lpfc_init.c revision c0c1151276aae83dffbe3f2837a3b1d893894115
1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2011 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_update_vport_wwn - Updates the fc_nodename, fc_portname, 313 * cfg_soft_wwnn, cfg_soft_wwpn 314 * @vport: pointer to lpfc vport data structure. 315 * 316 * 317 * Return codes 318 * None. 319 **/ 320void 321lpfc_update_vport_wwn(struct lpfc_vport *vport) 322{ 323 /* If the soft name exists then update it using the service params */ 324 if (vport->phba->cfg_soft_wwnn) 325 u64_to_wwn(vport->phba->cfg_soft_wwnn, 326 vport->fc_sparam.nodeName.u.wwn); 327 if (vport->phba->cfg_soft_wwpn) 328 u64_to_wwn(vport->phba->cfg_soft_wwpn, 329 vport->fc_sparam.portName.u.wwn); 330 331 /* 332 * If the name is empty or there exists a soft name 333 * then copy the service params name, otherwise use the fc name 334 */ 335 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 336 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 337 sizeof(struct lpfc_name)); 338 else 339 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 340 sizeof(struct lpfc_name)); 341 342 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn) 343 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 344 sizeof(struct lpfc_name)); 345 else 346 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 347 sizeof(struct lpfc_name)); 348} 349 350/** 351 * lpfc_config_port_post - Perform lpfc initialization after config port 352 * @phba: pointer to lpfc hba data structure. 353 * 354 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 355 * command call. It performs all internal resource and state setups on the 356 * port: post IOCB buffers, enable appropriate host interrupt attentions, 357 * ELS ring timers, etc. 358 * 359 * Return codes 360 * 0 - success. 361 * Any other value - error. 362 **/ 363int 364lpfc_config_port_post(struct lpfc_hba *phba) 365{ 366 struct lpfc_vport *vport = phba->pport; 367 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 368 LPFC_MBOXQ_t *pmb; 369 MAILBOX_t *mb; 370 struct lpfc_dmabuf *mp; 371 struct lpfc_sli *psli = &phba->sli; 372 uint32_t status, timeout; 373 int i, j; 374 int rc; 375 376 spin_lock_irq(&phba->hbalock); 377 /* 378 * If the Config port completed correctly the HBA is not 379 * over heated any more. 380 */ 381 if (phba->over_temp_state == HBA_OVER_TEMP) 382 phba->over_temp_state = HBA_NORMAL_TEMP; 383 spin_unlock_irq(&phba->hbalock); 384 385 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 386 if (!pmb) { 387 phba->link_state = LPFC_HBA_ERROR; 388 return -ENOMEM; 389 } 390 mb = &pmb->u.mb; 391 392 /* Get login parameters for NID. */ 393 rc = lpfc_read_sparam(phba, pmb, 0); 394 if (rc) { 395 mempool_free(pmb, phba->mbox_mem_pool); 396 return -ENOMEM; 397 } 398 399 pmb->vport = vport; 400 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 401 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 402 "0448 Adapter failed init, mbxCmd x%x " 403 "READ_SPARM mbxStatus x%x\n", 404 mb->mbxCommand, mb->mbxStatus); 405 phba->link_state = LPFC_HBA_ERROR; 406 mp = (struct lpfc_dmabuf *) pmb->context1; 407 mempool_free(pmb, phba->mbox_mem_pool); 408 lpfc_mbuf_free(phba, mp->virt, mp->phys); 409 kfree(mp); 410 return -EIO; 411 } 412 413 mp = (struct lpfc_dmabuf *) pmb->context1; 414 415 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 416 lpfc_mbuf_free(phba, mp->virt, mp->phys); 417 kfree(mp); 418 pmb->context1 = NULL; 419 lpfc_update_vport_wwn(vport); 420 421 /* Update the fc_host data structures with new wwn. */ 422 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 423 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 424 fc_host_max_npiv_vports(shost) = phba->max_vpi; 425 426 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 427 /* This should be consolidated into parse_vpd ? - mr */ 428 if (phba->SerialNumber[0] == 0) { 429 uint8_t *outptr; 430 431 outptr = &vport->fc_nodename.u.s.IEEE[0]; 432 for (i = 0; i < 12; i++) { 433 status = *outptr++; 434 j = ((status & 0xf0) >> 4); 435 if (j <= 9) 436 phba->SerialNumber[i] = 437 (char)((uint8_t) 0x30 + (uint8_t) j); 438 else 439 phba->SerialNumber[i] = 440 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 441 i++; 442 j = (status & 0xf); 443 if (j <= 9) 444 phba->SerialNumber[i] = 445 (char)((uint8_t) 0x30 + (uint8_t) j); 446 else 447 phba->SerialNumber[i] = 448 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 449 } 450 } 451 452 lpfc_read_config(phba, pmb); 453 pmb->vport = vport; 454 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 456 "0453 Adapter failed to init, mbxCmd x%x " 457 "READ_CONFIG, mbxStatus x%x\n", 458 mb->mbxCommand, mb->mbxStatus); 459 phba->link_state = LPFC_HBA_ERROR; 460 mempool_free( pmb, phba->mbox_mem_pool); 461 return -EIO; 462 } 463 464 /* Check if the port is disabled */ 465 lpfc_sli_read_link_ste(phba); 466 467 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 468 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 469 phba->cfg_hba_queue_depth = 470 (mb->un.varRdConfig.max_xri + 1) - 471 lpfc_sli4_get_els_iocb_cnt(phba); 472 473 phba->lmt = mb->un.varRdConfig.lmt; 474 475 /* Get the default values for Model Name and Description */ 476 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 477 478 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G) 479 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) 480 && !(phba->lmt & LMT_1Gb)) 481 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) 482 && !(phba->lmt & LMT_2Gb)) 483 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) 484 && !(phba->lmt & LMT_4Gb)) 485 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) 486 && !(phba->lmt & LMT_8Gb)) 487 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) 488 && !(phba->lmt & LMT_10Gb)) 489 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) 490 && !(phba->lmt & LMT_16Gb))) { 491 /* Reset link speed to auto */ 492 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 493 "1302 Invalid speed for this board: " 494 "Reset link speed to auto: x%x\n", 495 phba->cfg_link_speed); 496 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 497 } 498 499 phba->link_state = LPFC_LINK_DOWN; 500 501 /* Only process IOCBs on ELS ring till hba_state is READY */ 502 if (psli->ring[psli->extra_ring].cmdringaddr) 503 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 504 if (psli->ring[psli->fcp_ring].cmdringaddr) 505 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 506 if (psli->ring[psli->next_ring].cmdringaddr) 507 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 508 509 /* Post receive buffers for desired rings */ 510 if (phba->sli_rev != 3) 511 lpfc_post_rcv_buf(phba); 512 513 /* 514 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 515 */ 516 if (phba->intr_type == MSIX) { 517 rc = lpfc_config_msi(phba, pmb); 518 if (rc) { 519 mempool_free(pmb, phba->mbox_mem_pool); 520 return -EIO; 521 } 522 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 523 if (rc != MBX_SUCCESS) { 524 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 525 "0352 Config MSI mailbox command " 526 "failed, mbxCmd x%x, mbxStatus x%x\n", 527 pmb->u.mb.mbxCommand, 528 pmb->u.mb.mbxStatus); 529 mempool_free(pmb, phba->mbox_mem_pool); 530 return -EIO; 531 } 532 } 533 534 spin_lock_irq(&phba->hbalock); 535 /* Initialize ERATT handling flag */ 536 phba->hba_flag &= ~HBA_ERATT_HANDLED; 537 538 /* Enable appropriate host interrupts */ 539 if (lpfc_readl(phba->HCregaddr, &status)) { 540 spin_unlock_irq(&phba->hbalock); 541 return -EIO; 542 } 543 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 544 if (psli->num_rings > 0) 545 status |= HC_R0INT_ENA; 546 if (psli->num_rings > 1) 547 status |= HC_R1INT_ENA; 548 if (psli->num_rings > 2) 549 status |= HC_R2INT_ENA; 550 if (psli->num_rings > 3) 551 status |= HC_R3INT_ENA; 552 553 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 554 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 555 status &= ~(HC_R0INT_ENA); 556 557 writel(status, phba->HCregaddr); 558 readl(phba->HCregaddr); /* flush */ 559 spin_unlock_irq(&phba->hbalock); 560 561 /* Set up ring-0 (ELS) timer */ 562 timeout = phba->fc_ratov * 2; 563 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 564 /* Set up heart beat (HB) timer */ 565 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 566 phba->hb_outstanding = 0; 567 phba->last_completion_time = jiffies; 568 /* Set up error attention (ERATT) polling timer */ 569 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 570 571 if (phba->hba_flag & LINK_DISABLED) { 572 lpfc_printf_log(phba, 573 KERN_ERR, LOG_INIT, 574 "2598 Adapter Link is disabled.\n"); 575 lpfc_down_link(phba, pmb); 576 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 577 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 578 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 579 lpfc_printf_log(phba, 580 KERN_ERR, LOG_INIT, 581 "2599 Adapter failed to issue DOWN_LINK" 582 " mbox command rc 0x%x\n", rc); 583 584 mempool_free(pmb, phba->mbox_mem_pool); 585 return -EIO; 586 } 587 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 588 lpfc_init_link(phba, pmb, phba->cfg_topology, 589 phba->cfg_link_speed); 590 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 591 lpfc_set_loopback_flag(phba); 592 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 593 if (rc != MBX_SUCCESS) { 594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 595 "0454 Adapter failed to init, mbxCmd x%x " 596 "INIT_LINK, mbxStatus x%x\n", 597 mb->mbxCommand, mb->mbxStatus); 598 599 /* Clear all interrupt enable conditions */ 600 writel(0, phba->HCregaddr); 601 readl(phba->HCregaddr); /* flush */ 602 /* Clear all pending interrupts */ 603 writel(0xffffffff, phba->HAregaddr); 604 readl(phba->HAregaddr); /* flush */ 605 606 phba->link_state = LPFC_HBA_ERROR; 607 if (rc != MBX_BUSY) 608 mempool_free(pmb, phba->mbox_mem_pool); 609 return -EIO; 610 } 611 } 612 /* MBOX buffer will be freed in mbox compl */ 613 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 614 if (!pmb) { 615 phba->link_state = LPFC_HBA_ERROR; 616 return -ENOMEM; 617 } 618 619 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 620 pmb->mbox_cmpl = lpfc_config_async_cmpl; 621 pmb->vport = phba->pport; 622 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 623 624 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 625 lpfc_printf_log(phba, 626 KERN_ERR, 627 LOG_INIT, 628 "0456 Adapter failed to issue " 629 "ASYNCEVT_ENABLE mbox status x%x\n", 630 rc); 631 mempool_free(pmb, phba->mbox_mem_pool); 632 } 633 634 /* Get Option rom version */ 635 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 636 if (!pmb) { 637 phba->link_state = LPFC_HBA_ERROR; 638 return -ENOMEM; 639 } 640 641 lpfc_dump_wakeup_param(phba, pmb); 642 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 643 pmb->vport = phba->pport; 644 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 645 646 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 647 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 648 "to get Option ROM version status x%x\n", rc); 649 mempool_free(pmb, phba->mbox_mem_pool); 650 } 651 652 return 0; 653} 654 655/** 656 * lpfc_hba_init_link - Initialize the FC link 657 * @phba: pointer to lpfc hba data structure. 658 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 659 * 660 * This routine will issue the INIT_LINK mailbox command call. 661 * It is available to other drivers through the lpfc_hba data 662 * structure for use as a delayed link up mechanism with the 663 * module parameter lpfc_suppress_link_up. 664 * 665 * Return code 666 * 0 - success 667 * Any other value - error 668 **/ 669int 670lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 671{ 672 struct lpfc_vport *vport = phba->pport; 673 LPFC_MBOXQ_t *pmb; 674 MAILBOX_t *mb; 675 int rc; 676 677 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 678 if (!pmb) { 679 phba->link_state = LPFC_HBA_ERROR; 680 return -ENOMEM; 681 } 682 mb = &pmb->u.mb; 683 pmb->vport = vport; 684 685 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed); 686 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 687 lpfc_set_loopback_flag(phba); 688 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 689 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 690 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 691 "0498 Adapter failed to init, mbxCmd x%x " 692 "INIT_LINK, mbxStatus x%x\n", 693 mb->mbxCommand, mb->mbxStatus); 694 if (phba->sli_rev <= LPFC_SLI_REV3) { 695 /* Clear all interrupt enable conditions */ 696 writel(0, phba->HCregaddr); 697 readl(phba->HCregaddr); /* flush */ 698 /* Clear all pending interrupts */ 699 writel(0xffffffff, phba->HAregaddr); 700 readl(phba->HAregaddr); /* flush */ 701 } 702 phba->link_state = LPFC_HBA_ERROR; 703 if (rc != MBX_BUSY || flag == MBX_POLL) 704 mempool_free(pmb, phba->mbox_mem_pool); 705 return -EIO; 706 } 707 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 708 if (flag == MBX_POLL) 709 mempool_free(pmb, phba->mbox_mem_pool); 710 711 return 0; 712} 713 714/** 715 * lpfc_hba_down_link - this routine downs the FC link 716 * @phba: pointer to lpfc hba data structure. 717 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 718 * 719 * This routine will issue the DOWN_LINK mailbox command call. 720 * It is available to other drivers through the lpfc_hba data 721 * structure for use to stop the link. 722 * 723 * Return code 724 * 0 - success 725 * Any other value - error 726 **/ 727int 728lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 729{ 730 LPFC_MBOXQ_t *pmb; 731 int rc; 732 733 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 734 if (!pmb) { 735 phba->link_state = LPFC_HBA_ERROR; 736 return -ENOMEM; 737 } 738 739 lpfc_printf_log(phba, 740 KERN_ERR, LOG_INIT, 741 "0491 Adapter Link is disabled.\n"); 742 lpfc_down_link(phba, pmb); 743 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 744 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 745 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 746 lpfc_printf_log(phba, 747 KERN_ERR, LOG_INIT, 748 "2522 Adapter failed to issue DOWN_LINK" 749 " mbox command rc 0x%x\n", rc); 750 751 mempool_free(pmb, phba->mbox_mem_pool); 752 return -EIO; 753 } 754 if (flag == MBX_POLL) 755 mempool_free(pmb, phba->mbox_mem_pool); 756 757 return 0; 758} 759 760/** 761 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 762 * @phba: pointer to lpfc HBA data structure. 763 * 764 * This routine will do LPFC uninitialization before the HBA is reset when 765 * bringing down the SLI Layer. 766 * 767 * Return codes 768 * 0 - success. 769 * Any other value - error. 770 **/ 771int 772lpfc_hba_down_prep(struct lpfc_hba *phba) 773{ 774 struct lpfc_vport **vports; 775 int i; 776 777 if (phba->sli_rev <= LPFC_SLI_REV3) { 778 /* Disable interrupts */ 779 writel(0, phba->HCregaddr); 780 readl(phba->HCregaddr); /* flush */ 781 } 782 783 if (phba->pport->load_flag & FC_UNLOADING) 784 lpfc_cleanup_discovery_resources(phba->pport); 785 else { 786 vports = lpfc_create_vport_work_array(phba); 787 if (vports != NULL) 788 for (i = 0; i <= phba->max_vports && 789 vports[i] != NULL; i++) 790 lpfc_cleanup_discovery_resources(vports[i]); 791 lpfc_destroy_vport_work_array(phba, vports); 792 } 793 return 0; 794} 795 796/** 797 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 798 * @phba: pointer to lpfc HBA data structure. 799 * 800 * This routine will do uninitialization after the HBA is reset when bring 801 * down the SLI Layer. 802 * 803 * Return codes 804 * 0 - success. 805 * Any other value - error. 806 **/ 807static int 808lpfc_hba_down_post_s3(struct lpfc_hba *phba) 809{ 810 struct lpfc_sli *psli = &phba->sli; 811 struct lpfc_sli_ring *pring; 812 struct lpfc_dmabuf *mp, *next_mp; 813 LIST_HEAD(completions); 814 int i; 815 816 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 817 lpfc_sli_hbqbuf_free_all(phba); 818 else { 819 /* Cleanup preposted buffers on the ELS ring */ 820 pring = &psli->ring[LPFC_ELS_RING]; 821 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 822 list_del(&mp->list); 823 pring->postbufq_cnt--; 824 lpfc_mbuf_free(phba, mp->virt, mp->phys); 825 kfree(mp); 826 } 827 } 828 829 spin_lock_irq(&phba->hbalock); 830 for (i = 0; i < psli->num_rings; i++) { 831 pring = &psli->ring[i]; 832 833 /* At this point in time the HBA is either reset or DOA. Either 834 * way, nothing should be on txcmplq as it will NEVER complete. 835 */ 836 list_splice_init(&pring->txcmplq, &completions); 837 pring->txcmplq_cnt = 0; 838 spin_unlock_irq(&phba->hbalock); 839 840 /* Cancel all the IOCBs from the completions list */ 841 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 842 IOERR_SLI_ABORTED); 843 844 lpfc_sli_abort_iocb_ring(phba, pring); 845 spin_lock_irq(&phba->hbalock); 846 } 847 spin_unlock_irq(&phba->hbalock); 848 849 return 0; 850} 851 852/** 853 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 854 * @phba: pointer to lpfc HBA data structure. 855 * 856 * This routine will do uninitialization after the HBA is reset when bring 857 * down the SLI Layer. 858 * 859 * Return codes 860 * 0 - success. 861 * Any other value - error. 862 **/ 863static int 864lpfc_hba_down_post_s4(struct lpfc_hba *phba) 865{ 866 struct lpfc_scsi_buf *psb, *psb_next; 867 LIST_HEAD(aborts); 868 int ret; 869 unsigned long iflag = 0; 870 struct lpfc_sglq *sglq_entry = NULL; 871 872 ret = lpfc_hba_down_post_s3(phba); 873 if (ret) 874 return ret; 875 /* At this point in time the HBA is either reset or DOA. Either 876 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 877 * on the lpfc_sgl_list so that it can either be freed if the 878 * driver is unloading or reposted if the driver is restarting 879 * the port. 880 */ 881 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 882 /* scsl_buf_list */ 883 /* abts_sgl_list_lock required because worker thread uses this 884 * list. 885 */ 886 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 887 list_for_each_entry(sglq_entry, 888 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 889 sglq_entry->state = SGL_FREED; 890 891 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 892 &phba->sli4_hba.lpfc_sgl_list); 893 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 894 /* abts_scsi_buf_list_lock required because worker thread uses this 895 * list. 896 */ 897 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 898 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 899 &aborts); 900 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 901 spin_unlock_irq(&phba->hbalock); 902 903 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 904 psb->pCmd = NULL; 905 psb->status = IOSTAT_SUCCESS; 906 } 907 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 908 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 909 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 910 return 0; 911} 912 913/** 914 * lpfc_hba_down_post - Wrapper func for hba down post routine 915 * @phba: pointer to lpfc HBA data structure. 916 * 917 * This routine wraps the actual SLI3 or SLI4 routine for performing 918 * uninitialization after the HBA is reset when bring down the SLI Layer. 919 * 920 * Return codes 921 * 0 - success. 922 * Any other value - error. 923 **/ 924int 925lpfc_hba_down_post(struct lpfc_hba *phba) 926{ 927 return (*phba->lpfc_hba_down_post)(phba); 928} 929 930/** 931 * lpfc_hb_timeout - The HBA-timer timeout handler 932 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 933 * 934 * This is the HBA-timer timeout handler registered to the lpfc driver. When 935 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 936 * work-port-events bitmap and the worker thread is notified. This timeout 937 * event will be used by the worker thread to invoke the actual timeout 938 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 939 * be performed in the timeout handler and the HBA timeout event bit shall 940 * be cleared by the worker thread after it has taken the event bitmap out. 941 **/ 942static void 943lpfc_hb_timeout(unsigned long ptr) 944{ 945 struct lpfc_hba *phba; 946 uint32_t tmo_posted; 947 unsigned long iflag; 948 949 phba = (struct lpfc_hba *)ptr; 950 951 /* Check for heart beat timeout conditions */ 952 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 953 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 954 if (!tmo_posted) 955 phba->pport->work_port_events |= WORKER_HB_TMO; 956 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 957 958 /* Tell the worker thread there is work to do */ 959 if (!tmo_posted) 960 lpfc_worker_wake_up(phba); 961 return; 962} 963 964/** 965 * lpfc_rrq_timeout - The RRQ-timer timeout handler 966 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 967 * 968 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 969 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 970 * work-port-events bitmap and the worker thread is notified. This timeout 971 * event will be used by the worker thread to invoke the actual timeout 972 * handler routine, lpfc_rrq_handler. Any periodical operations will 973 * be performed in the timeout handler and the RRQ timeout event bit shall 974 * be cleared by the worker thread after it has taken the event bitmap out. 975 **/ 976static void 977lpfc_rrq_timeout(unsigned long ptr) 978{ 979 struct lpfc_hba *phba; 980 unsigned long iflag; 981 982 phba = (struct lpfc_hba *)ptr; 983 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 984 phba->hba_flag |= HBA_RRQ_ACTIVE; 985 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 986 lpfc_worker_wake_up(phba); 987} 988 989/** 990 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 991 * @phba: pointer to lpfc hba data structure. 992 * @pmboxq: pointer to the driver internal queue element for mailbox command. 993 * 994 * This is the callback function to the lpfc heart-beat mailbox command. 995 * If configured, the lpfc driver issues the heart-beat mailbox command to 996 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 997 * heart-beat mailbox command is issued, the driver shall set up heart-beat 998 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 999 * heart-beat outstanding state. Once the mailbox command comes back and 1000 * no error conditions detected, the heart-beat mailbox command timer is 1001 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1002 * state is cleared for the next heart-beat. If the timer expired with the 1003 * heart-beat outstanding state set, the driver will put the HBA offline. 1004 **/ 1005static void 1006lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1007{ 1008 unsigned long drvr_flag; 1009 1010 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1011 phba->hb_outstanding = 0; 1012 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1013 1014 /* Check and reset heart-beat timer is necessary */ 1015 mempool_free(pmboxq, phba->mbox_mem_pool); 1016 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1017 !(phba->link_state == LPFC_HBA_ERROR) && 1018 !(phba->pport->load_flag & FC_UNLOADING)) 1019 mod_timer(&phba->hb_tmofunc, 1020 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1021 return; 1022} 1023 1024/** 1025 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1026 * @phba: pointer to lpfc hba data structure. 1027 * 1028 * This is the actual HBA-timer timeout handler to be invoked by the worker 1029 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1030 * handler performs any periodic operations needed for the device. If such 1031 * periodic event has already been attended to either in the interrupt handler 1032 * or by processing slow-ring or fast-ring events within the HBA-timer 1033 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1034 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1035 * is configured and there is no heart-beat mailbox command outstanding, a 1036 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1037 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1038 * to offline. 1039 **/ 1040void 1041lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1042{ 1043 struct lpfc_vport **vports; 1044 LPFC_MBOXQ_t *pmboxq; 1045 struct lpfc_dmabuf *buf_ptr; 1046 int retval, i; 1047 struct lpfc_sli *psli = &phba->sli; 1048 LIST_HEAD(completions); 1049 1050 vports = lpfc_create_vport_work_array(phba); 1051 if (vports != NULL) 1052 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1053 lpfc_rcv_seq_check_edtov(vports[i]); 1054 lpfc_destroy_vport_work_array(phba, vports); 1055 1056 if ((phba->link_state == LPFC_HBA_ERROR) || 1057 (phba->pport->load_flag & FC_UNLOADING) || 1058 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1059 return; 1060 1061 spin_lock_irq(&phba->pport->work_port_lock); 1062 1063 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 1064 jiffies)) { 1065 spin_unlock_irq(&phba->pport->work_port_lock); 1066 if (!phba->hb_outstanding) 1067 mod_timer(&phba->hb_tmofunc, 1068 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1069 else 1070 mod_timer(&phba->hb_tmofunc, 1071 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1072 return; 1073 } 1074 spin_unlock_irq(&phba->pport->work_port_lock); 1075 1076 if (phba->elsbuf_cnt && 1077 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1078 spin_lock_irq(&phba->hbalock); 1079 list_splice_init(&phba->elsbuf, &completions); 1080 phba->elsbuf_cnt = 0; 1081 phba->elsbuf_prev_cnt = 0; 1082 spin_unlock_irq(&phba->hbalock); 1083 1084 while (!list_empty(&completions)) { 1085 list_remove_head(&completions, buf_ptr, 1086 struct lpfc_dmabuf, list); 1087 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1088 kfree(buf_ptr); 1089 } 1090 } 1091 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1092 1093 /* If there is no heart beat outstanding, issue a heartbeat command */ 1094 if (phba->cfg_enable_hba_heartbeat) { 1095 if (!phba->hb_outstanding) { 1096 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1097 (list_empty(&psli->mboxq))) { 1098 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1099 GFP_KERNEL); 1100 if (!pmboxq) { 1101 mod_timer(&phba->hb_tmofunc, 1102 jiffies + 1103 HZ * LPFC_HB_MBOX_INTERVAL); 1104 return; 1105 } 1106 1107 lpfc_heart_beat(phba, pmboxq); 1108 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1109 pmboxq->vport = phba->pport; 1110 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1111 MBX_NOWAIT); 1112 1113 if (retval != MBX_BUSY && 1114 retval != MBX_SUCCESS) { 1115 mempool_free(pmboxq, 1116 phba->mbox_mem_pool); 1117 mod_timer(&phba->hb_tmofunc, 1118 jiffies + 1119 HZ * LPFC_HB_MBOX_INTERVAL); 1120 return; 1121 } 1122 phba->skipped_hb = 0; 1123 phba->hb_outstanding = 1; 1124 } else if (time_before_eq(phba->last_completion_time, 1125 phba->skipped_hb)) { 1126 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1127 "2857 Last completion time not " 1128 " updated in %d ms\n", 1129 jiffies_to_msecs(jiffies 1130 - phba->last_completion_time)); 1131 } else 1132 phba->skipped_hb = jiffies; 1133 1134 mod_timer(&phba->hb_tmofunc, 1135 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1136 return; 1137 } else { 1138 /* 1139 * If heart beat timeout called with hb_outstanding set 1140 * we need to give the hb mailbox cmd a chance to 1141 * complete or TMO. 1142 */ 1143 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1144 "0459 Adapter heartbeat still out" 1145 "standing:last compl time was %d ms.\n", 1146 jiffies_to_msecs(jiffies 1147 - phba->last_completion_time)); 1148 mod_timer(&phba->hb_tmofunc, 1149 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1150 } 1151 } 1152} 1153 1154/** 1155 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1156 * @phba: pointer to lpfc hba data structure. 1157 * 1158 * This routine is called to bring the HBA offline when HBA hardware error 1159 * other than Port Error 6 has been detected. 1160 **/ 1161static void 1162lpfc_offline_eratt(struct lpfc_hba *phba) 1163{ 1164 struct lpfc_sli *psli = &phba->sli; 1165 1166 spin_lock_irq(&phba->hbalock); 1167 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1168 spin_unlock_irq(&phba->hbalock); 1169 lpfc_offline_prep(phba); 1170 1171 lpfc_offline(phba); 1172 lpfc_reset_barrier(phba); 1173 spin_lock_irq(&phba->hbalock); 1174 lpfc_sli_brdreset(phba); 1175 spin_unlock_irq(&phba->hbalock); 1176 lpfc_hba_down_post(phba); 1177 lpfc_sli_brdready(phba, HS_MBRDY); 1178 lpfc_unblock_mgmt_io(phba); 1179 phba->link_state = LPFC_HBA_ERROR; 1180 return; 1181} 1182 1183/** 1184 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1185 * @phba: pointer to lpfc hba data structure. 1186 * 1187 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1188 * other than Port Error 6 has been detected. 1189 **/ 1190static void 1191lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1192{ 1193 lpfc_offline_prep(phba); 1194 lpfc_offline(phba); 1195 lpfc_sli4_brdreset(phba); 1196 lpfc_hba_down_post(phba); 1197 lpfc_sli4_post_status_check(phba); 1198 lpfc_unblock_mgmt_io(phba); 1199 phba->link_state = LPFC_HBA_ERROR; 1200} 1201 1202/** 1203 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1204 * @phba: pointer to lpfc hba data structure. 1205 * 1206 * This routine is invoked to handle the deferred HBA hardware error 1207 * conditions. This type of error is indicated by HBA by setting ER1 1208 * and another ER bit in the host status register. The driver will 1209 * wait until the ER1 bit clears before handling the error condition. 1210 **/ 1211static void 1212lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1213{ 1214 uint32_t old_host_status = phba->work_hs; 1215 struct lpfc_sli_ring *pring; 1216 struct lpfc_sli *psli = &phba->sli; 1217 1218 /* If the pci channel is offline, ignore possible errors, 1219 * since we cannot communicate with the pci card anyway. 1220 */ 1221 if (pci_channel_offline(phba->pcidev)) { 1222 spin_lock_irq(&phba->hbalock); 1223 phba->hba_flag &= ~DEFER_ERATT; 1224 spin_unlock_irq(&phba->hbalock); 1225 return; 1226 } 1227 1228 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1229 "0479 Deferred Adapter Hardware Error " 1230 "Data: x%x x%x x%x\n", 1231 phba->work_hs, 1232 phba->work_status[0], phba->work_status[1]); 1233 1234 spin_lock_irq(&phba->hbalock); 1235 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1236 spin_unlock_irq(&phba->hbalock); 1237 1238 1239 /* 1240 * Firmware stops when it triggred erratt. That could cause the I/Os 1241 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1242 * SCSI layer retry it after re-establishing link. 1243 */ 1244 pring = &psli->ring[psli->fcp_ring]; 1245 lpfc_sli_abort_iocb_ring(phba, pring); 1246 1247 /* 1248 * There was a firmware error. Take the hba offline and then 1249 * attempt to restart it. 1250 */ 1251 lpfc_offline_prep(phba); 1252 lpfc_offline(phba); 1253 1254 /* Wait for the ER1 bit to clear.*/ 1255 while (phba->work_hs & HS_FFER1) { 1256 msleep(100); 1257 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1258 phba->work_hs = UNPLUG_ERR ; 1259 break; 1260 } 1261 /* If driver is unloading let the worker thread continue */ 1262 if (phba->pport->load_flag & FC_UNLOADING) { 1263 phba->work_hs = 0; 1264 break; 1265 } 1266 } 1267 1268 /* 1269 * This is to ptrotect against a race condition in which 1270 * first write to the host attention register clear the 1271 * host status register. 1272 */ 1273 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1274 phba->work_hs = old_host_status & ~HS_FFER1; 1275 1276 spin_lock_irq(&phba->hbalock); 1277 phba->hba_flag &= ~DEFER_ERATT; 1278 spin_unlock_irq(&phba->hbalock); 1279 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1280 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1281} 1282 1283static void 1284lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1285{ 1286 struct lpfc_board_event_header board_event; 1287 struct Scsi_Host *shost; 1288 1289 board_event.event_type = FC_REG_BOARD_EVENT; 1290 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1291 shost = lpfc_shost_from_vport(phba->pport); 1292 fc_host_post_vendor_event(shost, fc_get_event_number(), 1293 sizeof(board_event), 1294 (char *) &board_event, 1295 LPFC_NL_VENDOR_ID); 1296} 1297 1298/** 1299 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1300 * @phba: pointer to lpfc hba data structure. 1301 * 1302 * This routine is invoked to handle the following HBA hardware error 1303 * conditions: 1304 * 1 - HBA error attention interrupt 1305 * 2 - DMA ring index out of range 1306 * 3 - Mailbox command came back as unknown 1307 **/ 1308static void 1309lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1310{ 1311 struct lpfc_vport *vport = phba->pport; 1312 struct lpfc_sli *psli = &phba->sli; 1313 struct lpfc_sli_ring *pring; 1314 uint32_t event_data; 1315 unsigned long temperature; 1316 struct temp_event temp_event_data; 1317 struct Scsi_Host *shost; 1318 1319 /* If the pci channel is offline, ignore possible errors, 1320 * since we cannot communicate with the pci card anyway. 1321 */ 1322 if (pci_channel_offline(phba->pcidev)) { 1323 spin_lock_irq(&phba->hbalock); 1324 phba->hba_flag &= ~DEFER_ERATT; 1325 spin_unlock_irq(&phba->hbalock); 1326 return; 1327 } 1328 1329 /* If resets are disabled then leave the HBA alone and return */ 1330 if (!phba->cfg_enable_hba_reset) 1331 return; 1332 1333 /* Send an internal error event to mgmt application */ 1334 lpfc_board_errevt_to_mgmt(phba); 1335 1336 if (phba->hba_flag & DEFER_ERATT) 1337 lpfc_handle_deferred_eratt(phba); 1338 1339 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1340 if (phba->work_hs & HS_FFER6) 1341 /* Re-establishing Link */ 1342 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1343 "1301 Re-establishing Link " 1344 "Data: x%x x%x x%x\n", 1345 phba->work_hs, phba->work_status[0], 1346 phba->work_status[1]); 1347 if (phba->work_hs & HS_FFER8) 1348 /* Device Zeroization */ 1349 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1350 "2861 Host Authentication device " 1351 "zeroization Data:x%x x%x x%x\n", 1352 phba->work_hs, phba->work_status[0], 1353 phba->work_status[1]); 1354 1355 spin_lock_irq(&phba->hbalock); 1356 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1357 spin_unlock_irq(&phba->hbalock); 1358 1359 /* 1360 * Firmware stops when it triggled erratt with HS_FFER6. 1361 * That could cause the I/Os dropped by the firmware. 1362 * Error iocb (I/O) on txcmplq and let the SCSI layer 1363 * retry it after re-establishing link. 1364 */ 1365 pring = &psli->ring[psli->fcp_ring]; 1366 lpfc_sli_abort_iocb_ring(phba, pring); 1367 1368 /* 1369 * There was a firmware error. Take the hba offline and then 1370 * attempt to restart it. 1371 */ 1372 lpfc_offline_prep(phba); 1373 lpfc_offline(phba); 1374 lpfc_sli_brdrestart(phba); 1375 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1376 lpfc_unblock_mgmt_io(phba); 1377 return; 1378 } 1379 lpfc_unblock_mgmt_io(phba); 1380 } else if (phba->work_hs & HS_CRIT_TEMP) { 1381 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1382 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1383 temp_event_data.event_code = LPFC_CRIT_TEMP; 1384 temp_event_data.data = (uint32_t)temperature; 1385 1386 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1387 "0406 Adapter maximum temperature exceeded " 1388 "(%ld), taking this port offline " 1389 "Data: x%x x%x x%x\n", 1390 temperature, phba->work_hs, 1391 phba->work_status[0], phba->work_status[1]); 1392 1393 shost = lpfc_shost_from_vport(phba->pport); 1394 fc_host_post_vendor_event(shost, fc_get_event_number(), 1395 sizeof(temp_event_data), 1396 (char *) &temp_event_data, 1397 SCSI_NL_VID_TYPE_PCI 1398 | PCI_VENDOR_ID_EMULEX); 1399 1400 spin_lock_irq(&phba->hbalock); 1401 phba->over_temp_state = HBA_OVER_TEMP; 1402 spin_unlock_irq(&phba->hbalock); 1403 lpfc_offline_eratt(phba); 1404 1405 } else { 1406 /* The if clause above forces this code path when the status 1407 * failure is a value other than FFER6. Do not call the offline 1408 * twice. This is the adapter hardware error path. 1409 */ 1410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1411 "0457 Adapter Hardware Error " 1412 "Data: x%x x%x x%x\n", 1413 phba->work_hs, 1414 phba->work_status[0], phba->work_status[1]); 1415 1416 event_data = FC_REG_DUMP_EVENT; 1417 shost = lpfc_shost_from_vport(vport); 1418 fc_host_post_vendor_event(shost, fc_get_event_number(), 1419 sizeof(event_data), (char *) &event_data, 1420 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1421 1422 lpfc_offline_eratt(phba); 1423 } 1424 return; 1425} 1426 1427/** 1428 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1429 * @phba: pointer to lpfc hba data structure. 1430 * 1431 * This routine is invoked to handle the SLI4 HBA hardware error attention 1432 * conditions. 1433 **/ 1434static void 1435lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1436{ 1437 struct lpfc_vport *vport = phba->pport; 1438 uint32_t event_data; 1439 struct Scsi_Host *shost; 1440 uint32_t if_type; 1441 struct lpfc_register portstat_reg; 1442 1443 /* If the pci channel is offline, ignore possible errors, since 1444 * we cannot communicate with the pci card anyway. 1445 */ 1446 if (pci_channel_offline(phba->pcidev)) 1447 return; 1448 /* If resets are disabled then leave the HBA alone and return */ 1449 if (!phba->cfg_enable_hba_reset) 1450 return; 1451 1452 /* Send an internal error event to mgmt application */ 1453 lpfc_board_errevt_to_mgmt(phba); 1454 1455 /* For now, the actual action for SLI4 device handling is not 1456 * specified yet, just treated it as adaptor hardware failure 1457 */ 1458 event_data = FC_REG_DUMP_EVENT; 1459 shost = lpfc_shost_from_vport(vport); 1460 fc_host_post_vendor_event(shost, fc_get_event_number(), 1461 sizeof(event_data), (char *) &event_data, 1462 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1463 1464 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1465 switch (if_type) { 1466 case LPFC_SLI_INTF_IF_TYPE_0: 1467 lpfc_sli4_offline_eratt(phba); 1468 break; 1469 case LPFC_SLI_INTF_IF_TYPE_2: 1470 portstat_reg.word0 = 1471 readl(phba->sli4_hba.u.if_type2.STATUSregaddr); 1472 1473 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1474 /* TODO: Register for Overtemp async events. */ 1475 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1476 "2889 Port Overtemperature event, " 1477 "taking port\n"); 1478 spin_lock_irq(&phba->hbalock); 1479 phba->over_temp_state = HBA_OVER_TEMP; 1480 spin_unlock_irq(&phba->hbalock); 1481 lpfc_sli4_offline_eratt(phba); 1482 return; 1483 } 1484 if (bf_get(lpfc_sliport_status_rn, &portstat_reg)) { 1485 /* 1486 * TODO: Attempt port recovery via a port reset. 1487 * When fully implemented, the driver should 1488 * attempt to recover the port here and return. 1489 * For now, log an error and take the port offline. 1490 */ 1491 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1492 "2887 Port Error: Attempting " 1493 "Port Recovery\n"); 1494 } 1495 lpfc_sli4_offline_eratt(phba); 1496 break; 1497 case LPFC_SLI_INTF_IF_TYPE_1: 1498 default: 1499 break; 1500 } 1501} 1502 1503/** 1504 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1505 * @phba: pointer to lpfc HBA data structure. 1506 * 1507 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1508 * routine from the API jump table function pointer from the lpfc_hba struct. 1509 * 1510 * Return codes 1511 * 0 - success. 1512 * Any other value - error. 1513 **/ 1514void 1515lpfc_handle_eratt(struct lpfc_hba *phba) 1516{ 1517 (*phba->lpfc_handle_eratt)(phba); 1518} 1519 1520/** 1521 * lpfc_handle_latt - The HBA link event handler 1522 * @phba: pointer to lpfc hba data structure. 1523 * 1524 * This routine is invoked from the worker thread to handle a HBA host 1525 * attention link event. 1526 **/ 1527void 1528lpfc_handle_latt(struct lpfc_hba *phba) 1529{ 1530 struct lpfc_vport *vport = phba->pport; 1531 struct lpfc_sli *psli = &phba->sli; 1532 LPFC_MBOXQ_t *pmb; 1533 volatile uint32_t control; 1534 struct lpfc_dmabuf *mp; 1535 int rc = 0; 1536 1537 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1538 if (!pmb) { 1539 rc = 1; 1540 goto lpfc_handle_latt_err_exit; 1541 } 1542 1543 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1544 if (!mp) { 1545 rc = 2; 1546 goto lpfc_handle_latt_free_pmb; 1547 } 1548 1549 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1550 if (!mp->virt) { 1551 rc = 3; 1552 goto lpfc_handle_latt_free_mp; 1553 } 1554 1555 /* Cleanup any outstanding ELS commands */ 1556 lpfc_els_flush_all_cmd(phba); 1557 1558 psli->slistat.link_event++; 1559 lpfc_read_topology(phba, pmb, mp); 1560 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1561 pmb->vport = vport; 1562 /* Block ELS IOCBs until we have processed this mbox command */ 1563 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1564 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1565 if (rc == MBX_NOT_FINISHED) { 1566 rc = 4; 1567 goto lpfc_handle_latt_free_mbuf; 1568 } 1569 1570 /* Clear Link Attention in HA REG */ 1571 spin_lock_irq(&phba->hbalock); 1572 writel(HA_LATT, phba->HAregaddr); 1573 readl(phba->HAregaddr); /* flush */ 1574 spin_unlock_irq(&phba->hbalock); 1575 1576 return; 1577 1578lpfc_handle_latt_free_mbuf: 1579 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1580 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1581lpfc_handle_latt_free_mp: 1582 kfree(mp); 1583lpfc_handle_latt_free_pmb: 1584 mempool_free(pmb, phba->mbox_mem_pool); 1585lpfc_handle_latt_err_exit: 1586 /* Enable Link attention interrupts */ 1587 spin_lock_irq(&phba->hbalock); 1588 psli->sli_flag |= LPFC_PROCESS_LA; 1589 control = readl(phba->HCregaddr); 1590 control |= HC_LAINT_ENA; 1591 writel(control, phba->HCregaddr); 1592 readl(phba->HCregaddr); /* flush */ 1593 1594 /* Clear Link Attention in HA REG */ 1595 writel(HA_LATT, phba->HAregaddr); 1596 readl(phba->HAregaddr); /* flush */ 1597 spin_unlock_irq(&phba->hbalock); 1598 lpfc_linkdown(phba); 1599 phba->link_state = LPFC_HBA_ERROR; 1600 1601 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1602 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1603 1604 return; 1605} 1606 1607/** 1608 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1609 * @phba: pointer to lpfc hba data structure. 1610 * @vpd: pointer to the vital product data. 1611 * @len: length of the vital product data in bytes. 1612 * 1613 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1614 * an array of characters. In this routine, the ModelName, ProgramType, and 1615 * ModelDesc, etc. fields of the phba data structure will be populated. 1616 * 1617 * Return codes 1618 * 0 - pointer to the VPD passed in is NULL 1619 * 1 - success 1620 **/ 1621int 1622lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1623{ 1624 uint8_t lenlo, lenhi; 1625 int Length; 1626 int i, j; 1627 int finished = 0; 1628 int index = 0; 1629 1630 if (!vpd) 1631 return 0; 1632 1633 /* Vital Product */ 1634 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1635 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1636 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1637 (uint32_t) vpd[3]); 1638 while (!finished && (index < (len - 4))) { 1639 switch (vpd[index]) { 1640 case 0x82: 1641 case 0x91: 1642 index += 1; 1643 lenlo = vpd[index]; 1644 index += 1; 1645 lenhi = vpd[index]; 1646 index += 1; 1647 i = ((((unsigned short)lenhi) << 8) + lenlo); 1648 index += i; 1649 break; 1650 case 0x90: 1651 index += 1; 1652 lenlo = vpd[index]; 1653 index += 1; 1654 lenhi = vpd[index]; 1655 index += 1; 1656 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1657 if (Length > len - index) 1658 Length = len - index; 1659 while (Length > 0) { 1660 /* Look for Serial Number */ 1661 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1662 index += 2; 1663 i = vpd[index]; 1664 index += 1; 1665 j = 0; 1666 Length -= (3+i); 1667 while(i--) { 1668 phba->SerialNumber[j++] = vpd[index++]; 1669 if (j == 31) 1670 break; 1671 } 1672 phba->SerialNumber[j] = 0; 1673 continue; 1674 } 1675 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1676 phba->vpd_flag |= VPD_MODEL_DESC; 1677 index += 2; 1678 i = vpd[index]; 1679 index += 1; 1680 j = 0; 1681 Length -= (3+i); 1682 while(i--) { 1683 phba->ModelDesc[j++] = vpd[index++]; 1684 if (j == 255) 1685 break; 1686 } 1687 phba->ModelDesc[j] = 0; 1688 continue; 1689 } 1690 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1691 phba->vpd_flag |= VPD_MODEL_NAME; 1692 index += 2; 1693 i = vpd[index]; 1694 index += 1; 1695 j = 0; 1696 Length -= (3+i); 1697 while(i--) { 1698 phba->ModelName[j++] = vpd[index++]; 1699 if (j == 79) 1700 break; 1701 } 1702 phba->ModelName[j] = 0; 1703 continue; 1704 } 1705 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1706 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1707 index += 2; 1708 i = vpd[index]; 1709 index += 1; 1710 j = 0; 1711 Length -= (3+i); 1712 while(i--) { 1713 phba->ProgramType[j++] = vpd[index++]; 1714 if (j == 255) 1715 break; 1716 } 1717 phba->ProgramType[j] = 0; 1718 continue; 1719 } 1720 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1721 phba->vpd_flag |= VPD_PORT; 1722 index += 2; 1723 i = vpd[index]; 1724 index += 1; 1725 j = 0; 1726 Length -= (3+i); 1727 while(i--) { 1728 phba->Port[j++] = vpd[index++]; 1729 if (j == 19) 1730 break; 1731 } 1732 phba->Port[j] = 0; 1733 continue; 1734 } 1735 else { 1736 index += 2; 1737 i = vpd[index]; 1738 index += 1; 1739 index += i; 1740 Length -= (3 + i); 1741 } 1742 } 1743 finished = 0; 1744 break; 1745 case 0x78: 1746 finished = 1; 1747 break; 1748 default: 1749 index ++; 1750 break; 1751 } 1752 } 1753 1754 return(1); 1755} 1756 1757/** 1758 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1759 * @phba: pointer to lpfc hba data structure. 1760 * @mdp: pointer to the data structure to hold the derived model name. 1761 * @descp: pointer to the data structure to hold the derived description. 1762 * 1763 * This routine retrieves HBA's description based on its registered PCI device 1764 * ID. The @descp passed into this function points to an array of 256 chars. It 1765 * shall be returned with the model name, maximum speed, and the host bus type. 1766 * The @mdp passed into this function points to an array of 80 chars. When the 1767 * function returns, the @mdp will be filled with the model name. 1768 **/ 1769static void 1770lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1771{ 1772 lpfc_vpd_t *vp; 1773 uint16_t dev_id = phba->pcidev->device; 1774 int max_speed; 1775 int GE = 0; 1776 int oneConnect = 0; /* default is not a oneConnect */ 1777 struct { 1778 char *name; 1779 char *bus; 1780 char *function; 1781 } m = {"<Unknown>", "", ""}; 1782 1783 if (mdp && mdp[0] != '\0' 1784 && descp && descp[0] != '\0') 1785 return; 1786 1787 if (phba->lmt & LMT_16Gb) 1788 max_speed = 16; 1789 else if (phba->lmt & LMT_10Gb) 1790 max_speed = 10; 1791 else if (phba->lmt & LMT_8Gb) 1792 max_speed = 8; 1793 else if (phba->lmt & LMT_4Gb) 1794 max_speed = 4; 1795 else if (phba->lmt & LMT_2Gb) 1796 max_speed = 2; 1797 else 1798 max_speed = 1; 1799 1800 vp = &phba->vpd; 1801 1802 switch (dev_id) { 1803 case PCI_DEVICE_ID_FIREFLY: 1804 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1805 break; 1806 case PCI_DEVICE_ID_SUPERFLY: 1807 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1808 m = (typeof(m)){"LP7000", "PCI", 1809 "Fibre Channel Adapter"}; 1810 else 1811 m = (typeof(m)){"LP7000E", "PCI", 1812 "Fibre Channel Adapter"}; 1813 break; 1814 case PCI_DEVICE_ID_DRAGONFLY: 1815 m = (typeof(m)){"LP8000", "PCI", 1816 "Fibre Channel Adapter"}; 1817 break; 1818 case PCI_DEVICE_ID_CENTAUR: 1819 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1820 m = (typeof(m)){"LP9002", "PCI", 1821 "Fibre Channel Adapter"}; 1822 else 1823 m = (typeof(m)){"LP9000", "PCI", 1824 "Fibre Channel Adapter"}; 1825 break; 1826 case PCI_DEVICE_ID_RFLY: 1827 m = (typeof(m)){"LP952", "PCI", 1828 "Fibre Channel Adapter"}; 1829 break; 1830 case PCI_DEVICE_ID_PEGASUS: 1831 m = (typeof(m)){"LP9802", "PCI-X", 1832 "Fibre Channel Adapter"}; 1833 break; 1834 case PCI_DEVICE_ID_THOR: 1835 m = (typeof(m)){"LP10000", "PCI-X", 1836 "Fibre Channel Adapter"}; 1837 break; 1838 case PCI_DEVICE_ID_VIPER: 1839 m = (typeof(m)){"LPX1000", "PCI-X", 1840 "Fibre Channel Adapter"}; 1841 break; 1842 case PCI_DEVICE_ID_PFLY: 1843 m = (typeof(m)){"LP982", "PCI-X", 1844 "Fibre Channel Adapter"}; 1845 break; 1846 case PCI_DEVICE_ID_TFLY: 1847 m = (typeof(m)){"LP1050", "PCI-X", 1848 "Fibre Channel Adapter"}; 1849 break; 1850 case PCI_DEVICE_ID_HELIOS: 1851 m = (typeof(m)){"LP11000", "PCI-X2", 1852 "Fibre Channel Adapter"}; 1853 break; 1854 case PCI_DEVICE_ID_HELIOS_SCSP: 1855 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1856 "Fibre Channel Adapter"}; 1857 break; 1858 case PCI_DEVICE_ID_HELIOS_DCSP: 1859 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1860 "Fibre Channel Adapter"}; 1861 break; 1862 case PCI_DEVICE_ID_NEPTUNE: 1863 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1864 break; 1865 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1866 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1867 break; 1868 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1869 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1870 break; 1871 case PCI_DEVICE_ID_BMID: 1872 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1873 break; 1874 case PCI_DEVICE_ID_BSMB: 1875 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1876 break; 1877 case PCI_DEVICE_ID_ZEPHYR: 1878 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1879 break; 1880 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1881 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1882 break; 1883 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1884 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1885 GE = 1; 1886 break; 1887 case PCI_DEVICE_ID_ZMID: 1888 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1889 break; 1890 case PCI_DEVICE_ID_ZSMB: 1891 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1892 break; 1893 case PCI_DEVICE_ID_LP101: 1894 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1895 break; 1896 case PCI_DEVICE_ID_LP10000S: 1897 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1898 break; 1899 case PCI_DEVICE_ID_LP11000S: 1900 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 1901 break; 1902 case PCI_DEVICE_ID_LPE11000S: 1903 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 1904 break; 1905 case PCI_DEVICE_ID_SAT: 1906 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 1907 break; 1908 case PCI_DEVICE_ID_SAT_MID: 1909 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 1910 break; 1911 case PCI_DEVICE_ID_SAT_SMB: 1912 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 1913 break; 1914 case PCI_DEVICE_ID_SAT_DCSP: 1915 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 1916 break; 1917 case PCI_DEVICE_ID_SAT_SCSP: 1918 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 1919 break; 1920 case PCI_DEVICE_ID_SAT_S: 1921 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 1922 break; 1923 case PCI_DEVICE_ID_HORNET: 1924 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 1925 GE = 1; 1926 break; 1927 case PCI_DEVICE_ID_PROTEUS_VF: 1928 m = (typeof(m)){"LPev12000", "PCIe IOV", 1929 "Fibre Channel Adapter"}; 1930 break; 1931 case PCI_DEVICE_ID_PROTEUS_PF: 1932 m = (typeof(m)){"LPev12000", "PCIe IOV", 1933 "Fibre Channel Adapter"}; 1934 break; 1935 case PCI_DEVICE_ID_PROTEUS_S: 1936 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 1937 "Fibre Channel Adapter"}; 1938 break; 1939 case PCI_DEVICE_ID_TIGERSHARK: 1940 oneConnect = 1; 1941 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 1942 break; 1943 case PCI_DEVICE_ID_TOMCAT: 1944 oneConnect = 1; 1945 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 1946 break; 1947 case PCI_DEVICE_ID_FALCON: 1948 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 1949 "EmulexSecure Fibre"}; 1950 break; 1951 case PCI_DEVICE_ID_BALIUS: 1952 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 1953 "Fibre Channel Adapter"}; 1954 break; 1955 case PCI_DEVICE_ID_LANCER_FC: 1956 case PCI_DEVICE_ID_LANCER_FC_VF: 1957 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 1958 break; 1959 case PCI_DEVICE_ID_LANCER_FCOE: 1960 case PCI_DEVICE_ID_LANCER_FCOE_VF: 1961 oneConnect = 1; 1962 m = (typeof(m)){"OCe50100", "PCIe", "FCoE"}; 1963 break; 1964 default: 1965 m = (typeof(m)){"Unknown", "", ""}; 1966 break; 1967 } 1968 1969 if (mdp && mdp[0] == '\0') 1970 snprintf(mdp, 79,"%s", m.name); 1971 /* 1972 * oneConnect hba requires special processing, they are all initiators 1973 * and we put the port number on the end 1974 */ 1975 if (descp && descp[0] == '\0') { 1976 if (oneConnect) 1977 snprintf(descp, 255, 1978 "Emulex OneConnect %s, %s Initiator, Port %s", 1979 m.name, m.function, 1980 phba->Port); 1981 else 1982 snprintf(descp, 255, 1983 "Emulex %s %d%s %s %s", 1984 m.name, max_speed, (GE) ? "GE" : "Gb", 1985 m.bus, m.function); 1986 } 1987} 1988 1989/** 1990 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 1991 * @phba: pointer to lpfc hba data structure. 1992 * @pring: pointer to a IOCB ring. 1993 * @cnt: the number of IOCBs to be posted to the IOCB ring. 1994 * 1995 * This routine posts a given number of IOCBs with the associated DMA buffer 1996 * descriptors specified by the cnt argument to the given IOCB ring. 1997 * 1998 * Return codes 1999 * The number of IOCBs NOT able to be posted to the IOCB ring. 2000 **/ 2001int 2002lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2003{ 2004 IOCB_t *icmd; 2005 struct lpfc_iocbq *iocb; 2006 struct lpfc_dmabuf *mp1, *mp2; 2007 2008 cnt += pring->missbufcnt; 2009 2010 /* While there are buffers to post */ 2011 while (cnt > 0) { 2012 /* Allocate buffer for command iocb */ 2013 iocb = lpfc_sli_get_iocbq(phba); 2014 if (iocb == NULL) { 2015 pring->missbufcnt = cnt; 2016 return cnt; 2017 } 2018 icmd = &iocb->iocb; 2019 2020 /* 2 buffers can be posted per command */ 2021 /* Allocate buffer to post */ 2022 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2023 if (mp1) 2024 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2025 if (!mp1 || !mp1->virt) { 2026 kfree(mp1); 2027 lpfc_sli_release_iocbq(phba, iocb); 2028 pring->missbufcnt = cnt; 2029 return cnt; 2030 } 2031 2032 INIT_LIST_HEAD(&mp1->list); 2033 /* Allocate buffer to post */ 2034 if (cnt > 1) { 2035 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2036 if (mp2) 2037 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2038 &mp2->phys); 2039 if (!mp2 || !mp2->virt) { 2040 kfree(mp2); 2041 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2042 kfree(mp1); 2043 lpfc_sli_release_iocbq(phba, iocb); 2044 pring->missbufcnt = cnt; 2045 return cnt; 2046 } 2047 2048 INIT_LIST_HEAD(&mp2->list); 2049 } else { 2050 mp2 = NULL; 2051 } 2052 2053 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2054 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2055 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2056 icmd->ulpBdeCount = 1; 2057 cnt--; 2058 if (mp2) { 2059 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2060 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2061 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2062 cnt--; 2063 icmd->ulpBdeCount = 2; 2064 } 2065 2066 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2067 icmd->ulpLe = 1; 2068 2069 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2070 IOCB_ERROR) { 2071 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2072 kfree(mp1); 2073 cnt++; 2074 if (mp2) { 2075 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2076 kfree(mp2); 2077 cnt++; 2078 } 2079 lpfc_sli_release_iocbq(phba, iocb); 2080 pring->missbufcnt = cnt; 2081 return cnt; 2082 } 2083 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2084 if (mp2) 2085 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2086 } 2087 pring->missbufcnt = 0; 2088 return 0; 2089} 2090 2091/** 2092 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2093 * @phba: pointer to lpfc hba data structure. 2094 * 2095 * This routine posts initial receive IOCB buffers to the ELS ring. The 2096 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2097 * set to 64 IOCBs. 2098 * 2099 * Return codes 2100 * 0 - success (currently always success) 2101 **/ 2102static int 2103lpfc_post_rcv_buf(struct lpfc_hba *phba) 2104{ 2105 struct lpfc_sli *psli = &phba->sli; 2106 2107 /* Ring 0, ELS / CT buffers */ 2108 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2109 /* Ring 2 - FCP no buffers needed */ 2110 2111 return 0; 2112} 2113 2114#define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2115 2116/** 2117 * lpfc_sha_init - Set up initial array of hash table entries 2118 * @HashResultPointer: pointer to an array as hash table. 2119 * 2120 * This routine sets up the initial values to the array of hash table entries 2121 * for the LC HBAs. 2122 **/ 2123static void 2124lpfc_sha_init(uint32_t * HashResultPointer) 2125{ 2126 HashResultPointer[0] = 0x67452301; 2127 HashResultPointer[1] = 0xEFCDAB89; 2128 HashResultPointer[2] = 0x98BADCFE; 2129 HashResultPointer[3] = 0x10325476; 2130 HashResultPointer[4] = 0xC3D2E1F0; 2131} 2132 2133/** 2134 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2135 * @HashResultPointer: pointer to an initial/result hash table. 2136 * @HashWorkingPointer: pointer to an working hash table. 2137 * 2138 * This routine iterates an initial hash table pointed by @HashResultPointer 2139 * with the values from the working hash table pointeed by @HashWorkingPointer. 2140 * The results are putting back to the initial hash table, returned through 2141 * the @HashResultPointer as the result hash table. 2142 **/ 2143static void 2144lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2145{ 2146 int t; 2147 uint32_t TEMP; 2148 uint32_t A, B, C, D, E; 2149 t = 16; 2150 do { 2151 HashWorkingPointer[t] = 2152 S(1, 2153 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2154 8] ^ 2155 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2156 } while (++t <= 79); 2157 t = 0; 2158 A = HashResultPointer[0]; 2159 B = HashResultPointer[1]; 2160 C = HashResultPointer[2]; 2161 D = HashResultPointer[3]; 2162 E = HashResultPointer[4]; 2163 2164 do { 2165 if (t < 20) { 2166 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2167 } else if (t < 40) { 2168 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2169 } else if (t < 60) { 2170 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2171 } else { 2172 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2173 } 2174 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2175 E = D; 2176 D = C; 2177 C = S(30, B); 2178 B = A; 2179 A = TEMP; 2180 } while (++t <= 79); 2181 2182 HashResultPointer[0] += A; 2183 HashResultPointer[1] += B; 2184 HashResultPointer[2] += C; 2185 HashResultPointer[3] += D; 2186 HashResultPointer[4] += E; 2187 2188} 2189 2190/** 2191 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2192 * @RandomChallenge: pointer to the entry of host challenge random number array. 2193 * @HashWorking: pointer to the entry of the working hash array. 2194 * 2195 * This routine calculates the working hash array referred by @HashWorking 2196 * from the challenge random numbers associated with the host, referred by 2197 * @RandomChallenge. The result is put into the entry of the working hash 2198 * array and returned by reference through @HashWorking. 2199 **/ 2200static void 2201lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2202{ 2203 *HashWorking = (*RandomChallenge ^ *HashWorking); 2204} 2205 2206/** 2207 * lpfc_hba_init - Perform special handling for LC HBA initialization 2208 * @phba: pointer to lpfc hba data structure. 2209 * @hbainit: pointer to an array of unsigned 32-bit integers. 2210 * 2211 * This routine performs the special handling for LC HBA initialization. 2212 **/ 2213void 2214lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2215{ 2216 int t; 2217 uint32_t *HashWorking; 2218 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2219 2220 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2221 if (!HashWorking) 2222 return; 2223 2224 HashWorking[0] = HashWorking[78] = *pwwnn++; 2225 HashWorking[1] = HashWorking[79] = *pwwnn; 2226 2227 for (t = 0; t < 7; t++) 2228 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2229 2230 lpfc_sha_init(hbainit); 2231 lpfc_sha_iterate(hbainit, HashWorking); 2232 kfree(HashWorking); 2233} 2234 2235/** 2236 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2237 * @vport: pointer to a virtual N_Port data structure. 2238 * 2239 * This routine performs the necessary cleanups before deleting the @vport. 2240 * It invokes the discovery state machine to perform necessary state 2241 * transitions and to release the ndlps associated with the @vport. Note, 2242 * the physical port is treated as @vport 0. 2243 **/ 2244void 2245lpfc_cleanup(struct lpfc_vport *vport) 2246{ 2247 struct lpfc_hba *phba = vport->phba; 2248 struct lpfc_nodelist *ndlp, *next_ndlp; 2249 int i = 0; 2250 2251 if (phba->link_state > LPFC_LINK_DOWN) 2252 lpfc_port_link_failure(vport); 2253 2254 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2255 if (!NLP_CHK_NODE_ACT(ndlp)) { 2256 ndlp = lpfc_enable_node(vport, ndlp, 2257 NLP_STE_UNUSED_NODE); 2258 if (!ndlp) 2259 continue; 2260 spin_lock_irq(&phba->ndlp_lock); 2261 NLP_SET_FREE_REQ(ndlp); 2262 spin_unlock_irq(&phba->ndlp_lock); 2263 /* Trigger the release of the ndlp memory */ 2264 lpfc_nlp_put(ndlp); 2265 continue; 2266 } 2267 spin_lock_irq(&phba->ndlp_lock); 2268 if (NLP_CHK_FREE_REQ(ndlp)) { 2269 /* The ndlp should not be in memory free mode already */ 2270 spin_unlock_irq(&phba->ndlp_lock); 2271 continue; 2272 } else 2273 /* Indicate request for freeing ndlp memory */ 2274 NLP_SET_FREE_REQ(ndlp); 2275 spin_unlock_irq(&phba->ndlp_lock); 2276 2277 if (vport->port_type != LPFC_PHYSICAL_PORT && 2278 ndlp->nlp_DID == Fabric_DID) { 2279 /* Just free up ndlp with Fabric_DID for vports */ 2280 lpfc_nlp_put(ndlp); 2281 continue; 2282 } 2283 2284 if (ndlp->nlp_type & NLP_FABRIC) 2285 lpfc_disc_state_machine(vport, ndlp, NULL, 2286 NLP_EVT_DEVICE_RECOVERY); 2287 2288 lpfc_disc_state_machine(vport, ndlp, NULL, 2289 NLP_EVT_DEVICE_RM); 2290 2291 } 2292 2293 /* At this point, ALL ndlp's should be gone 2294 * because of the previous NLP_EVT_DEVICE_RM. 2295 * Lets wait for this to happen, if needed. 2296 */ 2297 while (!list_empty(&vport->fc_nodes)) { 2298 if (i++ > 3000) { 2299 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2300 "0233 Nodelist not empty\n"); 2301 list_for_each_entry_safe(ndlp, next_ndlp, 2302 &vport->fc_nodes, nlp_listp) { 2303 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2304 LOG_NODE, 2305 "0282 did:x%x ndlp:x%p " 2306 "usgmap:x%x refcnt:%d\n", 2307 ndlp->nlp_DID, (void *)ndlp, 2308 ndlp->nlp_usg_map, 2309 atomic_read( 2310 &ndlp->kref.refcount)); 2311 } 2312 break; 2313 } 2314 2315 /* Wait for any activity on ndlps to settle */ 2316 msleep(10); 2317 } 2318 lpfc_cleanup_vports_rrqs(vport, NULL); 2319} 2320 2321/** 2322 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2323 * @vport: pointer to a virtual N_Port data structure. 2324 * 2325 * This routine stops all the timers associated with a @vport. This function 2326 * is invoked before disabling or deleting a @vport. Note that the physical 2327 * port is treated as @vport 0. 2328 **/ 2329void 2330lpfc_stop_vport_timers(struct lpfc_vport *vport) 2331{ 2332 del_timer_sync(&vport->els_tmofunc); 2333 del_timer_sync(&vport->fc_fdmitmo); 2334 del_timer_sync(&vport->delayed_disc_tmo); 2335 lpfc_can_disctmo(vport); 2336 return; 2337} 2338 2339/** 2340 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2341 * @phba: pointer to lpfc hba data structure. 2342 * 2343 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2344 * caller of this routine should already hold the host lock. 2345 **/ 2346void 2347__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2348{ 2349 /* Clear pending FCF rediscovery wait flag */ 2350 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2351 2352 /* Now, try to stop the timer */ 2353 del_timer(&phba->fcf.redisc_wait); 2354} 2355 2356/** 2357 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2358 * @phba: pointer to lpfc hba data structure. 2359 * 2360 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2361 * checks whether the FCF rediscovery wait timer is pending with the host 2362 * lock held before proceeding with disabling the timer and clearing the 2363 * wait timer pendig flag. 2364 **/ 2365void 2366lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2367{ 2368 spin_lock_irq(&phba->hbalock); 2369 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2370 /* FCF rediscovery timer already fired or stopped */ 2371 spin_unlock_irq(&phba->hbalock); 2372 return; 2373 } 2374 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2375 /* Clear failover in progress flags */ 2376 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2377 spin_unlock_irq(&phba->hbalock); 2378} 2379 2380/** 2381 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2382 * @phba: pointer to lpfc hba data structure. 2383 * 2384 * This routine stops all the timers associated with a HBA. This function is 2385 * invoked before either putting a HBA offline or unloading the driver. 2386 **/ 2387void 2388lpfc_stop_hba_timers(struct lpfc_hba *phba) 2389{ 2390 lpfc_stop_vport_timers(phba->pport); 2391 del_timer_sync(&phba->sli.mbox_tmo); 2392 del_timer_sync(&phba->fabric_block_timer); 2393 del_timer_sync(&phba->eratt_poll); 2394 del_timer_sync(&phba->hb_tmofunc); 2395 if (phba->sli_rev == LPFC_SLI_REV4) { 2396 del_timer_sync(&phba->rrq_tmr); 2397 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2398 } 2399 phba->hb_outstanding = 0; 2400 2401 switch (phba->pci_dev_grp) { 2402 case LPFC_PCI_DEV_LP: 2403 /* Stop any LightPulse device specific driver timers */ 2404 del_timer_sync(&phba->fcp_poll_timer); 2405 break; 2406 case LPFC_PCI_DEV_OC: 2407 /* Stop any OneConnect device sepcific driver timers */ 2408 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2409 break; 2410 default: 2411 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2412 "0297 Invalid device group (x%x)\n", 2413 phba->pci_dev_grp); 2414 break; 2415 } 2416 return; 2417} 2418 2419/** 2420 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2421 * @phba: pointer to lpfc hba data structure. 2422 * 2423 * This routine marks a HBA's management interface as blocked. Once the HBA's 2424 * management interface is marked as blocked, all the user space access to 2425 * the HBA, whether they are from sysfs interface or libdfc interface will 2426 * all be blocked. The HBA is set to block the management interface when the 2427 * driver prepares the HBA interface for online or offline. 2428 **/ 2429static void 2430lpfc_block_mgmt_io(struct lpfc_hba * phba) 2431{ 2432 unsigned long iflag; 2433 uint8_t actcmd = MBX_HEARTBEAT; 2434 unsigned long timeout; 2435 2436 2437 spin_lock_irqsave(&phba->hbalock, iflag); 2438 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2439 if (phba->sli.mbox_active) 2440 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2441 spin_unlock_irqrestore(&phba->hbalock, iflag); 2442 /* Determine how long we might wait for the active mailbox 2443 * command to be gracefully completed by firmware. 2444 */ 2445 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) + 2446 jiffies; 2447 /* Wait for the outstnading mailbox command to complete */ 2448 while (phba->sli.mbox_active) { 2449 /* Check active mailbox complete status every 2ms */ 2450 msleep(2); 2451 if (time_after(jiffies, timeout)) { 2452 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2453 "2813 Mgmt IO is Blocked %x " 2454 "- mbox cmd %x still active\n", 2455 phba->sli.sli_flag, actcmd); 2456 break; 2457 } 2458 } 2459} 2460 2461/** 2462 * lpfc_online - Initialize and bring a HBA online 2463 * @phba: pointer to lpfc hba data structure. 2464 * 2465 * This routine initializes the HBA and brings a HBA online. During this 2466 * process, the management interface is blocked to prevent user space access 2467 * to the HBA interfering with the driver initialization. 2468 * 2469 * Return codes 2470 * 0 - successful 2471 * 1 - failed 2472 **/ 2473int 2474lpfc_online(struct lpfc_hba *phba) 2475{ 2476 struct lpfc_vport *vport; 2477 struct lpfc_vport **vports; 2478 int i; 2479 2480 if (!phba) 2481 return 0; 2482 vport = phba->pport; 2483 2484 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2485 return 0; 2486 2487 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2488 "0458 Bring Adapter online\n"); 2489 2490 lpfc_block_mgmt_io(phba); 2491 2492 if (!lpfc_sli_queue_setup(phba)) { 2493 lpfc_unblock_mgmt_io(phba); 2494 return 1; 2495 } 2496 2497 if (phba->sli_rev == LPFC_SLI_REV4) { 2498 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2499 lpfc_unblock_mgmt_io(phba); 2500 return 1; 2501 } 2502 } else { 2503 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2504 lpfc_unblock_mgmt_io(phba); 2505 return 1; 2506 } 2507 } 2508 2509 vports = lpfc_create_vport_work_array(phba); 2510 if (vports != NULL) 2511 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2512 struct Scsi_Host *shost; 2513 shost = lpfc_shost_from_vport(vports[i]); 2514 spin_lock_irq(shost->host_lock); 2515 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2516 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2517 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2518 if (phba->sli_rev == LPFC_SLI_REV4) 2519 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2520 spin_unlock_irq(shost->host_lock); 2521 } 2522 lpfc_destroy_vport_work_array(phba, vports); 2523 2524 lpfc_unblock_mgmt_io(phba); 2525 return 0; 2526} 2527 2528/** 2529 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2530 * @phba: pointer to lpfc hba data structure. 2531 * 2532 * This routine marks a HBA's management interface as not blocked. Once the 2533 * HBA's management interface is marked as not blocked, all the user space 2534 * access to the HBA, whether they are from sysfs interface or libdfc 2535 * interface will be allowed. The HBA is set to block the management interface 2536 * when the driver prepares the HBA interface for online or offline and then 2537 * set to unblock the management interface afterwards. 2538 **/ 2539void 2540lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2541{ 2542 unsigned long iflag; 2543 2544 spin_lock_irqsave(&phba->hbalock, iflag); 2545 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2546 spin_unlock_irqrestore(&phba->hbalock, iflag); 2547} 2548 2549/** 2550 * lpfc_offline_prep - Prepare a HBA to be brought offline 2551 * @phba: pointer to lpfc hba data structure. 2552 * 2553 * This routine is invoked to prepare a HBA to be brought offline. It performs 2554 * unregistration login to all the nodes on all vports and flushes the mailbox 2555 * queue to make it ready to be brought offline. 2556 **/ 2557void 2558lpfc_offline_prep(struct lpfc_hba * phba) 2559{ 2560 struct lpfc_vport *vport = phba->pport; 2561 struct lpfc_nodelist *ndlp, *next_ndlp; 2562 struct lpfc_vport **vports; 2563 struct Scsi_Host *shost; 2564 int i; 2565 2566 if (vport->fc_flag & FC_OFFLINE_MODE) 2567 return; 2568 2569 lpfc_block_mgmt_io(phba); 2570 2571 lpfc_linkdown(phba); 2572 2573 /* Issue an unreg_login to all nodes on all vports */ 2574 vports = lpfc_create_vport_work_array(phba); 2575 if (vports != NULL) { 2576 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2577 if (vports[i]->load_flag & FC_UNLOADING) 2578 continue; 2579 shost = lpfc_shost_from_vport(vports[i]); 2580 spin_lock_irq(shost->host_lock); 2581 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2582 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2583 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2584 spin_unlock_irq(shost->host_lock); 2585 2586 shost = lpfc_shost_from_vport(vports[i]); 2587 list_for_each_entry_safe(ndlp, next_ndlp, 2588 &vports[i]->fc_nodes, 2589 nlp_listp) { 2590 if (!NLP_CHK_NODE_ACT(ndlp)) 2591 continue; 2592 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2593 continue; 2594 if (ndlp->nlp_type & NLP_FABRIC) { 2595 lpfc_disc_state_machine(vports[i], ndlp, 2596 NULL, NLP_EVT_DEVICE_RECOVERY); 2597 lpfc_disc_state_machine(vports[i], ndlp, 2598 NULL, NLP_EVT_DEVICE_RM); 2599 } 2600 spin_lock_irq(shost->host_lock); 2601 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2602 spin_unlock_irq(shost->host_lock); 2603 lpfc_unreg_rpi(vports[i], ndlp); 2604 } 2605 } 2606 } 2607 lpfc_destroy_vport_work_array(phba, vports); 2608 2609 lpfc_sli_mbox_sys_shutdown(phba); 2610} 2611 2612/** 2613 * lpfc_offline - Bring a HBA offline 2614 * @phba: pointer to lpfc hba data structure. 2615 * 2616 * This routine actually brings a HBA offline. It stops all the timers 2617 * associated with the HBA, brings down the SLI layer, and eventually 2618 * marks the HBA as in offline state for the upper layer protocol. 2619 **/ 2620void 2621lpfc_offline(struct lpfc_hba *phba) 2622{ 2623 struct Scsi_Host *shost; 2624 struct lpfc_vport **vports; 2625 int i; 2626 2627 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2628 return; 2629 2630 /* stop port and all timers associated with this hba */ 2631 lpfc_stop_port(phba); 2632 vports = lpfc_create_vport_work_array(phba); 2633 if (vports != NULL) 2634 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2635 lpfc_stop_vport_timers(vports[i]); 2636 lpfc_destroy_vport_work_array(phba, vports); 2637 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2638 "0460 Bring Adapter offline\n"); 2639 /* Bring down the SLI Layer and cleanup. The HBA is offline 2640 now. */ 2641 lpfc_sli_hba_down(phba); 2642 spin_lock_irq(&phba->hbalock); 2643 phba->work_ha = 0; 2644 spin_unlock_irq(&phba->hbalock); 2645 vports = lpfc_create_vport_work_array(phba); 2646 if (vports != NULL) 2647 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2648 shost = lpfc_shost_from_vport(vports[i]); 2649 spin_lock_irq(shost->host_lock); 2650 vports[i]->work_port_events = 0; 2651 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2652 spin_unlock_irq(shost->host_lock); 2653 } 2654 lpfc_destroy_vport_work_array(phba, vports); 2655} 2656 2657/** 2658 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2659 * @phba: pointer to lpfc hba data structure. 2660 * 2661 * This routine is to free all the SCSI buffers and IOCBs from the driver 2662 * list back to kernel. It is called from lpfc_pci_remove_one to free 2663 * the internal resources before the device is removed from the system. 2664 * 2665 * Return codes 2666 * 0 - successful (for now, it always returns 0) 2667 **/ 2668static int 2669lpfc_scsi_free(struct lpfc_hba *phba) 2670{ 2671 struct lpfc_scsi_buf *sb, *sb_next; 2672 struct lpfc_iocbq *io, *io_next; 2673 2674 spin_lock_irq(&phba->hbalock); 2675 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2676 spin_lock(&phba->scsi_buf_list_lock); 2677 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2678 list_del(&sb->list); 2679 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2680 sb->dma_handle); 2681 kfree(sb); 2682 phba->total_scsi_bufs--; 2683 } 2684 spin_unlock(&phba->scsi_buf_list_lock); 2685 2686 /* Release all the lpfc_iocbq entries maintained by this host. */ 2687 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2688 list_del(&io->list); 2689 kfree(io); 2690 phba->total_iocbq_bufs--; 2691 } 2692 spin_unlock_irq(&phba->hbalock); 2693 return 0; 2694} 2695 2696/** 2697 * lpfc_create_port - Create an FC port 2698 * @phba: pointer to lpfc hba data structure. 2699 * @instance: a unique integer ID to this FC port. 2700 * @dev: pointer to the device data structure. 2701 * 2702 * This routine creates a FC port for the upper layer protocol. The FC port 2703 * can be created on top of either a physical port or a virtual port provided 2704 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2705 * and associates the FC port created before adding the shost into the SCSI 2706 * layer. 2707 * 2708 * Return codes 2709 * @vport - pointer to the virtual N_Port data structure. 2710 * NULL - port create failed. 2711 **/ 2712struct lpfc_vport * 2713lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2714{ 2715 struct lpfc_vport *vport; 2716 struct Scsi_Host *shost; 2717 int error = 0; 2718 2719 if (dev != &phba->pcidev->dev) 2720 shost = scsi_host_alloc(&lpfc_vport_template, 2721 sizeof(struct lpfc_vport)); 2722 else 2723 shost = scsi_host_alloc(&lpfc_template, 2724 sizeof(struct lpfc_vport)); 2725 if (!shost) 2726 goto out; 2727 2728 vport = (struct lpfc_vport *) shost->hostdata; 2729 vport->phba = phba; 2730 vport->load_flag |= FC_LOADING; 2731 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2732 vport->fc_rscn_flush = 0; 2733 2734 lpfc_get_vport_cfgparam(vport); 2735 shost->unique_id = instance; 2736 shost->max_id = LPFC_MAX_TARGET; 2737 shost->max_lun = vport->cfg_max_luns; 2738 shost->this_id = -1; 2739 shost->max_cmd_len = 16; 2740 if (phba->sli_rev == LPFC_SLI_REV4) { 2741 shost->dma_boundary = 2742 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 2743 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2744 } 2745 2746 /* 2747 * Set initial can_queue value since 0 is no longer supported and 2748 * scsi_add_host will fail. This will be adjusted later based on the 2749 * max xri value determined in hba setup. 2750 */ 2751 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2752 if (dev != &phba->pcidev->dev) { 2753 shost->transportt = lpfc_vport_transport_template; 2754 vport->port_type = LPFC_NPIV_PORT; 2755 } else { 2756 shost->transportt = lpfc_transport_template; 2757 vport->port_type = LPFC_PHYSICAL_PORT; 2758 } 2759 2760 /* Initialize all internally managed lists. */ 2761 INIT_LIST_HEAD(&vport->fc_nodes); 2762 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2763 spin_lock_init(&vport->work_port_lock); 2764 2765 init_timer(&vport->fc_disctmo); 2766 vport->fc_disctmo.function = lpfc_disc_timeout; 2767 vport->fc_disctmo.data = (unsigned long)vport; 2768 2769 init_timer(&vport->fc_fdmitmo); 2770 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2771 vport->fc_fdmitmo.data = (unsigned long)vport; 2772 2773 init_timer(&vport->els_tmofunc); 2774 vport->els_tmofunc.function = lpfc_els_timeout; 2775 vport->els_tmofunc.data = (unsigned long)vport; 2776 2777 init_timer(&vport->delayed_disc_tmo); 2778 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; 2779 vport->delayed_disc_tmo.data = (unsigned long)vport; 2780 2781 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 2782 if (error) 2783 goto out_put_shost; 2784 2785 spin_lock_irq(&phba->hbalock); 2786 list_add_tail(&vport->listentry, &phba->port_list); 2787 spin_unlock_irq(&phba->hbalock); 2788 return vport; 2789 2790out_put_shost: 2791 scsi_host_put(shost); 2792out: 2793 return NULL; 2794} 2795 2796/** 2797 * destroy_port - destroy an FC port 2798 * @vport: pointer to an lpfc virtual N_Port data structure. 2799 * 2800 * This routine destroys a FC port from the upper layer protocol. All the 2801 * resources associated with the port are released. 2802 **/ 2803void 2804destroy_port(struct lpfc_vport *vport) 2805{ 2806 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2807 struct lpfc_hba *phba = vport->phba; 2808 2809 lpfc_debugfs_terminate(vport); 2810 fc_remove_host(shost); 2811 scsi_remove_host(shost); 2812 2813 spin_lock_irq(&phba->hbalock); 2814 list_del_init(&vport->listentry); 2815 spin_unlock_irq(&phba->hbalock); 2816 2817 lpfc_cleanup(vport); 2818 return; 2819} 2820 2821/** 2822 * lpfc_get_instance - Get a unique integer ID 2823 * 2824 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2825 * uses the kernel idr facility to perform the task. 2826 * 2827 * Return codes: 2828 * instance - a unique integer ID allocated as the new instance. 2829 * -1 - lpfc get instance failed. 2830 **/ 2831int 2832lpfc_get_instance(void) 2833{ 2834 int instance = 0; 2835 2836 /* Assign an unused number */ 2837 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2838 return -1; 2839 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2840 return -1; 2841 return instance; 2842} 2843 2844/** 2845 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2846 * @shost: pointer to SCSI host data structure. 2847 * @time: elapsed time of the scan in jiffies. 2848 * 2849 * This routine is called by the SCSI layer with a SCSI host to determine 2850 * whether the scan host is finished. 2851 * 2852 * Note: there is no scan_start function as adapter initialization will have 2853 * asynchronously kicked off the link initialization. 2854 * 2855 * Return codes 2856 * 0 - SCSI host scan is not over yet. 2857 * 1 - SCSI host scan is over. 2858 **/ 2859int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2860{ 2861 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2862 struct lpfc_hba *phba = vport->phba; 2863 int stat = 0; 2864 2865 spin_lock_irq(shost->host_lock); 2866 2867 if (vport->load_flag & FC_UNLOADING) { 2868 stat = 1; 2869 goto finished; 2870 } 2871 if (time >= 30 * HZ) { 2872 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2873 "0461 Scanning longer than 30 " 2874 "seconds. Continuing initialization\n"); 2875 stat = 1; 2876 goto finished; 2877 } 2878 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2879 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2880 "0465 Link down longer than 15 " 2881 "seconds. Continuing initialization\n"); 2882 stat = 1; 2883 goto finished; 2884 } 2885 2886 if (vport->port_state != LPFC_VPORT_READY) 2887 goto finished; 2888 if (vport->num_disc_nodes || vport->fc_prli_sent) 2889 goto finished; 2890 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2891 goto finished; 2892 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2893 goto finished; 2894 2895 stat = 1; 2896 2897finished: 2898 spin_unlock_irq(shost->host_lock); 2899 return stat; 2900} 2901 2902/** 2903 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 2904 * @shost: pointer to SCSI host data structure. 2905 * 2906 * This routine initializes a given SCSI host attributes on a FC port. The 2907 * SCSI host can be either on top of a physical port or a virtual port. 2908 **/ 2909void lpfc_host_attrib_init(struct Scsi_Host *shost) 2910{ 2911 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2912 struct lpfc_hba *phba = vport->phba; 2913 /* 2914 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2915 */ 2916 2917 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2918 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2919 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2920 2921 memset(fc_host_supported_fc4s(shost), 0, 2922 sizeof(fc_host_supported_fc4s(shost))); 2923 fc_host_supported_fc4s(shost)[2] = 1; 2924 fc_host_supported_fc4s(shost)[7] = 1; 2925 2926 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2927 sizeof fc_host_symbolic_name(shost)); 2928 2929 fc_host_supported_speeds(shost) = 0; 2930 if (phba->lmt & LMT_10Gb) 2931 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2932 if (phba->lmt & LMT_8Gb) 2933 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2934 if (phba->lmt & LMT_4Gb) 2935 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2936 if (phba->lmt & LMT_2Gb) 2937 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2938 if (phba->lmt & LMT_1Gb) 2939 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2940 2941 fc_host_maxframe_size(shost) = 2942 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2943 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2944 2945 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 2946 2947 /* This value is also unchanging */ 2948 memset(fc_host_active_fc4s(shost), 0, 2949 sizeof(fc_host_active_fc4s(shost))); 2950 fc_host_active_fc4s(shost)[2] = 1; 2951 fc_host_active_fc4s(shost)[7] = 1; 2952 2953 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2954 spin_lock_irq(shost->host_lock); 2955 vport->load_flag &= ~FC_LOADING; 2956 spin_unlock_irq(shost->host_lock); 2957} 2958 2959/** 2960 * lpfc_stop_port_s3 - Stop SLI3 device port 2961 * @phba: pointer to lpfc hba data structure. 2962 * 2963 * This routine is invoked to stop an SLI3 device port, it stops the device 2964 * from generating interrupts and stops the device driver's timers for the 2965 * device. 2966 **/ 2967static void 2968lpfc_stop_port_s3(struct lpfc_hba *phba) 2969{ 2970 /* Clear all interrupt enable conditions */ 2971 writel(0, phba->HCregaddr); 2972 readl(phba->HCregaddr); /* flush */ 2973 /* Clear all pending interrupts */ 2974 writel(0xffffffff, phba->HAregaddr); 2975 readl(phba->HAregaddr); /* flush */ 2976 2977 /* Reset some HBA SLI setup states */ 2978 lpfc_stop_hba_timers(phba); 2979 phba->pport->work_port_events = 0; 2980} 2981 2982/** 2983 * lpfc_stop_port_s4 - Stop SLI4 device port 2984 * @phba: pointer to lpfc hba data structure. 2985 * 2986 * This routine is invoked to stop an SLI4 device port, it stops the device 2987 * from generating interrupts and stops the device driver's timers for the 2988 * device. 2989 **/ 2990static void 2991lpfc_stop_port_s4(struct lpfc_hba *phba) 2992{ 2993 /* Reset some HBA SLI4 setup states */ 2994 lpfc_stop_hba_timers(phba); 2995 phba->pport->work_port_events = 0; 2996 phba->sli4_hba.intr_enable = 0; 2997} 2998 2999/** 3000 * lpfc_stop_port - Wrapper function for stopping hba port 3001 * @phba: Pointer to HBA context object. 3002 * 3003 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 3004 * the API jump table function pointer from the lpfc_hba struct. 3005 **/ 3006void 3007lpfc_stop_port(struct lpfc_hba *phba) 3008{ 3009 phba->lpfc_stop_port(phba); 3010} 3011 3012/** 3013 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 3014 * @phba: Pointer to hba for which this call is being executed. 3015 * 3016 * This routine starts the timer waiting for the FCF rediscovery to complete. 3017 **/ 3018void 3019lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 3020{ 3021 unsigned long fcf_redisc_wait_tmo = 3022 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 3023 /* Start fcf rediscovery wait period timer */ 3024 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 3025 spin_lock_irq(&phba->hbalock); 3026 /* Allow action to new fcf asynchronous event */ 3027 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 3028 /* Mark the FCF rediscovery pending state */ 3029 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 3030 spin_unlock_irq(&phba->hbalock); 3031} 3032 3033/** 3034 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 3035 * @ptr: Map to lpfc_hba data structure pointer. 3036 * 3037 * This routine is invoked when waiting for FCF table rediscover has been 3038 * timed out. If new FCF record(s) has (have) been discovered during the 3039 * wait period, a new FCF event shall be added to the FCOE async event 3040 * list, and then worker thread shall be waked up for processing from the 3041 * worker thread context. 3042 **/ 3043void 3044lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 3045{ 3046 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 3047 3048 /* Don't send FCF rediscovery event if timer cancelled */ 3049 spin_lock_irq(&phba->hbalock); 3050 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 3051 spin_unlock_irq(&phba->hbalock); 3052 return; 3053 } 3054 /* Clear FCF rediscovery timer pending flag */ 3055 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 3056 /* FCF rediscovery event to worker thread */ 3057 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 3058 spin_unlock_irq(&phba->hbalock); 3059 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3060 "2776 FCF rediscover quiescent timer expired\n"); 3061 /* wake up worker thread */ 3062 lpfc_worker_wake_up(phba); 3063} 3064 3065/** 3066 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3067 * @phba: pointer to lpfc hba data structure. 3068 * @acqe_link: pointer to the async link completion queue entry. 3069 * 3070 * This routine is to parse the SLI4 link-attention link fault code and 3071 * translate it into the base driver's read link attention mailbox command 3072 * status. 3073 * 3074 * Return: Link-attention status in terms of base driver's coding. 3075 **/ 3076static uint16_t 3077lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3078 struct lpfc_acqe_link *acqe_link) 3079{ 3080 uint16_t latt_fault; 3081 3082 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3083 case LPFC_ASYNC_LINK_FAULT_NONE: 3084 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3085 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3086 latt_fault = 0; 3087 break; 3088 default: 3089 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3090 "0398 Invalid link fault code: x%x\n", 3091 bf_get(lpfc_acqe_link_fault, acqe_link)); 3092 latt_fault = MBXERR_ERROR; 3093 break; 3094 } 3095 return latt_fault; 3096} 3097 3098/** 3099 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3100 * @phba: pointer to lpfc hba data structure. 3101 * @acqe_link: pointer to the async link completion queue entry. 3102 * 3103 * This routine is to parse the SLI4 link attention type and translate it 3104 * into the base driver's link attention type coding. 3105 * 3106 * Return: Link attention type in terms of base driver's coding. 3107 **/ 3108static uint8_t 3109lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3110 struct lpfc_acqe_link *acqe_link) 3111{ 3112 uint8_t att_type; 3113 3114 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3115 case LPFC_ASYNC_LINK_STATUS_DOWN: 3116 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3117 att_type = LPFC_ATT_LINK_DOWN; 3118 break; 3119 case LPFC_ASYNC_LINK_STATUS_UP: 3120 /* Ignore physical link up events - wait for logical link up */ 3121 att_type = LPFC_ATT_RESERVED; 3122 break; 3123 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3124 att_type = LPFC_ATT_LINK_UP; 3125 break; 3126 default: 3127 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3128 "0399 Invalid link attention type: x%x\n", 3129 bf_get(lpfc_acqe_link_status, acqe_link)); 3130 att_type = LPFC_ATT_RESERVED; 3131 break; 3132 } 3133 return att_type; 3134} 3135 3136/** 3137 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3138 * @phba: pointer to lpfc hba data structure. 3139 * @acqe_link: pointer to the async link completion queue entry. 3140 * 3141 * This routine is to parse the SLI4 link-attention link speed and translate 3142 * it into the base driver's link-attention link speed coding. 3143 * 3144 * Return: Link-attention link speed in terms of base driver's coding. 3145 **/ 3146static uint8_t 3147lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3148 struct lpfc_acqe_link *acqe_link) 3149{ 3150 uint8_t link_speed; 3151 3152 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3153 case LPFC_ASYNC_LINK_SPEED_ZERO: 3154 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3155 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3156 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3157 break; 3158 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3159 link_speed = LPFC_LINK_SPEED_1GHZ; 3160 break; 3161 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3162 link_speed = LPFC_LINK_SPEED_10GHZ; 3163 break; 3164 default: 3165 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3166 "0483 Invalid link-attention link speed: x%x\n", 3167 bf_get(lpfc_acqe_link_speed, acqe_link)); 3168 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3169 break; 3170 } 3171 return link_speed; 3172} 3173 3174/** 3175 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 3176 * @phba: pointer to lpfc hba data structure. 3177 * @acqe_link: pointer to the async link completion queue entry. 3178 * 3179 * This routine is to handle the SLI4 asynchronous FCoE link event. 3180 **/ 3181static void 3182lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3183 struct lpfc_acqe_link *acqe_link) 3184{ 3185 struct lpfc_dmabuf *mp; 3186 LPFC_MBOXQ_t *pmb; 3187 MAILBOX_t *mb; 3188 struct lpfc_mbx_read_top *la; 3189 uint8_t att_type; 3190 int rc; 3191 3192 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3193 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 3194 return; 3195 phba->fcoe_eventtag = acqe_link->event_tag; 3196 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3197 if (!pmb) { 3198 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3199 "0395 The mboxq allocation failed\n"); 3200 return; 3201 } 3202 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3203 if (!mp) { 3204 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3205 "0396 The lpfc_dmabuf allocation failed\n"); 3206 goto out_free_pmb; 3207 } 3208 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3209 if (!mp->virt) { 3210 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3211 "0397 The mbuf allocation failed\n"); 3212 goto out_free_dmabuf; 3213 } 3214 3215 /* Cleanup any outstanding ELS commands */ 3216 lpfc_els_flush_all_cmd(phba); 3217 3218 /* Block ELS IOCBs until we have done process link event */ 3219 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3220 3221 /* Update link event statistics */ 3222 phba->sli.slistat.link_event++; 3223 3224 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3225 lpfc_read_topology(phba, pmb, mp); 3226 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3227 pmb->vport = phba->pport; 3228 3229 /* Keep the link status for extra SLI4 state machine reference */ 3230 phba->sli4_hba.link_state.speed = 3231 bf_get(lpfc_acqe_link_speed, acqe_link); 3232 phba->sli4_hba.link_state.duplex = 3233 bf_get(lpfc_acqe_link_duplex, acqe_link); 3234 phba->sli4_hba.link_state.status = 3235 bf_get(lpfc_acqe_link_status, acqe_link); 3236 phba->sli4_hba.link_state.type = 3237 bf_get(lpfc_acqe_link_type, acqe_link); 3238 phba->sli4_hba.link_state.number = 3239 bf_get(lpfc_acqe_link_number, acqe_link); 3240 phba->sli4_hba.link_state.fault = 3241 bf_get(lpfc_acqe_link_fault, acqe_link); 3242 phba->sli4_hba.link_state.logical_speed = 3243 bf_get(lpfc_acqe_logical_link_speed, acqe_link); 3244 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3245 "2900 Async FC/FCoE Link event - Speed:%dGBit " 3246 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 3247 "Logical speed:%dMbps Fault:%d\n", 3248 phba->sli4_hba.link_state.speed, 3249 phba->sli4_hba.link_state.topology, 3250 phba->sli4_hba.link_state.status, 3251 phba->sli4_hba.link_state.type, 3252 phba->sli4_hba.link_state.number, 3253 phba->sli4_hba.link_state.logical_speed * 10, 3254 phba->sli4_hba.link_state.fault); 3255 /* 3256 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 3257 * topology info. Note: Optional for non FC-AL ports. 3258 */ 3259 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3260 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3261 if (rc == MBX_NOT_FINISHED) 3262 goto out_free_dmabuf; 3263 return; 3264 } 3265 /* 3266 * For FCoE Mode: fill in all the topology information we need and call 3267 * the READ_TOPOLOGY completion routine to continue without actually 3268 * sending the READ_TOPOLOGY mailbox command to the port. 3269 */ 3270 /* Parse and translate status field */ 3271 mb = &pmb->u.mb; 3272 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3273 3274 /* Parse and translate link attention fields */ 3275 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3276 la->eventTag = acqe_link->event_tag; 3277 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 3278 bf_set(lpfc_mbx_read_top_link_spd, la, 3279 lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); 3280 3281 /* Fake the the following irrelvant fields */ 3282 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 3283 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 3284 bf_set(lpfc_mbx_read_top_il, la, 0); 3285 bf_set(lpfc_mbx_read_top_pb, la, 0); 3286 bf_set(lpfc_mbx_read_top_fa, la, 0); 3287 bf_set(lpfc_mbx_read_top_mm, la, 0); 3288 3289 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3290 lpfc_mbx_cmpl_read_topology(phba, pmb); 3291 3292 return; 3293 3294out_free_dmabuf: 3295 kfree(mp); 3296out_free_pmb: 3297 mempool_free(pmb, phba->mbox_mem_pool); 3298} 3299 3300/** 3301 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 3302 * @phba: pointer to lpfc hba data structure. 3303 * @acqe_fc: pointer to the async fc completion queue entry. 3304 * 3305 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 3306 * that the event was received and then issue a read_topology mailbox command so 3307 * that the rest of the driver will treat it the same as SLI3. 3308 **/ 3309static void 3310lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 3311{ 3312 struct lpfc_dmabuf *mp; 3313 LPFC_MBOXQ_t *pmb; 3314 int rc; 3315 3316 if (bf_get(lpfc_trailer_type, acqe_fc) != 3317 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 3318 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3319 "2895 Non FC link Event detected.(%d)\n", 3320 bf_get(lpfc_trailer_type, acqe_fc)); 3321 return; 3322 } 3323 /* Keep the link status for extra SLI4 state machine reference */ 3324 phba->sli4_hba.link_state.speed = 3325 bf_get(lpfc_acqe_fc_la_speed, acqe_fc); 3326 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 3327 phba->sli4_hba.link_state.topology = 3328 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 3329 phba->sli4_hba.link_state.status = 3330 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 3331 phba->sli4_hba.link_state.type = 3332 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 3333 phba->sli4_hba.link_state.number = 3334 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 3335 phba->sli4_hba.link_state.fault = 3336 bf_get(lpfc_acqe_link_fault, acqe_fc); 3337 phba->sli4_hba.link_state.logical_speed = 3338 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc); 3339 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3340 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 3341 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 3342 "%dMbps Fault:%d\n", 3343 phba->sli4_hba.link_state.speed, 3344 phba->sli4_hba.link_state.topology, 3345 phba->sli4_hba.link_state.status, 3346 phba->sli4_hba.link_state.type, 3347 phba->sli4_hba.link_state.number, 3348 phba->sli4_hba.link_state.logical_speed * 10, 3349 phba->sli4_hba.link_state.fault); 3350 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3351 if (!pmb) { 3352 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3353 "2897 The mboxq allocation failed\n"); 3354 return; 3355 } 3356 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3357 if (!mp) { 3358 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3359 "2898 The lpfc_dmabuf allocation failed\n"); 3360 goto out_free_pmb; 3361 } 3362 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3363 if (!mp->virt) { 3364 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3365 "2899 The mbuf allocation failed\n"); 3366 goto out_free_dmabuf; 3367 } 3368 3369 /* Cleanup any outstanding ELS commands */ 3370 lpfc_els_flush_all_cmd(phba); 3371 3372 /* Block ELS IOCBs until we have done process link event */ 3373 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3374 3375 /* Update link event statistics */ 3376 phba->sli.slistat.link_event++; 3377 3378 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3379 lpfc_read_topology(phba, pmb, mp); 3380 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3381 pmb->vport = phba->pport; 3382 3383 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3384 if (rc == MBX_NOT_FINISHED) 3385 goto out_free_dmabuf; 3386 return; 3387 3388out_free_dmabuf: 3389 kfree(mp); 3390out_free_pmb: 3391 mempool_free(pmb, phba->mbox_mem_pool); 3392} 3393 3394/** 3395 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 3396 * @phba: pointer to lpfc hba data structure. 3397 * @acqe_fc: pointer to the async SLI completion queue entry. 3398 * 3399 * This routine is to handle the SLI4 asynchronous SLI events. 3400 **/ 3401static void 3402lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 3403{ 3404 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3405 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 3406 "x%08x SLI Event Type:%d", 3407 acqe_sli->event_data1, acqe_sli->event_data2, 3408 bf_get(lpfc_trailer_type, acqe_sli)); 3409 return; 3410} 3411 3412/** 3413 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3414 * @vport: pointer to vport data structure. 3415 * 3416 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3417 * response to a CVL event. 3418 * 3419 * Return the pointer to the ndlp with the vport if successful, otherwise 3420 * return NULL. 3421 **/ 3422static struct lpfc_nodelist * 3423lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3424{ 3425 struct lpfc_nodelist *ndlp; 3426 struct Scsi_Host *shost; 3427 struct lpfc_hba *phba; 3428 3429 if (!vport) 3430 return NULL; 3431 phba = vport->phba; 3432 if (!phba) 3433 return NULL; 3434 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3435 if (!ndlp) { 3436 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3437 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3438 if (!ndlp) 3439 return 0; 3440 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3441 /* Set the node type */ 3442 ndlp->nlp_type |= NLP_FABRIC; 3443 /* Put ndlp onto node list */ 3444 lpfc_enqueue_node(vport, ndlp); 3445 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3446 /* re-setup ndlp without removing from node list */ 3447 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3448 if (!ndlp) 3449 return 0; 3450 } 3451 if ((phba->pport->port_state < LPFC_FLOGI) && 3452 (phba->pport->port_state != LPFC_VPORT_FAILED)) 3453 return NULL; 3454 /* If virtual link is not yet instantiated ignore CVL */ 3455 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 3456 && (vport->port_state != LPFC_VPORT_FAILED)) 3457 return NULL; 3458 shost = lpfc_shost_from_vport(vport); 3459 if (!shost) 3460 return NULL; 3461 lpfc_linkdown_port(vport); 3462 lpfc_cleanup_pending_mbox(vport); 3463 spin_lock_irq(shost->host_lock); 3464 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3465 spin_unlock_irq(shost->host_lock); 3466 3467 return ndlp; 3468} 3469 3470/** 3471 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3472 * @vport: pointer to lpfc hba data structure. 3473 * 3474 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3475 * response to a FCF dead event. 3476 **/ 3477static void 3478lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3479{ 3480 struct lpfc_vport **vports; 3481 int i; 3482 3483 vports = lpfc_create_vport_work_array(phba); 3484 if (vports) 3485 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3486 lpfc_sli4_perform_vport_cvl(vports[i]); 3487 lpfc_destroy_vport_work_array(phba, vports); 3488} 3489 3490/** 3491 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 3492 * @phba: pointer to lpfc hba data structure. 3493 * @acqe_link: pointer to the async fcoe completion queue entry. 3494 * 3495 * This routine is to handle the SLI4 asynchronous fcoe event. 3496 **/ 3497static void 3498lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 3499 struct lpfc_acqe_fip *acqe_fip) 3500{ 3501 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 3502 int rc; 3503 struct lpfc_vport *vport; 3504 struct lpfc_nodelist *ndlp; 3505 struct Scsi_Host *shost; 3506 int active_vlink_present; 3507 struct lpfc_vport **vports; 3508 int i; 3509 3510 phba->fc_eventTag = acqe_fip->event_tag; 3511 phba->fcoe_eventtag = acqe_fip->event_tag; 3512 switch (event_type) { 3513 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 3514 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 3515 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 3516 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3517 LOG_DISCOVERY, 3518 "2546 New FCF event, evt_tag:x%x, " 3519 "index:x%x\n", 3520 acqe_fip->event_tag, 3521 acqe_fip->index); 3522 else 3523 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 3524 LOG_DISCOVERY, 3525 "2788 FCF param modified event, " 3526 "evt_tag:x%x, index:x%x\n", 3527 acqe_fip->event_tag, 3528 acqe_fip->index); 3529 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3530 /* 3531 * During period of FCF discovery, read the FCF 3532 * table record indexed by the event to update 3533 * FCF roundrobin failover eligible FCF bmask. 3534 */ 3535 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3536 LOG_DISCOVERY, 3537 "2779 Read FCF (x%x) for updating " 3538 "roundrobin FCF failover bmask\n", 3539 acqe_fip->index); 3540 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 3541 } 3542 3543 /* If the FCF discovery is in progress, do nothing. */ 3544 spin_lock_irq(&phba->hbalock); 3545 if (phba->hba_flag & FCF_TS_INPROG) { 3546 spin_unlock_irq(&phba->hbalock); 3547 break; 3548 } 3549 /* If fast FCF failover rescan event is pending, do nothing */ 3550 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 3551 spin_unlock_irq(&phba->hbalock); 3552 break; 3553 } 3554 3555 /* If the FCF has been in discovered state, do nothing. */ 3556 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 3557 spin_unlock_irq(&phba->hbalock); 3558 break; 3559 } 3560 spin_unlock_irq(&phba->hbalock); 3561 3562 /* Otherwise, scan the entire FCF table and re-discover SAN */ 3563 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3564 "2770 Start FCF table scan per async FCF " 3565 "event, evt_tag:x%x, index:x%x\n", 3566 acqe_fip->event_tag, acqe_fip->index); 3567 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3568 LPFC_FCOE_FCF_GET_FIRST); 3569 if (rc) 3570 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3571 "2547 Issue FCF scan read FCF mailbox " 3572 "command failed (x%x)\n", rc); 3573 break; 3574 3575 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 3576 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3577 "2548 FCF Table full count 0x%x tag 0x%x\n", 3578 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 3579 acqe_fip->event_tag); 3580 break; 3581 3582 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 3583 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3584 "2549 FCF (x%x) disconnected from network, " 3585 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 3586 /* 3587 * If we are in the middle of FCF failover process, clear 3588 * the corresponding FCF bit in the roundrobin bitmap. 3589 */ 3590 spin_lock_irq(&phba->hbalock); 3591 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3592 spin_unlock_irq(&phba->hbalock); 3593 /* Update FLOGI FCF failover eligible FCF bmask */ 3594 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 3595 break; 3596 } 3597 spin_unlock_irq(&phba->hbalock); 3598 3599 /* If the event is not for currently used fcf do nothing */ 3600 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 3601 break; 3602 3603 /* 3604 * Otherwise, request the port to rediscover the entire FCF 3605 * table for a fast recovery from case that the current FCF 3606 * is no longer valid as we are not in the middle of FCF 3607 * failover process already. 3608 */ 3609 spin_lock_irq(&phba->hbalock); 3610 /* Mark the fast failover process in progress */ 3611 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 3612 spin_unlock_irq(&phba->hbalock); 3613 3614 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3615 "2771 Start FCF fast failover process due to " 3616 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 3617 "\n", acqe_fip->event_tag, acqe_fip->index); 3618 rc = lpfc_sli4_redisc_fcf_table(phba); 3619 if (rc) { 3620 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3621 LOG_DISCOVERY, 3622 "2772 Issue FCF rediscover mabilbox " 3623 "command failed, fail through to FCF " 3624 "dead event\n"); 3625 spin_lock_irq(&phba->hbalock); 3626 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 3627 spin_unlock_irq(&phba->hbalock); 3628 /* 3629 * Last resort will fail over by treating this 3630 * as a link down to FCF registration. 3631 */ 3632 lpfc_sli4_fcf_dead_failthrough(phba); 3633 } else { 3634 /* Reset FCF roundrobin bmask for new discovery */ 3635 memset(phba->fcf.fcf_rr_bmask, 0, 3636 sizeof(*phba->fcf.fcf_rr_bmask)); 3637 /* 3638 * Handling fast FCF failover to a DEAD FCF event is 3639 * considered equalivant to receiving CVL to all vports. 3640 */ 3641 lpfc_sli4_perform_all_vport_cvl(phba); 3642 } 3643 break; 3644 case LPFC_FIP_EVENT_TYPE_CVL: 3645 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3646 "2718 Clear Virtual Link Received for VPI 0x%x" 3647 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 3648 vport = lpfc_find_vport_by_vpid(phba, 3649 acqe_fip->index - phba->vpi_base); 3650 ndlp = lpfc_sli4_perform_vport_cvl(vport); 3651 if (!ndlp) 3652 break; 3653 active_vlink_present = 0; 3654 3655 vports = lpfc_create_vport_work_array(phba); 3656 if (vports) { 3657 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 3658 i++) { 3659 if ((!(vports[i]->fc_flag & 3660 FC_VPORT_CVL_RCVD)) && 3661 (vports[i]->port_state > LPFC_FDISC)) { 3662 active_vlink_present = 1; 3663 break; 3664 } 3665 } 3666 lpfc_destroy_vport_work_array(phba, vports); 3667 } 3668 3669 if (active_vlink_present) { 3670 /* 3671 * If there are other active VLinks present, 3672 * re-instantiate the Vlink using FDISC. 3673 */ 3674 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3675 shost = lpfc_shost_from_vport(vport); 3676 spin_lock_irq(shost->host_lock); 3677 ndlp->nlp_flag |= NLP_DELAY_TMO; 3678 spin_unlock_irq(shost->host_lock); 3679 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 3680 vport->port_state = LPFC_FDISC; 3681 } else { 3682 /* 3683 * Otherwise, we request port to rediscover 3684 * the entire FCF table for a fast recovery 3685 * from possible case that the current FCF 3686 * is no longer valid if we are not already 3687 * in the FCF failover process. 3688 */ 3689 spin_lock_irq(&phba->hbalock); 3690 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3691 spin_unlock_irq(&phba->hbalock); 3692 break; 3693 } 3694 /* Mark the fast failover process in progress */ 3695 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 3696 spin_unlock_irq(&phba->hbalock); 3697 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3698 LOG_DISCOVERY, 3699 "2773 Start FCF failover per CVL, " 3700 "evt_tag:x%x\n", acqe_fip->event_tag); 3701 rc = lpfc_sli4_redisc_fcf_table(phba); 3702 if (rc) { 3703 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3704 LOG_DISCOVERY, 3705 "2774 Issue FCF rediscover " 3706 "mabilbox command failed, " 3707 "through to CVL event\n"); 3708 spin_lock_irq(&phba->hbalock); 3709 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 3710 spin_unlock_irq(&phba->hbalock); 3711 /* 3712 * Last resort will be re-try on the 3713 * the current registered FCF entry. 3714 */ 3715 lpfc_retry_pport_discovery(phba); 3716 } else 3717 /* 3718 * Reset FCF roundrobin bmask for new 3719 * discovery. 3720 */ 3721 memset(phba->fcf.fcf_rr_bmask, 0, 3722 sizeof(*phba->fcf.fcf_rr_bmask)); 3723 } 3724 break; 3725 default: 3726 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3727 "0288 Unknown FCoE event type 0x%x event tag " 3728 "0x%x\n", event_type, acqe_fip->event_tag); 3729 break; 3730 } 3731} 3732 3733/** 3734 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 3735 * @phba: pointer to lpfc hba data structure. 3736 * @acqe_link: pointer to the async dcbx completion queue entry. 3737 * 3738 * This routine is to handle the SLI4 asynchronous dcbx event. 3739 **/ 3740static void 3741lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 3742 struct lpfc_acqe_dcbx *acqe_dcbx) 3743{ 3744 phba->fc_eventTag = acqe_dcbx->event_tag; 3745 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3746 "0290 The SLI4 DCBX asynchronous event is not " 3747 "handled yet\n"); 3748} 3749 3750/** 3751 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 3752 * @phba: pointer to lpfc hba data structure. 3753 * @acqe_link: pointer to the async grp5 completion queue entry. 3754 * 3755 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 3756 * is an asynchronous notified of a logical link speed change. The Port 3757 * reports the logical link speed in units of 10Mbps. 3758 **/ 3759static void 3760lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 3761 struct lpfc_acqe_grp5 *acqe_grp5) 3762{ 3763 uint16_t prev_ll_spd; 3764 3765 phba->fc_eventTag = acqe_grp5->event_tag; 3766 phba->fcoe_eventtag = acqe_grp5->event_tag; 3767 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 3768 phba->sli4_hba.link_state.logical_speed = 3769 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); 3770 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3771 "2789 GRP5 Async Event: Updating logical link speed " 3772 "from %dMbps to %dMbps\n", (prev_ll_spd * 10), 3773 (phba->sli4_hba.link_state.logical_speed*10)); 3774} 3775 3776/** 3777 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3778 * @phba: pointer to lpfc hba data structure. 3779 * 3780 * This routine is invoked by the worker thread to process all the pending 3781 * SLI4 asynchronous events. 3782 **/ 3783void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3784{ 3785 struct lpfc_cq_event *cq_event; 3786 3787 /* First, declare the async event has been handled */ 3788 spin_lock_irq(&phba->hbalock); 3789 phba->hba_flag &= ~ASYNC_EVENT; 3790 spin_unlock_irq(&phba->hbalock); 3791 /* Now, handle all the async events */ 3792 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3793 /* Get the first event from the head of the event queue */ 3794 spin_lock_irq(&phba->hbalock); 3795 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3796 cq_event, struct lpfc_cq_event, list); 3797 spin_unlock_irq(&phba->hbalock); 3798 /* Process the asynchronous event */ 3799 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3800 case LPFC_TRAILER_CODE_LINK: 3801 lpfc_sli4_async_link_evt(phba, 3802 &cq_event->cqe.acqe_link); 3803 break; 3804 case LPFC_TRAILER_CODE_FCOE: 3805 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 3806 break; 3807 case LPFC_TRAILER_CODE_DCBX: 3808 lpfc_sli4_async_dcbx_evt(phba, 3809 &cq_event->cqe.acqe_dcbx); 3810 break; 3811 case LPFC_TRAILER_CODE_GRP5: 3812 lpfc_sli4_async_grp5_evt(phba, 3813 &cq_event->cqe.acqe_grp5); 3814 break; 3815 case LPFC_TRAILER_CODE_FC: 3816 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 3817 break; 3818 case LPFC_TRAILER_CODE_SLI: 3819 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 3820 break; 3821 default: 3822 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3823 "1804 Invalid asynchrous event code: " 3824 "x%x\n", bf_get(lpfc_trailer_code, 3825 &cq_event->cqe.mcqe_cmpl)); 3826 break; 3827 } 3828 /* Free the completion event processed to the free pool */ 3829 lpfc_sli4_cq_event_release(phba, cq_event); 3830 } 3831} 3832 3833/** 3834 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 3835 * @phba: pointer to lpfc hba data structure. 3836 * 3837 * This routine is invoked by the worker thread to process FCF table 3838 * rediscovery pending completion event. 3839 **/ 3840void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 3841{ 3842 int rc; 3843 3844 spin_lock_irq(&phba->hbalock); 3845 /* Clear FCF rediscovery timeout event */ 3846 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 3847 /* Clear driver fast failover FCF record flag */ 3848 phba->fcf.failover_rec.flag = 0; 3849 /* Set state for FCF fast failover */ 3850 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 3851 spin_unlock_irq(&phba->hbalock); 3852 3853 /* Scan FCF table from the first entry to re-discover SAN */ 3854 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3855 "2777 Start post-quiescent FCF table scan\n"); 3856 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 3857 if (rc) 3858 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3859 "2747 Issue FCF scan read FCF mailbox " 3860 "command failed 0x%x\n", rc); 3861} 3862 3863/** 3864 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3865 * @phba: pointer to lpfc hba data structure. 3866 * @dev_grp: The HBA PCI-Device group number. 3867 * 3868 * This routine is invoked to set up the per HBA PCI-Device group function 3869 * API jump table entries. 3870 * 3871 * Return: 0 if success, otherwise -ENODEV 3872 **/ 3873int 3874lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3875{ 3876 int rc; 3877 3878 /* Set up lpfc PCI-device group */ 3879 phba->pci_dev_grp = dev_grp; 3880 3881 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3882 if (dev_grp == LPFC_PCI_DEV_OC) 3883 phba->sli_rev = LPFC_SLI_REV4; 3884 3885 /* Set up device INIT API function jump table */ 3886 rc = lpfc_init_api_table_setup(phba, dev_grp); 3887 if (rc) 3888 return -ENODEV; 3889 /* Set up SCSI API function jump table */ 3890 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3891 if (rc) 3892 return -ENODEV; 3893 /* Set up SLI API function jump table */ 3894 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3895 if (rc) 3896 return -ENODEV; 3897 /* Set up MBOX API function jump table */ 3898 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3899 if (rc) 3900 return -ENODEV; 3901 3902 return 0; 3903} 3904 3905/** 3906 * lpfc_log_intr_mode - Log the active interrupt mode 3907 * @phba: pointer to lpfc hba data structure. 3908 * @intr_mode: active interrupt mode adopted. 3909 * 3910 * This routine it invoked to log the currently used active interrupt mode 3911 * to the device. 3912 **/ 3913static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3914{ 3915 switch (intr_mode) { 3916 case 0: 3917 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3918 "0470 Enable INTx interrupt mode.\n"); 3919 break; 3920 case 1: 3921 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3922 "0481 Enabled MSI interrupt mode.\n"); 3923 break; 3924 case 2: 3925 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3926 "0480 Enabled MSI-X interrupt mode.\n"); 3927 break; 3928 default: 3929 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3930 "0482 Illegal interrupt mode.\n"); 3931 break; 3932 } 3933 return; 3934} 3935 3936/** 3937 * lpfc_enable_pci_dev - Enable a generic PCI device. 3938 * @phba: pointer to lpfc hba data structure. 3939 * 3940 * This routine is invoked to enable the PCI device that is common to all 3941 * PCI devices. 3942 * 3943 * Return codes 3944 * 0 - successful 3945 * other values - error 3946 **/ 3947static int 3948lpfc_enable_pci_dev(struct lpfc_hba *phba) 3949{ 3950 struct pci_dev *pdev; 3951 int bars; 3952 3953 /* Obtain PCI device reference */ 3954 if (!phba->pcidev) 3955 goto out_error; 3956 else 3957 pdev = phba->pcidev; 3958 /* Select PCI BARs */ 3959 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3960 /* Enable PCI device */ 3961 if (pci_enable_device_mem(pdev)) 3962 goto out_error; 3963 /* Request PCI resource for the device */ 3964 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3965 goto out_disable_device; 3966 /* Set up device as PCI master and save state for EEH */ 3967 pci_set_master(pdev); 3968 pci_try_set_mwi(pdev); 3969 pci_save_state(pdev); 3970 3971 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 3972 if (pci_find_capability(pdev, PCI_CAP_ID_EXP)) 3973 pdev->needs_freset = 1; 3974 3975 return 0; 3976 3977out_disable_device: 3978 pci_disable_device(pdev); 3979out_error: 3980 return -ENODEV; 3981} 3982 3983/** 3984 * lpfc_disable_pci_dev - Disable a generic PCI device. 3985 * @phba: pointer to lpfc hba data structure. 3986 * 3987 * This routine is invoked to disable the PCI device that is common to all 3988 * PCI devices. 3989 **/ 3990static void 3991lpfc_disable_pci_dev(struct lpfc_hba *phba) 3992{ 3993 struct pci_dev *pdev; 3994 int bars; 3995 3996 /* Obtain PCI device reference */ 3997 if (!phba->pcidev) 3998 return; 3999 else 4000 pdev = phba->pcidev; 4001 /* Select PCI BARs */ 4002 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4003 /* Release PCI resource and disable PCI device */ 4004 pci_release_selected_regions(pdev, bars); 4005 pci_disable_device(pdev); 4006 /* Null out PCI private reference to driver */ 4007 pci_set_drvdata(pdev, NULL); 4008 4009 return; 4010} 4011 4012/** 4013 * lpfc_reset_hba - Reset a hba 4014 * @phba: pointer to lpfc hba data structure. 4015 * 4016 * This routine is invoked to reset a hba device. It brings the HBA 4017 * offline, performs a board restart, and then brings the board back 4018 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 4019 * on outstanding mailbox commands. 4020 **/ 4021void 4022lpfc_reset_hba(struct lpfc_hba *phba) 4023{ 4024 /* If resets are disabled then set error state and return. */ 4025 if (!phba->cfg_enable_hba_reset) { 4026 phba->link_state = LPFC_HBA_ERROR; 4027 return; 4028 } 4029 lpfc_offline_prep(phba); 4030 lpfc_offline(phba); 4031 lpfc_sli_brdrestart(phba); 4032 lpfc_online(phba); 4033 lpfc_unblock_mgmt_io(phba); 4034} 4035 4036/** 4037 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 4038 * @phba: pointer to lpfc hba data structure. 4039 * 4040 * This routine is invoked to set up the driver internal resources specific to 4041 * support the SLI-3 HBA device it attached to. 4042 * 4043 * Return codes 4044 * 0 - successful 4045 * other values - error 4046 **/ 4047static int 4048lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 4049{ 4050 struct lpfc_sli *psli; 4051 4052 /* 4053 * Initialize timers used by driver 4054 */ 4055 4056 /* Heartbeat timer */ 4057 init_timer(&phba->hb_tmofunc); 4058 phba->hb_tmofunc.function = lpfc_hb_timeout; 4059 phba->hb_tmofunc.data = (unsigned long)phba; 4060 4061 psli = &phba->sli; 4062 /* MBOX heartbeat timer */ 4063 init_timer(&psli->mbox_tmo); 4064 psli->mbox_tmo.function = lpfc_mbox_timeout; 4065 psli->mbox_tmo.data = (unsigned long) phba; 4066 /* FCP polling mode timer */ 4067 init_timer(&phba->fcp_poll_timer); 4068 phba->fcp_poll_timer.function = lpfc_poll_timeout; 4069 phba->fcp_poll_timer.data = (unsigned long) phba; 4070 /* Fabric block timer */ 4071 init_timer(&phba->fabric_block_timer); 4072 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4073 phba->fabric_block_timer.data = (unsigned long) phba; 4074 /* EA polling mode timer */ 4075 init_timer(&phba->eratt_poll); 4076 phba->eratt_poll.function = lpfc_poll_eratt; 4077 phba->eratt_poll.data = (unsigned long) phba; 4078 4079 /* Host attention work mask setup */ 4080 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 4081 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 4082 4083 /* Get all the module params for configuring this host */ 4084 lpfc_get_cfgparam(phba); 4085 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 4086 phba->menlo_flag |= HBA_MENLO_SUPPORT; 4087 /* check for menlo minimum sg count */ 4088 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 4089 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 4090 } 4091 4092 /* 4093 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4094 * used to create the sg_dma_buf_pool must be dynamically calculated. 4095 * 2 segments are added since the IOCB needs a command and response bde. 4096 */ 4097 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4098 sizeof(struct fcp_rsp) + 4099 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 4100 4101 if (phba->cfg_enable_bg) { 4102 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 4103 phba->cfg_sg_dma_buf_size += 4104 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 4105 } 4106 4107 /* Also reinitialize the host templates with new values. */ 4108 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4109 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4110 4111 phba->max_vpi = LPFC_MAX_VPI; 4112 /* This will be set to correct value after config_port mbox */ 4113 phba->max_vports = 0; 4114 4115 /* 4116 * Initialize the SLI Layer to run with lpfc HBAs. 4117 */ 4118 lpfc_sli_setup(phba); 4119 lpfc_sli_queue_setup(phba); 4120 4121 /* Allocate device driver memory */ 4122 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 4123 return -ENOMEM; 4124 4125 return 0; 4126} 4127 4128/** 4129 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 4130 * @phba: pointer to lpfc hba data structure. 4131 * 4132 * This routine is invoked to unset the driver internal resources set up 4133 * specific for supporting the SLI-3 HBA device it attached to. 4134 **/ 4135static void 4136lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 4137{ 4138 /* Free device driver memory allocated */ 4139 lpfc_mem_free_all(phba); 4140 4141 return; 4142} 4143 4144/** 4145 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 4146 * @phba: pointer to lpfc hba data structure. 4147 * 4148 * This routine is invoked to set up the driver internal resources specific to 4149 * support the SLI-4 HBA device it attached to. 4150 * 4151 * Return codes 4152 * 0 - successful 4153 * other values - error 4154 **/ 4155static int 4156lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 4157{ 4158 struct lpfc_sli *psli; 4159 LPFC_MBOXQ_t *mboxq; 4160 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 4161 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 4162 struct lpfc_mqe *mqe; 4163 int longs, sli_family; 4164 4165 /* Before proceed, wait for POST done and device ready */ 4166 rc = lpfc_sli4_post_status_check(phba); 4167 if (rc) 4168 return -ENODEV; 4169 4170 /* 4171 * Initialize timers used by driver 4172 */ 4173 4174 /* Heartbeat timer */ 4175 init_timer(&phba->hb_tmofunc); 4176 phba->hb_tmofunc.function = lpfc_hb_timeout; 4177 phba->hb_tmofunc.data = (unsigned long)phba; 4178 init_timer(&phba->rrq_tmr); 4179 phba->rrq_tmr.function = lpfc_rrq_timeout; 4180 phba->rrq_tmr.data = (unsigned long)phba; 4181 4182 psli = &phba->sli; 4183 /* MBOX heartbeat timer */ 4184 init_timer(&psli->mbox_tmo); 4185 psli->mbox_tmo.function = lpfc_mbox_timeout; 4186 psli->mbox_tmo.data = (unsigned long) phba; 4187 /* Fabric block timer */ 4188 init_timer(&phba->fabric_block_timer); 4189 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4190 phba->fabric_block_timer.data = (unsigned long) phba; 4191 /* EA polling mode timer */ 4192 init_timer(&phba->eratt_poll); 4193 phba->eratt_poll.function = lpfc_poll_eratt; 4194 phba->eratt_poll.data = (unsigned long) phba; 4195 /* FCF rediscover timer */ 4196 init_timer(&phba->fcf.redisc_wait); 4197 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4198 phba->fcf.redisc_wait.data = (unsigned long)phba; 4199 4200 /* 4201 * We need to do a READ_CONFIG mailbox command here before 4202 * calling lpfc_get_cfgparam. For VFs this will report the 4203 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 4204 * All of the resources allocated 4205 * for this Port are tied to these values. 4206 */ 4207 /* Get all the module params for configuring this host */ 4208 lpfc_get_cfgparam(phba); 4209 phba->max_vpi = LPFC_MAX_VPI; 4210 /* This will be set to correct value after the read_config mbox */ 4211 phba->max_vports = 0; 4212 4213 /* Program the default value of vlan_id and fc_map */ 4214 phba->valid_vlan = 0; 4215 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4216 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4217 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4218 4219 /* 4220 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4221 * used to create the sg_dma_buf_pool must be dynamically calculated. 4222 * 2 segments are added since the IOCB needs a command and response bde. 4223 * To insure that the scsi sgl does not cross a 4k page boundary only 4224 * sgl sizes of must be a power of 2. 4225 */ 4226 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 4227 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge))); 4228 4229 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf); 4230 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4231 switch (sli_family) { 4232 case LPFC_SLI_INTF_FAMILY_BE2: 4233 case LPFC_SLI_INTF_FAMILY_BE3: 4234 /* There is a single hint for BE - 2 pages per BPL. */ 4235 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) == 4236 LPFC_SLI_INTF_SLI_HINT1_1) 4237 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4238 break; 4239 case LPFC_SLI_INTF_FAMILY_LNCR_A0: 4240 case LPFC_SLI_INTF_FAMILY_LNCR_B0: 4241 default: 4242 break; 4243 } 4244 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4245 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4246 dma_buf_size = dma_buf_size << 1) 4247 ; 4248 if (dma_buf_size == max_buf_size) 4249 phba->cfg_sg_seg_cnt = (dma_buf_size - 4250 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4251 (2 * sizeof(struct sli4_sge))) / 4252 sizeof(struct sli4_sge); 4253 phba->cfg_sg_dma_buf_size = dma_buf_size; 4254 4255 /* Initialize buffer queue management fields */ 4256 hbq_count = lpfc_sli_hbq_count(); 4257 for (i = 0; i < hbq_count; ++i) 4258 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4259 INIT_LIST_HEAD(&phba->rb_pend_list); 4260 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4261 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4262 4263 /* 4264 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4265 */ 4266 /* Initialize the Abort scsi buffer list used by driver */ 4267 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4268 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4269 /* This abort list used by worker thread */ 4270 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4271 4272 /* 4273 * Initialize dirver internal slow-path work queues 4274 */ 4275 4276 /* Driver internel slow-path CQ Event pool */ 4277 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4278 /* Response IOCB work queue list */ 4279 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4280 /* Asynchronous event CQ Event work queue list */ 4281 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4282 /* Fast-path XRI aborted CQ Event work queue list */ 4283 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4284 /* Slow-path XRI aborted CQ Event work queue list */ 4285 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4286 /* Receive queue CQ Event work queue list */ 4287 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4288 4289 /* Initialize the driver internal SLI layer lists. */ 4290 lpfc_sli_setup(phba); 4291 lpfc_sli_queue_setup(phba); 4292 4293 /* Allocate device driver memory */ 4294 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4295 if (rc) 4296 return -ENOMEM; 4297 4298 /* IF Type 2 ports get initialized now. */ 4299 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4300 LPFC_SLI_INTF_IF_TYPE_2) { 4301 rc = lpfc_pci_function_reset(phba); 4302 if (unlikely(rc)) 4303 return -ENODEV; 4304 } 4305 4306 /* Create the bootstrap mailbox command */ 4307 rc = lpfc_create_bootstrap_mbox(phba); 4308 if (unlikely(rc)) 4309 goto out_free_mem; 4310 4311 /* Set up the host's endian order with the device. */ 4312 rc = lpfc_setup_endian_order(phba); 4313 if (unlikely(rc)) 4314 goto out_free_bsmbx; 4315 4316 /* Set up the hba's configuration parameters. */ 4317 rc = lpfc_sli4_read_config(phba); 4318 if (unlikely(rc)) 4319 goto out_free_bsmbx; 4320 4321 /* IF Type 0 ports get initialized now. */ 4322 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4323 LPFC_SLI_INTF_IF_TYPE_0) { 4324 rc = lpfc_pci_function_reset(phba); 4325 if (unlikely(rc)) 4326 goto out_free_bsmbx; 4327 } 4328 4329 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4330 GFP_KERNEL); 4331 if (!mboxq) { 4332 rc = -ENOMEM; 4333 goto out_free_bsmbx; 4334 } 4335 4336 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 4337 lpfc_supported_pages(mboxq); 4338 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4339 if (!rc) { 4340 mqe = &mboxq->u.mqe; 4341 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4342 LPFC_MAX_SUPPORTED_PAGES); 4343 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4344 switch (pn_page[i]) { 4345 case LPFC_SLI4_PARAMETERS: 4346 phba->sli4_hba.pc_sli4_params.supported = 1; 4347 break; 4348 default: 4349 break; 4350 } 4351 } 4352 /* Read the port's SLI4 Parameters capabilities if supported. */ 4353 if (phba->sli4_hba.pc_sli4_params.supported) 4354 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4355 if (rc) { 4356 mempool_free(mboxq, phba->mbox_mem_pool); 4357 rc = -EIO; 4358 goto out_free_bsmbx; 4359 } 4360 } 4361 /* 4362 * Get sli4 parameters that override parameters from Port capabilities. 4363 * If this call fails it is not a critical error so continue loading. 4364 */ 4365 lpfc_get_sli4_parameters(phba, mboxq); 4366 mempool_free(mboxq, phba->mbox_mem_pool); 4367 /* Create all the SLI4 queues */ 4368 rc = lpfc_sli4_queue_create(phba); 4369 if (rc) 4370 goto out_free_bsmbx; 4371 4372 /* Create driver internal CQE event pool */ 4373 rc = lpfc_sli4_cq_event_pool_create(phba); 4374 if (rc) 4375 goto out_destroy_queue; 4376 4377 /* Initialize and populate the iocb list per host */ 4378 rc = lpfc_init_sgl_list(phba); 4379 if (rc) { 4380 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4381 "1400 Failed to initialize sgl list.\n"); 4382 goto out_destroy_cq_event_pool; 4383 } 4384 rc = lpfc_init_active_sgl_array(phba); 4385 if (rc) { 4386 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4387 "1430 Failed to initialize sgl list.\n"); 4388 goto out_free_sgl_list; 4389 } 4390 4391 rc = lpfc_sli4_init_rpi_hdrs(phba); 4392 if (rc) { 4393 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4394 "1432 Failed to initialize rpi headers.\n"); 4395 goto out_free_active_sgl; 4396 } 4397 4398 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 4399 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 4400 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 4401 GFP_KERNEL); 4402 if (!phba->fcf.fcf_rr_bmask) { 4403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4404 "2759 Failed allocate memory for FCF round " 4405 "robin failover bmask\n"); 4406 rc = -ENOMEM; 4407 goto out_remove_rpi_hdrs; 4408 } 4409 4410 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 4411 phba->cfg_fcp_eq_count), GFP_KERNEL); 4412 if (!phba->sli4_hba.fcp_eq_hdl) { 4413 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4414 "2572 Failed allocate memory for fast-path " 4415 "per-EQ handle array\n"); 4416 rc = -ENOMEM; 4417 goto out_free_fcf_rr_bmask; 4418 } 4419 4420 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 4421 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 4422 if (!phba->sli4_hba.msix_entries) { 4423 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4424 "2573 Failed allocate memory for msi-x " 4425 "interrupt vector entries\n"); 4426 rc = -ENOMEM; 4427 goto out_free_fcp_eq_hdl; 4428 } 4429 4430 return rc; 4431 4432out_free_fcp_eq_hdl: 4433 kfree(phba->sli4_hba.fcp_eq_hdl); 4434out_free_fcf_rr_bmask: 4435 kfree(phba->fcf.fcf_rr_bmask); 4436out_remove_rpi_hdrs: 4437 lpfc_sli4_remove_rpi_hdrs(phba); 4438out_free_active_sgl: 4439 lpfc_free_active_sgl(phba); 4440out_free_sgl_list: 4441 lpfc_free_sgl_list(phba); 4442out_destroy_cq_event_pool: 4443 lpfc_sli4_cq_event_pool_destroy(phba); 4444out_destroy_queue: 4445 lpfc_sli4_queue_destroy(phba); 4446out_free_bsmbx: 4447 lpfc_destroy_bootstrap_mbox(phba); 4448out_free_mem: 4449 lpfc_mem_free(phba); 4450 return rc; 4451} 4452 4453/** 4454 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 4455 * @phba: pointer to lpfc hba data structure. 4456 * 4457 * This routine is invoked to unset the driver internal resources set up 4458 * specific for supporting the SLI-4 HBA device it attached to. 4459 **/ 4460static void 4461lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 4462{ 4463 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4464 4465 /* Free memory allocated for msi-x interrupt vector entries */ 4466 kfree(phba->sli4_hba.msix_entries); 4467 4468 /* Free memory allocated for fast-path work queue handles */ 4469 kfree(phba->sli4_hba.fcp_eq_hdl); 4470 4471 /* Free the allocated rpi headers. */ 4472 lpfc_sli4_remove_rpi_hdrs(phba); 4473 lpfc_sli4_remove_rpis(phba); 4474 4475 /* Free eligible FCF index bmask */ 4476 kfree(phba->fcf.fcf_rr_bmask); 4477 4478 /* Free the ELS sgl list */ 4479 lpfc_free_active_sgl(phba); 4480 lpfc_free_sgl_list(phba); 4481 4482 /* Free the SCSI sgl management array */ 4483 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4484 4485 /* Free the SLI4 queues */ 4486 lpfc_sli4_queue_destroy(phba); 4487 4488 /* Free the completion queue EQ event pool */ 4489 lpfc_sli4_cq_event_release_all(phba); 4490 lpfc_sli4_cq_event_pool_destroy(phba); 4491 4492 /* Free the bsmbx region. */ 4493 lpfc_destroy_bootstrap_mbox(phba); 4494 4495 /* Free the SLI Layer memory with SLI4 HBAs */ 4496 lpfc_mem_free_all(phba); 4497 4498 /* Free the current connect table */ 4499 list_for_each_entry_safe(conn_entry, next_conn_entry, 4500 &phba->fcf_conn_rec_list, list) { 4501 list_del_init(&conn_entry->list); 4502 kfree(conn_entry); 4503 } 4504 4505 return; 4506} 4507 4508/** 4509 * lpfc_init_api_table_setup - Set up init api function jump table 4510 * @phba: The hba struct for which this call is being executed. 4511 * @dev_grp: The HBA PCI-Device group number. 4512 * 4513 * This routine sets up the device INIT interface API function jump table 4514 * in @phba struct. 4515 * 4516 * Returns: 0 - success, -ENODEV - failure. 4517 **/ 4518int 4519lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4520{ 4521 phba->lpfc_hba_init_link = lpfc_hba_init_link; 4522 phba->lpfc_hba_down_link = lpfc_hba_down_link; 4523 phba->lpfc_selective_reset = lpfc_selective_reset; 4524 switch (dev_grp) { 4525 case LPFC_PCI_DEV_LP: 4526 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 4527 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 4528 phba->lpfc_stop_port = lpfc_stop_port_s3; 4529 break; 4530 case LPFC_PCI_DEV_OC: 4531 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 4532 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 4533 phba->lpfc_stop_port = lpfc_stop_port_s4; 4534 break; 4535 default: 4536 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4537 "1431 Invalid HBA PCI-device group: 0x%x\n", 4538 dev_grp); 4539 return -ENODEV; 4540 break; 4541 } 4542 return 0; 4543} 4544 4545/** 4546 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 4547 * @phba: pointer to lpfc hba data structure. 4548 * 4549 * This routine is invoked to set up the driver internal resources before the 4550 * device specific resource setup to support the HBA device it attached to. 4551 * 4552 * Return codes 4553 * 0 - successful 4554 * other values - error 4555 **/ 4556static int 4557lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 4558{ 4559 /* 4560 * Driver resources common to all SLI revisions 4561 */ 4562 atomic_set(&phba->fast_event_count, 0); 4563 spin_lock_init(&phba->hbalock); 4564 4565 /* Initialize ndlp management spinlock */ 4566 spin_lock_init(&phba->ndlp_lock); 4567 4568 INIT_LIST_HEAD(&phba->port_list); 4569 INIT_LIST_HEAD(&phba->work_list); 4570 init_waitqueue_head(&phba->wait_4_mlo_m_q); 4571 4572 /* Initialize the wait queue head for the kernel thread */ 4573 init_waitqueue_head(&phba->work_waitq); 4574 4575 /* Initialize the scsi buffer list used by driver for scsi IO */ 4576 spin_lock_init(&phba->scsi_buf_list_lock); 4577 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 4578 4579 /* Initialize the fabric iocb list */ 4580 INIT_LIST_HEAD(&phba->fabric_iocb_list); 4581 4582 /* Initialize list to save ELS buffers */ 4583 INIT_LIST_HEAD(&phba->elsbuf); 4584 4585 /* Initialize FCF connection rec list */ 4586 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 4587 4588 return 0; 4589} 4590 4591/** 4592 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 4593 * @phba: pointer to lpfc hba data structure. 4594 * 4595 * This routine is invoked to set up the driver internal resources after the 4596 * device specific resource setup to support the HBA device it attached to. 4597 * 4598 * Return codes 4599 * 0 - successful 4600 * other values - error 4601 **/ 4602static int 4603lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 4604{ 4605 int error; 4606 4607 /* Startup the kernel thread for this host adapter. */ 4608 phba->worker_thread = kthread_run(lpfc_do_work, phba, 4609 "lpfc_worker_%d", phba->brd_no); 4610 if (IS_ERR(phba->worker_thread)) { 4611 error = PTR_ERR(phba->worker_thread); 4612 return error; 4613 } 4614 4615 return 0; 4616} 4617 4618/** 4619 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 4620 * @phba: pointer to lpfc hba data structure. 4621 * 4622 * This routine is invoked to unset the driver internal resources set up after 4623 * the device specific resource setup for supporting the HBA device it 4624 * attached to. 4625 **/ 4626static void 4627lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 4628{ 4629 /* Stop kernel worker thread */ 4630 kthread_stop(phba->worker_thread); 4631} 4632 4633/** 4634 * lpfc_free_iocb_list - Free iocb list. 4635 * @phba: pointer to lpfc hba data structure. 4636 * 4637 * This routine is invoked to free the driver's IOCB list and memory. 4638 **/ 4639static void 4640lpfc_free_iocb_list(struct lpfc_hba *phba) 4641{ 4642 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 4643 4644 spin_lock_irq(&phba->hbalock); 4645 list_for_each_entry_safe(iocbq_entry, iocbq_next, 4646 &phba->lpfc_iocb_list, list) { 4647 list_del(&iocbq_entry->list); 4648 kfree(iocbq_entry); 4649 phba->total_iocbq_bufs--; 4650 } 4651 spin_unlock_irq(&phba->hbalock); 4652 4653 return; 4654} 4655 4656/** 4657 * lpfc_init_iocb_list - Allocate and initialize iocb list. 4658 * @phba: pointer to lpfc hba data structure. 4659 * 4660 * This routine is invoked to allocate and initizlize the driver's IOCB 4661 * list and set up the IOCB tag array accordingly. 4662 * 4663 * Return codes 4664 * 0 - successful 4665 * other values - error 4666 **/ 4667static int 4668lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 4669{ 4670 struct lpfc_iocbq *iocbq_entry = NULL; 4671 uint16_t iotag; 4672 int i; 4673 4674 /* Initialize and populate the iocb list per host. */ 4675 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 4676 for (i = 0; i < iocb_count; i++) { 4677 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 4678 if (iocbq_entry == NULL) { 4679 printk(KERN_ERR "%s: only allocated %d iocbs of " 4680 "expected %d count. Unloading driver.\n", 4681 __func__, i, LPFC_IOCB_LIST_CNT); 4682 goto out_free_iocbq; 4683 } 4684 4685 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 4686 if (iotag == 0) { 4687 kfree(iocbq_entry); 4688 printk(KERN_ERR "%s: failed to allocate IOTAG. " 4689 "Unloading driver.\n", __func__); 4690 goto out_free_iocbq; 4691 } 4692 iocbq_entry->sli4_xritag = NO_XRI; 4693 4694 spin_lock_irq(&phba->hbalock); 4695 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 4696 phba->total_iocbq_bufs++; 4697 spin_unlock_irq(&phba->hbalock); 4698 } 4699 4700 return 0; 4701 4702out_free_iocbq: 4703 lpfc_free_iocb_list(phba); 4704 4705 return -ENOMEM; 4706} 4707 4708/** 4709 * lpfc_free_sgl_list - Free sgl list. 4710 * @phba: pointer to lpfc hba data structure. 4711 * 4712 * This routine is invoked to free the driver's sgl list and memory. 4713 **/ 4714static void 4715lpfc_free_sgl_list(struct lpfc_hba *phba) 4716{ 4717 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 4718 LIST_HEAD(sglq_list); 4719 4720 spin_lock_irq(&phba->hbalock); 4721 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 4722 spin_unlock_irq(&phba->hbalock); 4723 4724 list_for_each_entry_safe(sglq_entry, sglq_next, 4725 &sglq_list, list) { 4726 list_del(&sglq_entry->list); 4727 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 4728 kfree(sglq_entry); 4729 phba->sli4_hba.total_sglq_bufs--; 4730 } 4731 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4732} 4733 4734/** 4735 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 4736 * @phba: pointer to lpfc hba data structure. 4737 * 4738 * This routine is invoked to allocate the driver's active sgl memory. 4739 * This array will hold the sglq_entry's for active IOs. 4740 **/ 4741static int 4742lpfc_init_active_sgl_array(struct lpfc_hba *phba) 4743{ 4744 int size; 4745 size = sizeof(struct lpfc_sglq *); 4746 size *= phba->sli4_hba.max_cfg_param.max_xri; 4747 4748 phba->sli4_hba.lpfc_sglq_active_list = 4749 kzalloc(size, GFP_KERNEL); 4750 if (!phba->sli4_hba.lpfc_sglq_active_list) 4751 return -ENOMEM; 4752 return 0; 4753} 4754 4755/** 4756 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 4757 * @phba: pointer to lpfc hba data structure. 4758 * 4759 * This routine is invoked to walk through the array of active sglq entries 4760 * and free all of the resources. 4761 * This is just a place holder for now. 4762 **/ 4763static void 4764lpfc_free_active_sgl(struct lpfc_hba *phba) 4765{ 4766 kfree(phba->sli4_hba.lpfc_sglq_active_list); 4767} 4768 4769/** 4770 * lpfc_init_sgl_list - Allocate and initialize sgl list. 4771 * @phba: pointer to lpfc hba data structure. 4772 * 4773 * This routine is invoked to allocate and initizlize the driver's sgl 4774 * list and set up the sgl xritag tag array accordingly. 4775 * 4776 * Return codes 4777 * 0 - successful 4778 * other values - error 4779 **/ 4780static int 4781lpfc_init_sgl_list(struct lpfc_hba *phba) 4782{ 4783 struct lpfc_sglq *sglq_entry = NULL; 4784 int i; 4785 int els_xri_cnt; 4786 4787 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 4788 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4789 "2400 lpfc_init_sgl_list els %d.\n", 4790 els_xri_cnt); 4791 /* Initialize and populate the sglq list per host/VF. */ 4792 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 4793 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 4794 4795 /* Sanity check on XRI management */ 4796 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 4797 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4798 "2562 No room left for SCSI XRI allocation: " 4799 "max_xri=%d, els_xri=%d\n", 4800 phba->sli4_hba.max_cfg_param.max_xri, 4801 els_xri_cnt); 4802 return -ENOMEM; 4803 } 4804 4805 /* Allocate memory for the ELS XRI management array */ 4806 phba->sli4_hba.lpfc_els_sgl_array = 4807 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 4808 GFP_KERNEL); 4809 4810 if (!phba->sli4_hba.lpfc_els_sgl_array) { 4811 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4812 "2401 Failed to allocate memory for ELS " 4813 "XRI management array of size %d.\n", 4814 els_xri_cnt); 4815 return -ENOMEM; 4816 } 4817 4818 /* Keep the SCSI XRI into the XRI management array */ 4819 phba->sli4_hba.scsi_xri_max = 4820 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 4821 phba->sli4_hba.scsi_xri_cnt = 0; 4822 4823 phba->sli4_hba.lpfc_scsi_psb_array = 4824 kzalloc((sizeof(struct lpfc_scsi_buf *) * 4825 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 4826 4827 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 4828 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4829 "2563 Failed to allocate memory for SCSI " 4830 "XRI management array of size %d.\n", 4831 phba->sli4_hba.scsi_xri_max); 4832 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4833 return -ENOMEM; 4834 } 4835 4836 for (i = 0; i < els_xri_cnt; i++) { 4837 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 4838 if (sglq_entry == NULL) { 4839 printk(KERN_ERR "%s: only allocated %d sgls of " 4840 "expected %d count. Unloading driver.\n", 4841 __func__, i, els_xri_cnt); 4842 goto out_free_mem; 4843 } 4844 4845 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba); 4846 if (sglq_entry->sli4_xritag == NO_XRI) { 4847 kfree(sglq_entry); 4848 printk(KERN_ERR "%s: failed to allocate XRI.\n" 4849 "Unloading driver.\n", __func__); 4850 goto out_free_mem; 4851 } 4852 sglq_entry->buff_type = GEN_BUFF_TYPE; 4853 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 4854 if (sglq_entry->virt == NULL) { 4855 kfree(sglq_entry); 4856 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 4857 "Unloading driver.\n", __func__); 4858 goto out_free_mem; 4859 } 4860 sglq_entry->sgl = sglq_entry->virt; 4861 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 4862 4863 /* The list order is used by later block SGL registraton */ 4864 spin_lock_irq(&phba->hbalock); 4865 sglq_entry->state = SGL_FREED; 4866 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 4867 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 4868 phba->sli4_hba.total_sglq_bufs++; 4869 spin_unlock_irq(&phba->hbalock); 4870 } 4871 return 0; 4872 4873out_free_mem: 4874 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4875 lpfc_free_sgl_list(phba); 4876 return -ENOMEM; 4877} 4878 4879/** 4880 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 4881 * @phba: pointer to lpfc hba data structure. 4882 * 4883 * This routine is invoked to post rpi header templates to the 4884 * HBA consistent with the SLI-4 interface spec. This routine 4885 * posts a PAGE_SIZE memory region to the port to hold up to 4886 * PAGE_SIZE modulo 64 rpi context headers. 4887 * No locks are held here because this is an initialization routine 4888 * called only from probe or lpfc_online when interrupts are not 4889 * enabled and the driver is reinitializing the device. 4890 * 4891 * Return codes 4892 * 0 - successful 4893 * -ENOMEM - No available memory 4894 * -EIO - The mailbox failed to complete successfully. 4895 **/ 4896int 4897lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 4898{ 4899 int rc = 0; 4900 int longs; 4901 uint16_t rpi_count; 4902 struct lpfc_rpi_hdr *rpi_hdr; 4903 4904 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 4905 4906 /* 4907 * Provision an rpi bitmask range for discovery. The total count 4908 * is the difference between max and base + 1. 4909 */ 4910 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base + 4911 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4912 4913 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG; 4914 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long), 4915 GFP_KERNEL); 4916 if (!phba->sli4_hba.rpi_bmask) 4917 return -ENOMEM; 4918 4919 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 4920 if (!rpi_hdr) { 4921 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 4922 "0391 Error during rpi post operation\n"); 4923 lpfc_sli4_remove_rpis(phba); 4924 rc = -ENODEV; 4925 } 4926 4927 return rc; 4928} 4929 4930/** 4931 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 4932 * @phba: pointer to lpfc hba data structure. 4933 * 4934 * This routine is invoked to allocate a single 4KB memory region to 4935 * support rpis and stores them in the phba. This single region 4936 * provides support for up to 64 rpis. The region is used globally 4937 * by the device. 4938 * 4939 * Returns: 4940 * A valid rpi hdr on success. 4941 * A NULL pointer on any failure. 4942 **/ 4943struct lpfc_rpi_hdr * 4944lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 4945{ 4946 uint16_t rpi_limit, curr_rpi_range; 4947 struct lpfc_dmabuf *dmabuf; 4948 struct lpfc_rpi_hdr *rpi_hdr; 4949 uint32_t rpi_count; 4950 4951 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 4952 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4953 4954 spin_lock_irq(&phba->hbalock); 4955 curr_rpi_range = phba->sli4_hba.next_rpi; 4956 spin_unlock_irq(&phba->hbalock); 4957 4958 /* 4959 * The port has a limited number of rpis. The increment here 4960 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 4961 * and to allow the full max_rpi range per port. 4962 */ 4963 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 4964 rpi_count = rpi_limit - curr_rpi_range; 4965 else 4966 rpi_count = LPFC_RPI_HDR_COUNT; 4967 4968 /* 4969 * First allocate the protocol header region for the port. The 4970 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 4971 */ 4972 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4973 if (!dmabuf) 4974 return NULL; 4975 4976 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4977 LPFC_HDR_TEMPLATE_SIZE, 4978 &dmabuf->phys, 4979 GFP_KERNEL); 4980 if (!dmabuf->virt) { 4981 rpi_hdr = NULL; 4982 goto err_free_dmabuf; 4983 } 4984 4985 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 4986 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 4987 rpi_hdr = NULL; 4988 goto err_free_coherent; 4989 } 4990 4991 /* Save the rpi header data for cleanup later. */ 4992 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 4993 if (!rpi_hdr) 4994 goto err_free_coherent; 4995 4996 rpi_hdr->dmabuf = dmabuf; 4997 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 4998 rpi_hdr->page_count = 1; 4999 spin_lock_irq(&phba->hbalock); 5000 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi; 5001 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 5002 5003 /* 5004 * The next_rpi stores the next module-64 rpi value to post 5005 * in any subsequent rpi memory region postings. 5006 */ 5007 phba->sli4_hba.next_rpi += rpi_count; 5008 spin_unlock_irq(&phba->hbalock); 5009 return rpi_hdr; 5010 5011 err_free_coherent: 5012 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 5013 dmabuf->virt, dmabuf->phys); 5014 err_free_dmabuf: 5015 kfree(dmabuf); 5016 return NULL; 5017} 5018 5019/** 5020 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 5021 * @phba: pointer to lpfc hba data structure. 5022 * 5023 * This routine is invoked to remove all memory resources allocated 5024 * to support rpis. This routine presumes the caller has released all 5025 * rpis consumed by fabric or port logins and is prepared to have 5026 * the header pages removed. 5027 **/ 5028void 5029lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 5030{ 5031 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 5032 5033 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 5034 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 5035 list_del(&rpi_hdr->list); 5036 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 5037 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 5038 kfree(rpi_hdr->dmabuf); 5039 kfree(rpi_hdr); 5040 } 5041 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 5042} 5043 5044/** 5045 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 5046 * @pdev: pointer to pci device data structure. 5047 * 5048 * This routine is invoked to allocate the driver hba data structure for an 5049 * HBA device. If the allocation is successful, the phba reference to the 5050 * PCI device data structure is set. 5051 * 5052 * Return codes 5053 * pointer to @phba - successful 5054 * NULL - error 5055 **/ 5056static struct lpfc_hba * 5057lpfc_hba_alloc(struct pci_dev *pdev) 5058{ 5059 struct lpfc_hba *phba; 5060 5061 /* Allocate memory for HBA structure */ 5062 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 5063 if (!phba) { 5064 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 5065 return NULL; 5066 } 5067 5068 /* Set reference to PCI device in HBA structure */ 5069 phba->pcidev = pdev; 5070 5071 /* Assign an unused board number */ 5072 phba->brd_no = lpfc_get_instance(); 5073 if (phba->brd_no < 0) { 5074 kfree(phba); 5075 return NULL; 5076 } 5077 5078 spin_lock_init(&phba->ct_ev_lock); 5079 INIT_LIST_HEAD(&phba->ct_ev_waiters); 5080 5081 return phba; 5082} 5083 5084/** 5085 * lpfc_hba_free - Free driver hba data structure with a device. 5086 * @phba: pointer to lpfc hba data structure. 5087 * 5088 * This routine is invoked to free the driver hba data structure with an 5089 * HBA device. 5090 **/ 5091static void 5092lpfc_hba_free(struct lpfc_hba *phba) 5093{ 5094 /* Release the driver assigned board number */ 5095 idr_remove(&lpfc_hba_index, phba->brd_no); 5096 5097 kfree(phba); 5098 return; 5099} 5100 5101/** 5102 * lpfc_create_shost - Create hba physical port with associated scsi host. 5103 * @phba: pointer to lpfc hba data structure. 5104 * 5105 * This routine is invoked to create HBA physical port and associate a SCSI 5106 * host with it. 5107 * 5108 * Return codes 5109 * 0 - successful 5110 * other values - error 5111 **/ 5112static int 5113lpfc_create_shost(struct lpfc_hba *phba) 5114{ 5115 struct lpfc_vport *vport; 5116 struct Scsi_Host *shost; 5117 5118 /* Initialize HBA FC structure */ 5119 phba->fc_edtov = FF_DEF_EDTOV; 5120 phba->fc_ratov = FF_DEF_RATOV; 5121 phba->fc_altov = FF_DEF_ALTOV; 5122 phba->fc_arbtov = FF_DEF_ARBTOV; 5123 5124 atomic_set(&phba->sdev_cnt, 0); 5125 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 5126 if (!vport) 5127 return -ENODEV; 5128 5129 shost = lpfc_shost_from_vport(vport); 5130 phba->pport = vport; 5131 lpfc_debugfs_initialize(vport); 5132 /* Put reference to SCSI host to driver's device private data */ 5133 pci_set_drvdata(phba->pcidev, shost); 5134 5135 return 0; 5136} 5137 5138/** 5139 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 5140 * @phba: pointer to lpfc hba data structure. 5141 * 5142 * This routine is invoked to destroy HBA physical port and the associated 5143 * SCSI host. 5144 **/ 5145static void 5146lpfc_destroy_shost(struct lpfc_hba *phba) 5147{ 5148 struct lpfc_vport *vport = phba->pport; 5149 5150 /* Destroy physical port that associated with the SCSI host */ 5151 destroy_port(vport); 5152 5153 return; 5154} 5155 5156/** 5157 * lpfc_setup_bg - Setup Block guard structures and debug areas. 5158 * @phba: pointer to lpfc hba data structure. 5159 * @shost: the shost to be used to detect Block guard settings. 5160 * 5161 * This routine sets up the local Block guard protocol settings for @shost. 5162 * This routine also allocates memory for debugging bg buffers. 5163 **/ 5164static void 5165lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 5166{ 5167 int pagecnt = 10; 5168 if (lpfc_prot_mask && lpfc_prot_guard) { 5169 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5170 "1478 Registering BlockGuard with the " 5171 "SCSI layer\n"); 5172 scsi_host_set_prot(shost, lpfc_prot_mask); 5173 scsi_host_set_guard(shost, lpfc_prot_guard); 5174 } 5175 if (!_dump_buf_data) { 5176 while (pagecnt) { 5177 spin_lock_init(&_dump_buf_lock); 5178 _dump_buf_data = 5179 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5180 if (_dump_buf_data) { 5181 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5182 "9043 BLKGRD: allocated %d pages for " 5183 "_dump_buf_data at 0x%p\n", 5184 (1 << pagecnt), _dump_buf_data); 5185 _dump_buf_data_order = pagecnt; 5186 memset(_dump_buf_data, 0, 5187 ((1 << PAGE_SHIFT) << pagecnt)); 5188 break; 5189 } else 5190 --pagecnt; 5191 } 5192 if (!_dump_buf_data_order) 5193 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5194 "9044 BLKGRD: ERROR unable to allocate " 5195 "memory for hexdump\n"); 5196 } else 5197 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5198 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 5199 "\n", _dump_buf_data); 5200 if (!_dump_buf_dif) { 5201 while (pagecnt) { 5202 _dump_buf_dif = 5203 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5204 if (_dump_buf_dif) { 5205 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5206 "9046 BLKGRD: allocated %d pages for " 5207 "_dump_buf_dif at 0x%p\n", 5208 (1 << pagecnt), _dump_buf_dif); 5209 _dump_buf_dif_order = pagecnt; 5210 memset(_dump_buf_dif, 0, 5211 ((1 << PAGE_SHIFT) << pagecnt)); 5212 break; 5213 } else 5214 --pagecnt; 5215 } 5216 if (!_dump_buf_dif_order) 5217 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5218 "9047 BLKGRD: ERROR unable to allocate " 5219 "memory for hexdump\n"); 5220 } else 5221 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5222 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 5223 _dump_buf_dif); 5224} 5225 5226/** 5227 * lpfc_post_init_setup - Perform necessary device post initialization setup. 5228 * @phba: pointer to lpfc hba data structure. 5229 * 5230 * This routine is invoked to perform all the necessary post initialization 5231 * setup for the device. 5232 **/ 5233static void 5234lpfc_post_init_setup(struct lpfc_hba *phba) 5235{ 5236 struct Scsi_Host *shost; 5237 struct lpfc_adapter_event_header adapter_event; 5238 5239 /* Get the default values for Model Name and Description */ 5240 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5241 5242 /* 5243 * hba setup may have changed the hba_queue_depth so we need to 5244 * adjust the value of can_queue. 5245 */ 5246 shost = pci_get_drvdata(phba->pcidev); 5247 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5248 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5249 lpfc_setup_bg(phba, shost); 5250 5251 lpfc_host_attrib_init(shost); 5252 5253 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5254 spin_lock_irq(shost->host_lock); 5255 lpfc_poll_start_timer(phba); 5256 spin_unlock_irq(shost->host_lock); 5257 } 5258 5259 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5260 "0428 Perform SCSI scan\n"); 5261 /* Send board arrival event to upper layer */ 5262 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5263 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5264 fc_host_post_vendor_event(shost, fc_get_event_number(), 5265 sizeof(adapter_event), 5266 (char *) &adapter_event, 5267 LPFC_NL_VENDOR_ID); 5268 return; 5269} 5270 5271/** 5272 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5273 * @phba: pointer to lpfc hba data structure. 5274 * 5275 * This routine is invoked to set up the PCI device memory space for device 5276 * with SLI-3 interface spec. 5277 * 5278 * Return codes 5279 * 0 - successful 5280 * other values - error 5281 **/ 5282static int 5283lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5284{ 5285 struct pci_dev *pdev; 5286 unsigned long bar0map_len, bar2map_len; 5287 int i, hbq_count; 5288 void *ptr; 5289 int error = -ENODEV; 5290 5291 /* Obtain PCI device reference */ 5292 if (!phba->pcidev) 5293 return error; 5294 else 5295 pdev = phba->pcidev; 5296 5297 /* Set the device DMA mask size */ 5298 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5299 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5300 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5301 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5302 return error; 5303 } 5304 } 5305 5306 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5307 * required by each mapping. 5308 */ 5309 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5310 bar0map_len = pci_resource_len(pdev, 0); 5311 5312 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5313 bar2map_len = pci_resource_len(pdev, 2); 5314 5315 /* Map HBA SLIM to a kernel virtual address. */ 5316 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5317 if (!phba->slim_memmap_p) { 5318 dev_printk(KERN_ERR, &pdev->dev, 5319 "ioremap failed for SLIM memory.\n"); 5320 goto out; 5321 } 5322 5323 /* Map HBA Control Registers to a kernel virtual address. */ 5324 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5325 if (!phba->ctrl_regs_memmap_p) { 5326 dev_printk(KERN_ERR, &pdev->dev, 5327 "ioremap failed for HBA control registers.\n"); 5328 goto out_iounmap_slim; 5329 } 5330 5331 /* Allocate memory for SLI-2 structures */ 5332 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5333 SLI2_SLIM_SIZE, 5334 &phba->slim2p.phys, 5335 GFP_KERNEL); 5336 if (!phba->slim2p.virt) 5337 goto out_iounmap; 5338 5339 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5340 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5341 phba->mbox_ext = (phba->slim2p.virt + 5342 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5343 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5344 phba->IOCBs = (phba->slim2p.virt + 5345 offsetof(struct lpfc_sli2_slim, IOCBs)); 5346 5347 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5348 lpfc_sli_hbq_size(), 5349 &phba->hbqslimp.phys, 5350 GFP_KERNEL); 5351 if (!phba->hbqslimp.virt) 5352 goto out_free_slim; 5353 5354 hbq_count = lpfc_sli_hbq_count(); 5355 ptr = phba->hbqslimp.virt; 5356 for (i = 0; i < hbq_count; ++i) { 5357 phba->hbqs[i].hbq_virt = ptr; 5358 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5359 ptr += (lpfc_hbq_defs[i]->entry_count * 5360 sizeof(struct lpfc_hbq_entry)); 5361 } 5362 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5363 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5364 5365 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5366 5367 INIT_LIST_HEAD(&phba->rb_pend_list); 5368 5369 phba->MBslimaddr = phba->slim_memmap_p; 5370 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 5371 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 5372 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 5373 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 5374 5375 return 0; 5376 5377out_free_slim: 5378 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5379 phba->slim2p.virt, phba->slim2p.phys); 5380out_iounmap: 5381 iounmap(phba->ctrl_regs_memmap_p); 5382out_iounmap_slim: 5383 iounmap(phba->slim_memmap_p); 5384out: 5385 return error; 5386} 5387 5388/** 5389 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 5390 * @phba: pointer to lpfc hba data structure. 5391 * 5392 * This routine is invoked to unset the PCI device memory space for device 5393 * with SLI-3 interface spec. 5394 **/ 5395static void 5396lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 5397{ 5398 struct pci_dev *pdev; 5399 5400 /* Obtain PCI device reference */ 5401 if (!phba->pcidev) 5402 return; 5403 else 5404 pdev = phba->pcidev; 5405 5406 /* Free coherent DMA memory allocated */ 5407 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 5408 phba->hbqslimp.virt, phba->hbqslimp.phys); 5409 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5410 phba->slim2p.virt, phba->slim2p.phys); 5411 5412 /* I/O memory unmap */ 5413 iounmap(phba->ctrl_regs_memmap_p); 5414 iounmap(phba->slim_memmap_p); 5415 5416 return; 5417} 5418 5419/** 5420 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 5421 * @phba: pointer to lpfc hba data structure. 5422 * 5423 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 5424 * done and check status. 5425 * 5426 * Return 0 if successful, otherwise -ENODEV. 5427 **/ 5428int 5429lpfc_sli4_post_status_check(struct lpfc_hba *phba) 5430{ 5431 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 5432 struct lpfc_register reg_data; 5433 int i, port_error = 0; 5434 uint32_t if_type; 5435 5436 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 5437 memset(®_data, 0, sizeof(reg_data)); 5438 if (!phba->sli4_hba.PSMPHRregaddr) 5439 return -ENODEV; 5440 5441 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 5442 for (i = 0; i < 3000; i++) { 5443 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 5444 &portsmphr_reg.word0) || 5445 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 5446 /* Port has a fatal POST error, break out */ 5447 port_error = -ENODEV; 5448 break; 5449 } 5450 if (LPFC_POST_STAGE_PORT_READY == 5451 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 5452 break; 5453 msleep(10); 5454 } 5455 5456 /* 5457 * If there was a port error during POST, then don't proceed with 5458 * other register reads as the data may not be valid. Just exit. 5459 */ 5460 if (port_error) { 5461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5462 "1408 Port Failed POST - portsmphr=0x%x, " 5463 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 5464 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 5465 portsmphr_reg.word0, 5466 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 5467 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 5468 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 5469 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 5470 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 5471 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 5472 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 5473 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 5474 } else { 5475 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5476 "2534 Device Info: SLIFamily=0x%x, " 5477 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 5478 "SLIHint_2=0x%x, FT=0x%x\n", 5479 bf_get(lpfc_sli_intf_sli_family, 5480 &phba->sli4_hba.sli_intf), 5481 bf_get(lpfc_sli_intf_slirev, 5482 &phba->sli4_hba.sli_intf), 5483 bf_get(lpfc_sli_intf_if_type, 5484 &phba->sli4_hba.sli_intf), 5485 bf_get(lpfc_sli_intf_sli_hint1, 5486 &phba->sli4_hba.sli_intf), 5487 bf_get(lpfc_sli_intf_sli_hint2, 5488 &phba->sli4_hba.sli_intf), 5489 bf_get(lpfc_sli_intf_func_type, 5490 &phba->sli4_hba.sli_intf)); 5491 /* 5492 * Check for other Port errors during the initialization 5493 * process. Fail the load if the port did not come up 5494 * correctly. 5495 */ 5496 if_type = bf_get(lpfc_sli_intf_if_type, 5497 &phba->sli4_hba.sli_intf); 5498 switch (if_type) { 5499 case LPFC_SLI_INTF_IF_TYPE_0: 5500 phba->sli4_hba.ue_mask_lo = 5501 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 5502 phba->sli4_hba.ue_mask_hi = 5503 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 5504 uerrlo_reg.word0 = 5505 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 5506 uerrhi_reg.word0 = 5507 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 5508 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 5509 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 5510 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5511 "1422 Unrecoverable Error " 5512 "Detected during POST " 5513 "uerr_lo_reg=0x%x, " 5514 "uerr_hi_reg=0x%x, " 5515 "ue_mask_lo_reg=0x%x, " 5516 "ue_mask_hi_reg=0x%x\n", 5517 uerrlo_reg.word0, 5518 uerrhi_reg.word0, 5519 phba->sli4_hba.ue_mask_lo, 5520 phba->sli4_hba.ue_mask_hi); 5521 port_error = -ENODEV; 5522 } 5523 break; 5524 case LPFC_SLI_INTF_IF_TYPE_2: 5525 /* Final checks. The port status should be clean. */ 5526 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 5527 ®_data.word0) || 5528 (bf_get(lpfc_sliport_status_err, ®_data) && 5529 !bf_get(lpfc_sliport_status_rn, ®_data))) { 5530 phba->work_status[0] = 5531 readl(phba->sli4_hba.u.if_type2. 5532 ERR1regaddr); 5533 phba->work_status[1] = 5534 readl(phba->sli4_hba.u.if_type2. 5535 ERR2regaddr); 5536 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5537 "2888 Port Error Detected " 5538 "during POST: " 5539 "port status reg 0x%x, " 5540 "port_smphr reg 0x%x, " 5541 "error 1=0x%x, error 2=0x%x\n", 5542 reg_data.word0, 5543 portsmphr_reg.word0, 5544 phba->work_status[0], 5545 phba->work_status[1]); 5546 port_error = -ENODEV; 5547 } 5548 break; 5549 case LPFC_SLI_INTF_IF_TYPE_1: 5550 default: 5551 break; 5552 } 5553 } 5554 return port_error; 5555} 5556 5557/** 5558 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 5559 * @phba: pointer to lpfc hba data structure. 5560 * @if_type: The SLI4 interface type getting configured. 5561 * 5562 * This routine is invoked to set up SLI4 BAR0 PCI config space register 5563 * memory map. 5564 **/ 5565static void 5566lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 5567{ 5568 switch (if_type) { 5569 case LPFC_SLI_INTF_IF_TYPE_0: 5570 phba->sli4_hba.u.if_type0.UERRLOregaddr = 5571 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 5572 phba->sli4_hba.u.if_type0.UERRHIregaddr = 5573 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 5574 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 5575 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 5576 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 5577 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 5578 phba->sli4_hba.SLIINTFregaddr = 5579 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 5580 break; 5581 case LPFC_SLI_INTF_IF_TYPE_2: 5582 phba->sli4_hba.u.if_type2.ERR1regaddr = 5583 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_1; 5584 phba->sli4_hba.u.if_type2.ERR2regaddr = 5585 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_2; 5586 phba->sli4_hba.u.if_type2.CTRLregaddr = 5587 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_CNTRL; 5588 phba->sli4_hba.u.if_type2.STATUSregaddr = 5589 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_STATUS; 5590 phba->sli4_hba.SLIINTFregaddr = 5591 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 5592 phba->sli4_hba.PSMPHRregaddr = 5593 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_IF2_SMPHR; 5594 phba->sli4_hba.RQDBregaddr = 5595 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL; 5596 phba->sli4_hba.WQDBregaddr = 5597 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL; 5598 phba->sli4_hba.EQCQDBregaddr = 5599 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 5600 phba->sli4_hba.MQDBregaddr = 5601 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 5602 phba->sli4_hba.BMBXregaddr = 5603 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 5604 break; 5605 case LPFC_SLI_INTF_IF_TYPE_1: 5606 default: 5607 dev_printk(KERN_ERR, &phba->pcidev->dev, 5608 "FATAL - unsupported SLI4 interface type - %d\n", 5609 if_type); 5610 break; 5611 } 5612} 5613 5614/** 5615 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 5616 * @phba: pointer to lpfc hba data structure. 5617 * 5618 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 5619 * memory map. 5620 **/ 5621static void 5622lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 5623{ 5624 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5625 LPFC_SLIPORT_IF0_SMPHR; 5626 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5627 LPFC_HST_ISR0; 5628 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5629 LPFC_HST_IMR0; 5630 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5631 LPFC_HST_ISCR0; 5632} 5633 5634/** 5635 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 5636 * @phba: pointer to lpfc hba data structure. 5637 * @vf: virtual function number 5638 * 5639 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 5640 * based on the given viftual function number, @vf. 5641 * 5642 * Return 0 if successful, otherwise -ENODEV. 5643 **/ 5644static int 5645lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 5646{ 5647 if (vf > LPFC_VIR_FUNC_MAX) 5648 return -ENODEV; 5649 5650 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5651 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 5652 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5653 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 5654 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5655 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 5656 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5657 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 5658 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5659 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 5660 return 0; 5661} 5662 5663/** 5664 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 5665 * @phba: pointer to lpfc hba data structure. 5666 * 5667 * This routine is invoked to create the bootstrap mailbox 5668 * region consistent with the SLI-4 interface spec. This 5669 * routine allocates all memory necessary to communicate 5670 * mailbox commands to the port and sets up all alignment 5671 * needs. No locks are expected to be held when calling 5672 * this routine. 5673 * 5674 * Return codes 5675 * 0 - successful 5676 * -ENOMEM - could not allocated memory. 5677 **/ 5678static int 5679lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 5680{ 5681 uint32_t bmbx_size; 5682 struct lpfc_dmabuf *dmabuf; 5683 struct dma_address *dma_address; 5684 uint32_t pa_addr; 5685 uint64_t phys_addr; 5686 5687 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5688 if (!dmabuf) 5689 return -ENOMEM; 5690 5691 /* 5692 * The bootstrap mailbox region is comprised of 2 parts 5693 * plus an alignment restriction of 16 bytes. 5694 */ 5695 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 5696 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5697 bmbx_size, 5698 &dmabuf->phys, 5699 GFP_KERNEL); 5700 if (!dmabuf->virt) { 5701 kfree(dmabuf); 5702 return -ENOMEM; 5703 } 5704 memset(dmabuf->virt, 0, bmbx_size); 5705 5706 /* 5707 * Initialize the bootstrap mailbox pointers now so that the register 5708 * operations are simple later. The mailbox dma address is required 5709 * to be 16-byte aligned. Also align the virtual memory as each 5710 * maibox is copied into the bmbx mailbox region before issuing the 5711 * command to the port. 5712 */ 5713 phba->sli4_hba.bmbx.dmabuf = dmabuf; 5714 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 5715 5716 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 5717 LPFC_ALIGN_16_BYTE); 5718 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 5719 LPFC_ALIGN_16_BYTE); 5720 5721 /* 5722 * Set the high and low physical addresses now. The SLI4 alignment 5723 * requirement is 16 bytes and the mailbox is posted to the port 5724 * as two 30-bit addresses. The other data is a bit marking whether 5725 * the 30-bit address is the high or low address. 5726 * Upcast bmbx aphys to 64bits so shift instruction compiles 5727 * clean on 32 bit machines. 5728 */ 5729 dma_address = &phba->sli4_hba.bmbx.dma_address; 5730 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 5731 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 5732 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 5733 LPFC_BMBX_BIT1_ADDR_HI); 5734 5735 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 5736 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 5737 LPFC_BMBX_BIT1_ADDR_LO); 5738 return 0; 5739} 5740 5741/** 5742 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 5743 * @phba: pointer to lpfc hba data structure. 5744 * 5745 * This routine is invoked to teardown the bootstrap mailbox 5746 * region and release all host resources. This routine requires 5747 * the caller to ensure all mailbox commands recovered, no 5748 * additional mailbox comands are sent, and interrupts are disabled 5749 * before calling this routine. 5750 * 5751 **/ 5752static void 5753lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 5754{ 5755 dma_free_coherent(&phba->pcidev->dev, 5756 phba->sli4_hba.bmbx.bmbx_size, 5757 phba->sli4_hba.bmbx.dmabuf->virt, 5758 phba->sli4_hba.bmbx.dmabuf->phys); 5759 5760 kfree(phba->sli4_hba.bmbx.dmabuf); 5761 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 5762} 5763 5764/** 5765 * lpfc_sli4_read_config - Get the config parameters. 5766 * @phba: pointer to lpfc hba data structure. 5767 * 5768 * This routine is invoked to read the configuration parameters from the HBA. 5769 * The configuration parameters are used to set the base and maximum values 5770 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 5771 * allocation for the port. 5772 * 5773 * Return codes 5774 * 0 - successful 5775 * -ENOMEM - No available memory 5776 * -EIO - The mailbox failed to complete successfully. 5777 **/ 5778static int 5779lpfc_sli4_read_config(struct lpfc_hba *phba) 5780{ 5781 LPFC_MBOXQ_t *pmb; 5782 struct lpfc_mbx_read_config *rd_config; 5783 uint32_t rc = 0; 5784 5785 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5786 if (!pmb) { 5787 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5788 "2011 Unable to allocate memory for issuing " 5789 "SLI_CONFIG_SPECIAL mailbox command\n"); 5790 return -ENOMEM; 5791 } 5792 5793 lpfc_read_config(phba, pmb); 5794 5795 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 5796 if (rc != MBX_SUCCESS) { 5797 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5798 "2012 Mailbox failed , mbxCmd x%x " 5799 "READ_CONFIG, mbxStatus x%x\n", 5800 bf_get(lpfc_mqe_command, &pmb->u.mqe), 5801 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 5802 rc = -EIO; 5803 } else { 5804 rd_config = &pmb->u.mqe.un.rd_config; 5805 phba->sli4_hba.max_cfg_param.max_xri = 5806 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 5807 phba->sli4_hba.max_cfg_param.xri_base = 5808 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 5809 phba->sli4_hba.max_cfg_param.max_vpi = 5810 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 5811 phba->sli4_hba.max_cfg_param.vpi_base = 5812 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 5813 phba->sli4_hba.max_cfg_param.max_rpi = 5814 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 5815 phba->sli4_hba.max_cfg_param.rpi_base = 5816 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 5817 phba->sli4_hba.max_cfg_param.max_vfi = 5818 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 5819 phba->sli4_hba.max_cfg_param.vfi_base = 5820 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 5821 phba->sli4_hba.max_cfg_param.max_fcfi = 5822 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 5823 phba->sli4_hba.max_cfg_param.fcfi_base = 5824 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config); 5825 phba->sli4_hba.max_cfg_param.max_eq = 5826 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 5827 phba->sli4_hba.max_cfg_param.max_rq = 5828 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 5829 phba->sli4_hba.max_cfg_param.max_wq = 5830 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 5831 phba->sli4_hba.max_cfg_param.max_cq = 5832 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 5833 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 5834 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 5835 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 5836 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 5837 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 5838 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 5839 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 5840 phba->max_vports = phba->max_vpi; 5841 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5842 "2003 cfg params XRI(B:%d M:%d), " 5843 "VPI(B:%d M:%d) " 5844 "VFI(B:%d M:%d) " 5845 "RPI(B:%d M:%d) " 5846 "FCFI(B:%d M:%d)\n", 5847 phba->sli4_hba.max_cfg_param.xri_base, 5848 phba->sli4_hba.max_cfg_param.max_xri, 5849 phba->sli4_hba.max_cfg_param.vpi_base, 5850 phba->sli4_hba.max_cfg_param.max_vpi, 5851 phba->sli4_hba.max_cfg_param.vfi_base, 5852 phba->sli4_hba.max_cfg_param.max_vfi, 5853 phba->sli4_hba.max_cfg_param.rpi_base, 5854 phba->sli4_hba.max_cfg_param.max_rpi, 5855 phba->sli4_hba.max_cfg_param.fcfi_base, 5856 phba->sli4_hba.max_cfg_param.max_fcfi); 5857 } 5858 mempool_free(pmb, phba->mbox_mem_pool); 5859 5860 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 5861 if (phba->cfg_hba_queue_depth > 5862 (phba->sli4_hba.max_cfg_param.max_xri - 5863 lpfc_sli4_get_els_iocb_cnt(phba))) 5864 phba->cfg_hba_queue_depth = 5865 phba->sli4_hba.max_cfg_param.max_xri - 5866 lpfc_sli4_get_els_iocb_cnt(phba); 5867 return rc; 5868} 5869 5870/** 5871 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 5872 * @phba: pointer to lpfc hba data structure. 5873 * 5874 * This routine is invoked to setup the port-side endian order when 5875 * the port if_type is 0. This routine has no function for other 5876 * if_types. 5877 * 5878 * Return codes 5879 * 0 - successful 5880 * -ENOMEM - No available memory 5881 * -EIO - The mailbox failed to complete successfully. 5882 **/ 5883static int 5884lpfc_setup_endian_order(struct lpfc_hba *phba) 5885{ 5886 LPFC_MBOXQ_t *mboxq; 5887 uint32_t if_type, rc = 0; 5888 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 5889 HOST_ENDIAN_HIGH_WORD1}; 5890 5891 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 5892 switch (if_type) { 5893 case LPFC_SLI_INTF_IF_TYPE_0: 5894 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 5895 GFP_KERNEL); 5896 if (!mboxq) { 5897 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5898 "0492 Unable to allocate memory for " 5899 "issuing SLI_CONFIG_SPECIAL mailbox " 5900 "command\n"); 5901 return -ENOMEM; 5902 } 5903 5904 /* 5905 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 5906 * two words to contain special data values and no other data. 5907 */ 5908 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 5909 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 5910 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5911 if (rc != MBX_SUCCESS) { 5912 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5913 "0493 SLI_CONFIG_SPECIAL mailbox " 5914 "failed with status x%x\n", 5915 rc); 5916 rc = -EIO; 5917 } 5918 mempool_free(mboxq, phba->mbox_mem_pool); 5919 break; 5920 case LPFC_SLI_INTF_IF_TYPE_2: 5921 case LPFC_SLI_INTF_IF_TYPE_1: 5922 default: 5923 break; 5924 } 5925 return rc; 5926} 5927 5928/** 5929 * lpfc_sli4_queue_create - Create all the SLI4 queues 5930 * @phba: pointer to lpfc hba data structure. 5931 * 5932 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 5933 * operation. For each SLI4 queue type, the parameters such as queue entry 5934 * count (queue depth) shall be taken from the module parameter. For now, 5935 * we just use some constant number as place holder. 5936 * 5937 * Return codes 5938 * 0 - successful 5939 * -ENOMEM - No available memory 5940 * -EIO - The mailbox failed to complete successfully. 5941 **/ 5942static int 5943lpfc_sli4_queue_create(struct lpfc_hba *phba) 5944{ 5945 struct lpfc_queue *qdesc; 5946 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5947 int cfg_fcp_wq_count; 5948 int cfg_fcp_eq_count; 5949 5950 /* 5951 * Sanity check for confiugred queue parameters against the run-time 5952 * device parameters 5953 */ 5954 5955 /* Sanity check on FCP fast-path WQ parameters */ 5956 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 5957 if (cfg_fcp_wq_count > 5958 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 5959 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 5960 LPFC_SP_WQN_DEF; 5961 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 5962 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5963 "2581 Not enough WQs (%d) from " 5964 "the pci function for supporting " 5965 "FCP WQs (%d)\n", 5966 phba->sli4_hba.max_cfg_param.max_wq, 5967 phba->cfg_fcp_wq_count); 5968 goto out_error; 5969 } 5970 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5971 "2582 Not enough WQs (%d) from the pci " 5972 "function for supporting the requested " 5973 "FCP WQs (%d), the actual FCP WQs can " 5974 "be supported: %d\n", 5975 phba->sli4_hba.max_cfg_param.max_wq, 5976 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 5977 } 5978 /* The actual number of FCP work queues adopted */ 5979 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 5980 5981 /* Sanity check on FCP fast-path EQ parameters */ 5982 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 5983 if (cfg_fcp_eq_count > 5984 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 5985 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 5986 LPFC_SP_EQN_DEF; 5987 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 5988 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5989 "2574 Not enough EQs (%d) from the " 5990 "pci function for supporting FCP " 5991 "EQs (%d)\n", 5992 phba->sli4_hba.max_cfg_param.max_eq, 5993 phba->cfg_fcp_eq_count); 5994 goto out_error; 5995 } 5996 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5997 "2575 Not enough EQs (%d) from the pci " 5998 "function for supporting the requested " 5999 "FCP EQs (%d), the actual FCP EQs can " 6000 "be supported: %d\n", 6001 phba->sli4_hba.max_cfg_param.max_eq, 6002 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 6003 } 6004 /* It does not make sense to have more EQs than WQs */ 6005 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 6006 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6007 "2593 The FCP EQ count(%d) cannot be greater " 6008 "than the FCP WQ count(%d), limiting the " 6009 "FCP EQ count to %d\n", cfg_fcp_eq_count, 6010 phba->cfg_fcp_wq_count, 6011 phba->cfg_fcp_wq_count); 6012 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 6013 } 6014 /* The actual number of FCP event queues adopted */ 6015 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 6016 /* The overall number of event queues used */ 6017 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 6018 6019 /* 6020 * Create Event Queues (EQs) 6021 */ 6022 6023 /* Get EQ depth from module parameter, fake the default for now */ 6024 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 6025 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 6026 6027 /* Create slow path event queue */ 6028 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6029 phba->sli4_hba.eq_ecount); 6030 if (!qdesc) { 6031 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6032 "0496 Failed allocate slow-path EQ\n"); 6033 goto out_error; 6034 } 6035 phba->sli4_hba.sp_eq = qdesc; 6036 6037 /* Create fast-path FCP Event Queue(s) */ 6038 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 6039 phba->cfg_fcp_eq_count), GFP_KERNEL); 6040 if (!phba->sli4_hba.fp_eq) { 6041 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6042 "2576 Failed allocate memory for fast-path " 6043 "EQ record array\n"); 6044 goto out_free_sp_eq; 6045 } 6046 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6047 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6048 phba->sli4_hba.eq_ecount); 6049 if (!qdesc) { 6050 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6051 "0497 Failed allocate fast-path EQ\n"); 6052 goto out_free_fp_eq; 6053 } 6054 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 6055 } 6056 6057 /* 6058 * Create Complete Queues (CQs) 6059 */ 6060 6061 /* Get CQ depth from module parameter, fake the default for now */ 6062 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 6063 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 6064 6065 /* Create slow-path Mailbox Command Complete Queue */ 6066 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6067 phba->sli4_hba.cq_ecount); 6068 if (!qdesc) { 6069 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6070 "0500 Failed allocate slow-path mailbox CQ\n"); 6071 goto out_free_fp_eq; 6072 } 6073 phba->sli4_hba.mbx_cq = qdesc; 6074 6075 /* Create slow-path ELS Complete Queue */ 6076 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6077 phba->sli4_hba.cq_ecount); 6078 if (!qdesc) { 6079 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6080 "0501 Failed allocate slow-path ELS CQ\n"); 6081 goto out_free_mbx_cq; 6082 } 6083 phba->sli4_hba.els_cq = qdesc; 6084 6085 6086 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ 6087 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 6088 phba->cfg_fcp_eq_count), GFP_KERNEL); 6089 if (!phba->sli4_hba.fcp_cq) { 6090 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6091 "2577 Failed allocate memory for fast-path " 6092 "CQ record array\n"); 6093 goto out_free_els_cq; 6094 } 6095 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 6096 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6097 phba->sli4_hba.cq_ecount); 6098 if (!qdesc) { 6099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6100 "0499 Failed allocate fast-path FCP " 6101 "CQ (%d)\n", fcp_cqidx); 6102 goto out_free_fcp_cq; 6103 } 6104 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 6105 } 6106 6107 /* Create Mailbox Command Queue */ 6108 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 6109 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 6110 6111 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 6112 phba->sli4_hba.mq_ecount); 6113 if (!qdesc) { 6114 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6115 "0505 Failed allocate slow-path MQ\n"); 6116 goto out_free_fcp_cq; 6117 } 6118 phba->sli4_hba.mbx_wq = qdesc; 6119 6120 /* 6121 * Create all the Work Queues (WQs) 6122 */ 6123 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 6124 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 6125 6126 /* Create slow-path ELS Work Queue */ 6127 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6128 phba->sli4_hba.wq_ecount); 6129 if (!qdesc) { 6130 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6131 "0504 Failed allocate slow-path ELS WQ\n"); 6132 goto out_free_mbx_wq; 6133 } 6134 phba->sli4_hba.els_wq = qdesc; 6135 6136 /* Create fast-path FCP Work Queue(s) */ 6137 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 6138 phba->cfg_fcp_wq_count), GFP_KERNEL); 6139 if (!phba->sli4_hba.fcp_wq) { 6140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6141 "2578 Failed allocate memory for fast-path " 6142 "WQ record array\n"); 6143 goto out_free_els_wq; 6144 } 6145 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6146 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6147 phba->sli4_hba.wq_ecount); 6148 if (!qdesc) { 6149 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6150 "0503 Failed allocate fast-path FCP " 6151 "WQ (%d)\n", fcp_wqidx); 6152 goto out_free_fcp_wq; 6153 } 6154 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 6155 } 6156 6157 /* 6158 * Create Receive Queue (RQ) 6159 */ 6160 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 6161 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 6162 6163 /* Create Receive Queue for header */ 6164 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6165 phba->sli4_hba.rq_ecount); 6166 if (!qdesc) { 6167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6168 "0506 Failed allocate receive HRQ\n"); 6169 goto out_free_fcp_wq; 6170 } 6171 phba->sli4_hba.hdr_rq = qdesc; 6172 6173 /* Create Receive Queue for data */ 6174 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6175 phba->sli4_hba.rq_ecount); 6176 if (!qdesc) { 6177 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6178 "0507 Failed allocate receive DRQ\n"); 6179 goto out_free_hdr_rq; 6180 } 6181 phba->sli4_hba.dat_rq = qdesc; 6182 6183 return 0; 6184 6185out_free_hdr_rq: 6186 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6187 phba->sli4_hba.hdr_rq = NULL; 6188out_free_fcp_wq: 6189 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 6190 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 6191 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 6192 } 6193 kfree(phba->sli4_hba.fcp_wq); 6194out_free_els_wq: 6195 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6196 phba->sli4_hba.els_wq = NULL; 6197out_free_mbx_wq: 6198 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6199 phba->sli4_hba.mbx_wq = NULL; 6200out_free_fcp_cq: 6201 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 6202 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 6203 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 6204 } 6205 kfree(phba->sli4_hba.fcp_cq); 6206out_free_els_cq: 6207 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6208 phba->sli4_hba.els_cq = NULL; 6209out_free_mbx_cq: 6210 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6211 phba->sli4_hba.mbx_cq = NULL; 6212out_free_fp_eq: 6213 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 6214 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 6215 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 6216 } 6217 kfree(phba->sli4_hba.fp_eq); 6218out_free_sp_eq: 6219 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6220 phba->sli4_hba.sp_eq = NULL; 6221out_error: 6222 return -ENOMEM; 6223} 6224 6225/** 6226 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 6227 * @phba: pointer to lpfc hba data structure. 6228 * 6229 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 6230 * operation. 6231 * 6232 * Return codes 6233 * 0 - successful 6234 * -ENOMEM - No available memory 6235 * -EIO - The mailbox failed to complete successfully. 6236 **/ 6237static void 6238lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 6239{ 6240 int fcp_qidx; 6241 6242 /* Release mailbox command work queue */ 6243 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6244 phba->sli4_hba.mbx_wq = NULL; 6245 6246 /* Release ELS work queue */ 6247 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6248 phba->sli4_hba.els_wq = NULL; 6249 6250 /* Release FCP work queue */ 6251 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6252 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 6253 kfree(phba->sli4_hba.fcp_wq); 6254 phba->sli4_hba.fcp_wq = NULL; 6255 6256 /* Release unsolicited receive queue */ 6257 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6258 phba->sli4_hba.hdr_rq = NULL; 6259 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 6260 phba->sli4_hba.dat_rq = NULL; 6261 6262 /* Release ELS complete queue */ 6263 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6264 phba->sli4_hba.els_cq = NULL; 6265 6266 /* Release mailbox command complete queue */ 6267 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6268 phba->sli4_hba.mbx_cq = NULL; 6269 6270 /* Release FCP response complete queue */ 6271 fcp_qidx = 0; 6272 do 6273 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 6274 while (++fcp_qidx < phba->cfg_fcp_eq_count); 6275 kfree(phba->sli4_hba.fcp_cq); 6276 phba->sli4_hba.fcp_cq = NULL; 6277 6278 /* Release fast-path event queue */ 6279 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6280 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 6281 kfree(phba->sli4_hba.fp_eq); 6282 phba->sli4_hba.fp_eq = NULL; 6283 6284 /* Release slow-path event queue */ 6285 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6286 phba->sli4_hba.sp_eq = NULL; 6287 6288 return; 6289} 6290 6291/** 6292 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 6293 * @phba: pointer to lpfc hba data structure. 6294 * 6295 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 6296 * operation. 6297 * 6298 * Return codes 6299 * 0 - successful 6300 * -ENOMEM - No available memory 6301 * -EIO - The mailbox failed to complete successfully. 6302 **/ 6303int 6304lpfc_sli4_queue_setup(struct lpfc_hba *phba) 6305{ 6306 int rc = -ENOMEM; 6307 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6308 int fcp_cq_index = 0; 6309 6310 /* 6311 * Set up Event Queues (EQs) 6312 */ 6313 6314 /* Set up slow-path event queue */ 6315 if (!phba->sli4_hba.sp_eq) { 6316 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6317 "0520 Slow-path EQ not allocated\n"); 6318 goto out_error; 6319 } 6320 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 6321 LPFC_SP_DEF_IMAX); 6322 if (rc) { 6323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6324 "0521 Failed setup of slow-path EQ: " 6325 "rc = 0x%x\n", rc); 6326 goto out_error; 6327 } 6328 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6329 "2583 Slow-path EQ setup: queue-id=%d\n", 6330 phba->sli4_hba.sp_eq->queue_id); 6331 6332 /* Set up fast-path event queue */ 6333 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6334 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 6335 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6336 "0522 Fast-path EQ (%d) not " 6337 "allocated\n", fcp_eqidx); 6338 goto out_destroy_fp_eq; 6339 } 6340 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 6341 phba->cfg_fcp_imax); 6342 if (rc) { 6343 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6344 "0523 Failed setup of fast-path EQ " 6345 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 6346 goto out_destroy_fp_eq; 6347 } 6348 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6349 "2584 Fast-path EQ setup: " 6350 "queue[%d]-id=%d\n", fcp_eqidx, 6351 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 6352 } 6353 6354 /* 6355 * Set up Complete Queues (CQs) 6356 */ 6357 6358 /* Set up slow-path MBOX Complete Queue as the first CQ */ 6359 if (!phba->sli4_hba.mbx_cq) { 6360 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6361 "0528 Mailbox CQ not allocated\n"); 6362 goto out_destroy_fp_eq; 6363 } 6364 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 6365 LPFC_MCQ, LPFC_MBOX); 6366 if (rc) { 6367 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6368 "0529 Failed setup of slow-path mailbox CQ: " 6369 "rc = 0x%x\n", rc); 6370 goto out_destroy_fp_eq; 6371 } 6372 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6373 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 6374 phba->sli4_hba.mbx_cq->queue_id, 6375 phba->sli4_hba.sp_eq->queue_id); 6376 6377 /* Set up slow-path ELS Complete Queue */ 6378 if (!phba->sli4_hba.els_cq) { 6379 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6380 "0530 ELS CQ not allocated\n"); 6381 goto out_destroy_mbx_cq; 6382 } 6383 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 6384 LPFC_WCQ, LPFC_ELS); 6385 if (rc) { 6386 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6387 "0531 Failed setup of slow-path ELS CQ: " 6388 "rc = 0x%x\n", rc); 6389 goto out_destroy_mbx_cq; 6390 } 6391 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6392 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 6393 phba->sli4_hba.els_cq->queue_id, 6394 phba->sli4_hba.sp_eq->queue_id); 6395 6396 /* Set up fast-path FCP Response Complete Queue */ 6397 fcp_cqidx = 0; 6398 do { 6399 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 6400 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6401 "0526 Fast-path FCP CQ (%d) not " 6402 "allocated\n", fcp_cqidx); 6403 goto out_destroy_fcp_cq; 6404 } 6405 if (phba->cfg_fcp_eq_count) 6406 rc = lpfc_cq_create(phba, 6407 phba->sli4_hba.fcp_cq[fcp_cqidx], 6408 phba->sli4_hba.fp_eq[fcp_cqidx], 6409 LPFC_WCQ, LPFC_FCP); 6410 else 6411 rc = lpfc_cq_create(phba, 6412 phba->sli4_hba.fcp_cq[fcp_cqidx], 6413 phba->sli4_hba.sp_eq, 6414 LPFC_WCQ, LPFC_FCP); 6415 if (rc) { 6416 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6417 "0527 Failed setup of fast-path FCP " 6418 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 6419 goto out_destroy_fcp_cq; 6420 } 6421 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6422 "2588 FCP CQ setup: cq[%d]-id=%d, " 6423 "parent %seq[%d]-id=%d\n", 6424 fcp_cqidx, 6425 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 6426 (phba->cfg_fcp_eq_count) ? "" : "sp_", 6427 fcp_cqidx, 6428 (phba->cfg_fcp_eq_count) ? 6429 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id : 6430 phba->sli4_hba.sp_eq->queue_id); 6431 } while (++fcp_cqidx < phba->cfg_fcp_eq_count); 6432 6433 /* 6434 * Set up all the Work Queues (WQs) 6435 */ 6436 6437 /* Set up Mailbox Command Queue */ 6438 if (!phba->sli4_hba.mbx_wq) { 6439 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6440 "0538 Slow-path MQ not allocated\n"); 6441 goto out_destroy_fcp_cq; 6442 } 6443 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 6444 phba->sli4_hba.mbx_cq, LPFC_MBOX); 6445 if (rc) { 6446 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6447 "0539 Failed setup of slow-path MQ: " 6448 "rc = 0x%x\n", rc); 6449 goto out_destroy_fcp_cq; 6450 } 6451 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6452 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 6453 phba->sli4_hba.mbx_wq->queue_id, 6454 phba->sli4_hba.mbx_cq->queue_id); 6455 6456 /* Set up slow-path ELS Work Queue */ 6457 if (!phba->sli4_hba.els_wq) { 6458 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6459 "0536 Slow-path ELS WQ not allocated\n"); 6460 goto out_destroy_mbx_wq; 6461 } 6462 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 6463 phba->sli4_hba.els_cq, LPFC_ELS); 6464 if (rc) { 6465 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6466 "0537 Failed setup of slow-path ELS WQ: " 6467 "rc = 0x%x\n", rc); 6468 goto out_destroy_mbx_wq; 6469 } 6470 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6471 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 6472 phba->sli4_hba.els_wq->queue_id, 6473 phba->sli4_hba.els_cq->queue_id); 6474 6475 /* Set up fast-path FCP Work Queue */ 6476 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6477 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 6478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6479 "0534 Fast-path FCP WQ (%d) not " 6480 "allocated\n", fcp_wqidx); 6481 goto out_destroy_fcp_wq; 6482 } 6483 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 6484 phba->sli4_hba.fcp_cq[fcp_cq_index], 6485 LPFC_FCP); 6486 if (rc) { 6487 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6488 "0535 Failed setup of fast-path FCP " 6489 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 6490 goto out_destroy_fcp_wq; 6491 } 6492 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6493 "2591 FCP WQ setup: wq[%d]-id=%d, " 6494 "parent cq[%d]-id=%d\n", 6495 fcp_wqidx, 6496 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 6497 fcp_cq_index, 6498 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 6499 /* Round robin FCP Work Queue's Completion Queue assignment */ 6500 if (phba->cfg_fcp_eq_count) 6501 fcp_cq_index = ((fcp_cq_index + 1) % 6502 phba->cfg_fcp_eq_count); 6503 } 6504 6505 /* 6506 * Create Receive Queue (RQ) 6507 */ 6508 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 6509 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6510 "0540 Receive Queue not allocated\n"); 6511 goto out_destroy_fcp_wq; 6512 } 6513 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 6514 phba->sli4_hba.els_cq, LPFC_USOL); 6515 if (rc) { 6516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6517 "0541 Failed setup of Receive Queue: " 6518 "rc = 0x%x\n", rc); 6519 goto out_destroy_fcp_wq; 6520 } 6521 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6522 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 6523 "parent cq-id=%d\n", 6524 phba->sli4_hba.hdr_rq->queue_id, 6525 phba->sli4_hba.dat_rq->queue_id, 6526 phba->sli4_hba.els_cq->queue_id); 6527 return 0; 6528 6529out_destroy_fcp_wq: 6530 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 6531 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 6532 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6533out_destroy_mbx_wq: 6534 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6535out_destroy_fcp_cq: 6536 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 6537 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 6538 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6539out_destroy_mbx_cq: 6540 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6541out_destroy_fp_eq: 6542 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 6543 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 6544 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6545out_error: 6546 return rc; 6547} 6548 6549/** 6550 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 6551 * @phba: pointer to lpfc hba data structure. 6552 * 6553 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 6554 * operation. 6555 * 6556 * Return codes 6557 * 0 - successful 6558 * -ENOMEM - No available memory 6559 * -EIO - The mailbox failed to complete successfully. 6560 **/ 6561void 6562lpfc_sli4_queue_unset(struct lpfc_hba *phba) 6563{ 6564 int fcp_qidx; 6565 6566 /* Unset mailbox command work queue */ 6567 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6568 /* Unset ELS work queue */ 6569 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6570 /* Unset unsolicited receive queue */ 6571 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 6572 /* Unset FCP work queue */ 6573 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6574 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 6575 /* Unset mailbox command complete queue */ 6576 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6577 /* Unset ELS complete queue */ 6578 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6579 /* Unset FCP response complete queue */ 6580 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6581 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 6582 /* Unset fast-path event queue */ 6583 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6584 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 6585 /* Unset slow-path event queue */ 6586 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6587} 6588 6589/** 6590 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 6591 * @phba: pointer to lpfc hba data structure. 6592 * 6593 * This routine is invoked to allocate and set up a pool of completion queue 6594 * events. The body of the completion queue event is a completion queue entry 6595 * CQE. For now, this pool is used for the interrupt service routine to queue 6596 * the following HBA completion queue events for the worker thread to process: 6597 * - Mailbox asynchronous events 6598 * - Receive queue completion unsolicited events 6599 * Later, this can be used for all the slow-path events. 6600 * 6601 * Return codes 6602 * 0 - successful 6603 * -ENOMEM - No available memory 6604 **/ 6605static int 6606lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 6607{ 6608 struct lpfc_cq_event *cq_event; 6609 int i; 6610 6611 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 6612 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 6613 if (!cq_event) 6614 goto out_pool_create_fail; 6615 list_add_tail(&cq_event->list, 6616 &phba->sli4_hba.sp_cqe_event_pool); 6617 } 6618 return 0; 6619 6620out_pool_create_fail: 6621 lpfc_sli4_cq_event_pool_destroy(phba); 6622 return -ENOMEM; 6623} 6624 6625/** 6626 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 6627 * @phba: pointer to lpfc hba data structure. 6628 * 6629 * This routine is invoked to free the pool of completion queue events at 6630 * driver unload time. Note that, it is the responsibility of the driver 6631 * cleanup routine to free all the outstanding completion-queue events 6632 * allocated from this pool back into the pool before invoking this routine 6633 * to destroy the pool. 6634 **/ 6635static void 6636lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 6637{ 6638 struct lpfc_cq_event *cq_event, *next_cq_event; 6639 6640 list_for_each_entry_safe(cq_event, next_cq_event, 6641 &phba->sli4_hba.sp_cqe_event_pool, list) { 6642 list_del(&cq_event->list); 6643 kfree(cq_event); 6644 } 6645} 6646 6647/** 6648 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6649 * @phba: pointer to lpfc hba data structure. 6650 * 6651 * This routine is the lock free version of the API invoked to allocate a 6652 * completion-queue event from the free pool. 6653 * 6654 * Return: Pointer to the newly allocated completion-queue event if successful 6655 * NULL otherwise. 6656 **/ 6657struct lpfc_cq_event * 6658__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6659{ 6660 struct lpfc_cq_event *cq_event = NULL; 6661 6662 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 6663 struct lpfc_cq_event, list); 6664 return cq_event; 6665} 6666 6667/** 6668 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6669 * @phba: pointer to lpfc hba data structure. 6670 * 6671 * This routine is the lock version of the API invoked to allocate a 6672 * completion-queue event from the free pool. 6673 * 6674 * Return: Pointer to the newly allocated completion-queue event if successful 6675 * NULL otherwise. 6676 **/ 6677struct lpfc_cq_event * 6678lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6679{ 6680 struct lpfc_cq_event *cq_event; 6681 unsigned long iflags; 6682 6683 spin_lock_irqsave(&phba->hbalock, iflags); 6684 cq_event = __lpfc_sli4_cq_event_alloc(phba); 6685 spin_unlock_irqrestore(&phba->hbalock, iflags); 6686 return cq_event; 6687} 6688 6689/** 6690 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6691 * @phba: pointer to lpfc hba data structure. 6692 * @cq_event: pointer to the completion queue event to be freed. 6693 * 6694 * This routine is the lock free version of the API invoked to release a 6695 * completion-queue event back into the free pool. 6696 **/ 6697void 6698__lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6699 struct lpfc_cq_event *cq_event) 6700{ 6701 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 6702} 6703 6704/** 6705 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6706 * @phba: pointer to lpfc hba data structure. 6707 * @cq_event: pointer to the completion queue event to be freed. 6708 * 6709 * This routine is the lock version of the API invoked to release a 6710 * completion-queue event back into the free pool. 6711 **/ 6712void 6713lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6714 struct lpfc_cq_event *cq_event) 6715{ 6716 unsigned long iflags; 6717 spin_lock_irqsave(&phba->hbalock, iflags); 6718 __lpfc_sli4_cq_event_release(phba, cq_event); 6719 spin_unlock_irqrestore(&phba->hbalock, iflags); 6720} 6721 6722/** 6723 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 6724 * @phba: pointer to lpfc hba data structure. 6725 * 6726 * This routine is to free all the pending completion-queue events to the 6727 * back into the free pool for device reset. 6728 **/ 6729static void 6730lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 6731{ 6732 LIST_HEAD(cqelist); 6733 struct lpfc_cq_event *cqe; 6734 unsigned long iflags; 6735 6736 /* Retrieve all the pending WCQEs from pending WCQE lists */ 6737 spin_lock_irqsave(&phba->hbalock, iflags); 6738 /* Pending FCP XRI abort events */ 6739 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 6740 &cqelist); 6741 /* Pending ELS XRI abort events */ 6742 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 6743 &cqelist); 6744 /* Pending asynnc events */ 6745 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 6746 &cqelist); 6747 spin_unlock_irqrestore(&phba->hbalock, iflags); 6748 6749 while (!list_empty(&cqelist)) { 6750 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 6751 lpfc_sli4_cq_event_release(phba, cqe); 6752 } 6753} 6754 6755/** 6756 * lpfc_pci_function_reset - Reset pci function. 6757 * @phba: pointer to lpfc hba data structure. 6758 * 6759 * This routine is invoked to request a PCI function reset. It will destroys 6760 * all resources assigned to the PCI function which originates this request. 6761 * 6762 * Return codes 6763 * 0 - successful 6764 * -ENOMEM - No available memory 6765 * -EIO - The mailbox failed to complete successfully. 6766 **/ 6767int 6768lpfc_pci_function_reset(struct lpfc_hba *phba) 6769{ 6770 LPFC_MBOXQ_t *mboxq; 6771 uint32_t rc = 0, if_type; 6772 uint32_t shdr_status, shdr_add_status; 6773 uint32_t rdy_chk, num_resets = 0, reset_again = 0; 6774 union lpfc_sli4_cfg_shdr *shdr; 6775 struct lpfc_register reg_data; 6776 6777 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 6778 switch (if_type) { 6779 case LPFC_SLI_INTF_IF_TYPE_0: 6780 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6781 GFP_KERNEL); 6782 if (!mboxq) { 6783 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6784 "0494 Unable to allocate memory for " 6785 "issuing SLI_FUNCTION_RESET mailbox " 6786 "command\n"); 6787 return -ENOMEM; 6788 } 6789 6790 /* Setup PCI function reset mailbox-ioctl command */ 6791 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6792 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 6793 LPFC_SLI4_MBX_EMBED); 6794 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6795 shdr = (union lpfc_sli4_cfg_shdr *) 6796 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6797 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6798 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 6799 &shdr->response); 6800 if (rc != MBX_TIMEOUT) 6801 mempool_free(mboxq, phba->mbox_mem_pool); 6802 if (shdr_status || shdr_add_status || rc) { 6803 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6804 "0495 SLI_FUNCTION_RESET mailbox " 6805 "failed with status x%x add_status x%x," 6806 " mbx status x%x\n", 6807 shdr_status, shdr_add_status, rc); 6808 rc = -ENXIO; 6809 } 6810 break; 6811 case LPFC_SLI_INTF_IF_TYPE_2: 6812 for (num_resets = 0; 6813 num_resets < MAX_IF_TYPE_2_RESETS; 6814 num_resets++) { 6815 reg_data.word0 = 0; 6816 bf_set(lpfc_sliport_ctrl_end, ®_data, 6817 LPFC_SLIPORT_LITTLE_ENDIAN); 6818 bf_set(lpfc_sliport_ctrl_ip, ®_data, 6819 LPFC_SLIPORT_INIT_PORT); 6820 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 6821 CTRLregaddr); 6822 6823 /* 6824 * Poll the Port Status Register and wait for RDY for 6825 * up to 10 seconds. If the port doesn't respond, treat 6826 * it as an error. If the port responds with RN, start 6827 * the loop again. 6828 */ 6829 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { 6830 if (lpfc_readl(phba->sli4_hba.u.if_type2. 6831 STATUSregaddr, ®_data.word0)) { 6832 rc = -ENODEV; 6833 break; 6834 } 6835 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 6836 break; 6837 if (bf_get(lpfc_sliport_status_rn, ®_data)) { 6838 reset_again++; 6839 break; 6840 } 6841 msleep(10); 6842 } 6843 6844 /* 6845 * If the port responds to the init request with 6846 * reset needed, delay for a bit and restart the loop. 6847 */ 6848 if (reset_again) { 6849 msleep(10); 6850 reset_again = 0; 6851 continue; 6852 } 6853 6854 /* Detect any port errors. */ 6855 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 6856 ®_data.word0)) { 6857 rc = -ENODEV; 6858 break; 6859 } 6860 if ((bf_get(lpfc_sliport_status_err, ®_data)) || 6861 (rdy_chk >= 1000)) { 6862 phba->work_status[0] = readl( 6863 phba->sli4_hba.u.if_type2.ERR1regaddr); 6864 phba->work_status[1] = readl( 6865 phba->sli4_hba.u.if_type2.ERR2regaddr); 6866 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6867 "2890 Port Error Detected " 6868 "during Port Reset: " 6869 "port status reg 0x%x, " 6870 "error 1=0x%x, error 2=0x%x\n", 6871 reg_data.word0, 6872 phba->work_status[0], 6873 phba->work_status[1]); 6874 rc = -ENODEV; 6875 } 6876 6877 /* 6878 * Terminate the outer loop provided the Port indicated 6879 * ready within 10 seconds. 6880 */ 6881 if (rdy_chk < 1000) 6882 break; 6883 } 6884 /* delay driver action following IF_TYPE_2 function reset */ 6885 msleep(100); 6886 break; 6887 case LPFC_SLI_INTF_IF_TYPE_1: 6888 default: 6889 break; 6890 } 6891 6892 /* Catch the not-ready port failure after a port reset. */ 6893 if (num_resets >= MAX_IF_TYPE_2_RESETS) 6894 rc = -ENODEV; 6895 6896 return rc; 6897} 6898 6899/** 6900 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 6901 * @phba: pointer to lpfc hba data structure. 6902 * @cnt: number of nop mailbox commands to send. 6903 * 6904 * This routine is invoked to send a number @cnt of NOP mailbox command and 6905 * wait for each command to complete. 6906 * 6907 * Return: the number of NOP mailbox command completed. 6908 **/ 6909static int 6910lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 6911{ 6912 LPFC_MBOXQ_t *mboxq; 6913 int length, cmdsent; 6914 uint32_t mbox_tmo; 6915 uint32_t rc = 0; 6916 uint32_t shdr_status, shdr_add_status; 6917 union lpfc_sli4_cfg_shdr *shdr; 6918 6919 if (cnt == 0) { 6920 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6921 "2518 Requested to send 0 NOP mailbox cmd\n"); 6922 return cnt; 6923 } 6924 6925 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6926 if (!mboxq) { 6927 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6928 "2519 Unable to allocate memory for issuing " 6929 "NOP mailbox command\n"); 6930 return 0; 6931 } 6932 6933 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 6934 length = (sizeof(struct lpfc_mbx_nop) - 6935 sizeof(struct lpfc_sli4_cfg_mhdr)); 6936 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6937 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 6938 6939 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 6940 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 6941 if (!phba->sli4_hba.intr_enable) 6942 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6943 else 6944 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 6945 if (rc == MBX_TIMEOUT) 6946 break; 6947 /* Check return status */ 6948 shdr = (union lpfc_sli4_cfg_shdr *) 6949 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6950 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6951 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 6952 &shdr->response); 6953 if (shdr_status || shdr_add_status || rc) { 6954 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6955 "2520 NOP mailbox command failed " 6956 "status x%x add_status x%x mbx " 6957 "status x%x\n", shdr_status, 6958 shdr_add_status, rc); 6959 break; 6960 } 6961 } 6962 6963 if (rc != MBX_TIMEOUT) 6964 mempool_free(mboxq, phba->mbox_mem_pool); 6965 6966 return cmdsent; 6967} 6968 6969/** 6970 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 6971 * @phba: pointer to lpfc hba data structure. 6972 * 6973 * This routine is invoked to set up the PCI device memory space for device 6974 * with SLI-4 interface spec. 6975 * 6976 * Return codes 6977 * 0 - successful 6978 * other values - error 6979 **/ 6980static int 6981lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 6982{ 6983 struct pci_dev *pdev; 6984 unsigned long bar0map_len, bar1map_len, bar2map_len; 6985 int error = -ENODEV; 6986 uint32_t if_type; 6987 6988 /* Obtain PCI device reference */ 6989 if (!phba->pcidev) 6990 return error; 6991 else 6992 pdev = phba->pcidev; 6993 6994 /* Set the device DMA mask size */ 6995 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6996 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6997 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6998 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6999 return error; 7000 } 7001 } 7002 7003 /* 7004 * The BARs and register set definitions and offset locations are 7005 * dependent on the if_type. 7006 */ 7007 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 7008 &phba->sli4_hba.sli_intf.word0)) { 7009 return error; 7010 } 7011 7012 /* There is no SLI3 failback for SLI4 devices. */ 7013 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 7014 LPFC_SLI_INTF_VALID) { 7015 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7016 "2894 SLI_INTF reg contents invalid " 7017 "sli_intf reg 0x%x\n", 7018 phba->sli4_hba.sli_intf.word0); 7019 return error; 7020 } 7021 7022 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7023 /* 7024 * Get the bus address of SLI4 device Bar regions and the 7025 * number of bytes required by each mapping. The mapping of the 7026 * particular PCI BARs regions is dependent on the type of 7027 * SLI4 device. 7028 */ 7029 if (pci_resource_start(pdev, 0)) { 7030 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7031 bar0map_len = pci_resource_len(pdev, 0); 7032 7033 /* 7034 * Map SLI4 PCI Config Space Register base to a kernel virtual 7035 * addr 7036 */ 7037 phba->sli4_hba.conf_regs_memmap_p = 7038 ioremap(phba->pci_bar0_map, bar0map_len); 7039 if (!phba->sli4_hba.conf_regs_memmap_p) { 7040 dev_printk(KERN_ERR, &pdev->dev, 7041 "ioremap failed for SLI4 PCI config " 7042 "registers.\n"); 7043 goto out; 7044 } 7045 /* Set up BAR0 PCI config space register memory map */ 7046 lpfc_sli4_bar0_register_memmap(phba, if_type); 7047 } else { 7048 phba->pci_bar0_map = pci_resource_start(pdev, 1); 7049 bar0map_len = pci_resource_len(pdev, 1); 7050 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7051 dev_printk(KERN_ERR, &pdev->dev, 7052 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 7053 goto out; 7054 } 7055 phba->sli4_hba.conf_regs_memmap_p = 7056 ioremap(phba->pci_bar0_map, bar0map_len); 7057 if (!phba->sli4_hba.conf_regs_memmap_p) { 7058 dev_printk(KERN_ERR, &pdev->dev, 7059 "ioremap failed for SLI4 PCI config " 7060 "registers.\n"); 7061 goto out; 7062 } 7063 lpfc_sli4_bar0_register_memmap(phba, if_type); 7064 } 7065 7066 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7067 (pci_resource_start(pdev, 2))) { 7068 /* 7069 * Map SLI4 if type 0 HBA Control Register base to a kernel 7070 * virtual address and setup the registers. 7071 */ 7072 phba->pci_bar1_map = pci_resource_start(pdev, 2); 7073 bar1map_len = pci_resource_len(pdev, 2); 7074 phba->sli4_hba.ctrl_regs_memmap_p = 7075 ioremap(phba->pci_bar1_map, bar1map_len); 7076 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 7077 dev_printk(KERN_ERR, &pdev->dev, 7078 "ioremap failed for SLI4 HBA control registers.\n"); 7079 goto out_iounmap_conf; 7080 } 7081 lpfc_sli4_bar1_register_memmap(phba); 7082 } 7083 7084 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7085 (pci_resource_start(pdev, 4))) { 7086 /* 7087 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 7088 * virtual address and setup the registers. 7089 */ 7090 phba->pci_bar2_map = pci_resource_start(pdev, 4); 7091 bar2map_len = pci_resource_len(pdev, 4); 7092 phba->sli4_hba.drbl_regs_memmap_p = 7093 ioremap(phba->pci_bar2_map, bar2map_len); 7094 if (!phba->sli4_hba.drbl_regs_memmap_p) { 7095 dev_printk(KERN_ERR, &pdev->dev, 7096 "ioremap failed for SLI4 HBA doorbell registers.\n"); 7097 goto out_iounmap_ctrl; 7098 } 7099 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 7100 if (error) 7101 goto out_iounmap_all; 7102 } 7103 7104 return 0; 7105 7106out_iounmap_all: 7107 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7108out_iounmap_ctrl: 7109 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7110out_iounmap_conf: 7111 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7112out: 7113 return error; 7114} 7115 7116/** 7117 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 7118 * @phba: pointer to lpfc hba data structure. 7119 * 7120 * This routine is invoked to unset the PCI device memory space for device 7121 * with SLI-4 interface spec. 7122 **/ 7123static void 7124lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 7125{ 7126 struct pci_dev *pdev; 7127 7128 /* Obtain PCI device reference */ 7129 if (!phba->pcidev) 7130 return; 7131 else 7132 pdev = phba->pcidev; 7133 7134 /* Free coherent DMA memory allocated */ 7135 7136 /* Unmap I/O memory space */ 7137 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7138 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7139 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7140 7141 return; 7142} 7143 7144/** 7145 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 7146 * @phba: pointer to lpfc hba data structure. 7147 * 7148 * This routine is invoked to enable the MSI-X interrupt vectors to device 7149 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 7150 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 7151 * invoked, enables either all or nothing, depending on the current 7152 * availability of PCI vector resources. The device driver is responsible 7153 * for calling the individual request_irq() to register each MSI-X vector 7154 * with a interrupt handler, which is done in this function. Note that 7155 * later when device is unloading, the driver should always call free_irq() 7156 * on all MSI-X vectors it has done request_irq() on before calling 7157 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 7158 * will be left with MSI-X enabled and leaks its vectors. 7159 * 7160 * Return codes 7161 * 0 - successful 7162 * other values - error 7163 **/ 7164static int 7165lpfc_sli_enable_msix(struct lpfc_hba *phba) 7166{ 7167 int rc, i; 7168 LPFC_MBOXQ_t *pmb; 7169 7170 /* Set up MSI-X multi-message vectors */ 7171 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7172 phba->msix_entries[i].entry = i; 7173 7174 /* Configure MSI-X capability structure */ 7175 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 7176 ARRAY_SIZE(phba->msix_entries)); 7177 if (rc) { 7178 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7179 "0420 PCI enable MSI-X failed (%d)\n", rc); 7180 goto msi_fail_out; 7181 } 7182 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7183 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7184 "0477 MSI-X entry[%d]: vector=x%x " 7185 "message=%d\n", i, 7186 phba->msix_entries[i].vector, 7187 phba->msix_entries[i].entry); 7188 /* 7189 * Assign MSI-X vectors to interrupt handlers 7190 */ 7191 7192 /* vector-0 is associated to slow-path handler */ 7193 rc = request_irq(phba->msix_entries[0].vector, 7194 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 7195 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7196 if (rc) { 7197 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7198 "0421 MSI-X slow-path request_irq failed " 7199 "(%d)\n", rc); 7200 goto msi_fail_out; 7201 } 7202 7203 /* vector-1 is associated to fast-path handler */ 7204 rc = request_irq(phba->msix_entries[1].vector, 7205 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 7206 LPFC_FP_DRIVER_HANDLER_NAME, phba); 7207 7208 if (rc) { 7209 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7210 "0429 MSI-X fast-path request_irq failed " 7211 "(%d)\n", rc); 7212 goto irq_fail_out; 7213 } 7214 7215 /* 7216 * Configure HBA MSI-X attention conditions to messages 7217 */ 7218 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7219 7220 if (!pmb) { 7221 rc = -ENOMEM; 7222 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7223 "0474 Unable to allocate memory for issuing " 7224 "MBOX_CONFIG_MSI command\n"); 7225 goto mem_fail_out; 7226 } 7227 rc = lpfc_config_msi(phba, pmb); 7228 if (rc) 7229 goto mbx_fail_out; 7230 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7231 if (rc != MBX_SUCCESS) { 7232 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 7233 "0351 Config MSI mailbox command failed, " 7234 "mbxCmd x%x, mbxStatus x%x\n", 7235 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 7236 goto mbx_fail_out; 7237 } 7238 7239 /* Free memory allocated for mailbox command */ 7240 mempool_free(pmb, phba->mbox_mem_pool); 7241 return rc; 7242 7243mbx_fail_out: 7244 /* Free memory allocated for mailbox command */ 7245 mempool_free(pmb, phba->mbox_mem_pool); 7246 7247mem_fail_out: 7248 /* free the irq already requested */ 7249 free_irq(phba->msix_entries[1].vector, phba); 7250 7251irq_fail_out: 7252 /* free the irq already requested */ 7253 free_irq(phba->msix_entries[0].vector, phba); 7254 7255msi_fail_out: 7256 /* Unconfigure MSI-X capability structure */ 7257 pci_disable_msix(phba->pcidev); 7258 return rc; 7259} 7260 7261/** 7262 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 7263 * @phba: pointer to lpfc hba data structure. 7264 * 7265 * This routine is invoked to release the MSI-X vectors and then disable the 7266 * MSI-X interrupt mode to device with SLI-3 interface spec. 7267 **/ 7268static void 7269lpfc_sli_disable_msix(struct lpfc_hba *phba) 7270{ 7271 int i; 7272 7273 /* Free up MSI-X multi-message vectors */ 7274 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7275 free_irq(phba->msix_entries[i].vector, phba); 7276 /* Disable MSI-X */ 7277 pci_disable_msix(phba->pcidev); 7278 7279 return; 7280} 7281 7282/** 7283 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 7284 * @phba: pointer to lpfc hba data structure. 7285 * 7286 * This routine is invoked to enable the MSI interrupt mode to device with 7287 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 7288 * enable the MSI vector. The device driver is responsible for calling the 7289 * request_irq() to register MSI vector with a interrupt the handler, which 7290 * is done in this function. 7291 * 7292 * Return codes 7293 * 0 - successful 7294 * other values - error 7295 */ 7296static int 7297lpfc_sli_enable_msi(struct lpfc_hba *phba) 7298{ 7299 int rc; 7300 7301 rc = pci_enable_msi(phba->pcidev); 7302 if (!rc) 7303 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7304 "0462 PCI enable MSI mode success.\n"); 7305 else { 7306 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7307 "0471 PCI enable MSI mode failed (%d)\n", rc); 7308 return rc; 7309 } 7310 7311 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 7312 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7313 if (rc) { 7314 pci_disable_msi(phba->pcidev); 7315 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7316 "0478 MSI request_irq failed (%d)\n", rc); 7317 } 7318 return rc; 7319} 7320 7321/** 7322 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 7323 * @phba: pointer to lpfc hba data structure. 7324 * 7325 * This routine is invoked to disable the MSI interrupt mode to device with 7326 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 7327 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7328 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7329 * its vector. 7330 */ 7331static void 7332lpfc_sli_disable_msi(struct lpfc_hba *phba) 7333{ 7334 free_irq(phba->pcidev->irq, phba); 7335 pci_disable_msi(phba->pcidev); 7336 return; 7337} 7338 7339/** 7340 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 7341 * @phba: pointer to lpfc hba data structure. 7342 * 7343 * This routine is invoked to enable device interrupt and associate driver's 7344 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 7345 * spec. Depends on the interrupt mode configured to the driver, the driver 7346 * will try to fallback from the configured interrupt mode to an interrupt 7347 * mode which is supported by the platform, kernel, and device in the order 7348 * of: 7349 * MSI-X -> MSI -> IRQ. 7350 * 7351 * Return codes 7352 * 0 - successful 7353 * other values - error 7354 **/ 7355static uint32_t 7356lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7357{ 7358 uint32_t intr_mode = LPFC_INTR_ERROR; 7359 int retval; 7360 7361 if (cfg_mode == 2) { 7362 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 7363 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 7364 if (!retval) { 7365 /* Now, try to enable MSI-X interrupt mode */ 7366 retval = lpfc_sli_enable_msix(phba); 7367 if (!retval) { 7368 /* Indicate initialization to MSI-X mode */ 7369 phba->intr_type = MSIX; 7370 intr_mode = 2; 7371 } 7372 } 7373 } 7374 7375 /* Fallback to MSI if MSI-X initialization failed */ 7376 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7377 retval = lpfc_sli_enable_msi(phba); 7378 if (!retval) { 7379 /* Indicate initialization to MSI mode */ 7380 phba->intr_type = MSI; 7381 intr_mode = 1; 7382 } 7383 } 7384 7385 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7386 if (phba->intr_type == NONE) { 7387 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 7388 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7389 if (!retval) { 7390 /* Indicate initialization to INTx mode */ 7391 phba->intr_type = INTx; 7392 intr_mode = 0; 7393 } 7394 } 7395 return intr_mode; 7396} 7397 7398/** 7399 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 7400 * @phba: pointer to lpfc hba data structure. 7401 * 7402 * This routine is invoked to disable device interrupt and disassociate the 7403 * driver's interrupt handler(s) from interrupt vector(s) to device with 7404 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 7405 * release the interrupt vector(s) for the message signaled interrupt. 7406 **/ 7407static void 7408lpfc_sli_disable_intr(struct lpfc_hba *phba) 7409{ 7410 /* Disable the currently initialized interrupt mode */ 7411 if (phba->intr_type == MSIX) 7412 lpfc_sli_disable_msix(phba); 7413 else if (phba->intr_type == MSI) 7414 lpfc_sli_disable_msi(phba); 7415 else if (phba->intr_type == INTx) 7416 free_irq(phba->pcidev->irq, phba); 7417 7418 /* Reset interrupt management states */ 7419 phba->intr_type = NONE; 7420 phba->sli.slistat.sli_intr = 0; 7421 7422 return; 7423} 7424 7425/** 7426 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 7427 * @phba: pointer to lpfc hba data structure. 7428 * 7429 * This routine is invoked to enable the MSI-X interrupt vectors to device 7430 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 7431 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 7432 * enables either all or nothing, depending on the current availability of 7433 * PCI vector resources. The device driver is responsible for calling the 7434 * individual request_irq() to register each MSI-X vector with a interrupt 7435 * handler, which is done in this function. Note that later when device is 7436 * unloading, the driver should always call free_irq() on all MSI-X vectors 7437 * it has done request_irq() on before calling pci_disable_msix(). Failure 7438 * to do so results in a BUG_ON() and a device will be left with MSI-X 7439 * enabled and leaks its vectors. 7440 * 7441 * Return codes 7442 * 0 - successful 7443 * other values - error 7444 **/ 7445static int 7446lpfc_sli4_enable_msix(struct lpfc_hba *phba) 7447{ 7448 int vectors, rc, index; 7449 7450 /* Set up MSI-X multi-message vectors */ 7451 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 7452 phba->sli4_hba.msix_entries[index].entry = index; 7453 7454 /* Configure MSI-X capability structure */ 7455 vectors = phba->sli4_hba.cfg_eqn; 7456enable_msix_vectors: 7457 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 7458 vectors); 7459 if (rc > 1) { 7460 vectors = rc; 7461 goto enable_msix_vectors; 7462 } else if (rc) { 7463 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7464 "0484 PCI enable MSI-X failed (%d)\n", rc); 7465 goto msi_fail_out; 7466 } 7467 7468 /* Log MSI-X vector assignment */ 7469 for (index = 0; index < vectors; index++) 7470 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7471 "0489 MSI-X entry[%d]: vector=x%x " 7472 "message=%d\n", index, 7473 phba->sli4_hba.msix_entries[index].vector, 7474 phba->sli4_hba.msix_entries[index].entry); 7475 /* 7476 * Assign MSI-X vectors to interrupt handlers 7477 */ 7478 if (vectors > 1) 7479 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7480 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 7481 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7482 else 7483 /* All Interrupts need to be handled by one EQ */ 7484 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7485 &lpfc_sli4_intr_handler, IRQF_SHARED, 7486 LPFC_DRIVER_NAME, phba); 7487 if (rc) { 7488 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7489 "0485 MSI-X slow-path request_irq failed " 7490 "(%d)\n", rc); 7491 goto msi_fail_out; 7492 } 7493 7494 /* The rest of the vector(s) are associated to fast-path handler(s) */ 7495 for (index = 1; index < vectors; index++) { 7496 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 7497 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 7498 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 7499 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 7500 LPFC_FP_DRIVER_HANDLER_NAME, 7501 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7502 if (rc) { 7503 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7504 "0486 MSI-X fast-path (%d) " 7505 "request_irq failed (%d)\n", index, rc); 7506 goto cfg_fail_out; 7507 } 7508 } 7509 phba->sli4_hba.msix_vec_nr = vectors; 7510 7511 return rc; 7512 7513cfg_fail_out: 7514 /* free the irq already requested */ 7515 for (--index; index >= 1; index--) 7516 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 7517 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7518 7519 /* free the irq already requested */ 7520 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7521 7522msi_fail_out: 7523 /* Unconfigure MSI-X capability structure */ 7524 pci_disable_msix(phba->pcidev); 7525 return rc; 7526} 7527 7528/** 7529 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 7530 * @phba: pointer to lpfc hba data structure. 7531 * 7532 * This routine is invoked to release the MSI-X vectors and then disable the 7533 * MSI-X interrupt mode to device with SLI-4 interface spec. 7534 **/ 7535static void 7536lpfc_sli4_disable_msix(struct lpfc_hba *phba) 7537{ 7538 int index; 7539 7540 /* Free up MSI-X multi-message vectors */ 7541 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7542 7543 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++) 7544 free_irq(phba->sli4_hba.msix_entries[index].vector, 7545 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7546 7547 /* Disable MSI-X */ 7548 pci_disable_msix(phba->pcidev); 7549 7550 return; 7551} 7552 7553/** 7554 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 7555 * @phba: pointer to lpfc hba data structure. 7556 * 7557 * This routine is invoked to enable the MSI interrupt mode to device with 7558 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 7559 * to enable the MSI vector. The device driver is responsible for calling 7560 * the request_irq() to register MSI vector with a interrupt the handler, 7561 * which is done in this function. 7562 * 7563 * Return codes 7564 * 0 - successful 7565 * other values - error 7566 **/ 7567static int 7568lpfc_sli4_enable_msi(struct lpfc_hba *phba) 7569{ 7570 int rc, index; 7571 7572 rc = pci_enable_msi(phba->pcidev); 7573 if (!rc) 7574 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7575 "0487 PCI enable MSI mode success.\n"); 7576 else { 7577 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7578 "0488 PCI enable MSI mode failed (%d)\n", rc); 7579 return rc; 7580 } 7581 7582 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7583 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7584 if (rc) { 7585 pci_disable_msi(phba->pcidev); 7586 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7587 "0490 MSI request_irq failed (%d)\n", rc); 7588 return rc; 7589 } 7590 7591 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 7592 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7593 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7594 } 7595 7596 return 0; 7597} 7598 7599/** 7600 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 7601 * @phba: pointer to lpfc hba data structure. 7602 * 7603 * This routine is invoked to disable the MSI interrupt mode to device with 7604 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 7605 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7606 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7607 * its vector. 7608 **/ 7609static void 7610lpfc_sli4_disable_msi(struct lpfc_hba *phba) 7611{ 7612 free_irq(phba->pcidev->irq, phba); 7613 pci_disable_msi(phba->pcidev); 7614 return; 7615} 7616 7617/** 7618 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 7619 * @phba: pointer to lpfc hba data structure. 7620 * 7621 * This routine is invoked to enable device interrupt and associate driver's 7622 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 7623 * interface spec. Depends on the interrupt mode configured to the driver, 7624 * the driver will try to fallback from the configured interrupt mode to an 7625 * interrupt mode which is supported by the platform, kernel, and device in 7626 * the order of: 7627 * MSI-X -> MSI -> IRQ. 7628 * 7629 * Return codes 7630 * 0 - successful 7631 * other values - error 7632 **/ 7633static uint32_t 7634lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7635{ 7636 uint32_t intr_mode = LPFC_INTR_ERROR; 7637 int retval, index; 7638 7639 if (cfg_mode == 2) { 7640 /* Preparation before conf_msi mbox cmd */ 7641 retval = 0; 7642 if (!retval) { 7643 /* Now, try to enable MSI-X interrupt mode */ 7644 retval = lpfc_sli4_enable_msix(phba); 7645 if (!retval) { 7646 /* Indicate initialization to MSI-X mode */ 7647 phba->intr_type = MSIX; 7648 intr_mode = 2; 7649 } 7650 } 7651 } 7652 7653 /* Fallback to MSI if MSI-X initialization failed */ 7654 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7655 retval = lpfc_sli4_enable_msi(phba); 7656 if (!retval) { 7657 /* Indicate initialization to MSI mode */ 7658 phba->intr_type = MSI; 7659 intr_mode = 1; 7660 } 7661 } 7662 7663 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7664 if (phba->intr_type == NONE) { 7665 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7666 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7667 if (!retval) { 7668 /* Indicate initialization to INTx mode */ 7669 phba->intr_type = INTx; 7670 intr_mode = 0; 7671 for (index = 0; index < phba->cfg_fcp_eq_count; 7672 index++) { 7673 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7674 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7675 } 7676 } 7677 } 7678 return intr_mode; 7679} 7680 7681/** 7682 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 7683 * @phba: pointer to lpfc hba data structure. 7684 * 7685 * This routine is invoked to disable device interrupt and disassociate 7686 * the driver's interrupt handler(s) from interrupt vector(s) to device 7687 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 7688 * will release the interrupt vector(s) for the message signaled interrupt. 7689 **/ 7690static void 7691lpfc_sli4_disable_intr(struct lpfc_hba *phba) 7692{ 7693 /* Disable the currently initialized interrupt mode */ 7694 if (phba->intr_type == MSIX) 7695 lpfc_sli4_disable_msix(phba); 7696 else if (phba->intr_type == MSI) 7697 lpfc_sli4_disable_msi(phba); 7698 else if (phba->intr_type == INTx) 7699 free_irq(phba->pcidev->irq, phba); 7700 7701 /* Reset interrupt management states */ 7702 phba->intr_type = NONE; 7703 phba->sli.slistat.sli_intr = 0; 7704 7705 return; 7706} 7707 7708/** 7709 * lpfc_unset_hba - Unset SLI3 hba device initialization 7710 * @phba: pointer to lpfc hba data structure. 7711 * 7712 * This routine is invoked to unset the HBA device initialization steps to 7713 * a device with SLI-3 interface spec. 7714 **/ 7715static void 7716lpfc_unset_hba(struct lpfc_hba *phba) 7717{ 7718 struct lpfc_vport *vport = phba->pport; 7719 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7720 7721 spin_lock_irq(shost->host_lock); 7722 vport->load_flag |= FC_UNLOADING; 7723 spin_unlock_irq(shost->host_lock); 7724 7725 lpfc_stop_hba_timers(phba); 7726 7727 phba->pport->work_port_events = 0; 7728 7729 lpfc_sli_hba_down(phba); 7730 7731 lpfc_sli_brdrestart(phba); 7732 7733 lpfc_sli_disable_intr(phba); 7734 7735 return; 7736} 7737 7738/** 7739 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 7740 * @phba: pointer to lpfc hba data structure. 7741 * 7742 * This routine is invoked to unset the HBA device initialization steps to 7743 * a device with SLI-4 interface spec. 7744 **/ 7745static void 7746lpfc_sli4_unset_hba(struct lpfc_hba *phba) 7747{ 7748 struct lpfc_vport *vport = phba->pport; 7749 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7750 7751 spin_lock_irq(shost->host_lock); 7752 vport->load_flag |= FC_UNLOADING; 7753 spin_unlock_irq(shost->host_lock); 7754 7755 phba->pport->work_port_events = 0; 7756 7757 /* Stop the SLI4 device port */ 7758 lpfc_stop_port(phba); 7759 7760 lpfc_sli4_disable_intr(phba); 7761 7762 /* Reset SLI4 HBA FCoE function */ 7763 lpfc_pci_function_reset(phba); 7764 7765 return; 7766} 7767 7768/** 7769 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 7770 * @phba: Pointer to HBA context object. 7771 * 7772 * This function is called in the SLI4 code path to wait for completion 7773 * of device's XRIs exchange busy. It will check the XRI exchange busy 7774 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 7775 * that, it will check the XRI exchange busy on outstanding FCP and ELS 7776 * I/Os every 30 seconds, log error message, and wait forever. Only when 7777 * all XRI exchange busy complete, the driver unload shall proceed with 7778 * invoking the function reset ioctl mailbox command to the CNA and the 7779 * the rest of the driver unload resource release. 7780 **/ 7781static void 7782lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 7783{ 7784 int wait_time = 0; 7785 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 7786 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 7787 7788 while (!fcp_xri_cmpl || !els_xri_cmpl) { 7789 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 7790 if (!fcp_xri_cmpl) 7791 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7792 "2877 FCP XRI exchange busy " 7793 "wait time: %d seconds.\n", 7794 wait_time/1000); 7795 if (!els_xri_cmpl) 7796 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7797 "2878 ELS XRI exchange busy " 7798 "wait time: %d seconds.\n", 7799 wait_time/1000); 7800 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 7801 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 7802 } else { 7803 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 7804 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 7805 } 7806 fcp_xri_cmpl = 7807 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 7808 els_xri_cmpl = 7809 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 7810 } 7811} 7812 7813/** 7814 * lpfc_sli4_hba_unset - Unset the fcoe hba 7815 * @phba: Pointer to HBA context object. 7816 * 7817 * This function is called in the SLI4 code path to reset the HBA's FCoE 7818 * function. The caller is not required to hold any lock. This routine 7819 * issues PCI function reset mailbox command to reset the FCoE function. 7820 * At the end of the function, it calls lpfc_hba_down_post function to 7821 * free any pending commands. 7822 **/ 7823static void 7824lpfc_sli4_hba_unset(struct lpfc_hba *phba) 7825{ 7826 int wait_cnt = 0; 7827 LPFC_MBOXQ_t *mboxq; 7828 7829 lpfc_stop_hba_timers(phba); 7830 phba->sli4_hba.intr_enable = 0; 7831 7832 /* 7833 * Gracefully wait out the potential current outstanding asynchronous 7834 * mailbox command. 7835 */ 7836 7837 /* First, block any pending async mailbox command from posted */ 7838 spin_lock_irq(&phba->hbalock); 7839 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 7840 spin_unlock_irq(&phba->hbalock); 7841 /* Now, trying to wait it out if we can */ 7842 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7843 msleep(10); 7844 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 7845 break; 7846 } 7847 /* Forcefully release the outstanding mailbox command if timed out */ 7848 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7849 spin_lock_irq(&phba->hbalock); 7850 mboxq = phba->sli.mbox_active; 7851 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 7852 __lpfc_mbox_cmpl_put(phba, mboxq); 7853 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 7854 phba->sli.mbox_active = NULL; 7855 spin_unlock_irq(&phba->hbalock); 7856 } 7857 7858 /* Abort all iocbs associated with the hba */ 7859 lpfc_sli_hba_iocb_abort(phba); 7860 7861 /* Wait for completion of device XRI exchange busy */ 7862 lpfc_sli4_xri_exchange_busy_wait(phba); 7863 7864 /* Disable PCI subsystem interrupt */ 7865 lpfc_sli4_disable_intr(phba); 7866 7867 /* Stop kthread signal shall trigger work_done one more time */ 7868 kthread_stop(phba->worker_thread); 7869 7870 /* Reset SLI4 HBA FCoE function */ 7871 lpfc_pci_function_reset(phba); 7872 7873 /* Stop the SLI4 device port */ 7874 phba->pport->work_port_events = 0; 7875} 7876 7877 /** 7878 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 7879 * @phba: Pointer to HBA context object. 7880 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 7881 * 7882 * This function is called in the SLI4 code path to read the port's 7883 * sli4 capabilities. 7884 * 7885 * This function may be be called from any context that can block-wait 7886 * for the completion. The expectation is that this routine is called 7887 * typically from probe_one or from the online routine. 7888 **/ 7889int 7890lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 7891{ 7892 int rc; 7893 struct lpfc_mqe *mqe; 7894 struct lpfc_pc_sli4_params *sli4_params; 7895 uint32_t mbox_tmo; 7896 7897 rc = 0; 7898 mqe = &mboxq->u.mqe; 7899 7900 /* Read the port's SLI4 Parameters port capabilities */ 7901 lpfc_pc_sli4_params(mboxq); 7902 if (!phba->sli4_hba.intr_enable) 7903 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7904 else { 7905 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES); 7906 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7907 } 7908 7909 if (unlikely(rc)) 7910 return 1; 7911 7912 sli4_params = &phba->sli4_hba.pc_sli4_params; 7913 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 7914 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 7915 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 7916 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 7917 &mqe->un.sli4_params); 7918 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 7919 &mqe->un.sli4_params); 7920 sli4_params->proto_types = mqe->un.sli4_params.word3; 7921 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 7922 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 7923 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 7924 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 7925 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 7926 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 7927 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 7928 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 7929 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 7930 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 7931 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 7932 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 7933 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 7934 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 7935 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 7936 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 7937 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 7938 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 7939 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 7940 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 7941 7942 /* Make sure that sge_supp_len can be handled by the driver */ 7943 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 7944 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 7945 7946 return rc; 7947} 7948 7949/** 7950 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 7951 * @phba: Pointer to HBA context object. 7952 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 7953 * 7954 * This function is called in the SLI4 code path to read the port's 7955 * sli4 capabilities. 7956 * 7957 * This function may be be called from any context that can block-wait 7958 * for the completion. The expectation is that this routine is called 7959 * typically from probe_one or from the online routine. 7960 **/ 7961int 7962lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 7963{ 7964 int rc; 7965 struct lpfc_mqe *mqe = &mboxq->u.mqe; 7966 struct lpfc_pc_sli4_params *sli4_params; 7967 int length; 7968 struct lpfc_sli4_parameters *mbx_sli4_parameters; 7969 7970 /* Read the port's SLI4 Config Parameters */ 7971 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 7972 sizeof(struct lpfc_sli4_cfg_mhdr)); 7973 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7974 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 7975 length, LPFC_SLI4_MBX_EMBED); 7976 if (!phba->sli4_hba.intr_enable) 7977 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7978 else 7979 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, 7980 lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG)); 7981 if (unlikely(rc)) 7982 return rc; 7983 sli4_params = &phba->sli4_hba.pc_sli4_params; 7984 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 7985 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 7986 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 7987 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 7988 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 7989 mbx_sli4_parameters); 7990 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 7991 mbx_sli4_parameters); 7992 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 7993 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 7994 else 7995 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 7996 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 7997 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 7998 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 7999 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 8000 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 8001 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 8002 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 8003 mbx_sli4_parameters); 8004 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 8005 mbx_sli4_parameters); 8006 8007 /* Make sure that sge_supp_len can be handled by the driver */ 8008 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8009 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8010 8011 return 0; 8012} 8013 8014/** 8015 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 8016 * @pdev: pointer to PCI device 8017 * @pid: pointer to PCI device identifier 8018 * 8019 * This routine is to be called to attach a device with SLI-3 interface spec 8020 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8021 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8022 * information of the device and driver to see if the driver state that it can 8023 * support this kind of device. If the match is successful, the driver core 8024 * invokes this routine. If this routine determines it can claim the HBA, it 8025 * does all the initialization that it needs to do to handle the HBA properly. 8026 * 8027 * Return code 8028 * 0 - driver can claim the device 8029 * negative value - driver can not claim the device 8030 **/ 8031static int __devinit 8032lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 8033{ 8034 struct lpfc_hba *phba; 8035 struct lpfc_vport *vport = NULL; 8036 struct Scsi_Host *shost = NULL; 8037 int error; 8038 uint32_t cfg_mode, intr_mode; 8039 8040 /* Allocate memory for HBA structure */ 8041 phba = lpfc_hba_alloc(pdev); 8042 if (!phba) 8043 return -ENOMEM; 8044 8045 /* Perform generic PCI device enabling operation */ 8046 error = lpfc_enable_pci_dev(phba); 8047 if (error) { 8048 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8049 "1401 Failed to enable pci device.\n"); 8050 goto out_free_phba; 8051 } 8052 8053 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 8054 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 8055 if (error) 8056 goto out_disable_pci_dev; 8057 8058 /* Set up SLI-3 specific device PCI memory space */ 8059 error = lpfc_sli_pci_mem_setup(phba); 8060 if (error) { 8061 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8062 "1402 Failed to set up pci memory space.\n"); 8063 goto out_disable_pci_dev; 8064 } 8065 8066 /* Set up phase-1 common device driver resources */ 8067 error = lpfc_setup_driver_resource_phase1(phba); 8068 if (error) { 8069 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8070 "1403 Failed to set up driver resource.\n"); 8071 goto out_unset_pci_mem_s3; 8072 } 8073 8074 /* Set up SLI-3 specific device driver resources */ 8075 error = lpfc_sli_driver_resource_setup(phba); 8076 if (error) { 8077 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8078 "1404 Failed to set up driver resource.\n"); 8079 goto out_unset_pci_mem_s3; 8080 } 8081 8082 /* Initialize and populate the iocb list per host */ 8083 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 8084 if (error) { 8085 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8086 "1405 Failed to initialize iocb list.\n"); 8087 goto out_unset_driver_resource_s3; 8088 } 8089 8090 /* Set up common device driver resources */ 8091 error = lpfc_setup_driver_resource_phase2(phba); 8092 if (error) { 8093 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8094 "1406 Failed to set up driver resource.\n"); 8095 goto out_free_iocb_list; 8096 } 8097 8098 /* Create SCSI host to the physical port */ 8099 error = lpfc_create_shost(phba); 8100 if (error) { 8101 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8102 "1407 Failed to create scsi host.\n"); 8103 goto out_unset_driver_resource; 8104 } 8105 8106 /* Configure sysfs attributes */ 8107 vport = phba->pport; 8108 error = lpfc_alloc_sysfs_attr(vport); 8109 if (error) { 8110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8111 "1476 Failed to allocate sysfs attr\n"); 8112 goto out_destroy_shost; 8113 } 8114 8115 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8116 /* Now, trying to enable interrupt and bring up the device */ 8117 cfg_mode = phba->cfg_use_msi; 8118 while (true) { 8119 /* Put device to a known state before enabling interrupt */ 8120 lpfc_stop_port(phba); 8121 /* Configure and enable interrupt */ 8122 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 8123 if (intr_mode == LPFC_INTR_ERROR) { 8124 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8125 "0431 Failed to enable interrupt.\n"); 8126 error = -ENODEV; 8127 goto out_free_sysfs_attr; 8128 } 8129 /* SLI-3 HBA setup */ 8130 if (lpfc_sli_hba_setup(phba)) { 8131 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8132 "1477 Failed to set up hba\n"); 8133 error = -ENODEV; 8134 goto out_remove_device; 8135 } 8136 8137 /* Wait 50ms for the interrupts of previous mailbox commands */ 8138 msleep(50); 8139 /* Check active interrupts on message signaled interrupts */ 8140 if (intr_mode == 0 || 8141 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 8142 /* Log the current active interrupt mode */ 8143 phba->intr_mode = intr_mode; 8144 lpfc_log_intr_mode(phba, intr_mode); 8145 break; 8146 } else { 8147 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8148 "0447 Configure interrupt mode (%d) " 8149 "failed active interrupt test.\n", 8150 intr_mode); 8151 /* Disable the current interrupt mode */ 8152 lpfc_sli_disable_intr(phba); 8153 /* Try next level of interrupt mode */ 8154 cfg_mode = --intr_mode; 8155 } 8156 } 8157 8158 /* Perform post initialization setup */ 8159 lpfc_post_init_setup(phba); 8160 8161 /* Check if there are static vports to be created. */ 8162 lpfc_create_static_vport(phba); 8163 8164 return 0; 8165 8166out_remove_device: 8167 lpfc_unset_hba(phba); 8168out_free_sysfs_attr: 8169 lpfc_free_sysfs_attr(vport); 8170out_destroy_shost: 8171 lpfc_destroy_shost(phba); 8172out_unset_driver_resource: 8173 lpfc_unset_driver_resource_phase2(phba); 8174out_free_iocb_list: 8175 lpfc_free_iocb_list(phba); 8176out_unset_driver_resource_s3: 8177 lpfc_sli_driver_resource_unset(phba); 8178out_unset_pci_mem_s3: 8179 lpfc_sli_pci_mem_unset(phba); 8180out_disable_pci_dev: 8181 lpfc_disable_pci_dev(phba); 8182 if (shost) 8183 scsi_host_put(shost); 8184out_free_phba: 8185 lpfc_hba_free(phba); 8186 return error; 8187} 8188 8189/** 8190 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 8191 * @pdev: pointer to PCI device 8192 * 8193 * This routine is to be called to disattach a device with SLI-3 interface 8194 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8195 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8196 * device to be removed from the PCI subsystem properly. 8197 **/ 8198static void __devexit 8199lpfc_pci_remove_one_s3(struct pci_dev *pdev) 8200{ 8201 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8202 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8203 struct lpfc_vport **vports; 8204 struct lpfc_hba *phba = vport->phba; 8205 int i; 8206 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 8207 8208 spin_lock_irq(&phba->hbalock); 8209 vport->load_flag |= FC_UNLOADING; 8210 spin_unlock_irq(&phba->hbalock); 8211 8212 lpfc_free_sysfs_attr(vport); 8213 8214 /* Release all the vports against this physical port */ 8215 vports = lpfc_create_vport_work_array(phba); 8216 if (vports != NULL) 8217 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 8218 fc_vport_terminate(vports[i]->fc_vport); 8219 lpfc_destroy_vport_work_array(phba, vports); 8220 8221 /* Remove FC host and then SCSI host with the physical port */ 8222 fc_remove_host(shost); 8223 scsi_remove_host(shost); 8224 lpfc_cleanup(vport); 8225 8226 /* 8227 * Bring down the SLI Layer. This step disable all interrupts, 8228 * clears the rings, discards all mailbox commands, and resets 8229 * the HBA. 8230 */ 8231 8232 /* HBA interrupt will be disabled after this call */ 8233 lpfc_sli_hba_down(phba); 8234 /* Stop kthread signal shall trigger work_done one more time */ 8235 kthread_stop(phba->worker_thread); 8236 /* Final cleanup of txcmplq and reset the HBA */ 8237 lpfc_sli_brdrestart(phba); 8238 8239 lpfc_stop_hba_timers(phba); 8240 spin_lock_irq(&phba->hbalock); 8241 list_del_init(&vport->listentry); 8242 spin_unlock_irq(&phba->hbalock); 8243 8244 lpfc_debugfs_terminate(vport); 8245 8246 /* Disable interrupt */ 8247 lpfc_sli_disable_intr(phba); 8248 8249 pci_set_drvdata(pdev, NULL); 8250 scsi_host_put(shost); 8251 8252 /* 8253 * Call scsi_free before mem_free since scsi bufs are released to their 8254 * corresponding pools here. 8255 */ 8256 lpfc_scsi_free(phba); 8257 lpfc_mem_free_all(phba); 8258 8259 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 8260 phba->hbqslimp.virt, phba->hbqslimp.phys); 8261 8262 /* Free resources associated with SLI2 interface */ 8263 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 8264 phba->slim2p.virt, phba->slim2p.phys); 8265 8266 /* unmap adapter SLIM and Control Registers */ 8267 iounmap(phba->ctrl_regs_memmap_p); 8268 iounmap(phba->slim_memmap_p); 8269 8270 lpfc_hba_free(phba); 8271 8272 pci_release_selected_regions(pdev, bars); 8273 pci_disable_device(pdev); 8274} 8275 8276/** 8277 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 8278 * @pdev: pointer to PCI device 8279 * @msg: power management message 8280 * 8281 * This routine is to be called from the kernel's PCI subsystem to support 8282 * system Power Management (PM) to device with SLI-3 interface spec. When 8283 * PM invokes this method, it quiesces the device by stopping the driver's 8284 * worker thread for the device, turning off device's interrupt and DMA, 8285 * and bring the device offline. Note that as the driver implements the 8286 * minimum PM requirements to a power-aware driver's PM support for the 8287 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8288 * to the suspend() method call will be treated as SUSPEND and the driver will 8289 * fully reinitialize its device during resume() method call, the driver will 8290 * set device to PCI_D3hot state in PCI config space instead of setting it 8291 * according to the @msg provided by the PM. 8292 * 8293 * Return code 8294 * 0 - driver suspended the device 8295 * Error otherwise 8296 **/ 8297static int 8298lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 8299{ 8300 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8301 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8302 8303 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8304 "0473 PCI device Power Management suspend.\n"); 8305 8306 /* Bring down the device */ 8307 lpfc_offline_prep(phba); 8308 lpfc_offline(phba); 8309 kthread_stop(phba->worker_thread); 8310 8311 /* Disable interrupt from device */ 8312 lpfc_sli_disable_intr(phba); 8313 8314 /* Save device state to PCI config space */ 8315 pci_save_state(pdev); 8316 pci_set_power_state(pdev, PCI_D3hot); 8317 8318 return 0; 8319} 8320 8321/** 8322 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 8323 * @pdev: pointer to PCI device 8324 * 8325 * This routine is to be called from the kernel's PCI subsystem to support 8326 * system Power Management (PM) to device with SLI-3 interface spec. When PM 8327 * invokes this method, it restores the device's PCI config space state and 8328 * fully reinitializes the device and brings it online. Note that as the 8329 * driver implements the minimum PM requirements to a power-aware driver's 8330 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 8331 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 8332 * driver will fully reinitialize its device during resume() method call, 8333 * the device will be set to PCI_D0 directly in PCI config space before 8334 * restoring the state. 8335 * 8336 * Return code 8337 * 0 - driver suspended the device 8338 * Error otherwise 8339 **/ 8340static int 8341lpfc_pci_resume_one_s3(struct pci_dev *pdev) 8342{ 8343 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8344 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8345 uint32_t intr_mode; 8346 int error; 8347 8348 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8349 "0452 PCI device Power Management resume.\n"); 8350 8351 /* Restore device state from PCI config space */ 8352 pci_set_power_state(pdev, PCI_D0); 8353 pci_restore_state(pdev); 8354 8355 /* 8356 * As the new kernel behavior of pci_restore_state() API call clears 8357 * device saved_state flag, need to save the restored state again. 8358 */ 8359 pci_save_state(pdev); 8360 8361 if (pdev->is_busmaster) 8362 pci_set_master(pdev); 8363 8364 /* Startup the kernel thread for this host adapter. */ 8365 phba->worker_thread = kthread_run(lpfc_do_work, phba, 8366 "lpfc_worker_%d", phba->brd_no); 8367 if (IS_ERR(phba->worker_thread)) { 8368 error = PTR_ERR(phba->worker_thread); 8369 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8370 "0434 PM resume failed to start worker " 8371 "thread: error=x%x.\n", error); 8372 return error; 8373 } 8374 8375 /* Configure and enable interrupt */ 8376 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8377 if (intr_mode == LPFC_INTR_ERROR) { 8378 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8379 "0430 PM resume Failed to enable interrupt\n"); 8380 return -EIO; 8381 } else 8382 phba->intr_mode = intr_mode; 8383 8384 /* Restart HBA and bring it online */ 8385 lpfc_sli_brdrestart(phba); 8386 lpfc_online(phba); 8387 8388 /* Log the current active interrupt mode */ 8389 lpfc_log_intr_mode(phba, phba->intr_mode); 8390 8391 return 0; 8392} 8393 8394/** 8395 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 8396 * @phba: pointer to lpfc hba data structure. 8397 * 8398 * This routine is called to prepare the SLI3 device for PCI slot recover. It 8399 * aborts all the outstanding SCSI I/Os to the pci device. 8400 **/ 8401static void 8402lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 8403{ 8404 struct lpfc_sli *psli = &phba->sli; 8405 struct lpfc_sli_ring *pring; 8406 8407 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8408 "2723 PCI channel I/O abort preparing for recovery\n"); 8409 8410 /* 8411 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 8412 * and let the SCSI mid-layer to retry them to recover. 8413 */ 8414 pring = &psli->ring[psli->fcp_ring]; 8415 lpfc_sli_abort_iocb_ring(phba, pring); 8416} 8417 8418/** 8419 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 8420 * @phba: pointer to lpfc hba data structure. 8421 * 8422 * This routine is called to prepare the SLI3 device for PCI slot reset. It 8423 * disables the device interrupt and pci device, and aborts the internal FCP 8424 * pending I/Os. 8425 **/ 8426static void 8427lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 8428{ 8429 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8430 "2710 PCI channel disable preparing for reset\n"); 8431 8432 /* Block any management I/Os to the device */ 8433 lpfc_block_mgmt_io(phba); 8434 8435 /* Block all SCSI devices' I/Os on the host */ 8436 lpfc_scsi_dev_block(phba); 8437 8438 /* stop all timers */ 8439 lpfc_stop_hba_timers(phba); 8440 8441 /* Disable interrupt and pci device */ 8442 lpfc_sli_disable_intr(phba); 8443 pci_disable_device(phba->pcidev); 8444 8445 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 8446 lpfc_sli_flush_fcp_rings(phba); 8447} 8448 8449/** 8450 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 8451 * @phba: pointer to lpfc hba data structure. 8452 * 8453 * This routine is called to prepare the SLI3 device for PCI slot permanently 8454 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 8455 * pending I/Os. 8456 **/ 8457static void 8458lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 8459{ 8460 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8461 "2711 PCI channel permanent disable for failure\n"); 8462 /* Block all SCSI devices' I/Os on the host */ 8463 lpfc_scsi_dev_block(phba); 8464 8465 /* stop all timers */ 8466 lpfc_stop_hba_timers(phba); 8467 8468 /* Clean up all driver's outstanding SCSI I/Os */ 8469 lpfc_sli_flush_fcp_rings(phba); 8470} 8471 8472/** 8473 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 8474 * @pdev: pointer to PCI device. 8475 * @state: the current PCI connection state. 8476 * 8477 * This routine is called from the PCI subsystem for I/O error handling to 8478 * device with SLI-3 interface spec. This function is called by the PCI 8479 * subsystem after a PCI bus error affecting this device has been detected. 8480 * When this function is invoked, it will need to stop all the I/Os and 8481 * interrupt(s) to the device. Once that is done, it will return 8482 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 8483 * as desired. 8484 * 8485 * Return codes 8486 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 8487 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8488 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8489 **/ 8490static pci_ers_result_t 8491lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 8492{ 8493 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8494 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8495 8496 switch (state) { 8497 case pci_channel_io_normal: 8498 /* Non-fatal error, prepare for recovery */ 8499 lpfc_sli_prep_dev_for_recover(phba); 8500 return PCI_ERS_RESULT_CAN_RECOVER; 8501 case pci_channel_io_frozen: 8502 /* Fatal error, prepare for slot reset */ 8503 lpfc_sli_prep_dev_for_reset(phba); 8504 return PCI_ERS_RESULT_NEED_RESET; 8505 case pci_channel_io_perm_failure: 8506 /* Permanent failure, prepare for device down */ 8507 lpfc_sli_prep_dev_for_perm_failure(phba); 8508 return PCI_ERS_RESULT_DISCONNECT; 8509 default: 8510 /* Unknown state, prepare and request slot reset */ 8511 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8512 "0472 Unknown PCI error state: x%x\n", state); 8513 lpfc_sli_prep_dev_for_reset(phba); 8514 return PCI_ERS_RESULT_NEED_RESET; 8515 } 8516} 8517 8518/** 8519 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 8520 * @pdev: pointer to PCI device. 8521 * 8522 * This routine is called from the PCI subsystem for error handling to 8523 * device with SLI-3 interface spec. This is called after PCI bus has been 8524 * reset to restart the PCI card from scratch, as if from a cold-boot. 8525 * During the PCI subsystem error recovery, after driver returns 8526 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 8527 * recovery and then call this routine before calling the .resume method 8528 * to recover the device. This function will initialize the HBA device, 8529 * enable the interrupt, but it will just put the HBA to offline state 8530 * without passing any I/O traffic. 8531 * 8532 * Return codes 8533 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8534 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8535 */ 8536static pci_ers_result_t 8537lpfc_io_slot_reset_s3(struct pci_dev *pdev) 8538{ 8539 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8540 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8541 struct lpfc_sli *psli = &phba->sli; 8542 uint32_t intr_mode; 8543 8544 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 8545 if (pci_enable_device_mem(pdev)) { 8546 printk(KERN_ERR "lpfc: Cannot re-enable " 8547 "PCI device after reset.\n"); 8548 return PCI_ERS_RESULT_DISCONNECT; 8549 } 8550 8551 pci_restore_state(pdev); 8552 8553 /* 8554 * As the new kernel behavior of pci_restore_state() API call clears 8555 * device saved_state flag, need to save the restored state again. 8556 */ 8557 pci_save_state(pdev); 8558 8559 if (pdev->is_busmaster) 8560 pci_set_master(pdev); 8561 8562 spin_lock_irq(&phba->hbalock); 8563 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 8564 spin_unlock_irq(&phba->hbalock); 8565 8566 /* Configure and enable interrupt */ 8567 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8568 if (intr_mode == LPFC_INTR_ERROR) { 8569 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8570 "0427 Cannot re-enable interrupt after " 8571 "slot reset.\n"); 8572 return PCI_ERS_RESULT_DISCONNECT; 8573 } else 8574 phba->intr_mode = intr_mode; 8575 8576 /* Take device offline, it will perform cleanup */ 8577 lpfc_offline_prep(phba); 8578 lpfc_offline(phba); 8579 lpfc_sli_brdrestart(phba); 8580 8581 /* Log the current active interrupt mode */ 8582 lpfc_log_intr_mode(phba, phba->intr_mode); 8583 8584 return PCI_ERS_RESULT_RECOVERED; 8585} 8586 8587/** 8588 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 8589 * @pdev: pointer to PCI device 8590 * 8591 * This routine is called from the PCI subsystem for error handling to device 8592 * with SLI-3 interface spec. It is called when kernel error recovery tells 8593 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8594 * error recovery. After this call, traffic can start to flow from this device 8595 * again. 8596 */ 8597static void 8598lpfc_io_resume_s3(struct pci_dev *pdev) 8599{ 8600 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8601 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8602 8603 /* Bring device online, it will be no-op for non-fatal error resume */ 8604 lpfc_online(phba); 8605 8606 /* Clean up Advanced Error Reporting (AER) if needed */ 8607 if (phba->hba_flag & HBA_AER_ENABLED) 8608 pci_cleanup_aer_uncorrect_error_status(pdev); 8609} 8610 8611/** 8612 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 8613 * @phba: pointer to lpfc hba data structure. 8614 * 8615 * returns the number of ELS/CT IOCBs to reserve 8616 **/ 8617int 8618lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 8619{ 8620 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 8621 8622 if (phba->sli_rev == LPFC_SLI_REV4) { 8623 if (max_xri <= 100) 8624 return 10; 8625 else if (max_xri <= 256) 8626 return 25; 8627 else if (max_xri <= 512) 8628 return 50; 8629 else if (max_xri <= 1024) 8630 return 100; 8631 else 8632 return 150; 8633 } else 8634 return 0; 8635} 8636 8637/** 8638 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 8639 * @pdev: pointer to PCI device 8640 * @pid: pointer to PCI device identifier 8641 * 8642 * This routine is called from the kernel's PCI subsystem to device with 8643 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8644 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8645 * information of the device and driver to see if the driver state that it 8646 * can support this kind of device. If the match is successful, the driver 8647 * core invokes this routine. If this routine determines it can claim the HBA, 8648 * it does all the initialization that it needs to do to handle the HBA 8649 * properly. 8650 * 8651 * Return code 8652 * 0 - driver can claim the device 8653 * negative value - driver can not claim the device 8654 **/ 8655static int __devinit 8656lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 8657{ 8658 struct lpfc_hba *phba; 8659 struct lpfc_vport *vport = NULL; 8660 struct Scsi_Host *shost = NULL; 8661 int error; 8662 uint32_t cfg_mode, intr_mode; 8663 int mcnt; 8664 int adjusted_fcp_eq_count; 8665 int fcp_qidx; 8666 8667 /* Allocate memory for HBA structure */ 8668 phba = lpfc_hba_alloc(pdev); 8669 if (!phba) 8670 return -ENOMEM; 8671 8672 /* Perform generic PCI device enabling operation */ 8673 error = lpfc_enable_pci_dev(phba); 8674 if (error) { 8675 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8676 "1409 Failed to enable pci device.\n"); 8677 goto out_free_phba; 8678 } 8679 8680 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 8681 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 8682 if (error) 8683 goto out_disable_pci_dev; 8684 8685 /* Set up SLI-4 specific device PCI memory space */ 8686 error = lpfc_sli4_pci_mem_setup(phba); 8687 if (error) { 8688 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8689 "1410 Failed to set up pci memory space.\n"); 8690 goto out_disable_pci_dev; 8691 } 8692 8693 /* Set up phase-1 common device driver resources */ 8694 error = lpfc_setup_driver_resource_phase1(phba); 8695 if (error) { 8696 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8697 "1411 Failed to set up driver resource.\n"); 8698 goto out_unset_pci_mem_s4; 8699 } 8700 8701 /* Set up SLI-4 Specific device driver resources */ 8702 error = lpfc_sli4_driver_resource_setup(phba); 8703 if (error) { 8704 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8705 "1412 Failed to set up driver resource.\n"); 8706 goto out_unset_pci_mem_s4; 8707 } 8708 8709 /* Initialize and populate the iocb list per host */ 8710 8711 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8712 "2821 initialize iocb list %d.\n", 8713 phba->cfg_iocb_cnt*1024); 8714 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 8715 8716 if (error) { 8717 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8718 "1413 Failed to initialize iocb list.\n"); 8719 goto out_unset_driver_resource_s4; 8720 } 8721 8722 INIT_LIST_HEAD(&phba->active_rrq_list); 8723 8724 /* Set up common device driver resources */ 8725 error = lpfc_setup_driver_resource_phase2(phba); 8726 if (error) { 8727 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8728 "1414 Failed to set up driver resource.\n"); 8729 goto out_free_iocb_list; 8730 } 8731 8732 /* Create SCSI host to the physical port */ 8733 error = lpfc_create_shost(phba); 8734 if (error) { 8735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8736 "1415 Failed to create scsi host.\n"); 8737 goto out_unset_driver_resource; 8738 } 8739 8740 /* Configure sysfs attributes */ 8741 vport = phba->pport; 8742 error = lpfc_alloc_sysfs_attr(vport); 8743 if (error) { 8744 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8745 "1416 Failed to allocate sysfs attr\n"); 8746 goto out_destroy_shost; 8747 } 8748 8749 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8750 /* Now, trying to enable interrupt and bring up the device */ 8751 cfg_mode = phba->cfg_use_msi; 8752 while (true) { 8753 /* Put device to a known state before enabling interrupt */ 8754 lpfc_stop_port(phba); 8755 /* Configure and enable interrupt */ 8756 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 8757 if (intr_mode == LPFC_INTR_ERROR) { 8758 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8759 "0426 Failed to enable interrupt.\n"); 8760 error = -ENODEV; 8761 goto out_free_sysfs_attr; 8762 } 8763 /* Default to single EQ for non-MSI-X */ 8764 if (phba->intr_type != MSIX) 8765 adjusted_fcp_eq_count = 0; 8766 else if (phba->sli4_hba.msix_vec_nr < 8767 phba->cfg_fcp_eq_count + 1) 8768 adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1; 8769 else 8770 adjusted_fcp_eq_count = phba->cfg_fcp_eq_count; 8771 /* Free unused EQs */ 8772 for (fcp_qidx = adjusted_fcp_eq_count; 8773 fcp_qidx < phba->cfg_fcp_eq_count; 8774 fcp_qidx++) { 8775 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 8776 /* do not delete the first fcp_cq */ 8777 if (fcp_qidx) 8778 lpfc_sli4_queue_free( 8779 phba->sli4_hba.fcp_cq[fcp_qidx]); 8780 } 8781 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count; 8782 /* Set up SLI-4 HBA */ 8783 if (lpfc_sli4_hba_setup(phba)) { 8784 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8785 "1421 Failed to set up hba\n"); 8786 error = -ENODEV; 8787 goto out_disable_intr; 8788 } 8789 8790 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 8791 if (intr_mode != 0) 8792 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 8793 LPFC_ACT_INTR_CNT); 8794 8795 /* Check active interrupts received only for MSI/MSI-X */ 8796 if (intr_mode == 0 || 8797 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 8798 /* Log the current active interrupt mode */ 8799 phba->intr_mode = intr_mode; 8800 lpfc_log_intr_mode(phba, intr_mode); 8801 break; 8802 } 8803 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8804 "0451 Configure interrupt mode (%d) " 8805 "failed active interrupt test.\n", 8806 intr_mode); 8807 /* Unset the previous SLI-4 HBA setup. */ 8808 /* 8809 * TODO: Is this operation compatible with IF TYPE 2 8810 * devices? All port state is deleted and cleared. 8811 */ 8812 lpfc_sli4_unset_hba(phba); 8813 /* Try next level of interrupt mode */ 8814 cfg_mode = --intr_mode; 8815 } 8816 8817 /* Perform post initialization setup */ 8818 lpfc_post_init_setup(phba); 8819 8820 /* Check if there are static vports to be created. */ 8821 lpfc_create_static_vport(phba); 8822 8823 return 0; 8824 8825out_disable_intr: 8826 lpfc_sli4_disable_intr(phba); 8827out_free_sysfs_attr: 8828 lpfc_free_sysfs_attr(vport); 8829out_destroy_shost: 8830 lpfc_destroy_shost(phba); 8831out_unset_driver_resource: 8832 lpfc_unset_driver_resource_phase2(phba); 8833out_free_iocb_list: 8834 lpfc_free_iocb_list(phba); 8835out_unset_driver_resource_s4: 8836 lpfc_sli4_driver_resource_unset(phba); 8837out_unset_pci_mem_s4: 8838 lpfc_sli4_pci_mem_unset(phba); 8839out_disable_pci_dev: 8840 lpfc_disable_pci_dev(phba); 8841 if (shost) 8842 scsi_host_put(shost); 8843out_free_phba: 8844 lpfc_hba_free(phba); 8845 return error; 8846} 8847 8848/** 8849 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 8850 * @pdev: pointer to PCI device 8851 * 8852 * This routine is called from the kernel's PCI subsystem to device with 8853 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8854 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8855 * device to be removed from the PCI subsystem properly. 8856 **/ 8857static void __devexit 8858lpfc_pci_remove_one_s4(struct pci_dev *pdev) 8859{ 8860 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8861 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8862 struct lpfc_vport **vports; 8863 struct lpfc_hba *phba = vport->phba; 8864 int i; 8865 8866 /* Mark the device unloading flag */ 8867 spin_lock_irq(&phba->hbalock); 8868 vport->load_flag |= FC_UNLOADING; 8869 spin_unlock_irq(&phba->hbalock); 8870 8871 /* Free the HBA sysfs attributes */ 8872 lpfc_free_sysfs_attr(vport); 8873 8874 /* Release all the vports against this physical port */ 8875 vports = lpfc_create_vport_work_array(phba); 8876 if (vports != NULL) 8877 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 8878 fc_vport_terminate(vports[i]->fc_vport); 8879 lpfc_destroy_vport_work_array(phba, vports); 8880 8881 /* Remove FC host and then SCSI host with the physical port */ 8882 fc_remove_host(shost); 8883 scsi_remove_host(shost); 8884 8885 /* Perform cleanup on the physical port */ 8886 lpfc_cleanup(vport); 8887 8888 /* 8889 * Bring down the SLI Layer. This step disables all interrupts, 8890 * clears the rings, discards all mailbox commands, and resets 8891 * the HBA FCoE function. 8892 */ 8893 lpfc_debugfs_terminate(vport); 8894 lpfc_sli4_hba_unset(phba); 8895 8896 spin_lock_irq(&phba->hbalock); 8897 list_del_init(&vport->listentry); 8898 spin_unlock_irq(&phba->hbalock); 8899 8900 /* Perform scsi free before driver resource_unset since scsi 8901 * buffers are released to their corresponding pools here. 8902 */ 8903 lpfc_scsi_free(phba); 8904 lpfc_sli4_driver_resource_unset(phba); 8905 8906 /* Unmap adapter Control and Doorbell registers */ 8907 lpfc_sli4_pci_mem_unset(phba); 8908 8909 /* Release PCI resources and disable device's PCI function */ 8910 scsi_host_put(shost); 8911 lpfc_disable_pci_dev(phba); 8912 8913 /* Finally, free the driver's device data structure */ 8914 lpfc_hba_free(phba); 8915 8916 return; 8917} 8918 8919/** 8920 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 8921 * @pdev: pointer to PCI device 8922 * @msg: power management message 8923 * 8924 * This routine is called from the kernel's PCI subsystem to support system 8925 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 8926 * this method, it quiesces the device by stopping the driver's worker 8927 * thread for the device, turning off device's interrupt and DMA, and bring 8928 * the device offline. Note that as the driver implements the minimum PM 8929 * requirements to a power-aware driver's PM support for suspend/resume -- all 8930 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 8931 * method call will be treated as SUSPEND and the driver will fully 8932 * reinitialize its device during resume() method call, the driver will set 8933 * device to PCI_D3hot state in PCI config space instead of setting it 8934 * according to the @msg provided by the PM. 8935 * 8936 * Return code 8937 * 0 - driver suspended the device 8938 * Error otherwise 8939 **/ 8940static int 8941lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 8942{ 8943 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8944 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8945 8946 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8947 "2843 PCI device Power Management suspend.\n"); 8948 8949 /* Bring down the device */ 8950 lpfc_offline_prep(phba); 8951 lpfc_offline(phba); 8952 kthread_stop(phba->worker_thread); 8953 8954 /* Disable interrupt from device */ 8955 lpfc_sli4_disable_intr(phba); 8956 8957 /* Save device state to PCI config space */ 8958 pci_save_state(pdev); 8959 pci_set_power_state(pdev, PCI_D3hot); 8960 8961 return 0; 8962} 8963 8964/** 8965 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 8966 * @pdev: pointer to PCI device 8967 * 8968 * This routine is called from the kernel's PCI subsystem to support system 8969 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 8970 * this method, it restores the device's PCI config space state and fully 8971 * reinitializes the device and brings it online. Note that as the driver 8972 * implements the minimum PM requirements to a power-aware driver's PM for 8973 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8974 * to the suspend() method call will be treated as SUSPEND and the driver 8975 * will fully reinitialize its device during resume() method call, the device 8976 * will be set to PCI_D0 directly in PCI config space before restoring the 8977 * state. 8978 * 8979 * Return code 8980 * 0 - driver suspended the device 8981 * Error otherwise 8982 **/ 8983static int 8984lpfc_pci_resume_one_s4(struct pci_dev *pdev) 8985{ 8986 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8987 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8988 uint32_t intr_mode; 8989 int error; 8990 8991 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8992 "0292 PCI device Power Management resume.\n"); 8993 8994 /* Restore device state from PCI config space */ 8995 pci_set_power_state(pdev, PCI_D0); 8996 pci_restore_state(pdev); 8997 8998 /* 8999 * As the new kernel behavior of pci_restore_state() API call clears 9000 * device saved_state flag, need to save the restored state again. 9001 */ 9002 pci_save_state(pdev); 9003 9004 if (pdev->is_busmaster) 9005 pci_set_master(pdev); 9006 9007 /* Startup the kernel thread for this host adapter. */ 9008 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9009 "lpfc_worker_%d", phba->brd_no); 9010 if (IS_ERR(phba->worker_thread)) { 9011 error = PTR_ERR(phba->worker_thread); 9012 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9013 "0293 PM resume failed to start worker " 9014 "thread: error=x%x.\n", error); 9015 return error; 9016 } 9017 9018 /* Configure and enable interrupt */ 9019 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9020 if (intr_mode == LPFC_INTR_ERROR) { 9021 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9022 "0294 PM resume Failed to enable interrupt\n"); 9023 return -EIO; 9024 } else 9025 phba->intr_mode = intr_mode; 9026 9027 /* Restart HBA and bring it online */ 9028 lpfc_sli_brdrestart(phba); 9029 lpfc_online(phba); 9030 9031 /* Log the current active interrupt mode */ 9032 lpfc_log_intr_mode(phba, phba->intr_mode); 9033 9034 return 0; 9035} 9036 9037/** 9038 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 9039 * @phba: pointer to lpfc hba data structure. 9040 * 9041 * This routine is called to prepare the SLI4 device for PCI slot recover. It 9042 * aborts all the outstanding SCSI I/Os to the pci device. 9043 **/ 9044static void 9045lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 9046{ 9047 struct lpfc_sli *psli = &phba->sli; 9048 struct lpfc_sli_ring *pring; 9049 9050 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9051 "2828 PCI channel I/O abort preparing for recovery\n"); 9052 /* 9053 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9054 * and let the SCSI mid-layer to retry them to recover. 9055 */ 9056 pring = &psli->ring[psli->fcp_ring]; 9057 lpfc_sli_abort_iocb_ring(phba, pring); 9058} 9059 9060/** 9061 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 9062 * @phba: pointer to lpfc hba data structure. 9063 * 9064 * This routine is called to prepare the SLI4 device for PCI slot reset. It 9065 * disables the device interrupt and pci device, and aborts the internal FCP 9066 * pending I/Os. 9067 **/ 9068static void 9069lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 9070{ 9071 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9072 "2826 PCI channel disable preparing for reset\n"); 9073 9074 /* Block any management I/Os to the device */ 9075 lpfc_block_mgmt_io(phba); 9076 9077 /* Block all SCSI devices' I/Os on the host */ 9078 lpfc_scsi_dev_block(phba); 9079 9080 /* stop all timers */ 9081 lpfc_stop_hba_timers(phba); 9082 9083 /* Disable interrupt and pci device */ 9084 lpfc_sli4_disable_intr(phba); 9085 pci_disable_device(phba->pcidev); 9086 9087 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9088 lpfc_sli_flush_fcp_rings(phba); 9089} 9090 9091/** 9092 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 9093 * @phba: pointer to lpfc hba data structure. 9094 * 9095 * This routine is called to prepare the SLI4 device for PCI slot permanently 9096 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9097 * pending I/Os. 9098 **/ 9099static void 9100lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9101{ 9102 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9103 "2827 PCI channel permanent disable for failure\n"); 9104 9105 /* Block all SCSI devices' I/Os on the host */ 9106 lpfc_scsi_dev_block(phba); 9107 9108 /* stop all timers */ 9109 lpfc_stop_hba_timers(phba); 9110 9111 /* Clean up all driver's outstanding SCSI I/Os */ 9112 lpfc_sli_flush_fcp_rings(phba); 9113} 9114 9115/** 9116 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 9117 * @pdev: pointer to PCI device. 9118 * @state: the current PCI connection state. 9119 * 9120 * This routine is called from the PCI subsystem for error handling to device 9121 * with SLI-4 interface spec. This function is called by the PCI subsystem 9122 * after a PCI bus error affecting this device has been detected. When this 9123 * function is invoked, it will need to stop all the I/Os and interrupt(s) 9124 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 9125 * for the PCI subsystem to perform proper recovery as desired. 9126 * 9127 * Return codes 9128 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9129 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9130 **/ 9131static pci_ers_result_t 9132lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 9133{ 9134 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9135 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9136 9137 switch (state) { 9138 case pci_channel_io_normal: 9139 /* Non-fatal error, prepare for recovery */ 9140 lpfc_sli4_prep_dev_for_recover(phba); 9141 return PCI_ERS_RESULT_CAN_RECOVER; 9142 case pci_channel_io_frozen: 9143 /* Fatal error, prepare for slot reset */ 9144 lpfc_sli4_prep_dev_for_reset(phba); 9145 return PCI_ERS_RESULT_NEED_RESET; 9146 case pci_channel_io_perm_failure: 9147 /* Permanent failure, prepare for device down */ 9148 lpfc_sli4_prep_dev_for_perm_failure(phba); 9149 return PCI_ERS_RESULT_DISCONNECT; 9150 default: 9151 /* Unknown state, prepare and request slot reset */ 9152 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9153 "2825 Unknown PCI error state: x%x\n", state); 9154 lpfc_sli4_prep_dev_for_reset(phba); 9155 return PCI_ERS_RESULT_NEED_RESET; 9156 } 9157} 9158 9159/** 9160 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 9161 * @pdev: pointer to PCI device. 9162 * 9163 * This routine is called from the PCI subsystem for error handling to device 9164 * with SLI-4 interface spec. It is called after PCI bus has been reset to 9165 * restart the PCI card from scratch, as if from a cold-boot. During the 9166 * PCI subsystem error recovery, after the driver returns 9167 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 9168 * recovery and then call this routine before calling the .resume method to 9169 * recover the device. This function will initialize the HBA device, enable 9170 * the interrupt, but it will just put the HBA to offline state without 9171 * passing any I/O traffic. 9172 * 9173 * Return codes 9174 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9175 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9176 */ 9177static pci_ers_result_t 9178lpfc_io_slot_reset_s4(struct pci_dev *pdev) 9179{ 9180 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9181 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9182 struct lpfc_sli *psli = &phba->sli; 9183 uint32_t intr_mode; 9184 9185 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9186 if (pci_enable_device_mem(pdev)) { 9187 printk(KERN_ERR "lpfc: Cannot re-enable " 9188 "PCI device after reset.\n"); 9189 return PCI_ERS_RESULT_DISCONNECT; 9190 } 9191 9192 pci_restore_state(pdev); 9193 if (pdev->is_busmaster) 9194 pci_set_master(pdev); 9195 9196 spin_lock_irq(&phba->hbalock); 9197 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 9198 spin_unlock_irq(&phba->hbalock); 9199 9200 /* Configure and enable interrupt */ 9201 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9202 if (intr_mode == LPFC_INTR_ERROR) { 9203 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9204 "2824 Cannot re-enable interrupt after " 9205 "slot reset.\n"); 9206 return PCI_ERS_RESULT_DISCONNECT; 9207 } else 9208 phba->intr_mode = intr_mode; 9209 9210 /* Log the current active interrupt mode */ 9211 lpfc_log_intr_mode(phba, phba->intr_mode); 9212 9213 return PCI_ERS_RESULT_RECOVERED; 9214} 9215 9216/** 9217 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 9218 * @pdev: pointer to PCI device 9219 * 9220 * This routine is called from the PCI subsystem for error handling to device 9221 * with SLI-4 interface spec. It is called when kernel error recovery tells 9222 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 9223 * error recovery. After this call, traffic can start to flow from this device 9224 * again. 9225 **/ 9226static void 9227lpfc_io_resume_s4(struct pci_dev *pdev) 9228{ 9229 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9230 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9231 9232 /* 9233 * In case of slot reset, as function reset is performed through 9234 * mailbox command which needs DMA to be enabled, this operation 9235 * has to be moved to the io resume phase. Taking device offline 9236 * will perform the necessary cleanup. 9237 */ 9238 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 9239 /* Perform device reset */ 9240 lpfc_offline_prep(phba); 9241 lpfc_offline(phba); 9242 lpfc_sli_brdrestart(phba); 9243 /* Bring the device back online */ 9244 lpfc_online(phba); 9245 } 9246 9247 /* Clean up Advanced Error Reporting (AER) if needed */ 9248 if (phba->hba_flag & HBA_AER_ENABLED) 9249 pci_cleanup_aer_uncorrect_error_status(pdev); 9250} 9251 9252/** 9253 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 9254 * @pdev: pointer to PCI device 9255 * @pid: pointer to PCI device identifier 9256 * 9257 * This routine is to be registered to the kernel's PCI subsystem. When an 9258 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 9259 * at PCI device-specific information of the device and driver to see if the 9260 * driver state that it can support this kind of device. If the match is 9261 * successful, the driver core invokes this routine. This routine dispatches 9262 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 9263 * do all the initialization that it needs to do to handle the HBA device 9264 * properly. 9265 * 9266 * Return code 9267 * 0 - driver can claim the device 9268 * negative value - driver can not claim the device 9269 **/ 9270static int __devinit 9271lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 9272{ 9273 int rc; 9274 struct lpfc_sli_intf intf; 9275 9276 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 9277 return -ENODEV; 9278 9279 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 9280 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 9281 rc = lpfc_pci_probe_one_s4(pdev, pid); 9282 else 9283 rc = lpfc_pci_probe_one_s3(pdev, pid); 9284 9285 return rc; 9286} 9287 9288/** 9289 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 9290 * @pdev: pointer to PCI device 9291 * 9292 * This routine is to be registered to the kernel's PCI subsystem. When an 9293 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 9294 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 9295 * remove routine, which will perform all the necessary cleanup for the 9296 * device to be removed from the PCI subsystem properly. 9297 **/ 9298static void __devexit 9299lpfc_pci_remove_one(struct pci_dev *pdev) 9300{ 9301 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9302 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9303 9304 switch (phba->pci_dev_grp) { 9305 case LPFC_PCI_DEV_LP: 9306 lpfc_pci_remove_one_s3(pdev); 9307 break; 9308 case LPFC_PCI_DEV_OC: 9309 lpfc_pci_remove_one_s4(pdev); 9310 break; 9311 default: 9312 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9313 "1424 Invalid PCI device group: 0x%x\n", 9314 phba->pci_dev_grp); 9315 break; 9316 } 9317 return; 9318} 9319 9320/** 9321 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 9322 * @pdev: pointer to PCI device 9323 * @msg: power management message 9324 * 9325 * This routine is to be registered to the kernel's PCI subsystem to support 9326 * system Power Management (PM). When PM invokes this method, it dispatches 9327 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 9328 * suspend the device. 9329 * 9330 * Return code 9331 * 0 - driver suspended the device 9332 * Error otherwise 9333 **/ 9334static int 9335lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 9336{ 9337 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9338 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9339 int rc = -ENODEV; 9340 9341 switch (phba->pci_dev_grp) { 9342 case LPFC_PCI_DEV_LP: 9343 rc = lpfc_pci_suspend_one_s3(pdev, msg); 9344 break; 9345 case LPFC_PCI_DEV_OC: 9346 rc = lpfc_pci_suspend_one_s4(pdev, msg); 9347 break; 9348 default: 9349 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9350 "1425 Invalid PCI device group: 0x%x\n", 9351 phba->pci_dev_grp); 9352 break; 9353 } 9354 return rc; 9355} 9356 9357/** 9358 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 9359 * @pdev: pointer to PCI device 9360 * 9361 * This routine is to be registered to the kernel's PCI subsystem to support 9362 * system Power Management (PM). When PM invokes this method, it dispatches 9363 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 9364 * resume the device. 9365 * 9366 * Return code 9367 * 0 - driver suspended the device 9368 * Error otherwise 9369 **/ 9370static int 9371lpfc_pci_resume_one(struct pci_dev *pdev) 9372{ 9373 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9374 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9375 int rc = -ENODEV; 9376 9377 switch (phba->pci_dev_grp) { 9378 case LPFC_PCI_DEV_LP: 9379 rc = lpfc_pci_resume_one_s3(pdev); 9380 break; 9381 case LPFC_PCI_DEV_OC: 9382 rc = lpfc_pci_resume_one_s4(pdev); 9383 break; 9384 default: 9385 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9386 "1426 Invalid PCI device group: 0x%x\n", 9387 phba->pci_dev_grp); 9388 break; 9389 } 9390 return rc; 9391} 9392 9393/** 9394 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 9395 * @pdev: pointer to PCI device. 9396 * @state: the current PCI connection state. 9397 * 9398 * This routine is registered to the PCI subsystem for error handling. This 9399 * function is called by the PCI subsystem after a PCI bus error affecting 9400 * this device has been detected. When this routine is invoked, it dispatches 9401 * the action to the proper SLI-3 or SLI-4 device error detected handling 9402 * routine, which will perform the proper error detected operation. 9403 * 9404 * Return codes 9405 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9406 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9407 **/ 9408static pci_ers_result_t 9409lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 9410{ 9411 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9412 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9413 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 9414 9415 switch (phba->pci_dev_grp) { 9416 case LPFC_PCI_DEV_LP: 9417 rc = lpfc_io_error_detected_s3(pdev, state); 9418 break; 9419 case LPFC_PCI_DEV_OC: 9420 rc = lpfc_io_error_detected_s4(pdev, state); 9421 break; 9422 default: 9423 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9424 "1427 Invalid PCI device group: 0x%x\n", 9425 phba->pci_dev_grp); 9426 break; 9427 } 9428 return rc; 9429} 9430 9431/** 9432 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 9433 * @pdev: pointer to PCI device. 9434 * 9435 * This routine is registered to the PCI subsystem for error handling. This 9436 * function is called after PCI bus has been reset to restart the PCI card 9437 * from scratch, as if from a cold-boot. When this routine is invoked, it 9438 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 9439 * routine, which will perform the proper device reset. 9440 * 9441 * Return codes 9442 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9443 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9444 **/ 9445static pci_ers_result_t 9446lpfc_io_slot_reset(struct pci_dev *pdev) 9447{ 9448 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9449 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9450 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 9451 9452 switch (phba->pci_dev_grp) { 9453 case LPFC_PCI_DEV_LP: 9454 rc = lpfc_io_slot_reset_s3(pdev); 9455 break; 9456 case LPFC_PCI_DEV_OC: 9457 rc = lpfc_io_slot_reset_s4(pdev); 9458 break; 9459 default: 9460 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9461 "1428 Invalid PCI device group: 0x%x\n", 9462 phba->pci_dev_grp); 9463 break; 9464 } 9465 return rc; 9466} 9467 9468/** 9469 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 9470 * @pdev: pointer to PCI device 9471 * 9472 * This routine is registered to the PCI subsystem for error handling. It 9473 * is called when kernel error recovery tells the lpfc driver that it is 9474 * OK to resume normal PCI operation after PCI bus error recovery. When 9475 * this routine is invoked, it dispatches the action to the proper SLI-3 9476 * or SLI-4 device io_resume routine, which will resume the device operation. 9477 **/ 9478static void 9479lpfc_io_resume(struct pci_dev *pdev) 9480{ 9481 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9482 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9483 9484 switch (phba->pci_dev_grp) { 9485 case LPFC_PCI_DEV_LP: 9486 lpfc_io_resume_s3(pdev); 9487 break; 9488 case LPFC_PCI_DEV_OC: 9489 lpfc_io_resume_s4(pdev); 9490 break; 9491 default: 9492 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9493 "1429 Invalid PCI device group: 0x%x\n", 9494 phba->pci_dev_grp); 9495 break; 9496 } 9497 return; 9498} 9499 9500static struct pci_device_id lpfc_id_table[] = { 9501 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 9502 PCI_ANY_ID, PCI_ANY_ID, }, 9503 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 9504 PCI_ANY_ID, PCI_ANY_ID, }, 9505 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 9506 PCI_ANY_ID, PCI_ANY_ID, }, 9507 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 9508 PCI_ANY_ID, PCI_ANY_ID, }, 9509 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 9510 PCI_ANY_ID, PCI_ANY_ID, }, 9511 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 9512 PCI_ANY_ID, PCI_ANY_ID, }, 9513 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 9514 PCI_ANY_ID, PCI_ANY_ID, }, 9515 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 9516 PCI_ANY_ID, PCI_ANY_ID, }, 9517 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 9518 PCI_ANY_ID, PCI_ANY_ID, }, 9519 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 9520 PCI_ANY_ID, PCI_ANY_ID, }, 9521 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 9522 PCI_ANY_ID, PCI_ANY_ID, }, 9523 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 9524 PCI_ANY_ID, PCI_ANY_ID, }, 9525 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 9526 PCI_ANY_ID, PCI_ANY_ID, }, 9527 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 9528 PCI_ANY_ID, PCI_ANY_ID, }, 9529 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 9530 PCI_ANY_ID, PCI_ANY_ID, }, 9531 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 9532 PCI_ANY_ID, PCI_ANY_ID, }, 9533 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 9534 PCI_ANY_ID, PCI_ANY_ID, }, 9535 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 9536 PCI_ANY_ID, PCI_ANY_ID, }, 9537 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 9538 PCI_ANY_ID, PCI_ANY_ID, }, 9539 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 9540 PCI_ANY_ID, PCI_ANY_ID, }, 9541 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 9542 PCI_ANY_ID, PCI_ANY_ID, }, 9543 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 9544 PCI_ANY_ID, PCI_ANY_ID, }, 9545 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 9546 PCI_ANY_ID, PCI_ANY_ID, }, 9547 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 9548 PCI_ANY_ID, PCI_ANY_ID, }, 9549 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 9550 PCI_ANY_ID, PCI_ANY_ID, }, 9551 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 9552 PCI_ANY_ID, PCI_ANY_ID, }, 9553 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 9554 PCI_ANY_ID, PCI_ANY_ID, }, 9555 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 9556 PCI_ANY_ID, PCI_ANY_ID, }, 9557 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 9558 PCI_ANY_ID, PCI_ANY_ID, }, 9559 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 9560 PCI_ANY_ID, PCI_ANY_ID, }, 9561 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 9562 PCI_ANY_ID, PCI_ANY_ID, }, 9563 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 9564 PCI_ANY_ID, PCI_ANY_ID, }, 9565 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 9566 PCI_ANY_ID, PCI_ANY_ID, }, 9567 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 9568 PCI_ANY_ID, PCI_ANY_ID, }, 9569 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 9570 PCI_ANY_ID, PCI_ANY_ID, }, 9571 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 9572 PCI_ANY_ID, PCI_ANY_ID, }, 9573 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 9574 PCI_ANY_ID, PCI_ANY_ID, }, 9575 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 9576 PCI_ANY_ID, PCI_ANY_ID, }, 9577 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 9578 PCI_ANY_ID, PCI_ANY_ID, }, 9579 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 9580 PCI_ANY_ID, PCI_ANY_ID, }, 9581 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 9582 PCI_ANY_ID, PCI_ANY_ID, }, 9583 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, 9584 PCI_ANY_ID, PCI_ANY_ID, }, 9585 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, 9586 PCI_ANY_ID, PCI_ANY_ID, }, 9587 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF, 9588 PCI_ANY_ID, PCI_ANY_ID, }, 9589 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF, 9590 PCI_ANY_ID, PCI_ANY_ID, }, 9591 { 0 } 9592}; 9593 9594MODULE_DEVICE_TABLE(pci, lpfc_id_table); 9595 9596static struct pci_error_handlers lpfc_err_handler = { 9597 .error_detected = lpfc_io_error_detected, 9598 .slot_reset = lpfc_io_slot_reset, 9599 .resume = lpfc_io_resume, 9600}; 9601 9602static struct pci_driver lpfc_driver = { 9603 .name = LPFC_DRIVER_NAME, 9604 .id_table = lpfc_id_table, 9605 .probe = lpfc_pci_probe_one, 9606 .remove = __devexit_p(lpfc_pci_remove_one), 9607 .suspend = lpfc_pci_suspend_one, 9608 .resume = lpfc_pci_resume_one, 9609 .err_handler = &lpfc_err_handler, 9610}; 9611 9612/** 9613 * lpfc_init - lpfc module initialization routine 9614 * 9615 * This routine is to be invoked when the lpfc module is loaded into the 9616 * kernel. The special kernel macro module_init() is used to indicate the 9617 * role of this routine to the kernel as lpfc module entry point. 9618 * 9619 * Return codes 9620 * 0 - successful 9621 * -ENOMEM - FC attach transport failed 9622 * all others - failed 9623 */ 9624static int __init 9625lpfc_init(void) 9626{ 9627 int error = 0; 9628 9629 printk(LPFC_MODULE_DESC "\n"); 9630 printk(LPFC_COPYRIGHT "\n"); 9631 9632 if (lpfc_enable_npiv) { 9633 lpfc_transport_functions.vport_create = lpfc_vport_create; 9634 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 9635 } 9636 lpfc_transport_template = 9637 fc_attach_transport(&lpfc_transport_functions); 9638 if (lpfc_transport_template == NULL) 9639 return -ENOMEM; 9640 if (lpfc_enable_npiv) { 9641 lpfc_vport_transport_template = 9642 fc_attach_transport(&lpfc_vport_transport_functions); 9643 if (lpfc_vport_transport_template == NULL) { 9644 fc_release_transport(lpfc_transport_template); 9645 return -ENOMEM; 9646 } 9647 } 9648 error = pci_register_driver(&lpfc_driver); 9649 if (error) { 9650 fc_release_transport(lpfc_transport_template); 9651 if (lpfc_enable_npiv) 9652 fc_release_transport(lpfc_vport_transport_template); 9653 } 9654 9655 return error; 9656} 9657 9658/** 9659 * lpfc_exit - lpfc module removal routine 9660 * 9661 * This routine is invoked when the lpfc module is removed from the kernel. 9662 * The special kernel macro module_exit() is used to indicate the role of 9663 * this routine to the kernel as lpfc module exit point. 9664 */ 9665static void __exit 9666lpfc_exit(void) 9667{ 9668 pci_unregister_driver(&lpfc_driver); 9669 fc_release_transport(lpfc_transport_template); 9670 if (lpfc_enable_npiv) 9671 fc_release_transport(lpfc_vport_transport_template); 9672 if (_dump_buf_data) { 9673 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 9674 "_dump_buf_data at 0x%p\n", 9675 (1L << _dump_buf_data_order), _dump_buf_data); 9676 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 9677 } 9678 9679 if (_dump_buf_dif) { 9680 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 9681 "_dump_buf_dif at 0x%p\n", 9682 (1L << _dump_buf_dif_order), _dump_buf_dif); 9683 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 9684 } 9685} 9686 9687module_init(lpfc_init); 9688module_exit(lpfc_exit); 9689MODULE_LICENSE("GPL"); 9690MODULE_DESCRIPTION(LPFC_MODULE_DESC); 9691MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 9692MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 9693