1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2008 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 32 #include <scsi/scsi.h> 33 #include <scsi/scsi_device.h> 34 #include <scsi/scsi_host.h> 35 #include <scsi/scsi_transport_fc.h> 36 37 #include "lpfc_hw.h" 38 #include "lpfc_sli.h" 39 #include "lpfc_disc.h" 40 #include "lpfc_scsi.h" 41 #include "lpfc.h" 42 #include "lpfc_logmsg.h" 43 #include "lpfc_crtn.h" 44 #include "lpfc_vport.h" 45 #include "lpfc_version.h" 46 47 static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int); 48 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 49 static int lpfc_post_rcv_buf(struct lpfc_hba *); 50 51 static struct scsi_transport_template *lpfc_transport_template = NULL; 52 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 53 static DEFINE_IDR(lpfc_hba_index); 54 55 /************************************************************************/ 56 /* */ 57 /* lpfc_config_port_prep */ 58 /* This routine will do LPFC initialization prior to the */ 59 /* CONFIG_PORT mailbox command. This will be initialized */ 60 /* as a SLI layer callback routine. */ 61 /* This routine returns 0 on success or -ERESTART if it wants */ 62 /* the SLI layer to reset the HBA and try again. Any */ 63 /* other return value indicates an error. */ 64 /* */ 65 /************************************************************************/ 66 int 67 lpfc_config_port_prep(struct lpfc_hba *phba) 68 { 69 lpfc_vpd_t *vp = &phba->vpd; 70 int i = 0, rc; 71 LPFC_MBOXQ_t *pmb; 72 MAILBOX_t *mb; 73 char *lpfc_vpd_data = NULL; 74 uint16_t offset = 0; 75 static char licensed[56] = 76 "key unlock for use with gnu public licensed code only\0"; 77 static int init_key = 1; 78 79 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 80 if (!pmb) { 81 phba->link_state = LPFC_HBA_ERROR; 82 return -ENOMEM; 83 } 84 85 mb = &pmb->mb; 86 phba->link_state = LPFC_INIT_MBX_CMDS; 87 88 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 89 if (init_key) { 90 uint32_t *ptext = (uint32_t *) licensed; 91 92 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 93 *ptext = cpu_to_be32(*ptext); 94 init_key = 0; 95 } 96 97 lpfc_read_nv(phba, pmb); 98 memset((char*)mb->un.varRDnvp.rsvd3, 0, 99 sizeof (mb->un.varRDnvp.rsvd3)); 100 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 101 sizeof (licensed)); 102 103 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 104 105 if (rc != MBX_SUCCESS) { 106 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 107 "0324 Config Port initialization " 108 "error, mbxCmd x%x READ_NVPARM, " 109 "mbxStatus x%x\n", 110 mb->mbxCommand, mb->mbxStatus); 111 mempool_free(pmb, phba->mbox_mem_pool); 112 return -ERESTART; 113 } 114 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 115 sizeof(phba->wwnn)); 116 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 117 sizeof(phba->wwpn)); 118 } 119 120 phba->sli3_options = 0x0; 121 122 /* Setup and issue mailbox READ REV command */ 123 lpfc_read_rev(phba, pmb); 124 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 125 if (rc != MBX_SUCCESS) { 126 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 127 "0439 Adapter failed to init, mbxCmd x%x " 128 "READ_REV, mbxStatus x%x\n", 129 mb->mbxCommand, mb->mbxStatus); 130 mempool_free( pmb, phba->mbox_mem_pool); 131 return -ERESTART; 132 } 133 134 135 /* 136 * The value of rr must be 1 since the driver set the cv field to 1. 137 * This setting requires the FW to set all revision fields. 138 */ 139 if (mb->un.varRdRev.rr == 0) { 140 vp->rev.rBit = 0; 141 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 142 "0440 Adapter failed to init, READ_REV has " 143 "missing revision information.\n"); 144 mempool_free(pmb, phba->mbox_mem_pool); 145 return -ERESTART; 146 } 147 148 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 149 mempool_free(pmb, phba->mbox_mem_pool); 150 return -EINVAL; 151 } 152 153 /* Save information as VPD data */ 154 vp->rev.rBit = 1; 155 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 156 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 157 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 158 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 159 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 160 vp->rev.biuRev = mb->un.varRdRev.biuRev; 161 vp->rev.smRev = mb->un.varRdRev.smRev; 162 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 163 vp->rev.endecRev = mb->un.varRdRev.endecRev; 164 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 165 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 166 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 167 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 168 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 169 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 170 171 /* If the sli feature level is less then 9, we must 172 * tear down all RPIs and VPIs on link down if NPIV 173 * is enabled. 174 */ 175 if (vp->rev.feaLevelHigh < 9) 176 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 177 178 if (lpfc_is_LC_HBA(phba->pcidev->device)) 179 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 180 sizeof (phba->RandomData)); 181 182 /* Get adapter VPD information */ 183 pmb->context2 = kmalloc(DMP_RSP_SIZE, GFP_KERNEL); 184 if (!pmb->context2) 185 goto out_free_mbox; 186 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 187 if (!lpfc_vpd_data) 188 goto out_free_context2; 189 190 do { 191 lpfc_dump_mem(phba, pmb, offset); 192 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 193 194 if (rc != MBX_SUCCESS) { 195 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 196 "0441 VPD not present on adapter, " 197 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 198 mb->mbxCommand, mb->mbxStatus); 199 mb->un.varDmp.word_cnt = 0; 200 } 201 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 202 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 203 lpfc_sli_pcimem_bcopy(pmb->context2, lpfc_vpd_data + offset, 204 mb->un.varDmp.word_cnt); 205 offset += mb->un.varDmp.word_cnt; 206 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 207 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 208 209 kfree(lpfc_vpd_data); 210 out_free_context2: 211 kfree(pmb->context2); 212 out_free_mbox: 213 mempool_free(pmb, phba->mbox_mem_pool); 214 return 0; 215 } 216 217 /* Completion handler for config async event mailbox command. */ 218 static void 219 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 220 { 221 if (pmboxq->mb.mbxStatus == MBX_SUCCESS) 222 phba->temp_sensor_support = 1; 223 else 224 phba->temp_sensor_support = 0; 225 mempool_free(pmboxq, phba->mbox_mem_pool); 226 return; 227 } 228 229 /************************************************************************/ 230 /* */ 231 /* lpfc_config_port_post */ 232 /* This routine will do LPFC initialization after the */ 233 /* CONFIG_PORT mailbox command. This will be initialized */ 234 /* as a SLI layer callback routine. */ 235 /* This routine returns 0 on success. Any other return value */ 236 /* indicates an error. */ 237 /* */ 238 /************************************************************************/ 239 int 240 lpfc_config_port_post(struct lpfc_hba *phba) 241 { 242 struct lpfc_vport *vport = phba->pport; 243 LPFC_MBOXQ_t *pmb; 244 MAILBOX_t *mb; 245 struct lpfc_dmabuf *mp; 246 struct lpfc_sli *psli = &phba->sli; 247 uint32_t status, timeout; 248 int i, j; 249 int rc; 250 251 spin_lock_irq(&phba->hbalock); 252 /* 253 * If the Config port completed correctly the HBA is not 254 * over heated any more. 255 */ 256 if (phba->over_temp_state == HBA_OVER_TEMP) 257 phba->over_temp_state = HBA_NORMAL_TEMP; 258 spin_unlock_irq(&phba->hbalock); 259 260 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 261 if (!pmb) { 262 phba->link_state = LPFC_HBA_ERROR; 263 return -ENOMEM; 264 } 265 mb = &pmb->mb; 266 267 /* Get login parameters for NID. */ 268 lpfc_read_sparam(phba, pmb, 0); 269 pmb->vport = vport; 270 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 271 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 272 "0448 Adapter failed init, mbxCmd x%x " 273 "READ_SPARM mbxStatus x%x\n", 274 mb->mbxCommand, mb->mbxStatus); 275 phba->link_state = LPFC_HBA_ERROR; 276 mp = (struct lpfc_dmabuf *) pmb->context1; 277 mempool_free( pmb, phba->mbox_mem_pool); 278 lpfc_mbuf_free(phba, mp->virt, mp->phys); 279 kfree(mp); 280 return -EIO; 281 } 282 283 mp = (struct lpfc_dmabuf *) pmb->context1; 284 285 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 286 lpfc_mbuf_free(phba, mp->virt, mp->phys); 287 kfree(mp); 288 pmb->context1 = NULL; 289 290 if (phba->cfg_soft_wwnn) 291 u64_to_wwn(phba->cfg_soft_wwnn, 292 vport->fc_sparam.nodeName.u.wwn); 293 if (phba->cfg_soft_wwpn) 294 u64_to_wwn(phba->cfg_soft_wwpn, 295 vport->fc_sparam.portName.u.wwn); 296 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 297 sizeof (struct lpfc_name)); 298 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 299 sizeof (struct lpfc_name)); 300 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 301 /* This should be consolidated into parse_vpd ? - mr */ 302 if (phba->SerialNumber[0] == 0) { 303 uint8_t *outptr; 304 305 outptr = &vport->fc_nodename.u.s.IEEE[0]; 306 for (i = 0; i < 12; i++) { 307 status = *outptr++; 308 j = ((status & 0xf0) >> 4); 309 if (j <= 9) 310 phba->SerialNumber[i] = 311 (char)((uint8_t) 0x30 + (uint8_t) j); 312 else 313 phba->SerialNumber[i] = 314 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 315 i++; 316 j = (status & 0xf); 317 if (j <= 9) 318 phba->SerialNumber[i] = 319 (char)((uint8_t) 0x30 + (uint8_t) j); 320 else 321 phba->SerialNumber[i] = 322 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 323 } 324 } 325 326 lpfc_read_config(phba, pmb); 327 pmb->vport = vport; 328 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 329 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 330 "0453 Adapter failed to init, mbxCmd x%x " 331 "READ_CONFIG, mbxStatus x%x\n", 332 mb->mbxCommand, mb->mbxStatus); 333 phba->link_state = LPFC_HBA_ERROR; 334 mempool_free( pmb, phba->mbox_mem_pool); 335 return -EIO; 336 } 337 338 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 339 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 340 phba->cfg_hba_queue_depth = 341 mb->un.varRdConfig.max_xri + 1; 342 343 phba->lmt = mb->un.varRdConfig.lmt; 344 345 /* Get the default values for Model Name and Description */ 346 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 347 348 if ((phba->cfg_link_speed > LINK_SPEED_10G) 349 || ((phba->cfg_link_speed == LINK_SPEED_1G) 350 && !(phba->lmt & LMT_1Gb)) 351 || ((phba->cfg_link_speed == LINK_SPEED_2G) 352 && !(phba->lmt & LMT_2Gb)) 353 || ((phba->cfg_link_speed == LINK_SPEED_4G) 354 && !(phba->lmt & LMT_4Gb)) 355 || ((phba->cfg_link_speed == LINK_SPEED_8G) 356 && !(phba->lmt & LMT_8Gb)) 357 || ((phba->cfg_link_speed == LINK_SPEED_10G) 358 && !(phba->lmt & LMT_10Gb))) { 359 /* Reset link speed to auto */ 360 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT, 361 "1302 Invalid speed for this board: " 362 "Reset link speed to auto: x%x\n", 363 phba->cfg_link_speed); 364 phba->cfg_link_speed = LINK_SPEED_AUTO; 365 } 366 367 phba->link_state = LPFC_LINK_DOWN; 368 369 /* Only process IOCBs on ELS ring till hba_state is READY */ 370 if (psli->ring[psli->extra_ring].cmdringaddr) 371 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 372 if (psli->ring[psli->fcp_ring].cmdringaddr) 373 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 374 if (psli->ring[psli->next_ring].cmdringaddr) 375 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 376 377 /* Post receive buffers for desired rings */ 378 if (phba->sli_rev != 3) 379 lpfc_post_rcv_buf(phba); 380 381 /* Enable appropriate host interrupts */ 382 spin_lock_irq(&phba->hbalock); 383 status = readl(phba->HCregaddr); 384 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 385 if (psli->num_rings > 0) 386 status |= HC_R0INT_ENA; 387 if (psli->num_rings > 1) 388 status |= HC_R1INT_ENA; 389 if (psli->num_rings > 2) 390 status |= HC_R2INT_ENA; 391 if (psli->num_rings > 3) 392 status |= HC_R3INT_ENA; 393 394 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 395 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 396 status &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 397 398 writel(status, phba->HCregaddr); 399 readl(phba->HCregaddr); /* flush */ 400 spin_unlock_irq(&phba->hbalock); 401 402 /* 403 * Setup the ring 0 (els) timeout handler 404 */ 405 timeout = phba->fc_ratov << 1; 406 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 407 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 408 phba->hb_outstanding = 0; 409 phba->last_completion_time = jiffies; 410 411 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed); 412 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 413 pmb->vport = vport; 414 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 415 lpfc_set_loopback_flag(phba); 416 if (rc != MBX_SUCCESS) { 417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 418 "0454 Adapter failed to init, mbxCmd x%x " 419 "INIT_LINK, mbxStatus x%x\n", 420 mb->mbxCommand, mb->mbxStatus); 421 422 /* Clear all interrupt enable conditions */ 423 writel(0, phba->HCregaddr); 424 readl(phba->HCregaddr); /* flush */ 425 /* Clear all pending interrupts */ 426 writel(0xffffffff, phba->HAregaddr); 427 readl(phba->HAregaddr); /* flush */ 428 429 phba->link_state = LPFC_HBA_ERROR; 430 if (rc != MBX_BUSY) 431 mempool_free(pmb, phba->mbox_mem_pool); 432 return -EIO; 433 } 434 /* MBOX buffer will be freed in mbox compl */ 435 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 436 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 437 pmb->mbox_cmpl = lpfc_config_async_cmpl; 438 pmb->vport = phba->pport; 439 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 440 441 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 442 lpfc_printf_log(phba, 443 KERN_ERR, 444 LOG_INIT, 445 "0456 Adapter failed to issue " 446 "ASYNCEVT_ENABLE mbox status x%x \n.", 447 rc); 448 mempool_free(pmb, phba->mbox_mem_pool); 449 } 450 return (0); 451 } 452 453 /************************************************************************/ 454 /* */ 455 /* lpfc_hba_down_prep */ 456 /* This routine will do LPFC uninitialization before the */ 457 /* HBA is reset when bringing down the SLI Layer. This will be */ 458 /* initialized as a SLI layer callback routine. */ 459 /* This routine returns 0 on success. Any other return value */ 460 /* indicates an error. */ 461 /* */ 462 /************************************************************************/ 463 int 464 lpfc_hba_down_prep(struct lpfc_hba *phba) 465 { 466 struct lpfc_vport **vports; 467 int i; 468 /* Disable interrupts */ 469 writel(0, phba->HCregaddr); 470 readl(phba->HCregaddr); /* flush */ 471 472 if (phba->pport->load_flag & FC_UNLOADING) 473 lpfc_cleanup_discovery_resources(phba->pport); 474 else { 475 vports = lpfc_create_vport_work_array(phba); 476 if (vports != NULL) 477 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) 478 lpfc_cleanup_discovery_resources(vports[i]); 479 lpfc_destroy_vport_work_array(phba, vports); 480 } 481 return 0; 482 } 483 484 /************************************************************************/ 485 /* */ 486 /* lpfc_hba_down_post */ 487 /* This routine will do uninitialization after the HBA is reset */ 488 /* when bringing down the SLI Layer. */ 489 /* This routine returns 0 on success. Any other return value */ 490 /* indicates an error. */ 491 /* */ 492 /************************************************************************/ 493 int 494 lpfc_hba_down_post(struct lpfc_hba *phba) 495 { 496 struct lpfc_sli *psli = &phba->sli; 497 struct lpfc_sli_ring *pring; 498 struct lpfc_dmabuf *mp, *next_mp; 499 struct lpfc_iocbq *iocb; 500 IOCB_t *cmd = NULL; 501 LIST_HEAD(completions); 502 int i; 503 504 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 505 lpfc_sli_hbqbuf_free_all(phba); 506 else { 507 /* Cleanup preposted buffers on the ELS ring */ 508 pring = &psli->ring[LPFC_ELS_RING]; 509 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 510 list_del(&mp->list); 511 pring->postbufq_cnt--; 512 lpfc_mbuf_free(phba, mp->virt, mp->phys); 513 kfree(mp); 514 } 515 } 516 517 spin_lock_irq(&phba->hbalock); 518 for (i = 0; i < psli->num_rings; i++) { 519 pring = &psli->ring[i]; 520 521 /* At this point in time the HBA is either reset or DOA. Either 522 * way, nothing should be on txcmplq as it will NEVER complete. 523 */ 524 list_splice_init(&pring->txcmplq, &completions); 525 pring->txcmplq_cnt = 0; 526 spin_unlock_irq(&phba->hbalock); 527 528 while (!list_empty(&completions)) { 529 iocb = list_get_first(&completions, struct lpfc_iocbq, 530 list); 531 cmd = &iocb->iocb; 532 list_del_init(&iocb->list); 533 534 if (!iocb->iocb_cmpl) 535 lpfc_sli_release_iocbq(phba, iocb); 536 else { 537 cmd->ulpStatus = IOSTAT_LOCAL_REJECT; 538 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; 539 (iocb->iocb_cmpl) (phba, iocb, iocb); 540 } 541 } 542 543 lpfc_sli_abort_iocb_ring(phba, pring); 544 spin_lock_irq(&phba->hbalock); 545 } 546 spin_unlock_irq(&phba->hbalock); 547 548 return 0; 549 } 550 551 /* HBA heart beat timeout handler */ 552 static void 553 lpfc_hb_timeout(unsigned long ptr) 554 { 555 struct lpfc_hba *phba; 556 uint32_t tmo_posted; 557 unsigned long iflag; 558 559 phba = (struct lpfc_hba *)ptr; 560 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 561 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 562 if (!tmo_posted) 563 phba->pport->work_port_events |= WORKER_HB_TMO; 564 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 565 566 if (!tmo_posted) 567 lpfc_worker_wake_up(phba); 568 return; 569 } 570 571 static void 572 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 573 { 574 unsigned long drvr_flag; 575 576 spin_lock_irqsave(&phba->hbalock, drvr_flag); 577 phba->hb_outstanding = 0; 578 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 579 580 mempool_free(pmboxq, phba->mbox_mem_pool); 581 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 582 !(phba->link_state == LPFC_HBA_ERROR) && 583 !(phba->pport->load_flag & FC_UNLOADING)) 584 mod_timer(&phba->hb_tmofunc, 585 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 586 return; 587 } 588 589 void 590 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 591 { 592 LPFC_MBOXQ_t *pmboxq; 593 struct lpfc_dmabuf *buf_ptr; 594 int retval; 595 struct lpfc_sli *psli = &phba->sli; 596 LIST_HEAD(completions); 597 598 if ((phba->link_state == LPFC_HBA_ERROR) || 599 (phba->pport->load_flag & FC_UNLOADING) || 600 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 601 return; 602 603 spin_lock_irq(&phba->pport->work_port_lock); 604 /* If the timer is already canceled do nothing */ 605 if (!(phba->pport->work_port_events & WORKER_HB_TMO)) { 606 spin_unlock_irq(&phba->pport->work_port_lock); 607 return; 608 } 609 610 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 611 jiffies)) { 612 spin_unlock_irq(&phba->pport->work_port_lock); 613 if (!phba->hb_outstanding) 614 mod_timer(&phba->hb_tmofunc, 615 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 616 else 617 mod_timer(&phba->hb_tmofunc, 618 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 619 return; 620 } 621 spin_unlock_irq(&phba->pport->work_port_lock); 622 623 if (phba->elsbuf_cnt && 624 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 625 spin_lock_irq(&phba->hbalock); 626 list_splice_init(&phba->elsbuf, &completions); 627 phba->elsbuf_cnt = 0; 628 phba->elsbuf_prev_cnt = 0; 629 spin_unlock_irq(&phba->hbalock); 630 631 while (!list_empty(&completions)) { 632 list_remove_head(&completions, buf_ptr, 633 struct lpfc_dmabuf, list); 634 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 635 kfree(buf_ptr); 636 } 637 } 638 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 639 640 /* If there is no heart beat outstanding, issue a heartbeat command */ 641 if (phba->cfg_enable_hba_heartbeat) { 642 if (!phba->hb_outstanding) { 643 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 644 if (!pmboxq) { 645 mod_timer(&phba->hb_tmofunc, 646 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 647 return; 648 } 649 650 lpfc_heart_beat(phba, pmboxq); 651 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 652 pmboxq->vport = phba->pport; 653 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); 654 655 if (retval != MBX_BUSY && retval != MBX_SUCCESS) { 656 mempool_free(pmboxq, phba->mbox_mem_pool); 657 mod_timer(&phba->hb_tmofunc, 658 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 659 return; 660 } 661 mod_timer(&phba->hb_tmofunc, 662 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 663 phba->hb_outstanding = 1; 664 return; 665 } else { 666 /* 667 * If heart beat timeout called with hb_outstanding set 668 * we need to take the HBA offline. 669 */ 670 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 671 "0459 Adapter heartbeat failure, " 672 "taking this port offline.\n"); 673 674 spin_lock_irq(&phba->hbalock); 675 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 676 spin_unlock_irq(&phba->hbalock); 677 678 lpfc_offline_prep(phba); 679 lpfc_offline(phba); 680 lpfc_unblock_mgmt_io(phba); 681 phba->link_state = LPFC_HBA_ERROR; 682 lpfc_hba_down_post(phba); 683 } 684 } 685 } 686 687 static void 688 lpfc_offline_eratt(struct lpfc_hba *phba) 689 { 690 struct lpfc_sli *psli = &phba->sli; 691 692 spin_lock_irq(&phba->hbalock); 693 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 694 spin_unlock_irq(&phba->hbalock); 695 lpfc_offline_prep(phba); 696 697 lpfc_offline(phba); 698 lpfc_reset_barrier(phba); 699 lpfc_sli_brdreset(phba); 700 lpfc_hba_down_post(phba); 701 lpfc_sli_brdready(phba, HS_MBRDY); 702 lpfc_unblock_mgmt_io(phba); 703 phba->link_state = LPFC_HBA_ERROR; 704 return; 705 } 706 707 /************************************************************************/ 708 /* */ 709 /* lpfc_handle_eratt */ 710 /* This routine will handle processing a Host Attention */ 711 /* Error Status event. This will be initialized */ 712 /* as a SLI layer callback routine. */ 713 /* */ 714 /************************************************************************/ 715 void 716 lpfc_handle_eratt(struct lpfc_hba *phba) 717 { 718 struct lpfc_vport *vport = phba->pport; 719 struct lpfc_sli *psli = &phba->sli; 720 struct lpfc_sli_ring *pring; 721 uint32_t event_data; 722 unsigned long temperature; 723 struct temp_event temp_event_data; 724 struct Scsi_Host *shost; 725 726 /* If the pci channel is offline, ignore possible errors, 727 * since we cannot communicate with the pci card anyway. */ 728 if (pci_channel_offline(phba->pcidev)) 729 return; 730 /* If resets are disabled then leave the HBA alone and return */ 731 if (!phba->cfg_enable_hba_reset) 732 return; 733 734 if (phba->work_hs & HS_FFER6) { 735 /* Re-establishing Link */ 736 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 737 "1301 Re-establishing Link " 738 "Data: x%x x%x x%x\n", 739 phba->work_hs, 740 phba->work_status[0], phba->work_status[1]); 741 742 spin_lock_irq(&phba->hbalock); 743 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 744 spin_unlock_irq(&phba->hbalock); 745 746 /* 747 * Firmware stops when it triggled erratt with HS_FFER6. 748 * That could cause the I/Os dropped by the firmware. 749 * Error iocb (I/O) on txcmplq and let the SCSI layer 750 * retry it after re-establishing link. 751 */ 752 pring = &psli->ring[psli->fcp_ring]; 753 lpfc_sli_abort_iocb_ring(phba, pring); 754 755 /* 756 * There was a firmware error. Take the hba offline and then 757 * attempt to restart it. 758 */ 759 lpfc_offline_prep(phba); 760 lpfc_offline(phba); 761 lpfc_sli_brdrestart(phba); 762 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 763 lpfc_unblock_mgmt_io(phba); 764 return; 765 } 766 lpfc_unblock_mgmt_io(phba); 767 } else if (phba->work_hs & HS_CRIT_TEMP) { 768 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 769 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 770 temp_event_data.event_code = LPFC_CRIT_TEMP; 771 temp_event_data.data = (uint32_t)temperature; 772 773 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 774 "0459 Adapter maximum temperature exceeded " 775 "(%ld), taking this port offline " 776 "Data: x%x x%x x%x\n", 777 temperature, phba->work_hs, 778 phba->work_status[0], phba->work_status[1]); 779 780 shost = lpfc_shost_from_vport(phba->pport); 781 fc_host_post_vendor_event(shost, fc_get_event_number(), 782 sizeof(temp_event_data), 783 (char *) &temp_event_data, 784 SCSI_NL_VID_TYPE_PCI 785 | PCI_VENDOR_ID_EMULEX); 786 787 spin_lock_irq(&phba->hbalock); 788 phba->over_temp_state = HBA_OVER_TEMP; 789 spin_unlock_irq(&phba->hbalock); 790 lpfc_offline_eratt(phba); 791 792 } else { 793 /* The if clause above forces this code path when the status 794 * failure is a value other than FFER6. Do not call the offline 795 * twice. This is the adapter hardware error path. 796 */ 797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 798 "0457 Adapter Hardware Error " 799 "Data: x%x x%x x%x\n", 800 phba->work_hs, 801 phba->work_status[0], phba->work_status[1]); 802 803 event_data = FC_REG_DUMP_EVENT; 804 shost = lpfc_shost_from_vport(vport); 805 fc_host_post_vendor_event(shost, fc_get_event_number(), 806 sizeof(event_data), (char *) &event_data, 807 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 808 809 lpfc_offline_eratt(phba); 810 } 811 } 812 813 /************************************************************************/ 814 /* */ 815 /* lpfc_handle_latt */ 816 /* This routine will handle processing a Host Attention */ 817 /* Link Status event. This will be initialized */ 818 /* as a SLI layer callback routine. */ 819 /* */ 820 /************************************************************************/ 821 void 822 lpfc_handle_latt(struct lpfc_hba *phba) 823 { 824 struct lpfc_vport *vport = phba->pport; 825 struct lpfc_sli *psli = &phba->sli; 826 LPFC_MBOXQ_t *pmb; 827 volatile uint32_t control; 828 struct lpfc_dmabuf *mp; 829 int rc = 0; 830 831 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 832 if (!pmb) { 833 rc = 1; 834 goto lpfc_handle_latt_err_exit; 835 } 836 837 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 838 if (!mp) { 839 rc = 2; 840 goto lpfc_handle_latt_free_pmb; 841 } 842 843 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 844 if (!mp->virt) { 845 rc = 3; 846 goto lpfc_handle_latt_free_mp; 847 } 848 849 /* Cleanup any outstanding ELS commands */ 850 lpfc_els_flush_all_cmd(phba); 851 852 psli->slistat.link_event++; 853 lpfc_read_la(phba, pmb, mp); 854 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 855 pmb->vport = vport; 856 /* Block ELS IOCBs until we have processed this mbox command */ 857 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 858 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 859 if (rc == MBX_NOT_FINISHED) { 860 rc = 4; 861 goto lpfc_handle_latt_free_mbuf; 862 } 863 864 /* Clear Link Attention in HA REG */ 865 spin_lock_irq(&phba->hbalock); 866 writel(HA_LATT, phba->HAregaddr); 867 readl(phba->HAregaddr); /* flush */ 868 spin_unlock_irq(&phba->hbalock); 869 870 return; 871 872 lpfc_handle_latt_free_mbuf: 873 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 874 lpfc_mbuf_free(phba, mp->virt, mp->phys); 875 lpfc_handle_latt_free_mp: 876 kfree(mp); 877 lpfc_handle_latt_free_pmb: 878 mempool_free(pmb, phba->mbox_mem_pool); 879 lpfc_handle_latt_err_exit: 880 /* Enable Link attention interrupts */ 881 spin_lock_irq(&phba->hbalock); 882 psli->sli_flag |= LPFC_PROCESS_LA; 883 control = readl(phba->HCregaddr); 884 control |= HC_LAINT_ENA; 885 writel(control, phba->HCregaddr); 886 readl(phba->HCregaddr); /* flush */ 887 888 /* Clear Link Attention in HA REG */ 889 writel(HA_LATT, phba->HAregaddr); 890 readl(phba->HAregaddr); /* flush */ 891 spin_unlock_irq(&phba->hbalock); 892 lpfc_linkdown(phba); 893 phba->link_state = LPFC_HBA_ERROR; 894 895 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 896 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 897 898 return; 899 } 900 901 /************************************************************************/ 902 /* */ 903 /* lpfc_parse_vpd */ 904 /* This routine will parse the VPD data */ 905 /* */ 906 /************************************************************************/ 907 static int 908 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 909 { 910 uint8_t lenlo, lenhi; 911 int Length; 912 int i, j; 913 int finished = 0; 914 int index = 0; 915 916 if (!vpd) 917 return 0; 918 919 /* Vital Product */ 920 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 921 "0455 Vital Product Data: x%x x%x x%x x%x\n", 922 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 923 (uint32_t) vpd[3]); 924 while (!finished && (index < (len - 4))) { 925 switch (vpd[index]) { 926 case 0x82: 927 case 0x91: 928 index += 1; 929 lenlo = vpd[index]; 930 index += 1; 931 lenhi = vpd[index]; 932 index += 1; 933 i = ((((unsigned short)lenhi) << 8) + lenlo); 934 index += i; 935 break; 936 case 0x90: 937 index += 1; 938 lenlo = vpd[index]; 939 index += 1; 940 lenhi = vpd[index]; 941 index += 1; 942 Length = ((((unsigned short)lenhi) << 8) + lenlo); 943 if (Length > len - index) 944 Length = len - index; 945 while (Length > 0) { 946 /* Look for Serial Number */ 947 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 948 index += 2; 949 i = vpd[index]; 950 index += 1; 951 j = 0; 952 Length -= (3+i); 953 while(i--) { 954 phba->SerialNumber[j++] = vpd[index++]; 955 if (j == 31) 956 break; 957 } 958 phba->SerialNumber[j] = 0; 959 continue; 960 } 961 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 962 phba->vpd_flag |= VPD_MODEL_DESC; 963 index += 2; 964 i = vpd[index]; 965 index += 1; 966 j = 0; 967 Length -= (3+i); 968 while(i--) { 969 phba->ModelDesc[j++] = vpd[index++]; 970 if (j == 255) 971 break; 972 } 973 phba->ModelDesc[j] = 0; 974 continue; 975 } 976 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 977 phba->vpd_flag |= VPD_MODEL_NAME; 978 index += 2; 979 i = vpd[index]; 980 index += 1; 981 j = 0; 982 Length -= (3+i); 983 while(i--) { 984 phba->ModelName[j++] = vpd[index++]; 985 if (j == 79) 986 break; 987 } 988 phba->ModelName[j] = 0; 989 continue; 990 } 991 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 992 phba->vpd_flag |= VPD_PROGRAM_TYPE; 993 index += 2; 994 i = vpd[index]; 995 index += 1; 996 j = 0; 997 Length -= (3+i); 998 while(i--) { 999 phba->ProgramType[j++] = vpd[index++]; 1000 if (j == 255) 1001 break; 1002 } 1003 phba->ProgramType[j] = 0; 1004 continue; 1005 } 1006 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1007 phba->vpd_flag |= VPD_PORT; 1008 index += 2; 1009 i = vpd[index]; 1010 index += 1; 1011 j = 0; 1012 Length -= (3+i); 1013 while(i--) { 1014 phba->Port[j++] = vpd[index++]; 1015 if (j == 19) 1016 break; 1017 } 1018 phba->Port[j] = 0; 1019 continue; 1020 } 1021 else { 1022 index += 2; 1023 i = vpd[index]; 1024 index += 1; 1025 index += i; 1026 Length -= (3 + i); 1027 } 1028 } 1029 finished = 0; 1030 break; 1031 case 0x78: 1032 finished = 1; 1033 break; 1034 default: 1035 index ++; 1036 break; 1037 } 1038 } 1039 1040 return(1); 1041 } 1042 1043 static void 1044 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1045 { 1046 lpfc_vpd_t *vp; 1047 uint16_t dev_id = phba->pcidev->device; 1048 int max_speed; 1049 struct { 1050 char * name; 1051 int max_speed; 1052 char * bus; 1053 } m = {"<Unknown>", 0, ""}; 1054 1055 if (mdp && mdp[0] != '\0' 1056 && descp && descp[0] != '\0') 1057 return; 1058 1059 if (phba->lmt & LMT_10Gb) 1060 max_speed = 10; 1061 else if (phba->lmt & LMT_8Gb) 1062 max_speed = 8; 1063 else if (phba->lmt & LMT_4Gb) 1064 max_speed = 4; 1065 else if (phba->lmt & LMT_2Gb) 1066 max_speed = 2; 1067 else 1068 max_speed = 1; 1069 1070 vp = &phba->vpd; 1071 1072 switch (dev_id) { 1073 case PCI_DEVICE_ID_FIREFLY: 1074 m = (typeof(m)){"LP6000", max_speed, "PCI"}; 1075 break; 1076 case PCI_DEVICE_ID_SUPERFLY: 1077 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1078 m = (typeof(m)){"LP7000", max_speed, "PCI"}; 1079 else 1080 m = (typeof(m)){"LP7000E", max_speed, "PCI"}; 1081 break; 1082 case PCI_DEVICE_ID_DRAGONFLY: 1083 m = (typeof(m)){"LP8000", max_speed, "PCI"}; 1084 break; 1085 case PCI_DEVICE_ID_CENTAUR: 1086 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1087 m = (typeof(m)){"LP9002", max_speed, "PCI"}; 1088 else 1089 m = (typeof(m)){"LP9000", max_speed, "PCI"}; 1090 break; 1091 case PCI_DEVICE_ID_RFLY: 1092 m = (typeof(m)){"LP952", max_speed, "PCI"}; 1093 break; 1094 case PCI_DEVICE_ID_PEGASUS: 1095 m = (typeof(m)){"LP9802", max_speed, "PCI-X"}; 1096 break; 1097 case PCI_DEVICE_ID_THOR: 1098 m = (typeof(m)){"LP10000", max_speed, "PCI-X"}; 1099 break; 1100 case PCI_DEVICE_ID_VIPER: 1101 m = (typeof(m)){"LPX1000", max_speed, "PCI-X"}; 1102 break; 1103 case PCI_DEVICE_ID_PFLY: 1104 m = (typeof(m)){"LP982", max_speed, "PCI-X"}; 1105 break; 1106 case PCI_DEVICE_ID_TFLY: 1107 m = (typeof(m)){"LP1050", max_speed, "PCI-X"}; 1108 break; 1109 case PCI_DEVICE_ID_HELIOS: 1110 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"}; 1111 break; 1112 case PCI_DEVICE_ID_HELIOS_SCSP: 1113 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"}; 1114 break; 1115 case PCI_DEVICE_ID_HELIOS_DCSP: 1116 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"}; 1117 break; 1118 case PCI_DEVICE_ID_NEPTUNE: 1119 m = (typeof(m)){"LPe1000", max_speed, "PCIe"}; 1120 break; 1121 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1122 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"}; 1123 break; 1124 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1125 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"}; 1126 break; 1127 case PCI_DEVICE_ID_BMID: 1128 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"}; 1129 break; 1130 case PCI_DEVICE_ID_BSMB: 1131 m = (typeof(m)){"LP111", max_speed, "PCI-X2"}; 1132 break; 1133 case PCI_DEVICE_ID_ZEPHYR: 1134 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1135 break; 1136 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1137 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1138 break; 1139 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1140 m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"}; 1141 break; 1142 case PCI_DEVICE_ID_ZMID: 1143 m = (typeof(m)){"LPe1150", max_speed, "PCIe"}; 1144 break; 1145 case PCI_DEVICE_ID_ZSMB: 1146 m = (typeof(m)){"LPe111", max_speed, "PCIe"}; 1147 break; 1148 case PCI_DEVICE_ID_LP101: 1149 m = (typeof(m)){"LP101", max_speed, "PCI-X"}; 1150 break; 1151 case PCI_DEVICE_ID_LP10000S: 1152 m = (typeof(m)){"LP10000-S", max_speed, "PCI"}; 1153 break; 1154 case PCI_DEVICE_ID_LP11000S: 1155 m = (typeof(m)){"LP11000-S", max_speed, 1156 "PCI-X2"}; 1157 break; 1158 case PCI_DEVICE_ID_LPE11000S: 1159 m = (typeof(m)){"LPe11000-S", max_speed, 1160 "PCIe"}; 1161 break; 1162 case PCI_DEVICE_ID_SAT: 1163 m = (typeof(m)){"LPe12000", max_speed, "PCIe"}; 1164 break; 1165 case PCI_DEVICE_ID_SAT_MID: 1166 m = (typeof(m)){"LPe1250", max_speed, "PCIe"}; 1167 break; 1168 case PCI_DEVICE_ID_SAT_SMB: 1169 m = (typeof(m)){"LPe121", max_speed, "PCIe"}; 1170 break; 1171 case PCI_DEVICE_ID_SAT_DCSP: 1172 m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"}; 1173 break; 1174 case PCI_DEVICE_ID_SAT_SCSP: 1175 m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"}; 1176 break; 1177 case PCI_DEVICE_ID_SAT_S: 1178 m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"}; 1179 break; 1180 default: 1181 m = (typeof(m)){ NULL }; 1182 break; 1183 } 1184 1185 if (mdp && mdp[0] == '\0') 1186 snprintf(mdp, 79,"%s", m.name); 1187 if (descp && descp[0] == '\0') 1188 snprintf(descp, 255, 1189 "Emulex %s %dGb %s Fibre Channel Adapter", 1190 m.name, m.max_speed, m.bus); 1191 } 1192 1193 /**************************************************/ 1194 /* lpfc_post_buffer */ 1195 /* */ 1196 /* This routine will post count buffers to the */ 1197 /* ring with the QUE_RING_BUF_CN command. This */ 1198 /* allows 3 buffers / command to be posted. */ 1199 /* Returns the number of buffers NOT posted. */ 1200 /**************************************************/ 1201 int 1202 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 1203 { 1204 IOCB_t *icmd; 1205 struct lpfc_iocbq *iocb; 1206 struct lpfc_dmabuf *mp1, *mp2; 1207 1208 cnt += pring->missbufcnt; 1209 1210 /* While there are buffers to post */ 1211 while (cnt > 0) { 1212 /* Allocate buffer for command iocb */ 1213 iocb = lpfc_sli_get_iocbq(phba); 1214 if (iocb == NULL) { 1215 pring->missbufcnt = cnt; 1216 return cnt; 1217 } 1218 icmd = &iocb->iocb; 1219 1220 /* 2 buffers can be posted per command */ 1221 /* Allocate buffer to post */ 1222 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1223 if (mp1) 1224 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 1225 if (!mp1 || !mp1->virt) { 1226 kfree(mp1); 1227 lpfc_sli_release_iocbq(phba, iocb); 1228 pring->missbufcnt = cnt; 1229 return cnt; 1230 } 1231 1232 INIT_LIST_HEAD(&mp1->list); 1233 /* Allocate buffer to post */ 1234 if (cnt > 1) { 1235 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1236 if (mp2) 1237 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1238 &mp2->phys); 1239 if (!mp2 || !mp2->virt) { 1240 kfree(mp2); 1241 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1242 kfree(mp1); 1243 lpfc_sli_release_iocbq(phba, iocb); 1244 pring->missbufcnt = cnt; 1245 return cnt; 1246 } 1247 1248 INIT_LIST_HEAD(&mp2->list); 1249 } else { 1250 mp2 = NULL; 1251 } 1252 1253 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1254 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1255 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1256 icmd->ulpBdeCount = 1; 1257 cnt--; 1258 if (mp2) { 1259 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1260 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1261 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1262 cnt--; 1263 icmd->ulpBdeCount = 2; 1264 } 1265 1266 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1267 icmd->ulpLe = 1; 1268 1269 if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) { 1270 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1271 kfree(mp1); 1272 cnt++; 1273 if (mp2) { 1274 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1275 kfree(mp2); 1276 cnt++; 1277 } 1278 lpfc_sli_release_iocbq(phba, iocb); 1279 pring->missbufcnt = cnt; 1280 return cnt; 1281 } 1282 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1283 if (mp2) 1284 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1285 } 1286 pring->missbufcnt = 0; 1287 return 0; 1288 } 1289 1290 /************************************************************************/ 1291 /* */ 1292 /* lpfc_post_rcv_buf */ 1293 /* This routine post initial rcv buffers to the configured rings */ 1294 /* */ 1295 /************************************************************************/ 1296 static int 1297 lpfc_post_rcv_buf(struct lpfc_hba *phba) 1298 { 1299 struct lpfc_sli *psli = &phba->sli; 1300 1301 /* Ring 0, ELS / CT buffers */ 1302 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 1303 /* Ring 2 - FCP no buffers needed */ 1304 1305 return 0; 1306 } 1307 1308 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 1309 1310 /************************************************************************/ 1311 /* */ 1312 /* lpfc_sha_init */ 1313 /* */ 1314 /************************************************************************/ 1315 static void 1316 lpfc_sha_init(uint32_t * HashResultPointer) 1317 { 1318 HashResultPointer[0] = 0x67452301; 1319 HashResultPointer[1] = 0xEFCDAB89; 1320 HashResultPointer[2] = 0x98BADCFE; 1321 HashResultPointer[3] = 0x10325476; 1322 HashResultPointer[4] = 0xC3D2E1F0; 1323 } 1324 1325 /************************************************************************/ 1326 /* */ 1327 /* lpfc_sha_iterate */ 1328 /* */ 1329 /************************************************************************/ 1330 static void 1331 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 1332 { 1333 int t; 1334 uint32_t TEMP; 1335 uint32_t A, B, C, D, E; 1336 t = 16; 1337 do { 1338 HashWorkingPointer[t] = 1339 S(1, 1340 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 1341 8] ^ 1342 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 1343 } while (++t <= 79); 1344 t = 0; 1345 A = HashResultPointer[0]; 1346 B = HashResultPointer[1]; 1347 C = HashResultPointer[2]; 1348 D = HashResultPointer[3]; 1349 E = HashResultPointer[4]; 1350 1351 do { 1352 if (t < 20) { 1353 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 1354 } else if (t < 40) { 1355 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 1356 } else if (t < 60) { 1357 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 1358 } else { 1359 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 1360 } 1361 TEMP += S(5, A) + E + HashWorkingPointer[t]; 1362 E = D; 1363 D = C; 1364 C = S(30, B); 1365 B = A; 1366 A = TEMP; 1367 } while (++t <= 79); 1368 1369 HashResultPointer[0] += A; 1370 HashResultPointer[1] += B; 1371 HashResultPointer[2] += C; 1372 HashResultPointer[3] += D; 1373 HashResultPointer[4] += E; 1374 1375 } 1376 1377 /************************************************************************/ 1378 /* */ 1379 /* lpfc_challenge_key */ 1380 /* */ 1381 /************************************************************************/ 1382 static void 1383 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 1384 { 1385 *HashWorking = (*RandomChallenge ^ *HashWorking); 1386 } 1387 1388 /************************************************************************/ 1389 /* */ 1390 /* lpfc_hba_init */ 1391 /* */ 1392 /************************************************************************/ 1393 void 1394 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 1395 { 1396 int t; 1397 uint32_t *HashWorking; 1398 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 1399 1400 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 1401 if (!HashWorking) 1402 return; 1403 1404 HashWorking[0] = HashWorking[78] = *pwwnn++; 1405 HashWorking[1] = HashWorking[79] = *pwwnn; 1406 1407 for (t = 0; t < 7; t++) 1408 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 1409 1410 lpfc_sha_init(hbainit); 1411 lpfc_sha_iterate(hbainit, HashWorking); 1412 kfree(HashWorking); 1413 } 1414 1415 void 1416 lpfc_cleanup(struct lpfc_vport *vport) 1417 { 1418 struct lpfc_hba *phba = vport->phba; 1419 struct lpfc_nodelist *ndlp, *next_ndlp; 1420 int i = 0; 1421 1422 if (phba->link_state > LPFC_LINK_DOWN) 1423 lpfc_port_link_failure(vport); 1424 1425 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 1426 if (!NLP_CHK_NODE_ACT(ndlp)) { 1427 ndlp = lpfc_enable_node(vport, ndlp, 1428 NLP_STE_UNUSED_NODE); 1429 if (!ndlp) 1430 continue; 1431 spin_lock_irq(&phba->ndlp_lock); 1432 NLP_SET_FREE_REQ(ndlp); 1433 spin_unlock_irq(&phba->ndlp_lock); 1434 /* Trigger the release of the ndlp memory */ 1435 lpfc_nlp_put(ndlp); 1436 continue; 1437 } 1438 spin_lock_irq(&phba->ndlp_lock); 1439 if (NLP_CHK_FREE_REQ(ndlp)) { 1440 /* The ndlp should not be in memory free mode already */ 1441 spin_unlock_irq(&phba->ndlp_lock); 1442 continue; 1443 } else 1444 /* Indicate request for freeing ndlp memory */ 1445 NLP_SET_FREE_REQ(ndlp); 1446 spin_unlock_irq(&phba->ndlp_lock); 1447 1448 if (vport->port_type != LPFC_PHYSICAL_PORT && 1449 ndlp->nlp_DID == Fabric_DID) { 1450 /* Just free up ndlp with Fabric_DID for vports */ 1451 lpfc_nlp_put(ndlp); 1452 continue; 1453 } 1454 1455 if (ndlp->nlp_type & NLP_FABRIC) 1456 lpfc_disc_state_machine(vport, ndlp, NULL, 1457 NLP_EVT_DEVICE_RECOVERY); 1458 1459 lpfc_disc_state_machine(vport, ndlp, NULL, 1460 NLP_EVT_DEVICE_RM); 1461 1462 /* nlp_type zero is not defined, nlp_flag zero also not defined, 1463 * nlp_state is unused, this happens when 1464 * an initiator has logged 1465 * into us so cleanup this ndlp. 1466 */ 1467 if ((ndlp->nlp_type == 0) && (ndlp->nlp_flag == 0) && 1468 (ndlp->nlp_state == 0)) 1469 lpfc_nlp_put(ndlp); 1470 } 1471 1472 /* At this point, ALL ndlp's should be gone 1473 * because of the previous NLP_EVT_DEVICE_RM. 1474 * Lets wait for this to happen, if needed. 1475 */ 1476 while (!list_empty(&vport->fc_nodes)) { 1477 1478 if (i++ > 3000) { 1479 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1480 "0233 Nodelist not empty\n"); 1481 list_for_each_entry_safe(ndlp, next_ndlp, 1482 &vport->fc_nodes, nlp_listp) { 1483 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 1484 LOG_NODE, 1485 "0282: did:x%x ndlp:x%p " 1486 "usgmap:x%x refcnt:%d\n", 1487 ndlp->nlp_DID, (void *)ndlp, 1488 ndlp->nlp_usg_map, 1489 atomic_read( 1490 &ndlp->kref.refcount)); 1491 } 1492 break; 1493 } 1494 1495 /* Wait for any activity on ndlps to settle */ 1496 msleep(10); 1497 } 1498 return; 1499 } 1500 1501 void 1502 lpfc_stop_vport_timers(struct lpfc_vport *vport) 1503 { 1504 del_timer_sync(&vport->els_tmofunc); 1505 del_timer_sync(&vport->fc_fdmitmo); 1506 lpfc_can_disctmo(vport); 1507 return; 1508 } 1509 1510 static void 1511 lpfc_stop_phba_timers(struct lpfc_hba *phba) 1512 { 1513 del_timer_sync(&phba->fcp_poll_timer); 1514 lpfc_stop_vport_timers(phba->pport); 1515 del_timer_sync(&phba->sli.mbox_tmo); 1516 del_timer_sync(&phba->fabric_block_timer); 1517 phba->hb_outstanding = 0; 1518 del_timer_sync(&phba->hb_tmofunc); 1519 return; 1520 } 1521 1522 static void 1523 lpfc_block_mgmt_io(struct lpfc_hba * phba) 1524 { 1525 unsigned long iflag; 1526 1527 spin_lock_irqsave(&phba->hbalock, iflag); 1528 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 1529 spin_unlock_irqrestore(&phba->hbalock, iflag); 1530 } 1531 1532 int 1533 lpfc_online(struct lpfc_hba *phba) 1534 { 1535 struct lpfc_vport *vport = phba->pport; 1536 struct lpfc_vport **vports; 1537 int i; 1538 1539 if (!phba) 1540 return 0; 1541 1542 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 1543 return 0; 1544 1545 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1546 "0458 Bring Adapter online\n"); 1547 1548 lpfc_block_mgmt_io(phba); 1549 1550 if (!lpfc_sli_queue_setup(phba)) { 1551 lpfc_unblock_mgmt_io(phba); 1552 return 1; 1553 } 1554 1555 if (lpfc_sli_hba_setup(phba)) { /* Initialize the HBA */ 1556 lpfc_unblock_mgmt_io(phba); 1557 return 1; 1558 } 1559 1560 vports = lpfc_create_vport_work_array(phba); 1561 if (vports != NULL) 1562 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { 1563 struct Scsi_Host *shost; 1564 shost = lpfc_shost_from_vport(vports[i]); 1565 spin_lock_irq(shost->host_lock); 1566 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 1567 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 1568 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 1569 spin_unlock_irq(shost->host_lock); 1570 } 1571 lpfc_destroy_vport_work_array(phba, vports); 1572 1573 lpfc_unblock_mgmt_io(phba); 1574 return 0; 1575 } 1576 1577 void 1578 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 1579 { 1580 unsigned long iflag; 1581 1582 spin_lock_irqsave(&phba->hbalock, iflag); 1583 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 1584 spin_unlock_irqrestore(&phba->hbalock, iflag); 1585 } 1586 1587 void 1588 lpfc_offline_prep(struct lpfc_hba * phba) 1589 { 1590 struct lpfc_vport *vport = phba->pport; 1591 struct lpfc_nodelist *ndlp, *next_ndlp; 1592 struct lpfc_vport **vports; 1593 int i; 1594 1595 if (vport->fc_flag & FC_OFFLINE_MODE) 1596 return; 1597 1598 lpfc_block_mgmt_io(phba); 1599 1600 lpfc_linkdown(phba); 1601 1602 /* Issue an unreg_login to all nodes on all vports */ 1603 vports = lpfc_create_vport_work_array(phba); 1604 if (vports != NULL) { 1605 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { 1606 struct Scsi_Host *shost; 1607 1608 if (vports[i]->load_flag & FC_UNLOADING) 1609 continue; 1610 shost = lpfc_shost_from_vport(vports[i]); 1611 list_for_each_entry_safe(ndlp, next_ndlp, 1612 &vports[i]->fc_nodes, 1613 nlp_listp) { 1614 if (!NLP_CHK_NODE_ACT(ndlp)) 1615 continue; 1616 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 1617 continue; 1618 if (ndlp->nlp_type & NLP_FABRIC) { 1619 lpfc_disc_state_machine(vports[i], ndlp, 1620 NULL, NLP_EVT_DEVICE_RECOVERY); 1621 lpfc_disc_state_machine(vports[i], ndlp, 1622 NULL, NLP_EVT_DEVICE_RM); 1623 } 1624 spin_lock_irq(shost->host_lock); 1625 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1626 spin_unlock_irq(shost->host_lock); 1627 lpfc_unreg_rpi(vports[i], ndlp); 1628 } 1629 } 1630 } 1631 lpfc_destroy_vport_work_array(phba, vports); 1632 1633 lpfc_sli_flush_mbox_queue(phba); 1634 } 1635 1636 void 1637 lpfc_offline(struct lpfc_hba *phba) 1638 { 1639 struct Scsi_Host *shost; 1640 struct lpfc_vport **vports; 1641 int i; 1642 1643 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 1644 return; 1645 1646 /* stop all timers associated with this hba */ 1647 lpfc_stop_phba_timers(phba); 1648 vports = lpfc_create_vport_work_array(phba); 1649 if (vports != NULL) 1650 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) 1651 lpfc_stop_vport_timers(vports[i]); 1652 lpfc_destroy_vport_work_array(phba, vports); 1653 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1654 "0460 Bring Adapter offline\n"); 1655 /* Bring down the SLI Layer and cleanup. The HBA is offline 1656 now. */ 1657 lpfc_sli_hba_down(phba); 1658 spin_lock_irq(&phba->hbalock); 1659 phba->work_ha = 0; 1660 spin_unlock_irq(&phba->hbalock); 1661 vports = lpfc_create_vport_work_array(phba); 1662 if (vports != NULL) 1663 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { 1664 shost = lpfc_shost_from_vport(vports[i]); 1665 spin_lock_irq(shost->host_lock); 1666 vports[i]->work_port_events = 0; 1667 vports[i]->fc_flag |= FC_OFFLINE_MODE; 1668 spin_unlock_irq(shost->host_lock); 1669 } 1670 lpfc_destroy_vport_work_array(phba, vports); 1671 } 1672 1673 /****************************************************************************** 1674 * Function name: lpfc_scsi_free 1675 * 1676 * Description: Called from lpfc_pci_remove_one free internal driver resources 1677 * 1678 ******************************************************************************/ 1679 static int 1680 lpfc_scsi_free(struct lpfc_hba *phba) 1681 { 1682 struct lpfc_scsi_buf *sb, *sb_next; 1683 struct lpfc_iocbq *io, *io_next; 1684 1685 spin_lock_irq(&phba->hbalock); 1686 /* Release all the lpfc_scsi_bufs maintained by this host. */ 1687 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 1688 list_del(&sb->list); 1689 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 1690 sb->dma_handle); 1691 kfree(sb); 1692 phba->total_scsi_bufs--; 1693 } 1694 1695 /* Release all the lpfc_iocbq entries maintained by this host. */ 1696 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 1697 list_del(&io->list); 1698 kfree(io); 1699 phba->total_iocbq_bufs--; 1700 } 1701 1702 spin_unlock_irq(&phba->hbalock); 1703 1704 return 0; 1705 } 1706 1707 struct lpfc_vport * 1708 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 1709 { 1710 struct lpfc_vport *vport; 1711 struct Scsi_Host *shost; 1712 int error = 0; 1713 1714 if (dev != &phba->pcidev->dev) 1715 shost = scsi_host_alloc(&lpfc_vport_template, 1716 sizeof(struct lpfc_vport)); 1717 else 1718 shost = scsi_host_alloc(&lpfc_template, 1719 sizeof(struct lpfc_vport)); 1720 if (!shost) 1721 goto out; 1722 1723 vport = (struct lpfc_vport *) shost->hostdata; 1724 vport->phba = phba; 1725 vport->load_flag |= FC_LOADING; 1726 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 1727 vport->fc_rscn_flush = 0; 1728 1729 lpfc_get_vport_cfgparam(vport); 1730 shost->unique_id = instance; 1731 shost->max_id = LPFC_MAX_TARGET; 1732 shost->max_lun = vport->cfg_max_luns; 1733 shost->this_id = -1; 1734 shost->max_cmd_len = 16; 1735 /* 1736 * Set initial can_queue value since 0 is no longer supported and 1737 * scsi_add_host will fail. This will be adjusted later based on the 1738 * max xri value determined in hba setup. 1739 */ 1740 shost->can_queue = phba->cfg_hba_queue_depth - 10; 1741 if (dev != &phba->pcidev->dev) { 1742 shost->transportt = lpfc_vport_transport_template; 1743 vport->port_type = LPFC_NPIV_PORT; 1744 } else { 1745 shost->transportt = lpfc_transport_template; 1746 vport->port_type = LPFC_PHYSICAL_PORT; 1747 } 1748 1749 /* Initialize all internally managed lists. */ 1750 INIT_LIST_HEAD(&vport->fc_nodes); 1751 spin_lock_init(&vport->work_port_lock); 1752 1753 init_timer(&vport->fc_disctmo); 1754 vport->fc_disctmo.function = lpfc_disc_timeout; 1755 vport->fc_disctmo.data = (unsigned long)vport; 1756 1757 init_timer(&vport->fc_fdmitmo); 1758 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 1759 vport->fc_fdmitmo.data = (unsigned long)vport; 1760 1761 init_timer(&vport->els_tmofunc); 1762 vport->els_tmofunc.function = lpfc_els_timeout; 1763 vport->els_tmofunc.data = (unsigned long)vport; 1764 1765 error = scsi_add_host(shost, dev); 1766 if (error) 1767 goto out_put_shost; 1768 1769 spin_lock_irq(&phba->hbalock); 1770 list_add_tail(&vport->listentry, &phba->port_list); 1771 spin_unlock_irq(&phba->hbalock); 1772 return vport; 1773 1774 out_put_shost: 1775 scsi_host_put(shost); 1776 out: 1777 return NULL; 1778 } 1779 1780 void 1781 destroy_port(struct lpfc_vport *vport) 1782 { 1783 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1784 struct lpfc_hba *phba = vport->phba; 1785 1786 kfree(vport->vname); 1787 1788 lpfc_debugfs_terminate(vport); 1789 fc_remove_host(shost); 1790 scsi_remove_host(shost); 1791 1792 spin_lock_irq(&phba->hbalock); 1793 list_del_init(&vport->listentry); 1794 spin_unlock_irq(&phba->hbalock); 1795 1796 lpfc_cleanup(vport); 1797 return; 1798 } 1799 1800 int 1801 lpfc_get_instance(void) 1802 { 1803 int instance = 0; 1804 1805 /* Assign an unused number */ 1806 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 1807 return -1; 1808 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 1809 return -1; 1810 return instance; 1811 } 1812 1813 /* 1814 * Note: there is no scan_start function as adapter initialization 1815 * will have asynchronously kicked off the link initialization. 1816 */ 1817 1818 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 1819 { 1820 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1821 struct lpfc_hba *phba = vport->phba; 1822 int stat = 0; 1823 1824 spin_lock_irq(shost->host_lock); 1825 1826 if (vport->load_flag & FC_UNLOADING) { 1827 stat = 1; 1828 goto finished; 1829 } 1830 if (time >= 30 * HZ) { 1831 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1832 "0461 Scanning longer than 30 " 1833 "seconds. Continuing initialization\n"); 1834 stat = 1; 1835 goto finished; 1836 } 1837 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 1838 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1839 "0465 Link down longer than 15 " 1840 "seconds. Continuing initialization\n"); 1841 stat = 1; 1842 goto finished; 1843 } 1844 1845 if (vport->port_state != LPFC_VPORT_READY) 1846 goto finished; 1847 if (vport->num_disc_nodes || vport->fc_prli_sent) 1848 goto finished; 1849 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 1850 goto finished; 1851 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 1852 goto finished; 1853 1854 stat = 1; 1855 1856 finished: 1857 spin_unlock_irq(shost->host_lock); 1858 return stat; 1859 } 1860 1861 void lpfc_host_attrib_init(struct Scsi_Host *shost) 1862 { 1863 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1864 struct lpfc_hba *phba = vport->phba; 1865 /* 1866 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 1867 */ 1868 1869 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 1870 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 1871 fc_host_supported_classes(shost) = FC_COS_CLASS3; 1872 1873 memset(fc_host_supported_fc4s(shost), 0, 1874 sizeof(fc_host_supported_fc4s(shost))); 1875 fc_host_supported_fc4s(shost)[2] = 1; 1876 fc_host_supported_fc4s(shost)[7] = 1; 1877 1878 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 1879 sizeof fc_host_symbolic_name(shost)); 1880 1881 fc_host_supported_speeds(shost) = 0; 1882 if (phba->lmt & LMT_10Gb) 1883 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 1884 if (phba->lmt & LMT_8Gb) 1885 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 1886 if (phba->lmt & LMT_4Gb) 1887 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 1888 if (phba->lmt & LMT_2Gb) 1889 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 1890 if (phba->lmt & LMT_1Gb) 1891 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 1892 1893 fc_host_maxframe_size(shost) = 1894 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 1895 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 1896 1897 /* This value is also unchanging */ 1898 memset(fc_host_active_fc4s(shost), 0, 1899 sizeof(fc_host_active_fc4s(shost))); 1900 fc_host_active_fc4s(shost)[2] = 1; 1901 fc_host_active_fc4s(shost)[7] = 1; 1902 1903 fc_host_max_npiv_vports(shost) = phba->max_vpi; 1904 spin_lock_irq(shost->host_lock); 1905 vport->load_flag &= ~FC_LOADING; 1906 spin_unlock_irq(shost->host_lock); 1907 } 1908 1909 static int 1910 lpfc_enable_msix(struct lpfc_hba *phba) 1911 { 1912 int error; 1913 1914 phba->msix_entries[0].entry = 0; 1915 phba->msix_entries[0].vector = 0; 1916 1917 error = pci_enable_msix(phba->pcidev, phba->msix_entries, 1918 ARRAY_SIZE(phba->msix_entries)); 1919 if (error) { 1920 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1921 "0420 Enable MSI-X failed (%d), continuing " 1922 "with MSI\n", error); 1923 pci_disable_msix(phba->pcidev); 1924 return error; 1925 } 1926 1927 error = request_irq(phba->msix_entries[0].vector, lpfc_intr_handler, 0, 1928 LPFC_DRIVER_NAME, phba); 1929 if (error) { 1930 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1931 "0421 MSI-X request_irq failed (%d), " 1932 "continuing with MSI\n", error); 1933 pci_disable_msix(phba->pcidev); 1934 } 1935 return error; 1936 } 1937 1938 static void 1939 lpfc_disable_msix(struct lpfc_hba *phba) 1940 { 1941 free_irq(phba->msix_entries[0].vector, phba); 1942 pci_disable_msix(phba->pcidev); 1943 } 1944 1945 static int __devinit 1946 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 1947 { 1948 struct lpfc_vport *vport = NULL; 1949 struct lpfc_hba *phba; 1950 struct lpfc_sli *psli; 1951 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 1952 struct Scsi_Host *shost = NULL; 1953 void *ptr; 1954 unsigned long bar0map_len, bar2map_len; 1955 int error = -ENODEV, retval; 1956 int i, hbq_count; 1957 uint16_t iotag; 1958 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 1959 1960 if (pci_enable_device_mem(pdev)) 1961 goto out; 1962 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 1963 goto out_disable_device; 1964 1965 phba = kzalloc(sizeof (struct lpfc_hba), GFP_KERNEL); 1966 if (!phba) 1967 goto out_release_regions; 1968 1969 spin_lock_init(&phba->hbalock); 1970 1971 /* Initialize ndlp management spinlock */ 1972 spin_lock_init(&phba->ndlp_lock); 1973 1974 phba->pcidev = pdev; 1975 1976 /* Assign an unused board number */ 1977 if ((phba->brd_no = lpfc_get_instance()) < 0) 1978 goto out_free_phba; 1979 1980 INIT_LIST_HEAD(&phba->port_list); 1981 /* 1982 * Get all the module params for configuring this host and then 1983 * establish the host. 1984 */ 1985 lpfc_get_cfgparam(phba); 1986 phba->max_vpi = LPFC_MAX_VPI; 1987 1988 /* Initialize timers used by driver */ 1989 init_timer(&phba->hb_tmofunc); 1990 phba->hb_tmofunc.function = lpfc_hb_timeout; 1991 phba->hb_tmofunc.data = (unsigned long)phba; 1992 1993 psli = &phba->sli; 1994 init_timer(&psli->mbox_tmo); 1995 psli->mbox_tmo.function = lpfc_mbox_timeout; 1996 psli->mbox_tmo.data = (unsigned long) phba; 1997 init_timer(&phba->fcp_poll_timer); 1998 phba->fcp_poll_timer.function = lpfc_poll_timeout; 1999 phba->fcp_poll_timer.data = (unsigned long) phba; 2000 init_timer(&phba->fabric_block_timer); 2001 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 2002 phba->fabric_block_timer.data = (unsigned long) phba; 2003 2004 pci_set_master(pdev); 2005 pci_try_set_mwi(pdev); 2006 2007 if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0) 2008 if (pci_set_dma_mask(phba->pcidev, DMA_32BIT_MASK) != 0) 2009 goto out_idr_remove; 2010 2011 /* 2012 * Get the bus address of Bar0 and Bar2 and the number of bytes 2013 * required by each mapping. 2014 */ 2015 phba->pci_bar0_map = pci_resource_start(phba->pcidev, 0); 2016 bar0map_len = pci_resource_len(phba->pcidev, 0); 2017 2018 phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2); 2019 bar2map_len = pci_resource_len(phba->pcidev, 2); 2020 2021 /* Map HBA SLIM to a kernel virtual address. */ 2022 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 2023 if (!phba->slim_memmap_p) { 2024 error = -ENODEV; 2025 dev_printk(KERN_ERR, &pdev->dev, 2026 "ioremap failed for SLIM memory.\n"); 2027 goto out_idr_remove; 2028 } 2029 2030 /* Map HBA Control Registers to a kernel virtual address. */ 2031 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 2032 if (!phba->ctrl_regs_memmap_p) { 2033 error = -ENODEV; 2034 dev_printk(KERN_ERR, &pdev->dev, 2035 "ioremap failed for HBA control registers.\n"); 2036 goto out_iounmap_slim; 2037 } 2038 2039 /* Allocate memory for SLI-2 structures */ 2040 phba->slim2p = dma_alloc_coherent(&phba->pcidev->dev, SLI2_SLIM_SIZE, 2041 &phba->slim2p_mapping, GFP_KERNEL); 2042 if (!phba->slim2p) 2043 goto out_iounmap; 2044 2045 memset(phba->slim2p, 0, SLI2_SLIM_SIZE); 2046 2047 phba->hbqslimp.virt = dma_alloc_coherent(&phba->pcidev->dev, 2048 lpfc_sli_hbq_size(), 2049 &phba->hbqslimp.phys, 2050 GFP_KERNEL); 2051 if (!phba->hbqslimp.virt) 2052 goto out_free_slim; 2053 2054 hbq_count = lpfc_sli_hbq_count(); 2055 ptr = phba->hbqslimp.virt; 2056 for (i = 0; i < hbq_count; ++i) { 2057 phba->hbqs[i].hbq_virt = ptr; 2058 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 2059 ptr += (lpfc_hbq_defs[i]->entry_count * 2060 sizeof(struct lpfc_hbq_entry)); 2061 } 2062 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 2063 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 2064 2065 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 2066 2067 INIT_LIST_HEAD(&phba->hbqbuf_in_list); 2068 2069 /* Initialize the SLI Layer to run with lpfc HBAs. */ 2070 lpfc_sli_setup(phba); 2071 lpfc_sli_queue_setup(phba); 2072 2073 retval = lpfc_mem_alloc(phba); 2074 if (retval) { 2075 error = retval; 2076 goto out_free_hbqslimp; 2077 } 2078 2079 /* Initialize and populate the iocb list per host. */ 2080 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 2081 for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) { 2082 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 2083 if (iocbq_entry == NULL) { 2084 printk(KERN_ERR "%s: only allocated %d iocbs of " 2085 "expected %d count. Unloading driver.\n", 2086 __func__, i, LPFC_IOCB_LIST_CNT); 2087 error = -ENOMEM; 2088 goto out_free_iocbq; 2089 } 2090 2091 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 2092 if (iotag == 0) { 2093 kfree (iocbq_entry); 2094 printk(KERN_ERR "%s: failed to allocate IOTAG. " 2095 "Unloading driver.\n", 2096 __func__); 2097 error = -ENOMEM; 2098 goto out_free_iocbq; 2099 } 2100 2101 spin_lock_irq(&phba->hbalock); 2102 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 2103 phba->total_iocbq_bufs++; 2104 spin_unlock_irq(&phba->hbalock); 2105 } 2106 2107 /* Initialize HBA structure */ 2108 phba->fc_edtov = FF_DEF_EDTOV; 2109 phba->fc_ratov = FF_DEF_RATOV; 2110 phba->fc_altov = FF_DEF_ALTOV; 2111 phba->fc_arbtov = FF_DEF_ARBTOV; 2112 2113 INIT_LIST_HEAD(&phba->work_list); 2114 phba->work_ha_mask = (HA_ERATT|HA_MBATT|HA_LATT); 2115 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 2116 2117 /* Initialize the wait queue head for the kernel thread */ 2118 init_waitqueue_head(&phba->work_waitq); 2119 2120 /* Startup the kernel thread for this host adapter. */ 2121 phba->worker_thread = kthread_run(lpfc_do_work, phba, 2122 "lpfc_worker_%d", phba->brd_no); 2123 if (IS_ERR(phba->worker_thread)) { 2124 error = PTR_ERR(phba->worker_thread); 2125 goto out_free_iocbq; 2126 } 2127 2128 /* Initialize the list of scsi buffers used by driver for scsi IO. */ 2129 spin_lock_init(&phba->scsi_buf_list_lock); 2130 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 2131 2132 /* Initialize list of fabric iocbs */ 2133 INIT_LIST_HEAD(&phba->fabric_iocb_list); 2134 2135 /* Initialize list to save ELS buffers */ 2136 INIT_LIST_HEAD(&phba->elsbuf); 2137 2138 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 2139 if (!vport) 2140 goto out_kthread_stop; 2141 2142 shost = lpfc_shost_from_vport(vport); 2143 phba->pport = vport; 2144 lpfc_debugfs_initialize(vport); 2145 2146 pci_set_drvdata(pdev, shost); 2147 phba->intr_type = NONE; 2148 2149 if (phba->cfg_use_msi == 2) { 2150 error = lpfc_enable_msix(phba); 2151 if (!error) 2152 phba->intr_type = MSIX; 2153 } 2154 2155 /* Fallback to MSI if MSI-X initialization failed */ 2156 if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) { 2157 retval = pci_enable_msi(phba->pcidev); 2158 if (!retval) 2159 phba->intr_type = MSI; 2160 else 2161 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2162 "0452 Enable MSI failed, continuing " 2163 "with IRQ\n"); 2164 } 2165 2166 /* MSI-X is the only case the doesn't need to call request_irq */ 2167 if (phba->intr_type != MSIX) { 2168 retval = request_irq(phba->pcidev->irq, lpfc_intr_handler, 2169 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 2170 if (retval) { 2171 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0451 Enable " 2172 "interrupt handler failed\n"); 2173 error = retval; 2174 goto out_disable_msi; 2175 } else if (phba->intr_type != MSI) 2176 phba->intr_type = INTx; 2177 } 2178 2179 phba->MBslimaddr = phba->slim_memmap_p; 2180 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 2181 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 2182 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 2183 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 2184 2185 if (lpfc_alloc_sysfs_attr(vport)) { 2186 error = -ENOMEM; 2187 goto out_free_irq; 2188 } 2189 2190 if (lpfc_sli_hba_setup(phba)) { 2191 error = -ENODEV; 2192 goto out_remove_device; 2193 } 2194 2195 /* 2196 * hba setup may have changed the hba_queue_depth so we need to adjust 2197 * the value of can_queue. 2198 */ 2199 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2200 2201 lpfc_host_attrib_init(shost); 2202 2203 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 2204 spin_lock_irq(shost->host_lock); 2205 lpfc_poll_start_timer(phba); 2206 spin_unlock_irq(shost->host_lock); 2207 } 2208 2209 scsi_scan_host(shost); 2210 2211 return 0; 2212 2213 out_remove_device: 2214 lpfc_free_sysfs_attr(vport); 2215 spin_lock_irq(shost->host_lock); 2216 vport->load_flag |= FC_UNLOADING; 2217 spin_unlock_irq(shost->host_lock); 2218 out_free_irq: 2219 lpfc_stop_phba_timers(phba); 2220 phba->pport->work_port_events = 0; 2221 2222 if (phba->intr_type == MSIX) 2223 lpfc_disable_msix(phba); 2224 else 2225 free_irq(phba->pcidev->irq, phba); 2226 2227 out_disable_msi: 2228 if (phba->intr_type == MSI) 2229 pci_disable_msi(phba->pcidev); 2230 destroy_port(vport); 2231 out_kthread_stop: 2232 kthread_stop(phba->worker_thread); 2233 out_free_iocbq: 2234 list_for_each_entry_safe(iocbq_entry, iocbq_next, 2235 &phba->lpfc_iocb_list, list) { 2236 kfree(iocbq_entry); 2237 phba->total_iocbq_bufs--; 2238 } 2239 lpfc_mem_free(phba); 2240 out_free_hbqslimp: 2241 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), phba->hbqslimp.virt, 2242 phba->hbqslimp.phys); 2243 out_free_slim: 2244 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, phba->slim2p, 2245 phba->slim2p_mapping); 2246 out_iounmap: 2247 iounmap(phba->ctrl_regs_memmap_p); 2248 out_iounmap_slim: 2249 iounmap(phba->slim_memmap_p); 2250 out_idr_remove: 2251 idr_remove(&lpfc_hba_index, phba->brd_no); 2252 out_free_phba: 2253 kfree(phba); 2254 out_release_regions: 2255 pci_release_selected_regions(pdev, bars); 2256 out_disable_device: 2257 pci_disable_device(pdev); 2258 out: 2259 pci_set_drvdata(pdev, NULL); 2260 if (shost) 2261 scsi_host_put(shost); 2262 return error; 2263 } 2264 2265 static void __devexit 2266 lpfc_pci_remove_one(struct pci_dev *pdev) 2267 { 2268 struct Scsi_Host *shost = pci_get_drvdata(pdev); 2269 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2270 struct lpfc_hba *phba = vport->phba; 2271 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 2272 2273 spin_lock_irq(&phba->hbalock); 2274 vport->load_flag |= FC_UNLOADING; 2275 spin_unlock_irq(&phba->hbalock); 2276 2277 kfree(vport->vname); 2278 lpfc_free_sysfs_attr(vport); 2279 2280 kthread_stop(phba->worker_thread); 2281 2282 fc_remove_host(shost); 2283 scsi_remove_host(shost); 2284 lpfc_cleanup(vport); 2285 2286 /* 2287 * Bring down the SLI Layer. This step disable all interrupts, 2288 * clears the rings, discards all mailbox commands, and resets 2289 * the HBA. 2290 */ 2291 lpfc_sli_hba_down(phba); 2292 lpfc_sli_brdrestart(phba); 2293 2294 lpfc_stop_phba_timers(phba); 2295 spin_lock_irq(&phba->hbalock); 2296 list_del_init(&vport->listentry); 2297 spin_unlock_irq(&phba->hbalock); 2298 2299 lpfc_debugfs_terminate(vport); 2300 2301 if (phba->intr_type == MSIX) 2302 lpfc_disable_msix(phba); 2303 else { 2304 free_irq(phba->pcidev->irq, phba); 2305 if (phba->intr_type == MSI) 2306 pci_disable_msi(phba->pcidev); 2307 } 2308 2309 pci_set_drvdata(pdev, NULL); 2310 scsi_host_put(shost); 2311 2312 /* 2313 * Call scsi_free before mem_free since scsi bufs are released to their 2314 * corresponding pools here. 2315 */ 2316 lpfc_scsi_free(phba); 2317 lpfc_mem_free(phba); 2318 2319 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), phba->hbqslimp.virt, 2320 phba->hbqslimp.phys); 2321 2322 /* Free resources associated with SLI2 interface */ 2323 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 2324 phba->slim2p, phba->slim2p_mapping); 2325 2326 /* unmap adapter SLIM and Control Registers */ 2327 iounmap(phba->ctrl_regs_memmap_p); 2328 iounmap(phba->slim_memmap_p); 2329 2330 idr_remove(&lpfc_hba_index, phba->brd_no); 2331 2332 kfree(phba); 2333 2334 pci_release_selected_regions(pdev, bars); 2335 pci_disable_device(pdev); 2336 } 2337 2338 /** 2339 * lpfc_io_error_detected - called when PCI error is detected 2340 * @pdev: Pointer to PCI device 2341 * @state: The current pci conneection state 2342 * 2343 * This function is called after a PCI bus error affecting 2344 * this device has been detected. 2345 */ 2346 static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev, 2347 pci_channel_state_t state) 2348 { 2349 struct Scsi_Host *shost = pci_get_drvdata(pdev); 2350 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2351 struct lpfc_sli *psli = &phba->sli; 2352 struct lpfc_sli_ring *pring; 2353 2354 if (state == pci_channel_io_perm_failure) 2355 return PCI_ERS_RESULT_DISCONNECT; 2356 2357 pci_disable_device(pdev); 2358 /* 2359 * There may be I/Os dropped by the firmware. 2360 * Error iocb (I/O) on txcmplq and let the SCSI layer 2361 * retry it after re-establishing link. 2362 */ 2363 pring = &psli->ring[psli->fcp_ring]; 2364 lpfc_sli_abort_iocb_ring(phba, pring); 2365 2366 if (phba->intr_type == MSIX) 2367 lpfc_disable_msix(phba); 2368 else { 2369 free_irq(phba->pcidev->irq, phba); 2370 if (phba->intr_type == MSI) 2371 pci_disable_msi(phba->pcidev); 2372 } 2373 2374 /* Request a slot reset. */ 2375 return PCI_ERS_RESULT_NEED_RESET; 2376 } 2377 2378 /** 2379 * lpfc_io_slot_reset - called after the pci bus has been reset. 2380 * @pdev: Pointer to PCI device 2381 * 2382 * Restart the card from scratch, as if from a cold-boot. 2383 */ 2384 static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev) 2385 { 2386 struct Scsi_Host *shost = pci_get_drvdata(pdev); 2387 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2388 struct lpfc_sli *psli = &phba->sli; 2389 int error, retval; 2390 2391 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 2392 if (pci_enable_device_mem(pdev)) { 2393 printk(KERN_ERR "lpfc: Cannot re-enable " 2394 "PCI device after reset.\n"); 2395 return PCI_ERS_RESULT_DISCONNECT; 2396 } 2397 2398 pci_set_master(pdev); 2399 2400 spin_lock_irq(&phba->hbalock); 2401 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 2402 spin_unlock_irq(&phba->hbalock); 2403 2404 /* Enable configured interrupt method */ 2405 phba->intr_type = NONE; 2406 if (phba->cfg_use_msi == 2) { 2407 error = lpfc_enable_msix(phba); 2408 if (!error) 2409 phba->intr_type = MSIX; 2410 } 2411 2412 /* Fallback to MSI if MSI-X initialization failed */ 2413 if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) { 2414 retval = pci_enable_msi(phba->pcidev); 2415 if (!retval) 2416 phba->intr_type = MSI; 2417 else 2418 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2419 "0470 Enable MSI failed, continuing " 2420 "with IRQ\n"); 2421 } 2422 2423 /* MSI-X is the only case the doesn't need to call request_irq */ 2424 if (phba->intr_type != MSIX) { 2425 retval = request_irq(phba->pcidev->irq, lpfc_intr_handler, 2426 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 2427 if (retval) { 2428 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2429 "0471 Enable interrupt handler " 2430 "failed\n"); 2431 } else if (phba->intr_type != MSI) 2432 phba->intr_type = INTx; 2433 } 2434 2435 /* Take device offline; this will perform cleanup */ 2436 lpfc_offline(phba); 2437 lpfc_sli_brdrestart(phba); 2438 2439 return PCI_ERS_RESULT_RECOVERED; 2440 } 2441 2442 /** 2443 * lpfc_io_resume - called when traffic can start flowing again. 2444 * @pdev: Pointer to PCI device 2445 * 2446 * This callback is called when the error recovery driver tells us that 2447 * its OK to resume normal operation. 2448 */ 2449 static void lpfc_io_resume(struct pci_dev *pdev) 2450 { 2451 struct Scsi_Host *shost = pci_get_drvdata(pdev); 2452 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2453 2454 lpfc_online(phba); 2455 } 2456 2457 static struct pci_device_id lpfc_id_table[] = { 2458 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 2459 PCI_ANY_ID, PCI_ANY_ID, }, 2460 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 2461 PCI_ANY_ID, PCI_ANY_ID, }, 2462 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 2463 PCI_ANY_ID, PCI_ANY_ID, }, 2464 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 2465 PCI_ANY_ID, PCI_ANY_ID, }, 2466 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 2467 PCI_ANY_ID, PCI_ANY_ID, }, 2468 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 2469 PCI_ANY_ID, PCI_ANY_ID, }, 2470 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 2471 PCI_ANY_ID, PCI_ANY_ID, }, 2472 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 2473 PCI_ANY_ID, PCI_ANY_ID, }, 2474 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 2475 PCI_ANY_ID, PCI_ANY_ID, }, 2476 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 2477 PCI_ANY_ID, PCI_ANY_ID, }, 2478 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 2479 PCI_ANY_ID, PCI_ANY_ID, }, 2480 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 2481 PCI_ANY_ID, PCI_ANY_ID, }, 2482 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 2483 PCI_ANY_ID, PCI_ANY_ID, }, 2484 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 2485 PCI_ANY_ID, PCI_ANY_ID, }, 2486 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 2487 PCI_ANY_ID, PCI_ANY_ID, }, 2488 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 2489 PCI_ANY_ID, PCI_ANY_ID, }, 2490 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 2491 PCI_ANY_ID, PCI_ANY_ID, }, 2492 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 2493 PCI_ANY_ID, PCI_ANY_ID, }, 2494 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 2495 PCI_ANY_ID, PCI_ANY_ID, }, 2496 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 2497 PCI_ANY_ID, PCI_ANY_ID, }, 2498 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 2499 PCI_ANY_ID, PCI_ANY_ID, }, 2500 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 2501 PCI_ANY_ID, PCI_ANY_ID, }, 2502 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 2503 PCI_ANY_ID, PCI_ANY_ID, }, 2504 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 2505 PCI_ANY_ID, PCI_ANY_ID, }, 2506 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 2507 PCI_ANY_ID, PCI_ANY_ID, }, 2508 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 2509 PCI_ANY_ID, PCI_ANY_ID, }, 2510 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 2511 PCI_ANY_ID, PCI_ANY_ID, }, 2512 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 2513 PCI_ANY_ID, PCI_ANY_ID, }, 2514 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 2515 PCI_ANY_ID, PCI_ANY_ID, }, 2516 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 2517 PCI_ANY_ID, PCI_ANY_ID, }, 2518 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 2519 PCI_ANY_ID, PCI_ANY_ID, }, 2520 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 2521 PCI_ANY_ID, PCI_ANY_ID, }, 2522 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 2523 PCI_ANY_ID, PCI_ANY_ID, }, 2524 { 0 } 2525 }; 2526 2527 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 2528 2529 static struct pci_error_handlers lpfc_err_handler = { 2530 .error_detected = lpfc_io_error_detected, 2531 .slot_reset = lpfc_io_slot_reset, 2532 .resume = lpfc_io_resume, 2533 }; 2534 2535 static struct pci_driver lpfc_driver = { 2536 .name = LPFC_DRIVER_NAME, 2537 .id_table = lpfc_id_table, 2538 .probe = lpfc_pci_probe_one, 2539 .remove = __devexit_p(lpfc_pci_remove_one), 2540 .err_handler = &lpfc_err_handler, 2541 }; 2542 2543 static int __init 2544 lpfc_init(void) 2545 { 2546 int error = 0; 2547 2548 printk(LPFC_MODULE_DESC "\n"); 2549 printk(LPFC_COPYRIGHT "\n"); 2550 2551 if (lpfc_enable_npiv) { 2552 lpfc_transport_functions.vport_create = lpfc_vport_create; 2553 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 2554 } 2555 lpfc_transport_template = 2556 fc_attach_transport(&lpfc_transport_functions); 2557 if (lpfc_transport_template == NULL) 2558 return -ENOMEM; 2559 if (lpfc_enable_npiv) { 2560 lpfc_vport_transport_template = 2561 fc_attach_transport(&lpfc_vport_transport_functions); 2562 if (lpfc_vport_transport_template == NULL) { 2563 fc_release_transport(lpfc_transport_template); 2564 return -ENOMEM; 2565 } 2566 } 2567 error = pci_register_driver(&lpfc_driver); 2568 if (error) { 2569 fc_release_transport(lpfc_transport_template); 2570 fc_release_transport(lpfc_vport_transport_template); 2571 } 2572 2573 return error; 2574 } 2575 2576 static void __exit 2577 lpfc_exit(void) 2578 { 2579 pci_unregister_driver(&lpfc_driver); 2580 fc_release_transport(lpfc_transport_template); 2581 if (lpfc_enable_npiv) 2582 fc_release_transport(lpfc_vport_transport_template); 2583 } 2584 2585 module_init(lpfc_init); 2586 module_exit(lpfc_exit); 2587 MODULE_LICENSE("GPL"); 2588 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 2589 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 2590 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 2591