Version:  2.0.40 2.2.26 2.4.37 3.5 3.6 3.7 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

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                 /* Reset link speed to auto */
704                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
705                         "1302 Invalid speed for this board:%d "
706                         "Reset link speed to auto.\n",
707                         phba->cfg_link_speed);
708                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
709         }
710         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
711         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
712         if (phba->sli_rev < LPFC_SLI_REV4)
713                 lpfc_set_loopback_flag(phba);
714         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
715         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
716                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
717                         "0498 Adapter failed to init, mbxCmd x%x "
718                         "INIT_LINK, mbxStatus x%x\n",
719                         mb->mbxCommand, mb->mbxStatus);
720                 if (phba->sli_rev <= LPFC_SLI_REV3) {
721                         /* Clear all interrupt enable conditions */
722                         writel(0, phba->HCregaddr);
723                         readl(phba->HCregaddr); /* flush */
724                         /* Clear all pending interrupts */
725                         writel(0xffffffff, phba->HAregaddr);
726                         readl(phba->HAregaddr); /* flush */
727                 }
728                 phba->link_state = LPFC_HBA_ERROR;
729                 if (rc != MBX_BUSY || flag == MBX_POLL)
730                         mempool_free(pmb, phba->mbox_mem_pool);
731                 return -EIO;
732         }
733         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
734         if (flag == MBX_POLL)
735                 mempool_free(pmb, phba->mbox_mem_pool);
736 
737         return 0;
738 }
739 
740 /**
741  * lpfc_hba_down_link - this routine downs the FC link
742  * @phba: pointer to lpfc hba data structure.
743  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
744  *
745  * This routine will issue the DOWN_LINK mailbox command call.
746  * It is available to other drivers through the lpfc_hba data
747  * structure for use to stop the link.
748  *
749  * Return code
750  *              0 - success
751  *              Any other value - error
752  **/
753 static int
754 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
755 {
756         LPFC_MBOXQ_t *pmb;
757         int rc;
758 
759         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
760         if (!pmb) {
761                 phba->link_state = LPFC_HBA_ERROR;
762                 return -ENOMEM;
763         }
764 
765         lpfc_printf_log(phba,
766                 KERN_ERR, LOG_INIT,
767                 "0491 Adapter Link is disabled.\n");
768         lpfc_down_link(phba, pmb);
769         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
770         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
771         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
772                 lpfc_printf_log(phba,
773                 KERN_ERR, LOG_INIT,
774                 "2522 Adapter failed to issue DOWN_LINK"
775                 " mbox command rc 0x%x\n", rc);
776 
777                 mempool_free(pmb, phba->mbox_mem_pool);
778                 return -EIO;
779         }
780         if (flag == MBX_POLL)
781                 mempool_free(pmb, phba->mbox_mem_pool);
782 
783         return 0;
784 }
785 
786 /**
787  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
788  * @phba: pointer to lpfc HBA data structure.
789  *
790  * This routine will do LPFC uninitialization before the HBA is reset when
791  * bringing down the SLI Layer.
792  *
793  * Return codes
794  *   0 - success.
795  *   Any other value - error.
796  **/
797 int
798 lpfc_hba_down_prep(struct lpfc_hba *phba)
799 {
800         struct lpfc_vport **vports;
801         int i;
802 
803         if (phba->sli_rev <= LPFC_SLI_REV3) {
804                 /* Disable interrupts */
805                 writel(0, phba->HCregaddr);
806                 readl(phba->HCregaddr); /* flush */
807         }
808 
809         if (phba->pport->load_flag & FC_UNLOADING)
810                 lpfc_cleanup_discovery_resources(phba->pport);
811         else {
812                 vports = lpfc_create_vport_work_array(phba);
813                 if (vports != NULL)
814                         for (i = 0; i <= phba->max_vports &&
815                                 vports[i] != NULL; i++)
816                                 lpfc_cleanup_discovery_resources(vports[i]);
817                 lpfc_destroy_vport_work_array(phba, vports);
818         }
819         return 0;
820 }
821 
822 /**
823  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
824  * rspiocb which got deferred
825  *
826  * @phba: pointer to lpfc HBA data structure.
827  *
828  * This routine will cleanup completed slow path events after HBA is reset
829  * when bringing down the SLI Layer.
830  *
831  *
832  * Return codes
833  *   void.
834  **/
835 static void
836 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
837 {
838         struct lpfc_iocbq *rspiocbq;
839         struct hbq_dmabuf *dmabuf;
840         struct lpfc_cq_event *cq_event;
841 
842         spin_lock_irq(&phba->hbalock);
843         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
844         spin_unlock_irq(&phba->hbalock);
845 
846         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
847                 /* Get the response iocb from the head of work queue */
848                 spin_lock_irq(&phba->hbalock);
849                 list_remove_head(&phba->sli4_hba.sp_queue_event,
850                                  cq_event, struct lpfc_cq_event, list);
851                 spin_unlock_irq(&phba->hbalock);
852 
853                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
854                 case CQE_CODE_COMPL_WQE:
855                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
856                                                  cq_event);
857                         lpfc_sli_release_iocbq(phba, rspiocbq);
858                         break;
859                 case CQE_CODE_RECEIVE:
860                 case CQE_CODE_RECEIVE_V1:
861                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
862                                               cq_event);
863                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
864                 }
865         }
866 }
867 
868 /**
869  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
870  * @phba: pointer to lpfc HBA data structure.
871  *
872  * This routine will cleanup posted ELS buffers after the HBA is reset
873  * when bringing down the SLI Layer.
874  *
875  *
876  * Return codes
877  *   void.
878  **/
879 static void
880 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
881 {
882         struct lpfc_sli *psli = &phba->sli;
883         struct lpfc_sli_ring *pring;
884         struct lpfc_dmabuf *mp, *next_mp;
885         LIST_HEAD(buflist);
886         int count;
887 
888         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
889                 lpfc_sli_hbqbuf_free_all(phba);
890         else {
891                 /* Cleanup preposted buffers on the ELS ring */
892                 pring = &psli->ring[LPFC_ELS_RING];
893                 spin_lock_irq(&phba->hbalock);
894                 list_splice_init(&pring->postbufq, &buflist);
895                 spin_unlock_irq(&phba->hbalock);
896 
897                 count = 0;
898                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
899                         list_del(&mp->list);
900                         count++;
901                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
902                         kfree(mp);
903                 }
904 
905                 spin_lock_irq(&phba->hbalock);
906                 pring->postbufq_cnt -= count;
907                 spin_unlock_irq(&phba->hbalock);
908         }
909 }
910 
911 /**
912  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
913  * @phba: pointer to lpfc HBA data structure.
914  *
915  * This routine will cleanup the txcmplq after the HBA is reset when bringing
916  * down the SLI Layer.
917  *
918  * Return codes
919  *   void
920  **/
921 static void
922 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
923 {
924         struct lpfc_sli *psli = &phba->sli;
925         struct lpfc_sli_ring *pring;
926         LIST_HEAD(completions);
927         int i;
928 
929         for (i = 0; i < psli->num_rings; i++) {
930                 pring = &psli->ring[i];
931                 if (phba->sli_rev >= LPFC_SLI_REV4)
932                         spin_lock_irq(&pring->ring_lock);
933                 else
934                         spin_lock_irq(&phba->hbalock);
935                 /* At this point in time the HBA is either reset or DOA. Either
936                  * way, nothing should be on txcmplq as it will NEVER complete.
937                  */
938                 list_splice_init(&pring->txcmplq, &completions);
939                 pring->txcmplq_cnt = 0;
940 
941                 if (phba->sli_rev >= LPFC_SLI_REV4)
942                         spin_unlock_irq(&pring->ring_lock);
943                 else
944                         spin_unlock_irq(&phba->hbalock);
945 
946                 /* Cancel all the IOCBs from the completions list */
947                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
948                                       IOERR_SLI_ABORTED);
949                 lpfc_sli_abort_iocb_ring(phba, pring);
950         }
951 }
952 
953 /**
954  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
955         int i;
956  * @phba: pointer to lpfc HBA data structure.
957  *
958  * This routine will do uninitialization after the HBA is reset when bring
959  * down the SLI Layer.
960  *
961  * Return codes
962  *   0 - success.
963  *   Any other value - error.
964  **/
965 static int
966 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
967 {
968         lpfc_hba_free_post_buf(phba);
969         lpfc_hba_clean_txcmplq(phba);
970         return 0;
971 }
972 
973 /**
974  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
975  * @phba: pointer to lpfc HBA data structure.
976  *
977  * This routine will do uninitialization after the HBA is reset when bring
978  * down the SLI Layer.
979  *
980  * Return codes
981  *   0 - success.
982  *   Any other value - error.
983  **/
984 static int
985 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
986 {
987         struct lpfc_scsi_buf *psb, *psb_next;
988         LIST_HEAD(aborts);
989         unsigned long iflag = 0;
990         struct lpfc_sglq *sglq_entry = NULL;
991         struct lpfc_sli *psli = &phba->sli;
992         struct lpfc_sli_ring *pring;
993 
994         lpfc_hba_free_post_buf(phba);
995         lpfc_hba_clean_txcmplq(phba);
996         pring = &psli->ring[LPFC_ELS_RING];
997 
998         /* At this point in time the HBA is either reset or DOA. Either
999          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1000          * on the lpfc_sgl_list so that it can either be freed if the
1001          * driver is unloading or reposted if the driver is restarting
1002          * the port.
1003          */
1004         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
1005                                         /* scsl_buf_list */
1006         /* abts_sgl_list_lock required because worker thread uses this
1007          * list.
1008          */
1009         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
1010         list_for_each_entry(sglq_entry,
1011                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1012                 sglq_entry->state = SGL_FREED;
1013 
1014         spin_lock(&pring->ring_lock);
1015         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1016                         &phba->sli4_hba.lpfc_sgl_list);
1017         spin_unlock(&pring->ring_lock);
1018         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
1019         /* abts_scsi_buf_list_lock required because worker thread uses this
1020          * list.
1021          */
1022         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1023         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1024                         &aborts);
1025         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1026         spin_unlock_irq(&phba->hbalock);
1027 
1028         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1029                 psb->pCmd = NULL;
1030                 psb->status = IOSTAT_SUCCESS;
1031         }
1032         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1033         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1034         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1035 
1036         lpfc_sli4_free_sp_events(phba);
1037         return 0;
1038 }
1039 
1040 /**
1041  * lpfc_hba_down_post - Wrapper func for hba down post routine
1042  * @phba: pointer to lpfc HBA data structure.
1043  *
1044  * This routine wraps the actual SLI3 or SLI4 routine for performing
1045  * uninitialization after the HBA is reset when bring down the SLI Layer.
1046  *
1047  * Return codes
1048  *   0 - success.
1049  *   Any other value - error.
1050  **/
1051 int
1052 lpfc_hba_down_post(struct lpfc_hba *phba)
1053 {
1054         return (*phba->lpfc_hba_down_post)(phba);
1055 }
1056 
1057 /**
1058  * lpfc_hb_timeout - The HBA-timer timeout handler
1059  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1060  *
1061  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1062  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1063  * work-port-events bitmap and the worker thread is notified. This timeout
1064  * event will be used by the worker thread to invoke the actual timeout
1065  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1066  * be performed in the timeout handler and the HBA timeout event bit shall
1067  * be cleared by the worker thread after it has taken the event bitmap out.
1068  **/
1069 static void
1070 lpfc_hb_timeout(unsigned long ptr)
1071 {
1072         struct lpfc_hba *phba;
1073         uint32_t tmo_posted;
1074         unsigned long iflag;
1075 
1076         phba = (struct lpfc_hba *)ptr;
1077 
1078         /* Check for heart beat timeout conditions */
1079         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1080         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1081         if (!tmo_posted)
1082                 phba->pport->work_port_events |= WORKER_HB_TMO;
1083         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1084 
1085         /* Tell the worker thread there is work to do */
1086         if (!tmo_posted)
1087                 lpfc_worker_wake_up(phba);
1088         return;
1089 }
1090 
1091 /**
1092  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1093  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1094  *
1095  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1096  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1097  * work-port-events bitmap and the worker thread is notified. This timeout
1098  * event will be used by the worker thread to invoke the actual timeout
1099  * handler routine, lpfc_rrq_handler. Any periodical operations will
1100  * be performed in the timeout handler and the RRQ timeout event bit shall
1101  * be cleared by the worker thread after it has taken the event bitmap out.
1102  **/
1103 static void
1104 lpfc_rrq_timeout(unsigned long ptr)
1105 {
1106         struct lpfc_hba *phba;
1107         unsigned long iflag;
1108 
1109         phba = (struct lpfc_hba *)ptr;
1110         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1111         if (!(phba->pport->load_flag & FC_UNLOADING))
1112                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1113         else
1114                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1115         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1116 
1117         if (!(phba->pport->load_flag & FC_UNLOADING))
1118                 lpfc_worker_wake_up(phba);
1119 }
1120 
1121 /**
1122  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1123  * @phba: pointer to lpfc hba data structure.
1124  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1125  *
1126  * This is the callback function to the lpfc heart-beat mailbox command.
1127  * If configured, the lpfc driver issues the heart-beat mailbox command to
1128  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1129  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1130  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1131  * heart-beat outstanding state. Once the mailbox command comes back and
1132  * no error conditions detected, the heart-beat mailbox command timer is
1133  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1134  * state is cleared for the next heart-beat. If the timer expired with the
1135  * heart-beat outstanding state set, the driver will put the HBA offline.
1136  **/
1137 static void
1138 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1139 {
1140         unsigned long drvr_flag;
1141 
1142         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1143         phba->hb_outstanding = 0;
1144         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1145 
1146         /* Check and reset heart-beat timer is necessary */
1147         mempool_free(pmboxq, phba->mbox_mem_pool);
1148         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1149                 !(phba->link_state == LPFC_HBA_ERROR) &&
1150                 !(phba->pport->load_flag & FC_UNLOADING))
1151                 mod_timer(&phba->hb_tmofunc,
1152                           jiffies +
1153                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1154         return;
1155 }
1156 
1157 /**
1158  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1159  * @phba: pointer to lpfc hba data structure.
1160  *
1161  * This is the actual HBA-timer timeout handler to be invoked by the worker
1162  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1163  * handler performs any periodic operations needed for the device. If such
1164  * periodic event has already been attended to either in the interrupt handler
1165  * or by processing slow-ring or fast-ring events within the HBA-timer
1166  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1167  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1168  * is configured and there is no heart-beat mailbox command outstanding, a
1169  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1170  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1171  * to offline.
1172  **/
1173 void
1174 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1175 {
1176         struct lpfc_vport **vports;
1177         LPFC_MBOXQ_t *pmboxq;
1178         struct lpfc_dmabuf *buf_ptr;
1179         int retval, i;
1180         struct lpfc_sli *psli = &phba->sli;
1181         LIST_HEAD(completions);
1182 
1183         vports = lpfc_create_vport_work_array(phba);
1184         if (vports != NULL)
1185                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1186                         lpfc_rcv_seq_check_edtov(vports[i]);
1187         lpfc_destroy_vport_work_array(phba, vports);
1188 
1189         if ((phba->link_state == LPFC_HBA_ERROR) ||
1190                 (phba->pport->load_flag & FC_UNLOADING) ||
1191                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1192                 return;
1193 
1194         spin_lock_irq(&phba->pport->work_port_lock);
1195 
1196         if (time_after(phba->last_completion_time +
1197                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1198                         jiffies)) {
1199                 spin_unlock_irq(&phba->pport->work_port_lock);
1200                 if (!phba->hb_outstanding)
1201                         mod_timer(&phba->hb_tmofunc,
1202                                 jiffies +
1203                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1204                 else
1205                         mod_timer(&phba->hb_tmofunc,
1206                                 jiffies +
1207                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1208                 return;
1209         }
1210         spin_unlock_irq(&phba->pport->work_port_lock);
1211 
1212         if (phba->elsbuf_cnt &&
1213                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1214                 spin_lock_irq(&phba->hbalock);
1215                 list_splice_init(&phba->elsbuf, &completions);
1216                 phba->elsbuf_cnt = 0;
1217                 phba->elsbuf_prev_cnt = 0;
1218                 spin_unlock_irq(&phba->hbalock);
1219 
1220                 while (!list_empty(&completions)) {
1221                         list_remove_head(&completions, buf_ptr,
1222                                 struct lpfc_dmabuf, list);
1223                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1224                         kfree(buf_ptr);
1225                 }
1226         }
1227         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1228 
1229         /* If there is no heart beat outstanding, issue a heartbeat command */
1230         if (phba->cfg_enable_hba_heartbeat) {
1231                 if (!phba->hb_outstanding) {
1232                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1233                                 (list_empty(&psli->mboxq))) {
1234                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1235                                                         GFP_KERNEL);
1236                                 if (!pmboxq) {
1237                                         mod_timer(&phba->hb_tmofunc,
1238                                                  jiffies +
1239                                                  msecs_to_jiffies(1000 *
1240                                                  LPFC_HB_MBOX_INTERVAL));
1241                                         return;
1242                                 }
1243 
1244                                 lpfc_heart_beat(phba, pmboxq);
1245                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1246                                 pmboxq->vport = phba->pport;
1247                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1248                                                 MBX_NOWAIT);
1249 
1250                                 if (retval != MBX_BUSY &&
1251                                         retval != MBX_SUCCESS) {
1252                                         mempool_free(pmboxq,
1253                                                         phba->mbox_mem_pool);
1254                                         mod_timer(&phba->hb_tmofunc,
1255                                                 jiffies +
1256                                                 msecs_to_jiffies(1000 *
1257                                                 LPFC_HB_MBOX_INTERVAL));
1258                                         return;
1259                                 }
1260                                 phba->skipped_hb = 0;
1261                                 phba->hb_outstanding = 1;
1262                         } else if (time_before_eq(phba->last_completion_time,
1263                                         phba->skipped_hb)) {
1264                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1265                                         "2857 Last completion time not "
1266                                         " updated in %d ms\n",
1267                                         jiffies_to_msecs(jiffies
1268                                                  - phba->last_completion_time));
1269                         } else
1270                                 phba->skipped_hb = jiffies;
1271 
1272                         mod_timer(&phba->hb_tmofunc,
1273                                  jiffies +
1274                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1275                         return;
1276                 } else {
1277                         /*
1278                         * If heart beat timeout called with hb_outstanding set
1279                         * we need to give the hb mailbox cmd a chance to
1280                         * complete or TMO.
1281                         */
1282                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1283                                         "0459 Adapter heartbeat still out"
1284                                         "standing:last compl time was %d ms.\n",
1285                                         jiffies_to_msecs(jiffies
1286                                                  - phba->last_completion_time));
1287                         mod_timer(&phba->hb_tmofunc,
1288                                 jiffies +
1289                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1290                 }
1291         }
1292 }
1293 
1294 /**
1295  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1296  * @phba: pointer to lpfc hba data structure.
1297  *
1298  * This routine is called to bring the HBA offline when HBA hardware error
1299  * other than Port Error 6 has been detected.
1300  **/
1301 static void
1302 lpfc_offline_eratt(struct lpfc_hba *phba)
1303 {
1304         struct lpfc_sli   *psli = &phba->sli;
1305 
1306         spin_lock_irq(&phba->hbalock);
1307         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1308         spin_unlock_irq(&phba->hbalock);
1309         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1310 
1311         lpfc_offline(phba);
1312         lpfc_reset_barrier(phba);
1313         spin_lock_irq(&phba->hbalock);
1314         lpfc_sli_brdreset(phba);
1315         spin_unlock_irq(&phba->hbalock);
1316         lpfc_hba_down_post(phba);
1317         lpfc_sli_brdready(phba, HS_MBRDY);
1318         lpfc_unblock_mgmt_io(phba);
1319         phba->link_state = LPFC_HBA_ERROR;
1320         return;
1321 }
1322 
1323 /**
1324  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1325  * @phba: pointer to lpfc hba data structure.
1326  *
1327  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1328  * other than Port Error 6 has been detected.
1329  **/
1330 void
1331 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1332 {
1333         spin_lock_irq(&phba->hbalock);
1334         phba->link_state = LPFC_HBA_ERROR;
1335         spin_unlock_irq(&phba->hbalock);
1336 
1337         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1338         lpfc_offline(phba);
1339         lpfc_hba_down_post(phba);
1340         lpfc_unblock_mgmt_io(phba);
1341 }
1342 
1343 /**
1344  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1345  * @phba: pointer to lpfc hba data structure.
1346  *
1347  * This routine is invoked to handle the deferred HBA hardware error
1348  * conditions. This type of error is indicated by HBA by setting ER1
1349  * and another ER bit in the host status register. The driver will
1350  * wait until the ER1 bit clears before handling the error condition.
1351  **/
1352 static void
1353 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1354 {
1355         uint32_t old_host_status = phba->work_hs;
1356         struct lpfc_sli *psli = &phba->sli;
1357 
1358         /* If the pci channel is offline, ignore possible errors,
1359          * since we cannot communicate with the pci card anyway.
1360          */
1361         if (pci_channel_offline(phba->pcidev)) {
1362                 spin_lock_irq(&phba->hbalock);
1363                 phba->hba_flag &= ~DEFER_ERATT;
1364                 spin_unlock_irq(&phba->hbalock);
1365                 return;
1366         }
1367 
1368         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1369                 "0479 Deferred Adapter Hardware Error "
1370                 "Data: x%x x%x x%x\n",
1371                 phba->work_hs,
1372                 phba->work_status[0], phba->work_status[1]);
1373 
1374         spin_lock_irq(&phba->hbalock);
1375         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1376         spin_unlock_irq(&phba->hbalock);
1377 
1378 
1379         /*
1380          * Firmware stops when it triggred erratt. That could cause the I/Os
1381          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1382          * SCSI layer retry it after re-establishing link.
1383          */
1384         lpfc_sli_abort_fcp_rings(phba);
1385 
1386         /*
1387          * There was a firmware error. Take the hba offline and then
1388          * attempt to restart it.
1389          */
1390         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1391         lpfc_offline(phba);
1392 
1393         /* Wait for the ER1 bit to clear.*/
1394         while (phba->work_hs & HS_FFER1) {
1395                 msleep(100);
1396                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1397                         phba->work_hs = UNPLUG_ERR ;
1398                         break;
1399                 }
1400                 /* If driver is unloading let the worker thread continue */
1401                 if (phba->pport->load_flag & FC_UNLOADING) {
1402                         phba->work_hs = 0;
1403                         break;
1404                 }
1405         }
1406 
1407         /*
1408          * This is to ptrotect against a race condition in which
1409          * first write to the host attention register clear the
1410          * host status register.
1411          */
1412         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1413                 phba->work_hs = old_host_status & ~HS_FFER1;
1414 
1415         spin_lock_irq(&phba->hbalock);
1416         phba->hba_flag &= ~DEFER_ERATT;
1417         spin_unlock_irq(&phba->hbalock);
1418         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1419         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1420 }
1421 
1422 static void
1423 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1424 {
1425         struct lpfc_board_event_header board_event;
1426         struct Scsi_Host *shost;
1427 
1428         board_event.event_type = FC_REG_BOARD_EVENT;
1429         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1430         shost = lpfc_shost_from_vport(phba->pport);
1431         fc_host_post_vendor_event(shost, fc_get_event_number(),
1432                                   sizeof(board_event),
1433                                   (char *) &board_event,
1434                                   LPFC_NL_VENDOR_ID);
1435 }
1436 
1437 /**
1438  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1439  * @phba: pointer to lpfc hba data structure.
1440  *
1441  * This routine is invoked to handle the following HBA hardware error
1442  * conditions:
1443  * 1 - HBA error attention interrupt
1444  * 2 - DMA ring index out of range
1445  * 3 - Mailbox command came back as unknown
1446  **/
1447 static void
1448 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1449 {
1450         struct lpfc_vport *vport = phba->pport;
1451         struct lpfc_sli   *psli = &phba->sli;
1452         uint32_t event_data;
1453         unsigned long temperature;
1454         struct temp_event temp_event_data;
1455         struct Scsi_Host  *shost;
1456 
1457         /* If the pci channel is offline, ignore possible errors,
1458          * since we cannot communicate with the pci card anyway.
1459          */
1460         if (pci_channel_offline(phba->pcidev)) {
1461                 spin_lock_irq(&phba->hbalock);
1462                 phba->hba_flag &= ~DEFER_ERATT;
1463                 spin_unlock_irq(&phba->hbalock);
1464                 return;
1465         }
1466 
1467         /* If resets are disabled then leave the HBA alone and return */
1468         if (!phba->cfg_enable_hba_reset)
1469                 return;
1470 
1471         /* Send an internal error event to mgmt application */
1472         lpfc_board_errevt_to_mgmt(phba);
1473 
1474         if (phba->hba_flag & DEFER_ERATT)
1475                 lpfc_handle_deferred_eratt(phba);
1476 
1477         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1478                 if (phba->work_hs & HS_FFER6)
1479                         /* Re-establishing Link */
1480                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1481                                         "1301 Re-establishing Link "
1482                                         "Data: x%x x%x x%x\n",
1483                                         phba->work_hs, phba->work_status[0],
1484                                         phba->work_status[1]);
1485                 if (phba->work_hs & HS_FFER8)
1486                         /* Device Zeroization */
1487                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1488                                         "2861 Host Authentication device "
1489                                         "zeroization Data:x%x x%x x%x\n",
1490                                         phba->work_hs, phba->work_status[0],
1491                                         phba->work_status[1]);
1492 
1493                 spin_lock_irq(&phba->hbalock);
1494                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1495                 spin_unlock_irq(&phba->hbalock);
1496 
1497                 /*
1498                 * Firmware stops when it triggled erratt with HS_FFER6.
1499                 * That could cause the I/Os dropped by the firmware.
1500                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1501                 * retry it after re-establishing link.
1502                 */
1503                 lpfc_sli_abort_fcp_rings(phba);
1504 
1505                 /*
1506                  * There was a firmware error.  Take the hba offline and then
1507                  * attempt to restart it.
1508                  */
1509                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1510                 lpfc_offline(phba);
1511                 lpfc_sli_brdrestart(phba);
1512                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1513                         lpfc_unblock_mgmt_io(phba);
1514                         return;
1515                 }
1516                 lpfc_unblock_mgmt_io(phba);
1517         } else if (phba->work_hs & HS_CRIT_TEMP) {
1518                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1519                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1520                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1521                 temp_event_data.data = (uint32_t)temperature;
1522 
1523                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1524                                 "0406 Adapter maximum temperature exceeded "
1525                                 "(%ld), taking this port offline "
1526                                 "Data: x%x x%x x%x\n",
1527                                 temperature, phba->work_hs,
1528                                 phba->work_status[0], phba->work_status[1]);
1529 
1530                 shost = lpfc_shost_from_vport(phba->pport);
1531                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1532                                           sizeof(temp_event_data),
1533                                           (char *) &temp_event_data,
1534                                           SCSI_NL_VID_TYPE_PCI
1535                                           | PCI_VENDOR_ID_EMULEX);
1536 
1537                 spin_lock_irq(&phba->hbalock);
1538                 phba->over_temp_state = HBA_OVER_TEMP;
1539                 spin_unlock_irq(&phba->hbalock);
1540                 lpfc_offline_eratt(phba);
1541 
1542         } else {
1543                 /* The if clause above forces this code path when the status
1544                  * failure is a value other than FFER6. Do not call the offline
1545                  * twice. This is the adapter hardware error path.
1546                  */
1547                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1548                                 "0457 Adapter Hardware Error "
1549                                 "Data: x%x x%x x%x\n",
1550                                 phba->work_hs,
1551                                 phba->work_status[0], phba->work_status[1]);
1552 
1553                 event_data = FC_REG_DUMP_EVENT;
1554                 shost = lpfc_shost_from_vport(vport);
1555                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1556                                 sizeof(event_data), (char *) &event_data,
1557                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1558 
1559                 lpfc_offline_eratt(phba);
1560         }
1561         return;
1562 }
1563 
1564 /**
1565  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1566  * @phba: pointer to lpfc hba data structure.
1567  * @mbx_action: flag for mailbox shutdown action.
1568  *
1569  * This routine is invoked to perform an SLI4 port PCI function reset in
1570  * response to port status register polling attention. It waits for port
1571  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1572  * During this process, interrupt vectors are freed and later requested
1573  * for handling possible port resource change.
1574  **/
1575 static int
1576 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1577                             bool en_rn_msg)
1578 {
1579         int rc;
1580         uint32_t intr_mode;
1581 
1582         /*
1583          * On error status condition, driver need to wait for port
1584          * ready before performing reset.
1585          */
1586         rc = lpfc_sli4_pdev_status_reg_wait(phba);
1587         if (!rc) {
1588                 /* need reset: attempt for port recovery */
1589                 if (en_rn_msg)
1590                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1591                                         "2887 Reset Needed: Attempting Port "
1592                                         "Recovery...\n");
1593                 lpfc_offline_prep(phba, mbx_action);
1594                 lpfc_offline(phba);
1595                 /* release interrupt for possible resource change */
1596                 lpfc_sli4_disable_intr(phba);
1597                 lpfc_sli_brdrestart(phba);
1598                 /* request and enable interrupt */
1599                 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1600                 if (intr_mode == LPFC_INTR_ERROR) {
1601                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1602                                         "3175 Failed to enable interrupt\n");
1603                         return -EIO;
1604                 } else {
1605                         phba->intr_mode = intr_mode;
1606                 }
1607                 rc = lpfc_online(phba);
1608                 if (rc == 0)
1609                         lpfc_unblock_mgmt_io(phba);
1610         }
1611         return rc;
1612 }
1613 
1614 /**
1615  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1616  * @phba: pointer to lpfc hba data structure.
1617  *
1618  * This routine is invoked to handle the SLI4 HBA hardware error attention
1619  * conditions.
1620  **/
1621 static void
1622 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1623 {
1624         struct lpfc_vport *vport = phba->pport;
1625         uint32_t event_data;
1626         struct Scsi_Host *shost;
1627         uint32_t if_type;
1628         struct lpfc_register portstat_reg = {0};
1629         uint32_t reg_err1, reg_err2;
1630         uint32_t uerrlo_reg, uemasklo_reg;
1631         uint32_t pci_rd_rc1, pci_rd_rc2;
1632         bool en_rn_msg = true;
1633         struct temp_event temp_event_data;
1634         int rc;
1635 
1636         /* If the pci channel is offline, ignore possible errors, since
1637          * we cannot communicate with the pci card anyway.
1638          */
1639         if (pci_channel_offline(phba->pcidev))
1640                 return;
1641 
1642         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1643         switch (if_type) {
1644         case LPFC_SLI_INTF_IF_TYPE_0:
1645                 pci_rd_rc1 = lpfc_readl(
1646                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1647                                 &uerrlo_reg);
1648                 pci_rd_rc2 = lpfc_readl(
1649                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1650                                 &uemasklo_reg);
1651                 /* consider PCI bus read error as pci_channel_offline */
1652                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1653                         return;
1654                 lpfc_sli4_offline_eratt(phba);
1655                 break;
1656 
1657         case LPFC_SLI_INTF_IF_TYPE_2:
1658                 pci_rd_rc1 = lpfc_readl(
1659                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1660                                 &portstat_reg.word0);
1661                 /* consider PCI bus read error as pci_channel_offline */
1662                 if (pci_rd_rc1 == -EIO) {
1663                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1664                                 "3151 PCI bus read access failure: x%x\n",
1665                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1666                         return;
1667                 }
1668                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1669                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1670                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1671                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1672                                 "2889 Port Overtemperature event, "
1673                                 "taking port offline Data: x%x x%x\n",
1674                                 reg_err1, reg_err2);
1675 
1676                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1677                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1678                         temp_event_data.data = 0xFFFFFFFF;
1679 
1680                         shost = lpfc_shost_from_vport(phba->pport);
1681                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1682                                                   sizeof(temp_event_data),
1683                                                   (char *)&temp_event_data,
1684                                                   SCSI_NL_VID_TYPE_PCI
1685                                                   | PCI_VENDOR_ID_EMULEX);
1686 
1687                         spin_lock_irq(&phba->hbalock);
1688                         phba->over_temp_state = HBA_OVER_TEMP;
1689                         spin_unlock_irq(&phba->hbalock);
1690                         lpfc_sli4_offline_eratt(phba);
1691                         return;
1692                 }
1693                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1694                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1695                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1696                                         "3143 Port Down: Firmware Update "
1697                                         "Detected\n");
1698                         en_rn_msg = false;
1699                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1700                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1701                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1702                                         "3144 Port Down: Debug Dump\n");
1703                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1704                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1705                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1706                                         "3145 Port Down: Provisioning\n");
1707 
1708                 /* If resets are disabled then leave the HBA alone and return */
1709                 if (!phba->cfg_enable_hba_reset)
1710                         return;
1711 
1712                 /* Check port status register for function reset */
1713                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1714                                 en_rn_msg);
1715                 if (rc == 0) {
1716                         /* don't report event on forced debug dump */
1717                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1718                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1719                                 return;
1720                         else
1721                                 break;
1722                 }
1723                 /* fall through for not able to recover */
1724                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1725                                 "3152 Unrecoverable error, bring the port "
1726                                 "offline\n");
1727                 lpfc_sli4_offline_eratt(phba);
1728                 break;
1729         case LPFC_SLI_INTF_IF_TYPE_1:
1730         default:
1731                 break;
1732         }
1733         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1734                         "3123 Report dump event to upper layer\n");
1735         /* Send an internal error event to mgmt application */
1736         lpfc_board_errevt_to_mgmt(phba);
1737 
1738         event_data = FC_REG_DUMP_EVENT;
1739         shost = lpfc_shost_from_vport(vport);
1740         fc_host_post_vendor_event(shost, fc_get_event_number(),
1741                                   sizeof(event_data), (char *) &event_data,
1742                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1743 }
1744 
1745 /**
1746  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1747  * @phba: pointer to lpfc HBA data structure.
1748  *
1749  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1750  * routine from the API jump table function pointer from the lpfc_hba struct.
1751  *
1752  * Return codes
1753  *   0 - success.
1754  *   Any other value - error.
1755  **/
1756 void
1757 lpfc_handle_eratt(struct lpfc_hba *phba)
1758 {
1759         (*phba->lpfc_handle_eratt)(phba);
1760 }
1761 
1762 /**
1763  * lpfc_handle_latt - The HBA link event handler
1764  * @phba: pointer to lpfc hba data structure.
1765  *
1766  * This routine is invoked from the worker thread to handle a HBA host
1767  * attention link event.
1768  **/
1769 void
1770 lpfc_handle_latt(struct lpfc_hba *phba)
1771 {
1772         struct lpfc_vport *vport = phba->pport;
1773         struct lpfc_sli   *psli = &phba->sli;
1774         LPFC_MBOXQ_t *pmb;
1775         volatile uint32_t control;
1776         struct lpfc_dmabuf *mp;
1777         int rc = 0;
1778 
1779         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1780         if (!pmb) {
1781                 rc = 1;
1782                 goto lpfc_handle_latt_err_exit;
1783         }
1784 
1785         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1786         if (!mp) {
1787                 rc = 2;
1788                 goto lpfc_handle_latt_free_pmb;
1789         }
1790 
1791         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1792         if (!mp->virt) {
1793                 rc = 3;
1794                 goto lpfc_handle_latt_free_mp;
1795         }
1796 
1797         /* Cleanup any outstanding ELS commands */
1798         lpfc_els_flush_all_cmd(phba);
1799 
1800         psli->slistat.link_event++;
1801         lpfc_read_topology(phba, pmb, mp);
1802         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1803         pmb->vport = vport;
1804         /* Block ELS IOCBs until we have processed this mbox command */
1805         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1806         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1807         if (rc == MBX_NOT_FINISHED) {
1808                 rc = 4;
1809                 goto lpfc_handle_latt_free_mbuf;
1810         }
1811 
1812         /* Clear Link Attention in HA REG */
1813         spin_lock_irq(&phba->hbalock);
1814         writel(HA_LATT, phba->HAregaddr);
1815         readl(phba->HAregaddr); /* flush */
1816         spin_unlock_irq(&phba->hbalock);
1817 
1818         return;
1819 
1820 lpfc_handle_latt_free_mbuf:
1821         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1822         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1823 lpfc_handle_latt_free_mp:
1824         kfree(mp);
1825 lpfc_handle_latt_free_pmb:
1826         mempool_free(pmb, phba->mbox_mem_pool);
1827 lpfc_handle_latt_err_exit:
1828         /* Enable Link attention interrupts */
1829         spin_lock_irq(&phba->hbalock);
1830         psli->sli_flag |= LPFC_PROCESS_LA;
1831         control = readl(phba->HCregaddr);
1832         control |= HC_LAINT_ENA;
1833         writel(control, phba->HCregaddr);
1834         readl(phba->HCregaddr); /* flush */
1835 
1836         /* Clear Link Attention in HA REG */
1837         writel(HA_LATT, phba->HAregaddr);
1838         readl(phba->HAregaddr); /* flush */
1839         spin_unlock_irq(&phba->hbalock);
1840         lpfc_linkdown(phba);
1841         phba->link_state = LPFC_HBA_ERROR;
1842 
1843         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1844                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1845 
1846         return;
1847 }
1848 
1849 /**
1850  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1851  * @phba: pointer to lpfc hba data structure.
1852  * @vpd: pointer to the vital product data.
1853  * @len: length of the vital product data in bytes.
1854  *
1855  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1856  * an array of characters. In this routine, the ModelName, ProgramType, and
1857  * ModelDesc, etc. fields of the phba data structure will be populated.
1858  *
1859  * Return codes
1860  *   0 - pointer to the VPD passed in is NULL
1861  *   1 - success
1862  **/
1863 int
1864 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1865 {
1866         uint8_t lenlo, lenhi;
1867         int Length;
1868         int i, j;
1869         int finished = 0;
1870         int index = 0;
1871 
1872         if (!vpd)
1873                 return 0;
1874 
1875         /* Vital Product */
1876         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1877                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1878                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1879                         (uint32_t) vpd[3]);
1880         while (!finished && (index < (len - 4))) {
1881                 switch (vpd[index]) {
1882                 case 0x82:
1883                 case 0x91:
1884                         index += 1;
1885                         lenlo = vpd[index];
1886                         index += 1;
1887                         lenhi = vpd[index];
1888                         index += 1;
1889                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1890                         index += i;
1891                         break;
1892                 case 0x90:
1893                         index += 1;
1894                         lenlo = vpd[index];
1895                         index += 1;
1896                         lenhi = vpd[index];
1897                         index += 1;
1898                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1899                         if (Length > len - index)
1900                                 Length = len - index;
1901                         while (Length > 0) {
1902                         /* Look for Serial Number */
1903                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1904                                 index += 2;
1905                                 i = vpd[index];
1906                                 index += 1;
1907                                 j = 0;
1908                                 Length -= (3+i);
1909                                 while(i--) {
1910                                         phba->SerialNumber[j++] = vpd[index++];
1911                                         if (j == 31)
1912                                                 break;
1913                                 }
1914                                 phba->SerialNumber[j] = 0;
1915                                 continue;
1916                         }
1917                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1918                                 phba->vpd_flag |= VPD_MODEL_DESC;
1919                                 index += 2;
1920                                 i = vpd[index];
1921                                 index += 1;
1922                                 j = 0;
1923                                 Length -= (3+i);
1924                                 while(i--) {
1925                                         phba->ModelDesc[j++] = vpd[index++];
1926                                         if (j == 255)
1927                                                 break;
1928                                 }
1929                                 phba->ModelDesc[j] = 0;
1930                                 continue;
1931                         }
1932                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1933                                 phba->vpd_flag |= VPD_MODEL_NAME;
1934                                 index += 2;
1935                                 i = vpd[index];
1936                                 index += 1;
1937                                 j = 0;
1938                                 Length -= (3+i);
1939                                 while(i--) {
1940                                         phba->ModelName[j++] = vpd[index++];
1941                                         if (j == 79)
1942                                                 break;
1943                                 }
1944                                 phba->ModelName[j] = 0;
1945                                 continue;
1946                         }
1947                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1948                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1949                                 index += 2;
1950                                 i = vpd[index];
1951                                 index += 1;
1952                                 j = 0;
1953                                 Length -= (3+i);
1954                                 while(i--) {
1955                                         phba->ProgramType[j++] = vpd[index++];
1956                                         if (j == 255)
1957                                                 break;
1958                                 }
1959                                 phba->ProgramType[j] = 0;
1960                                 continue;
1961                         }
1962                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1963                                 phba->vpd_flag |= VPD_PORT;
1964                                 index += 2;
1965                                 i = vpd[index];
1966                                 index += 1;
1967                                 j = 0;
1968                                 Length -= (3+i);
1969                                 while(i--) {
1970                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1971                                             (phba->sli4_hba.pport_name_sta ==
1972                                              LPFC_SLI4_PPNAME_GET)) {
1973                                                 j++;
1974                                                 index++;
1975                                         } else
1976                                                 phba->Port[j++] = vpd[index++];
1977                                         if (j == 19)
1978                                                 break;
1979                                 }
1980                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1981                                     (phba->sli4_hba.pport_name_sta ==
1982                                      LPFC_SLI4_PPNAME_NON))
1983                                         phba->Port[j] = 0;
1984                                 continue;
1985                         }
1986                         else {
1987                                 index += 2;
1988                                 i = vpd[index];
1989                                 index += 1;
1990                                 index += i;
1991                                 Length -= (3 + i);
1992                         }
1993                 }
1994                 finished = 0;
1995                 break;
1996                 case 0x78:
1997                         finished = 1;
1998                         break;
1999                 default:
2000                         index ++;
2001                         break;
2002                 }
2003         }
2004 
2005         return(1);
2006 }
2007 
2008 /**
2009  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2010  * @phba: pointer to lpfc hba data structure.
2011  * @mdp: pointer to the data structure to hold the derived model name.
2012  * @descp: pointer to the data structure to hold the derived description.
2013  *
2014  * This routine retrieves HBA's description based on its registered PCI device
2015  * ID. The @descp passed into this function points to an array of 256 chars. It
2016  * shall be returned with the model name, maximum speed, and the host bus type.
2017  * The @mdp passed into this function points to an array of 80 chars. When the
2018  * function returns, the @mdp will be filled with the model name.
2019  **/
2020 static void
2021 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2022 {
2023         lpfc_vpd_t *vp;
2024         uint16_t dev_id = phba->pcidev->device;
2025         int max_speed;
2026         int GE = 0;
2027         int oneConnect = 0; /* default is not a oneConnect */
2028         struct {
2029                 char *name;
2030                 char *bus;
2031                 char *function;
2032         } m = {"<Unknown>", "", ""};
2033 
2034         if (mdp && mdp[0] != '\0'
2035                 && descp && descp[0] != '\0')
2036                 return;
2037 
2038         if (phba->lmt & LMT_16Gb)
2039                 max_speed = 16;
2040         else if (phba->lmt & LMT_10Gb)
2041                 max_speed = 10;
2042         else if (phba->lmt & LMT_8Gb)
2043                 max_speed = 8;
2044         else if (phba->lmt & LMT_4Gb)
2045                 max_speed = 4;
2046         else if (phba->lmt & LMT_2Gb)
2047                 max_speed = 2;
2048         else if (phba->lmt & LMT_1Gb)
2049                 max_speed = 1;
2050         else
2051                 max_speed = 0;
2052 
2053         vp = &phba->vpd;
2054 
2055         switch (dev_id) {
2056         case PCI_DEVICE_ID_FIREFLY:
2057                 m = (typeof(m)){"LP6000", "PCI",
2058                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2059                 break;
2060         case PCI_DEVICE_ID_SUPERFLY:
2061                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2062                         m = (typeof(m)){"LP7000", "PCI", ""};
2063                 else
2064                         m = (typeof(m)){"LP7000E", "PCI", ""};
2065                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2066                 break;
2067         case PCI_DEVICE_ID_DRAGONFLY:
2068                 m = (typeof(m)){"LP8000", "PCI",
2069                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2070                 break;
2071         case PCI_DEVICE_ID_CENTAUR:
2072                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2073                         m = (typeof(m)){"LP9002", "PCI", ""};
2074                 else
2075                         m = (typeof(m)){"LP9000", "PCI", ""};
2076                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2077                 break;
2078         case PCI_DEVICE_ID_RFLY:
2079                 m = (typeof(m)){"LP952", "PCI",
2080                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2081                 break;
2082         case PCI_DEVICE_ID_PEGASUS:
2083                 m = (typeof(m)){"LP9802", "PCI-X",
2084                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2085                 break;
2086         case PCI_DEVICE_ID_THOR:
2087                 m = (typeof(m)){"LP10000", "PCI-X",
2088                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2089                 break;
2090         case PCI_DEVICE_ID_VIPER:
2091                 m = (typeof(m)){"LPX1000",  "PCI-X",
2092                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2093                 break;
2094         case PCI_DEVICE_ID_PFLY:
2095                 m = (typeof(m)){"LP982", "PCI-X",
2096                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2097                 break;
2098         case PCI_DEVICE_ID_TFLY:
2099                 m = (typeof(m)){"LP1050", "PCI-X",
2100                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2101                 break;
2102         case PCI_DEVICE_ID_HELIOS:
2103                 m = (typeof(m)){"LP11000", "PCI-X2",
2104                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2105                 break;
2106         case PCI_DEVICE_ID_HELIOS_SCSP:
2107                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2108                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2109                 break;
2110         case PCI_DEVICE_ID_HELIOS_DCSP:
2111                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2112                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2113                 break;
2114         case PCI_DEVICE_ID_NEPTUNE:
2115                 m = (typeof(m)){"LPe1000", "PCIe",
2116                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2117                 break;
2118         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2119                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2120                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2121                 break;
2122         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2123                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2124                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2125                 break;
2126         case PCI_DEVICE_ID_BMID:
2127                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2128                 break;
2129         case PCI_DEVICE_ID_BSMB:
2130                 m = (typeof(m)){"LP111", "PCI-X2",
2131                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2132                 break;
2133         case PCI_DEVICE_ID_ZEPHYR:
2134                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2135                 break;
2136         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2137                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2138                 break;
2139         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2140                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2141                 GE = 1;
2142                 break;
2143         case PCI_DEVICE_ID_ZMID:
2144                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2145                 break;
2146         case PCI_DEVICE_ID_ZSMB:
2147                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2148                 break;
2149         case PCI_DEVICE_ID_LP101:
2150                 m = (typeof(m)){"LP101", "PCI-X",
2151                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2152                 break;
2153         case PCI_DEVICE_ID_LP10000S:
2154                 m = (typeof(m)){"LP10000-S", "PCI",
2155                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2156                 break;
2157         case PCI_DEVICE_ID_LP11000S:
2158                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2159                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2160                 break;
2161         case PCI_DEVICE_ID_LPE11000S:
2162                 m = (typeof(m)){"LPe11000-S", "PCIe",
2163                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2164                 break;
2165         case PCI_DEVICE_ID_SAT:
2166                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2167                 break;
2168         case PCI_DEVICE_ID_SAT_MID:
2169                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2170                 break;
2171         case PCI_DEVICE_ID_SAT_SMB:
2172                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2173                 break;
2174         case PCI_DEVICE_ID_SAT_DCSP:
2175                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2176                 break;
2177         case PCI_DEVICE_ID_SAT_SCSP:
2178                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2179                 break;
2180         case PCI_DEVICE_ID_SAT_S:
2181                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2182                 break;
2183         case PCI_DEVICE_ID_HORNET:
2184                 m = (typeof(m)){"LP21000", "PCIe",
2185                                 "Obsolete, Unsupported FCoE Adapter"};
2186                 GE = 1;
2187                 break;
2188         case PCI_DEVICE_ID_PROTEUS_VF:
2189                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2190                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2191                 break;
2192         case PCI_DEVICE_ID_PROTEUS_PF:
2193                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2194                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2195                 break;
2196         case PCI_DEVICE_ID_PROTEUS_S:
2197                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2198                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2199                 break;
2200         case PCI_DEVICE_ID_TIGERSHARK:
2201                 oneConnect = 1;
2202                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2203                 break;
2204         case PCI_DEVICE_ID_TOMCAT:
2205                 oneConnect = 1;
2206                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2207                 break;
2208         case PCI_DEVICE_ID_FALCON:
2209                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2210                                 "EmulexSecure Fibre"};
2211                 break;
2212         case PCI_DEVICE_ID_BALIUS:
2213                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2214                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2215                 break;
2216         case PCI_DEVICE_ID_LANCER_FC:
2217                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2218                 break;
2219         case PCI_DEVICE_ID_LANCER_FC_VF:
2220                 m = (typeof(m)){"LPe16000", "PCIe",
2221                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2222                 break;
2223         case PCI_DEVICE_ID_LANCER_FCOE:
2224                 oneConnect = 1;
2225                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2226                 break;
2227         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2228                 oneConnect = 1;
2229                 m = (typeof(m)){"OCe15100", "PCIe",
2230                                 "Obsolete, Unsupported FCoE"};
2231                 break;
2232         case PCI_DEVICE_ID_SKYHAWK:
2233         case PCI_DEVICE_ID_SKYHAWK_VF:
2234                 oneConnect = 1;
2235                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2236                 break;
2237         default:
2238                 m = (typeof(m)){"Unknown", "", ""};
2239                 break;
2240         }
2241 
2242         if (mdp && mdp[0] == '\0')
2243                 snprintf(mdp, 79,"%s", m.name);
2244         /*
2245          * oneConnect hba requires special processing, they are all initiators
2246          * and we put the port number on the end
2247          */
2248         if (descp && descp[0] == '\0') {
2249                 if (oneConnect)
2250                         snprintf(descp, 255,
2251                                 "Emulex OneConnect %s, %s Initiator %s",
2252                                 m.name, m.function,
2253                                 phba->Port);
2254                 else if (max_speed == 0)
2255                         snprintf(descp, 255,
2256                                 "Emulex %s %s %s ",
2257                                 m.name, m.bus, m.function);
2258                 else
2259                         snprintf(descp, 255,
2260                                 "Emulex %s %d%s %s %s",
2261                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2262                                 m.bus, m.function);
2263         }
2264 }
2265 
2266 /**
2267  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2268  * @phba: pointer to lpfc hba data structure.
2269  * @pring: pointer to a IOCB ring.
2270  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2271  *
2272  * This routine posts a given number of IOCBs with the associated DMA buffer
2273  * descriptors specified by the cnt argument to the given IOCB ring.
2274  *
2275  * Return codes
2276  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2277  **/
2278 int
2279 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2280 {
2281         IOCB_t *icmd;
2282         struct lpfc_iocbq *iocb;
2283         struct lpfc_dmabuf *mp1, *mp2;
2284 
2285         cnt += pring->missbufcnt;
2286 
2287         /* While there are buffers to post */
2288         while (cnt > 0) {
2289                 /* Allocate buffer for  command iocb */
2290                 iocb = lpfc_sli_get_iocbq(phba);
2291                 if (iocb == NULL) {
2292                         pring->missbufcnt = cnt;
2293                         return cnt;
2294                 }
2295                 icmd = &iocb->iocb;
2296 
2297                 /* 2 buffers can be posted per command */
2298                 /* Allocate buffer to post */
2299                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2300                 if (mp1)
2301                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2302                 if (!mp1 || !mp1->virt) {
2303                         kfree(mp1);
2304                         lpfc_sli_release_iocbq(phba, iocb);
2305                         pring->missbufcnt = cnt;
2306                         return cnt;
2307                 }
2308 
2309                 INIT_LIST_HEAD(&mp1->list);
2310                 /* Allocate buffer to post */
2311                 if (cnt > 1) {
2312                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2313                         if (mp2)
2314                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2315                                                             &mp2->phys);
2316                         if (!mp2 || !mp2->virt) {
2317                                 kfree(mp2);
2318                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2319                                 kfree(mp1);
2320                                 lpfc_sli_release_iocbq(phba, iocb);
2321                                 pring->missbufcnt = cnt;
2322                                 return cnt;
2323                         }
2324 
2325                         INIT_LIST_HEAD(&mp2->list);
2326                 } else {
2327                         mp2 = NULL;
2328                 }
2329 
2330                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2331                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2332                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2333                 icmd->ulpBdeCount = 1;
2334                 cnt--;
2335                 if (mp2) {
2336                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2337                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2338                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2339                         cnt--;
2340                         icmd->ulpBdeCount = 2;
2341                 }
2342 
2343                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2344                 icmd->ulpLe = 1;
2345 
2346                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2347                     IOCB_ERROR) {
2348                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2349                         kfree(mp1);
2350                         cnt++;
2351                         if (mp2) {
2352                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2353                                 kfree(mp2);
2354                                 cnt++;
2355                         }
2356                         lpfc_sli_release_iocbq(phba, iocb);
2357                         pring->missbufcnt = cnt;
2358                         return cnt;
2359                 }
2360                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2361                 if (mp2)
2362                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2363         }
2364         pring->missbufcnt = 0;
2365         return 0;
2366 }
2367 
2368 /**
2369  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2370  * @phba: pointer to lpfc hba data structure.
2371  *
2372  * This routine posts initial receive IOCB buffers to the ELS ring. The
2373  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2374  * set to 64 IOCBs.
2375  *
2376  * Return codes
2377  *   0 - success (currently always success)
2378  **/
2379 static int
2380 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2381 {
2382         struct lpfc_sli *psli = &phba->sli;
2383 
2384         /* Ring 0, ELS / CT buffers */
2385         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2386         /* Ring 2 - FCP no buffers needed */
2387 
2388         return 0;
2389 }
2390 
2391 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2392 
2393 /**
2394  * lpfc_sha_init - Set up initial array of hash table entries
2395  * @HashResultPointer: pointer to an array as hash table.
2396  *
2397  * This routine sets up the initial values to the array of hash table entries
2398  * for the LC HBAs.
2399  **/
2400 static void
2401 lpfc_sha_init(uint32_t * HashResultPointer)
2402 {
2403         HashResultPointer[0] = 0x67452301;
2404         HashResultPointer[1] = 0xEFCDAB89;
2405         HashResultPointer[2] = 0x98BADCFE;
2406         HashResultPointer[3] = 0x10325476;
2407         HashResultPointer[4] = 0xC3D2E1F0;
2408 }
2409 
2410 /**
2411  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2412  * @HashResultPointer: pointer to an initial/result hash table.
2413  * @HashWorkingPointer: pointer to an working hash table.
2414  *
2415  * This routine iterates an initial hash table pointed by @HashResultPointer
2416  * with the values from the working hash table pointeed by @HashWorkingPointer.
2417  * The results are putting back to the initial hash table, returned through
2418  * the @HashResultPointer as the result hash table.
2419  **/
2420 static void
2421 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2422 {
2423         int t;
2424         uint32_t TEMP;
2425         uint32_t A, B, C, D, E;
2426         t = 16;
2427         do {
2428                 HashWorkingPointer[t] =
2429                     S(1,
2430                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2431                                                                      8] ^
2432                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2433         } while (++t <= 79);
2434         t = 0;
2435         A = HashResultPointer[0];
2436         B = HashResultPointer[1];
2437         C = HashResultPointer[2];
2438         D = HashResultPointer[3];
2439         E = HashResultPointer[4];
2440 
2441         do {
2442                 if (t < 20) {
2443                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2444                 } else if (t < 40) {
2445                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2446                 } else if (t < 60) {
2447                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2448                 } else {
2449                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2450                 }
2451                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2452                 E = D;
2453                 D = C;
2454                 C = S(30, B);
2455                 B = A;
2456                 A = TEMP;
2457         } while (++t <= 79);
2458 
2459         HashResultPointer[0] += A;
2460         HashResultPointer[1] += B;
2461         HashResultPointer[2] += C;
2462         HashResultPointer[3] += D;
2463         HashResultPointer[4] += E;
2464 
2465 }
2466 
2467 /**
2468  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2469  * @RandomChallenge: pointer to the entry of host challenge random number array.
2470  * @HashWorking: pointer to the entry of the working hash array.
2471  *
2472  * This routine calculates the working hash array referred by @HashWorking
2473  * from the challenge random numbers associated with the host, referred by
2474  * @RandomChallenge. The result is put into the entry of the working hash
2475  * array and returned by reference through @HashWorking.
2476  **/
2477 static void
2478 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2479 {
2480         *HashWorking = (*RandomChallenge ^ *HashWorking);
2481 }
2482 
2483 /**
2484  * lpfc_hba_init - Perform special handling for LC HBA initialization
2485  * @phba: pointer to lpfc hba data structure.
2486  * @hbainit: pointer to an array of unsigned 32-bit integers.
2487  *
2488  * This routine performs the special handling for LC HBA initialization.
2489  **/
2490 void
2491 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2492 {
2493         int t;
2494         uint32_t *HashWorking;
2495         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2496 
2497         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2498         if (!HashWorking)
2499                 return;
2500 
2501         HashWorking[0] = HashWorking[78] = *pwwnn++;
2502         HashWorking[1] = HashWorking[79] = *pwwnn;
2503 
2504         for (t = 0; t < 7; t++)
2505                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2506 
2507         lpfc_sha_init(hbainit);
2508         lpfc_sha_iterate(hbainit, HashWorking);
2509         kfree(HashWorking);
2510 }
2511 
2512 /**
2513  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2514  * @vport: pointer to a virtual N_Port data structure.
2515  *
2516  * This routine performs the necessary cleanups before deleting the @vport.
2517  * It invokes the discovery state machine to perform necessary state
2518  * transitions and to release the ndlps associated with the @vport. Note,
2519  * the physical port is treated as @vport 0.
2520  **/
2521 void
2522 lpfc_cleanup(struct lpfc_vport *vport)
2523 {
2524         struct lpfc_hba   *phba = vport->phba;
2525         struct lpfc_nodelist *ndlp, *next_ndlp;
2526         int i = 0;
2527 
2528         if (phba->link_state > LPFC_LINK_DOWN)
2529                 lpfc_port_link_failure(vport);
2530 
2531         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2532                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2533                         ndlp = lpfc_enable_node(vport, ndlp,
2534                                                 NLP_STE_UNUSED_NODE);
2535                         if (!ndlp)
2536                                 continue;
2537                         spin_lock_irq(&phba->ndlp_lock);
2538                         NLP_SET_FREE_REQ(ndlp);
2539                         spin_unlock_irq(&phba->ndlp_lock);
2540                         /* Trigger the release of the ndlp memory */
2541                         lpfc_nlp_put(ndlp);
2542                         continue;
2543                 }
2544                 spin_lock_irq(&phba->ndlp_lock);
2545                 if (NLP_CHK_FREE_REQ(ndlp)) {
2546                         /* The ndlp should not be in memory free mode already */
2547                         spin_unlock_irq(&phba->ndlp_lock);
2548                         continue;
2549                 } else
2550                         /* Indicate request for freeing ndlp memory */
2551                         NLP_SET_FREE_REQ(ndlp);
2552                 spin_unlock_irq(&phba->ndlp_lock);
2553 
2554                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2555                     ndlp->nlp_DID == Fabric_DID) {
2556                         /* Just free up ndlp with Fabric_DID for vports */
2557                         lpfc_nlp_put(ndlp);
2558                         continue;
2559                 }
2560 
2561                 /* take care of nodes in unused state before the state
2562                  * machine taking action.
2563                  */
2564                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2565                         lpfc_nlp_put(ndlp);
2566                         continue;
2567                 }
2568 
2569                 if (ndlp->nlp_type & NLP_FABRIC)
2570                         lpfc_disc_state_machine(vport, ndlp, NULL,
2571                                         NLP_EVT_DEVICE_RECOVERY);
2572 
2573                 lpfc_disc_state_machine(vport, ndlp, NULL,
2574                                              NLP_EVT_DEVICE_RM);
2575         }
2576 
2577         /* At this point, ALL ndlp's should be gone
2578          * because of the previous NLP_EVT_DEVICE_RM.
2579          * Lets wait for this to happen, if needed.
2580          */
2581         while (!list_empty(&vport->fc_nodes)) {
2582                 if (i++ > 3000) {
2583                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2584                                 "0233 Nodelist not empty\n");
2585                         list_for_each_entry_safe(ndlp, next_ndlp,
2586                                                 &vport->fc_nodes, nlp_listp) {
2587                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2588                                                 LOG_NODE,
2589                                                 "0282 did:x%x ndlp:x%p "
2590                                                 "usgmap:x%x refcnt:%d\n",
2591                                                 ndlp->nlp_DID, (void *)ndlp,
2592                                                 ndlp->nlp_usg_map,
2593                                                 atomic_read(
2594                                                         &ndlp->kref.refcount));
2595                         }
2596                         break;
2597                 }
2598 
2599                 /* Wait for any activity on ndlps to settle */
2600                 msleep(10);
2601         }
2602         lpfc_cleanup_vports_rrqs(vport, NULL);
2603 }
2604 
2605 /**
2606  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2607  * @vport: pointer to a virtual N_Port data structure.
2608  *
2609  * This routine stops all the timers associated with a @vport. This function
2610  * is invoked before disabling or deleting a @vport. Note that the physical
2611  * port is treated as @vport 0.
2612  **/
2613 void
2614 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2615 {
2616         del_timer_sync(&vport->els_tmofunc);
2617         del_timer_sync(&vport->fc_fdmitmo);
2618         del_timer_sync(&vport->delayed_disc_tmo);
2619         lpfc_can_disctmo(vport);
2620         return;
2621 }
2622 
2623 /**
2624  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2625  * @phba: pointer to lpfc hba data structure.
2626  *
2627  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2628  * caller of this routine should already hold the host lock.
2629  **/
2630 void
2631 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2632 {
2633         /* Clear pending FCF rediscovery wait flag */
2634         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2635 
2636         /* Now, try to stop the timer */
2637         del_timer(&phba->fcf.redisc_wait);
2638 }
2639 
2640 /**
2641  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2642  * @phba: pointer to lpfc hba data structure.
2643  *
2644  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2645  * checks whether the FCF rediscovery wait timer is pending with the host
2646  * lock held before proceeding with disabling the timer and clearing the
2647  * wait timer pendig flag.
2648  **/
2649 void
2650 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2651 {
2652         spin_lock_irq(&phba->hbalock);
2653         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2654                 /* FCF rediscovery timer already fired or stopped */
2655                 spin_unlock_irq(&phba->hbalock);
2656                 return;
2657         }
2658         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2659         /* Clear failover in progress flags */
2660         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2661         spin_unlock_irq(&phba->hbalock);
2662 }
2663 
2664 /**
2665  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2666  * @phba: pointer to lpfc hba data structure.
2667  *
2668  * This routine stops all the timers associated with a HBA. This function is
2669  * invoked before either putting a HBA offline or unloading the driver.
2670  **/
2671 void
2672 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2673 {
2674         lpfc_stop_vport_timers(phba->pport);
2675         del_timer_sync(&phba->sli.mbox_tmo);
2676         del_timer_sync(&phba->fabric_block_timer);
2677         del_timer_sync(&phba->eratt_poll);
2678         del_timer_sync(&phba->hb_tmofunc);
2679         if (phba->sli_rev == LPFC_SLI_REV4) {
2680                 del_timer_sync(&phba->rrq_tmr);
2681                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2682         }
2683         phba->hb_outstanding = 0;
2684 
2685         switch (phba->pci_dev_grp) {
2686         case LPFC_PCI_DEV_LP:
2687                 /* Stop any LightPulse device specific driver timers */
2688                 del_timer_sync(&phba->fcp_poll_timer);
2689                 break;
2690         case LPFC_PCI_DEV_OC:
2691                 /* Stop any OneConnect device sepcific driver timers */
2692                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2693                 break;
2694         default:
2695                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2696                                 "0297 Invalid device group (x%x)\n",
2697                                 phba->pci_dev_grp);
2698                 break;
2699         }
2700         return;
2701 }
2702 
2703 /**
2704  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2705  * @phba: pointer to lpfc hba data structure.
2706  *
2707  * This routine marks a HBA's management interface as blocked. Once the HBA's
2708  * management interface is marked as blocked, all the user space access to
2709  * the HBA, whether they are from sysfs interface or libdfc interface will
2710  * all be blocked. The HBA is set to block the management interface when the
2711  * driver prepares the HBA interface for online or offline.
2712  **/
2713 static void
2714 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2715 {
2716         unsigned long iflag;
2717         uint8_t actcmd = MBX_HEARTBEAT;
2718         unsigned long timeout;
2719 
2720         spin_lock_irqsave(&phba->hbalock, iflag);
2721         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2722         spin_unlock_irqrestore(&phba->hbalock, iflag);
2723         if (mbx_action == LPFC_MBX_NO_WAIT)
2724                 return;
2725         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2726         spin_lock_irqsave(&phba->hbalock, iflag);
2727         if (phba->sli.mbox_active) {
2728                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2729                 /* Determine how long we might wait for the active mailbox
2730                  * command to be gracefully completed by firmware.
2731                  */
2732                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2733                                 phba->sli.mbox_active) * 1000) + jiffies;
2734         }
2735         spin_unlock_irqrestore(&phba->hbalock, iflag);
2736 
2737         /* Wait for the outstnading mailbox command to complete */
2738         while (phba->sli.mbox_active) {
2739                 /* Check active mailbox complete status every 2ms */
2740                 msleep(2);
2741                 if (time_after(jiffies, timeout)) {
2742                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2743                                 "2813 Mgmt IO is Blocked %x "
2744                                 "- mbox cmd %x still active\n",
2745                                 phba->sli.sli_flag, actcmd);
2746                         break;
2747                 }
2748         }
2749 }
2750 
2751 /**
2752  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2753  * @phba: pointer to lpfc hba data structure.
2754  *
2755  * Allocate RPIs for all active remote nodes. This is needed whenever
2756  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2757  * is to fixup the temporary rpi assignments.
2758  **/
2759 void
2760 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2761 {
2762         struct lpfc_nodelist  *ndlp, *next_ndlp;
2763         struct lpfc_vport **vports;
2764         int i;
2765 
2766         if (phba->sli_rev != LPFC_SLI_REV4)
2767                 return;
2768 
2769         vports = lpfc_create_vport_work_array(phba);
2770         if (vports != NULL) {
2771                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2772                         if (vports[i]->load_flag & FC_UNLOADING)
2773                                 continue;
2774 
2775                         list_for_each_entry_safe(ndlp, next_ndlp,
2776                                                  &vports[i]->fc_nodes,
2777                                                  nlp_listp) {
2778                                 if (NLP_CHK_NODE_ACT(ndlp)) {
2779                                         ndlp->nlp_rpi =
2780                                                 lpfc_sli4_alloc_rpi(phba);
2781                                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
2782                                                          LOG_NODE,
2783                                                          "0009 rpi:%x DID:%x "
2784                                                          "flg:%x map:%x %p\n",
2785                                                          ndlp->nlp_rpi,
2786                                                          ndlp->nlp_DID,
2787                                                          ndlp->nlp_flag,
2788                                                          ndlp->nlp_usg_map,
2789                                                          ndlp);
2790                                 }
2791                         }
2792                 }
2793         }
2794         lpfc_destroy_vport_work_array(phba, vports);
2795 }
2796 
2797 /**
2798  * lpfc_online - Initialize and bring a HBA online
2799  * @phba: pointer to lpfc hba data structure.
2800  *
2801  * This routine initializes the HBA and brings a HBA online. During this
2802  * process, the management interface is blocked to prevent user space access
2803  * to the HBA interfering with the driver initialization.
2804  *
2805  * Return codes
2806  *   0 - successful
2807  *   1 - failed
2808  **/
2809 int
2810 lpfc_online(struct lpfc_hba *phba)
2811 {
2812         struct lpfc_vport *vport;
2813         struct lpfc_vport **vports;
2814         int i;
2815         bool vpis_cleared = false;
2816 
2817         if (!phba)
2818                 return 0;
2819         vport = phba->pport;
2820 
2821         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2822                 return 0;
2823 
2824         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2825                         "0458 Bring Adapter online\n");
2826 
2827         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2828 
2829         if (!lpfc_sli_queue_setup(phba)) {
2830                 lpfc_unblock_mgmt_io(phba);
2831                 return 1;
2832         }
2833 
2834         if (phba->sli_rev == LPFC_SLI_REV4) {
2835                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2836                         lpfc_unblock_mgmt_io(phba);
2837                         return 1;
2838                 }
2839                 spin_lock_irq(&phba->hbalock);
2840                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2841                         vpis_cleared = true;
2842                 spin_unlock_irq(&phba->hbalock);
2843         } else {
2844                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2845                         lpfc_unblock_mgmt_io(phba);
2846                         return 1;
2847                 }
2848         }
2849 
2850         vports = lpfc_create_vport_work_array(phba);
2851         if (vports != NULL)
2852                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2853                         struct Scsi_Host *shost;
2854                         shost = lpfc_shost_from_vport(vports[i]);
2855                         spin_lock_irq(shost->host_lock);
2856                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2857                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2858                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2859                         if (phba->sli_rev == LPFC_SLI_REV4) {
2860                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2861                                 if ((vpis_cleared) &&
2862                                     (vports[i]->port_type !=
2863                                         LPFC_PHYSICAL_PORT))
2864                                         vports[i]->vpi = 0;
2865                         }
2866                         spin_unlock_irq(shost->host_lock);
2867                 }
2868                 lpfc_destroy_vport_work_array(phba, vports);
2869 
2870         lpfc_unblock_mgmt_io(phba);
2871         return 0;
2872 }
2873 
2874 /**
2875  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2876  * @phba: pointer to lpfc hba data structure.
2877  *
2878  * This routine marks a HBA's management interface as not blocked. Once the
2879  * HBA's management interface is marked as not blocked, all the user space
2880  * access to the HBA, whether they are from sysfs interface or libdfc
2881  * interface will be allowed. The HBA is set to block the management interface
2882  * when the driver prepares the HBA interface for online or offline and then
2883  * set to unblock the management interface afterwards.
2884  **/
2885 void
2886 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2887 {
2888         unsigned long iflag;
2889 
2890         spin_lock_irqsave(&phba->hbalock, iflag);
2891         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2892         spin_unlock_irqrestore(&phba->hbalock, iflag);
2893 }
2894 
2895 /**
2896  * lpfc_offline_prep - Prepare a HBA to be brought offline
2897  * @phba: pointer to lpfc hba data structure.
2898  *
2899  * This routine is invoked to prepare a HBA to be brought offline. It performs
2900  * unregistration login to all the nodes on all vports and flushes the mailbox
2901  * queue to make it ready to be brought offline.
2902  **/
2903 void
2904 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2905 {
2906         struct lpfc_vport *vport = phba->pport;
2907         struct lpfc_nodelist  *ndlp, *next_ndlp;
2908         struct lpfc_vport **vports;
2909         struct Scsi_Host *shost;
2910         int i;
2911 
2912         if (vport->fc_flag & FC_OFFLINE_MODE)
2913                 return;
2914 
2915         lpfc_block_mgmt_io(phba, mbx_action);
2916 
2917         lpfc_linkdown(phba);
2918 
2919         /* Issue an unreg_login to all nodes on all vports */
2920         vports = lpfc_create_vport_work_array(phba);
2921         if (vports != NULL) {
2922                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2923                         if (vports[i]->load_flag & FC_UNLOADING)
2924                                 continue;
2925                         shost = lpfc_shost_from_vport(vports[i]);
2926                         spin_lock_irq(shost->host_lock);
2927                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2928                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2929                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2930                         spin_unlock_irq(shost->host_lock);
2931 
2932                         shost = lpfc_shost_from_vport(vports[i]);
2933                         list_for_each_entry_safe(ndlp, next_ndlp,
2934                                                  &vports[i]->fc_nodes,
2935                                                  nlp_listp) {
2936                                 if (!NLP_CHK_NODE_ACT(ndlp))
2937                                         continue;
2938                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2939                                         continue;
2940                                 if (ndlp->nlp_type & NLP_FABRIC) {
2941                                         lpfc_disc_state_machine(vports[i], ndlp,
2942                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2943                                         lpfc_disc_state_machine(vports[i], ndlp,
2944                                                 NULL, NLP_EVT_DEVICE_RM);
2945                                 }
2946                                 spin_lock_irq(shost->host_lock);
2947                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2948                                 spin_unlock_irq(shost->host_lock);
2949                                 /*
2950                                  * Whenever an SLI4 port goes offline, free the
2951                                  * RPI. Get a new RPI when the adapter port
2952                                  * comes back online.
2953                                  */
2954                                 if (phba->sli_rev == LPFC_SLI_REV4) {
2955                                         lpfc_printf_vlog(ndlp->vport,
2956                                                          KERN_INFO, LOG_NODE,
2957                                                          "0011 lpfc_offline: "
2958                                                          "ndlp:x%p did %x "
2959                                                          "usgmap:x%x rpi:%x\n",
2960                                                          ndlp, ndlp->nlp_DID,
2961                                                          ndlp->nlp_usg_map,
2962                                                          ndlp->nlp_rpi);
2963 
2964                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2965                                 }
2966                                 lpfc_unreg_rpi(vports[i], ndlp);
2967                         }
2968                 }
2969         }
2970         lpfc_destroy_vport_work_array(phba, vports);
2971 
2972         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2973 }
2974 
2975 /**
2976  * lpfc_offline - Bring a HBA offline
2977  * @phba: pointer to lpfc hba data structure.
2978  *
2979  * This routine actually brings a HBA offline. It stops all the timers
2980  * associated with the HBA, brings down the SLI layer, and eventually
2981  * marks the HBA as in offline state for the upper layer protocol.
2982  **/
2983 void
2984 lpfc_offline(struct lpfc_hba *phba)
2985 {
2986         struct Scsi_Host  *shost;
2987         struct lpfc_vport **vports;
2988         int i;
2989 
2990         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2991                 return;
2992 
2993         /* stop port and all timers associated with this hba */
2994         lpfc_stop_port(phba);
2995         vports = lpfc_create_vport_work_array(phba);
2996         if (vports != NULL)
2997                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2998                         lpfc_stop_vport_timers(vports[i]);
2999         lpfc_destroy_vport_work_array(phba, vports);
3000         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3001                         "0460 Bring Adapter offline\n");
3002         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3003            now.  */
3004         lpfc_sli_hba_down(phba);
3005         spin_lock_irq(&phba->hbalock);
3006         phba->work_ha = 0;
3007         spin_unlock_irq(&phba->hbalock);
3008         vports = lpfc_create_vport_work_array(phba);
3009         if (vports != NULL)
3010                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3011                         shost = lpfc_shost_from_vport(vports[i]);
3012                         spin_lock_irq(shost->host_lock);
3013                         vports[i]->work_port_events = 0;
3014                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3015                         spin_unlock_irq(shost->host_lock);
3016                 }
3017         lpfc_destroy_vport_work_array(phba, vports);
3018 }
3019 
3020 /**
3021  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3022  * @phba: pointer to lpfc hba data structure.
3023  *
3024  * This routine is to free all the SCSI buffers and IOCBs from the driver
3025  * list back to kernel. It is called from lpfc_pci_remove_one to free
3026  * the internal resources before the device is removed from the system.
3027  **/
3028 static void
3029 lpfc_scsi_free(struct lpfc_hba *phba)
3030 {
3031         struct lpfc_scsi_buf *sb, *sb_next;
3032         struct lpfc_iocbq *io, *io_next;
3033 
3034         spin_lock_irq(&phba->hbalock);
3035 
3036         /* Release all the lpfc_scsi_bufs maintained by this host. */
3037 
3038         spin_lock(&phba->scsi_buf_list_put_lock);
3039         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3040                                  list) {
3041                 list_del(&sb->list);
3042                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3043                               sb->dma_handle);
3044                 kfree(sb);
3045                 phba->total_scsi_bufs--;
3046         }
3047         spin_unlock(&phba->scsi_buf_list_put_lock);
3048 
3049         spin_lock(&phba->scsi_buf_list_get_lock);
3050         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3051                                  list) {
3052                 list_del(&sb->list);
3053                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3054                               sb->dma_handle);
3055                 kfree(sb);
3056                 phba->total_scsi_bufs--;
3057         }
3058         spin_unlock(&phba->scsi_buf_list_get_lock);
3059 
3060         /* Release all the lpfc_iocbq entries maintained by this host. */
3061         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3062                 list_del(&io->list);
3063                 kfree(io);
3064                 phba->total_iocbq_bufs--;
3065         }
3066 
3067         spin_unlock_irq(&phba->hbalock);
3068 }
3069 
3070 /**
3071  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3072  * @phba: pointer to lpfc hba data structure.
3073  *
3074  * This routine first calculates the sizes of the current els and allocated
3075  * scsi sgl lists, and then goes through all sgls to updates the physical
3076  * XRIs assigned due to port function reset. During port initialization, the
3077  * current els and allocated scsi sgl lists are 0s.
3078  *
3079  * Return codes
3080  *   0 - successful (for now, it always returns 0)
3081  **/
3082 int
3083 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3084 {
3085         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3086         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3087         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3088         LIST_HEAD(els_sgl_list);
3089         LIST_HEAD(scsi_sgl_list);
3090         int rc;
3091         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3092 
3093         /*
3094          * update on pci function's els xri-sgl list
3095          */
3096         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3097         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3098                 /* els xri-sgl expanded */
3099                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3100                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3101                                 "3157 ELS xri-sgl count increased from "
3102                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3103                                 els_xri_cnt);
3104                 /* allocate the additional els sgls */
3105                 for (i = 0; i < xri_cnt; i++) {
3106                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3107                                              GFP_KERNEL);
3108                         if (sglq_entry == NULL) {
3109                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3110                                                 "2562 Failure to allocate an "
3111                                                 "ELS sgl entry:%d\n", i);
3112                                 rc = -ENOMEM;
3113                                 goto out_free_mem;
3114                         }
3115                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3116                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3117                                                            &sglq_entry->phys);
3118                         if (sglq_entry->virt == NULL) {
3119                                 kfree(sglq_entry);
3120                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3121                                                 "2563 Failure to allocate an "
3122                                                 "ELS mbuf:%d\n", i);
3123                                 rc = -ENOMEM;
3124                                 goto out_free_mem;
3125                         }
3126                         sglq_entry->sgl = sglq_entry->virt;
3127                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3128                         sglq_entry->state = SGL_FREED;
3129                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3130                 }
3131                 spin_lock_irq(&phba->hbalock);
3132                 spin_lock(&pring->ring_lock);
3133                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3134                 spin_unlock(&pring->ring_lock);
3135                 spin_unlock_irq(&phba->hbalock);
3136         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3137                 /* els xri-sgl shrinked */
3138                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3139                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3140                                 "3158 ELS xri-sgl count decreased from "
3141                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3142                                 els_xri_cnt);
3143                 spin_lock_irq(&phba->hbalock);
3144                 spin_lock(&pring->ring_lock);
3145                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3146                 spin_unlock(&pring->ring_lock);
3147                 spin_unlock_irq(&phba->hbalock);
3148                 /* release extra els sgls from list */
3149                 for (i = 0; i < xri_cnt; i++) {
3150                         list_remove_head(&els_sgl_list,
3151                                          sglq_entry, struct lpfc_sglq, list);
3152                         if (sglq_entry) {
3153                                 lpfc_mbuf_free(phba, sglq_entry->virt,
3154                                                sglq_entry->phys);
3155                                 kfree(sglq_entry);
3156                         }
3157                 }
3158                 spin_lock_irq(&phba->hbalock);
3159                 spin_lock(&pring->ring_lock);
3160                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3161                 spin_unlock(&pring->ring_lock);
3162                 spin_unlock_irq(&phba->hbalock);
3163         } else
3164                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3165                                 "3163 ELS xri-sgl count unchanged: %d\n",
3166                                 els_xri_cnt);
3167         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3168 
3169         /* update xris to els sgls on the list */
3170         sglq_entry = NULL;
3171         sglq_entry_next = NULL;
3172         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3173                                  &phba->sli4_hba.lpfc_sgl_list, list) {
3174                 lxri = lpfc_sli4_next_xritag(phba);
3175                 if (lxri == NO_XRI) {
3176                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3177                                         "2400 Failed to allocate xri for "
3178                                         "ELS sgl\n");
3179                         rc = -ENOMEM;
3180                         goto out_free_mem;
3181                 }
3182                 sglq_entry->sli4_lxritag = lxri;
3183                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3184         }
3185 
3186         /*
3187          * update on pci function's allocated scsi xri-sgl list
3188          */
3189         phba->total_scsi_bufs = 0;
3190 
3191         /* maximum number of xris available for scsi buffers */
3192         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3193                                       els_xri_cnt;
3194 
3195         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3196                         "2401 Current allocated SCSI xri-sgl count:%d, "
3197                         "maximum  SCSI xri count:%d\n",
3198                         phba->sli4_hba.scsi_xri_cnt,
3199                         phba->sli4_hba.scsi_xri_max);
3200 
3201         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3202         spin_lock(&phba->scsi_buf_list_put_lock);
3203         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3204         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3205         spin_unlock(&phba->scsi_buf_list_put_lock);
3206         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3207 
3208         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3209                 /* max scsi xri shrinked below the allocated scsi buffers */
3210                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3211                                         phba->sli4_hba.scsi_xri_max;
3212                 /* release the extra allocated scsi buffers */
3213                 for (i = 0; i < scsi_xri_cnt; i++) {
3214                         list_remove_head(&scsi_sgl_list, psb,
3215                                          struct lpfc_scsi_buf, list);
3216                         if (psb) {
3217                                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
3218                                               psb->data, psb->dma_handle);
3219                                 kfree(psb);
3220                         }
3221                 }
3222                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3223                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3224                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3225         }
3226 
3227         /* update xris associated to remaining allocated scsi buffers */
3228         psb = NULL;
3229         psb_next = NULL;
3230         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3231                 lxri = lpfc_sli4_next_xritag(phba);
3232                 if (lxri == NO_XRI) {
3233                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3234                                         "2560 Failed to allocate xri for "
3235                                         "scsi buffer\n");
3236                         rc = -ENOMEM;
3237                         goto out_free_mem;
3238                 }
3239                 psb->cur_iocbq.sli4_lxritag = lxri;
3240                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3241         }
3242         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3243         spin_lock(&phba->scsi_buf_list_put_lock);
3244         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3245         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3246         spin_unlock(&phba->scsi_buf_list_put_lock);
3247         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3248 
3249         return 0;
3250 
3251 out_free_mem:
3252         lpfc_free_els_sgl_list(phba);
3253         lpfc_scsi_free(phba);
3254         return rc;
3255 }
3256 
3257 /**
3258  * lpfc_create_port - Create an FC port
3259  * @phba: pointer to lpfc hba data structure.
3260  * @instance: a unique integer ID to this FC port.
3261  * @dev: pointer to the device data structure.
3262  *
3263  * This routine creates a FC port for the upper layer protocol. The FC port
3264  * can be created on top of either a physical port or a virtual port provided
3265  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3266  * and associates the FC port created before adding the shost into the SCSI
3267  * layer.
3268  *
3269  * Return codes
3270  *   @vport - pointer to the virtual N_Port data structure.
3271  *   NULL - port create failed.
3272  **/
3273 struct lpfc_vport *
3274 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3275 {
3276         struct lpfc_vport *vport;
3277         struct Scsi_Host  *shost;
3278         int error = 0;
3279 
3280         if (dev != &phba->pcidev->dev) {
3281                 shost = scsi_host_alloc(&lpfc_vport_template,
3282                                         sizeof(struct lpfc_vport));
3283         } else {
3284                 if (phba->sli_rev == LPFC_SLI_REV4)
3285                         shost = scsi_host_alloc(&lpfc_template,
3286                                         sizeof(struct lpfc_vport));
3287                 else
3288                         shost = scsi_host_alloc(&lpfc_template_s3,
3289                                         sizeof(struct lpfc_vport));
3290         }
3291         if (!shost)
3292                 goto out;
3293 
3294         vport = (struct lpfc_vport *) shost->hostdata;
3295         vport->phba = phba;
3296         vport->load_flag |= FC_LOADING;
3297         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3298         vport->fc_rscn_flush = 0;
3299 
3300         lpfc_get_vport_cfgparam(vport);
3301         shost->unique_id = instance;
3302         shost->max_id = LPFC_MAX_TARGET;
3303         shost->max_lun = vport->cfg_max_luns;
3304         shost->this_id = -1;
3305         shost->max_cmd_len = 16;
3306         if (phba->sli_rev == LPFC_SLI_REV4) {
3307                 shost->dma_boundary =
3308                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3309                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3310         }
3311 
3312         /*
3313          * Set initial can_queue value since 0 is no longer supported and
3314          * scsi_add_host will fail. This will be adjusted later based on the
3315          * max xri value determined in hba setup.
3316          */
3317         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3318         if (dev != &phba->pcidev->dev) {
3319                 shost->transportt = lpfc_vport_transport_template;
3320                 vport->port_type = LPFC_NPIV_PORT;
3321         } else {
3322                 shost->transportt = lpfc_transport_template;
3323                 vport->port_type = LPFC_PHYSICAL_PORT;
3324         }
3325 
3326         /* Initialize all internally managed lists. */
3327         INIT_LIST_HEAD(&vport->fc_nodes);
3328         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3329         spin_lock_init(&vport->work_port_lock);
3330 
3331         init_timer(&vport->fc_disctmo);
3332         vport->fc_disctmo.function = lpfc_disc_timeout;
3333         vport->fc_disctmo.data = (unsigned long)vport;
3334 
3335         init_timer(&vport->fc_fdmitmo);
3336         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3337         vport->fc_fdmitmo.data = (unsigned long)vport;
3338 
3339         init_timer(&vport->els_tmofunc);
3340         vport->els_tmofunc.function = lpfc_els_timeout;
3341         vport->els_tmofunc.data = (unsigned long)vport;
3342 
3343         init_timer(&vport->delayed_disc_tmo);
3344         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3345         vport->delayed_disc_tmo.data = (unsigned long)vport;
3346 
3347         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3348         if (error)
3349                 goto out_put_shost;
3350 
3351         spin_lock_irq(&phba->hbalock);
3352         list_add_tail(&vport->listentry, &phba->port_list);
3353         spin_unlock_irq(&phba->hbalock);
3354         return vport;
3355 
3356 out_put_shost:
3357         scsi_host_put(shost);
3358 out:
3359         return NULL;
3360 }
3361 
3362 /**
3363  * destroy_port -  destroy an FC port
3364  * @vport: pointer to an lpfc virtual N_Port data structure.
3365  *
3366  * This routine destroys a FC port from the upper layer protocol. All the
3367  * resources associated with the port are released.
3368  **/
3369 void
3370 destroy_port(struct lpfc_vport *vport)
3371 {
3372         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3373         struct lpfc_hba  *phba = vport->phba;
3374 
3375         lpfc_debugfs_terminate(vport);
3376         fc_remove_host(shost);
3377         scsi_remove_host(shost);
3378 
3379         spin_lock_irq(&phba->hbalock);
3380         list_del_init(&vport->listentry);
3381         spin_unlock_irq(&phba->hbalock);
3382 
3383         lpfc_cleanup(vport);
3384         return;
3385 }
3386 
3387 /**
3388  * lpfc_get_instance - Get a unique integer ID
3389  *
3390  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3391  * uses the kernel idr facility to perform the task.
3392  *
3393  * Return codes:
3394  *   instance - a unique integer ID allocated as the new instance.
3395  *   -1 - lpfc get instance failed.
3396  **/
3397 int
3398 lpfc_get_instance(void)
3399 {
3400         int ret;
3401 
3402         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3403         return ret < 0 ? -1 : ret;
3404 }
3405 
3406 /**
3407  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3408  * @shost: pointer to SCSI host data structure.
3409  * @time: elapsed time of the scan in jiffies.
3410  *
3411  * This routine is called by the SCSI layer with a SCSI host to determine
3412  * whether the scan host is finished.
3413  *
3414  * Note: there is no scan_start function as adapter initialization will have
3415  * asynchronously kicked off the link initialization.
3416  *
3417  * Return codes
3418  *   0 - SCSI host scan is not over yet.
3419  *   1 - SCSI host scan is over.
3420  **/
3421 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3422 {
3423         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3424         struct lpfc_hba   *phba = vport->phba;
3425         int stat = 0;
3426 
3427         spin_lock_irq(shost->host_lock);
3428 
3429         if (vport->load_flag & FC_UNLOADING) {
3430                 stat = 1;
3431                 goto finished;
3432         }
3433         if (time >= msecs_to_jiffies(30 * 1000)) {
3434                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3435                                 "0461 Scanning longer than 30 "
3436                                 "seconds.  Continuing initialization\n");
3437                 stat = 1;
3438                 goto finished;
3439         }
3440         if (time >= msecs_to_jiffies(15 * 1000) &&
3441             phba->link_state <= LPFC_LINK_DOWN) {
3442                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3443                                 "0465 Link down longer than 15 "
3444                                 "seconds.  Continuing initialization\n");
3445                 stat = 1;
3446                 goto finished;
3447         }
3448 
3449         if (vport->port_state != LPFC_VPORT_READY)
3450                 goto finished;
3451         if (vport->num_disc_nodes || vport->fc_prli_sent)
3452                 goto finished;
3453         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3454                 goto finished;
3455         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3456                 goto finished;
3457 
3458         stat = 1;
3459 
3460 finished:
3461         spin_unlock_irq(shost->host_lock);
3462         return stat;
3463 }
3464 
3465 /**
3466  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3467  * @shost: pointer to SCSI host data structure.
3468  *
3469  * This routine initializes a given SCSI host attributes on a FC port. The
3470  * SCSI host can be either on top of a physical port or a virtual port.
3471  **/
3472 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3473 {
3474         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3475         struct lpfc_hba   *phba = vport->phba;
3476         /*
3477          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3478          */
3479 
3480         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3481         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3482         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3483 
3484         memset(fc_host_supported_fc4s(shost), 0,
3485                sizeof(fc_host_supported_fc4s(shost)));
3486         fc_host_supported_fc4s(shost)[2] = 1;
3487         fc_host_supported_fc4s(shost)[7] = 1;
3488 
3489         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3490                                  sizeof fc_host_symbolic_name(shost));
3491 
3492         fc_host_supported_speeds(shost) = 0;
3493         if (phba->lmt & LMT_16Gb)
3494                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3495         if (phba->lmt & LMT_10Gb)
3496                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3497         if (phba->lmt & LMT_8Gb)
3498                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3499         if (phba->lmt & LMT_4Gb)
3500                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3501         if (phba->lmt & LMT_2Gb)
3502                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3503         if (phba->lmt & LMT_1Gb)
3504                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3505 
3506         fc_host_maxframe_size(shost) =
3507                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3508                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3509 
3510         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3511 
3512         /* This value is also unchanging */
3513         memset(fc_host_active_fc4s(shost), 0,
3514                sizeof(fc_host_active_fc4s(shost)));
3515         fc_host_active_fc4s(shost)[2] = 1;
3516         fc_host_active_fc4s(shost)[7] = 1;
3517 
3518         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3519         spin_lock_irq(shost->host_lock);
3520         vport->load_flag &= ~FC_LOADING;
3521         spin_unlock_irq(shost->host_lock);
3522 }
3523 
3524 /**
3525  * lpfc_stop_port_s3 - Stop SLI3 device port
3526  * @phba: pointer to lpfc hba data structure.
3527  *
3528  * This routine is invoked to stop an SLI3 device port, it stops the device
3529  * from generating interrupts and stops the device driver's timers for the
3530  * device.
3531  **/
3532 static void
3533 lpfc_stop_port_s3(struct lpfc_hba *phba)
3534 {
3535         /* Clear all interrupt enable conditions */
3536         writel(0, phba->HCregaddr);
3537         readl(phba->HCregaddr); /* flush */
3538         /* Clear all pending interrupts */
3539         writel(0xffffffff, phba->HAregaddr);
3540         readl(phba->HAregaddr); /* flush */
3541 
3542         /* Reset some HBA SLI setup states */
3543         lpfc_stop_hba_timers(phba);
3544         phba->pport->work_port_events = 0;
3545 }
3546 
3547 /**
3548  * lpfc_stop_port_s4 - Stop SLI4 device port
3549  * @phba: pointer to lpfc hba data structure.
3550  *
3551  * This routine is invoked to stop an SLI4 device port, it stops the device
3552  * from generating interrupts and stops the device driver's timers for the
3553  * device.
3554  **/
3555 static void
3556 lpfc_stop_port_s4(struct lpfc_hba *phba)
3557 {
3558         /* Reset some HBA SLI4 setup states */
3559         lpfc_stop_hba_timers(phba);
3560         phba->pport->work_port_events = 0;
3561         phba->sli4_hba.intr_enable = 0;
3562 }
3563 
3564 /**
3565  * lpfc_stop_port - Wrapper function for stopping hba port
3566  * @phba: Pointer to HBA context object.
3567  *
3568  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3569  * the API jump table function pointer from the lpfc_hba struct.
3570  **/
3571 void
3572 lpfc_stop_port(struct lpfc_hba *phba)
3573 {
3574         phba->lpfc_stop_port(phba);
3575 }
3576 
3577 /**
3578  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3579  * @phba: Pointer to hba for which this call is being executed.
3580  *
3581  * This routine starts the timer waiting for the FCF rediscovery to complete.
3582  **/
3583 void
3584 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3585 {
3586         unsigned long fcf_redisc_wait_tmo =
3587                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3588         /* Start fcf rediscovery wait period timer */
3589         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3590         spin_lock_irq(&phba->hbalock);
3591         /* Allow action to new fcf asynchronous event */
3592         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3593         /* Mark the FCF rediscovery pending state */
3594         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3595         spin_unlock_irq(&phba->hbalock);
3596 }
3597 
3598 /**
3599  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3600  * @ptr: Map to lpfc_hba data structure pointer.
3601  *
3602  * This routine is invoked when waiting for FCF table rediscover has been
3603  * timed out. If new FCF record(s) has (have) been discovered during the
3604  * wait period, a new FCF event shall be added to the FCOE async event
3605  * list, and then worker thread shall be waked up for processing from the
3606  * worker thread context.
3607  **/
3608 static void
3609 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3610 {
3611         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3612 
3613         /* Don't send FCF rediscovery event if timer cancelled */
3614         spin_lock_irq(&phba->hbalock);
3615         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3616                 spin_unlock_irq(&phba->hbalock);
3617                 return;
3618         }
3619         /* Clear FCF rediscovery timer pending flag */
3620         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3621         /* FCF rediscovery event to worker thread */
3622         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3623         spin_unlock_irq(&phba->hbalock);
3624         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3625                         "2776 FCF rediscover quiescent timer expired\n");
3626         /* wake up worker thread */
3627         lpfc_worker_wake_up(phba);
3628 }
3629 
3630 /**
3631  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3632  * @phba: pointer to lpfc hba data structure.
3633  * @acqe_link: pointer to the async link completion queue entry.
3634  *
3635  * This routine is to parse the SLI4 link-attention link fault code and
3636  * translate it into the base driver's read link attention mailbox command
3637  * status.
3638  *
3639  * Return: Link-attention status in terms of base driver's coding.
3640  **/
3641 static uint16_t
3642 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3643                            struct lpfc_acqe_link *acqe_link)
3644 {
3645         uint16_t latt_fault;
3646 
3647         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3648         case LPFC_ASYNC_LINK_FAULT_NONE:
3649         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3650         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3651                 latt_fault = 0;
3652                 break;
3653         default:
3654                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3655                                 "0398 Invalid link fault code: x%x\n",
3656                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3657                 latt_fault = MBXERR_ERROR;
3658                 break;
3659         }
3660         return latt_fault;
3661 }
3662 
3663 /**
3664  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3665  * @phba: pointer to lpfc hba data structure.
3666  * @acqe_link: pointer to the async link completion queue entry.
3667  *
3668  * This routine is to parse the SLI4 link attention type and translate it
3669  * into the base driver's link attention type coding.
3670  *
3671  * Return: Link attention type in terms of base driver's coding.
3672  **/
3673 static uint8_t
3674 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3675                           struct lpfc_acqe_link *acqe_link)
3676 {
3677         uint8_t att_type;
3678 
3679         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3680         case LPFC_ASYNC_LINK_STATUS_DOWN:
3681         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3682                 att_type = LPFC_ATT_LINK_DOWN;
3683                 break;
3684         case LPFC_ASYNC_LINK_STATUS_UP:
3685                 /* Ignore physical link up events - wait for logical link up */
3686                 att_type = LPFC_ATT_RESERVED;
3687                 break;
3688         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3689                 att_type = LPFC_ATT_LINK_UP;
3690                 break;
3691         default:
3692                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3693                                 "0399 Invalid link attention type: x%x\n",
3694                                 bf_get(lpfc_acqe_link_status, acqe_link));
3695                 att_type = LPFC_ATT_RESERVED;
3696                 break;
3697         }
3698         return att_type;
3699 }
3700 
3701 /**
3702  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3703  * @phba: pointer to lpfc hba data structure.
3704  * @acqe_link: pointer to the async link completion queue entry.
3705  *
3706  * This routine is to parse the SLI4 link-attention link speed and translate
3707  * it into the base driver's link-attention link speed coding.
3708  *
3709  * Return: Link-attention link speed in terms of base driver's coding.
3710  **/
3711 static uint8_t
3712 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3713                                 struct lpfc_acqe_link *acqe_link)
3714 {
3715         uint8_t link_speed;
3716 
3717         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3718         case LPFC_ASYNC_LINK_SPEED_ZERO:
3719         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3720         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3721                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3722                 break;
3723         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3724                 link_speed = LPFC_LINK_SPEED_1GHZ;
3725                 break;
3726         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3727                 link_speed = LPFC_LINK_SPEED_10GHZ;
3728                 break;
3729         case LPFC_ASYNC_LINK_SPEED_20GBPS:
3730         case LPFC_ASYNC_LINK_SPEED_25GBPS:
3731         case LPFC_ASYNC_LINK_SPEED_40GBPS:
3732                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3733                 break;
3734         default:
3735                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3736                                 "0483 Invalid link-attention link speed: x%x\n",
3737                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3738                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3739                 break;
3740         }
3741         return link_speed;
3742 }
3743 
3744 /**
3745  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3746  * @phba: pointer to lpfc hba data structure.
3747  *
3748  * This routine is to get an SLI3 FC port's link speed in Mbps.
3749  *
3750  * Return: link speed in terms of Mbps.
3751  **/
3752 uint32_t
3753 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3754 {
3755         uint32_t link_speed;
3756 
3757         if (!lpfc_is_link_up(phba))
3758                 return 0;
3759 
3760         switch (phba->fc_linkspeed) {
3761         case LPFC_LINK_SPEED_1GHZ:
3762                 link_speed = 1000;
3763                 break;
3764         case LPFC_LINK_SPEED_2GHZ:
3765                 link_speed = 2000;
3766                 break;
3767         case LPFC_LINK_SPEED_4GHZ:
3768                 link_speed = 4000;
3769                 break;
3770         case LPFC_LINK_SPEED_8GHZ:
3771                 link_speed = 8000;
3772                 break;
3773         case LPFC_LINK_SPEED_10GHZ:
3774                 link_speed = 10000;
3775                 break;
3776         case LPFC_LINK_SPEED_16GHZ:
3777                 link_speed = 16000;
3778                 break;
3779         default:
3780                 link_speed = 0;
3781         }
3782         return link_speed;
3783 }
3784 
3785 /**
3786  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3787  * @phba: pointer to lpfc hba data structure.
3788  * @evt_code: asynchronous event code.
3789  * @speed_code: asynchronous event link speed code.
3790  *
3791  * This routine is to parse the giving SLI4 async event link speed code into
3792  * value of Mbps for the link speed.
3793  *
3794  * Return: link speed in terms of Mbps.
3795  **/
3796 static uint32_t
3797 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3798                            uint8_t speed_code)
3799 {
3800         uint32_t port_speed;
3801 
3802         switch (evt_code) {
3803         case LPFC_TRAILER_CODE_LINK:
3804                 switch (speed_code) {
3805                 case LPFC_ASYNC_LINK_SPEED_ZERO:
3806                         port_speed = 0;
3807                         break;
3808                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3809                         port_speed = 10;
3810                         break;
3811                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3812                         port_speed = 100;
3813                         break;
3814                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3815                         port_speed = 1000;
3816                         break;
3817                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3818                         port_speed = 10000;
3819                         break;
3820                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
3821                         port_speed = 20000;
3822                         break;
3823                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
3824                         port_speed = 25000;
3825                         break;
3826                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
3827                         port_speed = 40000;
3828                         break;
3829                 default:
3830                         port_speed = 0;
3831                 }
3832                 break;
3833         case LPFC_TRAILER_CODE_FC:
3834                 switch (speed_code) {
3835                 case LPFC_FC_LA_SPEED_UNKNOWN:
3836                         port_speed = 0;
3837                         break;
3838                 case LPFC_FC_LA_SPEED_1G:
3839                         port_speed = 1000;
3840                         break;
3841                 case LPFC_FC_LA_SPEED_2G:
3842                         port_speed = 2000;
3843                         break;
3844                 case LPFC_FC_LA_SPEED_4G:
3845                         port_speed = 4000;
3846                         break;
3847                 case LPFC_FC_LA_SPEED_8G:
3848                         port_speed = 8000;
3849                         break;
3850                 case LPFC_FC_LA_SPEED_10G:
3851                         port_speed = 10000;
3852                         break;
3853                 case LPFC_FC_LA_SPEED_16G:
3854                         port_speed = 16000;
3855                         break;
3856                 default:
3857                         port_speed = 0;
3858                 }
3859                 break;
3860         default:
3861                 port_speed = 0;
3862         }
3863         return port_speed;
3864 }
3865 
3866 /**
3867  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3868  * @phba: pointer to lpfc hba data structure.
3869  * @acqe_link: pointer to the async link completion queue entry.
3870  *
3871  * This routine is to handle the SLI4 asynchronous FCoE link event.
3872  **/
3873 static void
3874 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3875                          struct lpfc_acqe_link *acqe_link)
3876 {
3877         struct lpfc_dmabuf *mp;
3878         LPFC_MBOXQ_t *pmb;
3879         MAILBOX_t *mb;
3880         struct lpfc_mbx_read_top *la;
3881         uint8_t att_type;
3882         int rc;
3883 
3884         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3885         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3886                 return;
3887         phba->fcoe_eventtag = acqe_link->event_tag;
3888         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3889         if (!pmb) {
3890                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3891                                 "0395 The mboxq allocation failed\n");
3892                 return;
3893         }
3894         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3895         if (!mp) {
3896                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3897                                 "0396 The lpfc_dmabuf allocation failed\n");
3898                 goto out_free_pmb;
3899         }
3900         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3901         if (!mp->virt) {
3902                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3903                                 "0397 The mbuf allocation failed\n");
3904                 goto out_free_dmabuf;
3905         }
3906 
3907         /* Cleanup any outstanding ELS commands */
3908         lpfc_els_flush_all_cmd(phba);
3909 
3910         /* Block ELS IOCBs until we have done process link event */
3911         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3912 
3913         /* Update link event statistics */
3914         phba->sli.slistat.link_event++;
3915 
3916         /* Create lpfc_handle_latt mailbox command from link ACQE */
3917         lpfc_read_topology(phba, pmb, mp);
3918         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3919         pmb->vport = phba->pport;
3920 
3921         /* Keep the link status for extra SLI4 state machine reference */
3922         phba->sli4_hba.link_state.speed =
3923                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3924                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3925         phba->sli4_hba.link_state.duplex =
3926                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3927         phba->sli4_hba.link_state.status =
3928                                 bf_get(lpfc_acqe_link_status, acqe_link);
3929         phba->sli4_hba.link_state.type =
3930                                 bf_get(lpfc_acqe_link_type, acqe_link);
3931         phba->sli4_hba.link_state.number =
3932                                 bf_get(lpfc_acqe_link_number, acqe_link);
3933         phba->sli4_hba.link_state.fault =
3934                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3935         phba->sli4_hba.link_state.logical_speed =
3936                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3937 
3938         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3939                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3940                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3941                         "Logical speed:%dMbps Fault:%d\n",
3942                         phba->sli4_hba.link_state.speed,
3943                         phba->sli4_hba.link_state.topology,
3944                         phba->sli4_hba.link_state.status,
3945                         phba->sli4_hba.link_state.type,
3946                         phba->sli4_hba.link_state.number,
3947                         phba->sli4_hba.link_state.logical_speed,
3948                         phba->sli4_hba.link_state.fault);
3949         /*
3950          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3951          * topology info. Note: Optional for non FC-AL ports.
3952          */
3953         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3954                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3955                 if (rc == MBX_NOT_FINISHED)
3956                         goto out_free_dmabuf;
3957                 return;
3958         }
3959         /*
3960          * For FCoE Mode: fill in all the topology information we need and call
3961          * the READ_TOPOLOGY completion routine to continue without actually
3962          * sending the READ_TOPOLOGY mailbox command to the port.
3963          */
3964         /* Parse and translate status field */
3965         mb = &pmb->u.mb;
3966         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3967 
3968         /* Parse and translate link attention fields */
3969         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3970         la->eventTag = acqe_link->event_tag;
3971         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3972         bf_set(lpfc_mbx_read_top_link_spd, la,
3973                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3974 
3975         /* Fake the the following irrelvant fields */
3976         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3977         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3978         bf_set(lpfc_mbx_read_top_il, la, 0);
3979         bf_set(lpfc_mbx_read_top_pb, la, 0);
3980         bf_set(lpfc_mbx_read_top_fa, la, 0);
3981         bf_set(lpfc_mbx_read_top_mm, la, 0);
3982 
3983         /* Invoke the lpfc_handle_latt mailbox command callback function */
3984         lpfc_mbx_cmpl_read_topology(phba, pmb);
3985 
3986         return;
3987 
3988 out_free_dmabuf:
3989         kfree(mp);
3990 out_free_pmb:
3991         mempool_free(pmb, phba->mbox_mem_pool);
3992 }
3993 
3994 /**
3995  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3996  * @phba: pointer to lpfc hba data structure.
3997  * @acqe_fc: pointer to the async fc completion queue entry.
3998  *
3999  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4000  * that the event was received and then issue a read_topology mailbox command so
4001  * that the rest of the driver will treat it the same as SLI3.
4002  **/
4003 static void
4004 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4005 {
4006         struct lpfc_dmabuf *mp;
4007         LPFC_MBOXQ_t *pmb;
4008         int rc;
4009 
4010         if (bf_get(lpfc_trailer_type, acqe_fc) !=
4011             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4012                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4013                                 "2895 Non FC link Event detected.(%d)\n",
4014                                 bf_get(lpfc_trailer_type, acqe_fc));
4015                 return;
4016         }
4017         /* Keep the link status for extra SLI4 state machine reference */
4018         phba->sli4_hba.link_state.speed =
4019                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4020                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4021         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4022         phba->sli4_hba.link_state.topology =
4023                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4024         phba->sli4_hba.link_state.status =
4025                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4026         phba->sli4_hba.link_state.type =
4027                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4028         phba->sli4_hba.link_state.number =
4029                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4030         phba->sli4_hba.link_state.fault =
4031                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4032         phba->sli4_hba.link_state.logical_speed =
4033                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4034         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4035                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4036                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4037                         "%dMbps Fault:%d\n",
4038                         phba->sli4_hba.link_state.speed,
4039                         phba->sli4_hba.link_state.topology,
4040                         phba->sli4_hba.link_state.status,
4041                         phba->sli4_hba.link_state.type,
4042                         phba->sli4_hba.link_state.number,
4043                         phba->sli4_hba.link_state.logical_speed,
4044                         phba->sli4_hba.link_state.fault);
4045         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4046         if (!pmb) {
4047                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4048                                 "2897 The mboxq allocation failed\n");
4049                 return;
4050         }
4051         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4052         if (!mp) {
4053                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4054                                 "2898 The lpfc_dmabuf allocation failed\n");
4055                 goto out_free_pmb;
4056         }
4057         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4058         if (!mp->virt) {
4059                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4060                                 "2899 The mbuf allocation failed\n");
4061                 goto out_free_dmabuf;
4062         }
4063 
4064         /* Cleanup any outstanding ELS commands */
4065         lpfc_els_flush_all_cmd(phba);
4066 
4067         /* Block ELS IOCBs until we have done process link event */
4068         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4069 
4070         /* Update link event statistics */
4071         phba->sli.slistat.link_event++;
4072 
4073         /* Create lpfc_handle_latt mailbox command from link ACQE */
4074         lpfc_read_topology(phba, pmb, mp);
4075         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4076         pmb->vport = phba->pport;
4077 
4078         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4079         if (rc == MBX_NOT_FINISHED)
4080                 goto out_free_dmabuf;
4081         return;
4082 
4083 out_free_dmabuf:
4084         kfree(mp);
4085 out_free_pmb:
4086         mempool_free(pmb, phba->mbox_mem_pool);
4087 }
4088 
4089 /**
4090  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4091  * @phba: pointer to lpfc hba data structure.
4092  * @acqe_fc: pointer to the async SLI completion queue entry.
4093  *
4094  * This routine is to handle the SLI4 asynchronous SLI events.
4095  **/
4096 static void
4097 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4098 {
4099         char port_name;
4100         char message[128];
4101         uint8_t status;
4102         uint8_t evt_type;
4103         struct temp_event temp_event_data;
4104         struct lpfc_acqe_misconfigured_event *misconfigured;
4105         struct Scsi_Host  *shost;
4106 
4107         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4108 
4109         /* Special case Lancer */
4110         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
4111                  LPFC_SLI_INTF_IF_TYPE_2) {
4112                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4113                                 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4114                                 "x%08x SLI Event Type:%d\n",
4115                                 acqe_sli->event_data1, acqe_sli->event_data2,
4116                                 evt_type);
4117                 return;
4118         }
4119 
4120         port_name = phba->Port[0];
4121         if (port_name == 0x00)
4122                 port_name = '?'; /* get port name is empty */
4123 
4124         switch (evt_type) {
4125         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4126                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4127                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4128                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4129 
4130                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4131                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4132                                 acqe_sli->event_data1, port_name);
4133 
4134                 shost = lpfc_shost_from_vport(phba->pport);
4135                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4136                                           sizeof(temp_event_data),
4137                                           (char *)&temp_event_data,
4138                                           SCSI_NL_VID_TYPE_PCI
4139                                           | PCI_VENDOR_ID_EMULEX);
4140                 break;
4141         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4142                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4143                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4144                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4145 
4146                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4147                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4148                                 acqe_sli->event_data1, port_name);
4149 
4150                 shost = lpfc_shost_from_vport(phba->pport);
4151                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4152                                           sizeof(temp_event_data),
4153                                           (char *)&temp_event_data,
4154                                           SCSI_NL_VID_TYPE_PCI
4155                                           | PCI_VENDOR_ID_EMULEX);
4156                 break;
4157         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4158                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4159                                         &acqe_sli->event_data1;
4160 
4161                 /* fetch the status for this port */
4162                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4163                 case LPFC_LINK_NUMBER_0:
4164                         status = bf_get(lpfc_sli_misconfigured_port0,
4165                                         &misconfigured->theEvent);
4166                         break;
4167                 case LPFC_LINK_NUMBER_1:
4168                         status = bf_get(lpfc_sli_misconfigured_port1,
4169                                         &misconfigured->theEvent);
4170                         break;
4171                 case LPFC_LINK_NUMBER_2:
4172                         status = bf_get(lpfc_sli_misconfigured_port2,
4173                                         &misconfigured->theEvent);
4174                         break;
4175                 case LPFC_LINK_NUMBER_3:
4176                         status = bf_get(lpfc_sli_misconfigured_port3,
4177                                         &misconfigured->theEvent);
4178                         break;
4179                 default:
4180                         status = ~LPFC_SLI_EVENT_STATUS_VALID;
4181                         break;
4182                 }
4183 
4184                 switch (status) {
4185                 case LPFC_SLI_EVENT_STATUS_VALID:
4186                         return; /* no message if the sfp is okay */
4187                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4188                         sprintf(message, "Optics faulted/incorrectly "
4189                                 "installed/not installed - Reseat optics, "
4190                                 "if issue not resolved, replace.");
4191                         break;
4192                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4193                         sprintf(message,
4194                                 "Optics of two types installed - Remove one "
4195                                 "optic or install matching pair of optics.");
4196                         break;
4197                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4198                         sprintf(message, "Incompatible optics - Replace with "
4199                                 "compatible optics for card to function.");
4200                         break;
4201                 default:
4202                         /* firmware is reporting a status we don't know about */
4203                         sprintf(message, "Unknown event status x%02x", status);
4204                         break;
4205                 }
4206 
4207                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4208                                 "3176 Misconfigured Physical Port - "
4209                                 "Port Name %c %s\n", port_name, message);
4210                 break;
4211         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4212                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4213                                 "3192 Remote DPort Test Initiated - "
4214                                 "Event Data1:x%08x Event Data2: x%08x\n",
4215                                 acqe_sli->event_data1, acqe_sli->event_data2);
4216                 break;
4217         default:
4218                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4219                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4220                                 "x%08x SLI Event Type:%d\n",
4221                                 acqe_sli->event_data1, acqe_sli->event_data2,
4222                                 evt_type);
4223                 break;
4224         }
4225 }
4226 
4227 /**
4228  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4229  * @vport: pointer to vport data structure.
4230  *
4231  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4232  * response to a CVL event.
4233  *
4234  * Return the pointer to the ndlp with the vport if successful, otherwise
4235  * return NULL.
4236  **/
4237 static struct lpfc_nodelist *
4238 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4239 {
4240         struct lpfc_nodelist *ndlp;
4241         struct Scsi_Host *shost;
4242         struct lpfc_hba *phba;
4243 
4244         if (!vport)
4245                 return NULL;
4246         phba = vport->phba;
4247         if (!phba)
4248                 return NULL;
4249         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4250         if (!ndlp) {
4251                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4252                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4253                 if (!ndlp)
4254                         return 0;
4255                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4256                 /* Set the node type */
4257                 ndlp->nlp_type |= NLP_FABRIC;
4258                 /* Put ndlp onto node list */
4259                 lpfc_enqueue_node(vport, ndlp);
4260         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4261                 /* re-setup ndlp without removing from node list */
4262                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4263                 if (!ndlp)
4264                         return 0;
4265         }
4266         if ((phba->pport->port_state < LPFC_FLOGI) &&
4267                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4268                 return NULL;
4269         /* If virtual link is not yet instantiated ignore CVL */
4270         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4271                 && (vport->port_state != LPFC_VPORT_FAILED))
4272                 return NULL;
4273         shost = lpfc_shost_from_vport(vport);
4274         if (!shost)
4275                 return NULL;
4276         lpfc_linkdown_port(vport);
4277         lpfc_cleanup_pending_mbox(vport);
4278         spin_lock_irq(shost->host_lock);
4279         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4280         spin_unlock_irq(shost->host_lock);
4281 
4282         return ndlp;
4283 }
4284 
4285 /**
4286  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4287  * @vport: pointer to lpfc hba data structure.
4288  *
4289  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4290  * response to a FCF dead event.
4291  **/
4292 static void
4293 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4294 {
4295         struct lpfc_vport **vports;
4296         int i;
4297 
4298         vports = lpfc_create_vport_work_array(phba);
4299         if (vports)
4300                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4301                         lpfc_sli4_perform_vport_cvl(vports[i]);
4302         lpfc_destroy_vport_work_array(phba, vports);
4303 }
4304 
4305 /**
4306  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4307  * @phba: pointer to lpfc hba data structure.
4308  * @acqe_link: pointer to the async fcoe completion queue entry.
4309  *
4310  * This routine is to handle the SLI4 asynchronous fcoe event.
4311  **/
4312 static void
4313 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4314                         struct lpfc_acqe_fip *acqe_fip)
4315 {
4316         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4317         int rc;
4318         struct lpfc_vport *vport;
4319         struct lpfc_nodelist *ndlp;
4320         struct Scsi_Host  *shost;
4321         int active_vlink_present;
4322         struct lpfc_vport **vports;
4323         int i;
4324 
4325         phba->fc_eventTag = acqe_fip->event_tag;
4326         phba->fcoe_eventtag = acqe_fip->event_tag;
4327         switch (event_type) {
4328         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4329         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4330                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4331                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4332                                         LOG_DISCOVERY,
4333                                         "2546 New FCF event, evt_tag:x%x, "
4334                                         "index:x%x\n",
4335                                         acqe_fip->event_tag,
4336                                         acqe_fip->index);
4337                 else
4338                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4339                                         LOG_DISCOVERY,
4340                                         "2788 FCF param modified event, "
4341                                         "evt_tag:x%x, index:x%x\n",
4342                                         acqe_fip->event_tag,
4343                                         acqe_fip->index);
4344                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4345                         /*
4346                          * During period of FCF discovery, read the FCF
4347                          * table record indexed by the event to update
4348                          * FCF roundrobin failover eligible FCF bmask.
4349                          */
4350                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4351                                         LOG_DISCOVERY,
4352                                         "2779 Read FCF (x%x) for updating "
4353                                         "roundrobin FCF failover bmask\n",
4354                                         acqe_fip->index);
4355                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4356                 }
4357 
4358                 /* If the FCF discovery is in progress, do nothing. */
4359                 spin_lock_irq(&phba->hbalock);
4360                 if (phba->hba_flag & FCF_TS_INPROG) {
4361                         spin_unlock_irq(&phba->hbalock);
4362                         break;
4363                 }
4364                 /* If fast FCF failover rescan event is pending, do nothing */
4365                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4366                         spin_unlock_irq(&phba->hbalock);
4367                         break;
4368                 }
4369 
4370                 /* If the FCF has been in discovered state, do nothing. */
4371                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4372                         spin_unlock_irq(&phba->hbalock);
4373                         break;
4374                 }
4375                 spin_unlock_irq(&phba->hbalock);
4376 
4377                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4378                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4379                                 "2770 Start FCF table scan per async FCF "
4380                                 "event, evt_tag:x%x, index:x%x\n",
4381                                 acqe_fip->event_tag, acqe_fip->index);
4382                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4383                                                      LPFC_FCOE_FCF_GET_FIRST);
4384                 if (rc)
4385                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4386                                         "2547 Issue FCF scan read FCF mailbox "
4387                                         "command failed (x%x)\n", rc);
4388                 break;
4389 
4390         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4391                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4392                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4393                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4394                         acqe_fip->event_tag);
4395                 break;
4396 
4397         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4398                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4399                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4400                         "2549 FCF (x%x) disconnected from network, "
4401                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4402                 /*
4403                  * If we are in the middle of FCF failover process, clear
4404                  * the corresponding FCF bit in the roundrobin bitmap.
4405                  */
4406                 spin_lock_irq(&phba->hbalock);
4407                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4408                         spin_unlock_irq(&phba->hbalock);
4409                         /* Update FLOGI FCF failover eligible FCF bmask */
4410                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4411                         break;
4412                 }
4413                 spin_unlock_irq(&phba->hbalock);
4414 
4415                 /* If the event is not for currently used fcf do nothing */
4416                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4417                         break;
4418 
4419                 /*
4420                  * Otherwise, request the port to rediscover the entire FCF
4421                  * table for a fast recovery from case that the current FCF
4422                  * is no longer valid as we are not in the middle of FCF
4423                  * failover process already.
4424                  */
4425                 spin_lock_irq(&phba->hbalock);
4426                 /* Mark the fast failover process in progress */
4427                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4428                 spin_unlock_irq(&phba->hbalock);
4429 
4430                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4431                                 "2771 Start FCF fast failover process due to "
4432                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4433                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4434                 rc = lpfc_sli4_redisc_fcf_table(phba);
4435                 if (rc) {
4436                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4437                                         LOG_DISCOVERY,
4438                                         "2772 Issue FCF rediscover mabilbox "
4439                                         "command failed, fail through to FCF "
4440                                         "dead event\n");
4441                         spin_lock_irq(&phba->hbalock);
4442                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4443                         spin_unlock_irq(&phba->hbalock);
4444                         /*
4445                          * Last resort will fail over by treating this
4446                          * as a link down to FCF registration.
4447                          */
4448                         lpfc_sli4_fcf_dead_failthrough(phba);
4449                 } else {
4450                         /* Reset FCF roundrobin bmask for new discovery */
4451                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4452                         /*
4453                          * Handling fast FCF failover to a DEAD FCF event is
4454                          * considered equalivant to receiving CVL to all vports.
4455                          */
4456                         lpfc_sli4_perform_all_vport_cvl(phba);
4457                 }
4458                 break;
4459         case LPFC_FIP_EVENT_TYPE_CVL:
4460                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4461                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4462                         "2718 Clear Virtual Link Received for VPI 0x%x"
4463                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4464 
4465                 vport = lpfc_find_vport_by_vpid(phba,
4466                                                 acqe_fip->index);
4467                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4468                 if (!ndlp)
4469                         break;
4470                 active_vlink_present = 0;
4471 
4472                 vports = lpfc_create_vport_work_array(phba);
4473                 if (vports) {
4474                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4475                                         i++) {
4476                                 if ((!(vports[i]->fc_flag &
4477                                         FC_VPORT_CVL_RCVD)) &&
4478                                         (vports[i]->port_state > LPFC_FDISC)) {
4479                                         active_vlink_present = 1;
4480                                         break;
4481                                 }
4482                         }
4483                         lpfc_destroy_vport_work_array(phba, vports);
4484                 }
4485 
4486                 if (active_vlink_present) {
4487                         /*
4488                          * If there are other active VLinks present,
4489                          * re-instantiate the Vlink using FDISC.
4490                          */
4491                         mod_timer(&ndlp->nlp_delayfunc,
4492                                   jiffies + msecs_to_jiffies(1000));
4493                         shost = lpfc_shost_from_vport(vport);
4494                         spin_lock_irq(shost->host_lock);
4495                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4496                         spin_unlock_irq(shost->host_lock);
4497                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4498                         vport->port_state = LPFC_FDISC;
4499                 } else {
4500                         /*
4501                          * Otherwise, we request port to rediscover
4502                          * the entire FCF table for a fast recovery
4503                          * from possible case that the current FCF
4504                          * is no longer valid if we are not already
4505                          * in the FCF failover process.
4506                          */
4507                         spin_lock_irq(&phba->hbalock);
4508                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4509                                 spin_unlock_irq(&phba->hbalock);
4510                                 break;
4511                         }
4512                         /* Mark the fast failover process in progress */
4513                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4514                         spin_unlock_irq(&phba->hbalock);
4515                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4516                                         LOG_DISCOVERY,
4517                                         "2773 Start FCF failover per CVL, "
4518                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4519                         rc = lpfc_sli4_redisc_fcf_table(phba);
4520                         if (rc) {
4521                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4522                                                 LOG_DISCOVERY,
4523                                                 "2774 Issue FCF rediscover "
4524                                                 "mabilbox command failed, "
4525                                                 "through to CVL event\n");
4526                                 spin_lock_irq(&phba->hbalock);
4527                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4528                                 spin_unlock_irq(&phba->hbalock);
4529                                 /*
4530                                  * Last resort will be re-try on the
4531                                  * the current registered FCF entry.
4532                                  */
4533                                 lpfc_retry_pport_discovery(phba);
4534                         } else
4535                                 /*
4536                                  * Reset FCF roundrobin bmask for new
4537                                  * discovery.
4538                                  */
4539                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4540                 }
4541                 break;
4542         default:
4543                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4544                         "0288 Unknown FCoE event type 0x%x event tag "
4545                         "0x%x\n", event_type, acqe_fip->event_tag);
4546                 break;
4547         }
4548 }
4549 
4550 /**
4551  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4552  * @phba: pointer to lpfc hba data structure.
4553  * @acqe_link: pointer to the async dcbx completion queue entry.
4554  *
4555  * This routine is to handle the SLI4 asynchronous dcbx event.
4556  **/
4557 static void
4558 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4559                          struct lpfc_acqe_dcbx *acqe_dcbx)
4560 {
4561         phba->fc_eventTag = acqe_dcbx->event_tag;
4562         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4563                         "0290 The SLI4 DCBX asynchronous event is not "
4564                         "handled yet\n");
4565 }
4566 
4567 /**
4568  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4569  * @phba: pointer to lpfc hba data structure.
4570  * @acqe_link: pointer to the async grp5 completion queue entry.
4571  *
4572  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4573  * is an asynchronous notified of a logical link speed change.  The Port
4574  * reports the logical link speed in units of 10Mbps.
4575  **/
4576 static void
4577 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4578                          struct lpfc_acqe_grp5 *acqe_grp5)
4579 {
4580         uint16_t prev_ll_spd;
4581 
4582         phba->fc_eventTag = acqe_grp5->event_tag;
4583         phba->fcoe_eventtag = acqe_grp5->event_tag;
4584         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4585         phba->sli4_hba.link_state.logical_speed =
4586                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4587         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4588                         "2789 GRP5 Async Event: Updating logical link speed "
4589                         "from %dMbps to %dMbps\n", prev_ll_spd,
4590                         phba->sli4_hba.link_state.logical_speed);
4591 }
4592 
4593 /**
4594  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4595  * @phba: pointer to lpfc hba data structure.
4596  *
4597  * This routine is invoked by the worker thread to process all the pending
4598  * SLI4 asynchronous events.
4599  **/
4600 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4601 {
4602         struct lpfc_cq_event *cq_event;
4603 
4604         /* First, declare the async event has been handled */
4605         spin_lock_irq(&phba->hbalock);
4606         phba->hba_flag &= ~ASYNC_EVENT;
4607         spin_unlock_irq(&phba->hbalock);
4608         /* Now, handle all the async events */
4609         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4610                 /* Get the first event from the head of the event queue */
4611                 spin_lock_irq(&phba->hbalock);
4612                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4613                                  cq_event, struct lpfc_cq_event, list);
4614                 spin_unlock_irq(&phba->hbalock);
4615                 /* Process the asynchronous event */
4616                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4617                 case LPFC_TRAILER_CODE_LINK:
4618                         lpfc_sli4_async_link_evt(phba,
4619                                                  &cq_event->cqe.acqe_link);
4620                         break;
4621                 case LPFC_TRAILER_CODE_FCOE:
4622                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4623                         break;
4624                 case LPFC_TRAILER_CODE_DCBX:
4625                         lpfc_sli4_async_dcbx_evt(phba,
4626                                                  &cq_event->cqe.acqe_dcbx);
4627                         break;
4628                 case LPFC_TRAILER_CODE_GRP5:
4629                         lpfc_sli4_async_grp5_evt(phba,
4630                                                  &cq_event->cqe.acqe_grp5);
4631                         break;
4632                 case LPFC_TRAILER_CODE_FC:
4633                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4634                         break;
4635                 case LPFC_TRAILER_CODE_SLI:
4636                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4637                         break;
4638                 default:
4639                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4640                                         "1804 Invalid asynchrous event code: "
4641                                         "x%x\n", bf_get(lpfc_trailer_code,
4642                                         &cq_event->cqe.mcqe_cmpl));
4643                         break;
4644                 }
4645                 /* Free the completion event processed to the free pool */
4646                 lpfc_sli4_cq_event_release(phba, cq_event);
4647         }
4648 }
4649 
4650 /**
4651  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4652  * @phba: pointer to lpfc hba data structure.
4653  *
4654  * This routine is invoked by the worker thread to process FCF table
4655  * rediscovery pending completion event.
4656  **/
4657 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4658 {
4659         int rc;
4660 
4661         spin_lock_irq(&phba->hbalock);
4662         /* Clear FCF rediscovery timeout event */
4663         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4664         /* Clear driver fast failover FCF record flag */
4665         phba->fcf.failover_rec.flag = 0;
4666         /* Set state for FCF fast failover */
4667         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4668         spin_unlock_irq(&phba->hbalock);
4669 
4670         /* Scan FCF table from the first entry to re-discover SAN */
4671         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4672                         "2777 Start post-quiescent FCF table scan\n");
4673         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4674         if (rc)
4675                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4676                                 "2747 Issue FCF scan read FCF mailbox "
4677                                 "command failed 0x%x\n", rc);
4678 }
4679 
4680 /**
4681  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4682  * @phba: pointer to lpfc hba data structure.
4683  * @dev_grp: The HBA PCI-Device group number.
4684  *
4685  * This routine is invoked to set up the per HBA PCI-Device group function
4686  * API jump table entries.
4687  *
4688  * Return: 0 if success, otherwise -ENODEV
4689  **/
4690 int
4691 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4692 {
4693         int rc;
4694 
4695         /* Set up lpfc PCI-device group */
4696         phba->pci_dev_grp = dev_grp;
4697 
4698         /* The LPFC_PCI_DEV_OC uses SLI4 */
4699         if (dev_grp == LPFC_PCI_DEV_OC)
4700                 phba->sli_rev = LPFC_SLI_REV4;
4701 
4702         /* Set up device INIT API function jump table */
4703         rc = lpfc_init_api_table_setup(phba, dev_grp);
4704         if (rc)
4705                 return -ENODEV;
4706         /* Set up SCSI API function jump table */
4707         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4708         if (rc)
4709                 return -ENODEV;
4710         /* Set up SLI API function jump table */
4711         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4712         if (rc)
4713                 return -ENODEV;
4714         /* Set up MBOX API function jump table */
4715         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4716         if (rc)
4717                 return -ENODEV;
4718 
4719         return 0;
4720 }
4721 
4722 /**
4723  * lpfc_log_intr_mode - Log the active interrupt mode
4724  * @phba: pointer to lpfc hba data structure.
4725  * @intr_mode: active interrupt mode adopted.
4726  *
4727  * This routine it invoked to log the currently used active interrupt mode
4728  * to the device.
4729  **/
4730 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4731 {
4732         switch (intr_mode) {
4733         case 0:
4734                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4735                                 "0470 Enable INTx interrupt mode.\n");
4736                 break;
4737         case 1:
4738                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4739                                 "0481 Enabled MSI interrupt mode.\n");
4740                 break;
4741         case 2:
4742                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4743                                 "0480 Enabled MSI-X interrupt mode.\n");
4744                 break;
4745         default:
4746                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4747                                 "0482 Illegal interrupt mode.\n");
4748                 break;
4749         }
4750         return;
4751 }
4752 
4753 /**
4754  * lpfc_enable_pci_dev - Enable a generic PCI device.
4755  * @phba: pointer to lpfc hba data structure.
4756  *
4757  * This routine is invoked to enable the PCI device that is common to all
4758  * PCI devices.
4759  *
4760  * Return codes
4761  *      0 - successful
4762  *      other values - error
4763  **/
4764 static int
4765 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4766 {
4767         struct pci_dev *pdev;
4768         int bars = 0;
4769 
4770         /* Obtain PCI device reference */
4771         if (!phba->pcidev)
4772                 goto out_error;
4773         else
4774                 pdev = phba->pcidev;
4775         /* Select PCI BARs */
4776         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4777         /* Enable PCI device */
4778         if (pci_enable_device_mem(pdev))
4779                 goto out_error;
4780         /* Request PCI resource for the device */
4781         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4782                 goto out_disable_device;
4783         /* Set up device as PCI master and save state for EEH */
4784         pci_set_master(pdev);
4785         pci_try_set_mwi(pdev);
4786         pci_save_state(pdev);
4787 
4788         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4789         if (pci_is_pcie(pdev))
4790                 pdev->needs_freset = 1;
4791 
4792         return 0;
4793 
4794 out_disable_device:
4795         pci_disable_device(pdev);
4796 out_error:
4797         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4798                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4799         return -ENODEV;
4800 }
4801 
4802 /**
4803  * lpfc_disable_pci_dev - Disable a generic PCI device.
4804  * @phba: pointer to lpfc hba data structure.
4805  *
4806  * This routine is invoked to disable the PCI device that is common to all
4807  * PCI devices.
4808  **/
4809 static void
4810 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4811 {
4812         struct pci_dev *pdev;
4813         int bars;
4814 
4815         /* Obtain PCI device reference */
4816         if (!phba->pcidev)
4817                 return;
4818         else
4819                 pdev = phba->pcidev;
4820         /* Select PCI BARs */
4821         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4822         /* Release PCI resource and disable PCI device */
4823         pci_release_selected_regions(pdev, bars);
4824         pci_disable_device(pdev);
4825 
4826         return;
4827 }
4828 
4829 /**
4830  * lpfc_reset_hba - Reset a hba
4831  * @phba: pointer to lpfc hba data structure.
4832  *
4833  * This routine is invoked to reset a hba device. It brings the HBA
4834  * offline, performs a board restart, and then brings the board back
4835  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4836  * on outstanding mailbox commands.
4837  **/
4838 void
4839 lpfc_reset_hba(struct lpfc_hba *phba)
4840 {
4841         /* If resets are disabled then set error state and return. */
4842         if (!phba->cfg_enable_hba_reset) {
4843                 phba->link_state = LPFC_HBA_ERROR;
4844                 return;
4845         }
4846         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4847                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4848         else
4849                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4850         lpfc_offline(phba);
4851         lpfc_sli_brdrestart(phba);
4852         lpfc_online(phba);
4853         lpfc_unblock_mgmt_io(phba);
4854 }
4855 
4856 /**
4857  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4858  * @phba: pointer to lpfc hba data structure.
4859  *
4860  * This function enables the PCI SR-IOV virtual functions to a physical
4861  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4862  * enable the number of virtual functions to the physical function. As
4863  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4864  * API call does not considered as an error condition for most of the device.
4865  **/
4866 uint16_t
4867 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4868 {
4869         struct pci_dev *pdev = phba->pcidev;
4870         uint16_t nr_virtfn;
4871         int pos;
4872 
4873         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4874         if (pos == 0)
4875                 return 0;
4876 
4877         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4878         return nr_virtfn;
4879 }
4880 
4881 /**
4882  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4883  * @phba: pointer to lpfc hba data structure.
4884  * @nr_vfn: number of virtual functions to be enabled.
4885  *
4886  * This function enables the PCI SR-IOV virtual functions to a physical
4887  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4888  * enable the number of virtual functions to the physical function. As
4889  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4890  * API call does not considered as an error condition for most of the device.
4891  **/
4892 int
4893 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4894 {
4895         struct pci_dev *pdev = phba->pcidev;
4896         uint16_t max_nr_vfn;
4897         int rc;
4898 
4899         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4900         if (nr_vfn > max_nr_vfn) {
4901                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4902                                 "3057 Requested vfs (%d) greater than "
4903                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4904                 return -EINVAL;
4905         }
4906 
4907         rc = pci_enable_sriov(pdev, nr_vfn);
4908         if (rc) {
4909                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4910                                 "2806 Failed to enable sriov on this device "
4911                                 "with vfn number nr_vf:%d, rc:%d\n",
4912                                 nr_vfn, rc);
4913         } else
4914                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4915                                 "2807 Successful enable sriov on this device "
4916                                 "with vfn number nr_vf:%d\n", nr_vfn);
4917         return rc;
4918 }
4919 
4920 /**
4921  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4922  * @phba: pointer to lpfc hba data structure.
4923  *
4924  * This routine is invoked to set up the driver internal resources specific to
4925  * support the SLI-3 HBA device it attached to.
4926  *
4927  * Return codes
4928  *      0 - successful
4929  *      other values - error
4930  **/
4931 static int
4932 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4933 {
4934         struct lpfc_sli *psli;
4935         int rc;
4936 
4937         /*
4938          * Initialize timers used by driver
4939          */
4940 
4941         /* Heartbeat timer */
4942         init_timer(&phba->hb_tmofunc);
4943         phba->hb_tmofunc.function = lpfc_hb_timeout;
4944         phba->hb_tmofunc.data = (unsigned long)phba;
4945 
4946         psli = &phba->sli;
4947         /* MBOX heartbeat timer */
4948         init_timer(&psli->mbox_tmo);
4949         psli->mbox_tmo.function = lpfc_mbox_timeout;
4950         psli->mbox_tmo.data = (unsigned long) phba;
4951         /* FCP polling mode timer */
4952         init_timer(&phba->fcp_poll_timer);
4953         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4954         phba->fcp_poll_timer.data = (unsigned long) phba;
4955         /* Fabric block timer */
4956         init_timer(&phba->fabric_block_timer);
4957         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4958         phba->fabric_block_timer.data = (unsigned long) phba;
4959         /* EA polling mode timer */
4960         init_timer(&phba->eratt_poll);
4961         phba->eratt_poll.function = lpfc_poll_eratt;
4962         phba->eratt_poll.data = (unsigned long) phba;
4963 
4964         /* Host attention work mask setup */
4965         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4966         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4967 
4968         /* Get all the module params for configuring this host */
4969         lpfc_get_cfgparam(phba);
4970         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4971                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4972                 /* check for menlo minimum sg count */
4973                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4974                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4975         }
4976 
4977         if (!phba->sli.ring)
4978                 phba->sli.ring = (struct lpfc_sli_ring *)
4979                         kzalloc(LPFC_SLI3_MAX_RING *
4980                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4981         if (!phba->sli.ring)
4982                 return -ENOMEM;
4983 
4984         /*
4985          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4986          * used to create the sg_dma_buf_pool must be dynamically calculated.
4987          */
4988 
4989         /* Initialize the host templates the configured values. */
4990         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4991         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4992 
4993         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
4994         if (phba->cfg_enable_bg) {
4995                 /*
4996                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4997                  * the FCP rsp, and a BDE for each. Sice we have no control
4998                  * over how many protection data segments the SCSI Layer
4999                  * will hand us (ie: there could be one for every block
5000                  * in the IO), we just allocate enough BDEs to accomidate
5001                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5002                  * minimize the risk of running out.
5003                  */
5004                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5005                         sizeof(struct fcp_rsp) +
5006                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5007 
5008                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5009                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5010 
5011                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5012                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5013         } else {
5014                 /*
5015                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5016                  * the FCP rsp, a BDE for each, and a BDE for up to
5017                  * cfg_sg_seg_cnt data segments.
5018                  */
5019                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5020                         sizeof(struct fcp_rsp) +
5021                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5022 
5023                 /* Total BDEs in BPL for scsi_sg_list */
5024                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5025         }
5026 
5027         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5028                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5029                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5030                         phba->cfg_total_seg_cnt);
5031 
5032         phba->max_vpi = LPFC_MAX_VPI;
5033         /* This will be set to correct value after config_port mbox */
5034         phba->max_vports = 0;
5035 
5036         /*
5037          * Initialize the SLI Layer to run with lpfc HBAs.
5038          */
5039         lpfc_sli_setup(phba);
5040         lpfc_sli_queue_setup(phba);
5041 
5042         /* Allocate device driver memory */
5043         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5044                 return -ENOMEM;
5045 
5046         /*
5047          * Enable sr-iov virtual functions if supported and configured
5048          * through the module parameter.
5049          */
5050         if (phba->cfg_sriov_nr_virtfn > 0) {
5051                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5052                                                  phba->cfg_sriov_nr_virtfn);
5053                 if (rc) {
5054                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5055                                         "2808 Requested number of SR-IOV "
5056                                         "virtual functions (%d) is not "
5057                                         "supported\n",
5058                                         phba->cfg_sriov_nr_virtfn);
5059                         phba->cfg_sriov_nr_virtfn = 0;
5060                 }
5061         }
5062 
5063         return 0;
5064 }
5065 
5066 /**
5067  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5068  * @phba: pointer to lpfc hba data structure.
5069  *
5070  * This routine is invoked to unset the driver internal resources set up
5071  * specific for supporting the SLI-3 HBA device it attached to.
5072  **/
5073 static void
5074 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5075 {
5076         /* Free device driver memory allocated */
5077         lpfc_mem_free_all(phba);
5078 
5079         return;
5080 }
5081 
5082 /**
5083  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5084  * @phba: pointer to lpfc hba data structure.
5085  *
5086  * This routine is invoked to set up the driver internal resources specific to
5087  * support the SLI-4 HBA device it attached to.
5088  *
5089  * Return codes
5090  *      0 - successful
5091  *      other values - error
5092  **/
5093 static int
5094 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5095 {
5096         struct lpfc_vector_map_info *cpup;
5097         struct lpfc_sli *psli;
5098         LPFC_MBOXQ_t *mboxq;
5099         int rc, i, hbq_count, max_buf_size;
5100         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5101         struct lpfc_mqe *mqe;
5102         int longs;
5103         int fof_vectors = 0;
5104 
5105         /* Get all the module params for configuring this host */
5106         lpfc_get_cfgparam(phba);
5107 
5108         /* Before proceed, wait for POST done and device ready */
5109         rc = lpfc_sli4_post_status_check(phba);
5110         if (rc)
5111                 return -ENODEV;
5112 
5113         /*
5114          * Initialize timers used by driver
5115          */
5116 
5117         /* Heartbeat timer */
5118         init_timer(&phba->hb_tmofunc);
5119         phba->hb_tmofunc.function = lpfc_hb_timeout;
5120         phba->hb_tmofunc.data = (unsigned long)phba;
5121         init_timer(&phba->rrq_tmr);
5122         phba->rrq_tmr.function = lpfc_rrq_timeout;
5123         phba->rrq_tmr.data = (unsigned long)phba;
5124 
5125         psli = &phba->sli;
5126         /* MBOX heartbeat timer */
5127         init_timer(&psli->mbox_tmo);
5128         psli->mbox_tmo.function = lpfc_mbox_timeout;
5129         psli->mbox_tmo.data = (unsigned long) phba;
5130         /* Fabric block timer */
5131         init_timer(&phba->fabric_block_timer);
5132         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5133         phba->fabric_block_timer.data = (unsigned long) phba;
5134         /* EA polling mode timer */
5135         init_timer(&phba->eratt_poll);
5136         phba->eratt_poll.function = lpfc_poll_eratt;
5137         phba->eratt_poll.data = (unsigned long) phba;
5138         /* FCF rediscover timer */
5139         init_timer(&phba->fcf.redisc_wait);
5140         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5141         phba->fcf.redisc_wait.data = (unsigned long)phba;
5142 
5143         /*
5144          * Control structure for handling external multi-buffer mailbox
5145          * command pass-through.
5146          */
5147         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5148                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5149         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5150 
5151         phba->max_vpi = LPFC_MAX_VPI;
5152 
5153         /* This will be set to correct value after the read_config mbox */
5154         phba->max_vports = 0;
5155 
5156         /* Program the default value of vlan_id and fc_map */
5157         phba->valid_vlan = 0;
5158         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5159         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5160         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5161 
5162         /*
5163          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5164          * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5165          */
5166         if (!phba->sli.ring)
5167                 phba->sli.ring = kzalloc(
5168                         (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5169                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5170         if (!phba->sli.ring)
5171                 return -ENOMEM;
5172 
5173         /*
5174          * It doesn't matter what family our adapter is in, we are
5175          * limited to 2 Pages, 512 SGEs, for our SGL.
5176          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5177          */
5178         max_buf_size = (2 * SLI4_PAGE_SIZE);
5179         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5180                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5181 
5182         /*
5183          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5184          * used to create the sg_dma_buf_pool must be dynamically calculated.
5185          */
5186 
5187         if (phba->cfg_enable_bg) {
5188                 /*
5189                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5190                  * the FCP rsp, and a SGE for each. Sice we have no control
5191                  * over how many protection data segments the SCSI Layer
5192                  * will hand us (ie: there could be one for every block
5193                  * in the IO), we just allocate enough SGEs to accomidate
5194                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5195                  * minimize the risk of running out.
5196                  */
5197                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5198                         sizeof(struct fcp_rsp) + max_buf_size;
5199 
5200                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5201                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5202 
5203                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5204                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5205         } else {
5206                 /*
5207                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5208                  * the FCP rsp, a SGE for each, and a SGE for up to
5209                  * cfg_sg_seg_cnt data segments.
5210                  */
5211                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5212                         sizeof(struct fcp_rsp) +
5213                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5214 
5215                 /* Total SGEs for scsi_sg_list */
5216                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5217                 /*
5218                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5219                  * to post 1 page for the SGL.
5220                  */
5221         }
5222 
5223         /* Initialize the host templates with the updated values. */
5224         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5225         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5226 
5227         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5228                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5229         else
5230                 phba->cfg_sg_dma_buf_size =
5231                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5232 
5233         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5234                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5235                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5236                         phba->cfg_total_seg_cnt);
5237 
5238         /* Initialize buffer queue management fields */
5239         hbq_count = lpfc_sli_hbq_count();
5240         for (i = 0; i < hbq_count; ++i)
5241                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5242         INIT_LIST_HEAD(&phba->rb_pend_list);
5243         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5244         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5245 
5246         /*
5247          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5248          */
5249         /* Initialize the Abort scsi buffer list used by driver */
5250         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5251         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5252         /* This abort list used by worker thread */
5253         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5254 
5255         /*
5256          * Initialize driver internal slow-path work queues
5257          */
5258 
5259         /* Driver internel slow-path CQ Event pool */
5260         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5261         /* Response IOCB work queue list */
5262         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5263         /* Asynchronous event CQ Event work queue list */
5264         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5265         /* Fast-path XRI aborted CQ Event work queue list */
5266         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5267         /* Slow-path XRI aborted CQ Event work queue list */
5268         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5269         /* Receive queue CQ Event work queue list */
5270         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5271 
5272         /* Initialize extent block lists. */
5273         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5274         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5275         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5276         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5277 
5278         /* Initialize the driver internal SLI layer lists. */
5279         lpfc_sli_setup(phba);
5280         lpfc_sli_queue_setup(phba);
5281 
5282         /* Allocate device driver memory */
5283         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5284         if (rc)
5285                 return -ENOMEM;
5286 
5287         /* IF Type 2 ports get initialized now. */
5288         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5289             LPFC_SLI_INTF_IF_TYPE_2) {
5290                 rc = lpfc_pci_function_reset(phba);
5291                 if (unlikely(rc))
5292                         return -ENODEV;
5293                 phba->temp_sensor_support = 1;
5294         }
5295 
5296         /* Create the bootstrap mailbox command */
5297         rc = lpfc_create_bootstrap_mbox(phba);
5298         if (unlikely(rc))
5299                 goto out_free_mem;
5300 
5301         /* Set up the host's endian order with the device. */
5302         rc = lpfc_setup_endian_order(phba);
5303         if (unlikely(rc))
5304                 goto out_free_bsmbx;
5305 
5306         /* Set up the hba's configuration parameters. */
5307         rc = lpfc_sli4_read_config(phba);
5308         if (unlikely(rc))
5309                 goto out_free_bsmbx;
5310         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5311         if (unlikely(rc))
5312                 goto out_free_bsmbx;
5313 
5314         /* IF Type 0 ports get initialized now. */
5315         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5316             LPFC_SLI_INTF_IF_TYPE_0) {
5317                 rc = lpfc_pci_function_reset(phba);
5318                 if (unlikely(rc))
5319                         goto out_free_bsmbx;
5320         }
5321 
5322         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5323                                                        GFP_KERNEL);
5324         if (!mboxq) {
5325                 rc = -ENOMEM;
5326                 goto out_free_bsmbx;
5327         }
5328 
5329         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5330         lpfc_supported_pages(mboxq);
5331         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5332         if (!rc) {
5333                 mqe = &mboxq->u.mqe;
5334                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5335                        LPFC_MAX_SUPPORTED_PAGES);
5336                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5337                         switch (pn_page[i]) {
5338                         case LPFC_SLI4_PARAMETERS:
5339                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5340                                 break;
5341                         default:
5342                                 break;
5343                         }
5344                 }
5345                 /* Read the port's SLI4 Parameters capabilities if supported. */
5346                 if (phba->sli4_hba.pc_sli4_params.supported)
5347                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5348                 if (rc) {
5349                         mempool_free(mboxq, phba->mbox_mem_pool);
5350                         rc = -EIO;
5351                         goto out_free_bsmbx;
5352                 }
5353         }
5354         /*
5355          * Get sli4 parameters that override parameters from Port capabilities.
5356          * If this call fails, it isn't critical unless the SLI4 parameters come
5357          * back in conflict.
5358          */
5359         rc = lpfc_get_sli4_parameters(phba, mboxq);
5360         if (rc) {
5361                 if (phba->sli4_hba.extents_in_use &&
5362                     phba->sli4_hba.rpi_hdrs_in_use) {
5363                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5364                                 "2999 Unsupported SLI4 Parameters "
5365                                 "Extents and RPI headers enabled.\n");
5366                         goto out_free_bsmbx;
5367                 }
5368         }
5369         mempool_free(mboxq, phba->mbox_mem_pool);
5370 
5371         /* Verify OAS is supported */
5372         lpfc_sli4_oas_verify(phba);
5373         if (phba->cfg_fof)
5374                 fof_vectors = 1;
5375 
5376         /* Verify all the SLI4 queues */
5377         rc = lpfc_sli4_queue_verify(phba);
5378         if (rc)
5379                 goto out_free_bsmbx;
5380 
5381         /* Create driver internal CQE event pool */
5382         rc = lpfc_sli4_cq_event_pool_create(phba);
5383         if (rc)
5384                 goto out_free_bsmbx;
5385 
5386         /* Initialize sgl lists per host */
5387         lpfc_init_sgl_list(phba);
5388 
5389         /* Allocate and initialize active sgl array */
5390         rc = lpfc_init_active_sgl_array(phba);
5391         if (rc) {
5392                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5393                                 "1430 Failed to initialize sgl list.\n");
5394                 goto out_destroy_cq_event_pool;
5395         }
5396         rc = lpfc_sli4_init_rpi_hdrs(phba);
5397         if (rc) {
5398                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5399                                 "1432 Failed to initialize rpi headers.\n");
5400                 goto out_free_active_sgl;
5401         }
5402 
5403         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5404         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5405         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5406                                          GFP_KERNEL);
5407         if (!phba->fcf.fcf_rr_bmask) {
5408                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5409                                 "2759 Failed allocate memory for FCF round "
5410                                 "robin failover bmask\n");
5411                 rc = -ENOMEM;
5412                 goto out_remove_rpi_hdrs;
5413         }
5414 
5415         phba->sli4_hba.fcp_eq_hdl =
5416                         kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5417                             (fof_vectors + phba->cfg_fcp_io_channel)),
5418                             GFP_KERNEL);
5419         if (!phba->sli4_hba.fcp_eq_hdl) {
5420                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5421                                 "2572 Failed allocate memory for "
5422                                 "fast-path per-EQ handle array\n");
5423                 rc = -ENOMEM;
5424                 goto out_free_fcf_rr_bmask;
5425         }
5426 
5427         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5428                                   (fof_vectors +
5429                                    phba->cfg_fcp_io_channel)), GFP_KERNEL);
5430         if (!phba->sli4_hba.msix_entries) {
5431                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5432                                 "2573 Failed allocate memory for msi-x "
5433                                 "interrupt vector entries\n");
5434                 rc = -ENOMEM;
5435                 goto out_free_fcp_eq_hdl;
5436         }
5437 
5438         phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5439                                          phba->sli4_hba.num_present_cpu),
5440                                          GFP_KERNEL);
5441         if (!phba->sli4_hba.cpu_map) {
5442                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5443                                 "3327 Failed allocate memory for msi-x "
5444                                 "interrupt vector mapping\n");
5445                 rc = -ENOMEM;
5446                 goto out_free_msix;
5447         }
5448         if (lpfc_used_cpu == NULL) {
5449                 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5450                                          GFP_KERNEL);
5451                 if (!lpfc_used_cpu) {
5452                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5453                                         "3335 Failed allocate memory for msi-x "
5454                                         "interrupt vector mapping\n");
5455                         kfree(phba->sli4_hba.cpu_map);
5456                         rc = -ENOMEM;
5457                         goto out_free_msix;
5458                 }
5459                 for (i = 0; i < lpfc_present_cpu; i++)
5460                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5461         }
5462 
5463         /* Initialize io channels for round robin */
5464         cpup = phba->sli4_hba.cpu_map;
5465         rc = 0;
5466         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5467                 cpup->channel_id = rc;
5468                 rc++;
5469                 if (rc >= phba->cfg_fcp_io_channel)
5470                         rc = 0;
5471         }
5472 
5473         /*
5474          * Enable sr-iov virtual functions if supported and configured
5475          * through the module parameter.
5476          */
5477         if (phba->cfg_sriov_nr_virtfn > 0) {
5478                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5479                                                  phba->cfg_sriov_nr_virtfn);
5480                 if (rc) {
5481                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5482                                         "3020 Requested number of SR-IOV "
5483                                         "virtual functions (%d) is not "
5484                                         "supported\n",
5485                                         phba->cfg_sriov_nr_virtfn);
5486                         phba->cfg_sriov_nr_virtfn = 0;
5487                 }
5488         }
5489 
5490         return 0;
5491 
5492 out_free_msix:
5493         kfree(phba->sli4_hba.msix_entries);
5494 out_free_fcp_eq_hdl:
5495         kfree(phba->sli4_hba.fcp_eq_hdl);
5496 out_free_fcf_rr_bmask:
5497         kfree(phba->fcf.fcf_rr_bmask);
5498 out_remove_rpi_hdrs:
5499         lpfc_sli4_remove_rpi_hdrs(phba);
5500 out_free_active_sgl:
5501         lpfc_free_active_sgl(phba);
5502 out_destroy_cq_event_pool:
5503         lpfc_sli4_cq_event_pool_destroy(phba);
5504 out_free_bsmbx:
5505         lpfc_destroy_bootstrap_mbox(phba);
5506 out_free_mem:
5507         lpfc_mem_free(phba);
5508         return rc;
5509 }
5510 
5511 /**
5512  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5513  * @phba: pointer to lpfc hba data structure.
5514  *
5515  * This routine is invoked to unset the driver internal resources set up
5516  * specific for supporting the SLI-4 HBA device it attached to.
5517  **/
5518 static void
5519 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5520 {
5521         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5522 
5523         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5524         kfree(phba->sli4_hba.cpu_map);
5525         phba->sli4_hba.num_present_cpu = 0;
5526         phba->sli4_hba.num_online_cpu = 0;
5527         phba->sli4_hba.curr_disp_cpu = 0;
5528 
5529         /* Free memory allocated for msi-x interrupt vector entries */
5530         kfree(phba->sli4_hba.msix_entries);
5531 
5532         /* Free memory allocated for fast-path work queue handles */
5533         kfree(phba->sli4_hba.fcp_eq_hdl);
5534 
5535         /* Free the allocated rpi headers. */
5536         lpfc_sli4_remove_rpi_hdrs(phba);
5537         lpfc_sli4_remove_rpis(phba);
5538 
5539         /* Free eligible FCF index bmask */
5540         kfree(phba->fcf.fcf_rr_bmask);
5541 
5542         /* Free the ELS sgl list */
5543         lpfc_free_active_sgl(phba);
5544         lpfc_free_els_sgl_list(phba);
5545 
5546         /* Free the completion queue EQ event pool */
5547         lpfc_sli4_cq_event_release_all(phba);
5548         lpfc_sli4_cq_event_pool_destroy(phba);
5549 
5550         /* Release resource identifiers. */
5551         lpfc_sli4_dealloc_resource_identifiers(phba);
5552 
5553         /* Free the bsmbx region. */
5554         lpfc_destroy_bootstrap_mbox(phba);
5555 
5556         /* Free the SLI Layer memory with SLI4 HBAs */
5557         lpfc_mem_free_all(phba);
5558 
5559         /* Free the current connect table */
5560         list_for_each_entry_safe(conn_entry, next_conn_entry,
5561                 &phba->fcf_conn_rec_list, list) {
5562                 list_del_init(&conn_entry->list);
5563                 kfree(conn_entry);
5564         }
5565 
5566         return;
5567 }
5568 
5569 /**
5570  * lpfc_init_api_table_setup - Set up init api function jump table
5571  * @phba: The hba struct for which this call is being executed.
5572  * @dev_grp: The HBA PCI-Device group number.
5573  *
5574  * This routine sets up the device INIT interface API function jump table
5575  * in @phba struct.
5576  *
5577  * Returns: 0 - success, -ENODEV - failure.
5578  **/
5579 int
5580 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5581 {
5582         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5583         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5584         phba->lpfc_selective_reset = lpfc_selective_reset;
5585         switch (dev_grp) {
5586         case LPFC_PCI_DEV_LP:
5587                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5588                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5589                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5590                 break;
5591         case LPFC_PCI_DEV_OC:
5592                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5593                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5594                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5595                 break;
5596         default:
5597                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5598                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5599                                 dev_grp);
5600                 return -ENODEV;
5601                 break;
5602         }
5603         return 0;
5604 }
5605 
5606 /**
5607  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5608  * @phba: pointer to lpfc hba data structure.
5609  *
5610  * This routine is invoked to set up the driver internal resources before the
5611  * device specific resource setup to support the HBA device it attached to.
5612  *
5613  * Return codes
5614  *      0 - successful
5615  *      other values - error
5616  **/
5617 static int
5618 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5619 {
5620         /*
5621          * Driver resources common to all SLI revisions
5622          */
5623         atomic_set(&phba->fast_event_count, 0);
5624         spin_lock_init(&phba->hbalock);
5625 
5626         /* Initialize ndlp management spinlock */
5627         spin_lock_init(&phba->ndlp_lock);
5628 
5629         INIT_LIST_HEAD(&phba->port_list);
5630         INIT_LIST_HEAD(&phba->work_list);
5631         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5632 
5633         /* Initialize the wait queue head for the kernel thread */
5634         init_waitqueue_head(&phba->work_waitq);
5635 
5636         /* Initialize the scsi buffer list used by driver for scsi IO */
5637         spin_lock_init(&phba->scsi_buf_list_get_lock);
5638         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5639         spin_lock_init(&phba->scsi_buf_list_put_lock);
5640         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5641 
5642         /* Initialize the fabric iocb list */
5643         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5644 
5645         /* Initialize list to save ELS buffers */
5646         INIT_LIST_HEAD(&phba->elsbuf);
5647 
5648         /* Initialize FCF connection rec list */
5649         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5650 
5651         /* Initialize OAS configuration list */
5652         spin_lock_init(&phba->devicelock);
5653         INIT_LIST_HEAD(&phba->luns);
5654 
5655         return 0;
5656 }
5657 
5658 /**
5659  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5660  * @phba: pointer to lpfc hba data structure.
5661  *
5662  * This routine is invoked to set up the driver internal resources after the
5663  * device specific resource setup to support the HBA device it attached to.
5664  *
5665  * Return codes
5666  *      0 - successful
5667  *      other values - error
5668  **/
5669 static int
5670 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5671 {
5672         int error;
5673 
5674         /* Startup the kernel thread for this host adapter. */
5675         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5676                                           "lpfc_worker_%d", phba->brd_no);
5677         if (IS_ERR(phba->worker_thread)) {
5678                 error = PTR_ERR(phba->worker_thread);
5679                 return error;
5680         }
5681 
5682         return 0;
5683 }
5684 
5685 /**
5686  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5687  * @phba: pointer to lpfc hba data structure.
5688  *
5689  * This routine is invoked to unset the driver internal resources set up after
5690  * the device specific resource setup for supporting the HBA device it
5691  * attached to.
5692  **/
5693 static void
5694 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5695 {
5696         /* Stop kernel worker thread */
5697         kthread_stop(phba->worker_thread);
5698 }
5699 
5700 /**
5701  * lpfc_free_iocb_list - Free iocb list.
5702  * @phba: pointer to lpfc hba data structure.
5703  *
5704  * This routine is invoked to free the driver's IOCB list and memory.
5705  **/
5706 static void
5707 lpfc_free_iocb_list(struct lpfc_hba *phba)
5708 {
5709         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5710 
5711         spin_lock_irq(&phba->hbalock);
5712         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5713                                  &phba->lpfc_iocb_list, list) {
5714                 list_del(&iocbq_entry->list);
5715                 kfree(iocbq_entry);
5716                 phba->total_iocbq_bufs--;
5717         }
5718         spin_unlock_irq(&phba->hbalock);
5719 
5720         return;
5721 }
5722 
5723 /**
5724  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5725  * @phba: pointer to lpfc hba data structure.
5726  *
5727  * This routine is invoked to allocate and initizlize the driver's IOCB
5728  * list and set up the IOCB tag array accordingly.
5729  *
5730  * Return codes
5731  *      0 - successful
5732  *      other values - error
5733  **/
5734 static int
5735 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5736 {
5737         struct lpfc_iocbq *iocbq_entry = NULL;
5738         uint16_t iotag;
5739         int i;
5740 
5741         /* Initialize and populate the iocb list per host.  */
5742         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5743         for (i = 0; i < iocb_count; i++) {
5744                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5745                 if (iocbq_entry == NULL) {
5746                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5747                                 "expected %d count. Unloading driver.\n",
5748                                 __func__, i, LPFC_IOCB_LIST_CNT);
5749                         goto out_free_iocbq;
5750                 }
5751 
5752                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5753                 if (iotag == 0) {
5754                         kfree(iocbq_entry);
5755                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5756                                 "Unloading driver.\n", __func__);
5757                         goto out_free_iocbq;
5758                 }
5759                 iocbq_entry->sli4_lxritag = NO_XRI;
5760                 iocbq_entry->sli4_xritag = NO_XRI;
5761 
5762                 spin_lock_irq(&phba->hbalock);
5763                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5764                 phba->total_iocbq_bufs++;
5765                 spin_unlock_irq(&phba->hbalock);
5766         }
5767 
5768         return 0;
5769 
5770 out_free_iocbq:
5771         lpfc_free_iocb_list(phba);
5772 
5773         return -ENOMEM;
5774 }
5775 
5776 /**
5777  * lpfc_free_sgl_list - Free a given sgl list.
5778  * @phba: pointer to lpfc hba data structure.
5779  * @sglq_list: pointer to the head of sgl list.
5780  *
5781  * This routine is invoked to free a give sgl list and memory.
5782  **/
5783 void
5784 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5785 {
5786         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5787 
5788         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5789                 list_del(&sglq_entry->list);
5790                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5791                 kfree(sglq_entry);
5792         }
5793 }
5794 
5795 /**
5796  * lpfc_free_els_sgl_list - Free els sgl list.
5797  * @phba: pointer to lpfc hba data structure.
5798  *
5799  * This routine is invoked to free the driver's els sgl list and memory.
5800  **/
5801 static void
5802 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5803 {
5804         LIST_HEAD(sglq_list);
5805         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
5806 
5807         /* Retrieve all els sgls from driver list */
5808         spin_lock_irq(&phba->hbalock);
5809         spin_lock(&pring->ring_lock);
5810         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5811         spin_unlock(&pring->ring_lock);
5812         spin_unlock_irq(&phba->hbalock);
5813 
5814         /* Now free the sgl list */
5815         lpfc_free_sgl_list(phba, &sglq_list);
5816 }
5817 
5818 /**
5819  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5820  * @phba: pointer to lpfc hba data structure.
5821  *
5822  * This routine is invoked to allocate the driver's active sgl memory.
5823  * This array will hold the sglq_entry's for active IOs.
5824  **/
5825 static int
5826 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5827 {
5828         int size;
5829         size = sizeof(struct lpfc_sglq *);
5830         size *= phba->sli4_hba.max_cfg_param.max_xri;
5831 
5832         phba->sli4_hba.lpfc_sglq_active_list =
5833                 kzalloc(size, GFP_KERNEL);
5834         if (!phba->sli4_hba.lpfc_sglq_active_list)
5835                 return -ENOMEM;
5836         return 0;
5837 }
5838 
5839 /**
5840  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5841  * @phba: pointer to lpfc hba data structure.
5842  *
5843  * This routine is invoked to walk through the array of active sglq entries
5844  * and free all of the resources.
5845  * This is just a place holder for now.
5846  **/
5847 static void
5848 lpfc_free_active_sgl(struct lpfc_hba *phba)
5849 {
5850         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5851 }
5852 
5853 /**
5854  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5855  * @phba: pointer to lpfc hba data structure.
5856  *
5857  * This routine is invoked to allocate and initizlize the driver's sgl
5858  * list and set up the sgl xritag tag array accordingly.
5859  *
5860  **/
5861 static void
5862 lpfc_init_sgl_list(struct lpfc_hba *phba)
5863 {
5864         /* Initialize and populate the sglq list per host/VF. */
5865         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5866         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5867 
5868         /* els xri-sgl book keeping */
5869         phba->sli4_hba.els_xri_cnt = 0;
5870 
5871         /* scsi xri-buffer book keeping */
5872         phba->sli4_hba.scsi_xri_cnt = 0;
5873 }
5874 
5875 /**
5876  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5877  * @phba: pointer to lpfc hba data structure.
5878  *
5879  * This routine is invoked to post rpi header templates to the
5880  * port for those SLI4 ports that do not support extents.  This routine
5881  * posts a PAGE_SIZE memory region to the port to hold up to
5882  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5883  * and should be called only when interrupts are disabled.
5884  *
5885  * Return codes
5886  *      0 - successful
5887  *      -ERROR - otherwise.
5888  **/
5889 int
5890 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5891 {
5892         int rc = 0;
5893         struct lpfc_rpi_hdr *rpi_hdr;
5894 
5895         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5896         if (!phba->sli4_hba.rpi_hdrs_in_use)
5897                 return rc;
5898         if (phba->sli4_hba.extents_in_use)
5899                 return -EIO;
5900 
5901         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5902         if (!rpi_hdr) {
5903                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5904                                 "0391 Error during rpi post operation\n");
5905                 lpfc_sli4_remove_rpis(phba);
5906                 rc = -ENODEV;
5907         }
5908 
5909         return rc;
5910 }
5911 
5912 /**
5913  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5914  * @phba: pointer to lpfc hba data structure.
5915  *
5916  * This routine is invoked to allocate a single 4KB memory region to
5917  * support rpis and stores them in the phba.  This single region
5918  * provides support for up to 64 rpis.  The region is used globally
5919  * by the device.
5920  *
5921  * Returns:
5922  *   A valid rpi hdr on success.
5923  *   A NULL pointer on any failure.
5924  **/
5925 struct lpfc_rpi_hdr *
5926 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5927 {
5928         uint16_t rpi_limit, curr_rpi_range;
5929         struct lpfc_dmabuf *dmabuf;
5930         struct lpfc_rpi_hdr *rpi_hdr;
5931         uint32_t rpi_count;
5932 
5933         /*
5934          * If the SLI4 port supports extents, posting the rpi header isn't
5935          * required.  Set the expected maximum count and let the actual value
5936          * get set when extents are fully allocated.
5937          */
5938         if (!phba->sli4_hba.rpi_hdrs_in_use)
5939                 return NULL;
5940         if (phba->sli4_hba.extents_in_use)
5941                 return NULL;
5942 
5943         /* The limit on the logical index is just the max_rpi count. */
5944         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5945         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5946 
5947         spin_lock_irq(&phba->hbalock);
5948         /*
5949          * Establish the starting RPI in this header block.  The starting
5950          * rpi is normalized to a zero base because the physical rpi is
5951          * port based.
5952          */
5953         curr_rpi_range = phba->sli4_hba.next_rpi;
5954         spin_unlock_irq(&phba->hbalock);
5955 
5956         /*
5957          * The port has a limited number of rpis. The increment here
5958          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5959          * and to allow the full max_rpi range per port.
5960          */
5961         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5962                 rpi_count = rpi_limit - curr_rpi_range;
5963         else
5964                 rpi_count = LPFC_RPI_HDR_COUNT;
5965 
5966         if (!rpi_count)
5967                 return NULL;
5968         /*
5969          * First allocate the protocol header region for the port.  The
5970          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5971          */
5972         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5973         if (!dmabuf)
5974                 return NULL;
5975 
5976         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
5977                                            LPFC_HDR_TEMPLATE_SIZE,
5978                                            &dmabuf->phys, GFP_KERNEL);
5979         if (!dmabuf->virt) {
5980                 rpi_hdr = NULL;
5981                 goto err_free_dmabuf;
5982         }
5983 
5984         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5985                 rpi_hdr = NULL;
5986                 goto err_free_coherent;
5987         }
5988 
5989         /* Save the rpi header data for cleanup later. */
5990         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5991         if (!rpi_hdr)
5992                 goto err_free_coherent;
5993 
5994         rpi_hdr->dmabuf = dmabuf;
5995         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5996         rpi_hdr->page_count = 1;
5997         spin_lock_irq(&phba->hbalock);
5998 
5999         /* The rpi_hdr stores the logical index only. */
6000         rpi_hdr->start_rpi = curr_rpi_range;
6001         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6002 
6003         /*
6004          * The next_rpi stores the next logical module-64 rpi value used
6005          * to post physical rpis in subsequent rpi postings.
6006          */
6007         phba->sli4_hba.next_rpi += rpi_count;
6008         spin_unlock_irq(&phba->hbalock);
6009         return rpi_hdr;
6010 
6011  err_free_coherent:
6012         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6013                           dmabuf->virt, dmabuf->phys);
6014  err_free_dmabuf:
6015         kfree(dmabuf);
6016         return NULL;
6017 }
6018 
6019 /**
6020  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6021  * @phba: pointer to lpfc hba data structure.
6022  *
6023  * This routine is invoked to remove all memory resources allocated
6024  * to support rpis for SLI4 ports not supporting extents. This routine
6025  * presumes the caller has released all rpis consumed by fabric or port
6026  * logins and is prepared to have the header pages removed.
6027  **/
6028 void
6029 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6030 {
6031         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6032 
6033         if (!phba->sli4_hba.rpi_hdrs_in_use)
6034                 goto exit;
6035 
6036         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6037                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6038                 list_del(&rpi_hdr->list);
6039                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6040                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6041                 kfree(rpi_hdr->dmabuf);
6042                 kfree(rpi_hdr);
6043         }
6044  exit:
6045         /* There are no rpis available to the port now. */
6046         phba->sli4_hba.next_rpi = 0;
6047 }
6048 
6049 /**
6050  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6051  * @pdev: pointer to pci device data structure.
6052  *
6053  * This routine is invoked to allocate the driver hba data structure for an
6054  * HBA device. If the allocation is successful, the phba reference to the
6055  * PCI device data structure is set.
6056  *
6057  * Return codes
6058  *      pointer to @phba - successful
6059  *      NULL - error
6060  **/
6061 static struct lpfc_hba *
6062 lpfc_hba_alloc(struct pci_dev *pdev)
6063 {
6064         struct lpfc_hba *phba;
6065 
6066         /* Allocate memory for HBA structure */
6067         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6068         if (!phba) {
6069                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6070                 return NULL;
6071         }
6072 
6073         /* Set reference to PCI device in HBA structure */
6074         phba->pcidev = pdev;
6075 
6076         /* Assign an unused board number */
6077         phba->brd_no = lpfc_get_instance();
6078         if (phba->brd_no < 0) {
6079                 kfree(phba);
6080                 return NULL;
6081         }
6082 
6083         spin_lock_init(&phba->ct_ev_lock);
6084         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6085 
6086         return phba;
6087 }
6088 
6089 /**
6090  * lpfc_hba_free - Free driver hba data structure with a device.
6091  * @phba: pointer to lpfc hba data structure.
6092  *
6093  * This routine is invoked to free the driver hba data structure with an
6094  * HBA device.
6095  **/
6096 static void
6097 lpfc_hba_free(struct lpfc_hba *phba)
6098 {
6099         /* Release the driver assigned board number */
6100         idr_remove(&lpfc_hba_index, phba->brd_no);
6101 
6102         /* Free memory allocated with sli rings */
6103         kfree(phba->sli.ring);
6104         phba->sli.ring = NULL;
6105 
6106         kfree(phba);
6107         return;
6108 }
6109 
6110 /**
6111  * lpfc_create_shost - Create hba physical port with associated scsi host.
6112  * @phba: pointer to lpfc hba data structure.
6113  *
6114  * This routine is invoked to create HBA physical port and associate a SCSI
6115  * host with it.
6116  *
6117  * Return codes
6118  *      0 - successful
6119  *      other values - error
6120  **/
6121 static int
6122 lpfc_create_shost(struct lpfc_hba *phba)
6123 {
6124         struct lpfc_vport *vport;
6125         struct Scsi_Host  *shost;
6126 
6127         /* Initialize HBA FC structure */
6128         phba->fc_edtov = FF_DEF_EDTOV;
6129         phba->fc_ratov = FF_DEF_RATOV;
6130         phba->fc_altov = FF_DEF_ALTOV;
6131         phba->fc_arbtov = FF_DEF_ARBTOV;
6132 
6133         atomic_set(&phba->sdev_cnt, 0);
6134         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6135         if (!vport)
6136                 return -ENODEV;
6137 
6138         shost = lpfc_shost_from_vport(vport);
6139         phba->pport = vport;
6140         lpfc_debugfs_initialize(vport);
6141         /* Put reference to SCSI host to driver's device private data */
6142         pci_set_drvdata(phba->pcidev, shost);
6143 
6144         return 0;
6145 }
6146 
6147 /**
6148  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6149  * @phba: pointer to lpfc hba data structure.
6150  *
6151  * This routine is invoked to destroy HBA physical port and the associated
6152  * SCSI host.
6153  **/
6154 static void
6155 lpfc_destroy_shost(struct lpfc_hba *phba)
6156 {
6157         struct lpfc_vport *vport = phba->pport;
6158 
6159         /* Destroy physical port that associated with the SCSI host */
6160         destroy_port(vport);
6161 
6162         return;
6163 }
6164 
6165 /**
6166  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6167  * @phba: pointer to lpfc hba data structure.
6168  * @shost: the shost to be used to detect Block guard settings.
6169  *
6170  * This routine sets up the local Block guard protocol settings for @shost.
6171  * This routine also allocates memory for debugging bg buffers.
6172  **/
6173 static void
6174 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6175 {
6176         uint32_t old_mask;
6177         uint32_t old_guard;
6178 
6179         int pagecnt = 10;
6180         if (lpfc_prot_mask && lpfc_prot_guard) {
6181                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6182                                 "1478 Registering BlockGuard with the "
6183                                 "SCSI layer\n");
6184 
6185                 old_mask = lpfc_prot_mask;
6186                 old_guard = lpfc_prot_guard;
6187 
6188                 /* Only allow supported values */
6189                 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6190                         SHOST_DIX_TYPE0_PROTECTION |
6191                         SHOST_DIX_TYPE1_PROTECTION);
6192                 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
6193 
6194                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6195                 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6196                         lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6197 
6198                 if (lpfc_prot_mask && lpfc_prot_guard) {
6199                         if ((old_mask != lpfc_prot_mask) ||
6200                                 (old_guard != lpfc_prot_guard))
6201                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6202                                         "1475 Registering BlockGuard with the "
6203                                         "SCSI layer: mask %d  guard %d\n",
6204                                         lpfc_prot_mask, lpfc_prot_guard);
6205 
6206                         scsi_host_set_prot(shost, lpfc_prot_mask);
6207                         scsi_host_set_guard(shost, lpfc_prot_guard);
6208                 } else
6209                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6210                                 "1479 Not Registering BlockGuard with the SCSI "
6211                                 "layer, Bad protection parameters: %d %d\n",
6212                                 old_mask, old_guard);
6213         }
6214 
6215         if (!_dump_buf_data) {
6216                 while (pagecnt) {
6217                         spin_lock_init(&_dump_buf_lock);
6218                         _dump_buf_data =
6219                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6220                         if (_dump_buf_data) {
6221                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6222                                         "9043 BLKGRD: allocated %d pages for "
6223                                        "_dump_buf_data at 0x%p\n",
6224                                        (1 << pagecnt), _dump_buf_data);
6225                                 _dump_buf_data_order = pagecnt;
6226                                 memset(_dump_buf_data, 0,
6227                                        ((1 << PAGE_SHIFT) << pagecnt));
6228                                 break;
6229                         } else
6230                                 --pagecnt;
6231                 }
6232                 if (!_dump_buf_data_order)
6233                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6234                                 "9044 BLKGRD: ERROR unable to allocate "
6235                                "memory for hexdump\n");
6236         } else
6237                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6238                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6239                        "\n", _dump_buf_data);
6240         if (!_dump_buf_dif) {
6241                 while (pagecnt) {
6242                         _dump_buf_dif =
6243                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6244                         if (_dump_buf_dif) {
6245                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6246                                         "9046 BLKGRD: allocated %d pages for "
6247                                        "_dump_buf_dif at 0x%p\n",
6248                                        (1 << pagecnt), _dump_buf_dif);
6249                                 _dump_buf_dif_order = pagecnt;
6250                                 memset(_dump_buf_dif, 0,
6251                                        ((1 << PAGE_SHIFT) << pagecnt));
6252                                 break;
6253                         } else
6254                                 --pagecnt;
6255                 }
6256                 if (!_dump_buf_dif_order)
6257                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6258                         "9047 BLKGRD: ERROR unable to allocate "
6259                                "memory for hexdump\n");
6260         } else
6261                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6262                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6263                        _dump_buf_dif);
6264 }
6265 
6266 /**
6267  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6268  * @phba: pointer to lpfc hba data structure.
6269  *
6270  * This routine is invoked to perform all the necessary post initialization
6271  * setup for the device.
6272  **/
6273 static void
6274 lpfc_post_init_setup(struct lpfc_hba *phba)
6275 {
6276         struct Scsi_Host  *shost;
6277         struct lpfc_adapter_event_header adapter_event;
6278 
6279         /* Get the default values for Model Name and Description */
6280         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6281 
6282         /*
6283          * hba setup may have changed the hba_queue_depth so we need to
6284          * adjust the value of can_queue.
6285          */
6286         shost = pci_get_drvdata(phba->pcidev);
6287         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6288         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6289                 lpfc_setup_bg(phba, shost);
6290 
6291         lpfc_host_attrib_init(shost);
6292 
6293         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6294                 spin_lock_irq(shost->host_lock);
6295                 lpfc_poll_start_timer(phba);
6296                 spin_unlock_irq(shost->host_lock);
6297         }
6298 
6299         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6300                         "0428 Perform SCSI scan\n");
6301         /* Send board arrival event to upper layer */
6302         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6303         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6304         fc_host_post_vendor_event(shost, fc_get_event_number(),
6305                                   sizeof(adapter_event),
6306                                   (char *) &adapter_event,
6307                                   LPFC_NL_VENDOR_ID);
6308         return;
6309 }
6310 
6311 /**
6312  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6313  * @phba: pointer to lpfc hba data structure.
6314  *
6315  * This routine is invoked to set up the PCI device memory space for device
6316  * with SLI-3 interface spec.
6317  *
6318  * Return codes
6319  *      0 - successful
6320  *      other values - error
6321  **/
6322 static int
6323 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6324 {
6325         struct pci_dev *pdev;
6326         unsigned long bar0map_len, bar2map_len;
6327         int i, hbq_count;
6328         void *ptr;
6329         int error = -ENODEV;
6330 
6331         /* Obtain PCI device reference */
6332         if (!phba->pcidev)
6333                 return error;
6334         else
6335                 pdev = phba->pcidev;
6336 
6337         /* Set the device DMA mask size */
6338         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6339          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6340                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6341                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6342                         return error;
6343                 }
6344         }
6345 
6346         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6347          * required by each mapping.
6348          */
6349         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6350         bar0map_len = pci_resource_len(pdev, 0);
6351 
6352         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6353         bar2map_len = pci_resource_len(pdev, 2);
6354 
6355         /* Map HBA SLIM to a kernel virtual address. */
6356         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6357         if (!phba->slim_memmap_p) {
6358                 dev_printk(KERN_ERR, &pdev->dev,
6359                            "ioremap failed for SLIM memory.\n");
6360                 goto out;
6361         }
6362 
6363         /* Map HBA Control Registers to a kernel virtual address. */
6364         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6365         if (!phba->ctrl_regs_memmap_p) {
6366                 dev_printk(KERN_ERR, &pdev->dev,
6367                            "ioremap failed for HBA control registers.\n");
6368                 goto out_iounmap_slim;
6369         }
6370 
6371         /* Allocate memory for SLI-2 structures */
6372         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6373                                                 &phba->slim2p.phys, GFP_KERNEL);
6374         if (!phba->slim2p.virt)
6375                 goto out_iounmap;
6376 
6377         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6378         phba->mbox_ext = (phba->slim2p.virt +
6379                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6380         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6381         phba->IOCBs = (phba->slim2p.virt +
6382                        offsetof(struct lpfc_sli2_slim, IOCBs));
6383 
6384         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6385                                                  lpfc_sli_hbq_size(),
6386                                                  &phba->hbqslimp.phys,
6387                                                  GFP_KERNEL);
6388         if (!phba->hbqslimp.virt)
6389                 goto out_free_slim;
6390 
6391         hbq_count = lpfc_sli_hbq_count();
6392         ptr = phba->hbqslimp.virt;
6393         for (i = 0; i < hbq_count; ++i) {
6394                 phba->hbqs[i].hbq_virt = ptr;
6395                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6396                 ptr += (lpfc_hbq_defs[i]->entry_count *
6397                         sizeof(struct lpfc_hbq_entry));
6398         }
6399         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6400         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6401 
6402         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6403 
6404         INIT_LIST_HEAD(&phba->rb_pend_list);
6405 
6406         phba->MBslimaddr = phba->slim_memmap_p;
6407         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6408         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6409         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6410         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6411 
6412         return 0;
6413 
6414 out_free_slim:
6415         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6416                           phba->slim2p.virt, phba->slim2p.phys);
6417 out_iounmap:
6418         iounmap(phba->ctrl_regs_memmap_p);
6419 out_iounmap_slim:
6420         iounmap(phba->slim_memmap_p);
6421 out:
6422         return error;
6423 }
6424 
6425 /**
6426  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6427  * @phba: pointer to lpfc hba data structure.
6428  *
6429  * This routine is invoked to unset the PCI device memory space for device
6430  * with SLI-3 interface spec.
6431  **/
6432 static void
6433 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6434 {
6435         struct pci_dev *pdev;
6436 
6437         /* Obtain PCI device reference */
6438         if (!phba->pcidev)
6439                 return;
6440         else
6441                 pdev = phba->pcidev;
6442 
6443         /* Free coherent DMA memory allocated */
6444         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6445                           phba->hbqslimp.virt, phba->hbqslimp.phys);
6446         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6447                           phba->slim2p.virt, phba->slim2p.phys);
6448 
6449         /* I/O memory unmap */
6450         iounmap(phba->ctrl_regs_memmap_p);
6451         iounmap(phba->slim_memmap_p);
6452 
6453         return;
6454 }
6455 
6456 /**
6457  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6458  * @phba: pointer to lpfc hba data structure.
6459  *
6460  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6461  * done and check status.
6462  *
6463  * Return 0 if successful, otherwise -ENODEV.
6464  **/
6465 int
6466 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6467 {
6468         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6469         struct lpfc_register reg_data;
6470         int i, port_error = 0;
6471         uint32_t if_type;
6472 
6473         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6474         memset(&reg_data, 0, sizeof(reg_data));
6475         if (!phba->sli4_hba.PSMPHRregaddr)
6476                 return -ENODEV;
6477 
6478         /* Wait up to 30 seconds for the SLI Port POST done and ready */
6479         for (i = 0; i < 3000; i++) {
6480                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6481                         &portsmphr_reg.word0) ||
6482                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6483                         /* Port has a fatal POST error, break out */
6484                         port_error = -ENODEV;
6485                         break;
6486                 }
6487                 if (LPFC_POST_STAGE_PORT_READY ==
6488                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6489                         break;
6490                 msleep(10);
6491         }
6492 
6493         /*
6494          * If there was a port error during POST, then don't proceed with
6495          * other register reads as the data may not be valid.  Just exit.
6496          */
6497         if (port_error) {
6498                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6499                         "1408 Port Failed POST - portsmphr=0x%x, "
6500                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6501                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6502                         portsmphr_reg.word0,
6503                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6504                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6505                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6506                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6507                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6508                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6509                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6510                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6511         } else {
6512                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6513                                 "2534 Device Info: SLIFamily=0x%x, "
6514                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6515                                 "SLIHint_2=0x%x, FT=0x%x\n",
6516                                 bf_get(lpfc_sli_intf_sli_family,
6517                                        &phba->sli4_hba.sli_intf),
6518                                 bf_get(lpfc_sli_intf_slirev,
6519                                        &phba->sli4_hba.sli_intf),
6520                                 bf_get(lpfc_sli_intf_if_type,
6521                                        &phba->sli4_hba.sli_intf),
6522                                 bf_get(lpfc_sli_intf_sli_hint1,
6523                                        &phba->sli4_hba.sli_intf),
6524                                 bf_get(lpfc_sli_intf_sli_hint2,
6525                                        &phba->sli4_hba.sli_intf),
6526                                 bf_get(lpfc_sli_intf_func_type,
6527                                        &phba->sli4_hba.sli_intf));
6528                 /*
6529                  * Check for other Port errors during the initialization
6530                  * process.  Fail the load if the port did not come up
6531                  * correctly.
6532                  */
6533                 if_type = bf_get(lpfc_sli_intf_if_type,
6534                                  &phba->sli4_hba.sli_intf);
6535                 switch (if_type) {
6536                 case LPFC_SLI_INTF_IF_TYPE_0:
6537                         phba->sli4_hba.ue_mask_lo =
6538                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6539                         phba->sli4_hba.ue_mask_hi =
6540                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6541                         uerrlo_reg.word0 =
6542                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6543                         uerrhi_reg.word0 =
6544                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6545                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6546                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6547                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6548                                                 "1422 Unrecoverable Error "
6549                                                 "Detected during POST "
6550                                                 "uerr_lo_reg=0x%x, "
6551                                                 "uerr_hi_reg=0x%x, "
6552                                                 "ue_mask_lo_reg=0x%x, "
6553                                                 "ue_mask_hi_reg=0x%x\n",
6554                                                 uerrlo_reg.word0,
6555                                                 uerrhi_reg.word0,
6556                                                 phba->sli4_hba.ue_mask_lo,
6557                                                 phba->sli4_hba.ue_mask_hi);
6558                                 port_error = -ENODEV;
6559                         }
6560                         break;
6561                 case LPFC_SLI_INTF_IF_TYPE_2:
6562                         /* Final checks.  The port status should be clean. */
6563                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6564                                 &reg_data.word0) ||
6565                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6566                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6567                                 phba->work_status[0] =
6568                                         readl(phba->sli4_hba.u.if_type2.
6569                                               ERR1regaddr);
6570                                 phba->work_status[1] =
6571                                         readl(phba->sli4_hba.u.if_type2.
6572                                               ERR2regaddr);
6573                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6574                                         "2888 Unrecoverable port error "
6575                                         "following POST: port status reg "
6576                                         "0x%x, port_smphr reg 0x%x, "
6577                                         "error 1=0x%x, error 2=0x%x\n",
6578                                         reg_data.word0,
6579                                         portsmphr_reg.word0,
6580                                         phba->work_status[0],
6581                                         phba->work_status[1]);
6582                                 port_error = -ENODEV;
6583                         }
6584                         break;
6585                 case LPFC_SLI_INTF_IF_TYPE_1:
6586                 default:
6587                         break;
6588                 }
6589         }
6590         return port_error;
6591 }
6592 
6593 /**
6594  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6595  * @phba: pointer to lpfc hba data structure.
6596  * @if_type:  The SLI4 interface type getting configured.
6597  *
6598  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6599  * memory map.
6600  **/
6601 static void
6602 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6603 {
6604         switch (if_type) {
6605         case LPFC_SLI_INTF_IF_TYPE_0:
6606                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6607                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6608                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6609                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6610                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6611                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6612                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6613                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6614                 phba->sli4_hba.SLIINTFregaddr =
6615                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6616                 break;
6617         case LPFC_SLI_INTF_IF_TYPE_2:
6618                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6619                         phba->sli4_hba.conf_regs_memmap_p +
6620                                                 LPFC_CTL_PORT_ER1_OFFSET;
6621                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6622                         phba->sli4_hba.conf_regs_memmap_p +
6623                                                 LPFC_CTL_PORT_ER2_OFFSET;
6624                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6625                         phba->sli4_hba.conf_regs_memmap_p +
6626                                                 LPFC_CTL_PORT_CTL_OFFSET;
6627                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6628                         phba->sli4_hba.conf_regs_memmap_p +
6629                                                 LPFC_CTL_PORT_STA_OFFSET;
6630                 phba->sli4_hba.SLIINTFregaddr =
6631                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6632                 phba->sli4_hba.PSMPHRregaddr =
6633                         phba->sli4_hba.conf_regs_memmap_p +
6634                                                 LPFC_CTL_PORT_SEM_OFFSET;
6635                 phba->sli4_hba.RQDBregaddr =
6636                         phba->sli4_hba.conf_regs_memmap_p +
6637                                                 LPFC_ULP0_RQ_DOORBELL;
6638                 phba->sli4_hba.WQDBregaddr =
6639                         phba->sli4_hba.conf_regs_memmap_p +
6640                                                 LPFC_ULP0_WQ_DOORBELL;
6641                 phba->sli4_hba.EQCQDBregaddr =
6642                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6643                 phba->sli4_hba.MQDBregaddr =
6644                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6645                 phba->sli4_hba.BMBXregaddr =
6646                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6647                 break;
6648         case LPFC_SLI_INTF_IF_TYPE_1:
6649         default:
6650                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6651                            "FATAL - unsupported SLI4 interface type - %d\n",
6652                            if_type);
6653                 break;
6654         }
6655 }
6656 
6657 /**
6658  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6659  * @phba: pointer to lpfc hba data structure.
6660  *
6661  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6662  * memory map.
6663  **/
6664 static void
6665 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6666 {
6667         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6668                 LPFC_SLIPORT_IF0_SMPHR;
6669         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6670                 LPFC_HST_ISR0;
6671         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6672                 LPFC_HST_IMR0;
6673         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6674                 LPFC_HST_ISCR0;
6675 }
6676 
6677 /**
6678  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6679  * @phba: pointer to lpfc hba data structure.
6680  * @vf: virtual function number
6681  *
6682  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6683  * based on the given viftual function number, @vf.
6684  *
6685  * Return 0 if successful, otherwise -ENODEV.
6686  **/
6687 static int
6688 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6689 {
6690         if (vf > LPFC_VIR_FUNC_MAX)
6691                 return -ENODEV;
6692 
6693         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6694                                 vf * LPFC_VFR_PAGE_SIZE +
6695                                         LPFC_ULP0_RQ_DOORBELL);
6696         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6697                                 vf * LPFC_VFR_PAGE_SIZE +
6698                                         LPFC_ULP0_WQ_DOORBELL);
6699         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6700                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6701         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6702                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6703         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6704                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6705         return 0;
6706 }
6707 
6708 /**
6709  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6710  * @phba: pointer to lpfc hba data structure.
6711  *
6712  * This routine is invoked to create the bootstrap mailbox
6713  * region consistent with the SLI-4 interface spec.  This
6714  * routine allocates all memory necessary to communicate
6715  * mailbox commands to the port and sets up all alignment
6716  * needs.  No locks are expected to be held when calling
6717  * this routine.
6718  *
6719  * Return codes
6720  *      0 - successful
6721  *      -ENOMEM - could not allocated memory.
6722  **/
6723 static int
6724 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6725 {
6726         uint32_t bmbx_size;
6727         struct lpfc_dmabuf *dmabuf;
6728         struct dma_address *dma_address;
6729         uint32_t pa_addr;
6730         uint64_t phys_addr;
6731 
6732         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6733         if (!dmabuf)
6734                 return -ENOMEM;
6735 
6736         /*
6737          * The bootstrap mailbox region is comprised of 2 parts
6738          * plus an alignment restriction of 16 bytes.
6739          */
6740         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6741         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
6742                                            &dmabuf->phys, GFP_KERNEL);
6743         if (!dmabuf->virt) {
6744                 kfree(dmabuf);
6745                 return -ENOMEM;
6746         }
6747 
6748         /*
6749          * Initialize the bootstrap mailbox pointers now so that the register
6750          * operations are simple later.  The mailbox dma address is required
6751          * to be 16-byte aligned.  Also align the virtual memory as each
6752          * maibox is copied into the bmbx mailbox region before issuing the
6753          * command to the port.
6754          */
6755         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6756         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6757 
6758         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6759                                               LPFC_ALIGN_16_BYTE);
6760         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6761                                               LPFC_ALIGN_16_BYTE);
6762 
6763         /*
6764          * Set the high and low physical addresses now.  The SLI4 alignment
6765          * requirement is 16 bytes and the mailbox is posted to the port
6766          * as two 30-bit addresses.  The other data is a bit marking whether
6767          * the 30-bit address is the high or low address.
6768          * Upcast bmbx aphys to 64bits so shift instruction compiles
6769          * clean on 32 bit machines.
6770          */
6771         dma_address = &phba->sli4_hba.bmbx.dma_address;
6772         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6773         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6774         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6775                                            LPFC_BMBX_BIT1_ADDR_HI);
6776 
6777         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6778         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6779                                            LPFC_BMBX_BIT1_ADDR_LO);
6780         return 0;
6781 }
6782 
6783 /**
6784  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6785  * @phba: pointer to lpfc hba data structure.
6786  *
6787  * This routine is invoked to teardown the bootstrap mailbox
6788  * region and release all host resources. This routine requires
6789  * the caller to ensure all mailbox commands recovered, no
6790  * additional mailbox comands are sent, and interrupts are disabled
6791  * before calling this routine.
6792  *
6793  **/
6794 static void
6795 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6796 {
6797         dma_free_coherent(&phba->pcidev->dev,
6798                           phba->sli4_hba.bmbx.bmbx_size,
6799                           phba->sli4_hba.bmbx.dmabuf->virt,
6800                           phba->sli4_hba.bmbx.dmabuf->phys);
6801 
6802         kfree(phba->sli4_hba.bmbx.dmabuf);
6803         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6804 }
6805 
6806 /**
6807  * lpfc_sli4_read_config - Get the config parameters.
6808  * @phba: pointer to lpfc hba data structure.
6809  *
6810  * This routine is invoked to read the configuration parameters from the HBA.
6811  * The configuration parameters are used to set the base and maximum values
6812  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6813  * allocation for the port.
6814  *
6815  * Return codes
6816  *      0 - successful
6817  *      -ENOMEM - No available memory
6818  *      -EIO - The mailbox failed to complete successfully.
6819  **/
6820 int
6821 lpfc_sli4_read_config(struct lpfc_hba *phba)
6822 {
6823         LPFC_MBOXQ_t *pmb;
6824         struct lpfc_mbx_read_config *rd_config;
6825         union  lpfc_sli4_cfg_shdr *shdr;
6826         uint32_t shdr_status, shdr_add_status;
6827         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6828         struct lpfc_rsrc_desc_fcfcoe *desc;
6829         char *pdesc_0;
6830         int length, i, rc = 0, rc2;
6831 
6832         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6833         if (!pmb) {
6834                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6835                                 "2011 Unable to allocate memory for issuing "
6836                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6837                 return -ENOMEM;
6838         }
6839 
6840         lpfc_read_config(phba, pmb);
6841 
6842         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6843         if (rc != MBX_SUCCESS) {
6844                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6845                         "2012 Mailbox failed , mbxCmd x%x "
6846                         "READ_CONFIG, mbxStatus x%x\n",
6847                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6848                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6849                 rc = -EIO;
6850         } else {
6851                 rd_config = &pmb->u.mqe.un.rd_config;
6852                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6853                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6854                         phba->sli4_hba.lnk_info.lnk_tp =
6855                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6856                         phba->sli4_hba.lnk_info.lnk_no =
6857                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6858                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6859                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6860                                         phba->sli4_hba.lnk_info.lnk_tp,
6861                                         phba->sli4_hba.lnk_info.lnk_no);
6862                 } else
6863                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6864                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6865                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6866                 phba->sli4_hba.extents_in_use =
6867                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6868                 phba->sli4_hba.max_cfg_param.max_xri =
6869                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6870                 phba->sli4_hba.max_cfg_param.xri_base =
6871                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6872                 phba->sli4_hba.max_cfg_param.max_vpi =
6873                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6874                 phba->sli4_hba.max_cfg_param.vpi_base =
6875                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6876                 phba->sli4_hba.max_cfg_param.max_rpi =
6877                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6878                 phba->sli4_hba.max_cfg_param.rpi_base =
6879                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6880                 phba->sli4_hba.max_cfg_param.max_vfi =
6881                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6882                 phba->sli4_hba.max_cfg_param.vfi_base =
6883                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6884                 phba->sli4_hba.max_cfg_param.max_fcfi =
6885                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6886                 phba->sli4_hba.max_cfg_param.max_eq =
6887                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6888                 phba->sli4_hba.max_cfg_param.max_rq =
6889                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6890                 phba->sli4_hba.max_cfg_param.max_wq =
6891                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6892                 phba->sli4_hba.max_cfg_param.max_cq =
6893                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6894                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6895                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6896                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6897                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6898                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6899                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6900                 phba->max_vports = phba->max_vpi;
6901                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6902                                 "2003 cfg params Extents? %d "
6903                                 "XRI(B:%d M:%d), "
6904                                 "VPI(B:%d M:%d) "
6905                                 "VFI(B:%d M:%d) "
6906                                 "RPI(B:%d M:%d) "
6907                                 "FCFI(Count:%d)\n",
6908                                 phba->sli4_hba.extents_in_use,
6909                                 phba->sli4_hba.max_cfg_param.xri_base,
6910                                 phba->sli4_hba.max_cfg_param.max_xri,
6911                                 phba->sli4_hba.max_cfg_param.vpi_base,
6912                                 phba->sli4_hba.max_cfg_param.max_vpi,
6913                                 phba->sli4_hba.max_cfg_param.vfi_base,
6914                                 phba->sli4_hba.max_cfg_param.max_vfi,
6915                                 phba->sli4_hba.max_cfg_param.rpi_base,
6916                                 phba->sli4_hba.max_cfg_param.max_rpi,
6917                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6918         }
6919 
6920         if (rc)
6921                 goto read_cfg_out;
6922 
6923         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6924         length = phba->sli4_hba.max_cfg_param.max_xri -
6925                         lpfc_sli4_get_els_iocb_cnt(phba);
6926         if (phba->cfg_hba_queue_depth > length) {
6927                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6928                                 "3361 HBA queue depth changed from %d to %d\n",
6929                                 phba->cfg_hba_queue_depth, length);
6930                 phba->cfg_hba_queue_depth = length;
6931         }
6932 
6933         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6934             LPFC_SLI_INTF_IF_TYPE_2)
6935                 goto read_cfg_out;
6936 
6937         /* get the pf# and vf# for SLI4 if_type 2 port */
6938         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6939                   sizeof(struct lpfc_sli4_cfg_mhdr));
6940         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6941                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6942                          length, LPFC_SLI4_MBX_EMBED);
6943 
6944         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6945         shdr = (union lpfc_sli4_cfg_shdr *)
6946                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6947         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6948         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6949         if (rc2 || shdr_status || shdr_add_status) {
6950                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6951                                 "3026 Mailbox failed , mbxCmd x%x "
6952                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6953                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6954                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6955                 goto read_cfg_out;
6956         }
6957 
6958         /* search for fc_fcoe resrouce descriptor */
6959         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6960 
6961         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6962         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6963         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6964         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6965                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6966         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6967                 goto read_cfg_out;
6968 
6969         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6970                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6971                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6972                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6973                         phba->sli4_hba.iov.pf_number =
6974                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6975                         phba->sli4_hba.iov.vf_number =
6976                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6977                         break;
6978                 }
6979         }
6980 
6981         if (i < LPFC_RSRC_DESC_MAX_NUM)
6982                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6983                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6984                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6985                                 phba->sli4_hba.iov.vf_number);
6986         else
6987                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6988                                 "3028 GET_FUNCTION_CONFIG: failed to find "
6989                                 "Resrouce Descriptor:x%x\n",
6990                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
6991 
6992 read_cfg_out:
6993         mempool_free(pmb, phba->mbox_mem_pool);
6994         return rc;
6995 }
6996 
6997 /**
6998  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6999  * @phba: pointer to lpfc hba data structure.
7000  *
7001  * This routine is invoked to setup the port-side endian order when
7002  * the port if_type is 0.  This routine has no function for other
7003  * if_types.
7004  *
7005  * Return codes
7006  *      0 - successful
7007  *      -ENOMEM - No available memory
7008  *      -EIO - The mailbox failed to complete successfully.
7009  **/
7010 static int
7011 lpfc_setup_endian_order(struct lpfc_hba *phba)
7012 {
7013         LPFC_MBOXQ_t *mboxq;
7014         uint32_t if_type, rc = 0;
7015         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7016                                       HOST_ENDIAN_HIGH_WORD1};
7017 
7018         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7019         switch (if_type) {
7020         case LPFC_SLI_INTF_IF_TYPE_0:
7021                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7022                                                        GFP_KERNEL);
7023                 if (!mboxq) {
7024                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7025                                         "0492 Unable to allocate memory for "
7026                                         "issuing SLI_CONFIG_SPECIAL mailbox "
7027                                         "command\n");
7028                         return -ENOMEM;
7029                 }
7030 
7031                 /*
7032                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7033                  * two words to contain special data values and no other data.
7034                  */
7035                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7036                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7037                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7038                 if (rc != MBX_SUCCESS) {
7039                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7040                                         "0493 SLI_CONFIG_SPECIAL mailbox "
7041                                         "failed with status x%x\n",
7042                                         rc);
7043                         rc = -EIO;
7044                 }
7045                 mempool_free(mboxq, phba->mbox_mem_pool);
7046                 break;
7047         case LPFC_SLI_INTF_IF_TYPE_2:
7048         case LPFC_SLI_INTF_IF_TYPE_1:
7049         default:
7050                 break;
7051         }
7052         return rc;
7053 }
7054 
7055 /**
7056  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
7057  * @phba: pointer to lpfc hba data structure.
7058  *
7059  * This routine is invoked to check the user settable queue counts for EQs and
7060  * CQs. after this routine is called the counts will be set to valid values that
7061  * adhere to the constraints of the system's interrupt vectors and the port's
7062  * queue resources.
7063  *
7064  * Return codes
7065  *      0 - successful
7066  *      -ENOMEM - No available memory
7067  **/
7068 static int
7069 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7070 {
7071         int cfg_fcp_io_channel;
7072         uint32_t cpu;
7073         uint32_t i = 0;
7074         int fof_vectors = phba->cfg_fof ? 1 : 0;
7075 
7076         /*
7077          * Sanity check for configured queue parameters against the run-time
7078          * device parameters
7079          */
7080 
7081         /* Sanity check on HBA EQ parameters */
7082         cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
7083 
7084         /* It doesn't make sense to have more io channels then online CPUs */
7085         for_each_present_cpu(cpu) {
7086                 if (cpu_online(cpu))
7087                         i++;
7088         }
7089         phba->sli4_hba.num_online_cpu = i;
7090         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7091         phba->sli4_hba.curr_disp_cpu = 0;
7092 
7093         if (i < cfg_fcp_io_channel) {
7094                 lpfc_printf_log(phba,
7095                                 KERN_ERR, LOG_INIT,
7096                                 "3188 Reducing IO channels to match number of "
7097                                 "online CPUs: from %d to %d\n",
7098                                 cfg_fcp_io_channel, i);
7099                 cfg_fcp_io_channel = i;
7100         }
7101 
7102         if (cfg_fcp_io_channel + fof_vectors >
7103             phba->sli4_hba.max_cfg_param.max_eq) {
7104                 if (phba->sli4_hba.max_cfg_param.max_eq <
7105                     LPFC_FCP_IO_CHAN_MIN) {
7106                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7107                                         "2574 Not enough EQs (%d) from the "
7108                                         "pci function for supporting FCP "
7109                                         "EQs (%d)\n",
7110                                         phba->sli4_hba.max_cfg_param.max_eq,
7111                                         phba->cfg_fcp_io_channel);
7112                         goto out_error;
7113                 }
7114                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7115                                 "2575 Reducing IO channels to match number of "
7116                                 "available EQs: from %d to %d\n",
7117                                 cfg_fcp_io_channel,
7118                                 phba->sli4_hba.max_cfg_param.max_eq);
7119                 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7120                         fof_vectors;
7121         }
7122 
7123         /* The actual number of FCP event queues adopted */
7124         phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7125 
7126         /* Get EQ depth from module parameter, fake the default for now */
7127         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7128         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7129 
7130         /* Get CQ depth from module parameter, fake the default for now */
7131         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7132         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7133 
7134         return 0;
7135 out_error:
7136         return -ENOMEM;
7137 }
7138 
7139 /**
7140  * lpfc_sli4_queue_create - Create all the SLI4 queues
7141  * @phba: pointer to lpfc hba data structure.
7142  *
7143  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7144  * operation. For each SLI4 queue type, the parameters such as queue entry
7145  * count (queue depth) shall be taken from the module parameter. For now,
7146  * we just use some constant number as place holder.
7147  *
7148  * Return codes
7149  *      0 - successful
7150  *      -ENOMEM - No availble memory
7151  *      -EIO - The mailbox failed to complete successfully.
7152  **/
7153 int
7154 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7155 {
7156         struct lpfc_queue *qdesc;
7157         int idx;
7158 
7159         /*
7160          * Create HBA Record arrays.
7161          */
7162         if (!phba->cfg_fcp_io_channel)
7163                 return -ERANGE;
7164 
7165         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7166         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7167         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7168         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7169         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7170         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7171 
7172         phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
7173                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7174         if (!phba->sli4_hba.hba_eq) {
7175                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7176                         "2576 Failed allocate memory for "
7177                         "fast-path EQ record array\n");
7178                 goto out_error;
7179         }
7180 
7181         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7182                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7183         if (!phba->sli4_hba.fcp_cq) {
7184                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7185                                 "2577 Failed allocate memory for fast-path "
7186                                 "CQ record array\n");
7187                 goto out_error;
7188         }
7189 
7190         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7191                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7192         if (!phba->sli4_hba.fcp_wq) {
7193                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7194                                 "2578 Failed allocate memory for fast-path "
7195                                 "WQ record array\n");
7196                 goto out_error;
7197         }
7198 
7199         /*
7200          * Since the first EQ can have multiple CQs associated with it,
7201          * this array is used to quickly see if we have a FCP fast-path
7202          * CQ match.
7203          */
7204         phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7205                                          phba->cfg_fcp_io_channel), GFP_KERNEL);
7206         if (!phba->sli4_hba.fcp_cq_map) {
7207                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7208                                 "2545 Failed allocate memory for fast-path "
7209                                 "CQ map\n");
7210                 goto out_error;
7211         }
7212 
7213         /*
7214          * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
7215          * how many EQs to create.
7216          */
7217         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7218 
7219                 /* Create EQs */
7220                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7221                                               phba->sli4_hba.eq_ecount);
7222                 if (!qdesc) {
7223                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7224                                         "0497 Failed allocate EQ (%d)\n", idx);
7225                         goto out_error;
7226                 }
7227                 phba->sli4_hba.hba_eq[idx] = qdesc;
7228 
7229                 /* Create Fast Path FCP CQs */
7230                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7231                                               phba->sli4_hba.cq_ecount);
7232                 if (!qdesc) {
7233                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7234                                         "0499 Failed allocate fast-path FCP "
7235                                         "CQ (%d)\n", idx);
7236                         goto out_error;
7237                 }
7238                 phba->sli4_hba.fcp_cq[idx] = qdesc;
7239 
7240                 /* Create Fast Path FCP WQs */
7241                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7242                                               phba->sli4_hba.wq_ecount);
7243                 if (!qdesc) {
7244                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7245                                         "0503 Failed allocate fast-path FCP "
7246                                         "WQ (%d)\n", idx);
7247                         goto out_error;
7248                 }
7249                 phba->sli4_hba.fcp_wq[idx] = qdesc;
7250         }
7251 
7252 
7253         /*
7254          * Create Slow Path Completion Queues (CQs)
7255          */
7256 
7257         /* Create slow-path Mailbox Command Complete Queue */
7258         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7259                                       phba->sli4_hba.cq_ecount);
7260         if (!qdesc) {
7261                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7262                                 "0500 Failed allocate slow-path mailbox CQ\n");
7263                 goto out_error;
7264         }
7265         phba->sli4_hba.mbx_cq = qdesc;
7266 
7267         /* Create slow-path ELS Complete Queue */
7268         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7269                                       phba->sli4_hba.cq_ecount);
7270         if (!qdesc) {
7271                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7272                                 "0501 Failed allocate slow-path ELS CQ\n");
7273                 goto out_error;
7274         }
7275         phba->sli4_hba.els_cq = qdesc;
7276 
7277 
7278         /*
7279          * Create Slow Path Work Queues (WQs)
7280          */
7281 
7282         /* Create Mailbox Command Queue */
7283 
7284         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7285                                       phba->sli4_hba.mq_ecount);
7286         if (!qdesc) {
7287                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7288                                 "0505 Failed allocate slow-path MQ\n");
7289                 goto out_error;
7290         }
7291         phba->sli4_hba.mbx_wq = qdesc;
7292 
7293         /*
7294          * Create ELS Work Queues
7295          */
7296 
7297         /* Create slow-path ELS Work Queue */
7298         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7299                                       phba->sli4_hba.wq_ecount);
7300         if (!qdesc) {
7301                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7302                                 "0504 Failed allocate slow-path ELS WQ\n");
7303                 goto out_error;
7304         }
7305         phba->sli4_hba.els_wq = qdesc;
7306 
7307         /*
7308          * Create Receive Queue (RQ)
7309          */
7310 
7311         /* Create Receive Queue for header */
7312         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7313                                       phba->sli4_hba.rq_ecount);
7314         if (!qdesc) {
7315                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7316                                 "0506 Failed allocate receive HRQ\n");
7317                 goto out_error;
7318         }
7319         phba->sli4_hba.hdr_rq = qdesc;
7320 
7321         /* Create Receive Queue for data */
7322         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7323                                       phba->sli4_hba.rq_ecount);
7324         if (!qdesc) {
7325                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7326                                 "0507 Failed allocate receive DRQ\n");
7327                 goto out_error;
7328         }
7329         phba->sli4_hba.dat_rq = qdesc;
7330 
7331         /* Create the Queues needed for Flash Optimized Fabric operations */
7332         if (phba->cfg_fof)
7333                 lpfc_fof_queue_create(phba);
7334         return 0;
7335 
7336 out_error:
7337         lpfc_sli4_queue_destroy(phba);
7338         return -ENOMEM;
7339 }
7340 
7341 /**
7342  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7343  * @phba: pointer to lpfc hba data structure.
7344  *
7345  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7346  * operation.
7347  *
7348  * Return codes
7349  *      0 - successful
7350  *      -ENOMEM - No available memory
7351  *      -EIO - The mailbox failed to complete successfully.
7352  **/
7353 void
7354 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7355 {
7356         int idx;
7357 
7358         if (phba->cfg_fof)
7359                 lpfc_fof_queue_destroy(phba);
7360 
7361         if (phba->sli4_hba.hba_eq != NULL) {
7362                 /* Release HBA event queue */
7363                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7364                         if (phba->sli4_hba.hba_eq[idx] != NULL) {
7365                                 lpfc_sli4_queue_free(
7366                                         phba->sli4_hba.hba_eq[idx]);
7367                                 phba->sli4_hba.hba_eq[idx] = NULL;
7368                         }
7369                 }
7370                 kfree(phba->sli4_hba.hba_eq);
7371                 phba->sli4_hba.hba_eq = NULL;
7372         }
7373 
7374         if (phba->sli4_hba.fcp_cq != NULL) {
7375                 /* Release FCP completion queue */
7376                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7377                         if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7378                                 lpfc_sli4_queue_free(
7379                                         phba->sli4_hba.fcp_cq[idx]);
7380                                 phba->sli4_hba.fcp_cq[idx] = NULL;
7381                         }
7382                 }
7383                 kfree(phba->sli4_hba.fcp_cq);
7384                 phba->sli4_hba.fcp_cq = NULL;
7385         }
7386 
7387         if (phba->sli4_hba.fcp_wq != NULL) {
7388                 /* Release FCP work queue */
7389                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7390                         if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7391                                 lpfc_sli4_queue_free(
7392                                         phba->sli4_hba.fcp_wq[idx]);
7393                                 phba->sli4_hba.fcp_wq[idx] = NULL;
7394                         }
7395                 }
7396                 kfree(phba->sli4_hba.fcp_wq);
7397                 phba->sli4_hba.fcp_wq = NULL;
7398         }
7399 
7400         /* Release FCP CQ mapping array */
7401         if (phba->sli4_hba.fcp_cq_map != NULL) {
7402                 kfree(phba->sli4_hba.fcp_cq_map);
7403                 phba->sli4_hba.fcp_cq_map = NULL;
7404         }
7405 
7406         /* Release mailbox command work queue */
7407         if (phba->sli4_hba.mbx_wq != NULL) {
7408                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7409                 phba->sli4_hba.mbx_wq = NULL;
7410         }
7411 
7412         /* Release ELS work queue */
7413         if (phba->sli4_hba.els_wq != NULL) {
7414                 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7415                 phba->sli4_hba.els_wq = NULL;
7416         }
7417 
7418         /* Release unsolicited receive queue */
7419         if (phba->sli4_hba.hdr_rq != NULL) {
7420                 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7421                 phba->sli4_hba.hdr_rq = NULL;
7422         }
7423         if (phba->sli4_hba.dat_rq != NULL) {
7424                 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7425                 phba->sli4_hba.dat_rq = NULL;
7426         }
7427 
7428         /* Release ELS complete queue */
7429         if (phba->sli4_hba.els_cq != NULL) {
7430                 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7431                 phba->sli4_hba.els_cq = NULL;
7432         }
7433 
7434         /* Release mailbox command complete queue */
7435         if (phba->sli4_hba.mbx_cq != NULL) {
7436                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7437                 phba->sli4_hba.mbx_cq = NULL;
7438         }
7439 
7440         return;
7441 }
7442 
7443 /**
7444  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7445  * @phba: pointer to lpfc hba data structure.
7446  *
7447  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7448  * operation.
7449  *
7450  * Return codes
7451  *      0 - successful
7452  *      -ENOMEM - No available memory
7453  *      -EIO - The mailbox failed to complete successfully.
7454  **/
7455 int
7456 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7457 {
7458         struct lpfc_sli *psli = &phba->sli;
7459         struct lpfc_sli_ring *pring;
7460         int rc = -ENOMEM;
7461         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7462         int fcp_cq_index = 0;
7463         uint32_t shdr_status, shdr_add_status;
7464         union lpfc_sli4_cfg_shdr *shdr;
7465         LPFC_MBOXQ_t *mboxq;
7466         uint32_t length;
7467 
7468         /* Check for dual-ULP support */
7469         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7470         if (!mboxq) {
7471                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7472                                 "3249 Unable to allocate memory for "