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Merge tag 'apparmor-pr-2017-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git...
[mirror_ubuntu-bionic-kernel.git] / drivers / scsi / lpfc / lpfc_init.c
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
8 * www.broadcom.com *
9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
10 * *
11 * This program is free software; you can redistribute it and/or *
12 * modify it under the terms of version 2 of the GNU General *
13 * Public License as published by the Free Software Foundation. *
14 * This program is distributed in the hope that it will be useful. *
15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19 * TO BE LEGALLY INVALID. See the GNU General Public License for *
20 * more details, a copy of which can be found in the file COPYING *
21 * included with this package. *
22 *******************************************************************/
23
24 #include <linux/blkdev.h>
25 #include <linux/delay.h>
26 #include <linux/dma-mapping.h>
27 #include <linux/idr.h>
28 #include <linux/interrupt.h>
29 #include <linux/module.h>
30 #include <linux/kthread.h>
31 #include <linux/pci.h>
32 #include <linux/spinlock.h>
33 #include <linux/ctype.h>
34 #include <linux/aer.h>
35 #include <linux/slab.h>
36 #include <linux/firmware.h>
37 #include <linux/miscdevice.h>
38 #include <linux/percpu.h>
39 #include <linux/msi.h>
40 #include <linux/bitops.h>
41
42 #include <scsi/scsi.h>
43 #include <scsi/scsi_device.h>
44 #include <scsi/scsi_host.h>
45 #include <scsi/scsi_transport_fc.h>
46 #include <scsi/scsi_tcq.h>
47 #include <scsi/fc/fc_fs.h>
48
49 #include <linux/nvme-fc-driver.h>
50
51 #include "lpfc_hw4.h"
52 #include "lpfc_hw.h"
53 #include "lpfc_sli.h"
54 #include "lpfc_sli4.h"
55 #include "lpfc_nl.h"
56 #include "lpfc_disc.h"
57 #include "lpfc.h"
58 #include "lpfc_scsi.h"
59 #include "lpfc_nvme.h"
60 #include "lpfc_nvmet.h"
61 #include "lpfc_logmsg.h"
62 #include "lpfc_crtn.h"
63 #include "lpfc_vport.h"
64 #include "lpfc_version.h"
65 #include "lpfc_ids.h"
66
67 char *_dump_buf_data;
68 unsigned long _dump_buf_data_order;
69 char *_dump_buf_dif;
70 unsigned long _dump_buf_dif_order;
71 spinlock_t _dump_buf_lock;
72
73 /* Used when mapping IRQ vectors in a driver centric manner */
74 uint16_t *lpfc_used_cpu;
75 uint32_t lpfc_present_cpu;
76
77 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
78 static int lpfc_post_rcv_buf(struct lpfc_hba *);
79 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
80 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
81 static int lpfc_setup_endian_order(struct lpfc_hba *);
82 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
83 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
84 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
85 static void lpfc_init_sgl_list(struct lpfc_hba *);
86 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
87 static void lpfc_free_active_sgl(struct lpfc_hba *);
88 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
89 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
90 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
91 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
92 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
93 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
94 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
95 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
96
97 static struct scsi_transport_template *lpfc_transport_template = NULL;
98 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
99 static DEFINE_IDR(lpfc_hba_index);
100 #define LPFC_NVMET_BUF_POST 254
101
102 /**
103 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
104 * @phba: pointer to lpfc hba data structure.
105 *
106 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
107 * mailbox command. It retrieves the revision information from the HBA and
108 * collects the Vital Product Data (VPD) about the HBA for preparing the
109 * configuration of the HBA.
110 *
111 * Return codes:
112 * 0 - success.
113 * -ERESTART - requests the SLI layer to reset the HBA and try again.
114 * Any other value - indicates an error.
115 **/
116 int
117 lpfc_config_port_prep(struct lpfc_hba *phba)
118 {
119 lpfc_vpd_t *vp = &phba->vpd;
120 int i = 0, rc;
121 LPFC_MBOXQ_t *pmb;
122 MAILBOX_t *mb;
123 char *lpfc_vpd_data = NULL;
124 uint16_t offset = 0;
125 static char licensed[56] =
126 "key unlock for use with gnu public licensed code only\0";
127 static int init_key = 1;
128
129 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
130 if (!pmb) {
131 phba->link_state = LPFC_HBA_ERROR;
132 return -ENOMEM;
133 }
134
135 mb = &pmb->u.mb;
136 phba->link_state = LPFC_INIT_MBX_CMDS;
137
138 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
139 if (init_key) {
140 uint32_t *ptext = (uint32_t *) licensed;
141
142 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
143 *ptext = cpu_to_be32(*ptext);
144 init_key = 0;
145 }
146
147 lpfc_read_nv(phba, pmb);
148 memset((char*)mb->un.varRDnvp.rsvd3, 0,
149 sizeof (mb->un.varRDnvp.rsvd3));
150 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
151 sizeof (licensed));
152
153 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
154
155 if (rc != MBX_SUCCESS) {
156 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
157 "0324 Config Port initialization "
158 "error, mbxCmd x%x READ_NVPARM, "
159 "mbxStatus x%x\n",
160 mb->mbxCommand, mb->mbxStatus);
161 mempool_free(pmb, phba->mbox_mem_pool);
162 return -ERESTART;
163 }
164 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
165 sizeof(phba->wwnn));
166 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
167 sizeof(phba->wwpn));
168 }
169
170 phba->sli3_options = 0x0;
171
172 /* Setup and issue mailbox READ REV command */
173 lpfc_read_rev(phba, pmb);
174 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
175 if (rc != MBX_SUCCESS) {
176 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
177 "0439 Adapter failed to init, mbxCmd x%x "
178 "READ_REV, mbxStatus x%x\n",
179 mb->mbxCommand, mb->mbxStatus);
180 mempool_free( pmb, phba->mbox_mem_pool);
181 return -ERESTART;
182 }
183
184
185 /*
186 * The value of rr must be 1 since the driver set the cv field to 1.
187 * This setting requires the FW to set all revision fields.
188 */
189 if (mb->un.varRdRev.rr == 0) {
190 vp->rev.rBit = 0;
191 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
192 "0440 Adapter failed to init, READ_REV has "
193 "missing revision information.\n");
194 mempool_free(pmb, phba->mbox_mem_pool);
195 return -ERESTART;
196 }
197
198 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
199 mempool_free(pmb, phba->mbox_mem_pool);
200 return -EINVAL;
201 }
202
203 /* Save information as VPD data */
204 vp->rev.rBit = 1;
205 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
206 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
207 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
208 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
209 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
210 vp->rev.biuRev = mb->un.varRdRev.biuRev;
211 vp->rev.smRev = mb->un.varRdRev.smRev;
212 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
213 vp->rev.endecRev = mb->un.varRdRev.endecRev;
214 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
215 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
216 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
217 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
218 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
219 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
220
221 /* If the sli feature level is less then 9, we must
222 * tear down all RPIs and VPIs on link down if NPIV
223 * is enabled.
224 */
225 if (vp->rev.feaLevelHigh < 9)
226 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
227
228 if (lpfc_is_LC_HBA(phba->pcidev->device))
229 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
230 sizeof (phba->RandomData));
231
232 /* Get adapter VPD information */
233 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
234 if (!lpfc_vpd_data)
235 goto out_free_mbox;
236 do {
237 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
238 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
239
240 if (rc != MBX_SUCCESS) {
241 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
242 "0441 VPD not present on adapter, "
243 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
244 mb->mbxCommand, mb->mbxStatus);
245 mb->un.varDmp.word_cnt = 0;
246 }
247 /* dump mem may return a zero when finished or we got a
248 * mailbox error, either way we are done.
249 */
250 if (mb->un.varDmp.word_cnt == 0)
251 break;
252 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
253 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
254 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
255 lpfc_vpd_data + offset,
256 mb->un.varDmp.word_cnt);
257 offset += mb->un.varDmp.word_cnt;
258 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
259 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
260
261 kfree(lpfc_vpd_data);
262 out_free_mbox:
263 mempool_free(pmb, phba->mbox_mem_pool);
264 return 0;
265 }
266
267 /**
268 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
269 * @phba: pointer to lpfc hba data structure.
270 * @pmboxq: pointer to the driver internal queue element for mailbox command.
271 *
272 * This is the completion handler for driver's configuring asynchronous event
273 * mailbox command to the device. If the mailbox command returns successfully,
274 * it will set internal async event support flag to 1; otherwise, it will
275 * set internal async event support flag to 0.
276 **/
277 static void
278 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
279 {
280 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
281 phba->temp_sensor_support = 1;
282 else
283 phba->temp_sensor_support = 0;
284 mempool_free(pmboxq, phba->mbox_mem_pool);
285 return;
286 }
287
288 /**
289 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
290 * @phba: pointer to lpfc hba data structure.
291 * @pmboxq: pointer to the driver internal queue element for mailbox command.
292 *
293 * This is the completion handler for dump mailbox command for getting
294 * wake up parameters. When this command complete, the response contain
295 * Option rom version of the HBA. This function translate the version number
296 * into a human readable string and store it in OptionROMVersion.
297 **/
298 static void
299 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
300 {
301 struct prog_id *prg;
302 uint32_t prog_id_word;
303 char dist = ' ';
304 /* character array used for decoding dist type. */
305 char dist_char[] = "nabx";
306
307 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
308 mempool_free(pmboxq, phba->mbox_mem_pool);
309 return;
310 }
311
312 prg = (struct prog_id *) &prog_id_word;
313
314 /* word 7 contain option rom version */
315 prog_id_word = pmboxq->u.mb.un.varWords[7];
316
317 /* Decode the Option rom version word to a readable string */
318 if (prg->dist < 4)
319 dist = dist_char[prg->dist];
320
321 if ((prg->dist == 3) && (prg->num == 0))
322 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
323 prg->ver, prg->rev, prg->lev);
324 else
325 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
326 prg->ver, prg->rev, prg->lev,
327 dist, prg->num);
328 mempool_free(pmboxq, phba->mbox_mem_pool);
329 return;
330 }
331
332 /**
333 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
334 * cfg_soft_wwnn, cfg_soft_wwpn
335 * @vport: pointer to lpfc vport data structure.
336 *
337 *
338 * Return codes
339 * None.
340 **/
341 void
342 lpfc_update_vport_wwn(struct lpfc_vport *vport)
343 {
344 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
345 u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
346
347 /* If the soft name exists then update it using the service params */
348 if (vport->phba->cfg_soft_wwnn)
349 u64_to_wwn(vport->phba->cfg_soft_wwnn,
350 vport->fc_sparam.nodeName.u.wwn);
351 if (vport->phba->cfg_soft_wwpn)
352 u64_to_wwn(vport->phba->cfg_soft_wwpn,
353 vport->fc_sparam.portName.u.wwn);
354
355 /*
356 * If the name is empty or there exists a soft name
357 * then copy the service params name, otherwise use the fc name
358 */
359 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
360 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
361 sizeof(struct lpfc_name));
362 else
363 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
364 sizeof(struct lpfc_name));
365
366 /*
367 * If the port name has changed, then set the Param changes flag
368 * to unreg the login
369 */
370 if (vport->fc_portname.u.wwn[0] != 0 &&
371 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
372 sizeof(struct lpfc_name)))
373 vport->vport_flag |= FAWWPN_PARAM_CHG;
374
375 if (vport->fc_portname.u.wwn[0] == 0 ||
376 vport->phba->cfg_soft_wwpn ||
377 (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
378 vport->vport_flag & FAWWPN_SET) {
379 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
380 sizeof(struct lpfc_name));
381 vport->vport_flag &= ~FAWWPN_SET;
382 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
383 vport->vport_flag |= FAWWPN_SET;
384 }
385 else
386 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
387 sizeof(struct lpfc_name));
388 }
389
390 /**
391 * lpfc_config_port_post - Perform lpfc initialization after config port
392 * @phba: pointer to lpfc hba data structure.
393 *
394 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
395 * command call. It performs all internal resource and state setups on the
396 * port: post IOCB buffers, enable appropriate host interrupt attentions,
397 * ELS ring timers, etc.
398 *
399 * Return codes
400 * 0 - success.
401 * Any other value - error.
402 **/
403 int
404 lpfc_config_port_post(struct lpfc_hba *phba)
405 {
406 struct lpfc_vport *vport = phba->pport;
407 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
408 LPFC_MBOXQ_t *pmb;
409 MAILBOX_t *mb;
410 struct lpfc_dmabuf *mp;
411 struct lpfc_sli *psli = &phba->sli;
412 uint32_t status, timeout;
413 int i, j;
414 int rc;
415
416 spin_lock_irq(&phba->hbalock);
417 /*
418 * If the Config port completed correctly the HBA is not
419 * over heated any more.
420 */
421 if (phba->over_temp_state == HBA_OVER_TEMP)
422 phba->over_temp_state = HBA_NORMAL_TEMP;
423 spin_unlock_irq(&phba->hbalock);
424
425 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
426 if (!pmb) {
427 phba->link_state = LPFC_HBA_ERROR;
428 return -ENOMEM;
429 }
430 mb = &pmb->u.mb;
431
432 /* Get login parameters for NID. */
433 rc = lpfc_read_sparam(phba, pmb, 0);
434 if (rc) {
435 mempool_free(pmb, phba->mbox_mem_pool);
436 return -ENOMEM;
437 }
438
439 pmb->vport = vport;
440 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
441 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
442 "0448 Adapter failed init, mbxCmd x%x "
443 "READ_SPARM mbxStatus x%x\n",
444 mb->mbxCommand, mb->mbxStatus);
445 phba->link_state = LPFC_HBA_ERROR;
446 mp = (struct lpfc_dmabuf *) pmb->context1;
447 mempool_free(pmb, phba->mbox_mem_pool);
448 lpfc_mbuf_free(phba, mp->virt, mp->phys);
449 kfree(mp);
450 return -EIO;
451 }
452
453 mp = (struct lpfc_dmabuf *) pmb->context1;
454
455 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
456 lpfc_mbuf_free(phba, mp->virt, mp->phys);
457 kfree(mp);
458 pmb->context1 = NULL;
459 lpfc_update_vport_wwn(vport);
460
461 /* Update the fc_host data structures with new wwn. */
462 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
463 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
464 fc_host_max_npiv_vports(shost) = phba->max_vpi;
465
466 /* If no serial number in VPD data, use low 6 bytes of WWNN */
467 /* This should be consolidated into parse_vpd ? - mr */
468 if (phba->SerialNumber[0] == 0) {
469 uint8_t *outptr;
470
471 outptr = &vport->fc_nodename.u.s.IEEE[0];
472 for (i = 0; i < 12; i++) {
473 status = *outptr++;
474 j = ((status & 0xf0) >> 4);
475 if (j <= 9)
476 phba->SerialNumber[i] =
477 (char)((uint8_t) 0x30 + (uint8_t) j);
478 else
479 phba->SerialNumber[i] =
480 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
481 i++;
482 j = (status & 0xf);
483 if (j <= 9)
484 phba->SerialNumber[i] =
485 (char)((uint8_t) 0x30 + (uint8_t) j);
486 else
487 phba->SerialNumber[i] =
488 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
489 }
490 }
491
492 lpfc_read_config(phba, pmb);
493 pmb->vport = vport;
494 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
495 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
496 "0453 Adapter failed to init, mbxCmd x%x "
497 "READ_CONFIG, mbxStatus x%x\n",
498 mb->mbxCommand, mb->mbxStatus);
499 phba->link_state = LPFC_HBA_ERROR;
500 mempool_free( pmb, phba->mbox_mem_pool);
501 return -EIO;
502 }
503
504 /* Check if the port is disabled */
505 lpfc_sli_read_link_ste(phba);
506
507 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
508 i = (mb->un.varRdConfig.max_xri + 1);
509 if (phba->cfg_hba_queue_depth > i) {
510 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
511 "3359 HBA queue depth changed from %d to %d\n",
512 phba->cfg_hba_queue_depth, i);
513 phba->cfg_hba_queue_depth = i;
514 }
515
516 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
517 i = (mb->un.varRdConfig.max_xri >> 3);
518 if (phba->pport->cfg_lun_queue_depth > i) {
519 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
520 "3360 LUN queue depth changed from %d to %d\n",
521 phba->pport->cfg_lun_queue_depth, i);
522 phba->pport->cfg_lun_queue_depth = i;
523 }
524
525 phba->lmt = mb->un.varRdConfig.lmt;
526
527 /* Get the default values for Model Name and Description */
528 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
529
530 phba->link_state = LPFC_LINK_DOWN;
531
532 /* Only process IOCBs on ELS ring till hba_state is READY */
533 if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
534 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
535 if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
536 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
537
538 /* Post receive buffers for desired rings */
539 if (phba->sli_rev != 3)
540 lpfc_post_rcv_buf(phba);
541
542 /*
543 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
544 */
545 if (phba->intr_type == MSIX) {
546 rc = lpfc_config_msi(phba, pmb);
547 if (rc) {
548 mempool_free(pmb, phba->mbox_mem_pool);
549 return -EIO;
550 }
551 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
552 if (rc != MBX_SUCCESS) {
553 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
554 "0352 Config MSI mailbox command "
555 "failed, mbxCmd x%x, mbxStatus x%x\n",
556 pmb->u.mb.mbxCommand,
557 pmb->u.mb.mbxStatus);
558 mempool_free(pmb, phba->mbox_mem_pool);
559 return -EIO;
560 }
561 }
562
563 spin_lock_irq(&phba->hbalock);
564 /* Initialize ERATT handling flag */
565 phba->hba_flag &= ~HBA_ERATT_HANDLED;
566
567 /* Enable appropriate host interrupts */
568 if (lpfc_readl(phba->HCregaddr, &status)) {
569 spin_unlock_irq(&phba->hbalock);
570 return -EIO;
571 }
572 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
573 if (psli->num_rings > 0)
574 status |= HC_R0INT_ENA;
575 if (psli->num_rings > 1)
576 status |= HC_R1INT_ENA;
577 if (psli->num_rings > 2)
578 status |= HC_R2INT_ENA;
579 if (psli->num_rings > 3)
580 status |= HC_R3INT_ENA;
581
582 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
583 (phba->cfg_poll & DISABLE_FCP_RING_INT))
584 status &= ~(HC_R0INT_ENA);
585
586 writel(status, phba->HCregaddr);
587 readl(phba->HCregaddr); /* flush */
588 spin_unlock_irq(&phba->hbalock);
589
590 /* Set up ring-0 (ELS) timer */
591 timeout = phba->fc_ratov * 2;
592 mod_timer(&vport->els_tmofunc,
593 jiffies + msecs_to_jiffies(1000 * timeout));
594 /* Set up heart beat (HB) timer */
595 mod_timer(&phba->hb_tmofunc,
596 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
597 phba->hb_outstanding = 0;
598 phba->last_completion_time = jiffies;
599 /* Set up error attention (ERATT) polling timer */
600 mod_timer(&phba->eratt_poll,
601 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
602
603 if (phba->hba_flag & LINK_DISABLED) {
604 lpfc_printf_log(phba,
605 KERN_ERR, LOG_INIT,
606 "2598 Adapter Link is disabled.\n");
607 lpfc_down_link(phba, pmb);
608 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
609 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
610 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
611 lpfc_printf_log(phba,
612 KERN_ERR, LOG_INIT,
613 "2599 Adapter failed to issue DOWN_LINK"
614 " mbox command rc 0x%x\n", rc);
615
616 mempool_free(pmb, phba->mbox_mem_pool);
617 return -EIO;
618 }
619 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
620 mempool_free(pmb, phba->mbox_mem_pool);
621 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
622 if (rc)
623 return rc;
624 }
625 /* MBOX buffer will be freed in mbox compl */
626 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
627 if (!pmb) {
628 phba->link_state = LPFC_HBA_ERROR;
629 return -ENOMEM;
630 }
631
632 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
633 pmb->mbox_cmpl = lpfc_config_async_cmpl;
634 pmb->vport = phba->pport;
635 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
636
637 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
638 lpfc_printf_log(phba,
639 KERN_ERR,
640 LOG_INIT,
641 "0456 Adapter failed to issue "
642 "ASYNCEVT_ENABLE mbox status x%x\n",
643 rc);
644 mempool_free(pmb, phba->mbox_mem_pool);
645 }
646
647 /* Get Option rom version */
648 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
649 if (!pmb) {
650 phba->link_state = LPFC_HBA_ERROR;
651 return -ENOMEM;
652 }
653
654 lpfc_dump_wakeup_param(phba, pmb);
655 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
656 pmb->vport = phba->pport;
657 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
658
659 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
660 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
661 "to get Option ROM version status x%x\n", rc);
662 mempool_free(pmb, phba->mbox_mem_pool);
663 }
664
665 return 0;
666 }
667
668 /**
669 * lpfc_hba_init_link - Initialize the FC link
670 * @phba: pointer to lpfc hba data structure.
671 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
672 *
673 * This routine will issue the INIT_LINK mailbox command call.
674 * It is available to other drivers through the lpfc_hba data
675 * structure for use as a delayed link up mechanism with the
676 * module parameter lpfc_suppress_link_up.
677 *
678 * Return code
679 * 0 - success
680 * Any other value - error
681 **/
682 static int
683 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
684 {
685 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
686 }
687
688 /**
689 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
690 * @phba: pointer to lpfc hba data structure.
691 * @fc_topology: desired fc topology.
692 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
693 *
694 * This routine will issue the INIT_LINK mailbox command call.
695 * It is available to other drivers through the lpfc_hba data
696 * structure for use as a delayed link up mechanism with the
697 * module parameter lpfc_suppress_link_up.
698 *
699 * Return code
700 * 0 - success
701 * Any other value - error
702 **/
703 int
704 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
705 uint32_t flag)
706 {
707 struct lpfc_vport *vport = phba->pport;
708 LPFC_MBOXQ_t *pmb;
709 MAILBOX_t *mb;
710 int rc;
711
712 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
713 if (!pmb) {
714 phba->link_state = LPFC_HBA_ERROR;
715 return -ENOMEM;
716 }
717 mb = &pmb->u.mb;
718 pmb->vport = vport;
719
720 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
721 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
722 !(phba->lmt & LMT_1Gb)) ||
723 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
724 !(phba->lmt & LMT_2Gb)) ||
725 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
726 !(phba->lmt & LMT_4Gb)) ||
727 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
728 !(phba->lmt & LMT_8Gb)) ||
729 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
730 !(phba->lmt & LMT_10Gb)) ||
731 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
732 !(phba->lmt & LMT_16Gb)) ||
733 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
734 !(phba->lmt & LMT_32Gb))) {
735 /* Reset link speed to auto */
736 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
737 "1302 Invalid speed for this board:%d "
738 "Reset link speed to auto.\n",
739 phba->cfg_link_speed);
740 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
741 }
742 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
743 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
744 if (phba->sli_rev < LPFC_SLI_REV4)
745 lpfc_set_loopback_flag(phba);
746 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
747 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
748 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
749 "0498 Adapter failed to init, mbxCmd x%x "
750 "INIT_LINK, mbxStatus x%x\n",
751 mb->mbxCommand, mb->mbxStatus);
752 if (phba->sli_rev <= LPFC_SLI_REV3) {
753 /* Clear all interrupt enable conditions */
754 writel(0, phba->HCregaddr);
755 readl(phba->HCregaddr); /* flush */
756 /* Clear all pending interrupts */
757 writel(0xffffffff, phba->HAregaddr);
758 readl(phba->HAregaddr); /* flush */
759 }
760 phba->link_state = LPFC_HBA_ERROR;
761 if (rc != MBX_BUSY || flag == MBX_POLL)
762 mempool_free(pmb, phba->mbox_mem_pool);
763 return -EIO;
764 }
765 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
766 if (flag == MBX_POLL)
767 mempool_free(pmb, phba->mbox_mem_pool);
768
769 return 0;
770 }
771
772 /**
773 * lpfc_hba_down_link - this routine downs the FC link
774 * @phba: pointer to lpfc hba data structure.
775 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
776 *
777 * This routine will issue the DOWN_LINK mailbox command call.
778 * It is available to other drivers through the lpfc_hba data
779 * structure for use to stop the link.
780 *
781 * Return code
782 * 0 - success
783 * Any other value - error
784 **/
785 static int
786 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
787 {
788 LPFC_MBOXQ_t *pmb;
789 int rc;
790
791 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
792 if (!pmb) {
793 phba->link_state = LPFC_HBA_ERROR;
794 return -ENOMEM;
795 }
796
797 lpfc_printf_log(phba,
798 KERN_ERR, LOG_INIT,
799 "0491 Adapter Link is disabled.\n");
800 lpfc_down_link(phba, pmb);
801 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
802 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
803 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
804 lpfc_printf_log(phba,
805 KERN_ERR, LOG_INIT,
806 "2522 Adapter failed to issue DOWN_LINK"
807 " mbox command rc 0x%x\n", rc);
808
809 mempool_free(pmb, phba->mbox_mem_pool);
810 return -EIO;
811 }
812 if (flag == MBX_POLL)
813 mempool_free(pmb, phba->mbox_mem_pool);
814
815 return 0;
816 }
817
818 /**
819 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
820 * @phba: pointer to lpfc HBA data structure.
821 *
822 * This routine will do LPFC uninitialization before the HBA is reset when
823 * bringing down the SLI Layer.
824 *
825 * Return codes
826 * 0 - success.
827 * Any other value - error.
828 **/
829 int
830 lpfc_hba_down_prep(struct lpfc_hba *phba)
831 {
832 struct lpfc_vport **vports;
833 int i;
834
835 if (phba->sli_rev <= LPFC_SLI_REV3) {
836 /* Disable interrupts */
837 writel(0, phba->HCregaddr);
838 readl(phba->HCregaddr); /* flush */
839 }
840
841 if (phba->pport->load_flag & FC_UNLOADING)
842 lpfc_cleanup_discovery_resources(phba->pport);
843 else {
844 vports = lpfc_create_vport_work_array(phba);
845 if (vports != NULL)
846 for (i = 0; i <= phba->max_vports &&
847 vports[i] != NULL; i++)
848 lpfc_cleanup_discovery_resources(vports[i]);
849 lpfc_destroy_vport_work_array(phba, vports);
850 }
851 return 0;
852 }
853
854 /**
855 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
856 * rspiocb which got deferred
857 *
858 * @phba: pointer to lpfc HBA data structure.
859 *
860 * This routine will cleanup completed slow path events after HBA is reset
861 * when bringing down the SLI Layer.
862 *
863 *
864 * Return codes
865 * void.
866 **/
867 static void
868 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
869 {
870 struct lpfc_iocbq *rspiocbq;
871 struct hbq_dmabuf *dmabuf;
872 struct lpfc_cq_event *cq_event;
873
874 spin_lock_irq(&phba->hbalock);
875 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
876 spin_unlock_irq(&phba->hbalock);
877
878 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
879 /* Get the response iocb from the head of work queue */
880 spin_lock_irq(&phba->hbalock);
881 list_remove_head(&phba->sli4_hba.sp_queue_event,
882 cq_event, struct lpfc_cq_event, list);
883 spin_unlock_irq(&phba->hbalock);
884
885 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
886 case CQE_CODE_COMPL_WQE:
887 rspiocbq = container_of(cq_event, struct lpfc_iocbq,
888 cq_event);
889 lpfc_sli_release_iocbq(phba, rspiocbq);
890 break;
891 case CQE_CODE_RECEIVE:
892 case CQE_CODE_RECEIVE_V1:
893 dmabuf = container_of(cq_event, struct hbq_dmabuf,
894 cq_event);
895 lpfc_in_buf_free(phba, &dmabuf->dbuf);
896 }
897 }
898 }
899
900 /**
901 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
902 * @phba: pointer to lpfc HBA data structure.
903 *
904 * This routine will cleanup posted ELS buffers after the HBA is reset
905 * when bringing down the SLI Layer.
906 *
907 *
908 * Return codes
909 * void.
910 **/
911 static void
912 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
913 {
914 struct lpfc_sli *psli = &phba->sli;
915 struct lpfc_sli_ring *pring;
916 struct lpfc_dmabuf *mp, *next_mp;
917 LIST_HEAD(buflist);
918 int count;
919
920 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
921 lpfc_sli_hbqbuf_free_all(phba);
922 else {
923 /* Cleanup preposted buffers on the ELS ring */
924 pring = &psli->sli3_ring[LPFC_ELS_RING];
925 spin_lock_irq(&phba->hbalock);
926 list_splice_init(&pring->postbufq, &buflist);
927 spin_unlock_irq(&phba->hbalock);
928
929 count = 0;
930 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
931 list_del(&mp->list);
932 count++;
933 lpfc_mbuf_free(phba, mp->virt, mp->phys);
934 kfree(mp);
935 }
936
937 spin_lock_irq(&phba->hbalock);
938 pring->postbufq_cnt -= count;
939 spin_unlock_irq(&phba->hbalock);
940 }
941 }
942
943 /**
944 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
945 * @phba: pointer to lpfc HBA data structure.
946 *
947 * This routine will cleanup the txcmplq after the HBA is reset when bringing
948 * down the SLI Layer.
949 *
950 * Return codes
951 * void
952 **/
953 static void
954 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
955 {
956 struct lpfc_sli *psli = &phba->sli;
957 struct lpfc_queue *qp = NULL;
958 struct lpfc_sli_ring *pring;
959 LIST_HEAD(completions);
960 int i;
961
962 if (phba->sli_rev != LPFC_SLI_REV4) {
963 for (i = 0; i < psli->num_rings; i++) {
964 pring = &psli->sli3_ring[i];
965 spin_lock_irq(&phba->hbalock);
966 /* At this point in time the HBA is either reset or DOA
967 * Nothing should be on txcmplq as it will
968 * NEVER complete.
969 */
970 list_splice_init(&pring->txcmplq, &completions);
971 pring->txcmplq_cnt = 0;
972 spin_unlock_irq(&phba->hbalock);
973
974 lpfc_sli_abort_iocb_ring(phba, pring);
975 }
976 /* Cancel all the IOCBs from the completions list */
977 lpfc_sli_cancel_iocbs(phba, &completions,
978 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
979 return;
980 }
981 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
982 pring = qp->pring;
983 if (!pring)
984 continue;
985 spin_lock_irq(&pring->ring_lock);
986 list_splice_init(&pring->txcmplq, &completions);
987 pring->txcmplq_cnt = 0;
988 spin_unlock_irq(&pring->ring_lock);
989 lpfc_sli_abort_iocb_ring(phba, pring);
990 }
991 /* Cancel all the IOCBs from the completions list */
992 lpfc_sli_cancel_iocbs(phba, &completions,
993 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
994 }
995
996 /**
997 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
998 int i;
999 * @phba: pointer to lpfc HBA data structure.
1000 *
1001 * This routine will do uninitialization after the HBA is reset when bring
1002 * down the SLI Layer.
1003 *
1004 * Return codes
1005 * 0 - success.
1006 * Any other value - error.
1007 **/
1008 static int
1009 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1010 {
1011 lpfc_hba_free_post_buf(phba);
1012 lpfc_hba_clean_txcmplq(phba);
1013 return 0;
1014 }
1015
1016 /**
1017 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1018 * @phba: pointer to lpfc HBA data structure.
1019 *
1020 * This routine will do uninitialization after the HBA is reset when bring
1021 * down the SLI Layer.
1022 *
1023 * Return codes
1024 * 0 - success.
1025 * Any other value - error.
1026 **/
1027 static int
1028 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1029 {
1030 struct lpfc_scsi_buf *psb, *psb_next;
1031 struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1032 LIST_HEAD(aborts);
1033 LIST_HEAD(nvme_aborts);
1034 LIST_HEAD(nvmet_aborts);
1035 unsigned long iflag = 0;
1036 struct lpfc_sglq *sglq_entry = NULL;
1037
1038
1039 lpfc_sli_hbqbuf_free_all(phba);
1040 lpfc_hba_clean_txcmplq(phba);
1041
1042 /* At this point in time the HBA is either reset or DOA. Either
1043 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1044 * on the lpfc_els_sgl_list so that it can either be freed if the
1045 * driver is unloading or reposted if the driver is restarting
1046 * the port.
1047 */
1048 spin_lock_irq(&phba->hbalock); /* required for lpfc_els_sgl_list and */
1049 /* scsl_buf_list */
1050 /* sgl_list_lock required because worker thread uses this
1051 * list.
1052 */
1053 spin_lock(&phba->sli4_hba.sgl_list_lock);
1054 list_for_each_entry(sglq_entry,
1055 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1056 sglq_entry->state = SGL_FREED;
1057
1058 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1059 &phba->sli4_hba.lpfc_els_sgl_list);
1060
1061
1062 spin_unlock(&phba->sli4_hba.sgl_list_lock);
1063 /* abts_scsi_buf_list_lock required because worker thread uses this
1064 * list.
1065 */
1066 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
1067 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1068 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1069 &aborts);
1070 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1071 }
1072
1073 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1074 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1075 list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list,
1076 &nvme_aborts);
1077 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1078 &nvmet_aborts);
1079 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1080 }
1081
1082 spin_unlock_irq(&phba->hbalock);
1083
1084 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1085 psb->pCmd = NULL;
1086 psb->status = IOSTAT_SUCCESS;
1087 }
1088 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1089 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1090 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1091
1092 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1093 list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) {
1094 psb->pCmd = NULL;
1095 psb->status = IOSTAT_SUCCESS;
1096 }
1097 spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag);
1098 list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put);
1099 spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag);
1100
1101 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1102 ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1103 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1104 }
1105 }
1106
1107 lpfc_sli4_free_sp_events(phba);
1108 return 0;
1109 }
1110
1111 /**
1112 * lpfc_hba_down_post - Wrapper func for hba down post routine
1113 * @phba: pointer to lpfc HBA data structure.
1114 *
1115 * This routine wraps the actual SLI3 or SLI4 routine for performing
1116 * uninitialization after the HBA is reset when bring down the SLI Layer.
1117 *
1118 * Return codes
1119 * 0 - success.
1120 * Any other value - error.
1121 **/
1122 int
1123 lpfc_hba_down_post(struct lpfc_hba *phba)
1124 {
1125 return (*phba->lpfc_hba_down_post)(phba);
1126 }
1127
1128 /**
1129 * lpfc_hb_timeout - The HBA-timer timeout handler
1130 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1131 *
1132 * This is the HBA-timer timeout handler registered to the lpfc driver. When
1133 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1134 * work-port-events bitmap and the worker thread is notified. This timeout
1135 * event will be used by the worker thread to invoke the actual timeout
1136 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1137 * be performed in the timeout handler and the HBA timeout event bit shall
1138 * be cleared by the worker thread after it has taken the event bitmap out.
1139 **/
1140 static void
1141 lpfc_hb_timeout(struct timer_list *t)
1142 {
1143 struct lpfc_hba *phba;
1144 uint32_t tmo_posted;
1145 unsigned long iflag;
1146
1147 phba = from_timer(phba, t, hb_tmofunc);
1148
1149 /* Check for heart beat timeout conditions */
1150 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1151 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1152 if (!tmo_posted)
1153 phba->pport->work_port_events |= WORKER_HB_TMO;
1154 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1155
1156 /* Tell the worker thread there is work to do */
1157 if (!tmo_posted)
1158 lpfc_worker_wake_up(phba);
1159 return;
1160 }
1161
1162 /**
1163 * lpfc_rrq_timeout - The RRQ-timer timeout handler
1164 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1165 *
1166 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1167 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1168 * work-port-events bitmap and the worker thread is notified. This timeout
1169 * event will be used by the worker thread to invoke the actual timeout
1170 * handler routine, lpfc_rrq_handler. Any periodical operations will
1171 * be performed in the timeout handler and the RRQ timeout event bit shall
1172 * be cleared by the worker thread after it has taken the event bitmap out.
1173 **/
1174 static void
1175 lpfc_rrq_timeout(struct timer_list *t)
1176 {
1177 struct lpfc_hba *phba;
1178 unsigned long iflag;
1179
1180 phba = from_timer(phba, t, rrq_tmr);
1181 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1182 if (!(phba->pport->load_flag & FC_UNLOADING))
1183 phba->hba_flag |= HBA_RRQ_ACTIVE;
1184 else
1185 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1186 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1187
1188 if (!(phba->pport->load_flag & FC_UNLOADING))
1189 lpfc_worker_wake_up(phba);
1190 }
1191
1192 /**
1193 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1194 * @phba: pointer to lpfc hba data structure.
1195 * @pmboxq: pointer to the driver internal queue element for mailbox command.
1196 *
1197 * This is the callback function to the lpfc heart-beat mailbox command.
1198 * If configured, the lpfc driver issues the heart-beat mailbox command to
1199 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1200 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1201 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1202 * heart-beat outstanding state. Once the mailbox command comes back and
1203 * no error conditions detected, the heart-beat mailbox command timer is
1204 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1205 * state is cleared for the next heart-beat. If the timer expired with the
1206 * heart-beat outstanding state set, the driver will put the HBA offline.
1207 **/
1208 static void
1209 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1210 {
1211 unsigned long drvr_flag;
1212
1213 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1214 phba->hb_outstanding = 0;
1215 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1216
1217 /* Check and reset heart-beat timer is necessary */
1218 mempool_free(pmboxq, phba->mbox_mem_pool);
1219 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1220 !(phba->link_state == LPFC_HBA_ERROR) &&
1221 !(phba->pport->load_flag & FC_UNLOADING))
1222 mod_timer(&phba->hb_tmofunc,
1223 jiffies +
1224 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1225 return;
1226 }
1227
1228 /**
1229 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1230 * @phba: pointer to lpfc hba data structure.
1231 *
1232 * This is the actual HBA-timer timeout handler to be invoked by the worker
1233 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1234 * handler performs any periodic operations needed for the device. If such
1235 * periodic event has already been attended to either in the interrupt handler
1236 * or by processing slow-ring or fast-ring events within the HBA-timer
1237 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1238 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1239 * is configured and there is no heart-beat mailbox command outstanding, a
1240 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1241 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1242 * to offline.
1243 **/
1244 void
1245 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1246 {
1247 struct lpfc_vport **vports;
1248 LPFC_MBOXQ_t *pmboxq;
1249 struct lpfc_dmabuf *buf_ptr;
1250 int retval, i;
1251 struct lpfc_sli *psli = &phba->sli;
1252 LIST_HEAD(completions);
1253 struct lpfc_queue *qp;
1254 unsigned long time_elapsed;
1255 uint32_t tick_cqe, max_cqe, val;
1256 uint64_t tot, data1, data2, data3;
1257 struct lpfc_nvmet_tgtport *tgtp;
1258 struct lpfc_register reg_data;
1259 void __iomem *eqdreg = phba->sli4_hba.u.if_type2.EQDregaddr;
1260
1261 vports = lpfc_create_vport_work_array(phba);
1262 if (vports != NULL)
1263 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1264 lpfc_rcv_seq_check_edtov(vports[i]);
1265 lpfc_fdmi_num_disc_check(vports[i]);
1266 }
1267 lpfc_destroy_vport_work_array(phba, vports);
1268
1269 if ((phba->link_state == LPFC_HBA_ERROR) ||
1270 (phba->pport->load_flag & FC_UNLOADING) ||
1271 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1272 return;
1273
1274 if (phba->cfg_auto_imax) {
1275 if (!phba->last_eqdelay_time) {
1276 phba->last_eqdelay_time = jiffies;
1277 goto skip_eqdelay;
1278 }
1279 time_elapsed = jiffies - phba->last_eqdelay_time;
1280 phba->last_eqdelay_time = jiffies;
1281
1282 tot = 0xffff;
1283 /* Check outstanding IO count */
1284 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1285 if (phba->nvmet_support) {
1286 tgtp = phba->targetport->private;
1287 /* Calculate outstanding IOs */
1288 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop);
1289 tot += atomic_read(&tgtp->xmt_fcp_release);
1290 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot;
1291 } else {
1292 tot = atomic_read(&phba->fc4NvmeIoCmpls);
1293 data1 = atomic_read(
1294 &phba->fc4NvmeInputRequests);
1295 data2 = atomic_read(
1296 &phba->fc4NvmeOutputRequests);
1297 data3 = atomic_read(
1298 &phba->fc4NvmeControlRequests);
1299 tot = (data1 + data2 + data3) - tot;
1300 }
1301 }
1302
1303 /* Interrupts per sec per EQ */
1304 val = phba->cfg_fcp_imax / phba->io_channel_irqs;
1305 tick_cqe = val / CONFIG_HZ; /* Per tick per EQ */
1306
1307 /* Assume 1 CQE/ISR, calc max CQEs allowed for time duration */
1308 max_cqe = time_elapsed * tick_cqe;
1309
1310 for (i = 0; i < phba->io_channel_irqs; i++) {
1311 /* Fast-path EQ */
1312 qp = phba->sli4_hba.hba_eq[i];
1313 if (!qp)
1314 continue;
1315
1316 /* Use no EQ delay if we don't have many outstanding
1317 * IOs, or if we are only processing 1 CQE/ISR or less.
1318 * Otherwise, assume we can process up to lpfc_fcp_imax
1319 * interrupts per HBA.
1320 */
1321 if (tot < LPFC_NODELAY_MAX_IO ||
1322 qp->EQ_cqe_cnt <= max_cqe)
1323 val = 0;
1324 else
1325 val = phba->cfg_fcp_imax;
1326
1327 if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
1328 /* Use EQ Delay Register method */
1329
1330 /* Convert for EQ Delay register */
1331 if (val) {
1332 /* First, interrupts per sec per EQ */
1333 val = phba->cfg_fcp_imax /
1334 phba->io_channel_irqs;
1335
1336 /* us delay between each interrupt */
1337 val = LPFC_SEC_TO_USEC / val;
1338 }
1339 if (val != qp->q_mode) {
1340 reg_data.word0 = 0;
1341 bf_set(lpfc_sliport_eqdelay_id,
1342 &reg_data, qp->queue_id);
1343 bf_set(lpfc_sliport_eqdelay_delay,
1344 &reg_data, val);
1345 writel(reg_data.word0, eqdreg);
1346 }
1347 } else {
1348 /* Use mbox command method */
1349 if (val != qp->q_mode)
1350 lpfc_modify_hba_eq_delay(phba, i,
1351 1, val);
1352 }
1353
1354 /*
1355 * val is cfg_fcp_imax or 0 for mbox delay or us delay
1356 * between interrupts for EQDR.
1357 */
1358 qp->q_mode = val;
1359 qp->EQ_cqe_cnt = 0;
1360 }
1361 }
1362
1363 skip_eqdelay:
1364 spin_lock_irq(&phba->pport->work_port_lock);
1365
1366 if (time_after(phba->last_completion_time +
1367 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1368 jiffies)) {
1369 spin_unlock_irq(&phba->pport->work_port_lock);
1370 if (!phba->hb_outstanding)
1371 mod_timer(&phba->hb_tmofunc,
1372 jiffies +
1373 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1374 else
1375 mod_timer(&phba->hb_tmofunc,
1376 jiffies +
1377 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1378 return;
1379 }
1380 spin_unlock_irq(&phba->pport->work_port_lock);
1381
1382 if (phba->elsbuf_cnt &&
1383 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1384 spin_lock_irq(&phba->hbalock);
1385 list_splice_init(&phba->elsbuf, &completions);
1386 phba->elsbuf_cnt = 0;
1387 phba->elsbuf_prev_cnt = 0;
1388 spin_unlock_irq(&phba->hbalock);
1389
1390 while (!list_empty(&completions)) {
1391 list_remove_head(&completions, buf_ptr,
1392 struct lpfc_dmabuf, list);
1393 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1394 kfree(buf_ptr);
1395 }
1396 }
1397 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1398
1399 /* If there is no heart beat outstanding, issue a heartbeat command */
1400 if (phba->cfg_enable_hba_heartbeat) {
1401 if (!phba->hb_outstanding) {
1402 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1403 (list_empty(&psli->mboxq))) {
1404 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1405 GFP_KERNEL);
1406 if (!pmboxq) {
1407 mod_timer(&phba->hb_tmofunc,
1408 jiffies +
1409 msecs_to_jiffies(1000 *
1410 LPFC_HB_MBOX_INTERVAL));
1411 return;
1412 }
1413
1414 lpfc_heart_beat(phba, pmboxq);
1415 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1416 pmboxq->vport = phba->pport;
1417 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1418 MBX_NOWAIT);
1419
1420 if (retval != MBX_BUSY &&
1421 retval != MBX_SUCCESS) {
1422 mempool_free(pmboxq,
1423 phba->mbox_mem_pool);
1424 mod_timer(&phba->hb_tmofunc,
1425 jiffies +
1426 msecs_to_jiffies(1000 *
1427 LPFC_HB_MBOX_INTERVAL));
1428 return;
1429 }
1430 phba->skipped_hb = 0;
1431 phba->hb_outstanding = 1;
1432 } else if (time_before_eq(phba->last_completion_time,
1433 phba->skipped_hb)) {
1434 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1435 "2857 Last completion time not "
1436 " updated in %d ms\n",
1437 jiffies_to_msecs(jiffies
1438 - phba->last_completion_time));
1439 } else
1440 phba->skipped_hb = jiffies;
1441
1442 mod_timer(&phba->hb_tmofunc,
1443 jiffies +
1444 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1445 return;
1446 } else {
1447 /*
1448 * If heart beat timeout called with hb_outstanding set
1449 * we need to give the hb mailbox cmd a chance to
1450 * complete or TMO.
1451 */
1452 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1453 "0459 Adapter heartbeat still out"
1454 "standing:last compl time was %d ms.\n",
1455 jiffies_to_msecs(jiffies
1456 - phba->last_completion_time));
1457 mod_timer(&phba->hb_tmofunc,
1458 jiffies +
1459 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1460 }
1461 } else {
1462 mod_timer(&phba->hb_tmofunc,
1463 jiffies +
1464 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1465 }
1466 }
1467
1468 /**
1469 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1470 * @phba: pointer to lpfc hba data structure.
1471 *
1472 * This routine is called to bring the HBA offline when HBA hardware error
1473 * other than Port Error 6 has been detected.
1474 **/
1475 static void
1476 lpfc_offline_eratt(struct lpfc_hba *phba)
1477 {
1478 struct lpfc_sli *psli = &phba->sli;
1479
1480 spin_lock_irq(&phba->hbalock);
1481 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1482 spin_unlock_irq(&phba->hbalock);
1483 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1484
1485 lpfc_offline(phba);
1486 lpfc_reset_barrier(phba);
1487 spin_lock_irq(&phba->hbalock);
1488 lpfc_sli_brdreset(phba);
1489 spin_unlock_irq(&phba->hbalock);
1490 lpfc_hba_down_post(phba);
1491 lpfc_sli_brdready(phba, HS_MBRDY);
1492 lpfc_unblock_mgmt_io(phba);
1493 phba->link_state = LPFC_HBA_ERROR;
1494 return;
1495 }
1496
1497 /**
1498 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1499 * @phba: pointer to lpfc hba data structure.
1500 *
1501 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1502 * other than Port Error 6 has been detected.
1503 **/
1504 void
1505 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1506 {
1507 spin_lock_irq(&phba->hbalock);
1508 phba->link_state = LPFC_HBA_ERROR;
1509 spin_unlock_irq(&phba->hbalock);
1510
1511 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1512 lpfc_offline(phba);
1513 lpfc_hba_down_post(phba);
1514 lpfc_unblock_mgmt_io(phba);
1515 }
1516
1517 /**
1518 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1519 * @phba: pointer to lpfc hba data structure.
1520 *
1521 * This routine is invoked to handle the deferred HBA hardware error
1522 * conditions. This type of error is indicated by HBA by setting ER1
1523 * and another ER bit in the host status register. The driver will
1524 * wait until the ER1 bit clears before handling the error condition.
1525 **/
1526 static void
1527 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1528 {
1529 uint32_t old_host_status = phba->work_hs;
1530 struct lpfc_sli *psli = &phba->sli;
1531
1532 /* If the pci channel is offline, ignore possible errors,
1533 * since we cannot communicate with the pci card anyway.
1534 */
1535 if (pci_channel_offline(phba->pcidev)) {
1536 spin_lock_irq(&phba->hbalock);
1537 phba->hba_flag &= ~DEFER_ERATT;
1538 spin_unlock_irq(&phba->hbalock);
1539 return;
1540 }
1541
1542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1543 "0479 Deferred Adapter Hardware Error "
1544 "Data: x%x x%x x%x\n",
1545 phba->work_hs,
1546 phba->work_status[0], phba->work_status[1]);
1547
1548 spin_lock_irq(&phba->hbalock);
1549 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1550 spin_unlock_irq(&phba->hbalock);
1551
1552
1553 /*
1554 * Firmware stops when it triggred erratt. That could cause the I/Os
1555 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1556 * SCSI layer retry it after re-establishing link.
1557 */
1558 lpfc_sli_abort_fcp_rings(phba);
1559
1560 /*
1561 * There was a firmware error. Take the hba offline and then
1562 * attempt to restart it.
1563 */
1564 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1565 lpfc_offline(phba);
1566
1567 /* Wait for the ER1 bit to clear.*/
1568 while (phba->work_hs & HS_FFER1) {
1569 msleep(100);
1570 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1571 phba->work_hs = UNPLUG_ERR ;
1572 break;
1573 }
1574 /* If driver is unloading let the worker thread continue */
1575 if (phba->pport->load_flag & FC_UNLOADING) {
1576 phba->work_hs = 0;
1577 break;
1578 }
1579 }
1580
1581 /*
1582 * This is to ptrotect against a race condition in which
1583 * first write to the host attention register clear the
1584 * host status register.
1585 */
1586 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1587 phba->work_hs = old_host_status & ~HS_FFER1;
1588
1589 spin_lock_irq(&phba->hbalock);
1590 phba->hba_flag &= ~DEFER_ERATT;
1591 spin_unlock_irq(&phba->hbalock);
1592 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1593 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1594 }
1595
1596 static void
1597 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1598 {
1599 struct lpfc_board_event_header board_event;
1600 struct Scsi_Host *shost;
1601
1602 board_event.event_type = FC_REG_BOARD_EVENT;
1603 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1604 shost = lpfc_shost_from_vport(phba->pport);
1605 fc_host_post_vendor_event(shost, fc_get_event_number(),
1606 sizeof(board_event),
1607 (char *) &board_event,
1608 LPFC_NL_VENDOR_ID);
1609 }
1610
1611 /**
1612 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1613 * @phba: pointer to lpfc hba data structure.
1614 *
1615 * This routine is invoked to handle the following HBA hardware error
1616 * conditions:
1617 * 1 - HBA error attention interrupt
1618 * 2 - DMA ring index out of range
1619 * 3 - Mailbox command came back as unknown
1620 **/
1621 static void
1622 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1623 {
1624 struct lpfc_vport *vport = phba->pport;
1625 struct lpfc_sli *psli = &phba->sli;
1626 uint32_t event_data;
1627 unsigned long temperature;
1628 struct temp_event temp_event_data;
1629 struct Scsi_Host *shost;
1630
1631 /* If the pci channel is offline, ignore possible errors,
1632 * since we cannot communicate with the pci card anyway.
1633 */
1634 if (pci_channel_offline(phba->pcidev)) {
1635 spin_lock_irq(&phba->hbalock);
1636 phba->hba_flag &= ~DEFER_ERATT;
1637 spin_unlock_irq(&phba->hbalock);
1638 return;
1639 }
1640
1641 /* If resets are disabled then leave the HBA alone and return */
1642 if (!phba->cfg_enable_hba_reset)
1643 return;
1644
1645 /* Send an internal error event to mgmt application */
1646 lpfc_board_errevt_to_mgmt(phba);
1647
1648 if (phba->hba_flag & DEFER_ERATT)
1649 lpfc_handle_deferred_eratt(phba);
1650
1651 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1652 if (phba->work_hs & HS_FFER6)
1653 /* Re-establishing Link */
1654 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1655 "1301 Re-establishing Link "
1656 "Data: x%x x%x x%x\n",
1657 phba->work_hs, phba->work_status[0],
1658 phba->work_status[1]);
1659 if (phba->work_hs & HS_FFER8)
1660 /* Device Zeroization */
1661 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1662 "2861 Host Authentication device "
1663 "zeroization Data:x%x x%x x%x\n",
1664 phba->work_hs, phba->work_status[0],
1665 phba->work_status[1]);
1666
1667 spin_lock_irq(&phba->hbalock);
1668 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1669 spin_unlock_irq(&phba->hbalock);
1670
1671 /*
1672 * Firmware stops when it triggled erratt with HS_FFER6.
1673 * That could cause the I/Os dropped by the firmware.
1674 * Error iocb (I/O) on txcmplq and let the SCSI layer
1675 * retry it after re-establishing link.
1676 */
1677 lpfc_sli_abort_fcp_rings(phba);
1678
1679 /*
1680 * There was a firmware error. Take the hba offline and then
1681 * attempt to restart it.
1682 */
1683 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1684 lpfc_offline(phba);
1685 lpfc_sli_brdrestart(phba);
1686 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1687 lpfc_unblock_mgmt_io(phba);
1688 return;
1689 }
1690 lpfc_unblock_mgmt_io(phba);
1691 } else if (phba->work_hs & HS_CRIT_TEMP) {
1692 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1693 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1694 temp_event_data.event_code = LPFC_CRIT_TEMP;
1695 temp_event_data.data = (uint32_t)temperature;
1696
1697 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1698 "0406 Adapter maximum temperature exceeded "
1699 "(%ld), taking this port offline "
1700 "Data: x%x x%x x%x\n",
1701 temperature, phba->work_hs,
1702 phba->work_status[0], phba->work_status[1]);
1703
1704 shost = lpfc_shost_from_vport(phba->pport);
1705 fc_host_post_vendor_event(shost, fc_get_event_number(),
1706 sizeof(temp_event_data),
1707 (char *) &temp_event_data,
1708 SCSI_NL_VID_TYPE_PCI
1709 | PCI_VENDOR_ID_EMULEX);
1710
1711 spin_lock_irq(&phba->hbalock);
1712 phba->over_temp_state = HBA_OVER_TEMP;
1713 spin_unlock_irq(&phba->hbalock);
1714 lpfc_offline_eratt(phba);
1715
1716 } else {
1717 /* The if clause above forces this code path when the status
1718 * failure is a value other than FFER6. Do not call the offline
1719 * twice. This is the adapter hardware error path.
1720 */
1721 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1722 "0457 Adapter Hardware Error "
1723 "Data: x%x x%x x%x\n",
1724 phba->work_hs,
1725 phba->work_status[0], phba->work_status[1]);
1726
1727 event_data = FC_REG_DUMP_EVENT;
1728 shost = lpfc_shost_from_vport(vport);
1729 fc_host_post_vendor_event(shost, fc_get_event_number(),
1730 sizeof(event_data), (char *) &event_data,
1731 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1732
1733 lpfc_offline_eratt(phba);
1734 }
1735 return;
1736 }
1737
1738 /**
1739 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1740 * @phba: pointer to lpfc hba data structure.
1741 * @mbx_action: flag for mailbox shutdown action.
1742 *
1743 * This routine is invoked to perform an SLI4 port PCI function reset in
1744 * response to port status register polling attention. It waits for port
1745 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1746 * During this process, interrupt vectors are freed and later requested
1747 * for handling possible port resource change.
1748 **/
1749 static int
1750 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1751 bool en_rn_msg)
1752 {
1753 int rc;
1754 uint32_t intr_mode;
1755
1756 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1757 LPFC_SLI_INTF_IF_TYPE_2) {
1758 /*
1759 * On error status condition, driver need to wait for port
1760 * ready before performing reset.
1761 */
1762 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1763 if (rc)
1764 return rc;
1765 }
1766
1767 /* need reset: attempt for port recovery */
1768 if (en_rn_msg)
1769 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1770 "2887 Reset Needed: Attempting Port "
1771 "Recovery...\n");
1772 lpfc_offline_prep(phba, mbx_action);
1773 lpfc_offline(phba);
1774 /* release interrupt for possible resource change */
1775 lpfc_sli4_disable_intr(phba);
1776 lpfc_sli_brdrestart(phba);
1777 /* request and enable interrupt */
1778 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1779 if (intr_mode == LPFC_INTR_ERROR) {
1780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1781 "3175 Failed to enable interrupt\n");
1782 return -EIO;
1783 }
1784 phba->intr_mode = intr_mode;
1785 rc = lpfc_online(phba);
1786 if (rc == 0)
1787 lpfc_unblock_mgmt_io(phba);
1788
1789 return rc;
1790 }
1791
1792 /**
1793 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1794 * @phba: pointer to lpfc hba data structure.
1795 *
1796 * This routine is invoked to handle the SLI4 HBA hardware error attention
1797 * conditions.
1798 **/
1799 static void
1800 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1801 {
1802 struct lpfc_vport *vport = phba->pport;
1803 uint32_t event_data;
1804 struct Scsi_Host *shost;
1805 uint32_t if_type;
1806 struct lpfc_register portstat_reg = {0};
1807 uint32_t reg_err1, reg_err2;
1808 uint32_t uerrlo_reg, uemasklo_reg;
1809 uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1810 bool en_rn_msg = true;
1811 struct temp_event temp_event_data;
1812 struct lpfc_register portsmphr_reg;
1813 int rc, i;
1814
1815 /* If the pci channel is offline, ignore possible errors, since
1816 * we cannot communicate with the pci card anyway.
1817 */
1818 if (pci_channel_offline(phba->pcidev))
1819 return;
1820
1821 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1822 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1823 switch (if_type) {
1824 case LPFC_SLI_INTF_IF_TYPE_0:
1825 pci_rd_rc1 = lpfc_readl(
1826 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1827 &uerrlo_reg);
1828 pci_rd_rc2 = lpfc_readl(
1829 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1830 &uemasklo_reg);
1831 /* consider PCI bus read error as pci_channel_offline */
1832 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1833 return;
1834 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1835 lpfc_sli4_offline_eratt(phba);
1836 return;
1837 }
1838 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1839 "7623 Checking UE recoverable");
1840
1841 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1842 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1843 &portsmphr_reg.word0))
1844 continue;
1845
1846 smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1847 &portsmphr_reg);
1848 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1849 LPFC_PORT_SEM_UE_RECOVERABLE)
1850 break;
1851 /*Sleep for 1Sec, before checking SEMAPHORE */
1852 msleep(1000);
1853 }
1854
1855 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1856 "4827 smphr_port_status x%x : Waited %dSec",
1857 smphr_port_status, i);
1858
1859 /* Recoverable UE, reset the HBA device */
1860 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1861 LPFC_PORT_SEM_UE_RECOVERABLE) {
1862 for (i = 0; i < 20; i++) {
1863 msleep(1000);
1864 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1865 &portsmphr_reg.word0) &&
1866 (LPFC_POST_STAGE_PORT_READY ==
1867 bf_get(lpfc_port_smphr_port_status,
1868 &portsmphr_reg))) {
1869 rc = lpfc_sli4_port_sta_fn_reset(phba,
1870 LPFC_MBX_NO_WAIT, en_rn_msg);
1871 if (rc == 0)
1872 return;
1873 lpfc_printf_log(phba,
1874 KERN_ERR, LOG_INIT,
1875 "4215 Failed to recover UE");
1876 break;
1877 }
1878 }
1879 }
1880 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1881 "7624 Firmware not ready: Failing UE recovery,"
1882 " waited %dSec", i);
1883 lpfc_sli4_offline_eratt(phba);
1884 break;
1885
1886 case LPFC_SLI_INTF_IF_TYPE_2:
1887 pci_rd_rc1 = lpfc_readl(
1888 phba->sli4_hba.u.if_type2.STATUSregaddr,
1889 &portstat_reg.word0);
1890 /* consider PCI bus read error as pci_channel_offline */
1891 if (pci_rd_rc1 == -EIO) {
1892 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1893 "3151 PCI bus read access failure: x%x\n",
1894 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1895 return;
1896 }
1897 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1898 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1899 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1900 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1901 "2889 Port Overtemperature event, "
1902 "taking port offline Data: x%x x%x\n",
1903 reg_err1, reg_err2);
1904
1905 phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1906 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1907 temp_event_data.event_code = LPFC_CRIT_TEMP;
1908 temp_event_data.data = 0xFFFFFFFF;
1909
1910 shost = lpfc_shost_from_vport(phba->pport);
1911 fc_host_post_vendor_event(shost, fc_get_event_number(),
1912 sizeof(temp_event_data),
1913 (char *)&temp_event_data,
1914 SCSI_NL_VID_TYPE_PCI
1915 | PCI_VENDOR_ID_EMULEX);
1916
1917 spin_lock_irq(&phba->hbalock);
1918 phba->over_temp_state = HBA_OVER_TEMP;
1919 spin_unlock_irq(&phba->hbalock);
1920 lpfc_sli4_offline_eratt(phba);
1921 return;
1922 }
1923 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1924 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1925 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1926 "3143 Port Down: Firmware Update "
1927 "Detected\n");
1928 en_rn_msg = false;
1929 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1930 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1931 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1932 "3144 Port Down: Debug Dump\n");
1933 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1934 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1935 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1936 "3145 Port Down: Provisioning\n");
1937
1938 /* If resets are disabled then leave the HBA alone and return */
1939 if (!phba->cfg_enable_hba_reset)
1940 return;
1941
1942 /* Check port status register for function reset */
1943 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1944 en_rn_msg);
1945 if (rc == 0) {
1946 /* don't report event on forced debug dump */
1947 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1948 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1949 return;
1950 else
1951 break;
1952 }
1953 /* fall through for not able to recover */
1954 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1955 "3152 Unrecoverable error, bring the port "
1956 "offline\n");
1957 lpfc_sli4_offline_eratt(phba);
1958 break;
1959 case LPFC_SLI_INTF_IF_TYPE_1:
1960 default:
1961 break;
1962 }
1963 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1964 "3123 Report dump event to upper layer\n");
1965 /* Send an internal error event to mgmt application */
1966 lpfc_board_errevt_to_mgmt(phba);
1967
1968 event_data = FC_REG_DUMP_EVENT;
1969 shost = lpfc_shost_from_vport(vport);
1970 fc_host_post_vendor_event(shost, fc_get_event_number(),
1971 sizeof(event_data), (char *) &event_data,
1972 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1973 }
1974
1975 /**
1976 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1977 * @phba: pointer to lpfc HBA data structure.
1978 *
1979 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1980 * routine from the API jump table function pointer from the lpfc_hba struct.
1981 *
1982 * Return codes
1983 * 0 - success.
1984 * Any other value - error.
1985 **/
1986 void
1987 lpfc_handle_eratt(struct lpfc_hba *phba)
1988 {
1989 (*phba->lpfc_handle_eratt)(phba);
1990 }
1991
1992 /**
1993 * lpfc_handle_latt - The HBA link event handler
1994 * @phba: pointer to lpfc hba data structure.
1995 *
1996 * This routine is invoked from the worker thread to handle a HBA host
1997 * attention link event. SLI3 only.
1998 **/
1999 void
2000 lpfc_handle_latt(struct lpfc_hba *phba)
2001 {
2002 struct lpfc_vport *vport = phba->pport;
2003 struct lpfc_sli *psli = &phba->sli;
2004 LPFC_MBOXQ_t *pmb;
2005 volatile uint32_t control;
2006 struct lpfc_dmabuf *mp;
2007 int rc = 0;
2008
2009 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2010 if (!pmb) {
2011 rc = 1;
2012 goto lpfc_handle_latt_err_exit;
2013 }
2014
2015 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2016 if (!mp) {
2017 rc = 2;
2018 goto lpfc_handle_latt_free_pmb;
2019 }
2020
2021 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2022 if (!mp->virt) {
2023 rc = 3;
2024 goto lpfc_handle_latt_free_mp;
2025 }
2026
2027 /* Cleanup any outstanding ELS commands */
2028 lpfc_els_flush_all_cmd(phba);
2029
2030 psli->slistat.link_event++;
2031 lpfc_read_topology(phba, pmb, mp);
2032 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2033 pmb->vport = vport;
2034 /* Block ELS IOCBs until we have processed this mbox command */
2035 phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2036 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2037 if (rc == MBX_NOT_FINISHED) {
2038 rc = 4;
2039 goto lpfc_handle_latt_free_mbuf;
2040 }
2041
2042 /* Clear Link Attention in HA REG */
2043 spin_lock_irq(&phba->hbalock);
2044 writel(HA_LATT, phba->HAregaddr);
2045 readl(phba->HAregaddr); /* flush */
2046 spin_unlock_irq(&phba->hbalock);
2047
2048 return;
2049
2050 lpfc_handle_latt_free_mbuf:
2051 phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2052 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2053 lpfc_handle_latt_free_mp:
2054 kfree(mp);
2055 lpfc_handle_latt_free_pmb:
2056 mempool_free(pmb, phba->mbox_mem_pool);
2057 lpfc_handle_latt_err_exit:
2058 /* Enable Link attention interrupts */
2059 spin_lock_irq(&phba->hbalock);
2060 psli->sli_flag |= LPFC_PROCESS_LA;
2061 control = readl(phba->HCregaddr);
2062 control |= HC_LAINT_ENA;
2063 writel(control, phba->HCregaddr);
2064 readl(phba->HCregaddr); /* flush */
2065
2066 /* Clear Link Attention in HA REG */
2067 writel(HA_LATT, phba->HAregaddr);
2068 readl(phba->HAregaddr); /* flush */
2069 spin_unlock_irq(&phba->hbalock);
2070 lpfc_linkdown(phba);
2071 phba->link_state = LPFC_HBA_ERROR;
2072
2073 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2074 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2075
2076 return;
2077 }
2078
2079 /**
2080 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2081 * @phba: pointer to lpfc hba data structure.
2082 * @vpd: pointer to the vital product data.
2083 * @len: length of the vital product data in bytes.
2084 *
2085 * This routine parses the Vital Product Data (VPD). The VPD is treated as
2086 * an array of characters. In this routine, the ModelName, ProgramType, and
2087 * ModelDesc, etc. fields of the phba data structure will be populated.
2088 *
2089 * Return codes
2090 * 0 - pointer to the VPD passed in is NULL
2091 * 1 - success
2092 **/
2093 int
2094 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2095 {
2096 uint8_t lenlo, lenhi;
2097 int Length;
2098 int i, j;
2099 int finished = 0;
2100 int index = 0;
2101
2102 if (!vpd)
2103 return 0;
2104
2105 /* Vital Product */
2106 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2107 "0455 Vital Product Data: x%x x%x x%x x%x\n",
2108 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2109 (uint32_t) vpd[3]);
2110 while (!finished && (index < (len - 4))) {
2111 switch (vpd[index]) {
2112 case 0x82:
2113 case 0x91:
2114 index += 1;
2115 lenlo = vpd[index];
2116 index += 1;
2117 lenhi = vpd[index];
2118 index += 1;
2119 i = ((((unsigned short)lenhi) << 8) + lenlo);
2120 index += i;
2121 break;
2122 case 0x90:
2123 index += 1;
2124 lenlo = vpd[index];
2125 index += 1;
2126 lenhi = vpd[index];
2127 index += 1;
2128 Length = ((((unsigned short)lenhi) << 8) + lenlo);
2129 if (Length > len - index)
2130 Length = len - index;
2131 while (Length > 0) {
2132 /* Look for Serial Number */
2133 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2134 index += 2;
2135 i = vpd[index];
2136 index += 1;
2137 j = 0;
2138 Length -= (3+i);
2139 while(i--) {
2140 phba->SerialNumber[j++] = vpd[index++];
2141 if (j == 31)
2142 break;
2143 }
2144 phba->SerialNumber[j] = 0;
2145 continue;
2146 }
2147 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2148 phba->vpd_flag |= VPD_MODEL_DESC;
2149 index += 2;
2150 i = vpd[index];
2151 index += 1;
2152 j = 0;
2153 Length -= (3+i);
2154 while(i--) {
2155 phba->ModelDesc[j++] = vpd[index++];
2156 if (j == 255)
2157 break;
2158 }
2159 phba->ModelDesc[j] = 0;
2160 continue;
2161 }
2162 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2163 phba->vpd_flag |= VPD_MODEL_NAME;
2164 index += 2;
2165 i = vpd[index];
2166 index += 1;
2167 j = 0;
2168 Length -= (3+i);
2169 while(i--) {
2170 phba->ModelName[j++] = vpd[index++];
2171 if (j == 79)
2172 break;
2173 }
2174 phba->ModelName[j] = 0;
2175 continue;
2176 }
2177 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2178 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2179 index += 2;
2180 i = vpd[index];
2181 index += 1;
2182 j = 0;
2183 Length -= (3+i);
2184 while(i--) {
2185 phba->ProgramType[j++] = vpd[index++];
2186 if (j == 255)
2187 break;
2188 }
2189 phba->ProgramType[j] = 0;
2190 continue;
2191 }
2192 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2193 phba->vpd_flag |= VPD_PORT;
2194 index += 2;
2195 i = vpd[index];
2196 index += 1;
2197 j = 0;
2198 Length -= (3+i);
2199 while(i--) {
2200 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2201 (phba->sli4_hba.pport_name_sta ==
2202 LPFC_SLI4_PPNAME_GET)) {
2203 j++;
2204 index++;
2205 } else
2206 phba->Port[j++] = vpd[index++];
2207 if (j == 19)
2208 break;
2209 }
2210 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2211 (phba->sli4_hba.pport_name_sta ==
2212 LPFC_SLI4_PPNAME_NON))
2213 phba->Port[j] = 0;
2214 continue;
2215 }
2216 else {
2217 index += 2;
2218 i = vpd[index];
2219 index += 1;
2220 index += i;
2221 Length -= (3 + i);
2222 }
2223 }
2224 finished = 0;
2225 break;
2226 case 0x78:
2227 finished = 1;
2228 break;
2229 default:
2230 index ++;
2231 break;
2232 }
2233 }
2234
2235 return(1);
2236 }
2237
2238 /**
2239 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2240 * @phba: pointer to lpfc hba data structure.
2241 * @mdp: pointer to the data structure to hold the derived model name.
2242 * @descp: pointer to the data structure to hold the derived description.
2243 *
2244 * This routine retrieves HBA's description based on its registered PCI device
2245 * ID. The @descp passed into this function points to an array of 256 chars. It
2246 * shall be returned with the model name, maximum speed, and the host bus type.
2247 * The @mdp passed into this function points to an array of 80 chars. When the
2248 * function returns, the @mdp will be filled with the model name.
2249 **/
2250 static void
2251 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2252 {
2253 lpfc_vpd_t *vp;
2254 uint16_t dev_id = phba->pcidev->device;
2255 int max_speed;
2256 int GE = 0;
2257 int oneConnect = 0; /* default is not a oneConnect */
2258 struct {
2259 char *name;
2260 char *bus;
2261 char *function;
2262 } m = {"<Unknown>", "", ""};
2263
2264 if (mdp && mdp[0] != '\0'
2265 && descp && descp[0] != '\0')
2266 return;
2267
2268 if (phba->lmt & LMT_32Gb)
2269 max_speed = 32;
2270 else if (phba->lmt & LMT_16Gb)
2271 max_speed = 16;
2272 else if (phba->lmt & LMT_10Gb)
2273 max_speed = 10;
2274 else if (phba->lmt & LMT_8Gb)
2275 max_speed = 8;
2276 else if (phba->lmt & LMT_4Gb)
2277 max_speed = 4;
2278 else if (phba->lmt & LMT_2Gb)
2279 max_speed = 2;
2280 else if (phba->lmt & LMT_1Gb)
2281 max_speed = 1;
2282 else
2283 max_speed = 0;
2284
2285 vp = &phba->vpd;
2286
2287 switch (dev_id) {
2288 case PCI_DEVICE_ID_FIREFLY:
2289 m = (typeof(m)){"LP6000", "PCI",
2290 "Obsolete, Unsupported Fibre Channel Adapter"};
2291 break;
2292 case PCI_DEVICE_ID_SUPERFLY:
2293 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2294 m = (typeof(m)){"LP7000", "PCI", ""};
2295 else
2296 m = (typeof(m)){"LP7000E", "PCI", ""};
2297 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2298 break;
2299 case PCI_DEVICE_ID_DRAGONFLY:
2300 m = (typeof(m)){"LP8000", "PCI",
2301 "Obsolete, Unsupported Fibre Channel Adapter"};
2302 break;
2303 case PCI_DEVICE_ID_CENTAUR:
2304 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2305 m = (typeof(m)){"LP9002", "PCI", ""};
2306 else
2307 m = (typeof(m)){"LP9000", "PCI", ""};
2308 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2309 break;
2310 case PCI_DEVICE_ID_RFLY:
2311 m = (typeof(m)){"LP952", "PCI",
2312 "Obsolete, Unsupported Fibre Channel Adapter"};
2313 break;
2314 case PCI_DEVICE_ID_PEGASUS:
2315 m = (typeof(m)){"LP9802", "PCI-X",
2316 "Obsolete, Unsupported Fibre Channel Adapter"};
2317 break;
2318 case PCI_DEVICE_ID_THOR:
2319 m = (typeof(m)){"LP10000", "PCI-X",
2320 "Obsolete, Unsupported Fibre Channel Adapter"};
2321 break;
2322 case PCI_DEVICE_ID_VIPER:
2323 m = (typeof(m)){"LPX1000", "PCI-X",
2324 "Obsolete, Unsupported Fibre Channel Adapter"};
2325 break;
2326 case PCI_DEVICE_ID_PFLY:
2327 m = (typeof(m)){"LP982", "PCI-X",
2328 "Obsolete, Unsupported Fibre Channel Adapter"};
2329 break;
2330 case PCI_DEVICE_ID_TFLY:
2331 m = (typeof(m)){"LP1050", "PCI-X",
2332 "Obsolete, Unsupported Fibre Channel Adapter"};
2333 break;
2334 case PCI_DEVICE_ID_HELIOS:
2335 m = (typeof(m)){"LP11000", "PCI-X2",
2336 "Obsolete, Unsupported Fibre Channel Adapter"};
2337 break;
2338 case PCI_DEVICE_ID_HELIOS_SCSP:
2339 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2340 "Obsolete, Unsupported Fibre Channel Adapter"};
2341 break;
2342 case PCI_DEVICE_ID_HELIOS_DCSP:
2343 m = (typeof(m)){"LP11002-SP", "PCI-X2",
2344 "Obsolete, Unsupported Fibre Channel Adapter"};
2345 break;
2346 case PCI_DEVICE_ID_NEPTUNE:
2347 m = (typeof(m)){"LPe1000", "PCIe",
2348 "Obsolete, Unsupported Fibre Channel Adapter"};
2349 break;
2350 case PCI_DEVICE_ID_NEPTUNE_SCSP:
2351 m = (typeof(m)){"LPe1000-SP", "PCIe",
2352 "Obsolete, Unsupported Fibre Channel Adapter"};
2353 break;
2354 case PCI_DEVICE_ID_NEPTUNE_DCSP:
2355 m = (typeof(m)){"LPe1002-SP", "PCIe",
2356 "Obsolete, Unsupported Fibre Channel Adapter"};
2357 break;
2358 case PCI_DEVICE_ID_BMID:
2359 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2360 break;
2361 case PCI_DEVICE_ID_BSMB:
2362 m = (typeof(m)){"LP111", "PCI-X2",
2363 "Obsolete, Unsupported Fibre Channel Adapter"};
2364 break;
2365 case PCI_DEVICE_ID_ZEPHYR:
2366 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2367 break;
2368 case PCI_DEVICE_ID_ZEPHYR_SCSP:
2369 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2370 break;
2371 case PCI_DEVICE_ID_ZEPHYR_DCSP:
2372 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2373 GE = 1;
2374 break;
2375 case PCI_DEVICE_ID_ZMID:
2376 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2377 break;
2378 case PCI_DEVICE_ID_ZSMB:
2379 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2380 break;
2381 case PCI_DEVICE_ID_LP101:
2382 m = (typeof(m)){"LP101", "PCI-X",
2383 "Obsolete, Unsupported Fibre Channel Adapter"};
2384 break;
2385 case PCI_DEVICE_ID_LP10000S:
2386 m = (typeof(m)){"LP10000-S", "PCI",
2387 "Obsolete, Unsupported Fibre Channel Adapter"};
2388 break;
2389 case PCI_DEVICE_ID_LP11000S:
2390 m = (typeof(m)){"LP11000-S", "PCI-X2",
2391 "Obsolete, Unsupported Fibre Channel Adapter"};
2392 break;
2393 case PCI_DEVICE_ID_LPE11000S:
2394 m = (typeof(m)){"LPe11000-S", "PCIe",
2395 "Obsolete, Unsupported Fibre Channel Adapter"};
2396 break;
2397 case PCI_DEVICE_ID_SAT:
2398 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2399 break;
2400 case PCI_DEVICE_ID_SAT_MID:
2401 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2402 break;
2403 case PCI_DEVICE_ID_SAT_SMB:
2404 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2405 break;
2406 case PCI_DEVICE_ID_SAT_DCSP:
2407 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2408 break;
2409 case PCI_DEVICE_ID_SAT_SCSP:
2410 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2411 break;
2412 case PCI_DEVICE_ID_SAT_S:
2413 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2414 break;
2415 case PCI_DEVICE_ID_HORNET:
2416 m = (typeof(m)){"LP21000", "PCIe",
2417 "Obsolete, Unsupported FCoE Adapter"};
2418 GE = 1;
2419 break;
2420 case PCI_DEVICE_ID_PROTEUS_VF:
2421 m = (typeof(m)){"LPev12000", "PCIe IOV",
2422 "Obsolete, Unsupported Fibre Channel Adapter"};
2423 break;
2424 case PCI_DEVICE_ID_PROTEUS_PF:
2425 m = (typeof(m)){"LPev12000", "PCIe IOV",
2426 "Obsolete, Unsupported Fibre Channel Adapter"};
2427 break;
2428 case PCI_DEVICE_ID_PROTEUS_S:
2429 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2430 "Obsolete, Unsupported Fibre Channel Adapter"};
2431 break;
2432 case PCI_DEVICE_ID_TIGERSHARK:
2433 oneConnect = 1;
2434 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2435 break;
2436 case PCI_DEVICE_ID_TOMCAT:
2437 oneConnect = 1;
2438 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2439 break;
2440 case PCI_DEVICE_ID_FALCON:
2441 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2442 "EmulexSecure Fibre"};
2443 break;
2444 case PCI_DEVICE_ID_BALIUS:
2445 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2446 "Obsolete, Unsupported Fibre Channel Adapter"};
2447 break;
2448 case PCI_DEVICE_ID_LANCER_FC:
2449 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2450 break;
2451 case PCI_DEVICE_ID_LANCER_FC_VF:
2452 m = (typeof(m)){"LPe16000", "PCIe",
2453 "Obsolete, Unsupported Fibre Channel Adapter"};
2454 break;
2455 case PCI_DEVICE_ID_LANCER_FCOE:
2456 oneConnect = 1;
2457 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2458 break;
2459 case PCI_DEVICE_ID_LANCER_FCOE_VF:
2460 oneConnect = 1;
2461 m = (typeof(m)){"OCe15100", "PCIe",
2462 "Obsolete, Unsupported FCoE"};
2463 break;
2464 case PCI_DEVICE_ID_LANCER_G6_FC:
2465 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2466 break;
2467 case PCI_DEVICE_ID_SKYHAWK:
2468 case PCI_DEVICE_ID_SKYHAWK_VF:
2469 oneConnect = 1;
2470 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2471 break;
2472 default:
2473 m = (typeof(m)){"Unknown", "", ""};
2474 break;
2475 }
2476
2477 if (mdp && mdp[0] == '\0')
2478 snprintf(mdp, 79,"%s", m.name);
2479 /*
2480 * oneConnect hba requires special processing, they are all initiators
2481 * and we put the port number on the end
2482 */
2483 if (descp && descp[0] == '\0') {
2484 if (oneConnect)
2485 snprintf(descp, 255,
2486 "Emulex OneConnect %s, %s Initiator %s",
2487 m.name, m.function,
2488 phba->Port);
2489 else if (max_speed == 0)
2490 snprintf(descp, 255,
2491 "Emulex %s %s %s",
2492 m.name, m.bus, m.function);
2493 else
2494 snprintf(descp, 255,
2495 "Emulex %s %d%s %s %s",
2496 m.name, max_speed, (GE) ? "GE" : "Gb",
2497 m.bus, m.function);
2498 }
2499 }
2500
2501 /**
2502 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2503 * @phba: pointer to lpfc hba data structure.
2504 * @pring: pointer to a IOCB ring.
2505 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2506 *
2507 * This routine posts a given number of IOCBs with the associated DMA buffer
2508 * descriptors specified by the cnt argument to the given IOCB ring.
2509 *
2510 * Return codes
2511 * The number of IOCBs NOT able to be posted to the IOCB ring.
2512 **/
2513 int
2514 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2515 {
2516 IOCB_t *icmd;
2517 struct lpfc_iocbq *iocb;
2518 struct lpfc_dmabuf *mp1, *mp2;
2519
2520 cnt += pring->missbufcnt;
2521
2522 /* While there are buffers to post */
2523 while (cnt > 0) {
2524 /* Allocate buffer for command iocb */
2525 iocb = lpfc_sli_get_iocbq(phba);
2526 if (iocb == NULL) {
2527 pring->missbufcnt = cnt;
2528 return cnt;
2529 }
2530 icmd = &iocb->iocb;
2531
2532 /* 2 buffers can be posted per command */
2533 /* Allocate buffer to post */
2534 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2535 if (mp1)
2536 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2537 if (!mp1 || !mp1->virt) {
2538 kfree(mp1);
2539 lpfc_sli_release_iocbq(phba, iocb);
2540 pring->missbufcnt = cnt;
2541 return cnt;
2542 }
2543
2544 INIT_LIST_HEAD(&mp1->list);
2545 /* Allocate buffer to post */
2546 if (cnt > 1) {
2547 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2548 if (mp2)
2549 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2550 &mp2->phys);
2551 if (!mp2 || !mp2->virt) {
2552 kfree(mp2);
2553 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2554 kfree(mp1);
2555 lpfc_sli_release_iocbq(phba, iocb);
2556 pring->missbufcnt = cnt;
2557 return cnt;
2558 }
2559
2560 INIT_LIST_HEAD(&mp2->list);
2561 } else {
2562 mp2 = NULL;
2563 }
2564
2565 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2566 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2567 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2568 icmd->ulpBdeCount = 1;
2569 cnt--;
2570 if (mp2) {
2571 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2572 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2573 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2574 cnt--;
2575 icmd->ulpBdeCount = 2;
2576 }
2577
2578 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2579 icmd->ulpLe = 1;
2580
2581 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2582 IOCB_ERROR) {
2583 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2584 kfree(mp1);
2585 cnt++;
2586 if (mp2) {
2587 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2588 kfree(mp2);
2589 cnt++;
2590 }
2591 lpfc_sli_release_iocbq(phba, iocb);
2592 pring->missbufcnt = cnt;
2593 return cnt;
2594 }
2595 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2596 if (mp2)
2597 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2598 }
2599 pring->missbufcnt = 0;
2600 return 0;
2601 }
2602
2603 /**
2604 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2605 * @phba: pointer to lpfc hba data structure.
2606 *
2607 * This routine posts initial receive IOCB buffers to the ELS ring. The
2608 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2609 * set to 64 IOCBs. SLI3 only.
2610 *
2611 * Return codes
2612 * 0 - success (currently always success)
2613 **/
2614 static int
2615 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2616 {
2617 struct lpfc_sli *psli = &phba->sli;
2618
2619 /* Ring 0, ELS / CT buffers */
2620 lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2621 /* Ring 2 - FCP no buffers needed */
2622
2623 return 0;
2624 }
2625
2626 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2627
2628 /**
2629 * lpfc_sha_init - Set up initial array of hash table entries
2630 * @HashResultPointer: pointer to an array as hash table.
2631 *
2632 * This routine sets up the initial values to the array of hash table entries
2633 * for the LC HBAs.
2634 **/
2635 static void
2636 lpfc_sha_init(uint32_t * HashResultPointer)
2637 {
2638 HashResultPointer[0] = 0x67452301;
2639 HashResultPointer[1] = 0xEFCDAB89;
2640 HashResultPointer[2] = 0x98BADCFE;
2641 HashResultPointer[3] = 0x10325476;
2642 HashResultPointer[4] = 0xC3D2E1F0;
2643 }
2644
2645 /**
2646 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2647 * @HashResultPointer: pointer to an initial/result hash table.
2648 * @HashWorkingPointer: pointer to an working hash table.
2649 *
2650 * This routine iterates an initial hash table pointed by @HashResultPointer
2651 * with the values from the working hash table pointeed by @HashWorkingPointer.
2652 * The results are putting back to the initial hash table, returned through
2653 * the @HashResultPointer as the result hash table.
2654 **/
2655 static void
2656 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2657 {
2658 int t;
2659 uint32_t TEMP;
2660 uint32_t A, B, C, D, E;
2661 t = 16;
2662 do {
2663 HashWorkingPointer[t] =
2664 S(1,
2665 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2666 8] ^
2667 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2668 } while (++t <= 79);
2669 t = 0;
2670 A = HashResultPointer[0];
2671 B = HashResultPointer[1];
2672 C = HashResultPointer[2];
2673 D = HashResultPointer[3];
2674 E = HashResultPointer[4];
2675
2676 do {
2677 if (t < 20) {
2678 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2679 } else if (t < 40) {
2680 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2681 } else if (t < 60) {
2682 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2683 } else {
2684 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2685 }
2686 TEMP += S(5, A) + E + HashWorkingPointer[t];
2687 E = D;
2688 D = C;
2689 C = S(30, B);
2690 B = A;
2691 A = TEMP;
2692 } while (++t <= 79);
2693
2694 HashResultPointer[0] += A;
2695 HashResultPointer[1] += B;
2696 HashResultPointer[2] += C;
2697 HashResultPointer[3] += D;
2698 HashResultPointer[4] += E;
2699
2700 }
2701
2702 /**
2703 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2704 * @RandomChallenge: pointer to the entry of host challenge random number array.
2705 * @HashWorking: pointer to the entry of the working hash array.
2706 *
2707 * This routine calculates the working hash array referred by @HashWorking
2708 * from the challenge random numbers associated with the host, referred by
2709 * @RandomChallenge. The result is put into the entry of the working hash
2710 * array and returned by reference through @HashWorking.
2711 **/
2712 static void
2713 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2714 {
2715 *HashWorking = (*RandomChallenge ^ *HashWorking);
2716 }
2717
2718 /**
2719 * lpfc_hba_init - Perform special handling for LC HBA initialization
2720 * @phba: pointer to lpfc hba data structure.
2721 * @hbainit: pointer to an array of unsigned 32-bit integers.
2722 *
2723 * This routine performs the special handling for LC HBA initialization.
2724 **/
2725 void
2726 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2727 {
2728 int t;
2729 uint32_t *HashWorking;
2730 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2731
2732 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2733 if (!HashWorking)
2734 return;
2735
2736 HashWorking[0] = HashWorking[78] = *pwwnn++;
2737 HashWorking[1] = HashWorking[79] = *pwwnn;
2738
2739 for (t = 0; t < 7; t++)
2740 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2741
2742 lpfc_sha_init(hbainit);
2743 lpfc_sha_iterate(hbainit, HashWorking);
2744 kfree(HashWorking);
2745 }
2746
2747 /**
2748 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2749 * @vport: pointer to a virtual N_Port data structure.
2750 *
2751 * This routine performs the necessary cleanups before deleting the @vport.
2752 * It invokes the discovery state machine to perform necessary state
2753 * transitions and to release the ndlps associated with the @vport. Note,
2754 * the physical port is treated as @vport 0.
2755 **/
2756 void
2757 lpfc_cleanup(struct lpfc_vport *vport)
2758 {
2759 struct lpfc_hba *phba = vport->phba;
2760 struct lpfc_nodelist *ndlp, *next_ndlp;
2761 int i = 0;
2762
2763 if (phba->link_state > LPFC_LINK_DOWN)
2764 lpfc_port_link_failure(vport);
2765
2766 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2767 if (!NLP_CHK_NODE_ACT(ndlp)) {
2768 ndlp = lpfc_enable_node(vport, ndlp,
2769 NLP_STE_UNUSED_NODE);
2770 if (!ndlp)
2771 continue;
2772 spin_lock_irq(&phba->ndlp_lock);
2773 NLP_SET_FREE_REQ(ndlp);
2774 spin_unlock_irq(&phba->ndlp_lock);
2775 /* Trigger the release of the ndlp memory */
2776 lpfc_nlp_put(ndlp);
2777 continue;
2778 }
2779 spin_lock_irq(&phba->ndlp_lock);
2780 if (NLP_CHK_FREE_REQ(ndlp)) {
2781 /* The ndlp should not be in memory free mode already */
2782 spin_unlock_irq(&phba->ndlp_lock);
2783 continue;
2784 } else
2785 /* Indicate request for freeing ndlp memory */
2786 NLP_SET_FREE_REQ(ndlp);
2787 spin_unlock_irq(&phba->ndlp_lock);
2788
2789 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2790 ndlp->nlp_DID == Fabric_DID) {
2791 /* Just free up ndlp with Fabric_DID for vports */
2792 lpfc_nlp_put(ndlp);
2793 continue;
2794 }
2795
2796 /* take care of nodes in unused state before the state
2797 * machine taking action.
2798 */
2799 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2800 lpfc_nlp_put(ndlp);
2801 continue;
2802 }
2803
2804 if (ndlp->nlp_type & NLP_FABRIC)
2805 lpfc_disc_state_machine(vport, ndlp, NULL,
2806 NLP_EVT_DEVICE_RECOVERY);
2807
2808 lpfc_disc_state_machine(vport, ndlp, NULL,
2809 NLP_EVT_DEVICE_RM);
2810 }
2811
2812 /* At this point, ALL ndlp's should be gone
2813 * because of the previous NLP_EVT_DEVICE_RM.
2814 * Lets wait for this to happen, if needed.
2815 */
2816 while (!list_empty(&vport->fc_nodes)) {
2817 if (i++ > 3000) {
2818 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2819 "0233 Nodelist not empty\n");
2820 list_for_each_entry_safe(ndlp, next_ndlp,
2821 &vport->fc_nodes, nlp_listp) {
2822 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2823 LOG_NODE,
2824 "0282 did:x%x ndlp:x%p "
2825 "usgmap:x%x refcnt:%d\n",
2826 ndlp->nlp_DID, (void *)ndlp,
2827 ndlp->nlp_usg_map,
2828 kref_read(&ndlp->kref));
2829 }
2830 break;
2831 }
2832
2833 /* Wait for any activity on ndlps to settle */
2834 msleep(10);
2835 }
2836 lpfc_cleanup_vports_rrqs(vport, NULL);
2837 }
2838
2839 /**
2840 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2841 * @vport: pointer to a virtual N_Port data structure.
2842 *
2843 * This routine stops all the timers associated with a @vport. This function
2844 * is invoked before disabling or deleting a @vport. Note that the physical
2845 * port is treated as @vport 0.
2846 **/
2847 void
2848 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2849 {
2850 del_timer_sync(&vport->els_tmofunc);
2851 del_timer_sync(&vport->delayed_disc_tmo);
2852 lpfc_can_disctmo(vport);
2853 return;
2854 }
2855
2856 /**
2857 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2858 * @phba: pointer to lpfc hba data structure.
2859 *
2860 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2861 * caller of this routine should already hold the host lock.
2862 **/
2863 void
2864 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2865 {
2866 /* Clear pending FCF rediscovery wait flag */
2867 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2868
2869 /* Now, try to stop the timer */
2870 del_timer(&phba->fcf.redisc_wait);
2871 }
2872
2873 /**
2874 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2875 * @phba: pointer to lpfc hba data structure.
2876 *
2877 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2878 * checks whether the FCF rediscovery wait timer is pending with the host
2879 * lock held before proceeding with disabling the timer and clearing the
2880 * wait timer pendig flag.
2881 **/
2882 void
2883 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2884 {
2885 spin_lock_irq(&phba->hbalock);
2886 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2887 /* FCF rediscovery timer already fired or stopped */
2888 spin_unlock_irq(&phba->hbalock);
2889 return;
2890 }
2891 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2892 /* Clear failover in progress flags */
2893 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2894 spin_unlock_irq(&phba->hbalock);
2895 }
2896
2897 /**
2898 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2899 * @phba: pointer to lpfc hba data structure.
2900 *
2901 * This routine stops all the timers associated with a HBA. This function is
2902 * invoked before either putting a HBA offline or unloading the driver.
2903 **/
2904 void
2905 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2906 {
2907 lpfc_stop_vport_timers(phba->pport);
2908 del_timer_sync(&phba->sli.mbox_tmo);
2909 del_timer_sync(&phba->fabric_block_timer);
2910 del_timer_sync(&phba->eratt_poll);
2911 del_timer_sync(&phba->hb_tmofunc);
2912 if (phba->sli_rev == LPFC_SLI_REV4) {
2913 del_timer_sync(&phba->rrq_tmr);
2914 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2915 }
2916 phba->hb_outstanding = 0;
2917
2918 switch (phba->pci_dev_grp) {
2919 case LPFC_PCI_DEV_LP:
2920 /* Stop any LightPulse device specific driver timers */
2921 del_timer_sync(&phba->fcp_poll_timer);
2922 break;
2923 case LPFC_PCI_DEV_OC:
2924 /* Stop any OneConnect device sepcific driver timers */
2925 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2926 break;
2927 default:
2928 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2929 "0297 Invalid device group (x%x)\n",
2930 phba->pci_dev_grp);
2931 break;
2932 }
2933 return;
2934 }
2935
2936 /**
2937 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2938 * @phba: pointer to lpfc hba data structure.
2939 *
2940 * This routine marks a HBA's management interface as blocked. Once the HBA's
2941 * management interface is marked as blocked, all the user space access to
2942 * the HBA, whether they are from sysfs interface or libdfc interface will
2943 * all be blocked. The HBA is set to block the management interface when the
2944 * driver prepares the HBA interface for online or offline.
2945 **/
2946 static void
2947 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2948 {
2949 unsigned long iflag;
2950 uint8_t actcmd = MBX_HEARTBEAT;
2951 unsigned long timeout;
2952
2953 spin_lock_irqsave(&phba->hbalock, iflag);
2954 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2955 spin_unlock_irqrestore(&phba->hbalock, iflag);
2956 if (mbx_action == LPFC_MBX_NO_WAIT)
2957 return;
2958 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2959 spin_lock_irqsave(&phba->hbalock, iflag);
2960 if (phba->sli.mbox_active) {
2961 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2962 /* Determine how long we might wait for the active mailbox
2963 * command to be gracefully completed by firmware.
2964 */
2965 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2966 phba->sli.mbox_active) * 1000) + jiffies;
2967 }
2968 spin_unlock_irqrestore(&phba->hbalock, iflag);
2969
2970 /* Wait for the outstnading mailbox command to complete */
2971 while (phba->sli.mbox_active) {
2972 /* Check active mailbox complete status every 2ms */
2973 msleep(2);
2974 if (time_after(jiffies, timeout)) {
2975 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2976 "2813 Mgmt IO is Blocked %x "
2977 "- mbox cmd %x still active\n",
2978 phba->sli.sli_flag, actcmd);
2979 break;
2980 }
2981 }
2982 }
2983
2984 /**
2985 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2986 * @phba: pointer to lpfc hba data structure.
2987 *
2988 * Allocate RPIs for all active remote nodes. This is needed whenever
2989 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2990 * is to fixup the temporary rpi assignments.
2991 **/
2992 void
2993 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2994 {
2995 struct lpfc_nodelist *ndlp, *next_ndlp;
2996 struct lpfc_vport **vports;
2997 int i, rpi;
2998 unsigned long flags;
2999
3000 if (phba->sli_rev != LPFC_SLI_REV4)
3001 return;
3002
3003 vports = lpfc_create_vport_work_array(phba);
3004 if (vports == NULL)
3005 return;
3006
3007 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3008 if (vports[i]->load_flag & FC_UNLOADING)
3009 continue;
3010
3011 list_for_each_entry_safe(ndlp, next_ndlp,
3012 &vports[i]->fc_nodes,
3013 nlp_listp) {
3014 if (!NLP_CHK_NODE_ACT(ndlp))
3015 continue;
3016 rpi = lpfc_sli4_alloc_rpi(phba);
3017 if (rpi == LPFC_RPI_ALLOC_ERROR) {
3018 spin_lock_irqsave(&phba->ndlp_lock, flags);
3019 NLP_CLR_NODE_ACT(ndlp);
3020 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3021 continue;
3022 }
3023 ndlp->nlp_rpi = rpi;
3024 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3025 "0009 rpi:%x DID:%x "
3026 "flg:%x map:%x %p\n", ndlp->nlp_rpi,
3027 ndlp->nlp_DID, ndlp->nlp_flag,
3028 ndlp->nlp_usg_map, ndlp);
3029 }
3030 }
3031 lpfc_destroy_vport_work_array(phba, vports);
3032 }
3033
3034 /**
3035 * lpfc_online - Initialize and bring a HBA online
3036 * @phba: pointer to lpfc hba data structure.
3037 *
3038 * This routine initializes the HBA and brings a HBA online. During this
3039 * process, the management interface is blocked to prevent user space access
3040 * to the HBA interfering with the driver initialization.
3041 *
3042 * Return codes
3043 * 0 - successful
3044 * 1 - failed
3045 **/
3046 int
3047 lpfc_online(struct lpfc_hba *phba)
3048 {
3049 struct lpfc_vport *vport;
3050 struct lpfc_vport **vports;
3051 int i, error = 0;
3052 bool vpis_cleared = false;
3053
3054 if (!phba)
3055 return 0;
3056 vport = phba->pport;
3057
3058 if (!(vport->fc_flag & FC_OFFLINE_MODE))
3059 return 0;
3060
3061 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3062 "0458 Bring Adapter online\n");
3063
3064 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3065
3066 if (phba->sli_rev == LPFC_SLI_REV4) {
3067 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3068 lpfc_unblock_mgmt_io(phba);
3069 return 1;
3070 }
3071 spin_lock_irq(&phba->hbalock);
3072 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3073 vpis_cleared = true;
3074 spin_unlock_irq(&phba->hbalock);
3075
3076 /* Reestablish the local initiator port.
3077 * The offline process destroyed the previous lport.
3078 */
3079 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3080 !phba->nvmet_support) {
3081 error = lpfc_nvme_create_localport(phba->pport);
3082 if (error)
3083 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3084 "6132 NVME restore reg failed "
3085 "on nvmei error x%x\n", error);
3086 }
3087 } else {
3088 lpfc_sli_queue_init(phba);
3089 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3090 lpfc_unblock_mgmt_io(phba);
3091 return 1;
3092 }
3093 }
3094
3095 vports = lpfc_create_vport_work_array(phba);
3096 if (vports != NULL) {
3097 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3098 struct Scsi_Host *shost;
3099 shost = lpfc_shost_from_vport(vports[i]);
3100 spin_lock_irq(shost->host_lock);
3101 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3102 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3103 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3104 if (phba->sli_rev == LPFC_SLI_REV4) {
3105 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3106 if ((vpis_cleared) &&
3107 (vports[i]->port_type !=
3108 LPFC_PHYSICAL_PORT))
3109 vports[i]->vpi = 0;
3110 }
3111 spin_unlock_irq(shost->host_lock);
3112 }
3113 }
3114 lpfc_destroy_vport_work_array(phba, vports);
3115
3116 lpfc_unblock_mgmt_io(phba);
3117 return 0;
3118 }
3119
3120 /**
3121 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3122 * @phba: pointer to lpfc hba data structure.
3123 *
3124 * This routine marks a HBA's management interface as not blocked. Once the
3125 * HBA's management interface is marked as not blocked, all the user space
3126 * access to the HBA, whether they are from sysfs interface or libdfc
3127 * interface will be allowed. The HBA is set to block the management interface
3128 * when the driver prepares the HBA interface for online or offline and then
3129 * set to unblock the management interface afterwards.
3130 **/
3131 void
3132 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3133 {
3134 unsigned long iflag;
3135
3136 spin_lock_irqsave(&phba->hbalock, iflag);
3137 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3138 spin_unlock_irqrestore(&phba->hbalock, iflag);
3139 }
3140
3141 /**
3142 * lpfc_offline_prep - Prepare a HBA to be brought offline
3143 * @phba: pointer to lpfc hba data structure.
3144 *
3145 * This routine is invoked to prepare a HBA to be brought offline. It performs
3146 * unregistration login to all the nodes on all vports and flushes the mailbox
3147 * queue to make it ready to be brought offline.
3148 **/
3149 void
3150 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3151 {
3152 struct lpfc_vport *vport = phba->pport;
3153 struct lpfc_nodelist *ndlp, *next_ndlp;
3154 struct lpfc_vport **vports;
3155 struct Scsi_Host *shost;
3156 int i;
3157
3158 if (vport->fc_flag & FC_OFFLINE_MODE)
3159 return;
3160
3161 lpfc_block_mgmt_io(phba, mbx_action);
3162
3163 lpfc_linkdown(phba);
3164
3165 /* Issue an unreg_login to all nodes on all vports */
3166 vports = lpfc_create_vport_work_array(phba);
3167 if (vports != NULL) {
3168 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3169 if (vports[i]->load_flag & FC_UNLOADING)
3170 continue;
3171 shost = lpfc_shost_from_vport(vports[i]);
3172 spin_lock_irq(shost->host_lock);
3173 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3174 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3175 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3176 spin_unlock_irq(shost->host_lock);
3177
3178 shost = lpfc_shost_from_vport(vports[i]);
3179 list_for_each_entry_safe(ndlp, next_ndlp,
3180 &vports[i]->fc_nodes,
3181 nlp_listp) {
3182 if (!NLP_CHK_NODE_ACT(ndlp))
3183 continue;
3184 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3185 continue;
3186 if (ndlp->nlp_type & NLP_FABRIC) {
3187 lpfc_disc_state_machine(vports[i], ndlp,
3188 NULL, NLP_EVT_DEVICE_RECOVERY);
3189 lpfc_disc_state_machine(vports[i], ndlp,
3190 NULL, NLP_EVT_DEVICE_RM);
3191 }
3192 spin_lock_irq(shost->host_lock);
3193 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3194 spin_unlock_irq(shost->host_lock);
3195 /*
3196 * Whenever an SLI4 port goes offline, free the
3197 * RPI. Get a new RPI when the adapter port
3198 * comes back online.
3199 */
3200 if (phba->sli_rev == LPFC_SLI_REV4) {
3201 lpfc_printf_vlog(ndlp->vport,
3202 KERN_INFO, LOG_NODE,
3203 "0011 lpfc_offline: "
3204 "ndlp:x%p did %x "
3205 "usgmap:x%x rpi:%x\n",
3206 ndlp, ndlp->nlp_DID,
3207 ndlp->nlp_usg_map,
3208 ndlp->nlp_rpi);
3209
3210 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3211 }
3212 lpfc_unreg_rpi(vports[i], ndlp);
3213 }
3214 }
3215 }
3216 lpfc_destroy_vport_work_array(phba, vports);
3217
3218 lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3219
3220 if (phba->wq)
3221 flush_workqueue(phba->wq);
3222 }
3223
3224 /**
3225 * lpfc_offline - Bring a HBA offline
3226 * @phba: pointer to lpfc hba data structure.
3227 *
3228 * This routine actually brings a HBA offline. It stops all the timers
3229 * associated with the HBA, brings down the SLI layer, and eventually
3230 * marks the HBA as in offline state for the upper layer protocol.
3231 **/
3232 void
3233 lpfc_offline(struct lpfc_hba *phba)
3234 {
3235 struct Scsi_Host *shost;
3236 struct lpfc_vport **vports;
3237 int i;
3238
3239 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3240 return;
3241
3242 /* stop port and all timers associated with this hba */
3243 lpfc_stop_port(phba);
3244
3245 /* Tear down the local and target port registrations. The
3246 * nvme transports need to cleanup.
3247 */
3248 lpfc_nvmet_destroy_targetport(phba);
3249 lpfc_nvme_destroy_localport(phba->pport);
3250
3251 vports = lpfc_create_vport_work_array(phba);
3252 if (vports != NULL)
3253 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3254 lpfc_stop_vport_timers(vports[i]);
3255 lpfc_destroy_vport_work_array(phba, vports);
3256 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3257 "0460 Bring Adapter offline\n");
3258 /* Bring down the SLI Layer and cleanup. The HBA is offline
3259 now. */
3260 lpfc_sli_hba_down(phba);
3261 spin_lock_irq(&phba->hbalock);
3262 phba->work_ha = 0;
3263 spin_unlock_irq(&phba->hbalock);
3264 vports = lpfc_create_vport_work_array(phba);
3265 if (vports != NULL)
3266 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3267 shost = lpfc_shost_from_vport(vports[i]);
3268 spin_lock_irq(shost->host_lock);
3269 vports[i]->work_port_events = 0;
3270 vports[i]->fc_flag |= FC_OFFLINE_MODE;
3271 spin_unlock_irq(shost->host_lock);
3272 }
3273 lpfc_destroy_vport_work_array(phba, vports);
3274 }
3275
3276 /**
3277 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3278 * @phba: pointer to lpfc hba data structure.
3279 *
3280 * This routine is to free all the SCSI buffers and IOCBs from the driver
3281 * list back to kernel. It is called from lpfc_pci_remove_one to free
3282 * the internal resources before the device is removed from the system.
3283 **/
3284 static void
3285 lpfc_scsi_free(struct lpfc_hba *phba)
3286 {
3287 struct lpfc_scsi_buf *sb, *sb_next;
3288
3289 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3290 return;
3291
3292 spin_lock_irq(&phba->hbalock);
3293
3294 /* Release all the lpfc_scsi_bufs maintained by this host. */
3295
3296 spin_lock(&phba->scsi_buf_list_put_lock);
3297 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3298 list) {
3299 list_del(&sb->list);
3300 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3301 sb->dma_handle);
3302 kfree(sb);
3303 phba->total_scsi_bufs--;
3304 }
3305 spin_unlock(&phba->scsi_buf_list_put_lock);
3306
3307 spin_lock(&phba->scsi_buf_list_get_lock);
3308 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3309 list) {
3310 list_del(&sb->list);
3311 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3312 sb->dma_handle);
3313 kfree(sb);
3314 phba->total_scsi_bufs--;
3315 }
3316 spin_unlock(&phba->scsi_buf_list_get_lock);
3317 spin_unlock_irq(&phba->hbalock);
3318 }
3319 /**
3320 * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists
3321 * @phba: pointer to lpfc hba data structure.
3322 *
3323 * This routine is to free all the NVME buffers and IOCBs from the driver
3324 * list back to kernel. It is called from lpfc_pci_remove_one to free
3325 * the internal resources before the device is removed from the system.
3326 **/
3327 static void
3328 lpfc_nvme_free(struct lpfc_hba *phba)
3329 {
3330 struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next;
3331
3332 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3333 return;
3334
3335 spin_lock_irq(&phba->hbalock);
3336
3337 /* Release all the lpfc_nvme_bufs maintained by this host. */
3338 spin_lock(&phba->nvme_buf_list_put_lock);
3339 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3340 &phba->lpfc_nvme_buf_list_put, list) {
3341 list_del(&lpfc_ncmd->list);
3342 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3343 lpfc_ncmd->dma_handle);
3344 kfree(lpfc_ncmd);
3345 phba->total_nvme_bufs--;
3346 }
3347 spin_unlock(&phba->nvme_buf_list_put_lock);
3348
3349 spin_lock(&phba->nvme_buf_list_get_lock);
3350 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3351 &phba->lpfc_nvme_buf_list_get, list) {
3352 list_del(&lpfc_ncmd->list);
3353 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3354 lpfc_ncmd->dma_handle);
3355 kfree(lpfc_ncmd);
3356 phba->total_nvme_bufs--;
3357 }
3358 spin_unlock(&phba->nvme_buf_list_get_lock);
3359 spin_unlock_irq(&phba->hbalock);
3360 }
3361 /**
3362 * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3363 * @phba: pointer to lpfc hba data structure.
3364 *
3365 * This routine first calculates the sizes of the current els and allocated
3366 * scsi sgl lists, and then goes through all sgls to updates the physical
3367 * XRIs assigned due to port function reset. During port initialization, the
3368 * current els and allocated scsi sgl lists are 0s.
3369 *
3370 * Return codes
3371 * 0 - successful (for now, it always returns 0)
3372 **/
3373 int
3374 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3375 {
3376 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3377 uint16_t i, lxri, xri_cnt, els_xri_cnt;
3378 LIST_HEAD(els_sgl_list);
3379 int rc;
3380
3381 /*
3382 * update on pci function's els xri-sgl list
3383 */
3384 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3385
3386 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3387 /* els xri-sgl expanded */
3388 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3389 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3390 "3157 ELS xri-sgl count increased from "
3391 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3392 els_xri_cnt);
3393 /* allocate the additional els sgls */
3394 for (i = 0; i < xri_cnt; i++) {
3395 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3396 GFP_KERNEL);
3397 if (sglq_entry == NULL) {
3398 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3399 "2562 Failure to allocate an "
3400 "ELS sgl entry:%d\n", i);
3401 rc = -ENOMEM;
3402 goto out_free_mem;
3403 }
3404 sglq_entry->buff_type = GEN_BUFF_TYPE;
3405 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3406 &sglq_entry->phys);
3407 if (sglq_entry->virt == NULL) {
3408 kfree(sglq_entry);
3409 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3410 "2563 Failure to allocate an "
3411 "ELS mbuf:%d\n", i);
3412 rc = -ENOMEM;
3413 goto out_free_mem;
3414 }
3415 sglq_entry->sgl = sglq_entry->virt;
3416 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3417 sglq_entry->state = SGL_FREED;
3418 list_add_tail(&sglq_entry->list, &els_sgl_list);
3419 }
3420 spin_lock_irq(&phba->hbalock);
3421 spin_lock(&phba->sli4_hba.sgl_list_lock);
3422 list_splice_init(&els_sgl_list,
3423 &phba->sli4_hba.lpfc_els_sgl_list);
3424 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3425 spin_unlock_irq(&phba->hbalock);
3426 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3427 /* els xri-sgl shrinked */
3428 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3429 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3430 "3158 ELS xri-sgl count decreased from "
3431 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3432 els_xri_cnt);
3433 spin_lock_irq(&phba->hbalock);
3434 spin_lock(&phba->sli4_hba.sgl_list_lock);
3435 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3436 &els_sgl_list);
3437 /* release extra els sgls from list */
3438 for (i = 0; i < xri_cnt; i++) {
3439 list_remove_head(&els_sgl_list,
3440 sglq_entry, struct lpfc_sglq, list);
3441 if (sglq_entry) {
3442 __lpfc_mbuf_free(phba, sglq_entry->virt,
3443 sglq_entry->phys);
3444 kfree(sglq_entry);
3445 }
3446 }
3447 list_splice_init(&els_sgl_list,
3448 &phba->sli4_hba.lpfc_els_sgl_list);
3449 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3450 spin_unlock_irq(&phba->hbalock);
3451 } else
3452 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3453 "3163 ELS xri-sgl count unchanged: %d\n",
3454 els_xri_cnt);
3455 phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3456
3457 /* update xris to els sgls on the list */
3458 sglq_entry = NULL;
3459 sglq_entry_next = NULL;
3460 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3461 &phba->sli4_hba.lpfc_els_sgl_list, list) {
3462 lxri = lpfc_sli4_next_xritag(phba);
3463 if (lxri == NO_XRI) {
3464 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3465 "2400 Failed to allocate xri for "
3466 "ELS sgl\n");
3467 rc = -ENOMEM;
3468 goto out_free_mem;
3469 }
3470 sglq_entry->sli4_lxritag = lxri;
3471 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3472 }
3473 return 0;
3474
3475 out_free_mem:
3476 lpfc_free_els_sgl_list(phba);
3477 return rc;
3478 }
3479
3480 /**
3481 * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3482 * @phba: pointer to lpfc hba data structure.
3483 *
3484 * This routine first calculates the sizes of the current els and allocated
3485 * scsi sgl lists, and then goes through all sgls to updates the physical
3486 * XRIs assigned due to port function reset. During port initialization, the
3487 * current els and allocated scsi sgl lists are 0s.
3488 *
3489 * Return codes
3490 * 0 - successful (for now, it always returns 0)
3491 **/
3492 int
3493 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3494 {
3495 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3496 uint16_t i, lxri, xri_cnt, els_xri_cnt;
3497 uint16_t nvmet_xri_cnt;
3498 LIST_HEAD(nvmet_sgl_list);
3499 int rc;
3500
3501 /*
3502 * update on pci function's nvmet xri-sgl list
3503 */
3504 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3505
3506 /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3507 nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3508 if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3509 /* els xri-sgl expanded */
3510 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3511 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3512 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3513 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3514 /* allocate the additional nvmet sgls */
3515 for (i = 0; i < xri_cnt; i++) {
3516 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3517 GFP_KERNEL);
3518 if (sglq_entry == NULL) {
3519 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3520 "6303 Failure to allocate an "
3521 "NVMET sgl entry:%d\n", i);
3522 rc = -ENOMEM;
3523 goto out_free_mem;
3524 }
3525 sglq_entry->buff_type = NVMET_BUFF_TYPE;
3526 sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3527 &sglq_entry->phys);
3528 if (sglq_entry->virt == NULL) {
3529 kfree(sglq_entry);
3530 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3531 "6304 Failure to allocate an "
3532 "NVMET buf:%d\n", i);
3533 rc = -ENOMEM;
3534 goto out_free_mem;
3535 }
3536 sglq_entry->sgl = sglq_entry->virt;
3537 memset(sglq_entry->sgl, 0,
3538 phba->cfg_sg_dma_buf_size);
3539 sglq_entry->state = SGL_FREED;
3540 list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3541 }
3542 spin_lock_irq(&phba->hbalock);
3543 spin_lock(&phba->sli4_hba.sgl_list_lock);
3544 list_splice_init(&nvmet_sgl_list,
3545 &phba->sli4_hba.lpfc_nvmet_sgl_list);
3546 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3547 spin_unlock_irq(&phba->hbalock);
3548 } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3549 /* nvmet xri-sgl shrunk */
3550 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3551 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3552 "6305 NVMET xri-sgl count decreased from "
3553 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3554 nvmet_xri_cnt);
3555 spin_lock_irq(&phba->hbalock);
3556 spin_lock(&phba->sli4_hba.sgl_list_lock);
3557 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3558 &nvmet_sgl_list);
3559 /* release extra nvmet sgls from list */
3560 for (i = 0; i < xri_cnt; i++) {
3561 list_remove_head(&nvmet_sgl_list,
3562 sglq_entry, struct lpfc_sglq, list);
3563 if (sglq_entry) {
3564 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3565 sglq_entry->phys);
3566 kfree(sglq_entry);
3567 }
3568 }
3569 list_splice_init(&nvmet_sgl_list,
3570 &phba->sli4_hba.lpfc_nvmet_sgl_list);
3571 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3572 spin_unlock_irq(&phba->hbalock);
3573 } else
3574 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3575 "6306 NVMET xri-sgl count unchanged: %d\n",
3576 nvmet_xri_cnt);
3577 phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3578
3579 /* update xris to nvmet sgls on the list */
3580 sglq_entry = NULL;
3581 sglq_entry_next = NULL;
3582 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3583 &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3584 lxri = lpfc_sli4_next_xritag(phba);
3585 if (lxri == NO_XRI) {
3586 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3587 "6307 Failed to allocate xri for "
3588 "NVMET sgl\n");
3589 rc = -ENOMEM;
3590 goto out_free_mem;
3591 }
3592 sglq_entry->sli4_lxritag = lxri;
3593 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3594 }
3595 return 0;
3596
3597 out_free_mem:
3598 lpfc_free_nvmet_sgl_list(phba);
3599 return rc;
3600 }
3601
3602 /**
3603 * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping
3604 * @phba: pointer to lpfc hba data structure.
3605 *
3606 * This routine first calculates the sizes of the current els and allocated
3607 * scsi sgl lists, and then goes through all sgls to updates the physical
3608 * XRIs assigned due to port function reset. During port initialization, the
3609 * current els and allocated scsi sgl lists are 0s.
3610 *
3611 * Return codes
3612 * 0 - successful (for now, it always returns 0)
3613 **/
3614 int
3615 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba)
3616 {
3617 struct lpfc_scsi_buf *psb, *psb_next;
3618 uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt;
3619 LIST_HEAD(scsi_sgl_list);
3620 int rc;
3621
3622 /*
3623 * update on pci function's els xri-sgl list
3624 */
3625 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3626 phba->total_scsi_bufs = 0;
3627
3628 /*
3629 * update on pci function's allocated scsi xri-sgl list
3630 */
3631 /* maximum number of xris available for scsi buffers */
3632 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3633 els_xri_cnt;
3634
3635 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3636 return 0;
3637
3638 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3639 phba->sli4_hba.scsi_xri_max = /* Split them up */
3640 (phba->sli4_hba.scsi_xri_max *
3641 phba->cfg_xri_split) / 100;
3642
3643 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3644 spin_lock(&phba->scsi_buf_list_put_lock);
3645 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3646 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3647 spin_unlock(&phba->scsi_buf_list_put_lock);
3648 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3649
3650 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3651 "6060 Current allocated SCSI xri-sgl count:%d, "
3652 "maximum SCSI xri count:%d (split:%d)\n",
3653 phba->sli4_hba.scsi_xri_cnt,
3654 phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split);
3655
3656 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3657 /* max scsi xri shrinked below the allocated scsi buffers */
3658 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3659 phba->sli4_hba.scsi_xri_max;
3660 /* release the extra allocated scsi buffers */
3661 for (i = 0; i < scsi_xri_cnt; i++) {
3662 list_remove_head(&scsi_sgl_list, psb,
3663 struct lpfc_scsi_buf, list);
3664 if (psb) {
3665 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3666 psb->data, psb->dma_handle);
3667 kfree(psb);
3668 }
3669 }
3670 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3671 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3672 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3673 }
3674
3675 /* update xris associated to remaining allocated scsi buffers */
3676 psb = NULL;
3677 psb_next = NULL;
3678 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3679 lxri = lpfc_sli4_next_xritag(phba);
3680 if (lxri == NO_XRI) {
3681 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3682 "2560 Failed to allocate xri for "
3683 "scsi buffer\n");
3684 rc = -ENOMEM;
3685 goto out_free_mem;
3686 }
3687 psb->cur_iocbq.sli4_lxritag = lxri;
3688 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3689 }
3690 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3691 spin_lock(&phba->scsi_buf_list_put_lock);
3692 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3693 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3694 spin_unlock(&phba->scsi_buf_list_put_lock);
3695 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3696 return 0;
3697
3698 out_free_mem:
3699 lpfc_scsi_free(phba);
3700 return rc;
3701 }
3702
3703 static uint64_t
3704 lpfc_get_wwpn(struct lpfc_hba *phba)
3705 {
3706 uint64_t wwn;
3707 int rc;
3708 LPFC_MBOXQ_t *mboxq;
3709 MAILBOX_t *mb;
3710
3711 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
3712 GFP_KERNEL);
3713 if (!mboxq)
3714 return (uint64_t)-1;
3715
3716 /* First get WWN of HBA instance */
3717 lpfc_read_nv(phba, mboxq);
3718 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
3719 if (rc != MBX_SUCCESS) {
3720 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3721 "6019 Mailbox failed , mbxCmd x%x "
3722 "READ_NV, mbxStatus x%x\n",
3723 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
3724 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
3725 mempool_free(mboxq, phba->mbox_mem_pool);
3726 return (uint64_t) -1;
3727 }
3728 mb = &mboxq->u.mb;
3729 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
3730 /* wwn is WWPN of HBA instance */
3731 mempool_free(mboxq, phba->mbox_mem_pool);
3732 if (phba->sli_rev == LPFC_SLI_REV4)
3733 return be64_to_cpu(wwn);
3734 else
3735 return rol64(wwn, 32);
3736 }
3737
3738 /**
3739 * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping
3740 * @phba: pointer to lpfc hba data structure.
3741 *
3742 * This routine first calculates the sizes of the current els and allocated
3743 * scsi sgl lists, and then goes through all sgls to updates the physical
3744 * XRIs assigned due to port function reset. During port initialization, the
3745 * current els and allocated scsi sgl lists are 0s.
3746 *
3747 * Return codes
3748 * 0 - successful (for now, it always returns 0)
3749 **/
3750 int
3751 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba)
3752 {
3753 struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
3754 uint16_t i, lxri, els_xri_cnt;
3755 uint16_t nvme_xri_cnt, nvme_xri_max;
3756 LIST_HEAD(nvme_sgl_list);
3757 int rc;
3758
3759 phba->total_nvme_bufs = 0;
3760
3761 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3762 return 0;
3763 /*
3764 * update on pci function's allocated nvme xri-sgl list
3765 */
3766
3767 /* maximum number of xris available for nvme buffers */
3768 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3769 nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3770 phba->sli4_hba.nvme_xri_max = nvme_xri_max;
3771 phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max;
3772
3773 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3774 "6074 Current allocated NVME xri-sgl count:%d, "
3775 "maximum NVME xri count:%d\n",
3776 phba->sli4_hba.nvme_xri_cnt,
3777 phba->sli4_hba.nvme_xri_max);
3778
3779 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3780 spin_lock(&phba->nvme_buf_list_put_lock);
3781 list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list);
3782 list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list);
3783 spin_unlock(&phba->nvme_buf_list_put_lock);
3784 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3785
3786 if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) {
3787 /* max nvme xri shrunk below the allocated nvme buffers */
3788 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3789 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt -
3790 phba->sli4_hba.nvme_xri_max;
3791 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3792 /* release the extra allocated nvme buffers */
3793 for (i = 0; i < nvme_xri_cnt; i++) {
3794 list_remove_head(&nvme_sgl_list, lpfc_ncmd,
3795 struct lpfc_nvme_buf, list);
3796 if (lpfc_ncmd) {
3797 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3798 lpfc_ncmd->data,
3799 lpfc_ncmd->dma_handle);
3800 kfree(lpfc_ncmd);
3801 }
3802 }
3803 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3804 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt;
3805 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3806 }
3807
3808 /* update xris associated to remaining allocated nvme buffers */
3809 lpfc_ncmd = NULL;
3810 lpfc_ncmd_next = NULL;
3811 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3812 &nvme_sgl_list, list) {
3813 lxri = lpfc_sli4_next_xritag(phba);
3814 if (lxri == NO_XRI) {
3815 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3816 "6075 Failed to allocate xri for "
3817 "nvme buffer\n");
3818 rc = -ENOMEM;
3819 goto out_free_mem;
3820 }
3821 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
3822 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3823 }
3824 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3825 spin_lock(&phba->nvme_buf_list_put_lock);
3826 list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get);
3827 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
3828 spin_unlock(&phba->nvme_buf_list_put_lock);
3829 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3830 return 0;
3831
3832 out_free_mem:
3833 lpfc_nvme_free(phba);
3834 return rc;
3835 }
3836
3837 /**
3838 * lpfc_create_port - Create an FC port
3839 * @phba: pointer to lpfc hba data structure.
3840 * @instance: a unique integer ID to this FC port.
3841 * @dev: pointer to the device data structure.
3842 *
3843 * This routine creates a FC port for the upper layer protocol. The FC port
3844 * can be created on top of either a physical port or a virtual port provided
3845 * by the HBA. This routine also allocates a SCSI host data structure (shost)
3846 * and associates the FC port created before adding the shost into the SCSI
3847 * layer.
3848 *
3849 * Return codes
3850 * @vport - pointer to the virtual N_Port data structure.
3851 * NULL - port create failed.
3852 **/
3853 struct lpfc_vport *
3854 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3855 {
3856 struct lpfc_vport *vport;
3857 struct Scsi_Host *shost = NULL;
3858 int error = 0;
3859 int i;
3860 uint64_t wwn;
3861 bool use_no_reset_hba = false;
3862 int rc;
3863
3864 if (lpfc_no_hba_reset_cnt) {
3865 if (phba->sli_rev < LPFC_SLI_REV4 &&
3866 dev == &phba->pcidev->dev) {
3867 /* Reset the port first */
3868 lpfc_sli_brdrestart(phba);
3869 rc = lpfc_sli_chipset_init(phba);
3870 if (rc)
3871 return NULL;
3872 }
3873 wwn = lpfc_get_wwpn(phba);
3874 }
3875
3876 for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
3877 if (wwn == lpfc_no_hba_reset[i]) {
3878 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3879 "6020 Setting use_no_reset port=%llx\n",
3880 wwn);
3881 use_no_reset_hba = true;
3882 break;
3883 }
3884 }
3885
3886 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
3887 if (dev != &phba->pcidev->dev) {
3888 shost = scsi_host_alloc(&lpfc_vport_template,
3889 sizeof(struct lpfc_vport));
3890 } else {
3891 if (!use_no_reset_hba)
3892 shost = scsi_host_alloc(&lpfc_template,
3893 sizeof(struct lpfc_vport));
3894 else
3895 shost = scsi_host_alloc(&lpfc_template_no_hr,
3896 sizeof(struct lpfc_vport));
3897 }
3898 } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
3899 shost = scsi_host_alloc(&lpfc_template_nvme,
3900 sizeof(struct lpfc_vport));
3901 }
3902 if (!shost)
3903 goto out;
3904
3905 vport = (struct lpfc_vport *) shost->hostdata;
3906 vport->phba = phba;
3907 vport->load_flag |= FC_LOADING;
3908 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3909 vport->fc_rscn_flush = 0;
3910 lpfc_get_vport_cfgparam(vport);
3911
3912 shost->unique_id = instance;
3913 shost->max_id = LPFC_MAX_TARGET;
3914 shost->max_lun = vport->cfg_max_luns;
3915 shost->this_id = -1;
3916 shost->max_cmd_len = 16;
3917 shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3918 if (phba->sli_rev == LPFC_SLI_REV4) {
3919 shost->dma_boundary =
3920 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3921 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3922 }
3923
3924 /*
3925 * Set initial can_queue value since 0 is no longer supported and
3926 * scsi_add_host will fail. This will be adjusted later based on the
3927 * max xri value determined in hba setup.
3928 */
3929 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3930 if (dev != &phba->pcidev->dev) {
3931 shost->transportt = lpfc_vport_transport_template;
3932 vport->port_type = LPFC_NPIV_PORT;
3933 } else {
3934 shost->transportt = lpfc_transport_template;
3935 vport->port_type = LPFC_PHYSICAL_PORT;
3936 }
3937
3938 /* Initialize all internally managed lists. */
3939 INIT_LIST_HEAD(&vport->fc_nodes);
3940 INIT_LIST_HEAD(&vport->rcv_buffer_list);
3941 spin_lock_init(&vport->work_port_lock);
3942
3943 timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
3944
3945 timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
3946
3947 timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
3948
3949 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3950 if (error)
3951 goto out_put_shost;
3952
3953 spin_lock_irq(&phba->hbalock);
3954 list_add_tail(&vport->listentry, &phba->port_list);
3955 spin_unlock_irq(&phba->hbalock);
3956 return vport;
3957
3958 out_put_shost:
3959 scsi_host_put(shost);
3960 out:
3961 return NULL;
3962 }
3963
3964 /**
3965 * destroy_port - destroy an FC port
3966 * @vport: pointer to an lpfc virtual N_Port data structure.
3967 *
3968 * This routine destroys a FC port from the upper layer protocol. All the
3969 * resources associated with the port are released.
3970 **/
3971 void
3972 destroy_port(struct lpfc_vport *vport)
3973 {
3974 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3975 struct lpfc_hba *phba = vport->phba;
3976
3977 lpfc_debugfs_terminate(vport);
3978 fc_remove_host(shost);
3979 scsi_remove_host(shost);
3980
3981 spin_lock_irq(&phba->hbalock);
3982 list_del_init(&vport->listentry);
3983 spin_unlock_irq(&phba->hbalock);
3984
3985 lpfc_cleanup(vport);
3986 return;
3987 }
3988
3989 /**
3990 * lpfc_get_instance - Get a unique integer ID
3991 *
3992 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3993 * uses the kernel idr facility to perform the task.
3994 *
3995 * Return codes:
3996 * instance - a unique integer ID allocated as the new instance.
3997 * -1 - lpfc get instance failed.
3998 **/
3999 int
4000 lpfc_get_instance(void)
4001 {
4002 int ret;
4003
4004 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4005 return ret < 0 ? -1 : ret;
4006 }
4007
4008 /**
4009 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4010 * @shost: pointer to SCSI host data structure.
4011 * @time: elapsed time of the scan in jiffies.
4012 *
4013 * This routine is called by the SCSI layer with a SCSI host to determine
4014 * whether the scan host is finished.
4015 *
4016 * Note: there is no scan_start function as adapter initialization will have
4017 * asynchronously kicked off the link initialization.
4018 *
4019 * Return codes
4020 * 0 - SCSI host scan is not over yet.
4021 * 1 - SCSI host scan is over.
4022 **/
4023 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4024 {
4025 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4026 struct lpfc_hba *phba = vport->phba;
4027 int stat = 0;
4028
4029 spin_lock_irq(shost->host_lock);
4030
4031 if (vport->load_flag & FC_UNLOADING) {
4032 stat = 1;
4033 goto finished;
4034 }
4035 if (time >= msecs_to_jiffies(30 * 1000)) {
4036 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4037 "0461 Scanning longer than 30 "
4038 "seconds. Continuing initialization\n");
4039 stat = 1;
4040 goto finished;
4041 }
4042 if (time >= msecs_to_jiffies(15 * 1000) &&
4043 phba->link_state <= LPFC_LINK_DOWN) {
4044 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4045 "0465 Link down longer than 15 "
4046 "seconds. Continuing initialization\n");
4047 stat = 1;
4048 goto finished;
4049 }
4050
4051 if (vport->port_state != LPFC_VPORT_READY)
4052 goto finished;
4053 if (vport->num_disc_nodes || vport->fc_prli_sent)
4054 goto finished;
4055 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4056 goto finished;
4057 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4058 goto finished;
4059
4060 stat = 1;
4061
4062 finished:
4063 spin_unlock_irq(shost->host_lock);
4064 return stat;
4065 }
4066
4067 /**
4068 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4069 * @shost: pointer to SCSI host data structure.
4070 *
4071 * This routine initializes a given SCSI host attributes on a FC port. The
4072 * SCSI host can be either on top of a physical port or a virtual port.
4073 **/
4074 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4075 {
4076 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4077 struct lpfc_hba *phba = vport->phba;
4078 /*
4079 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
4080 */
4081
4082 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4083 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4084 fc_host_supported_classes(shost) = FC_COS_CLASS3;
4085
4086 memset(fc_host_supported_fc4s(shost), 0,
4087 sizeof(fc_host_supported_fc4s(shost)));
4088 fc_host_supported_fc4s(shost)[2] = 1;
4089 fc_host_supported_fc4s(shost)[7] = 1;
4090
4091 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4092 sizeof fc_host_symbolic_name(shost));
4093
4094 fc_host_supported_speeds(shost) = 0;
4095 if (phba->lmt & LMT_32Gb)
4096 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4097 if (phba->lmt & LMT_16Gb)
4098 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4099 if (phba->lmt & LMT_10Gb)
4100 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4101 if (phba->lmt & LMT_8Gb)
4102 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4103 if (phba->lmt & LMT_4Gb)
4104 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4105 if (phba->lmt & LMT_2Gb)
4106 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4107 if (phba->lmt & LMT_1Gb)
4108 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4109
4110 fc_host_maxframe_size(shost) =
4111 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4112 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4113
4114 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4115
4116 /* This value is also unchanging */
4117 memset(fc_host_active_fc4s(shost), 0,
4118 sizeof(fc_host_active_fc4s(shost)));
4119 fc_host_active_fc4s(shost)[2] = 1;
4120 fc_host_active_fc4s(shost)[7] = 1;
4121
4122 fc_host_max_npiv_vports(shost) = phba->max_vpi;
4123 spin_lock_irq(shost->host_lock);
4124 vport->load_flag &= ~FC_LOADING;
4125 spin_unlock_irq(shost->host_lock);
4126 }
4127
4128 /**
4129 * lpfc_stop_port_s3 - Stop SLI3 device port
4130 * @phba: pointer to lpfc hba data structure.
4131 *
4132 * This routine is invoked to stop an SLI3 device port, it stops the device
4133 * from generating interrupts and stops the device driver's timers for the
4134 * device.
4135 **/
4136 static void
4137 lpfc_stop_port_s3(struct lpfc_hba *phba)
4138 {
4139 /* Clear all interrupt enable conditions */
4140 writel(0, phba->HCregaddr);
4141 readl(phba->HCregaddr); /* flush */
4142 /* Clear all pending interrupts */
4143 writel(0xffffffff, phba->HAregaddr);
4144 readl(phba->HAregaddr); /* flush */
4145
4146 /* Reset some HBA SLI setup states */
4147 lpfc_stop_hba_timers(phba);
4148 phba->pport->work_port_events = 0;
4149 }
4150
4151 /**
4152 * lpfc_stop_port_s4 - Stop SLI4 device port
4153 * @phba: pointer to lpfc hba data structure.
4154 *
4155 * This routine is invoked to stop an SLI4 device port, it stops the device
4156 * from generating interrupts and stops the device driver's timers for the
4157 * device.
4158 **/
4159 static void
4160 lpfc_stop_port_s4(struct lpfc_hba *phba)
4161 {
4162 /* Reset some HBA SLI4 setup states */
4163 lpfc_stop_hba_timers(phba);
4164 phba->pport->work_port_events = 0;
4165 phba->sli4_hba.intr_enable = 0;
4166 }
4167
4168 /**
4169 * lpfc_stop_port - Wrapper function for stopping hba port
4170 * @phba: Pointer to HBA context object.
4171 *
4172 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4173 * the API jump table function pointer from the lpfc_hba struct.
4174 **/
4175 void
4176 lpfc_stop_port(struct lpfc_hba *phba)
4177 {
4178 phba->lpfc_stop_port(phba);
4179
4180 if (phba->wq)
4181 flush_workqueue(phba->wq);
4182 }
4183
4184 /**
4185 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4186 * @phba: Pointer to hba for which this call is being executed.
4187 *
4188 * This routine starts the timer waiting for the FCF rediscovery to complete.
4189 **/
4190 void
4191 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4192 {
4193 unsigned long fcf_redisc_wait_tmo =
4194 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4195 /* Start fcf rediscovery wait period timer */
4196 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4197 spin_lock_irq(&phba->hbalock);
4198 /* Allow action to new fcf asynchronous event */
4199 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4200 /* Mark the FCF rediscovery pending state */
4201 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4202 spin_unlock_irq(&phba->hbalock);
4203 }
4204
4205 /**
4206 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4207 * @ptr: Map to lpfc_hba data structure pointer.
4208 *
4209 * This routine is invoked when waiting for FCF table rediscover has been
4210 * timed out. If new FCF record(s) has (have) been discovered during the
4211 * wait period, a new FCF event shall be added to the FCOE async event
4212 * list, and then worker thread shall be waked up for processing from the
4213 * worker thread context.
4214 **/
4215 static void
4216 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4217 {
4218 struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4219
4220 /* Don't send FCF rediscovery event if timer cancelled */
4221 spin_lock_irq(&phba->hbalock);
4222 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4223 spin_unlock_irq(&phba->hbalock);
4224 return;
4225 }
4226 /* Clear FCF rediscovery timer pending flag */
4227 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4228 /* FCF rediscovery event to worker thread */
4229 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4230 spin_unlock_irq(&phba->hbalock);
4231 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4232 "2776 FCF rediscover quiescent timer expired\n");
4233 /* wake up worker thread */
4234 lpfc_worker_wake_up(phba);
4235 }
4236
4237 /**
4238 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4239 * @phba: pointer to lpfc hba data structure.
4240 * @acqe_link: pointer to the async link completion queue entry.
4241 *
4242 * This routine is to parse the SLI4 link-attention link fault code and
4243 * translate it into the base driver's read link attention mailbox command
4244 * status.
4245 *
4246 * Return: Link-attention status in terms of base driver's coding.
4247 **/
4248 static uint16_t
4249 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4250 struct lpfc_acqe_link *acqe_link)
4251 {
4252 uint16_t latt_fault;
4253
4254 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4255 case LPFC_ASYNC_LINK_FAULT_NONE:
4256 case LPFC_ASYNC_LINK_FAULT_LOCAL:
4257 case LPFC_ASYNC_LINK_FAULT_REMOTE:
4258 latt_fault = 0;
4259 break;
4260 default:
4261 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4262 "0398 Invalid link fault code: x%x\n",
4263 bf_get(lpfc_acqe_link_fault, acqe_link));
4264 latt_fault = MBXERR_ERROR;
4265 break;
4266 }
4267 return latt_fault;
4268 }
4269
4270 /**
4271 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4272 * @phba: pointer to lpfc hba data structure.
4273 * @acqe_link: pointer to the async link completion queue entry.
4274 *
4275 * This routine is to parse the SLI4 link attention type and translate it
4276 * into the base driver's link attention type coding.
4277 *
4278 * Return: Link attention type in terms of base driver's coding.
4279 **/
4280 static uint8_t
4281 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4282 struct lpfc_acqe_link *acqe_link)
4283 {
4284 uint8_t att_type;
4285
4286 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4287 case LPFC_ASYNC_LINK_STATUS_DOWN:
4288 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4289 att_type = LPFC_ATT_LINK_DOWN;
4290 break;
4291 case LPFC_ASYNC_LINK_STATUS_UP:
4292 /* Ignore physical link up events - wait for logical link up */
4293 att_type = LPFC_ATT_RESERVED;
4294 break;
4295 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4296 att_type = LPFC_ATT_LINK_UP;
4297 break;
4298 default:
4299 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4300 "0399 Invalid link attention type: x%x\n",
4301 bf_get(lpfc_acqe_link_status, acqe_link));
4302 att_type = LPFC_ATT_RESERVED;
4303 break;
4304 }
4305 return att_type;
4306 }
4307
4308 /**
4309 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4310 * @phba: pointer to lpfc hba data structure.
4311 *
4312 * This routine is to get an SLI3 FC port's link speed in Mbps.
4313 *
4314 * Return: link speed in terms of Mbps.
4315 **/
4316 uint32_t
4317 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4318 {
4319 uint32_t link_speed;
4320
4321 if (!lpfc_is_link_up(phba))
4322 return 0;
4323
4324 if (phba->sli_rev <= LPFC_SLI_REV3) {
4325 switch (phba->fc_linkspeed) {
4326 case LPFC_LINK_SPEED_1GHZ:
4327 link_speed = 1000;
4328 break;
4329 case LPFC_LINK_SPEED_2GHZ:
4330 link_speed = 2000;
4331 break;
4332 case LPFC_LINK_SPEED_4GHZ:
4333 link_speed = 4000;
4334 break;
4335 case LPFC_LINK_SPEED_8GHZ:
4336 link_speed = 8000;
4337 break;
4338 case LPFC_LINK_SPEED_10GHZ:
4339 link_speed = 10000;
4340 break;
4341 case LPFC_LINK_SPEED_16GHZ:
4342 link_speed = 16000;
4343 break;
4344 default:
4345 link_speed = 0;
4346 }
4347 } else {
4348 if (phba->sli4_hba.link_state.logical_speed)
4349 link_speed =
4350 phba->sli4_hba.link_state.logical_speed;
4351 else
4352 link_speed = phba->sli4_hba.link_state.speed;
4353 }
4354 return link_speed;
4355 }
4356
4357 /**
4358 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4359 * @phba: pointer to lpfc hba data structure.
4360 * @evt_code: asynchronous event code.
4361 * @speed_code: asynchronous event link speed code.
4362 *
4363 * This routine is to parse the giving SLI4 async event link speed code into
4364 * value of Mbps for the link speed.
4365 *
4366 * Return: link speed in terms of Mbps.
4367 **/
4368 static uint32_t
4369 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4370 uint8_t speed_code)
4371 {
4372 uint32_t port_speed;
4373
4374 switch (evt_code) {
4375 case LPFC_TRAILER_CODE_LINK:
4376 switch (speed_code) {
4377 case LPFC_ASYNC_LINK_SPEED_ZERO:
4378 port_speed = 0;
4379 break;
4380 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4381 port_speed = 10;
4382 break;
4383 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4384 port_speed = 100;
4385 break;
4386 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4387 port_speed = 1000;
4388 break;
4389 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4390 port_speed = 10000;
4391 break;
4392 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4393 port_speed = 20000;
4394 break;
4395 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4396 port_speed = 25000;
4397 break;
4398 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4399 port_speed = 40000;
4400 break;
4401 default:
4402 port_speed = 0;
4403 }
4404 break;
4405 case LPFC_TRAILER_CODE_FC:
4406 switch (speed_code) {
4407 case LPFC_FC_LA_SPEED_UNKNOWN:
4408 port_speed = 0;
4409 break;
4410 case LPFC_FC_LA_SPEED_1G:
4411 port_speed = 1000;
4412 break;
4413 case LPFC_FC_LA_SPEED_2G:
4414 port_speed = 2000;
4415 break;
4416 case LPFC_FC_LA_SPEED_4G:
4417 port_speed = 4000;
4418 break;
4419 case LPFC_FC_LA_SPEED_8G:
4420 port_speed = 8000;
4421 break;
4422 case LPFC_FC_LA_SPEED_10G:
4423 port_speed = 10000;
4424 break;
4425 case LPFC_FC_LA_SPEED_16G:
4426 port_speed = 16000;
4427 break;
4428 case LPFC_FC_LA_SPEED_32G:
4429 port_speed = 32000;
4430 break;
4431 default:
4432 port_speed = 0;
4433 }
4434 break;
4435 default:
4436 port_speed = 0;
4437 }
4438 return port_speed;
4439 }
4440
4441 /**
4442 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4443 * @phba: pointer to lpfc hba data structure.
4444 * @acqe_link: pointer to the async link completion queue entry.
4445 *
4446 * This routine is to handle the SLI4 asynchronous FCoE link event.
4447 **/
4448 static void
4449 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4450 struct lpfc_acqe_link *acqe_link)
4451 {
4452 struct lpfc_dmabuf *mp;
4453 LPFC_MBOXQ_t *pmb;
4454 MAILBOX_t *mb;
4455 struct lpfc_mbx_read_top *la;
4456 uint8_t att_type;
4457 int rc;
4458
4459 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4460 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4461 return;
4462 phba->fcoe_eventtag = acqe_link->event_tag;
4463 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4464 if (!pmb) {
4465 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4466 "0395 The mboxq allocation failed\n");
4467 return;
4468 }
4469 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4470 if (!mp) {
4471 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4472 "0396 The lpfc_dmabuf allocation failed\n");
4473 goto out_free_pmb;
4474 }
4475 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4476 if (!mp->virt) {
4477 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4478 "0397 The mbuf allocation failed\n");
4479 goto out_free_dmabuf;
4480 }
4481
4482 /* Cleanup any outstanding ELS commands */
4483 lpfc_els_flush_all_cmd(phba);
4484
4485 /* Block ELS IOCBs until we have done process link event */
4486 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4487
4488 /* Update link event statistics */
4489 phba->sli.slistat.link_event++;
4490
4491 /* Create lpfc_handle_latt mailbox command from link ACQE */
4492 lpfc_read_topology(phba, pmb, mp);
4493 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4494 pmb->vport = phba->pport;
4495
4496 /* Keep the link status for extra SLI4 state machine reference */
4497 phba->sli4_hba.link_state.speed =
4498 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4499 bf_get(lpfc_acqe_link_speed, acqe_link));
4500 phba->sli4_hba.link_state.duplex =
4501 bf_get(lpfc_acqe_link_duplex, acqe_link);
4502 phba->sli4_hba.link_state.status =
4503 bf_get(lpfc_acqe_link_status, acqe_link);
4504 phba->sli4_hba.link_state.type =
4505 bf_get(lpfc_acqe_link_type, acqe_link);
4506 phba->sli4_hba.link_state.number =
4507 bf_get(lpfc_acqe_link_number, acqe_link);
4508 phba->sli4_hba.link_state.fault =
4509 bf_get(lpfc_acqe_link_fault, acqe_link);
4510 phba->sli4_hba.link_state.logical_speed =
4511 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4512
4513 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4514 "2900 Async FC/FCoE Link event - Speed:%dGBit "
4515 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4516 "Logical speed:%dMbps Fault:%d\n",
4517 phba->sli4_hba.link_state.speed,
4518 phba->sli4_hba.link_state.topology,
4519 phba->sli4_hba.link_state.status,
4520 phba->sli4_hba.link_state.type,
4521 phba->sli4_hba.link_state.number,
4522 phba->sli4_hba.link_state.logical_speed,
4523 phba->sli4_hba.link_state.fault);
4524 /*
4525 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4526 * topology info. Note: Optional for non FC-AL ports.
4527 */
4528 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4529 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4530 if (rc == MBX_NOT_FINISHED)
4531 goto out_free_dmabuf;
4532 return;
4533 }
4534 /*
4535 * For FCoE Mode: fill in all the topology information we need and call
4536 * the READ_TOPOLOGY completion routine to continue without actually
4537 * sending the READ_TOPOLOGY mailbox command to the port.
4538 */
4539 /* Parse and translate status field */
4540 mb = &pmb->u.mb;
4541 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
4542
4543 /* Parse and translate link attention fields */
4544 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4545 la->eventTag = acqe_link->event_tag;
4546 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4547 bf_set(lpfc_mbx_read_top_link_spd, la,
4548 (bf_get(lpfc_acqe_link_speed, acqe_link)));
4549
4550 /* Fake the the following irrelvant fields */
4551 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4552 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4553 bf_set(lpfc_mbx_read_top_il, la, 0);
4554 bf_set(lpfc_mbx_read_top_pb, la, 0);
4555 bf_set(lpfc_mbx_read_top_fa, la, 0);
4556 bf_set(lpfc_mbx_read_top_mm, la, 0);
4557
4558 /* Invoke the lpfc_handle_latt mailbox command callback function */
4559 lpfc_mbx_cmpl_read_topology(phba, pmb);
4560
4561 return;
4562
4563 out_free_dmabuf:
4564 kfree(mp);
4565 out_free_pmb:
4566 mempool_free(pmb, phba->mbox_mem_pool);
4567 }
4568
4569 /**
4570 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4571 * @phba: pointer to lpfc hba data structure.
4572 * @acqe_fc: pointer to the async fc completion queue entry.
4573 *
4574 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4575 * that the event was received and then issue a read_topology mailbox command so
4576 * that the rest of the driver will treat it the same as SLI3.
4577 **/
4578 static void
4579 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4580 {
4581 struct lpfc_dmabuf *mp;
4582 LPFC_MBOXQ_t *pmb;
4583 MAILBOX_t *mb;
4584 struct lpfc_mbx_read_top *la;
4585 int rc;
4586
4587 if (bf_get(lpfc_trailer_type, acqe_fc) !=
4588 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4589 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4590 "2895 Non FC link Event detected.(%d)\n",
4591 bf_get(lpfc_trailer_type, acqe_fc));
4592 return;
4593 }
4594 /* Keep the link status for extra SLI4 state machine reference */
4595 phba->sli4_hba.link_state.speed =
4596 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4597 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4598 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4599 phba->sli4_hba.link_state.topology =
4600 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4601 phba->sli4_hba.link_state.status =
4602 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4603 phba->sli4_hba.link_state.type =
4604 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4605 phba->sli4_hba.link_state.number =
4606 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4607 phba->sli4_hba.link_state.fault =
4608 bf_get(lpfc_acqe_link_fault, acqe_fc);
4609 phba->sli4_hba.link_state.logical_speed =
4610 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4611 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4612 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4613 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4614 "%dMbps Fault:%d\n",
4615 phba->sli4_hba.link_state.speed,
4616 phba->sli4_hba.link_state.topology,
4617 phba->sli4_hba.link_state.status,
4618 phba->sli4_hba.link_state.type,
4619 phba->sli4_hba.link_state.number,
4620 phba->sli4_hba.link_state.logical_speed,
4621 phba->sli4_hba.link_state.fault);
4622 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4623 if (!pmb) {
4624 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4625 "2897 The mboxq allocation failed\n");
4626 return;
4627 }
4628 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4629 if (!mp) {
4630 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4631 "2898 The lpfc_dmabuf allocation failed\n");
4632 goto out_free_pmb;
4633 }
4634 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4635 if (!mp->virt) {
4636 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4637 "2899 The mbuf allocation failed\n");
4638 goto out_free_dmabuf;
4639 }
4640
4641 /* Cleanup any outstanding ELS commands */
4642 lpfc_els_flush_all_cmd(phba);
4643
4644 /* Block ELS IOCBs until we have done process link event */
4645 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4646
4647 /* Update link event statistics */
4648 phba->sli.slistat.link_event++;
4649
4650 /* Create lpfc_handle_latt mailbox command from link ACQE */
4651 lpfc_read_topology(phba, pmb, mp);
4652 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4653 pmb->vport = phba->pport;
4654
4655 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
4656 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
4657
4658 switch (phba->sli4_hba.link_state.status) {
4659 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
4660 phba->link_flag |= LS_MDS_LINK_DOWN;
4661 break;
4662 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
4663 phba->link_flag |= LS_MDS_LOOPBACK;
4664 break;
4665 default:
4666 break;
4667 }
4668
4669 /* Parse and translate status field */
4670 mb = &pmb->u.mb;
4671 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba,
4672 (void *)acqe_fc);
4673
4674 /* Parse and translate link attention fields */
4675 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
4676 la->eventTag = acqe_fc->event_tag;
4677
4678 if (phba->sli4_hba.link_state.status ==
4679 LPFC_FC_LA_TYPE_UNEXP_WWPN) {
4680 bf_set(lpfc_mbx_read_top_att_type, la,
4681 LPFC_FC_LA_TYPE_UNEXP_WWPN);
4682 } else {
4683 bf_set(lpfc_mbx_read_top_att_type, la,
4684 LPFC_FC_LA_TYPE_LINK_DOWN);
4685 }
4686 /* Invoke the mailbox command callback function */
4687 lpfc_mbx_cmpl_read_topology(phba, pmb);
4688
4689 return;
4690 }
4691
4692 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4693 if (rc == MBX_NOT_FINISHED)
4694 goto out_free_dmabuf;
4695 return;
4696
4697 out_free_dmabuf:
4698 kfree(mp);
4699 out_free_pmb:
4700 mempool_free(pmb, phba->mbox_mem_pool);
4701 }
4702
4703 /**
4704 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4705 * @phba: pointer to lpfc hba data structure.
4706 * @acqe_fc: pointer to the async SLI completion queue entry.
4707 *
4708 * This routine is to handle the SLI4 asynchronous SLI events.
4709 **/
4710 static void
4711 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4712 {
4713 char port_name;
4714 char message[128];
4715 uint8_t status;
4716 uint8_t evt_type;
4717 uint8_t operational = 0;
4718 struct temp_event temp_event_data;
4719 struct lpfc_acqe_misconfigured_event *misconfigured;
4720 struct Scsi_Host *shost;
4721
4722 evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4723
4724 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4725 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4726 "x%08x SLI Event Type:%d\n",
4727 acqe_sli->event_data1, acqe_sli->event_data2,
4728 evt_type);
4729
4730 port_name = phba->Port[0];
4731 if (port_name == 0x00)
4732 port_name = '?'; /* get port name is empty */
4733
4734 switch (evt_type) {
4735 case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4736 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4737 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4738 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4739
4740 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4741 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4742 acqe_sli->event_data1, port_name);
4743
4744 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
4745 shost = lpfc_shost_from_vport(phba->pport);
4746 fc_host_post_vendor_event(shost, fc_get_event_number(),
4747 sizeof(temp_event_data),
4748 (char *)&temp_event_data,
4749 SCSI_NL_VID_TYPE_PCI
4750 | PCI_VENDOR_ID_EMULEX);
4751 break;
4752 case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4753 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4754 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4755 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4756
4757 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4758 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4759 acqe_sli->event_data1, port_name);
4760
4761 shost = lpfc_shost_from_vport(phba->pport);
4762 fc_host_post_vendor_event(shost, fc_get_event_number(),
4763 sizeof(temp_event_data),
4764 (char *)&temp_event_data,
4765 SCSI_NL_VID_TYPE_PCI
4766 | PCI_VENDOR_ID_EMULEX);
4767 break;
4768 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4769 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4770 &acqe_sli->event_data1;
4771
4772 /* fetch the status for this port */
4773 switch (phba->sli4_hba.lnk_info.lnk_no) {
4774 case LPFC_LINK_NUMBER_0:
4775 status = bf_get(lpfc_sli_misconfigured_port0_state,
4776 &misconfigured->theEvent);
4777 operational = bf_get(lpfc_sli_misconfigured_port0_op,
4778 &misconfigured->theEvent);
4779 break;
4780 case LPFC_LINK_NUMBER_1:
4781 status = bf_get(lpfc_sli_misconfigured_port1_state,
4782 &misconfigured->theEvent);
4783 operational = bf_get(lpfc_sli_misconfigured_port1_op,
4784 &misconfigured->theEvent);
4785 break;
4786 case LPFC_LINK_NUMBER_2:
4787 status = bf_get(lpfc_sli_misconfigured_port2_state,
4788 &misconfigured->theEvent);
4789 operational = bf_get(lpfc_sli_misconfigured_port2_op,
4790 &misconfigured->theEvent);
4791 break;
4792 case LPFC_LINK_NUMBER_3:
4793 status = bf_get(lpfc_sli_misconfigured_port3_state,
4794 &misconfigured->theEvent);
4795 operational = bf_get(lpfc_sli_misconfigured_port3_op,
4796 &misconfigured->theEvent);
4797 break;
4798 default:
4799 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4800 "3296 "
4801 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
4802 "event: Invalid link %d",
4803 phba->sli4_hba.lnk_info.lnk_no);
4804 return;
4805 }
4806
4807 /* Skip if optic state unchanged */
4808 if (phba->sli4_hba.lnk_info.optic_state == status)
4809 return;
4810
4811 switch (status) {
4812 case LPFC_SLI_EVENT_STATUS_VALID:
4813 sprintf(message, "Physical Link is functional");
4814 break;
4815 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4816 sprintf(message, "Optics faulted/incorrectly "
4817 "installed/not installed - Reseat optics, "
4818 "if issue not resolved, replace.");
4819 break;
4820 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4821 sprintf(message,
4822 "Optics of two types installed - Remove one "
4823 "optic or install matching pair of optics.");
4824 break;
4825 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4826 sprintf(message, "Incompatible optics - Replace with "
4827 "compatible optics for card to function.");
4828 break;
4829 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
4830 sprintf(message, "Unqualified optics - Replace with "
4831 "Avago optics for Warranty and Technical "
4832 "Support - Link is%s operational",
4833 (operational) ? " not" : "");
4834 break;
4835 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
4836 sprintf(message, "Uncertified optics - Replace with "
4837 "Avago-certified optics to enable link "
4838 "operation - Link is%s operational",
4839 (operational) ? " not" : "");
4840 break;
4841 default:
4842 /* firmware is reporting a status we don't know about */
4843 sprintf(message, "Unknown event status x%02x", status);
4844 break;
4845 }
4846 phba->sli4_hba.lnk_info.optic_state = status;
4847 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4848 "3176 Port Name %c %s\n", port_name, message);
4849 break;
4850 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4851 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4852 "3192 Remote DPort Test Initiated - "
4853 "Event Data1:x%08x Event Data2: x%08x\n",
4854 acqe_sli->event_data1, acqe_sli->event_data2);
4855 break;
4856 default:
4857 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4858 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4859 "x%08x SLI Event Type:%d\n",
4860 acqe_sli->event_data1, acqe_sli->event_data2,
4861 evt_type);
4862 break;
4863 }
4864 }
4865
4866 /**
4867 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4868 * @vport: pointer to vport data structure.
4869 *
4870 * This routine is to perform Clear Virtual Link (CVL) on a vport in
4871 * response to a CVL event.
4872 *
4873 * Return the pointer to the ndlp with the vport if successful, otherwise
4874 * return NULL.
4875 **/
4876 static struct lpfc_nodelist *
4877 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4878 {
4879 struct lpfc_nodelist *ndlp;
4880 struct Scsi_Host *shost;
4881 struct lpfc_hba *phba;
4882
4883 if (!vport)
4884 return NULL;
4885 phba = vport->phba;
4886 if (!phba)
4887 return NULL;
4888 ndlp = lpfc_findnode_did(vport, Fabric_DID);
4889 if (!ndlp) {
4890 /* Cannot find existing Fabric ndlp, so allocate a new one */
4891 ndlp = lpfc_nlp_init(vport, Fabric_DID);
4892 if (!ndlp)
4893 return 0;
4894 /* Set the node type */
4895 ndlp->nlp_type |= NLP_FABRIC;
4896 /* Put ndlp onto node list */
4897 lpfc_enqueue_node(vport, ndlp);
4898 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4899 /* re-setup ndlp without removing from node list */
4900 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4901 if (!ndlp)
4902 return 0;
4903 }
4904 if ((phba->pport->port_state < LPFC_FLOGI) &&
4905 (phba->pport->port_state != LPFC_VPORT_FAILED))
4906 return NULL;
4907 /* If virtual link is not yet instantiated ignore CVL */
4908 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4909 && (vport->port_state != LPFC_VPORT_FAILED))
4910 return NULL;
4911 shost = lpfc_shost_from_vport(vport);
4912 if (!shost)
4913 return NULL;
4914 lpfc_linkdown_port(vport);
4915 lpfc_cleanup_pending_mbox(vport);
4916 spin_lock_irq(shost->host_lock);
4917 vport->fc_flag |= FC_VPORT_CVL_RCVD;
4918 spin_unlock_irq(shost->host_lock);
4919
4920 return ndlp;
4921 }
4922
4923 /**
4924 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4925 * @vport: pointer to lpfc hba data structure.
4926 *
4927 * This routine is to perform Clear Virtual Link (CVL) on all vports in
4928 * response to a FCF dead event.
4929 **/
4930 static void
4931 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4932 {
4933 struct lpfc_vport **vports;
4934 int i;
4935
4936 vports = lpfc_create_vport_work_array(phba);
4937 if (vports)
4938 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4939 lpfc_sli4_perform_vport_cvl(vports[i]);
4940 lpfc_destroy_vport_work_array(phba, vports);
4941 }
4942
4943 /**
4944 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4945 * @phba: pointer to lpfc hba data structure.
4946 * @acqe_link: pointer to the async fcoe completion queue entry.
4947 *
4948 * This routine is to handle the SLI4 asynchronous fcoe event.
4949 **/
4950 static void
4951 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4952 struct lpfc_acqe_fip *acqe_fip)
4953 {
4954 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4955 int rc;
4956 struct lpfc_vport *vport;
4957 struct lpfc_nodelist *ndlp;
4958 struct Scsi_Host *shost;
4959 int active_vlink_present;
4960 struct lpfc_vport **vports;
4961 int i;
4962
4963 phba->fc_eventTag = acqe_fip->event_tag;
4964 phba->fcoe_eventtag = acqe_fip->event_tag;
4965 switch (event_type) {
4966 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4967 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4968 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4969 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4970 LOG_DISCOVERY,
4971 "2546 New FCF event, evt_tag:x%x, "
4972 "index:x%x\n",
4973 acqe_fip->event_tag,
4974 acqe_fip->index);
4975 else
4976 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4977 LOG_DISCOVERY,
4978 "2788 FCF param modified event, "
4979 "evt_tag:x%x, index:x%x\n",
4980 acqe_fip->event_tag,
4981 acqe_fip->index);
4982 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4983 /*
4984 * During period of FCF discovery, read the FCF
4985 * table record indexed by the event to update
4986 * FCF roundrobin failover eligible FCF bmask.
4987 */
4988 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4989 LOG_DISCOVERY,
4990 "2779 Read FCF (x%x) for updating "
4991 "roundrobin FCF failover bmask\n",
4992 acqe_fip->index);
4993 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4994 }
4995
4996 /* If the FCF discovery is in progress, do nothing. */
4997 spin_lock_irq(&phba->hbalock);
4998 if (phba->hba_flag & FCF_TS_INPROG) {
4999 spin_unlock_irq(&phba->hbalock);
5000 break;
5001 }
5002 /* If fast FCF failover rescan event is pending, do nothing */
5003 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
5004 spin_unlock_irq(&phba->hbalock);
5005 break;
5006 }
5007
5008 /* If the FCF has been in discovered state, do nothing. */
5009 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5010 spin_unlock_irq(&phba->hbalock);
5011 break;
5012 }
5013 spin_unlock_irq(&phba->hbalock);
5014
5015 /* Otherwise, scan the entire FCF table and re-discover SAN */
5016 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5017 "2770 Start FCF table scan per async FCF "
5018 "event, evt_tag:x%x, index:x%x\n",
5019 acqe_fip->event_tag, acqe_fip->index);
5020 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5021 LPFC_FCOE_FCF_GET_FIRST);
5022 if (rc)
5023 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5024 "2547 Issue FCF scan read FCF mailbox "
5025 "command failed (x%x)\n", rc);
5026 break;
5027
5028 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5029 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5030 "2548 FCF Table full count 0x%x tag 0x%x\n",
5031 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5032 acqe_fip->event_tag);
5033 break;
5034
5035 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5036 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5037 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5038 "2549 FCF (x%x) disconnected from network, "
5039 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5040 /*
5041 * If we are in the middle of FCF failover process, clear
5042 * the corresponding FCF bit in the roundrobin bitmap.
5043 */
5044 spin_lock_irq(&phba->hbalock);
5045 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5046 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5047 spin_unlock_irq(&phba->hbalock);
5048 /* Update FLOGI FCF failover eligible FCF bmask */
5049 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5050 break;
5051 }
5052 spin_unlock_irq(&phba->hbalock);
5053
5054 /* If the event is not for currently used fcf do nothing */
5055 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5056 break;
5057
5058 /*
5059 * Otherwise, request the port to rediscover the entire FCF
5060 * table for a fast recovery from case that the current FCF
5061 * is no longer valid as we are not in the middle of FCF
5062 * failover process already.
5063 */
5064 spin_lock_irq(&phba->hbalock);
5065 /* Mark the fast failover process in progress */
5066 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5067 spin_unlock_irq(&phba->hbalock);
5068
5069 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5070 "2771 Start FCF fast failover process due to "
5071 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5072 "\n", acqe_fip->event_tag, acqe_fip->index);
5073 rc = lpfc_sli4_redisc_fcf_table(phba);
5074 if (rc) {
5075 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5076 LOG_DISCOVERY,
5077 "2772 Issue FCF rediscover mabilbox "
5078 "command failed, fail through to FCF "
5079 "dead event\n");
5080 spin_lock_irq(&phba->hbalock);
5081 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5082 spin_unlock_irq(&phba->hbalock);
5083 /*
5084 * Last resort will fail over by treating this
5085 * as a link down to FCF registration.
5086 */
5087 lpfc_sli4_fcf_dead_failthrough(phba);
5088 } else {
5089 /* Reset FCF roundrobin bmask for new discovery */
5090 lpfc_sli4_clear_fcf_rr_bmask(phba);
5091 /*
5092 * Handling fast FCF failover to a DEAD FCF event is
5093 * considered equalivant to receiving CVL to all vports.
5094 */
5095 lpfc_sli4_perform_all_vport_cvl(phba);
5096 }
5097 break;
5098 case LPFC_FIP_EVENT_TYPE_CVL:
5099 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5100 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5101 "2718 Clear Virtual Link Received for VPI 0x%x"
5102 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5103
5104 vport = lpfc_find_vport_by_vpid(phba,
5105 acqe_fip->index);
5106 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5107 if (!ndlp)
5108 break;
5109 active_vlink_present = 0;
5110
5111 vports = lpfc_create_vport_work_array(phba);
5112 if (vports) {
5113 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5114 i++) {
5115 if ((!(vports[i]->fc_flag &
5116 FC_VPORT_CVL_RCVD)) &&
5117 (vports[i]->port_state > LPFC_FDISC)) {
5118 active_vlink_present = 1;
5119 break;
5120 }
5121 }
5122 lpfc_destroy_vport_work_array(phba, vports);
5123 }
5124
5125 /*
5126 * Don't re-instantiate if vport is marked for deletion.
5127 * If we are here first then vport_delete is going to wait
5128 * for discovery to complete.
5129 */
5130 if (!(vport->load_flag & FC_UNLOADING) &&
5131 active_vlink_present) {
5132 /*
5133 * If there are other active VLinks present,
5134 * re-instantiate the Vlink using FDISC.
5135 */
5136 mod_timer(&ndlp->nlp_delayfunc,
5137 jiffies + msecs_to_jiffies(1000));
5138 shost = lpfc_shost_from_vport(vport);
5139 spin_lock_irq(shost->host_lock);
5140 ndlp->nlp_flag |= NLP_DELAY_TMO;
5141 spin_unlock_irq(shost->host_lock);
5142 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5143 vport->port_state = LPFC_FDISC;
5144 } else {
5145 /*
5146 * Otherwise, we request port to rediscover
5147 * the entire FCF table for a fast recovery
5148 * from possible case that the current FCF
5149 * is no longer valid if we are not already
5150 * in the FCF failover process.
5151 */
5152 spin_lock_irq(&phba->hbalock);
5153 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5154 spin_unlock_irq(&phba->hbalock);
5155 break;
5156 }
5157 /* Mark the fast failover process in progress */
5158 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5159 spin_unlock_irq(&phba->hbalock);
5160 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5161 LOG_DISCOVERY,
5162 "2773 Start FCF failover per CVL, "
5163 "evt_tag:x%x\n", acqe_fip->event_tag);
5164 rc = lpfc_sli4_redisc_fcf_table(phba);
5165 if (rc) {
5166 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5167 LOG_DISCOVERY,
5168 "2774 Issue FCF rediscover "
5169 "mabilbox command failed, "
5170 "through to CVL event\n");
5171 spin_lock_irq(&phba->hbalock);
5172 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5173 spin_unlock_irq(&phba->hbalock);
5174 /*
5175 * Last resort will be re-try on the
5176 * the current registered FCF entry.
5177 */
5178 lpfc_retry_pport_discovery(phba);
5179 } else
5180 /*
5181 * Reset FCF roundrobin bmask for new
5182 * discovery.
5183 */
5184 lpfc_sli4_clear_fcf_rr_bmask(phba);
5185 }
5186 break;
5187 default:
5188 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5189 "0288 Unknown FCoE event type 0x%x event tag "
5190 "0x%x\n", event_type, acqe_fip->event_tag);
5191 break;
5192 }
5193 }
5194
5195 /**
5196 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5197 * @phba: pointer to lpfc hba data structure.
5198 * @acqe_link: pointer to the async dcbx completion queue entry.
5199 *
5200 * This routine is to handle the SLI4 asynchronous dcbx event.
5201 **/
5202 static void
5203 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5204 struct lpfc_acqe_dcbx *acqe_dcbx)
5205 {
5206 phba->fc_eventTag = acqe_dcbx->event_tag;
5207 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5208 "0290 The SLI4 DCBX asynchronous event is not "
5209 "handled yet\n");
5210 }
5211
5212 /**
5213 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5214 * @phba: pointer to lpfc hba data structure.
5215 * @acqe_link: pointer to the async grp5 completion queue entry.
5216 *
5217 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5218 * is an asynchronous notified of a logical link speed change. The Port
5219 * reports the logical link speed in units of 10Mbps.
5220 **/
5221 static void
5222 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5223 struct lpfc_acqe_grp5 *acqe_grp5)
5224 {
5225 uint16_t prev_ll_spd;
5226
5227 phba->fc_eventTag = acqe_grp5->event_tag;
5228 phba->fcoe_eventtag = acqe_grp5->event_tag;
5229 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5230 phba->sli4_hba.link_state.logical_speed =
5231 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5232 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5233 "2789 GRP5 Async Event: Updating logical link speed "
5234 "from %dMbps to %dMbps\n", prev_ll_spd,
5235 phba->sli4_hba.link_state.logical_speed);
5236 }
5237
5238 /**
5239 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5240 * @phba: pointer to lpfc hba data structure.
5241 *
5242 * This routine is invoked by the worker thread to process all the pending
5243 * SLI4 asynchronous events.
5244 **/
5245 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5246 {
5247 struct lpfc_cq_event *cq_event;
5248
5249 /* First, declare the async event has been handled */
5250 spin_lock_irq(&phba->hbalock);
5251 phba->hba_flag &= ~ASYNC_EVENT;
5252 spin_unlock_irq(&phba->hbalock);
5253 /* Now, handle all the async events */
5254 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5255 /* Get the first event from the head of the event queue */
5256 spin_lock_irq(&phba->hbalock);
5257 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5258 cq_event, struct lpfc_cq_event, list);
5259 spin_unlock_irq(&phba->hbalock);
5260 /* Process the asynchronous event */
5261 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5262 case LPFC_TRAILER_CODE_LINK:
5263 lpfc_sli4_async_link_evt(phba,
5264 &cq_event->cqe.acqe_link);
5265 break;
5266 case LPFC_TRAILER_CODE_FCOE:
5267 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5268 break;
5269 case LPFC_TRAILER_CODE_DCBX:
5270 lpfc_sli4_async_dcbx_evt(phba,
5271 &cq_event->cqe.acqe_dcbx);
5272 break;
5273 case LPFC_TRAILER_CODE_GRP5:
5274 lpfc_sli4_async_grp5_evt(phba,
5275 &cq_event->cqe.acqe_grp5);
5276 break;
5277 case LPFC_TRAILER_CODE_FC:
5278 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5279 break;
5280 case LPFC_TRAILER_CODE_SLI:
5281 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5282 break;
5283 default:
5284 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5285 "1804 Invalid asynchrous event code: "
5286 "x%x\n", bf_get(lpfc_trailer_code,
5287 &cq_event->cqe.mcqe_cmpl));
5288 break;
5289 }
5290 /* Free the completion event processed to the free pool */
5291 lpfc_sli4_cq_event_release(phba, cq_event);
5292 }
5293 }
5294
5295 /**
5296 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5297 * @phba: pointer to lpfc hba data structure.
5298 *
5299 * This routine is invoked by the worker thread to process FCF table
5300 * rediscovery pending completion event.
5301 **/
5302 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5303 {
5304 int rc;
5305
5306 spin_lock_irq(&phba->hbalock);
5307 /* Clear FCF rediscovery timeout event */
5308 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5309 /* Clear driver fast failover FCF record flag */
5310 phba->fcf.failover_rec.flag = 0;
5311 /* Set state for FCF fast failover */
5312 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5313 spin_unlock_irq(&phba->hbalock);
5314
5315 /* Scan FCF table from the first entry to re-discover SAN */
5316 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5317 "2777 Start post-quiescent FCF table scan\n");
5318 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5319 if (rc)
5320 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5321 "2747 Issue FCF scan read FCF mailbox "
5322 "command failed 0x%x\n", rc);
5323 }
5324
5325 /**
5326 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5327 * @phba: pointer to lpfc hba data structure.
5328 * @dev_grp: The HBA PCI-Device group number.
5329 *
5330 * This routine is invoked to set up the per HBA PCI-Device group function
5331 * API jump table entries.
5332 *
5333 * Return: 0 if success, otherwise -ENODEV
5334 **/
5335 int
5336 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5337 {
5338 int rc;
5339
5340 /* Set up lpfc PCI-device group */
5341 phba->pci_dev_grp = dev_grp;
5342
5343 /* The LPFC_PCI_DEV_OC uses SLI4 */
5344 if (dev_grp == LPFC_PCI_DEV_OC)
5345 phba->sli_rev = LPFC_SLI_REV4;
5346
5347 /* Set up device INIT API function jump table */
5348 rc = lpfc_init_api_table_setup(phba, dev_grp);
5349 if (rc)
5350 return -ENODEV;
5351 /* Set up SCSI API function jump table */
5352 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5353 if (rc)
5354 return -ENODEV;
5355 /* Set up SLI API function jump table */
5356 rc = lpfc_sli_api_table_setup(phba, dev_grp);
5357 if (rc)
5358 return -ENODEV;
5359 /* Set up MBOX API function jump table */
5360 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5361 if (rc)
5362 return -ENODEV;
5363
5364 return 0;
5365 }
5366
5367 /**
5368 * lpfc_log_intr_mode - Log the active interrupt mode
5369 * @phba: pointer to lpfc hba data structure.
5370 * @intr_mode: active interrupt mode adopted.
5371 *
5372 * This routine it invoked to log the currently used active interrupt mode
5373 * to the device.
5374 **/
5375 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5376 {
5377 switch (intr_mode) {
5378 case 0:
5379 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5380 "0470 Enable INTx interrupt mode.\n");
5381 break;
5382 case 1:
5383 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5384 "0481 Enabled MSI interrupt mode.\n");
5385 break;
5386 case 2:
5387 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5388 "0480 Enabled MSI-X interrupt mode.\n");
5389 break;
5390 default:
5391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5392 "0482 Illegal interrupt mode.\n");
5393 break;
5394 }
5395 return;
5396 }
5397
5398 /**
5399 * lpfc_enable_pci_dev - Enable a generic PCI device.
5400 * @phba: pointer to lpfc hba data structure.
5401 *
5402 * This routine is invoked to enable the PCI device that is common to all
5403 * PCI devices.
5404 *
5405 * Return codes
5406 * 0 - successful
5407 * other values - error
5408 **/
5409 static int
5410 lpfc_enable_pci_dev(struct lpfc_hba *phba)
5411 {
5412 struct pci_dev *pdev;
5413
5414 /* Obtain PCI device reference */
5415 if (!phba->pcidev)
5416 goto out_error;
5417 else
5418 pdev = phba->pcidev;
5419 /* Enable PCI device */
5420 if (pci_enable_device_mem(pdev))
5421 goto out_error;
5422 /* Request PCI resource for the device */
5423 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
5424 goto out_disable_device;
5425 /* Set up device as PCI master and save state for EEH */
5426 pci_set_master(pdev);
5427 pci_try_set_mwi(pdev);
5428 pci_save_state(pdev);
5429
5430 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
5431 if (pci_is_pcie(pdev))
5432 pdev->needs_freset = 1;
5433
5434 return 0;
5435
5436 out_disable_device:
5437 pci_disable_device(pdev);
5438 out_error:
5439 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5440 "1401 Failed to enable pci device\n");
5441 return -ENODEV;
5442 }
5443
5444 /**
5445 * lpfc_disable_pci_dev - Disable a generic PCI device.
5446 * @phba: pointer to lpfc hba data structure.
5447 *
5448 * This routine is invoked to disable the PCI device that is common to all
5449 * PCI devices.
5450 **/
5451 static void
5452 lpfc_disable_pci_dev(struct lpfc_hba *phba)
5453 {
5454 struct pci_dev *pdev;
5455
5456 /* Obtain PCI device reference */
5457 if (!phba->pcidev)
5458 return;
5459 else
5460 pdev = phba->pcidev;
5461 /* Release PCI resource and disable PCI device */
5462 pci_release_mem_regions(pdev);
5463 pci_disable_device(pdev);
5464
5465 return;
5466 }
5467
5468 /**
5469 * lpfc_reset_hba - Reset a hba
5470 * @phba: pointer to lpfc hba data structure.
5471 *
5472 * This routine is invoked to reset a hba device. It brings the HBA
5473 * offline, performs a board restart, and then brings the board back
5474 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
5475 * on outstanding mailbox commands.
5476 **/
5477 void
5478 lpfc_reset_hba(struct lpfc_hba *phba)
5479 {
5480 /* If resets are disabled then set error state and return. */
5481 if (!phba->cfg_enable_hba_reset) {
5482 phba->link_state = LPFC_HBA_ERROR;
5483 return;
5484 }
5485 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
5486 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
5487 else
5488 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
5489 lpfc_offline(phba);
5490 lpfc_sli_brdrestart(phba);
5491 lpfc_online(phba);
5492 lpfc_unblock_mgmt_io(phba);
5493 }
5494
5495 /**
5496 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
5497 * @phba: pointer to lpfc hba data structure.
5498 *
5499 * This function enables the PCI SR-IOV virtual functions to a physical
5500 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5501 * enable the number of virtual functions to the physical function. As
5502 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5503 * API call does not considered as an error condition for most of the device.
5504 **/
5505 uint16_t
5506 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
5507 {
5508 struct pci_dev *pdev = phba->pcidev;
5509 uint16_t nr_virtfn;
5510 int pos;
5511
5512 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
5513 if (pos == 0)
5514 return 0;
5515
5516 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
5517 return nr_virtfn;
5518 }
5519
5520 /**
5521 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
5522 * @phba: pointer to lpfc hba data structure.
5523 * @nr_vfn: number of virtual functions to be enabled.
5524 *
5525 * This function enables the PCI SR-IOV virtual functions to a physical
5526 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5527 * enable the number of virtual functions to the physical function. As
5528 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5529 * API call does not considered as an error condition for most of the device.
5530 **/
5531 int
5532 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
5533 {
5534 struct pci_dev *pdev = phba->pcidev;
5535 uint16_t max_nr_vfn;
5536 int rc;
5537
5538 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
5539 if (nr_vfn > max_nr_vfn) {
5540 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5541 "3057 Requested vfs (%d) greater than "
5542 "supported vfs (%d)", nr_vfn, max_nr_vfn);
5543 return -EINVAL;
5544 }
5545
5546 rc = pci_enable_sriov(pdev, nr_vfn);
5547 if (rc) {
5548 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5549 "2806 Failed to enable sriov on this device "
5550 "with vfn number nr_vf:%d, rc:%d\n",
5551 nr_vfn, rc);
5552 } else
5553 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5554 "2807 Successful enable sriov on this device "
5555 "with vfn number nr_vf:%d\n", nr_vfn);
5556 return rc;
5557 }
5558
5559 /**
5560 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5561 * @phba: pointer to lpfc hba data structure.
5562 *
5563 * This routine is invoked to set up the driver internal resources before the
5564 * device specific resource setup to support the HBA device it attached to.
5565 *
5566 * Return codes
5567 * 0 - successful
5568 * other values - error
5569 **/
5570 static int
5571 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5572 {
5573 struct lpfc_sli *psli = &phba->sli;
5574
5575 /*
5576 * Driver resources common to all SLI revisions
5577 */
5578 atomic_set(&phba->fast_event_count, 0);
5579 spin_lock_init(&phba->hbalock);
5580
5581 /* Initialize ndlp management spinlock */
5582 spin_lock_init(&phba->ndlp_lock);
5583
5584 INIT_LIST_HEAD(&phba->port_list);
5585 INIT_LIST_HEAD(&phba->work_list);
5586 init_waitqueue_head(&phba->wait_4_mlo_m_q);
5587
5588 /* Initialize the wait queue head for the kernel thread */
5589 init_waitqueue_head(&phba->work_waitq);
5590
5591 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5592 "1403 Protocols supported %s %s %s\n",
5593 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
5594 "SCSI" : " "),
5595 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
5596 "NVME" : " "),
5597 (phba->nvmet_support ? "NVMET" : " "));
5598
5599 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5600 /* Initialize the scsi buffer list used by driver for scsi IO */
5601 spin_lock_init(&phba->scsi_buf_list_get_lock);
5602 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5603 spin_lock_init(&phba->scsi_buf_list_put_lock);
5604 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5605 }
5606
5607 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
5608 (phba->nvmet_support == 0)) {
5609 /* Initialize the NVME buffer list used by driver for NVME IO */
5610 spin_lock_init(&phba->nvme_buf_list_get_lock);
5611 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get);
5612 spin_lock_init(&phba->nvme_buf_list_put_lock);
5613 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
5614 }
5615
5616 /* Initialize the fabric iocb list */
5617 INIT_LIST_HEAD(&phba->fabric_iocb_list);
5618
5619 /* Initialize list to save ELS buffers */
5620 INIT_LIST_HEAD(&phba->elsbuf);
5621
5622 /* Initialize FCF connection rec list */
5623 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5624
5625 /* Initialize OAS configuration list */
5626 spin_lock_init(&phba->devicelock);
5627 INIT_LIST_HEAD(&phba->luns);
5628
5629 /* MBOX heartbeat timer */
5630 timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
5631 /* Fabric block timer */
5632 timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
5633 /* EA polling mode timer */
5634 timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
5635 /* Heartbeat timer */
5636 timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
5637
5638 return 0;
5639 }
5640
5641 /**
5642 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
5643 * @phba: pointer to lpfc hba data structure.
5644 *
5645 * This routine is invoked to set up the driver internal resources specific to
5646 * support the SLI-3 HBA device it attached to.
5647 *
5648 * Return codes
5649 * 0 - successful
5650 * other values - error
5651 **/
5652 static int
5653 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
5654 {
5655 int rc;
5656
5657 /*
5658 * Initialize timers used by driver
5659 */
5660
5661 /* FCP polling mode timer */
5662 timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
5663
5664 /* Host attention work mask setup */
5665 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
5666 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
5667
5668 /* Get all the module params for configuring this host */
5669 lpfc_get_cfgparam(phba);
5670 /* Set up phase-1 common device driver resources */
5671
5672 rc = lpfc_setup_driver_resource_phase1(phba);
5673 if (rc)
5674 return -ENODEV;
5675
5676 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
5677 phba->menlo_flag |= HBA_MENLO_SUPPORT;
5678 /* check for menlo minimum sg count */
5679 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
5680 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
5681 }
5682
5683 if (!phba->sli.sli3_ring)
5684 phba->sli.sli3_ring = kzalloc(LPFC_SLI3_MAX_RING *
5685 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5686 if (!phba->sli.sli3_ring)
5687 return -ENOMEM;
5688
5689 /*
5690 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5691 * used to create the sg_dma_buf_pool must be dynamically calculated.
5692 */
5693
5694 /* Initialize the host templates the configured values. */
5695 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5696 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5697 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5698
5699 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5700 if (phba->cfg_enable_bg) {
5701 /*
5702 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5703 * the FCP rsp, and a BDE for each. Sice we have no control
5704 * over how many protection data segments the SCSI Layer
5705 * will hand us (ie: there could be one for every block
5706 * in the IO), we just allocate enough BDEs to accomidate
5707 * our max amount and we need to limit lpfc_sg_seg_cnt to
5708 * minimize the risk of running out.
5709 */
5710 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5711 sizeof(struct fcp_rsp) +
5712 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5713
5714 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5715 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5716
5717 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5718 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5719 } else {
5720 /*
5721 * The scsi_buf for a regular I/O will hold the FCP cmnd,
5722 * the FCP rsp, a BDE for each, and a BDE for up to
5723 * cfg_sg_seg_cnt data segments.
5724 */
5725 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5726 sizeof(struct fcp_rsp) +
5727 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5728
5729 /* Total BDEs in BPL for scsi_sg_list */
5730 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5731 }
5732
5733 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5734 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5735 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5736 phba->cfg_total_seg_cnt);
5737
5738 phba->max_vpi = LPFC_MAX_VPI;
5739 /* This will be set to correct value after config_port mbox */
5740 phba->max_vports = 0;
5741
5742 /*
5743 * Initialize the SLI Layer to run with lpfc HBAs.
5744 */
5745 lpfc_sli_setup(phba);
5746 lpfc_sli_queue_init(phba);
5747
5748 /* Allocate device driver memory */
5749 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5750 return -ENOMEM;
5751
5752 /*
5753 * Enable sr-iov virtual functions if supported and configured
5754 * through the module parameter.
5755 */
5756 if (phba->cfg_sriov_nr_virtfn > 0) {
5757 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5758 phba->cfg_sriov_nr_virtfn);
5759 if (rc) {
5760 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5761 "2808 Requested number of SR-IOV "
5762 "virtual functions (%d) is not "
5763 "supported\n",
5764 phba->cfg_sriov_nr_virtfn);
5765 phba->cfg_sriov_nr_virtfn = 0;
5766 }
5767 }
5768
5769 return 0;
5770 }
5771
5772 /**
5773 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5774 * @phba: pointer to lpfc hba data structure.
5775 *
5776 * This routine is invoked to unset the driver internal resources set up
5777 * specific for supporting the SLI-3 HBA device it attached to.
5778 **/
5779 static void
5780 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5781 {
5782 /* Free device driver memory allocated */
5783 lpfc_mem_free_all(phba);
5784
5785 return;
5786 }
5787
5788 /**
5789 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5790 * @phba: pointer to lpfc hba data structure.
5791 *
5792 * This routine is invoked to set up the driver internal resources specific to
5793 * support the SLI-4 HBA device it attached to.
5794 *
5795 * Return codes
5796 * 0 - successful
5797 * other values - error
5798 **/
5799 static int
5800 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5801 {
5802 LPFC_MBOXQ_t *mboxq;
5803 MAILBOX_t *mb;
5804 int rc, i, max_buf_size;
5805 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5806 struct lpfc_mqe *mqe;
5807 int longs;
5808 int fof_vectors = 0;
5809 uint64_t wwn;
5810
5811 phba->sli4_hba.num_online_cpu = num_online_cpus();
5812 phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
5813 phba->sli4_hba.curr_disp_cpu = 0;
5814
5815 /* Get all the module params for configuring this host */
5816 lpfc_get_cfgparam(phba);
5817
5818 /* Set up phase-1 common device driver resources */
5819 rc = lpfc_setup_driver_resource_phase1(phba);
5820 if (rc)
5821 return -ENODEV;
5822
5823 /* Before proceed, wait for POST done and device ready */
5824 rc = lpfc_sli4_post_status_check(phba);
5825 if (rc)
5826 return -ENODEV;
5827
5828 /*
5829 * Initialize timers used by driver
5830 */
5831
5832 timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
5833
5834 /* FCF rediscover timer */
5835 timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
5836
5837 /*
5838 * Control structure for handling external multi-buffer mailbox
5839 * command pass-through.
5840 */
5841 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5842 sizeof(struct lpfc_mbox_ext_buf_ctx));
5843 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5844
5845 phba->max_vpi = LPFC_MAX_VPI;
5846
5847 /* This will be set to correct value after the read_config mbox */
5848 phba->max_vports = 0;
5849
5850 /* Program the default value of vlan_id and fc_map */
5851 phba->valid_vlan = 0;
5852 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5853 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5854 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5855
5856 /*
5857 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5858 * we will associate a new ring, for each EQ/CQ/WQ tuple.
5859 * The WQ create will allocate the ring.
5860 */
5861
5862 /*
5863 * It doesn't matter what family our adapter is in, we are
5864 * limited to 2 Pages, 512 SGEs, for our SGL.
5865 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5866 */
5867 max_buf_size = (2 * SLI4_PAGE_SIZE);
5868 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5869 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5870
5871 /*
5872 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
5873 * used to create the sg_dma_buf_pool must be calculated.
5874 */
5875 if (phba->cfg_enable_bg) {
5876 /*
5877 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
5878 * the FCP rsp, and a SGE. Sice we have no control
5879 * over how many protection segments the SCSI Layer
5880 * will hand us (ie: there could be one for every block
5881 * in the IO), just allocate enough SGEs to accomidate
5882 * our max amount and we need to limit lpfc_sg_seg_cnt
5883 * to minimize the risk of running out.
5884 */
5885 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5886 sizeof(struct fcp_rsp) + max_buf_size;
5887
5888 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5889 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5890
5891 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5892 phba->cfg_sg_seg_cnt =
5893 LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5894 } else {
5895 /*
5896 * The scsi_buf for a regular I/O holds the FCP cmnd,
5897 * the FCP rsp, a SGE for each, and a SGE for up to
5898 * cfg_sg_seg_cnt data segments.
5899 */
5900 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5901 sizeof(struct fcp_rsp) +
5902 ((phba->cfg_sg_seg_cnt + 2) *
5903 sizeof(struct sli4_sge));
5904
5905 /* Total SGEs for scsi_sg_list */
5906 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5907
5908 /*
5909 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only
5910 * need to post 1 page for the SGL.
5911 */
5912 }
5913
5914 /* Initialize the host templates with the updated values. */
5915 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5916 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5917 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5918
5919 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
5920 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5921 else
5922 phba->cfg_sg_dma_buf_size =
5923 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5924
5925 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5926 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5927 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5928 phba->cfg_total_seg_cnt);
5929
5930 /* Initialize buffer queue management fields */
5931 INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
5932 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5933 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5934
5935 /*
5936 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5937 */
5938 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5939 /* Initialize the Abort scsi buffer list used by driver */
5940 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5941 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5942 }
5943
5944 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
5945 /* Initialize the Abort nvme buffer list used by driver */
5946 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock);
5947 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
5948 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
5949 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
5950
5951 /* Fast-path XRI aborted CQ Event work queue list */
5952 INIT_LIST_HEAD(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue);
5953 }
5954
5955 /* This abort list used by worker thread */
5956 spin_lock_init(&phba->sli4_hba.sgl_list_lock);
5957 spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
5958
5959 /*
5960 * Initialize driver internal slow-path work queues
5961 */
5962
5963 /* Driver internel slow-path CQ Event pool */
5964 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5965 /* Response IOCB work queue list */
5966 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5967 /* Asynchronous event CQ Event work queue list */
5968 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5969 /* Fast-path XRI aborted CQ Event work queue list */
5970 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5971 /* Slow-path XRI aborted CQ Event work queue list */
5972 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5973 /* Receive queue CQ Event work queue list */
5974 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5975
5976 /* Initialize extent block lists. */
5977 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5978 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5979 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5980 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5981
5982 /* Initialize mboxq lists. If the early init routines fail
5983 * these lists need to be correctly initialized.
5984 */
5985 INIT_LIST_HEAD(&phba->sli.mboxq);
5986 INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
5987
5988 /* initialize optic_state to 0xFF */
5989 phba->sli4_hba.lnk_info.optic_state = 0xff;
5990
5991 /* Allocate device driver memory */
5992 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5993 if (rc)
5994 return -ENOMEM;
5995
5996 /* IF Type 2 ports get initialized now. */
5997 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5998 LPFC_SLI_INTF_IF_TYPE_2) {
5999 rc = lpfc_pci_function_reset(phba);
6000 if (unlikely(rc)) {
6001 rc = -ENODEV;
6002 goto out_free_mem;
6003 }
6004 phba->temp_sensor_support = 1;
6005 }
6006
6007 /* Create the bootstrap mailbox command */
6008 rc = lpfc_create_bootstrap_mbox(phba);
6009 if (unlikely(rc))
6010 goto out_free_mem;
6011
6012 /* Set up the host's endian order with the device. */
6013 rc = lpfc_setup_endian_order(phba);
6014 if (unlikely(rc))
6015 goto out_free_bsmbx;
6016
6017 /* Set up the hba's configuration parameters. */
6018 rc = lpfc_sli4_read_config(phba);
6019 if (unlikely(rc))
6020 goto out_free_bsmbx;
6021 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6022 if (unlikely(rc))
6023 goto out_free_bsmbx;
6024
6025 /* IF Type 0 ports get initialized now. */
6026 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6027 LPFC_SLI_INTF_IF_TYPE_0) {
6028 rc = lpfc_pci_function_reset(phba);
6029 if (unlikely(rc))
6030 goto out_free_bsmbx;
6031 }
6032
6033 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6034 GFP_KERNEL);
6035 if (!mboxq) {
6036 rc = -ENOMEM;
6037 goto out_free_bsmbx;
6038 }
6039
6040 /* Check for NVMET being configured */
6041 phba->nvmet_support = 0;
6042 if (lpfc_enable_nvmet_cnt) {
6043
6044 /* First get WWN of HBA instance */
6045 lpfc_read_nv(phba, mboxq);
6046 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6047 if (rc != MBX_SUCCESS) {
6048 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6049 "6016 Mailbox failed , mbxCmd x%x "
6050 "READ_NV, mbxStatus x%x\n",
6051 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6052 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6053 mempool_free(mboxq, phba->mbox_mem_pool);
6054 rc = -EIO;
6055 goto out_free_bsmbx;
6056 }
6057 mb = &mboxq->u.mb;
6058 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6059 sizeof(uint64_t));
6060 wwn = cpu_to_be64(wwn);
6061 phba->sli4_hba.wwnn.u.name = wwn;
6062 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6063 sizeof(uint64_t));
6064 /* wwn is WWPN of HBA instance */
6065 wwn = cpu_to_be64(wwn);
6066 phba->sli4_hba.wwpn.u.name = wwn;
6067
6068 /* Check to see if it matches any module parameter */
6069 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6070 if (wwn == lpfc_enable_nvmet[i]) {
6071 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6072 if (lpfc_nvmet_mem_alloc(phba))
6073 break;
6074
6075 phba->nvmet_support = 1; /* a match */
6076
6077 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6078 "6017 NVME Target %016llx\n",
6079 wwn);
6080 #else
6081 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6082 "6021 Can't enable NVME Target."
6083 " NVME_TARGET_FC infrastructure"
6084 " is not in kernel\n");
6085 #endif
6086 break;
6087 }
6088 }
6089 }
6090
6091 lpfc_nvme_mod_param_dep(phba);
6092
6093 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6094 lpfc_supported_pages(mboxq);
6095 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6096 if (!rc) {
6097 mqe = &mboxq->u.mqe;
6098 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6099 LPFC_MAX_SUPPORTED_PAGES);
6100 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6101 switch (pn_page[i]) {
6102 case LPFC_SLI4_PARAMETERS:
6103 phba->sli4_hba.pc_sli4_params.supported = 1;
6104 break;
6105 default:
6106 break;
6107 }
6108 }
6109 /* Read the port's SLI4 Parameters capabilities if supported. */
6110 if (phba->sli4_hba.pc_sli4_params.supported)
6111 rc = lpfc_pc_sli4_params_get(phba, mboxq);
6112 if (rc) {
6113 mempool_free(mboxq, phba->mbox_mem_pool);
6114 rc = -EIO;
6115 goto out_free_bsmbx;
6116 }
6117 }
6118
6119 /*
6120 * Get sli4 parameters that override parameters from Port capabilities.
6121 * If this call fails, it isn't critical unless the SLI4 parameters come
6122 * back in conflict.
6123 */
6124 rc = lpfc_get_sli4_parameters(phba, mboxq);
6125 if (rc) {
6126 if (phba->sli4_hba.extents_in_use &&
6127 phba->sli4_hba.rpi_hdrs_in_use) {
6128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6129 "2999 Unsupported SLI4 Parameters "
6130 "Extents and RPI headers enabled.\n");
6131 }
6132 mempool_free(mboxq, phba->mbox_mem_pool);
6133 rc = -EIO;
6134 goto out_free_bsmbx;
6135 }
6136
6137 mempool_free(mboxq, phba->mbox_mem_pool);
6138
6139 /* Verify OAS is supported */
6140 lpfc_sli4_oas_verify(phba);
6141 if (phba->cfg_fof)
6142 fof_vectors = 1;
6143
6144 /* Verify all the SLI4 queues */
6145 rc = lpfc_sli4_queue_verify(phba);
6146 if (rc)
6147 goto out_free_bsmbx;
6148
6149 /* Create driver internal CQE event pool */
6150 rc = lpfc_sli4_cq_event_pool_create(phba);
6151 if (rc)
6152 goto out_free_bsmbx;
6153
6154 /* Initialize sgl lists per host */
6155 lpfc_init_sgl_list(phba);
6156
6157 /* Allocate and initialize active sgl array */
6158 rc = lpfc_init_active_sgl_array(phba);
6159 if (rc) {
6160 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6161 "1430 Failed to initialize sgl list.\n");
6162 goto out_destroy_cq_event_pool;
6163 }
6164 rc = lpfc_sli4_init_rpi_hdrs(phba);
6165 if (rc) {
6166 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6167 "1432 Failed to initialize rpi headers.\n");
6168 goto out_free_active_sgl;
6169 }
6170
6171 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6172 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6173 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
6174 GFP_KERNEL);
6175 if (!phba->fcf.fcf_rr_bmask) {
6176 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6177 "2759 Failed allocate memory for FCF round "
6178 "robin failover bmask\n");
6179 rc = -ENOMEM;
6180 goto out_remove_rpi_hdrs;
6181 }
6182
6183 phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs,
6184 sizeof(struct lpfc_hba_eq_hdl),
6185 GFP_KERNEL);
6186 if (!phba->sli4_hba.hba_eq_hdl) {
6187 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6188 "2572 Failed allocate memory for "
6189 "fast-path per-EQ handle array\n");
6190 rc = -ENOMEM;
6191 goto out_free_fcf_rr_bmask;
6192 }
6193
6194 phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu,
6195 sizeof(struct lpfc_vector_map_info),
6196 GFP_KERNEL);
6197 if (!phba->sli4_hba.cpu_map) {
6198 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6199 "3327 Failed allocate memory for msi-x "
6200 "interrupt vector mapping\n");
6201 rc = -ENOMEM;
6202 goto out_free_hba_eq_hdl;
6203 }
6204 if (lpfc_used_cpu == NULL) {
6205 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t),
6206 GFP_KERNEL);
6207 if (!lpfc_used_cpu) {
6208 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6209 "3335 Failed allocate memory for msi-x "
6210 "interrupt vector mapping\n");
6211 kfree(phba->sli4_hba.cpu_map);
6212 rc = -ENOMEM;
6213 goto out_free_hba_eq_hdl;
6214 }
6215 for (i = 0; i < lpfc_present_cpu; i++)
6216 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
6217 }
6218
6219 /*
6220 * Enable sr-iov virtual functions if supported and configured
6221 * through the module parameter.
6222 */
6223 if (phba->cfg_sriov_nr_virtfn > 0) {
6224 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6225 phba->cfg_sriov_nr_virtfn);
6226 if (rc) {
6227 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6228 "3020 Requested number of SR-IOV "
6229 "virtual functions (%d) is not "
6230 "supported\n",
6231 phba->cfg_sriov_nr_virtfn);
6232 phba->cfg_sriov_nr_virtfn = 0;
6233 }
6234 }
6235
6236 return 0;
6237
6238 out_free_hba_eq_hdl:
6239 kfree(phba->sli4_hba.hba_eq_hdl);
6240 out_free_fcf_rr_bmask:
6241 kfree(phba->fcf.fcf_rr_bmask);
6242 out_remove_rpi_hdrs:
6243 lpfc_sli4_remove_rpi_hdrs(phba);
6244 out_free_active_sgl:
6245 lpfc_free_active_sgl(phba);
6246 out_destroy_cq_event_pool:
6247 lpfc_sli4_cq_event_pool_destroy(phba);
6248 out_free_bsmbx:
6249 lpfc_destroy_bootstrap_mbox(phba);
6250 out_free_mem:
6251 lpfc_mem_free(phba);
6252 return rc;
6253 }
6254
6255 /**
6256 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6257 * @phba: pointer to lpfc hba data structure.
6258 *
6259 * This routine is invoked to unset the driver internal resources set up
6260 * specific for supporting the SLI-4 HBA device it attached to.
6261 **/
6262 static void
6263 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6264 {
6265 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6266
6267 /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6268 kfree(phba->sli4_hba.cpu_map);
6269 phba->sli4_hba.num_present_cpu = 0;
6270 phba->sli4_hba.num_online_cpu = 0;
6271 phba->sli4_hba.curr_disp_cpu = 0;
6272
6273 /* Free memory allocated for fast-path work queue handles */
6274 kfree(phba->sli4_hba.hba_eq_hdl);
6275
6276 /* Free the allocated rpi headers. */
6277 lpfc_sli4_remove_rpi_hdrs(phba);
6278 lpfc_sli4_remove_rpis(phba);
6279
6280 /* Free eligible FCF index bmask */
6281 kfree(phba->fcf.fcf_rr_bmask);
6282
6283 /* Free the ELS sgl list */
6284 lpfc_free_active_sgl(phba);
6285 lpfc_free_els_sgl_list(phba);
6286 lpfc_free_nvmet_sgl_list(phba);
6287
6288 /* Free the completion queue EQ event pool */
6289 lpfc_sli4_cq_event_release_all(phba);
6290 lpfc_sli4_cq_event_pool_destroy(phba);
6291
6292 /* Release resource identifiers. */
6293 lpfc_sli4_dealloc_resource_identifiers(phba);
6294
6295 /* Free the bsmbx region. */
6296 lpfc_destroy_bootstrap_mbox(phba);
6297
6298 /* Free the SLI Layer memory with SLI4 HBAs */
6299 lpfc_mem_free_all(phba);
6300
6301 /* Free the current connect table */
6302 list_for_each_entry_safe(conn_entry, next_conn_entry,
6303 &phba->fcf_conn_rec_list, list) {
6304 list_del_init(&conn_entry->list);
6305 kfree(conn_entry);
6306 }
6307
6308 return;
6309 }
6310
6311 /**
6312 * lpfc_init_api_table_setup - Set up init api function jump table
6313 * @phba: The hba struct for which this call is being executed.
6314 * @dev_grp: The HBA PCI-Device group number.
6315 *
6316 * This routine sets up the device INIT interface API function jump table
6317 * in @phba struct.
6318 *
6319 * Returns: 0 - success, -ENODEV - failure.
6320 **/
6321 int
6322 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6323 {
6324 phba->lpfc_hba_init_link = lpfc_hba_init_link;
6325 phba->lpfc_hba_down_link = lpfc_hba_down_link;
6326 phba->lpfc_selective_reset = lpfc_selective_reset;
6327 switch (dev_grp) {
6328 case LPFC_PCI_DEV_LP:
6329 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
6330 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
6331 phba->lpfc_stop_port = lpfc_stop_port_s3;
6332 break;
6333 case LPFC_PCI_DEV_OC:
6334 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
6335 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
6336 phba->lpfc_stop_port = lpfc_stop_port_s4;
6337 break;
6338 default:
6339 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6340 "1431 Invalid HBA PCI-device group: 0x%x\n",
6341 dev_grp);
6342 return -ENODEV;
6343 break;
6344 }
6345 return 0;
6346 }
6347
6348 /**
6349 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
6350 * @phba: pointer to lpfc hba data structure.
6351 *
6352 * This routine is invoked to set up the driver internal resources after the
6353 * device specific resource setup to support the HBA device it attached to.
6354 *
6355 * Return codes
6356 * 0 - successful
6357 * other values - error
6358 **/
6359 static int
6360 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
6361 {
6362 int error;
6363
6364 /* Startup the kernel thread for this host adapter. */
6365 phba->worker_thread = kthread_run(lpfc_do_work, phba,
6366 "lpfc_worker_%d", phba->brd_no);
6367 if (IS_ERR(phba->worker_thread)) {
6368 error = PTR_ERR(phba->worker_thread);
6369 return error;
6370 }
6371
6372 /* workqueue for deferred irq use */
6373 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6374
6375 return 0;
6376 }
6377
6378 /**
6379 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
6380 * @phba: pointer to lpfc hba data structure.
6381 *
6382 * This routine is invoked to unset the driver internal resources set up after
6383 * the device specific resource setup for supporting the HBA device it
6384 * attached to.
6385 **/
6386 static void
6387 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
6388 {
6389 if (phba->wq) {
6390 flush_workqueue(phba->wq);
6391 destroy_workqueue(phba->wq);
6392 phba->wq = NULL;
6393 }
6394
6395 /* Stop kernel worker thread */
6396 kthread_stop(phba->worker_thread);
6397 }
6398
6399 /**
6400 * lpfc_free_iocb_list - Free iocb list.
6401 * @phba: pointer to lpfc hba data structure.
6402 *
6403 * This routine is invoked to free the driver's IOCB list and memory.
6404 **/
6405 void
6406 lpfc_free_iocb_list(struct lpfc_hba *phba)
6407 {
6408 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
6409
6410 spin_lock_irq(&phba->hbalock);
6411 list_for_each_entry_safe(iocbq_entry, iocbq_next,
6412 &phba->lpfc_iocb_list, list) {
6413 list_del(&iocbq_entry->list);
6414 kfree(iocbq_entry);
6415 phba->total_iocbq_bufs--;
6416 }
6417 spin_unlock_irq(&phba->hbalock);
6418
6419 return;
6420 }
6421
6422 /**
6423 * lpfc_init_iocb_list - Allocate and initialize iocb list.
6424 * @phba: pointer to lpfc hba data structure.
6425 *
6426 * This routine is invoked to allocate and initizlize the driver's IOCB
6427 * list and set up the IOCB tag array accordingly.
6428 *
6429 * Return codes
6430 * 0 - successful
6431 * other values - error
6432 **/
6433 int
6434 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
6435 {
6436 struct lpfc_iocbq *iocbq_entry = NULL;
6437 uint16_t iotag;
6438 int i;
6439
6440 /* Initialize and populate the iocb list per host. */
6441 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
6442 for (i = 0; i < iocb_count; i++) {
6443 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
6444 if (iocbq_entry == NULL) {
6445 printk(KERN_ERR "%s: only allocated %d iocbs of "
6446 "expected %d count. Unloading driver.\n",
6447 __func__, i, LPFC_IOCB_LIST_CNT);
6448 goto out_free_iocbq;
6449 }
6450
6451 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
6452 if (iotag == 0) {
6453 kfree(iocbq_entry);
6454 printk(KERN_ERR "%s: failed to allocate IOTAG. "
6455 "Unloading driver.\n", __func__);
6456 goto out_free_iocbq;
6457 }
6458 iocbq_entry->sli4_lxritag = NO_XRI;
6459 iocbq_entry->sli4_xritag = NO_XRI;
6460
6461 spin_lock_irq(&phba->hbalock);
6462 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
6463 phba->total_iocbq_bufs++;
6464 spin_unlock_irq(&phba->hbalock);
6465 }
6466
6467 return 0;
6468
6469 out_free_iocbq:
6470 lpfc_free_iocb_list(phba);
6471
6472 return -ENOMEM;
6473 }
6474
6475 /**
6476 * lpfc_free_sgl_list - Free a given sgl list.
6477 * @phba: pointer to lpfc hba data structure.
6478 * @sglq_list: pointer to the head of sgl list.
6479 *
6480 * This routine is invoked to free a give sgl list and memory.
6481 **/
6482 void
6483 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
6484 {
6485 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6486
6487 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
6488 list_del(&sglq_entry->list);
6489 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
6490 kfree(sglq_entry);
6491 }
6492 }
6493
6494 /**
6495 * lpfc_free_els_sgl_list - Free els sgl list.
6496 * @phba: pointer to lpfc hba data structure.
6497 *
6498 * This routine is invoked to free the driver's els sgl list and memory.
6499 **/
6500 static void
6501 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
6502 {
6503 LIST_HEAD(sglq_list);
6504
6505 /* Retrieve all els sgls from driver list */
6506 spin_lock_irq(&phba->hbalock);
6507 spin_lock(&phba->sli4_hba.sgl_list_lock);
6508 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
6509 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6510 spin_unlock_irq(&phba->hbalock);
6511
6512 /* Now free the sgl list */
6513 lpfc_free_sgl_list(phba, &sglq_list);
6514 }
6515
6516 /**
6517 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
6518 * @phba: pointer to lpfc hba data structure.
6519 *
6520 * This routine is invoked to free the driver's nvmet sgl list and memory.
6521 **/
6522 static void
6523 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
6524 {
6525 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6526 LIST_HEAD(sglq_list);
6527
6528 /* Retrieve all nvmet sgls from driver list */
6529 spin_lock_irq(&phba->hbalock);
6530 spin_lock(&phba->sli4_hba.sgl_list_lock);
6531 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
6532 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6533 spin_unlock_irq(&phba->hbalock);
6534
6535 /* Now free the sgl list */
6536 list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
6537 list_del(&sglq_entry->list);
6538 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
6539 kfree(sglq_entry);
6540 }
6541
6542 /* Update the nvmet_xri_cnt to reflect no current sgls.
6543 * The next initialization cycle sets the count and allocates
6544 * the sgls over again.
6545 */
6546 phba->sli4_hba.nvmet_xri_cnt = 0;
6547 }
6548
6549 /**
6550 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
6551 * @phba: pointer to lpfc hba data structure.
6552 *
6553 * This routine is invoked to allocate the driver's active sgl memory.
6554 * This array will hold the sglq_entry's for active IOs.
6555 **/
6556 static int
6557 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
6558 {
6559 int size;
6560 size = sizeof(struct lpfc_sglq *);
6561 size *= phba->sli4_hba.max_cfg_param.max_xri;
6562
6563 phba->sli4_hba.lpfc_sglq_active_list =
6564 kzalloc(size, GFP_KERNEL);
6565 if (!phba->sli4_hba.lpfc_sglq_active_list)
6566 return -ENOMEM;
6567 return 0;
6568 }
6569
6570 /**
6571 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
6572 * @phba: pointer to lpfc hba data structure.
6573 *
6574 * This routine is invoked to walk through the array of active sglq entries
6575 * and free all of the resources.
6576 * This is just a place holder for now.
6577 **/
6578 static void
6579 lpfc_free_active_sgl(struct lpfc_hba *phba)
6580 {
6581 kfree(phba->sli4_hba.lpfc_sglq_active_list);
6582 }
6583
6584 /**
6585 * lpfc_init_sgl_list - Allocate and initialize sgl list.
6586 * @phba: pointer to lpfc hba data structure.
6587 *
6588 * This routine is invoked to allocate and initizlize the driver's sgl
6589 * list and set up the sgl xritag tag array accordingly.
6590 *
6591 **/
6592 static void
6593 lpfc_init_sgl_list(struct lpfc_hba *phba)
6594 {
6595 /* Initialize and populate the sglq list per host/VF. */
6596 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
6597 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
6598 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
6599 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6600
6601 /* els xri-sgl book keeping */
6602 phba->sli4_hba.els_xri_cnt = 0;
6603
6604 /* scsi xri-buffer book keeping */
6605 phba->sli4_hba.scsi_xri_cnt = 0;
6606
6607 /* nvme xri-buffer book keeping */
6608 phba->sli4_hba.nvme_xri_cnt = 0;
6609 }
6610
6611 /**
6612 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
6613 * @phba: pointer to lpfc hba data structure.
6614 *
6615 * This routine is invoked to post rpi header templates to the
6616 * port for those SLI4 ports that do not support extents. This routine
6617 * posts a PAGE_SIZE memory region to the port to hold up to
6618 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
6619 * and should be called only when interrupts are disabled.
6620 *
6621 * Return codes
6622 * 0 - successful
6623 * -ERROR - otherwise.
6624 **/
6625 int
6626 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
6627 {
6628 int rc = 0;
6629 struct lpfc_rpi_hdr *rpi_hdr;
6630
6631 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
6632 if (!phba->sli4_hba.rpi_hdrs_in_use)
6633 return rc;
6634 if (phba->sli4_hba.extents_in_use)
6635 return -EIO;
6636
6637 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
6638 if (!rpi_hdr) {
6639 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6640 "0391 Error during rpi post operation\n");
6641 lpfc_sli4_remove_rpis(phba);
6642 rc = -ENODEV;
6643 }
6644
6645 return rc;
6646 }
6647
6648 /**
6649 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
6650 * @phba: pointer to lpfc hba data structure.
6651 *
6652 * This routine is invoked to allocate a single 4KB memory region to
6653 * support rpis and stores them in the phba. This single region
6654 * provides support for up to 64 rpis. The region is used globally
6655 * by the device.
6656 *
6657 * Returns:
6658 * A valid rpi hdr on success.
6659 * A NULL pointer on any failure.
6660 **/
6661 struct lpfc_rpi_hdr *
6662 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
6663 {
6664 uint16_t rpi_limit, curr_rpi_range;
6665 struct lpfc_dmabuf *dmabuf;
6666 struct lpfc_rpi_hdr *rpi_hdr;
6667
6668 /*
6669 * If the SLI4 port supports extents, posting the rpi header isn't
6670 * required. Set the expected maximum count and let the actual value
6671 * get set when extents are fully allocated.
6672 */
6673 if (!phba->sli4_hba.rpi_hdrs_in_use)
6674 return NULL;
6675 if (phba->sli4_hba.extents_in_use)
6676 return NULL;
6677
6678 /* The limit on the logical index is just the max_rpi count. */
6679 rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
6680
6681 spin_lock_irq(&phba->hbalock);
6682 /*
6683 * Establish the starting RPI in this header block. The starting
6684 * rpi is normalized to a zero base because the physical rpi is
6685 * port based.
6686 */
6687 curr_rpi_range = phba->sli4_hba.next_rpi;
6688 spin_unlock_irq(&phba->hbalock);
6689
6690 /* Reached full RPI range */
6691 if (curr_rpi_range == rpi_limit)
6692 return NULL;
6693
6694 /*
6695 * First allocate the protocol header region for the port. The
6696 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
6697 */
6698 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6699 if (!dmabuf)
6700 return NULL;
6701
6702 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
6703 LPFC_HDR_TEMPLATE_SIZE,
6704 &dmabuf->phys, GFP_KERNEL);
6705 if (!dmabuf->virt) {
6706 rpi_hdr = NULL;
6707 goto err_free_dmabuf;
6708 }
6709
6710 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6711 rpi_hdr = NULL;
6712 goto err_free_coherent;
6713 }
6714
6715 /* Save the rpi header data for cleanup later. */
6716 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6717 if (!rpi_hdr)
6718 goto err_free_coherent;
6719
6720 rpi_hdr->dmabuf = dmabuf;
6721 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6722 rpi_hdr->page_count = 1;
6723 spin_lock_irq(&phba->hbalock);
6724
6725 /* The rpi_hdr stores the logical index only. */
6726 rpi_hdr->start_rpi = curr_rpi_range;
6727 rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
6728 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6729
6730 spin_unlock_irq(&phba->hbalock);
6731 return rpi_hdr;
6732
6733 err_free_coherent:
6734 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6735 dmabuf->virt, dmabuf->phys);
6736 err_free_dmabuf:
6737 kfree(dmabuf);
6738 return NULL;
6739 }
6740
6741 /**
6742 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6743 * @phba: pointer to lpfc hba data structure.
6744 *
6745 * This routine is invoked to remove all memory resources allocated
6746 * to support rpis for SLI4 ports not supporting extents. This routine
6747 * presumes the caller has released all rpis consumed by fabric or port
6748 * logins and is prepared to have the header pages removed.
6749 **/
6750 void
6751 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6752 {
6753 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6754
6755 if (!phba->sli4_hba.rpi_hdrs_in_use)
6756 goto exit;
6757
6758 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6759 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6760 list_del(&rpi_hdr->list);
6761 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6762 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6763 kfree(rpi_hdr->dmabuf);
6764 kfree(rpi_hdr);
6765 }
6766 exit:
6767 /* There are no rpis available to the port now. */
6768 phba->sli4_hba.next_rpi = 0;
6769 }
6770
6771 /**
6772 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6773 * @pdev: pointer to pci device data structure.
6774 *
6775 * This routine is invoked to allocate the driver hba data structure for an
6776 * HBA device. If the allocation is successful, the phba reference to the
6777 * PCI device data structure is set.
6778 *
6779 * Return codes
6780 * pointer to @phba - successful
6781 * NULL - error
6782 **/
6783 static struct lpfc_hba *
6784 lpfc_hba_alloc(struct pci_dev *pdev)
6785 {
6786 struct lpfc_hba *phba;
6787
6788 /* Allocate memory for HBA structure */
6789 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6790 if (!phba) {
6791 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6792 return NULL;
6793 }
6794
6795 /* Set reference to PCI device in HBA structure */
6796 phba->pcidev = pdev;
6797
6798 /* Assign an unused board number */
6799 phba->brd_no = lpfc_get_instance();
6800 if (phba->brd_no < 0) {
6801 kfree(phba);
6802 return NULL;
6803 }
6804 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
6805
6806 spin_lock_init(&phba->ct_ev_lock);
6807 INIT_LIST_HEAD(&phba->ct_ev_waiters);
6808
6809 return phba;
6810 }
6811
6812 /**
6813 * lpfc_hba_free - Free driver hba data structure with a device.
6814 * @phba: pointer to lpfc hba data structure.
6815 *
6816 * This routine is invoked to free the driver hba data structure with an
6817 * HBA device.
6818 **/
6819 static void
6820 lpfc_hba_free(struct lpfc_hba *phba)
6821 {
6822 /* Release the driver assigned board number */
6823 idr_remove(&lpfc_hba_index, phba->brd_no);
6824
6825 /* Free memory allocated with sli3 rings */
6826 kfree(phba->sli.sli3_ring);
6827 phba->sli.sli3_ring = NULL;
6828
6829 kfree(phba);
6830 return;
6831 }
6832
6833 /**
6834 * lpfc_create_shost - Create hba physical port with associated scsi host.
6835 * @phba: pointer to lpfc hba data structure.
6836 *
6837 * This routine is invoked to create HBA physical port and associate a SCSI
6838 * host with it.
6839 *
6840 * Return codes
6841 * 0 - successful
6842 * other values - error
6843 **/
6844 static int
6845 lpfc_create_shost(struct lpfc_hba *phba)
6846 {
6847 struct lpfc_vport *vport;
6848 struct Scsi_Host *shost;
6849
6850 /* Initialize HBA FC structure */
6851 phba->fc_edtov = FF_DEF_EDTOV;
6852 phba->fc_ratov = FF_DEF_RATOV;
6853 phba->fc_altov = FF_DEF_ALTOV;
6854 phba->fc_arbtov = FF_DEF_ARBTOV;
6855
6856 atomic_set(&phba->sdev_cnt, 0);
6857 atomic_set(&phba->fc4ScsiInputRequests, 0);
6858 atomic_set(&phba->fc4ScsiOutputRequests, 0);
6859 atomic_set(&phba->fc4ScsiControlRequests, 0);
6860 atomic_set(&phba->fc4ScsiIoCmpls, 0);
6861 atomic_set(&phba->fc4NvmeInputRequests, 0);
6862 atomic_set(&phba->fc4NvmeOutputRequests, 0);
6863 atomic_set(&phba->fc4NvmeControlRequests, 0);
6864 atomic_set(&phba->fc4NvmeIoCmpls, 0);
6865 atomic_set(&phba->fc4NvmeLsRequests, 0);
6866 atomic_set(&phba->fc4NvmeLsCmpls, 0);
6867 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6868 if (!vport)
6869 return -ENODEV;
6870
6871 shost = lpfc_shost_from_vport(vport);
6872 phba->pport = vport;
6873
6874 if (phba->nvmet_support) {
6875 /* Only 1 vport (pport) will support NVME target */
6876 if (phba->txrdy_payload_pool == NULL) {
6877 phba->txrdy_payload_pool = dma_pool_create(
6878 "txrdy_pool", &phba->pcidev->dev,
6879 TXRDY_PAYLOAD_LEN, 16, 0);
6880 if (phba->txrdy_payload_pool) {
6881 phba->targetport = NULL;
6882 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
6883 lpfc_printf_log(phba, KERN_INFO,
6884 LOG_INIT | LOG_NVME_DISC,
6885 "6076 NVME Target Found\n");
6886 }
6887 }
6888 }
6889
6890 lpfc_debugfs_initialize(vport);
6891 /* Put reference to SCSI host to driver's device private data */
6892 pci_set_drvdata(phba->pcidev, shost);
6893
6894 /*
6895 * At this point we are fully registered with PSA. In addition,
6896 * any initial discovery should be completed.
6897 */
6898 vport->load_flag |= FC_ALLOW_FDMI;
6899 if (phba->cfg_enable_SmartSAN ||
6900 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
6901
6902 /* Setup appropriate attribute masks */
6903 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6904 if (phba->cfg_enable_SmartSAN)
6905 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6906 else
6907 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6908 }
6909 return 0;
6910 }
6911
6912 /**
6913 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6914 * @phba: pointer to lpfc hba data structure.
6915 *
6916 * This routine is invoked to destroy HBA physical port and the associated
6917 * SCSI host.
6918 **/
6919 static void
6920 lpfc_destroy_shost(struct lpfc_hba *phba)
6921 {
6922 struct lpfc_vport *vport = phba->pport;
6923
6924 /* Destroy physical port that associated with the SCSI host */
6925 destroy_port(vport);
6926
6927 return;
6928 }
6929
6930 /**
6931 * lpfc_setup_bg - Setup Block guard structures and debug areas.
6932 * @phba: pointer to lpfc hba data structure.
6933 * @shost: the shost to be used to detect Block guard settings.
6934 *
6935 * This routine sets up the local Block guard protocol settings for @shost.
6936 * This routine also allocates memory for debugging bg buffers.
6937 **/
6938 static void
6939 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6940 {
6941 uint32_t old_mask;
6942 uint32_t old_guard;
6943
6944 int pagecnt = 10;
6945 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6946 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6947 "1478 Registering BlockGuard with the "
6948 "SCSI layer\n");
6949
6950 old_mask = phba->cfg_prot_mask;
6951 old_guard = phba->cfg_prot_guard;
6952
6953 /* Only allow supported values */
6954 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6955 SHOST_DIX_TYPE0_PROTECTION |
6956 SHOST_DIX_TYPE1_PROTECTION);
6957 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
6958 SHOST_DIX_GUARD_CRC);
6959
6960 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6961 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6962 phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6963
6964 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6965 if ((old_mask != phba->cfg_prot_mask) ||
6966 (old_guard != phba->cfg_prot_guard))
6967 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6968 "1475 Registering BlockGuard with the "
6969 "SCSI layer: mask %d guard %d\n",
6970 phba->cfg_prot_mask,
6971 phba->cfg_prot_guard);
6972
6973 scsi_host_set_prot(shost, phba->cfg_prot_mask);
6974 scsi_host_set_guard(shost, phba->cfg_prot_guard);
6975 } else
6976 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6977 "1479 Not Registering BlockGuard with the SCSI "
6978 "layer, Bad protection parameters: %d %d\n",
6979 old_mask, old_guard);
6980 }
6981
6982 if (!_dump_buf_data) {
6983 while (pagecnt) {
6984 spin_lock_init(&_dump_buf_lock);
6985 _dump_buf_data =
6986 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6987 if (_dump_buf_data) {
6988 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6989 "9043 BLKGRD: allocated %d pages for "
6990 "_dump_buf_data at 0x%p\n",
6991 (1 << pagecnt), _dump_buf_data);
6992 _dump_buf_data_order = pagecnt;
6993 memset(_dump_buf_data, 0,
6994 ((1 << PAGE_SHIFT) << pagecnt));
6995 break;
6996 } else
6997 --pagecnt;
6998 }
6999 if (!_dump_buf_data_order)
7000 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7001 "9044 BLKGRD: ERROR unable to allocate "
7002 "memory for hexdump\n");
7003 } else
7004 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7005 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
7006 "\n", _dump_buf_data);
7007 if (!_dump_buf_dif) {
7008 while (pagecnt) {
7009 _dump_buf_dif =
7010 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7011 if (_dump_buf_dif) {
7012 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7013 "9046 BLKGRD: allocated %d pages for "
7014 "_dump_buf_dif at 0x%p\n",
7015 (1 << pagecnt), _dump_buf_dif);
7016 _dump_buf_dif_order = pagecnt;
7017 memset(_dump_buf_dif, 0,
7018 ((1 << PAGE_SHIFT) << pagecnt));
7019 break;
7020 } else
7021 --pagecnt;
7022 }
7023 if (!_dump_buf_dif_order)
7024 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7025 "9047 BLKGRD: ERROR unable to allocate "
7026 "memory for hexdump\n");
7027 } else
7028 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7029 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
7030 _dump_buf_dif);
7031 }
7032
7033 /**
7034 * lpfc_post_init_setup - Perform necessary device post initialization setup.
7035 * @phba: pointer to lpfc hba data structure.
7036 *
7037 * This routine is invoked to perform all the necessary post initialization
7038 * setup for the device.
7039 **/
7040 static void
7041 lpfc_post_init_setup(struct lpfc_hba *phba)
7042 {
7043 struct Scsi_Host *shost;
7044 struct lpfc_adapter_event_header adapter_event;
7045
7046 /* Get the default values for Model Name and Description */
7047 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7048
7049 /*
7050 * hba setup may have changed the hba_queue_depth so we need to
7051 * adjust the value of can_queue.
7052 */
7053 shost = pci_get_drvdata(phba->pcidev);
7054 shost->can_queue = phba->cfg_hba_queue_depth - 10;
7055 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
7056 lpfc_setup_bg(phba, shost);
7057
7058 lpfc_host_attrib_init(shost);
7059
7060 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7061 spin_lock_irq(shost->host_lock);
7062 lpfc_poll_start_timer(phba);
7063 spin_unlock_irq(shost->host_lock);
7064 }
7065
7066 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7067 "0428 Perform SCSI scan\n");
7068 /* Send board arrival event to upper layer */
7069 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7070 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7071 fc_host_post_vendor_event(shost, fc_get_event_number(),
7072 sizeof(adapter_event),
7073 (char *) &adapter_event,
7074 LPFC_NL_VENDOR_ID);
7075 return;
7076 }
7077
7078 /**
7079 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7080 * @phba: pointer to lpfc hba data structure.
7081 *
7082 * This routine is invoked to set up the PCI device memory space for device
7083 * with SLI-3 interface spec.
7084 *
7085 * Return codes
7086 * 0 - successful
7087 * other values - error
7088 **/
7089 static int
7090 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7091 {
7092 struct pci_dev *pdev;
7093 unsigned long bar0map_len, bar2map_len;
7094 int i, hbq_count;
7095 void *ptr;
7096 int error = -ENODEV;
7097
7098 /* Obtain PCI device reference */
7099 if (!phba->pcidev)
7100 return error;
7101 else
7102 pdev = phba->pcidev;
7103
7104 /* Set the device DMA mask size */
7105 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7106 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7107 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7108 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7109 return error;
7110 }
7111 }
7112
7113 /* Get the bus address of Bar0 and Bar2 and the number of bytes
7114 * required by each mapping.
7115 */
7116 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7117 bar0map_len = pci_resource_len(pdev, 0);
7118
7119 phba->pci_bar2_map = pci_resource_start(pdev, 2);
7120 bar2map_len = pci_resource_len(pdev, 2);
7121
7122 /* Map HBA SLIM to a kernel virtual address. */
7123 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7124 if (!phba->slim_memmap_p) {
7125 dev_printk(KERN_ERR, &pdev->dev,
7126 "ioremap failed for SLIM memory.\n");
7127 goto out;
7128 }
7129
7130 /* Map HBA Control Registers to a kernel virtual address. */
7131 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7132 if (!phba->ctrl_regs_memmap_p) {
7133 dev_printk(KERN_ERR, &pdev->dev,
7134 "ioremap failed for HBA control registers.\n");
7135 goto out_iounmap_slim;
7136 }
7137
7138 /* Allocate memory for SLI-2 structures */
7139 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7140 &phba->slim2p.phys, GFP_KERNEL);
7141 if (!phba->slim2p.virt)
7142 goto out_iounmap;
7143
7144 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7145 phba->mbox_ext = (phba->slim2p.virt +
7146 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7147 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7148 phba->IOCBs = (phba->slim2p.virt +
7149 offsetof(struct lpfc_sli2_slim, IOCBs));
7150
7151 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7152 lpfc_sli_hbq_size(),
7153 &phba->hbqslimp.phys,
7154 GFP_KERNEL);
7155 if (!phba->hbqslimp.virt)
7156 goto out_free_slim;
7157
7158 hbq_count = lpfc_sli_hbq_count();
7159 ptr = phba->hbqslimp.virt;
7160 for (i = 0; i < hbq_count; ++i) {
7161 phba->hbqs[i].hbq_virt = ptr;
7162 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7163 ptr += (lpfc_hbq_defs[i]->entry_count *
7164 sizeof(struct lpfc_hbq_entry));
7165 }
7166 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7167 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7168
7169 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7170
7171 phba->MBslimaddr = phba->slim_memmap_p;
7172 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7173 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7174 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7175 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7176
7177 return 0;
7178
7179 out_free_slim:
7180 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7181 phba->slim2p.virt, phba->slim2p.phys);
7182 out_iounmap:
7183 iounmap(phba->ctrl_regs_memmap_p);
7184 out_iounmap_slim:
7185 iounmap(phba->slim_memmap_p);
7186 out:
7187 return error;
7188 }
7189
7190 /**
7191 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7192 * @phba: pointer to lpfc hba data structure.
7193 *
7194 * This routine is invoked to unset the PCI device memory space for device
7195 * with SLI-3 interface spec.
7196 **/
7197 static void
7198 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7199 {
7200 struct pci_dev *pdev;
7201
7202 /* Obtain PCI device reference */
7203 if (!phba->pcidev)
7204 return;
7205 else
7206 pdev = phba->pcidev;
7207
7208 /* Free coherent DMA memory allocated */
7209 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7210 phba->hbqslimp.virt, phba->hbqslimp.phys);
7211 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7212 phba->slim2p.virt, phba->slim2p.phys);
7213
7214 /* I/O memory unmap */
7215 iounmap(phba->ctrl_regs_memmap_p);
7216 iounmap(phba->slim_memmap_p);
7217
7218 return;
7219 }
7220
7221 /**
7222 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7223 * @phba: pointer to lpfc hba data structure.
7224 *
7225 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7226 * done and check status.
7227 *
7228 * Return 0 if successful, otherwise -ENODEV.
7229 **/
7230 int
7231 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7232 {
7233 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7234 struct lpfc_register reg_data;
7235 int i, port_error = 0;
7236 uint32_t if_type;
7237
7238 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7239 memset(&reg_data, 0, sizeof(reg_data));
7240 if (!phba->sli4_hba.PSMPHRregaddr)
7241 return -ENODEV;
7242
7243 /* Wait up to 30 seconds for the SLI Port POST done and ready */
7244 for (i = 0; i < 3000; i++) {
7245 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7246 &portsmphr_reg.word0) ||
7247 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7248 /* Port has a fatal POST error, break out */
7249 port_error = -ENODEV;
7250 break;
7251 }
7252 if (LPFC_POST_STAGE_PORT_READY ==
7253 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7254 break;
7255 msleep(10);
7256 }
7257
7258 /*
7259 * If there was a port error during POST, then don't proceed with
7260 * other register reads as the data may not be valid. Just exit.
7261 */
7262 if (port_error) {
7263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7264 "1408 Port Failed POST - portsmphr=0x%x, "
7265 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7266 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7267 portsmphr_reg.word0,
7268 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7269 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7270 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7271 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7272 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7273 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7274 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7275 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7276 } else {
7277 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7278 "2534 Device Info: SLIFamily=0x%x, "
7279 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7280 "SLIHint_2=0x%x, FT=0x%x\n",
7281 bf_get(lpfc_sli_intf_sli_family,
7282 &phba->sli4_hba.sli_intf),
7283 bf_get(lpfc_sli_intf_slirev,
7284 &phba->sli4_hba.sli_intf),
7285 bf_get(lpfc_sli_intf_if_type,
7286 &phba->sli4_hba.sli_intf),
7287 bf_get(lpfc_sli_intf_sli_hint1,
7288 &phba->sli4_hba.sli_intf),
7289 bf_get(lpfc_sli_intf_sli_hint2,
7290 &phba->sli4_hba.sli_intf),
7291 bf_get(lpfc_sli_intf_func_type,
7292 &phba->sli4_hba.sli_intf));
7293 /*
7294 * Check for other Port errors during the initialization
7295 * process. Fail the load if the port did not come up
7296 * correctly.
7297 */
7298 if_type = bf_get(lpfc_sli_intf_if_type,
7299 &phba->sli4_hba.sli_intf);
7300 switch (if_type) {
7301 case LPFC_SLI_INTF_IF_TYPE_0:
7302 phba->sli4_hba.ue_mask_lo =
7303 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7304 phba->sli4_hba.ue_mask_hi =
7305 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7306 uerrlo_reg.word0 =
7307 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7308 uerrhi_reg.word0 =
7309 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7310 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7311 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7312 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7313 "1422 Unrecoverable Error "
7314 "Detected during POST "
7315 "uerr_lo_reg=0x%x, "
7316 "uerr_hi_reg=0x%x, "
7317 "ue_mask_lo_reg=0x%x, "
7318 "ue_mask_hi_reg=0x%x\n",
7319 uerrlo_reg.word0,
7320 uerrhi_reg.word0,
7321 phba->sli4_hba.ue_mask_lo,
7322 phba->sli4_hba.ue_mask_hi);
7323 port_error = -ENODEV;
7324 }
7325 break;
7326 case LPFC_SLI_INTF_IF_TYPE_2:
7327 /* Final checks. The port status should be clean. */
7328 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7329 &reg_data.word0) ||
7330 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7331 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7332 phba->work_status[0] =
7333 readl(phba->sli4_hba.u.if_type2.
7334 ERR1regaddr);
7335 phba->work_status[1] =
7336 readl(phba->sli4_hba.u.if_type2.
7337 ERR2regaddr);
7338 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7339 "2888 Unrecoverable port error "
7340 "following POST: port status reg "
7341 "0x%x, port_smphr reg 0x%x, "
7342 "error 1=0x%x, error 2=0x%x\n",
7343 reg_data.word0,
7344 portsmphr_reg.word0,
7345 phba->work_status[0],
7346 phba->work_status[1]);
7347 port_error = -ENODEV;
7348 }
7349 break;
7350 case LPFC_SLI_INTF_IF_TYPE_1:
7351 default:
7352 break;
7353 }
7354 }
7355 return port_error;
7356 }
7357
7358 /**
7359 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7360 * @phba: pointer to lpfc hba data structure.
7361 * @if_type: The SLI4 interface type getting configured.
7362 *
7363 * This routine is invoked to set up SLI4 BAR0 PCI config space register
7364 * memory map.
7365 **/
7366 static void
7367 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7368 {
7369 switch (if_type) {
7370 case LPFC_SLI_INTF_IF_TYPE_0:
7371 phba->sli4_hba.u.if_type0.UERRLOregaddr =
7372 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7373 phba->sli4_hba.u.if_type0.UERRHIregaddr =
7374 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7375 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7376 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7377 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7378 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7379 phba->sli4_hba.SLIINTFregaddr =
7380 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7381 break;
7382 case LPFC_SLI_INTF_IF_TYPE_2:
7383 phba->sli4_hba.u.if_type2.EQDregaddr =
7384 phba->sli4_hba.conf_regs_memmap_p +
7385 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7386 phba->sli4_hba.u.if_type2.ERR1regaddr =
7387 phba->sli4_hba.conf_regs_memmap_p +
7388 LPFC_CTL_PORT_ER1_OFFSET;
7389 phba->sli4_hba.u.if_type2.ERR2regaddr =
7390 phba->sli4_hba.conf_regs_memmap_p +
7391 LPFC_CTL_PORT_ER2_OFFSET;
7392 phba->sli4_hba.u.if_type2.CTRLregaddr =
7393 phba->sli4_hba.conf_regs_memmap_p +
7394 LPFC_CTL_PORT_CTL_OFFSET;
7395 phba->sli4_hba.u.if_type2.STATUSregaddr =
7396 phba->sli4_hba.conf_regs_memmap_p +
7397 LPFC_CTL_PORT_STA_OFFSET;
7398 phba->sli4_hba.SLIINTFregaddr =
7399 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7400 phba->sli4_hba.PSMPHRregaddr =
7401 phba->sli4_hba.conf_regs_memmap_p +
7402 LPFC_CTL_PORT_SEM_OFFSET;
7403 phba->sli4_hba.RQDBregaddr =
7404 phba->sli4_hba.conf_regs_memmap_p +
7405 LPFC_ULP0_RQ_DOORBELL;
7406 phba->sli4_hba.WQDBregaddr =
7407 phba->sli4_hba.conf_regs_memmap_p +
7408 LPFC_ULP0_WQ_DOORBELL;
7409 phba->sli4_hba.EQCQDBregaddr =
7410 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
7411 phba->sli4_hba.MQDBregaddr =
7412 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
7413 phba->sli4_hba.BMBXregaddr =
7414 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7415 break;
7416 case LPFC_SLI_INTF_IF_TYPE_1:
7417 default:
7418 dev_printk(KERN_ERR, &phba->pcidev->dev,
7419 "FATAL - unsupported SLI4 interface type - %d\n",
7420 if_type);
7421 break;
7422 }
7423 }
7424
7425 /**
7426 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
7427 * @phba: pointer to lpfc hba data structure.
7428 *
7429 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
7430 * memory map.
7431 **/
7432 static void
7433 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
7434 {
7435 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7436 LPFC_SLIPORT_IF0_SMPHR;
7437 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7438 LPFC_HST_ISR0;
7439 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7440 LPFC_HST_IMR0;
7441 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7442 LPFC_HST_ISCR0;
7443 }
7444
7445 /**
7446 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
7447 * @phba: pointer to lpfc hba data structure.
7448 * @vf: virtual function number
7449 *
7450 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
7451 * based on the given viftual function number, @vf.
7452 *
7453 * Return 0 if successful, otherwise -ENODEV.
7454 **/
7455 static int
7456 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
7457 {
7458 if (vf > LPFC_VIR_FUNC_MAX)
7459 return -ENODEV;
7460
7461 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7462 vf * LPFC_VFR_PAGE_SIZE +
7463 LPFC_ULP0_RQ_DOORBELL);
7464 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7465 vf * LPFC_VFR_PAGE_SIZE +
7466 LPFC_ULP0_WQ_DOORBELL);
7467 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7468 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
7469 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7470 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
7471 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7472 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
7473 return 0;
7474 }
7475
7476 /**
7477 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
7478 * @phba: pointer to lpfc hba data structure.
7479 *
7480 * This routine is invoked to create the bootstrap mailbox
7481 * region consistent with the SLI-4 interface spec. This
7482 * routine allocates all memory necessary to communicate
7483 * mailbox commands to the port and sets up all alignment
7484 * needs. No locks are expected to be held when calling
7485 * this routine.
7486 *
7487 * Return codes
7488 * 0 - successful
7489 * -ENOMEM - could not allocated memory.
7490 **/
7491 static int
7492 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
7493 {
7494 uint32_t bmbx_size;
7495 struct lpfc_dmabuf *dmabuf;
7496 struct dma_address *dma_address;
7497 uint32_t pa_addr;
7498 uint64_t phys_addr;
7499
7500 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7501 if (!dmabuf)
7502 return -ENOMEM;
7503
7504 /*
7505 * The bootstrap mailbox region is comprised of 2 parts
7506 * plus an alignment restriction of 16 bytes.
7507 */
7508 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
7509 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
7510 &dmabuf->phys, GFP_KERNEL);
7511 if (!dmabuf->virt) {
7512 kfree(dmabuf);
7513 return -ENOMEM;
7514 }
7515
7516 /*
7517 * Initialize the bootstrap mailbox pointers now so that the register
7518 * operations are simple later. The mailbox dma address is required
7519 * to be 16-byte aligned. Also align the virtual memory as each
7520 * maibox is copied into the bmbx mailbox region before issuing the
7521 * command to the port.
7522 */
7523 phba->sli4_hba.bmbx.dmabuf = dmabuf;
7524 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
7525
7526 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
7527 LPFC_ALIGN_16_BYTE);
7528 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
7529 LPFC_ALIGN_16_BYTE);
7530
7531 /*
7532 * Set the high and low physical addresses now. The SLI4 alignment
7533 * requirement is 16 bytes and the mailbox is posted to the port
7534 * as two 30-bit addresses. The other data is a bit marking whether
7535 * the 30-bit address is the high or low address.
7536 * Upcast bmbx aphys to 64bits so shift instruction compiles
7537 * clean on 32 bit machines.
7538 */
7539 dma_address = &phba->sli4_hba.bmbx.dma_address;
7540 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
7541 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
7542 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
7543 LPFC_BMBX_BIT1_ADDR_HI);
7544
7545 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
7546 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
7547 LPFC_BMBX_BIT1_ADDR_LO);
7548 return 0;
7549 }
7550
7551 /**
7552 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
7553 * @phba: pointer to lpfc hba data structure.
7554 *
7555 * This routine is invoked to teardown the bootstrap mailbox
7556 * region and release all host resources. This routine requires
7557 * the caller to ensure all mailbox commands recovered, no
7558 * additional mailbox comands are sent, and interrupts are disabled
7559 * before calling this routine.
7560 *
7561 **/
7562 static void
7563 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
7564 {
7565 dma_free_coherent(&phba->pcidev->dev,
7566 phba->sli4_hba.bmbx.bmbx_size,
7567 phba->sli4_hba.bmbx.dmabuf->virt,
7568 phba->sli4_hba.bmbx.dmabuf->phys);
7569
7570 kfree(phba->sli4_hba.bmbx.dmabuf);
7571 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
7572 }
7573
7574 /**
7575 * lpfc_sli4_read_config - Get the config parameters.
7576 * @phba: pointer to lpfc hba data structure.
7577 *
7578 * This routine is invoked to read the configuration parameters from the HBA.
7579 * The configuration parameters are used to set the base and maximum values
7580 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
7581 * allocation for the port.
7582 *
7583 * Return codes
7584 * 0 - successful
7585 * -ENOMEM - No available memory
7586 * -EIO - The mailbox failed to complete successfully.
7587 **/
7588 int
7589 lpfc_sli4_read_config(struct lpfc_hba *phba)
7590 {
7591 LPFC_MBOXQ_t *pmb;
7592 struct lpfc_mbx_read_config *rd_config;
7593 union lpfc_sli4_cfg_shdr *shdr;
7594 uint32_t shdr_status, shdr_add_status;
7595 struct lpfc_mbx_get_func_cfg *get_func_cfg;
7596 struct lpfc_rsrc_desc_fcfcoe *desc;
7597 char *pdesc_0;
7598 uint16_t forced_link_speed;
7599 uint32_t if_type;
7600 int length, i, rc = 0, rc2;
7601
7602 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7603 if (!pmb) {
7604 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7605 "2011 Unable to allocate memory for issuing "
7606 "SLI_CONFIG_SPECIAL mailbox command\n");
7607 return -ENOMEM;
7608 }
7609
7610 lpfc_read_config(phba, pmb);
7611
7612 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7613 if (rc != MBX_SUCCESS) {
7614 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7615 "2012 Mailbox failed , mbxCmd x%x "
7616 "READ_CONFIG, mbxStatus x%x\n",
7617 bf_get(lpfc_mqe_command, &pmb->u.mqe),
7618 bf_get(lpfc_mqe_status, &pmb->u.mqe));
7619 rc = -EIO;
7620 } else {
7621 rd_config = &pmb->u.mqe.un.rd_config;
7622 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
7623 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
7624 phba->sli4_hba.lnk_info.lnk_tp =
7625 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
7626 phba->sli4_hba.lnk_info.lnk_no =
7627 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
7628 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7629 "3081 lnk_type:%d, lnk_numb:%d\n",
7630 phba->sli4_hba.lnk_info.lnk_tp,
7631 phba->sli4_hba.lnk_info.lnk_no);
7632 } else
7633 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7634 "3082 Mailbox (x%x) returned ldv:x0\n",
7635 bf_get(lpfc_mqe_command, &pmb->u.mqe));
7636 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
7637 phba->bbcredit_support = 1;
7638 phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
7639 }
7640
7641 phba->sli4_hba.extents_in_use =
7642 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
7643 phba->sli4_hba.max_cfg_param.max_xri =
7644 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
7645 phba->sli4_hba.max_cfg_param.xri_base =
7646 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
7647 phba->sli4_hba.max_cfg_param.max_vpi =
7648 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
7649 phba->sli4_hba.max_cfg_param.vpi_base =
7650 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
7651 phba->sli4_hba.max_cfg_param.max_rpi =
7652 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
7653 phba->sli4_hba.max_cfg_param.rpi_base =
7654 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
7655 phba->sli4_hba.max_cfg_param.max_vfi =
7656 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
7657 phba->sli4_hba.max_cfg_param.vfi_base =
7658 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
7659 phba->sli4_hba.max_cfg_param.max_fcfi =
7660 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
7661 phba->sli4_hba.max_cfg_param.max_eq =
7662 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
7663 phba->sli4_hba.max_cfg_param.max_rq =
7664 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
7665 phba->sli4_hba.max_cfg_param.max_wq =
7666 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
7667 phba->sli4_hba.max_cfg_param.max_cq =
7668 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
7669 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
7670 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
7671 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
7672 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
7673 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
7674 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
7675 phba->max_vports = phba->max_vpi;
7676 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7677 "2003 cfg params Extents? %d "
7678 "XRI(B:%d M:%d), "
7679 "VPI(B:%d M:%d) "
7680 "VFI(B:%d M:%d) "
7681 "RPI(B:%d M:%d) "
7682 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
7683 phba->sli4_hba.extents_in_use,
7684 phba->sli4_hba.max_cfg_param.xri_base,
7685 phba->sli4_hba.max_cfg_param.max_xri,
7686 phba->sli4_hba.max_cfg_param.vpi_base,
7687 phba->sli4_hba.max_cfg_param.max_vpi,
7688 phba->sli4_hba.max_cfg_param.vfi_base,
7689 phba->sli4_hba.max_cfg_param.max_vfi,
7690 phba->sli4_hba.max_cfg_param.rpi_base,
7691 phba->sli4_hba.max_cfg_param.max_rpi,
7692 phba->sli4_hba.max_cfg_param.max_fcfi,
7693 phba->sli4_hba.max_cfg_param.max_eq,
7694 phba->sli4_hba.max_cfg_param.max_cq,
7695 phba->sli4_hba.max_cfg_param.max_wq,
7696 phba->sli4_hba.max_cfg_param.max_rq);
7697
7698 }
7699
7700 if (rc)
7701 goto read_cfg_out;
7702
7703 /* Update link speed if forced link speed is supported */
7704 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7705 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7706 forced_link_speed =
7707 bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
7708 if (forced_link_speed) {
7709 phba->hba_flag |= HBA_FORCED_LINK_SPEED;
7710
7711 switch (forced_link_speed) {
7712 case LINK_SPEED_1G:
7713 phba->cfg_link_speed =
7714 LPFC_USER_LINK_SPEED_1G;
7715 break;
7716 case LINK_SPEED_2G:
7717 phba->cfg_link_speed =
7718 LPFC_USER_LINK_SPEED_2G;
7719 break;
7720 case LINK_SPEED_4G:
7721 phba->cfg_link_speed =
7722 LPFC_USER_LINK_SPEED_4G;
7723 break;
7724 case LINK_SPEED_8G:
7725 phba->cfg_link_speed =
7726 LPFC_USER_LINK_SPEED_8G;
7727 break;
7728 case LINK_SPEED_10G:
7729 phba->cfg_link_speed =
7730 LPFC_USER_LINK_SPEED_10G;
7731 break;
7732 case LINK_SPEED_16G:
7733 phba->cfg_link_speed =
7734 LPFC_USER_LINK_SPEED_16G;
7735 break;
7736 case LINK_SPEED_32G:
7737 phba->cfg_link_speed =
7738 LPFC_USER_LINK_SPEED_32G;
7739 break;
7740 case 0xffff:
7741 phba->cfg_link_speed =
7742 LPFC_USER_LINK_SPEED_AUTO;
7743 break;
7744 default:
7745 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7746 "0047 Unrecognized link "
7747 "speed : %d\n",
7748 forced_link_speed);
7749 phba->cfg_link_speed =
7750 LPFC_USER_LINK_SPEED_AUTO;
7751 }
7752 }
7753 }
7754
7755 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
7756 length = phba->sli4_hba.max_cfg_param.max_xri -
7757 lpfc_sli4_get_els_iocb_cnt(phba);
7758 if (phba->cfg_hba_queue_depth > length) {
7759 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7760 "3361 HBA queue depth changed from %d to %d\n",
7761 phba->cfg_hba_queue_depth, length);
7762 phba->cfg_hba_queue_depth = length;
7763 }
7764
7765 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
7766 LPFC_SLI_INTF_IF_TYPE_2)
7767 goto read_cfg_out;
7768
7769 /* get the pf# and vf# for SLI4 if_type 2 port */
7770 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
7771 sizeof(struct lpfc_sli4_cfg_mhdr));
7772 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
7773 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
7774 length, LPFC_SLI4_MBX_EMBED);
7775
7776 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7777 shdr = (union lpfc_sli4_cfg_shdr *)
7778 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7779 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7780 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7781 if (rc2 || shdr_status || shdr_add_status) {
7782 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7783 "3026 Mailbox failed , mbxCmd x%x "
7784 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
7785 bf_get(lpfc_mqe_command, &pmb->u.mqe),
7786 bf_get(lpfc_mqe_status, &pmb->u.mqe));
7787 goto read_cfg_out;
7788 }
7789
7790 /* search for fc_fcoe resrouce descriptor */
7791 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
7792
7793 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
7794 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
7795 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
7796 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
7797 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
7798 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
7799 goto read_cfg_out;
7800
7801 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
7802 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
7803 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
7804 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
7805 phba->sli4_hba.iov.pf_number =
7806 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7807 phba->sli4_hba.iov.vf_number =
7808 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7809 break;
7810 }
7811 }
7812
7813 if (i < LPFC_RSRC_DESC_MAX_NUM)
7814 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7815 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7816 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7817 phba->sli4_hba.iov.vf_number);
7818 else
7819 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7820 "3028 GET_FUNCTION_CONFIG: failed to find "
7821 "Resrouce Descriptor:x%x\n",
7822 LPFC_RSRC_DESC_TYPE_FCFCOE);
7823
7824 read_cfg_out:
7825 mempool_free(pmb, phba->mbox_mem_pool);
7826 return rc;
7827 }
7828
7829 /**
7830 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7831 * @phba: pointer to lpfc hba data structure.
7832 *
7833 * This routine is invoked to setup the port-side endian order when
7834 * the port if_type is 0. This routine has no function for other
7835 * if_types.
7836 *
7837 * Return codes
7838 * 0 - successful
7839 * -ENOMEM - No available memory
7840 * -EIO - The mailbox failed to complete successfully.
7841 **/
7842 static int
7843 lpfc_setup_endian_order(struct lpfc_hba *phba)
7844 {
7845 LPFC_MBOXQ_t *mboxq;
7846 uint32_t if_type, rc = 0;
7847 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7848 HOST_ENDIAN_HIGH_WORD1};
7849
7850 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7851 switch (if_type) {
7852 case LPFC_SLI_INTF_IF_TYPE_0:
7853 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7854 GFP_KERNEL);
7855 if (!mboxq) {
7856 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7857 "0492 Unable to allocate memory for "
7858 "issuing SLI_CONFIG_SPECIAL mailbox "
7859 "command\n");
7860 return -ENOMEM;
7861 }
7862
7863 /*
7864 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7865 * two words to contain special data values and no other data.
7866 */
7867 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7868 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7869 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7870 if (rc != MBX_SUCCESS) {
7871 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7872 "0493 SLI_CONFIG_SPECIAL mailbox "
7873 "failed with status x%x\n",
7874 rc);
7875 rc = -EIO;
7876 }
7877 mempool_free(mboxq, phba->mbox_mem_pool);
7878 break;
7879 case LPFC_SLI_INTF_IF_TYPE_2:
7880 case LPFC_SLI_INTF_IF_TYPE_1:
7881 default:
7882 break;
7883 }
7884 return rc;
7885 }
7886
7887 /**
7888 * lpfc_sli4_queue_verify - Verify and update EQ counts
7889 * @phba: pointer to lpfc hba data structure.
7890 *
7891 * This routine is invoked to check the user settable queue counts for EQs.
7892 * After this routine is called the counts will be set to valid values that
7893 * adhere to the constraints of the system's interrupt vectors and the port's
7894 * queue resources.
7895 *
7896 * Return codes
7897 * 0 - successful
7898 * -ENOMEM - No available memory
7899 **/
7900 static int
7901 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7902 {
7903 int io_channel;
7904 int fof_vectors = phba->cfg_fof ? 1 : 0;
7905
7906 /*
7907 * Sanity check for configured queue parameters against the run-time
7908 * device parameters
7909 */
7910
7911 /* Sanity check on HBA EQ parameters */
7912 io_channel = phba->io_channel_irqs;
7913
7914 if (phba->sli4_hba.num_online_cpu < io_channel) {
7915 lpfc_printf_log(phba,
7916 KERN_ERR, LOG_INIT,
7917 "3188 Reducing IO channels to match number of "
7918 "online CPUs: from %d to %d\n",
7919 io_channel, phba->sli4_hba.num_online_cpu);
7920 io_channel = phba->sli4_hba.num_online_cpu;
7921 }
7922
7923 if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) {
7924 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7925 "2575 Reducing IO channels to match number of "
7926 "available EQs: from %d to %d\n",
7927 io_channel,
7928 phba->sli4_hba.max_cfg_param.max_eq);
7929 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors;
7930 }
7931
7932 /* The actual number of FCP / NVME event queues adopted */
7933 if (io_channel != phba->io_channel_irqs)
7934 phba->io_channel_irqs = io_channel;
7935 if (phba->cfg_fcp_io_channel > io_channel)
7936 phba->cfg_fcp_io_channel = io_channel;
7937 if (phba->cfg_nvme_io_channel > io_channel)
7938 phba->cfg_nvme_io_channel = io_channel;
7939 if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq)
7940 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel;
7941
7942 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7943 "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n",
7944 phba->io_channel_irqs, phba->cfg_fcp_io_channel,
7945 phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq);
7946
7947 /* Get EQ depth from module parameter, fake the default for now */
7948 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7949 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7950
7951 /* Get CQ depth from module parameter, fake the default for now */
7952 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7953 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7954 return 0;
7955 }
7956
7957 static int
7958 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
7959 {
7960 struct lpfc_queue *qdesc;
7961 int cnt;
7962
7963 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7964 phba->sli4_hba.cq_ecount);
7965 if (!qdesc) {
7966 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7967 "0508 Failed allocate fast-path NVME CQ (%d)\n",
7968 wqidx);
7969 return 1;
7970 }
7971 phba->sli4_hba.nvme_cq[wqidx] = qdesc;
7972
7973 cnt = LPFC_NVME_WQSIZE;
7974 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_WQE128_SIZE, cnt);
7975 if (!qdesc) {
7976 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7977 "0509 Failed allocate fast-path NVME WQ (%d)\n",
7978 wqidx);
7979 return 1;
7980 }
7981 phba->sli4_hba.nvme_wq[wqidx] = qdesc;
7982 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
7983 return 0;
7984 }
7985
7986 static int
7987 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
7988 {
7989 struct lpfc_queue *qdesc;
7990 uint32_t wqesize;
7991
7992 /* Create Fast Path FCP CQs */
7993 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7994 phba->sli4_hba.cq_ecount);
7995 if (!qdesc) {
7996 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7997 "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
7998 return 1;
7999 }
8000 phba->sli4_hba.fcp_cq[wqidx] = qdesc;
8001
8002 /* Create Fast Path FCP WQs */
8003 wqesize = (phba->fcp_embed_io) ?
8004 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8005 qdesc = lpfc_sli4_queue_alloc(phba, wqesize, phba->sli4_hba.wq_ecount);
8006 if (!qdesc) {
8007 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8008 "0503 Failed allocate fast-path FCP WQ (%d)\n",
8009 wqidx);
8010 return 1;
8011 }
8012 phba->sli4_hba.fcp_wq[wqidx] = qdesc;
8013 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8014 return 0;
8015 }
8016
8017 /**
8018 * lpfc_sli4_queue_create - Create all the SLI4 queues
8019 * @phba: pointer to lpfc hba data structure.
8020 *
8021 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8022 * operation. For each SLI4 queue type, the parameters such as queue entry
8023 * count (queue depth) shall be taken from the module parameter. For now,
8024 * we just use some constant number as place holder.
8025 *
8026 * Return codes
8027 * 0 - successful
8028 * -ENOMEM - No availble memory
8029 * -EIO - The mailbox failed to complete successfully.
8030 **/
8031 int
8032 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8033 {
8034 struct lpfc_queue *qdesc;
8035 int idx, io_channel;
8036
8037 /*
8038 * Create HBA Record arrays.
8039 * Both NVME and FCP will share that same vectors / EQs
8040 */
8041 io_channel = phba->io_channel_irqs;
8042 if (!io_channel)
8043 return -ERANGE;
8044
8045 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8046 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8047 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8048 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8049 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8050 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8051 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8052 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8053 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8054 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8055
8056 phba->sli4_hba.hba_eq = kcalloc(io_channel,
8057 sizeof(struct lpfc_queue *),
8058 GFP_KERNEL);
8059 if (!phba->sli4_hba.hba_eq) {
8060 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8061 "2576 Failed allocate memory for "
8062 "fast-path EQ record array\n");
8063 goto out_error;
8064 }
8065
8066 if (phba->cfg_fcp_io_channel) {
8067 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel,
8068 sizeof(struct lpfc_queue *),
8069 GFP_KERNEL);
8070 if (!phba->sli4_hba.fcp_cq) {
8071 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8072 "2577 Failed allocate memory for "
8073 "fast-path CQ record array\n");
8074 goto out_error;
8075 }
8076 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel,
8077 sizeof(struct lpfc_queue *),
8078 GFP_KERNEL);
8079 if (!phba->sli4_hba.fcp_wq) {
8080 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8081 "2578 Failed allocate memory for "
8082 "fast-path FCP WQ record array\n");
8083 goto out_error;
8084 }
8085 /*
8086 * Since the first EQ can have multiple CQs associated with it,
8087 * this array is used to quickly see if we have a FCP fast-path
8088 * CQ match.
8089 */
8090 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel,
8091 sizeof(uint16_t),
8092 GFP_KERNEL);
8093 if (!phba->sli4_hba.fcp_cq_map) {
8094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8095 "2545 Failed allocate memory for "
8096 "fast-path CQ map\n");
8097 goto out_error;
8098 }
8099 }
8100
8101 if (phba->cfg_nvme_io_channel) {
8102 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel,
8103 sizeof(struct lpfc_queue *),
8104 GFP_KERNEL);
8105 if (!phba->sli4_hba.nvme_cq) {
8106 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8107 "6077 Failed allocate memory for "
8108 "fast-path CQ record array\n");
8109 goto out_error;
8110 }
8111
8112 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel,
8113 sizeof(struct lpfc_queue *),
8114 GFP_KERNEL);
8115 if (!phba->sli4_hba.nvme_wq) {
8116 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8117 "2581 Failed allocate memory for "
8118 "fast-path NVME WQ record array\n");
8119 goto out_error;
8120 }
8121
8122 /*
8123 * Since the first EQ can have multiple CQs associated with it,
8124 * this array is used to quickly see if we have a NVME fast-path
8125 * CQ match.
8126 */
8127 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel,
8128 sizeof(uint16_t),
8129 GFP_KERNEL);
8130 if (!phba->sli4_hba.nvme_cq_map) {
8131 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8132 "6078 Failed allocate memory for "
8133 "fast-path CQ map\n");
8134 goto out_error;
8135 }
8136
8137 if (phba->nvmet_support) {
8138 phba->sli4_hba.nvmet_cqset = kcalloc(
8139 phba->cfg_nvmet_mrq,
8140 sizeof(struct lpfc_queue *),
8141 GFP_KERNEL);
8142 if (!phba->sli4_hba.nvmet_cqset) {
8143 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8144 "3121 Fail allocate memory for "
8145 "fast-path CQ set array\n");
8146 goto out_error;
8147 }
8148 phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8149 phba->cfg_nvmet_mrq,
8150 sizeof(struct lpfc_queue *),
8151 GFP_KERNEL);
8152 if (!phba->sli4_hba.nvmet_mrq_hdr) {
8153 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8154 "3122 Fail allocate memory for "
8155 "fast-path RQ set hdr array\n");
8156 goto out_error;
8157 }
8158 phba->sli4_hba.nvmet_mrq_data = kcalloc(
8159 phba->cfg_nvmet_mrq,
8160 sizeof(struct lpfc_queue *),
8161 GFP_KERNEL);
8162 if (!phba->sli4_hba.nvmet_mrq_data) {
8163 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8164 "3124 Fail allocate memory for "
8165 "fast-path RQ set data array\n");
8166 goto out_error;
8167 }
8168 }
8169 }
8170
8171 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8172
8173 /* Create HBA Event Queues (EQs) */
8174 for (idx = 0; idx < io_channel; idx++) {
8175 /* Create EQs */
8176 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
8177 phba->sli4_hba.eq_ecount);
8178 if (!qdesc) {
8179 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8180 "0497 Failed allocate EQ (%d)\n", idx);
8181 goto out_error;
8182 }
8183 phba->sli4_hba.hba_eq[idx] = qdesc;
8184 }
8185
8186 /* FCP and NVME io channels are not required to be balanced */
8187
8188 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8189 if (lpfc_alloc_fcp_wq_cq(phba, idx))
8190 goto out_error;
8191
8192 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++)
8193 if (lpfc_alloc_nvme_wq_cq(phba, idx))
8194 goto out_error;
8195
8196 if (phba->nvmet_support) {
8197 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8198 qdesc = lpfc_sli4_queue_alloc(phba,
8199 phba->sli4_hba.cq_esize,
8200 phba->sli4_hba.cq_ecount);
8201 if (!qdesc) {
8202 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8203 "3142 Failed allocate NVME "
8204 "CQ Set (%d)\n", idx);
8205 goto out_error;
8206 }
8207 phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8208 }
8209 }
8210
8211 /*
8212 * Create Slow Path Completion Queues (CQs)
8213 */
8214
8215 /* Create slow-path Mailbox Command Complete Queue */
8216 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8217 phba->sli4_hba.cq_ecount);
8218 if (!qdesc) {
8219 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8220 "0500 Failed allocate slow-path mailbox CQ\n");
8221 goto out_error;
8222 }
8223 phba->sli4_hba.mbx_cq = qdesc;
8224
8225 /* Create slow-path ELS Complete Queue */
8226 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8227 phba->sli4_hba.cq_ecount);
8228 if (!qdesc) {
8229 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8230 "0501 Failed allocate slow-path ELS CQ\n");
8231 goto out_error;
8232 }
8233 phba->sli4_hba.els_cq = qdesc;
8234
8235
8236 /*
8237 * Create Slow Path Work Queues (WQs)
8238 */
8239
8240 /* Create Mailbox Command Queue */
8241
8242 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
8243 phba->sli4_hba.mq_ecount);
8244 if (!qdesc) {
8245 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8246 "0505 Failed allocate slow-path MQ\n");
8247 goto out_error;
8248 }
8249 phba->sli4_hba.mbx_wq = qdesc;
8250
8251 /*
8252 * Create ELS Work Queues
8253 */
8254
8255 /* Create slow-path ELS Work Queue */
8256 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
8257 phba->sli4_hba.wq_ecount);
8258 if (!qdesc) {
8259 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8260 "0504 Failed allocate slow-path ELS WQ\n");
8261 goto out_error;
8262 }
8263 phba->sli4_hba.els_wq = qdesc;
8264 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8265
8266 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8267 /* Create NVME LS Complete Queue */
8268 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8269 phba->sli4_hba.cq_ecount);
8270 if (!qdesc) {
8271 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8272 "6079 Failed allocate NVME LS CQ\n");
8273 goto out_error;
8274 }
8275 phba->sli4_hba.nvmels_cq = qdesc;
8276
8277 /* Create NVME LS Work Queue */
8278 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
8279 phba->sli4_hba.wq_ecount);
8280 if (!qdesc) {
8281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8282 "6080 Failed allocate NVME LS WQ\n");
8283 goto out_error;
8284 }
8285 phba->sli4_hba.nvmels_wq = qdesc;
8286 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8287 }
8288
8289 /*
8290 * Create Receive Queue (RQ)
8291 */
8292
8293 /* Create Receive Queue for header */
8294 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
8295 phba->sli4_hba.rq_ecount);
8296 if (!qdesc) {
8297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8298 "0506 Failed allocate receive HRQ\n");
8299 goto out_error;
8300 }
8301 phba->sli4_hba.hdr_rq = qdesc;
8302
8303 /* Create Receive Queue for data */
8304 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
8305 phba->sli4_hba.rq_ecount);
8306 if (!qdesc) {
8307 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8308 "0507 Failed allocate receive DRQ\n");
8309 goto out_error;
8310 }
8311 phba->sli4_hba.dat_rq = qdesc;
8312
8313 if (phba->nvmet_support) {
8314 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8315 /* Create NVMET Receive Queue for header */
8316 qdesc = lpfc_sli4_queue_alloc(phba,
8317 phba->sli4_hba.rq_esize,
8318 LPFC_NVMET_RQE_DEF_COUNT);
8319 if (!qdesc) {
8320 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8321 "3146 Failed allocate "
8322 "receive HRQ\n");
8323 goto out_error;
8324 }
8325 phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
8326
8327 /* Only needed for header of RQ pair */
8328 qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb),
8329 GFP_KERNEL);
8330 if (qdesc->rqbp == NULL) {
8331 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8332 "6131 Failed allocate "
8333 "Header RQBP\n");
8334 goto out_error;
8335 }
8336
8337 /* Put list in known state in case driver load fails. */
8338 INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
8339
8340 /* Create NVMET Receive Queue for data */
8341 qdesc = lpfc_sli4_queue_alloc(phba,
8342 phba->sli4_hba.rq_esize,
8343 LPFC_NVMET_RQE_DEF_COUNT);
8344 if (!qdesc) {
8345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8346 "3156 Failed allocate "
8347 "receive DRQ\n");
8348 goto out_error;
8349 }
8350 phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
8351 }
8352 }
8353
8354 /* Create the Queues needed for Flash Optimized Fabric operations */
8355 if (phba->cfg_fof)
8356 lpfc_fof_queue_create(phba);
8357 return 0;
8358
8359 out_error:
8360 lpfc_sli4_queue_destroy(phba);
8361 return -ENOMEM;
8362 }
8363
8364 static inline void
8365 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
8366 {
8367 if (*qp != NULL) {
8368 lpfc_sli4_queue_free(*qp);
8369 *qp = NULL;
8370 }
8371 }
8372
8373 static inline void
8374 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
8375 {
8376 int idx;
8377
8378 if (*qs == NULL)
8379 return;
8380
8381 for (idx = 0; idx < max; idx++)
8382 __lpfc_sli4_release_queue(&(*qs)[idx]);
8383
8384 kfree(*qs);
8385 *qs = NULL;
8386 }
8387
8388 static inline void
8389 lpfc_sli4_release_queue_map(uint16_t **qmap)
8390 {
8391 if (*qmap != NULL) {
8392 kfree(*qmap);
8393 *qmap = NULL;
8394 }
8395 }
8396
8397 /**
8398 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
8399 * @phba: pointer to lpfc hba data structure.
8400 *
8401 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
8402 * operation.
8403 *
8404 * Return codes
8405 * 0 - successful
8406 * -ENOMEM - No available memory
8407 * -EIO - The mailbox failed to complete successfully.
8408 **/
8409 void
8410 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
8411 {
8412 if (phba->cfg_fof)
8413 lpfc_fof_queue_destroy(phba);
8414
8415 /* Release HBA eqs */
8416 lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs);
8417
8418 /* Release FCP cqs */
8419 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq,
8420 phba->cfg_fcp_io_channel);
8421
8422 /* Release FCP wqs */
8423 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq,
8424 phba->cfg_fcp_io_channel);
8425
8426 /* Release FCP CQ mapping array */
8427 lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map);
8428
8429 /* Release NVME cqs */
8430 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq,
8431 phba->cfg_nvme_io_channel);
8432
8433 /* Release NVME wqs */
8434 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq,
8435 phba->cfg_nvme_io_channel);
8436
8437 /* Release NVME CQ mapping array */
8438 lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map);
8439
8440 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
8441 phba->cfg_nvmet_mrq);
8442
8443 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
8444 phba->cfg_nvmet_mrq);
8445 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
8446 phba->cfg_nvmet_mrq);
8447
8448 /* Release mailbox command work queue */
8449 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
8450
8451 /* Release ELS work queue */
8452 __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
8453
8454 /* Release ELS work queue */
8455 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
8456
8457 /* Release unsolicited receive queue */
8458 __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
8459 __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
8460
8461 /* Release ELS complete queue */
8462 __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
8463
8464 /* Release NVME LS complete queue */
8465 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
8466
8467 /* Release mailbox command complete queue */
8468 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
8469
8470 /* Everything on this list has been freed */
8471 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8472 }
8473
8474 int
8475 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
8476 {
8477 struct lpfc_rqb *rqbp;
8478 struct lpfc_dmabuf *h_buf;
8479 struct rqb_dmabuf *rqb_buffer;
8480
8481 rqbp = rq->rqbp;
8482 while (!list_empty(&rqbp->rqb_buffer_list)) {
8483 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
8484 struct lpfc_dmabuf, list);
8485
8486 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
8487 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
8488 rqbp->buffer_count--;
8489 }
8490 return 1;
8491 }
8492
8493 static int
8494 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
8495 struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
8496 int qidx, uint32_t qtype)
8497 {
8498 struct lpfc_sli_ring *pring;
8499 int rc;
8500
8501 if (!eq || !cq || !wq) {
8502 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8503 "6085 Fast-path %s (%d) not allocated\n",
8504 ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
8505 return -ENOMEM;
8506 }
8507
8508 /* create the Cq first */
8509 rc = lpfc_cq_create(phba, cq, eq,
8510 (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
8511 if (rc) {
8512 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8513 "6086 Failed setup of CQ (%d), rc = 0x%x\n",
8514 qidx, (uint32_t)rc);
8515 return rc;
8516 }
8517
8518 if (qtype != LPFC_MBOX) {
8519 /* Setup nvme_cq_map for fast lookup */
8520 if (cq_map)
8521 *cq_map = cq->queue_id;
8522
8523 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8524 "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
8525 qidx, cq->queue_id, qidx, eq->queue_id);
8526
8527 /* create the wq */
8528 rc = lpfc_wq_create(phba, wq, cq, qtype);
8529 if (rc) {
8530 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8531 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n",
8532 qidx, (uint32_t)rc);
8533 /* no need to tear down cq - caller will do so */
8534 return rc;
8535 }
8536
8537 /* Bind this CQ/WQ to the NVME ring */
8538 pring = wq->pring;
8539 pring->sli.sli4.wqp = (void *)wq;
8540 cq->pring = pring;
8541
8542 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8543 "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
8544 qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
8545 } else {
8546 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
8547 if (rc) {
8548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8549 "0539 Failed setup of slow-path MQ: "
8550 "rc = 0x%x\n", rc);
8551 /* no need to tear down cq - caller will do so */
8552 return rc;
8553 }
8554
8555 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8556 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
8557 phba->sli4_hba.mbx_wq->queue_id,
8558 phba->sli4_hba.mbx_cq->queue_id);
8559 }
8560
8561 return 0;
8562 }
8563
8564 /**
8565 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
8566 * @phba: pointer to lpfc hba data structure.
8567 *
8568 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
8569 * operation.
8570 *
8571 * Return codes
8572 * 0 - successful
8573 * -ENOMEM - No available memory
8574 * -EIO - The mailbox failed to complete successfully.
8575 **/
8576 int
8577 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
8578 {
8579 uint32_t shdr_status, shdr_add_status;
8580 union lpfc_sli4_cfg_shdr *shdr;
8581 LPFC_MBOXQ_t *mboxq;
8582 int qidx;
8583 uint32_t length, io_channel;
8584 int rc = -ENOMEM;
8585
8586 /* Check for dual-ULP support */
8587 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8588 if (!mboxq) {
8589 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8590 "3249 Unable to allocate memory for "
8591 "QUERY_FW_CFG mailbox command\n");
8592 return -ENOMEM;
8593 }
8594 length = (sizeof(struct lpfc_mbx_query_fw_config) -
8595 sizeof(struct lpfc_sli4_cfg_mhdr));
8596 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8597 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
8598 length, LPFC_SLI4_MBX_EMBED);
8599
8600 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8601
8602 shdr = (union lpfc_sli4_cfg_shdr *)
8603 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8604 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8605 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8606 if (shdr_status || shdr_add_status || rc) {
8607 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8608 "3250 QUERY_FW_CFG mailbox failed with status "
8609 "x%x add_status x%x, mbx status x%x\n",
8610 shdr_status, shdr_add_status, rc);
8611 if (rc != MBX_TIMEOUT)
8612 mempool_free(mboxq, phba->mbox_mem_pool);
8613 rc = -ENXIO;
8614 goto out_error;
8615 }
8616
8617 phba->sli4_hba.fw_func_mode =
8618 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
8619 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
8620 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
8621 phba->sli4_hba.physical_port =
8622 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
8623 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8624 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
8625 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
8626 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
8627
8628 if (rc != MBX_TIMEOUT)
8629 mempool_free(mboxq, phba->mbox_mem_pool);
8630
8631 /*
8632 * Set up HBA Event Queues (EQs)
8633 */
8634 io_channel = phba->io_channel_irqs;
8635
8636 /* Set up HBA event queue */
8637 if (io_channel && !phba->sli4_hba.hba_eq) {
8638 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8639 "3147 Fast-path EQs not allocated\n");
8640 rc = -ENOMEM;
8641 goto out_error;
8642 }
8643 for (qidx = 0; qidx < io_channel; qidx++) {
8644 if (!phba->sli4_hba.hba_eq[qidx]) {
8645 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8646 "0522 Fast-path EQ (%d) not "
8647 "allocated\n", qidx);
8648 rc = -ENOMEM;
8649 goto out_destroy;
8650 }
8651 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx],
8652 phba->cfg_fcp_imax);
8653 if (rc) {
8654 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8655 "0523 Failed setup of fast-path EQ "
8656 "(%d), rc = 0x%x\n", qidx,
8657 (uint32_t)rc);
8658 goto out_destroy;
8659 }
8660 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8661 "2584 HBA EQ setup: queue[%d]-id=%d\n",
8662 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id);
8663 }
8664
8665 if (phba->cfg_nvme_io_channel) {
8666 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) {
8667 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8668 "6084 Fast-path NVME %s array not allocated\n",
8669 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ");
8670 rc = -ENOMEM;
8671 goto out_destroy;
8672 }
8673
8674 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) {
8675 rc = lpfc_create_wq_cq(phba,
8676 phba->sli4_hba.hba_eq[
8677 qidx % io_channel],
8678 phba->sli4_hba.nvme_cq[qidx],
8679 phba->sli4_hba.nvme_wq[qidx],
8680 &phba->sli4_hba.nvme_cq_map[qidx],
8681 qidx, LPFC_NVME);
8682 if (rc) {
8683 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8684 "6123 Failed to setup fastpath "
8685 "NVME WQ/CQ (%d), rc = 0x%x\n",
8686 qidx, (uint32_t)rc);
8687 goto out_destroy;
8688 }
8689 }
8690 }
8691
8692 if (phba->cfg_fcp_io_channel) {
8693 /* Set up fast-path FCP Response Complete Queue */
8694 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) {
8695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8696 "3148 Fast-path FCP %s array not allocated\n",
8697 phba->sli4_hba.fcp_cq ? "WQ" : "CQ");
8698 rc = -ENOMEM;
8699 goto out_destroy;
8700 }
8701
8702 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) {
8703 rc = lpfc_create_wq_cq(phba,
8704 phba->sli4_hba.hba_eq[
8705 qidx % io_channel],
8706 phba->sli4_hba.fcp_cq[qidx],
8707 phba->sli4_hba.fcp_wq[qidx],
8708 &phba->sli4_hba.fcp_cq_map[qidx],
8709 qidx, LPFC_FCP);
8710 if (rc) {
8711 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8712 "0535 Failed to setup fastpath "
8713 "FCP WQ/CQ (%d), rc = 0x%x\n",
8714 qidx, (uint32_t)rc);
8715 goto out_destroy;
8716 }
8717 }
8718 }
8719
8720 /*
8721 * Set up Slow Path Complete Queues (CQs)
8722 */
8723
8724 /* Set up slow-path MBOX CQ/MQ */
8725
8726 if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
8727 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8728 "0528 %s not allocated\n",
8729 phba->sli4_hba.mbx_cq ?
8730 "Mailbox WQ" : "Mailbox CQ");
8731 rc = -ENOMEM;
8732 goto out_destroy;
8733 }
8734
8735 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8736 phba->sli4_hba.mbx_cq,
8737 phba->sli4_hba.mbx_wq,
8738 NULL, 0, LPFC_MBOX);
8739 if (rc) {
8740 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8741 "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
8742 (uint32_t)rc);
8743 goto out_destroy;
8744 }
8745 if (phba->nvmet_support) {
8746 if (!phba->sli4_hba.nvmet_cqset) {
8747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8748 "3165 Fast-path NVME CQ Set "
8749 "array not allocated\n");
8750 rc = -ENOMEM;
8751 goto out_destroy;
8752 }
8753 if (phba->cfg_nvmet_mrq > 1) {
8754 rc = lpfc_cq_create_set(phba,
8755 phba->sli4_hba.nvmet_cqset,
8756 phba->sli4_hba.hba_eq,
8757 LPFC_WCQ, LPFC_NVMET);
8758 if (rc) {
8759 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8760 "3164 Failed setup of NVME CQ "
8761 "Set, rc = 0x%x\n",
8762 (uint32_t)rc);
8763 goto out_destroy;
8764 }
8765 } else {
8766 /* Set up NVMET Receive Complete Queue */
8767 rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
8768 phba->sli4_hba.hba_eq[0],
8769 LPFC_WCQ, LPFC_NVMET);
8770 if (rc) {
8771 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8772 "6089 Failed setup NVMET CQ: "
8773 "rc = 0x%x\n", (uint32_t)rc);
8774 goto out_destroy;
8775 }
8776 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8777 "6090 NVMET CQ setup: cq-id=%d, "
8778 "parent eq-id=%d\n",
8779 phba->sli4_hba.nvmet_cqset[0]->queue_id,
8780 phba->sli4_hba.hba_eq[0]->queue_id);
8781 }
8782 }
8783
8784 /* Set up slow-path ELS WQ/CQ */
8785 if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
8786 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8787 "0530 ELS %s not allocated\n",
8788 phba->sli4_hba.els_cq ? "WQ" : "CQ");
8789 rc = -ENOMEM;
8790 goto out_destroy;
8791 }
8792 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8793 phba->sli4_hba.els_cq,
8794 phba->sli4_hba.els_wq,
8795 NULL, 0, LPFC_ELS);
8796 if (rc) {
8797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8798 "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
8799 (uint32_t)rc);
8800 goto out_destroy;
8801 }
8802 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8803 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
8804 phba->sli4_hba.els_wq->queue_id,
8805 phba->sli4_hba.els_cq->queue_id);
8806
8807 if (phba->cfg_nvme_io_channel) {
8808 /* Set up NVME LS Complete Queue */
8809 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
8810 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8811 "6091 LS %s not allocated\n",
8812 phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
8813 rc = -ENOMEM;
8814 goto out_destroy;
8815 }
8816 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8817 phba->sli4_hba.nvmels_cq,
8818 phba->sli4_hba.nvmels_wq,
8819 NULL, 0, LPFC_NVME_LS);
8820 if (rc) {
8821 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8822 "0529 Failed setup of NVVME LS WQ/CQ: "
8823 "rc = 0x%x\n", (uint32_t)rc);
8824 goto out_destroy;
8825 }
8826
8827 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8828 "6096 ELS WQ setup: wq-id=%d, "
8829 "parent cq-id=%d\n",
8830 phba->sli4_hba.nvmels_wq->queue_id,
8831 phba->sli4_hba.nvmels_cq->queue_id);
8832 }
8833
8834 /*
8835 * Create NVMET Receive Queue (RQ)
8836 */
8837 if (phba->nvmet_support) {
8838 if ((!phba->sli4_hba.nvmet_cqset) ||
8839 (!phba->sli4_hba.nvmet_mrq_hdr) ||
8840 (!phba->sli4_hba.nvmet_mrq_data)) {
8841 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8842 "6130 MRQ CQ Queues not "
8843 "allocated\n");
8844 rc = -ENOMEM;
8845 goto out_destroy;
8846 }
8847 if (phba->cfg_nvmet_mrq > 1) {
8848 rc = lpfc_mrq_create(phba,
8849 phba->sli4_hba.nvmet_mrq_hdr,
8850 phba->sli4_hba.nvmet_mrq_data,
8851 phba->sli4_hba.nvmet_cqset,
8852 LPFC_NVMET);
8853 if (rc) {
8854 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8855 "6098 Failed setup of NVMET "
8856 "MRQ: rc = 0x%x\n",
8857 (uint32_t)rc);
8858 goto out_destroy;
8859 }
8860
8861 } else {
8862 rc = lpfc_rq_create(phba,
8863 phba->sli4_hba.nvmet_mrq_hdr[0],
8864 phba->sli4_hba.nvmet_mrq_data[0],
8865 phba->sli4_hba.nvmet_cqset[0],
8866 LPFC_NVMET);
8867 if (rc) {
8868 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8869 "6057 Failed setup of NVMET "
8870 "Receive Queue: rc = 0x%x\n",
8871 (uint32_t)rc);
8872 goto out_destroy;
8873 }
8874
8875 lpfc_printf_log(
8876 phba, KERN_INFO, LOG_INIT,
8877 "6099 NVMET RQ setup: hdr-rq-id=%d, "
8878 "dat-rq-id=%d parent cq-id=%d\n",
8879 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
8880 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
8881 phba->sli4_hba.nvmet_cqset[0]->queue_id);
8882
8883 }
8884 }
8885
8886 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
8887 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8888 "0540 Receive Queue not allocated\n");
8889 rc = -ENOMEM;
8890 goto out_destroy;
8891 }
8892
8893 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
8894 phba->sli4_hba.els_cq, LPFC_USOL);
8895 if (rc) {
8896 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8897 "0541 Failed setup of Receive Queue: "
8898 "rc = 0x%x\n", (uint32_t)rc);
8899 goto out_destroy;
8900 }
8901
8902 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8903 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
8904 "parent cq-id=%d\n",
8905 phba->sli4_hba.hdr_rq->queue_id,
8906 phba->sli4_hba.dat_rq->queue_id,
8907 phba->sli4_hba.els_cq->queue_id);
8908
8909 if (phba->cfg_fof) {
8910 rc = lpfc_fof_queue_setup(phba);
8911 if (rc) {
8912 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8913 "0549 Failed setup of FOF Queues: "
8914 "rc = 0x%x\n", rc);
8915 goto out_destroy;
8916 }
8917 }
8918
8919 for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
8920 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
8921 phba->cfg_fcp_imax);
8922
8923 return 0;
8924
8925 out_destroy:
8926 lpfc_sli4_queue_unset(phba);
8927 out_error:
8928 return rc;
8929 }
8930
8931 /**
8932 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
8933 * @phba: pointer to lpfc hba data structure.
8934 *
8935 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
8936 * operation.
8937 *
8938 * Return codes
8939 * 0 - successful
8940 * -ENOMEM - No available memory
8941 * -EIO - The mailbox failed to complete successfully.
8942 **/
8943 void
8944 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
8945 {
8946 int qidx;
8947
8948 /* Unset the queues created for Flash Optimized Fabric operations */
8949 if (phba->cfg_fof)
8950 lpfc_fof_queue_destroy(phba);
8951
8952 /* Unset mailbox command work queue */
8953 if (phba->sli4_hba.mbx_wq)
8954 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
8955
8956 /* Unset NVME LS work queue */
8957 if (phba->sli4_hba.nvmels_wq)
8958 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
8959
8960 /* Unset ELS work queue */
8961 if (phba->sli4_hba.els_wq)
8962 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
8963
8964 /* Unset unsolicited receive queue */
8965 if (phba->sli4_hba.hdr_rq)
8966 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
8967 phba->sli4_hba.dat_rq);
8968
8969 /* Unset FCP work queue */
8970 if (phba->sli4_hba.fcp_wq)
8971 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
8972 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]);
8973
8974 /* Unset NVME work queue */
8975 if (phba->sli4_hba.nvme_wq) {
8976 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
8977 lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]);
8978 }
8979
8980 /* Unset mailbox command complete queue */
8981 if (phba->sli4_hba.mbx_cq)
8982 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
8983
8984 /* Unset ELS complete queue */
8985 if (phba->sli4_hba.els_cq)
8986 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
8987
8988 /* Unset NVME LS complete queue */
8989 if (phba->sli4_hba.nvmels_cq)
8990 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
8991
8992 /* Unset NVME response complete queue */
8993 if (phba->sli4_hba.nvme_cq)
8994 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
8995 lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]);
8996
8997 /* Unset NVMET MRQ queue */
8998 if (phba->sli4_hba.nvmet_mrq_hdr) {
8999 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9000 lpfc_rq_destroy(phba,
9001 phba->sli4_hba.nvmet_mrq_hdr[qidx],
9002 phba->sli4_hba.nvmet_mrq_data[qidx]);
9003 }
9004
9005 /* Unset NVMET CQ Set complete queue */
9006 if (phba->sli4_hba.nvmet_cqset) {
9007 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9008 lpfc_cq_destroy(phba,
9009 phba->sli4_hba.nvmet_cqset[qidx]);
9010 }
9011
9012 /* Unset FCP response complete queue */
9013 if (phba->sli4_hba.fcp_cq)
9014 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
9015 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]);
9016
9017 /* Unset fast-path event queue */
9018 if (phba->sli4_hba.hba_eq)
9019 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
9020 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]);
9021 }
9022
9023 /**
9024 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9025 * @phba: pointer to lpfc hba data structure.
9026 *
9027 * This routine is invoked to allocate and set up a pool of completion queue
9028 * events. The body of the completion queue event is a completion queue entry
9029 * CQE. For now, this pool is used for the interrupt service routine to queue
9030 * the following HBA completion queue events for the worker thread to process:
9031 * - Mailbox asynchronous events
9032 * - Receive queue completion unsolicited events
9033 * Later, this can be used for all the slow-path events.
9034 *
9035 * Return codes
9036 * 0 - successful
9037 * -ENOMEM - No available memory
9038 **/
9039 static int
9040 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9041 {
9042 struct lpfc_cq_event *cq_event;
9043 int i;
9044
9045 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9046 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9047 if (!cq_event)
9048 goto out_pool_create_fail;
9049 list_add_tail(&cq_event->list,
9050 &phba->sli4_hba.sp_cqe_event_pool);
9051 }
9052 return 0;
9053
9054 out_pool_create_fail:
9055 lpfc_sli4_cq_event_pool_destroy(phba);
9056 return -ENOMEM;
9057 }
9058
9059 /**
9060 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9061 * @phba: pointer to lpfc hba data structure.
9062 *
9063 * This routine is invoked to free the pool of completion queue events at
9064 * driver unload time. Note that, it is the responsibility of the driver
9065 * cleanup routine to free all the outstanding completion-queue events
9066 * allocated from this pool back into the pool before invoking this routine
9067 * to destroy the pool.
9068 **/
9069 static void
9070 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9071 {
9072 struct lpfc_cq_event *cq_event, *next_cq_event;
9073
9074 list_for_each_entry_safe(cq_event, next_cq_event,
9075 &phba->sli4_hba.sp_cqe_event_pool, list) {
9076 list_del(&cq_event->list);
9077 kfree(cq_event);
9078 }
9079 }
9080
9081 /**
9082 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9083 * @phba: pointer to lpfc hba data structure.
9084 *
9085 * This routine is the lock free version of the API invoked to allocate a
9086 * completion-queue event from the free pool.
9087 *
9088 * Return: Pointer to the newly allocated completion-queue event if successful
9089 * NULL otherwise.
9090 **/
9091 struct lpfc_cq_event *
9092 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9093 {
9094 struct lpfc_cq_event *cq_event = NULL;
9095
9096 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9097 struct lpfc_cq_event, list);
9098 return cq_event;
9099 }
9100
9101 /**
9102 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9103 * @phba: pointer to lpfc hba data structure.
9104 *
9105 * This routine is the lock version of the API invoked to allocate a
9106 * completion-queue event from the free pool.
9107 *
9108 * Return: Pointer to the newly allocated completion-queue event if successful
9109 * NULL otherwise.
9110 **/
9111 struct lpfc_cq_event *
9112 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9113 {
9114 struct lpfc_cq_event *cq_event;
9115 unsigned long iflags;
9116
9117 spin_lock_irqsave(&phba->hbalock, iflags);
9118 cq_event = __lpfc_sli4_cq_event_alloc(phba);
9119 spin_unlock_irqrestore(&phba->hbalock, iflags);
9120 return cq_event;
9121 }
9122
9123 /**
9124 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9125 * @phba: pointer to lpfc hba data structure.
9126 * @cq_event: pointer to the completion queue event to be freed.
9127 *
9128 * This routine is the lock free version of the API invoked to release a
9129 * completion-queue event back into the free pool.
9130 **/
9131 void
9132 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9133 struct lpfc_cq_event *cq_event)
9134 {
9135 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9136 }
9137
9138 /**
9139 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9140 * @phba: pointer to lpfc hba data structure.
9141 * @cq_event: pointer to the completion queue event to be freed.
9142 *
9143 * This routine is the lock version of the API invoked to release a
9144 * completion-queue event back into the free pool.
9145 **/
9146 void
9147 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9148 struct lpfc_cq_event *cq_event)
9149 {
9150 unsigned long iflags;
9151 spin_lock_irqsave(&phba->hbalock, iflags);
9152 __lpfc_sli4_cq_event_release(phba, cq_event);
9153 spin_unlock_irqrestore(&phba->hbalock, iflags);
9154 }
9155
9156 /**
9157 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9158 * @phba: pointer to lpfc hba data structure.
9159 *
9160 * This routine is to free all the pending completion-queue events to the
9161 * back into the free pool for device reset.
9162 **/
9163 static void
9164 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9165 {
9166 LIST_HEAD(cqelist);
9167 struct lpfc_cq_event *cqe;
9168 unsigned long iflags;
9169
9170 /* Retrieve all the pending WCQEs from pending WCQE lists */
9171 spin_lock_irqsave(&phba->hbalock, iflags);
9172 /* Pending FCP XRI abort events */
9173 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9174 &cqelist);
9175 /* Pending ELS XRI abort events */
9176 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9177 &cqelist);
9178 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9179 /* Pending NVME XRI abort events */
9180 list_splice_init(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue,
9181 &cqelist);
9182 }
9183 /* Pending asynnc events */
9184 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9185 &cqelist);
9186 spin_unlock_irqrestore(&phba->hbalock, iflags);
9187
9188 while (!list_empty(&cqelist)) {
9189 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9190 lpfc_sli4_cq_event_release(phba, cqe);
9191 }
9192 }
9193
9194 /**
9195 * lpfc_pci_function_reset - Reset pci function.
9196 * @phba: pointer to lpfc hba data structure.
9197 *
9198 * This routine is invoked to request a PCI function reset. It will destroys
9199 * all resources assigned to the PCI function which originates this request.
9200 *
9201 * Return codes
9202 * 0 - successful
9203 * -ENOMEM - No available memory
9204 * -EIO - The mailbox failed to complete successfully.
9205 **/
9206 int
9207 lpfc_pci_function_reset(struct lpfc_hba *phba)
9208 {
9209 LPFC_MBOXQ_t *mboxq;
9210 uint32_t rc = 0, if_type;
9211 uint32_t shdr_status, shdr_add_status;
9212 uint32_t rdy_chk;
9213 uint32_t port_reset = 0;
9214 union lpfc_sli4_cfg_shdr *shdr;
9215 struct lpfc_register reg_data;
9216 uint16_t devid;
9217
9218 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9219 switch (if_type) {
9220 case LPFC_SLI_INTF_IF_TYPE_0:
9221 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9222 GFP_KERNEL);
9223 if (!mboxq) {
9224 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9225 "0494 Unable to allocate memory for "
9226 "issuing SLI_FUNCTION_RESET mailbox "
9227 "command\n");
9228 return -ENOMEM;
9229 }
9230
9231 /* Setup PCI function reset mailbox-ioctl command */
9232 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9233 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9234 LPFC_SLI4_MBX_EMBED);
9235 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9236 shdr = (union lpfc_sli4_cfg_shdr *)
9237 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9238 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9239 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9240 &shdr->response);
9241 if (rc != MBX_TIMEOUT)
9242 mempool_free(mboxq, phba->mbox_mem_pool);
9243 if (shdr_status || shdr_add_status || rc) {
9244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9245 "0495 SLI_FUNCTION_RESET mailbox "
9246 "failed with status x%x add_status x%x,"
9247 " mbx status x%x\n",
9248 shdr_status, shdr_add_status, rc);
9249 rc = -ENXIO;
9250 }
9251 break;
9252 case LPFC_SLI_INTF_IF_TYPE_2:
9253 wait:
9254 /*
9255 * Poll the Port Status Register and wait for RDY for
9256 * up to 30 seconds. If the port doesn't respond, treat
9257 * it as an error.
9258 */
9259 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
9260 if (lpfc_readl(phba->sli4_hba.u.if_type2.
9261 STATUSregaddr, &reg_data.word0)) {
9262 rc = -ENODEV;
9263 goto out;
9264 }
9265 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
9266 break;
9267 msleep(20);
9268 }
9269
9270 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
9271 phba->work_status[0] = readl(
9272 phba->sli4_hba.u.if_type2.ERR1regaddr);
9273 phba->work_status[1] = readl(
9274 phba->sli4_hba.u.if_type2.ERR2regaddr);
9275 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9276 "2890 Port not ready, port status reg "
9277 "0x%x error 1=0x%x, error 2=0x%x\n",
9278 reg_data.word0,
9279 phba->work_status[0],
9280 phba->work_status[1]);
9281 rc = -ENODEV;
9282 goto out;
9283 }
9284
9285 if (!port_reset) {
9286 /*
9287 * Reset the port now
9288 */
9289 reg_data.word0 = 0;
9290 bf_set(lpfc_sliport_ctrl_end, &reg_data,
9291 LPFC_SLIPORT_LITTLE_ENDIAN);
9292 bf_set(lpfc_sliport_ctrl_ip, &reg_data,
9293 LPFC_SLIPORT_INIT_PORT);
9294 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
9295 CTRLregaddr);
9296 /* flush */
9297 pci_read_config_word(phba->pcidev,
9298 PCI_DEVICE_ID, &devid);
9299
9300 port_reset = 1;
9301 msleep(20);
9302 goto wait;
9303 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
9304 rc = -ENODEV;
9305 goto out;
9306 }
9307 break;
9308
9309 case LPFC_SLI_INTF_IF_TYPE_1:
9310 default:
9311 break;
9312 }
9313
9314 out:
9315 /* Catch the not-ready port failure after a port reset. */
9316 if (rc) {
9317 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9318 "3317 HBA not functional: IP Reset Failed "
9319 "try: echo fw_reset > board_mode\n");
9320 rc = -ENODEV;
9321 }
9322
9323 return rc;
9324 }
9325
9326 /**
9327 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
9328 * @phba: pointer to lpfc hba data structure.
9329 *
9330 * This routine is invoked to set up the PCI device memory space for device
9331 * with SLI-4 interface spec.
9332 *
9333 * Return codes
9334 * 0 - successful
9335 * other values - error
9336 **/
9337 static int
9338 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
9339 {
9340 struct pci_dev *pdev;
9341 unsigned long bar0map_len, bar1map_len, bar2map_len;
9342 int error = -ENODEV;
9343 uint32_t if_type;
9344
9345 /* Obtain PCI device reference */
9346 if (!phba->pcidev)
9347 return error;
9348 else
9349 pdev = phba->pcidev;
9350
9351 /* Set the device DMA mask size */
9352 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
9353 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
9354 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
9355 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
9356 return error;
9357 }
9358 }
9359
9360 /*
9361 * The BARs and register set definitions and offset locations are
9362 * dependent on the if_type.
9363 */
9364 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
9365 &phba->sli4_hba.sli_intf.word0)) {
9366 return error;
9367 }
9368
9369 /* There is no SLI3 failback for SLI4 devices. */
9370 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
9371 LPFC_SLI_INTF_VALID) {
9372 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9373 "2894 SLI_INTF reg contents invalid "
9374 "sli_intf reg 0x%x\n",
9375 phba->sli4_hba.sli_intf.word0);
9376 return error;
9377 }
9378
9379 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9380 /*
9381 * Get the bus address of SLI4 device Bar regions and the
9382 * number of bytes required by each mapping. The mapping of the
9383 * particular PCI BARs regions is dependent on the type of
9384 * SLI4 device.
9385 */
9386 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
9387 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
9388 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
9389
9390 /*
9391 * Map SLI4 PCI Config Space Register base to a kernel virtual
9392 * addr
9393 */
9394 phba->sli4_hba.conf_regs_memmap_p =
9395 ioremap(phba->pci_bar0_map, bar0map_len);
9396 if (!phba->sli4_hba.conf_regs_memmap_p) {
9397 dev_printk(KERN_ERR, &pdev->dev,
9398 "ioremap failed for SLI4 PCI config "
9399 "registers.\n");
9400 goto out;
9401 }
9402 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
9403 /* Set up BAR0 PCI config space register memory map */
9404 lpfc_sli4_bar0_register_memmap(phba, if_type);
9405 } else {
9406 phba->pci_bar0_map = pci_resource_start(pdev, 1);
9407 bar0map_len = pci_resource_len(pdev, 1);
9408 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
9409 dev_printk(KERN_ERR, &pdev->dev,
9410 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
9411 goto out;
9412 }
9413 phba->sli4_hba.conf_regs_memmap_p =
9414 ioremap(phba->pci_bar0_map, bar0map_len);
9415 if (!phba->sli4_hba.conf_regs_memmap_p) {
9416 dev_printk(KERN_ERR, &pdev->dev,
9417 "ioremap failed for SLI4 PCI config "
9418 "registers.\n");
9419 goto out;
9420 }
9421 lpfc_sli4_bar0_register_memmap(phba, if_type);
9422 }
9423
9424 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
9425 (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
9426 /*
9427 * Map SLI4 if type 0 HBA Control Register base to a kernel
9428 * virtual address and setup the registers.
9429 */
9430 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
9431 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9432 phba->sli4_hba.ctrl_regs_memmap_p =
9433 ioremap(phba->pci_bar1_map, bar1map_len);
9434 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
9435 dev_printk(KERN_ERR, &pdev->dev,
9436 "ioremap failed for SLI4 HBA control registers.\n");
9437 goto out_iounmap_conf;
9438 }
9439 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
9440 lpfc_sli4_bar1_register_memmap(phba);
9441 }
9442
9443 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
9444 (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
9445 /*
9446 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
9447 * virtual address and setup the registers.
9448 */
9449 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
9450 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9451 phba->sli4_hba.drbl_regs_memmap_p =
9452 ioremap(phba->pci_bar2_map, bar2map_len);
9453 if (!phba->sli4_hba.drbl_regs_memmap_p) {
9454 dev_printk(KERN_ERR, &pdev->dev,
9455 "ioremap failed for SLI4 HBA doorbell registers.\n");
9456 goto out_iounmap_ctrl;
9457 }
9458 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
9459 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
9460 if (error)
9461 goto out_iounmap_all;
9462 }
9463
9464 return 0;
9465
9466 out_iounmap_all:
9467 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9468 out_iounmap_ctrl:
9469 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9470 out_iounmap_conf:
9471 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9472 out:
9473 return error;
9474 }
9475
9476 /**
9477 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
9478 * @phba: pointer to lpfc hba data structure.
9479 *
9480 * This routine is invoked to unset the PCI device memory space for device
9481 * with SLI-4 interface spec.
9482 **/
9483 static void
9484 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
9485 {
9486 uint32_t if_type;
9487 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9488
9489 switch (if_type) {
9490 case LPFC_SLI_INTF_IF_TYPE_0:
9491 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9492 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9493 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9494 break;
9495 case LPFC_SLI_INTF_IF_TYPE_2:
9496 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9497 break;
9498 case LPFC_SLI_INTF_IF_TYPE_1:
9499 default:
9500 dev_printk(KERN_ERR, &phba->pcidev->dev,
9501 "FATAL - unsupported SLI4 interface type - %d\n",
9502 if_type);
9503 break;
9504 }
9505 }
9506
9507 /**
9508 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
9509 * @phba: pointer to lpfc hba data structure.
9510 *
9511 * This routine is invoked to enable the MSI-X interrupt vectors to device
9512 * with SLI-3 interface specs.
9513 *
9514 * Return codes
9515 * 0 - successful
9516 * other values - error
9517 **/
9518 static int
9519 lpfc_sli_enable_msix(struct lpfc_hba *phba)
9520 {
9521 int rc;
9522 LPFC_MBOXQ_t *pmb;
9523
9524 /* Set up MSI-X multi-message vectors */
9525 rc = pci_alloc_irq_vectors(phba->pcidev,
9526 LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
9527 if (rc < 0) {
9528 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9529 "0420 PCI enable MSI-X failed (%d)\n", rc);
9530 goto vec_fail_out;
9531 }
9532
9533 /*
9534 * Assign MSI-X vectors to interrupt handlers
9535 */
9536
9537 /* vector-0 is associated to slow-path handler */
9538 rc = request_irq(pci_irq_vector(phba->pcidev, 0),
9539 &lpfc_sli_sp_intr_handler, 0,
9540 LPFC_SP_DRIVER_HANDLER_NAME, phba);
9541 if (rc) {
9542 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9543 "0421 MSI-X slow-path request_irq failed "
9544 "(%d)\n", rc);
9545 goto msi_fail_out;
9546 }
9547
9548 /* vector-1 is associated to fast-path handler */
9549 rc = request_irq(pci_irq_vector(phba->pcidev, 1),
9550 &lpfc_sli_fp_intr_handler, 0,
9551 LPFC_FP_DRIVER_HANDLER_NAME, phba);
9552
9553 if (rc) {
9554 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9555 "0429 MSI-X fast-path request_irq failed "
9556 "(%d)\n", rc);
9557 goto irq_fail_out;
9558 }
9559
9560 /*
9561 * Configure HBA MSI-X attention conditions to messages
9562 */
9563 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9564
9565 if (!pmb) {
9566 rc = -ENOMEM;
9567 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9568 "0474 Unable to allocate memory for issuing "
9569 "MBOX_CONFIG_MSI command\n");
9570 goto mem_fail_out;
9571 }
9572 rc = lpfc_config_msi(phba, pmb);
9573 if (rc)
9574 goto mbx_fail_out;
9575 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9576 if (rc != MBX_SUCCESS) {
9577 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
9578 "0351 Config MSI mailbox command failed, "
9579 "mbxCmd x%x, mbxStatus x%x\n",
9580 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
9581 goto mbx_fail_out;
9582 }
9583
9584 /* Free memory allocated for mailbox command */
9585 mempool_free(pmb, phba->mbox_mem_pool);
9586 return rc;
9587
9588 mbx_fail_out:
9589 /* Free memory allocated for mailbox command */
9590 mempool_free(pmb, phba->mbox_mem_pool);
9591
9592 mem_fail_out:
9593 /* free the irq already requested */
9594 free_irq(pci_irq_vector(phba->pcidev, 1), phba);
9595
9596 irq_fail_out:
9597 /* free the irq already requested */
9598 free_irq(pci_irq_vector(phba->pcidev, 0), phba);
9599
9600 msi_fail_out:
9601 /* Unconfigure MSI-X capability structure */
9602 pci_free_irq_vectors(phba->pcidev);
9603
9604 vec_fail_out:
9605 return rc;
9606 }
9607
9608 /**
9609 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
9610 * @phba: pointer to lpfc hba data structure.
9611 *
9612 * This routine is invoked to enable the MSI interrupt mode to device with
9613 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
9614 * enable the MSI vector. The device driver is responsible for calling the
9615 * request_irq() to register MSI vector with a interrupt the handler, which
9616 * is done in this function.
9617 *
9618 * Return codes
9619 * 0 - successful
9620 * other values - error
9621 */
9622 static int
9623 lpfc_sli_enable_msi(struct lpfc_hba *phba)
9624 {
9625 int rc;
9626
9627 rc = pci_enable_msi(phba->pcidev);
9628 if (!rc)
9629 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9630 "0462 PCI enable MSI mode success.\n");
9631 else {
9632 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9633 "0471 PCI enable MSI mode failed (%d)\n", rc);
9634 return rc;
9635 }
9636
9637 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9638 0, LPFC_DRIVER_NAME, phba);
9639 if (rc) {
9640 pci_disable_msi(phba->pcidev);
9641 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9642 "0478 MSI request_irq failed (%d)\n", rc);
9643 }
9644 return rc;
9645 }
9646
9647 /**
9648 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
9649 * @phba: pointer to lpfc hba data structure.
9650 *
9651 * This routine is invoked to enable device interrupt and associate driver's
9652 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
9653 * spec. Depends on the interrupt mode configured to the driver, the driver
9654 * will try to fallback from the configured interrupt mode to an interrupt
9655 * mode which is supported by the platform, kernel, and device in the order
9656 * of:
9657 * MSI-X -> MSI -> IRQ.
9658 *
9659 * Return codes
9660 * 0 - successful
9661 * other values - error
9662 **/
9663 static uint32_t
9664 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9665 {
9666 uint32_t intr_mode = LPFC_INTR_ERROR;
9667 int retval;
9668
9669 if (cfg_mode == 2) {
9670 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
9671 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
9672 if (!retval) {
9673 /* Now, try to enable MSI-X interrupt mode */
9674 retval = lpfc_sli_enable_msix(phba);
9675 if (!retval) {
9676 /* Indicate initialization to MSI-X mode */
9677 phba->intr_type = MSIX;
9678 intr_mode = 2;
9679 }
9680 }
9681 }
9682
9683 /* Fallback to MSI if MSI-X initialization failed */
9684 if (cfg_mode >= 1 && phba->intr_type == NONE) {
9685 retval = lpfc_sli_enable_msi(phba);
9686 if (!retval) {
9687 /* Indicate initialization to MSI mode */
9688 phba->intr_type = MSI;
9689 intr_mode = 1;
9690 }
9691 }
9692
9693 /* Fallback to INTx if both MSI-X/MSI initalization failed */
9694 if (phba->intr_type == NONE) {
9695 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9696 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9697 if (!retval) {
9698 /* Indicate initialization to INTx mode */
9699 phba->intr_type = INTx;
9700 intr_mode = 0;
9701 }
9702 }
9703 return intr_mode;
9704 }
9705
9706 /**
9707 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
9708 * @phba: pointer to lpfc hba data structure.
9709 *
9710 * This routine is invoked to disable device interrupt and disassociate the
9711 * driver's interrupt handler(s) from interrupt vector(s) to device with
9712 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
9713 * release the interrupt vector(s) for the message signaled interrupt.
9714 **/
9715 static void
9716 lpfc_sli_disable_intr(struct lpfc_hba *phba)
9717 {
9718 int nr_irqs, i;
9719
9720 if (phba->intr_type == MSIX)
9721 nr_irqs = LPFC_MSIX_VECTORS;
9722 else
9723 nr_irqs = 1;
9724
9725 for (i = 0; i < nr_irqs; i++)
9726 free_irq(pci_irq_vector(phba->pcidev, i), phba);
9727 pci_free_irq_vectors(phba->pcidev);
9728
9729 /* Reset interrupt management states */
9730 phba->intr_type = NONE;
9731 phba->sli.slistat.sli_intr = 0;
9732 }
9733
9734 /**
9735 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
9736 * @phba: pointer to lpfc hba data structure.
9737 * @vectors: number of msix vectors allocated.
9738 *
9739 * The routine will figure out the CPU affinity assignment for every
9740 * MSI-X vector allocated for the HBA. The hba_eq_hdl will be updated
9741 * with a pointer to the CPU mask that defines ALL the CPUs this vector
9742 * can be associated with. If the vector can be unquely associated with
9743 * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu.
9744 * In addition, the CPU to IO channel mapping will be calculated
9745 * and the phba->sli4_hba.cpu_map array will reflect this.
9746 */
9747 static void
9748 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
9749 {
9750 struct lpfc_vector_map_info *cpup;
9751 int index = 0;
9752 int vec = 0;
9753 int cpu;
9754 #ifdef CONFIG_X86
9755 struct cpuinfo_x86 *cpuinfo;
9756 #endif
9757
9758 /* Init cpu_map array */
9759 memset(phba->sli4_hba.cpu_map, 0xff,
9760 (sizeof(struct lpfc_vector_map_info) *
9761 phba->sli4_hba.num_present_cpu));
9762
9763 /* Update CPU map with physical id and core id of each CPU */
9764 cpup = phba->sli4_hba.cpu_map;
9765 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
9766 #ifdef CONFIG_X86
9767 cpuinfo = &cpu_data(cpu);
9768 cpup->phys_id = cpuinfo->phys_proc_id;
9769 cpup->core_id = cpuinfo->cpu_core_id;
9770 #else
9771 /* No distinction between CPUs for other platforms */
9772 cpup->phys_id = 0;
9773 cpup->core_id = 0;
9774 #endif
9775 cpup->channel_id = index; /* For now round robin */
9776 cpup->irq = pci_irq_vector(phba->pcidev, vec);
9777 vec++;
9778 if (vec >= vectors)
9779 vec = 0;
9780 index++;
9781 if (index >= phba->cfg_fcp_io_channel)
9782 index = 0;
9783 cpup++;
9784 }
9785 }
9786
9787
9788 /**
9789 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
9790 * @phba: pointer to lpfc hba data structure.
9791 *
9792 * This routine is invoked to enable the MSI-X interrupt vectors to device
9793 * with SLI-4 interface spec.
9794 *
9795 * Return codes
9796 * 0 - successful
9797 * other values - error
9798 **/
9799 static int
9800 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
9801 {
9802 int vectors, rc, index;
9803 char *name;
9804
9805 /* Set up MSI-X multi-message vectors */
9806 vectors = phba->io_channel_irqs;
9807 if (phba->cfg_fof)
9808 vectors++;
9809
9810 rc = pci_alloc_irq_vectors(phba->pcidev,
9811 (phba->nvmet_support) ? 1 : 2,
9812 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
9813 if (rc < 0) {
9814 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9815 "0484 PCI enable MSI-X failed (%d)\n", rc);
9816 goto vec_fail_out;
9817 }
9818 vectors = rc;
9819
9820 /* Assign MSI-X vectors to interrupt handlers */
9821 for (index = 0; index < vectors; index++) {
9822 name = phba->sli4_hba.hba_eq_hdl[index].handler_name;
9823 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
9824 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
9825 LPFC_DRIVER_HANDLER_NAME"%d", index);
9826
9827 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9828 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9829 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1);
9830 if (phba->cfg_fof && (index == (vectors - 1)))
9831 rc = request_irq(pci_irq_vector(phba->pcidev, index),
9832 &lpfc_sli4_fof_intr_handler, 0,
9833 name,
9834 &phba->sli4_hba.hba_eq_hdl[index]);
9835 else
9836 rc = request_irq(pci_irq_vector(phba->pcidev, index),
9837 &lpfc_sli4_hba_intr_handler, 0,
9838 name,
9839 &phba->sli4_hba.hba_eq_hdl[index]);
9840 if (rc) {
9841 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9842 "0486 MSI-X fast-path (%d) "
9843 "request_irq failed (%d)\n", index, rc);
9844 goto cfg_fail_out;
9845 }
9846 }
9847
9848 if (phba->cfg_fof)
9849 vectors--;
9850
9851 if (vectors != phba->io_channel_irqs) {
9852 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9853 "3238 Reducing IO channels to match number of "
9854 "MSI-X vectors, requested %d got %d\n",
9855 phba->io_channel_irqs, vectors);
9856 if (phba->cfg_fcp_io_channel > vectors)
9857 phba->cfg_fcp_io_channel = vectors;
9858 if (phba->cfg_nvme_io_channel > vectors)
9859 phba->cfg_nvme_io_channel = vectors;
9860 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel)
9861 phba->io_channel_irqs = phba->cfg_fcp_io_channel;
9862 else
9863 phba->io_channel_irqs = phba->cfg_nvme_io_channel;
9864 }
9865 lpfc_cpu_affinity_check(phba, vectors);
9866
9867 return rc;
9868
9869 cfg_fail_out:
9870 /* free the irq already requested */
9871 for (--index; index >= 0; index--)
9872 free_irq(pci_irq_vector(phba->pcidev, index),
9873 &phba->sli4_hba.hba_eq_hdl[index]);
9874
9875 /* Unconfigure MSI-X capability structure */
9876 pci_free_irq_vectors(phba->pcidev);
9877
9878 vec_fail_out:
9879 return rc;
9880 }
9881
9882 /**
9883 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9884 * @phba: pointer to lpfc hba data structure.
9885 *
9886 * This routine is invoked to enable the MSI interrupt mode to device with
9887 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9888 * to enable the MSI vector. The device driver is responsible for calling
9889 * the request_irq() to register MSI vector with a interrupt the handler,
9890 * which is done in this function.
9891 *
9892 * Return codes
9893 * 0 - successful
9894 * other values - error
9895 **/
9896 static int
9897 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9898 {
9899 int rc, index;
9900
9901 rc = pci_enable_msi(phba->pcidev);
9902 if (!rc)
9903 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9904 "0487 PCI enable MSI mode success.\n");
9905 else {
9906 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9907 "0488 PCI enable MSI mode failed (%d)\n", rc);
9908 return rc;
9909 }
9910
9911 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9912 0, LPFC_DRIVER_NAME, phba);
9913 if (rc) {
9914 pci_disable_msi(phba->pcidev);
9915 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9916 "0490 MSI request_irq failed (%d)\n", rc);
9917 return rc;
9918 }
9919
9920 for (index = 0; index < phba->io_channel_irqs; index++) {
9921 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9922 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9923 }
9924
9925 if (phba->cfg_fof) {
9926 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9927 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9928 }
9929 return 0;
9930 }
9931
9932 /**
9933 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9934 * @phba: pointer to lpfc hba data structure.
9935 *
9936 * This routine is invoked to enable device interrupt and associate driver's
9937 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9938 * interface spec. Depends on the interrupt mode configured to the driver,
9939 * the driver will try to fallback from the configured interrupt mode to an
9940 * interrupt mode which is supported by the platform, kernel, and device in
9941 * the order of:
9942 * MSI-X -> MSI -> IRQ.
9943 *
9944 * Return codes
9945 * 0 - successful
9946 * other values - error
9947 **/
9948 static uint32_t
9949 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9950 {
9951 uint32_t intr_mode = LPFC_INTR_ERROR;
9952 int retval, idx;
9953
9954 if (cfg_mode == 2) {
9955 /* Preparation before conf_msi mbox cmd */
9956 retval = 0;
9957 if (!retval) {
9958 /* Now, try to enable MSI-X interrupt mode */
9959 retval = lpfc_sli4_enable_msix(phba);
9960 if (!retval) {
9961 /* Indicate initialization to MSI-X mode */
9962 phba->intr_type = MSIX;
9963 intr_mode = 2;
9964 }
9965 }
9966 }
9967
9968 /* Fallback to MSI if MSI-X initialization failed */
9969 if (cfg_mode >= 1 && phba->intr_type == NONE) {
9970 retval = lpfc_sli4_enable_msi(phba);
9971 if (!retval) {
9972 /* Indicate initialization to MSI mode */
9973 phba->intr_type = MSI;
9974 intr_mode = 1;
9975 }
9976 }
9977
9978 /* Fallback to INTx if both MSI-X/MSI initalization failed */
9979 if (phba->intr_type == NONE) {
9980 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9981 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9982 if (!retval) {
9983 struct lpfc_hba_eq_hdl *eqhdl;
9984
9985 /* Indicate initialization to INTx mode */
9986 phba->intr_type = INTx;
9987 intr_mode = 0;
9988
9989 for (idx = 0; idx < phba->io_channel_irqs; idx++) {
9990 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
9991 eqhdl->idx = idx;
9992 eqhdl->phba = phba;
9993 atomic_set(&eqhdl->hba_eq_in_use, 1);
9994 }
9995 if (phba->cfg_fof) {
9996 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
9997 eqhdl->idx = idx;
9998 eqhdl->phba = phba;
9999 atomic_set(&eqhdl->hba_eq_in_use, 1);
10000 }
10001 }
10002 }
10003 return intr_mode;
10004 }
10005
10006 /**
10007 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
10008 * @phba: pointer to lpfc hba data structure.
10009 *
10010 * This routine is invoked to disable device interrupt and disassociate
10011 * the driver's interrupt handler(s) from interrupt vector(s) to device
10012 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
10013 * will release the interrupt vector(s) for the message signaled interrupt.
10014 **/
10015 static void
10016 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
10017 {
10018 /* Disable the currently initialized interrupt mode */
10019 if (phba->intr_type == MSIX) {
10020 int index;
10021
10022 /* Free up MSI-X multi-message vectors */
10023 for (index = 0; index < phba->io_channel_irqs; index++)
10024 free_irq(pci_irq_vector(phba->pcidev, index),
10025 &phba->sli4_hba.hba_eq_hdl[index]);
10026
10027 if (phba->cfg_fof)
10028 free_irq(pci_irq_vector(phba->pcidev, index),
10029 &phba->sli4_hba.hba_eq_hdl[index]);
10030 } else {
10031 free_irq(phba->pcidev->irq, phba);
10032 }
10033
10034 pci_free_irq_vectors(phba->pcidev);
10035
10036 /* Reset interrupt management states */
10037 phba->intr_type = NONE;
10038 phba->sli.slistat.sli_intr = 0;
10039 }
10040
10041 /**
10042 * lpfc_unset_hba - Unset SLI3 hba device initialization
10043 * @phba: pointer to lpfc hba data structure.
10044 *
10045 * This routine is invoked to unset the HBA device initialization steps to
10046 * a device with SLI-3 interface spec.
10047 **/
10048 static void
10049 lpfc_unset_hba(struct lpfc_hba *phba)
10050 {
10051 struct lpfc_vport *vport = phba->pport;
10052 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
10053
10054 spin_lock_irq(shost->host_lock);
10055 vport->load_flag |= FC_UNLOADING;
10056 spin_unlock_irq(shost->host_lock);
10057
10058 kfree(phba->vpi_bmask);
10059 kfree(phba->vpi_ids);
10060
10061 lpfc_stop_hba_timers(phba);
10062
10063 phba->pport->work_port_events = 0;
10064
10065 lpfc_sli_hba_down(phba);
10066
10067 lpfc_sli_brdrestart(phba);
10068
10069 lpfc_sli_disable_intr(phba);
10070
10071 return;
10072 }
10073
10074 /**
10075 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
10076 * @phba: Pointer to HBA context object.
10077 *
10078 * This function is called in the SLI4 code path to wait for completion
10079 * of device's XRIs exchange busy. It will check the XRI exchange busy
10080 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
10081 * that, it will check the XRI exchange busy on outstanding FCP and ELS
10082 * I/Os every 30 seconds, log error message, and wait forever. Only when
10083 * all XRI exchange busy complete, the driver unload shall proceed with
10084 * invoking the function reset ioctl mailbox command to the CNA and the
10085 * the rest of the driver unload resource release.
10086 **/
10087 static void
10088 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
10089 {
10090 int wait_time = 0;
10091 int nvme_xri_cmpl = 1;
10092 int nvmet_xri_cmpl = 1;
10093 int fcp_xri_cmpl = 1;
10094 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10095
10096 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10097 fcp_xri_cmpl =
10098 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
10099 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10100 nvme_xri_cmpl =
10101 list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
10102 nvmet_xri_cmpl =
10103 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10104 }
10105
10106 while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl ||
10107 !nvmet_xri_cmpl) {
10108 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
10109 if (!nvme_xri_cmpl)
10110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10111 "6100 NVME XRI exchange busy "
10112 "wait time: %d seconds.\n",
10113 wait_time/1000);
10114 if (!fcp_xri_cmpl)
10115 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10116 "2877 FCP XRI exchange busy "
10117 "wait time: %d seconds.\n",
10118 wait_time/1000);
10119 if (!els_xri_cmpl)
10120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10121 "2878 ELS XRI exchange busy "
10122 "wait time: %d seconds.\n",
10123 wait_time/1000);
10124 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
10125 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
10126 } else {
10127 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
10128 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
10129 }
10130 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10131 nvme_xri_cmpl = list_empty(
10132 &phba->sli4_hba.lpfc_abts_nvme_buf_list);
10133 nvmet_xri_cmpl = list_empty(
10134 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10135 }
10136
10137 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10138 fcp_xri_cmpl = list_empty(
10139 &phba->sli4_hba.lpfc_abts_scsi_buf_list);
10140
10141 els_xri_cmpl =
10142 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10143
10144 }
10145 }
10146
10147 /**
10148 * lpfc_sli4_hba_unset - Unset the fcoe hba
10149 * @phba: Pointer to HBA context object.
10150 *
10151 * This function is called in the SLI4 code path to reset the HBA's FCoE
10152 * function. The caller is not required to hold any lock. This routine
10153 * issues PCI function reset mailbox command to reset the FCoE function.
10154 * At the end of the function, it calls lpfc_hba_down_post function to
10155 * free any pending commands.
10156 **/
10157 static void
10158 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
10159 {
10160 int wait_cnt = 0;
10161 LPFC_MBOXQ_t *mboxq;
10162 struct pci_dev *pdev = phba->pcidev;
10163
10164 lpfc_stop_hba_timers(phba);
10165 phba->sli4_hba.intr_enable = 0;
10166
10167 /*
10168 * Gracefully wait out the potential current outstanding asynchronous
10169 * mailbox command.
10170 */
10171
10172 /* First, block any pending async mailbox command from posted */
10173 spin_lock_irq(&phba->hbalock);
10174 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10175 spin_unlock_irq(&phba->hbalock);
10176 /* Now, trying to wait it out if we can */
10177 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10178 msleep(10);
10179 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
10180 break;
10181 }
10182 /* Forcefully release the outstanding mailbox command if timed out */
10183 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10184 spin_lock_irq(&phba->hbalock);
10185 mboxq = phba->sli.mbox_active;
10186 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
10187 __lpfc_mbox_cmpl_put(phba, mboxq);
10188 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10189 phba->sli.mbox_active = NULL;
10190 spin_unlock_irq(&phba->hbalock);
10191 }
10192
10193 /* Abort all iocbs associated with the hba */
10194 lpfc_sli_hba_iocb_abort(phba);
10195
10196 /* Wait for completion of device XRI exchange busy */
10197 lpfc_sli4_xri_exchange_busy_wait(phba);
10198
10199 /* Disable PCI subsystem interrupt */
10200 lpfc_sli4_disable_intr(phba);
10201
10202 /* Disable SR-IOV if enabled */
10203 if (phba->cfg_sriov_nr_virtfn)
10204 pci_disable_sriov(pdev);
10205
10206 /* Stop kthread signal shall trigger work_done one more time */
10207 kthread_stop(phba->worker_thread);
10208
10209 /* Unset the queues shared with the hardware then release all
10210 * allocated resources.
10211 */
10212 lpfc_sli4_queue_unset(phba);
10213 lpfc_sli4_queue_destroy(phba);
10214
10215 /* Reset SLI4 HBA FCoE function */
10216 lpfc_pci_function_reset(phba);
10217
10218 /* Stop the SLI4 device port */
10219 phba->pport->work_port_events = 0;
10220 }
10221
10222 /**
10223 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
10224 * @phba: Pointer to HBA context object.
10225 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10226 *
10227 * This function is called in the SLI4 code path to read the port's
10228 * sli4 capabilities.
10229 *
10230 * This function may be be called from any context that can block-wait
10231 * for the completion. The expectation is that this routine is called
10232 * typically from probe_one or from the online routine.
10233 **/
10234 int
10235 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10236 {
10237 int rc;
10238 struct lpfc_mqe *mqe;
10239 struct lpfc_pc_sli4_params *sli4_params;
10240 uint32_t mbox_tmo;
10241
10242 rc = 0;
10243 mqe = &mboxq->u.mqe;
10244
10245 /* Read the port's SLI4 Parameters port capabilities */
10246 lpfc_pc_sli4_params(mboxq);
10247 if (!phba->sli4_hba.intr_enable)
10248 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10249 else {
10250 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10251 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10252 }
10253
10254 if (unlikely(rc))
10255 return 1;
10256
10257 sli4_params = &phba->sli4_hba.pc_sli4_params;
10258 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
10259 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
10260 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
10261 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
10262 &mqe->un.sli4_params);
10263 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
10264 &mqe->un.sli4_params);
10265 sli4_params->proto_types = mqe->un.sli4_params.word3;
10266 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
10267 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
10268 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
10269 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
10270 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
10271 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
10272 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
10273 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
10274 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
10275 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
10276 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
10277 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
10278 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
10279 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
10280 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
10281 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
10282 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
10283 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
10284 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
10285 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
10286
10287 /* Make sure that sge_supp_len can be handled by the driver */
10288 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10289 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10290
10291 return rc;
10292 }
10293
10294 /**
10295 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
10296 * @phba: Pointer to HBA context object.
10297 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10298 *
10299 * This function is called in the SLI4 code path to read the port's
10300 * sli4 capabilities.
10301 *
10302 * This function may be be called from any context that can block-wait
10303 * for the completion. The expectation is that this routine is called
10304 * typically from probe_one or from the online routine.
10305 **/
10306 int
10307 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10308 {
10309 int rc;
10310 struct lpfc_mqe *mqe = &mboxq->u.mqe;
10311 struct lpfc_pc_sli4_params *sli4_params;
10312 uint32_t mbox_tmo;
10313 int length;
10314 struct lpfc_sli4_parameters *mbx_sli4_parameters;
10315
10316 /*
10317 * By default, the driver assumes the SLI4 port requires RPI
10318 * header postings. The SLI4_PARAM response will correct this
10319 * assumption.
10320 */
10321 phba->sli4_hba.rpi_hdrs_in_use = 1;
10322
10323 /* Read the port's SLI4 Config Parameters */
10324 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
10325 sizeof(struct lpfc_sli4_cfg_mhdr));
10326 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10327 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
10328 length, LPFC_SLI4_MBX_EMBED);
10329 if (!phba->sli4_hba.intr_enable)
10330 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10331 else {
10332 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10333 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10334 }
10335 if (unlikely(rc))
10336 return rc;
10337 sli4_params = &phba->sli4_hba.pc_sli4_params;
10338 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
10339 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
10340 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
10341 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
10342 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
10343 mbx_sli4_parameters);
10344 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
10345 mbx_sli4_parameters);
10346 if (bf_get(cfg_phwq, mbx_sli4_parameters))
10347 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
10348 else
10349 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
10350 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
10351 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
10352 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
10353 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
10354 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
10355 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
10356 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
10357 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
10358 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
10359 mbx_sli4_parameters);
10360 sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
10361 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
10362 mbx_sli4_parameters);
10363 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
10364 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
10365 phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
10366 bf_get(cfg_xib, mbx_sli4_parameters));
10367
10368 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) ||
10369 !phba->nvme_support) {
10370 phba->nvme_support = 0;
10371 phba->nvmet_support = 0;
10372 phba->cfg_nvmet_mrq = 0;
10373 phba->cfg_nvme_io_channel = 0;
10374 phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10375 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
10376 "6101 Disabling NVME support: "
10377 "Not supported by firmware: %d %d\n",
10378 bf_get(cfg_nvme, mbx_sli4_parameters),
10379 bf_get(cfg_xib, mbx_sli4_parameters));
10380
10381 /* If firmware doesn't support NVME, just use SCSI support */
10382 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
10383 return -ENODEV;
10384 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
10385 }
10386
10387 if (bf_get(cfg_xib, mbx_sli4_parameters) && phba->cfg_suppress_rsp)
10388 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
10389
10390 if (bf_get(cfg_eqdr, mbx_sli4_parameters))
10391 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
10392
10393 /* Make sure that sge_supp_len can be handled by the driver */
10394 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10395 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10396
10397 /*
10398 * Issue IOs with CDB embedded in WQE to minimized the number
10399 * of DMAs the firmware has to do. Setting this to 1 also forces
10400 * the driver to use 128 bytes WQEs for FCP IOs.
10401 */
10402 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
10403 phba->fcp_embed_io = 1;
10404 else
10405 phba->fcp_embed_io = 0;
10406
10407 /*
10408 * Check if the SLI port supports MDS Diagnostics
10409 */
10410 if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
10411 phba->mds_diags_support = 1;
10412 else
10413 phba->mds_diags_support = 0;
10414 return 0;
10415 }
10416
10417 /**
10418 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
10419 * @pdev: pointer to PCI device
10420 * @pid: pointer to PCI device identifier
10421 *
10422 * This routine is to be called to attach a device with SLI-3 interface spec
10423 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10424 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10425 * information of the device and driver to see if the driver state that it can
10426 * support this kind of device. If the match is successful, the driver core
10427 * invokes this routine. If this routine determines it can claim the HBA, it
10428 * does all the initialization that it needs to do to handle the HBA properly.
10429 *
10430 * Return code
10431 * 0 - driver can claim the device
10432 * negative value - driver can not claim the device
10433 **/
10434 static int
10435 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
10436 {
10437 struct lpfc_hba *phba;
10438 struct lpfc_vport *vport = NULL;
10439 struct Scsi_Host *shost = NULL;
10440 int error;
10441 uint32_t cfg_mode, intr_mode;
10442
10443 /* Allocate memory for HBA structure */
10444 phba = lpfc_hba_alloc(pdev);
10445 if (!phba)
10446 return -ENOMEM;
10447
10448 /* Perform generic PCI device enabling operation */
10449 error = lpfc_enable_pci_dev(phba);
10450 if (error)
10451 goto out_free_phba;
10452
10453 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
10454 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
10455 if (error)
10456 goto out_disable_pci_dev;
10457
10458 /* Set up SLI-3 specific device PCI memory space */
10459 error = lpfc_sli_pci_mem_setup(phba);
10460 if (error) {
10461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10462 "1402 Failed to set up pci memory space.\n");
10463 goto out_disable_pci_dev;
10464 }
10465
10466 /* Set up SLI-3 specific device driver resources */
10467 error = lpfc_sli_driver_resource_setup(phba);
10468 if (error) {
10469 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10470 "1404 Failed to set up driver resource.\n");
10471 goto out_unset_pci_mem_s3;
10472 }
10473
10474 /* Initialize and populate the iocb list per host */
10475
10476 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
10477 if (error) {
10478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10479 "1405 Failed to initialize iocb list.\n");
10480 goto out_unset_driver_resource_s3;
10481 }
10482
10483 /* Set up common device driver resources */
10484 error = lpfc_setup_driver_resource_phase2(phba);
10485 if (error) {
10486 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10487 "1406 Failed to set up driver resource.\n");
10488 goto out_free_iocb_list;
10489 }
10490
10491 /* Get the default values for Model Name and Description */
10492 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10493
10494 /* Create SCSI host to the physical port */
10495 error = lpfc_create_shost(phba);
10496 if (error) {
10497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10498 "1407 Failed to create scsi host.\n");
10499 goto out_unset_driver_resource;
10500 }
10501
10502 /* Configure sysfs attributes */
10503 vport = phba->pport;
10504 error = lpfc_alloc_sysfs_attr(vport);
10505 if (error) {
10506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10507 "1476 Failed to allocate sysfs attr\n");
10508 goto out_destroy_shost;
10509 }
10510
10511 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10512 /* Now, trying to enable interrupt and bring up the device */
10513 cfg_mode = phba->cfg_use_msi;
10514 while (true) {
10515 /* Put device to a known state before enabling interrupt */
10516 lpfc_stop_port(phba);
10517 /* Configure and enable interrupt */
10518 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
10519 if (intr_mode == LPFC_INTR_ERROR) {
10520 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10521 "0431 Failed to enable interrupt.\n");
10522 error = -ENODEV;
10523 goto out_free_sysfs_attr;
10524 }
10525 /* SLI-3 HBA setup */
10526 if (lpfc_sli_hba_setup(phba)) {
10527 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10528 "1477 Failed to set up hba\n");
10529 error = -ENODEV;
10530 goto out_remove_device;
10531 }
10532
10533 /* Wait 50ms for the interrupts of previous mailbox commands */
10534 msleep(50);
10535 /* Check active interrupts on message signaled interrupts */
10536 if (intr_mode == 0 ||
10537 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
10538 /* Log the current active interrupt mode */
10539 phba->intr_mode = intr_mode;
10540 lpfc_log_intr_mode(phba, intr_mode);
10541 break;
10542 } else {
10543 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10544 "0447 Configure interrupt mode (%d) "
10545 "failed active interrupt test.\n",
10546 intr_mode);
10547 /* Disable the current interrupt mode */
10548 lpfc_sli_disable_intr(phba);
10549 /* Try next level of interrupt mode */
10550 cfg_mode = --intr_mode;
10551 }
10552 }
10553
10554 /* Perform post initialization setup */
10555 lpfc_post_init_setup(phba);
10556
10557 /* Check if there are static vports to be created. */
10558 lpfc_create_static_vport(phba);
10559
10560 return 0;
10561
10562 out_remove_device:
10563 lpfc_unset_hba(phba);
10564 out_free_sysfs_attr:
10565 lpfc_free_sysfs_attr(vport);
10566 out_destroy_shost:
10567 lpfc_destroy_shost(phba);
10568 out_unset_driver_resource:
10569 lpfc_unset_driver_resource_phase2(phba);
10570 out_free_iocb_list:
10571 lpfc_free_iocb_list(phba);
10572 out_unset_driver_resource_s3:
10573 lpfc_sli_driver_resource_unset(phba);
10574 out_unset_pci_mem_s3:
10575 lpfc_sli_pci_mem_unset(phba);
10576 out_disable_pci_dev:
10577 lpfc_disable_pci_dev(phba);
10578 if (shost)
10579 scsi_host_put(shost);
10580 out_free_phba:
10581 lpfc_hba_free(phba);
10582 return error;
10583 }
10584
10585 /**
10586 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
10587 * @pdev: pointer to PCI device
10588 *
10589 * This routine is to be called to disattach a device with SLI-3 interface
10590 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10591 * removed from PCI bus, it performs all the necessary cleanup for the HBA
10592 * device to be removed from the PCI subsystem properly.
10593 **/
10594 static void
10595 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
10596 {
10597 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10598 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10599 struct lpfc_vport **vports;
10600 struct lpfc_hba *phba = vport->phba;
10601 int i;
10602
10603 spin_lock_irq(&phba->hbalock);
10604 vport->load_flag |= FC_UNLOADING;
10605 spin_unlock_irq(&phba->hbalock);
10606
10607 lpfc_free_sysfs_attr(vport);
10608
10609 /* Release all the vports against this physical port */
10610 vports = lpfc_create_vport_work_array(phba);
10611 if (vports != NULL)
10612 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10613 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10614 continue;
10615 fc_vport_terminate(vports[i]->fc_vport);
10616 }
10617 lpfc_destroy_vport_work_array(phba, vports);
10618
10619 /* Remove FC host and then SCSI host with the physical port */
10620 fc_remove_host(shost);
10621 scsi_remove_host(shost);
10622
10623 lpfc_cleanup(vport);
10624
10625 /*
10626 * Bring down the SLI Layer. This step disable all interrupts,
10627 * clears the rings, discards all mailbox commands, and resets
10628 * the HBA.
10629 */
10630
10631 /* HBA interrupt will be disabled after this call */
10632 lpfc_sli_hba_down(phba);
10633 /* Stop kthread signal shall trigger work_done one more time */
10634 kthread_stop(phba->worker_thread);
10635 /* Final cleanup of txcmplq and reset the HBA */
10636 lpfc_sli_brdrestart(phba);
10637
10638 kfree(phba->vpi_bmask);
10639 kfree(phba->vpi_ids);
10640
10641 lpfc_stop_hba_timers(phba);
10642 spin_lock_irq(&phba->hbalock);
10643 list_del_init(&vport->listentry);
10644 spin_unlock_irq(&phba->hbalock);
10645
10646 lpfc_debugfs_terminate(vport);
10647
10648 /* Disable SR-IOV if enabled */
10649 if (phba->cfg_sriov_nr_virtfn)
10650 pci_disable_sriov(pdev);
10651
10652 /* Disable interrupt */
10653 lpfc_sli_disable_intr(phba);
10654
10655 scsi_host_put(shost);
10656
10657 /*
10658 * Call scsi_free before mem_free since scsi bufs are released to their
10659 * corresponding pools here.
10660 */
10661 lpfc_scsi_free(phba);
10662 lpfc_mem_free_all(phba);
10663
10664 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
10665 phba->hbqslimp.virt, phba->hbqslimp.phys);
10666
10667 /* Free resources associated with SLI2 interface */
10668 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
10669 phba->slim2p.virt, phba->slim2p.phys);
10670
10671 /* unmap adapter SLIM and Control Registers */
10672 iounmap(phba->ctrl_regs_memmap_p);
10673 iounmap(phba->slim_memmap_p);
10674
10675 lpfc_hba_free(phba);
10676
10677 pci_release_mem_regions(pdev);
10678 pci_disable_device(pdev);
10679 }
10680
10681 /**
10682 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
10683 * @pdev: pointer to PCI device
10684 * @msg: power management message
10685 *
10686 * This routine is to be called from the kernel's PCI subsystem to support
10687 * system Power Management (PM) to device with SLI-3 interface spec. When
10688 * PM invokes this method, it quiesces the device by stopping the driver's
10689 * worker thread for the device, turning off device's interrupt and DMA,
10690 * and bring the device offline. Note that as the driver implements the
10691 * minimum PM requirements to a power-aware driver's PM support for the
10692 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10693 * to the suspend() method call will be treated as SUSPEND and the driver will
10694 * fully reinitialize its device during resume() method call, the driver will
10695 * set device to PCI_D3hot state in PCI config space instead of setting it
10696 * according to the @msg provided by the PM.
10697 *
10698 * Return code
10699 * 0 - driver suspended the device
10700 * Error otherwise
10701 **/
10702 static int
10703 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
10704 {
10705 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10706 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10707
10708 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10709 "0473 PCI device Power Management suspend.\n");
10710
10711 /* Bring down the device */
10712 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10713 lpfc_offline(phba);
10714 kthread_stop(phba->worker_thread);
10715
10716 /* Disable interrupt from device */
10717 lpfc_sli_disable_intr(phba);
10718
10719 /* Save device state to PCI config space */
10720 pci_save_state(pdev);
10721 pci_set_power_state(pdev, PCI_D3hot);
10722
10723 return 0;
10724 }
10725
10726 /**
10727 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
10728 * @pdev: pointer to PCI device
10729 *
10730 * This routine is to be called from the kernel's PCI subsystem to support
10731 * system Power Management (PM) to device with SLI-3 interface spec. When PM
10732 * invokes this method, it restores the device's PCI config space state and
10733 * fully reinitializes the device and brings it online. Note that as the
10734 * driver implements the minimum PM requirements to a power-aware driver's
10735 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
10736 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
10737 * driver will fully reinitialize its device during resume() method call,
10738 * the device will be set to PCI_D0 directly in PCI config space before
10739 * restoring the state.
10740 *
10741 * Return code
10742 * 0 - driver suspended the device
10743 * Error otherwise
10744 **/
10745 static int
10746 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
10747 {
10748 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10749 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10750 uint32_t intr_mode;
10751 int error;
10752
10753 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10754 "0452 PCI device Power Management resume.\n");
10755
10756 /* Restore device state from PCI config space */
10757 pci_set_power_state(pdev, PCI_D0);
10758 pci_restore_state(pdev);
10759
10760 /*
10761 * As the new kernel behavior of pci_restore_state() API call clears
10762 * device saved_state flag, need to save the restored state again.
10763 */
10764 pci_save_state(pdev);
10765
10766 if (pdev->is_busmaster)
10767 pci_set_master(pdev);
10768
10769 /* Startup the kernel thread for this host adapter. */
10770 phba->worker_thread = kthread_run(lpfc_do_work, phba,
10771 "lpfc_worker_%d", phba->brd_no);
10772 if (IS_ERR(phba->worker_thread)) {
10773 error = PTR_ERR(phba->worker_thread);
10774 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10775 "0434 PM resume failed to start worker "
10776 "thread: error=x%x.\n", error);
10777 return error;
10778 }
10779
10780 /* Configure and enable interrupt */
10781 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10782 if (intr_mode == LPFC_INTR_ERROR) {
10783 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10784 "0430 PM resume Failed to enable interrupt\n");
10785 return -EIO;
10786 } else
10787 phba->intr_mode = intr_mode;
10788
10789 /* Restart HBA and bring it online */
10790 lpfc_sli_brdrestart(phba);
10791 lpfc_online(phba);
10792
10793 /* Log the current active interrupt mode */
10794 lpfc_log_intr_mode(phba, phba->intr_mode);
10795
10796 return 0;
10797 }
10798
10799 /**
10800 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
10801 * @phba: pointer to lpfc hba data structure.
10802 *
10803 * This routine is called to prepare the SLI3 device for PCI slot recover. It
10804 * aborts all the outstanding SCSI I/Os to the pci device.
10805 **/
10806 static void
10807 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
10808 {
10809 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10810 "2723 PCI channel I/O abort preparing for recovery\n");
10811
10812 /*
10813 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10814 * and let the SCSI mid-layer to retry them to recover.
10815 */
10816 lpfc_sli_abort_fcp_rings(phba);
10817 }
10818
10819 /**
10820 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
10821 * @phba: pointer to lpfc hba data structure.
10822 *
10823 * This routine is called to prepare the SLI3 device for PCI slot reset. It
10824 * disables the device interrupt and pci device, and aborts the internal FCP
10825 * pending I/Os.
10826 **/
10827 static void
10828 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
10829 {
10830 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10831 "2710 PCI channel disable preparing for reset\n");
10832
10833 /* Block any management I/Os to the device */
10834 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
10835
10836 /* Block all SCSI devices' I/Os on the host */
10837 lpfc_scsi_dev_block(phba);
10838
10839 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10840 lpfc_sli_flush_fcp_rings(phba);
10841
10842 /* stop all timers */
10843 lpfc_stop_hba_timers(phba);
10844
10845 /* Disable interrupt and pci device */
10846 lpfc_sli_disable_intr(phba);
10847 pci_disable_device(phba->pcidev);
10848 }
10849
10850 /**
10851 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
10852 * @phba: pointer to lpfc hba data structure.
10853 *
10854 * This routine is called to prepare the SLI3 device for PCI slot permanently
10855 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10856 * pending I/Os.
10857 **/
10858 static void
10859 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10860 {
10861 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10862 "2711 PCI channel permanent disable for failure\n");
10863 /* Block all SCSI devices' I/Os on the host */
10864 lpfc_scsi_dev_block(phba);
10865
10866 /* stop all timers */
10867 lpfc_stop_hba_timers(phba);
10868
10869 /* Clean up all driver's outstanding SCSI I/Os */
10870 lpfc_sli_flush_fcp_rings(phba);
10871 }
10872
10873 /**
10874 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
10875 * @pdev: pointer to PCI device.
10876 * @state: the current PCI connection state.
10877 *
10878 * This routine is called from the PCI subsystem for I/O error handling to
10879 * device with SLI-3 interface spec. This function is called by the PCI
10880 * subsystem after a PCI bus error affecting this device has been detected.
10881 * When this function is invoked, it will need to stop all the I/Os and
10882 * interrupt(s) to the device. Once that is done, it will return
10883 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
10884 * as desired.
10885 *
10886 * Return codes
10887 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
10888 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10889 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10890 **/
10891 static pci_ers_result_t
10892 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
10893 {
10894 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10895 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10896
10897 switch (state) {
10898 case pci_channel_io_normal:
10899 /* Non-fatal error, prepare for recovery */
10900 lpfc_sli_prep_dev_for_recover(phba);
10901 return PCI_ERS_RESULT_CAN_RECOVER;
10902 case pci_channel_io_frozen:
10903 /* Fatal error, prepare for slot reset */
10904 lpfc_sli_prep_dev_for_reset(phba);
10905 return PCI_ERS_RESULT_NEED_RESET;
10906 case pci_channel_io_perm_failure:
10907 /* Permanent failure, prepare for device down */
10908 lpfc_sli_prep_dev_for_perm_failure(phba);
10909 return PCI_ERS_RESULT_DISCONNECT;
10910 default:
10911 /* Unknown state, prepare and request slot reset */
10912 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10913 "0472 Unknown PCI error state: x%x\n", state);
10914 lpfc_sli_prep_dev_for_reset(phba);
10915 return PCI_ERS_RESULT_NEED_RESET;
10916 }
10917 }
10918
10919 /**
10920 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10921 * @pdev: pointer to PCI device.
10922 *
10923 * This routine is called from the PCI subsystem for error handling to
10924 * device with SLI-3 interface spec. This is called after PCI bus has been
10925 * reset to restart the PCI card from scratch, as if from a cold-boot.
10926 * During the PCI subsystem error recovery, after driver returns
10927 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10928 * recovery and then call this routine before calling the .resume method
10929 * to recover the device. This function will initialize the HBA device,
10930 * enable the interrupt, but it will just put the HBA to offline state
10931 * without passing any I/O traffic.
10932 *
10933 * Return codes
10934 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10935 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10936 */
10937 static pci_ers_result_t
10938 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10939 {
10940 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10941 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10942 struct lpfc_sli *psli = &phba->sli;
10943 uint32_t intr_mode;
10944
10945 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10946 if (pci_enable_device_mem(pdev)) {
10947 printk(KERN_ERR "lpfc: Cannot re-enable "
10948 "PCI device after reset.\n");
10949 return PCI_ERS_RESULT_DISCONNECT;
10950 }
10951
10952 pci_restore_state(pdev);
10953
10954 /*
10955 * As the new kernel behavior of pci_restore_state() API call clears
10956 * device saved_state flag, need to save the restored state again.
10957 */
10958 pci_save_state(pdev);
10959
10960 if (pdev->is_busmaster)
10961 pci_set_master(pdev);
10962
10963 spin_lock_irq(&phba->hbalock);
10964 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10965 spin_unlock_irq(&phba->hbalock);
10966
10967 /* Configure and enable interrupt */
10968 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10969 if (intr_mode == LPFC_INTR_ERROR) {
10970 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10971 "0427 Cannot re-enable interrupt after "
10972 "slot reset.\n");
10973 return PCI_ERS_RESULT_DISCONNECT;
10974 } else
10975 phba->intr_mode = intr_mode;
10976
10977 /* Take device offline, it will perform cleanup */
10978 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10979 lpfc_offline(phba);
10980 lpfc_sli_brdrestart(phba);
10981
10982 /* Log the current active interrupt mode */
10983 lpfc_log_intr_mode(phba, phba->intr_mode);
10984
10985 return PCI_ERS_RESULT_RECOVERED;
10986 }
10987
10988 /**
10989 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10990 * @pdev: pointer to PCI device
10991 *
10992 * This routine is called from the PCI subsystem for error handling to device
10993 * with SLI-3 interface spec. It is called when kernel error recovery tells
10994 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10995 * error recovery. After this call, traffic can start to flow from this device
10996 * again.
10997 */
10998 static void
10999 lpfc_io_resume_s3(struct pci_dev *pdev)
11000 {
11001 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11002 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11003
11004 /* Bring device online, it will be no-op for non-fatal error resume */
11005 lpfc_online(phba);
11006
11007 /* Clean up Advanced Error Reporting (AER) if needed */
11008 if (phba->hba_flag & HBA_AER_ENABLED)
11009 pci_cleanup_aer_uncorrect_error_status(pdev);
11010 }
11011
11012 /**
11013 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
11014 * @phba: pointer to lpfc hba data structure.
11015 *
11016 * returns the number of ELS/CT IOCBs to reserve
11017 **/
11018 int
11019 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
11020 {
11021 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
11022
11023 if (phba->sli_rev == LPFC_SLI_REV4) {
11024 if (max_xri <= 100)
11025 return 10;
11026 else if (max_xri <= 256)
11027 return 25;
11028 else if (max_xri <= 512)
11029 return 50;
11030 else if (max_xri <= 1024)
11031 return 100;
11032 else if (max_xri <= 1536)
11033 return 150;
11034 else if (max_xri <= 2048)
11035 return 200;
11036 else
11037 return 250;
11038 } else
11039 return 0;
11040 }
11041
11042 /**
11043 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
11044 * @phba: pointer to lpfc hba data structure.
11045 *
11046 * returns the number of ELS/CT + NVMET IOCBs to reserve
11047 **/
11048 int
11049 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
11050 {
11051 int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
11052
11053 if (phba->nvmet_support)
11054 max_xri += LPFC_NVMET_BUF_POST;
11055 return max_xri;
11056 }
11057
11058
11059 /**
11060 * lpfc_write_firmware - attempt to write a firmware image to the port
11061 * @fw: pointer to firmware image returned from request_firmware.
11062 * @phba: pointer to lpfc hba data structure.
11063 *
11064 **/
11065 static void
11066 lpfc_write_firmware(const struct firmware *fw, void *context)
11067 {
11068 struct lpfc_hba *phba = (struct lpfc_hba *)context;
11069 char fwrev[FW_REV_STR_SIZE];
11070 struct lpfc_grp_hdr *image;
11071 struct list_head dma_buffer_list;
11072 int i, rc = 0;
11073 struct lpfc_dmabuf *dmabuf, *next;
11074 uint32_t offset = 0, temp_offset = 0;
11075 uint32_t magic_number, ftype, fid, fsize;
11076
11077 /* It can be null in no-wait mode, sanity check */
11078 if (!fw) {
11079 rc = -ENXIO;
11080 goto out;
11081 }
11082 image = (struct lpfc_grp_hdr *)fw->data;
11083
11084 magic_number = be32_to_cpu(image->magic_number);
11085 ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
11086 fid = bf_get_be32(lpfc_grp_hdr_id, image),
11087 fsize = be32_to_cpu(image->size);
11088
11089 INIT_LIST_HEAD(&dma_buffer_list);
11090 if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 &&
11091 magic_number != LPFC_GROUP_OJECT_MAGIC_G6) ||
11092 ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) {
11093 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11094 "3022 Invalid FW image found. "
11095 "Magic:%x Type:%x ID:%x Size %d %zd\n",
11096 magic_number, ftype, fid, fsize, fw->size);
11097 rc = -EINVAL;
11098 goto release_out;
11099 }
11100 lpfc_decode_firmware_rev(phba, fwrev, 1);
11101 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
11102 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11103 "3023 Updating Firmware, Current Version:%s "
11104 "New Version:%s\n",
11105 fwrev, image->revision);
11106 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
11107 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
11108 GFP_KERNEL);
11109 if (!dmabuf) {
11110 rc = -ENOMEM;
11111 goto release_out;
11112 }
11113 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
11114 SLI4_PAGE_SIZE,
11115 &dmabuf->phys,
11116 GFP_KERNEL);
11117 if (!dmabuf->virt) {
11118 kfree(dmabuf);
11119 rc = -ENOMEM;
11120 goto release_out;
11121 }
11122 list_add_tail(&dmabuf->list, &dma_buffer_list);
11123 }
11124 while (offset < fw->size) {
11125 temp_offset = offset;
11126 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
11127 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
11128 memcpy(dmabuf->virt,
11129 fw->data + temp_offset,
11130 fw->size - temp_offset);
11131 temp_offset = fw->size;
11132 break;
11133 }
11134 memcpy(dmabuf->virt, fw->data + temp_offset,
11135 SLI4_PAGE_SIZE);
11136 temp_offset += SLI4_PAGE_SIZE;
11137 }
11138 rc = lpfc_wr_object(phba, &dma_buffer_list,
11139 (fw->size - offset), &offset);
11140 if (rc)
11141 goto release_out;
11142 }
11143 rc = offset;
11144 }
11145
11146 release_out:
11147 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
11148 list_del(&dmabuf->list);
11149 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
11150 dmabuf->virt, dmabuf->phys);
11151 kfree(dmabuf);
11152 }
11153 release_firmware(fw);
11154 out:
11155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11156 "3024 Firmware update done: %d.\n", rc);
11157 return;
11158 }
11159
11160 /**
11161 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
11162 * @phba: pointer to lpfc hba data structure.
11163 *
11164 * This routine is called to perform Linux generic firmware upgrade on device
11165 * that supports such feature.
11166 **/
11167 int
11168 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
11169 {
11170 uint8_t file_name[ELX_MODEL_NAME_SIZE];
11171 int ret;
11172 const struct firmware *fw;
11173
11174 /* Only supported on SLI4 interface type 2 for now */
11175 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
11176 LPFC_SLI_INTF_IF_TYPE_2)
11177 return -EPERM;
11178
11179 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
11180
11181 if (fw_upgrade == INT_FW_UPGRADE) {
11182 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
11183 file_name, &phba->pcidev->dev,
11184 GFP_KERNEL, (void *)phba,
11185 lpfc_write_firmware);
11186 } else if (fw_upgrade == RUN_FW_UPGRADE) {
11187 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
11188 if (!ret)
11189 lpfc_write_firmware(fw, (void *)phba);
11190 } else {
11191 ret = -EINVAL;
11192 }
11193
11194 return ret;
11195 }
11196
11197 /**
11198 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
11199 * @pdev: pointer to PCI device
11200 * @pid: pointer to PCI device identifier
11201 *
11202 * This routine is called from the kernel's PCI subsystem to device with
11203 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11204 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11205 * information of the device and driver to see if the driver state that it
11206 * can support this kind of device. If the match is successful, the driver
11207 * core invokes this routine. If this routine determines it can claim the HBA,
11208 * it does all the initialization that it needs to do to handle the HBA
11209 * properly.
11210 *
11211 * Return code
11212 * 0 - driver can claim the device
11213 * negative value - driver can not claim the device
11214 **/
11215 static int
11216 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
11217 {
11218 struct lpfc_hba *phba;
11219 struct lpfc_vport *vport = NULL;
11220 struct Scsi_Host *shost = NULL;
11221 int error;
11222 uint32_t cfg_mode, intr_mode;
11223
11224 /* Allocate memory for HBA structure */
11225 phba = lpfc_hba_alloc(pdev);
11226 if (!phba)
11227 return -ENOMEM;
11228
11229 /* Perform generic PCI device enabling operation */
11230 error = lpfc_enable_pci_dev(phba);
11231 if (error)
11232 goto out_free_phba;
11233
11234 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
11235 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
11236 if (error)
11237 goto out_disable_pci_dev;
11238
11239 /* Set up SLI-4 specific device PCI memory space */
11240 error = lpfc_sli4_pci_mem_setup(phba);
11241 if (error) {
11242 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11243 "1410 Failed to set up pci memory space.\n");
11244 goto out_disable_pci_dev;
11245 }
11246
11247 /* Set up SLI-4 Specific device driver resources */
11248 error = lpfc_sli4_driver_resource_setup(phba);
11249 if (error) {
11250 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11251 "1412 Failed to set up driver resource.\n");
11252 goto out_unset_pci_mem_s4;
11253 }
11254
11255 INIT_LIST_HEAD(&phba->active_rrq_list);
11256 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
11257
11258 /* Set up common device driver resources */
11259 error = lpfc_setup_driver_resource_phase2(phba);
11260 if (error) {
11261 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11262 "1414 Failed to set up driver resource.\n");
11263 goto out_unset_driver_resource_s4;
11264 }
11265
11266 /* Get the default values for Model Name and Description */
11267 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11268
11269 /* Create SCSI host to the physical port */
11270 error = lpfc_create_shost(phba);
11271 if (error) {
11272 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11273 "1415 Failed to create scsi host.\n");
11274 goto out_unset_driver_resource;
11275 }
11276
11277 /* Configure sysfs attributes */
11278 vport = phba->pport;
11279 error = lpfc_alloc_sysfs_attr(vport);
11280 if (error) {
11281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11282 "1416 Failed to allocate sysfs attr\n");
11283 goto out_destroy_shost;
11284 }
11285
11286 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11287 /* Now, trying to enable interrupt and bring up the device */
11288 cfg_mode = phba->cfg_use_msi;
11289
11290 /* Put device to a known state before enabling interrupt */
11291 lpfc_stop_port(phba);
11292
11293 /* Configure and enable interrupt */
11294 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
11295 if (intr_mode == LPFC_INTR_ERROR) {
11296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11297 "0426 Failed to enable interrupt.\n");
11298 error = -ENODEV;
11299 goto out_free_sysfs_attr;
11300 }
11301 /* Default to single EQ for non-MSI-X */
11302 if (phba->intr_type != MSIX) {
11303 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
11304 phba->cfg_fcp_io_channel = 1;
11305 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11306 phba->cfg_nvme_io_channel = 1;
11307 if (phba->nvmet_support)
11308 phba->cfg_nvmet_mrq = 1;
11309 }
11310 phba->io_channel_irqs = 1;
11311 }
11312
11313 /* Set up SLI-4 HBA */
11314 if (lpfc_sli4_hba_setup(phba)) {
11315 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11316 "1421 Failed to set up hba\n");
11317 error = -ENODEV;
11318 goto out_disable_intr;
11319 }
11320
11321 /* Log the current active interrupt mode */
11322 phba->intr_mode = intr_mode;
11323 lpfc_log_intr_mode(phba, intr_mode);
11324
11325 /* Perform post initialization setup */
11326 lpfc_post_init_setup(phba);
11327
11328 /* NVME support in FW earlier in the driver load corrects the
11329 * FC4 type making a check for nvme_support unnecessary.
11330 */
11331 if ((phba->nvmet_support == 0) &&
11332 (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
11333 /* Create NVME binding with nvme_fc_transport. This
11334 * ensures the vport is initialized. If the localport
11335 * create fails, it should not unload the driver to
11336 * support field issues.
11337 */
11338 error = lpfc_nvme_create_localport(vport);
11339 if (error) {
11340 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11341 "6004 NVME registration failed, "
11342 "error x%x\n",
11343 error);
11344 }
11345 }
11346
11347 /* check for firmware upgrade or downgrade */
11348 if (phba->cfg_request_firmware_upgrade)
11349 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
11350
11351 /* Check if there are static vports to be created. */
11352 lpfc_create_static_vport(phba);
11353 return 0;
11354
11355 out_disable_intr:
11356 lpfc_sli4_disable_intr(phba);
11357 out_free_sysfs_attr:
11358 lpfc_free_sysfs_attr(vport);
11359 out_destroy_shost:
11360 lpfc_destroy_shost(phba);
11361 out_unset_driver_resource:
11362 lpfc_unset_driver_resource_phase2(phba);
11363 out_unset_driver_resource_s4:
11364 lpfc_sli4_driver_resource_unset(phba);
11365 out_unset_pci_mem_s4:
11366 lpfc_sli4_pci_mem_unset(phba);
11367 out_disable_pci_dev:
11368 lpfc_disable_pci_dev(phba);
11369 if (shost)
11370 scsi_host_put(shost);
11371 out_free_phba:
11372 lpfc_hba_free(phba);
11373 return error;
11374 }
11375
11376 /**
11377 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
11378 * @pdev: pointer to PCI device
11379 *
11380 * This routine is called from the kernel's PCI subsystem to device with
11381 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11382 * removed from PCI bus, it performs all the necessary cleanup for the HBA
11383 * device to be removed from the PCI subsystem properly.
11384 **/
11385 static void
11386 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
11387 {
11388 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11389 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11390 struct lpfc_vport **vports;
11391 struct lpfc_hba *phba = vport->phba;
11392 int i;
11393
11394 /* Mark the device unloading flag */
11395 spin_lock_irq(&phba->hbalock);
11396 vport->load_flag |= FC_UNLOADING;
11397 spin_unlock_irq(&phba->hbalock);
11398
11399 /* Free the HBA sysfs attributes */
11400 lpfc_free_sysfs_attr(vport);
11401
11402 /* Release all the vports against this physical port */
11403 vports = lpfc_create_vport_work_array(phba);
11404 if (vports != NULL)
11405 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11406 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11407 continue;
11408 fc_vport_terminate(vports[i]->fc_vport);
11409 }
11410 lpfc_destroy_vport_work_array(phba, vports);
11411
11412 /* Remove FC host and then SCSI host with the physical port */
11413 fc_remove_host(shost);
11414 scsi_remove_host(shost);
11415 /*
11416 * Bring down the SLI Layer. This step disables all interrupts,
11417 * clears the rings, discards all mailbox commands, and resets
11418 * the HBA FCoE function.
11419 */
11420 lpfc_debugfs_terminate(vport);
11421 lpfc_sli4_hba_unset(phba);
11422
11423 /* Perform ndlp cleanup on the physical port. The nvme and nvmet
11424 * localports are destroyed after to cleanup all transport memory.
11425 */
11426 lpfc_cleanup(vport);
11427 lpfc_nvmet_destroy_targetport(phba);
11428 lpfc_nvme_destroy_localport(vport);
11429
11430
11431 lpfc_stop_hba_timers(phba);
11432 spin_lock_irq(&phba->hbalock);
11433 list_del_init(&vport->listentry);
11434 spin_unlock_irq(&phba->hbalock);
11435
11436 /* Perform scsi free before driver resource_unset since scsi
11437 * buffers are released to their corresponding pools here.
11438 */
11439 lpfc_scsi_free(phba);
11440 lpfc_nvme_free(phba);
11441 lpfc_free_iocb_list(phba);
11442
11443 lpfc_sli4_driver_resource_unset(phba);
11444
11445 /* Unmap adapter Control and Doorbell registers */
11446 lpfc_sli4_pci_mem_unset(phba);
11447
11448 /* Release PCI resources and disable device's PCI function */
11449 scsi_host_put(shost);
11450 lpfc_disable_pci_dev(phba);
11451
11452 /* Finally, free the driver's device data structure */
11453 lpfc_hba_free(phba);
11454
11455 return;
11456 }
11457
11458 /**
11459 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
11460 * @pdev: pointer to PCI device
11461 * @msg: power management message
11462 *
11463 * This routine is called from the kernel's PCI subsystem to support system
11464 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
11465 * this method, it quiesces the device by stopping the driver's worker
11466 * thread for the device, turning off device's interrupt and DMA, and bring
11467 * the device offline. Note that as the driver implements the minimum PM
11468 * requirements to a power-aware driver's PM support for suspend/resume -- all
11469 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
11470 * method call will be treated as SUSPEND and the driver will fully
11471 * reinitialize its device during resume() method call, the driver will set
11472 * device to PCI_D3hot state in PCI config space instead of setting it
11473 * according to the @msg provided by the PM.
11474 *
11475 * Return code
11476 * 0 - driver suspended the device
11477 * Error otherwise
11478 **/
11479 static int
11480 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
11481 {
11482 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11483 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11484
11485 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11486 "2843 PCI device Power Management suspend.\n");
11487
11488 /* Bring down the device */
11489 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11490 lpfc_offline(phba);
11491 kthread_stop(phba->worker_thread);
11492
11493 /* Disable interrupt from device */
11494 lpfc_sli4_disable_intr(phba);
11495 lpfc_sli4_queue_destroy(phba);
11496
11497 /* Save device state to PCI config space */
11498 pci_save_state(pdev);
11499 pci_set_power_state(pdev, PCI_D3hot);
11500
11501 return 0;
11502 }
11503
11504 /**
11505 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
11506 * @pdev: pointer to PCI device
11507 *
11508 * This routine is called from the kernel's PCI subsystem to support system
11509 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
11510 * this method, it restores the device's PCI config space state and fully
11511 * reinitializes the device and brings it online. Note that as the driver
11512 * implements the minimum PM requirements to a power-aware driver's PM for
11513 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11514 * to the suspend() method call will be treated as SUSPEND and the driver
11515 * will fully reinitialize its device during resume() method call, the device
11516 * will be set to PCI_D0 directly in PCI config space before restoring the
11517 * state.
11518 *
11519 * Return code
11520 * 0 - driver suspended the device
11521 * Error otherwise
11522 **/
11523 static int
11524 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
11525 {
11526 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11527 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11528 uint32_t intr_mode;
11529 int error;
11530
11531 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11532 "0292 PCI device Power Management resume.\n");
11533
11534 /* Restore device state from PCI config space */
11535 pci_set_power_state(pdev, PCI_D0);
11536 pci_restore_state(pdev);
11537
11538 /*
11539 * As the new kernel behavior of pci_restore_state() API call clears
11540 * device saved_state flag, need to save the restored state again.
11541 */
11542 pci_save_state(pdev);
11543
11544 if (pdev->is_busmaster)
11545 pci_set_master(pdev);
11546
11547 /* Startup the kernel thread for this host adapter. */
11548 phba->worker_thread = kthread_run(lpfc_do_work, phba,
11549 "lpfc_worker_%d", phba->brd_no);
11550 if (IS_ERR(phba->worker_thread)) {
11551 error = PTR_ERR(phba->worker_thread);
11552 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11553 "0293 PM resume failed to start worker "
11554 "thread: error=x%x.\n", error);
11555 return error;
11556 }
11557
11558 /* Configure and enable interrupt */
11559 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11560 if (intr_mode == LPFC_INTR_ERROR) {
11561 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11562 "0294 PM resume Failed to enable interrupt\n");
11563 return -EIO;
11564 } else
11565 phba->intr_mode = intr_mode;
11566
11567 /* Restart HBA and bring it online */
11568 lpfc_sli_brdrestart(phba);
11569 lpfc_online(phba);
11570
11571 /* Log the current active interrupt mode */
11572 lpfc_log_intr_mode(phba, phba->intr_mode);
11573
11574 return 0;
11575 }
11576
11577 /**
11578 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
11579 * @phba: pointer to lpfc hba data structure.
11580 *
11581 * This routine is called to prepare the SLI4 device for PCI slot recover. It
11582 * aborts all the outstanding SCSI I/Os to the pci device.
11583 **/
11584 static void
11585 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
11586 {
11587 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11588 "2828 PCI channel I/O abort preparing for recovery\n");
11589 /*
11590 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11591 * and let the SCSI mid-layer to retry them to recover.
11592 */
11593 lpfc_sli_abort_fcp_rings(phba);
11594 }
11595
11596 /**
11597 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
11598 * @phba: pointer to lpfc hba data structure.
11599 *
11600 * This routine is called to prepare the SLI4 device for PCI slot reset. It
11601 * disables the device interrupt and pci device, and aborts the internal FCP
11602 * pending I/Os.
11603 **/
11604 static void
11605 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
11606 {
11607 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11608 "2826 PCI channel disable preparing for reset\n");
11609
11610 /* Block any management I/Os to the device */
11611 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
11612
11613 /* Block all SCSI devices' I/Os on the host */
11614 lpfc_scsi_dev_block(phba);
11615
11616 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11617 lpfc_sli_flush_fcp_rings(phba);
11618
11619 /* stop all timers */
11620 lpfc_stop_hba_timers(phba);
11621
11622 /* Disable interrupt and pci device */
11623 lpfc_sli4_disable_intr(phba);
11624 lpfc_sli4_queue_destroy(phba);
11625 pci_disable_device(phba->pcidev);
11626 }
11627
11628 /**
11629 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
11630 * @phba: pointer to lpfc hba data structure.
11631 *
11632 * This routine is called to prepare the SLI4 device for PCI slot permanently
11633 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11634 * pending I/Os.
11635 **/
11636 static void
11637 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11638 {
11639 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11640 "2827 PCI channel permanent disable for failure\n");
11641
11642 /* Block all SCSI devices' I/Os on the host */
11643 lpfc_scsi_dev_block(phba);
11644
11645 /* stop all timers */
11646 lpfc_stop_hba_timers(phba);
11647
11648 /* Clean up all driver's outstanding SCSI I/Os */
11649 lpfc_sli_flush_fcp_rings(phba);
11650 }
11651
11652 /**
11653 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
11654 * @pdev: pointer to PCI device.
11655 * @state: the current PCI connection state.
11656 *
11657 * This routine is called from the PCI subsystem for error handling to device
11658 * with SLI-4 interface spec. This function is called by the PCI subsystem
11659 * after a PCI bus error affecting this device has been detected. When this
11660 * function is invoked, it will need to stop all the I/Os and interrupt(s)
11661 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
11662 * for the PCI subsystem to perform proper recovery as desired.
11663 *
11664 * Return codes
11665 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11666 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11667 **/
11668 static pci_ers_result_t
11669 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
11670 {
11671 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11672 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11673
11674 switch (state) {
11675 case pci_channel_io_normal:
11676 /* Non-fatal error, prepare for recovery */
11677 lpfc_sli4_prep_dev_for_recover(phba);
11678 return PCI_ERS_RESULT_CAN_RECOVER;
11679 case pci_channel_io_frozen:
11680 /* Fatal error, prepare for slot reset */
11681 lpfc_sli4_prep_dev_for_reset(phba);
11682 return PCI_ERS_RESULT_NEED_RESET;
11683 case pci_channel_io_perm_failure:
11684 /* Permanent failure, prepare for device down */
11685 lpfc_sli4_prep_dev_for_perm_failure(phba);
11686 return PCI_ERS_RESULT_DISCONNECT;
11687 default:
11688 /* Unknown state, prepare and request slot reset */
11689 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11690 "2825 Unknown PCI error state: x%x\n", state);
11691 lpfc_sli4_prep_dev_for_reset(phba);
11692 return PCI_ERS_RESULT_NEED_RESET;
11693 }
11694 }
11695
11696 /**
11697 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
11698 * @pdev: pointer to PCI device.
11699 *
11700 * This routine is called from the PCI subsystem for error handling to device
11701 * with SLI-4 interface spec. It is called after PCI bus has been reset to
11702 * restart the PCI card from scratch, as if from a cold-boot. During the
11703 * PCI subsystem error recovery, after the driver returns
11704 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
11705 * recovery and then call this routine before calling the .resume method to
11706 * recover the device. This function will initialize the HBA device, enable
11707 * the interrupt, but it will just put the HBA to offline state without
11708 * passing any I/O traffic.
11709 *
11710 * Return codes
11711 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
11712 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11713 */
11714 static pci_ers_result_t
11715 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
11716 {
11717 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11718 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11719 struct lpfc_sli *psli = &phba->sli;
11720 uint32_t intr_mode;
11721
11722 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
11723 if (pci_enable_device_mem(pdev)) {
11724 printk(KERN_ERR "lpfc: Cannot re-enable "
11725 "PCI device after reset.\n");
11726 return PCI_ERS_RESULT_DISCONNECT;
11727 }
11728
11729 pci_restore_state(pdev);
11730
11731 /*
11732 * As the new kernel behavior of pci_restore_state() API call clears
11733 * device saved_state flag, need to save the restored state again.
11734 */
11735 pci_save_state(pdev);
11736
11737 if (pdev->is_busmaster)
11738 pci_set_master(pdev);
11739
11740 spin_lock_irq(&phba->hbalock);
11741 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
11742 spin_unlock_irq(&phba->hbalock);
11743
11744 /* Configure and enable interrupt */
11745 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11746 if (intr_mode == LPFC_INTR_ERROR) {
11747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11748 "2824 Cannot re-enable interrupt after "
11749 "slot reset.\n");
11750 return PCI_ERS_RESULT_DISCONNECT;
11751 } else
11752 phba->intr_mode = intr_mode;
11753
11754 /* Log the current active interrupt mode */
11755 lpfc_log_intr_mode(phba, phba->intr_mode);
11756
11757 return PCI_ERS_RESULT_RECOVERED;
11758 }
11759
11760 /**
11761 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
11762 * @pdev: pointer to PCI device
11763 *
11764 * This routine is called from the PCI subsystem for error handling to device
11765 * with SLI-4 interface spec. It is called when kernel error recovery tells
11766 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
11767 * error recovery. After this call, traffic can start to flow from this device
11768 * again.
11769 **/
11770 static void
11771 lpfc_io_resume_s4(struct pci_dev *pdev)
11772 {
11773 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11774 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11775
11776 /*
11777 * In case of slot reset, as function reset is performed through
11778 * mailbox command which needs DMA to be enabled, this operation
11779 * has to be moved to the io resume phase. Taking device offline
11780 * will perform the necessary cleanup.
11781 */
11782 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
11783 /* Perform device reset */
11784 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11785 lpfc_offline(phba);
11786 lpfc_sli_brdrestart(phba);
11787 /* Bring the device back online */
11788 lpfc_online(phba);
11789 }
11790
11791 /* Clean up Advanced Error Reporting (AER) if needed */
11792 if (phba->hba_flag & HBA_AER_ENABLED)
11793 pci_cleanup_aer_uncorrect_error_status(pdev);
11794 }
11795
11796 /**
11797 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
11798 * @pdev: pointer to PCI device
11799 * @pid: pointer to PCI device identifier
11800 *
11801 * This routine is to be registered to the kernel's PCI subsystem. When an
11802 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
11803 * at PCI device-specific information of the device and driver to see if the
11804 * driver state that it can support this kind of device. If the match is
11805 * successful, the driver core invokes this routine. This routine dispatches
11806 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
11807 * do all the initialization that it needs to do to handle the HBA device
11808 * properly.
11809 *
11810 * Return code
11811 * 0 - driver can claim the device
11812 * negative value - driver can not claim the device
11813 **/
11814 static int
11815 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
11816 {
11817 int rc;
11818 struct lpfc_sli_intf intf;
11819
11820 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
11821 return -ENODEV;
11822
11823 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
11824 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
11825 rc = lpfc_pci_probe_one_s4(pdev, pid);
11826 else
11827 rc = lpfc_pci_probe_one_s3(pdev, pid);
11828
11829 return rc;
11830 }
11831
11832 /**
11833 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
11834 * @pdev: pointer to PCI device
11835 *
11836 * This routine is to be registered to the kernel's PCI subsystem. When an
11837 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
11838 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
11839 * remove routine, which will perform all the necessary cleanup for the
11840 * device to be removed from the PCI subsystem properly.
11841 **/
11842 static void
11843 lpfc_pci_remove_one(struct pci_dev *pdev)
11844 {
11845 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11846 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11847
11848 switch (phba->pci_dev_grp) {
11849 case LPFC_PCI_DEV_LP:
11850 lpfc_pci_remove_one_s3(pdev);
11851 break;
11852 case LPFC_PCI_DEV_OC:
11853 lpfc_pci_remove_one_s4(pdev);
11854 break;
11855 default:
11856 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11857 "1424 Invalid PCI device group: 0x%x\n",
11858 phba->pci_dev_grp);
11859 break;
11860 }
11861 return;
11862 }
11863
11864 /**
11865 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
11866 * @pdev: pointer to PCI device
11867 * @msg: power management message
11868 *
11869 * This routine is to be registered to the kernel's PCI subsystem to support
11870 * system Power Management (PM). When PM invokes this method, it dispatches
11871 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
11872 * suspend the device.
11873 *
11874 * Return code
11875 * 0 - driver suspended the device
11876 * Error otherwise
11877 **/
11878 static int
11879 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
11880 {
11881 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11882 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11883 int rc = -ENODEV;
11884
11885 switch (phba->pci_dev_grp) {
11886 case LPFC_PCI_DEV_LP:
11887 rc = lpfc_pci_suspend_one_s3(pdev, msg);
11888 break;
11889 case LPFC_PCI_DEV_OC:
11890 rc = lpfc_pci_suspend_one_s4(pdev, msg);
11891 break;
11892 default:
11893 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11894 "1425 Invalid PCI device group: 0x%x\n",
11895 phba->pci_dev_grp);
11896 break;
11897 }
11898 return rc;
11899 }
11900
11901 /**
11902 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
11903 * @pdev: pointer to PCI device
11904 *
11905 * This routine is to be registered to the kernel's PCI subsystem to support
11906 * system Power Management (PM). When PM invokes this method, it dispatches
11907 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
11908 * resume the device.
11909 *
11910 * Return code
11911 * 0 - driver suspended the device
11912 * Error otherwise
11913 **/
11914 static int
11915 lpfc_pci_resume_one(struct pci_dev *pdev)
11916 {
11917 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11918 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11919 int rc = -ENODEV;
11920
11921 switch (phba->pci_dev_grp) {
11922 case LPFC_PCI_DEV_LP:
11923 rc = lpfc_pci_resume_one_s3(pdev);
11924 break;
11925 case LPFC_PCI_DEV_OC:
11926 rc = lpfc_pci_resume_one_s4(pdev);
11927 break;
11928 default:
11929 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11930 "1426 Invalid PCI device group: 0x%x\n",
11931 phba->pci_dev_grp);
11932 break;
11933 }
11934 return rc;
11935 }
11936
11937 /**
11938 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
11939 * @pdev: pointer to PCI device.
11940 * @state: the current PCI connection state.
11941 *
11942 * This routine is registered to the PCI subsystem for error handling. This
11943 * function is called by the PCI subsystem after a PCI bus error affecting
11944 * this device has been detected. When this routine is invoked, it dispatches
11945 * the action to the proper SLI-3 or SLI-4 device error detected handling
11946 * routine, which will perform the proper error detected operation.
11947 *
11948 * Return codes
11949 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11950 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11951 **/
11952 static pci_ers_result_t
11953 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11954 {
11955 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11956 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11957 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11958
11959 switch (phba->pci_dev_grp) {
11960 case LPFC_PCI_DEV_LP:
11961 rc = lpfc_io_error_detected_s3(pdev, state);
11962 break;
11963 case LPFC_PCI_DEV_OC:
11964 rc = lpfc_io_error_detected_s4(pdev, state);
11965 break;
11966 default:
11967 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11968 "1427 Invalid PCI device group: 0x%x\n",
11969 phba->pci_dev_grp);
11970 break;
11971 }
11972 return rc;
11973 }
11974
11975 /**
11976 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11977 * @pdev: pointer to PCI device.
11978 *
11979 * This routine is registered to the PCI subsystem for error handling. This
11980 * function is called after PCI bus has been reset to restart the PCI card
11981 * from scratch, as if from a cold-boot. When this routine is invoked, it
11982 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11983 * routine, which will perform the proper device reset.
11984 *
11985 * Return codes
11986 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
11987 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11988 **/
11989 static pci_ers_result_t
11990 lpfc_io_slot_reset(struct pci_dev *pdev)
11991 {
11992 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11993 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11994 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11995
11996 switch (phba->pci_dev_grp) {
11997 case LPFC_PCI_DEV_LP:
11998 rc = lpfc_io_slot_reset_s3(pdev);
11999 break;
12000 case LPFC_PCI_DEV_OC:
12001 rc = lpfc_io_slot_reset_s4(pdev);
12002 break;
12003 default:
12004 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12005 "1428 Invalid PCI device group: 0x%x\n",
12006 phba->pci_dev_grp);
12007 break;
12008 }
12009 return rc;
12010 }
12011
12012 /**
12013 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
12014 * @pdev: pointer to PCI device
12015 *
12016 * This routine is registered to the PCI subsystem for error handling. It
12017 * is called when kernel error recovery tells the lpfc driver that it is
12018 * OK to resume normal PCI operation after PCI bus error recovery. When
12019 * this routine is invoked, it dispatches the action to the proper SLI-3
12020 * or SLI-4 device io_resume routine, which will resume the device operation.
12021 **/
12022 static void
12023 lpfc_io_resume(struct pci_dev *pdev)
12024 {
12025 struct Scsi_Host *shost = pci_get_drvdata(pdev);
12026 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12027
12028 switch (phba->pci_dev_grp) {
12029 case LPFC_PCI_DEV_LP:
12030 lpfc_io_resume_s3(pdev);
12031 break;
12032 case LPFC_PCI_DEV_OC:
12033 lpfc_io_resume_s4(pdev);
12034 break;
12035 default:
12036 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12037 "1429 Invalid PCI device group: 0x%x\n",
12038 phba->pci_dev_grp);
12039 break;
12040 }
12041 return;
12042 }
12043
12044 /**
12045 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
12046 * @phba: pointer to lpfc hba data structure.
12047 *
12048 * This routine checks to see if OAS is supported for this adapter. If
12049 * supported, the configure Flash Optimized Fabric flag is set. Otherwise,
12050 * the enable oas flag is cleared and the pool created for OAS device data
12051 * is destroyed.
12052 *
12053 **/
12054 void
12055 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
12056 {
12057
12058 if (!phba->cfg_EnableXLane)
12059 return;
12060
12061 if (phba->sli4_hba.pc_sli4_params.oas_supported) {
12062 phba->cfg_fof = 1;
12063 } else {
12064 phba->cfg_fof = 0;
12065 if (phba->device_data_mem_pool)
12066 mempool_destroy(phba->device_data_mem_pool);
12067 phba->device_data_mem_pool = NULL;
12068 }
12069
12070 return;
12071 }
12072
12073 /**
12074 * lpfc_fof_queue_setup - Set up all the fof queues
12075 * @phba: pointer to lpfc hba data structure.
12076 *
12077 * This routine is invoked to set up all the fof queues for the FC HBA
12078 * operation.
12079 *
12080 * Return codes
12081 * 0 - successful
12082 * -ENOMEM - No available memory
12083 **/
12084 int
12085 lpfc_fof_queue_setup(struct lpfc_hba *phba)
12086 {
12087 struct lpfc_sli_ring *pring;
12088 int rc;
12089
12090 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
12091 if (rc)
12092 return -ENOMEM;
12093
12094 if (phba->cfg_fof) {
12095
12096 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
12097 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
12098 if (rc)
12099 goto out_oas_cq;
12100
12101 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
12102 phba->sli4_hba.oas_cq, LPFC_FCP);
12103 if (rc)
12104 goto out_oas_wq;
12105
12106 /* Bind this CQ/WQ to the NVME ring */
12107 pring = phba->sli4_hba.oas_wq->pring;
12108 pring->sli.sli4.wqp =
12109 (void *)phba->sli4_hba.oas_wq;
12110 phba->sli4_hba.oas_cq->pring = pring;
12111 }
12112
12113 return 0;
12114
12115 out_oas_wq:
12116 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
12117 out_oas_cq:
12118 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
12119 return rc;
12120
12121 }
12122
12123 /**
12124 * lpfc_fof_queue_create - Create all the fof queues
12125 * @phba: pointer to lpfc hba data structure.
12126 *
12127 * This routine is invoked to allocate all the fof queues for the FC HBA
12128 * operation. For each SLI4 queue type, the parameters such as queue entry
12129 * count (queue depth) shall be taken from the module parameter. For now,
12130 * we just use some constant number as place holder.
12131 *
12132 * Return codes
12133 * 0 - successful
12134 * -ENOMEM - No availble memory
12135 * -EIO - The mailbox failed to complete successfully.
12136 **/
12137 int
12138 lpfc_fof_queue_create(struct lpfc_hba *phba)
12139 {
12140 struct lpfc_queue *qdesc;
12141 uint32_t wqesize;
12142
12143 /* Create FOF EQ */
12144 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
12145 phba->sli4_hba.eq_ecount);
12146 if (!qdesc)
12147 goto out_error;
12148
12149 phba->sli4_hba.fof_eq = qdesc;
12150
12151 if (phba->cfg_fof) {
12152
12153 /* Create OAS CQ */
12154 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
12155 phba->sli4_hba.cq_ecount);
12156 if (!qdesc)
12157 goto out_error;
12158
12159 phba->sli4_hba.oas_cq = qdesc;
12160
12161 /* Create OAS WQ */
12162 wqesize = (phba->fcp_embed_io) ?
12163 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
12164 qdesc = lpfc_sli4_queue_alloc(phba, wqesize,
12165 phba->sli4_hba.wq_ecount);
12166
12167 if (!qdesc)
12168 goto out_error;
12169
12170 phba->sli4_hba.oas_wq = qdesc;
12171 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
12172
12173 }
12174 return 0;
12175
12176 out_error:
12177 lpfc_fof_queue_destroy(phba);
12178 return -ENOMEM;
12179 }
12180
12181 /**
12182 * lpfc_fof_queue_destroy - Destroy all the fof queues
12183 * @phba: pointer to lpfc hba data structure.
12184 *
12185 * This routine is invoked to release all the SLI4 queues with the FC HBA
12186 * operation.
12187 *
12188 * Return codes
12189 * 0 - successful
12190 **/
12191 int
12192 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
12193 {
12194 /* Release FOF Event queue */
12195 if (phba->sli4_hba.fof_eq != NULL) {
12196 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
12197 phba->sli4_hba.fof_eq = NULL;
12198 }
12199
12200 /* Release OAS Completion queue */
12201 if (phba->sli4_hba.oas_cq != NULL) {
12202 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
12203 phba->sli4_hba.oas_cq = NULL;
12204 }
12205
12206 /* Release OAS Work queue */
12207 if (phba->sli4_hba.oas_wq != NULL) {
12208 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
12209 phba->sli4_hba.oas_wq = NULL;
12210 }
12211 return 0;
12212 }
12213
12214 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
12215
12216 static const struct pci_error_handlers lpfc_err_handler = {
12217 .error_detected = lpfc_io_error_detected,
12218 .slot_reset = lpfc_io_slot_reset,
12219 .resume = lpfc_io_resume,
12220 };
12221
12222 static struct pci_driver lpfc_driver = {
12223 .name = LPFC_DRIVER_NAME,
12224 .id_table = lpfc_id_table,
12225 .probe = lpfc_pci_probe_one,
12226 .remove = lpfc_pci_remove_one,
12227 .shutdown = lpfc_pci_remove_one,
12228 .suspend = lpfc_pci_suspend_one,
12229 .resume = lpfc_pci_resume_one,
12230 .err_handler = &lpfc_err_handler,
12231 };
12232
12233 static const struct file_operations lpfc_mgmt_fop = {
12234 .owner = THIS_MODULE,
12235 };
12236
12237 static struct miscdevice lpfc_mgmt_dev = {
12238 .minor = MISC_DYNAMIC_MINOR,
12239 .name = "lpfcmgmt",
12240 .fops = &lpfc_mgmt_fop,
12241 };
12242
12243 /**
12244 * lpfc_init - lpfc module initialization routine
12245 *
12246 * This routine is to be invoked when the lpfc module is loaded into the
12247 * kernel. The special kernel macro module_init() is used to indicate the
12248 * role of this routine to the kernel as lpfc module entry point.
12249 *
12250 * Return codes
12251 * 0 - successful
12252 * -ENOMEM - FC attach transport failed
12253 * all others - failed
12254 */
12255 static int __init
12256 lpfc_init(void)
12257 {
12258 int error = 0;
12259
12260 printk(LPFC_MODULE_DESC "\n");
12261 printk(LPFC_COPYRIGHT "\n");
12262
12263 error = misc_register(&lpfc_mgmt_dev);
12264 if (error)
12265 printk(KERN_ERR "Could not register lpfcmgmt device, "
12266 "misc_register returned with status %d", error);
12267
12268 lpfc_transport_functions.vport_create = lpfc_vport_create;
12269 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
12270 lpfc_transport_template =
12271 fc_attach_transport(&lpfc_transport_functions);
12272 if (lpfc_transport_template == NULL)
12273 return -ENOMEM;
12274 lpfc_vport_transport_template =
12275 fc_attach_transport(&lpfc_vport_transport_functions);
12276 if (lpfc_vport_transport_template == NULL) {
12277 fc_release_transport(lpfc_transport_template);
12278 return -ENOMEM;
12279 }
12280
12281 /* Initialize in case vector mapping is needed */
12282 lpfc_used_cpu = NULL;
12283 lpfc_present_cpu = num_present_cpus();
12284
12285 error = pci_register_driver(&lpfc_driver);
12286 if (error) {
12287 fc_release_transport(lpfc_transport_template);
12288 fc_release_transport(lpfc_vport_transport_template);
12289 }
12290
12291 return error;
12292 }
12293
12294 /**
12295 * lpfc_exit - lpfc module removal routine
12296 *
12297 * This routine is invoked when the lpfc module is removed from the kernel.
12298 * The special kernel macro module_exit() is used to indicate the role of
12299 * this routine to the kernel as lpfc module exit point.
12300 */
12301 static void __exit
12302 lpfc_exit(void)
12303 {
12304 misc_deregister(&lpfc_mgmt_dev);
12305 pci_unregister_driver(&lpfc_driver);
12306 fc_release_transport(lpfc_transport_template);
12307 fc_release_transport(lpfc_vport_transport_template);
12308 if (_dump_buf_data) {
12309 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
12310 "_dump_buf_data at 0x%p\n",
12311 (1L << _dump_buf_data_order), _dump_buf_data);
12312 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
12313 }
12314
12315 if (_dump_buf_dif) {
12316 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
12317 "_dump_buf_dif at 0x%p\n",
12318 (1L << _dump_buf_dif_order), _dump_buf_dif);
12319 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
12320 }
12321 kfree(lpfc_used_cpu);
12322 idr_destroy(&lpfc_hba_index);
12323 }
12324
12325 module_init(lpfc_init);
12326 module_exit(lpfc_exit);
12327 MODULE_LICENSE("GPL");
12328 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
12329 MODULE_AUTHOR("Broadcom");
12330 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
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