lpfc_init.c revision 32b9793fe6ff09a85f36b8bd7d6ff214653a7497
1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2009 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 10 * modify it under the terms of version 2 of the GNU General * 11 * Public License as published by the Free Software Foundation. * 12 * This program is distributed in the hope that it will be useful. * 13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17 * TO BE LEGALLY INVALID. See the GNU General Public License for * 18 * more details, a copy of which can be found in the file COPYING * 19 * included with this package. * 20 *******************************************************************/ 21 22#include <linux/blkdev.h> 23#include <linux/delay.h> 24#include <linux/dma-mapping.h> 25#include <linux/idr.h> 26#include <linux/interrupt.h> 27#include <linux/kthread.h> 28#include <linux/pci.h> 29#include <linux/spinlock.h> 30#include <linux/ctype.h> 31 32#include <scsi/scsi.h> 33#include <scsi/scsi_device.h> 34#include <scsi/scsi_host.h> 35#include <scsi/scsi_transport_fc.h> 36 37#include "lpfc_hw4.h" 38#include "lpfc_hw.h" 39#include "lpfc_sli.h" 40#include "lpfc_sli4.h" 41#include "lpfc_nl.h" 42#include "lpfc_disc.h" 43#include "lpfc_scsi.h" 44#include "lpfc.h" 45#include "lpfc_logmsg.h" 46#include "lpfc_crtn.h" 47#include "lpfc_vport.h" 48#include "lpfc_version.h" 49 50char *_dump_buf_data; 51unsigned long _dump_buf_data_order; 52char *_dump_buf_dif; 53unsigned long _dump_buf_dif_order; 54spinlock_t _dump_buf_lock; 55 56static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 57static int lpfc_post_rcv_buf(struct lpfc_hba *); 58static int lpfc_sli4_queue_create(struct lpfc_hba *); 59static void lpfc_sli4_queue_destroy(struct lpfc_hba *); 60static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 61static int lpfc_setup_endian_order(struct lpfc_hba *); 62static int lpfc_sli4_read_config(struct lpfc_hba *); 63static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 64static void lpfc_free_sgl_list(struct lpfc_hba *); 65static int lpfc_init_sgl_list(struct lpfc_hba *); 66static int lpfc_init_active_sgl_array(struct lpfc_hba *); 67static void lpfc_free_active_sgl(struct lpfc_hba *); 68static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 69static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 70static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 71static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 72static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 73 74static struct scsi_transport_template *lpfc_transport_template = NULL; 75static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 76static DEFINE_IDR(lpfc_hba_index); 77 78/** 79 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 80 * @phba: pointer to lpfc hba data structure. 81 * 82 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 83 * mailbox command. It retrieves the revision information from the HBA and 84 * collects the Vital Product Data (VPD) about the HBA for preparing the 85 * configuration of the HBA. 86 * 87 * Return codes: 88 * 0 - success. 89 * -ERESTART - requests the SLI layer to reset the HBA and try again. 90 * Any other value - indicates an error. 91 **/ 92int 93lpfc_config_port_prep(struct lpfc_hba *phba) 94{ 95 lpfc_vpd_t *vp = &phba->vpd; 96 int i = 0, rc; 97 LPFC_MBOXQ_t *pmb; 98 MAILBOX_t *mb; 99 char *lpfc_vpd_data = NULL; 100 uint16_t offset = 0; 101 static char licensed[56] = 102 "key unlock for use with gnu public licensed code only\0"; 103 static int init_key = 1; 104 105 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 106 if (!pmb) { 107 phba->link_state = LPFC_HBA_ERROR; 108 return -ENOMEM; 109 } 110 111 mb = &pmb->u.mb; 112 phba->link_state = LPFC_INIT_MBX_CMDS; 113 114 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 115 if (init_key) { 116 uint32_t *ptext = (uint32_t *) licensed; 117 118 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 119 *ptext = cpu_to_be32(*ptext); 120 init_key = 0; 121 } 122 123 lpfc_read_nv(phba, pmb); 124 memset((char*)mb->un.varRDnvp.rsvd3, 0, 125 sizeof (mb->un.varRDnvp.rsvd3)); 126 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 127 sizeof (licensed)); 128 129 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 130 131 if (rc != MBX_SUCCESS) { 132 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 133 "0324 Config Port initialization " 134 "error, mbxCmd x%x READ_NVPARM, " 135 "mbxStatus x%x\n", 136 mb->mbxCommand, mb->mbxStatus); 137 mempool_free(pmb, phba->mbox_mem_pool); 138 return -ERESTART; 139 } 140 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 141 sizeof(phba->wwnn)); 142 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 143 sizeof(phba->wwpn)); 144 } 145 146 phba->sli3_options = 0x0; 147 148 /* Setup and issue mailbox READ REV command */ 149 lpfc_read_rev(phba, pmb); 150 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 151 if (rc != MBX_SUCCESS) { 152 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 153 "0439 Adapter failed to init, mbxCmd x%x " 154 "READ_REV, mbxStatus x%x\n", 155 mb->mbxCommand, mb->mbxStatus); 156 mempool_free( pmb, phba->mbox_mem_pool); 157 return -ERESTART; 158 } 159 160 161 /* 162 * The value of rr must be 1 since the driver set the cv field to 1. 163 * This setting requires the FW to set all revision fields. 164 */ 165 if (mb->un.varRdRev.rr == 0) { 166 vp->rev.rBit = 0; 167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 168 "0440 Adapter failed to init, READ_REV has " 169 "missing revision information.\n"); 170 mempool_free(pmb, phba->mbox_mem_pool); 171 return -ERESTART; 172 } 173 174 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 175 mempool_free(pmb, phba->mbox_mem_pool); 176 return -EINVAL; 177 } 178 179 /* Save information as VPD data */ 180 vp->rev.rBit = 1; 181 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 182 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 183 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 184 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 185 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 186 vp->rev.biuRev = mb->un.varRdRev.biuRev; 187 vp->rev.smRev = mb->un.varRdRev.smRev; 188 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 189 vp->rev.endecRev = mb->un.varRdRev.endecRev; 190 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 191 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 192 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 193 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 194 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 195 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 196 197 /* If the sli feature level is less then 9, we must 198 * tear down all RPIs and VPIs on link down if NPIV 199 * is enabled. 200 */ 201 if (vp->rev.feaLevelHigh < 9) 202 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 203 204 if (lpfc_is_LC_HBA(phba->pcidev->device)) 205 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 206 sizeof (phba->RandomData)); 207 208 /* Get adapter VPD information */ 209 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 210 if (!lpfc_vpd_data) 211 goto out_free_mbox; 212 213 do { 214 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 215 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 216 217 if (rc != MBX_SUCCESS) { 218 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 219 "0441 VPD not present on adapter, " 220 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 221 mb->mbxCommand, mb->mbxStatus); 222 mb->un.varDmp.word_cnt = 0; 223 } 224 /* dump mem may return a zero when finished or we got a 225 * mailbox error, either way we are done. 226 */ 227 if (mb->un.varDmp.word_cnt == 0) 228 break; 229 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 230 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 231 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 232 lpfc_vpd_data + offset, 233 mb->un.varDmp.word_cnt); 234 offset += mb->un.varDmp.word_cnt; 235 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 236 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 237 238 kfree(lpfc_vpd_data); 239out_free_mbox: 240 mempool_free(pmb, phba->mbox_mem_pool); 241 return 0; 242} 243 244/** 245 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 246 * @phba: pointer to lpfc hba data structure. 247 * @pmboxq: pointer to the driver internal queue element for mailbox command. 248 * 249 * This is the completion handler for driver's configuring asynchronous event 250 * mailbox command to the device. If the mailbox command returns successfully, 251 * it will set internal async event support flag to 1; otherwise, it will 252 * set internal async event support flag to 0. 253 **/ 254static void 255lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 256{ 257 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 258 phba->temp_sensor_support = 1; 259 else 260 phba->temp_sensor_support = 0; 261 mempool_free(pmboxq, phba->mbox_mem_pool); 262 return; 263} 264 265/** 266 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 267 * @phba: pointer to lpfc hba data structure. 268 * @pmboxq: pointer to the driver internal queue element for mailbox command. 269 * 270 * This is the completion handler for dump mailbox command for getting 271 * wake up parameters. When this command complete, the response contain 272 * Option rom version of the HBA. This function translate the version number 273 * into a human readable string and store it in OptionROMVersion. 274 **/ 275static void 276lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 277{ 278 struct prog_id *prg; 279 uint32_t prog_id_word; 280 char dist = ' '; 281 /* character array used for decoding dist type. */ 282 char dist_char[] = "nabx"; 283 284 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 285 mempool_free(pmboxq, phba->mbox_mem_pool); 286 return; 287 } 288 289 prg = (struct prog_id *) &prog_id_word; 290 291 /* word 7 contain option rom version */ 292 prog_id_word = pmboxq->u.mb.un.varWords[7]; 293 294 /* Decode the Option rom version word to a readable string */ 295 if (prg->dist < 4) 296 dist = dist_char[prg->dist]; 297 298 if ((prg->dist == 3) && (prg->num == 0)) 299 sprintf(phba->OptionROMVersion, "%d.%d%d", 300 prg->ver, prg->rev, prg->lev); 301 else 302 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 303 prg->ver, prg->rev, prg->lev, 304 dist, prg->num); 305 mempool_free(pmboxq, phba->mbox_mem_pool); 306 return; 307} 308 309/** 310 * lpfc_config_port_post - Perform lpfc initialization after config port 311 * @phba: pointer to lpfc hba data structure. 312 * 313 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 314 * command call. It performs all internal resource and state setups on the 315 * port: post IOCB buffers, enable appropriate host interrupt attentions, 316 * ELS ring timers, etc. 317 * 318 * Return codes 319 * 0 - success. 320 * Any other value - error. 321 **/ 322int 323lpfc_config_port_post(struct lpfc_hba *phba) 324{ 325 struct lpfc_vport *vport = phba->pport; 326 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 327 LPFC_MBOXQ_t *pmb; 328 MAILBOX_t *mb; 329 struct lpfc_dmabuf *mp; 330 struct lpfc_sli *psli = &phba->sli; 331 uint32_t status, timeout; 332 int i, j; 333 int rc; 334 335 spin_lock_irq(&phba->hbalock); 336 /* 337 * If the Config port completed correctly the HBA is not 338 * over heated any more. 339 */ 340 if (phba->over_temp_state == HBA_OVER_TEMP) 341 phba->over_temp_state = HBA_NORMAL_TEMP; 342 spin_unlock_irq(&phba->hbalock); 343 344 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 345 if (!pmb) { 346 phba->link_state = LPFC_HBA_ERROR; 347 return -ENOMEM; 348 } 349 mb = &pmb->u.mb; 350 351 /* Get login parameters for NID. */ 352 lpfc_read_sparam(phba, pmb, 0); 353 pmb->vport = vport; 354 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 355 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 356 "0448 Adapter failed init, mbxCmd x%x " 357 "READ_SPARM mbxStatus x%x\n", 358 mb->mbxCommand, mb->mbxStatus); 359 phba->link_state = LPFC_HBA_ERROR; 360 mp = (struct lpfc_dmabuf *) pmb->context1; 361 mempool_free( pmb, phba->mbox_mem_pool); 362 lpfc_mbuf_free(phba, mp->virt, mp->phys); 363 kfree(mp); 364 return -EIO; 365 } 366 367 mp = (struct lpfc_dmabuf *) pmb->context1; 368 369 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 370 lpfc_mbuf_free(phba, mp->virt, mp->phys); 371 kfree(mp); 372 pmb->context1 = NULL; 373 374 if (phba->cfg_soft_wwnn) 375 u64_to_wwn(phba->cfg_soft_wwnn, 376 vport->fc_sparam.nodeName.u.wwn); 377 if (phba->cfg_soft_wwpn) 378 u64_to_wwn(phba->cfg_soft_wwpn, 379 vport->fc_sparam.portName.u.wwn); 380 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 381 sizeof (struct lpfc_name)); 382 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 383 sizeof (struct lpfc_name)); 384 385 /* Update the fc_host data structures with new wwn. */ 386 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 387 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 388 fc_host_max_npiv_vports(shost) = phba->max_vpi; 389 390 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 391 /* This should be consolidated into parse_vpd ? - mr */ 392 if (phba->SerialNumber[0] == 0) { 393 uint8_t *outptr; 394 395 outptr = &vport->fc_nodename.u.s.IEEE[0]; 396 for (i = 0; i < 12; i++) { 397 status = *outptr++; 398 j = ((status & 0xf0) >> 4); 399 if (j <= 9) 400 phba->SerialNumber[i] = 401 (char)((uint8_t) 0x30 + (uint8_t) j); 402 else 403 phba->SerialNumber[i] = 404 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 405 i++; 406 j = (status & 0xf); 407 if (j <= 9) 408 phba->SerialNumber[i] = 409 (char)((uint8_t) 0x30 + (uint8_t) j); 410 else 411 phba->SerialNumber[i] = 412 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 413 } 414 } 415 416 lpfc_read_config(phba, pmb); 417 pmb->vport = vport; 418 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 420 "0453 Adapter failed to init, mbxCmd x%x " 421 "READ_CONFIG, mbxStatus x%x\n", 422 mb->mbxCommand, mb->mbxStatus); 423 phba->link_state = LPFC_HBA_ERROR; 424 mempool_free( pmb, phba->mbox_mem_pool); 425 return -EIO; 426 } 427 428 /* Check if the port is disabled */ 429 lpfc_sli_read_link_ste(phba); 430 431 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 432 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 433 phba->cfg_hba_queue_depth = 434 (mb->un.varRdConfig.max_xri + 1) - 435 lpfc_sli4_get_els_iocb_cnt(phba); 436 437 phba->lmt = mb->un.varRdConfig.lmt; 438 439 /* Get the default values for Model Name and Description */ 440 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 441 442 if ((phba->cfg_link_speed > LINK_SPEED_10G) 443 || ((phba->cfg_link_speed == LINK_SPEED_1G) 444 && !(phba->lmt & LMT_1Gb)) 445 || ((phba->cfg_link_speed == LINK_SPEED_2G) 446 && !(phba->lmt & LMT_2Gb)) 447 || ((phba->cfg_link_speed == LINK_SPEED_4G) 448 && !(phba->lmt & LMT_4Gb)) 449 || ((phba->cfg_link_speed == LINK_SPEED_8G) 450 && !(phba->lmt & LMT_8Gb)) 451 || ((phba->cfg_link_speed == LINK_SPEED_10G) 452 && !(phba->lmt & LMT_10Gb))) { 453 /* Reset link speed to auto */ 454 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT, 455 "1302 Invalid speed for this board: " 456 "Reset link speed to auto: x%x\n", 457 phba->cfg_link_speed); 458 phba->cfg_link_speed = LINK_SPEED_AUTO; 459 } 460 461 phba->link_state = LPFC_LINK_DOWN; 462 463 /* Only process IOCBs on ELS ring till hba_state is READY */ 464 if (psli->ring[psli->extra_ring].cmdringaddr) 465 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 466 if (psli->ring[psli->fcp_ring].cmdringaddr) 467 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 468 if (psli->ring[psli->next_ring].cmdringaddr) 469 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 470 471 /* Post receive buffers for desired rings */ 472 if (phba->sli_rev != 3) 473 lpfc_post_rcv_buf(phba); 474 475 /* 476 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 477 */ 478 if (phba->intr_type == MSIX) { 479 rc = lpfc_config_msi(phba, pmb); 480 if (rc) { 481 mempool_free(pmb, phba->mbox_mem_pool); 482 return -EIO; 483 } 484 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 485 if (rc != MBX_SUCCESS) { 486 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 487 "0352 Config MSI mailbox command " 488 "failed, mbxCmd x%x, mbxStatus x%x\n", 489 pmb->u.mb.mbxCommand, 490 pmb->u.mb.mbxStatus); 491 mempool_free(pmb, phba->mbox_mem_pool); 492 return -EIO; 493 } 494 } 495 496 spin_lock_irq(&phba->hbalock); 497 /* Initialize ERATT handling flag */ 498 phba->hba_flag &= ~HBA_ERATT_HANDLED; 499 500 /* Enable appropriate host interrupts */ 501 status = readl(phba->HCregaddr); 502 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 503 if (psli->num_rings > 0) 504 status |= HC_R0INT_ENA; 505 if (psli->num_rings > 1) 506 status |= HC_R1INT_ENA; 507 if (psli->num_rings > 2) 508 status |= HC_R2INT_ENA; 509 if (psli->num_rings > 3) 510 status |= HC_R3INT_ENA; 511 512 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 513 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 514 status &= ~(HC_R0INT_ENA); 515 516 writel(status, phba->HCregaddr); 517 readl(phba->HCregaddr); /* flush */ 518 spin_unlock_irq(&phba->hbalock); 519 520 /* Set up ring-0 (ELS) timer */ 521 timeout = phba->fc_ratov * 2; 522 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 523 /* Set up heart beat (HB) timer */ 524 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 525 phba->hb_outstanding = 0; 526 phba->last_completion_time = jiffies; 527 /* Set up error attention (ERATT) polling timer */ 528 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 529 530 if (phba->hba_flag & LINK_DISABLED) { 531 lpfc_printf_log(phba, 532 KERN_ERR, LOG_INIT, 533 "2598 Adapter Link is disabled.\n"); 534 lpfc_down_link(phba, pmb); 535 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 536 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 537 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 538 lpfc_printf_log(phba, 539 KERN_ERR, LOG_INIT, 540 "2599 Adapter failed to issue DOWN_LINK" 541 " mbox command rc 0x%x\n", rc); 542 543 mempool_free(pmb, phba->mbox_mem_pool); 544 return -EIO; 545 } 546 } else { 547 lpfc_init_link(phba, pmb, phba->cfg_topology, 548 phba->cfg_link_speed); 549 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 550 lpfc_set_loopback_flag(phba); 551 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 552 if (rc != MBX_SUCCESS) { 553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 554 "0454 Adapter failed to init, mbxCmd x%x " 555 "INIT_LINK, mbxStatus x%x\n", 556 mb->mbxCommand, mb->mbxStatus); 557 558 /* Clear all interrupt enable conditions */ 559 writel(0, phba->HCregaddr); 560 readl(phba->HCregaddr); /* flush */ 561 /* Clear all pending interrupts */ 562 writel(0xffffffff, phba->HAregaddr); 563 readl(phba->HAregaddr); /* flush */ 564 565 phba->link_state = LPFC_HBA_ERROR; 566 if (rc != MBX_BUSY) 567 mempool_free(pmb, phba->mbox_mem_pool); 568 return -EIO; 569 } 570 } 571 /* MBOX buffer will be freed in mbox compl */ 572 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 573 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 574 pmb->mbox_cmpl = lpfc_config_async_cmpl; 575 pmb->vport = phba->pport; 576 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 577 578 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 579 lpfc_printf_log(phba, 580 KERN_ERR, 581 LOG_INIT, 582 "0456 Adapter failed to issue " 583 "ASYNCEVT_ENABLE mbox status x%x \n.", 584 rc); 585 mempool_free(pmb, phba->mbox_mem_pool); 586 } 587 588 /* Get Option rom version */ 589 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 590 lpfc_dump_wakeup_param(phba, pmb); 591 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 592 pmb->vport = phba->pport; 593 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 594 595 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 596 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 597 "to get Option ROM version status x%x\n.", rc); 598 mempool_free(pmb, phba->mbox_mem_pool); 599 } 600 601 return 0; 602} 603 604/** 605 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 606 * @phba: pointer to lpfc HBA data structure. 607 * 608 * This routine will do LPFC uninitialization before the HBA is reset when 609 * bringing down the SLI Layer. 610 * 611 * Return codes 612 * 0 - success. 613 * Any other value - error. 614 **/ 615int 616lpfc_hba_down_prep(struct lpfc_hba *phba) 617{ 618 struct lpfc_vport **vports; 619 int i; 620 621 if (phba->sli_rev <= LPFC_SLI_REV3) { 622 /* Disable interrupts */ 623 writel(0, phba->HCregaddr); 624 readl(phba->HCregaddr); /* flush */ 625 } 626 627 if (phba->pport->load_flag & FC_UNLOADING) 628 lpfc_cleanup_discovery_resources(phba->pport); 629 else { 630 vports = lpfc_create_vport_work_array(phba); 631 if (vports != NULL) 632 for (i = 0; i <= phba->max_vports && 633 vports[i] != NULL; i++) 634 lpfc_cleanup_discovery_resources(vports[i]); 635 lpfc_destroy_vport_work_array(phba, vports); 636 } 637 return 0; 638} 639 640/** 641 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 642 * @phba: pointer to lpfc HBA data structure. 643 * 644 * This routine will do uninitialization after the HBA is reset when bring 645 * down the SLI Layer. 646 * 647 * Return codes 648 * 0 - sucess. 649 * Any other value - error. 650 **/ 651static int 652lpfc_hba_down_post_s3(struct lpfc_hba *phba) 653{ 654 struct lpfc_sli *psli = &phba->sli; 655 struct lpfc_sli_ring *pring; 656 struct lpfc_dmabuf *mp, *next_mp; 657 LIST_HEAD(completions); 658 int i; 659 660 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 661 lpfc_sli_hbqbuf_free_all(phba); 662 else { 663 /* Cleanup preposted buffers on the ELS ring */ 664 pring = &psli->ring[LPFC_ELS_RING]; 665 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 666 list_del(&mp->list); 667 pring->postbufq_cnt--; 668 lpfc_mbuf_free(phba, mp->virt, mp->phys); 669 kfree(mp); 670 } 671 } 672 673 spin_lock_irq(&phba->hbalock); 674 for (i = 0; i < psli->num_rings; i++) { 675 pring = &psli->ring[i]; 676 677 /* At this point in time the HBA is either reset or DOA. Either 678 * way, nothing should be on txcmplq as it will NEVER complete. 679 */ 680 list_splice_init(&pring->txcmplq, &completions); 681 pring->txcmplq_cnt = 0; 682 spin_unlock_irq(&phba->hbalock); 683 684 /* Cancel all the IOCBs from the completions list */ 685 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 686 IOERR_SLI_ABORTED); 687 688 lpfc_sli_abort_iocb_ring(phba, pring); 689 spin_lock_irq(&phba->hbalock); 690 } 691 spin_unlock_irq(&phba->hbalock); 692 693 return 0; 694} 695/** 696 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 697 * @phba: pointer to lpfc HBA data structure. 698 * 699 * This routine will do uninitialization after the HBA is reset when bring 700 * down the SLI Layer. 701 * 702 * Return codes 703 * 0 - sucess. 704 * Any other value - error. 705 **/ 706static int 707lpfc_hba_down_post_s4(struct lpfc_hba *phba) 708{ 709 struct lpfc_scsi_buf *psb, *psb_next; 710 LIST_HEAD(aborts); 711 int ret; 712 unsigned long iflag = 0; 713 ret = lpfc_hba_down_post_s3(phba); 714 if (ret) 715 return ret; 716 /* At this point in time the HBA is either reset or DOA. Either 717 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 718 * on the lpfc_sgl_list so that it can either be freed if the 719 * driver is unloading or reposted if the driver is restarting 720 * the port. 721 */ 722 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 723 /* scsl_buf_list */ 724 /* abts_sgl_list_lock required because worker thread uses this 725 * list. 726 */ 727 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 728 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 729 &phba->sli4_hba.lpfc_sgl_list); 730 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 731 /* abts_scsi_buf_list_lock required because worker thread uses this 732 * list. 733 */ 734 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 735 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 736 &aborts); 737 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 738 spin_unlock_irq(&phba->hbalock); 739 740 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 741 psb->pCmd = NULL; 742 psb->status = IOSTAT_SUCCESS; 743 } 744 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 745 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 746 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 747 return 0; 748} 749 750/** 751 * lpfc_hba_down_post - Wrapper func for hba down post routine 752 * @phba: pointer to lpfc HBA data structure. 753 * 754 * This routine wraps the actual SLI3 or SLI4 routine for performing 755 * uninitialization after the HBA is reset when bring down the SLI Layer. 756 * 757 * Return codes 758 * 0 - sucess. 759 * Any other value - error. 760 **/ 761int 762lpfc_hba_down_post(struct lpfc_hba *phba) 763{ 764 return (*phba->lpfc_hba_down_post)(phba); 765} 766 767/** 768 * lpfc_hb_timeout - The HBA-timer timeout handler 769 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 770 * 771 * This is the HBA-timer timeout handler registered to the lpfc driver. When 772 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 773 * work-port-events bitmap and the worker thread is notified. This timeout 774 * event will be used by the worker thread to invoke the actual timeout 775 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 776 * be performed in the timeout handler and the HBA timeout event bit shall 777 * be cleared by the worker thread after it has taken the event bitmap out. 778 **/ 779static void 780lpfc_hb_timeout(unsigned long ptr) 781{ 782 struct lpfc_hba *phba; 783 uint32_t tmo_posted; 784 unsigned long iflag; 785 786 phba = (struct lpfc_hba *)ptr; 787 788 /* Check for heart beat timeout conditions */ 789 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 790 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 791 if (!tmo_posted) 792 phba->pport->work_port_events |= WORKER_HB_TMO; 793 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 794 795 /* Tell the worker thread there is work to do */ 796 if (!tmo_posted) 797 lpfc_worker_wake_up(phba); 798 return; 799} 800 801/** 802 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 803 * @phba: pointer to lpfc hba data structure. 804 * @pmboxq: pointer to the driver internal queue element for mailbox command. 805 * 806 * This is the callback function to the lpfc heart-beat mailbox command. 807 * If configured, the lpfc driver issues the heart-beat mailbox command to 808 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 809 * heart-beat mailbox command is issued, the driver shall set up heart-beat 810 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 811 * heart-beat outstanding state. Once the mailbox command comes back and 812 * no error conditions detected, the heart-beat mailbox command timer is 813 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 814 * state is cleared for the next heart-beat. If the timer expired with the 815 * heart-beat outstanding state set, the driver will put the HBA offline. 816 **/ 817static void 818lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 819{ 820 unsigned long drvr_flag; 821 822 spin_lock_irqsave(&phba->hbalock, drvr_flag); 823 phba->hb_outstanding = 0; 824 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 825 826 /* Check and reset heart-beat timer is necessary */ 827 mempool_free(pmboxq, phba->mbox_mem_pool); 828 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 829 !(phba->link_state == LPFC_HBA_ERROR) && 830 !(phba->pport->load_flag & FC_UNLOADING)) 831 mod_timer(&phba->hb_tmofunc, 832 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 833 return; 834} 835 836/** 837 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 838 * @phba: pointer to lpfc hba data structure. 839 * 840 * This is the actual HBA-timer timeout handler to be invoked by the worker 841 * thread whenever the HBA timer fired and HBA-timeout event posted. This 842 * handler performs any periodic operations needed for the device. If such 843 * periodic event has already been attended to either in the interrupt handler 844 * or by processing slow-ring or fast-ring events within the HBA-timer 845 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 846 * the timer for the next timeout period. If lpfc heart-beat mailbox command 847 * is configured and there is no heart-beat mailbox command outstanding, a 848 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 849 * has been a heart-beat mailbox command outstanding, the HBA shall be put 850 * to offline. 851 **/ 852void 853lpfc_hb_timeout_handler(struct lpfc_hba *phba) 854{ 855 LPFC_MBOXQ_t *pmboxq; 856 struct lpfc_dmabuf *buf_ptr; 857 int retval; 858 struct lpfc_sli *psli = &phba->sli; 859 LIST_HEAD(completions); 860 861 if ((phba->link_state == LPFC_HBA_ERROR) || 862 (phba->pport->load_flag & FC_UNLOADING) || 863 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 864 return; 865 866 spin_lock_irq(&phba->pport->work_port_lock); 867 868 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 869 jiffies)) { 870 spin_unlock_irq(&phba->pport->work_port_lock); 871 if (!phba->hb_outstanding) 872 mod_timer(&phba->hb_tmofunc, 873 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 874 else 875 mod_timer(&phba->hb_tmofunc, 876 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 877 return; 878 } 879 spin_unlock_irq(&phba->pport->work_port_lock); 880 881 if (phba->elsbuf_cnt && 882 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 883 spin_lock_irq(&phba->hbalock); 884 list_splice_init(&phba->elsbuf, &completions); 885 phba->elsbuf_cnt = 0; 886 phba->elsbuf_prev_cnt = 0; 887 spin_unlock_irq(&phba->hbalock); 888 889 while (!list_empty(&completions)) { 890 list_remove_head(&completions, buf_ptr, 891 struct lpfc_dmabuf, list); 892 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 893 kfree(buf_ptr); 894 } 895 } 896 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 897 898 /* If there is no heart beat outstanding, issue a heartbeat command */ 899 if (phba->cfg_enable_hba_heartbeat) { 900 if (!phba->hb_outstanding) { 901 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 902 if (!pmboxq) { 903 mod_timer(&phba->hb_tmofunc, 904 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 905 return; 906 } 907 908 lpfc_heart_beat(phba, pmboxq); 909 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 910 pmboxq->vport = phba->pport; 911 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); 912 913 if (retval != MBX_BUSY && retval != MBX_SUCCESS) { 914 mempool_free(pmboxq, phba->mbox_mem_pool); 915 mod_timer(&phba->hb_tmofunc, 916 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 917 return; 918 } 919 mod_timer(&phba->hb_tmofunc, 920 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 921 phba->hb_outstanding = 1; 922 return; 923 } else { 924 /* 925 * If heart beat timeout called with hb_outstanding set 926 * we need to take the HBA offline. 927 */ 928 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 929 "0459 Adapter heartbeat failure, " 930 "taking this port offline.\n"); 931 932 spin_lock_irq(&phba->hbalock); 933 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 934 spin_unlock_irq(&phba->hbalock); 935 936 lpfc_offline_prep(phba); 937 lpfc_offline(phba); 938 lpfc_unblock_mgmt_io(phba); 939 phba->link_state = LPFC_HBA_ERROR; 940 lpfc_hba_down_post(phba); 941 } 942 } 943} 944 945/** 946 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 947 * @phba: pointer to lpfc hba data structure. 948 * 949 * This routine is called to bring the HBA offline when HBA hardware error 950 * other than Port Error 6 has been detected. 951 **/ 952static void 953lpfc_offline_eratt(struct lpfc_hba *phba) 954{ 955 struct lpfc_sli *psli = &phba->sli; 956 957 spin_lock_irq(&phba->hbalock); 958 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 959 spin_unlock_irq(&phba->hbalock); 960 lpfc_offline_prep(phba); 961 962 lpfc_offline(phba); 963 lpfc_reset_barrier(phba); 964 spin_lock_irq(&phba->hbalock); 965 lpfc_sli_brdreset(phba); 966 spin_unlock_irq(&phba->hbalock); 967 lpfc_hba_down_post(phba); 968 lpfc_sli_brdready(phba, HS_MBRDY); 969 lpfc_unblock_mgmt_io(phba); 970 phba->link_state = LPFC_HBA_ERROR; 971 return; 972} 973 974/** 975 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 976 * @phba: pointer to lpfc hba data structure. 977 * 978 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 979 * other than Port Error 6 has been detected. 980 **/ 981static void 982lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 983{ 984 lpfc_offline_prep(phba); 985 lpfc_offline(phba); 986 lpfc_sli4_brdreset(phba); 987 lpfc_hba_down_post(phba); 988 lpfc_sli4_post_status_check(phba); 989 lpfc_unblock_mgmt_io(phba); 990 phba->link_state = LPFC_HBA_ERROR; 991} 992 993/** 994 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 995 * @phba: pointer to lpfc hba data structure. 996 * 997 * This routine is invoked to handle the deferred HBA hardware error 998 * conditions. This type of error is indicated by HBA by setting ER1 999 * and another ER bit in the host status register. The driver will 1000 * wait until the ER1 bit clears before handling the error condition. 1001 **/ 1002static void 1003lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1004{ 1005 uint32_t old_host_status = phba->work_hs; 1006 struct lpfc_sli_ring *pring; 1007 struct lpfc_sli *psli = &phba->sli; 1008 1009 /* If the pci channel is offline, ignore possible errors, 1010 * since we cannot communicate with the pci card anyway. 1011 */ 1012 if (pci_channel_offline(phba->pcidev)) { 1013 spin_lock_irq(&phba->hbalock); 1014 phba->hba_flag &= ~DEFER_ERATT; 1015 spin_unlock_irq(&phba->hbalock); 1016 return; 1017 } 1018 1019 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1020 "0479 Deferred Adapter Hardware Error " 1021 "Data: x%x x%x x%x\n", 1022 phba->work_hs, 1023 phba->work_status[0], phba->work_status[1]); 1024 1025 spin_lock_irq(&phba->hbalock); 1026 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1027 spin_unlock_irq(&phba->hbalock); 1028 1029 1030 /* 1031 * Firmware stops when it triggred erratt. That could cause the I/Os 1032 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1033 * SCSI layer retry it after re-establishing link. 1034 */ 1035 pring = &psli->ring[psli->fcp_ring]; 1036 lpfc_sli_abort_iocb_ring(phba, pring); 1037 1038 /* 1039 * There was a firmware error. Take the hba offline and then 1040 * attempt to restart it. 1041 */ 1042 lpfc_offline_prep(phba); 1043 lpfc_offline(phba); 1044 1045 /* Wait for the ER1 bit to clear.*/ 1046 while (phba->work_hs & HS_FFER1) { 1047 msleep(100); 1048 phba->work_hs = readl(phba->HSregaddr); 1049 /* If driver is unloading let the worker thread continue */ 1050 if (phba->pport->load_flag & FC_UNLOADING) { 1051 phba->work_hs = 0; 1052 break; 1053 } 1054 } 1055 1056 /* 1057 * This is to ptrotect against a race condition in which 1058 * first write to the host attention register clear the 1059 * host status register. 1060 */ 1061 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1062 phba->work_hs = old_host_status & ~HS_FFER1; 1063 1064 spin_lock_irq(&phba->hbalock); 1065 phba->hba_flag &= ~DEFER_ERATT; 1066 spin_unlock_irq(&phba->hbalock); 1067 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1068 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1069} 1070 1071static void 1072lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1073{ 1074 struct lpfc_board_event_header board_event; 1075 struct Scsi_Host *shost; 1076 1077 board_event.event_type = FC_REG_BOARD_EVENT; 1078 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1079 shost = lpfc_shost_from_vport(phba->pport); 1080 fc_host_post_vendor_event(shost, fc_get_event_number(), 1081 sizeof(board_event), 1082 (char *) &board_event, 1083 LPFC_NL_VENDOR_ID); 1084} 1085 1086/** 1087 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1088 * @phba: pointer to lpfc hba data structure. 1089 * 1090 * This routine is invoked to handle the following HBA hardware error 1091 * conditions: 1092 * 1 - HBA error attention interrupt 1093 * 2 - DMA ring index out of range 1094 * 3 - Mailbox command came back as unknown 1095 **/ 1096static void 1097lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1098{ 1099 struct lpfc_vport *vport = phba->pport; 1100 struct lpfc_sli *psli = &phba->sli; 1101 struct lpfc_sli_ring *pring; 1102 uint32_t event_data; 1103 unsigned long temperature; 1104 struct temp_event temp_event_data; 1105 struct Scsi_Host *shost; 1106 1107 /* If the pci channel is offline, ignore possible errors, 1108 * since we cannot communicate with the pci card anyway. 1109 */ 1110 if (pci_channel_offline(phba->pcidev)) { 1111 spin_lock_irq(&phba->hbalock); 1112 phba->hba_flag &= ~DEFER_ERATT; 1113 spin_unlock_irq(&phba->hbalock); 1114 return; 1115 } 1116 1117 /* If resets are disabled then leave the HBA alone and return */ 1118 if (!phba->cfg_enable_hba_reset) 1119 return; 1120 1121 /* Send an internal error event to mgmt application */ 1122 lpfc_board_errevt_to_mgmt(phba); 1123 1124 if (phba->hba_flag & DEFER_ERATT) 1125 lpfc_handle_deferred_eratt(phba); 1126 1127 if (phba->work_hs & HS_FFER6) { 1128 /* Re-establishing Link */ 1129 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1130 "1301 Re-establishing Link " 1131 "Data: x%x x%x x%x\n", 1132 phba->work_hs, 1133 phba->work_status[0], phba->work_status[1]); 1134 1135 spin_lock_irq(&phba->hbalock); 1136 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1137 spin_unlock_irq(&phba->hbalock); 1138 1139 /* 1140 * Firmware stops when it triggled erratt with HS_FFER6. 1141 * That could cause the I/Os dropped by the firmware. 1142 * Error iocb (I/O) on txcmplq and let the SCSI layer 1143 * retry it after re-establishing link. 1144 */ 1145 pring = &psli->ring[psli->fcp_ring]; 1146 lpfc_sli_abort_iocb_ring(phba, pring); 1147 1148 /* 1149 * There was a firmware error. Take the hba offline and then 1150 * attempt to restart it. 1151 */ 1152 lpfc_offline_prep(phba); 1153 lpfc_offline(phba); 1154 lpfc_sli_brdrestart(phba); 1155 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1156 lpfc_unblock_mgmt_io(phba); 1157 return; 1158 } 1159 lpfc_unblock_mgmt_io(phba); 1160 } else if (phba->work_hs & HS_CRIT_TEMP) { 1161 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1162 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1163 temp_event_data.event_code = LPFC_CRIT_TEMP; 1164 temp_event_data.data = (uint32_t)temperature; 1165 1166 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1167 "0406 Adapter maximum temperature exceeded " 1168 "(%ld), taking this port offline " 1169 "Data: x%x x%x x%x\n", 1170 temperature, phba->work_hs, 1171 phba->work_status[0], phba->work_status[1]); 1172 1173 shost = lpfc_shost_from_vport(phba->pport); 1174 fc_host_post_vendor_event(shost, fc_get_event_number(), 1175 sizeof(temp_event_data), 1176 (char *) &temp_event_data, 1177 SCSI_NL_VID_TYPE_PCI 1178 | PCI_VENDOR_ID_EMULEX); 1179 1180 spin_lock_irq(&phba->hbalock); 1181 phba->over_temp_state = HBA_OVER_TEMP; 1182 spin_unlock_irq(&phba->hbalock); 1183 lpfc_offline_eratt(phba); 1184 1185 } else { 1186 /* The if clause above forces this code path when the status 1187 * failure is a value other than FFER6. Do not call the offline 1188 * twice. This is the adapter hardware error path. 1189 */ 1190 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1191 "0457 Adapter Hardware Error " 1192 "Data: x%x x%x x%x\n", 1193 phba->work_hs, 1194 phba->work_status[0], phba->work_status[1]); 1195 1196 event_data = FC_REG_DUMP_EVENT; 1197 shost = lpfc_shost_from_vport(vport); 1198 fc_host_post_vendor_event(shost, fc_get_event_number(), 1199 sizeof(event_data), (char *) &event_data, 1200 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1201 1202 lpfc_offline_eratt(phba); 1203 } 1204 return; 1205} 1206 1207/** 1208 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1209 * @phba: pointer to lpfc hba data structure. 1210 * 1211 * This routine is invoked to handle the SLI4 HBA hardware error attention 1212 * conditions. 1213 **/ 1214static void 1215lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1216{ 1217 struct lpfc_vport *vport = phba->pport; 1218 uint32_t event_data; 1219 struct Scsi_Host *shost; 1220 1221 /* If the pci channel is offline, ignore possible errors, since 1222 * we cannot communicate with the pci card anyway. 1223 */ 1224 if (pci_channel_offline(phba->pcidev)) 1225 return; 1226 /* If resets are disabled then leave the HBA alone and return */ 1227 if (!phba->cfg_enable_hba_reset) 1228 return; 1229 1230 /* Send an internal error event to mgmt application */ 1231 lpfc_board_errevt_to_mgmt(phba); 1232 1233 /* For now, the actual action for SLI4 device handling is not 1234 * specified yet, just treated it as adaptor hardware failure 1235 */ 1236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1237 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n", 1238 phba->work_status[0], phba->work_status[1]); 1239 1240 event_data = FC_REG_DUMP_EVENT; 1241 shost = lpfc_shost_from_vport(vport); 1242 fc_host_post_vendor_event(shost, fc_get_event_number(), 1243 sizeof(event_data), (char *) &event_data, 1244 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1245 1246 lpfc_sli4_offline_eratt(phba); 1247} 1248 1249/** 1250 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1251 * @phba: pointer to lpfc HBA data structure. 1252 * 1253 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1254 * routine from the API jump table function pointer from the lpfc_hba struct. 1255 * 1256 * Return codes 1257 * 0 - sucess. 1258 * Any other value - error. 1259 **/ 1260void 1261lpfc_handle_eratt(struct lpfc_hba *phba) 1262{ 1263 (*phba->lpfc_handle_eratt)(phba); 1264} 1265 1266/** 1267 * lpfc_handle_latt - The HBA link event handler 1268 * @phba: pointer to lpfc hba data structure. 1269 * 1270 * This routine is invoked from the worker thread to handle a HBA host 1271 * attention link event. 1272 **/ 1273void 1274lpfc_handle_latt(struct lpfc_hba *phba) 1275{ 1276 struct lpfc_vport *vport = phba->pport; 1277 struct lpfc_sli *psli = &phba->sli; 1278 LPFC_MBOXQ_t *pmb; 1279 volatile uint32_t control; 1280 struct lpfc_dmabuf *mp; 1281 int rc = 0; 1282 1283 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1284 if (!pmb) { 1285 rc = 1; 1286 goto lpfc_handle_latt_err_exit; 1287 } 1288 1289 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1290 if (!mp) { 1291 rc = 2; 1292 goto lpfc_handle_latt_free_pmb; 1293 } 1294 1295 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1296 if (!mp->virt) { 1297 rc = 3; 1298 goto lpfc_handle_latt_free_mp; 1299 } 1300 1301 /* Cleanup any outstanding ELS commands */ 1302 lpfc_els_flush_all_cmd(phba); 1303 1304 psli->slistat.link_event++; 1305 lpfc_read_la(phba, pmb, mp); 1306 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 1307 pmb->vport = vport; 1308 /* Block ELS IOCBs until we have processed this mbox command */ 1309 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1310 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1311 if (rc == MBX_NOT_FINISHED) { 1312 rc = 4; 1313 goto lpfc_handle_latt_free_mbuf; 1314 } 1315 1316 /* Clear Link Attention in HA REG */ 1317 spin_lock_irq(&phba->hbalock); 1318 writel(HA_LATT, phba->HAregaddr); 1319 readl(phba->HAregaddr); /* flush */ 1320 spin_unlock_irq(&phba->hbalock); 1321 1322 return; 1323 1324lpfc_handle_latt_free_mbuf: 1325 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1326 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1327lpfc_handle_latt_free_mp: 1328 kfree(mp); 1329lpfc_handle_latt_free_pmb: 1330 mempool_free(pmb, phba->mbox_mem_pool); 1331lpfc_handle_latt_err_exit: 1332 /* Enable Link attention interrupts */ 1333 spin_lock_irq(&phba->hbalock); 1334 psli->sli_flag |= LPFC_PROCESS_LA; 1335 control = readl(phba->HCregaddr); 1336 control |= HC_LAINT_ENA; 1337 writel(control, phba->HCregaddr); 1338 readl(phba->HCregaddr); /* flush */ 1339 1340 /* Clear Link Attention in HA REG */ 1341 writel(HA_LATT, phba->HAregaddr); 1342 readl(phba->HAregaddr); /* flush */ 1343 spin_unlock_irq(&phba->hbalock); 1344 lpfc_linkdown(phba); 1345 phba->link_state = LPFC_HBA_ERROR; 1346 1347 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1348 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1349 1350 return; 1351} 1352 1353/** 1354 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1355 * @phba: pointer to lpfc hba data structure. 1356 * @vpd: pointer to the vital product data. 1357 * @len: length of the vital product data in bytes. 1358 * 1359 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1360 * an array of characters. In this routine, the ModelName, ProgramType, and 1361 * ModelDesc, etc. fields of the phba data structure will be populated. 1362 * 1363 * Return codes 1364 * 0 - pointer to the VPD passed in is NULL 1365 * 1 - success 1366 **/ 1367int 1368lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1369{ 1370 uint8_t lenlo, lenhi; 1371 int Length; 1372 int i, j; 1373 int finished = 0; 1374 int index = 0; 1375 1376 if (!vpd) 1377 return 0; 1378 1379 /* Vital Product */ 1380 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1381 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1382 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1383 (uint32_t) vpd[3]); 1384 while (!finished && (index < (len - 4))) { 1385 switch (vpd[index]) { 1386 case 0x82: 1387 case 0x91: 1388 index += 1; 1389 lenlo = vpd[index]; 1390 index += 1; 1391 lenhi = vpd[index]; 1392 index += 1; 1393 i = ((((unsigned short)lenhi) << 8) + lenlo); 1394 index += i; 1395 break; 1396 case 0x90: 1397 index += 1; 1398 lenlo = vpd[index]; 1399 index += 1; 1400 lenhi = vpd[index]; 1401 index += 1; 1402 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1403 if (Length > len - index) 1404 Length = len - index; 1405 while (Length > 0) { 1406 /* Look for Serial Number */ 1407 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1408 index += 2; 1409 i = vpd[index]; 1410 index += 1; 1411 j = 0; 1412 Length -= (3+i); 1413 while(i--) { 1414 phba->SerialNumber[j++] = vpd[index++]; 1415 if (j == 31) 1416 break; 1417 } 1418 phba->SerialNumber[j] = 0; 1419 continue; 1420 } 1421 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1422 phba->vpd_flag |= VPD_MODEL_DESC; 1423 index += 2; 1424 i = vpd[index]; 1425 index += 1; 1426 j = 0; 1427 Length -= (3+i); 1428 while(i--) { 1429 phba->ModelDesc[j++] = vpd[index++]; 1430 if (j == 255) 1431 break; 1432 } 1433 phba->ModelDesc[j] = 0; 1434 continue; 1435 } 1436 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1437 phba->vpd_flag |= VPD_MODEL_NAME; 1438 index += 2; 1439 i = vpd[index]; 1440 index += 1; 1441 j = 0; 1442 Length -= (3+i); 1443 while(i--) { 1444 phba->ModelName[j++] = vpd[index++]; 1445 if (j == 79) 1446 break; 1447 } 1448 phba->ModelName[j] = 0; 1449 continue; 1450 } 1451 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1452 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1453 index += 2; 1454 i = vpd[index]; 1455 index += 1; 1456 j = 0; 1457 Length -= (3+i); 1458 while(i--) { 1459 phba->ProgramType[j++] = vpd[index++]; 1460 if (j == 255) 1461 break; 1462 } 1463 phba->ProgramType[j] = 0; 1464 continue; 1465 } 1466 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1467 phba->vpd_flag |= VPD_PORT; 1468 index += 2; 1469 i = vpd[index]; 1470 index += 1; 1471 j = 0; 1472 Length -= (3+i); 1473 while(i--) { 1474 phba->Port[j++] = vpd[index++]; 1475 if (j == 19) 1476 break; 1477 } 1478 phba->Port[j] = 0; 1479 continue; 1480 } 1481 else { 1482 index += 2; 1483 i = vpd[index]; 1484 index += 1; 1485 index += i; 1486 Length -= (3 + i); 1487 } 1488 } 1489 finished = 0; 1490 break; 1491 case 0x78: 1492 finished = 1; 1493 break; 1494 default: 1495 index ++; 1496 break; 1497 } 1498 } 1499 1500 return(1); 1501} 1502 1503/** 1504 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1505 * @phba: pointer to lpfc hba data structure. 1506 * @mdp: pointer to the data structure to hold the derived model name. 1507 * @descp: pointer to the data structure to hold the derived description. 1508 * 1509 * This routine retrieves HBA's description based on its registered PCI device 1510 * ID. The @descp passed into this function points to an array of 256 chars. It 1511 * shall be returned with the model name, maximum speed, and the host bus type. 1512 * The @mdp passed into this function points to an array of 80 chars. When the 1513 * function returns, the @mdp will be filled with the model name. 1514 **/ 1515static void 1516lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1517{ 1518 lpfc_vpd_t *vp; 1519 uint16_t dev_id = phba->pcidev->device; 1520 int max_speed; 1521 int GE = 0; 1522 int oneConnect = 0; /* default is not a oneConnect */ 1523 struct { 1524 char * name; 1525 int max_speed; 1526 char * bus; 1527 } m = {"<Unknown>", 0, ""}; 1528 1529 if (mdp && mdp[0] != '\0' 1530 && descp && descp[0] != '\0') 1531 return; 1532 1533 if (phba->lmt & LMT_10Gb) 1534 max_speed = 10; 1535 else if (phba->lmt & LMT_8Gb) 1536 max_speed = 8; 1537 else if (phba->lmt & LMT_4Gb) 1538 max_speed = 4; 1539 else if (phba->lmt & LMT_2Gb) 1540 max_speed = 2; 1541 else 1542 max_speed = 1; 1543 1544 vp = &phba->vpd; 1545 1546 switch (dev_id) { 1547 case PCI_DEVICE_ID_FIREFLY: 1548 m = (typeof(m)){"LP6000", max_speed, "PCI"}; 1549 break; 1550 case PCI_DEVICE_ID_SUPERFLY: 1551 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1552 m = (typeof(m)){"LP7000", max_speed, "PCI"}; 1553 else 1554 m = (typeof(m)){"LP7000E", max_speed, "PCI"}; 1555 break; 1556 case PCI_DEVICE_ID_DRAGONFLY: 1557 m = (typeof(m)){"LP8000", max_speed, "PCI"}; 1558 break; 1559 case PCI_DEVICE_ID_CENTAUR: 1560 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1561 m = (typeof(m)){"LP9002", max_speed, "PCI"}; 1562 else 1563 m = (typeof(m)){"LP9000", max_speed, "PCI"}; 1564 break; 1565 case PCI_DEVICE_ID_RFLY: 1566 m = (typeof(m)){"LP952", max_speed, "PCI"}; 1567 break; 1568 case PCI_DEVICE_ID_PEGASUS: 1569 m = (typeof(m)){"LP9802", max_speed, "PCI-X"}; 1570 break; 1571 case PCI_DEVICE_ID_THOR: 1572 m = (typeof(m)){"LP10000", max_speed, "PCI-X"}; 1573 break; 1574 case PCI_DEVICE_ID_VIPER: 1575 m = (typeof(m)){"LPX1000", max_speed, "PCI-X"}; 1576 break; 1577 case PCI_DEVICE_ID_PFLY: 1578 m = (typeof(m)){"LP982", max_speed, "PCI-X"}; 1579 break; 1580 case PCI_DEVICE_ID_TFLY: 1581 m = (typeof(m)){"LP1050", max_speed, "PCI-X"}; 1582 break; 1583 case PCI_DEVICE_ID_HELIOS: 1584 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"}; 1585 break; 1586 case PCI_DEVICE_ID_HELIOS_SCSP: 1587 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"}; 1588 break; 1589 case PCI_DEVICE_ID_HELIOS_DCSP: 1590 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"}; 1591 break; 1592 case PCI_DEVICE_ID_NEPTUNE: 1593 m = (typeof(m)){"LPe1000", max_speed, "PCIe"}; 1594 break; 1595 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1596 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"}; 1597 break; 1598 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1599 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"}; 1600 break; 1601 case PCI_DEVICE_ID_BMID: 1602 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"}; 1603 break; 1604 case PCI_DEVICE_ID_BSMB: 1605 m = (typeof(m)){"LP111", max_speed, "PCI-X2"}; 1606 break; 1607 case PCI_DEVICE_ID_ZEPHYR: 1608 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1609 break; 1610 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1611 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1612 break; 1613 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1614 m = (typeof(m)){"LP2105", max_speed, "PCIe"}; 1615 GE = 1; 1616 break; 1617 case PCI_DEVICE_ID_ZMID: 1618 m = (typeof(m)){"LPe1150", max_speed, "PCIe"}; 1619 break; 1620 case PCI_DEVICE_ID_ZSMB: 1621 m = (typeof(m)){"LPe111", max_speed, "PCIe"}; 1622 break; 1623 case PCI_DEVICE_ID_LP101: 1624 m = (typeof(m)){"LP101", max_speed, "PCI-X"}; 1625 break; 1626 case PCI_DEVICE_ID_LP10000S: 1627 m = (typeof(m)){"LP10000-S", max_speed, "PCI"}; 1628 break; 1629 case PCI_DEVICE_ID_LP11000S: 1630 m = (typeof(m)){"LP11000-S", max_speed, 1631 "PCI-X2"}; 1632 break; 1633 case PCI_DEVICE_ID_LPE11000S: 1634 m = (typeof(m)){"LPe11000-S", max_speed, 1635 "PCIe"}; 1636 break; 1637 case PCI_DEVICE_ID_SAT: 1638 m = (typeof(m)){"LPe12000", max_speed, "PCIe"}; 1639 break; 1640 case PCI_DEVICE_ID_SAT_MID: 1641 m = (typeof(m)){"LPe1250", max_speed, "PCIe"}; 1642 break; 1643 case PCI_DEVICE_ID_SAT_SMB: 1644 m = (typeof(m)){"LPe121", max_speed, "PCIe"}; 1645 break; 1646 case PCI_DEVICE_ID_SAT_DCSP: 1647 m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"}; 1648 break; 1649 case PCI_DEVICE_ID_SAT_SCSP: 1650 m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"}; 1651 break; 1652 case PCI_DEVICE_ID_SAT_S: 1653 m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"}; 1654 break; 1655 case PCI_DEVICE_ID_HORNET: 1656 m = (typeof(m)){"LP21000", max_speed, "PCIe"}; 1657 GE = 1; 1658 break; 1659 case PCI_DEVICE_ID_PROTEUS_VF: 1660 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"}; 1661 break; 1662 case PCI_DEVICE_ID_PROTEUS_PF: 1663 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"}; 1664 break; 1665 case PCI_DEVICE_ID_PROTEUS_S: 1666 m = (typeof(m)) {"LPemv12002-S", max_speed, "PCIe IOV"}; 1667 break; 1668 case PCI_DEVICE_ID_TIGERSHARK: 1669 oneConnect = 1; 1670 m = (typeof(m)) {"OCe10100-F", max_speed, "PCIe"}; 1671 break; 1672 default: 1673 m = (typeof(m)){ NULL }; 1674 break; 1675 } 1676 1677 if (mdp && mdp[0] == '\0') 1678 snprintf(mdp, 79,"%s", m.name); 1679 /* oneConnect hba requires special processing, they are all initiators 1680 * and we put the port number on the end 1681 */ 1682 if (descp && descp[0] == '\0') { 1683 if (oneConnect) 1684 snprintf(descp, 255, 1685 "Emulex OneConnect %s, FCoE Initiator, Port %s", 1686 m.name, 1687 phba->Port); 1688 else 1689 snprintf(descp, 255, 1690 "Emulex %s %d%s %s %s", 1691 m.name, m.max_speed, 1692 (GE) ? "GE" : "Gb", 1693 m.bus, 1694 (GE) ? "FCoE Adapter" : 1695 "Fibre Channel Adapter"); 1696 } 1697} 1698 1699/** 1700 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 1701 * @phba: pointer to lpfc hba data structure. 1702 * @pring: pointer to a IOCB ring. 1703 * @cnt: the number of IOCBs to be posted to the IOCB ring. 1704 * 1705 * This routine posts a given number of IOCBs with the associated DMA buffer 1706 * descriptors specified by the cnt argument to the given IOCB ring. 1707 * 1708 * Return codes 1709 * The number of IOCBs NOT able to be posted to the IOCB ring. 1710 **/ 1711int 1712lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 1713{ 1714 IOCB_t *icmd; 1715 struct lpfc_iocbq *iocb; 1716 struct lpfc_dmabuf *mp1, *mp2; 1717 1718 cnt += pring->missbufcnt; 1719 1720 /* While there are buffers to post */ 1721 while (cnt > 0) { 1722 /* Allocate buffer for command iocb */ 1723 iocb = lpfc_sli_get_iocbq(phba); 1724 if (iocb == NULL) { 1725 pring->missbufcnt = cnt; 1726 return cnt; 1727 } 1728 icmd = &iocb->iocb; 1729 1730 /* 2 buffers can be posted per command */ 1731 /* Allocate buffer to post */ 1732 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1733 if (mp1) 1734 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 1735 if (!mp1 || !mp1->virt) { 1736 kfree(mp1); 1737 lpfc_sli_release_iocbq(phba, iocb); 1738 pring->missbufcnt = cnt; 1739 return cnt; 1740 } 1741 1742 INIT_LIST_HEAD(&mp1->list); 1743 /* Allocate buffer to post */ 1744 if (cnt > 1) { 1745 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1746 if (mp2) 1747 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1748 &mp2->phys); 1749 if (!mp2 || !mp2->virt) { 1750 kfree(mp2); 1751 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1752 kfree(mp1); 1753 lpfc_sli_release_iocbq(phba, iocb); 1754 pring->missbufcnt = cnt; 1755 return cnt; 1756 } 1757 1758 INIT_LIST_HEAD(&mp2->list); 1759 } else { 1760 mp2 = NULL; 1761 } 1762 1763 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1764 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1765 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1766 icmd->ulpBdeCount = 1; 1767 cnt--; 1768 if (mp2) { 1769 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1770 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1771 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1772 cnt--; 1773 icmd->ulpBdeCount = 2; 1774 } 1775 1776 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1777 icmd->ulpLe = 1; 1778 1779 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 1780 IOCB_ERROR) { 1781 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1782 kfree(mp1); 1783 cnt++; 1784 if (mp2) { 1785 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1786 kfree(mp2); 1787 cnt++; 1788 } 1789 lpfc_sli_release_iocbq(phba, iocb); 1790 pring->missbufcnt = cnt; 1791 return cnt; 1792 } 1793 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1794 if (mp2) 1795 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1796 } 1797 pring->missbufcnt = 0; 1798 return 0; 1799} 1800 1801/** 1802 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 1803 * @phba: pointer to lpfc hba data structure. 1804 * 1805 * This routine posts initial receive IOCB buffers to the ELS ring. The 1806 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 1807 * set to 64 IOCBs. 1808 * 1809 * Return codes 1810 * 0 - success (currently always success) 1811 **/ 1812static int 1813lpfc_post_rcv_buf(struct lpfc_hba *phba) 1814{ 1815 struct lpfc_sli *psli = &phba->sli; 1816 1817 /* Ring 0, ELS / CT buffers */ 1818 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 1819 /* Ring 2 - FCP no buffers needed */ 1820 1821 return 0; 1822} 1823 1824#define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 1825 1826/** 1827 * lpfc_sha_init - Set up initial array of hash table entries 1828 * @HashResultPointer: pointer to an array as hash table. 1829 * 1830 * This routine sets up the initial values to the array of hash table entries 1831 * for the LC HBAs. 1832 **/ 1833static void 1834lpfc_sha_init(uint32_t * HashResultPointer) 1835{ 1836 HashResultPointer[0] = 0x67452301; 1837 HashResultPointer[1] = 0xEFCDAB89; 1838 HashResultPointer[2] = 0x98BADCFE; 1839 HashResultPointer[3] = 0x10325476; 1840 HashResultPointer[4] = 0xC3D2E1F0; 1841} 1842 1843/** 1844 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 1845 * @HashResultPointer: pointer to an initial/result hash table. 1846 * @HashWorkingPointer: pointer to an working hash table. 1847 * 1848 * This routine iterates an initial hash table pointed by @HashResultPointer 1849 * with the values from the working hash table pointeed by @HashWorkingPointer. 1850 * The results are putting back to the initial hash table, returned through 1851 * the @HashResultPointer as the result hash table. 1852 **/ 1853static void 1854lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 1855{ 1856 int t; 1857 uint32_t TEMP; 1858 uint32_t A, B, C, D, E; 1859 t = 16; 1860 do { 1861 HashWorkingPointer[t] = 1862 S(1, 1863 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 1864 8] ^ 1865 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 1866 } while (++t <= 79); 1867 t = 0; 1868 A = HashResultPointer[0]; 1869 B = HashResultPointer[1]; 1870 C = HashResultPointer[2]; 1871 D = HashResultPointer[3]; 1872 E = HashResultPointer[4]; 1873 1874 do { 1875 if (t < 20) { 1876 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 1877 } else if (t < 40) { 1878 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 1879 } else if (t < 60) { 1880 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 1881 } else { 1882 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 1883 } 1884 TEMP += S(5, A) + E + HashWorkingPointer[t]; 1885 E = D; 1886 D = C; 1887 C = S(30, B); 1888 B = A; 1889 A = TEMP; 1890 } while (++t <= 79); 1891 1892 HashResultPointer[0] += A; 1893 HashResultPointer[1] += B; 1894 HashResultPointer[2] += C; 1895 HashResultPointer[3] += D; 1896 HashResultPointer[4] += E; 1897 1898} 1899 1900/** 1901 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 1902 * @RandomChallenge: pointer to the entry of host challenge random number array. 1903 * @HashWorking: pointer to the entry of the working hash array. 1904 * 1905 * This routine calculates the working hash array referred by @HashWorking 1906 * from the challenge random numbers associated with the host, referred by 1907 * @RandomChallenge. The result is put into the entry of the working hash 1908 * array and returned by reference through @HashWorking. 1909 **/ 1910static void 1911lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 1912{ 1913 *HashWorking = (*RandomChallenge ^ *HashWorking); 1914} 1915 1916/** 1917 * lpfc_hba_init - Perform special handling for LC HBA initialization 1918 * @phba: pointer to lpfc hba data structure. 1919 * @hbainit: pointer to an array of unsigned 32-bit integers. 1920 * 1921 * This routine performs the special handling for LC HBA initialization. 1922 **/ 1923void 1924lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 1925{ 1926 int t; 1927 uint32_t *HashWorking; 1928 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 1929 1930 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 1931 if (!HashWorking) 1932 return; 1933 1934 HashWorking[0] = HashWorking[78] = *pwwnn++; 1935 HashWorking[1] = HashWorking[79] = *pwwnn; 1936 1937 for (t = 0; t < 7; t++) 1938 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 1939 1940 lpfc_sha_init(hbainit); 1941 lpfc_sha_iterate(hbainit, HashWorking); 1942 kfree(HashWorking); 1943} 1944 1945/** 1946 * lpfc_cleanup - Performs vport cleanups before deleting a vport 1947 * @vport: pointer to a virtual N_Port data structure. 1948 * 1949 * This routine performs the necessary cleanups before deleting the @vport. 1950 * It invokes the discovery state machine to perform necessary state 1951 * transitions and to release the ndlps associated with the @vport. Note, 1952 * the physical port is treated as @vport 0. 1953 **/ 1954void 1955lpfc_cleanup(struct lpfc_vport *vport) 1956{ 1957 struct lpfc_hba *phba = vport->phba; 1958 struct lpfc_nodelist *ndlp, *next_ndlp; 1959 int i = 0; 1960 1961 if (phba->link_state > LPFC_LINK_DOWN) 1962 lpfc_port_link_failure(vport); 1963 1964 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 1965 if (!NLP_CHK_NODE_ACT(ndlp)) { 1966 ndlp = lpfc_enable_node(vport, ndlp, 1967 NLP_STE_UNUSED_NODE); 1968 if (!ndlp) 1969 continue; 1970 spin_lock_irq(&phba->ndlp_lock); 1971 NLP_SET_FREE_REQ(ndlp); 1972 spin_unlock_irq(&phba->ndlp_lock); 1973 /* Trigger the release of the ndlp memory */ 1974 lpfc_nlp_put(ndlp); 1975 continue; 1976 } 1977 spin_lock_irq(&phba->ndlp_lock); 1978 if (NLP_CHK_FREE_REQ(ndlp)) { 1979 /* The ndlp should not be in memory free mode already */ 1980 spin_unlock_irq(&phba->ndlp_lock); 1981 continue; 1982 } else 1983 /* Indicate request for freeing ndlp memory */ 1984 NLP_SET_FREE_REQ(ndlp); 1985 spin_unlock_irq(&phba->ndlp_lock); 1986 1987 if (vport->port_type != LPFC_PHYSICAL_PORT && 1988 ndlp->nlp_DID == Fabric_DID) { 1989 /* Just free up ndlp with Fabric_DID for vports */ 1990 lpfc_nlp_put(ndlp); 1991 continue; 1992 } 1993 1994 if (ndlp->nlp_type & NLP_FABRIC) 1995 lpfc_disc_state_machine(vport, ndlp, NULL, 1996 NLP_EVT_DEVICE_RECOVERY); 1997 1998 lpfc_disc_state_machine(vport, ndlp, NULL, 1999 NLP_EVT_DEVICE_RM); 2000 2001 } 2002 2003 /* At this point, ALL ndlp's should be gone 2004 * because of the previous NLP_EVT_DEVICE_RM. 2005 * Lets wait for this to happen, if needed. 2006 */ 2007 while (!list_empty(&vport->fc_nodes)) { 2008 if (i++ > 3000) { 2009 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2010 "0233 Nodelist not empty\n"); 2011 list_for_each_entry_safe(ndlp, next_ndlp, 2012 &vport->fc_nodes, nlp_listp) { 2013 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2014 LOG_NODE, 2015 "0282 did:x%x ndlp:x%p " 2016 "usgmap:x%x refcnt:%d\n", 2017 ndlp->nlp_DID, (void *)ndlp, 2018 ndlp->nlp_usg_map, 2019 atomic_read( 2020 &ndlp->kref.refcount)); 2021 } 2022 break; 2023 } 2024 2025 /* Wait for any activity on ndlps to settle */ 2026 msleep(10); 2027 } 2028} 2029 2030/** 2031 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2032 * @vport: pointer to a virtual N_Port data structure. 2033 * 2034 * This routine stops all the timers associated with a @vport. This function 2035 * is invoked before disabling or deleting a @vport. Note that the physical 2036 * port is treated as @vport 0. 2037 **/ 2038void 2039lpfc_stop_vport_timers(struct lpfc_vport *vport) 2040{ 2041 del_timer_sync(&vport->els_tmofunc); 2042 del_timer_sync(&vport->fc_fdmitmo); 2043 lpfc_can_disctmo(vport); 2044 return; 2045} 2046 2047/** 2048 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2049 * @phba: pointer to lpfc hba data structure. 2050 * 2051 * This routine stops all the timers associated with a HBA. This function is 2052 * invoked before either putting a HBA offline or unloading the driver. 2053 **/ 2054void 2055lpfc_stop_hba_timers(struct lpfc_hba *phba) 2056{ 2057 lpfc_stop_vport_timers(phba->pport); 2058 del_timer_sync(&phba->sli.mbox_tmo); 2059 del_timer_sync(&phba->fabric_block_timer); 2060 del_timer_sync(&phba->eratt_poll); 2061 del_timer_sync(&phba->hb_tmofunc); 2062 phba->hb_outstanding = 0; 2063 2064 switch (phba->pci_dev_grp) { 2065 case LPFC_PCI_DEV_LP: 2066 /* Stop any LightPulse device specific driver timers */ 2067 del_timer_sync(&phba->fcp_poll_timer); 2068 break; 2069 case LPFC_PCI_DEV_OC: 2070 /* Stop any OneConnect device sepcific driver timers */ 2071 break; 2072 default: 2073 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2074 "0297 Invalid device group (x%x)\n", 2075 phba->pci_dev_grp); 2076 break; 2077 } 2078 return; 2079} 2080 2081/** 2082 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2083 * @phba: pointer to lpfc hba data structure. 2084 * 2085 * This routine marks a HBA's management interface as blocked. Once the HBA's 2086 * management interface is marked as blocked, all the user space access to 2087 * the HBA, whether they are from sysfs interface or libdfc interface will 2088 * all be blocked. The HBA is set to block the management interface when the 2089 * driver prepares the HBA interface for online or offline. 2090 **/ 2091static void 2092lpfc_block_mgmt_io(struct lpfc_hba * phba) 2093{ 2094 unsigned long iflag; 2095 2096 spin_lock_irqsave(&phba->hbalock, iflag); 2097 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2098 spin_unlock_irqrestore(&phba->hbalock, iflag); 2099} 2100 2101/** 2102 * lpfc_online - Initialize and bring a HBA online 2103 * @phba: pointer to lpfc hba data structure. 2104 * 2105 * This routine initializes the HBA and brings a HBA online. During this 2106 * process, the management interface is blocked to prevent user space access 2107 * to the HBA interfering with the driver initialization. 2108 * 2109 * Return codes 2110 * 0 - successful 2111 * 1 - failed 2112 **/ 2113int 2114lpfc_online(struct lpfc_hba *phba) 2115{ 2116 struct lpfc_vport *vport; 2117 struct lpfc_vport **vports; 2118 int i; 2119 2120 if (!phba) 2121 return 0; 2122 vport = phba->pport; 2123 2124 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2125 return 0; 2126 2127 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2128 "0458 Bring Adapter online\n"); 2129 2130 lpfc_block_mgmt_io(phba); 2131 2132 if (!lpfc_sli_queue_setup(phba)) { 2133 lpfc_unblock_mgmt_io(phba); 2134 return 1; 2135 } 2136 2137 if (phba->sli_rev == LPFC_SLI_REV4) { 2138 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2139 lpfc_unblock_mgmt_io(phba); 2140 return 1; 2141 } 2142 } else { 2143 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2144 lpfc_unblock_mgmt_io(phba); 2145 return 1; 2146 } 2147 } 2148 2149 vports = lpfc_create_vport_work_array(phba); 2150 if (vports != NULL) 2151 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2152 struct Scsi_Host *shost; 2153 shost = lpfc_shost_from_vport(vports[i]); 2154 spin_lock_irq(shost->host_lock); 2155 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2156 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2157 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2158 spin_unlock_irq(shost->host_lock); 2159 } 2160 lpfc_destroy_vport_work_array(phba, vports); 2161 2162 lpfc_unblock_mgmt_io(phba); 2163 return 0; 2164} 2165 2166/** 2167 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2168 * @phba: pointer to lpfc hba data structure. 2169 * 2170 * This routine marks a HBA's management interface as not blocked. Once the 2171 * HBA's management interface is marked as not blocked, all the user space 2172 * access to the HBA, whether they are from sysfs interface or libdfc 2173 * interface will be allowed. The HBA is set to block the management interface 2174 * when the driver prepares the HBA interface for online or offline and then 2175 * set to unblock the management interface afterwards. 2176 **/ 2177void 2178lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2179{ 2180 unsigned long iflag; 2181 2182 spin_lock_irqsave(&phba->hbalock, iflag); 2183 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2184 spin_unlock_irqrestore(&phba->hbalock, iflag); 2185} 2186 2187/** 2188 * lpfc_offline_prep - Prepare a HBA to be brought offline 2189 * @phba: pointer to lpfc hba data structure. 2190 * 2191 * This routine is invoked to prepare a HBA to be brought offline. It performs 2192 * unregistration login to all the nodes on all vports and flushes the mailbox 2193 * queue to make it ready to be brought offline. 2194 **/ 2195void 2196lpfc_offline_prep(struct lpfc_hba * phba) 2197{ 2198 struct lpfc_vport *vport = phba->pport; 2199 struct lpfc_nodelist *ndlp, *next_ndlp; 2200 struct lpfc_vport **vports; 2201 int i; 2202 2203 if (vport->fc_flag & FC_OFFLINE_MODE) 2204 return; 2205 2206 lpfc_block_mgmt_io(phba); 2207 2208 lpfc_linkdown(phba); 2209 2210 /* Issue an unreg_login to all nodes on all vports */ 2211 vports = lpfc_create_vport_work_array(phba); 2212 if (vports != NULL) { 2213 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2214 struct Scsi_Host *shost; 2215 2216 if (vports[i]->load_flag & FC_UNLOADING) 2217 continue; 2218 vports[i]->vfi_state &= ~LPFC_VFI_REGISTERED; 2219 shost = lpfc_shost_from_vport(vports[i]); 2220 list_for_each_entry_safe(ndlp, next_ndlp, 2221 &vports[i]->fc_nodes, 2222 nlp_listp) { 2223 if (!NLP_CHK_NODE_ACT(ndlp)) 2224 continue; 2225 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2226 continue; 2227 if (ndlp->nlp_type & NLP_FABRIC) { 2228 lpfc_disc_state_machine(vports[i], ndlp, 2229 NULL, NLP_EVT_DEVICE_RECOVERY); 2230 lpfc_disc_state_machine(vports[i], ndlp, 2231 NULL, NLP_EVT_DEVICE_RM); 2232 } 2233 spin_lock_irq(shost->host_lock); 2234 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2235 spin_unlock_irq(shost->host_lock); 2236 lpfc_unreg_rpi(vports[i], ndlp); 2237 } 2238 } 2239 } 2240 lpfc_destroy_vport_work_array(phba, vports); 2241 2242 lpfc_sli_mbox_sys_shutdown(phba); 2243} 2244 2245/** 2246 * lpfc_offline - Bring a HBA offline 2247 * @phba: pointer to lpfc hba data structure. 2248 * 2249 * This routine actually brings a HBA offline. It stops all the timers 2250 * associated with the HBA, brings down the SLI layer, and eventually 2251 * marks the HBA as in offline state for the upper layer protocol. 2252 **/ 2253void 2254lpfc_offline(struct lpfc_hba *phba) 2255{ 2256 struct Scsi_Host *shost; 2257 struct lpfc_vport **vports; 2258 int i; 2259 2260 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2261 return; 2262 2263 /* stop port and all timers associated with this hba */ 2264 lpfc_stop_port(phba); 2265 vports = lpfc_create_vport_work_array(phba); 2266 if (vports != NULL) 2267 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2268 lpfc_stop_vport_timers(vports[i]); 2269 lpfc_destroy_vport_work_array(phba, vports); 2270 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2271 "0460 Bring Adapter offline\n"); 2272 /* Bring down the SLI Layer and cleanup. The HBA is offline 2273 now. */ 2274 lpfc_sli_hba_down(phba); 2275 spin_lock_irq(&phba->hbalock); 2276 phba->work_ha = 0; 2277 spin_unlock_irq(&phba->hbalock); 2278 vports = lpfc_create_vport_work_array(phba); 2279 if (vports != NULL) 2280 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2281 shost = lpfc_shost_from_vport(vports[i]); 2282 spin_lock_irq(shost->host_lock); 2283 vports[i]->work_port_events = 0; 2284 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2285 spin_unlock_irq(shost->host_lock); 2286 } 2287 lpfc_destroy_vport_work_array(phba, vports); 2288} 2289 2290/** 2291 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2292 * @phba: pointer to lpfc hba data structure. 2293 * 2294 * This routine is to free all the SCSI buffers and IOCBs from the driver 2295 * list back to kernel. It is called from lpfc_pci_remove_one to free 2296 * the internal resources before the device is removed from the system. 2297 * 2298 * Return codes 2299 * 0 - successful (for now, it always returns 0) 2300 **/ 2301static int 2302lpfc_scsi_free(struct lpfc_hba *phba) 2303{ 2304 struct lpfc_scsi_buf *sb, *sb_next; 2305 struct lpfc_iocbq *io, *io_next; 2306 2307 spin_lock_irq(&phba->hbalock); 2308 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2309 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2310 list_del(&sb->list); 2311 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2312 sb->dma_handle); 2313 kfree(sb); 2314 phba->total_scsi_bufs--; 2315 } 2316 2317 /* Release all the lpfc_iocbq entries maintained by this host. */ 2318 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2319 list_del(&io->list); 2320 kfree(io); 2321 phba->total_iocbq_bufs--; 2322 } 2323 2324 spin_unlock_irq(&phba->hbalock); 2325 2326 return 0; 2327} 2328 2329/** 2330 * lpfc_create_port - Create an FC port 2331 * @phba: pointer to lpfc hba data structure. 2332 * @instance: a unique integer ID to this FC port. 2333 * @dev: pointer to the device data structure. 2334 * 2335 * This routine creates a FC port for the upper layer protocol. The FC port 2336 * can be created on top of either a physical port or a virtual port provided 2337 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2338 * and associates the FC port created before adding the shost into the SCSI 2339 * layer. 2340 * 2341 * Return codes 2342 * @vport - pointer to the virtual N_Port data structure. 2343 * NULL - port create failed. 2344 **/ 2345struct lpfc_vport * 2346lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2347{ 2348 struct lpfc_vport *vport; 2349 struct Scsi_Host *shost; 2350 int error = 0; 2351 2352 if (dev != &phba->pcidev->dev) 2353 shost = scsi_host_alloc(&lpfc_vport_template, 2354 sizeof(struct lpfc_vport)); 2355 else 2356 shost = scsi_host_alloc(&lpfc_template, 2357 sizeof(struct lpfc_vport)); 2358 if (!shost) 2359 goto out; 2360 2361 vport = (struct lpfc_vport *) shost->hostdata; 2362 vport->phba = phba; 2363 vport->load_flag |= FC_LOADING; 2364 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2365 vport->fc_rscn_flush = 0; 2366 2367 lpfc_get_vport_cfgparam(vport); 2368 shost->unique_id = instance; 2369 shost->max_id = LPFC_MAX_TARGET; 2370 shost->max_lun = vport->cfg_max_luns; 2371 shost->this_id = -1; 2372 shost->max_cmd_len = 16; 2373 if (phba->sli_rev == LPFC_SLI_REV4) { 2374 shost->dma_boundary = LPFC_SLI4_MAX_SEGMENT_SIZE; 2375 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2376 } 2377 2378 /* 2379 * Set initial can_queue value since 0 is no longer supported and 2380 * scsi_add_host will fail. This will be adjusted later based on the 2381 * max xri value determined in hba setup. 2382 */ 2383 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2384 if (dev != &phba->pcidev->dev) { 2385 shost->transportt = lpfc_vport_transport_template; 2386 vport->port_type = LPFC_NPIV_PORT; 2387 } else { 2388 shost->transportt = lpfc_transport_template; 2389 vport->port_type = LPFC_PHYSICAL_PORT; 2390 } 2391 2392 /* Initialize all internally managed lists. */ 2393 INIT_LIST_HEAD(&vport->fc_nodes); 2394 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2395 spin_lock_init(&vport->work_port_lock); 2396 2397 init_timer(&vport->fc_disctmo); 2398 vport->fc_disctmo.function = lpfc_disc_timeout; 2399 vport->fc_disctmo.data = (unsigned long)vport; 2400 2401 init_timer(&vport->fc_fdmitmo); 2402 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2403 vport->fc_fdmitmo.data = (unsigned long)vport; 2404 2405 init_timer(&vport->els_tmofunc); 2406 vport->els_tmofunc.function = lpfc_els_timeout; 2407 vport->els_tmofunc.data = (unsigned long)vport; 2408 2409 error = scsi_add_host(shost, dev); 2410 if (error) 2411 goto out_put_shost; 2412 2413 spin_lock_irq(&phba->hbalock); 2414 list_add_tail(&vport->listentry, &phba->port_list); 2415 spin_unlock_irq(&phba->hbalock); 2416 return vport; 2417 2418out_put_shost: 2419 scsi_host_put(shost); 2420out: 2421 return NULL; 2422} 2423 2424/** 2425 * destroy_port - destroy an FC port 2426 * @vport: pointer to an lpfc virtual N_Port data structure. 2427 * 2428 * This routine destroys a FC port from the upper layer protocol. All the 2429 * resources associated with the port are released. 2430 **/ 2431void 2432destroy_port(struct lpfc_vport *vport) 2433{ 2434 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2435 struct lpfc_hba *phba = vport->phba; 2436 2437 lpfc_debugfs_terminate(vport); 2438 fc_remove_host(shost); 2439 scsi_remove_host(shost); 2440 2441 spin_lock_irq(&phba->hbalock); 2442 list_del_init(&vport->listentry); 2443 spin_unlock_irq(&phba->hbalock); 2444 2445 lpfc_cleanup(vport); 2446 return; 2447} 2448 2449/** 2450 * lpfc_get_instance - Get a unique integer ID 2451 * 2452 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2453 * uses the kernel idr facility to perform the task. 2454 * 2455 * Return codes: 2456 * instance - a unique integer ID allocated as the new instance. 2457 * -1 - lpfc get instance failed. 2458 **/ 2459int 2460lpfc_get_instance(void) 2461{ 2462 int instance = 0; 2463 2464 /* Assign an unused number */ 2465 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2466 return -1; 2467 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2468 return -1; 2469 return instance; 2470} 2471 2472/** 2473 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2474 * @shost: pointer to SCSI host data structure. 2475 * @time: elapsed time of the scan in jiffies. 2476 * 2477 * This routine is called by the SCSI layer with a SCSI host to determine 2478 * whether the scan host is finished. 2479 * 2480 * Note: there is no scan_start function as adapter initialization will have 2481 * asynchronously kicked off the link initialization. 2482 * 2483 * Return codes 2484 * 0 - SCSI host scan is not over yet. 2485 * 1 - SCSI host scan is over. 2486 **/ 2487int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2488{ 2489 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2490 struct lpfc_hba *phba = vport->phba; 2491 int stat = 0; 2492 2493 spin_lock_irq(shost->host_lock); 2494 2495 if (vport->load_flag & FC_UNLOADING) { 2496 stat = 1; 2497 goto finished; 2498 } 2499 if (time >= 30 * HZ) { 2500 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2501 "0461 Scanning longer than 30 " 2502 "seconds. Continuing initialization\n"); 2503 stat = 1; 2504 goto finished; 2505 } 2506 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2507 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2508 "0465 Link down longer than 15 " 2509 "seconds. Continuing initialization\n"); 2510 stat = 1; 2511 goto finished; 2512 } 2513 2514 if (vport->port_state != LPFC_VPORT_READY) 2515 goto finished; 2516 if (vport->num_disc_nodes || vport->fc_prli_sent) 2517 goto finished; 2518 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2519 goto finished; 2520 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2521 goto finished; 2522 2523 stat = 1; 2524 2525finished: 2526 spin_unlock_irq(shost->host_lock); 2527 return stat; 2528} 2529 2530/** 2531 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 2532 * @shost: pointer to SCSI host data structure. 2533 * 2534 * This routine initializes a given SCSI host attributes on a FC port. The 2535 * SCSI host can be either on top of a physical port or a virtual port. 2536 **/ 2537void lpfc_host_attrib_init(struct Scsi_Host *shost) 2538{ 2539 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2540 struct lpfc_hba *phba = vport->phba; 2541 /* 2542 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2543 */ 2544 2545 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2546 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2547 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2548 2549 memset(fc_host_supported_fc4s(shost), 0, 2550 sizeof(fc_host_supported_fc4s(shost))); 2551 fc_host_supported_fc4s(shost)[2] = 1; 2552 fc_host_supported_fc4s(shost)[7] = 1; 2553 2554 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2555 sizeof fc_host_symbolic_name(shost)); 2556 2557 fc_host_supported_speeds(shost) = 0; 2558 if (phba->lmt & LMT_10Gb) 2559 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2560 if (phba->lmt & LMT_8Gb) 2561 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2562 if (phba->lmt & LMT_4Gb) 2563 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2564 if (phba->lmt & LMT_2Gb) 2565 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2566 if (phba->lmt & LMT_1Gb) 2567 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2568 2569 fc_host_maxframe_size(shost) = 2570 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2571 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2572 2573 /* This value is also unchanging */ 2574 memset(fc_host_active_fc4s(shost), 0, 2575 sizeof(fc_host_active_fc4s(shost))); 2576 fc_host_active_fc4s(shost)[2] = 1; 2577 fc_host_active_fc4s(shost)[7] = 1; 2578 2579 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2580 spin_lock_irq(shost->host_lock); 2581 vport->load_flag &= ~FC_LOADING; 2582 spin_unlock_irq(shost->host_lock); 2583} 2584 2585/** 2586 * lpfc_stop_port_s3 - Stop SLI3 device port 2587 * @phba: pointer to lpfc hba data structure. 2588 * 2589 * This routine is invoked to stop an SLI3 device port, it stops the device 2590 * from generating interrupts and stops the device driver's timers for the 2591 * device. 2592 **/ 2593static void 2594lpfc_stop_port_s3(struct lpfc_hba *phba) 2595{ 2596 /* Clear all interrupt enable conditions */ 2597 writel(0, phba->HCregaddr); 2598 readl(phba->HCregaddr); /* flush */ 2599 /* Clear all pending interrupts */ 2600 writel(0xffffffff, phba->HAregaddr); 2601 readl(phba->HAregaddr); /* flush */ 2602 2603 /* Reset some HBA SLI setup states */ 2604 lpfc_stop_hba_timers(phba); 2605 phba->pport->work_port_events = 0; 2606} 2607 2608/** 2609 * lpfc_stop_port_s4 - Stop SLI4 device port 2610 * @phba: pointer to lpfc hba data structure. 2611 * 2612 * This routine is invoked to stop an SLI4 device port, it stops the device 2613 * from generating interrupts and stops the device driver's timers for the 2614 * device. 2615 **/ 2616static void 2617lpfc_stop_port_s4(struct lpfc_hba *phba) 2618{ 2619 /* Reset some HBA SLI4 setup states */ 2620 lpfc_stop_hba_timers(phba); 2621 phba->pport->work_port_events = 0; 2622 phba->sli4_hba.intr_enable = 0; 2623 /* Hard clear it for now, shall have more graceful way to wait later */ 2624 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 2625} 2626 2627/** 2628 * lpfc_stop_port - Wrapper function for stopping hba port 2629 * @phba: Pointer to HBA context object. 2630 * 2631 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 2632 * the API jump table function pointer from the lpfc_hba struct. 2633 **/ 2634void 2635lpfc_stop_port(struct lpfc_hba *phba) 2636{ 2637 phba->lpfc_stop_port(phba); 2638} 2639 2640/** 2641 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port. 2642 * @phba: pointer to lpfc hba data structure. 2643 * 2644 * This routine is invoked to remove the driver default fcf record from 2645 * the port. This routine currently acts on FCF Index 0. 2646 * 2647 **/ 2648void 2649lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba) 2650{ 2651 int rc = 0; 2652 LPFC_MBOXQ_t *mboxq; 2653 struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record; 2654 uint32_t mbox_tmo, req_len; 2655 uint32_t shdr_status, shdr_add_status; 2656 2657 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2658 if (!mboxq) { 2659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2660 "2020 Failed to allocate mbox for ADD_FCF cmd\n"); 2661 return; 2662 } 2663 2664 req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) - 2665 sizeof(struct lpfc_sli4_cfg_mhdr); 2666 rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, 2667 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF, 2668 req_len, LPFC_SLI4_MBX_EMBED); 2669 /* 2670 * In phase 1, there is a single FCF index, 0. In phase2, the driver 2671 * supports multiple FCF indices. 2672 */ 2673 del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry; 2674 bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1); 2675 bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record, 2676 phba->fcf.fcf_indx); 2677 2678 if (!phba->sli4_hba.intr_enable) 2679 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 2680 else { 2681 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 2682 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 2683 } 2684 /* The IOCTL status is embedded in the mailbox subheader. */ 2685 shdr_status = bf_get(lpfc_mbox_hdr_status, 2686 &del_fcf_record->header.cfg_shdr.response); 2687 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 2688 &del_fcf_record->header.cfg_shdr.response); 2689 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 2690 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2691 "2516 DEL FCF of default FCF Index failed " 2692 "mbx status x%x, status x%x add_status x%x\n", 2693 rc, shdr_status, shdr_add_status); 2694 } 2695 if (rc != MBX_TIMEOUT) 2696 mempool_free(mboxq, phba->mbox_mem_pool); 2697} 2698 2699/** 2700 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 2701 * @phba: pointer to lpfc hba data structure. 2702 * @acqe_link: pointer to the async link completion queue entry. 2703 * 2704 * This routine is to parse the SLI4 link-attention link fault code and 2705 * translate it into the base driver's read link attention mailbox command 2706 * status. 2707 * 2708 * Return: Link-attention status in terms of base driver's coding. 2709 **/ 2710static uint16_t 2711lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 2712 struct lpfc_acqe_link *acqe_link) 2713{ 2714 uint16_t latt_fault; 2715 2716 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 2717 case LPFC_ASYNC_LINK_FAULT_NONE: 2718 case LPFC_ASYNC_LINK_FAULT_LOCAL: 2719 case LPFC_ASYNC_LINK_FAULT_REMOTE: 2720 latt_fault = 0; 2721 break; 2722 default: 2723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2724 "0398 Invalid link fault code: x%x\n", 2725 bf_get(lpfc_acqe_link_fault, acqe_link)); 2726 latt_fault = MBXERR_ERROR; 2727 break; 2728 } 2729 return latt_fault; 2730} 2731 2732/** 2733 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 2734 * @phba: pointer to lpfc hba data structure. 2735 * @acqe_link: pointer to the async link completion queue entry. 2736 * 2737 * This routine is to parse the SLI4 link attention type and translate it 2738 * into the base driver's link attention type coding. 2739 * 2740 * Return: Link attention type in terms of base driver's coding. 2741 **/ 2742static uint8_t 2743lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 2744 struct lpfc_acqe_link *acqe_link) 2745{ 2746 uint8_t att_type; 2747 2748 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 2749 case LPFC_ASYNC_LINK_STATUS_DOWN: 2750 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 2751 att_type = AT_LINK_DOWN; 2752 break; 2753 case LPFC_ASYNC_LINK_STATUS_UP: 2754 /* Ignore physical link up events - wait for logical link up */ 2755 att_type = AT_RESERVED; 2756 break; 2757 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 2758 att_type = AT_LINK_UP; 2759 break; 2760 default: 2761 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2762 "0399 Invalid link attention type: x%x\n", 2763 bf_get(lpfc_acqe_link_status, acqe_link)); 2764 att_type = AT_RESERVED; 2765 break; 2766 } 2767 return att_type; 2768} 2769 2770/** 2771 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 2772 * @phba: pointer to lpfc hba data structure. 2773 * @acqe_link: pointer to the async link completion queue entry. 2774 * 2775 * This routine is to parse the SLI4 link-attention link speed and translate 2776 * it into the base driver's link-attention link speed coding. 2777 * 2778 * Return: Link-attention link speed in terms of base driver's coding. 2779 **/ 2780static uint8_t 2781lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 2782 struct lpfc_acqe_link *acqe_link) 2783{ 2784 uint8_t link_speed; 2785 2786 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 2787 case LPFC_ASYNC_LINK_SPEED_ZERO: 2788 link_speed = LA_UNKNW_LINK; 2789 break; 2790 case LPFC_ASYNC_LINK_SPEED_10MBPS: 2791 link_speed = LA_UNKNW_LINK; 2792 break; 2793 case LPFC_ASYNC_LINK_SPEED_100MBPS: 2794 link_speed = LA_UNKNW_LINK; 2795 break; 2796 case LPFC_ASYNC_LINK_SPEED_1GBPS: 2797 link_speed = LA_1GHZ_LINK; 2798 break; 2799 case LPFC_ASYNC_LINK_SPEED_10GBPS: 2800 link_speed = LA_10GHZ_LINK; 2801 break; 2802 default: 2803 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2804 "0483 Invalid link-attention link speed: x%x\n", 2805 bf_get(lpfc_acqe_link_speed, acqe_link)); 2806 link_speed = LA_UNKNW_LINK; 2807 break; 2808 } 2809 return link_speed; 2810} 2811 2812/** 2813 * lpfc_sli4_async_link_evt - Process the asynchronous link event 2814 * @phba: pointer to lpfc hba data structure. 2815 * @acqe_link: pointer to the async link completion queue entry. 2816 * 2817 * This routine is to handle the SLI4 asynchronous link event. 2818 **/ 2819static void 2820lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 2821 struct lpfc_acqe_link *acqe_link) 2822{ 2823 struct lpfc_dmabuf *mp; 2824 LPFC_MBOXQ_t *pmb; 2825 MAILBOX_t *mb; 2826 READ_LA_VAR *la; 2827 uint8_t att_type; 2828 2829 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 2830 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP) 2831 return; 2832 phba->fcoe_eventtag = acqe_link->event_tag; 2833 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2834 if (!pmb) { 2835 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2836 "0395 The mboxq allocation failed\n"); 2837 return; 2838 } 2839 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 2840 if (!mp) { 2841 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2842 "0396 The lpfc_dmabuf allocation failed\n"); 2843 goto out_free_pmb; 2844 } 2845 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 2846 if (!mp->virt) { 2847 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2848 "0397 The mbuf allocation failed\n"); 2849 goto out_free_dmabuf; 2850 } 2851 2852 /* Cleanup any outstanding ELS commands */ 2853 lpfc_els_flush_all_cmd(phba); 2854 2855 /* Block ELS IOCBs until we have done process link event */ 2856 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 2857 2858 /* Update link event statistics */ 2859 phba->sli.slistat.link_event++; 2860 2861 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */ 2862 lpfc_read_la(phba, pmb, mp); 2863 pmb->vport = phba->pport; 2864 2865 /* Parse and translate status field */ 2866 mb = &pmb->u.mb; 2867 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 2868 2869 /* Parse and translate link attention fields */ 2870 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA; 2871 la->eventTag = acqe_link->event_tag; 2872 la->attType = att_type; 2873 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link); 2874 2875 /* Fake the the following irrelvant fields */ 2876 la->topology = TOPOLOGY_PT_PT; 2877 la->granted_AL_PA = 0; 2878 la->il = 0; 2879 la->pb = 0; 2880 la->fa = 0; 2881 la->mm = 0; 2882 2883 /* Keep the link status for extra SLI4 state machine reference */ 2884 phba->sli4_hba.link_state.speed = 2885 bf_get(lpfc_acqe_link_speed, acqe_link); 2886 phba->sli4_hba.link_state.duplex = 2887 bf_get(lpfc_acqe_link_duplex, acqe_link); 2888 phba->sli4_hba.link_state.status = 2889 bf_get(lpfc_acqe_link_status, acqe_link); 2890 phba->sli4_hba.link_state.physical = 2891 bf_get(lpfc_acqe_link_physical, acqe_link); 2892 phba->sli4_hba.link_state.fault = 2893 bf_get(lpfc_acqe_link_fault, acqe_link); 2894 2895 /* Invoke the lpfc_handle_latt mailbox command callback function */ 2896 lpfc_mbx_cmpl_read_la(phba, pmb); 2897 2898 return; 2899 2900out_free_dmabuf: 2901 kfree(mp); 2902out_free_pmb: 2903 mempool_free(pmb, phba->mbox_mem_pool); 2904} 2905 2906/** 2907 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event 2908 * @phba: pointer to lpfc hba data structure. 2909 * @acqe_link: pointer to the async fcoe completion queue entry. 2910 * 2911 * This routine is to handle the SLI4 asynchronous fcoe event. 2912 **/ 2913static void 2914lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, 2915 struct lpfc_acqe_fcoe *acqe_fcoe) 2916{ 2917 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe); 2918 int rc; 2919 2920 phba->fcoe_eventtag = acqe_fcoe->event_tag; 2921 switch (event_type) { 2922 case LPFC_FCOE_EVENT_TYPE_NEW_FCF: 2923 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 2924 "2546 New FCF found index 0x%x tag 0x%x \n", 2925 acqe_fcoe->fcf_index, 2926 acqe_fcoe->event_tag); 2927 /* 2928 * If the current FCF is in discovered state, or 2929 * FCF discovery is in progress do nothing. 2930 */ 2931 spin_lock_irq(&phba->hbalock); 2932 if ((phba->fcf.fcf_flag & FCF_DISCOVERED) || 2933 (phba->hba_flag & FCF_DISC_INPROGRESS)) { 2934 spin_unlock_irq(&phba->hbalock); 2935 break; 2936 } 2937 spin_unlock_irq(&phba->hbalock); 2938 2939 /* Read the FCF table and re-discover SAN. */ 2940 rc = lpfc_sli4_read_fcf_record(phba, 2941 LPFC_FCOE_FCF_GET_FIRST); 2942 if (rc) 2943 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 2944 "2547 Read FCF record failed 0x%x\n", 2945 rc); 2946 break; 2947 2948 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL: 2949 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2950 "2548 FCF Table full count 0x%x tag 0x%x \n", 2951 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe), 2952 acqe_fcoe->event_tag); 2953 break; 2954 2955 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD: 2956 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 2957 "2549 FCF disconnected fron network index 0x%x" 2958 " tag 0x%x \n", acqe_fcoe->fcf_index, 2959 acqe_fcoe->event_tag); 2960 /* If the event is not for currently used fcf do nothing */ 2961 if (phba->fcf.fcf_indx != acqe_fcoe->fcf_index) 2962 break; 2963 /* 2964 * Currently, driver support only one FCF - so treat this as 2965 * a link down. 2966 */ 2967 lpfc_linkdown(phba); 2968 /* Unregister FCF if no devices connected to it */ 2969 lpfc_unregister_unused_fcf(phba); 2970 break; 2971 2972 default: 2973 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2974 "0288 Unknown FCoE event type 0x%x event tag " 2975 "0x%x\n", event_type, acqe_fcoe->event_tag); 2976 break; 2977 } 2978} 2979 2980/** 2981 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 2982 * @phba: pointer to lpfc hba data structure. 2983 * @acqe_link: pointer to the async dcbx completion queue entry. 2984 * 2985 * This routine is to handle the SLI4 asynchronous dcbx event. 2986 **/ 2987static void 2988lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 2989 struct lpfc_acqe_dcbx *acqe_dcbx) 2990{ 2991 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2992 "0290 The SLI4 DCBX asynchronous event is not " 2993 "handled yet\n"); 2994} 2995 2996/** 2997 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 2998 * @phba: pointer to lpfc hba data structure. 2999 * 3000 * This routine is invoked by the worker thread to process all the pending 3001 * SLI4 asynchronous events. 3002 **/ 3003void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3004{ 3005 struct lpfc_cq_event *cq_event; 3006 3007 /* First, declare the async event has been handled */ 3008 spin_lock_irq(&phba->hbalock); 3009 phba->hba_flag &= ~ASYNC_EVENT; 3010 spin_unlock_irq(&phba->hbalock); 3011 /* Now, handle all the async events */ 3012 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3013 /* Get the first event from the head of the event queue */ 3014 spin_lock_irq(&phba->hbalock); 3015 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3016 cq_event, struct lpfc_cq_event, list); 3017 spin_unlock_irq(&phba->hbalock); 3018 /* Process the asynchronous event */ 3019 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3020 case LPFC_TRAILER_CODE_LINK: 3021 lpfc_sli4_async_link_evt(phba, 3022 &cq_event->cqe.acqe_link); 3023 break; 3024 case LPFC_TRAILER_CODE_FCOE: 3025 lpfc_sli4_async_fcoe_evt(phba, 3026 &cq_event->cqe.acqe_fcoe); 3027 break; 3028 case LPFC_TRAILER_CODE_DCBX: 3029 lpfc_sli4_async_dcbx_evt(phba, 3030 &cq_event->cqe.acqe_dcbx); 3031 break; 3032 default: 3033 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3034 "1804 Invalid asynchrous event code: " 3035 "x%x\n", bf_get(lpfc_trailer_code, 3036 &cq_event->cqe.mcqe_cmpl)); 3037 break; 3038 } 3039 /* Free the completion event processed to the free pool */ 3040 lpfc_sli4_cq_event_release(phba, cq_event); 3041 } 3042} 3043 3044/** 3045 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3046 * @phba: pointer to lpfc hba data structure. 3047 * @dev_grp: The HBA PCI-Device group number. 3048 * 3049 * This routine is invoked to set up the per HBA PCI-Device group function 3050 * API jump table entries. 3051 * 3052 * Return: 0 if success, otherwise -ENODEV 3053 **/ 3054int 3055lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3056{ 3057 int rc; 3058 3059 /* Set up lpfc PCI-device group */ 3060 phba->pci_dev_grp = dev_grp; 3061 3062 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3063 if (dev_grp == LPFC_PCI_DEV_OC) 3064 phba->sli_rev = LPFC_SLI_REV4; 3065 3066 /* Set up device INIT API function jump table */ 3067 rc = lpfc_init_api_table_setup(phba, dev_grp); 3068 if (rc) 3069 return -ENODEV; 3070 /* Set up SCSI API function jump table */ 3071 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3072 if (rc) 3073 return -ENODEV; 3074 /* Set up SLI API function jump table */ 3075 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3076 if (rc) 3077 return -ENODEV; 3078 /* Set up MBOX API function jump table */ 3079 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3080 if (rc) 3081 return -ENODEV; 3082 3083 return 0; 3084} 3085 3086/** 3087 * lpfc_log_intr_mode - Log the active interrupt mode 3088 * @phba: pointer to lpfc hba data structure. 3089 * @intr_mode: active interrupt mode adopted. 3090 * 3091 * This routine it invoked to log the currently used active interrupt mode 3092 * to the device. 3093 **/ 3094static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3095{ 3096 switch (intr_mode) { 3097 case 0: 3098 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3099 "0470 Enable INTx interrupt mode.\n"); 3100 break; 3101 case 1: 3102 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3103 "0481 Enabled MSI interrupt mode.\n"); 3104 break; 3105 case 2: 3106 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3107 "0480 Enabled MSI-X interrupt mode.\n"); 3108 break; 3109 default: 3110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3111 "0482 Illegal interrupt mode.\n"); 3112 break; 3113 } 3114 return; 3115} 3116 3117/** 3118 * lpfc_enable_pci_dev - Enable a generic PCI device. 3119 * @phba: pointer to lpfc hba data structure. 3120 * 3121 * This routine is invoked to enable the PCI device that is common to all 3122 * PCI devices. 3123 * 3124 * Return codes 3125 * 0 - sucessful 3126 * other values - error 3127 **/ 3128static int 3129lpfc_enable_pci_dev(struct lpfc_hba *phba) 3130{ 3131 struct pci_dev *pdev; 3132 int bars; 3133 3134 /* Obtain PCI device reference */ 3135 if (!phba->pcidev) 3136 goto out_error; 3137 else 3138 pdev = phba->pcidev; 3139 /* Select PCI BARs */ 3140 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3141 /* Enable PCI device */ 3142 if (pci_enable_device_mem(pdev)) 3143 goto out_error; 3144 /* Request PCI resource for the device */ 3145 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3146 goto out_disable_device; 3147 /* Set up device as PCI master and save state for EEH */ 3148 pci_set_master(pdev); 3149 pci_try_set_mwi(pdev); 3150 pci_save_state(pdev); 3151 3152 return 0; 3153 3154out_disable_device: 3155 pci_disable_device(pdev); 3156out_error: 3157 return -ENODEV; 3158} 3159 3160/** 3161 * lpfc_disable_pci_dev - Disable a generic PCI device. 3162 * @phba: pointer to lpfc hba data structure. 3163 * 3164 * This routine is invoked to disable the PCI device that is common to all 3165 * PCI devices. 3166 **/ 3167static void 3168lpfc_disable_pci_dev(struct lpfc_hba *phba) 3169{ 3170 struct pci_dev *pdev; 3171 int bars; 3172 3173 /* Obtain PCI device reference */ 3174 if (!phba->pcidev) 3175 return; 3176 else 3177 pdev = phba->pcidev; 3178 /* Select PCI BARs */ 3179 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3180 /* Release PCI resource and disable PCI device */ 3181 pci_release_selected_regions(pdev, bars); 3182 pci_disable_device(pdev); 3183 /* Null out PCI private reference to driver */ 3184 pci_set_drvdata(pdev, NULL); 3185 3186 return; 3187} 3188 3189/** 3190 * lpfc_reset_hba - Reset a hba 3191 * @phba: pointer to lpfc hba data structure. 3192 * 3193 * This routine is invoked to reset a hba device. It brings the HBA 3194 * offline, performs a board restart, and then brings the board back 3195 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 3196 * on outstanding mailbox commands. 3197 **/ 3198void 3199lpfc_reset_hba(struct lpfc_hba *phba) 3200{ 3201 /* If resets are disabled then set error state and return. */ 3202 if (!phba->cfg_enable_hba_reset) { 3203 phba->link_state = LPFC_HBA_ERROR; 3204 return; 3205 } 3206 lpfc_offline_prep(phba); 3207 lpfc_offline(phba); 3208 lpfc_sli_brdrestart(phba); 3209 lpfc_online(phba); 3210 lpfc_unblock_mgmt_io(phba); 3211} 3212 3213/** 3214 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 3215 * @phba: pointer to lpfc hba data structure. 3216 * 3217 * This routine is invoked to set up the driver internal resources specific to 3218 * support the SLI-3 HBA device it attached to. 3219 * 3220 * Return codes 3221 * 0 - sucessful 3222 * other values - error 3223 **/ 3224static int 3225lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 3226{ 3227 struct lpfc_sli *psli; 3228 3229 /* 3230 * Initialize timers used by driver 3231 */ 3232 3233 /* Heartbeat timer */ 3234 init_timer(&phba->hb_tmofunc); 3235 phba->hb_tmofunc.function = lpfc_hb_timeout; 3236 phba->hb_tmofunc.data = (unsigned long)phba; 3237 3238 psli = &phba->sli; 3239 /* MBOX heartbeat timer */ 3240 init_timer(&psli->mbox_tmo); 3241 psli->mbox_tmo.function = lpfc_mbox_timeout; 3242 psli->mbox_tmo.data = (unsigned long) phba; 3243 /* FCP polling mode timer */ 3244 init_timer(&phba->fcp_poll_timer); 3245 phba->fcp_poll_timer.function = lpfc_poll_timeout; 3246 phba->fcp_poll_timer.data = (unsigned long) phba; 3247 /* Fabric block timer */ 3248 init_timer(&phba->fabric_block_timer); 3249 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3250 phba->fabric_block_timer.data = (unsigned long) phba; 3251 /* EA polling mode timer */ 3252 init_timer(&phba->eratt_poll); 3253 phba->eratt_poll.function = lpfc_poll_eratt; 3254 phba->eratt_poll.data = (unsigned long) phba; 3255 3256 /* Host attention work mask setup */ 3257 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 3258 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 3259 3260 /* Get all the module params for configuring this host */ 3261 lpfc_get_cfgparam(phba); 3262 /* 3263 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3264 * used to create the sg_dma_buf_pool must be dynamically calculated. 3265 * 2 segments are added since the IOCB needs a command and response bde. 3266 */ 3267 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 3268 sizeof(struct fcp_rsp) + 3269 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 3270 3271 if (phba->cfg_enable_bg) { 3272 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 3273 phba->cfg_sg_dma_buf_size += 3274 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 3275 } 3276 3277 /* Also reinitialize the host templates with new values. */ 3278 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3279 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3280 3281 phba->max_vpi = LPFC_MAX_VPI; 3282 /* This will be set to correct value after config_port mbox */ 3283 phba->max_vports = 0; 3284 3285 /* 3286 * Initialize the SLI Layer to run with lpfc HBAs. 3287 */ 3288 lpfc_sli_setup(phba); 3289 lpfc_sli_queue_setup(phba); 3290 3291 /* Allocate device driver memory */ 3292 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 3293 return -ENOMEM; 3294 3295 return 0; 3296} 3297 3298/** 3299 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 3300 * @phba: pointer to lpfc hba data structure. 3301 * 3302 * This routine is invoked to unset the driver internal resources set up 3303 * specific for supporting the SLI-3 HBA device it attached to. 3304 **/ 3305static void 3306lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 3307{ 3308 /* Free device driver memory allocated */ 3309 lpfc_mem_free_all(phba); 3310 3311 return; 3312} 3313 3314/** 3315 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 3316 * @phba: pointer to lpfc hba data structure. 3317 * 3318 * This routine is invoked to set up the driver internal resources specific to 3319 * support the SLI-4 HBA device it attached to. 3320 * 3321 * Return codes 3322 * 0 - sucessful 3323 * other values - error 3324 **/ 3325static int 3326lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 3327{ 3328 struct lpfc_sli *psli; 3329 int rc; 3330 int i, hbq_count; 3331 3332 /* Before proceed, wait for POST done and device ready */ 3333 rc = lpfc_sli4_post_status_check(phba); 3334 if (rc) 3335 return -ENODEV; 3336 3337 /* 3338 * Initialize timers used by driver 3339 */ 3340 3341 /* Heartbeat timer */ 3342 init_timer(&phba->hb_tmofunc); 3343 phba->hb_tmofunc.function = lpfc_hb_timeout; 3344 phba->hb_tmofunc.data = (unsigned long)phba; 3345 3346 psli = &phba->sli; 3347 /* MBOX heartbeat timer */ 3348 init_timer(&psli->mbox_tmo); 3349 psli->mbox_tmo.function = lpfc_mbox_timeout; 3350 psli->mbox_tmo.data = (unsigned long) phba; 3351 /* Fabric block timer */ 3352 init_timer(&phba->fabric_block_timer); 3353 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3354 phba->fabric_block_timer.data = (unsigned long) phba; 3355 /* EA polling mode timer */ 3356 init_timer(&phba->eratt_poll); 3357 phba->eratt_poll.function = lpfc_poll_eratt; 3358 phba->eratt_poll.data = (unsigned long) phba; 3359 /* 3360 * We need to do a READ_CONFIG mailbox command here before 3361 * calling lpfc_get_cfgparam. For VFs this will report the 3362 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 3363 * All of the resources allocated 3364 * for this Port are tied to these values. 3365 */ 3366 /* Get all the module params for configuring this host */ 3367 lpfc_get_cfgparam(phba); 3368 phba->max_vpi = LPFC_MAX_VPI; 3369 /* This will be set to correct value after the read_config mbox */ 3370 phba->max_vports = 0; 3371 3372 /* Program the default value of vlan_id and fc_map */ 3373 phba->valid_vlan = 0; 3374 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 3375 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 3376 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 3377 3378 /* 3379 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3380 * used to create the sg_dma_buf_pool must be dynamically calculated. 3381 * 2 segments are added since the IOCB needs a command and response bde. 3382 * To insure that the scsi sgl does not cross a 4k page boundary only 3383 * sgl sizes of 1k, 2k, 4k, and 8k are supported. 3384 * Table of sgl sizes and seg_cnt: 3385 * sgl size, sg_seg_cnt total seg 3386 * 1k 50 52 3387 * 2k 114 116 3388 * 4k 242 244 3389 * 8k 498 500 3390 * cmd(32) + rsp(160) + (52 * sizeof(sli4_sge)) = 1024 3391 * cmd(32) + rsp(160) + (116 * sizeof(sli4_sge)) = 2048 3392 * cmd(32) + rsp(160) + (244 * sizeof(sli4_sge)) = 4096 3393 * cmd(32) + rsp(160) + (500 * sizeof(sli4_sge)) = 8192 3394 */ 3395 if (phba->cfg_sg_seg_cnt <= LPFC_DEFAULT_SG_SEG_CNT) 3396 phba->cfg_sg_seg_cnt = 50; 3397 else if (phba->cfg_sg_seg_cnt <= 114) 3398 phba->cfg_sg_seg_cnt = 114; 3399 else if (phba->cfg_sg_seg_cnt <= 242) 3400 phba->cfg_sg_seg_cnt = 242; 3401 else 3402 phba->cfg_sg_seg_cnt = 498; 3403 3404 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) 3405 + sizeof(struct fcp_rsp); 3406 phba->cfg_sg_dma_buf_size += 3407 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)); 3408 3409 /* Initialize buffer queue management fields */ 3410 hbq_count = lpfc_sli_hbq_count(); 3411 for (i = 0; i < hbq_count; ++i) 3412 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 3413 INIT_LIST_HEAD(&phba->rb_pend_list); 3414 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 3415 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 3416 3417 /* 3418 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 3419 */ 3420 /* Initialize the Abort scsi buffer list used by driver */ 3421 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 3422 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 3423 /* This abort list used by worker thread */ 3424 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 3425 3426 /* 3427 * Initialize dirver internal slow-path work queues 3428 */ 3429 3430 /* Driver internel slow-path CQ Event pool */ 3431 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 3432 /* Response IOCB work queue list */ 3433 INIT_LIST_HEAD(&phba->sli4_hba.sp_rspiocb_work_queue); 3434 /* Asynchronous event CQ Event work queue list */ 3435 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 3436 /* Fast-path XRI aborted CQ Event work queue list */ 3437 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 3438 /* Slow-path XRI aborted CQ Event work queue list */ 3439 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 3440 /* Receive queue CQ Event work queue list */ 3441 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 3442 3443 /* Initialize the driver internal SLI layer lists. */ 3444 lpfc_sli_setup(phba); 3445 lpfc_sli_queue_setup(phba); 3446 3447 /* Allocate device driver memory */ 3448 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 3449 if (rc) 3450 return -ENOMEM; 3451 3452 /* Create the bootstrap mailbox command */ 3453 rc = lpfc_create_bootstrap_mbox(phba); 3454 if (unlikely(rc)) 3455 goto out_free_mem; 3456 3457 /* Set up the host's endian order with the device. */ 3458 rc = lpfc_setup_endian_order(phba); 3459 if (unlikely(rc)) 3460 goto out_free_bsmbx; 3461 3462 /* Set up the hba's configuration parameters. */ 3463 rc = lpfc_sli4_read_config(phba); 3464 if (unlikely(rc)) 3465 goto out_free_bsmbx; 3466 3467 /* Perform a function reset */ 3468 rc = lpfc_pci_function_reset(phba); 3469 if (unlikely(rc)) 3470 goto out_free_bsmbx; 3471 3472 /* Create all the SLI4 queues */ 3473 rc = lpfc_sli4_queue_create(phba); 3474 if (rc) 3475 goto out_free_bsmbx; 3476 3477 /* Create driver internal CQE event pool */ 3478 rc = lpfc_sli4_cq_event_pool_create(phba); 3479 if (rc) 3480 goto out_destroy_queue; 3481 3482 /* Initialize and populate the iocb list per host */ 3483 rc = lpfc_init_sgl_list(phba); 3484 if (rc) { 3485 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3486 "1400 Failed to initialize sgl list.\n"); 3487 goto out_destroy_cq_event_pool; 3488 } 3489 rc = lpfc_init_active_sgl_array(phba); 3490 if (rc) { 3491 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3492 "1430 Failed to initialize sgl list.\n"); 3493 goto out_free_sgl_list; 3494 } 3495 3496 rc = lpfc_sli4_init_rpi_hdrs(phba); 3497 if (rc) { 3498 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3499 "1432 Failed to initialize rpi headers.\n"); 3500 goto out_free_active_sgl; 3501 } 3502 3503 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 3504 phba->cfg_fcp_eq_count), GFP_KERNEL); 3505 if (!phba->sli4_hba.fcp_eq_hdl) { 3506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3507 "2572 Failed allocate memory for fast-path " 3508 "per-EQ handle array\n"); 3509 goto out_remove_rpi_hdrs; 3510 } 3511 3512 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 3513 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 3514 if (!phba->sli4_hba.msix_entries) { 3515 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3516 "2573 Failed allocate memory for msi-x " 3517 "interrupt vector entries\n"); 3518 goto out_free_fcp_eq_hdl; 3519 } 3520 3521 return rc; 3522 3523out_free_fcp_eq_hdl: 3524 kfree(phba->sli4_hba.fcp_eq_hdl); 3525out_remove_rpi_hdrs: 3526 lpfc_sli4_remove_rpi_hdrs(phba); 3527out_free_active_sgl: 3528 lpfc_free_active_sgl(phba); 3529out_free_sgl_list: 3530 lpfc_free_sgl_list(phba); 3531out_destroy_cq_event_pool: 3532 lpfc_sli4_cq_event_pool_destroy(phba); 3533out_destroy_queue: 3534 lpfc_sli4_queue_destroy(phba); 3535out_free_bsmbx: 3536 lpfc_destroy_bootstrap_mbox(phba); 3537out_free_mem: 3538 lpfc_mem_free(phba); 3539 return rc; 3540} 3541 3542/** 3543 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 3544 * @phba: pointer to lpfc hba data structure. 3545 * 3546 * This routine is invoked to unset the driver internal resources set up 3547 * specific for supporting the SLI-4 HBA device it attached to. 3548 **/ 3549static void 3550lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 3551{ 3552 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 3553 3554 /* unregister default FCFI from the HBA */ 3555 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi); 3556 3557 /* Free the default FCR table */ 3558 lpfc_sli_remove_dflt_fcf(phba); 3559 3560 /* Free memory allocated for msi-x interrupt vector entries */ 3561 kfree(phba->sli4_hba.msix_entries); 3562 3563 /* Free memory allocated for fast-path work queue handles */ 3564 kfree(phba->sli4_hba.fcp_eq_hdl); 3565 3566 /* Free the allocated rpi headers. */ 3567 lpfc_sli4_remove_rpi_hdrs(phba); 3568 lpfc_sli4_remove_rpis(phba); 3569 3570 /* Free the ELS sgl list */ 3571 lpfc_free_active_sgl(phba); 3572 lpfc_free_sgl_list(phba); 3573 3574 /* Free the SCSI sgl management array */ 3575 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 3576 3577 /* Free the SLI4 queues */ 3578 lpfc_sli4_queue_destroy(phba); 3579 3580 /* Free the completion queue EQ event pool */ 3581 lpfc_sli4_cq_event_release_all(phba); 3582 lpfc_sli4_cq_event_pool_destroy(phba); 3583 3584 /* Reset SLI4 HBA FCoE function */ 3585 lpfc_pci_function_reset(phba); 3586 3587 /* Free the bsmbx region. */ 3588 lpfc_destroy_bootstrap_mbox(phba); 3589 3590 /* Free the SLI Layer memory with SLI4 HBAs */ 3591 lpfc_mem_free_all(phba); 3592 3593 /* Free the current connect table */ 3594 list_for_each_entry_safe(conn_entry, next_conn_entry, 3595 &phba->fcf_conn_rec_list, list) 3596 kfree(conn_entry); 3597 3598 return; 3599} 3600 3601/** 3602 * lpfc_init_api_table_setup - Set up init api fucntion jump table 3603 * @phba: The hba struct for which this call is being executed. 3604 * @dev_grp: The HBA PCI-Device group number. 3605 * 3606 * This routine sets up the device INIT interface API function jump table 3607 * in @phba struct. 3608 * 3609 * Returns: 0 - success, -ENODEV - failure. 3610 **/ 3611int 3612lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3613{ 3614 switch (dev_grp) { 3615 case LPFC_PCI_DEV_LP: 3616 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 3617 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 3618 phba->lpfc_stop_port = lpfc_stop_port_s3; 3619 break; 3620 case LPFC_PCI_DEV_OC: 3621 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 3622 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 3623 phba->lpfc_stop_port = lpfc_stop_port_s4; 3624 break; 3625 default: 3626 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3627 "1431 Invalid HBA PCI-device group: 0x%x\n", 3628 dev_grp); 3629 return -ENODEV; 3630 break; 3631 } 3632 return 0; 3633} 3634 3635/** 3636 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 3637 * @phba: pointer to lpfc hba data structure. 3638 * 3639 * This routine is invoked to set up the driver internal resources before the 3640 * device specific resource setup to support the HBA device it attached to. 3641 * 3642 * Return codes 3643 * 0 - sucessful 3644 * other values - error 3645 **/ 3646static int 3647lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 3648{ 3649 /* 3650 * Driver resources common to all SLI revisions 3651 */ 3652 atomic_set(&phba->fast_event_count, 0); 3653 spin_lock_init(&phba->hbalock); 3654 3655 /* Initialize ndlp management spinlock */ 3656 spin_lock_init(&phba->ndlp_lock); 3657 3658 INIT_LIST_HEAD(&phba->port_list); 3659 INIT_LIST_HEAD(&phba->work_list); 3660 init_waitqueue_head(&phba->wait_4_mlo_m_q); 3661 3662 /* Initialize the wait queue head for the kernel thread */ 3663 init_waitqueue_head(&phba->work_waitq); 3664 3665 /* Initialize the scsi buffer list used by driver for scsi IO */ 3666 spin_lock_init(&phba->scsi_buf_list_lock); 3667 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 3668 3669 /* Initialize the fabric iocb list */ 3670 INIT_LIST_HEAD(&phba->fabric_iocb_list); 3671 3672 /* Initialize list to save ELS buffers */ 3673 INIT_LIST_HEAD(&phba->elsbuf); 3674 3675 /* Initialize FCF connection rec list */ 3676 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 3677 3678 return 0; 3679} 3680 3681/** 3682 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 3683 * @phba: pointer to lpfc hba data structure. 3684 * 3685 * This routine is invoked to set up the driver internal resources after the 3686 * device specific resource setup to support the HBA device it attached to. 3687 * 3688 * Return codes 3689 * 0 - sucessful 3690 * other values - error 3691 **/ 3692static int 3693lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 3694{ 3695 int error; 3696 3697 /* Startup the kernel thread for this host adapter. */ 3698 phba->worker_thread = kthread_run(lpfc_do_work, phba, 3699 "lpfc_worker_%d", phba->brd_no); 3700 if (IS_ERR(phba->worker_thread)) { 3701 error = PTR_ERR(phba->worker_thread); 3702 return error; 3703 } 3704 3705 return 0; 3706} 3707 3708/** 3709 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 3710 * @phba: pointer to lpfc hba data structure. 3711 * 3712 * This routine is invoked to unset the driver internal resources set up after 3713 * the device specific resource setup for supporting the HBA device it 3714 * attached to. 3715 **/ 3716static void 3717lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 3718{ 3719 /* Stop kernel worker thread */ 3720 kthread_stop(phba->worker_thread); 3721} 3722 3723/** 3724 * lpfc_free_iocb_list - Free iocb list. 3725 * @phba: pointer to lpfc hba data structure. 3726 * 3727 * This routine is invoked to free the driver's IOCB list and memory. 3728 **/ 3729static void 3730lpfc_free_iocb_list(struct lpfc_hba *phba) 3731{ 3732 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 3733 3734 spin_lock_irq(&phba->hbalock); 3735 list_for_each_entry_safe(iocbq_entry, iocbq_next, 3736 &phba->lpfc_iocb_list, list) { 3737 list_del(&iocbq_entry->list); 3738 kfree(iocbq_entry); 3739 phba->total_iocbq_bufs--; 3740 } 3741 spin_unlock_irq(&phba->hbalock); 3742 3743 return; 3744} 3745 3746/** 3747 * lpfc_init_iocb_list - Allocate and initialize iocb list. 3748 * @phba: pointer to lpfc hba data structure. 3749 * 3750 * This routine is invoked to allocate and initizlize the driver's IOCB 3751 * list and set up the IOCB tag array accordingly. 3752 * 3753 * Return codes 3754 * 0 - sucessful 3755 * other values - error 3756 **/ 3757static int 3758lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 3759{ 3760 struct lpfc_iocbq *iocbq_entry = NULL; 3761 uint16_t iotag; 3762 int i; 3763 3764 /* Initialize and populate the iocb list per host. */ 3765 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 3766 for (i = 0; i < iocb_count; i++) { 3767 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 3768 if (iocbq_entry == NULL) { 3769 printk(KERN_ERR "%s: only allocated %d iocbs of " 3770 "expected %d count. Unloading driver.\n", 3771 __func__, i, LPFC_IOCB_LIST_CNT); 3772 goto out_free_iocbq; 3773 } 3774 3775 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 3776 if (iotag == 0) { 3777 kfree(iocbq_entry); 3778 printk(KERN_ERR "%s: failed to allocate IOTAG. " 3779 "Unloading driver.\n", __func__); 3780 goto out_free_iocbq; 3781 } 3782 iocbq_entry->sli4_xritag = NO_XRI; 3783 3784 spin_lock_irq(&phba->hbalock); 3785 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 3786 phba->total_iocbq_bufs++; 3787 spin_unlock_irq(&phba->hbalock); 3788 } 3789 3790 return 0; 3791 3792out_free_iocbq: 3793 lpfc_free_iocb_list(phba); 3794 3795 return -ENOMEM; 3796} 3797 3798/** 3799 * lpfc_free_sgl_list - Free sgl list. 3800 * @phba: pointer to lpfc hba data structure. 3801 * 3802 * This routine is invoked to free the driver's sgl list and memory. 3803 **/ 3804static void 3805lpfc_free_sgl_list(struct lpfc_hba *phba) 3806{ 3807 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 3808 LIST_HEAD(sglq_list); 3809 int rc = 0; 3810 3811 spin_lock_irq(&phba->hbalock); 3812 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 3813 spin_unlock_irq(&phba->hbalock); 3814 3815 list_for_each_entry_safe(sglq_entry, sglq_next, 3816 &sglq_list, list) { 3817 list_del(&sglq_entry->list); 3818 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 3819 kfree(sglq_entry); 3820 phba->sli4_hba.total_sglq_bufs--; 3821 } 3822 rc = lpfc_sli4_remove_all_sgl_pages(phba); 3823 if (rc) { 3824 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3825 "2005 Unable to deregister pages from HBA: %x", rc); 3826 } 3827 kfree(phba->sli4_hba.lpfc_els_sgl_array); 3828} 3829 3830/** 3831 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 3832 * @phba: pointer to lpfc hba data structure. 3833 * 3834 * This routine is invoked to allocate the driver's active sgl memory. 3835 * This array will hold the sglq_entry's for active IOs. 3836 **/ 3837static int 3838lpfc_init_active_sgl_array(struct lpfc_hba *phba) 3839{ 3840 int size; 3841 size = sizeof(struct lpfc_sglq *); 3842 size *= phba->sli4_hba.max_cfg_param.max_xri; 3843 3844 phba->sli4_hba.lpfc_sglq_active_list = 3845 kzalloc(size, GFP_KERNEL); 3846 if (!phba->sli4_hba.lpfc_sglq_active_list) 3847 return -ENOMEM; 3848 return 0; 3849} 3850 3851/** 3852 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 3853 * @phba: pointer to lpfc hba data structure. 3854 * 3855 * This routine is invoked to walk through the array of active sglq entries 3856 * and free all of the resources. 3857 * This is just a place holder for now. 3858 **/ 3859static void 3860lpfc_free_active_sgl(struct lpfc_hba *phba) 3861{ 3862 kfree(phba->sli4_hba.lpfc_sglq_active_list); 3863} 3864 3865/** 3866 * lpfc_init_sgl_list - Allocate and initialize sgl list. 3867 * @phba: pointer to lpfc hba data structure. 3868 * 3869 * This routine is invoked to allocate and initizlize the driver's sgl 3870 * list and set up the sgl xritag tag array accordingly. 3871 * 3872 * Return codes 3873 * 0 - sucessful 3874 * other values - error 3875 **/ 3876static int 3877lpfc_init_sgl_list(struct lpfc_hba *phba) 3878{ 3879 struct lpfc_sglq *sglq_entry = NULL; 3880 int i; 3881 int els_xri_cnt; 3882 3883 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3884 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3885 "2400 lpfc_init_sgl_list els %d.\n", 3886 els_xri_cnt); 3887 /* Initialize and populate the sglq list per host/VF. */ 3888 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 3889 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 3890 3891 /* Sanity check on XRI management */ 3892 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 3893 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3894 "2562 No room left for SCSI XRI allocation: " 3895 "max_xri=%d, els_xri=%d\n", 3896 phba->sli4_hba.max_cfg_param.max_xri, 3897 els_xri_cnt); 3898 return -ENOMEM; 3899 } 3900 3901 /* Allocate memory for the ELS XRI management array */ 3902 phba->sli4_hba.lpfc_els_sgl_array = 3903 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 3904 GFP_KERNEL); 3905 3906 if (!phba->sli4_hba.lpfc_els_sgl_array) { 3907 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3908 "2401 Failed to allocate memory for ELS " 3909 "XRI management array of size %d.\n", 3910 els_xri_cnt); 3911 return -ENOMEM; 3912 } 3913 3914 /* Keep the SCSI XRI into the XRI management array */ 3915 phba->sli4_hba.scsi_xri_max = 3916 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3917 phba->sli4_hba.scsi_xri_cnt = 0; 3918 3919 phba->sli4_hba.lpfc_scsi_psb_array = 3920 kzalloc((sizeof(struct lpfc_scsi_buf *) * 3921 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 3922 3923 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 3924 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3925 "2563 Failed to allocate memory for SCSI " 3926 "XRI management array of size %d.\n", 3927 phba->sli4_hba.scsi_xri_max); 3928 kfree(phba->sli4_hba.lpfc_els_sgl_array); 3929 return -ENOMEM; 3930 } 3931 3932 for (i = 0; i < els_xri_cnt; i++) { 3933 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 3934 if (sglq_entry == NULL) { 3935 printk(KERN_ERR "%s: only allocated %d sgls of " 3936 "expected %d count. Unloading driver.\n", 3937 __func__, i, els_xri_cnt); 3938 goto out_free_mem; 3939 } 3940 3941 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba); 3942 if (sglq_entry->sli4_xritag == NO_XRI) { 3943 kfree(sglq_entry); 3944 printk(KERN_ERR "%s: failed to allocate XRI.\n" 3945 "Unloading driver.\n", __func__); 3946 goto out_free_mem; 3947 } 3948 sglq_entry->buff_type = GEN_BUFF_TYPE; 3949 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 3950 if (sglq_entry->virt == NULL) { 3951 kfree(sglq_entry); 3952 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 3953 "Unloading driver.\n", __func__); 3954 goto out_free_mem; 3955 } 3956 sglq_entry->sgl = sglq_entry->virt; 3957 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 3958 3959 /* The list order is used by later block SGL registraton */ 3960 spin_lock_irq(&phba->hbalock); 3961 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 3962 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 3963 phba->sli4_hba.total_sglq_bufs++; 3964 spin_unlock_irq(&phba->hbalock); 3965 } 3966 return 0; 3967 3968out_free_mem: 3969 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 3970 lpfc_free_sgl_list(phba); 3971 return -ENOMEM; 3972} 3973 3974/** 3975 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 3976 * @phba: pointer to lpfc hba data structure. 3977 * 3978 * This routine is invoked to post rpi header templates to the 3979 * HBA consistent with the SLI-4 interface spec. This routine 3980 * posts a PAGE_SIZE memory region to the port to hold up to 3981 * PAGE_SIZE modulo 64 rpi context headers. 3982 * No locks are held here because this is an initialization routine 3983 * called only from probe or lpfc_online when interrupts are not 3984 * enabled and the driver is reinitializing the device. 3985 * 3986 * Return codes 3987 * 0 - sucessful 3988 * ENOMEM - No availble memory 3989 * EIO - The mailbox failed to complete successfully. 3990 **/ 3991int 3992lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 3993{ 3994 int rc = 0; 3995 int longs; 3996 uint16_t rpi_count; 3997 struct lpfc_rpi_hdr *rpi_hdr; 3998 3999 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 4000 4001 /* 4002 * Provision an rpi bitmask range for discovery. The total count 4003 * is the difference between max and base + 1. 4004 */ 4005 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base + 4006 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4007 4008 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG; 4009 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long), 4010 GFP_KERNEL); 4011 if (!phba->sli4_hba.rpi_bmask) 4012 return -ENOMEM; 4013 4014 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 4015 if (!rpi_hdr) { 4016 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 4017 "0391 Error during rpi post operation\n"); 4018 lpfc_sli4_remove_rpis(phba); 4019 rc = -ENODEV; 4020 } 4021 4022 return rc; 4023} 4024 4025/** 4026 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 4027 * @phba: pointer to lpfc hba data structure. 4028 * 4029 * This routine is invoked to allocate a single 4KB memory region to 4030 * support rpis and stores them in the phba. This single region 4031 * provides support for up to 64 rpis. The region is used globally 4032 * by the device. 4033 * 4034 * Returns: 4035 * A valid rpi hdr on success. 4036 * A NULL pointer on any failure. 4037 **/ 4038struct lpfc_rpi_hdr * 4039lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 4040{ 4041 uint16_t rpi_limit, curr_rpi_range; 4042 struct lpfc_dmabuf *dmabuf; 4043 struct lpfc_rpi_hdr *rpi_hdr; 4044 4045 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 4046 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4047 4048 spin_lock_irq(&phba->hbalock); 4049 curr_rpi_range = phba->sli4_hba.next_rpi; 4050 spin_unlock_irq(&phba->hbalock); 4051 4052 /* 4053 * The port has a limited number of rpis. The increment here 4054 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 4055 * and to allow the full max_rpi range per port. 4056 */ 4057 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 4058 return NULL; 4059 4060 /* 4061 * First allocate the protocol header region for the port. The 4062 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 4063 */ 4064 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4065 if (!dmabuf) 4066 return NULL; 4067 4068 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4069 LPFC_HDR_TEMPLATE_SIZE, 4070 &dmabuf->phys, 4071 GFP_KERNEL); 4072 if (!dmabuf->virt) { 4073 rpi_hdr = NULL; 4074 goto err_free_dmabuf; 4075 } 4076 4077 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 4078 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 4079 rpi_hdr = NULL; 4080 goto err_free_coherent; 4081 } 4082 4083 /* Save the rpi header data for cleanup later. */ 4084 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 4085 if (!rpi_hdr) 4086 goto err_free_coherent; 4087 4088 rpi_hdr->dmabuf = dmabuf; 4089 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 4090 rpi_hdr->page_count = 1; 4091 spin_lock_irq(&phba->hbalock); 4092 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi; 4093 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 4094 4095 /* 4096 * The next_rpi stores the next module-64 rpi value to post 4097 * in any subsequent rpi memory region postings. 4098 */ 4099 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT; 4100 spin_unlock_irq(&phba->hbalock); 4101 return rpi_hdr; 4102 4103 err_free_coherent: 4104 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 4105 dmabuf->virt, dmabuf->phys); 4106 err_free_dmabuf: 4107 kfree(dmabuf); 4108 return NULL; 4109} 4110 4111/** 4112 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 4113 * @phba: pointer to lpfc hba data structure. 4114 * 4115 * This routine is invoked to remove all memory resources allocated 4116 * to support rpis. This routine presumes the caller has released all 4117 * rpis consumed by fabric or port logins and is prepared to have 4118 * the header pages removed. 4119 **/ 4120void 4121lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 4122{ 4123 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 4124 4125 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 4126 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 4127 list_del(&rpi_hdr->list); 4128 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 4129 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 4130 kfree(rpi_hdr->dmabuf); 4131 kfree(rpi_hdr); 4132 } 4133 4134 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4135 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask)); 4136} 4137 4138/** 4139 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 4140 * @pdev: pointer to pci device data structure. 4141 * 4142 * This routine is invoked to allocate the driver hba data structure for an 4143 * HBA device. If the allocation is successful, the phba reference to the 4144 * PCI device data structure is set. 4145 * 4146 * Return codes 4147 * pointer to @phba - sucessful 4148 * NULL - error 4149 **/ 4150static struct lpfc_hba * 4151lpfc_hba_alloc(struct pci_dev *pdev) 4152{ 4153 struct lpfc_hba *phba; 4154 4155 /* Allocate memory for HBA structure */ 4156 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 4157 if (!phba) { 4158 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 4159 return NULL; 4160 } 4161 4162 /* Set reference to PCI device in HBA structure */ 4163 phba->pcidev = pdev; 4164 4165 /* Assign an unused board number */ 4166 phba->brd_no = lpfc_get_instance(); 4167 if (phba->brd_no < 0) { 4168 kfree(phba); 4169 return NULL; 4170 } 4171 4172 return phba; 4173} 4174 4175/** 4176 * lpfc_hba_free - Free driver hba data structure with a device. 4177 * @phba: pointer to lpfc hba data structure. 4178 * 4179 * This routine is invoked to free the driver hba data structure with an 4180 * HBA device. 4181 **/ 4182static void 4183lpfc_hba_free(struct lpfc_hba *phba) 4184{ 4185 /* Release the driver assigned board number */ 4186 idr_remove(&lpfc_hba_index, phba->brd_no); 4187 4188 kfree(phba); 4189 return; 4190} 4191 4192/** 4193 * lpfc_create_shost - Create hba physical port with associated scsi host. 4194 * @phba: pointer to lpfc hba data structure. 4195 * 4196 * This routine is invoked to create HBA physical port and associate a SCSI 4197 * host with it. 4198 * 4199 * Return codes 4200 * 0 - sucessful 4201 * other values - error 4202 **/ 4203static int 4204lpfc_create_shost(struct lpfc_hba *phba) 4205{ 4206 struct lpfc_vport *vport; 4207 struct Scsi_Host *shost; 4208 4209 /* Initialize HBA FC structure */ 4210 phba->fc_edtov = FF_DEF_EDTOV; 4211 phba->fc_ratov = FF_DEF_RATOV; 4212 phba->fc_altov = FF_DEF_ALTOV; 4213 phba->fc_arbtov = FF_DEF_ARBTOV; 4214 4215 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 4216 if (!vport) 4217 return -ENODEV; 4218 4219 shost = lpfc_shost_from_vport(vport); 4220 phba->pport = vport; 4221 lpfc_debugfs_initialize(vport); 4222 /* Put reference to SCSI host to driver's device private data */ 4223 pci_set_drvdata(phba->pcidev, shost); 4224 4225 return 0; 4226} 4227 4228/** 4229 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 4230 * @phba: pointer to lpfc hba data structure. 4231 * 4232 * This routine is invoked to destroy HBA physical port and the associated 4233 * SCSI host. 4234 **/ 4235static void 4236lpfc_destroy_shost(struct lpfc_hba *phba) 4237{ 4238 struct lpfc_vport *vport = phba->pport; 4239 4240 /* Destroy physical port that associated with the SCSI host */ 4241 destroy_port(vport); 4242 4243 return; 4244} 4245 4246/** 4247 * lpfc_setup_bg - Setup Block guard structures and debug areas. 4248 * @phba: pointer to lpfc hba data structure. 4249 * @shost: the shost to be used to detect Block guard settings. 4250 * 4251 * This routine sets up the local Block guard protocol settings for @shost. 4252 * This routine also allocates memory for debugging bg buffers. 4253 **/ 4254static void 4255lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 4256{ 4257 int pagecnt = 10; 4258 if (lpfc_prot_mask && lpfc_prot_guard) { 4259 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4260 "1478 Registering BlockGuard with the " 4261 "SCSI layer\n"); 4262 scsi_host_set_prot(shost, lpfc_prot_mask); 4263 scsi_host_set_guard(shost, lpfc_prot_guard); 4264 } 4265 if (!_dump_buf_data) { 4266 while (pagecnt) { 4267 spin_lock_init(&_dump_buf_lock); 4268 _dump_buf_data = 4269 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4270 if (_dump_buf_data) { 4271 printk(KERN_ERR "BLKGRD allocated %d pages for " 4272 "_dump_buf_data at 0x%p\n", 4273 (1 << pagecnt), _dump_buf_data); 4274 _dump_buf_data_order = pagecnt; 4275 memset(_dump_buf_data, 0, 4276 ((1 << PAGE_SHIFT) << pagecnt)); 4277 break; 4278 } else 4279 --pagecnt; 4280 } 4281 if (!_dump_buf_data_order) 4282 printk(KERN_ERR "BLKGRD ERROR unable to allocate " 4283 "memory for hexdump\n"); 4284 } else 4285 printk(KERN_ERR "BLKGRD already allocated _dump_buf_data=0x%p" 4286 "\n", _dump_buf_data); 4287 if (!_dump_buf_dif) { 4288 while (pagecnt) { 4289 _dump_buf_dif = 4290 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4291 if (_dump_buf_dif) { 4292 printk(KERN_ERR "BLKGRD allocated %d pages for " 4293 "_dump_buf_dif at 0x%p\n", 4294 (1 << pagecnt), _dump_buf_dif); 4295 _dump_buf_dif_order = pagecnt; 4296 memset(_dump_buf_dif, 0, 4297 ((1 << PAGE_SHIFT) << pagecnt)); 4298 break; 4299 } else 4300 --pagecnt; 4301 } 4302 if (!_dump_buf_dif_order) 4303 printk(KERN_ERR "BLKGRD ERROR unable to allocate " 4304 "memory for hexdump\n"); 4305 } else 4306 printk(KERN_ERR "BLKGRD already allocated _dump_buf_dif=0x%p\n", 4307 _dump_buf_dif); 4308} 4309 4310/** 4311 * lpfc_post_init_setup - Perform necessary device post initialization setup. 4312 * @phba: pointer to lpfc hba data structure. 4313 * 4314 * This routine is invoked to perform all the necessary post initialization 4315 * setup for the device. 4316 **/ 4317static void 4318lpfc_post_init_setup(struct lpfc_hba *phba) 4319{ 4320 struct Scsi_Host *shost; 4321 struct lpfc_adapter_event_header adapter_event; 4322 4323 /* Get the default values for Model Name and Description */ 4324 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 4325 4326 /* 4327 * hba setup may have changed the hba_queue_depth so we need to 4328 * adjust the value of can_queue. 4329 */ 4330 shost = pci_get_drvdata(phba->pcidev); 4331 shost->can_queue = phba->cfg_hba_queue_depth - 10; 4332 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 4333 lpfc_setup_bg(phba, shost); 4334 4335 lpfc_host_attrib_init(shost); 4336 4337 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 4338 spin_lock_irq(shost->host_lock); 4339 lpfc_poll_start_timer(phba); 4340 spin_unlock_irq(shost->host_lock); 4341 } 4342 4343 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4344 "0428 Perform SCSI scan\n"); 4345 /* Send board arrival event to upper layer */ 4346 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 4347 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 4348 fc_host_post_vendor_event(shost, fc_get_event_number(), 4349 sizeof(adapter_event), 4350 (char *) &adapter_event, 4351 LPFC_NL_VENDOR_ID); 4352 return; 4353} 4354 4355/** 4356 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 4357 * @phba: pointer to lpfc hba data structure. 4358 * 4359 * This routine is invoked to set up the PCI device memory space for device 4360 * with SLI-3 interface spec. 4361 * 4362 * Return codes 4363 * 0 - sucessful 4364 * other values - error 4365 **/ 4366static int 4367lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 4368{ 4369 struct pci_dev *pdev; 4370 unsigned long bar0map_len, bar2map_len; 4371 int i, hbq_count; 4372 void *ptr; 4373 int error = -ENODEV; 4374 4375 /* Obtain PCI device reference */ 4376 if (!phba->pcidev) 4377 return error; 4378 else 4379 pdev = phba->pcidev; 4380 4381 /* Set the device DMA mask size */ 4382 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) 4383 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) 4384 return error; 4385 4386 /* Get the bus address of Bar0 and Bar2 and the number of bytes 4387 * required by each mapping. 4388 */ 4389 phba->pci_bar0_map = pci_resource_start(pdev, 0); 4390 bar0map_len = pci_resource_len(pdev, 0); 4391 4392 phba->pci_bar2_map = pci_resource_start(pdev, 2); 4393 bar2map_len = pci_resource_len(pdev, 2); 4394 4395 /* Map HBA SLIM to a kernel virtual address. */ 4396 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 4397 if (!phba->slim_memmap_p) { 4398 dev_printk(KERN_ERR, &pdev->dev, 4399 "ioremap failed for SLIM memory.\n"); 4400 goto out; 4401 } 4402 4403 /* Map HBA Control Registers to a kernel virtual address. */ 4404 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 4405 if (!phba->ctrl_regs_memmap_p) { 4406 dev_printk(KERN_ERR, &pdev->dev, 4407 "ioremap failed for HBA control registers.\n"); 4408 goto out_iounmap_slim; 4409 } 4410 4411 /* Allocate memory for SLI-2 structures */ 4412 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 4413 SLI2_SLIM_SIZE, 4414 &phba->slim2p.phys, 4415 GFP_KERNEL); 4416 if (!phba->slim2p.virt) 4417 goto out_iounmap; 4418 4419 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 4420 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 4421 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 4422 phba->IOCBs = (phba->slim2p.virt + 4423 offsetof(struct lpfc_sli2_slim, IOCBs)); 4424 4425 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 4426 lpfc_sli_hbq_size(), 4427 &phba->hbqslimp.phys, 4428 GFP_KERNEL); 4429 if (!phba->hbqslimp.virt) 4430 goto out_free_slim; 4431 4432 hbq_count = lpfc_sli_hbq_count(); 4433 ptr = phba->hbqslimp.virt; 4434 for (i = 0; i < hbq_count; ++i) { 4435 phba->hbqs[i].hbq_virt = ptr; 4436 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4437 ptr += (lpfc_hbq_defs[i]->entry_count * 4438 sizeof(struct lpfc_hbq_entry)); 4439 } 4440 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 4441 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 4442 4443 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 4444 4445 INIT_LIST_HEAD(&phba->rb_pend_list); 4446 4447 phba->MBslimaddr = phba->slim_memmap_p; 4448 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 4449 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 4450 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 4451 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 4452 4453 return 0; 4454 4455out_free_slim: 4456 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 4457 phba->slim2p.virt, phba->slim2p.phys); 4458out_iounmap: 4459 iounmap(phba->ctrl_regs_memmap_p); 4460out_iounmap_slim: 4461 iounmap(phba->slim_memmap_p); 4462out: 4463 return error; 4464} 4465 4466/** 4467 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 4468 * @phba: pointer to lpfc hba data structure. 4469 * 4470 * This routine is invoked to unset the PCI device memory space for device 4471 * with SLI-3 interface spec. 4472 **/ 4473static void 4474lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 4475{ 4476 struct pci_dev *pdev; 4477 4478 /* Obtain PCI device reference */ 4479 if (!phba->pcidev) 4480 return; 4481 else 4482 pdev = phba->pcidev; 4483 4484 /* Free coherent DMA memory allocated */ 4485 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 4486 phba->hbqslimp.virt, phba->hbqslimp.phys); 4487 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 4488 phba->slim2p.virt, phba->slim2p.phys); 4489 4490 /* I/O memory unmap */ 4491 iounmap(phba->ctrl_regs_memmap_p); 4492 iounmap(phba->slim_memmap_p); 4493 4494 return; 4495} 4496 4497/** 4498 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 4499 * @phba: pointer to lpfc hba data structure. 4500 * 4501 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 4502 * done and check status. 4503 * 4504 * Return 0 if successful, otherwise -ENODEV. 4505 **/ 4506int 4507lpfc_sli4_post_status_check(struct lpfc_hba *phba) 4508{ 4509 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg, scratchpad; 4510 uint32_t onlnreg0, onlnreg1; 4511 int i, port_error = -ENODEV; 4512 4513 if (!phba->sli4_hba.STAregaddr) 4514 return -ENODEV; 4515 4516 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 4517 for (i = 0; i < 3000; i++) { 4518 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr); 4519 /* Encounter fatal POST error, break out */ 4520 if (bf_get(lpfc_hst_state_perr, &sta_reg)) { 4521 port_error = -ENODEV; 4522 break; 4523 } 4524 if (LPFC_POST_STAGE_ARMFW_READY == 4525 bf_get(lpfc_hst_state_port_status, &sta_reg)) { 4526 port_error = 0; 4527 break; 4528 } 4529 msleep(10); 4530 } 4531 4532 if (port_error) 4533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4534 "1408 Failure HBA POST Status: sta_reg=0x%x, " 4535 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, " 4536 "dl=x%x, pstatus=x%x\n", sta_reg.word0, 4537 bf_get(lpfc_hst_state_perr, &sta_reg), 4538 bf_get(lpfc_hst_state_sfi, &sta_reg), 4539 bf_get(lpfc_hst_state_nip, &sta_reg), 4540 bf_get(lpfc_hst_state_ipc, &sta_reg), 4541 bf_get(lpfc_hst_state_xrom, &sta_reg), 4542 bf_get(lpfc_hst_state_dl, &sta_reg), 4543 bf_get(lpfc_hst_state_port_status, &sta_reg)); 4544 4545 /* Log device information */ 4546 scratchpad.word0 = readl(phba->sli4_hba.SCRATCHPADregaddr); 4547 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4548 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, " 4549 "FeatureL1=0x%x, FeatureL2=0x%x\n", 4550 bf_get(lpfc_scratchpad_chiptype, &scratchpad), 4551 bf_get(lpfc_scratchpad_slirev, &scratchpad), 4552 bf_get(lpfc_scratchpad_featurelevel1, &scratchpad), 4553 bf_get(lpfc_scratchpad_featurelevel2, &scratchpad)); 4554 4555 /* With uncoverable error, log the error message and return error */ 4556 onlnreg0 = readl(phba->sli4_hba.ONLINE0regaddr); 4557 onlnreg1 = readl(phba->sli4_hba.ONLINE1regaddr); 4558 if ((onlnreg0 != LPFC_ONLINE_NERR) || (onlnreg1 != LPFC_ONLINE_NERR)) { 4559 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr); 4560 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr); 4561 if (uerrlo_reg.word0 || uerrhi_reg.word0) { 4562 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4563 "1422 HBA Unrecoverable error: " 4564 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " 4565 "online0_reg=0x%x, online1_reg=0x%x\n", 4566 uerrlo_reg.word0, uerrhi_reg.word0, 4567 onlnreg0, onlnreg1); 4568 } 4569 return -ENODEV; 4570 } 4571 4572 return port_error; 4573} 4574 4575/** 4576 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 4577 * @phba: pointer to lpfc hba data structure. 4578 * 4579 * This routine is invoked to set up SLI4 BAR0 PCI config space register 4580 * memory map. 4581 **/ 4582static void 4583lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba) 4584{ 4585 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 4586 LPFC_UERR_STATUS_LO; 4587 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 4588 LPFC_UERR_STATUS_HI; 4589 phba->sli4_hba.ONLINE0regaddr = phba->sli4_hba.conf_regs_memmap_p + 4590 LPFC_ONLINE0; 4591 phba->sli4_hba.ONLINE1regaddr = phba->sli4_hba.conf_regs_memmap_p + 4592 LPFC_ONLINE1; 4593 phba->sli4_hba.SCRATCHPADregaddr = phba->sli4_hba.conf_regs_memmap_p + 4594 LPFC_SCRATCHPAD; 4595} 4596 4597/** 4598 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 4599 * @phba: pointer to lpfc hba data structure. 4600 * 4601 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 4602 * memory map. 4603 **/ 4604static void 4605lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 4606{ 4607 4608 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4609 LPFC_HST_STATE; 4610 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4611 LPFC_HST_ISR0; 4612 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4613 LPFC_HST_IMR0; 4614 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4615 LPFC_HST_ISCR0; 4616 return; 4617} 4618 4619/** 4620 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 4621 * @phba: pointer to lpfc hba data structure. 4622 * @vf: virtual function number 4623 * 4624 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 4625 * based on the given viftual function number, @vf. 4626 * 4627 * Return 0 if successful, otherwise -ENODEV. 4628 **/ 4629static int 4630lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 4631{ 4632 if (vf > LPFC_VIR_FUNC_MAX) 4633 return -ENODEV; 4634 4635 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4636 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 4637 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4638 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 4639 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4640 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 4641 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4642 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 4643 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4644 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 4645 return 0; 4646} 4647 4648/** 4649 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 4650 * @phba: pointer to lpfc hba data structure. 4651 * 4652 * This routine is invoked to create the bootstrap mailbox 4653 * region consistent with the SLI-4 interface spec. This 4654 * routine allocates all memory necessary to communicate 4655 * mailbox commands to the port and sets up all alignment 4656 * needs. No locks are expected to be held when calling 4657 * this routine. 4658 * 4659 * Return codes 4660 * 0 - sucessful 4661 * ENOMEM - could not allocated memory. 4662 **/ 4663static int 4664lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 4665{ 4666 uint32_t bmbx_size; 4667 struct lpfc_dmabuf *dmabuf; 4668 struct dma_address *dma_address; 4669 uint32_t pa_addr; 4670 uint64_t phys_addr; 4671 4672 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4673 if (!dmabuf) 4674 return -ENOMEM; 4675 4676 /* 4677 * The bootstrap mailbox region is comprised of 2 parts 4678 * plus an alignment restriction of 16 bytes. 4679 */ 4680 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 4681 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4682 bmbx_size, 4683 &dmabuf->phys, 4684 GFP_KERNEL); 4685 if (!dmabuf->virt) { 4686 kfree(dmabuf); 4687 return -ENOMEM; 4688 } 4689 memset(dmabuf->virt, 0, bmbx_size); 4690 4691 /* 4692 * Initialize the bootstrap mailbox pointers now so that the register 4693 * operations are simple later. The mailbox dma address is required 4694 * to be 16-byte aligned. Also align the virtual memory as each 4695 * maibox is copied into the bmbx mailbox region before issuing the 4696 * command to the port. 4697 */ 4698 phba->sli4_hba.bmbx.dmabuf = dmabuf; 4699 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 4700 4701 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 4702 LPFC_ALIGN_16_BYTE); 4703 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 4704 LPFC_ALIGN_16_BYTE); 4705 4706 /* 4707 * Set the high and low physical addresses now. The SLI4 alignment 4708 * requirement is 16 bytes and the mailbox is posted to the port 4709 * as two 30-bit addresses. The other data is a bit marking whether 4710 * the 30-bit address is the high or low address. 4711 * Upcast bmbx aphys to 64bits so shift instruction compiles 4712 * clean on 32 bit machines. 4713 */ 4714 dma_address = &phba->sli4_hba.bmbx.dma_address; 4715 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 4716 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 4717 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 4718 LPFC_BMBX_BIT1_ADDR_HI); 4719 4720 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 4721 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 4722 LPFC_BMBX_BIT1_ADDR_LO); 4723 return 0; 4724} 4725 4726/** 4727 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 4728 * @phba: pointer to lpfc hba data structure. 4729 * 4730 * This routine is invoked to teardown the bootstrap mailbox 4731 * region and release all host resources. This routine requires 4732 * the caller to ensure all mailbox commands recovered, no 4733 * additional mailbox comands are sent, and interrupts are disabled 4734 * before calling this routine. 4735 * 4736 **/ 4737static void 4738lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 4739{ 4740 dma_free_coherent(&phba->pcidev->dev, 4741 phba->sli4_hba.bmbx.bmbx_size, 4742 phba->sli4_hba.bmbx.dmabuf->virt, 4743 phba->sli4_hba.bmbx.dmabuf->phys); 4744 4745 kfree(phba->sli4_hba.bmbx.dmabuf); 4746 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 4747} 4748 4749/** 4750 * lpfc_sli4_read_config - Get the config parameters. 4751 * @phba: pointer to lpfc hba data structure. 4752 * 4753 * This routine is invoked to read the configuration parameters from the HBA. 4754 * The configuration parameters are used to set the base and maximum values 4755 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 4756 * allocation for the port. 4757 * 4758 * Return codes 4759 * 0 - sucessful 4760 * ENOMEM - No availble memory 4761 * EIO - The mailbox failed to complete successfully. 4762 **/ 4763static int 4764lpfc_sli4_read_config(struct lpfc_hba *phba) 4765{ 4766 LPFC_MBOXQ_t *pmb; 4767 struct lpfc_mbx_read_config *rd_config; 4768 uint32_t rc = 0; 4769 4770 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4771 if (!pmb) { 4772 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4773 "2011 Unable to allocate memory for issuing " 4774 "SLI_CONFIG_SPECIAL mailbox command\n"); 4775 return -ENOMEM; 4776 } 4777 4778 lpfc_read_config(phba, pmb); 4779 4780 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 4781 if (rc != MBX_SUCCESS) { 4782 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4783 "2012 Mailbox failed , mbxCmd x%x " 4784 "READ_CONFIG, mbxStatus x%x\n", 4785 bf_get(lpfc_mqe_command, &pmb->u.mqe), 4786 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 4787 rc = -EIO; 4788 } else { 4789 rd_config = &pmb->u.mqe.un.rd_config; 4790 phba->sli4_hba.max_cfg_param.max_xri = 4791 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 4792 phba->sli4_hba.max_cfg_param.xri_base = 4793 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 4794 phba->sli4_hba.max_cfg_param.max_vpi = 4795 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 4796 phba->sli4_hba.max_cfg_param.vpi_base = 4797 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 4798 phba->sli4_hba.max_cfg_param.max_rpi = 4799 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 4800 phba->sli4_hba.max_cfg_param.rpi_base = 4801 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 4802 phba->sli4_hba.max_cfg_param.max_vfi = 4803 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 4804 phba->sli4_hba.max_cfg_param.vfi_base = 4805 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 4806 phba->sli4_hba.max_cfg_param.max_fcfi = 4807 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 4808 phba->sli4_hba.max_cfg_param.fcfi_base = 4809 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config); 4810 phba->sli4_hba.max_cfg_param.max_eq = 4811 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 4812 phba->sli4_hba.max_cfg_param.max_rq = 4813 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 4814 phba->sli4_hba.max_cfg_param.max_wq = 4815 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 4816 phba->sli4_hba.max_cfg_param.max_cq = 4817 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 4818 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 4819 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 4820 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 4821 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 4822 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4823 phba->max_vpi = phba->sli4_hba.max_cfg_param.max_vpi; 4824 phba->max_vports = phba->max_vpi; 4825 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4826 "2003 cfg params XRI(B:%d M:%d), " 4827 "VPI(B:%d M:%d) " 4828 "VFI(B:%d M:%d) " 4829 "RPI(B:%d M:%d) " 4830 "FCFI(B:%d M:%d)\n", 4831 phba->sli4_hba.max_cfg_param.xri_base, 4832 phba->sli4_hba.max_cfg_param.max_xri, 4833 phba->sli4_hba.max_cfg_param.vpi_base, 4834 phba->sli4_hba.max_cfg_param.max_vpi, 4835 phba->sli4_hba.max_cfg_param.vfi_base, 4836 phba->sli4_hba.max_cfg_param.max_vfi, 4837 phba->sli4_hba.max_cfg_param.rpi_base, 4838 phba->sli4_hba.max_cfg_param.max_rpi, 4839 phba->sli4_hba.max_cfg_param.fcfi_base, 4840 phba->sli4_hba.max_cfg_param.max_fcfi); 4841 } 4842 mempool_free(pmb, phba->mbox_mem_pool); 4843 4844 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 4845 if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri)) 4846 phba->cfg_hba_queue_depth = 4847 phba->sli4_hba.max_cfg_param.max_xri; 4848 return rc; 4849} 4850 4851/** 4852 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order. 4853 * @phba: pointer to lpfc hba data structure. 4854 * 4855 * This routine is invoked to setup the host-side endian order to the 4856 * HBA consistent with the SLI-4 interface spec. 4857 * 4858 * Return codes 4859 * 0 - sucessful 4860 * ENOMEM - No availble memory 4861 * EIO - The mailbox failed to complete successfully. 4862 **/ 4863static int 4864lpfc_setup_endian_order(struct lpfc_hba *phba) 4865{ 4866 LPFC_MBOXQ_t *mboxq; 4867 uint32_t rc = 0; 4868 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 4869 HOST_ENDIAN_HIGH_WORD1}; 4870 4871 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4872 if (!mboxq) { 4873 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4874 "0492 Unable to allocate memory for issuing " 4875 "SLI_CONFIG_SPECIAL mailbox command\n"); 4876 return -ENOMEM; 4877 } 4878 4879 /* 4880 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two 4881 * words to contain special data values and no other data. 4882 */ 4883 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 4884 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 4885 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4886 if (rc != MBX_SUCCESS) { 4887 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4888 "0493 SLI_CONFIG_SPECIAL mailbox failed with " 4889 "status x%x\n", 4890 rc); 4891 rc = -EIO; 4892 } 4893 4894 mempool_free(mboxq, phba->mbox_mem_pool); 4895 return rc; 4896} 4897 4898/** 4899 * lpfc_sli4_queue_create - Create all the SLI4 queues 4900 * @phba: pointer to lpfc hba data structure. 4901 * 4902 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 4903 * operation. For each SLI4 queue type, the parameters such as queue entry 4904 * count (queue depth) shall be taken from the module parameter. For now, 4905 * we just use some constant number as place holder. 4906 * 4907 * Return codes 4908 * 0 - sucessful 4909 * ENOMEM - No availble memory 4910 * EIO - The mailbox failed to complete successfully. 4911 **/ 4912static int 4913lpfc_sli4_queue_create(struct lpfc_hba *phba) 4914{ 4915 struct lpfc_queue *qdesc; 4916 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 4917 int cfg_fcp_wq_count; 4918 int cfg_fcp_eq_count; 4919 4920 /* 4921 * Sanity check for confiugred queue parameters against the run-time 4922 * device parameters 4923 */ 4924 4925 /* Sanity check on FCP fast-path WQ parameters */ 4926 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 4927 if (cfg_fcp_wq_count > 4928 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 4929 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 4930 LPFC_SP_WQN_DEF; 4931 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 4932 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4933 "2581 Not enough WQs (%d) from " 4934 "the pci function for supporting " 4935 "FCP WQs (%d)\n", 4936 phba->sli4_hba.max_cfg_param.max_wq, 4937 phba->cfg_fcp_wq_count); 4938 goto out_error; 4939 } 4940 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4941 "2582 Not enough WQs (%d) from the pci " 4942 "function for supporting the requested " 4943 "FCP WQs (%d), the actual FCP WQs can " 4944 "be supported: %d\n", 4945 phba->sli4_hba.max_cfg_param.max_wq, 4946 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 4947 } 4948 /* The actual number of FCP work queues adopted */ 4949 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 4950 4951 /* Sanity check on FCP fast-path EQ parameters */ 4952 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 4953 if (cfg_fcp_eq_count > 4954 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 4955 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 4956 LPFC_SP_EQN_DEF; 4957 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 4958 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4959 "2574 Not enough EQs (%d) from the " 4960 "pci function for supporting FCP " 4961 "EQs (%d)\n", 4962 phba->sli4_hba.max_cfg_param.max_eq, 4963 phba->cfg_fcp_eq_count); 4964 goto out_error; 4965 } 4966 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4967 "2575 Not enough EQs (%d) from the pci " 4968 "function for supporting the requested " 4969 "FCP EQs (%d), the actual FCP EQs can " 4970 "be supported: %d\n", 4971 phba->sli4_hba.max_cfg_param.max_eq, 4972 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 4973 } 4974 /* It does not make sense to have more EQs than WQs */ 4975 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 4976 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4977 "2593 The number of FCP EQs (%d) is more " 4978 "than the number of FCP WQs (%d), take " 4979 "the number of FCP EQs same as than of " 4980 "WQs (%d)\n", cfg_fcp_eq_count, 4981 phba->cfg_fcp_wq_count, 4982 phba->cfg_fcp_wq_count); 4983 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 4984 } 4985 /* The actual number of FCP event queues adopted */ 4986 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 4987 /* The overall number of event queues used */ 4988 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 4989 4990 /* 4991 * Create Event Queues (EQs) 4992 */ 4993 4994 /* Get EQ depth from module parameter, fake the default for now */ 4995 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 4996 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 4997 4998 /* Create slow path event queue */ 4999 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5000 phba->sli4_hba.eq_ecount); 5001 if (!qdesc) { 5002 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5003 "0496 Failed allocate slow-path EQ\n"); 5004 goto out_error; 5005 } 5006 phba->sli4_hba.sp_eq = qdesc; 5007 5008 /* Create fast-path FCP Event Queue(s) */ 5009 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 5010 phba->cfg_fcp_eq_count), GFP_KERNEL); 5011 if (!phba->sli4_hba.fp_eq) { 5012 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5013 "2576 Failed allocate memory for fast-path " 5014 "EQ record array\n"); 5015 goto out_free_sp_eq; 5016 } 5017 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5018 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5019 phba->sli4_hba.eq_ecount); 5020 if (!qdesc) { 5021 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5022 "0497 Failed allocate fast-path EQ\n"); 5023 goto out_free_fp_eq; 5024 } 5025 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 5026 } 5027 5028 /* 5029 * Create Complete Queues (CQs) 5030 */ 5031 5032 /* Get CQ depth from module parameter, fake the default for now */ 5033 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 5034 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 5035 5036 /* Create slow-path Mailbox Command Complete Queue */ 5037 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5038 phba->sli4_hba.cq_ecount); 5039 if (!qdesc) { 5040 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5041 "0500 Failed allocate slow-path mailbox CQ\n"); 5042 goto out_free_fp_eq; 5043 } 5044 phba->sli4_hba.mbx_cq = qdesc; 5045 5046 /* Create slow-path ELS Complete Queue */ 5047 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5048 phba->sli4_hba.cq_ecount); 5049 if (!qdesc) { 5050 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5051 "0501 Failed allocate slow-path ELS CQ\n"); 5052 goto out_free_mbx_cq; 5053 } 5054 phba->sli4_hba.els_cq = qdesc; 5055 5056 /* Create slow-path Unsolicited Receive Complete Queue */ 5057 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5058 phba->sli4_hba.cq_ecount); 5059 if (!qdesc) { 5060 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5061 "0502 Failed allocate slow-path USOL RX CQ\n"); 5062 goto out_free_els_cq; 5063 } 5064 phba->sli4_hba.rxq_cq = qdesc; 5065 5066 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ 5067 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 5068 phba->cfg_fcp_eq_count), GFP_KERNEL); 5069 if (!phba->sli4_hba.fcp_cq) { 5070 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5071 "2577 Failed allocate memory for fast-path " 5072 "CQ record array\n"); 5073 goto out_free_rxq_cq; 5074 } 5075 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5076 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5077 phba->sli4_hba.cq_ecount); 5078 if (!qdesc) { 5079 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5080 "0499 Failed allocate fast-path FCP " 5081 "CQ (%d)\n", fcp_cqidx); 5082 goto out_free_fcp_cq; 5083 } 5084 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 5085 } 5086 5087 /* Create Mailbox Command Queue */ 5088 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 5089 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 5090 5091 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 5092 phba->sli4_hba.mq_ecount); 5093 if (!qdesc) { 5094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5095 "0505 Failed allocate slow-path MQ\n"); 5096 goto out_free_fcp_cq; 5097 } 5098 phba->sli4_hba.mbx_wq = qdesc; 5099 5100 /* 5101 * Create all the Work Queues (WQs) 5102 */ 5103 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 5104 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 5105 5106 /* Create slow-path ELS Work Queue */ 5107 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5108 phba->sli4_hba.wq_ecount); 5109 if (!qdesc) { 5110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5111 "0504 Failed allocate slow-path ELS WQ\n"); 5112 goto out_free_mbx_wq; 5113 } 5114 phba->sli4_hba.els_wq = qdesc; 5115 5116 /* Create fast-path FCP Work Queue(s) */ 5117 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 5118 phba->cfg_fcp_wq_count), GFP_KERNEL); 5119 if (!phba->sli4_hba.fcp_wq) { 5120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5121 "2578 Failed allocate memory for fast-path " 5122 "WQ record array\n"); 5123 goto out_free_els_wq; 5124 } 5125 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5126 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5127 phba->sli4_hba.wq_ecount); 5128 if (!qdesc) { 5129 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5130 "0503 Failed allocate fast-path FCP " 5131 "WQ (%d)\n", fcp_wqidx); 5132 goto out_free_fcp_wq; 5133 } 5134 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 5135 } 5136 5137 /* 5138 * Create Receive Queue (RQ) 5139 */ 5140 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 5141 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 5142 5143 /* Create Receive Queue for header */ 5144 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5145 phba->sli4_hba.rq_ecount); 5146 if (!qdesc) { 5147 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5148 "0506 Failed allocate receive HRQ\n"); 5149 goto out_free_fcp_wq; 5150 } 5151 phba->sli4_hba.hdr_rq = qdesc; 5152 5153 /* Create Receive Queue for data */ 5154 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5155 phba->sli4_hba.rq_ecount); 5156 if (!qdesc) { 5157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5158 "0507 Failed allocate receive DRQ\n"); 5159 goto out_free_hdr_rq; 5160 } 5161 phba->sli4_hba.dat_rq = qdesc; 5162 5163 return 0; 5164 5165out_free_hdr_rq: 5166 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5167 phba->sli4_hba.hdr_rq = NULL; 5168out_free_fcp_wq: 5169 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 5170 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 5171 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 5172 } 5173 kfree(phba->sli4_hba.fcp_wq); 5174out_free_els_wq: 5175 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5176 phba->sli4_hba.els_wq = NULL; 5177out_free_mbx_wq: 5178 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5179 phba->sli4_hba.mbx_wq = NULL; 5180out_free_fcp_cq: 5181 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 5182 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 5183 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 5184 } 5185 kfree(phba->sli4_hba.fcp_cq); 5186out_free_rxq_cq: 5187 lpfc_sli4_queue_free(phba->sli4_hba.rxq_cq); 5188 phba->sli4_hba.rxq_cq = NULL; 5189out_free_els_cq: 5190 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5191 phba->sli4_hba.els_cq = NULL; 5192out_free_mbx_cq: 5193 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5194 phba->sli4_hba.mbx_cq = NULL; 5195out_free_fp_eq: 5196 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 5197 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 5198 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 5199 } 5200 kfree(phba->sli4_hba.fp_eq); 5201out_free_sp_eq: 5202 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5203 phba->sli4_hba.sp_eq = NULL; 5204out_error: 5205 return -ENOMEM; 5206} 5207 5208/** 5209 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 5210 * @phba: pointer to lpfc hba data structure. 5211 * 5212 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 5213 * operation. 5214 * 5215 * Return codes 5216 * 0 - sucessful 5217 * ENOMEM - No availble memory 5218 * EIO - The mailbox failed to complete successfully. 5219 **/ 5220static void 5221lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 5222{ 5223 int fcp_qidx; 5224 5225 /* Release mailbox command work queue */ 5226 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5227 phba->sli4_hba.mbx_wq = NULL; 5228 5229 /* Release ELS work queue */ 5230 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5231 phba->sli4_hba.els_wq = NULL; 5232 5233 /* Release FCP work queue */ 5234 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5235 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 5236 kfree(phba->sli4_hba.fcp_wq); 5237 phba->sli4_hba.fcp_wq = NULL; 5238 5239 /* Release unsolicited receive queue */ 5240 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5241 phba->sli4_hba.hdr_rq = NULL; 5242 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 5243 phba->sli4_hba.dat_rq = NULL; 5244 5245 /* Release unsolicited receive complete queue */ 5246 lpfc_sli4_queue_free(phba->sli4_hba.rxq_cq); 5247 phba->sli4_hba.rxq_cq = NULL; 5248 5249 /* Release ELS complete queue */ 5250 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5251 phba->sli4_hba.els_cq = NULL; 5252 5253 /* Release mailbox command complete queue */ 5254 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5255 phba->sli4_hba.mbx_cq = NULL; 5256 5257 /* Release FCP response complete queue */ 5258 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5259 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 5260 kfree(phba->sli4_hba.fcp_cq); 5261 phba->sli4_hba.fcp_cq = NULL; 5262 5263 /* Release fast-path event queue */ 5264 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5265 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 5266 kfree(phba->sli4_hba.fp_eq); 5267 phba->sli4_hba.fp_eq = NULL; 5268 5269 /* Release slow-path event queue */ 5270 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5271 phba->sli4_hba.sp_eq = NULL; 5272 5273 return; 5274} 5275 5276/** 5277 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 5278 * @phba: pointer to lpfc hba data structure. 5279 * 5280 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 5281 * operation. 5282 * 5283 * Return codes 5284 * 0 - sucessful 5285 * ENOMEM - No availble memory 5286 * EIO - The mailbox failed to complete successfully. 5287 **/ 5288int 5289lpfc_sli4_queue_setup(struct lpfc_hba *phba) 5290{ 5291 int rc = -ENOMEM; 5292 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5293 int fcp_cq_index = 0; 5294 5295 /* 5296 * Set up Event Queues (EQs) 5297 */ 5298 5299 /* Set up slow-path event queue */ 5300 if (!phba->sli4_hba.sp_eq) { 5301 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5302 "0520 Slow-path EQ not allocated\n"); 5303 goto out_error; 5304 } 5305 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 5306 LPFC_SP_DEF_IMAX); 5307 if (rc) { 5308 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5309 "0521 Failed setup of slow-path EQ: " 5310 "rc = 0x%x\n", rc); 5311 goto out_error; 5312 } 5313 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5314 "2583 Slow-path EQ setup: queue-id=%d\n", 5315 phba->sli4_hba.sp_eq->queue_id); 5316 5317 /* Set up fast-path event queue */ 5318 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5319 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 5320 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5321 "0522 Fast-path EQ (%d) not " 5322 "allocated\n", fcp_eqidx); 5323 goto out_destroy_fp_eq; 5324 } 5325 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 5326 phba->cfg_fcp_imax); 5327 if (rc) { 5328 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5329 "0523 Failed setup of fast-path EQ " 5330 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 5331 goto out_destroy_fp_eq; 5332 } 5333 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5334 "2584 Fast-path EQ setup: " 5335 "queue[%d]-id=%d\n", fcp_eqidx, 5336 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 5337 } 5338 5339 /* 5340 * Set up Complete Queues (CQs) 5341 */ 5342 5343 /* Set up slow-path MBOX Complete Queue as the first CQ */ 5344 if (!phba->sli4_hba.mbx_cq) { 5345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5346 "0528 Mailbox CQ not allocated\n"); 5347 goto out_destroy_fp_eq; 5348 } 5349 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 5350 LPFC_MCQ, LPFC_MBOX); 5351 if (rc) { 5352 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5353 "0529 Failed setup of slow-path mailbox CQ: " 5354 "rc = 0x%x\n", rc); 5355 goto out_destroy_fp_eq; 5356 } 5357 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5358 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 5359 phba->sli4_hba.mbx_cq->queue_id, 5360 phba->sli4_hba.sp_eq->queue_id); 5361 5362 /* Set up slow-path ELS Complete Queue */ 5363 if (!phba->sli4_hba.els_cq) { 5364 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5365 "0530 ELS CQ not allocated\n"); 5366 goto out_destroy_mbx_cq; 5367 } 5368 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 5369 LPFC_WCQ, LPFC_ELS); 5370 if (rc) { 5371 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5372 "0531 Failed setup of slow-path ELS CQ: " 5373 "rc = 0x%x\n", rc); 5374 goto out_destroy_mbx_cq; 5375 } 5376 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5377 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 5378 phba->sli4_hba.els_cq->queue_id, 5379 phba->sli4_hba.sp_eq->queue_id); 5380 5381 /* Set up slow-path Unsolicited Receive Complete Queue */ 5382 if (!phba->sli4_hba.rxq_cq) { 5383 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5384 "0532 USOL RX CQ not allocated\n"); 5385 goto out_destroy_els_cq; 5386 } 5387 rc = lpfc_cq_create(phba, phba->sli4_hba.rxq_cq, phba->sli4_hba.sp_eq, 5388 LPFC_RCQ, LPFC_USOL); 5389 if (rc) { 5390 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5391 "0533 Failed setup of slow-path USOL RX CQ: " 5392 "rc = 0x%x\n", rc); 5393 goto out_destroy_els_cq; 5394 } 5395 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5396 "2587 USL CQ setup: cq-id=%d, parent eq-id=%d\n", 5397 phba->sli4_hba.rxq_cq->queue_id, 5398 phba->sli4_hba.sp_eq->queue_id); 5399 5400 /* Set up fast-path FCP Response Complete Queue */ 5401 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5402 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 5403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5404 "0526 Fast-path FCP CQ (%d) not " 5405 "allocated\n", fcp_cqidx); 5406 goto out_destroy_fcp_cq; 5407 } 5408 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 5409 phba->sli4_hba.fp_eq[fcp_cqidx], 5410 LPFC_WCQ, LPFC_FCP); 5411 if (rc) { 5412 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5413 "0527 Failed setup of fast-path FCP " 5414 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 5415 goto out_destroy_fcp_cq; 5416 } 5417 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5418 "2588 FCP CQ setup: cq[%d]-id=%d, " 5419 "parent eq[%d]-id=%d\n", 5420 fcp_cqidx, 5421 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 5422 fcp_cqidx, 5423 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id); 5424 } 5425 5426 /* 5427 * Set up all the Work Queues (WQs) 5428 */ 5429 5430 /* Set up Mailbox Command Queue */ 5431 if (!phba->sli4_hba.mbx_wq) { 5432 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5433 "0538 Slow-path MQ not allocated\n"); 5434 goto out_destroy_fcp_cq; 5435 } 5436 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 5437 phba->sli4_hba.mbx_cq, LPFC_MBOX); 5438 if (rc) { 5439 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5440 "0539 Failed setup of slow-path MQ: " 5441 "rc = 0x%x\n", rc); 5442 goto out_destroy_fcp_cq; 5443 } 5444 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5445 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 5446 phba->sli4_hba.mbx_wq->queue_id, 5447 phba->sli4_hba.mbx_cq->queue_id); 5448 5449 /* Set up slow-path ELS Work Queue */ 5450 if (!phba->sli4_hba.els_wq) { 5451 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5452 "0536 Slow-path ELS WQ not allocated\n"); 5453 goto out_destroy_mbx_wq; 5454 } 5455 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 5456 phba->sli4_hba.els_cq, LPFC_ELS); 5457 if (rc) { 5458 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5459 "0537 Failed setup of slow-path ELS WQ: " 5460 "rc = 0x%x\n", rc); 5461 goto out_destroy_mbx_wq; 5462 } 5463 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5464 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 5465 phba->sli4_hba.els_wq->queue_id, 5466 phba->sli4_hba.els_cq->queue_id); 5467 5468 /* Set up fast-path FCP Work Queue */ 5469 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5470 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 5471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5472 "0534 Fast-path FCP WQ (%d) not " 5473 "allocated\n", fcp_wqidx); 5474 goto out_destroy_fcp_wq; 5475 } 5476 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 5477 phba->sli4_hba.fcp_cq[fcp_cq_index], 5478 LPFC_FCP); 5479 if (rc) { 5480 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5481 "0535 Failed setup of fast-path FCP " 5482 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 5483 goto out_destroy_fcp_wq; 5484 } 5485 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5486 "2591 FCP WQ setup: wq[%d]-id=%d, " 5487 "parent cq[%d]-id=%d\n", 5488 fcp_wqidx, 5489 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 5490 fcp_cq_index, 5491 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 5492 /* Round robin FCP Work Queue's Completion Queue assignment */ 5493 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count); 5494 } 5495 5496 /* 5497 * Create Receive Queue (RQ) 5498 */ 5499 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 5500 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5501 "0540 Receive Queue not allocated\n"); 5502 goto out_destroy_fcp_wq; 5503 } 5504 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 5505 phba->sli4_hba.rxq_cq, LPFC_USOL); 5506 if (rc) { 5507 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5508 "0541 Failed setup of Receive Queue: " 5509 "rc = 0x%x\n", rc); 5510 goto out_destroy_fcp_wq; 5511 } 5512 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5513 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 5514 "parent cq-id=%d\n", 5515 phba->sli4_hba.hdr_rq->queue_id, 5516 phba->sli4_hba.dat_rq->queue_id, 5517 phba->sli4_hba.rxq_cq->queue_id); 5518 return 0; 5519 5520out_destroy_fcp_wq: 5521 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 5522 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 5523 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 5524out_destroy_mbx_wq: 5525 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 5526out_destroy_fcp_cq: 5527 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 5528 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 5529 lpfc_cq_destroy(phba, phba->sli4_hba.rxq_cq); 5530out_destroy_els_cq: 5531 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 5532out_destroy_mbx_cq: 5533 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 5534out_destroy_fp_eq: 5535 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 5536 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 5537 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 5538out_error: 5539 return rc; 5540} 5541 5542/** 5543 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 5544 * @phba: pointer to lpfc hba data structure. 5545 * 5546 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 5547 * operation. 5548 * 5549 * Return codes 5550 * 0 - sucessful 5551 * ENOMEM - No availble memory 5552 * EIO - The mailbox failed to complete successfully. 5553 **/ 5554void 5555lpfc_sli4_queue_unset(struct lpfc_hba *phba) 5556{ 5557 int fcp_qidx; 5558 5559 /* Unset mailbox command work queue */ 5560 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 5561 /* Unset ELS work queue */ 5562 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 5563 /* Unset unsolicited receive queue */ 5564 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 5565 /* Unset FCP work queue */ 5566 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5567 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 5568 /* Unset mailbox command complete queue */ 5569 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 5570 /* Unset ELS complete queue */ 5571 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 5572 /* Unset unsolicited receive complete queue */ 5573 lpfc_cq_destroy(phba, phba->sli4_hba.rxq_cq); 5574 /* Unset FCP response complete queue */ 5575 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5576 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 5577 /* Unset fast-path event queue */ 5578 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5579 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 5580 /* Unset slow-path event queue */ 5581 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 5582} 5583 5584/** 5585 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 5586 * @phba: pointer to lpfc hba data structure. 5587 * 5588 * This routine is invoked to allocate and set up a pool of completion queue 5589 * events. The body of the completion queue event is a completion queue entry 5590 * CQE. For now, this pool is used for the interrupt service routine to queue 5591 * the following HBA completion queue events for the worker thread to process: 5592 * - Mailbox asynchronous events 5593 * - Receive queue completion unsolicited events 5594 * Later, this can be used for all the slow-path events. 5595 * 5596 * Return codes 5597 * 0 - sucessful 5598 * -ENOMEM - No availble memory 5599 **/ 5600static int 5601lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 5602{ 5603 struct lpfc_cq_event *cq_event; 5604 int i; 5605 5606 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 5607 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 5608 if (!cq_event) 5609 goto out_pool_create_fail; 5610 list_add_tail(&cq_event->list, 5611 &phba->sli4_hba.sp_cqe_event_pool); 5612 } 5613 return 0; 5614 5615out_pool_create_fail: 5616 lpfc_sli4_cq_event_pool_destroy(phba); 5617 return -ENOMEM; 5618} 5619 5620/** 5621 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 5622 * @phba: pointer to lpfc hba data structure. 5623 * 5624 * This routine is invoked to free the pool of completion queue events at 5625 * driver unload time. Note that, it is the responsibility of the driver 5626 * cleanup routine to free all the outstanding completion-queue events 5627 * allocated from this pool back into the pool before invoking this routine 5628 * to destroy the pool. 5629 **/ 5630static void 5631lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 5632{ 5633 struct lpfc_cq_event *cq_event, *next_cq_event; 5634 5635 list_for_each_entry_safe(cq_event, next_cq_event, 5636 &phba->sli4_hba.sp_cqe_event_pool, list) { 5637 list_del(&cq_event->list); 5638 kfree(cq_event); 5639 } 5640} 5641 5642/** 5643 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 5644 * @phba: pointer to lpfc hba data structure. 5645 * 5646 * This routine is the lock free version of the API invoked to allocate a 5647 * completion-queue event from the free pool. 5648 * 5649 * Return: Pointer to the newly allocated completion-queue event if successful 5650 * NULL otherwise. 5651 **/ 5652struct lpfc_cq_event * 5653__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 5654{ 5655 struct lpfc_cq_event *cq_event = NULL; 5656 5657 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 5658 struct lpfc_cq_event, list); 5659 return cq_event; 5660} 5661 5662/** 5663 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 5664 * @phba: pointer to lpfc hba data structure. 5665 * 5666 * This routine is the lock version of the API invoked to allocate a 5667 * completion-queue event from the free pool. 5668 * 5669 * Return: Pointer to the newly allocated completion-queue event if successful 5670 * NULL otherwise. 5671 **/ 5672struct lpfc_cq_event * 5673lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 5674{ 5675 struct lpfc_cq_event *cq_event; 5676 unsigned long iflags; 5677 5678 spin_lock_irqsave(&phba->hbalock, iflags); 5679 cq_event = __lpfc_sli4_cq_event_alloc(phba); 5680 spin_unlock_irqrestore(&phba->hbalock, iflags); 5681 return cq_event; 5682} 5683 5684/** 5685 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 5686 * @phba: pointer to lpfc hba data structure. 5687 * @cq_event: pointer to the completion queue event to be freed. 5688 * 5689 * This routine is the lock free version of the API invoked to release a 5690 * completion-queue event back into the free pool. 5691 **/ 5692void 5693__lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 5694 struct lpfc_cq_event *cq_event) 5695{ 5696 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 5697} 5698 5699/** 5700 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 5701 * @phba: pointer to lpfc hba data structure. 5702 * @cq_event: pointer to the completion queue event to be freed. 5703 * 5704 * This routine is the lock version of the API invoked to release a 5705 * completion-queue event back into the free pool. 5706 **/ 5707void 5708lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 5709 struct lpfc_cq_event *cq_event) 5710{ 5711 unsigned long iflags; 5712 spin_lock_irqsave(&phba->hbalock, iflags); 5713 __lpfc_sli4_cq_event_release(phba, cq_event); 5714 spin_unlock_irqrestore(&phba->hbalock, iflags); 5715} 5716 5717/** 5718 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 5719 * @phba: pointer to lpfc hba data structure. 5720 * 5721 * This routine is to free all the pending completion-queue events to the 5722 * back into the free pool for device reset. 5723 **/ 5724static void 5725lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 5726{ 5727 LIST_HEAD(cqelist); 5728 struct lpfc_cq_event *cqe; 5729 unsigned long iflags; 5730 5731 /* Retrieve all the pending WCQEs from pending WCQE lists */ 5732 spin_lock_irqsave(&phba->hbalock, iflags); 5733 /* Pending FCP XRI abort events */ 5734 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 5735 &cqelist); 5736 /* Pending ELS XRI abort events */ 5737 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 5738 &cqelist); 5739 /* Pending asynnc events */ 5740 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 5741 &cqelist); 5742 spin_unlock_irqrestore(&phba->hbalock, iflags); 5743 5744 while (!list_empty(&cqelist)) { 5745 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 5746 lpfc_sli4_cq_event_release(phba, cqe); 5747 } 5748} 5749 5750/** 5751 * lpfc_pci_function_reset - Reset pci function. 5752 * @phba: pointer to lpfc hba data structure. 5753 * 5754 * This routine is invoked to request a PCI function reset. It will destroys 5755 * all resources assigned to the PCI function which originates this request. 5756 * 5757 * Return codes 5758 * 0 - sucessful 5759 * ENOMEM - No availble memory 5760 * EIO - The mailbox failed to complete successfully. 5761 **/ 5762int 5763lpfc_pci_function_reset(struct lpfc_hba *phba) 5764{ 5765 LPFC_MBOXQ_t *mboxq; 5766 uint32_t rc = 0; 5767 uint32_t shdr_status, shdr_add_status; 5768 union lpfc_sli4_cfg_shdr *shdr; 5769 5770 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5771 if (!mboxq) { 5772 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5773 "0494 Unable to allocate memory for issuing " 5774 "SLI_FUNCTION_RESET mailbox command\n"); 5775 return -ENOMEM; 5776 } 5777 5778 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */ 5779 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 5780 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 5781 LPFC_SLI4_MBX_EMBED); 5782 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5783 shdr = (union lpfc_sli4_cfg_shdr *) 5784 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 5785 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 5786 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 5787 if (rc != MBX_TIMEOUT) 5788 mempool_free(mboxq, phba->mbox_mem_pool); 5789 if (shdr_status || shdr_add_status || rc) { 5790 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5791 "0495 SLI_FUNCTION_RESET mailbox failed with " 5792 "status x%x add_status x%x, mbx status x%x\n", 5793 shdr_status, shdr_add_status, rc); 5794 rc = -ENXIO; 5795 } 5796 return rc; 5797} 5798 5799/** 5800 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 5801 * @phba: pointer to lpfc hba data structure. 5802 * @cnt: number of nop mailbox commands to send. 5803 * 5804 * This routine is invoked to send a number @cnt of NOP mailbox command and 5805 * wait for each command to complete. 5806 * 5807 * Return: the number of NOP mailbox command completed. 5808 **/ 5809static int 5810lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 5811{ 5812 LPFC_MBOXQ_t *mboxq; 5813 int length, cmdsent; 5814 uint32_t mbox_tmo; 5815 uint32_t rc = 0; 5816 uint32_t shdr_status, shdr_add_status; 5817 union lpfc_sli4_cfg_shdr *shdr; 5818 5819 if (cnt == 0) { 5820 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5821 "2518 Requested to send 0 NOP mailbox cmd\n"); 5822 return cnt; 5823 } 5824 5825 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5826 if (!mboxq) { 5827 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5828 "2519 Unable to allocate memory for issuing " 5829 "NOP mailbox command\n"); 5830 return 0; 5831 } 5832 5833 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 5834 length = (sizeof(struct lpfc_mbx_nop) - 5835 sizeof(struct lpfc_sli4_cfg_mhdr)); 5836 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 5837 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 5838 5839 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 5840 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 5841 if (!phba->sli4_hba.intr_enable) 5842 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5843 else 5844 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 5845 if (rc == MBX_TIMEOUT) 5846 break; 5847 /* Check return status */ 5848 shdr = (union lpfc_sli4_cfg_shdr *) 5849 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 5850 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 5851 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 5852 &shdr->response); 5853 if (shdr_status || shdr_add_status || rc) { 5854 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5855 "2520 NOP mailbox command failed " 5856 "status x%x add_status x%x mbx " 5857 "status x%x\n", shdr_status, 5858 shdr_add_status, rc); 5859 break; 5860 } 5861 } 5862 5863 if (rc != MBX_TIMEOUT) 5864 mempool_free(mboxq, phba->mbox_mem_pool); 5865 5866 return cmdsent; 5867} 5868 5869/** 5870 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device 5871 * @phba: pointer to lpfc hba data structure. 5872 * @fcfi: fcf index. 5873 * 5874 * This routine is invoked to unregister a FCFI from device. 5875 **/ 5876void 5877lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi) 5878{ 5879 LPFC_MBOXQ_t *mbox; 5880 uint32_t mbox_tmo; 5881 int rc; 5882 unsigned long flags; 5883 5884 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5885 5886 if (!mbox) 5887 return; 5888 5889 lpfc_unreg_fcfi(mbox, fcfi); 5890 5891 if (!phba->sli4_hba.intr_enable) 5892 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 5893 else { 5894 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 5895 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); 5896 } 5897 if (rc != MBX_TIMEOUT) 5898 mempool_free(mbox, phba->mbox_mem_pool); 5899 if (rc != MBX_SUCCESS) 5900 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5901 "2517 Unregister FCFI command failed " 5902 "status %d, mbxStatus x%x\n", rc, 5903 bf_get(lpfc_mqe_status, &mbox->u.mqe)); 5904 else { 5905 spin_lock_irqsave(&phba->hbalock, flags); 5906 /* Mark the FCFI is no longer registered */ 5907 phba->fcf.fcf_flag &= 5908 ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_DISCOVERED); 5909 spin_unlock_irqrestore(&phba->hbalock, flags); 5910 } 5911} 5912 5913/** 5914 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 5915 * @phba: pointer to lpfc hba data structure. 5916 * 5917 * This routine is invoked to set up the PCI device memory space for device 5918 * with SLI-4 interface spec. 5919 * 5920 * Return codes 5921 * 0 - sucessful 5922 * other values - error 5923 **/ 5924static int 5925lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 5926{ 5927 struct pci_dev *pdev; 5928 unsigned long bar0map_len, bar1map_len, bar2map_len; 5929 int error = -ENODEV; 5930 5931 /* Obtain PCI device reference */ 5932 if (!phba->pcidev) 5933 return error; 5934 else 5935 pdev = phba->pcidev; 5936 5937 /* Set the device DMA mask size */ 5938 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) 5939 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) 5940 return error; 5941 5942 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the 5943 * number of bytes required by each mapping. They are actually 5944 * mapping to the PCI BAR regions 1, 2, and 4 by the SLI4 device. 5945 */ 5946 phba->pci_bar0_map = pci_resource_start(pdev, LPFC_SLI4_BAR0); 5947 bar0map_len = pci_resource_len(pdev, LPFC_SLI4_BAR0); 5948 5949 phba->pci_bar1_map = pci_resource_start(pdev, LPFC_SLI4_BAR1); 5950 bar1map_len = pci_resource_len(pdev, LPFC_SLI4_BAR1); 5951 5952 phba->pci_bar2_map = pci_resource_start(pdev, LPFC_SLI4_BAR2); 5953 bar2map_len = pci_resource_len(pdev, LPFC_SLI4_BAR2); 5954 5955 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */ 5956 phba->sli4_hba.conf_regs_memmap_p = 5957 ioremap(phba->pci_bar0_map, bar0map_len); 5958 if (!phba->sli4_hba.conf_regs_memmap_p) { 5959 dev_printk(KERN_ERR, &pdev->dev, 5960 "ioremap failed for SLI4 PCI config registers.\n"); 5961 goto out; 5962 } 5963 5964 /* Map SLI4 HBA Control Register base to a kernel virtual address. */ 5965 phba->sli4_hba.ctrl_regs_memmap_p = 5966 ioremap(phba->pci_bar1_map, bar1map_len); 5967 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 5968 dev_printk(KERN_ERR, &pdev->dev, 5969 "ioremap failed for SLI4 HBA control registers.\n"); 5970 goto out_iounmap_conf; 5971 } 5972 5973 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */ 5974 phba->sli4_hba.drbl_regs_memmap_p = 5975 ioremap(phba->pci_bar2_map, bar2map_len); 5976 if (!phba->sli4_hba.drbl_regs_memmap_p) { 5977 dev_printk(KERN_ERR, &pdev->dev, 5978 "ioremap failed for SLI4 HBA doorbell registers.\n"); 5979 goto out_iounmap_ctrl; 5980 } 5981 5982 /* Set up BAR0 PCI config space register memory map */ 5983 lpfc_sli4_bar0_register_memmap(phba); 5984 5985 /* Set up BAR1 register memory map */ 5986 lpfc_sli4_bar1_register_memmap(phba); 5987 5988 /* Set up BAR2 register memory map */ 5989 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 5990 if (error) 5991 goto out_iounmap_all; 5992 5993 return 0; 5994 5995out_iounmap_all: 5996 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 5997out_iounmap_ctrl: 5998 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 5999out_iounmap_conf: 6000 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6001out: 6002 return error; 6003} 6004 6005/** 6006 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 6007 * @phba: pointer to lpfc hba data structure. 6008 * 6009 * This routine is invoked to unset the PCI device memory space for device 6010 * with SLI-4 interface spec. 6011 **/ 6012static void 6013lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 6014{ 6015 struct pci_dev *pdev; 6016 6017 /* Obtain PCI device reference */ 6018 if (!phba->pcidev) 6019 return; 6020 else 6021 pdev = phba->pcidev; 6022 6023 /* Free coherent DMA memory allocated */ 6024 6025 /* Unmap I/O memory space */ 6026 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6027 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6028 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6029 6030 return; 6031} 6032 6033/** 6034 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 6035 * @phba: pointer to lpfc hba data structure. 6036 * 6037 * This routine is invoked to enable the MSI-X interrupt vectors to device 6038 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 6039 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 6040 * invoked, enables either all or nothing, depending on the current 6041 * availability of PCI vector resources. The device driver is responsible 6042 * for calling the individual request_irq() to register each MSI-X vector 6043 * with a interrupt handler, which is done in this function. Note that 6044 * later when device is unloading, the driver should always call free_irq() 6045 * on all MSI-X vectors it has done request_irq() on before calling 6046 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 6047 * will be left with MSI-X enabled and leaks its vectors. 6048 * 6049 * Return codes 6050 * 0 - sucessful 6051 * other values - error 6052 **/ 6053static int 6054lpfc_sli_enable_msix(struct lpfc_hba *phba) 6055{ 6056 int rc, i; 6057 LPFC_MBOXQ_t *pmb; 6058 6059 /* Set up MSI-X multi-message vectors */ 6060 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6061 phba->msix_entries[i].entry = i; 6062 6063 /* Configure MSI-X capability structure */ 6064 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 6065 ARRAY_SIZE(phba->msix_entries)); 6066 if (rc) { 6067 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6068 "0420 PCI enable MSI-X failed (%d)\n", rc); 6069 goto msi_fail_out; 6070 } 6071 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6072 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6073 "0477 MSI-X entry[%d]: vector=x%x " 6074 "message=%d\n", i, 6075 phba->msix_entries[i].vector, 6076 phba->msix_entries[i].entry); 6077 /* 6078 * Assign MSI-X vectors to interrupt handlers 6079 */ 6080 6081 /* vector-0 is associated to slow-path handler */ 6082 rc = request_irq(phba->msix_entries[0].vector, 6083 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 6084 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6085 if (rc) { 6086 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6087 "0421 MSI-X slow-path request_irq failed " 6088 "(%d)\n", rc); 6089 goto msi_fail_out; 6090 } 6091 6092 /* vector-1 is associated to fast-path handler */ 6093 rc = request_irq(phba->msix_entries[1].vector, 6094 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 6095 LPFC_FP_DRIVER_HANDLER_NAME, phba); 6096 6097 if (rc) { 6098 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6099 "0429 MSI-X fast-path request_irq failed " 6100 "(%d)\n", rc); 6101 goto irq_fail_out; 6102 } 6103 6104 /* 6105 * Configure HBA MSI-X attention conditions to messages 6106 */ 6107 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6108 6109 if (!pmb) { 6110 rc = -ENOMEM; 6111 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6112 "0474 Unable to allocate memory for issuing " 6113 "MBOX_CONFIG_MSI command\n"); 6114 goto mem_fail_out; 6115 } 6116 rc = lpfc_config_msi(phba, pmb); 6117 if (rc) 6118 goto mbx_fail_out; 6119 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6120 if (rc != MBX_SUCCESS) { 6121 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 6122 "0351 Config MSI mailbox command failed, " 6123 "mbxCmd x%x, mbxStatus x%x\n", 6124 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 6125 goto mbx_fail_out; 6126 } 6127 6128 /* Free memory allocated for mailbox command */ 6129 mempool_free(pmb, phba->mbox_mem_pool); 6130 return rc; 6131 6132mbx_fail_out: 6133 /* Free memory allocated for mailbox command */ 6134 mempool_free(pmb, phba->mbox_mem_pool); 6135 6136mem_fail_out: 6137 /* free the irq already requested */ 6138 free_irq(phba->msix_entries[1].vector, phba); 6139 6140irq_fail_out: 6141 /* free the irq already requested */ 6142 free_irq(phba->msix_entries[0].vector, phba); 6143 6144msi_fail_out: 6145 /* Unconfigure MSI-X capability structure */ 6146 pci_disable_msix(phba->pcidev); 6147 return rc; 6148} 6149 6150/** 6151 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 6152 * @phba: pointer to lpfc hba data structure. 6153 * 6154 * This routine is invoked to release the MSI-X vectors and then disable the 6155 * MSI-X interrupt mode to device with SLI-3 interface spec. 6156 **/ 6157static void 6158lpfc_sli_disable_msix(struct lpfc_hba *phba) 6159{ 6160 int i; 6161 6162 /* Free up MSI-X multi-message vectors */ 6163 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6164 free_irq(phba->msix_entries[i].vector, phba); 6165 /* Disable MSI-X */ 6166 pci_disable_msix(phba->pcidev); 6167 6168 return; 6169} 6170 6171/** 6172 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 6173 * @phba: pointer to lpfc hba data structure. 6174 * 6175 * This routine is invoked to enable the MSI interrupt mode to device with 6176 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 6177 * enable the MSI vector. The device driver is responsible for calling the 6178 * request_irq() to register MSI vector with a interrupt the handler, which 6179 * is done in this function. 6180 * 6181 * Return codes 6182 * 0 - sucessful 6183 * other values - error 6184 */ 6185static int 6186lpfc_sli_enable_msi(struct lpfc_hba *phba) 6187{ 6188 int rc; 6189 6190 rc = pci_enable_msi(phba->pcidev); 6191 if (!rc) 6192 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6193 "0462 PCI enable MSI mode success.\n"); 6194 else { 6195 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6196 "0471 PCI enable MSI mode failed (%d)\n", rc); 6197 return rc; 6198 } 6199 6200 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6201 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6202 if (rc) { 6203 pci_disable_msi(phba->pcidev); 6204 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6205 "0478 MSI request_irq failed (%d)\n", rc); 6206 } 6207 return rc; 6208} 6209 6210/** 6211 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 6212 * @phba: pointer to lpfc hba data structure. 6213 * 6214 * This routine is invoked to disable the MSI interrupt mode to device with 6215 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 6216 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6217 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6218 * its vector. 6219 */ 6220static void 6221lpfc_sli_disable_msi(struct lpfc_hba *phba) 6222{ 6223 free_irq(phba->pcidev->irq, phba); 6224 pci_disable_msi(phba->pcidev); 6225 return; 6226} 6227 6228/** 6229 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 6230 * @phba: pointer to lpfc hba data structure. 6231 * 6232 * This routine is invoked to enable device interrupt and associate driver's 6233 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 6234 * spec. Depends on the interrupt mode configured to the driver, the driver 6235 * will try to fallback from the configured interrupt mode to an interrupt 6236 * mode which is supported by the platform, kernel, and device in the order 6237 * of: 6238 * MSI-X -> MSI -> IRQ. 6239 * 6240 * Return codes 6241 * 0 - sucessful 6242 * other values - error 6243 **/ 6244static uint32_t 6245lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6246{ 6247 uint32_t intr_mode = LPFC_INTR_ERROR; 6248 int retval; 6249 6250 if (cfg_mode == 2) { 6251 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 6252 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 6253 if (!retval) { 6254 /* Now, try to enable MSI-X interrupt mode */ 6255 retval = lpfc_sli_enable_msix(phba); 6256 if (!retval) { 6257 /* Indicate initialization to MSI-X mode */ 6258 phba->intr_type = MSIX; 6259 intr_mode = 2; 6260 } 6261 } 6262 } 6263 6264 /* Fallback to MSI if MSI-X initialization failed */ 6265 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6266 retval = lpfc_sli_enable_msi(phba); 6267 if (!retval) { 6268 /* Indicate initialization to MSI mode */ 6269 phba->intr_type = MSI; 6270 intr_mode = 1; 6271 } 6272 } 6273 6274 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6275 if (phba->intr_type == NONE) { 6276 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6277 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6278 if (!retval) { 6279 /* Indicate initialization to INTx mode */ 6280 phba->intr_type = INTx; 6281 intr_mode = 0; 6282 } 6283 } 6284 return intr_mode; 6285} 6286 6287/** 6288 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 6289 * @phba: pointer to lpfc hba data structure. 6290 * 6291 * This routine is invoked to disable device interrupt and disassociate the 6292 * driver's interrupt handler(s) from interrupt vector(s) to device with 6293 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 6294 * release the interrupt vector(s) for the message signaled interrupt. 6295 **/ 6296static void 6297lpfc_sli_disable_intr(struct lpfc_hba *phba) 6298{ 6299 /* Disable the currently initialized interrupt mode */ 6300 if (phba->intr_type == MSIX) 6301 lpfc_sli_disable_msix(phba); 6302 else if (phba->intr_type == MSI) 6303 lpfc_sli_disable_msi(phba); 6304 else if (phba->intr_type == INTx) 6305 free_irq(phba->pcidev->irq, phba); 6306 6307 /* Reset interrupt management states */ 6308 phba->intr_type = NONE; 6309 phba->sli.slistat.sli_intr = 0; 6310 6311 return; 6312} 6313 6314/** 6315 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 6316 * @phba: pointer to lpfc hba data structure. 6317 * 6318 * This routine is invoked to enable the MSI-X interrupt vectors to device 6319 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 6320 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 6321 * enables either all or nothing, depending on the current availability of 6322 * PCI vector resources. The device driver is responsible for calling the 6323 * individual request_irq() to register each MSI-X vector with a interrupt 6324 * handler, which is done in this function. Note that later when device is 6325 * unloading, the driver should always call free_irq() on all MSI-X vectors 6326 * it has done request_irq() on before calling pci_disable_msix(). Failure 6327 * to do so results in a BUG_ON() and a device will be left with MSI-X 6328 * enabled and leaks its vectors. 6329 * 6330 * Return codes 6331 * 0 - sucessful 6332 * other values - error 6333 **/ 6334static int 6335lpfc_sli4_enable_msix(struct lpfc_hba *phba) 6336{ 6337 int rc, index; 6338 6339 /* Set up MSI-X multi-message vectors */ 6340 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 6341 phba->sli4_hba.msix_entries[index].entry = index; 6342 6343 /* Configure MSI-X capability structure */ 6344 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 6345 phba->sli4_hba.cfg_eqn); 6346 if (rc) { 6347 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6348 "0484 PCI enable MSI-X failed (%d)\n", rc); 6349 goto msi_fail_out; 6350 } 6351 /* Log MSI-X vector assignment */ 6352 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 6353 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6354 "0489 MSI-X entry[%d]: vector=x%x " 6355 "message=%d\n", index, 6356 phba->sli4_hba.msix_entries[index].vector, 6357 phba->sli4_hba.msix_entries[index].entry); 6358 /* 6359 * Assign MSI-X vectors to interrupt handlers 6360 */ 6361 6362 /* The first vector must associated to slow-path handler for MQ */ 6363 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 6364 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 6365 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6366 if (rc) { 6367 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6368 "0485 MSI-X slow-path request_irq failed " 6369 "(%d)\n", rc); 6370 goto msi_fail_out; 6371 } 6372 6373 /* The rest of the vector(s) are associated to fast-path handler(s) */ 6374 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) { 6375 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 6376 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 6377 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 6378 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 6379 LPFC_FP_DRIVER_HANDLER_NAME, 6380 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 6381 if (rc) { 6382 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6383 "0486 MSI-X fast-path (%d) " 6384 "request_irq failed (%d)\n", index, rc); 6385 goto cfg_fail_out; 6386 } 6387 } 6388 6389 return rc; 6390 6391cfg_fail_out: 6392 /* free the irq already requested */ 6393 for (--index; index >= 1; index--) 6394 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 6395 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 6396 6397 /* free the irq already requested */ 6398 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 6399 6400msi_fail_out: 6401 /* Unconfigure MSI-X capability structure */ 6402 pci_disable_msix(phba->pcidev); 6403 return rc; 6404} 6405 6406/** 6407 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 6408 * @phba: pointer to lpfc hba data structure. 6409 * 6410 * This routine is invoked to release the MSI-X vectors and then disable the 6411 * MSI-X interrupt mode to device with SLI-4 interface spec. 6412 **/ 6413static void 6414lpfc_sli4_disable_msix(struct lpfc_hba *phba) 6415{ 6416 int index; 6417 6418 /* Free up MSI-X multi-message vectors */ 6419 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 6420 6421 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) 6422 free_irq(phba->sli4_hba.msix_entries[index].vector, 6423 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 6424 /* Disable MSI-X */ 6425 pci_disable_msix(phba->pcidev); 6426 6427 return; 6428} 6429 6430/** 6431 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 6432 * @phba: pointer to lpfc hba data structure. 6433 * 6434 * This routine is invoked to enable the MSI interrupt mode to device with 6435 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 6436 * to enable the MSI vector. The device driver is responsible for calling 6437 * the request_irq() to register MSI vector with a interrupt the handler, 6438 * which is done in this function. 6439 * 6440 * Return codes 6441 * 0 - sucessful 6442 * other values - error 6443 **/ 6444static int 6445lpfc_sli4_enable_msi(struct lpfc_hba *phba) 6446{ 6447 int rc, index; 6448 6449 rc = pci_enable_msi(phba->pcidev); 6450 if (!rc) 6451 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6452 "0487 PCI enable MSI mode success.\n"); 6453 else { 6454 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6455 "0488 PCI enable MSI mode failed (%d)\n", rc); 6456 return rc; 6457 } 6458 6459 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 6460 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6461 if (rc) { 6462 pci_disable_msi(phba->pcidev); 6463 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6464 "0490 MSI request_irq failed (%d)\n", rc); 6465 } 6466 6467 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 6468 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 6469 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 6470 } 6471 6472 return rc; 6473} 6474 6475/** 6476 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 6477 * @phba: pointer to lpfc hba data structure. 6478 * 6479 * This routine is invoked to disable the MSI interrupt mode to device with 6480 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 6481 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6482 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6483 * its vector. 6484 **/ 6485static void 6486lpfc_sli4_disable_msi(struct lpfc_hba *phba) 6487{ 6488 free_irq(phba->pcidev->irq, phba); 6489 pci_disable_msi(phba->pcidev); 6490 return; 6491} 6492 6493/** 6494 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 6495 * @phba: pointer to lpfc hba data structure. 6496 * 6497 * This routine is invoked to enable device interrupt and associate driver's 6498 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 6499 * interface spec. Depends on the interrupt mode configured to the driver, 6500 * the driver will try to fallback from the configured interrupt mode to an 6501 * interrupt mode which is supported by the platform, kernel, and device in 6502 * the order of: 6503 * MSI-X -> MSI -> IRQ. 6504 * 6505 * Return codes 6506 * 0 - sucessful 6507 * other values - error 6508 **/ 6509static uint32_t 6510lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6511{ 6512 uint32_t intr_mode = LPFC_INTR_ERROR; 6513 int retval, index; 6514 6515 if (cfg_mode == 2) { 6516 /* Preparation before conf_msi mbox cmd */ 6517 retval = 0; 6518 if (!retval) { 6519 /* Now, try to enable MSI-X interrupt mode */ 6520 retval = lpfc_sli4_enable_msix(phba); 6521 if (!retval) { 6522 /* Indicate initialization to MSI-X mode */ 6523 phba->intr_type = MSIX; 6524 intr_mode = 2; 6525 } 6526 } 6527 } 6528 6529 /* Fallback to MSI if MSI-X initialization failed */ 6530 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6531 retval = lpfc_sli4_enable_msi(phba); 6532 if (!retval) { 6533 /* Indicate initialization to MSI mode */ 6534 phba->intr_type = MSI; 6535 intr_mode = 1; 6536 } 6537 } 6538 6539 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6540 if (phba->intr_type == NONE) { 6541 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 6542 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6543 if (!retval) { 6544 /* Indicate initialization to INTx mode */ 6545 phba->intr_type = INTx; 6546 intr_mode = 0; 6547 for (index = 0; index < phba->cfg_fcp_eq_count; 6548 index++) { 6549 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 6550 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 6551 } 6552 } 6553 } 6554 return intr_mode; 6555} 6556 6557/** 6558 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 6559 * @phba: pointer to lpfc hba data structure. 6560 * 6561 * This routine is invoked to disable device interrupt and disassociate 6562 * the driver's interrupt handler(s) from interrupt vector(s) to device 6563 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 6564 * will release the interrupt vector(s) for the message signaled interrupt. 6565 **/ 6566static void 6567lpfc_sli4_disable_intr(struct lpfc_hba *phba) 6568{ 6569 /* Disable the currently initialized interrupt mode */ 6570 if (phba->intr_type == MSIX) 6571 lpfc_sli4_disable_msix(phba); 6572 else if (phba->intr_type == MSI) 6573 lpfc_sli4_disable_msi(phba); 6574 else if (phba->intr_type == INTx) 6575 free_irq(phba->pcidev->irq, phba); 6576 6577 /* Reset interrupt management states */ 6578 phba->intr_type = NONE; 6579 phba->sli.slistat.sli_intr = 0; 6580 6581 return; 6582} 6583 6584/** 6585 * lpfc_unset_hba - Unset SLI3 hba device initialization 6586 * @phba: pointer to lpfc hba data structure. 6587 * 6588 * This routine is invoked to unset the HBA device initialization steps to 6589 * a device with SLI-3 interface spec. 6590 **/ 6591static void 6592lpfc_unset_hba(struct lpfc_hba *phba) 6593{ 6594 struct lpfc_vport *vport = phba->pport; 6595 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6596 6597 spin_lock_irq(shost->host_lock); 6598 vport->load_flag |= FC_UNLOADING; 6599 spin_unlock_irq(shost->host_lock); 6600 6601 lpfc_stop_hba_timers(phba); 6602 6603 phba->pport->work_port_events = 0; 6604 6605 lpfc_sli_hba_down(phba); 6606 6607 lpfc_sli_brdrestart(phba); 6608 6609 lpfc_sli_disable_intr(phba); 6610 6611 return; 6612} 6613 6614/** 6615 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 6616 * @phba: pointer to lpfc hba data structure. 6617 * 6618 * This routine is invoked to unset the HBA device initialization steps to 6619 * a device with SLI-4 interface spec. 6620 **/ 6621static void 6622lpfc_sli4_unset_hba(struct lpfc_hba *phba) 6623{ 6624 struct lpfc_vport *vport = phba->pport; 6625 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6626 6627 spin_lock_irq(shost->host_lock); 6628 vport->load_flag |= FC_UNLOADING; 6629 spin_unlock_irq(shost->host_lock); 6630 6631 phba->pport->work_port_events = 0; 6632 6633 lpfc_sli4_hba_down(phba); 6634 6635 lpfc_sli4_disable_intr(phba); 6636 6637 return; 6638} 6639 6640/** 6641 * lpfc_sli4_hba_unset - Unset the fcoe hba 6642 * @phba: Pointer to HBA context object. 6643 * 6644 * This function is called in the SLI4 code path to reset the HBA's FCoE 6645 * function. The caller is not required to hold any lock. This routine 6646 * issues PCI function reset mailbox command to reset the FCoE function. 6647 * At the end of the function, it calls lpfc_hba_down_post function to 6648 * free any pending commands. 6649 **/ 6650static void 6651lpfc_sli4_hba_unset(struct lpfc_hba *phba) 6652{ 6653 int wait_cnt = 0; 6654 LPFC_MBOXQ_t *mboxq; 6655 6656 lpfc_stop_hba_timers(phba); 6657 phba->sli4_hba.intr_enable = 0; 6658 6659 /* 6660 * Gracefully wait out the potential current outstanding asynchronous 6661 * mailbox command. 6662 */ 6663 6664 /* First, block any pending async mailbox command from posted */ 6665 spin_lock_irq(&phba->hbalock); 6666 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 6667 spin_unlock_irq(&phba->hbalock); 6668 /* Now, trying to wait it out if we can */ 6669 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 6670 msleep(10); 6671 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 6672 break; 6673 } 6674 /* Forcefully release the outstanding mailbox command if timed out */ 6675 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 6676 spin_lock_irq(&phba->hbalock); 6677 mboxq = phba->sli.mbox_active; 6678 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 6679 __lpfc_mbox_cmpl_put(phba, mboxq); 6680 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 6681 phba->sli.mbox_active = NULL; 6682 spin_unlock_irq(&phba->hbalock); 6683 } 6684 6685 /* Tear down the queues in the HBA */ 6686 lpfc_sli4_queue_unset(phba); 6687 6688 /* Disable PCI subsystem interrupt */ 6689 lpfc_sli4_disable_intr(phba); 6690 6691 /* Stop kthread signal shall trigger work_done one more time */ 6692 kthread_stop(phba->worker_thread); 6693 6694 /* Stop the SLI4 device port */ 6695 phba->pport->work_port_events = 0; 6696} 6697 6698/** 6699 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 6700 * @pdev: pointer to PCI device 6701 * @pid: pointer to PCI device identifier 6702 * 6703 * This routine is to be called to attach a device with SLI-3 interface spec 6704 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 6705 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 6706 * information of the device and driver to see if the driver state that it can 6707 * support this kind of device. If the match is successful, the driver core 6708 * invokes this routine. If this routine determines it can claim the HBA, it 6709 * does all the initialization that it needs to do to handle the HBA properly. 6710 * 6711 * Return code 6712 * 0 - driver can claim the device 6713 * negative value - driver can not claim the device 6714 **/ 6715static int __devinit 6716lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 6717{ 6718 struct lpfc_hba *phba; 6719 struct lpfc_vport *vport = NULL; 6720 int error; 6721 uint32_t cfg_mode, intr_mode; 6722 6723 /* Allocate memory for HBA structure */ 6724 phba = lpfc_hba_alloc(pdev); 6725 if (!phba) 6726 return -ENOMEM; 6727 6728 /* Perform generic PCI device enabling operation */ 6729 error = lpfc_enable_pci_dev(phba); 6730 if (error) { 6731 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6732 "1401 Failed to enable pci device.\n"); 6733 goto out_free_phba; 6734 } 6735 6736 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 6737 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 6738 if (error) 6739 goto out_disable_pci_dev; 6740 6741 /* Set up SLI-3 specific device PCI memory space */ 6742 error = lpfc_sli_pci_mem_setup(phba); 6743 if (error) { 6744 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6745 "1402 Failed to set up pci memory space.\n"); 6746 goto out_disable_pci_dev; 6747 } 6748 6749 /* Set up phase-1 common device driver resources */ 6750 error = lpfc_setup_driver_resource_phase1(phba); 6751 if (error) { 6752 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6753 "1403 Failed to set up driver resource.\n"); 6754 goto out_unset_pci_mem_s3; 6755 } 6756 6757 /* Set up SLI-3 specific device driver resources */ 6758 error = lpfc_sli_driver_resource_setup(phba); 6759 if (error) { 6760 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6761 "1404 Failed to set up driver resource.\n"); 6762 goto out_unset_pci_mem_s3; 6763 } 6764 6765 /* Initialize and populate the iocb list per host */ 6766 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 6767 if (error) { 6768 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6769 "1405 Failed to initialize iocb list.\n"); 6770 goto out_unset_driver_resource_s3; 6771 } 6772 6773 /* Set up common device driver resources */ 6774 error = lpfc_setup_driver_resource_phase2(phba); 6775 if (error) { 6776 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6777 "1406 Failed to set up driver resource.\n"); 6778 goto out_free_iocb_list; 6779 } 6780 6781 /* Create SCSI host to the physical port */ 6782 error = lpfc_create_shost(phba); 6783 if (error) { 6784 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6785 "1407 Failed to create scsi host.\n"); 6786 goto out_unset_driver_resource; 6787 } 6788 6789 /* Configure sysfs attributes */ 6790 vport = phba->pport; 6791 error = lpfc_alloc_sysfs_attr(vport); 6792 if (error) { 6793 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6794 "1476 Failed to allocate sysfs attr\n"); 6795 goto out_destroy_shost; 6796 } 6797 6798 /* Now, trying to enable interrupt and bring up the device */ 6799 cfg_mode = phba->cfg_use_msi; 6800 while (true) { 6801 /* Put device to a known state before enabling interrupt */ 6802 lpfc_stop_port(phba); 6803 /* Configure and enable interrupt */ 6804 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 6805 if (intr_mode == LPFC_INTR_ERROR) { 6806 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6807 "0431 Failed to enable interrupt.\n"); 6808 error = -ENODEV; 6809 goto out_free_sysfs_attr; 6810 } 6811 /* SLI-3 HBA setup */ 6812 if (lpfc_sli_hba_setup(phba)) { 6813 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6814 "1477 Failed to set up hba\n"); 6815 error = -ENODEV; 6816 goto out_remove_device; 6817 } 6818 6819 /* Wait 50ms for the interrupts of previous mailbox commands */ 6820 msleep(50); 6821 /* Check active interrupts on message signaled interrupts */ 6822 if (intr_mode == 0 || 6823 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 6824 /* Log the current active interrupt mode */ 6825 phba->intr_mode = intr_mode; 6826 lpfc_log_intr_mode(phba, intr_mode); 6827 break; 6828 } else { 6829 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6830 "0447 Configure interrupt mode (%d) " 6831 "failed active interrupt test.\n", 6832 intr_mode); 6833 /* Disable the current interrupt mode */ 6834 lpfc_sli_disable_intr(phba); 6835 /* Try next level of interrupt mode */ 6836 cfg_mode = --intr_mode; 6837 } 6838 } 6839 6840 /* Perform post initialization setup */ 6841 lpfc_post_init_setup(phba); 6842 6843 /* Check if there are static vports to be created. */ 6844 lpfc_create_static_vport(phba); 6845 6846 return 0; 6847 6848out_remove_device: 6849 lpfc_unset_hba(phba); 6850out_free_sysfs_attr: 6851 lpfc_free_sysfs_attr(vport); 6852out_destroy_shost: 6853 lpfc_destroy_shost(phba); 6854out_unset_driver_resource: 6855 lpfc_unset_driver_resource_phase2(phba); 6856out_free_iocb_list: 6857 lpfc_free_iocb_list(phba); 6858out_unset_driver_resource_s3: 6859 lpfc_sli_driver_resource_unset(phba); 6860out_unset_pci_mem_s3: 6861 lpfc_sli_pci_mem_unset(phba); 6862out_disable_pci_dev: 6863 lpfc_disable_pci_dev(phba); 6864out_free_phba: 6865 lpfc_hba_free(phba); 6866 return error; 6867} 6868 6869/** 6870 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 6871 * @pdev: pointer to PCI device 6872 * 6873 * This routine is to be called to disattach a device with SLI-3 interface 6874 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 6875 * removed from PCI bus, it performs all the necessary cleanup for the HBA 6876 * device to be removed from the PCI subsystem properly. 6877 **/ 6878static void __devexit 6879lpfc_pci_remove_one_s3(struct pci_dev *pdev) 6880{ 6881 struct Scsi_Host *shost = pci_get_drvdata(pdev); 6882 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6883 struct lpfc_vport **vports; 6884 struct lpfc_hba *phba = vport->phba; 6885 int i; 6886 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 6887 6888 spin_lock_irq(&phba->hbalock); 6889 vport->load_flag |= FC_UNLOADING; 6890 spin_unlock_irq(&phba->hbalock); 6891 6892 lpfc_free_sysfs_attr(vport); 6893 6894 /* Release all the vports against this physical port */ 6895 vports = lpfc_create_vport_work_array(phba); 6896 if (vports != NULL) 6897 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 6898 fc_vport_terminate(vports[i]->fc_vport); 6899 lpfc_destroy_vport_work_array(phba, vports); 6900 6901 /* Remove FC host and then SCSI host with the physical port */ 6902 fc_remove_host(shost); 6903 scsi_remove_host(shost); 6904 lpfc_cleanup(vport); 6905 6906 /* 6907 * Bring down the SLI Layer. This step disable all interrupts, 6908 * clears the rings, discards all mailbox commands, and resets 6909 * the HBA. 6910 */ 6911 6912 /* HBA interrupt will be diabled after this call */ 6913 lpfc_sli_hba_down(phba); 6914 /* Stop kthread signal shall trigger work_done one more time */ 6915 kthread_stop(phba->worker_thread); 6916 /* Final cleanup of txcmplq and reset the HBA */ 6917 lpfc_sli_brdrestart(phba); 6918 6919 lpfc_stop_hba_timers(phba); 6920 spin_lock_irq(&phba->hbalock); 6921 list_del_init(&vport->listentry); 6922 spin_unlock_irq(&phba->hbalock); 6923 6924 lpfc_debugfs_terminate(vport); 6925 6926 /* Disable interrupt */ 6927 lpfc_sli_disable_intr(phba); 6928 6929 pci_set_drvdata(pdev, NULL); 6930 scsi_host_put(shost); 6931 6932 /* 6933 * Call scsi_free before mem_free since scsi bufs are released to their 6934 * corresponding pools here. 6935 */ 6936 lpfc_scsi_free(phba); 6937 lpfc_mem_free_all(phba); 6938 6939 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 6940 phba->hbqslimp.virt, phba->hbqslimp.phys); 6941 6942 /* Free resources associated with SLI2 interface */ 6943 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6944 phba->slim2p.virt, phba->slim2p.phys); 6945 6946 /* unmap adapter SLIM and Control Registers */ 6947 iounmap(phba->ctrl_regs_memmap_p); 6948 iounmap(phba->slim_memmap_p); 6949 6950 lpfc_hba_free(phba); 6951 6952 pci_release_selected_regions(pdev, bars); 6953 pci_disable_device(pdev); 6954} 6955 6956/** 6957 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 6958 * @pdev: pointer to PCI device 6959 * @msg: power management message 6960 * 6961 * This routine is to be called from the kernel's PCI subsystem to support 6962 * system Power Management (PM) to device with SLI-3 interface spec. When 6963 * PM invokes this method, it quiesces the device by stopping the driver's 6964 * worker thread for the device, turning off device's interrupt and DMA, 6965 * and bring the device offline. Note that as the driver implements the 6966 * minimum PM requirements to a power-aware driver's PM support for the 6967 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 6968 * to the suspend() method call will be treated as SUSPEND and the driver will 6969 * fully reinitialize its device during resume() method call, the driver will 6970 * set device to PCI_D3hot state in PCI config space instead of setting it 6971 * according to the @msg provided by the PM. 6972 * 6973 * Return code 6974 * 0 - driver suspended the device 6975 * Error otherwise 6976 **/ 6977static int 6978lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 6979{ 6980 struct Scsi_Host *shost = pci_get_drvdata(pdev); 6981 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 6982 6983 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6984 "0473 PCI device Power Management suspend.\n"); 6985 6986 /* Bring down the device */ 6987 lpfc_offline_prep(phba); 6988 lpfc_offline(phba); 6989 kthread_stop(phba->worker_thread); 6990 6991 /* Disable interrupt from device */ 6992 lpfc_sli_disable_intr(phba); 6993 6994 /* Save device state to PCI config space */ 6995 pci_save_state(pdev); 6996 pci_set_power_state(pdev, PCI_D3hot); 6997 6998 return 0; 6999} 7000 7001/** 7002 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 7003 * @pdev: pointer to PCI device 7004 * 7005 * This routine is to be called from the kernel's PCI subsystem to support 7006 * system Power Management (PM) to device with SLI-3 interface spec. When PM 7007 * invokes this method, it restores the device's PCI config space state and 7008 * fully reinitializes the device and brings it online. Note that as the 7009 * driver implements the minimum PM requirements to a power-aware driver's 7010 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 7011 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 7012 * driver will fully reinitialize its device during resume() method call, 7013 * the device will be set to PCI_D0 directly in PCI config space before 7014 * restoring the state. 7015 * 7016 * Return code 7017 * 0 - driver suspended the device 7018 * Error otherwise 7019 **/ 7020static int 7021lpfc_pci_resume_one_s3(struct pci_dev *pdev) 7022{ 7023 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7024 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7025 uint32_t intr_mode; 7026 int error; 7027 7028 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7029 "0452 PCI device Power Management resume.\n"); 7030 7031 /* Restore device state from PCI config space */ 7032 pci_set_power_state(pdev, PCI_D0); 7033 pci_restore_state(pdev); 7034 if (pdev->is_busmaster) 7035 pci_set_master(pdev); 7036 7037 /* Startup the kernel thread for this host adapter. */ 7038 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7039 "lpfc_worker_%d", phba->brd_no); 7040 if (IS_ERR(phba->worker_thread)) { 7041 error = PTR_ERR(phba->worker_thread); 7042 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7043 "0434 PM resume failed to start worker " 7044 "thread: error=x%x.\n", error); 7045 return error; 7046 } 7047 7048 /* Configure and enable interrupt */ 7049 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7050 if (intr_mode == LPFC_INTR_ERROR) { 7051 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7052 "0430 PM resume Failed to enable interrupt\n"); 7053 return -EIO; 7054 } else 7055 phba->intr_mode = intr_mode; 7056 7057 /* Restart HBA and bring it online */ 7058 lpfc_sli_brdrestart(phba); 7059 lpfc_online(phba); 7060 7061 /* Log the current active interrupt mode */ 7062 lpfc_log_intr_mode(phba, phba->intr_mode); 7063 7064 return 0; 7065} 7066 7067/** 7068 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 7069 * @pdev: pointer to PCI device. 7070 * @state: the current PCI connection state. 7071 * 7072 * This routine is called from the PCI subsystem for I/O error handling to 7073 * device with SLI-3 interface spec. This function is called by the PCI 7074 * subsystem after a PCI bus error affecting this device has been detected. 7075 * When this function is invoked, it will need to stop all the I/Os and 7076 * interrupt(s) to the device. Once that is done, it will return 7077 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 7078 * as desired. 7079 * 7080 * Return codes 7081 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7082 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7083 **/ 7084static pci_ers_result_t 7085lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 7086{ 7087 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7088 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7089 struct lpfc_sli *psli = &phba->sli; 7090 struct lpfc_sli_ring *pring; 7091 7092 if (state == pci_channel_io_perm_failure) { 7093 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7094 "0472 PCI channel I/O permanent failure\n"); 7095 /* Block all SCSI devices' I/Os on the host */ 7096 lpfc_scsi_dev_block(phba); 7097 /* Clean up all driver's outstanding SCSI I/Os */ 7098 lpfc_sli_flush_fcp_rings(phba); 7099 return PCI_ERS_RESULT_DISCONNECT; 7100 } 7101 7102 pci_disable_device(pdev); 7103 /* 7104 * There may be I/Os dropped by the firmware. 7105 * Error iocb (I/O) on txcmplq and let the SCSI layer 7106 * retry it after re-establishing link. 7107 */ 7108 pring = &psli->ring[psli->fcp_ring]; 7109 lpfc_sli_abort_iocb_ring(phba, pring); 7110 7111 /* Disable interrupt */ 7112 lpfc_sli_disable_intr(phba); 7113 7114 /* Request a slot reset. */ 7115 return PCI_ERS_RESULT_NEED_RESET; 7116} 7117 7118/** 7119 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 7120 * @pdev: pointer to PCI device. 7121 * 7122 * This routine is called from the PCI subsystem for error handling to 7123 * device with SLI-3 interface spec. This is called after PCI bus has been 7124 * reset to restart the PCI card from scratch, as if from a cold-boot. 7125 * During the PCI subsystem error recovery, after driver returns 7126 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 7127 * recovery and then call this routine before calling the .resume method 7128 * to recover the device. This function will initialize the HBA device, 7129 * enable the interrupt, but it will just put the HBA to offline state 7130 * without passing any I/O traffic. 7131 * 7132 * Return codes 7133 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7134 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7135 */ 7136static pci_ers_result_t 7137lpfc_io_slot_reset_s3(struct pci_dev *pdev) 7138{ 7139 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7140 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7141 struct lpfc_sli *psli = &phba->sli; 7142 uint32_t intr_mode; 7143 7144 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 7145 if (pci_enable_device_mem(pdev)) { 7146 printk(KERN_ERR "lpfc: Cannot re-enable " 7147 "PCI device after reset.\n"); 7148 return PCI_ERS_RESULT_DISCONNECT; 7149 } 7150 7151 pci_restore_state(pdev); 7152 if (pdev->is_busmaster) 7153 pci_set_master(pdev); 7154 7155 spin_lock_irq(&phba->hbalock); 7156 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 7157 spin_unlock_irq(&phba->hbalock); 7158 7159 /* Configure and enable interrupt */ 7160 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7161 if (intr_mode == LPFC_INTR_ERROR) { 7162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7163 "0427 Cannot re-enable interrupt after " 7164 "slot reset.\n"); 7165 return PCI_ERS_RESULT_DISCONNECT; 7166 } else 7167 phba->intr_mode = intr_mode; 7168 7169 /* Take device offline; this will perform cleanup */ 7170 lpfc_offline(phba); 7171 lpfc_sli_brdrestart(phba); 7172 7173 /* Log the current active interrupt mode */ 7174 lpfc_log_intr_mode(phba, phba->intr_mode); 7175 7176 return PCI_ERS_RESULT_RECOVERED; 7177} 7178 7179/** 7180 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 7181 * @pdev: pointer to PCI device 7182 * 7183 * This routine is called from the PCI subsystem for error handling to device 7184 * with SLI-3 interface spec. It is called when kernel error recovery tells 7185 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 7186 * error recovery. After this call, traffic can start to flow from this device 7187 * again. 7188 */ 7189static void 7190lpfc_io_resume_s3(struct pci_dev *pdev) 7191{ 7192 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7193 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7194 7195 lpfc_online(phba); 7196} 7197 7198/** 7199 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 7200 * @phba: pointer to lpfc hba data structure. 7201 * 7202 * returns the number of ELS/CT IOCBs to reserve 7203 **/ 7204int 7205lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 7206{ 7207 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 7208 7209 if (phba->sli_rev == LPFC_SLI_REV4) { 7210 if (max_xri <= 100) 7211 return 4; 7212 else if (max_xri <= 256) 7213 return 8; 7214 else if (max_xri <= 512) 7215 return 16; 7216 else if (max_xri <= 1024) 7217 return 32; 7218 else 7219 return 48; 7220 } else 7221 return 0; 7222} 7223 7224/** 7225 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 7226 * @pdev: pointer to PCI device 7227 * @pid: pointer to PCI device identifier 7228 * 7229 * This routine is called from the kernel's PCI subsystem to device with 7230 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 7231 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 7232 * information of the device and driver to see if the driver state that it 7233 * can support this kind of device. If the match is successful, the driver 7234 * core invokes this routine. If this routine determines it can claim the HBA, 7235 * it does all the initialization that it needs to do to handle the HBA 7236 * properly. 7237 * 7238 * Return code 7239 * 0 - driver can claim the device 7240 * negative value - driver can not claim the device 7241 **/ 7242static int __devinit 7243lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 7244{ 7245 struct lpfc_hba *phba; 7246 struct lpfc_vport *vport = NULL; 7247 int error; 7248 uint32_t cfg_mode, intr_mode; 7249 int mcnt; 7250 7251 /* Allocate memory for HBA structure */ 7252 phba = lpfc_hba_alloc(pdev); 7253 if (!phba) 7254 return -ENOMEM; 7255 7256 /* Perform generic PCI device enabling operation */ 7257 error = lpfc_enable_pci_dev(phba); 7258 if (error) { 7259 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7260 "1409 Failed to enable pci device.\n"); 7261 goto out_free_phba; 7262 } 7263 7264 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 7265 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 7266 if (error) 7267 goto out_disable_pci_dev; 7268 7269 /* Set up SLI-4 specific device PCI memory space */ 7270 error = lpfc_sli4_pci_mem_setup(phba); 7271 if (error) { 7272 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7273 "1410 Failed to set up pci memory space.\n"); 7274 goto out_disable_pci_dev; 7275 } 7276 7277 /* Set up phase-1 common device driver resources */ 7278 error = lpfc_setup_driver_resource_phase1(phba); 7279 if (error) { 7280 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7281 "1411 Failed to set up driver resource.\n"); 7282 goto out_unset_pci_mem_s4; 7283 } 7284 7285 /* Set up SLI-4 Specific device driver resources */ 7286 error = lpfc_sli4_driver_resource_setup(phba); 7287 if (error) { 7288 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7289 "1412 Failed to set up driver resource.\n"); 7290 goto out_unset_pci_mem_s4; 7291 } 7292 7293 /* Initialize and populate the iocb list per host */ 7294 error = lpfc_init_iocb_list(phba, 7295 phba->sli4_hba.max_cfg_param.max_xri); 7296 if (error) { 7297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7298 "1413 Failed to initialize iocb list.\n"); 7299 goto out_unset_driver_resource_s4; 7300 } 7301 7302 /* Set up common device driver resources */ 7303 error = lpfc_setup_driver_resource_phase2(phba); 7304 if (error) { 7305 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7306 "1414 Failed to set up driver resource.\n"); 7307 goto out_free_iocb_list; 7308 } 7309 7310 /* Create SCSI host to the physical port */ 7311 error = lpfc_create_shost(phba); 7312 if (error) { 7313 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7314 "1415 Failed to create scsi host.\n"); 7315 goto out_unset_driver_resource; 7316 } 7317 7318 /* Configure sysfs attributes */ 7319 vport = phba->pport; 7320 error = lpfc_alloc_sysfs_attr(vport); 7321 if (error) { 7322 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7323 "1416 Failed to allocate sysfs attr\n"); 7324 goto out_destroy_shost; 7325 } 7326 7327 /* Now, trying to enable interrupt and bring up the device */ 7328 cfg_mode = phba->cfg_use_msi; 7329 while (true) { 7330 /* Put device to a known state before enabling interrupt */ 7331 lpfc_stop_port(phba); 7332 /* Configure and enable interrupt */ 7333 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 7334 if (intr_mode == LPFC_INTR_ERROR) { 7335 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7336 "0426 Failed to enable interrupt.\n"); 7337 error = -ENODEV; 7338 goto out_free_sysfs_attr; 7339 } 7340 /* Set up SLI-4 HBA */ 7341 if (lpfc_sli4_hba_setup(phba)) { 7342 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7343 "1421 Failed to set up hba\n"); 7344 error = -ENODEV; 7345 goto out_disable_intr; 7346 } 7347 7348 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 7349 if (intr_mode != 0) 7350 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 7351 LPFC_ACT_INTR_CNT); 7352 7353 /* Check active interrupts received only for MSI/MSI-X */ 7354 if (intr_mode == 0 || 7355 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 7356 /* Log the current active interrupt mode */ 7357 phba->intr_mode = intr_mode; 7358 lpfc_log_intr_mode(phba, intr_mode); 7359 break; 7360 } 7361 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7362 "0451 Configure interrupt mode (%d) " 7363 "failed active interrupt test.\n", 7364 intr_mode); 7365 /* Unset the preivous SLI-4 HBA setup */ 7366 lpfc_sli4_unset_hba(phba); 7367 /* Try next level of interrupt mode */ 7368 cfg_mode = --intr_mode; 7369 } 7370 7371 /* Perform post initialization setup */ 7372 lpfc_post_init_setup(phba); 7373 7374 return 0; 7375 7376out_disable_intr: 7377 lpfc_sli4_disable_intr(phba); 7378out_free_sysfs_attr: 7379 lpfc_free_sysfs_attr(vport); 7380out_destroy_shost: 7381 lpfc_destroy_shost(phba); 7382out_unset_driver_resource: 7383 lpfc_unset_driver_resource_phase2(phba); 7384out_free_iocb_list: 7385 lpfc_free_iocb_list(phba); 7386out_unset_driver_resource_s4: 7387 lpfc_sli4_driver_resource_unset(phba); 7388out_unset_pci_mem_s4: 7389 lpfc_sli4_pci_mem_unset(phba); 7390out_disable_pci_dev: 7391 lpfc_disable_pci_dev(phba); 7392out_free_phba: 7393 lpfc_hba_free(phba); 7394 return error; 7395} 7396 7397/** 7398 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 7399 * @pdev: pointer to PCI device 7400 * 7401 * This routine is called from the kernel's PCI subsystem to device with 7402 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 7403 * removed from PCI bus, it performs all the necessary cleanup for the HBA 7404 * device to be removed from the PCI subsystem properly. 7405 **/ 7406static void __devexit 7407lpfc_pci_remove_one_s4(struct pci_dev *pdev) 7408{ 7409 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7410 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7411 struct lpfc_vport **vports; 7412 struct lpfc_hba *phba = vport->phba; 7413 int i; 7414 7415 /* Mark the device unloading flag */ 7416 spin_lock_irq(&phba->hbalock); 7417 vport->load_flag |= FC_UNLOADING; 7418 spin_unlock_irq(&phba->hbalock); 7419 7420 /* Free the HBA sysfs attributes */ 7421 lpfc_free_sysfs_attr(vport); 7422 7423 /* Release all the vports against this physical port */ 7424 vports = lpfc_create_vport_work_array(phba); 7425 if (vports != NULL) 7426 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 7427 fc_vport_terminate(vports[i]->fc_vport); 7428 lpfc_destroy_vport_work_array(phba, vports); 7429 7430 /* Remove FC host and then SCSI host with the physical port */ 7431 fc_remove_host(shost); 7432 scsi_remove_host(shost); 7433 7434 /* Perform cleanup on the physical port */ 7435 lpfc_cleanup(vport); 7436 7437 /* 7438 * Bring down the SLI Layer. This step disables all interrupts, 7439 * clears the rings, discards all mailbox commands, and resets 7440 * the HBA FCoE function. 7441 */ 7442 lpfc_debugfs_terminate(vport); 7443 lpfc_sli4_hba_unset(phba); 7444 7445 spin_lock_irq(&phba->hbalock); 7446 list_del_init(&vport->listentry); 7447 spin_unlock_irq(&phba->hbalock); 7448 7449 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi 7450 * buffers are released to their corresponding pools here. 7451 */ 7452 lpfc_scsi_free(phba); 7453 lpfc_sli4_driver_resource_unset(phba); 7454 7455 /* Unmap adapter Control and Doorbell registers */ 7456 lpfc_sli4_pci_mem_unset(phba); 7457 7458 /* Release PCI resources and disable device's PCI function */ 7459 scsi_host_put(shost); 7460 lpfc_disable_pci_dev(phba); 7461 7462 /* Finally, free the driver's device data structure */ 7463 lpfc_hba_free(phba); 7464 7465 return; 7466} 7467 7468/** 7469 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 7470 * @pdev: pointer to PCI device 7471 * @msg: power management message 7472 * 7473 * This routine is called from the kernel's PCI subsystem to support system 7474 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 7475 * this method, it quiesces the device by stopping the driver's worker 7476 * thread for the device, turning off device's interrupt and DMA, and bring 7477 * the device offline. Note that as the driver implements the minimum PM 7478 * requirements to a power-aware driver's PM support for suspend/resume -- all 7479 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 7480 * method call will be treated as SUSPEND and the driver will fully 7481 * reinitialize its device during resume() method call, the driver will set 7482 * device to PCI_D3hot state in PCI config space instead of setting it 7483 * according to the @msg provided by the PM. 7484 * 7485 * Return code 7486 * 0 - driver suspended the device 7487 * Error otherwise 7488 **/ 7489static int 7490lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 7491{ 7492 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7493 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7494 7495 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7496 "0298 PCI device Power Management suspend.\n"); 7497 7498 /* Bring down the device */ 7499 lpfc_offline_prep(phba); 7500 lpfc_offline(phba); 7501 kthread_stop(phba->worker_thread); 7502 7503 /* Disable interrupt from device */ 7504 lpfc_sli4_disable_intr(phba); 7505 7506 /* Save device state to PCI config space */ 7507 pci_save_state(pdev); 7508 pci_set_power_state(pdev, PCI_D3hot); 7509 7510 return 0; 7511} 7512 7513/** 7514 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 7515 * @pdev: pointer to PCI device 7516 * 7517 * This routine is called from the kernel's PCI subsystem to support system 7518 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 7519 * this method, it restores the device's PCI config space state and fully 7520 * reinitializes the device and brings it online. Note that as the driver 7521 * implements the minimum PM requirements to a power-aware driver's PM for 7522 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 7523 * to the suspend() method call will be treated as SUSPEND and the driver 7524 * will fully reinitialize its device during resume() method call, the device 7525 * will be set to PCI_D0 directly in PCI config space before restoring the 7526 * state. 7527 * 7528 * Return code 7529 * 0 - driver suspended the device 7530 * Error otherwise 7531 **/ 7532static int 7533lpfc_pci_resume_one_s4(struct pci_dev *pdev) 7534{ 7535 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7536 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7537 uint32_t intr_mode; 7538 int error; 7539 7540 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7541 "0292 PCI device Power Management resume.\n"); 7542 7543 /* Restore device state from PCI config space */ 7544 pci_set_power_state(pdev, PCI_D0); 7545 pci_restore_state(pdev); 7546 if (pdev->is_busmaster) 7547 pci_set_master(pdev); 7548 7549 /* Startup the kernel thread for this host adapter. */ 7550 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7551 "lpfc_worker_%d", phba->brd_no); 7552 if (IS_ERR(phba->worker_thread)) { 7553 error = PTR_ERR(phba->worker_thread); 7554 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7555 "0293 PM resume failed to start worker " 7556 "thread: error=x%x.\n", error); 7557 return error; 7558 } 7559 7560 /* Configure and enable interrupt */ 7561 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 7562 if (intr_mode == LPFC_INTR_ERROR) { 7563 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7564 "0294 PM resume Failed to enable interrupt\n"); 7565 return -EIO; 7566 } else 7567 phba->intr_mode = intr_mode; 7568 7569 /* Restart HBA and bring it online */ 7570 lpfc_sli_brdrestart(phba); 7571 lpfc_online(phba); 7572 7573 /* Log the current active interrupt mode */ 7574 lpfc_log_intr_mode(phba, phba->intr_mode); 7575 7576 return 0; 7577} 7578 7579/** 7580 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 7581 * @pdev: pointer to PCI device. 7582 * @state: the current PCI connection state. 7583 * 7584 * This routine is called from the PCI subsystem for error handling to device 7585 * with SLI-4 interface spec. This function is called by the PCI subsystem 7586 * after a PCI bus error affecting this device has been detected. When this 7587 * function is invoked, it will need to stop all the I/Os and interrupt(s) 7588 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 7589 * for the PCI subsystem to perform proper recovery as desired. 7590 * 7591 * Return codes 7592 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7593 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7594 **/ 7595static pci_ers_result_t 7596lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 7597{ 7598 return PCI_ERS_RESULT_NEED_RESET; 7599} 7600 7601/** 7602 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 7603 * @pdev: pointer to PCI device. 7604 * 7605 * This routine is called from the PCI subsystem for error handling to device 7606 * with SLI-4 interface spec. It is called after PCI bus has been reset to 7607 * restart the PCI card from scratch, as if from a cold-boot. During the 7608 * PCI subsystem error recovery, after the driver returns 7609 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 7610 * recovery and then call this routine before calling the .resume method to 7611 * recover the device. This function will initialize the HBA device, enable 7612 * the interrupt, but it will just put the HBA to offline state without 7613 * passing any I/O traffic. 7614 * 7615 * Return codes 7616 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7617 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7618 */ 7619static pci_ers_result_t 7620lpfc_io_slot_reset_s4(struct pci_dev *pdev) 7621{ 7622 return PCI_ERS_RESULT_RECOVERED; 7623} 7624 7625/** 7626 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 7627 * @pdev: pointer to PCI device 7628 * 7629 * This routine is called from the PCI subsystem for error handling to device 7630 * with SLI-4 interface spec. It is called when kernel error recovery tells 7631 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 7632 * error recovery. After this call, traffic can start to flow from this device 7633 * again. 7634 **/ 7635static void 7636lpfc_io_resume_s4(struct pci_dev *pdev) 7637{ 7638 return; 7639} 7640 7641/** 7642 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 7643 * @pdev: pointer to PCI device 7644 * @pid: pointer to PCI device identifier 7645 * 7646 * This routine is to be registered to the kernel's PCI subsystem. When an 7647 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 7648 * at PCI device-specific information of the device and driver to see if the 7649 * driver state that it can support this kind of device. If the match is 7650 * successful, the driver core invokes this routine. This routine dispatches 7651 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 7652 * do all the initialization that it needs to do to handle the HBA device 7653 * properly. 7654 * 7655 * Return code 7656 * 0 - driver can claim the device 7657 * negative value - driver can not claim the device 7658 **/ 7659static int __devinit 7660lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 7661{ 7662 int rc; 7663 struct lpfc_sli_intf intf; 7664 7665 if (pci_read_config_dword(pdev, LPFC_SLIREV_CONF_WORD, &intf.word0)) 7666 return -ENODEV; 7667 7668 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 7669 (bf_get(lpfc_sli_intf_rev, &intf) == LPFC_SLIREV_CONF_SLI4)) 7670 rc = lpfc_pci_probe_one_s4(pdev, pid); 7671 else 7672 rc = lpfc_pci_probe_one_s3(pdev, pid); 7673 7674 return rc; 7675} 7676 7677/** 7678 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 7679 * @pdev: pointer to PCI device 7680 * 7681 * This routine is to be registered to the kernel's PCI subsystem. When an 7682 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 7683 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 7684 * remove routine, which will perform all the necessary cleanup for the 7685 * device to be removed from the PCI subsystem properly. 7686 **/ 7687static void __devexit 7688lpfc_pci_remove_one(struct pci_dev *pdev) 7689{ 7690 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7691 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7692 7693 switch (phba->pci_dev_grp) { 7694 case LPFC_PCI_DEV_LP: 7695 lpfc_pci_remove_one_s3(pdev); 7696 break; 7697 case LPFC_PCI_DEV_OC: 7698 lpfc_pci_remove_one_s4(pdev); 7699 break; 7700 default: 7701 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7702 "1424 Invalid PCI device group: 0x%x\n", 7703 phba->pci_dev_grp); 7704 break; 7705 } 7706 return; 7707} 7708 7709/** 7710 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 7711 * @pdev: pointer to PCI device 7712 * @msg: power management message 7713 * 7714 * This routine is to be registered to the kernel's PCI subsystem to support 7715 * system Power Management (PM). When PM invokes this method, it dispatches 7716 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 7717 * suspend the device. 7718 * 7719 * Return code 7720 * 0 - driver suspended the device 7721 * Error otherwise 7722 **/ 7723static int 7724lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 7725{ 7726 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7727 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7728 int rc = -ENODEV; 7729 7730 switch (phba->pci_dev_grp) { 7731 case LPFC_PCI_DEV_LP: 7732 rc = lpfc_pci_suspend_one_s3(pdev, msg); 7733 break; 7734 case LPFC_PCI_DEV_OC: 7735 rc = lpfc_pci_suspend_one_s4(pdev, msg); 7736 break; 7737 default: 7738 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7739 "1425 Invalid PCI device group: 0x%x\n", 7740 phba->pci_dev_grp); 7741 break; 7742 } 7743 return rc; 7744} 7745 7746/** 7747 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 7748 * @pdev: pointer to PCI device 7749 * 7750 * This routine is to be registered to the kernel's PCI subsystem to support 7751 * system Power Management (PM). When PM invokes this method, it dispatches 7752 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 7753 * resume the device. 7754 * 7755 * Return code 7756 * 0 - driver suspended the device 7757 * Error otherwise 7758 **/ 7759static int 7760lpfc_pci_resume_one(struct pci_dev *pdev) 7761{ 7762 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7763 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7764 int rc = -ENODEV; 7765 7766 switch (phba->pci_dev_grp) { 7767 case LPFC_PCI_DEV_LP: 7768 rc = lpfc_pci_resume_one_s3(pdev); 7769 break; 7770 case LPFC_PCI_DEV_OC: 7771 rc = lpfc_pci_resume_one_s4(pdev); 7772 break; 7773 default: 7774 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7775 "1426 Invalid PCI device group: 0x%x\n", 7776 phba->pci_dev_grp); 7777 break; 7778 } 7779 return rc; 7780} 7781 7782/** 7783 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 7784 * @pdev: pointer to PCI device. 7785 * @state: the current PCI connection state. 7786 * 7787 * This routine is registered to the PCI subsystem for error handling. This 7788 * function is called by the PCI subsystem after a PCI bus error affecting 7789 * this device has been detected. When this routine is invoked, it dispatches 7790 * the action to the proper SLI-3 or SLI-4 device error detected handling 7791 * routine, which will perform the proper error detected operation. 7792 * 7793 * Return codes 7794 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7795 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7796 **/ 7797static pci_ers_result_t 7798lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 7799{ 7800 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7801 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7802 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 7803 7804 switch (phba->pci_dev_grp) { 7805 case LPFC_PCI_DEV_LP: 7806 rc = lpfc_io_error_detected_s3(pdev, state); 7807 break; 7808 case LPFC_PCI_DEV_OC: 7809 rc = lpfc_io_error_detected_s4(pdev, state); 7810 break; 7811 default: 7812 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7813 "1427 Invalid PCI device group: 0x%x\n", 7814 phba->pci_dev_grp); 7815 break; 7816 } 7817 return rc; 7818} 7819 7820/** 7821 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 7822 * @pdev: pointer to PCI device. 7823 * 7824 * This routine is registered to the PCI subsystem for error handling. This 7825 * function is called after PCI bus has been reset to restart the PCI card 7826 * from scratch, as if from a cold-boot. When this routine is invoked, it 7827 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 7828 * routine, which will perform the proper device reset. 7829 * 7830 * Return codes 7831 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7832 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7833 **/ 7834static pci_ers_result_t 7835lpfc_io_slot_reset(struct pci_dev *pdev) 7836{ 7837 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7838 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7839 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 7840 7841 switch (phba->pci_dev_grp) { 7842 case LPFC_PCI_DEV_LP: 7843 rc = lpfc_io_slot_reset_s3(pdev); 7844 break; 7845 case LPFC_PCI_DEV_OC: 7846 rc = lpfc_io_slot_reset_s4(pdev); 7847 break; 7848 default: 7849 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7850 "1428 Invalid PCI device group: 0x%x\n", 7851 phba->pci_dev_grp); 7852 break; 7853 } 7854 return rc; 7855} 7856 7857/** 7858 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 7859 * @pdev: pointer to PCI device 7860 * 7861 * This routine is registered to the PCI subsystem for error handling. It 7862 * is called when kernel error recovery tells the lpfc driver that it is 7863 * OK to resume normal PCI operation after PCI bus error recovery. When 7864 * this routine is invoked, it dispatches the action to the proper SLI-3 7865 * or SLI-4 device io_resume routine, which will resume the device operation. 7866 **/ 7867static void 7868lpfc_io_resume(struct pci_dev *pdev) 7869{ 7870 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7871 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7872 7873 switch (phba->pci_dev_grp) { 7874 case LPFC_PCI_DEV_LP: 7875 lpfc_io_resume_s3(pdev); 7876 break; 7877 case LPFC_PCI_DEV_OC: 7878 lpfc_io_resume_s4(pdev); 7879 break; 7880 default: 7881 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7882 "1429 Invalid PCI device group: 0x%x\n", 7883 phba->pci_dev_grp); 7884 break; 7885 } 7886 return; 7887} 7888 7889static struct pci_device_id lpfc_id_table[] = { 7890 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 7891 PCI_ANY_ID, PCI_ANY_ID, }, 7892 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 7893 PCI_ANY_ID, PCI_ANY_ID, }, 7894 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 7895 PCI_ANY_ID, PCI_ANY_ID, }, 7896 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 7897 PCI_ANY_ID, PCI_ANY_ID, }, 7898 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 7899 PCI_ANY_ID, PCI_ANY_ID, }, 7900 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 7901 PCI_ANY_ID, PCI_ANY_ID, }, 7902 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 7903 PCI_ANY_ID, PCI_ANY_ID, }, 7904 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 7905 PCI_ANY_ID, PCI_ANY_ID, }, 7906 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 7907 PCI_ANY_ID, PCI_ANY_ID, }, 7908 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 7909 PCI_ANY_ID, PCI_ANY_ID, }, 7910 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 7911 PCI_ANY_ID, PCI_ANY_ID, }, 7912 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 7913 PCI_ANY_ID, PCI_ANY_ID, }, 7914 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 7915 PCI_ANY_ID, PCI_ANY_ID, }, 7916 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 7917 PCI_ANY_ID, PCI_ANY_ID, }, 7918 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 7919 PCI_ANY_ID, PCI_ANY_ID, }, 7920 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 7921 PCI_ANY_ID, PCI_ANY_ID, }, 7922 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 7923 PCI_ANY_ID, PCI_ANY_ID, }, 7924 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 7925 PCI_ANY_ID, PCI_ANY_ID, }, 7926 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 7927 PCI_ANY_ID, PCI_ANY_ID, }, 7928 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 7929 PCI_ANY_ID, PCI_ANY_ID, }, 7930 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 7931 PCI_ANY_ID, PCI_ANY_ID, }, 7932 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 7933 PCI_ANY_ID, PCI_ANY_ID, }, 7934 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 7935 PCI_ANY_ID, PCI_ANY_ID, }, 7936 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 7937 PCI_ANY_ID, PCI_ANY_ID, }, 7938 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 7939 PCI_ANY_ID, PCI_ANY_ID, }, 7940 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 7941 PCI_ANY_ID, PCI_ANY_ID, }, 7942 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 7943 PCI_ANY_ID, PCI_ANY_ID, }, 7944 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 7945 PCI_ANY_ID, PCI_ANY_ID, }, 7946 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 7947 PCI_ANY_ID, PCI_ANY_ID, }, 7948 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 7949 PCI_ANY_ID, PCI_ANY_ID, }, 7950 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 7951 PCI_ANY_ID, PCI_ANY_ID, }, 7952 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 7953 PCI_ANY_ID, PCI_ANY_ID, }, 7954 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 7955 PCI_ANY_ID, PCI_ANY_ID, }, 7956 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 7957 PCI_ANY_ID, PCI_ANY_ID, }, 7958 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 7959 PCI_ANY_ID, PCI_ANY_ID, }, 7960 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 7961 PCI_ANY_ID, PCI_ANY_ID, }, 7962 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 7963 PCI_ANY_ID, PCI_ANY_ID, }, 7964 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 7965 PCI_ANY_ID, PCI_ANY_ID, }, 7966 { 0 } 7967}; 7968 7969MODULE_DEVICE_TABLE(pci, lpfc_id_table); 7970 7971static struct pci_error_handlers lpfc_err_handler = { 7972 .error_detected = lpfc_io_error_detected, 7973 .slot_reset = lpfc_io_slot_reset, 7974 .resume = lpfc_io_resume, 7975}; 7976 7977static struct pci_driver lpfc_driver = { 7978 .name = LPFC_DRIVER_NAME, 7979 .id_table = lpfc_id_table, 7980 .probe = lpfc_pci_probe_one, 7981 .remove = __devexit_p(lpfc_pci_remove_one), 7982 .suspend = lpfc_pci_suspend_one, 7983 .resume = lpfc_pci_resume_one, 7984 .err_handler = &lpfc_err_handler, 7985}; 7986 7987/** 7988 * lpfc_init - lpfc module initialization routine 7989 * 7990 * This routine is to be invoked when the lpfc module is loaded into the 7991 * kernel. The special kernel macro module_init() is used to indicate the 7992 * role of this routine to the kernel as lpfc module entry point. 7993 * 7994 * Return codes 7995 * 0 - successful 7996 * -ENOMEM - FC attach transport failed 7997 * all others - failed 7998 */ 7999static int __init 8000lpfc_init(void) 8001{ 8002 int error = 0; 8003 8004 printk(LPFC_MODULE_DESC "\n"); 8005 printk(LPFC_COPYRIGHT "\n"); 8006 8007 if (lpfc_enable_npiv) { 8008 lpfc_transport_functions.vport_create = lpfc_vport_create; 8009 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 8010 } 8011 lpfc_transport_template = 8012 fc_attach_transport(&lpfc_transport_functions); 8013 if (lpfc_transport_template == NULL) 8014 return -ENOMEM; 8015 if (lpfc_enable_npiv) { 8016 lpfc_vport_transport_template = 8017 fc_attach_transport(&lpfc_vport_transport_functions); 8018 if (lpfc_vport_transport_template == NULL) { 8019 fc_release_transport(lpfc_transport_template); 8020 return -ENOMEM; 8021 } 8022 } 8023 error = pci_register_driver(&lpfc_driver); 8024 if (error) { 8025 fc_release_transport(lpfc_transport_template); 8026 if (lpfc_enable_npiv) 8027 fc_release_transport(lpfc_vport_transport_template); 8028 } 8029 8030 return error; 8031} 8032 8033/** 8034 * lpfc_exit - lpfc module removal routine 8035 * 8036 * This routine is invoked when the lpfc module is removed from the kernel. 8037 * The special kernel macro module_exit() is used to indicate the role of 8038 * this routine to the kernel as lpfc module exit point. 8039 */ 8040static void __exit 8041lpfc_exit(void) 8042{ 8043 pci_unregister_driver(&lpfc_driver); 8044 fc_release_transport(lpfc_transport_template); 8045 if (lpfc_enable_npiv) 8046 fc_release_transport(lpfc_vport_transport_template); 8047 if (_dump_buf_data) { 8048 printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_data " 8049 "at 0x%p\n", 8050 (1L << _dump_buf_data_order), _dump_buf_data); 8051 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 8052 } 8053 8054 if (_dump_buf_dif) { 8055 printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_dif " 8056 "at 0x%p\n", 8057 (1L << _dump_buf_dif_order), _dump_buf_dif); 8058 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 8059 } 8060} 8061 8062module_init(lpfc_init); 8063module_exit(lpfc_exit); 8064MODULE_LICENSE("GPL"); 8065MODULE_DESCRIPTION(LPFC_MODULE_DESC); 8066MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 8067MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 8068