lpfc_init.c revision 63e801ce685d151c5faca8f491adc2ad2e732259
1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2010 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#include <linux/aer.h> 32#include <linux/slab.h> 33 34#include <scsi/scsi.h> 35#include <scsi/scsi_device.h> 36#include <scsi/scsi_host.h> 37#include <scsi/scsi_transport_fc.h> 38 39#include "lpfc_hw4.h" 40#include "lpfc_hw.h" 41#include "lpfc_sli.h" 42#include "lpfc_sli4.h" 43#include "lpfc_nl.h" 44#include "lpfc_disc.h" 45#include "lpfc_scsi.h" 46#include "lpfc.h" 47#include "lpfc_logmsg.h" 48#include "lpfc_crtn.h" 49#include "lpfc_vport.h" 50#include "lpfc_version.h" 51 52char *_dump_buf_data; 53unsigned long _dump_buf_data_order; 54char *_dump_buf_dif; 55unsigned long _dump_buf_dif_order; 56spinlock_t _dump_buf_lock; 57 58static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 59static int lpfc_post_rcv_buf(struct lpfc_hba *); 60static int lpfc_sli4_queue_create(struct lpfc_hba *); 61static void lpfc_sli4_queue_destroy(struct lpfc_hba *); 62static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 63static int lpfc_setup_endian_order(struct lpfc_hba *); 64static int lpfc_sli4_read_config(struct lpfc_hba *); 65static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 66static void lpfc_free_sgl_list(struct lpfc_hba *); 67static int lpfc_init_sgl_list(struct lpfc_hba *); 68static int lpfc_init_active_sgl_array(struct lpfc_hba *); 69static void lpfc_free_active_sgl(struct lpfc_hba *); 70static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 71static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 72static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 73static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 74static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 75 76static struct scsi_transport_template *lpfc_transport_template = NULL; 77static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 78static DEFINE_IDR(lpfc_hba_index); 79 80/** 81 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 82 * @phba: pointer to lpfc hba data structure. 83 * 84 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 85 * mailbox command. It retrieves the revision information from the HBA and 86 * collects the Vital Product Data (VPD) about the HBA for preparing the 87 * configuration of the HBA. 88 * 89 * Return codes: 90 * 0 - success. 91 * -ERESTART - requests the SLI layer to reset the HBA and try again. 92 * Any other value - indicates an error. 93 **/ 94int 95lpfc_config_port_prep(struct lpfc_hba *phba) 96{ 97 lpfc_vpd_t *vp = &phba->vpd; 98 int i = 0, rc; 99 LPFC_MBOXQ_t *pmb; 100 MAILBOX_t *mb; 101 char *lpfc_vpd_data = NULL; 102 uint16_t offset = 0; 103 static char licensed[56] = 104 "key unlock for use with gnu public licensed code only\0"; 105 static int init_key = 1; 106 107 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 108 if (!pmb) { 109 phba->link_state = LPFC_HBA_ERROR; 110 return -ENOMEM; 111 } 112 113 mb = &pmb->u.mb; 114 phba->link_state = LPFC_INIT_MBX_CMDS; 115 116 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 117 if (init_key) { 118 uint32_t *ptext = (uint32_t *) licensed; 119 120 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 121 *ptext = cpu_to_be32(*ptext); 122 init_key = 0; 123 } 124 125 lpfc_read_nv(phba, pmb); 126 memset((char*)mb->un.varRDnvp.rsvd3, 0, 127 sizeof (mb->un.varRDnvp.rsvd3)); 128 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 129 sizeof (licensed)); 130 131 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 132 133 if (rc != MBX_SUCCESS) { 134 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 135 "0324 Config Port initialization " 136 "error, mbxCmd x%x READ_NVPARM, " 137 "mbxStatus x%x\n", 138 mb->mbxCommand, mb->mbxStatus); 139 mempool_free(pmb, phba->mbox_mem_pool); 140 return -ERESTART; 141 } 142 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 143 sizeof(phba->wwnn)); 144 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 145 sizeof(phba->wwpn)); 146 } 147 148 phba->sli3_options = 0x0; 149 150 /* Setup and issue mailbox READ REV command */ 151 lpfc_read_rev(phba, pmb); 152 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 153 if (rc != MBX_SUCCESS) { 154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 155 "0439 Adapter failed to init, mbxCmd x%x " 156 "READ_REV, mbxStatus x%x\n", 157 mb->mbxCommand, mb->mbxStatus); 158 mempool_free( pmb, phba->mbox_mem_pool); 159 return -ERESTART; 160 } 161 162 163 /* 164 * The value of rr must be 1 since the driver set the cv field to 1. 165 * This setting requires the FW to set all revision fields. 166 */ 167 if (mb->un.varRdRev.rr == 0) { 168 vp->rev.rBit = 0; 169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 170 "0440 Adapter failed to init, READ_REV has " 171 "missing revision information.\n"); 172 mempool_free(pmb, phba->mbox_mem_pool); 173 return -ERESTART; 174 } 175 176 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 177 mempool_free(pmb, phba->mbox_mem_pool); 178 return -EINVAL; 179 } 180 181 /* Save information as VPD data */ 182 vp->rev.rBit = 1; 183 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 184 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 185 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 186 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 187 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 188 vp->rev.biuRev = mb->un.varRdRev.biuRev; 189 vp->rev.smRev = mb->un.varRdRev.smRev; 190 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 191 vp->rev.endecRev = mb->un.varRdRev.endecRev; 192 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 193 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 194 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 195 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 196 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 197 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 198 199 /* If the sli feature level is less then 9, we must 200 * tear down all RPIs and VPIs on link down if NPIV 201 * is enabled. 202 */ 203 if (vp->rev.feaLevelHigh < 9) 204 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 205 206 if (lpfc_is_LC_HBA(phba->pcidev->device)) 207 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 208 sizeof (phba->RandomData)); 209 210 /* Get adapter VPD information */ 211 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 212 if (!lpfc_vpd_data) 213 goto out_free_mbox; 214 215 do { 216 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 217 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 218 219 if (rc != MBX_SUCCESS) { 220 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 221 "0441 VPD not present on adapter, " 222 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 223 mb->mbxCommand, mb->mbxStatus); 224 mb->un.varDmp.word_cnt = 0; 225 } 226 /* dump mem may return a zero when finished or we got a 227 * mailbox error, either way we are done. 228 */ 229 if (mb->un.varDmp.word_cnt == 0) 230 break; 231 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 232 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 233 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 234 lpfc_vpd_data + offset, 235 mb->un.varDmp.word_cnt); 236 offset += mb->un.varDmp.word_cnt; 237 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 238 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 239 240 kfree(lpfc_vpd_data); 241out_free_mbox: 242 mempool_free(pmb, phba->mbox_mem_pool); 243 return 0; 244} 245 246/** 247 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 248 * @phba: pointer to lpfc hba data structure. 249 * @pmboxq: pointer to the driver internal queue element for mailbox command. 250 * 251 * This is the completion handler for driver's configuring asynchronous event 252 * mailbox command to the device. If the mailbox command returns successfully, 253 * it will set internal async event support flag to 1; otherwise, it will 254 * set internal async event support flag to 0. 255 **/ 256static void 257lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 258{ 259 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 260 phba->temp_sensor_support = 1; 261 else 262 phba->temp_sensor_support = 0; 263 mempool_free(pmboxq, phba->mbox_mem_pool); 264 return; 265} 266 267/** 268 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 269 * @phba: pointer to lpfc hba data structure. 270 * @pmboxq: pointer to the driver internal queue element for mailbox command. 271 * 272 * This is the completion handler for dump mailbox command for getting 273 * wake up parameters. When this command complete, the response contain 274 * Option rom version of the HBA. This function translate the version number 275 * into a human readable string and store it in OptionROMVersion. 276 **/ 277static void 278lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 279{ 280 struct prog_id *prg; 281 uint32_t prog_id_word; 282 char dist = ' '; 283 /* character array used for decoding dist type. */ 284 char dist_char[] = "nabx"; 285 286 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 287 mempool_free(pmboxq, phba->mbox_mem_pool); 288 return; 289 } 290 291 prg = (struct prog_id *) &prog_id_word; 292 293 /* word 7 contain option rom version */ 294 prog_id_word = pmboxq->u.mb.un.varWords[7]; 295 296 /* Decode the Option rom version word to a readable string */ 297 if (prg->dist < 4) 298 dist = dist_char[prg->dist]; 299 300 if ((prg->dist == 3) && (prg->num == 0)) 301 sprintf(phba->OptionROMVersion, "%d.%d%d", 302 prg->ver, prg->rev, prg->lev); 303 else 304 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 305 prg->ver, prg->rev, prg->lev, 306 dist, prg->num); 307 mempool_free(pmboxq, phba->mbox_mem_pool); 308 return; 309} 310 311/** 312 * lpfc_config_port_post - Perform lpfc initialization after config port 313 * @phba: pointer to lpfc hba data structure. 314 * 315 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 316 * command call. It performs all internal resource and state setups on the 317 * port: post IOCB buffers, enable appropriate host interrupt attentions, 318 * ELS ring timers, etc. 319 * 320 * Return codes 321 * 0 - success. 322 * Any other value - error. 323 **/ 324int 325lpfc_config_port_post(struct lpfc_hba *phba) 326{ 327 struct lpfc_vport *vport = phba->pport; 328 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 329 LPFC_MBOXQ_t *pmb; 330 MAILBOX_t *mb; 331 struct lpfc_dmabuf *mp; 332 struct lpfc_sli *psli = &phba->sli; 333 uint32_t status, timeout; 334 int i, j; 335 int rc; 336 337 spin_lock_irq(&phba->hbalock); 338 /* 339 * If the Config port completed correctly the HBA is not 340 * over heated any more. 341 */ 342 if (phba->over_temp_state == HBA_OVER_TEMP) 343 phba->over_temp_state = HBA_NORMAL_TEMP; 344 spin_unlock_irq(&phba->hbalock); 345 346 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 347 if (!pmb) { 348 phba->link_state = LPFC_HBA_ERROR; 349 return -ENOMEM; 350 } 351 mb = &pmb->u.mb; 352 353 /* Get login parameters for NID. */ 354 rc = lpfc_read_sparam(phba, pmb, 0); 355 if (rc) { 356 mempool_free(pmb, phba->mbox_mem_pool); 357 return -ENOMEM; 358 } 359 360 pmb->vport = vport; 361 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 362 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 363 "0448 Adapter failed init, mbxCmd x%x " 364 "READ_SPARM mbxStatus x%x\n", 365 mb->mbxCommand, mb->mbxStatus); 366 phba->link_state = LPFC_HBA_ERROR; 367 mp = (struct lpfc_dmabuf *) pmb->context1; 368 mempool_free(pmb, phba->mbox_mem_pool); 369 lpfc_mbuf_free(phba, mp->virt, mp->phys); 370 kfree(mp); 371 return -EIO; 372 } 373 374 mp = (struct lpfc_dmabuf *) pmb->context1; 375 376 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 377 lpfc_mbuf_free(phba, mp->virt, mp->phys); 378 kfree(mp); 379 pmb->context1 = NULL; 380 381 if (phba->cfg_soft_wwnn) 382 u64_to_wwn(phba->cfg_soft_wwnn, 383 vport->fc_sparam.nodeName.u.wwn); 384 if (phba->cfg_soft_wwpn) 385 u64_to_wwn(phba->cfg_soft_wwpn, 386 vport->fc_sparam.portName.u.wwn); 387 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 388 sizeof (struct lpfc_name)); 389 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 390 sizeof (struct lpfc_name)); 391 392 /* Update the fc_host data structures with new wwn. */ 393 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 394 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 395 fc_host_max_npiv_vports(shost) = phba->max_vpi; 396 397 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 398 /* This should be consolidated into parse_vpd ? - mr */ 399 if (phba->SerialNumber[0] == 0) { 400 uint8_t *outptr; 401 402 outptr = &vport->fc_nodename.u.s.IEEE[0]; 403 for (i = 0; i < 12; i++) { 404 status = *outptr++; 405 j = ((status & 0xf0) >> 4); 406 if (j <= 9) 407 phba->SerialNumber[i] = 408 (char)((uint8_t) 0x30 + (uint8_t) j); 409 else 410 phba->SerialNumber[i] = 411 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 412 i++; 413 j = (status & 0xf); 414 if (j <= 9) 415 phba->SerialNumber[i] = 416 (char)((uint8_t) 0x30 + (uint8_t) j); 417 else 418 phba->SerialNumber[i] = 419 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 420 } 421 } 422 423 lpfc_read_config(phba, pmb); 424 pmb->vport = vport; 425 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 426 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 427 "0453 Adapter failed to init, mbxCmd x%x " 428 "READ_CONFIG, mbxStatus x%x\n", 429 mb->mbxCommand, mb->mbxStatus); 430 phba->link_state = LPFC_HBA_ERROR; 431 mempool_free( pmb, phba->mbox_mem_pool); 432 return -EIO; 433 } 434 435 /* Check if the port is disabled */ 436 lpfc_sli_read_link_ste(phba); 437 438 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 439 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 440 phba->cfg_hba_queue_depth = 441 (mb->un.varRdConfig.max_xri + 1) - 442 lpfc_sli4_get_els_iocb_cnt(phba); 443 444 phba->lmt = mb->un.varRdConfig.lmt; 445 446 /* Get the default values for Model Name and Description */ 447 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 448 449 if ((phba->cfg_link_speed > LINK_SPEED_10G) 450 || ((phba->cfg_link_speed == LINK_SPEED_1G) 451 && !(phba->lmt & LMT_1Gb)) 452 || ((phba->cfg_link_speed == LINK_SPEED_2G) 453 && !(phba->lmt & LMT_2Gb)) 454 || ((phba->cfg_link_speed == LINK_SPEED_4G) 455 && !(phba->lmt & LMT_4Gb)) 456 || ((phba->cfg_link_speed == LINK_SPEED_8G) 457 && !(phba->lmt & LMT_8Gb)) 458 || ((phba->cfg_link_speed == LINK_SPEED_10G) 459 && !(phba->lmt & LMT_10Gb))) { 460 /* Reset link speed to auto */ 461 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT, 462 "1302 Invalid speed for this board: " 463 "Reset link speed to auto: x%x\n", 464 phba->cfg_link_speed); 465 phba->cfg_link_speed = LINK_SPEED_AUTO; 466 } 467 468 phba->link_state = LPFC_LINK_DOWN; 469 470 /* Only process IOCBs on ELS ring till hba_state is READY */ 471 if (psli->ring[psli->extra_ring].cmdringaddr) 472 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 473 if (psli->ring[psli->fcp_ring].cmdringaddr) 474 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 475 if (psli->ring[psli->next_ring].cmdringaddr) 476 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 477 478 /* Post receive buffers for desired rings */ 479 if (phba->sli_rev != 3) 480 lpfc_post_rcv_buf(phba); 481 482 /* 483 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 484 */ 485 if (phba->intr_type == MSIX) { 486 rc = lpfc_config_msi(phba, pmb); 487 if (rc) { 488 mempool_free(pmb, phba->mbox_mem_pool); 489 return -EIO; 490 } 491 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 492 if (rc != MBX_SUCCESS) { 493 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 494 "0352 Config MSI mailbox command " 495 "failed, mbxCmd x%x, mbxStatus x%x\n", 496 pmb->u.mb.mbxCommand, 497 pmb->u.mb.mbxStatus); 498 mempool_free(pmb, phba->mbox_mem_pool); 499 return -EIO; 500 } 501 } 502 503 spin_lock_irq(&phba->hbalock); 504 /* Initialize ERATT handling flag */ 505 phba->hba_flag &= ~HBA_ERATT_HANDLED; 506 507 /* Enable appropriate host interrupts */ 508 status = readl(phba->HCregaddr); 509 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 510 if (psli->num_rings > 0) 511 status |= HC_R0INT_ENA; 512 if (psli->num_rings > 1) 513 status |= HC_R1INT_ENA; 514 if (psli->num_rings > 2) 515 status |= HC_R2INT_ENA; 516 if (psli->num_rings > 3) 517 status |= HC_R3INT_ENA; 518 519 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 520 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 521 status &= ~(HC_R0INT_ENA); 522 523 writel(status, phba->HCregaddr); 524 readl(phba->HCregaddr); /* flush */ 525 spin_unlock_irq(&phba->hbalock); 526 527 /* Set up ring-0 (ELS) timer */ 528 timeout = phba->fc_ratov * 2; 529 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 530 /* Set up heart beat (HB) timer */ 531 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 532 phba->hb_outstanding = 0; 533 phba->last_completion_time = jiffies; 534 /* Set up error attention (ERATT) polling timer */ 535 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 536 537 if (phba->hba_flag & LINK_DISABLED) { 538 lpfc_printf_log(phba, 539 KERN_ERR, LOG_INIT, 540 "2598 Adapter Link is disabled.\n"); 541 lpfc_down_link(phba, pmb); 542 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 543 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 544 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 545 lpfc_printf_log(phba, 546 KERN_ERR, LOG_INIT, 547 "2599 Adapter failed to issue DOWN_LINK" 548 " mbox command rc 0x%x\n", rc); 549 550 mempool_free(pmb, phba->mbox_mem_pool); 551 return -EIO; 552 } 553 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 554 lpfc_init_link(phba, pmb, phba->cfg_topology, 555 phba->cfg_link_speed); 556 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 557 lpfc_set_loopback_flag(phba); 558 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 559 if (rc != MBX_SUCCESS) { 560 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 561 "0454 Adapter failed to init, mbxCmd x%x " 562 "INIT_LINK, mbxStatus x%x\n", 563 mb->mbxCommand, mb->mbxStatus); 564 565 /* Clear all interrupt enable conditions */ 566 writel(0, phba->HCregaddr); 567 readl(phba->HCregaddr); /* flush */ 568 /* Clear all pending interrupts */ 569 writel(0xffffffff, phba->HAregaddr); 570 readl(phba->HAregaddr); /* flush */ 571 572 phba->link_state = LPFC_HBA_ERROR; 573 if (rc != MBX_BUSY) 574 mempool_free(pmb, phba->mbox_mem_pool); 575 return -EIO; 576 } 577 } 578 /* MBOX buffer will be freed in mbox compl */ 579 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 580 if (!pmb) { 581 phba->link_state = LPFC_HBA_ERROR; 582 return -ENOMEM; 583 } 584 585 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 586 pmb->mbox_cmpl = lpfc_config_async_cmpl; 587 pmb->vport = phba->pport; 588 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 589 590 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 591 lpfc_printf_log(phba, 592 KERN_ERR, 593 LOG_INIT, 594 "0456 Adapter failed to issue " 595 "ASYNCEVT_ENABLE mbox status x%x\n", 596 rc); 597 mempool_free(pmb, phba->mbox_mem_pool); 598 } 599 600 /* Get Option rom version */ 601 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 602 if (!pmb) { 603 phba->link_state = LPFC_HBA_ERROR; 604 return -ENOMEM; 605 } 606 607 lpfc_dump_wakeup_param(phba, pmb); 608 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 609 pmb->vport = phba->pport; 610 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 611 612 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 613 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 614 "to get Option ROM version status x%x\n", rc); 615 mempool_free(pmb, phba->mbox_mem_pool); 616 } 617 618 return 0; 619} 620 621/** 622 * lpfc_hba_init_link - Initialize the FC link 623 * @phba: pointer to lpfc hba data structure. 624 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 625 * 626 * This routine will issue the INIT_LINK mailbox command call. 627 * It is available to other drivers through the lpfc_hba data 628 * structure for use as a delayed link up mechanism with the 629 * module parameter lpfc_suppress_link_up. 630 * 631 * Return code 632 * 0 - success 633 * Any other value - error 634 **/ 635int 636lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 637{ 638 struct lpfc_vport *vport = phba->pport; 639 LPFC_MBOXQ_t *pmb; 640 MAILBOX_t *mb; 641 int rc; 642 643 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 644 if (!pmb) { 645 phba->link_state = LPFC_HBA_ERROR; 646 return -ENOMEM; 647 } 648 mb = &pmb->u.mb; 649 pmb->vport = vport; 650 651 lpfc_init_link(phba, pmb, phba->cfg_topology, 652 phba->cfg_link_speed); 653 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 654 lpfc_set_loopback_flag(phba); 655 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 656 if (rc != MBX_SUCCESS) { 657 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 658 "0498 Adapter failed to init, mbxCmd x%x " 659 "INIT_LINK, mbxStatus x%x\n", 660 mb->mbxCommand, mb->mbxStatus); 661 /* Clear all interrupt enable conditions */ 662 writel(0, phba->HCregaddr); 663 readl(phba->HCregaddr); /* flush */ 664 /* Clear all pending interrupts */ 665 writel(0xffffffff, phba->HAregaddr); 666 readl(phba->HAregaddr); /* flush */ 667 phba->link_state = LPFC_HBA_ERROR; 668 if (rc != MBX_BUSY || flag == MBX_POLL) 669 mempool_free(pmb, phba->mbox_mem_pool); 670 return -EIO; 671 } 672 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 673 if (flag == MBX_POLL) 674 mempool_free(pmb, phba->mbox_mem_pool); 675 676 return 0; 677} 678 679/** 680 * lpfc_hba_down_link - this routine downs the FC link 681 * @phba: pointer to lpfc hba data structure. 682 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 683 * 684 * This routine will issue the DOWN_LINK mailbox command call. 685 * It is available to other drivers through the lpfc_hba data 686 * structure for use to stop the link. 687 * 688 * Return code 689 * 0 - success 690 * Any other value - error 691 **/ 692int 693lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 694{ 695 LPFC_MBOXQ_t *pmb; 696 int rc; 697 698 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 699 if (!pmb) { 700 phba->link_state = LPFC_HBA_ERROR; 701 return -ENOMEM; 702 } 703 704 lpfc_printf_log(phba, 705 KERN_ERR, LOG_INIT, 706 "0491 Adapter Link is disabled.\n"); 707 lpfc_down_link(phba, pmb); 708 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 709 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 710 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 711 lpfc_printf_log(phba, 712 KERN_ERR, LOG_INIT, 713 "2522 Adapter failed to issue DOWN_LINK" 714 " mbox command rc 0x%x\n", rc); 715 716 mempool_free(pmb, phba->mbox_mem_pool); 717 return -EIO; 718 } 719 if (flag == MBX_POLL) 720 mempool_free(pmb, phba->mbox_mem_pool); 721 722 return 0; 723} 724 725/** 726 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 727 * @phba: pointer to lpfc HBA data structure. 728 * 729 * This routine will do LPFC uninitialization before the HBA is reset when 730 * bringing down the SLI Layer. 731 * 732 * Return codes 733 * 0 - success. 734 * Any other value - error. 735 **/ 736int 737lpfc_hba_down_prep(struct lpfc_hba *phba) 738{ 739 struct lpfc_vport **vports; 740 int i; 741 742 if (phba->sli_rev <= LPFC_SLI_REV3) { 743 /* Disable interrupts */ 744 writel(0, phba->HCregaddr); 745 readl(phba->HCregaddr); /* flush */ 746 } 747 748 if (phba->pport->load_flag & FC_UNLOADING) 749 lpfc_cleanup_discovery_resources(phba->pport); 750 else { 751 vports = lpfc_create_vport_work_array(phba); 752 if (vports != NULL) 753 for (i = 0; i <= phba->max_vports && 754 vports[i] != NULL; i++) 755 lpfc_cleanup_discovery_resources(vports[i]); 756 lpfc_destroy_vport_work_array(phba, vports); 757 } 758 return 0; 759} 760 761/** 762 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 763 * @phba: pointer to lpfc HBA data structure. 764 * 765 * This routine will do uninitialization after the HBA is reset when bring 766 * down the SLI Layer. 767 * 768 * Return codes 769 * 0 - success. 770 * Any other value - error. 771 **/ 772static int 773lpfc_hba_down_post_s3(struct lpfc_hba *phba) 774{ 775 struct lpfc_sli *psli = &phba->sli; 776 struct lpfc_sli_ring *pring; 777 struct lpfc_dmabuf *mp, *next_mp; 778 LIST_HEAD(completions); 779 int i; 780 781 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 782 lpfc_sli_hbqbuf_free_all(phba); 783 else { 784 /* Cleanup preposted buffers on the ELS ring */ 785 pring = &psli->ring[LPFC_ELS_RING]; 786 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 787 list_del(&mp->list); 788 pring->postbufq_cnt--; 789 lpfc_mbuf_free(phba, mp->virt, mp->phys); 790 kfree(mp); 791 } 792 } 793 794 spin_lock_irq(&phba->hbalock); 795 for (i = 0; i < psli->num_rings; i++) { 796 pring = &psli->ring[i]; 797 798 /* At this point in time the HBA is either reset or DOA. Either 799 * way, nothing should be on txcmplq as it will NEVER complete. 800 */ 801 list_splice_init(&pring->txcmplq, &completions); 802 pring->txcmplq_cnt = 0; 803 spin_unlock_irq(&phba->hbalock); 804 805 /* Cancel all the IOCBs from the completions list */ 806 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 807 IOERR_SLI_ABORTED); 808 809 lpfc_sli_abort_iocb_ring(phba, pring); 810 spin_lock_irq(&phba->hbalock); 811 } 812 spin_unlock_irq(&phba->hbalock); 813 814 return 0; 815} 816 817/** 818 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 819 * @phba: pointer to lpfc HBA data structure. 820 * 821 * This routine will do uninitialization after the HBA is reset when bring 822 * down the SLI Layer. 823 * 824 * Return codes 825 * 0 - success. 826 * Any other value - error. 827 **/ 828static int 829lpfc_hba_down_post_s4(struct lpfc_hba *phba) 830{ 831 struct lpfc_scsi_buf *psb, *psb_next; 832 LIST_HEAD(aborts); 833 int ret; 834 unsigned long iflag = 0; 835 struct lpfc_sglq *sglq_entry = NULL; 836 837 ret = lpfc_hba_down_post_s3(phba); 838 if (ret) 839 return ret; 840 /* At this point in time the HBA is either reset or DOA. Either 841 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 842 * on the lpfc_sgl_list so that it can either be freed if the 843 * driver is unloading or reposted if the driver is restarting 844 * the port. 845 */ 846 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 847 /* scsl_buf_list */ 848 /* abts_sgl_list_lock required because worker thread uses this 849 * list. 850 */ 851 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 852 list_for_each_entry(sglq_entry, 853 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 854 sglq_entry->state = SGL_FREED; 855 856 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 857 &phba->sli4_hba.lpfc_sgl_list); 858 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 859 /* abts_scsi_buf_list_lock required because worker thread uses this 860 * list. 861 */ 862 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 863 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 864 &aborts); 865 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 866 spin_unlock_irq(&phba->hbalock); 867 868 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 869 psb->pCmd = NULL; 870 psb->status = IOSTAT_SUCCESS; 871 } 872 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 873 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 874 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 875 return 0; 876} 877 878/** 879 * lpfc_hba_down_post - Wrapper func for hba down post routine 880 * @phba: pointer to lpfc HBA data structure. 881 * 882 * This routine wraps the actual SLI3 or SLI4 routine for performing 883 * uninitialization after the HBA is reset when bring down the SLI Layer. 884 * 885 * Return codes 886 * 0 - success. 887 * Any other value - error. 888 **/ 889int 890lpfc_hba_down_post(struct lpfc_hba *phba) 891{ 892 return (*phba->lpfc_hba_down_post)(phba); 893} 894 895/** 896 * lpfc_hb_timeout - The HBA-timer timeout handler 897 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 898 * 899 * This is the HBA-timer timeout handler registered to the lpfc driver. When 900 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 901 * work-port-events bitmap and the worker thread is notified. This timeout 902 * event will be used by the worker thread to invoke the actual timeout 903 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 904 * be performed in the timeout handler and the HBA timeout event bit shall 905 * be cleared by the worker thread after it has taken the event bitmap out. 906 **/ 907static void 908lpfc_hb_timeout(unsigned long ptr) 909{ 910 struct lpfc_hba *phba; 911 uint32_t tmo_posted; 912 unsigned long iflag; 913 914 phba = (struct lpfc_hba *)ptr; 915 916 /* Check for heart beat timeout conditions */ 917 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 918 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 919 if (!tmo_posted) 920 phba->pport->work_port_events |= WORKER_HB_TMO; 921 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 922 923 /* Tell the worker thread there is work to do */ 924 if (!tmo_posted) 925 lpfc_worker_wake_up(phba); 926 return; 927} 928 929/** 930 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 931 * @phba: pointer to lpfc hba data structure. 932 * @pmboxq: pointer to the driver internal queue element for mailbox command. 933 * 934 * This is the callback function to the lpfc heart-beat mailbox command. 935 * If configured, the lpfc driver issues the heart-beat mailbox command to 936 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 937 * heart-beat mailbox command is issued, the driver shall set up heart-beat 938 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 939 * heart-beat outstanding state. Once the mailbox command comes back and 940 * no error conditions detected, the heart-beat mailbox command timer is 941 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 942 * state is cleared for the next heart-beat. If the timer expired with the 943 * heart-beat outstanding state set, the driver will put the HBA offline. 944 **/ 945static void 946lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 947{ 948 unsigned long drvr_flag; 949 950 spin_lock_irqsave(&phba->hbalock, drvr_flag); 951 phba->hb_outstanding = 0; 952 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 953 954 /* Check and reset heart-beat timer is necessary */ 955 mempool_free(pmboxq, phba->mbox_mem_pool); 956 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 957 !(phba->link_state == LPFC_HBA_ERROR) && 958 !(phba->pport->load_flag & FC_UNLOADING)) 959 mod_timer(&phba->hb_tmofunc, 960 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 961 return; 962} 963 964/** 965 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 966 * @phba: pointer to lpfc hba data structure. 967 * 968 * This is the actual HBA-timer timeout handler to be invoked by the worker 969 * thread whenever the HBA timer fired and HBA-timeout event posted. This 970 * handler performs any periodic operations needed for the device. If such 971 * periodic event has already been attended to either in the interrupt handler 972 * or by processing slow-ring or fast-ring events within the HBA-timer 973 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 974 * the timer for the next timeout period. If lpfc heart-beat mailbox command 975 * is configured and there is no heart-beat mailbox command outstanding, a 976 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 977 * has been a heart-beat mailbox command outstanding, the HBA shall be put 978 * to offline. 979 **/ 980void 981lpfc_hb_timeout_handler(struct lpfc_hba *phba) 982{ 983 struct lpfc_vport **vports; 984 LPFC_MBOXQ_t *pmboxq; 985 struct lpfc_dmabuf *buf_ptr; 986 int retval, i; 987 struct lpfc_sli *psli = &phba->sli; 988 LIST_HEAD(completions); 989 990 vports = lpfc_create_vport_work_array(phba); 991 if (vports != NULL) 992 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 993 lpfc_rcv_seq_check_edtov(vports[i]); 994 lpfc_destroy_vport_work_array(phba, vports); 995 996 if ((phba->link_state == LPFC_HBA_ERROR) || 997 (phba->pport->load_flag & FC_UNLOADING) || 998 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 999 return; 1000 1001 spin_lock_irq(&phba->pport->work_port_lock); 1002 1003 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 1004 jiffies)) { 1005 spin_unlock_irq(&phba->pport->work_port_lock); 1006 if (!phba->hb_outstanding) 1007 mod_timer(&phba->hb_tmofunc, 1008 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1009 else 1010 mod_timer(&phba->hb_tmofunc, 1011 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1012 return; 1013 } 1014 spin_unlock_irq(&phba->pport->work_port_lock); 1015 1016 if (phba->elsbuf_cnt && 1017 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1018 spin_lock_irq(&phba->hbalock); 1019 list_splice_init(&phba->elsbuf, &completions); 1020 phba->elsbuf_cnt = 0; 1021 phba->elsbuf_prev_cnt = 0; 1022 spin_unlock_irq(&phba->hbalock); 1023 1024 while (!list_empty(&completions)) { 1025 list_remove_head(&completions, buf_ptr, 1026 struct lpfc_dmabuf, list); 1027 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1028 kfree(buf_ptr); 1029 } 1030 } 1031 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1032 1033 /* If there is no heart beat outstanding, issue a heartbeat command */ 1034 if (phba->cfg_enable_hba_heartbeat) { 1035 if (!phba->hb_outstanding) { 1036 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1037 (list_empty(&psli->mboxq))) { 1038 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1039 GFP_KERNEL); 1040 if (!pmboxq) { 1041 mod_timer(&phba->hb_tmofunc, 1042 jiffies + 1043 HZ * LPFC_HB_MBOX_INTERVAL); 1044 return; 1045 } 1046 1047 lpfc_heart_beat(phba, pmboxq); 1048 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1049 pmboxq->vport = phba->pport; 1050 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1051 MBX_NOWAIT); 1052 1053 if (retval != MBX_BUSY && 1054 retval != MBX_SUCCESS) { 1055 mempool_free(pmboxq, 1056 phba->mbox_mem_pool); 1057 mod_timer(&phba->hb_tmofunc, 1058 jiffies + 1059 HZ * LPFC_HB_MBOX_INTERVAL); 1060 return; 1061 } 1062 phba->skipped_hb = 0; 1063 phba->hb_outstanding = 1; 1064 } else if (time_before_eq(phba->last_completion_time, 1065 phba->skipped_hb)) { 1066 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1067 "2857 Last completion time not " 1068 " updated in %d ms\n", 1069 jiffies_to_msecs(jiffies 1070 - phba->last_completion_time)); 1071 } else 1072 phba->skipped_hb = jiffies; 1073 1074 mod_timer(&phba->hb_tmofunc, 1075 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1076 return; 1077 } else { 1078 /* 1079 * If heart beat timeout called with hb_outstanding set 1080 * we need to give the hb mailbox cmd a chance to 1081 * complete or TMO. 1082 */ 1083 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1084 "0459 Adapter heartbeat still out" 1085 "standing:last compl time was %d ms.\n", 1086 jiffies_to_msecs(jiffies 1087 - phba->last_completion_time)); 1088 mod_timer(&phba->hb_tmofunc, 1089 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1090 } 1091 } 1092} 1093 1094/** 1095 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1096 * @phba: pointer to lpfc hba data structure. 1097 * 1098 * This routine is called to bring the HBA offline when HBA hardware error 1099 * other than Port Error 6 has been detected. 1100 **/ 1101static void 1102lpfc_offline_eratt(struct lpfc_hba *phba) 1103{ 1104 struct lpfc_sli *psli = &phba->sli; 1105 1106 spin_lock_irq(&phba->hbalock); 1107 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1108 spin_unlock_irq(&phba->hbalock); 1109 lpfc_offline_prep(phba); 1110 1111 lpfc_offline(phba); 1112 lpfc_reset_barrier(phba); 1113 spin_lock_irq(&phba->hbalock); 1114 lpfc_sli_brdreset(phba); 1115 spin_unlock_irq(&phba->hbalock); 1116 lpfc_hba_down_post(phba); 1117 lpfc_sli_brdready(phba, HS_MBRDY); 1118 lpfc_unblock_mgmt_io(phba); 1119 phba->link_state = LPFC_HBA_ERROR; 1120 return; 1121} 1122 1123/** 1124 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1125 * @phba: pointer to lpfc hba data structure. 1126 * 1127 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1128 * other than Port Error 6 has been detected. 1129 **/ 1130static void 1131lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1132{ 1133 lpfc_offline_prep(phba); 1134 lpfc_offline(phba); 1135 lpfc_sli4_brdreset(phba); 1136 lpfc_hba_down_post(phba); 1137 lpfc_sli4_post_status_check(phba); 1138 lpfc_unblock_mgmt_io(phba); 1139 phba->link_state = LPFC_HBA_ERROR; 1140} 1141 1142/** 1143 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1144 * @phba: pointer to lpfc hba data structure. 1145 * 1146 * This routine is invoked to handle the deferred HBA hardware error 1147 * conditions. This type of error is indicated by HBA by setting ER1 1148 * and another ER bit in the host status register. The driver will 1149 * wait until the ER1 bit clears before handling the error condition. 1150 **/ 1151static void 1152lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1153{ 1154 uint32_t old_host_status = phba->work_hs; 1155 struct lpfc_sli_ring *pring; 1156 struct lpfc_sli *psli = &phba->sli; 1157 1158 /* If the pci channel is offline, ignore possible errors, 1159 * since we cannot communicate with the pci card anyway. 1160 */ 1161 if (pci_channel_offline(phba->pcidev)) { 1162 spin_lock_irq(&phba->hbalock); 1163 phba->hba_flag &= ~DEFER_ERATT; 1164 spin_unlock_irq(&phba->hbalock); 1165 return; 1166 } 1167 1168 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1169 "0479 Deferred Adapter Hardware Error " 1170 "Data: x%x x%x x%x\n", 1171 phba->work_hs, 1172 phba->work_status[0], phba->work_status[1]); 1173 1174 spin_lock_irq(&phba->hbalock); 1175 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1176 spin_unlock_irq(&phba->hbalock); 1177 1178 1179 /* 1180 * Firmware stops when it triggred erratt. That could cause the I/Os 1181 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1182 * SCSI layer retry it after re-establishing link. 1183 */ 1184 pring = &psli->ring[psli->fcp_ring]; 1185 lpfc_sli_abort_iocb_ring(phba, pring); 1186 1187 /* 1188 * There was a firmware error. Take the hba offline and then 1189 * attempt to restart it. 1190 */ 1191 lpfc_offline_prep(phba); 1192 lpfc_offline(phba); 1193 1194 /* Wait for the ER1 bit to clear.*/ 1195 while (phba->work_hs & HS_FFER1) { 1196 msleep(100); 1197 phba->work_hs = readl(phba->HSregaddr); 1198 /* If driver is unloading let the worker thread continue */ 1199 if (phba->pport->load_flag & FC_UNLOADING) { 1200 phba->work_hs = 0; 1201 break; 1202 } 1203 } 1204 1205 /* 1206 * This is to ptrotect against a race condition in which 1207 * first write to the host attention register clear the 1208 * host status register. 1209 */ 1210 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1211 phba->work_hs = old_host_status & ~HS_FFER1; 1212 1213 spin_lock_irq(&phba->hbalock); 1214 phba->hba_flag &= ~DEFER_ERATT; 1215 spin_unlock_irq(&phba->hbalock); 1216 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1217 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1218} 1219 1220static void 1221lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1222{ 1223 struct lpfc_board_event_header board_event; 1224 struct Scsi_Host *shost; 1225 1226 board_event.event_type = FC_REG_BOARD_EVENT; 1227 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1228 shost = lpfc_shost_from_vport(phba->pport); 1229 fc_host_post_vendor_event(shost, fc_get_event_number(), 1230 sizeof(board_event), 1231 (char *) &board_event, 1232 LPFC_NL_VENDOR_ID); 1233} 1234 1235/** 1236 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1237 * @phba: pointer to lpfc hba data structure. 1238 * 1239 * This routine is invoked to handle the following HBA hardware error 1240 * conditions: 1241 * 1 - HBA error attention interrupt 1242 * 2 - DMA ring index out of range 1243 * 3 - Mailbox command came back as unknown 1244 **/ 1245static void 1246lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1247{ 1248 struct lpfc_vport *vport = phba->pport; 1249 struct lpfc_sli *psli = &phba->sli; 1250 struct lpfc_sli_ring *pring; 1251 uint32_t event_data; 1252 unsigned long temperature; 1253 struct temp_event temp_event_data; 1254 struct Scsi_Host *shost; 1255 1256 /* If the pci channel is offline, ignore possible errors, 1257 * since we cannot communicate with the pci card anyway. 1258 */ 1259 if (pci_channel_offline(phba->pcidev)) { 1260 spin_lock_irq(&phba->hbalock); 1261 phba->hba_flag &= ~DEFER_ERATT; 1262 spin_unlock_irq(&phba->hbalock); 1263 return; 1264 } 1265 1266 /* If resets are disabled then leave the HBA alone and return */ 1267 if (!phba->cfg_enable_hba_reset) 1268 return; 1269 1270 /* Send an internal error event to mgmt application */ 1271 lpfc_board_errevt_to_mgmt(phba); 1272 1273 if (phba->hba_flag & DEFER_ERATT) 1274 lpfc_handle_deferred_eratt(phba); 1275 1276 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1277 if (phba->work_hs & HS_FFER6) 1278 /* Re-establishing Link */ 1279 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1280 "1301 Re-establishing Link " 1281 "Data: x%x x%x x%x\n", 1282 phba->work_hs, phba->work_status[0], 1283 phba->work_status[1]); 1284 if (phba->work_hs & HS_FFER8) 1285 /* Device Zeroization */ 1286 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1287 "2861 Host Authentication device " 1288 "zeroization Data:x%x x%x x%x\n", 1289 phba->work_hs, phba->work_status[0], 1290 phba->work_status[1]); 1291 1292 spin_lock_irq(&phba->hbalock); 1293 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1294 spin_unlock_irq(&phba->hbalock); 1295 1296 /* 1297 * Firmware stops when it triggled erratt with HS_FFER6. 1298 * That could cause the I/Os dropped by the firmware. 1299 * Error iocb (I/O) on txcmplq and let the SCSI layer 1300 * retry it after re-establishing link. 1301 */ 1302 pring = &psli->ring[psli->fcp_ring]; 1303 lpfc_sli_abort_iocb_ring(phba, pring); 1304 1305 /* 1306 * There was a firmware error. Take the hba offline and then 1307 * attempt to restart it. 1308 */ 1309 lpfc_offline_prep(phba); 1310 lpfc_offline(phba); 1311 lpfc_sli_brdrestart(phba); 1312 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1313 lpfc_unblock_mgmt_io(phba); 1314 return; 1315 } 1316 lpfc_unblock_mgmt_io(phba); 1317 } else if (phba->work_hs & HS_CRIT_TEMP) { 1318 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1319 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1320 temp_event_data.event_code = LPFC_CRIT_TEMP; 1321 temp_event_data.data = (uint32_t)temperature; 1322 1323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1324 "0406 Adapter maximum temperature exceeded " 1325 "(%ld), taking this port offline " 1326 "Data: x%x x%x x%x\n", 1327 temperature, phba->work_hs, 1328 phba->work_status[0], phba->work_status[1]); 1329 1330 shost = lpfc_shost_from_vport(phba->pport); 1331 fc_host_post_vendor_event(shost, fc_get_event_number(), 1332 sizeof(temp_event_data), 1333 (char *) &temp_event_data, 1334 SCSI_NL_VID_TYPE_PCI 1335 | PCI_VENDOR_ID_EMULEX); 1336 1337 spin_lock_irq(&phba->hbalock); 1338 phba->over_temp_state = HBA_OVER_TEMP; 1339 spin_unlock_irq(&phba->hbalock); 1340 lpfc_offline_eratt(phba); 1341 1342 } else { 1343 /* The if clause above forces this code path when the status 1344 * failure is a value other than FFER6. Do not call the offline 1345 * twice. This is the adapter hardware error path. 1346 */ 1347 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1348 "0457 Adapter Hardware Error " 1349 "Data: x%x x%x x%x\n", 1350 phba->work_hs, 1351 phba->work_status[0], phba->work_status[1]); 1352 1353 event_data = FC_REG_DUMP_EVENT; 1354 shost = lpfc_shost_from_vport(vport); 1355 fc_host_post_vendor_event(shost, fc_get_event_number(), 1356 sizeof(event_data), (char *) &event_data, 1357 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1358 1359 lpfc_offline_eratt(phba); 1360 } 1361 return; 1362} 1363 1364/** 1365 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1366 * @phba: pointer to lpfc hba data structure. 1367 * 1368 * This routine is invoked to handle the SLI4 HBA hardware error attention 1369 * conditions. 1370 **/ 1371static void 1372lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1373{ 1374 struct lpfc_vport *vport = phba->pport; 1375 uint32_t event_data; 1376 struct Scsi_Host *shost; 1377 1378 /* If the pci channel is offline, ignore possible errors, since 1379 * we cannot communicate with the pci card anyway. 1380 */ 1381 if (pci_channel_offline(phba->pcidev)) 1382 return; 1383 /* If resets are disabled then leave the HBA alone and return */ 1384 if (!phba->cfg_enable_hba_reset) 1385 return; 1386 1387 /* Send an internal error event to mgmt application */ 1388 lpfc_board_errevt_to_mgmt(phba); 1389 1390 /* For now, the actual action for SLI4 device handling is not 1391 * specified yet, just treated it as adaptor hardware failure 1392 */ 1393 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1394 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n", 1395 phba->work_status[0], phba->work_status[1]); 1396 1397 event_data = FC_REG_DUMP_EVENT; 1398 shost = lpfc_shost_from_vport(vport); 1399 fc_host_post_vendor_event(shost, fc_get_event_number(), 1400 sizeof(event_data), (char *) &event_data, 1401 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1402 1403 lpfc_sli4_offline_eratt(phba); 1404} 1405 1406/** 1407 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1408 * @phba: pointer to lpfc HBA data structure. 1409 * 1410 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1411 * routine from the API jump table function pointer from the lpfc_hba struct. 1412 * 1413 * Return codes 1414 * 0 - success. 1415 * Any other value - error. 1416 **/ 1417void 1418lpfc_handle_eratt(struct lpfc_hba *phba) 1419{ 1420 (*phba->lpfc_handle_eratt)(phba); 1421} 1422 1423/** 1424 * lpfc_handle_latt - The HBA link event handler 1425 * @phba: pointer to lpfc hba data structure. 1426 * 1427 * This routine is invoked from the worker thread to handle a HBA host 1428 * attention link event. 1429 **/ 1430void 1431lpfc_handle_latt(struct lpfc_hba *phba) 1432{ 1433 struct lpfc_vport *vport = phba->pport; 1434 struct lpfc_sli *psli = &phba->sli; 1435 LPFC_MBOXQ_t *pmb; 1436 volatile uint32_t control; 1437 struct lpfc_dmabuf *mp; 1438 int rc = 0; 1439 1440 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1441 if (!pmb) { 1442 rc = 1; 1443 goto lpfc_handle_latt_err_exit; 1444 } 1445 1446 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1447 if (!mp) { 1448 rc = 2; 1449 goto lpfc_handle_latt_free_pmb; 1450 } 1451 1452 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1453 if (!mp->virt) { 1454 rc = 3; 1455 goto lpfc_handle_latt_free_mp; 1456 } 1457 1458 /* Cleanup any outstanding ELS commands */ 1459 lpfc_els_flush_all_cmd(phba); 1460 1461 psli->slistat.link_event++; 1462 lpfc_read_la(phba, pmb, mp); 1463 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 1464 pmb->vport = vport; 1465 /* Block ELS IOCBs until we have processed this mbox command */ 1466 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1467 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1468 if (rc == MBX_NOT_FINISHED) { 1469 rc = 4; 1470 goto lpfc_handle_latt_free_mbuf; 1471 } 1472 1473 /* Clear Link Attention in HA REG */ 1474 spin_lock_irq(&phba->hbalock); 1475 writel(HA_LATT, phba->HAregaddr); 1476 readl(phba->HAregaddr); /* flush */ 1477 spin_unlock_irq(&phba->hbalock); 1478 1479 return; 1480 1481lpfc_handle_latt_free_mbuf: 1482 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1483 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1484lpfc_handle_latt_free_mp: 1485 kfree(mp); 1486lpfc_handle_latt_free_pmb: 1487 mempool_free(pmb, phba->mbox_mem_pool); 1488lpfc_handle_latt_err_exit: 1489 /* Enable Link attention interrupts */ 1490 spin_lock_irq(&phba->hbalock); 1491 psli->sli_flag |= LPFC_PROCESS_LA; 1492 control = readl(phba->HCregaddr); 1493 control |= HC_LAINT_ENA; 1494 writel(control, phba->HCregaddr); 1495 readl(phba->HCregaddr); /* flush */ 1496 1497 /* Clear Link Attention in HA REG */ 1498 writel(HA_LATT, phba->HAregaddr); 1499 readl(phba->HAregaddr); /* flush */ 1500 spin_unlock_irq(&phba->hbalock); 1501 lpfc_linkdown(phba); 1502 phba->link_state = LPFC_HBA_ERROR; 1503 1504 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1505 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1506 1507 return; 1508} 1509 1510/** 1511 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1512 * @phba: pointer to lpfc hba data structure. 1513 * @vpd: pointer to the vital product data. 1514 * @len: length of the vital product data in bytes. 1515 * 1516 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1517 * an array of characters. In this routine, the ModelName, ProgramType, and 1518 * ModelDesc, etc. fields of the phba data structure will be populated. 1519 * 1520 * Return codes 1521 * 0 - pointer to the VPD passed in is NULL 1522 * 1 - success 1523 **/ 1524int 1525lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1526{ 1527 uint8_t lenlo, lenhi; 1528 int Length; 1529 int i, j; 1530 int finished = 0; 1531 int index = 0; 1532 1533 if (!vpd) 1534 return 0; 1535 1536 /* Vital Product */ 1537 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1538 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1539 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1540 (uint32_t) vpd[3]); 1541 while (!finished && (index < (len - 4))) { 1542 switch (vpd[index]) { 1543 case 0x82: 1544 case 0x91: 1545 index += 1; 1546 lenlo = vpd[index]; 1547 index += 1; 1548 lenhi = vpd[index]; 1549 index += 1; 1550 i = ((((unsigned short)lenhi) << 8) + lenlo); 1551 index += i; 1552 break; 1553 case 0x90: 1554 index += 1; 1555 lenlo = vpd[index]; 1556 index += 1; 1557 lenhi = vpd[index]; 1558 index += 1; 1559 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1560 if (Length > len - index) 1561 Length = len - index; 1562 while (Length > 0) { 1563 /* Look for Serial Number */ 1564 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1565 index += 2; 1566 i = vpd[index]; 1567 index += 1; 1568 j = 0; 1569 Length -= (3+i); 1570 while(i--) { 1571 phba->SerialNumber[j++] = vpd[index++]; 1572 if (j == 31) 1573 break; 1574 } 1575 phba->SerialNumber[j] = 0; 1576 continue; 1577 } 1578 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1579 phba->vpd_flag |= VPD_MODEL_DESC; 1580 index += 2; 1581 i = vpd[index]; 1582 index += 1; 1583 j = 0; 1584 Length -= (3+i); 1585 while(i--) { 1586 phba->ModelDesc[j++] = vpd[index++]; 1587 if (j == 255) 1588 break; 1589 } 1590 phba->ModelDesc[j] = 0; 1591 continue; 1592 } 1593 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1594 phba->vpd_flag |= VPD_MODEL_NAME; 1595 index += 2; 1596 i = vpd[index]; 1597 index += 1; 1598 j = 0; 1599 Length -= (3+i); 1600 while(i--) { 1601 phba->ModelName[j++] = vpd[index++]; 1602 if (j == 79) 1603 break; 1604 } 1605 phba->ModelName[j] = 0; 1606 continue; 1607 } 1608 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1609 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1610 index += 2; 1611 i = vpd[index]; 1612 index += 1; 1613 j = 0; 1614 Length -= (3+i); 1615 while(i--) { 1616 phba->ProgramType[j++] = vpd[index++]; 1617 if (j == 255) 1618 break; 1619 } 1620 phba->ProgramType[j] = 0; 1621 continue; 1622 } 1623 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1624 phba->vpd_flag |= VPD_PORT; 1625 index += 2; 1626 i = vpd[index]; 1627 index += 1; 1628 j = 0; 1629 Length -= (3+i); 1630 while(i--) { 1631 phba->Port[j++] = vpd[index++]; 1632 if (j == 19) 1633 break; 1634 } 1635 phba->Port[j] = 0; 1636 continue; 1637 } 1638 else { 1639 index += 2; 1640 i = vpd[index]; 1641 index += 1; 1642 index += i; 1643 Length -= (3 + i); 1644 } 1645 } 1646 finished = 0; 1647 break; 1648 case 0x78: 1649 finished = 1; 1650 break; 1651 default: 1652 index ++; 1653 break; 1654 } 1655 } 1656 1657 return(1); 1658} 1659 1660/** 1661 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1662 * @phba: pointer to lpfc hba data structure. 1663 * @mdp: pointer to the data structure to hold the derived model name. 1664 * @descp: pointer to the data structure to hold the derived description. 1665 * 1666 * This routine retrieves HBA's description based on its registered PCI device 1667 * ID. The @descp passed into this function points to an array of 256 chars. It 1668 * shall be returned with the model name, maximum speed, and the host bus type. 1669 * The @mdp passed into this function points to an array of 80 chars. When the 1670 * function returns, the @mdp will be filled with the model name. 1671 **/ 1672static void 1673lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1674{ 1675 lpfc_vpd_t *vp; 1676 uint16_t dev_id = phba->pcidev->device; 1677 int max_speed; 1678 int GE = 0; 1679 int oneConnect = 0; /* default is not a oneConnect */ 1680 struct { 1681 char *name; 1682 char *bus; 1683 char *function; 1684 } m = {"<Unknown>", "", ""}; 1685 1686 if (mdp && mdp[0] != '\0' 1687 && descp && descp[0] != '\0') 1688 return; 1689 1690 if (phba->lmt & LMT_10Gb) 1691 max_speed = 10; 1692 else if (phba->lmt & LMT_8Gb) 1693 max_speed = 8; 1694 else if (phba->lmt & LMT_4Gb) 1695 max_speed = 4; 1696 else if (phba->lmt & LMT_2Gb) 1697 max_speed = 2; 1698 else 1699 max_speed = 1; 1700 1701 vp = &phba->vpd; 1702 1703 switch (dev_id) { 1704 case PCI_DEVICE_ID_FIREFLY: 1705 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1706 break; 1707 case PCI_DEVICE_ID_SUPERFLY: 1708 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1709 m = (typeof(m)){"LP7000", "PCI", 1710 "Fibre Channel Adapter"}; 1711 else 1712 m = (typeof(m)){"LP7000E", "PCI", 1713 "Fibre Channel Adapter"}; 1714 break; 1715 case PCI_DEVICE_ID_DRAGONFLY: 1716 m = (typeof(m)){"LP8000", "PCI", 1717 "Fibre Channel Adapter"}; 1718 break; 1719 case PCI_DEVICE_ID_CENTAUR: 1720 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1721 m = (typeof(m)){"LP9002", "PCI", 1722 "Fibre Channel Adapter"}; 1723 else 1724 m = (typeof(m)){"LP9000", "PCI", 1725 "Fibre Channel Adapter"}; 1726 break; 1727 case PCI_DEVICE_ID_RFLY: 1728 m = (typeof(m)){"LP952", "PCI", 1729 "Fibre Channel Adapter"}; 1730 break; 1731 case PCI_DEVICE_ID_PEGASUS: 1732 m = (typeof(m)){"LP9802", "PCI-X", 1733 "Fibre Channel Adapter"}; 1734 break; 1735 case PCI_DEVICE_ID_THOR: 1736 m = (typeof(m)){"LP10000", "PCI-X", 1737 "Fibre Channel Adapter"}; 1738 break; 1739 case PCI_DEVICE_ID_VIPER: 1740 m = (typeof(m)){"LPX1000", "PCI-X", 1741 "Fibre Channel Adapter"}; 1742 break; 1743 case PCI_DEVICE_ID_PFLY: 1744 m = (typeof(m)){"LP982", "PCI-X", 1745 "Fibre Channel Adapter"}; 1746 break; 1747 case PCI_DEVICE_ID_TFLY: 1748 m = (typeof(m)){"LP1050", "PCI-X", 1749 "Fibre Channel Adapter"}; 1750 break; 1751 case PCI_DEVICE_ID_HELIOS: 1752 m = (typeof(m)){"LP11000", "PCI-X2", 1753 "Fibre Channel Adapter"}; 1754 break; 1755 case PCI_DEVICE_ID_HELIOS_SCSP: 1756 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1757 "Fibre Channel Adapter"}; 1758 break; 1759 case PCI_DEVICE_ID_HELIOS_DCSP: 1760 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1761 "Fibre Channel Adapter"}; 1762 break; 1763 case PCI_DEVICE_ID_NEPTUNE: 1764 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1765 break; 1766 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1767 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1768 break; 1769 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1770 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1771 break; 1772 case PCI_DEVICE_ID_BMID: 1773 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1774 break; 1775 case PCI_DEVICE_ID_BSMB: 1776 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1777 break; 1778 case PCI_DEVICE_ID_ZEPHYR: 1779 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1780 break; 1781 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1782 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1783 break; 1784 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1785 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1786 GE = 1; 1787 break; 1788 case PCI_DEVICE_ID_ZMID: 1789 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1790 break; 1791 case PCI_DEVICE_ID_ZSMB: 1792 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1793 break; 1794 case PCI_DEVICE_ID_LP101: 1795 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1796 break; 1797 case PCI_DEVICE_ID_LP10000S: 1798 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1799 break; 1800 case PCI_DEVICE_ID_LP11000S: 1801 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 1802 break; 1803 case PCI_DEVICE_ID_LPE11000S: 1804 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 1805 break; 1806 case PCI_DEVICE_ID_SAT: 1807 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 1808 break; 1809 case PCI_DEVICE_ID_SAT_MID: 1810 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 1811 break; 1812 case PCI_DEVICE_ID_SAT_SMB: 1813 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 1814 break; 1815 case PCI_DEVICE_ID_SAT_DCSP: 1816 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 1817 break; 1818 case PCI_DEVICE_ID_SAT_SCSP: 1819 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 1820 break; 1821 case PCI_DEVICE_ID_SAT_S: 1822 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 1823 break; 1824 case PCI_DEVICE_ID_HORNET: 1825 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 1826 GE = 1; 1827 break; 1828 case PCI_DEVICE_ID_PROTEUS_VF: 1829 m = (typeof(m)){"LPev12000", "PCIe IOV", 1830 "Fibre Channel Adapter"}; 1831 break; 1832 case PCI_DEVICE_ID_PROTEUS_PF: 1833 m = (typeof(m)){"LPev12000", "PCIe IOV", 1834 "Fibre Channel Adapter"}; 1835 break; 1836 case PCI_DEVICE_ID_PROTEUS_S: 1837 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 1838 "Fibre Channel Adapter"}; 1839 break; 1840 case PCI_DEVICE_ID_TIGERSHARK: 1841 oneConnect = 1; 1842 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 1843 break; 1844 case PCI_DEVICE_ID_TOMCAT: 1845 oneConnect = 1; 1846 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 1847 break; 1848 case PCI_DEVICE_ID_FALCON: 1849 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 1850 "EmulexSecure Fibre"}; 1851 break; 1852 case PCI_DEVICE_ID_BALIUS: 1853 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 1854 "Fibre Channel Adapter"}; 1855 break; 1856 default: 1857 m = (typeof(m)){"Unknown", "", ""}; 1858 break; 1859 } 1860 1861 if (mdp && mdp[0] == '\0') 1862 snprintf(mdp, 79,"%s", m.name); 1863 /* oneConnect hba requires special processing, they are all initiators 1864 * and we put the port number on the end 1865 */ 1866 if (descp && descp[0] == '\0') { 1867 if (oneConnect) 1868 snprintf(descp, 255, 1869 "Emulex OneConnect %s, %s Initiator, Port %s", 1870 m.name, m.function, 1871 phba->Port); 1872 else 1873 snprintf(descp, 255, 1874 "Emulex %s %d%s %s %s", 1875 m.name, max_speed, (GE) ? "GE" : "Gb", 1876 m.bus, m.function); 1877 } 1878} 1879 1880/** 1881 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 1882 * @phba: pointer to lpfc hba data structure. 1883 * @pring: pointer to a IOCB ring. 1884 * @cnt: the number of IOCBs to be posted to the IOCB ring. 1885 * 1886 * This routine posts a given number of IOCBs with the associated DMA buffer 1887 * descriptors specified by the cnt argument to the given IOCB ring. 1888 * 1889 * Return codes 1890 * The number of IOCBs NOT able to be posted to the IOCB ring. 1891 **/ 1892int 1893lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 1894{ 1895 IOCB_t *icmd; 1896 struct lpfc_iocbq *iocb; 1897 struct lpfc_dmabuf *mp1, *mp2; 1898 1899 cnt += pring->missbufcnt; 1900 1901 /* While there are buffers to post */ 1902 while (cnt > 0) { 1903 /* Allocate buffer for command iocb */ 1904 iocb = lpfc_sli_get_iocbq(phba); 1905 if (iocb == NULL) { 1906 pring->missbufcnt = cnt; 1907 return cnt; 1908 } 1909 icmd = &iocb->iocb; 1910 1911 /* 2 buffers can be posted per command */ 1912 /* Allocate buffer to post */ 1913 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1914 if (mp1) 1915 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 1916 if (!mp1 || !mp1->virt) { 1917 kfree(mp1); 1918 lpfc_sli_release_iocbq(phba, iocb); 1919 pring->missbufcnt = cnt; 1920 return cnt; 1921 } 1922 1923 INIT_LIST_HEAD(&mp1->list); 1924 /* Allocate buffer to post */ 1925 if (cnt > 1) { 1926 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1927 if (mp2) 1928 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1929 &mp2->phys); 1930 if (!mp2 || !mp2->virt) { 1931 kfree(mp2); 1932 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1933 kfree(mp1); 1934 lpfc_sli_release_iocbq(phba, iocb); 1935 pring->missbufcnt = cnt; 1936 return cnt; 1937 } 1938 1939 INIT_LIST_HEAD(&mp2->list); 1940 } else { 1941 mp2 = NULL; 1942 } 1943 1944 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1945 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1946 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1947 icmd->ulpBdeCount = 1; 1948 cnt--; 1949 if (mp2) { 1950 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1951 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1952 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1953 cnt--; 1954 icmd->ulpBdeCount = 2; 1955 } 1956 1957 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1958 icmd->ulpLe = 1; 1959 1960 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 1961 IOCB_ERROR) { 1962 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1963 kfree(mp1); 1964 cnt++; 1965 if (mp2) { 1966 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1967 kfree(mp2); 1968 cnt++; 1969 } 1970 lpfc_sli_release_iocbq(phba, iocb); 1971 pring->missbufcnt = cnt; 1972 return cnt; 1973 } 1974 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1975 if (mp2) 1976 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1977 } 1978 pring->missbufcnt = 0; 1979 return 0; 1980} 1981 1982/** 1983 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 1984 * @phba: pointer to lpfc hba data structure. 1985 * 1986 * This routine posts initial receive IOCB buffers to the ELS ring. The 1987 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 1988 * set to 64 IOCBs. 1989 * 1990 * Return codes 1991 * 0 - success (currently always success) 1992 **/ 1993static int 1994lpfc_post_rcv_buf(struct lpfc_hba *phba) 1995{ 1996 struct lpfc_sli *psli = &phba->sli; 1997 1998 /* Ring 0, ELS / CT buffers */ 1999 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2000 /* Ring 2 - FCP no buffers needed */ 2001 2002 return 0; 2003} 2004 2005#define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2006 2007/** 2008 * lpfc_sha_init - Set up initial array of hash table entries 2009 * @HashResultPointer: pointer to an array as hash table. 2010 * 2011 * This routine sets up the initial values to the array of hash table entries 2012 * for the LC HBAs. 2013 **/ 2014static void 2015lpfc_sha_init(uint32_t * HashResultPointer) 2016{ 2017 HashResultPointer[0] = 0x67452301; 2018 HashResultPointer[1] = 0xEFCDAB89; 2019 HashResultPointer[2] = 0x98BADCFE; 2020 HashResultPointer[3] = 0x10325476; 2021 HashResultPointer[4] = 0xC3D2E1F0; 2022} 2023 2024/** 2025 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2026 * @HashResultPointer: pointer to an initial/result hash table. 2027 * @HashWorkingPointer: pointer to an working hash table. 2028 * 2029 * This routine iterates an initial hash table pointed by @HashResultPointer 2030 * with the values from the working hash table pointeed by @HashWorkingPointer. 2031 * The results are putting back to the initial hash table, returned through 2032 * the @HashResultPointer as the result hash table. 2033 **/ 2034static void 2035lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2036{ 2037 int t; 2038 uint32_t TEMP; 2039 uint32_t A, B, C, D, E; 2040 t = 16; 2041 do { 2042 HashWorkingPointer[t] = 2043 S(1, 2044 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2045 8] ^ 2046 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2047 } while (++t <= 79); 2048 t = 0; 2049 A = HashResultPointer[0]; 2050 B = HashResultPointer[1]; 2051 C = HashResultPointer[2]; 2052 D = HashResultPointer[3]; 2053 E = HashResultPointer[4]; 2054 2055 do { 2056 if (t < 20) { 2057 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2058 } else if (t < 40) { 2059 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2060 } else if (t < 60) { 2061 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2062 } else { 2063 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2064 } 2065 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2066 E = D; 2067 D = C; 2068 C = S(30, B); 2069 B = A; 2070 A = TEMP; 2071 } while (++t <= 79); 2072 2073 HashResultPointer[0] += A; 2074 HashResultPointer[1] += B; 2075 HashResultPointer[2] += C; 2076 HashResultPointer[3] += D; 2077 HashResultPointer[4] += E; 2078 2079} 2080 2081/** 2082 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2083 * @RandomChallenge: pointer to the entry of host challenge random number array. 2084 * @HashWorking: pointer to the entry of the working hash array. 2085 * 2086 * This routine calculates the working hash array referred by @HashWorking 2087 * from the challenge random numbers associated with the host, referred by 2088 * @RandomChallenge. The result is put into the entry of the working hash 2089 * array and returned by reference through @HashWorking. 2090 **/ 2091static void 2092lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2093{ 2094 *HashWorking = (*RandomChallenge ^ *HashWorking); 2095} 2096 2097/** 2098 * lpfc_hba_init - Perform special handling for LC HBA initialization 2099 * @phba: pointer to lpfc hba data structure. 2100 * @hbainit: pointer to an array of unsigned 32-bit integers. 2101 * 2102 * This routine performs the special handling for LC HBA initialization. 2103 **/ 2104void 2105lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2106{ 2107 int t; 2108 uint32_t *HashWorking; 2109 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2110 2111 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2112 if (!HashWorking) 2113 return; 2114 2115 HashWorking[0] = HashWorking[78] = *pwwnn++; 2116 HashWorking[1] = HashWorking[79] = *pwwnn; 2117 2118 for (t = 0; t < 7; t++) 2119 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2120 2121 lpfc_sha_init(hbainit); 2122 lpfc_sha_iterate(hbainit, HashWorking); 2123 kfree(HashWorking); 2124} 2125 2126/** 2127 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2128 * @vport: pointer to a virtual N_Port data structure. 2129 * 2130 * This routine performs the necessary cleanups before deleting the @vport. 2131 * It invokes the discovery state machine to perform necessary state 2132 * transitions and to release the ndlps associated with the @vport. Note, 2133 * the physical port is treated as @vport 0. 2134 **/ 2135void 2136lpfc_cleanup(struct lpfc_vport *vport) 2137{ 2138 struct lpfc_hba *phba = vport->phba; 2139 struct lpfc_nodelist *ndlp, *next_ndlp; 2140 int i = 0; 2141 2142 if (phba->link_state > LPFC_LINK_DOWN) 2143 lpfc_port_link_failure(vport); 2144 2145 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2146 if (!NLP_CHK_NODE_ACT(ndlp)) { 2147 ndlp = lpfc_enable_node(vport, ndlp, 2148 NLP_STE_UNUSED_NODE); 2149 if (!ndlp) 2150 continue; 2151 spin_lock_irq(&phba->ndlp_lock); 2152 NLP_SET_FREE_REQ(ndlp); 2153 spin_unlock_irq(&phba->ndlp_lock); 2154 /* Trigger the release of the ndlp memory */ 2155 lpfc_nlp_put(ndlp); 2156 continue; 2157 } 2158 spin_lock_irq(&phba->ndlp_lock); 2159 if (NLP_CHK_FREE_REQ(ndlp)) { 2160 /* The ndlp should not be in memory free mode already */ 2161 spin_unlock_irq(&phba->ndlp_lock); 2162 continue; 2163 } else 2164 /* Indicate request for freeing ndlp memory */ 2165 NLP_SET_FREE_REQ(ndlp); 2166 spin_unlock_irq(&phba->ndlp_lock); 2167 2168 if (vport->port_type != LPFC_PHYSICAL_PORT && 2169 ndlp->nlp_DID == Fabric_DID) { 2170 /* Just free up ndlp with Fabric_DID for vports */ 2171 lpfc_nlp_put(ndlp); 2172 continue; 2173 } 2174 2175 if (ndlp->nlp_type & NLP_FABRIC) 2176 lpfc_disc_state_machine(vport, ndlp, NULL, 2177 NLP_EVT_DEVICE_RECOVERY); 2178 2179 lpfc_disc_state_machine(vport, ndlp, NULL, 2180 NLP_EVT_DEVICE_RM); 2181 2182 } 2183 2184 /* At this point, ALL ndlp's should be gone 2185 * because of the previous NLP_EVT_DEVICE_RM. 2186 * Lets wait for this to happen, if needed. 2187 */ 2188 while (!list_empty(&vport->fc_nodes)) { 2189 if (i++ > 3000) { 2190 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2191 "0233 Nodelist not empty\n"); 2192 list_for_each_entry_safe(ndlp, next_ndlp, 2193 &vport->fc_nodes, nlp_listp) { 2194 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2195 LOG_NODE, 2196 "0282 did:x%x ndlp:x%p " 2197 "usgmap:x%x refcnt:%d\n", 2198 ndlp->nlp_DID, (void *)ndlp, 2199 ndlp->nlp_usg_map, 2200 atomic_read( 2201 &ndlp->kref.refcount)); 2202 } 2203 break; 2204 } 2205 2206 /* Wait for any activity on ndlps to settle */ 2207 msleep(10); 2208 } 2209} 2210 2211/** 2212 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2213 * @vport: pointer to a virtual N_Port data structure. 2214 * 2215 * This routine stops all the timers associated with a @vport. This function 2216 * is invoked before disabling or deleting a @vport. Note that the physical 2217 * port is treated as @vport 0. 2218 **/ 2219void 2220lpfc_stop_vport_timers(struct lpfc_vport *vport) 2221{ 2222 del_timer_sync(&vport->els_tmofunc); 2223 del_timer_sync(&vport->fc_fdmitmo); 2224 lpfc_can_disctmo(vport); 2225 return; 2226} 2227 2228/** 2229 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2230 * @phba: pointer to lpfc hba data structure. 2231 * 2232 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2233 * caller of this routine should already hold the host lock. 2234 **/ 2235void 2236__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2237{ 2238 /* Clear pending FCF rediscovery wait flag */ 2239 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2240 2241 /* Now, try to stop the timer */ 2242 del_timer(&phba->fcf.redisc_wait); 2243} 2244 2245/** 2246 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2247 * @phba: pointer to lpfc hba data structure. 2248 * 2249 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2250 * checks whether the FCF rediscovery wait timer is pending with the host 2251 * lock held before proceeding with disabling the timer and clearing the 2252 * wait timer pendig flag. 2253 **/ 2254void 2255lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2256{ 2257 spin_lock_irq(&phba->hbalock); 2258 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2259 /* FCF rediscovery timer already fired or stopped */ 2260 spin_unlock_irq(&phba->hbalock); 2261 return; 2262 } 2263 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2264 /* Clear failover in progress flags */ 2265 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2266 spin_unlock_irq(&phba->hbalock); 2267} 2268 2269/** 2270 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2271 * @phba: pointer to lpfc hba data structure. 2272 * 2273 * This routine stops all the timers associated with a HBA. This function is 2274 * invoked before either putting a HBA offline or unloading the driver. 2275 **/ 2276void 2277lpfc_stop_hba_timers(struct lpfc_hba *phba) 2278{ 2279 lpfc_stop_vport_timers(phba->pport); 2280 del_timer_sync(&phba->sli.mbox_tmo); 2281 del_timer_sync(&phba->fabric_block_timer); 2282 del_timer_sync(&phba->eratt_poll); 2283 del_timer_sync(&phba->hb_tmofunc); 2284 phba->hb_outstanding = 0; 2285 2286 switch (phba->pci_dev_grp) { 2287 case LPFC_PCI_DEV_LP: 2288 /* Stop any LightPulse device specific driver timers */ 2289 del_timer_sync(&phba->fcp_poll_timer); 2290 break; 2291 case LPFC_PCI_DEV_OC: 2292 /* Stop any OneConnect device sepcific driver timers */ 2293 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2294 break; 2295 default: 2296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2297 "0297 Invalid device group (x%x)\n", 2298 phba->pci_dev_grp); 2299 break; 2300 } 2301 return; 2302} 2303 2304/** 2305 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2306 * @phba: pointer to lpfc hba data structure. 2307 * 2308 * This routine marks a HBA's management interface as blocked. Once the HBA's 2309 * management interface is marked as blocked, all the user space access to 2310 * the HBA, whether they are from sysfs interface or libdfc interface will 2311 * all be blocked. The HBA is set to block the management interface when the 2312 * driver prepares the HBA interface for online or offline. 2313 **/ 2314static void 2315lpfc_block_mgmt_io(struct lpfc_hba * phba) 2316{ 2317 unsigned long iflag; 2318 uint8_t actcmd = MBX_HEARTBEAT; 2319 unsigned long timeout; 2320 2321 2322 spin_lock_irqsave(&phba->hbalock, iflag); 2323 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2324 if (phba->sli.mbox_active) 2325 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2326 spin_unlock_irqrestore(&phba->hbalock, iflag); 2327 /* Determine how long we might wait for the active mailbox 2328 * command to be gracefully completed by firmware. 2329 */ 2330 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) + 2331 jiffies; 2332 /* Wait for the outstnading mailbox command to complete */ 2333 while (phba->sli.mbox_active) { 2334 /* Check active mailbox complete status every 2ms */ 2335 msleep(2); 2336 if (time_after(jiffies, timeout)) { 2337 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2338 "2813 Mgmt IO is Blocked %x " 2339 "- mbox cmd %x still active\n", 2340 phba->sli.sli_flag, actcmd); 2341 break; 2342 } 2343 } 2344} 2345 2346/** 2347 * lpfc_online - Initialize and bring a HBA online 2348 * @phba: pointer to lpfc hba data structure. 2349 * 2350 * This routine initializes the HBA and brings a HBA online. During this 2351 * process, the management interface is blocked to prevent user space access 2352 * to the HBA interfering with the driver initialization. 2353 * 2354 * Return codes 2355 * 0 - successful 2356 * 1 - failed 2357 **/ 2358int 2359lpfc_online(struct lpfc_hba *phba) 2360{ 2361 struct lpfc_vport *vport; 2362 struct lpfc_vport **vports; 2363 int i; 2364 2365 if (!phba) 2366 return 0; 2367 vport = phba->pport; 2368 2369 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2370 return 0; 2371 2372 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2373 "0458 Bring Adapter online\n"); 2374 2375 lpfc_block_mgmt_io(phba); 2376 2377 if (!lpfc_sli_queue_setup(phba)) { 2378 lpfc_unblock_mgmt_io(phba); 2379 return 1; 2380 } 2381 2382 if (phba->sli_rev == LPFC_SLI_REV4) { 2383 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2384 lpfc_unblock_mgmt_io(phba); 2385 return 1; 2386 } 2387 } else { 2388 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2389 lpfc_unblock_mgmt_io(phba); 2390 return 1; 2391 } 2392 } 2393 2394 vports = lpfc_create_vport_work_array(phba); 2395 if (vports != NULL) 2396 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2397 struct Scsi_Host *shost; 2398 shost = lpfc_shost_from_vport(vports[i]); 2399 spin_lock_irq(shost->host_lock); 2400 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2401 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2402 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2403 if (phba->sli_rev == LPFC_SLI_REV4) 2404 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2405 spin_unlock_irq(shost->host_lock); 2406 } 2407 lpfc_destroy_vport_work_array(phba, vports); 2408 2409 lpfc_unblock_mgmt_io(phba); 2410 return 0; 2411} 2412 2413/** 2414 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2415 * @phba: pointer to lpfc hba data structure. 2416 * 2417 * This routine marks a HBA's management interface as not blocked. Once the 2418 * HBA's management interface is marked as not blocked, all the user space 2419 * access to the HBA, whether they are from sysfs interface or libdfc 2420 * interface will be allowed. The HBA is set to block the management interface 2421 * when the driver prepares the HBA interface for online or offline and then 2422 * set to unblock the management interface afterwards. 2423 **/ 2424void 2425lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2426{ 2427 unsigned long iflag; 2428 2429 spin_lock_irqsave(&phba->hbalock, iflag); 2430 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2431 spin_unlock_irqrestore(&phba->hbalock, iflag); 2432} 2433 2434/** 2435 * lpfc_offline_prep - Prepare a HBA to be brought offline 2436 * @phba: pointer to lpfc hba data structure. 2437 * 2438 * This routine is invoked to prepare a HBA to be brought offline. It performs 2439 * unregistration login to all the nodes on all vports and flushes the mailbox 2440 * queue to make it ready to be brought offline. 2441 **/ 2442void 2443lpfc_offline_prep(struct lpfc_hba * phba) 2444{ 2445 struct lpfc_vport *vport = phba->pport; 2446 struct lpfc_nodelist *ndlp, *next_ndlp; 2447 struct lpfc_vport **vports; 2448 struct Scsi_Host *shost; 2449 int i; 2450 2451 if (vport->fc_flag & FC_OFFLINE_MODE) 2452 return; 2453 2454 lpfc_block_mgmt_io(phba); 2455 2456 lpfc_linkdown(phba); 2457 2458 /* Issue an unreg_login to all nodes on all vports */ 2459 vports = lpfc_create_vport_work_array(phba); 2460 if (vports != NULL) { 2461 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2462 if (vports[i]->load_flag & FC_UNLOADING) 2463 continue; 2464 shost = lpfc_shost_from_vport(vports[i]); 2465 spin_lock_irq(shost->host_lock); 2466 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2467 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2468 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2469 spin_unlock_irq(shost->host_lock); 2470 2471 shost = lpfc_shost_from_vport(vports[i]); 2472 list_for_each_entry_safe(ndlp, next_ndlp, 2473 &vports[i]->fc_nodes, 2474 nlp_listp) { 2475 if (!NLP_CHK_NODE_ACT(ndlp)) 2476 continue; 2477 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2478 continue; 2479 if (ndlp->nlp_type & NLP_FABRIC) { 2480 lpfc_disc_state_machine(vports[i], ndlp, 2481 NULL, NLP_EVT_DEVICE_RECOVERY); 2482 lpfc_disc_state_machine(vports[i], ndlp, 2483 NULL, NLP_EVT_DEVICE_RM); 2484 } 2485 spin_lock_irq(shost->host_lock); 2486 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2487 spin_unlock_irq(shost->host_lock); 2488 lpfc_unreg_rpi(vports[i], ndlp); 2489 } 2490 } 2491 } 2492 lpfc_destroy_vport_work_array(phba, vports); 2493 2494 lpfc_sli_mbox_sys_shutdown(phba); 2495} 2496 2497/** 2498 * lpfc_offline - Bring a HBA offline 2499 * @phba: pointer to lpfc hba data structure. 2500 * 2501 * This routine actually brings a HBA offline. It stops all the timers 2502 * associated with the HBA, brings down the SLI layer, and eventually 2503 * marks the HBA as in offline state for the upper layer protocol. 2504 **/ 2505void 2506lpfc_offline(struct lpfc_hba *phba) 2507{ 2508 struct Scsi_Host *shost; 2509 struct lpfc_vport **vports; 2510 int i; 2511 2512 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2513 return; 2514 2515 /* stop port and all timers associated with this hba */ 2516 lpfc_stop_port(phba); 2517 vports = lpfc_create_vport_work_array(phba); 2518 if (vports != NULL) 2519 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2520 lpfc_stop_vport_timers(vports[i]); 2521 lpfc_destroy_vport_work_array(phba, vports); 2522 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2523 "0460 Bring Adapter offline\n"); 2524 /* Bring down the SLI Layer and cleanup. The HBA is offline 2525 now. */ 2526 lpfc_sli_hba_down(phba); 2527 spin_lock_irq(&phba->hbalock); 2528 phba->work_ha = 0; 2529 spin_unlock_irq(&phba->hbalock); 2530 vports = lpfc_create_vport_work_array(phba); 2531 if (vports != NULL) 2532 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2533 shost = lpfc_shost_from_vport(vports[i]); 2534 spin_lock_irq(shost->host_lock); 2535 vports[i]->work_port_events = 0; 2536 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2537 spin_unlock_irq(shost->host_lock); 2538 } 2539 lpfc_destroy_vport_work_array(phba, vports); 2540} 2541 2542/** 2543 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2544 * @phba: pointer to lpfc hba data structure. 2545 * 2546 * This routine is to free all the SCSI buffers and IOCBs from the driver 2547 * list back to kernel. It is called from lpfc_pci_remove_one to free 2548 * the internal resources before the device is removed from the system. 2549 * 2550 * Return codes 2551 * 0 - successful (for now, it always returns 0) 2552 **/ 2553static int 2554lpfc_scsi_free(struct lpfc_hba *phba) 2555{ 2556 struct lpfc_scsi_buf *sb, *sb_next; 2557 struct lpfc_iocbq *io, *io_next; 2558 2559 spin_lock_irq(&phba->hbalock); 2560 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2561 spin_lock(&phba->scsi_buf_list_lock); 2562 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2563 list_del(&sb->list); 2564 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2565 sb->dma_handle); 2566 kfree(sb); 2567 phba->total_scsi_bufs--; 2568 } 2569 spin_unlock(&phba->scsi_buf_list_lock); 2570 2571 /* Release all the lpfc_iocbq entries maintained by this host. */ 2572 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2573 list_del(&io->list); 2574 kfree(io); 2575 phba->total_iocbq_bufs--; 2576 } 2577 spin_unlock_irq(&phba->hbalock); 2578 return 0; 2579} 2580 2581/** 2582 * lpfc_create_port - Create an FC port 2583 * @phba: pointer to lpfc hba data structure. 2584 * @instance: a unique integer ID to this FC port. 2585 * @dev: pointer to the device data structure. 2586 * 2587 * This routine creates a FC port for the upper layer protocol. The FC port 2588 * can be created on top of either a physical port or a virtual port provided 2589 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2590 * and associates the FC port created before adding the shost into the SCSI 2591 * layer. 2592 * 2593 * Return codes 2594 * @vport - pointer to the virtual N_Port data structure. 2595 * NULL - port create failed. 2596 **/ 2597struct lpfc_vport * 2598lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2599{ 2600 struct lpfc_vport *vport; 2601 struct Scsi_Host *shost; 2602 int error = 0; 2603 2604 if (dev != &phba->pcidev->dev) 2605 shost = scsi_host_alloc(&lpfc_vport_template, 2606 sizeof(struct lpfc_vport)); 2607 else 2608 shost = scsi_host_alloc(&lpfc_template, 2609 sizeof(struct lpfc_vport)); 2610 if (!shost) 2611 goto out; 2612 2613 vport = (struct lpfc_vport *) shost->hostdata; 2614 vport->phba = phba; 2615 vport->load_flag |= FC_LOADING; 2616 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2617 vport->fc_rscn_flush = 0; 2618 2619 lpfc_get_vport_cfgparam(vport); 2620 shost->unique_id = instance; 2621 shost->max_id = LPFC_MAX_TARGET; 2622 shost->max_lun = vport->cfg_max_luns; 2623 shost->this_id = -1; 2624 shost->max_cmd_len = 16; 2625 if (phba->sli_rev == LPFC_SLI_REV4) { 2626 shost->dma_boundary = 2627 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 2628 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2629 } 2630 2631 /* 2632 * Set initial can_queue value since 0 is no longer supported and 2633 * scsi_add_host will fail. This will be adjusted later based on the 2634 * max xri value determined in hba setup. 2635 */ 2636 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2637 if (dev != &phba->pcidev->dev) { 2638 shost->transportt = lpfc_vport_transport_template; 2639 vport->port_type = LPFC_NPIV_PORT; 2640 } else { 2641 shost->transportt = lpfc_transport_template; 2642 vport->port_type = LPFC_PHYSICAL_PORT; 2643 } 2644 2645 /* Initialize all internally managed lists. */ 2646 INIT_LIST_HEAD(&vport->fc_nodes); 2647 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2648 spin_lock_init(&vport->work_port_lock); 2649 2650 init_timer(&vport->fc_disctmo); 2651 vport->fc_disctmo.function = lpfc_disc_timeout; 2652 vport->fc_disctmo.data = (unsigned long)vport; 2653 2654 init_timer(&vport->fc_fdmitmo); 2655 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2656 vport->fc_fdmitmo.data = (unsigned long)vport; 2657 2658 init_timer(&vport->els_tmofunc); 2659 vport->els_tmofunc.function = lpfc_els_timeout; 2660 vport->els_tmofunc.data = (unsigned long)vport; 2661 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 2662 if (error) 2663 goto out_put_shost; 2664 2665 spin_lock_irq(&phba->hbalock); 2666 list_add_tail(&vport->listentry, &phba->port_list); 2667 spin_unlock_irq(&phba->hbalock); 2668 return vport; 2669 2670out_put_shost: 2671 scsi_host_put(shost); 2672out: 2673 return NULL; 2674} 2675 2676/** 2677 * destroy_port - destroy an FC port 2678 * @vport: pointer to an lpfc virtual N_Port data structure. 2679 * 2680 * This routine destroys a FC port from the upper layer protocol. All the 2681 * resources associated with the port are released. 2682 **/ 2683void 2684destroy_port(struct lpfc_vport *vport) 2685{ 2686 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2687 struct lpfc_hba *phba = vport->phba; 2688 2689 lpfc_debugfs_terminate(vport); 2690 fc_remove_host(shost); 2691 scsi_remove_host(shost); 2692 2693 spin_lock_irq(&phba->hbalock); 2694 list_del_init(&vport->listentry); 2695 spin_unlock_irq(&phba->hbalock); 2696 2697 lpfc_cleanup(vport); 2698 return; 2699} 2700 2701/** 2702 * lpfc_get_instance - Get a unique integer ID 2703 * 2704 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2705 * uses the kernel idr facility to perform the task. 2706 * 2707 * Return codes: 2708 * instance - a unique integer ID allocated as the new instance. 2709 * -1 - lpfc get instance failed. 2710 **/ 2711int 2712lpfc_get_instance(void) 2713{ 2714 int instance = 0; 2715 2716 /* Assign an unused number */ 2717 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2718 return -1; 2719 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2720 return -1; 2721 return instance; 2722} 2723 2724/** 2725 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2726 * @shost: pointer to SCSI host data structure. 2727 * @time: elapsed time of the scan in jiffies. 2728 * 2729 * This routine is called by the SCSI layer with a SCSI host to determine 2730 * whether the scan host is finished. 2731 * 2732 * Note: there is no scan_start function as adapter initialization will have 2733 * asynchronously kicked off the link initialization. 2734 * 2735 * Return codes 2736 * 0 - SCSI host scan is not over yet. 2737 * 1 - SCSI host scan is over. 2738 **/ 2739int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2740{ 2741 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2742 struct lpfc_hba *phba = vport->phba; 2743 int stat = 0; 2744 2745 spin_lock_irq(shost->host_lock); 2746 2747 if (vport->load_flag & FC_UNLOADING) { 2748 stat = 1; 2749 goto finished; 2750 } 2751 if (time >= 30 * HZ) { 2752 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2753 "0461 Scanning longer than 30 " 2754 "seconds. Continuing initialization\n"); 2755 stat = 1; 2756 goto finished; 2757 } 2758 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2759 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2760 "0465 Link down longer than 15 " 2761 "seconds. Continuing initialization\n"); 2762 stat = 1; 2763 goto finished; 2764 } 2765 2766 if (vport->port_state != LPFC_VPORT_READY) 2767 goto finished; 2768 if (vport->num_disc_nodes || vport->fc_prli_sent) 2769 goto finished; 2770 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2771 goto finished; 2772 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2773 goto finished; 2774 2775 stat = 1; 2776 2777finished: 2778 spin_unlock_irq(shost->host_lock); 2779 return stat; 2780} 2781 2782/** 2783 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 2784 * @shost: pointer to SCSI host data structure. 2785 * 2786 * This routine initializes a given SCSI host attributes on a FC port. The 2787 * SCSI host can be either on top of a physical port or a virtual port. 2788 **/ 2789void lpfc_host_attrib_init(struct Scsi_Host *shost) 2790{ 2791 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2792 struct lpfc_hba *phba = vport->phba; 2793 /* 2794 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2795 */ 2796 2797 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2798 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2799 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2800 2801 memset(fc_host_supported_fc4s(shost), 0, 2802 sizeof(fc_host_supported_fc4s(shost))); 2803 fc_host_supported_fc4s(shost)[2] = 1; 2804 fc_host_supported_fc4s(shost)[7] = 1; 2805 2806 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2807 sizeof fc_host_symbolic_name(shost)); 2808 2809 fc_host_supported_speeds(shost) = 0; 2810 if (phba->lmt & LMT_10Gb) 2811 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2812 if (phba->lmt & LMT_8Gb) 2813 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2814 if (phba->lmt & LMT_4Gb) 2815 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2816 if (phba->lmt & LMT_2Gb) 2817 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2818 if (phba->lmt & LMT_1Gb) 2819 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2820 2821 fc_host_maxframe_size(shost) = 2822 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2823 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2824 2825 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 2826 2827 /* This value is also unchanging */ 2828 memset(fc_host_active_fc4s(shost), 0, 2829 sizeof(fc_host_active_fc4s(shost))); 2830 fc_host_active_fc4s(shost)[2] = 1; 2831 fc_host_active_fc4s(shost)[7] = 1; 2832 2833 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2834 spin_lock_irq(shost->host_lock); 2835 vport->load_flag &= ~FC_LOADING; 2836 spin_unlock_irq(shost->host_lock); 2837} 2838 2839/** 2840 * lpfc_stop_port_s3 - Stop SLI3 device port 2841 * @phba: pointer to lpfc hba data structure. 2842 * 2843 * This routine is invoked to stop an SLI3 device port, it stops the device 2844 * from generating interrupts and stops the device driver's timers for the 2845 * device. 2846 **/ 2847static void 2848lpfc_stop_port_s3(struct lpfc_hba *phba) 2849{ 2850 /* Clear all interrupt enable conditions */ 2851 writel(0, phba->HCregaddr); 2852 readl(phba->HCregaddr); /* flush */ 2853 /* Clear all pending interrupts */ 2854 writel(0xffffffff, phba->HAregaddr); 2855 readl(phba->HAregaddr); /* flush */ 2856 2857 /* Reset some HBA SLI setup states */ 2858 lpfc_stop_hba_timers(phba); 2859 phba->pport->work_port_events = 0; 2860} 2861 2862/** 2863 * lpfc_stop_port_s4 - Stop SLI4 device port 2864 * @phba: pointer to lpfc hba data structure. 2865 * 2866 * This routine is invoked to stop an SLI4 device port, it stops the device 2867 * from generating interrupts and stops the device driver's timers for the 2868 * device. 2869 **/ 2870static void 2871lpfc_stop_port_s4(struct lpfc_hba *phba) 2872{ 2873 /* Reset some HBA SLI4 setup states */ 2874 lpfc_stop_hba_timers(phba); 2875 phba->pport->work_port_events = 0; 2876 phba->sli4_hba.intr_enable = 0; 2877} 2878 2879/** 2880 * lpfc_stop_port - Wrapper function for stopping hba port 2881 * @phba: Pointer to HBA context object. 2882 * 2883 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 2884 * the API jump table function pointer from the lpfc_hba struct. 2885 **/ 2886void 2887lpfc_stop_port(struct lpfc_hba *phba) 2888{ 2889 phba->lpfc_stop_port(phba); 2890} 2891 2892/** 2893 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 2894 * @phba: Pointer to hba for which this call is being executed. 2895 * 2896 * This routine starts the timer waiting for the FCF rediscovery to complete. 2897 **/ 2898void 2899lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 2900{ 2901 unsigned long fcf_redisc_wait_tmo = 2902 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 2903 /* Start fcf rediscovery wait period timer */ 2904 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 2905 spin_lock_irq(&phba->hbalock); 2906 /* Allow action to new fcf asynchronous event */ 2907 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2908 /* Mark the FCF rediscovery pending state */ 2909 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 2910 spin_unlock_irq(&phba->hbalock); 2911} 2912 2913/** 2914 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 2915 * @ptr: Map to lpfc_hba data structure pointer. 2916 * 2917 * This routine is invoked when waiting for FCF table rediscover has been 2918 * timed out. If new FCF record(s) has (have) been discovered during the 2919 * wait period, a new FCF event shall be added to the FCOE async event 2920 * list, and then worker thread shall be waked up for processing from the 2921 * worker thread context. 2922 **/ 2923void 2924lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 2925{ 2926 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 2927 2928 /* Don't send FCF rediscovery event if timer cancelled */ 2929 spin_lock_irq(&phba->hbalock); 2930 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2931 spin_unlock_irq(&phba->hbalock); 2932 return; 2933 } 2934 /* Clear FCF rediscovery timer pending flag */ 2935 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2936 /* FCF rediscovery event to worker thread */ 2937 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 2938 spin_unlock_irq(&phba->hbalock); 2939 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2940 "2776 FCF rediscover quiescent timer expired\n"); 2941 /* wake up worker thread */ 2942 lpfc_worker_wake_up(phba); 2943} 2944 2945/** 2946 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support 2947 * @phba: pointer to lpfc hba data structure. 2948 * 2949 * This function uses the QUERY_FW_CFG mailbox command to determine if the 2950 * firmware loaded supports FCoE. A return of zero indicates that the mailbox 2951 * was successful and the firmware supports FCoE. Any other return indicates 2952 * a error. It is assumed that this function will be called before interrupts 2953 * are enabled. 2954 **/ 2955static int 2956lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba) 2957{ 2958 int rc = 0; 2959 LPFC_MBOXQ_t *mboxq; 2960 struct lpfc_mbx_query_fw_cfg *query_fw_cfg; 2961 uint32_t length; 2962 uint32_t shdr_status, shdr_add_status; 2963 2964 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2965 if (!mboxq) { 2966 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2967 "2621 Failed to allocate mbox for " 2968 "query firmware config cmd\n"); 2969 return -ENOMEM; 2970 } 2971 query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg; 2972 length = (sizeof(struct lpfc_mbx_query_fw_cfg) - 2973 sizeof(struct lpfc_sli4_cfg_mhdr)); 2974 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 2975 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 2976 length, LPFC_SLI4_MBX_EMBED); 2977 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 2978 /* The IOCTL status is embedded in the mailbox subheader. */ 2979 shdr_status = bf_get(lpfc_mbox_hdr_status, 2980 &query_fw_cfg->header.cfg_shdr.response); 2981 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 2982 &query_fw_cfg->header.cfg_shdr.response); 2983 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 2984 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2985 "2622 Query Firmware Config failed " 2986 "mbx status x%x, status x%x add_status x%x\n", 2987 rc, shdr_status, shdr_add_status); 2988 return -EINVAL; 2989 } 2990 if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) { 2991 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2992 "2623 FCoE Function not supported by firmware. " 2993 "Function mode = %08x\n", 2994 query_fw_cfg->function_mode); 2995 return -EINVAL; 2996 } 2997 if (rc != MBX_TIMEOUT) 2998 mempool_free(mboxq, phba->mbox_mem_pool); 2999 return 0; 3000} 3001 3002/** 3003 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3004 * @phba: pointer to lpfc hba data structure. 3005 * @acqe_link: pointer to the async link completion queue entry. 3006 * 3007 * This routine is to parse the SLI4 link-attention link fault code and 3008 * translate it into the base driver's read link attention mailbox command 3009 * status. 3010 * 3011 * Return: Link-attention status in terms of base driver's coding. 3012 **/ 3013static uint16_t 3014lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3015 struct lpfc_acqe_link *acqe_link) 3016{ 3017 uint16_t latt_fault; 3018 3019 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3020 case LPFC_ASYNC_LINK_FAULT_NONE: 3021 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3022 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3023 latt_fault = 0; 3024 break; 3025 default: 3026 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3027 "0398 Invalid link fault code: x%x\n", 3028 bf_get(lpfc_acqe_link_fault, acqe_link)); 3029 latt_fault = MBXERR_ERROR; 3030 break; 3031 } 3032 return latt_fault; 3033} 3034 3035/** 3036 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3037 * @phba: pointer to lpfc hba data structure. 3038 * @acqe_link: pointer to the async link completion queue entry. 3039 * 3040 * This routine is to parse the SLI4 link attention type and translate it 3041 * into the base driver's link attention type coding. 3042 * 3043 * Return: Link attention type in terms of base driver's coding. 3044 **/ 3045static uint8_t 3046lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3047 struct lpfc_acqe_link *acqe_link) 3048{ 3049 uint8_t att_type; 3050 3051 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3052 case LPFC_ASYNC_LINK_STATUS_DOWN: 3053 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3054 att_type = AT_LINK_DOWN; 3055 break; 3056 case LPFC_ASYNC_LINK_STATUS_UP: 3057 /* Ignore physical link up events - wait for logical link up */ 3058 att_type = AT_RESERVED; 3059 break; 3060 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3061 att_type = AT_LINK_UP; 3062 break; 3063 default: 3064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3065 "0399 Invalid link attention type: x%x\n", 3066 bf_get(lpfc_acqe_link_status, acqe_link)); 3067 att_type = AT_RESERVED; 3068 break; 3069 } 3070 return att_type; 3071} 3072 3073/** 3074 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3075 * @phba: pointer to lpfc hba data structure. 3076 * @acqe_link: pointer to the async link completion queue entry. 3077 * 3078 * This routine is to parse the SLI4 link-attention link speed and translate 3079 * it into the base driver's link-attention link speed coding. 3080 * 3081 * Return: Link-attention link speed in terms of base driver's coding. 3082 **/ 3083static uint8_t 3084lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3085 struct lpfc_acqe_link *acqe_link) 3086{ 3087 uint8_t link_speed; 3088 3089 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3090 case LPFC_ASYNC_LINK_SPEED_ZERO: 3091 link_speed = LA_UNKNW_LINK; 3092 break; 3093 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3094 link_speed = LA_UNKNW_LINK; 3095 break; 3096 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3097 link_speed = LA_UNKNW_LINK; 3098 break; 3099 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3100 link_speed = LA_1GHZ_LINK; 3101 break; 3102 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3103 link_speed = LA_10GHZ_LINK; 3104 break; 3105 default: 3106 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3107 "0483 Invalid link-attention link speed: x%x\n", 3108 bf_get(lpfc_acqe_link_speed, acqe_link)); 3109 link_speed = LA_UNKNW_LINK; 3110 break; 3111 } 3112 return link_speed; 3113} 3114 3115/** 3116 * lpfc_sli4_async_link_evt - Process the asynchronous link event 3117 * @phba: pointer to lpfc hba data structure. 3118 * @acqe_link: pointer to the async link completion queue entry. 3119 * 3120 * This routine is to handle the SLI4 asynchronous link event. 3121 **/ 3122static void 3123lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3124 struct lpfc_acqe_link *acqe_link) 3125{ 3126 struct lpfc_dmabuf *mp; 3127 LPFC_MBOXQ_t *pmb; 3128 MAILBOX_t *mb; 3129 READ_LA_VAR *la; 3130 uint8_t att_type; 3131 3132 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3133 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP) 3134 return; 3135 phba->fcoe_eventtag = acqe_link->event_tag; 3136 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3137 if (!pmb) { 3138 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3139 "0395 The mboxq allocation failed\n"); 3140 return; 3141 } 3142 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3143 if (!mp) { 3144 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3145 "0396 The lpfc_dmabuf allocation failed\n"); 3146 goto out_free_pmb; 3147 } 3148 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3149 if (!mp->virt) { 3150 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3151 "0397 The mbuf allocation failed\n"); 3152 goto out_free_dmabuf; 3153 } 3154 3155 /* Cleanup any outstanding ELS commands */ 3156 lpfc_els_flush_all_cmd(phba); 3157 3158 /* Block ELS IOCBs until we have done process link event */ 3159 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3160 3161 /* Update link event statistics */ 3162 phba->sli.slistat.link_event++; 3163 3164 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */ 3165 lpfc_read_la(phba, pmb, mp); 3166 pmb->vport = phba->pport; 3167 3168 /* Parse and translate status field */ 3169 mb = &pmb->u.mb; 3170 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3171 3172 /* Parse and translate link attention fields */ 3173 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA; 3174 la->eventTag = acqe_link->event_tag; 3175 la->attType = att_type; 3176 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link); 3177 3178 /* Fake the the following irrelvant fields */ 3179 la->topology = TOPOLOGY_PT_PT; 3180 la->granted_AL_PA = 0; 3181 la->il = 0; 3182 la->pb = 0; 3183 la->fa = 0; 3184 la->mm = 0; 3185 3186 /* Keep the link status for extra SLI4 state machine reference */ 3187 phba->sli4_hba.link_state.speed = 3188 bf_get(lpfc_acqe_link_speed, acqe_link); 3189 phba->sli4_hba.link_state.duplex = 3190 bf_get(lpfc_acqe_link_duplex, acqe_link); 3191 phba->sli4_hba.link_state.status = 3192 bf_get(lpfc_acqe_link_status, acqe_link); 3193 phba->sli4_hba.link_state.physical = 3194 bf_get(lpfc_acqe_link_physical, acqe_link); 3195 phba->sli4_hba.link_state.fault = 3196 bf_get(lpfc_acqe_link_fault, acqe_link); 3197 phba->sli4_hba.link_state.logical_speed = 3198 bf_get(lpfc_acqe_qos_link_speed, acqe_link); 3199 3200 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3201 lpfc_mbx_cmpl_read_la(phba, pmb); 3202 3203 return; 3204 3205out_free_dmabuf: 3206 kfree(mp); 3207out_free_pmb: 3208 mempool_free(pmb, phba->mbox_mem_pool); 3209} 3210 3211/** 3212 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3213 * @vport: pointer to vport data structure. 3214 * 3215 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3216 * response to a CVL event. 3217 * 3218 * Return the pointer to the ndlp with the vport if successful, otherwise 3219 * return NULL. 3220 **/ 3221static struct lpfc_nodelist * 3222lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3223{ 3224 struct lpfc_nodelist *ndlp; 3225 struct Scsi_Host *shost; 3226 struct lpfc_hba *phba; 3227 3228 if (!vport) 3229 return NULL; 3230 phba = vport->phba; 3231 if (!phba) 3232 return NULL; 3233 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3234 if (!ndlp) { 3235 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3236 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3237 if (!ndlp) 3238 return 0; 3239 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3240 /* Set the node type */ 3241 ndlp->nlp_type |= NLP_FABRIC; 3242 /* Put ndlp onto node list */ 3243 lpfc_enqueue_node(vport, ndlp); 3244 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3245 /* re-setup ndlp without removing from node list */ 3246 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3247 if (!ndlp) 3248 return 0; 3249 } 3250 if ((phba->pport->port_state < LPFC_FLOGI) && 3251 (phba->pport->port_state != LPFC_VPORT_FAILED)) 3252 return NULL; 3253 /* If virtual link is not yet instantiated ignore CVL */ 3254 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 3255 && (vport->port_state != LPFC_VPORT_FAILED)) 3256 return NULL; 3257 shost = lpfc_shost_from_vport(vport); 3258 if (!shost) 3259 return NULL; 3260 lpfc_linkdown_port(vport); 3261 lpfc_cleanup_pending_mbox(vport); 3262 spin_lock_irq(shost->host_lock); 3263 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3264 spin_unlock_irq(shost->host_lock); 3265 3266 return ndlp; 3267} 3268 3269/** 3270 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3271 * @vport: pointer to lpfc hba data structure. 3272 * 3273 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3274 * response to a FCF dead event. 3275 **/ 3276static void 3277lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3278{ 3279 struct lpfc_vport **vports; 3280 int i; 3281 3282 vports = lpfc_create_vport_work_array(phba); 3283 if (vports) 3284 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3285 lpfc_sli4_perform_vport_cvl(vports[i]); 3286 lpfc_destroy_vport_work_array(phba, vports); 3287} 3288 3289/** 3290 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event 3291 * @phba: pointer to lpfc hba data structure. 3292 * @acqe_link: pointer to the async fcoe completion queue entry. 3293 * 3294 * This routine is to handle the SLI4 asynchronous fcoe event. 3295 **/ 3296static void 3297lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, 3298 struct lpfc_acqe_fcoe *acqe_fcoe) 3299{ 3300 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe); 3301 int rc; 3302 struct lpfc_vport *vport; 3303 struct lpfc_nodelist *ndlp; 3304 struct Scsi_Host *shost; 3305 int active_vlink_present; 3306 struct lpfc_vport **vports; 3307 int i; 3308 3309 phba->fc_eventTag = acqe_fcoe->event_tag; 3310 phba->fcoe_eventtag = acqe_fcoe->event_tag; 3311 switch (event_type) { 3312 case LPFC_FCOE_EVENT_TYPE_NEW_FCF: 3313 case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD: 3314 if (event_type == LPFC_FCOE_EVENT_TYPE_NEW_FCF) 3315 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3316 LOG_DISCOVERY, 3317 "2546 New FCF event, evt_tag:x%x, " 3318 "index:x%x\n", 3319 acqe_fcoe->event_tag, 3320 acqe_fcoe->index); 3321 else 3322 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 3323 LOG_DISCOVERY, 3324 "2788 FCF param modified event, " 3325 "evt_tag:x%x, index:x%x\n", 3326 acqe_fcoe->event_tag, 3327 acqe_fcoe->index); 3328 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3329 /* 3330 * During period of FCF discovery, read the FCF 3331 * table record indexed by the event to update 3332 * FCF roundrobin failover eligible FCF bmask. 3333 */ 3334 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3335 LOG_DISCOVERY, 3336 "2779 Read FCF (x%x) for updating " 3337 "roundrobin FCF failover bmask\n", 3338 acqe_fcoe->index); 3339 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index); 3340 } 3341 3342 /* If the FCF discovery is in progress, do nothing. */ 3343 spin_lock_irq(&phba->hbalock); 3344 if (phba->hba_flag & FCF_TS_INPROG) { 3345 spin_unlock_irq(&phba->hbalock); 3346 break; 3347 } 3348 /* If fast FCF failover rescan event is pending, do nothing */ 3349 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 3350 spin_unlock_irq(&phba->hbalock); 3351 break; 3352 } 3353 3354 /* If the FCF has been in discovered state, do nothing. */ 3355 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 3356 spin_unlock_irq(&phba->hbalock); 3357 break; 3358 } 3359 spin_unlock_irq(&phba->hbalock); 3360 3361 /* Otherwise, scan the entire FCF table and re-discover SAN */ 3362 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3363 "2770 Start FCF table scan per async FCF " 3364 "event, evt_tag:x%x, index:x%x\n", 3365 acqe_fcoe->event_tag, acqe_fcoe->index); 3366 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3367 LPFC_FCOE_FCF_GET_FIRST); 3368 if (rc) 3369 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3370 "2547 Issue FCF scan read FCF mailbox " 3371 "command failed (x%x)\n", rc); 3372 break; 3373 3374 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL: 3375 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3376 "2548 FCF Table full count 0x%x tag 0x%x\n", 3377 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe), 3378 acqe_fcoe->event_tag); 3379 break; 3380 3381 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD: 3382 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3383 "2549 FCF (x%x) disconnected from network, " 3384 "tag:x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag); 3385 /* 3386 * If we are in the middle of FCF failover process, clear 3387 * the corresponding FCF bit in the roundrobin bitmap. 3388 */ 3389 spin_lock_irq(&phba->hbalock); 3390 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3391 spin_unlock_irq(&phba->hbalock); 3392 /* Update FLOGI FCF failover eligible FCF bmask */ 3393 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index); 3394 break; 3395 } 3396 spin_unlock_irq(&phba->hbalock); 3397 3398 /* If the event is not for currently used fcf do nothing */ 3399 if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index) 3400 break; 3401 3402 /* 3403 * Otherwise, request the port to rediscover the entire FCF 3404 * table for a fast recovery from case that the current FCF 3405 * is no longer valid as we are not in the middle of FCF 3406 * failover process already. 3407 */ 3408 spin_lock_irq(&phba->hbalock); 3409 /* Mark the fast failover process in progress */ 3410 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 3411 spin_unlock_irq(&phba->hbalock); 3412 3413 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3414 "2771 Start FCF fast failover process due to " 3415 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 3416 "\n", acqe_fcoe->event_tag, acqe_fcoe->index); 3417 rc = lpfc_sli4_redisc_fcf_table(phba); 3418 if (rc) { 3419 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3420 LOG_DISCOVERY, 3421 "2772 Issue FCF rediscover mabilbox " 3422 "command failed, fail through to FCF " 3423 "dead event\n"); 3424 spin_lock_irq(&phba->hbalock); 3425 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 3426 spin_unlock_irq(&phba->hbalock); 3427 /* 3428 * Last resort will fail over by treating this 3429 * as a link down to FCF registration. 3430 */ 3431 lpfc_sli4_fcf_dead_failthrough(phba); 3432 } else { 3433 /* Reset FCF roundrobin bmask for new discovery */ 3434 memset(phba->fcf.fcf_rr_bmask, 0, 3435 sizeof(*phba->fcf.fcf_rr_bmask)); 3436 /* 3437 * Handling fast FCF failover to a DEAD FCF event is 3438 * considered equalivant to receiving CVL to all vports. 3439 */ 3440 lpfc_sli4_perform_all_vport_cvl(phba); 3441 } 3442 break; 3443 case LPFC_FCOE_EVENT_TYPE_CVL: 3444 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3445 "2718 Clear Virtual Link Received for VPI 0x%x" 3446 " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag); 3447 vport = lpfc_find_vport_by_vpid(phba, 3448 acqe_fcoe->index - phba->vpi_base); 3449 ndlp = lpfc_sli4_perform_vport_cvl(vport); 3450 if (!ndlp) 3451 break; 3452 active_vlink_present = 0; 3453 3454 vports = lpfc_create_vport_work_array(phba); 3455 if (vports) { 3456 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 3457 i++) { 3458 if ((!(vports[i]->fc_flag & 3459 FC_VPORT_CVL_RCVD)) && 3460 (vports[i]->port_state > LPFC_FDISC)) { 3461 active_vlink_present = 1; 3462 break; 3463 } 3464 } 3465 lpfc_destroy_vport_work_array(phba, vports); 3466 } 3467 3468 if (active_vlink_present) { 3469 /* 3470 * If there are other active VLinks present, 3471 * re-instantiate the Vlink using FDISC. 3472 */ 3473 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3474 shost = lpfc_shost_from_vport(vport); 3475 spin_lock_irq(shost->host_lock); 3476 ndlp->nlp_flag |= NLP_DELAY_TMO; 3477 spin_unlock_irq(shost->host_lock); 3478 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 3479 vport->port_state = LPFC_FDISC; 3480 } else { 3481 /* 3482 * Otherwise, we request port to rediscover 3483 * the entire FCF table for a fast recovery 3484 * from possible case that the current FCF 3485 * is no longer valid if we are not already 3486 * in the FCF failover process. 3487 */ 3488 spin_lock_irq(&phba->hbalock); 3489 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3490 spin_unlock_irq(&phba->hbalock); 3491 break; 3492 } 3493 /* Mark the fast failover process in progress */ 3494 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 3495 spin_unlock_irq(&phba->hbalock); 3496 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3497 LOG_DISCOVERY, 3498 "2773 Start FCF failover per CVL, " 3499 "evt_tag:x%x\n", acqe_fcoe->event_tag); 3500 rc = lpfc_sli4_redisc_fcf_table(phba); 3501 if (rc) { 3502 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3503 LOG_DISCOVERY, 3504 "2774 Issue FCF rediscover " 3505 "mabilbox command failed, " 3506 "through to CVL event\n"); 3507 spin_lock_irq(&phba->hbalock); 3508 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 3509 spin_unlock_irq(&phba->hbalock); 3510 /* 3511 * Last resort will be re-try on the 3512 * the current registered FCF entry. 3513 */ 3514 lpfc_retry_pport_discovery(phba); 3515 } else 3516 /* 3517 * Reset FCF roundrobin bmask for new 3518 * discovery. 3519 */ 3520 memset(phba->fcf.fcf_rr_bmask, 0, 3521 sizeof(*phba->fcf.fcf_rr_bmask)); 3522 } 3523 break; 3524 default: 3525 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3526 "0288 Unknown FCoE event type 0x%x event tag " 3527 "0x%x\n", event_type, acqe_fcoe->event_tag); 3528 break; 3529 } 3530} 3531 3532/** 3533 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 3534 * @phba: pointer to lpfc hba data structure. 3535 * @acqe_link: pointer to the async dcbx completion queue entry. 3536 * 3537 * This routine is to handle the SLI4 asynchronous dcbx event. 3538 **/ 3539static void 3540lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 3541 struct lpfc_acqe_dcbx *acqe_dcbx) 3542{ 3543 phba->fc_eventTag = acqe_dcbx->event_tag; 3544 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3545 "0290 The SLI4 DCBX asynchronous event is not " 3546 "handled yet\n"); 3547} 3548 3549/** 3550 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 3551 * @phba: pointer to lpfc hba data structure. 3552 * @acqe_link: pointer to the async grp5 completion queue entry. 3553 * 3554 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 3555 * is an asynchronous notified of a logical link speed change. The Port 3556 * reports the logical link speed in units of 10Mbps. 3557 **/ 3558static void 3559lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 3560 struct lpfc_acqe_grp5 *acqe_grp5) 3561{ 3562 uint16_t prev_ll_spd; 3563 3564 phba->fc_eventTag = acqe_grp5->event_tag; 3565 phba->fcoe_eventtag = acqe_grp5->event_tag; 3566 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 3567 phba->sli4_hba.link_state.logical_speed = 3568 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); 3569 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3570 "2789 GRP5 Async Event: Updating logical link speed " 3571 "from %dMbps to %dMbps\n", (prev_ll_spd * 10), 3572 (phba->sli4_hba.link_state.logical_speed*10)); 3573} 3574 3575/** 3576 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3577 * @phba: pointer to lpfc hba data structure. 3578 * 3579 * This routine is invoked by the worker thread to process all the pending 3580 * SLI4 asynchronous events. 3581 **/ 3582void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3583{ 3584 struct lpfc_cq_event *cq_event; 3585 3586 /* First, declare the async event has been handled */ 3587 spin_lock_irq(&phba->hbalock); 3588 phba->hba_flag &= ~ASYNC_EVENT; 3589 spin_unlock_irq(&phba->hbalock); 3590 /* Now, handle all the async events */ 3591 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3592 /* Get the first event from the head of the event queue */ 3593 spin_lock_irq(&phba->hbalock); 3594 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3595 cq_event, struct lpfc_cq_event, list); 3596 spin_unlock_irq(&phba->hbalock); 3597 /* Process the asynchronous event */ 3598 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3599 case LPFC_TRAILER_CODE_LINK: 3600 lpfc_sli4_async_link_evt(phba, 3601 &cq_event->cqe.acqe_link); 3602 break; 3603 case LPFC_TRAILER_CODE_FCOE: 3604 lpfc_sli4_async_fcoe_evt(phba, 3605 &cq_event->cqe.acqe_fcoe); 3606 break; 3607 case LPFC_TRAILER_CODE_DCBX: 3608 lpfc_sli4_async_dcbx_evt(phba, 3609 &cq_event->cqe.acqe_dcbx); 3610 break; 3611 case LPFC_TRAILER_CODE_GRP5: 3612 lpfc_sli4_async_grp5_evt(phba, 3613 &cq_event->cqe.acqe_grp5); 3614 break; 3615 default: 3616 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3617 "1804 Invalid asynchrous event code: " 3618 "x%x\n", bf_get(lpfc_trailer_code, 3619 &cq_event->cqe.mcqe_cmpl)); 3620 break; 3621 } 3622 /* Free the completion event processed to the free pool */ 3623 lpfc_sli4_cq_event_release(phba, cq_event); 3624 } 3625} 3626 3627/** 3628 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 3629 * @phba: pointer to lpfc hba data structure. 3630 * 3631 * This routine is invoked by the worker thread to process FCF table 3632 * rediscovery pending completion event. 3633 **/ 3634void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 3635{ 3636 int rc; 3637 3638 spin_lock_irq(&phba->hbalock); 3639 /* Clear FCF rediscovery timeout event */ 3640 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 3641 /* Clear driver fast failover FCF record flag */ 3642 phba->fcf.failover_rec.flag = 0; 3643 /* Set state for FCF fast failover */ 3644 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 3645 spin_unlock_irq(&phba->hbalock); 3646 3647 /* Scan FCF table from the first entry to re-discover SAN */ 3648 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3649 "2777 Start post-quiescent FCF table scan\n"); 3650 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 3651 if (rc) 3652 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3653 "2747 Issue FCF scan read FCF mailbox " 3654 "command failed 0x%x\n", rc); 3655} 3656 3657/** 3658 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3659 * @phba: pointer to lpfc hba data structure. 3660 * @dev_grp: The HBA PCI-Device group number. 3661 * 3662 * This routine is invoked to set up the per HBA PCI-Device group function 3663 * API jump table entries. 3664 * 3665 * Return: 0 if success, otherwise -ENODEV 3666 **/ 3667int 3668lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3669{ 3670 int rc; 3671 3672 /* Set up lpfc PCI-device group */ 3673 phba->pci_dev_grp = dev_grp; 3674 3675 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3676 if (dev_grp == LPFC_PCI_DEV_OC) 3677 phba->sli_rev = LPFC_SLI_REV4; 3678 3679 /* Set up device INIT API function jump table */ 3680 rc = lpfc_init_api_table_setup(phba, dev_grp); 3681 if (rc) 3682 return -ENODEV; 3683 /* Set up SCSI API function jump table */ 3684 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3685 if (rc) 3686 return -ENODEV; 3687 /* Set up SLI API function jump table */ 3688 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3689 if (rc) 3690 return -ENODEV; 3691 /* Set up MBOX API function jump table */ 3692 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3693 if (rc) 3694 return -ENODEV; 3695 3696 return 0; 3697} 3698 3699/** 3700 * lpfc_log_intr_mode - Log the active interrupt mode 3701 * @phba: pointer to lpfc hba data structure. 3702 * @intr_mode: active interrupt mode adopted. 3703 * 3704 * This routine it invoked to log the currently used active interrupt mode 3705 * to the device. 3706 **/ 3707static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3708{ 3709 switch (intr_mode) { 3710 case 0: 3711 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3712 "0470 Enable INTx interrupt mode.\n"); 3713 break; 3714 case 1: 3715 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3716 "0481 Enabled MSI interrupt mode.\n"); 3717 break; 3718 case 2: 3719 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3720 "0480 Enabled MSI-X interrupt mode.\n"); 3721 break; 3722 default: 3723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3724 "0482 Illegal interrupt mode.\n"); 3725 break; 3726 } 3727 return; 3728} 3729 3730/** 3731 * lpfc_enable_pci_dev - Enable a generic PCI device. 3732 * @phba: pointer to lpfc hba data structure. 3733 * 3734 * This routine is invoked to enable the PCI device that is common to all 3735 * PCI devices. 3736 * 3737 * Return codes 3738 * 0 - successful 3739 * other values - error 3740 **/ 3741static int 3742lpfc_enable_pci_dev(struct lpfc_hba *phba) 3743{ 3744 struct pci_dev *pdev; 3745 int bars; 3746 3747 /* Obtain PCI device reference */ 3748 if (!phba->pcidev) 3749 goto out_error; 3750 else 3751 pdev = phba->pcidev; 3752 /* Select PCI BARs */ 3753 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3754 /* Enable PCI device */ 3755 if (pci_enable_device_mem(pdev)) 3756 goto out_error; 3757 /* Request PCI resource for the device */ 3758 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3759 goto out_disable_device; 3760 /* Set up device as PCI master and save state for EEH */ 3761 pci_set_master(pdev); 3762 pci_try_set_mwi(pdev); 3763 pci_save_state(pdev); 3764 3765 return 0; 3766 3767out_disable_device: 3768 pci_disable_device(pdev); 3769out_error: 3770 return -ENODEV; 3771} 3772 3773/** 3774 * lpfc_disable_pci_dev - Disable a generic PCI device. 3775 * @phba: pointer to lpfc hba data structure. 3776 * 3777 * This routine is invoked to disable the PCI device that is common to all 3778 * PCI devices. 3779 **/ 3780static void 3781lpfc_disable_pci_dev(struct lpfc_hba *phba) 3782{ 3783 struct pci_dev *pdev; 3784 int bars; 3785 3786 /* Obtain PCI device reference */ 3787 if (!phba->pcidev) 3788 return; 3789 else 3790 pdev = phba->pcidev; 3791 /* Select PCI BARs */ 3792 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3793 /* Release PCI resource and disable PCI device */ 3794 pci_release_selected_regions(pdev, bars); 3795 pci_disable_device(pdev); 3796 /* Null out PCI private reference to driver */ 3797 pci_set_drvdata(pdev, NULL); 3798 3799 return; 3800} 3801 3802/** 3803 * lpfc_reset_hba - Reset a hba 3804 * @phba: pointer to lpfc hba data structure. 3805 * 3806 * This routine is invoked to reset a hba device. It brings the HBA 3807 * offline, performs a board restart, and then brings the board back 3808 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 3809 * on outstanding mailbox commands. 3810 **/ 3811void 3812lpfc_reset_hba(struct lpfc_hba *phba) 3813{ 3814 /* If resets are disabled then set error state and return. */ 3815 if (!phba->cfg_enable_hba_reset) { 3816 phba->link_state = LPFC_HBA_ERROR; 3817 return; 3818 } 3819 lpfc_offline_prep(phba); 3820 lpfc_offline(phba); 3821 lpfc_sli_brdrestart(phba); 3822 lpfc_online(phba); 3823 lpfc_unblock_mgmt_io(phba); 3824} 3825 3826/** 3827 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 3828 * @phba: pointer to lpfc hba data structure. 3829 * 3830 * This routine is invoked to set up the driver internal resources specific to 3831 * support the SLI-3 HBA device it attached to. 3832 * 3833 * Return codes 3834 * 0 - successful 3835 * other values - error 3836 **/ 3837static int 3838lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 3839{ 3840 struct lpfc_sli *psli; 3841 3842 /* 3843 * Initialize timers used by driver 3844 */ 3845 3846 /* Heartbeat timer */ 3847 init_timer(&phba->hb_tmofunc); 3848 phba->hb_tmofunc.function = lpfc_hb_timeout; 3849 phba->hb_tmofunc.data = (unsigned long)phba; 3850 3851 psli = &phba->sli; 3852 /* MBOX heartbeat timer */ 3853 init_timer(&psli->mbox_tmo); 3854 psli->mbox_tmo.function = lpfc_mbox_timeout; 3855 psli->mbox_tmo.data = (unsigned long) phba; 3856 /* FCP polling mode timer */ 3857 init_timer(&phba->fcp_poll_timer); 3858 phba->fcp_poll_timer.function = lpfc_poll_timeout; 3859 phba->fcp_poll_timer.data = (unsigned long) phba; 3860 /* Fabric block timer */ 3861 init_timer(&phba->fabric_block_timer); 3862 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3863 phba->fabric_block_timer.data = (unsigned long) phba; 3864 /* EA polling mode timer */ 3865 init_timer(&phba->eratt_poll); 3866 phba->eratt_poll.function = lpfc_poll_eratt; 3867 phba->eratt_poll.data = (unsigned long) phba; 3868 3869 /* Host attention work mask setup */ 3870 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 3871 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 3872 3873 /* Get all the module params for configuring this host */ 3874 lpfc_get_cfgparam(phba); 3875 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 3876 phba->menlo_flag |= HBA_MENLO_SUPPORT; 3877 /* check for menlo minimum sg count */ 3878 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 3879 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 3880 } 3881 3882 /* 3883 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3884 * used to create the sg_dma_buf_pool must be dynamically calculated. 3885 * 2 segments are added since the IOCB needs a command and response bde. 3886 */ 3887 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 3888 sizeof(struct fcp_rsp) + 3889 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 3890 3891 if (phba->cfg_enable_bg) { 3892 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 3893 phba->cfg_sg_dma_buf_size += 3894 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 3895 } 3896 3897 /* Also reinitialize the host templates with new values. */ 3898 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3899 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3900 3901 phba->max_vpi = LPFC_MAX_VPI; 3902 /* This will be set to correct value after config_port mbox */ 3903 phba->max_vports = 0; 3904 3905 /* 3906 * Initialize the SLI Layer to run with lpfc HBAs. 3907 */ 3908 lpfc_sli_setup(phba); 3909 lpfc_sli_queue_setup(phba); 3910 3911 /* Allocate device driver memory */ 3912 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 3913 return -ENOMEM; 3914 3915 return 0; 3916} 3917 3918/** 3919 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 3920 * @phba: pointer to lpfc hba data structure. 3921 * 3922 * This routine is invoked to unset the driver internal resources set up 3923 * specific for supporting the SLI-3 HBA device it attached to. 3924 **/ 3925static void 3926lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 3927{ 3928 /* Free device driver memory allocated */ 3929 lpfc_mem_free_all(phba); 3930 3931 return; 3932} 3933 3934/** 3935 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 3936 * @phba: pointer to lpfc hba data structure. 3937 * 3938 * This routine is invoked to set up the driver internal resources specific to 3939 * support the SLI-4 HBA device it attached to. 3940 * 3941 * Return codes 3942 * 0 - successful 3943 * other values - error 3944 **/ 3945static int 3946lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 3947{ 3948 struct lpfc_sli *psli; 3949 LPFC_MBOXQ_t *mboxq; 3950 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 3951 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 3952 struct lpfc_mqe *mqe; 3953 int longs; 3954 3955 /* Before proceed, wait for POST done and device ready */ 3956 rc = lpfc_sli4_post_status_check(phba); 3957 if (rc) 3958 return -ENODEV; 3959 3960 /* 3961 * Initialize timers used by driver 3962 */ 3963 3964 /* Heartbeat timer */ 3965 init_timer(&phba->hb_tmofunc); 3966 phba->hb_tmofunc.function = lpfc_hb_timeout; 3967 phba->hb_tmofunc.data = (unsigned long)phba; 3968 3969 psli = &phba->sli; 3970 /* MBOX heartbeat timer */ 3971 init_timer(&psli->mbox_tmo); 3972 psli->mbox_tmo.function = lpfc_mbox_timeout; 3973 psli->mbox_tmo.data = (unsigned long) phba; 3974 /* Fabric block timer */ 3975 init_timer(&phba->fabric_block_timer); 3976 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3977 phba->fabric_block_timer.data = (unsigned long) phba; 3978 /* EA polling mode timer */ 3979 init_timer(&phba->eratt_poll); 3980 phba->eratt_poll.function = lpfc_poll_eratt; 3981 phba->eratt_poll.data = (unsigned long) phba; 3982 /* FCF rediscover timer */ 3983 init_timer(&phba->fcf.redisc_wait); 3984 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 3985 phba->fcf.redisc_wait.data = (unsigned long)phba; 3986 3987 /* 3988 * We need to do a READ_CONFIG mailbox command here before 3989 * calling lpfc_get_cfgparam. For VFs this will report the 3990 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 3991 * All of the resources allocated 3992 * for this Port are tied to these values. 3993 */ 3994 /* Get all the module params for configuring this host */ 3995 lpfc_get_cfgparam(phba); 3996 phba->max_vpi = LPFC_MAX_VPI; 3997 /* This will be set to correct value after the read_config mbox */ 3998 phba->max_vports = 0; 3999 4000 /* Program the default value of vlan_id and fc_map */ 4001 phba->valid_vlan = 0; 4002 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4003 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4004 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4005 4006 /* 4007 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4008 * used to create the sg_dma_buf_pool must be dynamically calculated. 4009 * 2 segments are added since the IOCB needs a command and response bde. 4010 * To insure that the scsi sgl does not cross a 4k page boundary only 4011 * sgl sizes of must be a power of 2. 4012 */ 4013 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 4014 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge))); 4015 /* Feature Level 1 hardware is limited to 2 pages */ 4016 if ((bf_get(lpfc_sli_intf_featurelevel1, &phba->sli4_hba.sli_intf) == 4017 LPFC_SLI_INTF_FEATURELEVEL1_1)) 4018 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4019 else 4020 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4021 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4022 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4023 dma_buf_size = dma_buf_size << 1) 4024 ; 4025 if (dma_buf_size == max_buf_size) 4026 phba->cfg_sg_seg_cnt = (dma_buf_size - 4027 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4028 (2 * sizeof(struct sli4_sge))) / 4029 sizeof(struct sli4_sge); 4030 phba->cfg_sg_dma_buf_size = dma_buf_size; 4031 4032 /* Initialize buffer queue management fields */ 4033 hbq_count = lpfc_sli_hbq_count(); 4034 for (i = 0; i < hbq_count; ++i) 4035 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4036 INIT_LIST_HEAD(&phba->rb_pend_list); 4037 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4038 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4039 4040 /* 4041 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4042 */ 4043 /* Initialize the Abort scsi buffer list used by driver */ 4044 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4045 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4046 /* This abort list used by worker thread */ 4047 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4048 4049 /* 4050 * Initialize dirver internal slow-path work queues 4051 */ 4052 4053 /* Driver internel slow-path CQ Event pool */ 4054 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4055 /* Response IOCB work queue list */ 4056 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4057 /* Asynchronous event CQ Event work queue list */ 4058 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4059 /* Fast-path XRI aborted CQ Event work queue list */ 4060 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4061 /* Slow-path XRI aborted CQ Event work queue list */ 4062 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4063 /* Receive queue CQ Event work queue list */ 4064 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4065 4066 /* Initialize the driver internal SLI layer lists. */ 4067 lpfc_sli_setup(phba); 4068 lpfc_sli_queue_setup(phba); 4069 4070 /* Allocate device driver memory */ 4071 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4072 if (rc) 4073 return -ENOMEM; 4074 4075 /* Create the bootstrap mailbox command */ 4076 rc = lpfc_create_bootstrap_mbox(phba); 4077 if (unlikely(rc)) 4078 goto out_free_mem; 4079 4080 /* Set up the host's endian order with the device. */ 4081 rc = lpfc_setup_endian_order(phba); 4082 if (unlikely(rc)) 4083 goto out_free_bsmbx; 4084 4085 rc = lpfc_sli4_fw_cfg_check(phba); 4086 if (unlikely(rc)) 4087 goto out_free_bsmbx; 4088 4089 /* Set up the hba's configuration parameters. */ 4090 rc = lpfc_sli4_read_config(phba); 4091 if (unlikely(rc)) 4092 goto out_free_bsmbx; 4093 4094 /* Perform a function reset */ 4095 rc = lpfc_pci_function_reset(phba); 4096 if (unlikely(rc)) 4097 goto out_free_bsmbx; 4098 4099 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4100 GFP_KERNEL); 4101 if (!mboxq) { 4102 rc = -ENOMEM; 4103 goto out_free_bsmbx; 4104 } 4105 4106 /* Get the Supported Pages. It is always available. */ 4107 lpfc_supported_pages(mboxq); 4108 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4109 if (unlikely(rc)) { 4110 rc = -EIO; 4111 mempool_free(mboxq, phba->mbox_mem_pool); 4112 goto out_free_bsmbx; 4113 } 4114 4115 mqe = &mboxq->u.mqe; 4116 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4117 LPFC_MAX_SUPPORTED_PAGES); 4118 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4119 switch (pn_page[i]) { 4120 case LPFC_SLI4_PARAMETERS: 4121 phba->sli4_hba.pc_sli4_params.supported = 1; 4122 break; 4123 default: 4124 break; 4125 } 4126 } 4127 4128 /* Read the port's SLI4 Parameters capabilities if supported. */ 4129 if (phba->sli4_hba.pc_sli4_params.supported) 4130 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4131 mempool_free(mboxq, phba->mbox_mem_pool); 4132 if (rc) { 4133 rc = -EIO; 4134 goto out_free_bsmbx; 4135 } 4136 /* Create all the SLI4 queues */ 4137 rc = lpfc_sli4_queue_create(phba); 4138 if (rc) 4139 goto out_free_bsmbx; 4140 4141 /* Create driver internal CQE event pool */ 4142 rc = lpfc_sli4_cq_event_pool_create(phba); 4143 if (rc) 4144 goto out_destroy_queue; 4145 4146 /* Initialize and populate the iocb list per host */ 4147 rc = lpfc_init_sgl_list(phba); 4148 if (rc) { 4149 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4150 "1400 Failed to initialize sgl list.\n"); 4151 goto out_destroy_cq_event_pool; 4152 } 4153 rc = lpfc_init_active_sgl_array(phba); 4154 if (rc) { 4155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4156 "1430 Failed to initialize sgl list.\n"); 4157 goto out_free_sgl_list; 4158 } 4159 4160 rc = lpfc_sli4_init_rpi_hdrs(phba); 4161 if (rc) { 4162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4163 "1432 Failed to initialize rpi headers.\n"); 4164 goto out_free_active_sgl; 4165 } 4166 4167 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 4168 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 4169 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 4170 GFP_KERNEL); 4171 if (!phba->fcf.fcf_rr_bmask) { 4172 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4173 "2759 Failed allocate memory for FCF round " 4174 "robin failover bmask\n"); 4175 goto out_remove_rpi_hdrs; 4176 } 4177 4178 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 4179 phba->cfg_fcp_eq_count), GFP_KERNEL); 4180 if (!phba->sli4_hba.fcp_eq_hdl) { 4181 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4182 "2572 Failed allocate memory for fast-path " 4183 "per-EQ handle array\n"); 4184 goto out_free_fcf_rr_bmask; 4185 } 4186 4187 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 4188 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 4189 if (!phba->sli4_hba.msix_entries) { 4190 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4191 "2573 Failed allocate memory for msi-x " 4192 "interrupt vector entries\n"); 4193 goto out_free_fcp_eq_hdl; 4194 } 4195 4196 return rc; 4197 4198out_free_fcp_eq_hdl: 4199 kfree(phba->sli4_hba.fcp_eq_hdl); 4200out_free_fcf_rr_bmask: 4201 kfree(phba->fcf.fcf_rr_bmask); 4202out_remove_rpi_hdrs: 4203 lpfc_sli4_remove_rpi_hdrs(phba); 4204out_free_active_sgl: 4205 lpfc_free_active_sgl(phba); 4206out_free_sgl_list: 4207 lpfc_free_sgl_list(phba); 4208out_destroy_cq_event_pool: 4209 lpfc_sli4_cq_event_pool_destroy(phba); 4210out_destroy_queue: 4211 lpfc_sli4_queue_destroy(phba); 4212out_free_bsmbx: 4213 lpfc_destroy_bootstrap_mbox(phba); 4214out_free_mem: 4215 lpfc_mem_free(phba); 4216 return rc; 4217} 4218 4219/** 4220 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 4221 * @phba: pointer to lpfc hba data structure. 4222 * 4223 * This routine is invoked to unset the driver internal resources set up 4224 * specific for supporting the SLI-4 HBA device it attached to. 4225 **/ 4226static void 4227lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 4228{ 4229 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4230 4231 /* Free memory allocated for msi-x interrupt vector entries */ 4232 kfree(phba->sli4_hba.msix_entries); 4233 4234 /* Free memory allocated for fast-path work queue handles */ 4235 kfree(phba->sli4_hba.fcp_eq_hdl); 4236 4237 /* Free the allocated rpi headers. */ 4238 lpfc_sli4_remove_rpi_hdrs(phba); 4239 lpfc_sli4_remove_rpis(phba); 4240 4241 /* Free eligible FCF index bmask */ 4242 kfree(phba->fcf.fcf_rr_bmask); 4243 4244 /* Free the ELS sgl list */ 4245 lpfc_free_active_sgl(phba); 4246 lpfc_free_sgl_list(phba); 4247 4248 /* Free the SCSI sgl management array */ 4249 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4250 4251 /* Free the SLI4 queues */ 4252 lpfc_sli4_queue_destroy(phba); 4253 4254 /* Free the completion queue EQ event pool */ 4255 lpfc_sli4_cq_event_release_all(phba); 4256 lpfc_sli4_cq_event_pool_destroy(phba); 4257 4258 /* Free the bsmbx region. */ 4259 lpfc_destroy_bootstrap_mbox(phba); 4260 4261 /* Free the SLI Layer memory with SLI4 HBAs */ 4262 lpfc_mem_free_all(phba); 4263 4264 /* Free the current connect table */ 4265 list_for_each_entry_safe(conn_entry, next_conn_entry, 4266 &phba->fcf_conn_rec_list, list) { 4267 list_del_init(&conn_entry->list); 4268 kfree(conn_entry); 4269 } 4270 4271 return; 4272} 4273 4274/** 4275 * lpfc_init_api_table_setup - Set up init api fucntion jump table 4276 * @phba: The hba struct for which this call is being executed. 4277 * @dev_grp: The HBA PCI-Device group number. 4278 * 4279 * This routine sets up the device INIT interface API function jump table 4280 * in @phba struct. 4281 * 4282 * Returns: 0 - success, -ENODEV - failure. 4283 **/ 4284int 4285lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4286{ 4287 phba->lpfc_hba_init_link = lpfc_hba_init_link; 4288 phba->lpfc_hba_down_link = lpfc_hba_down_link; 4289 switch (dev_grp) { 4290 case LPFC_PCI_DEV_LP: 4291 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 4292 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 4293 phba->lpfc_stop_port = lpfc_stop_port_s3; 4294 break; 4295 case LPFC_PCI_DEV_OC: 4296 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 4297 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 4298 phba->lpfc_stop_port = lpfc_stop_port_s4; 4299 break; 4300 default: 4301 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4302 "1431 Invalid HBA PCI-device group: 0x%x\n", 4303 dev_grp); 4304 return -ENODEV; 4305 break; 4306 } 4307 return 0; 4308} 4309 4310/** 4311 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 4312 * @phba: pointer to lpfc hba data structure. 4313 * 4314 * This routine is invoked to set up the driver internal resources before the 4315 * device specific resource setup to support the HBA device it attached to. 4316 * 4317 * Return codes 4318 * 0 - successful 4319 * other values - error 4320 **/ 4321static int 4322lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 4323{ 4324 /* 4325 * Driver resources common to all SLI revisions 4326 */ 4327 atomic_set(&phba->fast_event_count, 0); 4328 spin_lock_init(&phba->hbalock); 4329 4330 /* Initialize ndlp management spinlock */ 4331 spin_lock_init(&phba->ndlp_lock); 4332 4333 INIT_LIST_HEAD(&phba->port_list); 4334 INIT_LIST_HEAD(&phba->work_list); 4335 init_waitqueue_head(&phba->wait_4_mlo_m_q); 4336 4337 /* Initialize the wait queue head for the kernel thread */ 4338 init_waitqueue_head(&phba->work_waitq); 4339 4340 /* Initialize the scsi buffer list used by driver for scsi IO */ 4341 spin_lock_init(&phba->scsi_buf_list_lock); 4342 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 4343 4344 /* Initialize the fabric iocb list */ 4345 INIT_LIST_HEAD(&phba->fabric_iocb_list); 4346 4347 /* Initialize list to save ELS buffers */ 4348 INIT_LIST_HEAD(&phba->elsbuf); 4349 4350 /* Initialize FCF connection rec list */ 4351 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 4352 4353 return 0; 4354} 4355 4356/** 4357 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 4358 * @phba: pointer to lpfc hba data structure. 4359 * 4360 * This routine is invoked to set up the driver internal resources after the 4361 * device specific resource setup to support the HBA device it attached to. 4362 * 4363 * Return codes 4364 * 0 - successful 4365 * other values - error 4366 **/ 4367static int 4368lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 4369{ 4370 int error; 4371 4372 /* Startup the kernel thread for this host adapter. */ 4373 phba->worker_thread = kthread_run(lpfc_do_work, phba, 4374 "lpfc_worker_%d", phba->brd_no); 4375 if (IS_ERR(phba->worker_thread)) { 4376 error = PTR_ERR(phba->worker_thread); 4377 return error; 4378 } 4379 4380 return 0; 4381} 4382 4383/** 4384 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 4385 * @phba: pointer to lpfc hba data structure. 4386 * 4387 * This routine is invoked to unset the driver internal resources set up after 4388 * the device specific resource setup for supporting the HBA device it 4389 * attached to. 4390 **/ 4391static void 4392lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 4393{ 4394 /* Stop kernel worker thread */ 4395 kthread_stop(phba->worker_thread); 4396} 4397 4398/** 4399 * lpfc_free_iocb_list - Free iocb list. 4400 * @phba: pointer to lpfc hba data structure. 4401 * 4402 * This routine is invoked to free the driver's IOCB list and memory. 4403 **/ 4404static void 4405lpfc_free_iocb_list(struct lpfc_hba *phba) 4406{ 4407 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 4408 4409 spin_lock_irq(&phba->hbalock); 4410 list_for_each_entry_safe(iocbq_entry, iocbq_next, 4411 &phba->lpfc_iocb_list, list) { 4412 list_del(&iocbq_entry->list); 4413 kfree(iocbq_entry); 4414 phba->total_iocbq_bufs--; 4415 } 4416 spin_unlock_irq(&phba->hbalock); 4417 4418 return; 4419} 4420 4421/** 4422 * lpfc_init_iocb_list - Allocate and initialize iocb list. 4423 * @phba: pointer to lpfc hba data structure. 4424 * 4425 * This routine is invoked to allocate and initizlize the driver's IOCB 4426 * list and set up the IOCB tag array accordingly. 4427 * 4428 * Return codes 4429 * 0 - successful 4430 * other values - error 4431 **/ 4432static int 4433lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 4434{ 4435 struct lpfc_iocbq *iocbq_entry = NULL; 4436 uint16_t iotag; 4437 int i; 4438 4439 /* Initialize and populate the iocb list per host. */ 4440 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 4441 for (i = 0; i < iocb_count; i++) { 4442 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 4443 if (iocbq_entry == NULL) { 4444 printk(KERN_ERR "%s: only allocated %d iocbs of " 4445 "expected %d count. Unloading driver.\n", 4446 __func__, i, LPFC_IOCB_LIST_CNT); 4447 goto out_free_iocbq; 4448 } 4449 4450 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 4451 if (iotag == 0) { 4452 kfree(iocbq_entry); 4453 printk(KERN_ERR "%s: failed to allocate IOTAG. " 4454 "Unloading driver.\n", __func__); 4455 goto out_free_iocbq; 4456 } 4457 iocbq_entry->sli4_xritag = NO_XRI; 4458 4459 spin_lock_irq(&phba->hbalock); 4460 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 4461 phba->total_iocbq_bufs++; 4462 spin_unlock_irq(&phba->hbalock); 4463 } 4464 4465 return 0; 4466 4467out_free_iocbq: 4468 lpfc_free_iocb_list(phba); 4469 4470 return -ENOMEM; 4471} 4472 4473/** 4474 * lpfc_free_sgl_list - Free sgl list. 4475 * @phba: pointer to lpfc hba data structure. 4476 * 4477 * This routine is invoked to free the driver's sgl list and memory. 4478 **/ 4479static void 4480lpfc_free_sgl_list(struct lpfc_hba *phba) 4481{ 4482 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 4483 LIST_HEAD(sglq_list); 4484 4485 spin_lock_irq(&phba->hbalock); 4486 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 4487 spin_unlock_irq(&phba->hbalock); 4488 4489 list_for_each_entry_safe(sglq_entry, sglq_next, 4490 &sglq_list, list) { 4491 list_del(&sglq_entry->list); 4492 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 4493 kfree(sglq_entry); 4494 phba->sli4_hba.total_sglq_bufs--; 4495 } 4496 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4497} 4498 4499/** 4500 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 4501 * @phba: pointer to lpfc hba data structure. 4502 * 4503 * This routine is invoked to allocate the driver's active sgl memory. 4504 * This array will hold the sglq_entry's for active IOs. 4505 **/ 4506static int 4507lpfc_init_active_sgl_array(struct lpfc_hba *phba) 4508{ 4509 int size; 4510 size = sizeof(struct lpfc_sglq *); 4511 size *= phba->sli4_hba.max_cfg_param.max_xri; 4512 4513 phba->sli4_hba.lpfc_sglq_active_list = 4514 kzalloc(size, GFP_KERNEL); 4515 if (!phba->sli4_hba.lpfc_sglq_active_list) 4516 return -ENOMEM; 4517 return 0; 4518} 4519 4520/** 4521 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 4522 * @phba: pointer to lpfc hba data structure. 4523 * 4524 * This routine is invoked to walk through the array of active sglq entries 4525 * and free all of the resources. 4526 * This is just a place holder for now. 4527 **/ 4528static void 4529lpfc_free_active_sgl(struct lpfc_hba *phba) 4530{ 4531 kfree(phba->sli4_hba.lpfc_sglq_active_list); 4532} 4533 4534/** 4535 * lpfc_init_sgl_list - Allocate and initialize sgl list. 4536 * @phba: pointer to lpfc hba data structure. 4537 * 4538 * This routine is invoked to allocate and initizlize the driver's sgl 4539 * list and set up the sgl xritag tag array accordingly. 4540 * 4541 * Return codes 4542 * 0 - successful 4543 * other values - error 4544 **/ 4545static int 4546lpfc_init_sgl_list(struct lpfc_hba *phba) 4547{ 4548 struct lpfc_sglq *sglq_entry = NULL; 4549 int i; 4550 int els_xri_cnt; 4551 4552 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 4553 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4554 "2400 lpfc_init_sgl_list els %d.\n", 4555 els_xri_cnt); 4556 /* Initialize and populate the sglq list per host/VF. */ 4557 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 4558 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 4559 4560 /* Sanity check on XRI management */ 4561 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 4562 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4563 "2562 No room left for SCSI XRI allocation: " 4564 "max_xri=%d, els_xri=%d\n", 4565 phba->sli4_hba.max_cfg_param.max_xri, 4566 els_xri_cnt); 4567 return -ENOMEM; 4568 } 4569 4570 /* Allocate memory for the ELS XRI management array */ 4571 phba->sli4_hba.lpfc_els_sgl_array = 4572 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 4573 GFP_KERNEL); 4574 4575 if (!phba->sli4_hba.lpfc_els_sgl_array) { 4576 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4577 "2401 Failed to allocate memory for ELS " 4578 "XRI management array of size %d.\n", 4579 els_xri_cnt); 4580 return -ENOMEM; 4581 } 4582 4583 /* Keep the SCSI XRI into the XRI management array */ 4584 phba->sli4_hba.scsi_xri_max = 4585 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 4586 phba->sli4_hba.scsi_xri_cnt = 0; 4587 4588 phba->sli4_hba.lpfc_scsi_psb_array = 4589 kzalloc((sizeof(struct lpfc_scsi_buf *) * 4590 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 4591 4592 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 4593 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4594 "2563 Failed to allocate memory for SCSI " 4595 "XRI management array of size %d.\n", 4596 phba->sli4_hba.scsi_xri_max); 4597 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4598 return -ENOMEM; 4599 } 4600 4601 for (i = 0; i < els_xri_cnt; i++) { 4602 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 4603 if (sglq_entry == NULL) { 4604 printk(KERN_ERR "%s: only allocated %d sgls of " 4605 "expected %d count. Unloading driver.\n", 4606 __func__, i, els_xri_cnt); 4607 goto out_free_mem; 4608 } 4609 4610 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba); 4611 if (sglq_entry->sli4_xritag == NO_XRI) { 4612 kfree(sglq_entry); 4613 printk(KERN_ERR "%s: failed to allocate XRI.\n" 4614 "Unloading driver.\n", __func__); 4615 goto out_free_mem; 4616 } 4617 sglq_entry->buff_type = GEN_BUFF_TYPE; 4618 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 4619 if (sglq_entry->virt == NULL) { 4620 kfree(sglq_entry); 4621 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 4622 "Unloading driver.\n", __func__); 4623 goto out_free_mem; 4624 } 4625 sglq_entry->sgl = sglq_entry->virt; 4626 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 4627 4628 /* The list order is used by later block SGL registraton */ 4629 spin_lock_irq(&phba->hbalock); 4630 sglq_entry->state = SGL_FREED; 4631 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 4632 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 4633 phba->sli4_hba.total_sglq_bufs++; 4634 spin_unlock_irq(&phba->hbalock); 4635 } 4636 return 0; 4637 4638out_free_mem: 4639 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4640 lpfc_free_sgl_list(phba); 4641 return -ENOMEM; 4642} 4643 4644/** 4645 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 4646 * @phba: pointer to lpfc hba data structure. 4647 * 4648 * This routine is invoked to post rpi header templates to the 4649 * HBA consistent with the SLI-4 interface spec. This routine 4650 * posts a PAGE_SIZE memory region to the port to hold up to 4651 * PAGE_SIZE modulo 64 rpi context headers. 4652 * No locks are held here because this is an initialization routine 4653 * called only from probe or lpfc_online when interrupts are not 4654 * enabled and the driver is reinitializing the device. 4655 * 4656 * Return codes 4657 * 0 - successful 4658 * -ENOMEM - No availble memory 4659 * -EIO - The mailbox failed to complete successfully. 4660 **/ 4661int 4662lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 4663{ 4664 int rc = 0; 4665 int longs; 4666 uint16_t rpi_count; 4667 struct lpfc_rpi_hdr *rpi_hdr; 4668 4669 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 4670 4671 /* 4672 * Provision an rpi bitmask range for discovery. The total count 4673 * is the difference between max and base + 1. 4674 */ 4675 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base + 4676 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4677 4678 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG; 4679 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long), 4680 GFP_KERNEL); 4681 if (!phba->sli4_hba.rpi_bmask) 4682 return -ENOMEM; 4683 4684 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 4685 if (!rpi_hdr) { 4686 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 4687 "0391 Error during rpi post operation\n"); 4688 lpfc_sli4_remove_rpis(phba); 4689 rc = -ENODEV; 4690 } 4691 4692 return rc; 4693} 4694 4695/** 4696 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 4697 * @phba: pointer to lpfc hba data structure. 4698 * 4699 * This routine is invoked to allocate a single 4KB memory region to 4700 * support rpis and stores them in the phba. This single region 4701 * provides support for up to 64 rpis. The region is used globally 4702 * by the device. 4703 * 4704 * Returns: 4705 * A valid rpi hdr on success. 4706 * A NULL pointer on any failure. 4707 **/ 4708struct lpfc_rpi_hdr * 4709lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 4710{ 4711 uint16_t rpi_limit, curr_rpi_range; 4712 struct lpfc_dmabuf *dmabuf; 4713 struct lpfc_rpi_hdr *rpi_hdr; 4714 4715 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 4716 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4717 4718 spin_lock_irq(&phba->hbalock); 4719 curr_rpi_range = phba->sli4_hba.next_rpi; 4720 spin_unlock_irq(&phba->hbalock); 4721 4722 /* 4723 * The port has a limited number of rpis. The increment here 4724 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 4725 * and to allow the full max_rpi range per port. 4726 */ 4727 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 4728 return NULL; 4729 4730 /* 4731 * First allocate the protocol header region for the port. The 4732 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 4733 */ 4734 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4735 if (!dmabuf) 4736 return NULL; 4737 4738 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4739 LPFC_HDR_TEMPLATE_SIZE, 4740 &dmabuf->phys, 4741 GFP_KERNEL); 4742 if (!dmabuf->virt) { 4743 rpi_hdr = NULL; 4744 goto err_free_dmabuf; 4745 } 4746 4747 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 4748 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 4749 rpi_hdr = NULL; 4750 goto err_free_coherent; 4751 } 4752 4753 /* Save the rpi header data for cleanup later. */ 4754 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 4755 if (!rpi_hdr) 4756 goto err_free_coherent; 4757 4758 rpi_hdr->dmabuf = dmabuf; 4759 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 4760 rpi_hdr->page_count = 1; 4761 spin_lock_irq(&phba->hbalock); 4762 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi; 4763 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 4764 4765 /* 4766 * The next_rpi stores the next module-64 rpi value to post 4767 * in any subsequent rpi memory region postings. 4768 */ 4769 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT; 4770 spin_unlock_irq(&phba->hbalock); 4771 return rpi_hdr; 4772 4773 err_free_coherent: 4774 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 4775 dmabuf->virt, dmabuf->phys); 4776 err_free_dmabuf: 4777 kfree(dmabuf); 4778 return NULL; 4779} 4780 4781/** 4782 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 4783 * @phba: pointer to lpfc hba data structure. 4784 * 4785 * This routine is invoked to remove all memory resources allocated 4786 * to support rpis. This routine presumes the caller has released all 4787 * rpis consumed by fabric or port logins and is prepared to have 4788 * the header pages removed. 4789 **/ 4790void 4791lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 4792{ 4793 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 4794 4795 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 4796 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 4797 list_del(&rpi_hdr->list); 4798 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 4799 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 4800 kfree(rpi_hdr->dmabuf); 4801 kfree(rpi_hdr); 4802 } 4803 4804 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4805 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask)); 4806} 4807 4808/** 4809 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 4810 * @pdev: pointer to pci device data structure. 4811 * 4812 * This routine is invoked to allocate the driver hba data structure for an 4813 * HBA device. If the allocation is successful, the phba reference to the 4814 * PCI device data structure is set. 4815 * 4816 * Return codes 4817 * pointer to @phba - successful 4818 * NULL - error 4819 **/ 4820static struct lpfc_hba * 4821lpfc_hba_alloc(struct pci_dev *pdev) 4822{ 4823 struct lpfc_hba *phba; 4824 4825 /* Allocate memory for HBA structure */ 4826 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 4827 if (!phba) { 4828 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 4829 return NULL; 4830 } 4831 4832 /* Set reference to PCI device in HBA structure */ 4833 phba->pcidev = pdev; 4834 4835 /* Assign an unused board number */ 4836 phba->brd_no = lpfc_get_instance(); 4837 if (phba->brd_no < 0) { 4838 kfree(phba); 4839 return NULL; 4840 } 4841 4842 spin_lock_init(&phba->ct_ev_lock); 4843 INIT_LIST_HEAD(&phba->ct_ev_waiters); 4844 4845 return phba; 4846} 4847 4848/** 4849 * lpfc_hba_free - Free driver hba data structure with a device. 4850 * @phba: pointer to lpfc hba data structure. 4851 * 4852 * This routine is invoked to free the driver hba data structure with an 4853 * HBA device. 4854 **/ 4855static void 4856lpfc_hba_free(struct lpfc_hba *phba) 4857{ 4858 /* Release the driver assigned board number */ 4859 idr_remove(&lpfc_hba_index, phba->brd_no); 4860 4861 kfree(phba); 4862 return; 4863} 4864 4865/** 4866 * lpfc_create_shost - Create hba physical port with associated scsi host. 4867 * @phba: pointer to lpfc hba data structure. 4868 * 4869 * This routine is invoked to create HBA physical port and associate a SCSI 4870 * host with it. 4871 * 4872 * Return codes 4873 * 0 - successful 4874 * other values - error 4875 **/ 4876static int 4877lpfc_create_shost(struct lpfc_hba *phba) 4878{ 4879 struct lpfc_vport *vport; 4880 struct Scsi_Host *shost; 4881 4882 /* Initialize HBA FC structure */ 4883 phba->fc_edtov = FF_DEF_EDTOV; 4884 phba->fc_ratov = FF_DEF_RATOV; 4885 phba->fc_altov = FF_DEF_ALTOV; 4886 phba->fc_arbtov = FF_DEF_ARBTOV; 4887 4888 atomic_set(&phba->sdev_cnt, 0); 4889 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 4890 if (!vport) 4891 return -ENODEV; 4892 4893 shost = lpfc_shost_from_vport(vport); 4894 phba->pport = vport; 4895 lpfc_debugfs_initialize(vport); 4896 /* Put reference to SCSI host to driver's device private data */ 4897 pci_set_drvdata(phba->pcidev, shost); 4898 4899 return 0; 4900} 4901 4902/** 4903 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 4904 * @phba: pointer to lpfc hba data structure. 4905 * 4906 * This routine is invoked to destroy HBA physical port and the associated 4907 * SCSI host. 4908 **/ 4909static void 4910lpfc_destroy_shost(struct lpfc_hba *phba) 4911{ 4912 struct lpfc_vport *vport = phba->pport; 4913 4914 /* Destroy physical port that associated with the SCSI host */ 4915 destroy_port(vport); 4916 4917 return; 4918} 4919 4920/** 4921 * lpfc_setup_bg - Setup Block guard structures and debug areas. 4922 * @phba: pointer to lpfc hba data structure. 4923 * @shost: the shost to be used to detect Block guard settings. 4924 * 4925 * This routine sets up the local Block guard protocol settings for @shost. 4926 * This routine also allocates memory for debugging bg buffers. 4927 **/ 4928static void 4929lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 4930{ 4931 int pagecnt = 10; 4932 if (lpfc_prot_mask && lpfc_prot_guard) { 4933 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4934 "1478 Registering BlockGuard with the " 4935 "SCSI layer\n"); 4936 scsi_host_set_prot(shost, lpfc_prot_mask); 4937 scsi_host_set_guard(shost, lpfc_prot_guard); 4938 } 4939 if (!_dump_buf_data) { 4940 while (pagecnt) { 4941 spin_lock_init(&_dump_buf_lock); 4942 _dump_buf_data = 4943 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4944 if (_dump_buf_data) { 4945 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4946 "9043 BLKGRD: allocated %d pages for " 4947 "_dump_buf_data at 0x%p\n", 4948 (1 << pagecnt), _dump_buf_data); 4949 _dump_buf_data_order = pagecnt; 4950 memset(_dump_buf_data, 0, 4951 ((1 << PAGE_SHIFT) << pagecnt)); 4952 break; 4953 } else 4954 --pagecnt; 4955 } 4956 if (!_dump_buf_data_order) 4957 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4958 "9044 BLKGRD: ERROR unable to allocate " 4959 "memory for hexdump\n"); 4960 } else 4961 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4962 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 4963 "\n", _dump_buf_data); 4964 if (!_dump_buf_dif) { 4965 while (pagecnt) { 4966 _dump_buf_dif = 4967 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4968 if (_dump_buf_dif) { 4969 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4970 "9046 BLKGRD: allocated %d pages for " 4971 "_dump_buf_dif at 0x%p\n", 4972 (1 << pagecnt), _dump_buf_dif); 4973 _dump_buf_dif_order = pagecnt; 4974 memset(_dump_buf_dif, 0, 4975 ((1 << PAGE_SHIFT) << pagecnt)); 4976 break; 4977 } else 4978 --pagecnt; 4979 } 4980 if (!_dump_buf_dif_order) 4981 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4982 "9047 BLKGRD: ERROR unable to allocate " 4983 "memory for hexdump\n"); 4984 } else 4985 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4986 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 4987 _dump_buf_dif); 4988} 4989 4990/** 4991 * lpfc_post_init_setup - Perform necessary device post initialization setup. 4992 * @phba: pointer to lpfc hba data structure. 4993 * 4994 * This routine is invoked to perform all the necessary post initialization 4995 * setup for the device. 4996 **/ 4997static void 4998lpfc_post_init_setup(struct lpfc_hba *phba) 4999{ 5000 struct Scsi_Host *shost; 5001 struct lpfc_adapter_event_header adapter_event; 5002 5003 /* Get the default values for Model Name and Description */ 5004 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5005 5006 /* 5007 * hba setup may have changed the hba_queue_depth so we need to 5008 * adjust the value of can_queue. 5009 */ 5010 shost = pci_get_drvdata(phba->pcidev); 5011 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5012 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5013 lpfc_setup_bg(phba, shost); 5014 5015 lpfc_host_attrib_init(shost); 5016 5017 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5018 spin_lock_irq(shost->host_lock); 5019 lpfc_poll_start_timer(phba); 5020 spin_unlock_irq(shost->host_lock); 5021 } 5022 5023 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5024 "0428 Perform SCSI scan\n"); 5025 /* Send board arrival event to upper layer */ 5026 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5027 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5028 fc_host_post_vendor_event(shost, fc_get_event_number(), 5029 sizeof(adapter_event), 5030 (char *) &adapter_event, 5031 LPFC_NL_VENDOR_ID); 5032 return; 5033} 5034 5035/** 5036 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5037 * @phba: pointer to lpfc hba data structure. 5038 * 5039 * This routine is invoked to set up the PCI device memory space for device 5040 * with SLI-3 interface spec. 5041 * 5042 * Return codes 5043 * 0 - successful 5044 * other values - error 5045 **/ 5046static int 5047lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5048{ 5049 struct pci_dev *pdev; 5050 unsigned long bar0map_len, bar2map_len; 5051 int i, hbq_count; 5052 void *ptr; 5053 int error = -ENODEV; 5054 5055 /* Obtain PCI device reference */ 5056 if (!phba->pcidev) 5057 return error; 5058 else 5059 pdev = phba->pcidev; 5060 5061 /* Set the device DMA mask size */ 5062 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5063 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5064 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5065 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5066 return error; 5067 } 5068 } 5069 5070 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5071 * required by each mapping. 5072 */ 5073 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5074 bar0map_len = pci_resource_len(pdev, 0); 5075 5076 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5077 bar2map_len = pci_resource_len(pdev, 2); 5078 5079 /* Map HBA SLIM to a kernel virtual address. */ 5080 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5081 if (!phba->slim_memmap_p) { 5082 dev_printk(KERN_ERR, &pdev->dev, 5083 "ioremap failed for SLIM memory.\n"); 5084 goto out; 5085 } 5086 5087 /* Map HBA Control Registers to a kernel virtual address. */ 5088 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5089 if (!phba->ctrl_regs_memmap_p) { 5090 dev_printk(KERN_ERR, &pdev->dev, 5091 "ioremap failed for HBA control registers.\n"); 5092 goto out_iounmap_slim; 5093 } 5094 5095 /* Allocate memory for SLI-2 structures */ 5096 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5097 SLI2_SLIM_SIZE, 5098 &phba->slim2p.phys, 5099 GFP_KERNEL); 5100 if (!phba->slim2p.virt) 5101 goto out_iounmap; 5102 5103 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5104 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5105 phba->mbox_ext = (phba->slim2p.virt + 5106 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5107 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5108 phba->IOCBs = (phba->slim2p.virt + 5109 offsetof(struct lpfc_sli2_slim, IOCBs)); 5110 5111 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5112 lpfc_sli_hbq_size(), 5113 &phba->hbqslimp.phys, 5114 GFP_KERNEL); 5115 if (!phba->hbqslimp.virt) 5116 goto out_free_slim; 5117 5118 hbq_count = lpfc_sli_hbq_count(); 5119 ptr = phba->hbqslimp.virt; 5120 for (i = 0; i < hbq_count; ++i) { 5121 phba->hbqs[i].hbq_virt = ptr; 5122 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5123 ptr += (lpfc_hbq_defs[i]->entry_count * 5124 sizeof(struct lpfc_hbq_entry)); 5125 } 5126 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5127 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5128 5129 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5130 5131 INIT_LIST_HEAD(&phba->rb_pend_list); 5132 5133 phba->MBslimaddr = phba->slim_memmap_p; 5134 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 5135 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 5136 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 5137 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 5138 5139 return 0; 5140 5141out_free_slim: 5142 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5143 phba->slim2p.virt, phba->slim2p.phys); 5144out_iounmap: 5145 iounmap(phba->ctrl_regs_memmap_p); 5146out_iounmap_slim: 5147 iounmap(phba->slim_memmap_p); 5148out: 5149 return error; 5150} 5151 5152/** 5153 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 5154 * @phba: pointer to lpfc hba data structure. 5155 * 5156 * This routine is invoked to unset the PCI device memory space for device 5157 * with SLI-3 interface spec. 5158 **/ 5159static void 5160lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 5161{ 5162 struct pci_dev *pdev; 5163 5164 /* Obtain PCI device reference */ 5165 if (!phba->pcidev) 5166 return; 5167 else 5168 pdev = phba->pcidev; 5169 5170 /* Free coherent DMA memory allocated */ 5171 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 5172 phba->hbqslimp.virt, phba->hbqslimp.phys); 5173 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5174 phba->slim2p.virt, phba->slim2p.phys); 5175 5176 /* I/O memory unmap */ 5177 iounmap(phba->ctrl_regs_memmap_p); 5178 iounmap(phba->slim_memmap_p); 5179 5180 return; 5181} 5182 5183/** 5184 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 5185 * @phba: pointer to lpfc hba data structure. 5186 * 5187 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 5188 * done and check status. 5189 * 5190 * Return 0 if successful, otherwise -ENODEV. 5191 **/ 5192int 5193lpfc_sli4_post_status_check(struct lpfc_hba *phba) 5194{ 5195 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg; 5196 int i, port_error = -ENODEV; 5197 5198 if (!phba->sli4_hba.STAregaddr) 5199 return -ENODEV; 5200 5201 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 5202 for (i = 0; i < 3000; i++) { 5203 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr); 5204 /* Encounter fatal POST error, break out */ 5205 if (bf_get(lpfc_hst_state_perr, &sta_reg)) { 5206 port_error = -ENODEV; 5207 break; 5208 } 5209 if (LPFC_POST_STAGE_ARMFW_READY == 5210 bf_get(lpfc_hst_state_port_status, &sta_reg)) { 5211 port_error = 0; 5212 break; 5213 } 5214 msleep(10); 5215 } 5216 5217 if (port_error) 5218 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5219 "1408 Failure HBA POST Status: sta_reg=0x%x, " 5220 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, " 5221 "dl=x%x, pstatus=x%x\n", sta_reg.word0, 5222 bf_get(lpfc_hst_state_perr, &sta_reg), 5223 bf_get(lpfc_hst_state_sfi, &sta_reg), 5224 bf_get(lpfc_hst_state_nip, &sta_reg), 5225 bf_get(lpfc_hst_state_ipc, &sta_reg), 5226 bf_get(lpfc_hst_state_xrom, &sta_reg), 5227 bf_get(lpfc_hst_state_dl, &sta_reg), 5228 bf_get(lpfc_hst_state_port_status, &sta_reg)); 5229 5230 /* Log device information */ 5231 phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr); 5232 if (bf_get(lpfc_sli_intf_valid, 5233 &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) { 5234 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5235 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, " 5236 "FeatureL1=0x%x, FeatureL2=0x%x\n", 5237 bf_get(lpfc_sli_intf_sli_family, 5238 &phba->sli4_hba.sli_intf), 5239 bf_get(lpfc_sli_intf_slirev, 5240 &phba->sli4_hba.sli_intf), 5241 bf_get(lpfc_sli_intf_featurelevel1, 5242 &phba->sli4_hba.sli_intf), 5243 bf_get(lpfc_sli_intf_featurelevel2, 5244 &phba->sli4_hba.sli_intf)); 5245 } 5246 phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr); 5247 phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr); 5248 /* With uncoverable error, log the error message and return error */ 5249 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr); 5250 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr); 5251 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 5252 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 5253 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5254 "1422 HBA Unrecoverable error: " 5255 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " 5256 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n", 5257 uerrlo_reg.word0, uerrhi_reg.word0, 5258 phba->sli4_hba.ue_mask_lo, 5259 phba->sli4_hba.ue_mask_hi); 5260 return -ENODEV; 5261 } 5262 5263 return port_error; 5264} 5265 5266/** 5267 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 5268 * @phba: pointer to lpfc hba data structure. 5269 * 5270 * This routine is invoked to set up SLI4 BAR0 PCI config space register 5271 * memory map. 5272 **/ 5273static void 5274lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba) 5275{ 5276 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 5277 LPFC_UERR_STATUS_LO; 5278 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 5279 LPFC_UERR_STATUS_HI; 5280 phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 5281 LPFC_UE_MASK_LO; 5282 phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 5283 LPFC_UE_MASK_HI; 5284 phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p + 5285 LPFC_SLI_INTF; 5286} 5287 5288/** 5289 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 5290 * @phba: pointer to lpfc hba data structure. 5291 * 5292 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 5293 * memory map. 5294 **/ 5295static void 5296lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 5297{ 5298 5299 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5300 LPFC_HST_STATE; 5301 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5302 LPFC_HST_ISR0; 5303 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5304 LPFC_HST_IMR0; 5305 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5306 LPFC_HST_ISCR0; 5307 return; 5308} 5309 5310/** 5311 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 5312 * @phba: pointer to lpfc hba data structure. 5313 * @vf: virtual function number 5314 * 5315 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 5316 * based on the given viftual function number, @vf. 5317 * 5318 * Return 0 if successful, otherwise -ENODEV. 5319 **/ 5320static int 5321lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 5322{ 5323 if (vf > LPFC_VIR_FUNC_MAX) 5324 return -ENODEV; 5325 5326 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5327 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 5328 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5329 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 5330 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5331 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 5332 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5333 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 5334 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5335 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 5336 return 0; 5337} 5338 5339/** 5340 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 5341 * @phba: pointer to lpfc hba data structure. 5342 * 5343 * This routine is invoked to create the bootstrap mailbox 5344 * region consistent with the SLI-4 interface spec. This 5345 * routine allocates all memory necessary to communicate 5346 * mailbox commands to the port and sets up all alignment 5347 * needs. No locks are expected to be held when calling 5348 * this routine. 5349 * 5350 * Return codes 5351 * 0 - successful 5352 * -ENOMEM - could not allocated memory. 5353 **/ 5354static int 5355lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 5356{ 5357 uint32_t bmbx_size; 5358 struct lpfc_dmabuf *dmabuf; 5359 struct dma_address *dma_address; 5360 uint32_t pa_addr; 5361 uint64_t phys_addr; 5362 5363 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5364 if (!dmabuf) 5365 return -ENOMEM; 5366 5367 /* 5368 * The bootstrap mailbox region is comprised of 2 parts 5369 * plus an alignment restriction of 16 bytes. 5370 */ 5371 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 5372 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5373 bmbx_size, 5374 &dmabuf->phys, 5375 GFP_KERNEL); 5376 if (!dmabuf->virt) { 5377 kfree(dmabuf); 5378 return -ENOMEM; 5379 } 5380 memset(dmabuf->virt, 0, bmbx_size); 5381 5382 /* 5383 * Initialize the bootstrap mailbox pointers now so that the register 5384 * operations are simple later. The mailbox dma address is required 5385 * to be 16-byte aligned. Also align the virtual memory as each 5386 * maibox is copied into the bmbx mailbox region before issuing the 5387 * command to the port. 5388 */ 5389 phba->sli4_hba.bmbx.dmabuf = dmabuf; 5390 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 5391 5392 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 5393 LPFC_ALIGN_16_BYTE); 5394 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 5395 LPFC_ALIGN_16_BYTE); 5396 5397 /* 5398 * Set the high and low physical addresses now. The SLI4 alignment 5399 * requirement is 16 bytes and the mailbox is posted to the port 5400 * as two 30-bit addresses. The other data is a bit marking whether 5401 * the 30-bit address is the high or low address. 5402 * Upcast bmbx aphys to 64bits so shift instruction compiles 5403 * clean on 32 bit machines. 5404 */ 5405 dma_address = &phba->sli4_hba.bmbx.dma_address; 5406 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 5407 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 5408 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 5409 LPFC_BMBX_BIT1_ADDR_HI); 5410 5411 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 5412 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 5413 LPFC_BMBX_BIT1_ADDR_LO); 5414 return 0; 5415} 5416 5417/** 5418 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 5419 * @phba: pointer to lpfc hba data structure. 5420 * 5421 * This routine is invoked to teardown the bootstrap mailbox 5422 * region and release all host resources. This routine requires 5423 * the caller to ensure all mailbox commands recovered, no 5424 * additional mailbox comands are sent, and interrupts are disabled 5425 * before calling this routine. 5426 * 5427 **/ 5428static void 5429lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 5430{ 5431 dma_free_coherent(&phba->pcidev->dev, 5432 phba->sli4_hba.bmbx.bmbx_size, 5433 phba->sli4_hba.bmbx.dmabuf->virt, 5434 phba->sli4_hba.bmbx.dmabuf->phys); 5435 5436 kfree(phba->sli4_hba.bmbx.dmabuf); 5437 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 5438} 5439 5440/** 5441 * lpfc_sli4_read_config - Get the config parameters. 5442 * @phba: pointer to lpfc hba data structure. 5443 * 5444 * This routine is invoked to read the configuration parameters from the HBA. 5445 * The configuration parameters are used to set the base and maximum values 5446 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 5447 * allocation for the port. 5448 * 5449 * Return codes 5450 * 0 - successful 5451 * -ENOMEM - No availble memory 5452 * -EIO - The mailbox failed to complete successfully. 5453 **/ 5454static int 5455lpfc_sli4_read_config(struct lpfc_hba *phba) 5456{ 5457 LPFC_MBOXQ_t *pmb; 5458 struct lpfc_mbx_read_config *rd_config; 5459 uint32_t rc = 0; 5460 5461 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5462 if (!pmb) { 5463 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5464 "2011 Unable to allocate memory for issuing " 5465 "SLI_CONFIG_SPECIAL mailbox command\n"); 5466 return -ENOMEM; 5467 } 5468 5469 lpfc_read_config(phba, pmb); 5470 5471 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 5472 if (rc != MBX_SUCCESS) { 5473 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5474 "2012 Mailbox failed , mbxCmd x%x " 5475 "READ_CONFIG, mbxStatus x%x\n", 5476 bf_get(lpfc_mqe_command, &pmb->u.mqe), 5477 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 5478 rc = -EIO; 5479 } else { 5480 rd_config = &pmb->u.mqe.un.rd_config; 5481 phba->sli4_hba.max_cfg_param.max_xri = 5482 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 5483 phba->sli4_hba.max_cfg_param.xri_base = 5484 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 5485 phba->sli4_hba.max_cfg_param.max_vpi = 5486 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 5487 phba->sli4_hba.max_cfg_param.vpi_base = 5488 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 5489 phba->sli4_hba.max_cfg_param.max_rpi = 5490 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 5491 phba->sli4_hba.max_cfg_param.rpi_base = 5492 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 5493 phba->sli4_hba.max_cfg_param.max_vfi = 5494 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 5495 phba->sli4_hba.max_cfg_param.vfi_base = 5496 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 5497 phba->sli4_hba.max_cfg_param.max_fcfi = 5498 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 5499 phba->sli4_hba.max_cfg_param.fcfi_base = 5500 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config); 5501 phba->sli4_hba.max_cfg_param.max_eq = 5502 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 5503 phba->sli4_hba.max_cfg_param.max_rq = 5504 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 5505 phba->sli4_hba.max_cfg_param.max_wq = 5506 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 5507 phba->sli4_hba.max_cfg_param.max_cq = 5508 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 5509 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 5510 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 5511 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 5512 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 5513 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 5514 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 5515 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 5516 phba->max_vports = phba->max_vpi; 5517 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5518 "2003 cfg params XRI(B:%d M:%d), " 5519 "VPI(B:%d M:%d) " 5520 "VFI(B:%d M:%d) " 5521 "RPI(B:%d M:%d) " 5522 "FCFI(B:%d M:%d)\n", 5523 phba->sli4_hba.max_cfg_param.xri_base, 5524 phba->sli4_hba.max_cfg_param.max_xri, 5525 phba->sli4_hba.max_cfg_param.vpi_base, 5526 phba->sli4_hba.max_cfg_param.max_vpi, 5527 phba->sli4_hba.max_cfg_param.vfi_base, 5528 phba->sli4_hba.max_cfg_param.max_vfi, 5529 phba->sli4_hba.max_cfg_param.rpi_base, 5530 phba->sli4_hba.max_cfg_param.max_rpi, 5531 phba->sli4_hba.max_cfg_param.fcfi_base, 5532 phba->sli4_hba.max_cfg_param.max_fcfi); 5533 } 5534 mempool_free(pmb, phba->mbox_mem_pool); 5535 5536 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 5537 if (phba->cfg_hba_queue_depth > 5538 (phba->sli4_hba.max_cfg_param.max_xri - 5539 lpfc_sli4_get_els_iocb_cnt(phba))) 5540 phba->cfg_hba_queue_depth = 5541 phba->sli4_hba.max_cfg_param.max_xri - 5542 lpfc_sli4_get_els_iocb_cnt(phba); 5543 return rc; 5544} 5545 5546/** 5547 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order. 5548 * @phba: pointer to lpfc hba data structure. 5549 * 5550 * This routine is invoked to setup the host-side endian order to the 5551 * HBA consistent with the SLI-4 interface spec. 5552 * 5553 * Return codes 5554 * 0 - successful 5555 * -ENOMEM - No availble memory 5556 * -EIO - The mailbox failed to complete successfully. 5557 **/ 5558static int 5559lpfc_setup_endian_order(struct lpfc_hba *phba) 5560{ 5561 LPFC_MBOXQ_t *mboxq; 5562 uint32_t rc = 0; 5563 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 5564 HOST_ENDIAN_HIGH_WORD1}; 5565 5566 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5567 if (!mboxq) { 5568 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5569 "0492 Unable to allocate memory for issuing " 5570 "SLI_CONFIG_SPECIAL mailbox command\n"); 5571 return -ENOMEM; 5572 } 5573 5574 /* 5575 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two 5576 * words to contain special data values and no other data. 5577 */ 5578 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 5579 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 5580 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5581 if (rc != MBX_SUCCESS) { 5582 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5583 "0493 SLI_CONFIG_SPECIAL mailbox failed with " 5584 "status x%x\n", 5585 rc); 5586 rc = -EIO; 5587 } 5588 5589 mempool_free(mboxq, phba->mbox_mem_pool); 5590 return rc; 5591} 5592 5593/** 5594 * lpfc_sli4_queue_create - Create all the SLI4 queues 5595 * @phba: pointer to lpfc hba data structure. 5596 * 5597 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 5598 * operation. For each SLI4 queue type, the parameters such as queue entry 5599 * count (queue depth) shall be taken from the module parameter. For now, 5600 * we just use some constant number as place holder. 5601 * 5602 * Return codes 5603 * 0 - successful 5604 * -ENOMEM - No availble memory 5605 * -EIO - The mailbox failed to complete successfully. 5606 **/ 5607static int 5608lpfc_sli4_queue_create(struct lpfc_hba *phba) 5609{ 5610 struct lpfc_queue *qdesc; 5611 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5612 int cfg_fcp_wq_count; 5613 int cfg_fcp_eq_count; 5614 5615 /* 5616 * Sanity check for confiugred queue parameters against the run-time 5617 * device parameters 5618 */ 5619 5620 /* Sanity check on FCP fast-path WQ parameters */ 5621 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 5622 if (cfg_fcp_wq_count > 5623 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 5624 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 5625 LPFC_SP_WQN_DEF; 5626 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 5627 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5628 "2581 Not enough WQs (%d) from " 5629 "the pci function for supporting " 5630 "FCP WQs (%d)\n", 5631 phba->sli4_hba.max_cfg_param.max_wq, 5632 phba->cfg_fcp_wq_count); 5633 goto out_error; 5634 } 5635 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5636 "2582 Not enough WQs (%d) from the pci " 5637 "function for supporting the requested " 5638 "FCP WQs (%d), the actual FCP WQs can " 5639 "be supported: %d\n", 5640 phba->sli4_hba.max_cfg_param.max_wq, 5641 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 5642 } 5643 /* The actual number of FCP work queues adopted */ 5644 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 5645 5646 /* Sanity check on FCP fast-path EQ parameters */ 5647 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 5648 if (cfg_fcp_eq_count > 5649 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 5650 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 5651 LPFC_SP_EQN_DEF; 5652 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 5653 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5654 "2574 Not enough EQs (%d) from the " 5655 "pci function for supporting FCP " 5656 "EQs (%d)\n", 5657 phba->sli4_hba.max_cfg_param.max_eq, 5658 phba->cfg_fcp_eq_count); 5659 goto out_error; 5660 } 5661 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5662 "2575 Not enough EQs (%d) from the pci " 5663 "function for supporting the requested " 5664 "FCP EQs (%d), the actual FCP EQs can " 5665 "be supported: %d\n", 5666 phba->sli4_hba.max_cfg_param.max_eq, 5667 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 5668 } 5669 /* It does not make sense to have more EQs than WQs */ 5670 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 5671 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5672 "2593 The FCP EQ count(%d) cannot be greater " 5673 "than the FCP WQ count(%d), limiting the " 5674 "FCP EQ count to %d\n", cfg_fcp_eq_count, 5675 phba->cfg_fcp_wq_count, 5676 phba->cfg_fcp_wq_count); 5677 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 5678 } 5679 /* The actual number of FCP event queues adopted */ 5680 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 5681 /* The overall number of event queues used */ 5682 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 5683 5684 /* 5685 * Create Event Queues (EQs) 5686 */ 5687 5688 /* Get EQ depth from module parameter, fake the default for now */ 5689 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 5690 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 5691 5692 /* Create slow path event queue */ 5693 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5694 phba->sli4_hba.eq_ecount); 5695 if (!qdesc) { 5696 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5697 "0496 Failed allocate slow-path EQ\n"); 5698 goto out_error; 5699 } 5700 phba->sli4_hba.sp_eq = qdesc; 5701 5702 /* Create fast-path FCP Event Queue(s) */ 5703 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 5704 phba->cfg_fcp_eq_count), GFP_KERNEL); 5705 if (!phba->sli4_hba.fp_eq) { 5706 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5707 "2576 Failed allocate memory for fast-path " 5708 "EQ record array\n"); 5709 goto out_free_sp_eq; 5710 } 5711 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5712 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5713 phba->sli4_hba.eq_ecount); 5714 if (!qdesc) { 5715 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5716 "0497 Failed allocate fast-path EQ\n"); 5717 goto out_free_fp_eq; 5718 } 5719 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 5720 } 5721 5722 /* 5723 * Create Complete Queues (CQs) 5724 */ 5725 5726 /* Get CQ depth from module parameter, fake the default for now */ 5727 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 5728 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 5729 5730 /* Create slow-path Mailbox Command Complete Queue */ 5731 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5732 phba->sli4_hba.cq_ecount); 5733 if (!qdesc) { 5734 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5735 "0500 Failed allocate slow-path mailbox CQ\n"); 5736 goto out_free_fp_eq; 5737 } 5738 phba->sli4_hba.mbx_cq = qdesc; 5739 5740 /* Create slow-path ELS Complete Queue */ 5741 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5742 phba->sli4_hba.cq_ecount); 5743 if (!qdesc) { 5744 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5745 "0501 Failed allocate slow-path ELS CQ\n"); 5746 goto out_free_mbx_cq; 5747 } 5748 phba->sli4_hba.els_cq = qdesc; 5749 5750 5751 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ 5752 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 5753 phba->cfg_fcp_eq_count), GFP_KERNEL); 5754 if (!phba->sli4_hba.fcp_cq) { 5755 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5756 "2577 Failed allocate memory for fast-path " 5757 "CQ record array\n"); 5758 goto out_free_els_cq; 5759 } 5760 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5761 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5762 phba->sli4_hba.cq_ecount); 5763 if (!qdesc) { 5764 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5765 "0499 Failed allocate fast-path FCP " 5766 "CQ (%d)\n", fcp_cqidx); 5767 goto out_free_fcp_cq; 5768 } 5769 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 5770 } 5771 5772 /* Create Mailbox Command Queue */ 5773 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 5774 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 5775 5776 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 5777 phba->sli4_hba.mq_ecount); 5778 if (!qdesc) { 5779 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5780 "0505 Failed allocate slow-path MQ\n"); 5781 goto out_free_fcp_cq; 5782 } 5783 phba->sli4_hba.mbx_wq = qdesc; 5784 5785 /* 5786 * Create all the Work Queues (WQs) 5787 */ 5788 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 5789 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 5790 5791 /* Create slow-path ELS Work Queue */ 5792 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5793 phba->sli4_hba.wq_ecount); 5794 if (!qdesc) { 5795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5796 "0504 Failed allocate slow-path ELS WQ\n"); 5797 goto out_free_mbx_wq; 5798 } 5799 phba->sli4_hba.els_wq = qdesc; 5800 5801 /* Create fast-path FCP Work Queue(s) */ 5802 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 5803 phba->cfg_fcp_wq_count), GFP_KERNEL); 5804 if (!phba->sli4_hba.fcp_wq) { 5805 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5806 "2578 Failed allocate memory for fast-path " 5807 "WQ record array\n"); 5808 goto out_free_els_wq; 5809 } 5810 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5811 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5812 phba->sli4_hba.wq_ecount); 5813 if (!qdesc) { 5814 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5815 "0503 Failed allocate fast-path FCP " 5816 "WQ (%d)\n", fcp_wqidx); 5817 goto out_free_fcp_wq; 5818 } 5819 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 5820 } 5821 5822 /* 5823 * Create Receive Queue (RQ) 5824 */ 5825 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 5826 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 5827 5828 /* Create Receive Queue for header */ 5829 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5830 phba->sli4_hba.rq_ecount); 5831 if (!qdesc) { 5832 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5833 "0506 Failed allocate receive HRQ\n"); 5834 goto out_free_fcp_wq; 5835 } 5836 phba->sli4_hba.hdr_rq = qdesc; 5837 5838 /* Create Receive Queue for data */ 5839 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5840 phba->sli4_hba.rq_ecount); 5841 if (!qdesc) { 5842 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5843 "0507 Failed allocate receive DRQ\n"); 5844 goto out_free_hdr_rq; 5845 } 5846 phba->sli4_hba.dat_rq = qdesc; 5847 5848 return 0; 5849 5850out_free_hdr_rq: 5851 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5852 phba->sli4_hba.hdr_rq = NULL; 5853out_free_fcp_wq: 5854 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 5855 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 5856 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 5857 } 5858 kfree(phba->sli4_hba.fcp_wq); 5859out_free_els_wq: 5860 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5861 phba->sli4_hba.els_wq = NULL; 5862out_free_mbx_wq: 5863 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5864 phba->sli4_hba.mbx_wq = NULL; 5865out_free_fcp_cq: 5866 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 5867 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 5868 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 5869 } 5870 kfree(phba->sli4_hba.fcp_cq); 5871out_free_els_cq: 5872 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5873 phba->sli4_hba.els_cq = NULL; 5874out_free_mbx_cq: 5875 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5876 phba->sli4_hba.mbx_cq = NULL; 5877out_free_fp_eq: 5878 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 5879 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 5880 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 5881 } 5882 kfree(phba->sli4_hba.fp_eq); 5883out_free_sp_eq: 5884 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5885 phba->sli4_hba.sp_eq = NULL; 5886out_error: 5887 return -ENOMEM; 5888} 5889 5890/** 5891 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 5892 * @phba: pointer to lpfc hba data structure. 5893 * 5894 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 5895 * operation. 5896 * 5897 * Return codes 5898 * 0 - successful 5899 * -ENOMEM - No availble memory 5900 * -EIO - The mailbox failed to complete successfully. 5901 **/ 5902static void 5903lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 5904{ 5905 int fcp_qidx; 5906 5907 /* Release mailbox command work queue */ 5908 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5909 phba->sli4_hba.mbx_wq = NULL; 5910 5911 /* Release ELS work queue */ 5912 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5913 phba->sli4_hba.els_wq = NULL; 5914 5915 /* Release FCP work queue */ 5916 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5917 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 5918 kfree(phba->sli4_hba.fcp_wq); 5919 phba->sli4_hba.fcp_wq = NULL; 5920 5921 /* Release unsolicited receive queue */ 5922 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5923 phba->sli4_hba.hdr_rq = NULL; 5924 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 5925 phba->sli4_hba.dat_rq = NULL; 5926 5927 /* Release ELS complete queue */ 5928 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5929 phba->sli4_hba.els_cq = NULL; 5930 5931 /* Release mailbox command complete queue */ 5932 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5933 phba->sli4_hba.mbx_cq = NULL; 5934 5935 /* Release FCP response complete queue */ 5936 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5937 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 5938 kfree(phba->sli4_hba.fcp_cq); 5939 phba->sli4_hba.fcp_cq = NULL; 5940 5941 /* Release fast-path event queue */ 5942 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5943 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 5944 kfree(phba->sli4_hba.fp_eq); 5945 phba->sli4_hba.fp_eq = NULL; 5946 5947 /* Release slow-path event queue */ 5948 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5949 phba->sli4_hba.sp_eq = NULL; 5950 5951 return; 5952} 5953 5954/** 5955 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 5956 * @phba: pointer to lpfc hba data structure. 5957 * 5958 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 5959 * operation. 5960 * 5961 * Return codes 5962 * 0 - successful 5963 * -ENOMEM - No availble memory 5964 * -EIO - The mailbox failed to complete successfully. 5965 **/ 5966int 5967lpfc_sli4_queue_setup(struct lpfc_hba *phba) 5968{ 5969 int rc = -ENOMEM; 5970 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5971 int fcp_cq_index = 0; 5972 5973 /* 5974 * Set up Event Queues (EQs) 5975 */ 5976 5977 /* Set up slow-path event queue */ 5978 if (!phba->sli4_hba.sp_eq) { 5979 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5980 "0520 Slow-path EQ not allocated\n"); 5981 goto out_error; 5982 } 5983 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 5984 LPFC_SP_DEF_IMAX); 5985 if (rc) { 5986 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5987 "0521 Failed setup of slow-path EQ: " 5988 "rc = 0x%x\n", rc); 5989 goto out_error; 5990 } 5991 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5992 "2583 Slow-path EQ setup: queue-id=%d\n", 5993 phba->sli4_hba.sp_eq->queue_id); 5994 5995 /* Set up fast-path event queue */ 5996 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5997 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 5998 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5999 "0522 Fast-path EQ (%d) not " 6000 "allocated\n", fcp_eqidx); 6001 goto out_destroy_fp_eq; 6002 } 6003 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 6004 phba->cfg_fcp_imax); 6005 if (rc) { 6006 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6007 "0523 Failed setup of fast-path EQ " 6008 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 6009 goto out_destroy_fp_eq; 6010 } 6011 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6012 "2584 Fast-path EQ setup: " 6013 "queue[%d]-id=%d\n", fcp_eqidx, 6014 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 6015 } 6016 6017 /* 6018 * Set up Complete Queues (CQs) 6019 */ 6020 6021 /* Set up slow-path MBOX Complete Queue as the first CQ */ 6022 if (!phba->sli4_hba.mbx_cq) { 6023 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6024 "0528 Mailbox CQ not allocated\n"); 6025 goto out_destroy_fp_eq; 6026 } 6027 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 6028 LPFC_MCQ, LPFC_MBOX); 6029 if (rc) { 6030 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6031 "0529 Failed setup of slow-path mailbox CQ: " 6032 "rc = 0x%x\n", rc); 6033 goto out_destroy_fp_eq; 6034 } 6035 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6036 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 6037 phba->sli4_hba.mbx_cq->queue_id, 6038 phba->sli4_hba.sp_eq->queue_id); 6039 6040 /* Set up slow-path ELS Complete Queue */ 6041 if (!phba->sli4_hba.els_cq) { 6042 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6043 "0530 ELS CQ not allocated\n"); 6044 goto out_destroy_mbx_cq; 6045 } 6046 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 6047 LPFC_WCQ, LPFC_ELS); 6048 if (rc) { 6049 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6050 "0531 Failed setup of slow-path ELS CQ: " 6051 "rc = 0x%x\n", rc); 6052 goto out_destroy_mbx_cq; 6053 } 6054 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6055 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 6056 phba->sli4_hba.els_cq->queue_id, 6057 phba->sli4_hba.sp_eq->queue_id); 6058 6059 /* Set up fast-path FCP Response Complete Queue */ 6060 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 6061 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 6062 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6063 "0526 Fast-path FCP CQ (%d) not " 6064 "allocated\n", fcp_cqidx); 6065 goto out_destroy_fcp_cq; 6066 } 6067 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 6068 phba->sli4_hba.fp_eq[fcp_cqidx], 6069 LPFC_WCQ, LPFC_FCP); 6070 if (rc) { 6071 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6072 "0527 Failed setup of fast-path FCP " 6073 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 6074 goto out_destroy_fcp_cq; 6075 } 6076 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6077 "2588 FCP CQ setup: cq[%d]-id=%d, " 6078 "parent eq[%d]-id=%d\n", 6079 fcp_cqidx, 6080 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 6081 fcp_cqidx, 6082 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id); 6083 } 6084 6085 /* 6086 * Set up all the Work Queues (WQs) 6087 */ 6088 6089 /* Set up Mailbox Command Queue */ 6090 if (!phba->sli4_hba.mbx_wq) { 6091 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6092 "0538 Slow-path MQ not allocated\n"); 6093 goto out_destroy_fcp_cq; 6094 } 6095 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 6096 phba->sli4_hba.mbx_cq, LPFC_MBOX); 6097 if (rc) { 6098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6099 "0539 Failed setup of slow-path MQ: " 6100 "rc = 0x%x\n", rc); 6101 goto out_destroy_fcp_cq; 6102 } 6103 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6104 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 6105 phba->sli4_hba.mbx_wq->queue_id, 6106 phba->sli4_hba.mbx_cq->queue_id); 6107 6108 /* Set up slow-path ELS Work Queue */ 6109 if (!phba->sli4_hba.els_wq) { 6110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6111 "0536 Slow-path ELS WQ not allocated\n"); 6112 goto out_destroy_mbx_wq; 6113 } 6114 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 6115 phba->sli4_hba.els_cq, LPFC_ELS); 6116 if (rc) { 6117 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6118 "0537 Failed setup of slow-path ELS WQ: " 6119 "rc = 0x%x\n", rc); 6120 goto out_destroy_mbx_wq; 6121 } 6122 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6123 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 6124 phba->sli4_hba.els_wq->queue_id, 6125 phba->sli4_hba.els_cq->queue_id); 6126 6127 /* Set up fast-path FCP Work Queue */ 6128 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6129 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 6130 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6131 "0534 Fast-path FCP WQ (%d) not " 6132 "allocated\n", fcp_wqidx); 6133 goto out_destroy_fcp_wq; 6134 } 6135 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 6136 phba->sli4_hba.fcp_cq[fcp_cq_index], 6137 LPFC_FCP); 6138 if (rc) { 6139 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6140 "0535 Failed setup of fast-path FCP " 6141 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 6142 goto out_destroy_fcp_wq; 6143 } 6144 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6145 "2591 FCP WQ setup: wq[%d]-id=%d, " 6146 "parent cq[%d]-id=%d\n", 6147 fcp_wqidx, 6148 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 6149 fcp_cq_index, 6150 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 6151 /* Round robin FCP Work Queue's Completion Queue assignment */ 6152 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count); 6153 } 6154 6155 /* 6156 * Create Receive Queue (RQ) 6157 */ 6158 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 6159 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6160 "0540 Receive Queue not allocated\n"); 6161 goto out_destroy_fcp_wq; 6162 } 6163 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 6164 phba->sli4_hba.els_cq, LPFC_USOL); 6165 if (rc) { 6166 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6167 "0541 Failed setup of Receive Queue: " 6168 "rc = 0x%x\n", rc); 6169 goto out_destroy_fcp_wq; 6170 } 6171 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6172 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 6173 "parent cq-id=%d\n", 6174 phba->sli4_hba.hdr_rq->queue_id, 6175 phba->sli4_hba.dat_rq->queue_id, 6176 phba->sli4_hba.els_cq->queue_id); 6177 return 0; 6178 6179out_destroy_fcp_wq: 6180 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 6181 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 6182 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6183out_destroy_mbx_wq: 6184 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6185out_destroy_fcp_cq: 6186 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 6187 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 6188 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6189out_destroy_mbx_cq: 6190 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6191out_destroy_fp_eq: 6192 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 6193 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 6194 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6195out_error: 6196 return rc; 6197} 6198 6199/** 6200 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 6201 * @phba: pointer to lpfc hba data structure. 6202 * 6203 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 6204 * operation. 6205 * 6206 * Return codes 6207 * 0 - successful 6208 * -ENOMEM - No availble memory 6209 * -EIO - The mailbox failed to complete successfully. 6210 **/ 6211void 6212lpfc_sli4_queue_unset(struct lpfc_hba *phba) 6213{ 6214 int fcp_qidx; 6215 6216 /* Unset mailbox command work queue */ 6217 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6218 /* Unset ELS work queue */ 6219 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6220 /* Unset unsolicited receive queue */ 6221 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 6222 /* Unset FCP work queue */ 6223 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6224 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 6225 /* Unset mailbox command complete queue */ 6226 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6227 /* Unset ELS complete queue */ 6228 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6229 /* Unset FCP response complete queue */ 6230 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6231 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 6232 /* Unset fast-path event queue */ 6233 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6234 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 6235 /* Unset slow-path event queue */ 6236 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6237} 6238 6239/** 6240 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 6241 * @phba: pointer to lpfc hba data structure. 6242 * 6243 * This routine is invoked to allocate and set up a pool of completion queue 6244 * events. The body of the completion queue event is a completion queue entry 6245 * CQE. For now, this pool is used for the interrupt service routine to queue 6246 * the following HBA completion queue events for the worker thread to process: 6247 * - Mailbox asynchronous events 6248 * - Receive queue completion unsolicited events 6249 * Later, this can be used for all the slow-path events. 6250 * 6251 * Return codes 6252 * 0 - successful 6253 * -ENOMEM - No availble memory 6254 **/ 6255static int 6256lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 6257{ 6258 struct lpfc_cq_event *cq_event; 6259 int i; 6260 6261 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 6262 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 6263 if (!cq_event) 6264 goto out_pool_create_fail; 6265 list_add_tail(&cq_event->list, 6266 &phba->sli4_hba.sp_cqe_event_pool); 6267 } 6268 return 0; 6269 6270out_pool_create_fail: 6271 lpfc_sli4_cq_event_pool_destroy(phba); 6272 return -ENOMEM; 6273} 6274 6275/** 6276 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 6277 * @phba: pointer to lpfc hba data structure. 6278 * 6279 * This routine is invoked to free the pool of completion queue events at 6280 * driver unload time. Note that, it is the responsibility of the driver 6281 * cleanup routine to free all the outstanding completion-queue events 6282 * allocated from this pool back into the pool before invoking this routine 6283 * to destroy the pool. 6284 **/ 6285static void 6286lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 6287{ 6288 struct lpfc_cq_event *cq_event, *next_cq_event; 6289 6290 list_for_each_entry_safe(cq_event, next_cq_event, 6291 &phba->sli4_hba.sp_cqe_event_pool, list) { 6292 list_del(&cq_event->list); 6293 kfree(cq_event); 6294 } 6295} 6296 6297/** 6298 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6299 * @phba: pointer to lpfc hba data structure. 6300 * 6301 * This routine is the lock free version of the API invoked to allocate a 6302 * completion-queue event from the free pool. 6303 * 6304 * Return: Pointer to the newly allocated completion-queue event if successful 6305 * NULL otherwise. 6306 **/ 6307struct lpfc_cq_event * 6308__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6309{ 6310 struct lpfc_cq_event *cq_event = NULL; 6311 6312 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 6313 struct lpfc_cq_event, list); 6314 return cq_event; 6315} 6316 6317/** 6318 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6319 * @phba: pointer to lpfc hba data structure. 6320 * 6321 * This routine is the lock version of the API invoked to allocate a 6322 * completion-queue event from the free pool. 6323 * 6324 * Return: Pointer to the newly allocated completion-queue event if successful 6325 * NULL otherwise. 6326 **/ 6327struct lpfc_cq_event * 6328lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6329{ 6330 struct lpfc_cq_event *cq_event; 6331 unsigned long iflags; 6332 6333 spin_lock_irqsave(&phba->hbalock, iflags); 6334 cq_event = __lpfc_sli4_cq_event_alloc(phba); 6335 spin_unlock_irqrestore(&phba->hbalock, iflags); 6336 return cq_event; 6337} 6338 6339/** 6340 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6341 * @phba: pointer to lpfc hba data structure. 6342 * @cq_event: pointer to the completion queue event to be freed. 6343 * 6344 * This routine is the lock free version of the API invoked to release a 6345 * completion-queue event back into the free pool. 6346 **/ 6347void 6348__lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6349 struct lpfc_cq_event *cq_event) 6350{ 6351 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 6352} 6353 6354/** 6355 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6356 * @phba: pointer to lpfc hba data structure. 6357 * @cq_event: pointer to the completion queue event to be freed. 6358 * 6359 * This routine is the lock version of the API invoked to release a 6360 * completion-queue event back into the free pool. 6361 **/ 6362void 6363lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6364 struct lpfc_cq_event *cq_event) 6365{ 6366 unsigned long iflags; 6367 spin_lock_irqsave(&phba->hbalock, iflags); 6368 __lpfc_sli4_cq_event_release(phba, cq_event); 6369 spin_unlock_irqrestore(&phba->hbalock, iflags); 6370} 6371 6372/** 6373 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 6374 * @phba: pointer to lpfc hba data structure. 6375 * 6376 * This routine is to free all the pending completion-queue events to the 6377 * back into the free pool for device reset. 6378 **/ 6379static void 6380lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 6381{ 6382 LIST_HEAD(cqelist); 6383 struct lpfc_cq_event *cqe; 6384 unsigned long iflags; 6385 6386 /* Retrieve all the pending WCQEs from pending WCQE lists */ 6387 spin_lock_irqsave(&phba->hbalock, iflags); 6388 /* Pending FCP XRI abort events */ 6389 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 6390 &cqelist); 6391 /* Pending ELS XRI abort events */ 6392 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 6393 &cqelist); 6394 /* Pending asynnc events */ 6395 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 6396 &cqelist); 6397 spin_unlock_irqrestore(&phba->hbalock, iflags); 6398 6399 while (!list_empty(&cqelist)) { 6400 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 6401 lpfc_sli4_cq_event_release(phba, cqe); 6402 } 6403} 6404 6405/** 6406 * lpfc_pci_function_reset - Reset pci function. 6407 * @phba: pointer to lpfc hba data structure. 6408 * 6409 * This routine is invoked to request a PCI function reset. It will destroys 6410 * all resources assigned to the PCI function which originates this request. 6411 * 6412 * Return codes 6413 * 0 - successful 6414 * -ENOMEM - No availble memory 6415 * -EIO - The mailbox failed to complete successfully. 6416 **/ 6417int 6418lpfc_pci_function_reset(struct lpfc_hba *phba) 6419{ 6420 LPFC_MBOXQ_t *mboxq; 6421 uint32_t rc = 0; 6422 uint32_t shdr_status, shdr_add_status; 6423 union lpfc_sli4_cfg_shdr *shdr; 6424 6425 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6426 if (!mboxq) { 6427 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6428 "0494 Unable to allocate memory for issuing " 6429 "SLI_FUNCTION_RESET mailbox command\n"); 6430 return -ENOMEM; 6431 } 6432 6433 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */ 6434 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6435 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 6436 LPFC_SLI4_MBX_EMBED); 6437 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6438 shdr = (union lpfc_sli4_cfg_shdr *) 6439 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6440 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6441 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6442 if (rc != MBX_TIMEOUT) 6443 mempool_free(mboxq, phba->mbox_mem_pool); 6444 if (shdr_status || shdr_add_status || rc) { 6445 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6446 "0495 SLI_FUNCTION_RESET mailbox failed with " 6447 "status x%x add_status x%x, mbx status x%x\n", 6448 shdr_status, shdr_add_status, rc); 6449 rc = -ENXIO; 6450 } 6451 return rc; 6452} 6453 6454/** 6455 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 6456 * @phba: pointer to lpfc hba data structure. 6457 * @cnt: number of nop mailbox commands to send. 6458 * 6459 * This routine is invoked to send a number @cnt of NOP mailbox command and 6460 * wait for each command to complete. 6461 * 6462 * Return: the number of NOP mailbox command completed. 6463 **/ 6464static int 6465lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 6466{ 6467 LPFC_MBOXQ_t *mboxq; 6468 int length, cmdsent; 6469 uint32_t mbox_tmo; 6470 uint32_t rc = 0; 6471 uint32_t shdr_status, shdr_add_status; 6472 union lpfc_sli4_cfg_shdr *shdr; 6473 6474 if (cnt == 0) { 6475 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6476 "2518 Requested to send 0 NOP mailbox cmd\n"); 6477 return cnt; 6478 } 6479 6480 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6481 if (!mboxq) { 6482 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6483 "2519 Unable to allocate memory for issuing " 6484 "NOP mailbox command\n"); 6485 return 0; 6486 } 6487 6488 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 6489 length = (sizeof(struct lpfc_mbx_nop) - 6490 sizeof(struct lpfc_sli4_cfg_mhdr)); 6491 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6492 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 6493 6494 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 6495 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 6496 if (!phba->sli4_hba.intr_enable) 6497 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6498 else 6499 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 6500 if (rc == MBX_TIMEOUT) 6501 break; 6502 /* Check return status */ 6503 shdr = (union lpfc_sli4_cfg_shdr *) 6504 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6505 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6506 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 6507 &shdr->response); 6508 if (shdr_status || shdr_add_status || rc) { 6509 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6510 "2520 NOP mailbox command failed " 6511 "status x%x add_status x%x mbx " 6512 "status x%x\n", shdr_status, 6513 shdr_add_status, rc); 6514 break; 6515 } 6516 } 6517 6518 if (rc != MBX_TIMEOUT) 6519 mempool_free(mboxq, phba->mbox_mem_pool); 6520 6521 return cmdsent; 6522} 6523 6524/** 6525 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 6526 * @phba: pointer to lpfc hba data structure. 6527 * 6528 * This routine is invoked to set up the PCI device memory space for device 6529 * with SLI-4 interface spec. 6530 * 6531 * Return codes 6532 * 0 - successful 6533 * other values - error 6534 **/ 6535static int 6536lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 6537{ 6538 struct pci_dev *pdev; 6539 unsigned long bar0map_len, bar1map_len, bar2map_len; 6540 int error = -ENODEV; 6541 6542 /* Obtain PCI device reference */ 6543 if (!phba->pcidev) 6544 return error; 6545 else 6546 pdev = phba->pcidev; 6547 6548 /* Set the device DMA mask size */ 6549 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6550 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6551 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6552 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6553 return error; 6554 } 6555 } 6556 6557 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the 6558 * number of bytes required by each mapping. They are actually 6559 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device. 6560 */ 6561 if (pci_resource_start(pdev, 0)) { 6562 phba->pci_bar0_map = pci_resource_start(pdev, 0); 6563 bar0map_len = pci_resource_len(pdev, 0); 6564 } else { 6565 phba->pci_bar0_map = pci_resource_start(pdev, 1); 6566 bar0map_len = pci_resource_len(pdev, 1); 6567 } 6568 phba->pci_bar1_map = pci_resource_start(pdev, 2); 6569 bar1map_len = pci_resource_len(pdev, 2); 6570 6571 phba->pci_bar2_map = pci_resource_start(pdev, 4); 6572 bar2map_len = pci_resource_len(pdev, 4); 6573 6574 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */ 6575 phba->sli4_hba.conf_regs_memmap_p = 6576 ioremap(phba->pci_bar0_map, bar0map_len); 6577 if (!phba->sli4_hba.conf_regs_memmap_p) { 6578 dev_printk(KERN_ERR, &pdev->dev, 6579 "ioremap failed for SLI4 PCI config registers.\n"); 6580 goto out; 6581 } 6582 6583 /* Map SLI4 HBA Control Register base to a kernel virtual address. */ 6584 phba->sli4_hba.ctrl_regs_memmap_p = 6585 ioremap(phba->pci_bar1_map, bar1map_len); 6586 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 6587 dev_printk(KERN_ERR, &pdev->dev, 6588 "ioremap failed for SLI4 HBA control registers.\n"); 6589 goto out_iounmap_conf; 6590 } 6591 6592 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */ 6593 phba->sli4_hba.drbl_regs_memmap_p = 6594 ioremap(phba->pci_bar2_map, bar2map_len); 6595 if (!phba->sli4_hba.drbl_regs_memmap_p) { 6596 dev_printk(KERN_ERR, &pdev->dev, 6597 "ioremap failed for SLI4 HBA doorbell registers.\n"); 6598 goto out_iounmap_ctrl; 6599 } 6600 6601 /* Set up BAR0 PCI config space register memory map */ 6602 lpfc_sli4_bar0_register_memmap(phba); 6603 6604 /* Set up BAR1 register memory map */ 6605 lpfc_sli4_bar1_register_memmap(phba); 6606 6607 /* Set up BAR2 register memory map */ 6608 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 6609 if (error) 6610 goto out_iounmap_all; 6611 6612 return 0; 6613 6614out_iounmap_all: 6615 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6616out_iounmap_ctrl: 6617 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6618out_iounmap_conf: 6619 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6620out: 6621 return error; 6622} 6623 6624/** 6625 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 6626 * @phba: pointer to lpfc hba data structure. 6627 * 6628 * This routine is invoked to unset the PCI device memory space for device 6629 * with SLI-4 interface spec. 6630 **/ 6631static void 6632lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 6633{ 6634 struct pci_dev *pdev; 6635 6636 /* Obtain PCI device reference */ 6637 if (!phba->pcidev) 6638 return; 6639 else 6640 pdev = phba->pcidev; 6641 6642 /* Free coherent DMA memory allocated */ 6643 6644 /* Unmap I/O memory space */ 6645 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6646 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6647 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6648 6649 return; 6650} 6651 6652/** 6653 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 6654 * @phba: pointer to lpfc hba data structure. 6655 * 6656 * This routine is invoked to enable the MSI-X interrupt vectors to device 6657 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 6658 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 6659 * invoked, enables either all or nothing, depending on the current 6660 * availability of PCI vector resources. The device driver is responsible 6661 * for calling the individual request_irq() to register each MSI-X vector 6662 * with a interrupt handler, which is done in this function. Note that 6663 * later when device is unloading, the driver should always call free_irq() 6664 * on all MSI-X vectors it has done request_irq() on before calling 6665 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 6666 * will be left with MSI-X enabled and leaks its vectors. 6667 * 6668 * Return codes 6669 * 0 - successful 6670 * other values - error 6671 **/ 6672static int 6673lpfc_sli_enable_msix(struct lpfc_hba *phba) 6674{ 6675 int rc, i; 6676 LPFC_MBOXQ_t *pmb; 6677 6678 /* Set up MSI-X multi-message vectors */ 6679 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6680 phba->msix_entries[i].entry = i; 6681 6682 /* Configure MSI-X capability structure */ 6683 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 6684 ARRAY_SIZE(phba->msix_entries)); 6685 if (rc) { 6686 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6687 "0420 PCI enable MSI-X failed (%d)\n", rc); 6688 goto msi_fail_out; 6689 } 6690 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6691 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6692 "0477 MSI-X entry[%d]: vector=x%x " 6693 "message=%d\n", i, 6694 phba->msix_entries[i].vector, 6695 phba->msix_entries[i].entry); 6696 /* 6697 * Assign MSI-X vectors to interrupt handlers 6698 */ 6699 6700 /* vector-0 is associated to slow-path handler */ 6701 rc = request_irq(phba->msix_entries[0].vector, 6702 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 6703 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6704 if (rc) { 6705 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6706 "0421 MSI-X slow-path request_irq failed " 6707 "(%d)\n", rc); 6708 goto msi_fail_out; 6709 } 6710 6711 /* vector-1 is associated to fast-path handler */ 6712 rc = request_irq(phba->msix_entries[1].vector, 6713 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 6714 LPFC_FP_DRIVER_HANDLER_NAME, phba); 6715 6716 if (rc) { 6717 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6718 "0429 MSI-X fast-path request_irq failed " 6719 "(%d)\n", rc); 6720 goto irq_fail_out; 6721 } 6722 6723 /* 6724 * Configure HBA MSI-X attention conditions to messages 6725 */ 6726 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6727 6728 if (!pmb) { 6729 rc = -ENOMEM; 6730 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6731 "0474 Unable to allocate memory for issuing " 6732 "MBOX_CONFIG_MSI command\n"); 6733 goto mem_fail_out; 6734 } 6735 rc = lpfc_config_msi(phba, pmb); 6736 if (rc) 6737 goto mbx_fail_out; 6738 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6739 if (rc != MBX_SUCCESS) { 6740 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 6741 "0351 Config MSI mailbox command failed, " 6742 "mbxCmd x%x, mbxStatus x%x\n", 6743 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 6744 goto mbx_fail_out; 6745 } 6746 6747 /* Free memory allocated for mailbox command */ 6748 mempool_free(pmb, phba->mbox_mem_pool); 6749 return rc; 6750 6751mbx_fail_out: 6752 /* Free memory allocated for mailbox command */ 6753 mempool_free(pmb, phba->mbox_mem_pool); 6754 6755mem_fail_out: 6756 /* free the irq already requested */ 6757 free_irq(phba->msix_entries[1].vector, phba); 6758 6759irq_fail_out: 6760 /* free the irq already requested */ 6761 free_irq(phba->msix_entries[0].vector, phba); 6762 6763msi_fail_out: 6764 /* Unconfigure MSI-X capability structure */ 6765 pci_disable_msix(phba->pcidev); 6766 return rc; 6767} 6768 6769/** 6770 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 6771 * @phba: pointer to lpfc hba data structure. 6772 * 6773 * This routine is invoked to release the MSI-X vectors and then disable the 6774 * MSI-X interrupt mode to device with SLI-3 interface spec. 6775 **/ 6776static void 6777lpfc_sli_disable_msix(struct lpfc_hba *phba) 6778{ 6779 int i; 6780 6781 /* Free up MSI-X multi-message vectors */ 6782 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6783 free_irq(phba->msix_entries[i].vector, phba); 6784 /* Disable MSI-X */ 6785 pci_disable_msix(phba->pcidev); 6786 6787 return; 6788} 6789 6790/** 6791 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 6792 * @phba: pointer to lpfc hba data structure. 6793 * 6794 * This routine is invoked to enable the MSI interrupt mode to device with 6795 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 6796 * enable the MSI vector. The device driver is responsible for calling the 6797 * request_irq() to register MSI vector with a interrupt the handler, which 6798 * is done in this function. 6799 * 6800 * Return codes 6801 * 0 - successful 6802 * other values - error 6803 */ 6804static int 6805lpfc_sli_enable_msi(struct lpfc_hba *phba) 6806{ 6807 int rc; 6808 6809 rc = pci_enable_msi(phba->pcidev); 6810 if (!rc) 6811 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6812 "0462 PCI enable MSI mode success.\n"); 6813 else { 6814 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6815 "0471 PCI enable MSI mode failed (%d)\n", rc); 6816 return rc; 6817 } 6818 6819 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6820 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6821 if (rc) { 6822 pci_disable_msi(phba->pcidev); 6823 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6824 "0478 MSI request_irq failed (%d)\n", rc); 6825 } 6826 return rc; 6827} 6828 6829/** 6830 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 6831 * @phba: pointer to lpfc hba data structure. 6832 * 6833 * This routine is invoked to disable the MSI interrupt mode to device with 6834 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 6835 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6836 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6837 * its vector. 6838 */ 6839static void 6840lpfc_sli_disable_msi(struct lpfc_hba *phba) 6841{ 6842 free_irq(phba->pcidev->irq, phba); 6843 pci_disable_msi(phba->pcidev); 6844 return; 6845} 6846 6847/** 6848 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 6849 * @phba: pointer to lpfc hba data structure. 6850 * 6851 * This routine is invoked to enable device interrupt and associate driver's 6852 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 6853 * spec. Depends on the interrupt mode configured to the driver, the driver 6854 * will try to fallback from the configured interrupt mode to an interrupt 6855 * mode which is supported by the platform, kernel, and device in the order 6856 * of: 6857 * MSI-X -> MSI -> IRQ. 6858 * 6859 * Return codes 6860 * 0 - successful 6861 * other values - error 6862 **/ 6863static uint32_t 6864lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6865{ 6866 uint32_t intr_mode = LPFC_INTR_ERROR; 6867 int retval; 6868 6869 if (cfg_mode == 2) { 6870 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 6871 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 6872 if (!retval) { 6873 /* Now, try to enable MSI-X interrupt mode */ 6874 retval = lpfc_sli_enable_msix(phba); 6875 if (!retval) { 6876 /* Indicate initialization to MSI-X mode */ 6877 phba->intr_type = MSIX; 6878 intr_mode = 2; 6879 } 6880 } 6881 } 6882 6883 /* Fallback to MSI if MSI-X initialization failed */ 6884 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6885 retval = lpfc_sli_enable_msi(phba); 6886 if (!retval) { 6887 /* Indicate initialization to MSI mode */ 6888 phba->intr_type = MSI; 6889 intr_mode = 1; 6890 } 6891 } 6892 6893 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6894 if (phba->intr_type == NONE) { 6895 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6896 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6897 if (!retval) { 6898 /* Indicate initialization to INTx mode */ 6899 phba->intr_type = INTx; 6900 intr_mode = 0; 6901 } 6902 } 6903 return intr_mode; 6904} 6905 6906/** 6907 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 6908 * @phba: pointer to lpfc hba data structure. 6909 * 6910 * This routine is invoked to disable device interrupt and disassociate the 6911 * driver's interrupt handler(s) from interrupt vector(s) to device with 6912 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 6913 * release the interrupt vector(s) for the message signaled interrupt. 6914 **/ 6915static void 6916lpfc_sli_disable_intr(struct lpfc_hba *phba) 6917{ 6918 /* Disable the currently initialized interrupt mode */ 6919 if (phba->intr_type == MSIX) 6920 lpfc_sli_disable_msix(phba); 6921 else if (phba->intr_type == MSI) 6922 lpfc_sli_disable_msi(phba); 6923 else if (phba->intr_type == INTx) 6924 free_irq(phba->pcidev->irq, phba); 6925 6926 /* Reset interrupt management states */ 6927 phba->intr_type = NONE; 6928 phba->sli.slistat.sli_intr = 0; 6929 6930 return; 6931} 6932 6933/** 6934 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 6935 * @phba: pointer to lpfc hba data structure. 6936 * 6937 * This routine is invoked to enable the MSI-X interrupt vectors to device 6938 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 6939 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 6940 * enables either all or nothing, depending on the current availability of 6941 * PCI vector resources. The device driver is responsible for calling the 6942 * individual request_irq() to register each MSI-X vector with a interrupt 6943 * handler, which is done in this function. Note that later when device is 6944 * unloading, the driver should always call free_irq() on all MSI-X vectors 6945 * it has done request_irq() on before calling pci_disable_msix(). Failure 6946 * to do so results in a BUG_ON() and a device will be left with MSI-X 6947 * enabled and leaks its vectors. 6948 * 6949 * Return codes 6950 * 0 - successful 6951 * other values - error 6952 **/ 6953static int 6954lpfc_sli4_enable_msix(struct lpfc_hba *phba) 6955{ 6956 int vectors, rc, index; 6957 6958 /* Set up MSI-X multi-message vectors */ 6959 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 6960 phba->sli4_hba.msix_entries[index].entry = index; 6961 6962 /* Configure MSI-X capability structure */ 6963 vectors = phba->sli4_hba.cfg_eqn; 6964enable_msix_vectors: 6965 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 6966 vectors); 6967 if (rc > 1) { 6968 vectors = rc; 6969 goto enable_msix_vectors; 6970 } else if (rc) { 6971 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6972 "0484 PCI enable MSI-X failed (%d)\n", rc); 6973 goto msi_fail_out; 6974 } 6975 6976 /* Log MSI-X vector assignment */ 6977 for (index = 0; index < vectors; index++) 6978 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6979 "0489 MSI-X entry[%d]: vector=x%x " 6980 "message=%d\n", index, 6981 phba->sli4_hba.msix_entries[index].vector, 6982 phba->sli4_hba.msix_entries[index].entry); 6983 /* 6984 * Assign MSI-X vectors to interrupt handlers 6985 */ 6986 6987 /* The first vector must associated to slow-path handler for MQ */ 6988 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 6989 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 6990 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6991 if (rc) { 6992 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6993 "0485 MSI-X slow-path request_irq failed " 6994 "(%d)\n", rc); 6995 goto msi_fail_out; 6996 } 6997 6998 /* The rest of the vector(s) are associated to fast-path handler(s) */ 6999 for (index = 1; index < vectors; index++) { 7000 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 7001 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 7002 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 7003 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 7004 LPFC_FP_DRIVER_HANDLER_NAME, 7005 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7006 if (rc) { 7007 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7008 "0486 MSI-X fast-path (%d) " 7009 "request_irq failed (%d)\n", index, rc); 7010 goto cfg_fail_out; 7011 } 7012 } 7013 phba->sli4_hba.msix_vec_nr = vectors; 7014 7015 return rc; 7016 7017cfg_fail_out: 7018 /* free the irq already requested */ 7019 for (--index; index >= 1; index--) 7020 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 7021 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7022 7023 /* free the irq already requested */ 7024 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7025 7026msi_fail_out: 7027 /* Unconfigure MSI-X capability structure */ 7028 pci_disable_msix(phba->pcidev); 7029 return rc; 7030} 7031 7032/** 7033 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 7034 * @phba: pointer to lpfc hba data structure. 7035 * 7036 * This routine is invoked to release the MSI-X vectors and then disable the 7037 * MSI-X interrupt mode to device with SLI-4 interface spec. 7038 **/ 7039static void 7040lpfc_sli4_disable_msix(struct lpfc_hba *phba) 7041{ 7042 int index; 7043 7044 /* Free up MSI-X multi-message vectors */ 7045 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7046 7047 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++) 7048 free_irq(phba->sli4_hba.msix_entries[index].vector, 7049 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7050 7051 /* Disable MSI-X */ 7052 pci_disable_msix(phba->pcidev); 7053 7054 return; 7055} 7056 7057/** 7058 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 7059 * @phba: pointer to lpfc hba data structure. 7060 * 7061 * This routine is invoked to enable the MSI interrupt mode to device with 7062 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 7063 * to enable the MSI vector. The device driver is responsible for calling 7064 * the request_irq() to register MSI vector with a interrupt the handler, 7065 * which is done in this function. 7066 * 7067 * Return codes 7068 * 0 - successful 7069 * other values - error 7070 **/ 7071static int 7072lpfc_sli4_enable_msi(struct lpfc_hba *phba) 7073{ 7074 int rc, index; 7075 7076 rc = pci_enable_msi(phba->pcidev); 7077 if (!rc) 7078 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7079 "0487 PCI enable MSI mode success.\n"); 7080 else { 7081 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7082 "0488 PCI enable MSI mode failed (%d)\n", rc); 7083 return rc; 7084 } 7085 7086 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7087 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7088 if (rc) { 7089 pci_disable_msi(phba->pcidev); 7090 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7091 "0490 MSI request_irq failed (%d)\n", rc); 7092 return rc; 7093 } 7094 7095 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 7096 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7097 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7098 } 7099 7100 return 0; 7101} 7102 7103/** 7104 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 7105 * @phba: pointer to lpfc hba data structure. 7106 * 7107 * This routine is invoked to disable the MSI interrupt mode to device with 7108 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 7109 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7110 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7111 * its vector. 7112 **/ 7113static void 7114lpfc_sli4_disable_msi(struct lpfc_hba *phba) 7115{ 7116 free_irq(phba->pcidev->irq, phba); 7117 pci_disable_msi(phba->pcidev); 7118 return; 7119} 7120 7121/** 7122 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 7123 * @phba: pointer to lpfc hba data structure. 7124 * 7125 * This routine is invoked to enable device interrupt and associate driver's 7126 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 7127 * interface spec. Depends on the interrupt mode configured to the driver, 7128 * the driver will try to fallback from the configured interrupt mode to an 7129 * interrupt mode which is supported by the platform, kernel, and device in 7130 * the order of: 7131 * MSI-X -> MSI -> IRQ. 7132 * 7133 * Return codes 7134 * 0 - successful 7135 * other values - error 7136 **/ 7137static uint32_t 7138lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7139{ 7140 uint32_t intr_mode = LPFC_INTR_ERROR; 7141 int retval, index; 7142 7143 if (cfg_mode == 2) { 7144 /* Preparation before conf_msi mbox cmd */ 7145 retval = 0; 7146 if (!retval) { 7147 /* Now, try to enable MSI-X interrupt mode */ 7148 retval = lpfc_sli4_enable_msix(phba); 7149 if (!retval) { 7150 /* Indicate initialization to MSI-X mode */ 7151 phba->intr_type = MSIX; 7152 intr_mode = 2; 7153 } 7154 } 7155 } 7156 7157 /* Fallback to MSI if MSI-X initialization failed */ 7158 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7159 retval = lpfc_sli4_enable_msi(phba); 7160 if (!retval) { 7161 /* Indicate initialization to MSI mode */ 7162 phba->intr_type = MSI; 7163 intr_mode = 1; 7164 } 7165 } 7166 7167 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7168 if (phba->intr_type == NONE) { 7169 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7170 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7171 if (!retval) { 7172 /* Indicate initialization to INTx mode */ 7173 phba->intr_type = INTx; 7174 intr_mode = 0; 7175 for (index = 0; index < phba->cfg_fcp_eq_count; 7176 index++) { 7177 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7178 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7179 } 7180 } 7181 } 7182 return intr_mode; 7183} 7184 7185/** 7186 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 7187 * @phba: pointer to lpfc hba data structure. 7188 * 7189 * This routine is invoked to disable device interrupt and disassociate 7190 * the driver's interrupt handler(s) from interrupt vector(s) to device 7191 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 7192 * will release the interrupt vector(s) for the message signaled interrupt. 7193 **/ 7194static void 7195lpfc_sli4_disable_intr(struct lpfc_hba *phba) 7196{ 7197 /* Disable the currently initialized interrupt mode */ 7198 if (phba->intr_type == MSIX) 7199 lpfc_sli4_disable_msix(phba); 7200 else if (phba->intr_type == MSI) 7201 lpfc_sli4_disable_msi(phba); 7202 else if (phba->intr_type == INTx) 7203 free_irq(phba->pcidev->irq, phba); 7204 7205 /* Reset interrupt management states */ 7206 phba->intr_type = NONE; 7207 phba->sli.slistat.sli_intr = 0; 7208 7209 return; 7210} 7211 7212/** 7213 * lpfc_unset_hba - Unset SLI3 hba device initialization 7214 * @phba: pointer to lpfc hba data structure. 7215 * 7216 * This routine is invoked to unset the HBA device initialization steps to 7217 * a device with SLI-3 interface spec. 7218 **/ 7219static void 7220lpfc_unset_hba(struct lpfc_hba *phba) 7221{ 7222 struct lpfc_vport *vport = phba->pport; 7223 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7224 7225 spin_lock_irq(shost->host_lock); 7226 vport->load_flag |= FC_UNLOADING; 7227 spin_unlock_irq(shost->host_lock); 7228 7229 lpfc_stop_hba_timers(phba); 7230 7231 phba->pport->work_port_events = 0; 7232 7233 lpfc_sli_hba_down(phba); 7234 7235 lpfc_sli_brdrestart(phba); 7236 7237 lpfc_sli_disable_intr(phba); 7238 7239 return; 7240} 7241 7242/** 7243 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 7244 * @phba: pointer to lpfc hba data structure. 7245 * 7246 * This routine is invoked to unset the HBA device initialization steps to 7247 * a device with SLI-4 interface spec. 7248 **/ 7249static void 7250lpfc_sli4_unset_hba(struct lpfc_hba *phba) 7251{ 7252 struct lpfc_vport *vport = phba->pport; 7253 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7254 7255 spin_lock_irq(shost->host_lock); 7256 vport->load_flag |= FC_UNLOADING; 7257 spin_unlock_irq(shost->host_lock); 7258 7259 phba->pport->work_port_events = 0; 7260 7261 /* Stop the SLI4 device port */ 7262 lpfc_stop_port(phba); 7263 7264 lpfc_sli4_disable_intr(phba); 7265 7266 /* Reset SLI4 HBA FCoE function */ 7267 lpfc_pci_function_reset(phba); 7268 7269 return; 7270} 7271 7272/** 7273 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 7274 * @phba: Pointer to HBA context object. 7275 * 7276 * This function is called in the SLI4 code path to wait for completion 7277 * of device's XRIs exchange busy. It will check the XRI exchange busy 7278 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 7279 * that, it will check the XRI exchange busy on outstanding FCP and ELS 7280 * I/Os every 30 seconds, log error message, and wait forever. Only when 7281 * all XRI exchange busy complete, the driver unload shall proceed with 7282 * invoking the function reset ioctl mailbox command to the CNA and the 7283 * the rest of the driver unload resource release. 7284 **/ 7285static void 7286lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 7287{ 7288 int wait_time = 0; 7289 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 7290 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 7291 7292 while (!fcp_xri_cmpl || !els_xri_cmpl) { 7293 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 7294 if (!fcp_xri_cmpl) 7295 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7296 "2877 FCP XRI exchange busy " 7297 "wait time: %d seconds.\n", 7298 wait_time/1000); 7299 if (!els_xri_cmpl) 7300 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7301 "2878 ELS XRI exchange busy " 7302 "wait time: %d seconds.\n", 7303 wait_time/1000); 7304 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 7305 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 7306 } else { 7307 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 7308 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 7309 } 7310 fcp_xri_cmpl = 7311 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 7312 els_xri_cmpl = 7313 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 7314 } 7315} 7316 7317/** 7318 * lpfc_sli4_hba_unset - Unset the fcoe hba 7319 * @phba: Pointer to HBA context object. 7320 * 7321 * This function is called in the SLI4 code path to reset the HBA's FCoE 7322 * function. The caller is not required to hold any lock. This routine 7323 * issues PCI function reset mailbox command to reset the FCoE function. 7324 * At the end of the function, it calls lpfc_hba_down_post function to 7325 * free any pending commands. 7326 **/ 7327static void 7328lpfc_sli4_hba_unset(struct lpfc_hba *phba) 7329{ 7330 int wait_cnt = 0; 7331 LPFC_MBOXQ_t *mboxq; 7332 7333 lpfc_stop_hba_timers(phba); 7334 phba->sli4_hba.intr_enable = 0; 7335 7336 /* 7337 * Gracefully wait out the potential current outstanding asynchronous 7338 * mailbox command. 7339 */ 7340 7341 /* First, block any pending async mailbox command from posted */ 7342 spin_lock_irq(&phba->hbalock); 7343 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 7344 spin_unlock_irq(&phba->hbalock); 7345 /* Now, trying to wait it out if we can */ 7346 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7347 msleep(10); 7348 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 7349 break; 7350 } 7351 /* Forcefully release the outstanding mailbox command if timed out */ 7352 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7353 spin_lock_irq(&phba->hbalock); 7354 mboxq = phba->sli.mbox_active; 7355 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 7356 __lpfc_mbox_cmpl_put(phba, mboxq); 7357 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 7358 phba->sli.mbox_active = NULL; 7359 spin_unlock_irq(&phba->hbalock); 7360 } 7361 7362 /* Abort all iocbs associated with the hba */ 7363 lpfc_sli_hba_iocb_abort(phba); 7364 7365 /* Wait for completion of device XRI exchange busy */ 7366 lpfc_sli4_xri_exchange_busy_wait(phba); 7367 7368 /* Disable PCI subsystem interrupt */ 7369 lpfc_sli4_disable_intr(phba); 7370 7371 /* Stop kthread signal shall trigger work_done one more time */ 7372 kthread_stop(phba->worker_thread); 7373 7374 /* Reset SLI4 HBA FCoE function */ 7375 lpfc_pci_function_reset(phba); 7376 7377 /* Stop the SLI4 device port */ 7378 phba->pport->work_port_events = 0; 7379} 7380 7381 /** 7382 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 7383 * @phba: Pointer to HBA context object. 7384 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 7385 * 7386 * This function is called in the SLI4 code path to read the port's 7387 * sli4 capabilities. 7388 * 7389 * This function may be be called from any context that can block-wait 7390 * for the completion. The expectation is that this routine is called 7391 * typically from probe_one or from the online routine. 7392 **/ 7393int 7394lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 7395{ 7396 int rc; 7397 struct lpfc_mqe *mqe; 7398 struct lpfc_pc_sli4_params *sli4_params; 7399 uint32_t mbox_tmo; 7400 7401 rc = 0; 7402 mqe = &mboxq->u.mqe; 7403 7404 /* Read the port's SLI4 Parameters port capabilities */ 7405 lpfc_sli4_params(mboxq); 7406 if (!phba->sli4_hba.intr_enable) 7407 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7408 else { 7409 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES); 7410 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7411 } 7412 7413 if (unlikely(rc)) 7414 return 1; 7415 7416 sli4_params = &phba->sli4_hba.pc_sli4_params; 7417 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 7418 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 7419 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 7420 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 7421 &mqe->un.sli4_params); 7422 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 7423 &mqe->un.sli4_params); 7424 sli4_params->proto_types = mqe->un.sli4_params.word3; 7425 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 7426 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 7427 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 7428 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 7429 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 7430 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 7431 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 7432 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 7433 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 7434 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 7435 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 7436 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 7437 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 7438 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 7439 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 7440 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 7441 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 7442 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 7443 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 7444 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 7445 return rc; 7446} 7447 7448/** 7449 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 7450 * @pdev: pointer to PCI device 7451 * @pid: pointer to PCI device identifier 7452 * 7453 * This routine is to be called to attach a device with SLI-3 interface spec 7454 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 7455 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 7456 * information of the device and driver to see if the driver state that it can 7457 * support this kind of device. If the match is successful, the driver core 7458 * invokes this routine. If this routine determines it can claim the HBA, it 7459 * does all the initialization that it needs to do to handle the HBA properly. 7460 * 7461 * Return code 7462 * 0 - driver can claim the device 7463 * negative value - driver can not claim the device 7464 **/ 7465static int __devinit 7466lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 7467{ 7468 struct lpfc_hba *phba; 7469 struct lpfc_vport *vport = NULL; 7470 struct Scsi_Host *shost = NULL; 7471 int error; 7472 uint32_t cfg_mode, intr_mode; 7473 7474 /* Allocate memory for HBA structure */ 7475 phba = lpfc_hba_alloc(pdev); 7476 if (!phba) 7477 return -ENOMEM; 7478 7479 /* Perform generic PCI device enabling operation */ 7480 error = lpfc_enable_pci_dev(phba); 7481 if (error) { 7482 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7483 "1401 Failed to enable pci device.\n"); 7484 goto out_free_phba; 7485 } 7486 7487 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 7488 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 7489 if (error) 7490 goto out_disable_pci_dev; 7491 7492 /* Set up SLI-3 specific device PCI memory space */ 7493 error = lpfc_sli_pci_mem_setup(phba); 7494 if (error) { 7495 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7496 "1402 Failed to set up pci memory space.\n"); 7497 goto out_disable_pci_dev; 7498 } 7499 7500 /* Set up phase-1 common device driver resources */ 7501 error = lpfc_setup_driver_resource_phase1(phba); 7502 if (error) { 7503 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7504 "1403 Failed to set up driver resource.\n"); 7505 goto out_unset_pci_mem_s3; 7506 } 7507 7508 /* Set up SLI-3 specific device driver resources */ 7509 error = lpfc_sli_driver_resource_setup(phba); 7510 if (error) { 7511 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7512 "1404 Failed to set up driver resource.\n"); 7513 goto out_unset_pci_mem_s3; 7514 } 7515 7516 /* Initialize and populate the iocb list per host */ 7517 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 7518 if (error) { 7519 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7520 "1405 Failed to initialize iocb list.\n"); 7521 goto out_unset_driver_resource_s3; 7522 } 7523 7524 /* Set up common device driver resources */ 7525 error = lpfc_setup_driver_resource_phase2(phba); 7526 if (error) { 7527 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7528 "1406 Failed to set up driver resource.\n"); 7529 goto out_free_iocb_list; 7530 } 7531 7532 /* Create SCSI host to the physical port */ 7533 error = lpfc_create_shost(phba); 7534 if (error) { 7535 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7536 "1407 Failed to create scsi host.\n"); 7537 goto out_unset_driver_resource; 7538 } 7539 7540 /* Configure sysfs attributes */ 7541 vport = phba->pport; 7542 error = lpfc_alloc_sysfs_attr(vport); 7543 if (error) { 7544 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7545 "1476 Failed to allocate sysfs attr\n"); 7546 goto out_destroy_shost; 7547 } 7548 7549 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 7550 /* Now, trying to enable interrupt and bring up the device */ 7551 cfg_mode = phba->cfg_use_msi; 7552 while (true) { 7553 /* Put device to a known state before enabling interrupt */ 7554 lpfc_stop_port(phba); 7555 /* Configure and enable interrupt */ 7556 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 7557 if (intr_mode == LPFC_INTR_ERROR) { 7558 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7559 "0431 Failed to enable interrupt.\n"); 7560 error = -ENODEV; 7561 goto out_free_sysfs_attr; 7562 } 7563 /* SLI-3 HBA setup */ 7564 if (lpfc_sli_hba_setup(phba)) { 7565 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7566 "1477 Failed to set up hba\n"); 7567 error = -ENODEV; 7568 goto out_remove_device; 7569 } 7570 7571 /* Wait 50ms for the interrupts of previous mailbox commands */ 7572 msleep(50); 7573 /* Check active interrupts on message signaled interrupts */ 7574 if (intr_mode == 0 || 7575 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 7576 /* Log the current active interrupt mode */ 7577 phba->intr_mode = intr_mode; 7578 lpfc_log_intr_mode(phba, intr_mode); 7579 break; 7580 } else { 7581 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7582 "0447 Configure interrupt mode (%d) " 7583 "failed active interrupt test.\n", 7584 intr_mode); 7585 /* Disable the current interrupt mode */ 7586 lpfc_sli_disable_intr(phba); 7587 /* Try next level of interrupt mode */ 7588 cfg_mode = --intr_mode; 7589 } 7590 } 7591 7592 /* Perform post initialization setup */ 7593 lpfc_post_init_setup(phba); 7594 7595 /* Check if there are static vports to be created. */ 7596 lpfc_create_static_vport(phba); 7597 7598 return 0; 7599 7600out_remove_device: 7601 lpfc_unset_hba(phba); 7602out_free_sysfs_attr: 7603 lpfc_free_sysfs_attr(vport); 7604out_destroy_shost: 7605 lpfc_destroy_shost(phba); 7606out_unset_driver_resource: 7607 lpfc_unset_driver_resource_phase2(phba); 7608out_free_iocb_list: 7609 lpfc_free_iocb_list(phba); 7610out_unset_driver_resource_s3: 7611 lpfc_sli_driver_resource_unset(phba); 7612out_unset_pci_mem_s3: 7613 lpfc_sli_pci_mem_unset(phba); 7614out_disable_pci_dev: 7615 lpfc_disable_pci_dev(phba); 7616 if (shost) 7617 scsi_host_put(shost); 7618out_free_phba: 7619 lpfc_hba_free(phba); 7620 return error; 7621} 7622 7623/** 7624 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 7625 * @pdev: pointer to PCI device 7626 * 7627 * This routine is to be called to disattach a device with SLI-3 interface 7628 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 7629 * removed from PCI bus, it performs all the necessary cleanup for the HBA 7630 * device to be removed from the PCI subsystem properly. 7631 **/ 7632static void __devexit 7633lpfc_pci_remove_one_s3(struct pci_dev *pdev) 7634{ 7635 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7636 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7637 struct lpfc_vport **vports; 7638 struct lpfc_hba *phba = vport->phba; 7639 int i; 7640 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 7641 7642 spin_lock_irq(&phba->hbalock); 7643 vport->load_flag |= FC_UNLOADING; 7644 spin_unlock_irq(&phba->hbalock); 7645 7646 lpfc_free_sysfs_attr(vport); 7647 7648 /* Release all the vports against this physical port */ 7649 vports = lpfc_create_vport_work_array(phba); 7650 if (vports != NULL) 7651 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 7652 fc_vport_terminate(vports[i]->fc_vport); 7653 lpfc_destroy_vport_work_array(phba, vports); 7654 7655 /* Remove FC host and then SCSI host with the physical port */ 7656 fc_remove_host(shost); 7657 scsi_remove_host(shost); 7658 lpfc_cleanup(vport); 7659 7660 /* 7661 * Bring down the SLI Layer. This step disable all interrupts, 7662 * clears the rings, discards all mailbox commands, and resets 7663 * the HBA. 7664 */ 7665 7666 /* HBA interrupt will be diabled after this call */ 7667 lpfc_sli_hba_down(phba); 7668 /* Stop kthread signal shall trigger work_done one more time */ 7669 kthread_stop(phba->worker_thread); 7670 /* Final cleanup of txcmplq and reset the HBA */ 7671 lpfc_sli_brdrestart(phba); 7672 7673 lpfc_stop_hba_timers(phba); 7674 spin_lock_irq(&phba->hbalock); 7675 list_del_init(&vport->listentry); 7676 spin_unlock_irq(&phba->hbalock); 7677 7678 lpfc_debugfs_terminate(vport); 7679 7680 /* Disable interrupt */ 7681 lpfc_sli_disable_intr(phba); 7682 7683 pci_set_drvdata(pdev, NULL); 7684 scsi_host_put(shost); 7685 7686 /* 7687 * Call scsi_free before mem_free since scsi bufs are released to their 7688 * corresponding pools here. 7689 */ 7690 lpfc_scsi_free(phba); 7691 lpfc_mem_free_all(phba); 7692 7693 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7694 phba->hbqslimp.virt, phba->hbqslimp.phys); 7695 7696 /* Free resources associated with SLI2 interface */ 7697 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7698 phba->slim2p.virt, phba->slim2p.phys); 7699 7700 /* unmap adapter SLIM and Control Registers */ 7701 iounmap(phba->ctrl_regs_memmap_p); 7702 iounmap(phba->slim_memmap_p); 7703 7704 lpfc_hba_free(phba); 7705 7706 pci_release_selected_regions(pdev, bars); 7707 pci_disable_device(pdev); 7708} 7709 7710/** 7711 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 7712 * @pdev: pointer to PCI device 7713 * @msg: power management message 7714 * 7715 * This routine is to be called from the kernel's PCI subsystem to support 7716 * system Power Management (PM) to device with SLI-3 interface spec. When 7717 * PM invokes this method, it quiesces the device by stopping the driver's 7718 * worker thread for the device, turning off device's interrupt and DMA, 7719 * and bring the device offline. Note that as the driver implements the 7720 * minimum PM requirements to a power-aware driver's PM support for the 7721 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 7722 * to the suspend() method call will be treated as SUSPEND and the driver will 7723 * fully reinitialize its device during resume() method call, the driver will 7724 * set device to PCI_D3hot state in PCI config space instead of setting it 7725 * according to the @msg provided by the PM. 7726 * 7727 * Return code 7728 * 0 - driver suspended the device 7729 * Error otherwise 7730 **/ 7731static int 7732lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 7733{ 7734 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7735 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7736 7737 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7738 "0473 PCI device Power Management suspend.\n"); 7739 7740 /* Bring down the device */ 7741 lpfc_offline_prep(phba); 7742 lpfc_offline(phba); 7743 kthread_stop(phba->worker_thread); 7744 7745 /* Disable interrupt from device */ 7746 lpfc_sli_disable_intr(phba); 7747 7748 /* Save device state to PCI config space */ 7749 pci_save_state(pdev); 7750 pci_set_power_state(pdev, PCI_D3hot); 7751 7752 return 0; 7753} 7754 7755/** 7756 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 7757 * @pdev: pointer to PCI device 7758 * 7759 * This routine is to be called from the kernel's PCI subsystem to support 7760 * system Power Management (PM) to device with SLI-3 interface spec. When PM 7761 * invokes this method, it restores the device's PCI config space state and 7762 * fully reinitializes the device and brings it online. Note that as the 7763 * driver implements the minimum PM requirements to a power-aware driver's 7764 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 7765 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 7766 * driver will fully reinitialize its device during resume() method call, 7767 * the device will be set to PCI_D0 directly in PCI config space before 7768 * restoring the state. 7769 * 7770 * Return code 7771 * 0 - driver suspended the device 7772 * Error otherwise 7773 **/ 7774static int 7775lpfc_pci_resume_one_s3(struct pci_dev *pdev) 7776{ 7777 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7778 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7779 uint32_t intr_mode; 7780 int error; 7781 7782 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7783 "0452 PCI device Power Management resume.\n"); 7784 7785 /* Restore device state from PCI config space */ 7786 pci_set_power_state(pdev, PCI_D0); 7787 pci_restore_state(pdev); 7788 7789 /* 7790 * As the new kernel behavior of pci_restore_state() API call clears 7791 * device saved_state flag, need to save the restored state again. 7792 */ 7793 pci_save_state(pdev); 7794 7795 if (pdev->is_busmaster) 7796 pci_set_master(pdev); 7797 7798 /* Startup the kernel thread for this host adapter. */ 7799 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7800 "lpfc_worker_%d", phba->brd_no); 7801 if (IS_ERR(phba->worker_thread)) { 7802 error = PTR_ERR(phba->worker_thread); 7803 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7804 "0434 PM resume failed to start worker " 7805 "thread: error=x%x.\n", error); 7806 return error; 7807 } 7808 7809 /* Configure and enable interrupt */ 7810 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7811 if (intr_mode == LPFC_INTR_ERROR) { 7812 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7813 "0430 PM resume Failed to enable interrupt\n"); 7814 return -EIO; 7815 } else 7816 phba->intr_mode = intr_mode; 7817 7818 /* Restart HBA and bring it online */ 7819 lpfc_sli_brdrestart(phba); 7820 lpfc_online(phba); 7821 7822 /* Log the current active interrupt mode */ 7823 lpfc_log_intr_mode(phba, phba->intr_mode); 7824 7825 return 0; 7826} 7827 7828/** 7829 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 7830 * @phba: pointer to lpfc hba data structure. 7831 * 7832 * This routine is called to prepare the SLI3 device for PCI slot recover. It 7833 * aborts all the outstanding SCSI I/Os to the pci device. 7834 **/ 7835static void 7836lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 7837{ 7838 struct lpfc_sli *psli = &phba->sli; 7839 struct lpfc_sli_ring *pring; 7840 7841 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7842 "2723 PCI channel I/O abort preparing for recovery\n"); 7843 7844 /* 7845 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 7846 * and let the SCSI mid-layer to retry them to recover. 7847 */ 7848 pring = &psli->ring[psli->fcp_ring]; 7849 lpfc_sli_abort_iocb_ring(phba, pring); 7850} 7851 7852/** 7853 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 7854 * @phba: pointer to lpfc hba data structure. 7855 * 7856 * This routine is called to prepare the SLI3 device for PCI slot reset. It 7857 * disables the device interrupt and pci device, and aborts the internal FCP 7858 * pending I/Os. 7859 **/ 7860static void 7861lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 7862{ 7863 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7864 "2710 PCI channel disable preparing for reset\n"); 7865 7866 /* Block any management I/Os to the device */ 7867 lpfc_block_mgmt_io(phba); 7868 7869 /* Block all SCSI devices' I/Os on the host */ 7870 lpfc_scsi_dev_block(phba); 7871 7872 /* stop all timers */ 7873 lpfc_stop_hba_timers(phba); 7874 7875 /* Disable interrupt and pci device */ 7876 lpfc_sli_disable_intr(phba); 7877 pci_disable_device(phba->pcidev); 7878 7879 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 7880 lpfc_sli_flush_fcp_rings(phba); 7881} 7882 7883/** 7884 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 7885 * @phba: pointer to lpfc hba data structure. 7886 * 7887 * This routine is called to prepare the SLI3 device for PCI slot permanently 7888 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 7889 * pending I/Os. 7890 **/ 7891static void 7892lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 7893{ 7894 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7895 "2711 PCI channel permanent disable for failure\n"); 7896 /* Block all SCSI devices' I/Os on the host */ 7897 lpfc_scsi_dev_block(phba); 7898 7899 /* stop all timers */ 7900 lpfc_stop_hba_timers(phba); 7901 7902 /* Clean up all driver's outstanding SCSI I/Os */ 7903 lpfc_sli_flush_fcp_rings(phba); 7904} 7905 7906/** 7907 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 7908 * @pdev: pointer to PCI device. 7909 * @state: the current PCI connection state. 7910 * 7911 * This routine is called from the PCI subsystem for I/O error handling to 7912 * device with SLI-3 interface spec. This function is called by the PCI 7913 * subsystem after a PCI bus error affecting this device has been detected. 7914 * When this function is invoked, it will need to stop all the I/Os and 7915 * interrupt(s) to the device. Once that is done, it will return 7916 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 7917 * as desired. 7918 * 7919 * Return codes 7920 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 7921 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7922 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7923 **/ 7924static pci_ers_result_t 7925lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 7926{ 7927 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7928 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7929 7930 switch (state) { 7931 case pci_channel_io_normal: 7932 /* Non-fatal error, prepare for recovery */ 7933 lpfc_sli_prep_dev_for_recover(phba); 7934 return PCI_ERS_RESULT_CAN_RECOVER; 7935 case pci_channel_io_frozen: 7936 /* Fatal error, prepare for slot reset */ 7937 lpfc_sli_prep_dev_for_reset(phba); 7938 return PCI_ERS_RESULT_NEED_RESET; 7939 case pci_channel_io_perm_failure: 7940 /* Permanent failure, prepare for device down */ 7941 lpfc_sli_prep_dev_for_perm_failure(phba); 7942 return PCI_ERS_RESULT_DISCONNECT; 7943 default: 7944 /* Unknown state, prepare and request slot reset */ 7945 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7946 "0472 Unknown PCI error state: x%x\n", state); 7947 lpfc_sli_prep_dev_for_reset(phba); 7948 return PCI_ERS_RESULT_NEED_RESET; 7949 } 7950} 7951 7952/** 7953 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 7954 * @pdev: pointer to PCI device. 7955 * 7956 * This routine is called from the PCI subsystem for error handling to 7957 * device with SLI-3 interface spec. This is called after PCI bus has been 7958 * reset to restart the PCI card from scratch, as if from a cold-boot. 7959 * During the PCI subsystem error recovery, after driver returns 7960 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 7961 * recovery and then call this routine before calling the .resume method 7962 * to recover the device. This function will initialize the HBA device, 7963 * enable the interrupt, but it will just put the HBA to offline state 7964 * without passing any I/O traffic. 7965 * 7966 * Return codes 7967 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7968 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7969 */ 7970static pci_ers_result_t 7971lpfc_io_slot_reset_s3(struct pci_dev *pdev) 7972{ 7973 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7974 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7975 struct lpfc_sli *psli = &phba->sli; 7976 uint32_t intr_mode; 7977 7978 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 7979 if (pci_enable_device_mem(pdev)) { 7980 printk(KERN_ERR "lpfc: Cannot re-enable " 7981 "PCI device after reset.\n"); 7982 return PCI_ERS_RESULT_DISCONNECT; 7983 } 7984 7985 pci_restore_state(pdev); 7986 7987 /* 7988 * As the new kernel behavior of pci_restore_state() API call clears 7989 * device saved_state flag, need to save the restored state again. 7990 */ 7991 pci_save_state(pdev); 7992 7993 if (pdev->is_busmaster) 7994 pci_set_master(pdev); 7995 7996 spin_lock_irq(&phba->hbalock); 7997 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 7998 spin_unlock_irq(&phba->hbalock); 7999 8000 /* Configure and enable interrupt */ 8001 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8002 if (intr_mode == LPFC_INTR_ERROR) { 8003 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8004 "0427 Cannot re-enable interrupt after " 8005 "slot reset.\n"); 8006 return PCI_ERS_RESULT_DISCONNECT; 8007 } else 8008 phba->intr_mode = intr_mode; 8009 8010 /* Take device offline, it will perform cleanup */ 8011 lpfc_offline_prep(phba); 8012 lpfc_offline(phba); 8013 lpfc_sli_brdrestart(phba); 8014 8015 /* Log the current active interrupt mode */ 8016 lpfc_log_intr_mode(phba, phba->intr_mode); 8017 8018 return PCI_ERS_RESULT_RECOVERED; 8019} 8020 8021/** 8022 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 8023 * @pdev: pointer to PCI device 8024 * 8025 * This routine is called from the PCI subsystem for error handling to device 8026 * with SLI-3 interface spec. It is called when kernel error recovery tells 8027 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8028 * error recovery. After this call, traffic can start to flow from this device 8029 * again. 8030 */ 8031static void 8032lpfc_io_resume_s3(struct pci_dev *pdev) 8033{ 8034 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8035 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8036 8037 /* Bring device online, it will be no-op for non-fatal error resume */ 8038 lpfc_online(phba); 8039 8040 /* Clean up Advanced Error Reporting (AER) if needed */ 8041 if (phba->hba_flag & HBA_AER_ENABLED) 8042 pci_cleanup_aer_uncorrect_error_status(pdev); 8043} 8044 8045/** 8046 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 8047 * @phba: pointer to lpfc hba data structure. 8048 * 8049 * returns the number of ELS/CT IOCBs to reserve 8050 **/ 8051int 8052lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 8053{ 8054 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 8055 8056 if (phba->sli_rev == LPFC_SLI_REV4) { 8057 if (max_xri <= 100) 8058 return 10; 8059 else if (max_xri <= 256) 8060 return 25; 8061 else if (max_xri <= 512) 8062 return 50; 8063 else if (max_xri <= 1024) 8064 return 100; 8065 else 8066 return 150; 8067 } else 8068 return 0; 8069} 8070 8071/** 8072 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 8073 * @pdev: pointer to PCI device 8074 * @pid: pointer to PCI device identifier 8075 * 8076 * This routine is called from the kernel's PCI subsystem to device with 8077 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8078 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8079 * information of the device and driver to see if the driver state that it 8080 * can support this kind of device. If the match is successful, the driver 8081 * core invokes this routine. If this routine determines it can claim the HBA, 8082 * it does all the initialization that it needs to do to handle the HBA 8083 * properly. 8084 * 8085 * Return code 8086 * 0 - driver can claim the device 8087 * negative value - driver can not claim the device 8088 **/ 8089static int __devinit 8090lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 8091{ 8092 struct lpfc_hba *phba; 8093 struct lpfc_vport *vport = NULL; 8094 struct Scsi_Host *shost = NULL; 8095 int error; 8096 uint32_t cfg_mode, intr_mode; 8097 int mcnt; 8098 8099 /* Allocate memory for HBA structure */ 8100 phba = lpfc_hba_alloc(pdev); 8101 if (!phba) 8102 return -ENOMEM; 8103 8104 /* Perform generic PCI device enabling operation */ 8105 error = lpfc_enable_pci_dev(phba); 8106 if (error) { 8107 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8108 "1409 Failed to enable pci device.\n"); 8109 goto out_free_phba; 8110 } 8111 8112 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 8113 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 8114 if (error) 8115 goto out_disable_pci_dev; 8116 8117 /* Set up SLI-4 specific device PCI memory space */ 8118 error = lpfc_sli4_pci_mem_setup(phba); 8119 if (error) { 8120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8121 "1410 Failed to set up pci memory space.\n"); 8122 goto out_disable_pci_dev; 8123 } 8124 8125 /* Set up phase-1 common device driver resources */ 8126 error = lpfc_setup_driver_resource_phase1(phba); 8127 if (error) { 8128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8129 "1411 Failed to set up driver resource.\n"); 8130 goto out_unset_pci_mem_s4; 8131 } 8132 8133 /* Set up SLI-4 Specific device driver resources */ 8134 error = lpfc_sli4_driver_resource_setup(phba); 8135 if (error) { 8136 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8137 "1412 Failed to set up driver resource.\n"); 8138 goto out_unset_pci_mem_s4; 8139 } 8140 8141 /* Initialize and populate the iocb list per host */ 8142 8143 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8144 "2821 initialize iocb list %d.\n", 8145 phba->cfg_iocb_cnt*1024); 8146 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 8147 8148 if (error) { 8149 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8150 "1413 Failed to initialize iocb list.\n"); 8151 goto out_unset_driver_resource_s4; 8152 } 8153 8154 /* Set up common device driver resources */ 8155 error = lpfc_setup_driver_resource_phase2(phba); 8156 if (error) { 8157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8158 "1414 Failed to set up driver resource.\n"); 8159 goto out_free_iocb_list; 8160 } 8161 8162 /* Create SCSI host to the physical port */ 8163 error = lpfc_create_shost(phba); 8164 if (error) { 8165 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8166 "1415 Failed to create scsi host.\n"); 8167 goto out_unset_driver_resource; 8168 } 8169 8170 /* Configure sysfs attributes */ 8171 vport = phba->pport; 8172 error = lpfc_alloc_sysfs_attr(vport); 8173 if (error) { 8174 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8175 "1416 Failed to allocate sysfs attr\n"); 8176 goto out_destroy_shost; 8177 } 8178 8179 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8180 /* Now, trying to enable interrupt and bring up the device */ 8181 cfg_mode = phba->cfg_use_msi; 8182 while (true) { 8183 /* Put device to a known state before enabling interrupt */ 8184 lpfc_stop_port(phba); 8185 /* Configure and enable interrupt */ 8186 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 8187 if (intr_mode == LPFC_INTR_ERROR) { 8188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8189 "0426 Failed to enable interrupt.\n"); 8190 error = -ENODEV; 8191 goto out_free_sysfs_attr; 8192 } 8193 /* Default to single FCP EQ for non-MSI-X */ 8194 if (phba->intr_type != MSIX) 8195 phba->cfg_fcp_eq_count = 1; 8196 else if (phba->sli4_hba.msix_vec_nr < phba->cfg_fcp_eq_count) 8197 phba->cfg_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1; 8198 /* Set up SLI-4 HBA */ 8199 if (lpfc_sli4_hba_setup(phba)) { 8200 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8201 "1421 Failed to set up hba\n"); 8202 error = -ENODEV; 8203 goto out_disable_intr; 8204 } 8205 8206 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 8207 if (intr_mode != 0) 8208 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 8209 LPFC_ACT_INTR_CNT); 8210 8211 /* Check active interrupts received only for MSI/MSI-X */ 8212 if (intr_mode == 0 || 8213 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 8214 /* Log the current active interrupt mode */ 8215 phba->intr_mode = intr_mode; 8216 lpfc_log_intr_mode(phba, intr_mode); 8217 break; 8218 } 8219 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8220 "0451 Configure interrupt mode (%d) " 8221 "failed active interrupt test.\n", 8222 intr_mode); 8223 /* Unset the preivous SLI-4 HBA setup */ 8224 lpfc_sli4_unset_hba(phba); 8225 /* Try next level of interrupt mode */ 8226 cfg_mode = --intr_mode; 8227 } 8228 8229 /* Perform post initialization setup */ 8230 lpfc_post_init_setup(phba); 8231 8232 /* Check if there are static vports to be created. */ 8233 lpfc_create_static_vport(phba); 8234 8235 return 0; 8236 8237out_disable_intr: 8238 lpfc_sli4_disable_intr(phba); 8239out_free_sysfs_attr: 8240 lpfc_free_sysfs_attr(vport); 8241out_destroy_shost: 8242 lpfc_destroy_shost(phba); 8243out_unset_driver_resource: 8244 lpfc_unset_driver_resource_phase2(phba); 8245out_free_iocb_list: 8246 lpfc_free_iocb_list(phba); 8247out_unset_driver_resource_s4: 8248 lpfc_sli4_driver_resource_unset(phba); 8249out_unset_pci_mem_s4: 8250 lpfc_sli4_pci_mem_unset(phba); 8251out_disable_pci_dev: 8252 lpfc_disable_pci_dev(phba); 8253 if (shost) 8254 scsi_host_put(shost); 8255out_free_phba: 8256 lpfc_hba_free(phba); 8257 return error; 8258} 8259 8260/** 8261 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 8262 * @pdev: pointer to PCI device 8263 * 8264 * This routine is called from the kernel's PCI subsystem to device with 8265 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8266 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8267 * device to be removed from the PCI subsystem properly. 8268 **/ 8269static void __devexit 8270lpfc_pci_remove_one_s4(struct pci_dev *pdev) 8271{ 8272 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8273 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8274 struct lpfc_vport **vports; 8275 struct lpfc_hba *phba = vport->phba; 8276 int i; 8277 8278 /* Mark the device unloading flag */ 8279 spin_lock_irq(&phba->hbalock); 8280 vport->load_flag |= FC_UNLOADING; 8281 spin_unlock_irq(&phba->hbalock); 8282 8283 /* Free the HBA sysfs attributes */ 8284 lpfc_free_sysfs_attr(vport); 8285 8286 /* Release all the vports against this physical port */ 8287 vports = lpfc_create_vport_work_array(phba); 8288 if (vports != NULL) 8289 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 8290 fc_vport_terminate(vports[i]->fc_vport); 8291 lpfc_destroy_vport_work_array(phba, vports); 8292 8293 /* Remove FC host and then SCSI host with the physical port */ 8294 fc_remove_host(shost); 8295 scsi_remove_host(shost); 8296 8297 /* Perform cleanup on the physical port */ 8298 lpfc_cleanup(vport); 8299 8300 /* 8301 * Bring down the SLI Layer. This step disables all interrupts, 8302 * clears the rings, discards all mailbox commands, and resets 8303 * the HBA FCoE function. 8304 */ 8305 lpfc_debugfs_terminate(vport); 8306 lpfc_sli4_hba_unset(phba); 8307 8308 spin_lock_irq(&phba->hbalock); 8309 list_del_init(&vport->listentry); 8310 spin_unlock_irq(&phba->hbalock); 8311 8312 /* Perform scsi free before driver resource_unset since scsi 8313 * buffers are released to their corresponding pools here. 8314 */ 8315 lpfc_scsi_free(phba); 8316 lpfc_sli4_driver_resource_unset(phba); 8317 8318 /* Unmap adapter Control and Doorbell registers */ 8319 lpfc_sli4_pci_mem_unset(phba); 8320 8321 /* Release PCI resources and disable device's PCI function */ 8322 scsi_host_put(shost); 8323 lpfc_disable_pci_dev(phba); 8324 8325 /* Finally, free the driver's device data structure */ 8326 lpfc_hba_free(phba); 8327 8328 return; 8329} 8330 8331/** 8332 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 8333 * @pdev: pointer to PCI device 8334 * @msg: power management message 8335 * 8336 * This routine is called from the kernel's PCI subsystem to support system 8337 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 8338 * this method, it quiesces the device by stopping the driver's worker 8339 * thread for the device, turning off device's interrupt and DMA, and bring 8340 * the device offline. Note that as the driver implements the minimum PM 8341 * requirements to a power-aware driver's PM support for suspend/resume -- all 8342 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 8343 * method call will be treated as SUSPEND and the driver will fully 8344 * reinitialize its device during resume() method call, the driver will set 8345 * device to PCI_D3hot state in PCI config space instead of setting it 8346 * according to the @msg provided by the PM. 8347 * 8348 * Return code 8349 * 0 - driver suspended the device 8350 * Error otherwise 8351 **/ 8352static int 8353lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 8354{ 8355 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8356 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8357 8358 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8359 "2843 PCI device Power Management suspend.\n"); 8360 8361 /* Bring down the device */ 8362 lpfc_offline_prep(phba); 8363 lpfc_offline(phba); 8364 kthread_stop(phba->worker_thread); 8365 8366 /* Disable interrupt from device */ 8367 lpfc_sli4_disable_intr(phba); 8368 8369 /* Save device state to PCI config space */ 8370 pci_save_state(pdev); 8371 pci_set_power_state(pdev, PCI_D3hot); 8372 8373 return 0; 8374} 8375 8376/** 8377 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 8378 * @pdev: pointer to PCI device 8379 * 8380 * This routine is called from the kernel's PCI subsystem to support system 8381 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 8382 * this method, it restores the device's PCI config space state and fully 8383 * reinitializes the device and brings it online. Note that as the driver 8384 * implements the minimum PM requirements to a power-aware driver's PM for 8385 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8386 * to the suspend() method call will be treated as SUSPEND and the driver 8387 * will fully reinitialize its device during resume() method call, the device 8388 * will be set to PCI_D0 directly in PCI config space before restoring the 8389 * state. 8390 * 8391 * Return code 8392 * 0 - driver suspended the device 8393 * Error otherwise 8394 **/ 8395static int 8396lpfc_pci_resume_one_s4(struct pci_dev *pdev) 8397{ 8398 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8399 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8400 uint32_t intr_mode; 8401 int error; 8402 8403 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8404 "0292 PCI device Power Management resume.\n"); 8405 8406 /* Restore device state from PCI config space */ 8407 pci_set_power_state(pdev, PCI_D0); 8408 pci_restore_state(pdev); 8409 8410 /* 8411 * As the new kernel behavior of pci_restore_state() API call clears 8412 * device saved_state flag, need to save the restored state again. 8413 */ 8414 pci_save_state(pdev); 8415 8416 if (pdev->is_busmaster) 8417 pci_set_master(pdev); 8418 8419 /* Startup the kernel thread for this host adapter. */ 8420 phba->worker_thread = kthread_run(lpfc_do_work, phba, 8421 "lpfc_worker_%d", phba->brd_no); 8422 if (IS_ERR(phba->worker_thread)) { 8423 error = PTR_ERR(phba->worker_thread); 8424 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8425 "0293 PM resume failed to start worker " 8426 "thread: error=x%x.\n", error); 8427 return error; 8428 } 8429 8430 /* Configure and enable interrupt */ 8431 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 8432 if (intr_mode == LPFC_INTR_ERROR) { 8433 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8434 "0294 PM resume Failed to enable interrupt\n"); 8435 return -EIO; 8436 } else 8437 phba->intr_mode = intr_mode; 8438 8439 /* Restart HBA and bring it online */ 8440 lpfc_sli_brdrestart(phba); 8441 lpfc_online(phba); 8442 8443 /* Log the current active interrupt mode */ 8444 lpfc_log_intr_mode(phba, phba->intr_mode); 8445 8446 return 0; 8447} 8448 8449/** 8450 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 8451 * @phba: pointer to lpfc hba data structure. 8452 * 8453 * This routine is called to prepare the SLI4 device for PCI slot recover. It 8454 * aborts all the outstanding SCSI I/Os to the pci device. 8455 **/ 8456static void 8457lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 8458{ 8459 struct lpfc_sli *psli = &phba->sli; 8460 struct lpfc_sli_ring *pring; 8461 8462 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8463 "2828 PCI channel I/O abort preparing for recovery\n"); 8464 /* 8465 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 8466 * and let the SCSI mid-layer to retry them to recover. 8467 */ 8468 pring = &psli->ring[psli->fcp_ring]; 8469 lpfc_sli_abort_iocb_ring(phba, pring); 8470} 8471 8472/** 8473 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 8474 * @phba: pointer to lpfc hba data structure. 8475 * 8476 * This routine is called to prepare the SLI4 device for PCI slot reset. It 8477 * disables the device interrupt and pci device, and aborts the internal FCP 8478 * pending I/Os. 8479 **/ 8480static void 8481lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 8482{ 8483 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8484 "2826 PCI channel disable preparing for reset\n"); 8485 8486 /* Block any management I/Os to the device */ 8487 lpfc_block_mgmt_io(phba); 8488 8489 /* Block all SCSI devices' I/Os on the host */ 8490 lpfc_scsi_dev_block(phba); 8491 8492 /* stop all timers */ 8493 lpfc_stop_hba_timers(phba); 8494 8495 /* Disable interrupt and pci device */ 8496 lpfc_sli4_disable_intr(phba); 8497 pci_disable_device(phba->pcidev); 8498 8499 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 8500 lpfc_sli_flush_fcp_rings(phba); 8501} 8502 8503/** 8504 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 8505 * @phba: pointer to lpfc hba data structure. 8506 * 8507 * This routine is called to prepare the SLI4 device for PCI slot permanently 8508 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 8509 * pending I/Os. 8510 **/ 8511static void 8512lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 8513{ 8514 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8515 "2827 PCI channel permanent disable for failure\n"); 8516 8517 /* Block all SCSI devices' I/Os on the host */ 8518 lpfc_scsi_dev_block(phba); 8519 8520 /* stop all timers */ 8521 lpfc_stop_hba_timers(phba); 8522 8523 /* Clean up all driver's outstanding SCSI I/Os */ 8524 lpfc_sli_flush_fcp_rings(phba); 8525} 8526 8527/** 8528 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 8529 * @pdev: pointer to PCI device. 8530 * @state: the current PCI connection state. 8531 * 8532 * This routine is called from the PCI subsystem for error handling to device 8533 * with SLI-4 interface spec. This function is called by the PCI subsystem 8534 * after a PCI bus error affecting this device has been detected. When this 8535 * function is invoked, it will need to stop all the I/Os and interrupt(s) 8536 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 8537 * for the PCI subsystem to perform proper recovery as desired. 8538 * 8539 * Return codes 8540 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8541 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8542 **/ 8543static pci_ers_result_t 8544lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 8545{ 8546 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8547 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8548 8549 switch (state) { 8550 case pci_channel_io_normal: 8551 /* Non-fatal error, prepare for recovery */ 8552 lpfc_sli4_prep_dev_for_recover(phba); 8553 return PCI_ERS_RESULT_CAN_RECOVER; 8554 case pci_channel_io_frozen: 8555 /* Fatal error, prepare for slot reset */ 8556 lpfc_sli4_prep_dev_for_reset(phba); 8557 return PCI_ERS_RESULT_NEED_RESET; 8558 case pci_channel_io_perm_failure: 8559 /* Permanent failure, prepare for device down */ 8560 lpfc_sli4_prep_dev_for_perm_failure(phba); 8561 return PCI_ERS_RESULT_DISCONNECT; 8562 default: 8563 /* Unknown state, prepare and request slot reset */ 8564 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8565 "2825 Unknown PCI error state: x%x\n", state); 8566 lpfc_sli4_prep_dev_for_reset(phba); 8567 return PCI_ERS_RESULT_NEED_RESET; 8568 } 8569} 8570 8571/** 8572 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 8573 * @pdev: pointer to PCI device. 8574 * 8575 * This routine is called from the PCI subsystem for error handling to device 8576 * with SLI-4 interface spec. It is called after PCI bus has been reset to 8577 * restart the PCI card from scratch, as if from a cold-boot. During the 8578 * PCI subsystem error recovery, after the driver returns 8579 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 8580 * recovery and then call this routine before calling the .resume method to 8581 * recover the device. This function will initialize the HBA device, enable 8582 * the interrupt, but it will just put the HBA to offline state without 8583 * passing any I/O traffic. 8584 * 8585 * Return codes 8586 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8587 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8588 */ 8589static pci_ers_result_t 8590lpfc_io_slot_reset_s4(struct pci_dev *pdev) 8591{ 8592 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8593 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8594 struct lpfc_sli *psli = &phba->sli; 8595 uint32_t intr_mode; 8596 8597 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 8598 if (pci_enable_device_mem(pdev)) { 8599 printk(KERN_ERR "lpfc: Cannot re-enable " 8600 "PCI device after reset.\n"); 8601 return PCI_ERS_RESULT_DISCONNECT; 8602 } 8603 8604 pci_restore_state(pdev); 8605 if (pdev->is_busmaster) 8606 pci_set_master(pdev); 8607 8608 spin_lock_irq(&phba->hbalock); 8609 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 8610 spin_unlock_irq(&phba->hbalock); 8611 8612 /* Configure and enable interrupt */ 8613 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 8614 if (intr_mode == LPFC_INTR_ERROR) { 8615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8616 "2824 Cannot re-enable interrupt after " 8617 "slot reset.\n"); 8618 return PCI_ERS_RESULT_DISCONNECT; 8619 } else 8620 phba->intr_mode = intr_mode; 8621 8622 /* Log the current active interrupt mode */ 8623 lpfc_log_intr_mode(phba, phba->intr_mode); 8624 8625 return PCI_ERS_RESULT_RECOVERED; 8626} 8627 8628/** 8629 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 8630 * @pdev: pointer to PCI device 8631 * 8632 * This routine is called from the PCI subsystem for error handling to device 8633 * with SLI-4 interface spec. It is called when kernel error recovery tells 8634 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8635 * error recovery. After this call, traffic can start to flow from this device 8636 * again. 8637 **/ 8638static void 8639lpfc_io_resume_s4(struct pci_dev *pdev) 8640{ 8641 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8642 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8643 8644 /* 8645 * In case of slot reset, as function reset is performed through 8646 * mailbox command which needs DMA to be enabled, this operation 8647 * has to be moved to the io resume phase. Taking device offline 8648 * will perform the necessary cleanup. 8649 */ 8650 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 8651 /* Perform device reset */ 8652 lpfc_offline_prep(phba); 8653 lpfc_offline(phba); 8654 lpfc_sli_brdrestart(phba); 8655 /* Bring the device back online */ 8656 lpfc_online(phba); 8657 } 8658 8659 /* Clean up Advanced Error Reporting (AER) if needed */ 8660 if (phba->hba_flag & HBA_AER_ENABLED) 8661 pci_cleanup_aer_uncorrect_error_status(pdev); 8662} 8663 8664/** 8665 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 8666 * @pdev: pointer to PCI device 8667 * @pid: pointer to PCI device identifier 8668 * 8669 * This routine is to be registered to the kernel's PCI subsystem. When an 8670 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 8671 * at PCI device-specific information of the device and driver to see if the 8672 * driver state that it can support this kind of device. If the match is 8673 * successful, the driver core invokes this routine. This routine dispatches 8674 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 8675 * do all the initialization that it needs to do to handle the HBA device 8676 * properly. 8677 * 8678 * Return code 8679 * 0 - driver can claim the device 8680 * negative value - driver can not claim the device 8681 **/ 8682static int __devinit 8683lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 8684{ 8685 int rc; 8686 struct lpfc_sli_intf intf; 8687 8688 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 8689 return -ENODEV; 8690 8691 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 8692 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 8693 rc = lpfc_pci_probe_one_s4(pdev, pid); 8694 else 8695 rc = lpfc_pci_probe_one_s3(pdev, pid); 8696 8697 return rc; 8698} 8699 8700/** 8701 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 8702 * @pdev: pointer to PCI device 8703 * 8704 * This routine is to be registered to the kernel's PCI subsystem. When an 8705 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 8706 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 8707 * remove routine, which will perform all the necessary cleanup for the 8708 * device to be removed from the PCI subsystem properly. 8709 **/ 8710static void __devexit 8711lpfc_pci_remove_one(struct pci_dev *pdev) 8712{ 8713 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8714 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8715 8716 switch (phba->pci_dev_grp) { 8717 case LPFC_PCI_DEV_LP: 8718 lpfc_pci_remove_one_s3(pdev); 8719 break; 8720 case LPFC_PCI_DEV_OC: 8721 lpfc_pci_remove_one_s4(pdev); 8722 break; 8723 default: 8724 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8725 "1424 Invalid PCI device group: 0x%x\n", 8726 phba->pci_dev_grp); 8727 break; 8728 } 8729 return; 8730} 8731 8732/** 8733 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 8734 * @pdev: pointer to PCI device 8735 * @msg: power management message 8736 * 8737 * This routine is to be registered to the kernel's PCI subsystem to support 8738 * system Power Management (PM). When PM invokes this method, it dispatches 8739 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 8740 * suspend the device. 8741 * 8742 * Return code 8743 * 0 - driver suspended the device 8744 * Error otherwise 8745 **/ 8746static int 8747lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 8748{ 8749 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8750 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8751 int rc = -ENODEV; 8752 8753 switch (phba->pci_dev_grp) { 8754 case LPFC_PCI_DEV_LP: 8755 rc = lpfc_pci_suspend_one_s3(pdev, msg); 8756 break; 8757 case LPFC_PCI_DEV_OC: 8758 rc = lpfc_pci_suspend_one_s4(pdev, msg); 8759 break; 8760 default: 8761 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8762 "1425 Invalid PCI device group: 0x%x\n", 8763 phba->pci_dev_grp); 8764 break; 8765 } 8766 return rc; 8767} 8768 8769/** 8770 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 8771 * @pdev: pointer to PCI device 8772 * 8773 * This routine is to be registered to the kernel's PCI subsystem to support 8774 * system Power Management (PM). When PM invokes this method, it dispatches 8775 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 8776 * resume the device. 8777 * 8778 * Return code 8779 * 0 - driver suspended the device 8780 * Error otherwise 8781 **/ 8782static int 8783lpfc_pci_resume_one(struct pci_dev *pdev) 8784{ 8785 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8786 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8787 int rc = -ENODEV; 8788 8789 switch (phba->pci_dev_grp) { 8790 case LPFC_PCI_DEV_LP: 8791 rc = lpfc_pci_resume_one_s3(pdev); 8792 break; 8793 case LPFC_PCI_DEV_OC: 8794 rc = lpfc_pci_resume_one_s4(pdev); 8795 break; 8796 default: 8797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8798 "1426 Invalid PCI device group: 0x%x\n", 8799 phba->pci_dev_grp); 8800 break; 8801 } 8802 return rc; 8803} 8804 8805/** 8806 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 8807 * @pdev: pointer to PCI device. 8808 * @state: the current PCI connection state. 8809 * 8810 * This routine is registered to the PCI subsystem for error handling. This 8811 * function is called by the PCI subsystem after a PCI bus error affecting 8812 * this device has been detected. When this routine is invoked, it dispatches 8813 * the action to the proper SLI-3 or SLI-4 device error detected handling 8814 * routine, which will perform the proper error detected operation. 8815 * 8816 * Return codes 8817 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8818 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8819 **/ 8820static pci_ers_result_t 8821lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 8822{ 8823 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8824 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8825 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 8826 8827 switch (phba->pci_dev_grp) { 8828 case LPFC_PCI_DEV_LP: 8829 rc = lpfc_io_error_detected_s3(pdev, state); 8830 break; 8831 case LPFC_PCI_DEV_OC: 8832 rc = lpfc_io_error_detected_s4(pdev, state); 8833 break; 8834 default: 8835 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8836 "1427 Invalid PCI device group: 0x%x\n", 8837 phba->pci_dev_grp); 8838 break; 8839 } 8840 return rc; 8841} 8842 8843/** 8844 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 8845 * @pdev: pointer to PCI device. 8846 * 8847 * This routine is registered to the PCI subsystem for error handling. This 8848 * function is called after PCI bus has been reset to restart the PCI card 8849 * from scratch, as if from a cold-boot. When this routine is invoked, it 8850 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 8851 * routine, which will perform the proper device reset. 8852 * 8853 * Return codes 8854 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8855 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8856 **/ 8857static pci_ers_result_t 8858lpfc_io_slot_reset(struct pci_dev *pdev) 8859{ 8860 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8861 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8862 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 8863 8864 switch (phba->pci_dev_grp) { 8865 case LPFC_PCI_DEV_LP: 8866 rc = lpfc_io_slot_reset_s3(pdev); 8867 break; 8868 case LPFC_PCI_DEV_OC: 8869 rc = lpfc_io_slot_reset_s4(pdev); 8870 break; 8871 default: 8872 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8873 "1428 Invalid PCI device group: 0x%x\n", 8874 phba->pci_dev_grp); 8875 break; 8876 } 8877 return rc; 8878} 8879 8880/** 8881 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 8882 * @pdev: pointer to PCI device 8883 * 8884 * This routine is registered to the PCI subsystem for error handling. It 8885 * is called when kernel error recovery tells the lpfc driver that it is 8886 * OK to resume normal PCI operation after PCI bus error recovery. When 8887 * this routine is invoked, it dispatches the action to the proper SLI-3 8888 * or SLI-4 device io_resume routine, which will resume the device operation. 8889 **/ 8890static void 8891lpfc_io_resume(struct pci_dev *pdev) 8892{ 8893 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8894 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8895 8896 switch (phba->pci_dev_grp) { 8897 case LPFC_PCI_DEV_LP: 8898 lpfc_io_resume_s3(pdev); 8899 break; 8900 case LPFC_PCI_DEV_OC: 8901 lpfc_io_resume_s4(pdev); 8902 break; 8903 default: 8904 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8905 "1429 Invalid PCI device group: 0x%x\n", 8906 phba->pci_dev_grp); 8907 break; 8908 } 8909 return; 8910} 8911 8912static struct pci_device_id lpfc_id_table[] = { 8913 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 8914 PCI_ANY_ID, PCI_ANY_ID, }, 8915 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 8916 PCI_ANY_ID, PCI_ANY_ID, }, 8917 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 8918 PCI_ANY_ID, PCI_ANY_ID, }, 8919 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 8920 PCI_ANY_ID, PCI_ANY_ID, }, 8921 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 8922 PCI_ANY_ID, PCI_ANY_ID, }, 8923 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 8924 PCI_ANY_ID, PCI_ANY_ID, }, 8925 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 8926 PCI_ANY_ID, PCI_ANY_ID, }, 8927 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 8928 PCI_ANY_ID, PCI_ANY_ID, }, 8929 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 8930 PCI_ANY_ID, PCI_ANY_ID, }, 8931 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 8932 PCI_ANY_ID, PCI_ANY_ID, }, 8933 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 8934 PCI_ANY_ID, PCI_ANY_ID, }, 8935 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 8936 PCI_ANY_ID, PCI_ANY_ID, }, 8937 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 8938 PCI_ANY_ID, PCI_ANY_ID, }, 8939 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 8940 PCI_ANY_ID, PCI_ANY_ID, }, 8941 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 8942 PCI_ANY_ID, PCI_ANY_ID, }, 8943 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 8944 PCI_ANY_ID, PCI_ANY_ID, }, 8945 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 8946 PCI_ANY_ID, PCI_ANY_ID, }, 8947 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 8948 PCI_ANY_ID, PCI_ANY_ID, }, 8949 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 8950 PCI_ANY_ID, PCI_ANY_ID, }, 8951 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 8952 PCI_ANY_ID, PCI_ANY_ID, }, 8953 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 8954 PCI_ANY_ID, PCI_ANY_ID, }, 8955 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 8956 PCI_ANY_ID, PCI_ANY_ID, }, 8957 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 8958 PCI_ANY_ID, PCI_ANY_ID, }, 8959 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 8960 PCI_ANY_ID, PCI_ANY_ID, }, 8961 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 8962 PCI_ANY_ID, PCI_ANY_ID, }, 8963 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 8964 PCI_ANY_ID, PCI_ANY_ID, }, 8965 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 8966 PCI_ANY_ID, PCI_ANY_ID, }, 8967 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 8968 PCI_ANY_ID, PCI_ANY_ID, }, 8969 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 8970 PCI_ANY_ID, PCI_ANY_ID, }, 8971 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 8972 PCI_ANY_ID, PCI_ANY_ID, }, 8973 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 8974 PCI_ANY_ID, PCI_ANY_ID, }, 8975 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 8976 PCI_ANY_ID, PCI_ANY_ID, }, 8977 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 8978 PCI_ANY_ID, PCI_ANY_ID, }, 8979 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 8980 PCI_ANY_ID, PCI_ANY_ID, }, 8981 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 8982 PCI_ANY_ID, PCI_ANY_ID, }, 8983 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 8984 PCI_ANY_ID, PCI_ANY_ID, }, 8985 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 8986 PCI_ANY_ID, PCI_ANY_ID, }, 8987 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 8988 PCI_ANY_ID, PCI_ANY_ID, }, 8989 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 8990 PCI_ANY_ID, PCI_ANY_ID, }, 8991 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 8992 PCI_ANY_ID, PCI_ANY_ID, }, 8993 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 8994 PCI_ANY_ID, PCI_ANY_ID, }, 8995 { 0 } 8996}; 8997 8998MODULE_DEVICE_TABLE(pci, lpfc_id_table); 8999 9000static struct pci_error_handlers lpfc_err_handler = { 9001 .error_detected = lpfc_io_error_detected, 9002 .slot_reset = lpfc_io_slot_reset, 9003 .resume = lpfc_io_resume, 9004}; 9005 9006static struct pci_driver lpfc_driver = { 9007 .name = LPFC_DRIVER_NAME, 9008 .id_table = lpfc_id_table, 9009 .probe = lpfc_pci_probe_one, 9010 .remove = __devexit_p(lpfc_pci_remove_one), 9011 .suspend = lpfc_pci_suspend_one, 9012 .resume = lpfc_pci_resume_one, 9013 .err_handler = &lpfc_err_handler, 9014}; 9015 9016/** 9017 * lpfc_init - lpfc module initialization routine 9018 * 9019 * This routine is to be invoked when the lpfc module is loaded into the 9020 * kernel. The special kernel macro module_init() is used to indicate the 9021 * role of this routine to the kernel as lpfc module entry point. 9022 * 9023 * Return codes 9024 * 0 - successful 9025 * -ENOMEM - FC attach transport failed 9026 * all others - failed 9027 */ 9028static int __init 9029lpfc_init(void) 9030{ 9031 int error = 0; 9032 9033 printk(LPFC_MODULE_DESC "\n"); 9034 printk(LPFC_COPYRIGHT "\n"); 9035 9036 if (lpfc_enable_npiv) { 9037 lpfc_transport_functions.vport_create = lpfc_vport_create; 9038 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 9039 } 9040 lpfc_transport_template = 9041 fc_attach_transport(&lpfc_transport_functions); 9042 if (lpfc_transport_template == NULL) 9043 return -ENOMEM; 9044 if (lpfc_enable_npiv) { 9045 lpfc_vport_transport_template = 9046 fc_attach_transport(&lpfc_vport_transport_functions); 9047 if (lpfc_vport_transport_template == NULL) { 9048 fc_release_transport(lpfc_transport_template); 9049 return -ENOMEM; 9050 } 9051 } 9052 error = pci_register_driver(&lpfc_driver); 9053 if (error) { 9054 fc_release_transport(lpfc_transport_template); 9055 if (lpfc_enable_npiv) 9056 fc_release_transport(lpfc_vport_transport_template); 9057 } 9058 9059 return error; 9060} 9061 9062/** 9063 * lpfc_exit - lpfc module removal routine 9064 * 9065 * This routine is invoked when the lpfc module is removed from the kernel. 9066 * The special kernel macro module_exit() is used to indicate the role of 9067 * this routine to the kernel as lpfc module exit point. 9068 */ 9069static void __exit 9070lpfc_exit(void) 9071{ 9072 pci_unregister_driver(&lpfc_driver); 9073 fc_release_transport(lpfc_transport_template); 9074 if (lpfc_enable_npiv) 9075 fc_release_transport(lpfc_vport_transport_template); 9076 if (_dump_buf_data) { 9077 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 9078 "_dump_buf_data at 0x%p\n", 9079 (1L << _dump_buf_data_order), _dump_buf_data); 9080 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 9081 } 9082 9083 if (_dump_buf_dif) { 9084 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 9085 "_dump_buf_dif at 0x%p\n", 9086 (1L << _dump_buf_dif_order), _dump_buf_dif); 9087 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 9088 } 9089} 9090 9091module_init(lpfc_init); 9092module_exit(lpfc_exit); 9093MODULE_LICENSE("GPL"); 9094MODULE_DESCRIPTION(LPFC_MODULE_DESC); 9095MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 9096MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 9097