lpfc_init.c revision b92938b41ee84b83347b62baa6daa0d06a742e94
1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2010 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/kthread.h> 28#include <linux/pci.h> 29#include <linux/spinlock.h> 30#include <linux/ctype.h> 31#include <linux/aer.h> 32#include <linux/slab.h> 33 34#include <scsi/scsi.h> 35#include <scsi/scsi_device.h> 36#include <scsi/scsi_host.h> 37#include <scsi/scsi_transport_fc.h> 38 39#include "lpfc_hw4.h" 40#include "lpfc_hw.h" 41#include "lpfc_sli.h" 42#include "lpfc_sli4.h" 43#include "lpfc_nl.h" 44#include "lpfc_disc.h" 45#include "lpfc_scsi.h" 46#include "lpfc.h" 47#include "lpfc_logmsg.h" 48#include "lpfc_crtn.h" 49#include "lpfc_vport.h" 50#include "lpfc_version.h" 51 52char *_dump_buf_data; 53unsigned long _dump_buf_data_order; 54char *_dump_buf_dif; 55unsigned long _dump_buf_dif_order; 56spinlock_t _dump_buf_lock; 57 58static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 59static int lpfc_post_rcv_buf(struct lpfc_hba *); 60static int lpfc_sli4_queue_create(struct lpfc_hba *); 61static void lpfc_sli4_queue_destroy(struct lpfc_hba *); 62static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 63static int lpfc_setup_endian_order(struct lpfc_hba *); 64static int lpfc_sli4_read_config(struct lpfc_hba *); 65static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 66static void lpfc_free_sgl_list(struct lpfc_hba *); 67static int lpfc_init_sgl_list(struct lpfc_hba *); 68static int lpfc_init_active_sgl_array(struct lpfc_hba *); 69static void lpfc_free_active_sgl(struct lpfc_hba *); 70static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 71static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 72static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 73static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 74static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 75 76static struct scsi_transport_template *lpfc_transport_template = NULL; 77static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 78static DEFINE_IDR(lpfc_hba_index); 79 80/** 81 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 82 * @phba: pointer to lpfc hba data structure. 83 * 84 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 85 * mailbox command. It retrieves the revision information from the HBA and 86 * collects the Vital Product Data (VPD) about the HBA for preparing the 87 * configuration of the HBA. 88 * 89 * Return codes: 90 * 0 - success. 91 * -ERESTART - requests the SLI layer to reset the HBA and try again. 92 * Any other value - indicates an error. 93 **/ 94int 95lpfc_config_port_prep(struct lpfc_hba *phba) 96{ 97 lpfc_vpd_t *vp = &phba->vpd; 98 int i = 0, rc; 99 LPFC_MBOXQ_t *pmb; 100 MAILBOX_t *mb; 101 char *lpfc_vpd_data = NULL; 102 uint16_t offset = 0; 103 static char licensed[56] = 104 "key unlock for use with gnu public licensed code only\0"; 105 static int init_key = 1; 106 107 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 108 if (!pmb) { 109 phba->link_state = LPFC_HBA_ERROR; 110 return -ENOMEM; 111 } 112 113 mb = &pmb->u.mb; 114 phba->link_state = LPFC_INIT_MBX_CMDS; 115 116 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 117 if (init_key) { 118 uint32_t *ptext = (uint32_t *) licensed; 119 120 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 121 *ptext = cpu_to_be32(*ptext); 122 init_key = 0; 123 } 124 125 lpfc_read_nv(phba, pmb); 126 memset((char*)mb->un.varRDnvp.rsvd3, 0, 127 sizeof (mb->un.varRDnvp.rsvd3)); 128 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 129 sizeof (licensed)); 130 131 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 132 133 if (rc != MBX_SUCCESS) { 134 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 135 "0324 Config Port initialization " 136 "error, mbxCmd x%x READ_NVPARM, " 137 "mbxStatus x%x\n", 138 mb->mbxCommand, mb->mbxStatus); 139 mempool_free(pmb, phba->mbox_mem_pool); 140 return -ERESTART; 141 } 142 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 143 sizeof(phba->wwnn)); 144 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 145 sizeof(phba->wwpn)); 146 } 147 148 phba->sli3_options = 0x0; 149 150 /* Setup and issue mailbox READ REV command */ 151 lpfc_read_rev(phba, pmb); 152 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 153 if (rc != MBX_SUCCESS) { 154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 155 "0439 Adapter failed to init, mbxCmd x%x " 156 "READ_REV, mbxStatus x%x\n", 157 mb->mbxCommand, mb->mbxStatus); 158 mempool_free( pmb, phba->mbox_mem_pool); 159 return -ERESTART; 160 } 161 162 163 /* 164 * The value of rr must be 1 since the driver set the cv field to 1. 165 * This setting requires the FW to set all revision fields. 166 */ 167 if (mb->un.varRdRev.rr == 0) { 168 vp->rev.rBit = 0; 169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 170 "0440 Adapter failed to init, READ_REV has " 171 "missing revision information.\n"); 172 mempool_free(pmb, phba->mbox_mem_pool); 173 return -ERESTART; 174 } 175 176 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 177 mempool_free(pmb, phba->mbox_mem_pool); 178 return -EINVAL; 179 } 180 181 /* Save information as VPD data */ 182 vp->rev.rBit = 1; 183 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 184 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 185 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 186 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 187 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 188 vp->rev.biuRev = mb->un.varRdRev.biuRev; 189 vp->rev.smRev = mb->un.varRdRev.smRev; 190 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 191 vp->rev.endecRev = mb->un.varRdRev.endecRev; 192 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 193 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 194 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 195 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 196 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 197 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 198 199 /* If the sli feature level is less then 9, we must 200 * tear down all RPIs and VPIs on link down if NPIV 201 * is enabled. 202 */ 203 if (vp->rev.feaLevelHigh < 9) 204 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 205 206 if (lpfc_is_LC_HBA(phba->pcidev->device)) 207 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 208 sizeof (phba->RandomData)); 209 210 /* Get adapter VPD information */ 211 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 212 if (!lpfc_vpd_data) 213 goto out_free_mbox; 214 215 do { 216 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 217 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 218 219 if (rc != MBX_SUCCESS) { 220 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 221 "0441 VPD not present on adapter, " 222 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 223 mb->mbxCommand, mb->mbxStatus); 224 mb->un.varDmp.word_cnt = 0; 225 } 226 /* dump mem may return a zero when finished or we got a 227 * mailbox error, either way we are done. 228 */ 229 if (mb->un.varDmp.word_cnt == 0) 230 break; 231 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 232 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 233 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 234 lpfc_vpd_data + offset, 235 mb->un.varDmp.word_cnt); 236 offset += mb->un.varDmp.word_cnt; 237 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 238 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 239 240 kfree(lpfc_vpd_data); 241out_free_mbox: 242 mempool_free(pmb, phba->mbox_mem_pool); 243 return 0; 244} 245 246/** 247 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 248 * @phba: pointer to lpfc hba data structure. 249 * @pmboxq: pointer to the driver internal queue element for mailbox command. 250 * 251 * This is the completion handler for driver's configuring asynchronous event 252 * mailbox command to the device. If the mailbox command returns successfully, 253 * it will set internal async event support flag to 1; otherwise, it will 254 * set internal async event support flag to 0. 255 **/ 256static void 257lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 258{ 259 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 260 phba->temp_sensor_support = 1; 261 else 262 phba->temp_sensor_support = 0; 263 mempool_free(pmboxq, phba->mbox_mem_pool); 264 return; 265} 266 267/** 268 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 269 * @phba: pointer to lpfc hba data structure. 270 * @pmboxq: pointer to the driver internal queue element for mailbox command. 271 * 272 * This is the completion handler for dump mailbox command for getting 273 * wake up parameters. When this command complete, the response contain 274 * Option rom version of the HBA. This function translate the version number 275 * into a human readable string and store it in OptionROMVersion. 276 **/ 277static void 278lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 279{ 280 struct prog_id *prg; 281 uint32_t prog_id_word; 282 char dist = ' '; 283 /* character array used for decoding dist type. */ 284 char dist_char[] = "nabx"; 285 286 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 287 mempool_free(pmboxq, phba->mbox_mem_pool); 288 return; 289 } 290 291 prg = (struct prog_id *) &prog_id_word; 292 293 /* word 7 contain option rom version */ 294 prog_id_word = pmboxq->u.mb.un.varWords[7]; 295 296 /* Decode the Option rom version word to a readable string */ 297 if (prg->dist < 4) 298 dist = dist_char[prg->dist]; 299 300 if ((prg->dist == 3) && (prg->num == 0)) 301 sprintf(phba->OptionROMVersion, "%d.%d%d", 302 prg->ver, prg->rev, prg->lev); 303 else 304 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 305 prg->ver, prg->rev, prg->lev, 306 dist, prg->num); 307 mempool_free(pmboxq, phba->mbox_mem_pool); 308 return; 309} 310 311/** 312 * lpfc_config_port_post - Perform lpfc initialization after config port 313 * @phba: pointer to lpfc hba data structure. 314 * 315 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 316 * command call. It performs all internal resource and state setups on the 317 * port: post IOCB buffers, enable appropriate host interrupt attentions, 318 * ELS ring timers, etc. 319 * 320 * Return codes 321 * 0 - success. 322 * Any other value - error. 323 **/ 324int 325lpfc_config_port_post(struct lpfc_hba *phba) 326{ 327 struct lpfc_vport *vport = phba->pport; 328 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 329 LPFC_MBOXQ_t *pmb; 330 MAILBOX_t *mb; 331 struct lpfc_dmabuf *mp; 332 struct lpfc_sli *psli = &phba->sli; 333 uint32_t status, timeout; 334 int i, j; 335 int rc; 336 337 spin_lock_irq(&phba->hbalock); 338 /* 339 * If the Config port completed correctly the HBA is not 340 * over heated any more. 341 */ 342 if (phba->over_temp_state == HBA_OVER_TEMP) 343 phba->over_temp_state = HBA_NORMAL_TEMP; 344 spin_unlock_irq(&phba->hbalock); 345 346 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 347 if (!pmb) { 348 phba->link_state = LPFC_HBA_ERROR; 349 return -ENOMEM; 350 } 351 mb = &pmb->u.mb; 352 353 /* Get login parameters for NID. */ 354 rc = lpfc_read_sparam(phba, pmb, 0); 355 if (rc) { 356 mempool_free(pmb, phba->mbox_mem_pool); 357 return -ENOMEM; 358 } 359 360 pmb->vport = vport; 361 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 362 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 363 "0448 Adapter failed init, mbxCmd x%x " 364 "READ_SPARM mbxStatus x%x\n", 365 mb->mbxCommand, mb->mbxStatus); 366 phba->link_state = LPFC_HBA_ERROR; 367 mp = (struct lpfc_dmabuf *) pmb->context1; 368 mempool_free(pmb, phba->mbox_mem_pool); 369 lpfc_mbuf_free(phba, mp->virt, mp->phys); 370 kfree(mp); 371 return -EIO; 372 } 373 374 mp = (struct lpfc_dmabuf *) pmb->context1; 375 376 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 377 lpfc_mbuf_free(phba, mp->virt, mp->phys); 378 kfree(mp); 379 pmb->context1 = NULL; 380 381 if (phba->cfg_soft_wwnn) 382 u64_to_wwn(phba->cfg_soft_wwnn, 383 vport->fc_sparam.nodeName.u.wwn); 384 if (phba->cfg_soft_wwpn) 385 u64_to_wwn(phba->cfg_soft_wwpn, 386 vport->fc_sparam.portName.u.wwn); 387 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 388 sizeof (struct lpfc_name)); 389 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 390 sizeof (struct lpfc_name)); 391 392 /* Update the fc_host data structures with new wwn. */ 393 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 394 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 395 fc_host_max_npiv_vports(shost) = phba->max_vpi; 396 397 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 398 /* This should be consolidated into parse_vpd ? - mr */ 399 if (phba->SerialNumber[0] == 0) { 400 uint8_t *outptr; 401 402 outptr = &vport->fc_nodename.u.s.IEEE[0]; 403 for (i = 0; i < 12; i++) { 404 status = *outptr++; 405 j = ((status & 0xf0) >> 4); 406 if (j <= 9) 407 phba->SerialNumber[i] = 408 (char)((uint8_t) 0x30 + (uint8_t) j); 409 else 410 phba->SerialNumber[i] = 411 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 412 i++; 413 j = (status & 0xf); 414 if (j <= 9) 415 phba->SerialNumber[i] = 416 (char)((uint8_t) 0x30 + (uint8_t) j); 417 else 418 phba->SerialNumber[i] = 419 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 420 } 421 } 422 423 lpfc_read_config(phba, pmb); 424 pmb->vport = vport; 425 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 426 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 427 "0453 Adapter failed to init, mbxCmd x%x " 428 "READ_CONFIG, mbxStatus x%x\n", 429 mb->mbxCommand, mb->mbxStatus); 430 phba->link_state = LPFC_HBA_ERROR; 431 mempool_free( pmb, phba->mbox_mem_pool); 432 return -EIO; 433 } 434 435 /* Check if the port is disabled */ 436 lpfc_sli_read_link_ste(phba); 437 438 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 439 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 440 phba->cfg_hba_queue_depth = 441 (mb->un.varRdConfig.max_xri + 1) - 442 lpfc_sli4_get_els_iocb_cnt(phba); 443 444 phba->lmt = mb->un.varRdConfig.lmt; 445 446 /* Get the default values for Model Name and Description */ 447 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 448 449 if ((phba->cfg_link_speed > LINK_SPEED_10G) 450 || ((phba->cfg_link_speed == LINK_SPEED_1G) 451 && !(phba->lmt & LMT_1Gb)) 452 || ((phba->cfg_link_speed == LINK_SPEED_2G) 453 && !(phba->lmt & LMT_2Gb)) 454 || ((phba->cfg_link_speed == LINK_SPEED_4G) 455 && !(phba->lmt & LMT_4Gb)) 456 || ((phba->cfg_link_speed == LINK_SPEED_8G) 457 && !(phba->lmt & LMT_8Gb)) 458 || ((phba->cfg_link_speed == LINK_SPEED_10G) 459 && !(phba->lmt & LMT_10Gb))) { 460 /* Reset link speed to auto */ 461 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT, 462 "1302 Invalid speed for this board: " 463 "Reset link speed to auto: x%x\n", 464 phba->cfg_link_speed); 465 phba->cfg_link_speed = LINK_SPEED_AUTO; 466 } 467 468 phba->link_state = LPFC_LINK_DOWN; 469 470 /* Only process IOCBs on ELS ring till hba_state is READY */ 471 if (psli->ring[psli->extra_ring].cmdringaddr) 472 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 473 if (psli->ring[psli->fcp_ring].cmdringaddr) 474 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 475 if (psli->ring[psli->next_ring].cmdringaddr) 476 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 477 478 /* Post receive buffers for desired rings */ 479 if (phba->sli_rev != 3) 480 lpfc_post_rcv_buf(phba); 481 482 /* 483 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 484 */ 485 if (phba->intr_type == MSIX) { 486 rc = lpfc_config_msi(phba, pmb); 487 if (rc) { 488 mempool_free(pmb, phba->mbox_mem_pool); 489 return -EIO; 490 } 491 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 492 if (rc != MBX_SUCCESS) { 493 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 494 "0352 Config MSI mailbox command " 495 "failed, mbxCmd x%x, mbxStatus x%x\n", 496 pmb->u.mb.mbxCommand, 497 pmb->u.mb.mbxStatus); 498 mempool_free(pmb, phba->mbox_mem_pool); 499 return -EIO; 500 } 501 } 502 503 spin_lock_irq(&phba->hbalock); 504 /* Initialize ERATT handling flag */ 505 phba->hba_flag &= ~HBA_ERATT_HANDLED; 506 507 /* Enable appropriate host interrupts */ 508 status = readl(phba->HCregaddr); 509 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 510 if (psli->num_rings > 0) 511 status |= HC_R0INT_ENA; 512 if (psli->num_rings > 1) 513 status |= HC_R1INT_ENA; 514 if (psli->num_rings > 2) 515 status |= HC_R2INT_ENA; 516 if (psli->num_rings > 3) 517 status |= HC_R3INT_ENA; 518 519 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 520 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 521 status &= ~(HC_R0INT_ENA); 522 523 writel(status, phba->HCregaddr); 524 readl(phba->HCregaddr); /* flush */ 525 spin_unlock_irq(&phba->hbalock); 526 527 /* Set up ring-0 (ELS) timer */ 528 timeout = phba->fc_ratov * 2; 529 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 530 /* Set up heart beat (HB) timer */ 531 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 532 phba->hb_outstanding = 0; 533 phba->last_completion_time = jiffies; 534 /* Set up error attention (ERATT) polling timer */ 535 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 536 537 if (phba->hba_flag & LINK_DISABLED) { 538 lpfc_printf_log(phba, 539 KERN_ERR, LOG_INIT, 540 "2598 Adapter Link is disabled.\n"); 541 lpfc_down_link(phba, pmb); 542 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 543 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 544 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 545 lpfc_printf_log(phba, 546 KERN_ERR, LOG_INIT, 547 "2599 Adapter failed to issue DOWN_LINK" 548 " mbox command rc 0x%x\n", rc); 549 550 mempool_free(pmb, phba->mbox_mem_pool); 551 return -EIO; 552 } 553 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 554 lpfc_init_link(phba, pmb, phba->cfg_topology, 555 phba->cfg_link_speed); 556 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 557 lpfc_set_loopback_flag(phba); 558 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 559 if (rc != MBX_SUCCESS) { 560 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 561 "0454 Adapter failed to init, mbxCmd x%x " 562 "INIT_LINK, mbxStatus x%x\n", 563 mb->mbxCommand, mb->mbxStatus); 564 565 /* Clear all interrupt enable conditions */ 566 writel(0, phba->HCregaddr); 567 readl(phba->HCregaddr); /* flush */ 568 /* Clear all pending interrupts */ 569 writel(0xffffffff, phba->HAregaddr); 570 readl(phba->HAregaddr); /* flush */ 571 572 phba->link_state = LPFC_HBA_ERROR; 573 if (rc != MBX_BUSY) 574 mempool_free(pmb, phba->mbox_mem_pool); 575 return -EIO; 576 } 577 } 578 /* MBOX buffer will be freed in mbox compl */ 579 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 580 if (!pmb) { 581 phba->link_state = LPFC_HBA_ERROR; 582 return -ENOMEM; 583 } 584 585 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 586 pmb->mbox_cmpl = lpfc_config_async_cmpl; 587 pmb->vport = phba->pport; 588 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 589 590 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 591 lpfc_printf_log(phba, 592 KERN_ERR, 593 LOG_INIT, 594 "0456 Adapter failed to issue " 595 "ASYNCEVT_ENABLE mbox status x%x\n", 596 rc); 597 mempool_free(pmb, phba->mbox_mem_pool); 598 } 599 600 /* Get Option rom version */ 601 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 602 if (!pmb) { 603 phba->link_state = LPFC_HBA_ERROR; 604 return -ENOMEM; 605 } 606 607 lpfc_dump_wakeup_param(phba, pmb); 608 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 609 pmb->vport = phba->pport; 610 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 611 612 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 613 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 614 "to get Option ROM version status x%x\n", rc); 615 mempool_free(pmb, phba->mbox_mem_pool); 616 } 617 618 return 0; 619} 620 621/** 622 * lpfc_hba_init_link - Initialize the FC link 623 * @phba: pointer to lpfc hba data structure. 624 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 625 * 626 * This routine will issue the INIT_LINK mailbox command call. 627 * It is available to other drivers through the lpfc_hba data 628 * structure for use as a delayed link up mechanism with the 629 * module parameter lpfc_suppress_link_up. 630 * 631 * Return code 632 * 0 - success 633 * Any other value - error 634 **/ 635int 636lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 637{ 638 struct lpfc_vport *vport = phba->pport; 639 LPFC_MBOXQ_t *pmb; 640 MAILBOX_t *mb; 641 int rc; 642 643 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 644 if (!pmb) { 645 phba->link_state = LPFC_HBA_ERROR; 646 return -ENOMEM; 647 } 648 mb = &pmb->u.mb; 649 pmb->vport = vport; 650 651 lpfc_init_link(phba, pmb, phba->cfg_topology, 652 phba->cfg_link_speed); 653 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 654 lpfc_set_loopback_flag(phba); 655 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 656 if (rc != MBX_SUCCESS) { 657 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 658 "0498 Adapter failed to init, mbxCmd x%x " 659 "INIT_LINK, mbxStatus x%x\n", 660 mb->mbxCommand, mb->mbxStatus); 661 /* Clear all interrupt enable conditions */ 662 writel(0, phba->HCregaddr); 663 readl(phba->HCregaddr); /* flush */ 664 /* Clear all pending interrupts */ 665 writel(0xffffffff, phba->HAregaddr); 666 readl(phba->HAregaddr); /* flush */ 667 phba->link_state = LPFC_HBA_ERROR; 668 if (rc != MBX_BUSY || flag == MBX_POLL) 669 mempool_free(pmb, phba->mbox_mem_pool); 670 return -EIO; 671 } 672 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 673 if (flag == MBX_POLL) 674 mempool_free(pmb, phba->mbox_mem_pool); 675 676 return 0; 677} 678 679/** 680 * lpfc_hba_down_link - this routine downs the FC link 681 * @phba: pointer to lpfc hba data structure. 682 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 683 * 684 * This routine will issue the DOWN_LINK mailbox command call. 685 * It is available to other drivers through the lpfc_hba data 686 * structure for use to stop the link. 687 * 688 * Return code 689 * 0 - success 690 * Any other value - error 691 **/ 692int 693lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 694{ 695 LPFC_MBOXQ_t *pmb; 696 int rc; 697 698 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 699 if (!pmb) { 700 phba->link_state = LPFC_HBA_ERROR; 701 return -ENOMEM; 702 } 703 704 lpfc_printf_log(phba, 705 KERN_ERR, LOG_INIT, 706 "0491 Adapter Link is disabled.\n"); 707 lpfc_down_link(phba, pmb); 708 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 709 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 710 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 711 lpfc_printf_log(phba, 712 KERN_ERR, LOG_INIT, 713 "2522 Adapter failed to issue DOWN_LINK" 714 " mbox command rc 0x%x\n", rc); 715 716 mempool_free(pmb, phba->mbox_mem_pool); 717 return -EIO; 718 } 719 if (flag == MBX_POLL) 720 mempool_free(pmb, phba->mbox_mem_pool); 721 722 return 0; 723} 724 725/** 726 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 727 * @phba: pointer to lpfc HBA data structure. 728 * 729 * This routine will do LPFC uninitialization before the HBA is reset when 730 * bringing down the SLI Layer. 731 * 732 * Return codes 733 * 0 - success. 734 * Any other value - error. 735 **/ 736int 737lpfc_hba_down_prep(struct lpfc_hba *phba) 738{ 739 struct lpfc_vport **vports; 740 int i; 741 742 if (phba->sli_rev <= LPFC_SLI_REV3) { 743 /* Disable interrupts */ 744 writel(0, phba->HCregaddr); 745 readl(phba->HCregaddr); /* flush */ 746 } 747 748 if (phba->pport->load_flag & FC_UNLOADING) 749 lpfc_cleanup_discovery_resources(phba->pport); 750 else { 751 vports = lpfc_create_vport_work_array(phba); 752 if (vports != NULL) 753 for (i = 0; i <= phba->max_vports && 754 vports[i] != NULL; i++) 755 lpfc_cleanup_discovery_resources(vports[i]); 756 lpfc_destroy_vport_work_array(phba, vports); 757 } 758 return 0; 759} 760 761/** 762 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 763 * @phba: pointer to lpfc HBA data structure. 764 * 765 * This routine will do uninitialization after the HBA is reset when bring 766 * down the SLI Layer. 767 * 768 * Return codes 769 * 0 - success. 770 * Any other value - error. 771 **/ 772static int 773lpfc_hba_down_post_s3(struct lpfc_hba *phba) 774{ 775 struct lpfc_sli *psli = &phba->sli; 776 struct lpfc_sli_ring *pring; 777 struct lpfc_dmabuf *mp, *next_mp; 778 LIST_HEAD(completions); 779 int i; 780 781 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 782 lpfc_sli_hbqbuf_free_all(phba); 783 else { 784 /* Cleanup preposted buffers on the ELS ring */ 785 pring = &psli->ring[LPFC_ELS_RING]; 786 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 787 list_del(&mp->list); 788 pring->postbufq_cnt--; 789 lpfc_mbuf_free(phba, mp->virt, mp->phys); 790 kfree(mp); 791 } 792 } 793 794 spin_lock_irq(&phba->hbalock); 795 for (i = 0; i < psli->num_rings; i++) { 796 pring = &psli->ring[i]; 797 798 /* At this point in time the HBA is either reset or DOA. Either 799 * way, nothing should be on txcmplq as it will NEVER complete. 800 */ 801 list_splice_init(&pring->txcmplq, &completions); 802 pring->txcmplq_cnt = 0; 803 spin_unlock_irq(&phba->hbalock); 804 805 /* Cancel all the IOCBs from the completions list */ 806 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 807 IOERR_SLI_ABORTED); 808 809 lpfc_sli_abort_iocb_ring(phba, pring); 810 spin_lock_irq(&phba->hbalock); 811 } 812 spin_unlock_irq(&phba->hbalock); 813 814 return 0; 815} 816/** 817 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 818 * @phba: pointer to lpfc HBA data structure. 819 * 820 * This routine will do uninitialization after the HBA is reset when bring 821 * down the SLI Layer. 822 * 823 * Return codes 824 * 0 - success. 825 * Any other value - error. 826 **/ 827static int 828lpfc_hba_down_post_s4(struct lpfc_hba *phba) 829{ 830 struct lpfc_scsi_buf *psb, *psb_next; 831 LIST_HEAD(aborts); 832 int ret; 833 unsigned long iflag = 0; 834 struct lpfc_sglq *sglq_entry = NULL; 835 836 ret = lpfc_hba_down_post_s3(phba); 837 if (ret) 838 return ret; 839 /* At this point in time the HBA is either reset or DOA. Either 840 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 841 * on the lpfc_sgl_list so that it can either be freed if the 842 * driver is unloading or reposted if the driver is restarting 843 * the port. 844 */ 845 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 846 /* scsl_buf_list */ 847 /* abts_sgl_list_lock required because worker thread uses this 848 * list. 849 */ 850 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 851 list_for_each_entry(sglq_entry, 852 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 853 sglq_entry->state = SGL_FREED; 854 855 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 856 &phba->sli4_hba.lpfc_sgl_list); 857 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 858 /* abts_scsi_buf_list_lock required because worker thread uses this 859 * list. 860 */ 861 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 862 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 863 &aborts); 864 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 865 spin_unlock_irq(&phba->hbalock); 866 867 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 868 psb->pCmd = NULL; 869 psb->status = IOSTAT_SUCCESS; 870 } 871 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 872 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 873 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 874 return 0; 875} 876 877/** 878 * lpfc_hba_down_post - Wrapper func for hba down post routine 879 * @phba: pointer to lpfc HBA data structure. 880 * 881 * This routine wraps the actual SLI3 or SLI4 routine for performing 882 * uninitialization after the HBA is reset when bring down the SLI Layer. 883 * 884 * Return codes 885 * 0 - success. 886 * Any other value - error. 887 **/ 888int 889lpfc_hba_down_post(struct lpfc_hba *phba) 890{ 891 return (*phba->lpfc_hba_down_post)(phba); 892} 893 894/** 895 * lpfc_hb_timeout - The HBA-timer timeout handler 896 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 897 * 898 * This is the HBA-timer timeout handler registered to the lpfc driver. When 899 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 900 * work-port-events bitmap and the worker thread is notified. This timeout 901 * event will be used by the worker thread to invoke the actual timeout 902 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 903 * be performed in the timeout handler and the HBA timeout event bit shall 904 * be cleared by the worker thread after it has taken the event bitmap out. 905 **/ 906static void 907lpfc_hb_timeout(unsigned long ptr) 908{ 909 struct lpfc_hba *phba; 910 uint32_t tmo_posted; 911 unsigned long iflag; 912 913 phba = (struct lpfc_hba *)ptr; 914 915 /* Check for heart beat timeout conditions */ 916 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 917 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 918 if (!tmo_posted) 919 phba->pport->work_port_events |= WORKER_HB_TMO; 920 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 921 922 /* Tell the worker thread there is work to do */ 923 if (!tmo_posted) 924 lpfc_worker_wake_up(phba); 925 return; 926} 927 928/** 929 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 930 * @phba: pointer to lpfc hba data structure. 931 * @pmboxq: pointer to the driver internal queue element for mailbox command. 932 * 933 * This is the callback function to the lpfc heart-beat mailbox command. 934 * If configured, the lpfc driver issues the heart-beat mailbox command to 935 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 936 * heart-beat mailbox command is issued, the driver shall set up heart-beat 937 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 938 * heart-beat outstanding state. Once the mailbox command comes back and 939 * no error conditions detected, the heart-beat mailbox command timer is 940 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 941 * state is cleared for the next heart-beat. If the timer expired with the 942 * heart-beat outstanding state set, the driver will put the HBA offline. 943 **/ 944static void 945lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 946{ 947 unsigned long drvr_flag; 948 949 spin_lock_irqsave(&phba->hbalock, drvr_flag); 950 phba->hb_outstanding = 0; 951 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 952 953 /* Check and reset heart-beat timer is necessary */ 954 mempool_free(pmboxq, phba->mbox_mem_pool); 955 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 956 !(phba->link_state == LPFC_HBA_ERROR) && 957 !(phba->pport->load_flag & FC_UNLOADING)) 958 mod_timer(&phba->hb_tmofunc, 959 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 960 return; 961} 962 963/** 964 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 965 * @phba: pointer to lpfc hba data structure. 966 * 967 * This is the actual HBA-timer timeout handler to be invoked by the worker 968 * thread whenever the HBA timer fired and HBA-timeout event posted. This 969 * handler performs any periodic operations needed for the device. If such 970 * periodic event has already been attended to either in the interrupt handler 971 * or by processing slow-ring or fast-ring events within the HBA-timer 972 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 973 * the timer for the next timeout period. If lpfc heart-beat mailbox command 974 * is configured and there is no heart-beat mailbox command outstanding, a 975 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 976 * has been a heart-beat mailbox command outstanding, the HBA shall be put 977 * to offline. 978 **/ 979void 980lpfc_hb_timeout_handler(struct lpfc_hba *phba) 981{ 982 struct lpfc_vport **vports; 983 LPFC_MBOXQ_t *pmboxq; 984 struct lpfc_dmabuf *buf_ptr; 985 int retval, i; 986 struct lpfc_sli *psli = &phba->sli; 987 LIST_HEAD(completions); 988 989 vports = lpfc_create_vport_work_array(phba); 990 if (vports != NULL) 991 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 992 lpfc_rcv_seq_check_edtov(vports[i]); 993 lpfc_destroy_vport_work_array(phba, vports); 994 995 if ((phba->link_state == LPFC_HBA_ERROR) || 996 (phba->pport->load_flag & FC_UNLOADING) || 997 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 998 return; 999 1000 spin_lock_irq(&phba->pport->work_port_lock); 1001 1002 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 1003 jiffies)) { 1004 spin_unlock_irq(&phba->pport->work_port_lock); 1005 if (!phba->hb_outstanding) 1006 mod_timer(&phba->hb_tmofunc, 1007 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1008 else 1009 mod_timer(&phba->hb_tmofunc, 1010 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1011 return; 1012 } 1013 spin_unlock_irq(&phba->pport->work_port_lock); 1014 1015 if (phba->elsbuf_cnt && 1016 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1017 spin_lock_irq(&phba->hbalock); 1018 list_splice_init(&phba->elsbuf, &completions); 1019 phba->elsbuf_cnt = 0; 1020 phba->elsbuf_prev_cnt = 0; 1021 spin_unlock_irq(&phba->hbalock); 1022 1023 while (!list_empty(&completions)) { 1024 list_remove_head(&completions, buf_ptr, 1025 struct lpfc_dmabuf, list); 1026 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1027 kfree(buf_ptr); 1028 } 1029 } 1030 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1031 1032 /* If there is no heart beat outstanding, issue a heartbeat command */ 1033 if (phba->cfg_enable_hba_heartbeat) { 1034 if (!phba->hb_outstanding) { 1035 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 1036 if (!pmboxq) { 1037 mod_timer(&phba->hb_tmofunc, 1038 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1039 return; 1040 } 1041 1042 lpfc_heart_beat(phba, pmboxq); 1043 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1044 pmboxq->vport = phba->pport; 1045 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); 1046 1047 if (retval != MBX_BUSY && retval != MBX_SUCCESS) { 1048 mempool_free(pmboxq, phba->mbox_mem_pool); 1049 mod_timer(&phba->hb_tmofunc, 1050 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1051 return; 1052 } 1053 mod_timer(&phba->hb_tmofunc, 1054 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1055 phba->hb_outstanding = 1; 1056 return; 1057 } else { 1058 /* 1059 * If heart beat timeout called with hb_outstanding set 1060 * we need to take the HBA offline. 1061 */ 1062 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1063 "0459 Adapter heartbeat failure, " 1064 "taking this port offline.\n"); 1065 1066 spin_lock_irq(&phba->hbalock); 1067 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1068 spin_unlock_irq(&phba->hbalock); 1069 1070 lpfc_offline_prep(phba); 1071 lpfc_offline(phba); 1072 lpfc_unblock_mgmt_io(phba); 1073 phba->link_state = LPFC_HBA_ERROR; 1074 lpfc_hba_down_post(phba); 1075 } 1076 } 1077} 1078 1079/** 1080 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1081 * @phba: pointer to lpfc hba data structure. 1082 * 1083 * This routine is called to bring the HBA offline when HBA hardware error 1084 * other than Port Error 6 has been detected. 1085 **/ 1086static void 1087lpfc_offline_eratt(struct lpfc_hba *phba) 1088{ 1089 struct lpfc_sli *psli = &phba->sli; 1090 1091 spin_lock_irq(&phba->hbalock); 1092 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1093 spin_unlock_irq(&phba->hbalock); 1094 lpfc_offline_prep(phba); 1095 1096 lpfc_offline(phba); 1097 lpfc_reset_barrier(phba); 1098 spin_lock_irq(&phba->hbalock); 1099 lpfc_sli_brdreset(phba); 1100 spin_unlock_irq(&phba->hbalock); 1101 lpfc_hba_down_post(phba); 1102 lpfc_sli_brdready(phba, HS_MBRDY); 1103 lpfc_unblock_mgmt_io(phba); 1104 phba->link_state = LPFC_HBA_ERROR; 1105 return; 1106} 1107 1108/** 1109 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1110 * @phba: pointer to lpfc hba data structure. 1111 * 1112 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1113 * other than Port Error 6 has been detected. 1114 **/ 1115static void 1116lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1117{ 1118 lpfc_offline_prep(phba); 1119 lpfc_offline(phba); 1120 lpfc_sli4_brdreset(phba); 1121 lpfc_hba_down_post(phba); 1122 lpfc_sli4_post_status_check(phba); 1123 lpfc_unblock_mgmt_io(phba); 1124 phba->link_state = LPFC_HBA_ERROR; 1125} 1126 1127/** 1128 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1129 * @phba: pointer to lpfc hba data structure. 1130 * 1131 * This routine is invoked to handle the deferred HBA hardware error 1132 * conditions. This type of error is indicated by HBA by setting ER1 1133 * and another ER bit in the host status register. The driver will 1134 * wait until the ER1 bit clears before handling the error condition. 1135 **/ 1136static void 1137lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1138{ 1139 uint32_t old_host_status = phba->work_hs; 1140 struct lpfc_sli_ring *pring; 1141 struct lpfc_sli *psli = &phba->sli; 1142 1143 /* If the pci channel is offline, ignore possible errors, 1144 * since we cannot communicate with the pci card anyway. 1145 */ 1146 if (pci_channel_offline(phba->pcidev)) { 1147 spin_lock_irq(&phba->hbalock); 1148 phba->hba_flag &= ~DEFER_ERATT; 1149 spin_unlock_irq(&phba->hbalock); 1150 return; 1151 } 1152 1153 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1154 "0479 Deferred Adapter Hardware Error " 1155 "Data: x%x x%x x%x\n", 1156 phba->work_hs, 1157 phba->work_status[0], phba->work_status[1]); 1158 1159 spin_lock_irq(&phba->hbalock); 1160 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1161 spin_unlock_irq(&phba->hbalock); 1162 1163 1164 /* 1165 * Firmware stops when it triggred erratt. That could cause the I/Os 1166 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1167 * SCSI layer retry it after re-establishing link. 1168 */ 1169 pring = &psli->ring[psli->fcp_ring]; 1170 lpfc_sli_abort_iocb_ring(phba, pring); 1171 1172 /* 1173 * There was a firmware error. Take the hba offline and then 1174 * attempt to restart it. 1175 */ 1176 lpfc_offline_prep(phba); 1177 lpfc_offline(phba); 1178 1179 /* Wait for the ER1 bit to clear.*/ 1180 while (phba->work_hs & HS_FFER1) { 1181 msleep(100); 1182 phba->work_hs = readl(phba->HSregaddr); 1183 /* If driver is unloading let the worker thread continue */ 1184 if (phba->pport->load_flag & FC_UNLOADING) { 1185 phba->work_hs = 0; 1186 break; 1187 } 1188 } 1189 1190 /* 1191 * This is to ptrotect against a race condition in which 1192 * first write to the host attention register clear the 1193 * host status register. 1194 */ 1195 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1196 phba->work_hs = old_host_status & ~HS_FFER1; 1197 1198 spin_lock_irq(&phba->hbalock); 1199 phba->hba_flag &= ~DEFER_ERATT; 1200 spin_unlock_irq(&phba->hbalock); 1201 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1202 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1203} 1204 1205static void 1206lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1207{ 1208 struct lpfc_board_event_header board_event; 1209 struct Scsi_Host *shost; 1210 1211 board_event.event_type = FC_REG_BOARD_EVENT; 1212 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1213 shost = lpfc_shost_from_vport(phba->pport); 1214 fc_host_post_vendor_event(shost, fc_get_event_number(), 1215 sizeof(board_event), 1216 (char *) &board_event, 1217 LPFC_NL_VENDOR_ID); 1218} 1219 1220/** 1221 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1222 * @phba: pointer to lpfc hba data structure. 1223 * 1224 * This routine is invoked to handle the following HBA hardware error 1225 * conditions: 1226 * 1 - HBA error attention interrupt 1227 * 2 - DMA ring index out of range 1228 * 3 - Mailbox command came back as unknown 1229 **/ 1230static void 1231lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1232{ 1233 struct lpfc_vport *vport = phba->pport; 1234 struct lpfc_sli *psli = &phba->sli; 1235 struct lpfc_sli_ring *pring; 1236 uint32_t event_data; 1237 unsigned long temperature; 1238 struct temp_event temp_event_data; 1239 struct Scsi_Host *shost; 1240 1241 /* If the pci channel is offline, ignore possible errors, 1242 * since we cannot communicate with the pci card anyway. 1243 */ 1244 if (pci_channel_offline(phba->pcidev)) { 1245 spin_lock_irq(&phba->hbalock); 1246 phba->hba_flag &= ~DEFER_ERATT; 1247 spin_unlock_irq(&phba->hbalock); 1248 return; 1249 } 1250 1251 /* If resets are disabled then leave the HBA alone and return */ 1252 if (!phba->cfg_enable_hba_reset) 1253 return; 1254 1255 /* Send an internal error event to mgmt application */ 1256 lpfc_board_errevt_to_mgmt(phba); 1257 1258 if (phba->hba_flag & DEFER_ERATT) 1259 lpfc_handle_deferred_eratt(phba); 1260 1261 if (phba->work_hs & HS_FFER6) { 1262 /* Re-establishing Link */ 1263 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1264 "1301 Re-establishing Link " 1265 "Data: x%x x%x x%x\n", 1266 phba->work_hs, 1267 phba->work_status[0], phba->work_status[1]); 1268 1269 spin_lock_irq(&phba->hbalock); 1270 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1271 spin_unlock_irq(&phba->hbalock); 1272 1273 /* 1274 * Firmware stops when it triggled erratt with HS_FFER6. 1275 * That could cause the I/Os dropped by the firmware. 1276 * Error iocb (I/O) on txcmplq and let the SCSI layer 1277 * retry it after re-establishing link. 1278 */ 1279 pring = &psli->ring[psli->fcp_ring]; 1280 lpfc_sli_abort_iocb_ring(phba, pring); 1281 1282 /* 1283 * There was a firmware error. Take the hba offline and then 1284 * attempt to restart it. 1285 */ 1286 lpfc_offline_prep(phba); 1287 lpfc_offline(phba); 1288 lpfc_sli_brdrestart(phba); 1289 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1290 lpfc_unblock_mgmt_io(phba); 1291 return; 1292 } 1293 lpfc_unblock_mgmt_io(phba); 1294 } else if (phba->work_hs & HS_CRIT_TEMP) { 1295 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1296 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1297 temp_event_data.event_code = LPFC_CRIT_TEMP; 1298 temp_event_data.data = (uint32_t)temperature; 1299 1300 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1301 "0406 Adapter maximum temperature exceeded " 1302 "(%ld), taking this port offline " 1303 "Data: x%x x%x x%x\n", 1304 temperature, phba->work_hs, 1305 phba->work_status[0], phba->work_status[1]); 1306 1307 shost = lpfc_shost_from_vport(phba->pport); 1308 fc_host_post_vendor_event(shost, fc_get_event_number(), 1309 sizeof(temp_event_data), 1310 (char *) &temp_event_data, 1311 SCSI_NL_VID_TYPE_PCI 1312 | PCI_VENDOR_ID_EMULEX); 1313 1314 spin_lock_irq(&phba->hbalock); 1315 phba->over_temp_state = HBA_OVER_TEMP; 1316 spin_unlock_irq(&phba->hbalock); 1317 lpfc_offline_eratt(phba); 1318 1319 } else { 1320 /* The if clause above forces this code path when the status 1321 * failure is a value other than FFER6. Do not call the offline 1322 * twice. This is the adapter hardware error path. 1323 */ 1324 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1325 "0457 Adapter Hardware Error " 1326 "Data: x%x x%x x%x\n", 1327 phba->work_hs, 1328 phba->work_status[0], phba->work_status[1]); 1329 1330 event_data = FC_REG_DUMP_EVENT; 1331 shost = lpfc_shost_from_vport(vport); 1332 fc_host_post_vendor_event(shost, fc_get_event_number(), 1333 sizeof(event_data), (char *) &event_data, 1334 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1335 1336 lpfc_offline_eratt(phba); 1337 } 1338 return; 1339} 1340 1341/** 1342 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1343 * @phba: pointer to lpfc hba data structure. 1344 * 1345 * This routine is invoked to handle the SLI4 HBA hardware error attention 1346 * conditions. 1347 **/ 1348static void 1349lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1350{ 1351 struct lpfc_vport *vport = phba->pport; 1352 uint32_t event_data; 1353 struct Scsi_Host *shost; 1354 1355 /* If the pci channel is offline, ignore possible errors, since 1356 * we cannot communicate with the pci card anyway. 1357 */ 1358 if (pci_channel_offline(phba->pcidev)) 1359 return; 1360 /* If resets are disabled then leave the HBA alone and return */ 1361 if (!phba->cfg_enable_hba_reset) 1362 return; 1363 1364 /* Send an internal error event to mgmt application */ 1365 lpfc_board_errevt_to_mgmt(phba); 1366 1367 /* For now, the actual action for SLI4 device handling is not 1368 * specified yet, just treated it as adaptor hardware failure 1369 */ 1370 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1371 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n", 1372 phba->work_status[0], phba->work_status[1]); 1373 1374 event_data = FC_REG_DUMP_EVENT; 1375 shost = lpfc_shost_from_vport(vport); 1376 fc_host_post_vendor_event(shost, fc_get_event_number(), 1377 sizeof(event_data), (char *) &event_data, 1378 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1379 1380 lpfc_sli4_offline_eratt(phba); 1381} 1382 1383/** 1384 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1385 * @phba: pointer to lpfc HBA data structure. 1386 * 1387 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1388 * routine from the API jump table function pointer from the lpfc_hba struct. 1389 * 1390 * Return codes 1391 * 0 - success. 1392 * Any other value - error. 1393 **/ 1394void 1395lpfc_handle_eratt(struct lpfc_hba *phba) 1396{ 1397 (*phba->lpfc_handle_eratt)(phba); 1398} 1399 1400/** 1401 * lpfc_handle_latt - The HBA link event handler 1402 * @phba: pointer to lpfc hba data structure. 1403 * 1404 * This routine is invoked from the worker thread to handle a HBA host 1405 * attention link event. 1406 **/ 1407void 1408lpfc_handle_latt(struct lpfc_hba *phba) 1409{ 1410 struct lpfc_vport *vport = phba->pport; 1411 struct lpfc_sli *psli = &phba->sli; 1412 LPFC_MBOXQ_t *pmb; 1413 volatile uint32_t control; 1414 struct lpfc_dmabuf *mp; 1415 int rc = 0; 1416 1417 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1418 if (!pmb) { 1419 rc = 1; 1420 goto lpfc_handle_latt_err_exit; 1421 } 1422 1423 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1424 if (!mp) { 1425 rc = 2; 1426 goto lpfc_handle_latt_free_pmb; 1427 } 1428 1429 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1430 if (!mp->virt) { 1431 rc = 3; 1432 goto lpfc_handle_latt_free_mp; 1433 } 1434 1435 /* Cleanup any outstanding ELS commands */ 1436 lpfc_els_flush_all_cmd(phba); 1437 1438 psli->slistat.link_event++; 1439 lpfc_read_la(phba, pmb, mp); 1440 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 1441 pmb->vport = vport; 1442 /* Block ELS IOCBs until we have processed this mbox command */ 1443 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1444 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1445 if (rc == MBX_NOT_FINISHED) { 1446 rc = 4; 1447 goto lpfc_handle_latt_free_mbuf; 1448 } 1449 1450 /* Clear Link Attention in HA REG */ 1451 spin_lock_irq(&phba->hbalock); 1452 writel(HA_LATT, phba->HAregaddr); 1453 readl(phba->HAregaddr); /* flush */ 1454 spin_unlock_irq(&phba->hbalock); 1455 1456 return; 1457 1458lpfc_handle_latt_free_mbuf: 1459 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1460 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1461lpfc_handle_latt_free_mp: 1462 kfree(mp); 1463lpfc_handle_latt_free_pmb: 1464 mempool_free(pmb, phba->mbox_mem_pool); 1465lpfc_handle_latt_err_exit: 1466 /* Enable Link attention interrupts */ 1467 spin_lock_irq(&phba->hbalock); 1468 psli->sli_flag |= LPFC_PROCESS_LA; 1469 control = readl(phba->HCregaddr); 1470 control |= HC_LAINT_ENA; 1471 writel(control, phba->HCregaddr); 1472 readl(phba->HCregaddr); /* flush */ 1473 1474 /* Clear Link Attention in HA REG */ 1475 writel(HA_LATT, phba->HAregaddr); 1476 readl(phba->HAregaddr); /* flush */ 1477 spin_unlock_irq(&phba->hbalock); 1478 lpfc_linkdown(phba); 1479 phba->link_state = LPFC_HBA_ERROR; 1480 1481 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1482 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1483 1484 return; 1485} 1486 1487/** 1488 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1489 * @phba: pointer to lpfc hba data structure. 1490 * @vpd: pointer to the vital product data. 1491 * @len: length of the vital product data in bytes. 1492 * 1493 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1494 * an array of characters. In this routine, the ModelName, ProgramType, and 1495 * ModelDesc, etc. fields of the phba data structure will be populated. 1496 * 1497 * Return codes 1498 * 0 - pointer to the VPD passed in is NULL 1499 * 1 - success 1500 **/ 1501int 1502lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1503{ 1504 uint8_t lenlo, lenhi; 1505 int Length; 1506 int i, j; 1507 int finished = 0; 1508 int index = 0; 1509 1510 if (!vpd) 1511 return 0; 1512 1513 /* Vital Product */ 1514 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1515 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1516 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1517 (uint32_t) vpd[3]); 1518 while (!finished && (index < (len - 4))) { 1519 switch (vpd[index]) { 1520 case 0x82: 1521 case 0x91: 1522 index += 1; 1523 lenlo = vpd[index]; 1524 index += 1; 1525 lenhi = vpd[index]; 1526 index += 1; 1527 i = ((((unsigned short)lenhi) << 8) + lenlo); 1528 index += i; 1529 break; 1530 case 0x90: 1531 index += 1; 1532 lenlo = vpd[index]; 1533 index += 1; 1534 lenhi = vpd[index]; 1535 index += 1; 1536 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1537 if (Length > len - index) 1538 Length = len - index; 1539 while (Length > 0) { 1540 /* Look for Serial Number */ 1541 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1542 index += 2; 1543 i = vpd[index]; 1544 index += 1; 1545 j = 0; 1546 Length -= (3+i); 1547 while(i--) { 1548 phba->SerialNumber[j++] = vpd[index++]; 1549 if (j == 31) 1550 break; 1551 } 1552 phba->SerialNumber[j] = 0; 1553 continue; 1554 } 1555 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1556 phba->vpd_flag |= VPD_MODEL_DESC; 1557 index += 2; 1558 i = vpd[index]; 1559 index += 1; 1560 j = 0; 1561 Length -= (3+i); 1562 while(i--) { 1563 phba->ModelDesc[j++] = vpd[index++]; 1564 if (j == 255) 1565 break; 1566 } 1567 phba->ModelDesc[j] = 0; 1568 continue; 1569 } 1570 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1571 phba->vpd_flag |= VPD_MODEL_NAME; 1572 index += 2; 1573 i = vpd[index]; 1574 index += 1; 1575 j = 0; 1576 Length -= (3+i); 1577 while(i--) { 1578 phba->ModelName[j++] = vpd[index++]; 1579 if (j == 79) 1580 break; 1581 } 1582 phba->ModelName[j] = 0; 1583 continue; 1584 } 1585 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1586 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1587 index += 2; 1588 i = vpd[index]; 1589 index += 1; 1590 j = 0; 1591 Length -= (3+i); 1592 while(i--) { 1593 phba->ProgramType[j++] = vpd[index++]; 1594 if (j == 255) 1595 break; 1596 } 1597 phba->ProgramType[j] = 0; 1598 continue; 1599 } 1600 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1601 phba->vpd_flag |= VPD_PORT; 1602 index += 2; 1603 i = vpd[index]; 1604 index += 1; 1605 j = 0; 1606 Length -= (3+i); 1607 while(i--) { 1608 phba->Port[j++] = vpd[index++]; 1609 if (j == 19) 1610 break; 1611 } 1612 phba->Port[j] = 0; 1613 continue; 1614 } 1615 else { 1616 index += 2; 1617 i = vpd[index]; 1618 index += 1; 1619 index += i; 1620 Length -= (3 + i); 1621 } 1622 } 1623 finished = 0; 1624 break; 1625 case 0x78: 1626 finished = 1; 1627 break; 1628 default: 1629 index ++; 1630 break; 1631 } 1632 } 1633 1634 return(1); 1635} 1636 1637/** 1638 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1639 * @phba: pointer to lpfc hba data structure. 1640 * @mdp: pointer to the data structure to hold the derived model name. 1641 * @descp: pointer to the data structure to hold the derived description. 1642 * 1643 * This routine retrieves HBA's description based on its registered PCI device 1644 * ID. The @descp passed into this function points to an array of 256 chars. It 1645 * shall be returned with the model name, maximum speed, and the host bus type. 1646 * The @mdp passed into this function points to an array of 80 chars. When the 1647 * function returns, the @mdp will be filled with the model name. 1648 **/ 1649static void 1650lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1651{ 1652 lpfc_vpd_t *vp; 1653 uint16_t dev_id = phba->pcidev->device; 1654 int max_speed; 1655 int GE = 0; 1656 int oneConnect = 0; /* default is not a oneConnect */ 1657 struct { 1658 char *name; 1659 char *bus; 1660 char *function; 1661 } m = {"<Unknown>", "", ""}; 1662 1663 if (mdp && mdp[0] != '\0' 1664 && descp && descp[0] != '\0') 1665 return; 1666 1667 if (phba->lmt & LMT_10Gb) 1668 max_speed = 10; 1669 else if (phba->lmt & LMT_8Gb) 1670 max_speed = 8; 1671 else if (phba->lmt & LMT_4Gb) 1672 max_speed = 4; 1673 else if (phba->lmt & LMT_2Gb) 1674 max_speed = 2; 1675 else 1676 max_speed = 1; 1677 1678 vp = &phba->vpd; 1679 1680 switch (dev_id) { 1681 case PCI_DEVICE_ID_FIREFLY: 1682 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1683 break; 1684 case PCI_DEVICE_ID_SUPERFLY: 1685 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1686 m = (typeof(m)){"LP7000", "PCI", 1687 "Fibre Channel Adapter"}; 1688 else 1689 m = (typeof(m)){"LP7000E", "PCI", 1690 "Fibre Channel Adapter"}; 1691 break; 1692 case PCI_DEVICE_ID_DRAGONFLY: 1693 m = (typeof(m)){"LP8000", "PCI", 1694 "Fibre Channel Adapter"}; 1695 break; 1696 case PCI_DEVICE_ID_CENTAUR: 1697 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1698 m = (typeof(m)){"LP9002", "PCI", 1699 "Fibre Channel Adapter"}; 1700 else 1701 m = (typeof(m)){"LP9000", "PCI", 1702 "Fibre Channel Adapter"}; 1703 break; 1704 case PCI_DEVICE_ID_RFLY: 1705 m = (typeof(m)){"LP952", "PCI", 1706 "Fibre Channel Adapter"}; 1707 break; 1708 case PCI_DEVICE_ID_PEGASUS: 1709 m = (typeof(m)){"LP9802", "PCI-X", 1710 "Fibre Channel Adapter"}; 1711 break; 1712 case PCI_DEVICE_ID_THOR: 1713 m = (typeof(m)){"LP10000", "PCI-X", 1714 "Fibre Channel Adapter"}; 1715 break; 1716 case PCI_DEVICE_ID_VIPER: 1717 m = (typeof(m)){"LPX1000", "PCI-X", 1718 "Fibre Channel Adapter"}; 1719 break; 1720 case PCI_DEVICE_ID_PFLY: 1721 m = (typeof(m)){"LP982", "PCI-X", 1722 "Fibre Channel Adapter"}; 1723 break; 1724 case PCI_DEVICE_ID_TFLY: 1725 m = (typeof(m)){"LP1050", "PCI-X", 1726 "Fibre Channel Adapter"}; 1727 break; 1728 case PCI_DEVICE_ID_HELIOS: 1729 m = (typeof(m)){"LP11000", "PCI-X2", 1730 "Fibre Channel Adapter"}; 1731 break; 1732 case PCI_DEVICE_ID_HELIOS_SCSP: 1733 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1734 "Fibre Channel Adapter"}; 1735 break; 1736 case PCI_DEVICE_ID_HELIOS_DCSP: 1737 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1738 "Fibre Channel Adapter"}; 1739 break; 1740 case PCI_DEVICE_ID_NEPTUNE: 1741 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1742 break; 1743 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1744 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1745 break; 1746 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1747 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1748 break; 1749 case PCI_DEVICE_ID_BMID: 1750 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1751 break; 1752 case PCI_DEVICE_ID_BSMB: 1753 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1754 break; 1755 case PCI_DEVICE_ID_ZEPHYR: 1756 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1757 break; 1758 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1759 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1760 break; 1761 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1762 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1763 GE = 1; 1764 break; 1765 case PCI_DEVICE_ID_ZMID: 1766 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1767 break; 1768 case PCI_DEVICE_ID_ZSMB: 1769 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1770 break; 1771 case PCI_DEVICE_ID_LP101: 1772 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1773 break; 1774 case PCI_DEVICE_ID_LP10000S: 1775 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1776 break; 1777 case PCI_DEVICE_ID_LP11000S: 1778 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 1779 break; 1780 case PCI_DEVICE_ID_LPE11000S: 1781 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 1782 break; 1783 case PCI_DEVICE_ID_SAT: 1784 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 1785 break; 1786 case PCI_DEVICE_ID_SAT_MID: 1787 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 1788 break; 1789 case PCI_DEVICE_ID_SAT_SMB: 1790 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 1791 break; 1792 case PCI_DEVICE_ID_SAT_DCSP: 1793 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 1794 break; 1795 case PCI_DEVICE_ID_SAT_SCSP: 1796 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 1797 break; 1798 case PCI_DEVICE_ID_SAT_S: 1799 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 1800 break; 1801 case PCI_DEVICE_ID_HORNET: 1802 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 1803 GE = 1; 1804 break; 1805 case PCI_DEVICE_ID_PROTEUS_VF: 1806 m = (typeof(m)){"LPev12000", "PCIe IOV", 1807 "Fibre Channel Adapter"}; 1808 break; 1809 case PCI_DEVICE_ID_PROTEUS_PF: 1810 m = (typeof(m)){"LPev12000", "PCIe IOV", 1811 "Fibre Channel Adapter"}; 1812 break; 1813 case PCI_DEVICE_ID_PROTEUS_S: 1814 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 1815 "Fibre Channel Adapter"}; 1816 break; 1817 case PCI_DEVICE_ID_TIGERSHARK: 1818 oneConnect = 1; 1819 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 1820 break; 1821 case PCI_DEVICE_ID_TOMCAT: 1822 oneConnect = 1; 1823 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 1824 break; 1825 case PCI_DEVICE_ID_FALCON: 1826 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 1827 "EmulexSecure Fibre"}; 1828 break; 1829 default: 1830 m = (typeof(m)){"Unknown", "", ""}; 1831 break; 1832 } 1833 1834 if (mdp && mdp[0] == '\0') 1835 snprintf(mdp, 79,"%s", m.name); 1836 /* oneConnect hba requires special processing, they are all initiators 1837 * and we put the port number on the end 1838 */ 1839 if (descp && descp[0] == '\0') { 1840 if (oneConnect) 1841 snprintf(descp, 255, 1842 "Emulex OneConnect %s, %s Initiator, Port %s", 1843 m.name, m.function, 1844 phba->Port); 1845 else 1846 snprintf(descp, 255, 1847 "Emulex %s %d%s %s %s", 1848 m.name, max_speed, (GE) ? "GE" : "Gb", 1849 m.bus, m.function); 1850 } 1851} 1852 1853/** 1854 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 1855 * @phba: pointer to lpfc hba data structure. 1856 * @pring: pointer to a IOCB ring. 1857 * @cnt: the number of IOCBs to be posted to the IOCB ring. 1858 * 1859 * This routine posts a given number of IOCBs with the associated DMA buffer 1860 * descriptors specified by the cnt argument to the given IOCB ring. 1861 * 1862 * Return codes 1863 * The number of IOCBs NOT able to be posted to the IOCB ring. 1864 **/ 1865int 1866lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 1867{ 1868 IOCB_t *icmd; 1869 struct lpfc_iocbq *iocb; 1870 struct lpfc_dmabuf *mp1, *mp2; 1871 1872 cnt += pring->missbufcnt; 1873 1874 /* While there are buffers to post */ 1875 while (cnt > 0) { 1876 /* Allocate buffer for command iocb */ 1877 iocb = lpfc_sli_get_iocbq(phba); 1878 if (iocb == NULL) { 1879 pring->missbufcnt = cnt; 1880 return cnt; 1881 } 1882 icmd = &iocb->iocb; 1883 1884 /* 2 buffers can be posted per command */ 1885 /* Allocate buffer to post */ 1886 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1887 if (mp1) 1888 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 1889 if (!mp1 || !mp1->virt) { 1890 kfree(mp1); 1891 lpfc_sli_release_iocbq(phba, iocb); 1892 pring->missbufcnt = cnt; 1893 return cnt; 1894 } 1895 1896 INIT_LIST_HEAD(&mp1->list); 1897 /* Allocate buffer to post */ 1898 if (cnt > 1) { 1899 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1900 if (mp2) 1901 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1902 &mp2->phys); 1903 if (!mp2 || !mp2->virt) { 1904 kfree(mp2); 1905 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1906 kfree(mp1); 1907 lpfc_sli_release_iocbq(phba, iocb); 1908 pring->missbufcnt = cnt; 1909 return cnt; 1910 } 1911 1912 INIT_LIST_HEAD(&mp2->list); 1913 } else { 1914 mp2 = NULL; 1915 } 1916 1917 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1918 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1919 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1920 icmd->ulpBdeCount = 1; 1921 cnt--; 1922 if (mp2) { 1923 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1924 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1925 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1926 cnt--; 1927 icmd->ulpBdeCount = 2; 1928 } 1929 1930 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1931 icmd->ulpLe = 1; 1932 1933 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 1934 IOCB_ERROR) { 1935 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1936 kfree(mp1); 1937 cnt++; 1938 if (mp2) { 1939 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1940 kfree(mp2); 1941 cnt++; 1942 } 1943 lpfc_sli_release_iocbq(phba, iocb); 1944 pring->missbufcnt = cnt; 1945 return cnt; 1946 } 1947 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1948 if (mp2) 1949 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1950 } 1951 pring->missbufcnt = 0; 1952 return 0; 1953} 1954 1955/** 1956 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 1957 * @phba: pointer to lpfc hba data structure. 1958 * 1959 * This routine posts initial receive IOCB buffers to the ELS ring. The 1960 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 1961 * set to 64 IOCBs. 1962 * 1963 * Return codes 1964 * 0 - success (currently always success) 1965 **/ 1966static int 1967lpfc_post_rcv_buf(struct lpfc_hba *phba) 1968{ 1969 struct lpfc_sli *psli = &phba->sli; 1970 1971 /* Ring 0, ELS / CT buffers */ 1972 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 1973 /* Ring 2 - FCP no buffers needed */ 1974 1975 return 0; 1976} 1977 1978#define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 1979 1980/** 1981 * lpfc_sha_init - Set up initial array of hash table entries 1982 * @HashResultPointer: pointer to an array as hash table. 1983 * 1984 * This routine sets up the initial values to the array of hash table entries 1985 * for the LC HBAs. 1986 **/ 1987static void 1988lpfc_sha_init(uint32_t * HashResultPointer) 1989{ 1990 HashResultPointer[0] = 0x67452301; 1991 HashResultPointer[1] = 0xEFCDAB89; 1992 HashResultPointer[2] = 0x98BADCFE; 1993 HashResultPointer[3] = 0x10325476; 1994 HashResultPointer[4] = 0xC3D2E1F0; 1995} 1996 1997/** 1998 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 1999 * @HashResultPointer: pointer to an initial/result hash table. 2000 * @HashWorkingPointer: pointer to an working hash table. 2001 * 2002 * This routine iterates an initial hash table pointed by @HashResultPointer 2003 * with the values from the working hash table pointeed by @HashWorkingPointer. 2004 * The results are putting back to the initial hash table, returned through 2005 * the @HashResultPointer as the result hash table. 2006 **/ 2007static void 2008lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2009{ 2010 int t; 2011 uint32_t TEMP; 2012 uint32_t A, B, C, D, E; 2013 t = 16; 2014 do { 2015 HashWorkingPointer[t] = 2016 S(1, 2017 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2018 8] ^ 2019 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2020 } while (++t <= 79); 2021 t = 0; 2022 A = HashResultPointer[0]; 2023 B = HashResultPointer[1]; 2024 C = HashResultPointer[2]; 2025 D = HashResultPointer[3]; 2026 E = HashResultPointer[4]; 2027 2028 do { 2029 if (t < 20) { 2030 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2031 } else if (t < 40) { 2032 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2033 } else if (t < 60) { 2034 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2035 } else { 2036 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2037 } 2038 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2039 E = D; 2040 D = C; 2041 C = S(30, B); 2042 B = A; 2043 A = TEMP; 2044 } while (++t <= 79); 2045 2046 HashResultPointer[0] += A; 2047 HashResultPointer[1] += B; 2048 HashResultPointer[2] += C; 2049 HashResultPointer[3] += D; 2050 HashResultPointer[4] += E; 2051 2052} 2053 2054/** 2055 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2056 * @RandomChallenge: pointer to the entry of host challenge random number array. 2057 * @HashWorking: pointer to the entry of the working hash array. 2058 * 2059 * This routine calculates the working hash array referred by @HashWorking 2060 * from the challenge random numbers associated with the host, referred by 2061 * @RandomChallenge. The result is put into the entry of the working hash 2062 * array and returned by reference through @HashWorking. 2063 **/ 2064static void 2065lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2066{ 2067 *HashWorking = (*RandomChallenge ^ *HashWorking); 2068} 2069 2070/** 2071 * lpfc_hba_init - Perform special handling for LC HBA initialization 2072 * @phba: pointer to lpfc hba data structure. 2073 * @hbainit: pointer to an array of unsigned 32-bit integers. 2074 * 2075 * This routine performs the special handling for LC HBA initialization. 2076 **/ 2077void 2078lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2079{ 2080 int t; 2081 uint32_t *HashWorking; 2082 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2083 2084 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2085 if (!HashWorking) 2086 return; 2087 2088 HashWorking[0] = HashWorking[78] = *pwwnn++; 2089 HashWorking[1] = HashWorking[79] = *pwwnn; 2090 2091 for (t = 0; t < 7; t++) 2092 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2093 2094 lpfc_sha_init(hbainit); 2095 lpfc_sha_iterate(hbainit, HashWorking); 2096 kfree(HashWorking); 2097} 2098 2099/** 2100 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2101 * @vport: pointer to a virtual N_Port data structure. 2102 * 2103 * This routine performs the necessary cleanups before deleting the @vport. 2104 * It invokes the discovery state machine to perform necessary state 2105 * transitions and to release the ndlps associated with the @vport. Note, 2106 * the physical port is treated as @vport 0. 2107 **/ 2108void 2109lpfc_cleanup(struct lpfc_vport *vport) 2110{ 2111 struct lpfc_hba *phba = vport->phba; 2112 struct lpfc_nodelist *ndlp, *next_ndlp; 2113 int i = 0; 2114 2115 if (phba->link_state > LPFC_LINK_DOWN) 2116 lpfc_port_link_failure(vport); 2117 2118 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2119 if (!NLP_CHK_NODE_ACT(ndlp)) { 2120 ndlp = lpfc_enable_node(vport, ndlp, 2121 NLP_STE_UNUSED_NODE); 2122 if (!ndlp) 2123 continue; 2124 spin_lock_irq(&phba->ndlp_lock); 2125 NLP_SET_FREE_REQ(ndlp); 2126 spin_unlock_irq(&phba->ndlp_lock); 2127 /* Trigger the release of the ndlp memory */ 2128 lpfc_nlp_put(ndlp); 2129 continue; 2130 } 2131 spin_lock_irq(&phba->ndlp_lock); 2132 if (NLP_CHK_FREE_REQ(ndlp)) { 2133 /* The ndlp should not be in memory free mode already */ 2134 spin_unlock_irq(&phba->ndlp_lock); 2135 continue; 2136 } else 2137 /* Indicate request for freeing ndlp memory */ 2138 NLP_SET_FREE_REQ(ndlp); 2139 spin_unlock_irq(&phba->ndlp_lock); 2140 2141 if (vport->port_type != LPFC_PHYSICAL_PORT && 2142 ndlp->nlp_DID == Fabric_DID) { 2143 /* Just free up ndlp with Fabric_DID for vports */ 2144 lpfc_nlp_put(ndlp); 2145 continue; 2146 } 2147 2148 if (ndlp->nlp_type & NLP_FABRIC) 2149 lpfc_disc_state_machine(vport, ndlp, NULL, 2150 NLP_EVT_DEVICE_RECOVERY); 2151 2152 lpfc_disc_state_machine(vport, ndlp, NULL, 2153 NLP_EVT_DEVICE_RM); 2154 2155 } 2156 2157 /* At this point, ALL ndlp's should be gone 2158 * because of the previous NLP_EVT_DEVICE_RM. 2159 * Lets wait for this to happen, if needed. 2160 */ 2161 while (!list_empty(&vport->fc_nodes)) { 2162 if (i++ > 3000) { 2163 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2164 "0233 Nodelist not empty\n"); 2165 list_for_each_entry_safe(ndlp, next_ndlp, 2166 &vport->fc_nodes, nlp_listp) { 2167 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2168 LOG_NODE, 2169 "0282 did:x%x ndlp:x%p " 2170 "usgmap:x%x refcnt:%d\n", 2171 ndlp->nlp_DID, (void *)ndlp, 2172 ndlp->nlp_usg_map, 2173 atomic_read( 2174 &ndlp->kref.refcount)); 2175 } 2176 break; 2177 } 2178 2179 /* Wait for any activity on ndlps to settle */ 2180 msleep(10); 2181 } 2182} 2183 2184/** 2185 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2186 * @vport: pointer to a virtual N_Port data structure. 2187 * 2188 * This routine stops all the timers associated with a @vport. This function 2189 * is invoked before disabling or deleting a @vport. Note that the physical 2190 * port is treated as @vport 0. 2191 **/ 2192void 2193lpfc_stop_vport_timers(struct lpfc_vport *vport) 2194{ 2195 del_timer_sync(&vport->els_tmofunc); 2196 del_timer_sync(&vport->fc_fdmitmo); 2197 lpfc_can_disctmo(vport); 2198 return; 2199} 2200 2201/** 2202 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2203 * @phba: pointer to lpfc hba data structure. 2204 * 2205 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2206 * caller of this routine should already hold the host lock. 2207 **/ 2208void 2209__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2210{ 2211 /* Clear pending FCF rediscovery wait and failover in progress flags */ 2212 phba->fcf.fcf_flag &= ~(FCF_REDISC_PEND | 2213 FCF_DEAD_DISC | 2214 FCF_ACVL_DISC); 2215 /* Now, try to stop the timer */ 2216 del_timer(&phba->fcf.redisc_wait); 2217} 2218 2219/** 2220 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2221 * @phba: pointer to lpfc hba data structure. 2222 * 2223 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2224 * checks whether the FCF rediscovery wait timer is pending with the host 2225 * lock held before proceeding with disabling the timer and clearing the 2226 * wait timer pendig flag. 2227 **/ 2228void 2229lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2230{ 2231 spin_lock_irq(&phba->hbalock); 2232 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2233 /* FCF rediscovery timer already fired or stopped */ 2234 spin_unlock_irq(&phba->hbalock); 2235 return; 2236 } 2237 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2238 spin_unlock_irq(&phba->hbalock); 2239} 2240 2241/** 2242 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2243 * @phba: pointer to lpfc hba data structure. 2244 * 2245 * This routine stops all the timers associated with a HBA. This function is 2246 * invoked before either putting a HBA offline or unloading the driver. 2247 **/ 2248void 2249lpfc_stop_hba_timers(struct lpfc_hba *phba) 2250{ 2251 lpfc_stop_vport_timers(phba->pport); 2252 del_timer_sync(&phba->sli.mbox_tmo); 2253 del_timer_sync(&phba->fabric_block_timer); 2254 del_timer_sync(&phba->eratt_poll); 2255 del_timer_sync(&phba->hb_tmofunc); 2256 phba->hb_outstanding = 0; 2257 2258 switch (phba->pci_dev_grp) { 2259 case LPFC_PCI_DEV_LP: 2260 /* Stop any LightPulse device specific driver timers */ 2261 del_timer_sync(&phba->fcp_poll_timer); 2262 break; 2263 case LPFC_PCI_DEV_OC: 2264 /* Stop any OneConnect device sepcific driver timers */ 2265 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2266 break; 2267 default: 2268 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2269 "0297 Invalid device group (x%x)\n", 2270 phba->pci_dev_grp); 2271 break; 2272 } 2273 return; 2274} 2275 2276/** 2277 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2278 * @phba: pointer to lpfc hba data structure. 2279 * 2280 * This routine marks a HBA's management interface as blocked. Once the HBA's 2281 * management interface is marked as blocked, all the user space access to 2282 * the HBA, whether they are from sysfs interface or libdfc interface will 2283 * all be blocked. The HBA is set to block the management interface when the 2284 * driver prepares the HBA interface for online or offline. 2285 **/ 2286static void 2287lpfc_block_mgmt_io(struct lpfc_hba * phba) 2288{ 2289 unsigned long iflag; 2290 uint8_t actcmd = MBX_HEARTBEAT; 2291 unsigned long timeout; 2292 2293 2294 spin_lock_irqsave(&phba->hbalock, iflag); 2295 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2296 if (phba->sli.mbox_active) 2297 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2298 spin_unlock_irqrestore(&phba->hbalock, iflag); 2299 /* Determine how long we might wait for the active mailbox 2300 * command to be gracefully completed by firmware. 2301 */ 2302 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) + 2303 jiffies; 2304 /* Wait for the outstnading mailbox command to complete */ 2305 while (phba->sli.mbox_active) { 2306 /* Check active mailbox complete status every 2ms */ 2307 msleep(2); 2308 if (time_after(jiffies, timeout)) { 2309 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2310 "2813 Mgmt IO is Blocked %x " 2311 "- mbox cmd %x still active\n", 2312 phba->sli.sli_flag, actcmd); 2313 break; 2314 } 2315 } 2316} 2317 2318/** 2319 * lpfc_online - Initialize and bring a HBA online 2320 * @phba: pointer to lpfc hba data structure. 2321 * 2322 * This routine initializes the HBA and brings a HBA online. During this 2323 * process, the management interface is blocked to prevent user space access 2324 * to the HBA interfering with the driver initialization. 2325 * 2326 * Return codes 2327 * 0 - successful 2328 * 1 - failed 2329 **/ 2330int 2331lpfc_online(struct lpfc_hba *phba) 2332{ 2333 struct lpfc_vport *vport; 2334 struct lpfc_vport **vports; 2335 int i; 2336 2337 if (!phba) 2338 return 0; 2339 vport = phba->pport; 2340 2341 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2342 return 0; 2343 2344 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2345 "0458 Bring Adapter online\n"); 2346 2347 lpfc_block_mgmt_io(phba); 2348 2349 if (!lpfc_sli_queue_setup(phba)) { 2350 lpfc_unblock_mgmt_io(phba); 2351 return 1; 2352 } 2353 2354 if (phba->sli_rev == LPFC_SLI_REV4) { 2355 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2356 lpfc_unblock_mgmt_io(phba); 2357 return 1; 2358 } 2359 } else { 2360 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2361 lpfc_unblock_mgmt_io(phba); 2362 return 1; 2363 } 2364 } 2365 2366 vports = lpfc_create_vport_work_array(phba); 2367 if (vports != NULL) 2368 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2369 struct Scsi_Host *shost; 2370 shost = lpfc_shost_from_vport(vports[i]); 2371 spin_lock_irq(shost->host_lock); 2372 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2373 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2374 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2375 if (phba->sli_rev == LPFC_SLI_REV4) 2376 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2377 spin_unlock_irq(shost->host_lock); 2378 } 2379 lpfc_destroy_vport_work_array(phba, vports); 2380 2381 lpfc_unblock_mgmt_io(phba); 2382 return 0; 2383} 2384 2385/** 2386 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2387 * @phba: pointer to lpfc hba data structure. 2388 * 2389 * This routine marks a HBA's management interface as not blocked. Once the 2390 * HBA's management interface is marked as not blocked, all the user space 2391 * access to the HBA, whether they are from sysfs interface or libdfc 2392 * interface will be allowed. The HBA is set to block the management interface 2393 * when the driver prepares the HBA interface for online or offline and then 2394 * set to unblock the management interface afterwards. 2395 **/ 2396void 2397lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2398{ 2399 unsigned long iflag; 2400 2401 spin_lock_irqsave(&phba->hbalock, iflag); 2402 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2403 spin_unlock_irqrestore(&phba->hbalock, iflag); 2404} 2405 2406/** 2407 * lpfc_offline_prep - Prepare a HBA to be brought offline 2408 * @phba: pointer to lpfc hba data structure. 2409 * 2410 * This routine is invoked to prepare a HBA to be brought offline. It performs 2411 * unregistration login to all the nodes on all vports and flushes the mailbox 2412 * queue to make it ready to be brought offline. 2413 **/ 2414void 2415lpfc_offline_prep(struct lpfc_hba * phba) 2416{ 2417 struct lpfc_vport *vport = phba->pport; 2418 struct lpfc_nodelist *ndlp, *next_ndlp; 2419 struct lpfc_vport **vports; 2420 struct Scsi_Host *shost; 2421 int i; 2422 2423 if (vport->fc_flag & FC_OFFLINE_MODE) 2424 return; 2425 2426 lpfc_block_mgmt_io(phba); 2427 2428 lpfc_linkdown(phba); 2429 2430 /* Issue an unreg_login to all nodes on all vports */ 2431 vports = lpfc_create_vport_work_array(phba); 2432 if (vports != NULL) { 2433 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2434 if (vports[i]->load_flag & FC_UNLOADING) 2435 continue; 2436 shost = lpfc_shost_from_vport(vports[i]); 2437 spin_lock_irq(shost->host_lock); 2438 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2439 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2440 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2441 spin_unlock_irq(shost->host_lock); 2442 2443 shost = lpfc_shost_from_vport(vports[i]); 2444 list_for_each_entry_safe(ndlp, next_ndlp, 2445 &vports[i]->fc_nodes, 2446 nlp_listp) { 2447 if (!NLP_CHK_NODE_ACT(ndlp)) 2448 continue; 2449 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2450 continue; 2451 if (ndlp->nlp_type & NLP_FABRIC) { 2452 lpfc_disc_state_machine(vports[i], ndlp, 2453 NULL, NLP_EVT_DEVICE_RECOVERY); 2454 lpfc_disc_state_machine(vports[i], ndlp, 2455 NULL, NLP_EVT_DEVICE_RM); 2456 } 2457 spin_lock_irq(shost->host_lock); 2458 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2459 spin_unlock_irq(shost->host_lock); 2460 lpfc_unreg_rpi(vports[i], ndlp); 2461 } 2462 } 2463 } 2464 lpfc_destroy_vport_work_array(phba, vports); 2465 2466 lpfc_sli_mbox_sys_shutdown(phba); 2467} 2468 2469/** 2470 * lpfc_offline - Bring a HBA offline 2471 * @phba: pointer to lpfc hba data structure. 2472 * 2473 * This routine actually brings a HBA offline. It stops all the timers 2474 * associated with the HBA, brings down the SLI layer, and eventually 2475 * marks the HBA as in offline state for the upper layer protocol. 2476 **/ 2477void 2478lpfc_offline(struct lpfc_hba *phba) 2479{ 2480 struct Scsi_Host *shost; 2481 struct lpfc_vport **vports; 2482 int i; 2483 2484 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2485 return; 2486 2487 /* stop port and all timers associated with this hba */ 2488 lpfc_stop_port(phba); 2489 vports = lpfc_create_vport_work_array(phba); 2490 if (vports != NULL) 2491 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2492 lpfc_stop_vport_timers(vports[i]); 2493 lpfc_destroy_vport_work_array(phba, vports); 2494 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2495 "0460 Bring Adapter offline\n"); 2496 /* Bring down the SLI Layer and cleanup. The HBA is offline 2497 now. */ 2498 lpfc_sli_hba_down(phba); 2499 spin_lock_irq(&phba->hbalock); 2500 phba->work_ha = 0; 2501 spin_unlock_irq(&phba->hbalock); 2502 vports = lpfc_create_vport_work_array(phba); 2503 if (vports != NULL) 2504 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2505 shost = lpfc_shost_from_vport(vports[i]); 2506 spin_lock_irq(shost->host_lock); 2507 vports[i]->work_port_events = 0; 2508 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2509 spin_unlock_irq(shost->host_lock); 2510 } 2511 lpfc_destroy_vport_work_array(phba, vports); 2512} 2513 2514/** 2515 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2516 * @phba: pointer to lpfc hba data structure. 2517 * 2518 * This routine is to free all the SCSI buffers and IOCBs from the driver 2519 * list back to kernel. It is called from lpfc_pci_remove_one to free 2520 * the internal resources before the device is removed from the system. 2521 * 2522 * Return codes 2523 * 0 - successful (for now, it always returns 0) 2524 **/ 2525static int 2526lpfc_scsi_free(struct lpfc_hba *phba) 2527{ 2528 struct lpfc_scsi_buf *sb, *sb_next; 2529 struct lpfc_iocbq *io, *io_next; 2530 2531 spin_lock_irq(&phba->hbalock); 2532 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2533 spin_lock(&phba->scsi_buf_list_lock); 2534 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2535 list_del(&sb->list); 2536 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2537 sb->dma_handle); 2538 kfree(sb); 2539 phba->total_scsi_bufs--; 2540 } 2541 spin_unlock(&phba->scsi_buf_list_lock); 2542 2543 /* Release all the lpfc_iocbq entries maintained by this host. */ 2544 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2545 list_del(&io->list); 2546 kfree(io); 2547 phba->total_iocbq_bufs--; 2548 } 2549 spin_unlock_irq(&phba->hbalock); 2550 return 0; 2551} 2552 2553/** 2554 * lpfc_create_port - Create an FC port 2555 * @phba: pointer to lpfc hba data structure. 2556 * @instance: a unique integer ID to this FC port. 2557 * @dev: pointer to the device data structure. 2558 * 2559 * This routine creates a FC port for the upper layer protocol. The FC port 2560 * can be created on top of either a physical port or a virtual port provided 2561 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2562 * and associates the FC port created before adding the shost into the SCSI 2563 * layer. 2564 * 2565 * Return codes 2566 * @vport - pointer to the virtual N_Port data structure. 2567 * NULL - port create failed. 2568 **/ 2569struct lpfc_vport * 2570lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2571{ 2572 struct lpfc_vport *vport; 2573 struct Scsi_Host *shost; 2574 int error = 0; 2575 2576 if (dev != &phba->pcidev->dev) 2577 shost = scsi_host_alloc(&lpfc_vport_template, 2578 sizeof(struct lpfc_vport)); 2579 else 2580 shost = scsi_host_alloc(&lpfc_template, 2581 sizeof(struct lpfc_vport)); 2582 if (!shost) 2583 goto out; 2584 2585 vport = (struct lpfc_vport *) shost->hostdata; 2586 vport->phba = phba; 2587 vport->load_flag |= FC_LOADING; 2588 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2589 vport->fc_rscn_flush = 0; 2590 2591 lpfc_get_vport_cfgparam(vport); 2592 shost->unique_id = instance; 2593 shost->max_id = LPFC_MAX_TARGET; 2594 shost->max_lun = vport->cfg_max_luns; 2595 shost->this_id = -1; 2596 shost->max_cmd_len = 16; 2597 if (phba->sli_rev == LPFC_SLI_REV4) { 2598 shost->dma_boundary = 2599 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 2600 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2601 } 2602 2603 /* 2604 * Set initial can_queue value since 0 is no longer supported and 2605 * scsi_add_host will fail. This will be adjusted later based on the 2606 * max xri value determined in hba setup. 2607 */ 2608 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2609 if (dev != &phba->pcidev->dev) { 2610 shost->transportt = lpfc_vport_transport_template; 2611 vport->port_type = LPFC_NPIV_PORT; 2612 } else { 2613 shost->transportt = lpfc_transport_template; 2614 vport->port_type = LPFC_PHYSICAL_PORT; 2615 } 2616 2617 /* Initialize all internally managed lists. */ 2618 INIT_LIST_HEAD(&vport->fc_nodes); 2619 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2620 spin_lock_init(&vport->work_port_lock); 2621 2622 init_timer(&vport->fc_disctmo); 2623 vport->fc_disctmo.function = lpfc_disc_timeout; 2624 vport->fc_disctmo.data = (unsigned long)vport; 2625 2626 init_timer(&vport->fc_fdmitmo); 2627 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2628 vport->fc_fdmitmo.data = (unsigned long)vport; 2629 2630 init_timer(&vport->els_tmofunc); 2631 vport->els_tmofunc.function = lpfc_els_timeout; 2632 vport->els_tmofunc.data = (unsigned long)vport; 2633 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 2634 if (error) 2635 goto out_put_shost; 2636 2637 spin_lock_irq(&phba->hbalock); 2638 list_add_tail(&vport->listentry, &phba->port_list); 2639 spin_unlock_irq(&phba->hbalock); 2640 return vport; 2641 2642out_put_shost: 2643 scsi_host_put(shost); 2644out: 2645 return NULL; 2646} 2647 2648/** 2649 * destroy_port - destroy an FC port 2650 * @vport: pointer to an lpfc virtual N_Port data structure. 2651 * 2652 * This routine destroys a FC port from the upper layer protocol. All the 2653 * resources associated with the port are released. 2654 **/ 2655void 2656destroy_port(struct lpfc_vport *vport) 2657{ 2658 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2659 struct lpfc_hba *phba = vport->phba; 2660 2661 lpfc_debugfs_terminate(vport); 2662 fc_remove_host(shost); 2663 scsi_remove_host(shost); 2664 2665 spin_lock_irq(&phba->hbalock); 2666 list_del_init(&vport->listentry); 2667 spin_unlock_irq(&phba->hbalock); 2668 2669 lpfc_cleanup(vport); 2670 return; 2671} 2672 2673/** 2674 * lpfc_get_instance - Get a unique integer ID 2675 * 2676 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2677 * uses the kernel idr facility to perform the task. 2678 * 2679 * Return codes: 2680 * instance - a unique integer ID allocated as the new instance. 2681 * -1 - lpfc get instance failed. 2682 **/ 2683int 2684lpfc_get_instance(void) 2685{ 2686 int instance = 0; 2687 2688 /* Assign an unused number */ 2689 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2690 return -1; 2691 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2692 return -1; 2693 return instance; 2694} 2695 2696/** 2697 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2698 * @shost: pointer to SCSI host data structure. 2699 * @time: elapsed time of the scan in jiffies. 2700 * 2701 * This routine is called by the SCSI layer with a SCSI host to determine 2702 * whether the scan host is finished. 2703 * 2704 * Note: there is no scan_start function as adapter initialization will have 2705 * asynchronously kicked off the link initialization. 2706 * 2707 * Return codes 2708 * 0 - SCSI host scan is not over yet. 2709 * 1 - SCSI host scan is over. 2710 **/ 2711int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2712{ 2713 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2714 struct lpfc_hba *phba = vport->phba; 2715 int stat = 0; 2716 2717 spin_lock_irq(shost->host_lock); 2718 2719 if (vport->load_flag & FC_UNLOADING) { 2720 stat = 1; 2721 goto finished; 2722 } 2723 if (time >= 30 * HZ) { 2724 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2725 "0461 Scanning longer than 30 " 2726 "seconds. Continuing initialization\n"); 2727 stat = 1; 2728 goto finished; 2729 } 2730 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2731 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2732 "0465 Link down longer than 15 " 2733 "seconds. Continuing initialization\n"); 2734 stat = 1; 2735 goto finished; 2736 } 2737 2738 if (vport->port_state != LPFC_VPORT_READY) 2739 goto finished; 2740 if (vport->num_disc_nodes || vport->fc_prli_sent) 2741 goto finished; 2742 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2743 goto finished; 2744 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2745 goto finished; 2746 2747 stat = 1; 2748 2749finished: 2750 spin_unlock_irq(shost->host_lock); 2751 return stat; 2752} 2753 2754/** 2755 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 2756 * @shost: pointer to SCSI host data structure. 2757 * 2758 * This routine initializes a given SCSI host attributes on a FC port. The 2759 * SCSI host can be either on top of a physical port or a virtual port. 2760 **/ 2761void lpfc_host_attrib_init(struct Scsi_Host *shost) 2762{ 2763 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2764 struct lpfc_hba *phba = vport->phba; 2765 /* 2766 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2767 */ 2768 2769 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2770 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2771 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2772 2773 memset(fc_host_supported_fc4s(shost), 0, 2774 sizeof(fc_host_supported_fc4s(shost))); 2775 fc_host_supported_fc4s(shost)[2] = 1; 2776 fc_host_supported_fc4s(shost)[7] = 1; 2777 2778 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2779 sizeof fc_host_symbolic_name(shost)); 2780 2781 fc_host_supported_speeds(shost) = 0; 2782 if (phba->lmt & LMT_10Gb) 2783 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2784 if (phba->lmt & LMT_8Gb) 2785 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2786 if (phba->lmt & LMT_4Gb) 2787 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2788 if (phba->lmt & LMT_2Gb) 2789 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2790 if (phba->lmt & LMT_1Gb) 2791 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2792 2793 fc_host_maxframe_size(shost) = 2794 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2795 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2796 2797 /* This value is also unchanging */ 2798 memset(fc_host_active_fc4s(shost), 0, 2799 sizeof(fc_host_active_fc4s(shost))); 2800 fc_host_active_fc4s(shost)[2] = 1; 2801 fc_host_active_fc4s(shost)[7] = 1; 2802 2803 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2804 spin_lock_irq(shost->host_lock); 2805 vport->load_flag &= ~FC_LOADING; 2806 spin_unlock_irq(shost->host_lock); 2807} 2808 2809/** 2810 * lpfc_stop_port_s3 - Stop SLI3 device port 2811 * @phba: pointer to lpfc hba data structure. 2812 * 2813 * This routine is invoked to stop an SLI3 device port, it stops the device 2814 * from generating interrupts and stops the device driver's timers for the 2815 * device. 2816 **/ 2817static void 2818lpfc_stop_port_s3(struct lpfc_hba *phba) 2819{ 2820 /* Clear all interrupt enable conditions */ 2821 writel(0, phba->HCregaddr); 2822 readl(phba->HCregaddr); /* flush */ 2823 /* Clear all pending interrupts */ 2824 writel(0xffffffff, phba->HAregaddr); 2825 readl(phba->HAregaddr); /* flush */ 2826 2827 /* Reset some HBA SLI setup states */ 2828 lpfc_stop_hba_timers(phba); 2829 phba->pport->work_port_events = 0; 2830} 2831 2832/** 2833 * lpfc_stop_port_s4 - Stop SLI4 device port 2834 * @phba: pointer to lpfc hba data structure. 2835 * 2836 * This routine is invoked to stop an SLI4 device port, it stops the device 2837 * from generating interrupts and stops the device driver's timers for the 2838 * device. 2839 **/ 2840static void 2841lpfc_stop_port_s4(struct lpfc_hba *phba) 2842{ 2843 /* Reset some HBA SLI4 setup states */ 2844 lpfc_stop_hba_timers(phba); 2845 phba->pport->work_port_events = 0; 2846 phba->sli4_hba.intr_enable = 0; 2847} 2848 2849/** 2850 * lpfc_stop_port - Wrapper function for stopping hba port 2851 * @phba: Pointer to HBA context object. 2852 * 2853 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 2854 * the API jump table function pointer from the lpfc_hba struct. 2855 **/ 2856void 2857lpfc_stop_port(struct lpfc_hba *phba) 2858{ 2859 phba->lpfc_stop_port(phba); 2860} 2861 2862/** 2863 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port. 2864 * @phba: pointer to lpfc hba data structure. 2865 * 2866 * This routine is invoked to remove the driver default fcf record from 2867 * the port. This routine currently acts on FCF Index 0. 2868 * 2869 **/ 2870void 2871lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba) 2872{ 2873 int rc = 0; 2874 LPFC_MBOXQ_t *mboxq; 2875 struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record; 2876 uint32_t mbox_tmo, req_len; 2877 uint32_t shdr_status, shdr_add_status; 2878 2879 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2880 if (!mboxq) { 2881 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2882 "2020 Failed to allocate mbox for ADD_FCF cmd\n"); 2883 return; 2884 } 2885 2886 req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) - 2887 sizeof(struct lpfc_sli4_cfg_mhdr); 2888 rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, 2889 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF, 2890 req_len, LPFC_SLI4_MBX_EMBED); 2891 /* 2892 * In phase 1, there is a single FCF index, 0. In phase2, the driver 2893 * supports multiple FCF indices. 2894 */ 2895 del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry; 2896 bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1); 2897 bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record, 2898 phba->fcf.current_rec.fcf_indx); 2899 2900 if (!phba->sli4_hba.intr_enable) 2901 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 2902 else { 2903 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 2904 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 2905 } 2906 /* The IOCTL status is embedded in the mailbox subheader. */ 2907 shdr_status = bf_get(lpfc_mbox_hdr_status, 2908 &del_fcf_record->header.cfg_shdr.response); 2909 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 2910 &del_fcf_record->header.cfg_shdr.response); 2911 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 2912 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2913 "2516 DEL FCF of default FCF Index failed " 2914 "mbx status x%x, status x%x add_status x%x\n", 2915 rc, shdr_status, shdr_add_status); 2916 } 2917 if (rc != MBX_TIMEOUT) 2918 mempool_free(mboxq, phba->mbox_mem_pool); 2919} 2920 2921/** 2922 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 2923 * @phba: Pointer to hba for which this call is being executed. 2924 * 2925 * This routine starts the timer waiting for the FCF rediscovery to complete. 2926 **/ 2927void 2928lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 2929{ 2930 unsigned long fcf_redisc_wait_tmo = 2931 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 2932 /* Start fcf rediscovery wait period timer */ 2933 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 2934 spin_lock_irq(&phba->hbalock); 2935 /* Allow action to new fcf asynchronous event */ 2936 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2937 /* Mark the FCF rediscovery pending state */ 2938 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 2939 spin_unlock_irq(&phba->hbalock); 2940} 2941 2942/** 2943 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 2944 * @ptr: Map to lpfc_hba data structure pointer. 2945 * 2946 * This routine is invoked when waiting for FCF table rediscover has been 2947 * timed out. If new FCF record(s) has (have) been discovered during the 2948 * wait period, a new FCF event shall be added to the FCOE async event 2949 * list, and then worker thread shall be waked up for processing from the 2950 * worker thread context. 2951 **/ 2952void 2953lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 2954{ 2955 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 2956 2957 /* Don't send FCF rediscovery event if timer cancelled */ 2958 spin_lock_irq(&phba->hbalock); 2959 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2960 spin_unlock_irq(&phba->hbalock); 2961 return; 2962 } 2963 /* Clear FCF rediscovery timer pending flag */ 2964 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2965 /* FCF rediscovery event to worker thread */ 2966 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 2967 spin_unlock_irq(&phba->hbalock); 2968 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2969 "2776 FCF rediscover wait timer expired, post " 2970 "a worker thread event for FCF table scan\n"); 2971 /* wake up worker thread */ 2972 lpfc_worker_wake_up(phba); 2973} 2974 2975/** 2976 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support 2977 * @phba: pointer to lpfc hba data structure. 2978 * 2979 * This function uses the QUERY_FW_CFG mailbox command to determine if the 2980 * firmware loaded supports FCoE. A return of zero indicates that the mailbox 2981 * was successful and the firmware supports FCoE. Any other return indicates 2982 * a error. It is assumed that this function will be called before interrupts 2983 * are enabled. 2984 **/ 2985static int 2986lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba) 2987{ 2988 int rc = 0; 2989 LPFC_MBOXQ_t *mboxq; 2990 struct lpfc_mbx_query_fw_cfg *query_fw_cfg; 2991 uint32_t length; 2992 uint32_t shdr_status, shdr_add_status; 2993 2994 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2995 if (!mboxq) { 2996 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2997 "2621 Failed to allocate mbox for " 2998 "query firmware config cmd\n"); 2999 return -ENOMEM; 3000 } 3001 query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg; 3002 length = (sizeof(struct lpfc_mbx_query_fw_cfg) - 3003 sizeof(struct lpfc_sli4_cfg_mhdr)); 3004 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 3005 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 3006 length, LPFC_SLI4_MBX_EMBED); 3007 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 3008 /* The IOCTL status is embedded in the mailbox subheader. */ 3009 shdr_status = bf_get(lpfc_mbox_hdr_status, 3010 &query_fw_cfg->header.cfg_shdr.response); 3011 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 3012 &query_fw_cfg->header.cfg_shdr.response); 3013 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 3014 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3015 "2622 Query Firmware Config failed " 3016 "mbx status x%x, status x%x add_status x%x\n", 3017 rc, shdr_status, shdr_add_status); 3018 return -EINVAL; 3019 } 3020 if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) { 3021 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3022 "2623 FCoE Function not supported by firmware. " 3023 "Function mode = %08x\n", 3024 query_fw_cfg->function_mode); 3025 return -EINVAL; 3026 } 3027 if (rc != MBX_TIMEOUT) 3028 mempool_free(mboxq, phba->mbox_mem_pool); 3029 return 0; 3030} 3031 3032/** 3033 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3034 * @phba: pointer to lpfc hba data structure. 3035 * @acqe_link: pointer to the async link completion queue entry. 3036 * 3037 * This routine is to parse the SLI4 link-attention link fault code and 3038 * translate it into the base driver's read link attention mailbox command 3039 * status. 3040 * 3041 * Return: Link-attention status in terms of base driver's coding. 3042 **/ 3043static uint16_t 3044lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3045 struct lpfc_acqe_link *acqe_link) 3046{ 3047 uint16_t latt_fault; 3048 3049 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3050 case LPFC_ASYNC_LINK_FAULT_NONE: 3051 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3052 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3053 latt_fault = 0; 3054 break; 3055 default: 3056 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3057 "0398 Invalid link fault code: x%x\n", 3058 bf_get(lpfc_acqe_link_fault, acqe_link)); 3059 latt_fault = MBXERR_ERROR; 3060 break; 3061 } 3062 return latt_fault; 3063} 3064 3065/** 3066 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3067 * @phba: pointer to lpfc hba data structure. 3068 * @acqe_link: pointer to the async link completion queue entry. 3069 * 3070 * This routine is to parse the SLI4 link attention type and translate it 3071 * into the base driver's link attention type coding. 3072 * 3073 * Return: Link attention type in terms of base driver's coding. 3074 **/ 3075static uint8_t 3076lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3077 struct lpfc_acqe_link *acqe_link) 3078{ 3079 uint8_t att_type; 3080 3081 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3082 case LPFC_ASYNC_LINK_STATUS_DOWN: 3083 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3084 att_type = AT_LINK_DOWN; 3085 break; 3086 case LPFC_ASYNC_LINK_STATUS_UP: 3087 /* Ignore physical link up events - wait for logical link up */ 3088 att_type = AT_RESERVED; 3089 break; 3090 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3091 att_type = AT_LINK_UP; 3092 break; 3093 default: 3094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3095 "0399 Invalid link attention type: x%x\n", 3096 bf_get(lpfc_acqe_link_status, acqe_link)); 3097 att_type = AT_RESERVED; 3098 break; 3099 } 3100 return att_type; 3101} 3102 3103/** 3104 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3105 * @phba: pointer to lpfc hba data structure. 3106 * @acqe_link: pointer to the async link completion queue entry. 3107 * 3108 * This routine is to parse the SLI4 link-attention link speed and translate 3109 * it into the base driver's link-attention link speed coding. 3110 * 3111 * Return: Link-attention link speed in terms of base driver's coding. 3112 **/ 3113static uint8_t 3114lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3115 struct lpfc_acqe_link *acqe_link) 3116{ 3117 uint8_t link_speed; 3118 3119 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3120 case LPFC_ASYNC_LINK_SPEED_ZERO: 3121 link_speed = LA_UNKNW_LINK; 3122 break; 3123 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3124 link_speed = LA_UNKNW_LINK; 3125 break; 3126 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3127 link_speed = LA_UNKNW_LINK; 3128 break; 3129 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3130 link_speed = LA_1GHZ_LINK; 3131 break; 3132 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3133 link_speed = LA_10GHZ_LINK; 3134 break; 3135 default: 3136 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3137 "0483 Invalid link-attention link speed: x%x\n", 3138 bf_get(lpfc_acqe_link_speed, acqe_link)); 3139 link_speed = LA_UNKNW_LINK; 3140 break; 3141 } 3142 return link_speed; 3143} 3144 3145/** 3146 * lpfc_sli4_async_link_evt - Process the asynchronous link event 3147 * @phba: pointer to lpfc hba data structure. 3148 * @acqe_link: pointer to the async link completion queue entry. 3149 * 3150 * This routine is to handle the SLI4 asynchronous link event. 3151 **/ 3152static void 3153lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3154 struct lpfc_acqe_link *acqe_link) 3155{ 3156 struct lpfc_dmabuf *mp; 3157 LPFC_MBOXQ_t *pmb; 3158 MAILBOX_t *mb; 3159 READ_LA_VAR *la; 3160 uint8_t att_type; 3161 3162 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3163 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP) 3164 return; 3165 phba->fcoe_eventtag = acqe_link->event_tag; 3166 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3167 if (!pmb) { 3168 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3169 "0395 The mboxq allocation failed\n"); 3170 return; 3171 } 3172 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3173 if (!mp) { 3174 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3175 "0396 The lpfc_dmabuf allocation failed\n"); 3176 goto out_free_pmb; 3177 } 3178 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3179 if (!mp->virt) { 3180 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3181 "0397 The mbuf allocation failed\n"); 3182 goto out_free_dmabuf; 3183 } 3184 3185 /* Cleanup any outstanding ELS commands */ 3186 lpfc_els_flush_all_cmd(phba); 3187 3188 /* Block ELS IOCBs until we have done process link event */ 3189 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3190 3191 /* Update link event statistics */ 3192 phba->sli.slistat.link_event++; 3193 3194 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */ 3195 lpfc_read_la(phba, pmb, mp); 3196 pmb->vport = phba->pport; 3197 3198 /* Parse and translate status field */ 3199 mb = &pmb->u.mb; 3200 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3201 3202 /* Parse and translate link attention fields */ 3203 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA; 3204 la->eventTag = acqe_link->event_tag; 3205 la->attType = att_type; 3206 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link); 3207 3208 /* Fake the the following irrelvant fields */ 3209 la->topology = TOPOLOGY_PT_PT; 3210 la->granted_AL_PA = 0; 3211 la->il = 0; 3212 la->pb = 0; 3213 la->fa = 0; 3214 la->mm = 0; 3215 3216 /* Keep the link status for extra SLI4 state machine reference */ 3217 phba->sli4_hba.link_state.speed = 3218 bf_get(lpfc_acqe_link_speed, acqe_link); 3219 phba->sli4_hba.link_state.duplex = 3220 bf_get(lpfc_acqe_link_duplex, acqe_link); 3221 phba->sli4_hba.link_state.status = 3222 bf_get(lpfc_acqe_link_status, acqe_link); 3223 phba->sli4_hba.link_state.physical = 3224 bf_get(lpfc_acqe_link_physical, acqe_link); 3225 phba->sli4_hba.link_state.fault = 3226 bf_get(lpfc_acqe_link_fault, acqe_link); 3227 phba->sli4_hba.link_state.logical_speed = 3228 bf_get(lpfc_acqe_qos_link_speed, acqe_link); 3229 3230 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3231 lpfc_mbx_cmpl_read_la(phba, pmb); 3232 3233 return; 3234 3235out_free_dmabuf: 3236 kfree(mp); 3237out_free_pmb: 3238 mempool_free(pmb, phba->mbox_mem_pool); 3239} 3240 3241/** 3242 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3243 * @vport: pointer to vport data structure. 3244 * 3245 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3246 * response to a CVL event. 3247 * 3248 * Return the pointer to the ndlp with the vport if successful, otherwise 3249 * return NULL. 3250 **/ 3251static struct lpfc_nodelist * 3252lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3253{ 3254 struct lpfc_nodelist *ndlp; 3255 struct Scsi_Host *shost; 3256 struct lpfc_hba *phba; 3257 3258 if (!vport) 3259 return NULL; 3260 phba = vport->phba; 3261 if (!phba) 3262 return NULL; 3263 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3264 if (!ndlp) { 3265 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3266 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3267 if (!ndlp) 3268 return 0; 3269 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3270 /* Set the node type */ 3271 ndlp->nlp_type |= NLP_FABRIC; 3272 /* Put ndlp onto node list */ 3273 lpfc_enqueue_node(vport, ndlp); 3274 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3275 /* re-setup ndlp without removing from node list */ 3276 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3277 if (!ndlp) 3278 return 0; 3279 } 3280 if (phba->pport->port_state <= LPFC_FLOGI) 3281 return NULL; 3282 /* If virtual link is not yet instantiated ignore CVL */ 3283 if (vport->port_state <= LPFC_FDISC) 3284 return NULL; 3285 shost = lpfc_shost_from_vport(vport); 3286 if (!shost) 3287 return NULL; 3288 lpfc_linkdown_port(vport); 3289 lpfc_cleanup_pending_mbox(vport); 3290 spin_lock_irq(shost->host_lock); 3291 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3292 spin_unlock_irq(shost->host_lock); 3293 3294 return ndlp; 3295} 3296 3297/** 3298 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3299 * @vport: pointer to lpfc hba data structure. 3300 * 3301 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3302 * response to a FCF dead event. 3303 **/ 3304static void 3305lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3306{ 3307 struct lpfc_vport **vports; 3308 int i; 3309 3310 vports = lpfc_create_vport_work_array(phba); 3311 if (vports) 3312 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3313 lpfc_sli4_perform_vport_cvl(vports[i]); 3314 lpfc_destroy_vport_work_array(phba, vports); 3315} 3316 3317/** 3318 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event 3319 * @phba: pointer to lpfc hba data structure. 3320 * @acqe_link: pointer to the async fcoe completion queue entry. 3321 * 3322 * This routine is to handle the SLI4 asynchronous fcoe event. 3323 **/ 3324static void 3325lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, 3326 struct lpfc_acqe_fcoe *acqe_fcoe) 3327{ 3328 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe); 3329 int rc; 3330 struct lpfc_vport *vport; 3331 struct lpfc_nodelist *ndlp; 3332 struct Scsi_Host *shost; 3333 int active_vlink_present; 3334 struct lpfc_vport **vports; 3335 int i; 3336 3337 phba->fc_eventTag = acqe_fcoe->event_tag; 3338 phba->fcoe_eventtag = acqe_fcoe->event_tag; 3339 switch (event_type) { 3340 case LPFC_FCOE_EVENT_TYPE_NEW_FCF: 3341 case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD: 3342 if (event_type == LPFC_FCOE_EVENT_TYPE_NEW_FCF) 3343 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3344 LOG_DISCOVERY, 3345 "2546 New FCF found event: " 3346 "evt_tag:x%x, fcf_index:x%x\n", 3347 acqe_fcoe->event_tag, 3348 acqe_fcoe->index); 3349 else 3350 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 3351 LOG_DISCOVERY, 3352 "2788 FCF parameter modified event: " 3353 "evt_tag:x%x, fcf_index:x%x\n", 3354 acqe_fcoe->event_tag, 3355 acqe_fcoe->index); 3356 spin_lock_irq(&phba->hbalock); 3357 if ((phba->fcf.fcf_flag & FCF_SCAN_DONE) || 3358 (phba->hba_flag & FCF_DISC_INPROGRESS)) { 3359 /* 3360 * If the current FCF is in discovered state or 3361 * FCF discovery is in progress, do nothing. 3362 */ 3363 spin_unlock_irq(&phba->hbalock); 3364 break; 3365 } 3366 3367 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 3368 /* 3369 * If fast FCF failover rescan event is pending, 3370 * do nothing. 3371 */ 3372 spin_unlock_irq(&phba->hbalock); 3373 break; 3374 } 3375 spin_unlock_irq(&phba->hbalock); 3376 3377 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && 3378 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 3379 /* 3380 * During period of FCF discovery, read the FCF 3381 * table record indexed by the event to update 3382 * FCF round robin failover eligible FCF bmask. 3383 */ 3384 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3385 LOG_DISCOVERY, 3386 "2779 Read new FCF record with " 3387 "fcf_index:x%x for updating FCF " 3388 "round robin failover bmask\n", 3389 acqe_fcoe->index); 3390 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index); 3391 } 3392 3393 /* Otherwise, scan the entire FCF table and re-discover SAN */ 3394 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3395 "2770 Start FCF table scan due to new FCF " 3396 "event: evt_tag:x%x, fcf_index:x%x\n", 3397 acqe_fcoe->event_tag, acqe_fcoe->index); 3398 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3399 LPFC_FCOE_FCF_GET_FIRST); 3400 if (rc) 3401 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3402 "2547 Issue FCF scan read FCF mailbox " 3403 "command failed 0x%x\n", rc); 3404 break; 3405 3406 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL: 3407 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3408 "2548 FCF Table full count 0x%x tag 0x%x\n", 3409 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe), 3410 acqe_fcoe->event_tag); 3411 break; 3412 3413 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD: 3414 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3415 "2549 FCF disconnected from network index 0x%x" 3416 " tag 0x%x\n", acqe_fcoe->index, 3417 acqe_fcoe->event_tag); 3418 /* If the event is not for currently used fcf do nothing */ 3419 if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index) 3420 break; 3421 /* We request port to rediscover the entire FCF table for 3422 * a fast recovery from case that the current FCF record 3423 * is no longer valid if we are not in the middle of FCF 3424 * failover process already. 3425 */ 3426 spin_lock_irq(&phba->hbalock); 3427 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3428 spin_unlock_irq(&phba->hbalock); 3429 /* Update FLOGI FCF failover eligible FCF bmask */ 3430 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index); 3431 break; 3432 } 3433 /* Mark the fast failover process in progress */ 3434 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 3435 spin_unlock_irq(&phba->hbalock); 3436 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3437 "2771 Start FCF fast failover process due to " 3438 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 3439 "\n", acqe_fcoe->event_tag, acqe_fcoe->index); 3440 rc = lpfc_sli4_redisc_fcf_table(phba); 3441 if (rc) { 3442 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3443 LOG_DISCOVERY, 3444 "2772 Issue FCF rediscover mabilbox " 3445 "command failed, fail through to FCF " 3446 "dead event\n"); 3447 spin_lock_irq(&phba->hbalock); 3448 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 3449 spin_unlock_irq(&phba->hbalock); 3450 /* 3451 * Last resort will fail over by treating this 3452 * as a link down to FCF registration. 3453 */ 3454 lpfc_sli4_fcf_dead_failthrough(phba); 3455 } else 3456 /* Handling fast FCF failover to a DEAD FCF event 3457 * is considered equalivant to receiving CVL to all 3458 * vports. 3459 */ 3460 lpfc_sli4_perform_all_vport_cvl(phba); 3461 break; 3462 case LPFC_FCOE_EVENT_TYPE_CVL: 3463 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3464 "2718 Clear Virtual Link Received for VPI 0x%x" 3465 " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag); 3466 vport = lpfc_find_vport_by_vpid(phba, 3467 acqe_fcoe->index - phba->vpi_base); 3468 ndlp = lpfc_sli4_perform_vport_cvl(vport); 3469 if (!ndlp) 3470 break; 3471 active_vlink_present = 0; 3472 3473 vports = lpfc_create_vport_work_array(phba); 3474 if (vports) { 3475 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 3476 i++) { 3477 if ((!(vports[i]->fc_flag & 3478 FC_VPORT_CVL_RCVD)) && 3479 (vports[i]->port_state > LPFC_FDISC)) { 3480 active_vlink_present = 1; 3481 break; 3482 } 3483 } 3484 lpfc_destroy_vport_work_array(phba, vports); 3485 } 3486 3487 if (active_vlink_present) { 3488 /* 3489 * If there are other active VLinks present, 3490 * re-instantiate the Vlink using FDISC. 3491 */ 3492 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3493 shost = lpfc_shost_from_vport(vport); 3494 spin_lock_irq(shost->host_lock); 3495 ndlp->nlp_flag |= NLP_DELAY_TMO; 3496 spin_unlock_irq(shost->host_lock); 3497 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 3498 vport->port_state = LPFC_FDISC; 3499 } else { 3500 /* 3501 * Otherwise, we request port to rediscover 3502 * the entire FCF table for a fast recovery 3503 * from possible case that the current FCF 3504 * is no longer valid if we are not already 3505 * in the FCF failover process. 3506 */ 3507 spin_lock_irq(&phba->hbalock); 3508 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3509 spin_unlock_irq(&phba->hbalock); 3510 break; 3511 } 3512 /* Mark the fast failover process in progress */ 3513 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 3514 spin_unlock_irq(&phba->hbalock); 3515 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3516 LOG_DISCOVERY, 3517 "2773 Start FCF fast failover due " 3518 "to CVL event: evt_tag:x%x\n", 3519 acqe_fcoe->event_tag); 3520 rc = lpfc_sli4_redisc_fcf_table(phba); 3521 if (rc) { 3522 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3523 LOG_DISCOVERY, 3524 "2774 Issue FCF rediscover " 3525 "mabilbox command failed, " 3526 "through to CVL event\n"); 3527 spin_lock_irq(&phba->hbalock); 3528 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 3529 spin_unlock_irq(&phba->hbalock); 3530 /* 3531 * Last resort will be re-try on the 3532 * the current registered FCF entry. 3533 */ 3534 lpfc_retry_pport_discovery(phba); 3535 } 3536 } 3537 break; 3538 default: 3539 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3540 "0288 Unknown FCoE event type 0x%x event tag " 3541 "0x%x\n", event_type, acqe_fcoe->event_tag); 3542 break; 3543 } 3544} 3545 3546/** 3547 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 3548 * @phba: pointer to lpfc hba data structure. 3549 * @acqe_link: pointer to the async dcbx completion queue entry. 3550 * 3551 * This routine is to handle the SLI4 asynchronous dcbx event. 3552 **/ 3553static void 3554lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 3555 struct lpfc_acqe_dcbx *acqe_dcbx) 3556{ 3557 phba->fc_eventTag = acqe_dcbx->event_tag; 3558 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3559 "0290 The SLI4 DCBX asynchronous event is not " 3560 "handled yet\n"); 3561} 3562 3563/** 3564 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 3565 * @phba: pointer to lpfc hba data structure. 3566 * @acqe_link: pointer to the async grp5 completion queue entry. 3567 * 3568 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 3569 * is an asynchronous notified of a logical link speed change. The Port 3570 * reports the logical link speed in units of 10Mbps. 3571 **/ 3572static void 3573lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 3574 struct lpfc_acqe_grp5 *acqe_grp5) 3575{ 3576 uint16_t prev_ll_spd; 3577 3578 phba->fc_eventTag = acqe_grp5->event_tag; 3579 phba->fcoe_eventtag = acqe_grp5->event_tag; 3580 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 3581 phba->sli4_hba.link_state.logical_speed = 3582 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); 3583 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3584 "2789 GRP5 Async Event: Updating logical link speed " 3585 "from %dMbps to %dMbps\n", (prev_ll_spd * 10), 3586 (phba->sli4_hba.link_state.logical_speed*10)); 3587} 3588 3589/** 3590 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3591 * @phba: pointer to lpfc hba data structure. 3592 * 3593 * This routine is invoked by the worker thread to process all the pending 3594 * SLI4 asynchronous events. 3595 **/ 3596void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3597{ 3598 struct lpfc_cq_event *cq_event; 3599 3600 /* First, declare the async event has been handled */ 3601 spin_lock_irq(&phba->hbalock); 3602 phba->hba_flag &= ~ASYNC_EVENT; 3603 spin_unlock_irq(&phba->hbalock); 3604 /* Now, handle all the async events */ 3605 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3606 /* Get the first event from the head of the event queue */ 3607 spin_lock_irq(&phba->hbalock); 3608 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3609 cq_event, struct lpfc_cq_event, list); 3610 spin_unlock_irq(&phba->hbalock); 3611 /* Process the asynchronous event */ 3612 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3613 case LPFC_TRAILER_CODE_LINK: 3614 lpfc_sli4_async_link_evt(phba, 3615 &cq_event->cqe.acqe_link); 3616 break; 3617 case LPFC_TRAILER_CODE_FCOE: 3618 lpfc_sli4_async_fcoe_evt(phba, 3619 &cq_event->cqe.acqe_fcoe); 3620 break; 3621 case LPFC_TRAILER_CODE_DCBX: 3622 lpfc_sli4_async_dcbx_evt(phba, 3623 &cq_event->cqe.acqe_dcbx); 3624 break; 3625 case LPFC_TRAILER_CODE_GRP5: 3626 lpfc_sli4_async_grp5_evt(phba, 3627 &cq_event->cqe.acqe_grp5); 3628 break; 3629 default: 3630 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3631 "1804 Invalid asynchrous event code: " 3632 "x%x\n", bf_get(lpfc_trailer_code, 3633 &cq_event->cqe.mcqe_cmpl)); 3634 break; 3635 } 3636 /* Free the completion event processed to the free pool */ 3637 lpfc_sli4_cq_event_release(phba, cq_event); 3638 } 3639} 3640 3641/** 3642 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 3643 * @phba: pointer to lpfc hba data structure. 3644 * 3645 * This routine is invoked by the worker thread to process FCF table 3646 * rediscovery pending completion event. 3647 **/ 3648void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 3649{ 3650 int rc; 3651 3652 spin_lock_irq(&phba->hbalock); 3653 /* Clear FCF rediscovery timeout event */ 3654 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 3655 /* Clear driver fast failover FCF record flag */ 3656 phba->fcf.failover_rec.flag = 0; 3657 /* Set state for FCF fast failover */ 3658 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 3659 spin_unlock_irq(&phba->hbalock); 3660 3661 /* Scan FCF table from the first entry to re-discover SAN */ 3662 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3663 "2777 Start FCF table scan after FCF " 3664 "rediscovery quiescent period over\n"); 3665 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 3666 if (rc) 3667 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3668 "2747 Issue FCF scan read FCF mailbox " 3669 "command failed 0x%x\n", rc); 3670} 3671 3672/** 3673 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3674 * @phba: pointer to lpfc hba data structure. 3675 * @dev_grp: The HBA PCI-Device group number. 3676 * 3677 * This routine is invoked to set up the per HBA PCI-Device group function 3678 * API jump table entries. 3679 * 3680 * Return: 0 if success, otherwise -ENODEV 3681 **/ 3682int 3683lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3684{ 3685 int rc; 3686 3687 /* Set up lpfc PCI-device group */ 3688 phba->pci_dev_grp = dev_grp; 3689 3690 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3691 if (dev_grp == LPFC_PCI_DEV_OC) 3692 phba->sli_rev = LPFC_SLI_REV4; 3693 3694 /* Set up device INIT API function jump table */ 3695 rc = lpfc_init_api_table_setup(phba, dev_grp); 3696 if (rc) 3697 return -ENODEV; 3698 /* Set up SCSI API function jump table */ 3699 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3700 if (rc) 3701 return -ENODEV; 3702 /* Set up SLI API function jump table */ 3703 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3704 if (rc) 3705 return -ENODEV; 3706 /* Set up MBOX API function jump table */ 3707 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3708 if (rc) 3709 return -ENODEV; 3710 3711 return 0; 3712} 3713 3714/** 3715 * lpfc_log_intr_mode - Log the active interrupt mode 3716 * @phba: pointer to lpfc hba data structure. 3717 * @intr_mode: active interrupt mode adopted. 3718 * 3719 * This routine it invoked to log the currently used active interrupt mode 3720 * to the device. 3721 **/ 3722static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3723{ 3724 switch (intr_mode) { 3725 case 0: 3726 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3727 "0470 Enable INTx interrupt mode.\n"); 3728 break; 3729 case 1: 3730 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3731 "0481 Enabled MSI interrupt mode.\n"); 3732 break; 3733 case 2: 3734 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3735 "0480 Enabled MSI-X interrupt mode.\n"); 3736 break; 3737 default: 3738 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3739 "0482 Illegal interrupt mode.\n"); 3740 break; 3741 } 3742 return; 3743} 3744 3745/** 3746 * lpfc_enable_pci_dev - Enable a generic PCI device. 3747 * @phba: pointer to lpfc hba data structure. 3748 * 3749 * This routine is invoked to enable the PCI device that is common to all 3750 * PCI devices. 3751 * 3752 * Return codes 3753 * 0 - successful 3754 * other values - error 3755 **/ 3756static int 3757lpfc_enable_pci_dev(struct lpfc_hba *phba) 3758{ 3759 struct pci_dev *pdev; 3760 int bars; 3761 3762 /* Obtain PCI device reference */ 3763 if (!phba->pcidev) 3764 goto out_error; 3765 else 3766 pdev = phba->pcidev; 3767 /* Select PCI BARs */ 3768 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3769 /* Enable PCI device */ 3770 if (pci_enable_device_mem(pdev)) 3771 goto out_error; 3772 /* Request PCI resource for the device */ 3773 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3774 goto out_disable_device; 3775 /* Set up device as PCI master and save state for EEH */ 3776 pci_set_master(pdev); 3777 pci_try_set_mwi(pdev); 3778 pci_save_state(pdev); 3779 3780 return 0; 3781 3782out_disable_device: 3783 pci_disable_device(pdev); 3784out_error: 3785 return -ENODEV; 3786} 3787 3788/** 3789 * lpfc_disable_pci_dev - Disable a generic PCI device. 3790 * @phba: pointer to lpfc hba data structure. 3791 * 3792 * This routine is invoked to disable the PCI device that is common to all 3793 * PCI devices. 3794 **/ 3795static void 3796lpfc_disable_pci_dev(struct lpfc_hba *phba) 3797{ 3798 struct pci_dev *pdev; 3799 int bars; 3800 3801 /* Obtain PCI device reference */ 3802 if (!phba->pcidev) 3803 return; 3804 else 3805 pdev = phba->pcidev; 3806 /* Select PCI BARs */ 3807 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3808 /* Release PCI resource and disable PCI device */ 3809 pci_release_selected_regions(pdev, bars); 3810 pci_disable_device(pdev); 3811 /* Null out PCI private reference to driver */ 3812 pci_set_drvdata(pdev, NULL); 3813 3814 return; 3815} 3816 3817/** 3818 * lpfc_reset_hba - Reset a hba 3819 * @phba: pointer to lpfc hba data structure. 3820 * 3821 * This routine is invoked to reset a hba device. It brings the HBA 3822 * offline, performs a board restart, and then brings the board back 3823 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 3824 * on outstanding mailbox commands. 3825 **/ 3826void 3827lpfc_reset_hba(struct lpfc_hba *phba) 3828{ 3829 /* If resets are disabled then set error state and return. */ 3830 if (!phba->cfg_enable_hba_reset) { 3831 phba->link_state = LPFC_HBA_ERROR; 3832 return; 3833 } 3834 lpfc_offline_prep(phba); 3835 lpfc_offline(phba); 3836 lpfc_sli_brdrestart(phba); 3837 lpfc_online(phba); 3838 lpfc_unblock_mgmt_io(phba); 3839} 3840 3841/** 3842 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 3843 * @phba: pointer to lpfc hba data structure. 3844 * 3845 * This routine is invoked to set up the driver internal resources specific to 3846 * support the SLI-3 HBA device it attached to. 3847 * 3848 * Return codes 3849 * 0 - successful 3850 * other values - error 3851 **/ 3852static int 3853lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 3854{ 3855 struct lpfc_sli *psli; 3856 3857 /* 3858 * Initialize timers used by driver 3859 */ 3860 3861 /* Heartbeat timer */ 3862 init_timer(&phba->hb_tmofunc); 3863 phba->hb_tmofunc.function = lpfc_hb_timeout; 3864 phba->hb_tmofunc.data = (unsigned long)phba; 3865 3866 psli = &phba->sli; 3867 /* MBOX heartbeat timer */ 3868 init_timer(&psli->mbox_tmo); 3869 psli->mbox_tmo.function = lpfc_mbox_timeout; 3870 psli->mbox_tmo.data = (unsigned long) phba; 3871 /* FCP polling mode timer */ 3872 init_timer(&phba->fcp_poll_timer); 3873 phba->fcp_poll_timer.function = lpfc_poll_timeout; 3874 phba->fcp_poll_timer.data = (unsigned long) phba; 3875 /* Fabric block timer */ 3876 init_timer(&phba->fabric_block_timer); 3877 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3878 phba->fabric_block_timer.data = (unsigned long) phba; 3879 /* EA polling mode timer */ 3880 init_timer(&phba->eratt_poll); 3881 phba->eratt_poll.function = lpfc_poll_eratt; 3882 phba->eratt_poll.data = (unsigned long) phba; 3883 3884 /* Host attention work mask setup */ 3885 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 3886 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 3887 3888 /* Get all the module params for configuring this host */ 3889 lpfc_get_cfgparam(phba); 3890 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 3891 phba->menlo_flag |= HBA_MENLO_SUPPORT; 3892 /* check for menlo minimum sg count */ 3893 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 3894 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 3895 } 3896 3897 /* 3898 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3899 * used to create the sg_dma_buf_pool must be dynamically calculated. 3900 * 2 segments are added since the IOCB needs a command and response bde. 3901 */ 3902 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 3903 sizeof(struct fcp_rsp) + 3904 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 3905 3906 if (phba->cfg_enable_bg) { 3907 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 3908 phba->cfg_sg_dma_buf_size += 3909 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 3910 } 3911 3912 /* Also reinitialize the host templates with new values. */ 3913 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3914 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3915 3916 phba->max_vpi = LPFC_MAX_VPI; 3917 /* This will be set to correct value after config_port mbox */ 3918 phba->max_vports = 0; 3919 3920 /* 3921 * Initialize the SLI Layer to run with lpfc HBAs. 3922 */ 3923 lpfc_sli_setup(phba); 3924 lpfc_sli_queue_setup(phba); 3925 3926 /* Allocate device driver memory */ 3927 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 3928 return -ENOMEM; 3929 3930 return 0; 3931} 3932 3933/** 3934 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 3935 * @phba: pointer to lpfc hba data structure. 3936 * 3937 * This routine is invoked to unset the driver internal resources set up 3938 * specific for supporting the SLI-3 HBA device it attached to. 3939 **/ 3940static void 3941lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 3942{ 3943 /* Free device driver memory allocated */ 3944 lpfc_mem_free_all(phba); 3945 3946 return; 3947} 3948 3949/** 3950 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 3951 * @phba: pointer to lpfc hba data structure. 3952 * 3953 * This routine is invoked to set up the driver internal resources specific to 3954 * support the SLI-4 HBA device it attached to. 3955 * 3956 * Return codes 3957 * 0 - successful 3958 * other values - error 3959 **/ 3960static int 3961lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 3962{ 3963 struct lpfc_sli *psli; 3964 LPFC_MBOXQ_t *mboxq; 3965 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 3966 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 3967 struct lpfc_mqe *mqe; 3968 int longs; 3969 3970 /* Before proceed, wait for POST done and device ready */ 3971 rc = lpfc_sli4_post_status_check(phba); 3972 if (rc) 3973 return -ENODEV; 3974 3975 /* 3976 * Initialize timers used by driver 3977 */ 3978 3979 /* Heartbeat timer */ 3980 init_timer(&phba->hb_tmofunc); 3981 phba->hb_tmofunc.function = lpfc_hb_timeout; 3982 phba->hb_tmofunc.data = (unsigned long)phba; 3983 3984 psli = &phba->sli; 3985 /* MBOX heartbeat timer */ 3986 init_timer(&psli->mbox_tmo); 3987 psli->mbox_tmo.function = lpfc_mbox_timeout; 3988 psli->mbox_tmo.data = (unsigned long) phba; 3989 /* Fabric block timer */ 3990 init_timer(&phba->fabric_block_timer); 3991 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3992 phba->fabric_block_timer.data = (unsigned long) phba; 3993 /* EA polling mode timer */ 3994 init_timer(&phba->eratt_poll); 3995 phba->eratt_poll.function = lpfc_poll_eratt; 3996 phba->eratt_poll.data = (unsigned long) phba; 3997 /* FCF rediscover timer */ 3998 init_timer(&phba->fcf.redisc_wait); 3999 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4000 phba->fcf.redisc_wait.data = (unsigned long)phba; 4001 4002 /* 4003 * We need to do a READ_CONFIG mailbox command here before 4004 * calling lpfc_get_cfgparam. For VFs this will report the 4005 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 4006 * All of the resources allocated 4007 * for this Port are tied to these values. 4008 */ 4009 /* Get all the module params for configuring this host */ 4010 lpfc_get_cfgparam(phba); 4011 phba->max_vpi = LPFC_MAX_VPI; 4012 /* This will be set to correct value after the read_config mbox */ 4013 phba->max_vports = 0; 4014 4015 /* Program the default value of vlan_id and fc_map */ 4016 phba->valid_vlan = 0; 4017 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4018 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4019 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4020 4021 /* 4022 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4023 * used to create the sg_dma_buf_pool must be dynamically calculated. 4024 * 2 segments are added since the IOCB needs a command and response bde. 4025 * To insure that the scsi sgl does not cross a 4k page boundary only 4026 * sgl sizes of must be a power of 2. 4027 */ 4028 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 4029 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge))); 4030 /* Feature Level 1 hardware is limited to 2 pages */ 4031 if ((bf_get(lpfc_sli_intf_featurelevel1, &phba->sli4_hba.sli_intf) == 4032 LPFC_SLI_INTF_FEATURELEVEL1_1)) 4033 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4034 else 4035 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4036 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4037 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4038 dma_buf_size = dma_buf_size << 1) 4039 ; 4040 if (dma_buf_size == max_buf_size) 4041 phba->cfg_sg_seg_cnt = (dma_buf_size - 4042 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4043 (2 * sizeof(struct sli4_sge))) / 4044 sizeof(struct sli4_sge); 4045 phba->cfg_sg_dma_buf_size = dma_buf_size; 4046 4047 /* Initialize buffer queue management fields */ 4048 hbq_count = lpfc_sli_hbq_count(); 4049 for (i = 0; i < hbq_count; ++i) 4050 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4051 INIT_LIST_HEAD(&phba->rb_pend_list); 4052 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4053 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4054 4055 /* 4056 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4057 */ 4058 /* Initialize the Abort scsi buffer list used by driver */ 4059 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4060 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4061 /* This abort list used by worker thread */ 4062 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4063 4064 /* 4065 * Initialize dirver internal slow-path work queues 4066 */ 4067 4068 /* Driver internel slow-path CQ Event pool */ 4069 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4070 /* Response IOCB work queue list */ 4071 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4072 /* Asynchronous event CQ Event work queue list */ 4073 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4074 /* Fast-path XRI aborted CQ Event work queue list */ 4075 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4076 /* Slow-path XRI aborted CQ Event work queue list */ 4077 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4078 /* Receive queue CQ Event work queue list */ 4079 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4080 4081 /* Initialize the driver internal SLI layer lists. */ 4082 lpfc_sli_setup(phba); 4083 lpfc_sli_queue_setup(phba); 4084 4085 /* Allocate device driver memory */ 4086 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4087 if (rc) 4088 return -ENOMEM; 4089 4090 /* Create the bootstrap mailbox command */ 4091 rc = lpfc_create_bootstrap_mbox(phba); 4092 if (unlikely(rc)) 4093 goto out_free_mem; 4094 4095 /* Set up the host's endian order with the device. */ 4096 rc = lpfc_setup_endian_order(phba); 4097 if (unlikely(rc)) 4098 goto out_free_bsmbx; 4099 4100 rc = lpfc_sli4_fw_cfg_check(phba); 4101 if (unlikely(rc)) 4102 goto out_free_bsmbx; 4103 4104 /* Set up the hba's configuration parameters. */ 4105 rc = lpfc_sli4_read_config(phba); 4106 if (unlikely(rc)) 4107 goto out_free_bsmbx; 4108 4109 /* Perform a function reset */ 4110 rc = lpfc_pci_function_reset(phba); 4111 if (unlikely(rc)) 4112 goto out_free_bsmbx; 4113 4114 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4115 GFP_KERNEL); 4116 if (!mboxq) { 4117 rc = -ENOMEM; 4118 goto out_free_bsmbx; 4119 } 4120 4121 /* Get the Supported Pages. It is always available. */ 4122 lpfc_supported_pages(mboxq); 4123 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4124 if (unlikely(rc)) { 4125 rc = -EIO; 4126 mempool_free(mboxq, phba->mbox_mem_pool); 4127 goto out_free_bsmbx; 4128 } 4129 4130 mqe = &mboxq->u.mqe; 4131 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4132 LPFC_MAX_SUPPORTED_PAGES); 4133 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4134 switch (pn_page[i]) { 4135 case LPFC_SLI4_PARAMETERS: 4136 phba->sli4_hba.pc_sli4_params.supported = 1; 4137 break; 4138 default: 4139 break; 4140 } 4141 } 4142 4143 /* Read the port's SLI4 Parameters capabilities if supported. */ 4144 if (phba->sli4_hba.pc_sli4_params.supported) 4145 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4146 mempool_free(mboxq, phba->mbox_mem_pool); 4147 if (rc) { 4148 rc = -EIO; 4149 goto out_free_bsmbx; 4150 } 4151 /* Create all the SLI4 queues */ 4152 rc = lpfc_sli4_queue_create(phba); 4153 if (rc) 4154 goto out_free_bsmbx; 4155 4156 /* Create driver internal CQE event pool */ 4157 rc = lpfc_sli4_cq_event_pool_create(phba); 4158 if (rc) 4159 goto out_destroy_queue; 4160 4161 /* Initialize and populate the iocb list per host */ 4162 rc = lpfc_init_sgl_list(phba); 4163 if (rc) { 4164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4165 "1400 Failed to initialize sgl list.\n"); 4166 goto out_destroy_cq_event_pool; 4167 } 4168 rc = lpfc_init_active_sgl_array(phba); 4169 if (rc) { 4170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4171 "1430 Failed to initialize sgl list.\n"); 4172 goto out_free_sgl_list; 4173 } 4174 4175 rc = lpfc_sli4_init_rpi_hdrs(phba); 4176 if (rc) { 4177 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4178 "1432 Failed to initialize rpi headers.\n"); 4179 goto out_free_active_sgl; 4180 } 4181 4182 /* Allocate eligible FCF bmask memory for FCF round robin failover */ 4183 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 4184 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 4185 GFP_KERNEL); 4186 if (!phba->fcf.fcf_rr_bmask) { 4187 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4188 "2759 Failed allocate memory for FCF round " 4189 "robin failover bmask\n"); 4190 goto out_remove_rpi_hdrs; 4191 } 4192 4193 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 4194 phba->cfg_fcp_eq_count), GFP_KERNEL); 4195 if (!phba->sli4_hba.fcp_eq_hdl) { 4196 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4197 "2572 Failed allocate memory for fast-path " 4198 "per-EQ handle array\n"); 4199 goto out_free_fcf_rr_bmask; 4200 } 4201 4202 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 4203 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 4204 if (!phba->sli4_hba.msix_entries) { 4205 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4206 "2573 Failed allocate memory for msi-x " 4207 "interrupt vector entries\n"); 4208 goto out_free_fcp_eq_hdl; 4209 } 4210 4211 return rc; 4212 4213out_free_fcp_eq_hdl: 4214 kfree(phba->sli4_hba.fcp_eq_hdl); 4215out_free_fcf_rr_bmask: 4216 kfree(phba->fcf.fcf_rr_bmask); 4217out_remove_rpi_hdrs: 4218 lpfc_sli4_remove_rpi_hdrs(phba); 4219out_free_active_sgl: 4220 lpfc_free_active_sgl(phba); 4221out_free_sgl_list: 4222 lpfc_free_sgl_list(phba); 4223out_destroy_cq_event_pool: 4224 lpfc_sli4_cq_event_pool_destroy(phba); 4225out_destroy_queue: 4226 lpfc_sli4_queue_destroy(phba); 4227out_free_bsmbx: 4228 lpfc_destroy_bootstrap_mbox(phba); 4229out_free_mem: 4230 lpfc_mem_free(phba); 4231 return rc; 4232} 4233 4234/** 4235 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 4236 * @phba: pointer to lpfc hba data structure. 4237 * 4238 * This routine is invoked to unset the driver internal resources set up 4239 * specific for supporting the SLI-4 HBA device it attached to. 4240 **/ 4241static void 4242lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 4243{ 4244 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4245 4246 /* unregister default FCFI from the HBA */ 4247 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi); 4248 4249 /* Free the default FCR table */ 4250 lpfc_sli_remove_dflt_fcf(phba); 4251 4252 /* Free memory allocated for msi-x interrupt vector entries */ 4253 kfree(phba->sli4_hba.msix_entries); 4254 4255 /* Free memory allocated for fast-path work queue handles */ 4256 kfree(phba->sli4_hba.fcp_eq_hdl); 4257 4258 /* Free the allocated rpi headers. */ 4259 lpfc_sli4_remove_rpi_hdrs(phba); 4260 lpfc_sli4_remove_rpis(phba); 4261 4262 /* Free eligible FCF index bmask */ 4263 kfree(phba->fcf.fcf_rr_bmask); 4264 4265 /* Free the ELS sgl list */ 4266 lpfc_free_active_sgl(phba); 4267 lpfc_free_sgl_list(phba); 4268 4269 /* Free the SCSI sgl management array */ 4270 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4271 4272 /* Free the SLI4 queues */ 4273 lpfc_sli4_queue_destroy(phba); 4274 4275 /* Free the completion queue EQ event pool */ 4276 lpfc_sli4_cq_event_release_all(phba); 4277 lpfc_sli4_cq_event_pool_destroy(phba); 4278 4279 /* Reset SLI4 HBA FCoE function */ 4280 lpfc_pci_function_reset(phba); 4281 4282 /* Free the bsmbx region. */ 4283 lpfc_destroy_bootstrap_mbox(phba); 4284 4285 /* Free the SLI Layer memory with SLI4 HBAs */ 4286 lpfc_mem_free_all(phba); 4287 4288 /* Free the current connect table */ 4289 list_for_each_entry_safe(conn_entry, next_conn_entry, 4290 &phba->fcf_conn_rec_list, list) { 4291 list_del_init(&conn_entry->list); 4292 kfree(conn_entry); 4293 } 4294 4295 return; 4296} 4297 4298/** 4299 * lpfc_init_api_table_setup - Set up init api fucntion jump table 4300 * @phba: The hba struct for which this call is being executed. 4301 * @dev_grp: The HBA PCI-Device group number. 4302 * 4303 * This routine sets up the device INIT interface API function jump table 4304 * in @phba struct. 4305 * 4306 * Returns: 0 - success, -ENODEV - failure. 4307 **/ 4308int 4309lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4310{ 4311 phba->lpfc_hba_init_link = lpfc_hba_init_link; 4312 phba->lpfc_hba_down_link = lpfc_hba_down_link; 4313 switch (dev_grp) { 4314 case LPFC_PCI_DEV_LP: 4315 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 4316 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 4317 phba->lpfc_stop_port = lpfc_stop_port_s3; 4318 break; 4319 case LPFC_PCI_DEV_OC: 4320 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 4321 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 4322 phba->lpfc_stop_port = lpfc_stop_port_s4; 4323 break; 4324 default: 4325 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4326 "1431 Invalid HBA PCI-device group: 0x%x\n", 4327 dev_grp); 4328 return -ENODEV; 4329 break; 4330 } 4331 return 0; 4332} 4333 4334/** 4335 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 4336 * @phba: pointer to lpfc hba data structure. 4337 * 4338 * This routine is invoked to set up the driver internal resources before the 4339 * device specific resource setup to support the HBA device it attached to. 4340 * 4341 * Return codes 4342 * 0 - successful 4343 * other values - error 4344 **/ 4345static int 4346lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 4347{ 4348 /* 4349 * Driver resources common to all SLI revisions 4350 */ 4351 atomic_set(&phba->fast_event_count, 0); 4352 spin_lock_init(&phba->hbalock); 4353 4354 /* Initialize ndlp management spinlock */ 4355 spin_lock_init(&phba->ndlp_lock); 4356 4357 INIT_LIST_HEAD(&phba->port_list); 4358 INIT_LIST_HEAD(&phba->work_list); 4359 init_waitqueue_head(&phba->wait_4_mlo_m_q); 4360 4361 /* Initialize the wait queue head for the kernel thread */ 4362 init_waitqueue_head(&phba->work_waitq); 4363 4364 /* Initialize the scsi buffer list used by driver for scsi IO */ 4365 spin_lock_init(&phba->scsi_buf_list_lock); 4366 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 4367 4368 /* Initialize the fabric iocb list */ 4369 INIT_LIST_HEAD(&phba->fabric_iocb_list); 4370 4371 /* Initialize list to save ELS buffers */ 4372 INIT_LIST_HEAD(&phba->elsbuf); 4373 4374 /* Initialize FCF connection rec list */ 4375 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 4376 4377 return 0; 4378} 4379 4380/** 4381 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 4382 * @phba: pointer to lpfc hba data structure. 4383 * 4384 * This routine is invoked to set up the driver internal resources after the 4385 * device specific resource setup to support the HBA device it attached to. 4386 * 4387 * Return codes 4388 * 0 - successful 4389 * other values - error 4390 **/ 4391static int 4392lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 4393{ 4394 int error; 4395 4396 /* Startup the kernel thread for this host adapter. */ 4397 phba->worker_thread = kthread_run(lpfc_do_work, phba, 4398 "lpfc_worker_%d", phba->brd_no); 4399 if (IS_ERR(phba->worker_thread)) { 4400 error = PTR_ERR(phba->worker_thread); 4401 return error; 4402 } 4403 4404 return 0; 4405} 4406 4407/** 4408 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 4409 * @phba: pointer to lpfc hba data structure. 4410 * 4411 * This routine is invoked to unset the driver internal resources set up after 4412 * the device specific resource setup for supporting the HBA device it 4413 * attached to. 4414 **/ 4415static void 4416lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 4417{ 4418 /* Stop kernel worker thread */ 4419 kthread_stop(phba->worker_thread); 4420} 4421 4422/** 4423 * lpfc_free_iocb_list - Free iocb list. 4424 * @phba: pointer to lpfc hba data structure. 4425 * 4426 * This routine is invoked to free the driver's IOCB list and memory. 4427 **/ 4428static void 4429lpfc_free_iocb_list(struct lpfc_hba *phba) 4430{ 4431 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 4432 4433 spin_lock_irq(&phba->hbalock); 4434 list_for_each_entry_safe(iocbq_entry, iocbq_next, 4435 &phba->lpfc_iocb_list, list) { 4436 list_del(&iocbq_entry->list); 4437 kfree(iocbq_entry); 4438 phba->total_iocbq_bufs--; 4439 } 4440 spin_unlock_irq(&phba->hbalock); 4441 4442 return; 4443} 4444 4445/** 4446 * lpfc_init_iocb_list - Allocate and initialize iocb list. 4447 * @phba: pointer to lpfc hba data structure. 4448 * 4449 * This routine is invoked to allocate and initizlize the driver's IOCB 4450 * list and set up the IOCB tag array accordingly. 4451 * 4452 * Return codes 4453 * 0 - successful 4454 * other values - error 4455 **/ 4456static int 4457lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 4458{ 4459 struct lpfc_iocbq *iocbq_entry = NULL; 4460 uint16_t iotag; 4461 int i; 4462 4463 /* Initialize and populate the iocb list per host. */ 4464 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 4465 for (i = 0; i < iocb_count; i++) { 4466 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 4467 if (iocbq_entry == NULL) { 4468 printk(KERN_ERR "%s: only allocated %d iocbs of " 4469 "expected %d count. Unloading driver.\n", 4470 __func__, i, LPFC_IOCB_LIST_CNT); 4471 goto out_free_iocbq; 4472 } 4473 4474 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 4475 if (iotag == 0) { 4476 kfree(iocbq_entry); 4477 printk(KERN_ERR "%s: failed to allocate IOTAG. " 4478 "Unloading driver.\n", __func__); 4479 goto out_free_iocbq; 4480 } 4481 iocbq_entry->sli4_xritag = NO_XRI; 4482 4483 spin_lock_irq(&phba->hbalock); 4484 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 4485 phba->total_iocbq_bufs++; 4486 spin_unlock_irq(&phba->hbalock); 4487 } 4488 4489 return 0; 4490 4491out_free_iocbq: 4492 lpfc_free_iocb_list(phba); 4493 4494 return -ENOMEM; 4495} 4496 4497/** 4498 * lpfc_free_sgl_list - Free sgl list. 4499 * @phba: pointer to lpfc hba data structure. 4500 * 4501 * This routine is invoked to free the driver's sgl list and memory. 4502 **/ 4503static void 4504lpfc_free_sgl_list(struct lpfc_hba *phba) 4505{ 4506 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 4507 LIST_HEAD(sglq_list); 4508 int rc = 0; 4509 4510 spin_lock_irq(&phba->hbalock); 4511 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 4512 spin_unlock_irq(&phba->hbalock); 4513 4514 list_for_each_entry_safe(sglq_entry, sglq_next, 4515 &sglq_list, list) { 4516 list_del(&sglq_entry->list); 4517 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 4518 kfree(sglq_entry); 4519 phba->sli4_hba.total_sglq_bufs--; 4520 } 4521 rc = lpfc_sli4_remove_all_sgl_pages(phba); 4522 if (rc) { 4523 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4524 "2005 Unable to deregister pages from HBA: %x\n", rc); 4525 } 4526 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4527} 4528 4529/** 4530 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 4531 * @phba: pointer to lpfc hba data structure. 4532 * 4533 * This routine is invoked to allocate the driver's active sgl memory. 4534 * This array will hold the sglq_entry's for active IOs. 4535 **/ 4536static int 4537lpfc_init_active_sgl_array(struct lpfc_hba *phba) 4538{ 4539 int size; 4540 size = sizeof(struct lpfc_sglq *); 4541 size *= phba->sli4_hba.max_cfg_param.max_xri; 4542 4543 phba->sli4_hba.lpfc_sglq_active_list = 4544 kzalloc(size, GFP_KERNEL); 4545 if (!phba->sli4_hba.lpfc_sglq_active_list) 4546 return -ENOMEM; 4547 return 0; 4548} 4549 4550/** 4551 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 4552 * @phba: pointer to lpfc hba data structure. 4553 * 4554 * This routine is invoked to walk through the array of active sglq entries 4555 * and free all of the resources. 4556 * This is just a place holder for now. 4557 **/ 4558static void 4559lpfc_free_active_sgl(struct lpfc_hba *phba) 4560{ 4561 kfree(phba->sli4_hba.lpfc_sglq_active_list); 4562} 4563 4564/** 4565 * lpfc_init_sgl_list - Allocate and initialize sgl list. 4566 * @phba: pointer to lpfc hba data structure. 4567 * 4568 * This routine is invoked to allocate and initizlize the driver's sgl 4569 * list and set up the sgl xritag tag array accordingly. 4570 * 4571 * Return codes 4572 * 0 - successful 4573 * other values - error 4574 **/ 4575static int 4576lpfc_init_sgl_list(struct lpfc_hba *phba) 4577{ 4578 struct lpfc_sglq *sglq_entry = NULL; 4579 int i; 4580 int els_xri_cnt; 4581 4582 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 4583 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4584 "2400 lpfc_init_sgl_list els %d.\n", 4585 els_xri_cnt); 4586 /* Initialize and populate the sglq list per host/VF. */ 4587 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 4588 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 4589 4590 /* Sanity check on XRI management */ 4591 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 4592 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4593 "2562 No room left for SCSI XRI allocation: " 4594 "max_xri=%d, els_xri=%d\n", 4595 phba->sli4_hba.max_cfg_param.max_xri, 4596 els_xri_cnt); 4597 return -ENOMEM; 4598 } 4599 4600 /* Allocate memory for the ELS XRI management array */ 4601 phba->sli4_hba.lpfc_els_sgl_array = 4602 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 4603 GFP_KERNEL); 4604 4605 if (!phba->sli4_hba.lpfc_els_sgl_array) { 4606 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4607 "2401 Failed to allocate memory for ELS " 4608 "XRI management array of size %d.\n", 4609 els_xri_cnt); 4610 return -ENOMEM; 4611 } 4612 4613 /* Keep the SCSI XRI into the XRI management array */ 4614 phba->sli4_hba.scsi_xri_max = 4615 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 4616 phba->sli4_hba.scsi_xri_cnt = 0; 4617 4618 phba->sli4_hba.lpfc_scsi_psb_array = 4619 kzalloc((sizeof(struct lpfc_scsi_buf *) * 4620 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 4621 4622 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 4623 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4624 "2563 Failed to allocate memory for SCSI " 4625 "XRI management array of size %d.\n", 4626 phba->sli4_hba.scsi_xri_max); 4627 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4628 return -ENOMEM; 4629 } 4630 4631 for (i = 0; i < els_xri_cnt; i++) { 4632 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 4633 if (sglq_entry == NULL) { 4634 printk(KERN_ERR "%s: only allocated %d sgls of " 4635 "expected %d count. Unloading driver.\n", 4636 __func__, i, els_xri_cnt); 4637 goto out_free_mem; 4638 } 4639 4640 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba); 4641 if (sglq_entry->sli4_xritag == NO_XRI) { 4642 kfree(sglq_entry); 4643 printk(KERN_ERR "%s: failed to allocate XRI.\n" 4644 "Unloading driver.\n", __func__); 4645 goto out_free_mem; 4646 } 4647 sglq_entry->buff_type = GEN_BUFF_TYPE; 4648 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 4649 if (sglq_entry->virt == NULL) { 4650 kfree(sglq_entry); 4651 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 4652 "Unloading driver.\n", __func__); 4653 goto out_free_mem; 4654 } 4655 sglq_entry->sgl = sglq_entry->virt; 4656 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 4657 4658 /* The list order is used by later block SGL registraton */ 4659 spin_lock_irq(&phba->hbalock); 4660 sglq_entry->state = SGL_FREED; 4661 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 4662 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 4663 phba->sli4_hba.total_sglq_bufs++; 4664 spin_unlock_irq(&phba->hbalock); 4665 } 4666 return 0; 4667 4668out_free_mem: 4669 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4670 lpfc_free_sgl_list(phba); 4671 return -ENOMEM; 4672} 4673 4674/** 4675 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 4676 * @phba: pointer to lpfc hba data structure. 4677 * 4678 * This routine is invoked to post rpi header templates to the 4679 * HBA consistent with the SLI-4 interface spec. This routine 4680 * posts a PAGE_SIZE memory region to the port to hold up to 4681 * PAGE_SIZE modulo 64 rpi context headers. 4682 * No locks are held here because this is an initialization routine 4683 * called only from probe or lpfc_online when interrupts are not 4684 * enabled and the driver is reinitializing the device. 4685 * 4686 * Return codes 4687 * 0 - successful 4688 * ENOMEM - No availble memory 4689 * EIO - The mailbox failed to complete successfully. 4690 **/ 4691int 4692lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 4693{ 4694 int rc = 0; 4695 int longs; 4696 uint16_t rpi_count; 4697 struct lpfc_rpi_hdr *rpi_hdr; 4698 4699 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 4700 4701 /* 4702 * Provision an rpi bitmask range for discovery. The total count 4703 * is the difference between max and base + 1. 4704 */ 4705 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base + 4706 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4707 4708 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG; 4709 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long), 4710 GFP_KERNEL); 4711 if (!phba->sli4_hba.rpi_bmask) 4712 return -ENOMEM; 4713 4714 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 4715 if (!rpi_hdr) { 4716 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 4717 "0391 Error during rpi post operation\n"); 4718 lpfc_sli4_remove_rpis(phba); 4719 rc = -ENODEV; 4720 } 4721 4722 return rc; 4723} 4724 4725/** 4726 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 4727 * @phba: pointer to lpfc hba data structure. 4728 * 4729 * This routine is invoked to allocate a single 4KB memory region to 4730 * support rpis and stores them in the phba. This single region 4731 * provides support for up to 64 rpis. The region is used globally 4732 * by the device. 4733 * 4734 * Returns: 4735 * A valid rpi hdr on success. 4736 * A NULL pointer on any failure. 4737 **/ 4738struct lpfc_rpi_hdr * 4739lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 4740{ 4741 uint16_t rpi_limit, curr_rpi_range; 4742 struct lpfc_dmabuf *dmabuf; 4743 struct lpfc_rpi_hdr *rpi_hdr; 4744 4745 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 4746 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4747 4748 spin_lock_irq(&phba->hbalock); 4749 curr_rpi_range = phba->sli4_hba.next_rpi; 4750 spin_unlock_irq(&phba->hbalock); 4751 4752 /* 4753 * The port has a limited number of rpis. The increment here 4754 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 4755 * and to allow the full max_rpi range per port. 4756 */ 4757 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 4758 return NULL; 4759 4760 /* 4761 * First allocate the protocol header region for the port. The 4762 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 4763 */ 4764 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4765 if (!dmabuf) 4766 return NULL; 4767 4768 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4769 LPFC_HDR_TEMPLATE_SIZE, 4770 &dmabuf->phys, 4771 GFP_KERNEL); 4772 if (!dmabuf->virt) { 4773 rpi_hdr = NULL; 4774 goto err_free_dmabuf; 4775 } 4776 4777 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 4778 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 4779 rpi_hdr = NULL; 4780 goto err_free_coherent; 4781 } 4782 4783 /* Save the rpi header data for cleanup later. */ 4784 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 4785 if (!rpi_hdr) 4786 goto err_free_coherent; 4787 4788 rpi_hdr->dmabuf = dmabuf; 4789 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 4790 rpi_hdr->page_count = 1; 4791 spin_lock_irq(&phba->hbalock); 4792 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi; 4793 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 4794 4795 /* 4796 * The next_rpi stores the next module-64 rpi value to post 4797 * in any subsequent rpi memory region postings. 4798 */ 4799 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT; 4800 spin_unlock_irq(&phba->hbalock); 4801 return rpi_hdr; 4802 4803 err_free_coherent: 4804 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 4805 dmabuf->virt, dmabuf->phys); 4806 err_free_dmabuf: 4807 kfree(dmabuf); 4808 return NULL; 4809} 4810 4811/** 4812 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 4813 * @phba: pointer to lpfc hba data structure. 4814 * 4815 * This routine is invoked to remove all memory resources allocated 4816 * to support rpis. This routine presumes the caller has released all 4817 * rpis consumed by fabric or port logins and is prepared to have 4818 * the header pages removed. 4819 **/ 4820void 4821lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 4822{ 4823 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 4824 4825 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 4826 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 4827 list_del(&rpi_hdr->list); 4828 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 4829 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 4830 kfree(rpi_hdr->dmabuf); 4831 kfree(rpi_hdr); 4832 } 4833 4834 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4835 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask)); 4836} 4837 4838/** 4839 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 4840 * @pdev: pointer to pci device data structure. 4841 * 4842 * This routine is invoked to allocate the driver hba data structure for an 4843 * HBA device. If the allocation is successful, the phba reference to the 4844 * PCI device data structure is set. 4845 * 4846 * Return codes 4847 * pointer to @phba - successful 4848 * NULL - error 4849 **/ 4850static struct lpfc_hba * 4851lpfc_hba_alloc(struct pci_dev *pdev) 4852{ 4853 struct lpfc_hba *phba; 4854 4855 /* Allocate memory for HBA structure */ 4856 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 4857 if (!phba) { 4858 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 4859 return NULL; 4860 } 4861 4862 /* Set reference to PCI device in HBA structure */ 4863 phba->pcidev = pdev; 4864 4865 /* Assign an unused board number */ 4866 phba->brd_no = lpfc_get_instance(); 4867 if (phba->brd_no < 0) { 4868 kfree(phba); 4869 return NULL; 4870 } 4871 4872 spin_lock_init(&phba->ct_ev_lock); 4873 INIT_LIST_HEAD(&phba->ct_ev_waiters); 4874 4875 return phba; 4876} 4877 4878/** 4879 * lpfc_hba_free - Free driver hba data structure with a device. 4880 * @phba: pointer to lpfc hba data structure. 4881 * 4882 * This routine is invoked to free the driver hba data structure with an 4883 * HBA device. 4884 **/ 4885static void 4886lpfc_hba_free(struct lpfc_hba *phba) 4887{ 4888 /* Release the driver assigned board number */ 4889 idr_remove(&lpfc_hba_index, phba->brd_no); 4890 4891 kfree(phba); 4892 return; 4893} 4894 4895/** 4896 * lpfc_create_shost - Create hba physical port with associated scsi host. 4897 * @phba: pointer to lpfc hba data structure. 4898 * 4899 * This routine is invoked to create HBA physical port and associate a SCSI 4900 * host with it. 4901 * 4902 * Return codes 4903 * 0 - successful 4904 * other values - error 4905 **/ 4906static int 4907lpfc_create_shost(struct lpfc_hba *phba) 4908{ 4909 struct lpfc_vport *vport; 4910 struct Scsi_Host *shost; 4911 4912 /* Initialize HBA FC structure */ 4913 phba->fc_edtov = FF_DEF_EDTOV; 4914 phba->fc_ratov = FF_DEF_RATOV; 4915 phba->fc_altov = FF_DEF_ALTOV; 4916 phba->fc_arbtov = FF_DEF_ARBTOV; 4917 4918 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 4919 if (!vport) 4920 return -ENODEV; 4921 4922 shost = lpfc_shost_from_vport(vport); 4923 phba->pport = vport; 4924 lpfc_debugfs_initialize(vport); 4925 /* Put reference to SCSI host to driver's device private data */ 4926 pci_set_drvdata(phba->pcidev, shost); 4927 4928 return 0; 4929} 4930 4931/** 4932 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 4933 * @phba: pointer to lpfc hba data structure. 4934 * 4935 * This routine is invoked to destroy HBA physical port and the associated 4936 * SCSI host. 4937 **/ 4938static void 4939lpfc_destroy_shost(struct lpfc_hba *phba) 4940{ 4941 struct lpfc_vport *vport = phba->pport; 4942 4943 /* Destroy physical port that associated with the SCSI host */ 4944 destroy_port(vport); 4945 4946 return; 4947} 4948 4949/** 4950 * lpfc_setup_bg - Setup Block guard structures and debug areas. 4951 * @phba: pointer to lpfc hba data structure. 4952 * @shost: the shost to be used to detect Block guard settings. 4953 * 4954 * This routine sets up the local Block guard protocol settings for @shost. 4955 * This routine also allocates memory for debugging bg buffers. 4956 **/ 4957static void 4958lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 4959{ 4960 int pagecnt = 10; 4961 if (lpfc_prot_mask && lpfc_prot_guard) { 4962 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4963 "1478 Registering BlockGuard with the " 4964 "SCSI layer\n"); 4965 scsi_host_set_prot(shost, lpfc_prot_mask); 4966 scsi_host_set_guard(shost, lpfc_prot_guard); 4967 } 4968 if (!_dump_buf_data) { 4969 while (pagecnt) { 4970 spin_lock_init(&_dump_buf_lock); 4971 _dump_buf_data = 4972 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4973 if (_dump_buf_data) { 4974 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4975 "9043 BLKGRD: allocated %d pages for " 4976 "_dump_buf_data at 0x%p\n", 4977 (1 << pagecnt), _dump_buf_data); 4978 _dump_buf_data_order = pagecnt; 4979 memset(_dump_buf_data, 0, 4980 ((1 << PAGE_SHIFT) << pagecnt)); 4981 break; 4982 } else 4983 --pagecnt; 4984 } 4985 if (!_dump_buf_data_order) 4986 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4987 "9044 BLKGRD: ERROR unable to allocate " 4988 "memory for hexdump\n"); 4989 } else 4990 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4991 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 4992 "\n", _dump_buf_data); 4993 if (!_dump_buf_dif) { 4994 while (pagecnt) { 4995 _dump_buf_dif = 4996 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4997 if (_dump_buf_dif) { 4998 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4999 "9046 BLKGRD: allocated %d pages for " 5000 "_dump_buf_dif at 0x%p\n", 5001 (1 << pagecnt), _dump_buf_dif); 5002 _dump_buf_dif_order = pagecnt; 5003 memset(_dump_buf_dif, 0, 5004 ((1 << PAGE_SHIFT) << pagecnt)); 5005 break; 5006 } else 5007 --pagecnt; 5008 } 5009 if (!_dump_buf_dif_order) 5010 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5011 "9047 BLKGRD: ERROR unable to allocate " 5012 "memory for hexdump\n"); 5013 } else 5014 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5015 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 5016 _dump_buf_dif); 5017} 5018 5019/** 5020 * lpfc_post_init_setup - Perform necessary device post initialization setup. 5021 * @phba: pointer to lpfc hba data structure. 5022 * 5023 * This routine is invoked to perform all the necessary post initialization 5024 * setup for the device. 5025 **/ 5026static void 5027lpfc_post_init_setup(struct lpfc_hba *phba) 5028{ 5029 struct Scsi_Host *shost; 5030 struct lpfc_adapter_event_header adapter_event; 5031 5032 /* Get the default values for Model Name and Description */ 5033 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5034 5035 /* 5036 * hba setup may have changed the hba_queue_depth so we need to 5037 * adjust the value of can_queue. 5038 */ 5039 shost = pci_get_drvdata(phba->pcidev); 5040 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5041 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5042 lpfc_setup_bg(phba, shost); 5043 5044 lpfc_host_attrib_init(shost); 5045 5046 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5047 spin_lock_irq(shost->host_lock); 5048 lpfc_poll_start_timer(phba); 5049 spin_unlock_irq(shost->host_lock); 5050 } 5051 5052 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5053 "0428 Perform SCSI scan\n"); 5054 /* Send board arrival event to upper layer */ 5055 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5056 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5057 fc_host_post_vendor_event(shost, fc_get_event_number(), 5058 sizeof(adapter_event), 5059 (char *) &adapter_event, 5060 LPFC_NL_VENDOR_ID); 5061 return; 5062} 5063 5064/** 5065 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5066 * @phba: pointer to lpfc hba data structure. 5067 * 5068 * This routine is invoked to set up the PCI device memory space for device 5069 * with SLI-3 interface spec. 5070 * 5071 * Return codes 5072 * 0 - successful 5073 * other values - error 5074 **/ 5075static int 5076lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5077{ 5078 struct pci_dev *pdev; 5079 unsigned long bar0map_len, bar2map_len; 5080 int i, hbq_count; 5081 void *ptr; 5082 int error = -ENODEV; 5083 5084 /* Obtain PCI device reference */ 5085 if (!phba->pcidev) 5086 return error; 5087 else 5088 pdev = phba->pcidev; 5089 5090 /* Set the device DMA mask size */ 5091 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5092 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5093 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5094 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5095 return error; 5096 } 5097 } 5098 5099 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5100 * required by each mapping. 5101 */ 5102 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5103 bar0map_len = pci_resource_len(pdev, 0); 5104 5105 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5106 bar2map_len = pci_resource_len(pdev, 2); 5107 5108 /* Map HBA SLIM to a kernel virtual address. */ 5109 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5110 if (!phba->slim_memmap_p) { 5111 dev_printk(KERN_ERR, &pdev->dev, 5112 "ioremap failed for SLIM memory.\n"); 5113 goto out; 5114 } 5115 5116 /* Map HBA Control Registers to a kernel virtual address. */ 5117 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5118 if (!phba->ctrl_regs_memmap_p) { 5119 dev_printk(KERN_ERR, &pdev->dev, 5120 "ioremap failed for HBA control registers.\n"); 5121 goto out_iounmap_slim; 5122 } 5123 5124 /* Allocate memory for SLI-2 structures */ 5125 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5126 SLI2_SLIM_SIZE, 5127 &phba->slim2p.phys, 5128 GFP_KERNEL); 5129 if (!phba->slim2p.virt) 5130 goto out_iounmap; 5131 5132 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5133 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5134 phba->mbox_ext = (phba->slim2p.virt + 5135 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5136 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5137 phba->IOCBs = (phba->slim2p.virt + 5138 offsetof(struct lpfc_sli2_slim, IOCBs)); 5139 5140 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5141 lpfc_sli_hbq_size(), 5142 &phba->hbqslimp.phys, 5143 GFP_KERNEL); 5144 if (!phba->hbqslimp.virt) 5145 goto out_free_slim; 5146 5147 hbq_count = lpfc_sli_hbq_count(); 5148 ptr = phba->hbqslimp.virt; 5149 for (i = 0; i < hbq_count; ++i) { 5150 phba->hbqs[i].hbq_virt = ptr; 5151 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5152 ptr += (lpfc_hbq_defs[i]->entry_count * 5153 sizeof(struct lpfc_hbq_entry)); 5154 } 5155 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5156 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5157 5158 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5159 5160 INIT_LIST_HEAD(&phba->rb_pend_list); 5161 5162 phba->MBslimaddr = phba->slim_memmap_p; 5163 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 5164 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 5165 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 5166 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 5167 5168 return 0; 5169 5170out_free_slim: 5171 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5172 phba->slim2p.virt, phba->slim2p.phys); 5173out_iounmap: 5174 iounmap(phba->ctrl_regs_memmap_p); 5175out_iounmap_slim: 5176 iounmap(phba->slim_memmap_p); 5177out: 5178 return error; 5179} 5180 5181/** 5182 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 5183 * @phba: pointer to lpfc hba data structure. 5184 * 5185 * This routine is invoked to unset the PCI device memory space for device 5186 * with SLI-3 interface spec. 5187 **/ 5188static void 5189lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 5190{ 5191 struct pci_dev *pdev; 5192 5193 /* Obtain PCI device reference */ 5194 if (!phba->pcidev) 5195 return; 5196 else 5197 pdev = phba->pcidev; 5198 5199 /* Free coherent DMA memory allocated */ 5200 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 5201 phba->hbqslimp.virt, phba->hbqslimp.phys); 5202 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5203 phba->slim2p.virt, phba->slim2p.phys); 5204 5205 /* I/O memory unmap */ 5206 iounmap(phba->ctrl_regs_memmap_p); 5207 iounmap(phba->slim_memmap_p); 5208 5209 return; 5210} 5211 5212/** 5213 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 5214 * @phba: pointer to lpfc hba data structure. 5215 * 5216 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 5217 * done and check status. 5218 * 5219 * Return 0 if successful, otherwise -ENODEV. 5220 **/ 5221int 5222lpfc_sli4_post_status_check(struct lpfc_hba *phba) 5223{ 5224 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg; 5225 int i, port_error = -ENODEV; 5226 5227 if (!phba->sli4_hba.STAregaddr) 5228 return -ENODEV; 5229 5230 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 5231 for (i = 0; i < 3000; i++) { 5232 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr); 5233 /* Encounter fatal POST error, break out */ 5234 if (bf_get(lpfc_hst_state_perr, &sta_reg)) { 5235 port_error = -ENODEV; 5236 break; 5237 } 5238 if (LPFC_POST_STAGE_ARMFW_READY == 5239 bf_get(lpfc_hst_state_port_status, &sta_reg)) { 5240 port_error = 0; 5241 break; 5242 } 5243 msleep(10); 5244 } 5245 5246 if (port_error) 5247 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5248 "1408 Failure HBA POST Status: sta_reg=0x%x, " 5249 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, " 5250 "dl=x%x, pstatus=x%x\n", sta_reg.word0, 5251 bf_get(lpfc_hst_state_perr, &sta_reg), 5252 bf_get(lpfc_hst_state_sfi, &sta_reg), 5253 bf_get(lpfc_hst_state_nip, &sta_reg), 5254 bf_get(lpfc_hst_state_ipc, &sta_reg), 5255 bf_get(lpfc_hst_state_xrom, &sta_reg), 5256 bf_get(lpfc_hst_state_dl, &sta_reg), 5257 bf_get(lpfc_hst_state_port_status, &sta_reg)); 5258 5259 /* Log device information */ 5260 phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr); 5261 if (bf_get(lpfc_sli_intf_valid, 5262 &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) { 5263 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5264 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, " 5265 "FeatureL1=0x%x, FeatureL2=0x%x\n", 5266 bf_get(lpfc_sli_intf_sli_family, 5267 &phba->sli4_hba.sli_intf), 5268 bf_get(lpfc_sli_intf_slirev, 5269 &phba->sli4_hba.sli_intf), 5270 bf_get(lpfc_sli_intf_featurelevel1, 5271 &phba->sli4_hba.sli_intf), 5272 bf_get(lpfc_sli_intf_featurelevel2, 5273 &phba->sli4_hba.sli_intf)); 5274 } 5275 phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr); 5276 phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr); 5277 /* With uncoverable error, log the error message and return error */ 5278 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr); 5279 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr); 5280 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 5281 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 5282 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5283 "1422 HBA Unrecoverable error: " 5284 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " 5285 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n", 5286 uerrlo_reg.word0, uerrhi_reg.word0, 5287 phba->sli4_hba.ue_mask_lo, 5288 phba->sli4_hba.ue_mask_hi); 5289 return -ENODEV; 5290 } 5291 5292 return port_error; 5293} 5294 5295/** 5296 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 5297 * @phba: pointer to lpfc hba data structure. 5298 * 5299 * This routine is invoked to set up SLI4 BAR0 PCI config space register 5300 * memory map. 5301 **/ 5302static void 5303lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba) 5304{ 5305 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 5306 LPFC_UERR_STATUS_LO; 5307 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 5308 LPFC_UERR_STATUS_HI; 5309 phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 5310 LPFC_UE_MASK_LO; 5311 phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 5312 LPFC_UE_MASK_HI; 5313 phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p + 5314 LPFC_SLI_INTF; 5315} 5316 5317/** 5318 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 5319 * @phba: pointer to lpfc hba data structure. 5320 * 5321 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 5322 * memory map. 5323 **/ 5324static void 5325lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 5326{ 5327 5328 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5329 LPFC_HST_STATE; 5330 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5331 LPFC_HST_ISR0; 5332 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5333 LPFC_HST_IMR0; 5334 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5335 LPFC_HST_ISCR0; 5336 return; 5337} 5338 5339/** 5340 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 5341 * @phba: pointer to lpfc hba data structure. 5342 * @vf: virtual function number 5343 * 5344 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 5345 * based on the given viftual function number, @vf. 5346 * 5347 * Return 0 if successful, otherwise -ENODEV. 5348 **/ 5349static int 5350lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 5351{ 5352 if (vf > LPFC_VIR_FUNC_MAX) 5353 return -ENODEV; 5354 5355 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5356 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 5357 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5358 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 5359 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5360 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 5361 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5362 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 5363 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5364 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 5365 return 0; 5366} 5367 5368/** 5369 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 5370 * @phba: pointer to lpfc hba data structure. 5371 * 5372 * This routine is invoked to create the bootstrap mailbox 5373 * region consistent with the SLI-4 interface spec. This 5374 * routine allocates all memory necessary to communicate 5375 * mailbox commands to the port and sets up all alignment 5376 * needs. No locks are expected to be held when calling 5377 * this routine. 5378 * 5379 * Return codes 5380 * 0 - successful 5381 * ENOMEM - could not allocated memory. 5382 **/ 5383static int 5384lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 5385{ 5386 uint32_t bmbx_size; 5387 struct lpfc_dmabuf *dmabuf; 5388 struct dma_address *dma_address; 5389 uint32_t pa_addr; 5390 uint64_t phys_addr; 5391 5392 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5393 if (!dmabuf) 5394 return -ENOMEM; 5395 5396 /* 5397 * The bootstrap mailbox region is comprised of 2 parts 5398 * plus an alignment restriction of 16 bytes. 5399 */ 5400 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 5401 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5402 bmbx_size, 5403 &dmabuf->phys, 5404 GFP_KERNEL); 5405 if (!dmabuf->virt) { 5406 kfree(dmabuf); 5407 return -ENOMEM; 5408 } 5409 memset(dmabuf->virt, 0, bmbx_size); 5410 5411 /* 5412 * Initialize the bootstrap mailbox pointers now so that the register 5413 * operations are simple later. The mailbox dma address is required 5414 * to be 16-byte aligned. Also align the virtual memory as each 5415 * maibox is copied into the bmbx mailbox region before issuing the 5416 * command to the port. 5417 */ 5418 phba->sli4_hba.bmbx.dmabuf = dmabuf; 5419 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 5420 5421 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 5422 LPFC_ALIGN_16_BYTE); 5423 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 5424 LPFC_ALIGN_16_BYTE); 5425 5426 /* 5427 * Set the high and low physical addresses now. The SLI4 alignment 5428 * requirement is 16 bytes and the mailbox is posted to the port 5429 * as two 30-bit addresses. The other data is a bit marking whether 5430 * the 30-bit address is the high or low address. 5431 * Upcast bmbx aphys to 64bits so shift instruction compiles 5432 * clean on 32 bit machines. 5433 */ 5434 dma_address = &phba->sli4_hba.bmbx.dma_address; 5435 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 5436 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 5437 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 5438 LPFC_BMBX_BIT1_ADDR_HI); 5439 5440 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 5441 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 5442 LPFC_BMBX_BIT1_ADDR_LO); 5443 return 0; 5444} 5445 5446/** 5447 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 5448 * @phba: pointer to lpfc hba data structure. 5449 * 5450 * This routine is invoked to teardown the bootstrap mailbox 5451 * region and release all host resources. This routine requires 5452 * the caller to ensure all mailbox commands recovered, no 5453 * additional mailbox comands are sent, and interrupts are disabled 5454 * before calling this routine. 5455 * 5456 **/ 5457static void 5458lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 5459{ 5460 dma_free_coherent(&phba->pcidev->dev, 5461 phba->sli4_hba.bmbx.bmbx_size, 5462 phba->sli4_hba.bmbx.dmabuf->virt, 5463 phba->sli4_hba.bmbx.dmabuf->phys); 5464 5465 kfree(phba->sli4_hba.bmbx.dmabuf); 5466 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 5467} 5468 5469/** 5470 * lpfc_sli4_read_config - Get the config parameters. 5471 * @phba: pointer to lpfc hba data structure. 5472 * 5473 * This routine is invoked to read the configuration parameters from the HBA. 5474 * The configuration parameters are used to set the base and maximum values 5475 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 5476 * allocation for the port. 5477 * 5478 * Return codes 5479 * 0 - successful 5480 * ENOMEM - No availble memory 5481 * EIO - The mailbox failed to complete successfully. 5482 **/ 5483static int 5484lpfc_sli4_read_config(struct lpfc_hba *phba) 5485{ 5486 LPFC_MBOXQ_t *pmb; 5487 struct lpfc_mbx_read_config *rd_config; 5488 uint32_t rc = 0; 5489 5490 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5491 if (!pmb) { 5492 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5493 "2011 Unable to allocate memory for issuing " 5494 "SLI_CONFIG_SPECIAL mailbox command\n"); 5495 return -ENOMEM; 5496 } 5497 5498 lpfc_read_config(phba, pmb); 5499 5500 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 5501 if (rc != MBX_SUCCESS) { 5502 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5503 "2012 Mailbox failed , mbxCmd x%x " 5504 "READ_CONFIG, mbxStatus x%x\n", 5505 bf_get(lpfc_mqe_command, &pmb->u.mqe), 5506 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 5507 rc = -EIO; 5508 } else { 5509 rd_config = &pmb->u.mqe.un.rd_config; 5510 phba->sli4_hba.max_cfg_param.max_xri = 5511 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 5512 phba->sli4_hba.max_cfg_param.xri_base = 5513 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 5514 phba->sli4_hba.max_cfg_param.max_vpi = 5515 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 5516 phba->sli4_hba.max_cfg_param.vpi_base = 5517 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 5518 phba->sli4_hba.max_cfg_param.max_rpi = 5519 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 5520 phba->sli4_hba.max_cfg_param.rpi_base = 5521 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 5522 phba->sli4_hba.max_cfg_param.max_vfi = 5523 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 5524 phba->sli4_hba.max_cfg_param.vfi_base = 5525 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 5526 phba->sli4_hba.max_cfg_param.max_fcfi = 5527 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 5528 phba->sli4_hba.max_cfg_param.fcfi_base = 5529 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config); 5530 phba->sli4_hba.max_cfg_param.max_eq = 5531 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 5532 phba->sli4_hba.max_cfg_param.max_rq = 5533 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 5534 phba->sli4_hba.max_cfg_param.max_wq = 5535 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 5536 phba->sli4_hba.max_cfg_param.max_cq = 5537 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 5538 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 5539 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 5540 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 5541 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 5542 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 5543 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 5544 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 5545 phba->max_vports = phba->max_vpi; 5546 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5547 "2003 cfg params XRI(B:%d M:%d), " 5548 "VPI(B:%d M:%d) " 5549 "VFI(B:%d M:%d) " 5550 "RPI(B:%d M:%d) " 5551 "FCFI(B:%d M:%d)\n", 5552 phba->sli4_hba.max_cfg_param.xri_base, 5553 phba->sli4_hba.max_cfg_param.max_xri, 5554 phba->sli4_hba.max_cfg_param.vpi_base, 5555 phba->sli4_hba.max_cfg_param.max_vpi, 5556 phba->sli4_hba.max_cfg_param.vfi_base, 5557 phba->sli4_hba.max_cfg_param.max_vfi, 5558 phba->sli4_hba.max_cfg_param.rpi_base, 5559 phba->sli4_hba.max_cfg_param.max_rpi, 5560 phba->sli4_hba.max_cfg_param.fcfi_base, 5561 phba->sli4_hba.max_cfg_param.max_fcfi); 5562 } 5563 mempool_free(pmb, phba->mbox_mem_pool); 5564 5565 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 5566 if (phba->cfg_hba_queue_depth > 5567 (phba->sli4_hba.max_cfg_param.max_xri - 5568 lpfc_sli4_get_els_iocb_cnt(phba))) 5569 phba->cfg_hba_queue_depth = 5570 phba->sli4_hba.max_cfg_param.max_xri - 5571 lpfc_sli4_get_els_iocb_cnt(phba); 5572 return rc; 5573} 5574 5575/** 5576 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order. 5577 * @phba: pointer to lpfc hba data structure. 5578 * 5579 * This routine is invoked to setup the host-side endian order to the 5580 * HBA consistent with the SLI-4 interface spec. 5581 * 5582 * Return codes 5583 * 0 - successful 5584 * ENOMEM - No availble memory 5585 * EIO - The mailbox failed to complete successfully. 5586 **/ 5587static int 5588lpfc_setup_endian_order(struct lpfc_hba *phba) 5589{ 5590 LPFC_MBOXQ_t *mboxq; 5591 uint32_t rc = 0; 5592 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 5593 HOST_ENDIAN_HIGH_WORD1}; 5594 5595 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5596 if (!mboxq) { 5597 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5598 "0492 Unable to allocate memory for issuing " 5599 "SLI_CONFIG_SPECIAL mailbox command\n"); 5600 return -ENOMEM; 5601 } 5602 5603 /* 5604 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two 5605 * words to contain special data values and no other data. 5606 */ 5607 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 5608 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 5609 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5610 if (rc != MBX_SUCCESS) { 5611 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5612 "0493 SLI_CONFIG_SPECIAL mailbox failed with " 5613 "status x%x\n", 5614 rc); 5615 rc = -EIO; 5616 } 5617 5618 mempool_free(mboxq, phba->mbox_mem_pool); 5619 return rc; 5620} 5621 5622/** 5623 * lpfc_sli4_queue_create - Create all the SLI4 queues 5624 * @phba: pointer to lpfc hba data structure. 5625 * 5626 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 5627 * operation. For each SLI4 queue type, the parameters such as queue entry 5628 * count (queue depth) shall be taken from the module parameter. For now, 5629 * we just use some constant number as place holder. 5630 * 5631 * Return codes 5632 * 0 - successful 5633 * ENOMEM - No availble memory 5634 * EIO - The mailbox failed to complete successfully. 5635 **/ 5636static int 5637lpfc_sli4_queue_create(struct lpfc_hba *phba) 5638{ 5639 struct lpfc_queue *qdesc; 5640 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5641 int cfg_fcp_wq_count; 5642 int cfg_fcp_eq_count; 5643 5644 /* 5645 * Sanity check for confiugred queue parameters against the run-time 5646 * device parameters 5647 */ 5648 5649 /* Sanity check on FCP fast-path WQ parameters */ 5650 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 5651 if (cfg_fcp_wq_count > 5652 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 5653 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 5654 LPFC_SP_WQN_DEF; 5655 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 5656 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5657 "2581 Not enough WQs (%d) from " 5658 "the pci function for supporting " 5659 "FCP WQs (%d)\n", 5660 phba->sli4_hba.max_cfg_param.max_wq, 5661 phba->cfg_fcp_wq_count); 5662 goto out_error; 5663 } 5664 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5665 "2582 Not enough WQs (%d) from the pci " 5666 "function for supporting the requested " 5667 "FCP WQs (%d), the actual FCP WQs can " 5668 "be supported: %d\n", 5669 phba->sli4_hba.max_cfg_param.max_wq, 5670 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 5671 } 5672 /* The actual number of FCP work queues adopted */ 5673 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 5674 5675 /* Sanity check on FCP fast-path EQ parameters */ 5676 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 5677 if (cfg_fcp_eq_count > 5678 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 5679 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 5680 LPFC_SP_EQN_DEF; 5681 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 5682 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5683 "2574 Not enough EQs (%d) from the " 5684 "pci function for supporting FCP " 5685 "EQs (%d)\n", 5686 phba->sli4_hba.max_cfg_param.max_eq, 5687 phba->cfg_fcp_eq_count); 5688 goto out_error; 5689 } 5690 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5691 "2575 Not enough EQs (%d) from the pci " 5692 "function for supporting the requested " 5693 "FCP EQs (%d), the actual FCP EQs can " 5694 "be supported: %d\n", 5695 phba->sli4_hba.max_cfg_param.max_eq, 5696 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 5697 } 5698 /* It does not make sense to have more EQs than WQs */ 5699 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 5700 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5701 "2593 The FCP EQ count(%d) cannot be greater " 5702 "than the FCP WQ count(%d), limiting the " 5703 "FCP EQ count to %d\n", cfg_fcp_eq_count, 5704 phba->cfg_fcp_wq_count, 5705 phba->cfg_fcp_wq_count); 5706 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 5707 } 5708 /* The actual number of FCP event queues adopted */ 5709 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 5710 /* The overall number of event queues used */ 5711 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 5712 5713 /* 5714 * Create Event Queues (EQs) 5715 */ 5716 5717 /* Get EQ depth from module parameter, fake the default for now */ 5718 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 5719 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 5720 5721 /* Create slow path event queue */ 5722 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5723 phba->sli4_hba.eq_ecount); 5724 if (!qdesc) { 5725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5726 "0496 Failed allocate slow-path EQ\n"); 5727 goto out_error; 5728 } 5729 phba->sli4_hba.sp_eq = qdesc; 5730 5731 /* Create fast-path FCP Event Queue(s) */ 5732 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 5733 phba->cfg_fcp_eq_count), GFP_KERNEL); 5734 if (!phba->sli4_hba.fp_eq) { 5735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5736 "2576 Failed allocate memory for fast-path " 5737 "EQ record array\n"); 5738 goto out_free_sp_eq; 5739 } 5740 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5741 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5742 phba->sli4_hba.eq_ecount); 5743 if (!qdesc) { 5744 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5745 "0497 Failed allocate fast-path EQ\n"); 5746 goto out_free_fp_eq; 5747 } 5748 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 5749 } 5750 5751 /* 5752 * Create Complete Queues (CQs) 5753 */ 5754 5755 /* Get CQ depth from module parameter, fake the default for now */ 5756 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 5757 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 5758 5759 /* Create slow-path Mailbox Command Complete Queue */ 5760 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5761 phba->sli4_hba.cq_ecount); 5762 if (!qdesc) { 5763 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5764 "0500 Failed allocate slow-path mailbox CQ\n"); 5765 goto out_free_fp_eq; 5766 } 5767 phba->sli4_hba.mbx_cq = qdesc; 5768 5769 /* Create slow-path ELS Complete Queue */ 5770 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5771 phba->sli4_hba.cq_ecount); 5772 if (!qdesc) { 5773 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5774 "0501 Failed allocate slow-path ELS CQ\n"); 5775 goto out_free_mbx_cq; 5776 } 5777 phba->sli4_hba.els_cq = qdesc; 5778 5779 5780 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ 5781 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 5782 phba->cfg_fcp_eq_count), GFP_KERNEL); 5783 if (!phba->sli4_hba.fcp_cq) { 5784 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5785 "2577 Failed allocate memory for fast-path " 5786 "CQ record array\n"); 5787 goto out_free_els_cq; 5788 } 5789 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5790 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5791 phba->sli4_hba.cq_ecount); 5792 if (!qdesc) { 5793 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5794 "0499 Failed allocate fast-path FCP " 5795 "CQ (%d)\n", fcp_cqidx); 5796 goto out_free_fcp_cq; 5797 } 5798 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 5799 } 5800 5801 /* Create Mailbox Command Queue */ 5802 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 5803 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 5804 5805 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 5806 phba->sli4_hba.mq_ecount); 5807 if (!qdesc) { 5808 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5809 "0505 Failed allocate slow-path MQ\n"); 5810 goto out_free_fcp_cq; 5811 } 5812 phba->sli4_hba.mbx_wq = qdesc; 5813 5814 /* 5815 * Create all the Work Queues (WQs) 5816 */ 5817 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 5818 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 5819 5820 /* Create slow-path ELS Work Queue */ 5821 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5822 phba->sli4_hba.wq_ecount); 5823 if (!qdesc) { 5824 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5825 "0504 Failed allocate slow-path ELS WQ\n"); 5826 goto out_free_mbx_wq; 5827 } 5828 phba->sli4_hba.els_wq = qdesc; 5829 5830 /* Create fast-path FCP Work Queue(s) */ 5831 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 5832 phba->cfg_fcp_wq_count), GFP_KERNEL); 5833 if (!phba->sli4_hba.fcp_wq) { 5834 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5835 "2578 Failed allocate memory for fast-path " 5836 "WQ record array\n"); 5837 goto out_free_els_wq; 5838 } 5839 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5840 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5841 phba->sli4_hba.wq_ecount); 5842 if (!qdesc) { 5843 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5844 "0503 Failed allocate fast-path FCP " 5845 "WQ (%d)\n", fcp_wqidx); 5846 goto out_free_fcp_wq; 5847 } 5848 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 5849 } 5850 5851 /* 5852 * Create Receive Queue (RQ) 5853 */ 5854 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 5855 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 5856 5857 /* Create Receive Queue for header */ 5858 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5859 phba->sli4_hba.rq_ecount); 5860 if (!qdesc) { 5861 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5862 "0506 Failed allocate receive HRQ\n"); 5863 goto out_free_fcp_wq; 5864 } 5865 phba->sli4_hba.hdr_rq = qdesc; 5866 5867 /* Create Receive Queue for data */ 5868 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5869 phba->sli4_hba.rq_ecount); 5870 if (!qdesc) { 5871 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5872 "0507 Failed allocate receive DRQ\n"); 5873 goto out_free_hdr_rq; 5874 } 5875 phba->sli4_hba.dat_rq = qdesc; 5876 5877 return 0; 5878 5879out_free_hdr_rq: 5880 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5881 phba->sli4_hba.hdr_rq = NULL; 5882out_free_fcp_wq: 5883 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 5884 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 5885 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 5886 } 5887 kfree(phba->sli4_hba.fcp_wq); 5888out_free_els_wq: 5889 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5890 phba->sli4_hba.els_wq = NULL; 5891out_free_mbx_wq: 5892 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5893 phba->sli4_hba.mbx_wq = NULL; 5894out_free_fcp_cq: 5895 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 5896 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 5897 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 5898 } 5899 kfree(phba->sli4_hba.fcp_cq); 5900out_free_els_cq: 5901 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5902 phba->sli4_hba.els_cq = NULL; 5903out_free_mbx_cq: 5904 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5905 phba->sli4_hba.mbx_cq = NULL; 5906out_free_fp_eq: 5907 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 5908 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 5909 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 5910 } 5911 kfree(phba->sli4_hba.fp_eq); 5912out_free_sp_eq: 5913 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5914 phba->sli4_hba.sp_eq = NULL; 5915out_error: 5916 return -ENOMEM; 5917} 5918 5919/** 5920 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 5921 * @phba: pointer to lpfc hba data structure. 5922 * 5923 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 5924 * operation. 5925 * 5926 * Return codes 5927 * 0 - successful 5928 * ENOMEM - No availble memory 5929 * EIO - The mailbox failed to complete successfully. 5930 **/ 5931static void 5932lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 5933{ 5934 int fcp_qidx; 5935 5936 /* Release mailbox command work queue */ 5937 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5938 phba->sli4_hba.mbx_wq = NULL; 5939 5940 /* Release ELS work queue */ 5941 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5942 phba->sli4_hba.els_wq = NULL; 5943 5944 /* Release FCP work queue */ 5945 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5946 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 5947 kfree(phba->sli4_hba.fcp_wq); 5948 phba->sli4_hba.fcp_wq = NULL; 5949 5950 /* Release unsolicited receive queue */ 5951 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5952 phba->sli4_hba.hdr_rq = NULL; 5953 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 5954 phba->sli4_hba.dat_rq = NULL; 5955 5956 /* Release ELS complete queue */ 5957 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5958 phba->sli4_hba.els_cq = NULL; 5959 5960 /* Release mailbox command complete queue */ 5961 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5962 phba->sli4_hba.mbx_cq = NULL; 5963 5964 /* Release FCP response complete queue */ 5965 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5966 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 5967 kfree(phba->sli4_hba.fcp_cq); 5968 phba->sli4_hba.fcp_cq = NULL; 5969 5970 /* Release fast-path event queue */ 5971 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5972 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 5973 kfree(phba->sli4_hba.fp_eq); 5974 phba->sli4_hba.fp_eq = NULL; 5975 5976 /* Release slow-path event queue */ 5977 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5978 phba->sli4_hba.sp_eq = NULL; 5979 5980 return; 5981} 5982 5983/** 5984 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 5985 * @phba: pointer to lpfc hba data structure. 5986 * 5987 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 5988 * operation. 5989 * 5990 * Return codes 5991 * 0 - successful 5992 * ENOMEM - No availble memory 5993 * EIO - The mailbox failed to complete successfully. 5994 **/ 5995int 5996lpfc_sli4_queue_setup(struct lpfc_hba *phba) 5997{ 5998 int rc = -ENOMEM; 5999 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6000 int fcp_cq_index = 0; 6001 6002 /* 6003 * Set up Event Queues (EQs) 6004 */ 6005 6006 /* Set up slow-path event queue */ 6007 if (!phba->sli4_hba.sp_eq) { 6008 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6009 "0520 Slow-path EQ not allocated\n"); 6010 goto out_error; 6011 } 6012 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 6013 LPFC_SP_DEF_IMAX); 6014 if (rc) { 6015 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6016 "0521 Failed setup of slow-path EQ: " 6017 "rc = 0x%x\n", rc); 6018 goto out_error; 6019 } 6020 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6021 "2583 Slow-path EQ setup: queue-id=%d\n", 6022 phba->sli4_hba.sp_eq->queue_id); 6023 6024 /* Set up fast-path event queue */ 6025 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6026 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 6027 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6028 "0522 Fast-path EQ (%d) not " 6029 "allocated\n", fcp_eqidx); 6030 goto out_destroy_fp_eq; 6031 } 6032 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 6033 phba->cfg_fcp_imax); 6034 if (rc) { 6035 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6036 "0523 Failed setup of fast-path EQ " 6037 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 6038 goto out_destroy_fp_eq; 6039 } 6040 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6041 "2584 Fast-path EQ setup: " 6042 "queue[%d]-id=%d\n", fcp_eqidx, 6043 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 6044 } 6045 6046 /* 6047 * Set up Complete Queues (CQs) 6048 */ 6049 6050 /* Set up slow-path MBOX Complete Queue as the first CQ */ 6051 if (!phba->sli4_hba.mbx_cq) { 6052 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6053 "0528 Mailbox CQ not allocated\n"); 6054 goto out_destroy_fp_eq; 6055 } 6056 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 6057 LPFC_MCQ, LPFC_MBOX); 6058 if (rc) { 6059 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6060 "0529 Failed setup of slow-path mailbox CQ: " 6061 "rc = 0x%x\n", rc); 6062 goto out_destroy_fp_eq; 6063 } 6064 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6065 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 6066 phba->sli4_hba.mbx_cq->queue_id, 6067 phba->sli4_hba.sp_eq->queue_id); 6068 6069 /* Set up slow-path ELS Complete Queue */ 6070 if (!phba->sli4_hba.els_cq) { 6071 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6072 "0530 ELS CQ not allocated\n"); 6073 goto out_destroy_mbx_cq; 6074 } 6075 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 6076 LPFC_WCQ, LPFC_ELS); 6077 if (rc) { 6078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6079 "0531 Failed setup of slow-path ELS CQ: " 6080 "rc = 0x%x\n", rc); 6081 goto out_destroy_mbx_cq; 6082 } 6083 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6084 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 6085 phba->sli4_hba.els_cq->queue_id, 6086 phba->sli4_hba.sp_eq->queue_id); 6087 6088 /* Set up fast-path FCP Response Complete Queue */ 6089 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 6090 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 6091 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6092 "0526 Fast-path FCP CQ (%d) not " 6093 "allocated\n", fcp_cqidx); 6094 goto out_destroy_fcp_cq; 6095 } 6096 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 6097 phba->sli4_hba.fp_eq[fcp_cqidx], 6098 LPFC_WCQ, LPFC_FCP); 6099 if (rc) { 6100 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6101 "0527 Failed setup of fast-path FCP " 6102 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 6103 goto out_destroy_fcp_cq; 6104 } 6105 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6106 "2588 FCP CQ setup: cq[%d]-id=%d, " 6107 "parent eq[%d]-id=%d\n", 6108 fcp_cqidx, 6109 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 6110 fcp_cqidx, 6111 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id); 6112 } 6113 6114 /* 6115 * Set up all the Work Queues (WQs) 6116 */ 6117 6118 /* Set up Mailbox Command Queue */ 6119 if (!phba->sli4_hba.mbx_wq) { 6120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6121 "0538 Slow-path MQ not allocated\n"); 6122 goto out_destroy_fcp_cq; 6123 } 6124 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 6125 phba->sli4_hba.mbx_cq, LPFC_MBOX); 6126 if (rc) { 6127 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6128 "0539 Failed setup of slow-path MQ: " 6129 "rc = 0x%x\n", rc); 6130 goto out_destroy_fcp_cq; 6131 } 6132 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6133 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 6134 phba->sli4_hba.mbx_wq->queue_id, 6135 phba->sli4_hba.mbx_cq->queue_id); 6136 6137 /* Set up slow-path ELS Work Queue */ 6138 if (!phba->sli4_hba.els_wq) { 6139 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6140 "0536 Slow-path ELS WQ not allocated\n"); 6141 goto out_destroy_mbx_wq; 6142 } 6143 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 6144 phba->sli4_hba.els_cq, LPFC_ELS); 6145 if (rc) { 6146 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6147 "0537 Failed setup of slow-path ELS WQ: " 6148 "rc = 0x%x\n", rc); 6149 goto out_destroy_mbx_wq; 6150 } 6151 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6152 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 6153 phba->sli4_hba.els_wq->queue_id, 6154 phba->sli4_hba.els_cq->queue_id); 6155 6156 /* Set up fast-path FCP Work Queue */ 6157 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6158 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 6159 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6160 "0534 Fast-path FCP WQ (%d) not " 6161 "allocated\n", fcp_wqidx); 6162 goto out_destroy_fcp_wq; 6163 } 6164 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 6165 phba->sli4_hba.fcp_cq[fcp_cq_index], 6166 LPFC_FCP); 6167 if (rc) { 6168 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6169 "0535 Failed setup of fast-path FCP " 6170 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 6171 goto out_destroy_fcp_wq; 6172 } 6173 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6174 "2591 FCP WQ setup: wq[%d]-id=%d, " 6175 "parent cq[%d]-id=%d\n", 6176 fcp_wqidx, 6177 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 6178 fcp_cq_index, 6179 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 6180 /* Round robin FCP Work Queue's Completion Queue assignment */ 6181 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count); 6182 } 6183 6184 /* 6185 * Create Receive Queue (RQ) 6186 */ 6187 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 6188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6189 "0540 Receive Queue not allocated\n"); 6190 goto out_destroy_fcp_wq; 6191 } 6192 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 6193 phba->sli4_hba.els_cq, LPFC_USOL); 6194 if (rc) { 6195 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6196 "0541 Failed setup of Receive Queue: " 6197 "rc = 0x%x\n", rc); 6198 goto out_destroy_fcp_wq; 6199 } 6200 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6201 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 6202 "parent cq-id=%d\n", 6203 phba->sli4_hba.hdr_rq->queue_id, 6204 phba->sli4_hba.dat_rq->queue_id, 6205 phba->sli4_hba.els_cq->queue_id); 6206 return 0; 6207 6208out_destroy_fcp_wq: 6209 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 6210 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 6211 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6212out_destroy_mbx_wq: 6213 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6214out_destroy_fcp_cq: 6215 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 6216 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 6217 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6218out_destroy_mbx_cq: 6219 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6220out_destroy_fp_eq: 6221 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 6222 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 6223 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6224out_error: 6225 return rc; 6226} 6227 6228/** 6229 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 6230 * @phba: pointer to lpfc hba data structure. 6231 * 6232 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 6233 * operation. 6234 * 6235 * Return codes 6236 * 0 - successful 6237 * ENOMEM - No availble memory 6238 * EIO - The mailbox failed to complete successfully. 6239 **/ 6240void 6241lpfc_sli4_queue_unset(struct lpfc_hba *phba) 6242{ 6243 int fcp_qidx; 6244 6245 /* Unset mailbox command work queue */ 6246 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6247 /* Unset ELS work queue */ 6248 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6249 /* Unset unsolicited receive queue */ 6250 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 6251 /* Unset FCP work queue */ 6252 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6253 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 6254 /* Unset mailbox command complete queue */ 6255 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6256 /* Unset ELS complete queue */ 6257 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6258 /* Unset FCP response complete queue */ 6259 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6260 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 6261 /* Unset fast-path event queue */ 6262 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6263 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 6264 /* Unset slow-path event queue */ 6265 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6266} 6267 6268/** 6269 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 6270 * @phba: pointer to lpfc hba data structure. 6271 * 6272 * This routine is invoked to allocate and set up a pool of completion queue 6273 * events. The body of the completion queue event is a completion queue entry 6274 * CQE. For now, this pool is used for the interrupt service routine to queue 6275 * the following HBA completion queue events for the worker thread to process: 6276 * - Mailbox asynchronous events 6277 * - Receive queue completion unsolicited events 6278 * Later, this can be used for all the slow-path events. 6279 * 6280 * Return codes 6281 * 0 - successful 6282 * -ENOMEM - No availble memory 6283 **/ 6284static int 6285lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 6286{ 6287 struct lpfc_cq_event *cq_event; 6288 int i; 6289 6290 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 6291 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 6292 if (!cq_event) 6293 goto out_pool_create_fail; 6294 list_add_tail(&cq_event->list, 6295 &phba->sli4_hba.sp_cqe_event_pool); 6296 } 6297 return 0; 6298 6299out_pool_create_fail: 6300 lpfc_sli4_cq_event_pool_destroy(phba); 6301 return -ENOMEM; 6302} 6303 6304/** 6305 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 6306 * @phba: pointer to lpfc hba data structure. 6307 * 6308 * This routine is invoked to free the pool of completion queue events at 6309 * driver unload time. Note that, it is the responsibility of the driver 6310 * cleanup routine to free all the outstanding completion-queue events 6311 * allocated from this pool back into the pool before invoking this routine 6312 * to destroy the pool. 6313 **/ 6314static void 6315lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 6316{ 6317 struct lpfc_cq_event *cq_event, *next_cq_event; 6318 6319 list_for_each_entry_safe(cq_event, next_cq_event, 6320 &phba->sli4_hba.sp_cqe_event_pool, list) { 6321 list_del(&cq_event->list); 6322 kfree(cq_event); 6323 } 6324} 6325 6326/** 6327 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6328 * @phba: pointer to lpfc hba data structure. 6329 * 6330 * This routine is the lock free version of the API invoked to allocate a 6331 * completion-queue event from the free pool. 6332 * 6333 * Return: Pointer to the newly allocated completion-queue event if successful 6334 * NULL otherwise. 6335 **/ 6336struct lpfc_cq_event * 6337__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6338{ 6339 struct lpfc_cq_event *cq_event = NULL; 6340 6341 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 6342 struct lpfc_cq_event, list); 6343 return cq_event; 6344} 6345 6346/** 6347 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6348 * @phba: pointer to lpfc hba data structure. 6349 * 6350 * This routine is the lock version of the API invoked to allocate a 6351 * completion-queue event from the free pool. 6352 * 6353 * Return: Pointer to the newly allocated completion-queue event if successful 6354 * NULL otherwise. 6355 **/ 6356struct lpfc_cq_event * 6357lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6358{ 6359 struct lpfc_cq_event *cq_event; 6360 unsigned long iflags; 6361 6362 spin_lock_irqsave(&phba->hbalock, iflags); 6363 cq_event = __lpfc_sli4_cq_event_alloc(phba); 6364 spin_unlock_irqrestore(&phba->hbalock, iflags); 6365 return cq_event; 6366} 6367 6368/** 6369 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6370 * @phba: pointer to lpfc hba data structure. 6371 * @cq_event: pointer to the completion queue event to be freed. 6372 * 6373 * This routine is the lock free version of the API invoked to release a 6374 * completion-queue event back into the free pool. 6375 **/ 6376void 6377__lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6378 struct lpfc_cq_event *cq_event) 6379{ 6380 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 6381} 6382 6383/** 6384 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6385 * @phba: pointer to lpfc hba data structure. 6386 * @cq_event: pointer to the completion queue event to be freed. 6387 * 6388 * This routine is the lock version of the API invoked to release a 6389 * completion-queue event back into the free pool. 6390 **/ 6391void 6392lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6393 struct lpfc_cq_event *cq_event) 6394{ 6395 unsigned long iflags; 6396 spin_lock_irqsave(&phba->hbalock, iflags); 6397 __lpfc_sli4_cq_event_release(phba, cq_event); 6398 spin_unlock_irqrestore(&phba->hbalock, iflags); 6399} 6400 6401/** 6402 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 6403 * @phba: pointer to lpfc hba data structure. 6404 * 6405 * This routine is to free all the pending completion-queue events to the 6406 * back into the free pool for device reset. 6407 **/ 6408static void 6409lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 6410{ 6411 LIST_HEAD(cqelist); 6412 struct lpfc_cq_event *cqe; 6413 unsigned long iflags; 6414 6415 /* Retrieve all the pending WCQEs from pending WCQE lists */ 6416 spin_lock_irqsave(&phba->hbalock, iflags); 6417 /* Pending FCP XRI abort events */ 6418 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 6419 &cqelist); 6420 /* Pending ELS XRI abort events */ 6421 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 6422 &cqelist); 6423 /* Pending asynnc events */ 6424 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 6425 &cqelist); 6426 spin_unlock_irqrestore(&phba->hbalock, iflags); 6427 6428 while (!list_empty(&cqelist)) { 6429 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 6430 lpfc_sli4_cq_event_release(phba, cqe); 6431 } 6432} 6433 6434/** 6435 * lpfc_pci_function_reset - Reset pci function. 6436 * @phba: pointer to lpfc hba data structure. 6437 * 6438 * This routine is invoked to request a PCI function reset. It will destroys 6439 * all resources assigned to the PCI function which originates this request. 6440 * 6441 * Return codes 6442 * 0 - successful 6443 * ENOMEM - No availble memory 6444 * EIO - The mailbox failed to complete successfully. 6445 **/ 6446int 6447lpfc_pci_function_reset(struct lpfc_hba *phba) 6448{ 6449 LPFC_MBOXQ_t *mboxq; 6450 uint32_t rc = 0; 6451 uint32_t shdr_status, shdr_add_status; 6452 union lpfc_sli4_cfg_shdr *shdr; 6453 6454 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6455 if (!mboxq) { 6456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6457 "0494 Unable to allocate memory for issuing " 6458 "SLI_FUNCTION_RESET mailbox command\n"); 6459 return -ENOMEM; 6460 } 6461 6462 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */ 6463 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6464 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 6465 LPFC_SLI4_MBX_EMBED); 6466 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6467 shdr = (union lpfc_sli4_cfg_shdr *) 6468 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6469 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6470 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6471 if (rc != MBX_TIMEOUT) 6472 mempool_free(mboxq, phba->mbox_mem_pool); 6473 if (shdr_status || shdr_add_status || rc) { 6474 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6475 "0495 SLI_FUNCTION_RESET mailbox failed with " 6476 "status x%x add_status x%x, mbx status x%x\n", 6477 shdr_status, shdr_add_status, rc); 6478 rc = -ENXIO; 6479 } 6480 return rc; 6481} 6482 6483/** 6484 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 6485 * @phba: pointer to lpfc hba data structure. 6486 * @cnt: number of nop mailbox commands to send. 6487 * 6488 * This routine is invoked to send a number @cnt of NOP mailbox command and 6489 * wait for each command to complete. 6490 * 6491 * Return: the number of NOP mailbox command completed. 6492 **/ 6493static int 6494lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 6495{ 6496 LPFC_MBOXQ_t *mboxq; 6497 int length, cmdsent; 6498 uint32_t mbox_tmo; 6499 uint32_t rc = 0; 6500 uint32_t shdr_status, shdr_add_status; 6501 union lpfc_sli4_cfg_shdr *shdr; 6502 6503 if (cnt == 0) { 6504 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6505 "2518 Requested to send 0 NOP mailbox cmd\n"); 6506 return cnt; 6507 } 6508 6509 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6510 if (!mboxq) { 6511 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6512 "2519 Unable to allocate memory for issuing " 6513 "NOP mailbox command\n"); 6514 return 0; 6515 } 6516 6517 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 6518 length = (sizeof(struct lpfc_mbx_nop) - 6519 sizeof(struct lpfc_sli4_cfg_mhdr)); 6520 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6521 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 6522 6523 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 6524 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 6525 if (!phba->sli4_hba.intr_enable) 6526 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6527 else 6528 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 6529 if (rc == MBX_TIMEOUT) 6530 break; 6531 /* Check return status */ 6532 shdr = (union lpfc_sli4_cfg_shdr *) 6533 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6534 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6535 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 6536 &shdr->response); 6537 if (shdr_status || shdr_add_status || rc) { 6538 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6539 "2520 NOP mailbox command failed " 6540 "status x%x add_status x%x mbx " 6541 "status x%x\n", shdr_status, 6542 shdr_add_status, rc); 6543 break; 6544 } 6545 } 6546 6547 if (rc != MBX_TIMEOUT) 6548 mempool_free(mboxq, phba->mbox_mem_pool); 6549 6550 return cmdsent; 6551} 6552 6553/** 6554 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device 6555 * @phba: pointer to lpfc hba data structure. 6556 * @fcfi: fcf index. 6557 * 6558 * This routine is invoked to unregister a FCFI from device. 6559 **/ 6560void 6561lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi) 6562{ 6563 LPFC_MBOXQ_t *mbox; 6564 uint32_t mbox_tmo; 6565 int rc; 6566 unsigned long flags; 6567 6568 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6569 6570 if (!mbox) 6571 return; 6572 6573 lpfc_unreg_fcfi(mbox, fcfi); 6574 6575 if (!phba->sli4_hba.intr_enable) 6576 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 6577 else { 6578 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 6579 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); 6580 } 6581 if (rc != MBX_TIMEOUT) 6582 mempool_free(mbox, phba->mbox_mem_pool); 6583 if (rc != MBX_SUCCESS) 6584 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6585 "2517 Unregister FCFI command failed " 6586 "status %d, mbxStatus x%x\n", rc, 6587 bf_get(lpfc_mqe_status, &mbox->u.mqe)); 6588 else { 6589 spin_lock_irqsave(&phba->hbalock, flags); 6590 /* Mark the FCFI is no longer registered */ 6591 phba->fcf.fcf_flag &= 6592 ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_SCAN_DONE); 6593 spin_unlock_irqrestore(&phba->hbalock, flags); 6594 } 6595} 6596 6597/** 6598 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 6599 * @phba: pointer to lpfc hba data structure. 6600 * 6601 * This routine is invoked to set up the PCI device memory space for device 6602 * with SLI-4 interface spec. 6603 * 6604 * Return codes 6605 * 0 - successful 6606 * other values - error 6607 **/ 6608static int 6609lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 6610{ 6611 struct pci_dev *pdev; 6612 unsigned long bar0map_len, bar1map_len, bar2map_len; 6613 int error = -ENODEV; 6614 6615 /* Obtain PCI device reference */ 6616 if (!phba->pcidev) 6617 return error; 6618 else 6619 pdev = phba->pcidev; 6620 6621 /* Set the device DMA mask size */ 6622 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6623 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6624 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6625 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6626 return error; 6627 } 6628 } 6629 6630 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the 6631 * number of bytes required by each mapping. They are actually 6632 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device. 6633 */ 6634 if (pci_resource_start(pdev, 0)) { 6635 phba->pci_bar0_map = pci_resource_start(pdev, 0); 6636 bar0map_len = pci_resource_len(pdev, 0); 6637 } else { 6638 phba->pci_bar0_map = pci_resource_start(pdev, 1); 6639 bar0map_len = pci_resource_len(pdev, 1); 6640 } 6641 phba->pci_bar1_map = pci_resource_start(pdev, 2); 6642 bar1map_len = pci_resource_len(pdev, 2); 6643 6644 phba->pci_bar2_map = pci_resource_start(pdev, 4); 6645 bar2map_len = pci_resource_len(pdev, 4); 6646 6647 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */ 6648 phba->sli4_hba.conf_regs_memmap_p = 6649 ioremap(phba->pci_bar0_map, bar0map_len); 6650 if (!phba->sli4_hba.conf_regs_memmap_p) { 6651 dev_printk(KERN_ERR, &pdev->dev, 6652 "ioremap failed for SLI4 PCI config registers.\n"); 6653 goto out; 6654 } 6655 6656 /* Map SLI4 HBA Control Register base to a kernel virtual address. */ 6657 phba->sli4_hba.ctrl_regs_memmap_p = 6658 ioremap(phba->pci_bar1_map, bar1map_len); 6659 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 6660 dev_printk(KERN_ERR, &pdev->dev, 6661 "ioremap failed for SLI4 HBA control registers.\n"); 6662 goto out_iounmap_conf; 6663 } 6664 6665 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */ 6666 phba->sli4_hba.drbl_regs_memmap_p = 6667 ioremap(phba->pci_bar2_map, bar2map_len); 6668 if (!phba->sli4_hba.drbl_regs_memmap_p) { 6669 dev_printk(KERN_ERR, &pdev->dev, 6670 "ioremap failed for SLI4 HBA doorbell registers.\n"); 6671 goto out_iounmap_ctrl; 6672 } 6673 6674 /* Set up BAR0 PCI config space register memory map */ 6675 lpfc_sli4_bar0_register_memmap(phba); 6676 6677 /* Set up BAR1 register memory map */ 6678 lpfc_sli4_bar1_register_memmap(phba); 6679 6680 /* Set up BAR2 register memory map */ 6681 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 6682 if (error) 6683 goto out_iounmap_all; 6684 6685 return 0; 6686 6687out_iounmap_all: 6688 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6689out_iounmap_ctrl: 6690 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6691out_iounmap_conf: 6692 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6693out: 6694 return error; 6695} 6696 6697/** 6698 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 6699 * @phba: pointer to lpfc hba data structure. 6700 * 6701 * This routine is invoked to unset the PCI device memory space for device 6702 * with SLI-4 interface spec. 6703 **/ 6704static void 6705lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 6706{ 6707 struct pci_dev *pdev; 6708 6709 /* Obtain PCI device reference */ 6710 if (!phba->pcidev) 6711 return; 6712 else 6713 pdev = phba->pcidev; 6714 6715 /* Free coherent DMA memory allocated */ 6716 6717 /* Unmap I/O memory space */ 6718 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6719 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6720 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6721 6722 return; 6723} 6724 6725/** 6726 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 6727 * @phba: pointer to lpfc hba data structure. 6728 * 6729 * This routine is invoked to enable the MSI-X interrupt vectors to device 6730 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 6731 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 6732 * invoked, enables either all or nothing, depending on the current 6733 * availability of PCI vector resources. The device driver is responsible 6734 * for calling the individual request_irq() to register each MSI-X vector 6735 * with a interrupt handler, which is done in this function. Note that 6736 * later when device is unloading, the driver should always call free_irq() 6737 * on all MSI-X vectors it has done request_irq() on before calling 6738 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 6739 * will be left with MSI-X enabled and leaks its vectors. 6740 * 6741 * Return codes 6742 * 0 - successful 6743 * other values - error 6744 **/ 6745static int 6746lpfc_sli_enable_msix(struct lpfc_hba *phba) 6747{ 6748 int rc, i; 6749 LPFC_MBOXQ_t *pmb; 6750 6751 /* Set up MSI-X multi-message vectors */ 6752 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6753 phba->msix_entries[i].entry = i; 6754 6755 /* Configure MSI-X capability structure */ 6756 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 6757 ARRAY_SIZE(phba->msix_entries)); 6758 if (rc) { 6759 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6760 "0420 PCI enable MSI-X failed (%d)\n", rc); 6761 goto msi_fail_out; 6762 } 6763 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6764 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6765 "0477 MSI-X entry[%d]: vector=x%x " 6766 "message=%d\n", i, 6767 phba->msix_entries[i].vector, 6768 phba->msix_entries[i].entry); 6769 /* 6770 * Assign MSI-X vectors to interrupt handlers 6771 */ 6772 6773 /* vector-0 is associated to slow-path handler */ 6774 rc = request_irq(phba->msix_entries[0].vector, 6775 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 6776 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6777 if (rc) { 6778 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6779 "0421 MSI-X slow-path request_irq failed " 6780 "(%d)\n", rc); 6781 goto msi_fail_out; 6782 } 6783 6784 /* vector-1 is associated to fast-path handler */ 6785 rc = request_irq(phba->msix_entries[1].vector, 6786 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 6787 LPFC_FP_DRIVER_HANDLER_NAME, phba); 6788 6789 if (rc) { 6790 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6791 "0429 MSI-X fast-path request_irq failed " 6792 "(%d)\n", rc); 6793 goto irq_fail_out; 6794 } 6795 6796 /* 6797 * Configure HBA MSI-X attention conditions to messages 6798 */ 6799 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6800 6801 if (!pmb) { 6802 rc = -ENOMEM; 6803 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6804 "0474 Unable to allocate memory for issuing " 6805 "MBOX_CONFIG_MSI command\n"); 6806 goto mem_fail_out; 6807 } 6808 rc = lpfc_config_msi(phba, pmb); 6809 if (rc) 6810 goto mbx_fail_out; 6811 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6812 if (rc != MBX_SUCCESS) { 6813 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 6814 "0351 Config MSI mailbox command failed, " 6815 "mbxCmd x%x, mbxStatus x%x\n", 6816 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 6817 goto mbx_fail_out; 6818 } 6819 6820 /* Free memory allocated for mailbox command */ 6821 mempool_free(pmb, phba->mbox_mem_pool); 6822 return rc; 6823 6824mbx_fail_out: 6825 /* Free memory allocated for mailbox command */ 6826 mempool_free(pmb, phba->mbox_mem_pool); 6827 6828mem_fail_out: 6829 /* free the irq already requested */ 6830 free_irq(phba->msix_entries[1].vector, phba); 6831 6832irq_fail_out: 6833 /* free the irq already requested */ 6834 free_irq(phba->msix_entries[0].vector, phba); 6835 6836msi_fail_out: 6837 /* Unconfigure MSI-X capability structure */ 6838 pci_disable_msix(phba->pcidev); 6839 return rc; 6840} 6841 6842/** 6843 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 6844 * @phba: pointer to lpfc hba data structure. 6845 * 6846 * This routine is invoked to release the MSI-X vectors and then disable the 6847 * MSI-X interrupt mode to device with SLI-3 interface spec. 6848 **/ 6849static void 6850lpfc_sli_disable_msix(struct lpfc_hba *phba) 6851{ 6852 int i; 6853 6854 /* Free up MSI-X multi-message vectors */ 6855 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6856 free_irq(phba->msix_entries[i].vector, phba); 6857 /* Disable MSI-X */ 6858 pci_disable_msix(phba->pcidev); 6859 6860 return; 6861} 6862 6863/** 6864 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 6865 * @phba: pointer to lpfc hba data structure. 6866 * 6867 * This routine is invoked to enable the MSI interrupt mode to device with 6868 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 6869 * enable the MSI vector. The device driver is responsible for calling the 6870 * request_irq() to register MSI vector with a interrupt the handler, which 6871 * is done in this function. 6872 * 6873 * Return codes 6874 * 0 - successful 6875 * other values - error 6876 */ 6877static int 6878lpfc_sli_enable_msi(struct lpfc_hba *phba) 6879{ 6880 int rc; 6881 6882 rc = pci_enable_msi(phba->pcidev); 6883 if (!rc) 6884 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6885 "0462 PCI enable MSI mode success.\n"); 6886 else { 6887 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6888 "0471 PCI enable MSI mode failed (%d)\n", rc); 6889 return rc; 6890 } 6891 6892 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6893 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6894 if (rc) { 6895 pci_disable_msi(phba->pcidev); 6896 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6897 "0478 MSI request_irq failed (%d)\n", rc); 6898 } 6899 return rc; 6900} 6901 6902/** 6903 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 6904 * @phba: pointer to lpfc hba data structure. 6905 * 6906 * This routine is invoked to disable the MSI interrupt mode to device with 6907 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 6908 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6909 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6910 * its vector. 6911 */ 6912static void 6913lpfc_sli_disable_msi(struct lpfc_hba *phba) 6914{ 6915 free_irq(phba->pcidev->irq, phba); 6916 pci_disable_msi(phba->pcidev); 6917 return; 6918} 6919 6920/** 6921 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 6922 * @phba: pointer to lpfc hba data structure. 6923 * 6924 * This routine is invoked to enable device interrupt and associate driver's 6925 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 6926 * spec. Depends on the interrupt mode configured to the driver, the driver 6927 * will try to fallback from the configured interrupt mode to an interrupt 6928 * mode which is supported by the platform, kernel, and device in the order 6929 * of: 6930 * MSI-X -> MSI -> IRQ. 6931 * 6932 * Return codes 6933 * 0 - successful 6934 * other values - error 6935 **/ 6936static uint32_t 6937lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6938{ 6939 uint32_t intr_mode = LPFC_INTR_ERROR; 6940 int retval; 6941 6942 if (cfg_mode == 2) { 6943 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 6944 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 6945 if (!retval) { 6946 /* Now, try to enable MSI-X interrupt mode */ 6947 retval = lpfc_sli_enable_msix(phba); 6948 if (!retval) { 6949 /* Indicate initialization to MSI-X mode */ 6950 phba->intr_type = MSIX; 6951 intr_mode = 2; 6952 } 6953 } 6954 } 6955 6956 /* Fallback to MSI if MSI-X initialization failed */ 6957 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6958 retval = lpfc_sli_enable_msi(phba); 6959 if (!retval) { 6960 /* Indicate initialization to MSI mode */ 6961 phba->intr_type = MSI; 6962 intr_mode = 1; 6963 } 6964 } 6965 6966 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6967 if (phba->intr_type == NONE) { 6968 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6969 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6970 if (!retval) { 6971 /* Indicate initialization to INTx mode */ 6972 phba->intr_type = INTx; 6973 intr_mode = 0; 6974 } 6975 } 6976 return intr_mode; 6977} 6978 6979/** 6980 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 6981 * @phba: pointer to lpfc hba data structure. 6982 * 6983 * This routine is invoked to disable device interrupt and disassociate the 6984 * driver's interrupt handler(s) from interrupt vector(s) to device with 6985 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 6986 * release the interrupt vector(s) for the message signaled interrupt. 6987 **/ 6988static void 6989lpfc_sli_disable_intr(struct lpfc_hba *phba) 6990{ 6991 /* Disable the currently initialized interrupt mode */ 6992 if (phba->intr_type == MSIX) 6993 lpfc_sli_disable_msix(phba); 6994 else if (phba->intr_type == MSI) 6995 lpfc_sli_disable_msi(phba); 6996 else if (phba->intr_type == INTx) 6997 free_irq(phba->pcidev->irq, phba); 6998 6999 /* Reset interrupt management states */ 7000 phba->intr_type = NONE; 7001 phba->sli.slistat.sli_intr = 0; 7002 7003 return; 7004} 7005 7006/** 7007 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 7008 * @phba: pointer to lpfc hba data structure. 7009 * 7010 * This routine is invoked to enable the MSI-X interrupt vectors to device 7011 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 7012 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 7013 * enables either all or nothing, depending on the current availability of 7014 * PCI vector resources. The device driver is responsible for calling the 7015 * individual request_irq() to register each MSI-X vector with a interrupt 7016 * handler, which is done in this function. Note that later when device is 7017 * unloading, the driver should always call free_irq() on all MSI-X vectors 7018 * it has done request_irq() on before calling pci_disable_msix(). Failure 7019 * to do so results in a BUG_ON() and a device will be left with MSI-X 7020 * enabled and leaks its vectors. 7021 * 7022 * Return codes 7023 * 0 - successful 7024 * other values - error 7025 **/ 7026static int 7027lpfc_sli4_enable_msix(struct lpfc_hba *phba) 7028{ 7029 int rc, index; 7030 7031 /* Set up MSI-X multi-message vectors */ 7032 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 7033 phba->sli4_hba.msix_entries[index].entry = index; 7034 7035 /* Configure MSI-X capability structure */ 7036 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 7037 phba->sli4_hba.cfg_eqn); 7038 if (rc) { 7039 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7040 "0484 PCI enable MSI-X failed (%d)\n", rc); 7041 goto msi_fail_out; 7042 } 7043 /* Log MSI-X vector assignment */ 7044 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 7045 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7046 "0489 MSI-X entry[%d]: vector=x%x " 7047 "message=%d\n", index, 7048 phba->sli4_hba.msix_entries[index].vector, 7049 phba->sli4_hba.msix_entries[index].entry); 7050 /* 7051 * Assign MSI-X vectors to interrupt handlers 7052 */ 7053 7054 /* The first vector must associated to slow-path handler for MQ */ 7055 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7056 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 7057 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7058 if (rc) { 7059 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7060 "0485 MSI-X slow-path request_irq failed " 7061 "(%d)\n", rc); 7062 goto msi_fail_out; 7063 } 7064 7065 /* The rest of the vector(s) are associated to fast-path handler(s) */ 7066 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) { 7067 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 7068 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 7069 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 7070 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 7071 LPFC_FP_DRIVER_HANDLER_NAME, 7072 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7073 if (rc) { 7074 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7075 "0486 MSI-X fast-path (%d) " 7076 "request_irq failed (%d)\n", index, rc); 7077 goto cfg_fail_out; 7078 } 7079 } 7080 7081 return rc; 7082 7083cfg_fail_out: 7084 /* free the irq already requested */ 7085 for (--index; index >= 1; index--) 7086 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 7087 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7088 7089 /* free the irq already requested */ 7090 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7091 7092msi_fail_out: 7093 /* Unconfigure MSI-X capability structure */ 7094 pci_disable_msix(phba->pcidev); 7095 return rc; 7096} 7097 7098/** 7099 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 7100 * @phba: pointer to lpfc hba data structure. 7101 * 7102 * This routine is invoked to release the MSI-X vectors and then disable the 7103 * MSI-X interrupt mode to device with SLI-4 interface spec. 7104 **/ 7105static void 7106lpfc_sli4_disable_msix(struct lpfc_hba *phba) 7107{ 7108 int index; 7109 7110 /* Free up MSI-X multi-message vectors */ 7111 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7112 7113 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) 7114 free_irq(phba->sli4_hba.msix_entries[index].vector, 7115 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7116 /* Disable MSI-X */ 7117 pci_disable_msix(phba->pcidev); 7118 7119 return; 7120} 7121 7122/** 7123 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 7124 * @phba: pointer to lpfc hba data structure. 7125 * 7126 * This routine is invoked to enable the MSI interrupt mode to device with 7127 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 7128 * to enable the MSI vector. The device driver is responsible for calling 7129 * the request_irq() to register MSI vector with a interrupt the handler, 7130 * which is done in this function. 7131 * 7132 * Return codes 7133 * 0 - successful 7134 * other values - error 7135 **/ 7136static int 7137lpfc_sli4_enable_msi(struct lpfc_hba *phba) 7138{ 7139 int rc, index; 7140 7141 rc = pci_enable_msi(phba->pcidev); 7142 if (!rc) 7143 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7144 "0487 PCI enable MSI mode success.\n"); 7145 else { 7146 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7147 "0488 PCI enable MSI mode failed (%d)\n", rc); 7148 return rc; 7149 } 7150 7151 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7152 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7153 if (rc) { 7154 pci_disable_msi(phba->pcidev); 7155 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7156 "0490 MSI request_irq failed (%d)\n", rc); 7157 } 7158 7159 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 7160 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7161 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7162 } 7163 7164 return rc; 7165} 7166 7167/** 7168 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 7169 * @phba: pointer to lpfc hba data structure. 7170 * 7171 * This routine is invoked to disable the MSI interrupt mode to device with 7172 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 7173 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7174 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7175 * its vector. 7176 **/ 7177static void 7178lpfc_sli4_disable_msi(struct lpfc_hba *phba) 7179{ 7180 free_irq(phba->pcidev->irq, phba); 7181 pci_disable_msi(phba->pcidev); 7182 return; 7183} 7184 7185/** 7186 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 7187 * @phba: pointer to lpfc hba data structure. 7188 * 7189 * This routine is invoked to enable device interrupt and associate driver's 7190 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 7191 * interface spec. Depends on the interrupt mode configured to the driver, 7192 * the driver will try to fallback from the configured interrupt mode to an 7193 * interrupt mode which is supported by the platform, kernel, and device in 7194 * the order of: 7195 * MSI-X -> MSI -> IRQ. 7196 * 7197 * Return codes 7198 * 0 - successful 7199 * other values - error 7200 **/ 7201static uint32_t 7202lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7203{ 7204 uint32_t intr_mode = LPFC_INTR_ERROR; 7205 int retval, index; 7206 7207 if (cfg_mode == 2) { 7208 /* Preparation before conf_msi mbox cmd */ 7209 retval = 0; 7210 if (!retval) { 7211 /* Now, try to enable MSI-X interrupt mode */ 7212 retval = lpfc_sli4_enable_msix(phba); 7213 if (!retval) { 7214 /* Indicate initialization to MSI-X mode */ 7215 phba->intr_type = MSIX; 7216 intr_mode = 2; 7217 } 7218 } 7219 } 7220 7221 /* Fallback to MSI if MSI-X initialization failed */ 7222 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7223 retval = lpfc_sli4_enable_msi(phba); 7224 if (!retval) { 7225 /* Indicate initialization to MSI mode */ 7226 phba->intr_type = MSI; 7227 intr_mode = 1; 7228 } 7229 } 7230 7231 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7232 if (phba->intr_type == NONE) { 7233 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7234 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7235 if (!retval) { 7236 /* Indicate initialization to INTx mode */ 7237 phba->intr_type = INTx; 7238 intr_mode = 0; 7239 for (index = 0; index < phba->cfg_fcp_eq_count; 7240 index++) { 7241 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7242 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7243 } 7244 } 7245 } 7246 return intr_mode; 7247} 7248 7249/** 7250 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 7251 * @phba: pointer to lpfc hba data structure. 7252 * 7253 * This routine is invoked to disable device interrupt and disassociate 7254 * the driver's interrupt handler(s) from interrupt vector(s) to device 7255 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 7256 * will release the interrupt vector(s) for the message signaled interrupt. 7257 **/ 7258static void 7259lpfc_sli4_disable_intr(struct lpfc_hba *phba) 7260{ 7261 /* Disable the currently initialized interrupt mode */ 7262 if (phba->intr_type == MSIX) 7263 lpfc_sli4_disable_msix(phba); 7264 else if (phba->intr_type == MSI) 7265 lpfc_sli4_disable_msi(phba); 7266 else if (phba->intr_type == INTx) 7267 free_irq(phba->pcidev->irq, phba); 7268 7269 /* Reset interrupt management states */ 7270 phba->intr_type = NONE; 7271 phba->sli.slistat.sli_intr = 0; 7272 7273 return; 7274} 7275 7276/** 7277 * lpfc_unset_hba - Unset SLI3 hba device initialization 7278 * @phba: pointer to lpfc hba data structure. 7279 * 7280 * This routine is invoked to unset the HBA device initialization steps to 7281 * a device with SLI-3 interface spec. 7282 **/ 7283static void 7284lpfc_unset_hba(struct lpfc_hba *phba) 7285{ 7286 struct lpfc_vport *vport = phba->pport; 7287 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7288 7289 spin_lock_irq(shost->host_lock); 7290 vport->load_flag |= FC_UNLOADING; 7291 spin_unlock_irq(shost->host_lock); 7292 7293 lpfc_stop_hba_timers(phba); 7294 7295 phba->pport->work_port_events = 0; 7296 7297 lpfc_sli_hba_down(phba); 7298 7299 lpfc_sli_brdrestart(phba); 7300 7301 lpfc_sli_disable_intr(phba); 7302 7303 return; 7304} 7305 7306/** 7307 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 7308 * @phba: pointer to lpfc hba data structure. 7309 * 7310 * This routine is invoked to unset the HBA device initialization steps to 7311 * a device with SLI-4 interface spec. 7312 **/ 7313static void 7314lpfc_sli4_unset_hba(struct lpfc_hba *phba) 7315{ 7316 struct lpfc_vport *vport = phba->pport; 7317 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7318 7319 spin_lock_irq(shost->host_lock); 7320 vport->load_flag |= FC_UNLOADING; 7321 spin_unlock_irq(shost->host_lock); 7322 7323 phba->pport->work_port_events = 0; 7324 7325 lpfc_sli4_hba_down(phba); 7326 7327 lpfc_sli4_disable_intr(phba); 7328 7329 return; 7330} 7331 7332/** 7333 * lpfc_sli4_hba_unset - Unset the fcoe hba 7334 * @phba: Pointer to HBA context object. 7335 * 7336 * This function is called in the SLI4 code path to reset the HBA's FCoE 7337 * function. The caller is not required to hold any lock. This routine 7338 * issues PCI function reset mailbox command to reset the FCoE function. 7339 * At the end of the function, it calls lpfc_hba_down_post function to 7340 * free any pending commands. 7341 **/ 7342static void 7343lpfc_sli4_hba_unset(struct lpfc_hba *phba) 7344{ 7345 int wait_cnt = 0; 7346 LPFC_MBOXQ_t *mboxq; 7347 7348 lpfc_stop_hba_timers(phba); 7349 phba->sli4_hba.intr_enable = 0; 7350 7351 /* 7352 * Gracefully wait out the potential current outstanding asynchronous 7353 * mailbox command. 7354 */ 7355 7356 /* First, block any pending async mailbox command from posted */ 7357 spin_lock_irq(&phba->hbalock); 7358 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 7359 spin_unlock_irq(&phba->hbalock); 7360 /* Now, trying to wait it out if we can */ 7361 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7362 msleep(10); 7363 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 7364 break; 7365 } 7366 /* Forcefully release the outstanding mailbox command if timed out */ 7367 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7368 spin_lock_irq(&phba->hbalock); 7369 mboxq = phba->sli.mbox_active; 7370 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 7371 __lpfc_mbox_cmpl_put(phba, mboxq); 7372 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 7373 phba->sli.mbox_active = NULL; 7374 spin_unlock_irq(&phba->hbalock); 7375 } 7376 7377 /* Tear down the queues in the HBA */ 7378 lpfc_sli4_queue_unset(phba); 7379 7380 /* Disable PCI subsystem interrupt */ 7381 lpfc_sli4_disable_intr(phba); 7382 7383 /* Stop kthread signal shall trigger work_done one more time */ 7384 kthread_stop(phba->worker_thread); 7385 7386 /* Stop the SLI4 device port */ 7387 phba->pport->work_port_events = 0; 7388} 7389 7390 /** 7391 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 7392 * @phba: Pointer to HBA context object. 7393 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 7394 * 7395 * This function is called in the SLI4 code path to read the port's 7396 * sli4 capabilities. 7397 * 7398 * This function may be be called from any context that can block-wait 7399 * for the completion. The expectation is that this routine is called 7400 * typically from probe_one or from the online routine. 7401 **/ 7402int 7403lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 7404{ 7405 int rc; 7406 struct lpfc_mqe *mqe; 7407 struct lpfc_pc_sli4_params *sli4_params; 7408 uint32_t mbox_tmo; 7409 7410 rc = 0; 7411 mqe = &mboxq->u.mqe; 7412 7413 /* Read the port's SLI4 Parameters port capabilities */ 7414 lpfc_sli4_params(mboxq); 7415 if (!phba->sli4_hba.intr_enable) 7416 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7417 else { 7418 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES); 7419 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7420 } 7421 7422 if (unlikely(rc)) 7423 return 1; 7424 7425 sli4_params = &phba->sli4_hba.pc_sli4_params; 7426 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 7427 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 7428 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 7429 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 7430 &mqe->un.sli4_params); 7431 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 7432 &mqe->un.sli4_params); 7433 sli4_params->proto_types = mqe->un.sli4_params.word3; 7434 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 7435 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 7436 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 7437 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 7438 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 7439 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 7440 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 7441 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 7442 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 7443 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 7444 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 7445 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 7446 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 7447 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 7448 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 7449 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 7450 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 7451 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 7452 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 7453 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 7454 return rc; 7455} 7456 7457/** 7458 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 7459 * @pdev: pointer to PCI device 7460 * @pid: pointer to PCI device identifier 7461 * 7462 * This routine is to be called to attach a device with SLI-3 interface spec 7463 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 7464 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 7465 * information of the device and driver to see if the driver state that it can 7466 * support this kind of device. If the match is successful, the driver core 7467 * invokes this routine. If this routine determines it can claim the HBA, it 7468 * does all the initialization that it needs to do to handle the HBA properly. 7469 * 7470 * Return code 7471 * 0 - driver can claim the device 7472 * negative value - driver can not claim the device 7473 **/ 7474static int __devinit 7475lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 7476{ 7477 struct lpfc_hba *phba; 7478 struct lpfc_vport *vport = NULL; 7479 struct Scsi_Host *shost = NULL; 7480 int error; 7481 uint32_t cfg_mode, intr_mode; 7482 7483 /* Allocate memory for HBA structure */ 7484 phba = lpfc_hba_alloc(pdev); 7485 if (!phba) 7486 return -ENOMEM; 7487 7488 /* Perform generic PCI device enabling operation */ 7489 error = lpfc_enable_pci_dev(phba); 7490 if (error) { 7491 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7492 "1401 Failed to enable pci device.\n"); 7493 goto out_free_phba; 7494 } 7495 7496 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 7497 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 7498 if (error) 7499 goto out_disable_pci_dev; 7500 7501 /* Set up SLI-3 specific device PCI memory space */ 7502 error = lpfc_sli_pci_mem_setup(phba); 7503 if (error) { 7504 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7505 "1402 Failed to set up pci memory space.\n"); 7506 goto out_disable_pci_dev; 7507 } 7508 7509 /* Set up phase-1 common device driver resources */ 7510 error = lpfc_setup_driver_resource_phase1(phba); 7511 if (error) { 7512 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7513 "1403 Failed to set up driver resource.\n"); 7514 goto out_unset_pci_mem_s3; 7515 } 7516 7517 /* Set up SLI-3 specific device driver resources */ 7518 error = lpfc_sli_driver_resource_setup(phba); 7519 if (error) { 7520 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7521 "1404 Failed to set up driver resource.\n"); 7522 goto out_unset_pci_mem_s3; 7523 } 7524 7525 /* Initialize and populate the iocb list per host */ 7526 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 7527 if (error) { 7528 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7529 "1405 Failed to initialize iocb list.\n"); 7530 goto out_unset_driver_resource_s3; 7531 } 7532 7533 /* Set up common device driver resources */ 7534 error = lpfc_setup_driver_resource_phase2(phba); 7535 if (error) { 7536 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7537 "1406 Failed to set up driver resource.\n"); 7538 goto out_free_iocb_list; 7539 } 7540 7541 /* Create SCSI host to the physical port */ 7542 error = lpfc_create_shost(phba); 7543 if (error) { 7544 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7545 "1407 Failed to create scsi host.\n"); 7546 goto out_unset_driver_resource; 7547 } 7548 7549 /* Configure sysfs attributes */ 7550 vport = phba->pport; 7551 error = lpfc_alloc_sysfs_attr(vport); 7552 if (error) { 7553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7554 "1476 Failed to allocate sysfs attr\n"); 7555 goto out_destroy_shost; 7556 } 7557 7558 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 7559 /* Now, trying to enable interrupt and bring up the device */ 7560 cfg_mode = phba->cfg_use_msi; 7561 while (true) { 7562 /* Put device to a known state before enabling interrupt */ 7563 lpfc_stop_port(phba); 7564 /* Configure and enable interrupt */ 7565 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 7566 if (intr_mode == LPFC_INTR_ERROR) { 7567 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7568 "0431 Failed to enable interrupt.\n"); 7569 error = -ENODEV; 7570 goto out_free_sysfs_attr; 7571 } 7572 /* SLI-3 HBA setup */ 7573 if (lpfc_sli_hba_setup(phba)) { 7574 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7575 "1477 Failed to set up hba\n"); 7576 error = -ENODEV; 7577 goto out_remove_device; 7578 } 7579 7580 /* Wait 50ms for the interrupts of previous mailbox commands */ 7581 msleep(50); 7582 /* Check active interrupts on message signaled interrupts */ 7583 if (intr_mode == 0 || 7584 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 7585 /* Log the current active interrupt mode */ 7586 phba->intr_mode = intr_mode; 7587 lpfc_log_intr_mode(phba, intr_mode); 7588 break; 7589 } else { 7590 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7591 "0447 Configure interrupt mode (%d) " 7592 "failed active interrupt test.\n", 7593 intr_mode); 7594 /* Disable the current interrupt mode */ 7595 lpfc_sli_disable_intr(phba); 7596 /* Try next level of interrupt mode */ 7597 cfg_mode = --intr_mode; 7598 } 7599 } 7600 7601 /* Perform post initialization setup */ 7602 lpfc_post_init_setup(phba); 7603 7604 /* Check if there are static vports to be created. */ 7605 lpfc_create_static_vport(phba); 7606 7607 return 0; 7608 7609out_remove_device: 7610 lpfc_unset_hba(phba); 7611out_free_sysfs_attr: 7612 lpfc_free_sysfs_attr(vport); 7613out_destroy_shost: 7614 lpfc_destroy_shost(phba); 7615out_unset_driver_resource: 7616 lpfc_unset_driver_resource_phase2(phba); 7617out_free_iocb_list: 7618 lpfc_free_iocb_list(phba); 7619out_unset_driver_resource_s3: 7620 lpfc_sli_driver_resource_unset(phba); 7621out_unset_pci_mem_s3: 7622 lpfc_sli_pci_mem_unset(phba); 7623out_disable_pci_dev: 7624 lpfc_disable_pci_dev(phba); 7625 if (shost) 7626 scsi_host_put(shost); 7627out_free_phba: 7628 lpfc_hba_free(phba); 7629 return error; 7630} 7631 7632/** 7633 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 7634 * @pdev: pointer to PCI device 7635 * 7636 * This routine is to be called to disattach a device with SLI-3 interface 7637 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 7638 * removed from PCI bus, it performs all the necessary cleanup for the HBA 7639 * device to be removed from the PCI subsystem properly. 7640 **/ 7641static void __devexit 7642lpfc_pci_remove_one_s3(struct pci_dev *pdev) 7643{ 7644 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7645 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7646 struct lpfc_vport **vports; 7647 struct lpfc_hba *phba = vport->phba; 7648 int i; 7649 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 7650 7651 spin_lock_irq(&phba->hbalock); 7652 vport->load_flag |= FC_UNLOADING; 7653 spin_unlock_irq(&phba->hbalock); 7654 7655 lpfc_free_sysfs_attr(vport); 7656 7657 /* Release all the vports against this physical port */ 7658 vports = lpfc_create_vport_work_array(phba); 7659 if (vports != NULL) 7660 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 7661 fc_vport_terminate(vports[i]->fc_vport); 7662 lpfc_destroy_vport_work_array(phba, vports); 7663 7664 /* Remove FC host and then SCSI host with the physical port */ 7665 fc_remove_host(shost); 7666 scsi_remove_host(shost); 7667 lpfc_cleanup(vport); 7668 7669 /* 7670 * Bring down the SLI Layer. This step disable all interrupts, 7671 * clears the rings, discards all mailbox commands, and resets 7672 * the HBA. 7673 */ 7674 7675 /* HBA interrupt will be diabled after this call */ 7676 lpfc_sli_hba_down(phba); 7677 /* Stop kthread signal shall trigger work_done one more time */ 7678 kthread_stop(phba->worker_thread); 7679 /* Final cleanup of txcmplq and reset the HBA */ 7680 lpfc_sli_brdrestart(phba); 7681 7682 lpfc_stop_hba_timers(phba); 7683 spin_lock_irq(&phba->hbalock); 7684 list_del_init(&vport->listentry); 7685 spin_unlock_irq(&phba->hbalock); 7686 7687 lpfc_debugfs_terminate(vport); 7688 7689 /* Disable interrupt */ 7690 lpfc_sli_disable_intr(phba); 7691 7692 pci_set_drvdata(pdev, NULL); 7693 scsi_host_put(shost); 7694 7695 /* 7696 * Call scsi_free before mem_free since scsi bufs are released to their 7697 * corresponding pools here. 7698 */ 7699 lpfc_scsi_free(phba); 7700 lpfc_mem_free_all(phba); 7701 7702 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7703 phba->hbqslimp.virt, phba->hbqslimp.phys); 7704 7705 /* Free resources associated with SLI2 interface */ 7706 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7707 phba->slim2p.virt, phba->slim2p.phys); 7708 7709 /* unmap adapter SLIM and Control Registers */ 7710 iounmap(phba->ctrl_regs_memmap_p); 7711 iounmap(phba->slim_memmap_p); 7712 7713 lpfc_hba_free(phba); 7714 7715 pci_release_selected_regions(pdev, bars); 7716 pci_disable_device(pdev); 7717} 7718 7719/** 7720 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 7721 * @pdev: pointer to PCI device 7722 * @msg: power management message 7723 * 7724 * This routine is to be called from the kernel's PCI subsystem to support 7725 * system Power Management (PM) to device with SLI-3 interface spec. When 7726 * PM invokes this method, it quiesces the device by stopping the driver's 7727 * worker thread for the device, turning off device's interrupt and DMA, 7728 * and bring the device offline. Note that as the driver implements the 7729 * minimum PM requirements to a power-aware driver's PM support for the 7730 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 7731 * to the suspend() method call will be treated as SUSPEND and the driver will 7732 * fully reinitialize its device during resume() method call, the driver will 7733 * set device to PCI_D3hot state in PCI config space instead of setting it 7734 * according to the @msg provided by the PM. 7735 * 7736 * Return code 7737 * 0 - driver suspended the device 7738 * Error otherwise 7739 **/ 7740static int 7741lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 7742{ 7743 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7744 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7745 7746 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7747 "0473 PCI device Power Management suspend.\n"); 7748 7749 /* Bring down the device */ 7750 lpfc_offline_prep(phba); 7751 lpfc_offline(phba); 7752 kthread_stop(phba->worker_thread); 7753 7754 /* Disable interrupt from device */ 7755 lpfc_sli_disable_intr(phba); 7756 7757 /* Save device state to PCI config space */ 7758 pci_save_state(pdev); 7759 pci_set_power_state(pdev, PCI_D3hot); 7760 7761 return 0; 7762} 7763 7764/** 7765 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 7766 * @pdev: pointer to PCI device 7767 * 7768 * This routine is to be called from the kernel's PCI subsystem to support 7769 * system Power Management (PM) to device with SLI-3 interface spec. When PM 7770 * invokes this method, it restores the device's PCI config space state and 7771 * fully reinitializes the device and brings it online. Note that as the 7772 * driver implements the minimum PM requirements to a power-aware driver's 7773 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 7774 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 7775 * driver will fully reinitialize its device during resume() method call, 7776 * the device will be set to PCI_D0 directly in PCI config space before 7777 * restoring the state. 7778 * 7779 * Return code 7780 * 0 - driver suspended the device 7781 * Error otherwise 7782 **/ 7783static int 7784lpfc_pci_resume_one_s3(struct pci_dev *pdev) 7785{ 7786 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7787 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7788 uint32_t intr_mode; 7789 int error; 7790 7791 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7792 "0452 PCI device Power Management resume.\n"); 7793 7794 /* Restore device state from PCI config space */ 7795 pci_set_power_state(pdev, PCI_D0); 7796 pci_restore_state(pdev); 7797 7798 /* 7799 * As the new kernel behavior of pci_restore_state() API call clears 7800 * device saved_state flag, need to save the restored state again. 7801 */ 7802 pci_save_state(pdev); 7803 7804 if (pdev->is_busmaster) 7805 pci_set_master(pdev); 7806 7807 /* Startup the kernel thread for this host adapter. */ 7808 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7809 "lpfc_worker_%d", phba->brd_no); 7810 if (IS_ERR(phba->worker_thread)) { 7811 error = PTR_ERR(phba->worker_thread); 7812 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7813 "0434 PM resume failed to start worker " 7814 "thread: error=x%x.\n", error); 7815 return error; 7816 } 7817 7818 /* Configure and enable interrupt */ 7819 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7820 if (intr_mode == LPFC_INTR_ERROR) { 7821 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7822 "0430 PM resume Failed to enable interrupt\n"); 7823 return -EIO; 7824 } else 7825 phba->intr_mode = intr_mode; 7826 7827 /* Restart HBA and bring it online */ 7828 lpfc_sli_brdrestart(phba); 7829 lpfc_online(phba); 7830 7831 /* Log the current active interrupt mode */ 7832 lpfc_log_intr_mode(phba, phba->intr_mode); 7833 7834 return 0; 7835} 7836 7837/** 7838 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 7839 * @phba: pointer to lpfc hba data structure. 7840 * 7841 * This routine is called to prepare the SLI3 device for PCI slot recover. It 7842 * aborts all the outstanding SCSI I/Os to the pci device. 7843 **/ 7844static void 7845lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 7846{ 7847 struct lpfc_sli *psli = &phba->sli; 7848 struct lpfc_sli_ring *pring; 7849 7850 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7851 "2723 PCI channel I/O abort preparing for recovery\n"); 7852 7853 /* 7854 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 7855 * and let the SCSI mid-layer to retry them to recover. 7856 */ 7857 pring = &psli->ring[psli->fcp_ring]; 7858 lpfc_sli_abort_iocb_ring(phba, pring); 7859} 7860 7861/** 7862 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 7863 * @phba: pointer to lpfc hba data structure. 7864 * 7865 * This routine is called to prepare the SLI3 device for PCI slot reset. It 7866 * disables the device interrupt and pci device, and aborts the internal FCP 7867 * pending I/Os. 7868 **/ 7869static void 7870lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 7871{ 7872 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7873 "2710 PCI channel disable preparing for reset\n"); 7874 7875 /* Block all SCSI devices' I/Os on the host */ 7876 lpfc_scsi_dev_block(phba); 7877 7878 /* stop all timers */ 7879 lpfc_stop_hba_timers(phba); 7880 7881 /* Disable interrupt and pci device */ 7882 lpfc_sli_disable_intr(phba); 7883 pci_disable_device(phba->pcidev); 7884 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 7885 lpfc_sli_flush_fcp_rings(phba); 7886} 7887 7888/** 7889 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 7890 * @phba: pointer to lpfc hba data structure. 7891 * 7892 * This routine is called to prepare the SLI3 device for PCI slot permanently 7893 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 7894 * pending I/Os. 7895 **/ 7896static void 7897lpfc_prep_dev_for_perm_failure(struct lpfc_hba *phba) 7898{ 7899 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7900 "2711 PCI channel permanent disable for failure\n"); 7901 /* Block all SCSI devices' I/Os on the host */ 7902 lpfc_scsi_dev_block(phba); 7903 7904 /* stop all timers */ 7905 lpfc_stop_hba_timers(phba); 7906 7907 /* Clean up all driver's outstanding SCSI I/Os */ 7908 lpfc_sli_flush_fcp_rings(phba); 7909} 7910 7911/** 7912 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 7913 * @pdev: pointer to PCI device. 7914 * @state: the current PCI connection state. 7915 * 7916 * This routine is called from the PCI subsystem for I/O error handling to 7917 * device with SLI-3 interface spec. This function is called by the PCI 7918 * subsystem after a PCI bus error affecting this device has been detected. 7919 * When this function is invoked, it will need to stop all the I/Os and 7920 * interrupt(s) to the device. Once that is done, it will return 7921 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 7922 * as desired. 7923 * 7924 * Return codes 7925 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 7926 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7927 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7928 **/ 7929static pci_ers_result_t 7930lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 7931{ 7932 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7933 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7934 7935 switch (state) { 7936 case pci_channel_io_normal: 7937 /* Non-fatal error, prepare for recovery */ 7938 lpfc_sli_prep_dev_for_recover(phba); 7939 return PCI_ERS_RESULT_CAN_RECOVER; 7940 case pci_channel_io_frozen: 7941 /* Fatal error, prepare for slot reset */ 7942 lpfc_sli_prep_dev_for_reset(phba); 7943 return PCI_ERS_RESULT_NEED_RESET; 7944 case pci_channel_io_perm_failure: 7945 /* Permanent failure, prepare for device down */ 7946 lpfc_prep_dev_for_perm_failure(phba); 7947 return PCI_ERS_RESULT_DISCONNECT; 7948 default: 7949 /* Unknown state, prepare and request slot reset */ 7950 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7951 "0472 Unknown PCI error state: x%x\n", state); 7952 lpfc_sli_prep_dev_for_reset(phba); 7953 return PCI_ERS_RESULT_NEED_RESET; 7954 } 7955} 7956 7957/** 7958 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 7959 * @pdev: pointer to PCI device. 7960 * 7961 * This routine is called from the PCI subsystem for error handling to 7962 * device with SLI-3 interface spec. This is called after PCI bus has been 7963 * reset to restart the PCI card from scratch, as if from a cold-boot. 7964 * During the PCI subsystem error recovery, after driver returns 7965 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 7966 * recovery and then call this routine before calling the .resume method 7967 * to recover the device. This function will initialize the HBA device, 7968 * enable the interrupt, but it will just put the HBA to offline state 7969 * without passing any I/O traffic. 7970 * 7971 * Return codes 7972 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7973 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7974 */ 7975static pci_ers_result_t 7976lpfc_io_slot_reset_s3(struct pci_dev *pdev) 7977{ 7978 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7979 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7980 struct lpfc_sli *psli = &phba->sli; 7981 uint32_t intr_mode; 7982 7983 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 7984 if (pci_enable_device_mem(pdev)) { 7985 printk(KERN_ERR "lpfc: Cannot re-enable " 7986 "PCI device after reset.\n"); 7987 return PCI_ERS_RESULT_DISCONNECT; 7988 } 7989 7990 pci_restore_state(pdev); 7991 7992 /* 7993 * As the new kernel behavior of pci_restore_state() API call clears 7994 * device saved_state flag, need to save the restored state again. 7995 */ 7996 pci_save_state(pdev); 7997 7998 if (pdev->is_busmaster) 7999 pci_set_master(pdev); 8000 8001 spin_lock_irq(&phba->hbalock); 8002 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 8003 spin_unlock_irq(&phba->hbalock); 8004 8005 /* Configure and enable interrupt */ 8006 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8007 if (intr_mode == LPFC_INTR_ERROR) { 8008 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8009 "0427 Cannot re-enable interrupt after " 8010 "slot reset.\n"); 8011 return PCI_ERS_RESULT_DISCONNECT; 8012 } else 8013 phba->intr_mode = intr_mode; 8014 8015 /* Take device offline; this will perform cleanup */ 8016 lpfc_offline(phba); 8017 lpfc_sli_brdrestart(phba); 8018 8019 /* Log the current active interrupt mode */ 8020 lpfc_log_intr_mode(phba, phba->intr_mode); 8021 8022 return PCI_ERS_RESULT_RECOVERED; 8023} 8024 8025/** 8026 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 8027 * @pdev: pointer to PCI device 8028 * 8029 * This routine is called from the PCI subsystem for error handling to device 8030 * with SLI-3 interface spec. It is called when kernel error recovery tells 8031 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8032 * error recovery. After this call, traffic can start to flow from this device 8033 * again. 8034 */ 8035static void 8036lpfc_io_resume_s3(struct pci_dev *pdev) 8037{ 8038 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8039 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8040 8041 /* Bring device online, it will be no-op for non-fatal error resume */ 8042 lpfc_online(phba); 8043 8044 /* Clean up Advanced Error Reporting (AER) if needed */ 8045 if (phba->hba_flag & HBA_AER_ENABLED) 8046 pci_cleanup_aer_uncorrect_error_status(pdev); 8047} 8048 8049/** 8050 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 8051 * @phba: pointer to lpfc hba data structure. 8052 * 8053 * returns the number of ELS/CT IOCBs to reserve 8054 **/ 8055int 8056lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 8057{ 8058 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 8059 8060 if (phba->sli_rev == LPFC_SLI_REV4) { 8061 if (max_xri <= 100) 8062 return 10; 8063 else if (max_xri <= 256) 8064 return 25; 8065 else if (max_xri <= 512) 8066 return 50; 8067 else if (max_xri <= 1024) 8068 return 100; 8069 else 8070 return 150; 8071 } else 8072 return 0; 8073} 8074 8075/** 8076 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 8077 * @pdev: pointer to PCI device 8078 * @pid: pointer to PCI device identifier 8079 * 8080 * This routine is called from the kernel's PCI subsystem to device with 8081 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8082 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8083 * information of the device and driver to see if the driver state that it 8084 * can support this kind of device. If the match is successful, the driver 8085 * core invokes this routine. If this routine determines it can claim the HBA, 8086 * it does all the initialization that it needs to do to handle the HBA 8087 * properly. 8088 * 8089 * Return code 8090 * 0 - driver can claim the device 8091 * negative value - driver can not claim the device 8092 **/ 8093static int __devinit 8094lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 8095{ 8096 struct lpfc_hba *phba; 8097 struct lpfc_vport *vport = NULL; 8098 struct Scsi_Host *shost = NULL; 8099 int error; 8100 uint32_t cfg_mode, intr_mode; 8101 int mcnt; 8102 8103 /* Allocate memory for HBA structure */ 8104 phba = lpfc_hba_alloc(pdev); 8105 if (!phba) 8106 return -ENOMEM; 8107 8108 /* Perform generic PCI device enabling operation */ 8109 error = lpfc_enable_pci_dev(phba); 8110 if (error) { 8111 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8112 "1409 Failed to enable pci device.\n"); 8113 goto out_free_phba; 8114 } 8115 8116 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 8117 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 8118 if (error) 8119 goto out_disable_pci_dev; 8120 8121 /* Set up SLI-4 specific device PCI memory space */ 8122 error = lpfc_sli4_pci_mem_setup(phba); 8123 if (error) { 8124 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8125 "1410 Failed to set up pci memory space.\n"); 8126 goto out_disable_pci_dev; 8127 } 8128 8129 /* Set up phase-1 common device driver resources */ 8130 error = lpfc_setup_driver_resource_phase1(phba); 8131 if (error) { 8132 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8133 "1411 Failed to set up driver resource.\n"); 8134 goto out_unset_pci_mem_s4; 8135 } 8136 8137 /* Set up SLI-4 Specific device driver resources */ 8138 error = lpfc_sli4_driver_resource_setup(phba); 8139 if (error) { 8140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8141 "1412 Failed to set up driver resource.\n"); 8142 goto out_unset_pci_mem_s4; 8143 } 8144 8145 /* Initialize and populate the iocb list per host */ 8146 error = lpfc_init_iocb_list(phba, 8147 phba->sli4_hba.max_cfg_param.max_xri); 8148 if (error) { 8149 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8150 "1413 Failed to initialize iocb list.\n"); 8151 goto out_unset_driver_resource_s4; 8152 } 8153 8154 /* Set up common device driver resources */ 8155 error = lpfc_setup_driver_resource_phase2(phba); 8156 if (error) { 8157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8158 "1414 Failed to set up driver resource.\n"); 8159 goto out_free_iocb_list; 8160 } 8161 8162 /* Create SCSI host to the physical port */ 8163 error = lpfc_create_shost(phba); 8164 if (error) { 8165 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8166 "1415 Failed to create scsi host.\n"); 8167 goto out_unset_driver_resource; 8168 } 8169 8170 /* Configure sysfs attributes */ 8171 vport = phba->pport; 8172 error = lpfc_alloc_sysfs_attr(vport); 8173 if (error) { 8174 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8175 "1416 Failed to allocate sysfs attr\n"); 8176 goto out_destroy_shost; 8177 } 8178 8179 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8180 /* Now, trying to enable interrupt and bring up the device */ 8181 cfg_mode = phba->cfg_use_msi; 8182 while (true) { 8183 /* Put device to a known state before enabling interrupt */ 8184 lpfc_stop_port(phba); 8185 /* Configure and enable interrupt */ 8186 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 8187 if (intr_mode == LPFC_INTR_ERROR) { 8188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8189 "0426 Failed to enable interrupt.\n"); 8190 error = -ENODEV; 8191 goto out_free_sysfs_attr; 8192 } 8193 /* Default to single FCP EQ for non-MSI-X */ 8194 if (phba->intr_type != MSIX) 8195 phba->cfg_fcp_eq_count = 1; 8196 /* Set up SLI-4 HBA */ 8197 if (lpfc_sli4_hba_setup(phba)) { 8198 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8199 "1421 Failed to set up hba\n"); 8200 error = -ENODEV; 8201 goto out_disable_intr; 8202 } 8203 8204 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 8205 if (intr_mode != 0) 8206 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 8207 LPFC_ACT_INTR_CNT); 8208 8209 /* Check active interrupts received only for MSI/MSI-X */ 8210 if (intr_mode == 0 || 8211 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 8212 /* Log the current active interrupt mode */ 8213 phba->intr_mode = intr_mode; 8214 lpfc_log_intr_mode(phba, intr_mode); 8215 break; 8216 } 8217 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8218 "0451 Configure interrupt mode (%d) " 8219 "failed active interrupt test.\n", 8220 intr_mode); 8221 /* Unset the preivous SLI-4 HBA setup */ 8222 lpfc_sli4_unset_hba(phba); 8223 /* Try next level of interrupt mode */ 8224 cfg_mode = --intr_mode; 8225 } 8226 8227 /* Perform post initialization setup */ 8228 lpfc_post_init_setup(phba); 8229 8230 /* Check if there are static vports to be created. */ 8231 lpfc_create_static_vport(phba); 8232 8233 return 0; 8234 8235out_disable_intr: 8236 lpfc_sli4_disable_intr(phba); 8237out_free_sysfs_attr: 8238 lpfc_free_sysfs_attr(vport); 8239out_destroy_shost: 8240 lpfc_destroy_shost(phba); 8241out_unset_driver_resource: 8242 lpfc_unset_driver_resource_phase2(phba); 8243out_free_iocb_list: 8244 lpfc_free_iocb_list(phba); 8245out_unset_driver_resource_s4: 8246 lpfc_sli4_driver_resource_unset(phba); 8247out_unset_pci_mem_s4: 8248 lpfc_sli4_pci_mem_unset(phba); 8249out_disable_pci_dev: 8250 lpfc_disable_pci_dev(phba); 8251 if (shost) 8252 scsi_host_put(shost); 8253out_free_phba: 8254 lpfc_hba_free(phba); 8255 return error; 8256} 8257 8258/** 8259 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 8260 * @pdev: pointer to PCI device 8261 * 8262 * This routine is called from the kernel's PCI subsystem to device with 8263 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8264 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8265 * device to be removed from the PCI subsystem properly. 8266 **/ 8267static void __devexit 8268lpfc_pci_remove_one_s4(struct pci_dev *pdev) 8269{ 8270 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8271 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8272 struct lpfc_vport **vports; 8273 struct lpfc_hba *phba = vport->phba; 8274 int i; 8275 8276 /* Mark the device unloading flag */ 8277 spin_lock_irq(&phba->hbalock); 8278 vport->load_flag |= FC_UNLOADING; 8279 spin_unlock_irq(&phba->hbalock); 8280 8281 /* Free the HBA sysfs attributes */ 8282 lpfc_free_sysfs_attr(vport); 8283 8284 /* Release all the vports against this physical port */ 8285 vports = lpfc_create_vport_work_array(phba); 8286 if (vports != NULL) 8287 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 8288 fc_vport_terminate(vports[i]->fc_vport); 8289 lpfc_destroy_vport_work_array(phba, vports); 8290 8291 /* Remove FC host and then SCSI host with the physical port */ 8292 fc_remove_host(shost); 8293 scsi_remove_host(shost); 8294 8295 /* Perform cleanup on the physical port */ 8296 lpfc_cleanup(vport); 8297 8298 /* 8299 * Bring down the SLI Layer. This step disables all interrupts, 8300 * clears the rings, discards all mailbox commands, and resets 8301 * the HBA FCoE function. 8302 */ 8303 lpfc_debugfs_terminate(vport); 8304 lpfc_sli4_hba_unset(phba); 8305 8306 spin_lock_irq(&phba->hbalock); 8307 list_del_init(&vport->listentry); 8308 spin_unlock_irq(&phba->hbalock); 8309 8310 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi 8311 * buffers are released to their corresponding pools here. 8312 */ 8313 lpfc_scsi_free(phba); 8314 lpfc_sli4_driver_resource_unset(phba); 8315 8316 /* Unmap adapter Control and Doorbell registers */ 8317 lpfc_sli4_pci_mem_unset(phba); 8318 8319 /* Release PCI resources and disable device's PCI function */ 8320 scsi_host_put(shost); 8321 lpfc_disable_pci_dev(phba); 8322 8323 /* Finally, free the driver's device data structure */ 8324 lpfc_hba_free(phba); 8325 8326 return; 8327} 8328 8329/** 8330 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 8331 * @pdev: pointer to PCI device 8332 * @msg: power management message 8333 * 8334 * This routine is called from the kernel's PCI subsystem to support system 8335 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 8336 * this method, it quiesces the device by stopping the driver's worker 8337 * thread for the device, turning off device's interrupt and DMA, and bring 8338 * the device offline. Note that as the driver implements the minimum PM 8339 * requirements to a power-aware driver's PM support for suspend/resume -- all 8340 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 8341 * method call will be treated as SUSPEND and the driver will fully 8342 * reinitialize its device during resume() method call, the driver will set 8343 * device to PCI_D3hot state in PCI config space instead of setting it 8344 * according to the @msg provided by the PM. 8345 * 8346 * Return code 8347 * 0 - driver suspended the device 8348 * Error otherwise 8349 **/ 8350static int 8351lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 8352{ 8353 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8354 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8355 8356 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8357 "0298 PCI device Power Management suspend.\n"); 8358 8359 /* Bring down the device */ 8360 lpfc_offline_prep(phba); 8361 lpfc_offline(phba); 8362 kthread_stop(phba->worker_thread); 8363 8364 /* Disable interrupt from device */ 8365 lpfc_sli4_disable_intr(phba); 8366 8367 /* Save device state to PCI config space */ 8368 pci_save_state(pdev); 8369 pci_set_power_state(pdev, PCI_D3hot); 8370 8371 return 0; 8372} 8373 8374/** 8375 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 8376 * @pdev: pointer to PCI device 8377 * 8378 * This routine is called from the kernel's PCI subsystem to support system 8379 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 8380 * this method, it restores the device's PCI config space state and fully 8381 * reinitializes the device and brings it online. Note that as the driver 8382 * implements the minimum PM requirements to a power-aware driver's PM for 8383 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8384 * to the suspend() method call will be treated as SUSPEND and the driver 8385 * will fully reinitialize its device during resume() method call, the device 8386 * will be set to PCI_D0 directly in PCI config space before restoring the 8387 * state. 8388 * 8389 * Return code 8390 * 0 - driver suspended the device 8391 * Error otherwise 8392 **/ 8393static int 8394lpfc_pci_resume_one_s4(struct pci_dev *pdev) 8395{ 8396 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8397 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8398 uint32_t intr_mode; 8399 int error; 8400 8401 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8402 "0292 PCI device Power Management resume.\n"); 8403 8404 /* Restore device state from PCI config space */ 8405 pci_set_power_state(pdev, PCI_D0); 8406 pci_restore_state(pdev); 8407 8408 /* 8409 * As the new kernel behavior of pci_restore_state() API call clears 8410 * device saved_state flag, need to save the restored state again. 8411 */ 8412 pci_save_state(pdev); 8413 8414 if (pdev->is_busmaster) 8415 pci_set_master(pdev); 8416 8417 /* Startup the kernel thread for this host adapter. */ 8418 phba->worker_thread = kthread_run(lpfc_do_work, phba, 8419 "lpfc_worker_%d", phba->brd_no); 8420 if (IS_ERR(phba->worker_thread)) { 8421 error = PTR_ERR(phba->worker_thread); 8422 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8423 "0293 PM resume failed to start worker " 8424 "thread: error=x%x.\n", error); 8425 return error; 8426 } 8427 8428 /* Configure and enable interrupt */ 8429 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 8430 if (intr_mode == LPFC_INTR_ERROR) { 8431 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8432 "0294 PM resume Failed to enable interrupt\n"); 8433 return -EIO; 8434 } else 8435 phba->intr_mode = intr_mode; 8436 8437 /* Restart HBA and bring it online */ 8438 lpfc_sli_brdrestart(phba); 8439 lpfc_online(phba); 8440 8441 /* Log the current active interrupt mode */ 8442 lpfc_log_intr_mode(phba, phba->intr_mode); 8443 8444 return 0; 8445} 8446 8447/** 8448 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 8449 * @pdev: pointer to PCI device. 8450 * @state: the current PCI connection state. 8451 * 8452 * This routine is called from the PCI subsystem for error handling to device 8453 * with SLI-4 interface spec. This function is called by the PCI subsystem 8454 * after a PCI bus error affecting this device has been detected. When this 8455 * function is invoked, it will need to stop all the I/Os and interrupt(s) 8456 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 8457 * for the PCI subsystem to perform proper recovery as desired. 8458 * 8459 * Return codes 8460 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8461 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8462 **/ 8463static pci_ers_result_t 8464lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 8465{ 8466 return PCI_ERS_RESULT_NEED_RESET; 8467} 8468 8469/** 8470 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 8471 * @pdev: pointer to PCI device. 8472 * 8473 * This routine is called from the PCI subsystem for error handling to device 8474 * with SLI-4 interface spec. It is called after PCI bus has been reset to 8475 * restart the PCI card from scratch, as if from a cold-boot. During the 8476 * PCI subsystem error recovery, after the driver returns 8477 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 8478 * recovery and then call this routine before calling the .resume method to 8479 * recover the device. This function will initialize the HBA device, enable 8480 * the interrupt, but it will just put the HBA to offline state without 8481 * passing any I/O traffic. 8482 * 8483 * Return codes 8484 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8485 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8486 */ 8487static pci_ers_result_t 8488lpfc_io_slot_reset_s4(struct pci_dev *pdev) 8489{ 8490 return PCI_ERS_RESULT_RECOVERED; 8491} 8492 8493/** 8494 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 8495 * @pdev: pointer to PCI device 8496 * 8497 * This routine is called from the PCI subsystem for error handling to device 8498 * with SLI-4 interface spec. It is called when kernel error recovery tells 8499 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8500 * error recovery. After this call, traffic can start to flow from this device 8501 * again. 8502 **/ 8503static void 8504lpfc_io_resume_s4(struct pci_dev *pdev) 8505{ 8506 return; 8507} 8508 8509/** 8510 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 8511 * @pdev: pointer to PCI device 8512 * @pid: pointer to PCI device identifier 8513 * 8514 * This routine is to be registered to the kernel's PCI subsystem. When an 8515 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 8516 * at PCI device-specific information of the device and driver to see if the 8517 * driver state that it can support this kind of device. If the match is 8518 * successful, the driver core invokes this routine. This routine dispatches 8519 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 8520 * do all the initialization that it needs to do to handle the HBA device 8521 * properly. 8522 * 8523 * Return code 8524 * 0 - driver can claim the device 8525 * negative value - driver can not claim the device 8526 **/ 8527static int __devinit 8528lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 8529{ 8530 int rc; 8531 struct lpfc_sli_intf intf; 8532 8533 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 8534 return -ENODEV; 8535 8536 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 8537 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 8538 rc = lpfc_pci_probe_one_s4(pdev, pid); 8539 else 8540 rc = lpfc_pci_probe_one_s3(pdev, pid); 8541 8542 return rc; 8543} 8544 8545/** 8546 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 8547 * @pdev: pointer to PCI device 8548 * 8549 * This routine is to be registered to the kernel's PCI subsystem. When an 8550 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 8551 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 8552 * remove routine, which will perform all the necessary cleanup for the 8553 * device to be removed from the PCI subsystem properly. 8554 **/ 8555static void __devexit 8556lpfc_pci_remove_one(struct pci_dev *pdev) 8557{ 8558 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8559 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8560 8561 switch (phba->pci_dev_grp) { 8562 case LPFC_PCI_DEV_LP: 8563 lpfc_pci_remove_one_s3(pdev); 8564 break; 8565 case LPFC_PCI_DEV_OC: 8566 lpfc_pci_remove_one_s4(pdev); 8567 break; 8568 default: 8569 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8570 "1424 Invalid PCI device group: 0x%x\n", 8571 phba->pci_dev_grp); 8572 break; 8573 } 8574 return; 8575} 8576 8577/** 8578 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 8579 * @pdev: pointer to PCI device 8580 * @msg: power management message 8581 * 8582 * This routine is to be registered to the kernel's PCI subsystem to support 8583 * system Power Management (PM). When PM invokes this method, it dispatches 8584 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 8585 * suspend the device. 8586 * 8587 * Return code 8588 * 0 - driver suspended the device 8589 * Error otherwise 8590 **/ 8591static int 8592lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 8593{ 8594 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8595 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8596 int rc = -ENODEV; 8597 8598 switch (phba->pci_dev_grp) { 8599 case LPFC_PCI_DEV_LP: 8600 rc = lpfc_pci_suspend_one_s3(pdev, msg); 8601 break; 8602 case LPFC_PCI_DEV_OC: 8603 rc = lpfc_pci_suspend_one_s4(pdev, msg); 8604 break; 8605 default: 8606 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8607 "1425 Invalid PCI device group: 0x%x\n", 8608 phba->pci_dev_grp); 8609 break; 8610 } 8611 return rc; 8612} 8613 8614/** 8615 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 8616 * @pdev: pointer to PCI device 8617 * 8618 * This routine is to be registered to the kernel's PCI subsystem to support 8619 * system Power Management (PM). When PM invokes this method, it dispatches 8620 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 8621 * resume the device. 8622 * 8623 * Return code 8624 * 0 - driver suspended the device 8625 * Error otherwise 8626 **/ 8627static int 8628lpfc_pci_resume_one(struct pci_dev *pdev) 8629{ 8630 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8631 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8632 int rc = -ENODEV; 8633 8634 switch (phba->pci_dev_grp) { 8635 case LPFC_PCI_DEV_LP: 8636 rc = lpfc_pci_resume_one_s3(pdev); 8637 break; 8638 case LPFC_PCI_DEV_OC: 8639 rc = lpfc_pci_resume_one_s4(pdev); 8640 break; 8641 default: 8642 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8643 "1426 Invalid PCI device group: 0x%x\n", 8644 phba->pci_dev_grp); 8645 break; 8646 } 8647 return rc; 8648} 8649 8650/** 8651 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 8652 * @pdev: pointer to PCI device. 8653 * @state: the current PCI connection state. 8654 * 8655 * This routine is registered to the PCI subsystem for error handling. This 8656 * function is called by the PCI subsystem after a PCI bus error affecting 8657 * this device has been detected. When this routine is invoked, it dispatches 8658 * the action to the proper SLI-3 or SLI-4 device error detected handling 8659 * routine, which will perform the proper error detected operation. 8660 * 8661 * Return codes 8662 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8663 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8664 **/ 8665static pci_ers_result_t 8666lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 8667{ 8668 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8669 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8670 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 8671 8672 switch (phba->pci_dev_grp) { 8673 case LPFC_PCI_DEV_LP: 8674 rc = lpfc_io_error_detected_s3(pdev, state); 8675 break; 8676 case LPFC_PCI_DEV_OC: 8677 rc = lpfc_io_error_detected_s4(pdev, state); 8678 break; 8679 default: 8680 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8681 "1427 Invalid PCI device group: 0x%x\n", 8682 phba->pci_dev_grp); 8683 break; 8684 } 8685 return rc; 8686} 8687 8688/** 8689 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 8690 * @pdev: pointer to PCI device. 8691 * 8692 * This routine is registered to the PCI subsystem for error handling. This 8693 * function is called after PCI bus has been reset to restart the PCI card 8694 * from scratch, as if from a cold-boot. When this routine is invoked, it 8695 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 8696 * routine, which will perform the proper device reset. 8697 * 8698 * Return codes 8699 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8700 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8701 **/ 8702static pci_ers_result_t 8703lpfc_io_slot_reset(struct pci_dev *pdev) 8704{ 8705 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8706 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8707 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 8708 8709 switch (phba->pci_dev_grp) { 8710 case LPFC_PCI_DEV_LP: 8711 rc = lpfc_io_slot_reset_s3(pdev); 8712 break; 8713 case LPFC_PCI_DEV_OC: 8714 rc = lpfc_io_slot_reset_s4(pdev); 8715 break; 8716 default: 8717 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8718 "1428 Invalid PCI device group: 0x%x\n", 8719 phba->pci_dev_grp); 8720 break; 8721 } 8722 return rc; 8723} 8724 8725/** 8726 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 8727 * @pdev: pointer to PCI device 8728 * 8729 * This routine is registered to the PCI subsystem for error handling. It 8730 * is called when kernel error recovery tells the lpfc driver that it is 8731 * OK to resume normal PCI operation after PCI bus error recovery. When 8732 * this routine is invoked, it dispatches the action to the proper SLI-3 8733 * or SLI-4 device io_resume routine, which will resume the device operation. 8734 **/ 8735static void 8736lpfc_io_resume(struct pci_dev *pdev) 8737{ 8738 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8739 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8740 8741 switch (phba->pci_dev_grp) { 8742 case LPFC_PCI_DEV_LP: 8743 lpfc_io_resume_s3(pdev); 8744 break; 8745 case LPFC_PCI_DEV_OC: 8746 lpfc_io_resume_s4(pdev); 8747 break; 8748 default: 8749 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8750 "1429 Invalid PCI device group: 0x%x\n", 8751 phba->pci_dev_grp); 8752 break; 8753 } 8754 return; 8755} 8756 8757static struct pci_device_id lpfc_id_table[] = { 8758 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 8759 PCI_ANY_ID, PCI_ANY_ID, }, 8760 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 8761 PCI_ANY_ID, PCI_ANY_ID, }, 8762 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 8763 PCI_ANY_ID, PCI_ANY_ID, }, 8764 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 8765 PCI_ANY_ID, PCI_ANY_ID, }, 8766 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 8767 PCI_ANY_ID, PCI_ANY_ID, }, 8768 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 8769 PCI_ANY_ID, PCI_ANY_ID, }, 8770 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 8771 PCI_ANY_ID, PCI_ANY_ID, }, 8772 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 8773 PCI_ANY_ID, PCI_ANY_ID, }, 8774 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 8775 PCI_ANY_ID, PCI_ANY_ID, }, 8776 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 8777 PCI_ANY_ID, PCI_ANY_ID, }, 8778 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 8779 PCI_ANY_ID, PCI_ANY_ID, }, 8780 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 8781 PCI_ANY_ID, PCI_ANY_ID, }, 8782 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 8783 PCI_ANY_ID, PCI_ANY_ID, }, 8784 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 8785 PCI_ANY_ID, PCI_ANY_ID, }, 8786 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 8787 PCI_ANY_ID, PCI_ANY_ID, }, 8788 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 8789 PCI_ANY_ID, PCI_ANY_ID, }, 8790 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 8791 PCI_ANY_ID, PCI_ANY_ID, }, 8792 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 8793 PCI_ANY_ID, PCI_ANY_ID, }, 8794 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 8795 PCI_ANY_ID, PCI_ANY_ID, }, 8796 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 8797 PCI_ANY_ID, PCI_ANY_ID, }, 8798 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 8799 PCI_ANY_ID, PCI_ANY_ID, }, 8800 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 8801 PCI_ANY_ID, PCI_ANY_ID, }, 8802 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 8803 PCI_ANY_ID, PCI_ANY_ID, }, 8804 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 8805 PCI_ANY_ID, PCI_ANY_ID, }, 8806 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 8807 PCI_ANY_ID, PCI_ANY_ID, }, 8808 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 8809 PCI_ANY_ID, PCI_ANY_ID, }, 8810 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 8811 PCI_ANY_ID, PCI_ANY_ID, }, 8812 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 8813 PCI_ANY_ID, PCI_ANY_ID, }, 8814 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 8815 PCI_ANY_ID, PCI_ANY_ID, }, 8816 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 8817 PCI_ANY_ID, PCI_ANY_ID, }, 8818 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 8819 PCI_ANY_ID, PCI_ANY_ID, }, 8820 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 8821 PCI_ANY_ID, PCI_ANY_ID, }, 8822 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 8823 PCI_ANY_ID, PCI_ANY_ID, }, 8824 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 8825 PCI_ANY_ID, PCI_ANY_ID, }, 8826 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 8827 PCI_ANY_ID, PCI_ANY_ID, }, 8828 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 8829 PCI_ANY_ID, PCI_ANY_ID, }, 8830 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 8831 PCI_ANY_ID, PCI_ANY_ID, }, 8832 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 8833 PCI_ANY_ID, PCI_ANY_ID, }, 8834 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 8835 PCI_ANY_ID, PCI_ANY_ID, }, 8836 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 8837 PCI_ANY_ID, PCI_ANY_ID, }, 8838 { 0 } 8839}; 8840 8841MODULE_DEVICE_TABLE(pci, lpfc_id_table); 8842 8843static struct pci_error_handlers lpfc_err_handler = { 8844 .error_detected = lpfc_io_error_detected, 8845 .slot_reset = lpfc_io_slot_reset, 8846 .resume = lpfc_io_resume, 8847}; 8848 8849static struct pci_driver lpfc_driver = { 8850 .name = LPFC_DRIVER_NAME, 8851 .id_table = lpfc_id_table, 8852 .probe = lpfc_pci_probe_one, 8853 .remove = __devexit_p(lpfc_pci_remove_one), 8854 .suspend = lpfc_pci_suspend_one, 8855 .resume = lpfc_pci_resume_one, 8856 .err_handler = &lpfc_err_handler, 8857}; 8858 8859/** 8860 * lpfc_init - lpfc module initialization routine 8861 * 8862 * This routine is to be invoked when the lpfc module is loaded into the 8863 * kernel. The special kernel macro module_init() is used to indicate the 8864 * role of this routine to the kernel as lpfc module entry point. 8865 * 8866 * Return codes 8867 * 0 - successful 8868 * -ENOMEM - FC attach transport failed 8869 * all others - failed 8870 */ 8871static int __init 8872lpfc_init(void) 8873{ 8874 int error = 0; 8875 8876 printk(LPFC_MODULE_DESC "\n"); 8877 printk(LPFC_COPYRIGHT "\n"); 8878 8879 if (lpfc_enable_npiv) { 8880 lpfc_transport_functions.vport_create = lpfc_vport_create; 8881 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 8882 } 8883 lpfc_transport_template = 8884 fc_attach_transport(&lpfc_transport_functions); 8885 if (lpfc_transport_template == NULL) 8886 return -ENOMEM; 8887 if (lpfc_enable_npiv) { 8888 lpfc_vport_transport_template = 8889 fc_attach_transport(&lpfc_vport_transport_functions); 8890 if (lpfc_vport_transport_template == NULL) { 8891 fc_release_transport(lpfc_transport_template); 8892 return -ENOMEM; 8893 } 8894 } 8895 error = pci_register_driver(&lpfc_driver); 8896 if (error) { 8897 fc_release_transport(lpfc_transport_template); 8898 if (lpfc_enable_npiv) 8899 fc_release_transport(lpfc_vport_transport_template); 8900 } 8901 8902 return error; 8903} 8904 8905/** 8906 * lpfc_exit - lpfc module removal routine 8907 * 8908 * This routine is invoked when the lpfc module is removed from the kernel. 8909 * The special kernel macro module_exit() is used to indicate the role of 8910 * this routine to the kernel as lpfc module exit point. 8911 */ 8912static void __exit 8913lpfc_exit(void) 8914{ 8915 pci_unregister_driver(&lpfc_driver); 8916 fc_release_transport(lpfc_transport_template); 8917 if (lpfc_enable_npiv) 8918 fc_release_transport(lpfc_vport_transport_template); 8919 if (_dump_buf_data) { 8920 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 8921 "_dump_buf_data at 0x%p\n", 8922 (1L << _dump_buf_data_order), _dump_buf_data); 8923 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 8924 } 8925 8926 if (_dump_buf_dif) { 8927 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 8928 "_dump_buf_dif at 0x%p\n", 8929 (1L << _dump_buf_dif_order), _dump_buf_dif); 8930 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 8931 } 8932} 8933 8934module_init(lpfc_init); 8935module_exit(lpfc_exit); 8936MODULE_LICENSE("GPL"); 8937MODULE_DESCRIPTION(LPFC_MODULE_DESC); 8938MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 8939MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 8940