if (!phba->cfg_fcp_io_channel)
7056 return -ERANGE;
7057
7058 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7059 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7060 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7061 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7062 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7063 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7064
7065 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) *
7066 phba->cfg_fcp_io_channel), GFP_KERNEL);
7067 if (!phba->sli4_hba.hba_eq) {
7068 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7069 "2576 Failed allocate memory for "
7070 "fast-path EQ record array\n");
7071 goto out_error;
7072 }
7073
7074 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7075 phba->cfg_fcp_io_channel), GFP_KERNEL);
7076 if (!phba->sli4_hba.fcp_cq) {
7077 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7078 "2577 Failed allocate memory for fast-path "
7079 "CQ record array\n");
7080 goto out_error;
7081 }
7082
7083 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7084 phba->cfg_fcp_io_channel), GFP_KERNEL);
7085 if (!phba->sli4_hba.fcp_wq) {
7086 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7087 "2578 Failed allocate memory for fast-path "
7088 "WQ record array\n");
7089 goto out_error;
7090 }
7091
7092 /*
7093 * Since the first EQ can have multiple CQs associated with it,
7094 * this array is used to quickly see if we have a FCP fast-path
7095 * CQ match.
7096 */
7097 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7098 phba->cfg_fcp_io_channel), GFP_KERNEL);
7099 if (!phba->sli4_hba.fcp_cq_map) {
7100 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7101 "2545 Failed allocate memory for fast-path "
7102 "CQ map\n");
7103 goto out_error;
7104 }
7105
7106 /*
7107 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies
7108 * how many EQs to create.
7109 */
7110 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7111
7112 /* Create EQs */
7113 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7114 phba->sli4_hba.eq_ecount);
7115 if (!qdesc) {
7116 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7117 "0497 Failed allocate EQ (%d)\n", idx);
7118 goto out_error;
7119 }
7120 phba->sli4_hba.hba_eq[idx] = qdesc;
7121
7122 /* Create Fast Path FCP CQs */
7123 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7124 phba->sli4_hba.cq_ecount);
7125 if (!qdesc) {
7126 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7127 "0499 Failed allocate fast-path FCP "
7128 "CQ (%d)\n", idx);
7129 goto out_error;
7130 }
7131 phba->sli4_hba.fcp_cq[idx] = qdesc;
7132
7133 /* Create Fast Path FCP WQs */
7134 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7135 phba->sli4_hba.wq_ecount);
7136 if (!qdesc) {
7137 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7138 "0503 Failed allocate fast-path FCP "
7139 "WQ (%d)\n", idx);
7140 goto out_error;
7141 }
7142 phba->sli4_hba.fcp_wq[idx] = qdesc;
7143 }
7144
7145
7146 /*
7147 * Create Slow Path Completion Queues (CQs)
7148 */
7149
7150 /* Create slow-path Mailbox Command Complete Queue */
7151 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7152 phba->sli4_hba.cq_ecount);
7153 if (!qdesc) {
7154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7155 "0500 Failed allocate slow-path mailbox CQ\n");
7156 goto out_error;
7157 }
7158 phba->sli4_hba.mbx_cq = qdesc;
7159
7160 /* Create slow-path ELS Complete Queue */
7161 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7162 phba->sli4_hba.cq_ecount);
7163 if (!qdesc) {
7164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7165 "0501 Failed allocate slow-path ELS CQ\n");
7166 goto out_error;
7167 }
7168 phba->sli4_hba.els_cq = qdesc;
7169
7170
7171 /*
7172 * Create Slow Path Work Queues (WQs)
7173 */
7174
7175 /* Create Mailbox Command Queue */
7176
7177 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7178 phba->sli4_hba.mq_ecount);
7179 if (!qdesc) {
7180 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7181 "0505 Failed allocate slow-path MQ\n");
7182 goto out_error;
7183 }
7184 phba->sli4_hba.mbx_wq = qdesc;
7185
7186 /*
7187 * Create ELS Work Queues
7188 */
7189
7190 /* Create slow-path ELS Work Queue */
7191 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7192 phba->sli4_hba.wq_ecount);
7193 if (!qdesc) {
7194 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7195 "0504 Failed allocate slow-path ELS WQ\n");
7196 goto out_error;
7197 }
7198 phba->sli4_hba.els_wq = qdesc;
7199
7200 /*
7201 * Create Receive Queue (RQ)
7202 */
7203
7204 /* Create Receive Queue for header */
7205 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7206 phba->sli4_hba.rq_ecount);
7207 if (!qdesc) {
7208 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7209 "0506 Failed allocate receive HRQ\n");
7210 goto out_error;
7211 }
7212 phba->sli4_hba.hdr_rq = qdesc;
7213
7214 /* Create Receive Queue for data */
7215 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7216 phba->sli4_hba.rq_ecount);
7217 if (!qdesc) {
7218 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7219 "0507 Failed allocate receive DRQ\n");
7220 goto out_error;
7221 }
7222 phba->sli4_hba.dat_rq = qdesc;
7223
7224 /* Create the Queues needed for Flash Optimized Fabric operations */
7225 if (phba->cfg_fof)
7226 lpfc_fof_queue_create(phba);
7227 return 0;
7228
7229 out_error:
7230 lpfc_sli4_queue_destroy(phba);
7231 return -ENOMEM;
7232 }
7233
7234 /**
7235 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7236 * @phba: pointer to lpfc hba data structure.
7237 *
7238 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7239 * operation.
7240 *
7241 * Return codes
7242 * 0 - successful
7243 * -ENOMEM - No available memory
7244 * -EIO - The mailbox failed to complete successfully.
7245 **/
7246 void
lpfc_sli4_queue_destroy(struct lpfc_hba * phba)7247 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7248 {
7249 int idx;
7250
7251 if (phba->cfg_fof)
7252 lpfc_fof_queue_destroy(phba);
7253
7254 if (phba->sli4_hba.hba_eq != NULL) {
7255 /* Release HBA event queue */
7256 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7257 if (phba->sli4_hba.hba_eq[idx] != NULL) {
7258 lpfc_sli4_queue_free(
7259 phba->sli4_hba.hba_eq[idx]);
7260 phba->sli4_hba.hba_eq[idx] = NULL;
7261 }
7262 }
7263 kfree(phba->sli4_hba.hba_eq);
7264 phba->sli4_hba.hba_eq = NULL;
7265 }
7266
7267 if (phba->sli4_hba.fcp_cq != NULL) {
7268 /* Release FCP completion queue */
7269 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7270 if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7271 lpfc_sli4_queue_free(
7272 phba->sli4_hba.fcp_cq[idx]);
7273 phba->sli4_hba.fcp_cq[idx] = NULL;
7274 }
7275 }
7276 kfree(phba->sli4_hba.fcp_cq);
7277 phba->sli4_hba.fcp_cq = NULL;
7278 }
7279
7280 if (phba->sli4_hba.fcp_wq != NULL) {
7281 /* Release FCP work queue */
7282 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7283 if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7284 lpfc_sli4_queue_free(
7285 phba->sli4_hba.fcp_wq[idx]);
7286 phba->sli4_hba.fcp_wq[idx] = NULL;
7287 }
7288 }
7289 kfree(phba->sli4_hba.fcp_wq);
7290 phba->sli4_hba.fcp_wq = NULL;
7291 }
7292
7293 /* Release FCP CQ mapping array */
7294 if (phba->sli4_hba.fcp_cq_map != NULL) {
7295 kfree(phba->sli4_hba.fcp_cq_map);
7296 phba->sli4_hba.fcp_cq_map = NULL;
7297 }
7298
7299 /* Release mailbox command work queue */
7300 if (phba->sli4_hba.mbx_wq != NULL) {
7301 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7302 phba->sli4_hba.mbx_wq = NULL;
7303 }
7304
7305 /* Release ELS work queue */
7306 if (phba->sli4_hba.els_wq != NULL) {
7307 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7308 phba->sli4_hba.els_wq = NULL;
7309 }
7310
7311 /* Release unsolicited receive queue */
7312 if (phba->sli4_hba.hdr_rq != NULL) {
7313 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7314 phba->sli4_hba.hdr_rq = NULL;
7315 }
7316 if (phba->sli4_hba.dat_rq != NULL) {
7317 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7318 phba->sli4_hba.dat_rq = NULL;
7319 }
7320
7321 /* Release ELS complete queue */
7322 if (phba->sli4_hba.els_cq != NULL) {
7323 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7324 phba->sli4_hba.els_cq = NULL;
7325 }
7326
7327 /* Release mailbox command complete queue */
7328 if (phba->sli4_hba.mbx_cq != NULL) {
7329 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7330 phba->sli4_hba.mbx_cq = NULL;
7331 }
7332
7333 return;
7334 }
7335
7336 /**
7337 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7338 * @phba: pointer to lpfc hba data structure.
7339 *
7340 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7341 * operation.
7342 *
7343 * Return codes
7344 * 0 - successful
7345 * -ENOMEM - No available memory
7346 * -EIO - The mailbox failed to complete successfully.
7347 **/
7348 int
lpfc_sli4_queue_setup(struct lpfc_hba * phba)7349 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7350 {
7351 struct lpfc_sli *psli = &phba->sli;
7352 struct lpfc_sli_ring *pring;
7353 int rc = -ENOMEM;
7354 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7355 int fcp_cq_index = 0;
7356 uint32_t shdr_status, shdr_add_status;
7357 union lpfc_sli4_cfg_shdr *shdr;
7358 LPFC_MBOXQ_t *mboxq;
7359 uint32_t length;
7360
7361 /* Check for dual-ULP support */
7362 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7363 if (!mboxq) {
7364 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7365 "3249 Unable to allocate memory for "
7366 "QUERY_FW_CFG mailbox command\n");
7367 return -ENOMEM;
7368 }
7369 length = (sizeof(struct lpfc_mbx_query_fw_config) -
7370 sizeof(struct lpfc_sli4_cfg_mhdr));
7371 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7372 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7373 length, LPFC_SLI4_MBX_EMBED);
7374
7375 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7376
7377 shdr = (union lpfc_sli4_cfg_shdr *)
7378 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7379 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7380 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7381 if (shdr_status || shdr_add_status || rc) {
7382 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7383 "3250 QUERY_FW_CFG mailbox failed with status "
7384 "x%x add_status x%x, mbx status x%x\n",
7385 shdr_status, shdr_add_status, rc);
7386 if (rc != MBX_TIMEOUT)
7387 mempool_free(mboxq, phba->mbox_mem_pool);
7388 rc = -ENXIO;
7389 goto out_error;
7390 }
7391
7392 phba->sli4_hba.fw_func_mode =
7393 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7394 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7395 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7396 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7397 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7398 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7399 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7400
7401 if (rc != MBX_TIMEOUT)
7402 mempool_free(mboxq, phba->mbox_mem_pool);
7403
7404 /*
7405 * Set up HBA Event Queues (EQs)
7406 */
7407
7408 /* Set up HBA event queue */
7409 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7411 "3147 Fast-path EQs not allocated\n");
7412 rc = -ENOMEM;
7413 goto out_error;
7414 }
7415 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7416 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7418 "0522 Fast-path EQ (%d) not "
7419 "allocated\n", fcp_eqidx);
7420 rc = -ENOMEM;
7421 goto out_destroy_hba_eq;
7422 }
7423 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7424 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7425 if (rc) {
7426 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7427 "0523 Failed setup of fast-path EQ "
7428 "(%d), rc = 0x%x\n", fcp_eqidx,
7429 (uint32_t)rc);
7430 goto out_destroy_hba_eq;
7431 }
7432 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7433 "2584 HBA EQ setup: "
7434 "queue[%d]-id=%d\n", fcp_eqidx,
7435 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7436 }
7437
7438 /* Set up fast-path FCP Response Complete Queue */
7439 if (!phba->sli4_hba.fcp_cq) {
7440 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7441 "3148 Fast-path FCP CQ array not "
7442 "allocated\n");
7443 rc = -ENOMEM;
7444 goto out_destroy_hba_eq;
7445 }
7446
7447 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7448 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7449 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7450 "0526 Fast-path FCP CQ (%d) not "
7451 "allocated\n", fcp_cqidx);
7452 rc = -ENOMEM;
7453 goto out_destroy_fcp_cq;
7454 }
7455 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7456 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7457 if (rc) {
7458 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7459 "0527 Failed setup of fast-path FCP "
7460 "CQ (%d), rc = 0x%x\n", fcp_cqidx,
7461 (uint32_t)rc);
7462 goto out_destroy_fcp_cq;
7463 }
7464
7465 /* Setup fcp_cq_map for fast lookup */
7466 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7467 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7468
7469 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7470 "2588 FCP CQ setup: cq[%d]-id=%d, "
7471 "parent seq[%d]-id=%d\n",
7472 fcp_cqidx,
7473 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7474 fcp_cqidx,
7475 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7476 }
7477
7478 /* Set up fast-path FCP Work Queue */
7479 if (!phba->sli4_hba.fcp_wq) {
7480 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7481 "3149 Fast-path FCP WQ array not "
7482 "allocated\n");
7483 rc = -ENOMEM;
7484 goto out_destroy_fcp_cq;
7485 }
7486
7487 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7488 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7489 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7490 "0534 Fast-path FCP WQ (%d) not "
7491 "allocated\n", fcp_wqidx);
7492 rc = -ENOMEM;
7493 goto out_destroy_fcp_wq;
7494 }
7495 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7496 phba->sli4_hba.fcp_cq[fcp_wqidx],
7497 LPFC_FCP);
7498 if (rc) {
7499 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7500 "0535 Failed setup of fast-path FCP "
7501 "WQ (%d), rc = 0x%x\n", fcp_wqidx,
7502 (uint32_t)rc);
7503 goto out_destroy_fcp_wq;
7504 }
7505
7506 /* Bind this WQ to the next FCP ring */
7507 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7508 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7509 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7510
7511 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7512 "2591 FCP WQ setup: wq[%d]-id=%d, "
7513 "parent cq[%d]-id=%d\n",
7514 fcp_wqidx,
7515 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7516 fcp_cq_index,
7517 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7518 }
7519 /*
7520 * Set up Complete Queues (CQs)
7521 */
7522
7523 /* Set up slow-path MBOX Complete Queue as the first CQ */
7524 if (!phba->sli4_hba.mbx_cq) {
7525 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7526 "0528 Mailbox CQ not allocated\n");
7527 rc = -ENOMEM;
7528 goto out_destroy_fcp_wq;
7529 }
7530 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7531 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7532 if (rc) {
7533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7534 "0529 Failed setup of slow-path mailbox CQ: "
7535 "rc = 0x%x\n", (uint32_t)rc);
7536 goto out_destroy_fcp_wq;
7537 }
7538 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7539 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7540 phba->sli4_hba.mbx_cq->queue_id,
7541 phba->sli4_hba.hba_eq[0]->queue_id);
7542
7543 /* Set up slow-path ELS Complete Queue */
7544 if (!phba->sli4_hba.els_cq) {
7545 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7546 "0530 ELS CQ not allocated\n");
7547 rc = -ENOMEM;
7548 goto out_destroy_mbx_cq;
7549 }
7550 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7551 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7552 if (rc) {
7553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7554 "0531 Failed setup of slow-path ELS CQ: "
7555 "rc = 0x%x\n", (uint32_t)rc);
7556 goto out_destroy_mbx_cq;
7557 }
7558 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7559 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7560 phba->sli4_hba.els_cq->queue_id,
7561 phba->sli4_hba.hba_eq[0]->queue_id);
7562
7563 /*
7564 * Set up all the Work Queues (WQs)
7565 */
7566
7567 /* Set up Mailbox Command Queue */
7568 if (!phba->sli4_hba.mbx_wq) {
7569 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7570 "0538 Slow-path MQ not allocated\n");
7571 rc = -ENOMEM;
7572 goto out_destroy_els_cq;
7573 }
7574 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7575 phba->sli4_hba.mbx_cq, LPFC_MBOX);
7576 if (rc) {
7577 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7578 "0539 Failed setup of slow-path MQ: "
7579 "rc = 0x%x\n", rc);
7580 goto out_destroy_els_cq;
7581 }
7582 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7583 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7584 phba->sli4_hba.mbx_wq->queue_id,
7585 phba->sli4_hba.mbx_cq->queue_id);
7586
7587 /* Set up slow-path ELS Work Queue */
7588 if (!phba->sli4_hba.els_wq) {
7589 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7590 "0536 Slow-path ELS WQ not allocated\n");
7591 rc = -ENOMEM;
7592 goto out_destroy_mbx_wq;
7593 }
7594 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7595 phba->sli4_hba.els_cq, LPFC_ELS);
7596 if (rc) {
7597 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7598 "0537 Failed setup of slow-path ELS WQ: "
7599 "rc = 0x%x\n", (uint32_t)rc);
7600 goto out_destroy_mbx_wq;
7601 }
7602
7603 /* Bind this WQ to the ELS ring */
7604 pring = &psli->ring[LPFC_ELS_RING];
7605 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7606 phba->sli4_hba.els_cq->pring = pring;
7607
7608 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7609 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7610 phba->sli4_hba.els_wq->queue_id,
7611 phba->sli4_hba.els_cq->queue_id);
7612
7613 /*
7614 * Create Receive Queue (RQ)
7615 */
7616 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7617 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7618 "0540 Receive Queue not allocated\n");
7619 rc = -ENOMEM;
7620 goto out_destroy_els_wq;
7621 }
7622
7623 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7624 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7625
7626 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7627 phba->sli4_hba.els_cq, LPFC_USOL);
7628 if (rc) {
7629 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7630 "0541 Failed setup of Receive Queue: "
7631 "rc = 0x%x\n", (uint32_t)rc);
7632 goto out_destroy_fcp_wq;
7633 }
7634
7635 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7636 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7637 "parent cq-id=%d\n",
7638 phba->sli4_hba.hdr_rq->queue_id,
7639 phba->sli4_hba.dat_rq->queue_id,
7640 phba->sli4_hba.els_cq->queue_id);
7641
7642 if (phba->cfg_fof) {
7643 rc = lpfc_fof_queue_setup(phba);
7644 if (rc) {
7645 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7646 "0549 Failed setup of FOF Queues: "
7647 "rc = 0x%x\n", rc);
7648 goto out_destroy_els_rq;
7649 }
7650 }
7651 return 0;
7652
7653 out_destroy_els_rq:
7654 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7655 out_destroy_els_wq:
7656 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7657 out_destroy_mbx_wq:
7658 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7659 out_destroy_els_cq:
7660 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7661 out_destroy_mbx_cq:
7662 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7663 out_destroy_fcp_wq:
7664 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7665 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7666 out_destroy_fcp_cq:
7667 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7668 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7669 out_destroy_hba_eq:
7670 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7671 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7672 out_error:
7673 return rc;
7674 }
7675
7676 /**
7677 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7678 * @phba: pointer to lpfc hba data structure.
7679 *
7680 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7681 * operation.
7682 *
7683 * Return codes
7684 * 0 - successful
7685 * -ENOMEM - No available memory
7686 * -EIO - The mailbox failed to complete successfully.
7687 **/
7688 void
lpfc_sli4_queue_unset(struct lpfc_hba * phba)7689 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7690 {
7691 int fcp_qidx;
7692
7693 /* Unset the queues created for Flash Optimized Fabric operations */
7694 if (phba->cfg_fof)
7695 lpfc_fof_queue_destroy(phba);
7696 /* Unset mailbox command work queue */
7697 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7698 /* Unset ELS work queue */
7699 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7700 /* Unset unsolicited receive queue */
7701 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7702 /* Unset FCP work queue */
7703 if (phba->sli4_hba.fcp_wq) {
7704 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7705 fcp_qidx++)
7706 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7707 }
7708 /* Unset mailbox command complete queue */
7709 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7710 /* Unset ELS complete queue */
7711 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7712 /* Unset FCP response complete queue */
7713 if (phba->sli4_hba.fcp_cq) {
7714 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7715 fcp_qidx++)
7716 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7717 }
7718 /* Unset fast-path event queue */
7719 if (phba->sli4_hba.hba_eq) {
7720 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7721 fcp_qidx++)
7722 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7723 }
7724 }
7725
7726 /**
7727 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7728 * @phba: pointer to lpfc hba data structure.
7729 *
7730 * This routine is invoked to allocate and set up a pool of completion queue
7731 * events. The body of the completion queue event is a completion queue entry
7732 * CQE. For now, this pool is used for the interrupt service routine to queue
7733 * the following HBA completion queue events for the worker thread to process:
7734 * - Mailbox asynchronous events
7735 * - Receive queue completion unsolicited events
7736 * Later, this can be used for all the slow-path events.
7737 *
7738 * Return codes
7739 * 0 - successful
7740 * -ENOMEM - No available memory
7741 **/
7742 static int
lpfc_sli4_cq_event_pool_create(struct lpfc_hba * phba)7743 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7744 {
7745 struct lpfc_cq_event *cq_event;
7746 int i;
7747
7748 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7749 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7750 if (!cq_event)
7751 goto out_pool_create_fail;
7752 list_add_tail(&cq_event->list,
7753 &phba->sli4_hba.sp_cqe_event_pool);
7754 }
7755 return 0;
7756
7757 out_pool_create_fail:
7758 lpfc_sli4_cq_event_pool_destroy(phba);
7759 return -ENOMEM;
7760 }
7761
7762 /**
7763 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7764 * @phba: pointer to lpfc hba data structure.
7765 *
7766 * This routine is invoked to free the pool of completion queue events at
7767 * driver unload time. Note that, it is the responsibility of the driver
7768 * cleanup routine to free all the outstanding completion-queue events
7769 * allocated from this pool back into the pool before invoking this routine
7770 * to destroy the pool.
7771 **/
7772 static void
lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba * phba)7773 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7774 {
7775 struct lpfc_cq_event *cq_event, *next_cq_event;
7776
7777 list_for_each_entry_safe(cq_event, next_cq_event,
7778 &phba->sli4_hba.sp_cqe_event_pool, list) {
7779 list_del(&cq_event->list);
7780 kfree(cq_event);
7781 }
7782 }
7783
7784 /**
7785 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7786 * @phba: pointer to lpfc hba data structure.
7787 *
7788 * This routine is the lock free version of the API invoked to allocate a
7789 * completion-queue event from the free pool.
7790 *
7791 * Return: Pointer to the newly allocated completion-queue event if successful
7792 * NULL otherwise.
7793 **/
7794 struct lpfc_cq_event *
__lpfc_sli4_cq_event_alloc(struct lpfc_hba * phba)7795 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7796 {
7797 struct lpfc_cq_event *cq_event = NULL;
7798
7799 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7800 struct lpfc_cq_event, list);
7801 return cq_event;
7802 }
7803
7804 /**
7805 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7806 * @phba: pointer to lpfc hba data structure.
7807 *
7808 * This routine is the lock version of the API invoked to allocate a
7809 * completion-queue event from the free pool.
7810 *
7811 * Return: Pointer to the newly allocated completion-queue event if successful
7812 * NULL otherwise.
7813 **/
7814 struct lpfc_cq_event *
lpfc_sli4_cq_event_alloc(struct lpfc_hba * phba)7815 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7816 {
7817 struct lpfc_cq_event *cq_event;
7818 unsigned long iflags;
7819
7820 spin_lock_irqsave(&phba->hbalock, iflags);
7821 cq_event = __lpfc_sli4_cq_event_alloc(phba);
7822 spin_unlock_irqrestore(&phba->hbalock, iflags);
7823 return cq_event;
7824 }
7825
7826 /**
7827 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7828 * @phba: pointer to lpfc hba data structure.
7829 * @cq_event: pointer to the completion queue event to be freed.
7830 *
7831 * This routine is the lock free version of the API invoked to release a
7832 * completion-queue event back into the free pool.
7833 **/
7834 void
__lpfc_sli4_cq_event_release(struct lpfc_hba * phba,struct lpfc_cq_event * cq_event)7835 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7836 struct lpfc_cq_event *cq_event)
7837 {
7838 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7839 }
7840
7841 /**
7842 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7843 * @phba: pointer to lpfc hba data structure.
7844 * @cq_event: pointer to the completion queue event to be freed.
7845 *
7846 * This routine is the lock version of the API invoked to release a
7847 * completion-queue event back into the free pool.
7848 **/
7849 void
lpfc_sli4_cq_event_release(struct lpfc_hba * phba,struct lpfc_cq_event * cq_event)7850 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7851 struct lpfc_cq_event *cq_event)
7852 {
7853 unsigned long iflags;
7854 spin_lock_irqsave(&phba->hbalock, iflags);
7855 __lpfc_sli4_cq_event_release(phba, cq_event);
7856 spin_unlock_irqrestore(&phba->hbalock, iflags);
7857 }
7858
7859 /**
7860 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7861 * @phba: pointer to lpfc hba data structure.
7862 *
7863 * This routine is to free all the pending completion-queue events to the
7864 * back into the free pool for device reset.
7865 **/
7866 static void
lpfc_sli4_cq_event_release_all(struct lpfc_hba * phba)7867 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7868 {
7869 LIST_HEAD(cqelist);
7870 struct lpfc_cq_event *cqe;
7871 unsigned long iflags;
7872
7873 /* Retrieve all the pending WCQEs from pending WCQE lists */
7874 spin_lock_irqsave(&phba->hbalock, iflags);
7875 /* Pending FCP XRI abort events */
7876 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7877 &cqelist);
7878 /* Pending ELS XRI abort events */
7879 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7880 &cqelist);
7881 /* Pending asynnc events */
7882 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7883 &cqelist);
7884 spin_unlock_irqrestore(&phba->hbalock, iflags);
7885
7886 while (!list_empty(&cqelist)) {
7887 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7888 lpfc_sli4_cq_event_release(phba, cqe);
7889 }
7890 }
7891
7892 /**
7893 * lpfc_pci_function_reset - Reset pci function.
7894 * @phba: pointer to lpfc hba data structure.
7895 *
7896 * This routine is invoked to request a PCI function reset. It will destroys
7897 * all resources assigned to the PCI function which originates this request.
7898 *
7899 * Return codes
7900 * 0 - successful
7901 * -ENOMEM - No available memory
7902 * -EIO - The mailbox failed to complete successfully.
7903 **/
7904 int
lpfc_pci_function_reset(struct lpfc_hba * phba)7905 lpfc_pci_function_reset(struct lpfc_hba *phba)
7906 {
7907 LPFC_MBOXQ_t *mboxq;
7908 uint32_t rc = 0, if_type;
7909 uint32_t shdr_status, shdr_add_status;
7910 uint32_t rdy_chk;
7911 uint32_t port_reset = 0;
7912 union lpfc_sli4_cfg_shdr *shdr;
7913 struct lpfc_register reg_data;
7914 uint16_t devid;
7915
7916 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7917 switch (if_type) {
7918 case LPFC_SLI_INTF_IF_TYPE_0:
7919 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7920 GFP_KERNEL);
7921 if (!mboxq) {
7922 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7923 "0494 Unable to allocate memory for "
7924 "issuing SLI_FUNCTION_RESET mailbox "
7925 "command\n");
7926 return -ENOMEM;
7927 }
7928
7929 /* Setup PCI function reset mailbox-ioctl command */
7930 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7931 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7932 LPFC_SLI4_MBX_EMBED);
7933 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7934 shdr = (union lpfc_sli4_cfg_shdr *)
7935 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7936 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7937 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7938 &shdr->response);
7939 if (rc != MBX_TIMEOUT)
7940 mempool_free(mboxq, phba->mbox_mem_pool);
7941 if (shdr_status || shdr_add_status || rc) {
7942 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7943 "0495 SLI_FUNCTION_RESET mailbox "
7944 "failed with status x%x add_status x%x,"
7945 " mbx status x%x\n",
7946 shdr_status, shdr_add_status, rc);
7947 rc = -ENXIO;
7948 }
7949 break;
7950 case LPFC_SLI_INTF_IF_TYPE_2:
7951 wait:
7952 /*
7953 * Poll the Port Status Register and wait for RDY for
7954 * up to 30 seconds. If the port doesn't respond, treat
7955 * it as an error.
7956 */
7957 for (rdy_chk = 0; rdy_chk < 3000; rdy_chk++) {
7958 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7959 STATUSregaddr, ®_data.word0)) {
7960 rc = -ENODEV;
7961 goto out;
7962 }
7963 if (bf_get(lpfc_sliport_status_rdy, ®_data))
7964 break;
7965 msleep(20);
7966 }
7967
7968 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) {
7969 phba->work_status[0] = readl(
7970 phba->sli4_hba.u.if_type2.ERR1regaddr);
7971 phba->work_status[1] = readl(
7972 phba->sli4_hba.u.if_type2.ERR2regaddr);
7973 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7974 "2890 Port not ready, port status reg "
7975 "0x%x error 1=0x%x, error 2=0x%x\n",
7976 reg_data.word0,
7977 phba->work_status[0],
7978 phba->work_status[1]);
7979 rc = -ENODEV;
7980 goto out;
7981 }
7982
7983 if (!port_reset) {
7984 /*
7985 * Reset the port now
7986 */
7987 reg_data.word0 = 0;
7988 bf_set(lpfc_sliport_ctrl_end, ®_data,
7989 LPFC_SLIPORT_LITTLE_ENDIAN);
7990 bf_set(lpfc_sliport_ctrl_ip, ®_data,
7991 LPFC_SLIPORT_INIT_PORT);
7992 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7993 CTRLregaddr);
7994 /* flush */
7995 pci_read_config_word(phba->pcidev,
7996 PCI_DEVICE_ID, &devid);
7997
7998 port_reset = 1;
7999 msleep(20);
8000 goto wait;
8001 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) {
8002 rc = -ENODEV;
8003 goto out;
8004 }
8005 break;
8006
8007 case LPFC_SLI_INTF_IF_TYPE_1:
8008 default:
8009 break;
8010 }
8011
8012 out:
8013 /* Catch the not-ready port failure after a port reset. */
8014 if (rc) {
8015 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8016 "3317 HBA not functional: IP Reset Failed "
8017 "try: echo fw_reset > board_mode\n");
8018 rc = -ENODEV;
8019 }
8020
8021 return rc;
8022 }
8023
8024 /**
8025 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
8026 * @phba: pointer to lpfc hba data structure.
8027 *
8028 * This routine is invoked to set up the PCI device memory space for device
8029 * with SLI-4 interface spec.
8030 *
8031 * Return codes
8032 * 0 - successful
8033 * other values - error
8034 **/
8035 static int
lpfc_sli4_pci_mem_setup(struct lpfc_hba * phba)8036 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
8037 {
8038 struct pci_dev *pdev;
8039 unsigned long bar0map_len, bar1map_len, bar2map_len;
8040 int error = -ENODEV;
8041 uint32_t if_type;
8042
8043 /* Obtain PCI device reference */
8044 if (!phba->pcidev)
8045 return error;
8046 else
8047 pdev = phba->pcidev;
8048
8049 /* Set the device DMA mask size */
8050 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
8051 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
8052 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
8053 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
8054 return error;
8055 }
8056 }
8057
8058 /*
8059 * The BARs and register set definitions and offset locations are
8060 * dependent on the if_type.
8061 */
8062 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
8063 &phba->sli4_hba.sli_intf.word0)) {
8064 return error;
8065 }
8066
8067 /* There is no SLI3 failback for SLI4 devices. */
8068 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
8069 LPFC_SLI_INTF_VALID) {
8070 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8071 "2894 SLI_INTF reg contents invalid "
8072 "sli_intf reg 0x%x\n",
8073 phba->sli4_hba.sli_intf.word0);
8074 return error;
8075 }
8076
8077 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8078 /*
8079 * Get the bus address of SLI4 device Bar regions and the
8080 * number of bytes required by each mapping. The mapping of the
8081 * particular PCI BARs regions is dependent on the type of
8082 * SLI4 device.
8083 */
8084 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
8085 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
8086 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
8087
8088 /*
8089 * Map SLI4 PCI Config Space Register base to a kernel virtual
8090 * addr
8091 */
8092 phba->sli4_hba.conf_regs_memmap_p =
8093 ioremap(phba->pci_bar0_map, bar0map_len);
8094 if (!phba->sli4_hba.conf_regs_memmap_p) {
8095 dev_printk(KERN_ERR, &pdev->dev,
8096 "ioremap failed for SLI4 PCI config "
8097 "registers.\n");
8098 goto out;
8099 }
8100 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
8101 /* Set up BAR0 PCI config space register memory map */
8102 lpfc_sli4_bar0_register_memmap(phba, if_type);
8103 } else {
8104 phba->pci_bar0_map = pci_resource_start(pdev, 1);
8105 bar0map_len = pci_resource_len(pdev, 1);
8106 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8107 dev_printk(KERN_ERR, &pdev->dev,
8108 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
8109 goto out;
8110 }
8111 phba->sli4_hba.conf_regs_memmap_p =
8112 ioremap(phba->pci_bar0_map, bar0map_len);
8113 if (!phba->sli4_hba.conf_regs_memmap_p) {
8114 dev_printk(KERN_ERR, &pdev->dev,
8115 "ioremap failed for SLI4 PCI config "
8116 "registers.\n");
8117 goto out;
8118 }
8119 lpfc_sli4_bar0_register_memmap(phba, if_type);
8120 }
8121
8122 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8123 (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
8124 /*
8125 * Map SLI4 if type 0 HBA Control Register base to a kernel
8126 * virtual address and setup the registers.
8127 */
8128 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
8129 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
8130 phba->sli4_hba.ctrl_regs_memmap_p =
8131 ioremap(phba->pci_bar1_map, bar1map_len);
8132 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8133 dev_printk(KERN_ERR, &pdev->dev,
8134 "ioremap failed for SLI4 HBA control registers.\n");
8135 goto out_iounmap_conf;
8136 }
8137 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
8138 lpfc_sli4_bar1_register_memmap(phba);
8139 }
8140
8141 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8142 (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
8143 /*
8144 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8145 * virtual address and setup the registers.
8146 */
8147 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
8148 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
8149 phba->sli4_hba.drbl_regs_memmap_p =
8150 ioremap(phba->pci_bar2_map, bar2map_len);
8151 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8152 dev_printk(KERN_ERR, &pdev->dev,
8153 "ioremap failed for SLI4 HBA doorbell registers.\n");
8154 goto out_iounmap_ctrl;
8155 }
8156 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
8157 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8158 if (error)
8159 goto out_iounmap_all;
8160 }
8161
8162 return 0;
8163
8164 out_iounmap_all:
8165 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8166 out_iounmap_ctrl:
8167 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8168 out_iounmap_conf:
8169 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8170 out:
8171 return error;
8172 }
8173
8174 /**
8175 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8176 * @phba: pointer to lpfc hba data structure.
8177 *
8178 * This routine is invoked to unset the PCI device memory space for device
8179 * with SLI-4 interface spec.
8180 **/
8181 static void
lpfc_sli4_pci_mem_unset(struct lpfc_hba * phba)8182 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8183 {
8184 uint32_t if_type;
8185 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8186
8187 switch (if_type) {
8188 case LPFC_SLI_INTF_IF_TYPE_0:
8189 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8190 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8191 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8192 break;
8193 case LPFC_SLI_INTF_IF_TYPE_2:
8194 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8195 break;
8196 case LPFC_SLI_INTF_IF_TYPE_1:
8197 default:
8198 dev_printk(KERN_ERR, &phba->pcidev->dev,
8199 "FATAL - unsupported SLI4 interface type - %d\n",
8200 if_type);
8201 break;
8202 }
8203 }
8204
8205 /**
8206 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8207 * @phba: pointer to lpfc hba data structure.
8208 *
8209 * This routine is invoked to enable the MSI-X interrupt vectors to device
8210 * with SLI-3 interface specs. The kernel function pci_enable_msix_exact()
8211 * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(),
8212 * once invoked, enables either all or nothing, depending on the current
8213 * availability of PCI vector resources. The device driver is responsible
8214 * for calling the individual request_irq() to register each MSI-X vector
8215 * with a interrupt handler, which is done in this function. Note that
8216 * later when device is unloading, the driver should always call free_irq()
8217 * on all MSI-X vectors it has done request_irq() on before calling
8218 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8219 * will be left with MSI-X enabled and leaks its vectors.
8220 *
8221 * Return codes
8222 * 0 - successful
8223 * other values - error
8224 **/
8225 static int
lpfc_sli_enable_msix(struct lpfc_hba * phba)8226 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8227 {
8228 int rc, i;
8229 LPFC_MBOXQ_t *pmb;
8230
8231 /* Set up MSI-X multi-message vectors */
8232 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8233 phba->msix_entries[i].entry = i;
8234
8235 /* Configure MSI-X capability structure */
8236 rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
8237 LPFC_MSIX_VECTORS);
8238 if (rc) {
8239 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8240 "0420 PCI enable MSI-X failed (%d)\n", rc);
8241 goto vec_fail_out;
8242 }
8243 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8244 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8245 "0477 MSI-X entry[%d]: vector=x%x "
8246 "message=%d\n", i,
8247 phba->msix_entries[i].vector,
8248 phba->msix_entries[i].entry);
8249 /*
8250 * Assign MSI-X vectors to interrupt handlers
8251 */
8252
8253 /* vector-0 is associated to slow-path handler */
8254 rc = request_irq(phba->msix_entries[0].vector,
8255 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
8256 LPFC_SP_DRIVER_HANDLER_NAME, phba);
8257 if (rc) {
8258 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8259 "0421 MSI-X slow-path request_irq failed "
8260 "(%d)\n", rc);
8261 goto msi_fail_out;
8262 }
8263
8264 /* vector-1 is associated to fast-path handler */
8265 rc = request_irq(phba->msix_entries[1].vector,
8266 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
8267 LPFC_FP_DRIVER_HANDLER_NAME, phba);
8268
8269 if (rc) {
8270 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8271 "0429 MSI-X fast-path request_irq failed "
8272 "(%d)\n", rc);
8273 goto irq_fail_out;
8274 }
8275
8276 /*
8277 * Configure HBA MSI-X attention conditions to messages
8278 */
8279 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8280
8281 if (!pmb) {
8282 rc = -ENOMEM;
8283 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8284 "0474 Unable to allocate memory for issuing "
8285 "MBOX_CONFIG_MSI command\n");
8286 goto mem_fail_out;
8287 }
8288 rc = lpfc_config_msi(phba, pmb);
8289 if (rc)
8290 goto mbx_fail_out;
8291 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8292 if (rc != MBX_SUCCESS) {
8293 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8294 "0351 Config MSI mailbox command failed, "
8295 "mbxCmd x%x, mbxStatus x%x\n",
8296 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8297 goto mbx_fail_out;
8298 }
8299
8300 /* Free memory allocated for mailbox command */
8301 mempool_free(pmb, phba->mbox_mem_pool);
8302 return rc;
8303
8304 mbx_fail_out:
8305 /* Free memory allocated for mailbox command */
8306 mempool_free(pmb, phba->mbox_mem_pool);
8307
8308 mem_fail_out:
8309 /* free the irq already requested */
8310 free_irq(phba->msix_entries[1].vector, phba);
8311
8312 irq_fail_out:
8313 /* free the irq already requested */
8314 free_irq(phba->msix_entries[0].vector, phba);
8315
8316 msi_fail_out:
8317 /* Unconfigure MSI-X capability structure */
8318 pci_disable_msix(phba->pcidev);
8319
8320 vec_fail_out:
8321 return rc;
8322 }
8323
8324 /**
8325 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8326 * @phba: pointer to lpfc hba data structure.
8327 *
8328 * This routine is invoked to release the MSI-X vectors and then disable the
8329 * MSI-X interrupt mode to device with SLI-3 interface spec.
8330 **/
8331 static void
lpfc_sli_disable_msix(struct lpfc_hba * phba)8332 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8333 {
8334 int i;
8335
8336 /* Free up MSI-X multi-message vectors */
8337 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8338 free_irq(phba->msix_entries[i].vector, phba);
8339 /* Disable MSI-X */
8340 pci_disable_msix(phba->pcidev);
8341
8342 return;
8343 }
8344
8345 /**
8346 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8347 * @phba: pointer to lpfc hba data structure.
8348 *
8349 * This routine is invoked to enable the MSI interrupt mode to device with
8350 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8351 * enable the MSI vector. The device driver is responsible for calling the
8352 * request_irq() to register MSI vector with a interrupt the handler, which
8353 * is done in this function.
8354 *
8355 * Return codes
8356 * 0 - successful
8357 * other values - error
8358 */
8359 static int
lpfc_sli_enable_msi(struct lpfc_hba * phba)8360 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8361 {
8362 int rc;
8363
8364 rc = pci_enable_msi(phba->pcidev);
8365 if (!rc)
8366 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8367 "0462 PCI enable MSI mode success.\n");
8368 else {
8369 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8370 "0471 PCI enable MSI mode failed (%d)\n", rc);
8371 return rc;
8372 }
8373
8374 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8375 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8376 if (rc) {
8377 pci_disable_msi(phba->pcidev);
8378 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8379 "0478 MSI request_irq failed (%d)\n", rc);
8380 }
8381 return rc;
8382 }
8383
8384 /**
8385 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8386 * @phba: pointer to lpfc hba data structure.
8387 *
8388 * This routine is invoked to disable the MSI interrupt mode to device with
8389 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8390 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8391 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8392 * its vector.
8393 */
8394 static void
lpfc_sli_disable_msi(struct lpfc_hba * phba)8395 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8396 {
8397 free_irq(phba->pcidev->irq, phba);
8398 pci_disable_msi(phba->pcidev);
8399 return;
8400 }
8401
8402 /**
8403 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8404 * @phba: pointer to lpfc hba data structure.
8405 *
8406 * This routine is invoked to enable device interrupt and associate driver's
8407 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8408 * spec. Depends on the interrupt mode configured to the driver, the driver
8409 * will try to fallback from the configured interrupt mode to an interrupt
8410 * mode which is supported by the platform, kernel, and device in the order
8411 * of:
8412 * MSI-X -> MSI -> IRQ.
8413 *
8414 * Return codes
8415 * 0 - successful
8416 * other values - error
8417 **/
8418 static uint32_t
lpfc_sli_enable_intr(struct lpfc_hba * phba,uint32_t cfg_mode)8419 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8420 {
8421 uint32_t intr_mode = LPFC_INTR_ERROR;
8422 int retval;
8423
8424 if (cfg_mode == 2) {
8425 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8426 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8427 if (!retval) {
8428 /* Now, try to enable MSI-X interrupt mode */
8429 retval = lpfc_sli_enable_msix(phba);
8430 if (!retval) {
8431 /* Indicate initialization to MSI-X mode */
8432 phba->intr_type = MSIX;
8433 intr_mode = 2;
8434 }
8435 }
8436 }
8437
8438 /* Fallback to MSI if MSI-X initialization failed */
8439 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8440 retval = lpfc_sli_enable_msi(phba);
8441 if (!retval) {
8442 /* Indicate initialization to MSI mode */
8443 phba->intr_type = MSI;
8444 intr_mode = 1;
8445 }
8446 }
8447
8448 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8449 if (phba->intr_type == NONE) {
8450 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8451 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8452 if (!retval) {
8453 /* Indicate initialization to INTx mode */
8454 phba->intr_type = INTx;
8455 intr_mode = 0;
8456 }
8457 }
8458 return intr_mode;
8459 }
8460
8461 /**
8462 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8463 * @phba: pointer to lpfc hba data structure.
8464 *
8465 * This routine is invoked to disable device interrupt and disassociate the
8466 * driver's interrupt handler(s) from interrupt vector(s) to device with
8467 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8468 * release the interrupt vector(s) for the message signaled interrupt.
8469 **/
8470 static void
lpfc_sli_disable_intr(struct lpfc_hba * phba)8471 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8472 {
8473 /* Disable the currently initialized interrupt mode */
8474 if (phba->intr_type == MSIX)
8475 lpfc_sli_disable_msix(phba);
8476 else if (phba->intr_type == MSI)
8477 lpfc_sli_disable_msi(phba);
8478 else if (phba->intr_type == INTx)
8479 free_irq(phba->pcidev->irq, phba);
8480
8481 /* Reset interrupt management states */
8482 phba->intr_type = NONE;
8483 phba->sli.slistat.sli_intr = 0;
8484
8485 return;
8486 }
8487
8488 /**
8489 * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8490 * @phba: pointer to lpfc hba data structure.
8491 *
8492 * Find next available CPU to use for IRQ to CPU affinity.
8493 */
8494 static int
lpfc_find_next_cpu(struct lpfc_hba * phba,uint32_t phys_id)8495 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8496 {
8497 struct lpfc_vector_map_info *cpup;
8498 int cpu;
8499
8500 cpup = phba->sli4_hba.cpu_map;
8501 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8502 /* CPU must be online */
8503 if (cpu_online(cpu)) {
8504 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8505 (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8506 (cpup->phys_id == phys_id)) {
8507 return cpu;
8508 }
8509 }
8510 cpup++;
8511 }
8512
8513 /*
8514 * If we get here, we have used ALL CPUs for the specific
8515 * phys_id. Now we need to clear out lpfc_used_cpu and start
8516 * reusing CPUs.
8517 */
8518
8519 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8520 if (lpfc_used_cpu[cpu] == phys_id)
8521 lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8522 }
8523
8524 cpup = phba->sli4_hba.cpu_map;
8525 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8526 /* CPU must be online */
8527 if (cpu_online(cpu)) {
8528 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8529 (cpup->phys_id == phys_id)) {
8530 return cpu;
8531 }
8532 }
8533 cpup++;
8534 }
8535 return LPFC_VECTOR_MAP_EMPTY;
8536 }
8537
8538 /**
8539 * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8540 * @phba: pointer to lpfc hba data structure.
8541 * @vectors: number of HBA vectors
8542 *
8543 * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8544 * affinization across multple physical CPUs (numa nodes).
8545 * In addition, this routine will assign an IO channel for each CPU
8546 * to use when issuing I/Os.
8547 */
8548 static int
lpfc_sli4_set_affinity(struct lpfc_hba * phba,int vectors)8549 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8550 {
8551 int i, idx, saved_chann, used_chann, cpu, phys_id;
8552 int max_phys_id, min_phys_id;
8553 int num_io_channel, first_cpu, chan;
8554 struct lpfc_vector_map_info *cpup;
8555 #ifdef CONFIG_X86
8556 struct cpuinfo_x86 *cpuinfo;
8557 #endif
8558 struct cpumask *mask;
8559 uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8560
8561 /* If there is no mapping, just return */
8562 if (!phba->cfg_fcp_cpu_map)
8563 return 1;
8564
8565 /* Init cpu_map array */
8566 memset(phba->sli4_hba.cpu_map, 0xff,
8567 (sizeof(struct lpfc_vector_map_info) *
8568 phba->sli4_hba.num_present_cpu));
8569
8570 max_phys_id = 0;
8571 min_phys_id = 0xff;
8572 phys_id = 0;
8573 num_io_channel = 0;
8574 first_cpu = LPFC_VECTOR_MAP_EMPTY;
8575
8576 /* Update CPU map with physical id and core id of each CPU */
8577 cpup = phba->sli4_hba.cpu_map;
8578 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8579 #ifdef CONFIG_X86
8580 cpuinfo = &cpu_data(cpu);
8581 cpup->phys_id = cpuinfo->phys_proc_id;
8582 cpup->core_id = cpuinfo->cpu_core_id;
8583 #else
8584 /* No distinction between CPUs for other platforms */
8585 cpup->phys_id = 0;
8586 cpup->core_id = 0;
8587 #endif
8588
8589 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8590 "3328 CPU physid %d coreid %d\n",
8591 cpup->phys_id, cpup->core_id);
8592
8593 if (cpup->phys_id > max_phys_id)
8594 max_phys_id = cpup->phys_id;
8595 if (cpup->phys_id < min_phys_id)
8596 min_phys_id = cpup->phys_id;
8597 cpup++;
8598 }
8599
8600 phys_id = min_phys_id;
8601 /* Now associate the HBA vectors with specific CPUs */
8602 for (idx = 0; idx < vectors; idx++) {
8603 cpup = phba->sli4_hba.cpu_map;
8604 cpu = lpfc_find_next_cpu(phba, phys_id);
8605 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8606
8607 /* Try for all phys_id's */
8608 for (i = 1; i < max_phys_id; i++) {
8609 phys_id++;
8610 if (phys_id > max_phys_id)
8611 phys_id = min_phys_id;
8612 cpu = lpfc_find_next_cpu(phba, phys_id);
8613 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8614 continue;
8615 goto found;
8616 }
8617
8618 /* Use round robin for scheduling */
8619 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8620 chan = 0;
8621 cpup = phba->sli4_hba.cpu_map;
8622 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8623 cpup->channel_id = chan;
8624 cpup++;
8625 chan++;
8626 if (chan >= phba->cfg_fcp_io_channel)
8627 chan = 0;
8628 }
8629
8630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8631 "3329 Cannot set affinity:"
8632 "Error mapping vector %d (%d)\n",
8633 idx, vectors);
8634 return 0;
8635 }
8636 found:
8637 cpup += cpu;
8638 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8639 lpfc_used_cpu[cpu] = phys_id;
8640
8641 /* Associate vector with selected CPU */
8642 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8643
8644 /* Associate IO channel with selected CPU */
8645 cpup->channel_id = idx;
8646 num_io_channel++;
8647
8648 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8649 first_cpu = cpu;
8650
8651 /* Now affinitize to the selected CPU */
8652 mask = &cpup->maskbits;
8653 cpumask_clear(mask);
8654 cpumask_set_cpu(cpu, mask);
8655 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8656 vector, mask);
8657
8658 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8659 "3330 Set Affinity: CPU %d channel %d "
8660 "irq %d (%x)\n",
8661 cpu, cpup->channel_id,
8662 phba->sli4_hba.msix_entries[idx].vector, i);
8663
8664 /* Spread vector mapping across multple physical CPU nodes */
8665 phys_id++;
8666 if (phys_id > max_phys_id)
8667 phys_id = min_phys_id;
8668 }
8669
8670 /*
8671 * Finally fill in the IO channel for any remaining CPUs.
8672 * At this point, all IO channels have been assigned to a specific
8673 * MSIx vector, mapped to a specific CPU.
8674 * Base the remaining IO channel assigned, to IO channels already
8675 * assigned to other CPUs on the same phys_id.
8676 */
8677 for (i = min_phys_id; i <= max_phys_id; i++) {
8678 /*
8679 * If there are no io channels already mapped to
8680 * this phys_id, just round robin thru the io_channels.
8681 * Setup chann[] for round robin.
8682 */
8683 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8684 chann[idx] = idx;
8685
8686 saved_chann = 0;
8687 used_chann = 0;
8688
8689 /*
8690 * First build a list of IO channels already assigned
8691 * to this phys_id before reassigning the same IO
8692 * channels to the remaining CPUs.
8693 */
8694 cpup = phba->sli4_hba.cpu_map;
8695 cpu = first_cpu;
8696 cpup += cpu;
8697 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8698 idx++) {
8699 if (cpup->phys_id == i) {
8700 /*
8701 * Save any IO channels that are
8702 * already mapped to this phys_id.
8703 */
8704 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8705 chann[saved_chann] =
8706 cpup->channel_id;
8707 saved_chann++;
8708 goto out;
8709 }
8710
8711 /* See if we are using round-robin */
8712 if (saved_chann == 0)
8713 saved_chann =
8714 phba->cfg_fcp_io_channel;
8715
8716 /* Associate next IO channel with CPU */
8717 cpup->channel_id = chann[used_chann];
8718 num_io_channel++;
8719 used_chann++;
8720 if (used_chann == saved_chann)
8721 used_chann = 0;
8722
8723 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8724 "3331 Set IO_CHANN "
8725 "CPU %d channel %d\n",
8726 idx, cpup->channel_id);
8727 }
8728 out:
8729 cpu++;
8730 if (cpu >= phba->sli4_hba.num_present_cpu) {
8731 cpup = phba->sli4_hba.cpu_map;
8732 cpu = 0;
8733 } else {
8734 cpup++;
8735 }
8736 }
8737 }
8738
8739 if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8740 cpup = phba->sli4_hba.cpu_map;
8741 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8742 if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8743 cpup->channel_id = 0;
8744 num_io_channel++;
8745
8746 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8747 "3332 Assign IO_CHANN "
8748 "CPU %d channel %d\n",
8749 idx, cpup->channel_id);
8750 }
8751 cpup++;
8752 }
8753 }
8754
8755 /* Sanity check */
8756 if (num_io_channel != phba->sli4_hba.num_present_cpu)
8757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8758 "3333 Set affinity mismatch:"
8759 "%d chann != %d cpus: %d vectors\n",
8760 num_io_channel, phba->sli4_hba.num_present_cpu,
8761 vectors);
8762
8763 /* Enable using cpu affinity for scheduling */
8764 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8765 return 1;
8766 }
8767
8768
8769 /**
8770 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8771 * @phba: pointer to lpfc hba data structure.
8772 *
8773 * This routine is invoked to enable the MSI-X interrupt vectors to device
8774 * with SLI-4 interface spec. The kernel function pci_enable_msix_range()
8775 * is called to enable the MSI-X vectors. The device driver is responsible
8776 * for calling the individual request_irq() to register each MSI-X vector
8777 * with a interrupt handler, which is done in this function. Note that
8778 * later when device is unloading, the driver should always call free_irq()
8779 * on all MSI-X vectors it has done request_irq() on before calling
8780 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8781 * will be left with MSI-X enabled and leaks its vectors.
8782 *
8783 * Return codes
8784 * 0 - successful
8785 * other values - error
8786 **/
8787 static int
lpfc_sli4_enable_msix(struct lpfc_hba * phba)8788 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8789 {
8790 int vectors, rc, index;
8791
8792 /* Set up MSI-X multi-message vectors */
8793 for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8794 phba->sli4_hba.msix_entries[index].entry = index;
8795
8796 /* Configure MSI-X capability structure */
8797 vectors = phba->cfg_fcp_io_channel;
8798 if (phba->cfg_fof) {
8799 phba->sli4_hba.msix_entries[index].entry = index;
8800 vectors++;
8801 }
8802 rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries,
8803 2, vectors);
8804 if (rc < 0) {
8805 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8806 "0484 PCI enable MSI-X failed (%d)\n", rc);
8807 goto vec_fail_out;
8808 }
8809 vectors = rc;
8810
8811 /* Log MSI-X vector assignment */
8812 for (index = 0; index < vectors; index++)
8813 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8814 "0489 MSI-X entry[%d]: vector=x%x "
8815 "message=%d\n", index,
8816 phba->sli4_hba.msix_entries[index].vector,
8817 phba->sli4_hba.msix_entries[index].entry);
8818
8819 /* Assign MSI-X vectors to interrupt handlers */
8820 for (index = 0; index < vectors; index++) {
8821 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8822 snprintf((char *)&phba->sli4_hba.handler_name[index],
8823 LPFC_SLI4_HANDLER_NAME_SZ,
8824 LPFC_DRIVER_HANDLER_NAME"%d", index);
8825
8826 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8827 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8828 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8829 if (phba->cfg_fof && (index == (vectors - 1)))
8830 rc = request_irq(
8831 phba->sli4_hba.msix_entries[index].vector,
8832 &lpfc_sli4_fof_intr_handler, IRQF_SHARED,
8833 (char *)&phba->sli4_hba.handler_name[index],
8834 &phba->sli4_hba.fcp_eq_hdl[index]);
8835 else
8836 rc = request_irq(
8837 phba->sli4_hba.msix_entries[index].vector,
8838 &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
8839 (char *)&phba->sli4_hba.handler_name[index],
8840 &phba->sli4_hba.fcp_eq_hdl[index]);
8841 if (rc) {
8842 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8843 "0486 MSI-X fast-path (%d) "
8844 "request_irq failed (%d)\n", index, rc);
8845 goto cfg_fail_out;
8846 }
8847 }
8848
8849 if (phba->cfg_fof)
8850 vectors--;
8851
8852 if (vectors != phba->cfg_fcp_io_channel) {
8853 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8854 "3238 Reducing IO channels to match number of "
8855 "MSI-X vectors, requested %d got %d\n",
8856 phba->cfg_fcp_io_channel, vectors);
8857 phba->cfg_fcp_io_channel = vectors;
8858 }
8859
8860 lpfc_sli4_set_affinity(phba, vectors);
8861 return rc;
8862
8863 cfg_fail_out:
8864 /* free the irq already requested */
8865 for (--index; index >= 0; index--) {
8866 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8867 vector, NULL);
8868 free_irq(phba->sli4_hba.msix_entries[index].vector,
8869 &phba->sli4_hba.fcp_eq_hdl[index]);
8870 }
8871
8872 /* Unconfigure MSI-X capability structure */
8873 pci_disable_msix(phba->pcidev);
8874
8875 vec_fail_out:
8876 return rc;
8877 }
8878
8879 /**
8880 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8881 * @phba: pointer to lpfc hba data structure.
8882 *
8883 * This routine is invoked to release the MSI-X vectors and then disable the
8884 * MSI-X interrupt mode to device with SLI-4 interface spec.
8885 **/
8886 static void
lpfc_sli4_disable_msix(struct lpfc_hba * phba)8887 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
8888 {
8889 int index;
8890
8891 /* Free up MSI-X multi-message vectors */
8892 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8893 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8894 vector, NULL);
8895 free_irq(phba->sli4_hba.msix_entries[index].vector,
8896 &phba->sli4_hba.fcp_eq_hdl[index]);
8897 }
8898 if (phba->cfg_fof) {
8899 free_irq(phba->sli4_hba.msix_entries[index].vector,
8900 &phba->sli4_hba.fcp_eq_hdl[index]);
8901 }
8902 /* Disable MSI-X */
8903 pci_disable_msix(phba->pcidev);
8904
8905 return;
8906 }
8907
8908 /**
8909 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8910 * @phba: pointer to lpfc hba data structure.
8911 *
8912 * This routine is invoked to enable the MSI interrupt mode to device with
8913 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8914 * to enable the MSI vector. The device driver is responsible for calling
8915 * the request_irq() to register MSI vector with a interrupt the handler,
8916 * which is done in this function.
8917 *
8918 * Return codes
8919 * 0 - successful
8920 * other values - error
8921 **/
8922 static int
lpfc_sli4_enable_msi(struct lpfc_hba * phba)8923 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
8924 {
8925 int rc, index;
8926
8927 rc = pci_enable_msi(phba->pcidev);
8928 if (!rc)
8929 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8930 "0487 PCI enable MSI mode success.\n");
8931 else {
8932 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8933 "0488 PCI enable MSI mode failed (%d)\n", rc);
8934 return rc;
8935 }
8936
8937 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8938 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8939 if (rc) {
8940 pci_disable_msi(phba->pcidev);
8941 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8942 "0490 MSI request_irq failed (%d)\n", rc);
8943 return rc;
8944 }
8945
8946 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8947 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8948 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8949 }
8950
8951 if (phba->cfg_fof) {
8952 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8953 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8954 }
8955 return 0;
8956 }
8957
8958 /**
8959 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8960 * @phba: pointer to lpfc hba data structure.
8961 *
8962 * This routine is invoked to disable the MSI interrupt mode to device with
8963 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8964 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8965 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8966 * its vector.
8967 **/
8968 static void
lpfc_sli4_disable_msi(struct lpfc_hba * phba)8969 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
8970 {
8971 free_irq(phba->pcidev->irq, phba);
8972 pci_disable_msi(phba->pcidev);
8973 return;
8974 }
8975
8976 /**
8977 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8978 * @phba: pointer to lpfc hba data structure.
8979 *
8980 * This routine is invoked to enable device interrupt and associate driver's
8981 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8982 * interface spec. Depends on the interrupt mode configured to the driver,
8983 * the driver will try to fallback from the configured interrupt mode to an
8984 * interrupt mode which is supported by the platform, kernel, and device in
8985 * the order of:
8986 * MSI-X -> MSI -> IRQ.
8987 *
8988 * Return codes
8989 * 0 - successful
8990 * other values - error
8991 **/
8992 static uint32_t
lpfc_sli4_enable_intr(struct lpfc_hba * phba,uint32_t cfg_mode)8993 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8994 {
8995 uint32_t intr_mode = LPFC_INTR_ERROR;
8996 int retval, index;
8997
8998 if (cfg_mode == 2) {
8999 /* Preparation before conf_msi mbox cmd */
9000 retval = 0;
9001 if (!retval) {
9002 /* Now, try to enable MSI-X interrupt mode */
9003 retval = lpfc_sli4_enable_msix(phba);
9004 if (!retval) {
9005 /* Indicate initialization to MSI-X mode */
9006 phba->intr_type = MSIX;
9007 intr_mode = 2;
9008 }
9009 }
9010 }
9011
9012 /* Fallback to MSI if MSI-X initialization failed */
9013 if (cfg_mode >= 1 && phba->intr_type == NONE) {
9014 retval = lpfc_sli4_enable_msi(phba);
9015 if (!retval) {
9016 /* Indicate initialization to MSI mode */
9017 phba->intr_type = MSI;
9018 intr_mode = 1;
9019 }
9020 }
9021
9022 /* Fallback to INTx if both MSI-X/MSI initalization failed */
9023 if (phba->intr_type == NONE) {
9024 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9025 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9026 if (!retval) {
9027 /* Indicate initialization to INTx mode */
9028 phba->intr_type = INTx;
9029 intr_mode = 0;
9030 for (index = 0; index < phba->cfg_fcp_io_channel;
9031 index++) {
9032 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9033 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9034 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9035 fcp_eq_in_use, 1);
9036 }
9037 if (phba->cfg_fof) {
9038 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9039 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9040 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9041 fcp_eq_in_use, 1);
9042 }
9043 }
9044 }
9045 return intr_mode;
9046 }
9047
9048 /**
9049 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9050 * @phba: pointer to lpfc hba data structure.
9051 *
9052 * This routine is invoked to disable device interrupt and disassociate
9053 * the driver's interrupt handler(s) from interrupt vector(s) to device
9054 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9055 * will release the interrupt vector(s) for the message signaled interrupt.
9056 **/
9057 static void
lpfc_sli4_disable_intr(struct lpfc_hba * phba)9058 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9059 {
9060 /* Disable the currently initialized interrupt mode */
9061 if (phba->intr_type == MSIX)
9062 lpfc_sli4_disable_msix(phba);
9063 else if (phba->intr_type == MSI)
9064 lpfc_sli4_disable_msi(phba);
9065 else if (phba->intr_type == INTx)
9066 free_irq(phba->pcidev->irq, phba);
9067
9068 /* Reset interrupt management states */
9069 phba->intr_type = NONE;
9070 phba->sli.slistat.sli_intr = 0;
9071
9072 return;
9073 }
9074
9075 /**
9076 * lpfc_unset_hba - Unset SLI3 hba device initialization
9077 * @phba: pointer to lpfc hba data structure.
9078 *
9079 * This routine is invoked to unset the HBA device initialization steps to
9080 * a device with SLI-3 interface spec.
9081 **/
9082 static void
lpfc_unset_hba(struct lpfc_hba * phba)9083 lpfc_unset_hba(struct lpfc_hba *phba)
9084 {
9085 struct lpfc_vport *vport = phba->pport;
9086 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9087
9088 spin_lock_irq(shost->host_lock);
9089 vport->load_flag |= FC_UNLOADING;
9090 spin_unlock_irq(shost->host_lock);
9091
9092 kfree(phba->vpi_bmask);
9093 kfree(phba->vpi_ids);
9094
9095 lpfc_stop_hba_timers(phba);
9096
9097 phba->pport->work_port_events = 0;
9098
9099 lpfc_sli_hba_down(phba);
9100
9101 lpfc_sli_brdrestart(phba);
9102
9103 lpfc_sli_disable_intr(phba);
9104
9105 return;
9106 }
9107
9108 /**
9109 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9110 * @phba: Pointer to HBA context object.
9111 *
9112 * This function is called in the SLI4 code path to wait for completion
9113 * of device's XRIs exchange busy. It will check the XRI exchange busy
9114 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9115 * that, it will check the XRI exchange busy on outstanding FCP and ELS
9116 * I/Os every 30 seconds, log error message, and wait forever. Only when
9117 * all XRI exchange busy complete, the driver unload shall proceed with
9118 * invoking the function reset ioctl mailbox command to the CNA and the
9119 * the rest of the driver unload resource release.
9120 **/
9121 static void
lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba * phba)9122 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9123 {
9124 int wait_time = 0;
9125 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9126 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9127
9128 while (!fcp_xri_cmpl || !els_xri_cmpl) {
9129 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9130 if (!fcp_xri_cmpl)
9131 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9132 "2877 FCP XRI exchange busy "
9133 "wait time: %d seconds.\n",
9134 wait_time/1000);
9135 if (!els_xri_cmpl)
9136 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9137 "2878 ELS XRI exchange busy "
9138 "wait time: %d seconds.\n",
9139 wait_time/1000);
9140 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
9141 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
9142 } else {
9143 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
9144 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
9145 }
9146 fcp_xri_cmpl =
9147 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9148 els_xri_cmpl =
9149 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9150 }
9151 }
9152
9153 /**
9154 * lpfc_sli4_hba_unset - Unset the fcoe hba
9155 * @phba: Pointer to HBA context object.
9156 *
9157 * This function is called in the SLI4 code path to reset the HBA's FCoE
9158 * function. The caller is not required to hold any lock. This routine
9159 * issues PCI function reset mailbox command to reset the FCoE function.
9160 * At the end of the function, it calls lpfc_hba_down_post function to
9161 * free any pending commands.
9162 **/
9163 static void
lpfc_sli4_hba_unset(struct lpfc_hba * phba)9164 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
9165 {
9166 int wait_cnt = 0;
9167 LPFC_MBOXQ_t *mboxq;
9168 struct pci_dev *pdev = phba->pcidev;
9169
9170 lpfc_stop_hba_timers(phba);
9171 phba->sli4_hba.intr_enable = 0;
9172
9173 /*
9174 * Gracefully wait out the potential current outstanding asynchronous
9175 * mailbox command.
9176 */
9177
9178 /* First, block any pending async mailbox command from posted */
9179 spin_lock_irq(&phba->hbalock);
9180 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9181 spin_unlock_irq(&phba->hbalock);
9182 /* Now, trying to wait it out if we can */
9183 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9184 msleep(10);
9185 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9186 break;
9187 }
9188 /* Forcefully release the outstanding mailbox command if timed out */
9189 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9190 spin_lock_irq(&phba->hbalock);
9191 mboxq = phba->sli.mbox_active;
9192 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9193 __lpfc_mbox_cmpl_put(phba, mboxq);
9194 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9195 phba->sli.mbox_active = NULL;
9196 spin_unlock_irq(&phba->hbalock);
9197 }
9198
9199 /* Abort all iocbs associated with the hba */
9200 lpfc_sli_hba_iocb_abort(phba);
9201
9202 /* Wait for completion of device XRI exchange busy */
9203 lpfc_sli4_xri_exchange_busy_wait(phba);
9204
9205 /* Disable PCI subsystem interrupt */
9206 lpfc_sli4_disable_intr(phba);
9207
9208 /* Disable SR-IOV if enabled */
9209 if (phba->cfg_sriov_nr_virtfn)
9210 pci_disable_sriov(pdev);
9211
9212 /* Stop kthread signal shall trigger work_done one more time */
9213 kthread_stop(phba->worker_thread);
9214
9215 /* Reset SLI4 HBA FCoE function */
9216 lpfc_pci_function_reset(phba);
9217 lpfc_sli4_queue_destroy(phba);
9218
9219 /* Stop the SLI4 device port */
9220 phba->pport->work_port_events = 0;
9221 }
9222
9223 /**
9224 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9225 * @phba: Pointer to HBA context object.
9226 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9227 *
9228 * This function is called in the SLI4 code path to read the port's
9229 * sli4 capabilities.
9230 *
9231 * This function may be be called from any context that can block-wait
9232 * for the completion. The expectation is that this routine is called
9233 * typically from probe_one or from the online routine.
9234 **/
9235 int
lpfc_pc_sli4_params_get(struct lpfc_hba * phba,LPFC_MBOXQ_t * mboxq)9236 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9237 {
9238 int rc;
9239 struct lpfc_mqe *mqe;
9240 struct lpfc_pc_sli4_params *sli4_params;
9241 uint32_t mbox_tmo;
9242
9243 rc = 0;
9244 mqe = &mboxq->u.mqe;
9245
9246 /* Read the port's SLI4 Parameters port capabilities */
9247 lpfc_pc_sli4_params(mboxq);
9248 if (!phba->sli4_hba.intr_enable)
9249 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9250 else {
9251 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9252 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9253 }
9254
9255 if (unlikely(rc))
9256 return 1;
9257
9258 sli4_params = &phba->sli4_hba.pc_sli4_params;
9259 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9260 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9261 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9262 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9263 &mqe->un.sli4_params);
9264 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9265 &mqe->un.sli4_params);
9266 sli4_params->proto_types = mqe->un.sli4_params.word3;
9267 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9268 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9269 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9270 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9271 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9272 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9273 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9274 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9275 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9276 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9277 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9278 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9279 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9280 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9281 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9282 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9283 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9284 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9285 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9286 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9287
9288 /* Make sure that sge_supp_len can be handled by the driver */
9289 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9290 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9291
9292 return rc;
9293 }
9294
9295 /**
9296 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9297 * @phba: Pointer to HBA context object.
9298 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9299 *
9300 * This function is called in the SLI4 code path to read the port's
9301 * sli4 capabilities.
9302 *
9303 * This function may be be called from any context that can block-wait
9304 * for the completion. The expectation is that this routine is called
9305 * typically from probe_one or from the online routine.
9306 **/
9307 int
lpfc_get_sli4_parameters(struct lpfc_hba * phba,LPFC_MBOXQ_t * mboxq)9308 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9309 {
9310 int rc;
9311 struct lpfc_mqe *mqe = &mboxq->u.mqe;
9312 struct lpfc_pc_sli4_params *sli4_params;
9313 uint32_t mbox_tmo;
9314 int length;
9315 struct lpfc_sli4_parameters *mbx_sli4_parameters;
9316
9317 /*
9318 * By default, the driver assumes the SLI4 port requires RPI
9319 * header postings. The SLI4_PARAM response will correct this
9320 * assumption.
9321 */
9322 phba->sli4_hba.rpi_hdrs_in_use = 1;
9323
9324 /* Read the port's SLI4 Config Parameters */
9325 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9326 sizeof(struct lpfc_sli4_cfg_mhdr));
9327 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9328 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9329 length, LPFC_SLI4_MBX_EMBED);
9330 if (!phba->sli4_hba.intr_enable)
9331 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9332 else {
9333 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9334 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9335 }
9336 if (unlikely(rc))
9337 return rc;
9338 sli4_params = &phba->sli4_hba.pc_sli4_params;
9339 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9340 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9341 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9342 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9343 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9344 mbx_sli4_parameters);
9345 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9346 mbx_sli4_parameters);
9347 if (bf_get(cfg_phwq, mbx_sli4_parameters))
9348 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9349 else
9350 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9351 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9352 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9353 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
9354 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9355 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9356 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9357 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9358 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
9359 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9360 mbx_sli4_parameters);
9361 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9362 mbx_sli4_parameters);
9363 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9364 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9365
9366 /* Make sure that sge_supp_len can be handled by the driver */
9367 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9368 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9369
9370 return 0;
9371 }
9372
9373 /**
9374 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9375 * @pdev: pointer to PCI device
9376 * @pid: pointer to PCI device identifier
9377 *
9378 * This routine is to be called to attach a device with SLI-3 interface spec
9379 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9380 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9381 * information of the device and driver to see if the driver state that it can
9382 * support this kind of device. If the match is successful, the driver core
9383 * invokes this routine. If this routine determines it can claim the HBA, it
9384 * does all the initialization that it needs to do to handle the HBA properly.
9385 *
9386 * Return code
9387 * 0 - driver can claim the device
9388 * negative value - driver can not claim the device
9389 **/
9390 static int
lpfc_pci_probe_one_s3(struct pci_dev * pdev,const struct pci_device_id * pid)9391 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9392 {
9393 struct lpfc_hba *phba;
9394 struct lpfc_vport *vport = NULL;
9395 struct Scsi_Host *shost = NULL;
9396 int error;
9397 uint32_t cfg_mode, intr_mode;
9398
9399 /* Allocate memory for HBA structure */
9400 phba = lpfc_hba_alloc(pdev);
9401 if (!phba)
9402 return -ENOMEM;
9403
9404 /* Perform generic PCI device enabling operation */
9405 error = lpfc_enable_pci_dev(phba);
9406 if (error)
9407 goto out_free_phba;
9408
9409 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9410 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9411 if (error)
9412 goto out_disable_pci_dev;
9413
9414 /* Set up SLI-3 specific device PCI memory space */
9415 error = lpfc_sli_pci_mem_setup(phba);
9416 if (error) {
9417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9418 "1402 Failed to set up pci memory space.\n");
9419 goto out_disable_pci_dev;
9420 }
9421
9422 /* Set up phase-1 common device driver resources */
9423 error = lpfc_setup_driver_resource_phase1(phba);
9424 if (error) {
9425 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9426 "1403 Failed to set up driver resource.\n");
9427 goto out_unset_pci_mem_s3;
9428 }
9429
9430 /* Set up SLI-3 specific device driver resources */
9431 error = lpfc_sli_driver_resource_setup(phba);
9432 if (error) {
9433 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9434 "1404 Failed to set up driver resource.\n");
9435 goto out_unset_pci_mem_s3;
9436 }
9437
9438 /* Initialize and populate the iocb list per host */
9439 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9440 if (error) {
9441 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9442 "1405 Failed to initialize iocb list.\n");
9443 goto out_unset_driver_resource_s3;
9444 }
9445
9446 /* Set up common device driver resources */
9447 error = lpfc_setup_driver_resource_phase2(phba);
9448 if (error) {
9449 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9450 "1406 Failed to set up driver resource.\n");
9451 goto out_free_iocb_list;
9452 }
9453
9454 /* Get the default values for Model Name and Description */
9455 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9456
9457 /* Create SCSI host to the physical port */
9458 error = lpfc_create_shost(phba);
9459 if (error) {
9460 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9461 "1407 Failed to create scsi host.\n");
9462 goto out_unset_driver_resource;
9463 }
9464
9465 /* Configure sysfs attributes */
9466 vport = phba->pport;
9467 error = lpfc_alloc_sysfs_attr(vport);
9468 if (error) {
9469 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9470 "1476 Failed to allocate sysfs attr\n");
9471 goto out_destroy_shost;
9472 }
9473
9474 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9475 /* Now, trying to enable interrupt and bring up the device */
9476 cfg_mode = phba->cfg_use_msi;
9477 while (true) {
9478 /* Put device to a known state before enabling interrupt */
9479 lpfc_stop_port(phba);
9480 /* Configure and enable interrupt */
9481 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9482 if (intr_mode == LPFC_INTR_ERROR) {
9483 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9484 "0431 Failed to enable interrupt.\n");
9485 error = -ENODEV;
9486 goto out_free_sysfs_attr;
9487 }
9488 /* SLI-3 HBA setup */
9489 if (lpfc_sli_hba_setup(phba)) {
9490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9491 "1477 Failed to set up hba\n");
9492 error = -ENODEV;
9493 goto out_remove_device;
9494 }
9495
9496 /* Wait 50ms for the interrupts of previous mailbox commands */
9497 msleep(50);
9498 /* Check active interrupts on message signaled interrupts */
9499 if (intr_mode == 0 ||
9500 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9501 /* Log the current active interrupt mode */
9502 phba->intr_mode = intr_mode;
9503 lpfc_log_intr_mode(phba, intr_mode);
9504 break;
9505 } else {
9506 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9507 "0447 Configure interrupt mode (%d) "
9508 "failed active interrupt test.\n",
9509 intr_mode);
9510 /* Disable the current interrupt mode */
9511 lpfc_sli_disable_intr(phba);
9512 /* Try next level of interrupt mode */
9513 cfg_mode = --intr_mode;
9514 }
9515 }
9516
9517 /* Perform post initialization setup */
9518 lpfc_post_init_setup(phba);
9519
9520 /* Check if there are static vports to be created. */
9521 lpfc_create_static_vport(phba);
9522
9523 return 0;
9524
9525 out_remove_device:
9526 lpfc_unset_hba(phba);
9527 out_free_sysfs_attr:
9528 lpfc_free_sysfs_attr(vport);
9529 out_destroy_shost:
9530 lpfc_destroy_shost(phba);
9531 out_unset_driver_resource:
9532 lpfc_unset_driver_resource_phase2(phba);
9533 out_free_iocb_list:
9534 lpfc_free_iocb_list(phba);
9535 out_unset_driver_resource_s3:
9536 lpfc_sli_driver_resource_unset(phba);
9537 out_unset_pci_mem_s3:
9538 lpfc_sli_pci_mem_unset(phba);
9539 out_disable_pci_dev:
9540 lpfc_disable_pci_dev(phba);
9541 if (shost)
9542 scsi_host_put(shost);
9543 out_free_phba:
9544 lpfc_hba_free(phba);
9545 return error;
9546 }
9547
9548 /**
9549 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9550 * @pdev: pointer to PCI device
9551 *
9552 * This routine is to be called to disattach a device with SLI-3 interface
9553 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9554 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9555 * device to be removed from the PCI subsystem properly.
9556 **/
9557 static void
lpfc_pci_remove_one_s3(struct pci_dev * pdev)9558 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9559 {
9560 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9561 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9562 struct lpfc_vport **vports;
9563 struct lpfc_hba *phba = vport->phba;
9564 int i;
9565 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9566
9567 spin_lock_irq(&phba->hbalock);
9568 vport->load_flag |= FC_UNLOADING;
9569 spin_unlock_irq(&phba->hbalock);
9570
9571 lpfc_free_sysfs_attr(vport);
9572
9573 /* Release all the vports against this physical port */
9574 vports = lpfc_create_vport_work_array(phba);
9575 if (vports != NULL)
9576 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9577 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9578 continue;
9579 fc_vport_terminate(vports[i]->fc_vport);
9580 }
9581 lpfc_destroy_vport_work_array(phba, vports);
9582
9583 /* Remove FC host and then SCSI host with the physical port */
9584 fc_remove_host(shost);
9585 scsi_remove_host(shost);
9586 lpfc_cleanup(vport);
9587
9588 /*
9589 * Bring down the SLI Layer. This step disable all interrupts,
9590 * clears the rings, discards all mailbox commands, and resets
9591 * the HBA.
9592 */
9593
9594 /* HBA interrupt will be disabled after this call */
9595 lpfc_sli_hba_down(phba);
9596 /* Stop kthread signal shall trigger work_done one more time */
9597 kthread_stop(phba->worker_thread);
9598 /* Final cleanup of txcmplq and reset the HBA */
9599 lpfc_sli_brdrestart(phba);
9600
9601 kfree(phba->vpi_bmask);
9602 kfree(phba->vpi_ids);
9603
9604 lpfc_stop_hba_timers(phba);
9605 spin_lock_irq(&phba->hbalock);
9606 list_del_init(&vport->listentry);
9607 spin_unlock_irq(&phba->hbalock);
9608
9609 lpfc_debugfs_terminate(vport);
9610
9611 /* Disable SR-IOV if enabled */
9612 if (phba->cfg_sriov_nr_virtfn)
9613 pci_disable_sriov(pdev);
9614
9615 /* Disable interrupt */
9616 lpfc_sli_disable_intr(phba);
9617
9618 scsi_host_put(shost);
9619
9620 /*
9621 * Call scsi_free before mem_free since scsi bufs are released to their
9622 * corresponding pools here.
9623 */
9624 lpfc_scsi_free(phba);
9625 lpfc_mem_free_all(phba);
9626
9627 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9628 phba->hbqslimp.virt, phba->hbqslimp.phys);
9629
9630 /* Free resources associated with SLI2 interface */
9631 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9632 phba->slim2p.virt, phba->slim2p.phys);
9633
9634 /* unmap adapter SLIM and Control Registers */
9635 iounmap(phba->ctrl_regs_memmap_p);
9636 iounmap(phba->slim_memmap_p);
9637
9638 lpfc_hba_free(phba);
9639
9640 pci_release_selected_regions(pdev, bars);
9641 pci_disable_device(pdev);
9642 }
9643
9644 /**
9645 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9646 * @pdev: pointer to PCI device
9647 * @msg: power management message
9648 *
9649 * This routine is to be called from the kernel's PCI subsystem to support
9650 * system Power Management (PM) to device with SLI-3 interface spec. When
9651 * PM invokes this method, it quiesces the device by stopping the driver's
9652 * worker thread for the device, turning off device's interrupt and DMA,
9653 * and bring the device offline. Note that as the driver implements the
9654 * minimum PM requirements to a power-aware driver's PM support for the
9655 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9656 * to the suspend() method call will be treated as SUSPEND and the driver will
9657 * fully reinitialize its device during resume() method call, the driver will
9658 * set device to PCI_D3hot state in PCI config space instead of setting it
9659 * according to the @msg provided by the PM.
9660 *
9661 * Return code
9662 * 0 - driver suspended the device
9663 * Error otherwise
9664 **/
9665 static int
lpfc_pci_suspend_one_s3(struct pci_dev * pdev,pm_message_t msg)9666 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9667 {
9668 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9669 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9670
9671 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9672 "0473 PCI device Power Management suspend.\n");
9673
9674 /* Bring down the device */
9675 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9676 lpfc_offline(phba);
9677 kthread_stop(phba->worker_thread);
9678
9679 /* Disable interrupt from device */
9680 lpfc_sli_disable_intr(phba);
9681
9682 /* Save device state to PCI config space */
9683 pci_save_state(pdev);
9684 pci_set_power_state(pdev, PCI_D3hot);
9685
9686 return 0;
9687 }
9688
9689 /**
9690 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9691 * @pdev: pointer to PCI device
9692 *
9693 * This routine is to be called from the kernel's PCI subsystem to support
9694 * system Power Management (PM) to device with SLI-3 interface spec. When PM
9695 * invokes this method, it restores the device's PCI config space state and
9696 * fully reinitializes the device and brings it online. Note that as the
9697 * driver implements the minimum PM requirements to a power-aware driver's
9698 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9699 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9700 * driver will fully reinitialize its device during resume() method call,
9701 * the device will be set to PCI_D0 directly in PCI config space before
9702 * restoring the state.
9703 *
9704 * Return code
9705 * 0 - driver suspended the device
9706 * Error otherwise
9707 **/
9708 static int
lpfc_pci_resume_one_s3(struct pci_dev * pdev)9709 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9710 {
9711 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9712 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9713 uint32_t intr_mode;
9714 int error;
9715
9716 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9717 "0452 PCI device Power Management resume.\n");
9718
9719 /* Restore device state from PCI config space */
9720 pci_set_power_state(pdev, PCI_D0);
9721 pci_restore_state(pdev);
9722
9723 /*
9724 * As the new kernel behavior of pci_restore_state() API call clears
9725 * device saved_state flag, need to save the restored state again.
9726 */
9727 pci_save_state(pdev);
9728
9729 if (pdev->is_busmaster)
9730 pci_set_master(pdev);
9731
9732 /* Startup the kernel thread for this host adapter. */
9733 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9734 "lpfc_worker_%d", phba->brd_no);
9735 if (IS_ERR(phba->worker_thread)) {
9736 error = PTR_ERR(phba->worker_thread);
9737 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9738 "0434 PM resume failed to start worker "
9739 "thread: error=x%x.\n", error);
9740 return error;
9741 }
9742
9743 /* Configure and enable interrupt */
9744 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9745 if (intr_mode == LPFC_INTR_ERROR) {
9746 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9747 "0430 PM resume Failed to enable interrupt\n");
9748 return -EIO;
9749 } else
9750 phba->intr_mode = intr_mode;
9751
9752 /* Restart HBA and bring it online */
9753 lpfc_sli_brdrestart(phba);
9754 lpfc_online(phba);
9755
9756 /* Log the current active interrupt mode */
9757 lpfc_log_intr_mode(phba, phba->intr_mode);
9758
9759 return 0;
9760 }
9761
9762 /**
9763 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9764 * @phba: pointer to lpfc hba data structure.
9765 *
9766 * This routine is called to prepare the SLI3 device for PCI slot recover. It
9767 * aborts all the outstanding SCSI I/Os to the pci device.
9768 **/
9769 static void
lpfc_sli_prep_dev_for_recover(struct lpfc_hba * phba)9770 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9771 {
9772 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9773 "2723 PCI channel I/O abort preparing for recovery\n");
9774
9775 /*
9776 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9777 * and let the SCSI mid-layer to retry them to recover.
9778 */
9779 lpfc_sli_abort_fcp_rings(phba);
9780 }
9781
9782 /**
9783 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9784 * @phba: pointer to lpfc hba data structure.
9785 *
9786 * This routine is called to prepare the SLI3 device for PCI slot reset. It
9787 * disables the device interrupt and pci device, and aborts the internal FCP
9788 * pending I/Os.
9789 **/
9790 static void
lpfc_sli_prep_dev_for_reset(struct lpfc_hba * phba)9791 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9792 {
9793 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9794 "2710 PCI channel disable preparing for reset\n");
9795
9796 /* Block any management I/Os to the device */
9797 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9798
9799 /* Block all SCSI devices' I/Os on the host */
9800 lpfc_scsi_dev_block(phba);
9801
9802 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9803 lpfc_sli_flush_fcp_rings(phba);
9804
9805 /* stop all timers */
9806 lpfc_stop_hba_timers(phba);
9807
9808 /* Disable interrupt and pci device */
9809 lpfc_sli_disable_intr(phba);
9810 pci_disable_device(phba->pcidev);
9811 }
9812
9813 /**
9814 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9815 * @phba: pointer to lpfc hba data structure.
9816 *
9817 * This routine is called to prepare the SLI3 device for PCI slot permanently
9818 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9819 * pending I/Os.
9820 **/
9821 static void
lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba * phba)9822 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9823 {
9824 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9825 "2711 PCI channel permanent disable for failure\n");
9826 /* Block all SCSI devices' I/Os on the host */
9827 lpfc_scsi_dev_block(phba);
9828
9829 /* stop all timers */
9830 lpfc_stop_hba_timers(phba);
9831
9832 /* Clean up all driver's outstanding SCSI I/Os */
9833 lpfc_sli_flush_fcp_rings(phba);
9834 }
9835
9836 /**
9837 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9838 * @pdev: pointer to PCI device.
9839 * @state: the current PCI connection state.
9840 *
9841 * This routine is called from the PCI subsystem for I/O error handling to
9842 * device with SLI-3 interface spec. This function is called by the PCI
9843 * subsystem after a PCI bus error affecting this device has been detected.
9844 * When this function is invoked, it will need to stop all the I/Os and
9845 * interrupt(s) to the device. Once that is done, it will return
9846 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9847 * as desired.
9848 *
9849 * Return codes
9850 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9851 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9852 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9853 **/
9854 static pci_ers_result_t
lpfc_io_error_detected_s3(struct pci_dev * pdev,pci_channel_state_t state)9855 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9856 {
9857 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9858 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9859
9860 switch (state) {
9861 case pci_channel_io_normal:
9862 /* Non-fatal error, prepare for recovery */
9863 lpfc_sli_prep_dev_for_recover(phba);
9864 return PCI_ERS_RESULT_CAN_RECOVER;
9865 case pci_channel_io_frozen:
9866 /* Fatal error, prepare for slot reset */
9867 lpfc_sli_prep_dev_for_reset(phba);
9868 return PCI_ERS_RESULT_NEED_RESET;
9869 case pci_channel_io_perm_failure:
9870 /* Permanent failure, prepare for device down */
9871 lpfc_sli_prep_dev_for_perm_failure(phba);
9872 return PCI_ERS_RESULT_DISCONNECT;
9873 default:
9874 /* Unknown state, prepare and request slot reset */
9875 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9876 "0472 Unknown PCI error state: x%x\n", state);
9877 lpfc_sli_prep_dev_for_reset(phba);
9878 return PCI_ERS_RESULT_NEED_RESET;
9879 }
9880 }
9881
9882 /**
9883 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9884 * @pdev: pointer to PCI device.
9885 *
9886 * This routine is called from the PCI subsystem for error handling to
9887 * device with SLI-3 interface spec. This is called after PCI bus has been
9888 * reset to restart the PCI card from scratch, as if from a cold-boot.
9889 * During the PCI subsystem error recovery, after driver returns
9890 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9891 * recovery and then call this routine before calling the .resume method
9892 * to recover the device. This function will initialize the HBA device,
9893 * enable the interrupt, but it will just put the HBA to offline state
9894 * without passing any I/O traffic.
9895 *
9896 * Return codes
9897 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9898 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9899 */
9900 static pci_ers_result_t
lpfc_io_slot_reset_s3(struct pci_dev * pdev)9901 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9902 {
9903 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9904 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9905 struct lpfc_sli *psli = &phba->sli;
9906 uint32_t intr_mode;
9907
9908 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9909 if (pci_enable_device_mem(pdev)) {
9910 printk(KERN_ERR "lpfc: Cannot re-enable "
9911 "PCI device after reset.\n");
9912 return PCI_ERS_RESULT_DISCONNECT;
9913 }
9914
9915 pci_restore_state(pdev);
9916
9917 /*
9918 * As the new kernel behavior of pci_restore_state() API call clears
9919 * device saved_state flag, need to save the restored state again.
9920 */
9921 pci_save_state(pdev);
9922
9923 if (pdev->is_busmaster)
9924 pci_set_master(pdev);
9925
9926 spin_lock_irq(&phba->hbalock);
9927 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9928 spin_unlock_irq(&phba->hbalock);
9929
9930 /* Configure and enable interrupt */
9931 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9932 if (intr_mode == LPFC_INTR_ERROR) {
9933 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9934 "0427 Cannot re-enable interrupt after "
9935 "slot reset.\n");
9936 return PCI_ERS_RESULT_DISCONNECT;
9937 } else
9938 phba->intr_mode = intr_mode;
9939
9940 /* Take device offline, it will perform cleanup */
9941 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9942 lpfc_offline(phba);
9943 lpfc_sli_brdrestart(phba);
9944
9945 /* Log the current active interrupt mode */
9946 lpfc_log_intr_mode(phba, phba->intr_mode);
9947
9948 return PCI_ERS_RESULT_RECOVERED;
9949 }
9950
9951 /**
9952 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9953 * @pdev: pointer to PCI device
9954 *
9955 * This routine is called from the PCI subsystem for error handling to device
9956 * with SLI-3 interface spec. It is called when kernel error recovery tells
9957 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9958 * error recovery. After this call, traffic can start to flow from this device
9959 * again.
9960 */
9961 static void
lpfc_io_resume_s3(struct pci_dev * pdev)9962 lpfc_io_resume_s3(struct pci_dev *pdev)
9963 {
9964 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9965 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9966
9967 /* Bring device online, it will be no-op for non-fatal error resume */
9968 lpfc_online(phba);
9969
9970 /* Clean up Advanced Error Reporting (AER) if needed */
9971 if (phba->hba_flag & HBA_AER_ENABLED)
9972 pci_cleanup_aer_uncorrect_error_status(pdev);
9973 }
9974
9975 /**
9976 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9977 * @phba: pointer to lpfc hba data structure.
9978 *
9979 * returns the number of ELS/CT IOCBs to reserve
9980 **/
9981 int
lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba * phba)9982 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
9983 {
9984 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
9985
9986 if (phba->sli_rev == LPFC_SLI_REV4) {
9987 if (max_xri <= 100)
9988 return 10;
9989 else if (max_xri <= 256)
9990 return 25;
9991 else if (max_xri <= 512)
9992 return 50;
9993 else if (max_xri <= 1024)
9994 return 100;
9995 else if (max_xri <= 1536)
9996 return 150;
9997 else if (max_xri <= 2048)
9998 return 200;
9999 else
10000 return 250;
10001 } else
10002 return 0;
10003 }
10004
10005 /**
10006 * lpfc_write_firmware - attempt to write a firmware image to the port
10007 * @fw: pointer to firmware image returned from request_firmware.
10008 * @phba: pointer to lpfc hba data structure.
10009 *
10010 **/
10011 static void
lpfc_write_firmware(const struct firmware * fw,void * context)10012 lpfc_write_firmware(const struct firmware *fw, void *context)
10013 {
10014 struct lpfc_hba *phba = (struct lpfc_hba *)context;
10015 char fwrev[FW_REV_STR_SIZE];
10016 struct lpfc_grp_hdr *image;
10017 struct list_head dma_buffer_list;
10018 int i, rc = 0;
10019 struct lpfc_dmabuf *dmabuf, *next;
10020 uint32_t offset = 0, temp_offset = 0;
10021
10022 /* It can be null in no-wait mode, sanity check */
10023 if (!fw) {
10024 rc = -ENXIO;
10025 goto out;
10026 }
10027 image = (struct lpfc_grp_hdr *)fw->data;
10028
10029 INIT_LIST_HEAD(&dma_buffer_list);
10030 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
10031 (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
10032 LPFC_FILE_TYPE_GROUP) ||
10033 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
10034 (be32_to_cpu(image->size) != fw->size)) {
10035 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10036 "3022 Invalid FW image found. "
10037 "Magic:%x Type:%x ID:%x\n",
10038 be32_to_cpu(image->magic_number),
10039 bf_get_be32(lpfc_grp_hdr_file_type, image),
10040 bf_get_be32(lpfc_grp_hdr_id, image));
10041 rc = -EINVAL;
10042 goto release_out;
10043 }
10044 lpfc_decode_firmware_rev(phba, fwrev, 1);
10045 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10046 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10047 "3023 Updating Firmware, Current Version:%s "
10048 "New Version:%s\n",
10049 fwrev, image->revision);
10050 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10051 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
10052 GFP_KERNEL);
10053 if (!dmabuf) {
10054 rc = -ENOMEM;
10055 goto release_out;
10056 }
10057 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
10058 SLI4_PAGE_SIZE,
10059 &dmabuf->phys,
10060 GFP_KERNEL);
10061 if (!dmabuf->virt) {
10062 kfree(dmabuf);
10063 rc = -ENOMEM;
10064 goto release_out;
10065 }
10066 list_add_tail(&dmabuf->list, &dma_buffer_list);
10067 }
10068 while (offset < fw->size) {
10069 temp_offset = offset;
10070 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
10071 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
10072 memcpy(dmabuf->virt,
10073 fw->data + temp_offset,
10074 fw->size - temp_offset);
10075 temp_offset = fw->size;
10076 break;
10077 }
10078 memcpy(dmabuf->virt, fw->data + temp_offset,
10079 SLI4_PAGE_SIZE);
10080 temp_offset += SLI4_PAGE_SIZE;
10081 }
10082 rc = lpfc_wr_object(phba, &dma_buffer_list,
10083 (fw->size - offset), &offset);
10084 if (rc)
10085 goto release_out;
10086 }
10087 rc = offset;
10088 }
10089
10090 release_out:
10091 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
10092 list_del(&dmabuf->list);
10093 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
10094 dmabuf->virt, dmabuf->phys);
10095 kfree(dmabuf);
10096 }
10097 release_firmware(fw);
10098 out:
10099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10100 "3024 Firmware update done: %d.\n", rc);
10101 return;
10102 }
10103
10104 /**
10105 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
10106 * @phba: pointer to lpfc hba data structure.
10107 *
10108 * This routine is called to perform Linux generic firmware upgrade on device
10109 * that supports such feature.
10110 **/
10111 int
lpfc_sli4_request_firmware_update(struct lpfc_hba * phba,uint8_t fw_upgrade)10112 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
10113 {
10114 uint8_t file_name[ELX_MODEL_NAME_SIZE];
10115 int ret;
10116 const struct firmware *fw;
10117
10118 /* Only supported on SLI4 interface type 2 for now */
10119 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10120 LPFC_SLI_INTF_IF_TYPE_2)
10121 return -EPERM;
10122
10123 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
10124
10125 if (fw_upgrade == INT_FW_UPGRADE) {
10126 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
10127 file_name, &phba->pcidev->dev,
10128 GFP_KERNEL, (void *)phba,
10129 lpfc_write_firmware);
10130 } else if (fw_upgrade == RUN_FW_UPGRADE) {
10131 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
10132 if (!ret)
10133 lpfc_write_firmware(fw, (void *)phba);
10134 } else {
10135 ret = -EINVAL;
10136 }
10137
10138 return ret;
10139 }
10140
10141 /**
10142 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
10143 * @pdev: pointer to PCI device
10144 * @pid: pointer to PCI device identifier
10145 *
10146 * This routine is called from the kernel's PCI subsystem to device with
10147 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10148 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10149 * information of the device and driver to see if the driver state that it
10150 * can support this kind of device. If the match is successful, the driver
10151 * core invokes this routine. If this routine determines it can claim the HBA,
10152 * it does all the initialization that it needs to do to handle the HBA
10153 * properly.
10154 *
10155 * Return code
10156 * 0 - driver can claim the device
10157 * negative value - driver can not claim the device
10158 **/
10159 static int
lpfc_pci_probe_one_s4(struct pci_dev * pdev,const struct pci_device_id * pid)10160 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
10161 {
10162 struct lpfc_hba *phba;
10163 struct lpfc_vport *vport = NULL;
10164 struct Scsi_Host *shost = NULL;
10165 int error, ret;
10166 uint32_t cfg_mode, intr_mode;
10167 int adjusted_fcp_io_channel;
10168
10169 /* Allocate memory for HBA structure */
10170 phba = lpfc_hba_alloc(pdev);
10171 if (!phba)
10172 return -ENOMEM;
10173
10174 /* Perform generic PCI device enabling operation */
10175 error = lpfc_enable_pci_dev(phba);
10176 if (error)
10177 goto out_free_phba;
10178
10179 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
10180 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
10181 if (error)
10182 goto out_disable_pci_dev;
10183
10184 /* Set up SLI-4 specific device PCI memory space */
10185 error = lpfc_sli4_pci_mem_setup(phba);
10186 if (error) {
10187 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10188 "1410 Failed to set up pci memory space.\n");
10189 goto out_disable_pci_dev;
10190 }
10191
10192 /* Set up phase-1 common device driver resources */
10193 error = lpfc_setup_driver_resource_phase1(phba);
10194 if (error) {
10195 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10196 "1411 Failed to set up driver resource.\n");
10197 goto out_unset_pci_mem_s4;
10198 }
10199
10200 /* Set up SLI-4 Specific device driver resources */
10201 error = lpfc_sli4_driver_resource_setup(phba);
10202 if (error) {
10203 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10204 "1412 Failed to set up driver resource.\n");
10205 goto out_unset_pci_mem_s4;
10206 }
10207
10208 /* Initialize and populate the iocb list per host */
10209
10210 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10211 "2821 initialize iocb list %d.\n",
10212 phba->cfg_iocb_cnt*1024);
10213 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10214
10215 if (error) {
10216 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10217 "1413 Failed to initialize iocb list.\n");
10218 goto out_unset_driver_resource_s4;
10219 }
10220
10221 INIT_LIST_HEAD(&phba->active_rrq_list);
10222 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10223
10224 /* Set up common device driver resources */
10225 error = lpfc_setup_driver_resource_phase2(phba);
10226 if (error) {
10227 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10228 "1414 Failed to set up driver resource.\n");
10229 goto out_free_iocb_list;
10230 }
10231
10232 /* Get the default values for Model Name and Description */
10233 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10234
10235 /* Create SCSI host to the physical port */
10236 error = lpfc_create_shost(phba);
10237 if (error) {
10238 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10239 "1415 Failed to create scsi host.\n");
10240 goto out_unset_driver_resource;
10241 }
10242
10243 /* Configure sysfs attributes */
10244 vport = phba->pport;
10245 error = lpfc_alloc_sysfs_attr(vport);
10246 if (error) {
10247 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10248 "1416 Failed to allocate sysfs attr\n");
10249 goto out_destroy_shost;
10250 }
10251
10252 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10253 /* Now, trying to enable interrupt and bring up the device */
10254 cfg_mode = phba->cfg_use_msi;
10255
10256 /* Put device to a known state before enabling interrupt */
10257 lpfc_stop_port(phba);
10258 /* Configure and enable interrupt */
10259 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10260 if (intr_mode == LPFC_INTR_ERROR) {
10261 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10262 "0426 Failed to enable interrupt.\n");
10263 error = -ENODEV;
10264 goto out_free_sysfs_attr;
10265 }
10266 /* Default to single EQ for non-MSI-X */
10267 if (phba->intr_type != MSIX)
10268 adjusted_fcp_io_channel = 1;
10269 else
10270 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10271 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10272 /* Set up SLI-4 HBA */
10273 if (lpfc_sli4_hba_setup(phba)) {
10274 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10275 "1421 Failed to set up hba\n");
10276 error = -ENODEV;
10277 goto out_disable_intr;
10278 }
10279
10280 /* Log the current active interrupt mode */
10281 phba->intr_mode = intr_mode;
10282 lpfc_log_intr_mode(phba, intr_mode);
10283
10284 /* Perform post initialization setup */
10285 lpfc_post_init_setup(phba);
10286
10287 /* check for firmware upgrade or downgrade */
10288 if (phba->cfg_request_firmware_upgrade)
10289 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10290
10291 /* Check if there are static vports to be created. */
10292 lpfc_create_static_vport(phba);
10293 return 0;
10294
10295 out_disable_intr:
10296 lpfc_sli4_disable_intr(phba);
10297 out_free_sysfs_attr:
10298 lpfc_free_sysfs_attr(vport);
10299 out_destroy_shost:
10300 lpfc_destroy_shost(phba);
10301 out_unset_driver_resource:
10302 lpfc_unset_driver_resource_phase2(phba);
10303 out_free_iocb_list:
10304 lpfc_free_iocb_list(phba);
10305 out_unset_driver_resource_s4:
10306 lpfc_sli4_driver_resource_unset(phba);
10307 out_unset_pci_mem_s4:
10308 lpfc_sli4_pci_mem_unset(phba);
10309 out_disable_pci_dev:
10310 lpfc_disable_pci_dev(phba);
10311 if (shost)
10312 scsi_host_put(shost);
10313 out_free_phba:
10314 lpfc_hba_free(phba);
10315 return error;
10316 }
10317
10318 /**
10319 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10320 * @pdev: pointer to PCI device
10321 *
10322 * This routine is called from the kernel's PCI subsystem to device with
10323 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10324 * removed from PCI bus, it performs all the necessary cleanup for the HBA
10325 * device to be removed from the PCI subsystem properly.
10326 **/
10327 static void
lpfc_pci_remove_one_s4(struct pci_dev * pdev)10328 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10329 {
10330 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10331 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10332 struct lpfc_vport **vports;
10333 struct lpfc_hba *phba = vport->phba;
10334 int i;
10335
10336 /* Mark the device unloading flag */
10337 spin_lock_irq(&phba->hbalock);
10338 vport->load_flag |= FC_UNLOADING;
10339 spin_unlock_irq(&phba->hbalock);
10340
10341 /* Free the HBA sysfs attributes */
10342 lpfc_free_sysfs_attr(vport);
10343
10344 /* Release all the vports against this physical port */
10345 vports = lpfc_create_vport_work_array(phba);
10346 if (vports != NULL)
10347 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10348 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10349 continue;
10350 fc_vport_terminate(vports[i]->fc_vport);
10351 }
10352 lpfc_destroy_vport_work_array(phba, vports);
10353
10354 /* Remove FC host and then SCSI host with the physical port */
10355 fc_remove_host(shost);
10356 scsi_remove_host(shost);
10357
10358 /* Perform cleanup on the physical port */
10359 lpfc_cleanup(vport);
10360
10361 /*
10362 * Bring down the SLI Layer. This step disables all interrupts,
10363 * clears the rings, discards all mailbox commands, and resets
10364 * the HBA FCoE function.
10365 */
10366 lpfc_debugfs_terminate(vport);
10367 lpfc_sli4_hba_unset(phba);
10368
10369 spin_lock_irq(&phba->hbalock);
10370 list_del_init(&vport->listentry);
10371 spin_unlock_irq(&phba->hbalock);
10372
10373 /* Perform scsi free before driver resource_unset since scsi
10374 * buffers are released to their corresponding pools here.
10375 */
10376 lpfc_scsi_free(phba);
10377
10378 lpfc_sli4_driver_resource_unset(phba);
10379
10380 /* Unmap adapter Control and Doorbell registers */
10381 lpfc_sli4_pci_mem_unset(phba);
10382
10383 /* Release PCI resources and disable device's PCI function */
10384 scsi_host_put(shost);
10385 lpfc_disable_pci_dev(phba);
10386
10387 /* Finally, free the driver's device data structure */
10388 lpfc_hba_free(phba);
10389
10390 return;
10391 }
10392
10393 /**
10394 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10395 * @pdev: pointer to PCI device
10396 * @msg: power management message
10397 *
10398 * This routine is called from the kernel's PCI subsystem to support system
10399 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10400 * this method, it quiesces the device by stopping the driver's worker
10401 * thread for the device, turning off device's interrupt and DMA, and bring
10402 * the device offline. Note that as the driver implements the minimum PM
10403 * requirements to a power-aware driver's PM support for suspend/resume -- all
10404 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10405 * method call will be treated as SUSPEND and the driver will fully
10406 * reinitialize its device during resume() method call, the driver will set
10407 * device to PCI_D3hot state in PCI config space instead of setting it
10408 * according to the @msg provided by the PM.
10409 *
10410 * Return code
10411 * 0 - driver suspended the device
10412 * Error otherwise
10413 **/
10414 static int
lpfc_pci_suspend_one_s4(struct pci_dev * pdev,pm_message_t msg)10415 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10416 {
10417 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10418 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10419
10420 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10421 "2843 PCI device Power Management suspend.\n");
10422
10423 /* Bring down the device */
10424 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10425 lpfc_offline(phba);
10426 kthread_stop(phba->worker_thread);
10427
10428 /* Disable interrupt from device */
10429 lpfc_sli4_disable_intr(phba);
10430 lpfc_sli4_queue_destroy(phba);
10431
10432 /* Save device state to PCI config space */
10433 pci_save_state(pdev);
10434 pci_set_power_state(pdev, PCI_D3hot);
10435
10436 return 0;
10437 }
10438
10439 /**
10440 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10441 * @pdev: pointer to PCI device
10442 *
10443 * This routine is called from the kernel's PCI subsystem to support system
10444 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10445 * this method, it restores the device's PCI config space state and fully
10446 * reinitializes the device and brings it online. Note that as the driver
10447 * implements the minimum PM requirements to a power-aware driver's PM for
10448 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10449 * to the suspend() method call will be treated as SUSPEND and the driver
10450 * will fully reinitialize its device during resume() method call, the device
10451 * will be set to PCI_D0 directly in PCI config space before restoring the
10452 * state.
10453 *
10454 * Return code
10455 * 0 - driver suspended the device
10456 * Error otherwise
10457 **/
10458 static int
lpfc_pci_resume_one_s4(struct pci_dev * pdev)10459 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10460 {
10461 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10462 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10463 uint32_t intr_mode;
10464 int error;
10465
10466 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10467 "0292 PCI device Power Management resume.\n");
10468
10469 /* Restore device state from PCI config space */
10470 pci_set_power_state(pdev, PCI_D0);
10471 pci_restore_state(pdev);
10472
10473 /*
10474 * As the new kernel behavior of pci_restore_state() API call clears
10475 * device saved_state flag, need to save the restored state again.
10476 */
10477 pci_save_state(pdev);
10478
10479 if (pdev->is_busmaster)
10480 pci_set_master(pdev);
10481
10482 /* Startup the kernel thread for this host adapter. */
10483 phba->worker_thread = kthread_run(lpfc_do_work, phba,
10484 "lpfc_worker_%d", phba->brd_no);
10485 if (IS_ERR(phba->worker_thread)) {
10486 error = PTR_ERR(phba->worker_thread);
10487 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10488 "0293 PM resume failed to start worker "
10489 "thread: error=x%x.\n", error);
10490 return error;
10491 }
10492
10493 /* Configure and enable interrupt */
10494 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10495 if (intr_mode == LPFC_INTR_ERROR) {
10496 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10497 "0294 PM resume Failed to enable interrupt\n");
10498 return -EIO;
10499 } else
10500 phba->intr_mode = intr_mode;
10501
10502 /* Restart HBA and bring it online */
10503 lpfc_sli_brdrestart(phba);
10504 lpfc_online(phba);
10505
10506 /* Log the current active interrupt mode */
10507 lpfc_log_intr_mode(phba, phba->intr_mode);
10508
10509 return 0;
10510 }
10511
10512 /**
10513 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10514 * @phba: pointer to lpfc hba data structure.
10515 *
10516 * This routine is called to prepare the SLI4 device for PCI slot recover. It
10517 * aborts all the outstanding SCSI I/Os to the pci device.
10518 **/
10519 static void
lpfc_sli4_prep_dev_for_recover(struct lpfc_hba * phba)10520 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10521 {
10522 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10523 "2828 PCI channel I/O abort preparing for recovery\n");
10524 /*
10525 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10526 * and let the SCSI mid-layer to retry them to recover.
10527 */
10528 lpfc_sli_abort_fcp_rings(phba);
10529 }
10530
10531 /**
10532 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10533 * @phba: pointer to lpfc hba data structure.
10534 *
10535 * This routine is called to prepare the SLI4 device for PCI slot reset. It
10536 * disables the device interrupt and pci device, and aborts the internal FCP
10537 * pending I/Os.
10538 **/
10539 static void
lpfc_sli4_prep_dev_for_reset(struct lpfc_hba * phba)10540 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10541 {
10542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10543 "2826 PCI channel disable preparing for reset\n");
10544
10545 /* Block any management I/Os to the device */
10546 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10547
10548 /* Block all SCSI devices' I/Os on the host */
10549 lpfc_scsi_dev_block(phba);
10550
10551 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10552 lpfc_sli_flush_fcp_rings(phba);
10553
10554 /* stop all timers */
10555 lpfc_stop_hba_timers(phba);
10556
10557 /* Disable interrupt and pci device */
10558 lpfc_sli4_disable_intr(phba);
10559 lpfc_sli4_queue_destroy(phba);
10560 pci_disable_device(phba->pcidev);
10561 }
10562
10563 /**
10564 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10565 * @phba: pointer to lpfc hba data structure.
10566 *
10567 * This routine is called to prepare the SLI4 device for PCI slot permanently
10568 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10569 * pending I/Os.
10570 **/
10571 static void
lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba * phba)10572 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10573 {
10574 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10575 "2827 PCI channel permanent disable for failure\n");
10576
10577 /* Block all SCSI devices' I/Os on the host */
10578 lpfc_scsi_dev_block(phba);
10579
10580 /* stop all timers */
10581 lpfc_stop_hba_timers(phba);
10582
10583 /* Clean up all driver's outstanding SCSI I/Os */
10584 lpfc_sli_flush_fcp_rings(phba);
10585 }
10586
10587 /**
10588 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10589 * @pdev: pointer to PCI device.
10590 * @state: the current PCI connection state.
10591 *
10592 * This routine is called from the PCI subsystem for error handling to device
10593 * with SLI-4 interface spec. This function is called by the PCI subsystem
10594 * after a PCI bus error affecting this device has been detected. When this
10595 * function is invoked, it will need to stop all the I/Os and interrupt(s)
10596 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10597 * for the PCI subsystem to perform proper recovery as desired.
10598 *
10599 * Return codes
10600 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10601 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10602 **/
10603 static pci_ers_result_t
lpfc_io_error_detected_s4(struct pci_dev * pdev,pci_channel_state_t state)10604 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10605 {
10606 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10607 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10608
10609 switch (state) {
10610 case pci_channel_io_normal:
10611 /* Non-fatal error, prepare for recovery */
10612 lpfc_sli4_prep_dev_for_recover(phba);
10613 return PCI_ERS_RESULT_CAN_RECOVER;
10614 case pci_channel_io_frozen:
10615 /* Fatal error, prepare for slot reset */
10616 lpfc_sli4_prep_dev_for_reset(phba);
10617 return PCI_ERS_RESULT_NEED_RESET;
10618 case pci_channel_io_perm_failure:
10619 /* Permanent failure, prepare for device down */
10620 lpfc_sli4_prep_dev_for_perm_failure(phba);
10621 return PCI_ERS_RESULT_DISCONNECT;
10622 default:
10623 /* Unknown state, prepare and request slot reset */
10624 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10625 "2825 Unknown PCI error state: x%x\n", state);
10626 lpfc_sli4_prep_dev_for_reset(phba);
10627 return PCI_ERS_RESULT_NEED_RESET;
10628 }
10629 }
10630
10631 /**
10632 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10633 * @pdev: pointer to PCI device.
10634 *
10635 * This routine is called from the PCI subsystem for error handling to device
10636 * with SLI-4 interface spec. It is called after PCI bus has been reset to
10637 * restart the PCI card from scratch, as if from a cold-boot. During the
10638 * PCI subsystem error recovery, after the driver returns
10639 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10640 * recovery and then call this routine before calling the .resume method to
10641 * recover the device. This function will initialize the HBA device, enable
10642 * the interrupt, but it will just put the HBA to offline state without
10643 * passing any I/O traffic.
10644 *
10645 * Return codes
10646 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10647 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10648 */
10649 static pci_ers_result_t
lpfc_io_slot_reset_s4(struct pci_dev * pdev)10650 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10651 {
10652 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10653 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10654 struct lpfc_sli *psli = &phba->sli;
10655 uint32_t intr_mode;
10656
10657 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10658 if (pci_enable_device_mem(pdev)) {
10659 printk(KERN_ERR "lpfc: Cannot re-enable "
10660 "PCI device after reset.\n");
10661 return PCI_ERS_RESULT_DISCONNECT;
10662 }
10663
10664 pci_restore_state(pdev);
10665
10666 /*
10667 * As the new kernel behavior of pci_restore_state() API call clears
10668 * device saved_state flag, need to save the restored state again.
10669 */
10670 pci_save_state(pdev);
10671
10672 if (pdev->is_busmaster)
10673 pci_set_master(pdev);
10674
10675 spin_lock_irq(&phba->hbalock);
10676 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10677 spin_unlock_irq(&phba->hbalock);
10678
10679 /* Configure and enable interrupt */
10680 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10681 if (intr_mode == LPFC_INTR_ERROR) {
10682 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10683 "2824 Cannot re-enable interrupt after "
10684 "slot reset.\n");
10685 return PCI_ERS_RESULT_DISCONNECT;
10686 } else
10687 phba->intr_mode = intr_mode;
10688
10689 /* Log the current active interrupt mode */
10690 lpfc_log_intr_mode(phba, phba->intr_mode);
10691
10692 return PCI_ERS_RESULT_RECOVERED;
10693 }
10694
10695 /**
10696 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10697 * @pdev: pointer to PCI device
10698 *
10699 * This routine is called from the PCI subsystem for error handling to device
10700 * with SLI-4 interface spec. It is called when kernel error recovery tells
10701 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10702 * error recovery. After this call, traffic can start to flow from this device
10703 * again.
10704 **/
10705 static void
lpfc_io_resume_s4(struct pci_dev * pdev)10706 lpfc_io_resume_s4(struct pci_dev *pdev)
10707 {
10708 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10709 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10710
10711 /*
10712 * In case of slot reset, as function reset is performed through
10713 * mailbox command which needs DMA to be enabled, this operation
10714 * has to be moved to the io resume phase. Taking device offline
10715 * will perform the necessary cleanup.
10716 */
10717 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10718 /* Perform device reset */
10719 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10720 lpfc_offline(phba);
10721 lpfc_sli_brdrestart(phba);
10722 /* Bring the device back online */
10723 lpfc_online(phba);
10724 }
10725
10726 /* Clean up Advanced Error Reporting (AER) if needed */
10727 if (phba->hba_flag & HBA_AER_ENABLED)
10728 pci_cleanup_aer_uncorrect_error_status(pdev);
10729 }
10730
10731 /**
10732 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10733 * @pdev: pointer to PCI device
10734 * @pid: pointer to PCI device identifier
10735 *
10736 * This routine is to be registered to the kernel's PCI subsystem. When an
10737 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10738 * at PCI device-specific information of the device and driver to see if the
10739 * driver state that it can support this kind of device. If the match is
10740 * successful, the driver core invokes this routine. This routine dispatches
10741 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10742 * do all the initialization that it needs to do to handle the HBA device
10743 * properly.
10744 *
10745 * Return code
10746 * 0 - driver can claim the device
10747 * negative value - driver can not claim the device
10748 **/
10749 static int
lpfc_pci_probe_one(struct pci_dev * pdev,const struct pci_device_id * pid)10750 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10751 {
10752 int rc;
10753 struct lpfc_sli_intf intf;
10754
10755 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10756 return -ENODEV;
10757
10758 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10759 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10760 rc = lpfc_pci_probe_one_s4(pdev, pid);
10761 else
10762 rc = lpfc_pci_probe_one_s3(pdev, pid);
10763
10764 return rc;
10765 }
10766
10767 /**
10768 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10769 * @pdev: pointer to PCI device
10770 *
10771 * This routine is to be registered to the kernel's PCI subsystem. When an
10772 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10773 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10774 * remove routine, which will perform all the necessary cleanup for the
10775 * device to be removed from the PCI subsystem properly.
10776 **/
10777 static void
lpfc_pci_remove_one(struct pci_dev * pdev)10778 lpfc_pci_remove_one(struct pci_dev *pdev)
10779 {
10780 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10781 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10782
10783 switch (phba->pci_dev_grp) {
10784 case LPFC_PCI_DEV_LP:
10785 lpfc_pci_remove_one_s3(pdev);
10786 break;
10787 case LPFC_PCI_DEV_OC:
10788 lpfc_pci_remove_one_s4(pdev);
10789 break;
10790 default:
10791 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10792 "1424 Invalid PCI device group: 0x%x\n",
10793 phba->pci_dev_grp);
10794 break;
10795 }
10796 return;
10797 }
10798
10799 /**
10800 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10801 * @pdev: pointer to PCI device
10802 * @msg: power management message
10803 *
10804 * This routine is to be registered to the kernel's PCI subsystem to support
10805 * system Power Management (PM). When PM invokes this method, it dispatches
10806 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10807 * suspend the device.
10808 *
10809 * Return code
10810 * 0 - driver suspended the device
10811 * Error otherwise
10812 **/
10813 static int
lpfc_pci_suspend_one(struct pci_dev * pdev,pm_message_t msg)10814 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10815 {
10816 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10817 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10818 int rc = -ENODEV;
10819
10820 switch (phba->pci_dev_grp) {
10821 case LPFC_PCI_DEV_LP:
10822 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10823 break;
10824 case LPFC_PCI_DEV_OC:
10825 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10826 break;
10827 default:
10828 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10829 "1425 Invalid PCI device group: 0x%x\n",
10830 phba->pci_dev_grp);
10831 break;
10832 }
10833 return rc;
10834 }
10835
10836 /**
10837 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10838 * @pdev: pointer to PCI device
10839 *
10840 * This routine is to be registered to the kernel's PCI subsystem to support
10841 * system Power Management (PM). When PM invokes this method, it dispatches
10842 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10843 * resume the device.
10844 *
10845 * Return code
10846 * 0 - driver suspended the device
10847 * Error otherwise
10848 **/
10849 static int
lpfc_pci_resume_one(struct pci_dev * pdev)10850 lpfc_pci_resume_one(struct pci_dev *pdev)
10851 {
10852 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10853 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10854 int rc = -ENODEV;
10855
10856 switch (phba->pci_dev_grp) {
10857 case LPFC_PCI_DEV_LP:
10858 rc = lpfc_pci_resume_one_s3(pdev);
10859 break;
10860 case LPFC_PCI_DEV_OC:
10861 rc = lpfc_pci_resume_one_s4(pdev);
10862 break;
10863 default:
10864 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10865 "1426 Invalid PCI device group: 0x%x\n",
10866 phba->pci_dev_grp);
10867 break;
10868 }
10869 return rc;
10870 }
10871
10872 /**
10873 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10874 * @pdev: pointer to PCI device.
10875 * @state: the current PCI connection state.
10876 *
10877 * This routine is registered to the PCI subsystem for error handling. This
10878 * function is called by the PCI subsystem after a PCI bus error affecting
10879 * this device has been detected. When this routine is invoked, it dispatches
10880 * the action to the proper SLI-3 or SLI-4 device error detected handling
10881 * routine, which will perform the proper error detected operation.
10882 *
10883 * Return codes
10884 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10885 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10886 **/
10887 static pci_ers_result_t
lpfc_io_error_detected(struct pci_dev * pdev,pci_channel_state_t state)10888 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10889 {
10890 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10891 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10892 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10893
10894 switch (phba->pci_dev_grp) {
10895 case LPFC_PCI_DEV_LP:
10896 rc = lpfc_io_error_detected_s3(pdev, state);
10897 break;
10898 case LPFC_PCI_DEV_OC:
10899 rc = lpfc_io_error_detected_s4(pdev, state);
10900 break;
10901 default:
10902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10903 "1427 Invalid PCI device group: 0x%x\n",
10904 phba->pci_dev_grp);
10905 break;
10906 }
10907 return rc;
10908 }
10909
10910 /**
10911 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10912 * @pdev: pointer to PCI device.
10913 *
10914 * This routine is registered to the PCI subsystem for error handling. This
10915 * function is called after PCI bus has been reset to restart the PCI card
10916 * from scratch, as if from a cold-boot. When this routine is invoked, it
10917 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10918 * routine, which will perform the proper device reset.
10919 *
10920 * Return codes
10921 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10922 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10923 **/
10924 static pci_ers_result_t
lpfc_io_slot_reset(struct pci_dev * pdev)10925 lpfc_io_slot_reset(struct pci_dev *pdev)
10926 {
10927 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10928 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10929 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10930
10931 switch (phba->pci_dev_grp) {
10932 case LPFC_PCI_DEV_LP:
10933 rc = lpfc_io_slot_reset_s3(pdev);
10934 break;
10935 case LPFC_PCI_DEV_OC:
10936 rc = lpfc_io_slot_reset_s4(pdev);
10937 break;
10938 default:
10939 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10940 "1428 Invalid PCI device group: 0x%x\n",
10941 phba->pci_dev_grp);
10942 break;
10943 }
10944 return rc;
10945 }
10946
10947 /**
10948 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10949 * @pdev: pointer to PCI device
10950 *
10951 * This routine is registered to the PCI subsystem for error handling. It
10952 * is called when kernel error recovery tells the lpfc driver that it is
10953 * OK to resume normal PCI operation after PCI bus error recovery. When
10954 * this routine is invoked, it dispatches the action to the proper SLI-3
10955 * or SLI-4 device io_resume routine, which will resume the device operation.
10956 **/
10957 static void
lpfc_io_resume(struct pci_dev * pdev)10958 lpfc_io_resume(struct pci_dev *pdev)
10959 {
10960 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10961 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10962
10963 switch (phba->pci_dev_grp) {
10964 case LPFC_PCI_DEV_LP:
10965 lpfc_io_resume_s3(pdev);
10966 break;
10967 case LPFC_PCI_DEV_OC:
10968 lpfc_io_resume_s4(pdev);
10969 break;
10970 default:
10971 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10972 "1429 Invalid PCI device group: 0x%x\n",
10973 phba->pci_dev_grp);
10974 break;
10975 }
10976 return;
10977 }
10978
10979 /**
10980 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
10981 * @phba: pointer to lpfc hba data structure.
10982 *
10983 * This routine checks to see if OAS is supported for this adapter. If
10984 * supported, the configure Flash Optimized Fabric flag is set. Otherwise,
10985 * the enable oas flag is cleared and the pool created for OAS device data
10986 * is destroyed.
10987 *
10988 **/
10989 void
lpfc_sli4_oas_verify(struct lpfc_hba * phba)10990 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
10991 {
10992
10993 if (!phba->cfg_EnableXLane)
10994 return;
10995
10996 if (phba->sli4_hba.pc_sli4_params.oas_supported) {
10997 phba->cfg_fof = 1;
10998 } else {
10999 phba->cfg_fof = 0;
11000 if (phba->device_data_mem_pool)
11001 mempool_destroy(phba->device_data_mem_pool);
11002 phba->device_data_mem_pool = NULL;
11003 }
11004
11005 return;
11006 }
11007
11008 /**
11009 * lpfc_fof_queue_setup - Set up all the fof queues
11010 * @phba: pointer to lpfc hba data structure.
11011 *
11012 * This routine is invoked to set up all the fof queues for the FC HBA
11013 * operation.
11014 *
11015 * Return codes
11016 * 0 - successful
11017 * -ENOMEM - No available memory
11018 **/
11019 int
lpfc_fof_queue_setup(struct lpfc_hba * phba)11020 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11021 {
11022 struct lpfc_sli *psli = &phba->sli;
11023 int rc;
11024
11025 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
11026 if (rc)
11027 return -ENOMEM;
11028
11029 if (phba->cfg_fof) {
11030
11031 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
11032 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
11033 if (rc)
11034 goto out_oas_cq;
11035
11036 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
11037 phba->sli4_hba.oas_cq, LPFC_FCP);
11038 if (rc)
11039 goto out_oas_wq;
11040
11041 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
11042 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
11043 }
11044
11045 return 0;
11046
11047 out_oas_wq:
11048 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
11049 out_oas_cq:
11050 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
11051 return rc;
11052
11053 }
11054
11055 /**
11056 * lpfc_fof_queue_create - Create all the fof queues
11057 * @phba: pointer to lpfc hba data structure.
11058 *
11059 * This routine is invoked to allocate all the fof queues for the FC HBA
11060 * operation. For each SLI4 queue type, the parameters such as queue entry
11061 * count (queue depth) shall be taken from the module parameter. For now,
11062 * we just use some constant number as place holder.
11063 *
11064 * Return codes
11065 * 0 - successful
11066 * -ENOMEM - No availble memory
11067 * -EIO - The mailbox failed to complete successfully.
11068 **/
11069 int
lpfc_fof_queue_create(struct lpfc_hba * phba)11070 lpfc_fof_queue_create(struct lpfc_hba *phba)
11071 {
11072 struct lpfc_queue *qdesc;
11073
11074 /* Create FOF EQ */
11075 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
11076 phba->sli4_hba.eq_ecount);
11077 if (!qdesc)
11078 goto out_error;
11079
11080 phba->sli4_hba.fof_eq = qdesc;
11081
11082 if (phba->cfg_fof) {
11083
11084 /* Create OAS CQ */
11085 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
11086 phba->sli4_hba.cq_ecount);
11087 if (!qdesc)
11088 goto out_error;
11089
11090 phba->sli4_hba.oas_cq = qdesc;
11091
11092 /* Create OAS WQ */
11093 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
11094 phba->sli4_hba.wq_ecount);
11095 if (!qdesc)
11096 goto out_error;
11097
11098 phba->sli4_hba.oas_wq = qdesc;
11099
11100 }
11101 return 0;
11102
11103 out_error:
11104 lpfc_fof_queue_destroy(phba);
11105 return -ENOMEM;
11106 }
11107
11108 /**
11109 * lpfc_fof_queue_destroy - Destroy all the fof queues
11110 * @phba: pointer to lpfc hba data structure.
11111 *
11112 * This routine is invoked to release all the SLI4 queues with the FC HBA
11113 * operation.
11114 *
11115 * Return codes
11116 * 0 - successful
11117 **/
11118 int
lpfc_fof_queue_destroy(struct lpfc_hba * phba)11119 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
11120 {
11121 /* Release FOF Event queue */
11122 if (phba->sli4_hba.fof_eq != NULL) {
11123 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
11124 phba->sli4_hba.fof_eq = NULL;
11125 }
11126
11127 /* Release OAS Completion queue */
11128 if (phba->sli4_hba.oas_cq != NULL) {
11129 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
11130 phba->sli4_hba.oas_cq = NULL;
11131 }
11132
11133 /* Release OAS Work queue */
11134 if (phba->sli4_hba.oas_wq != NULL) {
11135 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
11136 phba->sli4_hba.oas_wq = NULL;
11137 }
11138 return 0;
11139 }
11140
11141 static struct pci_device_id lpfc_id_table[] = {
11142 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
11143 PCI_ANY_ID, PCI_ANY_ID, },
11144 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
11145 PCI_ANY_ID, PCI_ANY_ID, },
11146 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
11147 PCI_ANY_ID, PCI_ANY_ID, },
11148 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
11149 PCI_ANY_ID, PCI_ANY_ID, },
11150 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
11151 PCI_ANY_ID, PCI_ANY_ID, },
11152 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
11153 PCI_ANY_ID, PCI_ANY_ID, },
11154 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
11155 PCI_ANY_ID, PCI_ANY_ID, },
11156 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
11157 PCI_ANY_ID, PCI_ANY_ID, },
11158 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
11159 PCI_ANY_ID, PCI_ANY_ID, },
11160 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
11161 PCI_ANY_ID, PCI_ANY_ID, },
11162 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
11163 PCI_ANY_ID, PCI_ANY_ID, },
11164 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
11165 PCI_ANY_ID, PCI_ANY_ID, },
11166 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
11167 PCI_ANY_ID, PCI_ANY_ID, },
11168 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
11169 PCI_ANY_ID, PCI_ANY_ID, },
11170 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
11171 PCI_ANY_ID, PCI_ANY_ID, },
11172 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
11173 PCI_ANY_ID, PCI_ANY_ID, },
11174 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
11175 PCI_ANY_ID, PCI_ANY_ID, },
11176 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
11177 PCI_ANY_ID, PCI_ANY_ID, },
11178 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
11179 PCI_ANY_ID, PCI_ANY_ID, },
11180 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
11181 PCI_ANY_ID, PCI_ANY_ID, },
11182 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
11183 PCI_ANY_ID, PCI_ANY_ID, },
11184 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
11185 PCI_ANY_ID, PCI_ANY_ID, },
11186 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
11187 PCI_ANY_ID, PCI_ANY_ID, },
11188 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
11189 PCI_ANY_ID, PCI_ANY_ID, },
11190 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
11191 PCI_ANY_ID, PCI_ANY_ID, },
11192 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
11193 PCI_ANY_ID, PCI_ANY_ID, },
11194 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
11195 PCI_ANY_ID, PCI_ANY_ID, },
11196 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
11197 PCI_ANY_ID, PCI_ANY_ID, },
11198 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
11199 PCI_ANY_ID, PCI_ANY_ID, },
11200 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
11201 PCI_ANY_ID, PCI_ANY_ID, },
11202 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
11203 PCI_ANY_ID, PCI_ANY_ID, },
11204 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
11205 PCI_ANY_ID, PCI_ANY_ID, },
11206 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
11207 PCI_ANY_ID, PCI_ANY_ID, },
11208 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
11209 PCI_ANY_ID, PCI_ANY_ID, },
11210 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
11211 PCI_ANY_ID, PCI_ANY_ID, },
11212 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
11213 PCI_ANY_ID, PCI_ANY_ID, },
11214 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
11215 PCI_ANY_ID, PCI_ANY_ID, },
11216 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
11217 PCI_ANY_ID, PCI_ANY_ID, },
11218 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
11219 PCI_ANY_ID, PCI_ANY_ID, },
11220 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
11221 PCI_ANY_ID, PCI_ANY_ID, },
11222 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
11223 PCI_ANY_ID, PCI_ANY_ID, },
11224 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
11225 PCI_ANY_ID, PCI_ANY_ID, },
11226 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
11227 PCI_ANY_ID, PCI_ANY_ID, },
11228 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
11229 PCI_ANY_ID, PCI_ANY_ID, },
11230 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
11231 PCI_ANY_ID, PCI_ANY_ID, },
11232 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
11233 PCI_ANY_ID, PCI_ANY_ID, },
11234 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
11235 PCI_ANY_ID, PCI_ANY_ID, },
11236 { 0 }
11237 };
11238
11239 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
11240
11241 static const struct pci_error_handlers lpfc_err_handler = {
11242 .error_detected = lpfc_io_error_detected,
11243 .slot_reset = lpfc_io_slot_reset,
11244 .resume = lpfc_io_resume,
11245 };
11246
11247 static struct pci_driver lpfc_driver = {
11248 .name = LPFC_DRIVER_NAME,
11249 .id_table = lpfc_id_table,
11250 .probe = lpfc_pci_probe_one,
11251 .remove = lpfc_pci_remove_one,
11252 .shutdown = lpfc_pci_remove_one,
11253 .suspend = lpfc_pci_suspend_one,
11254 .resume = lpfc_pci_resume_one,
11255 .err_handler = &lpfc_err_handler,
11256 };
11257
11258 static const struct file_operations lpfc_mgmt_fop = {
11259 .owner = THIS_MODULE,
11260 };
11261
11262 static struct miscdevice lpfc_mgmt_dev = {
11263 .minor = MISC_DYNAMIC_MINOR,
11264 .name = "lpfcmgmt",
11265 .fops = &lpfc_mgmt_fop,
11266 };
11267
11268 /**
11269 * lpfc_init - lpfc module initialization routine
11270 *
11271 * This routine is to be invoked when the lpfc module is loaded into the
11272 * kernel. The special kernel macro module_init() is used to indicate the
11273 * role of this routine to the kernel as lpfc module entry point.
11274 *
11275 * Return codes
11276 * 0 - successful
11277 * -ENOMEM - FC attach transport failed
11278 * all others - failed
11279 */
11280 static int __init
lpfc_init(void)11281 lpfc_init(void)
11282 {
11283 int cpu;
11284 int error = 0;
11285
11286 printk(LPFC_MODULE_DESC "\n");
11287 printk(LPFC_COPYRIGHT "\n");
11288
11289 error = misc_register(&lpfc_mgmt_dev);
11290 if (error)
11291 printk(KERN_ERR "Could not register lpfcmgmt device, "
11292 "misc_register returned with status %d", error);
11293
11294 if (lpfc_enable_npiv) {
11295 lpfc_transport_functions.vport_create = lpfc_vport_create;
11296 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
11297 }
11298 lpfc_transport_template =
11299 fc_attach_transport(&lpfc_transport_functions);
11300 if (lpfc_transport_template == NULL)
11301 return -ENOMEM;
11302 if (lpfc_enable_npiv) {
11303 lpfc_vport_transport_template =
11304 fc_attach_transport(&lpfc_vport_transport_functions);
11305 if (lpfc_vport_transport_template == NULL) {
11306 fc_release_transport(lpfc_transport_template);
11307 return -ENOMEM;
11308 }
11309 }
11310
11311 /* Initialize in case vector mapping is needed */
11312 lpfc_used_cpu = NULL;
11313 lpfc_present_cpu = 0;
11314 for_each_present_cpu(cpu)
11315 lpfc_present_cpu++;
11316
11317 error = pci_register_driver(&lpfc_driver);
11318 if (error) {
11319 fc_release_transport(lpfc_transport_template);
11320 if (lpfc_enable_npiv)
11321 fc_release_transport(lpfc_vport_transport_template);
11322 }
11323
11324 return error;
11325 }
11326
11327 /**
11328 * lpfc_exit - lpfc module removal routine
11329 *
11330 * This routine is invoked when the lpfc module is removed from the kernel.
11331 * The special kernel macro module_exit() is used to indicate the role of
11332 * this routine to the kernel as lpfc module exit point.
11333 */
11334 static void __exit
lpfc_exit(void)11335 lpfc_exit(void)
11336 {
11337 misc_deregister(&lpfc_mgmt_dev);
11338 pci_unregister_driver(&lpfc_driver);
11339 fc_release_transport(lpfc_transport_template);
11340 if (lpfc_enable_npiv)
11341 fc_release_transport(lpfc_vport_transport_template);
11342 if (_dump_buf_data) {
11343 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11344 "_dump_buf_data at 0x%p\n",
11345 (1L << _dump_buf_data_order), _dump_buf_data);
11346 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11347 }
11348
11349 if (_dump_buf_dif) {
11350 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11351 "_dump_buf_dif at 0x%p\n",
11352 (1L << _dump_buf_dif_order), _dump_buf_dif);
11353 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11354 }
11355 kfree(lpfc_used_cpu);
11356 }
11357
11358 module_init(lpfc_init);
11359 module_exit(lpfc_exit);
11360 MODULE_LICENSE("GPL");
11361 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11362 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11363 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
11364