1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2007 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 mod_timer(&phba->els_tmofunc, jiffies + HZ * timeout); 390 391 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed); 392 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 393 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 394 lpfc_set_loopback_flag(phba); 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 /************************************************************************/ 422 /* */ 423 /* lpfc_hba_down_prep */ 424 /* This routine will do LPFC uninitialization before the */ 425 /* HBA is reset when bringing down the SLI Layer. This will be */ 426 /* initialized as a SLI layer callback routine. */ 427 /* This routine returns 0 on success. Any other return value */ 428 /* indicates an error. */ 429 /* */ 430 /************************************************************************/ 431 int 432 lpfc_hba_down_prep(struct lpfc_hba * phba) 433 { 434 /* Disable interrupts */ 435 writel(0, phba->HCregaddr); 436 readl(phba->HCregaddr); /* flush */ 437 438 /* Cleanup potential discovery resources */ 439 lpfc_els_flush_rscn(phba); 440 lpfc_els_flush_cmd(phba); 441 lpfc_disc_flush_list(phba); 442 443 return (0); 444 } 445 446 /************************************************************************/ 447 /* */ 448 /* lpfc_hba_down_post */ 449 /* This routine will do uninitialization after the HBA is reset */ 450 /* when bringing down the SLI Layer. */ 451 /* This routine returns 0 on success. Any other return value */ 452 /* indicates an error. */ 453 /* */ 454 /************************************************************************/ 455 int 456 lpfc_hba_down_post(struct lpfc_hba * phba) 457 { 458 struct lpfc_sli *psli = &phba->sli; 459 struct lpfc_sli_ring *pring; 460 struct lpfc_dmabuf *mp, *next_mp; 461 int i; 462 463 /* Cleanup preposted buffers on the ELS ring */ 464 pring = &psli->ring[LPFC_ELS_RING]; 465 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 466 list_del(&mp->list); 467 pring->postbufq_cnt--; 468 lpfc_mbuf_free(phba, mp->virt, mp->phys); 469 kfree(mp); 470 } 471 472 for (i = 0; i < psli->num_rings; i++) { 473 pring = &psli->ring[i]; 474 lpfc_sli_abort_iocb_ring(phba, pring); 475 } 476 477 return 0; 478 } 479 480 /************************************************************************/ 481 /* */ 482 /* lpfc_handle_eratt */ 483 /* This routine will handle processing a Host Attention */ 484 /* Error Status event. This will be initialized */ 485 /* as a SLI layer callback routine. */ 486 /* */ 487 /************************************************************************/ 488 void 489 lpfc_handle_eratt(struct lpfc_hba * phba) 490 { 491 struct lpfc_sli *psli = &phba->sli; 492 struct lpfc_sli_ring *pring; 493 uint32_t event_data; 494 /* If the pci channel is offline, ignore possible errors, 495 * since we cannot communicate with the pci card anyway. */ 496 if (pci_channel_offline(phba->pcidev)) 497 return; 498 499 if (phba->work_hs & HS_FFER6 || 500 phba->work_hs & HS_FFER5) { 501 /* Re-establishing Link */ 502 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 503 "%d:1301 Re-establishing Link " 504 "Data: x%x x%x x%x\n", 505 phba->brd_no, phba->work_hs, 506 phba->work_status[0], phba->work_status[1]); 507 spin_lock_irq(phba->host->host_lock); 508 phba->fc_flag |= FC_ESTABLISH_LINK; 509 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 510 spin_unlock_irq(phba->host->host_lock); 511 512 /* 513 * Firmware stops when it triggled erratt with HS_FFER6. 514 * That could cause the I/Os dropped by the firmware. 515 * Error iocb (I/O) on txcmplq and let the SCSI layer 516 * retry it after re-establishing link. 517 */ 518 pring = &psli->ring[psli->fcp_ring]; 519 lpfc_sli_abort_iocb_ring(phba, pring); 520 521 522 /* 523 * There was a firmware error. Take the hba offline and then 524 * attempt to restart it. 525 */ 526 lpfc_offline_prep(phba); 527 lpfc_offline(phba); 528 lpfc_sli_brdrestart(phba); 529 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 530 mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60); 531 lpfc_unblock_mgmt_io(phba); 532 return; 533 } 534 lpfc_unblock_mgmt_io(phba); 535 } else { 536 /* The if clause above forces this code path when the status 537 * failure is a value other than FFER6. Do not call the offline 538 * twice. This is the adapter hardware error path. 539 */ 540 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 541 "%d:0457 Adapter Hardware Error " 542 "Data: x%x x%x x%x\n", 543 phba->brd_no, phba->work_hs, 544 phba->work_status[0], phba->work_status[1]); 545 546 event_data = FC_REG_DUMP_EVENT; 547 fc_host_post_vendor_event(phba->host, fc_get_event_number(), 548 sizeof(event_data), (char *) &event_data, 549 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 550 551 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 552 lpfc_offline_prep(phba); 553 lpfc_offline(phba); 554 lpfc_unblock_mgmt_io(phba); 555 phba->hba_state = LPFC_HBA_ERROR; 556 lpfc_hba_down_post(phba); 557 } 558 } 559 560 /************************************************************************/ 561 /* */ 562 /* lpfc_handle_latt */ 563 /* This routine will handle processing a Host Attention */ 564 /* Link Status event. This will be initialized */ 565 /* as a SLI layer callback routine. */ 566 /* */ 567 /************************************************************************/ 568 void 569 lpfc_handle_latt(struct lpfc_hba * phba) 570 { 571 struct lpfc_sli *psli = &phba->sli; 572 LPFC_MBOXQ_t *pmb; 573 volatile uint32_t control; 574 struct lpfc_dmabuf *mp; 575 int rc = -ENOMEM; 576 577 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 578 if (!pmb) 579 goto lpfc_handle_latt_err_exit; 580 581 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 582 if (!mp) 583 goto lpfc_handle_latt_free_pmb; 584 585 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 586 if (!mp->virt) 587 goto lpfc_handle_latt_free_mp; 588 589 rc = -EIO; 590 591 /* Cleanup any outstanding ELS commands */ 592 lpfc_els_flush_cmd(phba); 593 594 psli->slistat.link_event++; 595 lpfc_read_la(phba, pmb, mp); 596 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 597 rc = lpfc_sli_issue_mbox (phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB)); 598 if (rc == MBX_NOT_FINISHED) 599 goto lpfc_handle_latt_free_mbuf; 600 601 /* Clear Link Attention in HA REG */ 602 spin_lock_irq(phba->host->host_lock); 603 writel(HA_LATT, phba->HAregaddr); 604 readl(phba->HAregaddr); /* flush */ 605 spin_unlock_irq(phba->host->host_lock); 606 607 return; 608 609 lpfc_handle_latt_free_mbuf: 610 lpfc_mbuf_free(phba, mp->virt, mp->phys); 611 lpfc_handle_latt_free_mp: 612 kfree(mp); 613 lpfc_handle_latt_free_pmb: 614 mempool_free(pmb, phba->mbox_mem_pool); 615 lpfc_handle_latt_err_exit: 616 /* Enable Link attention interrupts */ 617 spin_lock_irq(phba->host->host_lock); 618 psli->sli_flag |= LPFC_PROCESS_LA; 619 control = readl(phba->HCregaddr); 620 control |= HC_LAINT_ENA; 621 writel(control, phba->HCregaddr); 622 readl(phba->HCregaddr); /* flush */ 623 624 /* Clear Link Attention in HA REG */ 625 writel(HA_LATT, phba->HAregaddr); 626 readl(phba->HAregaddr); /* flush */ 627 spin_unlock_irq(phba->host->host_lock); 628 lpfc_linkdown(phba); 629 phba->hba_state = LPFC_HBA_ERROR; 630 631 /* The other case is an error from issue_mbox */ 632 if (rc == -ENOMEM) 633 lpfc_printf_log(phba, 634 KERN_WARNING, 635 LOG_MBOX, 636 "%d:0300 READ_LA: no buffers\n", 637 phba->brd_no); 638 639 return; 640 } 641 642 /************************************************************************/ 643 /* */ 644 /* lpfc_parse_vpd */ 645 /* This routine will parse the VPD data */ 646 /* */ 647 /************************************************************************/ 648 static int 649 lpfc_parse_vpd(struct lpfc_hba * phba, uint8_t * vpd, int len) 650 { 651 uint8_t lenlo, lenhi; 652 int Length; 653 int i, j; 654 int finished = 0; 655 int index = 0; 656 657 if (!vpd) 658 return 0; 659 660 /* Vital Product */ 661 lpfc_printf_log(phba, 662 KERN_INFO, 663 LOG_INIT, 664 "%d:0455 Vital Product Data: x%x x%x x%x x%x\n", 665 phba->brd_no, 666 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 667 (uint32_t) vpd[3]); 668 while (!finished && (index < (len - 4))) { 669 switch (vpd[index]) { 670 case 0x82: 671 case 0x91: 672 index += 1; 673 lenlo = vpd[index]; 674 index += 1; 675 lenhi = vpd[index]; 676 index += 1; 677 i = ((((unsigned short)lenhi) << 8) + lenlo); 678 index += i; 679 break; 680 case 0x90: 681 index += 1; 682 lenlo = vpd[index]; 683 index += 1; 684 lenhi = vpd[index]; 685 index += 1; 686 Length = ((((unsigned short)lenhi) << 8) + lenlo); 687 if (Length > len - index) 688 Length = len - index; 689 while (Length > 0) { 690 /* Look for Serial Number */ 691 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 692 index += 2; 693 i = vpd[index]; 694 index += 1; 695 j = 0; 696 Length -= (3+i); 697 while(i--) { 698 phba->SerialNumber[j++] = vpd[index++]; 699 if (j == 31) 700 break; 701 } 702 phba->SerialNumber[j] = 0; 703 continue; 704 } 705 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 706 phba->vpd_flag |= VPD_MODEL_DESC; 707 index += 2; 708 i = vpd[index]; 709 index += 1; 710 j = 0; 711 Length -= (3+i); 712 while(i--) { 713 phba->ModelDesc[j++] = vpd[index++]; 714 if (j == 255) 715 break; 716 } 717 phba->ModelDesc[j] = 0; 718 continue; 719 } 720 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 721 phba->vpd_flag |= VPD_MODEL_NAME; 722 index += 2; 723 i = vpd[index]; 724 index += 1; 725 j = 0; 726 Length -= (3+i); 727 while(i--) { 728 phba->ModelName[j++] = vpd[index++]; 729 if (j == 79) 730 break; 731 } 732 phba->ModelName[j] = 0; 733 continue; 734 } 735 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 736 phba->vpd_flag |= VPD_PROGRAM_TYPE; 737 index += 2; 738 i = vpd[index]; 739 index += 1; 740 j = 0; 741 Length -= (3+i); 742 while(i--) { 743 phba->ProgramType[j++] = vpd[index++]; 744 if (j == 255) 745 break; 746 } 747 phba->ProgramType[j] = 0; 748 continue; 749 } 750 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 751 phba->vpd_flag |= VPD_PORT; 752 index += 2; 753 i = vpd[index]; 754 index += 1; 755 j = 0; 756 Length -= (3+i); 757 while(i--) { 758 phba->Port[j++] = vpd[index++]; 759 if (j == 19) 760 break; 761 } 762 phba->Port[j] = 0; 763 continue; 764 } 765 else { 766 index += 2; 767 i = vpd[index]; 768 index += 1; 769 index += i; 770 Length -= (3 + i); 771 } 772 } 773 finished = 0; 774 break; 775 case 0x78: 776 finished = 1; 777 break; 778 default: 779 index ++; 780 break; 781 } 782 } 783 784 return(1); 785 } 786 787 static void 788 lpfc_get_hba_model_desc(struct lpfc_hba * phba, uint8_t * mdp, uint8_t * descp) 789 { 790 lpfc_vpd_t *vp; 791 uint16_t dev_id = phba->pcidev->device; 792 int max_speed; 793 struct { 794 char * name; 795 int max_speed; 796 char * bus; 797 } m = {"<Unknown>", 0, ""}; 798 799 if (mdp && mdp[0] != '\0' 800 && descp && descp[0] != '\0') 801 return; 802 803 if (phba->lmt & LMT_10Gb) 804 max_speed = 10; 805 else if (phba->lmt & LMT_8Gb) 806 max_speed = 8; 807 else if (phba->lmt & LMT_4Gb) 808 max_speed = 4; 809 else if (phba->lmt & LMT_2Gb) 810 max_speed = 2; 811 else 812 max_speed = 1; 813 814 vp = &phba->vpd; 815 816 switch (dev_id) { 817 case PCI_DEVICE_ID_FIREFLY: 818 m = (typeof(m)){"LP6000", max_speed, "PCI"}; 819 break; 820 case PCI_DEVICE_ID_SUPERFLY: 821 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 822 m = (typeof(m)){"LP7000", max_speed, "PCI"}; 823 else 824 m = (typeof(m)){"LP7000E", max_speed, "PCI"}; 825 break; 826 case PCI_DEVICE_ID_DRAGONFLY: 827 m = (typeof(m)){"LP8000", max_speed, "PCI"}; 828 break; 829 case PCI_DEVICE_ID_CENTAUR: 830 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 831 m = (typeof(m)){"LP9002", max_speed, "PCI"}; 832 else 833 m = (typeof(m)){"LP9000", max_speed, "PCI"}; 834 break; 835 case PCI_DEVICE_ID_RFLY: 836 m = (typeof(m)){"LP952", max_speed, "PCI"}; 837 break; 838 case PCI_DEVICE_ID_PEGASUS: 839 m = (typeof(m)){"LP9802", max_speed, "PCI-X"}; 840 break; 841 case PCI_DEVICE_ID_THOR: 842 m = (typeof(m)){"LP10000", max_speed, "PCI-X"}; 843 break; 844 case PCI_DEVICE_ID_VIPER: 845 m = (typeof(m)){"LPX1000", max_speed, "PCI-X"}; 846 break; 847 case PCI_DEVICE_ID_PFLY: 848 m = (typeof(m)){"LP982", max_speed, "PCI-X"}; 849 break; 850 case PCI_DEVICE_ID_TFLY: 851 m = (typeof(m)){"LP1050", max_speed, "PCI-X"}; 852 break; 853 case PCI_DEVICE_ID_HELIOS: 854 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"}; 855 break; 856 case PCI_DEVICE_ID_HELIOS_SCSP: 857 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"}; 858 break; 859 case PCI_DEVICE_ID_HELIOS_DCSP: 860 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"}; 861 break; 862 case PCI_DEVICE_ID_NEPTUNE: 863 m = (typeof(m)){"LPe1000", max_speed, "PCIe"}; 864 break; 865 case PCI_DEVICE_ID_NEPTUNE_SCSP: 866 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"}; 867 break; 868 case PCI_DEVICE_ID_NEPTUNE_DCSP: 869 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"}; 870 break; 871 case PCI_DEVICE_ID_BMID: 872 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"}; 873 break; 874 case PCI_DEVICE_ID_BSMB: 875 m = (typeof(m)){"LP111", max_speed, "PCI-X2"}; 876 break; 877 case PCI_DEVICE_ID_ZEPHYR: 878 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 879 break; 880 case PCI_DEVICE_ID_ZEPHYR_SCSP: 881 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 882 break; 883 case PCI_DEVICE_ID_ZEPHYR_DCSP: 884 m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"}; 885 break; 886 case PCI_DEVICE_ID_ZMID: 887 m = (typeof(m)){"LPe1150", max_speed, "PCIe"}; 888 break; 889 case PCI_DEVICE_ID_ZSMB: 890 m = (typeof(m)){"LPe111", max_speed, "PCIe"}; 891 break; 892 case PCI_DEVICE_ID_LP101: 893 m = (typeof(m)){"LP101", max_speed, "PCI-X"}; 894 break; 895 case PCI_DEVICE_ID_LP10000S: 896 m = (typeof(m)){"LP10000-S", max_speed, "PCI"}; 897 break; 898 case PCI_DEVICE_ID_LP11000S: 899 m = (typeof(m)){"LP11000-S", max_speed, 900 "PCI-X2"}; 901 break; 902 case PCI_DEVICE_ID_LPE11000S: 903 m = (typeof(m)){"LPe11000-S", max_speed, 904 "PCIe"}; 905 break; 906 case PCI_DEVICE_ID_SAT: 907 m = (typeof(m)){"LPe12000", max_speed, "PCIe"}; 908 break; 909 case PCI_DEVICE_ID_SAT_MID: 910 m = (typeof(m)){"LPe1250", max_speed, "PCIe"}; 911 break; 912 case PCI_DEVICE_ID_SAT_SMB: 913 m = (typeof(m)){"LPe121", max_speed, "PCIe"}; 914 break; 915 case PCI_DEVICE_ID_SAT_DCSP: 916 m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"}; 917 break; 918 case PCI_DEVICE_ID_SAT_SCSP: 919 m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"}; 920 break; 921 case PCI_DEVICE_ID_SAT_S: 922 m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"}; 923 break; 924 default: 925 m = (typeof(m)){ NULL }; 926 break; 927 } 928 929 if (mdp && mdp[0] == '\0') 930 snprintf(mdp, 79,"%s", m.name); 931 if (descp && descp[0] == '\0') 932 snprintf(descp, 255, 933 "Emulex %s %dGb %s Fibre Channel Adapter", 934 m.name, m.max_speed, m.bus); 935 } 936 937 /**************************************************/ 938 /* lpfc_post_buffer */ 939 /* */ 940 /* This routine will post count buffers to the */ 941 /* ring with the QUE_RING_BUF_CN command. This */ 942 /* allows 3 buffers / command to be posted. */ 943 /* Returns the number of buffers NOT posted. */ 944 /**************************************************/ 945 int 946 lpfc_post_buffer(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, int cnt, 947 int type) 948 { 949 IOCB_t *icmd; 950 struct lpfc_iocbq *iocb; 951 struct lpfc_dmabuf *mp1, *mp2; 952 953 cnt += pring->missbufcnt; 954 955 /* While there are buffers to post */ 956 while (cnt > 0) { 957 /* Allocate buffer for command iocb */ 958 spin_lock_irq(phba->host->host_lock); 959 iocb = lpfc_sli_get_iocbq(phba); 960 spin_unlock_irq(phba->host->host_lock); 961 if (iocb == NULL) { 962 pring->missbufcnt = cnt; 963 return cnt; 964 } 965 icmd = &iocb->iocb; 966 967 /* 2 buffers can be posted per command */ 968 /* Allocate buffer to post */ 969 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 970 if (mp1) 971 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 972 &mp1->phys); 973 if (mp1 == 0 || mp1->virt == 0) { 974 kfree(mp1); 975 spin_lock_irq(phba->host->host_lock); 976 lpfc_sli_release_iocbq(phba, iocb); 977 spin_unlock_irq(phba->host->host_lock); 978 pring->missbufcnt = cnt; 979 return cnt; 980 } 981 982 INIT_LIST_HEAD(&mp1->list); 983 /* Allocate buffer to post */ 984 if (cnt > 1) { 985 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 986 if (mp2) 987 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 988 &mp2->phys); 989 if (mp2 == 0 || mp2->virt == 0) { 990 kfree(mp2); 991 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 992 kfree(mp1); 993 spin_lock_irq(phba->host->host_lock); 994 lpfc_sli_release_iocbq(phba, iocb); 995 spin_unlock_irq(phba->host->host_lock); 996 pring->missbufcnt = cnt; 997 return cnt; 998 } 999 1000 INIT_LIST_HEAD(&mp2->list); 1001 } else { 1002 mp2 = NULL; 1003 } 1004 1005 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1006 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1007 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1008 icmd->ulpBdeCount = 1; 1009 cnt--; 1010 if (mp2) { 1011 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1012 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1013 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1014 cnt--; 1015 icmd->ulpBdeCount = 2; 1016 } 1017 1018 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1019 icmd->ulpLe = 1; 1020 1021 spin_lock_irq(phba->host->host_lock); 1022 if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) { 1023 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1024 kfree(mp1); 1025 cnt++; 1026 if (mp2) { 1027 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1028 kfree(mp2); 1029 cnt++; 1030 } 1031 lpfc_sli_release_iocbq(phba, iocb); 1032 pring->missbufcnt = cnt; 1033 spin_unlock_irq(phba->host->host_lock); 1034 return cnt; 1035 } 1036 spin_unlock_irq(phba->host->host_lock); 1037 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1038 if (mp2) { 1039 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1040 } 1041 } 1042 pring->missbufcnt = 0; 1043 return 0; 1044 } 1045 1046 /************************************************************************/ 1047 /* */ 1048 /* lpfc_post_rcv_buf */ 1049 /* This routine post initial rcv buffers to the configured rings */ 1050 /* */ 1051 /************************************************************************/ 1052 static int 1053 lpfc_post_rcv_buf(struct lpfc_hba * phba) 1054 { 1055 struct lpfc_sli *psli = &phba->sli; 1056 1057 /* Ring 0, ELS / CT buffers */ 1058 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0, 1); 1059 /* Ring 2 - FCP no buffers needed */ 1060 1061 return 0; 1062 } 1063 1064 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 1065 1066 /************************************************************************/ 1067 /* */ 1068 /* lpfc_sha_init */ 1069 /* */ 1070 /************************************************************************/ 1071 static void 1072 lpfc_sha_init(uint32_t * HashResultPointer) 1073 { 1074 HashResultPointer[0] = 0x67452301; 1075 HashResultPointer[1] = 0xEFCDAB89; 1076 HashResultPointer[2] = 0x98BADCFE; 1077 HashResultPointer[3] = 0x10325476; 1078 HashResultPointer[4] = 0xC3D2E1F0; 1079 } 1080 1081 /************************************************************************/ 1082 /* */ 1083 /* lpfc_sha_iterate */ 1084 /* */ 1085 /************************************************************************/ 1086 static void 1087 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 1088 { 1089 int t; 1090 uint32_t TEMP; 1091 uint32_t A, B, C, D, E; 1092 t = 16; 1093 do { 1094 HashWorkingPointer[t] = 1095 S(1, 1096 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 1097 8] ^ 1098 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 1099 } while (++t <= 79); 1100 t = 0; 1101 A = HashResultPointer[0]; 1102 B = HashResultPointer[1]; 1103 C = HashResultPointer[2]; 1104 D = HashResultPointer[3]; 1105 E = HashResultPointer[4]; 1106 1107 do { 1108 if (t < 20) { 1109 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 1110 } else if (t < 40) { 1111 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 1112 } else if (t < 60) { 1113 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 1114 } else { 1115 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 1116 } 1117 TEMP += S(5, A) + E + HashWorkingPointer[t]; 1118 E = D; 1119 D = C; 1120 C = S(30, B); 1121 B = A; 1122 A = TEMP; 1123 } while (++t <= 79); 1124 1125 HashResultPointer[0] += A; 1126 HashResultPointer[1] += B; 1127 HashResultPointer[2] += C; 1128 HashResultPointer[3] += D; 1129 HashResultPointer[4] += E; 1130 1131 } 1132 1133 /************************************************************************/ 1134 /* */ 1135 /* lpfc_challenge_key */ 1136 /* */ 1137 /************************************************************************/ 1138 static void 1139 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 1140 { 1141 *HashWorking = (*RandomChallenge ^ *HashWorking); 1142 } 1143 1144 /************************************************************************/ 1145 /* */ 1146 /* lpfc_hba_init */ 1147 /* */ 1148 /************************************************************************/ 1149 void 1150 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 1151 { 1152 int t; 1153 uint32_t *HashWorking; 1154 uint32_t *pwwnn = phba->wwnn; 1155 1156 HashWorking = kmalloc(80 * sizeof(uint32_t), GFP_KERNEL); 1157 if (!HashWorking) 1158 return; 1159 1160 memset(HashWorking, 0, (80 * sizeof(uint32_t))); 1161 HashWorking[0] = HashWorking[78] = *pwwnn++; 1162 HashWorking[1] = HashWorking[79] = *pwwnn; 1163 1164 for (t = 0; t < 7; t++) 1165 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 1166 1167 lpfc_sha_init(hbainit); 1168 lpfc_sha_iterate(hbainit, HashWorking); 1169 kfree(HashWorking); 1170 } 1171 1172 static void 1173 lpfc_cleanup(struct lpfc_hba * phba) 1174 { 1175 struct lpfc_nodelist *ndlp, *next_ndlp; 1176 1177 /* clean up phba - lpfc specific */ 1178 lpfc_can_disctmo(phba); 1179 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nodes, nlp_listp) 1180 lpfc_nlp_put(ndlp); 1181 1182 INIT_LIST_HEAD(&phba->fc_nodes); 1183 1184 return; 1185 } 1186 1187 static void 1188 lpfc_establish_link_tmo(unsigned long ptr) 1189 { 1190 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 1191 unsigned long iflag; 1192 1193 1194 /* Re-establishing Link, timer expired */ 1195 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 1196 "%d:1300 Re-establishing Link, timer expired " 1197 "Data: x%x x%x\n", 1198 phba->brd_no, phba->fc_flag, phba->hba_state); 1199 spin_lock_irqsave(phba->host->host_lock, iflag); 1200 phba->fc_flag &= ~FC_ESTABLISH_LINK; 1201 spin_unlock_irqrestore(phba->host->host_lock, iflag); 1202 } 1203 1204 static int 1205 lpfc_stop_timer(struct lpfc_hba * phba) 1206 { 1207 struct lpfc_sli *psli = &phba->sli; 1208 1209 del_timer_sync(&phba->fcp_poll_timer); 1210 del_timer_sync(&phba->fc_estabtmo); 1211 del_timer_sync(&phba->fc_disctmo); 1212 del_timer_sync(&phba->fc_fdmitmo); 1213 del_timer_sync(&phba->els_tmofunc); 1214 psli = &phba->sli; 1215 del_timer_sync(&psli->mbox_tmo); 1216 return(1); 1217 } 1218 1219 int 1220 lpfc_online(struct lpfc_hba * phba) 1221 { 1222 if (!phba) 1223 return 0; 1224 1225 if (!(phba->fc_flag & FC_OFFLINE_MODE)) 1226 return 0; 1227 1228 lpfc_printf_log(phba, 1229 KERN_WARNING, 1230 LOG_INIT, 1231 "%d:0458 Bring Adapter online\n", 1232 phba->brd_no); 1233 1234 lpfc_block_mgmt_io(phba); 1235 1236 if (!lpfc_sli_queue_setup(phba)) { 1237 lpfc_unblock_mgmt_io(phba); 1238 return 1; 1239 } 1240 1241 if (lpfc_sli_hba_setup(phba)) { /* Initialize the HBA */ 1242 lpfc_unblock_mgmt_io(phba); 1243 return 1; 1244 } 1245 1246 spin_lock_irq(phba->host->host_lock); 1247 phba->fc_flag &= ~FC_OFFLINE_MODE; 1248 spin_unlock_irq(phba->host->host_lock); 1249 1250 lpfc_unblock_mgmt_io(phba); 1251 return 0; 1252 } 1253 1254 void 1255 lpfc_block_mgmt_io(struct lpfc_hba * phba) 1256 { 1257 unsigned long iflag; 1258 1259 spin_lock_irqsave(phba->host->host_lock, iflag); 1260 phba->fc_flag |= FC_BLOCK_MGMT_IO; 1261 spin_unlock_irqrestore(phba->host->host_lock, iflag); 1262 } 1263 1264 void 1265 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 1266 { 1267 unsigned long iflag; 1268 1269 spin_lock_irqsave(phba->host->host_lock, iflag); 1270 phba->fc_flag &= ~FC_BLOCK_MGMT_IO; 1271 spin_unlock_irqrestore(phba->host->host_lock, iflag); 1272 } 1273 1274 void 1275 lpfc_offline_prep(struct lpfc_hba * phba) 1276 { 1277 struct lpfc_nodelist *ndlp, *next_ndlp; 1278 1279 if (phba->fc_flag & FC_OFFLINE_MODE) 1280 return; 1281 1282 lpfc_block_mgmt_io(phba); 1283 1284 lpfc_linkdown(phba); 1285 1286 /* Issue an unreg_login to all nodes */ 1287 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nodes, nlp_listp) 1288 if (ndlp->nlp_state != NLP_STE_UNUSED_NODE) 1289 lpfc_unreg_rpi(phba, ndlp); 1290 1291 lpfc_sli_flush_mbox_queue(phba); 1292 } 1293 1294 void 1295 lpfc_offline(struct lpfc_hba * phba) 1296 { 1297 unsigned long iflag; 1298 1299 if (phba->fc_flag & FC_OFFLINE_MODE) 1300 return; 1301 1302 /* stop all timers associated with this hba */ 1303 lpfc_stop_timer(phba); 1304 1305 lpfc_printf_log(phba, 1306 KERN_WARNING, 1307 LOG_INIT, 1308 "%d:0460 Bring Adapter offline\n", 1309 phba->brd_no); 1310 1311 /* Bring down the SLI Layer and cleanup. The HBA is offline 1312 now. */ 1313 lpfc_sli_hba_down(phba); 1314 lpfc_cleanup(phba); 1315 spin_lock_irqsave(phba->host->host_lock, iflag); 1316 phba->work_hba_events = 0; 1317 phba->work_ha = 0; 1318 phba->fc_flag |= FC_OFFLINE_MODE; 1319 spin_unlock_irqrestore(phba->host->host_lock, iflag); 1320 } 1321 1322 /****************************************************************************** 1323 * Function name: lpfc_scsi_free 1324 * 1325 * Description: Called from lpfc_pci_remove_one free internal driver resources 1326 * 1327 ******************************************************************************/ 1328 static int 1329 lpfc_scsi_free(struct lpfc_hba * phba) 1330 { 1331 struct lpfc_scsi_buf *sb, *sb_next; 1332 struct lpfc_iocbq *io, *io_next; 1333 1334 spin_lock_irq(phba->host->host_lock); 1335 /* Release all the lpfc_scsi_bufs maintained by this host. */ 1336 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 1337 list_del(&sb->list); 1338 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 1339 sb->dma_handle); 1340 kfree(sb); 1341 phba->total_scsi_bufs--; 1342 } 1343 1344 /* Release all the lpfc_iocbq entries maintained by this host. */ 1345 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 1346 list_del(&io->list); 1347 kfree(io); 1348 phba->total_iocbq_bufs--; 1349 } 1350 1351 spin_unlock_irq(phba->host->host_lock); 1352 1353 return 0; 1354 } 1355 1356 void lpfc_remove_device(struct lpfc_hba *phba) 1357 { 1358 unsigned long iflag; 1359 1360 lpfc_free_sysfs_attr(phba); 1361 1362 spin_lock_irqsave(phba->host->host_lock, iflag); 1363 phba->fc_flag |= FC_UNLOADING; 1364 1365 spin_unlock_irqrestore(phba->host->host_lock, iflag); 1366 1367 fc_remove_host(phba->host); 1368 scsi_remove_host(phba->host); 1369 1370 kthread_stop(phba->worker_thread); 1371 1372 /* 1373 * Bring down the SLI Layer. This step disable all interrupts, 1374 * clears the rings, discards all mailbox commands, and resets 1375 * the HBA. 1376 */ 1377 lpfc_sli_hba_down(phba); 1378 lpfc_sli_brdrestart(phba); 1379 1380 /* Release the irq reservation */ 1381 free_irq(phba->pcidev->irq, phba); 1382 pci_disable_msi(phba->pcidev); 1383 1384 lpfc_cleanup(phba); 1385 lpfc_stop_timer(phba); 1386 phba->work_hba_events = 0; 1387 1388 /* 1389 * Call scsi_free before mem_free since scsi bufs are released to their 1390 * corresponding pools here. 1391 */ 1392 lpfc_scsi_free(phba); 1393 lpfc_mem_free(phba); 1394 1395 /* Free resources associated with SLI2 interface */ 1396 dma_free_coherent(&phba->pcidev->dev, SLI2_SLIM_SIZE, 1397 phba->slim2p, phba->slim2p_mapping); 1398 1399 /* unmap adapter SLIM and Control Registers */ 1400 iounmap(phba->ctrl_regs_memmap_p); 1401 iounmap(phba->slim_memmap_p); 1402 1403 pci_release_regions(phba->pcidev); 1404 pci_disable_device(phba->pcidev); 1405 1406 idr_remove(&lpfc_hba_index, phba->brd_no); 1407 scsi_host_put(phba->host); 1408 } 1409 1410 void lpfc_scan_start(struct Scsi_Host *host) 1411 { 1412 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata; 1413 1414 if (lpfc_alloc_sysfs_attr(phba)) 1415 goto error; 1416 1417 phba->MBslimaddr = phba->slim_memmap_p; 1418 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 1419 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 1420 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 1421 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 1422 1423 if (lpfc_sli_hba_setup(phba)) 1424 goto error; 1425 1426 /* 1427 * hba setup may have changed the hba_queue_depth so we need to adjust 1428 * the value of can_queue. 1429 */ 1430 host->can_queue = phba->cfg_hba_queue_depth - 10; 1431 return; 1432 1433 error: 1434 lpfc_remove_device(phba); 1435 } 1436 1437 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 1438 { 1439 struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata; 1440 1441 if (!phba->host) 1442 return 1; 1443 if (time >= 30 * HZ) 1444 goto finished; 1445 1446 if (phba->hba_state != LPFC_HBA_READY) 1447 return 0; 1448 if (phba->num_disc_nodes || phba->fc_prli_sent) 1449 return 0; 1450 if ((phba->fc_map_cnt == 0) && (time < 2 * HZ)) 1451 return 0; 1452 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) 1453 return 0; 1454 if ((phba->hba_state > LPFC_LINK_DOWN) || (time < 15 * HZ)) 1455 return 0; 1456 1457 finished: 1458 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 1459 spin_lock_irq(shost->host_lock); 1460 lpfc_poll_start_timer(phba); 1461 spin_unlock_irq(shost->host_lock); 1462 } 1463 1464 /* 1465 * set fixed host attributes 1466 * Must done after lpfc_sli_hba_setup() 1467 */ 1468 1469 fc_host_node_name(shost) = wwn_to_u64(phba->fc_nodename.u.wwn); 1470 fc_host_port_name(shost) = wwn_to_u64(phba->fc_portname.u.wwn); 1471 fc_host_supported_classes(shost) = FC_COS_CLASS3; 1472 1473 memset(fc_host_supported_fc4s(shost), 0, 1474 sizeof(fc_host_supported_fc4s(shost))); 1475 fc_host_supported_fc4s(shost)[2] = 1; 1476 fc_host_supported_fc4s(shost)[7] = 1; 1477 1478 lpfc_get_hba_sym_node_name(phba, fc_host_symbolic_name(shost)); 1479 1480 fc_host_supported_speeds(shost) = 0; 1481 if (phba->lmt & LMT_10Gb) 1482 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 1483 if (phba->lmt & LMT_4Gb) 1484 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 1485 if (phba->lmt & LMT_2Gb) 1486 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 1487 if (phba->lmt & LMT_1Gb) 1488 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 1489 1490 fc_host_maxframe_size(shost) = 1491 ((((uint32_t) phba->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 1492 (uint32_t) phba->fc_sparam.cmn.bbRcvSizeLsb); 1493 1494 /* This value is also unchanging */ 1495 memset(fc_host_active_fc4s(shost), 0, 1496 sizeof(fc_host_active_fc4s(shost))); 1497 fc_host_active_fc4s(shost)[2] = 1; 1498 fc_host_active_fc4s(shost)[7] = 1; 1499 1500 spin_lock_irq(shost->host_lock); 1501 phba->fc_flag &= ~FC_LOADING; 1502 spin_unlock_irq(shost->host_lock); 1503 1504 return 1; 1505 } 1506 1507 static int __devinit 1508 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 1509 { 1510 struct Scsi_Host *host; 1511 struct lpfc_hba *phba; 1512 struct lpfc_sli *psli; 1513 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 1514 unsigned long bar0map_len, bar2map_len; 1515 int error = -ENODEV, retval; 1516 int i; 1517 uint16_t iotag; 1518 1519 if (pci_enable_device(pdev)) 1520 goto out; 1521 if (pci_request_regions(pdev, LPFC_DRIVER_NAME)) 1522 goto out_disable_device; 1523 1524 host = scsi_host_alloc(&lpfc_template, sizeof (struct lpfc_hba)); 1525 if (!host) 1526 goto out_release_regions; 1527 1528 phba = (struct lpfc_hba*)host->hostdata; 1529 memset(phba, 0, sizeof (struct lpfc_hba)); 1530 phba->host = host; 1531 1532 phba->fc_flag |= FC_LOADING; 1533 phba->pcidev = pdev; 1534 1535 /* Assign an unused board number */ 1536 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 1537 goto out_put_host; 1538 1539 error = idr_get_new(&lpfc_hba_index, NULL, &phba->brd_no); 1540 if (error) 1541 goto out_put_host; 1542 1543 host->unique_id = phba->brd_no; 1544 1545 /* Initialize timers used by driver */ 1546 init_timer(&phba->fc_estabtmo); 1547 phba->fc_estabtmo.function = lpfc_establish_link_tmo; 1548 phba->fc_estabtmo.data = (unsigned long)phba; 1549 init_timer(&phba->fc_disctmo); 1550 phba->fc_disctmo.function = lpfc_disc_timeout; 1551 phba->fc_disctmo.data = (unsigned long)phba; 1552 1553 init_timer(&phba->fc_fdmitmo); 1554 phba->fc_fdmitmo.function = lpfc_fdmi_tmo; 1555 phba->fc_fdmitmo.data = (unsigned long)phba; 1556 init_timer(&phba->els_tmofunc); 1557 phba->els_tmofunc.function = lpfc_els_timeout; 1558 phba->els_tmofunc.data = (unsigned long)phba; 1559 psli = &phba->sli; 1560 init_timer(&psli->mbox_tmo); 1561 psli->mbox_tmo.function = lpfc_mbox_timeout; 1562 psli->mbox_tmo.data = (unsigned long)phba; 1563 1564 init_timer(&phba->fcp_poll_timer); 1565 phba->fcp_poll_timer.function = lpfc_poll_timeout; 1566 phba->fcp_poll_timer.data = (unsigned long)phba; 1567 1568 /* 1569 * Get all the module params for configuring this host and then 1570 * establish the host parameters. 1571 */ 1572 lpfc_get_cfgparam(phba); 1573 1574 host->max_id = LPFC_MAX_TARGET; 1575 host->max_lun = phba->cfg_max_luns; 1576 host->this_id = -1; 1577 1578 INIT_LIST_HEAD(&phba->fc_nodes); 1579 1580 pci_set_master(pdev); 1581 retval = pci_set_mwi(pdev); 1582 if (retval) 1583 dev_printk(KERN_WARNING, &pdev->dev, 1584 "Warning: pci_set_mwi returned %d\n", retval); 1585 1586 if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0) 1587 if (pci_set_dma_mask(phba->pcidev, DMA_32BIT_MASK) != 0) 1588 goto out_idr_remove; 1589 1590 /* 1591 * Get the bus address of Bar0 and Bar2 and the number of bytes 1592 * required by each mapping. 1593 */ 1594 phba->pci_bar0_map = pci_resource_start(phba->pcidev, 0); 1595 bar0map_len = pci_resource_len(phba->pcidev, 0); 1596 1597 phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2); 1598 bar2map_len = pci_resource_len(phba->pcidev, 2); 1599 1600 /* Map HBA SLIM to a kernel virtual address. */ 1601 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 1602 if (!phba->slim_memmap_p) { 1603 error = -ENODEV; 1604 dev_printk(KERN_ERR, &pdev->dev, 1605 "ioremap failed for SLIM memory.\n"); 1606 goto out_idr_remove; 1607 } 1608 1609 /* Map HBA Control Registers to a kernel virtual address. */ 1610 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 1611 if (!phba->ctrl_regs_memmap_p) { 1612 error = -ENODEV; 1613 dev_printk(KERN_ERR, &pdev->dev, 1614 "ioremap failed for HBA control registers.\n"); 1615 goto out_iounmap_slim; 1616 } 1617 1618 /* Allocate memory for SLI-2 structures */ 1619 phba->slim2p = dma_alloc_coherent(&phba->pcidev->dev, SLI2_SLIM_SIZE, 1620 &phba->slim2p_mapping, GFP_KERNEL); 1621 if (!phba->slim2p) 1622 goto out_iounmap; 1623 1624 memset(phba->slim2p, 0, SLI2_SLIM_SIZE); 1625 1626 /* Initialize the SLI Layer to run with lpfc HBAs. */ 1627 lpfc_sli_setup(phba); 1628 lpfc_sli_queue_setup(phba); 1629 1630 error = lpfc_mem_alloc(phba); 1631 if (error) 1632 goto out_free_slim; 1633 1634 /* Initialize and populate the iocb list per host. */ 1635 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 1636 for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) { 1637 iocbq_entry = kmalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 1638 if (iocbq_entry == NULL) { 1639 printk(KERN_ERR "%s: only allocated %d iocbs of " 1640 "expected %d count. Unloading driver.\n", 1641 __FUNCTION__, i, LPFC_IOCB_LIST_CNT); 1642 error = -ENOMEM; 1643 goto out_free_iocbq; 1644 } 1645 1646 memset(iocbq_entry, 0, sizeof(struct lpfc_iocbq)); 1647 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 1648 if (iotag == 0) { 1649 kfree (iocbq_entry); 1650 printk(KERN_ERR "%s: failed to allocate IOTAG. " 1651 "Unloading driver.\n", 1652 __FUNCTION__); 1653 error = -ENOMEM; 1654 goto out_free_iocbq; 1655 } 1656 spin_lock_irq(phba->host->host_lock); 1657 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 1658 phba->total_iocbq_bufs++; 1659 spin_unlock_irq(phba->host->host_lock); 1660 } 1661 1662 /* Initialize HBA structure */ 1663 phba->fc_edtov = FF_DEF_EDTOV; 1664 phba->fc_ratov = FF_DEF_RATOV; 1665 phba->fc_altov = FF_DEF_ALTOV; 1666 phba->fc_arbtov = FF_DEF_ARBTOV; 1667 1668 INIT_LIST_HEAD(&phba->work_list); 1669 phba->work_ha_mask = (HA_ERATT|HA_MBATT|HA_LATT); 1670 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 1671 1672 /* Startup the kernel thread for this host adapter. */ 1673 phba->worker_thread = kthread_run(lpfc_do_work, phba, 1674 "lpfc_worker_%d", phba->brd_no); 1675 if (IS_ERR(phba->worker_thread)) { 1676 error = PTR_ERR(phba->worker_thread); 1677 goto out_free_iocbq; 1678 } 1679 1680 /* 1681 * Set initial can_queue value since 0 is no longer supported and 1682 * scsi_add_host will fail. This will be adjusted later based on the 1683 * max xri value determined in hba setup. 1684 */ 1685 host->can_queue = phba->cfg_hba_queue_depth - 10; 1686 1687 /* Tell the midlayer we support 16 byte commands */ 1688 host->max_cmd_len = 16; 1689 1690 /* Initialize the list of scsi buffers used by driver for scsi IO. */ 1691 spin_lock_init(&phba->scsi_buf_list_lock); 1692 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 1693 1694 host->transportt = lpfc_transport_template; 1695 pci_set_drvdata(pdev, host); 1696 1697 if (phba->cfg_use_msi) { 1698 error = pci_enable_msi(phba->pcidev); 1699 if (error) 1700 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "%d:0452 " 1701 "Enable MSI failed, continuing with " 1702 "IRQ\n", phba->brd_no); 1703 } 1704 1705 error = request_irq(phba->pcidev->irq, lpfc_intr_handler, IRQF_SHARED, 1706 LPFC_DRIVER_NAME, phba); 1707 if (error) { 1708 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1709 "%d:0451 Enable interrupt handler failed\n", 1710 phba->brd_no); 1711 goto out_kthread_stop; 1712 } 1713 1714 error = scsi_add_host(host, &pdev->dev); 1715 if (error) 1716 goto out_free_irq; 1717 1718 scsi_scan_host(host); 1719 1720 return 0; 1721 1722 out_free_irq: 1723 lpfc_stop_timer(phba); 1724 phba->work_hba_events = 0; 1725 free_irq(phba->pcidev->irq, phba); 1726 pci_disable_msi(phba->pcidev); 1727 out_kthread_stop: 1728 kthread_stop(phba->worker_thread); 1729 out_free_iocbq: 1730 list_for_each_entry_safe(iocbq_entry, iocbq_next, 1731 &phba->lpfc_iocb_list, list) { 1732 spin_lock_irq(phba->host->host_lock); 1733 kfree(iocbq_entry); 1734 phba->total_iocbq_bufs--; 1735 spin_unlock_irq(phba->host->host_lock); 1736 } 1737 lpfc_mem_free(phba); 1738 out_free_slim: 1739 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, phba->slim2p, 1740 phba->slim2p_mapping); 1741 out_iounmap: 1742 iounmap(phba->ctrl_regs_memmap_p); 1743 out_iounmap_slim: 1744 iounmap(phba->slim_memmap_p); 1745 out_idr_remove: 1746 idr_remove(&lpfc_hba_index, phba->brd_no); 1747 out_put_host: 1748 phba->host = NULL; 1749 scsi_host_put(host); 1750 out_release_regions: 1751 pci_release_regions(pdev); 1752 out_disable_device: 1753 pci_disable_device(pdev); 1754 out: 1755 pci_set_drvdata(pdev, NULL); 1756 return error; 1757 } 1758 1759 static void __devexit 1760 lpfc_pci_remove_one(struct pci_dev *pdev) 1761 { 1762 struct Scsi_Host *host = pci_get_drvdata(pdev); 1763 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata; 1764 1765 lpfc_remove_device(phba); 1766 1767 pci_set_drvdata(pdev, NULL); 1768 } 1769 1770 /** 1771 * lpfc_io_error_detected - called when PCI error is detected 1772 * @pdev: Pointer to PCI device 1773 * @state: The current pci conneection state 1774 * 1775 * This function is called after a PCI bus error affecting 1776 * this device has been detected. 1777 */ 1778 static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev, 1779 pci_channel_state_t state) 1780 { 1781 struct Scsi_Host *host = pci_get_drvdata(pdev); 1782 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata; 1783 struct lpfc_sli *psli = &phba->sli; 1784 struct lpfc_sli_ring *pring; 1785 1786 if (state == pci_channel_io_perm_failure) 1787 return PCI_ERS_RESULT_DISCONNECT; 1788 1789 pci_disable_device(pdev); 1790 /* 1791 * There may be I/Os dropped by the firmware. 1792 * Error iocb (I/O) on txcmplq and let the SCSI layer 1793 * retry it after re-establishing link. 1794 */ 1795 pring = &psli->ring[psli->fcp_ring]; 1796 lpfc_sli_abort_iocb_ring(phba, pring); 1797 1798 /* Request a slot reset. */ 1799 return PCI_ERS_RESULT_NEED_RESET; 1800 } 1801 1802 /** 1803 * lpfc_io_slot_reset - called after the pci bus has been reset. 1804 * @pdev: Pointer to PCI device 1805 * 1806 * Restart the card from scratch, as if from a cold-boot. 1807 */ 1808 static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev) 1809 { 1810 struct Scsi_Host *host = pci_get_drvdata(pdev); 1811 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata; 1812 struct lpfc_sli *psli = &phba->sli; 1813 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 1814 1815 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 1816 if (pci_enable_device_bars(pdev, bars)) { 1817 printk(KERN_ERR "lpfc: Cannot re-enable " 1818 "PCI device after reset.\n"); 1819 return PCI_ERS_RESULT_DISCONNECT; 1820 } 1821 1822 pci_set_master(pdev); 1823 1824 /* Re-establishing Link */ 1825 spin_lock_irq(phba->host->host_lock); 1826 phba->fc_flag |= FC_ESTABLISH_LINK; 1827 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 1828 spin_unlock_irq(phba->host->host_lock); 1829 1830 1831 /* Take device offline; this will perform cleanup */ 1832 lpfc_offline(phba); 1833 lpfc_sli_brdrestart(phba); 1834 1835 return PCI_ERS_RESULT_RECOVERED; 1836 } 1837 1838 /** 1839 * lpfc_io_resume - called when traffic can start flowing again. 1840 * @pdev: Pointer to PCI device 1841 * 1842 * This callback is called when the error recovery driver tells us that 1843 * its OK to resume normal operation. 1844 */ 1845 static void lpfc_io_resume(struct pci_dev *pdev) 1846 { 1847 struct Scsi_Host *host = pci_get_drvdata(pdev); 1848 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata; 1849 1850 if (lpfc_online(phba) == 0) { 1851 mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60); 1852 } 1853 } 1854 1855 static struct pci_device_id lpfc_id_table[] = { 1856 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 1857 PCI_ANY_ID, PCI_ANY_ID, }, 1858 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 1859 PCI_ANY_ID, PCI_ANY_ID, }, 1860 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 1861 PCI_ANY_ID, PCI_ANY_ID, }, 1862 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 1863 PCI_ANY_ID, PCI_ANY_ID, }, 1864 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 1865 PCI_ANY_ID, PCI_ANY_ID, }, 1866 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 1867 PCI_ANY_ID, PCI_ANY_ID, }, 1868 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 1869 PCI_ANY_ID, PCI_ANY_ID, }, 1870 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 1871 PCI_ANY_ID, PCI_ANY_ID, }, 1872 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 1873 PCI_ANY_ID, PCI_ANY_ID, }, 1874 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 1875 PCI_ANY_ID, PCI_ANY_ID, }, 1876 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 1877 PCI_ANY_ID, PCI_ANY_ID, }, 1878 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 1879 PCI_ANY_ID, PCI_ANY_ID, }, 1880 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 1881 PCI_ANY_ID, PCI_ANY_ID, }, 1882 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 1883 PCI_ANY_ID, PCI_ANY_ID, }, 1884 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 1885 PCI_ANY_ID, PCI_ANY_ID, }, 1886 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 1887 PCI_ANY_ID, PCI_ANY_ID, }, 1888 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 1889 PCI_ANY_ID, PCI_ANY_ID, }, 1890 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 1891 PCI_ANY_ID, PCI_ANY_ID, }, 1892 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 1893 PCI_ANY_ID, PCI_ANY_ID, }, 1894 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 1895 PCI_ANY_ID, PCI_ANY_ID, }, 1896 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 1897 PCI_ANY_ID, PCI_ANY_ID, }, 1898 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 1899 PCI_ANY_ID, PCI_ANY_ID, }, 1900 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 1901 PCI_ANY_ID, PCI_ANY_ID, }, 1902 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 1903 PCI_ANY_ID, PCI_ANY_ID, }, 1904 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 1905 PCI_ANY_ID, PCI_ANY_ID, }, 1906 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 1907 PCI_ANY_ID, PCI_ANY_ID, }, 1908 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 1909 PCI_ANY_ID, PCI_ANY_ID, }, 1910 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 1911 PCI_ANY_ID, PCI_ANY_ID, }, 1912 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 1913 PCI_ANY_ID, PCI_ANY_ID, }, 1914 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 1915 PCI_ANY_ID, PCI_ANY_ID, }, 1916 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 1917 PCI_ANY_ID, PCI_ANY_ID, }, 1918 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 1919 PCI_ANY_ID, PCI_ANY_ID, }, 1920 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 1921 PCI_ANY_ID, PCI_ANY_ID, }, 1922 { 0 } 1923 }; 1924 1925 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 1926 1927 static struct pci_error_handlers lpfc_err_handler = { 1928 .error_detected = lpfc_io_error_detected, 1929 .slot_reset = lpfc_io_slot_reset, 1930 .resume = lpfc_io_resume, 1931 }; 1932 1933 static struct pci_driver lpfc_driver = { 1934 .name = LPFC_DRIVER_NAME, 1935 .id_table = lpfc_id_table, 1936 .probe = lpfc_pci_probe_one, 1937 .remove = __devexit_p(lpfc_pci_remove_one), 1938 .err_handler = &lpfc_err_handler, 1939 }; 1940 1941 static int __init 1942 lpfc_init(void) 1943 { 1944 int error = 0; 1945 1946 printk(LPFC_MODULE_DESC "\n"); 1947 printk(LPFC_COPYRIGHT "\n"); 1948 1949 lpfc_transport_template = 1950 fc_attach_transport(&lpfc_transport_functions); 1951 if (!lpfc_transport_template) 1952 return -ENOMEM; 1953 error = pci_register_driver(&lpfc_driver); 1954 if (error) 1955 fc_release_transport(lpfc_transport_template); 1956 1957 return error; 1958 } 1959 1960 static void __exit 1961 lpfc_exit(void) 1962 { 1963 pci_unregister_driver(&lpfc_driver); 1964 fc_release_transport(lpfc_transport_template); 1965 } 1966 1967 module_init(lpfc_init); 1968 module_exit(lpfc_exit); 1969 MODULE_LICENSE("GPL"); 1970 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 1971 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 1972 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 1973