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 47 static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int); 48 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 49 static int lpfc_post_rcv_buf(struct lpfc_hba *); 50 51 static struct scsi_transport_template *lpfc_transport_template = NULL; 52 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 53 static DEFINE_IDR(lpfc_hba_index); 54 55 /************************************************************************/ 56 /* */ 57 /* lpfc_config_port_prep */ 58 /* This routine will do LPFC initialization prior to the */ 59 /* CONFIG_PORT mailbox command. This will be initialized */ 60 /* as a SLI layer callback routine. */ 61 /* This routine returns 0 on success or -ERESTART if it wants */ 62 /* the SLI layer to reset the HBA and try again. Any */ 63 /* other return value indicates an error. */ 64 /* */ 65 /************************************************************************/ 66 int 67 lpfc_config_port_prep(struct lpfc_hba *phba) 68 { 69 lpfc_vpd_t *vp = &phba->vpd; 70 int i = 0, rc; 71 LPFC_MBOXQ_t *pmb; 72 MAILBOX_t *mb; 73 char *lpfc_vpd_data = NULL; 74 uint16_t offset = 0; 75 static char licensed[56] = 76 "key unlock for use with gnu public licensed code only\0"; 77 static int init_key = 1; 78 79 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 80 if (!pmb) { 81 phba->link_state = LPFC_HBA_ERROR; 82 return -ENOMEM; 83 } 84 85 mb = &pmb->mb; 86 phba->link_state = LPFC_INIT_MBX_CMDS; 87 88 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 89 if (init_key) { 90 uint32_t *ptext = (uint32_t *) licensed; 91 92 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 93 *ptext = cpu_to_be32(*ptext); 94 init_key = 0; 95 } 96 97 lpfc_read_nv(phba, pmb); 98 memset((char*)mb->un.varRDnvp.rsvd3, 0, 99 sizeof (mb->un.varRDnvp.rsvd3)); 100 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 101 sizeof (licensed)); 102 103 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 104 105 if (rc != MBX_SUCCESS) { 106 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 107 "0324 Config Port initialization " 108 "error, mbxCmd x%x READ_NVPARM, " 109 "mbxStatus x%x\n", 110 mb->mbxCommand, mb->mbxStatus); 111 mempool_free(pmb, phba->mbox_mem_pool); 112 return -ERESTART; 113 } 114 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 115 sizeof(phba->wwnn)); 116 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 117 sizeof(phba->wwpn)); 118 } 119 120 phba->sli3_options = 0x0; 121 122 /* Setup and issue mailbox READ REV command */ 123 lpfc_read_rev(phba, pmb); 124 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 125 if (rc != MBX_SUCCESS) { 126 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 127 "0439 Adapter failed to init, mbxCmd x%x " 128 "READ_REV, mbxStatus x%x\n", 129 mb->mbxCommand, mb->mbxStatus); 130 mempool_free( pmb, phba->mbox_mem_pool); 131 return -ERESTART; 132 } 133 134 135 /* 136 * The value of rr must be 1 since the driver set the cv field to 1. 137 * This setting requires the FW to set all revision fields. 138 */ 139 if (mb->un.varRdRev.rr == 0) { 140 vp->rev.rBit = 0; 141 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 142 "0440 Adapter failed to init, READ_REV has " 143 "missing revision information.\n"); 144 mempool_free(pmb, phba->mbox_mem_pool); 145 return -ERESTART; 146 } 147 148 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) 149 return -EINVAL; 150 151 /* Save information as VPD data */ 152 vp->rev.rBit = 1; 153 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 154 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 155 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 156 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 157 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 158 vp->rev.biuRev = mb->un.varRdRev.biuRev; 159 vp->rev.smRev = mb->un.varRdRev.smRev; 160 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 161 vp->rev.endecRev = mb->un.varRdRev.endecRev; 162 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 163 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 164 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 165 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 166 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 167 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 168 169 /* If the sli feature level is less then 9, we must 170 * tear down all RPIs and VPIs on link down if NPIV 171 * is enabled. 172 */ 173 if (vp->rev.feaLevelHigh < 9) 174 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 175 176 if (lpfc_is_LC_HBA(phba->pcidev->device)) 177 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 178 sizeof (phba->RandomData)); 179 180 /* Get adapter VPD information */ 181 pmb->context2 = kmalloc(DMP_RSP_SIZE, GFP_KERNEL); 182 if (!pmb->context2) 183 goto out_free_mbox; 184 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 185 if (!lpfc_vpd_data) 186 goto out_free_context2; 187 188 do { 189 lpfc_dump_mem(phba, pmb, offset); 190 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 191 192 if (rc != MBX_SUCCESS) { 193 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 194 "0441 VPD not present on adapter, " 195 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 196 mb->mbxCommand, mb->mbxStatus); 197 mb->un.varDmp.word_cnt = 0; 198 } 199 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 200 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 201 lpfc_sli_pcimem_bcopy(pmb->context2, lpfc_vpd_data + offset, 202 mb->un.varDmp.word_cnt); 203 offset += mb->un.varDmp.word_cnt; 204 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 205 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 206 207 kfree(lpfc_vpd_data); 208 out_free_context2: 209 kfree(pmb->context2); 210 out_free_mbox: 211 mempool_free(pmb, phba->mbox_mem_pool); 212 return 0; 213 } 214 215 /************************************************************************/ 216 /* */ 217 /* lpfc_config_port_post */ 218 /* This routine will do LPFC initialization after the */ 219 /* CONFIG_PORT mailbox command. This will be initialized */ 220 /* as a SLI layer callback routine. */ 221 /* This routine returns 0 on success. Any other return value */ 222 /* indicates an error. */ 223 /* */ 224 /************************************************************************/ 225 int 226 lpfc_config_port_post(struct lpfc_hba *phba) 227 { 228 struct lpfc_vport *vport = phba->pport; 229 LPFC_MBOXQ_t *pmb; 230 MAILBOX_t *mb; 231 struct lpfc_dmabuf *mp; 232 struct lpfc_sli *psli = &phba->sli; 233 uint32_t status, timeout; 234 int i, j; 235 int rc; 236 237 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 238 if (!pmb) { 239 phba->link_state = LPFC_HBA_ERROR; 240 return -ENOMEM; 241 } 242 mb = &pmb->mb; 243 244 /* Get login parameters for NID. */ 245 lpfc_read_sparam(phba, pmb, 0); 246 pmb->vport = vport; 247 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 248 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 249 "0448 Adapter failed init, mbxCmd x%x " 250 "READ_SPARM mbxStatus x%x\n", 251 mb->mbxCommand, mb->mbxStatus); 252 phba->link_state = LPFC_HBA_ERROR; 253 mp = (struct lpfc_dmabuf *) pmb->context1; 254 mempool_free( pmb, phba->mbox_mem_pool); 255 lpfc_mbuf_free(phba, mp->virt, mp->phys); 256 kfree(mp); 257 return -EIO; 258 } 259 260 mp = (struct lpfc_dmabuf *) pmb->context1; 261 262 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 263 lpfc_mbuf_free(phba, mp->virt, mp->phys); 264 kfree(mp); 265 pmb->context1 = NULL; 266 267 if (phba->cfg_soft_wwnn) 268 u64_to_wwn(phba->cfg_soft_wwnn, 269 vport->fc_sparam.nodeName.u.wwn); 270 if (phba->cfg_soft_wwpn) 271 u64_to_wwn(phba->cfg_soft_wwpn, 272 vport->fc_sparam.portName.u.wwn); 273 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 274 sizeof (struct lpfc_name)); 275 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 276 sizeof (struct lpfc_name)); 277 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 278 /* This should be consolidated into parse_vpd ? - mr */ 279 if (phba->SerialNumber[0] == 0) { 280 uint8_t *outptr; 281 282 outptr = &vport->fc_nodename.u.s.IEEE[0]; 283 for (i = 0; i < 12; i++) { 284 status = *outptr++; 285 j = ((status & 0xf0) >> 4); 286 if (j <= 9) 287 phba->SerialNumber[i] = 288 (char)((uint8_t) 0x30 + (uint8_t) j); 289 else 290 phba->SerialNumber[i] = 291 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 292 i++; 293 j = (status & 0xf); 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 } 301 } 302 303 lpfc_read_config(phba, pmb); 304 pmb->vport = vport; 305 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 306 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 307 "0453 Adapter failed to init, mbxCmd x%x " 308 "READ_CONFIG, mbxStatus x%x\n", 309 mb->mbxCommand, mb->mbxStatus); 310 phba->link_state = LPFC_HBA_ERROR; 311 mempool_free( pmb, phba->mbox_mem_pool); 312 return -EIO; 313 } 314 315 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 316 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 317 phba->cfg_hba_queue_depth = 318 mb->un.varRdConfig.max_xri + 1; 319 320 phba->lmt = mb->un.varRdConfig.lmt; 321 322 /* Get the default values for Model Name and Description */ 323 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 324 325 if ((phba->cfg_link_speed > LINK_SPEED_10G) 326 || ((phba->cfg_link_speed == LINK_SPEED_1G) 327 && !(phba->lmt & LMT_1Gb)) 328 || ((phba->cfg_link_speed == LINK_SPEED_2G) 329 && !(phba->lmt & LMT_2Gb)) 330 || ((phba->cfg_link_speed == LINK_SPEED_4G) 331 && !(phba->lmt & LMT_4Gb)) 332 || ((phba->cfg_link_speed == LINK_SPEED_8G) 333 && !(phba->lmt & LMT_8Gb)) 334 || ((phba->cfg_link_speed == LINK_SPEED_10G) 335 && !(phba->lmt & LMT_10Gb))) { 336 /* Reset link speed to auto */ 337 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT, 338 "1302 Invalid speed for this board: " 339 "Reset link speed to auto: x%x\n", 340 phba->cfg_link_speed); 341 phba->cfg_link_speed = LINK_SPEED_AUTO; 342 } 343 344 phba->link_state = LPFC_LINK_DOWN; 345 346 /* Only process IOCBs on ring 0 till hba_state is READY */ 347 if (psli->ring[psli->extra_ring].cmdringaddr) 348 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 349 if (psli->ring[psli->fcp_ring].cmdringaddr) 350 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 351 if (psli->ring[psli->next_ring].cmdringaddr) 352 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 353 354 /* Post receive buffers for desired rings */ 355 if (phba->sli_rev != 3) 356 lpfc_post_rcv_buf(phba); 357 358 /* Enable appropriate host interrupts */ 359 spin_lock_irq(&phba->hbalock); 360 status = readl(phba->HCregaddr); 361 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 362 if (psli->num_rings > 0) 363 status |= HC_R0INT_ENA; 364 if (psli->num_rings > 1) 365 status |= HC_R1INT_ENA; 366 if (psli->num_rings > 2) 367 status |= HC_R2INT_ENA; 368 if (psli->num_rings > 3) 369 status |= HC_R3INT_ENA; 370 371 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 372 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 373 status &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 374 375 writel(status, phba->HCregaddr); 376 readl(phba->HCregaddr); /* flush */ 377 spin_unlock_irq(&phba->hbalock); 378 379 /* 380 * Setup the ring 0 (els) timeout handler 381 */ 382 timeout = phba->fc_ratov << 1; 383 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 384 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 385 phba->hb_outstanding = 0; 386 phba->last_completion_time = jiffies; 387 388 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed); 389 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 390 pmb->vport = vport; 391 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 392 lpfc_set_loopback_flag(phba); 393 if (rc != MBX_SUCCESS) { 394 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 395 "0454 Adapter failed to init, mbxCmd x%x " 396 "INIT_LINK, mbxStatus x%x\n", 397 mb->mbxCommand, mb->mbxStatus); 398 399 /* Clear all interrupt enable conditions */ 400 writel(0, phba->HCregaddr); 401 readl(phba->HCregaddr); /* flush */ 402 /* Clear all pending interrupts */ 403 writel(0xffffffff, phba->HAregaddr); 404 readl(phba->HAregaddr); /* flush */ 405 406 phba->link_state = LPFC_HBA_ERROR; 407 if (rc != MBX_BUSY) 408 mempool_free(pmb, phba->mbox_mem_pool); 409 return -EIO; 410 } 411 /* MBOX buffer will be freed in mbox compl */ 412 413 return (0); 414 } 415 416 /************************************************************************/ 417 /* */ 418 /* lpfc_hba_down_prep */ 419 /* This routine will do LPFC uninitialization before the */ 420 /* HBA is reset when bringing down the SLI Layer. This will be */ 421 /* initialized as a SLI layer callback routine. */ 422 /* This routine returns 0 on success. Any other return value */ 423 /* indicates an error. */ 424 /* */ 425 /************************************************************************/ 426 int 427 lpfc_hba_down_prep(struct lpfc_hba *phba) 428 { 429 /* Disable interrupts */ 430 writel(0, phba->HCregaddr); 431 readl(phba->HCregaddr); /* flush */ 432 433 lpfc_cleanup_discovery_resources(phba->pport); 434 return 0; 435 } 436 437 /************************************************************************/ 438 /* */ 439 /* lpfc_hba_down_post */ 440 /* This routine will do uninitialization after the HBA is reset */ 441 /* when bringing down the SLI Layer. */ 442 /* This routine returns 0 on success. Any other return value */ 443 /* indicates an error. */ 444 /* */ 445 /************************************************************************/ 446 int 447 lpfc_hba_down_post(struct lpfc_hba *phba) 448 { 449 struct lpfc_sli *psli = &phba->sli; 450 struct lpfc_sli_ring *pring; 451 struct lpfc_dmabuf *mp, *next_mp; 452 int i; 453 454 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 455 lpfc_sli_hbqbuf_free_all(phba); 456 else { 457 /* Cleanup preposted buffers on the ELS ring */ 458 pring = &psli->ring[LPFC_ELS_RING]; 459 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 460 list_del(&mp->list); 461 pring->postbufq_cnt--; 462 lpfc_mbuf_free(phba, mp->virt, mp->phys); 463 kfree(mp); 464 } 465 } 466 467 for (i = 0; i < psli->num_rings; i++) { 468 pring = &psli->ring[i]; 469 lpfc_sli_abort_iocb_ring(phba, pring); 470 } 471 472 return 0; 473 } 474 475 /* HBA heart beat timeout handler */ 476 void 477 lpfc_hb_timeout(unsigned long ptr) 478 { 479 struct lpfc_hba *phba; 480 unsigned long iflag; 481 482 phba = (struct lpfc_hba *)ptr; 483 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 484 if (!(phba->pport->work_port_events & WORKER_HB_TMO)) 485 phba->pport->work_port_events |= WORKER_HB_TMO; 486 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 487 488 if (phba->work_wait) 489 wake_up(phba->work_wait); 490 return; 491 } 492 493 static void 494 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 495 { 496 unsigned long drvr_flag; 497 498 spin_lock_irqsave(&phba->hbalock, drvr_flag); 499 phba->hb_outstanding = 0; 500 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 501 502 mempool_free(pmboxq, phba->mbox_mem_pool); 503 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 504 !(phba->link_state == LPFC_HBA_ERROR) && 505 !(phba->pport->load_flag & FC_UNLOADING)) 506 mod_timer(&phba->hb_tmofunc, 507 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 508 return; 509 } 510 511 void 512 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 513 { 514 LPFC_MBOXQ_t *pmboxq; 515 int retval; 516 struct lpfc_sli *psli = &phba->sli; 517 518 if ((phba->link_state == LPFC_HBA_ERROR) || 519 (phba->pport->load_flag & FC_UNLOADING) || 520 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 521 return; 522 523 spin_lock_irq(&phba->pport->work_port_lock); 524 /* If the timer is already canceled do nothing */ 525 if (!(phba->pport->work_port_events & WORKER_HB_TMO)) { 526 spin_unlock_irq(&phba->pport->work_port_lock); 527 return; 528 } 529 530 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 531 jiffies)) { 532 spin_unlock_irq(&phba->pport->work_port_lock); 533 if (!phba->hb_outstanding) 534 mod_timer(&phba->hb_tmofunc, 535 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 536 else 537 mod_timer(&phba->hb_tmofunc, 538 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 539 return; 540 } 541 spin_unlock_irq(&phba->pport->work_port_lock); 542 543 /* If there is no heart beat outstanding, issue a heartbeat command */ 544 if (!phba->hb_outstanding) { 545 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 546 if (!pmboxq) { 547 mod_timer(&phba->hb_tmofunc, 548 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 549 return; 550 } 551 552 lpfc_heart_beat(phba, pmboxq); 553 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 554 pmboxq->vport = phba->pport; 555 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); 556 557 if (retval != MBX_BUSY && retval != MBX_SUCCESS) { 558 mempool_free(pmboxq, phba->mbox_mem_pool); 559 mod_timer(&phba->hb_tmofunc, 560 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 561 return; 562 } 563 mod_timer(&phba->hb_tmofunc, 564 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 565 phba->hb_outstanding = 1; 566 return; 567 } else { 568 /* 569 * If heart beat timeout called with hb_outstanding set we 570 * need to take the HBA offline. 571 */ 572 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 573 "0459 Adapter heartbeat failure, taking " 574 "this port offline.\n"); 575 576 spin_lock_irq(&phba->hbalock); 577 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 578 spin_unlock_irq(&phba->hbalock); 579 580 lpfc_offline_prep(phba); 581 lpfc_offline(phba); 582 lpfc_unblock_mgmt_io(phba); 583 phba->link_state = LPFC_HBA_ERROR; 584 lpfc_hba_down_post(phba); 585 } 586 } 587 588 /************************************************************************/ 589 /* */ 590 /* lpfc_handle_eratt */ 591 /* This routine will handle processing a Host Attention */ 592 /* Error Status event. This will be initialized */ 593 /* as a SLI layer callback routine. */ 594 /* */ 595 /************************************************************************/ 596 void 597 lpfc_handle_eratt(struct lpfc_hba *phba) 598 { 599 struct lpfc_vport *vport = phba->pport; 600 struct lpfc_sli *psli = &phba->sli; 601 struct lpfc_sli_ring *pring; 602 struct lpfc_vport **vports; 603 uint32_t event_data; 604 struct Scsi_Host *shost; 605 int i; 606 607 /* If the pci channel is offline, ignore possible errors, 608 * since we cannot communicate with the pci card anyway. */ 609 if (pci_channel_offline(phba->pcidev)) 610 return; 611 612 if (phba->work_hs & HS_FFER6 || 613 phba->work_hs & HS_FFER5) { 614 /* Re-establishing Link */ 615 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 616 "1301 Re-establishing Link " 617 "Data: x%x x%x x%x\n", 618 phba->work_hs, 619 phba->work_status[0], phba->work_status[1]); 620 vports = lpfc_create_vport_work_array(phba); 621 if (vports != NULL) 622 for(i = 0; 623 i < LPFC_MAX_VPORTS && vports[i] != NULL; 624 i++){ 625 shost = lpfc_shost_from_vport(vports[i]); 626 spin_lock_irq(shost->host_lock); 627 vports[i]->fc_flag |= FC_ESTABLISH_LINK; 628 spin_unlock_irq(shost->host_lock); 629 } 630 lpfc_destroy_vport_work_array(vports); 631 spin_lock_irq(&phba->hbalock); 632 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 633 spin_unlock_irq(&phba->hbalock); 634 635 /* 636 * Firmware stops when it triggled erratt with HS_FFER6. 637 * That could cause the I/Os dropped by the firmware. 638 * Error iocb (I/O) on txcmplq and let the SCSI layer 639 * retry it after re-establishing link. 640 */ 641 pring = &psli->ring[psli->fcp_ring]; 642 lpfc_sli_abort_iocb_ring(phba, pring); 643 644 645 /* 646 * There was a firmware error. Take the hba offline and then 647 * attempt to restart it. 648 */ 649 lpfc_offline_prep(phba); 650 lpfc_offline(phba); 651 lpfc_sli_brdrestart(phba); 652 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 653 mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60); 654 lpfc_unblock_mgmt_io(phba); 655 return; 656 } 657 lpfc_unblock_mgmt_io(phba); 658 } else { 659 /* The if clause above forces this code path when the status 660 * failure is a value other than FFER6. Do not call the offline 661 * twice. This is the adapter hardware error path. 662 */ 663 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 664 "0457 Adapter Hardware Error " 665 "Data: x%x x%x x%x\n", 666 phba->work_hs, 667 phba->work_status[0], phba->work_status[1]); 668 669 event_data = FC_REG_DUMP_EVENT; 670 shost = lpfc_shost_from_vport(vport); 671 fc_host_post_vendor_event(shost, fc_get_event_number(), 672 sizeof(event_data), (char *) &event_data, 673 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 674 675 spin_lock_irq(&phba->hbalock); 676 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 677 spin_unlock_irq(&phba->hbalock); 678 lpfc_offline_prep(phba); 679 lpfc_offline(phba); 680 lpfc_unblock_mgmt_io(phba); 681 phba->link_state = LPFC_HBA_ERROR; 682 lpfc_hba_down_post(phba); 683 } 684 } 685 686 /************************************************************************/ 687 /* */ 688 /* lpfc_handle_latt */ 689 /* This routine will handle processing a Host Attention */ 690 /* Link Status event. This will be initialized */ 691 /* as a SLI layer callback routine. */ 692 /* */ 693 /************************************************************************/ 694 void 695 lpfc_handle_latt(struct lpfc_hba *phba) 696 { 697 struct lpfc_vport *vport = phba->pport; 698 struct lpfc_sli *psli = &phba->sli; 699 LPFC_MBOXQ_t *pmb; 700 volatile uint32_t control; 701 struct lpfc_dmabuf *mp; 702 int rc = -ENOMEM; 703 704 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 705 if (!pmb) 706 goto lpfc_handle_latt_err_exit; 707 708 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 709 if (!mp) 710 goto lpfc_handle_latt_free_pmb; 711 712 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 713 if (!mp->virt) 714 goto lpfc_handle_latt_free_mp; 715 716 rc = -EIO; 717 718 /* Cleanup any outstanding ELS commands */ 719 lpfc_els_flush_all_cmd(phba); 720 721 psli->slistat.link_event++; 722 lpfc_read_la(phba, pmb, mp); 723 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 724 pmb->vport = vport; 725 rc = lpfc_sli_issue_mbox (phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB)); 726 if (rc == MBX_NOT_FINISHED) 727 goto lpfc_handle_latt_free_mbuf; 728 729 /* Clear Link Attention in HA REG */ 730 spin_lock_irq(&phba->hbalock); 731 writel(HA_LATT, phba->HAregaddr); 732 readl(phba->HAregaddr); /* flush */ 733 spin_unlock_irq(&phba->hbalock); 734 735 return; 736 737 lpfc_handle_latt_free_mbuf: 738 lpfc_mbuf_free(phba, mp->virt, mp->phys); 739 lpfc_handle_latt_free_mp: 740 kfree(mp); 741 lpfc_handle_latt_free_pmb: 742 mempool_free(pmb, phba->mbox_mem_pool); 743 lpfc_handle_latt_err_exit: 744 /* Enable Link attention interrupts */ 745 spin_lock_irq(&phba->hbalock); 746 psli->sli_flag |= LPFC_PROCESS_LA; 747 control = readl(phba->HCregaddr); 748 control |= HC_LAINT_ENA; 749 writel(control, phba->HCregaddr); 750 readl(phba->HCregaddr); /* flush */ 751 752 /* Clear Link Attention in HA REG */ 753 writel(HA_LATT, phba->HAregaddr); 754 readl(phba->HAregaddr); /* flush */ 755 spin_unlock_irq(&phba->hbalock); 756 lpfc_linkdown(phba); 757 phba->link_state = LPFC_HBA_ERROR; 758 759 /* The other case is an error from issue_mbox */ 760 if (rc == -ENOMEM) 761 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 762 "0300 READ_LA: no buffers\n"); 763 764 return; 765 } 766 767 /************************************************************************/ 768 /* */ 769 /* lpfc_parse_vpd */ 770 /* This routine will parse the VPD data */ 771 /* */ 772 /************************************************************************/ 773 static int 774 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 775 { 776 uint8_t lenlo, lenhi; 777 int Length; 778 int i, j; 779 int finished = 0; 780 int index = 0; 781 782 if (!vpd) 783 return 0; 784 785 /* Vital Product */ 786 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 787 "0455 Vital Product Data: x%x x%x x%x x%x\n", 788 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 789 (uint32_t) vpd[3]); 790 while (!finished && (index < (len - 4))) { 791 switch (vpd[index]) { 792 case 0x82: 793 case 0x91: 794 index += 1; 795 lenlo = vpd[index]; 796 index += 1; 797 lenhi = vpd[index]; 798 index += 1; 799 i = ((((unsigned short)lenhi) << 8) + lenlo); 800 index += i; 801 break; 802 case 0x90: 803 index += 1; 804 lenlo = vpd[index]; 805 index += 1; 806 lenhi = vpd[index]; 807 index += 1; 808 Length = ((((unsigned short)lenhi) << 8) + lenlo); 809 if (Length > len - index) 810 Length = len - index; 811 while (Length > 0) { 812 /* Look for Serial Number */ 813 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 814 index += 2; 815 i = vpd[index]; 816 index += 1; 817 j = 0; 818 Length -= (3+i); 819 while(i--) { 820 phba->SerialNumber[j++] = vpd[index++]; 821 if (j == 31) 822 break; 823 } 824 phba->SerialNumber[j] = 0; 825 continue; 826 } 827 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 828 phba->vpd_flag |= VPD_MODEL_DESC; 829 index += 2; 830 i = vpd[index]; 831 index += 1; 832 j = 0; 833 Length -= (3+i); 834 while(i--) { 835 phba->ModelDesc[j++] = vpd[index++]; 836 if (j == 255) 837 break; 838 } 839 phba->ModelDesc[j] = 0; 840 continue; 841 } 842 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 843 phba->vpd_flag |= VPD_MODEL_NAME; 844 index += 2; 845 i = vpd[index]; 846 index += 1; 847 j = 0; 848 Length -= (3+i); 849 while(i--) { 850 phba->ModelName[j++] = vpd[index++]; 851 if (j == 79) 852 break; 853 } 854 phba->ModelName[j] = 0; 855 continue; 856 } 857 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 858 phba->vpd_flag |= VPD_PROGRAM_TYPE; 859 index += 2; 860 i = vpd[index]; 861 index += 1; 862 j = 0; 863 Length -= (3+i); 864 while(i--) { 865 phba->ProgramType[j++] = vpd[index++]; 866 if (j == 255) 867 break; 868 } 869 phba->ProgramType[j] = 0; 870 continue; 871 } 872 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 873 phba->vpd_flag |= VPD_PORT; 874 index += 2; 875 i = vpd[index]; 876 index += 1; 877 j = 0; 878 Length -= (3+i); 879 while(i--) { 880 phba->Port[j++] = vpd[index++]; 881 if (j == 19) 882 break; 883 } 884 phba->Port[j] = 0; 885 continue; 886 } 887 else { 888 index += 2; 889 i = vpd[index]; 890 index += 1; 891 index += i; 892 Length -= (3 + i); 893 } 894 } 895 finished = 0; 896 break; 897 case 0x78: 898 finished = 1; 899 break; 900 default: 901 index ++; 902 break; 903 } 904 } 905 906 return(1); 907 } 908 909 static void 910 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 911 { 912 lpfc_vpd_t *vp; 913 uint16_t dev_id = phba->pcidev->device; 914 int max_speed; 915 struct { 916 char * name; 917 int max_speed; 918 char * bus; 919 } m = {"<Unknown>", 0, ""}; 920 921 if (mdp && mdp[0] != '\0' 922 && descp && descp[0] != '\0') 923 return; 924 925 if (phba->lmt & LMT_10Gb) 926 max_speed = 10; 927 else if (phba->lmt & LMT_8Gb) 928 max_speed = 8; 929 else if (phba->lmt & LMT_4Gb) 930 max_speed = 4; 931 else if (phba->lmt & LMT_2Gb) 932 max_speed = 2; 933 else 934 max_speed = 1; 935 936 vp = &phba->vpd; 937 938 switch (dev_id) { 939 case PCI_DEVICE_ID_FIREFLY: 940 m = (typeof(m)){"LP6000", max_speed, "PCI"}; 941 break; 942 case PCI_DEVICE_ID_SUPERFLY: 943 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 944 m = (typeof(m)){"LP7000", max_speed, "PCI"}; 945 else 946 m = (typeof(m)){"LP7000E", max_speed, "PCI"}; 947 break; 948 case PCI_DEVICE_ID_DRAGONFLY: 949 m = (typeof(m)){"LP8000", max_speed, "PCI"}; 950 break; 951 case PCI_DEVICE_ID_CENTAUR: 952 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 953 m = (typeof(m)){"LP9002", max_speed, "PCI"}; 954 else 955 m = (typeof(m)){"LP9000", max_speed, "PCI"}; 956 break; 957 case PCI_DEVICE_ID_RFLY: 958 m = (typeof(m)){"LP952", max_speed, "PCI"}; 959 break; 960 case PCI_DEVICE_ID_PEGASUS: 961 m = (typeof(m)){"LP9802", max_speed, "PCI-X"}; 962 break; 963 case PCI_DEVICE_ID_THOR: 964 m = (typeof(m)){"LP10000", max_speed, "PCI-X"}; 965 break; 966 case PCI_DEVICE_ID_VIPER: 967 m = (typeof(m)){"LPX1000", max_speed, "PCI-X"}; 968 break; 969 case PCI_DEVICE_ID_PFLY: 970 m = (typeof(m)){"LP982", max_speed, "PCI-X"}; 971 break; 972 case PCI_DEVICE_ID_TFLY: 973 m = (typeof(m)){"LP1050", max_speed, "PCI-X"}; 974 break; 975 case PCI_DEVICE_ID_HELIOS: 976 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"}; 977 break; 978 case PCI_DEVICE_ID_HELIOS_SCSP: 979 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"}; 980 break; 981 case PCI_DEVICE_ID_HELIOS_DCSP: 982 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"}; 983 break; 984 case PCI_DEVICE_ID_NEPTUNE: 985 m = (typeof(m)){"LPe1000", max_speed, "PCIe"}; 986 break; 987 case PCI_DEVICE_ID_NEPTUNE_SCSP: 988 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"}; 989 break; 990 case PCI_DEVICE_ID_NEPTUNE_DCSP: 991 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"}; 992 break; 993 case PCI_DEVICE_ID_BMID: 994 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"}; 995 break; 996 case PCI_DEVICE_ID_BSMB: 997 m = (typeof(m)){"LP111", max_speed, "PCI-X2"}; 998 break; 999 case PCI_DEVICE_ID_ZEPHYR: 1000 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1001 break; 1002 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1003 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1004 break; 1005 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1006 m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"}; 1007 break; 1008 case PCI_DEVICE_ID_ZMID: 1009 m = (typeof(m)){"LPe1150", max_speed, "PCIe"}; 1010 break; 1011 case PCI_DEVICE_ID_ZSMB: 1012 m = (typeof(m)){"LPe111", max_speed, "PCIe"}; 1013 break; 1014 case PCI_DEVICE_ID_LP101: 1015 m = (typeof(m)){"LP101", max_speed, "PCI-X"}; 1016 break; 1017 case PCI_DEVICE_ID_LP10000S: 1018 m = (typeof(m)){"LP10000-S", max_speed, "PCI"}; 1019 break; 1020 case PCI_DEVICE_ID_LP11000S: 1021 m = (typeof(m)){"LP11000-S", max_speed, 1022 "PCI-X2"}; 1023 break; 1024 case PCI_DEVICE_ID_LPE11000S: 1025 m = (typeof(m)){"LPe11000-S", max_speed, 1026 "PCIe"}; 1027 break; 1028 case PCI_DEVICE_ID_SAT: 1029 m = (typeof(m)){"LPe12000", max_speed, "PCIe"}; 1030 break; 1031 case PCI_DEVICE_ID_SAT_MID: 1032 m = (typeof(m)){"LPe1250", max_speed, "PCIe"}; 1033 break; 1034 case PCI_DEVICE_ID_SAT_SMB: 1035 m = (typeof(m)){"LPe121", max_speed, "PCIe"}; 1036 break; 1037 case PCI_DEVICE_ID_SAT_DCSP: 1038 m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"}; 1039 break; 1040 case PCI_DEVICE_ID_SAT_SCSP: 1041 m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"}; 1042 break; 1043 case PCI_DEVICE_ID_SAT_S: 1044 m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"}; 1045 break; 1046 default: 1047 m = (typeof(m)){ NULL }; 1048 break; 1049 } 1050 1051 if (mdp && mdp[0] == '\0') 1052 snprintf(mdp, 79,"%s", m.name); 1053 if (descp && descp[0] == '\0') 1054 snprintf(descp, 255, 1055 "Emulex %s %dGb %s Fibre Channel Adapter", 1056 m.name, m.max_speed, m.bus); 1057 } 1058 1059 /**************************************************/ 1060 /* lpfc_post_buffer */ 1061 /* */ 1062 /* This routine will post count buffers to the */ 1063 /* ring with the QUE_RING_BUF_CN command. This */ 1064 /* allows 3 buffers / command to be posted. */ 1065 /* Returns the number of buffers NOT posted. */ 1066 /**************************************************/ 1067 int 1068 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt, 1069 int type) 1070 { 1071 IOCB_t *icmd; 1072 struct lpfc_iocbq *iocb; 1073 struct lpfc_dmabuf *mp1, *mp2; 1074 1075 cnt += pring->missbufcnt; 1076 1077 /* While there are buffers to post */ 1078 while (cnt > 0) { 1079 /* Allocate buffer for command iocb */ 1080 iocb = lpfc_sli_get_iocbq(phba); 1081 if (iocb == NULL) { 1082 pring->missbufcnt = cnt; 1083 return cnt; 1084 } 1085 icmd = &iocb->iocb; 1086 1087 /* 2 buffers can be posted per command */ 1088 /* Allocate buffer to post */ 1089 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1090 if (mp1) 1091 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1092 &mp1->phys); 1093 if (mp1 == 0 || mp1->virt == 0) { 1094 kfree(mp1); 1095 lpfc_sli_release_iocbq(phba, iocb); 1096 pring->missbufcnt = cnt; 1097 return cnt; 1098 } 1099 1100 INIT_LIST_HEAD(&mp1->list); 1101 /* Allocate buffer to post */ 1102 if (cnt > 1) { 1103 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1104 if (mp2) 1105 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1106 &mp2->phys); 1107 if (mp2 == 0 || mp2->virt == 0) { 1108 kfree(mp2); 1109 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1110 kfree(mp1); 1111 lpfc_sli_release_iocbq(phba, iocb); 1112 pring->missbufcnt = cnt; 1113 return cnt; 1114 } 1115 1116 INIT_LIST_HEAD(&mp2->list); 1117 } else { 1118 mp2 = NULL; 1119 } 1120 1121 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1122 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1123 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1124 icmd->ulpBdeCount = 1; 1125 cnt--; 1126 if (mp2) { 1127 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1128 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1129 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1130 cnt--; 1131 icmd->ulpBdeCount = 2; 1132 } 1133 1134 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1135 icmd->ulpLe = 1; 1136 1137 if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) { 1138 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1139 kfree(mp1); 1140 cnt++; 1141 if (mp2) { 1142 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1143 kfree(mp2); 1144 cnt++; 1145 } 1146 lpfc_sli_release_iocbq(phba, iocb); 1147 pring->missbufcnt = cnt; 1148 return cnt; 1149 } 1150 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1151 if (mp2) 1152 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1153 } 1154 pring->missbufcnt = 0; 1155 return 0; 1156 } 1157 1158 /************************************************************************/ 1159 /* */ 1160 /* lpfc_post_rcv_buf */ 1161 /* This routine post initial rcv buffers to the configured rings */ 1162 /* */ 1163 /************************************************************************/ 1164 static int 1165 lpfc_post_rcv_buf(struct lpfc_hba *phba) 1166 { 1167 struct lpfc_sli *psli = &phba->sli; 1168 1169 /* Ring 0, ELS / CT buffers */ 1170 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0, 1); 1171 /* Ring 2 - FCP no buffers needed */ 1172 1173 return 0; 1174 } 1175 1176 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 1177 1178 /************************************************************************/ 1179 /* */ 1180 /* lpfc_sha_init */ 1181 /* */ 1182 /************************************************************************/ 1183 static void 1184 lpfc_sha_init(uint32_t * HashResultPointer) 1185 { 1186 HashResultPointer[0] = 0x67452301; 1187 HashResultPointer[1] = 0xEFCDAB89; 1188 HashResultPointer[2] = 0x98BADCFE; 1189 HashResultPointer[3] = 0x10325476; 1190 HashResultPointer[4] = 0xC3D2E1F0; 1191 } 1192 1193 /************************************************************************/ 1194 /* */ 1195 /* lpfc_sha_iterate */ 1196 /* */ 1197 /************************************************************************/ 1198 static void 1199 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 1200 { 1201 int t; 1202 uint32_t TEMP; 1203 uint32_t A, B, C, D, E; 1204 t = 16; 1205 do { 1206 HashWorkingPointer[t] = 1207 S(1, 1208 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 1209 8] ^ 1210 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 1211 } while (++t <= 79); 1212 t = 0; 1213 A = HashResultPointer[0]; 1214 B = HashResultPointer[1]; 1215 C = HashResultPointer[2]; 1216 D = HashResultPointer[3]; 1217 E = HashResultPointer[4]; 1218 1219 do { 1220 if (t < 20) { 1221 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 1222 } else if (t < 40) { 1223 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 1224 } else if (t < 60) { 1225 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 1226 } else { 1227 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 1228 } 1229 TEMP += S(5, A) + E + HashWorkingPointer[t]; 1230 E = D; 1231 D = C; 1232 C = S(30, B); 1233 B = A; 1234 A = TEMP; 1235 } while (++t <= 79); 1236 1237 HashResultPointer[0] += A; 1238 HashResultPointer[1] += B; 1239 HashResultPointer[2] += C; 1240 HashResultPointer[3] += D; 1241 HashResultPointer[4] += E; 1242 1243 } 1244 1245 /************************************************************************/ 1246 /* */ 1247 /* lpfc_challenge_key */ 1248 /* */ 1249 /************************************************************************/ 1250 static void 1251 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 1252 { 1253 *HashWorking = (*RandomChallenge ^ *HashWorking); 1254 } 1255 1256 /************************************************************************/ 1257 /* */ 1258 /* lpfc_hba_init */ 1259 /* */ 1260 /************************************************************************/ 1261 void 1262 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 1263 { 1264 int t; 1265 uint32_t *HashWorking; 1266 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 1267 1268 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 1269 if (!HashWorking) 1270 return; 1271 1272 HashWorking[0] = HashWorking[78] = *pwwnn++; 1273 HashWorking[1] = HashWorking[79] = *pwwnn; 1274 1275 for (t = 0; t < 7; t++) 1276 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 1277 1278 lpfc_sha_init(hbainit); 1279 lpfc_sha_iterate(hbainit, HashWorking); 1280 kfree(HashWorking); 1281 } 1282 1283 static void 1284 lpfc_cleanup(struct lpfc_vport *vport) 1285 { 1286 struct lpfc_nodelist *ndlp, *next_ndlp; 1287 1288 /* clean up phba - lpfc specific */ 1289 lpfc_can_disctmo(vport); 1290 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) 1291 lpfc_nlp_put(ndlp); 1292 return; 1293 } 1294 1295 static void 1296 lpfc_establish_link_tmo(unsigned long ptr) 1297 { 1298 struct lpfc_hba *phba = (struct lpfc_hba *) ptr; 1299 struct lpfc_vport **vports; 1300 unsigned long iflag; 1301 int i; 1302 1303 /* Re-establishing Link, timer expired */ 1304 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 1305 "1300 Re-establishing Link, timer expired " 1306 "Data: x%x x%x\n", 1307 phba->pport->fc_flag, phba->pport->port_state); 1308 vports = lpfc_create_vport_work_array(phba); 1309 if (vports != NULL) 1310 for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++) { 1311 struct Scsi_Host *shost; 1312 shost = lpfc_shost_from_vport(vports[i]); 1313 spin_lock_irqsave(shost->host_lock, iflag); 1314 vports[i]->fc_flag &= ~FC_ESTABLISH_LINK; 1315 spin_unlock_irqrestore(shost->host_lock, iflag); 1316 } 1317 lpfc_destroy_vport_work_array(vports); 1318 } 1319 1320 void 1321 lpfc_stop_vport_timers(struct lpfc_vport *vport) 1322 { 1323 del_timer_sync(&vport->els_tmofunc); 1324 del_timer_sync(&vport->fc_fdmitmo); 1325 lpfc_can_disctmo(vport); 1326 return; 1327 } 1328 1329 static void 1330 lpfc_stop_phba_timers(struct lpfc_hba *phba) 1331 { 1332 del_timer_sync(&phba->fcp_poll_timer); 1333 del_timer_sync(&phba->fc_estabtmo); 1334 lpfc_stop_vport_timers(phba->pport); 1335 del_timer_sync(&phba->sli.mbox_tmo); 1336 del_timer_sync(&phba->fabric_block_timer); 1337 phba->hb_outstanding = 0; 1338 del_timer_sync(&phba->hb_tmofunc); 1339 return; 1340 } 1341 1342 int 1343 lpfc_online(struct lpfc_hba *phba) 1344 { 1345 struct lpfc_vport *vport = phba->pport; 1346 struct lpfc_vport **vports; 1347 int i; 1348 1349 if (!phba) 1350 return 0; 1351 1352 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 1353 return 0; 1354 1355 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1356 "0458 Bring Adapter online\n"); 1357 1358 lpfc_block_mgmt_io(phba); 1359 1360 if (!lpfc_sli_queue_setup(phba)) { 1361 lpfc_unblock_mgmt_io(phba); 1362 return 1; 1363 } 1364 1365 if (lpfc_sli_hba_setup(phba)) { /* Initialize the HBA */ 1366 lpfc_unblock_mgmt_io(phba); 1367 return 1; 1368 } 1369 1370 vports = lpfc_create_vport_work_array(phba); 1371 if (vports != NULL) 1372 for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++) { 1373 struct Scsi_Host *shost; 1374 shost = lpfc_shost_from_vport(vports[i]); 1375 spin_lock_irq(shost->host_lock); 1376 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 1377 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 1378 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 1379 spin_unlock_irq(shost->host_lock); 1380 } 1381 lpfc_destroy_vport_work_array(vports); 1382 1383 lpfc_unblock_mgmt_io(phba); 1384 return 0; 1385 } 1386 1387 void 1388 lpfc_block_mgmt_io(struct lpfc_hba * phba) 1389 { 1390 unsigned long iflag; 1391 1392 spin_lock_irqsave(&phba->hbalock, iflag); 1393 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 1394 spin_unlock_irqrestore(&phba->hbalock, iflag); 1395 } 1396 1397 void 1398 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 1399 { 1400 unsigned long iflag; 1401 1402 spin_lock_irqsave(&phba->hbalock, iflag); 1403 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 1404 spin_unlock_irqrestore(&phba->hbalock, iflag); 1405 } 1406 1407 void 1408 lpfc_offline_prep(struct lpfc_hba * phba) 1409 { 1410 struct lpfc_vport *vport = phba->pport; 1411 struct lpfc_nodelist *ndlp, *next_ndlp; 1412 1413 if (vport->fc_flag & FC_OFFLINE_MODE) 1414 return; 1415 1416 lpfc_block_mgmt_io(phba); 1417 1418 lpfc_linkdown(phba); 1419 1420 /* Issue an unreg_login to all nodes */ 1421 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) 1422 if (ndlp->nlp_state != NLP_STE_UNUSED_NODE) 1423 lpfc_unreg_rpi(vport, ndlp); 1424 1425 lpfc_sli_flush_mbox_queue(phba); 1426 } 1427 1428 void 1429 lpfc_offline(struct lpfc_hba *phba) 1430 { 1431 struct Scsi_Host *shost; 1432 struct lpfc_vport **vports; 1433 int i; 1434 1435 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 1436 return; 1437 1438 /* stop all timers associated with this hba */ 1439 lpfc_stop_phba_timers(phba); 1440 vports = lpfc_create_vport_work_array(phba); 1441 if (vports != NULL) 1442 for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++) 1443 lpfc_stop_vport_timers(vports[i]); 1444 lpfc_destroy_vport_work_array(vports); 1445 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1446 "0460 Bring Adapter offline\n"); 1447 /* Bring down the SLI Layer and cleanup. The HBA is offline 1448 now. */ 1449 lpfc_sli_hba_down(phba); 1450 spin_lock_irq(&phba->hbalock); 1451 phba->work_ha = 0; 1452 spin_unlock_irq(&phba->hbalock); 1453 vports = lpfc_create_vport_work_array(phba); 1454 if (vports != NULL) 1455 for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++) { 1456 shost = lpfc_shost_from_vport(vports[i]); 1457 lpfc_cleanup(vports[i]); 1458 spin_lock_irq(shost->host_lock); 1459 vports[i]->work_port_events = 0; 1460 vports[i]->fc_flag |= FC_OFFLINE_MODE; 1461 spin_unlock_irq(shost->host_lock); 1462 } 1463 lpfc_destroy_vport_work_array(vports); 1464 } 1465 1466 /****************************************************************************** 1467 * Function name: lpfc_scsi_free 1468 * 1469 * Description: Called from lpfc_pci_remove_one free internal driver resources 1470 * 1471 ******************************************************************************/ 1472 static int 1473 lpfc_scsi_free(struct lpfc_hba *phba) 1474 { 1475 struct lpfc_scsi_buf *sb, *sb_next; 1476 struct lpfc_iocbq *io, *io_next; 1477 1478 spin_lock_irq(&phba->hbalock); 1479 /* Release all the lpfc_scsi_bufs maintained by this host. */ 1480 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 1481 list_del(&sb->list); 1482 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 1483 sb->dma_handle); 1484 kfree(sb); 1485 phba->total_scsi_bufs--; 1486 } 1487 1488 /* Release all the lpfc_iocbq entries maintained by this host. */ 1489 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 1490 list_del(&io->list); 1491 kfree(io); 1492 phba->total_iocbq_bufs--; 1493 } 1494 1495 spin_unlock_irq(&phba->hbalock); 1496 1497 return 0; 1498 } 1499 1500 struct lpfc_vport * 1501 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 1502 { 1503 struct lpfc_vport *vport; 1504 struct Scsi_Host *shost; 1505 int error = 0; 1506 1507 if (dev != &phba->pcidev->dev) 1508 shost = scsi_host_alloc(&lpfc_vport_template, 1509 sizeof(struct lpfc_vport)); 1510 else 1511 shost = scsi_host_alloc(&lpfc_template, 1512 sizeof(struct lpfc_vport)); 1513 if (!shost) 1514 goto out; 1515 1516 vport = (struct lpfc_vport *) shost->hostdata; 1517 vport->phba = phba; 1518 1519 vport->load_flag |= FC_LOADING; 1520 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 1521 1522 lpfc_get_vport_cfgparam(vport); 1523 shost->unique_id = instance; 1524 shost->max_id = LPFC_MAX_TARGET; 1525 shost->max_lun = vport->cfg_max_luns; 1526 shost->this_id = -1; 1527 shost->max_cmd_len = 16; 1528 /* 1529 * Set initial can_queue value since 0 is no longer supported and 1530 * scsi_add_host will fail. This will be adjusted later based on the 1531 * max xri value determined in hba setup. 1532 */ 1533 shost->can_queue = phba->cfg_hba_queue_depth - 10; 1534 if (dev != &phba->pcidev->dev) { 1535 shost->transportt = lpfc_vport_transport_template; 1536 vport->port_type = LPFC_NPIV_PORT; 1537 } else { 1538 shost->transportt = lpfc_transport_template; 1539 vport->port_type = LPFC_PHYSICAL_PORT; 1540 } 1541 1542 /* Initialize all internally managed lists. */ 1543 INIT_LIST_HEAD(&vport->fc_nodes); 1544 spin_lock_init(&vport->work_port_lock); 1545 1546 init_timer(&vport->fc_disctmo); 1547 vport->fc_disctmo.function = lpfc_disc_timeout; 1548 vport->fc_disctmo.data = (unsigned long)vport; 1549 1550 init_timer(&vport->fc_fdmitmo); 1551 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 1552 vport->fc_fdmitmo.data = (unsigned long)vport; 1553 1554 init_timer(&vport->els_tmofunc); 1555 vport->els_tmofunc.function = lpfc_els_timeout; 1556 vport->els_tmofunc.data = (unsigned long)vport; 1557 1558 error = scsi_add_host(shost, dev); 1559 if (error) 1560 goto out_put_shost; 1561 1562 spin_lock_irq(&phba->hbalock); 1563 list_add_tail(&vport->listentry, &phba->port_list); 1564 spin_unlock_irq(&phba->hbalock); 1565 return vport; 1566 1567 out_put_shost: 1568 scsi_host_put(shost); 1569 out: 1570 return NULL; 1571 } 1572 1573 void 1574 destroy_port(struct lpfc_vport *vport) 1575 { 1576 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1577 struct lpfc_hba *phba = vport->phba; 1578 1579 kfree(vport->vname); 1580 1581 lpfc_debugfs_terminate(vport); 1582 fc_remove_host(shost); 1583 scsi_remove_host(shost); 1584 1585 spin_lock_irq(&phba->hbalock); 1586 list_del_init(&vport->listentry); 1587 spin_unlock_irq(&phba->hbalock); 1588 1589 lpfc_cleanup(vport); 1590 return; 1591 } 1592 1593 int 1594 lpfc_get_instance(void) 1595 { 1596 int instance = 0; 1597 1598 /* Assign an unused number */ 1599 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 1600 return -1; 1601 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 1602 return -1; 1603 return instance; 1604 } 1605 1606 /* 1607 * Note: there is no scan_start function as adapter initialization 1608 * will have asynchronously kicked off the link initialization. 1609 */ 1610 1611 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 1612 { 1613 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1614 struct lpfc_hba *phba = vport->phba; 1615 int stat = 0; 1616 1617 spin_lock_irq(shost->host_lock); 1618 1619 if (vport->load_flag & FC_UNLOADING) { 1620 stat = 1; 1621 goto finished; 1622 } 1623 if (time >= 30 * HZ) { 1624 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1625 "0461 Scanning longer than 30 " 1626 "seconds. Continuing initialization\n"); 1627 stat = 1; 1628 goto finished; 1629 } 1630 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 1631 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1632 "0465 Link down longer than 15 " 1633 "seconds. Continuing initialization\n"); 1634 stat = 1; 1635 goto finished; 1636 } 1637 1638 if (vport->port_state != LPFC_VPORT_READY) 1639 goto finished; 1640 if (vport->num_disc_nodes || vport->fc_prli_sent) 1641 goto finished; 1642 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 1643 goto finished; 1644 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 1645 goto finished; 1646 1647 stat = 1; 1648 1649 finished: 1650 spin_unlock_irq(shost->host_lock); 1651 return stat; 1652 } 1653 1654 void lpfc_host_attrib_init(struct Scsi_Host *shost) 1655 { 1656 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1657 struct lpfc_hba *phba = vport->phba; 1658 /* 1659 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 1660 */ 1661 1662 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 1663 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 1664 fc_host_supported_classes(shost) = FC_COS_CLASS3; 1665 1666 memset(fc_host_supported_fc4s(shost), 0, 1667 sizeof(fc_host_supported_fc4s(shost))); 1668 fc_host_supported_fc4s(shost)[2] = 1; 1669 fc_host_supported_fc4s(shost)[7] = 1; 1670 1671 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 1672 sizeof fc_host_symbolic_name(shost)); 1673 1674 fc_host_supported_speeds(shost) = 0; 1675 if (phba->lmt & LMT_10Gb) 1676 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 1677 if (phba->lmt & LMT_4Gb) 1678 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 1679 if (phba->lmt & LMT_2Gb) 1680 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 1681 if (phba->lmt & LMT_1Gb) 1682 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 1683 1684 fc_host_maxframe_size(shost) = 1685 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 1686 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 1687 1688 /* This value is also unchanging */ 1689 memset(fc_host_active_fc4s(shost), 0, 1690 sizeof(fc_host_active_fc4s(shost))); 1691 fc_host_active_fc4s(shost)[2] = 1; 1692 fc_host_active_fc4s(shost)[7] = 1; 1693 1694 fc_host_max_npiv_vports(shost) = phba->max_vpi; 1695 spin_lock_irq(shost->host_lock); 1696 vport->load_flag &= ~FC_LOADING; 1697 spin_unlock_irq(shost->host_lock); 1698 } 1699 1700 static int __devinit 1701 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 1702 { 1703 struct lpfc_vport *vport = NULL; 1704 struct lpfc_hba *phba; 1705 struct lpfc_sli *psli; 1706 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 1707 struct Scsi_Host *shost = NULL; 1708 void *ptr; 1709 unsigned long bar0map_len, bar2map_len; 1710 int error = -ENODEV; 1711 int i, hbq_count; 1712 uint16_t iotag; 1713 1714 if (pci_enable_device(pdev)) 1715 goto out; 1716 if (pci_request_regions(pdev, LPFC_DRIVER_NAME)) 1717 goto out_disable_device; 1718 1719 phba = kzalloc(sizeof (struct lpfc_hba), GFP_KERNEL); 1720 if (!phba) 1721 goto out_release_regions; 1722 1723 spin_lock_init(&phba->hbalock); 1724 1725 phba->pcidev = pdev; 1726 1727 /* Assign an unused board number */ 1728 if ((phba->brd_no = lpfc_get_instance()) < 0) 1729 goto out_free_phba; 1730 1731 INIT_LIST_HEAD(&phba->port_list); 1732 /* 1733 * Get all the module params for configuring this host and then 1734 * establish the host. 1735 */ 1736 lpfc_get_cfgparam(phba); 1737 phba->max_vpi = LPFC_MAX_VPI; 1738 1739 /* Initialize timers used by driver */ 1740 init_timer(&phba->fc_estabtmo); 1741 phba->fc_estabtmo.function = lpfc_establish_link_tmo; 1742 phba->fc_estabtmo.data = (unsigned long)phba; 1743 1744 init_timer(&phba->hb_tmofunc); 1745 phba->hb_tmofunc.function = lpfc_hb_timeout; 1746 phba->hb_tmofunc.data = (unsigned long)phba; 1747 1748 psli = &phba->sli; 1749 init_timer(&psli->mbox_tmo); 1750 psli->mbox_tmo.function = lpfc_mbox_timeout; 1751 psli->mbox_tmo.data = (unsigned long) phba; 1752 init_timer(&phba->fcp_poll_timer); 1753 phba->fcp_poll_timer.function = lpfc_poll_timeout; 1754 phba->fcp_poll_timer.data = (unsigned long) phba; 1755 init_timer(&phba->fabric_block_timer); 1756 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 1757 phba->fabric_block_timer.data = (unsigned long) phba; 1758 1759 pci_set_master(pdev); 1760 pci_try_set_mwi(pdev); 1761 1762 if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0) 1763 if (pci_set_dma_mask(phba->pcidev, DMA_32BIT_MASK) != 0) 1764 goto out_idr_remove; 1765 1766 /* 1767 * Get the bus address of Bar0 and Bar2 and the number of bytes 1768 * required by each mapping. 1769 */ 1770 phba->pci_bar0_map = pci_resource_start(phba->pcidev, 0); 1771 bar0map_len = pci_resource_len(phba->pcidev, 0); 1772 1773 phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2); 1774 bar2map_len = pci_resource_len(phba->pcidev, 2); 1775 1776 /* Map HBA SLIM to a kernel virtual address. */ 1777 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 1778 if (!phba->slim_memmap_p) { 1779 error = -ENODEV; 1780 dev_printk(KERN_ERR, &pdev->dev, 1781 "ioremap failed for SLIM memory.\n"); 1782 goto out_idr_remove; 1783 } 1784 1785 /* Map HBA Control Registers to a kernel virtual address. */ 1786 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 1787 if (!phba->ctrl_regs_memmap_p) { 1788 error = -ENODEV; 1789 dev_printk(KERN_ERR, &pdev->dev, 1790 "ioremap failed for HBA control registers.\n"); 1791 goto out_iounmap_slim; 1792 } 1793 1794 /* Allocate memory for SLI-2 structures */ 1795 phba->slim2p = dma_alloc_coherent(&phba->pcidev->dev, SLI2_SLIM_SIZE, 1796 &phba->slim2p_mapping, GFP_KERNEL); 1797 if (!phba->slim2p) 1798 goto out_iounmap; 1799 1800 memset(phba->slim2p, 0, SLI2_SLIM_SIZE); 1801 1802 phba->hbqslimp.virt = dma_alloc_coherent(&phba->pcidev->dev, 1803 lpfc_sli_hbq_size(), 1804 &phba->hbqslimp.phys, 1805 GFP_KERNEL); 1806 if (!phba->hbqslimp.virt) 1807 goto out_free_slim; 1808 1809 hbq_count = lpfc_sli_hbq_count(); 1810 ptr = phba->hbqslimp.virt; 1811 for (i = 0; i < hbq_count; ++i) { 1812 phba->hbqs[i].hbq_virt = ptr; 1813 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 1814 ptr += (lpfc_hbq_defs[i]->entry_count * 1815 sizeof(struct lpfc_hbq_entry)); 1816 } 1817 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 1818 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 1819 1820 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 1821 1822 /* Initialize the SLI Layer to run with lpfc HBAs. */ 1823 lpfc_sli_setup(phba); 1824 lpfc_sli_queue_setup(phba); 1825 1826 error = lpfc_mem_alloc(phba); 1827 if (error) 1828 goto out_free_hbqslimp; 1829 1830 /* Initialize and populate the iocb list per host. */ 1831 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 1832 for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) { 1833 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 1834 if (iocbq_entry == NULL) { 1835 printk(KERN_ERR "%s: only allocated %d iocbs of " 1836 "expected %d count. Unloading driver.\n", 1837 __FUNCTION__, i, LPFC_IOCB_LIST_CNT); 1838 error = -ENOMEM; 1839 goto out_free_iocbq; 1840 } 1841 1842 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 1843 if (iotag == 0) { 1844 kfree (iocbq_entry); 1845 printk(KERN_ERR "%s: failed to allocate IOTAG. " 1846 "Unloading driver.\n", 1847 __FUNCTION__); 1848 error = -ENOMEM; 1849 goto out_free_iocbq; 1850 } 1851 1852 spin_lock_irq(&phba->hbalock); 1853 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 1854 phba->total_iocbq_bufs++; 1855 spin_unlock_irq(&phba->hbalock); 1856 } 1857 1858 /* Initialize HBA structure */ 1859 phba->fc_edtov = FF_DEF_EDTOV; 1860 phba->fc_ratov = FF_DEF_RATOV; 1861 phba->fc_altov = FF_DEF_ALTOV; 1862 phba->fc_arbtov = FF_DEF_ARBTOV; 1863 1864 INIT_LIST_HEAD(&phba->work_list); 1865 phba->work_ha_mask = (HA_ERATT|HA_MBATT|HA_LATT); 1866 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 1867 1868 /* Startup the kernel thread for this host adapter. */ 1869 phba->worker_thread = kthread_run(lpfc_do_work, phba, 1870 "lpfc_worker_%d", phba->brd_no); 1871 if (IS_ERR(phba->worker_thread)) { 1872 error = PTR_ERR(phba->worker_thread); 1873 goto out_free_iocbq; 1874 } 1875 1876 /* Initialize the list of scsi buffers used by driver for scsi IO. */ 1877 spin_lock_init(&phba->scsi_buf_list_lock); 1878 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 1879 1880 /* Initialize list of fabric iocbs */ 1881 INIT_LIST_HEAD(&phba->fabric_iocb_list); 1882 1883 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 1884 if (!vport) 1885 goto out_kthread_stop; 1886 1887 shost = lpfc_shost_from_vport(vport); 1888 phba->pport = vport; 1889 lpfc_debugfs_initialize(vport); 1890 1891 pci_set_drvdata(pdev, shost); 1892 1893 if (phba->cfg_use_msi) { 1894 error = pci_enable_msi(phba->pcidev); 1895 if (!error) 1896 phba->using_msi = 1; 1897 else 1898 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1899 "0452 Enable MSI failed, continuing " 1900 "with IRQ\n"); 1901 } 1902 1903 error = request_irq(phba->pcidev->irq, lpfc_intr_handler, IRQF_SHARED, 1904 LPFC_DRIVER_NAME, phba); 1905 if (error) { 1906 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1907 "0451 Enable interrupt handler failed\n"); 1908 goto out_disable_msi; 1909 } 1910 1911 phba->MBslimaddr = phba->slim_memmap_p; 1912 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 1913 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 1914 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 1915 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 1916 1917 if (lpfc_alloc_sysfs_attr(vport)) 1918 goto out_free_irq; 1919 1920 if (lpfc_sli_hba_setup(phba)) 1921 goto out_remove_device; 1922 1923 /* 1924 * hba setup may have changed the hba_queue_depth so we need to adjust 1925 * the value of can_queue. 1926 */ 1927 shost->can_queue = phba->cfg_hba_queue_depth - 10; 1928 1929 lpfc_host_attrib_init(shost); 1930 1931 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 1932 spin_lock_irq(shost->host_lock); 1933 lpfc_poll_start_timer(phba); 1934 spin_unlock_irq(shost->host_lock); 1935 } 1936 1937 scsi_scan_host(shost); 1938 1939 return 0; 1940 1941 out_remove_device: 1942 lpfc_free_sysfs_attr(vport); 1943 spin_lock_irq(shost->host_lock); 1944 vport->load_flag |= FC_UNLOADING; 1945 spin_unlock_irq(shost->host_lock); 1946 out_free_irq: 1947 lpfc_stop_phba_timers(phba); 1948 phba->pport->work_port_events = 0; 1949 free_irq(phba->pcidev->irq, phba); 1950 out_disable_msi: 1951 if (phba->using_msi) 1952 pci_disable_msi(phba->pcidev); 1953 destroy_port(vport); 1954 out_kthread_stop: 1955 kthread_stop(phba->worker_thread); 1956 out_free_iocbq: 1957 list_for_each_entry_safe(iocbq_entry, iocbq_next, 1958 &phba->lpfc_iocb_list, list) { 1959 kfree(iocbq_entry); 1960 phba->total_iocbq_bufs--; 1961 } 1962 lpfc_mem_free(phba); 1963 out_free_hbqslimp: 1964 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), phba->hbqslimp.virt, 1965 phba->hbqslimp.phys); 1966 out_free_slim: 1967 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, phba->slim2p, 1968 phba->slim2p_mapping); 1969 out_iounmap: 1970 iounmap(phba->ctrl_regs_memmap_p); 1971 out_iounmap_slim: 1972 iounmap(phba->slim_memmap_p); 1973 out_idr_remove: 1974 idr_remove(&lpfc_hba_index, phba->brd_no); 1975 out_free_phba: 1976 kfree(phba); 1977 out_release_regions: 1978 pci_release_regions(pdev); 1979 out_disable_device: 1980 pci_disable_device(pdev); 1981 out: 1982 pci_set_drvdata(pdev, NULL); 1983 if (shost) 1984 scsi_host_put(shost); 1985 return error; 1986 } 1987 1988 static void __devexit 1989 lpfc_pci_remove_one(struct pci_dev *pdev) 1990 { 1991 struct Scsi_Host *shost = pci_get_drvdata(pdev); 1992 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1993 struct lpfc_hba *phba = vport->phba; 1994 spin_lock_irq(&phba->hbalock); 1995 vport->load_flag |= FC_UNLOADING; 1996 spin_unlock_irq(&phba->hbalock); 1997 1998 kfree(vport->vname); 1999 lpfc_free_sysfs_attr(vport); 2000 2001 fc_remove_host(shost); 2002 scsi_remove_host(shost); 2003 /* 2004 * Bring down the SLI Layer. This step disable all interrupts, 2005 * clears the rings, discards all mailbox commands, and resets 2006 * the HBA. 2007 */ 2008 lpfc_sli_hba_down(phba); 2009 lpfc_sli_brdrestart(phba); 2010 2011 lpfc_stop_phba_timers(phba); 2012 spin_lock_irq(&phba->hbalock); 2013 list_del_init(&vport->listentry); 2014 spin_unlock_irq(&phba->hbalock); 2015 2016 lpfc_debugfs_terminate(vport); 2017 lpfc_cleanup(vport); 2018 2019 kthread_stop(phba->worker_thread); 2020 2021 /* Release the irq reservation */ 2022 free_irq(phba->pcidev->irq, phba); 2023 if (phba->using_msi) 2024 pci_disable_msi(phba->pcidev); 2025 2026 pci_set_drvdata(pdev, NULL); 2027 scsi_host_put(shost); 2028 2029 /* 2030 * Call scsi_free before mem_free since scsi bufs are released to their 2031 * corresponding pools here. 2032 */ 2033 lpfc_scsi_free(phba); 2034 lpfc_mem_free(phba); 2035 2036 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), phba->hbqslimp.virt, 2037 phba->hbqslimp.phys); 2038 2039 /* Free resources associated with SLI2 interface */ 2040 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 2041 phba->slim2p, phba->slim2p_mapping); 2042 2043 /* unmap adapter SLIM and Control Registers */ 2044 iounmap(phba->ctrl_regs_memmap_p); 2045 iounmap(phba->slim_memmap_p); 2046 2047 idr_remove(&lpfc_hba_index, phba->brd_no); 2048 2049 kfree(phba); 2050 2051 pci_release_regions(pdev); 2052 pci_disable_device(pdev); 2053 } 2054 2055 /** 2056 * lpfc_io_error_detected - called when PCI error is detected 2057 * @pdev: Pointer to PCI device 2058 * @state: The current pci conneection state 2059 * 2060 * This function is called after a PCI bus error affecting 2061 * this device has been detected. 2062 */ 2063 static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev, 2064 pci_channel_state_t state) 2065 { 2066 struct Scsi_Host *shost = pci_get_drvdata(pdev); 2067 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2068 struct lpfc_sli *psli = &phba->sli; 2069 struct lpfc_sli_ring *pring; 2070 2071 if (state == pci_channel_io_perm_failure) 2072 return PCI_ERS_RESULT_DISCONNECT; 2073 2074 pci_disable_device(pdev); 2075 /* 2076 * There may be I/Os dropped by the firmware. 2077 * Error iocb (I/O) on txcmplq and let the SCSI layer 2078 * retry it after re-establishing link. 2079 */ 2080 pring = &psli->ring[psli->fcp_ring]; 2081 lpfc_sli_abort_iocb_ring(phba, pring); 2082 2083 /* Release the irq reservation */ 2084 free_irq(phba->pcidev->irq, phba); 2085 if (phba->using_msi) 2086 pci_disable_msi(phba->pcidev); 2087 2088 /* Request a slot reset. */ 2089 return PCI_ERS_RESULT_NEED_RESET; 2090 } 2091 2092 /** 2093 * lpfc_io_slot_reset - called after the pci bus has been reset. 2094 * @pdev: Pointer to PCI device 2095 * 2096 * Restart the card from scratch, as if from a cold-boot. 2097 */ 2098 static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev) 2099 { 2100 struct Scsi_Host *shost = pci_get_drvdata(pdev); 2101 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2102 struct lpfc_sli *psli = &phba->sli; 2103 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 2104 2105 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 2106 if (pci_enable_device_bars(pdev, bars)) { 2107 printk(KERN_ERR "lpfc: Cannot re-enable " 2108 "PCI device after reset.\n"); 2109 return PCI_ERS_RESULT_DISCONNECT; 2110 } 2111 2112 pci_set_master(pdev); 2113 2114 /* Re-establishing Link */ 2115 spin_lock_irq(shost->host_lock); 2116 phba->pport->fc_flag |= FC_ESTABLISH_LINK; 2117 spin_unlock_irq(shost->host_lock); 2118 2119 spin_lock_irq(&phba->hbalock); 2120 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 2121 spin_unlock_irq(&phba->hbalock); 2122 2123 2124 /* Take device offline; this will perform cleanup */ 2125 lpfc_offline(phba); 2126 lpfc_sli_brdrestart(phba); 2127 2128 return PCI_ERS_RESULT_RECOVERED; 2129 } 2130 2131 /** 2132 * lpfc_io_resume - called when traffic can start flowing again. 2133 * @pdev: Pointer to PCI device 2134 * 2135 * This callback is called when the error recovery driver tells us that 2136 * its OK to resume normal operation. 2137 */ 2138 static void lpfc_io_resume(struct pci_dev *pdev) 2139 { 2140 struct Scsi_Host *shost = pci_get_drvdata(pdev); 2141 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2142 2143 if (lpfc_online(phba) == 0) { 2144 mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60); 2145 } 2146 } 2147 2148 static struct pci_device_id lpfc_id_table[] = { 2149 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 2150 PCI_ANY_ID, PCI_ANY_ID, }, 2151 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 2152 PCI_ANY_ID, PCI_ANY_ID, }, 2153 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 2154 PCI_ANY_ID, PCI_ANY_ID, }, 2155 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 2156 PCI_ANY_ID, PCI_ANY_ID, }, 2157 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 2158 PCI_ANY_ID, PCI_ANY_ID, }, 2159 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 2160 PCI_ANY_ID, PCI_ANY_ID, }, 2161 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 2162 PCI_ANY_ID, PCI_ANY_ID, }, 2163 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 2164 PCI_ANY_ID, PCI_ANY_ID, }, 2165 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 2166 PCI_ANY_ID, PCI_ANY_ID, }, 2167 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 2168 PCI_ANY_ID, PCI_ANY_ID, }, 2169 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 2170 PCI_ANY_ID, PCI_ANY_ID, }, 2171 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 2172 PCI_ANY_ID, PCI_ANY_ID, }, 2173 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 2174 PCI_ANY_ID, PCI_ANY_ID, }, 2175 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 2176 PCI_ANY_ID, PCI_ANY_ID, }, 2177 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 2178 PCI_ANY_ID, PCI_ANY_ID, }, 2179 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 2180 PCI_ANY_ID, PCI_ANY_ID, }, 2181 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 2182 PCI_ANY_ID, PCI_ANY_ID, }, 2183 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 2184 PCI_ANY_ID, PCI_ANY_ID, }, 2185 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 2186 PCI_ANY_ID, PCI_ANY_ID, }, 2187 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 2188 PCI_ANY_ID, PCI_ANY_ID, }, 2189 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 2190 PCI_ANY_ID, PCI_ANY_ID, }, 2191 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 2192 PCI_ANY_ID, PCI_ANY_ID, }, 2193 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 2194 PCI_ANY_ID, PCI_ANY_ID, }, 2195 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 2196 PCI_ANY_ID, PCI_ANY_ID, }, 2197 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 2198 PCI_ANY_ID, PCI_ANY_ID, }, 2199 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 2200 PCI_ANY_ID, PCI_ANY_ID, }, 2201 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 2202 PCI_ANY_ID, PCI_ANY_ID, }, 2203 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 2204 PCI_ANY_ID, PCI_ANY_ID, }, 2205 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 2206 PCI_ANY_ID, PCI_ANY_ID, }, 2207 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 2208 PCI_ANY_ID, PCI_ANY_ID, }, 2209 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 2210 PCI_ANY_ID, PCI_ANY_ID, }, 2211 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 2212 PCI_ANY_ID, PCI_ANY_ID, }, 2213 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 2214 PCI_ANY_ID, PCI_ANY_ID, }, 2215 { 0 } 2216 }; 2217 2218 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 2219 2220 static struct pci_error_handlers lpfc_err_handler = { 2221 .error_detected = lpfc_io_error_detected, 2222 .slot_reset = lpfc_io_slot_reset, 2223 .resume = lpfc_io_resume, 2224 }; 2225 2226 static struct pci_driver lpfc_driver = { 2227 .name = LPFC_DRIVER_NAME, 2228 .id_table = lpfc_id_table, 2229 .probe = lpfc_pci_probe_one, 2230 .remove = __devexit_p(lpfc_pci_remove_one), 2231 .err_handler = &lpfc_err_handler, 2232 }; 2233 2234 static int __init 2235 lpfc_init(void) 2236 { 2237 int error = 0; 2238 2239 printk(LPFC_MODULE_DESC "\n"); 2240 printk(LPFC_COPYRIGHT "\n"); 2241 2242 lpfc_transport_template = 2243 fc_attach_transport(&lpfc_transport_functions); 2244 lpfc_vport_transport_template = 2245 fc_attach_transport(&lpfc_vport_transport_functions); 2246 if (!lpfc_transport_template || !lpfc_vport_transport_template) 2247 return -ENOMEM; 2248 error = pci_register_driver(&lpfc_driver); 2249 if (error) { 2250 fc_release_transport(lpfc_transport_template); 2251 fc_release_transport(lpfc_vport_transport_template); 2252 } 2253 2254 return error; 2255 } 2256 2257 static void __exit 2258 lpfc_exit(void) 2259 { 2260 pci_unregister_driver(&lpfc_driver); 2261 fc_release_transport(lpfc_transport_template); 2262 fc_release_transport(lpfc_vport_transport_template); 2263 } 2264 2265 module_init(lpfc_init); 2266 module_exit(lpfc_exit); 2267 MODULE_LICENSE("GPL"); 2268 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 2269 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 2270 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 2271