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

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_destroy_vport_work_array(phba, vports);
1190 
1191         if ((phba->link_state == LPFC_HBA_ERROR) ||
1192                 (phba->pport->load_flag & FC_UNLOADING) ||
1193                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1194                 return;
1195 
1196         spin_lock_irq(&phba->pport->work_port_lock);
1197 
1198         if (time_after(phba->last_completion_time +
1199                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1200                         jiffies)) {
1201                 spin_unlock_irq(&phba->pport->work_port_lock);
1202                 if (!phba->hb_outstanding)
1203                         mod_timer(&phba->hb_tmofunc,
1204                                 jiffies +
1205                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1206                 else
1207                         mod_timer(&phba->hb_tmofunc,
1208                                 jiffies +
1209                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1210                 return;
1211         }
1212         spin_unlock_irq(&phba->pport->work_port_lock);
1213 
1214         if (phba->elsbuf_cnt &&
1215                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1216                 spin_lock_irq(&phba->hbalock);
1217                 list_splice_init(&phba->elsbuf, &completions);
1218                 phba->elsbuf_cnt = 0;
1219                 phba->elsbuf_prev_cnt = 0;
1220                 spin_unlock_irq(&phba->hbalock);
1221 
1222                 while (!list_empty(&completions)) {
1223                         list_remove_head(&completions, buf_ptr,
1224                                 struct lpfc_dmabuf, list);
1225                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1226                         kfree(buf_ptr);
1227                 }
1228         }
1229         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1230 
1231         /* If there is no heart beat outstanding, issue a heartbeat command */
1232         if (phba->cfg_enable_hba_heartbeat) {
1233                 if (!phba->hb_outstanding) {
1234                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1235                                 (list_empty(&psli->mboxq))) {
1236                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1237                                                         GFP_KERNEL);
1238                                 if (!pmboxq) {
1239                                         mod_timer(&phba->hb_tmofunc,
1240                                                  jiffies +
1241                                                  msecs_to_jiffies(1000 *
1242                                                  LPFC_HB_MBOX_INTERVAL));
1243                                         return;
1244                                 }
1245 
1246                                 lpfc_heart_beat(phba, pmboxq);
1247                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1248                                 pmboxq->vport = phba->pport;
1249                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1250                                                 MBX_NOWAIT);
1251 
1252                                 if (retval != MBX_BUSY &&
1253                                         retval != MBX_SUCCESS) {
1254                                         mempool_free(pmboxq,
1255                                                         phba->mbox_mem_pool);
1256                                         mod_timer(&phba->hb_tmofunc,
1257                                                 jiffies +
1258                                                 msecs_to_jiffies(1000 *
1259                                                 LPFC_HB_MBOX_INTERVAL));
1260                                         return;
1261                                 }
1262                                 phba->skipped_hb = 0;
1263                                 phba->hb_outstanding = 1;
1264                         } else if (time_before_eq(phba->last_completion_time,
1265                                         phba->skipped_hb)) {
1266                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1267                                         "2857 Last completion time not "
1268                                         " updated in %d ms\n",
1269                                         jiffies_to_msecs(jiffies
1270                                                  - phba->last_completion_time));
1271                         } else
1272                                 phba->skipped_hb = jiffies;
1273 
1274                         mod_timer(&phba->hb_tmofunc,
1275                                  jiffies +
1276                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1277                         return;
1278                 } else {
1279                         /*
1280                         * If heart beat timeout called with hb_outstanding set
1281                         * we need to give the hb mailbox cmd a chance to
1282                         * complete or TMO.
1283                         */
1284                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1285                                         "0459 Adapter heartbeat still out"
1286                                         "standing:last compl time was %d ms.\n",
1287                                         jiffies_to_msecs(jiffies
1288                                                  - phba->last_completion_time));
1289                         mod_timer(&phba->hb_tmofunc,
1290                                 jiffies +
1291                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1292                 }
1293         }
1294 }
1295 
1296 /**
1297  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1298  * @phba: pointer to lpfc hba data structure.
1299  *
1300  * This routine is called to bring the HBA offline when HBA hardware error
1301  * other than Port Error 6 has been detected.
1302  **/
1303 static void
1304 lpfc_offline_eratt(struct lpfc_hba *phba)
1305 {
1306         struct lpfc_sli   *psli = &phba->sli;
1307 
1308         spin_lock_irq(&phba->hbalock);
1309         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1310         spin_unlock_irq(&phba->hbalock);
1311         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1312 
1313         lpfc_offline(phba);
1314         lpfc_reset_barrier(phba);
1315         spin_lock_irq(&phba->hbalock);
1316         lpfc_sli_brdreset(phba);
1317         spin_unlock_irq(&phba->hbalock);
1318         lpfc_hba_down_post(phba);
1319         lpfc_sli_brdready(phba, HS_MBRDY);
1320         lpfc_unblock_mgmt_io(phba);
1321         phba->link_state = LPFC_HBA_ERROR;
1322         return;
1323 }
1324 
1325 /**
1326  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1327  * @phba: pointer to lpfc hba data structure.
1328  *
1329  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1330  * other than Port Error 6 has been detected.
1331  **/
1332 void
1333 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1334 {
1335         spin_lock_irq(&phba->hbalock);
1336         phba->link_state = LPFC_HBA_ERROR;
1337         spin_unlock_irq(&phba->hbalock);
1338 
1339         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1340         lpfc_offline(phba);
1341         lpfc_hba_down_post(phba);
1342         lpfc_unblock_mgmt_io(phba);
1343 }
1344 
1345 /**
1346  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1347  * @phba: pointer to lpfc hba data structure.
1348  *
1349  * This routine is invoked to handle the deferred HBA hardware error
1350  * conditions. This type of error is indicated by HBA by setting ER1
1351  * and another ER bit in the host status register. The driver will
1352  * wait until the ER1 bit clears before handling the error condition.
1353  **/
1354 static void
1355 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1356 {
1357         uint32_t old_host_status = phba->work_hs;
1358         struct lpfc_sli *psli = &phba->sli;
1359 
1360         /* If the pci channel is offline, ignore possible errors,
1361          * since we cannot communicate with the pci card anyway.
1362          */
1363         if (pci_channel_offline(phba->pcidev)) {
1364                 spin_lock_irq(&phba->hbalock);
1365                 phba->hba_flag &= ~DEFER_ERATT;
1366                 spin_unlock_irq(&phba->hbalock);
1367                 return;
1368         }
1369 
1370         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1371                 "0479 Deferred Adapter Hardware Error "
1372                 "Data: x%x x%x x%x\n",
1373                 phba->work_hs,
1374                 phba->work_status[0], phba->work_status[1]);
1375 
1376         spin_lock_irq(&phba->hbalock);
1377         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1378         spin_unlock_irq(&phba->hbalock);
1379 
1380 
1381         /*
1382          * Firmware stops when it triggred erratt. That could cause the I/Os
1383          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1384          * SCSI layer retry it after re-establishing link.
1385          */
1386         lpfc_sli_abort_fcp_rings(phba);
1387 
1388         /*
1389          * There was a firmware error. Take the hba offline and then
1390          * attempt to restart it.
1391          */
1392         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1393         lpfc_offline(phba);
1394 
1395         /* Wait for the ER1 bit to clear.*/
1396         while (phba->work_hs & HS_FFER1) {
1397                 msleep(100);
1398                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1399                         phba->work_hs = UNPLUG_ERR ;
1400                         break;
1401                 }
1402                 /* If driver is unloading let the worker thread continue */
1403                 if (phba->pport->load_flag & FC_UNLOADING) {
1404                         phba->work_hs = 0;
1405                         break;
1406                 }
1407         }
1408 
1409         /*
1410          * This is to ptrotect against a race condition in which
1411          * first write to the host attention register clear the
1412          * host status register.
1413          */
1414         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1415                 phba->work_hs = old_host_status & ~HS_FFER1;
1416 
1417         spin_lock_irq(&phba->hbalock);
1418         phba->hba_flag &= ~DEFER_ERATT;
1419         spin_unlock_irq(&phba->hbalock);
1420         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1421         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1422 }
1423 
1424 static void
1425 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1426 {
1427         struct lpfc_board_event_header board_event;
1428         struct Scsi_Host *shost;
1429 
1430         board_event.event_type = FC_REG_BOARD_EVENT;
1431         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1432         shost = lpfc_shost_from_vport(phba->pport);
1433         fc_host_post_vendor_event(shost, fc_get_event_number(),
1434                                   sizeof(board_event),
1435                                   (char *) &board_event,
1436                                   LPFC_NL_VENDOR_ID);
1437 }
1438 
1439 /**
1440  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1441  * @phba: pointer to lpfc hba data structure.
1442  *
1443  * This routine is invoked to handle the following HBA hardware error
1444  * conditions:
1445  * 1 - HBA error attention interrupt
1446  * 2 - DMA ring index out of range
1447  * 3 - Mailbox command came back as unknown
1448  **/
1449 static void
1450 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1451 {
1452         struct lpfc_vport *vport = phba->pport;
1453         struct lpfc_sli   *psli = &phba->sli;
1454         uint32_t event_data;
1455         unsigned long temperature;
1456         struct temp_event temp_event_data;
1457         struct Scsi_Host  *shost;
1458 
1459         /* If the pci channel is offline, ignore possible errors,
1460          * since we cannot communicate with the pci card anyway.
1461          */
1462         if (pci_channel_offline(phba->pcidev)) {
1463                 spin_lock_irq(&phba->hbalock);
1464                 phba->hba_flag &= ~DEFER_ERATT;
1465                 spin_unlock_irq(&phba->hbalock);
1466                 return;
1467         }
1468 
1469         /* If resets are disabled then leave the HBA alone and return */
1470         if (!phba->cfg_enable_hba_reset)
1471                 return;
1472 
1473         /* Send an internal error event to mgmt application */
1474         lpfc_board_errevt_to_mgmt(phba);
1475 
1476         if (phba->hba_flag & DEFER_ERATT)
1477                 lpfc_handle_deferred_eratt(phba);
1478 
1479         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1480                 if (phba->work_hs & HS_FFER6)
1481                         /* Re-establishing Link */
1482                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1483                                         "1301 Re-establishing Link "
1484                                         "Data: x%x x%x x%x\n",
1485                                         phba->work_hs, phba->work_status[0],
1486                                         phba->work_status[1]);
1487                 if (phba->work_hs & HS_FFER8)
1488                         /* Device Zeroization */
1489                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1490                                         "2861 Host Authentication device "
1491                                         "zeroization Data:x%x x%x x%x\n",
1492                                         phba->work_hs, phba->work_status[0],
1493                                         phba->work_status[1]);
1494 
1495                 spin_lock_irq(&phba->hbalock);
1496                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1497                 spin_unlock_irq(&phba->hbalock);
1498 
1499                 /*
1500                 * Firmware stops when it triggled erratt with HS_FFER6.
1501                 * That could cause the I/Os dropped by the firmware.
1502                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1503                 * retry it after re-establishing link.
1504                 */
1505                 lpfc_sli_abort_fcp_rings(phba);
1506 
1507                 /*
1508                  * There was a firmware error.  Take the hba offline and then
1509                  * attempt to restart it.
1510                  */
1511                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1512                 lpfc_offline(phba);
1513                 lpfc_sli_brdrestart(phba);
1514                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1515                         lpfc_unblock_mgmt_io(phba);
1516                         return;
1517                 }
1518                 lpfc_unblock_mgmt_io(phba);
1519         } else if (phba->work_hs & HS_CRIT_TEMP) {
1520                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1521                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1522                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1523                 temp_event_data.data = (uint32_t)temperature;
1524 
1525                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1526                                 "0406 Adapter maximum temperature exceeded "
1527                                 "(%ld), taking this port offline "
1528                                 "Data: x%x x%x x%x\n",
1529                                 temperature, phba->work_hs,
1530                                 phba->work_status[0], phba->work_status[1]);
1531 
1532                 shost = lpfc_shost_from_vport(phba->pport);
1533                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1534                                           sizeof(temp_event_data),
1535                                           (char *) &temp_event_data,
1536                                           SCSI_NL_VID_TYPE_PCI
1537                                           | PCI_VENDOR_ID_EMULEX);
1538 
1539                 spin_lock_irq(&phba->hbalock);
1540                 phba->over_temp_state = HBA_OVER_TEMP;
1541                 spin_unlock_irq(&phba->hbalock);
1542                 lpfc_offline_eratt(phba);
1543 
1544         } else {
1545                 /* The if clause above forces this code path when the status
1546                  * failure is a value other than FFER6. Do not call the offline
1547                  * twice. This is the adapter hardware error path.
1548                  */
1549                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1550                                 "0457 Adapter Hardware Error "
1551                                 "Data: x%x x%x x%x\n",
1552                                 phba->work_hs,
1553                                 phba->work_status[0], phba->work_status[1]);
1554 
1555                 event_data = FC_REG_DUMP_EVENT;
1556                 shost = lpfc_shost_from_vport(vport);
1557                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1558                                 sizeof(event_data), (char *) &event_data,
1559                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1560 
1561                 lpfc_offline_eratt(phba);
1562         }
1563         return;
1564 }
1565 
1566 /**
1567  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1568  * @phba: pointer to lpfc hba data structure.
1569  * @mbx_action: flag for mailbox shutdown action.
1570  *
1571  * This routine is invoked to perform an SLI4 port PCI function reset in
1572  * response to port status register polling attention. It waits for port
1573  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1574  * During this process, interrupt vectors are freed and later requested
1575  * for handling possible port resource change.
1576  **/
1577 static int
1578 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1579                             bool en_rn_msg)
1580 {
1581         int rc;
1582         uint32_t intr_mode;
1583 
1584         /*
1585          * On error status condition, driver need to wait for port
1586          * ready before performing reset.
1587          */
1588         rc = lpfc_sli4_pdev_status_reg_wait(phba);
1589         if (!rc) {
1590                 /* need reset: attempt for port recovery */
1591                 if (en_rn_msg)
1592                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1593                                         "2887 Reset Needed: Attempting Port "
1594                                         "Recovery...\n");
1595                 lpfc_offline_prep(phba, mbx_action);
1596                 lpfc_offline(phba);
1597                 /* release interrupt for possible resource change */
1598                 lpfc_sli4_disable_intr(phba);
1599                 lpfc_sli_brdrestart(phba);
1600                 /* request and enable interrupt */
1601                 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1602                 if (intr_mode == LPFC_INTR_ERROR) {
1603                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1604                                         "3175 Failed to enable interrupt\n");
1605                         return -EIO;
1606                 } else {
1607                         phba->intr_mode = intr_mode;
1608                 }
1609                 rc = lpfc_online(phba);
1610                 if (rc == 0)
1611                         lpfc_unblock_mgmt_io(phba);
1612         }
1613         return rc;
1614 }
1615 
1616 /**
1617  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1618  * @phba: pointer to lpfc hba data structure.
1619  *
1620  * This routine is invoked to handle the SLI4 HBA hardware error attention
1621  * conditions.
1622  **/
1623 static void
1624 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1625 {
1626         struct lpfc_vport *vport = phba->pport;
1627         uint32_t event_data;
1628         struct Scsi_Host *shost;
1629         uint32_t if_type;
1630         struct lpfc_register portstat_reg = {0};
1631         uint32_t reg_err1, reg_err2;
1632         uint32_t uerrlo_reg, uemasklo_reg;
1633         uint32_t pci_rd_rc1, pci_rd_rc2;
1634         bool en_rn_msg = true;
1635         struct temp_event temp_event_data;
1636         int rc;
1637 
1638         /* If the pci channel is offline, ignore possible errors, since
1639          * we cannot communicate with the pci card anyway.
1640          */
1641         if (pci_channel_offline(phba->pcidev))
1642                 return;
1643 
1644         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1645         switch (if_type) {
1646         case LPFC_SLI_INTF_IF_TYPE_0:
1647                 pci_rd_rc1 = lpfc_readl(
1648                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1649                                 &uerrlo_reg);
1650                 pci_rd_rc2 = lpfc_readl(
1651                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1652                                 &uemasklo_reg);
1653                 /* consider PCI bus read error as pci_channel_offline */
1654                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1655                         return;
1656                 lpfc_sli4_offline_eratt(phba);
1657                 break;
1658 
1659         case LPFC_SLI_INTF_IF_TYPE_2:
1660                 pci_rd_rc1 = lpfc_readl(
1661                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1662                                 &portstat_reg.word0);
1663                 /* consider PCI bus read error as pci_channel_offline */
1664                 if (pci_rd_rc1 == -EIO) {
1665                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1666                                 "3151 PCI bus read access failure: x%x\n",
1667                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1668                         return;
1669                 }
1670                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1671                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1672                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1673                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1674                                 "2889 Port Overtemperature event, "
1675                                 "taking port offline Data: x%x x%x\n",
1676                                 reg_err1, reg_err2);
1677 
1678                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1679                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1680                         temp_event_data.data = 0xFFFFFFFF;
1681 
1682                         shost = lpfc_shost_from_vport(phba->pport);
1683                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1684                                                   sizeof(temp_event_data),
1685                                                   (char *)&temp_event_data,
1686                                                   SCSI_NL_VID_TYPE_PCI
1687                                                   | PCI_VENDOR_ID_EMULEX);
1688 
1689                         spin_lock_irq(&phba->hbalock);
1690                         phba->over_temp_state = HBA_OVER_TEMP;
1691                         spin_unlock_irq(&phba->hbalock);
1692                         lpfc_sli4_offline_eratt(phba);
1693                         return;
1694                 }
1695                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1696                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1697                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1698                                         "3143 Port Down: Firmware Update "
1699                                         "Detected\n");
1700                         en_rn_msg = false;
1701                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1702                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1703                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1704                                         "3144 Port Down: Debug Dump\n");
1705                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1706                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1707                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1708                                         "3145 Port Down: Provisioning\n");
1709 
1710                 /* If resets are disabled then leave the HBA alone and return */
1711                 if (!phba->cfg_enable_hba_reset)
1712                         return;
1713 
1714                 /* Check port status register for function reset */
1715                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1716                                 en_rn_msg);
1717                 if (rc == 0) {
1718                         /* don't report event on forced debug dump */
1719                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1720                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1721                                 return;
1722                         else
1723                                 break;
1724                 }
1725                 /* fall through for not able to recover */
1726                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1727                                 "3152 Unrecoverable error, bring the port "
1728                                 "offline\n");
1729                 lpfc_sli4_offline_eratt(phba);
1730                 break;
1731         case LPFC_SLI_INTF_IF_TYPE_1:
1732         default:
1733                 break;
1734         }
1735         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1736                         "3123 Report dump event to upper layer\n");
1737         /* Send an internal error event to mgmt application */
1738         lpfc_board_errevt_to_mgmt(phba);
1739 
1740         event_data = FC_REG_DUMP_EVENT;
1741         shost = lpfc_shost_from_vport(vport);
1742         fc_host_post_vendor_event(shost, fc_get_event_number(),
1743                                   sizeof(event_data), (char *) &event_data,
1744                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1745 }
1746 
1747 /**
1748  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1749  * @phba: pointer to lpfc HBA data structure.
1750  *
1751  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1752  * routine from the API jump table function pointer from the lpfc_hba struct.
1753  *
1754  * Return codes
1755  *   0 - success.
1756  *   Any other value - error.
1757  **/
1758 void
1759 lpfc_handle_eratt(struct lpfc_hba *phba)
1760 {
1761         (*phba->lpfc_handle_eratt)(phba);
1762 }
1763 
1764 /**
1765  * lpfc_handle_latt - The HBA link event handler
1766  * @phba: pointer to lpfc hba data structure.
1767  *
1768  * This routine is invoked from the worker thread to handle a HBA host
1769  * attention link event.
1770  **/
1771 void
1772 lpfc_handle_latt(struct lpfc_hba *phba)
1773 {
1774         struct lpfc_vport *vport = phba->pport;
1775         struct lpfc_sli   *psli = &phba->sli;
1776         LPFC_MBOXQ_t *pmb;
1777         volatile uint32_t control;
1778         struct lpfc_dmabuf *mp;
1779         int rc = 0;
1780 
1781         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1782         if (!pmb) {
1783                 rc = 1;
1784                 goto lpfc_handle_latt_err_exit;
1785         }
1786 
1787         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1788         if (!mp) {
1789                 rc = 2;
1790                 goto lpfc_handle_latt_free_pmb;
1791         }
1792 
1793         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1794         if (!mp->virt) {
1795                 rc = 3;
1796                 goto lpfc_handle_latt_free_mp;
1797         }
1798 
1799         /* Cleanup any outstanding ELS commands */
1800         lpfc_els_flush_all_cmd(phba);
1801 
1802         psli->slistat.link_event++;
1803         lpfc_read_topology(phba, pmb, mp);
1804         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1805         pmb->vport = vport;
1806         /* Block ELS IOCBs until we have processed this mbox command */
1807         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1808         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1809         if (rc == MBX_NOT_FINISHED) {
1810                 rc = 4;
1811                 goto lpfc_handle_latt_free_mbuf;
1812         }
1813 
1814         /* Clear Link Attention in HA REG */
1815         spin_lock_irq(&phba->hbalock);
1816         writel(HA_LATT, phba->HAregaddr);
1817         readl(phba->HAregaddr); /* flush */
1818         spin_unlock_irq(&phba->hbalock);
1819 
1820         return;
1821 
1822 lpfc_handle_latt_free_mbuf:
1823         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1824         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1825 lpfc_handle_latt_free_mp:
1826         kfree(mp);
1827 lpfc_handle_latt_free_pmb:
1828         mempool_free(pmb, phba->mbox_mem_pool);
1829 lpfc_handle_latt_err_exit:
1830         /* Enable Link attention interrupts */
1831         spin_lock_irq(&phba->hbalock);
1832         psli->sli_flag |= LPFC_PROCESS_LA;
1833         control = readl(phba->HCregaddr);
1834         control |= HC_LAINT_ENA;
1835         writel(control, phba->HCregaddr);
1836         readl(phba->HCregaddr); /* flush */
1837 
1838         /* Clear Link Attention in HA REG */
1839         writel(HA_LATT, phba->HAregaddr);
1840         readl(phba->HAregaddr); /* flush */
1841         spin_unlock_irq(&phba->hbalock);
1842         lpfc_linkdown(phba);
1843         phba->link_state = LPFC_HBA_ERROR;
1844 
1845         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1846                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1847 
1848         return;
1849 }
1850 
1851 /**
1852  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1853  * @phba: pointer to lpfc hba data structure.
1854  * @vpd: pointer to the vital product data.
1855  * @len: length of the vital product data in bytes.
1856  *
1857  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1858  * an array of characters. In this routine, the ModelName, ProgramType, and
1859  * ModelDesc, etc. fields of the phba data structure will be populated.
1860  *
1861  * Return codes
1862  *   0 - pointer to the VPD passed in is NULL
1863  *   1 - success
1864  **/
1865 int
1866 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1867 {
1868         uint8_t lenlo, lenhi;
1869         int Length;
1870         int i, j;
1871         int finished = 0;
1872         int index = 0;
1873 
1874         if (!vpd)
1875                 return 0;
1876 
1877         /* Vital Product */
1878         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1879                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1880                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1881                         (uint32_t) vpd[3]);
1882         while (!finished && (index < (len - 4))) {
1883                 switch (vpd[index]) {
1884                 case 0x82:
1885                 case 0x91:
1886                         index += 1;
1887                         lenlo = vpd[index];
1888                         index += 1;
1889                         lenhi = vpd[index];
1890                         index += 1;
1891                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1892                         index += i;
1893                         break;
1894                 case 0x90:
1895                         index += 1;
1896                         lenlo = vpd[index];
1897                         index += 1;
1898                         lenhi = vpd[index];
1899                         index += 1;
1900                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1901                         if (Length > len - index)
1902                                 Length = len - index;
1903                         while (Length > 0) {
1904                         /* Look for Serial Number */
1905                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1906                                 index += 2;
1907                                 i = vpd[index];
1908                                 index += 1;
1909                                 j = 0;
1910                                 Length -= (3+i);
1911                                 while(i--) {
1912                                         phba->SerialNumber[j++] = vpd[index++];
1913                                         if (j == 31)
1914                                                 break;
1915                                 }
1916                                 phba->SerialNumber[j] = 0;
1917                                 continue;
1918                         }
1919                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1920                                 phba->vpd_flag |= VPD_MODEL_DESC;
1921                                 index += 2;
1922                                 i = vpd[index];
1923                                 index += 1;
1924                                 j = 0;
1925                                 Length -= (3+i);
1926                                 while(i--) {
1927                                         phba->ModelDesc[j++] = vpd[index++];
1928                                         if (j == 255)
1929                                                 break;
1930                                 }
1931                                 phba->ModelDesc[j] = 0;
1932                                 continue;
1933                         }
1934                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1935                                 phba->vpd_flag |= VPD_MODEL_NAME;
1936                                 index += 2;
1937                                 i = vpd[index];
1938                                 index += 1;
1939                                 j = 0;
1940                                 Length -= (3+i);
1941                                 while(i--) {
1942                                         phba->ModelName[j++] = vpd[index++];
1943                                         if (j == 79)
1944                                                 break;
1945                                 }
1946                                 phba->ModelName[j] = 0;
1947                                 continue;
1948                         }
1949                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1950                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1951                                 index += 2;
1952                                 i = vpd[index];
1953                                 index += 1;
1954                                 j = 0;
1955                                 Length -= (3+i);
1956                                 while(i--) {
1957                                         phba->ProgramType[j++] = vpd[index++];
1958                                         if (j == 255)
1959                                                 break;
1960                                 }
1961                                 phba->ProgramType[j] = 0;
1962                                 continue;
1963                         }
1964                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1965                                 phba->vpd_flag |= VPD_PORT;
1966                                 index += 2;
1967                                 i = vpd[index];
1968                                 index += 1;
1969                                 j = 0;
1970                                 Length -= (3+i);
1971                                 while(i--) {
1972                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1973                                             (phba->sli4_hba.pport_name_sta ==
1974                                              LPFC_SLI4_PPNAME_GET)) {
1975                                                 j++;
1976                                                 index++;
1977                                         } else
1978                                                 phba->Port[j++] = vpd[index++];
1979                                         if (j == 19)
1980                                                 break;
1981                                 }
1982                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1983                                     (phba->sli4_hba.pport_name_sta ==
1984                                      LPFC_SLI4_PPNAME_NON))
1985                                         phba->Port[j] = 0;
1986                                 continue;
1987                         }
1988                         else {
1989                                 index += 2;
1990                                 i = vpd[index];
1991                                 index += 1;
1992                                 index += i;
1993                                 Length -= (3 + i);
1994                         }
1995                 }
1996                 finished = 0;
1997                 break;
1998                 case 0x78:
1999                         finished = 1;
2000                         break;
2001                 default:
2002                         index ++;
2003                         break;
2004                 }
2005         }
2006 
2007         return(1);
2008 }
2009 
2010 /**
2011  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2012  * @phba: pointer to lpfc hba data structure.
2013  * @mdp: pointer to the data structure to hold the derived model name.
2014  * @descp: pointer to the data structure to hold the derived description.
2015  *
2016  * This routine retrieves HBA's description based on its registered PCI device
2017  * ID. The @descp passed into this function points to an array of 256 chars. It
2018  * shall be returned with the model name, maximum speed, and the host bus type.
2019  * The @mdp passed into this function points to an array of 80 chars. When the
2020  * function returns, the @mdp will be filled with the model name.
2021  **/
2022 static void
2023 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2024 {
2025         lpfc_vpd_t *vp;
2026         uint16_t dev_id = phba->pcidev->device;
2027         int max_speed;
2028         int GE = 0;
2029         int oneConnect = 0; /* default is not a oneConnect */
2030         struct {
2031                 char *name;
2032                 char *bus;
2033                 char *function;
2034         } m = {"<Unknown>", "", ""};
2035 
2036         if (mdp && mdp[0] != '\0'
2037                 && descp && descp[0] != '\0')
2038                 return;
2039 
2040         if (phba->lmt & LMT_32Gb)
2041                 max_speed = 32;
2042         else if (phba->lmt & LMT_16Gb)
2043                 max_speed = 16;
2044         else if (phba->lmt & LMT_10Gb)
2045                 max_speed = 10;
2046         else if (phba->lmt & LMT_8Gb)
2047                 max_speed = 8;
2048         else if (phba->lmt & LMT_4Gb)
2049                 max_speed = 4;
2050         else if (phba->lmt & LMT_2Gb)
2051                 max_speed = 2;
2052         else if (phba->lmt & LMT_1Gb)
2053                 max_speed = 1;
2054         else
2055                 max_speed = 0;
2056 
2057         vp = &phba->vpd;
2058 
2059         switch (dev_id) {
2060         case PCI_DEVICE_ID_FIREFLY:
2061                 m = (typeof(m)){"LP6000", "PCI",
2062                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2063                 break;
2064         case PCI_DEVICE_ID_SUPERFLY:
2065                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2066                         m = (typeof(m)){"LP7000", "PCI", ""};
2067                 else
2068                         m = (typeof(m)){"LP7000E", "PCI", ""};
2069                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2070                 break;
2071         case PCI_DEVICE_ID_DRAGONFLY:
2072                 m = (typeof(m)){"LP8000", "PCI",
2073                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2074                 break;
2075         case PCI_DEVICE_ID_CENTAUR:
2076                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2077                         m = (typeof(m)){"LP9002", "PCI", ""};
2078                 else
2079                         m = (typeof(m)){"LP9000", "PCI", ""};
2080                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2081                 break;
2082         case PCI_DEVICE_ID_RFLY:
2083                 m = (typeof(m)){"LP952", "PCI",
2084                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2085                 break;
2086         case PCI_DEVICE_ID_PEGASUS:
2087                 m = (typeof(m)){"LP9802", "PCI-X",
2088                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2089                 break;
2090         case PCI_DEVICE_ID_THOR:
2091                 m = (typeof(m)){"LP10000", "PCI-X",
2092                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2093                 break;
2094         case PCI_DEVICE_ID_VIPER:
2095                 m = (typeof(m)){"LPX1000",  "PCI-X",
2096                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2097                 break;
2098         case PCI_DEVICE_ID_PFLY:
2099                 m = (typeof(m)){"LP982", "PCI-X",
2100                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2101                 break;
2102         case PCI_DEVICE_ID_TFLY:
2103                 m = (typeof(m)){"LP1050", "PCI-X",
2104                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2105                 break;
2106         case PCI_DEVICE_ID_HELIOS:
2107                 m = (typeof(m)){"LP11000", "PCI-X2",
2108                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2109                 break;
2110         case PCI_DEVICE_ID_HELIOS_SCSP:
2111                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2112                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2113                 break;
2114         case PCI_DEVICE_ID_HELIOS_DCSP:
2115                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2116                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2117                 break;
2118         case PCI_DEVICE_ID_NEPTUNE:
2119                 m = (typeof(m)){"LPe1000", "PCIe",
2120                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2121                 break;
2122         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2123                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2124                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2125                 break;
2126         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2127                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2128                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2129                 break;
2130         case PCI_DEVICE_ID_BMID:
2131                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2132                 break;
2133         case PCI_DEVICE_ID_BSMB:
2134                 m = (typeof(m)){"LP111", "PCI-X2",
2135                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2136                 break;
2137         case PCI_DEVICE_ID_ZEPHYR:
2138                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2139                 break;
2140         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2141                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2142                 break;
2143         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2144                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2145                 GE = 1;
2146                 break;
2147         case PCI_DEVICE_ID_ZMID:
2148                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2149                 break;
2150         case PCI_DEVICE_ID_ZSMB:
2151                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2152                 break;
2153         case PCI_DEVICE_ID_LP101:
2154                 m = (typeof(m)){"LP101", "PCI-X",
2155                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2156                 break;
2157         case PCI_DEVICE_ID_LP10000S:
2158                 m = (typeof(m)){"LP10000-S", "PCI",
2159                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2160                 break;
2161         case PCI_DEVICE_ID_LP11000S:
2162                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2163                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2164                 break;
2165         case PCI_DEVICE_ID_LPE11000S:
2166                 m = (typeof(m)){"LPe11000-S", "PCIe",
2167                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2168                 break;
2169         case PCI_DEVICE_ID_SAT:
2170                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2171                 break;
2172         case PCI_DEVICE_ID_SAT_MID:
2173                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2174                 break;
2175         case PCI_DEVICE_ID_SAT_SMB:
2176                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2177                 break;
2178         case PCI_DEVICE_ID_SAT_DCSP:
2179                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2180                 break;
2181         case PCI_DEVICE_ID_SAT_SCSP:
2182                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2183                 break;
2184         case PCI_DEVICE_ID_SAT_S:
2185                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2186                 break;
2187         case PCI_DEVICE_ID_HORNET:
2188                 m = (typeof(m)){"LP21000", "PCIe",
2189                                 "Obsolete, Unsupported FCoE Adapter"};
2190                 GE = 1;
2191                 break;
2192         case PCI_DEVICE_ID_PROTEUS_VF:
2193                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2194                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2195                 break;
2196         case PCI_DEVICE_ID_PROTEUS_PF:
2197                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2198                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2199                 break;
2200         case PCI_DEVICE_ID_PROTEUS_S:
2201                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2202                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2203                 break;
2204         case PCI_DEVICE_ID_TIGERSHARK:
2205                 oneConnect = 1;
2206                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2207                 break;
2208         case PCI_DEVICE_ID_TOMCAT:
2209                 oneConnect = 1;
2210                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2211                 break;
2212         case PCI_DEVICE_ID_FALCON:
2213                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2214                                 "EmulexSecure Fibre"};
2215                 break;
2216         case PCI_DEVICE_ID_BALIUS:
2217                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2218                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2219                 break;
2220         case PCI_DEVICE_ID_LANCER_FC:
2221                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2222                 break;
2223         case PCI_DEVICE_ID_LANCER_FC_VF:
2224                 m = (typeof(m)){"LPe16000", "PCIe",
2225                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2226                 break;
2227         case PCI_DEVICE_ID_LANCER_FCOE:
2228                 oneConnect = 1;
2229                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2230                 break;
2231         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2232                 oneConnect = 1;
2233                 m = (typeof(m)){"OCe15100", "PCIe",
2234                                 "Obsolete, Unsupported FCoE"};
2235                 break;
2236         case PCI_DEVICE_ID_LANCER_G6_FC:
2237                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2238                 break;
2239         case PCI_DEVICE_ID_SKYHAWK:
2240         case PCI_DEVICE_ID_SKYHAWK_VF:
2241                 oneConnect = 1;
2242                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2243                 break;
2244         default:
2245                 m = (typeof(m)){"Unknown", "", ""};
2246                 break;
2247         }
2248 
2249         if (mdp && mdp[0] == '\0')
2250                 snprintf(mdp, 79,"%s", m.name);
2251         /*
2252          * oneConnect hba requires special processing, they are all initiators
2253          * and we put the port number on the end
2254          */
2255         if (descp && descp[0] == '\0') {
2256                 if (oneConnect)
2257                         snprintf(descp, 255,
2258                                 "Emulex OneConnect %s, %s Initiator %s",
2259                                 m.name, m.function,
2260                                 phba->Port);
2261                 else if (max_speed == 0)
2262                         snprintf(descp, 255,
2263                                 "Emulex %s %s %s",
2264                                 m.name, m.bus, m.function);
2265                 else
2266                         snprintf(descp, 255,
2267                                 "Emulex %s %d%s %s %s",
2268                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2269                                 m.bus, m.function);
2270         }
2271 }
2272 
2273 /**
2274  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2275  * @phba: pointer to lpfc hba data structure.
2276  * @pring: pointer to a IOCB ring.
2277  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2278  *
2279  * This routine posts a given number of IOCBs with the associated DMA buffer
2280  * descriptors specified by the cnt argument to the given IOCB ring.
2281  *
2282  * Return codes
2283  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2284  **/
2285 int
2286 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2287 {
2288         IOCB_t *icmd;
2289         struct lpfc_iocbq *iocb;
2290         struct lpfc_dmabuf *mp1, *mp2;
2291 
2292         cnt += pring->missbufcnt;
2293 
2294         /* While there are buffers to post */
2295         while (cnt > 0) {
2296                 /* Allocate buffer for  command iocb */
2297                 iocb = lpfc_sli_get_iocbq(phba);
2298                 if (iocb == NULL) {
2299                         pring->missbufcnt = cnt;
2300                         return cnt;
2301                 }
2302                 icmd = &iocb->iocb;
2303 
2304                 /* 2 buffers can be posted per command */
2305                 /* Allocate buffer to post */
2306                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2307                 if (mp1)
2308                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2309                 if (!mp1 || !mp1->virt) {
2310                         kfree(mp1);
2311                         lpfc_sli_release_iocbq(phba, iocb);
2312                         pring->missbufcnt = cnt;
2313                         return cnt;
2314                 }
2315 
2316                 INIT_LIST_HEAD(&mp1->list);
2317                 /* Allocate buffer to post */
2318                 if (cnt > 1) {
2319                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2320                         if (mp2)
2321                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2322                                                             &mp2->phys);
2323                         if (!mp2 || !mp2->virt) {
2324                                 kfree(mp2);
2325                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2326                                 kfree(mp1);
2327                                 lpfc_sli_release_iocbq(phba, iocb);
2328                                 pring->missbufcnt = cnt;
2329                                 return cnt;
2330                         }
2331 
2332                         INIT_LIST_HEAD(&mp2->list);
2333                 } else {
2334                         mp2 = NULL;
2335                 }
2336 
2337                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2338                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2339                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2340                 icmd->ulpBdeCount = 1;
2341                 cnt--;
2342                 if (mp2) {
2343                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2344                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2345                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2346                         cnt--;
2347                         icmd->ulpBdeCount = 2;
2348                 }
2349 
2350                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2351                 icmd->ulpLe = 1;
2352 
2353                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2354                     IOCB_ERROR) {
2355                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2356                         kfree(mp1);
2357                         cnt++;
2358                         if (mp2) {
2359                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2360                                 kfree(mp2);
2361                                 cnt++;
2362                         }
2363                         lpfc_sli_release_iocbq(phba, iocb);
2364                         pring->missbufcnt = cnt;
2365                         return cnt;
2366                 }
2367                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2368                 if (mp2)
2369                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2370         }
2371         pring->missbufcnt = 0;
2372         return 0;
2373 }
2374 
2375 /**
2376  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2377  * @phba: pointer to lpfc hba data structure.
2378  *
2379  * This routine posts initial receive IOCB buffers to the ELS ring. The
2380  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2381  * set to 64 IOCBs.
2382  *
2383  * Return codes
2384  *   0 - success (currently always success)
2385  **/
2386 static int
2387 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2388 {
2389         struct lpfc_sli *psli = &phba->sli;
2390 
2391         /* Ring 0, ELS / CT buffers */
2392         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2393         /* Ring 2 - FCP no buffers needed */
2394 
2395         return 0;
2396 }
2397 
2398 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2399 
2400 /**
2401  * lpfc_sha_init - Set up initial array of hash table entries
2402  * @HashResultPointer: pointer to an array as hash table.
2403  *
2404  * This routine sets up the initial values to the array of hash table entries
2405  * for the LC HBAs.
2406  **/
2407 static void
2408 lpfc_sha_init(uint32_t * HashResultPointer)
2409 {
2410         HashResultPointer[0] = 0x67452301;
2411         HashResultPointer[1] = 0xEFCDAB89;
2412         HashResultPointer[2] = 0x98BADCFE;
2413         HashResultPointer[3] = 0x10325476;
2414         HashResultPointer[4] = 0xC3D2E1F0;
2415 }
2416 
2417 /**
2418  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2419  * @HashResultPointer: pointer to an initial/result hash table.
2420  * @HashWorkingPointer: pointer to an working hash table.
2421  *
2422  * This routine iterates an initial hash table pointed by @HashResultPointer
2423  * with the values from the working hash table pointeed by @HashWorkingPointer.
2424  * The results are putting back to the initial hash table, returned through
2425  * the @HashResultPointer as the result hash table.
2426  **/
2427 static void
2428 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2429 {
2430         int t;
2431         uint32_t TEMP;
2432         uint32_t A, B, C, D, E;
2433         t = 16;
2434         do {
2435                 HashWorkingPointer[t] =
2436                     S(1,
2437                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2438                                                                      8] ^
2439                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2440         } while (++t <= 79);
2441         t = 0;
2442         A = HashResultPointer[0];
2443         B = HashResultPointer[1];
2444         C = HashResultPointer[2];
2445         D = HashResultPointer[3];
2446         E = HashResultPointer[4];
2447 
2448         do {
2449                 if (t < 20) {
2450                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2451                 } else if (t < 40) {
2452                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2453                 } else if (t < 60) {
2454                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2455                 } else {
2456                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2457                 }
2458                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2459                 E = D;
2460                 D = C;
2461                 C = S(30, B);
2462                 B = A;
2463                 A = TEMP;
2464         } while (++t <= 79);
2465 
2466         HashResultPointer[0] += A;
2467         HashResultPointer[1] += B;
2468         HashResultPointer[2] += C;
2469         HashResultPointer[3] += D;
2470         HashResultPointer[4] += E;
2471 
2472 }
2473 
2474 /**
2475  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2476  * @RandomChallenge: pointer to the entry of host challenge random number array.
2477  * @HashWorking: pointer to the entry of the working hash array.
2478  *
2479  * This routine calculates the working hash array referred by @HashWorking
2480  * from the challenge random numbers associated with the host, referred by
2481  * @RandomChallenge. The result is put into the entry of the working hash
2482  * array and returned by reference through @HashWorking.
2483  **/
2484 static void
2485 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2486 {
2487         *HashWorking = (*RandomChallenge ^ *HashWorking);
2488 }
2489 
2490 /**
2491  * lpfc_hba_init - Perform special handling for LC HBA initialization
2492  * @phba: pointer to lpfc hba data structure.
2493  * @hbainit: pointer to an array of unsigned 32-bit integers.
2494  *
2495  * This routine performs the special handling for LC HBA initialization.
2496  **/
2497 void
2498 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2499 {
2500         int t;
2501         uint32_t *HashWorking;
2502         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2503 
2504         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2505         if (!HashWorking)
2506                 return;
2507 
2508         HashWorking[0] = HashWorking[78] = *pwwnn++;
2509         HashWorking[1] = HashWorking[79] = *pwwnn;
2510 
2511         for (t = 0; t < 7; t++)
2512                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2513 
2514         lpfc_sha_init(hbainit);
2515         lpfc_sha_iterate(hbainit, HashWorking);
2516         kfree(HashWorking);
2517 }
2518 
2519 /**
2520  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2521  * @vport: pointer to a virtual N_Port data structure.
2522  *
2523  * This routine performs the necessary cleanups before deleting the @vport.
2524  * It invokes the discovery state machine to perform necessary state
2525  * transitions and to release the ndlps associated with the @vport. Note,
2526  * the physical port is treated as @vport 0.
2527  **/
2528 void
2529 lpfc_cleanup(struct lpfc_vport *vport)
2530 {
2531         struct lpfc_hba   *phba = vport->phba;
2532         struct lpfc_nodelist *ndlp, *next_ndlp;
2533         int i = 0;
2534 
2535         if (phba->link_state > LPFC_LINK_DOWN)
2536                 lpfc_port_link_failure(vport);
2537 
2538         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2539                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2540                         ndlp = lpfc_enable_node(vport, ndlp,
2541                                                 NLP_STE_UNUSED_NODE);
2542                         if (!ndlp)
2543                                 continue;
2544                         spin_lock_irq(&phba->ndlp_lock);
2545                         NLP_SET_FREE_REQ(ndlp);
2546                         spin_unlock_irq(&phba->ndlp_lock);
2547                         /* Trigger the release of the ndlp memory */
2548                         lpfc_nlp_put(ndlp);
2549                         continue;
2550                 }
2551                 spin_lock_irq(&phba->ndlp_lock);
2552                 if (NLP_CHK_FREE_REQ(ndlp)) {
2553                         /* The ndlp should not be in memory free mode already */
2554                         spin_unlock_irq(&phba->ndlp_lock);
2555                         continue;
2556                 } else
2557                         /* Indicate request for freeing ndlp memory */
2558                         NLP_SET_FREE_REQ(ndlp);
2559                 spin_unlock_irq(&phba->ndlp_lock);
2560 
2561                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2562                     ndlp->nlp_DID == Fabric_DID) {
2563                         /* Just free up ndlp with Fabric_DID for vports */
2564                         lpfc_nlp_put(ndlp);
2565                         continue;
2566                 }
2567 
2568                 /* take care of nodes in unused state before the state
2569                  * machine taking action.
2570                  */
2571                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2572                         lpfc_nlp_put(ndlp);
2573                         continue;
2574                 }
2575 
2576                 if (ndlp->nlp_type & NLP_FABRIC)
2577                         lpfc_disc_state_machine(vport, ndlp, NULL,
2578                                         NLP_EVT_DEVICE_RECOVERY);
2579 
2580                 lpfc_disc_state_machine(vport, ndlp, NULL,
2581                                              NLP_EVT_DEVICE_RM);
2582         }
2583 
2584         /* At this point, ALL ndlp's should be gone
2585          * because of the previous NLP_EVT_DEVICE_RM.
2586          * Lets wait for this to happen, if needed.
2587          */
2588         while (!list_empty(&vport->fc_nodes)) {
2589                 if (i++ > 3000) {
2590                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2591                                 "0233 Nodelist not empty\n");
2592                         list_for_each_entry_safe(ndlp, next_ndlp,
2593                                                 &vport->fc_nodes, nlp_listp) {
2594                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2595                                                 LOG_NODE,
2596                                                 "0282 did:x%x ndlp:x%p "
2597                                                 "usgmap:x%x refcnt:%d\n",
2598                                                 ndlp->nlp_DID, (void *)ndlp,
2599                                                 ndlp->nlp_usg_map,
2600                                                 atomic_read(
2601                                                         &ndlp->kref.refcount));
2602                         }
2603                         break;
2604                 }
2605 
2606                 /* Wait for any activity on ndlps to settle */
2607                 msleep(10);
2608         }
2609         lpfc_cleanup_vports_rrqs(vport, NULL);
2610 }
2611 
2612 /**
2613  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2614  * @vport: pointer to a virtual N_Port data structure.
2615  *
2616  * This routine stops all the timers associated with a @vport. This function
2617  * is invoked before disabling or deleting a @vport. Note that the physical
2618  * port is treated as @vport 0.
2619  **/
2620 void
2621 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2622 {
2623         del_timer_sync(&vport->els_tmofunc);
2624         del_timer_sync(&vport->fc_fdmitmo);
2625         del_timer_sync(&vport->delayed_disc_tmo);
2626         lpfc_can_disctmo(vport);
2627         return;
2628 }
2629 
2630 /**
2631  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2632  * @phba: pointer to lpfc hba data structure.
2633  *
2634  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2635  * caller of this routine should already hold the host lock.
2636  **/
2637 void
2638 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2639 {
2640         /* Clear pending FCF rediscovery wait flag */
2641         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2642 
2643         /* Now, try to stop the timer */
2644         del_timer(&phba->fcf.redisc_wait);
2645 }
2646 
2647 /**
2648  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2649  * @phba: pointer to lpfc hba data structure.
2650  *
2651  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2652  * checks whether the FCF rediscovery wait timer is pending with the host
2653  * lock held before proceeding with disabling the timer and clearing the
2654  * wait timer pendig flag.
2655  **/
2656 void
2657 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2658 {
2659         spin_lock_irq(&phba->hbalock);
2660         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2661                 /* FCF rediscovery timer already fired or stopped */
2662                 spin_unlock_irq(&phba->hbalock);
2663                 return;
2664         }
2665         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2666         /* Clear failover in progress flags */
2667         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2668         spin_unlock_irq(&phba->hbalock);
2669 }
2670 
2671 /**
2672  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2673  * @phba: pointer to lpfc hba data structure.
2674  *
2675  * This routine stops all the timers associated with a HBA. This function is
2676  * invoked before either putting a HBA offline or unloading the driver.
2677  **/
2678 void
2679 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2680 {
2681         lpfc_stop_vport_timers(phba->pport);
2682         del_timer_sync(&phba->sli.mbox_tmo);
2683         del_timer_sync(&phba->fabric_block_timer);
2684         del_timer_sync(&phba->eratt_poll);
2685         del_timer_sync(&phba->hb_tmofunc);
2686         if (phba->sli_rev == LPFC_SLI_REV4) {
2687                 del_timer_sync(&phba->rrq_tmr);
2688                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2689         }
2690         phba->hb_outstanding = 0;
2691 
2692         switch (phba->pci_dev_grp) {
2693         case LPFC_PCI_DEV_LP:
2694                 /* Stop any LightPulse device specific driver timers */
2695                 del_timer_sync(&phba->fcp_poll_timer);
2696                 break;
2697         case LPFC_PCI_DEV_OC:
2698                 /* Stop any OneConnect device sepcific driver timers */
2699                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2700                 break;
2701         default:
2702                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2703                                 "0297 Invalid device group (x%x)\n",
2704                                 phba->pci_dev_grp);
2705                 break;
2706         }
2707         return;
2708 }
2709 
2710 /**
2711  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2712  * @phba: pointer to lpfc hba data structure.
2713  *
2714  * This routine marks a HBA's management interface as blocked. Once the HBA's
2715  * management interface is marked as blocked, all the user space access to
2716  * the HBA, whether they are from sysfs interface or libdfc interface will
2717  * all be blocked. The HBA is set to block the management interface when the
2718  * driver prepares the HBA interface for online or offline.
2719  **/
2720 static void
2721 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2722 {
2723         unsigned long iflag;
2724         uint8_t actcmd = MBX_HEARTBEAT;
2725         unsigned long timeout;
2726 
2727         spin_lock_irqsave(&phba->hbalock, iflag);
2728         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2729         spin_unlock_irqrestore(&phba->hbalock, iflag);
2730         if (mbx_action == LPFC_MBX_NO_WAIT)
2731                 return;
2732         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2733         spin_lock_irqsave(&phba->hbalock, iflag);
2734         if (phba->sli.mbox_active) {
2735                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2736                 /* Determine how long we might wait for the active mailbox
2737                  * command to be gracefully completed by firmware.
2738                  */
2739                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2740                                 phba->sli.mbox_active) * 1000) + jiffies;
2741         }
2742         spin_unlock_irqrestore(&phba->hbalock, iflag);
2743 
2744         /* Wait for the outstnading mailbox command to complete */
2745         while (phba->sli.mbox_active) {
2746                 /* Check active mailbox complete status every 2ms */
2747                 msleep(2);
2748                 if (time_after(jiffies, timeout)) {
2749                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2750                                 "2813 Mgmt IO is Blocked %x "
2751                                 "- mbox cmd %x still active\n",
2752                                 phba->sli.sli_flag, actcmd);
2753                         break;
2754                 }
2755         }
2756 }
2757 
2758 /**
2759  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2760  * @phba: pointer to lpfc hba data structure.
2761  *
2762  * Allocate RPIs for all active remote nodes. This is needed whenever
2763  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2764  * is to fixup the temporary rpi assignments.
2765  **/
2766 void
2767 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2768 {
2769         struct lpfc_nodelist  *ndlp, *next_ndlp;
2770         struct lpfc_vport **vports;
2771         int i;
2772 
2773         if (phba->sli_rev != LPFC_SLI_REV4)
2774                 return;
2775 
2776         vports = lpfc_create_vport_work_array(phba);
2777         if (vports != NULL) {
2778                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2779                         if (vports[i]->load_flag & FC_UNLOADING)
2780                                 continue;
2781 
2782                         list_for_each_entry_safe(ndlp, next_ndlp,
2783                                                  &vports[i]->fc_nodes,
2784                                                  nlp_listp) {
2785                                 if (NLP_CHK_NODE_ACT(ndlp)) {
2786                                         ndlp->nlp_rpi =
2787                                                 lpfc_sli4_alloc_rpi(phba);
2788                                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
2789                                                          LOG_NODE,
2790                                                          "0009 rpi:%x DID:%x "
2791                                                          "flg:%x map:%x %p\n",
2792                                                          ndlp->nlp_rpi,
2793                                                          ndlp->nlp_DID,
2794                                                          ndlp->nlp_flag,
2795                                                          ndlp->nlp_usg_map,
2796                                                          ndlp);
2797                                 }
2798                         }
2799                 }
2800         }
2801         lpfc_destroy_vport_work_array(phba, vports);
2802 }
2803 
2804 /**
2805  * lpfc_online - Initialize and bring a HBA online
2806  * @phba: pointer to lpfc hba data structure.
2807  *
2808  * This routine initializes the HBA and brings a HBA online. During this
2809  * process, the management interface is blocked to prevent user space access
2810  * to the HBA interfering with the driver initialization.
2811  *
2812  * Return codes
2813  *   0 - successful
2814  *   1 - failed
2815  **/
2816 int
2817 lpfc_online(struct lpfc_hba *phba)
2818 {
2819         struct lpfc_vport *vport;
2820         struct lpfc_vport **vports;
2821         int i;
2822         bool vpis_cleared = false;
2823 
2824         if (!phba)
2825                 return 0;
2826         vport = phba->pport;
2827 
2828         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2829                 return 0;
2830 
2831         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2832                         "0458 Bring Adapter online\n");
2833 
2834         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2835 
2836         if (!lpfc_sli_queue_setup(phba)) {
2837                 lpfc_unblock_mgmt_io(phba);
2838                 return 1;
2839         }
2840 
2841         if (phba->sli_rev == LPFC_SLI_REV4) {
2842                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2843                         lpfc_unblock_mgmt_io(phba);
2844                         return 1;
2845                 }
2846                 spin_lock_irq(&phba->hbalock);
2847                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2848                         vpis_cleared = true;
2849                 spin_unlock_irq(&phba->hbalock);
2850         } else {
2851                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2852                         lpfc_unblock_mgmt_io(phba);
2853                         return 1;
2854                 }
2855         }
2856 
2857         vports = lpfc_create_vport_work_array(phba);
2858         if (vports != NULL)
2859                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2860                         struct Scsi_Host *shost;
2861                         shost = lpfc_shost_from_vport(vports[i]);
2862                         spin_lock_irq(shost->host_lock);
2863                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2864                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2865                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2866                         if (phba->sli_rev == LPFC_SLI_REV4) {
2867                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2868                                 if ((vpis_cleared) &&
2869                                     (vports[i]->port_type !=
2870                                         LPFC_PHYSICAL_PORT))
2871                                         vports[i]->vpi = 0;
2872                         }
2873                         spin_unlock_irq(shost->host_lock);
2874                 }
2875                 lpfc_destroy_vport_work_array(phba, vports);
2876 
2877         lpfc_unblock_mgmt_io(phba);
2878         return 0;
2879 }
2880 
2881 /**
2882  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2883  * @phba: pointer to lpfc hba data structure.
2884  *
2885  * This routine marks a HBA's management interface as not blocked. Once the
2886  * HBA's management interface is marked as not blocked, all the user space
2887  * access to the HBA, whether they are from sysfs interface or libdfc
2888  * interface will be allowed. The HBA is set to block the management interface
2889  * when the driver prepares the HBA interface for online or offline and then
2890  * set to unblock the management interface afterwards.
2891  **/
2892 void
2893 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2894 {
2895         unsigned long iflag;
2896 
2897         spin_lock_irqsave(&phba->hbalock, iflag);
2898         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2899         spin_unlock_irqrestore(&phba->hbalock, iflag);
2900 }
2901 
2902 /**
2903  * lpfc_offline_prep - Prepare a HBA to be brought offline
2904  * @phba: pointer to lpfc hba data structure.
2905  *
2906  * This routine is invoked to prepare a HBA to be brought offline. It performs
2907  * unregistration login to all the nodes on all vports and flushes the mailbox
2908  * queue to make it ready to be brought offline.
2909  **/
2910 void
2911 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2912 {
2913         struct lpfc_vport *vport = phba->pport;
2914         struct lpfc_nodelist  *ndlp, *next_ndlp;
2915         struct lpfc_vport **vports;
2916         struct Scsi_Host *shost;
2917         int i;
2918 
2919         if (vport->fc_flag & FC_OFFLINE_MODE)
2920                 return;
2921 
2922         lpfc_block_mgmt_io(phba, mbx_action);
2923 
2924         lpfc_linkdown(phba);
2925 
2926         /* Issue an unreg_login to all nodes on all vports */
2927         vports = lpfc_create_vport_work_array(phba);
2928         if (vports != NULL) {
2929                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2930                         if (vports[i]->load_flag & FC_UNLOADING)
2931                                 continue;
2932                         shost = lpfc_shost_from_vport(vports[i]);
2933                         spin_lock_irq(shost->host_lock);
2934                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2935                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2936                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2937                         spin_unlock_irq(shost->host_lock);
2938 
2939                         shost = lpfc_shost_from_vport(vports[i]);
2940                         list_for_each_entry_safe(ndlp, next_ndlp,
2941                                                  &vports[i]->fc_nodes,
2942                                                  nlp_listp) {
2943                                 if (!NLP_CHK_NODE_ACT(ndlp))
2944                                         continue;
2945                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2946                                         continue;
2947                                 if (ndlp->nlp_type & NLP_FABRIC) {
2948                                         lpfc_disc_state_machine(vports[i], ndlp,
2949                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2950                                         lpfc_disc_state_machine(vports[i], ndlp,
2951                                                 NULL, NLP_EVT_DEVICE_RM);
2952                                 }
2953                                 spin_lock_irq(shost->host_lock);
2954                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2955                                 spin_unlock_irq(shost->host_lock);
2956                                 /*
2957                                  * Whenever an SLI4 port goes offline, free the
2958                                  * RPI. Get a new RPI when the adapter port
2959                                  * comes back online.
2960                                  */
2961                                 if (phba->sli_rev == LPFC_SLI_REV4) {
2962                                         lpfc_printf_vlog(ndlp->vport,
2963                                                          KERN_INFO, LOG_NODE,
2964                                                          "0011 lpfc_offline: "
2965                                                          "ndlp:x%p did %x "
2966                                                          "usgmap:x%x rpi:%x\n",
2967                                                          ndlp, ndlp->nlp_DID,
2968                                                          ndlp->nlp_usg_map,
2969                                                          ndlp->nlp_rpi);
2970 
2971                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2972                                 }
2973                                 lpfc_unreg_rpi(vports[i], ndlp);
2974                         }
2975                 }
2976         }
2977         lpfc_destroy_vport_work_array(phba, vports);
2978 
2979         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2980 }
2981 
2982 /**
2983  * lpfc_offline - Bring a HBA offline
2984  * @phba: pointer to lpfc hba data structure.
2985  *
2986  * This routine actually brings a HBA offline. It stops all the timers
2987  * associated with the HBA, brings down the SLI layer, and eventually
2988  * marks the HBA as in offline state for the upper layer protocol.
2989  **/
2990 void
2991 lpfc_offline(struct lpfc_hba *phba)
2992 {
2993         struct Scsi_Host  *shost;
2994         struct lpfc_vport **vports;
2995         int i;
2996 
2997         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2998                 return;
2999 
3000         /* stop port and all timers associated with this hba */
3001         lpfc_stop_port(phba);
3002         vports = lpfc_create_vport_work_array(phba);
3003         if (vports != NULL)
3004                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3005                         lpfc_stop_vport_timers(vports[i]);
3006         lpfc_destroy_vport_work_array(phba, vports);
3007         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3008                         "0460 Bring Adapter offline\n");
3009         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3010            now.  */
3011         lpfc_sli_hba_down(phba);
3012         spin_lock_irq(&phba->hbalock);
3013         phba->work_ha = 0;
3014         spin_unlock_irq(&phba->hbalock);
3015         vports = lpfc_create_vport_work_array(phba);
3016         if (vports != NULL)
3017                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3018                         shost = lpfc_shost_from_vport(vports[i]);
3019                         spin_lock_irq(shost->host_lock);
3020                         vports[i]->work_port_events = 0;
3021                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3022                         spin_unlock_irq(shost->host_lock);
3023                 }
3024         lpfc_destroy_vport_work_array(phba, vports);
3025 }
3026 
3027 /**
3028  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3029  * @phba: pointer to lpfc hba data structure.
3030  *
3031  * This routine is to free all the SCSI buffers and IOCBs from the driver
3032  * list back to kernel. It is called from lpfc_pci_remove_one to free
3033  * the internal resources before the device is removed from the system.
3034  **/
3035 static void
3036 lpfc_scsi_free(struct lpfc_hba *phba)
3037 {
3038         struct lpfc_scsi_buf *sb, *sb_next;
3039         struct lpfc_iocbq *io, *io_next;
3040 
3041         spin_lock_irq(&phba->hbalock);
3042 
3043         /* Release all the lpfc_scsi_bufs maintained by this host. */
3044 
3045         spin_lock(&phba->scsi_buf_list_put_lock);
3046         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3047                                  list) {
3048                 list_del(&sb->list);
3049                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3050                               sb->dma_handle);
3051                 kfree(sb);
3052                 phba->total_scsi_bufs--;
3053         }
3054         spin_unlock(&phba->scsi_buf_list_put_lock);
3055 
3056         spin_lock(&phba->scsi_buf_list_get_lock);
3057         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3058                                  list) {
3059                 list_del(&sb->list);
3060                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3061                               sb->dma_handle);
3062                 kfree(sb);
3063                 phba->total_scsi_bufs--;
3064         }
3065         spin_unlock(&phba->scsi_buf_list_get_lock);
3066 
3067         /* Release all the lpfc_iocbq entries maintained by this host. */
3068         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3069                 list_del(&io->list);
3070                 kfree(io);
3071                 phba->total_iocbq_bufs--;
3072         }
3073 
3074         spin_unlock_irq(&phba->hbalock);
3075 }
3076 
3077 /**
3078  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3079  * @phba: pointer to lpfc hba data structure.
3080  *
3081  * This routine first calculates the sizes of the current els and allocated
3082  * scsi sgl lists, and then goes through all sgls to updates the physical
3083  * XRIs assigned due to port function reset. During port initialization, the
3084  * current els and allocated scsi sgl lists are 0s.
3085  *
3086  * Return codes
3087  *   0 - successful (for now, it always returns 0)
3088  **/
3089 int
3090 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3091 {
3092         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3093         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3094         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3095         LIST_HEAD(els_sgl_list);
3096         LIST_HEAD(scsi_sgl_list);
3097         int rc;
3098         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3099 
3100         /*
3101          * update on pci function's els xri-sgl list
3102          */
3103         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3104         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3105                 /* els xri-sgl expanded */
3106                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3107                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3108                                 "3157 ELS xri-sgl count increased from "
3109                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3110                                 els_xri_cnt);
3111                 /* allocate the additional els sgls */
3112                 for (i = 0; i < xri_cnt; i++) {
3113                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3114                                              GFP_KERNEL);
3115                         if (sglq_entry == NULL) {
3116                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3117                                                 "2562 Failure to allocate an "
3118                                                 "ELS sgl entry:%d\n", i);
3119                                 rc = -ENOMEM;
3120                                 goto out_free_mem;
3121                         }
3122                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3123                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3124                                                            &sglq_entry->phys);
3125                         if (sglq_entry->virt == NULL) {
3126                                 kfree(sglq_entry);
3127                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3128                                                 "2563 Failure to allocate an "
3129                                                 "ELS mbuf:%d\n", i);
3130                                 rc = -ENOMEM;
3131                                 goto out_free_mem;
3132                         }
3133                         sglq_entry->sgl = sglq_entry->virt;
3134                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3135                         sglq_entry->state = SGL_FREED;
3136                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3137                 }
3138                 spin_lock_irq(&phba->hbalock);
3139                 spin_lock(&pring->ring_lock);
3140                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3141                 spin_unlock(&pring->ring_lock);
3142                 spin_unlock_irq(&phba->hbalock);
3143         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3144                 /* els xri-sgl shrinked */
3145                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3146                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3147                                 "3158 ELS xri-sgl count decreased from "
3148                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3149                                 els_xri_cnt);
3150                 spin_lock_irq(&phba->hbalock);
3151                 spin_lock(&pring->ring_lock);
3152                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3153                 spin_unlock(&pring->ring_lock);
3154                 spin_unlock_irq(&phba->hbalock);
3155                 /* release extra els sgls from list */
3156                 for (i = 0; i < xri_cnt; i++) {
3157                         list_remove_head(&els_sgl_list,
3158                                          sglq_entry, struct lpfc_sglq, list);
3159                         if (sglq_entry) {
3160                                 lpfc_mbuf_free(phba, sglq_entry->virt,
3161                                                sglq_entry->phys);
3162                                 kfree(sglq_entry);
3163                         }
3164                 }
3165                 spin_lock_irq(&phba->hbalock);
3166                 spin_lock(&pring->ring_lock);
3167                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3168                 spin_unlock(&pring->ring_lock);
3169                 spin_unlock_irq(&phba->hbalock);
3170         } else
3171                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3172                                 "3163 ELS xri-sgl count unchanged: %d\n",
3173                                 els_xri_cnt);
3174         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3175 
3176         /* update xris to els sgls on the list */
3177         sglq_entry = NULL;
3178         sglq_entry_next = NULL;
3179         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3180                                  &phba->sli4_hba.lpfc_sgl_list, list) {
3181                 lxri = lpfc_sli4_next_xritag(phba);
3182                 if (lxri == NO_XRI) {
3183                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3184                                         "2400 Failed to allocate xri for "
3185                                         "ELS sgl\n");
3186                         rc = -ENOMEM;
3187                         goto out_free_mem;
3188                 }
3189                 sglq_entry->sli4_lxritag = lxri;
3190                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3191         }
3192 
3193         /*
3194          * update on pci function's allocated scsi xri-sgl list
3195          */
3196         phba->total_scsi_bufs = 0;
3197 
3198         /* maximum number of xris available for scsi buffers */
3199         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3200                                       els_xri_cnt;
3201 
3202         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3203                         "2401 Current allocated SCSI xri-sgl count:%d, "
3204                         "maximum  SCSI xri count:%d\n",
3205                         phba->sli4_hba.scsi_xri_cnt,
3206                         phba->sli4_hba.scsi_xri_max);
3207 
3208         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3209         spin_lock(&phba->scsi_buf_list_put_lock);
3210         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3211         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3212         spin_unlock(&phba->scsi_buf_list_put_lock);
3213         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3214 
3215         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3216                 /* max scsi xri shrinked below the allocated scsi buffers */
3217                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3218                                         phba->sli4_hba.scsi_xri_max;
3219                 /* release the extra allocated scsi buffers */
3220                 for (i = 0; i < scsi_xri_cnt; i++) {
3221                         list_remove_head(&scsi_sgl_list, psb,
3222                                          struct lpfc_scsi_buf, list);
3223                         if (psb) {
3224                                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
3225                                               psb->data, psb->dma_handle);
3226                                 kfree(psb);
3227                         }
3228                 }
3229                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3230                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3231                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3232         }
3233 
3234         /* update xris associated to remaining allocated scsi buffers */
3235         psb = NULL;
3236         psb_next = NULL;
3237         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3238                 lxri = lpfc_sli4_next_xritag(phba);
3239                 if (lxri == NO_XRI) {
3240                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3241                                         "2560 Failed to allocate xri for "
3242                                         "scsi buffer\n");
3243                         rc = -ENOMEM;
3244                         goto out_free_mem;
3245                 }
3246                 psb->cur_iocbq.sli4_lxritag = lxri;
3247                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3248         }
3249         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3250         spin_lock(&phba->scsi_buf_list_put_lock);
3251         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3252         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3253         spin_unlock(&phba->scsi_buf_list_put_lock);
3254         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3255 
3256         return 0;
3257 
3258 out_free_mem:
3259         lpfc_free_els_sgl_list(phba);
3260         lpfc_scsi_free(phba);
3261         return rc;
3262 }
3263 
3264 /**
3265  * lpfc_create_port - Create an FC port
3266  * @phba: pointer to lpfc hba data structure.
3267  * @instance: a unique integer ID to this FC port.
3268  * @dev: pointer to the device data structure.
3269  *
3270  * This routine creates a FC port for the upper layer protocol. The FC port
3271  * can be created on top of either a physical port or a virtual port provided
3272  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3273  * and associates the FC port created before adding the shost into the SCSI
3274  * layer.
3275  *
3276  * Return codes
3277  *   @vport - pointer to the virtual N_Port data structure.
3278  *   NULL - port create failed.
3279  **/
3280 struct lpfc_vport *
3281 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3282 {
3283         struct lpfc_vport *vport;
3284         struct Scsi_Host  *shost;
3285         int error = 0;
3286 
3287         if (dev != &phba->pcidev->dev) {
3288                 shost = scsi_host_alloc(&lpfc_vport_template,
3289                                         sizeof(struct lpfc_vport));
3290         } else {
3291                 if (phba->sli_rev == LPFC_SLI_REV4)
3292                         shost = scsi_host_alloc(&lpfc_template,
3293                                         sizeof(struct lpfc_vport));
3294                 else
3295                         shost = scsi_host_alloc(&lpfc_template_s3,
3296                                         sizeof(struct lpfc_vport));
3297         }
3298         if (!shost)
3299                 goto out;
3300 
3301         vport = (struct lpfc_vport *) shost->hostdata;
3302         vport->phba = phba;
3303         vport->load_flag |= FC_LOADING;
3304         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3305         vport->fc_rscn_flush = 0;
3306 
3307         lpfc_get_vport_cfgparam(vport);
3308         shost->unique_id = instance;
3309         shost->max_id = LPFC_MAX_TARGET;
3310         shost->max_lun = vport->cfg_max_luns;
3311         shost->this_id = -1;
3312         shost->max_cmd_len = 16;
3313         shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3314         if (phba->sli_rev == LPFC_SLI_REV4) {
3315                 shost->dma_boundary =
3316                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3317                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3318         }
3319 
3320         /*
3321          * Set initial can_queue value since 0 is no longer supported and
3322          * scsi_add_host will fail. This will be adjusted later based on the
3323          * max xri value determined in hba setup.
3324          */
3325         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3326         if (dev != &phba->pcidev->dev) {
3327                 shost->transportt = lpfc_vport_transport_template;
3328                 vport->port_type = LPFC_NPIV_PORT;
3329         } else {
3330                 shost->transportt = lpfc_transport_template;
3331                 vport->port_type = LPFC_PHYSICAL_PORT;
3332         }
3333 
3334         /* Initialize all internally managed lists. */
3335         INIT_LIST_HEAD(&vport->fc_nodes);
3336         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3337         spin_lock_init(&vport->work_port_lock);
3338 
3339         init_timer(&vport->fc_disctmo);
3340         vport->fc_disctmo.function = lpfc_disc_timeout;
3341         vport->fc_disctmo.data = (unsigned long)vport;
3342 
3343         init_timer(&vport->fc_fdmitmo);
3344         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3345         vport->fc_fdmitmo.data = (unsigned long)vport;
3346 
3347         init_timer(&vport->els_tmofunc);
3348         vport->els_tmofunc.function = lpfc_els_timeout;
3349         vport->els_tmofunc.data = (unsigned long)vport;
3350 
3351         init_timer(&vport->delayed_disc_tmo);
3352         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3353         vport->delayed_disc_tmo.data = (unsigned long)vport;
3354 
3355         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3356         if (error)
3357                 goto out_put_shost;
3358 
3359         spin_lock_irq(&phba->hbalock);
3360         list_add_tail(&vport->listentry, &phba->port_list);
3361         spin_unlock_irq(&phba->hbalock);
3362         return vport;
3363 
3364 out_put_shost:
3365         scsi_host_put(shost);
3366 out:
3367         return NULL;
3368 }
3369 
3370 /**
3371  * destroy_port -  destroy an FC port
3372  * @vport: pointer to an lpfc virtual N_Port data structure.
3373  *
3374  * This routine destroys a FC port from the upper layer protocol. All the
3375  * resources associated with the port are released.
3376  **/
3377 void
3378 destroy_port(struct lpfc_vport *vport)
3379 {
3380         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3381         struct lpfc_hba  *phba = vport->phba;
3382 
3383         lpfc_debugfs_terminate(vport);
3384         fc_remove_host(shost);
3385         scsi_remove_host(shost);
3386 
3387         spin_lock_irq(&phba->hbalock);
3388         list_del_init(&vport->listentry);
3389         spin_unlock_irq(&phba->hbalock);
3390 
3391         lpfc_cleanup(vport);
3392         return;
3393 }
3394 
3395 /**
3396  * lpfc_get_instance - Get a unique integer ID
3397  *
3398  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3399  * uses the kernel idr facility to perform the task.
3400  *
3401  * Return codes:
3402  *   instance - a unique integer ID allocated as the new instance.
3403  *   -1 - lpfc get instance failed.
3404  **/
3405 int
3406 lpfc_get_instance(void)
3407 {
3408         int ret;
3409 
3410         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3411         return ret < 0 ? -1 : ret;
3412 }
3413 
3414 /**
3415  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3416  * @shost: pointer to SCSI host data structure.
3417  * @time: elapsed time of the scan in jiffies.
3418  *
3419  * This routine is called by the SCSI layer with a SCSI host to determine
3420  * whether the scan host is finished.
3421  *
3422  * Note: there is no scan_start function as adapter initialization will have
3423  * asynchronously kicked off the link initialization.
3424  *
3425  * Return codes
3426  *   0 - SCSI host scan is not over yet.
3427  *   1 - SCSI host scan is over.
3428  **/
3429 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3430 {
3431         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3432         struct lpfc_hba   *phba = vport->phba;
3433         int stat = 0;
3434 
3435         spin_lock_irq(shost->host_lock);
3436 
3437         if (vport->load_flag & FC_UNLOADING) {
3438                 stat = 1;
3439                 goto finished;
3440         }
3441         if (time >= msecs_to_jiffies(30 * 1000)) {
3442                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3443                                 "0461 Scanning longer than 30 "
3444                                 "seconds.  Continuing initialization\n");
3445                 stat = 1;
3446                 goto finished;
3447         }
3448         if (time >= msecs_to_jiffies(15 * 1000) &&
3449             phba->link_state <= LPFC_LINK_DOWN) {
3450                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3451                                 "0465 Link down longer than 15 "
3452                                 "seconds.  Continuing initialization\n");
3453                 stat = 1;
3454                 goto finished;
3455         }
3456 
3457         if (vport->port_state != LPFC_VPORT_READY)
3458                 goto finished;
3459         if (vport->num_disc_nodes || vport->fc_prli_sent)
3460                 goto finished;
3461         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3462                 goto finished;
3463         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3464                 goto finished;
3465 
3466         stat = 1;
3467 
3468 finished:
3469         spin_unlock_irq(shost->host_lock);
3470         return stat;
3471 }
3472 
3473 /**
3474  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3475  * @shost: pointer to SCSI host data structure.
3476  *
3477  * This routine initializes a given SCSI host attributes on a FC port. The
3478  * SCSI host can be either on top of a physical port or a virtual port.
3479  **/
3480 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3481 {
3482         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3483         struct lpfc_hba   *phba = vport->phba;
3484         /*
3485          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3486          */
3487 
3488         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3489         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3490         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3491 
3492         memset(fc_host_supported_fc4s(shost), 0,
3493                sizeof(fc_host_supported_fc4s(shost)));
3494         fc_host_supported_fc4s(shost)[2] = 1;
3495         fc_host_supported_fc4s(shost)[7] = 1;
3496 
3497         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3498                                  sizeof fc_host_symbolic_name(shost));
3499 
3500         fc_host_supported_speeds(shost) = 0;
3501         if (phba->lmt & LMT_32Gb)
3502                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
3503         if (phba->lmt & LMT_16Gb)
3504                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3505         if (phba->lmt & LMT_10Gb)
3506                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3507         if (phba->lmt & LMT_8Gb)
3508                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3509         if (phba->lmt & LMT_4Gb)
3510                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3511         if (phba->lmt & LMT_2Gb)
3512                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3513         if (phba->lmt & LMT_1Gb)
3514                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3515 
3516         fc_host_maxframe_size(shost) =
3517                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3518                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3519 
3520         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3521 
3522         /* This value is also unchanging */
3523         memset(fc_host_active_fc4s(shost), 0,
3524                sizeof(fc_host_active_fc4s(shost)));
3525         fc_host_active_fc4s(shost)[2] = 1;
3526         fc_host_active_fc4s(shost)[7] = 1;
3527 
3528         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3529         spin_lock_irq(shost->host_lock);
3530         vport->load_flag &= ~FC_LOADING;
3531         spin_unlock_irq(shost->host_lock);
3532 }
3533 
3534 /**
3535  * lpfc_stop_port_s3 - Stop SLI3 device port
3536  * @phba: pointer to lpfc hba data structure.
3537  *
3538  * This routine is invoked to stop an SLI3 device port, it stops the device
3539  * from generating interrupts and stops the device driver's timers for the
3540  * device.
3541  **/
3542 static void
3543 lpfc_stop_port_s3(struct lpfc_hba *phba)
3544 {
3545         /* Clear all interrupt enable conditions */
3546         writel(0, phba->HCregaddr);
3547         readl(phba->HCregaddr); /* flush */
3548         /* Clear all pending interrupts */
3549         writel(0xffffffff, phba->HAregaddr);
3550         readl(phba->HAregaddr); /* flush */
3551 
3552         /* Reset some HBA SLI setup states */
3553         lpfc_stop_hba_timers(phba);
3554         phba->pport->work_port_events = 0;
3555 }
3556 
3557 /**
3558  * lpfc_stop_port_s4 - Stop SLI4 device port
3559  * @phba: pointer to lpfc hba data structure.
3560  *
3561  * This routine is invoked to stop an SLI4 device port, it stops the device
3562  * from generating interrupts and stops the device driver's timers for the
3563  * device.
3564  **/
3565 static void
3566 lpfc_stop_port_s4(struct lpfc_hba *phba)
3567 {
3568         /* Reset some HBA SLI4 setup states */
3569         lpfc_stop_hba_timers(phba);
3570         phba->pport->work_port_events = 0;
3571         phba->sli4_hba.intr_enable = 0;
3572 }
3573 
3574 /**
3575  * lpfc_stop_port - Wrapper function for stopping hba port
3576  * @phba: Pointer to HBA context object.
3577  *
3578  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3579  * the API jump table function pointer from the lpfc_hba struct.
3580  **/
3581 void
3582 lpfc_stop_port(struct lpfc_hba *phba)
3583 {
3584         phba->lpfc_stop_port(phba);
3585 }
3586 
3587 /**
3588  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3589  * @phba: Pointer to hba for which this call is being executed.
3590  *
3591  * This routine starts the timer waiting for the FCF rediscovery to complete.
3592  **/
3593 void
3594 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3595 {
3596         unsigned long fcf_redisc_wait_tmo =
3597                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3598         /* Start fcf rediscovery wait period timer */
3599         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3600         spin_lock_irq(&phba->hbalock);
3601         /* Allow action to new fcf asynchronous event */
3602         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3603         /* Mark the FCF rediscovery pending state */
3604         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3605         spin_unlock_irq(&phba->hbalock);
3606 }
3607 
3608 /**
3609  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3610  * @ptr: Map to lpfc_hba data structure pointer.
3611  *
3612  * This routine is invoked when waiting for FCF table rediscover has been
3613  * timed out. If new FCF record(s) has (have) been discovered during the
3614  * wait period, a new FCF event shall be added to the FCOE async event
3615  * list, and then worker thread shall be waked up for processing from the
3616  * worker thread context.
3617  **/
3618 static void
3619 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3620 {
3621         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3622 
3623         /* Don't send FCF rediscovery event if timer cancelled */
3624         spin_lock_irq(&phba->hbalock);
3625         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3626                 spin_unlock_irq(&phba->hbalock);
3627                 return;
3628         }
3629         /* Clear FCF rediscovery timer pending flag */
3630         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3631         /* FCF rediscovery event to worker thread */
3632         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3633         spin_unlock_irq(&phba->hbalock);
3634         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3635                         "2776 FCF rediscover quiescent timer expired\n");
3636         /* wake up worker thread */
3637         lpfc_worker_wake_up(phba);
3638 }
3639 
3640 /**
3641  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3642  * @phba: pointer to lpfc hba data structure.
3643  * @acqe_link: pointer to the async link completion queue entry.
3644  *
3645  * This routine is to parse the SLI4 link-attention link fault code and
3646  * translate it into the base driver's read link attention mailbox command
3647  * status.
3648  *
3649  * Return: Link-attention status in terms of base driver's coding.
3650  **/
3651 static uint16_t
3652 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3653                            struct lpfc_acqe_link *acqe_link)
3654 {
3655         uint16_t latt_fault;
3656 
3657         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3658         case LPFC_ASYNC_LINK_FAULT_NONE:
3659         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3660         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3661                 latt_fault = 0;
3662                 break;
3663         default:
3664                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3665                                 "0398 Invalid link fault code: x%x\n",
3666                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3667                 latt_fault = MBXERR_ERROR;
3668                 break;
3669         }
3670         return latt_fault;
3671 }
3672 
3673 /**
3674  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3675  * @phba: pointer to lpfc hba data structure.
3676  * @acqe_link: pointer to the async link completion queue entry.
3677  *
3678  * This routine is to parse the SLI4 link attention type and translate it
3679  * into the base driver's link attention type coding.
3680  *
3681  * Return: Link attention type in terms of base driver's coding.
3682  **/
3683 static uint8_t
3684 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3685                           struct lpfc_acqe_link *acqe_link)
3686 {
3687         uint8_t att_type;
3688 
3689         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3690         case LPFC_ASYNC_LINK_STATUS_DOWN:
3691         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3692                 att_type = LPFC_ATT_LINK_DOWN;
3693                 break;
3694         case LPFC_ASYNC_LINK_STATUS_UP:
3695                 /* Ignore physical link up events - wait for logical link up */
3696                 att_type = LPFC_ATT_RESERVED;
3697                 break;
3698         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3699                 att_type = LPFC_ATT_LINK_UP;
3700                 break;
3701         default:
3702                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3703                                 "0399 Invalid link attention type: x%x\n",
3704                                 bf_get(lpfc_acqe_link_status, acqe_link));
3705                 att_type = LPFC_ATT_RESERVED;
3706                 break;
3707         }
3708         return att_type;
3709 }
3710 
3711 /**
3712  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3713  * @phba: pointer to lpfc hba data structure.
3714  * @acqe_link: pointer to the async link completion queue entry.
3715  *
3716  * This routine is to parse the SLI4 link-attention link speed and translate
3717  * it into the base driver's link-attention link speed coding.
3718  *
3719  * Return: Link-attention link speed in terms of base driver's coding.
3720  **/
3721 static uint8_t
3722 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3723                                 struct lpfc_acqe_link *acqe_link)
3724 {
3725         uint8_t link_speed;
3726 
3727         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3728         case LPFC_ASYNC_LINK_SPEED_ZERO:
3729         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3730         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3731                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3732                 break;
3733         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3734                 link_speed = LPFC_LINK_SPEED_1GHZ;
3735                 break;
3736         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3737                 link_speed = LPFC_LINK_SPEED_10GHZ;
3738                 break;
3739         case LPFC_ASYNC_LINK_SPEED_20GBPS:
3740         case LPFC_ASYNC_LINK_SPEED_25GBPS:
3741         case LPFC_ASYNC_LINK_SPEED_40GBPS:
3742                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3743                 break;
3744         default:
3745                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3746                                 "0483 Invalid link-attention link speed: x%x\n",
3747                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3748                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3749                 break;
3750         }
3751         return link_speed;
3752 }
3753 
3754 /**
3755  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3756  * @phba: pointer to lpfc hba data structure.
3757  *
3758  * This routine is to get an SLI3 FC port's link speed in Mbps.
3759  *
3760  * Return: link speed in terms of Mbps.
3761  **/
3762 uint32_t
3763 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3764 {
3765         uint32_t link_speed;
3766 
3767         if (!lpfc_is_link_up(phba))
3768                 return 0;
3769 
3770         switch (phba->fc_linkspeed) {
3771         case LPFC_LINK_SPEED_1GHZ:
3772                 link_speed = 1000;
3773                 break;
3774         case LPFC_LINK_SPEED_2GHZ:
3775                 link_speed = 2000;
3776                 break;
3777         case LPFC_LINK_SPEED_4GHZ:
3778                 link_speed = 4000;
3779                 break;
3780         case LPFC_LINK_SPEED_8GHZ:
3781                 link_speed = 8000;
3782                 break;
3783         case LPFC_LINK_SPEED_10GHZ:
3784                 link_speed = 10000;
3785                 break;
3786         case LPFC_LINK_SPEED_16GHZ:
3787                 link_speed = 16000;
3788                 break;
3789         default:
3790                 link_speed = 0;
3791         }
3792         return link_speed;
3793 }
3794 
3795 /**
3796  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3797  * @phba: pointer to lpfc hba data structure.
3798  * @evt_code: asynchronous event code.
3799  * @speed_code: asynchronous event link speed code.
3800  *
3801  * This routine is to parse the giving SLI4 async event link speed code into
3802  * value of Mbps for the link speed.
3803  *
3804  * Return: link speed in terms of Mbps.
3805  **/
3806 static uint32_t
3807 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3808                            uint8_t speed_code)
3809 {
3810         uint32_t port_speed;
3811 
3812         switch (evt_code) {
3813         case LPFC_TRAILER_CODE_LINK:
3814                 switch (speed_code) {
3815                 case LPFC_ASYNC_LINK_SPEED_ZERO:
3816                         port_speed = 0;
3817                         break;
3818                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3819                         port_speed = 10;
3820                         break;
3821                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3822                         port_speed = 100;
3823                         break;
3824                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3825                         port_speed = 1000;
3826                         break;
3827                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3828                         port_speed = 10000;
3829                         break;
3830                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
3831                         port_speed = 20000;
3832                         break;
3833                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
3834                         port_speed = 25000;
3835                         break;
3836                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
3837                         port_speed = 40000;
3838                         break;
3839                 default:
3840                         port_speed = 0;
3841                 }
3842                 break;
3843         case LPFC_TRAILER_CODE_FC:
3844                 switch (speed_code) {
3845                 case LPFC_FC_LA_SPEED_UNKNOWN:
3846                         port_speed = 0;
3847                         break;
3848                 case LPFC_FC_LA_SPEED_1G:
3849                         port_speed = 1000;
3850                         break;
3851                 case LPFC_FC_LA_SPEED_2G:
3852                         port_speed = 2000;
3853                         break;
3854                 case LPFC_FC_LA_SPEED_4G:
3855                         port_speed = 4000;
3856                         break;
3857                 case LPFC_FC_LA_SPEED_8G:
3858                         port_speed = 8000;
3859                         break;
3860                 case LPFC_FC_LA_SPEED_10G:
3861                         port_speed = 10000;
3862                         break;
3863                 case LPFC_FC_LA_SPEED_16G:
3864                         port_speed = 16000;
3865                         break;
3866                 case LPFC_FC_LA_SPEED_32G:
3867                         port_speed = 32000;
3868                         break;
3869                 default:
3870                         port_speed = 0;
3871                 }
3872                 break;
3873         default:
3874                 port_speed = 0;
3875         }
3876         return port_speed;
3877 }
3878 
3879 /**
3880  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3881  * @phba: pointer to lpfc hba data structure.
3882  * @acqe_link: pointer to the async link completion queue entry.
3883  *
3884  * This routine is to handle the SLI4 asynchronous FCoE link event.
3885  **/
3886 static void
3887 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3888                          struct lpfc_acqe_link *acqe_link)
3889 {
3890         struct lpfc_dmabuf *mp;
3891         LPFC_MBOXQ_t *pmb;
3892         MAILBOX_t *mb;
3893         struct lpfc_mbx_read_top *la;
3894         uint8_t att_type;
3895         int rc;
3896 
3897         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3898         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3899                 return;
3900         phba->fcoe_eventtag = acqe_link->event_tag;
3901         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3902         if (!pmb) {
3903                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3904                                 "0395 The mboxq allocation failed\n");
3905                 return;
3906         }
3907         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3908         if (!mp) {
3909                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3910                                 "0396 The lpfc_dmabuf allocation failed\n");
3911                 goto out_free_pmb;
3912         }
3913         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3914         if (!mp->virt) {
3915                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3916                                 "0397 The mbuf allocation failed\n");
3917                 goto out_free_dmabuf;
3918         }
3919 
3920         /* Cleanup any outstanding ELS commands */
3921         lpfc_els_flush_all_cmd(phba);
3922 
3923         /* Block ELS IOCBs until we have done process link event */
3924         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3925 
3926         /* Update link event statistics */
3927         phba->sli.slistat.link_event++;
3928 
3929         /* Create lpfc_handle_latt mailbox command from link ACQE */
3930         lpfc_read_topology(phba, pmb, mp);
3931         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3932         pmb->vport = phba->pport;
3933 
3934         /* Keep the link status for extra SLI4 state machine reference */
3935         phba->sli4_hba.link_state.speed =
3936                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3937                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3938         phba->sli4_hba.link_state.duplex =
3939                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3940         phba->sli4_hba.link_state.status =
3941                                 bf_get(lpfc_acqe_link_status, acqe_link);
3942         phba->sli4_hba.link_state.type =
3943                                 bf_get(lpfc_acqe_link_type, acqe_link);
3944         phba->sli4_hba.link_state.number =
3945                                 bf_get(lpfc_acqe_link_number, acqe_link);
3946         phba->sli4_hba.link_state.fault =
3947                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3948         phba->sli4_hba.link_state.logical_speed =
3949                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3950 
3951         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3952                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3953                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3954                         "Logical speed:%dMbps Fault:%d\n",
3955                         phba->sli4_hba.link_state.speed,
3956                         phba->sli4_hba.link_state.topology,
3957                         phba->sli4_hba.link_state.status,
3958                         phba->sli4_hba.link_state.type,
3959                         phba->sli4_hba.link_state.number,
3960                         phba->sli4_hba.link_state.logical_speed,
3961                         phba->sli4_hba.link_state.fault);
3962         /*
3963          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3964          * topology info. Note: Optional for non FC-AL ports.
3965          */
3966         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3967                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3968                 if (rc == MBX_NOT_FINISHED)
3969                         goto out_free_dmabuf;
3970                 return;
3971         }
3972         /*
3973          * For FCoE Mode: fill in all the topology information we need and call
3974          * the READ_TOPOLOGY completion routine to continue without actually
3975          * sending the READ_TOPOLOGY mailbox command to the port.
3976          */
3977         /* Parse and translate status field */
3978         mb = &pmb->u.mb;
3979         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3980 
3981         /* Parse and translate link attention fields */
3982         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3983         la->eventTag = acqe_link->event_tag;
3984         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3985         bf_set(lpfc_mbx_read_top_link_spd, la,
3986                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3987 
3988         /* Fake the the following irrelvant fields */
3989         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3990         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3991         bf_set(lpfc_mbx_read_top_il, la, 0);
3992         bf_set(lpfc_mbx_read_top_pb, la, 0);
3993         bf_set(lpfc_mbx_read_top_fa, la, 0);
3994         bf_set(lpfc_mbx_read_top_mm, la, 0);
3995 
3996         /* Invoke the lpfc_handle_latt mailbox command callback function */
3997         lpfc_mbx_cmpl_read_topology(phba, pmb);
3998 
3999         return;
4000 
4001 out_free_dmabuf:
4002         kfree(mp);
4003 out_free_pmb:
4004         mempool_free(pmb, phba->mbox_mem_pool);
4005 }
4006 
4007 /**
4008  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4009  * @phba: pointer to lpfc hba data structure.
4010  * @acqe_fc: pointer to the async fc completion queue entry.
4011  *
4012  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4013  * that the event was received and then issue a read_topology mailbox command so
4014  * that the rest of the driver will treat it the same as SLI3.
4015  **/
4016 static void
4017 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4018 {
4019         struct lpfc_dmabuf *mp;
4020         LPFC_MBOXQ_t *pmb;
4021         int rc;
4022 
4023         if (bf_get(lpfc_trailer_type, acqe_fc) !=
4024             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4025                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4026                                 "2895 Non FC link Event detected.(%d)\n",
4027                                 bf_get(lpfc_trailer_type, acqe_fc));
4028                 return;
4029         }
4030         /* Keep the link status for extra SLI4 state machine reference */
4031         phba->sli4_hba.link_state.speed =
4032                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4033                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4034         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4035         phba->sli4_hba.link_state.topology =
4036                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4037         phba->sli4_hba.link_state.status =
4038                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4039         phba->sli4_hba.link_state.type =
4040                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4041         phba->sli4_hba.link_state.number =
4042                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4043         phba->sli4_hba.link_state.fault =
4044                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4045         phba->sli4_hba.link_state.logical_speed =
4046                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4047         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4048                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4049                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4050                         "%dMbps Fault:%d\n",
4051                         phba->sli4_hba.link_state.speed,
4052                         phba->sli4_hba.link_state.topology,
4053                         phba->sli4_hba.link_state.status,
4054                         phba->sli4_hba.link_state.type,
4055                         phba->sli4_hba.link_state.number,
4056                         phba->sli4_hba.link_state.logical_speed,
4057                         phba->sli4_hba.link_state.fault);
4058         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4059         if (!pmb) {
4060                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4061                                 "2897 The mboxq allocation failed\n");
4062                 return;
4063         }
4064         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4065         if (!mp) {
4066                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4067                                 "2898 The lpfc_dmabuf allocation failed\n");
4068                 goto out_free_pmb;
4069         }
4070         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4071         if (!mp->virt) {
4072                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4073                                 "2899 The mbuf allocation failed\n");
4074                 goto out_free_dmabuf;
4075         }
4076 
4077         /* Cleanup any outstanding ELS commands */
4078         lpfc_els_flush_all_cmd(phba);
4079 
4080         /* Block ELS IOCBs until we have done process link event */
4081         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4082 
4083         /* Update link event statistics */
4084         phba->sli.slistat.link_event++;
4085 
4086         /* Create lpfc_handle_latt mailbox command from link ACQE */
4087         lpfc_read_topology(phba, pmb, mp);
4088         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4089         pmb->vport = phba->pport;
4090 
4091         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4092         if (rc == MBX_NOT_FINISHED)
4093                 goto out_free_dmabuf;
4094         return;
4095 
4096 out_free_dmabuf:
4097         kfree(mp);
4098 out_free_pmb:
4099         mempool_free(pmb, phba->mbox_mem_pool);
4100 }
4101 
4102 /**
4103  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4104  * @phba: pointer to lpfc hba data structure.
4105  * @acqe_fc: pointer to the async SLI completion queue entry.
4106  *
4107  * This routine is to handle the SLI4 asynchronous SLI events.
4108  **/
4109 static void
4110 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4111 {
4112         char port_name;
4113         char message[128];
4114         uint8_t status;
4115         uint8_t evt_type;
4116         struct temp_event temp_event_data;
4117         struct lpfc_acqe_misconfigured_event *misconfigured;
4118         struct Scsi_Host  *shost;
4119 
4120         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4121 
4122         /* Special case Lancer */
4123         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
4124                  LPFC_SLI_INTF_IF_TYPE_2) {
4125                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4126                                 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4127                                 "x%08x SLI Event Type:%d\n",
4128                                 acqe_sli->event_data1, acqe_sli->event_data2,
4129                                 evt_type);
4130                 return;
4131         }
4132 
4133         port_name = phba->Port[0];
4134         if (port_name == 0x00)
4135                 port_name = '?'; /* get port name is empty */
4136 
4137         switch (evt_type) {
4138         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4139                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4140                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4141                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4142 
4143                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4144                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4145                                 acqe_sli->event_data1, port_name);
4146 
4147                 shost = lpfc_shost_from_vport(phba->pport);
4148                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4149                                           sizeof(temp_event_data),
4150                                           (char *)&temp_event_data,
4151                                           SCSI_NL_VID_TYPE_PCI
4152                                           | PCI_VENDOR_ID_EMULEX);
4153                 break;
4154         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4155                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4156                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4157                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4158 
4159                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4160                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4161                                 acqe_sli->event_data1, port_name);
4162 
4163                 shost = lpfc_shost_from_vport(phba->pport);
4164                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4165                                           sizeof(temp_event_data),
4166                                           (char *)&temp_event_data,
4167                                           SCSI_NL_VID_TYPE_PCI
4168                                           | PCI_VENDOR_ID_EMULEX);
4169                 break;
4170         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4171                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4172                                         &acqe_sli->event_data1;
4173 
4174                 /* fetch the status for this port */
4175                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4176                 case LPFC_LINK_NUMBER_0:
4177                         status = bf_get(lpfc_sli_misconfigured_port0,
4178                                         &misconfigured->theEvent);
4179                         break;
4180                 case LPFC_LINK_NUMBER_1:
4181                         status = bf_get(lpfc_sli_misconfigured_port1,
4182                                         &misconfigured->theEvent);
4183                         break;
4184                 case LPFC_LINK_NUMBER_2:
4185                         status = bf_get(lpfc_sli_misconfigured_port2,
4186                                         &misconfigured->theEvent);
4187                         break;
4188                 case LPFC_LINK_NUMBER_3:
4189                         status = bf_get(lpfc_sli_misconfigured_port3,
4190                                         &misconfigured->theEvent);
4191                         break;
4192                 default:
4193                         status = ~LPFC_SLI_EVENT_STATUS_VALID;
4194                         break;
4195                 }
4196 
4197                 switch (status) {
4198                 case LPFC_SLI_EVENT_STATUS_VALID:
4199                         return; /* no message if the sfp is okay */
4200                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4201                         sprintf(message, "Optics faulted/incorrectly "
4202                                 "installed/not installed - Reseat optics, "
4203                                 "if issue not resolved, replace.");
4204                         break;
4205                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4206                         sprintf(message,
4207                                 "Optics of two types installed - Remove one "
4208                                 "optic or install matching pair of optics.");
4209                         break;
4210                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4211                         sprintf(message, "Incompatible optics - Replace with "
4212                                 "compatible optics for card to function.");
4213                         break;
4214                 default:
4215                         /* firmware is reporting a status we don't know about */
4216                         sprintf(message, "Unknown event status x%02x", status);
4217                         break;
4218                 }
4219 
4220                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4221                                 "3176 Misconfigured Physical Port - "
4222                                 "Port Name %c %s\n", port_name, message);
4223                 break;
4224         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4225                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4226                                 "3192 Remote DPort Test Initiated - "
4227                                 "Event Data1:x%08x Event Data2: x%08x\n",
4228                                 acqe_sli->event_data1, acqe_sli->event_data2);
4229                 break;
4230         default:
4231                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4232                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4233                                 "x%08x SLI Event Type:%d\n",
4234                                 acqe_sli->event_data1, acqe_sli->event_data2,
4235                                 evt_type);
4236                 break;
4237         }
4238 }
4239 
4240 /**
4241  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4242  * @vport: pointer to vport data structure.
4243  *
4244  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4245  * response to a CVL event.
4246  *
4247  * Return the pointer to the ndlp with the vport if successful, otherwise
4248  * return NULL.
4249  **/
4250 static struct lpfc_nodelist *
4251 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4252 {
4253         struct lpfc_nodelist *ndlp;
4254         struct Scsi_Host *shost;
4255         struct lpfc_hba *phba;
4256 
4257         if (!vport)
4258                 return NULL;
4259         phba = vport->phba;
4260         if (!phba)
4261                 return NULL;
4262         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4263         if (!ndlp) {
4264                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4265                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4266                 if (!ndlp)
4267                         return 0;
4268                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4269                 /* Set the node type */
4270                 ndlp->nlp_type |= NLP_FABRIC;
4271                 /* Put ndlp onto node list */
4272                 lpfc_enqueue_node(vport, ndlp);
4273         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4274                 /* re-setup ndlp without removing from node list */
4275                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4276                 if (!ndlp)
4277                         return 0;
4278         }
4279         if ((phba->pport->port_state < LPFC_FLOGI) &&
4280                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4281                 return NULL;
4282         /* If virtual link is not yet instantiated ignore CVL */
4283         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4284                 && (vport->port_state != LPFC_VPORT_FAILED))
4285                 return NULL;
4286         shost = lpfc_shost_from_vport(vport);
4287         if (!shost)
4288                 return NULL;
4289         lpfc_linkdown_port(vport);
4290         lpfc_cleanup_pending_mbox(vport);
4291         spin_lock_irq(shost->host_lock);
4292         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4293         spin_unlock_irq(shost->host_lock);
4294 
4295         return ndlp;
4296 }
4297 
4298 /**
4299  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4300  * @vport: pointer to lpfc hba data structure.
4301  *
4302  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4303  * response to a FCF dead event.
4304  **/
4305 static void
4306 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4307 {
4308         struct lpfc_vport **vports;
4309         int i;
4310 
4311         vports = lpfc_create_vport_work_array(phba);
4312         if (vports)
4313                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4314                         lpfc_sli4_perform_vport_cvl(vports[i]);
4315         lpfc_destroy_vport_work_array(phba, vports);
4316 }
4317 
4318 /**
4319  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4320  * @phba: pointer to lpfc hba data structure.
4321  * @acqe_link: pointer to the async fcoe completion queue entry.
4322  *
4323  * This routine is to handle the SLI4 asynchronous fcoe event.
4324  **/
4325 static void
4326 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4327                         struct lpfc_acqe_fip *acqe_fip)
4328 {
4329         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4330         int rc;
4331         struct lpfc_vport *vport;
4332         struct lpfc_nodelist *ndlp;
4333         struct Scsi_Host  *shost;
4334         int active_vlink_present;
4335         struct lpfc_vport **vports;
4336         int i;
4337 
4338         phba->fc_eventTag = acqe_fip->event_tag;
4339         phba->fcoe_eventtag = acqe_fip->event_tag;
4340         switch (event_type) {
4341         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4342         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4343                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4344                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4345                                         LOG_DISCOVERY,
4346                                         "2546 New FCF event, evt_tag:x%x, "
4347                                         "index:x%x\n",
4348                                         acqe_fip->event_tag,
4349                                         acqe_fip->index);
4350                 else
4351                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4352                                         LOG_DISCOVERY,
4353                                         "2788 FCF param modified event, "
4354                                         "evt_tag:x%x, index:x%x\n",
4355                                         acqe_fip->event_tag,
4356                                         acqe_fip->index);
4357                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4358                         /*
4359                          * During period of FCF discovery, read the FCF
4360                          * table record indexed by the event to update
4361                          * FCF roundrobin failover eligible FCF bmask.
4362                          */
4363                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4364                                         LOG_DISCOVERY,
4365                                         "2779 Read FCF (x%x) for updating "
4366                                         "roundrobin FCF failover bmask\n",
4367                                         acqe_fip->index);
4368                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4369                 }
4370 
4371                 /* If the FCF discovery is in progress, do nothing. */
4372                 spin_lock_irq(&phba->hbalock);
4373                 if (phba->hba_flag & FCF_TS_INPROG) {
4374                         spin_unlock_irq(&phba->hbalock);
4375                         break;
4376                 }
4377                 /* If fast FCF failover rescan event is pending, do nothing */
4378                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4379                         spin_unlock_irq(&phba->hbalock);
4380                         break;
4381                 }
4382 
4383                 /* If the FCF has been in discovered state, do nothing. */
4384                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4385                         spin_unlock_irq(&phba->hbalock);
4386                         break;
4387                 }
4388                 spin_unlock_irq(&phba->hbalock);
4389 
4390                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4391                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4392                                 "2770 Start FCF table scan per async FCF "
4393                                 "event, evt_tag:x%x, index:x%x\n",
4394                                 acqe_fip->event_tag, acqe_fip->index);
4395                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4396                                                      LPFC_FCOE_FCF_GET_FIRST);
4397                 if (rc)
4398                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4399                                         "2547 Issue FCF scan read FCF mailbox "
4400                                         "command failed (x%x)\n", rc);
4401                 break;
4402 
4403         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4404                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4405                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4406                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4407                         acqe_fip->event_tag);
4408                 break;
4409 
4410         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4411                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4412                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4413                         "2549 FCF (x%x) disconnected from network, "
4414                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4415                 /*
4416                  * If we are in the middle of FCF failover process, clear
4417                  * the corresponding FCF bit in the roundrobin bitmap.
4418                  */
4419                 spin_lock_irq(&phba->hbalock);
4420                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4421                         spin_unlock_irq(&phba->hbalock);
4422                         /* Update FLOGI FCF failover eligible FCF bmask */
4423                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4424                         break;
4425                 }
4426                 spin_unlock_irq(&phba->hbalock);
4427 
4428                 /* If the event is not for currently used fcf do nothing */
4429                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4430                         break;
4431 
4432                 /*
4433                  * Otherwise, request the port to rediscover the entire FCF
4434                  * table for a fast recovery from case that the current FCF
4435                  * is no longer valid as we are not in the middle of FCF
4436                  * failover process already.
4437                  */
4438                 spin_lock_irq(&phba->hbalock);
4439                 /* Mark the fast failover process in progress */
4440                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4441                 spin_unlock_irq(&phba->hbalock);
4442 
4443                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4444                                 "2771 Start FCF fast failover process due to "
4445                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4446                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4447                 rc = lpfc_sli4_redisc_fcf_table(phba);
4448                 if (rc) {
4449                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4450                                         LOG_DISCOVERY,
4451                                         "2772 Issue FCF rediscover mabilbox "
4452                                         "command failed, fail through to FCF "
4453                                         "dead event\n");
4454                         spin_lock_irq(&phba->hbalock);
4455                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4456                         spin_unlock_irq(&phba->hbalock);
4457                         /*
4458                          * Last resort will fail over by treating this
4459                          * as a link down to FCF registration.
4460                          */
4461                         lpfc_sli4_fcf_dead_failthrough(phba);
4462                 } else {
4463                         /* Reset FCF roundrobin bmask for new discovery */
4464                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4465                         /*
4466                          * Handling fast FCF failover to a DEAD FCF event is
4467                          * considered equalivant to receiving CVL to all vports.
4468                          */
4469                         lpfc_sli4_perform_all_vport_cvl(phba);
4470                 }
4471                 break;
4472         case LPFC_FIP_EVENT_TYPE_CVL:
4473                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4474                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4475                         "2718 Clear Virtual Link Received for VPI 0x%x"
4476                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4477 
4478                 vport = lpfc_find_vport_by_vpid(phba,
4479                                                 acqe_fip->index);
4480                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4481                 if (!ndlp)
4482                         break;
4483                 active_vlink_present = 0;
4484 
4485                 vports = lpfc_create_vport_work_array(phba);
4486                 if (vports) {
4487                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4488                                         i++) {
4489                                 if ((!(vports[i]->fc_flag &
4490                                         FC_VPORT_CVL_RCVD)) &&
4491                                         (vports[i]->port_state > LPFC_FDISC)) {
4492                                         active_vlink_present = 1;
4493                                         break;
4494                                 }
4495                         }
4496                         lpfc_destroy_vport_work_array(phba, vports);
4497                 }
4498 
4499                 /*
4500                  * Don't re-instantiate if vport is marked for deletion.
4501                  * If we are here first then vport_delete is going to wait
4502                  * for discovery to complete.
4503                  */
4504                 if (!(vport->load_flag & FC_UNLOADING) &&
4505                                         active_vlink_present) {
4506                         /*
4507                          * If there are other active VLinks present,
4508                          * re-instantiate the Vlink using FDISC.
4509                          */
4510                         mod_timer(&ndlp->nlp_delayfunc,
4511                                   jiffies + msecs_to_jiffies(1000));
4512                         shost = lpfc_shost_from_vport(vport);
4513                         spin_lock_irq(shost->host_lock);
4514                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4515                         spin_unlock_irq(shost->host_lock);
4516                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4517                         vport->port_state = LPFC_FDISC;
4518                 } else {
4519                         /*
4520                          * Otherwise, we request port to rediscover
4521                          * the entire FCF table for a fast recovery
4522                          * from possible case that the current FCF
4523                          * is no longer valid if we are not already
4524                          * in the FCF failover process.
4525                          */
4526                         spin_lock_irq(&phba->hbalock);
4527                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4528                                 spin_unlock_irq(&phba->hbalock);
4529                                 break;
4530                         }
4531                         /* Mark the fast failover process in progress */
4532                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4533                         spin_unlock_irq(&phba->hbalock);
4534                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4535                                         LOG_DISCOVERY,
4536                                         "2773 Start FCF failover per CVL, "
4537                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4538                         rc = lpfc_sli4_redisc_fcf_table(phba);
4539                         if (rc) {
4540                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4541                                                 LOG_DISCOVERY,
4542                                                 "2774 Issue FCF rediscover "
4543                                                 "mabilbox command failed, "
4544                                                 "through to CVL event\n");
4545                                 spin_lock_irq(&phba->hbalock);
4546                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4547                                 spin_unlock_irq(&phba->hbalock);
4548                                 /*
4549                                  * Last resort will be re-try on the
4550                                  * the current registered FCF entry.
4551                                  */
4552                                 lpfc_retry_pport_discovery(phba);
4553                         } else
4554                                 /*
4555                                  * Reset FCF roundrobin bmask for new
4556                                  * discovery.
4557                                  */
4558                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4559                 }
4560                 break;
4561         default:
4562                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4563                         "0288 Unknown FCoE event type 0x%x event tag "
4564                         "0x%x\n", event_type, acqe_fip->event_tag);
4565                 break;
4566         }
4567 }
4568 
4569 /**
4570  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4571  * @phba: pointer to lpfc hba data structure.
4572  * @acqe_link: pointer to the async dcbx completion queue entry.
4573  *
4574  * This routine is to handle the SLI4 asynchronous dcbx event.
4575  **/
4576 static void
4577 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4578                          struct lpfc_acqe_dcbx *acqe_dcbx)
4579 {
4580         phba->fc_eventTag = acqe_dcbx->event_tag;
4581         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4582                         "0290 The SLI4 DCBX asynchronous event is not "
4583                         "handled yet\n");
4584 }
4585 
4586 /**
4587  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4588  * @phba: pointer to lpfc hba data structure.
4589  * @acqe_link: pointer to the async grp5 completion queue entry.
4590  *
4591  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4592  * is an asynchronous notified of a logical link speed change.  The Port
4593  * reports the logical link speed in units of 10Mbps.
4594  **/
4595 static void
4596 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4597                          struct lpfc_acqe_grp5 *acqe_grp5)
4598 {
4599         uint16_t prev_ll_spd;
4600 
4601         phba->fc_eventTag = acqe_grp5->event_tag;
4602         phba->fcoe_eventtag = acqe_grp5->event_tag;
4603         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4604         phba->sli4_hba.link_state.logical_speed =
4605                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4606         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4607                         "2789 GRP5 Async Event: Updating logical link speed "
4608                         "from %dMbps to %dMbps\n", prev_ll_spd,
4609                         phba->sli4_hba.link_state.logical_speed);
4610 }
4611 
4612 /**
4613  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4614  * @phba: pointer to lpfc hba data structure.
4615  *
4616  * This routine is invoked by the worker thread to process all the pending
4617  * SLI4 asynchronous events.
4618  **/
4619 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4620 {
4621         struct lpfc_cq_event *cq_event;
4622 
4623         /* First, declare the async event has been handled */
4624         spin_lock_irq(&phba->hbalock);
4625         phba->hba_flag &= ~ASYNC_EVENT;
4626         spin_unlock_irq(&phba->hbalock);
4627         /* Now, handle all the async events */
4628         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4629                 /* Get the first event from the head of the event queue */
4630                 spin_lock_irq(&phba->hbalock);
4631                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4632                                  cq_event, struct lpfc_cq_event, list);
4633                 spin_unlock_irq(&phba->hbalock);
4634                 /* Process the asynchronous event */
4635                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4636                 case LPFC_TRAILER_CODE_LINK:
4637                         lpfc_sli4_async_link_evt(phba,
4638                                                  &cq_event->cqe.acqe_link);
4639                         break;
4640                 case LPFC_TRAILER_CODE_FCOE:
4641                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4642                         break;
4643                 case LPFC_TRAILER_CODE_DCBX:
4644                         lpfc_sli4_async_dcbx_evt(phba,
4645                                                  &cq_event->cqe.acqe_dcbx);
4646                         break;
4647                 case LPFC_TRAILER_CODE_GRP5:
4648                         lpfc_sli4_async_grp5_evt(phba,
4649                                                  &cq_event->cqe.acqe_grp5);
4650                         break;
4651                 case LPFC_TRAILER_CODE_FC:
4652                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4653                         break;
4654                 case LPFC_TRAILER_CODE_SLI:
4655                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4656                         break;
4657                 default:
4658                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4659                                         "1804 Invalid asynchrous event code: "
4660                                         "x%x\n", bf_get(lpfc_trailer_code,
4661                                         &cq_event->cqe.mcqe_cmpl));
4662                         break;
4663                 }
4664                 /* Free the completion event processed to the free pool */
4665                 lpfc_sli4_cq_event_release(phba, cq_event);
4666         }
4667 }
4668 
4669 /**
4670  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4671  * @phba: pointer to lpfc hba data structure.
4672  *
4673  * This routine is invoked by the worker thread to process FCF table
4674  * rediscovery pending completion event.
4675  **/
4676 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4677 {
4678         int rc;
4679 
4680         spin_lock_irq(&phba->hbalock);
4681         /* Clear FCF rediscovery timeout event */
4682         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4683         /* Clear driver fast failover FCF record flag */
4684         phba->fcf.failover_rec.flag = 0;
4685         /* Set state for FCF fast failover */
4686         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4687         spin_unlock_irq(&phba->hbalock);
4688 
4689         /* Scan FCF table from the first entry to re-discover SAN */
4690         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4691                         "2777 Start post-quiescent FCF table scan\n");
4692         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4693         if (rc)
4694                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4695                                 "2747 Issue FCF scan read FCF mailbox "
4696                                 "command failed 0x%x\n", rc);
4697 }
4698 
4699 /**
4700  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4701  * @phba: pointer to lpfc hba data structure.
4702  * @dev_grp: The HBA PCI-Device group number.
4703  *
4704  * This routine is invoked to set up the per HBA PCI-Device group function
4705  * API jump table entries.
4706  *
4707  * Return: 0 if success, otherwise -ENODEV
4708  **/
4709 int
4710 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4711 {
4712         int rc;
4713 
4714         /* Set up lpfc PCI-device group */
4715         phba->pci_dev_grp = dev_grp;
4716 
4717         /* The LPFC_PCI_DEV_OC uses SLI4 */
4718         if (dev_grp == LPFC_PCI_DEV_OC)
4719                 phba->sli_rev = LPFC_SLI_REV4;
4720 
4721         /* Set up device INIT API function jump table */
4722         rc = lpfc_init_api_table_setup(phba, dev_grp);
4723         if (rc)
4724                 return -ENODEV;
4725         /* Set up SCSI API function jump table */
4726         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4727         if (rc)
4728                 return -ENODEV;
4729         /* Set up SLI API function jump table */
4730         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4731         if (rc)
4732                 return -ENODEV;
4733         /* Set up MBOX API function jump table */
4734         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4735         if (rc)
4736                 return -ENODEV;
4737 
4738         return 0;
4739 }
4740 
4741 /**
4742  * lpfc_log_intr_mode - Log the active interrupt mode
4743  * @phba: pointer to lpfc hba data structure.
4744  * @intr_mode: active interrupt mode adopted.
4745  *
4746  * This routine it invoked to log the currently used active interrupt mode
4747  * to the device.
4748  **/
4749 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4750 {
4751         switch (intr_mode) {
4752         case 0:
4753                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4754                                 "0470 Enable INTx interrupt mode.\n");
4755                 break;
4756         case 1:
4757                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4758                                 "0481 Enabled MSI interrupt mode.\n");
4759                 break;
4760         case 2:
4761                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4762                                 "0480 Enabled MSI-X interrupt mode.\n");
4763                 break;
4764         default:
4765                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4766                                 "0482 Illegal interrupt mode.\n");
4767                 break;
4768         }
4769         return;
4770 }
4771 
4772 /**
4773  * lpfc_enable_pci_dev - Enable a generic PCI device.
4774  * @phba: pointer to lpfc hba data structure.
4775  *
4776  * This routine is invoked to enable the PCI device that is common to all
4777  * PCI devices.
4778  *
4779  * Return codes
4780  *      0 - successful
4781  *      other values - error
4782  **/
4783 static int
4784 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4785 {
4786         struct pci_dev *pdev;
4787         int bars = 0;
4788 
4789         /* Obtain PCI device reference */
4790         if (!phba->pcidev)
4791                 goto out_error;
4792         else
4793                 pdev = phba->pcidev;
4794         /* Select PCI BARs */
4795         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4796         /* Enable PCI device */
4797         if (pci_enable_device_mem(pdev))
4798                 goto out_error;
4799         /* Request PCI resource for the device */
4800         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4801                 goto out_disable_device;
4802         /* Set up device as PCI master and save state for EEH */
4803         pci_set_master(pdev);
4804         pci_try_set_mwi(pdev);
4805         pci_save_state(pdev);
4806 
4807         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4808         if (pci_is_pcie(pdev))
4809                 pdev->needs_freset = 1;
4810 
4811         return 0;
4812 
4813 out_disable_device:
4814         pci_disable_device(pdev);
4815 out_error:
4816         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4817                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4818         return -ENODEV;
4819 }
4820 
4821 /**
4822  * lpfc_disable_pci_dev - Disable a generic PCI device.
4823  * @phba: pointer to lpfc hba data structure.
4824  *
4825  * This routine is invoked to disable the PCI device that is common to all
4826  * PCI devices.
4827  **/
4828 static void
4829 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4830 {
4831         struct pci_dev *pdev;
4832         int bars;
4833 
4834         /* Obtain PCI device reference */
4835         if (!phba->pcidev)
4836                 return;
4837         else
4838                 pdev = phba->pcidev;
4839         /* Select PCI BARs */
4840         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4841         /* Release PCI resource and disable PCI device */
4842         pci_release_selected_regions(pdev, bars);
4843         pci_disable_device(pdev);
4844 
4845         return;
4846 }
4847 
4848 /**
4849  * lpfc_reset_hba - Reset a hba
4850  * @phba: pointer to lpfc hba data structure.
4851  *
4852  * This routine is invoked to reset a hba device. It brings the HBA
4853  * offline, performs a board restart, and then brings the board back
4854  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4855  * on outstanding mailbox commands.
4856  **/
4857 void
4858 lpfc_reset_hba(struct lpfc_hba *phba)
4859 {
4860         /* If resets are disabled then set error state and return. */
4861         if (!phba->cfg_enable_hba_reset) {
4862                 phba->link_state = LPFC_HBA_ERROR;
4863                 return;
4864         }
4865         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4866                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4867         else
4868                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4869         lpfc_offline(phba);
4870         lpfc_sli_brdrestart(phba);
4871         lpfc_online(phba);
4872         lpfc_unblock_mgmt_io(phba);
4873 }
4874 
4875 /**
4876  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4877  * @phba: pointer to lpfc hba data structure.
4878  *
4879  * This function enables the PCI SR-IOV virtual functions to a physical
4880  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4881  * enable the number of virtual functions to the physical function. As
4882  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4883  * API call does not considered as an error condition for most of the device.
4884  **/
4885 uint16_t
4886 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4887 {
4888         struct pci_dev *pdev = phba->pcidev;
4889         uint16_t nr_virtfn;
4890         int pos;
4891 
4892         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4893         if (pos == 0)
4894                 return 0;
4895 
4896         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4897         return nr_virtfn;
4898 }
4899 
4900 /**
4901  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4902  * @phba: pointer to lpfc hba data structure.
4903  * @nr_vfn: number of virtual functions to be enabled.
4904  *
4905  * This function enables the PCI SR-IOV virtual functions to a physical
4906  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4907  * enable the number of virtual functions to the physical function. As
4908  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4909  * API call does not considered as an error condition for most of the device.
4910  **/
4911 int
4912 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4913 {
4914         struct pci_dev *pdev = phba->pcidev;
4915         uint16_t max_nr_vfn;
4916         int rc;
4917 
4918         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4919         if (nr_vfn > max_nr_vfn) {
4920                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4921                                 "3057 Requested vfs (%d) greater than "
4922                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4923                 return -EINVAL;
4924         }
4925 
4926         rc = pci_enable_sriov(pdev, nr_vfn);
4927         if (rc) {
4928                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4929                                 "2806 Failed to enable sriov on this device "
4930                                 "with vfn number nr_vf:%d, rc:%d\n",
4931                                 nr_vfn, rc);
4932         } else
4933                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4934                                 "2807 Successful enable sriov on this device "
4935                                 "with vfn number nr_vf:%d\n", nr_vfn);
4936         return rc;
4937 }
4938 
4939 /**
4940  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4941  * @phba: pointer to lpfc hba data structure.
4942  *
4943  * This routine is invoked to set up the driver internal resources specific to
4944  * support the SLI-3 HBA device it attached to.
4945  *
4946  * Return codes
4947  *      0 - successful
4948  *      other values - error
4949  **/
4950 static int
4951 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4952 {
4953         struct lpfc_sli *psli;
4954         int rc;
4955 
4956         /*
4957          * Initialize timers used by driver
4958          */
4959 
4960         /* Heartbeat timer */
4961         init_timer(&phba->hb_tmofunc);
4962         phba->hb_tmofunc.function = lpfc_hb_timeout;
4963         phba->hb_tmofunc.data = (unsigned long)phba;
4964 
4965         psli = &phba->sli;
4966         /* MBOX heartbeat timer */
4967         init_timer(&psli->mbox_tmo);
4968         psli->mbox_tmo.function = lpfc_mbox_timeout;
4969         psli->mbox_tmo.data = (unsigned long) phba;
4970         /* FCP polling mode timer */
4971         init_timer(&phba->fcp_poll_timer);
4972         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4973         phba->fcp_poll_timer.data = (unsigned long) phba;
4974         /* Fabric block timer */
4975         init_timer(&phba->fabric_block_timer);
4976         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4977         phba->fabric_block_timer.data = (unsigned long) phba;
4978         /* EA polling mode timer */
4979         init_timer(&phba->eratt_poll);
4980         phba->eratt_poll.function = lpfc_poll_eratt;
4981         phba->eratt_poll.data = (unsigned long) phba;
4982 
4983         /* Host attention work mask setup */
4984         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4985         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4986 
4987         /* Get all the module params for configuring this host */
4988         lpfc_get_cfgparam(phba);
4989         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4990                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4991                 /* check for menlo minimum sg count */
4992                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4993                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4994         }
4995 
4996         if (!phba->sli.ring)
4997                 phba->sli.ring = kzalloc(LPFC_SLI3_MAX_RING *
4998                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4999         if (!phba->sli.ring)
5000                 return -ENOMEM;
5001 
5002         /*
5003          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5004          * used to create the sg_dma_buf_pool must be dynamically calculated.
5005          */
5006 
5007         /* Initialize the host templates the configured values. */
5008         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5009         lpfc_template_s3.sg_tablesize = phba->cfg_sg_seg_cnt;
5010 
5011         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5012         if (phba->cfg_enable_bg) {
5013                 /*
5014                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5015                  * the FCP rsp, and a BDE for each. Sice we have no control
5016                  * over how many protection data segments the SCSI Layer
5017                  * will hand us (ie: there could be one for every block
5018                  * in the IO), we just allocate enough BDEs to accomidate
5019                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5020                  * minimize the risk of running out.
5021                  */
5022                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5023                         sizeof(struct fcp_rsp) +
5024                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5025 
5026                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5027                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5028 
5029                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5030                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5031         } else {
5032                 /*
5033                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5034                  * the FCP rsp, a BDE for each, and a BDE for up to
5035                  * cfg_sg_seg_cnt data segments.
5036                  */
5037                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5038                         sizeof(struct fcp_rsp) +
5039                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5040 
5041                 /* Total BDEs in BPL for scsi_sg_list */
5042                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5043         }
5044 
5045         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5046                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5047                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5048                         phba->cfg_total_seg_cnt);
5049 
5050         phba->max_vpi = LPFC_MAX_VPI;
5051         /* This will be set to correct value after config_port mbox */
5052         phba->max_vports = 0;
5053 
5054         /*
5055          * Initialize the SLI Layer to run with lpfc HBAs.
5056          */
5057         lpfc_sli_setup(phba);
5058         lpfc_sli_queue_setup(phba);
5059 
5060         /* Allocate device driver memory */
5061         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5062                 return -ENOMEM;
5063 
5064         /*
5065          * Enable sr-iov virtual functions if supported and configured
5066          * through the module parameter.
5067          */
5068         if (phba->cfg_sriov_nr_virtfn > 0) {
5069                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5070                                                  phba->cfg_sriov_nr_virtfn);
5071                 if (rc) {
5072                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5073                                         "2808 Requested number of SR-IOV "
5074                                         "virtual functions (%d) is not "
5075                                         "supported\n",
5076                                         phba->cfg_sriov_nr_virtfn);
5077                         phba->cfg_sriov_nr_virtfn = 0;
5078                 }
5079         }
5080 
5081         return 0;
5082 }
5083 
5084 /**
5085  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5086  * @phba: pointer to lpfc hba data structure.
5087  *
5088  * This routine is invoked to unset the driver internal resources set up
5089  * specific for supporting the SLI-3 HBA device it attached to.
5090  **/
5091 static void
5092 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5093 {
5094         /* Free device driver memory allocated */
5095         lpfc_mem_free_all(phba);
5096 
5097         return;
5098 }
5099 
5100 /**
5101  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5102  * @phba: pointer to lpfc hba data structure.
5103  *
5104  * This routine is invoked to set up the driver internal resources specific to
5105  * support the SLI-4 HBA device it attached to.
5106  *
5107  * Return codes
5108  *      0 - successful
5109  *      other values - error
5110  **/
5111 static int
5112 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5113 {
5114         struct lpfc_vector_map_info *cpup;
5115         struct lpfc_sli *psli;
5116         LPFC_MBOXQ_t *mboxq;
5117         int rc, i, hbq_count, max_buf_size;
5118         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5119         struct lpfc_mqe *mqe;
5120         int longs;
5121         int fof_vectors = 0;
5122 
5123         /* Get all the module params for configuring this host */
5124         lpfc_get_cfgparam(phba);
5125 
5126         /* Before proceed, wait for POST done and device ready */
5127         rc = lpfc_sli4_post_status_check(phba);
5128         if (rc)
5129                 return -ENODEV;
5130 
5131         /*
5132          * Initialize timers used by driver
5133          */
5134 
5135         /* Heartbeat timer */
5136         init_timer(&phba->hb_tmofunc);
5137         phba->hb_tmofunc.function = lpfc_hb_timeout;
5138         phba->hb_tmofunc.data = (unsigned long)phba;
5139         init_timer(&phba->rrq_tmr);
5140         phba->rrq_tmr.function = lpfc_rrq_timeout;
5141         phba->rrq_tmr.data = (unsigned long)phba;
5142 
5143         psli = &phba->sli;
5144         /* MBOX heartbeat timer */
5145         init_timer(&psli->mbox_tmo);
5146         psli->mbox_tmo.function = lpfc_mbox_timeout;
5147         psli->mbox_tmo.data = (unsigned long) phba;
5148         /* Fabric block timer */
5149         init_timer(&phba->fabric_block_timer);
5150         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5151         phba->fabric_block_timer.data = (unsigned long) phba;
5152         /* EA polling mode timer */
5153         init_timer(&phba->eratt_poll);
5154         phba->eratt_poll.function = lpfc_poll_eratt;
5155         phba->eratt_poll.data = (unsigned long) phba;
5156         /* FCF rediscover timer */
5157         init_timer(&phba->fcf.redisc_wait);
5158         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5159         phba->fcf.redisc_wait.data = (unsigned long)phba;
5160 
5161         /*
5162          * Control structure for handling external multi-buffer mailbox
5163          * command pass-through.
5164          */
5165         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5166                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5167         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5168 
5169         phba->max_vpi = LPFC_MAX_VPI;
5170 
5171         /* This will be set to correct value after the read_config mbox */
5172         phba->max_vports = 0;
5173 
5174         /* Program the default value of vlan_id and fc_map */
5175         phba->valid_vlan = 0;
5176         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5177         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5178         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5179 
5180         /*
5181          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5182          * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5183          */
5184         if (!phba->sli.ring)
5185                 phba->sli.ring = kzalloc(
5186                         (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5187                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5188         if (!phba->sli.ring)
5189                 return -ENOMEM;
5190 
5191         /*
5192          * It doesn't matter what family our adapter is in, we are
5193          * limited to 2 Pages, 512 SGEs, for our SGL.
5194          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5195          */
5196         max_buf_size = (2 * SLI4_PAGE_SIZE);
5197         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5198                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5199 
5200         /*
5201          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5202          * used to create the sg_dma_buf_pool must be dynamically calculated.
5203          */
5204 
5205         if (phba->cfg_enable_bg) {
5206                 /*
5207                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5208                  * the FCP rsp, and a SGE for each. Sice we have no control
5209                  * over how many protection data segments the SCSI Layer
5210                  * will hand us (ie: there could be one for every block
5211                  * in the IO), we just allocate enough SGEs to accomidate
5212                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5213                  * minimize the risk of running out.
5214                  */
5215                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5216                         sizeof(struct fcp_rsp) + max_buf_size;
5217 
5218                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5219                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5220 
5221                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5222                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5223         } else {
5224                 /*
5225                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5226                  * the FCP rsp, a SGE for each, and a SGE for up to
5227                  * cfg_sg_seg_cnt data segments.
5228                  */
5229                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5230                         sizeof(struct fcp_rsp) +
5231                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5232 
5233                 /* Total SGEs for scsi_sg_list */
5234                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5235                 /*
5236                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5237                  * to post 1 page for the SGL.
5238                  */
5239         }
5240 
5241         /* Initialize the host templates with the updated values. */
5242         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5243         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5244 
5245         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5246                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5247         else
5248                 phba->cfg_sg_dma_buf_size =
5249                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5250 
5251         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5252                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5253                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5254                         phba->cfg_total_seg_cnt);
5255 
5256         /* Initialize buffer queue management fields */
5257         hbq_count = lpfc_sli_hbq_count();
5258         for (i = 0; i < hbq_count; ++i)
5259                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5260         INIT_LIST_HEAD(&phba->rb_pend_list);
5261         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5262         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5263 
5264         /*
5265          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5266          */
5267         /* Initialize the Abort scsi buffer list used by driver */
5268         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5269         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5270         /* This abort list used by worker thread */
5271         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5272 
5273         /*
5274          * Initialize driver internal slow-path work queues
5275          */
5276 
5277         /* Driver internel slow-path CQ Event pool */
5278         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5279         /* Response IOCB work queue list */
5280         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5281         /* Asynchronous event CQ Event work queue list */
5282         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5283         /* Fast-path XRI aborted CQ Event work queue list */
5284         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5285         /* Slow-path XRI aborted CQ Event work queue list */
5286         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5287         /* Receive queue CQ Event work queue list */
5288         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5289 
5290         /* Initialize extent block lists. */
5291         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5292         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5293         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5294         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5295 
5296         /* Initialize the driver internal SLI layer lists. */
5297         lpfc_sli_setup(phba);
5298         lpfc_sli_queue_setup(phba);
5299 
5300         /* Allocate device driver memory */
5301         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5302         if (rc)
5303                 return -ENOMEM;
5304 
5305         /* IF Type 2 ports get initialized now. */
5306         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5307             LPFC_SLI_INTF_IF_TYPE_2) {
5308                 rc = lpfc_pci_function_reset(phba);
5309                 if (unlikely(rc))
5310                         return -ENODEV;
5311                 phba->temp_sensor_support = 1;
5312         }
5313 
5314         /* Create the bootstrap mailbox command */
5315         rc = lpfc_create_bootstrap_mbox(phba);
5316         if (unlikely(rc))
5317                 goto out_free_mem;
5318 
5319         /* Set up the host's endian order with the device. */
5320         rc = lpfc_setup_endian_order(phba);
5321         if (unlikely(rc))
5322                 goto out_free_bsmbx;
5323 
5324         /* Set up the hba's configuration parameters. */
5325         rc = lpfc_sli4_read_config(phba);
5326         if (unlikely(rc))
5327                 goto out_free_bsmbx;
5328         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5329         if (unlikely(rc))
5330                 goto out_free_bsmbx;
5331 
5332         /* IF Type 0 ports get initialized now. */
5333         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5334             LPFC_SLI_INTF_IF_TYPE_0) {
5335                 rc = lpfc_pci_function_reset(phba);
5336                 if (unlikely(rc))
5337                         goto out_free_bsmbx;
5338         }
5339 
5340         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5341                                                        GFP_KERNEL);
5342         if (!mboxq) {
5343                 rc = -ENOMEM;
5344                 goto out_free_bsmbx;
5345         }
5346 
5347         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5348         lpfc_supported_pages(mboxq);
5349         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5350         if (!rc) {
5351                 mqe = &mboxq->u.mqe;
5352                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5353                        LPFC_MAX_SUPPORTED_PAGES);
5354                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5355                         switch (pn_page[i]) {
5356                         case LPFC_SLI4_PARAMETERS:
5357                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5358                                 break;
5359                         default:
5360                                 break;
5361                         }
5362                 }
5363                 /* Read the port's SLI4 Parameters capabilities if supported. */
5364                 if (phba->sli4_hba.pc_sli4_params.supported)
5365                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5366                 if (rc) {
5367                         mempool_free(mboxq, phba->mbox_mem_pool);
5368                         rc = -EIO;
5369                         goto out_free_bsmbx;
5370                 }
5371         }
5372         /*
5373          * Get sli4 parameters that override parameters from Port capabilities.
5374          * If this call fails, it isn't critical unless the SLI4 parameters come
5375          * back in conflict.
5376          */
5377         rc = lpfc_get_sli4_parameters(phba, mboxq);
5378         if (rc) {
5379                 if (phba->sli4_hba.extents_in_use &&
5380                     phba->sli4_hba.rpi_hdrs_in_use) {
5381                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5382                                 "2999 Unsupported SLI4 Parameters "
5383                                 "Extents and RPI headers enabled.\n");
5384                         goto out_free_bsmbx;
5385                 }
5386         }
5387         mempool_free(mboxq, phba->mbox_mem_pool);
5388 
5389         /* Verify OAS is supported */
5390         lpfc_sli4_oas_verify(phba);
5391         if (phba->cfg_fof)
5392                 fof_vectors = 1;
5393 
5394         /* Verify all the SLI4 queues */
5395         rc = lpfc_sli4_queue_verify(phba);
5396         if (rc)
5397                 goto out_free_bsmbx;
5398 
5399         /* Create driver internal CQE event pool */
5400         rc = lpfc_sli4_cq_event_pool_create(phba);
5401         if (rc)
5402                 goto out_free_bsmbx;
5403 
5404         /* Initialize sgl lists per host */
5405         lpfc_init_sgl_list(phba);
5406 
5407         /* Allocate and initialize active sgl array */
5408         rc = lpfc_init_active_sgl_array(phba);
5409         if (rc) {
5410                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5411                                 "1430 Failed to initialize sgl list.\n");
5412                 goto out_destroy_cq_event_pool;
5413         }
5414         rc = lpfc_sli4_init_rpi_hdrs(phba);
5415         if (rc) {
5416                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5417                                 "1432 Failed to initialize rpi headers.\n");
5418                 goto out_free_active_sgl;
5419         }
5420 
5421         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5422         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5423         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5424                                          GFP_KERNEL);
5425         if (!phba->fcf.fcf_rr_bmask) {
5426                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5427                                 "2759 Failed allocate memory for FCF round "
5428                                 "robin failover bmask\n");
5429                 rc = -ENOMEM;
5430                 goto out_remove_rpi_hdrs;
5431         }
5432 
5433         phba->sli4_hba.fcp_eq_hdl =
5434                         kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5435                             (fof_vectors + phba->cfg_fcp_io_channel)),
5436                             GFP_KERNEL);
5437         if (!phba->sli4_hba.fcp_eq_hdl) {
5438                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5439                                 "2572 Failed allocate memory for "
5440                                 "fast-path per-EQ handle array\n");
5441                 rc = -ENOMEM;
5442                 goto out_free_fcf_rr_bmask;
5443         }
5444 
5445         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5446                                   (fof_vectors +
5447                                    phba->cfg_fcp_io_channel)), GFP_KERNEL);
5448         if (!phba->sli4_hba.msix_entries) {
5449                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5450                                 "2573 Failed allocate memory for msi-x "
5451                                 "interrupt vector entries\n");
5452                 rc = -ENOMEM;
5453                 goto out_free_fcp_eq_hdl;
5454         }
5455 
5456         phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5457                                          phba->sli4_hba.num_present_cpu),
5458                                          GFP_KERNEL);
5459         if (!phba->sli4_hba.cpu_map) {
5460                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5461                                 "3327 Failed allocate memory for msi-x "
5462                                 "interrupt vector mapping\n");
5463                 rc = -ENOMEM;
5464                 goto out_free_msix;
5465         }
5466         if (lpfc_used_cpu == NULL) {
5467                 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5468                                          GFP_KERNEL);
5469                 if (!lpfc_used_cpu) {
5470                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5471                                         "3335 Failed allocate memory for msi-x "
5472                                         "interrupt vector mapping\n");
5473                         kfree(phba->sli4_hba.cpu_map);
5474                         rc = -ENOMEM;
5475                         goto out_free_msix;
5476                 }
5477                 for (i = 0; i < lpfc_present_cpu; i++)
5478                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5479         }
5480 
5481         /* Initialize io channels for round robin */
5482         cpup = phba->sli4_hba.cpu_map;
5483         rc = 0;
5484         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5485                 cpup->channel_id = rc;
5486                 rc++;
5487                 if (rc >= phba->cfg_fcp_io_channel)
5488                         rc = 0;
5489         }
5490 
5491         /*
5492          * Enable sr-iov virtual functions if supported and configured
5493          * through the module parameter.
5494          */
5495         if (phba->cfg_sriov_nr_virtfn > 0) {
5496                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5497                                                  phba->cfg_sriov_nr_virtfn);
5498                 if (rc) {
5499                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5500                                         "3020 Requested number of SR-IOV "
5501                                         "virtual functions (%d) is not "
5502                                         "supported\n",
5503                                         phba->cfg_sriov_nr_virtfn);
5504                         phba->cfg_sriov_nr_virtfn = 0;
5505                 }
5506         }
5507 
5508         return 0;
5509 
5510 out_free_msix:
5511         kfree(phba->sli4_hba.msix_entries);
5512 out_free_fcp_eq_hdl:
5513         kfree(phba->sli4_hba.fcp_eq_hdl);
5514 out_free_fcf_rr_bmask:
5515         kfree(phba->fcf.fcf_rr_bmask);
5516 out_remove_rpi_hdrs:
5517         lpfc_sli4_remove_rpi_hdrs(phba);
5518 out_free_active_sgl:
5519         lpfc_free_active_sgl(phba);
5520 out_destroy_cq_event_pool:
5521         lpfc_sli4_cq_event_pool_destroy(phba);
5522 out_free_bsmbx:
5523         lpfc_destroy_bootstrap_mbox(phba);
5524 out_free_mem:
5525         lpfc_mem_free(phba);
5526         return rc;
5527 }
5528 
5529 /**
5530  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5531  * @phba: pointer to lpfc hba data structure.
5532  *
5533  * This routine is invoked to unset the driver internal resources set up
5534  * specific for supporting the SLI-4 HBA device it attached to.
5535  **/
5536 static void
5537 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5538 {
5539         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5540 
5541         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5542         kfree(phba->sli4_hba.cpu_map);
5543         phba->sli4_hba.num_present_cpu = 0;
5544         phba->sli4_hba.num_online_cpu = 0;
5545         phba->sli4_hba.curr_disp_cpu = 0;
5546 
5547         /* Free memory allocated for msi-x interrupt vector entries */
5548         kfree(phba->sli4_hba.msix_entries);
5549 
5550         /* Free memory allocated for fast-path work queue handles */
5551         kfree(phba->sli4_hba.fcp_eq_hdl);
5552 
5553         /* Free the allocated rpi headers. */
5554         lpfc_sli4_remove_rpi_hdrs(phba);
5555         lpfc_sli4_remove_rpis(phba);
5556 
5557         /* Free eligible FCF index bmask */
5558         kfree(phba->fcf.fcf_rr_bmask);
5559 
5560         /* Free the ELS sgl list */
5561         lpfc_free_active_sgl(phba);
5562         lpfc_free_els_sgl_list(phba);
5563 
5564         /* Free the completion queue EQ event pool */
5565         lpfc_sli4_cq_event_release_all(phba);
5566         lpfc_sli4_cq_event_pool_destroy(phba);
5567 
5568         /* Release resource identifiers. */
5569         lpfc_sli4_dealloc_resource_identifiers(phba);
5570 
5571         /* Free the bsmbx region. */
5572         lpfc_destroy_bootstrap_mbox(phba);
5573 
5574         /* Free the SLI Layer memory with SLI4 HBAs */
5575         lpfc_mem_free_all(phba);
5576 
5577         /* Free the current connect table */
5578         list_for_each_entry_safe(conn_entry, next_conn_entry,
5579                 &phba->fcf_conn_rec_list, list) {
5580                 list_del_init(&conn_entry->list);
5581                 kfree(conn_entry);
5582         }
5583 
5584         return;
5585 }
5586 
5587 /**
5588  * lpfc_init_api_table_setup - Set up init api function jump table
5589  * @phba: The hba struct for which this call is being executed.
5590  * @dev_grp: The HBA PCI-Device group number.
5591  *
5592  * This routine sets up the device INIT interface API function jump table
5593  * in @phba struct.
5594  *
5595  * Returns: 0 - success, -ENODEV - failure.
5596  **/
5597 int
5598 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5599 {
5600         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5601         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5602         phba->lpfc_selective_reset = lpfc_selective_reset;
5603         switch (dev_grp) {
5604         case LPFC_PCI_DEV_LP:
5605                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5606                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5607                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5608                 break;
5609         case LPFC_PCI_DEV_OC:
5610                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5611                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5612                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5613                 break;
5614         default:
5615                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5616                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5617                                 dev_grp);
5618                 return -ENODEV;
5619                 break;
5620         }
5621         return 0;
5622 }
5623 
5624 /**
5625  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5626  * @phba: pointer to lpfc hba data structure.
5627  *
5628  * This routine is invoked to set up the driver internal resources before the
5629  * device specific resource setup to support the HBA device it attached to.
5630  *
5631  * Return codes
5632  *      0 - successful
5633  *      other values - error
5634  **/
5635 static int
5636 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5637 {
5638         /*
5639          * Driver resources common to all SLI revisions
5640          */
5641         atomic_set(&phba->fast_event_count, 0);
5642         spin_lock_init(&phba->hbalock);
5643 
5644         /* Initialize ndlp management spinlock */
5645         spin_lock_init(&phba->ndlp_lock);
5646 
5647         INIT_LIST_HEAD(&phba->port_list);
5648         INIT_LIST_HEAD(&phba->work_list);
5649         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5650 
5651         /* Initialize the wait queue head for the kernel thread */
5652         init_waitqueue_head(&phba->work_waitq);
5653 
5654         /* Initialize the scsi buffer list used by driver for scsi IO */
5655         spin_lock_init(&phba->scsi_buf_list_get_lock);
5656         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5657         spin_lock_init(&phba->scsi_buf_list_put_lock);
5658         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5659 
5660         /* Initialize the fabric iocb list */
5661         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5662 
5663         /* Initialize list to save ELS buffers */
5664         INIT_LIST_HEAD(&phba->elsbuf);
5665 
5666         /* Initialize FCF connection rec list */
5667         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5668 
5669         /* Initialize OAS configuration list */
5670         spin_lock_init(&phba->devicelock);
5671         INIT_LIST_HEAD(&phba->luns);
5672 
5673         return 0;
5674 }
5675 
5676 /**
5677  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5678  * @phba: pointer to lpfc hba data structure.
5679  *
5680  * This routine is invoked to set up the driver internal resources after the
5681  * device specific resource setup to support the HBA device it attached to.
5682  *
5683  * Return codes
5684  *      0 - successful
5685  *      other values - error
5686  **/
5687 static int
5688 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5689 {
5690         int error;
5691 
5692         /* Startup the kernel thread for this host adapter. */
5693         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5694                                           "lpfc_worker_%d", phba->brd_no);
5695         if (IS_ERR(phba->worker_thread)) {
5696                 error = PTR_ERR(phba->worker_thread);
5697                 return error;
5698         }
5699 
5700         return 0;
5701 }
5702 
5703 /**
5704  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5705  * @phba: pointer to lpfc hba data structure.
5706  *
5707  * This routine is invoked to unset the driver internal resources set up after
5708  * the device specific resource setup for supporting the HBA device it
5709  * attached to.
5710  **/
5711 static void
5712 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5713 {
5714         /* Stop kernel worker thread */
5715         kthread_stop(phba->worker_thread);
5716 }
5717 
5718 /**
5719  * lpfc_free_iocb_list - Free iocb list.
5720  * @phba: pointer to lpfc hba data structure.
5721  *
5722  * This routine is invoked to free the driver's IOCB list and memory.
5723  **/
5724 static void
5725 lpfc_free_iocb_list(struct lpfc_hba *phba)
5726 {
5727         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5728 
5729         spin_lock_irq(&phba->hbalock);
5730         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5731                                  &phba->lpfc_iocb_list, list) {
5732                 list_del(&iocbq_entry->list);
5733                 kfree(iocbq_entry);
5734                 phba->total_iocbq_bufs--;
5735         }
5736         spin_unlock_irq(&phba->hbalock);
5737 
5738         return;
5739 }
5740 
5741 /**
5742  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5743  * @phba: pointer to lpfc hba data structure.
5744  *
5745  * This routine is invoked to allocate and initizlize the driver's IOCB
5746  * list and set up the IOCB tag array accordingly.
5747  *
5748  * Return codes
5749  *      0 - successful
5750  *      other values - error
5751  **/
5752 static int
5753 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5754 {
5755         struct lpfc_iocbq *iocbq_entry = NULL;
5756         uint16_t iotag;
5757         int i;
5758 
5759         /* Initialize and populate the iocb list per host.  */
5760         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5761         for (i = 0; i < iocb_count; i++) {
5762                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5763                 if (iocbq_entry == NULL) {
5764                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5765                                 "expected %d count. Unloading driver.\n",
5766                                 __func__, i, LPFC_IOCB_LIST_CNT);
5767                         goto out_free_iocbq;
5768                 }
5769 
5770                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5771                 if (iotag == 0) {
5772                         kfree(iocbq_entry);
5773                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5774                                 "Unloading driver.\n", __func__);
5775                         goto out_free_iocbq;
5776                 }
5777                 iocbq_entry->sli4_lxritag = NO_XRI;
5778                 iocbq_entry->sli4_xritag = NO_XRI;
5779 
5780                 spin_lock_irq(&phba->hbalock);
5781                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5782                 phba->total_iocbq_bufs++;
5783                 spin_unlock_irq(&phba->hbalock);
5784         }
5785 
5786         return 0;
5787 
5788 out_free_iocbq:
5789         lpfc_free_iocb_list(phba);
5790 
5791         return -ENOMEM;
5792 }
5793 
5794 /**
5795  * lpfc_free_sgl_list - Free a given sgl list.
5796  * @phba: pointer to lpfc hba data structure.
5797  * @sglq_list: pointer to the head of sgl list.
5798  *
5799  * This routine is invoked to free a give sgl list and memory.
5800  **/
5801 void
5802 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5803 {
5804         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5805 
5806         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5807                 list_del(&sglq_entry->list);
5808                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5809                 kfree(sglq_entry);
5810         }
5811 }
5812 
5813 /**
5814  * lpfc_free_els_sgl_list - Free els sgl list.
5815  * @phba: pointer to lpfc hba data structure.
5816  *
5817  * This routine is invoked to free the driver's els sgl list and memory.
5818  **/
5819 static void
5820 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5821 {
5822         LIST_HEAD(sglq_list);
5823         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
5824 
5825         /* Retrieve all els sgls from driver list */
5826         spin_lock_irq(&phba->hbalock);
5827         spin_lock(&pring->ring_lock);
5828         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5829         spin_unlock(&pring->ring_lock);
5830         spin_unlock_irq(&phba->hbalock);
5831 
5832         /* Now free the sgl list */
5833         lpfc_free_sgl_list(phba, &sglq_list);
5834 }
5835 
5836 /**
5837  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5838  * @phba: pointer to lpfc hba data structure.
5839  *
5840  * This routine is invoked to allocate the driver's active sgl memory.
5841  * This array will hold the sglq_entry's for active IOs.
5842  **/
5843 static int
5844 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5845 {
5846         int size;
5847         size = sizeof(struct lpfc_sglq *);
5848         size *= phba->sli4_hba.max_cfg_param.max_xri;
5849 
5850         phba->sli4_hba.lpfc_sglq_active_list =
5851                 kzalloc(size, GFP_KERNEL);
5852         if (!phba->sli4_hba.lpfc_sglq_active_list)
5853                 return -ENOMEM;
5854         return 0;
5855 }
5856 
5857 /**
5858  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5859  * @phba: pointer to lpfc hba data structure.
5860  *
5861  * This routine is invoked to walk through the array of active sglq entries
5862  * and free all of the resources.
5863  * This is just a place holder for now.
5864  **/
5865 static void
5866 lpfc_free_active_sgl(struct lpfc_hba *phba)
5867 {
5868         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5869 }
5870 
5871 /**
5872  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5873  * @phba: pointer to lpfc hba data structure.
5874  *
5875  * This routine is invoked to allocate and initizlize the driver's sgl
5876  * list and set up the sgl xritag tag array accordingly.
5877  *
5878  **/
5879 static void
5880 lpfc_init_sgl_list(struct lpfc_hba *phba)
5881 {
5882         /* Initialize and populate the sglq list per host/VF. */
5883         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5884         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5885 
5886         /* els xri-sgl book keeping */
5887         phba->sli4_hba.els_xri_cnt = 0;
5888 
5889         /* scsi xri-buffer book keeping */
5890         phba->sli4_hba.scsi_xri_cnt = 0;
5891 }
5892 
5893 /**
5894  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5895  * @phba: pointer to lpfc hba data structure.
5896  *
5897  * This routine is invoked to post rpi header templates to the
5898  * port for those SLI4 ports that do not support extents.  This routine
5899  * posts a PAGE_SIZE memory region to the port to hold up to
5900  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5901  * and should be called only when interrupts are disabled.
5902  *
5903  * Return codes
5904  *      0 - successful
5905  *      -ERROR - otherwise.
5906  **/
5907 int
5908 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5909 {
5910         int rc = 0;
5911         struct lpfc_rpi_hdr *rpi_hdr;
5912 
5913         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5914         if (!phba->sli4_hba.rpi_hdrs_in_use)
5915                 return rc;
5916         if (phba->sli4_hba.extents_in_use)
5917                 return -EIO;
5918 
5919         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5920         if (!rpi_hdr) {
5921                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5922                                 "0391 Error during rpi post operation\n");
5923                 lpfc_sli4_remove_rpis(phba);
5924                 rc = -ENODEV;
5925         }
5926 
5927         return rc;
5928 }
5929 
5930 /**
5931  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5932  * @phba: pointer to lpfc hba data structure.
5933  *
5934  * This routine is invoked to allocate a single 4KB memory region to
5935  * support rpis and stores them in the phba.  This single region
5936  * provides support for up to 64 rpis.  The region is used globally
5937  * by the device.
5938  *
5939  * Returns:
5940  *   A valid rpi hdr on success.
5941  *   A NULL pointer on any failure.
5942  **/
5943 struct lpfc_rpi_hdr *
5944 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5945 {
5946         uint16_t rpi_limit, curr_rpi_range;
5947         struct lpfc_dmabuf *dmabuf;
5948         struct lpfc_rpi_hdr *rpi_hdr;
5949         uint32_t rpi_count;
5950 
5951         /*
5952          * If the SLI4 port supports extents, posting the rpi header isn't
5953          * required.  Set the expected maximum count and let the actual value
5954          * get set when extents are fully allocated.
5955          */
5956         if (!phba->sli4_hba.rpi_hdrs_in_use)
5957                 return NULL;
5958         if (phba->sli4_hba.extents_in_use)
5959                 return NULL;
5960 
5961         /* The limit on the logical index is just the max_rpi count. */
5962         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5963         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5964 
5965         spin_lock_irq(&phba->hbalock);
5966         /*
5967          * Establish the starting RPI in this header block.  The starting
5968          * rpi is normalized to a zero base because the physical rpi is
5969          * port based.
5970          */
5971         curr_rpi_range = phba->sli4_hba.next_rpi;
5972         spin_unlock_irq(&phba->hbalock);
5973 
5974         /*
5975          * The port has a limited number of rpis. The increment here
5976          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5977          * and to allow the full max_rpi range per port.
5978          */
5979         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5980                 rpi_count = rpi_limit - curr_rpi_range;
5981         else
5982                 rpi_count = LPFC_RPI_HDR_COUNT;
5983 
5984         if (!rpi_count)
5985                 return NULL;
5986         /*
5987          * First allocate the protocol header region for the port.  The
5988          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5989          */
5990         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5991         if (!dmabuf)
5992                 return NULL;
5993 
5994         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
5995                                            LPFC_HDR_TEMPLATE_SIZE,
5996                                            &dmabuf->phys, GFP_KERNEL);
5997         if (!dmabuf->virt) {
5998                 rpi_hdr = NULL;
5999                 goto err_free_dmabuf;
6000         }
6001 
6002         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6003                 rpi_hdr = NULL;
6004                 goto err_free_coherent;
6005         }
6006 
6007         /* Save the rpi header data for cleanup later. */
6008         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6009         if (!rpi_hdr)
6010                 goto err_free_coherent;
6011 
6012         rpi_hdr->dmabuf = dmabuf;
6013         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6014         rpi_hdr->page_count = 1;
6015         spin_lock_irq(&phba->hbalock);
6016 
6017         /* The rpi_hdr stores the logical index only. */
6018         rpi_hdr->start_rpi = curr_rpi_range;
6019         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6020 
6021         /*
6022          * The next_rpi stores the next logical module-64 rpi value used
6023          * to post physical rpis in subsequent rpi postings.
6024          */
6025         phba->sli4_hba.next_rpi += rpi_count;
6026         spin_unlock_irq(&phba->hbalock);
6027         return rpi_hdr;
6028 
6029  err_free_coherent:
6030         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6031                           dmabuf->virt, dmabuf->phys);
6032  err_free_dmabuf:
6033         kfree(dmabuf);
6034         return NULL;
6035 }
6036 
6037 /**
6038  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6039  * @phba: pointer to lpfc hba data structure.
6040  *
6041  * This routine is invoked to remove all memory resources allocated
6042  * to support rpis for SLI4 ports not supporting extents. This routine
6043  * presumes the caller has released all rpis consumed by fabric or port
6044  * logins and is prepared to have the header pages removed.
6045  **/
6046 void
6047 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6048 {
6049         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6050 
6051         if (!phba->sli4_hba.rpi_hdrs_in_use)
6052                 goto exit;
6053 
6054         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6055                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6056                 list_del(&rpi_hdr->list);
6057                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6058                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6059                 kfree(rpi_hdr->dmabuf);
6060                 kfree(rpi_hdr);
6061         }
6062  exit:
6063         /* There are no rpis available to the port now. */
6064         phba->sli4_hba.next_rpi = 0;
6065 }
6066 
6067 /**
6068  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6069  * @pdev: pointer to pci device data structure.
6070  *
6071  * This routine is invoked to allocate the driver hba data structure for an
6072  * HBA device. If the allocation is successful, the phba reference to the
6073  * PCI device data structure is set.
6074  *
6075  * Return codes
6076  *      pointer to @phba - successful
6077  *      NULL - error
6078  **/
6079 static struct lpfc_hba *
6080 lpfc_hba_alloc(struct pci_dev *pdev)
6081 {
6082         struct lpfc_hba *phba;
6083 
6084         /* Allocate memory for HBA structure */
6085         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6086         if (!phba) {
6087                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6088                 return NULL;
6089         }
6090 
6091         /* Set reference to PCI device in HBA structure */
6092         phba->pcidev = pdev;
6093 
6094         /* Assign an unused board number */
6095         phba->brd_no = lpfc_get_instance();
6096         if (phba->brd_no < 0) {
6097                 kfree(phba);
6098                 return NULL;
6099         }
6100 
6101         spin_lock_init(&phba->ct_ev_lock);
6102         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6103 
6104         return phba;
6105 }
6106 
6107 /**
6108  * lpfc_hba_free - Free driver hba data structure with a device.
6109  * @phba: pointer to lpfc hba data structure.
6110  *
6111  * This routine is invoked to free the driver hba data structure with an
6112  * HBA device.
6113  **/
6114 static void
6115 lpfc_hba_free(struct lpfc_hba *phba)
6116 {
6117         /* Release the driver assigned board number */
6118         idr_remove(&lpfc_hba_index, phba->brd_no);
6119 
6120         /* Free memory allocated with sli rings */
6121         kfree(phba->sli.ring);
6122         phba->sli.ring = NULL;
6123 
6124         kfree(phba);
6125         return;
6126 }
6127 
6128 /**
6129  * lpfc_create_shost - Create hba physical port with associated scsi host.
6130  * @phba: pointer to lpfc hba data structure.
6131  *
6132  * This routine is invoked to create HBA physical port and associate a SCSI
6133  * host with it.
6134  *
6135  * Return codes
6136  *      0 - successful
6137  *      other values - error
6138  **/
6139 static int
6140 lpfc_create_shost(struct lpfc_hba *phba)
6141 {
6142         struct lpfc_vport *vport;
6143         struct Scsi_Host  *shost;
6144 
6145         /* Initialize HBA FC structure */
6146         phba->fc_edtov = FF_DEF_EDTOV;
6147         phba->fc_ratov = FF_DEF_RATOV;
6148         phba->fc_altov = FF_DEF_ALTOV;
6149         phba->fc_arbtov = FF_DEF_ARBTOV;
6150 
6151         atomic_set(&phba->sdev_cnt, 0);
6152         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6153         if (!vport)
6154                 return -ENODEV;
6155 
6156         shost = lpfc_shost_from_vport(vport);
6157         phba->pport = vport;
6158         lpfc_debugfs_initialize(vport);
6159         /* Put reference to SCSI host to driver's device private data */
6160         pci_set_drvdata(phba->pcidev, shost);
6161 
6162         return 0;
6163 }
6164 
6165 /**
6166  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6167  * @phba: pointer to lpfc hba data structure.
6168  *
6169  * This routine is invoked to destroy HBA physical port and the associated
6170  * SCSI host.
6171  **/
6172 static void
6173 lpfc_destroy_shost(struct lpfc_hba *phba)
6174 {
6175         struct lpfc_vport *vport = phba->pport;
6176 
6177         /* Destroy physical port that associated with the SCSI host */
6178         destroy_port(vport);
6179 
6180         return;
6181 }
6182 
6183 /**
6184  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6185  * @phba: pointer to lpfc hba data structure.
6186  * @shost: the shost to be used to detect Block guard settings.
6187  *
6188  * This routine sets up the local Block guard protocol settings for @shost.
6189  * This routine also allocates memory for debugging bg buffers.
6190  **/
6191 static void
6192 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6193 {
6194         uint32_t old_mask;
6195         uint32_t old_guard;
6196 
6197         int pagecnt = 10;
6198         if (lpfc_prot_mask && lpfc_prot_guard) {
6199                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6200                                 "1478 Registering BlockGuard with the "
6201                                 "SCSI layer\n");
6202 
6203                 old_mask = lpfc_prot_mask;
6204                 old_guard = lpfc_prot_guard;
6205 
6206                 /* Only allow supported values */
6207                 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6208                         SHOST_DIX_TYPE0_PROTECTION |
6209                         SHOST_DIX_TYPE1_PROTECTION);
6210                 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
6211 
6212                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6213                 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6214                         lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6215 
6216                 if (lpfc_prot_mask && lpfc_prot_guard) {
6217                         if ((old_mask != lpfc_prot_mask) ||
6218                                 (old_guard != lpfc_prot_guard))
6219                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6220                                         "1475 Registering BlockGuard with the "
6221                                         "SCSI layer: mask %d  guard %d\n",
6222                                         lpfc_prot_mask, lpfc_prot_guard);
6223 
6224                         scsi_host_set_prot(shost, lpfc_prot_mask);
6225                         scsi_host_set_guard(shost, lpfc_prot_guard);
6226                 } else
6227                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6228                                 "1479 Not Registering BlockGuard with the SCSI "
6229                                 "layer, Bad protection parameters: %d %d\n",
6230                                 old_mask, old_guard);
6231         }
6232 
6233         if (!_dump_buf_data) {
6234                 while (pagecnt) {
6235                         spin_lock_init(&_dump_buf_lock);
6236                         _dump_buf_data =
6237                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6238                         if (_dump_buf_data) {
6239                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6240                                         "9043 BLKGRD: allocated %d pages for "
6241                                        "_dump_buf_data at 0x%p\n",
6242                                        (1 << pagecnt), _dump_buf_data);
6243                                 _dump_buf_data_order = pagecnt;
6244                                 memset(_dump_buf_data, 0,
6245                                        ((1 << PAGE_SHIFT) << pagecnt));
6246                                 break;
6247                         } else
6248                                 --pagecnt;
6249                 }
6250                 if (!_dump_buf_data_order)
6251                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6252                                 "9044 BLKGRD: ERROR unable to allocate "
6253                                "memory for hexdump\n");
6254         } else
6255                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6256                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6257                        "\n", _dump_buf_data);
6258         if (!_dump_buf_dif) {
6259                 while (pagecnt) {
6260                         _dump_buf_dif =
6261                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6262                         if (_dump_buf_dif) {
6263                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6264                                         "9046 BLKGRD: allocated %d pages for "
6265                                        "_dump_buf_dif at 0x%p\n",
6266                                        (1 << pagecnt), _dump_buf_dif);
6267                                 _dump_buf_dif_order = pagecnt;
6268                                 memset(_dump_buf_dif, 0,
6269                                        ((1 << PAGE_SHIFT) << pagecnt));
6270                                 break;
6271                         } else
6272                                 --pagecnt;
6273                 }
6274                 if (!_dump_buf_dif_order)
6275                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6276                         "9047 BLKGRD: ERROR unable to allocate "
6277                                "memory for hexdump\n");
6278         } else
6279                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6280                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6281                        _dump_buf_dif);
6282 }
6283 
6284 /**
6285  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6286  * @phba: pointer to lpfc hba data structure.
6287  *
6288  * This routine is invoked to perform all the necessary post initialization
6289  * setup for the device.
6290  **/
6291 static void
6292 lpfc_post_init_setup(struct lpfc_hba *phba)
6293 {
6294         struct Scsi_Host  *shost;
6295         struct lpfc_adapter_event_header adapter_event;
6296 
6297         /* Get the default values for Model Name and Description */
6298         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6299 
6300         /*
6301          * hba setup may have changed the hba_queue_depth so we need to
6302          * adjust the value of can_queue.
6303          */
6304         shost = pci_get_drvdata(phba->pcidev);
6305         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6306         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6307                 lpfc_setup_bg(phba, shost);
6308 
6309         lpfc_host_attrib_init(shost);
6310 
6311         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6312                 spin_lock_irq(shost->host_lock);
6313                 lpfc_poll_start_timer(phba);
6314                 spin_unlock_irq(shost->host_lock);
6315         }
6316 
6317         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6318                         "0428 Perform SCSI scan\n");
6319         /* Send board arrival event to upper layer */
6320         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6321         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6322         fc_host_post_vendor_event(shost, fc_get_event_number(),
6323                                   sizeof(adapter_event),
6324                                   (char *) &adapter_event,
6325                                   LPFC_NL_VENDOR_ID);
6326         return;
6327 }
6328 
6329 /**
6330  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6331  * @phba: pointer to lpfc hba data structure.
6332  *
6333  * This routine is invoked to set up the PCI device memory space for device
6334  * with SLI-3 interface spec.
6335  *
6336  * Return codes
6337  *      0 - successful
6338  *      other values - error
6339  **/
6340 static int
6341 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6342 {
6343         struct pci_dev *pdev;
6344         unsigned long bar0map_len, bar2map_len;
6345         int i, hbq_count;
6346         void *ptr;
6347         int error = -ENODEV;
6348 
6349         /* Obtain PCI device reference */
6350         if (!phba->pcidev)
6351                 return error;
6352         else
6353                 pdev = phba->pcidev;
6354 
6355         /* Set the device DMA mask size */
6356         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6357          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6358                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6359                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6360                         return error;
6361                 }
6362         }
6363 
6364         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6365          * required by each mapping.
6366          */
6367         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6368         bar0map_len = pci_resource_len(pdev, 0);
6369 
6370         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6371         bar2map_len = pci_resource_len(pdev, 2);
6372 
6373         /* Map HBA SLIM to a kernel virtual address. */
6374         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6375         if (!phba->slim_memmap_p) {
6376                 dev_printk(KERN_ERR, &pdev->dev,
6377                            "ioremap failed for SLIM memory.\n");
6378                 goto out;
6379         }
6380 
6381         /* Map HBA Control Registers to a kernel virtual address. */
6382         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6383         if (!phba->ctrl_regs_memmap_p) {
6384                 dev_printk(KERN_ERR, &pdev->dev,
6385                            "ioremap failed for HBA control registers.\n");
6386                 goto out_iounmap_slim;
6387         }
6388 
6389         /* Allocate memory for SLI-2 structures */
6390         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6391                                                 &phba->slim2p.phys, GFP_KERNEL);
6392         if (!phba->slim2p.virt)
6393                 goto out_iounmap;
6394 
6395         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6396         phba->mbox_ext = (phba->slim2p.virt +
6397                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6398         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6399         phba->IOCBs = (phba->slim2p.virt +
6400                        offsetof(struct lpfc_sli2_slim, IOCBs));
6401 
6402         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6403                                                  lpfc_sli_hbq_size(),
6404                                                  &phba->hbqslimp.phys,
6405                                                  GFP_KERNEL);
6406         if (!phba->hbqslimp.virt)
6407                 goto out_free_slim;
6408 
6409         hbq_count = lpfc_sli_hbq_count();
6410         ptr = phba->hbqslimp.virt;
6411         for (i = 0; i < hbq_count; ++i) {
6412                 phba->hbqs[i].hbq_virt = ptr;
6413                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6414                 ptr += (lpfc_hbq_defs[i]->entry_count *
6415                         sizeof(struct lpfc_hbq_entry));
6416         }
6417         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6418         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6419 
6420         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6421 
6422         INIT_LIST_HEAD(&phba->rb_pend_list);
6423 
6424         phba->MBslimaddr = phba->slim_memmap_p;
6425         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6426         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6427         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6428         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6429 
6430         return 0;
6431 
6432 out_free_slim:
6433         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6434                           phba->slim2p.virt, phba->slim2p.phys);
6435 out_iounmap:
6436         iounmap(phba->ctrl_regs_memmap_p);
6437 out_iounmap_slim:
6438         iounmap(phba->slim_memmap_p);
6439 out:
6440         return error;
6441 }
6442 
6443 /**
6444  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6445  * @phba: pointer to lpfc hba data structure.
6446  *
6447  * This routine is invoked to unset the PCI device memory space for device
6448  * with SLI-3 interface spec.
6449  **/
6450 static void
6451 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6452 {
6453         struct pci_dev *pdev;
6454 
6455         /* Obtain PCI device reference */
6456         if (!phba->pcidev)
6457                 return;
6458         else
6459                 pdev = phba->pcidev;
6460 
6461         /* Free coherent DMA memory allocated */
6462         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6463                           phba->hbqslimp.virt, phba->hbqslimp.phys);
6464         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6465                           phba->slim2p.virt, phba->slim2p.phys);
6466 
6467         /* I/O memory unmap */
6468         iounmap(phba->ctrl_regs_memmap_p);
6469         iounmap(phba->slim_memmap_p);
6470 
6471         return;
6472 }
6473 
6474 /**
6475  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6476  * @phba: pointer to lpfc hba data structure.
6477  *
6478  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6479  * done and check status.
6480  *
6481  * Return 0 if successful, otherwise -ENODEV.
6482  **/
6483 int
6484 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6485 {
6486         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6487         struct lpfc_register reg_data;
6488         int i, port_error = 0;
6489         uint32_t if_type;
6490 
6491         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6492         memset(&reg_data, 0, sizeof(reg_data));
6493         if (!phba->sli4_hba.PSMPHRregaddr)
6494                 return -ENODEV;
6495 
6496         /* Wait up to 30 seconds for the SLI Port POST done and ready */
6497         for (i = 0; i < 3000; i++) {
6498                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6499                         &portsmphr_reg.word0) ||
6500                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6501                         /* Port has a fatal POST error, break out */
6502                         port_error = -ENODEV;
6503                         break;
6504                 }
6505                 if (LPFC_POST_STAGE_PORT_READY ==
6506                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6507                         break;
6508                 msleep(10);
6509         }
6510 
6511         /*
6512          * If there was a port error during POST, then don't proceed with
6513          * other register reads as the data may not be valid.  Just exit.
6514          */
6515         if (port_error) {
6516                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6517                         "1408 Port Failed POST - portsmphr=0x%x, "
6518                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6519                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6520                         portsmphr_reg.word0,
6521                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6522                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6523                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6524                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6525                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6526                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6527                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6528                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6529         } else {
6530                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6531                                 "2534 Device Info: SLIFamily=0x%x, "
6532                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6533                                 "SLIHint_2=0x%x, FT=0x%x\n",
6534                                 bf_get(lpfc_sli_intf_sli_family,
6535                                        &phba->sli4_hba.sli_intf),
6536                                 bf_get(lpfc_sli_intf_slirev,
6537                                        &phba->sli4_hba.sli_intf),
6538                                 bf_get(lpfc_sli_intf_if_type,
6539                                        &phba->sli4_hba.sli_intf),
6540                                 bf_get(lpfc_sli_intf_sli_hint1,
6541                                        &phba->sli4_hba.sli_intf),
6542                                 bf_get(lpfc_sli_intf_sli_hint2,
6543                                        &phba->sli4_hba.sli_intf),
6544                                 bf_get(lpfc_sli_intf_func_type,
6545                                        &phba->sli4_hba.sli_intf));
6546                 /*
6547                  * Check for other Port errors during the initialization
6548                  * process.  Fail the load if the port did not come up
6549                  * correctly.
6550                  */
6551                 if_type = bf_get(lpfc_sli_intf_if_type,
6552                                  &phba->sli4_hba.sli_intf);
6553                 switch (if_type) {
6554                 case LPFC_SLI_INTF_IF_TYPE_0:
6555                         phba->sli4_hba.ue_mask_lo =
6556                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6557                         phba->sli4_hba.ue_mask_hi =
6558                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6559                         uerrlo_reg.word0 =
6560                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6561                         uerrhi_reg.word0 =
6562                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6563                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6564                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6565                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6566                                                 "1422 Unrecoverable Error "
6567                                                 "Detected during POST "
6568                                                 "uerr_lo_reg=0x%x, "
6569                                                 "uerr_hi_reg=0x%x, "
6570                                                 "ue_mask_lo_reg=0x%x, "
6571                                                 "ue_mask_hi_reg=0x%x\n",
6572                                                 uerrlo_reg.word0,
6573                                                 uerrhi_reg.word0,
6574                                                 phba->sli4_hba.ue_mask_lo,
6575                                                 phba->sli4_hba.ue_mask_hi);
6576                                 port_error = -ENODEV;
6577                         }
6578                         break;
6579                 case LPFC_SLI_INTF_IF_TYPE_2:
6580                         /* Final checks.  The port status should be clean. */
6581                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6582                                 &reg_data.word0) ||
6583                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6584                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6585                                 phba->work_status[0] =
6586                                         readl(phba->sli4_hba.u.if_type2.
6587                                               ERR1regaddr);
6588                                 phba->work_status[1] =
6589                                         readl(phba->sli4_hba.u.if_type2.
6590                                               ERR2regaddr);
6591                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6592                                         "2888 Unrecoverable port error "
6593                                         "following POST: port status reg "
6594                                         "0x%x, port_smphr reg 0x%x, "
6595                                         "error 1=0x%x, error 2=0x%x\n",
6596                                         reg_data.word0,
6597                                         portsmphr_reg.word0,
6598                                         phba->work_status[0],
6599                                         phba->work_status[1]);
6600                                 port_error = -ENODEV;
6601                         }
6602                         break;
6603                 case LPFC_SLI_INTF_IF_TYPE_1:
6604                 default:
6605                         break;
6606                 }
6607         }
6608         return port_error;
6609 }
6610 
6611 /**
6612  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6613  * @phba: pointer to lpfc hba data structure.
6614  * @if_type:  The SLI4 interface type getting configured.
6615  *
6616  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6617  * memory map.
6618  **/
6619 static void
6620 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6621 {
6622         switch (if_type) {
6623         case LPFC_SLI_INTF_IF_TYPE_0:
6624                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6625                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6626                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6627                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6628                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6629                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6630                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6631                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6632                 phba->sli4_hba.SLIINTFregaddr =
6633                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6634                 break;
6635         case LPFC_SLI_INTF_IF_TYPE_2:
6636                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6637                         phba->sli4_hba.conf_regs_memmap_p +
6638                                                 LPFC_CTL_PORT_ER1_OFFSET;
6639                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6640                         phba->sli4_hba.conf_regs_memmap_p +
6641                                                 LPFC_CTL_PORT_ER2_OFFSET;
6642                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6643                         phba->sli4_hba.conf_regs_memmap_p +
6644                                                 LPFC_CTL_PORT_CTL_OFFSET;
6645                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6646                         phba->sli4_hba.conf_regs_memmap_p +
6647                                                 LPFC_CTL_PORT_STA_OFFSET;
6648                 phba->sli4_hba.SLIINTFregaddr =
6649                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6650                 phba->sli4_hba.PSMPHRregaddr =
6651                         phba->sli4_hba.conf_regs_memmap_p +
6652                                                 LPFC_CTL_PORT_SEM_OFFSET;
6653                 phba->sli4_hba.RQDBregaddr =
6654                         phba->sli4_hba.conf_regs_memmap_p +
6655                                                 LPFC_ULP0_RQ_DOORBELL;
6656                 phba->sli4_hba.WQDBregaddr =
6657                         phba->sli4_hba.conf_regs_memmap_p +
6658                                                 LPFC_ULP0_WQ_DOORBELL;
6659                 phba->sli4_hba.EQCQDBregaddr =
6660                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6661                 phba->sli4_hba.MQDBregaddr =
6662                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6663                 phba->sli4_hba.BMBXregaddr =
6664                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6665                 break;
6666         case LPFC_SLI_INTF_IF_TYPE_1:
6667         default:
6668                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6669                            "FATAL - unsupported SLI4 interface type - %d\n",
6670                            if_type);
6671                 break;
6672         }
6673 }
6674 
6675 /**
6676  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6677  * @phba: pointer to lpfc hba data structure.
6678  *
6679  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6680  * memory map.
6681  **/
6682 static void
6683 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6684 {
6685         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6686                 LPFC_SLIPORT_IF0_SMPHR;
6687         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6688                 LPFC_HST_ISR0;
6689         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6690                 LPFC_HST_IMR0;
6691         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6692                 LPFC_HST_ISCR0;
6693 }
6694 
6695 /**
6696  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6697  * @phba: pointer to lpfc hba data structure.
6698  * @vf: virtual function number
6699  *
6700  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6701  * based on the given viftual function number, @vf.
6702  *
6703  * Return 0 if successful, otherwise -ENODEV.
6704  **/
6705 static int
6706 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6707 {
6708         if (vf > LPFC_VIR_FUNC_MAX)
6709                 return -ENODEV;
6710 
6711         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6712                                 vf * LPFC_VFR_PAGE_SIZE +
6713                                         LPFC_ULP0_RQ_DOORBELL);
6714         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6715                                 vf * LPFC_VFR_PAGE_SIZE +
6716                                         LPFC_ULP0_WQ_DOORBELL);
6717         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6718                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6719         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6720                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6721         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6722                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6723         return 0;
6724 }
6725 
6726 /**
6727  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6728  * @phba: pointer to lpfc hba data structure.
6729  *
6730  * This routine is invoked to create the bootstrap mailbox
6731  * region consistent with the SLI-4 interface spec.  This
6732  * routine allocates all memory necessary to communicate
6733  * mailbox commands to the port and sets up all alignment
6734  * needs.  No locks are expected to be held when calling
6735  * this routine.
6736  *
6737  * Return codes
6738  *      0 - successful
6739  *      -ENOMEM - could not allocated memory.
6740  **/
6741 static int
6742 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6743 {
6744         uint32_t bmbx_size;
6745         struct lpfc_dmabuf *dmabuf;
6746         struct dma_address *dma_address;
6747         uint32_t pa_addr;
6748         uint64_t phys_addr;
6749 
6750         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6751         if (!dmabuf)
6752                 return -ENOMEM;
6753 
6754         /*
6755          * The bootstrap mailbox region is comprised of 2 parts
6756          * plus an alignment restriction of 16 bytes.
6757          */
6758         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6759         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
6760                                            &dmabuf->phys, GFP_KERNEL);
6761         if (!dmabuf->virt) {
6762                 kfree(dmabuf);
6763                 return -ENOMEM;
6764         }
6765 
6766         /*
6767          * Initialize the bootstrap mailbox pointers now so that the register
6768          * operations are simple later.  The mailbox dma address is required
6769          * to be 16-byte aligned.  Also align the virtual memory as each
6770          * maibox is copied into the bmbx mailbox region before issuing the
6771          * command to the port.
6772          */
6773         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6774         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6775 
6776         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6777                                               LPFC_ALIGN_16_BYTE);
6778         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6779                                               LPFC_ALIGN_16_BYTE);
6780 
6781         /*
6782          * Set the high and low physical addresses now.  The SLI4 alignment
6783          * requirement is 16 bytes and the mailbox is posted to the port
6784          * as two 30-bit addresses.  The other data is a bit marking whether
6785          * the 30-bit address is the high or low address.
6786          * Upcast bmbx aphys to 64bits so shift instruction compiles
6787          * clean on 32 bit machines.
6788          */
6789         dma_address = &phba->sli4_hba.bmbx.dma_address;
6790         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6791         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6792         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6793                                            LPFC_BMBX_BIT1_ADDR_HI);
6794 
6795         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6796         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6797                                            LPFC_BMBX_BIT1_ADDR_LO);
6798         return 0;
6799 }
6800 
6801 /**
6802  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6803  * @phba: pointer to lpfc hba data structure.
6804  *
6805  * This routine is invoked to teardown the bootstrap mailbox
6806  * region and release all host resources. This routine requires
6807  * the caller to ensure all mailbox commands recovered, no
6808  * additional mailbox comands are sent, and interrupts are disabled
6809  * before calling this routine.
6810  *
6811  **/
6812 static void
6813 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6814 {
6815         dma_free_coherent(&phba->pcidev->dev,
6816                           phba->sli4_hba.bmbx.bmbx_size,
6817                           phba->sli4_hba.bmbx.dmabuf->virt,
6818                           phba->sli4_hba.bmbx.dmabuf->phys);
6819 
6820         kfree(phba->sli4_hba.bmbx.dmabuf);
6821         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6822 }
6823 
6824 /**
6825  * lpfc_sli4_read_config - Get the config parameters.
6826  * @phba: pointer to lpfc hba data structure.
6827  *
6828  * This routine is invoked to read the configuration parameters from the HBA.
6829  * The configuration parameters are used to set the base and maximum values
6830  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6831  * allocation for the port.
6832  *
6833  * Return codes
6834  *      0 - successful
6835  *      -ENOMEM - No available memory
6836  *      -EIO - The mailbox failed to complete successfully.
6837  **/
6838 int
6839 lpfc_sli4_read_config(struct lpfc_hba *phba)
6840 {
6841         LPFC_MBOXQ_t *pmb;
6842         struct lpfc_mbx_read_config *rd_config;
6843         union  lpfc_sli4_cfg_shdr *shdr;
6844         uint32_t shdr_status, shdr_add_status;
6845         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6846         struct lpfc_rsrc_desc_fcfcoe *desc;
6847         char *pdesc_0;
6848         int length, i, rc = 0, rc2;
6849 
6850         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6851         if (!pmb) {
6852                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6853                                 "2011 Unable to allocate memory for issuing "
6854                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6855                 return -ENOMEM;
6856         }
6857 
6858         lpfc_read_config(phba, pmb);
6859 
6860         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6861         if (rc != MBX_SUCCESS) {
6862                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6863                         "2012 Mailbox failed , mbxCmd x%x "
6864                         "READ_CONFIG, mbxStatus x%x\n",
6865                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6866                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6867                 rc = -EIO;
6868         } else {
6869                 rd_config = &pmb->u.mqe.un.rd_config;
6870                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6871                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6872                         phba->sli4_hba.lnk_info.lnk_tp =
6873                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6874                         phba->sli4_hba.lnk_info.lnk_no =
6875                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6876                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6877                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6878                                         phba->sli4_hba.lnk_info.lnk_tp,
6879                                         phba->sli4_hba.lnk_info.lnk_no);
6880                 } else
6881                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6882                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6883                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6884                 phba->sli4_hba.extents_in_use =
6885                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6886                 phba->sli4_hba.max_cfg_param.max_xri =
6887                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6888                 phba->sli4_hba.max_cfg_param.xri_base =
6889                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6890                 phba->sli4_hba.max_cfg_param.max_vpi =
6891                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6892                 phba->sli4_hba.max_cfg_param.vpi_base =
6893                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6894                 phba->sli4_hba.max_cfg_param.max_rpi =
6895                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6896                 phba->sli4_hba.max_cfg_param.rpi_base =
6897                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6898                 phba->sli4_hba.max_cfg_param.max_vfi =
6899                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6900                 phba->sli4_hba.max_cfg_param.vfi_base =
6901                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6902                 phba->sli4_hba.max_cfg_param.max_fcfi =
6903                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6904                 phba->sli4_hba.max_cfg_param.max_eq =
6905                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6906                 phba->sli4_hba.max_cfg_param.max_rq =
6907                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6908                 phba->sli4_hba.max_cfg_param.max_wq =
6909                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6910                 phba->sli4_hba.max_cfg_param.max_cq =
6911                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6912                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6913                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6914                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6915                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6916                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6917                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6918                 phba->max_vports = phba->max_vpi;
6919                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6920                                 "2003 cfg params Extents? %d "
6921                                 "XRI(B:%d M:%d), "
6922                                 "VPI(B:%d M:%d) "
6923                                 "VFI(B:%d M:%d) "
6924                                 "RPI(B:%d M:%d) "
6925                                 "FCFI(Count:%d)\n",
6926                                 phba->sli4_hba.extents_in_use,
6927                                 phba->sli4_hba.max_cfg_param.xri_base,
6928                                 phba->sli4_hba.max_cfg_param.max_xri,
6929                                 phba->sli4_hba.max_cfg_param.vpi_base,
6930                                 phba->sli4_hba.max_cfg_param.max_vpi,
6931                                 phba->sli4_hba.max_cfg_param.vfi_base,
6932                                 phba->sli4_hba.max_cfg_param.max_vfi,
6933                                 phba->sli4_hba.max_cfg_param.rpi_base,
6934                                 phba->sli4_hba.max_cfg_param.max_rpi,
6935                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6936         }
6937 
6938         if (rc)
6939                 goto read_cfg_out;
6940 
6941         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6942         length = phba->sli4_hba.max_cfg_param.max_xri -
6943                         lpfc_sli4_get_els_iocb_cnt(phba);
6944         if (phba->cfg_hba_queue_depth > length) {
6945                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6946                                 "3361 HBA queue depth changed from %d to %d\n",
6947                                 phba->cfg_hba_queue_depth, length);
6948                 phba->cfg_hba_queue_depth = length;
6949         }
6950 
6951         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6952             LPFC_SLI_INTF_IF_TYPE_2)
6953                 goto read_cfg_out;
6954 
6955         /* get the pf# and vf# for SLI4 if_type 2 port */
6956         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6957                   sizeof(struct lpfc_sli4_cfg_mhdr));
6958         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6959                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6960                          length, LPFC_SLI4_MBX_EMBED);
6961 
6962         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6963         shdr = (union lpfc_sli4_cfg_shdr *)
6964                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6965         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6966         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6967         if (rc2 || shdr_status || shdr_add_status) {
6968                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6969                                 "3026 Mailbox failed , mbxCmd x%x "
6970                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6971                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6972                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6973                 goto read_cfg_out;
6974         }
6975 
6976         /* search for fc_fcoe resrouce descriptor */
6977         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6978 
6979         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6980         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6981         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6982         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6983                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6984         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6985                 goto read_cfg_out;
6986 
6987         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6988                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6989                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6990                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6991                         phba->sli4_hba.iov.pf_number =
6992                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6993                         phba->sli4_hba.iov.vf_number =
6994                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6995                         break;
6996                 }
6997         }
6998 
6999         if (i < LPFC_RSRC_DESC_MAX_NUM)
7000                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7001                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7002                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7003                                 phba->sli4_hba.iov.vf_number);
7004         else
7005                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7006                                 "3028 GET_FUNCTION_CONFIG: failed to find "
7007                                 "Resrouce Descriptor:x%x\n",
7008                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
7009 
7010 read_cfg_out:
7011         mempool_free(pmb, phba->mbox_mem_pool);
7012         return rc;
7013 }
7014 
7015 /**
7016  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7017  * @phba: pointer to lpfc hba data structure.
7018  *
7019  * This routine is invoked to setup the port-side endian order when
7020  * the port if_type is 0.  This routine has no function for other
7021  * if_types.
7022  *
7023  * Return codes
7024  *      0 - successful
7025  *      -ENOMEM - No available memory
7026  *      -EIO - The mailbox failed to complete successfully.
7027  **/
7028 static int
7029 lpfc_setup_endian_order(struct lpfc_hba *phba)
7030 {
7031         LPFC_MBOXQ_t *mboxq;
7032         uint32_t if_type, rc = 0;
7033         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7034                                       HOST_ENDIAN_HIGH_WORD1};
7035 
7036         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7037         switch (if_type) {
7038         case LPFC_SLI_INTF_IF_TYPE_0:
7039                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7040                                                        GFP_KERNEL);
7041                 if (!mboxq) {
7042                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7043                                         "0492 Unable to allocate memory for "
7044                                         "issuing SLI_CONFIG_SPECIAL mailbox "
7045                                         "command\n");
7046                         return -ENOMEM;
7047                 }
7048 
7049                 /*
7050                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7051                  * two words to contain special data values and no other data.
7052                  */
7053                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7054                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7055                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7056                 if (rc != MBX_SUCCESS) {
7057                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7058                                         "0493 SLI_CONFIG_SPECIAL mailbox "
7059                                         "failed with status x%x\n",
7060                                         rc);
7061                         rc = -EIO;
7062                 }
7063                 mempool_free(mboxq, phba->mbox_mem_pool);
7064                 break;
7065         case LPFC_SLI_INTF_IF_TYPE_2:
7066         case LPFC_SLI_INTF_IF_TYPE_1:
7067         default:
7068                 break;
7069         }
7070         return rc;
7071 }
7072 
7073 /**
7074  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
7075  * @phba: pointer to lpfc hba data structure.
7076  *
7077  * This routine is invoked to check the user settable queue counts for EQs and
7078  * CQs. after this routine is called the counts will be set to valid values that
7079  * adhere to the constraints of the system's interrupt vectors and the port's
7080  * queue resources.
7081  *
7082  * Return codes
7083  *      0 - successful
7084  *      -ENOMEM - No available memory
7085  **/
7086 static int
7087 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7088 {
7089         int cfg_fcp_io_channel;
7090         uint32_t cpu;
7091         uint32_t i = 0;
7092         int fof_vectors = phba->cfg_fof ? 1 : 0;
7093 
7094         /*
7095          * Sanity check for configured queue parameters against the run-time
7096          * device parameters
7097          */
7098 
7099         /* Sanity check on HBA EQ parameters */
7100         cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
7101 
7102         /* It doesn't make sense to have more io channels then online CPUs */
7103         for_each_present_cpu(cpu) {
7104                 if (cpu_online(cpu))
7105                         i++;
7106         }
7107         phba->sli4_hba.num_online_cpu = i;
7108         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7109         phba->sli4_hba.curr_disp_cpu = 0;
7110 
7111         if (i < cfg_fcp_io_channel) {
7112                 lpfc_printf_log(phba,
7113                                 KERN_ERR, LOG_INIT,
7114                                 "3188 Reducing IO channels to match number of "
7115                                 "online CPUs: from %d to %d\n",
7116                                 cfg_fcp_io_channel, i);
7117                 cfg_fcp_io_channel = i;
7118         }
7119 
7120         if (cfg_fcp_io_channel + fof_vectors >
7121             phba->sli4_hba.max_cfg_param.max_eq) {
7122                 if (phba->sli4_hba.max_cfg_param.max_eq <
7123                     LPFC_FCP_IO_CHAN_MIN) {
7124                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7125                                         "2574 Not enough EQs (%d) from the "
7126                                         "pci function for supporting FCP "
7127                                         "EQs (%d)\n",
7128                                         phba->sli4_hba.max_cfg_param.max_eq,
7129                                         phba->cfg_fcp_io_channel);
7130                         goto out_error;
7131                 }
7132                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7133                                 "2575 Reducing IO channels to match number of "
7134                                 "available EQs: from %d to %d\n",
7135                                 cfg_fcp_io_channel,
7136                                 phba->sli4_hba.max_cfg_param.max_eq);
7137                 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7138                         fof_vectors;
7139         }
7140 
7141         /* The actual number of FCP event queues adopted */
7142         phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7143 
7144         /* Get EQ depth from module parameter, fake the default for now */
7145         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7146         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7147 
7148         /* Get CQ depth from module parameter, fake the default for now */
7149         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7150         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7151 
7152         return 0;
7153 out_error:
7154         return -ENOMEM;
7155 }
7156 
7157 /**
7158  * lpfc_sli4_queue_create - Create all the SLI4 queues
7159  * @phba: pointer to lpfc hba data structure.
7160  *
7161  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7162  * operation. For each SLI4 queue type, the parameters such as queue entry
7163  * count (queue depth) shall be taken from the module parameter. For now,
7164  * we just use some constant number as place holder.
7165  *
7166  * Return codes
7167  *      0 - successful
7168  *      -ENOMEM - No availble memory
7169  *      -EIO - The mailbox failed to complete successfully.
7170  **/
7171 int
7172 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7173 {
7174         struct lpfc_queue *qdesc;
7175         int idx;
7176 
7177         /*
7178          * Create HBA Record arrays.
7179          */
7180         if (!phba->cfg_fcp_io_channel)
7181                 return -ERANGE;
7182 
7183         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7184         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7185         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7186         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7187         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7188         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7189 
7190         phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
7191                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7192         if (!phba->sli4_hba.hba_eq) {
7193                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7194                         "2576 Failed allocate memory for "
7195                         "fast-path EQ record array\n");
7196                 goto out_error;
7197         }
7198 
7199         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7200                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7201         if (!phba->sli4_hba.fcp_cq) {
7202                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7203                                 "2577 Failed allocate memory for fast-path "
7204                                 "CQ record array\n");
7205                 goto out_error;
7206         }
7207 
7208         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7209                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7210         if (!phba->sli4_hba.fcp_wq) {
7211                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7212                                 "2578 Failed allocate memory for fast-path "
7213                                 "WQ record array\n");
7214                 goto out_error;
7215         }
7216 
7217         /*
7218          * Since the first EQ can have multiple CQs associated with it,
7219          * this array is used to quickly see if we have a FCP fast-path
7220          * CQ match.
7221          */
7222         phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7223                                          phba->cfg_fcp_io_channel), GFP_KERNEL);
7224         if (!phba->sli4_hba.fcp_cq_map) {
7225                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7226                                 "2545 Failed allocate memory for fast-path "
7227                                 "CQ map\n");
7228                 goto out_error;
7229         }
7230 
7231         /*
7232          * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
7233          * how many EQs to create.
7234          */
7235         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7236 
7237                 /* Create EQs */
7238                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7239                                               phba->sli4_hba.eq_ecount);
7240                 if (!qdesc) {
7241                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7242                                         "0497 Failed allocate EQ (%d)\n", idx);
7243                         goto out_error;
7244                 }
7245                 phba->sli4_hba.hba_eq[idx] = qdesc;
7246 
7247                 /* Create Fast Path FCP CQs */
7248                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7249                                               phba->sli4_hba.cq_ecount);
7250                 if (!qdesc) {
7251                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7252                                         "0499 Failed allocate fast-path FCP "
7253                                         "CQ (%d)\n", idx);
7254                         goto out_error;
7255                 }
7256                 phba->sli4_hba.fcp_cq[idx] = qdesc;
7257 
7258                 /* Create Fast Path FCP WQs */
7259                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7260                                               phba->sli4_hba.wq_ecount);
7261                 if (!qdesc) {
7262                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7263                                         "0503 Failed allocate fast-path FCP "
7264                                         "WQ (%d)\n", idx);
7265                         goto out_error;
7266                 }
7267                 phba->sli4_hba.fcp_wq[idx] = qdesc;
7268         }
7269 
7270 
7271         /*
7272          * Create Slow Path Completion Queues (CQs)
7273          */
7274 
7275         /* Create slow-path Mailbox Command Complete Queue */
7276         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7277                                       phba->sli4_hba.cq_ecount);
7278         if (!qdesc) {
7279                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7280                                 "0500 Failed allocate slow-path mailbox CQ\n");
7281                 goto out_error;
7282         }
7283         phba->sli4_hba.mbx_cq = qdesc;
7284 
7285         /* Create slow-path ELS Complete Queue */
7286         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7287                                       phba->sli4_hba.cq_ecount);
7288         if (!qdesc) {
7289                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7290                                 "0501 Failed allocate slow-path ELS CQ\n");
7291                 goto out_error;
7292         }
7293         phba->sli4_hba.els_cq = qdesc;
7294 
7295 
7296         /*
7297          * Create Slow Path Work Queues (WQs)
7298          */
7299 
7300         /* Create Mailbox Command Queue */
7301 
7302         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7303                                       phba->sli4_hba.mq_ecount);
7304         if (!qdesc) {
7305                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7306                                 "0505 Failed allocate slow-path MQ\n");
7307                 goto out_error;
7308         }
7309         phba->sli4_hba.mbx_wq = qdesc;
7310 
7311         /*
7312          * Create ELS Work Queues
7313          */
7314 
7315         /* Create slow-path ELS Work Queue */
7316         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7317                                       phba->sli4_hba.wq_ecount);
7318         if (!qdesc) {
7319                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7320                                 "0504 Failed allocate slow-path ELS WQ\n");
7321                 goto out_error;
7322         }
7323         phba->sli4_hba.els_wq = qdesc;
7324 
7325         /*
7326          * Create Receive Queue (RQ)
7327          */
7328 
7329         /* Create Receive Queue for header */
7330         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7331                                       phba->sli4_hba.rq_ecount);
7332         if (!qdesc) {
7333                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7334                                 "0506 Failed allocate receive HRQ\n");
7335                 goto out_error;
7336         }
7337         phba->sli4_hba.hdr_rq = qdesc;
7338 
7339         /* Create Receive Queue for data */
7340         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7341                                       phba->sli4_hba.rq_ecount);
7342         if (!qdesc) {
7343                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7344                                 "0507 Failed allocate receive DRQ\n");
7345                 goto out_error;
7346         }
7347         phba->sli4_hba.dat_rq = qdesc;
7348 
7349         /* Create the Queues needed for Flash Optimized Fabric operations */
7350         if (phba->cfg_fof)
7351                 lpfc_fof_queue_create(phba);
7352         return 0;
7353 
7354 out_error:
7355         lpfc_sli4_queue_destroy(phba);
7356         return -ENOMEM;
7357 }
7358 
7359 /**
7360  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7361  * @phba: pointer to lpfc hba data structure.
7362  *
7363  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7364  * operation.
7365  *
7366  * Return codes
7367  *      0 - successful
7368  *      -ENOMEM - No available memory
7369  *      -EIO - The mailbox failed to complete successfully.
7370  **/
7371 void
7372 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7373 {
7374         int idx;
7375 
7376         if (phba->cfg_fof)
7377                 lpfc_fof_queue_destroy(phba);
7378 
7379         if (phba->sli4_hba.hba_eq != NULL) {
7380                 /* Release HBA event queue */
7381                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7382                         if (phba->sli4_hba.hba_eq[idx] != NULL) {
7383                                 lpfc_sli4_queue_free(
7384                                         phba->sli4_hba.hba_eq[idx]);
7385                                 phba->sli4_hba.hba_eq[idx] = NULL;
7386                         }
7387                 }
7388                 kfree(phba->sli4_hba.hba_eq);
7389                 phba->sli4_hba.hba_eq = NULL;
7390         }
7391 
7392         if (phba->sli4_hba.fcp_cq != NULL) {
7393                 /* Release FCP completion queue */
7394                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7395                         if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7396                                 lpfc_sli4_queue_free(
7397                                         phba->sli4_hba.fcp_cq[idx]);
7398                                 phba->sli4_hba.fcp_cq[idx] = NULL;
7399                         }
7400                 }
7401                 kfree(phba->sli4_hba.fcp_cq);
7402                 phba->sli4_hba.fcp_cq = NULL;
7403         }
7404 
7405         if (phba->sli4_hba.fcp_wq != NULL) {
7406                 /* Release FCP work queue */
7407                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7408                         if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7409                                 lpfc_sli4_queue_free(
7410                                         phba->sli4_hba.fcp_wq[idx]);
7411                                 phba->sli4_hba.fcp_wq[idx] = NULL;
7412                         }
7413                 }
7414                 kfree(phba->sli4_hba.fcp_wq);
7415                 phba->sli4_hba.fcp_wq = NULL;
7416         }
7417 
7418         /* Release FCP CQ mapping array */
7419         if (phba->sli4_hba.fcp_cq_map != NULL) {
7420                 kfree(phba->sli4_hba.fcp_cq_map);
7421                 phba->sli4_hba.fcp_cq_map = NULL;
7422         }
7423 
7424         /* Release mailbox command work queue */
7425         if (phba->sli4_hba.mbx_wq != NULL) {
7426                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7427                 phba->sli4_hba.mbx_wq = NULL;