1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2008 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_nl.h" 40 #include "lpfc_disc.h" 41 #include "lpfc_scsi.h" 42 #include "lpfc.h" 43 #include "lpfc_logmsg.h" 44 #include "lpfc_crtn.h" 45 #include "lpfc_vport.h" 46 #include "lpfc_version.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 * lpfc_config_port_prep: Perform lpfc initialization prior to config port. 58 * @phba: pointer to lpfc hba data structure. 59 * 60 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 61 * mailbox command. It retrieves the revision information from the HBA and 62 * collects the Vital Product Data (VPD) about the HBA for preparing the 63 * configuration of the HBA. 64 * 65 * Return codes: 66 * 0 - success. 67 * -ERESTART - requests the SLI layer to reset the HBA and try again. 68 * Any other value - indicates an error. 69 **/ 70 int 71 lpfc_config_port_prep(struct lpfc_hba *phba) 72 { 73 lpfc_vpd_t *vp = &phba->vpd; 74 int i = 0, rc; 75 LPFC_MBOXQ_t *pmb; 76 MAILBOX_t *mb; 77 char *lpfc_vpd_data = NULL; 78 uint16_t offset = 0; 79 static char licensed[56] = 80 "key unlock for use with gnu public licensed code only\0"; 81 static int init_key = 1; 82 83 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 84 if (!pmb) { 85 phba->link_state = LPFC_HBA_ERROR; 86 return -ENOMEM; 87 } 88 89 mb = &pmb->mb; 90 phba->link_state = LPFC_INIT_MBX_CMDS; 91 92 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 93 if (init_key) { 94 uint32_t *ptext = (uint32_t *) licensed; 95 96 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 97 *ptext = cpu_to_be32(*ptext); 98 init_key = 0; 99 } 100 101 lpfc_read_nv(phba, pmb); 102 memset((char*)mb->un.varRDnvp.rsvd3, 0, 103 sizeof (mb->un.varRDnvp.rsvd3)); 104 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 105 sizeof (licensed)); 106 107 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 108 109 if (rc != MBX_SUCCESS) { 110 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 111 "0324 Config Port initialization " 112 "error, mbxCmd x%x READ_NVPARM, " 113 "mbxStatus x%x\n", 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 "0439 Adapter failed to init, mbxCmd x%x " 132 "READ_REV, mbxStatus x%x\n", 133 mb->mbxCommand, mb->mbxStatus); 134 mempool_free( pmb, phba->mbox_mem_pool); 135 return -ERESTART; 136 } 137 138 139 /* 140 * The value of rr must be 1 since the driver set the cv field to 1. 141 * This setting requires the FW to set all revision fields. 142 */ 143 if (mb->un.varRdRev.rr == 0) { 144 vp->rev.rBit = 0; 145 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 146 "0440 Adapter failed to init, READ_REV has " 147 "missing revision information.\n"); 148 mempool_free(pmb, phba->mbox_mem_pool); 149 return -ERESTART; 150 } 151 152 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 153 mempool_free(pmb, phba->mbox_mem_pool); 154 return -EINVAL; 155 } 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 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 188 if (!lpfc_vpd_data) 189 goto out_free_mbox; 190 191 do { 192 lpfc_dump_mem(phba, pmb, offset); 193 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 194 195 if (rc != MBX_SUCCESS) { 196 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 197 "0441 VPD not present on adapter, " 198 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 199 mb->mbxCommand, mb->mbxStatus); 200 mb->un.varDmp.word_cnt = 0; 201 } 202 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 203 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 204 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 205 lpfc_vpd_data + offset, 206 mb->un.varDmp.word_cnt); 207 offset += mb->un.varDmp.word_cnt; 208 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 209 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 210 211 kfree(lpfc_vpd_data); 212 out_free_mbox: 213 mempool_free(pmb, phba->mbox_mem_pool); 214 return 0; 215 } 216 217 /** 218 * lpfc_config_async_cmpl: Completion handler for config async event mbox cmd. 219 * @phba: pointer to lpfc hba data structure. 220 * @pmboxq: pointer to the driver internal queue element for mailbox command. 221 * 222 * This is the completion handler for driver's configuring asynchronous event 223 * mailbox command to the device. If the mailbox command returns successfully, 224 * it will set internal async event support flag to 1; otherwise, it will 225 * set internal async event support flag to 0. 226 **/ 227 static void 228 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 229 { 230 if (pmboxq->mb.mbxStatus == MBX_SUCCESS) 231 phba->temp_sensor_support = 1; 232 else 233 phba->temp_sensor_support = 0; 234 mempool_free(pmboxq, phba->mbox_mem_pool); 235 return; 236 } 237 238 /** 239 * lpfc_config_port_post: Perform lpfc initialization after config port. 240 * @phba: pointer to lpfc hba data structure. 241 * 242 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 243 * command call. It performs all internal resource and state setups on the 244 * port: post IOCB buffers, enable appropriate host interrupt attentions, 245 * ELS ring timers, etc. 246 * 247 * Return codes 248 * 0 - success. 249 * Any other value - error. 250 **/ 251 int 252 lpfc_config_port_post(struct lpfc_hba *phba) 253 { 254 struct lpfc_vport *vport = phba->pport; 255 LPFC_MBOXQ_t *pmb; 256 MAILBOX_t *mb; 257 struct lpfc_dmabuf *mp; 258 struct lpfc_sli *psli = &phba->sli; 259 uint32_t status, timeout; 260 int i, j; 261 int rc; 262 263 spin_lock_irq(&phba->hbalock); 264 /* 265 * If the Config port completed correctly the HBA is not 266 * over heated any more. 267 */ 268 if (phba->over_temp_state == HBA_OVER_TEMP) 269 phba->over_temp_state = HBA_NORMAL_TEMP; 270 spin_unlock_irq(&phba->hbalock); 271 272 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 273 if (!pmb) { 274 phba->link_state = LPFC_HBA_ERROR; 275 return -ENOMEM; 276 } 277 mb = &pmb->mb; 278 279 /* Get login parameters for NID. */ 280 lpfc_read_sparam(phba, pmb, 0); 281 pmb->vport = vport; 282 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 283 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 284 "0448 Adapter failed init, mbxCmd x%x " 285 "READ_SPARM mbxStatus x%x\n", 286 mb->mbxCommand, mb->mbxStatus); 287 phba->link_state = LPFC_HBA_ERROR; 288 mp = (struct lpfc_dmabuf *) pmb->context1; 289 mempool_free( pmb, phba->mbox_mem_pool); 290 lpfc_mbuf_free(phba, mp->virt, mp->phys); 291 kfree(mp); 292 return -EIO; 293 } 294 295 mp = (struct lpfc_dmabuf *) pmb->context1; 296 297 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 298 lpfc_mbuf_free(phba, mp->virt, mp->phys); 299 kfree(mp); 300 pmb->context1 = NULL; 301 302 if (phba->cfg_soft_wwnn) 303 u64_to_wwn(phba->cfg_soft_wwnn, 304 vport->fc_sparam.nodeName.u.wwn); 305 if (phba->cfg_soft_wwpn) 306 u64_to_wwn(phba->cfg_soft_wwpn, 307 vport->fc_sparam.portName.u.wwn); 308 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 309 sizeof (struct lpfc_name)); 310 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 311 sizeof (struct lpfc_name)); 312 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 313 /* This should be consolidated into parse_vpd ? - mr */ 314 if (phba->SerialNumber[0] == 0) { 315 uint8_t *outptr; 316 317 outptr = &vport->fc_nodename.u.s.IEEE[0]; 318 for (i = 0; i < 12; i++) { 319 status = *outptr++; 320 j = ((status & 0xf0) >> 4); 321 if (j <= 9) 322 phba->SerialNumber[i] = 323 (char)((uint8_t) 0x30 + (uint8_t) j); 324 else 325 phba->SerialNumber[i] = 326 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 327 i++; 328 j = (status & 0xf); 329 if (j <= 9) 330 phba->SerialNumber[i] = 331 (char)((uint8_t) 0x30 + (uint8_t) j); 332 else 333 phba->SerialNumber[i] = 334 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 335 } 336 } 337 338 lpfc_read_config(phba, pmb); 339 pmb->vport = vport; 340 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 341 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 342 "0453 Adapter failed to init, mbxCmd x%x " 343 "READ_CONFIG, mbxStatus x%x\n", 344 mb->mbxCommand, mb->mbxStatus); 345 phba->link_state = LPFC_HBA_ERROR; 346 mempool_free( pmb, phba->mbox_mem_pool); 347 return -EIO; 348 } 349 350 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 351 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 352 phba->cfg_hba_queue_depth = 353 mb->un.varRdConfig.max_xri + 1; 354 355 phba->lmt = mb->un.varRdConfig.lmt; 356 357 /* Get the default values for Model Name and Description */ 358 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 359 360 if ((phba->cfg_link_speed > LINK_SPEED_10G) 361 || ((phba->cfg_link_speed == LINK_SPEED_1G) 362 && !(phba->lmt & LMT_1Gb)) 363 || ((phba->cfg_link_speed == LINK_SPEED_2G) 364 && !(phba->lmt & LMT_2Gb)) 365 || ((phba->cfg_link_speed == LINK_SPEED_4G) 366 && !(phba->lmt & LMT_4Gb)) 367 || ((phba->cfg_link_speed == LINK_SPEED_8G) 368 && !(phba->lmt & LMT_8Gb)) 369 || ((phba->cfg_link_speed == LINK_SPEED_10G) 370 && !(phba->lmt & LMT_10Gb))) { 371 /* Reset link speed to auto */ 372 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT, 373 "1302 Invalid speed for this board: " 374 "Reset link speed to auto: x%x\n", 375 phba->cfg_link_speed); 376 phba->cfg_link_speed = LINK_SPEED_AUTO; 377 } 378 379 phba->link_state = LPFC_LINK_DOWN; 380 381 /* Only process IOCBs on ELS ring till hba_state is READY */ 382 if (psli->ring[psli->extra_ring].cmdringaddr) 383 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 384 if (psli->ring[psli->fcp_ring].cmdringaddr) 385 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 386 if (psli->ring[psli->next_ring].cmdringaddr) 387 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 388 389 /* Post receive buffers for desired rings */ 390 if (phba->sli_rev != 3) 391 lpfc_post_rcv_buf(phba); 392 393 /* 394 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 395 */ 396 if (phba->intr_type == MSIX) { 397 rc = lpfc_config_msi(phba, pmb); 398 if (rc) { 399 mempool_free(pmb, phba->mbox_mem_pool); 400 return -EIO; 401 } 402 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 403 if (rc != MBX_SUCCESS) { 404 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 405 "0352 Config MSI mailbox command " 406 "failed, mbxCmd x%x, mbxStatus x%x\n", 407 pmb->mb.mbxCommand, pmb->mb.mbxStatus); 408 mempool_free(pmb, phba->mbox_mem_pool); 409 return -EIO; 410 } 411 } 412 413 /* Initialize ERATT handling flag */ 414 phba->hba_flag &= ~HBA_ERATT_HANDLED; 415 416 /* Enable appropriate host interrupts */ 417 spin_lock_irq(&phba->hbalock); 418 status = readl(phba->HCregaddr); 419 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 420 if (psli->num_rings > 0) 421 status |= HC_R0INT_ENA; 422 if (psli->num_rings > 1) 423 status |= HC_R1INT_ENA; 424 if (psli->num_rings > 2) 425 status |= HC_R2INT_ENA; 426 if (psli->num_rings > 3) 427 status |= HC_R3INT_ENA; 428 429 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 430 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 431 status &= ~(HC_R0INT_ENA); 432 433 writel(status, phba->HCregaddr); 434 readl(phba->HCregaddr); /* flush */ 435 spin_unlock_irq(&phba->hbalock); 436 437 /* Set up ring-0 (ELS) timer */ 438 timeout = phba->fc_ratov * 2; 439 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 440 /* Set up heart beat (HB) timer */ 441 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 442 phba->hb_outstanding = 0; 443 phba->last_completion_time = jiffies; 444 /* Set up error attention (ERATT) polling timer */ 445 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 446 447 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed); 448 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 449 lpfc_set_loopback_flag(phba); 450 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 451 if (rc != MBX_SUCCESS) { 452 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 453 "0454 Adapter failed to init, mbxCmd x%x " 454 "INIT_LINK, mbxStatus x%x\n", 455 mb->mbxCommand, mb->mbxStatus); 456 457 /* Clear all interrupt enable conditions */ 458 writel(0, phba->HCregaddr); 459 readl(phba->HCregaddr); /* flush */ 460 /* Clear all pending interrupts */ 461 writel(0xffffffff, phba->HAregaddr); 462 readl(phba->HAregaddr); /* flush */ 463 464 phba->link_state = LPFC_HBA_ERROR; 465 if (rc != MBX_BUSY) 466 mempool_free(pmb, phba->mbox_mem_pool); 467 return -EIO; 468 } 469 /* MBOX buffer will be freed in mbox compl */ 470 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 471 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 472 pmb->mbox_cmpl = lpfc_config_async_cmpl; 473 pmb->vport = phba->pport; 474 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 475 476 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 477 lpfc_printf_log(phba, 478 KERN_ERR, 479 LOG_INIT, 480 "0456 Adapter failed to issue " 481 "ASYNCEVT_ENABLE mbox status x%x \n.", 482 rc); 483 mempool_free(pmb, phba->mbox_mem_pool); 484 } 485 return 0; 486 } 487 488 /** 489 * lpfc_hba_down_prep: Perform lpfc uninitialization prior to HBA reset. 490 * @phba: pointer to lpfc HBA data structure. 491 * 492 * This routine will do LPFC uninitialization before the HBA is reset when 493 * bringing down the SLI Layer. 494 * 495 * Return codes 496 * 0 - success. 497 * Any other value - error. 498 **/ 499 int 500 lpfc_hba_down_prep(struct lpfc_hba *phba) 501 { 502 struct lpfc_vport **vports; 503 int i; 504 /* Disable interrupts */ 505 writel(0, phba->HCregaddr); 506 readl(phba->HCregaddr); /* flush */ 507 508 if (phba->pport->load_flag & FC_UNLOADING) 509 lpfc_cleanup_discovery_resources(phba->pport); 510 else { 511 vports = lpfc_create_vport_work_array(phba); 512 if (vports != NULL) 513 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) 514 lpfc_cleanup_discovery_resources(vports[i]); 515 lpfc_destroy_vport_work_array(phba, vports); 516 } 517 return 0; 518 } 519 520 /** 521 * lpfc_hba_down_post: Perform lpfc uninitialization after HBA reset. 522 * @phba: pointer to lpfc HBA data structure. 523 * 524 * This routine will do uninitialization after the HBA is reset when bring 525 * down the SLI Layer. 526 * 527 * Return codes 528 * 0 - sucess. 529 * Any other value - error. 530 **/ 531 int 532 lpfc_hba_down_post(struct lpfc_hba *phba) 533 { 534 struct lpfc_sli *psli = &phba->sli; 535 struct lpfc_sli_ring *pring; 536 struct lpfc_dmabuf *mp, *next_mp; 537 struct lpfc_iocbq *iocb; 538 IOCB_t *cmd = NULL; 539 LIST_HEAD(completions); 540 int i; 541 542 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 543 lpfc_sli_hbqbuf_free_all(phba); 544 else { 545 /* Cleanup preposted buffers on the ELS ring */ 546 pring = &psli->ring[LPFC_ELS_RING]; 547 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 548 list_del(&mp->list); 549 pring->postbufq_cnt--; 550 lpfc_mbuf_free(phba, mp->virt, mp->phys); 551 kfree(mp); 552 } 553 } 554 555 spin_lock_irq(&phba->hbalock); 556 for (i = 0; i < psli->num_rings; i++) { 557 pring = &psli->ring[i]; 558 559 /* At this point in time the HBA is either reset or DOA. Either 560 * way, nothing should be on txcmplq as it will NEVER complete. 561 */ 562 list_splice_init(&pring->txcmplq, &completions); 563 pring->txcmplq_cnt = 0; 564 spin_unlock_irq(&phba->hbalock); 565 566 while (!list_empty(&completions)) { 567 iocb = list_get_first(&completions, struct lpfc_iocbq, 568 list); 569 cmd = &iocb->iocb; 570 list_del_init(&iocb->list); 571 572 if (!iocb->iocb_cmpl) 573 lpfc_sli_release_iocbq(phba, iocb); 574 else { 575 cmd->ulpStatus = IOSTAT_LOCAL_REJECT; 576 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; 577 (iocb->iocb_cmpl) (phba, iocb, iocb); 578 } 579 } 580 581 lpfc_sli_abort_iocb_ring(phba, pring); 582 spin_lock_irq(&phba->hbalock); 583 } 584 spin_unlock_irq(&phba->hbalock); 585 586 return 0; 587 } 588 589 /** 590 * lpfc_hb_timeout: The HBA-timer timeout handler. 591 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 592 * 593 * This is the HBA-timer timeout handler registered to the lpfc driver. When 594 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 595 * work-port-events bitmap and the worker thread is notified. This timeout 596 * event will be used by the worker thread to invoke the actual timeout 597 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 598 * be performed in the timeout handler and the HBA timeout event bit shall 599 * be cleared by the worker thread after it has taken the event bitmap out. 600 **/ 601 static void 602 lpfc_hb_timeout(unsigned long ptr) 603 { 604 struct lpfc_hba *phba; 605 uint32_t tmo_posted; 606 unsigned long iflag; 607 608 phba = (struct lpfc_hba *)ptr; 609 610 /* Check for heart beat timeout conditions */ 611 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 612 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 613 if (!tmo_posted) 614 phba->pport->work_port_events |= WORKER_HB_TMO; 615 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 616 617 /* Tell the worker thread there is work to do */ 618 if (!tmo_posted) 619 lpfc_worker_wake_up(phba); 620 return; 621 } 622 623 /** 624 * lpfc_hb_mbox_cmpl: The lpfc heart-beat mailbox command callback function. 625 * @phba: pointer to lpfc hba data structure. 626 * @pmboxq: pointer to the driver internal queue element for mailbox command. 627 * 628 * This is the callback function to the lpfc heart-beat mailbox command. 629 * If configured, the lpfc driver issues the heart-beat mailbox command to 630 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 631 * heart-beat mailbox command is issued, the driver shall set up heart-beat 632 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 633 * heart-beat outstanding state. Once the mailbox command comes back and 634 * no error conditions detected, the heart-beat mailbox command timer is 635 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 636 * state is cleared for the next heart-beat. If the timer expired with the 637 * heart-beat outstanding state set, the driver will put the HBA offline. 638 **/ 639 static void 640 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 641 { 642 unsigned long drvr_flag; 643 644 spin_lock_irqsave(&phba->hbalock, drvr_flag); 645 phba->hb_outstanding = 0; 646 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 647 648 /* Check and reset heart-beat timer is necessary */ 649 mempool_free(pmboxq, phba->mbox_mem_pool); 650 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 651 !(phba->link_state == LPFC_HBA_ERROR) && 652 !(phba->pport->load_flag & FC_UNLOADING)) 653 mod_timer(&phba->hb_tmofunc, 654 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 655 return; 656 } 657 658 /** 659 * lpfc_hb_timeout_handler: The HBA-timer timeout handler. 660 * @phba: pointer to lpfc hba data structure. 661 * 662 * This is the actual HBA-timer timeout handler to be invoked by the worker 663 * thread whenever the HBA timer fired and HBA-timeout event posted. This 664 * handler performs any periodic operations needed for the device. If such 665 * periodic event has already been attended to either in the interrupt handler 666 * or by processing slow-ring or fast-ring events within the HBA-timer 667 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 668 * the timer for the next timeout period. If lpfc heart-beat mailbox command 669 * is configured and there is no heart-beat mailbox command outstanding, a 670 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 671 * has been a heart-beat mailbox command outstanding, the HBA shall be put 672 * to offline. 673 **/ 674 void 675 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 676 { 677 LPFC_MBOXQ_t *pmboxq; 678 struct lpfc_dmabuf *buf_ptr; 679 int retval; 680 struct lpfc_sli *psli = &phba->sli; 681 LIST_HEAD(completions); 682 683 if ((phba->link_state == LPFC_HBA_ERROR) || 684 (phba->pport->load_flag & FC_UNLOADING) || 685 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 686 return; 687 688 spin_lock_irq(&phba->pport->work_port_lock); 689 /* If the timer is already canceled do nothing */ 690 if (!(phba->pport->work_port_events & WORKER_HB_TMO)) { 691 spin_unlock_irq(&phba->pport->work_port_lock); 692 return; 693 } 694 695 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 696 jiffies)) { 697 spin_unlock_irq(&phba->pport->work_port_lock); 698 if (!phba->hb_outstanding) 699 mod_timer(&phba->hb_tmofunc, 700 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 701 else 702 mod_timer(&phba->hb_tmofunc, 703 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 704 return; 705 } 706 spin_unlock_irq(&phba->pport->work_port_lock); 707 708 if (phba->elsbuf_cnt && 709 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 710 spin_lock_irq(&phba->hbalock); 711 list_splice_init(&phba->elsbuf, &completions); 712 phba->elsbuf_cnt = 0; 713 phba->elsbuf_prev_cnt = 0; 714 spin_unlock_irq(&phba->hbalock); 715 716 while (!list_empty(&completions)) { 717 list_remove_head(&completions, buf_ptr, 718 struct lpfc_dmabuf, list); 719 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 720 kfree(buf_ptr); 721 } 722 } 723 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 724 725 /* If there is no heart beat outstanding, issue a heartbeat command */ 726 if (phba->cfg_enable_hba_heartbeat) { 727 if (!phba->hb_outstanding) { 728 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 729 if (!pmboxq) { 730 mod_timer(&phba->hb_tmofunc, 731 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 732 return; 733 } 734 735 lpfc_heart_beat(phba, pmboxq); 736 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 737 pmboxq->vport = phba->pport; 738 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); 739 740 if (retval != MBX_BUSY && retval != MBX_SUCCESS) { 741 mempool_free(pmboxq, phba->mbox_mem_pool); 742 mod_timer(&phba->hb_tmofunc, 743 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 744 return; 745 } 746 mod_timer(&phba->hb_tmofunc, 747 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 748 phba->hb_outstanding = 1; 749 return; 750 } else { 751 /* 752 * If heart beat timeout called with hb_outstanding set 753 * we need to take the HBA offline. 754 */ 755 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 756 "0459 Adapter heartbeat failure, " 757 "taking this port offline.\n"); 758 759 spin_lock_irq(&phba->hbalock); 760 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 761 spin_unlock_irq(&phba->hbalock); 762 763 lpfc_offline_prep(phba); 764 lpfc_offline(phba); 765 lpfc_unblock_mgmt_io(phba); 766 phba->link_state = LPFC_HBA_ERROR; 767 lpfc_hba_down_post(phba); 768 } 769 } 770 } 771 772 /** 773 * lpfc_offline_eratt: Bring lpfc offline on hardware error attention. 774 * @phba: pointer to lpfc hba data structure. 775 * 776 * This routine is called to bring the HBA offline when HBA hardware error 777 * other than Port Error 6 has been detected. 778 **/ 779 static void 780 lpfc_offline_eratt(struct lpfc_hba *phba) 781 { 782 struct lpfc_sli *psli = &phba->sli; 783 784 spin_lock_irq(&phba->hbalock); 785 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 786 spin_unlock_irq(&phba->hbalock); 787 lpfc_offline_prep(phba); 788 789 lpfc_offline(phba); 790 lpfc_reset_barrier(phba); 791 lpfc_sli_brdreset(phba); 792 lpfc_hba_down_post(phba); 793 lpfc_sli_brdready(phba, HS_MBRDY); 794 lpfc_unblock_mgmt_io(phba); 795 phba->link_state = LPFC_HBA_ERROR; 796 return; 797 } 798 799 /** 800 * lpfc_handle_eratt: The HBA hardware error handler. 801 * @phba: pointer to lpfc hba data structure. 802 * 803 * This routine is invoked to handle the following HBA hardware error 804 * conditions: 805 * 1 - HBA error attention interrupt 806 * 2 - DMA ring index out of range 807 * 3 - Mailbox command came back as unknown 808 **/ 809 void 810 lpfc_handle_eratt(struct lpfc_hba *phba) 811 { 812 struct lpfc_vport *vport = phba->pport; 813 struct lpfc_sli *psli = &phba->sli; 814 struct lpfc_sli_ring *pring; 815 uint32_t event_data; 816 unsigned long temperature; 817 struct temp_event temp_event_data; 818 struct Scsi_Host *shost; 819 struct lpfc_board_event_header board_event; 820 821 /* If the pci channel is offline, ignore possible errors, 822 * since we cannot communicate with the pci card anyway. */ 823 if (pci_channel_offline(phba->pcidev)) 824 return; 825 /* If resets are disabled then leave the HBA alone and return */ 826 if (!phba->cfg_enable_hba_reset) 827 return; 828 829 /* Send an internal error event to mgmt application */ 830 board_event.event_type = FC_REG_BOARD_EVENT; 831 board_event.subcategory = LPFC_EVENT_PORTINTERR; 832 shost = lpfc_shost_from_vport(phba->pport); 833 fc_host_post_vendor_event(shost, fc_get_event_number(), 834 sizeof(board_event), 835 (char *) &board_event, 836 SCSI_NL_VID_TYPE_PCI 837 | PCI_VENDOR_ID_EMULEX); 838 839 if (phba->work_hs & HS_FFER6) { 840 /* Re-establishing Link */ 841 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 842 "1301 Re-establishing Link " 843 "Data: x%x x%x x%x\n", 844 phba->work_hs, 845 phba->work_status[0], phba->work_status[1]); 846 847 spin_lock_irq(&phba->hbalock); 848 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 849 spin_unlock_irq(&phba->hbalock); 850 851 /* 852 * Firmware stops when it triggled erratt with HS_FFER6. 853 * That could cause the I/Os dropped by the firmware. 854 * Error iocb (I/O) on txcmplq and let the SCSI layer 855 * retry it after re-establishing link. 856 */ 857 pring = &psli->ring[psli->fcp_ring]; 858 lpfc_sli_abort_iocb_ring(phba, pring); 859 860 /* 861 * There was a firmware error. Take the hba offline and then 862 * attempt to restart it. 863 */ 864 lpfc_offline_prep(phba); 865 lpfc_offline(phba); 866 lpfc_sli_brdrestart(phba); 867 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 868 lpfc_unblock_mgmt_io(phba); 869 return; 870 } 871 lpfc_unblock_mgmt_io(phba); 872 } else if (phba->work_hs & HS_CRIT_TEMP) { 873 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 874 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 875 temp_event_data.event_code = LPFC_CRIT_TEMP; 876 temp_event_data.data = (uint32_t)temperature; 877 878 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 879 "0406 Adapter maximum temperature exceeded " 880 "(%ld), taking this port offline " 881 "Data: x%x x%x x%x\n", 882 temperature, phba->work_hs, 883 phba->work_status[0], phba->work_status[1]); 884 885 shost = lpfc_shost_from_vport(phba->pport); 886 fc_host_post_vendor_event(shost, fc_get_event_number(), 887 sizeof(temp_event_data), 888 (char *) &temp_event_data, 889 SCSI_NL_VID_TYPE_PCI 890 | PCI_VENDOR_ID_EMULEX); 891 892 spin_lock_irq(&phba->hbalock); 893 phba->over_temp_state = HBA_OVER_TEMP; 894 spin_unlock_irq(&phba->hbalock); 895 lpfc_offline_eratt(phba); 896 897 } else { 898 /* The if clause above forces this code path when the status 899 * failure is a value other than FFER6. Do not call the offline 900 * twice. This is the adapter hardware error path. 901 */ 902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 903 "0457 Adapter Hardware Error " 904 "Data: x%x x%x x%x\n", 905 phba->work_hs, 906 phba->work_status[0], phba->work_status[1]); 907 908 event_data = FC_REG_DUMP_EVENT; 909 shost = lpfc_shost_from_vport(vport); 910 fc_host_post_vendor_event(shost, fc_get_event_number(), 911 sizeof(event_data), (char *) &event_data, 912 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 913 914 lpfc_offline_eratt(phba); 915 } 916 return; 917 } 918 919 /** 920 * lpfc_handle_latt: The HBA link event handler. 921 * @phba: pointer to lpfc hba data structure. 922 * 923 * This routine is invoked from the worker thread to handle a HBA host 924 * attention link event. 925 **/ 926 void 927 lpfc_handle_latt(struct lpfc_hba *phba) 928 { 929 struct lpfc_vport *vport = phba->pport; 930 struct lpfc_sli *psli = &phba->sli; 931 LPFC_MBOXQ_t *pmb; 932 volatile uint32_t control; 933 struct lpfc_dmabuf *mp; 934 int rc = 0; 935 936 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 937 if (!pmb) { 938 rc = 1; 939 goto lpfc_handle_latt_err_exit; 940 } 941 942 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 943 if (!mp) { 944 rc = 2; 945 goto lpfc_handle_latt_free_pmb; 946 } 947 948 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 949 if (!mp->virt) { 950 rc = 3; 951 goto lpfc_handle_latt_free_mp; 952 } 953 954 /* Cleanup any outstanding ELS commands */ 955 lpfc_els_flush_all_cmd(phba); 956 957 psli->slistat.link_event++; 958 lpfc_read_la(phba, pmb, mp); 959 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 960 pmb->vport = vport; 961 /* Block ELS IOCBs until we have processed this mbox command */ 962 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 963 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 964 if (rc == MBX_NOT_FINISHED) { 965 rc = 4; 966 goto lpfc_handle_latt_free_mbuf; 967 } 968 969 /* Clear Link Attention in HA REG */ 970 spin_lock_irq(&phba->hbalock); 971 writel(HA_LATT, phba->HAregaddr); 972 readl(phba->HAregaddr); /* flush */ 973 spin_unlock_irq(&phba->hbalock); 974 975 return; 976 977 lpfc_handle_latt_free_mbuf: 978 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 979 lpfc_mbuf_free(phba, mp->virt, mp->phys); 980 lpfc_handle_latt_free_mp: 981 kfree(mp); 982 lpfc_handle_latt_free_pmb: 983 mempool_free(pmb, phba->mbox_mem_pool); 984 lpfc_handle_latt_err_exit: 985 /* Enable Link attention interrupts */ 986 spin_lock_irq(&phba->hbalock); 987 psli->sli_flag |= LPFC_PROCESS_LA; 988 control = readl(phba->HCregaddr); 989 control |= HC_LAINT_ENA; 990 writel(control, phba->HCregaddr); 991 readl(phba->HCregaddr); /* flush */ 992 993 /* Clear Link Attention in HA REG */ 994 writel(HA_LATT, phba->HAregaddr); 995 readl(phba->HAregaddr); /* flush */ 996 spin_unlock_irq(&phba->hbalock); 997 lpfc_linkdown(phba); 998 phba->link_state = LPFC_HBA_ERROR; 999 1000 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1001 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1002 1003 return; 1004 } 1005 1006 /** 1007 * lpfc_parse_vpd: Parse VPD (Vital Product Data). 1008 * @phba: pointer to lpfc hba data structure. 1009 * @vpd: pointer to the vital product data. 1010 * @len: length of the vital product data in bytes. 1011 * 1012 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1013 * an array of characters. In this routine, the ModelName, ProgramType, and 1014 * ModelDesc, etc. fields of the phba data structure will be populated. 1015 * 1016 * Return codes 1017 * 0 - pointer to the VPD passed in is NULL 1018 * 1 - success 1019 **/ 1020 static int 1021 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1022 { 1023 uint8_t lenlo, lenhi; 1024 int Length; 1025 int i, j; 1026 int finished = 0; 1027 int index = 0; 1028 1029 if (!vpd) 1030 return 0; 1031 1032 /* Vital Product */ 1033 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1034 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1035 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1036 (uint32_t) vpd[3]); 1037 while (!finished && (index < (len - 4))) { 1038 switch (vpd[index]) { 1039 case 0x82: 1040 case 0x91: 1041 index += 1; 1042 lenlo = vpd[index]; 1043 index += 1; 1044 lenhi = vpd[index]; 1045 index += 1; 1046 i = ((((unsigned short)lenhi) << 8) + lenlo); 1047 index += i; 1048 break; 1049 case 0x90: 1050 index += 1; 1051 lenlo = vpd[index]; 1052 index += 1; 1053 lenhi = vpd[index]; 1054 index += 1; 1055 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1056 if (Length > len - index) 1057 Length = len - index; 1058 while (Length > 0) { 1059 /* Look for Serial Number */ 1060 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1061 index += 2; 1062 i = vpd[index]; 1063 index += 1; 1064 j = 0; 1065 Length -= (3+i); 1066 while(i--) { 1067 phba->SerialNumber[j++] = vpd[index++]; 1068 if (j == 31) 1069 break; 1070 } 1071 phba->SerialNumber[j] = 0; 1072 continue; 1073 } 1074 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1075 phba->vpd_flag |= VPD_MODEL_DESC; 1076 index += 2; 1077 i = vpd[index]; 1078 index += 1; 1079 j = 0; 1080 Length -= (3+i); 1081 while(i--) { 1082 phba->ModelDesc[j++] = vpd[index++]; 1083 if (j == 255) 1084 break; 1085 } 1086 phba->ModelDesc[j] = 0; 1087 continue; 1088 } 1089 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1090 phba->vpd_flag |= VPD_MODEL_NAME; 1091 index += 2; 1092 i = vpd[index]; 1093 index += 1; 1094 j = 0; 1095 Length -= (3+i); 1096 while(i--) { 1097 phba->ModelName[j++] = vpd[index++]; 1098 if (j == 79) 1099 break; 1100 } 1101 phba->ModelName[j] = 0; 1102 continue; 1103 } 1104 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1105 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1106 index += 2; 1107 i = vpd[index]; 1108 index += 1; 1109 j = 0; 1110 Length -= (3+i); 1111 while(i--) { 1112 phba->ProgramType[j++] = vpd[index++]; 1113 if (j == 255) 1114 break; 1115 } 1116 phba->ProgramType[j] = 0; 1117 continue; 1118 } 1119 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1120 phba->vpd_flag |= VPD_PORT; 1121 index += 2; 1122 i = vpd[index]; 1123 index += 1; 1124 j = 0; 1125 Length -= (3+i); 1126 while(i--) { 1127 phba->Port[j++] = vpd[index++]; 1128 if (j == 19) 1129 break; 1130 } 1131 phba->Port[j] = 0; 1132 continue; 1133 } 1134 else { 1135 index += 2; 1136 i = vpd[index]; 1137 index += 1; 1138 index += i; 1139 Length -= (3 + i); 1140 } 1141 } 1142 finished = 0; 1143 break; 1144 case 0x78: 1145 finished = 1; 1146 break; 1147 default: 1148 index ++; 1149 break; 1150 } 1151 } 1152 1153 return(1); 1154 } 1155 1156 /** 1157 * lpfc_get_hba_model_desc: Retrieve HBA device model name and description. 1158 * @phba: pointer to lpfc hba data structure. 1159 * @mdp: pointer to the data structure to hold the derived model name. 1160 * @descp: pointer to the data structure to hold the derived description. 1161 * 1162 * This routine retrieves HBA's description based on its registered PCI device 1163 * ID. The @descp passed into this function points to an array of 256 chars. It 1164 * shall be returned with the model name, maximum speed, and the host bus type. 1165 * The @mdp passed into this function points to an array of 80 chars. When the 1166 * function returns, the @mdp will be filled with the model name. 1167 **/ 1168 static void 1169 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1170 { 1171 lpfc_vpd_t *vp; 1172 uint16_t dev_id = phba->pcidev->device; 1173 int max_speed; 1174 int GE = 0; 1175 struct { 1176 char * name; 1177 int max_speed; 1178 char * bus; 1179 } m = {"<Unknown>", 0, ""}; 1180 1181 if (mdp && mdp[0] != '\0' 1182 && descp && descp[0] != '\0') 1183 return; 1184 1185 if (phba->lmt & LMT_10Gb) 1186 max_speed = 10; 1187 else if (phba->lmt & LMT_8Gb) 1188 max_speed = 8; 1189 else if (phba->lmt & LMT_4Gb) 1190 max_speed = 4; 1191 else if (phba->lmt & LMT_2Gb) 1192 max_speed = 2; 1193 else 1194 max_speed = 1; 1195 1196 vp = &phba->vpd; 1197 1198 switch (dev_id) { 1199 case PCI_DEVICE_ID_FIREFLY: 1200 m = (typeof(m)){"LP6000", max_speed, "PCI"}; 1201 break; 1202 case PCI_DEVICE_ID_SUPERFLY: 1203 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1204 m = (typeof(m)){"LP7000", max_speed, "PCI"}; 1205 else 1206 m = (typeof(m)){"LP7000E", max_speed, "PCI"}; 1207 break; 1208 case PCI_DEVICE_ID_DRAGONFLY: 1209 m = (typeof(m)){"LP8000", max_speed, "PCI"}; 1210 break; 1211 case PCI_DEVICE_ID_CENTAUR: 1212 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1213 m = (typeof(m)){"LP9002", max_speed, "PCI"}; 1214 else 1215 m = (typeof(m)){"LP9000", max_speed, "PCI"}; 1216 break; 1217 case PCI_DEVICE_ID_RFLY: 1218 m = (typeof(m)){"LP952", max_speed, "PCI"}; 1219 break; 1220 case PCI_DEVICE_ID_PEGASUS: 1221 m = (typeof(m)){"LP9802", max_speed, "PCI-X"}; 1222 break; 1223 case PCI_DEVICE_ID_THOR: 1224 m = (typeof(m)){"LP10000", max_speed, "PCI-X"}; 1225 break; 1226 case PCI_DEVICE_ID_VIPER: 1227 m = (typeof(m)){"LPX1000", max_speed, "PCI-X"}; 1228 break; 1229 case PCI_DEVICE_ID_PFLY: 1230 m = (typeof(m)){"LP982", max_speed, "PCI-X"}; 1231 break; 1232 case PCI_DEVICE_ID_TFLY: 1233 m = (typeof(m)){"LP1050", max_speed, "PCI-X"}; 1234 break; 1235 case PCI_DEVICE_ID_HELIOS: 1236 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"}; 1237 break; 1238 case PCI_DEVICE_ID_HELIOS_SCSP: 1239 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"}; 1240 break; 1241 case PCI_DEVICE_ID_HELIOS_DCSP: 1242 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"}; 1243 break; 1244 case PCI_DEVICE_ID_NEPTUNE: 1245 m = (typeof(m)){"LPe1000", max_speed, "PCIe"}; 1246 break; 1247 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1248 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"}; 1249 break; 1250 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1251 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"}; 1252 break; 1253 case PCI_DEVICE_ID_BMID: 1254 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"}; 1255 break; 1256 case PCI_DEVICE_ID_BSMB: 1257 m = (typeof(m)){"LP111", max_speed, "PCI-X2"}; 1258 break; 1259 case PCI_DEVICE_ID_ZEPHYR: 1260 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1261 break; 1262 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1263 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1264 break; 1265 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1266 m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"}; 1267 break; 1268 case PCI_DEVICE_ID_ZMID: 1269 m = (typeof(m)){"LPe1150", max_speed, "PCIe"}; 1270 break; 1271 case PCI_DEVICE_ID_ZSMB: 1272 m = (typeof(m)){"LPe111", max_speed, "PCIe"}; 1273 break; 1274 case PCI_DEVICE_ID_LP101: 1275 m = (typeof(m)){"LP101", max_speed, "PCI-X"}; 1276 break; 1277 case PCI_DEVICE_ID_LP10000S: 1278 m = (typeof(m)){"LP10000-S", max_speed, "PCI"}; 1279 break; 1280 case PCI_DEVICE_ID_LP11000S: 1281 m = (typeof(m)){"LP11000-S", max_speed, 1282 "PCI-X2"}; 1283 break; 1284 case PCI_DEVICE_ID_LPE11000S: 1285 m = (typeof(m)){"LPe11000-S", max_speed, 1286 "PCIe"}; 1287 break; 1288 case PCI_DEVICE_ID_SAT: 1289 m = (typeof(m)){"LPe12000", max_speed, "PCIe"}; 1290 break; 1291 case PCI_DEVICE_ID_SAT_MID: 1292 m = (typeof(m)){"LPe1250", max_speed, "PCIe"}; 1293 break; 1294 case PCI_DEVICE_ID_SAT_SMB: 1295 m = (typeof(m)){"LPe121", max_speed, "PCIe"}; 1296 break; 1297 case PCI_DEVICE_ID_SAT_DCSP: 1298 m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"}; 1299 break; 1300 case PCI_DEVICE_ID_SAT_SCSP: 1301 m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"}; 1302 break; 1303 case PCI_DEVICE_ID_SAT_S: 1304 m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"}; 1305 break; 1306 case PCI_DEVICE_ID_HORNET: 1307 m = (typeof(m)){"LP21000", max_speed, "PCIe"}; 1308 GE = 1; 1309 break; 1310 case PCI_DEVICE_ID_PROTEUS_VF: 1311 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"}; 1312 break; 1313 case PCI_DEVICE_ID_PROTEUS_PF: 1314 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"}; 1315 break; 1316 case PCI_DEVICE_ID_PROTEUS_S: 1317 m = (typeof(m)) {"LPemv12002-S", max_speed, "PCIe IOV"}; 1318 break; 1319 default: 1320 m = (typeof(m)){ NULL }; 1321 break; 1322 } 1323 1324 if (mdp && mdp[0] == '\0') 1325 snprintf(mdp, 79,"%s", m.name); 1326 if (descp && descp[0] == '\0') 1327 snprintf(descp, 255, 1328 "Emulex %s %d%s %s %s", 1329 m.name, m.max_speed, 1330 (GE) ? "GE" : "Gb", 1331 m.bus, 1332 (GE) ? "FCoE Adapter" : "Fibre Channel Adapter"); 1333 } 1334 1335 /** 1336 * lpfc_post_buffer: Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring. 1337 * @phba: pointer to lpfc hba data structure. 1338 * @pring: pointer to a IOCB ring. 1339 * @cnt: the number of IOCBs to be posted to the IOCB ring. 1340 * 1341 * This routine posts a given number of IOCBs with the associated DMA buffer 1342 * descriptors specified by the cnt argument to the given IOCB ring. 1343 * 1344 * Return codes 1345 * The number of IOCBs NOT able to be posted to the IOCB ring. 1346 **/ 1347 int 1348 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 1349 { 1350 IOCB_t *icmd; 1351 struct lpfc_iocbq *iocb; 1352 struct lpfc_dmabuf *mp1, *mp2; 1353 1354 cnt += pring->missbufcnt; 1355 1356 /* While there are buffers to post */ 1357 while (cnt > 0) { 1358 /* Allocate buffer for command iocb */ 1359 iocb = lpfc_sli_get_iocbq(phba); 1360 if (iocb == NULL) { 1361 pring->missbufcnt = cnt; 1362 return cnt; 1363 } 1364 icmd = &iocb->iocb; 1365 1366 /* 2 buffers can be posted per command */ 1367 /* Allocate buffer to post */ 1368 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1369 if (mp1) 1370 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 1371 if (!mp1 || !mp1->virt) { 1372 kfree(mp1); 1373 lpfc_sli_release_iocbq(phba, iocb); 1374 pring->missbufcnt = cnt; 1375 return cnt; 1376 } 1377 1378 INIT_LIST_HEAD(&mp1->list); 1379 /* Allocate buffer to post */ 1380 if (cnt > 1) { 1381 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1382 if (mp2) 1383 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1384 &mp2->phys); 1385 if (!mp2 || !mp2->virt) { 1386 kfree(mp2); 1387 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1388 kfree(mp1); 1389 lpfc_sli_release_iocbq(phba, iocb); 1390 pring->missbufcnt = cnt; 1391 return cnt; 1392 } 1393 1394 INIT_LIST_HEAD(&mp2->list); 1395 } else { 1396 mp2 = NULL; 1397 } 1398 1399 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1400 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1401 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1402 icmd->ulpBdeCount = 1; 1403 cnt--; 1404 if (mp2) { 1405 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1406 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1407 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1408 cnt--; 1409 icmd->ulpBdeCount = 2; 1410 } 1411 1412 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1413 icmd->ulpLe = 1; 1414 1415 if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) { 1416 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1417 kfree(mp1); 1418 cnt++; 1419 if (mp2) { 1420 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1421 kfree(mp2); 1422 cnt++; 1423 } 1424 lpfc_sli_release_iocbq(phba, iocb); 1425 pring->missbufcnt = cnt; 1426 return cnt; 1427 } 1428 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1429 if (mp2) 1430 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1431 } 1432 pring->missbufcnt = 0; 1433 return 0; 1434 } 1435 1436 /** 1437 * lpfc_post_rcv_buf: Post the initial receive IOCB buffers to ELS ring. 1438 * @phba: pointer to lpfc hba data structure. 1439 * 1440 * This routine posts initial receive IOCB buffers to the ELS ring. The 1441 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 1442 * set to 64 IOCBs. 1443 * 1444 * Return codes 1445 * 0 - success (currently always success) 1446 **/ 1447 static int 1448 lpfc_post_rcv_buf(struct lpfc_hba *phba) 1449 { 1450 struct lpfc_sli *psli = &phba->sli; 1451 1452 /* Ring 0, ELS / CT buffers */ 1453 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 1454 /* Ring 2 - FCP no buffers needed */ 1455 1456 return 0; 1457 } 1458 1459 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 1460 1461 /** 1462 * lpfc_sha_init: Set up initial array of hash table entries. 1463 * @HashResultPointer: pointer to an array as hash table. 1464 * 1465 * This routine sets up the initial values to the array of hash table entries 1466 * for the LC HBAs. 1467 **/ 1468 static void 1469 lpfc_sha_init(uint32_t * HashResultPointer) 1470 { 1471 HashResultPointer[0] = 0x67452301; 1472 HashResultPointer[1] = 0xEFCDAB89; 1473 HashResultPointer[2] = 0x98BADCFE; 1474 HashResultPointer[3] = 0x10325476; 1475 HashResultPointer[4] = 0xC3D2E1F0; 1476 } 1477 1478 /** 1479 * lpfc_sha_iterate: Iterate initial hash table with the working hash table. 1480 * @HashResultPointer: pointer to an initial/result hash table. 1481 * @HashWorkingPointer: pointer to an working hash table. 1482 * 1483 * This routine iterates an initial hash table pointed by @HashResultPointer 1484 * with the values from the working hash table pointeed by @HashWorkingPointer. 1485 * The results are putting back to the initial hash table, returned through 1486 * the @HashResultPointer as the result hash table. 1487 **/ 1488 static void 1489 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 1490 { 1491 int t; 1492 uint32_t TEMP; 1493 uint32_t A, B, C, D, E; 1494 t = 16; 1495 do { 1496 HashWorkingPointer[t] = 1497 S(1, 1498 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 1499 8] ^ 1500 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 1501 } while (++t <= 79); 1502 t = 0; 1503 A = HashResultPointer[0]; 1504 B = HashResultPointer[1]; 1505 C = HashResultPointer[2]; 1506 D = HashResultPointer[3]; 1507 E = HashResultPointer[4]; 1508 1509 do { 1510 if (t < 20) { 1511 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 1512 } else if (t < 40) { 1513 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 1514 } else if (t < 60) { 1515 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 1516 } else { 1517 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 1518 } 1519 TEMP += S(5, A) + E + HashWorkingPointer[t]; 1520 E = D; 1521 D = C; 1522 C = S(30, B); 1523 B = A; 1524 A = TEMP; 1525 } while (++t <= 79); 1526 1527 HashResultPointer[0] += A; 1528 HashResultPointer[1] += B; 1529 HashResultPointer[2] += C; 1530 HashResultPointer[3] += D; 1531 HashResultPointer[4] += E; 1532 1533 } 1534 1535 /** 1536 * lpfc_challenge_key: Create challenge key based on WWPN of the HBA. 1537 * @RandomChallenge: pointer to the entry of host challenge random number array. 1538 * @HashWorking: pointer to the entry of the working hash array. 1539 * 1540 * This routine calculates the working hash array referred by @HashWorking 1541 * from the challenge random numbers associated with the host, referred by 1542 * @RandomChallenge. The result is put into the entry of the working hash 1543 * array and returned by reference through @HashWorking. 1544 **/ 1545 static void 1546 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 1547 { 1548 *HashWorking = (*RandomChallenge ^ *HashWorking); 1549 } 1550 1551 /** 1552 * lpfc_hba_init: Perform special handling for LC HBA initialization. 1553 * @phba: pointer to lpfc hba data structure. 1554 * @hbainit: pointer to an array of unsigned 32-bit integers. 1555 * 1556 * This routine performs the special handling for LC HBA initialization. 1557 **/ 1558 void 1559 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 1560 { 1561 int t; 1562 uint32_t *HashWorking; 1563 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 1564 1565 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 1566 if (!HashWorking) 1567 return; 1568 1569 HashWorking[0] = HashWorking[78] = *pwwnn++; 1570 HashWorking[1] = HashWorking[79] = *pwwnn; 1571 1572 for (t = 0; t < 7; t++) 1573 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 1574 1575 lpfc_sha_init(hbainit); 1576 lpfc_sha_iterate(hbainit, HashWorking); 1577 kfree(HashWorking); 1578 } 1579 1580 /** 1581 * lpfc_cleanup: Performs vport cleanups before deleting a vport. 1582 * @vport: pointer to a virtual N_Port data structure. 1583 * 1584 * This routine performs the necessary cleanups before deleting the @vport. 1585 * It invokes the discovery state machine to perform necessary state 1586 * transitions and to release the ndlps associated with the @vport. Note, 1587 * the physical port is treated as @vport 0. 1588 **/ 1589 void 1590 lpfc_cleanup(struct lpfc_vport *vport) 1591 { 1592 struct lpfc_hba *phba = vport->phba; 1593 struct lpfc_nodelist *ndlp, *next_ndlp; 1594 int i = 0; 1595 1596 if (phba->link_state > LPFC_LINK_DOWN) 1597 lpfc_port_link_failure(vport); 1598 1599 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 1600 if (!NLP_CHK_NODE_ACT(ndlp)) { 1601 ndlp = lpfc_enable_node(vport, ndlp, 1602 NLP_STE_UNUSED_NODE); 1603 if (!ndlp) 1604 continue; 1605 spin_lock_irq(&phba->ndlp_lock); 1606 NLP_SET_FREE_REQ(ndlp); 1607 spin_unlock_irq(&phba->ndlp_lock); 1608 /* Trigger the release of the ndlp memory */ 1609 lpfc_nlp_put(ndlp); 1610 continue; 1611 } 1612 spin_lock_irq(&phba->ndlp_lock); 1613 if (NLP_CHK_FREE_REQ(ndlp)) { 1614 /* The ndlp should not be in memory free mode already */ 1615 spin_unlock_irq(&phba->ndlp_lock); 1616 continue; 1617 } else 1618 /* Indicate request for freeing ndlp memory */ 1619 NLP_SET_FREE_REQ(ndlp); 1620 spin_unlock_irq(&phba->ndlp_lock); 1621 1622 if (vport->port_type != LPFC_PHYSICAL_PORT && 1623 ndlp->nlp_DID == Fabric_DID) { 1624 /* Just free up ndlp with Fabric_DID for vports */ 1625 lpfc_nlp_put(ndlp); 1626 continue; 1627 } 1628 1629 if (ndlp->nlp_type & NLP_FABRIC) 1630 lpfc_disc_state_machine(vport, ndlp, NULL, 1631 NLP_EVT_DEVICE_RECOVERY); 1632 1633 lpfc_disc_state_machine(vport, ndlp, NULL, 1634 NLP_EVT_DEVICE_RM); 1635 1636 } 1637 1638 /* At this point, ALL ndlp's should be gone 1639 * because of the previous NLP_EVT_DEVICE_RM. 1640 * Lets wait for this to happen, if needed. 1641 */ 1642 while (!list_empty(&vport->fc_nodes)) { 1643 1644 if (i++ > 3000) { 1645 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1646 "0233 Nodelist not empty\n"); 1647 list_for_each_entry_safe(ndlp, next_ndlp, 1648 &vport->fc_nodes, nlp_listp) { 1649 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 1650 LOG_NODE, 1651 "0282 did:x%x ndlp:x%p " 1652 "usgmap:x%x refcnt:%d\n", 1653 ndlp->nlp_DID, (void *)ndlp, 1654 ndlp->nlp_usg_map, 1655 atomic_read( 1656 &ndlp->kref.refcount)); 1657 } 1658 break; 1659 } 1660 1661 /* Wait for any activity on ndlps to settle */ 1662 msleep(10); 1663 } 1664 return; 1665 } 1666 1667 /** 1668 * lpfc_stop_vport_timers: Stop all the timers associated with a vport. 1669 * @vport: pointer to a virtual N_Port data structure. 1670 * 1671 * This routine stops all the timers associated with a @vport. This function 1672 * is invoked before disabling or deleting a @vport. Note that the physical 1673 * port is treated as @vport 0. 1674 **/ 1675 void 1676 lpfc_stop_vport_timers(struct lpfc_vport *vport) 1677 { 1678 del_timer_sync(&vport->els_tmofunc); 1679 del_timer_sync(&vport->fc_fdmitmo); 1680 lpfc_can_disctmo(vport); 1681 return; 1682 } 1683 1684 /** 1685 * lpfc_stop_phba_timers: Stop all the timers associated with an HBA. 1686 * @phba: pointer to lpfc hba data structure. 1687 * 1688 * This routine stops all the timers associated with a HBA. This function is 1689 * invoked before either putting a HBA offline or unloading the driver. 1690 **/ 1691 static void 1692 lpfc_stop_phba_timers(struct lpfc_hba *phba) 1693 { 1694 del_timer_sync(&phba->fcp_poll_timer); 1695 lpfc_stop_vport_timers(phba->pport); 1696 del_timer_sync(&phba->sli.mbox_tmo); 1697 del_timer_sync(&phba->fabric_block_timer); 1698 phba->hb_outstanding = 0; 1699 del_timer_sync(&phba->hb_tmofunc); 1700 del_timer_sync(&phba->eratt_poll); 1701 return; 1702 } 1703 1704 /** 1705 * lpfc_block_mgmt_io: Mark a HBA's management interface as blocked. 1706 * @phba: pointer to lpfc hba data structure. 1707 * 1708 * This routine marks a HBA's management interface as blocked. Once the HBA's 1709 * management interface is marked as blocked, all the user space access to 1710 * the HBA, whether they are from sysfs interface or libdfc interface will 1711 * all be blocked. The HBA is set to block the management interface when the 1712 * driver prepares the HBA interface for online or offline. 1713 **/ 1714 static void 1715 lpfc_block_mgmt_io(struct lpfc_hba * phba) 1716 { 1717 unsigned long iflag; 1718 1719 spin_lock_irqsave(&phba->hbalock, iflag); 1720 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 1721 spin_unlock_irqrestore(&phba->hbalock, iflag); 1722 } 1723 1724 /** 1725 * lpfc_online: Initialize and bring a HBA online. 1726 * @phba: pointer to lpfc hba data structure. 1727 * 1728 * This routine initializes the HBA and brings a HBA online. During this 1729 * process, the management interface is blocked to prevent user space access 1730 * to the HBA interfering with the driver initialization. 1731 * 1732 * Return codes 1733 * 0 - successful 1734 * 1 - failed 1735 **/ 1736 int 1737 lpfc_online(struct lpfc_hba *phba) 1738 { 1739 struct lpfc_vport *vport = phba->pport; 1740 struct lpfc_vport **vports; 1741 int i; 1742 1743 if (!phba) 1744 return 0; 1745 1746 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 1747 return 0; 1748 1749 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1750 "0458 Bring Adapter online\n"); 1751 1752 lpfc_block_mgmt_io(phba); 1753 1754 if (!lpfc_sli_queue_setup(phba)) { 1755 lpfc_unblock_mgmt_io(phba); 1756 return 1; 1757 } 1758 1759 if (lpfc_sli_hba_setup(phba)) { /* Initialize the HBA */ 1760 lpfc_unblock_mgmt_io(phba); 1761 return 1; 1762 } 1763 1764 vports = lpfc_create_vport_work_array(phba); 1765 if (vports != NULL) 1766 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { 1767 struct Scsi_Host *shost; 1768 shost = lpfc_shost_from_vport(vports[i]); 1769 spin_lock_irq(shost->host_lock); 1770 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 1771 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 1772 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 1773 spin_unlock_irq(shost->host_lock); 1774 } 1775 lpfc_destroy_vport_work_array(phba, vports); 1776 1777 lpfc_unblock_mgmt_io(phba); 1778 return 0; 1779 } 1780 1781 /** 1782 * lpfc_unblock_mgmt_io: Mark a HBA's management interface to be not blocked. 1783 * @phba: pointer to lpfc hba data structure. 1784 * 1785 * This routine marks a HBA's management interface as not blocked. Once the 1786 * HBA's management interface is marked as not blocked, all the user space 1787 * access to the HBA, whether they are from sysfs interface or libdfc 1788 * interface will be allowed. The HBA is set to block the management interface 1789 * when the driver prepares the HBA interface for online or offline and then 1790 * set to unblock the management interface afterwards. 1791 **/ 1792 void 1793 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 1794 { 1795 unsigned long iflag; 1796 1797 spin_lock_irqsave(&phba->hbalock, iflag); 1798 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 1799 spin_unlock_irqrestore(&phba->hbalock, iflag); 1800 } 1801 1802 /** 1803 * lpfc_offline_prep: Prepare a HBA to be brought offline. 1804 * @phba: pointer to lpfc hba data structure. 1805 * 1806 * This routine is invoked to prepare a HBA to be brought offline. It performs 1807 * unregistration login to all the nodes on all vports and flushes the mailbox 1808 * queue to make it ready to be brought offline. 1809 **/ 1810 void 1811 lpfc_offline_prep(struct lpfc_hba * phba) 1812 { 1813 struct lpfc_vport *vport = phba->pport; 1814 struct lpfc_nodelist *ndlp, *next_ndlp; 1815 struct lpfc_vport **vports; 1816 int i; 1817 1818 if (vport->fc_flag & FC_OFFLINE_MODE) 1819 return; 1820 1821 lpfc_block_mgmt_io(phba); 1822 1823 lpfc_linkdown(phba); 1824 1825 /* Issue an unreg_login to all nodes on all vports */ 1826 vports = lpfc_create_vport_work_array(phba); 1827 if (vports != NULL) { 1828 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { 1829 struct Scsi_Host *shost; 1830 1831 if (vports[i]->load_flag & FC_UNLOADING) 1832 continue; 1833 shost = lpfc_shost_from_vport(vports[i]); 1834 list_for_each_entry_safe(ndlp, next_ndlp, 1835 &vports[i]->fc_nodes, 1836 nlp_listp) { 1837 if (!NLP_CHK_NODE_ACT(ndlp)) 1838 continue; 1839 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 1840 continue; 1841 if (ndlp->nlp_type & NLP_FABRIC) { 1842 lpfc_disc_state_machine(vports[i], ndlp, 1843 NULL, NLP_EVT_DEVICE_RECOVERY); 1844 lpfc_disc_state_machine(vports[i], ndlp, 1845 NULL, NLP_EVT_DEVICE_RM); 1846 } 1847 spin_lock_irq(shost->host_lock); 1848 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 1849 spin_unlock_irq(shost->host_lock); 1850 lpfc_unreg_rpi(vports[i], ndlp); 1851 } 1852 } 1853 } 1854 lpfc_destroy_vport_work_array(phba, vports); 1855 1856 lpfc_sli_flush_mbox_queue(phba); 1857 } 1858 1859 /** 1860 * lpfc_offline: Bring a HBA offline. 1861 * @phba: pointer to lpfc hba data structure. 1862 * 1863 * This routine actually brings a HBA offline. It stops all the timers 1864 * associated with the HBA, brings down the SLI layer, and eventually 1865 * marks the HBA as in offline state for the upper layer protocol. 1866 **/ 1867 void 1868 lpfc_offline(struct lpfc_hba *phba) 1869 { 1870 struct Scsi_Host *shost; 1871 struct lpfc_vport **vports; 1872 int i; 1873 1874 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 1875 return; 1876 1877 /* stop all timers associated with this hba */ 1878 lpfc_stop_phba_timers(phba); 1879 vports = lpfc_create_vport_work_array(phba); 1880 if (vports != NULL) 1881 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) 1882 lpfc_stop_vport_timers(vports[i]); 1883 lpfc_destroy_vport_work_array(phba, vports); 1884 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1885 "0460 Bring Adapter offline\n"); 1886 /* Bring down the SLI Layer and cleanup. The HBA is offline 1887 now. */ 1888 lpfc_sli_hba_down(phba); 1889 spin_lock_irq(&phba->hbalock); 1890 phba->work_ha = 0; 1891 spin_unlock_irq(&phba->hbalock); 1892 vports = lpfc_create_vport_work_array(phba); 1893 if (vports != NULL) 1894 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { 1895 shost = lpfc_shost_from_vport(vports[i]); 1896 spin_lock_irq(shost->host_lock); 1897 vports[i]->work_port_events = 0; 1898 vports[i]->fc_flag |= FC_OFFLINE_MODE; 1899 spin_unlock_irq(shost->host_lock); 1900 } 1901 lpfc_destroy_vport_work_array(phba, vports); 1902 } 1903 1904 /** 1905 * lpfc_scsi_free: Free all the SCSI buffers and IOCBs from driver lists. 1906 * @phba: pointer to lpfc hba data structure. 1907 * 1908 * This routine is to free all the SCSI buffers and IOCBs from the driver 1909 * list back to kernel. It is called from lpfc_pci_remove_one to free 1910 * the internal resources before the device is removed from the system. 1911 * 1912 * Return codes 1913 * 0 - successful (for now, it always returns 0) 1914 **/ 1915 static int 1916 lpfc_scsi_free(struct lpfc_hba *phba) 1917 { 1918 struct lpfc_scsi_buf *sb, *sb_next; 1919 struct lpfc_iocbq *io, *io_next; 1920 1921 spin_lock_irq(&phba->hbalock); 1922 /* Release all the lpfc_scsi_bufs maintained by this host. */ 1923 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 1924 list_del(&sb->list); 1925 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 1926 sb->dma_handle); 1927 kfree(sb); 1928 phba->total_scsi_bufs--; 1929 } 1930 1931 /* Release all the lpfc_iocbq entries maintained by this host. */ 1932 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 1933 list_del(&io->list); 1934 kfree(io); 1935 phba->total_iocbq_bufs--; 1936 } 1937 1938 spin_unlock_irq(&phba->hbalock); 1939 1940 return 0; 1941 } 1942 1943 /** 1944 * lpfc_create_port: Create an FC port. 1945 * @phba: pointer to lpfc hba data structure. 1946 * @instance: a unique integer ID to this FC port. 1947 * @dev: pointer to the device data structure. 1948 * 1949 * This routine creates a FC port for the upper layer protocol. The FC port 1950 * can be created on top of either a physical port or a virtual port provided 1951 * by the HBA. This routine also allocates a SCSI host data structure (shost) 1952 * and associates the FC port created before adding the shost into the SCSI 1953 * layer. 1954 * 1955 * Return codes 1956 * @vport - pointer to the virtual N_Port data structure. 1957 * NULL - port create failed. 1958 **/ 1959 struct lpfc_vport * 1960 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 1961 { 1962 struct lpfc_vport *vport; 1963 struct Scsi_Host *shost; 1964 int error = 0; 1965 1966 if (dev != &phba->pcidev->dev) 1967 shost = scsi_host_alloc(&lpfc_vport_template, 1968 sizeof(struct lpfc_vport)); 1969 else 1970 shost = scsi_host_alloc(&lpfc_template, 1971 sizeof(struct lpfc_vport)); 1972 if (!shost) 1973 goto out; 1974 1975 vport = (struct lpfc_vport *) shost->hostdata; 1976 vport->phba = phba; 1977 vport->load_flag |= FC_LOADING; 1978 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 1979 vport->fc_rscn_flush = 0; 1980 1981 lpfc_get_vport_cfgparam(vport); 1982 shost->unique_id = instance; 1983 shost->max_id = LPFC_MAX_TARGET; 1984 shost->max_lun = vport->cfg_max_luns; 1985 shost->this_id = -1; 1986 shost->max_cmd_len = 16; 1987 /* 1988 * Set initial can_queue value since 0 is no longer supported and 1989 * scsi_add_host will fail. This will be adjusted later based on the 1990 * max xri value determined in hba setup. 1991 */ 1992 shost->can_queue = phba->cfg_hba_queue_depth - 10; 1993 if (dev != &phba->pcidev->dev) { 1994 shost->transportt = lpfc_vport_transport_template; 1995 vport->port_type = LPFC_NPIV_PORT; 1996 } else { 1997 shost->transportt = lpfc_transport_template; 1998 vport->port_type = LPFC_PHYSICAL_PORT; 1999 } 2000 2001 /* Initialize all internally managed lists. */ 2002 INIT_LIST_HEAD(&vport->fc_nodes); 2003 spin_lock_init(&vport->work_port_lock); 2004 2005 init_timer(&vport->fc_disctmo); 2006 vport->fc_disctmo.function = lpfc_disc_timeout; 2007 vport->fc_disctmo.data = (unsigned long)vport; 2008 2009 init_timer(&vport->fc_fdmitmo); 2010 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2011 vport->fc_fdmitmo.data = (unsigned long)vport; 2012 2013 init_timer(&vport->els_tmofunc); 2014 vport->els_tmofunc.function = lpfc_els_timeout; 2015 vport->els_tmofunc.data = (unsigned long)vport; 2016 2017 error = scsi_add_host(shost, dev); 2018 if (error) 2019 goto out_put_shost; 2020 2021 spin_lock_irq(&phba->hbalock); 2022 list_add_tail(&vport->listentry, &phba->port_list); 2023 spin_unlock_irq(&phba->hbalock); 2024 return vport; 2025 2026 out_put_shost: 2027 scsi_host_put(shost); 2028 out: 2029 return NULL; 2030 } 2031 2032 /** 2033 * destroy_port: Destroy an FC port. 2034 * @vport: pointer to an lpfc virtual N_Port data structure. 2035 * 2036 * This routine destroys a FC port from the upper layer protocol. All the 2037 * resources associated with the port are released. 2038 **/ 2039 void 2040 destroy_port(struct lpfc_vport *vport) 2041 { 2042 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2043 struct lpfc_hba *phba = vport->phba; 2044 2045 kfree(vport->vname); 2046 2047 lpfc_debugfs_terminate(vport); 2048 fc_remove_host(shost); 2049 scsi_remove_host(shost); 2050 2051 spin_lock_irq(&phba->hbalock); 2052 list_del_init(&vport->listentry); 2053 spin_unlock_irq(&phba->hbalock); 2054 2055 lpfc_cleanup(vport); 2056 return; 2057 } 2058 2059 /** 2060 * lpfc_get_instance: Get a unique integer ID. 2061 * 2062 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2063 * uses the kernel idr facility to perform the task. 2064 * 2065 * Return codes: 2066 * instance - a unique integer ID allocated as the new instance. 2067 * -1 - lpfc get instance failed. 2068 **/ 2069 int 2070 lpfc_get_instance(void) 2071 { 2072 int instance = 0; 2073 2074 /* Assign an unused number */ 2075 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2076 return -1; 2077 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2078 return -1; 2079 return instance; 2080 } 2081 2082 /** 2083 * lpfc_scan_finished: method for SCSI layer to detect whether scan is done. 2084 * @shost: pointer to SCSI host data structure. 2085 * @time: elapsed time of the scan in jiffies. 2086 * 2087 * This routine is called by the SCSI layer with a SCSI host to determine 2088 * whether the scan host is finished. 2089 * 2090 * Note: there is no scan_start function as adapter initialization will have 2091 * asynchronously kicked off the link initialization. 2092 * 2093 * Return codes 2094 * 0 - SCSI host scan is not over yet. 2095 * 1 - SCSI host scan is over. 2096 **/ 2097 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2098 { 2099 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2100 struct lpfc_hba *phba = vport->phba; 2101 int stat = 0; 2102 2103 spin_lock_irq(shost->host_lock); 2104 2105 if (vport->load_flag & FC_UNLOADING) { 2106 stat = 1; 2107 goto finished; 2108 } 2109 if (time >= 30 * HZ) { 2110 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2111 "0461 Scanning longer than 30 " 2112 "seconds. Continuing initialization\n"); 2113 stat = 1; 2114 goto finished; 2115 } 2116 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2117 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2118 "0465 Link down longer than 15 " 2119 "seconds. Continuing initialization\n"); 2120 stat = 1; 2121 goto finished; 2122 } 2123 2124 if (vport->port_state != LPFC_VPORT_READY) 2125 goto finished; 2126 if (vport->num_disc_nodes || vport->fc_prli_sent) 2127 goto finished; 2128 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2129 goto finished; 2130 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2131 goto finished; 2132 2133 stat = 1; 2134 2135 finished: 2136 spin_unlock_irq(shost->host_lock); 2137 return stat; 2138 } 2139 2140 /** 2141 * lpfc_host_attrib_init: Initialize SCSI host attributes on a FC port. 2142 * @shost: pointer to SCSI host data structure. 2143 * 2144 * This routine initializes a given SCSI host attributes on a FC port. The 2145 * SCSI host can be either on top of a physical port or a virtual port. 2146 **/ 2147 void lpfc_host_attrib_init(struct Scsi_Host *shost) 2148 { 2149 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2150 struct lpfc_hba *phba = vport->phba; 2151 /* 2152 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2153 */ 2154 2155 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2156 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2157 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2158 2159 memset(fc_host_supported_fc4s(shost), 0, 2160 sizeof(fc_host_supported_fc4s(shost))); 2161 fc_host_supported_fc4s(shost)[2] = 1; 2162 fc_host_supported_fc4s(shost)[7] = 1; 2163 2164 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2165 sizeof fc_host_symbolic_name(shost)); 2166 2167 fc_host_supported_speeds(shost) = 0; 2168 if (phba->lmt & LMT_10Gb) 2169 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2170 if (phba->lmt & LMT_8Gb) 2171 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2172 if (phba->lmt & LMT_4Gb) 2173 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2174 if (phba->lmt & LMT_2Gb) 2175 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2176 if (phba->lmt & LMT_1Gb) 2177 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2178 2179 fc_host_maxframe_size(shost) = 2180 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2181 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2182 2183 /* This value is also unchanging */ 2184 memset(fc_host_active_fc4s(shost), 0, 2185 sizeof(fc_host_active_fc4s(shost))); 2186 fc_host_active_fc4s(shost)[2] = 1; 2187 fc_host_active_fc4s(shost)[7] = 1; 2188 2189 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2190 spin_lock_irq(shost->host_lock); 2191 vport->load_flag &= ~FC_LOADING; 2192 spin_unlock_irq(shost->host_lock); 2193 } 2194 2195 /** 2196 * lpfc_enable_msix: Enable MSI-X interrupt mode. 2197 * @phba: pointer to lpfc hba data structure. 2198 * 2199 * This routine is invoked to enable the MSI-X interrupt vectors. The kernel 2200 * function pci_enable_msix() is called to enable the MSI-X vectors. Note that 2201 * pci_enable_msix(), once invoked, enables either all or nothing, depending 2202 * on the current availability of PCI vector resources. The device driver is 2203 * responsible for calling the individual request_irq() to register each MSI-X 2204 * vector with a interrupt handler, which is done in this function. Note that 2205 * later when device is unloading, the driver should always call free_irq() 2206 * on all MSI-X vectors it has done request_irq() on before calling 2207 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 2208 * will be left with MSI-X enabled and leaks its vectors. 2209 * 2210 * Return codes 2211 * 0 - sucessful 2212 * other values - error 2213 **/ 2214 static int 2215 lpfc_enable_msix(struct lpfc_hba *phba) 2216 { 2217 int rc, i; 2218 LPFC_MBOXQ_t *pmb; 2219 2220 /* Set up MSI-X multi-message vectors */ 2221 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 2222 phba->msix_entries[i].entry = i; 2223 2224 /* Configure MSI-X capability structure */ 2225 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 2226 ARRAY_SIZE(phba->msix_entries)); 2227 if (rc) { 2228 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2229 "0420 Enable MSI-X failed (%d), continuing " 2230 "with MSI\n", rc); 2231 goto msi_fail_out; 2232 } else 2233 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 2234 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2235 "0477 MSI-X entry[%d]: vector=x%x " 2236 "message=%d\n", i, 2237 phba->msix_entries[i].vector, 2238 phba->msix_entries[i].entry); 2239 /* 2240 * Assign MSI-X vectors to interrupt handlers 2241 */ 2242 2243 /* vector-0 is associated to slow-path handler */ 2244 rc = request_irq(phba->msix_entries[0].vector, &lpfc_sp_intr_handler, 2245 IRQF_SHARED, LPFC_SP_DRIVER_HANDLER_NAME, phba); 2246 if (rc) { 2247 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2248 "0421 MSI-X slow-path request_irq failed " 2249 "(%d), continuing with MSI\n", rc); 2250 goto msi_fail_out; 2251 } 2252 2253 /* vector-1 is associated to fast-path handler */ 2254 rc = request_irq(phba->msix_entries[1].vector, &lpfc_fp_intr_handler, 2255 IRQF_SHARED, LPFC_FP_DRIVER_HANDLER_NAME, phba); 2256 2257 if (rc) { 2258 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2259 "0429 MSI-X fast-path request_irq failed " 2260 "(%d), continuing with MSI\n", rc); 2261 goto irq_fail_out; 2262 } 2263 2264 /* 2265 * Configure HBA MSI-X attention conditions to messages 2266 */ 2267 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2268 2269 if (!pmb) { 2270 rc = -ENOMEM; 2271 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2272 "0474 Unable to allocate memory for issuing " 2273 "MBOX_CONFIG_MSI command\n"); 2274 goto mem_fail_out; 2275 } 2276 rc = lpfc_config_msi(phba, pmb); 2277 if (rc) 2278 goto mbx_fail_out; 2279 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 2280 if (rc != MBX_SUCCESS) { 2281 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 2282 "0351 Config MSI mailbox command failed, " 2283 "mbxCmd x%x, mbxStatus x%x\n", 2284 pmb->mb.mbxCommand, pmb->mb.mbxStatus); 2285 goto mbx_fail_out; 2286 } 2287 2288 /* Free memory allocated for mailbox command */ 2289 mempool_free(pmb, phba->mbox_mem_pool); 2290 return rc; 2291 2292 mbx_fail_out: 2293 /* Free memory allocated for mailbox command */ 2294 mempool_free(pmb, phba->mbox_mem_pool); 2295 2296 mem_fail_out: 2297 /* free the irq already requested */ 2298 free_irq(phba->msix_entries[1].vector, phba); 2299 2300 irq_fail_out: 2301 /* free the irq already requested */ 2302 free_irq(phba->msix_entries[0].vector, phba); 2303 2304 msi_fail_out: 2305 /* Unconfigure MSI-X capability structure */ 2306 pci_disable_msix(phba->pcidev); 2307 return rc; 2308 } 2309 2310 /** 2311 * lpfc_disable_msix: Disable MSI-X interrupt mode. 2312 * @phba: pointer to lpfc hba data structure. 2313 * 2314 * This routine is invoked to release the MSI-X vectors and then disable the 2315 * MSI-X interrupt mode. 2316 **/ 2317 static void 2318 lpfc_disable_msix(struct lpfc_hba *phba) 2319 { 2320 int i; 2321 2322 /* Free up MSI-X multi-message vectors */ 2323 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 2324 free_irq(phba->msix_entries[i].vector, phba); 2325 /* Disable MSI-X */ 2326 pci_disable_msix(phba->pcidev); 2327 } 2328 2329 /** 2330 * lpfc_pci_probe_one: lpfc PCI probe func to register device to PCI subsystem. 2331 * @pdev: pointer to PCI device 2332 * @pid: pointer to PCI device identifier 2333 * 2334 * This routine is to be registered to the kernel's PCI subsystem. When an 2335 * Emulex HBA is presented in PCI bus, the kernel PCI subsystem looks at 2336 * PCI device-specific information of the device and driver to see if the 2337 * driver state that it can support this kind of device. If the match is 2338 * successful, the driver core invokes this routine. If this routine 2339 * determines it can claim the HBA, it does all the initialization that it 2340 * needs to do to handle the HBA properly. 2341 * 2342 * Return code 2343 * 0 - driver can claim the device 2344 * negative value - driver can not claim the device 2345 **/ 2346 static int __devinit 2347 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 2348 { 2349 struct lpfc_vport *vport = NULL; 2350 struct lpfc_hba *phba; 2351 struct lpfc_sli *psli; 2352 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 2353 struct Scsi_Host *shost = NULL; 2354 void *ptr; 2355 unsigned long bar0map_len, bar2map_len; 2356 int error = -ENODEV, retval; 2357 int i, hbq_count; 2358 uint16_t iotag; 2359 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 2360 struct lpfc_adapter_event_header adapter_event; 2361 2362 if (pci_enable_device_mem(pdev)) 2363 goto out; 2364 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 2365 goto out_disable_device; 2366 2367 phba = kzalloc(sizeof (struct lpfc_hba), GFP_KERNEL); 2368 if (!phba) 2369 goto out_release_regions; 2370 2371 atomic_set(&phba->fast_event_count, 0); 2372 spin_lock_init(&phba->hbalock); 2373 2374 /* Initialize ndlp management spinlock */ 2375 spin_lock_init(&phba->ndlp_lock); 2376 2377 phba->pcidev = pdev; 2378 2379 /* Assign an unused board number */ 2380 if ((phba->brd_no = lpfc_get_instance()) < 0) 2381 goto out_free_phba; 2382 2383 INIT_LIST_HEAD(&phba->port_list); 2384 init_waitqueue_head(&phba->wait_4_mlo_m_q); 2385 /* 2386 * Get all the module params for configuring this host and then 2387 * establish the host. 2388 */ 2389 lpfc_get_cfgparam(phba); 2390 phba->max_vpi = LPFC_MAX_VPI; 2391 2392 /* Initialize timers used by driver */ 2393 init_timer(&phba->hb_tmofunc); 2394 phba->hb_tmofunc.function = lpfc_hb_timeout; 2395 phba->hb_tmofunc.data = (unsigned long)phba; 2396 2397 psli = &phba->sli; 2398 init_timer(&psli->mbox_tmo); 2399 psli->mbox_tmo.function = lpfc_mbox_timeout; 2400 psli->mbox_tmo.data = (unsigned long) phba; 2401 init_timer(&phba->fcp_poll_timer); 2402 phba->fcp_poll_timer.function = lpfc_poll_timeout; 2403 phba->fcp_poll_timer.data = (unsigned long) phba; 2404 init_timer(&phba->fabric_block_timer); 2405 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 2406 phba->fabric_block_timer.data = (unsigned long) phba; 2407 init_timer(&phba->eratt_poll); 2408 phba->eratt_poll.function = lpfc_poll_eratt; 2409 phba->eratt_poll.data = (unsigned long) phba; 2410 2411 pci_set_master(pdev); 2412 pci_try_set_mwi(pdev); 2413 2414 if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0) 2415 if (pci_set_dma_mask(phba->pcidev, DMA_32BIT_MASK) != 0) 2416 goto out_idr_remove; 2417 2418 /* 2419 * Get the bus address of Bar0 and Bar2 and the number of bytes 2420 * required by each mapping. 2421 */ 2422 phba->pci_bar0_map = pci_resource_start(phba->pcidev, 0); 2423 bar0map_len = pci_resource_len(phba->pcidev, 0); 2424 2425 phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2); 2426 bar2map_len = pci_resource_len(phba->pcidev, 2); 2427 2428 /* Map HBA SLIM to a kernel virtual address. */ 2429 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 2430 if (!phba->slim_memmap_p) { 2431 error = -ENODEV; 2432 dev_printk(KERN_ERR, &pdev->dev, 2433 "ioremap failed for SLIM memory.\n"); 2434 goto out_idr_remove; 2435 } 2436 2437 /* Map HBA Control Registers to a kernel virtual address. */ 2438 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 2439 if (!phba->ctrl_regs_memmap_p) { 2440 error = -ENODEV; 2441 dev_printk(KERN_ERR, &pdev->dev, 2442 "ioremap failed for HBA control registers.\n"); 2443 goto out_iounmap_slim; 2444 } 2445 2446 /* Allocate memory for SLI-2 structures */ 2447 phba->slim2p.virt = dma_alloc_coherent(&phba->pcidev->dev, 2448 SLI2_SLIM_SIZE, 2449 &phba->slim2p.phys, 2450 GFP_KERNEL); 2451 if (!phba->slim2p.virt) 2452 goto out_iounmap; 2453 2454 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 2455 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 2456 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 2457 phba->IOCBs = (phba->slim2p.virt + 2458 offsetof(struct lpfc_sli2_slim, IOCBs)); 2459 2460 phba->hbqslimp.virt = dma_alloc_coherent(&phba->pcidev->dev, 2461 lpfc_sli_hbq_size(), 2462 &phba->hbqslimp.phys, 2463 GFP_KERNEL); 2464 if (!phba->hbqslimp.virt) 2465 goto out_free_slim; 2466 2467 hbq_count = lpfc_sli_hbq_count(); 2468 ptr = phba->hbqslimp.virt; 2469 for (i = 0; i < hbq_count; ++i) { 2470 phba->hbqs[i].hbq_virt = ptr; 2471 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 2472 ptr += (lpfc_hbq_defs[i]->entry_count * 2473 sizeof(struct lpfc_hbq_entry)); 2474 } 2475 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 2476 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 2477 2478 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 2479 2480 INIT_LIST_HEAD(&phba->hbqbuf_in_list); 2481 2482 /* Initialize the SLI Layer to run with lpfc HBAs. */ 2483 lpfc_sli_setup(phba); 2484 lpfc_sli_queue_setup(phba); 2485 2486 retval = lpfc_mem_alloc(phba); 2487 if (retval) { 2488 error = retval; 2489 goto out_free_hbqslimp; 2490 } 2491 2492 /* Initialize and populate the iocb list per host. */ 2493 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 2494 for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) { 2495 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 2496 if (iocbq_entry == NULL) { 2497 printk(KERN_ERR "%s: only allocated %d iocbs of " 2498 "expected %d count. Unloading driver.\n", 2499 __func__, i, LPFC_IOCB_LIST_CNT); 2500 error = -ENOMEM; 2501 goto out_free_iocbq; 2502 } 2503 2504 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 2505 if (iotag == 0) { 2506 kfree (iocbq_entry); 2507 printk(KERN_ERR "%s: failed to allocate IOTAG. " 2508 "Unloading driver.\n", 2509 __func__); 2510 error = -ENOMEM; 2511 goto out_free_iocbq; 2512 } 2513 2514 spin_lock_irq(&phba->hbalock); 2515 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 2516 phba->total_iocbq_bufs++; 2517 spin_unlock_irq(&phba->hbalock); 2518 } 2519 2520 /* Initialize HBA structure */ 2521 phba->fc_edtov = FF_DEF_EDTOV; 2522 phba->fc_ratov = FF_DEF_RATOV; 2523 phba->fc_altov = FF_DEF_ALTOV; 2524 phba->fc_arbtov = FF_DEF_ARBTOV; 2525 2526 INIT_LIST_HEAD(&phba->work_list); 2527 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 2528 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 2529 2530 /* Initialize the wait queue head for the kernel thread */ 2531 init_waitqueue_head(&phba->work_waitq); 2532 2533 /* Startup the kernel thread for this host adapter. */ 2534 phba->worker_thread = kthread_run(lpfc_do_work, phba, 2535 "lpfc_worker_%d", phba->brd_no); 2536 if (IS_ERR(phba->worker_thread)) { 2537 error = PTR_ERR(phba->worker_thread); 2538 goto out_free_iocbq; 2539 } 2540 2541 /* Initialize the list of scsi buffers used by driver for scsi IO. */ 2542 spin_lock_init(&phba->scsi_buf_list_lock); 2543 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 2544 2545 /* Initialize list of fabric iocbs */ 2546 INIT_LIST_HEAD(&phba->fabric_iocb_list); 2547 2548 /* Initialize list to save ELS buffers */ 2549 INIT_LIST_HEAD(&phba->elsbuf); 2550 2551 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 2552 if (!vport) 2553 goto out_kthread_stop; 2554 2555 shost = lpfc_shost_from_vport(vport); 2556 phba->pport = vport; 2557 lpfc_debugfs_initialize(vport); 2558 2559 pci_set_drvdata(pdev, shost); 2560 phba->intr_type = NONE; 2561 2562 phba->MBslimaddr = phba->slim_memmap_p; 2563 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 2564 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 2565 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 2566 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 2567 2568 /* Configure and enable interrupt */ 2569 if (phba->cfg_use_msi == 2) { 2570 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 2571 error = lpfc_sli_config_port(phba, 3); 2572 if (error) 2573 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2574 "0427 Firmware not capable of SLI 3 mode.\n"); 2575 else { 2576 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2577 "0426 Firmware capable of SLI 3 mode.\n"); 2578 /* Now, try to enable MSI-X interrupt mode */ 2579 error = lpfc_enable_msix(phba); 2580 if (!error) { 2581 phba->intr_type = MSIX; 2582 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2583 "0430 enable MSI-X mode.\n"); 2584 } 2585 } 2586 } 2587 2588 /* Fallback to MSI if MSI-X initialization failed */ 2589 if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) { 2590 retval = pci_enable_msi(phba->pcidev); 2591 if (!retval) { 2592 phba->intr_type = MSI; 2593 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2594 "0473 enable MSI mode.\n"); 2595 } else 2596 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2597 "0452 enable IRQ mode.\n"); 2598 } 2599 2600 /* MSI-X is the only case the doesn't need to call request_irq */ 2601 if (phba->intr_type != MSIX) { 2602 retval = request_irq(phba->pcidev->irq, lpfc_intr_handler, 2603 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 2604 if (retval) { 2605 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0451 Enable " 2606 "interrupt handler failed\n"); 2607 error = retval; 2608 goto out_disable_msi; 2609 } else if (phba->intr_type != MSI) 2610 phba->intr_type = INTx; 2611 } 2612 2613 if (lpfc_alloc_sysfs_attr(vport)) { 2614 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2615 "1476 Failed to allocate sysfs attr\n"); 2616 error = -ENOMEM; 2617 goto out_free_irq; 2618 } 2619 2620 if (lpfc_sli_hba_setup(phba)) { 2621 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2622 "1477 Failed to set up hba\n"); 2623 error = -ENODEV; 2624 goto out_remove_device; 2625 } 2626 2627 /* 2628 * hba setup may have changed the hba_queue_depth so we need to adjust 2629 * the value of can_queue. 2630 */ 2631 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2632 2633 lpfc_host_attrib_init(shost); 2634 2635 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 2636 spin_lock_irq(shost->host_lock); 2637 lpfc_poll_start_timer(phba); 2638 spin_unlock_irq(shost->host_lock); 2639 } 2640 2641 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2642 "0428 Perform SCSI scan\n"); 2643 /* Send board arrival event to upper layer */ 2644 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 2645 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 2646 fc_host_post_vendor_event(shost, fc_get_event_number(), 2647 sizeof(adapter_event), 2648 (char *) &adapter_event, 2649 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 2650 2651 scsi_scan_host(shost); 2652 2653 return 0; 2654 2655 out_remove_device: 2656 lpfc_free_sysfs_attr(vport); 2657 spin_lock_irq(shost->host_lock); 2658 vport->load_flag |= FC_UNLOADING; 2659 spin_unlock_irq(shost->host_lock); 2660 out_free_irq: 2661 lpfc_stop_phba_timers(phba); 2662 phba->pport->work_port_events = 0; 2663 2664 if (phba->intr_type == MSIX) 2665 lpfc_disable_msix(phba); 2666 else 2667 free_irq(phba->pcidev->irq, phba); 2668 2669 out_disable_msi: 2670 if (phba->intr_type == MSI) 2671 pci_disable_msi(phba->pcidev); 2672 destroy_port(vport); 2673 out_kthread_stop: 2674 kthread_stop(phba->worker_thread); 2675 out_free_iocbq: 2676 list_for_each_entry_safe(iocbq_entry, iocbq_next, 2677 &phba->lpfc_iocb_list, list) { 2678 kfree(iocbq_entry); 2679 phba->total_iocbq_bufs--; 2680 } 2681 lpfc_mem_free(phba); 2682 out_free_hbqslimp: 2683 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 2684 phba->hbqslimp.virt, phba->hbqslimp.phys); 2685 out_free_slim: 2686 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 2687 phba->slim2p.virt, phba->slim2p.phys); 2688 out_iounmap: 2689 iounmap(phba->ctrl_regs_memmap_p); 2690 out_iounmap_slim: 2691 iounmap(phba->slim_memmap_p); 2692 out_idr_remove: 2693 idr_remove(&lpfc_hba_index, phba->brd_no); 2694 out_free_phba: 2695 kfree(phba); 2696 out_release_regions: 2697 pci_release_selected_regions(pdev, bars); 2698 out_disable_device: 2699 pci_disable_device(pdev); 2700 out: 2701 pci_set_drvdata(pdev, NULL); 2702 if (shost) 2703 scsi_host_put(shost); 2704 return error; 2705 } 2706 2707 /** 2708 * lpfc_pci_remove_one: lpfc PCI func to unregister device from PCI subsystem. 2709 * @pdev: pointer to PCI device 2710 * 2711 * This routine is to be registered to the kernel's PCI subsystem. When an 2712 * Emulex HBA is removed from PCI bus. It perform all the necessary cleanup 2713 * for the HBA device to be removed from the PCI subsystem properly. 2714 **/ 2715 static void __devexit 2716 lpfc_pci_remove_one(struct pci_dev *pdev) 2717 { 2718 struct Scsi_Host *shost = pci_get_drvdata(pdev); 2719 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2720 struct lpfc_hba *phba = vport->phba; 2721 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 2722 2723 spin_lock_irq(&phba->hbalock); 2724 vport->load_flag |= FC_UNLOADING; 2725 spin_unlock_irq(&phba->hbalock); 2726 2727 kfree(vport->vname); 2728 lpfc_free_sysfs_attr(vport); 2729 2730 kthread_stop(phba->worker_thread); 2731 2732 fc_remove_host(shost); 2733 scsi_remove_host(shost); 2734 lpfc_cleanup(vport); 2735 2736 /* 2737 * Bring down the SLI Layer. This step disable all interrupts, 2738 * clears the rings, discards all mailbox commands, and resets 2739 * the HBA. 2740 */ 2741 lpfc_sli_hba_down(phba); 2742 lpfc_sli_brdrestart(phba); 2743 2744 lpfc_stop_phba_timers(phba); 2745 spin_lock_irq(&phba->hbalock); 2746 list_del_init(&vport->listentry); 2747 spin_unlock_irq(&phba->hbalock); 2748 2749 lpfc_debugfs_terminate(vport); 2750 2751 if (phba->intr_type == MSIX) 2752 lpfc_disable_msix(phba); 2753 else { 2754 free_irq(phba->pcidev->irq, phba); 2755 if (phba->intr_type == MSI) 2756 pci_disable_msi(phba->pcidev); 2757 } 2758 2759 pci_set_drvdata(pdev, NULL); 2760 scsi_host_put(shost); 2761 2762 /* 2763 * Call scsi_free before mem_free since scsi bufs are released to their 2764 * corresponding pools here. 2765 */ 2766 lpfc_scsi_free(phba); 2767 lpfc_mem_free(phba); 2768 2769 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 2770 phba->hbqslimp.virt, phba->hbqslimp.phys); 2771 2772 /* Free resources associated with SLI2 interface */ 2773 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 2774 phba->slim2p.virt, phba->slim2p.phys); 2775 2776 /* unmap adapter SLIM and Control Registers */ 2777 iounmap(phba->ctrl_regs_memmap_p); 2778 iounmap(phba->slim_memmap_p); 2779 2780 idr_remove(&lpfc_hba_index, phba->brd_no); 2781 2782 kfree(phba); 2783 2784 pci_release_selected_regions(pdev, bars); 2785 pci_disable_device(pdev); 2786 } 2787 2788 /** 2789 * lpfc_io_error_detected: Driver method for handling PCI I/O error detected. 2790 * @pdev: pointer to PCI device. 2791 * @state: the current PCI connection state. 2792 * 2793 * This routine is registered to the PCI subsystem for error handling. This 2794 * function is called by the PCI subsystem after a PCI bus error affecting 2795 * this device has been detected. When this function is invoked, it will 2796 * need to stop all the I/Os and interrupt(s) to the device. Once that is 2797 * done, it will return PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to 2798 * perform proper recovery as desired. 2799 * 2800 * Return codes 2801 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 2802 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 2803 **/ 2804 static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev, 2805 pci_channel_state_t state) 2806 { 2807 struct Scsi_Host *shost = pci_get_drvdata(pdev); 2808 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2809 struct lpfc_sli *psli = &phba->sli; 2810 struct lpfc_sli_ring *pring; 2811 2812 if (state == pci_channel_io_perm_failure) { 2813 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2814 "0472 PCI channel I/O permanent failure\n"); 2815 /* Block all SCSI devices' I/Os on the host */ 2816 lpfc_scsi_dev_block(phba); 2817 /* Clean up all driver's outstanding SCSI I/Os */ 2818 lpfc_sli_flush_fcp_rings(phba); 2819 return PCI_ERS_RESULT_DISCONNECT; 2820 } 2821 2822 pci_disable_device(pdev); 2823 /* 2824 * There may be I/Os dropped by the firmware. 2825 * Error iocb (I/O) on txcmplq and let the SCSI layer 2826 * retry it after re-establishing link. 2827 */ 2828 pring = &psli->ring[psli->fcp_ring]; 2829 lpfc_sli_abort_iocb_ring(phba, pring); 2830 2831 if (phba->intr_type == MSIX) 2832 lpfc_disable_msix(phba); 2833 else { 2834 free_irq(phba->pcidev->irq, phba); 2835 if (phba->intr_type == MSI) 2836 pci_disable_msi(phba->pcidev); 2837 } 2838 2839 /* Request a slot reset. */ 2840 return PCI_ERS_RESULT_NEED_RESET; 2841 } 2842 2843 /** 2844 * lpfc_io_slot_reset: Restart a PCI device from scratch. 2845 * @pdev: pointer to PCI device. 2846 * 2847 * This routine is registered to the PCI subsystem for error handling. This is 2848 * called after PCI bus has been reset to restart the PCI card from scratch, 2849 * as if from a cold-boot. During the PCI subsystem error recovery, after the 2850 * driver returns PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform 2851 * proper error recovery and then call this routine before calling the .resume 2852 * method to recover the device. This function will initialize the HBA device, 2853 * enable the interrupt, but it will just put the HBA to offline state without 2854 * passing any I/O traffic. 2855 * 2856 * Return codes 2857 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 2858 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 2859 */ 2860 static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev) 2861 { 2862 struct Scsi_Host *shost = pci_get_drvdata(pdev); 2863 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2864 struct lpfc_sli *psli = &phba->sli; 2865 int error, retval; 2866 2867 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 2868 if (pci_enable_device_mem(pdev)) { 2869 printk(KERN_ERR "lpfc: Cannot re-enable " 2870 "PCI device after reset.\n"); 2871 return PCI_ERS_RESULT_DISCONNECT; 2872 } 2873 2874 pci_set_master(pdev); 2875 2876 spin_lock_irq(&phba->hbalock); 2877 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 2878 spin_unlock_irq(&phba->hbalock); 2879 2880 /* Enable configured interrupt method */ 2881 phba->intr_type = NONE; 2882 if (phba->cfg_use_msi == 2) { 2883 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 2884 error = lpfc_sli_config_port(phba, 3); 2885 if (error) 2886 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2887 "0478 Firmware not capable of SLI 3 mode.\n"); 2888 else { 2889 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2890 "0479 Firmware capable of SLI 3 mode.\n"); 2891 /* Now, try to enable MSI-X interrupt mode */ 2892 error = lpfc_enable_msix(phba); 2893 if (!error) { 2894 phba->intr_type = MSIX; 2895 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2896 "0480 enable MSI-X mode.\n"); 2897 } 2898 } 2899 } 2900 2901 /* Fallback to MSI if MSI-X initialization failed */ 2902 if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) { 2903 retval = pci_enable_msi(phba->pcidev); 2904 if (!retval) { 2905 phba->intr_type = MSI; 2906 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2907 "0481 enable MSI mode.\n"); 2908 } else 2909 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2910 "0470 enable IRQ mode.\n"); 2911 } 2912 2913 /* MSI-X is the only case the doesn't need to call request_irq */ 2914 if (phba->intr_type != MSIX) { 2915 retval = request_irq(phba->pcidev->irq, lpfc_intr_handler, 2916 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 2917 if (retval) { 2918 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2919 "0471 Enable interrupt handler " 2920 "failed\n"); 2921 } else if (phba->intr_type != MSI) 2922 phba->intr_type = INTx; 2923 } 2924 2925 /* Take device offline; this will perform cleanup */ 2926 lpfc_offline(phba); 2927 lpfc_sli_brdrestart(phba); 2928 2929 return PCI_ERS_RESULT_RECOVERED; 2930 } 2931 2932 /** 2933 * lpfc_io_resume: Resume PCI I/O operation. 2934 * @pdev: pointer to PCI device 2935 * 2936 * This routine is registered to the PCI subsystem for error handling. It is 2937 * called when kernel error recovery tells the lpfc driver that it is ok to 2938 * resume normal PCI operation after PCI bus error recovery. After this call, 2939 * traffic can start to flow from this device again. 2940 */ 2941 static void lpfc_io_resume(struct pci_dev *pdev) 2942 { 2943 struct Scsi_Host *shost = pci_get_drvdata(pdev); 2944 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2945 2946 lpfc_online(phba); 2947 } 2948 2949 static struct pci_device_id lpfc_id_table[] = { 2950 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 2951 PCI_ANY_ID, PCI_ANY_ID, }, 2952 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 2953 PCI_ANY_ID, PCI_ANY_ID, }, 2954 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 2955 PCI_ANY_ID, PCI_ANY_ID, }, 2956 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 2957 PCI_ANY_ID, PCI_ANY_ID, }, 2958 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 2959 PCI_ANY_ID, PCI_ANY_ID, }, 2960 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 2961 PCI_ANY_ID, PCI_ANY_ID, }, 2962 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 2963 PCI_ANY_ID, PCI_ANY_ID, }, 2964 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 2965 PCI_ANY_ID, PCI_ANY_ID, }, 2966 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 2967 PCI_ANY_ID, PCI_ANY_ID, }, 2968 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 2969 PCI_ANY_ID, PCI_ANY_ID, }, 2970 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 2971 PCI_ANY_ID, PCI_ANY_ID, }, 2972 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 2973 PCI_ANY_ID, PCI_ANY_ID, }, 2974 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 2975 PCI_ANY_ID, PCI_ANY_ID, }, 2976 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 2977 PCI_ANY_ID, PCI_ANY_ID, }, 2978 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 2979 PCI_ANY_ID, PCI_ANY_ID, }, 2980 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 2981 PCI_ANY_ID, PCI_ANY_ID, }, 2982 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 2983 PCI_ANY_ID, PCI_ANY_ID, }, 2984 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 2985 PCI_ANY_ID, PCI_ANY_ID, }, 2986 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 2987 PCI_ANY_ID, PCI_ANY_ID, }, 2988 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 2989 PCI_ANY_ID, PCI_ANY_ID, }, 2990 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 2991 PCI_ANY_ID, PCI_ANY_ID, }, 2992 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 2993 PCI_ANY_ID, PCI_ANY_ID, }, 2994 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 2995 PCI_ANY_ID, PCI_ANY_ID, }, 2996 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 2997 PCI_ANY_ID, PCI_ANY_ID, }, 2998 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 2999 PCI_ANY_ID, PCI_ANY_ID, }, 3000 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 3001 PCI_ANY_ID, PCI_ANY_ID, }, 3002 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 3003 PCI_ANY_ID, PCI_ANY_ID, }, 3004 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 3005 PCI_ANY_ID, PCI_ANY_ID, }, 3006 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 3007 PCI_ANY_ID, PCI_ANY_ID, }, 3008 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 3009 PCI_ANY_ID, PCI_ANY_ID, }, 3010 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 3011 PCI_ANY_ID, PCI_ANY_ID, }, 3012 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 3013 PCI_ANY_ID, PCI_ANY_ID, }, 3014 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 3015 PCI_ANY_ID, PCI_ANY_ID, }, 3016 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 3017 PCI_ANY_ID, PCI_ANY_ID, }, 3018 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 3019 PCI_ANY_ID, PCI_ANY_ID, }, 3020 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 3021 PCI_ANY_ID, PCI_ANY_ID, }, 3022 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 3023 PCI_ANY_ID, PCI_ANY_ID, }, 3024 { 0 } 3025 }; 3026 3027 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 3028 3029 static struct pci_error_handlers lpfc_err_handler = { 3030 .error_detected = lpfc_io_error_detected, 3031 .slot_reset = lpfc_io_slot_reset, 3032 .resume = lpfc_io_resume, 3033 }; 3034 3035 static struct pci_driver lpfc_driver = { 3036 .name = LPFC_DRIVER_NAME, 3037 .id_table = lpfc_id_table, 3038 .probe = lpfc_pci_probe_one, 3039 .remove = __devexit_p(lpfc_pci_remove_one), 3040 .err_handler = &lpfc_err_handler, 3041 }; 3042 3043 /** 3044 * lpfc_init: lpfc module initialization routine. 3045 * 3046 * This routine is to be invoked when the lpfc module is loaded into the 3047 * kernel. The special kernel macro module_init() is used to indicate the 3048 * role of this routine to the kernel as lpfc module entry point. 3049 * 3050 * Return codes 3051 * 0 - successful 3052 * -ENOMEM - FC attach transport failed 3053 * all others - failed 3054 */ 3055 static int __init 3056 lpfc_init(void) 3057 { 3058 int error = 0; 3059 3060 printk(LPFC_MODULE_DESC "\n"); 3061 printk(LPFC_COPYRIGHT "\n"); 3062 3063 if (lpfc_enable_npiv) { 3064 lpfc_transport_functions.vport_create = lpfc_vport_create; 3065 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 3066 } 3067 lpfc_transport_template = 3068 fc_attach_transport(&lpfc_transport_functions); 3069 if (lpfc_transport_template == NULL) 3070 return -ENOMEM; 3071 if (lpfc_enable_npiv) { 3072 lpfc_vport_transport_template = 3073 fc_attach_transport(&lpfc_vport_transport_functions); 3074 if (lpfc_vport_transport_template == NULL) { 3075 fc_release_transport(lpfc_transport_template); 3076 return -ENOMEM; 3077 } 3078 } 3079 error = pci_register_driver(&lpfc_driver); 3080 if (error) { 3081 fc_release_transport(lpfc_transport_template); 3082 if (lpfc_enable_npiv) 3083 fc_release_transport(lpfc_vport_transport_template); 3084 } 3085 3086 return error; 3087 } 3088 3089 /** 3090 * lpfc_exit: lpfc module removal routine. 3091 * 3092 * This routine is invoked when the lpfc module is removed from the kernel. 3093 * The special kernel macro module_exit() is used to indicate the role of 3094 * this routine to the kernel as lpfc module exit point. 3095 */ 3096 static void __exit 3097 lpfc_exit(void) 3098 { 3099 pci_unregister_driver(&lpfc_driver); 3100 fc_release_transport(lpfc_transport_template); 3101 if (lpfc_enable_npiv) 3102 fc_release_transport(lpfc_vport_transport_template); 3103 } 3104 3105 module_init(lpfc_init); 3106 module_exit(lpfc_exit); 3107 MODULE_LICENSE("GPL"); 3108 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 3109 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 3110 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 3111