lpfc_init.c revision 19ca760979e4be41a3eb215fb8d0e96637161947
1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2010 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 10 * modify it under the terms of version 2 of the GNU General * 11 * Public License as published by the Free Software Foundation. * 12 * This program is distributed in the hope that it will be useful. * 13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17 * TO BE LEGALLY INVALID. See the GNU General Public License for * 18 * more details, a copy of which can be found in the file COPYING * 19 * included with this package. * 20 *******************************************************************/ 21 22#include <linux/blkdev.h> 23#include <linux/delay.h> 24#include <linux/dma-mapping.h> 25#include <linux/idr.h> 26#include <linux/interrupt.h> 27#include <linux/kthread.h> 28#include <linux/pci.h> 29#include <linux/spinlock.h> 30#include <linux/ctype.h> 31#include <linux/aer.h> 32#include <linux/slab.h> 33 34#include <scsi/scsi.h> 35#include <scsi/scsi_device.h> 36#include <scsi/scsi_host.h> 37#include <scsi/scsi_transport_fc.h> 38 39#include "lpfc_hw4.h" 40#include "lpfc_hw.h" 41#include "lpfc_sli.h" 42#include "lpfc_sli4.h" 43#include "lpfc_nl.h" 44#include "lpfc_disc.h" 45#include "lpfc_scsi.h" 46#include "lpfc.h" 47#include "lpfc_logmsg.h" 48#include "lpfc_crtn.h" 49#include "lpfc_vport.h" 50#include "lpfc_version.h" 51 52char *_dump_buf_data; 53unsigned long _dump_buf_data_order; 54char *_dump_buf_dif; 55unsigned long _dump_buf_dif_order; 56spinlock_t _dump_buf_lock; 57 58static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 59static int lpfc_post_rcv_buf(struct lpfc_hba *); 60static int lpfc_sli4_queue_create(struct lpfc_hba *); 61static void lpfc_sli4_queue_destroy(struct lpfc_hba *); 62static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 63static int lpfc_setup_endian_order(struct lpfc_hba *); 64static int lpfc_sli4_read_config(struct lpfc_hba *); 65static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 66static void lpfc_free_sgl_list(struct lpfc_hba *); 67static int lpfc_init_sgl_list(struct lpfc_hba *); 68static int lpfc_init_active_sgl_array(struct lpfc_hba *); 69static void lpfc_free_active_sgl(struct lpfc_hba *); 70static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 71static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 72static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 73static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 74static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 75 76static struct scsi_transport_template *lpfc_transport_template = NULL; 77static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 78static DEFINE_IDR(lpfc_hba_index); 79 80/** 81 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 82 * @phba: pointer to lpfc hba data structure. 83 * 84 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 85 * mailbox command. It retrieves the revision information from the HBA and 86 * collects the Vital Product Data (VPD) about the HBA for preparing the 87 * configuration of the HBA. 88 * 89 * Return codes: 90 * 0 - success. 91 * -ERESTART - requests the SLI layer to reset the HBA and try again. 92 * Any other value - indicates an error. 93 **/ 94int 95lpfc_config_port_prep(struct lpfc_hba *phba) 96{ 97 lpfc_vpd_t *vp = &phba->vpd; 98 int i = 0, rc; 99 LPFC_MBOXQ_t *pmb; 100 MAILBOX_t *mb; 101 char *lpfc_vpd_data = NULL; 102 uint16_t offset = 0; 103 static char licensed[56] = 104 "key unlock for use with gnu public licensed code only\0"; 105 static int init_key = 1; 106 107 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 108 if (!pmb) { 109 phba->link_state = LPFC_HBA_ERROR; 110 return -ENOMEM; 111 } 112 113 mb = &pmb->u.mb; 114 phba->link_state = LPFC_INIT_MBX_CMDS; 115 116 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 117 if (init_key) { 118 uint32_t *ptext = (uint32_t *) licensed; 119 120 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 121 *ptext = cpu_to_be32(*ptext); 122 init_key = 0; 123 } 124 125 lpfc_read_nv(phba, pmb); 126 memset((char*)mb->un.varRDnvp.rsvd3, 0, 127 sizeof (mb->un.varRDnvp.rsvd3)); 128 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 129 sizeof (licensed)); 130 131 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 132 133 if (rc != MBX_SUCCESS) { 134 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 135 "0324 Config Port initialization " 136 "error, mbxCmd x%x READ_NVPARM, " 137 "mbxStatus x%x\n", 138 mb->mbxCommand, mb->mbxStatus); 139 mempool_free(pmb, phba->mbox_mem_pool); 140 return -ERESTART; 141 } 142 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 143 sizeof(phba->wwnn)); 144 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 145 sizeof(phba->wwpn)); 146 } 147 148 phba->sli3_options = 0x0; 149 150 /* Setup and issue mailbox READ REV command */ 151 lpfc_read_rev(phba, pmb); 152 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 153 if (rc != MBX_SUCCESS) { 154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 155 "0439 Adapter failed to init, mbxCmd x%x " 156 "READ_REV, mbxStatus x%x\n", 157 mb->mbxCommand, mb->mbxStatus); 158 mempool_free( pmb, phba->mbox_mem_pool); 159 return -ERESTART; 160 } 161 162 163 /* 164 * The value of rr must be 1 since the driver set the cv field to 1. 165 * This setting requires the FW to set all revision fields. 166 */ 167 if (mb->un.varRdRev.rr == 0) { 168 vp->rev.rBit = 0; 169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 170 "0440 Adapter failed to init, READ_REV has " 171 "missing revision information.\n"); 172 mempool_free(pmb, phba->mbox_mem_pool); 173 return -ERESTART; 174 } 175 176 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 177 mempool_free(pmb, phba->mbox_mem_pool); 178 return -EINVAL; 179 } 180 181 /* Save information as VPD data */ 182 vp->rev.rBit = 1; 183 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 184 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 185 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 186 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 187 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 188 vp->rev.biuRev = mb->un.varRdRev.biuRev; 189 vp->rev.smRev = mb->un.varRdRev.smRev; 190 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 191 vp->rev.endecRev = mb->un.varRdRev.endecRev; 192 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 193 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 194 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 195 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 196 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 197 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 198 199 /* If the sli feature level is less then 9, we must 200 * tear down all RPIs and VPIs on link down if NPIV 201 * is enabled. 202 */ 203 if (vp->rev.feaLevelHigh < 9) 204 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 205 206 if (lpfc_is_LC_HBA(phba->pcidev->device)) 207 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 208 sizeof (phba->RandomData)); 209 210 /* Get adapter VPD information */ 211 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 212 if (!lpfc_vpd_data) 213 goto out_free_mbox; 214 215 do { 216 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 217 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 218 219 if (rc != MBX_SUCCESS) { 220 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 221 "0441 VPD not present on adapter, " 222 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 223 mb->mbxCommand, mb->mbxStatus); 224 mb->un.varDmp.word_cnt = 0; 225 } 226 /* dump mem may return a zero when finished or we got a 227 * mailbox error, either way we are done. 228 */ 229 if (mb->un.varDmp.word_cnt == 0) 230 break; 231 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 232 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 233 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 234 lpfc_vpd_data + offset, 235 mb->un.varDmp.word_cnt); 236 offset += mb->un.varDmp.word_cnt; 237 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 238 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 239 240 kfree(lpfc_vpd_data); 241out_free_mbox: 242 mempool_free(pmb, phba->mbox_mem_pool); 243 return 0; 244} 245 246/** 247 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 248 * @phba: pointer to lpfc hba data structure. 249 * @pmboxq: pointer to the driver internal queue element for mailbox command. 250 * 251 * This is the completion handler for driver's configuring asynchronous event 252 * mailbox command to the device. If the mailbox command returns successfully, 253 * it will set internal async event support flag to 1; otherwise, it will 254 * set internal async event support flag to 0. 255 **/ 256static void 257lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 258{ 259 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 260 phba->temp_sensor_support = 1; 261 else 262 phba->temp_sensor_support = 0; 263 mempool_free(pmboxq, phba->mbox_mem_pool); 264 return; 265} 266 267/** 268 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 269 * @phba: pointer to lpfc hba data structure. 270 * @pmboxq: pointer to the driver internal queue element for mailbox command. 271 * 272 * This is the completion handler for dump mailbox command for getting 273 * wake up parameters. When this command complete, the response contain 274 * Option rom version of the HBA. This function translate the version number 275 * into a human readable string and store it in OptionROMVersion. 276 **/ 277static void 278lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 279{ 280 struct prog_id *prg; 281 uint32_t prog_id_word; 282 char dist = ' '; 283 /* character array used for decoding dist type. */ 284 char dist_char[] = "nabx"; 285 286 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 287 mempool_free(pmboxq, phba->mbox_mem_pool); 288 return; 289 } 290 291 prg = (struct prog_id *) &prog_id_word; 292 293 /* word 7 contain option rom version */ 294 prog_id_word = pmboxq->u.mb.un.varWords[7]; 295 296 /* Decode the Option rom version word to a readable string */ 297 if (prg->dist < 4) 298 dist = dist_char[prg->dist]; 299 300 if ((prg->dist == 3) && (prg->num == 0)) 301 sprintf(phba->OptionROMVersion, "%d.%d%d", 302 prg->ver, prg->rev, prg->lev); 303 else 304 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 305 prg->ver, prg->rev, prg->lev, 306 dist, prg->num); 307 mempool_free(pmboxq, phba->mbox_mem_pool); 308 return; 309} 310 311/** 312 * lpfc_config_port_post - Perform lpfc initialization after config port 313 * @phba: pointer to lpfc hba data structure. 314 * 315 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 316 * command call. It performs all internal resource and state setups on the 317 * port: post IOCB buffers, enable appropriate host interrupt attentions, 318 * ELS ring timers, etc. 319 * 320 * Return codes 321 * 0 - success. 322 * Any other value - error. 323 **/ 324int 325lpfc_config_port_post(struct lpfc_hba *phba) 326{ 327 struct lpfc_vport *vport = phba->pport; 328 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 329 LPFC_MBOXQ_t *pmb; 330 MAILBOX_t *mb; 331 struct lpfc_dmabuf *mp; 332 struct lpfc_sli *psli = &phba->sli; 333 uint32_t status, timeout; 334 int i, j; 335 int rc; 336 337 spin_lock_irq(&phba->hbalock); 338 /* 339 * If the Config port completed correctly the HBA is not 340 * over heated any more. 341 */ 342 if (phba->over_temp_state == HBA_OVER_TEMP) 343 phba->over_temp_state = HBA_NORMAL_TEMP; 344 spin_unlock_irq(&phba->hbalock); 345 346 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 347 if (!pmb) { 348 phba->link_state = LPFC_HBA_ERROR; 349 return -ENOMEM; 350 } 351 mb = &pmb->u.mb; 352 353 /* Get login parameters for NID. */ 354 rc = lpfc_read_sparam(phba, pmb, 0); 355 if (rc) { 356 mempool_free(pmb, phba->mbox_mem_pool); 357 return -ENOMEM; 358 } 359 360 pmb->vport = vport; 361 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 362 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 363 "0448 Adapter failed init, mbxCmd x%x " 364 "READ_SPARM mbxStatus x%x\n", 365 mb->mbxCommand, mb->mbxStatus); 366 phba->link_state = LPFC_HBA_ERROR; 367 mp = (struct lpfc_dmabuf *) pmb->context1; 368 mempool_free(pmb, phba->mbox_mem_pool); 369 lpfc_mbuf_free(phba, mp->virt, mp->phys); 370 kfree(mp); 371 return -EIO; 372 } 373 374 mp = (struct lpfc_dmabuf *) pmb->context1; 375 376 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 377 lpfc_mbuf_free(phba, mp->virt, mp->phys); 378 kfree(mp); 379 pmb->context1 = NULL; 380 381 if (phba->cfg_soft_wwnn) 382 u64_to_wwn(phba->cfg_soft_wwnn, 383 vport->fc_sparam.nodeName.u.wwn); 384 if (phba->cfg_soft_wwpn) 385 u64_to_wwn(phba->cfg_soft_wwpn, 386 vport->fc_sparam.portName.u.wwn); 387 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 388 sizeof (struct lpfc_name)); 389 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 390 sizeof (struct lpfc_name)); 391 392 /* Update the fc_host data structures with new wwn. */ 393 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 394 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 395 fc_host_max_npiv_vports(shost) = phba->max_vpi; 396 397 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 398 /* This should be consolidated into parse_vpd ? - mr */ 399 if (phba->SerialNumber[0] == 0) { 400 uint8_t *outptr; 401 402 outptr = &vport->fc_nodename.u.s.IEEE[0]; 403 for (i = 0; i < 12; i++) { 404 status = *outptr++; 405 j = ((status & 0xf0) >> 4); 406 if (j <= 9) 407 phba->SerialNumber[i] = 408 (char)((uint8_t) 0x30 + (uint8_t) j); 409 else 410 phba->SerialNumber[i] = 411 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 412 i++; 413 j = (status & 0xf); 414 if (j <= 9) 415 phba->SerialNumber[i] = 416 (char)((uint8_t) 0x30 + (uint8_t) j); 417 else 418 phba->SerialNumber[i] = 419 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 420 } 421 } 422 423 lpfc_read_config(phba, pmb); 424 pmb->vport = vport; 425 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 426 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 427 "0453 Adapter failed to init, mbxCmd x%x " 428 "READ_CONFIG, mbxStatus x%x\n", 429 mb->mbxCommand, mb->mbxStatus); 430 phba->link_state = LPFC_HBA_ERROR; 431 mempool_free( pmb, phba->mbox_mem_pool); 432 return -EIO; 433 } 434 435 /* Check if the port is disabled */ 436 lpfc_sli_read_link_ste(phba); 437 438 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 439 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 440 phba->cfg_hba_queue_depth = 441 (mb->un.varRdConfig.max_xri + 1) - 442 lpfc_sli4_get_els_iocb_cnt(phba); 443 444 phba->lmt = mb->un.varRdConfig.lmt; 445 446 /* Get the default values for Model Name and Description */ 447 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 448 449 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G) 450 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) 451 && !(phba->lmt & LMT_1Gb)) 452 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) 453 && !(phba->lmt & LMT_2Gb)) 454 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) 455 && !(phba->lmt & LMT_4Gb)) 456 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) 457 && !(phba->lmt & LMT_8Gb)) 458 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) 459 && !(phba->lmt & LMT_10Gb)) 460 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) 461 && !(phba->lmt & LMT_16Gb))) { 462 /* Reset link speed to auto */ 463 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT, 464 "1302 Invalid speed for this board: " 465 "Reset link speed to auto: x%x\n", 466 phba->cfg_link_speed); 467 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 468 } 469 470 phba->link_state = LPFC_LINK_DOWN; 471 472 /* Only process IOCBs on ELS ring till hba_state is READY */ 473 if (psli->ring[psli->extra_ring].cmdringaddr) 474 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 475 if (psli->ring[psli->fcp_ring].cmdringaddr) 476 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 477 if (psli->ring[psli->next_ring].cmdringaddr) 478 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 479 480 /* Post receive buffers for desired rings */ 481 if (phba->sli_rev != 3) 482 lpfc_post_rcv_buf(phba); 483 484 /* 485 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 486 */ 487 if (phba->intr_type == MSIX) { 488 rc = lpfc_config_msi(phba, pmb); 489 if (rc) { 490 mempool_free(pmb, phba->mbox_mem_pool); 491 return -EIO; 492 } 493 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 494 if (rc != MBX_SUCCESS) { 495 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 496 "0352 Config MSI mailbox command " 497 "failed, mbxCmd x%x, mbxStatus x%x\n", 498 pmb->u.mb.mbxCommand, 499 pmb->u.mb.mbxStatus); 500 mempool_free(pmb, phba->mbox_mem_pool); 501 return -EIO; 502 } 503 } 504 505 spin_lock_irq(&phba->hbalock); 506 /* Initialize ERATT handling flag */ 507 phba->hba_flag &= ~HBA_ERATT_HANDLED; 508 509 /* Enable appropriate host interrupts */ 510 status = readl(phba->HCregaddr); 511 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 512 if (psli->num_rings > 0) 513 status |= HC_R0INT_ENA; 514 if (psli->num_rings > 1) 515 status |= HC_R1INT_ENA; 516 if (psli->num_rings > 2) 517 status |= HC_R2INT_ENA; 518 if (psli->num_rings > 3) 519 status |= HC_R3INT_ENA; 520 521 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 522 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 523 status &= ~(HC_R0INT_ENA); 524 525 writel(status, phba->HCregaddr); 526 readl(phba->HCregaddr); /* flush */ 527 spin_unlock_irq(&phba->hbalock); 528 529 /* Set up ring-0 (ELS) timer */ 530 timeout = phba->fc_ratov * 2; 531 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 532 /* Set up heart beat (HB) timer */ 533 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 534 phba->hb_outstanding = 0; 535 phba->last_completion_time = jiffies; 536 /* Set up error attention (ERATT) polling timer */ 537 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 538 539 if (phba->hba_flag & LINK_DISABLED) { 540 lpfc_printf_log(phba, 541 KERN_ERR, LOG_INIT, 542 "2598 Adapter Link is disabled.\n"); 543 lpfc_down_link(phba, pmb); 544 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 545 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 546 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 547 lpfc_printf_log(phba, 548 KERN_ERR, LOG_INIT, 549 "2599 Adapter failed to issue DOWN_LINK" 550 " mbox command rc 0x%x\n", rc); 551 552 mempool_free(pmb, phba->mbox_mem_pool); 553 return -EIO; 554 } 555 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 556 lpfc_init_link(phba, pmb, phba->cfg_topology, 557 phba->cfg_link_speed); 558 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 559 lpfc_set_loopback_flag(phba); 560 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 561 if (rc != MBX_SUCCESS) { 562 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 563 "0454 Adapter failed to init, mbxCmd x%x " 564 "INIT_LINK, mbxStatus x%x\n", 565 mb->mbxCommand, mb->mbxStatus); 566 567 /* Clear all interrupt enable conditions */ 568 writel(0, phba->HCregaddr); 569 readl(phba->HCregaddr); /* flush */ 570 /* Clear all pending interrupts */ 571 writel(0xffffffff, phba->HAregaddr); 572 readl(phba->HAregaddr); /* flush */ 573 574 phba->link_state = LPFC_HBA_ERROR; 575 if (rc != MBX_BUSY) 576 mempool_free(pmb, phba->mbox_mem_pool); 577 return -EIO; 578 } 579 } 580 /* MBOX buffer will be freed in mbox compl */ 581 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 582 if (!pmb) { 583 phba->link_state = LPFC_HBA_ERROR; 584 return -ENOMEM; 585 } 586 587 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 588 pmb->mbox_cmpl = lpfc_config_async_cmpl; 589 pmb->vport = phba->pport; 590 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 591 592 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 593 lpfc_printf_log(phba, 594 KERN_ERR, 595 LOG_INIT, 596 "0456 Adapter failed to issue " 597 "ASYNCEVT_ENABLE mbox status x%x\n", 598 rc); 599 mempool_free(pmb, phba->mbox_mem_pool); 600 } 601 602 /* Get Option rom version */ 603 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 604 if (!pmb) { 605 phba->link_state = LPFC_HBA_ERROR; 606 return -ENOMEM; 607 } 608 609 lpfc_dump_wakeup_param(phba, pmb); 610 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 611 pmb->vport = phba->pport; 612 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 613 614 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 616 "to get Option ROM version status x%x\n", rc); 617 mempool_free(pmb, phba->mbox_mem_pool); 618 } 619 620 return 0; 621} 622 623/** 624 * lpfc_hba_init_link - Initialize the FC link 625 * @phba: pointer to lpfc hba data structure. 626 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 627 * 628 * This routine will issue the INIT_LINK mailbox command call. 629 * It is available to other drivers through the lpfc_hba data 630 * structure for use as a delayed link up mechanism with the 631 * module parameter lpfc_suppress_link_up. 632 * 633 * Return code 634 * 0 - success 635 * Any other value - error 636 **/ 637int 638lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 639{ 640 struct lpfc_vport *vport = phba->pport; 641 LPFC_MBOXQ_t *pmb; 642 MAILBOX_t *mb; 643 int rc; 644 645 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 646 if (!pmb) { 647 phba->link_state = LPFC_HBA_ERROR; 648 return -ENOMEM; 649 } 650 mb = &pmb->u.mb; 651 pmb->vport = vport; 652 653 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed); 654 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 655 lpfc_set_loopback_flag(phba); 656 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 657 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 658 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 659 "0498 Adapter failed to init, mbxCmd x%x " 660 "INIT_LINK, mbxStatus x%x\n", 661 mb->mbxCommand, mb->mbxStatus); 662 if (phba->sli_rev <= LPFC_SLI_REV3) { 663 /* Clear all interrupt enable conditions */ 664 writel(0, phba->HCregaddr); 665 readl(phba->HCregaddr); /* flush */ 666 /* Clear all pending interrupts */ 667 writel(0xffffffff, phba->HAregaddr); 668 readl(phba->HAregaddr); /* flush */ 669 } 670 phba->link_state = LPFC_HBA_ERROR; 671 if (rc != MBX_BUSY || flag == MBX_POLL) 672 mempool_free(pmb, phba->mbox_mem_pool); 673 return -EIO; 674 } 675 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 676 if (flag == MBX_POLL) 677 mempool_free(pmb, phba->mbox_mem_pool); 678 679 return 0; 680} 681 682/** 683 * lpfc_hba_down_link - this routine downs the FC link 684 * @phba: pointer to lpfc hba data structure. 685 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 686 * 687 * This routine will issue the DOWN_LINK mailbox command call. 688 * It is available to other drivers through the lpfc_hba data 689 * structure for use to stop the link. 690 * 691 * Return code 692 * 0 - success 693 * Any other value - error 694 **/ 695int 696lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 697{ 698 LPFC_MBOXQ_t *pmb; 699 int rc; 700 701 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 702 if (!pmb) { 703 phba->link_state = LPFC_HBA_ERROR; 704 return -ENOMEM; 705 } 706 707 lpfc_printf_log(phba, 708 KERN_ERR, LOG_INIT, 709 "0491 Adapter Link is disabled.\n"); 710 lpfc_down_link(phba, pmb); 711 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 712 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 713 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 714 lpfc_printf_log(phba, 715 KERN_ERR, LOG_INIT, 716 "2522 Adapter failed to issue DOWN_LINK" 717 " mbox command rc 0x%x\n", rc); 718 719 mempool_free(pmb, phba->mbox_mem_pool); 720 return -EIO; 721 } 722 if (flag == MBX_POLL) 723 mempool_free(pmb, phba->mbox_mem_pool); 724 725 return 0; 726} 727 728/** 729 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 730 * @phba: pointer to lpfc HBA data structure. 731 * 732 * This routine will do LPFC uninitialization before the HBA is reset when 733 * bringing down the SLI Layer. 734 * 735 * Return codes 736 * 0 - success. 737 * Any other value - error. 738 **/ 739int 740lpfc_hba_down_prep(struct lpfc_hba *phba) 741{ 742 struct lpfc_vport **vports; 743 int i; 744 745 if (phba->sli_rev <= LPFC_SLI_REV3) { 746 /* Disable interrupts */ 747 writel(0, phba->HCregaddr); 748 readl(phba->HCregaddr); /* flush */ 749 } 750 751 if (phba->pport->load_flag & FC_UNLOADING) 752 lpfc_cleanup_discovery_resources(phba->pport); 753 else { 754 vports = lpfc_create_vport_work_array(phba); 755 if (vports != NULL) 756 for (i = 0; i <= phba->max_vports && 757 vports[i] != NULL; i++) 758 lpfc_cleanup_discovery_resources(vports[i]); 759 lpfc_destroy_vport_work_array(phba, vports); 760 } 761 return 0; 762} 763 764/** 765 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 766 * @phba: pointer to lpfc HBA data structure. 767 * 768 * This routine will do uninitialization after the HBA is reset when bring 769 * down the SLI Layer. 770 * 771 * Return codes 772 * 0 - success. 773 * Any other value - error. 774 **/ 775static int 776lpfc_hba_down_post_s3(struct lpfc_hba *phba) 777{ 778 struct lpfc_sli *psli = &phba->sli; 779 struct lpfc_sli_ring *pring; 780 struct lpfc_dmabuf *mp, *next_mp; 781 LIST_HEAD(completions); 782 int i; 783 784 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 785 lpfc_sli_hbqbuf_free_all(phba); 786 else { 787 /* Cleanup preposted buffers on the ELS ring */ 788 pring = &psli->ring[LPFC_ELS_RING]; 789 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 790 list_del(&mp->list); 791 pring->postbufq_cnt--; 792 lpfc_mbuf_free(phba, mp->virt, mp->phys); 793 kfree(mp); 794 } 795 } 796 797 spin_lock_irq(&phba->hbalock); 798 for (i = 0; i < psli->num_rings; i++) { 799 pring = &psli->ring[i]; 800 801 /* At this point in time the HBA is either reset or DOA. Either 802 * way, nothing should be on txcmplq as it will NEVER complete. 803 */ 804 list_splice_init(&pring->txcmplq, &completions); 805 pring->txcmplq_cnt = 0; 806 spin_unlock_irq(&phba->hbalock); 807 808 /* Cancel all the IOCBs from the completions list */ 809 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 810 IOERR_SLI_ABORTED); 811 812 lpfc_sli_abort_iocb_ring(phba, pring); 813 spin_lock_irq(&phba->hbalock); 814 } 815 spin_unlock_irq(&phba->hbalock); 816 817 return 0; 818} 819 820/** 821 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 822 * @phba: pointer to lpfc HBA data structure. 823 * 824 * This routine will do uninitialization after the HBA is reset when bring 825 * down the SLI Layer. 826 * 827 * Return codes 828 * 0 - success. 829 * Any other value - error. 830 **/ 831static int 832lpfc_hba_down_post_s4(struct lpfc_hba *phba) 833{ 834 struct lpfc_scsi_buf *psb, *psb_next; 835 LIST_HEAD(aborts); 836 int ret; 837 unsigned long iflag = 0; 838 struct lpfc_sglq *sglq_entry = NULL; 839 840 ret = lpfc_hba_down_post_s3(phba); 841 if (ret) 842 return ret; 843 /* At this point in time the HBA is either reset or DOA. Either 844 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 845 * on the lpfc_sgl_list so that it can either be freed if the 846 * driver is unloading or reposted if the driver is restarting 847 * the port. 848 */ 849 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 850 /* scsl_buf_list */ 851 /* abts_sgl_list_lock required because worker thread uses this 852 * list. 853 */ 854 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 855 list_for_each_entry(sglq_entry, 856 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 857 sglq_entry->state = SGL_FREED; 858 859 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 860 &phba->sli4_hba.lpfc_sgl_list); 861 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 862 /* abts_scsi_buf_list_lock required because worker thread uses this 863 * list. 864 */ 865 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 866 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 867 &aborts); 868 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 869 spin_unlock_irq(&phba->hbalock); 870 871 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 872 psb->pCmd = NULL; 873 psb->status = IOSTAT_SUCCESS; 874 } 875 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 876 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 877 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 878 return 0; 879} 880 881/** 882 * lpfc_hba_down_post - Wrapper func for hba down post routine 883 * @phba: pointer to lpfc HBA data structure. 884 * 885 * This routine wraps the actual SLI3 or SLI4 routine for performing 886 * uninitialization after the HBA is reset when bring down the SLI Layer. 887 * 888 * Return codes 889 * 0 - success. 890 * Any other value - error. 891 **/ 892int 893lpfc_hba_down_post(struct lpfc_hba *phba) 894{ 895 return (*phba->lpfc_hba_down_post)(phba); 896} 897 898/** 899 * lpfc_hb_timeout - The HBA-timer timeout handler 900 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 901 * 902 * This is the HBA-timer timeout handler registered to the lpfc driver. When 903 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 904 * work-port-events bitmap and the worker thread is notified. This timeout 905 * event will be used by the worker thread to invoke the actual timeout 906 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 907 * be performed in the timeout handler and the HBA timeout event bit shall 908 * be cleared by the worker thread after it has taken the event bitmap out. 909 **/ 910static void 911lpfc_hb_timeout(unsigned long ptr) 912{ 913 struct lpfc_hba *phba; 914 uint32_t tmo_posted; 915 unsigned long iflag; 916 917 phba = (struct lpfc_hba *)ptr; 918 919 /* Check for heart beat timeout conditions */ 920 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 921 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 922 if (!tmo_posted) 923 phba->pport->work_port_events |= WORKER_HB_TMO; 924 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 925 926 /* Tell the worker thread there is work to do */ 927 if (!tmo_posted) 928 lpfc_worker_wake_up(phba); 929 return; 930} 931 932/** 933 * lpfc_rrq_timeout - The RRQ-timer timeout handler 934 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 935 * 936 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 937 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 938 * work-port-events bitmap and the worker thread is notified. This timeout 939 * event will be used by the worker thread to invoke the actual timeout 940 * handler routine, lpfc_rrq_handler. Any periodical operations will 941 * be performed in the timeout handler and the RRQ timeout event bit shall 942 * be cleared by the worker thread after it has taken the event bitmap out. 943 **/ 944static void 945lpfc_rrq_timeout(unsigned long ptr) 946{ 947 struct lpfc_hba *phba; 948 uint32_t tmo_posted; 949 unsigned long iflag; 950 951 phba = (struct lpfc_hba *)ptr; 952 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 953 tmo_posted = phba->hba_flag & HBA_RRQ_ACTIVE; 954 if (!tmo_posted) 955 phba->hba_flag |= HBA_RRQ_ACTIVE; 956 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 957 if (!tmo_posted) 958 lpfc_worker_wake_up(phba); 959} 960 961/** 962 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 963 * @phba: pointer to lpfc hba data structure. 964 * @pmboxq: pointer to the driver internal queue element for mailbox command. 965 * 966 * This is the callback function to the lpfc heart-beat mailbox command. 967 * If configured, the lpfc driver issues the heart-beat mailbox command to 968 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 969 * heart-beat mailbox command is issued, the driver shall set up heart-beat 970 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 971 * heart-beat outstanding state. Once the mailbox command comes back and 972 * no error conditions detected, the heart-beat mailbox command timer is 973 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 974 * state is cleared for the next heart-beat. If the timer expired with the 975 * heart-beat outstanding state set, the driver will put the HBA offline. 976 **/ 977static void 978lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 979{ 980 unsigned long drvr_flag; 981 982 spin_lock_irqsave(&phba->hbalock, drvr_flag); 983 phba->hb_outstanding = 0; 984 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 985 986 /* Check and reset heart-beat timer is necessary */ 987 mempool_free(pmboxq, phba->mbox_mem_pool); 988 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 989 !(phba->link_state == LPFC_HBA_ERROR) && 990 !(phba->pport->load_flag & FC_UNLOADING)) 991 mod_timer(&phba->hb_tmofunc, 992 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 993 return; 994} 995 996/** 997 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 998 * @phba: pointer to lpfc hba data structure. 999 * 1000 * This is the actual HBA-timer timeout handler to be invoked by the worker 1001 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1002 * handler performs any periodic operations needed for the device. If such 1003 * periodic event has already been attended to either in the interrupt handler 1004 * or by processing slow-ring or fast-ring events within the HBA-timer 1005 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1006 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1007 * is configured and there is no heart-beat mailbox command outstanding, a 1008 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1009 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1010 * to offline. 1011 **/ 1012void 1013lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1014{ 1015 struct lpfc_vport **vports; 1016 LPFC_MBOXQ_t *pmboxq; 1017 struct lpfc_dmabuf *buf_ptr; 1018 int retval, i; 1019 struct lpfc_sli *psli = &phba->sli; 1020 LIST_HEAD(completions); 1021 1022 vports = lpfc_create_vport_work_array(phba); 1023 if (vports != NULL) 1024 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1025 lpfc_rcv_seq_check_edtov(vports[i]); 1026 lpfc_destroy_vport_work_array(phba, vports); 1027 1028 if ((phba->link_state == LPFC_HBA_ERROR) || 1029 (phba->pport->load_flag & FC_UNLOADING) || 1030 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1031 return; 1032 1033 spin_lock_irq(&phba->pport->work_port_lock); 1034 1035 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 1036 jiffies)) { 1037 spin_unlock_irq(&phba->pport->work_port_lock); 1038 if (!phba->hb_outstanding) 1039 mod_timer(&phba->hb_tmofunc, 1040 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1041 else 1042 mod_timer(&phba->hb_tmofunc, 1043 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1044 return; 1045 } 1046 spin_unlock_irq(&phba->pport->work_port_lock); 1047 1048 if (phba->elsbuf_cnt && 1049 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1050 spin_lock_irq(&phba->hbalock); 1051 list_splice_init(&phba->elsbuf, &completions); 1052 phba->elsbuf_cnt = 0; 1053 phba->elsbuf_prev_cnt = 0; 1054 spin_unlock_irq(&phba->hbalock); 1055 1056 while (!list_empty(&completions)) { 1057 list_remove_head(&completions, buf_ptr, 1058 struct lpfc_dmabuf, list); 1059 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1060 kfree(buf_ptr); 1061 } 1062 } 1063 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1064 1065 /* If there is no heart beat outstanding, issue a heartbeat command */ 1066 if (phba->cfg_enable_hba_heartbeat) { 1067 if (!phba->hb_outstanding) { 1068 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1069 (list_empty(&psli->mboxq))) { 1070 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1071 GFP_KERNEL); 1072 if (!pmboxq) { 1073 mod_timer(&phba->hb_tmofunc, 1074 jiffies + 1075 HZ * LPFC_HB_MBOX_INTERVAL); 1076 return; 1077 } 1078 1079 lpfc_heart_beat(phba, pmboxq); 1080 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1081 pmboxq->vport = phba->pport; 1082 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1083 MBX_NOWAIT); 1084 1085 if (retval != MBX_BUSY && 1086 retval != MBX_SUCCESS) { 1087 mempool_free(pmboxq, 1088 phba->mbox_mem_pool); 1089 mod_timer(&phba->hb_tmofunc, 1090 jiffies + 1091 HZ * LPFC_HB_MBOX_INTERVAL); 1092 return; 1093 } 1094 phba->skipped_hb = 0; 1095 phba->hb_outstanding = 1; 1096 } else if (time_before_eq(phba->last_completion_time, 1097 phba->skipped_hb)) { 1098 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1099 "2857 Last completion time not " 1100 " updated in %d ms\n", 1101 jiffies_to_msecs(jiffies 1102 - phba->last_completion_time)); 1103 } else 1104 phba->skipped_hb = jiffies; 1105 1106 mod_timer(&phba->hb_tmofunc, 1107 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1108 return; 1109 } else { 1110 /* 1111 * If heart beat timeout called with hb_outstanding set 1112 * we need to give the hb mailbox cmd a chance to 1113 * complete or TMO. 1114 */ 1115 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1116 "0459 Adapter heartbeat still out" 1117 "standing:last compl time was %d ms.\n", 1118 jiffies_to_msecs(jiffies 1119 - phba->last_completion_time)); 1120 mod_timer(&phba->hb_tmofunc, 1121 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1122 } 1123 } 1124} 1125 1126/** 1127 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1128 * @phba: pointer to lpfc hba data structure. 1129 * 1130 * This routine is called to bring the HBA offline when HBA hardware error 1131 * other than Port Error 6 has been detected. 1132 **/ 1133static void 1134lpfc_offline_eratt(struct lpfc_hba *phba) 1135{ 1136 struct lpfc_sli *psli = &phba->sli; 1137 1138 spin_lock_irq(&phba->hbalock); 1139 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1140 spin_unlock_irq(&phba->hbalock); 1141 lpfc_offline_prep(phba); 1142 1143 lpfc_offline(phba); 1144 lpfc_reset_barrier(phba); 1145 spin_lock_irq(&phba->hbalock); 1146 lpfc_sli_brdreset(phba); 1147 spin_unlock_irq(&phba->hbalock); 1148 lpfc_hba_down_post(phba); 1149 lpfc_sli_brdready(phba, HS_MBRDY); 1150 lpfc_unblock_mgmt_io(phba); 1151 phba->link_state = LPFC_HBA_ERROR; 1152 return; 1153} 1154 1155/** 1156 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1157 * @phba: pointer to lpfc hba data structure. 1158 * 1159 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1160 * other than Port Error 6 has been detected. 1161 **/ 1162static void 1163lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1164{ 1165 lpfc_offline_prep(phba); 1166 lpfc_offline(phba); 1167 lpfc_sli4_brdreset(phba); 1168 lpfc_hba_down_post(phba); 1169 lpfc_sli4_post_status_check(phba); 1170 lpfc_unblock_mgmt_io(phba); 1171 phba->link_state = LPFC_HBA_ERROR; 1172} 1173 1174/** 1175 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1176 * @phba: pointer to lpfc hba data structure. 1177 * 1178 * This routine is invoked to handle the deferred HBA hardware error 1179 * conditions. This type of error is indicated by HBA by setting ER1 1180 * and another ER bit in the host status register. The driver will 1181 * wait until the ER1 bit clears before handling the error condition. 1182 **/ 1183static void 1184lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1185{ 1186 uint32_t old_host_status = phba->work_hs; 1187 struct lpfc_sli_ring *pring; 1188 struct lpfc_sli *psli = &phba->sli; 1189 1190 /* If the pci channel is offline, ignore possible errors, 1191 * since we cannot communicate with the pci card anyway. 1192 */ 1193 if (pci_channel_offline(phba->pcidev)) { 1194 spin_lock_irq(&phba->hbalock); 1195 phba->hba_flag &= ~DEFER_ERATT; 1196 spin_unlock_irq(&phba->hbalock); 1197 return; 1198 } 1199 1200 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1201 "0479 Deferred Adapter Hardware Error " 1202 "Data: x%x x%x x%x\n", 1203 phba->work_hs, 1204 phba->work_status[0], phba->work_status[1]); 1205 1206 spin_lock_irq(&phba->hbalock); 1207 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1208 spin_unlock_irq(&phba->hbalock); 1209 1210 1211 /* 1212 * Firmware stops when it triggred erratt. That could cause the I/Os 1213 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1214 * SCSI layer retry it after re-establishing link. 1215 */ 1216 pring = &psli->ring[psli->fcp_ring]; 1217 lpfc_sli_abort_iocb_ring(phba, pring); 1218 1219 /* 1220 * There was a firmware error. Take the hba offline and then 1221 * attempt to restart it. 1222 */ 1223 lpfc_offline_prep(phba); 1224 lpfc_offline(phba); 1225 1226 /* Wait for the ER1 bit to clear.*/ 1227 while (phba->work_hs & HS_FFER1) { 1228 msleep(100); 1229 phba->work_hs = readl(phba->HSregaddr); 1230 /* If driver is unloading let the worker thread continue */ 1231 if (phba->pport->load_flag & FC_UNLOADING) { 1232 phba->work_hs = 0; 1233 break; 1234 } 1235 } 1236 1237 /* 1238 * This is to ptrotect against a race condition in which 1239 * first write to the host attention register clear the 1240 * host status register. 1241 */ 1242 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1243 phba->work_hs = old_host_status & ~HS_FFER1; 1244 1245 spin_lock_irq(&phba->hbalock); 1246 phba->hba_flag &= ~DEFER_ERATT; 1247 spin_unlock_irq(&phba->hbalock); 1248 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1249 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1250} 1251 1252static void 1253lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1254{ 1255 struct lpfc_board_event_header board_event; 1256 struct Scsi_Host *shost; 1257 1258 board_event.event_type = FC_REG_BOARD_EVENT; 1259 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1260 shost = lpfc_shost_from_vport(phba->pport); 1261 fc_host_post_vendor_event(shost, fc_get_event_number(), 1262 sizeof(board_event), 1263 (char *) &board_event, 1264 LPFC_NL_VENDOR_ID); 1265} 1266 1267/** 1268 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1269 * @phba: pointer to lpfc hba data structure. 1270 * 1271 * This routine is invoked to handle the following HBA hardware error 1272 * conditions: 1273 * 1 - HBA error attention interrupt 1274 * 2 - DMA ring index out of range 1275 * 3 - Mailbox command came back as unknown 1276 **/ 1277static void 1278lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1279{ 1280 struct lpfc_vport *vport = phba->pport; 1281 struct lpfc_sli *psli = &phba->sli; 1282 struct lpfc_sli_ring *pring; 1283 uint32_t event_data; 1284 unsigned long temperature; 1285 struct temp_event temp_event_data; 1286 struct Scsi_Host *shost; 1287 1288 /* If the pci channel is offline, ignore possible errors, 1289 * since we cannot communicate with the pci card anyway. 1290 */ 1291 if (pci_channel_offline(phba->pcidev)) { 1292 spin_lock_irq(&phba->hbalock); 1293 phba->hba_flag &= ~DEFER_ERATT; 1294 spin_unlock_irq(&phba->hbalock); 1295 return; 1296 } 1297 1298 /* If resets are disabled then leave the HBA alone and return */ 1299 if (!phba->cfg_enable_hba_reset) 1300 return; 1301 1302 /* Send an internal error event to mgmt application */ 1303 lpfc_board_errevt_to_mgmt(phba); 1304 1305 if (phba->hba_flag & DEFER_ERATT) 1306 lpfc_handle_deferred_eratt(phba); 1307 1308 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1309 if (phba->work_hs & HS_FFER6) 1310 /* Re-establishing Link */ 1311 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1312 "1301 Re-establishing Link " 1313 "Data: x%x x%x x%x\n", 1314 phba->work_hs, phba->work_status[0], 1315 phba->work_status[1]); 1316 if (phba->work_hs & HS_FFER8) 1317 /* Device Zeroization */ 1318 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1319 "2861 Host Authentication device " 1320 "zeroization Data:x%x x%x x%x\n", 1321 phba->work_hs, phba->work_status[0], 1322 phba->work_status[1]); 1323 1324 spin_lock_irq(&phba->hbalock); 1325 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1326 spin_unlock_irq(&phba->hbalock); 1327 1328 /* 1329 * Firmware stops when it triggled erratt with HS_FFER6. 1330 * That could cause the I/Os dropped by the firmware. 1331 * Error iocb (I/O) on txcmplq and let the SCSI layer 1332 * retry it after re-establishing link. 1333 */ 1334 pring = &psli->ring[psli->fcp_ring]; 1335 lpfc_sli_abort_iocb_ring(phba, pring); 1336 1337 /* 1338 * There was a firmware error. Take the hba offline and then 1339 * attempt to restart it. 1340 */ 1341 lpfc_offline_prep(phba); 1342 lpfc_offline(phba); 1343 lpfc_sli_brdrestart(phba); 1344 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1345 lpfc_unblock_mgmt_io(phba); 1346 return; 1347 } 1348 lpfc_unblock_mgmt_io(phba); 1349 } else if (phba->work_hs & HS_CRIT_TEMP) { 1350 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1351 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1352 temp_event_data.event_code = LPFC_CRIT_TEMP; 1353 temp_event_data.data = (uint32_t)temperature; 1354 1355 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1356 "0406 Adapter maximum temperature exceeded " 1357 "(%ld), taking this port offline " 1358 "Data: x%x x%x x%x\n", 1359 temperature, phba->work_hs, 1360 phba->work_status[0], phba->work_status[1]); 1361 1362 shost = lpfc_shost_from_vport(phba->pport); 1363 fc_host_post_vendor_event(shost, fc_get_event_number(), 1364 sizeof(temp_event_data), 1365 (char *) &temp_event_data, 1366 SCSI_NL_VID_TYPE_PCI 1367 | PCI_VENDOR_ID_EMULEX); 1368 1369 spin_lock_irq(&phba->hbalock); 1370 phba->over_temp_state = HBA_OVER_TEMP; 1371 spin_unlock_irq(&phba->hbalock); 1372 lpfc_offline_eratt(phba); 1373 1374 } else { 1375 /* The if clause above forces this code path when the status 1376 * failure is a value other than FFER6. Do not call the offline 1377 * twice. This is the adapter hardware error path. 1378 */ 1379 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1380 "0457 Adapter Hardware Error " 1381 "Data: x%x x%x x%x\n", 1382 phba->work_hs, 1383 phba->work_status[0], phba->work_status[1]); 1384 1385 event_data = FC_REG_DUMP_EVENT; 1386 shost = lpfc_shost_from_vport(vport); 1387 fc_host_post_vendor_event(shost, fc_get_event_number(), 1388 sizeof(event_data), (char *) &event_data, 1389 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1390 1391 lpfc_offline_eratt(phba); 1392 } 1393 return; 1394} 1395 1396/** 1397 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1398 * @phba: pointer to lpfc hba data structure. 1399 * 1400 * This routine is invoked to handle the SLI4 HBA hardware error attention 1401 * conditions. 1402 **/ 1403static void 1404lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1405{ 1406 struct lpfc_vport *vport = phba->pport; 1407 uint32_t event_data; 1408 struct Scsi_Host *shost; 1409 1410 /* If the pci channel is offline, ignore possible errors, since 1411 * we cannot communicate with the pci card anyway. 1412 */ 1413 if (pci_channel_offline(phba->pcidev)) 1414 return; 1415 /* If resets are disabled then leave the HBA alone and return */ 1416 if (!phba->cfg_enable_hba_reset) 1417 return; 1418 1419 /* Send an internal error event to mgmt application */ 1420 lpfc_board_errevt_to_mgmt(phba); 1421 1422 /* For now, the actual action for SLI4 device handling is not 1423 * specified yet, just treated it as adaptor hardware failure 1424 */ 1425 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1426 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n", 1427 phba->work_status[0], phba->work_status[1]); 1428 1429 event_data = FC_REG_DUMP_EVENT; 1430 shost = lpfc_shost_from_vport(vport); 1431 fc_host_post_vendor_event(shost, fc_get_event_number(), 1432 sizeof(event_data), (char *) &event_data, 1433 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1434 1435 lpfc_sli4_offline_eratt(phba); 1436} 1437 1438/** 1439 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1440 * @phba: pointer to lpfc HBA data structure. 1441 * 1442 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1443 * routine from the API jump table function pointer from the lpfc_hba struct. 1444 * 1445 * Return codes 1446 * 0 - success. 1447 * Any other value - error. 1448 **/ 1449void 1450lpfc_handle_eratt(struct lpfc_hba *phba) 1451{ 1452 (*phba->lpfc_handle_eratt)(phba); 1453} 1454 1455/** 1456 * lpfc_handle_latt - The HBA link event handler 1457 * @phba: pointer to lpfc hba data structure. 1458 * 1459 * This routine is invoked from the worker thread to handle a HBA host 1460 * attention link event. 1461 **/ 1462void 1463lpfc_handle_latt(struct lpfc_hba *phba) 1464{ 1465 struct lpfc_vport *vport = phba->pport; 1466 struct lpfc_sli *psli = &phba->sli; 1467 LPFC_MBOXQ_t *pmb; 1468 volatile uint32_t control; 1469 struct lpfc_dmabuf *mp; 1470 int rc = 0; 1471 1472 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1473 if (!pmb) { 1474 rc = 1; 1475 goto lpfc_handle_latt_err_exit; 1476 } 1477 1478 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1479 if (!mp) { 1480 rc = 2; 1481 goto lpfc_handle_latt_free_pmb; 1482 } 1483 1484 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1485 if (!mp->virt) { 1486 rc = 3; 1487 goto lpfc_handle_latt_free_mp; 1488 } 1489 1490 /* Cleanup any outstanding ELS commands */ 1491 lpfc_els_flush_all_cmd(phba); 1492 1493 psli->slistat.link_event++; 1494 lpfc_read_topology(phba, pmb, mp); 1495 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1496 pmb->vport = vport; 1497 /* Block ELS IOCBs until we have processed this mbox command */ 1498 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1499 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1500 if (rc == MBX_NOT_FINISHED) { 1501 rc = 4; 1502 goto lpfc_handle_latt_free_mbuf; 1503 } 1504 1505 /* Clear Link Attention in HA REG */ 1506 spin_lock_irq(&phba->hbalock); 1507 writel(HA_LATT, phba->HAregaddr); 1508 readl(phba->HAregaddr); /* flush */ 1509 spin_unlock_irq(&phba->hbalock); 1510 1511 return; 1512 1513lpfc_handle_latt_free_mbuf: 1514 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1515 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1516lpfc_handle_latt_free_mp: 1517 kfree(mp); 1518lpfc_handle_latt_free_pmb: 1519 mempool_free(pmb, phba->mbox_mem_pool); 1520lpfc_handle_latt_err_exit: 1521 /* Enable Link attention interrupts */ 1522 spin_lock_irq(&phba->hbalock); 1523 psli->sli_flag |= LPFC_PROCESS_LA; 1524 control = readl(phba->HCregaddr); 1525 control |= HC_LAINT_ENA; 1526 writel(control, phba->HCregaddr); 1527 readl(phba->HCregaddr); /* flush */ 1528 1529 /* Clear Link Attention in HA REG */ 1530 writel(HA_LATT, phba->HAregaddr); 1531 readl(phba->HAregaddr); /* flush */ 1532 spin_unlock_irq(&phba->hbalock); 1533 lpfc_linkdown(phba); 1534 phba->link_state = LPFC_HBA_ERROR; 1535 1536 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1537 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1538 1539 return; 1540} 1541 1542/** 1543 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1544 * @phba: pointer to lpfc hba data structure. 1545 * @vpd: pointer to the vital product data. 1546 * @len: length of the vital product data in bytes. 1547 * 1548 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1549 * an array of characters. In this routine, the ModelName, ProgramType, and 1550 * ModelDesc, etc. fields of the phba data structure will be populated. 1551 * 1552 * Return codes 1553 * 0 - pointer to the VPD passed in is NULL 1554 * 1 - success 1555 **/ 1556int 1557lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1558{ 1559 uint8_t lenlo, lenhi; 1560 int Length; 1561 int i, j; 1562 int finished = 0; 1563 int index = 0; 1564 1565 if (!vpd) 1566 return 0; 1567 1568 /* Vital Product */ 1569 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1570 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1571 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1572 (uint32_t) vpd[3]); 1573 while (!finished && (index < (len - 4))) { 1574 switch (vpd[index]) { 1575 case 0x82: 1576 case 0x91: 1577 index += 1; 1578 lenlo = vpd[index]; 1579 index += 1; 1580 lenhi = vpd[index]; 1581 index += 1; 1582 i = ((((unsigned short)lenhi) << 8) + lenlo); 1583 index += i; 1584 break; 1585 case 0x90: 1586 index += 1; 1587 lenlo = vpd[index]; 1588 index += 1; 1589 lenhi = vpd[index]; 1590 index += 1; 1591 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1592 if (Length > len - index) 1593 Length = len - index; 1594 while (Length > 0) { 1595 /* Look for Serial Number */ 1596 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1597 index += 2; 1598 i = vpd[index]; 1599 index += 1; 1600 j = 0; 1601 Length -= (3+i); 1602 while(i--) { 1603 phba->SerialNumber[j++] = vpd[index++]; 1604 if (j == 31) 1605 break; 1606 } 1607 phba->SerialNumber[j] = 0; 1608 continue; 1609 } 1610 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1611 phba->vpd_flag |= VPD_MODEL_DESC; 1612 index += 2; 1613 i = vpd[index]; 1614 index += 1; 1615 j = 0; 1616 Length -= (3+i); 1617 while(i--) { 1618 phba->ModelDesc[j++] = vpd[index++]; 1619 if (j == 255) 1620 break; 1621 } 1622 phba->ModelDesc[j] = 0; 1623 continue; 1624 } 1625 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1626 phba->vpd_flag |= VPD_MODEL_NAME; 1627 index += 2; 1628 i = vpd[index]; 1629 index += 1; 1630 j = 0; 1631 Length -= (3+i); 1632 while(i--) { 1633 phba->ModelName[j++] = vpd[index++]; 1634 if (j == 79) 1635 break; 1636 } 1637 phba->ModelName[j] = 0; 1638 continue; 1639 } 1640 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1641 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1642 index += 2; 1643 i = vpd[index]; 1644 index += 1; 1645 j = 0; 1646 Length -= (3+i); 1647 while(i--) { 1648 phba->ProgramType[j++] = vpd[index++]; 1649 if (j == 255) 1650 break; 1651 } 1652 phba->ProgramType[j] = 0; 1653 continue; 1654 } 1655 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1656 phba->vpd_flag |= VPD_PORT; 1657 index += 2; 1658 i = vpd[index]; 1659 index += 1; 1660 j = 0; 1661 Length -= (3+i); 1662 while(i--) { 1663 phba->Port[j++] = vpd[index++]; 1664 if (j == 19) 1665 break; 1666 } 1667 phba->Port[j] = 0; 1668 continue; 1669 } 1670 else { 1671 index += 2; 1672 i = vpd[index]; 1673 index += 1; 1674 index += i; 1675 Length -= (3 + i); 1676 } 1677 } 1678 finished = 0; 1679 break; 1680 case 0x78: 1681 finished = 1; 1682 break; 1683 default: 1684 index ++; 1685 break; 1686 } 1687 } 1688 1689 return(1); 1690} 1691 1692/** 1693 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1694 * @phba: pointer to lpfc hba data structure. 1695 * @mdp: pointer to the data structure to hold the derived model name. 1696 * @descp: pointer to the data structure to hold the derived description. 1697 * 1698 * This routine retrieves HBA's description based on its registered PCI device 1699 * ID. The @descp passed into this function points to an array of 256 chars. It 1700 * shall be returned with the model name, maximum speed, and the host bus type. 1701 * The @mdp passed into this function points to an array of 80 chars. When the 1702 * function returns, the @mdp will be filled with the model name. 1703 **/ 1704static void 1705lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1706{ 1707 lpfc_vpd_t *vp; 1708 uint16_t dev_id = phba->pcidev->device; 1709 int max_speed; 1710 int GE = 0; 1711 int oneConnect = 0; /* default is not a oneConnect */ 1712 struct { 1713 char *name; 1714 char *bus; 1715 char *function; 1716 } m = {"<Unknown>", "", ""}; 1717 1718 if (mdp && mdp[0] != '\0' 1719 && descp && descp[0] != '\0') 1720 return; 1721 1722 if (phba->lmt & LMT_10Gb) 1723 max_speed = 10; 1724 else if (phba->lmt & LMT_8Gb) 1725 max_speed = 8; 1726 else if (phba->lmt & LMT_4Gb) 1727 max_speed = 4; 1728 else if (phba->lmt & LMT_2Gb) 1729 max_speed = 2; 1730 else 1731 max_speed = 1; 1732 1733 vp = &phba->vpd; 1734 1735 switch (dev_id) { 1736 case PCI_DEVICE_ID_FIREFLY: 1737 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1738 break; 1739 case PCI_DEVICE_ID_SUPERFLY: 1740 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1741 m = (typeof(m)){"LP7000", "PCI", 1742 "Fibre Channel Adapter"}; 1743 else 1744 m = (typeof(m)){"LP7000E", "PCI", 1745 "Fibre Channel Adapter"}; 1746 break; 1747 case PCI_DEVICE_ID_DRAGONFLY: 1748 m = (typeof(m)){"LP8000", "PCI", 1749 "Fibre Channel Adapter"}; 1750 break; 1751 case PCI_DEVICE_ID_CENTAUR: 1752 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1753 m = (typeof(m)){"LP9002", "PCI", 1754 "Fibre Channel Adapter"}; 1755 else 1756 m = (typeof(m)){"LP9000", "PCI", 1757 "Fibre Channel Adapter"}; 1758 break; 1759 case PCI_DEVICE_ID_RFLY: 1760 m = (typeof(m)){"LP952", "PCI", 1761 "Fibre Channel Adapter"}; 1762 break; 1763 case PCI_DEVICE_ID_PEGASUS: 1764 m = (typeof(m)){"LP9802", "PCI-X", 1765 "Fibre Channel Adapter"}; 1766 break; 1767 case PCI_DEVICE_ID_THOR: 1768 m = (typeof(m)){"LP10000", "PCI-X", 1769 "Fibre Channel Adapter"}; 1770 break; 1771 case PCI_DEVICE_ID_VIPER: 1772 m = (typeof(m)){"LPX1000", "PCI-X", 1773 "Fibre Channel Adapter"}; 1774 break; 1775 case PCI_DEVICE_ID_PFLY: 1776 m = (typeof(m)){"LP982", "PCI-X", 1777 "Fibre Channel Adapter"}; 1778 break; 1779 case PCI_DEVICE_ID_TFLY: 1780 m = (typeof(m)){"LP1050", "PCI-X", 1781 "Fibre Channel Adapter"}; 1782 break; 1783 case PCI_DEVICE_ID_HELIOS: 1784 m = (typeof(m)){"LP11000", "PCI-X2", 1785 "Fibre Channel Adapter"}; 1786 break; 1787 case PCI_DEVICE_ID_HELIOS_SCSP: 1788 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1789 "Fibre Channel Adapter"}; 1790 break; 1791 case PCI_DEVICE_ID_HELIOS_DCSP: 1792 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1793 "Fibre Channel Adapter"}; 1794 break; 1795 case PCI_DEVICE_ID_NEPTUNE: 1796 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1797 break; 1798 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1799 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1800 break; 1801 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1802 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1803 break; 1804 case PCI_DEVICE_ID_BMID: 1805 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1806 break; 1807 case PCI_DEVICE_ID_BSMB: 1808 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1809 break; 1810 case PCI_DEVICE_ID_ZEPHYR: 1811 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1812 break; 1813 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1814 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1815 break; 1816 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1817 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1818 GE = 1; 1819 break; 1820 case PCI_DEVICE_ID_ZMID: 1821 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1822 break; 1823 case PCI_DEVICE_ID_ZSMB: 1824 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1825 break; 1826 case PCI_DEVICE_ID_LP101: 1827 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1828 break; 1829 case PCI_DEVICE_ID_LP10000S: 1830 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1831 break; 1832 case PCI_DEVICE_ID_LP11000S: 1833 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 1834 break; 1835 case PCI_DEVICE_ID_LPE11000S: 1836 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 1837 break; 1838 case PCI_DEVICE_ID_SAT: 1839 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 1840 break; 1841 case PCI_DEVICE_ID_SAT_MID: 1842 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 1843 break; 1844 case PCI_DEVICE_ID_SAT_SMB: 1845 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 1846 break; 1847 case PCI_DEVICE_ID_SAT_DCSP: 1848 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 1849 break; 1850 case PCI_DEVICE_ID_SAT_SCSP: 1851 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 1852 break; 1853 case PCI_DEVICE_ID_SAT_S: 1854 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 1855 break; 1856 case PCI_DEVICE_ID_HORNET: 1857 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 1858 GE = 1; 1859 break; 1860 case PCI_DEVICE_ID_PROTEUS_VF: 1861 m = (typeof(m)){"LPev12000", "PCIe IOV", 1862 "Fibre Channel Adapter"}; 1863 break; 1864 case PCI_DEVICE_ID_PROTEUS_PF: 1865 m = (typeof(m)){"LPev12000", "PCIe IOV", 1866 "Fibre Channel Adapter"}; 1867 break; 1868 case PCI_DEVICE_ID_PROTEUS_S: 1869 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 1870 "Fibre Channel Adapter"}; 1871 break; 1872 case PCI_DEVICE_ID_TIGERSHARK: 1873 oneConnect = 1; 1874 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 1875 break; 1876 case PCI_DEVICE_ID_TOMCAT: 1877 oneConnect = 1; 1878 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 1879 break; 1880 case PCI_DEVICE_ID_FALCON: 1881 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 1882 "EmulexSecure Fibre"}; 1883 break; 1884 case PCI_DEVICE_ID_BALIUS: 1885 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 1886 "Fibre Channel Adapter"}; 1887 break; 1888 case PCI_DEVICE_ID_LANCER_FC: 1889 oneConnect = 1; 1890 m = (typeof(m)){"Undefined", "PCIe", "Fibre Channel Adapter"}; 1891 break; 1892 case PCI_DEVICE_ID_LANCER_FCOE: 1893 oneConnect = 1; 1894 m = (typeof(m)){"Undefined", "PCIe", "FCoE"}; 1895 break; 1896 default: 1897 m = (typeof(m)){"Unknown", "", ""}; 1898 break; 1899 } 1900 1901 if (mdp && mdp[0] == '\0') 1902 snprintf(mdp, 79,"%s", m.name); 1903 /* oneConnect hba requires special processing, they are all initiators 1904 * and we put the port number on the end 1905 */ 1906 if (descp && descp[0] == '\0') { 1907 if (oneConnect) 1908 snprintf(descp, 255, 1909 "Emulex OneConnect %s, %s Initiator, Port %s", 1910 m.name, m.function, 1911 phba->Port); 1912 else 1913 snprintf(descp, 255, 1914 "Emulex %s %d%s %s %s", 1915 m.name, max_speed, (GE) ? "GE" : "Gb", 1916 m.bus, m.function); 1917 } 1918} 1919 1920/** 1921 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 1922 * @phba: pointer to lpfc hba data structure. 1923 * @pring: pointer to a IOCB ring. 1924 * @cnt: the number of IOCBs to be posted to the IOCB ring. 1925 * 1926 * This routine posts a given number of IOCBs with the associated DMA buffer 1927 * descriptors specified by the cnt argument to the given IOCB ring. 1928 * 1929 * Return codes 1930 * The number of IOCBs NOT able to be posted to the IOCB ring. 1931 **/ 1932int 1933lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 1934{ 1935 IOCB_t *icmd; 1936 struct lpfc_iocbq *iocb; 1937 struct lpfc_dmabuf *mp1, *mp2; 1938 1939 cnt += pring->missbufcnt; 1940 1941 /* While there are buffers to post */ 1942 while (cnt > 0) { 1943 /* Allocate buffer for command iocb */ 1944 iocb = lpfc_sli_get_iocbq(phba); 1945 if (iocb == NULL) { 1946 pring->missbufcnt = cnt; 1947 return cnt; 1948 } 1949 icmd = &iocb->iocb; 1950 1951 /* 2 buffers can be posted per command */ 1952 /* Allocate buffer to post */ 1953 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1954 if (mp1) 1955 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 1956 if (!mp1 || !mp1->virt) { 1957 kfree(mp1); 1958 lpfc_sli_release_iocbq(phba, iocb); 1959 pring->missbufcnt = cnt; 1960 return cnt; 1961 } 1962 1963 INIT_LIST_HEAD(&mp1->list); 1964 /* Allocate buffer to post */ 1965 if (cnt > 1) { 1966 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1967 if (mp2) 1968 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1969 &mp2->phys); 1970 if (!mp2 || !mp2->virt) { 1971 kfree(mp2); 1972 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1973 kfree(mp1); 1974 lpfc_sli_release_iocbq(phba, iocb); 1975 pring->missbufcnt = cnt; 1976 return cnt; 1977 } 1978 1979 INIT_LIST_HEAD(&mp2->list); 1980 } else { 1981 mp2 = NULL; 1982 } 1983 1984 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1985 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1986 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1987 icmd->ulpBdeCount = 1; 1988 cnt--; 1989 if (mp2) { 1990 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1991 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1992 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1993 cnt--; 1994 icmd->ulpBdeCount = 2; 1995 } 1996 1997 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1998 icmd->ulpLe = 1; 1999 2000 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2001 IOCB_ERROR) { 2002 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2003 kfree(mp1); 2004 cnt++; 2005 if (mp2) { 2006 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2007 kfree(mp2); 2008 cnt++; 2009 } 2010 lpfc_sli_release_iocbq(phba, iocb); 2011 pring->missbufcnt = cnt; 2012 return cnt; 2013 } 2014 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2015 if (mp2) 2016 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2017 } 2018 pring->missbufcnt = 0; 2019 return 0; 2020} 2021 2022/** 2023 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2024 * @phba: pointer to lpfc hba data structure. 2025 * 2026 * This routine posts initial receive IOCB buffers to the ELS ring. The 2027 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2028 * set to 64 IOCBs. 2029 * 2030 * Return codes 2031 * 0 - success (currently always success) 2032 **/ 2033static int 2034lpfc_post_rcv_buf(struct lpfc_hba *phba) 2035{ 2036 struct lpfc_sli *psli = &phba->sli; 2037 2038 /* Ring 0, ELS / CT buffers */ 2039 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2040 /* Ring 2 - FCP no buffers needed */ 2041 2042 return 0; 2043} 2044 2045#define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2046 2047/** 2048 * lpfc_sha_init - Set up initial array of hash table entries 2049 * @HashResultPointer: pointer to an array as hash table. 2050 * 2051 * This routine sets up the initial values to the array of hash table entries 2052 * for the LC HBAs. 2053 **/ 2054static void 2055lpfc_sha_init(uint32_t * HashResultPointer) 2056{ 2057 HashResultPointer[0] = 0x67452301; 2058 HashResultPointer[1] = 0xEFCDAB89; 2059 HashResultPointer[2] = 0x98BADCFE; 2060 HashResultPointer[3] = 0x10325476; 2061 HashResultPointer[4] = 0xC3D2E1F0; 2062} 2063 2064/** 2065 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2066 * @HashResultPointer: pointer to an initial/result hash table. 2067 * @HashWorkingPointer: pointer to an working hash table. 2068 * 2069 * This routine iterates an initial hash table pointed by @HashResultPointer 2070 * with the values from the working hash table pointeed by @HashWorkingPointer. 2071 * The results are putting back to the initial hash table, returned through 2072 * the @HashResultPointer as the result hash table. 2073 **/ 2074static void 2075lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2076{ 2077 int t; 2078 uint32_t TEMP; 2079 uint32_t A, B, C, D, E; 2080 t = 16; 2081 do { 2082 HashWorkingPointer[t] = 2083 S(1, 2084 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2085 8] ^ 2086 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2087 } while (++t <= 79); 2088 t = 0; 2089 A = HashResultPointer[0]; 2090 B = HashResultPointer[1]; 2091 C = HashResultPointer[2]; 2092 D = HashResultPointer[3]; 2093 E = HashResultPointer[4]; 2094 2095 do { 2096 if (t < 20) { 2097 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2098 } else if (t < 40) { 2099 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2100 } else if (t < 60) { 2101 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2102 } else { 2103 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2104 } 2105 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2106 E = D; 2107 D = C; 2108 C = S(30, B); 2109 B = A; 2110 A = TEMP; 2111 } while (++t <= 79); 2112 2113 HashResultPointer[0] += A; 2114 HashResultPointer[1] += B; 2115 HashResultPointer[2] += C; 2116 HashResultPointer[3] += D; 2117 HashResultPointer[4] += E; 2118 2119} 2120 2121/** 2122 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2123 * @RandomChallenge: pointer to the entry of host challenge random number array. 2124 * @HashWorking: pointer to the entry of the working hash array. 2125 * 2126 * This routine calculates the working hash array referred by @HashWorking 2127 * from the challenge random numbers associated with the host, referred by 2128 * @RandomChallenge. The result is put into the entry of the working hash 2129 * array and returned by reference through @HashWorking. 2130 **/ 2131static void 2132lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2133{ 2134 *HashWorking = (*RandomChallenge ^ *HashWorking); 2135} 2136 2137/** 2138 * lpfc_hba_init - Perform special handling for LC HBA initialization 2139 * @phba: pointer to lpfc hba data structure. 2140 * @hbainit: pointer to an array of unsigned 32-bit integers. 2141 * 2142 * This routine performs the special handling for LC HBA initialization. 2143 **/ 2144void 2145lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2146{ 2147 int t; 2148 uint32_t *HashWorking; 2149 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2150 2151 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2152 if (!HashWorking) 2153 return; 2154 2155 HashWorking[0] = HashWorking[78] = *pwwnn++; 2156 HashWorking[1] = HashWorking[79] = *pwwnn; 2157 2158 for (t = 0; t < 7; t++) 2159 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2160 2161 lpfc_sha_init(hbainit); 2162 lpfc_sha_iterate(hbainit, HashWorking); 2163 kfree(HashWorking); 2164} 2165 2166/** 2167 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2168 * @vport: pointer to a virtual N_Port data structure. 2169 * 2170 * This routine performs the necessary cleanups before deleting the @vport. 2171 * It invokes the discovery state machine to perform necessary state 2172 * transitions and to release the ndlps associated with the @vport. Note, 2173 * the physical port is treated as @vport 0. 2174 **/ 2175void 2176lpfc_cleanup(struct lpfc_vport *vport) 2177{ 2178 struct lpfc_hba *phba = vport->phba; 2179 struct lpfc_nodelist *ndlp, *next_ndlp; 2180 int i = 0; 2181 2182 if (phba->link_state > LPFC_LINK_DOWN) 2183 lpfc_port_link_failure(vport); 2184 2185 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2186 if (!NLP_CHK_NODE_ACT(ndlp)) { 2187 ndlp = lpfc_enable_node(vport, ndlp, 2188 NLP_STE_UNUSED_NODE); 2189 if (!ndlp) 2190 continue; 2191 spin_lock_irq(&phba->ndlp_lock); 2192 NLP_SET_FREE_REQ(ndlp); 2193 spin_unlock_irq(&phba->ndlp_lock); 2194 /* Trigger the release of the ndlp memory */ 2195 lpfc_nlp_put(ndlp); 2196 continue; 2197 } 2198 spin_lock_irq(&phba->ndlp_lock); 2199 if (NLP_CHK_FREE_REQ(ndlp)) { 2200 /* The ndlp should not be in memory free mode already */ 2201 spin_unlock_irq(&phba->ndlp_lock); 2202 continue; 2203 } else 2204 /* Indicate request for freeing ndlp memory */ 2205 NLP_SET_FREE_REQ(ndlp); 2206 spin_unlock_irq(&phba->ndlp_lock); 2207 2208 if (vport->port_type != LPFC_PHYSICAL_PORT && 2209 ndlp->nlp_DID == Fabric_DID) { 2210 /* Just free up ndlp with Fabric_DID for vports */ 2211 lpfc_nlp_put(ndlp); 2212 continue; 2213 } 2214 2215 if (ndlp->nlp_type & NLP_FABRIC) 2216 lpfc_disc_state_machine(vport, ndlp, NULL, 2217 NLP_EVT_DEVICE_RECOVERY); 2218 2219 lpfc_disc_state_machine(vport, ndlp, NULL, 2220 NLP_EVT_DEVICE_RM); 2221 2222 } 2223 2224 /* At this point, ALL ndlp's should be gone 2225 * because of the previous NLP_EVT_DEVICE_RM. 2226 * Lets wait for this to happen, if needed. 2227 */ 2228 while (!list_empty(&vport->fc_nodes)) { 2229 if (i++ > 3000) { 2230 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2231 "0233 Nodelist not empty\n"); 2232 list_for_each_entry_safe(ndlp, next_ndlp, 2233 &vport->fc_nodes, nlp_listp) { 2234 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2235 LOG_NODE, 2236 "0282 did:x%x ndlp:x%p " 2237 "usgmap:x%x refcnt:%d\n", 2238 ndlp->nlp_DID, (void *)ndlp, 2239 ndlp->nlp_usg_map, 2240 atomic_read( 2241 &ndlp->kref.refcount)); 2242 } 2243 break; 2244 } 2245 2246 /* Wait for any activity on ndlps to settle */ 2247 msleep(10); 2248 } 2249} 2250 2251/** 2252 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2253 * @vport: pointer to a virtual N_Port data structure. 2254 * 2255 * This routine stops all the timers associated with a @vport. This function 2256 * is invoked before disabling or deleting a @vport. Note that the physical 2257 * port is treated as @vport 0. 2258 **/ 2259void 2260lpfc_stop_vport_timers(struct lpfc_vport *vport) 2261{ 2262 del_timer_sync(&vport->els_tmofunc); 2263 del_timer_sync(&vport->fc_fdmitmo); 2264 lpfc_can_disctmo(vport); 2265 return; 2266} 2267 2268/** 2269 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2270 * @phba: pointer to lpfc hba data structure. 2271 * 2272 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2273 * caller of this routine should already hold the host lock. 2274 **/ 2275void 2276__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2277{ 2278 /* Clear pending FCF rediscovery wait flag */ 2279 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2280 2281 /* Now, try to stop the timer */ 2282 del_timer(&phba->fcf.redisc_wait); 2283} 2284 2285/** 2286 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2287 * @phba: pointer to lpfc hba data structure. 2288 * 2289 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2290 * checks whether the FCF rediscovery wait timer is pending with the host 2291 * lock held before proceeding with disabling the timer and clearing the 2292 * wait timer pendig flag. 2293 **/ 2294void 2295lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2296{ 2297 spin_lock_irq(&phba->hbalock); 2298 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2299 /* FCF rediscovery timer already fired or stopped */ 2300 spin_unlock_irq(&phba->hbalock); 2301 return; 2302 } 2303 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2304 /* Clear failover in progress flags */ 2305 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2306 spin_unlock_irq(&phba->hbalock); 2307} 2308 2309/** 2310 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2311 * @phba: pointer to lpfc hba data structure. 2312 * 2313 * This routine stops all the timers associated with a HBA. This function is 2314 * invoked before either putting a HBA offline or unloading the driver. 2315 **/ 2316void 2317lpfc_stop_hba_timers(struct lpfc_hba *phba) 2318{ 2319 lpfc_stop_vport_timers(phba->pport); 2320 del_timer_sync(&phba->sli.mbox_tmo); 2321 del_timer_sync(&phba->fabric_block_timer); 2322 del_timer_sync(&phba->eratt_poll); 2323 del_timer_sync(&phba->hb_tmofunc); 2324 phba->hb_outstanding = 0; 2325 2326 switch (phba->pci_dev_grp) { 2327 case LPFC_PCI_DEV_LP: 2328 /* Stop any LightPulse device specific driver timers */ 2329 del_timer_sync(&phba->fcp_poll_timer); 2330 break; 2331 case LPFC_PCI_DEV_OC: 2332 /* Stop any OneConnect device sepcific driver timers */ 2333 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2334 break; 2335 default: 2336 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2337 "0297 Invalid device group (x%x)\n", 2338 phba->pci_dev_grp); 2339 break; 2340 } 2341 return; 2342} 2343 2344/** 2345 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2346 * @phba: pointer to lpfc hba data structure. 2347 * 2348 * This routine marks a HBA's management interface as blocked. Once the HBA's 2349 * management interface is marked as blocked, all the user space access to 2350 * the HBA, whether they are from sysfs interface or libdfc interface will 2351 * all be blocked. The HBA is set to block the management interface when the 2352 * driver prepares the HBA interface for online or offline. 2353 **/ 2354static void 2355lpfc_block_mgmt_io(struct lpfc_hba * phba) 2356{ 2357 unsigned long iflag; 2358 uint8_t actcmd = MBX_HEARTBEAT; 2359 unsigned long timeout; 2360 2361 2362 spin_lock_irqsave(&phba->hbalock, iflag); 2363 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2364 if (phba->sli.mbox_active) 2365 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2366 spin_unlock_irqrestore(&phba->hbalock, iflag); 2367 /* Determine how long we might wait for the active mailbox 2368 * command to be gracefully completed by firmware. 2369 */ 2370 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) + 2371 jiffies; 2372 /* Wait for the outstnading mailbox command to complete */ 2373 while (phba->sli.mbox_active) { 2374 /* Check active mailbox complete status every 2ms */ 2375 msleep(2); 2376 if (time_after(jiffies, timeout)) { 2377 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2378 "2813 Mgmt IO is Blocked %x " 2379 "- mbox cmd %x still active\n", 2380 phba->sli.sli_flag, actcmd); 2381 break; 2382 } 2383 } 2384} 2385 2386/** 2387 * lpfc_online - Initialize and bring a HBA online 2388 * @phba: pointer to lpfc hba data structure. 2389 * 2390 * This routine initializes the HBA and brings a HBA online. During this 2391 * process, the management interface is blocked to prevent user space access 2392 * to the HBA interfering with the driver initialization. 2393 * 2394 * Return codes 2395 * 0 - successful 2396 * 1 - failed 2397 **/ 2398int 2399lpfc_online(struct lpfc_hba *phba) 2400{ 2401 struct lpfc_vport *vport; 2402 struct lpfc_vport **vports; 2403 int i; 2404 2405 if (!phba) 2406 return 0; 2407 vport = phba->pport; 2408 2409 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2410 return 0; 2411 2412 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2413 "0458 Bring Adapter online\n"); 2414 2415 lpfc_block_mgmt_io(phba); 2416 2417 if (!lpfc_sli_queue_setup(phba)) { 2418 lpfc_unblock_mgmt_io(phba); 2419 return 1; 2420 } 2421 2422 if (phba->sli_rev == LPFC_SLI_REV4) { 2423 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2424 lpfc_unblock_mgmt_io(phba); 2425 return 1; 2426 } 2427 } else { 2428 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2429 lpfc_unblock_mgmt_io(phba); 2430 return 1; 2431 } 2432 } 2433 2434 vports = lpfc_create_vport_work_array(phba); 2435 if (vports != NULL) 2436 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2437 struct Scsi_Host *shost; 2438 shost = lpfc_shost_from_vport(vports[i]); 2439 spin_lock_irq(shost->host_lock); 2440 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2441 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2442 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2443 if (phba->sli_rev == LPFC_SLI_REV4) 2444 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2445 spin_unlock_irq(shost->host_lock); 2446 } 2447 lpfc_destroy_vport_work_array(phba, vports); 2448 2449 lpfc_unblock_mgmt_io(phba); 2450 return 0; 2451} 2452 2453/** 2454 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2455 * @phba: pointer to lpfc hba data structure. 2456 * 2457 * This routine marks a HBA's management interface as not blocked. Once the 2458 * HBA's management interface is marked as not blocked, all the user space 2459 * access to the HBA, whether they are from sysfs interface or libdfc 2460 * interface will be allowed. The HBA is set to block the management interface 2461 * when the driver prepares the HBA interface for online or offline and then 2462 * set to unblock the management interface afterwards. 2463 **/ 2464void 2465lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2466{ 2467 unsigned long iflag; 2468 2469 spin_lock_irqsave(&phba->hbalock, iflag); 2470 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2471 spin_unlock_irqrestore(&phba->hbalock, iflag); 2472} 2473 2474/** 2475 * lpfc_offline_prep - Prepare a HBA to be brought offline 2476 * @phba: pointer to lpfc hba data structure. 2477 * 2478 * This routine is invoked to prepare a HBA to be brought offline. It performs 2479 * unregistration login to all the nodes on all vports and flushes the mailbox 2480 * queue to make it ready to be brought offline. 2481 **/ 2482void 2483lpfc_offline_prep(struct lpfc_hba * phba) 2484{ 2485 struct lpfc_vport *vport = phba->pport; 2486 struct lpfc_nodelist *ndlp, *next_ndlp; 2487 struct lpfc_vport **vports; 2488 struct Scsi_Host *shost; 2489 int i; 2490 2491 if (vport->fc_flag & FC_OFFLINE_MODE) 2492 return; 2493 2494 lpfc_block_mgmt_io(phba); 2495 2496 lpfc_linkdown(phba); 2497 2498 /* Issue an unreg_login to all nodes on all vports */ 2499 vports = lpfc_create_vport_work_array(phba); 2500 if (vports != NULL) { 2501 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2502 if (vports[i]->load_flag & FC_UNLOADING) 2503 continue; 2504 shost = lpfc_shost_from_vport(vports[i]); 2505 spin_lock_irq(shost->host_lock); 2506 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2507 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2508 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2509 spin_unlock_irq(shost->host_lock); 2510 2511 shost = lpfc_shost_from_vport(vports[i]); 2512 list_for_each_entry_safe(ndlp, next_ndlp, 2513 &vports[i]->fc_nodes, 2514 nlp_listp) { 2515 if (!NLP_CHK_NODE_ACT(ndlp)) 2516 continue; 2517 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2518 continue; 2519 if (ndlp->nlp_type & NLP_FABRIC) { 2520 lpfc_disc_state_machine(vports[i], ndlp, 2521 NULL, NLP_EVT_DEVICE_RECOVERY); 2522 lpfc_disc_state_machine(vports[i], ndlp, 2523 NULL, NLP_EVT_DEVICE_RM); 2524 } 2525 spin_lock_irq(shost->host_lock); 2526 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2527 spin_unlock_irq(shost->host_lock); 2528 lpfc_unreg_rpi(vports[i], ndlp); 2529 } 2530 } 2531 } 2532 lpfc_destroy_vport_work_array(phba, vports); 2533 2534 lpfc_sli_mbox_sys_shutdown(phba); 2535} 2536 2537/** 2538 * lpfc_offline - Bring a HBA offline 2539 * @phba: pointer to lpfc hba data structure. 2540 * 2541 * This routine actually brings a HBA offline. It stops all the timers 2542 * associated with the HBA, brings down the SLI layer, and eventually 2543 * marks the HBA as in offline state for the upper layer protocol. 2544 **/ 2545void 2546lpfc_offline(struct lpfc_hba *phba) 2547{ 2548 struct Scsi_Host *shost; 2549 struct lpfc_vport **vports; 2550 int i; 2551 2552 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2553 return; 2554 2555 /* stop port and all timers associated with this hba */ 2556 lpfc_stop_port(phba); 2557 vports = lpfc_create_vport_work_array(phba); 2558 if (vports != NULL) 2559 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2560 lpfc_stop_vport_timers(vports[i]); 2561 lpfc_destroy_vport_work_array(phba, vports); 2562 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2563 "0460 Bring Adapter offline\n"); 2564 /* Bring down the SLI Layer and cleanup. The HBA is offline 2565 now. */ 2566 lpfc_sli_hba_down(phba); 2567 spin_lock_irq(&phba->hbalock); 2568 phba->work_ha = 0; 2569 spin_unlock_irq(&phba->hbalock); 2570 vports = lpfc_create_vport_work_array(phba); 2571 if (vports != NULL) 2572 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2573 shost = lpfc_shost_from_vport(vports[i]); 2574 spin_lock_irq(shost->host_lock); 2575 vports[i]->work_port_events = 0; 2576 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2577 spin_unlock_irq(shost->host_lock); 2578 } 2579 lpfc_destroy_vport_work_array(phba, vports); 2580} 2581 2582/** 2583 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2584 * @phba: pointer to lpfc hba data structure. 2585 * 2586 * This routine is to free all the SCSI buffers and IOCBs from the driver 2587 * list back to kernel. It is called from lpfc_pci_remove_one to free 2588 * the internal resources before the device is removed from the system. 2589 * 2590 * Return codes 2591 * 0 - successful (for now, it always returns 0) 2592 **/ 2593static int 2594lpfc_scsi_free(struct lpfc_hba *phba) 2595{ 2596 struct lpfc_scsi_buf *sb, *sb_next; 2597 struct lpfc_iocbq *io, *io_next; 2598 2599 spin_lock_irq(&phba->hbalock); 2600 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2601 spin_lock(&phba->scsi_buf_list_lock); 2602 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2603 list_del(&sb->list); 2604 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2605 sb->dma_handle); 2606 kfree(sb); 2607 phba->total_scsi_bufs--; 2608 } 2609 spin_unlock(&phba->scsi_buf_list_lock); 2610 2611 /* Release all the lpfc_iocbq entries maintained by this host. */ 2612 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2613 list_del(&io->list); 2614 kfree(io); 2615 phba->total_iocbq_bufs--; 2616 } 2617 spin_unlock_irq(&phba->hbalock); 2618 return 0; 2619} 2620 2621/** 2622 * lpfc_create_port - Create an FC port 2623 * @phba: pointer to lpfc hba data structure. 2624 * @instance: a unique integer ID to this FC port. 2625 * @dev: pointer to the device data structure. 2626 * 2627 * This routine creates a FC port for the upper layer protocol. The FC port 2628 * can be created on top of either a physical port or a virtual port provided 2629 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2630 * and associates the FC port created before adding the shost into the SCSI 2631 * layer. 2632 * 2633 * Return codes 2634 * @vport - pointer to the virtual N_Port data structure. 2635 * NULL - port create failed. 2636 **/ 2637struct lpfc_vport * 2638lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2639{ 2640 struct lpfc_vport *vport; 2641 struct Scsi_Host *shost; 2642 int error = 0; 2643 2644 if (dev != &phba->pcidev->dev) 2645 shost = scsi_host_alloc(&lpfc_vport_template, 2646 sizeof(struct lpfc_vport)); 2647 else 2648 shost = scsi_host_alloc(&lpfc_template, 2649 sizeof(struct lpfc_vport)); 2650 if (!shost) 2651 goto out; 2652 2653 vport = (struct lpfc_vport *) shost->hostdata; 2654 vport->phba = phba; 2655 vport->load_flag |= FC_LOADING; 2656 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2657 vport->fc_rscn_flush = 0; 2658 2659 lpfc_get_vport_cfgparam(vport); 2660 shost->unique_id = instance; 2661 shost->max_id = LPFC_MAX_TARGET; 2662 shost->max_lun = vport->cfg_max_luns; 2663 shost->this_id = -1; 2664 shost->max_cmd_len = 16; 2665 if (phba->sli_rev == LPFC_SLI_REV4) { 2666 shost->dma_boundary = 2667 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 2668 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2669 } 2670 2671 /* 2672 * Set initial can_queue value since 0 is no longer supported and 2673 * scsi_add_host will fail. This will be adjusted later based on the 2674 * max xri value determined in hba setup. 2675 */ 2676 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2677 if (dev != &phba->pcidev->dev) { 2678 shost->transportt = lpfc_vport_transport_template; 2679 vport->port_type = LPFC_NPIV_PORT; 2680 } else { 2681 shost->transportt = lpfc_transport_template; 2682 vport->port_type = LPFC_PHYSICAL_PORT; 2683 } 2684 2685 /* Initialize all internally managed lists. */ 2686 INIT_LIST_HEAD(&vport->fc_nodes); 2687 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2688 spin_lock_init(&vport->work_port_lock); 2689 2690 init_timer(&vport->fc_disctmo); 2691 vport->fc_disctmo.function = lpfc_disc_timeout; 2692 vport->fc_disctmo.data = (unsigned long)vport; 2693 2694 init_timer(&vport->fc_fdmitmo); 2695 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2696 vport->fc_fdmitmo.data = (unsigned long)vport; 2697 2698 init_timer(&vport->els_tmofunc); 2699 vport->els_tmofunc.function = lpfc_els_timeout; 2700 vport->els_tmofunc.data = (unsigned long)vport; 2701 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 2702 if (error) 2703 goto out_put_shost; 2704 2705 spin_lock_irq(&phba->hbalock); 2706 list_add_tail(&vport->listentry, &phba->port_list); 2707 spin_unlock_irq(&phba->hbalock); 2708 return vport; 2709 2710out_put_shost: 2711 scsi_host_put(shost); 2712out: 2713 return NULL; 2714} 2715 2716/** 2717 * destroy_port - destroy an FC port 2718 * @vport: pointer to an lpfc virtual N_Port data structure. 2719 * 2720 * This routine destroys a FC port from the upper layer protocol. All the 2721 * resources associated with the port are released. 2722 **/ 2723void 2724destroy_port(struct lpfc_vport *vport) 2725{ 2726 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2727 struct lpfc_hba *phba = vport->phba; 2728 2729 lpfc_debugfs_terminate(vport); 2730 fc_remove_host(shost); 2731 scsi_remove_host(shost); 2732 2733 spin_lock_irq(&phba->hbalock); 2734 list_del_init(&vport->listentry); 2735 spin_unlock_irq(&phba->hbalock); 2736 2737 lpfc_cleanup(vport); 2738 return; 2739} 2740 2741/** 2742 * lpfc_get_instance - Get a unique integer ID 2743 * 2744 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2745 * uses the kernel idr facility to perform the task. 2746 * 2747 * Return codes: 2748 * instance - a unique integer ID allocated as the new instance. 2749 * -1 - lpfc get instance failed. 2750 **/ 2751int 2752lpfc_get_instance(void) 2753{ 2754 int instance = 0; 2755 2756 /* Assign an unused number */ 2757 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2758 return -1; 2759 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2760 return -1; 2761 return instance; 2762} 2763 2764/** 2765 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2766 * @shost: pointer to SCSI host data structure. 2767 * @time: elapsed time of the scan in jiffies. 2768 * 2769 * This routine is called by the SCSI layer with a SCSI host to determine 2770 * whether the scan host is finished. 2771 * 2772 * Note: there is no scan_start function as adapter initialization will have 2773 * asynchronously kicked off the link initialization. 2774 * 2775 * Return codes 2776 * 0 - SCSI host scan is not over yet. 2777 * 1 - SCSI host scan is over. 2778 **/ 2779int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2780{ 2781 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2782 struct lpfc_hba *phba = vport->phba; 2783 int stat = 0; 2784 2785 spin_lock_irq(shost->host_lock); 2786 2787 if (vport->load_flag & FC_UNLOADING) { 2788 stat = 1; 2789 goto finished; 2790 } 2791 if (time >= 30 * HZ) { 2792 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2793 "0461 Scanning longer than 30 " 2794 "seconds. Continuing initialization\n"); 2795 stat = 1; 2796 goto finished; 2797 } 2798 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2799 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2800 "0465 Link down longer than 15 " 2801 "seconds. Continuing initialization\n"); 2802 stat = 1; 2803 goto finished; 2804 } 2805 2806 if (vport->port_state != LPFC_VPORT_READY) 2807 goto finished; 2808 if (vport->num_disc_nodes || vport->fc_prli_sent) 2809 goto finished; 2810 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2811 goto finished; 2812 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2813 goto finished; 2814 2815 stat = 1; 2816 2817finished: 2818 spin_unlock_irq(shost->host_lock); 2819 return stat; 2820} 2821 2822/** 2823 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 2824 * @shost: pointer to SCSI host data structure. 2825 * 2826 * This routine initializes a given SCSI host attributes on a FC port. The 2827 * SCSI host can be either on top of a physical port or a virtual port. 2828 **/ 2829void lpfc_host_attrib_init(struct Scsi_Host *shost) 2830{ 2831 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2832 struct lpfc_hba *phba = vport->phba; 2833 /* 2834 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2835 */ 2836 2837 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2838 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2839 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2840 2841 memset(fc_host_supported_fc4s(shost), 0, 2842 sizeof(fc_host_supported_fc4s(shost))); 2843 fc_host_supported_fc4s(shost)[2] = 1; 2844 fc_host_supported_fc4s(shost)[7] = 1; 2845 2846 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2847 sizeof fc_host_symbolic_name(shost)); 2848 2849 fc_host_supported_speeds(shost) = 0; 2850 if (phba->lmt & LMT_10Gb) 2851 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2852 if (phba->lmt & LMT_8Gb) 2853 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2854 if (phba->lmt & LMT_4Gb) 2855 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2856 if (phba->lmt & LMT_2Gb) 2857 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2858 if (phba->lmt & LMT_1Gb) 2859 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2860 2861 fc_host_maxframe_size(shost) = 2862 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2863 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2864 2865 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 2866 2867 /* This value is also unchanging */ 2868 memset(fc_host_active_fc4s(shost), 0, 2869 sizeof(fc_host_active_fc4s(shost))); 2870 fc_host_active_fc4s(shost)[2] = 1; 2871 fc_host_active_fc4s(shost)[7] = 1; 2872 2873 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2874 spin_lock_irq(shost->host_lock); 2875 vport->load_flag &= ~FC_LOADING; 2876 spin_unlock_irq(shost->host_lock); 2877} 2878 2879/** 2880 * lpfc_stop_port_s3 - Stop SLI3 device port 2881 * @phba: pointer to lpfc hba data structure. 2882 * 2883 * This routine is invoked to stop an SLI3 device port, it stops the device 2884 * from generating interrupts and stops the device driver's timers for the 2885 * device. 2886 **/ 2887static void 2888lpfc_stop_port_s3(struct lpfc_hba *phba) 2889{ 2890 /* Clear all interrupt enable conditions */ 2891 writel(0, phba->HCregaddr); 2892 readl(phba->HCregaddr); /* flush */ 2893 /* Clear all pending interrupts */ 2894 writel(0xffffffff, phba->HAregaddr); 2895 readl(phba->HAregaddr); /* flush */ 2896 2897 /* Reset some HBA SLI setup states */ 2898 lpfc_stop_hba_timers(phba); 2899 phba->pport->work_port_events = 0; 2900} 2901 2902/** 2903 * lpfc_stop_port_s4 - Stop SLI4 device port 2904 * @phba: pointer to lpfc hba data structure. 2905 * 2906 * This routine is invoked to stop an SLI4 device port, it stops the device 2907 * from generating interrupts and stops the device driver's timers for the 2908 * device. 2909 **/ 2910static void 2911lpfc_stop_port_s4(struct lpfc_hba *phba) 2912{ 2913 /* Reset some HBA SLI4 setup states */ 2914 lpfc_stop_hba_timers(phba); 2915 phba->pport->work_port_events = 0; 2916 phba->sli4_hba.intr_enable = 0; 2917} 2918 2919/** 2920 * lpfc_stop_port - Wrapper function for stopping hba port 2921 * @phba: Pointer to HBA context object. 2922 * 2923 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 2924 * the API jump table function pointer from the lpfc_hba struct. 2925 **/ 2926void 2927lpfc_stop_port(struct lpfc_hba *phba) 2928{ 2929 phba->lpfc_stop_port(phba); 2930} 2931 2932/** 2933 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 2934 * @phba: Pointer to hba for which this call is being executed. 2935 * 2936 * This routine starts the timer waiting for the FCF rediscovery to complete. 2937 **/ 2938void 2939lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 2940{ 2941 unsigned long fcf_redisc_wait_tmo = 2942 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 2943 /* Start fcf rediscovery wait period timer */ 2944 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 2945 spin_lock_irq(&phba->hbalock); 2946 /* Allow action to new fcf asynchronous event */ 2947 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2948 /* Mark the FCF rediscovery pending state */ 2949 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 2950 spin_unlock_irq(&phba->hbalock); 2951} 2952 2953/** 2954 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 2955 * @ptr: Map to lpfc_hba data structure pointer. 2956 * 2957 * This routine is invoked when waiting for FCF table rediscover has been 2958 * timed out. If new FCF record(s) has (have) been discovered during the 2959 * wait period, a new FCF event shall be added to the FCOE async event 2960 * list, and then worker thread shall be waked up for processing from the 2961 * worker thread context. 2962 **/ 2963void 2964lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 2965{ 2966 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 2967 2968 /* Don't send FCF rediscovery event if timer cancelled */ 2969 spin_lock_irq(&phba->hbalock); 2970 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2971 spin_unlock_irq(&phba->hbalock); 2972 return; 2973 } 2974 /* Clear FCF rediscovery timer pending flag */ 2975 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2976 /* FCF rediscovery event to worker thread */ 2977 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 2978 spin_unlock_irq(&phba->hbalock); 2979 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2980 "2776 FCF rediscover quiescent timer expired\n"); 2981 /* wake up worker thread */ 2982 lpfc_worker_wake_up(phba); 2983} 2984 2985/** 2986 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support 2987 * @phba: pointer to lpfc hba data structure. 2988 * 2989 * This function uses the QUERY_FW_CFG mailbox command to determine if the 2990 * firmware loaded supports FCoE. A return of zero indicates that the mailbox 2991 * was successful and the firmware supports FCoE. Any other return indicates 2992 * a error. It is assumed that this function will be called before interrupts 2993 * are enabled. 2994 **/ 2995static int 2996lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba) 2997{ 2998 int rc = 0; 2999 LPFC_MBOXQ_t *mboxq; 3000 struct lpfc_mbx_query_fw_cfg *query_fw_cfg; 3001 uint32_t length; 3002 uint32_t shdr_status, shdr_add_status; 3003 3004 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3005 if (!mboxq) { 3006 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3007 "2621 Failed to allocate mbox for " 3008 "query firmware config cmd\n"); 3009 return -ENOMEM; 3010 } 3011 query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg; 3012 length = (sizeof(struct lpfc_mbx_query_fw_cfg) - 3013 sizeof(struct lpfc_sli4_cfg_mhdr)); 3014 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 3015 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 3016 length, LPFC_SLI4_MBX_EMBED); 3017 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 3018 /* The IOCTL status is embedded in the mailbox subheader. */ 3019 shdr_status = bf_get(lpfc_mbox_hdr_status, 3020 &query_fw_cfg->header.cfg_shdr.response); 3021 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 3022 &query_fw_cfg->header.cfg_shdr.response); 3023 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 3024 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3025 "2622 Query Firmware Config failed " 3026 "mbx status x%x, status x%x add_status x%x\n", 3027 rc, shdr_status, shdr_add_status); 3028 return -EINVAL; 3029 } 3030 if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) { 3031 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3032 "2623 FCoE Function not supported by firmware. " 3033 "Function mode = %08x\n", 3034 query_fw_cfg->function_mode); 3035 return -EINVAL; 3036 } 3037 if (rc != MBX_TIMEOUT) 3038 mempool_free(mboxq, phba->mbox_mem_pool); 3039 return 0; 3040} 3041 3042/** 3043 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3044 * @phba: pointer to lpfc hba data structure. 3045 * @acqe_link: pointer to the async link completion queue entry. 3046 * 3047 * This routine is to parse the SLI4 link-attention link fault code and 3048 * translate it into the base driver's read link attention mailbox command 3049 * status. 3050 * 3051 * Return: Link-attention status in terms of base driver's coding. 3052 **/ 3053static uint16_t 3054lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3055 struct lpfc_acqe_link *acqe_link) 3056{ 3057 uint16_t latt_fault; 3058 3059 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3060 case LPFC_ASYNC_LINK_FAULT_NONE: 3061 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3062 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3063 latt_fault = 0; 3064 break; 3065 default: 3066 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3067 "0398 Invalid link fault code: x%x\n", 3068 bf_get(lpfc_acqe_link_fault, acqe_link)); 3069 latt_fault = MBXERR_ERROR; 3070 break; 3071 } 3072 return latt_fault; 3073} 3074 3075/** 3076 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3077 * @phba: pointer to lpfc hba data structure. 3078 * @acqe_link: pointer to the async link completion queue entry. 3079 * 3080 * This routine is to parse the SLI4 link attention type and translate it 3081 * into the base driver's link attention type coding. 3082 * 3083 * Return: Link attention type in terms of base driver's coding. 3084 **/ 3085static uint8_t 3086lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3087 struct lpfc_acqe_link *acqe_link) 3088{ 3089 uint8_t att_type; 3090 3091 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3092 case LPFC_ASYNC_LINK_STATUS_DOWN: 3093 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3094 att_type = LPFC_ATT_LINK_DOWN; 3095 break; 3096 case LPFC_ASYNC_LINK_STATUS_UP: 3097 /* Ignore physical link up events - wait for logical link up */ 3098 att_type = LPFC_ATT_RESERVED; 3099 break; 3100 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3101 att_type = LPFC_ATT_LINK_UP; 3102 break; 3103 default: 3104 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3105 "0399 Invalid link attention type: x%x\n", 3106 bf_get(lpfc_acqe_link_status, acqe_link)); 3107 att_type = LPFC_ATT_RESERVED; 3108 break; 3109 } 3110 return att_type; 3111} 3112 3113/** 3114 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3115 * @phba: pointer to lpfc hba data structure. 3116 * @acqe_link: pointer to the async link completion queue entry. 3117 * 3118 * This routine is to parse the SLI4 link-attention link speed and translate 3119 * it into the base driver's link-attention link speed coding. 3120 * 3121 * Return: Link-attention link speed in terms of base driver's coding. 3122 **/ 3123static uint8_t 3124lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3125 struct lpfc_acqe_link *acqe_link) 3126{ 3127 uint8_t link_speed; 3128 3129 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3130 case LPFC_ASYNC_LINK_SPEED_ZERO: 3131 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3132 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3133 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3134 break; 3135 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3136 link_speed = LPFC_LINK_SPEED_1GHZ; 3137 break; 3138 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3139 link_speed = LPFC_LINK_SPEED_10GHZ; 3140 break; 3141 default: 3142 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3143 "0483 Invalid link-attention link speed: x%x\n", 3144 bf_get(lpfc_acqe_link_speed, acqe_link)); 3145 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3146 break; 3147 } 3148 return link_speed; 3149} 3150 3151/** 3152 * lpfc_sli4_async_link_evt - Process the asynchronous FC or FCoE link event 3153 * @phba: pointer to lpfc hba data structure. 3154 * @acqe_link: pointer to the async link completion queue entry. 3155 * 3156 * This routine is to handle the SLI4 asynchronous link event. 3157 **/ 3158static void 3159lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3160 struct lpfc_acqe_link *acqe_link) 3161{ 3162 struct lpfc_dmabuf *mp; 3163 LPFC_MBOXQ_t *pmb; 3164 MAILBOX_t *mb; 3165 struct lpfc_mbx_read_top *la; 3166 uint8_t att_type; 3167 int rc; 3168 3169 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3170 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 3171 return; 3172 phba->fcoe_eventtag = acqe_link->event_tag; 3173 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3174 if (!pmb) { 3175 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3176 "0395 The mboxq allocation failed\n"); 3177 return; 3178 } 3179 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3180 if (!mp) { 3181 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3182 "0396 The lpfc_dmabuf allocation failed\n"); 3183 goto out_free_pmb; 3184 } 3185 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3186 if (!mp->virt) { 3187 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3188 "0397 The mbuf allocation failed\n"); 3189 goto out_free_dmabuf; 3190 } 3191 3192 /* Cleanup any outstanding ELS commands */ 3193 lpfc_els_flush_all_cmd(phba); 3194 3195 /* Block ELS IOCBs until we have done process link event */ 3196 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3197 3198 /* Update link event statistics */ 3199 phba->sli.slistat.link_event++; 3200 3201 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3202 lpfc_read_topology(phba, pmb, mp); 3203 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3204 pmb->vport = phba->pport; 3205 3206 /* Keep the link status for extra SLI4 state machine reference */ 3207 phba->sli4_hba.link_state.speed = 3208 bf_get(lpfc_acqe_link_speed, acqe_link); 3209 phba->sli4_hba.link_state.duplex = 3210 bf_get(lpfc_acqe_link_duplex, acqe_link); 3211 phba->sli4_hba.link_state.status = 3212 bf_get(lpfc_acqe_link_status, acqe_link); 3213 phba->sli4_hba.link_state.physical = 3214 bf_get(lpfc_acqe_link_physical, acqe_link); 3215 phba->sli4_hba.link_state.fault = 3216 bf_get(lpfc_acqe_link_fault, acqe_link); 3217 phba->sli4_hba.link_state.logical_speed = 3218 bf_get(lpfc_acqe_qos_link_speed, acqe_link); 3219 /* 3220 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 3221 * topology info. Note: Optional for non FC-AL ports. 3222 */ 3223 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3224 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3225 if (rc == MBX_NOT_FINISHED) 3226 goto out_free_dmabuf; 3227 return; 3228 } 3229 /* 3230 * For FCoE Mode: fill in all the topology information we need and call 3231 * the READ_TOPOLOGY completion routine to continue without actually 3232 * sending the READ_TOPOLOGY mailbox command to the port. 3233 */ 3234 /* Parse and translate status field */ 3235 mb = &pmb->u.mb; 3236 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3237 3238 /* Parse and translate link attention fields */ 3239 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3240 la->eventTag = acqe_link->event_tag; 3241 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 3242 bf_set(lpfc_mbx_read_top_link_spd, la, 3243 lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); 3244 3245 /* Fake the the following irrelvant fields */ 3246 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 3247 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 3248 bf_set(lpfc_mbx_read_top_il, la, 0); 3249 bf_set(lpfc_mbx_read_top_pb, la, 0); 3250 bf_set(lpfc_mbx_read_top_fa, la, 0); 3251 bf_set(lpfc_mbx_read_top_mm, la, 0); 3252 3253 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3254 lpfc_mbx_cmpl_read_topology(phba, pmb); 3255 3256 return; 3257 3258out_free_dmabuf: 3259 kfree(mp); 3260out_free_pmb: 3261 mempool_free(pmb, phba->mbox_mem_pool); 3262} 3263 3264/** 3265 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3266 * @vport: pointer to vport data structure. 3267 * 3268 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3269 * response to a CVL event. 3270 * 3271 * Return the pointer to the ndlp with the vport if successful, otherwise 3272 * return NULL. 3273 **/ 3274static struct lpfc_nodelist * 3275lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3276{ 3277 struct lpfc_nodelist *ndlp; 3278 struct Scsi_Host *shost; 3279 struct lpfc_hba *phba; 3280 3281 if (!vport) 3282 return NULL; 3283 phba = vport->phba; 3284 if (!phba) 3285 return NULL; 3286 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3287 if (!ndlp) { 3288 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3289 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3290 if (!ndlp) 3291 return 0; 3292 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3293 /* Set the node type */ 3294 ndlp->nlp_type |= NLP_FABRIC; 3295 /* Put ndlp onto node list */ 3296 lpfc_enqueue_node(vport, ndlp); 3297 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3298 /* re-setup ndlp without removing from node list */ 3299 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3300 if (!ndlp) 3301 return 0; 3302 } 3303 if ((phba->pport->port_state < LPFC_FLOGI) && 3304 (phba->pport->port_state != LPFC_VPORT_FAILED)) 3305 return NULL; 3306 /* If virtual link is not yet instantiated ignore CVL */ 3307 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 3308 && (vport->port_state != LPFC_VPORT_FAILED)) 3309 return NULL; 3310 shost = lpfc_shost_from_vport(vport); 3311 if (!shost) 3312 return NULL; 3313 lpfc_linkdown_port(vport); 3314 lpfc_cleanup_pending_mbox(vport); 3315 spin_lock_irq(shost->host_lock); 3316 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3317 spin_unlock_irq(shost->host_lock); 3318 3319 return ndlp; 3320} 3321 3322/** 3323 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3324 * @vport: pointer to lpfc hba data structure. 3325 * 3326 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3327 * response to a FCF dead event. 3328 **/ 3329static void 3330lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3331{ 3332 struct lpfc_vport **vports; 3333 int i; 3334 3335 vports = lpfc_create_vport_work_array(phba); 3336 if (vports) 3337 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3338 lpfc_sli4_perform_vport_cvl(vports[i]); 3339 lpfc_destroy_vport_work_array(phba, vports); 3340} 3341 3342/** 3343 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 3344 * @phba: pointer to lpfc hba data structure. 3345 * @acqe_link: pointer to the async fcoe completion queue entry. 3346 * 3347 * This routine is to handle the SLI4 asynchronous fcoe event. 3348 **/ 3349static void 3350lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 3351 struct lpfc_acqe_fcoe *acqe_fcoe) 3352{ 3353 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe); 3354 int rc; 3355 struct lpfc_vport *vport; 3356 struct lpfc_nodelist *ndlp; 3357 struct Scsi_Host *shost; 3358 int active_vlink_present; 3359 struct lpfc_vport **vports; 3360 int i; 3361 3362 phba->fc_eventTag = acqe_fcoe->event_tag; 3363 phba->fcoe_eventtag = acqe_fcoe->event_tag; 3364 switch (event_type) { 3365 case LPFC_FCOE_EVENT_TYPE_NEW_FCF: 3366 case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD: 3367 if (event_type == LPFC_FCOE_EVENT_TYPE_NEW_FCF) 3368 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3369 LOG_DISCOVERY, 3370 "2546 New FCF event, evt_tag:x%x, " 3371 "index:x%x\n", 3372 acqe_fcoe->event_tag, 3373 acqe_fcoe->index); 3374 else 3375 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 3376 LOG_DISCOVERY, 3377 "2788 FCF param modified event, " 3378 "evt_tag:x%x, index:x%x\n", 3379 acqe_fcoe->event_tag, 3380 acqe_fcoe->index); 3381 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3382 /* 3383 * During period of FCF discovery, read the FCF 3384 * table record indexed by the event to update 3385 * FCF roundrobin failover eligible FCF bmask. 3386 */ 3387 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3388 LOG_DISCOVERY, 3389 "2779 Read FCF (x%x) for updating " 3390 "roundrobin FCF failover bmask\n", 3391 acqe_fcoe->index); 3392 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index); 3393 } 3394 3395 /* If the FCF discovery is in progress, do nothing. */ 3396 spin_lock_irq(&phba->hbalock); 3397 if (phba->hba_flag & FCF_TS_INPROG) { 3398 spin_unlock_irq(&phba->hbalock); 3399 break; 3400 } 3401 /* If fast FCF failover rescan event is pending, do nothing */ 3402 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 3403 spin_unlock_irq(&phba->hbalock); 3404 break; 3405 } 3406 3407 /* If the FCF has been in discovered state, do nothing. */ 3408 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 3409 spin_unlock_irq(&phba->hbalock); 3410 break; 3411 } 3412 spin_unlock_irq(&phba->hbalock); 3413 3414 /* Otherwise, scan the entire FCF table and re-discover SAN */ 3415 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3416 "2770 Start FCF table scan per async FCF " 3417 "event, evt_tag:x%x, index:x%x\n", 3418 acqe_fcoe->event_tag, acqe_fcoe->index); 3419 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3420 LPFC_FCOE_FCF_GET_FIRST); 3421 if (rc) 3422 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3423 "2547 Issue FCF scan read FCF mailbox " 3424 "command failed (x%x)\n", rc); 3425 break; 3426 3427 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL: 3428 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3429 "2548 FCF Table full count 0x%x tag 0x%x\n", 3430 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe), 3431 acqe_fcoe->event_tag); 3432 break; 3433 3434 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD: 3435 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3436 "2549 FCF (x%x) disconnected from network, " 3437 "tag:x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag); 3438 /* 3439 * If we are in the middle of FCF failover process, clear 3440 * the corresponding FCF bit in the roundrobin bitmap. 3441 */ 3442 spin_lock_irq(&phba->hbalock); 3443 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3444 spin_unlock_irq(&phba->hbalock); 3445 /* Update FLOGI FCF failover eligible FCF bmask */ 3446 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index); 3447 break; 3448 } 3449 spin_unlock_irq(&phba->hbalock); 3450 3451 /* If the event is not for currently used fcf do nothing */ 3452 if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index) 3453 break; 3454 3455 /* 3456 * Otherwise, request the port to rediscover the entire FCF 3457 * table for a fast recovery from case that the current FCF 3458 * is no longer valid as we are not in the middle of FCF 3459 * failover process already. 3460 */ 3461 spin_lock_irq(&phba->hbalock); 3462 /* Mark the fast failover process in progress */ 3463 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 3464 spin_unlock_irq(&phba->hbalock); 3465 3466 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3467 "2771 Start FCF fast failover process due to " 3468 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 3469 "\n", acqe_fcoe->event_tag, acqe_fcoe->index); 3470 rc = lpfc_sli4_redisc_fcf_table(phba); 3471 if (rc) { 3472 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3473 LOG_DISCOVERY, 3474 "2772 Issue FCF rediscover mabilbox " 3475 "command failed, fail through to FCF " 3476 "dead event\n"); 3477 spin_lock_irq(&phba->hbalock); 3478 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 3479 spin_unlock_irq(&phba->hbalock); 3480 /* 3481 * Last resort will fail over by treating this 3482 * as a link down to FCF registration. 3483 */ 3484 lpfc_sli4_fcf_dead_failthrough(phba); 3485 } else { 3486 /* Reset FCF roundrobin bmask for new discovery */ 3487 memset(phba->fcf.fcf_rr_bmask, 0, 3488 sizeof(*phba->fcf.fcf_rr_bmask)); 3489 /* 3490 * Handling fast FCF failover to a DEAD FCF event is 3491 * considered equalivant to receiving CVL to all vports. 3492 */ 3493 lpfc_sli4_perform_all_vport_cvl(phba); 3494 } 3495 break; 3496 case LPFC_FCOE_EVENT_TYPE_CVL: 3497 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3498 "2718 Clear Virtual Link Received for VPI 0x%x" 3499 " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag); 3500 vport = lpfc_find_vport_by_vpid(phba, 3501 acqe_fcoe->index - phba->vpi_base); 3502 ndlp = lpfc_sli4_perform_vport_cvl(vport); 3503 if (!ndlp) 3504 break; 3505 active_vlink_present = 0; 3506 3507 vports = lpfc_create_vport_work_array(phba); 3508 if (vports) { 3509 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 3510 i++) { 3511 if ((!(vports[i]->fc_flag & 3512 FC_VPORT_CVL_RCVD)) && 3513 (vports[i]->port_state > LPFC_FDISC)) { 3514 active_vlink_present = 1; 3515 break; 3516 } 3517 } 3518 lpfc_destroy_vport_work_array(phba, vports); 3519 } 3520 3521 if (active_vlink_present) { 3522 /* 3523 * If there are other active VLinks present, 3524 * re-instantiate the Vlink using FDISC. 3525 */ 3526 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3527 shost = lpfc_shost_from_vport(vport); 3528 spin_lock_irq(shost->host_lock); 3529 ndlp->nlp_flag |= NLP_DELAY_TMO; 3530 spin_unlock_irq(shost->host_lock); 3531 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 3532 vport->port_state = LPFC_FDISC; 3533 } else { 3534 /* 3535 * Otherwise, we request port to rediscover 3536 * the entire FCF table for a fast recovery 3537 * from possible case that the current FCF 3538 * is no longer valid if we are not already 3539 * in the FCF failover process. 3540 */ 3541 spin_lock_irq(&phba->hbalock); 3542 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3543 spin_unlock_irq(&phba->hbalock); 3544 break; 3545 } 3546 /* Mark the fast failover process in progress */ 3547 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 3548 spin_unlock_irq(&phba->hbalock); 3549 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3550 LOG_DISCOVERY, 3551 "2773 Start FCF failover per CVL, " 3552 "evt_tag:x%x\n", acqe_fcoe->event_tag); 3553 rc = lpfc_sli4_redisc_fcf_table(phba); 3554 if (rc) { 3555 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3556 LOG_DISCOVERY, 3557 "2774 Issue FCF rediscover " 3558 "mabilbox command failed, " 3559 "through to CVL event\n"); 3560 spin_lock_irq(&phba->hbalock); 3561 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 3562 spin_unlock_irq(&phba->hbalock); 3563 /* 3564 * Last resort will be re-try on the 3565 * the current registered FCF entry. 3566 */ 3567 lpfc_retry_pport_discovery(phba); 3568 } else 3569 /* 3570 * Reset FCF roundrobin bmask for new 3571 * discovery. 3572 */ 3573 memset(phba->fcf.fcf_rr_bmask, 0, 3574 sizeof(*phba->fcf.fcf_rr_bmask)); 3575 } 3576 break; 3577 default: 3578 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3579 "0288 Unknown FCoE event type 0x%x event tag " 3580 "0x%x\n", event_type, acqe_fcoe->event_tag); 3581 break; 3582 } 3583} 3584 3585/** 3586 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 3587 * @phba: pointer to lpfc hba data structure. 3588 * @acqe_link: pointer to the async dcbx completion queue entry. 3589 * 3590 * This routine is to handle the SLI4 asynchronous dcbx event. 3591 **/ 3592static void 3593lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 3594 struct lpfc_acqe_dcbx *acqe_dcbx) 3595{ 3596 phba->fc_eventTag = acqe_dcbx->event_tag; 3597 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3598 "0290 The SLI4 DCBX asynchronous event is not " 3599 "handled yet\n"); 3600} 3601 3602/** 3603 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 3604 * @phba: pointer to lpfc hba data structure. 3605 * @acqe_link: pointer to the async grp5 completion queue entry. 3606 * 3607 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 3608 * is an asynchronous notified of a logical link speed change. The Port 3609 * reports the logical link speed in units of 10Mbps. 3610 **/ 3611static void 3612lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 3613 struct lpfc_acqe_grp5 *acqe_grp5) 3614{ 3615 uint16_t prev_ll_spd; 3616 3617 phba->fc_eventTag = acqe_grp5->event_tag; 3618 phba->fcoe_eventtag = acqe_grp5->event_tag; 3619 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 3620 phba->sli4_hba.link_state.logical_speed = 3621 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); 3622 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3623 "2789 GRP5 Async Event: Updating logical link speed " 3624 "from %dMbps to %dMbps\n", (prev_ll_spd * 10), 3625 (phba->sli4_hba.link_state.logical_speed*10)); 3626} 3627 3628/** 3629 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3630 * @phba: pointer to lpfc hba data structure. 3631 * 3632 * This routine is invoked by the worker thread to process all the pending 3633 * SLI4 asynchronous events. 3634 **/ 3635void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3636{ 3637 struct lpfc_cq_event *cq_event; 3638 3639 /* First, declare the async event has been handled */ 3640 spin_lock_irq(&phba->hbalock); 3641 phba->hba_flag &= ~ASYNC_EVENT; 3642 spin_unlock_irq(&phba->hbalock); 3643 /* Now, handle all the async events */ 3644 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3645 /* Get the first event from the head of the event queue */ 3646 spin_lock_irq(&phba->hbalock); 3647 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3648 cq_event, struct lpfc_cq_event, list); 3649 spin_unlock_irq(&phba->hbalock); 3650 /* Process the asynchronous event */ 3651 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3652 case LPFC_TRAILER_CODE_LINK: 3653 case LPFC_TRAILER_CODE_FC: 3654 lpfc_sli4_async_link_evt(phba, 3655 &cq_event->cqe.acqe_link); 3656 break; 3657 case LPFC_TRAILER_CODE_FCOE: 3658 lpfc_sli4_async_fip_evt(phba, 3659 &cq_event->cqe.acqe_fcoe); 3660 break; 3661 case LPFC_TRAILER_CODE_DCBX: 3662 lpfc_sli4_async_dcbx_evt(phba, 3663 &cq_event->cqe.acqe_dcbx); 3664 break; 3665 case LPFC_TRAILER_CODE_GRP5: 3666 lpfc_sli4_async_grp5_evt(phba, 3667 &cq_event->cqe.acqe_grp5); 3668 break; 3669 default: 3670 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3671 "1804 Invalid asynchrous event code: " 3672 "x%x\n", bf_get(lpfc_trailer_code, 3673 &cq_event->cqe.mcqe_cmpl)); 3674 break; 3675 } 3676 /* Free the completion event processed to the free pool */ 3677 lpfc_sli4_cq_event_release(phba, cq_event); 3678 } 3679} 3680 3681/** 3682 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 3683 * @phba: pointer to lpfc hba data structure. 3684 * 3685 * This routine is invoked by the worker thread to process FCF table 3686 * rediscovery pending completion event. 3687 **/ 3688void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 3689{ 3690 int rc; 3691 3692 spin_lock_irq(&phba->hbalock); 3693 /* Clear FCF rediscovery timeout event */ 3694 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 3695 /* Clear driver fast failover FCF record flag */ 3696 phba->fcf.failover_rec.flag = 0; 3697 /* Set state for FCF fast failover */ 3698 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 3699 spin_unlock_irq(&phba->hbalock); 3700 3701 /* Scan FCF table from the first entry to re-discover SAN */ 3702 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3703 "2777 Start post-quiescent FCF table scan\n"); 3704 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 3705 if (rc) 3706 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3707 "2747 Issue FCF scan read FCF mailbox " 3708 "command failed 0x%x\n", rc); 3709} 3710 3711/** 3712 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3713 * @phba: pointer to lpfc hba data structure. 3714 * @dev_grp: The HBA PCI-Device group number. 3715 * 3716 * This routine is invoked to set up the per HBA PCI-Device group function 3717 * API jump table entries. 3718 * 3719 * Return: 0 if success, otherwise -ENODEV 3720 **/ 3721int 3722lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3723{ 3724 int rc; 3725 3726 /* Set up lpfc PCI-device group */ 3727 phba->pci_dev_grp = dev_grp; 3728 3729 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3730 if (dev_grp == LPFC_PCI_DEV_OC) 3731 phba->sli_rev = LPFC_SLI_REV4; 3732 3733 /* Set up device INIT API function jump table */ 3734 rc = lpfc_init_api_table_setup(phba, dev_grp); 3735 if (rc) 3736 return -ENODEV; 3737 /* Set up SCSI API function jump table */ 3738 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3739 if (rc) 3740 return -ENODEV; 3741 /* Set up SLI API function jump table */ 3742 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3743 if (rc) 3744 return -ENODEV; 3745 /* Set up MBOX API function jump table */ 3746 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3747 if (rc) 3748 return -ENODEV; 3749 3750 return 0; 3751} 3752 3753/** 3754 * lpfc_log_intr_mode - Log the active interrupt mode 3755 * @phba: pointer to lpfc hba data structure. 3756 * @intr_mode: active interrupt mode adopted. 3757 * 3758 * This routine it invoked to log the currently used active interrupt mode 3759 * to the device. 3760 **/ 3761static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3762{ 3763 switch (intr_mode) { 3764 case 0: 3765 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3766 "0470 Enable INTx interrupt mode.\n"); 3767 break; 3768 case 1: 3769 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3770 "0481 Enabled MSI interrupt mode.\n"); 3771 break; 3772 case 2: 3773 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3774 "0480 Enabled MSI-X interrupt mode.\n"); 3775 break; 3776 default: 3777 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3778 "0482 Illegal interrupt mode.\n"); 3779 break; 3780 } 3781 return; 3782} 3783 3784/** 3785 * lpfc_enable_pci_dev - Enable a generic PCI device. 3786 * @phba: pointer to lpfc hba data structure. 3787 * 3788 * This routine is invoked to enable the PCI device that is common to all 3789 * PCI devices. 3790 * 3791 * Return codes 3792 * 0 - successful 3793 * other values - error 3794 **/ 3795static int 3796lpfc_enable_pci_dev(struct lpfc_hba *phba) 3797{ 3798 struct pci_dev *pdev; 3799 int bars; 3800 3801 /* Obtain PCI device reference */ 3802 if (!phba->pcidev) 3803 goto out_error; 3804 else 3805 pdev = phba->pcidev; 3806 /* Select PCI BARs */ 3807 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3808 /* Enable PCI device */ 3809 if (pci_enable_device_mem(pdev)) 3810 goto out_error; 3811 /* Request PCI resource for the device */ 3812 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3813 goto out_disable_device; 3814 /* Set up device as PCI master and save state for EEH */ 3815 pci_set_master(pdev); 3816 pci_try_set_mwi(pdev); 3817 pci_save_state(pdev); 3818 3819 return 0; 3820 3821out_disable_device: 3822 pci_disable_device(pdev); 3823out_error: 3824 return -ENODEV; 3825} 3826 3827/** 3828 * lpfc_disable_pci_dev - Disable a generic PCI device. 3829 * @phba: pointer to lpfc hba data structure. 3830 * 3831 * This routine is invoked to disable the PCI device that is common to all 3832 * PCI devices. 3833 **/ 3834static void 3835lpfc_disable_pci_dev(struct lpfc_hba *phba) 3836{ 3837 struct pci_dev *pdev; 3838 int bars; 3839 3840 /* Obtain PCI device reference */ 3841 if (!phba->pcidev) 3842 return; 3843 else 3844 pdev = phba->pcidev; 3845 /* Select PCI BARs */ 3846 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3847 /* Release PCI resource and disable PCI device */ 3848 pci_release_selected_regions(pdev, bars); 3849 pci_disable_device(pdev); 3850 /* Null out PCI private reference to driver */ 3851 pci_set_drvdata(pdev, NULL); 3852 3853 return; 3854} 3855 3856/** 3857 * lpfc_reset_hba - Reset a hba 3858 * @phba: pointer to lpfc hba data structure. 3859 * 3860 * This routine is invoked to reset a hba device. It brings the HBA 3861 * offline, performs a board restart, and then brings the board back 3862 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 3863 * on outstanding mailbox commands. 3864 **/ 3865void 3866lpfc_reset_hba(struct lpfc_hba *phba) 3867{ 3868 /* If resets are disabled then set error state and return. */ 3869 if (!phba->cfg_enable_hba_reset) { 3870 phba->link_state = LPFC_HBA_ERROR; 3871 return; 3872 } 3873 lpfc_offline_prep(phba); 3874 lpfc_offline(phba); 3875 lpfc_sli_brdrestart(phba); 3876 lpfc_online(phba); 3877 lpfc_unblock_mgmt_io(phba); 3878} 3879 3880/** 3881 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 3882 * @phba: pointer to lpfc hba data structure. 3883 * 3884 * This routine is invoked to set up the driver internal resources specific to 3885 * support the SLI-3 HBA device it attached to. 3886 * 3887 * Return codes 3888 * 0 - successful 3889 * other values - error 3890 **/ 3891static int 3892lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 3893{ 3894 struct lpfc_sli *psli; 3895 3896 /* 3897 * Initialize timers used by driver 3898 */ 3899 3900 /* Heartbeat timer */ 3901 init_timer(&phba->hb_tmofunc); 3902 phba->hb_tmofunc.function = lpfc_hb_timeout; 3903 phba->hb_tmofunc.data = (unsigned long)phba; 3904 3905 psli = &phba->sli; 3906 /* MBOX heartbeat timer */ 3907 init_timer(&psli->mbox_tmo); 3908 psli->mbox_tmo.function = lpfc_mbox_timeout; 3909 psli->mbox_tmo.data = (unsigned long) phba; 3910 /* FCP polling mode timer */ 3911 init_timer(&phba->fcp_poll_timer); 3912 phba->fcp_poll_timer.function = lpfc_poll_timeout; 3913 phba->fcp_poll_timer.data = (unsigned long) phba; 3914 /* Fabric block timer */ 3915 init_timer(&phba->fabric_block_timer); 3916 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3917 phba->fabric_block_timer.data = (unsigned long) phba; 3918 /* EA polling mode timer */ 3919 init_timer(&phba->eratt_poll); 3920 phba->eratt_poll.function = lpfc_poll_eratt; 3921 phba->eratt_poll.data = (unsigned long) phba; 3922 3923 /* Host attention work mask setup */ 3924 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 3925 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 3926 3927 /* Get all the module params for configuring this host */ 3928 lpfc_get_cfgparam(phba); 3929 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 3930 phba->menlo_flag |= HBA_MENLO_SUPPORT; 3931 /* check for menlo minimum sg count */ 3932 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 3933 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 3934 } 3935 3936 /* 3937 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3938 * used to create the sg_dma_buf_pool must be dynamically calculated. 3939 * 2 segments are added since the IOCB needs a command and response bde. 3940 */ 3941 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 3942 sizeof(struct fcp_rsp) + 3943 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 3944 3945 if (phba->cfg_enable_bg) { 3946 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 3947 phba->cfg_sg_dma_buf_size += 3948 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 3949 } 3950 3951 /* Also reinitialize the host templates with new values. */ 3952 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3953 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3954 3955 phba->max_vpi = LPFC_MAX_VPI; 3956 /* This will be set to correct value after config_port mbox */ 3957 phba->max_vports = 0; 3958 3959 /* 3960 * Initialize the SLI Layer to run with lpfc HBAs. 3961 */ 3962 lpfc_sli_setup(phba); 3963 lpfc_sli_queue_setup(phba); 3964 3965 /* Allocate device driver memory */ 3966 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 3967 return -ENOMEM; 3968 3969 return 0; 3970} 3971 3972/** 3973 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 3974 * @phba: pointer to lpfc hba data structure. 3975 * 3976 * This routine is invoked to unset the driver internal resources set up 3977 * specific for supporting the SLI-3 HBA device it attached to. 3978 **/ 3979static void 3980lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 3981{ 3982 /* Free device driver memory allocated */ 3983 lpfc_mem_free_all(phba); 3984 3985 return; 3986} 3987 3988/** 3989 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 3990 * @phba: pointer to lpfc hba data structure. 3991 * 3992 * This routine is invoked to set up the driver internal resources specific to 3993 * support the SLI-4 HBA device it attached to. 3994 * 3995 * Return codes 3996 * 0 - successful 3997 * other values - error 3998 **/ 3999static int 4000lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 4001{ 4002 struct lpfc_sli *psli; 4003 LPFC_MBOXQ_t *mboxq; 4004 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 4005 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 4006 struct lpfc_mqe *mqe; 4007 int longs, sli_family; 4008 4009 /* Before proceed, wait for POST done and device ready */ 4010 rc = lpfc_sli4_post_status_check(phba); 4011 if (rc) 4012 return -ENODEV; 4013 4014 /* 4015 * Initialize timers used by driver 4016 */ 4017 4018 /* Heartbeat timer */ 4019 init_timer(&phba->hb_tmofunc); 4020 phba->hb_tmofunc.function = lpfc_hb_timeout; 4021 phba->hb_tmofunc.data = (unsigned long)phba; 4022 init_timer(&phba->rrq_tmr); 4023 phba->rrq_tmr.function = lpfc_rrq_timeout; 4024 phba->rrq_tmr.data = (unsigned long)phba; 4025 4026 psli = &phba->sli; 4027 /* MBOX heartbeat timer */ 4028 init_timer(&psli->mbox_tmo); 4029 psli->mbox_tmo.function = lpfc_mbox_timeout; 4030 psli->mbox_tmo.data = (unsigned long) phba; 4031 /* Fabric block timer */ 4032 init_timer(&phba->fabric_block_timer); 4033 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4034 phba->fabric_block_timer.data = (unsigned long) phba; 4035 /* EA polling mode timer */ 4036 init_timer(&phba->eratt_poll); 4037 phba->eratt_poll.function = lpfc_poll_eratt; 4038 phba->eratt_poll.data = (unsigned long) phba; 4039 /* FCF rediscover timer */ 4040 init_timer(&phba->fcf.redisc_wait); 4041 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4042 phba->fcf.redisc_wait.data = (unsigned long)phba; 4043 4044 /* 4045 * We need to do a READ_CONFIG mailbox command here before 4046 * calling lpfc_get_cfgparam. For VFs this will report the 4047 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 4048 * All of the resources allocated 4049 * for this Port are tied to these values. 4050 */ 4051 /* Get all the module params for configuring this host */ 4052 lpfc_get_cfgparam(phba); 4053 phba->max_vpi = LPFC_MAX_VPI; 4054 /* This will be set to correct value after the read_config mbox */ 4055 phba->max_vports = 0; 4056 4057 /* Program the default value of vlan_id and fc_map */ 4058 phba->valid_vlan = 0; 4059 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4060 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4061 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4062 4063 /* 4064 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4065 * used to create the sg_dma_buf_pool must be dynamically calculated. 4066 * 2 segments are added since the IOCB needs a command and response bde. 4067 * To insure that the scsi sgl does not cross a 4k page boundary only 4068 * sgl sizes of must be a power of 2. 4069 */ 4070 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 4071 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge))); 4072 4073 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf); 4074 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4075 switch (sli_family) { 4076 case LPFC_SLI_INTF_FAMILY_BE2: 4077 case LPFC_SLI_INTF_FAMILY_BE3: 4078 /* There is a single hint for BE - 2 pages per BPL. */ 4079 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) == 4080 LPFC_SLI_INTF_SLI_HINT1_1) 4081 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4082 break; 4083 case LPFC_SLI_INTF_FAMILY_LNCR_A0: 4084 case LPFC_SLI_INTF_FAMILY_LNCR_B0: 4085 default: 4086 break; 4087 } 4088 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4089 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4090 dma_buf_size = dma_buf_size << 1) 4091 ; 4092 if (dma_buf_size == max_buf_size) 4093 phba->cfg_sg_seg_cnt = (dma_buf_size - 4094 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4095 (2 * sizeof(struct sli4_sge))) / 4096 sizeof(struct sli4_sge); 4097 phba->cfg_sg_dma_buf_size = dma_buf_size; 4098 4099 /* Initialize buffer queue management fields */ 4100 hbq_count = lpfc_sli_hbq_count(); 4101 for (i = 0; i < hbq_count; ++i) 4102 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4103 INIT_LIST_HEAD(&phba->rb_pend_list); 4104 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4105 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4106 4107 /* 4108 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4109 */ 4110 /* Initialize the Abort scsi buffer list used by driver */ 4111 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4112 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4113 /* This abort list used by worker thread */ 4114 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4115 4116 /* 4117 * Initialize dirver internal slow-path work queues 4118 */ 4119 4120 /* Driver internel slow-path CQ Event pool */ 4121 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4122 /* Response IOCB work queue list */ 4123 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4124 /* Asynchronous event CQ Event work queue list */ 4125 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4126 /* Fast-path XRI aborted CQ Event work queue list */ 4127 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4128 /* Slow-path XRI aborted CQ Event work queue list */ 4129 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4130 /* Receive queue CQ Event work queue list */ 4131 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4132 4133 /* Initialize the driver internal SLI layer lists. */ 4134 lpfc_sli_setup(phba); 4135 lpfc_sli_queue_setup(phba); 4136 4137 /* Allocate device driver memory */ 4138 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4139 if (rc) 4140 return -ENOMEM; 4141 4142 /* Create the bootstrap mailbox command */ 4143 rc = lpfc_create_bootstrap_mbox(phba); 4144 if (unlikely(rc)) 4145 goto out_free_mem; 4146 4147 /* Set up the host's endian order with the device. */ 4148 rc = lpfc_setup_endian_order(phba); 4149 if (unlikely(rc)) 4150 goto out_free_bsmbx; 4151 4152 rc = lpfc_sli4_fw_cfg_check(phba); 4153 if (unlikely(rc)) 4154 goto out_free_bsmbx; 4155 4156 /* Set up the hba's configuration parameters. */ 4157 rc = lpfc_sli4_read_config(phba); 4158 if (unlikely(rc)) 4159 goto out_free_bsmbx; 4160 4161 /* Perform a function reset */ 4162 rc = lpfc_pci_function_reset(phba); 4163 if (unlikely(rc)) 4164 goto out_free_bsmbx; 4165 4166 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4167 GFP_KERNEL); 4168 if (!mboxq) { 4169 rc = -ENOMEM; 4170 goto out_free_bsmbx; 4171 } 4172 4173 /* Get the Supported Pages. It is always available. */ 4174 lpfc_supported_pages(mboxq); 4175 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4176 if (unlikely(rc)) { 4177 rc = -EIO; 4178 mempool_free(mboxq, phba->mbox_mem_pool); 4179 goto out_free_bsmbx; 4180 } 4181 4182 mqe = &mboxq->u.mqe; 4183 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4184 LPFC_MAX_SUPPORTED_PAGES); 4185 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4186 switch (pn_page[i]) { 4187 case LPFC_SLI4_PARAMETERS: 4188 phba->sli4_hba.pc_sli4_params.supported = 1; 4189 break; 4190 default: 4191 break; 4192 } 4193 } 4194 4195 /* Read the port's SLI4 Parameters capabilities if supported. */ 4196 if (phba->sli4_hba.pc_sli4_params.supported) 4197 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4198 mempool_free(mboxq, phba->mbox_mem_pool); 4199 if (rc) { 4200 rc = -EIO; 4201 goto out_free_bsmbx; 4202 } 4203 /* Create all the SLI4 queues */ 4204 rc = lpfc_sli4_queue_create(phba); 4205 if (rc) 4206 goto out_free_bsmbx; 4207 4208 /* Create driver internal CQE event pool */ 4209 rc = lpfc_sli4_cq_event_pool_create(phba); 4210 if (rc) 4211 goto out_destroy_queue; 4212 4213 /* Initialize and populate the iocb list per host */ 4214 rc = lpfc_init_sgl_list(phba); 4215 if (rc) { 4216 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4217 "1400 Failed to initialize sgl list.\n"); 4218 goto out_destroy_cq_event_pool; 4219 } 4220 rc = lpfc_init_active_sgl_array(phba); 4221 if (rc) { 4222 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4223 "1430 Failed to initialize sgl list.\n"); 4224 goto out_free_sgl_list; 4225 } 4226 4227 rc = lpfc_sli4_init_rpi_hdrs(phba); 4228 if (rc) { 4229 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4230 "1432 Failed to initialize rpi headers.\n"); 4231 goto out_free_active_sgl; 4232 } 4233 4234 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 4235 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 4236 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 4237 GFP_KERNEL); 4238 if (!phba->fcf.fcf_rr_bmask) { 4239 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4240 "2759 Failed allocate memory for FCF round " 4241 "robin failover bmask\n"); 4242 goto out_remove_rpi_hdrs; 4243 } 4244 4245 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 4246 phba->cfg_fcp_eq_count), GFP_KERNEL); 4247 if (!phba->sli4_hba.fcp_eq_hdl) { 4248 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4249 "2572 Failed allocate memory for fast-path " 4250 "per-EQ handle array\n"); 4251 goto out_free_fcf_rr_bmask; 4252 } 4253 4254 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 4255 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 4256 if (!phba->sli4_hba.msix_entries) { 4257 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4258 "2573 Failed allocate memory for msi-x " 4259 "interrupt vector entries\n"); 4260 goto out_free_fcp_eq_hdl; 4261 } 4262 4263 return rc; 4264 4265out_free_fcp_eq_hdl: 4266 kfree(phba->sli4_hba.fcp_eq_hdl); 4267out_free_fcf_rr_bmask: 4268 kfree(phba->fcf.fcf_rr_bmask); 4269out_remove_rpi_hdrs: 4270 lpfc_sli4_remove_rpi_hdrs(phba); 4271out_free_active_sgl: 4272 lpfc_free_active_sgl(phba); 4273out_free_sgl_list: 4274 lpfc_free_sgl_list(phba); 4275out_destroy_cq_event_pool: 4276 lpfc_sli4_cq_event_pool_destroy(phba); 4277out_destroy_queue: 4278 lpfc_sli4_queue_destroy(phba); 4279out_free_bsmbx: 4280 lpfc_destroy_bootstrap_mbox(phba); 4281out_free_mem: 4282 lpfc_mem_free(phba); 4283 return rc; 4284} 4285 4286/** 4287 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 4288 * @phba: pointer to lpfc hba data structure. 4289 * 4290 * This routine is invoked to unset the driver internal resources set up 4291 * specific for supporting the SLI-4 HBA device it attached to. 4292 **/ 4293static void 4294lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 4295{ 4296 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4297 4298 /* Free memory allocated for msi-x interrupt vector entries */ 4299 kfree(phba->sli4_hba.msix_entries); 4300 4301 /* Free memory allocated for fast-path work queue handles */ 4302 kfree(phba->sli4_hba.fcp_eq_hdl); 4303 4304 /* Free the allocated rpi headers. */ 4305 lpfc_sli4_remove_rpi_hdrs(phba); 4306 lpfc_sli4_remove_rpis(phba); 4307 4308 /* Free eligible FCF index bmask */ 4309 kfree(phba->fcf.fcf_rr_bmask); 4310 4311 /* Free the ELS sgl list */ 4312 lpfc_free_active_sgl(phba); 4313 lpfc_free_sgl_list(phba); 4314 4315 /* Free the SCSI sgl management array */ 4316 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4317 4318 /* Free the SLI4 queues */ 4319 lpfc_sli4_queue_destroy(phba); 4320 4321 /* Free the completion queue EQ event pool */ 4322 lpfc_sli4_cq_event_release_all(phba); 4323 lpfc_sli4_cq_event_pool_destroy(phba); 4324 4325 /* Free the bsmbx region. */ 4326 lpfc_destroy_bootstrap_mbox(phba); 4327 4328 /* Free the SLI Layer memory with SLI4 HBAs */ 4329 lpfc_mem_free_all(phba); 4330 4331 /* Free the current connect table */ 4332 list_for_each_entry_safe(conn_entry, next_conn_entry, 4333 &phba->fcf_conn_rec_list, list) { 4334 list_del_init(&conn_entry->list); 4335 kfree(conn_entry); 4336 } 4337 4338 return; 4339} 4340 4341/** 4342 * lpfc_init_api_table_setup - Set up init api fucntion jump table 4343 * @phba: The hba struct for which this call is being executed. 4344 * @dev_grp: The HBA PCI-Device group number. 4345 * 4346 * This routine sets up the device INIT interface API function jump table 4347 * in @phba struct. 4348 * 4349 * Returns: 0 - success, -ENODEV - failure. 4350 **/ 4351int 4352lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4353{ 4354 phba->lpfc_hba_init_link = lpfc_hba_init_link; 4355 phba->lpfc_hba_down_link = lpfc_hba_down_link; 4356 switch (dev_grp) { 4357 case LPFC_PCI_DEV_LP: 4358 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 4359 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 4360 phba->lpfc_stop_port = lpfc_stop_port_s3; 4361 break; 4362 case LPFC_PCI_DEV_OC: 4363 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 4364 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 4365 phba->lpfc_stop_port = lpfc_stop_port_s4; 4366 break; 4367 default: 4368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4369 "1431 Invalid HBA PCI-device group: 0x%x\n", 4370 dev_grp); 4371 return -ENODEV; 4372 break; 4373 } 4374 return 0; 4375} 4376 4377/** 4378 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 4379 * @phba: pointer to lpfc hba data structure. 4380 * 4381 * This routine is invoked to set up the driver internal resources before the 4382 * device specific resource setup to support the HBA device it attached to. 4383 * 4384 * Return codes 4385 * 0 - successful 4386 * other values - error 4387 **/ 4388static int 4389lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 4390{ 4391 /* 4392 * Driver resources common to all SLI revisions 4393 */ 4394 atomic_set(&phba->fast_event_count, 0); 4395 spin_lock_init(&phba->hbalock); 4396 4397 /* Initialize ndlp management spinlock */ 4398 spin_lock_init(&phba->ndlp_lock); 4399 4400 INIT_LIST_HEAD(&phba->port_list); 4401 INIT_LIST_HEAD(&phba->work_list); 4402 init_waitqueue_head(&phba->wait_4_mlo_m_q); 4403 4404 /* Initialize the wait queue head for the kernel thread */ 4405 init_waitqueue_head(&phba->work_waitq); 4406 4407 /* Initialize the scsi buffer list used by driver for scsi IO */ 4408 spin_lock_init(&phba->scsi_buf_list_lock); 4409 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 4410 4411 /* Initialize the fabric iocb list */ 4412 INIT_LIST_HEAD(&phba->fabric_iocb_list); 4413 4414 /* Initialize list to save ELS buffers */ 4415 INIT_LIST_HEAD(&phba->elsbuf); 4416 4417 /* Initialize FCF connection rec list */ 4418 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 4419 4420 return 0; 4421} 4422 4423/** 4424 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 4425 * @phba: pointer to lpfc hba data structure. 4426 * 4427 * This routine is invoked to set up the driver internal resources after the 4428 * device specific resource setup to support the HBA device it attached to. 4429 * 4430 * Return codes 4431 * 0 - successful 4432 * other values - error 4433 **/ 4434static int 4435lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 4436{ 4437 int error; 4438 4439 /* Startup the kernel thread for this host adapter. */ 4440 phba->worker_thread = kthread_run(lpfc_do_work, phba, 4441 "lpfc_worker_%d", phba->brd_no); 4442 if (IS_ERR(phba->worker_thread)) { 4443 error = PTR_ERR(phba->worker_thread); 4444 return error; 4445 } 4446 4447 return 0; 4448} 4449 4450/** 4451 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 4452 * @phba: pointer to lpfc hba data structure. 4453 * 4454 * This routine is invoked to unset the driver internal resources set up after 4455 * the device specific resource setup for supporting the HBA device it 4456 * attached to. 4457 **/ 4458static void 4459lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 4460{ 4461 /* Stop kernel worker thread */ 4462 kthread_stop(phba->worker_thread); 4463} 4464 4465/** 4466 * lpfc_free_iocb_list - Free iocb list. 4467 * @phba: pointer to lpfc hba data structure. 4468 * 4469 * This routine is invoked to free the driver's IOCB list and memory. 4470 **/ 4471static void 4472lpfc_free_iocb_list(struct lpfc_hba *phba) 4473{ 4474 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 4475 4476 spin_lock_irq(&phba->hbalock); 4477 list_for_each_entry_safe(iocbq_entry, iocbq_next, 4478 &phba->lpfc_iocb_list, list) { 4479 list_del(&iocbq_entry->list); 4480 kfree(iocbq_entry); 4481 phba->total_iocbq_bufs--; 4482 } 4483 spin_unlock_irq(&phba->hbalock); 4484 4485 return; 4486} 4487 4488/** 4489 * lpfc_init_iocb_list - Allocate and initialize iocb list. 4490 * @phba: pointer to lpfc hba data structure. 4491 * 4492 * This routine is invoked to allocate and initizlize the driver's IOCB 4493 * list and set up the IOCB tag array accordingly. 4494 * 4495 * Return codes 4496 * 0 - successful 4497 * other values - error 4498 **/ 4499static int 4500lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 4501{ 4502 struct lpfc_iocbq *iocbq_entry = NULL; 4503 uint16_t iotag; 4504 int i; 4505 4506 /* Initialize and populate the iocb list per host. */ 4507 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 4508 for (i = 0; i < iocb_count; i++) { 4509 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 4510 if (iocbq_entry == NULL) { 4511 printk(KERN_ERR "%s: only allocated %d iocbs of " 4512 "expected %d count. Unloading driver.\n", 4513 __func__, i, LPFC_IOCB_LIST_CNT); 4514 goto out_free_iocbq; 4515 } 4516 4517 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 4518 if (iotag == 0) { 4519 kfree(iocbq_entry); 4520 printk(KERN_ERR "%s: failed to allocate IOTAG. " 4521 "Unloading driver.\n", __func__); 4522 goto out_free_iocbq; 4523 } 4524 iocbq_entry->sli4_xritag = NO_XRI; 4525 4526 spin_lock_irq(&phba->hbalock); 4527 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 4528 phba->total_iocbq_bufs++; 4529 spin_unlock_irq(&phba->hbalock); 4530 } 4531 4532 return 0; 4533 4534out_free_iocbq: 4535 lpfc_free_iocb_list(phba); 4536 4537 return -ENOMEM; 4538} 4539 4540/** 4541 * lpfc_free_sgl_list - Free sgl list. 4542 * @phba: pointer to lpfc hba data structure. 4543 * 4544 * This routine is invoked to free the driver's sgl list and memory. 4545 **/ 4546static void 4547lpfc_free_sgl_list(struct lpfc_hba *phba) 4548{ 4549 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 4550 LIST_HEAD(sglq_list); 4551 4552 spin_lock_irq(&phba->hbalock); 4553 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 4554 spin_unlock_irq(&phba->hbalock); 4555 4556 list_for_each_entry_safe(sglq_entry, sglq_next, 4557 &sglq_list, list) { 4558 list_del(&sglq_entry->list); 4559 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 4560 kfree(sglq_entry); 4561 phba->sli4_hba.total_sglq_bufs--; 4562 } 4563 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4564} 4565 4566/** 4567 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 4568 * @phba: pointer to lpfc hba data structure. 4569 * 4570 * This routine is invoked to allocate the driver's active sgl memory. 4571 * This array will hold the sglq_entry's for active IOs. 4572 **/ 4573static int 4574lpfc_init_active_sgl_array(struct lpfc_hba *phba) 4575{ 4576 int size; 4577 size = sizeof(struct lpfc_sglq *); 4578 size *= phba->sli4_hba.max_cfg_param.max_xri; 4579 4580 phba->sli4_hba.lpfc_sglq_active_list = 4581 kzalloc(size, GFP_KERNEL); 4582 if (!phba->sli4_hba.lpfc_sglq_active_list) 4583 return -ENOMEM; 4584 return 0; 4585} 4586 4587/** 4588 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 4589 * @phba: pointer to lpfc hba data structure. 4590 * 4591 * This routine is invoked to walk through the array of active sglq entries 4592 * and free all of the resources. 4593 * This is just a place holder for now. 4594 **/ 4595static void 4596lpfc_free_active_sgl(struct lpfc_hba *phba) 4597{ 4598 kfree(phba->sli4_hba.lpfc_sglq_active_list); 4599} 4600 4601/** 4602 * lpfc_init_sgl_list - Allocate and initialize sgl list. 4603 * @phba: pointer to lpfc hba data structure. 4604 * 4605 * This routine is invoked to allocate and initizlize the driver's sgl 4606 * list and set up the sgl xritag tag array accordingly. 4607 * 4608 * Return codes 4609 * 0 - successful 4610 * other values - error 4611 **/ 4612static int 4613lpfc_init_sgl_list(struct lpfc_hba *phba) 4614{ 4615 struct lpfc_sglq *sglq_entry = NULL; 4616 int i; 4617 int els_xri_cnt; 4618 4619 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 4620 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4621 "2400 lpfc_init_sgl_list els %d.\n", 4622 els_xri_cnt); 4623 /* Initialize and populate the sglq list per host/VF. */ 4624 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 4625 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 4626 4627 /* Sanity check on XRI management */ 4628 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 4629 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4630 "2562 No room left for SCSI XRI allocation: " 4631 "max_xri=%d, els_xri=%d\n", 4632 phba->sli4_hba.max_cfg_param.max_xri, 4633 els_xri_cnt); 4634 return -ENOMEM; 4635 } 4636 4637 /* Allocate memory for the ELS XRI management array */ 4638 phba->sli4_hba.lpfc_els_sgl_array = 4639 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 4640 GFP_KERNEL); 4641 4642 if (!phba->sli4_hba.lpfc_els_sgl_array) { 4643 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4644 "2401 Failed to allocate memory for ELS " 4645 "XRI management array of size %d.\n", 4646 els_xri_cnt); 4647 return -ENOMEM; 4648 } 4649 4650 /* Keep the SCSI XRI into the XRI management array */ 4651 phba->sli4_hba.scsi_xri_max = 4652 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 4653 phba->sli4_hba.scsi_xri_cnt = 0; 4654 4655 phba->sli4_hba.lpfc_scsi_psb_array = 4656 kzalloc((sizeof(struct lpfc_scsi_buf *) * 4657 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 4658 4659 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 4660 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4661 "2563 Failed to allocate memory for SCSI " 4662 "XRI management array of size %d.\n", 4663 phba->sli4_hba.scsi_xri_max); 4664 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4665 return -ENOMEM; 4666 } 4667 4668 for (i = 0; i < els_xri_cnt; i++) { 4669 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 4670 if (sglq_entry == NULL) { 4671 printk(KERN_ERR "%s: only allocated %d sgls of " 4672 "expected %d count. Unloading driver.\n", 4673 __func__, i, els_xri_cnt); 4674 goto out_free_mem; 4675 } 4676 4677 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba); 4678 if (sglq_entry->sli4_xritag == NO_XRI) { 4679 kfree(sglq_entry); 4680 printk(KERN_ERR "%s: failed to allocate XRI.\n" 4681 "Unloading driver.\n", __func__); 4682 goto out_free_mem; 4683 } 4684 sglq_entry->buff_type = GEN_BUFF_TYPE; 4685 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 4686 if (sglq_entry->virt == NULL) { 4687 kfree(sglq_entry); 4688 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 4689 "Unloading driver.\n", __func__); 4690 goto out_free_mem; 4691 } 4692 sglq_entry->sgl = sglq_entry->virt; 4693 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 4694 4695 /* The list order is used by later block SGL registraton */ 4696 spin_lock_irq(&phba->hbalock); 4697 sglq_entry->state = SGL_FREED; 4698 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 4699 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 4700 phba->sli4_hba.total_sglq_bufs++; 4701 spin_unlock_irq(&phba->hbalock); 4702 } 4703 return 0; 4704 4705out_free_mem: 4706 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4707 lpfc_free_sgl_list(phba); 4708 return -ENOMEM; 4709} 4710 4711/** 4712 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 4713 * @phba: pointer to lpfc hba data structure. 4714 * 4715 * This routine is invoked to post rpi header templates to the 4716 * HBA consistent with the SLI-4 interface spec. This routine 4717 * posts a PAGE_SIZE memory region to the port to hold up to 4718 * PAGE_SIZE modulo 64 rpi context headers. 4719 * No locks are held here because this is an initialization routine 4720 * called only from probe or lpfc_online when interrupts are not 4721 * enabled and the driver is reinitializing the device. 4722 * 4723 * Return codes 4724 * 0 - successful 4725 * -ENOMEM - No availble memory 4726 * -EIO - The mailbox failed to complete successfully. 4727 **/ 4728int 4729lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 4730{ 4731 int rc = 0; 4732 int longs; 4733 uint16_t rpi_count; 4734 struct lpfc_rpi_hdr *rpi_hdr; 4735 4736 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 4737 4738 /* 4739 * Provision an rpi bitmask range for discovery. The total count 4740 * is the difference between max and base + 1. 4741 */ 4742 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base + 4743 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4744 4745 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG; 4746 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long), 4747 GFP_KERNEL); 4748 if (!phba->sli4_hba.rpi_bmask) 4749 return -ENOMEM; 4750 4751 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 4752 if (!rpi_hdr) { 4753 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 4754 "0391 Error during rpi post operation\n"); 4755 lpfc_sli4_remove_rpis(phba); 4756 rc = -ENODEV; 4757 } 4758 4759 return rc; 4760} 4761 4762/** 4763 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 4764 * @phba: pointer to lpfc hba data structure. 4765 * 4766 * This routine is invoked to allocate a single 4KB memory region to 4767 * support rpis and stores them in the phba. This single region 4768 * provides support for up to 64 rpis. The region is used globally 4769 * by the device. 4770 * 4771 * Returns: 4772 * A valid rpi hdr on success. 4773 * A NULL pointer on any failure. 4774 **/ 4775struct lpfc_rpi_hdr * 4776lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 4777{ 4778 uint16_t rpi_limit, curr_rpi_range; 4779 struct lpfc_dmabuf *dmabuf; 4780 struct lpfc_rpi_hdr *rpi_hdr; 4781 4782 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 4783 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4784 4785 spin_lock_irq(&phba->hbalock); 4786 curr_rpi_range = phba->sli4_hba.next_rpi; 4787 spin_unlock_irq(&phba->hbalock); 4788 4789 /* 4790 * The port has a limited number of rpis. The increment here 4791 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 4792 * and to allow the full max_rpi range per port. 4793 */ 4794 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 4795 return NULL; 4796 4797 /* 4798 * First allocate the protocol header region for the port. The 4799 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 4800 */ 4801 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4802 if (!dmabuf) 4803 return NULL; 4804 4805 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4806 LPFC_HDR_TEMPLATE_SIZE, 4807 &dmabuf->phys, 4808 GFP_KERNEL); 4809 if (!dmabuf->virt) { 4810 rpi_hdr = NULL; 4811 goto err_free_dmabuf; 4812 } 4813 4814 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 4815 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 4816 rpi_hdr = NULL; 4817 goto err_free_coherent; 4818 } 4819 4820 /* Save the rpi header data for cleanup later. */ 4821 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 4822 if (!rpi_hdr) 4823 goto err_free_coherent; 4824 4825 rpi_hdr->dmabuf = dmabuf; 4826 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 4827 rpi_hdr->page_count = 1; 4828 spin_lock_irq(&phba->hbalock); 4829 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi; 4830 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 4831 4832 /* 4833 * The next_rpi stores the next module-64 rpi value to post 4834 * in any subsequent rpi memory region postings. 4835 */ 4836 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT; 4837 spin_unlock_irq(&phba->hbalock); 4838 return rpi_hdr; 4839 4840 err_free_coherent: 4841 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 4842 dmabuf->virt, dmabuf->phys); 4843 err_free_dmabuf: 4844 kfree(dmabuf); 4845 return NULL; 4846} 4847 4848/** 4849 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 4850 * @phba: pointer to lpfc hba data structure. 4851 * 4852 * This routine is invoked to remove all memory resources allocated 4853 * to support rpis. This routine presumes the caller has released all 4854 * rpis consumed by fabric or port logins and is prepared to have 4855 * the header pages removed. 4856 **/ 4857void 4858lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 4859{ 4860 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 4861 4862 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 4863 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 4864 list_del(&rpi_hdr->list); 4865 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 4866 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 4867 kfree(rpi_hdr->dmabuf); 4868 kfree(rpi_hdr); 4869 } 4870 4871 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4872 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask)); 4873} 4874 4875/** 4876 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 4877 * @pdev: pointer to pci device data structure. 4878 * 4879 * This routine is invoked to allocate the driver hba data structure for an 4880 * HBA device. If the allocation is successful, the phba reference to the 4881 * PCI device data structure is set. 4882 * 4883 * Return codes 4884 * pointer to @phba - successful 4885 * NULL - error 4886 **/ 4887static struct lpfc_hba * 4888lpfc_hba_alloc(struct pci_dev *pdev) 4889{ 4890 struct lpfc_hba *phba; 4891 4892 /* Allocate memory for HBA structure */ 4893 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 4894 if (!phba) { 4895 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 4896 return NULL; 4897 } 4898 4899 /* Set reference to PCI device in HBA structure */ 4900 phba->pcidev = pdev; 4901 4902 /* Assign an unused board number */ 4903 phba->brd_no = lpfc_get_instance(); 4904 if (phba->brd_no < 0) { 4905 kfree(phba); 4906 return NULL; 4907 } 4908 4909 spin_lock_init(&phba->ct_ev_lock); 4910 INIT_LIST_HEAD(&phba->ct_ev_waiters); 4911 4912 return phba; 4913} 4914 4915/** 4916 * lpfc_hba_free - Free driver hba data structure with a device. 4917 * @phba: pointer to lpfc hba data structure. 4918 * 4919 * This routine is invoked to free the driver hba data structure with an 4920 * HBA device. 4921 **/ 4922static void 4923lpfc_hba_free(struct lpfc_hba *phba) 4924{ 4925 /* Release the driver assigned board number */ 4926 idr_remove(&lpfc_hba_index, phba->brd_no); 4927 4928 kfree(phba); 4929 return; 4930} 4931 4932/** 4933 * lpfc_create_shost - Create hba physical port with associated scsi host. 4934 * @phba: pointer to lpfc hba data structure. 4935 * 4936 * This routine is invoked to create HBA physical port and associate a SCSI 4937 * host with it. 4938 * 4939 * Return codes 4940 * 0 - successful 4941 * other values - error 4942 **/ 4943static int 4944lpfc_create_shost(struct lpfc_hba *phba) 4945{ 4946 struct lpfc_vport *vport; 4947 struct Scsi_Host *shost; 4948 4949 /* Initialize HBA FC structure */ 4950 phba->fc_edtov = FF_DEF_EDTOV; 4951 phba->fc_ratov = FF_DEF_RATOV; 4952 phba->fc_altov = FF_DEF_ALTOV; 4953 phba->fc_arbtov = FF_DEF_ARBTOV; 4954 4955 atomic_set(&phba->sdev_cnt, 0); 4956 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 4957 if (!vport) 4958 return -ENODEV; 4959 4960 shost = lpfc_shost_from_vport(vport); 4961 phba->pport = vport; 4962 lpfc_debugfs_initialize(vport); 4963 /* Put reference to SCSI host to driver's device private data */ 4964 pci_set_drvdata(phba->pcidev, shost); 4965 4966 return 0; 4967} 4968 4969/** 4970 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 4971 * @phba: pointer to lpfc hba data structure. 4972 * 4973 * This routine is invoked to destroy HBA physical port and the associated 4974 * SCSI host. 4975 **/ 4976static void 4977lpfc_destroy_shost(struct lpfc_hba *phba) 4978{ 4979 struct lpfc_vport *vport = phba->pport; 4980 4981 /* Destroy physical port that associated with the SCSI host */ 4982 destroy_port(vport); 4983 4984 return; 4985} 4986 4987/** 4988 * lpfc_setup_bg - Setup Block guard structures and debug areas. 4989 * @phba: pointer to lpfc hba data structure. 4990 * @shost: the shost to be used to detect Block guard settings. 4991 * 4992 * This routine sets up the local Block guard protocol settings for @shost. 4993 * This routine also allocates memory for debugging bg buffers. 4994 **/ 4995static void 4996lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 4997{ 4998 int pagecnt = 10; 4999 if (lpfc_prot_mask && lpfc_prot_guard) { 5000 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5001 "1478 Registering BlockGuard with the " 5002 "SCSI layer\n"); 5003 scsi_host_set_prot(shost, lpfc_prot_mask); 5004 scsi_host_set_guard(shost, lpfc_prot_guard); 5005 } 5006 if (!_dump_buf_data) { 5007 while (pagecnt) { 5008 spin_lock_init(&_dump_buf_lock); 5009 _dump_buf_data = 5010 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5011 if (_dump_buf_data) { 5012 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5013 "9043 BLKGRD: allocated %d pages for " 5014 "_dump_buf_data at 0x%p\n", 5015 (1 << pagecnt), _dump_buf_data); 5016 _dump_buf_data_order = pagecnt; 5017 memset(_dump_buf_data, 0, 5018 ((1 << PAGE_SHIFT) << pagecnt)); 5019 break; 5020 } else 5021 --pagecnt; 5022 } 5023 if (!_dump_buf_data_order) 5024 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5025 "9044 BLKGRD: ERROR unable to allocate " 5026 "memory for hexdump\n"); 5027 } else 5028 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5029 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 5030 "\n", _dump_buf_data); 5031 if (!_dump_buf_dif) { 5032 while (pagecnt) { 5033 _dump_buf_dif = 5034 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5035 if (_dump_buf_dif) { 5036 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5037 "9046 BLKGRD: allocated %d pages for " 5038 "_dump_buf_dif at 0x%p\n", 5039 (1 << pagecnt), _dump_buf_dif); 5040 _dump_buf_dif_order = pagecnt; 5041 memset(_dump_buf_dif, 0, 5042 ((1 << PAGE_SHIFT) << pagecnt)); 5043 break; 5044 } else 5045 --pagecnt; 5046 } 5047 if (!_dump_buf_dif_order) 5048 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5049 "9047 BLKGRD: ERROR unable to allocate " 5050 "memory for hexdump\n"); 5051 } else 5052 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5053 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 5054 _dump_buf_dif); 5055} 5056 5057/** 5058 * lpfc_post_init_setup - Perform necessary device post initialization setup. 5059 * @phba: pointer to lpfc hba data structure. 5060 * 5061 * This routine is invoked to perform all the necessary post initialization 5062 * setup for the device. 5063 **/ 5064static void 5065lpfc_post_init_setup(struct lpfc_hba *phba) 5066{ 5067 struct Scsi_Host *shost; 5068 struct lpfc_adapter_event_header adapter_event; 5069 5070 /* Get the default values for Model Name and Description */ 5071 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5072 5073 /* 5074 * hba setup may have changed the hba_queue_depth so we need to 5075 * adjust the value of can_queue. 5076 */ 5077 shost = pci_get_drvdata(phba->pcidev); 5078 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5079 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5080 lpfc_setup_bg(phba, shost); 5081 5082 lpfc_host_attrib_init(shost); 5083 5084 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5085 spin_lock_irq(shost->host_lock); 5086 lpfc_poll_start_timer(phba); 5087 spin_unlock_irq(shost->host_lock); 5088 } 5089 5090 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5091 "0428 Perform SCSI scan\n"); 5092 /* Send board arrival event to upper layer */ 5093 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5094 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5095 fc_host_post_vendor_event(shost, fc_get_event_number(), 5096 sizeof(adapter_event), 5097 (char *) &adapter_event, 5098 LPFC_NL_VENDOR_ID); 5099 return; 5100} 5101 5102/** 5103 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5104 * @phba: pointer to lpfc hba data structure. 5105 * 5106 * This routine is invoked to set up the PCI device memory space for device 5107 * with SLI-3 interface spec. 5108 * 5109 * Return codes 5110 * 0 - successful 5111 * other values - error 5112 **/ 5113static int 5114lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5115{ 5116 struct pci_dev *pdev; 5117 unsigned long bar0map_len, bar2map_len; 5118 int i, hbq_count; 5119 void *ptr; 5120 int error = -ENODEV; 5121 5122 /* Obtain PCI device reference */ 5123 if (!phba->pcidev) 5124 return error; 5125 else 5126 pdev = phba->pcidev; 5127 5128 /* Set the device DMA mask size */ 5129 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5130 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5131 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5132 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5133 return error; 5134 } 5135 } 5136 5137 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5138 * required by each mapping. 5139 */ 5140 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5141 bar0map_len = pci_resource_len(pdev, 0); 5142 5143 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5144 bar2map_len = pci_resource_len(pdev, 2); 5145 5146 /* Map HBA SLIM to a kernel virtual address. */ 5147 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5148 if (!phba->slim_memmap_p) { 5149 dev_printk(KERN_ERR, &pdev->dev, 5150 "ioremap failed for SLIM memory.\n"); 5151 goto out; 5152 } 5153 5154 /* Map HBA Control Registers to a kernel virtual address. */ 5155 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5156 if (!phba->ctrl_regs_memmap_p) { 5157 dev_printk(KERN_ERR, &pdev->dev, 5158 "ioremap failed for HBA control registers.\n"); 5159 goto out_iounmap_slim; 5160 } 5161 5162 /* Allocate memory for SLI-2 structures */ 5163 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5164 SLI2_SLIM_SIZE, 5165 &phba->slim2p.phys, 5166 GFP_KERNEL); 5167 if (!phba->slim2p.virt) 5168 goto out_iounmap; 5169 5170 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5171 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5172 phba->mbox_ext = (phba->slim2p.virt + 5173 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5174 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5175 phba->IOCBs = (phba->slim2p.virt + 5176 offsetof(struct lpfc_sli2_slim, IOCBs)); 5177 5178 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5179 lpfc_sli_hbq_size(), 5180 &phba->hbqslimp.phys, 5181 GFP_KERNEL); 5182 if (!phba->hbqslimp.virt) 5183 goto out_free_slim; 5184 5185 hbq_count = lpfc_sli_hbq_count(); 5186 ptr = phba->hbqslimp.virt; 5187 for (i = 0; i < hbq_count; ++i) { 5188 phba->hbqs[i].hbq_virt = ptr; 5189 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5190 ptr += (lpfc_hbq_defs[i]->entry_count * 5191 sizeof(struct lpfc_hbq_entry)); 5192 } 5193 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5194 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5195 5196 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5197 5198 INIT_LIST_HEAD(&phba->rb_pend_list); 5199 5200 phba->MBslimaddr = phba->slim_memmap_p; 5201 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 5202 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 5203 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 5204 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 5205 5206 return 0; 5207 5208out_free_slim: 5209 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5210 phba->slim2p.virt, phba->slim2p.phys); 5211out_iounmap: 5212 iounmap(phba->ctrl_regs_memmap_p); 5213out_iounmap_slim: 5214 iounmap(phba->slim_memmap_p); 5215out: 5216 return error; 5217} 5218 5219/** 5220 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 5221 * @phba: pointer to lpfc hba data structure. 5222 * 5223 * This routine is invoked to unset the PCI device memory space for device 5224 * with SLI-3 interface spec. 5225 **/ 5226static void 5227lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 5228{ 5229 struct pci_dev *pdev; 5230 5231 /* Obtain PCI device reference */ 5232 if (!phba->pcidev) 5233 return; 5234 else 5235 pdev = phba->pcidev; 5236 5237 /* Free coherent DMA memory allocated */ 5238 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 5239 phba->hbqslimp.virt, phba->hbqslimp.phys); 5240 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5241 phba->slim2p.virt, phba->slim2p.phys); 5242 5243 /* I/O memory unmap */ 5244 iounmap(phba->ctrl_regs_memmap_p); 5245 iounmap(phba->slim_memmap_p); 5246 5247 return; 5248} 5249 5250/** 5251 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 5252 * @phba: pointer to lpfc hba data structure. 5253 * 5254 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 5255 * done and check status. 5256 * 5257 * Return 0 if successful, otherwise -ENODEV. 5258 **/ 5259int 5260lpfc_sli4_post_status_check(struct lpfc_hba *phba) 5261{ 5262 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg; 5263 int i, port_error = -ENODEV; 5264 5265 if (!phba->sli4_hba.STAregaddr) 5266 return -ENODEV; 5267 5268 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 5269 for (i = 0; i < 3000; i++) { 5270 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr); 5271 /* Encounter fatal POST error, break out */ 5272 if (bf_get(lpfc_hst_state_perr, &sta_reg)) { 5273 port_error = -ENODEV; 5274 break; 5275 } 5276 if (LPFC_POST_STAGE_ARMFW_READY == 5277 bf_get(lpfc_hst_state_port_status, &sta_reg)) { 5278 port_error = 0; 5279 break; 5280 } 5281 msleep(10); 5282 } 5283 5284 if (port_error) 5285 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5286 "1408 Failure HBA POST Status: sta_reg=0x%x, " 5287 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, " 5288 "dl=x%x, pstatus=x%x\n", sta_reg.word0, 5289 bf_get(lpfc_hst_state_perr, &sta_reg), 5290 bf_get(lpfc_hst_state_sfi, &sta_reg), 5291 bf_get(lpfc_hst_state_nip, &sta_reg), 5292 bf_get(lpfc_hst_state_ipc, &sta_reg), 5293 bf_get(lpfc_hst_state_xrom, &sta_reg), 5294 bf_get(lpfc_hst_state_dl, &sta_reg), 5295 bf_get(lpfc_hst_state_port_status, &sta_reg)); 5296 5297 /* Log device information */ 5298 phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr); 5299 if (bf_get(lpfc_sli_intf_valid, 5300 &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) { 5301 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5302 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, " 5303 "IFType=0x%x, SLIHint_1=0x%x, SLIHint_2=0x%x, " 5304 "FT=0x%x\n", 5305 bf_get(lpfc_sli_intf_sli_family, 5306 &phba->sli4_hba.sli_intf), 5307 bf_get(lpfc_sli_intf_slirev, 5308 &phba->sli4_hba.sli_intf), 5309 bf_get(lpfc_sli_intf_if_type, 5310 &phba->sli4_hba.sli_intf), 5311 bf_get(lpfc_sli_intf_sli_hint1, 5312 &phba->sli4_hba.sli_intf), 5313 bf_get(lpfc_sli_intf_sli_hint2, 5314 &phba->sli4_hba.sli_intf), 5315 bf_get(lpfc_sli_intf_func_type, 5316 &phba->sli4_hba.sli_intf)); 5317 } 5318 5319 phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr); 5320 phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr); 5321 /* With uncoverable error, log the error message and return error */ 5322 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr); 5323 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr); 5324 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 5325 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 5326 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5327 "1422 HBA Unrecoverable error: " 5328 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " 5329 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n", 5330 uerrlo_reg.word0, uerrhi_reg.word0, 5331 phba->sli4_hba.ue_mask_lo, 5332 phba->sli4_hba.ue_mask_hi); 5333 return -ENODEV; 5334 } 5335 5336 return port_error; 5337} 5338 5339/** 5340 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 5341 * @phba: pointer to lpfc hba data structure. 5342 * 5343 * This routine is invoked to set up SLI4 BAR0 PCI config space register 5344 * memory map. 5345 **/ 5346static void 5347lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba) 5348{ 5349 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 5350 LPFC_UERR_STATUS_LO; 5351 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 5352 LPFC_UERR_STATUS_HI; 5353 phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 5354 LPFC_UE_MASK_LO; 5355 phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 5356 LPFC_UE_MASK_HI; 5357 phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p + 5358 LPFC_SLI_INTF; 5359} 5360 5361/** 5362 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 5363 * @phba: pointer to lpfc hba data structure. 5364 * 5365 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 5366 * memory map. 5367 **/ 5368static void 5369lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 5370{ 5371 5372 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5373 LPFC_HST_STATE; 5374 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5375 LPFC_HST_ISR0; 5376 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5377 LPFC_HST_IMR0; 5378 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5379 LPFC_HST_ISCR0; 5380 return; 5381} 5382 5383/** 5384 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 5385 * @phba: pointer to lpfc hba data structure. 5386 * @vf: virtual function number 5387 * 5388 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 5389 * based on the given viftual function number, @vf. 5390 * 5391 * Return 0 if successful, otherwise -ENODEV. 5392 **/ 5393static int 5394lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 5395{ 5396 if (vf > LPFC_VIR_FUNC_MAX) 5397 return -ENODEV; 5398 5399 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5400 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 5401 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5402 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 5403 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5404 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 5405 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5406 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 5407 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5408 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 5409 return 0; 5410} 5411 5412/** 5413 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 5414 * @phba: pointer to lpfc hba data structure. 5415 * 5416 * This routine is invoked to create the bootstrap mailbox 5417 * region consistent with the SLI-4 interface spec. This 5418 * routine allocates all memory necessary to communicate 5419 * mailbox commands to the port and sets up all alignment 5420 * needs. No locks are expected to be held when calling 5421 * this routine. 5422 * 5423 * Return codes 5424 * 0 - successful 5425 * -ENOMEM - could not allocated memory. 5426 **/ 5427static int 5428lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 5429{ 5430 uint32_t bmbx_size; 5431 struct lpfc_dmabuf *dmabuf; 5432 struct dma_address *dma_address; 5433 uint32_t pa_addr; 5434 uint64_t phys_addr; 5435 5436 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5437 if (!dmabuf) 5438 return -ENOMEM; 5439 5440 /* 5441 * The bootstrap mailbox region is comprised of 2 parts 5442 * plus an alignment restriction of 16 bytes. 5443 */ 5444 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 5445 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5446 bmbx_size, 5447 &dmabuf->phys, 5448 GFP_KERNEL); 5449 if (!dmabuf->virt) { 5450 kfree(dmabuf); 5451 return -ENOMEM; 5452 } 5453 memset(dmabuf->virt, 0, bmbx_size); 5454 5455 /* 5456 * Initialize the bootstrap mailbox pointers now so that the register 5457 * operations are simple later. The mailbox dma address is required 5458 * to be 16-byte aligned. Also align the virtual memory as each 5459 * maibox is copied into the bmbx mailbox region before issuing the 5460 * command to the port. 5461 */ 5462 phba->sli4_hba.bmbx.dmabuf = dmabuf; 5463 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 5464 5465 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 5466 LPFC_ALIGN_16_BYTE); 5467 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 5468 LPFC_ALIGN_16_BYTE); 5469 5470 /* 5471 * Set the high and low physical addresses now. The SLI4 alignment 5472 * requirement is 16 bytes and the mailbox is posted to the port 5473 * as two 30-bit addresses. The other data is a bit marking whether 5474 * the 30-bit address is the high or low address. 5475 * Upcast bmbx aphys to 64bits so shift instruction compiles 5476 * clean on 32 bit machines. 5477 */ 5478 dma_address = &phba->sli4_hba.bmbx.dma_address; 5479 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 5480 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 5481 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 5482 LPFC_BMBX_BIT1_ADDR_HI); 5483 5484 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 5485 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 5486 LPFC_BMBX_BIT1_ADDR_LO); 5487 return 0; 5488} 5489 5490/** 5491 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 5492 * @phba: pointer to lpfc hba data structure. 5493 * 5494 * This routine is invoked to teardown the bootstrap mailbox 5495 * region and release all host resources. This routine requires 5496 * the caller to ensure all mailbox commands recovered, no 5497 * additional mailbox comands are sent, and interrupts are disabled 5498 * before calling this routine. 5499 * 5500 **/ 5501static void 5502lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 5503{ 5504 dma_free_coherent(&phba->pcidev->dev, 5505 phba->sli4_hba.bmbx.bmbx_size, 5506 phba->sli4_hba.bmbx.dmabuf->virt, 5507 phba->sli4_hba.bmbx.dmabuf->phys); 5508 5509 kfree(phba->sli4_hba.bmbx.dmabuf); 5510 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 5511} 5512 5513/** 5514 * lpfc_sli4_read_config - Get the config parameters. 5515 * @phba: pointer to lpfc hba data structure. 5516 * 5517 * This routine is invoked to read the configuration parameters from the HBA. 5518 * The configuration parameters are used to set the base and maximum values 5519 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 5520 * allocation for the port. 5521 * 5522 * Return codes 5523 * 0 - successful 5524 * -ENOMEM - No availble memory 5525 * -EIO - The mailbox failed to complete successfully. 5526 **/ 5527static int 5528lpfc_sli4_read_config(struct lpfc_hba *phba) 5529{ 5530 LPFC_MBOXQ_t *pmb; 5531 struct lpfc_mbx_read_config *rd_config; 5532 uint32_t rc = 0; 5533 5534 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5535 if (!pmb) { 5536 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5537 "2011 Unable to allocate memory for issuing " 5538 "SLI_CONFIG_SPECIAL mailbox command\n"); 5539 return -ENOMEM; 5540 } 5541 5542 lpfc_read_config(phba, pmb); 5543 5544 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 5545 if (rc != MBX_SUCCESS) { 5546 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5547 "2012 Mailbox failed , mbxCmd x%x " 5548 "READ_CONFIG, mbxStatus x%x\n", 5549 bf_get(lpfc_mqe_command, &pmb->u.mqe), 5550 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 5551 rc = -EIO; 5552 } else { 5553 rd_config = &pmb->u.mqe.un.rd_config; 5554 phba->sli4_hba.max_cfg_param.max_xri = 5555 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 5556 phba->sli4_hba.max_cfg_param.xri_base = 5557 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 5558 phba->sli4_hba.max_cfg_param.max_vpi = 5559 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 5560 phba->sli4_hba.max_cfg_param.vpi_base = 5561 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 5562 phba->sli4_hba.max_cfg_param.max_rpi = 5563 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 5564 phba->sli4_hba.max_cfg_param.rpi_base = 5565 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 5566 phba->sli4_hba.max_cfg_param.max_vfi = 5567 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 5568 phba->sli4_hba.max_cfg_param.vfi_base = 5569 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 5570 phba->sli4_hba.max_cfg_param.max_fcfi = 5571 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 5572 phba->sli4_hba.max_cfg_param.fcfi_base = 5573 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config); 5574 phba->sli4_hba.max_cfg_param.max_eq = 5575 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 5576 phba->sli4_hba.max_cfg_param.max_rq = 5577 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 5578 phba->sli4_hba.max_cfg_param.max_wq = 5579 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 5580 phba->sli4_hba.max_cfg_param.max_cq = 5581 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 5582 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 5583 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 5584 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 5585 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 5586 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 5587 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 5588 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 5589 phba->max_vports = phba->max_vpi; 5590 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5591 "2003 cfg params XRI(B:%d M:%d), " 5592 "VPI(B:%d M:%d) " 5593 "VFI(B:%d M:%d) " 5594 "RPI(B:%d M:%d) " 5595 "FCFI(B:%d M:%d)\n", 5596 phba->sli4_hba.max_cfg_param.xri_base, 5597 phba->sli4_hba.max_cfg_param.max_xri, 5598 phba->sli4_hba.max_cfg_param.vpi_base, 5599 phba->sli4_hba.max_cfg_param.max_vpi, 5600 phba->sli4_hba.max_cfg_param.vfi_base, 5601 phba->sli4_hba.max_cfg_param.max_vfi, 5602 phba->sli4_hba.max_cfg_param.rpi_base, 5603 phba->sli4_hba.max_cfg_param.max_rpi, 5604 phba->sli4_hba.max_cfg_param.fcfi_base, 5605 phba->sli4_hba.max_cfg_param.max_fcfi); 5606 } 5607 mempool_free(pmb, phba->mbox_mem_pool); 5608 5609 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 5610 if (phba->cfg_hba_queue_depth > 5611 (phba->sli4_hba.max_cfg_param.max_xri - 5612 lpfc_sli4_get_els_iocb_cnt(phba))) 5613 phba->cfg_hba_queue_depth = 5614 phba->sli4_hba.max_cfg_param.max_xri - 5615 lpfc_sli4_get_els_iocb_cnt(phba); 5616 return rc; 5617} 5618 5619/** 5620 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order. 5621 * @phba: pointer to lpfc hba data structure. 5622 * 5623 * This routine is invoked to setup the host-side endian order to the 5624 * HBA consistent with the SLI-4 interface spec. 5625 * 5626 * Return codes 5627 * 0 - successful 5628 * -ENOMEM - No availble memory 5629 * -EIO - The mailbox failed to complete successfully. 5630 **/ 5631static int 5632lpfc_setup_endian_order(struct lpfc_hba *phba) 5633{ 5634 LPFC_MBOXQ_t *mboxq; 5635 uint32_t rc = 0; 5636 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 5637 HOST_ENDIAN_HIGH_WORD1}; 5638 5639 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5640 if (!mboxq) { 5641 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5642 "0492 Unable to allocate memory for issuing " 5643 "SLI_CONFIG_SPECIAL mailbox command\n"); 5644 return -ENOMEM; 5645 } 5646 5647 /* 5648 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two 5649 * words to contain special data values and no other data. 5650 */ 5651 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 5652 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 5653 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5654 if (rc != MBX_SUCCESS) { 5655 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5656 "0493 SLI_CONFIG_SPECIAL mailbox failed with " 5657 "status x%x\n", 5658 rc); 5659 rc = -EIO; 5660 } 5661 5662 mempool_free(mboxq, phba->mbox_mem_pool); 5663 return rc; 5664} 5665 5666/** 5667 * lpfc_sli4_queue_create - Create all the SLI4 queues 5668 * @phba: pointer to lpfc hba data structure. 5669 * 5670 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 5671 * operation. For each SLI4 queue type, the parameters such as queue entry 5672 * count (queue depth) shall be taken from the module parameter. For now, 5673 * we just use some constant number as place holder. 5674 * 5675 * Return codes 5676 * 0 - successful 5677 * -ENOMEM - No availble memory 5678 * -EIO - The mailbox failed to complete successfully. 5679 **/ 5680static int 5681lpfc_sli4_queue_create(struct lpfc_hba *phba) 5682{ 5683 struct lpfc_queue *qdesc; 5684 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5685 int cfg_fcp_wq_count; 5686 int cfg_fcp_eq_count; 5687 5688 /* 5689 * Sanity check for confiugred queue parameters against the run-time 5690 * device parameters 5691 */ 5692 5693 /* Sanity check on FCP fast-path WQ parameters */ 5694 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 5695 if (cfg_fcp_wq_count > 5696 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 5697 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 5698 LPFC_SP_WQN_DEF; 5699 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 5700 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5701 "2581 Not enough WQs (%d) from " 5702 "the pci function for supporting " 5703 "FCP WQs (%d)\n", 5704 phba->sli4_hba.max_cfg_param.max_wq, 5705 phba->cfg_fcp_wq_count); 5706 goto out_error; 5707 } 5708 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5709 "2582 Not enough WQs (%d) from the pci " 5710 "function for supporting the requested " 5711 "FCP WQs (%d), the actual FCP WQs can " 5712 "be supported: %d\n", 5713 phba->sli4_hba.max_cfg_param.max_wq, 5714 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 5715 } 5716 /* The actual number of FCP work queues adopted */ 5717 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 5718 5719 /* Sanity check on FCP fast-path EQ parameters */ 5720 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 5721 if (cfg_fcp_eq_count > 5722 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 5723 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 5724 LPFC_SP_EQN_DEF; 5725 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 5726 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5727 "2574 Not enough EQs (%d) from the " 5728 "pci function for supporting FCP " 5729 "EQs (%d)\n", 5730 phba->sli4_hba.max_cfg_param.max_eq, 5731 phba->cfg_fcp_eq_count); 5732 goto out_error; 5733 } 5734 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5735 "2575 Not enough EQs (%d) from the pci " 5736 "function for supporting the requested " 5737 "FCP EQs (%d), the actual FCP EQs can " 5738 "be supported: %d\n", 5739 phba->sli4_hba.max_cfg_param.max_eq, 5740 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 5741 } 5742 /* It does not make sense to have more EQs than WQs */ 5743 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 5744 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5745 "2593 The FCP EQ count(%d) cannot be greater " 5746 "than the FCP WQ count(%d), limiting the " 5747 "FCP EQ count to %d\n", cfg_fcp_eq_count, 5748 phba->cfg_fcp_wq_count, 5749 phba->cfg_fcp_wq_count); 5750 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 5751 } 5752 /* The actual number of FCP event queues adopted */ 5753 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 5754 /* The overall number of event queues used */ 5755 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 5756 5757 /* 5758 * Create Event Queues (EQs) 5759 */ 5760 5761 /* Get EQ depth from module parameter, fake the default for now */ 5762 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 5763 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 5764 5765 /* Create slow path event queue */ 5766 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5767 phba->sli4_hba.eq_ecount); 5768 if (!qdesc) { 5769 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5770 "0496 Failed allocate slow-path EQ\n"); 5771 goto out_error; 5772 } 5773 phba->sli4_hba.sp_eq = qdesc; 5774 5775 /* Create fast-path FCP Event Queue(s) */ 5776 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 5777 phba->cfg_fcp_eq_count), GFP_KERNEL); 5778 if (!phba->sli4_hba.fp_eq) { 5779 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5780 "2576 Failed allocate memory for fast-path " 5781 "EQ record array\n"); 5782 goto out_free_sp_eq; 5783 } 5784 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5785 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5786 phba->sli4_hba.eq_ecount); 5787 if (!qdesc) { 5788 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5789 "0497 Failed allocate fast-path EQ\n"); 5790 goto out_free_fp_eq; 5791 } 5792 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 5793 } 5794 5795 /* 5796 * Create Complete Queues (CQs) 5797 */ 5798 5799 /* Get CQ depth from module parameter, fake the default for now */ 5800 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 5801 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 5802 5803 /* Create slow-path Mailbox Command Complete Queue */ 5804 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5805 phba->sli4_hba.cq_ecount); 5806 if (!qdesc) { 5807 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5808 "0500 Failed allocate slow-path mailbox CQ\n"); 5809 goto out_free_fp_eq; 5810 } 5811 phba->sli4_hba.mbx_cq = qdesc; 5812 5813 /* Create slow-path ELS Complete Queue */ 5814 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5815 phba->sli4_hba.cq_ecount); 5816 if (!qdesc) { 5817 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5818 "0501 Failed allocate slow-path ELS CQ\n"); 5819 goto out_free_mbx_cq; 5820 } 5821 phba->sli4_hba.els_cq = qdesc; 5822 5823 5824 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ 5825 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 5826 phba->cfg_fcp_eq_count), GFP_KERNEL); 5827 if (!phba->sli4_hba.fcp_cq) { 5828 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5829 "2577 Failed allocate memory for fast-path " 5830 "CQ record array\n"); 5831 goto out_free_els_cq; 5832 } 5833 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5834 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5835 phba->sli4_hba.cq_ecount); 5836 if (!qdesc) { 5837 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5838 "0499 Failed allocate fast-path FCP " 5839 "CQ (%d)\n", fcp_cqidx); 5840 goto out_free_fcp_cq; 5841 } 5842 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 5843 } 5844 5845 /* Create Mailbox Command Queue */ 5846 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 5847 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 5848 5849 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 5850 phba->sli4_hba.mq_ecount); 5851 if (!qdesc) { 5852 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5853 "0505 Failed allocate slow-path MQ\n"); 5854 goto out_free_fcp_cq; 5855 } 5856 phba->sli4_hba.mbx_wq = qdesc; 5857 5858 /* 5859 * Create all the Work Queues (WQs) 5860 */ 5861 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 5862 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 5863 5864 /* Create slow-path ELS Work Queue */ 5865 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5866 phba->sli4_hba.wq_ecount); 5867 if (!qdesc) { 5868 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5869 "0504 Failed allocate slow-path ELS WQ\n"); 5870 goto out_free_mbx_wq; 5871 } 5872 phba->sli4_hba.els_wq = qdesc; 5873 5874 /* Create fast-path FCP Work Queue(s) */ 5875 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 5876 phba->cfg_fcp_wq_count), GFP_KERNEL); 5877 if (!phba->sli4_hba.fcp_wq) { 5878 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5879 "2578 Failed allocate memory for fast-path " 5880 "WQ record array\n"); 5881 goto out_free_els_wq; 5882 } 5883 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5884 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5885 phba->sli4_hba.wq_ecount); 5886 if (!qdesc) { 5887 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5888 "0503 Failed allocate fast-path FCP " 5889 "WQ (%d)\n", fcp_wqidx); 5890 goto out_free_fcp_wq; 5891 } 5892 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 5893 } 5894 5895 /* 5896 * Create Receive Queue (RQ) 5897 */ 5898 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 5899 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 5900 5901 /* Create Receive Queue for header */ 5902 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5903 phba->sli4_hba.rq_ecount); 5904 if (!qdesc) { 5905 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5906 "0506 Failed allocate receive HRQ\n"); 5907 goto out_free_fcp_wq; 5908 } 5909 phba->sli4_hba.hdr_rq = qdesc; 5910 5911 /* Create Receive Queue for data */ 5912 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5913 phba->sli4_hba.rq_ecount); 5914 if (!qdesc) { 5915 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5916 "0507 Failed allocate receive DRQ\n"); 5917 goto out_free_hdr_rq; 5918 } 5919 phba->sli4_hba.dat_rq = qdesc; 5920 5921 return 0; 5922 5923out_free_hdr_rq: 5924 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5925 phba->sli4_hba.hdr_rq = NULL; 5926out_free_fcp_wq: 5927 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 5928 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 5929 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 5930 } 5931 kfree(phba->sli4_hba.fcp_wq); 5932out_free_els_wq: 5933 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5934 phba->sli4_hba.els_wq = NULL; 5935out_free_mbx_wq: 5936 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5937 phba->sli4_hba.mbx_wq = NULL; 5938out_free_fcp_cq: 5939 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 5940 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 5941 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 5942 } 5943 kfree(phba->sli4_hba.fcp_cq); 5944out_free_els_cq: 5945 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5946 phba->sli4_hba.els_cq = NULL; 5947out_free_mbx_cq: 5948 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5949 phba->sli4_hba.mbx_cq = NULL; 5950out_free_fp_eq: 5951 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 5952 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 5953 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 5954 } 5955 kfree(phba->sli4_hba.fp_eq); 5956out_free_sp_eq: 5957 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5958 phba->sli4_hba.sp_eq = NULL; 5959out_error: 5960 return -ENOMEM; 5961} 5962 5963/** 5964 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 5965 * @phba: pointer to lpfc hba data structure. 5966 * 5967 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 5968 * operation. 5969 * 5970 * Return codes 5971 * 0 - successful 5972 * -ENOMEM - No availble memory 5973 * -EIO - The mailbox failed to complete successfully. 5974 **/ 5975static void 5976lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 5977{ 5978 int fcp_qidx; 5979 5980 /* Release mailbox command work queue */ 5981 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5982 phba->sli4_hba.mbx_wq = NULL; 5983 5984 /* Release ELS work queue */ 5985 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5986 phba->sli4_hba.els_wq = NULL; 5987 5988 /* Release FCP work queue */ 5989 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5990 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 5991 kfree(phba->sli4_hba.fcp_wq); 5992 phba->sli4_hba.fcp_wq = NULL; 5993 5994 /* Release unsolicited receive queue */ 5995 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5996 phba->sli4_hba.hdr_rq = NULL; 5997 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 5998 phba->sli4_hba.dat_rq = NULL; 5999 6000 /* Release ELS complete queue */ 6001 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6002 phba->sli4_hba.els_cq = NULL; 6003 6004 /* Release mailbox command complete queue */ 6005 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6006 phba->sli4_hba.mbx_cq = NULL; 6007 6008 /* Release FCP response complete queue */ 6009 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6010 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 6011 kfree(phba->sli4_hba.fcp_cq); 6012 phba->sli4_hba.fcp_cq = NULL; 6013 6014 /* Release fast-path event queue */ 6015 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6016 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 6017 kfree(phba->sli4_hba.fp_eq); 6018 phba->sli4_hba.fp_eq = NULL; 6019 6020 /* Release slow-path event queue */ 6021 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6022 phba->sli4_hba.sp_eq = NULL; 6023 6024 return; 6025} 6026 6027/** 6028 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 6029 * @phba: pointer to lpfc hba data structure. 6030 * 6031 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 6032 * operation. 6033 * 6034 * Return codes 6035 * 0 - successful 6036 * -ENOMEM - No availble memory 6037 * -EIO - The mailbox failed to complete successfully. 6038 **/ 6039int 6040lpfc_sli4_queue_setup(struct lpfc_hba *phba) 6041{ 6042 int rc = -ENOMEM; 6043 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6044 int fcp_cq_index = 0; 6045 6046 /* 6047 * Set up Event Queues (EQs) 6048 */ 6049 6050 /* Set up slow-path event queue */ 6051 if (!phba->sli4_hba.sp_eq) { 6052 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6053 "0520 Slow-path EQ not allocated\n"); 6054 goto out_error; 6055 } 6056 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 6057 LPFC_SP_DEF_IMAX); 6058 if (rc) { 6059 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6060 "0521 Failed setup of slow-path EQ: " 6061 "rc = 0x%x\n", rc); 6062 goto out_error; 6063 } 6064 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6065 "2583 Slow-path EQ setup: queue-id=%d\n", 6066 phba->sli4_hba.sp_eq->queue_id); 6067 6068 /* Set up fast-path event queue */ 6069 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6070 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 6071 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6072 "0522 Fast-path EQ (%d) not " 6073 "allocated\n", fcp_eqidx); 6074 goto out_destroy_fp_eq; 6075 } 6076 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 6077 phba->cfg_fcp_imax); 6078 if (rc) { 6079 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6080 "0523 Failed setup of fast-path EQ " 6081 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 6082 goto out_destroy_fp_eq; 6083 } 6084 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6085 "2584 Fast-path EQ setup: " 6086 "queue[%d]-id=%d\n", fcp_eqidx, 6087 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 6088 } 6089 6090 /* 6091 * Set up Complete Queues (CQs) 6092 */ 6093 6094 /* Set up slow-path MBOX Complete Queue as the first CQ */ 6095 if (!phba->sli4_hba.mbx_cq) { 6096 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6097 "0528 Mailbox CQ not allocated\n"); 6098 goto out_destroy_fp_eq; 6099 } 6100 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 6101 LPFC_MCQ, LPFC_MBOX); 6102 if (rc) { 6103 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6104 "0529 Failed setup of slow-path mailbox CQ: " 6105 "rc = 0x%x\n", rc); 6106 goto out_destroy_fp_eq; 6107 } 6108 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6109 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 6110 phba->sli4_hba.mbx_cq->queue_id, 6111 phba->sli4_hba.sp_eq->queue_id); 6112 6113 /* Set up slow-path ELS Complete Queue */ 6114 if (!phba->sli4_hba.els_cq) { 6115 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6116 "0530 ELS CQ not allocated\n"); 6117 goto out_destroy_mbx_cq; 6118 } 6119 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 6120 LPFC_WCQ, LPFC_ELS); 6121 if (rc) { 6122 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6123 "0531 Failed setup of slow-path ELS CQ: " 6124 "rc = 0x%x\n", rc); 6125 goto out_destroy_mbx_cq; 6126 } 6127 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6128 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 6129 phba->sli4_hba.els_cq->queue_id, 6130 phba->sli4_hba.sp_eq->queue_id); 6131 6132 /* Set up fast-path FCP Response Complete Queue */ 6133 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 6134 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 6135 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6136 "0526 Fast-path FCP CQ (%d) not " 6137 "allocated\n", fcp_cqidx); 6138 goto out_destroy_fcp_cq; 6139 } 6140 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 6141 phba->sli4_hba.fp_eq[fcp_cqidx], 6142 LPFC_WCQ, LPFC_FCP); 6143 if (rc) { 6144 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6145 "0527 Failed setup of fast-path FCP " 6146 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 6147 goto out_destroy_fcp_cq; 6148 } 6149 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6150 "2588 FCP CQ setup: cq[%d]-id=%d, " 6151 "parent eq[%d]-id=%d\n", 6152 fcp_cqidx, 6153 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 6154 fcp_cqidx, 6155 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id); 6156 } 6157 6158 /* 6159 * Set up all the Work Queues (WQs) 6160 */ 6161 6162 /* Set up Mailbox Command Queue */ 6163 if (!phba->sli4_hba.mbx_wq) { 6164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6165 "0538 Slow-path MQ not allocated\n"); 6166 goto out_destroy_fcp_cq; 6167 } 6168 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 6169 phba->sli4_hba.mbx_cq, LPFC_MBOX); 6170 if (rc) { 6171 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6172 "0539 Failed setup of slow-path MQ: " 6173 "rc = 0x%x\n", rc); 6174 goto out_destroy_fcp_cq; 6175 } 6176 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6177 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 6178 phba->sli4_hba.mbx_wq->queue_id, 6179 phba->sli4_hba.mbx_cq->queue_id); 6180 6181 /* Set up slow-path ELS Work Queue */ 6182 if (!phba->sli4_hba.els_wq) { 6183 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6184 "0536 Slow-path ELS WQ not allocated\n"); 6185 goto out_destroy_mbx_wq; 6186 } 6187 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 6188 phba->sli4_hba.els_cq, LPFC_ELS); 6189 if (rc) { 6190 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6191 "0537 Failed setup of slow-path ELS WQ: " 6192 "rc = 0x%x\n", rc); 6193 goto out_destroy_mbx_wq; 6194 } 6195 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6196 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 6197 phba->sli4_hba.els_wq->queue_id, 6198 phba->sli4_hba.els_cq->queue_id); 6199 6200 /* Set up fast-path FCP Work Queue */ 6201 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6202 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 6203 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6204 "0534 Fast-path FCP WQ (%d) not " 6205 "allocated\n", fcp_wqidx); 6206 goto out_destroy_fcp_wq; 6207 } 6208 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 6209 phba->sli4_hba.fcp_cq[fcp_cq_index], 6210 LPFC_FCP); 6211 if (rc) { 6212 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6213 "0535 Failed setup of fast-path FCP " 6214 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 6215 goto out_destroy_fcp_wq; 6216 } 6217 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6218 "2591 FCP WQ setup: wq[%d]-id=%d, " 6219 "parent cq[%d]-id=%d\n", 6220 fcp_wqidx, 6221 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 6222 fcp_cq_index, 6223 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 6224 /* Round robin FCP Work Queue's Completion Queue assignment */ 6225 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count); 6226 } 6227 6228 /* 6229 * Create Receive Queue (RQ) 6230 */ 6231 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 6232 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6233 "0540 Receive Queue not allocated\n"); 6234 goto out_destroy_fcp_wq; 6235 } 6236 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 6237 phba->sli4_hba.els_cq, LPFC_USOL); 6238 if (rc) { 6239 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6240 "0541 Failed setup of Receive Queue: " 6241 "rc = 0x%x\n", rc); 6242 goto out_destroy_fcp_wq; 6243 } 6244 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6245 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 6246 "parent cq-id=%d\n", 6247 phba->sli4_hba.hdr_rq->queue_id, 6248 phba->sli4_hba.dat_rq->queue_id, 6249 phba->sli4_hba.els_cq->queue_id); 6250 return 0; 6251 6252out_destroy_fcp_wq: 6253 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 6254 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 6255 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6256out_destroy_mbx_wq: 6257 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6258out_destroy_fcp_cq: 6259 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 6260 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 6261 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6262out_destroy_mbx_cq: 6263 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6264out_destroy_fp_eq: 6265 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 6266 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 6267 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6268out_error: 6269 return rc; 6270} 6271 6272/** 6273 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 6274 * @phba: pointer to lpfc hba data structure. 6275 * 6276 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 6277 * operation. 6278 * 6279 * Return codes 6280 * 0 - successful 6281 * -ENOMEM - No availble memory 6282 * -EIO - The mailbox failed to complete successfully. 6283 **/ 6284void 6285lpfc_sli4_queue_unset(struct lpfc_hba *phba) 6286{ 6287 int fcp_qidx; 6288 6289 /* Unset mailbox command work queue */ 6290 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6291 /* Unset ELS work queue */ 6292 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6293 /* Unset unsolicited receive queue */ 6294 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 6295 /* Unset FCP work queue */ 6296 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6297 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 6298 /* Unset mailbox command complete queue */ 6299 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6300 /* Unset ELS complete queue */ 6301 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6302 /* Unset FCP response complete queue */ 6303 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6304 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 6305 /* Unset fast-path event queue */ 6306 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6307 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 6308 /* Unset slow-path event queue */ 6309 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6310} 6311 6312/** 6313 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 6314 * @phba: pointer to lpfc hba data structure. 6315 * 6316 * This routine is invoked to allocate and set up a pool of completion queue 6317 * events. The body of the completion queue event is a completion queue entry 6318 * CQE. For now, this pool is used for the interrupt service routine to queue 6319 * the following HBA completion queue events for the worker thread to process: 6320 * - Mailbox asynchronous events 6321 * - Receive queue completion unsolicited events 6322 * Later, this can be used for all the slow-path events. 6323 * 6324 * Return codes 6325 * 0 - successful 6326 * -ENOMEM - No availble memory 6327 **/ 6328static int 6329lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 6330{ 6331 struct lpfc_cq_event *cq_event; 6332 int i; 6333 6334 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 6335 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 6336 if (!cq_event) 6337 goto out_pool_create_fail; 6338 list_add_tail(&cq_event->list, 6339 &phba->sli4_hba.sp_cqe_event_pool); 6340 } 6341 return 0; 6342 6343out_pool_create_fail: 6344 lpfc_sli4_cq_event_pool_destroy(phba); 6345 return -ENOMEM; 6346} 6347 6348/** 6349 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 6350 * @phba: pointer to lpfc hba data structure. 6351 * 6352 * This routine is invoked to free the pool of completion queue events at 6353 * driver unload time. Note that, it is the responsibility of the driver 6354 * cleanup routine to free all the outstanding completion-queue events 6355 * allocated from this pool back into the pool before invoking this routine 6356 * to destroy the pool. 6357 **/ 6358static void 6359lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 6360{ 6361 struct lpfc_cq_event *cq_event, *next_cq_event; 6362 6363 list_for_each_entry_safe(cq_event, next_cq_event, 6364 &phba->sli4_hba.sp_cqe_event_pool, list) { 6365 list_del(&cq_event->list); 6366 kfree(cq_event); 6367 } 6368} 6369 6370/** 6371 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6372 * @phba: pointer to lpfc hba data structure. 6373 * 6374 * This routine is the lock free version of the API invoked to allocate a 6375 * completion-queue event from the free pool. 6376 * 6377 * Return: Pointer to the newly allocated completion-queue event if successful 6378 * NULL otherwise. 6379 **/ 6380struct lpfc_cq_event * 6381__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6382{ 6383 struct lpfc_cq_event *cq_event = NULL; 6384 6385 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 6386 struct lpfc_cq_event, list); 6387 return cq_event; 6388} 6389 6390/** 6391 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6392 * @phba: pointer to lpfc hba data structure. 6393 * 6394 * This routine is the lock version of the API invoked to allocate a 6395 * completion-queue event from the free pool. 6396 * 6397 * Return: Pointer to the newly allocated completion-queue event if successful 6398 * NULL otherwise. 6399 **/ 6400struct lpfc_cq_event * 6401lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6402{ 6403 struct lpfc_cq_event *cq_event; 6404 unsigned long iflags; 6405 6406 spin_lock_irqsave(&phba->hbalock, iflags); 6407 cq_event = __lpfc_sli4_cq_event_alloc(phba); 6408 spin_unlock_irqrestore(&phba->hbalock, iflags); 6409 return cq_event; 6410} 6411 6412/** 6413 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6414 * @phba: pointer to lpfc hba data structure. 6415 * @cq_event: pointer to the completion queue event to be freed. 6416 * 6417 * This routine is the lock free version of the API invoked to release a 6418 * completion-queue event back into the free pool. 6419 **/ 6420void 6421__lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6422 struct lpfc_cq_event *cq_event) 6423{ 6424 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 6425} 6426 6427/** 6428 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6429 * @phba: pointer to lpfc hba data structure. 6430 * @cq_event: pointer to the completion queue event to be freed. 6431 * 6432 * This routine is the lock version of the API invoked to release a 6433 * completion-queue event back into the free pool. 6434 **/ 6435void 6436lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6437 struct lpfc_cq_event *cq_event) 6438{ 6439 unsigned long iflags; 6440 spin_lock_irqsave(&phba->hbalock, iflags); 6441 __lpfc_sli4_cq_event_release(phba, cq_event); 6442 spin_unlock_irqrestore(&phba->hbalock, iflags); 6443} 6444 6445/** 6446 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 6447 * @phba: pointer to lpfc hba data structure. 6448 * 6449 * This routine is to free all the pending completion-queue events to the 6450 * back into the free pool for device reset. 6451 **/ 6452static void 6453lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 6454{ 6455 LIST_HEAD(cqelist); 6456 struct lpfc_cq_event *cqe; 6457 unsigned long iflags; 6458 6459 /* Retrieve all the pending WCQEs from pending WCQE lists */ 6460 spin_lock_irqsave(&phba->hbalock, iflags); 6461 /* Pending FCP XRI abort events */ 6462 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 6463 &cqelist); 6464 /* Pending ELS XRI abort events */ 6465 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 6466 &cqelist); 6467 /* Pending asynnc events */ 6468 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 6469 &cqelist); 6470 spin_unlock_irqrestore(&phba->hbalock, iflags); 6471 6472 while (!list_empty(&cqelist)) { 6473 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 6474 lpfc_sli4_cq_event_release(phba, cqe); 6475 } 6476} 6477 6478/** 6479 * lpfc_pci_function_reset - Reset pci function. 6480 * @phba: pointer to lpfc hba data structure. 6481 * 6482 * This routine is invoked to request a PCI function reset. It will destroys 6483 * all resources assigned to the PCI function which originates this request. 6484 * 6485 * Return codes 6486 * 0 - successful 6487 * -ENOMEM - No availble memory 6488 * -EIO - The mailbox failed to complete successfully. 6489 **/ 6490int 6491lpfc_pci_function_reset(struct lpfc_hba *phba) 6492{ 6493 LPFC_MBOXQ_t *mboxq; 6494 uint32_t rc = 0; 6495 uint32_t shdr_status, shdr_add_status; 6496 union lpfc_sli4_cfg_shdr *shdr; 6497 6498 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6499 if (!mboxq) { 6500 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6501 "0494 Unable to allocate memory for issuing " 6502 "SLI_FUNCTION_RESET mailbox command\n"); 6503 return -ENOMEM; 6504 } 6505 6506 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */ 6507 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6508 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 6509 LPFC_SLI4_MBX_EMBED); 6510 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6511 shdr = (union lpfc_sli4_cfg_shdr *) 6512 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6513 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6514 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6515 if (rc != MBX_TIMEOUT) 6516 mempool_free(mboxq, phba->mbox_mem_pool); 6517 if (shdr_status || shdr_add_status || rc) { 6518 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6519 "0495 SLI_FUNCTION_RESET mailbox failed with " 6520 "status x%x add_status x%x, mbx status x%x\n", 6521 shdr_status, shdr_add_status, rc); 6522 rc = -ENXIO; 6523 } 6524 return rc; 6525} 6526 6527/** 6528 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 6529 * @phba: pointer to lpfc hba data structure. 6530 * @cnt: number of nop mailbox commands to send. 6531 * 6532 * This routine is invoked to send a number @cnt of NOP mailbox command and 6533 * wait for each command to complete. 6534 * 6535 * Return: the number of NOP mailbox command completed. 6536 **/ 6537static int 6538lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 6539{ 6540 LPFC_MBOXQ_t *mboxq; 6541 int length, cmdsent; 6542 uint32_t mbox_tmo; 6543 uint32_t rc = 0; 6544 uint32_t shdr_status, shdr_add_status; 6545 union lpfc_sli4_cfg_shdr *shdr; 6546 6547 if (cnt == 0) { 6548 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6549 "2518 Requested to send 0 NOP mailbox cmd\n"); 6550 return cnt; 6551 } 6552 6553 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6554 if (!mboxq) { 6555 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6556 "2519 Unable to allocate memory for issuing " 6557 "NOP mailbox command\n"); 6558 return 0; 6559 } 6560 6561 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 6562 length = (sizeof(struct lpfc_mbx_nop) - 6563 sizeof(struct lpfc_sli4_cfg_mhdr)); 6564 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6565 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 6566 6567 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 6568 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 6569 if (!phba->sli4_hba.intr_enable) 6570 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6571 else 6572 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 6573 if (rc == MBX_TIMEOUT) 6574 break; 6575 /* Check return status */ 6576 shdr = (union lpfc_sli4_cfg_shdr *) 6577 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6578 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6579 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 6580 &shdr->response); 6581 if (shdr_status || shdr_add_status || rc) { 6582 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6583 "2520 NOP mailbox command failed " 6584 "status x%x add_status x%x mbx " 6585 "status x%x\n", shdr_status, 6586 shdr_add_status, rc); 6587 break; 6588 } 6589 } 6590 6591 if (rc != MBX_TIMEOUT) 6592 mempool_free(mboxq, phba->mbox_mem_pool); 6593 6594 return cmdsent; 6595} 6596 6597/** 6598 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 6599 * @phba: pointer to lpfc hba data structure. 6600 * 6601 * This routine is invoked to set up the PCI device memory space for device 6602 * with SLI-4 interface spec. 6603 * 6604 * Return codes 6605 * 0 - successful 6606 * other values - error 6607 **/ 6608static int 6609lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 6610{ 6611 struct pci_dev *pdev; 6612 unsigned long bar0map_len, bar1map_len, bar2map_len; 6613 int error = -ENODEV; 6614 6615 /* Obtain PCI device reference */ 6616 if (!phba->pcidev) 6617 return error; 6618 else 6619 pdev = phba->pcidev; 6620 6621 /* Set the device DMA mask size */ 6622 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6623 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6624 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6625 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6626 return error; 6627 } 6628 } 6629 6630 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the 6631 * number of bytes required by each mapping. They are actually 6632 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device. 6633 */ 6634 if (pci_resource_start(pdev, 0)) { 6635 phba->pci_bar0_map = pci_resource_start(pdev, 0); 6636 bar0map_len = pci_resource_len(pdev, 0); 6637 } else { 6638 phba->pci_bar0_map = pci_resource_start(pdev, 1); 6639 bar0map_len = pci_resource_len(pdev, 1); 6640 } 6641 phba->pci_bar1_map = pci_resource_start(pdev, 2); 6642 bar1map_len = pci_resource_len(pdev, 2); 6643 6644 phba->pci_bar2_map = pci_resource_start(pdev, 4); 6645 bar2map_len = pci_resource_len(pdev, 4); 6646 6647 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */ 6648 phba->sli4_hba.conf_regs_memmap_p = 6649 ioremap(phba->pci_bar0_map, bar0map_len); 6650 if (!phba->sli4_hba.conf_regs_memmap_p) { 6651 dev_printk(KERN_ERR, &pdev->dev, 6652 "ioremap failed for SLI4 PCI config registers.\n"); 6653 goto out; 6654 } 6655 6656 /* Map SLI4 HBA Control Register base to a kernel virtual address. */ 6657 phba->sli4_hba.ctrl_regs_memmap_p = 6658 ioremap(phba->pci_bar1_map, bar1map_len); 6659 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 6660 dev_printk(KERN_ERR, &pdev->dev, 6661 "ioremap failed for SLI4 HBA control registers.\n"); 6662 goto out_iounmap_conf; 6663 } 6664 6665 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */ 6666 phba->sli4_hba.drbl_regs_memmap_p = 6667 ioremap(phba->pci_bar2_map, bar2map_len); 6668 if (!phba->sli4_hba.drbl_regs_memmap_p) { 6669 dev_printk(KERN_ERR, &pdev->dev, 6670 "ioremap failed for SLI4 HBA doorbell registers.\n"); 6671 goto out_iounmap_ctrl; 6672 } 6673 6674 /* Set up BAR0 PCI config space register memory map */ 6675 lpfc_sli4_bar0_register_memmap(phba); 6676 6677 /* Set up BAR1 register memory map */ 6678 lpfc_sli4_bar1_register_memmap(phba); 6679 6680 /* Set up BAR2 register memory map */ 6681 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 6682 if (error) 6683 goto out_iounmap_all; 6684 6685 return 0; 6686 6687out_iounmap_all: 6688 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6689out_iounmap_ctrl: 6690 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6691out_iounmap_conf: 6692 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6693out: 6694 return error; 6695} 6696 6697/** 6698 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 6699 * @phba: pointer to lpfc hba data structure. 6700 * 6701 * This routine is invoked to unset the PCI device memory space for device 6702 * with SLI-4 interface spec. 6703 **/ 6704static void 6705lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 6706{ 6707 struct pci_dev *pdev; 6708 6709 /* Obtain PCI device reference */ 6710 if (!phba->pcidev) 6711 return; 6712 else 6713 pdev = phba->pcidev; 6714 6715 /* Free coherent DMA memory allocated */ 6716 6717 /* Unmap I/O memory space */ 6718 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6719 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6720 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6721 6722 return; 6723} 6724 6725/** 6726 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 6727 * @phba: pointer to lpfc hba data structure. 6728 * 6729 * This routine is invoked to enable the MSI-X interrupt vectors to device 6730 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 6731 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 6732 * invoked, enables either all or nothing, depending on the current 6733 * availability of PCI vector resources. The device driver is responsible 6734 * for calling the individual request_irq() to register each MSI-X vector 6735 * with a interrupt handler, which is done in this function. Note that 6736 * later when device is unloading, the driver should always call free_irq() 6737 * on all MSI-X vectors it has done request_irq() on before calling 6738 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 6739 * will be left with MSI-X enabled and leaks its vectors. 6740 * 6741 * Return codes 6742 * 0 - successful 6743 * other values - error 6744 **/ 6745static int 6746lpfc_sli_enable_msix(struct lpfc_hba *phba) 6747{ 6748 int rc, i; 6749 LPFC_MBOXQ_t *pmb; 6750 6751 /* Set up MSI-X multi-message vectors */ 6752 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6753 phba->msix_entries[i].entry = i; 6754 6755 /* Configure MSI-X capability structure */ 6756 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 6757 ARRAY_SIZE(phba->msix_entries)); 6758 if (rc) { 6759 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6760 "0420 PCI enable MSI-X failed (%d)\n", rc); 6761 goto msi_fail_out; 6762 } 6763 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6764 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6765 "0477 MSI-X entry[%d]: vector=x%x " 6766 "message=%d\n", i, 6767 phba->msix_entries[i].vector, 6768 phba->msix_entries[i].entry); 6769 /* 6770 * Assign MSI-X vectors to interrupt handlers 6771 */ 6772 6773 /* vector-0 is associated to slow-path handler */ 6774 rc = request_irq(phba->msix_entries[0].vector, 6775 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 6776 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6777 if (rc) { 6778 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6779 "0421 MSI-X slow-path request_irq failed " 6780 "(%d)\n", rc); 6781 goto msi_fail_out; 6782 } 6783 6784 /* vector-1 is associated to fast-path handler */ 6785 rc = request_irq(phba->msix_entries[1].vector, 6786 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 6787 LPFC_FP_DRIVER_HANDLER_NAME, phba); 6788 6789 if (rc) { 6790 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6791 "0429 MSI-X fast-path request_irq failed " 6792 "(%d)\n", rc); 6793 goto irq_fail_out; 6794 } 6795 6796 /* 6797 * Configure HBA MSI-X attention conditions to messages 6798 */ 6799 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6800 6801 if (!pmb) { 6802 rc = -ENOMEM; 6803 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6804 "0474 Unable to allocate memory for issuing " 6805 "MBOX_CONFIG_MSI command\n"); 6806 goto mem_fail_out; 6807 } 6808 rc = lpfc_config_msi(phba, pmb); 6809 if (rc) 6810 goto mbx_fail_out; 6811 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6812 if (rc != MBX_SUCCESS) { 6813 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 6814 "0351 Config MSI mailbox command failed, " 6815 "mbxCmd x%x, mbxStatus x%x\n", 6816 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 6817 goto mbx_fail_out; 6818 } 6819 6820 /* Free memory allocated for mailbox command */ 6821 mempool_free(pmb, phba->mbox_mem_pool); 6822 return rc; 6823 6824mbx_fail_out: 6825 /* Free memory allocated for mailbox command */ 6826 mempool_free(pmb, phba->mbox_mem_pool); 6827 6828mem_fail_out: 6829 /* free the irq already requested */ 6830 free_irq(phba->msix_entries[1].vector, phba); 6831 6832irq_fail_out: 6833 /* free the irq already requested */ 6834 free_irq(phba->msix_entries[0].vector, phba); 6835 6836msi_fail_out: 6837 /* Unconfigure MSI-X capability structure */ 6838 pci_disable_msix(phba->pcidev); 6839 return rc; 6840} 6841 6842/** 6843 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 6844 * @phba: pointer to lpfc hba data structure. 6845 * 6846 * This routine is invoked to release the MSI-X vectors and then disable the 6847 * MSI-X interrupt mode to device with SLI-3 interface spec. 6848 **/ 6849static void 6850lpfc_sli_disable_msix(struct lpfc_hba *phba) 6851{ 6852 int i; 6853 6854 /* Free up MSI-X multi-message vectors */ 6855 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6856 free_irq(phba->msix_entries[i].vector, phba); 6857 /* Disable MSI-X */ 6858 pci_disable_msix(phba->pcidev); 6859 6860 return; 6861} 6862 6863/** 6864 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 6865 * @phba: pointer to lpfc hba data structure. 6866 * 6867 * This routine is invoked to enable the MSI interrupt mode to device with 6868 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 6869 * enable the MSI vector. The device driver is responsible for calling the 6870 * request_irq() to register MSI vector with a interrupt the handler, which 6871 * is done in this function. 6872 * 6873 * Return codes 6874 * 0 - successful 6875 * other values - error 6876 */ 6877static int 6878lpfc_sli_enable_msi(struct lpfc_hba *phba) 6879{ 6880 int rc; 6881 6882 rc = pci_enable_msi(phba->pcidev); 6883 if (!rc) 6884 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6885 "0462 PCI enable MSI mode success.\n"); 6886 else { 6887 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6888 "0471 PCI enable MSI mode failed (%d)\n", rc); 6889 return rc; 6890 } 6891 6892 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6893 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6894 if (rc) { 6895 pci_disable_msi(phba->pcidev); 6896 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6897 "0478 MSI request_irq failed (%d)\n", rc); 6898 } 6899 return rc; 6900} 6901 6902/** 6903 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 6904 * @phba: pointer to lpfc hba data structure. 6905 * 6906 * This routine is invoked to disable the MSI interrupt mode to device with 6907 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 6908 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6909 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6910 * its vector. 6911 */ 6912static void 6913lpfc_sli_disable_msi(struct lpfc_hba *phba) 6914{ 6915 free_irq(phba->pcidev->irq, phba); 6916 pci_disable_msi(phba->pcidev); 6917 return; 6918} 6919 6920/** 6921 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 6922 * @phba: pointer to lpfc hba data structure. 6923 * 6924 * This routine is invoked to enable device interrupt and associate driver's 6925 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 6926 * spec. Depends on the interrupt mode configured to the driver, the driver 6927 * will try to fallback from the configured interrupt mode to an interrupt 6928 * mode which is supported by the platform, kernel, and device in the order 6929 * of: 6930 * MSI-X -> MSI -> IRQ. 6931 * 6932 * Return codes 6933 * 0 - successful 6934 * other values - error 6935 **/ 6936static uint32_t 6937lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6938{ 6939 uint32_t intr_mode = LPFC_INTR_ERROR; 6940 int retval; 6941 6942 if (cfg_mode == 2) { 6943 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 6944 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 6945 if (!retval) { 6946 /* Now, try to enable MSI-X interrupt mode */ 6947 retval = lpfc_sli_enable_msix(phba); 6948 if (!retval) { 6949 /* Indicate initialization to MSI-X mode */ 6950 phba->intr_type = MSIX; 6951 intr_mode = 2; 6952 } 6953 } 6954 } 6955 6956 /* Fallback to MSI if MSI-X initialization failed */ 6957 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6958 retval = lpfc_sli_enable_msi(phba); 6959 if (!retval) { 6960 /* Indicate initialization to MSI mode */ 6961 phba->intr_type = MSI; 6962 intr_mode = 1; 6963 } 6964 } 6965 6966 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6967 if (phba->intr_type == NONE) { 6968 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6969 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6970 if (!retval) { 6971 /* Indicate initialization to INTx mode */ 6972 phba->intr_type = INTx; 6973 intr_mode = 0; 6974 } 6975 } 6976 return intr_mode; 6977} 6978 6979/** 6980 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 6981 * @phba: pointer to lpfc hba data structure. 6982 * 6983 * This routine is invoked to disable device interrupt and disassociate the 6984 * driver's interrupt handler(s) from interrupt vector(s) to device with 6985 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 6986 * release the interrupt vector(s) for the message signaled interrupt. 6987 **/ 6988static void 6989lpfc_sli_disable_intr(struct lpfc_hba *phba) 6990{ 6991 /* Disable the currently initialized interrupt mode */ 6992 if (phba->intr_type == MSIX) 6993 lpfc_sli_disable_msix(phba); 6994 else if (phba->intr_type == MSI) 6995 lpfc_sli_disable_msi(phba); 6996 else if (phba->intr_type == INTx) 6997 free_irq(phba->pcidev->irq, phba); 6998 6999 /* Reset interrupt management states */ 7000 phba->intr_type = NONE; 7001 phba->sli.slistat.sli_intr = 0; 7002 7003 return; 7004} 7005 7006/** 7007 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 7008 * @phba: pointer to lpfc hba data structure. 7009 * 7010 * This routine is invoked to enable the MSI-X interrupt vectors to device 7011 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 7012 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 7013 * enables either all or nothing, depending on the current availability of 7014 * PCI vector resources. The device driver is responsible for calling the 7015 * individual request_irq() to register each MSI-X vector with a interrupt 7016 * handler, which is done in this function. Note that later when device is 7017 * unloading, the driver should always call free_irq() on all MSI-X vectors 7018 * it has done request_irq() on before calling pci_disable_msix(). Failure 7019 * to do so results in a BUG_ON() and a device will be left with MSI-X 7020 * enabled and leaks its vectors. 7021 * 7022 * Return codes 7023 * 0 - successful 7024 * other values - error 7025 **/ 7026static int 7027lpfc_sli4_enable_msix(struct lpfc_hba *phba) 7028{ 7029 int vectors, rc, index; 7030 7031 /* Set up MSI-X multi-message vectors */ 7032 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 7033 phba->sli4_hba.msix_entries[index].entry = index; 7034 7035 /* Configure MSI-X capability structure */ 7036 vectors = phba->sli4_hba.cfg_eqn; 7037enable_msix_vectors: 7038 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 7039 vectors); 7040 if (rc > 1) { 7041 vectors = rc; 7042 goto enable_msix_vectors; 7043 } else if (rc) { 7044 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7045 "0484 PCI enable MSI-X failed (%d)\n", rc); 7046 goto msi_fail_out; 7047 } 7048 7049 /* Log MSI-X vector assignment */ 7050 for (index = 0; index < vectors; index++) 7051 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7052 "0489 MSI-X entry[%d]: vector=x%x " 7053 "message=%d\n", index, 7054 phba->sli4_hba.msix_entries[index].vector, 7055 phba->sli4_hba.msix_entries[index].entry); 7056 /* 7057 * Assign MSI-X vectors to interrupt handlers 7058 */ 7059 7060 /* The first vector must associated to slow-path handler for MQ */ 7061 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7062 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 7063 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7064 if (rc) { 7065 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7066 "0485 MSI-X slow-path request_irq failed " 7067 "(%d)\n", rc); 7068 goto msi_fail_out; 7069 } 7070 7071 /* The rest of the vector(s) are associated to fast-path handler(s) */ 7072 for (index = 1; index < vectors; index++) { 7073 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 7074 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 7075 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 7076 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 7077 LPFC_FP_DRIVER_HANDLER_NAME, 7078 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7079 if (rc) { 7080 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7081 "0486 MSI-X fast-path (%d) " 7082 "request_irq failed (%d)\n", index, rc); 7083 goto cfg_fail_out; 7084 } 7085 } 7086 phba->sli4_hba.msix_vec_nr = vectors; 7087 7088 return rc; 7089 7090cfg_fail_out: 7091 /* free the irq already requested */ 7092 for (--index; index >= 1; index--) 7093 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 7094 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7095 7096 /* free the irq already requested */ 7097 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7098 7099msi_fail_out: 7100 /* Unconfigure MSI-X capability structure */ 7101 pci_disable_msix(phba->pcidev); 7102 return rc; 7103} 7104 7105/** 7106 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 7107 * @phba: pointer to lpfc hba data structure. 7108 * 7109 * This routine is invoked to release the MSI-X vectors and then disable the 7110 * MSI-X interrupt mode to device with SLI-4 interface spec. 7111 **/ 7112static void 7113lpfc_sli4_disable_msix(struct lpfc_hba *phba) 7114{ 7115 int index; 7116 7117 /* Free up MSI-X multi-message vectors */ 7118 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7119 7120 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++) 7121 free_irq(phba->sli4_hba.msix_entries[index].vector, 7122 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7123 7124 /* Disable MSI-X */ 7125 pci_disable_msix(phba->pcidev); 7126 7127 return; 7128} 7129 7130/** 7131 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 7132 * @phba: pointer to lpfc hba data structure. 7133 * 7134 * This routine is invoked to enable the MSI interrupt mode to device with 7135 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 7136 * to enable the MSI vector. The device driver is responsible for calling 7137 * the request_irq() to register MSI vector with a interrupt the handler, 7138 * which is done in this function. 7139 * 7140 * Return codes 7141 * 0 - successful 7142 * other values - error 7143 **/ 7144static int 7145lpfc_sli4_enable_msi(struct lpfc_hba *phba) 7146{ 7147 int rc, index; 7148 7149 rc = pci_enable_msi(phba->pcidev); 7150 if (!rc) 7151 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7152 "0487 PCI enable MSI mode success.\n"); 7153 else { 7154 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7155 "0488 PCI enable MSI mode failed (%d)\n", rc); 7156 return rc; 7157 } 7158 7159 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7160 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7161 if (rc) { 7162 pci_disable_msi(phba->pcidev); 7163 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7164 "0490 MSI request_irq failed (%d)\n", rc); 7165 return rc; 7166 } 7167 7168 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 7169 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7170 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7171 } 7172 7173 return 0; 7174} 7175 7176/** 7177 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 7178 * @phba: pointer to lpfc hba data structure. 7179 * 7180 * This routine is invoked to disable the MSI interrupt mode to device with 7181 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 7182 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7183 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7184 * its vector. 7185 **/ 7186static void 7187lpfc_sli4_disable_msi(struct lpfc_hba *phba) 7188{ 7189 free_irq(phba->pcidev->irq, phba); 7190 pci_disable_msi(phba->pcidev); 7191 return; 7192} 7193 7194/** 7195 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 7196 * @phba: pointer to lpfc hba data structure. 7197 * 7198 * This routine is invoked to enable device interrupt and associate driver's 7199 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 7200 * interface spec. Depends on the interrupt mode configured to the driver, 7201 * the driver will try to fallback from the configured interrupt mode to an 7202 * interrupt mode which is supported by the platform, kernel, and device in 7203 * the order of: 7204 * MSI-X -> MSI -> IRQ. 7205 * 7206 * Return codes 7207 * 0 - successful 7208 * other values - error 7209 **/ 7210static uint32_t 7211lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7212{ 7213 uint32_t intr_mode = LPFC_INTR_ERROR; 7214 int retval, index; 7215 7216 if (cfg_mode == 2) { 7217 /* Preparation before conf_msi mbox cmd */ 7218 retval = 0; 7219 if (!retval) { 7220 /* Now, try to enable MSI-X interrupt mode */ 7221 retval = lpfc_sli4_enable_msix(phba); 7222 if (!retval) { 7223 /* Indicate initialization to MSI-X mode */ 7224 phba->intr_type = MSIX; 7225 intr_mode = 2; 7226 } 7227 } 7228 } 7229 7230 /* Fallback to MSI if MSI-X initialization failed */ 7231 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7232 retval = lpfc_sli4_enable_msi(phba); 7233 if (!retval) { 7234 /* Indicate initialization to MSI mode */ 7235 phba->intr_type = MSI; 7236 intr_mode = 1; 7237 } 7238 } 7239 7240 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7241 if (phba->intr_type == NONE) { 7242 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7243 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7244 if (!retval) { 7245 /* Indicate initialization to INTx mode */ 7246 phba->intr_type = INTx; 7247 intr_mode = 0; 7248 for (index = 0; index < phba->cfg_fcp_eq_count; 7249 index++) { 7250 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7251 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7252 } 7253 } 7254 } 7255 return intr_mode; 7256} 7257 7258/** 7259 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 7260 * @phba: pointer to lpfc hba data structure. 7261 * 7262 * This routine is invoked to disable device interrupt and disassociate 7263 * the driver's interrupt handler(s) from interrupt vector(s) to device 7264 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 7265 * will release the interrupt vector(s) for the message signaled interrupt. 7266 **/ 7267static void 7268lpfc_sli4_disable_intr(struct lpfc_hba *phba) 7269{ 7270 /* Disable the currently initialized interrupt mode */ 7271 if (phba->intr_type == MSIX) 7272 lpfc_sli4_disable_msix(phba); 7273 else if (phba->intr_type == MSI) 7274 lpfc_sli4_disable_msi(phba); 7275 else if (phba->intr_type == INTx) 7276 free_irq(phba->pcidev->irq, phba); 7277 7278 /* Reset interrupt management states */ 7279 phba->intr_type = NONE; 7280 phba->sli.slistat.sli_intr = 0; 7281 7282 return; 7283} 7284 7285/** 7286 * lpfc_unset_hba - Unset SLI3 hba device initialization 7287 * @phba: pointer to lpfc hba data structure. 7288 * 7289 * This routine is invoked to unset the HBA device initialization steps to 7290 * a device with SLI-3 interface spec. 7291 **/ 7292static void 7293lpfc_unset_hba(struct lpfc_hba *phba) 7294{ 7295 struct lpfc_vport *vport = phba->pport; 7296 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7297 7298 spin_lock_irq(shost->host_lock); 7299 vport->load_flag |= FC_UNLOADING; 7300 spin_unlock_irq(shost->host_lock); 7301 7302 lpfc_stop_hba_timers(phba); 7303 7304 phba->pport->work_port_events = 0; 7305 7306 lpfc_sli_hba_down(phba); 7307 7308 lpfc_sli_brdrestart(phba); 7309 7310 lpfc_sli_disable_intr(phba); 7311 7312 return; 7313} 7314 7315/** 7316 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 7317 * @phba: pointer to lpfc hba data structure. 7318 * 7319 * This routine is invoked to unset the HBA device initialization steps to 7320 * a device with SLI-4 interface spec. 7321 **/ 7322static void 7323lpfc_sli4_unset_hba(struct lpfc_hba *phba) 7324{ 7325 struct lpfc_vport *vport = phba->pport; 7326 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7327 7328 spin_lock_irq(shost->host_lock); 7329 vport->load_flag |= FC_UNLOADING; 7330 spin_unlock_irq(shost->host_lock); 7331 7332 phba->pport->work_port_events = 0; 7333 7334 /* Stop the SLI4 device port */ 7335 lpfc_stop_port(phba); 7336 7337 lpfc_sli4_disable_intr(phba); 7338 7339 /* Reset SLI4 HBA FCoE function */ 7340 lpfc_pci_function_reset(phba); 7341 7342 return; 7343} 7344 7345/** 7346 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 7347 * @phba: Pointer to HBA context object. 7348 * 7349 * This function is called in the SLI4 code path to wait for completion 7350 * of device's XRIs exchange busy. It will check the XRI exchange busy 7351 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 7352 * that, it will check the XRI exchange busy on outstanding FCP and ELS 7353 * I/Os every 30 seconds, log error message, and wait forever. Only when 7354 * all XRI exchange busy complete, the driver unload shall proceed with 7355 * invoking the function reset ioctl mailbox command to the CNA and the 7356 * the rest of the driver unload resource release. 7357 **/ 7358static void 7359lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 7360{ 7361 int wait_time = 0; 7362 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 7363 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 7364 7365 while (!fcp_xri_cmpl || !els_xri_cmpl) { 7366 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 7367 if (!fcp_xri_cmpl) 7368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7369 "2877 FCP XRI exchange busy " 7370 "wait time: %d seconds.\n", 7371 wait_time/1000); 7372 if (!els_xri_cmpl) 7373 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7374 "2878 ELS XRI exchange busy " 7375 "wait time: %d seconds.\n", 7376 wait_time/1000); 7377 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 7378 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 7379 } else { 7380 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 7381 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 7382 } 7383 fcp_xri_cmpl = 7384 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 7385 els_xri_cmpl = 7386 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 7387 } 7388} 7389 7390/** 7391 * lpfc_sli4_hba_unset - Unset the fcoe hba 7392 * @phba: Pointer to HBA context object. 7393 * 7394 * This function is called in the SLI4 code path to reset the HBA's FCoE 7395 * function. The caller is not required to hold any lock. This routine 7396 * issues PCI function reset mailbox command to reset the FCoE function. 7397 * At the end of the function, it calls lpfc_hba_down_post function to 7398 * free any pending commands. 7399 **/ 7400static void 7401lpfc_sli4_hba_unset(struct lpfc_hba *phba) 7402{ 7403 int wait_cnt = 0; 7404 LPFC_MBOXQ_t *mboxq; 7405 7406 lpfc_stop_hba_timers(phba); 7407 phba->sli4_hba.intr_enable = 0; 7408 7409 /* 7410 * Gracefully wait out the potential current outstanding asynchronous 7411 * mailbox command. 7412 */ 7413 7414 /* First, block any pending async mailbox command from posted */ 7415 spin_lock_irq(&phba->hbalock); 7416 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 7417 spin_unlock_irq(&phba->hbalock); 7418 /* Now, trying to wait it out if we can */ 7419 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7420 msleep(10); 7421 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 7422 break; 7423 } 7424 /* Forcefully release the outstanding mailbox command if timed out */ 7425 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7426 spin_lock_irq(&phba->hbalock); 7427 mboxq = phba->sli.mbox_active; 7428 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 7429 __lpfc_mbox_cmpl_put(phba, mboxq); 7430 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 7431 phba->sli.mbox_active = NULL; 7432 spin_unlock_irq(&phba->hbalock); 7433 } 7434 7435 /* Abort all iocbs associated with the hba */ 7436 lpfc_sli_hba_iocb_abort(phba); 7437 7438 /* Wait for completion of device XRI exchange busy */ 7439 lpfc_sli4_xri_exchange_busy_wait(phba); 7440 7441 /* Disable PCI subsystem interrupt */ 7442 lpfc_sli4_disable_intr(phba); 7443 7444 /* Stop kthread signal shall trigger work_done one more time */ 7445 kthread_stop(phba->worker_thread); 7446 7447 /* Reset SLI4 HBA FCoE function */ 7448 lpfc_pci_function_reset(phba); 7449 7450 /* Stop the SLI4 device port */ 7451 phba->pport->work_port_events = 0; 7452} 7453 7454 /** 7455 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 7456 * @phba: Pointer to HBA context object. 7457 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 7458 * 7459 * This function is called in the SLI4 code path to read the port's 7460 * sli4 capabilities. 7461 * 7462 * This function may be be called from any context that can block-wait 7463 * for the completion. The expectation is that this routine is called 7464 * typically from probe_one or from the online routine. 7465 **/ 7466int 7467lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 7468{ 7469 int rc; 7470 struct lpfc_mqe *mqe; 7471 struct lpfc_pc_sli4_params *sli4_params; 7472 uint32_t mbox_tmo; 7473 7474 rc = 0; 7475 mqe = &mboxq->u.mqe; 7476 7477 /* Read the port's SLI4 Parameters port capabilities */ 7478 lpfc_sli4_params(mboxq); 7479 if (!phba->sli4_hba.intr_enable) 7480 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7481 else { 7482 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES); 7483 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7484 } 7485 7486 if (unlikely(rc)) 7487 return 1; 7488 7489 sli4_params = &phba->sli4_hba.pc_sli4_params; 7490 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 7491 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 7492 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 7493 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 7494 &mqe->un.sli4_params); 7495 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 7496 &mqe->un.sli4_params); 7497 sli4_params->proto_types = mqe->un.sli4_params.word3; 7498 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 7499 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 7500 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 7501 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 7502 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 7503 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 7504 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 7505 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 7506 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 7507 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 7508 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 7509 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 7510 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 7511 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 7512 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 7513 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 7514 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 7515 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 7516 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 7517 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 7518 return rc; 7519} 7520 7521/** 7522 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 7523 * @pdev: pointer to PCI device 7524 * @pid: pointer to PCI device identifier 7525 * 7526 * This routine is to be called to attach a device with SLI-3 interface spec 7527 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 7528 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 7529 * information of the device and driver to see if the driver state that it can 7530 * support this kind of device. If the match is successful, the driver core 7531 * invokes this routine. If this routine determines it can claim the HBA, it 7532 * does all the initialization that it needs to do to handle the HBA properly. 7533 * 7534 * Return code 7535 * 0 - driver can claim the device 7536 * negative value - driver can not claim the device 7537 **/ 7538static int __devinit 7539lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 7540{ 7541 struct lpfc_hba *phba; 7542 struct lpfc_vport *vport = NULL; 7543 struct Scsi_Host *shost = NULL; 7544 int error; 7545 uint32_t cfg_mode, intr_mode; 7546 7547 /* Allocate memory for HBA structure */ 7548 phba = lpfc_hba_alloc(pdev); 7549 if (!phba) 7550 return -ENOMEM; 7551 7552 /* Perform generic PCI device enabling operation */ 7553 error = lpfc_enable_pci_dev(phba); 7554 if (error) { 7555 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7556 "1401 Failed to enable pci device.\n"); 7557 goto out_free_phba; 7558 } 7559 7560 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 7561 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 7562 if (error) 7563 goto out_disable_pci_dev; 7564 7565 /* Set up SLI-3 specific device PCI memory space */ 7566 error = lpfc_sli_pci_mem_setup(phba); 7567 if (error) { 7568 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7569 "1402 Failed to set up pci memory space.\n"); 7570 goto out_disable_pci_dev; 7571 } 7572 7573 /* Set up phase-1 common device driver resources */ 7574 error = lpfc_setup_driver_resource_phase1(phba); 7575 if (error) { 7576 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7577 "1403 Failed to set up driver resource.\n"); 7578 goto out_unset_pci_mem_s3; 7579 } 7580 7581 /* Set up SLI-3 specific device driver resources */ 7582 error = lpfc_sli_driver_resource_setup(phba); 7583 if (error) { 7584 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7585 "1404 Failed to set up driver resource.\n"); 7586 goto out_unset_pci_mem_s3; 7587 } 7588 7589 /* Initialize and populate the iocb list per host */ 7590 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 7591 if (error) { 7592 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7593 "1405 Failed to initialize iocb list.\n"); 7594 goto out_unset_driver_resource_s3; 7595 } 7596 7597 /* Set up common device driver resources */ 7598 error = lpfc_setup_driver_resource_phase2(phba); 7599 if (error) { 7600 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7601 "1406 Failed to set up driver resource.\n"); 7602 goto out_free_iocb_list; 7603 } 7604 7605 /* Create SCSI host to the physical port */ 7606 error = lpfc_create_shost(phba); 7607 if (error) { 7608 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7609 "1407 Failed to create scsi host.\n"); 7610 goto out_unset_driver_resource; 7611 } 7612 7613 /* Configure sysfs attributes */ 7614 vport = phba->pport; 7615 error = lpfc_alloc_sysfs_attr(vport); 7616 if (error) { 7617 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7618 "1476 Failed to allocate sysfs attr\n"); 7619 goto out_destroy_shost; 7620 } 7621 7622 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 7623 /* Now, trying to enable interrupt and bring up the device */ 7624 cfg_mode = phba->cfg_use_msi; 7625 while (true) { 7626 /* Put device to a known state before enabling interrupt */ 7627 lpfc_stop_port(phba); 7628 /* Configure and enable interrupt */ 7629 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 7630 if (intr_mode == LPFC_INTR_ERROR) { 7631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7632 "0431 Failed to enable interrupt.\n"); 7633 error = -ENODEV; 7634 goto out_free_sysfs_attr; 7635 } 7636 /* SLI-3 HBA setup */ 7637 if (lpfc_sli_hba_setup(phba)) { 7638 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7639 "1477 Failed to set up hba\n"); 7640 error = -ENODEV; 7641 goto out_remove_device; 7642 } 7643 7644 /* Wait 50ms for the interrupts of previous mailbox commands */ 7645 msleep(50); 7646 /* Check active interrupts on message signaled interrupts */ 7647 if (intr_mode == 0 || 7648 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 7649 /* Log the current active interrupt mode */ 7650 phba->intr_mode = intr_mode; 7651 lpfc_log_intr_mode(phba, intr_mode); 7652 break; 7653 } else { 7654 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7655 "0447 Configure interrupt mode (%d) " 7656 "failed active interrupt test.\n", 7657 intr_mode); 7658 /* Disable the current interrupt mode */ 7659 lpfc_sli_disable_intr(phba); 7660 /* Try next level of interrupt mode */ 7661 cfg_mode = --intr_mode; 7662 } 7663 } 7664 7665 /* Perform post initialization setup */ 7666 lpfc_post_init_setup(phba); 7667 7668 /* Check if there are static vports to be created. */ 7669 lpfc_create_static_vport(phba); 7670 7671 return 0; 7672 7673out_remove_device: 7674 lpfc_unset_hba(phba); 7675out_free_sysfs_attr: 7676 lpfc_free_sysfs_attr(vport); 7677out_destroy_shost: 7678 lpfc_destroy_shost(phba); 7679out_unset_driver_resource: 7680 lpfc_unset_driver_resource_phase2(phba); 7681out_free_iocb_list: 7682 lpfc_free_iocb_list(phba); 7683out_unset_driver_resource_s3: 7684 lpfc_sli_driver_resource_unset(phba); 7685out_unset_pci_mem_s3: 7686 lpfc_sli_pci_mem_unset(phba); 7687out_disable_pci_dev: 7688 lpfc_disable_pci_dev(phba); 7689 if (shost) 7690 scsi_host_put(shost); 7691out_free_phba: 7692 lpfc_hba_free(phba); 7693 return error; 7694} 7695 7696/** 7697 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 7698 * @pdev: pointer to PCI device 7699 * 7700 * This routine is to be called to disattach a device with SLI-3 interface 7701 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 7702 * removed from PCI bus, it performs all the necessary cleanup for the HBA 7703 * device to be removed from the PCI subsystem properly. 7704 **/ 7705static void __devexit 7706lpfc_pci_remove_one_s3(struct pci_dev *pdev) 7707{ 7708 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7709 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7710 struct lpfc_vport **vports; 7711 struct lpfc_hba *phba = vport->phba; 7712 int i; 7713 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 7714 7715 spin_lock_irq(&phba->hbalock); 7716 vport->load_flag |= FC_UNLOADING; 7717 spin_unlock_irq(&phba->hbalock); 7718 7719 lpfc_free_sysfs_attr(vport); 7720 7721 /* Release all the vports against this physical port */ 7722 vports = lpfc_create_vport_work_array(phba); 7723 if (vports != NULL) 7724 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 7725 fc_vport_terminate(vports[i]->fc_vport); 7726 lpfc_destroy_vport_work_array(phba, vports); 7727 7728 /* Remove FC host and then SCSI host with the physical port */ 7729 fc_remove_host(shost); 7730 scsi_remove_host(shost); 7731 lpfc_cleanup(vport); 7732 7733 /* 7734 * Bring down the SLI Layer. This step disable all interrupts, 7735 * clears the rings, discards all mailbox commands, and resets 7736 * the HBA. 7737 */ 7738 7739 /* HBA interrupt will be diabled after this call */ 7740 lpfc_sli_hba_down(phba); 7741 /* Stop kthread signal shall trigger work_done one more time */ 7742 kthread_stop(phba->worker_thread); 7743 /* Final cleanup of txcmplq and reset the HBA */ 7744 lpfc_sli_brdrestart(phba); 7745 7746 lpfc_stop_hba_timers(phba); 7747 spin_lock_irq(&phba->hbalock); 7748 list_del_init(&vport->listentry); 7749 spin_unlock_irq(&phba->hbalock); 7750 7751 lpfc_debugfs_terminate(vport); 7752 7753 /* Disable interrupt */ 7754 lpfc_sli_disable_intr(phba); 7755 7756 pci_set_drvdata(pdev, NULL); 7757 scsi_host_put(shost); 7758 7759 /* 7760 * Call scsi_free before mem_free since scsi bufs are released to their 7761 * corresponding pools here. 7762 */ 7763 lpfc_scsi_free(phba); 7764 lpfc_mem_free_all(phba); 7765 7766 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7767 phba->hbqslimp.virt, phba->hbqslimp.phys); 7768 7769 /* Free resources associated with SLI2 interface */ 7770 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7771 phba->slim2p.virt, phba->slim2p.phys); 7772 7773 /* unmap adapter SLIM and Control Registers */ 7774 iounmap(phba->ctrl_regs_memmap_p); 7775 iounmap(phba->slim_memmap_p); 7776 7777 lpfc_hba_free(phba); 7778 7779 pci_release_selected_regions(pdev, bars); 7780 pci_disable_device(pdev); 7781} 7782 7783/** 7784 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 7785 * @pdev: pointer to PCI device 7786 * @msg: power management message 7787 * 7788 * This routine is to be called from the kernel's PCI subsystem to support 7789 * system Power Management (PM) to device with SLI-3 interface spec. When 7790 * PM invokes this method, it quiesces the device by stopping the driver's 7791 * worker thread for the device, turning off device's interrupt and DMA, 7792 * and bring the device offline. Note that as the driver implements the 7793 * minimum PM requirements to a power-aware driver's PM support for the 7794 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 7795 * to the suspend() method call will be treated as SUSPEND and the driver will 7796 * fully reinitialize its device during resume() method call, the driver will 7797 * set device to PCI_D3hot state in PCI config space instead of setting it 7798 * according to the @msg provided by the PM. 7799 * 7800 * Return code 7801 * 0 - driver suspended the device 7802 * Error otherwise 7803 **/ 7804static int 7805lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 7806{ 7807 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7808 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7809 7810 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7811 "0473 PCI device Power Management suspend.\n"); 7812 7813 /* Bring down the device */ 7814 lpfc_offline_prep(phba); 7815 lpfc_offline(phba); 7816 kthread_stop(phba->worker_thread); 7817 7818 /* Disable interrupt from device */ 7819 lpfc_sli_disable_intr(phba); 7820 7821 /* Save device state to PCI config space */ 7822 pci_save_state(pdev); 7823 pci_set_power_state(pdev, PCI_D3hot); 7824 7825 return 0; 7826} 7827 7828/** 7829 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 7830 * @pdev: pointer to PCI device 7831 * 7832 * This routine is to be called from the kernel's PCI subsystem to support 7833 * system Power Management (PM) to device with SLI-3 interface spec. When PM 7834 * invokes this method, it restores the device's PCI config space state and 7835 * fully reinitializes the device and brings it online. Note that as the 7836 * driver implements the minimum PM requirements to a power-aware driver's 7837 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 7838 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 7839 * driver will fully reinitialize its device during resume() method call, 7840 * the device will be set to PCI_D0 directly in PCI config space before 7841 * restoring the state. 7842 * 7843 * Return code 7844 * 0 - driver suspended the device 7845 * Error otherwise 7846 **/ 7847static int 7848lpfc_pci_resume_one_s3(struct pci_dev *pdev) 7849{ 7850 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7851 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7852 uint32_t intr_mode; 7853 int error; 7854 7855 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7856 "0452 PCI device Power Management resume.\n"); 7857 7858 /* Restore device state from PCI config space */ 7859 pci_set_power_state(pdev, PCI_D0); 7860 pci_restore_state(pdev); 7861 7862 /* 7863 * As the new kernel behavior of pci_restore_state() API call clears 7864 * device saved_state flag, need to save the restored state again. 7865 */ 7866 pci_save_state(pdev); 7867 7868 if (pdev->is_busmaster) 7869 pci_set_master(pdev); 7870 7871 /* Startup the kernel thread for this host adapter. */ 7872 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7873 "lpfc_worker_%d", phba->brd_no); 7874 if (IS_ERR(phba->worker_thread)) { 7875 error = PTR_ERR(phba->worker_thread); 7876 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7877 "0434 PM resume failed to start worker " 7878 "thread: error=x%x.\n", error); 7879 return error; 7880 } 7881 7882 /* Configure and enable interrupt */ 7883 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7884 if (intr_mode == LPFC_INTR_ERROR) { 7885 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7886 "0430 PM resume Failed to enable interrupt\n"); 7887 return -EIO; 7888 } else 7889 phba->intr_mode = intr_mode; 7890 7891 /* Restart HBA and bring it online */ 7892 lpfc_sli_brdrestart(phba); 7893 lpfc_online(phba); 7894 7895 /* Log the current active interrupt mode */ 7896 lpfc_log_intr_mode(phba, phba->intr_mode); 7897 7898 return 0; 7899} 7900 7901/** 7902 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 7903 * @phba: pointer to lpfc hba data structure. 7904 * 7905 * This routine is called to prepare the SLI3 device for PCI slot recover. It 7906 * aborts all the outstanding SCSI I/Os to the pci device. 7907 **/ 7908static void 7909lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 7910{ 7911 struct lpfc_sli *psli = &phba->sli; 7912 struct lpfc_sli_ring *pring; 7913 7914 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7915 "2723 PCI channel I/O abort preparing for recovery\n"); 7916 7917 /* 7918 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 7919 * and let the SCSI mid-layer to retry them to recover. 7920 */ 7921 pring = &psli->ring[psli->fcp_ring]; 7922 lpfc_sli_abort_iocb_ring(phba, pring); 7923} 7924 7925/** 7926 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 7927 * @phba: pointer to lpfc hba data structure. 7928 * 7929 * This routine is called to prepare the SLI3 device for PCI slot reset. It 7930 * disables the device interrupt and pci device, and aborts the internal FCP 7931 * pending I/Os. 7932 **/ 7933static void 7934lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 7935{ 7936 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7937 "2710 PCI channel disable preparing for reset\n"); 7938 7939 /* Block any management I/Os to the device */ 7940 lpfc_block_mgmt_io(phba); 7941 7942 /* Block all SCSI devices' I/Os on the host */ 7943 lpfc_scsi_dev_block(phba); 7944 7945 /* stop all timers */ 7946 lpfc_stop_hba_timers(phba); 7947 7948 /* Disable interrupt and pci device */ 7949 lpfc_sli_disable_intr(phba); 7950 pci_disable_device(phba->pcidev); 7951 7952 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 7953 lpfc_sli_flush_fcp_rings(phba); 7954} 7955 7956/** 7957 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 7958 * @phba: pointer to lpfc hba data structure. 7959 * 7960 * This routine is called to prepare the SLI3 device for PCI slot permanently 7961 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 7962 * pending I/Os. 7963 **/ 7964static void 7965lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 7966{ 7967 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7968 "2711 PCI channel permanent disable for failure\n"); 7969 /* Block all SCSI devices' I/Os on the host */ 7970 lpfc_scsi_dev_block(phba); 7971 7972 /* stop all timers */ 7973 lpfc_stop_hba_timers(phba); 7974 7975 /* Clean up all driver's outstanding SCSI I/Os */ 7976 lpfc_sli_flush_fcp_rings(phba); 7977} 7978 7979/** 7980 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 7981 * @pdev: pointer to PCI device. 7982 * @state: the current PCI connection state. 7983 * 7984 * This routine is called from the PCI subsystem for I/O error handling to 7985 * device with SLI-3 interface spec. This function is called by the PCI 7986 * subsystem after a PCI bus error affecting this device has been detected. 7987 * When this function is invoked, it will need to stop all the I/Os and 7988 * interrupt(s) to the device. Once that is done, it will return 7989 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 7990 * as desired. 7991 * 7992 * Return codes 7993 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 7994 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7995 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7996 **/ 7997static pci_ers_result_t 7998lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 7999{ 8000 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8001 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8002 8003 switch (state) { 8004 case pci_channel_io_normal: 8005 /* Non-fatal error, prepare for recovery */ 8006 lpfc_sli_prep_dev_for_recover(phba); 8007 return PCI_ERS_RESULT_CAN_RECOVER; 8008 case pci_channel_io_frozen: 8009 /* Fatal error, prepare for slot reset */ 8010 lpfc_sli_prep_dev_for_reset(phba); 8011 return PCI_ERS_RESULT_NEED_RESET; 8012 case pci_channel_io_perm_failure: 8013 /* Permanent failure, prepare for device down */ 8014 lpfc_sli_prep_dev_for_perm_failure(phba); 8015 return PCI_ERS_RESULT_DISCONNECT; 8016 default: 8017 /* Unknown state, prepare and request slot reset */ 8018 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8019 "0472 Unknown PCI error state: x%x\n", state); 8020 lpfc_sli_prep_dev_for_reset(phba); 8021 return PCI_ERS_RESULT_NEED_RESET; 8022 } 8023} 8024 8025/** 8026 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 8027 * @pdev: pointer to PCI device. 8028 * 8029 * This routine is called from the PCI subsystem for error handling to 8030 * device with SLI-3 interface spec. This is called after PCI bus has been 8031 * reset to restart the PCI card from scratch, as if from a cold-boot. 8032 * During the PCI subsystem error recovery, after driver returns 8033 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 8034 * recovery and then call this routine before calling the .resume method 8035 * to recover the device. This function will initialize the HBA device, 8036 * enable the interrupt, but it will just put the HBA to offline state 8037 * without passing any I/O traffic. 8038 * 8039 * Return codes 8040 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8041 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8042 */ 8043static pci_ers_result_t 8044lpfc_io_slot_reset_s3(struct pci_dev *pdev) 8045{ 8046 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8047 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8048 struct lpfc_sli *psli = &phba->sli; 8049 uint32_t intr_mode; 8050 8051 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 8052 if (pci_enable_device_mem(pdev)) { 8053 printk(KERN_ERR "lpfc: Cannot re-enable " 8054 "PCI device after reset.\n"); 8055 return PCI_ERS_RESULT_DISCONNECT; 8056 } 8057 8058 pci_restore_state(pdev); 8059 8060 /* 8061 * As the new kernel behavior of pci_restore_state() API call clears 8062 * device saved_state flag, need to save the restored state again. 8063 */ 8064 pci_save_state(pdev); 8065 8066 if (pdev->is_busmaster) 8067 pci_set_master(pdev); 8068 8069 spin_lock_irq(&phba->hbalock); 8070 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 8071 spin_unlock_irq(&phba->hbalock); 8072 8073 /* Configure and enable interrupt */ 8074 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8075 if (intr_mode == LPFC_INTR_ERROR) { 8076 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8077 "0427 Cannot re-enable interrupt after " 8078 "slot reset.\n"); 8079 return PCI_ERS_RESULT_DISCONNECT; 8080 } else 8081 phba->intr_mode = intr_mode; 8082 8083 /* Take device offline, it will perform cleanup */ 8084 lpfc_offline_prep(phba); 8085 lpfc_offline(phba); 8086 lpfc_sli_brdrestart(phba); 8087 8088 /* Log the current active interrupt mode */ 8089 lpfc_log_intr_mode(phba, phba->intr_mode); 8090 8091 return PCI_ERS_RESULT_RECOVERED; 8092} 8093 8094/** 8095 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 8096 * @pdev: pointer to PCI device 8097 * 8098 * This routine is called from the PCI subsystem for error handling to device 8099 * with SLI-3 interface spec. It is called when kernel error recovery tells 8100 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8101 * error recovery. After this call, traffic can start to flow from this device 8102 * again. 8103 */ 8104static void 8105lpfc_io_resume_s3(struct pci_dev *pdev) 8106{ 8107 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8108 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8109 8110 /* Bring device online, it will be no-op for non-fatal error resume */ 8111 lpfc_online(phba); 8112 8113 /* Clean up Advanced Error Reporting (AER) if needed */ 8114 if (phba->hba_flag & HBA_AER_ENABLED) 8115 pci_cleanup_aer_uncorrect_error_status(pdev); 8116} 8117 8118/** 8119 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 8120 * @phba: pointer to lpfc hba data structure. 8121 * 8122 * returns the number of ELS/CT IOCBs to reserve 8123 **/ 8124int 8125lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 8126{ 8127 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 8128 8129 if (phba->sli_rev == LPFC_SLI_REV4) { 8130 if (max_xri <= 100) 8131 return 10; 8132 else if (max_xri <= 256) 8133 return 25; 8134 else if (max_xri <= 512) 8135 return 50; 8136 else if (max_xri <= 1024) 8137 return 100; 8138 else 8139 return 150; 8140 } else 8141 return 0; 8142} 8143 8144/** 8145 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 8146 * @pdev: pointer to PCI device 8147 * @pid: pointer to PCI device identifier 8148 * 8149 * This routine is called from the kernel's PCI subsystem to device with 8150 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8151 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8152 * information of the device and driver to see if the driver state that it 8153 * can support this kind of device. If the match is successful, the driver 8154 * core invokes this routine. If this routine determines it can claim the HBA, 8155 * it does all the initialization that it needs to do to handle the HBA 8156 * properly. 8157 * 8158 * Return code 8159 * 0 - driver can claim the device 8160 * negative value - driver can not claim the device 8161 **/ 8162static int __devinit 8163lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 8164{ 8165 struct lpfc_hba *phba; 8166 struct lpfc_vport *vport = NULL; 8167 struct Scsi_Host *shost = NULL; 8168 int error; 8169 uint32_t cfg_mode, intr_mode; 8170 int mcnt; 8171 8172 /* Allocate memory for HBA structure */ 8173 phba = lpfc_hba_alloc(pdev); 8174 if (!phba) 8175 return -ENOMEM; 8176 8177 /* Perform generic PCI device enabling operation */ 8178 error = lpfc_enable_pci_dev(phba); 8179 if (error) { 8180 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8181 "1409 Failed to enable pci device.\n"); 8182 goto out_free_phba; 8183 } 8184 8185 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 8186 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 8187 if (error) 8188 goto out_disable_pci_dev; 8189 8190 /* Set up SLI-4 specific device PCI memory space */ 8191 error = lpfc_sli4_pci_mem_setup(phba); 8192 if (error) { 8193 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8194 "1410 Failed to set up pci memory space.\n"); 8195 goto out_disable_pci_dev; 8196 } 8197 8198 /* Set up phase-1 common device driver resources */ 8199 error = lpfc_setup_driver_resource_phase1(phba); 8200 if (error) { 8201 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8202 "1411 Failed to set up driver resource.\n"); 8203 goto out_unset_pci_mem_s4; 8204 } 8205 8206 /* Set up SLI-4 Specific device driver resources */ 8207 error = lpfc_sli4_driver_resource_setup(phba); 8208 if (error) { 8209 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8210 "1412 Failed to set up driver resource.\n"); 8211 goto out_unset_pci_mem_s4; 8212 } 8213 8214 /* Initialize and populate the iocb list per host */ 8215 8216 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8217 "2821 initialize iocb list %d.\n", 8218 phba->cfg_iocb_cnt*1024); 8219 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 8220 8221 if (error) { 8222 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8223 "1413 Failed to initialize iocb list.\n"); 8224 goto out_unset_driver_resource_s4; 8225 } 8226 8227 INIT_LIST_HEAD(&phba->active_rrq_list); 8228 8229 /* Set up common device driver resources */ 8230 error = lpfc_setup_driver_resource_phase2(phba); 8231 if (error) { 8232 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8233 "1414 Failed to set up driver resource.\n"); 8234 goto out_free_iocb_list; 8235 } 8236 8237 /* Create SCSI host to the physical port */ 8238 error = lpfc_create_shost(phba); 8239 if (error) { 8240 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8241 "1415 Failed to create scsi host.\n"); 8242 goto out_unset_driver_resource; 8243 } 8244 8245 /* Configure sysfs attributes */ 8246 vport = phba->pport; 8247 error = lpfc_alloc_sysfs_attr(vport); 8248 if (error) { 8249 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8250 "1416 Failed to allocate sysfs attr\n"); 8251 goto out_destroy_shost; 8252 } 8253 8254 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8255 /* Now, trying to enable interrupt and bring up the device */ 8256 cfg_mode = phba->cfg_use_msi; 8257 while (true) { 8258 /* Put device to a known state before enabling interrupt */ 8259 lpfc_stop_port(phba); 8260 /* Configure and enable interrupt */ 8261 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 8262 if (intr_mode == LPFC_INTR_ERROR) { 8263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8264 "0426 Failed to enable interrupt.\n"); 8265 error = -ENODEV; 8266 goto out_free_sysfs_attr; 8267 } 8268 /* Default to single FCP EQ for non-MSI-X */ 8269 if (phba->intr_type != MSIX) 8270 phba->cfg_fcp_eq_count = 1; 8271 else if (phba->sli4_hba.msix_vec_nr < phba->cfg_fcp_eq_count) 8272 phba->cfg_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1; 8273 /* Set up SLI-4 HBA */ 8274 if (lpfc_sli4_hba_setup(phba)) { 8275 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8276 "1421 Failed to set up hba\n"); 8277 error = -ENODEV; 8278 goto out_disable_intr; 8279 } 8280 8281 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 8282 if (intr_mode != 0) 8283 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 8284 LPFC_ACT_INTR_CNT); 8285 8286 /* Check active interrupts received only for MSI/MSI-X */ 8287 if (intr_mode == 0 || 8288 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 8289 /* Log the current active interrupt mode */ 8290 phba->intr_mode = intr_mode; 8291 lpfc_log_intr_mode(phba, intr_mode); 8292 break; 8293 } 8294 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8295 "0451 Configure interrupt mode (%d) " 8296 "failed active interrupt test.\n", 8297 intr_mode); 8298 /* Unset the preivous SLI-4 HBA setup */ 8299 lpfc_sli4_unset_hba(phba); 8300 /* Try next level of interrupt mode */ 8301 cfg_mode = --intr_mode; 8302 } 8303 8304 /* Perform post initialization setup */ 8305 lpfc_post_init_setup(phba); 8306 8307 /* Check if there are static vports to be created. */ 8308 lpfc_create_static_vport(phba); 8309 8310 return 0; 8311 8312out_disable_intr: 8313 lpfc_sli4_disable_intr(phba); 8314out_free_sysfs_attr: 8315 lpfc_free_sysfs_attr(vport); 8316out_destroy_shost: 8317 lpfc_destroy_shost(phba); 8318out_unset_driver_resource: 8319 lpfc_unset_driver_resource_phase2(phba); 8320out_free_iocb_list: 8321 lpfc_free_iocb_list(phba); 8322out_unset_driver_resource_s4: 8323 lpfc_sli4_driver_resource_unset(phba); 8324out_unset_pci_mem_s4: 8325 lpfc_sli4_pci_mem_unset(phba); 8326out_disable_pci_dev: 8327 lpfc_disable_pci_dev(phba); 8328 if (shost) 8329 scsi_host_put(shost); 8330out_free_phba: 8331 lpfc_hba_free(phba); 8332 return error; 8333} 8334 8335/** 8336 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 8337 * @pdev: pointer to PCI device 8338 * 8339 * This routine is called from the kernel's PCI subsystem to device with 8340 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8341 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8342 * device to be removed from the PCI subsystem properly. 8343 **/ 8344static void __devexit 8345lpfc_pci_remove_one_s4(struct pci_dev *pdev) 8346{ 8347 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8348 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8349 struct lpfc_vport **vports; 8350 struct lpfc_hba *phba = vport->phba; 8351 int i; 8352 8353 /* Mark the device unloading flag */ 8354 spin_lock_irq(&phba->hbalock); 8355 vport->load_flag |= FC_UNLOADING; 8356 spin_unlock_irq(&phba->hbalock); 8357 8358 /* Free the HBA sysfs attributes */ 8359 lpfc_free_sysfs_attr(vport); 8360 8361 /* Release all the vports against this physical port */ 8362 vports = lpfc_create_vport_work_array(phba); 8363 if (vports != NULL) 8364 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 8365 fc_vport_terminate(vports[i]->fc_vport); 8366 lpfc_destroy_vport_work_array(phba, vports); 8367 8368 /* Remove FC host and then SCSI host with the physical port */ 8369 fc_remove_host(shost); 8370 scsi_remove_host(shost); 8371 8372 /* Perform cleanup on the physical port */ 8373 lpfc_cleanup(vport); 8374 8375 /* 8376 * Bring down the SLI Layer. This step disables all interrupts, 8377 * clears the rings, discards all mailbox commands, and resets 8378 * the HBA FCoE function. 8379 */ 8380 lpfc_debugfs_terminate(vport); 8381 lpfc_sli4_hba_unset(phba); 8382 8383 spin_lock_irq(&phba->hbalock); 8384 list_del_init(&vport->listentry); 8385 spin_unlock_irq(&phba->hbalock); 8386 8387 /* Perform scsi free before driver resource_unset since scsi 8388 * buffers are released to their corresponding pools here. 8389 */ 8390 lpfc_scsi_free(phba); 8391 lpfc_sli4_driver_resource_unset(phba); 8392 8393 /* Unmap adapter Control and Doorbell registers */ 8394 lpfc_sli4_pci_mem_unset(phba); 8395 8396 /* Release PCI resources and disable device's PCI function */ 8397 scsi_host_put(shost); 8398 lpfc_disable_pci_dev(phba); 8399 8400 /* Finally, free the driver's device data structure */ 8401 lpfc_hba_free(phba); 8402 8403 return; 8404} 8405 8406/** 8407 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 8408 * @pdev: pointer to PCI device 8409 * @msg: power management message 8410 * 8411 * This routine is called from the kernel's PCI subsystem to support system 8412 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 8413 * this method, it quiesces the device by stopping the driver's worker 8414 * thread for the device, turning off device's interrupt and DMA, and bring 8415 * the device offline. Note that as the driver implements the minimum PM 8416 * requirements to a power-aware driver's PM support for suspend/resume -- all 8417 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 8418 * method call will be treated as SUSPEND and the driver will fully 8419 * reinitialize its device during resume() method call, the driver will set 8420 * device to PCI_D3hot state in PCI config space instead of setting it 8421 * according to the @msg provided by the PM. 8422 * 8423 * Return code 8424 * 0 - driver suspended the device 8425 * Error otherwise 8426 **/ 8427static int 8428lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 8429{ 8430 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8431 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8432 8433 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8434 "2843 PCI device Power Management suspend.\n"); 8435 8436 /* Bring down the device */ 8437 lpfc_offline_prep(phba); 8438 lpfc_offline(phba); 8439 kthread_stop(phba->worker_thread); 8440 8441 /* Disable interrupt from device */ 8442 lpfc_sli4_disable_intr(phba); 8443 8444 /* Save device state to PCI config space */ 8445 pci_save_state(pdev); 8446 pci_set_power_state(pdev, PCI_D3hot); 8447 8448 return 0; 8449} 8450 8451/** 8452 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 8453 * @pdev: pointer to PCI device 8454 * 8455 * This routine is called from the kernel's PCI subsystem to support system 8456 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 8457 * this method, it restores the device's PCI config space state and fully 8458 * reinitializes the device and brings it online. Note that as the driver 8459 * implements the minimum PM requirements to a power-aware driver's PM for 8460 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8461 * to the suspend() method call will be treated as SUSPEND and the driver 8462 * will fully reinitialize its device during resume() method call, the device 8463 * will be set to PCI_D0 directly in PCI config space before restoring the 8464 * state. 8465 * 8466 * Return code 8467 * 0 - driver suspended the device 8468 * Error otherwise 8469 **/ 8470static int 8471lpfc_pci_resume_one_s4(struct pci_dev *pdev) 8472{ 8473 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8474 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8475 uint32_t intr_mode; 8476 int error; 8477 8478 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8479 "0292 PCI device Power Management resume.\n"); 8480 8481 /* Restore device state from PCI config space */ 8482 pci_set_power_state(pdev, PCI_D0); 8483 pci_restore_state(pdev); 8484 8485 /* 8486 * As the new kernel behavior of pci_restore_state() API call clears 8487 * device saved_state flag, need to save the restored state again. 8488 */ 8489 pci_save_state(pdev); 8490 8491 if (pdev->is_busmaster) 8492 pci_set_master(pdev); 8493 8494 /* Startup the kernel thread for this host adapter. */ 8495 phba->worker_thread = kthread_run(lpfc_do_work, phba, 8496 "lpfc_worker_%d", phba->brd_no); 8497 if (IS_ERR(phba->worker_thread)) { 8498 error = PTR_ERR(phba->worker_thread); 8499 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8500 "0293 PM resume failed to start worker " 8501 "thread: error=x%x.\n", error); 8502 return error; 8503 } 8504 8505 /* Configure and enable interrupt */ 8506 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 8507 if (intr_mode == LPFC_INTR_ERROR) { 8508 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8509 "0294 PM resume Failed to enable interrupt\n"); 8510 return -EIO; 8511 } else 8512 phba->intr_mode = intr_mode; 8513 8514 /* Restart HBA and bring it online */ 8515 lpfc_sli_brdrestart(phba); 8516 lpfc_online(phba); 8517 8518 /* Log the current active interrupt mode */ 8519 lpfc_log_intr_mode(phba, phba->intr_mode); 8520 8521 return 0; 8522} 8523 8524/** 8525 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 8526 * @phba: pointer to lpfc hba data structure. 8527 * 8528 * This routine is called to prepare the SLI4 device for PCI slot recover. It 8529 * aborts all the outstanding SCSI I/Os to the pci device. 8530 **/ 8531static void 8532lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 8533{ 8534 struct lpfc_sli *psli = &phba->sli; 8535 struct lpfc_sli_ring *pring; 8536 8537 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8538 "2828 PCI channel I/O abort preparing for recovery\n"); 8539 /* 8540 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 8541 * and let the SCSI mid-layer to retry them to recover. 8542 */ 8543 pring = &psli->ring[psli->fcp_ring]; 8544 lpfc_sli_abort_iocb_ring(phba, pring); 8545} 8546 8547/** 8548 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 8549 * @phba: pointer to lpfc hba data structure. 8550 * 8551 * This routine is called to prepare the SLI4 device for PCI slot reset. It 8552 * disables the device interrupt and pci device, and aborts the internal FCP 8553 * pending I/Os. 8554 **/ 8555static void 8556lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 8557{ 8558 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8559 "2826 PCI channel disable preparing for reset\n"); 8560 8561 /* Block any management I/Os to the device */ 8562 lpfc_block_mgmt_io(phba); 8563 8564 /* Block all SCSI devices' I/Os on the host */ 8565 lpfc_scsi_dev_block(phba); 8566 8567 /* stop all timers */ 8568 lpfc_stop_hba_timers(phba); 8569 8570 /* Disable interrupt and pci device */ 8571 lpfc_sli4_disable_intr(phba); 8572 pci_disable_device(phba->pcidev); 8573 8574 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 8575 lpfc_sli_flush_fcp_rings(phba); 8576} 8577 8578/** 8579 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 8580 * @phba: pointer to lpfc hba data structure. 8581 * 8582 * This routine is called to prepare the SLI4 device for PCI slot permanently 8583 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 8584 * pending I/Os. 8585 **/ 8586static void 8587lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 8588{ 8589 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8590 "2827 PCI channel permanent disable for failure\n"); 8591 8592 /* Block all SCSI devices' I/Os on the host */ 8593 lpfc_scsi_dev_block(phba); 8594 8595 /* stop all timers */ 8596 lpfc_stop_hba_timers(phba); 8597 8598 /* Clean up all driver's outstanding SCSI I/Os */ 8599 lpfc_sli_flush_fcp_rings(phba); 8600} 8601 8602/** 8603 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 8604 * @pdev: pointer to PCI device. 8605 * @state: the current PCI connection state. 8606 * 8607 * This routine is called from the PCI subsystem for error handling to device 8608 * with SLI-4 interface spec. This function is called by the PCI subsystem 8609 * after a PCI bus error affecting this device has been detected. When this 8610 * function is invoked, it will need to stop all the I/Os and interrupt(s) 8611 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 8612 * for the PCI subsystem to perform proper recovery as desired. 8613 * 8614 * Return codes 8615 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8616 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8617 **/ 8618static pci_ers_result_t 8619lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 8620{ 8621 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8622 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8623 8624 switch (state) { 8625 case pci_channel_io_normal: 8626 /* Non-fatal error, prepare for recovery */ 8627 lpfc_sli4_prep_dev_for_recover(phba); 8628 return PCI_ERS_RESULT_CAN_RECOVER; 8629 case pci_channel_io_frozen: 8630 /* Fatal error, prepare for slot reset */ 8631 lpfc_sli4_prep_dev_for_reset(phba); 8632 return PCI_ERS_RESULT_NEED_RESET; 8633 case pci_channel_io_perm_failure: 8634 /* Permanent failure, prepare for device down */ 8635 lpfc_sli4_prep_dev_for_perm_failure(phba); 8636 return PCI_ERS_RESULT_DISCONNECT; 8637 default: 8638 /* Unknown state, prepare and request slot reset */ 8639 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8640 "2825 Unknown PCI error state: x%x\n", state); 8641 lpfc_sli4_prep_dev_for_reset(phba); 8642 return PCI_ERS_RESULT_NEED_RESET; 8643 } 8644} 8645 8646/** 8647 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 8648 * @pdev: pointer to PCI device. 8649 * 8650 * This routine is called from the PCI subsystem for error handling to device 8651 * with SLI-4 interface spec. It is called after PCI bus has been reset to 8652 * restart the PCI card from scratch, as if from a cold-boot. During the 8653 * PCI subsystem error recovery, after the driver returns 8654 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 8655 * recovery and then call this routine before calling the .resume method to 8656 * recover the device. This function will initialize the HBA device, enable 8657 * the interrupt, but it will just put the HBA to offline state without 8658 * passing any I/O traffic. 8659 * 8660 * Return codes 8661 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8662 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8663 */ 8664static pci_ers_result_t 8665lpfc_io_slot_reset_s4(struct pci_dev *pdev) 8666{ 8667 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8668 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8669 struct lpfc_sli *psli = &phba->sli; 8670 uint32_t intr_mode; 8671 8672 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 8673 if (pci_enable_device_mem(pdev)) { 8674 printk(KERN_ERR "lpfc: Cannot re-enable " 8675 "PCI device after reset.\n"); 8676 return PCI_ERS_RESULT_DISCONNECT; 8677 } 8678 8679 pci_restore_state(pdev); 8680 if (pdev->is_busmaster) 8681 pci_set_master(pdev); 8682 8683 spin_lock_irq(&phba->hbalock); 8684 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 8685 spin_unlock_irq(&phba->hbalock); 8686 8687 /* Configure and enable interrupt */ 8688 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 8689 if (intr_mode == LPFC_INTR_ERROR) { 8690 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8691 "2824 Cannot re-enable interrupt after " 8692 "slot reset.\n"); 8693 return PCI_ERS_RESULT_DISCONNECT; 8694 } else 8695 phba->intr_mode = intr_mode; 8696 8697 /* Log the current active interrupt mode */ 8698 lpfc_log_intr_mode(phba, phba->intr_mode); 8699 8700 return PCI_ERS_RESULT_RECOVERED; 8701} 8702 8703/** 8704 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 8705 * @pdev: pointer to PCI device 8706 * 8707 * This routine is called from the PCI subsystem for error handling to device 8708 * with SLI-4 interface spec. It is called when kernel error recovery tells 8709 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8710 * error recovery. After this call, traffic can start to flow from this device 8711 * again. 8712 **/ 8713static void 8714lpfc_io_resume_s4(struct pci_dev *pdev) 8715{ 8716 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8717 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8718 8719 /* 8720 * In case of slot reset, as function reset is performed through 8721 * mailbox command which needs DMA to be enabled, this operation 8722 * has to be moved to the io resume phase. Taking device offline 8723 * will perform the necessary cleanup. 8724 */ 8725 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 8726 /* Perform device reset */ 8727 lpfc_offline_prep(phba); 8728 lpfc_offline(phba); 8729 lpfc_sli_brdrestart(phba); 8730 /* Bring the device back online */ 8731 lpfc_online(phba); 8732 } 8733 8734 /* Clean up Advanced Error Reporting (AER) if needed */ 8735 if (phba->hba_flag & HBA_AER_ENABLED) 8736 pci_cleanup_aer_uncorrect_error_status(pdev); 8737} 8738 8739/** 8740 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 8741 * @pdev: pointer to PCI device 8742 * @pid: pointer to PCI device identifier 8743 * 8744 * This routine is to be registered to the kernel's PCI subsystem. When an 8745 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 8746 * at PCI device-specific information of the device and driver to see if the 8747 * driver state that it can support this kind of device. If the match is 8748 * successful, the driver core invokes this routine. This routine dispatches 8749 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 8750 * do all the initialization that it needs to do to handle the HBA device 8751 * properly. 8752 * 8753 * Return code 8754 * 0 - driver can claim the device 8755 * negative value - driver can not claim the device 8756 **/ 8757static int __devinit 8758lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 8759{ 8760 int rc; 8761 struct lpfc_sli_intf intf; 8762 8763 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 8764 return -ENODEV; 8765 8766 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 8767 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 8768 rc = lpfc_pci_probe_one_s4(pdev, pid); 8769 else 8770 rc = lpfc_pci_probe_one_s3(pdev, pid); 8771 8772 return rc; 8773} 8774 8775/** 8776 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 8777 * @pdev: pointer to PCI device 8778 * 8779 * This routine is to be registered to the kernel's PCI subsystem. When an 8780 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 8781 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 8782 * remove routine, which will perform all the necessary cleanup for the 8783 * device to be removed from the PCI subsystem properly. 8784 **/ 8785static void __devexit 8786lpfc_pci_remove_one(struct pci_dev *pdev) 8787{ 8788 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8789 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8790 8791 switch (phba->pci_dev_grp) { 8792 case LPFC_PCI_DEV_LP: 8793 lpfc_pci_remove_one_s3(pdev); 8794 break; 8795 case LPFC_PCI_DEV_OC: 8796 lpfc_pci_remove_one_s4(pdev); 8797 break; 8798 default: 8799 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8800 "1424 Invalid PCI device group: 0x%x\n", 8801 phba->pci_dev_grp); 8802 break; 8803 } 8804 return; 8805} 8806 8807/** 8808 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 8809 * @pdev: pointer to PCI device 8810 * @msg: power management message 8811 * 8812 * This routine is to be registered to the kernel's PCI subsystem to support 8813 * system Power Management (PM). When PM invokes this method, it dispatches 8814 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 8815 * suspend the device. 8816 * 8817 * Return code 8818 * 0 - driver suspended the device 8819 * Error otherwise 8820 **/ 8821static int 8822lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 8823{ 8824 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8825 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8826 int rc = -ENODEV; 8827 8828 switch (phba->pci_dev_grp) { 8829 case LPFC_PCI_DEV_LP: 8830 rc = lpfc_pci_suspend_one_s3(pdev, msg); 8831 break; 8832 case LPFC_PCI_DEV_OC: 8833 rc = lpfc_pci_suspend_one_s4(pdev, msg); 8834 break; 8835 default: 8836 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8837 "1425 Invalid PCI device group: 0x%x\n", 8838 phba->pci_dev_grp); 8839 break; 8840 } 8841 return rc; 8842} 8843 8844/** 8845 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 8846 * @pdev: pointer to PCI device 8847 * 8848 * This routine is to be registered to the kernel's PCI subsystem to support 8849 * system Power Management (PM). When PM invokes this method, it dispatches 8850 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 8851 * resume the device. 8852 * 8853 * Return code 8854 * 0 - driver suspended the device 8855 * Error otherwise 8856 **/ 8857static int 8858lpfc_pci_resume_one(struct pci_dev *pdev) 8859{ 8860 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8861 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8862 int rc = -ENODEV; 8863 8864 switch (phba->pci_dev_grp) { 8865 case LPFC_PCI_DEV_LP: 8866 rc = lpfc_pci_resume_one_s3(pdev); 8867 break; 8868 case LPFC_PCI_DEV_OC: 8869 rc = lpfc_pci_resume_one_s4(pdev); 8870 break; 8871 default: 8872 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8873 "1426 Invalid PCI device group: 0x%x\n", 8874 phba->pci_dev_grp); 8875 break; 8876 } 8877 return rc; 8878} 8879 8880/** 8881 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 8882 * @pdev: pointer to PCI device. 8883 * @state: the current PCI connection state. 8884 * 8885 * This routine is registered to the PCI subsystem for error handling. This 8886 * function is called by the PCI subsystem after a PCI bus error affecting 8887 * this device has been detected. When this routine is invoked, it dispatches 8888 * the action to the proper SLI-3 or SLI-4 device error detected handling 8889 * routine, which will perform the proper error detected operation. 8890 * 8891 * Return codes 8892 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8893 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8894 **/ 8895static pci_ers_result_t 8896lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 8897{ 8898 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8899 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8900 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 8901 8902 switch (phba->pci_dev_grp) { 8903 case LPFC_PCI_DEV_LP: 8904 rc = lpfc_io_error_detected_s3(pdev, state); 8905 break; 8906 case LPFC_PCI_DEV_OC: 8907 rc = lpfc_io_error_detected_s4(pdev, state); 8908 break; 8909 default: 8910 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8911 "1427 Invalid PCI device group: 0x%x\n", 8912 phba->pci_dev_grp); 8913 break; 8914 } 8915 return rc; 8916} 8917 8918/** 8919 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 8920 * @pdev: pointer to PCI device. 8921 * 8922 * This routine is registered to the PCI subsystem for error handling. This 8923 * function is called after PCI bus has been reset to restart the PCI card 8924 * from scratch, as if from a cold-boot. When this routine is invoked, it 8925 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 8926 * routine, which will perform the proper device reset. 8927 * 8928 * Return codes 8929 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8930 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8931 **/ 8932static pci_ers_result_t 8933lpfc_io_slot_reset(struct pci_dev *pdev) 8934{ 8935 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8936 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8937 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 8938 8939 switch (phba->pci_dev_grp) { 8940 case LPFC_PCI_DEV_LP: 8941 rc = lpfc_io_slot_reset_s3(pdev); 8942 break; 8943 case LPFC_PCI_DEV_OC: 8944 rc = lpfc_io_slot_reset_s4(pdev); 8945 break; 8946 default: 8947 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8948 "1428 Invalid PCI device group: 0x%x\n", 8949 phba->pci_dev_grp); 8950 break; 8951 } 8952 return rc; 8953} 8954 8955/** 8956 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 8957 * @pdev: pointer to PCI device 8958 * 8959 * This routine is registered to the PCI subsystem for error handling. It 8960 * is called when kernel error recovery tells the lpfc driver that it is 8961 * OK to resume normal PCI operation after PCI bus error recovery. When 8962 * this routine is invoked, it dispatches the action to the proper SLI-3 8963 * or SLI-4 device io_resume routine, which will resume the device operation. 8964 **/ 8965static void 8966lpfc_io_resume(struct pci_dev *pdev) 8967{ 8968 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8969 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8970 8971 switch (phba->pci_dev_grp) { 8972 case LPFC_PCI_DEV_LP: 8973 lpfc_io_resume_s3(pdev); 8974 break; 8975 case LPFC_PCI_DEV_OC: 8976 lpfc_io_resume_s4(pdev); 8977 break; 8978 default: 8979 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8980 "1429 Invalid PCI device group: 0x%x\n", 8981 phba->pci_dev_grp); 8982 break; 8983 } 8984 return; 8985} 8986 8987static struct pci_device_id lpfc_id_table[] = { 8988 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 8989 PCI_ANY_ID, PCI_ANY_ID, }, 8990 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 8991 PCI_ANY_ID, PCI_ANY_ID, }, 8992 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 8993 PCI_ANY_ID, PCI_ANY_ID, }, 8994 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 8995 PCI_ANY_ID, PCI_ANY_ID, }, 8996 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 8997 PCI_ANY_ID, PCI_ANY_ID, }, 8998 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 8999 PCI_ANY_ID, PCI_ANY_ID, }, 9000 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 9001 PCI_ANY_ID, PCI_ANY_ID, }, 9002 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 9003 PCI_ANY_ID, PCI_ANY_ID, }, 9004 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 9005 PCI_ANY_ID, PCI_ANY_ID, }, 9006 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 9007 PCI_ANY_ID, PCI_ANY_ID, }, 9008 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 9009 PCI_ANY_ID, PCI_ANY_ID, }, 9010 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 9011 PCI_ANY_ID, PCI_ANY_ID, }, 9012 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 9013 PCI_ANY_ID, PCI_ANY_ID, }, 9014 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 9015 PCI_ANY_ID, PCI_ANY_ID, }, 9016 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 9017 PCI_ANY_ID, PCI_ANY_ID, }, 9018 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 9019 PCI_ANY_ID, PCI_ANY_ID, }, 9020 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 9021 PCI_ANY_ID, PCI_ANY_ID, }, 9022 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 9023 PCI_ANY_ID, PCI_ANY_ID, }, 9024 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 9025 PCI_ANY_ID, PCI_ANY_ID, }, 9026 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 9027 PCI_ANY_ID, PCI_ANY_ID, }, 9028 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 9029 PCI_ANY_ID, PCI_ANY_ID, }, 9030 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 9031 PCI_ANY_ID, PCI_ANY_ID, }, 9032 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 9033 PCI_ANY_ID, PCI_ANY_ID, }, 9034 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 9035 PCI_ANY_ID, PCI_ANY_ID, }, 9036 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 9037 PCI_ANY_ID, PCI_ANY_ID, }, 9038 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 9039 PCI_ANY_ID, PCI_ANY_ID, }, 9040 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 9041 PCI_ANY_ID, PCI_ANY_ID, }, 9042 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 9043 PCI_ANY_ID, PCI_ANY_ID, }, 9044 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 9045 PCI_ANY_ID, PCI_ANY_ID, }, 9046 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 9047 PCI_ANY_ID, PCI_ANY_ID, }, 9048 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 9049 PCI_ANY_ID, PCI_ANY_ID, }, 9050 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 9051 PCI_ANY_ID, PCI_ANY_ID, }, 9052 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 9053 PCI_ANY_ID, PCI_ANY_ID, }, 9054 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 9055 PCI_ANY_ID, PCI_ANY_ID, }, 9056 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 9057 PCI_ANY_ID, PCI_ANY_ID, }, 9058 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 9059 PCI_ANY_ID, PCI_ANY_ID, }, 9060 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 9061 PCI_ANY_ID, PCI_ANY_ID, }, 9062 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 9063 PCI_ANY_ID, PCI_ANY_ID, }, 9064 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 9065 PCI_ANY_ID, PCI_ANY_ID, }, 9066 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 9067 PCI_ANY_ID, PCI_ANY_ID, }, 9068 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 9069 PCI_ANY_ID, PCI_ANY_ID, }, 9070 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, 9071 PCI_ANY_ID, PCI_ANY_ID, }, 9072 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, 9073 PCI_ANY_ID, PCI_ANY_ID, }, 9074 { 0 } 9075}; 9076 9077MODULE_DEVICE_TABLE(pci, lpfc_id_table); 9078 9079static struct pci_error_handlers lpfc_err_handler = { 9080 .error_detected = lpfc_io_error_detected, 9081 .slot_reset = lpfc_io_slot_reset, 9082 .resume = lpfc_io_resume, 9083}; 9084 9085static struct pci_driver lpfc_driver = { 9086 .name = LPFC_DRIVER_NAME, 9087 .id_table = lpfc_id_table, 9088 .probe = lpfc_pci_probe_one, 9089 .remove = __devexit_p(lpfc_pci_remove_one), 9090 .suspend = lpfc_pci_suspend_one, 9091 .resume = lpfc_pci_resume_one, 9092 .err_handler = &lpfc_err_handler, 9093}; 9094 9095/** 9096 * lpfc_init - lpfc module initialization routine 9097 * 9098 * This routine is to be invoked when the lpfc module is loaded into the 9099 * kernel. The special kernel macro module_init() is used to indicate the 9100 * role of this routine to the kernel as lpfc module entry point. 9101 * 9102 * Return codes 9103 * 0 - successful 9104 * -ENOMEM - FC attach transport failed 9105 * all others - failed 9106 */ 9107static int __init 9108lpfc_init(void) 9109{ 9110 int error = 0; 9111 9112 printk(LPFC_MODULE_DESC "\n"); 9113 printk(LPFC_COPYRIGHT "\n"); 9114 9115 if (lpfc_enable_npiv) { 9116 lpfc_transport_functions.vport_create = lpfc_vport_create; 9117 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 9118 } 9119 lpfc_transport_template = 9120 fc_attach_transport(&lpfc_transport_functions); 9121 if (lpfc_transport_template == NULL) 9122 return -ENOMEM; 9123 if (lpfc_enable_npiv) { 9124 lpfc_vport_transport_template = 9125 fc_attach_transport(&lpfc_vport_transport_functions); 9126 if (lpfc_vport_transport_template == NULL) { 9127 fc_release_transport(lpfc_transport_template); 9128 return -ENOMEM; 9129 } 9130 } 9131 error = pci_register_driver(&lpfc_driver); 9132 if (error) { 9133 fc_release_transport(lpfc_transport_template); 9134 if (lpfc_enable_npiv) 9135 fc_release_transport(lpfc_vport_transport_template); 9136 } 9137 9138 return error; 9139} 9140 9141/** 9142 * lpfc_exit - lpfc module removal routine 9143 * 9144 * This routine is invoked when the lpfc module is removed from the kernel. 9145 * The special kernel macro module_exit() is used to indicate the role of 9146 * this routine to the kernel as lpfc module exit point. 9147 */ 9148static void __exit 9149lpfc_exit(void) 9150{ 9151 pci_unregister_driver(&lpfc_driver); 9152 fc_release_transport(lpfc_transport_template); 9153 if (lpfc_enable_npiv) 9154 fc_release_transport(lpfc_vport_transport_template); 9155 if (_dump_buf_data) { 9156 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 9157 "_dump_buf_data at 0x%p\n", 9158 (1L << _dump_buf_data_order), _dump_buf_data); 9159 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 9160 } 9161 9162 if (_dump_buf_dif) { 9163 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 9164 "_dump_buf_dif at 0x%p\n", 9165 (1L << _dump_buf_dif_order), _dump_buf_dif); 9166 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 9167 } 9168} 9169 9170module_init(lpfc_init); 9171module_exit(lpfc_exit); 9172MODULE_LICENSE("GPL"); 9173MODULE_DESCRIPTION(LPFC_MODULE_DESC); 9174MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 9175MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 9176