1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2006 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 31 #include <scsi/scsi.h> 32 #include <scsi/scsi_device.h> 33 #include <scsi/scsi_host.h> 34 #include <scsi/scsi_transport_fc.h> 35 36 #include "lpfc_hw.h" 37 #include "lpfc_sli.h" 38 #include "lpfc_disc.h" 39 #include "lpfc_scsi.h" 40 #include "lpfc.h" 41 #include "lpfc_logmsg.h" 42 #include "lpfc_crtn.h" 43 #include "lpfc_version.h" 44 45 static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int); 46 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 47 static int lpfc_post_rcv_buf(struct lpfc_hba *); 48 49 static struct scsi_transport_template *lpfc_transport_template = NULL; 50 static DEFINE_IDR(lpfc_hba_index); 51 52 /************************************************************************/ 53 /* */ 54 /* lpfc_config_port_prep */ 55 /* This routine will do LPFC initialization prior to the */ 56 /* CONFIG_PORT mailbox command. This will be initialized */ 57 /* as a SLI layer callback routine. */ 58 /* This routine returns 0 on success or -ERESTART if it wants */ 59 /* the SLI layer to reset the HBA and try again. Any */ 60 /* other return value indicates an error. */ 61 /* */ 62 /************************************************************************/ 63 int 64 lpfc_config_port_prep(struct lpfc_hba * phba) 65 { 66 lpfc_vpd_t *vp = &phba->vpd; 67 int i = 0, rc; 68 LPFC_MBOXQ_t *pmb; 69 MAILBOX_t *mb; 70 char *lpfc_vpd_data = NULL; 71 uint16_t offset = 0; 72 static char licensed[56] = 73 "key unlock for use with gnu public licensed code only\0"; 74 static int init_key = 1; 75 76 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 77 if (!pmb) { 78 phba->hba_state = LPFC_HBA_ERROR; 79 return -ENOMEM; 80 } 81 82 mb = &pmb->mb; 83 phba->hba_state = LPFC_INIT_MBX_CMDS; 84 85 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 86 if (init_key) { 87 uint32_t *ptext = (uint32_t *) licensed; 88 89 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 90 *ptext = cpu_to_be32(*ptext); 91 init_key = 0; 92 } 93 94 lpfc_read_nv(phba, pmb); 95 memset((char*)mb->un.varRDnvp.rsvd3, 0, 96 sizeof (mb->un.varRDnvp.rsvd3)); 97 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 98 sizeof (licensed)); 99 100 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 101 102 if (rc != MBX_SUCCESS) { 103 lpfc_printf_log(phba, 104 KERN_ERR, 105 LOG_MBOX, 106 "%d:0324 Config Port initialization " 107 "error, mbxCmd x%x READ_NVPARM, " 108 "mbxStatus x%x\n", 109 phba->brd_no, 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 (mb->un.varRDnvp.nodename)); 116 } 117 118 /* Setup and issue mailbox READ REV command */ 119 lpfc_read_rev(phba, pmb); 120 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 121 if (rc != MBX_SUCCESS) { 122 lpfc_printf_log(phba, 123 KERN_ERR, 124 LOG_INIT, 125 "%d:0439 Adapter failed to init, mbxCmd x%x " 126 "READ_REV, mbxStatus x%x\n", 127 phba->brd_no, 128 mb->mbxCommand, mb->mbxStatus); 129 mempool_free( pmb, phba->mbox_mem_pool); 130 return -ERESTART; 131 } 132 133 /* 134 * The value of rr must be 1 since the driver set the cv field to 1. 135 * This setting requires the FW to set all revision fields. 136 */ 137 if (mb->un.varRdRev.rr == 0) { 138 vp->rev.rBit = 0; 139 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 140 "%d:0440 Adapter failed to init, READ_REV has " 141 "missing revision information.\n", 142 phba->brd_no); 143 mempool_free(pmb, phba->mbox_mem_pool); 144 return -ERESTART; 145 } 146 147 /* Save information as VPD data */ 148 vp->rev.rBit = 1; 149 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 150 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 151 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 152 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 153 vp->rev.biuRev = mb->un.varRdRev.biuRev; 154 vp->rev.smRev = mb->un.varRdRev.smRev; 155 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 156 vp->rev.endecRev = mb->un.varRdRev.endecRev; 157 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 158 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 159 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 160 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 161 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 162 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 163 164 if (lpfc_is_LC_HBA(phba->pcidev->device)) 165 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 166 sizeof (phba->RandomData)); 167 168 /* Get adapter VPD information */ 169 pmb->context2 = kmalloc(DMP_RSP_SIZE, GFP_KERNEL); 170 if (!pmb->context2) 171 goto out_free_mbox; 172 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 173 if (!lpfc_vpd_data) 174 goto out_free_context2; 175 176 do { 177 lpfc_dump_mem(phba, pmb, offset); 178 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 179 180 if (rc != MBX_SUCCESS) { 181 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 182 "%d:0441 VPD not present on adapter, " 183 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 184 phba->brd_no, 185 mb->mbxCommand, mb->mbxStatus); 186 mb->un.varDmp.word_cnt = 0; 187 } 188 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 189 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 190 lpfc_sli_pcimem_bcopy(pmb->context2, lpfc_vpd_data + offset, 191 mb->un.varDmp.word_cnt); 192 offset += mb->un.varDmp.word_cnt; 193 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 194 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 195 196 kfree(lpfc_vpd_data); 197 out_free_context2: 198 kfree(pmb->context2); 199 out_free_mbox: 200 mempool_free(pmb, phba->mbox_mem_pool); 201 return 0; 202 } 203 204 /************************************************************************/ 205 /* */ 206 /* lpfc_config_port_post */ 207 /* This routine will do LPFC initialization after the */ 208 /* CONFIG_PORT mailbox command. This will be initialized */ 209 /* as a SLI layer callback routine. */ 210 /* This routine returns 0 on success. Any other return value */ 211 /* indicates an error. */ 212 /* */ 213 /************************************************************************/ 214 int 215 lpfc_config_port_post(struct lpfc_hba * phba) 216 { 217 LPFC_MBOXQ_t *pmb; 218 MAILBOX_t *mb; 219 struct lpfc_dmabuf *mp; 220 struct lpfc_sli *psli = &phba->sli; 221 uint32_t status, timeout; 222 int i, j, rc; 223 224 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 225 if (!pmb) { 226 phba->hba_state = LPFC_HBA_ERROR; 227 return -ENOMEM; 228 } 229 mb = &pmb->mb; 230 231 lpfc_config_link(phba, pmb); 232 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 233 if (rc != MBX_SUCCESS) { 234 lpfc_printf_log(phba, 235 KERN_ERR, 236 LOG_INIT, 237 "%d:0447 Adapter failed init, mbxCmd x%x " 238 "CONFIG_LINK mbxStatus x%x\n", 239 phba->brd_no, 240 mb->mbxCommand, mb->mbxStatus); 241 phba->hba_state = LPFC_HBA_ERROR; 242 mempool_free( pmb, phba->mbox_mem_pool); 243 return -EIO; 244 } 245 246 /* Get login parameters for NID. */ 247 lpfc_read_sparam(phba, pmb); 248 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 249 lpfc_printf_log(phba, 250 KERN_ERR, 251 LOG_INIT, 252 "%d:0448 Adapter failed init, mbxCmd x%x " 253 "READ_SPARM mbxStatus x%x\n", 254 phba->brd_no, 255 mb->mbxCommand, mb->mbxStatus); 256 phba->hba_state = LPFC_HBA_ERROR; 257 mp = (struct lpfc_dmabuf *) pmb->context1; 258 mempool_free( pmb, phba->mbox_mem_pool); 259 lpfc_mbuf_free(phba, mp->virt, mp->phys); 260 kfree(mp); 261 return -EIO; 262 } 263 264 mp = (struct lpfc_dmabuf *) pmb->context1; 265 266 memcpy(&phba->fc_sparam, mp->virt, sizeof (struct serv_parm)); 267 lpfc_mbuf_free(phba, mp->virt, mp->phys); 268 kfree(mp); 269 pmb->context1 = NULL; 270 271 if (phba->cfg_soft_wwnn) 272 u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn); 273 if (phba->cfg_soft_wwpn) 274 u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn); 275 memcpy(&phba->fc_nodename, &phba->fc_sparam.nodeName, 276 sizeof (struct lpfc_name)); 277 memcpy(&phba->fc_portname, &phba->fc_sparam.portName, 278 sizeof (struct lpfc_name)); 279 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 280 /* This should be consolidated into parse_vpd ? - mr */ 281 if (phba->SerialNumber[0] == 0) { 282 uint8_t *outptr; 283 284 outptr = &phba->fc_nodename.u.s.IEEE[0]; 285 for (i = 0; i < 12; i++) { 286 status = *outptr++; 287 j = ((status & 0xf0) >> 4); 288 if (j <= 9) 289 phba->SerialNumber[i] = 290 (char)((uint8_t) 0x30 + (uint8_t) j); 291 else 292 phba->SerialNumber[i] = 293 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 294 i++; 295 j = (status & 0xf); 296 if (j <= 9) 297 phba->SerialNumber[i] = 298 (char)((uint8_t) 0x30 + (uint8_t) j); 299 else 300 phba->SerialNumber[i] = 301 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 302 } 303 } 304 305 lpfc_read_config(phba, pmb); 306 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 307 lpfc_printf_log(phba, 308 KERN_ERR, 309 LOG_INIT, 310 "%d:0453 Adapter failed to init, mbxCmd x%x " 311 "READ_CONFIG, mbxStatus x%x\n", 312 phba->brd_no, 313 mb->mbxCommand, mb->mbxStatus); 314 phba->hba_state = LPFC_HBA_ERROR; 315 mempool_free( pmb, phba->mbox_mem_pool); 316 return -EIO; 317 } 318 319 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 320 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 321 phba->cfg_hba_queue_depth = 322 mb->un.varRdConfig.max_xri + 1; 323 324 phba->lmt = mb->un.varRdConfig.lmt; 325 326 /* Get the default values for Model Name and Description */ 327 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 328 329 if ((phba->cfg_link_speed > LINK_SPEED_10G) 330 || ((phba->cfg_link_speed == LINK_SPEED_1G) 331 && !(phba->lmt & LMT_1Gb)) 332 || ((phba->cfg_link_speed == LINK_SPEED_2G) 333 && !(phba->lmt & LMT_2Gb)) 334 || ((phba->cfg_link_speed == LINK_SPEED_4G) 335 && !(phba->lmt & LMT_4Gb)) 336 || ((phba->cfg_link_speed == LINK_SPEED_8G) 337 && !(phba->lmt & LMT_8Gb)) 338 || ((phba->cfg_link_speed == LINK_SPEED_10G) 339 && !(phba->lmt & LMT_10Gb))) { 340 /* Reset link speed to auto */ 341 lpfc_printf_log(phba, 342 KERN_WARNING, 343 LOG_LINK_EVENT, 344 "%d:1302 Invalid speed for this board: " 345 "Reset link speed to auto: x%x\n", 346 phba->brd_no, 347 phba->cfg_link_speed); 348 phba->cfg_link_speed = LINK_SPEED_AUTO; 349 } 350 351 phba->hba_state = LPFC_LINK_DOWN; 352 353 /* Only process IOCBs on ring 0 till hba_state is READY */ 354 if (psli->ring[psli->extra_ring].cmdringaddr) 355 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 356 if (psli->ring[psli->fcp_ring].cmdringaddr) 357 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 358 if (psli->ring[psli->next_ring].cmdringaddr) 359 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 360 361 /* Post receive buffers for desired rings */ 362 lpfc_post_rcv_buf(phba); 363 364 /* Enable appropriate host interrupts */ 365 spin_lock_irq(phba->host->host_lock); 366 status = readl(phba->HCregaddr); 367 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 368 if (psli->num_rings > 0) 369 status |= HC_R0INT_ENA; 370 if (psli->num_rings > 1) 371 status |= HC_R1INT_ENA; 372 if (psli->num_rings > 2) 373 status |= HC_R2INT_ENA; 374 if (psli->num_rings > 3) 375 status |= HC_R3INT_ENA; 376 377 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 378 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 379 status &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 380 381 writel(status, phba->HCregaddr); 382 readl(phba->HCregaddr); /* flush */ 383 spin_unlock_irq(phba->host->host_lock); 384 385 /* 386 * Setup the ring 0 (els) timeout handler 387 */ 388 timeout = phba->fc_ratov << 1; 389 phba->els_tmofunc.expires = jiffies + HZ * timeout; 390 add_timer(&phba->els_tmofunc); 391 392 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed); 393 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 394 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 395 if (rc != MBX_SUCCESS) { 396 lpfc_printf_log(phba, 397 KERN_ERR, 398 LOG_INIT, 399 "%d:0454 Adapter failed to init, mbxCmd x%x " 400 "INIT_LINK, mbxStatus x%x\n", 401 phba->brd_no, 402 mb->mbxCommand, mb->mbxStatus); 403 404 /* Clear all interrupt enable conditions */ 405 writel(0, phba->HCregaddr); 406 readl(phba->HCregaddr); /* flush */ 407 /* Clear all pending interrupts */ 408 writel(0xffffffff, phba->HAregaddr); 409 readl(phba->HAregaddr); /* flush */ 410 411 phba->hba_state = LPFC_HBA_ERROR; 412 if (rc != MBX_BUSY) 413 mempool_free(pmb, phba->mbox_mem_pool); 414 return -EIO; 415 } 416 /* MBOX buffer will be freed in mbox compl */ 417 418 return (0); 419 } 420 421 static int 422 lpfc_discovery_wait(struct lpfc_hba *phba) 423 { 424 int i = 0; 425 426 while ((phba->hba_state != LPFC_HBA_READY) || 427 (phba->num_disc_nodes) || (phba->fc_prli_sent) || 428 ((phba->fc_map_cnt == 0) && (i<2)) || 429 (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE)) { 430 /* Check every second for 30 retries. */ 431 i++; 432 if (i > 30) { 433 return -ETIMEDOUT; 434 } 435 if ((i >= 15) && (phba->hba_state <= LPFC_LINK_DOWN)) { 436 /* The link is down. Set linkdown timeout */ 437 return -ETIMEDOUT; 438 } 439 440 /* Delay for 1 second to give discovery time to complete. */ 441 msleep(1000); 442 443 } 444 445 return 0; 446 } 447 448 /************************************************************************/ 449 /* */ 450 /* lpfc_hba_down_prep */ 451 /* This routine will do LPFC uninitialization before the */ 452 /* HBA is reset when bringing down the SLI Layer. This will be */ 453 /* initialized as a SLI layer callback routine. */ 454 /* This routine returns 0 on success. Any other return value */ 455 /* indicates an error. */ 456 /* */ 457 /************************************************************************/ 458 int 459 lpfc_hba_down_prep(struct lpfc_hba * phba) 460 { 461 /* Disable interrupts */ 462 writel(0, phba->HCregaddr); 463 readl(phba->HCregaddr); /* flush */ 464 465 /* Cleanup potential discovery resources */ 466 lpfc_els_flush_rscn(phba); 467 lpfc_els_flush_cmd(phba); 468 lpfc_disc_flush_list(phba); 469 470 return (0); 471 } 472 473 /************************************************************************/ 474 /* */ 475 /* lpfc_hba_down_post */ 476 /* This routine will do uninitialization after the HBA is reset */ 477 /* when bringing down the SLI Layer. */ 478 /* This routine returns 0 on success. Any other return value */ 479 /* indicates an error. */ 480 /* */ 481 /************************************************************************/ 482 int 483 lpfc_hba_down_post(struct lpfc_hba * phba) 484 { 485 struct lpfc_sli *psli = &phba->sli; 486 struct lpfc_sli_ring *pring; 487 struct lpfc_dmabuf *mp, *next_mp; 488 int i; 489 490 /* Cleanup preposted buffers on the ELS ring */ 491 pring = &psli->ring[LPFC_ELS_RING]; 492 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 493 list_del(&mp->list); 494 pring->postbufq_cnt--; 495 lpfc_mbuf_free(phba, mp->virt, mp->phys); 496 kfree(mp); 497 } 498 499 for (i = 0; i < psli->num_rings; i++) { 500 pring = &psli->ring[i]; 501 lpfc_sli_abort_iocb_ring(phba, pring); 502 } 503 504 return 0; 505 } 506 507 /************************************************************************/ 508 /* */ 509 /* lpfc_handle_eratt */ 510 /* This routine will handle processing a Host Attention */ 511 /* Error Status event. This will be initialized */ 512 /* as a SLI layer callback routine. */ 513 /* */ 514 /************************************************************************/ 515 void 516 lpfc_handle_eratt(struct lpfc_hba * phba) 517 { 518 struct lpfc_sli *psli = &phba->sli; 519 struct lpfc_sli_ring *pring; 520 uint32_t event_data; 521 /* If the pci channel is offline, ignore possible errors, 522 * since we cannot communicate with the pci card anyway. */ 523 if (pci_channel_offline(phba->pcidev)) 524 return; 525 526 if (phba->work_hs & HS_FFER6 || 527 phba->work_hs & HS_FFER5) { 528 /* Re-establishing Link */ 529 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 530 "%d:1301 Re-establishing Link " 531 "Data: x%x x%x x%x\n", 532 phba->brd_no, phba->work_hs, 533 phba->work_status[0], phba->work_status[1]); 534 spin_lock_irq(phba->host->host_lock); 535 phba->fc_flag |= FC_ESTABLISH_LINK; 536 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 537 spin_unlock_irq(phba->host->host_lock); 538 539 /* 540 * Firmware stops when it triggled erratt with HS_FFER6. 541 * That could cause the I/Os dropped by the firmware. 542 * Error iocb (I/O) on txcmplq and let the SCSI layer 543 * retry it after re-establishing link. 544 */ 545 pring = &psli->ring[psli->fcp_ring]; 546 lpfc_sli_abort_iocb_ring(phba, pring); 547 548 549 /* 550 * There was a firmware error. Take the hba offline and then 551 * attempt to restart it. 552 */ 553 lpfc_offline(phba); 554 lpfc_sli_brdrestart(phba); 555 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 556 mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60); 557 return; 558 } 559 } else { 560 /* The if clause above forces this code path when the status 561 * failure is a value other than FFER6. Do not call the offline 562 * twice. This is the adapter hardware error path. 563 */ 564 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 565 "%d:0457 Adapter Hardware Error " 566 "Data: x%x x%x x%x\n", 567 phba->brd_no, phba->work_hs, 568 phba->work_status[0], phba->work_status[1]); 569 570 event_data = FC_REG_DUMP_EVENT; 571 fc_host_post_vendor_event(phba->host, fc_get_event_number(), 572 sizeof(event_data), (char *) &event_data, 573 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 574 575 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 576 lpfc_offline(phba); 577 phba->hba_state = LPFC_HBA_ERROR; 578 lpfc_hba_down_post(phba); 579 } 580 } 581 582 /************************************************************************/ 583 /* */ 584 /* lpfc_handle_latt */ 585 /* This routine will handle processing a Host Attention */ 586 /* Link Status event. This will be initialized */ 587 /* as a SLI layer callback routine. */ 588 /* */ 589 /************************************************************************/ 590 void 591 lpfc_handle_latt(struct lpfc_hba * phba) 592 { 593 struct lpfc_sli *psli = &phba->sli; 594 LPFC_MBOXQ_t *pmb; 595 volatile uint32_t control; 596 struct lpfc_dmabuf *mp; 597 int rc = -ENOMEM; 598 599 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 600 if (!pmb) 601 goto lpfc_handle_latt_err_exit; 602 603 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 604 if (!mp) 605 goto lpfc_handle_latt_free_pmb; 606 607 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 608 if (!mp->virt) 609 goto lpfc_handle_latt_free_mp; 610 611 rc = -EIO; 612 613 /* Cleanup any outstanding ELS commands */ 614 lpfc_els_flush_cmd(phba); 615 616 psli->slistat.link_event++; 617 lpfc_read_la(phba, pmb, mp); 618 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 619 rc = lpfc_sli_issue_mbox (phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB)); 620 if (rc == MBX_NOT_FINISHED) 621 goto lpfc_handle_latt_free_mbuf; 622 623 /* Clear Link Attention in HA REG */ 624 spin_lock_irq(phba->host->host_lock); 625 writel(HA_LATT, phba->HAregaddr); 626 readl(phba->HAregaddr); /* flush */ 627 spin_unlock_irq(phba->host->host_lock); 628 629 return; 630 631 lpfc_handle_latt_free_mbuf: 632 lpfc_mbuf_free(phba, mp->virt, mp->phys); 633 lpfc_handle_latt_free_mp: 634 kfree(mp); 635 lpfc_handle_latt_free_pmb: 636 kfree(pmb); 637 lpfc_handle_latt_err_exit: 638 /* Enable Link attention interrupts */ 639 spin_lock_irq(phba->host->host_lock); 640 psli->sli_flag |= LPFC_PROCESS_LA; 641 control = readl(phba->HCregaddr); 642 control |= HC_LAINT_ENA; 643 writel(control, phba->HCregaddr); 644 readl(phba->HCregaddr); /* flush */ 645 646 /* Clear Link Attention in HA REG */ 647 writel(HA_LATT, phba->HAregaddr); 648 readl(phba->HAregaddr); /* flush */ 649 spin_unlock_irq(phba->host->host_lock); 650 lpfc_linkdown(phba); 651 phba->hba_state = LPFC_HBA_ERROR; 652 653 /* The other case is an error from issue_mbox */ 654 if (rc == -ENOMEM) 655 lpfc_printf_log(phba, 656 KERN_WARNING, 657 LOG_MBOX, 658 "%d:0300 READ_LA: no buffers\n", 659 phba->brd_no); 660 661 return; 662 } 663 664 /************************************************************************/ 665 /* */ 666 /* lpfc_parse_vpd */ 667 /* This routine will parse the VPD data */ 668 /* */ 669 /************************************************************************/ 670 static int 671 lpfc_parse_vpd(struct lpfc_hba * phba, uint8_t * vpd, int len) 672 { 673 uint8_t lenlo, lenhi; 674 uint32_t Length; 675 int i, j; 676 int finished = 0; 677 int index = 0; 678 679 if (!vpd) 680 return 0; 681 682 /* Vital Product */ 683 lpfc_printf_log(phba, 684 KERN_INFO, 685 LOG_INIT, 686 "%d:0455 Vital Product Data: x%x x%x x%x x%x\n", 687 phba->brd_no, 688 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 689 (uint32_t) vpd[3]); 690 while (!finished && (index < (len - 4))) { 691 switch (vpd[index]) { 692 case 0x82: 693 case 0x91: 694 index += 1; 695 lenlo = vpd[index]; 696 index += 1; 697 lenhi = vpd[index]; 698 index += 1; 699 i = ((((unsigned short)lenhi) << 8) + lenlo); 700 index += i; 701 break; 702 case 0x90: 703 index += 1; 704 lenlo = vpd[index]; 705 index += 1; 706 lenhi = vpd[index]; 707 index += 1; 708 Length = ((((unsigned short)lenhi) << 8) + lenlo); 709 if (Length > len - index) 710 Length = len - index; 711 while (Length > 0) { 712 /* Look for Serial Number */ 713 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 714 index += 2; 715 i = vpd[index]; 716 index += 1; 717 j = 0; 718 Length -= (3+i); 719 while(i--) { 720 phba->SerialNumber[j++] = vpd[index++]; 721 if (j == 31) 722 break; 723 } 724 phba->SerialNumber[j] = 0; 725 continue; 726 } 727 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 728 phba->vpd_flag |= VPD_MODEL_DESC; 729 index += 2; 730 i = vpd[index]; 731 index += 1; 732 j = 0; 733 Length -= (3+i); 734 while(i--) { 735 phba->ModelDesc[j++] = vpd[index++]; 736 if (j == 255) 737 break; 738 } 739 phba->ModelDesc[j] = 0; 740 continue; 741 } 742 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 743 phba->vpd_flag |= VPD_MODEL_NAME; 744 index += 2; 745 i = vpd[index]; 746 index += 1; 747 j = 0; 748 Length -= (3+i); 749 while(i--) { 750 phba->ModelName[j++] = vpd[index++]; 751 if (j == 79) 752 break; 753 } 754 phba->ModelName[j] = 0; 755 continue; 756 } 757 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 758 phba->vpd_flag |= VPD_PROGRAM_TYPE; 759 index += 2; 760 i = vpd[index]; 761 index += 1; 762 j = 0; 763 Length -= (3+i); 764 while(i--) { 765 phba->ProgramType[j++] = vpd[index++]; 766 if (j == 255) 767 break; 768 } 769 phba->ProgramType[j] = 0; 770 continue; 771 } 772 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 773 phba->vpd_flag |= VPD_PORT; 774 index += 2; 775 i = vpd[index]; 776 index += 1; 777 j = 0; 778 Length -= (3+i); 779 while(i--) { 780 phba->Port[j++] = vpd[index++]; 781 if (j == 19) 782 break; 783 } 784 phba->Port[j] = 0; 785 continue; 786 } 787 else { 788 index += 2; 789 i = vpd[index]; 790 index += 1; 791 index += i; 792 Length -= (3 + i); 793 } 794 } 795 finished = 0; 796 break; 797 case 0x78: 798 finished = 1; 799 break; 800 default: 801 index ++; 802 break; 803 } 804 } 805 806 return(1); 807 } 808 809 static void 810 lpfc_get_hba_model_desc(struct lpfc_hba * phba, uint8_t * mdp, uint8_t * descp) 811 { 812 lpfc_vpd_t *vp; 813 uint16_t dev_id = phba->pcidev->device; 814 int max_speed; 815 struct { 816 char * name; 817 int max_speed; 818 char * bus; 819 } m = {"<Unknown>", 0, ""}; 820 821 if (mdp && mdp[0] != '\0' 822 && descp && descp[0] != '\0') 823 return; 824 825 if (phba->lmt & LMT_10Gb) 826 max_speed = 10; 827 else if (phba->lmt & LMT_8Gb) 828 max_speed = 8; 829 else if (phba->lmt & LMT_4Gb) 830 max_speed = 4; 831 else if (phba->lmt & LMT_2Gb) 832 max_speed = 2; 833 else 834 max_speed = 1; 835 836 vp = &phba->vpd; 837 838 switch (dev_id) { 839 case PCI_DEVICE_ID_FIREFLY: 840 m = (typeof(m)){"LP6000", max_speed, "PCI"}; 841 break; 842 case PCI_DEVICE_ID_SUPERFLY: 843 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 844 m = (typeof(m)){"LP7000", max_speed, "PCI"}; 845 else 846 m = (typeof(m)){"LP7000E", max_speed, "PCI"}; 847 break; 848 case PCI_DEVICE_ID_DRAGONFLY: 849 m = (typeof(m)){"LP8000", max_speed, "PCI"}; 850 break; 851 case PCI_DEVICE_ID_CENTAUR: 852 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 853 m = (typeof(m)){"LP9002", max_speed, "PCI"}; 854 else 855 m = (typeof(m)){"LP9000", max_speed, "PCI"}; 856 break; 857 case PCI_DEVICE_ID_RFLY: 858 m = (typeof(m)){"LP952", max_speed, "PCI"}; 859 break; 860 case PCI_DEVICE_ID_PEGASUS: 861 m = (typeof(m)){"LP9802", max_speed, "PCI-X"}; 862 break; 863 case PCI_DEVICE_ID_THOR: 864 m = (typeof(m)){"LP10000", max_speed, "PCI-X"}; 865 break; 866 case PCI_DEVICE_ID_VIPER: 867 m = (typeof(m)){"LPX1000", max_speed, "PCI-X"}; 868 break; 869 case PCI_DEVICE_ID_PFLY: 870 m = (typeof(m)){"LP982", max_speed, "PCI-X"}; 871 break; 872 case PCI_DEVICE_ID_TFLY: 873 m = (typeof(m)){"LP1050", max_speed, "PCI-X"}; 874 break; 875 case PCI_DEVICE_ID_HELIOS: 876 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"}; 877 break; 878 case PCI_DEVICE_ID_HELIOS_SCSP: 879 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"}; 880 break; 881 case PCI_DEVICE_ID_HELIOS_DCSP: 882 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"}; 883 break; 884 case PCI_DEVICE_ID_NEPTUNE: 885 m = (typeof(m)){"LPe1000", max_speed, "PCIe"}; 886 break; 887 case PCI_DEVICE_ID_NEPTUNE_SCSP: 888 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"}; 889 break; 890 case PCI_DEVICE_ID_NEPTUNE_DCSP: 891 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"}; 892 break; 893 case PCI_DEVICE_ID_BMID: 894 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"}; 895 break; 896 case PCI_DEVICE_ID_BSMB: 897 m = (typeof(m)){"LP111", max_speed, "PCI-X2"}; 898 break; 899 case PCI_DEVICE_ID_ZEPHYR: 900 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 901 break; 902 case PCI_DEVICE_ID_ZEPHYR_SCSP: 903 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 904 break; 905 case PCI_DEVICE_ID_ZEPHYR_DCSP: 906 m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"}; 907 break; 908 case PCI_DEVICE_ID_ZMID: 909 m = (typeof(m)){"LPe1150", max_speed, "PCIe"}; 910 break; 911 case PCI_DEVICE_ID_ZSMB: 912 m = (typeof(m)){"LPe111", max_speed, "PCIe"}; 913 break; 914 case PCI_DEVICE_ID_LP101: 915 m = (typeof(m)){"LP101", max_speed, "PCI-X"}; 916 break; 917 case PCI_DEVICE_ID_LP10000S: 918 m = (typeof(m)){"LP10000-S", max_speed, "PCI"}; 919 break; 920 case PCI_DEVICE_ID_LP11000S: 921 m = (typeof(m)){"LP11000-S", max_speed, 922 "PCI-X2"}; 923 break; 924 case PCI_DEVICE_ID_LPE11000S: 925 m = (typeof(m)){"LPe11000-S", max_speed, 926 "PCIe"}; 927 break; 928 default: 929 m = (typeof(m)){ NULL }; 930 break; 931 } 932 933 if (mdp && mdp[0] == '\0') 934 snprintf(mdp, 79,"%s", m.name); 935 if (descp && descp[0] == '\0') 936 snprintf(descp, 255, 937 "Emulex %s %dGb %s Fibre Channel Adapter", 938 m.name, m.max_speed, m.bus); 939 } 940 941 /**************************************************/ 942 /* lpfc_post_buffer */ 943 /* */ 944 /* This routine will post count buffers to the */ 945 /* ring with the QUE_RING_BUF_CN command. This */ 946 /* allows 3 buffers / command to be posted. */ 947 /* Returns the number of buffers NOT posted. */ 948 /**************************************************/ 949 int 950 lpfc_post_buffer(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, int cnt, 951 int type) 952 { 953 IOCB_t *icmd; 954 struct lpfc_iocbq *iocb; 955 struct lpfc_dmabuf *mp1, *mp2; 956 957 cnt += pring->missbufcnt; 958 959 /* While there are buffers to post */ 960 while (cnt > 0) { 961 /* Allocate buffer for command iocb */ 962 spin_lock_irq(phba->host->host_lock); 963 iocb = lpfc_sli_get_iocbq(phba); 964 spin_unlock_irq(phba->host->host_lock); 965 if (iocb == NULL) { 966 pring->missbufcnt = cnt; 967 return cnt; 968 } 969 icmd = &iocb->iocb; 970 971 /* 2 buffers can be posted per command */ 972 /* Allocate buffer to post */ 973 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 974 if (mp1) 975 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 976 &mp1->phys); 977 if (mp1 == 0 || mp1->virt == 0) { 978 kfree(mp1); 979 spin_lock_irq(phba->host->host_lock); 980 lpfc_sli_release_iocbq(phba, iocb); 981 spin_unlock_irq(phba->host->host_lock); 982 pring->missbufcnt = cnt; 983 return cnt; 984 } 985 986 INIT_LIST_HEAD(&mp1->list); 987 /* Allocate buffer to post */ 988 if (cnt > 1) { 989 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 990 if (mp2) 991 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 992 &mp2->phys); 993 if (mp2 == 0 || mp2->virt == 0) { 994 kfree(mp2); 995 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 996 kfree(mp1); 997 spin_lock_irq(phba->host->host_lock); 998 lpfc_sli_release_iocbq(phba, iocb); 999 spin_unlock_irq(phba->host->host_lock); 1000 pring->missbufcnt = cnt; 1001 return cnt; 1002 } 1003 1004 INIT_LIST_HEAD(&mp2->list); 1005 } else { 1006 mp2 = NULL; 1007 } 1008 1009 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1010 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1011 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1012 icmd->ulpBdeCount = 1; 1013 cnt--; 1014 if (mp2) { 1015 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1016 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1017 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1018 cnt--; 1019 icmd->ulpBdeCount = 2; 1020 } 1021 1022 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1023 icmd->ulpLe = 1; 1024 1025 spin_lock_irq(phba->host->host_lock); 1026 if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) { 1027 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1028 kfree(mp1); 1029 cnt++; 1030 if (mp2) { 1031 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1032 kfree(mp2); 1033 cnt++; 1034 } 1035 lpfc_sli_release_iocbq(phba, iocb); 1036 pring->missbufcnt = cnt; 1037 spin_unlock_irq(phba->host->host_lock); 1038 return cnt; 1039 } 1040 spin_unlock_irq(phba->host->host_lock); 1041 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1042 if (mp2) { 1043 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1044 } 1045 } 1046 pring->missbufcnt = 0; 1047 return 0; 1048 } 1049 1050 /************************************************************************/ 1051 /* */ 1052 /* lpfc_post_rcv_buf */ 1053 /* This routine post initial rcv buffers to the configured rings */ 1054 /* */ 1055 /************************************************************************/ 1056 static int 1057 lpfc_post_rcv_buf(struct lpfc_hba * phba) 1058 { 1059 struct lpfc_sli *psli = &phba->sli; 1060 1061 /* Ring 0, ELS / CT buffers */ 1062 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0, 1); 1063 /* Ring 2 - FCP no buffers needed */ 1064 1065 return 0; 1066 } 1067 1068 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 1069 1070 /************************************************************************/ 1071 /* */ 1072 /* lpfc_sha_init */ 1073 /* */ 1074 /************************************************************************/ 1075 static void 1076 lpfc_sha_init(uint32_t * HashResultPointer) 1077 { 1078 HashResultPointer[0] = 0x67452301; 1079 HashResultPointer[1] = 0xEFCDAB89; 1080 HashResultPointer[2] = 0x98BADCFE; 1081 HashResultPointer[3] = 0x10325476; 1082 HashResultPointer[4] = 0xC3D2E1F0; 1083 } 1084 1085 /************************************************************************/ 1086 /* */ 1087 /* lpfc_sha_iterate */ 1088 /* */ 1089 /************************************************************************/ 1090 static void 1091 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 1092 { 1093 int t; 1094 uint32_t TEMP; 1095 uint32_t A, B, C, D, E; 1096 t = 16; 1097 do { 1098 HashWorkingPointer[t] = 1099 S(1, 1100 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 1101 8] ^ 1102 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 1103 } while (++t <= 79); 1104 t = 0; 1105 A = HashResultPointer[0]; 1106 B = HashResultPointer[1]; 1107 C = HashResultPointer[2]; 1108 D = HashResultPointer[3]; 1109 E = HashResultPointer[4]; 1110 1111 do { 1112 if (t < 20) { 1113 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 1114 } else if (t < 40) { 1115 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 1116 } else if (t < 60) { 1117 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 1118 } else { 1119 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 1120 } 1121 TEMP += S(5, A) + E + HashWorkingPointer[t]; 1122 E = D; 1123 D = C; 1124 C = S(30, B); 1125 B = A; 1126 A = TEMP; 1127 } while (++t <= 79); 1128 1129 HashResultPointer[0] += A; 1130 HashResultPointer[1] += B; 1131 HashResultPointer[2] += C; 1132 HashResultPointer[3] += D; 1133 HashResultPointer[4] += E; 1134 1135 } 1136 1137 /************************************************************************/ 1138 /* */ 1139 /* lpfc_challenge_key */ 1140 /* */ 1141 /************************************************************************/ 1142 static void 1143 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 1144 { 1145 *HashWorking = (*RandomChallenge ^ *HashWorking); 1146 } 1147 1148 /************************************************************************/ 1149 /* */ 1150 /* lpfc_hba_init */ 1151 /* */ 1152 /************************************************************************/ 1153 void 1154 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 1155 { 1156 int t; 1157 uint32_t *HashWorking; 1158 uint32_t *pwwnn = phba->wwnn; 1159 1160 HashWorking = kmalloc(80 * sizeof(uint32_t), GFP_KERNEL); 1161 if (!HashWorking) 1162 return; 1163 1164 memset(HashWorking, 0, (80 * sizeof(uint32_t))); 1165 HashWorking[0] = HashWorking[78] = *pwwnn++; 1166 HashWorking[1] = HashWorking[79] = *pwwnn; 1167 1168 for (t = 0; t < 7; t++) 1169 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 1170 1171 lpfc_sha_init(hbainit); 1172 lpfc_sha_iterate(hbainit, HashWorking); 1173 kfree(HashWorking); 1174 } 1175 1176 static void 1177 lpfc_cleanup(struct lpfc_hba * phba, uint32_t save_bind) 1178 { 1179 struct lpfc_nodelist *ndlp, *next_ndlp; 1180 1181 /* clean up phba - lpfc specific */ 1182 lpfc_can_disctmo(phba); 1183 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpunmap_list, 1184 nlp_listp) { 1185 lpfc_nlp_remove(phba, ndlp); 1186 } 1187 1188 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list, 1189 nlp_listp) { 1190 lpfc_nlp_remove(phba, ndlp); 1191 } 1192 1193 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list, 1194 nlp_listp) { 1195 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST); 1196 } 1197 1198 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list, 1199 nlp_listp) { 1200 lpfc_nlp_remove(phba, ndlp); 1201 } 1202 1203 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list, 1204 nlp_listp) { 1205 lpfc_nlp_remove(phba, ndlp); 1206 } 1207 1208 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_reglogin_list, 1209 nlp_listp) { 1210 lpfc_nlp_remove(phba, ndlp); 1211 } 1212 1213 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list, 1214 nlp_listp) { 1215 lpfc_nlp_remove(phba, ndlp); 1216 } 1217 1218 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list, 1219 nlp_listp) { 1220 lpfc_nlp_remove(phba, ndlp); 1221 } 1222 1223 INIT_LIST_HEAD(&phba->fc_nlpmap_list); 1224 INIT_LIST_HEAD(&phba->fc_nlpunmap_list); 1225 INIT_LIST_HEAD(&phba->fc_unused_list); 1226 INIT_LIST_HEAD(&phba->fc_plogi_list); 1227 INIT_LIST_HEAD(&phba->fc_adisc_list); 1228 INIT_LIST_HEAD(&phba->fc_reglogin_list); 1229 INIT_LIST_HEAD(&phba->fc_prli_list); 1230 INIT_LIST_HEAD(&phba->fc_npr_list); 1231 1232 phba->fc_map_cnt = 0; 1233 phba->fc_unmap_cnt = 0; 1234 phba->fc_plogi_cnt = 0; 1235 phba->fc_adisc_cnt = 0; 1236 phba->fc_reglogin_cnt = 0; 1237 phba->fc_prli_cnt = 0; 1238 phba->fc_npr_cnt = 0; 1239 phba->fc_unused_cnt= 0; 1240 return; 1241 } 1242 1243 static void 1244 lpfc_establish_link_tmo(unsigned long ptr) 1245 { 1246 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 1247 unsigned long iflag; 1248 1249 1250 /* Re-establishing Link, timer expired */ 1251 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 1252 "%d:1300 Re-establishing Link, timer expired " 1253 "Data: x%x x%x\n", 1254 phba->brd_no, phba->fc_flag, phba->hba_state); 1255 spin_lock_irqsave(phba->host->host_lock, iflag); 1256 phba->fc_flag &= ~FC_ESTABLISH_LINK; 1257 spin_unlock_irqrestore(phba->host->host_lock, iflag); 1258 } 1259 1260 static int 1261 lpfc_stop_timer(struct lpfc_hba * phba) 1262 { 1263 struct lpfc_sli *psli = &phba->sli; 1264 1265 /* Instead of a timer, this has been converted to a 1266 * deferred procedding list. 1267 */ 1268 while (!list_empty(&phba->freebufList)) { 1269 1270 struct lpfc_dmabuf *mp = NULL; 1271 1272 list_remove_head((&phba->freebufList), mp, 1273 struct lpfc_dmabuf, list); 1274 if (mp) { 1275 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1276 kfree(mp); 1277 } 1278 } 1279 1280 del_timer_sync(&phba->fcp_poll_timer); 1281 del_timer_sync(&phba->fc_estabtmo); 1282 del_timer_sync(&phba->fc_disctmo); 1283 del_timer_sync(&phba->fc_fdmitmo); 1284 del_timer_sync(&phba->els_tmofunc); 1285 psli = &phba->sli; 1286 del_timer_sync(&psli->mbox_tmo); 1287 return(1); 1288 } 1289 1290 int 1291 lpfc_online(struct lpfc_hba * phba) 1292 { 1293 if (!phba) 1294 return 0; 1295 1296 if (!(phba->fc_flag & FC_OFFLINE_MODE)) 1297 return 0; 1298 1299 lpfc_printf_log(phba, 1300 KERN_WARNING, 1301 LOG_INIT, 1302 "%d:0458 Bring Adapter online\n", 1303 phba->brd_no); 1304 1305 if (!lpfc_sli_queue_setup(phba)) 1306 return 1; 1307 1308 if (lpfc_sli_hba_setup(phba)) /* Initialize the HBA */ 1309 return 1; 1310 1311 spin_lock_irq(phba->host->host_lock); 1312 phba->fc_flag &= ~FC_OFFLINE_MODE; 1313 spin_unlock_irq(phba->host->host_lock); 1314 1315 return 0; 1316 } 1317 1318 int 1319 lpfc_offline(struct lpfc_hba * phba) 1320 { 1321 struct lpfc_sli_ring *pring; 1322 struct lpfc_sli *psli; 1323 unsigned long iflag; 1324 int i; 1325 int cnt = 0; 1326 1327 if (!phba) 1328 return 0; 1329 1330 if (phba->fc_flag & FC_OFFLINE_MODE) 1331 return 0; 1332 1333 psli = &phba->sli; 1334 1335 lpfc_linkdown(phba); 1336 lpfc_sli_flush_mbox_queue(phba); 1337 1338 for (i = 0; i < psli->num_rings; i++) { 1339 pring = &psli->ring[i]; 1340 /* The linkdown event takes 30 seconds to timeout. */ 1341 while (pring->txcmplq_cnt) { 1342 mdelay(10); 1343 if (cnt++ > 3000) { 1344 lpfc_printf_log(phba, 1345 KERN_WARNING, LOG_INIT, 1346 "%d:0466 Outstanding IO when " 1347 "bringing Adapter offline\n", 1348 phba->brd_no); 1349 break; 1350 } 1351 } 1352 } 1353 1354 1355 /* stop all timers associated with this hba */ 1356 lpfc_stop_timer(phba); 1357 phba->work_hba_events = 0; 1358 phba->work_ha = 0; 1359 1360 lpfc_printf_log(phba, 1361 KERN_WARNING, 1362 LOG_INIT, 1363 "%d:0460 Bring Adapter offline\n", 1364 phba->brd_no); 1365 1366 /* Bring down the SLI Layer and cleanup. The HBA is offline 1367 now. */ 1368 lpfc_sli_hba_down(phba); 1369 lpfc_cleanup(phba, 1); 1370 spin_lock_irqsave(phba->host->host_lock, iflag); 1371 phba->fc_flag |= FC_OFFLINE_MODE; 1372 spin_unlock_irqrestore(phba->host->host_lock, iflag); 1373 return 0; 1374 } 1375 1376 /****************************************************************************** 1377 * Function name: lpfc_scsi_free 1378 * 1379 * Description: Called from lpfc_pci_remove_one free internal driver resources 1380 * 1381 ******************************************************************************/ 1382 static int 1383 lpfc_scsi_free(struct lpfc_hba * phba) 1384 { 1385 struct lpfc_scsi_buf *sb, *sb_next; 1386 struct lpfc_iocbq *io, *io_next; 1387 1388 spin_lock_irq(phba->host->host_lock); 1389 /* Release all the lpfc_scsi_bufs maintained by this host. */ 1390 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 1391 list_del(&sb->list); 1392 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 1393 sb->dma_handle); 1394 kfree(sb); 1395 phba->total_scsi_bufs--; 1396 } 1397 1398 /* Release all the lpfc_iocbq entries maintained by this host. */ 1399 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 1400 list_del(&io->list); 1401 kfree(io); 1402 phba->total_iocbq_bufs--; 1403 } 1404 1405 spin_unlock_irq(phba->host->host_lock); 1406 1407 return 0; 1408 } 1409 1410 1411 static int __devinit 1412 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 1413 { 1414 struct Scsi_Host *host; 1415 struct lpfc_hba *phba; 1416 struct lpfc_sli *psli; 1417 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 1418 unsigned long bar0map_len, bar2map_len; 1419 int error = -ENODEV, retval; 1420 int i; 1421 uint16_t iotag; 1422 1423 if (pci_enable_device(pdev)) 1424 goto out; 1425 if (pci_request_regions(pdev, LPFC_DRIVER_NAME)) 1426 goto out_disable_device; 1427 1428 host = scsi_host_alloc(&lpfc_template, sizeof (struct lpfc_hba)); 1429 if (!host) 1430 goto out_release_regions; 1431 1432 phba = (struct lpfc_hba*)host->hostdata; 1433 memset(phba, 0, sizeof (struct lpfc_hba)); 1434 phba->host = host; 1435 1436 phba->fc_flag |= FC_LOADING; 1437 phba->pcidev = pdev; 1438 1439 /* Assign an unused board number */ 1440 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 1441 goto out_put_host; 1442 1443 error = idr_get_new(&lpfc_hba_index, NULL, &phba->brd_no); 1444 if (error) 1445 goto out_put_host; 1446 1447 host->unique_id = phba->brd_no; 1448 INIT_LIST_HEAD(&phba->ctrspbuflist); 1449 INIT_LIST_HEAD(&phba->rnidrspbuflist); 1450 INIT_LIST_HEAD(&phba->freebufList); 1451 1452 /* Initialize timers used by driver */ 1453 init_timer(&phba->fc_estabtmo); 1454 phba->fc_estabtmo.function = lpfc_establish_link_tmo; 1455 phba->fc_estabtmo.data = (unsigned long)phba; 1456 init_timer(&phba->fc_disctmo); 1457 phba->fc_disctmo.function = lpfc_disc_timeout; 1458 phba->fc_disctmo.data = (unsigned long)phba; 1459 1460 init_timer(&phba->fc_fdmitmo); 1461 phba->fc_fdmitmo.function = lpfc_fdmi_tmo; 1462 phba->fc_fdmitmo.data = (unsigned long)phba; 1463 init_timer(&phba->els_tmofunc); 1464 phba->els_tmofunc.function = lpfc_els_timeout; 1465 phba->els_tmofunc.data = (unsigned long)phba; 1466 psli = &phba->sli; 1467 init_timer(&psli->mbox_tmo); 1468 psli->mbox_tmo.function = lpfc_mbox_timeout; 1469 psli->mbox_tmo.data = (unsigned long)phba; 1470 1471 init_timer(&phba->fcp_poll_timer); 1472 phba->fcp_poll_timer.function = lpfc_poll_timeout; 1473 phba->fcp_poll_timer.data = (unsigned long)phba; 1474 1475 /* 1476 * Get all the module params for configuring this host and then 1477 * establish the host parameters. 1478 */ 1479 lpfc_get_cfgparam(phba); 1480 1481 host->max_id = LPFC_MAX_TARGET; 1482 host->max_lun = phba->cfg_max_luns; 1483 host->this_id = -1; 1484 1485 /* Initialize all internally managed lists. */ 1486 INIT_LIST_HEAD(&phba->fc_nlpmap_list); 1487 INIT_LIST_HEAD(&phba->fc_nlpunmap_list); 1488 INIT_LIST_HEAD(&phba->fc_unused_list); 1489 INIT_LIST_HEAD(&phba->fc_plogi_list); 1490 INIT_LIST_HEAD(&phba->fc_adisc_list); 1491 INIT_LIST_HEAD(&phba->fc_reglogin_list); 1492 INIT_LIST_HEAD(&phba->fc_prli_list); 1493 INIT_LIST_HEAD(&phba->fc_npr_list); 1494 1495 1496 pci_set_master(pdev); 1497 retval = pci_set_mwi(pdev); 1498 if (retval) 1499 dev_printk(KERN_WARNING, &pdev->dev, 1500 "Warning: pci_set_mwi returned %d\n", retval); 1501 1502 if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0) 1503 if (pci_set_dma_mask(phba->pcidev, DMA_32BIT_MASK) != 0) 1504 goto out_idr_remove; 1505 1506 /* 1507 * Get the bus address of Bar0 and Bar2 and the number of bytes 1508 * required by each mapping. 1509 */ 1510 phba->pci_bar0_map = pci_resource_start(phba->pcidev, 0); 1511 bar0map_len = pci_resource_len(phba->pcidev, 0); 1512 1513 phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2); 1514 bar2map_len = pci_resource_len(phba->pcidev, 2); 1515 1516 /* Map HBA SLIM to a kernel virtual address. */ 1517 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 1518 if (!phba->slim_memmap_p) { 1519 error = -ENODEV; 1520 dev_printk(KERN_ERR, &pdev->dev, 1521 "ioremap failed for SLIM memory.\n"); 1522 goto out_idr_remove; 1523 } 1524 1525 /* Map HBA Control Registers to a kernel virtual address. */ 1526 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 1527 if (!phba->ctrl_regs_memmap_p) { 1528 error = -ENODEV; 1529 dev_printk(KERN_ERR, &pdev->dev, 1530 "ioremap failed for HBA control registers.\n"); 1531 goto out_iounmap_slim; 1532 } 1533 1534 /* Allocate memory for SLI-2 structures */ 1535 phba->slim2p = dma_alloc_coherent(&phba->pcidev->dev, SLI2_SLIM_SIZE, 1536 &phba->slim2p_mapping, GFP_KERNEL); 1537 if (!phba->slim2p) 1538 goto out_iounmap; 1539 1540 memset(phba->slim2p, 0, SLI2_SLIM_SIZE); 1541 1542 /* Initialize the SLI Layer to run with lpfc HBAs. */ 1543 lpfc_sli_setup(phba); 1544 lpfc_sli_queue_setup(phba); 1545 1546 error = lpfc_mem_alloc(phba); 1547 if (error) 1548 goto out_free_slim; 1549 1550 /* Initialize and populate the iocb list per host. */ 1551 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 1552 for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) { 1553 iocbq_entry = kmalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 1554 if (iocbq_entry == NULL) { 1555 printk(KERN_ERR "%s: only allocated %d iocbs of " 1556 "expected %d count. Unloading driver.\n", 1557 __FUNCTION__, i, LPFC_IOCB_LIST_CNT); 1558 error = -ENOMEM; 1559 goto out_free_iocbq; 1560 } 1561 1562 memset(iocbq_entry, 0, sizeof(struct lpfc_iocbq)); 1563 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 1564 if (iotag == 0) { 1565 kfree (iocbq_entry); 1566 printk(KERN_ERR "%s: failed to allocate IOTAG. " 1567 "Unloading driver.\n", 1568 __FUNCTION__); 1569 error = -ENOMEM; 1570 goto out_free_iocbq; 1571 } 1572 spin_lock_irq(phba->host->host_lock); 1573 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 1574 phba->total_iocbq_bufs++; 1575 spin_unlock_irq(phba->host->host_lock); 1576 } 1577 1578 /* Initialize HBA structure */ 1579 phba->fc_edtov = FF_DEF_EDTOV; 1580 phba->fc_ratov = FF_DEF_RATOV; 1581 phba->fc_altov = FF_DEF_ALTOV; 1582 phba->fc_arbtov = FF_DEF_ARBTOV; 1583 1584 INIT_LIST_HEAD(&phba->work_list); 1585 phba->work_ha_mask = (HA_ERATT|HA_MBATT|HA_LATT); 1586 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 1587 1588 /* Startup the kernel thread for this host adapter. */ 1589 phba->worker_thread = kthread_run(lpfc_do_work, phba, 1590 "lpfc_worker_%d", phba->brd_no); 1591 if (IS_ERR(phba->worker_thread)) { 1592 error = PTR_ERR(phba->worker_thread); 1593 goto out_free_iocbq; 1594 } 1595 1596 /* 1597 * Set initial can_queue value since 0 is no longer supported and 1598 * scsi_add_host will fail. This will be adjusted later based on the 1599 * max xri value determined in hba setup. 1600 */ 1601 host->can_queue = phba->cfg_hba_queue_depth - 10; 1602 1603 /* Tell the midlayer we support 16 byte commands */ 1604 host->max_cmd_len = 16; 1605 1606 /* Initialize the list of scsi buffers used by driver for scsi IO. */ 1607 spin_lock_init(&phba->scsi_buf_list_lock); 1608 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 1609 1610 host->transportt = lpfc_transport_template; 1611 pci_set_drvdata(pdev, host); 1612 error = scsi_add_host(host, &pdev->dev); 1613 if (error) 1614 goto out_kthread_stop; 1615 1616 error = lpfc_alloc_sysfs_attr(phba); 1617 if (error) 1618 goto out_remove_host; 1619 1620 if (phba->cfg_use_msi) { 1621 error = pci_enable_msi(phba->pcidev); 1622 if (error) 1623 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "%d:0452 " 1624 "Enable MSI failed, continuing with " 1625 "IRQ\n", phba->brd_no); 1626 } 1627 1628 error = request_irq(phba->pcidev->irq, lpfc_intr_handler, IRQF_SHARED, 1629 LPFC_DRIVER_NAME, phba); 1630 if (error) { 1631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1632 "%d:0451 Enable interrupt handler failed\n", 1633 phba->brd_no); 1634 goto out_free_sysfs_attr; 1635 } 1636 phba->MBslimaddr = phba->slim_memmap_p; 1637 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 1638 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 1639 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 1640 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 1641 1642 error = lpfc_sli_hba_setup(phba); 1643 if (error) { 1644 error = -ENODEV; 1645 goto out_free_irq; 1646 } 1647 1648 /* 1649 * hba setup may have changed the hba_queue_depth so we need to adjust 1650 * the value of can_queue. 1651 */ 1652 host->can_queue = phba->cfg_hba_queue_depth - 10; 1653 1654 lpfc_discovery_wait(phba); 1655 1656 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 1657 spin_lock_irq(phba->host->host_lock); 1658 lpfc_poll_start_timer(phba); 1659 spin_unlock_irq(phba->host->host_lock); 1660 } 1661 1662 /* 1663 * set fixed host attributes 1664 * Must done after lpfc_sli_hba_setup() 1665 */ 1666 1667 fc_host_node_name(host) = wwn_to_u64(phba->fc_nodename.u.wwn); 1668 fc_host_port_name(host) = wwn_to_u64(phba->fc_portname.u.wwn); 1669 fc_host_supported_classes(host) = FC_COS_CLASS3; 1670 1671 memset(fc_host_supported_fc4s(host), 0, 1672 sizeof(fc_host_supported_fc4s(host))); 1673 fc_host_supported_fc4s(host)[2] = 1; 1674 fc_host_supported_fc4s(host)[7] = 1; 1675 1676 lpfc_get_hba_sym_node_name(phba, fc_host_symbolic_name(host)); 1677 1678 fc_host_supported_speeds(host) = 0; 1679 if (phba->lmt & LMT_10Gb) 1680 fc_host_supported_speeds(host) |= FC_PORTSPEED_10GBIT; 1681 if (phba->lmt & LMT_4Gb) 1682 fc_host_supported_speeds(host) |= FC_PORTSPEED_4GBIT; 1683 if (phba->lmt & LMT_2Gb) 1684 fc_host_supported_speeds(host) |= FC_PORTSPEED_2GBIT; 1685 if (phba->lmt & LMT_1Gb) 1686 fc_host_supported_speeds(host) |= FC_PORTSPEED_1GBIT; 1687 1688 fc_host_maxframe_size(host) = 1689 ((((uint32_t) phba->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 1690 (uint32_t) phba->fc_sparam.cmn.bbRcvSizeLsb); 1691 1692 /* This value is also unchanging */ 1693 memset(fc_host_active_fc4s(host), 0, 1694 sizeof(fc_host_active_fc4s(host))); 1695 fc_host_active_fc4s(host)[2] = 1; 1696 fc_host_active_fc4s(host)[7] = 1; 1697 1698 spin_lock_irq(phba->host->host_lock); 1699 phba->fc_flag &= ~FC_LOADING; 1700 spin_unlock_irq(phba->host->host_lock); 1701 return 0; 1702 1703 out_free_irq: 1704 lpfc_stop_timer(phba); 1705 phba->work_hba_events = 0; 1706 free_irq(phba->pcidev->irq, phba); 1707 pci_disable_msi(phba->pcidev); 1708 out_free_sysfs_attr: 1709 lpfc_free_sysfs_attr(phba); 1710 out_remove_host: 1711 fc_remove_host(phba->host); 1712 scsi_remove_host(phba->host); 1713 out_kthread_stop: 1714 kthread_stop(phba->worker_thread); 1715 out_free_iocbq: 1716 list_for_each_entry_safe(iocbq_entry, iocbq_next, 1717 &phba->lpfc_iocb_list, list) { 1718 spin_lock_irq(phba->host->host_lock); 1719 kfree(iocbq_entry); 1720 phba->total_iocbq_bufs--; 1721 spin_unlock_irq(phba->host->host_lock); 1722 } 1723 lpfc_mem_free(phba); 1724 out_free_slim: 1725 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, phba->slim2p, 1726 phba->slim2p_mapping); 1727 out_iounmap: 1728 iounmap(phba->ctrl_regs_memmap_p); 1729 out_iounmap_slim: 1730 iounmap(phba->slim_memmap_p); 1731 out_idr_remove: 1732 idr_remove(&lpfc_hba_index, phba->brd_no); 1733 out_put_host: 1734 phba->host = NULL; 1735 scsi_host_put(host); 1736 out_release_regions: 1737 pci_release_regions(pdev); 1738 out_disable_device: 1739 pci_disable_device(pdev); 1740 out: 1741 pci_set_drvdata(pdev, NULL); 1742 return error; 1743 } 1744 1745 static void __devexit 1746 lpfc_pci_remove_one(struct pci_dev *pdev) 1747 { 1748 struct Scsi_Host *host = pci_get_drvdata(pdev); 1749 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata; 1750 unsigned long iflag; 1751 1752 lpfc_free_sysfs_attr(phba); 1753 1754 spin_lock_irqsave(phba->host->host_lock, iflag); 1755 phba->fc_flag |= FC_UNLOADING; 1756 1757 spin_unlock_irqrestore(phba->host->host_lock, iflag); 1758 1759 fc_remove_host(phba->host); 1760 scsi_remove_host(phba->host); 1761 1762 kthread_stop(phba->worker_thread); 1763 1764 /* 1765 * Bring down the SLI Layer. This step disable all interrupts, 1766 * clears the rings, discards all mailbox commands, and resets 1767 * the HBA. 1768 */ 1769 lpfc_sli_hba_down(phba); 1770 lpfc_sli_brdrestart(phba); 1771 1772 /* Release the irq reservation */ 1773 free_irq(phba->pcidev->irq, phba); 1774 pci_disable_msi(phba->pcidev); 1775 1776 lpfc_cleanup(phba, 0); 1777 lpfc_stop_timer(phba); 1778 phba->work_hba_events = 0; 1779 1780 /* 1781 * Call scsi_free before mem_free since scsi bufs are released to their 1782 * corresponding pools here. 1783 */ 1784 lpfc_scsi_free(phba); 1785 lpfc_mem_free(phba); 1786 1787 /* Free resources associated with SLI2 interface */ 1788 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 1789 phba->slim2p, phba->slim2p_mapping); 1790 1791 /* unmap adapter SLIM and Control Registers */ 1792 iounmap(phba->ctrl_regs_memmap_p); 1793 iounmap(phba->slim_memmap_p); 1794 1795 pci_release_regions(phba->pcidev); 1796 pci_disable_device(phba->pcidev); 1797 1798 idr_remove(&lpfc_hba_index, phba->brd_no); 1799 scsi_host_put(phba->host); 1800 1801 pci_set_drvdata(pdev, NULL); 1802 } 1803 1804 /** 1805 * lpfc_io_error_detected - called when PCI error is detected 1806 * @pdev: Pointer to PCI device 1807 * @state: The current pci conneection state 1808 * 1809 * This function is called after a PCI bus error affecting 1810 * this device has been detected. 1811 */ 1812 static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev, 1813 pci_channel_state_t state) 1814 { 1815 struct Scsi_Host *host = pci_get_drvdata(pdev); 1816 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata; 1817 struct lpfc_sli *psli = &phba->sli; 1818 struct lpfc_sli_ring *pring; 1819 1820 if (state == pci_channel_io_perm_failure) { 1821 lpfc_pci_remove_one(pdev); 1822 return PCI_ERS_RESULT_DISCONNECT; 1823 } 1824 pci_disable_device(pdev); 1825 /* 1826 * There may be I/Os dropped by the firmware. 1827 * Error iocb (I/O) on txcmplq and let the SCSI layer 1828 * retry it after re-establishing link. 1829 */ 1830 pring = &psli->ring[psli->fcp_ring]; 1831 lpfc_sli_abort_iocb_ring(phba, pring); 1832 1833 /* Request a slot reset. */ 1834 return PCI_ERS_RESULT_NEED_RESET; 1835 } 1836 1837 /** 1838 * lpfc_io_slot_reset - called after the pci bus has been reset. 1839 * @pdev: Pointer to PCI device 1840 * 1841 * Restart the card from scratch, as if from a cold-boot. 1842 */ 1843 static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev) 1844 { 1845 struct Scsi_Host *host = pci_get_drvdata(pdev); 1846 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata; 1847 struct lpfc_sli *psli = &phba->sli; 1848 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 1849 1850 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 1851 if (pci_enable_device_bars(pdev, bars)) { 1852 printk(KERN_ERR "lpfc: Cannot re-enable " 1853 "PCI device after reset.\n"); 1854 return PCI_ERS_RESULT_DISCONNECT; 1855 } 1856 1857 pci_set_master(pdev); 1858 1859 /* Re-establishing Link */ 1860 spin_lock_irq(phba->host->host_lock); 1861 phba->fc_flag |= FC_ESTABLISH_LINK; 1862 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 1863 spin_unlock_irq(phba->host->host_lock); 1864 1865 1866 /* Take device offline; this will perform cleanup */ 1867 lpfc_offline(phba); 1868 lpfc_sli_brdrestart(phba); 1869 1870 return PCI_ERS_RESULT_RECOVERED; 1871 } 1872 1873 /** 1874 * lpfc_io_resume - called when traffic can start flowing again. 1875 * @pdev: Pointer to PCI device 1876 * 1877 * This callback is called when the error recovery driver tells us that 1878 * its OK to resume normal operation. 1879 */ 1880 static void lpfc_io_resume(struct pci_dev *pdev) 1881 { 1882 struct Scsi_Host *host = pci_get_drvdata(pdev); 1883 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata; 1884 1885 if (lpfc_online(phba) == 0) { 1886 mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60); 1887 } 1888 } 1889 1890 static struct pci_device_id lpfc_id_table[] = { 1891 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 1892 PCI_ANY_ID, PCI_ANY_ID, }, 1893 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 1894 PCI_ANY_ID, PCI_ANY_ID, }, 1895 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 1896 PCI_ANY_ID, PCI_ANY_ID, }, 1897 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 1898 PCI_ANY_ID, PCI_ANY_ID, }, 1899 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 1900 PCI_ANY_ID, PCI_ANY_ID, }, 1901 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 1902 PCI_ANY_ID, PCI_ANY_ID, }, 1903 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 1904 PCI_ANY_ID, PCI_ANY_ID, }, 1905 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 1906 PCI_ANY_ID, PCI_ANY_ID, }, 1907 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 1908 PCI_ANY_ID, PCI_ANY_ID, }, 1909 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 1910 PCI_ANY_ID, PCI_ANY_ID, }, 1911 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 1912 PCI_ANY_ID, PCI_ANY_ID, }, 1913 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 1914 PCI_ANY_ID, PCI_ANY_ID, }, 1915 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 1916 PCI_ANY_ID, PCI_ANY_ID, }, 1917 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 1918 PCI_ANY_ID, PCI_ANY_ID, }, 1919 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 1920 PCI_ANY_ID, PCI_ANY_ID, }, 1921 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 1922 PCI_ANY_ID, PCI_ANY_ID, }, 1923 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 1924 PCI_ANY_ID, PCI_ANY_ID, }, 1925 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 1926 PCI_ANY_ID, PCI_ANY_ID, }, 1927 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 1928 PCI_ANY_ID, PCI_ANY_ID, }, 1929 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 1930 PCI_ANY_ID, PCI_ANY_ID, }, 1931 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 1932 PCI_ANY_ID, PCI_ANY_ID, }, 1933 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 1934 PCI_ANY_ID, PCI_ANY_ID, }, 1935 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 1936 PCI_ANY_ID, PCI_ANY_ID, }, 1937 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 1938 PCI_ANY_ID, PCI_ANY_ID, }, 1939 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 1940 PCI_ANY_ID, PCI_ANY_ID, }, 1941 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 1942 PCI_ANY_ID, PCI_ANY_ID, }, 1943 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 1944 PCI_ANY_ID, PCI_ANY_ID, }, 1945 { 0 } 1946 }; 1947 1948 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 1949 1950 static struct pci_error_handlers lpfc_err_handler = { 1951 .error_detected = lpfc_io_error_detected, 1952 .slot_reset = lpfc_io_slot_reset, 1953 .resume = lpfc_io_resume, 1954 }; 1955 1956 static struct pci_driver lpfc_driver = { 1957 .name = LPFC_DRIVER_NAME, 1958 .id_table = lpfc_id_table, 1959 .probe = lpfc_pci_probe_one, 1960 .remove = __devexit_p(lpfc_pci_remove_one), 1961 .err_handler = &lpfc_err_handler, 1962 }; 1963 1964 static int __init 1965 lpfc_init(void) 1966 { 1967 int error = 0; 1968 1969 printk(LPFC_MODULE_DESC "\n"); 1970 printk(LPFC_COPYRIGHT "\n"); 1971 1972 lpfc_transport_template = 1973 fc_attach_transport(&lpfc_transport_functions); 1974 if (!lpfc_transport_template) 1975 return -ENOMEM; 1976 error = pci_register_driver(&lpfc_driver); 1977 if (error) 1978 fc_release_transport(lpfc_transport_template); 1979 1980 return error; 1981 } 1982 1983 static void __exit 1984 lpfc_exit(void) 1985 { 1986 pci_unregister_driver(&lpfc_driver); 1987 fc_release_transport(lpfc_transport_template); 1988 } 1989 1990 module_init(lpfc_init); 1991 module_exit(lpfc_exit); 1992 MODULE_LICENSE("GPL"); 1993 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 1994 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 1995 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 1996