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 **vports; 441 int i; 442 443 /* Disable interrupts */ 444 writel(0, phba->HCregaddr); 445 readl(phba->HCregaddr); /* flush */ 446 447 vports = lpfc_create_vport_work_array(phba); 448 if (vports != NULL) 449 for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++) 450 lpfc_cleanup_discovery_resources(vports[i]); 451 lpfc_destroy_vport_work_array(vports); 452 return 0; 453 } 454 455 /************************************************************************/ 456 /* */ 457 /* lpfc_hba_down_post */ 458 /* This routine will do uninitialization after the HBA is reset */ 459 /* when bringing down the SLI Layer. */ 460 /* This routine returns 0 on success. Any other return value */ 461 /* indicates an error. */ 462 /* */ 463 /************************************************************************/ 464 int 465 lpfc_hba_down_post(struct lpfc_hba *phba) 466 { 467 struct lpfc_sli *psli = &phba->sli; 468 struct lpfc_sli_ring *pring; 469 struct lpfc_dmabuf *mp, *next_mp; 470 int i; 471 472 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 473 lpfc_sli_hbqbuf_free_all(phba); 474 else { 475 /* Cleanup preposted buffers on the ELS ring */ 476 pring = &psli->ring[LPFC_ELS_RING]; 477 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 478 list_del(&mp->list); 479 pring->postbufq_cnt--; 480 lpfc_mbuf_free(phba, mp->virt, mp->phys); 481 kfree(mp); 482 } 483 } 484 485 for (i = 0; i < psli->num_rings; i++) { 486 pring = &psli->ring[i]; 487 lpfc_sli_abort_iocb_ring(phba, pring); 488 } 489 490 return 0; 491 } 492 493 /* HBA heart beat timeout handler */ 494 void 495 lpfc_hb_timeout(unsigned long ptr) 496 { 497 struct lpfc_hba *phba; 498 unsigned long iflag; 499 500 phba = (struct lpfc_hba *)ptr; 501 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 502 if (!(phba->pport->work_port_events & WORKER_HB_TMO)) 503 phba->pport->work_port_events |= WORKER_HB_TMO; 504 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 505 506 if (phba->work_wait) 507 wake_up(phba->work_wait); 508 return; 509 } 510 511 static void 512 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 513 { 514 unsigned long drvr_flag; 515 516 spin_lock_irqsave(&phba->hbalock, drvr_flag); 517 phba->hb_outstanding = 0; 518 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 519 520 mempool_free(pmboxq, phba->mbox_mem_pool); 521 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 522 !(phba->link_state == LPFC_HBA_ERROR) && 523 !(phba->pport->fc_flag & FC_UNLOADING)) 524 mod_timer(&phba->hb_tmofunc, 525 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 526 return; 527 } 528 529 void 530 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 531 { 532 LPFC_MBOXQ_t *pmboxq; 533 int retval; 534 struct lpfc_sli *psli = &phba->sli; 535 536 if ((phba->link_state == LPFC_HBA_ERROR) || 537 (phba->pport->fc_flag & FC_UNLOADING) || 538 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 539 return; 540 541 spin_lock_irq(&phba->pport->work_port_lock); 542 /* If the timer is already canceled do nothing */ 543 if (!(phba->pport->work_port_events & WORKER_HB_TMO)) { 544 spin_unlock_irq(&phba->pport->work_port_lock); 545 return; 546 } 547 548 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 549 jiffies)) { 550 spin_unlock_irq(&phba->pport->work_port_lock); 551 if (!phba->hb_outstanding) 552 mod_timer(&phba->hb_tmofunc, 553 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 554 else 555 mod_timer(&phba->hb_tmofunc, 556 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 557 return; 558 } 559 spin_unlock_irq(&phba->pport->work_port_lock); 560 561 /* If there is no heart beat outstanding, issue a heartbeat command */ 562 if (!phba->hb_outstanding) { 563 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 564 if (!pmboxq) { 565 mod_timer(&phba->hb_tmofunc, 566 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 567 return; 568 } 569 570 lpfc_heart_beat(phba, pmboxq); 571 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 572 pmboxq->vport = phba->pport; 573 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); 574 575 if (retval != MBX_BUSY && retval != MBX_SUCCESS) { 576 mempool_free(pmboxq, phba->mbox_mem_pool); 577 mod_timer(&phba->hb_tmofunc, 578 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 579 return; 580 } 581 mod_timer(&phba->hb_tmofunc, 582 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 583 phba->hb_outstanding = 1; 584 return; 585 } else { 586 /* 587 * If heart beat timeout called with hb_outstanding set we 588 * need to take the HBA offline. 589 */ 590 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 591 "%d:0459 Adapter heartbeat failure, taking " 592 "this port offline.\n", phba->brd_no); 593 594 spin_lock_irq(&phba->hbalock); 595 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 596 spin_unlock_irq(&phba->hbalock); 597 598 lpfc_offline_prep(phba); 599 lpfc_offline(phba); 600 lpfc_unblock_mgmt_io(phba); 601 phba->link_state = LPFC_HBA_ERROR; 602 lpfc_hba_down_post(phba); 603 } 604 } 605 606 /************************************************************************/ 607 /* */ 608 /* lpfc_handle_eratt */ 609 /* This routine will handle processing a Host Attention */ 610 /* Error Status event. This will be initialized */ 611 /* as a SLI layer callback routine. */ 612 /* */ 613 /************************************************************************/ 614 void 615 lpfc_handle_eratt(struct lpfc_hba *phba) 616 { 617 struct lpfc_vport *vport = phba->pport; 618 struct lpfc_sli *psli = &phba->sli; 619 struct lpfc_sli_ring *pring; 620 struct lpfc_vport **vports; 621 uint32_t event_data; 622 struct Scsi_Host *shost; 623 int i; 624 625 /* If the pci channel is offline, ignore possible errors, 626 * since we cannot communicate with the pci card anyway. */ 627 if (pci_channel_offline(phba->pcidev)) 628 return; 629 630 if (phba->work_hs & HS_FFER6 || 631 phba->work_hs & HS_FFER5) { 632 /* Re-establishing Link */ 633 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 634 "%d:1301 Re-establishing Link " 635 "Data: x%x x%x x%x\n", 636 phba->brd_no, phba->work_hs, 637 phba->work_status[0], phba->work_status[1]); 638 vports = lpfc_create_vport_work_array(phba); 639 if (vports != NULL) 640 for(i = 0; 641 i < LPFC_MAX_VPORTS && vports[i] != NULL; 642 i++){ 643 shost = lpfc_shost_from_vport(vports[i]); 644 spin_lock_irq(shost->host_lock); 645 vports[i]->fc_flag |= FC_ESTABLISH_LINK; 646 spin_unlock_irq(shost->host_lock); 647 } 648 lpfc_destroy_vport_work_array(vports); 649 spin_lock_irq(&phba->hbalock); 650 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 651 spin_unlock_irq(&phba->hbalock); 652 653 /* 654 * Firmware stops when it triggled erratt with HS_FFER6. 655 * That could cause the I/Os dropped by the firmware. 656 * Error iocb (I/O) on txcmplq and let the SCSI layer 657 * retry it after re-establishing link. 658 */ 659 pring = &psli->ring[psli->fcp_ring]; 660 lpfc_sli_abort_iocb_ring(phba, pring); 661 662 663 /* 664 * There was a firmware error. Take the hba offline and then 665 * attempt to restart it. 666 */ 667 lpfc_offline_prep(phba); 668 lpfc_offline(phba); 669 lpfc_sli_brdrestart(phba); 670 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 671 mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60); 672 lpfc_unblock_mgmt_io(phba); 673 return; 674 } 675 lpfc_unblock_mgmt_io(phba); 676 } else { 677 /* The if clause above forces this code path when the status 678 * failure is a value other than FFER6. Do not call the offline 679 * twice. This is the adapter hardware error path. 680 */ 681 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 682 "%d:0457 Adapter Hardware Error " 683 "Data: x%x x%x x%x\n", 684 phba->brd_no, phba->work_hs, 685 phba->work_status[0], phba->work_status[1]); 686 687 event_data = FC_REG_DUMP_EVENT; 688 shost = lpfc_shost_from_vport(vport); 689 fc_host_post_vendor_event(shost, fc_get_event_number(), 690 sizeof(event_data), (char *) &event_data, 691 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 692 693 spin_lock_irq(&phba->hbalock); 694 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 695 spin_unlock_irq(&phba->hbalock); 696 lpfc_offline_prep(phba); 697 lpfc_offline(phba); 698 lpfc_unblock_mgmt_io(phba); 699 phba->link_state = LPFC_HBA_ERROR; 700 lpfc_hba_down_post(phba); 701 } 702 } 703 704 /************************************************************************/ 705 /* */ 706 /* lpfc_handle_latt */ 707 /* This routine will handle processing a Host Attention */ 708 /* Link Status event. This will be initialized */ 709 /* as a SLI layer callback routine. */ 710 /* */ 711 /************************************************************************/ 712 void 713 lpfc_handle_latt(struct lpfc_hba *phba) 714 { 715 struct lpfc_vport *vport = phba->pport; 716 struct lpfc_sli *psli = &phba->sli; 717 LPFC_MBOXQ_t *pmb; 718 volatile uint32_t control; 719 struct lpfc_dmabuf *mp; 720 int rc = -ENOMEM; 721 722 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 723 if (!pmb) 724 goto lpfc_handle_latt_err_exit; 725 726 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 727 if (!mp) 728 goto lpfc_handle_latt_free_pmb; 729 730 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 731 if (!mp->virt) 732 goto lpfc_handle_latt_free_mp; 733 734 rc = -EIO; 735 736 /* Cleanup any outstanding ELS commands */ 737 lpfc_els_flush_all_cmd(phba); 738 739 psli->slistat.link_event++; 740 lpfc_read_la(phba, pmb, mp); 741 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 742 pmb->vport = vport; 743 rc = lpfc_sli_issue_mbox (phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB)); 744 if (rc == MBX_NOT_FINISHED) 745 goto lpfc_handle_latt_free_mbuf; 746 747 /* Clear Link Attention in HA REG */ 748 spin_lock_irq(&phba->hbalock); 749 writel(HA_LATT, phba->HAregaddr); 750 readl(phba->HAregaddr); /* flush */ 751 spin_unlock_irq(&phba->hbalock); 752 753 return; 754 755 lpfc_handle_latt_free_mbuf: 756 lpfc_mbuf_free(phba, mp->virt, mp->phys); 757 lpfc_handle_latt_free_mp: 758 kfree(mp); 759 lpfc_handle_latt_free_pmb: 760 mempool_free(pmb, phba->mbox_mem_pool); 761 lpfc_handle_latt_err_exit: 762 /* Enable Link attention interrupts */ 763 spin_lock_irq(&phba->hbalock); 764 psli->sli_flag |= LPFC_PROCESS_LA; 765 control = readl(phba->HCregaddr); 766 control |= HC_LAINT_ENA; 767 writel(control, phba->HCregaddr); 768 readl(phba->HCregaddr); /* flush */ 769 770 /* Clear Link Attention in HA REG */ 771 writel(HA_LATT, phba->HAregaddr); 772 readl(phba->HAregaddr); /* flush */ 773 spin_unlock_irq(&phba->hbalock); 774 lpfc_linkdown(phba); 775 phba->link_state = LPFC_HBA_ERROR; 776 777 /* The other case is an error from issue_mbox */ 778 if (rc == -ENOMEM) 779 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 780 "%d:0300 READ_LA: no buffers\n", 781 phba->brd_no); 782 783 return; 784 } 785 786 /************************************************************************/ 787 /* */ 788 /* lpfc_parse_vpd */ 789 /* This routine will parse the VPD data */ 790 /* */ 791 /************************************************************************/ 792 static int 793 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 794 { 795 uint8_t lenlo, lenhi; 796 int Length; 797 int i, j; 798 int finished = 0; 799 int index = 0; 800 801 if (!vpd) 802 return 0; 803 804 /* Vital Product */ 805 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 806 "%d:0455 Vital Product Data: x%x x%x x%x x%x\n", 807 phba->brd_no, 808 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 809 (uint32_t) vpd[3]); 810 while (!finished && (index < (len - 4))) { 811 switch (vpd[index]) { 812 case 0x82: 813 case 0x91: 814 index += 1; 815 lenlo = vpd[index]; 816 index += 1; 817 lenhi = vpd[index]; 818 index += 1; 819 i = ((((unsigned short)lenhi) << 8) + lenlo); 820 index += i; 821 break; 822 case 0x90: 823 index += 1; 824 lenlo = vpd[index]; 825 index += 1; 826 lenhi = vpd[index]; 827 index += 1; 828 Length = ((((unsigned short)lenhi) << 8) + lenlo); 829 if (Length > len - index) 830 Length = len - index; 831 while (Length > 0) { 832 /* Look for Serial Number */ 833 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 834 index += 2; 835 i = vpd[index]; 836 index += 1; 837 j = 0; 838 Length -= (3+i); 839 while(i--) { 840 phba->SerialNumber[j++] = vpd[index++]; 841 if (j == 31) 842 break; 843 } 844 phba->SerialNumber[j] = 0; 845 continue; 846 } 847 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 848 phba->vpd_flag |= VPD_MODEL_DESC; 849 index += 2; 850 i = vpd[index]; 851 index += 1; 852 j = 0; 853 Length -= (3+i); 854 while(i--) { 855 phba->ModelDesc[j++] = vpd[index++]; 856 if (j == 255) 857 break; 858 } 859 phba->ModelDesc[j] = 0; 860 continue; 861 } 862 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 863 phba->vpd_flag |= VPD_MODEL_NAME; 864 index += 2; 865 i = vpd[index]; 866 index += 1; 867 j = 0; 868 Length -= (3+i); 869 while(i--) { 870 phba->ModelName[j++] = vpd[index++]; 871 if (j == 79) 872 break; 873 } 874 phba->ModelName[j] = 0; 875 continue; 876 } 877 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 878 phba->vpd_flag |= VPD_PROGRAM_TYPE; 879 index += 2; 880 i = vpd[index]; 881 index += 1; 882 j = 0; 883 Length -= (3+i); 884 while(i--) { 885 phba->ProgramType[j++] = vpd[index++]; 886 if (j == 255) 887 break; 888 } 889 phba->ProgramType[j] = 0; 890 continue; 891 } 892 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 893 phba->vpd_flag |= VPD_PORT; 894 index += 2; 895 i = vpd[index]; 896 index += 1; 897 j = 0; 898 Length -= (3+i); 899 while(i--) { 900 phba->Port[j++] = vpd[index++]; 901 if (j == 19) 902 break; 903 } 904 phba->Port[j] = 0; 905 continue; 906 } 907 else { 908 index += 2; 909 i = vpd[index]; 910 index += 1; 911 index += i; 912 Length -= (3 + i); 913 } 914 } 915 finished = 0; 916 break; 917 case 0x78: 918 finished = 1; 919 break; 920 default: 921 index ++; 922 break; 923 } 924 } 925 926 return(1); 927 } 928 929 static void 930 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 931 { 932 lpfc_vpd_t *vp; 933 uint16_t dev_id = phba->pcidev->device; 934 int max_speed; 935 struct { 936 char * name; 937 int max_speed; 938 char * bus; 939 } m = {"<Unknown>", 0, ""}; 940 941 if (mdp && mdp[0] != '\0' 942 && descp && descp[0] != '\0') 943 return; 944 945 if (phba->lmt & LMT_10Gb) 946 max_speed = 10; 947 else if (phba->lmt & LMT_8Gb) 948 max_speed = 8; 949 else if (phba->lmt & LMT_4Gb) 950 max_speed = 4; 951 else if (phba->lmt & LMT_2Gb) 952 max_speed = 2; 953 else 954 max_speed = 1; 955 956 vp = &phba->vpd; 957 958 switch (dev_id) { 959 case PCI_DEVICE_ID_FIREFLY: 960 m = (typeof(m)){"LP6000", max_speed, "PCI"}; 961 break; 962 case PCI_DEVICE_ID_SUPERFLY: 963 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 964 m = (typeof(m)){"LP7000", max_speed, "PCI"}; 965 else 966 m = (typeof(m)){"LP7000E", max_speed, "PCI"}; 967 break; 968 case PCI_DEVICE_ID_DRAGONFLY: 969 m = (typeof(m)){"LP8000", max_speed, "PCI"}; 970 break; 971 case PCI_DEVICE_ID_CENTAUR: 972 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 973 m = (typeof(m)){"LP9002", max_speed, "PCI"}; 974 else 975 m = (typeof(m)){"LP9000", max_speed, "PCI"}; 976 break; 977 case PCI_DEVICE_ID_RFLY: 978 m = (typeof(m)){"LP952", max_speed, "PCI"}; 979 break; 980 case PCI_DEVICE_ID_PEGASUS: 981 m = (typeof(m)){"LP9802", max_speed, "PCI-X"}; 982 break; 983 case PCI_DEVICE_ID_THOR: 984 m = (typeof(m)){"LP10000", max_speed, "PCI-X"}; 985 break; 986 case PCI_DEVICE_ID_VIPER: 987 m = (typeof(m)){"LPX1000", max_speed, "PCI-X"}; 988 break; 989 case PCI_DEVICE_ID_PFLY: 990 m = (typeof(m)){"LP982", max_speed, "PCI-X"}; 991 break; 992 case PCI_DEVICE_ID_TFLY: 993 m = (typeof(m)){"LP1050", max_speed, "PCI-X"}; 994 break; 995 case PCI_DEVICE_ID_HELIOS: 996 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"}; 997 break; 998 case PCI_DEVICE_ID_HELIOS_SCSP: 999 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"}; 1000 break; 1001 case PCI_DEVICE_ID_HELIOS_DCSP: 1002 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"}; 1003 break; 1004 case PCI_DEVICE_ID_NEPTUNE: 1005 m = (typeof(m)){"LPe1000", max_speed, "PCIe"}; 1006 break; 1007 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1008 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"}; 1009 break; 1010 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1011 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"}; 1012 break; 1013 case PCI_DEVICE_ID_BMID: 1014 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"}; 1015 break; 1016 case PCI_DEVICE_ID_BSMB: 1017 m = (typeof(m)){"LP111", max_speed, "PCI-X2"}; 1018 break; 1019 case PCI_DEVICE_ID_ZEPHYR: 1020 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1021 break; 1022 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1023 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1024 break; 1025 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1026 m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"}; 1027 break; 1028 case PCI_DEVICE_ID_ZMID: 1029 m = (typeof(m)){"LPe1150", max_speed, "PCIe"}; 1030 break; 1031 case PCI_DEVICE_ID_ZSMB: 1032 m = (typeof(m)){"LPe111", max_speed, "PCIe"}; 1033 break; 1034 case PCI_DEVICE_ID_LP101: 1035 m = (typeof(m)){"LP101", max_speed, "PCI-X"}; 1036 break; 1037 case PCI_DEVICE_ID_LP10000S: 1038 m = (typeof(m)){"LP10000-S", max_speed, "PCI"}; 1039 break; 1040 case PCI_DEVICE_ID_LP11000S: 1041 m = (typeof(m)){"LP11000-S", max_speed, 1042 "PCI-X2"}; 1043 break; 1044 case PCI_DEVICE_ID_LPE11000S: 1045 m = (typeof(m)){"LPe11000-S", max_speed, 1046 "PCIe"}; 1047 break; 1048 case PCI_DEVICE_ID_SAT: 1049 m = (typeof(m)){"LPe12000", max_speed, "PCIe"}; 1050 break; 1051 case PCI_DEVICE_ID_SAT_MID: 1052 m = (typeof(m)){"LPe1250", max_speed, "PCIe"}; 1053 break; 1054 case PCI_DEVICE_ID_SAT_SMB: 1055 m = (typeof(m)){"LPe121", max_speed, "PCIe"}; 1056 break; 1057 case PCI_DEVICE_ID_SAT_DCSP: 1058 m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"}; 1059 break; 1060 case PCI_DEVICE_ID_SAT_SCSP: 1061 m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"}; 1062 break; 1063 case PCI_DEVICE_ID_SAT_S: 1064 m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"}; 1065 break; 1066 default: 1067 m = (typeof(m)){ NULL }; 1068 break; 1069 } 1070 1071 if (mdp && mdp[0] == '\0') 1072 snprintf(mdp, 79,"%s", m.name); 1073 if (descp && descp[0] == '\0') 1074 snprintf(descp, 255, 1075 "Emulex %s %dGb %s Fibre Channel Adapter", 1076 m.name, m.max_speed, m.bus); 1077 } 1078 1079 /**************************************************/ 1080 /* lpfc_post_buffer */ 1081 /* */ 1082 /* This routine will post count buffers to the */ 1083 /* ring with the QUE_RING_BUF_CN command. This */ 1084 /* allows 3 buffers / command to be posted. */ 1085 /* Returns the number of buffers NOT posted. */ 1086 /**************************************************/ 1087 int 1088 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt, 1089 int type) 1090 { 1091 IOCB_t *icmd; 1092 struct lpfc_iocbq *iocb; 1093 struct lpfc_dmabuf *mp1, *mp2; 1094 1095 cnt += pring->missbufcnt; 1096 1097 /* While there are buffers to post */ 1098 while (cnt > 0) { 1099 /* Allocate buffer for command iocb */ 1100 iocb = lpfc_sli_get_iocbq(phba); 1101 if (iocb == NULL) { 1102 pring->missbufcnt = cnt; 1103 return cnt; 1104 } 1105 icmd = &iocb->iocb; 1106 1107 /* 2 buffers can be posted per command */ 1108 /* Allocate buffer to post */ 1109 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1110 if (mp1) 1111 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1112 &mp1->phys); 1113 if (mp1 == 0 || mp1->virt == 0) { 1114 kfree(mp1); 1115 lpfc_sli_release_iocbq(phba, iocb); 1116 pring->missbufcnt = cnt; 1117 return cnt; 1118 } 1119 1120 INIT_LIST_HEAD(&mp1->list); 1121 /* Allocate buffer to post */ 1122 if (cnt > 1) { 1123 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1124 if (mp2) 1125 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1126 &mp2->phys); 1127 if (mp2 == 0 || mp2->virt == 0) { 1128 kfree(mp2); 1129 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1130 kfree(mp1); 1131 lpfc_sli_release_iocbq(phba, iocb); 1132 pring->missbufcnt = cnt; 1133 return cnt; 1134 } 1135 1136 INIT_LIST_HEAD(&mp2->list); 1137 } else { 1138 mp2 = NULL; 1139 } 1140 1141 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1142 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1143 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1144 icmd->ulpBdeCount = 1; 1145 cnt--; 1146 if (mp2) { 1147 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1148 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1149 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1150 cnt--; 1151 icmd->ulpBdeCount = 2; 1152 } 1153 1154 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1155 icmd->ulpLe = 1; 1156 1157 if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) { 1158 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1159 kfree(mp1); 1160 cnt++; 1161 if (mp2) { 1162 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1163 kfree(mp2); 1164 cnt++; 1165 } 1166 lpfc_sli_release_iocbq(phba, iocb); 1167 pring->missbufcnt = cnt; 1168 return cnt; 1169 } 1170 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1171 if (mp2) 1172 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1173 } 1174 pring->missbufcnt = 0; 1175 return 0; 1176 } 1177 1178 /************************************************************************/ 1179 /* */ 1180 /* lpfc_post_rcv_buf */ 1181 /* This routine post initial rcv buffers to the configured rings */ 1182 /* */ 1183 /************************************************************************/ 1184 static int 1185 lpfc_post_rcv_buf(struct lpfc_hba *phba) 1186 { 1187 struct lpfc_sli *psli = &phba->sli; 1188 1189 /* Ring 0, ELS / CT buffers */ 1190 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0, 1); 1191 /* Ring 2 - FCP no buffers needed */ 1192 1193 return 0; 1194 } 1195 1196 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 1197 1198 /************************************************************************/ 1199 /* */ 1200 /* lpfc_sha_init */ 1201 /* */ 1202 /************************************************************************/ 1203 static void 1204 lpfc_sha_init(uint32_t * HashResultPointer) 1205 { 1206 HashResultPointer[0] = 0x67452301; 1207 HashResultPointer[1] = 0xEFCDAB89; 1208 HashResultPointer[2] = 0x98BADCFE; 1209 HashResultPointer[3] = 0x10325476; 1210 HashResultPointer[4] = 0xC3D2E1F0; 1211 } 1212 1213 /************************************************************************/ 1214 /* */ 1215 /* lpfc_sha_iterate */ 1216 /* */ 1217 /************************************************************************/ 1218 static void 1219 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 1220 { 1221 int t; 1222 uint32_t TEMP; 1223 uint32_t A, B, C, D, E; 1224 t = 16; 1225 do { 1226 HashWorkingPointer[t] = 1227 S(1, 1228 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 1229 8] ^ 1230 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 1231 } while (++t <= 79); 1232 t = 0; 1233 A = HashResultPointer[0]; 1234 B = HashResultPointer[1]; 1235 C = HashResultPointer[2]; 1236 D = HashResultPointer[3]; 1237 E = HashResultPointer[4]; 1238 1239 do { 1240 if (t < 20) { 1241 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 1242 } else if (t < 40) { 1243 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 1244 } else if (t < 60) { 1245 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 1246 } else { 1247 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 1248 } 1249 TEMP += S(5, A) + E + HashWorkingPointer[t]; 1250 E = D; 1251 D = C; 1252 C = S(30, B); 1253 B = A; 1254 A = TEMP; 1255 } while (++t <= 79); 1256 1257 HashResultPointer[0] += A; 1258 HashResultPointer[1] += B; 1259 HashResultPointer[2] += C; 1260 HashResultPointer[3] += D; 1261 HashResultPointer[4] += E; 1262 1263 } 1264 1265 /************************************************************************/ 1266 /* */ 1267 /* lpfc_challenge_key */ 1268 /* */ 1269 /************************************************************************/ 1270 static void 1271 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 1272 { 1273 *HashWorking = (*RandomChallenge ^ *HashWorking); 1274 } 1275 1276 /************************************************************************/ 1277 /* */ 1278 /* lpfc_hba_init */ 1279 /* */ 1280 /************************************************************************/ 1281 void 1282 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 1283 { 1284 int t; 1285 uint32_t *HashWorking; 1286 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 1287 1288 HashWorking = kmalloc(80 * sizeof(uint32_t), GFP_KERNEL); 1289 if (!HashWorking) 1290 return; 1291 1292 memset(HashWorking, 0, (80 * sizeof(uint32_t))); 1293 HashWorking[0] = HashWorking[78] = *pwwnn++; 1294 HashWorking[1] = HashWorking[79] = *pwwnn; 1295 1296 for (t = 0; t < 7; t++) 1297 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 1298 1299 lpfc_sha_init(hbainit); 1300 lpfc_sha_iterate(hbainit, HashWorking); 1301 kfree(HashWorking); 1302 } 1303 1304 static void 1305 lpfc_cleanup(struct lpfc_vport *vport) 1306 { 1307 struct lpfc_nodelist *ndlp, *next_ndlp; 1308 1309 /* clean up phba - lpfc specific */ 1310 lpfc_can_disctmo(vport); 1311 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) 1312 lpfc_nlp_put(ndlp); 1313 return; 1314 } 1315 1316 static void 1317 lpfc_establish_link_tmo(unsigned long ptr) 1318 { 1319 struct lpfc_hba *phba = (struct lpfc_hba *) ptr; 1320 struct lpfc_vport **vports; 1321 unsigned long iflag; 1322 int i; 1323 1324 /* Re-establishing Link, timer expired */ 1325 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 1326 "%d:1300 Re-establishing Link, timer expired " 1327 "Data: x%x x%x\n", 1328 phba->brd_no, phba->pport->fc_flag, 1329 phba->pport->port_state); 1330 vports = lpfc_create_vport_work_array(phba); 1331 if (vports != NULL) 1332 for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++) { 1333 struct Scsi_Host *shost; 1334 shost = lpfc_shost_from_vport(vports[i]); 1335 spin_lock_irqsave(shost->host_lock, iflag); 1336 vports[i]->fc_flag &= ~FC_ESTABLISH_LINK; 1337 spin_unlock_irqrestore(shost->host_lock, iflag); 1338 } 1339 lpfc_destroy_vport_work_array(vports); 1340 } 1341 1342 void 1343 lpfc_stop_vport_timers(struct lpfc_vport *vport) 1344 { 1345 del_timer_sync(&vport->els_tmofunc); 1346 del_timer_sync(&vport->fc_fdmitmo); 1347 lpfc_can_disctmo(vport); 1348 return; 1349 } 1350 1351 static void 1352 lpfc_stop_phba_timers(struct lpfc_hba *phba) 1353 { 1354 struct lpfc_vport **vports; 1355 int i; 1356 1357 del_timer_sync(&phba->fcp_poll_timer); 1358 del_timer_sync(&phba->fc_estabtmo); 1359 vports = lpfc_create_vport_work_array(phba); 1360 if (vports != NULL) 1361 for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++) 1362 lpfc_stop_vport_timers(vports[i]); 1363 lpfc_destroy_vport_work_array(vports); 1364 del_timer_sync(&phba->sli.mbox_tmo); 1365 del_timer_sync(&phba->fabric_block_timer); 1366 phba->hb_outstanding = 0; 1367 del_timer_sync(&phba->hb_tmofunc); 1368 return; 1369 } 1370 1371 int 1372 lpfc_online(struct lpfc_hba *phba) 1373 { 1374 struct lpfc_vport *vport = phba->pport; 1375 struct lpfc_vport **vports; 1376 int i; 1377 1378 if (!phba) 1379 return 0; 1380 1381 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 1382 return 0; 1383 1384 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1385 "%d:0458 Bring Adapter online\n", 1386 phba->brd_no); 1387 1388 lpfc_block_mgmt_io(phba); 1389 1390 if (!lpfc_sli_queue_setup(phba)) { 1391 lpfc_unblock_mgmt_io(phba); 1392 return 1; 1393 } 1394 1395 if (lpfc_sli_hba_setup(phba)) { /* Initialize the HBA */ 1396 lpfc_unblock_mgmt_io(phba); 1397 return 1; 1398 } 1399 1400 vports = lpfc_create_vport_work_array(phba); 1401 if (vports != NULL) 1402 for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++) { 1403 struct Scsi_Host *shost; 1404 shost = lpfc_shost_from_vport(vports[i]); 1405 spin_lock_irq(shost->host_lock); 1406 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 1407 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 1408 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 1409 spin_unlock_irq(shost->host_lock); 1410 } 1411 lpfc_destroy_vport_work_array(vports); 1412 1413 lpfc_unblock_mgmt_io(phba); 1414 return 0; 1415 } 1416 1417 void 1418 lpfc_block_mgmt_io(struct lpfc_hba * phba) 1419 { 1420 unsigned long iflag; 1421 1422 spin_lock_irqsave(&phba->hbalock, iflag); 1423 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 1424 spin_unlock_irqrestore(&phba->hbalock, iflag); 1425 } 1426 1427 void 1428 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 1429 { 1430 unsigned long iflag; 1431 1432 spin_lock_irqsave(&phba->hbalock, iflag); 1433 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 1434 spin_unlock_irqrestore(&phba->hbalock, iflag); 1435 } 1436 1437 void 1438 lpfc_offline_prep(struct lpfc_hba * phba) 1439 { 1440 struct lpfc_vport *vport = phba->pport; 1441 struct lpfc_nodelist *ndlp, *next_ndlp; 1442 1443 if (vport->fc_flag & FC_OFFLINE_MODE) 1444 return; 1445 1446 lpfc_block_mgmt_io(phba); 1447 1448 lpfc_linkdown(phba); 1449 1450 /* Issue an unreg_login to all nodes */ 1451 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) 1452 if (ndlp->nlp_state != NLP_STE_UNUSED_NODE) 1453 lpfc_unreg_rpi(vport, ndlp); 1454 1455 lpfc_sli_flush_mbox_queue(phba); 1456 } 1457 1458 void 1459 lpfc_offline(struct lpfc_hba *phba) 1460 { 1461 struct Scsi_Host *shost; 1462 struct lpfc_vport **vports; 1463 int i; 1464 1465 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 1466 return; 1467 1468 /* stop all timers associated with this hba */ 1469 lpfc_stop_phba_timers(phba); 1470 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1471 "%d:0460 Bring Adapter offline\n", 1472 phba->brd_no); 1473 /* Bring down the SLI Layer and cleanup. The HBA is offline 1474 now. */ 1475 lpfc_sli_hba_down(phba); 1476 spin_lock_irq(&phba->hbalock); 1477 phba->work_ha = 0; 1478 spin_unlock_irq(&phba->hbalock); 1479 vports = lpfc_create_vport_work_array(phba); 1480 if (vports != NULL) 1481 for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++) { 1482 shost = lpfc_shost_from_vport(vports[i]); 1483 lpfc_cleanup(vports[i]); 1484 spin_lock_irq(shost->host_lock); 1485 vports[i]->work_port_events = 0; 1486 vports[i]->fc_flag |= FC_OFFLINE_MODE; 1487 spin_unlock_irq(shost->host_lock); 1488 } 1489 lpfc_destroy_vport_work_array(vports); 1490 } 1491 1492 /****************************************************************************** 1493 * Function name: lpfc_scsi_free 1494 * 1495 * Description: Called from lpfc_pci_remove_one free internal driver resources 1496 * 1497 ******************************************************************************/ 1498 static int 1499 lpfc_scsi_free(struct lpfc_hba *phba) 1500 { 1501 struct lpfc_scsi_buf *sb, *sb_next; 1502 struct lpfc_iocbq *io, *io_next; 1503 1504 spin_lock_irq(&phba->hbalock); 1505 /* Release all the lpfc_scsi_bufs maintained by this host. */ 1506 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 1507 list_del(&sb->list); 1508 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 1509 sb->dma_handle); 1510 kfree(sb); 1511 phba->total_scsi_bufs--; 1512 } 1513 1514 /* Release all the lpfc_iocbq entries maintained by this host. */ 1515 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 1516 list_del(&io->list); 1517 kfree(io); 1518 phba->total_iocbq_bufs--; 1519 } 1520 1521 spin_unlock_irq(&phba->hbalock); 1522 1523 return 0; 1524 } 1525 1526 struct lpfc_vport * 1527 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 1528 { 1529 struct lpfc_vport *vport; 1530 struct Scsi_Host *shost; 1531 int error = 0; 1532 1533 if (dev != &phba->pcidev->dev) 1534 shost = scsi_host_alloc(&lpfc_vport_template, 1535 sizeof(struct lpfc_vport)); 1536 else 1537 shost = scsi_host_alloc(&lpfc_template, 1538 sizeof(struct lpfc_vport)); 1539 if (!shost) 1540 goto out; 1541 1542 vport = (struct lpfc_vport *) shost->hostdata; 1543 vport->phba = phba; 1544 1545 vport->load_flag |= FC_LOADING; 1546 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 1547 1548 lpfc_get_vport_cfgparam(vport); 1549 shost->unique_id = instance; 1550 shost->max_id = LPFC_MAX_TARGET; 1551 shost->max_lun = vport->cfg_max_luns; 1552 shost->this_id = -1; 1553 shost->max_cmd_len = 16; 1554 /* 1555 * Set initial can_queue value since 0 is no longer supported and 1556 * scsi_add_host will fail. This will be adjusted later based on the 1557 * max xri value determined in hba setup. 1558 */ 1559 shost->can_queue = phba->cfg_hba_queue_depth - 10; 1560 if (dev != &phba->pcidev->dev) { 1561 shost->transportt = lpfc_vport_transport_template; 1562 vport->port_type = LPFC_NPIV_PORT; 1563 } else { 1564 shost->transportt = lpfc_transport_template; 1565 vport->port_type = LPFC_PHYSICAL_PORT; 1566 } 1567 1568 /* Initialize all internally managed lists. */ 1569 INIT_LIST_HEAD(&vport->fc_nodes); 1570 spin_lock_init(&vport->work_port_lock); 1571 1572 init_timer(&vport->fc_disctmo); 1573 vport->fc_disctmo.function = lpfc_disc_timeout; 1574 vport->fc_disctmo.data = (unsigned long)vport; 1575 1576 init_timer(&vport->fc_fdmitmo); 1577 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 1578 vport->fc_fdmitmo.data = (unsigned long)vport; 1579 1580 init_timer(&vport->els_tmofunc); 1581 vport->els_tmofunc.function = lpfc_els_timeout; 1582 vport->els_tmofunc.data = (unsigned long)vport; 1583 1584 error = scsi_add_host(shost, dev); 1585 if (error) 1586 goto out_put_shost; 1587 1588 spin_lock_irq(&phba->hbalock); 1589 list_add_tail(&vport->listentry, &phba->port_list); 1590 spin_unlock_irq(&phba->hbalock); 1591 return vport; 1592 1593 out_put_shost: 1594 scsi_host_put(shost); 1595 out: 1596 return NULL; 1597 } 1598 1599 void 1600 destroy_port(struct lpfc_vport *vport) 1601 { 1602 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 1603 struct lpfc_hba *phba = vport->phba; 1604 1605 kfree(vport->vname); 1606 1607 lpfc_debugfs_terminate(vport); 1608 fc_remove_host(shost); 1609 scsi_remove_host(shost); 1610 1611 spin_lock_irq(&phba->hbalock); 1612 list_del_init(&vport->listentry); 1613 spin_unlock_irq(&phba->hbalock); 1614 1615 lpfc_cleanup(vport); 1616 return; 1617 } 1618 1619 int 1620 lpfc_get_instance(void) 1621 { 1622 int instance = 0; 1623 1624 /* Assign an unused number */ 1625 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 1626 return -1; 1627 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 1628 return -1; 1629 return instance; 1630 } 1631 1632 /* 1633 * Note: there is no scan_start function as adapter initialization 1634 * will have asynchronously kicked off the link initialization. 1635 */ 1636 1637 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 1638 { 1639 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1640 struct lpfc_hba *phba = vport->phba; 1641 int stat = 0; 1642 1643 spin_lock_irq(shost->host_lock); 1644 1645 if (vport->fc_flag & FC_UNLOADING) { 1646 stat = 1; 1647 goto finished; 1648 } 1649 if (time >= 30 * HZ) { 1650 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1651 "%d:0461 Scanning longer than 30 " 1652 "seconds. Continuing initialization\n", 1653 phba->brd_no); 1654 stat = 1; 1655 goto finished; 1656 } 1657 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 1658 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1659 "%d:0465 Link down longer than 15 " 1660 "seconds. Continuing initialization\n", 1661 phba->brd_no); 1662 stat = 1; 1663 goto finished; 1664 } 1665 1666 if (vport->port_state != LPFC_VPORT_READY) 1667 goto finished; 1668 if (vport->num_disc_nodes || vport->fc_prli_sent) 1669 goto finished; 1670 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 1671 goto finished; 1672 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 1673 goto finished; 1674 1675 stat = 1; 1676 1677 finished: 1678 spin_unlock_irq(shost->host_lock); 1679 return stat; 1680 } 1681 1682 void lpfc_host_attrib_init(struct Scsi_Host *shost) 1683 { 1684 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1685 struct lpfc_hba *phba = vport->phba; 1686 /* 1687 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 1688 */ 1689 1690 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 1691 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 1692 fc_host_supported_classes(shost) = FC_COS_CLASS3; 1693 1694 memset(fc_host_supported_fc4s(shost), 0, 1695 sizeof(fc_host_supported_fc4s(shost))); 1696 fc_host_supported_fc4s(shost)[2] = 1; 1697 fc_host_supported_fc4s(shost)[7] = 1; 1698 1699 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 1700 sizeof fc_host_symbolic_name(shost)); 1701 1702 fc_host_supported_speeds(shost) = 0; 1703 if (phba->lmt & LMT_10Gb) 1704 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 1705 if (phba->lmt & LMT_4Gb) 1706 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 1707 if (phba->lmt & LMT_2Gb) 1708 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 1709 if (phba->lmt & LMT_1Gb) 1710 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 1711 1712 fc_host_maxframe_size(shost) = 1713 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 1714 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 1715 1716 /* This value is also unchanging */ 1717 memset(fc_host_active_fc4s(shost), 0, 1718 sizeof(fc_host_active_fc4s(shost))); 1719 fc_host_active_fc4s(shost)[2] = 1; 1720 fc_host_active_fc4s(shost)[7] = 1; 1721 1722 fc_host_max_npiv_vports(shost) = phba->max_vpi; 1723 spin_lock_irq(shost->host_lock); 1724 vport->fc_flag &= ~FC_LOADING; 1725 spin_unlock_irq(shost->host_lock); 1726 } 1727 1728 static int __devinit 1729 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 1730 { 1731 struct lpfc_vport *vport = NULL; 1732 struct lpfc_hba *phba; 1733 struct lpfc_sli *psli; 1734 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 1735 struct Scsi_Host *shost = NULL; 1736 unsigned long bar0map_len, bar2map_len; 1737 int error = -ENODEV; 1738 int i; 1739 uint16_t iotag; 1740 1741 if (pci_enable_device(pdev)) 1742 goto out; 1743 if (pci_request_regions(pdev, LPFC_DRIVER_NAME)) 1744 goto out_disable_device; 1745 1746 phba = kzalloc(sizeof (struct lpfc_hba), GFP_KERNEL); 1747 if (!phba) 1748 goto out_release_regions; 1749 1750 spin_lock_init(&phba->hbalock); 1751 1752 phba->pcidev = pdev; 1753 1754 /* Assign an unused board number */ 1755 if ((phba->brd_no = lpfc_get_instance()) < 0) 1756 goto out_free_phba; 1757 1758 INIT_LIST_HEAD(&phba->port_list); 1759 INIT_LIST_HEAD(&phba->hbq_buffer_list); 1760 /* 1761 * Get all the module params for configuring this host and then 1762 * establish the host. 1763 */ 1764 lpfc_get_cfgparam(phba); 1765 phba->max_vpi = LPFC_MAX_VPI; 1766 1767 /* Initialize timers used by driver */ 1768 init_timer(&phba->fc_estabtmo); 1769 phba->fc_estabtmo.function = lpfc_establish_link_tmo; 1770 phba->fc_estabtmo.data = (unsigned long)phba; 1771 1772 init_timer(&phba->hb_tmofunc); 1773 phba->hb_tmofunc.function = lpfc_hb_timeout; 1774 phba->hb_tmofunc.data = (unsigned long)phba; 1775 1776 psli = &phba->sli; 1777 init_timer(&psli->mbox_tmo); 1778 psli->mbox_tmo.function = lpfc_mbox_timeout; 1779 psli->mbox_tmo.data = (unsigned long) phba; 1780 init_timer(&phba->fcp_poll_timer); 1781 phba->fcp_poll_timer.function = lpfc_poll_timeout; 1782 phba->fcp_poll_timer.data = (unsigned long) phba; 1783 init_timer(&phba->fabric_block_timer); 1784 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 1785 phba->fabric_block_timer.data = (unsigned long) phba; 1786 1787 pci_set_master(pdev); 1788 pci_try_set_mwi(pdev); 1789 1790 if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0) 1791 if (pci_set_dma_mask(phba->pcidev, DMA_32BIT_MASK) != 0) 1792 goto out_idr_remove; 1793 1794 /* 1795 * Get the bus address of Bar0 and Bar2 and the number of bytes 1796 * required by each mapping. 1797 */ 1798 phba->pci_bar0_map = pci_resource_start(phba->pcidev, 0); 1799 bar0map_len = pci_resource_len(phba->pcidev, 0); 1800 1801 phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2); 1802 bar2map_len = pci_resource_len(phba->pcidev, 2); 1803 1804 /* Map HBA SLIM to a kernel virtual address. */ 1805 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 1806 if (!phba->slim_memmap_p) { 1807 error = -ENODEV; 1808 dev_printk(KERN_ERR, &pdev->dev, 1809 "ioremap failed for SLIM memory.\n"); 1810 goto out_idr_remove; 1811 } 1812 1813 /* Map HBA Control Registers to a kernel virtual address. */ 1814 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 1815 if (!phba->ctrl_regs_memmap_p) { 1816 error = -ENODEV; 1817 dev_printk(KERN_ERR, &pdev->dev, 1818 "ioremap failed for HBA control registers.\n"); 1819 goto out_iounmap_slim; 1820 } 1821 1822 /* Allocate memory for SLI-2 structures */ 1823 phba->slim2p = dma_alloc_coherent(&phba->pcidev->dev, SLI2_SLIM_SIZE, 1824 &phba->slim2p_mapping, GFP_KERNEL); 1825 if (!phba->slim2p) 1826 goto out_iounmap; 1827 1828 memset(phba->slim2p, 0, SLI2_SLIM_SIZE); 1829 1830 phba->hbqslimp.virt = dma_alloc_coherent(&phba->pcidev->dev, 1831 lpfc_sli_hbq_size(), 1832 &phba->hbqslimp.phys, 1833 GFP_KERNEL); 1834 if (!phba->hbqslimp.virt) 1835 goto out_free_slim; 1836 1837 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 1838 1839 /* Initialize the SLI Layer to run with lpfc HBAs. */ 1840 lpfc_sli_setup(phba); 1841 lpfc_sli_queue_setup(phba); 1842 1843 error = lpfc_mem_alloc(phba); 1844 if (error) 1845 goto out_free_hbqslimp; 1846 1847 /* Initialize and populate the iocb list per host. */ 1848 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 1849 for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) { 1850 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 1851 if (iocbq_entry == NULL) { 1852 printk(KERN_ERR "%s: only allocated %d iocbs of " 1853 "expected %d count. Unloading driver.\n", 1854 __FUNCTION__, i, LPFC_IOCB_LIST_CNT); 1855 error = -ENOMEM; 1856 goto out_free_iocbq; 1857 } 1858 1859 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 1860 if (iotag == 0) { 1861 kfree (iocbq_entry); 1862 printk(KERN_ERR "%s: failed to allocate IOTAG. " 1863 "Unloading driver.\n", 1864 __FUNCTION__); 1865 error = -ENOMEM; 1866 goto out_free_iocbq; 1867 } 1868 1869 spin_lock_irq(&phba->hbalock); 1870 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 1871 phba->total_iocbq_bufs++; 1872 spin_unlock_irq(&phba->hbalock); 1873 } 1874 1875 /* Initialize HBA structure */ 1876 phba->fc_edtov = FF_DEF_EDTOV; 1877 phba->fc_ratov = FF_DEF_RATOV; 1878 phba->fc_altov = FF_DEF_ALTOV; 1879 phba->fc_arbtov = FF_DEF_ARBTOV; 1880 1881 INIT_LIST_HEAD(&phba->work_list); 1882 phba->work_ha_mask = (HA_ERATT|HA_MBATT|HA_LATT); 1883 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 1884 1885 /* Startup the kernel thread for this host adapter. */ 1886 phba->worker_thread = kthread_run(lpfc_do_work, phba, 1887 "lpfc_worker_%d", phba->brd_no); 1888 if (IS_ERR(phba->worker_thread)) { 1889 error = PTR_ERR(phba->worker_thread); 1890 goto out_free_iocbq; 1891 } 1892 1893 /* Initialize the list of scsi buffers used by driver for scsi IO. */ 1894 spin_lock_init(&phba->scsi_buf_list_lock); 1895 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 1896 1897 /* Initialize list of fabric iocbs */ 1898 INIT_LIST_HEAD(&phba->fabric_iocb_list); 1899 1900 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 1901 if (!vport) 1902 goto out_kthread_stop; 1903 1904 shost = lpfc_shost_from_vport(vport); 1905 phba->pport = vport; 1906 lpfc_debugfs_initialize(vport); 1907 1908 pci_set_drvdata(pdev, shost); 1909 1910 if (phba->cfg_use_msi) { 1911 error = pci_enable_msi(phba->pcidev); 1912 if (error) 1913 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "%d:0452 " 1914 "Enable MSI failed, continuing with " 1915 "IRQ\n", phba->brd_no); 1916 } 1917 1918 error = request_irq(phba->pcidev->irq, lpfc_intr_handler, IRQF_SHARED, 1919 LPFC_DRIVER_NAME, phba); 1920 if (error) { 1921 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1922 "%d:0451 Enable interrupt handler failed\n", 1923 phba->brd_no); 1924 goto out_disable_msi; 1925 } 1926 1927 phba->MBslimaddr = phba->slim_memmap_p; 1928 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 1929 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 1930 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 1931 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 1932 1933 if (lpfc_alloc_sysfs_attr(vport)) 1934 goto out_free_irq; 1935 1936 if (lpfc_sli_hba_setup(phba)) 1937 goto out_remove_device; 1938 1939 /* 1940 * hba setup may have changed the hba_queue_depth so we need to adjust 1941 * the value of can_queue. 1942 */ 1943 shost->can_queue = phba->cfg_hba_queue_depth - 10; 1944 1945 lpfc_host_attrib_init(shost); 1946 1947 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 1948 spin_lock_irq(shost->host_lock); 1949 lpfc_poll_start_timer(phba); 1950 spin_unlock_irq(shost->host_lock); 1951 } 1952 1953 scsi_scan_host(shost); 1954 1955 return 0; 1956 1957 out_remove_device: 1958 lpfc_free_sysfs_attr(vport); 1959 spin_lock_irq(shost->host_lock); 1960 vport->fc_flag |= FC_UNLOADING; 1961 spin_unlock_irq(shost->host_lock); 1962 out_free_irq: 1963 lpfc_stop_phba_timers(phba); 1964 phba->pport->work_port_events = 0; 1965 free_irq(phba->pcidev->irq, phba); 1966 out_disable_msi: 1967 pci_disable_msi(phba->pcidev); 1968 destroy_port(vport); 1969 out_kthread_stop: 1970 kthread_stop(phba->worker_thread); 1971 out_free_iocbq: 1972 list_for_each_entry_safe(iocbq_entry, iocbq_next, 1973 &phba->lpfc_iocb_list, list) { 1974 kfree(iocbq_entry); 1975 phba->total_iocbq_bufs--; 1976 } 1977 lpfc_mem_free(phba); 1978 out_free_hbqslimp: 1979 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), phba->hbqslimp.virt, 1980 phba->hbqslimp.phys); 1981 out_free_slim: 1982 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, phba->slim2p, 1983 phba->slim2p_mapping); 1984 out_iounmap: 1985 iounmap(phba->ctrl_regs_memmap_p); 1986 out_iounmap_slim: 1987 iounmap(phba->slim_memmap_p); 1988 out_idr_remove: 1989 idr_remove(&lpfc_hba_index, phba->brd_no); 1990 out_free_phba: 1991 kfree(phba); 1992 out_release_regions: 1993 pci_release_regions(pdev); 1994 out_disable_device: 1995 pci_disable_device(pdev); 1996 out: 1997 pci_set_drvdata(pdev, NULL); 1998 if (shost) 1999 scsi_host_put(shost); 2000 return error; 2001 } 2002 2003 static void __devexit 2004 lpfc_pci_remove_one(struct pci_dev *pdev) 2005 { 2006 struct Scsi_Host *shost = pci_get_drvdata(pdev); 2007 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2008 struct lpfc_hba *phba = vport->phba; 2009 struct lpfc_vport *port_iterator; 2010 spin_lock_irq(&phba->hbalock); 2011 list_for_each_entry(port_iterator, &phba->port_list, listentry) 2012 port_iterator->load_flag |= FC_UNLOADING; 2013 spin_unlock_irq(&phba->hbalock); 2014 2015 kfree(vport->vname); 2016 lpfc_free_sysfs_attr(vport); 2017 2018 fc_remove_host(shost); 2019 scsi_remove_host(shost); 2020 2021 /* 2022 * Bring down the SLI Layer. This step disable all interrupts, 2023 * clears the rings, discards all mailbox commands, and resets 2024 * the HBA. 2025 */ 2026 lpfc_sli_hba_down(phba); 2027 lpfc_sli_brdrestart(phba); 2028 2029 lpfc_stop_phba_timers(phba); 2030 spin_lock_irq(&phba->hbalock); 2031 list_del_init(&vport->listentry); 2032 spin_unlock_irq(&phba->hbalock); 2033 2034 lpfc_debugfs_terminate(vport); 2035 lpfc_cleanup(vport); 2036 2037 kthread_stop(phba->worker_thread); 2038 2039 /* Release the irq reservation */ 2040 free_irq(phba->pcidev->irq, phba); 2041 pci_disable_msi(phba->pcidev); 2042 2043 pci_set_drvdata(pdev, NULL); 2044 scsi_host_put(shost); 2045 2046 /* 2047 * Call scsi_free before mem_free since scsi bufs are released to their 2048 * corresponding pools here. 2049 */ 2050 lpfc_scsi_free(phba); 2051 lpfc_mem_free(phba); 2052 2053 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), phba->hbqslimp.virt, 2054 phba->hbqslimp.phys); 2055 2056 /* Free resources associated with SLI2 interface */ 2057 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 2058 phba->slim2p, phba->slim2p_mapping); 2059 2060 /* unmap adapter SLIM and Control Registers */ 2061 iounmap(phba->ctrl_regs_memmap_p); 2062 iounmap(phba->slim_memmap_p); 2063 2064 idr_remove(&lpfc_hba_index, phba->brd_no); 2065 2066 kfree(phba); 2067 2068 pci_release_regions(pdev); 2069 pci_disable_device(pdev); 2070 } 2071 2072 /** 2073 * lpfc_io_error_detected - called when PCI error is detected 2074 * @pdev: Pointer to PCI device 2075 * @state: The current pci conneection state 2076 * 2077 * This function is called after a PCI bus error affecting 2078 * this device has been detected. 2079 */ 2080 static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev, 2081 pci_channel_state_t state) 2082 { 2083 struct Scsi_Host *host = pci_get_drvdata(pdev); 2084 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata; 2085 struct lpfc_sli *psli = &phba->sli; 2086 struct lpfc_sli_ring *pring; 2087 2088 if (state == pci_channel_io_perm_failure) 2089 return PCI_ERS_RESULT_DISCONNECT; 2090 2091 pci_disable_device(pdev); 2092 /* 2093 * There may be I/Os dropped by the firmware. 2094 * Error iocb (I/O) on txcmplq and let the SCSI layer 2095 * retry it after re-establishing link. 2096 */ 2097 pring = &psli->ring[psli->fcp_ring]; 2098 lpfc_sli_abort_iocb_ring(phba, pring); 2099 2100 /* Request a slot reset. */ 2101 return PCI_ERS_RESULT_NEED_RESET; 2102 } 2103 2104 /** 2105 * lpfc_io_slot_reset - called after the pci bus has been reset. 2106 * @pdev: Pointer to PCI device 2107 * 2108 * Restart the card from scratch, as if from a cold-boot. 2109 */ 2110 static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev) 2111 { 2112 struct Scsi_Host *host = pci_get_drvdata(pdev); 2113 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata; 2114 struct lpfc_sli *psli = &phba->sli; 2115 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 2116 2117 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 2118 if (pci_enable_device_bars(pdev, bars)) { 2119 printk(KERN_ERR "lpfc: Cannot re-enable " 2120 "PCI device after reset.\n"); 2121 return PCI_ERS_RESULT_DISCONNECT; 2122 } 2123 2124 pci_set_master(pdev); 2125 2126 /* Re-establishing Link */ 2127 spin_lock_irq(host->host_lock); 2128 phba->pport->fc_flag |= FC_ESTABLISH_LINK; 2129 spin_unlock_irq(host->host_lock); 2130 2131 spin_lock_irq(&phba->hbalock); 2132 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 2133 spin_unlock_irq(&phba->hbalock); 2134 2135 2136 /* Take device offline; this will perform cleanup */ 2137 lpfc_offline(phba); 2138 lpfc_sli_brdrestart(phba); 2139 2140 return PCI_ERS_RESULT_RECOVERED; 2141 } 2142 2143 /** 2144 * lpfc_io_resume - called when traffic can start flowing again. 2145 * @pdev: Pointer to PCI device 2146 * 2147 * This callback is called when the error recovery driver tells us that 2148 * its OK to resume normal operation. 2149 */ 2150 static void lpfc_io_resume(struct pci_dev *pdev) 2151 { 2152 struct Scsi_Host *host = pci_get_drvdata(pdev); 2153 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata; 2154 2155 if (lpfc_online(phba) == 0) { 2156 mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60); 2157 } 2158 } 2159 2160 static struct pci_device_id lpfc_id_table[] = { 2161 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 2162 PCI_ANY_ID, PCI_ANY_ID, }, 2163 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 2164 PCI_ANY_ID, PCI_ANY_ID, }, 2165 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 2166 PCI_ANY_ID, PCI_ANY_ID, }, 2167 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 2168 PCI_ANY_ID, PCI_ANY_ID, }, 2169 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 2170 PCI_ANY_ID, PCI_ANY_ID, }, 2171 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 2172 PCI_ANY_ID, PCI_ANY_ID, }, 2173 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 2174 PCI_ANY_ID, PCI_ANY_ID, }, 2175 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 2176 PCI_ANY_ID, PCI_ANY_ID, }, 2177 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 2178 PCI_ANY_ID, PCI_ANY_ID, }, 2179 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 2180 PCI_ANY_ID, PCI_ANY_ID, }, 2181 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 2182 PCI_ANY_ID, PCI_ANY_ID, }, 2183 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 2184 PCI_ANY_ID, PCI_ANY_ID, }, 2185 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 2186 PCI_ANY_ID, PCI_ANY_ID, }, 2187 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 2188 PCI_ANY_ID, PCI_ANY_ID, }, 2189 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 2190 PCI_ANY_ID, PCI_ANY_ID, }, 2191 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 2192 PCI_ANY_ID, PCI_ANY_ID, }, 2193 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 2194 PCI_ANY_ID, PCI_ANY_ID, }, 2195 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 2196 PCI_ANY_ID, PCI_ANY_ID, }, 2197 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 2198 PCI_ANY_ID, PCI_ANY_ID, }, 2199 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 2200 PCI_ANY_ID, PCI_ANY_ID, }, 2201 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 2202 PCI_ANY_ID, PCI_ANY_ID, }, 2203 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 2204 PCI_ANY_ID, PCI_ANY_ID, }, 2205 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 2206 PCI_ANY_ID, PCI_ANY_ID, }, 2207 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 2208 PCI_ANY_ID, PCI_ANY_ID, }, 2209 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 2210 PCI_ANY_ID, PCI_ANY_ID, }, 2211 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 2212 PCI_ANY_ID, PCI_ANY_ID, }, 2213 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 2214 PCI_ANY_ID, PCI_ANY_ID, }, 2215 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 2216 PCI_ANY_ID, PCI_ANY_ID, }, 2217 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 2218 PCI_ANY_ID, PCI_ANY_ID, }, 2219 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 2220 PCI_ANY_ID, PCI_ANY_ID, }, 2221 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 2222 PCI_ANY_ID, PCI_ANY_ID, }, 2223 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 2224 PCI_ANY_ID, PCI_ANY_ID, }, 2225 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 2226 PCI_ANY_ID, PCI_ANY_ID, }, 2227 { 0 } 2228 }; 2229 2230 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 2231 2232 static struct pci_error_handlers lpfc_err_handler = { 2233 .error_detected = lpfc_io_error_detected, 2234 .slot_reset = lpfc_io_slot_reset, 2235 .resume = lpfc_io_resume, 2236 }; 2237 2238 static struct pci_driver lpfc_driver = { 2239 .name = LPFC_DRIVER_NAME, 2240 .id_table = lpfc_id_table, 2241 .probe = lpfc_pci_probe_one, 2242 .remove = __devexit_p(lpfc_pci_remove_one), 2243 .err_handler = &lpfc_err_handler, 2244 }; 2245 2246 static int __init 2247 lpfc_init(void) 2248 { 2249 int error = 0; 2250 2251 printk(LPFC_MODULE_DESC "\n"); 2252 printk(LPFC_COPYRIGHT "\n"); 2253 2254 lpfc_transport_template = 2255 fc_attach_transport(&lpfc_transport_functions); 2256 lpfc_vport_transport_template = 2257 fc_attach_transport(&lpfc_vport_transport_functions); 2258 if (!lpfc_transport_template || !lpfc_vport_transport_template) 2259 return -ENOMEM; 2260 error = pci_register_driver(&lpfc_driver); 2261 if (error) { 2262 fc_release_transport(lpfc_transport_template); 2263 fc_release_transport(lpfc_vport_transport_template); 2264 } 2265 2266 return error; 2267 } 2268 2269 static void __exit 2270 lpfc_exit(void) 2271 { 2272 pci_unregister_driver(&lpfc_driver); 2273 fc_release_transport(lpfc_transport_template); 2274 fc_release_transport(lpfc_vport_transport_template); 2275 } 2276 2277 module_init(lpfc_init); 2278 module_exit(lpfc_exit); 2279 MODULE_LICENSE("GPL"); 2280 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 2281 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 2282 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 2283