Version:  2.0.40 2.2.26 2.4.37 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5

Linux/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) 2004-2015 Emulex.  All rights reserved.           *
  5  * EMULEX and SLI are trademarks of Emulex.                        *
  6  * www.emulex.com                                                  *
  7  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
  8  *                                                                 *
  9  * This program is free software; you can redistribute it and/or   *
 10  * modify it under the terms of version 2 of the GNU General       *
 11  * Public License as published by the Free Software Foundation.    *
 12  * This program is distributed in the hope that it will be useful. *
 13  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
 14  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
 15  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
 16  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
 17  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
 18  * more details, a copy of which can be found in the file COPYING  *
 19  * included with this package.                                     *
 20  *******************************************************************/
 21 
 22 #include <linux/blkdev.h>
 23 #include <linux/delay.h>
 24 #include <linux/dma-mapping.h>
 25 #include <linux/idr.h>
 26 #include <linux/interrupt.h>
 27 #include <linux/module.h>
 28 #include <linux/kthread.h>
 29 #include <linux/pci.h>
 30 #include <linux/spinlock.h>
 31 #include <linux/ctype.h>
 32 #include <linux/aer.h>
 33 #include <linux/slab.h>
 34 #include <linux/firmware.h>
 35 #include <linux/miscdevice.h>
 36 #include <linux/percpu.h>
 37 
 38 #include <scsi/scsi.h>
 39 #include <scsi/scsi_device.h>
 40 #include <scsi/scsi_host.h>
 41 #include <scsi/scsi_transport_fc.h>
 42 
 43 #include "lpfc_hw4.h"
 44 #include "lpfc_hw.h"
 45 #include "lpfc_sli.h"
 46 #include "lpfc_sli4.h"
 47 #include "lpfc_nl.h"
 48 #include "lpfc_disc.h"
 49 #include "lpfc_scsi.h"
 50 #include "lpfc.h"
 51 #include "lpfc_logmsg.h"
 52 #include "lpfc_crtn.h"
 53 #include "lpfc_vport.h"
 54 #include "lpfc_version.h"
 55 
 56 char *_dump_buf_data;
 57 unsigned long _dump_buf_data_order;
 58 char *_dump_buf_dif;
 59 unsigned long _dump_buf_dif_order;
 60 spinlock_t _dump_buf_lock;
 61 
 62 /* Used when mapping IRQ vectors in a driver centric manner */
 63 uint16_t *lpfc_used_cpu;
 64 uint32_t lpfc_present_cpu;
 65 
 66 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
 67 static int lpfc_post_rcv_buf(struct lpfc_hba *);
 68 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
 69 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
 70 static int lpfc_setup_endian_order(struct lpfc_hba *);
 71 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
 72 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
 73 static void lpfc_init_sgl_list(struct lpfc_hba *);
 74 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
 75 static void lpfc_free_active_sgl(struct lpfc_hba *);
 76 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
 77 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
 78 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
 79 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
 80 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
 81 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
 82 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
 83 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
 84 
 85 static struct scsi_transport_template *lpfc_transport_template = NULL;
 86 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
 87 static DEFINE_IDR(lpfc_hba_index);
 88 
 89 /**
 90  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 91  * @phba: pointer to lpfc hba data structure.
 92  *
 93  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 94  * mailbox command. It retrieves the revision information from the HBA and
 95  * collects the Vital Product Data (VPD) about the HBA for preparing the
 96  * configuration of the HBA.
 97  *
 98  * Return codes:
 99  *   0 - success.
100  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
101  *   Any other value - indicates an error.
102  **/
103 int
104 lpfc_config_port_prep(struct lpfc_hba *phba)
105 {
106         lpfc_vpd_t *vp = &phba->vpd;
107         int i = 0, rc;
108         LPFC_MBOXQ_t *pmb;
109         MAILBOX_t *mb;
110         char *lpfc_vpd_data = NULL;
111         uint16_t offset = 0;
112         static char licensed[56] =
113                     "key unlock for use with gnu public licensed code only\0";
114         static int init_key = 1;
115 
116         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
117         if (!pmb) {
118                 phba->link_state = LPFC_HBA_ERROR;
119                 return -ENOMEM;
120         }
121 
122         mb = &pmb->u.mb;
123         phba->link_state = LPFC_INIT_MBX_CMDS;
124 
125         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
126                 if (init_key) {
127                         uint32_t *ptext = (uint32_t *) licensed;
128 
129                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
130                                 *ptext = cpu_to_be32(*ptext);
131                         init_key = 0;
132                 }
133 
134                 lpfc_read_nv(phba, pmb);
135                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
136                         sizeof (mb->un.varRDnvp.rsvd3));
137                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
138                          sizeof (licensed));
139 
140                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
141 
142                 if (rc != MBX_SUCCESS) {
143                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
144                                         "0324 Config Port initialization "
145                                         "error, mbxCmd x%x READ_NVPARM, "
146                                         "mbxStatus x%x\n",
147                                         mb->mbxCommand, mb->mbxStatus);
148                         mempool_free(pmb, phba->mbox_mem_pool);
149                         return -ERESTART;
150                 }
151                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
152                        sizeof(phba->wwnn));
153                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
154                        sizeof(phba->wwpn));
155         }
156 
157         phba->sli3_options = 0x0;
158 
159         /* Setup and issue mailbox READ REV command */
160         lpfc_read_rev(phba, pmb);
161         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
162         if (rc != MBX_SUCCESS) {
163                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
164                                 "0439 Adapter failed to init, mbxCmd x%x "
165                                 "READ_REV, mbxStatus x%x\n",
166                                 mb->mbxCommand, mb->mbxStatus);
167                 mempool_free( pmb, phba->mbox_mem_pool);
168                 return -ERESTART;
169         }
170 
171 
172         /*
173          * The value of rr must be 1 since the driver set the cv field to 1.
174          * This setting requires the FW to set all revision fields.
175          */
176         if (mb->un.varRdRev.rr == 0) {
177                 vp->rev.rBit = 0;
178                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
179                                 "0440 Adapter failed to init, READ_REV has "
180                                 "missing revision information.\n");
181                 mempool_free(pmb, phba->mbox_mem_pool);
182                 return -ERESTART;
183         }
184 
185         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
186                 mempool_free(pmb, phba->mbox_mem_pool);
187                 return -EINVAL;
188         }
189 
190         /* Save information as VPD data */
191         vp->rev.rBit = 1;
192         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
193         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
194         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
195         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
196         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
197         vp->rev.biuRev = mb->un.varRdRev.biuRev;
198         vp->rev.smRev = mb->un.varRdRev.smRev;
199         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
200         vp->rev.endecRev = mb->un.varRdRev.endecRev;
201         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
202         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
203         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
204         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
205         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
206         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
207 
208         /* If the sli feature level is less then 9, we must
209          * tear down all RPIs and VPIs on link down if NPIV
210          * is enabled.
211          */
212         if (vp->rev.feaLevelHigh < 9)
213                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
214 
215         if (lpfc_is_LC_HBA(phba->pcidev->device))
216                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
217                                                 sizeof (phba->RandomData));
218 
219         /* Get adapter VPD information */
220         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
221         if (!lpfc_vpd_data)
222                 goto out_free_mbox;
223         do {
224                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
225                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
226 
227                 if (rc != MBX_SUCCESS) {
228                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
229                                         "0441 VPD not present on adapter, "
230                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
231                                         mb->mbxCommand, mb->mbxStatus);
232                         mb->un.varDmp.word_cnt = 0;
233                 }
234                 /* dump mem may return a zero when finished or we got a
235                  * mailbox error, either way we are done.
236                  */
237                 if (mb->un.varDmp.word_cnt == 0)
238                         break;
239                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
240                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
241                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
242                                       lpfc_vpd_data + offset,
243                                       mb->un.varDmp.word_cnt);
244                 offset += mb->un.varDmp.word_cnt;
245         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
246         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
247 
248         kfree(lpfc_vpd_data);
249 out_free_mbox:
250         mempool_free(pmb, phba->mbox_mem_pool);
251         return 0;
252 }
253 
254 /**
255  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
256  * @phba: pointer to lpfc hba data structure.
257  * @pmboxq: pointer to the driver internal queue element for mailbox command.
258  *
259  * This is the completion handler for driver's configuring asynchronous event
260  * mailbox command to the device. If the mailbox command returns successfully,
261  * it will set internal async event support flag to 1; otherwise, it will
262  * set internal async event support flag to 0.
263  **/
264 static void
265 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
266 {
267         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
268                 phba->temp_sensor_support = 1;
269         else
270                 phba->temp_sensor_support = 0;
271         mempool_free(pmboxq, phba->mbox_mem_pool);
272         return;
273 }
274 
275 /**
276  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
277  * @phba: pointer to lpfc hba data structure.
278  * @pmboxq: pointer to the driver internal queue element for mailbox command.
279  *
280  * This is the completion handler for dump mailbox command for getting
281  * wake up parameters. When this command complete, the response contain
282  * Option rom version of the HBA. This function translate the version number
283  * into a human readable string and store it in OptionROMVersion.
284  **/
285 static void
286 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
287 {
288         struct prog_id *prg;
289         uint32_t prog_id_word;
290         char dist = ' ';
291         /* character array used for decoding dist type. */
292         char dist_char[] = "nabx";
293 
294         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
295                 mempool_free(pmboxq, phba->mbox_mem_pool);
296                 return;
297         }
298 
299         prg = (struct prog_id *) &prog_id_word;
300 
301         /* word 7 contain option rom version */
302         prog_id_word = pmboxq->u.mb.un.varWords[7];
303 
304         /* Decode the Option rom version word to a readable string */
305         if (prg->dist < 4)
306                 dist = dist_char[prg->dist];
307 
308         if ((prg->dist == 3) && (prg->num == 0))
309                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
310                         prg->ver, prg->rev, prg->lev);
311         else
312                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
313                         prg->ver, prg->rev, prg->lev,
314                         dist, prg->num);
315         mempool_free(pmboxq, phba->mbox_mem_pool);
316         return;
317 }
318 
319 /**
320  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
321  *      cfg_soft_wwnn, cfg_soft_wwpn
322  * @vport: pointer to lpfc vport data structure.
323  *
324  *
325  * Return codes
326  *   None.
327  **/
328 void
329 lpfc_update_vport_wwn(struct lpfc_vport *vport)
330 {
331         /* If the soft name exists then update it using the service params */
332         if (vport->phba->cfg_soft_wwnn)
333                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
334                            vport->fc_sparam.nodeName.u.wwn);
335         if (vport->phba->cfg_soft_wwpn)
336                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
337                            vport->fc_sparam.portName.u.wwn);
338 
339         /*
340          * If the name is empty or there exists a soft name
341          * then copy the service params name, otherwise use the fc name
342          */
343         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
344                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
345                         sizeof(struct lpfc_name));
346         else
347                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
348                         sizeof(struct lpfc_name));
349 
350         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
351                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
352                         sizeof(struct lpfc_name));
353         else
354                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
355                         sizeof(struct lpfc_name));
356 }
357 
358 /**
359  * lpfc_config_port_post - Perform lpfc initialization after config port
360  * @phba: pointer to lpfc hba data structure.
361  *
362  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
363  * command call. It performs all internal resource and state setups on the
364  * port: post IOCB buffers, enable appropriate host interrupt attentions,
365  * ELS ring timers, etc.
366  *
367  * Return codes
368  *   0 - success.
369  *   Any other value - error.
370  **/
371 int
372 lpfc_config_port_post(struct lpfc_hba *phba)
373 {
374         struct lpfc_vport *vport = phba->pport;
375         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
376         LPFC_MBOXQ_t *pmb;
377         MAILBOX_t *mb;
378         struct lpfc_dmabuf *mp;
379         struct lpfc_sli *psli = &phba->sli;
380         uint32_t status, timeout;
381         int i, j;
382         int rc;
383 
384         spin_lock_irq(&phba->hbalock);
385         /*
386          * If the Config port completed correctly the HBA is not
387          * over heated any more.
388          */
389         if (phba->over_temp_state == HBA_OVER_TEMP)
390                 phba->over_temp_state = HBA_NORMAL_TEMP;
391         spin_unlock_irq(&phba->hbalock);
392 
393         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
394         if (!pmb) {
395                 phba->link_state = LPFC_HBA_ERROR;
396                 return -ENOMEM;
397         }
398         mb = &pmb->u.mb;
399 
400         /* Get login parameters for NID.  */
401         rc = lpfc_read_sparam(phba, pmb, 0);
402         if (rc) {
403                 mempool_free(pmb, phba->mbox_mem_pool);
404                 return -ENOMEM;
405         }
406 
407         pmb->vport = vport;
408         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
409                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
410                                 "0448 Adapter failed init, mbxCmd x%x "
411                                 "READ_SPARM mbxStatus x%x\n",
412                                 mb->mbxCommand, mb->mbxStatus);
413                 phba->link_state = LPFC_HBA_ERROR;
414                 mp = (struct lpfc_dmabuf *) pmb->context1;
415                 mempool_free(pmb, phba->mbox_mem_pool);
416                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
417                 kfree(mp);
418                 return -EIO;
419         }
420 
421         mp = (struct lpfc_dmabuf *) pmb->context1;
422 
423         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
424         lpfc_mbuf_free(phba, mp->virt, mp->phys);
425         kfree(mp);
426         pmb->context1 = NULL;
427         lpfc_update_vport_wwn(vport);
428 
429         /* Update the fc_host data structures with new wwn. */
430         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
431         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
432         fc_host_max_npiv_vports(shost) = phba->max_vpi;
433 
434         /* If no serial number in VPD data, use low 6 bytes of WWNN */
435         /* This should be consolidated into parse_vpd ? - mr */
436         if (phba->SerialNumber[0] == 0) {
437                 uint8_t *outptr;
438 
439                 outptr = &vport->fc_nodename.u.s.IEEE[0];
440                 for (i = 0; i < 12; i++) {
441                         status = *outptr++;
442                         j = ((status & 0xf0) >> 4);
443                         if (j <= 9)
444                                 phba->SerialNumber[i] =
445                                     (char)((uint8_t) 0x30 + (uint8_t) j);
446                         else
447                                 phba->SerialNumber[i] =
448                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
449                         i++;
450                         j = (status & 0xf);
451                         if (j <= 9)
452                                 phba->SerialNumber[i] =
453                                     (char)((uint8_t) 0x30 + (uint8_t) j);
454                         else
455                                 phba->SerialNumber[i] =
456                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
457                 }
458         }
459 
460         lpfc_read_config(phba, pmb);
461         pmb->vport = vport;
462         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
463                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
464                                 "0453 Adapter failed to init, mbxCmd x%x "
465                                 "READ_CONFIG, mbxStatus x%x\n",
466                                 mb->mbxCommand, mb->mbxStatus);
467                 phba->link_state = LPFC_HBA_ERROR;
468                 mempool_free( pmb, phba->mbox_mem_pool);
469                 return -EIO;
470         }
471 
472         /* Check if the port is disabled */
473         lpfc_sli_read_link_ste(phba);
474 
475         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
476         i = (mb->un.varRdConfig.max_xri + 1);
477         if (phba->cfg_hba_queue_depth > i) {
478                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
479                                 "3359 HBA queue depth changed from %d to %d\n",
480                                 phba->cfg_hba_queue_depth, i);
481                 phba->cfg_hba_queue_depth = i;
482         }
483 
484         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
485         i = (mb->un.varRdConfig.max_xri >> 3);
486         if (phba->pport->cfg_lun_queue_depth > i) {
487                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
488                                 "3360 LUN queue depth changed from %d to %d\n",
489                                 phba->pport->cfg_lun_queue_depth, i);
490                 phba->pport->cfg_lun_queue_depth = i;
491         }
492 
493         phba->lmt = mb->un.varRdConfig.lmt;
494 
495         /* Get the default values for Model Name and Description */
496         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
497 
498         phba->link_state = LPFC_LINK_DOWN;
499 
500         /* Only process IOCBs on ELS ring till hba_state is READY */
501         if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
502                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
503         if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
504                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
505         if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
506                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
507 
508         /* Post receive buffers for desired rings */
509         if (phba->sli_rev != 3)
510                 lpfc_post_rcv_buf(phba);
511 
512         /*
513          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
514          */
515         if (phba->intr_type == MSIX) {
516                 rc = lpfc_config_msi(phba, pmb);
517                 if (rc) {
518                         mempool_free(pmb, phba->mbox_mem_pool);
519                         return -EIO;
520                 }
521                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
522                 if (rc != MBX_SUCCESS) {
523                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
524                                         "0352 Config MSI mailbox command "
525                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
526                                         pmb->u.mb.mbxCommand,
527                                         pmb->u.mb.mbxStatus);
528                         mempool_free(pmb, phba->mbox_mem_pool);
529                         return -EIO;
530                 }
531         }
532 
533         spin_lock_irq(&phba->hbalock);
534         /* Initialize ERATT handling flag */
535         phba->hba_flag &= ~HBA_ERATT_HANDLED;
536 
537         /* Enable appropriate host interrupts */
538         if (lpfc_readl(phba->HCregaddr, &status)) {
539                 spin_unlock_irq(&phba->hbalock);
540                 return -EIO;
541         }
542         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
543         if (psli->num_rings > 0)
544                 status |= HC_R0INT_ENA;
545         if (psli->num_rings > 1)
546                 status |= HC_R1INT_ENA;
547         if (psli->num_rings > 2)
548                 status |= HC_R2INT_ENA;
549         if (psli->num_rings > 3)
550                 status |= HC_R3INT_ENA;
551 
552         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
553             (phba->cfg_poll & DISABLE_FCP_RING_INT))
554                 status &= ~(HC_R0INT_ENA);
555 
556         writel(status, phba->HCregaddr);
557         readl(phba->HCregaddr); /* flush */
558         spin_unlock_irq(&phba->hbalock);
559 
560         /* Set up ring-0 (ELS) timer */
561         timeout = phba->fc_ratov * 2;
562         mod_timer(&vport->els_tmofunc,
563                   jiffies + msecs_to_jiffies(1000 * timeout));
564         /* Set up heart beat (HB) timer */
565         mod_timer(&phba->hb_tmofunc,
566                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
567         phba->hb_outstanding = 0;
568         phba->last_completion_time = jiffies;
569         /* Set up error attention (ERATT) polling timer */
570         mod_timer(&phba->eratt_poll,
571                   jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
572 
573         if (phba->hba_flag & LINK_DISABLED) {
574                 lpfc_printf_log(phba,
575                         KERN_ERR, LOG_INIT,
576                         "2598 Adapter Link is disabled.\n");
577                 lpfc_down_link(phba, pmb);
578                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
579                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
580                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
581                         lpfc_printf_log(phba,
582                         KERN_ERR, LOG_INIT,
583                         "2599 Adapter failed to issue DOWN_LINK"
584                         " mbox command rc 0x%x\n", rc);
585 
586                         mempool_free(pmb, phba->mbox_mem_pool);
587                         return -EIO;
588                 }
589         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
590                 mempool_free(pmb, phba->mbox_mem_pool);
591                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
592                 if (rc)
593                         return rc;
594         }
595         /* MBOX buffer will be freed in mbox compl */
596         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
597         if (!pmb) {
598                 phba->link_state = LPFC_HBA_ERROR;
599                 return -ENOMEM;
600         }
601 
602         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
603         pmb->mbox_cmpl = lpfc_config_async_cmpl;
604         pmb->vport = phba->pport;
605         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
606 
607         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
608                 lpfc_printf_log(phba,
609                                 KERN_ERR,
610                                 LOG_INIT,
611                                 "0456 Adapter failed to issue "
612                                 "ASYNCEVT_ENABLE mbox status x%x\n",
613                                 rc);
614                 mempool_free(pmb, phba->mbox_mem_pool);
615         }
616 
617         /* Get Option rom version */
618         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
619         if (!pmb) {
620                 phba->link_state = LPFC_HBA_ERROR;
621                 return -ENOMEM;
622         }
623 
624         lpfc_dump_wakeup_param(phba, pmb);
625         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
626         pmb->vport = phba->pport;
627         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
628 
629         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
630                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
631                                 "to get Option ROM version status x%x\n", rc);
632                 mempool_free(pmb, phba->mbox_mem_pool);
633         }
634 
635         return 0;
636 }
637 
638 /**
639  * lpfc_hba_init_link - Initialize the FC link
640  * @phba: pointer to lpfc hba data structure.
641  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
642  *
643  * This routine will issue the INIT_LINK mailbox command call.
644  * It is available to other drivers through the lpfc_hba data
645  * structure for use as a delayed link up mechanism with the
646  * module parameter lpfc_suppress_link_up.
647  *
648  * Return code
649  *              0 - success
650  *              Any other value - error
651  **/
652 static int
653 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
654 {
655         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
656 }
657 
658 /**
659  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
660  * @phba: pointer to lpfc hba data structure.
661  * @fc_topology: desired fc topology.
662  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
663  *
664  * This routine will issue the INIT_LINK mailbox command call.
665  * It is available to other drivers through the lpfc_hba data
666  * structure for use as a delayed link up mechanism with the
667  * module parameter lpfc_suppress_link_up.
668  *
669  * Return code
670  *              0 - success
671  *              Any other value - error
672  **/
673 int
674 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
675                                uint32_t flag)
676 {
677         struct lpfc_vport *vport = phba->pport;
678         LPFC_MBOXQ_t *pmb;
679         MAILBOX_t *mb;
680         int rc;
681 
682         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
683         if (!pmb) {
684                 phba->link_state = LPFC_HBA_ERROR;
685                 return -ENOMEM;
686         }
687         mb = &pmb->u.mb;
688         pmb->vport = vport;
689 
690         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
691             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
692              !(phba->lmt & LMT_1Gb)) ||
693             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
694              !(phba->lmt & LMT_2Gb)) ||
695             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
696              !(phba->lmt & LMT_4Gb)) ||
697             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
698              !(phba->lmt & LMT_8Gb)) ||
699             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
700              !(phba->lmt & LMT_10Gb)) ||
701             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
702              !(phba->lmt & LMT_16Gb)) ||
703             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
704              !(phba->lmt & LMT_32Gb))) {
705                 /* Reset link speed to auto */
706                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
707                         "1302 Invalid speed for this board:%d "
708                         "Reset link speed to auto.\n",
709                         phba->cfg_link_speed);
710                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
711         }
712         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
713         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
714         if (phba->sli_rev < LPFC_SLI_REV4)
715                 lpfc_set_loopback_flag(phba);
716         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
717         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
718                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
719                         "0498 Adapter failed to init, mbxCmd x%x "
720                         "INIT_LINK, mbxStatus x%x\n",
721                         mb->mbxCommand, mb->mbxStatus);
722                 if (phba->sli_rev <= LPFC_SLI_REV3) {
723                         /* Clear all interrupt enable conditions */
724                         writel(0, phba->HCregaddr);
725                         readl(phba->HCregaddr); /* flush */
726                         /* Clear all pending interrupts */
727                         writel(0xffffffff, phba->HAregaddr);
728                         readl(phba->HAregaddr); /* flush */
729                 }
730                 phba->link_state = LPFC_HBA_ERROR;
731                 if (rc != MBX_BUSY || flag == MBX_POLL)
732                         mempool_free(pmb, phba->mbox_mem_pool);
733                 return -EIO;
734         }
735         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
736         if (flag == MBX_POLL)
737                 mempool_free(pmb, phba->mbox_mem_pool);
738 
739         return 0;
740 }
741 
742 /**
743  * lpfc_hba_down_link - this routine downs the FC link
744  * @phba: pointer to lpfc hba data structure.
745  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
746  *
747  * This routine will issue the DOWN_LINK mailbox command call.
748  * It is available to other drivers through the lpfc_hba data
749  * structure for use to stop the link.
750  *
751  * Return code
752  *              0 - success
753  *              Any other value - error
754  **/
755 static int
756 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
757 {
758         LPFC_MBOXQ_t *pmb;
759         int rc;
760 
761         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
762         if (!pmb) {
763                 phba->link_state = LPFC_HBA_ERROR;
764                 return -ENOMEM;
765         }
766 
767         lpfc_printf_log(phba,
768                 KERN_ERR, LOG_INIT,
769                 "0491 Adapter Link is disabled.\n");
770         lpfc_down_link(phba, pmb);
771         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
772         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
773         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
774                 lpfc_printf_log(phba,
775                 KERN_ERR, LOG_INIT,
776                 "2522 Adapter failed to issue DOWN_LINK"
777                 " mbox command rc 0x%x\n", rc);
778 
779                 mempool_free(pmb, phba->mbox_mem_pool);
780                 return -EIO;
781         }
782         if (flag == MBX_POLL)
783                 mempool_free(pmb, phba->mbox_mem_pool);
784 
785         return 0;
786 }
787 
788 /**
789  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
790  * @phba: pointer to lpfc HBA data structure.
791  *
792  * This routine will do LPFC uninitialization before the HBA is reset when
793  * bringing down the SLI Layer.
794  *
795  * Return codes
796  *   0 - success.
797  *   Any other value - error.
798  **/
799 int
800 lpfc_hba_down_prep(struct lpfc_hba *phba)
801 {
802         struct lpfc_vport **vports;
803         int i;
804 
805         if (phba->sli_rev <= LPFC_SLI_REV3) {
806                 /* Disable interrupts */
807                 writel(0, phba->HCregaddr);
808                 readl(phba->HCregaddr); /* flush */
809         }
810 
811         if (phba->pport->load_flag & FC_UNLOADING)
812                 lpfc_cleanup_discovery_resources(phba->pport);
813         else {
814                 vports = lpfc_create_vport_work_array(phba);
815                 if (vports != NULL)
816                         for (i = 0; i <= phba->max_vports &&
817                                 vports[i] != NULL; i++)
818                                 lpfc_cleanup_discovery_resources(vports[i]);
819                 lpfc_destroy_vport_work_array(phba, vports);
820         }
821         return 0;
822 }
823 
824 /**
825  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
826  * rspiocb which got deferred
827  *
828  * @phba: pointer to lpfc HBA data structure.
829  *
830  * This routine will cleanup completed slow path events after HBA is reset
831  * when bringing down the SLI Layer.
832  *
833  *
834  * Return codes
835  *   void.
836  **/
837 static void
838 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
839 {
840         struct lpfc_iocbq *rspiocbq;
841         struct hbq_dmabuf *dmabuf;
842         struct lpfc_cq_event *cq_event;
843 
844         spin_lock_irq(&phba->hbalock);
845         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
846         spin_unlock_irq(&phba->hbalock);
847 
848         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
849                 /* Get the response iocb from the head of work queue */
850                 spin_lock_irq(&phba->hbalock);
851                 list_remove_head(&phba->sli4_hba.sp_queue_event,
852                                  cq_event, struct lpfc_cq_event, list);
853                 spin_unlock_irq(&phba->hbalock);
854 
855                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
856                 case CQE_CODE_COMPL_WQE:
857                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
858                                                  cq_event);
859                         lpfc_sli_release_iocbq(phba, rspiocbq);
860                         break;
861                 case CQE_CODE_RECEIVE:
862                 case CQE_CODE_RECEIVE_V1:
863                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
864                                               cq_event);
865                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
866                 }
867         }
868 }
869 
870 /**
871  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
872  * @phba: pointer to lpfc HBA data structure.
873  *
874  * This routine will cleanup posted ELS buffers after the HBA is reset
875  * when bringing down the SLI Layer.
876  *
877  *
878  * Return codes
879  *   void.
880  **/
881 static void
882 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
883 {
884         struct lpfc_sli *psli = &phba->sli;
885         struct lpfc_sli_ring *pring;
886         struct lpfc_dmabuf *mp, *next_mp;
887         LIST_HEAD(buflist);
888         int count;
889 
890         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
891                 lpfc_sli_hbqbuf_free_all(phba);
892         else {
893                 /* Cleanup preposted buffers on the ELS ring */
894                 pring = &psli->ring[LPFC_ELS_RING];
895                 spin_lock_irq(&phba->hbalock);
896                 list_splice_init(&pring->postbufq, &buflist);
897                 spin_unlock_irq(&phba->hbalock);
898 
899                 count = 0;
900                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
901                         list_del(&mp->list);
902                         count++;
903                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
904                         kfree(mp);
905                 }
906 
907                 spin_lock_irq(&phba->hbalock);
908                 pring->postbufq_cnt -= count;
909                 spin_unlock_irq(&phba->hbalock);
910         }
911 }
912 
913 /**
914  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
915  * @phba: pointer to lpfc HBA data structure.
916  *
917  * This routine will cleanup the txcmplq after the HBA is reset when bringing
918  * down the SLI Layer.
919  *
920  * Return codes
921  *   void
922  **/
923 static void
924 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
925 {
926         struct lpfc_sli *psli = &phba->sli;
927         struct lpfc_sli_ring *pring;
928         LIST_HEAD(completions);
929         int i;
930 
931         for (i = 0; i < psli->num_rings; i++) {
932                 pring = &psli->ring[i];
933                 if (phba->sli_rev >= LPFC_SLI_REV4)
934                         spin_lock_irq(&pring->ring_lock);
935                 else
936                         spin_lock_irq(&phba->hbalock);
937                 /* At this point in time the HBA is either reset or DOA. Either
938                  * way, nothing should be on txcmplq as it will NEVER complete.
939                  */
940                 list_splice_init(&pring->txcmplq, &completions);
941                 pring->txcmplq_cnt = 0;
942 
943                 if (phba->sli_rev >= LPFC_SLI_REV4)
944                         spin_unlock_irq(&pring->ring_lock);
945                 else
946                         spin_unlock_irq(&phba->hbalock);
947 
948                 /* Cancel all the IOCBs from the completions list */
949                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
950                                       IOERR_SLI_ABORTED);
951                 lpfc_sli_abort_iocb_ring(phba, pring);
952         }
953 }
954 
955 /**
956  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
957         int i;
958  * @phba: pointer to lpfc HBA data structure.
959  *
960  * This routine will do uninitialization after the HBA is reset when bring
961  * down the SLI Layer.
962  *
963  * Return codes
964  *   0 - success.
965  *   Any other value - error.
966  **/
967 static int
968 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
969 {
970         lpfc_hba_free_post_buf(phba);
971         lpfc_hba_clean_txcmplq(phba);
972         return 0;
973 }
974 
975 /**
976  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
977  * @phba: pointer to lpfc HBA data structure.
978  *
979  * This routine will do uninitialization after the HBA is reset when bring
980  * down the SLI Layer.
981  *
982  * Return codes
983  *   0 - success.
984  *   Any other value - error.
985  **/
986 static int
987 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
988 {
989         struct lpfc_scsi_buf *psb, *psb_next;
990         LIST_HEAD(aborts);
991         unsigned long iflag = 0;
992         struct lpfc_sglq *sglq_entry = NULL;
993         struct lpfc_sli *psli = &phba->sli;
994         struct lpfc_sli_ring *pring;
995 
996         lpfc_hba_free_post_buf(phba);
997         lpfc_hba_clean_txcmplq(phba);
998         pring = &psli->ring[LPFC_ELS_RING];
999 
1000         /* At this point in time the HBA is either reset or DOA. Either
1001          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1002          * on the lpfc_sgl_list so that it can either be freed if the
1003          * driver is unloading or reposted if the driver is restarting
1004          * the port.
1005          */
1006         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
1007                                         /* scsl_buf_list */
1008         /* abts_sgl_list_lock required because worker thread uses this
1009          * list.
1010          */
1011         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
1012         list_for_each_entry(sglq_entry,
1013                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1014                 sglq_entry->state = SGL_FREED;
1015 
1016         spin_lock(&pring->ring_lock);
1017         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1018                         &phba->sli4_hba.lpfc_sgl_list);
1019         spin_unlock(&pring->ring_lock);
1020         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
1021         /* abts_scsi_buf_list_lock required because worker thread uses this
1022          * list.
1023          */
1024         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1025         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1026                         &aborts);
1027         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1028         spin_unlock_irq(&phba->hbalock);
1029 
1030         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1031                 psb->pCmd = NULL;
1032                 psb->status = IOSTAT_SUCCESS;
1033         }
1034         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1035         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1036         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1037 
1038         lpfc_sli4_free_sp_events(phba);
1039         return 0;
1040 }
1041 
1042 /**
1043  * lpfc_hba_down_post - Wrapper func for hba down post routine
1044  * @phba: pointer to lpfc HBA data structure.
1045  *
1046  * This routine wraps the actual SLI3 or SLI4 routine for performing
1047  * uninitialization after the HBA is reset when bring down the SLI Layer.
1048  *
1049  * Return codes
1050  *   0 - success.
1051  *   Any other value - error.
1052  **/
1053 int
1054 lpfc_hba_down_post(struct lpfc_hba *phba)
1055 {
1056         return (*phba->lpfc_hba_down_post)(phba);
1057 }
1058 
1059 /**
1060  * lpfc_hb_timeout - The HBA-timer timeout handler
1061  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1062  *
1063  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1064  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1065  * work-port-events bitmap and the worker thread is notified. This timeout
1066  * event will be used by the worker thread to invoke the actual timeout
1067  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1068  * be performed in the timeout handler and the HBA timeout event bit shall
1069  * be cleared by the worker thread after it has taken the event bitmap out.
1070  **/
1071 static void
1072 lpfc_hb_timeout(unsigned long ptr)
1073 {
1074         struct lpfc_hba *phba;
1075         uint32_t tmo_posted;
1076         unsigned long iflag;
1077 
1078         phba = (struct lpfc_hba *)ptr;
1079 
1080         /* Check for heart beat timeout conditions */
1081         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1082         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1083         if (!tmo_posted)
1084                 phba->pport->work_port_events |= WORKER_HB_TMO;
1085         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1086 
1087         /* Tell the worker thread there is work to do */
1088         if (!tmo_posted)
1089                 lpfc_worker_wake_up(phba);
1090         return;
1091 }
1092 
1093 /**
1094  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1095  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1096  *
1097  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1098  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1099  * work-port-events bitmap and the worker thread is notified. This timeout
1100  * event will be used by the worker thread to invoke the actual timeout
1101  * handler routine, lpfc_rrq_handler. Any periodical operations will
1102  * be performed in the timeout handler and the RRQ timeout event bit shall
1103  * be cleared by the worker thread after it has taken the event bitmap out.
1104  **/
1105 static void
1106 lpfc_rrq_timeout(unsigned long ptr)
1107 {
1108         struct lpfc_hba *phba;
1109         unsigned long iflag;
1110 
1111         phba = (struct lpfc_hba *)ptr;
1112         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1113         if (!(phba->pport->load_flag & FC_UNLOADING))
1114                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1115         else
1116                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1117         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1118 
1119         if (!(phba->pport->load_flag & FC_UNLOADING))
1120                 lpfc_worker_wake_up(phba);
1121 }
1122 
1123 /**
1124  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1125  * @phba: pointer to lpfc hba data structure.
1126  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1127  *
1128  * This is the callback function to the lpfc heart-beat mailbox command.
1129  * If configured, the lpfc driver issues the heart-beat mailbox command to
1130  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1131  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1132  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1133  * heart-beat outstanding state. Once the mailbox command comes back and
1134  * no error conditions detected, the heart-beat mailbox command timer is
1135  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1136  * state is cleared for the next heart-beat. If the timer expired with the
1137  * heart-beat outstanding state set, the driver will put the HBA offline.
1138  **/
1139 static void
1140 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1141 {
1142         unsigned long drvr_flag;
1143 
1144         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1145         phba->hb_outstanding = 0;
1146         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1147 
1148         /* Check and reset heart-beat timer is necessary */
1149         mempool_free(pmboxq, phba->mbox_mem_pool);
1150         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1151                 !(phba->link_state == LPFC_HBA_ERROR) &&
1152                 !(phba->pport->load_flag & FC_UNLOADING))
1153                 mod_timer(&phba->hb_tmofunc,
1154                           jiffies +
1155                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1156         return;
1157 }
1158 
1159 /**
1160  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1161  * @phba: pointer to lpfc hba data structure.
1162  *
1163  * This is the actual HBA-timer timeout handler to be invoked by the worker
1164  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1165  * handler performs any periodic operations needed for the device. If such
1166  * periodic event has already been attended to either in the interrupt handler
1167  * or by processing slow-ring or fast-ring events within the HBA-timer
1168  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1169  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1170  * is configured and there is no heart-beat mailbox command outstanding, a
1171  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1172  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1173  * to offline.
1174  **/
1175 void
1176 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1177 {
1178         struct lpfc_vport **vports;
1179         LPFC_MBOXQ_t *pmboxq;
1180         struct lpfc_dmabuf *buf_ptr;
1181         int retval, i;
1182         struct lpfc_sli *psli = &phba->sli;
1183         LIST_HEAD(completions);
1184 
1185         vports = lpfc_create_vport_work_array(phba);
1186         if (vports != NULL)
1187                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1188                         lpfc_rcv_seq_check_edtov(vports[i]);
1189                         lpfc_fdmi_num_disc_check(vports[i]);
1190                 }
1191         lpfc_destroy_vport_work_array(phba, vports);
1192 
1193         if ((phba->link_state == LPFC_HBA_ERROR) ||
1194                 (phba->pport->load_flag & FC_UNLOADING) ||
1195                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1196                 return;
1197 
1198         spin_lock_irq(&phba->pport->work_port_lock);
1199 
1200         if (time_after(phba->last_completion_time +
1201                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1202                         jiffies)) {
1203                 spin_unlock_irq(&phba->pport->work_port_lock);
1204                 if (!phba->hb_outstanding)
1205                         mod_timer(&phba->hb_tmofunc,
1206                                 jiffies +
1207                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1208                 else
1209                         mod_timer(&phba->hb_tmofunc,
1210                                 jiffies +
1211                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1212                 return;
1213         }
1214         spin_unlock_irq(&phba->pport->work_port_lock);
1215 
1216         if (phba->elsbuf_cnt &&
1217                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1218                 spin_lock_irq(&phba->hbalock);
1219                 list_splice_init(&phba->elsbuf, &completions);
1220                 phba->elsbuf_cnt = 0;
1221                 phba->elsbuf_prev_cnt = 0;
1222                 spin_unlock_irq(&phba->hbalock);
1223 
1224                 while (!list_empty(&completions)) {
1225                         list_remove_head(&completions, buf_ptr,
1226                                 struct lpfc_dmabuf, list);
1227                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1228                         kfree(buf_ptr);
1229                 }
1230         }
1231         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1232 
1233         /* If there is no heart beat outstanding, issue a heartbeat command */
1234         if (phba->cfg_enable_hba_heartbeat) {
1235                 if (!phba->hb_outstanding) {
1236                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1237                                 (list_empty(&psli->mboxq))) {
1238                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1239                                                         GFP_KERNEL);
1240                                 if (!pmboxq) {
1241                                         mod_timer(&phba->hb_tmofunc,
1242                                                  jiffies +
1243                                                  msecs_to_jiffies(1000 *
1244                                                  LPFC_HB_MBOX_INTERVAL));
1245                                         return;
1246                                 }
1247 
1248                                 lpfc_heart_beat(phba, pmboxq);
1249                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1250                                 pmboxq->vport = phba->pport;
1251                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1252                                                 MBX_NOWAIT);
1253 
1254                                 if (retval != MBX_BUSY &&
1255                                         retval != MBX_SUCCESS) {
1256                                         mempool_free(pmboxq,
1257                                                         phba->mbox_mem_pool);
1258                                         mod_timer(&phba->hb_tmofunc,
1259                                                 jiffies +
1260                                                 msecs_to_jiffies(1000 *
1261                                                 LPFC_HB_MBOX_INTERVAL));
1262                                         return;
1263                                 }
1264                                 phba->skipped_hb = 0;
1265                                 phba->hb_outstanding = 1;
1266                         } else if (time_before_eq(phba->last_completion_time,
1267                                         phba->skipped_hb)) {
1268                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1269                                         "2857 Last completion time not "
1270                                         " updated in %d ms\n",
1271                                         jiffies_to_msecs(jiffies
1272                                                  - phba->last_completion_time));
1273                         } else
1274                                 phba->skipped_hb = jiffies;
1275 
1276                         mod_timer(&phba->hb_tmofunc,
1277                                  jiffies +
1278                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1279                         return;
1280                 } else {
1281                         /*
1282                         * If heart beat timeout called with hb_outstanding set
1283                         * we need to give the hb mailbox cmd a chance to
1284                         * complete or TMO.
1285                         */
1286                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1287                                         "0459 Adapter heartbeat still out"
1288                                         "standing:last compl time was %d ms.\n",
1289                                         jiffies_to_msecs(jiffies
1290                                                  - phba->last_completion_time));
1291                         mod_timer(&phba->hb_tmofunc,
1292                                 jiffies +
1293                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1294                 }
1295         } else {
1296                         mod_timer(&phba->hb_tmofunc,
1297                                 jiffies +
1298                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1299         }
1300 }
1301 
1302 /**
1303  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1304  * @phba: pointer to lpfc hba data structure.
1305  *
1306  * This routine is called to bring the HBA offline when HBA hardware error
1307  * other than Port Error 6 has been detected.
1308  **/
1309 static void
1310 lpfc_offline_eratt(struct lpfc_hba *phba)
1311 {
1312         struct lpfc_sli   *psli = &phba->sli;
1313 
1314         spin_lock_irq(&phba->hbalock);
1315         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1316         spin_unlock_irq(&phba->hbalock);
1317         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1318 
1319         lpfc_offline(phba);
1320         lpfc_reset_barrier(phba);
1321         spin_lock_irq(&phba->hbalock);
1322         lpfc_sli_brdreset(phba);
1323         spin_unlock_irq(&phba->hbalock);
1324         lpfc_hba_down_post(phba);
1325         lpfc_sli_brdready(phba, HS_MBRDY);
1326         lpfc_unblock_mgmt_io(phba);
1327         phba->link_state = LPFC_HBA_ERROR;
1328         return;
1329 }
1330 
1331 /**
1332  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1333  * @phba: pointer to lpfc hba data structure.
1334  *
1335  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1336  * other than Port Error 6 has been detected.
1337  **/
1338 void
1339 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1340 {
1341         spin_lock_irq(&phba->hbalock);
1342         phba->link_state = LPFC_HBA_ERROR;
1343         spin_unlock_irq(&phba->hbalock);
1344 
1345         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1346         lpfc_offline(phba);
1347         lpfc_hba_down_post(phba);
1348         lpfc_unblock_mgmt_io(phba);
1349 }
1350 
1351 /**
1352  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1353  * @phba: pointer to lpfc hba data structure.
1354  *
1355  * This routine is invoked to handle the deferred HBA hardware error
1356  * conditions. This type of error is indicated by HBA by setting ER1
1357  * and another ER bit in the host status register. The driver will
1358  * wait until the ER1 bit clears before handling the error condition.
1359  **/
1360 static void
1361 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1362 {
1363         uint32_t old_host_status = phba->work_hs;
1364         struct lpfc_sli *psli = &phba->sli;
1365 
1366         /* If the pci channel is offline, ignore possible errors,
1367          * since we cannot communicate with the pci card anyway.
1368          */
1369         if (pci_channel_offline(phba->pcidev)) {
1370                 spin_lock_irq(&phba->hbalock);
1371                 phba->hba_flag &= ~DEFER_ERATT;
1372                 spin_unlock_irq(&phba->hbalock);
1373                 return;
1374         }
1375 
1376         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1377                 "0479 Deferred Adapter Hardware Error "
1378                 "Data: x%x x%x x%x\n",
1379                 phba->work_hs,
1380                 phba->work_status[0], phba->work_status[1]);
1381 
1382         spin_lock_irq(&phba->hbalock);
1383         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1384         spin_unlock_irq(&phba->hbalock);
1385 
1386 
1387         /*
1388          * Firmware stops when it triggred erratt. That could cause the I/Os
1389          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1390          * SCSI layer retry it after re-establishing link.
1391          */
1392         lpfc_sli_abort_fcp_rings(phba);
1393 
1394         /*
1395          * There was a firmware error. Take the hba offline and then
1396          * attempt to restart it.
1397          */
1398         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1399         lpfc_offline(phba);
1400 
1401         /* Wait for the ER1 bit to clear.*/
1402         while (phba->work_hs & HS_FFER1) {
1403                 msleep(100);
1404                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1405                         phba->work_hs = UNPLUG_ERR ;
1406                         break;
1407                 }
1408                 /* If driver is unloading let the worker thread continue */
1409                 if (phba->pport->load_flag & FC_UNLOADING) {
1410                         phba->work_hs = 0;
1411                         break;
1412                 }
1413         }
1414 
1415         /*
1416          * This is to ptrotect against a race condition in which
1417          * first write to the host attention register clear the
1418          * host status register.
1419          */
1420         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1421                 phba->work_hs = old_host_status & ~HS_FFER1;
1422 
1423         spin_lock_irq(&phba->hbalock);
1424         phba->hba_flag &= ~DEFER_ERATT;
1425         spin_unlock_irq(&phba->hbalock);
1426         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1427         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1428 }
1429 
1430 static void
1431 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1432 {
1433         struct lpfc_board_event_header board_event;
1434         struct Scsi_Host *shost;
1435 
1436         board_event.event_type = FC_REG_BOARD_EVENT;
1437         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1438         shost = lpfc_shost_from_vport(phba->pport);
1439         fc_host_post_vendor_event(shost, fc_get_event_number(),
1440                                   sizeof(board_event),
1441                                   (char *) &board_event,
1442                                   LPFC_NL_VENDOR_ID);
1443 }
1444 
1445 /**
1446  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1447  * @phba: pointer to lpfc hba data structure.
1448  *
1449  * This routine is invoked to handle the following HBA hardware error
1450  * conditions:
1451  * 1 - HBA error attention interrupt
1452  * 2 - DMA ring index out of range
1453  * 3 - Mailbox command came back as unknown
1454  **/
1455 static void
1456 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1457 {
1458         struct lpfc_vport *vport = phba->pport;
1459         struct lpfc_sli   *psli = &phba->sli;
1460         uint32_t event_data;
1461         unsigned long temperature;
1462         struct temp_event temp_event_data;
1463         struct Scsi_Host  *shost;
1464 
1465         /* If the pci channel is offline, ignore possible errors,
1466          * since we cannot communicate with the pci card anyway.
1467          */
1468         if (pci_channel_offline(phba->pcidev)) {
1469                 spin_lock_irq(&phba->hbalock);
1470                 phba->hba_flag &= ~DEFER_ERATT;
1471                 spin_unlock_irq(&phba->hbalock);
1472                 return;
1473         }
1474 
1475         /* If resets are disabled then leave the HBA alone and return */
1476         if (!phba->cfg_enable_hba_reset)
1477                 return;
1478 
1479         /* Send an internal error event to mgmt application */
1480         lpfc_board_errevt_to_mgmt(phba);
1481 
1482         if (phba->hba_flag & DEFER_ERATT)
1483                 lpfc_handle_deferred_eratt(phba);
1484 
1485         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1486                 if (phba->work_hs & HS_FFER6)
1487                         /* Re-establishing Link */
1488                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1489                                         "1301 Re-establishing Link "
1490                                         "Data: x%x x%x x%x\n",
1491                                         phba->work_hs, phba->work_status[0],
1492                                         phba->work_status[1]);
1493                 if (phba->work_hs & HS_FFER8)
1494                         /* Device Zeroization */
1495                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1496                                         "2861 Host Authentication device "
1497                                         "zeroization Data:x%x x%x x%x\n",
1498                                         phba->work_hs, phba->work_status[0],
1499                                         phba->work_status[1]);
1500 
1501                 spin_lock_irq(&phba->hbalock);
1502                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1503                 spin_unlock_irq(&phba->hbalock);
1504 
1505                 /*
1506                 * Firmware stops when it triggled erratt with HS_FFER6.
1507                 * That could cause the I/Os dropped by the firmware.
1508                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1509                 * retry it after re-establishing link.
1510                 */
1511                 lpfc_sli_abort_fcp_rings(phba);
1512 
1513                 /*
1514                  * There was a firmware error.  Take the hba offline and then
1515                  * attempt to restart it.
1516                  */
1517                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1518                 lpfc_offline(phba);
1519                 lpfc_sli_brdrestart(phba);
1520                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1521                         lpfc_unblock_mgmt_io(phba);
1522                         return;
1523                 }
1524                 lpfc_unblock_mgmt_io(phba);
1525         } else if (phba->work_hs & HS_CRIT_TEMP) {
1526                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1527                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1528                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1529                 temp_event_data.data = (uint32_t)temperature;
1530 
1531                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1532                                 "0406 Adapter maximum temperature exceeded "
1533                                 "(%ld), taking this port offline "
1534                                 "Data: x%x x%x x%x\n",
1535                                 temperature, phba->work_hs,
1536                                 phba->work_status[0], phba->work_status[1]);
1537 
1538                 shost = lpfc_shost_from_vport(phba->pport);
1539                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1540                                           sizeof(temp_event_data),
1541                                           (char *) &temp_event_data,
1542                                           SCSI_NL_VID_TYPE_PCI
1543                                           | PCI_VENDOR_ID_EMULEX);
1544 
1545                 spin_lock_irq(&phba->hbalock);
1546                 phba->over_temp_state = HBA_OVER_TEMP;
1547                 spin_unlock_irq(&phba->hbalock);
1548                 lpfc_offline_eratt(phba);
1549 
1550         } else {
1551                 /* The if clause above forces this code path when the status
1552                  * failure is a value other than FFER6. Do not call the offline
1553                  * twice. This is the adapter hardware error path.
1554                  */
1555                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1556                                 "0457 Adapter Hardware Error "
1557                                 "Data: x%x x%x x%x\n",
1558                                 phba->work_hs,
1559                                 phba->work_status[0], phba->work_status[1]);
1560 
1561                 event_data = FC_REG_DUMP_EVENT;
1562                 shost = lpfc_shost_from_vport(vport);
1563                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1564                                 sizeof(event_data), (char *) &event_data,
1565                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1566 
1567                 lpfc_offline_eratt(phba);
1568         }
1569         return;
1570 }
1571 
1572 /**
1573  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1574  * @phba: pointer to lpfc hba data structure.
1575  * @mbx_action: flag for mailbox shutdown action.
1576  *
1577  * This routine is invoked to perform an SLI4 port PCI function reset in
1578  * response to port status register polling attention. It waits for port
1579  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1580  * During this process, interrupt vectors are freed and later requested
1581  * for handling possible port resource change.
1582  **/
1583 static int
1584 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1585                             bool en_rn_msg)
1586 {
1587         int rc;
1588         uint32_t intr_mode;
1589 
1590         /*
1591          * On error status condition, driver need to wait for port
1592          * ready before performing reset.
1593          */
1594         rc = lpfc_sli4_pdev_status_reg_wait(phba);
1595         if (!rc) {
1596                 /* need reset: attempt for port recovery */
1597                 if (en_rn_msg)
1598                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1599                                         "2887 Reset Needed: Attempting Port "
1600                                         "Recovery...\n");
1601                 lpfc_offline_prep(phba, mbx_action);
1602                 lpfc_offline(phba);
1603                 /* release interrupt for possible resource change */
1604                 lpfc_sli4_disable_intr(phba);
1605                 lpfc_sli_brdrestart(phba);
1606                 /* request and enable interrupt */
1607                 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1608                 if (intr_mode == LPFC_INTR_ERROR) {
1609                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1610                                         "3175 Failed to enable interrupt\n");
1611                         return -EIO;
1612                 } else {
1613                         phba->intr_mode = intr_mode;
1614                 }
1615                 rc = lpfc_online(phba);
1616                 if (rc == 0)
1617                         lpfc_unblock_mgmt_io(phba);
1618         }
1619         return rc;
1620 }
1621 
1622 /**
1623  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1624  * @phba: pointer to lpfc hba data structure.
1625  *
1626  * This routine is invoked to handle the SLI4 HBA hardware error attention
1627  * conditions.
1628  **/
1629 static void
1630 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1631 {
1632         struct lpfc_vport *vport = phba->pport;
1633         uint32_t event_data;
1634         struct Scsi_Host *shost;
1635         uint32_t if_type;
1636         struct lpfc_register portstat_reg = {0};
1637         uint32_t reg_err1, reg_err2;
1638         uint32_t uerrlo_reg, uemasklo_reg;
1639         uint32_t pci_rd_rc1, pci_rd_rc2;
1640         bool en_rn_msg = true;
1641         struct temp_event temp_event_data;
1642         int rc;
1643 
1644         /* If the pci channel is offline, ignore possible errors, since
1645          * we cannot communicate with the pci card anyway.
1646          */
1647         if (pci_channel_offline(phba->pcidev))
1648                 return;
1649 
1650         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1651         switch (if_type) {
1652         case LPFC_SLI_INTF_IF_TYPE_0:
1653                 pci_rd_rc1 = lpfc_readl(
1654                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1655                                 &uerrlo_reg);
1656                 pci_rd_rc2 = lpfc_readl(
1657                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1658                                 &uemasklo_reg);
1659                 /* consider PCI bus read error as pci_channel_offline */
1660                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1661                         return;
1662                 lpfc_sli4_offline_eratt(phba);
1663                 break;
1664 
1665         case LPFC_SLI_INTF_IF_TYPE_2:
1666                 pci_rd_rc1 = lpfc_readl(
1667                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1668                                 &portstat_reg.word0);
1669                 /* consider PCI bus read error as pci_channel_offline */
1670                 if (pci_rd_rc1 == -EIO) {
1671                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1672                                 "3151 PCI bus read access failure: x%x\n",
1673                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1674                         return;
1675                 }
1676                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1677                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1678                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1679                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1680                                 "2889 Port Overtemperature event, "
1681                                 "taking port offline Data: x%x x%x\n",
1682                                 reg_err1, reg_err2);
1683 
1684                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1685                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1686                         temp_event_data.data = 0xFFFFFFFF;
1687 
1688                         shost = lpfc_shost_from_vport(phba->pport);
1689                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1690                                                   sizeof(temp_event_data),
1691                                                   (char *)&temp_event_data,
1692                                                   SCSI_NL_VID_TYPE_PCI
1693                                                   | PCI_VENDOR_ID_EMULEX);
1694 
1695                         spin_lock_irq(&phba->hbalock);
1696                         phba->over_temp_state = HBA_OVER_TEMP;
1697                         spin_unlock_irq(&phba->hbalock);
1698                         lpfc_sli4_offline_eratt(phba);
1699                         return;
1700                 }
1701                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1702                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1703                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1704                                         "3143 Port Down: Firmware Update "
1705                                         "Detected\n");
1706                         en_rn_msg = false;
1707                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1708                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1709                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1710                                         "3144 Port Down: Debug Dump\n");
1711                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1712                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1713                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1714                                         "3145 Port Down: Provisioning\n");
1715 
1716                 /* If resets are disabled then leave the HBA alone and return */
1717                 if (!phba->cfg_enable_hba_reset)
1718                         return;
1719 
1720                 /* Check port status register for function reset */
1721                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1722                                 en_rn_msg);
1723                 if (rc == 0) {
1724                         /* don't report event on forced debug dump */
1725                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1726                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1727                                 return;
1728                         else
1729                                 break;
1730                 }
1731                 /* fall through for not able to recover */
1732                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1733                                 "3152 Unrecoverable error, bring the port "
1734                                 "offline\n");
1735                 lpfc_sli4_offline_eratt(phba);
1736                 break;
1737         case LPFC_SLI_INTF_IF_TYPE_1:
1738         default:
1739                 break;
1740         }
1741         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1742                         "3123 Report dump event to upper layer\n");
1743         /* Send an internal error event to mgmt application */
1744         lpfc_board_errevt_to_mgmt(phba);
1745 
1746         event_data = FC_REG_DUMP_EVENT;
1747         shost = lpfc_shost_from_vport(vport);
1748         fc_host_post_vendor_event(shost, fc_get_event_number(),
1749                                   sizeof(event_data), (char *) &event_data,
1750                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1751 }
1752 
1753 /**
1754  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1755  * @phba: pointer to lpfc HBA data structure.
1756  *
1757  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1758  * routine from the API jump table function pointer from the lpfc_hba struct.
1759  *
1760  * Return codes
1761  *   0 - success.
1762  *   Any other value - error.
1763  **/
1764 void
1765 lpfc_handle_eratt(struct lpfc_hba *phba)
1766 {
1767         (*phba->lpfc_handle_eratt)(phba);
1768 }
1769 
1770 /**
1771  * lpfc_handle_latt - The HBA link event handler
1772  * @phba: pointer to lpfc hba data structure.
1773  *
1774  * This routine is invoked from the worker thread to handle a HBA host
1775  * attention link event.
1776  **/
1777 void
1778 lpfc_handle_latt(struct lpfc_hba *phba)
1779 {
1780         struct lpfc_vport *vport = phba->pport;
1781         struct lpfc_sli   *psli = &phba->sli;
1782         LPFC_MBOXQ_t *pmb;
1783         volatile uint32_t control;
1784         struct lpfc_dmabuf *mp;
1785         int rc = 0;
1786 
1787         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1788         if (!pmb) {
1789                 rc = 1;
1790                 goto lpfc_handle_latt_err_exit;
1791         }
1792 
1793         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1794         if (!mp) {
1795                 rc = 2;
1796                 goto lpfc_handle_latt_free_pmb;
1797         }
1798 
1799         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1800         if (!mp->virt) {
1801                 rc = 3;
1802                 goto lpfc_handle_latt_free_mp;
1803         }
1804 
1805         /* Cleanup any outstanding ELS commands */
1806         lpfc_els_flush_all_cmd(phba);
1807 
1808         psli->slistat.link_event++;
1809         lpfc_read_topology(phba, pmb, mp);
1810         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1811         pmb->vport = vport;
1812         /* Block ELS IOCBs until we have processed this mbox command */
1813         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1814         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1815         if (rc == MBX_NOT_FINISHED) {
1816                 rc = 4;
1817                 goto lpfc_handle_latt_free_mbuf;
1818         }
1819 
1820         /* Clear Link Attention in HA REG */
1821         spin_lock_irq(&phba->hbalock);
1822         writel(HA_LATT, phba->HAregaddr);
1823         readl(phba->HAregaddr); /* flush */
1824         spin_unlock_irq(&phba->hbalock);
1825 
1826         return;
1827 
1828 lpfc_handle_latt_free_mbuf:
1829         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1830         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1831 lpfc_handle_latt_free_mp:
1832         kfree(mp);
1833 lpfc_handle_latt_free_pmb:
1834         mempool_free(pmb, phba->mbox_mem_pool);
1835 lpfc_handle_latt_err_exit:
1836         /* Enable Link attention interrupts */
1837         spin_lock_irq(&phba->hbalock);
1838         psli->sli_flag |= LPFC_PROCESS_LA;
1839         control = readl(phba->HCregaddr);
1840         control |= HC_LAINT_ENA;
1841         writel(control, phba->HCregaddr);
1842         readl(phba->HCregaddr); /* flush */
1843 
1844         /* Clear Link Attention in HA REG */
1845         writel(HA_LATT, phba->HAregaddr);
1846         readl(phba->HAregaddr); /* flush */
1847         spin_unlock_irq(&phba->hbalock);
1848         lpfc_linkdown(phba);
1849         phba->link_state = LPFC_HBA_ERROR;
1850 
1851         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1852                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1853 
1854         return;
1855 }
1856 
1857 /**
1858  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1859  * @phba: pointer to lpfc hba data structure.
1860  * @vpd: pointer to the vital product data.
1861  * @len: length of the vital product data in bytes.
1862  *
1863  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1864  * an array of characters. In this routine, the ModelName, ProgramType, and
1865  * ModelDesc, etc. fields of the phba data structure will be populated.
1866  *
1867  * Return codes
1868  *   0 - pointer to the VPD passed in is NULL
1869  *   1 - success
1870  **/
1871 int
1872 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1873 {
1874         uint8_t lenlo, lenhi;
1875         int Length;
1876         int i, j;
1877         int finished = 0;
1878         int index = 0;
1879 
1880         if (!vpd)
1881                 return 0;
1882 
1883         /* Vital Product */
1884         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1885                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1886                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1887                         (uint32_t) vpd[3]);
1888         while (!finished && (index < (len - 4))) {
1889                 switch (vpd[index]) {
1890                 case 0x82:
1891                 case 0x91:
1892                         index += 1;
1893                         lenlo = vpd[index];
1894                         index += 1;
1895                         lenhi = vpd[index];
1896                         index += 1;
1897                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1898                         index += i;
1899                         break;
1900                 case 0x90:
1901                         index += 1;
1902                         lenlo = vpd[index];
1903                         index += 1;
1904                         lenhi = vpd[index];
1905                         index += 1;
1906                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1907                         if (Length > len - index)
1908                                 Length = len - index;
1909                         while (Length > 0) {
1910                         /* Look for Serial Number */
1911                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1912                                 index += 2;
1913                                 i = vpd[index];
1914                                 index += 1;
1915                                 j = 0;
1916                                 Length -= (3+i);
1917                                 while(i--) {
1918                                         phba->SerialNumber[j++] = vpd[index++];
1919                                         if (j == 31)
1920                                                 break;
1921                                 }
1922                                 phba->SerialNumber[j] = 0;
1923                                 continue;
1924                         }
1925                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1926                                 phba->vpd_flag |= VPD_MODEL_DESC;
1927                                 index += 2;
1928                                 i = vpd[index];
1929                                 index += 1;
1930                                 j = 0;
1931                                 Length -= (3+i);
1932                                 while(i--) {
1933                                         phba->ModelDesc[j++] = vpd[index++];
1934                                         if (j == 255)
1935                                                 break;
1936                                 }
1937                                 phba->ModelDesc[j] = 0;
1938                                 continue;
1939                         }
1940                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1941                                 phba->vpd_flag |= VPD_MODEL_NAME;
1942                                 index += 2;
1943                                 i = vpd[index];
1944                                 index += 1;
1945                                 j = 0;
1946                                 Length -= (3+i);
1947                                 while(i--) {
1948                                         phba->ModelName[j++] = vpd[index++];
1949                                         if (j == 79)
1950                                                 break;
1951                                 }
1952                                 phba->ModelName[j] = 0;
1953                                 continue;
1954                         }
1955                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1956                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1957                                 index += 2;
1958                                 i = vpd[index];
1959                                 index += 1;
1960                                 j = 0;
1961                                 Length -= (3+i);
1962                                 while(i--) {
1963                                         phba->ProgramType[j++] = vpd[index++];
1964                                         if (j == 255)
1965                                                 break;
1966                                 }
1967                                 phba->ProgramType[j] = 0;
1968                                 continue;
1969                         }
1970                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1971                                 phba->vpd_flag |= VPD_PORT;
1972                                 index += 2;
1973                                 i = vpd[index];
1974                                 index += 1;
1975                                 j = 0;
1976                                 Length -= (3+i);
1977                                 while(i--) {
1978                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1979                                             (phba->sli4_hba.pport_name_sta ==
1980                                              LPFC_SLI4_PPNAME_GET)) {
1981                                                 j++;
1982                                                 index++;
1983                                         } else
1984                                                 phba->Port[j++] = vpd[index++];
1985                                         if (j == 19)
1986                                                 break;
1987                                 }
1988                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1989                                     (phba->sli4_hba.pport_name_sta ==
1990                                      LPFC_SLI4_PPNAME_NON))
1991                                         phba->Port[j] = 0;
1992                                 continue;
1993                         }
1994                         else {
1995                                 index += 2;
1996                                 i = vpd[index];
1997                                 index += 1;
1998                                 index += i;
1999                                 Length -= (3 + i);
2000                         }
2001                 }
2002                 finished = 0;
2003                 break;
2004                 case 0x78:
2005                         finished = 1;
2006                         break;
2007                 default:
2008                         index ++;
2009                         break;
2010                 }
2011         }
2012 
2013         return(1);
2014 }
2015 
2016 /**
2017  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2018  * @phba: pointer to lpfc hba data structure.
2019  * @mdp: pointer to the data structure to hold the derived model name.
2020  * @descp: pointer to the data structure to hold the derived description.
2021  *
2022  * This routine retrieves HBA's description based on its registered PCI device
2023  * ID. The @descp passed into this function points to an array of 256 chars. It
2024  * shall be returned with the model name, maximum speed, and the host bus type.
2025  * The @mdp passed into this function points to an array of 80 chars. When the
2026  * function returns, the @mdp will be filled with the model name.
2027  **/
2028 static void
2029 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2030 {
2031         lpfc_vpd_t *vp;
2032         uint16_t dev_id = phba->pcidev->device;
2033         int max_speed;
2034         int GE = 0;
2035         int oneConnect = 0; /* default is not a oneConnect */
2036         struct {
2037                 char *name;
2038                 char *bus;
2039                 char *function;
2040         } m = {"<Unknown>", "", ""};
2041 
2042         if (mdp && mdp[0] != '\0'
2043                 && descp && descp[0] != '\0')
2044                 return;
2045 
2046         if (phba->lmt & LMT_32Gb)
2047                 max_speed = 32;
2048         else if (phba->lmt & LMT_16Gb)
2049                 max_speed = 16;
2050         else if (phba->lmt & LMT_10Gb)
2051                 max_speed = 10;
2052         else if (phba->lmt & LMT_8Gb)
2053                 max_speed = 8;
2054         else if (phba->lmt & LMT_4Gb)
2055                 max_speed = 4;
2056         else if (phba->lmt & LMT_2Gb)
2057                 max_speed = 2;
2058         else if (phba->lmt & LMT_1Gb)
2059                 max_speed = 1;
2060         else
2061                 max_speed = 0;
2062 
2063         vp = &phba->vpd;
2064 
2065         switch (dev_id) {
2066         case PCI_DEVICE_ID_FIREFLY:
2067                 m = (typeof(m)){"LP6000", "PCI",
2068                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2069                 break;
2070         case PCI_DEVICE_ID_SUPERFLY:
2071                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2072                         m = (typeof(m)){"LP7000", "PCI", ""};
2073                 else
2074                         m = (typeof(m)){"LP7000E", "PCI", ""};
2075                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2076                 break;
2077         case PCI_DEVICE_ID_DRAGONFLY:
2078                 m = (typeof(m)){"LP8000", "PCI",
2079                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2080                 break;
2081         case PCI_DEVICE_ID_CENTAUR:
2082                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2083                         m = (typeof(m)){"LP9002", "PCI", ""};
2084                 else
2085                         m = (typeof(m)){"LP9000", "PCI", ""};
2086                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2087                 break;
2088         case PCI_DEVICE_ID_RFLY:
2089                 m = (typeof(m)){"LP952", "PCI",
2090                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2091                 break;
2092         case PCI_DEVICE_ID_PEGASUS:
2093                 m = (typeof(m)){"LP9802", "PCI-X",
2094                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2095                 break;
2096         case PCI_DEVICE_ID_THOR:
2097                 m = (typeof(m)){"LP10000", "PCI-X",
2098                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2099                 break;
2100         case PCI_DEVICE_ID_VIPER:
2101                 m = (typeof(m)){"LPX1000",  "PCI-X",
2102                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2103                 break;
2104         case PCI_DEVICE_ID_PFLY:
2105                 m = (typeof(m)){"LP982", "PCI-X",
2106                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2107                 break;
2108         case PCI_DEVICE_ID_TFLY:
2109                 m = (typeof(m)){"LP1050", "PCI-X",
2110                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2111                 break;
2112         case PCI_DEVICE_ID_HELIOS:
2113                 m = (typeof(m)){"LP11000", "PCI-X2",
2114                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2115                 break;
2116         case PCI_DEVICE_ID_HELIOS_SCSP:
2117                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2118                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2119                 break;
2120         case PCI_DEVICE_ID_HELIOS_DCSP:
2121                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2122                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2123                 break;
2124         case PCI_DEVICE_ID_NEPTUNE:
2125                 m = (typeof(m)){"LPe1000", "PCIe",
2126                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2127                 break;
2128         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2129                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2130                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2131                 break;
2132         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2133                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2134                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2135                 break;
2136         case PCI_DEVICE_ID_BMID:
2137                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2138                 break;
2139         case PCI_DEVICE_ID_BSMB:
2140                 m = (typeof(m)){"LP111", "PCI-X2",
2141                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2142                 break;
2143         case PCI_DEVICE_ID_ZEPHYR:
2144                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2145                 break;
2146         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2147                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2148                 break;
2149         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2150                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2151                 GE = 1;
2152                 break;
2153         case PCI_DEVICE_ID_ZMID:
2154                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2155                 break;
2156         case PCI_DEVICE_ID_ZSMB:
2157                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2158                 break;
2159         case PCI_DEVICE_ID_LP101:
2160                 m = (typeof(m)){"LP101", "PCI-X",
2161                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2162                 break;
2163         case PCI_DEVICE_ID_LP10000S:
2164                 m = (typeof(m)){"LP10000-S", "PCI",
2165                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2166                 break;
2167         case PCI_DEVICE_ID_LP11000S:
2168                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2169                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2170                 break;
2171         case PCI_DEVICE_ID_LPE11000S:
2172                 m = (typeof(m)){"LPe11000-S", "PCIe",
2173                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2174                 break;
2175         case PCI_DEVICE_ID_SAT:
2176                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2177                 break;
2178         case PCI_DEVICE_ID_SAT_MID:
2179                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2180                 break;
2181         case PCI_DEVICE_ID_SAT_SMB:
2182                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2183                 break;
2184         case PCI_DEVICE_ID_SAT_DCSP:
2185                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2186                 break;
2187         case PCI_DEVICE_ID_SAT_SCSP:
2188                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2189                 break;
2190         case PCI_DEVICE_ID_SAT_S:
2191                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2192                 break;
2193         case PCI_DEVICE_ID_HORNET:
2194                 m = (typeof(m)){"LP21000", "PCIe",
2195                                 "Obsolete, Unsupported FCoE Adapter"};
2196                 GE = 1;
2197                 break;
2198         case PCI_DEVICE_ID_PROTEUS_VF:
2199                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2200                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2201                 break;
2202         case PCI_DEVICE_ID_PROTEUS_PF:
2203                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2204                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2205                 break;
2206         case PCI_DEVICE_ID_PROTEUS_S:
2207                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2208                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2209                 break;
2210         case PCI_DEVICE_ID_TIGERSHARK:
2211                 oneConnect = 1;
2212                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2213                 break;
2214         case PCI_DEVICE_ID_TOMCAT:
2215                 oneConnect = 1;
2216                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2217                 break;
2218         case PCI_DEVICE_ID_FALCON:
2219                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2220                                 "EmulexSecure Fibre"};
2221                 break;
2222         case PCI_DEVICE_ID_BALIUS:
2223                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2224                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2225                 break;
2226         case PCI_DEVICE_ID_LANCER_FC:
2227                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2228                 break;
2229         case PCI_DEVICE_ID_LANCER_FC_VF:
2230                 m = (typeof(m)){"LPe16000", "PCIe",
2231                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2232                 break;
2233         case PCI_DEVICE_ID_LANCER_FCOE:
2234                 oneConnect = 1;
2235                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2236                 break;
2237         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2238                 oneConnect = 1;
2239                 m = (typeof(m)){"OCe15100", "PCIe",
2240                                 "Obsolete, Unsupported FCoE"};
2241                 break;
2242         case PCI_DEVICE_ID_LANCER_G6_FC:
2243                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2244                 break;
2245         case PCI_DEVICE_ID_SKYHAWK:
2246         case PCI_DEVICE_ID_SKYHAWK_VF:
2247                 oneConnect = 1;
2248                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2249                 break;
2250         default:
2251                 m = (typeof(m)){"Unknown", "", ""};
2252                 break;
2253         }
2254 
2255         if (mdp && mdp[0] == '\0')
2256                 snprintf(mdp, 79,"%s", m.name);
2257         /*
2258          * oneConnect hba requires special processing, they are all initiators
2259          * and we put the port number on the end
2260          */
2261         if (descp && descp[0] == '\0') {
2262                 if (oneConnect)
2263                         snprintf(descp, 255,
2264                                 "Emulex OneConnect %s, %s Initiator %s",
2265                                 m.name, m.function,
2266                                 phba->Port);
2267                 else if (max_speed == 0)
2268                         snprintf(descp, 255,
2269                                 "Emulex %s %s %s",
2270                                 m.name, m.bus, m.function);
2271                 else
2272                         snprintf(descp, 255,
2273                                 "Emulex %s %d%s %s %s",
2274                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2275                                 m.bus, m.function);
2276         }
2277 }
2278 
2279 /**
2280  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2281  * @phba: pointer to lpfc hba data structure.
2282  * @pring: pointer to a IOCB ring.
2283  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2284  *
2285  * This routine posts a given number of IOCBs with the associated DMA buffer
2286  * descriptors specified by the cnt argument to the given IOCB ring.
2287  *
2288  * Return codes
2289  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2290  **/
2291 int
2292 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2293 {
2294         IOCB_t *icmd;
2295         struct lpfc_iocbq *iocb;
2296         struct lpfc_dmabuf *mp1, *mp2;
2297 
2298         cnt += pring->missbufcnt;
2299 
2300         /* While there are buffers to post */
2301         while (cnt > 0) {
2302                 /* Allocate buffer for  command iocb */
2303                 iocb = lpfc_sli_get_iocbq(phba);
2304                 if (iocb == NULL) {
2305                         pring->missbufcnt = cnt;
2306                         return cnt;
2307                 }
2308                 icmd = &iocb->iocb;
2309 
2310                 /* 2 buffers can be posted per command */
2311                 /* Allocate buffer to post */
2312                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2313                 if (mp1)
2314                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2315                 if (!mp1 || !mp1->virt) {
2316                         kfree(mp1);
2317                         lpfc_sli_release_iocbq(phba, iocb);
2318                         pring->missbufcnt = cnt;
2319                         return cnt;
2320                 }
2321 
2322                 INIT_LIST_HEAD(&mp1->list);
2323                 /* Allocate buffer to post */
2324                 if (cnt > 1) {
2325                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2326                         if (mp2)
2327                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2328                                                             &mp2->phys);
2329                         if (!mp2 || !mp2->virt) {
2330                                 kfree(mp2);
2331                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2332                                 kfree(mp1);
2333                                 lpfc_sli_release_iocbq(phba, iocb);
2334                                 pring->missbufcnt = cnt;
2335                                 return cnt;
2336                         }
2337 
2338                         INIT_LIST_HEAD(&mp2->list);
2339                 } else {
2340                         mp2 = NULL;
2341                 }
2342 
2343                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2344                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2345                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2346                 icmd->ulpBdeCount = 1;
2347                 cnt--;
2348                 if (mp2) {
2349                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2350                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2351                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2352                         cnt--;
2353                         icmd->ulpBdeCount = 2;
2354                 }
2355 
2356                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2357                 icmd->ulpLe = 1;
2358 
2359                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2360                     IOCB_ERROR) {
2361                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2362                         kfree(mp1);
2363                         cnt++;
2364                         if (mp2) {
2365                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2366                                 kfree(mp2);
2367                                 cnt++;
2368                         }
2369                         lpfc_sli_release_iocbq(phba, iocb);
2370                         pring->missbufcnt = cnt;
2371                         return cnt;
2372                 }
2373                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2374                 if (mp2)
2375                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2376         }
2377         pring->missbufcnt = 0;
2378         return 0;
2379 }
2380 
2381 /**
2382  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2383  * @phba: pointer to lpfc hba data structure.
2384  *
2385  * This routine posts initial receive IOCB buffers to the ELS ring. The
2386  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2387  * set to 64 IOCBs.
2388  *
2389  * Return codes
2390  *   0 - success (currently always success)
2391  **/
2392 static int
2393 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2394 {
2395         struct lpfc_sli *psli = &phba->sli;
2396 
2397         /* Ring 0, ELS / CT buffers */
2398         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2399         /* Ring 2 - FCP no buffers needed */
2400 
2401         return 0;
2402 }
2403 
2404 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2405 
2406 /**
2407  * lpfc_sha_init - Set up initial array of hash table entries
2408  * @HashResultPointer: pointer to an array as hash table.
2409  *
2410  * This routine sets up the initial values to the array of hash table entries
2411  * for the LC HBAs.
2412  **/
2413 static void
2414 lpfc_sha_init(uint32_t * HashResultPointer)
2415 {
2416         HashResultPointer[0] = 0x67452301;
2417         HashResultPointer[1] = 0xEFCDAB89;
2418         HashResultPointer[2] = 0x98BADCFE;
2419         HashResultPointer[3] = 0x10325476;
2420         HashResultPointer[4] = 0xC3D2E1F0;
2421 }
2422 
2423 /**
2424  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2425  * @HashResultPointer: pointer to an initial/result hash table.
2426  * @HashWorkingPointer: pointer to an working hash table.
2427  *
2428  * This routine iterates an initial hash table pointed by @HashResultPointer
2429  * with the values from the working hash table pointeed by @HashWorkingPointer.
2430  * The results are putting back to the initial hash table, returned through
2431  * the @HashResultPointer as the result hash table.
2432  **/
2433 static void
2434 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2435 {
2436         int t;
2437         uint32_t TEMP;
2438         uint32_t A, B, C, D, E;
2439         t = 16;
2440         do {
2441                 HashWorkingPointer[t] =
2442                     S(1,
2443                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2444                                                                      8] ^
2445                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2446         } while (++t <= 79);
2447         t = 0;
2448         A = HashResultPointer[0];
2449         B = HashResultPointer[1];
2450         C = HashResultPointer[2];
2451         D = HashResultPointer[3];
2452         E = HashResultPointer[4];
2453 
2454         do {
2455                 if (t < 20) {
2456                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2457                 } else if (t < 40) {
2458                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2459                 } else if (t < 60) {
2460                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2461                 } else {
2462                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2463                 }
2464                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2465                 E = D;
2466                 D = C;
2467                 C = S(30, B);
2468                 B = A;
2469                 A = TEMP;
2470         } while (++t <= 79);
2471 
2472         HashResultPointer[0] += A;
2473         HashResultPointer[1] += B;
2474         HashResultPointer[2] += C;
2475         HashResultPointer[3] += D;
2476         HashResultPointer[4] += E;
2477 
2478 }
2479 
2480 /**
2481  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2482  * @RandomChallenge: pointer to the entry of host challenge random number array.
2483  * @HashWorking: pointer to the entry of the working hash array.
2484  *
2485  * This routine calculates the working hash array referred by @HashWorking
2486  * from the challenge random numbers associated with the host, referred by
2487  * @RandomChallenge. The result is put into the entry of the working hash
2488  * array and returned by reference through @HashWorking.
2489  **/
2490 static void
2491 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2492 {
2493         *HashWorking = (*RandomChallenge ^ *HashWorking);
2494 }
2495 
2496 /**
2497  * lpfc_hba_init - Perform special handling for LC HBA initialization
2498  * @phba: pointer to lpfc hba data structure.
2499  * @hbainit: pointer to an array of unsigned 32-bit integers.
2500  *
2501  * This routine performs the special handling for LC HBA initialization.
2502  **/
2503 void
2504 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2505 {
2506         int t;
2507         uint32_t *HashWorking;
2508         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2509 
2510         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2511         if (!HashWorking)
2512                 return;
2513 
2514         HashWorking[0] = HashWorking[78] = *pwwnn++;
2515         HashWorking[1] = HashWorking[79] = *pwwnn;
2516 
2517         for (t = 0; t < 7; t++)
2518                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2519 
2520         lpfc_sha_init(hbainit);
2521         lpfc_sha_iterate(hbainit, HashWorking);
2522         kfree(HashWorking);
2523 }
2524 
2525 /**
2526  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2527  * @vport: pointer to a virtual N_Port data structure.
2528  *
2529  * This routine performs the necessary cleanups before deleting the @vport.
2530  * It invokes the discovery state machine to perform necessary state
2531  * transitions and to release the ndlps associated with the @vport. Note,
2532  * the physical port is treated as @vport 0.
2533  **/
2534 void
2535 lpfc_cleanup(struct lpfc_vport *vport)
2536 {
2537         struct lpfc_hba   *phba = vport->phba;
2538         struct lpfc_nodelist *ndlp, *next_ndlp;
2539         int i = 0;
2540 
2541         if (phba->link_state > LPFC_LINK_DOWN)
2542                 lpfc_port_link_failure(vport);
2543 
2544         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2545                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2546                         ndlp = lpfc_enable_node(vport, ndlp,
2547                                                 NLP_STE_UNUSED_NODE);
2548                         if (!ndlp)
2549                                 continue;
2550                         spin_lock_irq(&phba->ndlp_lock);
2551                         NLP_SET_FREE_REQ(ndlp);
2552                         spin_unlock_irq(&phba->ndlp_lock);
2553                         /* Trigger the release of the ndlp memory */
2554                         lpfc_nlp_put(ndlp);
2555                         continue;
2556                 }
2557                 spin_lock_irq(&phba->ndlp_lock);
2558                 if (NLP_CHK_FREE_REQ(ndlp)) {
2559                         /* The ndlp should not be in memory free mode already */
2560                         spin_unlock_irq(&phba->ndlp_lock);
2561                         continue;
2562                 } else
2563                         /* Indicate request for freeing ndlp memory */
2564                         NLP_SET_FREE_REQ(ndlp);
2565                 spin_unlock_irq(&phba->ndlp_lock);
2566 
2567                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2568                     ndlp->nlp_DID == Fabric_DID) {
2569                         /* Just free up ndlp with Fabric_DID for vports */
2570                         lpfc_nlp_put(ndlp);
2571                         continue;
2572                 }
2573 
2574                 /* take care of nodes in unused state before the state
2575                  * machine taking action.
2576                  */
2577                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2578                         lpfc_nlp_put(ndlp);
2579                         continue;
2580                 }
2581 
2582                 if (ndlp->nlp_type & NLP_FABRIC)
2583                         lpfc_disc_state_machine(vport, ndlp, NULL,
2584                                         NLP_EVT_DEVICE_RECOVERY);
2585 
2586                 lpfc_disc_state_machine(vport, ndlp, NULL,
2587                                              NLP_EVT_DEVICE_RM);
2588         }
2589 
2590         /* At this point, ALL ndlp's should be gone
2591          * because of the previous NLP_EVT_DEVICE_RM.
2592          * Lets wait for this to happen, if needed.
2593          */
2594         while (!list_empty(&vport->fc_nodes)) {
2595                 if (i++ > 3000) {
2596                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2597                                 "0233 Nodelist not empty\n");
2598                         list_for_each_entry_safe(ndlp, next_ndlp,
2599                                                 &vport->fc_nodes, nlp_listp) {
2600                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2601                                                 LOG_NODE,
2602                                                 "0282 did:x%x ndlp:x%p "
2603                                                 "usgmap:x%x refcnt:%d\n",
2604                                                 ndlp->nlp_DID, (void *)ndlp,
2605                                                 ndlp->nlp_usg_map,
2606                                                 atomic_read(
2607                                                         &ndlp->kref.refcount));
2608                         }
2609                         break;
2610                 }
2611 
2612                 /* Wait for any activity on ndlps to settle */
2613                 msleep(10);
2614         }
2615         lpfc_cleanup_vports_rrqs(vport, NULL);
2616 }
2617 
2618 /**
2619  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2620  * @vport: pointer to a virtual N_Port data structure.
2621  *
2622  * This routine stops all the timers associated with a @vport. This function
2623  * is invoked before disabling or deleting a @vport. Note that the physical
2624  * port is treated as @vport 0.
2625  **/
2626 void
2627 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2628 {
2629         del_timer_sync(&vport->els_tmofunc);
2630         del_timer_sync(&vport->delayed_disc_tmo);
2631         lpfc_can_disctmo(vport);
2632         return;
2633 }
2634 
2635 /**
2636  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2637  * @phba: pointer to lpfc hba data structure.
2638  *
2639  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2640  * caller of this routine should already hold the host lock.
2641  **/
2642 void
2643 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2644 {
2645         /* Clear pending FCF rediscovery wait flag */
2646         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2647 
2648         /* Now, try to stop the timer */
2649         del_timer(&phba->fcf.redisc_wait);
2650 }
2651 
2652 /**
2653  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2654  * @phba: pointer to lpfc hba data structure.
2655  *
2656  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2657  * checks whether the FCF rediscovery wait timer is pending with the host
2658  * lock held before proceeding with disabling the timer and clearing the
2659  * wait timer pendig flag.
2660  **/
2661 void
2662 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2663 {
2664         spin_lock_irq(&phba->hbalock);
2665         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2666                 /* FCF rediscovery timer already fired or stopped */
2667                 spin_unlock_irq(&phba->hbalock);
2668                 return;
2669         }
2670         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2671         /* Clear failover in progress flags */
2672         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2673         spin_unlock_irq(&phba->hbalock);
2674 }
2675 
2676 /**
2677  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2678  * @phba: pointer to lpfc hba data structure.
2679  *
2680  * This routine stops all the timers associated with a HBA. This function is
2681  * invoked before either putting a HBA offline or unloading the driver.
2682  **/
2683 void
2684 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2685 {
2686         lpfc_stop_vport_timers(phba->pport);
2687         del_timer_sync(&phba->sli.mbox_tmo);
2688         del_timer_sync(&phba->fabric_block_timer);
2689         del_timer_sync(&phba->eratt_poll);
2690         del_timer_sync(&phba->hb_tmofunc);
2691         if (phba->sli_rev == LPFC_SLI_REV4) {
2692                 del_timer_sync(&phba->rrq_tmr);
2693                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2694         }
2695         phba->hb_outstanding = 0;
2696 
2697         switch (phba->pci_dev_grp) {
2698         case LPFC_PCI_DEV_LP:
2699                 /* Stop any LightPulse device specific driver timers */
2700                 del_timer_sync(&phba->fcp_poll_timer);
2701                 break;
2702         case LPFC_PCI_DEV_OC:
2703                 /* Stop any OneConnect device sepcific driver timers */
2704                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2705                 break;
2706         default:
2707                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2708                                 "0297 Invalid device group (x%x)\n",
2709                                 phba->pci_dev_grp);
2710                 break;
2711         }
2712         return;
2713 }
2714 
2715 /**
2716  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2717  * @phba: pointer to lpfc hba data structure.
2718  *
2719  * This routine marks a HBA's management interface as blocked. Once the HBA's
2720  * management interface is marked as blocked, all the user space access to
2721  * the HBA, whether they are from sysfs interface or libdfc interface will
2722  * all be blocked. The HBA is set to block the management interface when the
2723  * driver prepares the HBA interface for online or offline.
2724  **/
2725 static void
2726 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2727 {
2728         unsigned long iflag;
2729         uint8_t actcmd = MBX_HEARTBEAT;
2730         unsigned long timeout;
2731 
2732         spin_lock_irqsave(&phba->hbalock, iflag);
2733         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2734         spin_unlock_irqrestore(&phba->hbalock, iflag);
2735         if (mbx_action == LPFC_MBX_NO_WAIT)
2736                 return;
2737         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2738         spin_lock_irqsave(&phba->hbalock, iflag);
2739         if (phba->sli.mbox_active) {
2740                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2741                 /* Determine how long we might wait for the active mailbox
2742                  * command to be gracefully completed by firmware.
2743                  */
2744                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2745                                 phba->sli.mbox_active) * 1000) + jiffies;
2746         }
2747         spin_unlock_irqrestore(&phba->hbalock, iflag);
2748 
2749         /* Wait for the outstnading mailbox command to complete */
2750         while (phba->sli.mbox_active) {
2751                 /* Check active mailbox complete status every 2ms */
2752                 msleep(2);
2753                 if (time_after(jiffies, timeout)) {
2754                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2755                                 "2813 Mgmt IO is Blocked %x "
2756                                 "- mbox cmd %x still active\n",
2757                                 phba->sli.sli_flag, actcmd);
2758                         break;
2759                 }
2760         }
2761 }
2762 
2763 /**
2764  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2765  * @phba: pointer to lpfc hba data structure.
2766  *
2767  * Allocate RPIs for all active remote nodes. This is needed whenever
2768  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2769  * is to fixup the temporary rpi assignments.
2770  **/
2771 void
2772 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2773 {
2774         struct lpfc_nodelist  *ndlp, *next_ndlp;
2775         struct lpfc_vport **vports;
2776         int i;
2777 
2778         if (phba->sli_rev != LPFC_SLI_REV4)
2779                 return;
2780 
2781         vports = lpfc_create_vport_work_array(phba);
2782         if (vports != NULL) {
2783                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2784                         if (vports[i]->load_flag & FC_UNLOADING)
2785                                 continue;
2786 
2787                         list_for_each_entry_safe(ndlp, next_ndlp,
2788                                                  &vports[i]->fc_nodes,
2789                                                  nlp_listp) {
2790                                 if (NLP_CHK_NODE_ACT(ndlp)) {
2791                                         ndlp->nlp_rpi =
2792                                                 lpfc_sli4_alloc_rpi(phba);
2793                                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
2794                                                          LOG_NODE,
2795                                                          "0009 rpi:%x DID:%x "
2796                                                          "flg:%x map:%x %p\n",
2797                                                          ndlp->nlp_rpi,
2798                                                          ndlp->nlp_DID,
2799                                                          ndlp->nlp_flag,
2800                                                          ndlp->nlp_usg_map,
2801                                                          ndlp);
2802                                 }
2803                         }
2804                 }
2805         }
2806         lpfc_destroy_vport_work_array(phba, vports);
2807 }
2808 
2809 /**
2810  * lpfc_online - Initialize and bring a HBA online
2811  * @phba: pointer to lpfc hba data structure.
2812  *
2813  * This routine initializes the HBA and brings a HBA online. During this
2814  * process, the management interface is blocked to prevent user space access
2815  * to the HBA interfering with the driver initialization.
2816  *
2817  * Return codes
2818  *   0 - successful
2819  *   1 - failed
2820  **/
2821 int
2822 lpfc_online(struct lpfc_hba *phba)
2823 {
2824         struct lpfc_vport *vport;
2825         struct lpfc_vport **vports;
2826         int i;
2827         bool vpis_cleared = false;
2828 
2829         if (!phba)
2830                 return 0;
2831         vport = phba->pport;
2832 
2833         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2834                 return 0;
2835 
2836         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2837                         "0458 Bring Adapter online\n");
2838 
2839         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2840 
2841         if (!lpfc_sli_queue_setup(phba)) {
2842                 lpfc_unblock_mgmt_io(phba);
2843                 return 1;
2844         }
2845 
2846         if (phba->sli_rev == LPFC_SLI_REV4) {
2847                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2848                         lpfc_unblock_mgmt_io(phba);
2849                         return 1;
2850                 }
2851                 spin_lock_irq(&phba->hbalock);
2852                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2853                         vpis_cleared = true;
2854                 spin_unlock_irq(&phba->hbalock);
2855         } else {
2856                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2857                         lpfc_unblock_mgmt_io(phba);
2858                         return 1;
2859                 }
2860         }
2861 
2862         vports = lpfc_create_vport_work_array(phba);
2863         if (vports != NULL)
2864                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2865                         struct Scsi_Host *shost;
2866                         shost = lpfc_shost_from_vport(vports[i]);
2867                         spin_lock_irq(shost->host_lock);
2868                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2869                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2870                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2871                         if (phba->sli_rev == LPFC_SLI_REV4) {
2872                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2873                                 if ((vpis_cleared) &&
2874                                     (vports[i]->port_type !=
2875                                         LPFC_PHYSICAL_PORT))
2876                                         vports[i]->vpi = 0;
2877                         }
2878                         spin_unlock_irq(shost->host_lock);
2879                 }
2880                 lpfc_destroy_vport_work_array(phba, vports);
2881 
2882         lpfc_unblock_mgmt_io(phba);
2883         return 0;
2884 }
2885 
2886 /**
2887  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2888  * @phba: pointer to lpfc hba data structure.
2889  *
2890  * This routine marks a HBA's management interface as not blocked. Once the
2891  * HBA's management interface is marked as not blocked, all the user space
2892  * access to the HBA, whether they are from sysfs interface or libdfc
2893  * interface will be allowed. The HBA is set to block the management interface
2894  * when the driver prepares the HBA interface for online or offline and then
2895  * set to unblock the management interface afterwards.
2896  **/
2897 void
2898 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2899 {
2900         unsigned long iflag;
2901 
2902         spin_lock_irqsave(&phba->hbalock, iflag);
2903         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2904         spin_unlock_irqrestore(&phba->hbalock, iflag);
2905 }
2906 
2907 /**
2908  * lpfc_offline_prep - Prepare a HBA to be brought offline
2909  * @phba: pointer to lpfc hba data structure.
2910  *
2911  * This routine is invoked to prepare a HBA to be brought offline. It performs
2912  * unregistration login to all the nodes on all vports and flushes the mailbox
2913  * queue to make it ready to be brought offline.
2914  **/
2915 void
2916 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2917 {
2918         struct lpfc_vport *vport = phba->pport;
2919         struct lpfc_nodelist  *ndlp, *next_ndlp;
2920         struct lpfc_vport **vports;
2921         struct Scsi_Host *shost;
2922         int i;
2923 
2924         if (vport->fc_flag & FC_OFFLINE_MODE)
2925                 return;
2926 
2927         lpfc_block_mgmt_io(phba, mbx_action);
2928 
2929         lpfc_linkdown(phba);
2930 
2931         /* Issue an unreg_login to all nodes on all vports */
2932         vports = lpfc_create_vport_work_array(phba);
2933         if (vports != NULL) {
2934                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2935                         if (vports[i]->load_flag & FC_UNLOADING)
2936                                 continue;
2937                         shost = lpfc_shost_from_vport(vports[i]);
2938                         spin_lock_irq(shost->host_lock);
2939                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2940                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2941                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2942                         spin_unlock_irq(shost->host_lock);
2943 
2944                         shost = lpfc_shost_from_vport(vports[i]);
2945                         list_for_each_entry_safe(ndlp, next_ndlp,
2946                                                  &vports[i]->fc_nodes,
2947                                                  nlp_listp) {
2948                                 if (!NLP_CHK_NODE_ACT(ndlp))
2949                                         continue;
2950                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2951                                         continue;
2952                                 if (ndlp->nlp_type & NLP_FABRIC) {
2953                                         lpfc_disc_state_machine(vports[i], ndlp,
2954                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2955                                         lpfc_disc_state_machine(vports[i], ndlp,
2956                                                 NULL, NLP_EVT_DEVICE_RM);
2957                                 }
2958                                 spin_lock_irq(shost->host_lock);
2959                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2960                                 spin_unlock_irq(shost->host_lock);
2961                                 /*
2962                                  * Whenever an SLI4 port goes offline, free the
2963                                  * RPI. Get a new RPI when the adapter port
2964                                  * comes back online.
2965                                  */
2966                                 if (phba->sli_rev == LPFC_SLI_REV4) {
2967                                         lpfc_printf_vlog(ndlp->vport,
2968                                                          KERN_INFO, LOG_NODE,
2969                                                          "0011 lpfc_offline: "
2970                                                          "ndlp:x%p did %x "
2971                                                          "usgmap:x%x rpi:%x\n",
2972                                                          ndlp, ndlp->nlp_DID,
2973                                                          ndlp->nlp_usg_map,
2974                                                          ndlp->nlp_rpi);
2975 
2976                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2977                                 }
2978                                 lpfc_unreg_rpi(vports[i], ndlp);
2979                         }
2980                 }
2981         }
2982         lpfc_destroy_vport_work_array(phba, vports);
2983 
2984         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2985 }
2986 
2987 /**
2988  * lpfc_offline - Bring a HBA offline
2989  * @phba: pointer to lpfc hba data structure.
2990  *
2991  * This routine actually brings a HBA offline. It stops all the timers
2992  * associated with the HBA, brings down the SLI layer, and eventually
2993  * marks the HBA as in offline state for the upper layer protocol.
2994  **/
2995 void
2996 lpfc_offline(struct lpfc_hba *phba)
2997 {
2998         struct Scsi_Host  *shost;
2999         struct lpfc_vport **vports;
3000         int i;
3001 
3002         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3003                 return;
3004 
3005         /* stop port and all timers associated with this hba */
3006         lpfc_stop_port(phba);
3007         vports = lpfc_create_vport_work_array(phba);
3008         if (vports != NULL)
3009                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3010                         lpfc_stop_vport_timers(vports[i]);
3011         lpfc_destroy_vport_work_array(phba, vports);
3012         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3013                         "0460 Bring Adapter offline\n");
3014         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3015            now.  */
3016         lpfc_sli_hba_down(phba);
3017         spin_lock_irq(&phba->hbalock);
3018         phba->work_ha = 0;
3019         spin_unlock_irq(&phba->hbalock);
3020         vports = lpfc_create_vport_work_array(phba);
3021         if (vports != NULL)
3022                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3023                         shost = lpfc_shost_from_vport(vports[i]);
3024                         spin_lock_irq(shost->host_lock);
3025                         vports[i]->work_port_events = 0;
3026                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3027                         spin_unlock_irq(shost->host_lock);
3028                 }
3029         lpfc_destroy_vport_work_array(phba, vports);
3030 }
3031 
3032 /**
3033  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3034  * @phba: pointer to lpfc hba data structure.
3035  *
3036  * This routine is to free all the SCSI buffers and IOCBs from the driver
3037  * list back to kernel. It is called from lpfc_pci_remove_one to free
3038  * the internal resources before the device is removed from the system.
3039  **/
3040 static void
3041 lpfc_scsi_free(struct lpfc_hba *phba)
3042 {
3043         struct lpfc_scsi_buf *sb, *sb_next;
3044         struct lpfc_iocbq *io, *io_next;
3045 
3046         spin_lock_irq(&phba->hbalock);
3047 
3048         /* Release all the lpfc_scsi_bufs maintained by this host. */
3049 
3050         spin_lock(&phba->scsi_buf_list_put_lock);
3051         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3052                                  list) {
3053                 list_del(&sb->list);
3054                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3055                               sb->dma_handle);
3056                 kfree(sb);
3057                 phba->total_scsi_bufs--;
3058         }
3059         spin_unlock(&phba->scsi_buf_list_put_lock);
3060 
3061         spin_lock(&phba->scsi_buf_list_get_lock);
3062         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3063                                  list) {
3064                 list_del(&sb->list);
3065                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3066                               sb->dma_handle);
3067                 kfree(sb);
3068                 phba->total_scsi_bufs--;
3069         }
3070         spin_unlock(&phba->scsi_buf_list_get_lock);
3071 
3072         /* Release all the lpfc_iocbq entries maintained by this host. */
3073         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3074                 list_del(&io->list);
3075                 kfree(io);
3076                 phba->total_iocbq_bufs--;
3077         }
3078 
3079         spin_unlock_irq(&phba->hbalock);
3080 }
3081 
3082 /**
3083  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3084  * @phba: pointer to lpfc hba data structure.
3085  *
3086  * This routine first calculates the sizes of the current els and allocated
3087  * scsi sgl lists, and then goes through all sgls to updates the physical
3088  * XRIs assigned due to port function reset. During port initialization, the
3089  * current els and allocated scsi sgl lists are 0s.
3090  *
3091  * Return codes
3092  *   0 - successful (for now, it always returns 0)
3093  **/
3094 int
3095 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3096 {
3097         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3098         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3099         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3100         LIST_HEAD(els_sgl_list);
3101         LIST_HEAD(scsi_sgl_list);
3102         int rc;
3103         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3104 
3105         /*
3106          * update on pci function's els xri-sgl list
3107          */
3108         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3109         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3110                 /* els xri-sgl expanded */
3111                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3112                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3113                                 "3157 ELS xri-sgl count increased from "
3114                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3115                                 els_xri_cnt);
3116                 /* allocate the additional els sgls */
3117                 for (i = 0; i < xri_cnt; i++) {
3118                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3119                                              GFP_KERNEL);
3120                         if (sglq_entry == NULL) {
3121                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3122                                                 "2562 Failure to allocate an "
3123                                                 "ELS sgl entry:%d\n", i);
3124                                 rc = -ENOMEM;
3125                                 goto out_free_mem;
3126                         }
3127                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3128                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3129                                                            &sglq_entry->phys);
3130                         if (sglq_entry->virt == NULL) {
3131                                 kfree(sglq_entry);
3132                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3133                                                 "2563 Failure to allocate an "
3134                                                 "ELS mbuf:%d\n", i);
3135                                 rc = -ENOMEM;
3136                                 goto out_free_mem;
3137                         }
3138                         sglq_entry->sgl = sglq_entry->virt;
3139                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3140                         sglq_entry->state = SGL_FREED;
3141                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3142                 }
3143                 spin_lock_irq(&phba->hbalock);
3144                 spin_lock(&pring->ring_lock);
3145                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3146                 spin_unlock(&pring->ring_lock);
3147                 spin_unlock_irq(&phba->hbalock);
3148         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3149                 /* els xri-sgl shrinked */
3150                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3151                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3152                                 "3158 ELS xri-sgl count decreased from "
3153                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3154                                 els_xri_cnt);
3155                 spin_lock_irq(&phba->hbalock);
3156                 spin_lock(&pring->ring_lock);
3157                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3158                 spin_unlock(&pring->ring_lock);
3159                 spin_unlock_irq(&phba->hbalock);
3160                 /* release extra els sgls from list */
3161                 for (i = 0; i < xri_cnt; i++) {
3162                         list_remove_head(&els_sgl_list,
3163                                          sglq_entry, struct lpfc_sglq, list);
3164                         if (sglq_entry) {
3165                                 lpfc_mbuf_free(phba, sglq_entry->virt,
3166                                                sglq_entry->phys);
3167                                 kfree(sglq_entry);
3168                         }
3169                 }
3170                 spin_lock_irq(&phba->hbalock);
3171                 spin_lock(&pring->ring_lock);
3172                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3173                 spin_unlock(&pring->ring_lock);
3174                 spin_unlock_irq(&phba->hbalock);
3175         } else
3176                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3177                                 "3163 ELS xri-sgl count unchanged: %d\n",
3178                                 els_xri_cnt);
3179         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3180 
3181         /* update xris to els sgls on the list */
3182         sglq_entry = NULL;
3183         sglq_entry_next = NULL;
3184         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3185                                  &phba->sli4_hba.lpfc_sgl_list, list) {
3186                 lxri = lpfc_sli4_next_xritag(phba);
3187                 if (lxri == NO_XRI) {
3188                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3189                                         "2400 Failed to allocate xri for "
3190                                         "ELS sgl\n");
3191                         rc = -ENOMEM;
3192                         goto out_free_mem;
3193                 }
3194                 sglq_entry->sli4_lxritag = lxri;
3195                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3196         }
3197 
3198         /*
3199          * update on pci function's allocated scsi xri-sgl list
3200          */
3201         phba->total_scsi_bufs = 0;
3202 
3203         /* maximum number of xris available for scsi buffers */
3204         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3205                                       els_xri_cnt;
3206 
3207         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3208                         "2401 Current allocated SCSI xri-sgl count:%d, "
3209                         "maximum  SCSI xri count:%d\n",
3210                         phba->sli4_hba.scsi_xri_cnt,
3211                         phba->sli4_hba.scsi_xri_max);
3212 
3213         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3214         spin_lock(&phba->scsi_buf_list_put_lock);
3215         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3216         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3217         spin_unlock(&phba->scsi_buf_list_put_lock);
3218         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3219 
3220         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3221                 /* max scsi xri shrinked below the allocated scsi buffers */
3222                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3223                                         phba->sli4_hba.scsi_xri_max;
3224                 /* release the extra allocated scsi buffers */
3225                 for (i = 0; i < scsi_xri_cnt; i++) {
3226                         list_remove_head(&scsi_sgl_list, psb,
3227                                          struct lpfc_scsi_buf, list);
3228                         if (psb) {
3229                                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
3230                                               psb->data, psb->dma_handle);
3231                                 kfree(psb);
3232                         }
3233                 }
3234                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3235                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3236                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3237         }
3238 
3239         /* update xris associated to remaining allocated scsi buffers */
3240         psb = NULL;
3241         psb_next = NULL;
3242         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3243                 lxri = lpfc_sli4_next_xritag(phba);
3244                 if (lxri == NO_XRI) {
3245                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3246                                         "2560 Failed to allocate xri for "
3247                                         "scsi buffer\n");
3248                         rc = -ENOMEM;
3249                         goto out_free_mem;
3250                 }
3251                 psb->cur_iocbq.sli4_lxritag = lxri;
3252                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3253         }
3254         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3255         spin_lock(&phba->scsi_buf_list_put_lock);
3256         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3257         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3258         spin_unlock(&phba->scsi_buf_list_put_lock);
3259         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3260 
3261         return 0;
3262 
3263 out_free_mem:
3264         lpfc_free_els_sgl_list(phba);
3265         lpfc_scsi_free(phba);
3266         return rc;
3267 }
3268 
3269 /**
3270  * lpfc_create_port - Create an FC port
3271  * @phba: pointer to lpfc hba data structure.
3272  * @instance: a unique integer ID to this FC port.
3273  * @dev: pointer to the device data structure.
3274  *
3275  * This routine creates a FC port for the upper layer protocol. The FC port
3276  * can be created on top of either a physical port or a virtual port provided
3277  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3278  * and associates the FC port created before adding the shost into the SCSI
3279  * layer.
3280  *
3281  * Return codes
3282  *   @vport - pointer to the virtual N_Port data structure.
3283  *   NULL - port create failed.
3284  **/
3285 struct lpfc_vport *
3286 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3287 {
3288         struct lpfc_vport *vport;
3289         struct Scsi_Host  *shost;
3290         int error = 0;
3291 
3292         if (dev != &phba->pcidev->dev) {
3293                 shost = scsi_host_alloc(&lpfc_vport_template,
3294                                         sizeof(struct lpfc_vport));
3295         } else {
3296                 if (phba->sli_rev == LPFC_SLI_REV4)
3297                         shost = scsi_host_alloc(&lpfc_template,
3298                                         sizeof(struct lpfc_vport));
3299                 else
3300                         shost = scsi_host_alloc(&lpfc_template_s3,
3301                                         sizeof(struct lpfc_vport));
3302         }
3303         if (!shost)
3304                 goto out;
3305 
3306         vport = (struct lpfc_vport *) shost->hostdata;
3307         vport->phba = phba;
3308         vport->load_flag |= FC_LOADING;
3309         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3310         vport->fc_rscn_flush = 0;
3311 
3312         lpfc_get_vport_cfgparam(vport);
3313         shost->unique_id = instance;
3314         shost->max_id = LPFC_MAX_TARGET;
3315         shost->max_lun = vport->cfg_max_luns;
3316         shost->this_id = -1;
3317         shost->max_cmd_len = 16;
3318         shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3319         if (phba->sli_rev == LPFC_SLI_REV4) {
3320                 shost->dma_boundary =
3321                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3322                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3323         }
3324 
3325         /*
3326          * Set initial can_queue value since 0 is no longer supported and
3327          * scsi_add_host will fail. This will be adjusted later based on the
3328          * max xri value determined in hba setup.
3329          */
3330         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3331         if (dev != &phba->pcidev->dev) {
3332                 shost->transportt = lpfc_vport_transport_template;
3333                 vport->port_type = LPFC_NPIV_PORT;
3334         } else {
3335                 shost->transportt = lpfc_transport_template;
3336                 vport->port_type = LPFC_PHYSICAL_PORT;
3337         }
3338 
3339         /* Initialize all internally managed lists. */
3340         INIT_LIST_HEAD(&vport->fc_nodes);
3341         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3342         spin_lock_init(&vport->work_port_lock);
3343 
3344         init_timer(&vport->fc_disctmo);
3345         vport->fc_disctmo.function = lpfc_disc_timeout;
3346         vport->fc_disctmo.data = (unsigned long)vport;
3347 
3348         init_timer(&vport->els_tmofunc);
3349         vport->els_tmofunc.function = lpfc_els_timeout;
3350         vport->els_tmofunc.data = (unsigned long)vport;
3351 
3352         init_timer(&vport->delayed_disc_tmo);
3353         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3354         vport->delayed_disc_tmo.data = (unsigned long)vport;
3355 
3356         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3357         if (error)
3358                 goto out_put_shost;
3359 
3360         spin_lock_irq(&phba->hbalock);
3361         list_add_tail(&vport->listentry, &phba->port_list);
3362         spin_unlock_irq(&phba->hbalock);
3363         return vport;
3364 
3365 out_put_shost:
3366         scsi_host_put(shost);
3367 out:
3368         return NULL;
3369 }
3370 
3371 /**
3372  * destroy_port -  destroy an FC port
3373  * @vport: pointer to an lpfc virtual N_Port data structure.
3374  *
3375  * This routine destroys a FC port from the upper layer protocol. All the
3376  * resources associated with the port are released.
3377  **/
3378 void
3379 destroy_port(struct lpfc_vport *vport)
3380 {
3381         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3382         struct lpfc_hba  *phba = vport->phba;
3383 
3384         lpfc_debugfs_terminate(vport);
3385         fc_remove_host(shost);
3386         scsi_remove_host(shost);
3387 
3388         spin_lock_irq(&phba->hbalock);
3389         list_del_init(&vport->listentry);
3390         spin_unlock_irq(&phba->hbalock);
3391 
3392         lpfc_cleanup(vport);
3393         return;
3394 }
3395 
3396 /**
3397  * lpfc_get_instance - Get a unique integer ID
3398  *
3399  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3400  * uses the kernel idr facility to perform the task.
3401  *
3402  * Return codes:
3403  *   instance - a unique integer ID allocated as the new instance.
3404  *   -1 - lpfc get instance failed.
3405  **/
3406 int
3407 lpfc_get_instance(void)
3408 {
3409         int ret;
3410 
3411         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3412         return ret < 0 ? -1 : ret;
3413 }
3414 
3415 /**
3416  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3417  * @shost: pointer to SCSI host data structure.
3418  * @time: elapsed time of the scan in jiffies.
3419  *
3420  * This routine is called by the SCSI layer with a SCSI host to determine
3421  * whether the scan host is finished.
3422  *
3423  * Note: there is no scan_start function as adapter initialization will have
3424  * asynchronously kicked off the link initialization.
3425  *
3426  * Return codes
3427  *   0 - SCSI host scan is not over yet.
3428  *   1 - SCSI host scan is over.
3429  **/
3430 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3431 {
3432         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3433         struct lpfc_hba   *phba = vport->phba;
3434         int stat = 0;
3435 
3436         spin_lock_irq(shost->host_lock);
3437 
3438         if (vport->load_flag & FC_UNLOADING) {
3439                 stat = 1;
3440                 goto finished;
3441         }
3442         if (time >= msecs_to_jiffies(30 * 1000)) {
3443                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3444                                 "0461 Scanning longer than 30 "
3445                                 "seconds.  Continuing initialization\n");
3446                 stat = 1;
3447                 goto finished;
3448         }
3449         if (time >= msecs_to_jiffies(15 * 1000) &&
3450             phba->link_state <= LPFC_LINK_DOWN) {
3451                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3452                                 "0465 Link down longer than 15 "
3453                                 "seconds.  Continuing initialization\n");
3454                 stat = 1;
3455                 goto finished;
3456         }
3457 
3458         if (vport->port_state != LPFC_VPORT_READY)
3459                 goto finished;
3460         if (vport->num_disc_nodes || vport->fc_prli_sent)
3461                 goto finished;
3462         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3463                 goto finished;
3464         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3465                 goto finished;
3466 
3467         stat = 1;
3468 
3469 finished:
3470         spin_unlock_irq(shost->host_lock);
3471         return stat;
3472 }
3473 
3474 /**
3475  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3476  * @shost: pointer to SCSI host data structure.
3477  *
3478  * This routine initializes a given SCSI host attributes on a FC port. The
3479  * SCSI host can be either on top of a physical port or a virtual port.
3480  **/
3481 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3482 {
3483         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3484         struct lpfc_hba   *phba = vport->phba;
3485         /*
3486          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3487          */
3488 
3489         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3490         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3491         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3492 
3493         memset(fc_host_supported_fc4s(shost), 0,
3494                sizeof(fc_host_supported_fc4s(shost)));
3495         fc_host_supported_fc4s(shost)[2] = 1;
3496         fc_host_supported_fc4s(shost)[7] = 1;
3497 
3498         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3499                                  sizeof fc_host_symbolic_name(shost));
3500 
3501         fc_host_supported_speeds(shost) = 0;
3502         if (phba->lmt & LMT_32Gb)
3503                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
3504         if (phba->lmt & LMT_16Gb)
3505                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3506         if (phba->lmt & LMT_10Gb)
3507                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3508         if (phba->lmt & LMT_8Gb)
3509                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3510         if (phba->lmt & LMT_4Gb)
3511                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3512         if (phba->lmt & LMT_2Gb)
3513                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3514         if (phba->lmt & LMT_1Gb)
3515                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3516 
3517         fc_host_maxframe_size(shost) =
3518                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3519                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3520 
3521         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3522 
3523         /* This value is also unchanging */
3524         memset(fc_host_active_fc4s(shost), 0,
3525                sizeof(fc_host_active_fc4s(shost)));
3526         fc_host_active_fc4s(shost)[2] = 1;
3527         fc_host_active_fc4s(shost)[7] = 1;
3528 
3529         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3530         spin_lock_irq(shost->host_lock);
3531         vport->load_flag &= ~FC_LOADING;
3532         spin_unlock_irq(shost->host_lock);
3533 }
3534 
3535 /**
3536  * lpfc_stop_port_s3 - Stop SLI3 device port
3537  * @phba: pointer to lpfc hba data structure.
3538  *
3539  * This routine is invoked to stop an SLI3 device port, it stops the device
3540  * from generating interrupts and stops the device driver's timers for the
3541  * device.
3542  **/
3543 static void
3544 lpfc_stop_port_s3(struct lpfc_hba *phba)
3545 {
3546         /* Clear all interrupt enable conditions */
3547         writel(0, phba->HCregaddr);
3548         readl(phba->HCregaddr); /* flush */
3549         /* Clear all pending interrupts */
3550         writel(0xffffffff, phba->HAregaddr);
3551         readl(phba->HAregaddr); /* flush */
3552 
3553         /* Reset some HBA SLI setup states */
3554         lpfc_stop_hba_timers(phba);
3555         phba->pport->work_port_events = 0;
3556 }
3557 
3558 /**
3559  * lpfc_stop_port_s4 - Stop SLI4 device port
3560  * @phba: pointer to lpfc hba data structure.
3561  *
3562  * This routine is invoked to stop an SLI4 device port, it stops the device
3563  * from generating interrupts and stops the device driver's timers for the
3564  * device.
3565  **/
3566 static void
3567 lpfc_stop_port_s4(struct lpfc_hba *phba)
3568 {
3569         /* Reset some HBA SLI4 setup states */
3570         lpfc_stop_hba_timers(phba);
3571         phba->pport->work_port_events = 0;
3572         phba->sli4_hba.intr_enable = 0;
3573 }
3574 
3575 /**
3576  * lpfc_stop_port - Wrapper function for stopping hba port
3577  * @phba: Pointer to HBA context object.
3578  *
3579  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3580  * the API jump table function pointer from the lpfc_hba struct.
3581  **/
3582 void
3583 lpfc_stop_port(struct lpfc_hba *phba)
3584 {
3585         phba->lpfc_stop_port(phba);
3586 }
3587 
3588 /**
3589  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3590  * @phba: Pointer to hba for which this call is being executed.
3591  *
3592  * This routine starts the timer waiting for the FCF rediscovery to complete.
3593  **/
3594 void
3595 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3596 {
3597         unsigned long fcf_redisc_wait_tmo =
3598                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3599         /* Start fcf rediscovery wait period timer */
3600         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3601         spin_lock_irq(&phba->hbalock);
3602         /* Allow action to new fcf asynchronous event */
3603         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3604         /* Mark the FCF rediscovery pending state */
3605         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3606         spin_unlock_irq(&phba->hbalock);
3607 }
3608 
3609 /**
3610  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3611  * @ptr: Map to lpfc_hba data structure pointer.
3612  *
3613  * This routine is invoked when waiting for FCF table rediscover has been
3614  * timed out. If new FCF record(s) has (have) been discovered during the
3615  * wait period, a new FCF event shall be added to the FCOE async event
3616  * list, and then worker thread shall be waked up for processing from the
3617  * worker thread context.
3618  **/
3619 static void
3620 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3621 {
3622         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3623 
3624         /* Don't send FCF rediscovery event if timer cancelled */
3625         spin_lock_irq(&phba->hbalock);
3626         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3627                 spin_unlock_irq(&phba->hbalock);
3628                 return;
3629         }
3630         /* Clear FCF rediscovery timer pending flag */
3631         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3632         /* FCF rediscovery event to worker thread */
3633         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3634         spin_unlock_irq(&phba->hbalock);
3635         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3636                         "2776 FCF rediscover quiescent timer expired\n");
3637         /* wake up worker thread */
3638         lpfc_worker_wake_up(phba);
3639 }
3640 
3641 /**
3642  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3643  * @phba: pointer to lpfc hba data structure.
3644  * @acqe_link: pointer to the async link completion queue entry.
3645  *
3646  * This routine is to parse the SLI4 link-attention link fault code and
3647  * translate it into the base driver's read link attention mailbox command
3648  * status.
3649  *
3650  * Return: Link-attention status in terms of base driver's coding.
3651  **/
3652 static uint16_t
3653 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3654                            struct lpfc_acqe_link *acqe_link)
3655 {
3656         uint16_t latt_fault;
3657 
3658         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3659         case LPFC_ASYNC_LINK_FAULT_NONE:
3660         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3661         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3662                 latt_fault = 0;
3663                 break;
3664         default:
3665                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3666                                 "0398 Invalid link fault code: x%x\n",
3667                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3668                 latt_fault = MBXERR_ERROR;
3669                 break;
3670         }
3671         return latt_fault;
3672 }
3673 
3674 /**
3675  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3676  * @phba: pointer to lpfc hba data structure.
3677  * @acqe_link: pointer to the async link completion queue entry.
3678  *
3679  * This routine is to parse the SLI4 link attention type and translate it
3680  * into the base driver's link attention type coding.
3681  *
3682  * Return: Link attention type in terms of base driver's coding.
3683  **/
3684 static uint8_t
3685 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3686                           struct lpfc_acqe_link *acqe_link)
3687 {
3688         uint8_t att_type;
3689 
3690         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3691         case LPFC_ASYNC_LINK_STATUS_DOWN:
3692         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3693                 att_type = LPFC_ATT_LINK_DOWN;
3694                 break;
3695         case LPFC_ASYNC_LINK_STATUS_UP:
3696                 /* Ignore physical link up events - wait for logical link up */
3697                 att_type = LPFC_ATT_RESERVED;
3698                 break;
3699         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3700                 att_type = LPFC_ATT_LINK_UP;
3701                 break;
3702         default:
3703                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3704                                 "0399 Invalid link attention type: x%x\n",
3705                                 bf_get(lpfc_acqe_link_status, acqe_link));
3706                 att_type = LPFC_ATT_RESERVED;
3707                 break;
3708         }
3709         return att_type;
3710 }
3711 
3712 /**
3713  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3714  * @phba: pointer to lpfc hba data structure.
3715  *
3716  * This routine is to get an SLI3 FC port's link speed in Mbps.
3717  *
3718  * Return: link speed in terms of Mbps.
3719  **/
3720 uint32_t
3721 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3722 {
3723         uint32_t link_speed;
3724 
3725         if (!lpfc_is_link_up(phba))
3726                 return 0;
3727 
3728         if (phba->sli_rev <= LPFC_SLI_REV3) {
3729                 switch (phba->fc_linkspeed) {
3730                 case LPFC_LINK_SPEED_1GHZ:
3731                         link_speed = 1000;
3732                         break;
3733                 case LPFC_LINK_SPEED_2GHZ:
3734                         link_speed = 2000;
3735                         break;
3736                 case LPFC_LINK_SPEED_4GHZ:
3737                         link_speed = 4000;
3738                         break;
3739                 case LPFC_LINK_SPEED_8GHZ:
3740                         link_speed = 8000;
3741                         break;
3742                 case LPFC_LINK_SPEED_10GHZ:
3743                         link_speed = 10000;
3744                         break;
3745                 case LPFC_LINK_SPEED_16GHZ:
3746                         link_speed = 16000;
3747                         break;
3748                 default:
3749                         link_speed = 0;
3750                 }
3751         } else {
3752                 if (phba->sli4_hba.link_state.logical_speed)
3753                         link_speed =
3754                               phba->sli4_hba.link_state.logical_speed;
3755                 else
3756                         link_speed = phba->sli4_hba.link_state.speed;
3757         }
3758         return link_speed;
3759 }
3760 
3761 /**
3762  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3763  * @phba: pointer to lpfc hba data structure.
3764  * @evt_code: asynchronous event code.
3765  * @speed_code: asynchronous event link speed code.
3766  *
3767  * This routine is to parse the giving SLI4 async event link speed code into
3768  * value of Mbps for the link speed.
3769  *
3770  * Return: link speed in terms of Mbps.
3771  **/
3772 static uint32_t
3773 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3774                            uint8_t speed_code)
3775 {
3776         uint32_t port_speed;
3777 
3778         switch (evt_code) {
3779         case LPFC_TRAILER_CODE_LINK:
3780                 switch (speed_code) {
3781                 case LPFC_ASYNC_LINK_SPEED_ZERO:
3782                         port_speed = 0;
3783                         break;
3784                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3785                         port_speed = 10;
3786                         break;
3787                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3788                         port_speed = 100;
3789                         break;
3790                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3791                         port_speed = 1000;
3792                         break;
3793                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3794                         port_speed = 10000;
3795                         break;
3796                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
3797                         port_speed = 20000;
3798                         break;
3799                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
3800                         port_speed = 25000;
3801                         break;
3802                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
3803                         port_speed = 40000;
3804                         break;
3805                 default:
3806                         port_speed = 0;
3807                 }
3808                 break;
3809         case LPFC_TRAILER_CODE_FC:
3810                 switch (speed_code) {
3811                 case LPFC_FC_LA_SPEED_UNKNOWN:
3812                         port_speed = 0;
3813                         break;
3814                 case LPFC_FC_LA_SPEED_1G:
3815                         port_speed = 1000;
3816                         break;
3817                 case LPFC_FC_LA_SPEED_2G:
3818                         port_speed = 2000;
3819                         break;
3820                 case LPFC_FC_LA_SPEED_4G:
3821                         port_speed = 4000;
3822                         break;
3823                 case LPFC_FC_LA_SPEED_8G:
3824                         port_speed = 8000;
3825                         break;
3826                 case LPFC_FC_LA_SPEED_10G:
3827                         port_speed = 10000;
3828                         break;
3829                 case LPFC_FC_LA_SPEED_16G:
3830                         port_speed = 16000;
3831                         break;
3832                 case LPFC_FC_LA_SPEED_32G:
3833                         port_speed = 32000;
3834                         break;
3835                 default:
3836                         port_speed = 0;
3837                 }
3838                 break;
3839         default:
3840                 port_speed = 0;
3841         }
3842         return port_speed;
3843 }
3844 
3845 /**
3846  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3847  * @phba: pointer to lpfc hba data structure.
3848  * @acqe_link: pointer to the async link completion queue entry.
3849  *
3850  * This routine is to handle the SLI4 asynchronous FCoE link event.
3851  **/
3852 static void
3853 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3854                          struct lpfc_acqe_link *acqe_link)
3855 {
3856         struct lpfc_dmabuf *mp;
3857         LPFC_MBOXQ_t *pmb;
3858         MAILBOX_t *mb;
3859         struct lpfc_mbx_read_top *la;
3860         uint8_t att_type;
3861         int rc;
3862 
3863         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3864         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3865                 return;
3866         phba->fcoe_eventtag = acqe_link->event_tag;
3867         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3868         if (!pmb) {
3869                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3870                                 "0395 The mboxq allocation failed\n");
3871                 return;
3872         }
3873         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3874         if (!mp) {
3875                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3876                                 "0396 The lpfc_dmabuf allocation failed\n");
3877                 goto out_free_pmb;
3878         }
3879         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3880         if (!mp->virt) {
3881                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3882                                 "0397 The mbuf allocation failed\n");
3883                 goto out_free_dmabuf;
3884         }
3885 
3886         /* Cleanup any outstanding ELS commands */
3887         lpfc_els_flush_all_cmd(phba);
3888 
3889         /* Block ELS IOCBs until we have done process link event */
3890         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3891 
3892         /* Update link event statistics */
3893         phba->sli.slistat.link_event++;
3894 
3895         /* Create lpfc_handle_latt mailbox command from link ACQE */
3896         lpfc_read_topology(phba, pmb, mp);
3897         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3898         pmb->vport = phba->pport;
3899 
3900         /* Keep the link status for extra SLI4 state machine reference */
3901         phba->sli4_hba.link_state.speed =
3902                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3903                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3904         phba->sli4_hba.link_state.duplex =
3905                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3906         phba->sli4_hba.link_state.status =
3907                                 bf_get(lpfc_acqe_link_status, acqe_link);
3908         phba->sli4_hba.link_state.type =
3909                                 bf_get(lpfc_acqe_link_type, acqe_link);
3910         phba->sli4_hba.link_state.number =
3911                                 bf_get(lpfc_acqe_link_number, acqe_link);
3912         phba->sli4_hba.link_state.fault =
3913                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3914         phba->sli4_hba.link_state.logical_speed =
3915                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3916 
3917         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3918                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3919                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3920                         "Logical speed:%dMbps Fault:%d\n",
3921                         phba->sli4_hba.link_state.speed,
3922                         phba->sli4_hba.link_state.topology,
3923                         phba->sli4_hba.link_state.status,
3924                         phba->sli4_hba.link_state.type,
3925                         phba->sli4_hba.link_state.number,
3926                         phba->sli4_hba.link_state.logical_speed,
3927                         phba->sli4_hba.link_state.fault);
3928         /*
3929          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3930          * topology info. Note: Optional for non FC-AL ports.
3931          */
3932         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3933                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3934                 if (rc == MBX_NOT_FINISHED)
3935                         goto out_free_dmabuf;
3936                 return;
3937         }
3938         /*
3939          * For FCoE Mode: fill in all the topology information we need and call
3940          * the READ_TOPOLOGY completion routine to continue without actually
3941          * sending the READ_TOPOLOGY mailbox command to the port.
3942          */
3943         /* Parse and translate status field */
3944         mb = &pmb->u.mb;
3945         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3946 
3947         /* Parse and translate link attention fields */
3948         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3949         la->eventTag = acqe_link->event_tag;
3950         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3951         bf_set(lpfc_mbx_read_top_link_spd, la,
3952                (bf_get(lpfc_acqe_link_speed, acqe_link)));
3953 
3954         /* Fake the the following irrelvant fields */
3955         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3956         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3957         bf_set(lpfc_mbx_read_top_il, la, 0);
3958         bf_set(lpfc_mbx_read_top_pb, la, 0);
3959         bf_set(lpfc_mbx_read_top_fa, la, 0);
3960         bf_set(lpfc_mbx_read_top_mm, la, 0);
3961 
3962         /* Invoke the lpfc_handle_latt mailbox command callback function */
3963         lpfc_mbx_cmpl_read_topology(phba, pmb);
3964 
3965         return;
3966 
3967 out_free_dmabuf:
3968         kfree(mp);
3969 out_free_pmb:
3970         mempool_free(pmb, phba->mbox_mem_pool);
3971 }
3972 
3973 /**
3974  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3975  * @phba: pointer to lpfc hba data structure.
3976  * @acqe_fc: pointer to the async fc completion queue entry.
3977  *
3978  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3979  * that the event was received and then issue a read_topology mailbox command so
3980  * that the rest of the driver will treat it the same as SLI3.
3981  **/
3982 static void
3983 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3984 {
3985         struct lpfc_dmabuf *mp;
3986         LPFC_MBOXQ_t *pmb;
3987         int rc;
3988 
3989         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3990             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3991                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3992                                 "2895 Non FC link Event detected.(%d)\n",
3993                                 bf_get(lpfc_trailer_type, acqe_fc));
3994                 return;
3995         }
3996         /* Keep the link status for extra SLI4 state machine reference */
3997         phba->sli4_hba.link_state.speed =
3998                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
3999                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4000         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4001         phba->sli4_hba.link_state.topology =
4002                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4003         phba->sli4_hba.link_state.status =
4004                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4005         phba->sli4_hba.link_state.type =
4006                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4007         phba->sli4_hba.link_state.number =
4008                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4009         phba->sli4_hba.link_state.fault =
4010                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4011         phba->sli4_hba.link_state.logical_speed =
4012                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4013         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4014                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4015                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4016                         "%dMbps Fault:%d\n",
4017                         phba->sli4_hba.link_state.speed,
4018                         phba->sli4_hba.link_state.topology,
4019                         phba->sli4_hba.link_state.status,
4020                         phba->sli4_hba.link_state.type,
4021                         phba->sli4_hba.link_state.number,
4022                         phba->sli4_hba.link_state.logical_speed,
4023                         phba->sli4_hba.link_state.fault);
4024         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4025         if (!pmb) {
4026                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4027                                 "2897 The mboxq allocation failed\n");
4028                 return;
4029         }
4030         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4031         if (!mp) {
4032                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4033                                 "2898 The lpfc_dmabuf allocation failed\n");
4034                 goto out_free_pmb;
4035         }
4036         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4037         if (!mp->virt) {
4038                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4039                                 "2899 The mbuf allocation failed\n");
4040                 goto out_free_dmabuf;
4041         }
4042 
4043         /* Cleanup any outstanding ELS commands */
4044         lpfc_els_flush_all_cmd(phba);
4045 
4046         /* Block ELS IOCBs until we have done process link event */
4047         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4048 
4049         /* Update link event statistics */
4050         phba->sli.slistat.link_event++;
4051 
4052         /* Create lpfc_handle_latt mailbox command from link ACQE */
4053         lpfc_read_topology(phba, pmb, mp);
4054         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4055         pmb->vport = phba->pport;
4056 
4057         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4058         if (rc == MBX_NOT_FINISHED)
4059                 goto out_free_dmabuf;
4060         return;
4061 
4062 out_free_dmabuf:
4063         kfree(mp);
4064 out_free_pmb:
4065         mempool_free(pmb, phba->mbox_mem_pool);
4066 }
4067 
4068 /**
4069  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4070  * @phba: pointer to lpfc hba data structure.
4071  * @acqe_fc: pointer to the async SLI completion queue entry.
4072  *
4073  * This routine is to handle the SLI4 asynchronous SLI events.
4074  **/
4075 static void
4076 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4077 {
4078         char port_name;
4079         char message[128];
4080         uint8_t status;
4081         uint8_t evt_type;
4082         uint8_t operational = 0;
4083         struct temp_event temp_event_data;
4084         struct lpfc_acqe_misconfigured_event *misconfigured;
4085         struct Scsi_Host  *shost;
4086 
4087         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4088 
4089         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4090                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4091                         "x%08x SLI Event Type:%d\n",
4092                         acqe_sli->event_data1, acqe_sli->event_data2,
4093                         evt_type);
4094 
4095         port_name = phba->Port[0];
4096         if (port_name == 0x00)
4097                 port_name = '?'; /* get port name is empty */
4098 
4099         switch (evt_type) {
4100         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4101                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4102                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4103                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4104 
4105                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4106                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4107                                 acqe_sli->event_data1, port_name);
4108 
4109                 shost = lpfc_shost_from_vport(phba->pport);
4110                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4111                                           sizeof(temp_event_data),
4112                                           (char *)&temp_event_data,
4113                                           SCSI_NL_VID_TYPE_PCI
4114                                           | PCI_VENDOR_ID_EMULEX);
4115                 break;
4116         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4117                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4118                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4119                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4120 
4121                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4122                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4123                                 acqe_sli->event_data1, port_name);
4124 
4125                 shost = lpfc_shost_from_vport(phba->pport);
4126                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4127                                           sizeof(temp_event_data),
4128                                           (char *)&temp_event_data,
4129                                           SCSI_NL_VID_TYPE_PCI
4130                                           | PCI_VENDOR_ID_EMULEX);
4131                 break;
4132         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4133                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4134                                         &acqe_sli->event_data1;
4135 
4136                 /* fetch the status for this port */
4137                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4138                 case LPFC_LINK_NUMBER_0:
4139                         status = bf_get(lpfc_sli_misconfigured_port0_state,
4140                                         &misconfigured->theEvent);
4141                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
4142                                         &misconfigured->theEvent);
4143                         break;
4144                 case LPFC_LINK_NUMBER_1:
4145                         status = bf_get(lpfc_sli_misconfigured_port1_state,
4146                                         &misconfigured->theEvent);
4147                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
4148                                         &misconfigured->theEvent);
4149                         break;
4150                 case LPFC_LINK_NUMBER_2:
4151                         status = bf_get(lpfc_sli_misconfigured_port2_state,
4152                                         &misconfigured->theEvent);
4153                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
4154                                         &misconfigured->theEvent);
4155                         break;
4156                 case LPFC_LINK_NUMBER_3:
4157                         status = bf_get(lpfc_sli_misconfigured_port3_state,
4158                                         &misconfigured->theEvent);
4159                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
4160                                         &misconfigured->theEvent);
4161                         break;
4162                 default:
4163                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4164                                         "3296 "
4165                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
4166                                         "event: Invalid link %d",
4167                                         phba->sli4_hba.lnk_info.lnk_no);
4168                         return;
4169                 }
4170 
4171                 /* Skip if optic state unchanged */
4172                 if (phba->sli4_hba.lnk_info.optic_state == status)
4173                         return;
4174 
4175                 switch (status) {
4176                 case LPFC_SLI_EVENT_STATUS_VALID:
4177                         sprintf(message, "Physical Link is functional");
4178                         break;
4179                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4180                         sprintf(message, "Optics faulted/incorrectly "
4181                                 "installed/not installed - Reseat optics, "
4182                                 "if issue not resolved, replace.");
4183                         break;
4184                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4185                         sprintf(message,
4186                                 "Optics of two types installed - Remove one "
4187                                 "optic or install matching pair of optics.");
4188                         break;
4189                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4190                         sprintf(message, "Incompatible optics - Replace with "
4191                                 "compatible optics for card to function.");
4192                         break;
4193                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
4194                         sprintf(message, "Unqualified optics - Replace with "
4195                                 "Avago optics for Warranty and Technical "
4196                                 "Support - Link is%s operational",
4197                                 (operational) ? "" : " not");
4198                         break;
4199                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
4200                         sprintf(message, "Uncertified optics - Replace with "
4201                                 "Avago-certified optics to enable link "
4202                                 "operation - Link is%s operational",
4203                                 (operational) ? "" : " not");
4204                         break;
4205                 default:
4206                         /* firmware is reporting a status we don't know about */
4207                         sprintf(message, "Unknown event status x%02x", status);
4208                         break;
4209                 }
4210                 phba->sli4_hba.lnk_info.optic_state = status;
4211                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4212                                 "3176 Port Name %c %s\n", port_name, message);
4213                 break;
4214         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4215                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4216                                 "3192 Remote DPort Test Initiated - "
4217                                 "Event Data1:x%08x Event Data2: x%08x\n",
4218                                 acqe_sli->event_data1, acqe_sli->event_data2);
4219                 break;
4220         default:
4221                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4222                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4223                                 "x%08x SLI Event Type:%d\n",
4224                                 acqe_sli->event_data1, acqe_sli->event_data2,
4225                                 evt_type);
4226                 break;
4227         }
4228 }
4229 
4230 /**
4231  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4232  * @vport: pointer to vport data structure.
4233  *
4234  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4235  * response to a CVL event.
4236  *
4237  * Return the pointer to the ndlp with the vport if successful, otherwise
4238  * return NULL.
4239  **/
4240 static struct lpfc_nodelist *
4241 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4242 {
4243         struct lpfc_nodelist *ndlp;
4244         struct Scsi_Host *shost;
4245         struct lpfc_hba *phba;
4246 
4247         if (!vport)
4248                 return NULL;
4249         phba = vport->phba;
4250         if (!phba)
4251                 return NULL;
4252         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4253         if (!ndlp) {
4254                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4255                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4256                 if (!ndlp)
4257                         return 0;
4258                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4259                 /* Set the node type */
4260                 ndlp->nlp_type |= NLP_FABRIC;
4261                 /* Put ndlp onto node list */
4262                 lpfc_enqueue_node(vport, ndlp);
4263         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4264                 /* re-setup ndlp without removing from node list */
4265                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4266                 if (!ndlp)
4267                         return 0;
4268         }
4269         if ((phba->pport->port_state < LPFC_FLOGI) &&
4270                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4271                 return NULL;
4272         /* If virtual link is not yet instantiated ignore CVL */
4273         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4274                 && (vport->port_state != LPFC_VPORT_FAILED))
4275                 return NULL;
4276         shost = lpfc_shost_from_vport(vport);
4277         if (!shost)
4278                 return NULL;
4279         lpfc_linkdown_port(vport);
4280         lpfc_cleanup_pending_mbox(vport);
4281         spin_lock_irq(shost->host_lock);
4282         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4283         spin_unlock_irq(shost->host_lock);
4284 
4285         return ndlp;
4286 }
4287 
4288 /**
4289  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4290  * @vport: pointer to lpfc hba data structure.
4291  *
4292  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4293  * response to a FCF dead event.
4294  **/
4295 static void
4296 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4297 {
4298         struct lpfc_vport **vports;
4299         int i;
4300 
4301         vports = lpfc_create_vport_work_array(phba);
4302         if (vports)
4303                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4304                         lpfc_sli4_perform_vport_cvl(vports[i]);
4305         lpfc_destroy_vport_work_array(phba, vports);
4306 }
4307 
4308 /**
4309  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4310  * @phba: pointer to lpfc hba data structure.
4311  * @acqe_link: pointer to the async fcoe completion queue entry.
4312  *
4313  * This routine is to handle the SLI4 asynchronous fcoe event.
4314  **/
4315 static void
4316 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4317                         struct lpfc_acqe_fip *acqe_fip)
4318 {
4319         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4320         int rc;
4321         struct lpfc_vport *vport;
4322         struct lpfc_nodelist *ndlp;
4323         struct Scsi_Host  *shost;
4324         int active_vlink_present;
4325         struct lpfc_vport **vports;
4326         int i;
4327 
4328         phba->fc_eventTag = acqe_fip->event_tag;
4329         phba->fcoe_eventtag = acqe_fip->event_tag;
4330         switch (event_type) {
4331         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4332         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4333                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4334                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4335                                         LOG_DISCOVERY,
4336                                         "2546 New FCF event, evt_tag:x%x, "
4337                                         "index:x%x\n",
4338                                         acqe_fip->event_tag,
4339                                         acqe_fip->index);
4340                 else
4341                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4342                                         LOG_DISCOVERY,
4343                                         "2788 FCF param modified event, "
4344                                         "evt_tag:x%x, index:x%x\n",
4345                                         acqe_fip->event_tag,
4346                                         acqe_fip->index);
4347                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4348                         /*
4349                          * During period of FCF discovery, read the FCF
4350                          * table record indexed by the event to update
4351                          * FCF roundrobin failover eligible FCF bmask.
4352                          */
4353                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4354                                         LOG_DISCOVERY,
4355                                         "2779 Read FCF (x%x) for updating "
4356                                         "roundrobin FCF failover bmask\n",
4357                                         acqe_fip->index);
4358                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4359                 }
4360 
4361                 /* If the FCF discovery is in progress, do nothing. */
4362                 spin_lock_irq(&phba->hbalock);
4363                 if (phba->hba_flag & FCF_TS_INPROG) {
4364                         spin_unlock_irq(&phba->hbalock);
4365                         break;
4366                 }
4367                 /* If fast FCF failover rescan event is pending, do nothing */
4368                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4369                         spin_unlock_irq(&phba->hbalock);
4370                         break;
4371                 }
4372 
4373                 /* If the FCF has been in discovered state, do nothing. */
4374                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4375                         spin_unlock_irq(&phba->hbalock);
4376                         break;
4377                 }
4378                 spin_unlock_irq(&phba->hbalock);
4379 
4380                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4381                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4382                                 "2770 Start FCF table scan per async FCF "
4383                                 "event, evt_tag:x%x, index:x%x\n",
4384                                 acqe_fip->event_tag, acqe_fip->index);
4385                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4386                                                      LPFC_FCOE_FCF_GET_FIRST);
4387                 if (rc)
4388                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4389                                         "2547 Issue FCF scan read FCF mailbox "
4390                                         "command failed (x%x)\n", rc);
4391                 break;
4392 
4393         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4394                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4395                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4396                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4397                         acqe_fip->event_tag);
4398                 break;
4399 
4400         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4401                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4402                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4403                         "2549 FCF (x%x) disconnected from network, "
4404                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4405                 /*
4406                  * If we are in the middle of FCF failover process, clear
4407                  * the corresponding FCF bit in the roundrobin bitmap.
4408                  */
4409                 spin_lock_irq(&phba->hbalock);
4410                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4411                         spin_unlock_irq(&phba->hbalock);
4412                         /* Update FLOGI FCF failover eligible FCF bmask */
4413                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4414                         break;
4415                 }
4416                 spin_unlock_irq(&phba->hbalock);
4417 
4418                 /* If the event is not for currently used fcf do nothing */
4419                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4420                         break;
4421 
4422                 /*
4423                  * Otherwise, request the port to rediscover the entire FCF
4424                  * table for a fast recovery from case that the current FCF
4425                  * is no longer valid as we are not in the middle of FCF
4426                  * failover process already.
4427                  */
4428                 spin_lock_irq(&phba->hbalock);
4429                 /* Mark the fast failover process in progress */
4430                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4431                 spin_unlock_irq(&phba->hbalock);
4432 
4433                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4434                                 "2771 Start FCF fast failover process due to "
4435                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4436                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4437                 rc = lpfc_sli4_redisc_fcf_table(phba);
4438                 if (rc) {
4439                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4440                                         LOG_DISCOVERY,
4441                                         "2772 Issue FCF rediscover mabilbox "
4442                                         "command failed, fail through to FCF "
4443                                         "dead event\n");
4444                         spin_lock_irq(&phba->hbalock);
4445                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4446                         spin_unlock_irq(&phba->hbalock);
4447                         /*
4448                          * Last resort will fail over by treating this
4449                          * as a link down to FCF registration.
4450                          */
4451                         lpfc_sli4_fcf_dead_failthrough(phba);
4452                 } else {
4453                         /* Reset FCF roundrobin bmask for new discovery */
4454                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4455                         /*
4456                          * Handling fast FCF failover to a DEAD FCF event is
4457                          * considered equalivant to receiving CVL to all vports.
4458                          */
4459                         lpfc_sli4_perform_all_vport_cvl(phba);
4460                 }
4461                 break;
4462         case LPFC_FIP_EVENT_TYPE_CVL:
4463                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4464                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4465                         "2718 Clear Virtual Link Received for VPI 0x%x"
4466                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4467 
4468                 vport = lpfc_find_vport_by_vpid(phba,
4469                                                 acqe_fip->index);
4470                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4471                 if (!ndlp)
4472                         break;
4473                 active_vlink_present = 0;
4474 
4475                 vports = lpfc_create_vport_work_array(phba);
4476                 if (vports) {
4477                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4478                                         i++) {
4479                                 if ((!(vports[i]->fc_flag &
4480                                         FC_VPORT_CVL_RCVD)) &&
4481                                         (vports[i]->port_state > LPFC_FDISC)) {
4482                                         active_vlink_present = 1;
4483                                         break;
4484                                 }
4485                         }
4486                         lpfc_destroy_vport_work_array(phba, vports);
4487                 }
4488 
4489                 /*
4490                  * Don't re-instantiate if vport is marked for deletion.
4491                  * If we are here first then vport_delete is going to wait
4492                  * for discovery to complete.
4493                  */
4494                 if (!(vport->load_flag & FC_UNLOADING) &&
4495                                         active_vlink_present) {
4496                         /*
4497                          * If there are other active VLinks present,
4498                          * re-instantiate the Vlink using FDISC.
4499                          */
4500                         mod_timer(&ndlp->nlp_delayfunc,
4501                                   jiffies + msecs_to_jiffies(1000));
4502                         shost = lpfc_shost_from_vport(vport);
4503                         spin_lock_irq(shost->host_lock);
4504                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4505                         spin_unlock_irq(shost->host_lock);
4506                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4507                         vport->port_state = LPFC_FDISC;
4508                 } else {
4509                         /*
4510                          * Otherwise, we request port to rediscover
4511                          * the entire FCF table for a fast recovery
4512                          * from possible case that the current FCF
4513                          * is no longer valid if we are not already
4514                          * in the FCF failover process.
4515                          */
4516                         spin_lock_irq(&phba->hbalock);
4517                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4518                                 spin_unlock_irq(&phba->hbalock);
4519                                 break;
4520                         }
4521                         /* Mark the fast failover process in progress */
4522                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4523                         spin_unlock_irq(&phba->hbalock);
4524                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4525                                         LOG_DISCOVERY,
4526                                         "2773 Start FCF failover per CVL, "
4527                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4528                         rc = lpfc_sli4_redisc_fcf_table(phba);
4529                         if (rc) {
4530                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4531                                                 LOG_DISCOVERY,
4532                                                 "2774 Issue FCF rediscover "
4533                                                 "mabilbox command failed, "
4534                                                 "through to CVL event\n");
4535                                 spin_lock_irq(&phba->hbalock);
4536                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4537                                 spin_unlock_irq(&phba->hbalock);
4538                                 /*
4539                                  * Last resort will be re-try on the
4540                                  * the current registered FCF entry.
4541                                  */
4542                                 lpfc_retry_pport_discovery(phba);
4543                         } else
4544                                 /*
4545                                  * Reset FCF roundrobin bmask for new
4546                                  * discovery.
4547                                  */
4548                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4549                 }
4550                 break;
4551         default:
4552                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4553                         "0288 Unknown FCoE event type 0x%x event tag "
4554                         "0x%x\n", event_type, acqe_fip->event_tag);
4555                 break;
4556         }
4557 }
4558 
4559 /**
4560  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4561  * @phba: pointer to lpfc hba data structure.
4562  * @acqe_link: pointer to the async dcbx completion queue entry.
4563  *
4564  * This routine is to handle the SLI4 asynchronous dcbx event.
4565  **/
4566 static void
4567 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4568                          struct lpfc_acqe_dcbx *acqe_dcbx)
4569 {
4570         phba->fc_eventTag = acqe_dcbx->event_tag;
4571         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4572                         "0290 The SLI4 DCBX asynchronous event is not "
4573                         "handled yet\n");
4574 }
4575 
4576 /**
4577  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4578  * @phba: pointer to lpfc hba data structure.
4579  * @acqe_link: pointer to the async grp5 completion queue entry.
4580  *
4581  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4582  * is an asynchronous notified of a logical link speed change.  The Port
4583  * reports the logical link speed in units of 10Mbps.
4584  **/
4585 static void
4586 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4587                          struct lpfc_acqe_grp5 *acqe_grp5)
4588 {
4589         uint16_t prev_ll_spd;
4590 
4591         phba->fc_eventTag = acqe_grp5->event_tag;
4592         phba->fcoe_eventtag = acqe_grp5->event_tag;
4593         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4594         phba->sli4_hba.link_state.logical_speed =
4595                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4596         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4597                         "2789 GRP5 Async Event: Updating logical link speed "
4598                         "from %dMbps to %dMbps\n", prev_ll_spd,
4599                         phba->sli4_hba.link_state.logical_speed);
4600 }
4601 
4602 /**
4603  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4604  * @phba: pointer to lpfc hba data structure.
4605  *
4606  * This routine is invoked by the worker thread to process all the pending
4607  * SLI4 asynchronous events.
4608  **/
4609 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4610 {
4611         struct lpfc_cq_event *cq_event;
4612 
4613         /* First, declare the async event has been handled */
4614         spin_lock_irq(&phba->hbalock);
4615         phba->hba_flag &= ~ASYNC_EVENT;
4616         spin_unlock_irq(&phba->hbalock);
4617         /* Now, handle all the async events */
4618         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4619                 /* Get the first event from the head of the event queue */
4620                 spin_lock_irq(&phba->hbalock);
4621                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4622                                  cq_event, struct lpfc_cq_event, list);
4623                 spin_unlock_irq(&phba->hbalock);
4624                 /* Process the asynchronous event */
4625                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4626                 case LPFC_TRAILER_CODE_LINK:
4627                         lpfc_sli4_async_link_evt(phba,
4628                                                  &cq_event->cqe.acqe_link);
4629                         break;
4630                 case LPFC_TRAILER_CODE_FCOE:
4631                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4632                         break;
4633                 case LPFC_TRAILER_CODE_DCBX:
4634                         lpfc_sli4_async_dcbx_evt(phba,
4635                                                  &cq_event->cqe.acqe_dcbx);
4636                         break;
4637                 case LPFC_TRAILER_CODE_GRP5:
4638                         lpfc_sli4_async_grp5_evt(phba,
4639                                                  &cq_event->cqe.acqe_grp5);
4640                         break;
4641                 case LPFC_TRAILER_CODE_FC:
4642                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4643                         break;
4644                 case LPFC_TRAILER_CODE_SLI:
4645                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4646                         break;
4647                 default:
4648                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4649                                         "1804 Invalid asynchrous event code: "
4650                                         "x%x\n", bf_get(lpfc_trailer_code,
4651                                         &cq_event->cqe.mcqe_cmpl));
4652                         break;
4653                 }
4654                 /* Free the completion event processed to the free pool */
4655                 lpfc_sli4_cq_event_release(phba, cq_event);
4656         }
4657 }
4658 
4659 /**
4660  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4661  * @phba: pointer to lpfc hba data structure.
4662  *
4663  * This routine is invoked by the worker thread to process FCF table
4664  * rediscovery pending completion event.
4665  **/
4666 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4667 {
4668         int rc;
4669 
4670         spin_lock_irq(&phba->hbalock);
4671         /* Clear FCF rediscovery timeout event */
4672         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4673         /* Clear driver fast failover FCF record flag */
4674         phba->fcf.failover_rec.flag = 0;
4675         /* Set state for FCF fast failover */
4676         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4677         spin_unlock_irq(&phba->hbalock);
4678 
4679         /* Scan FCF table from the first entry to re-discover SAN */
4680         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4681                         "2777 Start post-quiescent FCF table scan\n");
4682         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4683         if (rc)
4684                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4685                                 "2747 Issue FCF scan read FCF mailbox "
4686                                 "command failed 0x%x\n", rc);
4687 }
4688 
4689 /**
4690  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4691  * @phba: pointer to lpfc hba data structure.
4692  * @dev_grp: The HBA PCI-Device group number.
4693  *
4694  * This routine is invoked to set up the per HBA PCI-Device group function
4695  * API jump table entries.
4696  *
4697  * Return: 0 if success, otherwise -ENODEV
4698  **/
4699 int
4700 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4701 {
4702         int rc;
4703 
4704         /* Set up lpfc PCI-device group */
4705         phba->pci_dev_grp = dev_grp;
4706 
4707         /* The LPFC_PCI_DEV_OC uses SLI4 */
4708         if (dev_grp == LPFC_PCI_DEV_OC)
4709                 phba->sli_rev = LPFC_SLI_REV4;
4710 
4711         /* Set up device INIT API function jump table */
4712         rc = lpfc_init_api_table_setup(phba, dev_grp);
4713         if (rc)
4714                 return -ENODEV;
4715         /* Set up SCSI API function jump table */
4716         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4717         if (rc)
4718                 return -ENODEV;
4719         /* Set up SLI API function jump table */
4720         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4721         if (rc)
4722                 return -ENODEV;
4723         /* Set up MBOX API function jump table */
4724         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4725         if (rc)
4726                 return -ENODEV;
4727 
4728         return 0;
4729 }
4730 
4731 /**
4732  * lpfc_log_intr_mode - Log the active interrupt mode
4733  * @phba: pointer to lpfc hba data structure.
4734  * @intr_mode: active interrupt mode adopted.
4735  *
4736  * This routine it invoked to log the currently used active interrupt mode
4737  * to the device.
4738  **/
4739 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4740 {
4741         switch (intr_mode) {
4742         case 0:
4743                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4744                                 "0470 Enable INTx interrupt mode.\n");
4745                 break;
4746         case 1:
4747                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4748                                 "0481 Enabled MSI interrupt mode.\n");
4749                 break;
4750         case 2:
4751                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4752                                 "0480 Enabled MSI-X interrupt mode.\n");
4753                 break;
4754         default:
4755                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4756                                 "0482 Illegal interrupt mode.\n");
4757                 break;
4758         }
4759         return;
4760 }
4761 
4762 /**
4763  * lpfc_enable_pci_dev - Enable a generic PCI device.
4764  * @phba: pointer to lpfc hba data structure.
4765  *
4766  * This routine is invoked to enable the PCI device that is common to all
4767  * PCI devices.
4768  *
4769  * Return codes
4770  *      0 - successful
4771  *      other values - error
4772  **/
4773 static int
4774 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4775 {
4776         struct pci_dev *pdev;
4777         int bars = 0;
4778 
4779         /* Obtain PCI device reference */
4780         if (!phba->pcidev)
4781                 goto out_error;
4782         else
4783                 pdev = phba->pcidev;
4784         /* Select PCI BARs */
4785         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4786         /* Enable PCI device */
4787         if (pci_enable_device_mem(pdev))
4788                 goto out_error;
4789         /* Request PCI resource for the device */
4790         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4791                 goto out_disable_device;
4792         /* Set up device as PCI master and save state for EEH */
4793         pci_set_master(pdev);
4794         pci_try_set_mwi(pdev);
4795         pci_save_state(pdev);
4796 
4797         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4798         if (pci_is_pcie(pdev))
4799                 pdev->needs_freset = 1;
4800 
4801         return 0;
4802 
4803 out_disable_device:
4804         pci_disable_device(pdev);
4805 out_error:
4806         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4807                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4808         return -ENODEV;
4809 }
4810 
4811 /**
4812  * lpfc_disable_pci_dev - Disable a generic PCI device.
4813  * @phba: pointer to lpfc hba data structure.
4814  *
4815  * This routine is invoked to disable the PCI device that is common to all
4816  * PCI devices.
4817  **/
4818 static void
4819 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4820 {
4821         struct pci_dev *pdev;
4822         int bars;
4823 
4824         /* Obtain PCI device reference */
4825         if (!phba->pcidev)
4826                 return;
4827         else
4828                 pdev = phba->pcidev;
4829         /* Select PCI BARs */
4830         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4831         /* Release PCI resource and disable PCI device */
4832         pci_release_selected_regions(pdev, bars);
4833         pci_disable_device(pdev);
4834 
4835         return;
4836 }
4837 
4838 /**
4839  * lpfc_reset_hba - Reset a hba
4840  * @phba: pointer to lpfc hba data structure.
4841  *
4842  * This routine is invoked to reset a hba device. It brings the HBA
4843  * offline, performs a board restart, and then brings the board back
4844  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4845  * on outstanding mailbox commands.
4846  **/
4847 void
4848 lpfc_reset_hba(struct lpfc_hba *phba)
4849 {
4850         /* If resets are disabled then set error state and return. */
4851         if (!phba->cfg_enable_hba_reset) {
4852                 phba->link_state = LPFC_HBA_ERROR;
4853                 return;
4854         }
4855         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4856                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4857         else
4858                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4859         lpfc_offline(phba);
4860         lpfc_sli_brdrestart(phba);
4861         lpfc_online(phba);
4862         lpfc_unblock_mgmt_io(phba);
4863 }
4864 
4865 /**
4866  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4867  * @phba: pointer to lpfc hba data structure.
4868  *
4869  * This function enables the PCI SR-IOV virtual functions to a physical
4870  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4871  * enable the number of virtual functions to the physical function. As
4872  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4873  * API call does not considered as an error condition for most of the device.
4874  **/
4875 uint16_t
4876 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4877 {
4878         struct pci_dev *pdev = phba->pcidev;
4879         uint16_t nr_virtfn;
4880         int pos;
4881 
4882         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4883         if (pos == 0)
4884                 return 0;
4885 
4886         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4887         return nr_virtfn;
4888 }
4889 
4890 /**
4891  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4892  * @phba: pointer to lpfc hba data structure.
4893  * @nr_vfn: number of virtual functions to be enabled.
4894  *
4895  * This function enables the PCI SR-IOV virtual functions to a physical
4896  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4897  * enable the number of virtual functions to the physical function. As
4898  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4899  * API call does not considered as an error condition for most of the device.
4900  **/
4901 int
4902 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4903 {
4904         struct pci_dev *pdev = phba->pcidev;
4905         uint16_t max_nr_vfn;
4906         int rc;
4907 
4908         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4909         if (nr_vfn > max_nr_vfn) {
4910                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4911                                 "3057 Requested vfs (%d) greater than "
4912                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4913                 return -EINVAL;
4914         }
4915 
4916         rc = pci_enable_sriov(pdev, nr_vfn);
4917         if (rc) {
4918                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4919                                 "2806 Failed to enable sriov on this device "
4920                                 "with vfn number nr_vf:%d, rc:%d\n",
4921                                 nr_vfn, rc);
4922         } else
4923                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4924                                 "2807 Successful enable sriov on this device "
4925                                 "with vfn number nr_vf:%d\n", nr_vfn);
4926         return rc;
4927 }
4928 
4929 /**
4930  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4931  * @phba: pointer to lpfc hba data structure.
4932  *
4933  * This routine is invoked to set up the driver internal resources specific to
4934  * support the SLI-3 HBA device it attached to.
4935  *
4936  * Return codes
4937  *      0 - successful
4938  *      other values - error
4939  **/
4940 static int
4941 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4942 {
4943         struct lpfc_sli *psli;
4944         int rc;
4945 
4946         /*
4947          * Initialize timers used by driver
4948          */
4949 
4950         /* Heartbeat timer */
4951         init_timer(&phba->hb_tmofunc);
4952         phba->hb_tmofunc.function = lpfc_hb_timeout;
4953         phba->hb_tmofunc.data = (unsigned long)phba;
4954 
4955         psli = &phba->sli;
4956         /* MBOX heartbeat timer */
4957         init_timer(&psli->mbox_tmo);
4958         psli->mbox_tmo.function = lpfc_mbox_timeout;
4959         psli->mbox_tmo.data = (unsigned long) phba;
4960         /* FCP polling mode timer */
4961         init_timer(&phba->fcp_poll_timer);
4962         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4963         phba->fcp_poll_timer.data = (unsigned long) phba;
4964         /* Fabric block timer */
4965         init_timer(&phba->fabric_block_timer);
4966         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4967         phba->fabric_block_timer.data = (unsigned long) phba;
4968         /* EA polling mode timer */
4969         init_timer(&phba->eratt_poll);
4970         phba->eratt_poll.function = lpfc_poll_eratt;
4971         phba->eratt_poll.data = (unsigned long) phba;
4972 
4973         /* Host attention work mask setup */
4974         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4975         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4976 
4977         /* Get all the module params for configuring this host */
4978         lpfc_get_cfgparam(phba);
4979         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4980                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4981                 /* check for menlo minimum sg count */
4982                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4983                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4984         }
4985 
4986         if (!phba->sli.ring)
4987                 phba->sli.ring = kzalloc(LPFC_SLI3_MAX_RING *
4988                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4989         if (!phba->sli.ring)
4990                 return -ENOMEM;
4991 
4992         /*
4993          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4994          * used to create the sg_dma_buf_pool must be dynamically calculated.
4995          */
4996 
4997         /* Initialize the host templates the configured values. */
4998         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4999         lpfc_template_s3.sg_tablesize = phba->cfg_sg_seg_cnt;
5000 
5001         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5002         if (phba->cfg_enable_bg) {
5003                 /*
5004                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5005                  * the FCP rsp, and a BDE for each. Sice we have no control
5006                  * over how many protection data segments the SCSI Layer
5007                  * will hand us (ie: there could be one for every block
5008                  * in the IO), we just allocate enough BDEs to accomidate
5009                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5010                  * minimize the risk of running out.
5011                  */
5012                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5013                         sizeof(struct fcp_rsp) +
5014                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5015 
5016                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5017                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5018 
5019                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5020                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5021         } else {
5022                 /*
5023                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5024                  * the FCP rsp, a BDE for each, and a BDE for up to
5025                  * cfg_sg_seg_cnt data segments.
5026                  */
5027                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5028                         sizeof(struct fcp_rsp) +
5029                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5030 
5031                 /* Total BDEs in BPL for scsi_sg_list */
5032                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5033         }
5034 
5035         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5036                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5037                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5038                         phba->cfg_total_seg_cnt);
5039 
5040         phba->max_vpi = LPFC_MAX_VPI;
5041         /* This will be set to correct value after config_port mbox */
5042         phba->max_vports = 0;
5043 
5044         /*
5045          * Initialize the SLI Layer to run with lpfc HBAs.
5046          */
5047         lpfc_sli_setup(phba);
5048         lpfc_sli_queue_setup(phba);
5049 
5050         /* Allocate device driver memory */
5051         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5052                 return -ENOMEM;
5053 
5054         /*
5055          * Enable sr-iov virtual functions if supported and configured
5056          * through the module parameter.
5057          */
5058         if (phba->cfg_sriov_nr_virtfn > 0) {
5059                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5060                                                  phba->cfg_sriov_nr_virtfn);
5061                 if (rc) {
5062                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5063                                         "2808 Requested number of SR-IOV "
5064                                         "virtual functions (%d) is not "
5065                                         "supported\n",
5066                                         phba->cfg_sriov_nr_virtfn);
5067                         phba->cfg_sriov_nr_virtfn = 0;
5068                 }
5069         }
5070 
5071         return 0;
5072 }
5073 
5074 /**
5075  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5076  * @phba: pointer to lpfc hba data structure.
5077  *
5078  * This routine is invoked to unset the driver internal resources set up
5079  * specific for supporting the SLI-3 HBA device it attached to.
5080  **/
5081 static void
5082 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5083 {
5084         /* Free device driver memory allocated */
5085         lpfc_mem_free_all(phba);
5086 
5087         return;
5088 }
5089 
5090 /**
5091  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5092  * @phba: pointer to lpfc hba data structure.
5093  *
5094  * This routine is invoked to set up the driver internal resources specific to
5095  * support the SLI-4 HBA device it attached to.
5096  *
5097  * Return codes
5098  *      0 - successful
5099  *      other values - error
5100  **/
5101 static int
5102 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5103 {
5104         struct lpfc_vector_map_info *cpup;
5105         struct lpfc_sli *psli;
5106         LPFC_MBOXQ_t *mboxq;
5107         int rc, i, hbq_count, max_buf_size;
5108         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5109         struct lpfc_mqe *mqe;
5110         int longs;
5111         int fof_vectors = 0;
5112 
5113         /* Get all the module params for configuring this host */
5114         lpfc_get_cfgparam(phba);
5115 
5116         /* Before proceed, wait for POST done and device ready */
5117         rc = lpfc_sli4_post_status_check(phba);
5118         if (rc)
5119                 return -ENODEV;
5120 
5121         /*
5122          * Initialize timers used by driver
5123          */
5124 
5125         /* Heartbeat timer */
5126         init_timer(&phba->hb_tmofunc);
5127         phba->hb_tmofunc.function = lpfc_hb_timeout;
5128         phba->hb_tmofunc.data = (unsigned long)phba;
5129         init_timer(&phba->rrq_tmr);
5130         phba->rrq_tmr.function = lpfc_rrq_timeout;
5131         phba->rrq_tmr.data = (unsigned long)phba;
5132 
5133         psli = &phba->sli;
5134         /* MBOX heartbeat timer */
5135         init_timer(&psli->mbox_tmo);
5136         psli->mbox_tmo.function = lpfc_mbox_timeout;
5137         psli->mbox_tmo.data = (unsigned long) phba;
5138         /* Fabric block timer */
5139         init_timer(&phba->fabric_block_timer);
5140         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5141         phba->fabric_block_timer.data = (unsigned long) phba;
5142         /* EA polling mode timer */
5143         init_timer(&phba->eratt_poll);
5144         phba->eratt_poll.function = lpfc_poll_eratt;
5145         phba->eratt_poll.data = (unsigned long) phba;
5146         /* FCF rediscover timer */
5147         init_timer(&phba->fcf.redisc_wait);
5148         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5149         phba->fcf.redisc_wait.data = (unsigned long)phba;
5150 
5151         /*
5152          * Control structure for handling external multi-buffer mailbox
5153          * command pass-through.
5154          */
5155         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5156                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5157         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5158 
5159         phba->max_vpi = LPFC_MAX_VPI;
5160 
5161         /* This will be set to correct value after the read_config mbox */
5162         phba->max_vports = 0;
5163 
5164         /* Program the default value of vlan_id and fc_map */
5165         phba->valid_vlan = 0;
5166         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5167         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5168         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5169 
5170         /*
5171          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5172          * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5173          */
5174         if (!phba->sli.ring)
5175                 phba->sli.ring = kzalloc(
5176                         (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5177                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5178         if (!phba->sli.ring)
5179                 return -ENOMEM;
5180 
5181         /*
5182          * It doesn't matter what family our adapter is in, we are
5183          * limited to 2 Pages, 512 SGEs, for our SGL.
5184          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5185          */
5186         max_buf_size = (2 * SLI4_PAGE_SIZE);
5187         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5188                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5189 
5190         /*
5191          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5192          * used to create the sg_dma_buf_pool must be dynamically calculated.
5193          */
5194 
5195         if (phba->cfg_enable_bg) {
5196                 /*
5197                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5198                  * the FCP rsp, and a SGE for each. Sice we have no control
5199                  * over how many protection data segments the SCSI Layer
5200                  * will hand us (ie: there could be one for every block
5201                  * in the IO), we just allocate enough SGEs to accomidate
5202                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5203                  * minimize the risk of running out.
5204                  */
5205                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5206                         sizeof(struct fcp_rsp) + max_buf_size;
5207 
5208                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5209                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5210 
5211                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5212                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5213         } else {
5214                 /*
5215                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5216                  * the FCP rsp, a SGE for each, and a SGE for up to
5217                  * cfg_sg_seg_cnt data segments.
5218                  */
5219                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5220                         sizeof(struct fcp_rsp) +
5221                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5222 
5223                 /* Total SGEs for scsi_sg_list */
5224                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5225                 /*
5226                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5227                  * to post 1 page for the SGL.
5228                  */
5229         }
5230 
5231         /* Initialize the host templates with the updated values. */
5232         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5233         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5234 
5235         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5236                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5237         else
5238                 phba->cfg_sg_dma_buf_size =
5239                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5240 
5241         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5242                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5243                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5244                         phba->cfg_total_seg_cnt);
5245 
5246         /* Initialize buffer queue management fields */
5247         hbq_count = lpfc_sli_hbq_count();
5248         for (i = 0; i < hbq_count; ++i)
5249                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5250         INIT_LIST_HEAD(&phba->rb_pend_list);
5251         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5252         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5253 
5254         /*
5255          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5256          */
5257         /* Initialize the Abort scsi buffer list used by driver */
5258         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5259         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5260         /* This abort list used by worker thread */
5261         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5262 
5263         /*
5264          * Initialize driver internal slow-path work queues
5265          */
5266 
5267         /* Driver internel slow-path CQ Event pool */
5268         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5269         /* Response IOCB work queue list */
5270         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5271         /* Asynchronous event CQ Event work queue list */
5272         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5273         /* Fast-path XRI aborted CQ Event work queue list */
5274         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5275         /* Slow-path XRI aborted CQ Event work queue list */
5276         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5277         /* Receive queue CQ Event work queue list */
5278         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5279 
5280         /* Initialize extent block lists. */
5281         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5282         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5283         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5284         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5285 
5286         /* initialize optic_state to 0xFF */
5287         phba->sli4_hba.lnk_info.optic_state = 0xff;
5288 
5289         /* Initialize the driver internal SLI layer lists. */
5290         lpfc_sli_setup(phba);
5291         lpfc_sli_queue_setup(phba);
5292 
5293         /* Allocate device driver memory */
5294         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5295         if (rc)
5296                 return -ENOMEM;
5297 
5298         /* IF Type 2 ports get initialized now. */
5299         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5300             LPFC_SLI_INTF_IF_TYPE_2) {
5301                 rc = lpfc_pci_function_reset(phba);
5302                 if (unlikely(rc))
5303                         return -ENODEV;
5304                 phba->temp_sensor_support = 1;
5305         }
5306 
5307         /* Create the bootstrap mailbox command */
5308         rc = lpfc_create_bootstrap_mbox(phba);
5309         if (unlikely(rc))
5310                 goto out_free_mem;
5311 
5312         /* Set up the host's endian order with the device. */
5313         rc = lpfc_setup_endian_order(phba);
5314         if (unlikely(rc))
5315                 goto out_free_bsmbx;
5316 
5317         /* Set up the hba's configuration parameters. */
5318         rc = lpfc_sli4_read_config(phba);
5319         if (unlikely(rc))
5320                 goto out_free_bsmbx;
5321         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5322         if (unlikely(rc))
5323                 goto out_free_bsmbx;
5324 
5325         /* IF Type 0 ports get initialized now. */
5326         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5327             LPFC_SLI_INTF_IF_TYPE_0) {
5328                 rc = lpfc_pci_function_reset(phba);
5329                 if (unlikely(rc))
5330                         goto out_free_bsmbx;
5331         }
5332 
5333         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5334                                                        GFP_KERNEL);
5335         if (!mboxq) {
5336                 rc = -ENOMEM;
5337                 goto out_free_bsmbx;
5338         }
5339 
5340         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5341         lpfc_supported_pages(mboxq);
5342         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5343         if (!rc) {
5344                 mqe = &mboxq->u.mqe;
5345                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5346                        LPFC_MAX_SUPPORTED_PAGES);
5347                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5348                         switch (pn_page[i]) {
5349                         case LPFC_SLI4_PARAMETERS:
5350                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5351                                 break;
5352                         default:
5353                                 break;
5354                         }
5355                 }
5356                 /* Read the port's SLI4 Parameters capabilities if supported. */
5357                 if (phba->sli4_hba.pc_sli4_params.supported)
5358                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5359                 if (rc) {
5360                         mempool_free(mboxq, phba->mbox_mem_pool);
5361                         rc = -EIO;
5362                         goto out_free_bsmbx;
5363                 }
5364         }
5365         /*
5366          * Get sli4 parameters that override parameters from Port capabilities.
5367          * If this call fails, it isn't critical unless the SLI4 parameters come
5368          * back in conflict.
5369          */
5370         rc = lpfc_get_sli4_parameters(phba, mboxq);
5371         if (rc) {
5372                 if (phba->sli4_hba.extents_in_use &&
5373                     phba->sli4_hba.rpi_hdrs_in_use) {
5374                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5375                                 "2999 Unsupported SLI4 Parameters "
5376                                 "Extents and RPI headers enabled.\n");
5377                         goto out_free_bsmbx;
5378                 }
5379         }
5380         mempool_free(mboxq, phba->mbox_mem_pool);
5381 
5382         /* Verify OAS is supported */
5383         lpfc_sli4_oas_verify(phba);
5384         if (phba->cfg_fof)
5385                 fof_vectors = 1;
5386 
5387         /* Verify all the SLI4 queues */
5388         rc = lpfc_sli4_queue_verify(phba);
5389         if (rc)
5390                 goto out_free_bsmbx;
5391 
5392         /* Create driver internal CQE event pool */
5393         rc = lpfc_sli4_cq_event_pool_create(phba);
5394         if (rc)
5395                 goto out_free_bsmbx;
5396 
5397         /* Initialize sgl lists per host */
5398         lpfc_init_sgl_list(phba);
5399 
5400         /* Allocate and initialize active sgl array */
5401         rc = lpfc_init_active_sgl_array(phba);
5402         if (rc) {
5403                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5404                                 "1430 Failed to initialize sgl list.\n");
5405                 goto out_destroy_cq_event_pool;
5406         }
5407         rc = lpfc_sli4_init_rpi_hdrs(phba);
5408         if (rc) {
5409                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5410                                 "1432 Failed to initialize rpi headers.\n");
5411                 goto out_free_active_sgl;
5412         }
5413 
5414         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5415         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5416         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5417                                          GFP_KERNEL);
5418         if (!phba->fcf.fcf_rr_bmask) {
5419                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5420                                 "2759 Failed allocate memory for FCF round "
5421                                 "robin failover bmask\n");
5422                 rc = -ENOMEM;
5423                 goto out_remove_rpi_hdrs;
5424         }
5425 
5426         phba->sli4_hba.fcp_eq_hdl =
5427                         kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5428                             (fof_vectors + phba->cfg_fcp_io_channel)),
5429                             GFP_KERNEL);
5430         if (!phba->sli4_hba.fcp_eq_hdl) {
5431                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5432                                 "2572 Failed allocate memory for "
5433                                 "fast-path per-EQ handle array\n");
5434                 rc = -ENOMEM;
5435                 goto out_free_fcf_rr_bmask;
5436         }
5437 
5438         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5439                                   (fof_vectors +
5440                                    phba->cfg_fcp_io_channel)), GFP_KERNEL);
5441         if (!phba->sli4_hba.msix_entries) {
5442                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5443                                 "2573 Failed allocate memory for msi-x "
5444                                 "interrupt vector entries\n");
5445                 rc = -ENOMEM;
5446                 goto out_free_fcp_eq_hdl;
5447         }
5448 
5449         phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5450                                          phba->sli4_hba.num_present_cpu),
5451                                          GFP_KERNEL);
5452         if (!phba->sli4_hba.cpu_map) {
5453                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5454                                 "3327 Failed allocate memory for msi-x "
5455                                 "interrupt vector mapping\n");
5456                 rc = -ENOMEM;
5457                 goto out_free_msix;
5458         }
5459         if (lpfc_used_cpu == NULL) {
5460                 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5461                                          GFP_KERNEL);
5462                 if (!lpfc_used_cpu) {
5463                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5464                                         "3335 Failed allocate memory for msi-x "
5465                                         "interrupt vector mapping\n");
5466                         kfree(phba->sli4_hba.cpu_map);
5467                         rc = -ENOMEM;
5468                         goto out_free_msix;
5469                 }
5470                 for (i = 0; i < lpfc_present_cpu; i++)
5471                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5472         }
5473 
5474         /* Initialize io channels for round robin */
5475         cpup = phba->sli4_hba.cpu_map;
5476         rc = 0;
5477         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5478                 cpup->channel_id = rc;
5479                 rc++;
5480                 if (rc >= phba->cfg_fcp_io_channel)
5481                         rc = 0;
5482         }
5483 
5484         /*
5485          * Enable sr-iov virtual functions if supported and configured
5486          * through the module parameter.
5487          */
5488         if (phba->cfg_sriov_nr_virtfn > 0) {
5489                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5490                                                  phba->cfg_sriov_nr_virtfn);
5491                 if (rc) {
5492                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5493                                         "3020 Requested number of SR-IOV "
5494                                         "virtual functions (%d) is not "
5495                                         "supported\n",
5496                                         phba->cfg_sriov_nr_virtfn);
5497                         phba->cfg_sriov_nr_virtfn = 0;
5498                 }
5499         }
5500 
5501         return 0;
5502 
5503 out_free_msix:
5504         kfree(phba->sli4_hba.msix_entries);
5505 out_free_fcp_eq_hdl:
5506         kfree(phba->sli4_hba.fcp_eq_hdl);
5507 out_free_fcf_rr_bmask:
5508         kfree(phba->fcf.fcf_rr_bmask);
5509 out_remove_rpi_hdrs:
5510         lpfc_sli4_remove_rpi_hdrs(phba);
5511 out_free_active_sgl:
5512         lpfc_free_active_sgl(phba);
5513 out_destroy_cq_event_pool:
5514         lpfc_sli4_cq_event_pool_destroy(phba);
5515 out_free_bsmbx:
5516         lpfc_destroy_bootstrap_mbox(phba);
5517 out_free_mem:
5518         lpfc_mem_free(phba);
5519         return rc;
5520 }
5521 
5522 /**
5523  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5524  * @phba: pointer to lpfc hba data structure.
5525  *
5526  * This routine is invoked to unset the driver internal resources set up
5527  * specific for supporting the SLI-4 HBA device it attached to.
5528  **/
5529 static void
5530 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5531 {
5532         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5533 
5534         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5535         kfree(phba->sli4_hba.cpu_map);
5536         phba->sli4_hba.num_present_cpu = 0;
5537         phba->sli4_hba.num_online_cpu = 0;
5538         phba->sli4_hba.curr_disp_cpu = 0;
5539 
5540         /* Free memory allocated for msi-x interrupt vector entries */
5541         kfree(phba->sli4_hba.msix_entries);
5542 
5543         /* Free memory allocated for fast-path work queue handles */
5544         kfree(phba->sli4_hba.fcp_eq_hdl);
5545 
5546         /* Free the allocated rpi headers. */
5547         lpfc_sli4_remove_rpi_hdrs(phba);
5548         lpfc_sli4_remove_rpis(phba);
5549 
5550         /* Free eligible FCF index bmask */
5551         kfree(phba->fcf.fcf_rr_bmask);
5552 
5553         /* Free the ELS sgl list */
5554         lpfc_free_active_sgl(phba);
5555         lpfc_free_els_sgl_list(phba);
5556 
5557         /* Free the completion queue EQ event pool */
5558         lpfc_sli4_cq_event_release_all(phba);
5559         lpfc_sli4_cq_event_pool_destroy(phba);
5560 
5561         /* Release resource identifiers. */
5562         lpfc_sli4_dealloc_resource_identifiers(phba);
5563 
5564         /* Free the bsmbx region. */
5565         lpfc_destroy_bootstrap_mbox(phba);
5566 
5567         /* Free the SLI Layer memory with SLI4 HBAs */
5568         lpfc_mem_free_all(phba);
5569 
5570         /* Free the current connect table */
5571         list_for_each_entry_safe(conn_entry, next_conn_entry,
5572                 &phba->fcf_conn_rec_list, list) {
5573                 list_del_init(&conn_entry->list);
5574                 kfree(conn_entry);
5575         }
5576 
5577         return;
5578 }
5579 
5580 /**
5581  * lpfc_init_api_table_setup - Set up init api function jump table
5582  * @phba: The hba struct for which this call is being executed.
5583  * @dev_grp: The HBA PCI-Device group number.
5584  *
5585  * This routine sets up the device INIT interface API function jump table
5586  * in @phba struct.
5587  *
5588  * Returns: 0 - success, -ENODEV - failure.
5589  **/
5590 int
5591 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5592 {
5593         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5594         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5595         phba->lpfc_selective_reset = lpfc_selective_reset;
5596         switch (dev_grp) {
5597         case LPFC_PCI_DEV_LP:
5598                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5599                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5600                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5601                 break;
5602         case LPFC_PCI_DEV_OC:
5603                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5604                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5605                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5606                 break;
5607         default:
5608                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5609                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5610                                 dev_grp);
5611                 return -ENODEV;
5612                 break;
5613         }
5614         return 0;
5615 }
5616 
5617 /**
5618  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5619  * @phba: pointer to lpfc hba data structure.
5620  *
5621  * This routine is invoked to set up the driver internal resources before the
5622  * device specific resource setup to support the HBA device it attached to.
5623  *
5624  * Return codes
5625  *      0 - successful
5626  *      other values - error
5627  **/
5628 static int
5629 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5630 {
5631         /*
5632          * Driver resources common to all SLI revisions
5633          */
5634         atomic_set(&phba->fast_event_count, 0);
5635         spin_lock_init(&phba->hbalock);
5636 
5637         /* Initialize ndlp management spinlock */
5638         spin_lock_init(&phba->ndlp_lock);
5639 
5640         INIT_LIST_HEAD(&phba->port_list);
5641         INIT_LIST_HEAD(&phba->work_list);
5642         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5643 
5644         /* Initialize the wait queue head for the kernel thread */
5645         init_waitqueue_head(&phba->work_waitq);
5646 
5647         /* Initialize the scsi buffer list used by driver for scsi IO */
5648         spin_lock_init(&phba->scsi_buf_list_get_lock);
5649         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5650         spin_lock_init(&phba->scsi_buf_list_put_lock);
5651         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5652 
5653         /* Initialize the fabric iocb list */
5654         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5655 
5656         /* Initialize list to save ELS buffers */
5657         INIT_LIST_HEAD(&phba->elsbuf);
5658 
5659         /* Initialize FCF connection rec list */
5660         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5661 
5662         /* Initialize OAS configuration list */
5663         spin_lock_init(&phba->devicelock);
5664         INIT_LIST_HEAD(&phba->luns);
5665 
5666         return 0;
5667 }
5668 
5669 /**
5670  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5671  * @phba: pointer to lpfc hba data structure.
5672  *
5673  * This routine is invoked to set up the driver internal resources after the
5674  * device specific resource setup to support the HBA device it attached to.
5675  *
5676  * Return codes
5677  *      0 - successful
5678  *      other values - error
5679  **/
5680 static int
5681 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5682 {
5683         int error;
5684 
5685         /* Startup the kernel thread for this host adapter. */
5686         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5687                                           "lpfc_worker_%d", phba->brd_no);
5688         if (IS_ERR(phba->worker_thread)) {
5689                 error = PTR_ERR(phba->worker_thread);
5690                 return error;
5691         }
5692 
5693         return 0;
5694 }
5695 
5696 /**
5697  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5698  * @phba: pointer to lpfc hba data structure.
5699  *
5700  * This routine is invoked to unset the driver internal resources set up after
5701  * the device specific resource setup for supporting the HBA device it
5702  * attached to.
5703  **/
5704 static void
5705 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5706 {
5707         /* Stop kernel worker thread */
5708         kthread_stop(phba->worker_thread);
5709 }
5710 
5711 /**
5712  * lpfc_free_iocb_list - Free iocb list.
5713  * @phba: pointer to lpfc hba data structure.
5714  *
5715  * This routine is invoked to free the driver's IOCB list and memory.
5716  **/
5717 static void
5718 lpfc_free_iocb_list(struct lpfc_hba *phba)
5719 {
5720         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5721 
5722         spin_lock_irq(&phba->hbalock);
5723         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5724                                  &phba->lpfc_iocb_list, list) {
5725                 list_del(&iocbq_entry->list);
5726                 kfree(iocbq_entry);
5727                 phba->total_iocbq_bufs--;
5728         }
5729         spin_unlock_irq(&phba->hbalock);
5730 
5731         return;
5732 }
5733 
5734 /**
5735  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5736  * @phba: pointer to lpfc hba data structure.
5737  *
5738  * This routine is invoked to allocate and initizlize the driver's IOCB
5739  * list and set up the IOCB tag array accordingly.
5740  *
5741  * Return codes
5742  *      0 - successful
5743  *      other values - error
5744  **/
5745 static int
5746 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5747 {
5748         struct lpfc_iocbq *iocbq_entry = NULL;
5749         uint16_t iotag;
5750         int i;
5751 
5752         /* Initialize and populate the iocb list per host.  */
5753         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5754         for (i = 0; i < iocb_count; i++) {
5755                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5756                 if (iocbq_entry == NULL) {
5757                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5758                                 "expected %d count. Unloading driver.\n",
5759                                 __func__, i, LPFC_IOCB_LIST_CNT);
5760                         goto out_free_iocbq;
5761                 }
5762 
5763                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5764                 if (iotag == 0) {
5765                         kfree(iocbq_entry);
5766                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5767                                 "Unloading driver.\n", __func__);
5768                         goto out_free_iocbq;
5769                 }
5770                 iocbq_entry->sli4_lxritag = NO_XRI;
5771                 iocbq_entry->sli4_xritag = NO_XRI;
5772 
5773                 spin_lock_irq(&phba->hbalock);
5774                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5775                 phba->total_iocbq_bufs++;
5776                 spin_unlock_irq(&phba->hbalock);
5777         }
5778 
5779         return 0;
5780 
5781 out_free_iocbq:
5782         lpfc_free_iocb_list(phba);
5783 
5784         return -ENOMEM;
5785 }
5786 
5787 /**
5788  * lpfc_free_sgl_list - Free a given sgl list.
5789  * @phba: pointer to lpfc hba data structure.
5790  * @sglq_list: pointer to the head of sgl list.
5791  *
5792  * This routine is invoked to free a give sgl list and memory.
5793  **/
5794 void
5795 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5796 {
5797         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5798 
5799         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5800                 list_del(&sglq_entry->list);
5801                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5802                 kfree(sglq_entry);
5803         }
5804 }
5805 
5806 /**
5807  * lpfc_free_els_sgl_list - Free els sgl list.
5808  * @phba: pointer to lpfc hba data structure.
5809  *
5810  * This routine is invoked to free the driver's els sgl list and memory.
5811  **/
5812 static void
5813 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5814 {
5815         LIST_HEAD(sglq_list);
5816         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
5817 
5818         /* Retrieve all els sgls from driver list */
5819         spin_lock_irq(&phba->hbalock);
5820         spin_lock(&pring->ring_lock);
5821         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5822         spin_unlock(&pring->ring_lock);
5823         spin_unlock_irq(&phba->hbalock);
5824 
5825         /* Now free the sgl list */
5826         lpfc_free_sgl_list(phba, &sglq_list);
5827 }
5828 
5829 /**
5830  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5831  * @phba: pointer to lpfc hba data structure.
5832  *
5833  * This routine is invoked to allocate the driver's active sgl memory.
5834  * This array will hold the sglq_entry's for active IOs.
5835  **/
5836 static int
5837 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5838 {
5839         int size;
5840         size = sizeof(struct lpfc_sglq *);
5841         size *= phba->sli4_hba.max_cfg_param.max_xri;
5842 
5843         phba->sli4_hba.lpfc_sglq_active_list =
5844                 kzalloc(size, GFP_KERNEL);
5845         if (!phba->sli4_hba.lpfc_sglq_active_list)
5846                 return -ENOMEM;
5847         return 0;
5848 }
5849 
5850 /**
5851  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5852  * @phba: pointer to lpfc hba data structure.
5853  *
5854  * This routine is invoked to walk through the array of active sglq entries
5855  * and free all of the resources.
5856  * This is just a place holder for now.
5857  **/
5858 static void
5859 lpfc_free_active_sgl(struct lpfc_hba *phba)
5860 {
5861         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5862 }
5863 
5864 /**
5865  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5866  * @phba: pointer to lpfc hba data structure.
5867  *
5868  * This routine is invoked to allocate and initizlize the driver's sgl
5869  * list and set up the sgl xritag tag array accordingly.
5870  *
5871  **/
5872 static void
5873 lpfc_init_sgl_list(struct lpfc_hba *phba)
5874 {
5875         /* Initialize and populate the sglq list per host/VF. */
5876         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5877         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5878 
5879         /* els xri-sgl book keeping */
5880         phba->sli4_hba.els_xri_cnt = 0;
5881 
5882         /* scsi xri-buffer book keeping */
5883         phba->sli4_hba.scsi_xri_cnt = 0;
5884 }
5885 
5886 /**
5887  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5888  * @phba: pointer to lpfc hba data structure.
5889  *
5890  * This routine is invoked to post rpi header templates to the
5891  * port for those SLI4 ports that do not support extents.  This routine
5892  * posts a PAGE_SIZE memory region to the port to hold up to
5893  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5894  * and should be called only when interrupts are disabled.
5895  *
5896  * Return codes
5897  *      0 - successful
5898  *      -ERROR - otherwise.
5899  **/
5900 int
5901 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5902 {
5903         int rc = 0;
5904         struct lpfc_rpi_hdr *rpi_hdr;
5905 
5906         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5907         if (!phba->sli4_hba.rpi_hdrs_in_use)
5908                 return rc;
5909         if (phba->sli4_hba.extents_in_use)
5910                 return -EIO;
5911 
5912         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5913         if (!rpi_hdr) {
5914                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5915                                 "0391 Error during rpi post operation\n");
5916                 lpfc_sli4_remove_rpis(phba);
5917                 rc = -ENODEV;
5918         }
5919 
5920         return rc;
5921 }
5922 
5923 /**
5924  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5925  * @phba: pointer to lpfc hba data structure.
5926  *
5927  * This routine is invoked to allocate a single 4KB memory region to
5928  * support rpis and stores them in the phba.  This single region
5929  * provides support for up to 64 rpis.  The region is used globally
5930  * by the device.
5931  *
5932  * Returns:
5933  *   A valid rpi hdr on success.
5934  *   A NULL pointer on any failure.
5935  **/
5936 struct lpfc_rpi_hdr *
5937 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5938 {
5939         uint16_t rpi_limit, curr_rpi_range;
5940         struct lpfc_dmabuf *dmabuf;
5941         struct lpfc_rpi_hdr *rpi_hdr;
5942         uint32_t rpi_count;
5943 
5944         /*
5945          * If the SLI4 port supports extents, posting the rpi header isn't
5946          * required.  Set the expected maximum count and let the actual value
5947          * get set when extents are fully allocated.
5948          */
5949         if (!phba->sli4_hba.rpi_hdrs_in_use)
5950                 return NULL;
5951         if (phba->sli4_hba.extents_in_use)
5952                 return NULL;
5953 
5954         /* The limit on the logical index is just the max_rpi count. */
5955         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5956         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5957 
5958         spin_lock_irq(&phba->hbalock);
5959         /*
5960          * Establish the starting RPI in this header block.  The starting
5961          * rpi is normalized to a zero base because the physical rpi is
5962          * port based.
5963          */
5964         curr_rpi_range = phba->sli4_hba.next_rpi;
5965         spin_unlock_irq(&phba->hbalock);
5966 
5967         /*
5968          * The port has a limited number of rpis. The increment here
5969          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5970          * and to allow the full max_rpi range per port.
5971          */
5972         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5973                 rpi_count = rpi_limit - curr_rpi_range;
5974         else
5975                 rpi_count = LPFC_RPI_HDR_COUNT;
5976 
5977         if (!rpi_count)
5978                 return NULL;
5979         /*
5980          * First allocate the protocol header region for the port.  The
5981          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5982          */
5983         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5984         if (!dmabuf)
5985                 return NULL;
5986 
5987         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
5988                                            LPFC_HDR_TEMPLATE_SIZE,
5989                                            &dmabuf->phys, GFP_KERNEL);
5990         if (!dmabuf->virt) {
5991                 rpi_hdr = NULL;
5992                 goto err_free_dmabuf;
5993         }
5994 
5995         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5996                 rpi_hdr = NULL;
5997                 goto err_free_coherent;
5998         }
5999 
6000         /* Save the rpi header data for cleanup later. */
6001         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6002         if (!rpi_hdr)
6003                 goto err_free_coherent;
6004 
6005         rpi_hdr->dmabuf = dmabuf;
6006         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6007         rpi_hdr->page_count = 1;
6008         spin_lock_irq(&phba->hbalock);
6009 
6010         /* The rpi_hdr stores the logical index only. */
6011         rpi_hdr->start_rpi = curr_rpi_range;
6012         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6013 
6014         /*
6015          * The next_rpi stores the next logical module-64 rpi value used
6016          * to post physical rpis in subsequent rpi postings.
6017          */
6018         phba->sli4_hba.next_rpi += rpi_count;
6019         spin_unlock_irq(&phba->hbalock);
6020         return rpi_hdr;
6021 
6022  err_free_coherent:
6023         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6024                           dmabuf->virt, dmabuf->phys);
6025  err_free_dmabuf:
6026         kfree(dmabuf);
6027         return NULL;
6028 }
6029 
6030 /**
6031  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6032  * @phba: pointer to lpfc hba data structure.
6033  *
6034  * This routine is invoked to remove all memory resources allocated
6035  * to support rpis for SLI4 ports not supporting extents. This routine
6036  * presumes the caller has released all rpis consumed by fabric or port
6037  * logins and is prepared to have the header pages removed.
6038  **/
6039 void
6040 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6041 {
6042         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6043 
6044         if (!phba->sli4_hba.rpi_hdrs_in_use)
6045                 goto exit;
6046 
6047         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6048                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6049                 list_del(&rpi_hdr->list);
6050                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6051                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6052                 kfree(rpi_hdr->dmabuf);
6053                 kfree(rpi_hdr);
6054         }
6055  exit:
6056         /* There are no rpis available to the port now. */
6057         phba->sli4_hba.next_rpi = 0;
6058 }
6059 
6060 /**
6061  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6062  * @pdev: pointer to pci device data structure.
6063  *
6064  * This routine is invoked to allocate the driver hba data structure for an
6065  * HBA device. If the allocation is successful, the phba reference to the
6066  * PCI device data structure is set.
6067  *
6068  * Return codes
6069  *      pointer to @phba - successful
6070  *      NULL - error
6071  **/
6072 static struct lpfc_hba *
6073 lpfc_hba_alloc(struct pci_dev *pdev)
6074 {
6075         struct lpfc_hba *phba;
6076 
6077         /* Allocate memory for HBA structure */
6078         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6079         if (!phba) {
6080                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6081                 return NULL;
6082         }
6083 
6084         /* Set reference to PCI device in HBA structure */
6085         phba->pcidev = pdev;
6086 
6087         /* Assign an unused board number */
6088         phba->brd_no = lpfc_get_instance();
6089         if (phba->brd_no < 0) {
6090                 kfree(phba);
6091                 return NULL;
6092         }
6093 
6094         spin_lock_init(&phba->ct_ev_lock);
6095         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6096 
6097         return phba;
6098 }
6099 
6100 /**
6101  * lpfc_hba_free - Free driver hba data structure with a device.
6102  * @phba: pointer to lpfc hba data structure.
6103  *
6104  * This routine is invoked to free the driver hba data structure with an
6105  * HBA device.
6106  **/
6107 static void
6108 lpfc_hba_free(struct lpfc_hba *phba)
6109 {
6110         /* Release the driver assigned board number */
6111         idr_remove(&lpfc_hba_index, phba->brd_no);
6112 
6113         /* Free memory allocated with sli rings */
6114         kfree(phba->sli.ring);
6115         phba->sli.ring = NULL;
6116 
6117         kfree(phba);
6118         return;
6119 }
6120 
6121 /**
6122  * lpfc_create_shost - Create hba physical port with associated scsi host.
6123  * @phba: pointer to lpfc hba data structure.
6124  *
6125  * This routine is invoked to create HBA physical port and associate a SCSI
6126  * host with it.
6127  *
6128  * Return codes
6129  *      0 - successful
6130  *      other values - error
6131  **/
6132 static int
6133 lpfc_create_shost(struct lpfc_hba *phba)
6134 {
6135         struct lpfc_vport *vport;
6136         struct Scsi_Host  *shost;
6137 
6138         /* Initialize HBA FC structure */
6139         phba->fc_edtov = FF_DEF_EDTOV;
6140         phba->fc_ratov = FF_DEF_RATOV;
6141         phba->fc_altov = FF_DEF_ALTOV;
6142         phba->fc_arbtov = FF_DEF_ARBTOV;
6143 
6144         atomic_set(&phba->sdev_cnt, 0);
6145         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6146         if (!vport)
6147                 return -ENODEV;
6148 
6149         shost = lpfc_shost_from_vport(vport);
6150         phba->pport = vport;
6151         lpfc_debugfs_initialize(vport);
6152         /* Put reference to SCSI host to driver's device private data */
6153         pci_set_drvdata(phba->pcidev, shost);
6154 
6155         /*
6156          * At this point we are fully registered with PSA. In addition,
6157          * any initial discovery should be completed.
6158          */
6159         vport->load_flag |= FC_ALLOW_FDMI;
6160         if (phba->cfg_fdmi_on > LPFC_FDMI_NO_SUPPORT) {
6161 
6162                 /* Setup appropriate attribute masks */
6163                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6164                 if (phba->cfg_fdmi_on == LPFC_FDMI_SMART_SAN)
6165                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6166                 else
6167                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6168         }
6169         return 0;
6170 }
6171 
6172 /**
6173  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6174  * @phba: pointer to lpfc hba data structure.
6175  *
6176  * This routine is invoked to destroy HBA physical port and the associated
6177  * SCSI host.
6178  **/
6179 static void
6180 lpfc_destroy_shost(struct lpfc_hba *phba)
6181 {
6182         struct lpfc_vport *vport = phba->pport;
6183 
6184         /* Destroy physical port that associated with the SCSI host */
6185         destroy_port(vport);
6186 
6187         return;
6188 }
6189 
6190 /**
6191  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6192  * @phba: pointer to lpfc hba data structure.
6193  * @shost: the shost to be used to detect Block guard settings.
6194  *
6195  * This routine sets up the local Block guard protocol settings for @shost.
6196  * This routine also allocates memory for debugging bg buffers.
6197  **/
6198 static void
6199 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6200 {
6201         uint32_t old_mask;
6202         uint32_t old_guard;
6203 
6204         int pagecnt = 10;
6205         if (lpfc_prot_mask && lpfc_prot_guard) {
6206                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6207                                 "1478 Registering BlockGuard with the "
6208                                 "SCSI layer\n");
6209 
6210                 old_mask = lpfc_prot_mask;
6211                 old_guard = lpfc_prot_guard;
6212 
6213                 /* Only allow supported values */
6214                 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6215                         SHOST_DIX_TYPE0_PROTECTION |
6216                         SHOST_DIX_TYPE1_PROTECTION);
6217                 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
6218 
6219                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6220                 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6221                         lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6222 
6223                 if (lpfc_prot_mask && lpfc_prot_guard) {
6224                         if ((old_mask != lpfc_prot_mask) ||
6225                                 (old_guard != lpfc_prot_guard))
6226                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6227                                         "1475 Registering BlockGuard with the "
6228                                         "SCSI layer: mask %d  guard %d\n",
6229                                         lpfc_prot_mask, lpfc_prot_guard);
6230 
6231                         scsi_host_set_prot(shost, lpfc_prot_mask);
6232                         scsi_host_set_guard(shost, lpfc_prot_guard);
6233                 } else
6234                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6235                                 "1479 Not Registering BlockGuard with the SCSI "
6236                                 "layer, Bad protection parameters: %d %d\n",
6237                                 old_mask, old_guard);
6238         }
6239 
6240         if (!_dump_buf_data) {
6241                 while (pagecnt) {
6242                         spin_lock_init(&_dump_buf_lock);
6243                         _dump_buf_data =
6244                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6245                         if (_dump_buf_data) {
6246                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6247                                         "9043 BLKGRD: allocated %d pages for "
6248                                        "_dump_buf_data at 0x%p\n",
6249                                        (1 << pagecnt), _dump_buf_data);
6250                                 _dump_buf_data_order = pagecnt;
6251                                 memset(_dump_buf_data, 0,
6252                                        ((1 << PAGE_SHIFT) << pagecnt));
6253                                 break;
6254                         } else
6255                                 --pagecnt;
6256                 }
6257                 if (!_dump_buf_data_order)
6258                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6259                                 "9044 BLKGRD: ERROR unable to allocate "
6260                                "memory for hexdump\n");
6261         } else
6262                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6263                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6264                        "\n", _dump_buf_data);
6265         if (!_dump_buf_dif) {
6266                 while (pagecnt) {
6267                         _dump_buf_dif =
6268                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6269                         if (_dump_buf_dif) {
6270                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6271                                         "9046 BLKGRD: allocated %d pages for "
6272                                        "_dump_buf_dif at 0x%p\n",
6273                                        (1 << pagecnt), _dump_buf_dif);
6274                                 _dump_buf_dif_order = pagecnt;
6275                                 memset(_dump_buf_dif, 0,
6276                                        ((1 << PAGE_SHIFT) << pagecnt));
6277                                 break;
6278                         } else
6279                                 --pagecnt;
6280                 }
6281                 if (!_dump_buf_dif_order)
6282                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6283                         "9047 BLKGRD: ERROR unable to allocate "
6284                                "memory for hexdump\n");
6285         } else
6286                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6287                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6288                        _dump_buf_dif);
6289 }
6290 
6291 /**
6292  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6293  * @phba: pointer to lpfc hba data structure.
6294  *
6295  * This routine is invoked to perform all the necessary post initialization
6296  * setup for the device.
6297  **/
6298 static void
6299 lpfc_post_init_setup(struct lpfc_hba *phba)
6300 {
6301         struct Scsi_Host  *shost;
6302         struct lpfc_adapter_event_header adapter_event;
6303 
6304         /* Get the default values for Model Name and Description */
6305         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6306 
6307         /*
6308          * hba setup may have changed the hba_queue_depth so we need to
6309          * adjust the value of can_queue.
6310          */
6311         shost = pci_get_drvdata(phba->pcidev);
6312         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6313         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6314                 lpfc_setup_bg(phba, shost);
6315 
6316         lpfc_host_attrib_init(shost);
6317 
6318         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6319                 spin_lock_irq(shost->host_lock);
6320                 lpfc_poll_start_timer(phba);
6321                 spin_unlock_irq(shost->host_lock);
6322         }
6323 
6324         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6325                         "0428 Perform SCSI scan\n");
6326         /* Send board arrival event to upper layer */
6327         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6328         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6329         fc_host_post_vendor_event(shost, fc_get_event_number(),
6330                                   sizeof(adapter_event),
6331                                   (char *) &adapter_event,
6332                                   LPFC_NL_VENDOR_ID);
6333         return;
6334 }
6335 
6336 /**
6337  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6338  * @phba: pointer to lpfc hba data structure.
6339  *
6340  * This routine is invoked to set up the PCI device memory space for device
6341  * with SLI-3 interface spec.
6342  *
6343  * Return codes
6344  *      0 - successful
6345  *      other values - error
6346  **/
6347 static int
6348 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6349 {
6350         struct pci_dev *pdev;
6351         unsigned long bar0map_len, bar2map_len;
6352         int i, hbq_count;
6353         void *ptr;
6354         int error = -ENODEV;
6355 
6356         /* Obtain PCI device reference */
6357         if (!phba->pcidev)
6358                 return error;
6359         else
6360                 pdev = phba->pcidev;
6361 
6362         /* Set the device DMA mask size */
6363         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6364          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6365                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6366                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6367                         return error;
6368                 }
6369         }
6370 
6371         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6372          * required by each mapping.
6373          */
6374         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6375         bar0map_len = pci_resource_len(pdev, 0);
6376 
6377         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6378         bar2map_len = pci_resource_len(pdev, 2);
6379 
6380         /* Map HBA SLIM to a kernel virtual address. */
6381         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6382         if (!phba->slim_memmap_p) {
6383                 dev_printk(KERN_ERR, &pdev->dev,
6384                            "ioremap failed for SLIM memory.\n");
6385                 goto out;
6386         }
6387 
6388         /* Map HBA Control Registers to a kernel virtual address. */
6389         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6390         if (!phba->ctrl_regs_memmap_p) {
6391                 dev_printk(KERN_ERR, &pdev->dev,
6392                            "ioremap failed for HBA control registers.\n");
6393                 goto out_iounmap_slim;
6394         }
6395 
6396         /* Allocate memory for SLI-2 structures */
6397         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6398                                                 &phba->slim2p.phys, GFP_KERNEL);
6399         if (!phba->slim2p.virt)
6400                 goto out_iounmap;
6401 
6402         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6403         phba->mbox_ext = (phba->slim2p.virt +
6404                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6405         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6406         phba->IOCBs = (phba->slim2p.virt +
6407                        offsetof(struct lpfc_sli2_slim, IOCBs));
6408 
6409         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6410                                                  lpfc_sli_hbq_size(),
6411                                                  &phba->hbqslimp.phys,
6412                                                  GFP_KERNEL);
6413         if (!phba->hbqslimp.virt)
6414                 goto out_free_slim;
6415 
6416         hbq_count = lpfc_sli_hbq_count();
6417         ptr = phba->hbqslimp.virt;
6418         for (i = 0; i < hbq_count; ++i) {
6419                 phba->hbqs[i].hbq_virt = ptr;
6420                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6421                 ptr += (lpfc_hbq_defs[i]->entry_count *
6422                         sizeof(struct lpfc_hbq_entry));
6423         }
6424         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6425         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6426 
6427         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6428 
6429         INIT_LIST_HEAD(&phba->rb_pend_list);
6430 
6431         phba->MBslimaddr = phba->slim_memmap_p;
6432         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6433         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6434         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6435         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6436 
6437         return 0;
6438 
6439 out_free_slim:
6440         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6441                           phba->slim2p.virt, phba->slim2p.phys);
6442 out_iounmap:
6443         iounmap(phba->ctrl_regs_memmap_p);
6444 out_iounmap_slim:
6445         iounmap(phba->slim_memmap_p);
6446 out:
6447         return error;
6448 }
6449 
6450 /**
6451  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6452  * @phba: pointer to lpfc hba data structure.
6453  *
6454  * This routine is invoked to unset the PCI device memory space for device
6455  * with SLI-3 interface spec.
6456  **/
6457 static void
6458 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6459 {
6460         struct pci_dev *pdev;
6461 
6462         /* Obtain PCI device reference */
6463         if (!phba->pcidev)
6464                 return;
6465         else
6466                 pdev = phba->pcidev;
6467 
6468         /* Free coherent DMA memory allocated */
6469         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6470                           phba->hbqslimp.virt, phba->hbqslimp.phys);
6471         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6472                           phba->slim2p.virt, phba->slim2p.phys);
6473 
6474         /* I/O memory unmap */
6475         iounmap(phba->ctrl_regs_memmap_p);
6476         iounmap(phba->slim_memmap_p);
6477 
6478         return;
6479 }
6480 
6481 /**
6482  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6483  * @phba: pointer to lpfc hba data structure.
6484  *
6485  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6486  * done and check status.
6487  *
6488  * Return 0 if successful, otherwise -ENODEV.
6489  **/
6490 int
6491 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6492 {
6493         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6494         struct lpfc_register reg_data;
6495         int i, port_error = 0;
6496         uint32_t if_type;
6497 
6498         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6499         memset(&reg_data, 0, sizeof(reg_data));
6500         if (!phba->sli4_hba.PSMPHRregaddr)
6501                 return -ENODEV;
6502 
6503         /* Wait up to 30 seconds for the SLI Port POST done and ready */
6504         for (i = 0; i < 3000; i++) {
6505                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6506                         &portsmphr_reg.word0) ||
6507                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6508                         /* Port has a fatal POST error, break out */
6509                         port_error = -ENODEV;
6510                         break;
6511                 }
6512                 if (LPFC_POST_STAGE_PORT_READY ==
6513                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6514                         break;
6515                 msleep(10);
6516         }
6517 
6518         /*
6519          * If there was a port error during POST, then don't proceed with
6520          * other register reads as the data may not be valid.  Just exit.
6521          */
6522         if (port_error) {
6523                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6524                         "1408 Port Failed POST - portsmphr=0x%x, "
6525                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6526                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6527                         portsmphr_reg.word0,
6528                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6529                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6530                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6531                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6532                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6533                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6534                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6535                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6536         } else {
6537                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6538                                 "2534 Device Info: SLIFamily=0x%x, "
6539                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6540                                 "SLIHint_2=0x%x, FT=0x%x\n",
6541                                 bf_get(lpfc_sli_intf_sli_family,
6542                                        &phba->sli4_hba.sli_intf),
6543                                 bf_get(lpfc_sli_intf_slirev,
6544                                        &phba->sli4_hba.sli_intf),
6545                                 bf_get(lpfc_sli_intf_if_type,
6546                                        &phba->sli4_hba.sli_intf),
6547                                 bf_get(lpfc_sli_intf_sli_hint1,
6548                                        &phba->sli4_hba.sli_intf),
6549                                 bf_get(lpfc_sli_intf_sli_hint2,
6550                                        &phba->sli4_hba.sli_intf),
6551                                 bf_get(lpfc_sli_intf_func_type,
6552                                        &phba->sli4_hba.sli_intf));
6553                 /*
6554                  * Check for other Port errors during the initialization
6555                  * process.  Fail the load if the port did not come up
6556                  * correctly.
6557                  */
6558                 if_type = bf_get(lpfc_sli_intf_if_type,
6559                                  &phba->sli4_hba.sli_intf);
6560                 switch (if_type) {
6561                 case LPFC_SLI_INTF_IF_TYPE_0:
6562                         phba->sli4_hba.ue_mask_lo =
6563                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6564                         phba->sli4_hba.ue_mask_hi =
6565                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6566                         uerrlo_reg.word0 =
6567                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6568                         uerrhi_reg.word0 =
6569                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6570                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6571                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6572                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6573                                                 "1422 Unrecoverable Error "
6574                                                 "Detected during POST "
6575                                                 "uerr_lo_reg=0x%x, "
6576                                                 "uerr_hi_reg=0x%x, "
6577                                                 "ue_mask_lo_reg=0x%x, "
6578                                                 "ue_mask_hi_reg=0x%x\n",
6579                                                 uerrlo_reg.word0,
6580                                                 uerrhi_reg.word0,
6581                                                 phba->sli4_hba.ue_mask_lo,
6582                                                 phba->sli4_hba.ue_mask_hi);
6583                                 port_error = -ENODEV;
6584                         }
6585                         break;
6586                 case LPFC_SLI_INTF_IF_TYPE_2:
6587                         /* Final checks.  The port status should be clean. */
6588                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6589                                 &reg_data.word0) ||
6590                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6591                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6592                                 phba->work_status[0] =
6593                                         readl(phba->sli4_hba.u.if_type2.
6594                                               ERR1regaddr);
6595                                 phba->work_status[1] =
6596                                         readl(phba->sli4_hba.u.if_type2.
6597                                               ERR2regaddr);
6598                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6599                                         "2888 Unrecoverable port error "
6600                                         "following POST: port status reg "
6601                                         "0x%x, port_smphr reg 0x%x, "
6602                                         "error 1=0x%x, error 2=0x%x\n",
6603                                         reg_data.word0,
6604                                         portsmphr_reg.word0,
6605                                         phba->work_status[0],
6606                                         phba->work_status[1]);
6607                                 port_error = -ENODEV;
6608                         }
6609                         break;
6610                 case LPFC_SLI_INTF_IF_TYPE_1:
6611                 default:
6612                         break;
6613                 }
6614         }
6615         return port_error;
6616 }
6617 
6618 /**
6619  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6620  * @phba: pointer to lpfc hba data structure.
6621  * @if_type:  The SLI4 interface type getting configured.
6622  *
6623  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6624  * memory map.
6625  **/
6626 static void
6627 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6628 {
6629         switch (if_type) {
6630         case LPFC_SLI_INTF_IF_TYPE_0:
6631                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6632                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6633                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6634                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6635                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6636                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6637                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6638                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6639                 phba->sli4_hba.SLIINTFregaddr =
6640                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6641                 break;
6642         case LPFC_SLI_INTF_IF_TYPE_2:
6643                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6644                         phba->sli4_hba.conf_regs_memmap_p +
6645                                                 LPFC_CTL_PORT_ER1_OFFSET;
6646                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6647                         phba->sli4_hba.conf_regs_memmap_p +
6648                                                 LPFC_CTL_PORT_ER2_OFFSET;
6649                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6650                         phba->sli4_hba.conf_regs_memmap_p +
6651                                                 LPFC_CTL_PORT_CTL_OFFSET;
6652                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6653                         phba->sli4_hba.conf_regs_memmap_p +
6654                                                 LPFC_CTL_PORT_STA_OFFSET;
6655                 phba->sli4_hba.SLIINTFregaddr =
6656                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6657                 phba->sli4_hba.PSMPHRregaddr =
6658                         phba->sli4_hba.conf_regs_memmap_p +
6659                                                 LPFC_CTL_PORT_SEM_OFFSET;
6660                 phba->sli4_hba.RQDBregaddr =
6661                         phba->sli4_hba.conf_regs_memmap_p +
6662                                                 LPFC_ULP0_RQ_DOORBELL;
6663                 phba->sli4_hba.WQDBregaddr =
6664                         phba->sli4_hba.conf_regs_memmap_p +
6665                                                 LPFC_ULP0_WQ_DOORBELL;
6666                 phba->sli4_hba.EQCQDBregaddr =
6667                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6668                 phba->sli4_hba.MQDBregaddr =
6669                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6670                 phba->sli4_hba.BMBXregaddr =
6671                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6672                 break;
6673         case LPFC_SLI_INTF_IF_TYPE_1:
6674         default:
6675                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6676                            "FATAL - unsupported SLI4 interface type - %d\n",
6677                            if_type);
6678                 break;
6679         }
6680 }
6681 
6682 /**
6683  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6684  * @phba: pointer to lpfc hba data structure.
6685  *
6686  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6687  * memory map.
6688  **/
6689 static void
6690 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6691 {
6692         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6693                 LPFC_SLIPORT_IF0_SMPHR;
6694         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6695                 LPFC_HST_ISR0;
6696         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6697                 LPFC_HST_IMR0;
6698         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6699                 LPFC_HST_ISCR0;
6700 }
6701 
6702 /**
6703  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6704  * @phba: pointer to lpfc hba data structure.
6705  * @vf: virtual function number
6706  *
6707  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6708  * based on the given viftual function number, @vf.
6709  *
6710  * Return 0 if successful, otherwise -ENODEV.
6711  **/
6712 static int
6713 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6714 {
6715         if (vf > LPFC_VIR_FUNC_MAX)
6716                 return -ENODEV;
6717 
6718         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6719                                 vf * LPFC_VFR_PAGE_SIZE +
6720                                         LPFC_ULP0_RQ_DOORBELL);
6721         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6722                                 vf * LPFC_VFR_PAGE_SIZE +
6723                                         LPFC_ULP0_WQ_DOORBELL);
6724         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6725                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6726         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6727                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6728         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6729                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6730         return 0;
6731 }
6732 
6733 /**
6734  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6735  * @phba: pointer to lpfc hba data structure.
6736  *
6737  * This routine is invoked to create the bootstrap mailbox
6738  * region consistent with the SLI-4 interface spec.  This
6739  * routine allocates all memory necessary to communicate
6740  * mailbox commands to the port and sets up all alignment
6741  * needs.  No locks are expected to be held when calling
6742  * this routine.
6743  *
6744  * Return codes
6745  *      0 - successful
6746  *      -ENOMEM - could not allocated memory.
6747  **/
6748 static int
6749 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6750 {
6751         uint32_t bmbx_size;
6752         struct lpfc_dmabuf *dmabuf;
6753         struct dma_address *dma_address;
6754         uint32_t pa_addr;
6755         uint64_t phys_addr;
6756 
6757         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6758         if (!dmabuf)
6759                 return -ENOMEM;
6760 
6761         /*
6762          * The bootstrap mailbox region is comprised of 2 parts
6763          * plus an alignment restriction of 16 bytes.
6764          */
6765         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6766         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
6767                                            &dmabuf->phys, GFP_KERNEL);
6768         if (!dmabuf->virt) {
6769                 kfree(dmabuf);
6770                 return -ENOMEM;
6771         }
6772 
6773         /*
6774          * Initialize the bootstrap mailbox pointers now so that the register
6775          * operations are simple later.  The mailbox dma address is required
6776          * to be 16-byte aligned.  Also align the virtual memory as each
6777          * maibox is copied into the bmbx mailbox region before issuing the
6778          * command to the port.
6779          */
6780         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6781         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6782 
6783         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6784                                               LPFC_ALIGN_16_BYTE);
6785         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6786                                               LPFC_ALIGN_16_BYTE);
6787 
6788         /*
6789          * Set the high and low physical addresses now.  The SLI4 alignment
6790          * requirement is 16 bytes and the mailbox is posted to the port
6791          * as two 30-bit addresses.  The other data is a bit marking whether
6792          * the 30-bit address is the high or low address.
6793          * Upcast bmbx aphys to 64bits so shift instruction compiles
6794          * clean on 32 bit machines.
6795          */
6796         dma_address = &phba->sli4_hba.bmbx.dma_address;
6797         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6798         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6799         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6800                                            LPFC_BMBX_BIT1_ADDR_HI);
6801 
6802         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6803         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6804                                            LPFC_BMBX_BIT1_ADDR_LO);
6805         return 0;
6806 }
6807 
6808 /**
6809  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6810  * @phba: pointer to lpfc hba data structure.
6811  *
6812  * This routine is invoked to teardown the bootstrap mailbox
6813  * region and release all host resources. This routine requires
6814  * the caller to ensure all mailbox commands recovered, no
6815  * additional mailbox comands are sent, and interrupts are disabled
6816  * before calling this routine.
6817  *
6818  **/
6819 static void
6820 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6821 {
6822         dma_free_coherent(&phba->pcidev->dev,
6823                           phba->sli4_hba.bmbx.bmbx_size,
6824                           phba->sli4_hba.bmbx.dmabuf->virt,
6825                           phba->sli4_hba.bmbx.dmabuf->phys);
6826 
6827         kfree(phba->sli4_hba.bmbx.dmabuf);
6828         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6829 }
6830 
6831 /**
6832  * lpfc_sli4_read_config - Get the config parameters.
6833  * @phba: pointer to lpfc hba data structure.
6834  *
6835  * This routine is invoked to read the configuration parameters from the HBA.
6836  * The configuration parameters are used to set the base and maximum values
6837  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6838  * allocation for the port.
6839  *
6840  * Return codes
6841  *      0 - successful
6842  *      -ENOMEM - No available memory
6843  *      -EIO - The mailbox failed to complete successfully.
6844  **/
6845 int
6846 lpfc_sli4_read_config(struct lpfc_hba *phba)
6847 {
6848         LPFC_MBOXQ_t *pmb;
6849         struct lpfc_mbx_read_config *rd_config;
6850         union  lpfc_sli4_cfg_shdr *shdr;
6851         uint32_t shdr_status, shdr_add_status;
6852         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6853         struct lpfc_rsrc_desc_fcfcoe *desc;
6854         char *pdesc_0;
6855         int length, i, rc = 0, rc2;
6856 
6857         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6858         if (!pmb) {
6859                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6860                                 "2011 Unable to allocate memory for issuing "
6861                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6862                 return -ENOMEM;
6863         }
6864 
6865         lpfc_read_config(phba, pmb);
6866 
6867         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6868         if (rc != MBX_SUCCESS) {
6869                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6870                         "2012 Mailbox failed , mbxCmd x%x "
6871                         "READ_CONFIG, mbxStatus x%x\n",
6872                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6873                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6874                 rc = -EIO;
6875         } else {
6876                 rd_config = &pmb->u.mqe.un.rd_config;
6877                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6878                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6879                         phba->sli4_hba.lnk_info.lnk_tp =
6880                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6881                         phba->sli4_hba.lnk_info.lnk_no =
6882                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6883                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6884                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6885                                         phba->sli4_hba.lnk_info.lnk_tp,
6886                                         phba->sli4_hba.lnk_info.lnk_no);
6887                 } else
6888                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6889                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6890                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6891                 phba->sli4_hba.extents_in_use =
6892                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6893                 phba->sli4_hba.max_cfg_param.max_xri =
6894                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6895                 phba->sli4_hba.max_cfg_param.xri_base =
6896                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6897                 phba->sli4_hba.max_cfg_param.max_vpi =
6898                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6899                 phba->sli4_hba.max_cfg_param.vpi_base =
6900                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6901                 phba->sli4_hba.max_cfg_param.max_rpi =
6902                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6903                 phba->sli4_hba.max_cfg_param.rpi_base =
6904                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6905                 phba->sli4_hba.max_cfg_param.max_vfi =
6906                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6907                 phba->sli4_hba.max_cfg_param.vfi_base =
6908                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6909                 phba->sli4_hba.max_cfg_param.max_fcfi =
6910                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6911                 phba->sli4_hba.max_cfg_param.max_eq =
6912                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6913                 phba->sli4_hba.max_cfg_param.max_rq =
6914                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6915                 phba->sli4_hba.max_cfg_param.max_wq =
6916                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6917                 phba->sli4_hba.max_cfg_param.max_cq =
6918                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6919                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6920                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6921                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6922                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6923                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6924                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6925                 phba->max_vports = phba->max_vpi;
6926                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6927                                 "2003 cfg params Extents? %d "
6928                                 "XRI(B:%d M:%d), "
6929                                 "VPI(B:%d M:%d) "
6930                                 "VFI(B:%d M:%d) "
6931                                 "RPI(B:%d M:%d) "
6932                                 "FCFI(Count:%d)\n",
6933                                 phba->sli4_hba.extents_in_use,
6934                                 phba->sli4_hba.max_cfg_param.xri_base,
6935                                 phba->sli4_hba.max_cfg_param.max_xri,
6936                                 phba->sli4_hba.max_cfg_param.vpi_base,
6937                                 phba->sli4_hba.max_cfg_param.max_vpi,
6938                                 phba->sli4_hba.max_cfg_param.vfi_base,
6939                                 phba->sli4_hba.max_cfg_param.max_vfi,
6940                                 phba->sli4_hba.max_cfg_param.rpi_base,
6941                                 phba->sli4_hba.max_cfg_param.max_rpi,
6942                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6943         }
6944 
6945         if (rc)
6946                 goto read_cfg_out;
6947 
6948         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6949         length = phba->sli4_hba.max_cfg_param.max_xri -
6950                         lpfc_sli4_get_els_iocb_cnt(phba);
6951         if (phba->cfg_hba_queue_depth > length) {
6952                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6953                                 "3361 HBA queue depth changed from %d to %d\n",
6954                                 phba->cfg_hba_queue_depth, length);
6955                 phba->cfg_hba_queue_depth = length;
6956         }
6957 
6958         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6959             LPFC_SLI_INTF_IF_TYPE_2)
6960                 goto read_cfg_out;
6961 
6962         /* get the pf# and vf# for SLI4 if_type 2 port */
6963         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6964                   sizeof(struct lpfc_sli4_cfg_mhdr));
6965         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6966                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6967                          length, LPFC_SLI4_MBX_EMBED);
6968 
6969         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6970         shdr = (union lpfc_sli4_cfg_shdr *)
6971                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6972         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6973         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6974         if (rc2 || shdr_status || shdr_add_status) {
6975                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6976                                 "3026 Mailbox failed , mbxCmd x%x "
6977                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6978                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6979                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6980                 goto read_cfg_out;
6981         }
6982 
6983         /* search for fc_fcoe resrouce descriptor */
6984         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6985 
6986         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6987         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6988         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6989         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6990                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6991         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6992                 goto read_cfg_out;
6993 
6994         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6995                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6996                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6997                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6998                         phba->sli4_hba.iov.pf_number =
6999                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7000                         phba->sli4_hba.iov.vf_number =
7001                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7002                         break;
7003                 }
7004         }
7005 
7006         if (i < LPFC_RSRC_DESC_MAX_NUM)
7007                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7008                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7009                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7010                                 phba->sli4_hba.iov.vf_number);
7011         else
7012                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7013                                 "3028 GET_FUNCTION_CONFIG: failed to find "
7014                                 "Resrouce Descriptor:x%x\n",
7015                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
7016 
7017 read_cfg_out:
7018         mempool_free(pmb, phba->mbox_mem_pool);
7019         return rc;
7020 }
7021 
7022 /**
7023  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7024  * @phba: pointer to lpfc hba data structure.
7025  *
7026  * This routine is invoked to setup the port-side endian order when
7027  * the port if_type is 0.  This routine has no function for other
7028  * if_types.
7029  *
7030  * Return codes
7031  *      0 - successful
7032  *      -ENOMEM - No available memory
7033  *      -EIO - The mailbox failed to complete successfully.
7034  **/
7035 static int
7036 lpfc_setup_endian_order(struct lpfc_hba *phba)
7037 {
7038         LPFC_MBOXQ_t *mboxq;
7039         uint32_t if_type, rc = 0;
7040         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7041                                       HOST_ENDIAN_HIGH_WORD1};
7042 
7043         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7044         switch (if_type) {
7045         case LPFC_SLI_INTF_IF_TYPE_0:
7046                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7047                                                        GFP_KERNEL);
7048                 if (!mboxq) {
7049                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7050                                         "0492 Unable to allocate memory for "
7051                                         "issuing SLI_CONFIG_SPECIAL mailbox "
7052                                         "command\n");
7053                         return -ENOMEM;
7054                 }
7055 
7056                 /*
7057                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7058                  * two words to contain special data values and no other data.
7059                  */
7060                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7061                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7062                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7063                 if (rc != MBX_SUCCESS) {
7064                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7065                                         "0493 SLI_CONFIG_SPECIAL mailbox "
7066                                         "failed with status x%x\n",
7067                                         rc);
7068                         rc = -EIO;
7069                 }
7070                 mempool_free(mboxq, phba->mbox_mem_pool);
7071                 break;
7072         case LPFC_SLI_INTF_IF_TYPE_2:
7073         case LPFC_SLI_INTF_IF_TYPE_1:
7074         default:
7075                 break;
7076         }
7077         return rc;
7078 }
7079 
7080 /**
7081  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
7082  * @phba: pointer to lpfc hba data structure.
7083  *
7084  * This routine is invoked to check the user settable queue counts for EQs and
7085  * CQs. after this routine is called the counts will be set to valid values that
7086  * adhere to the constraints of the system's interrupt vectors and the port's
7087  * queue resources.
7088  *
7089  * Return codes
7090  *      0 - successful
7091  *      -ENOMEM - No available memory
7092  **/
7093 static int
7094 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7095 {
7096         int cfg_fcp_io_channel;
7097         uint32_t cpu;
7098         uint32_t i = 0;
7099         int fof_vectors = phba->cfg_fof ? 1 : 0;
7100 
7101         /*
7102          * Sanity check for configured queue parameters against the run-time
7103          * device parameters
7104          */
7105 
7106         /* Sanity check on HBA EQ parameters */
7107         cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
7108 
7109         /* It doesn't make sense to have more io channels then online CPUs */
7110         for_each_present_cpu(cpu) {
7111                 if (cpu_online(cpu))
7112                         i++;
7113         }
7114         phba->sli4_hba.num_online_cpu = i;
7115         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7116         phba->sli4_hba.curr_disp_cpu = 0;
7117 
7118         if (i < cfg_fcp_io_channel) {
7119                 lpfc_printf_log(phba,
7120                                 KERN_ERR, LOG_INIT,
7121                                 "3188 Reducing IO channels to match number of "
7122                                 "online CPUs: from %d to %d\n",
7123                                 cfg_fcp_io_channel, i);
7124                 cfg_fcp_io_channel = i;
7125         }
7126 
7127         if (cfg_fcp_io_channel + fof_vectors >
7128             phba->sli4_hba.max_cfg_param.max_eq) {
7129                 if (phba->sli4_hba.max_cfg_param.max_eq <
7130                     LPFC_FCP_IO_CHAN_MIN) {
7131                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7132                                         "2574 Not enough EQs (%d) from the "
7133                                         "pci function for supporting FCP "
7134                                         "EQs (%d)\n",
7135                                         phba->sli4_hba.max_cfg_param.max_eq,
7136                                         phba->cfg_fcp_io_channel);
7137                         goto out_error;
7138                 }
7139                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7140                                 "2575 Reducing IO channels to match number of "
7141                                 "available EQs: from %d to %d\n",
7142                                 cfg_fcp_io_channel,
7143                                 phba->sli4_hba.max_cfg_param.max_eq);
7144                 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7145                         fof_vectors;
7146         }
7147 
7148         /* The actual number of FCP event queues adopted */
7149         phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7150 
7151         /* Get EQ depth from module parameter, fake the default for now */
7152         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7153         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7154 
7155         /* Get CQ depth from module parameter, fake the default for now */
7156         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7157         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7158 
7159         return 0;
7160 out_error:
7161         return -ENOMEM;
7162 }
7163 
7164 /**
7165  * lpfc_sli4_queue_create - Create all the SLI4 queues
7166  * @phba: pointer to lpfc hba data structure.
7167  *
7168  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7169  * operation. For each SLI4 queue type, the parameters such as queue entry
7170  * count (queue depth) shall be taken from the module parameter. For now,
7171  * we just use some constant number as place holder.
7172  *
7173  * Return codes
7174  *      0 - successful
7175  *      -ENOMEM - No availble memory
7176  *      -EIO - The mailbox failed to complete successfully.
7177  **/
7178 int
7179 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7180 {
7181         struct lpfc_queue *qdesc;
7182         int idx;
7183 
7184         /*
7185          * Create HBA Record arrays.
7186          */
7187         if (!phba->cfg_fcp_io_channel)
7188                 return -ERANGE;
7189 
7190         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7191         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7192         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7193         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7194         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7195         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7196 
7197         phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
7198                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7199         if (!phba->sli4_hba.hba_eq) {
7200                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7201                         "2576 Failed allocate memory for "
7202                         "fast-path EQ record array\n");
7203                 goto out_error;
7204         }
7205 
7206         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7207                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7208         if (!phba->sli4_hba.fcp_cq) {
7209                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7210                                 "2577 Failed allocate memory for fast-path "
7211                                 "CQ record array\n");
7212                 goto out_error;
7213         }
7214 
7215         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7216                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7217         if (!phba->sli4_hba.fcp_wq) {
7218                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7219                                 "2578 Failed allocate memory for fast-path "
7220                                 "WQ record array\n");
7221                 goto out_error;
7222         }
7223 
7224         /*
7225          * Since the first EQ can have multiple CQs associated with it,
7226          * this array is used to quickly see if we have a FCP fast-path
7227          * CQ match.
7228          */
7229         phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7230                                          phba->cfg_fcp_io_channel), GFP_KERNEL);
7231         if (!phba->sli4_hba.fcp_cq_map) {
7232                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7233                                 "2545 Failed allocate memory for fast-path "
7234                                 "CQ map\n");
7235                 goto out_error;
7236         }
7237 
7238         /*
7239          * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
7240          * how many EQs to create.
7241          */
7242         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7243 
7244                 /* Create EQs */
7245                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7246                                               phba->sli4_hba.eq_ecount);
7247                 if (!qdesc) {
7248                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7249                                         "0497 Failed allocate EQ (%d)\n", idx);
7250                         goto out_error;
7251                 }
7252                 phba->sli4_hba.hba_eq[idx] = qdesc;
7253 
7254                 /* Create Fast Path FCP CQs */
7255                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7256                                               phba->sli4_hba.cq_ecount);
7257                 if (!qdesc) {
7258                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7259                                         "0499 Failed allocate fast-path FCP "
7260                                         "CQ (%d)\n", idx);
7261                         goto out_error;
7262                 }
7263                 phba->sli4_hba.fcp_cq[idx] = qdesc;
7264 
7265                 /* Create Fast Path FCP WQs */
7266                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7267                                               phba->sli4_hba.wq_ecount);
7268                 if (!qdesc) {
7269                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7270                                         "0503 Failed allocate fast-path FCP "
7271                                         "WQ (%d)\n", idx);
7272                         goto out_error;
7273                 }
7274                 phba->sli4_hba.fcp_wq[idx] = qdesc;
7275         }
7276 
7277 
7278         /*
7279          * Create Slow Path Completion Queues (CQs)
7280          */
7281 
7282         /* Create slow-path Mailbox Command Complete Queue */
7283         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7284                                       phba->sli4_hba.cq_ecount);
7285         if (!qdesc) {
7286                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7287                                 "0500 Failed allocate slow-path mailbox CQ\n");
7288                 goto out_error;
7289         }
7290         phba->sli4_hba.mbx_cq = qdesc;
7291 
7292         /* Create slow-path ELS Complete Queue */
7293         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7294                                       phba->sli4_hba.cq_ecount);
7295         if (!qdesc) {
7296                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7297                                 "0501 Failed allocate slow-path ELS CQ\n");
7298                 goto out_error;
7299         }
7300         phba->sli4_hba.els_cq = qdesc;
7301 
7302 
7303         /*
7304          * Create Slow Path Work Queues (WQs)
7305          */
7306 
7307         /* Create Mailbox Command Queue */
7308 
7309         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7310                                       phba->sli4_hba.mq_ecount);
7311         if (!qdesc) {
7312                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7313                                 "0505 Failed allocate slow-path MQ\n");
7314                 goto out_error;
7315         }
7316         phba->sli4_hba.mbx_wq = qdesc;
7317 
7318         /*
7319          * Create ELS Work Queues
7320          */
7321 
7322         /* Create slow-path ELS Work Queue */
7323         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7324                                       phba->sli4_hba.wq_ecount);
7325         if (!qdesc) {
7326                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7327                                 "0504 Failed allocate slow-path ELS WQ\n");
7328                 goto out_error;
7329         }
7330         phba->sli4_hba.els_wq = qdesc;
7331 
7332         /*
7333          * Create Receive Queue (RQ)
7334          */
7335 
7336         /* Create Receive Queue for header */
7337         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7338                                       phba->sli4_hba.rq_ecount);
7339         if (!qdesc) {
7340                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7341                                 "0506 Failed allocate receive HRQ\n");
7342                 goto out_error;
7343         }
7344         phba->sli4_hba.hdr_rq = qdesc;
7345 
7346         /* Create Receive Queue for data */
7347         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7348                                       phba->sli4_hba.rq_ecount);
7349         if (!qdesc) {
7350                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7351                                 "0507 Failed allocate receive DRQ\n");
7352                 goto out_error;
7353         }
7354         phba->sli4_hba.dat_rq = qdesc;
7355 
7356         /* Create the Queues needed for Flash Optimized Fabric operations */
7357         if (phba->cfg_fof)
7358                 lpfc_fof_queue_create(phba);
7359         return 0;
7360 
7361 out_error:
7362         lpfc_sli4_queue_destroy(phba);
7363         return -ENOMEM;
7364 }
7365 
7366 /**
7367  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7368  * @phba: pointer to lpfc hba data structure.
7369  *
7370  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7371  * operation.
7372  *
7373  * Return codes
7374  *      0 - successful
7375  *      -ENOMEM - No available memory
7376  *      -EIO - The mailbox failed to complete successfully.
7377  **/
7378 void
7379 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7380 {
7381         int idx;
7382 
7383         if (phba->cfg_fof)
7384                 lpfc_fof_queue_destroy(phba);
7385 
7386         if (phba->sli4_hba.hba_eq != NULL) {
7387                 /* Release HBA event queue */
7388                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7389                         if (phba->sli4_hba.hba_eq[idx] != NULL) {
7390                                 lpfc_sli4_queue_free(
7391                                         phba->sli4_hba.hba_eq[idx]);
7392                                 phba->sli4_hba.hba_eq[idx] = NULL;
7393                         }
7394                 }
7395                 kfree(phba->sli4_hba.hba_eq);
7396                 phba->sli4_hba.hba_eq = NULL;
7397         }
7398 
7399         if (phba->sli4_hba.fcp_cq != NULL) {
7400                 /* Release FCP completion queue */
7401                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7402                         if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7403                                 lpfc_sli4_queue_free(
7404                                         phba->sli4_hba.fcp_cq[idx]);
7405                                 phba->sli4_hba.fcp_cq[idx] = NULL;
7406                         }
7407                 }
7408                 kfree(phba->sli4_hba.fcp_cq);
7409                 phba->sli4_hba.fcp_cq = NULL;
7410         }
7411 
7412         if (phba->sli4_hba.fcp_wq != NULL) {
7413                 /* Release FCP work queue */
7414                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7415                         if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7416                                 lpfc_sli4_queue_free(
7417                                         phba->sli4_hba.fcp_wq[idx]);
7418                                 phba->sli4_hba.fcp_wq[idx] = NULL;
7419                         }
7420                 }
7421                 kfree(phba->sli4_hba.fcp_wq);