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 #include <linux/ctype.h> 31 32 #include <scsi/scsi.h> 33 #include <scsi/scsi_device.h> 34 #include <scsi/scsi_host.h> 35 #include <scsi/scsi_transport_fc.h> 36 37 #include "lpfc_hw.h" 38 #include "lpfc_sli.h" 39 #include "lpfc_disc.h" 40 #include "lpfc_scsi.h" 41 #include "lpfc.h" 42 #include "lpfc_logmsg.h" 43 #include "lpfc_crtn.h" 44 #include "lpfc_vport.h" 45 #include "lpfc_version.h" 46 #include "lpfc_vport.h" 47 48 static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int); 49 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 50 static int lpfc_post_rcv_buf(struct lpfc_hba *); 51 52 static struct scsi_transport_template *lpfc_transport_template = NULL; 53 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 54 static DEFINE_IDR(lpfc_hba_index); 55 56 57 58 /************************************************************************/ 59 /* */ 60 /* lpfc_config_port_prep */ 61 /* This routine will do LPFC initialization prior to the */ 62 /* CONFIG_PORT mailbox command. This will be initialized */ 63 /* as a SLI layer callback routine. */ 64 /* This routine returns 0 on success or -ERESTART if it wants */ 65 /* the SLI layer to reset the HBA and try again. Any */ 66 /* other return value indicates an error. */ 67 /* */ 68 /************************************************************************/ 69 int 70 lpfc_config_port_prep(struct lpfc_hba *phba) 71 { 72 lpfc_vpd_t *vp = &phba->vpd; 73 int i = 0, rc; 74 LPFC_MBOXQ_t *pmb; 75 MAILBOX_t *mb; 76 char *lpfc_vpd_data = NULL; 77 uint16_t offset = 0; 78 static char licensed[56] = 79 "key unlock for use with gnu public licensed code only\0"; 80 static int init_key = 1; 81 82 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 83 if (!pmb) { 84 phba->link_state = LPFC_HBA_ERROR; 85 return -ENOMEM; 86 } 87 88 mb = &pmb->mb; 89 phba->link_state = LPFC_INIT_MBX_CMDS; 90 91 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 92 if (init_key) { 93 uint32_t *ptext = (uint32_t *) licensed; 94 95 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 96 *ptext = cpu_to_be32(*ptext); 97 init_key = 0; 98 } 99 100 lpfc_read_nv(phba, pmb); 101 memset((char*)mb->un.varRDnvp.rsvd3, 0, 102 sizeof (mb->un.varRDnvp.rsvd3)); 103 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 104 sizeof (licensed)); 105 106 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 107 108 if (rc != MBX_SUCCESS) { 109 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 110 "%d:0324 Config Port initialization " 111 "error, mbxCmd x%x READ_NVPARM, " 112 "mbxStatus x%x\n", 113 phba->brd_no, 114 mb->mbxCommand, mb->mbxStatus); 115 mempool_free(pmb, phba->mbox_mem_pool); 116 return -ERESTART; 117 } 118 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 119 sizeof(phba->wwnn)); 120 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 121 sizeof(phba->wwpn)); 122 } 123 124 phba->sli3_options = 0x0; 125 126 /* Setup and issue mailbox READ REV command */ 127 lpfc_read_rev(phba, pmb); 128 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 129 if (rc != MBX_SUCCESS) { 130 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 131 "%d:0439 Adapter failed to init, mbxCmd x%x " 132 "READ_REV, mbxStatus x%x\n", 133 phba->brd_no, 134 mb->mbxCommand, mb->mbxStatus); 135 mempool_free( pmb, phba->mbox_mem_pool); 136 return -ERESTART; 137 } 138 139 140 /* 141 * The value of rr must be 1 since the driver set the cv field to 1. 142 * This setting requires the FW to set all revision fields. 143 */ 144 if (mb->un.varRdRev.rr == 0) { 145 vp->rev.rBit = 0; 146 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 147 "%d:0440 Adapter failed to init, READ_REV has " 148 "missing revision information.\n", 149 phba->brd_no); 150 mempool_free(pmb, phba->mbox_mem_pool); 151 return -ERESTART; 152 } 153 154 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) 155 return -EINVAL; 156 157 /* Save information as VPD data */ 158 vp->rev.rBit = 1; 159 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 160 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 161 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 162 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 163 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 164 vp->rev.biuRev = mb->un.varRdRev.biuRev; 165 vp->rev.smRev = mb->un.varRdRev.smRev; 166 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 167 vp->rev.endecRev = mb->un.varRdRev.endecRev; 168 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 169 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 170 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 171 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 172 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 173 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 174 175 /* If the sli feature level is less then 9, we must 176 * tear down all RPIs and VPIs on link down if NPIV 177 * is enabled. 178 */ 179 if (vp->rev.feaLevelHigh < 9) 180 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 181 182 if (lpfc_is_LC_HBA(phba->pcidev->device)) 183 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 184 sizeof (phba->RandomData)); 185 186 /* Get adapter VPD information */ 187 pmb->context2 = kmalloc(DMP_RSP_SIZE, GFP_KERNEL); 188 if (!pmb->context2) 189 goto out_free_mbox; 190 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 191 if (!lpfc_vpd_data) 192 goto out_free_context2; 193 194 do { 195 lpfc_dump_mem(phba, pmb, offset); 196 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 197 198 if (rc != MBX_SUCCESS) { 199 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 200 "%d:0441 VPD not present on adapter, " 201 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 202 phba->brd_no, 203 mb->mbxCommand, mb->mbxStatus); 204 mb->un.varDmp.word_cnt = 0; 205 } 206 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 207 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 208 lpfc_sli_pcimem_bcopy(pmb->context2, lpfc_vpd_data + offset, 209 mb->un.varDmp.word_cnt); 210 offset += mb->un.varDmp.word_cnt; 211 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 212 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 213 214 kfree(lpfc_vpd_data); 215 out_free_context2: 216 kfree(pmb->context2); 217 out_free_mbox: 218 mempool_free(pmb, phba->mbox_mem_pool); 219 return 0; 220 } 221 222 /************************************************************************/ 223 /* */ 224 /* lpfc_config_port_post */ 225 /* This routine will do LPFC initialization after the */ 226 /* CONFIG_PORT mailbox command. This will be initialized */ 227 /* as a SLI layer callback routine. */ 228 /* This routine returns 0 on success. Any other return value */ 229 /* indicates an error. */ 230 /* */ 231 /************************************************************************/ 232 int 233 lpfc_config_port_post(struct lpfc_hba *phba) 234 { 235 struct lpfc_vport *vport = phba->pport; 236 LPFC_MBOXQ_t *pmb; 237 MAILBOX_t *mb; 238 struct lpfc_dmabuf *mp; 239 struct lpfc_sli *psli = &phba->sli; 240 uint32_t status, timeout; 241 int i, j; 242 int rc; 243 244 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 245 if (!pmb) { 246 phba->link_state = LPFC_HBA_ERROR; 247 return -ENOMEM; 248 } 249 mb = &pmb->mb; 250 251 /* Get login parameters for NID. */ 252 lpfc_read_sparam(phba, pmb, 0); 253 pmb->vport = vport; 254 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 255 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 256 "%d:0448 Adapter failed init, mbxCmd x%x " 257 "READ_SPARM mbxStatus x%x\n", 258 phba->brd_no, 259 mb->mbxCommand, mb->mbxStatus); 260 phba->link_state = LPFC_HBA_ERROR; 261 mp = (struct lpfc_dmabuf *) pmb->context1; 262 mempool_free( pmb, phba->mbox_mem_pool); 263 lpfc_mbuf_free(phba, mp->virt, mp->phys); 264 kfree(mp); 265 return -EIO; 266 } 267 268 mp = (struct lpfc_dmabuf *) pmb->context1; 269 270 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 271 lpfc_mbuf_free(phba, mp->virt, mp->phys); 272 kfree(mp); 273 pmb->context1 = NULL; 274 275 if (phba->cfg_soft_wwnn) 276 u64_to_wwn(phba->cfg_soft_wwnn, 277 vport->fc_sparam.nodeName.u.wwn); 278 if (phba->cfg_soft_wwpn) 279 u64_to_wwn(phba->cfg_soft_wwpn, 280 vport->fc_sparam.portName.u.wwn); 281 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 282 sizeof (struct lpfc_name)); 283 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 284 sizeof (struct lpfc_name)); 285 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 286 /* This should be consolidated into parse_vpd ? - mr */ 287 if (phba->SerialNumber[0] == 0) { 288 uint8_t *outptr; 289 290 outptr = &vport->fc_nodename.u.s.IEEE[0]; 291 for (i = 0; i < 12; i++) { 292 status = *outptr++; 293 j = ((status & 0xf0) >> 4); 294 if (j <= 9) 295 phba->SerialNumber[i] = 296 (char)((uint8_t) 0x30 + (uint8_t) j); 297 else 298 phba->SerialNumber[i] = 299 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 300 i++; 301 j = (status & 0xf); 302 if (j <= 9) 303 phba->SerialNumber[i] = 304 (char)((uint8_t) 0x30 + (uint8_t) j); 305 else 306 phba->SerialNumber[i] = 307 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 308 } 309 } 310 311 lpfc_read_config(phba, pmb); 312 pmb->vport = vport; 313 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 314 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 315 "%d:0453 Adapter failed to init, mbxCmd x%x " 316 "READ_CONFIG, mbxStatus x%x\n", 317 phba->brd_no, 318 mb->mbxCommand, mb->mbxStatus); 319 phba->link_state = LPFC_HBA_ERROR; 320 mempool_free( pmb, phba->mbox_mem_pool); 321 return -EIO; 322 } 323 324 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 325 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 326 phba->cfg_hba_queue_depth = 327 mb->un.varRdConfig.max_xri + 1; 328 329 phba->lmt = mb->un.varRdConfig.lmt; 330 331 /* Get the default values for Model Name and Description */ 332 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 333 334 if ((phba->cfg_link_speed > LINK_SPEED_10G) 335 || ((phba->cfg_link_speed == LINK_SPEED_1G) 336 && !(phba->lmt & LMT_1Gb)) 337 || ((phba->cfg_link_speed == LINK_SPEED_2G) 338 && !(phba->lmt & LMT_2Gb)) 339 || ((phba->cfg_link_speed == LINK_SPEED_4G) 340 && !(phba->lmt & LMT_4Gb)) 341 || ((phba->cfg_link_speed == LINK_SPEED_8G) 342 && !(phba->lmt & LMT_8Gb)) 343 || ((phba->cfg_link_speed == LINK_SPEED_10G) 344 && !(phba->lmt & LMT_10Gb))) { 345 /* Reset link speed to auto */ 346 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT, 347 "%d:1302 Invalid speed for this board: " 348 "Reset link speed to auto: x%x\n", 349 phba->brd_no, 350 phba->cfg_link_speed); 351 phba->cfg_link_speed = LINK_SPEED_AUTO; 352 } 353 354 phba->link_state = LPFC_LINK_DOWN; 355 356 /* Only process IOCBs on ring 0 till hba_state is READY */ 357 if (psli->ring[psli->extra_ring].cmdringaddr) 358 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 359 if (psli->ring[psli->fcp_ring].cmdringaddr) 360 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 361 if (psli->ring[psli->next_ring].cmdringaddr) 362 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 363 364 /* Post receive buffers for desired rings */ 365 if (phba->sli_rev != 3) 366 lpfc_post_rcv_buf(phba); 367 368 /* Enable appropriate host interrupts */ 369 spin_lock_irq(&phba->hbalock); 370 status = readl(phba->HCregaddr); 371 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 372 if (psli->num_rings > 0) 373 status |= HC_R0INT_ENA; 374 if (psli->num_rings > 1) 375 status |= HC_R1INT_ENA; 376 if (psli->num_rings > 2) 377 status |= HC_R2INT_ENA; 378 if (psli->num_rings > 3) 379 status |= HC_R3INT_ENA; 380 381 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 382 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 383 status &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 384 385 writel(status, phba->HCregaddr); 386 readl(phba->HCregaddr); /* flush */ 387 spin_unlock_irq(&phba->hbalock); 388 389 /* 390 * Setup the ring 0 (els) timeout handler 391 */ 392 timeout = phba->fc_ratov << 1; 393 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 394 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 395 phba->hb_outstanding = 0; 396 phba->last_completion_time = jiffies; 397 398 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed); 399 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 400 pmb->vport = vport; 401 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 402 lpfc_set_loopback_flag(phba); 403 if (rc != MBX_SUCCESS) { 404 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 405 "%d:0454 Adapter failed to init, mbxCmd x%x " 406 "INIT_LINK, mbxStatus x%x\n", 407 phba->brd_no, 408 mb->mbxCommand, mb->mbxStatus); 409 410 /* Clear all interrupt enable conditions */ 411 writel(0, phba->HCregaddr); 412 readl(phba->HCregaddr); /* flush */ 413 /* Clear all pending interrupts */ 414 writel(0xffffffff, phba->HAregaddr); 415 readl(phba->HAregaddr); /* flush */ 416 417 phba->link_state = LPFC_HBA_ERROR; 418 if (rc != MBX_BUSY) 419 mempool_free(pmb, phba->mbox_mem_pool); 420 return -EIO; 421 } 422 /* MBOX buffer will be freed in mbox compl */ 423 424 return (0); 425 } 426 427 /************************************************************************/ 428 /* */ 429 /* lpfc_hba_down_prep */ 430 /* This routine will do LPFC uninitialization before the */ 431 /* HBA is reset when bringing down the SLI Layer. This will be */ 432 /* initialized as a SLI layer callback routine. */ 433 /* This routine returns 0 on success. Any other return value */ 434 /* indicates an error. */ 435 /* */ 436 /************************************************************************/ 437 int 438 lpfc_hba_down_prep(struct lpfc_hba *phba) 439 { 440 struct lpfc_vport *vport = phba->pport; 441 442 /* Disable interrupts */ 443 writel(0, phba->HCregaddr); 444 readl(phba->HCregaddr); /* flush */ 445 446 list_for_each_entry(vport, &phba->port_list, listentry) { 447 lpfc_cleanup_discovery_resources(vport); 448 } 449 450 return 0; 451 } 452 453 /************************************************************************/ 454 /* */ 455 /* lpfc_hba_down_post */ 456 /* This routine will do uninitialization after the HBA is reset */ 457 /* when bringing down the SLI Layer. */ 458 /* This routine returns 0 on success. Any other return value */ 459 /* indicates an error. */ 460 /* */ 461 /************************************************************************/ 462 int 463 lpfc_hba_down_post(struct lpfc_hba *phba) 464 { 465 struct lpfc_sli *psli = &phba->sli; 466 struct lpfc_sli_ring *pring; 467 struct lpfc_dmabuf *mp, *next_mp; 468 int i; 469 470 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 471 lpfc_sli_hbqbuf_free_all(phba); 472 else { 473 /* Cleanup preposted buffers on the ELS ring */ 474 pring = &psli->ring[LPFC_ELS_RING]; 475 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 476 list_del(&mp->list); 477 pring->postbufq_cnt--; 478 lpfc_mbuf_free(phba, mp->virt, mp->phys); 479 kfree(mp); 480 } 481 } 482 483 for (i = 0; i < psli->num_rings; i++) { 484 pring = &psli->ring[i]; 485 lpfc_sli_abort_iocb_ring(phba, pring); 486 } 487 488 return 0; 489 } 490 491 /* HBA heart beat timeout handler */ 492 void 493 lpfc_hb_timeout(unsigned long ptr) 494 { 495 struct lpfc_hba *phba; 496 unsigned long iflag; 497 498 phba = (struct lpfc_hba *)ptr; 499 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 500 if (!(phba->pport->work_port_events & WORKER_HB_TMO)) 501 phba->pport->work_port_events |= WORKER_HB_TMO; 502 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 503 504 if (phba->work_wait) 505 wake_up(phba->work_wait); 506 return; 507 } 508 509 static void 510 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 511 { 512 unsigned long drvr_flag; 513 514 spin_lock_irqsave(&phba->hbalock, drvr_flag); 515 phba->hb_outstanding = 0; 516 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 517 518 mempool_free(pmboxq, phba->mbox_mem_pool); 519 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 520 !(phba->link_state == LPFC_HBA_ERROR) && 521 !(phba->pport->fc_flag & FC_UNLOADING)) 522 mod_timer(&phba->hb_tmofunc, 523 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 524 return; 525 } 526 527 void 528 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 529 { 530 LPFC_MBOXQ_t *pmboxq; 531 int retval; 532 struct lpfc_sli *psli = &phba->sli; 533 534 if ((phba->link_state == LPFC_HBA_ERROR) || 535 (phba->pport->fc_flag & FC_UNLOADING) || 536 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 537 return; 538 539 spin_lock_irq(&phba->pport->work_port_lock); 540 /* If the timer is already canceled do nothing */ 541 if (!(phba->pport->work_port_events & WORKER_HB_TMO)) { 542 spin_unlock_irq(&phba->pport->work_port_lock); 543 return; 544 } 545 546 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 547 jiffies)) { 548 spin_unlock_irq(&phba->pport->work_port_lock); 549 if (!phba->hb_outstanding) 550 mod_timer(&phba->hb_tmofunc, 551 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 552 else 553 mod_timer(&phba->hb_tmofunc, 554 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 555 return; 556 } 557 spin_unlock_irq(&phba->pport->work_port_lock); 558 559 /* If there is no heart beat outstanding, issue a heartbeat command */ 560 if (!phba->hb_outstanding) { 561 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 562 if (!pmboxq) { 563 mod_timer(&phba->hb_tmofunc, 564 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 565 return; 566 } 567 568 lpfc_heart_beat(phba, pmboxq); 569 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 570 pmboxq->vport = phba->pport; 571 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); 572 573 if (retval != MBX_BUSY && retval != MBX_SUCCESS) { 574 mempool_free(pmboxq, phba->mbox_mem_pool); 575 mod_timer(&phba->hb_tmofunc, 576 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 577 return; 578 } 579 mod_timer(&phba->hb_tmofunc, 580 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 581 phba->hb_outstanding = 1; 582 return; 583 } else { 584 /* 585 * If heart beat timeout called with hb_outstanding set we 586 * need to take the HBA offline. 587 */ 588 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 589 "%d:0459 Adapter heartbeat failure, taking " 590 "this port offline.\n", phba->brd_no); 591 592 spin_lock_irq(&phba->hbalock); 593 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 594 spin_unlock_irq(&phba->hbalock); 595 596 lpfc_offline_prep(phba); 597 lpfc_offline(phba); 598 lpfc_unblock_mgmt_io(phba); 599 phba->link_state = LPFC_HBA_ERROR; 600 lpfc_hba_down_post(phba); 601 } 602 } 603 604 /************************************************************************/ 605 /* */ 606 /* lpfc_handle_eratt */ 607 /* This routine will handle processing a Host Attention */ 608 /* Error Status event. This will be initialized */ 609 /* as a SLI layer callback routine. */ 610 /* */ 611 /************************************************************************/ 612 void 613 lpfc_handle_eratt(struct lpfc_hba *phba) 614 { 615 struct lpfc_vport *vport = phba->pport; 616 struct lpfc_sli *psli = &phba->sli; 617 struct lpfc_sli_ring *pring; 618 struct lpfc_vport *port_iterator; 619 uint32_t event_data; 620 struct Scsi_Host *shost; 621 622 /* If the pci channel is offline, ignore possible errors, 623 * since we cannot communicate with the pci card anyway. */ 624 if (pci_channel_offline(phba->pcidev)) 625 return; 626 627 if (phba->work_hs & HS_FFER6 || 628 phba->work_hs & HS_FFER5) { 629 /* Re-establishing Link */ 630 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 631 "%d:1301 Re-establishing Link " 632 "Data: x%x x%x x%x\n", 633 phba->brd_no, phba->work_hs, 634 phba->work_status[0], phba->work_status[1]); 635 list_for_each_entry(port_iterator, &phba->port_list, 636 listentry) { 637 shost = lpfc_shost_from_vport(port_iterator); 638 639 spin_lock_irq(shost->host_lock); 640 port_iterator->fc_flag |= FC_ESTABLISH_LINK; 641 spin_unlock_irq(shost->host_lock); 642 } 643 spin_lock_irq(&phba->hbalock); 644 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 645 spin_unlock_irq(&phba->hbalock); 646 647 /* 648 * Firmware stops when it triggled erratt with HS_FFER6. 649 * That could cause the I/Os dropped by the firmware. 650 * Error iocb (I/O) on txcmplq and let the SCSI layer 651 * retry it after re-establishing link. 652 */ 653 pring = &psli->ring[psli->fcp_ring]; 654 lpfc_sli_abort_iocb_ring(phba, pring); 655 656 657 /* 658 * There was a firmware error. Take the hba offline and then 659 * attempt to restart it. 660 */ 661 lpfc_offline_prep(phba); 662 lpfc_offline(phba); 663 lpfc_sli_brdrestart(phba); 664 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 665 mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60); 666 lpfc_unblock_mgmt_io(phba); 667 return; 668 } 669 lpfc_unblock_mgmt_io(phba); 670 } else { 671 /* The if clause above forces this code path when the status 672 * failure is a value other than FFER6. Do not call the offline 673 * twice. This is the adapter hardware error path. 674 */ 675 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 676 "%d:0457 Adapter Hardware Error " 677 "Data: x%x x%x x%x\n", 678 phba->brd_no, phba->work_hs, 679 phba->work_status[0], phba->work_status[1]); 680 681 event_data = FC_REG_DUMP_EVENT; 682 shost = lpfc_shost_from_vport(vport); 683 fc_host_post_vendor_event(shost, fc_get_event_number(), 684 sizeof(event_data), (char *) &event_data, 685 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 686 687 spin_lock_irq(&phba->hbalock); 688 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 689 spin_unlock_irq(&phba->hbalock); 690 lpfc_offline_prep(phba); 691 lpfc_offline(phba); 692 lpfc_unblock_mgmt_io(phba); 693 phba->link_state = LPFC_HBA_ERROR; 694 lpfc_hba_down_post(phba); 695 } 696 } 697 698 /************************************************************************/ 699 /* */ 700 /* lpfc_handle_latt */ 701 /* This routine will handle processing a Host Attention */ 702 /* Link Status event. This will be initialized */ 703 /* as a SLI layer callback routine. */ 704 /* */ 705 /************************************************************************/ 706 void 707 lpfc_handle_latt(struct lpfc_hba *phba) 708 { 709 struct lpfc_vport *vport = phba->pport; 710 struct lpfc_sli *psli = &phba->sli; 711 struct lpfc_vport *port_iterator; 712 LPFC_MBOXQ_t *pmb; 713 volatile uint32_t control; 714 struct lpfc_dmabuf *mp; 715 int rc = -ENOMEM; 716 717 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 718 if (!pmb) 719 goto lpfc_handle_latt_err_exit; 720 721 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 722 if (!mp) 723 goto lpfc_handle_latt_free_pmb; 724 725 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 726 if (!mp->virt) 727 goto lpfc_handle_latt_free_mp; 728 729 rc = -EIO; 730 731 /* Cleanup any outstanding ELS commands */ 732 list_for_each_entry(port_iterator, &phba->port_list, listentry) 733 lpfc_els_flush_cmd(port_iterator); 734 735 psli->slistat.link_event++; 736 lpfc_read_la(phba, pmb, mp); 737 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 738 pmb->vport = vport; 739 rc = lpfc_sli_issue_mbox (phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB)); 740 if (rc == MBX_NOT_FINISHED) 741 goto lpfc_handle_latt_free_mbuf; 742 743 /* Clear Link Attention in HA REG */ 744 spin_lock_irq(&phba->hbalock); 745 writel(HA_LATT, phba->HAregaddr); 746 readl(phba->HAregaddr); /* flush */ 747 spin_unlock_irq(&phba->hbalock); 748 749 return; 750 751 lpfc_handle_latt_free_mbuf: 752 lpfc_mbuf_free(phba, mp->virt, mp->phys); 753 lpfc_handle_latt_free_mp: 754 kfree(mp); 755 lpfc_handle_latt_free_pmb: 756 mempool_free(pmb, phba->mbox_mem_pool); 757 lpfc_handle_latt_err_exit: 758 /* Enable Link attention interrupts */ 759 spin_lock_irq(&phba->hbalock); 760 psli->sli_flag |= LPFC_PROCESS_LA; 761 control = readl(phba->HCregaddr); 762 control |= HC_LAINT_ENA; 763 writel(control, phba->HCregaddr); 764 readl(phba->HCregaddr); /* flush */ 765 766 /* Clear Link Attention in HA REG */ 767 writel(HA_LATT, phba->HAregaddr); 768 readl(phba->HAregaddr); /* flush */ 769 spin_unlock_irq(&phba->hbalock); 770 lpfc_linkdown(phba); 771 phba->link_state = LPFC_HBA_ERROR; 772 773 /* The other case is an error from issue_mbox */ 774 if (rc == -ENOMEM) 775 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 776 "%d:0300 READ_LA: no buffers\n", 777 phba->brd_no); 778 779 return; 780 } 781 782 /************************************************************************/ 783 /* */ 784 /* lpfc_parse_vpd */ 785 /* This routine will parse the VPD data */ 786 /* */ 787 /************************************************************************/ 788 static int 789 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 790 { 791 uint8_t lenlo, lenhi; 792 int Length; 793 int i, j; 794 int finished = 0; 795 int index = 0; 796 797 if (!vpd) 798 return 0; 799 800 /* Vital Product */ 801 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 802 "%d:0455 Vital Product Data: x%x x%x x%x x%x\n", 803 phba->brd_no, 804 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 805 (uint32_t) vpd[3]); 806 while (!finished && (index < (len - 4))) { 807 switch (vpd[index]) { 808 case 0x82: 809 case 0x91: 810 index += 1; 811 lenlo = vpd[index]; 812 index += 1; 813 lenhi = vpd[index]; 814 index += 1; 815 i = ((((unsigned short)lenhi) << 8) + lenlo); 816 index += i; 817 break; 818 case 0x90: 819 index += 1; 820 lenlo = vpd[index]; 821 index += 1; 822 lenhi = vpd[index]; 823 index += 1; 824 Length = ((((unsigned short)lenhi) << 8) + lenlo); 825 if (Length > len - index) 826 Length = len - index; 827 while (Length > 0) { 828 /* Look for Serial Number */ 829 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 830 index += 2; 831 i = vpd[index]; 832 index += 1; 833 j = 0; 834 Length -= (3+i); 835 while(i--) { 836 phba->SerialNumber[j++] = vpd[index++]; 837 if (j == 31) 838 break; 839 } 840 phba->SerialNumber[j] = 0; 841 continue; 842 } 843 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 844 phba->vpd_flag |= VPD_MODEL_DESC; 845 index += 2; 846 i = vpd[index]; 847 index += 1; 848 j = 0; 849 Length -= (3+i); 850 while(i--) { 851 phba->ModelDesc[j++] = vpd[index++]; 852 if (j == 255) 853 break; 854 } 855 phba->ModelDesc[j] = 0; 856 continue; 857 } 858 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 859 phba->vpd_flag |= VPD_MODEL_NAME; 860 index += 2; 861 i = vpd[index]; 862 index += 1; 863 j = 0; 864 Length -= (3+i); 865 while(i--) { 866 phba->ModelName[j++] = vpd[index++]; 867 if (j == 79) 868 break; 869 } 870 phba->ModelName[j] = 0; 871 continue; 872 } 873 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 874 phba->vpd_flag |= VPD_PROGRAM_TYPE; 875 index += 2; 876 i = vpd[index]; 877 index += 1; 878 j = 0; 879 Length -= (3+i); 880 while(i--) { 881 phba->ProgramType[j++] = vpd[index++]; 882 if (j == 255) 883 break; 884 } 885 phba->ProgramType[j] = 0; 886 continue; 887 } 888 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 889 phba->vpd_flag |= VPD_PORT; 890 index += 2; 891 i = vpd[index]; 892 index += 1; 893 j = 0; 894 Length -= (3+i); 895 while(i--) { 896 phba->Port[j++] = vpd[index++]; 897 if (j == 19) 898 break; 899 } 900 phba->Port[j] = 0; 901 continue; 902 } 903 else { 904 index += 2; 905 i = vpd[index]; 906 index += 1; 907 index += i; 908 Length -= (3 + i); 909 } 910 } 911 finished = 0; 912 break; 913 case 0x78: 914 finished = 1; 915 break; 916 default: 917 index ++; 918 break; 919 } 920 } 921 922 return(1); 923 } 924 925 static void 926 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 927 { 928 lpfc_vpd_t *vp; 929 uint16_t dev_id = phba->pcidev->device; 930 int max_speed; 931 struct { 932 char * name; 933 int max_speed; 934 char * bus; 935 } m = {"<Unknown>", 0, ""}; 936 937 if (mdp && mdp[0] != '\0' 938 && descp && descp[0] != '\0') 939 return; 940 941 if (phba->lmt & LMT_10Gb) 942 max_speed = 10; 943 else if (phba->lmt & LMT_8Gb) 944 max_speed = 8; 945 else if (phba->lmt & LMT_4Gb) 946 max_speed = 4; 947 else if (phba->lmt & LMT_2Gb) 948 max_speed = 2; 949 else 950 max_speed = 1; 951 952 vp = &phba->vpd; 953 954 switch (dev_id) { 955 case PCI_DEVICE_ID_FIREFLY: 956 m = (typeof(m)){"LP6000", max_speed, "PCI"}; 957 break; 958 case PCI_DEVICE_ID_SUPERFLY: 959 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 960 m = (typeof(m)){"LP7000", max_speed, "PCI"}; 961 else 962 m = (typeof(m)){"LP7000E", max_speed, "PCI"}; 963 break; 964 case PCI_DEVICE_ID_DRAGONFLY: 965 m = (typeof(m)){"LP8000", max_speed, "PCI"}; 966 break; 967 case PCI_DEVICE_ID_CENTAUR: 968 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 969 m = (typeof(m)){"LP9002", max_speed, "PCI"}; 970 else 971 m = (typeof(m)){"LP9000", max_speed, "PCI"}; 972 break; 973 case PCI_DEVICE_ID_RFLY: 974 m = (typeof(m)){"LP952", max_speed, "PCI"}; 975 break; 976 case PCI_DEVICE_ID_PEGASUS: 977 m = (typeof(m)){"LP9802", max_speed, "PCI-X"}; 978 break; 979 case PCI_DEVICE_ID_THOR: 980 m = (typeof(m)){"LP10000", max_speed, "PCI-X"}; 981 break; 982 case PCI_DEVICE_ID_VIPER: 983 m = (typeof(m)){"LPX1000", max_speed, "PCI-X"}; 984 break; 985 case PCI_DEVICE_ID_PFLY: 986 m = (typeof(m)){"LP982", max_speed, "PCI-X"}; 987 break; 988 case PCI_DEVICE_ID_TFLY: 989 m = (typeof(m)){"LP1050", max_speed, "PCI-X"}; 990 break; 991 case PCI_DEVICE_ID_HELIOS: 992 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"}; 993 break; 994 case PCI_DEVICE_ID_HELIOS_SCSP: 995 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"}; 996 break; 997 case PCI_DEVICE_ID_HELIOS_DCSP: 998 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"}; 999 break; 1000 case PCI_DEVICE_ID_NEPTUNE: 1001 m = (typeof(m)){"LPe1000", max_speed, "PCIe"}; 1002 break; 1003 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1004 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"}; 1005 break; 1006 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1007 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"}; 1008 break; 1009 case PCI_DEVICE_ID_BMID: 1010 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"}; 1011 break; 1012 case PCI_DEVICE_ID_BSMB: 1013 m = (typeof(m)){"LP111", max_speed, "PCI-X2"}; 1014 break; 1015 case PCI_DEVICE_ID_ZEPHYR: 1016 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1017 break; 1018 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1019 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1020 break; 1021 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1022 m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"}; 1023 break; 1024 case PCI_DEVICE_ID_ZMID: 1025 m = (typeof(m)){"LPe1150", max_speed, "PCIe"}; 1026 break; 1027 case PCI_DEVICE_ID_ZSMB: 1028 m = (typeof(m)){"LPe111", max_speed, "PCIe"}; 1029 break; 1030 case PCI_DEVICE_ID_LP101: 1031 m = (typeof(m)){"LP101", max_speed, "PCI-X"}; 1032 break; 1033 case PCI_DEVICE_ID_LP10000S: 1034 m = (typeof(m)){"LP10000-S", max_speed, "PCI"}; 1035 break; 1036 case PCI_DEVICE_ID_LP11000S: 1037 m = (typeof(m)){"LP11000-S", max_speed, 1038 "PCI-X2"}; 1039 break; 1040 case PCI_DEVICE_ID_LPE11000S: 1041 m = (typeof(m)){"LPe11000-S", max_speed, 1042 "PCIe"}; 1043 break; 1044 case PCI_DEVICE_ID_SAT: 1045 m = (typeof(m)){"LPe12000", max_speed, "PCIe"}; 1046 break; 1047 case PCI_DEVICE_ID_SAT_MID: 1048 m = (typeof(m)){"LPe1250", max_speed, "PCIe"}; 1049 break; 1050 case PCI_DEVICE_ID_SAT_SMB: 1051 m = (typeof(m)){"LPe121", max_speed, "PCIe"}; 1052 break; 1053 case PCI_DEVICE_ID_SAT_DCSP: 1054 m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"}; 1055 break; 1056 case PCI_DEVICE_ID_SAT_SCSP: 1057 m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"}; 1058 break; 1059 case PCI_DEVICE_ID_SAT_S: 1060 m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"}; 1061 break; 1062 default: 1063 m = (typeof(m)){ NULL }; 1064 break; 1065 } 1066 1067 if (mdp && mdp[0] == '\0') 1068 snprintf(mdp, 79,"%s", m.name); 1069 if (descp && descp[0] == '\0') 1070 snprintf(descp, 255, 1071 "Emulex %s %dGb %s Fibre Channel Adapter", 1072 m.name, m.max_speed, m.bus); 1073 } 1074 1075 /**************************************************/ 1076 /* lpfc_post_buffer */ 1077 /* */ 1078 /* This routine will post count buffers to the */ 1079 /* ring with the QUE_RING_BUF_CN command. This */ 1080 /* allows 3 buffers / command to be posted. */ 1081 /* Returns the number of buffers NOT posted. */ 1082 /**************************************************/ 1083 int 1084 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt, 1085 int type) 1086 { 1087 IOCB_t *icmd; 1088 struct lpfc_iocbq *iocb; 1089 struct lpfc_dmabuf *mp1, *mp2; 1090 1091 cnt += pring->missbufcnt; 1092 1093 /* While there are buffers to post */ 1094 while (cnt > 0) { 1095 /* Allocate buffer for command iocb */ 1096 iocb = lpfc_sli_get_iocbq(phba); 1097 if (iocb == NULL) { 1098 pring->missbufcnt = cnt; 1099 return cnt; 1100 } 1101 icmd = &iocb->iocb; 1102 1103 /* 2 buffers can be posted per command */ 1104 /* Allocate buffer to post */ 1105 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1106 if (mp1) 1107 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1108 &mp1->phys); 1109 if (mp1 == 0 || mp1->virt == 0) { 1110 kfree(mp1); 1111 lpfc_sli_release_iocbq(phba, iocb); 1112 pring->missbufcnt = cnt; 1113 return cnt; 1114 } 1115 1116 INIT_LIST_HEAD(&mp1->list); 1117 /* Allocate buffer to post */ 1118 if (cnt > 1) { 1119 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1120 if (mp2) 1121 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1122 &mp2->phys); 1123 if (mp2 == 0 || mp2->virt == 0) { 1124 kfree(mp2); 1125 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1126 kfree(mp1); 1127 lpfc_sli_release_iocbq(phba, iocb); 1128 pring->missbufcnt = cnt; 1129 return cnt; 1130 } 1131 1132 INIT_LIST_HEAD(&mp2->list); 1133 } else { 1134 mp2 = NULL; 1135 } 1136 1137 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1138 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1139 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1140 icmd->ulpBdeCount = 1; 1141 cnt--; 1142 if (mp2) { 1143 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1144 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1145 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1146 cnt--; 1147 icmd->ulpBdeCount = 2; 1148 } 1149 1150 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1151 icmd->ulpLe = 1; 1152 1153 if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) { 1154 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1155 kfree(mp1); 1156 cnt++; 1157 if (mp2) { 1158 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1159 kfree(mp2); 1160 cnt++; 1161 } 1162 lpfc_sli_release_iocbq(phba, iocb); 1163 pring->missbufcnt = cnt; 1164 return cnt; 1165 } 1166 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1167 if (mp2) 1168 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1169 } 1170 pring->missbufcnt = 0; 1171 return 0; 1172 } 1173 1174 /************************************************************************/ 1175 /* */ 1176 /* lpfc_post_rcv_buf */ 1177 /* This routine post initial rcv buffers to the configured rings */ 1178 /* */ 1179 /************************************************************************/ 1180 static int 1181 lpfc_post_rcv_buf(struct lpfc_hba *phba) 1182 { 1183 struct lpfc_sli *psli = &phba->sli; 1184 1185 /* Ring 0, ELS / CT buffers */ 1186 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0, 1); 1187 /* Ring 2 - FCP no buffers needed */ 1188 1189 return 0; 1190 } 1191 1192 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 1193 1194 /************************************************************************/ 1195 /* */ 1196 /* lpfc_sha_init */ 1197 /* */ 1198 /************************************************************************/ 1199 static void 1200 lpfc_sha_init(uint32_t * HashResultPointer) 1201 { 1202 HashResultPointer[0] = 0x67452301; 1203 HashResultPointer[1] = 0xEFCDAB89; 1204 HashResultPointer[2] = 0x98BADCFE; 1205 HashResultPointer[3] = 0x10325476; 1206 HashResultPointer[4] = 0xC3D2E1F0; 1207 } 1208 1209 /************************************************************************/ 1210 /* */ 1211 /* lpfc_sha_iterate */ 1212 /* */ 1213 /************************************************************************/ 1214 static void 1215 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 1216 { 1217 int t; 1218 uint32_t TEMP; 1219 uint32_t A, B, C, D, E; 1220 t = 16; 1221 do { 1222 HashWorkingPointer[t] = 1223 S(1, 1224 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 1225 8] ^ 1226 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 1227 } while (++t <= 79); 1228 t = 0; 1229 A = HashResultPointer[0]; 1230 B = HashResultPointer[1]; 1231 C = HashResultPointer[2]; 1232 D = HashResultPointer[3]; 1233 E = HashResultPointer[4]; 1234 1235 do { 1236 if (t < 20) { 1237 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 1238 } else if (t < 40) { 1239 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 1240 } else if (t < 60) { 1241 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 1242 } else { 1243 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 1244 } 1245 TEMP += S(5, A) + E + HashWorkingPointer[t]; 1246 E = D; 1247 D = C; 1248 C = S(30, B); 1249 B = A; 1250 A = TEMP; 1251 } while (++t <= 79); 1252 1253 HashResultPointer[0] += A; 1254 HashResultPointer[1] += B; 1255 HashResultPointer[2] += C; 1256 HashResultPointer[3] += D; 1257 HashResultPointer[4] += E; 1258 1259 } 1260 1261 /************************************************************************/ 1262 /* */ 1263 /* lpfc_challenge_key */ 1264 /* */ 1265 /************************************************************************/ 1266 static void 1267 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 1268 { 1269 *HashWorking = (*RandomChallenge ^ *HashWorking); 1270 } 1271 1272 /************************************************************************/ 1273 /* */ 1274 /* lpfc_hba_init */ 1275 /* */ 1276 /************************************************************************/ 1277 void 1278 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 1279 { 1280 int t; 1281 uint32_t *HashWorking; 1282 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 1283 1284 HashWorking = kmalloc(80 * sizeof(uint32_t), GFP_KERNEL); 1285 if (!HashWorking) 1286 return; 1287 1288 memset(HashWorking, 0, (80 * sizeof(uint32_t))); 1289 HashWorking[0] = HashWorking[78] = *pwwnn++; 1290 HashWorking[1] = HashWorking[79] = *pwwnn; 1291 1292 for (t = 0; t < 7; t++) 1293 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 1294 1295 lpfc_sha_init(hbainit); 1296 lpfc_sha_iterate(hbainit, HashWorking); 1297 kfree(HashWorking); 1298 } 1299 1300 static void 1301 lpfc_cleanup(struct lpfc_vport *vport) 1302 { 1303 struct lpfc_nodelist *ndlp, *next_ndlp; 1304 1305 /* clean up phba - lpfc specific */ 1306 lpfc_can_disctmo(vport); 1307 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) 1308 lpfc_nlp_put(ndlp); 1309 return; 1310 } 1311 1312 static void 1313 lpfc_establish_link_tmo(unsigned long ptr) 1314 { 1315 struct lpfc_hba *phba = (struct lpfc_hba *) ptr; 1316 struct lpfc_vport *vport = phba->pport; 1317 unsigned long iflag; 1318 1319 /* Re-establishing Link, timer expired */ 1320 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 1321 "%d:1300 Re-establishing Link, timer expired " 1322 "Data: x%x x%x\n", 1323 phba->brd_no, vport->fc_flag, 1324 vport->port_state); 1325 list_for_each_entry(vport, &phba->port_list, listentry) { 1326 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1327 1328 spin_lock_irqsave(shost->host_lock, iflag); 1329 vport->fc_flag &= ~FC_ESTABLISH_LINK; 1330 spin_unlock_irqrestore(shost->host_lock, iflag); 1331 } 1332 } 1333 1334 void 1335 lpfc_stop_vport_timers(struct lpfc_vport *vport) 1336 { 1337 del_timer_sync(&vport->els_tmofunc); 1338 del_timer_sync(&vport->fc_fdmitmo); 1339 lpfc_can_disctmo(vport); 1340 return; 1341 } 1342 1343 static void 1344 lpfc_stop_phba_timers(struct lpfc_hba *phba) 1345 { 1346 struct lpfc_vport *vport; 1347 1348 del_timer_sync(&phba->fcp_poll_timer); 1349 del_timer_sync(&phba->fc_estabtmo); 1350 list_for_each_entry(vport, &phba->port_list, listentry) 1351 lpfc_stop_vport_timers(vport); 1352 del_timer_sync(&phba->sli.mbox_tmo); 1353 del_timer_sync(&phba->fabric_block_timer); 1354 phba->hb_outstanding = 0; 1355 del_timer_sync(&phba->hb_tmofunc); 1356 return; 1357 } 1358 1359 int 1360 lpfc_online(struct lpfc_hba *phba) 1361 { 1362 struct lpfc_vport *vport = phba->pport; 1363 1364 if (!phba) 1365 return 0; 1366 1367 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 1368 return 0; 1369 1370 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1371 "%d:0458 Bring Adapter online\n", 1372 phba->brd_no); 1373 1374 lpfc_block_mgmt_io(phba); 1375 1376 if (!lpfc_sli_queue_setup(phba)) { 1377 lpfc_unblock_mgmt_io(phba); 1378 return 1; 1379 } 1380 1381 if (lpfc_sli_hba_setup(phba)) { /* Initialize the HBA */ 1382 lpfc_unblock_mgmt_io(phba); 1383 return 1; 1384 } 1385 1386 list_for_each_entry(vport, &phba->port_list, listentry) { 1387 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1388 spin_lock_irq(shost->host_lock); 1389 vport->fc_flag &= ~FC_OFFLINE_MODE; 1390 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 1391 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 1392 spin_unlock_irq(shost->host_lock); 1393 } 1394 1395 lpfc_unblock_mgmt_io(phba); 1396 return 0; 1397 } 1398 1399 void 1400 lpfc_block_mgmt_io(struct lpfc_hba * phba) 1401 { 1402 unsigned long iflag; 1403 1404 spin_lock_irqsave(&phba->hbalock, iflag); 1405 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 1406 spin_unlock_irqrestore(&phba->hbalock, iflag); 1407 } 1408 1409 void 1410 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 1411 { 1412 unsigned long iflag; 1413 1414 spin_lock_irqsave(&phba->hbalock, iflag); 1415 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 1416 spin_unlock_irqrestore(&phba->hbalock, iflag); 1417 } 1418 1419 void 1420 lpfc_offline_prep(struct lpfc_hba * phba) 1421 { 1422 struct lpfc_vport *vport = phba->pport; 1423 struct lpfc_nodelist *ndlp, *next_ndlp; 1424 1425 if (vport->fc_flag & FC_OFFLINE_MODE) 1426 return; 1427 1428 lpfc_block_mgmt_io(phba); 1429 1430 lpfc_linkdown(phba); 1431 1432 /* Issue an unreg_login to all nodes */ 1433 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) 1434 if (ndlp->nlp_state != NLP_STE_UNUSED_NODE) 1435 lpfc_unreg_rpi(vport, ndlp); 1436 1437 lpfc_sli_flush_mbox_queue(phba); 1438 } 1439 1440 void 1441 lpfc_offline(struct lpfc_hba *phba) 1442 { 1443 struct lpfc_vport *vport = phba->pport; 1444 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1445 struct lpfc_vport *port_iterator; 1446 1447 if (vport->fc_flag & FC_OFFLINE_MODE) 1448 return; 1449 1450 /* stop all timers associated with this hba */ 1451 lpfc_stop_phba_timers(phba); 1452 list_for_each_entry(port_iterator, &phba->port_list, listentry) { 1453 port_iterator->work_port_events = 0; 1454 } 1455 1456 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1457 "%d:0460 Bring Adapter offline\n", 1458 phba->brd_no); 1459 1460 /* Bring down the SLI Layer and cleanup. The HBA is offline 1461 now. */ 1462 lpfc_sli_hba_down(phba); 1463 spin_lock_irq(&phba->hbalock); 1464 phba->work_ha = 0; 1465 vport->fc_flag |= FC_OFFLINE_MODE; 1466 spin_unlock_irq(&phba->hbalock); 1467 list_for_each_entry(port_iterator, &phba->port_list, listentry) { 1468 shost = lpfc_shost_from_vport(port_iterator); 1469 1470 lpfc_cleanup(port_iterator); 1471 spin_lock_irq(shost->host_lock); 1472 vport->work_port_events = 0; 1473 vport->fc_flag |= FC_OFFLINE_MODE; 1474 spin_unlock_irq(shost->host_lock); 1475 } 1476 } 1477 1478 /****************************************************************************** 1479 * Function name: lpfc_scsi_free 1480 * 1481 * Description: Called from lpfc_pci_remove_one free internal driver resources 1482 * 1483 ******************************************************************************/ 1484 static int 1485 lpfc_scsi_free(struct lpfc_hba *phba) 1486 { 1487 struct lpfc_scsi_buf *sb, *sb_next; 1488 struct lpfc_iocbq *io, *io_next; 1489 1490 spin_lock_irq(&phba->hbalock); 1491 /* Release all the lpfc_scsi_bufs maintained by this host. */ 1492 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 1493 list_del(&sb->list); 1494 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 1495 sb->dma_handle); 1496 kfree(sb); 1497 phba->total_scsi_bufs--; 1498 } 1499 1500 /* Release all the lpfc_iocbq entries maintained by this host. */ 1501 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 1502 list_del(&io->list); 1503 kfree(io); 1504 phba->total_iocbq_bufs--; 1505 } 1506 1507 spin_unlock_irq(&phba->hbalock); 1508 1509 return 0; 1510 } 1511 1512 1513 struct lpfc_vport * 1514 lpfc_create_port(struct lpfc_hba *phba, int instance, struct fc_vport *fc_vport) 1515 { 1516 struct lpfc_vport *vport; 1517 struct Scsi_Host *shost; 1518 int error = 0; 1519 1520 shost = scsi_host_alloc(&lpfc_template, sizeof(struct lpfc_vport)); 1521 if (!shost) 1522 goto out; 1523 1524 vport = (struct lpfc_vport *) shost->hostdata; 1525 vport->phba = phba; 1526 1527 vport->load_flag |= FC_LOADING; 1528 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 1529 1530 shost->unique_id = instance; 1531 shost->max_id = LPFC_MAX_TARGET; 1532 shost->max_lun = phba->cfg_max_luns; 1533 shost->this_id = -1; 1534 shost->max_cmd_len = 16; 1535 /* 1536 * Set initial can_queue value since 0 is no longer supported and 1537 * scsi_add_host will fail. This will be adjusted later based on the 1538 * max xri value determined in hba setup. 1539 */ 1540 shost->can_queue = phba->cfg_hba_queue_depth - 10; 1541 if (fc_vport != NULL) { 1542 shost->transportt = lpfc_vport_transport_template; 1543 vport->port_type = LPFC_NPIV_PORT; 1544 } else { 1545 shost->transportt = lpfc_transport_template; 1546 vport->port_type = LPFC_PHYSICAL_PORT; 1547 } 1548 1549 /* Initialize all internally managed lists. */ 1550 INIT_LIST_HEAD(&vport->fc_nodes); 1551 spin_lock_init(&vport->work_port_lock); 1552 1553 init_timer(&vport->fc_disctmo); 1554 vport->fc_disctmo.function = lpfc_disc_timeout; 1555 vport->fc_disctmo.data = (unsigned long)vport; 1556 1557 init_timer(&vport->fc_fdmitmo); 1558 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 1559 vport->fc_fdmitmo.data = (unsigned long)vport; 1560 1561 init_timer(&vport->els_tmofunc); 1562 vport->els_tmofunc.function = lpfc_els_timeout; 1563 vport->els_tmofunc.data = (unsigned long)vport; 1564 1565 if (fc_vport != NULL) { 1566 error = scsi_add_host(shost, &fc_vport->dev); 1567 } else { 1568 error = scsi_add_host(shost, &phba->pcidev->dev); 1569 } 1570 if (error) 1571 goto out_put_shost; 1572 1573 list_add_tail(&vport->listentry, &phba->port_list); 1574 return vport; 1575 1576 out_put_shost: 1577 scsi_host_put(shost); 1578 out: 1579 return NULL; 1580 } 1581 1582 void 1583 destroy_port(struct lpfc_vport *vport) 1584 { 1585 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1586 struct lpfc_hba *phba = vport->phba; 1587 1588 kfree(vport->vname); 1589 1590 lpfc_debugfs_terminate(vport); 1591 fc_remove_host(shost); 1592 scsi_remove_host(shost); 1593 1594 spin_lock_irq(&phba->hbalock); 1595 list_del_init(&vport->listentry); 1596 spin_unlock_irq(&phba->hbalock); 1597 1598 lpfc_cleanup(vport); 1599 return; 1600 } 1601 1602 int 1603 lpfc_get_instance(void) 1604 { 1605 int instance = 0; 1606 1607 /* Assign an unused number */ 1608 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 1609 return -1; 1610 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 1611 return -1; 1612 return instance; 1613 } 1614 1615 /* 1616 * Note: there is no scan_start function as adapter initialization 1617 * will have asynchronously kicked off the link initialization. 1618 */ 1619 1620 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 1621 { 1622 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1623 struct lpfc_hba *phba = vport->phba; 1624 int stat = 0; 1625 1626 spin_lock_irq(shost->host_lock); 1627 1628 if (vport->fc_flag & FC_UNLOADING) { 1629 stat = 1; 1630 goto finished; 1631 } 1632 if (time >= 30 * HZ) { 1633 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1634 "%d:0461 Scanning longer than 30 " 1635 "seconds. Continuing initialization\n", 1636 phba->brd_no); 1637 stat = 1; 1638 goto finished; 1639 } 1640 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 1641 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1642 "%d:0465 Link down longer than 15 " 1643 "seconds. Continuing initialization\n", 1644 phba->brd_no); 1645 stat = 1; 1646 goto finished; 1647 } 1648 1649 if (vport->port_state != LPFC_VPORT_READY) 1650 goto finished; 1651 if (vport->num_disc_nodes || vport->fc_prli_sent) 1652 goto finished; 1653 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 1654 goto finished; 1655 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 1656 goto finished; 1657 1658 stat = 1; 1659 1660 finished: 1661 spin_unlock_irq(shost->host_lock); 1662 return stat; 1663 } 1664 1665 void lpfc_host_attrib_init(struct Scsi_Host *shost) 1666 { 1667 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1668 struct lpfc_hba *phba = vport->phba; 1669 /* 1670 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 1671 */ 1672 1673 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 1674 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 1675 fc_host_supported_classes(shost) = FC_COS_CLASS3; 1676 1677 memset(fc_host_supported_fc4s(shost), 0, 1678 sizeof(fc_host_supported_fc4s(shost))); 1679 fc_host_supported_fc4s(shost)[2] = 1; 1680 fc_host_supported_fc4s(shost)[7] = 1; 1681 1682 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 1683 sizeof fc_host_symbolic_name(shost)); 1684 1685 fc_host_supported_speeds(shost) = 0; 1686 if (phba->lmt & LMT_10Gb) 1687 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 1688 if (phba->lmt & LMT_4Gb) 1689 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 1690 if (phba->lmt & LMT_2Gb) 1691 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 1692 if (phba->lmt & LMT_1Gb) 1693 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 1694 1695 fc_host_maxframe_size(shost) = 1696 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 1697 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 1698 1699 /* This value is also unchanging */ 1700 memset(fc_host_active_fc4s(shost), 0, 1701 sizeof(fc_host_active_fc4s(shost))); 1702 fc_host_active_fc4s(shost)[2] = 1; 1703 fc_host_active_fc4s(shost)[7] = 1; 1704 1705 fc_host_max_npiv_vports(shost) = phba->max_vpi; 1706 spin_lock_irq(shost->host_lock); 1707 vport->fc_flag &= ~FC_LOADING; 1708 spin_unlock_irq(shost->host_lock); 1709 } 1710 1711 static int __devinit 1712 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 1713 { 1714 struct lpfc_vport *vport = NULL; 1715 struct lpfc_hba *phba; 1716 struct lpfc_sli *psli; 1717 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 1718 struct Scsi_Host *shost = NULL; 1719 unsigned long bar0map_len, bar2map_len; 1720 int error = -ENODEV; 1721 int i; 1722 uint16_t iotag; 1723 1724 if (pci_enable_device(pdev)) 1725 goto out; 1726 if (pci_request_regions(pdev, LPFC_DRIVER_NAME)) 1727 goto out_disable_device; 1728 1729 phba = kzalloc(sizeof (struct lpfc_hba), GFP_KERNEL); 1730 if (!phba) 1731 goto out_release_regions; 1732 1733 spin_lock_init(&phba->hbalock); 1734 1735 phba->pcidev = pdev; 1736 1737 /* Assign an unused board number */ 1738 if ((phba->brd_no = lpfc_get_instance()) < 0) 1739 goto out_free_phba; 1740 1741 INIT_LIST_HEAD(&phba->port_list); 1742 INIT_LIST_HEAD(&phba->hbq_buffer_list); 1743 /* 1744 * Get all the module params for configuring this host and then 1745 * establish the host. 1746 */ 1747 lpfc_get_cfgparam(phba); 1748 phba->max_vpi = LPFC_MAX_VPI; 1749 1750 /* Initialize timers used by driver */ 1751 init_timer(&phba->fc_estabtmo); 1752 phba->fc_estabtmo.function = lpfc_establish_link_tmo; 1753 phba->fc_estabtmo.data = (unsigned long)phba; 1754 1755 init_timer(&phba->hb_tmofunc); 1756 phba->hb_tmofunc.function = lpfc_hb_timeout; 1757 phba->hb_tmofunc.data = (unsigned long)phba; 1758 1759 psli = &phba->sli; 1760 init_timer(&psli->mbox_tmo); 1761 psli->mbox_tmo.function = lpfc_mbox_timeout; 1762 psli->mbox_tmo.data = (unsigned long) phba; 1763 init_timer(&phba->fcp_poll_timer); 1764 phba->fcp_poll_timer.function = lpfc_poll_timeout; 1765 phba->fcp_poll_timer.data = (unsigned long) phba; 1766 init_timer(&phba->fabric_block_timer); 1767 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 1768 phba->fabric_block_timer.data = (unsigned long) phba; 1769 1770 pci_set_master(pdev); 1771 retval = pci_set_mwi(pdev); 1772 if (retval) 1773 dev_printk(KERN_WARNING, &pdev->dev, 1774 "Warning: pci_set_mwi returned %d\n", retval); 1775 1776 if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0) 1777 if (pci_set_dma_mask(phba->pcidev, DMA_32BIT_MASK) != 0) 1778 goto out_idr_remove; 1779 1780 /* 1781 * Get the bus address of Bar0 and Bar2 and the number of bytes 1782 * required by each mapping. 1783 */ 1784 phba->pci_bar0_map = pci_resource_start(phba->pcidev, 0); 1785 bar0map_len = pci_resource_len(phba->pcidev, 0); 1786 1787 phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2); 1788 bar2map_len = pci_resource_len(phba->pcidev, 2); 1789 1790 /* Map HBA SLIM to a kernel virtual address. */ 1791 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 1792 if (!phba->slim_memmap_p) { 1793 error = -ENODEV; 1794 dev_printk(KERN_ERR, &pdev->dev, 1795 "ioremap failed for SLIM memory.\n"); 1796 goto out_idr_remove; 1797 } 1798 1799 /* Map HBA Control Registers to a kernel virtual address. */ 1800 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 1801 if (!phba->ctrl_regs_memmap_p) { 1802 error = -ENODEV; 1803 dev_printk(KERN_ERR, &pdev->dev, 1804 "ioremap failed for HBA control registers.\n"); 1805 goto out_iounmap_slim; 1806 } 1807 1808 /* Allocate memory for SLI-2 structures */ 1809 phba->slim2p = dma_alloc_coherent(&phba->pcidev->dev, SLI2_SLIM_SIZE, 1810 &phba->slim2p_mapping, GFP_KERNEL); 1811 if (!phba->slim2p) 1812 goto out_iounmap; 1813 1814 memset(phba->slim2p, 0, SLI2_SLIM_SIZE); 1815 1816 phba->hbqslimp.virt = dma_alloc_coherent(&phba->pcidev->dev, 1817 lpfc_sli_hbq_size(), 1818 &phba->hbqslimp.phys, 1819 GFP_KERNEL); 1820 if (!phba->hbqslimp.virt) 1821 goto out_free_slim; 1822 1823 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 1824 1825 /* Initialize the SLI Layer to run with lpfc HBAs. */ 1826 lpfc_sli_setup(phba); 1827 lpfc_sli_queue_setup(phba); 1828 1829 error = lpfc_mem_alloc(phba); 1830 if (error) 1831 goto out_free_hbqslimp; 1832 1833 /* Initialize and populate the iocb list per host. */ 1834 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 1835 for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) { 1836 iocbq_entry = kmalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 1837 if (iocbq_entry == NULL) { 1838 printk(KERN_ERR "%s: only allocated %d iocbs of " 1839 "expected %d count. Unloading driver.\n", 1840 __FUNCTION__, i, LPFC_IOCB_LIST_CNT); 1841 error = -ENOMEM; 1842 goto out_free_iocbq; 1843 } 1844 1845 memset(iocbq_entry, 0, sizeof(struct lpfc_iocbq)); 1846 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 1847 if (iotag == 0) { 1848 kfree (iocbq_entry); 1849 printk(KERN_ERR "%s: failed to allocate IOTAG. " 1850 "Unloading driver.\n", 1851 __FUNCTION__); 1852 error = -ENOMEM; 1853 goto out_free_iocbq; 1854 } 1855 1856 spin_lock_irq(&phba->hbalock); 1857 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 1858 phba->total_iocbq_bufs++; 1859 spin_unlock_irq(&phba->hbalock); 1860 } 1861 1862 /* Initialize HBA structure */ 1863 phba->fc_edtov = FF_DEF_EDTOV; 1864 phba->fc_ratov = FF_DEF_RATOV; 1865 phba->fc_altov = FF_DEF_ALTOV; 1866 phba->fc_arbtov = FF_DEF_ARBTOV; 1867 1868 INIT_LIST_HEAD(&phba->work_list); 1869 phba->work_ha_mask = (HA_ERATT|HA_MBATT|HA_LATT); 1870 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 1871 1872 /* Startup the kernel thread for this host adapter. */ 1873 phba->worker_thread = kthread_run(lpfc_do_work, phba, 1874 "lpfc_worker_%d", phba->brd_no); 1875 if (IS_ERR(phba->worker_thread)) { 1876 error = PTR_ERR(phba->worker_thread); 1877 goto out_free_iocbq; 1878 } 1879 1880 /* Initialize the list of scsi buffers used by driver for scsi IO. */ 1881 spin_lock_init(&phba->scsi_buf_list_lock); 1882 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 1883 1884 /* Initialize list of fabric iocbs */ 1885 INIT_LIST_HEAD(&phba->fabric_iocb_list); 1886 1887 vport = lpfc_create_port(phba, phba->brd_no, NULL); 1888 if (!vport) 1889 goto out_kthread_stop; 1890 1891 shost = lpfc_shost_from_vport(vport); 1892 phba->pport = vport; 1893 lpfc_debugfs_initialize(vport); 1894 1895 pci_set_drvdata(pdev, shost); 1896 1897 if (phba->cfg_use_msi) { 1898 error = pci_enable_msi(phba->pcidev); 1899 if (error) 1900 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "%d:0452 " 1901 "Enable MSI failed, continuing with " 1902 "IRQ\n", phba->brd_no); 1903 } 1904 1905 error = request_irq(phba->pcidev->irq, lpfc_intr_handler, IRQF_SHARED, 1906 LPFC_DRIVER_NAME, phba); 1907 if (error) { 1908 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1909 "%d:0451 Enable interrupt handler failed\n", 1910 phba->brd_no); 1911 goto out_disable_msi; 1912 } 1913 1914 phba->MBslimaddr = phba->slim_memmap_p; 1915 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 1916 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 1917 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 1918 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 1919 1920 if (lpfc_alloc_sysfs_attr(vport)) 1921 goto out_free_irq; 1922 1923 if (lpfc_sli_hba_setup(phba)) 1924 goto out_remove_device; 1925 1926 /* 1927 * hba setup may have changed the hba_queue_depth so we need to adjust 1928 * the value of can_queue. 1929 */ 1930 shost->can_queue = phba->cfg_hba_queue_depth - 10; 1931 1932 lpfc_host_attrib_init(shost); 1933 1934 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 1935 spin_lock_irq(shost->host_lock); 1936 lpfc_poll_start_timer(phba); 1937 spin_unlock_irq(shost->host_lock); 1938 } 1939 1940 scsi_scan_host(shost); 1941 1942 return 0; 1943 1944 out_remove_device: 1945 lpfc_free_sysfs_attr(vport); 1946 spin_lock_irq(shost->host_lock); 1947 vport->fc_flag |= FC_UNLOADING; 1948 spin_unlock_irq(shost->host_lock); 1949 out_free_irq: 1950 lpfc_stop_phba_timers(phba); 1951 phba->pport->work_port_events = 0; 1952 free_irq(phba->pcidev->irq, phba); 1953 out_disable_msi: 1954 pci_disable_msi(phba->pcidev); 1955 destroy_port(vport); 1956 out_kthread_stop: 1957 kthread_stop(phba->worker_thread); 1958 out_free_iocbq: 1959 list_for_each_entry_safe(iocbq_entry, iocbq_next, 1960 &phba->lpfc_iocb_list, list) { 1961 kfree(iocbq_entry); 1962 phba->total_iocbq_bufs--; 1963 } 1964 lpfc_mem_free(phba); 1965 out_free_hbqslimp: 1966 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), phba->hbqslimp.virt, 1967 phba->hbqslimp.phys); 1968 out_free_slim: 1969 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, phba->slim2p, 1970 phba->slim2p_mapping); 1971 out_iounmap: 1972 iounmap(phba->ctrl_regs_memmap_p); 1973 out_iounmap_slim: 1974 iounmap(phba->slim_memmap_p); 1975 out_idr_remove: 1976 idr_remove(&lpfc_hba_index, phba->brd_no); 1977 out_free_phba: 1978 kfree(phba); 1979 out_release_regions: 1980 pci_release_regions(pdev); 1981 out_disable_device: 1982 pci_disable_device(pdev); 1983 out: 1984 pci_set_drvdata(pdev, NULL); 1985 if (shost) 1986 scsi_host_put(shost); 1987 return error; 1988 } 1989 1990 static void __devexit 1991 lpfc_pci_remove_one(struct pci_dev *pdev) 1992 { 1993 struct Scsi_Host *shost = pci_get_drvdata(pdev); 1994 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1995 struct lpfc_hba *phba = vport->phba; 1996 struct lpfc_vport *port_iterator; 1997 list_for_each_entry(port_iterator, &phba->port_list, listentry) 1998 port_iterator->load_flag |= FC_UNLOADING; 1999 2000 kfree(vport->vname); 2001 lpfc_free_sysfs_attr(vport); 2002 2003 fc_remove_host(shost); 2004 scsi_remove_host(shost); 2005 2006 /* 2007 * Bring down the SLI Layer. This step disable all interrupts, 2008 * clears the rings, discards all mailbox commands, and resets 2009 * the HBA. 2010 */ 2011 lpfc_sli_hba_down(phba); 2012 lpfc_sli_brdrestart(phba); 2013 2014 lpfc_stop_phba_timers(phba); 2015 spin_lock_irq(&phba->hbalock); 2016 list_del_init(&vport->listentry); 2017 spin_unlock_irq(&phba->hbalock); 2018 2019 2020 lpfc_debugfs_terminate(vport); 2021 lpfc_cleanup(vport); 2022 2023 kthread_stop(phba->worker_thread); 2024 2025 /* Release the irq reservation */ 2026 free_irq(phba->pcidev->irq, phba); 2027 pci_disable_msi(phba->pcidev); 2028 2029 pci_set_drvdata(pdev, NULL); 2030 scsi_host_put(shost); 2031 2032 /* 2033 * Call scsi_free before mem_free since scsi bufs are released to their 2034 * corresponding pools here. 2035 */ 2036 lpfc_scsi_free(phba); 2037 lpfc_mem_free(phba); 2038 2039 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), phba->hbqslimp.virt, 2040 phba->hbqslimp.phys); 2041 2042 /* Free resources associated with SLI2 interface */ 2043 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 2044 phba->slim2p, phba->slim2p_mapping); 2045 2046 /* unmap adapter SLIM and Control Registers */ 2047 iounmap(phba->ctrl_regs_memmap_p); 2048 iounmap(phba->slim_memmap_p); 2049 2050 idr_remove(&lpfc_hba_index, phba->brd_no); 2051 2052 kfree(phba); 2053 2054 pci_release_regions(pdev); 2055 pci_disable_device(pdev); 2056 } 2057 2058 /** 2059 * lpfc_io_error_detected - called when PCI error is detected 2060 * @pdev: Pointer to PCI device 2061 * @state: The current pci conneection state 2062 * 2063 * This function is called after a PCI bus error affecting 2064 * this device has been detected. 2065 */ 2066 static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev, 2067 pci_channel_state_t state) 2068 { 2069 struct Scsi_Host *host = pci_get_drvdata(pdev); 2070 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata; 2071 struct lpfc_sli *psli = &phba->sli; 2072 struct lpfc_sli_ring *pring; 2073 2074 if (state == pci_channel_io_perm_failure) 2075 return PCI_ERS_RESULT_DISCONNECT; 2076 2077 pci_disable_device(pdev); 2078 /* 2079 * There may be I/Os dropped by the firmware. 2080 * Error iocb (I/O) on txcmplq and let the SCSI layer 2081 * retry it after re-establishing link. 2082 */ 2083 pring = &psli->ring[psli->fcp_ring]; 2084 lpfc_sli_abort_iocb_ring(phba, pring); 2085 2086 /* Request a slot reset. */ 2087 return PCI_ERS_RESULT_NEED_RESET; 2088 } 2089 2090 /** 2091 * lpfc_io_slot_reset - called after the pci bus has been reset. 2092 * @pdev: Pointer to PCI device 2093 * 2094 * Restart the card from scratch, as if from a cold-boot. 2095 */ 2096 static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev) 2097 { 2098 struct Scsi_Host *host = pci_get_drvdata(pdev); 2099 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata; 2100 struct lpfc_sli *psli = &phba->sli; 2101 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 2102 2103 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 2104 if (pci_enable_device_bars(pdev, bars)) { 2105 printk(KERN_ERR "lpfc: Cannot re-enable " 2106 "PCI device after reset.\n"); 2107 return PCI_ERS_RESULT_DISCONNECT; 2108 } 2109 2110 pci_set_master(pdev); 2111 2112 /* Re-establishing Link */ 2113 spin_lock_irq(host->host_lock); 2114 phba->pport->fc_flag |= FC_ESTABLISH_LINK; 2115 spin_unlock_irq(host->host_lock); 2116 2117 spin_lock_irq(&phba->hbalock); 2118 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 2119 spin_unlock_irq(&phba->hbalock); 2120 2121 2122 /* Take device offline; this will perform cleanup */ 2123 lpfc_offline(phba); 2124 lpfc_sli_brdrestart(phba); 2125 2126 return PCI_ERS_RESULT_RECOVERED; 2127 } 2128 2129 /** 2130 * lpfc_io_resume - called when traffic can start flowing again. 2131 * @pdev: Pointer to PCI device 2132 * 2133 * This callback is called when the error recovery driver tells us that 2134 * its OK to resume normal operation. 2135 */ 2136 static void lpfc_io_resume(struct pci_dev *pdev) 2137 { 2138 struct Scsi_Host *host = pci_get_drvdata(pdev); 2139 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata; 2140 2141 if (lpfc_online(phba) == 0) { 2142 mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60); 2143 } 2144 } 2145 2146 static struct pci_device_id lpfc_id_table[] = { 2147 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 2148 PCI_ANY_ID, PCI_ANY_ID, }, 2149 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 2150 PCI_ANY_ID, PCI_ANY_ID, }, 2151 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 2152 PCI_ANY_ID, PCI_ANY_ID, }, 2153 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 2154 PCI_ANY_ID, PCI_ANY_ID, }, 2155 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 2156 PCI_ANY_ID, PCI_ANY_ID, }, 2157 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 2158 PCI_ANY_ID, PCI_ANY_ID, }, 2159 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 2160 PCI_ANY_ID, PCI_ANY_ID, }, 2161 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 2162 PCI_ANY_ID, PCI_ANY_ID, }, 2163 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 2164 PCI_ANY_ID, PCI_ANY_ID, }, 2165 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 2166 PCI_ANY_ID, PCI_ANY_ID, }, 2167 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 2168 PCI_ANY_ID, PCI_ANY_ID, }, 2169 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 2170 PCI_ANY_ID, PCI_ANY_ID, }, 2171 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 2172 PCI_ANY_ID, PCI_ANY_ID, }, 2173 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 2174 PCI_ANY_ID, PCI_ANY_ID, }, 2175 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 2176 PCI_ANY_ID, PCI_ANY_ID, }, 2177 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 2178 PCI_ANY_ID, PCI_ANY_ID, }, 2179 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 2180 PCI_ANY_ID, PCI_ANY_ID, }, 2181 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 2182 PCI_ANY_ID, PCI_ANY_ID, }, 2183 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 2184 PCI_ANY_ID, PCI_ANY_ID, }, 2185 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 2186 PCI_ANY_ID, PCI_ANY_ID, }, 2187 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 2188 PCI_ANY_ID, PCI_ANY_ID, }, 2189 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 2190 PCI_ANY_ID, PCI_ANY_ID, }, 2191 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 2192 PCI_ANY_ID, PCI_ANY_ID, }, 2193 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 2194 PCI_ANY_ID, PCI_ANY_ID, }, 2195 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 2196 PCI_ANY_ID, PCI_ANY_ID, }, 2197 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 2198 PCI_ANY_ID, PCI_ANY_ID, }, 2199 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 2200 PCI_ANY_ID, PCI_ANY_ID, }, 2201 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 2202 PCI_ANY_ID, PCI_ANY_ID, }, 2203 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 2204 PCI_ANY_ID, PCI_ANY_ID, }, 2205 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 2206 PCI_ANY_ID, PCI_ANY_ID, }, 2207 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 2208 PCI_ANY_ID, PCI_ANY_ID, }, 2209 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 2210 PCI_ANY_ID, PCI_ANY_ID, }, 2211 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 2212 PCI_ANY_ID, PCI_ANY_ID, }, 2213 { 0 } 2214 }; 2215 2216 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 2217 2218 static struct pci_error_handlers lpfc_err_handler = { 2219 .error_detected = lpfc_io_error_detected, 2220 .slot_reset = lpfc_io_slot_reset, 2221 .resume = lpfc_io_resume, 2222 }; 2223 2224 static struct pci_driver lpfc_driver = { 2225 .name = LPFC_DRIVER_NAME, 2226 .id_table = lpfc_id_table, 2227 .probe = lpfc_pci_probe_one, 2228 .remove = __devexit_p(lpfc_pci_remove_one), 2229 .err_handler = &lpfc_err_handler, 2230 }; 2231 2232 static int __init 2233 lpfc_init(void) 2234 { 2235 int error = 0; 2236 2237 printk(LPFC_MODULE_DESC "\n"); 2238 printk(LPFC_COPYRIGHT "\n"); 2239 2240 lpfc_transport_template = 2241 fc_attach_transport(&lpfc_transport_functions); 2242 lpfc_vport_transport_template = 2243 fc_attach_transport(&lpfc_vport_transport_functions); 2244 if (!lpfc_transport_template || !lpfc_vport_transport_template) 2245 return -ENOMEM; 2246 error = pci_register_driver(&lpfc_driver); 2247 if (error) { 2248 fc_release_transport(lpfc_transport_template); 2249 fc_release_transport(lpfc_vport_transport_template); 2250 } 2251 2252 return error; 2253 } 2254 2255 static void __exit 2256 lpfc_exit(void) 2257 { 2258 pci_unregister_driver(&lpfc_driver); 2259 fc_release_transport(lpfc_transport_template); 2260 fc_release_transport(lpfc_vport_transport_template); 2261 } 2262 2263 module_init(lpfc_init); 2264 module_exit(lpfc_exit); 2265 MODULE_LICENSE("GPL"); 2266 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 2267 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 2268 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 2269