lpfc_init.c revision 5248a7498e5f6f3d6d276080466946f82f0ea56a
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#include <linux/firmware.h> 34 35#include <scsi/scsi.h> 36#include <scsi/scsi_device.h> 37#include <scsi/scsi_host.h> 38#include <scsi/scsi_transport_fc.h> 39 40#include "lpfc_hw4.h" 41#include "lpfc_hw.h" 42#include "lpfc_sli.h" 43#include "lpfc_sli4.h" 44#include "lpfc_nl.h" 45#include "lpfc_disc.h" 46#include "lpfc_scsi.h" 47#include "lpfc.h" 48#include "lpfc_logmsg.h" 49#include "lpfc_crtn.h" 50#include "lpfc_vport.h" 51#include "lpfc_version.h" 52 53char *_dump_buf_data; 54unsigned long _dump_buf_data_order; 55char *_dump_buf_dif; 56unsigned long _dump_buf_dif_order; 57spinlock_t _dump_buf_lock; 58 59static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 60static int lpfc_post_rcv_buf(struct lpfc_hba *); 61static int lpfc_sli4_queue_create(struct lpfc_hba *); 62static void lpfc_sli4_queue_destroy(struct lpfc_hba *); 63static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 64static int lpfc_setup_endian_order(struct lpfc_hba *); 65static int lpfc_sli4_read_config(struct lpfc_hba *); 66static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 67static void lpfc_free_sgl_list(struct lpfc_hba *); 68static int lpfc_init_sgl_list(struct lpfc_hba *); 69static int lpfc_init_active_sgl_array(struct lpfc_hba *); 70static void lpfc_free_active_sgl(struct lpfc_hba *); 71static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 72static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 73static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 74static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 75static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 76 77static struct scsi_transport_template *lpfc_transport_template = NULL; 78static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 79static DEFINE_IDR(lpfc_hba_index); 80 81/** 82 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 83 * @phba: pointer to lpfc hba data structure. 84 * 85 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 86 * mailbox command. It retrieves the revision information from the HBA and 87 * collects the Vital Product Data (VPD) about the HBA for preparing the 88 * configuration of the HBA. 89 * 90 * Return codes: 91 * 0 - success. 92 * -ERESTART - requests the SLI layer to reset the HBA and try again. 93 * Any other value - indicates an error. 94 **/ 95int 96lpfc_config_port_prep(struct lpfc_hba *phba) 97{ 98 lpfc_vpd_t *vp = &phba->vpd; 99 int i = 0, rc; 100 LPFC_MBOXQ_t *pmb; 101 MAILBOX_t *mb; 102 char *lpfc_vpd_data = NULL; 103 uint16_t offset = 0; 104 static char licensed[56] = 105 "key unlock for use with gnu public licensed code only\0"; 106 static int init_key = 1; 107 108 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 109 if (!pmb) { 110 phba->link_state = LPFC_HBA_ERROR; 111 return -ENOMEM; 112 } 113 114 mb = &pmb->u.mb; 115 phba->link_state = LPFC_INIT_MBX_CMDS; 116 117 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 118 if (init_key) { 119 uint32_t *ptext = (uint32_t *) licensed; 120 121 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 122 *ptext = cpu_to_be32(*ptext); 123 init_key = 0; 124 } 125 126 lpfc_read_nv(phba, pmb); 127 memset((char*)mb->un.varRDnvp.rsvd3, 0, 128 sizeof (mb->un.varRDnvp.rsvd3)); 129 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 130 sizeof (licensed)); 131 132 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 133 134 if (rc != MBX_SUCCESS) { 135 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 136 "0324 Config Port initialization " 137 "error, mbxCmd x%x READ_NVPARM, " 138 "mbxStatus x%x\n", 139 mb->mbxCommand, mb->mbxStatus); 140 mempool_free(pmb, phba->mbox_mem_pool); 141 return -ERESTART; 142 } 143 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 144 sizeof(phba->wwnn)); 145 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 146 sizeof(phba->wwpn)); 147 } 148 149 phba->sli3_options = 0x0; 150 151 /* Setup and issue mailbox READ REV command */ 152 lpfc_read_rev(phba, pmb); 153 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 154 if (rc != MBX_SUCCESS) { 155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 156 "0439 Adapter failed to init, mbxCmd x%x " 157 "READ_REV, mbxStatus x%x\n", 158 mb->mbxCommand, mb->mbxStatus); 159 mempool_free( pmb, phba->mbox_mem_pool); 160 return -ERESTART; 161 } 162 163 164 /* 165 * The value of rr must be 1 since the driver set the cv field to 1. 166 * This setting requires the FW to set all revision fields. 167 */ 168 if (mb->un.varRdRev.rr == 0) { 169 vp->rev.rBit = 0; 170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 171 "0440 Adapter failed to init, READ_REV has " 172 "missing revision information.\n"); 173 mempool_free(pmb, phba->mbox_mem_pool); 174 return -ERESTART; 175 } 176 177 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 178 mempool_free(pmb, phba->mbox_mem_pool); 179 return -EINVAL; 180 } 181 182 /* Save information as VPD data */ 183 vp->rev.rBit = 1; 184 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 185 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 186 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 187 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 188 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 189 vp->rev.biuRev = mb->un.varRdRev.biuRev; 190 vp->rev.smRev = mb->un.varRdRev.smRev; 191 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 192 vp->rev.endecRev = mb->un.varRdRev.endecRev; 193 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 194 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 195 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 196 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 197 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 198 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 199 200 /* If the sli feature level is less then 9, we must 201 * tear down all RPIs and VPIs on link down if NPIV 202 * is enabled. 203 */ 204 if (vp->rev.feaLevelHigh < 9) 205 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 206 207 if (lpfc_is_LC_HBA(phba->pcidev->device)) 208 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 209 sizeof (phba->RandomData)); 210 211 /* Get adapter VPD information */ 212 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 213 if (!lpfc_vpd_data) 214 goto out_free_mbox; 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 phba->link_state = LPFC_HBA_ERROR; 606 if (rc != MBX_BUSY) 607 mempool_free(pmb, phba->mbox_mem_pool); 608 return -EIO; 609 } 610 } 611 /* MBOX buffer will be freed in mbox compl */ 612 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 613 if (!pmb) { 614 phba->link_state = LPFC_HBA_ERROR; 615 return -ENOMEM; 616 } 617 618 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 619 pmb->mbox_cmpl = lpfc_config_async_cmpl; 620 pmb->vport = phba->pport; 621 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 622 623 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 624 lpfc_printf_log(phba, 625 KERN_ERR, 626 LOG_INIT, 627 "0456 Adapter failed to issue " 628 "ASYNCEVT_ENABLE mbox status x%x\n", 629 rc); 630 mempool_free(pmb, phba->mbox_mem_pool); 631 } 632 633 /* Get Option rom version */ 634 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 635 if (!pmb) { 636 phba->link_state = LPFC_HBA_ERROR; 637 return -ENOMEM; 638 } 639 640 lpfc_dump_wakeup_param(phba, pmb); 641 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 642 pmb->vport = phba->pport; 643 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 644 645 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 646 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 647 "to get Option ROM version status x%x\n", rc); 648 mempool_free(pmb, phba->mbox_mem_pool); 649 } 650 651 return 0; 652} 653 654/** 655 * lpfc_hba_init_link - Initialize the FC link 656 * @phba: pointer to lpfc hba data structure. 657 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 658 * 659 * This routine will issue the INIT_LINK mailbox command call. 660 * It is available to other drivers through the lpfc_hba data 661 * structure for use as a delayed link up mechanism with the 662 * module parameter lpfc_suppress_link_up. 663 * 664 * Return code 665 * 0 - success 666 * Any other value - error 667 **/ 668int 669lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 670{ 671 struct lpfc_vport *vport = phba->pport; 672 LPFC_MBOXQ_t *pmb; 673 MAILBOX_t *mb; 674 int rc; 675 676 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 677 if (!pmb) { 678 phba->link_state = LPFC_HBA_ERROR; 679 return -ENOMEM; 680 } 681 mb = &pmb->u.mb; 682 pmb->vport = vport; 683 684 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed); 685 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 686 lpfc_set_loopback_flag(phba); 687 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 688 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 689 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 690 "0498 Adapter failed to init, mbxCmd x%x " 691 "INIT_LINK, mbxStatus x%x\n", 692 mb->mbxCommand, mb->mbxStatus); 693 if (phba->sli_rev <= LPFC_SLI_REV3) { 694 /* Clear all interrupt enable conditions */ 695 writel(0, phba->HCregaddr); 696 readl(phba->HCregaddr); /* flush */ 697 /* Clear all pending interrupts */ 698 writel(0xffffffff, phba->HAregaddr); 699 readl(phba->HAregaddr); /* flush */ 700 } 701 phba->link_state = LPFC_HBA_ERROR; 702 if (rc != MBX_BUSY || flag == MBX_POLL) 703 mempool_free(pmb, phba->mbox_mem_pool); 704 return -EIO; 705 } 706 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 707 if (flag == MBX_POLL) 708 mempool_free(pmb, phba->mbox_mem_pool); 709 710 return 0; 711} 712 713/** 714 * lpfc_hba_down_link - this routine downs the FC link 715 * @phba: pointer to lpfc hba data structure. 716 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 717 * 718 * This routine will issue the DOWN_LINK mailbox command call. 719 * It is available to other drivers through the lpfc_hba data 720 * structure for use to stop the link. 721 * 722 * Return code 723 * 0 - success 724 * Any other value - error 725 **/ 726int 727lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 728{ 729 LPFC_MBOXQ_t *pmb; 730 int rc; 731 732 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 733 if (!pmb) { 734 phba->link_state = LPFC_HBA_ERROR; 735 return -ENOMEM; 736 } 737 738 lpfc_printf_log(phba, 739 KERN_ERR, LOG_INIT, 740 "0491 Adapter Link is disabled.\n"); 741 lpfc_down_link(phba, pmb); 742 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 743 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 744 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 745 lpfc_printf_log(phba, 746 KERN_ERR, LOG_INIT, 747 "2522 Adapter failed to issue DOWN_LINK" 748 " mbox command rc 0x%x\n", rc); 749 750 mempool_free(pmb, phba->mbox_mem_pool); 751 return -EIO; 752 } 753 if (flag == MBX_POLL) 754 mempool_free(pmb, phba->mbox_mem_pool); 755 756 return 0; 757} 758 759/** 760 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 761 * @phba: pointer to lpfc HBA data structure. 762 * 763 * This routine will do LPFC uninitialization before the HBA is reset when 764 * bringing down the SLI Layer. 765 * 766 * Return codes 767 * 0 - success. 768 * Any other value - error. 769 **/ 770int 771lpfc_hba_down_prep(struct lpfc_hba *phba) 772{ 773 struct lpfc_vport **vports; 774 int i; 775 776 if (phba->sli_rev <= LPFC_SLI_REV3) { 777 /* Disable interrupts */ 778 writel(0, phba->HCregaddr); 779 readl(phba->HCregaddr); /* flush */ 780 } 781 782 if (phba->pport->load_flag & FC_UNLOADING) 783 lpfc_cleanup_discovery_resources(phba->pport); 784 else { 785 vports = lpfc_create_vport_work_array(phba); 786 if (vports != NULL) 787 for (i = 0; i <= phba->max_vports && 788 vports[i] != NULL; i++) 789 lpfc_cleanup_discovery_resources(vports[i]); 790 lpfc_destroy_vport_work_array(phba, vports); 791 } 792 return 0; 793} 794 795/** 796 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 797 * @phba: pointer to lpfc HBA data structure. 798 * 799 * This routine will do uninitialization after the HBA is reset when bring 800 * down the SLI Layer. 801 * 802 * Return codes 803 * 0 - success. 804 * Any other value - error. 805 **/ 806static int 807lpfc_hba_down_post_s3(struct lpfc_hba *phba) 808{ 809 struct lpfc_sli *psli = &phba->sli; 810 struct lpfc_sli_ring *pring; 811 struct lpfc_dmabuf *mp, *next_mp; 812 LIST_HEAD(completions); 813 int i; 814 815 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 816 lpfc_sli_hbqbuf_free_all(phba); 817 else { 818 /* Cleanup preposted buffers on the ELS ring */ 819 pring = &psli->ring[LPFC_ELS_RING]; 820 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 821 list_del(&mp->list); 822 pring->postbufq_cnt--; 823 lpfc_mbuf_free(phba, mp->virt, mp->phys); 824 kfree(mp); 825 } 826 } 827 828 spin_lock_irq(&phba->hbalock); 829 for (i = 0; i < psli->num_rings; i++) { 830 pring = &psli->ring[i]; 831 832 /* At this point in time the HBA is either reset or DOA. Either 833 * way, nothing should be on txcmplq as it will NEVER complete. 834 */ 835 list_splice_init(&pring->txcmplq, &completions); 836 pring->txcmplq_cnt = 0; 837 spin_unlock_irq(&phba->hbalock); 838 839 /* Cancel all the IOCBs from the completions list */ 840 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 841 IOERR_SLI_ABORTED); 842 843 lpfc_sli_abort_iocb_ring(phba, pring); 844 spin_lock_irq(&phba->hbalock); 845 } 846 spin_unlock_irq(&phba->hbalock); 847 848 return 0; 849} 850 851/** 852 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 853 * @phba: pointer to lpfc HBA data structure. 854 * 855 * This routine will do uninitialization after the HBA is reset when bring 856 * down the SLI Layer. 857 * 858 * Return codes 859 * 0 - success. 860 * Any other value - error. 861 **/ 862static int 863lpfc_hba_down_post_s4(struct lpfc_hba *phba) 864{ 865 struct lpfc_scsi_buf *psb, *psb_next; 866 LIST_HEAD(aborts); 867 int ret; 868 unsigned long iflag = 0; 869 struct lpfc_sglq *sglq_entry = NULL; 870 871 ret = lpfc_hba_down_post_s3(phba); 872 if (ret) 873 return ret; 874 /* At this point in time the HBA is either reset or DOA. Either 875 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 876 * on the lpfc_sgl_list so that it can either be freed if the 877 * driver is unloading or reposted if the driver is restarting 878 * the port. 879 */ 880 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 881 /* scsl_buf_list */ 882 /* abts_sgl_list_lock required because worker thread uses this 883 * list. 884 */ 885 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 886 list_for_each_entry(sglq_entry, 887 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 888 sglq_entry->state = SGL_FREED; 889 890 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 891 &phba->sli4_hba.lpfc_sgl_list); 892 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 893 /* abts_scsi_buf_list_lock required because worker thread uses this 894 * list. 895 */ 896 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 897 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 898 &aborts); 899 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 900 spin_unlock_irq(&phba->hbalock); 901 902 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 903 psb->pCmd = NULL; 904 psb->status = IOSTAT_SUCCESS; 905 } 906 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 907 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 908 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 909 return 0; 910} 911 912/** 913 * lpfc_hba_down_post - Wrapper func for hba down post routine 914 * @phba: pointer to lpfc HBA data structure. 915 * 916 * This routine wraps the actual SLI3 or SLI4 routine for performing 917 * uninitialization after the HBA is reset when bring down the SLI Layer. 918 * 919 * Return codes 920 * 0 - success. 921 * Any other value - error. 922 **/ 923int 924lpfc_hba_down_post(struct lpfc_hba *phba) 925{ 926 return (*phba->lpfc_hba_down_post)(phba); 927} 928 929/** 930 * lpfc_hb_timeout - The HBA-timer timeout handler 931 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 932 * 933 * This is the HBA-timer timeout handler registered to the lpfc driver. When 934 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 935 * work-port-events bitmap and the worker thread is notified. This timeout 936 * event will be used by the worker thread to invoke the actual timeout 937 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 938 * be performed in the timeout handler and the HBA timeout event bit shall 939 * be cleared by the worker thread after it has taken the event bitmap out. 940 **/ 941static void 942lpfc_hb_timeout(unsigned long ptr) 943{ 944 struct lpfc_hba *phba; 945 uint32_t tmo_posted; 946 unsigned long iflag; 947 948 phba = (struct lpfc_hba *)ptr; 949 950 /* Check for heart beat timeout conditions */ 951 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 952 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 953 if (!tmo_posted) 954 phba->pport->work_port_events |= WORKER_HB_TMO; 955 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 956 957 /* Tell the worker thread there is work to do */ 958 if (!tmo_posted) 959 lpfc_worker_wake_up(phba); 960 return; 961} 962 963/** 964 * lpfc_rrq_timeout - The RRQ-timer timeout handler 965 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 966 * 967 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 968 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 969 * work-port-events bitmap and the worker thread is notified. This timeout 970 * event will be used by the worker thread to invoke the actual timeout 971 * handler routine, lpfc_rrq_handler. Any periodical operations will 972 * be performed in the timeout handler and the RRQ timeout event bit shall 973 * be cleared by the worker thread after it has taken the event bitmap out. 974 **/ 975static void 976lpfc_rrq_timeout(unsigned long ptr) 977{ 978 struct lpfc_hba *phba; 979 unsigned long iflag; 980 981 phba = (struct lpfc_hba *)ptr; 982 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 983 phba->hba_flag |= HBA_RRQ_ACTIVE; 984 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 985 lpfc_worker_wake_up(phba); 986} 987 988/** 989 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 990 * @phba: pointer to lpfc hba data structure. 991 * @pmboxq: pointer to the driver internal queue element for mailbox command. 992 * 993 * This is the callback function to the lpfc heart-beat mailbox command. 994 * If configured, the lpfc driver issues the heart-beat mailbox command to 995 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 996 * heart-beat mailbox command is issued, the driver shall set up heart-beat 997 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 998 * heart-beat outstanding state. Once the mailbox command comes back and 999 * no error conditions detected, the heart-beat mailbox command timer is 1000 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1001 * state is cleared for the next heart-beat. If the timer expired with the 1002 * heart-beat outstanding state set, the driver will put the HBA offline. 1003 **/ 1004static void 1005lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1006{ 1007 unsigned long drvr_flag; 1008 1009 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1010 phba->hb_outstanding = 0; 1011 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1012 1013 /* Check and reset heart-beat timer is necessary */ 1014 mempool_free(pmboxq, phba->mbox_mem_pool); 1015 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1016 !(phba->link_state == LPFC_HBA_ERROR) && 1017 !(phba->pport->load_flag & FC_UNLOADING)) 1018 mod_timer(&phba->hb_tmofunc, 1019 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1020 return; 1021} 1022 1023/** 1024 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1025 * @phba: pointer to lpfc hba data structure. 1026 * 1027 * This is the actual HBA-timer timeout handler to be invoked by the worker 1028 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1029 * handler performs any periodic operations needed for the device. If such 1030 * periodic event has already been attended to either in the interrupt handler 1031 * or by processing slow-ring or fast-ring events within the HBA-timer 1032 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1033 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1034 * is configured and there is no heart-beat mailbox command outstanding, a 1035 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1036 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1037 * to offline. 1038 **/ 1039void 1040lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1041{ 1042 struct lpfc_vport **vports; 1043 LPFC_MBOXQ_t *pmboxq; 1044 struct lpfc_dmabuf *buf_ptr; 1045 int retval, i; 1046 struct lpfc_sli *psli = &phba->sli; 1047 LIST_HEAD(completions); 1048 1049 vports = lpfc_create_vport_work_array(phba); 1050 if (vports != NULL) 1051 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1052 lpfc_rcv_seq_check_edtov(vports[i]); 1053 lpfc_destroy_vport_work_array(phba, vports); 1054 1055 if ((phba->link_state == LPFC_HBA_ERROR) || 1056 (phba->pport->load_flag & FC_UNLOADING) || 1057 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1058 return; 1059 1060 spin_lock_irq(&phba->pport->work_port_lock); 1061 1062 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 1063 jiffies)) { 1064 spin_unlock_irq(&phba->pport->work_port_lock); 1065 if (!phba->hb_outstanding) 1066 mod_timer(&phba->hb_tmofunc, 1067 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1068 else 1069 mod_timer(&phba->hb_tmofunc, 1070 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1071 return; 1072 } 1073 spin_unlock_irq(&phba->pport->work_port_lock); 1074 1075 if (phba->elsbuf_cnt && 1076 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1077 spin_lock_irq(&phba->hbalock); 1078 list_splice_init(&phba->elsbuf, &completions); 1079 phba->elsbuf_cnt = 0; 1080 phba->elsbuf_prev_cnt = 0; 1081 spin_unlock_irq(&phba->hbalock); 1082 1083 while (!list_empty(&completions)) { 1084 list_remove_head(&completions, buf_ptr, 1085 struct lpfc_dmabuf, list); 1086 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1087 kfree(buf_ptr); 1088 } 1089 } 1090 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1091 1092 /* If there is no heart beat outstanding, issue a heartbeat command */ 1093 if (phba->cfg_enable_hba_heartbeat) { 1094 if (!phba->hb_outstanding) { 1095 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1096 (list_empty(&psli->mboxq))) { 1097 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1098 GFP_KERNEL); 1099 if (!pmboxq) { 1100 mod_timer(&phba->hb_tmofunc, 1101 jiffies + 1102 HZ * LPFC_HB_MBOX_INTERVAL); 1103 return; 1104 } 1105 1106 lpfc_heart_beat(phba, pmboxq); 1107 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1108 pmboxq->vport = phba->pport; 1109 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1110 MBX_NOWAIT); 1111 1112 if (retval != MBX_BUSY && 1113 retval != MBX_SUCCESS) { 1114 mempool_free(pmboxq, 1115 phba->mbox_mem_pool); 1116 mod_timer(&phba->hb_tmofunc, 1117 jiffies + 1118 HZ * LPFC_HB_MBOX_INTERVAL); 1119 return; 1120 } 1121 phba->skipped_hb = 0; 1122 phba->hb_outstanding = 1; 1123 } else if (time_before_eq(phba->last_completion_time, 1124 phba->skipped_hb)) { 1125 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1126 "2857 Last completion time not " 1127 " updated in %d ms\n", 1128 jiffies_to_msecs(jiffies 1129 - phba->last_completion_time)); 1130 } else 1131 phba->skipped_hb = jiffies; 1132 1133 mod_timer(&phba->hb_tmofunc, 1134 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1135 return; 1136 } else { 1137 /* 1138 * If heart beat timeout called with hb_outstanding set 1139 * we need to give the hb mailbox cmd a chance to 1140 * complete or TMO. 1141 */ 1142 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1143 "0459 Adapter heartbeat still out" 1144 "standing:last compl time was %d ms.\n", 1145 jiffies_to_msecs(jiffies 1146 - phba->last_completion_time)); 1147 mod_timer(&phba->hb_tmofunc, 1148 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1149 } 1150 } 1151} 1152 1153/** 1154 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1155 * @phba: pointer to lpfc hba data structure. 1156 * 1157 * This routine is called to bring the HBA offline when HBA hardware error 1158 * other than Port Error 6 has been detected. 1159 **/ 1160static void 1161lpfc_offline_eratt(struct lpfc_hba *phba) 1162{ 1163 struct lpfc_sli *psli = &phba->sli; 1164 1165 spin_lock_irq(&phba->hbalock); 1166 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1167 spin_unlock_irq(&phba->hbalock); 1168 lpfc_offline_prep(phba); 1169 1170 lpfc_offline(phba); 1171 lpfc_reset_barrier(phba); 1172 spin_lock_irq(&phba->hbalock); 1173 lpfc_sli_brdreset(phba); 1174 spin_unlock_irq(&phba->hbalock); 1175 lpfc_hba_down_post(phba); 1176 lpfc_sli_brdready(phba, HS_MBRDY); 1177 lpfc_unblock_mgmt_io(phba); 1178 phba->link_state = LPFC_HBA_ERROR; 1179 return; 1180} 1181 1182/** 1183 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1184 * @phba: pointer to lpfc hba data structure. 1185 * 1186 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1187 * other than Port Error 6 has been detected. 1188 **/ 1189static void 1190lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1191{ 1192 lpfc_offline_prep(phba); 1193 lpfc_offline(phba); 1194 lpfc_sli4_brdreset(phba); 1195 lpfc_hba_down_post(phba); 1196 lpfc_sli4_post_status_check(phba); 1197 lpfc_unblock_mgmt_io(phba); 1198 phba->link_state = LPFC_HBA_ERROR; 1199} 1200 1201/** 1202 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1203 * @phba: pointer to lpfc hba data structure. 1204 * 1205 * This routine is invoked to handle the deferred HBA hardware error 1206 * conditions. This type of error is indicated by HBA by setting ER1 1207 * and another ER bit in the host status register. The driver will 1208 * wait until the ER1 bit clears before handling the error condition. 1209 **/ 1210static void 1211lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1212{ 1213 uint32_t old_host_status = phba->work_hs; 1214 struct lpfc_sli_ring *pring; 1215 struct lpfc_sli *psli = &phba->sli; 1216 1217 /* If the pci channel is offline, ignore possible errors, 1218 * since we cannot communicate with the pci card anyway. 1219 */ 1220 if (pci_channel_offline(phba->pcidev)) { 1221 spin_lock_irq(&phba->hbalock); 1222 phba->hba_flag &= ~DEFER_ERATT; 1223 spin_unlock_irq(&phba->hbalock); 1224 return; 1225 } 1226 1227 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1228 "0479 Deferred Adapter Hardware Error " 1229 "Data: x%x x%x x%x\n", 1230 phba->work_hs, 1231 phba->work_status[0], phba->work_status[1]); 1232 1233 spin_lock_irq(&phba->hbalock); 1234 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1235 spin_unlock_irq(&phba->hbalock); 1236 1237 1238 /* 1239 * Firmware stops when it triggred erratt. That could cause the I/Os 1240 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1241 * SCSI layer retry it after re-establishing link. 1242 */ 1243 pring = &psli->ring[psli->fcp_ring]; 1244 lpfc_sli_abort_iocb_ring(phba, pring); 1245 1246 /* 1247 * There was a firmware error. Take the hba offline and then 1248 * attempt to restart it. 1249 */ 1250 lpfc_offline_prep(phba); 1251 lpfc_offline(phba); 1252 1253 /* Wait for the ER1 bit to clear.*/ 1254 while (phba->work_hs & HS_FFER1) { 1255 msleep(100); 1256 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1257 phba->work_hs = UNPLUG_ERR ; 1258 break; 1259 } 1260 /* If driver is unloading let the worker thread continue */ 1261 if (phba->pport->load_flag & FC_UNLOADING) { 1262 phba->work_hs = 0; 1263 break; 1264 } 1265 } 1266 1267 /* 1268 * This is to ptrotect against a race condition in which 1269 * first write to the host attention register clear the 1270 * host status register. 1271 */ 1272 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1273 phba->work_hs = old_host_status & ~HS_FFER1; 1274 1275 spin_lock_irq(&phba->hbalock); 1276 phba->hba_flag &= ~DEFER_ERATT; 1277 spin_unlock_irq(&phba->hbalock); 1278 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1279 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1280} 1281 1282static void 1283lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1284{ 1285 struct lpfc_board_event_header board_event; 1286 struct Scsi_Host *shost; 1287 1288 board_event.event_type = FC_REG_BOARD_EVENT; 1289 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1290 shost = lpfc_shost_from_vport(phba->pport); 1291 fc_host_post_vendor_event(shost, fc_get_event_number(), 1292 sizeof(board_event), 1293 (char *) &board_event, 1294 LPFC_NL_VENDOR_ID); 1295} 1296 1297/** 1298 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1299 * @phba: pointer to lpfc hba data structure. 1300 * 1301 * This routine is invoked to handle the following HBA hardware error 1302 * conditions: 1303 * 1 - HBA error attention interrupt 1304 * 2 - DMA ring index out of range 1305 * 3 - Mailbox command came back as unknown 1306 **/ 1307static void 1308lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1309{ 1310 struct lpfc_vport *vport = phba->pport; 1311 struct lpfc_sli *psli = &phba->sli; 1312 struct lpfc_sli_ring *pring; 1313 uint32_t event_data; 1314 unsigned long temperature; 1315 struct temp_event temp_event_data; 1316 struct Scsi_Host *shost; 1317 1318 /* If the pci channel is offline, ignore possible errors, 1319 * since we cannot communicate with the pci card anyway. 1320 */ 1321 if (pci_channel_offline(phba->pcidev)) { 1322 spin_lock_irq(&phba->hbalock); 1323 phba->hba_flag &= ~DEFER_ERATT; 1324 spin_unlock_irq(&phba->hbalock); 1325 return; 1326 } 1327 1328 /* If resets are disabled then leave the HBA alone and return */ 1329 if (!phba->cfg_enable_hba_reset) 1330 return; 1331 1332 /* Send an internal error event to mgmt application */ 1333 lpfc_board_errevt_to_mgmt(phba); 1334 1335 if (phba->hba_flag & DEFER_ERATT) 1336 lpfc_handle_deferred_eratt(phba); 1337 1338 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1339 if (phba->work_hs & HS_FFER6) 1340 /* Re-establishing Link */ 1341 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1342 "1301 Re-establishing Link " 1343 "Data: x%x x%x x%x\n", 1344 phba->work_hs, phba->work_status[0], 1345 phba->work_status[1]); 1346 if (phba->work_hs & HS_FFER8) 1347 /* Device Zeroization */ 1348 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1349 "2861 Host Authentication device " 1350 "zeroization Data:x%x x%x x%x\n", 1351 phba->work_hs, phba->work_status[0], 1352 phba->work_status[1]); 1353 1354 spin_lock_irq(&phba->hbalock); 1355 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1356 spin_unlock_irq(&phba->hbalock); 1357 1358 /* 1359 * Firmware stops when it triggled erratt with HS_FFER6. 1360 * That could cause the I/Os dropped by the firmware. 1361 * Error iocb (I/O) on txcmplq and let the SCSI layer 1362 * retry it after re-establishing link. 1363 */ 1364 pring = &psli->ring[psli->fcp_ring]; 1365 lpfc_sli_abort_iocb_ring(phba, pring); 1366 1367 /* 1368 * There was a firmware error. Take the hba offline and then 1369 * attempt to restart it. 1370 */ 1371 lpfc_offline_prep(phba); 1372 lpfc_offline(phba); 1373 lpfc_sli_brdrestart(phba); 1374 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1375 lpfc_unblock_mgmt_io(phba); 1376 return; 1377 } 1378 lpfc_unblock_mgmt_io(phba); 1379 } else if (phba->work_hs & HS_CRIT_TEMP) { 1380 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1381 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1382 temp_event_data.event_code = LPFC_CRIT_TEMP; 1383 temp_event_data.data = (uint32_t)temperature; 1384 1385 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1386 "0406 Adapter maximum temperature exceeded " 1387 "(%ld), taking this port offline " 1388 "Data: x%x x%x x%x\n", 1389 temperature, phba->work_hs, 1390 phba->work_status[0], phba->work_status[1]); 1391 1392 shost = lpfc_shost_from_vport(phba->pport); 1393 fc_host_post_vendor_event(shost, fc_get_event_number(), 1394 sizeof(temp_event_data), 1395 (char *) &temp_event_data, 1396 SCSI_NL_VID_TYPE_PCI 1397 | PCI_VENDOR_ID_EMULEX); 1398 1399 spin_lock_irq(&phba->hbalock); 1400 phba->over_temp_state = HBA_OVER_TEMP; 1401 spin_unlock_irq(&phba->hbalock); 1402 lpfc_offline_eratt(phba); 1403 1404 } else { 1405 /* The if clause above forces this code path when the status 1406 * failure is a value other than FFER6. Do not call the offline 1407 * twice. This is the adapter hardware error path. 1408 */ 1409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1410 "0457 Adapter Hardware Error " 1411 "Data: x%x x%x x%x\n", 1412 phba->work_hs, 1413 phba->work_status[0], phba->work_status[1]); 1414 1415 event_data = FC_REG_DUMP_EVENT; 1416 shost = lpfc_shost_from_vport(vport); 1417 fc_host_post_vendor_event(shost, fc_get_event_number(), 1418 sizeof(event_data), (char *) &event_data, 1419 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1420 1421 lpfc_offline_eratt(phba); 1422 } 1423 return; 1424} 1425 1426/** 1427 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1428 * @phba: pointer to lpfc hba data structure. 1429 * 1430 * This routine is invoked to handle the SLI4 HBA hardware error attention 1431 * conditions. 1432 **/ 1433static void 1434lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1435{ 1436 struct lpfc_vport *vport = phba->pport; 1437 uint32_t event_data; 1438 struct Scsi_Host *shost; 1439 uint32_t if_type; 1440 struct lpfc_register portstat_reg; 1441 1442 /* If the pci channel is offline, ignore possible errors, since 1443 * we cannot communicate with the pci card anyway. 1444 */ 1445 if (pci_channel_offline(phba->pcidev)) 1446 return; 1447 /* If resets are disabled then leave the HBA alone and return */ 1448 if (!phba->cfg_enable_hba_reset) 1449 return; 1450 1451 /* Send an internal error event to mgmt application */ 1452 lpfc_board_errevt_to_mgmt(phba); 1453 1454 /* For now, the actual action for SLI4 device handling is not 1455 * specified yet, just treated it as adaptor hardware failure 1456 */ 1457 event_data = FC_REG_DUMP_EVENT; 1458 shost = lpfc_shost_from_vport(vport); 1459 fc_host_post_vendor_event(shost, fc_get_event_number(), 1460 sizeof(event_data), (char *) &event_data, 1461 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1462 1463 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1464 switch (if_type) { 1465 case LPFC_SLI_INTF_IF_TYPE_0: 1466 lpfc_sli4_offline_eratt(phba); 1467 break; 1468 case LPFC_SLI_INTF_IF_TYPE_2: 1469 portstat_reg.word0 = 1470 readl(phba->sli4_hba.u.if_type2.STATUSregaddr); 1471 1472 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1473 /* TODO: Register for Overtemp async events. */ 1474 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1475 "2889 Port Overtemperature event, " 1476 "taking port\n"); 1477 spin_lock_irq(&phba->hbalock); 1478 phba->over_temp_state = HBA_OVER_TEMP; 1479 spin_unlock_irq(&phba->hbalock); 1480 lpfc_sli4_offline_eratt(phba); 1481 return; 1482 } 1483 if (bf_get(lpfc_sliport_status_rn, &portstat_reg)) { 1484 /* 1485 * TODO: Attempt port recovery via a port reset. 1486 * When fully implemented, the driver should 1487 * attempt to recover the port here and return. 1488 * For now, log an error and take the port offline. 1489 */ 1490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1491 "2887 Port Error: Attempting " 1492 "Port Recovery\n"); 1493 } 1494 lpfc_sli4_offline_eratt(phba); 1495 break; 1496 case LPFC_SLI_INTF_IF_TYPE_1: 1497 default: 1498 break; 1499 } 1500} 1501 1502/** 1503 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1504 * @phba: pointer to lpfc HBA data structure. 1505 * 1506 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1507 * routine from the API jump table function pointer from the lpfc_hba struct. 1508 * 1509 * Return codes 1510 * 0 - success. 1511 * Any other value - error. 1512 **/ 1513void 1514lpfc_handle_eratt(struct lpfc_hba *phba) 1515{ 1516 (*phba->lpfc_handle_eratt)(phba); 1517} 1518 1519/** 1520 * lpfc_handle_latt - The HBA link event handler 1521 * @phba: pointer to lpfc hba data structure. 1522 * 1523 * This routine is invoked from the worker thread to handle a HBA host 1524 * attention link event. 1525 **/ 1526void 1527lpfc_handle_latt(struct lpfc_hba *phba) 1528{ 1529 struct lpfc_vport *vport = phba->pport; 1530 struct lpfc_sli *psli = &phba->sli; 1531 LPFC_MBOXQ_t *pmb; 1532 volatile uint32_t control; 1533 struct lpfc_dmabuf *mp; 1534 int rc = 0; 1535 1536 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1537 if (!pmb) { 1538 rc = 1; 1539 goto lpfc_handle_latt_err_exit; 1540 } 1541 1542 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1543 if (!mp) { 1544 rc = 2; 1545 goto lpfc_handle_latt_free_pmb; 1546 } 1547 1548 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1549 if (!mp->virt) { 1550 rc = 3; 1551 goto lpfc_handle_latt_free_mp; 1552 } 1553 1554 /* Cleanup any outstanding ELS commands */ 1555 lpfc_els_flush_all_cmd(phba); 1556 1557 psli->slistat.link_event++; 1558 lpfc_read_topology(phba, pmb, mp); 1559 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1560 pmb->vport = vport; 1561 /* Block ELS IOCBs until we have processed this mbox command */ 1562 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1563 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1564 if (rc == MBX_NOT_FINISHED) { 1565 rc = 4; 1566 goto lpfc_handle_latt_free_mbuf; 1567 } 1568 1569 /* Clear Link Attention in HA REG */ 1570 spin_lock_irq(&phba->hbalock); 1571 writel(HA_LATT, phba->HAregaddr); 1572 readl(phba->HAregaddr); /* flush */ 1573 spin_unlock_irq(&phba->hbalock); 1574 1575 return; 1576 1577lpfc_handle_latt_free_mbuf: 1578 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1579 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1580lpfc_handle_latt_free_mp: 1581 kfree(mp); 1582lpfc_handle_latt_free_pmb: 1583 mempool_free(pmb, phba->mbox_mem_pool); 1584lpfc_handle_latt_err_exit: 1585 /* Enable Link attention interrupts */ 1586 spin_lock_irq(&phba->hbalock); 1587 psli->sli_flag |= LPFC_PROCESS_LA; 1588 control = readl(phba->HCregaddr); 1589 control |= HC_LAINT_ENA; 1590 writel(control, phba->HCregaddr); 1591 readl(phba->HCregaddr); /* flush */ 1592 1593 /* Clear Link Attention in HA REG */ 1594 writel(HA_LATT, phba->HAregaddr); 1595 readl(phba->HAregaddr); /* flush */ 1596 spin_unlock_irq(&phba->hbalock); 1597 lpfc_linkdown(phba); 1598 phba->link_state = LPFC_HBA_ERROR; 1599 1600 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1601 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1602 1603 return; 1604} 1605 1606/** 1607 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1608 * @phba: pointer to lpfc hba data structure. 1609 * @vpd: pointer to the vital product data. 1610 * @len: length of the vital product data in bytes. 1611 * 1612 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1613 * an array of characters. In this routine, the ModelName, ProgramType, and 1614 * ModelDesc, etc. fields of the phba data structure will be populated. 1615 * 1616 * Return codes 1617 * 0 - pointer to the VPD passed in is NULL 1618 * 1 - success 1619 **/ 1620int 1621lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1622{ 1623 uint8_t lenlo, lenhi; 1624 int Length; 1625 int i, j; 1626 int finished = 0; 1627 int index = 0; 1628 1629 if (!vpd) 1630 return 0; 1631 1632 /* Vital Product */ 1633 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1634 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1635 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1636 (uint32_t) vpd[3]); 1637 while (!finished && (index < (len - 4))) { 1638 switch (vpd[index]) { 1639 case 0x82: 1640 case 0x91: 1641 index += 1; 1642 lenlo = vpd[index]; 1643 index += 1; 1644 lenhi = vpd[index]; 1645 index += 1; 1646 i = ((((unsigned short)lenhi) << 8) + lenlo); 1647 index += i; 1648 break; 1649 case 0x90: 1650 index += 1; 1651 lenlo = vpd[index]; 1652 index += 1; 1653 lenhi = vpd[index]; 1654 index += 1; 1655 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1656 if (Length > len - index) 1657 Length = len - index; 1658 while (Length > 0) { 1659 /* Look for Serial Number */ 1660 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1661 index += 2; 1662 i = vpd[index]; 1663 index += 1; 1664 j = 0; 1665 Length -= (3+i); 1666 while(i--) { 1667 phba->SerialNumber[j++] = vpd[index++]; 1668 if (j == 31) 1669 break; 1670 } 1671 phba->SerialNumber[j] = 0; 1672 continue; 1673 } 1674 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1675 phba->vpd_flag |= VPD_MODEL_DESC; 1676 index += 2; 1677 i = vpd[index]; 1678 index += 1; 1679 j = 0; 1680 Length -= (3+i); 1681 while(i--) { 1682 phba->ModelDesc[j++] = vpd[index++]; 1683 if (j == 255) 1684 break; 1685 } 1686 phba->ModelDesc[j] = 0; 1687 continue; 1688 } 1689 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1690 phba->vpd_flag |= VPD_MODEL_NAME; 1691 index += 2; 1692 i = vpd[index]; 1693 index += 1; 1694 j = 0; 1695 Length -= (3+i); 1696 while(i--) { 1697 phba->ModelName[j++] = vpd[index++]; 1698 if (j == 79) 1699 break; 1700 } 1701 phba->ModelName[j] = 0; 1702 continue; 1703 } 1704 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1705 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1706 index += 2; 1707 i = vpd[index]; 1708 index += 1; 1709 j = 0; 1710 Length -= (3+i); 1711 while(i--) { 1712 phba->ProgramType[j++] = vpd[index++]; 1713 if (j == 255) 1714 break; 1715 } 1716 phba->ProgramType[j] = 0; 1717 continue; 1718 } 1719 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1720 phba->vpd_flag |= VPD_PORT; 1721 index += 2; 1722 i = vpd[index]; 1723 index += 1; 1724 j = 0; 1725 Length -= (3+i); 1726 while(i--) { 1727 phba->Port[j++] = vpd[index++]; 1728 if (j == 19) 1729 break; 1730 } 1731 phba->Port[j] = 0; 1732 continue; 1733 } 1734 else { 1735 index += 2; 1736 i = vpd[index]; 1737 index += 1; 1738 index += i; 1739 Length -= (3 + i); 1740 } 1741 } 1742 finished = 0; 1743 break; 1744 case 0x78: 1745 finished = 1; 1746 break; 1747 default: 1748 index ++; 1749 break; 1750 } 1751 } 1752 1753 return(1); 1754} 1755 1756/** 1757 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1758 * @phba: pointer to lpfc hba data structure. 1759 * @mdp: pointer to the data structure to hold the derived model name. 1760 * @descp: pointer to the data structure to hold the derived description. 1761 * 1762 * This routine retrieves HBA's description based on its registered PCI device 1763 * ID. The @descp passed into this function points to an array of 256 chars. It 1764 * shall be returned with the model name, maximum speed, and the host bus type. 1765 * The @mdp passed into this function points to an array of 80 chars. When the 1766 * function returns, the @mdp will be filled with the model name. 1767 **/ 1768static void 1769lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1770{ 1771 lpfc_vpd_t *vp; 1772 uint16_t dev_id = phba->pcidev->device; 1773 int max_speed; 1774 int GE = 0; 1775 int oneConnect = 0; /* default is not a oneConnect */ 1776 struct { 1777 char *name; 1778 char *bus; 1779 char *function; 1780 } m = {"<Unknown>", "", ""}; 1781 1782 if (mdp && mdp[0] != '\0' 1783 && descp && descp[0] != '\0') 1784 return; 1785 1786 if (phba->lmt & LMT_16Gb) 1787 max_speed = 16; 1788 else if (phba->lmt & LMT_10Gb) 1789 max_speed = 10; 1790 else if (phba->lmt & LMT_8Gb) 1791 max_speed = 8; 1792 else if (phba->lmt & LMT_4Gb) 1793 max_speed = 4; 1794 else if (phba->lmt & LMT_2Gb) 1795 max_speed = 2; 1796 else 1797 max_speed = 1; 1798 1799 vp = &phba->vpd; 1800 1801 switch (dev_id) { 1802 case PCI_DEVICE_ID_FIREFLY: 1803 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1804 break; 1805 case PCI_DEVICE_ID_SUPERFLY: 1806 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1807 m = (typeof(m)){"LP7000", "PCI", 1808 "Fibre Channel Adapter"}; 1809 else 1810 m = (typeof(m)){"LP7000E", "PCI", 1811 "Fibre Channel Adapter"}; 1812 break; 1813 case PCI_DEVICE_ID_DRAGONFLY: 1814 m = (typeof(m)){"LP8000", "PCI", 1815 "Fibre Channel Adapter"}; 1816 break; 1817 case PCI_DEVICE_ID_CENTAUR: 1818 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1819 m = (typeof(m)){"LP9002", "PCI", 1820 "Fibre Channel Adapter"}; 1821 else 1822 m = (typeof(m)){"LP9000", "PCI", 1823 "Fibre Channel Adapter"}; 1824 break; 1825 case PCI_DEVICE_ID_RFLY: 1826 m = (typeof(m)){"LP952", "PCI", 1827 "Fibre Channel Adapter"}; 1828 break; 1829 case PCI_DEVICE_ID_PEGASUS: 1830 m = (typeof(m)){"LP9802", "PCI-X", 1831 "Fibre Channel Adapter"}; 1832 break; 1833 case PCI_DEVICE_ID_THOR: 1834 m = (typeof(m)){"LP10000", "PCI-X", 1835 "Fibre Channel Adapter"}; 1836 break; 1837 case PCI_DEVICE_ID_VIPER: 1838 m = (typeof(m)){"LPX1000", "PCI-X", 1839 "Fibre Channel Adapter"}; 1840 break; 1841 case PCI_DEVICE_ID_PFLY: 1842 m = (typeof(m)){"LP982", "PCI-X", 1843 "Fibre Channel Adapter"}; 1844 break; 1845 case PCI_DEVICE_ID_TFLY: 1846 m = (typeof(m)){"LP1050", "PCI-X", 1847 "Fibre Channel Adapter"}; 1848 break; 1849 case PCI_DEVICE_ID_HELIOS: 1850 m = (typeof(m)){"LP11000", "PCI-X2", 1851 "Fibre Channel Adapter"}; 1852 break; 1853 case PCI_DEVICE_ID_HELIOS_SCSP: 1854 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1855 "Fibre Channel Adapter"}; 1856 break; 1857 case PCI_DEVICE_ID_HELIOS_DCSP: 1858 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1859 "Fibre Channel Adapter"}; 1860 break; 1861 case PCI_DEVICE_ID_NEPTUNE: 1862 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1863 break; 1864 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1865 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1866 break; 1867 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1868 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1869 break; 1870 case PCI_DEVICE_ID_BMID: 1871 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1872 break; 1873 case PCI_DEVICE_ID_BSMB: 1874 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1875 break; 1876 case PCI_DEVICE_ID_ZEPHYR: 1877 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1878 break; 1879 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1880 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1881 break; 1882 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1883 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1884 GE = 1; 1885 break; 1886 case PCI_DEVICE_ID_ZMID: 1887 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1888 break; 1889 case PCI_DEVICE_ID_ZSMB: 1890 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1891 break; 1892 case PCI_DEVICE_ID_LP101: 1893 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1894 break; 1895 case PCI_DEVICE_ID_LP10000S: 1896 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1897 break; 1898 case PCI_DEVICE_ID_LP11000S: 1899 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 1900 break; 1901 case PCI_DEVICE_ID_LPE11000S: 1902 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 1903 break; 1904 case PCI_DEVICE_ID_SAT: 1905 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 1906 break; 1907 case PCI_DEVICE_ID_SAT_MID: 1908 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 1909 break; 1910 case PCI_DEVICE_ID_SAT_SMB: 1911 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 1912 break; 1913 case PCI_DEVICE_ID_SAT_DCSP: 1914 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 1915 break; 1916 case PCI_DEVICE_ID_SAT_SCSP: 1917 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 1918 break; 1919 case PCI_DEVICE_ID_SAT_S: 1920 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 1921 break; 1922 case PCI_DEVICE_ID_HORNET: 1923 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 1924 GE = 1; 1925 break; 1926 case PCI_DEVICE_ID_PROTEUS_VF: 1927 m = (typeof(m)){"LPev12000", "PCIe IOV", 1928 "Fibre Channel Adapter"}; 1929 break; 1930 case PCI_DEVICE_ID_PROTEUS_PF: 1931 m = (typeof(m)){"LPev12000", "PCIe IOV", 1932 "Fibre Channel Adapter"}; 1933 break; 1934 case PCI_DEVICE_ID_PROTEUS_S: 1935 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 1936 "Fibre Channel Adapter"}; 1937 break; 1938 case PCI_DEVICE_ID_TIGERSHARK: 1939 oneConnect = 1; 1940 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 1941 break; 1942 case PCI_DEVICE_ID_TOMCAT: 1943 oneConnect = 1; 1944 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 1945 break; 1946 case PCI_DEVICE_ID_FALCON: 1947 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 1948 "EmulexSecure Fibre"}; 1949 break; 1950 case PCI_DEVICE_ID_BALIUS: 1951 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 1952 "Fibre Channel Adapter"}; 1953 break; 1954 case PCI_DEVICE_ID_LANCER_FC: 1955 case PCI_DEVICE_ID_LANCER_FC_VF: 1956 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 1957 break; 1958 case PCI_DEVICE_ID_LANCER_FCOE: 1959 case PCI_DEVICE_ID_LANCER_FCOE_VF: 1960 oneConnect = 1; 1961 m = (typeof(m)){"OCe50100", "PCIe", "FCoE"}; 1962 break; 1963 default: 1964 m = (typeof(m)){"Unknown", "", ""}; 1965 break; 1966 } 1967 1968 if (mdp && mdp[0] == '\0') 1969 snprintf(mdp, 79,"%s", m.name); 1970 /* 1971 * oneConnect hba requires special processing, they are all initiators 1972 * and we put the port number on the end 1973 */ 1974 if (descp && descp[0] == '\0') { 1975 if (oneConnect) 1976 snprintf(descp, 255, 1977 "Emulex OneConnect %s, %s Initiator, Port %s", 1978 m.name, m.function, 1979 phba->Port); 1980 else 1981 snprintf(descp, 255, 1982 "Emulex %s %d%s %s %s", 1983 m.name, max_speed, (GE) ? "GE" : "Gb", 1984 m.bus, m.function); 1985 } 1986} 1987 1988/** 1989 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 1990 * @phba: pointer to lpfc hba data structure. 1991 * @pring: pointer to a IOCB ring. 1992 * @cnt: the number of IOCBs to be posted to the IOCB ring. 1993 * 1994 * This routine posts a given number of IOCBs with the associated DMA buffer 1995 * descriptors specified by the cnt argument to the given IOCB ring. 1996 * 1997 * Return codes 1998 * The number of IOCBs NOT able to be posted to the IOCB ring. 1999 **/ 2000int 2001lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2002{ 2003 IOCB_t *icmd; 2004 struct lpfc_iocbq *iocb; 2005 struct lpfc_dmabuf *mp1, *mp2; 2006 2007 cnt += pring->missbufcnt; 2008 2009 /* While there are buffers to post */ 2010 while (cnt > 0) { 2011 /* Allocate buffer for command iocb */ 2012 iocb = lpfc_sli_get_iocbq(phba); 2013 if (iocb == NULL) { 2014 pring->missbufcnt = cnt; 2015 return cnt; 2016 } 2017 icmd = &iocb->iocb; 2018 2019 /* 2 buffers can be posted per command */ 2020 /* Allocate buffer to post */ 2021 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2022 if (mp1) 2023 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2024 if (!mp1 || !mp1->virt) { 2025 kfree(mp1); 2026 lpfc_sli_release_iocbq(phba, iocb); 2027 pring->missbufcnt = cnt; 2028 return cnt; 2029 } 2030 2031 INIT_LIST_HEAD(&mp1->list); 2032 /* Allocate buffer to post */ 2033 if (cnt > 1) { 2034 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2035 if (mp2) 2036 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2037 &mp2->phys); 2038 if (!mp2 || !mp2->virt) { 2039 kfree(mp2); 2040 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2041 kfree(mp1); 2042 lpfc_sli_release_iocbq(phba, iocb); 2043 pring->missbufcnt = cnt; 2044 return cnt; 2045 } 2046 2047 INIT_LIST_HEAD(&mp2->list); 2048 } else { 2049 mp2 = NULL; 2050 } 2051 2052 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2053 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2054 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2055 icmd->ulpBdeCount = 1; 2056 cnt--; 2057 if (mp2) { 2058 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2059 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2060 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2061 cnt--; 2062 icmd->ulpBdeCount = 2; 2063 } 2064 2065 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2066 icmd->ulpLe = 1; 2067 2068 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2069 IOCB_ERROR) { 2070 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2071 kfree(mp1); 2072 cnt++; 2073 if (mp2) { 2074 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2075 kfree(mp2); 2076 cnt++; 2077 } 2078 lpfc_sli_release_iocbq(phba, iocb); 2079 pring->missbufcnt = cnt; 2080 return cnt; 2081 } 2082 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2083 if (mp2) 2084 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2085 } 2086 pring->missbufcnt = 0; 2087 return 0; 2088} 2089 2090/** 2091 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2092 * @phba: pointer to lpfc hba data structure. 2093 * 2094 * This routine posts initial receive IOCB buffers to the ELS ring. The 2095 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2096 * set to 64 IOCBs. 2097 * 2098 * Return codes 2099 * 0 - success (currently always success) 2100 **/ 2101static int 2102lpfc_post_rcv_buf(struct lpfc_hba *phba) 2103{ 2104 struct lpfc_sli *psli = &phba->sli; 2105 2106 /* Ring 0, ELS / CT buffers */ 2107 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2108 /* Ring 2 - FCP no buffers needed */ 2109 2110 return 0; 2111} 2112 2113#define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2114 2115/** 2116 * lpfc_sha_init - Set up initial array of hash table entries 2117 * @HashResultPointer: pointer to an array as hash table. 2118 * 2119 * This routine sets up the initial values to the array of hash table entries 2120 * for the LC HBAs. 2121 **/ 2122static void 2123lpfc_sha_init(uint32_t * HashResultPointer) 2124{ 2125 HashResultPointer[0] = 0x67452301; 2126 HashResultPointer[1] = 0xEFCDAB89; 2127 HashResultPointer[2] = 0x98BADCFE; 2128 HashResultPointer[3] = 0x10325476; 2129 HashResultPointer[4] = 0xC3D2E1F0; 2130} 2131 2132/** 2133 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2134 * @HashResultPointer: pointer to an initial/result hash table. 2135 * @HashWorkingPointer: pointer to an working hash table. 2136 * 2137 * This routine iterates an initial hash table pointed by @HashResultPointer 2138 * with the values from the working hash table pointeed by @HashWorkingPointer. 2139 * The results are putting back to the initial hash table, returned through 2140 * the @HashResultPointer as the result hash table. 2141 **/ 2142static void 2143lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2144{ 2145 int t; 2146 uint32_t TEMP; 2147 uint32_t A, B, C, D, E; 2148 t = 16; 2149 do { 2150 HashWorkingPointer[t] = 2151 S(1, 2152 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2153 8] ^ 2154 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2155 } while (++t <= 79); 2156 t = 0; 2157 A = HashResultPointer[0]; 2158 B = HashResultPointer[1]; 2159 C = HashResultPointer[2]; 2160 D = HashResultPointer[3]; 2161 E = HashResultPointer[4]; 2162 2163 do { 2164 if (t < 20) { 2165 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2166 } else if (t < 40) { 2167 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2168 } else if (t < 60) { 2169 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2170 } else { 2171 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2172 } 2173 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2174 E = D; 2175 D = C; 2176 C = S(30, B); 2177 B = A; 2178 A = TEMP; 2179 } while (++t <= 79); 2180 2181 HashResultPointer[0] += A; 2182 HashResultPointer[1] += B; 2183 HashResultPointer[2] += C; 2184 HashResultPointer[3] += D; 2185 HashResultPointer[4] += E; 2186 2187} 2188 2189/** 2190 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2191 * @RandomChallenge: pointer to the entry of host challenge random number array. 2192 * @HashWorking: pointer to the entry of the working hash array. 2193 * 2194 * This routine calculates the working hash array referred by @HashWorking 2195 * from the challenge random numbers associated with the host, referred by 2196 * @RandomChallenge. The result is put into the entry of the working hash 2197 * array and returned by reference through @HashWorking. 2198 **/ 2199static void 2200lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2201{ 2202 *HashWorking = (*RandomChallenge ^ *HashWorking); 2203} 2204 2205/** 2206 * lpfc_hba_init - Perform special handling for LC HBA initialization 2207 * @phba: pointer to lpfc hba data structure. 2208 * @hbainit: pointer to an array of unsigned 32-bit integers. 2209 * 2210 * This routine performs the special handling for LC HBA initialization. 2211 **/ 2212void 2213lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2214{ 2215 int t; 2216 uint32_t *HashWorking; 2217 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2218 2219 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2220 if (!HashWorking) 2221 return; 2222 2223 HashWorking[0] = HashWorking[78] = *pwwnn++; 2224 HashWorking[1] = HashWorking[79] = *pwwnn; 2225 2226 for (t = 0; t < 7; t++) 2227 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2228 2229 lpfc_sha_init(hbainit); 2230 lpfc_sha_iterate(hbainit, HashWorking); 2231 kfree(HashWorking); 2232} 2233 2234/** 2235 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2236 * @vport: pointer to a virtual N_Port data structure. 2237 * 2238 * This routine performs the necessary cleanups before deleting the @vport. 2239 * It invokes the discovery state machine to perform necessary state 2240 * transitions and to release the ndlps associated with the @vport. Note, 2241 * the physical port is treated as @vport 0. 2242 **/ 2243void 2244lpfc_cleanup(struct lpfc_vport *vport) 2245{ 2246 struct lpfc_hba *phba = vport->phba; 2247 struct lpfc_nodelist *ndlp, *next_ndlp; 2248 int i = 0; 2249 2250 if (phba->link_state > LPFC_LINK_DOWN) 2251 lpfc_port_link_failure(vport); 2252 2253 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2254 if (!NLP_CHK_NODE_ACT(ndlp)) { 2255 ndlp = lpfc_enable_node(vport, ndlp, 2256 NLP_STE_UNUSED_NODE); 2257 if (!ndlp) 2258 continue; 2259 spin_lock_irq(&phba->ndlp_lock); 2260 NLP_SET_FREE_REQ(ndlp); 2261 spin_unlock_irq(&phba->ndlp_lock); 2262 /* Trigger the release of the ndlp memory */ 2263 lpfc_nlp_put(ndlp); 2264 continue; 2265 } 2266 spin_lock_irq(&phba->ndlp_lock); 2267 if (NLP_CHK_FREE_REQ(ndlp)) { 2268 /* The ndlp should not be in memory free mode already */ 2269 spin_unlock_irq(&phba->ndlp_lock); 2270 continue; 2271 } else 2272 /* Indicate request for freeing ndlp memory */ 2273 NLP_SET_FREE_REQ(ndlp); 2274 spin_unlock_irq(&phba->ndlp_lock); 2275 2276 if (vport->port_type != LPFC_PHYSICAL_PORT && 2277 ndlp->nlp_DID == Fabric_DID) { 2278 /* Just free up ndlp with Fabric_DID for vports */ 2279 lpfc_nlp_put(ndlp); 2280 continue; 2281 } 2282 2283 if (ndlp->nlp_type & NLP_FABRIC) 2284 lpfc_disc_state_machine(vport, ndlp, NULL, 2285 NLP_EVT_DEVICE_RECOVERY); 2286 2287 lpfc_disc_state_machine(vport, ndlp, NULL, 2288 NLP_EVT_DEVICE_RM); 2289 2290 } 2291 2292 /* At this point, ALL ndlp's should be gone 2293 * because of the previous NLP_EVT_DEVICE_RM. 2294 * Lets wait for this to happen, if needed. 2295 */ 2296 while (!list_empty(&vport->fc_nodes)) { 2297 if (i++ > 3000) { 2298 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2299 "0233 Nodelist not empty\n"); 2300 list_for_each_entry_safe(ndlp, next_ndlp, 2301 &vport->fc_nodes, nlp_listp) { 2302 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2303 LOG_NODE, 2304 "0282 did:x%x ndlp:x%p " 2305 "usgmap:x%x refcnt:%d\n", 2306 ndlp->nlp_DID, (void *)ndlp, 2307 ndlp->nlp_usg_map, 2308 atomic_read( 2309 &ndlp->kref.refcount)); 2310 } 2311 break; 2312 } 2313 2314 /* Wait for any activity on ndlps to settle */ 2315 msleep(10); 2316 } 2317 lpfc_cleanup_vports_rrqs(vport, NULL); 2318} 2319 2320/** 2321 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2322 * @vport: pointer to a virtual N_Port data structure. 2323 * 2324 * This routine stops all the timers associated with a @vport. This function 2325 * is invoked before disabling or deleting a @vport. Note that the physical 2326 * port is treated as @vport 0. 2327 **/ 2328void 2329lpfc_stop_vport_timers(struct lpfc_vport *vport) 2330{ 2331 del_timer_sync(&vport->els_tmofunc); 2332 del_timer_sync(&vport->fc_fdmitmo); 2333 del_timer_sync(&vport->delayed_disc_tmo); 2334 lpfc_can_disctmo(vport); 2335 return; 2336} 2337 2338/** 2339 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2340 * @phba: pointer to lpfc hba data structure. 2341 * 2342 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2343 * caller of this routine should already hold the host lock. 2344 **/ 2345void 2346__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2347{ 2348 /* Clear pending FCF rediscovery wait flag */ 2349 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2350 2351 /* Now, try to stop the timer */ 2352 del_timer(&phba->fcf.redisc_wait); 2353} 2354 2355/** 2356 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2357 * @phba: pointer to lpfc hba data structure. 2358 * 2359 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2360 * checks whether the FCF rediscovery wait timer is pending with the host 2361 * lock held before proceeding with disabling the timer and clearing the 2362 * wait timer pendig flag. 2363 **/ 2364void 2365lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2366{ 2367 spin_lock_irq(&phba->hbalock); 2368 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2369 /* FCF rediscovery timer already fired or stopped */ 2370 spin_unlock_irq(&phba->hbalock); 2371 return; 2372 } 2373 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2374 /* Clear failover in progress flags */ 2375 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2376 spin_unlock_irq(&phba->hbalock); 2377} 2378 2379/** 2380 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2381 * @phba: pointer to lpfc hba data structure. 2382 * 2383 * This routine stops all the timers associated with a HBA. This function is 2384 * invoked before either putting a HBA offline or unloading the driver. 2385 **/ 2386void 2387lpfc_stop_hba_timers(struct lpfc_hba *phba) 2388{ 2389 lpfc_stop_vport_timers(phba->pport); 2390 del_timer_sync(&phba->sli.mbox_tmo); 2391 del_timer_sync(&phba->fabric_block_timer); 2392 del_timer_sync(&phba->eratt_poll); 2393 del_timer_sync(&phba->hb_tmofunc); 2394 if (phba->sli_rev == LPFC_SLI_REV4) { 2395 del_timer_sync(&phba->rrq_tmr); 2396 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2397 } 2398 phba->hb_outstanding = 0; 2399 2400 switch (phba->pci_dev_grp) { 2401 case LPFC_PCI_DEV_LP: 2402 /* Stop any LightPulse device specific driver timers */ 2403 del_timer_sync(&phba->fcp_poll_timer); 2404 break; 2405 case LPFC_PCI_DEV_OC: 2406 /* Stop any OneConnect device sepcific driver timers */ 2407 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2408 break; 2409 default: 2410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2411 "0297 Invalid device group (x%x)\n", 2412 phba->pci_dev_grp); 2413 break; 2414 } 2415 return; 2416} 2417 2418/** 2419 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2420 * @phba: pointer to lpfc hba data structure. 2421 * 2422 * This routine marks a HBA's management interface as blocked. Once the HBA's 2423 * management interface is marked as blocked, all the user space access to 2424 * the HBA, whether they are from sysfs interface or libdfc interface will 2425 * all be blocked. The HBA is set to block the management interface when the 2426 * driver prepares the HBA interface for online or offline. 2427 **/ 2428static void 2429lpfc_block_mgmt_io(struct lpfc_hba * phba) 2430{ 2431 unsigned long iflag; 2432 uint8_t actcmd = MBX_HEARTBEAT; 2433 unsigned long timeout; 2434 2435 2436 spin_lock_irqsave(&phba->hbalock, iflag); 2437 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2438 if (phba->sli.mbox_active) 2439 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2440 spin_unlock_irqrestore(&phba->hbalock, iflag); 2441 /* Determine how long we might wait for the active mailbox 2442 * command to be gracefully completed by firmware. 2443 */ 2444 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) + 2445 jiffies; 2446 /* Wait for the outstnading mailbox command to complete */ 2447 while (phba->sli.mbox_active) { 2448 /* Check active mailbox complete status every 2ms */ 2449 msleep(2); 2450 if (time_after(jiffies, timeout)) { 2451 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2452 "2813 Mgmt IO is Blocked %x " 2453 "- mbox cmd %x still active\n", 2454 phba->sli.sli_flag, actcmd); 2455 break; 2456 } 2457 } 2458} 2459 2460/** 2461 * lpfc_online - Initialize and bring a HBA online 2462 * @phba: pointer to lpfc hba data structure. 2463 * 2464 * This routine initializes the HBA and brings a HBA online. During this 2465 * process, the management interface is blocked to prevent user space access 2466 * to the HBA interfering with the driver initialization. 2467 * 2468 * Return codes 2469 * 0 - successful 2470 * 1 - failed 2471 **/ 2472int 2473lpfc_online(struct lpfc_hba *phba) 2474{ 2475 struct lpfc_vport *vport; 2476 struct lpfc_vport **vports; 2477 int i; 2478 2479 if (!phba) 2480 return 0; 2481 vport = phba->pport; 2482 2483 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2484 return 0; 2485 2486 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2487 "0458 Bring Adapter online\n"); 2488 2489 lpfc_block_mgmt_io(phba); 2490 2491 if (!lpfc_sli_queue_setup(phba)) { 2492 lpfc_unblock_mgmt_io(phba); 2493 return 1; 2494 } 2495 2496 if (phba->sli_rev == LPFC_SLI_REV4) { 2497 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2498 lpfc_unblock_mgmt_io(phba); 2499 return 1; 2500 } 2501 } else { 2502 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2503 lpfc_unblock_mgmt_io(phba); 2504 return 1; 2505 } 2506 } 2507 2508 vports = lpfc_create_vport_work_array(phba); 2509 if (vports != NULL) 2510 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2511 struct Scsi_Host *shost; 2512 shost = lpfc_shost_from_vport(vports[i]); 2513 spin_lock_irq(shost->host_lock); 2514 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2515 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2516 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2517 if (phba->sli_rev == LPFC_SLI_REV4) 2518 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2519 spin_unlock_irq(shost->host_lock); 2520 } 2521 lpfc_destroy_vport_work_array(phba, vports); 2522 2523 lpfc_unblock_mgmt_io(phba); 2524 return 0; 2525} 2526 2527/** 2528 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2529 * @phba: pointer to lpfc hba data structure. 2530 * 2531 * This routine marks a HBA's management interface as not blocked. Once the 2532 * HBA's management interface is marked as not blocked, all the user space 2533 * access to the HBA, whether they are from sysfs interface or libdfc 2534 * interface will be allowed. The HBA is set to block the management interface 2535 * when the driver prepares the HBA interface for online or offline and then 2536 * set to unblock the management interface afterwards. 2537 **/ 2538void 2539lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2540{ 2541 unsigned long iflag; 2542 2543 spin_lock_irqsave(&phba->hbalock, iflag); 2544 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2545 spin_unlock_irqrestore(&phba->hbalock, iflag); 2546} 2547 2548/** 2549 * lpfc_offline_prep - Prepare a HBA to be brought offline 2550 * @phba: pointer to lpfc hba data structure. 2551 * 2552 * This routine is invoked to prepare a HBA to be brought offline. It performs 2553 * unregistration login to all the nodes on all vports and flushes the mailbox 2554 * queue to make it ready to be brought offline. 2555 **/ 2556void 2557lpfc_offline_prep(struct lpfc_hba * phba) 2558{ 2559 struct lpfc_vport *vport = phba->pport; 2560 struct lpfc_nodelist *ndlp, *next_ndlp; 2561 struct lpfc_vport **vports; 2562 struct Scsi_Host *shost; 2563 int i; 2564 2565 if (vport->fc_flag & FC_OFFLINE_MODE) 2566 return; 2567 2568 lpfc_block_mgmt_io(phba); 2569 2570 lpfc_linkdown(phba); 2571 2572 /* Issue an unreg_login to all nodes on all vports */ 2573 vports = lpfc_create_vport_work_array(phba); 2574 if (vports != NULL) { 2575 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2576 if (vports[i]->load_flag & FC_UNLOADING) 2577 continue; 2578 shost = lpfc_shost_from_vport(vports[i]); 2579 spin_lock_irq(shost->host_lock); 2580 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2581 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2582 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2583 spin_unlock_irq(shost->host_lock); 2584 2585 shost = lpfc_shost_from_vport(vports[i]); 2586 list_for_each_entry_safe(ndlp, next_ndlp, 2587 &vports[i]->fc_nodes, 2588 nlp_listp) { 2589 if (!NLP_CHK_NODE_ACT(ndlp)) 2590 continue; 2591 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2592 continue; 2593 if (ndlp->nlp_type & NLP_FABRIC) { 2594 lpfc_disc_state_machine(vports[i], ndlp, 2595 NULL, NLP_EVT_DEVICE_RECOVERY); 2596 lpfc_disc_state_machine(vports[i], ndlp, 2597 NULL, NLP_EVT_DEVICE_RM); 2598 } 2599 spin_lock_irq(shost->host_lock); 2600 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2601 spin_unlock_irq(shost->host_lock); 2602 lpfc_unreg_rpi(vports[i], ndlp); 2603 } 2604 } 2605 } 2606 lpfc_destroy_vport_work_array(phba, vports); 2607 2608 lpfc_sli_mbox_sys_shutdown(phba); 2609} 2610 2611/** 2612 * lpfc_offline - Bring a HBA offline 2613 * @phba: pointer to lpfc hba data structure. 2614 * 2615 * This routine actually brings a HBA offline. It stops all the timers 2616 * associated with the HBA, brings down the SLI layer, and eventually 2617 * marks the HBA as in offline state for the upper layer protocol. 2618 **/ 2619void 2620lpfc_offline(struct lpfc_hba *phba) 2621{ 2622 struct Scsi_Host *shost; 2623 struct lpfc_vport **vports; 2624 int i; 2625 2626 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2627 return; 2628 2629 /* stop port and all timers associated with this hba */ 2630 lpfc_stop_port(phba); 2631 vports = lpfc_create_vport_work_array(phba); 2632 if (vports != NULL) 2633 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2634 lpfc_stop_vport_timers(vports[i]); 2635 lpfc_destroy_vport_work_array(phba, vports); 2636 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2637 "0460 Bring Adapter offline\n"); 2638 /* Bring down the SLI Layer and cleanup. The HBA is offline 2639 now. */ 2640 lpfc_sli_hba_down(phba); 2641 spin_lock_irq(&phba->hbalock); 2642 phba->work_ha = 0; 2643 spin_unlock_irq(&phba->hbalock); 2644 vports = lpfc_create_vport_work_array(phba); 2645 if (vports != NULL) 2646 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2647 shost = lpfc_shost_from_vport(vports[i]); 2648 spin_lock_irq(shost->host_lock); 2649 vports[i]->work_port_events = 0; 2650 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2651 spin_unlock_irq(shost->host_lock); 2652 } 2653 lpfc_destroy_vport_work_array(phba, vports); 2654} 2655 2656/** 2657 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2658 * @phba: pointer to lpfc hba data structure. 2659 * 2660 * This routine is to free all the SCSI buffers and IOCBs from the driver 2661 * list back to kernel. It is called from lpfc_pci_remove_one to free 2662 * the internal resources before the device is removed from the system. 2663 * 2664 * Return codes 2665 * 0 - successful (for now, it always returns 0) 2666 **/ 2667static int 2668lpfc_scsi_free(struct lpfc_hba *phba) 2669{ 2670 struct lpfc_scsi_buf *sb, *sb_next; 2671 struct lpfc_iocbq *io, *io_next; 2672 2673 spin_lock_irq(&phba->hbalock); 2674 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2675 spin_lock(&phba->scsi_buf_list_lock); 2676 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2677 list_del(&sb->list); 2678 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2679 sb->dma_handle); 2680 kfree(sb); 2681 phba->total_scsi_bufs--; 2682 } 2683 spin_unlock(&phba->scsi_buf_list_lock); 2684 2685 /* Release all the lpfc_iocbq entries maintained by this host. */ 2686 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2687 list_del(&io->list); 2688 kfree(io); 2689 phba->total_iocbq_bufs--; 2690 } 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_16Gb) 2931 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 2932 if (phba->lmt & LMT_10Gb) 2933 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2934 if (phba->lmt & LMT_8Gb) 2935 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2936 if (phba->lmt & LMT_4Gb) 2937 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2938 if (phba->lmt & LMT_2Gb) 2939 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2940 if (phba->lmt & LMT_1Gb) 2941 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2942 2943 fc_host_maxframe_size(shost) = 2944 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2945 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2946 2947 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 2948 2949 /* This value is also unchanging */ 2950 memset(fc_host_active_fc4s(shost), 0, 2951 sizeof(fc_host_active_fc4s(shost))); 2952 fc_host_active_fc4s(shost)[2] = 1; 2953 fc_host_active_fc4s(shost)[7] = 1; 2954 2955 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2956 spin_lock_irq(shost->host_lock); 2957 vport->load_flag &= ~FC_LOADING; 2958 spin_unlock_irq(shost->host_lock); 2959} 2960 2961/** 2962 * lpfc_stop_port_s3 - Stop SLI3 device port 2963 * @phba: pointer to lpfc hba data structure. 2964 * 2965 * This routine is invoked to stop an SLI3 device port, it stops the device 2966 * from generating interrupts and stops the device driver's timers for the 2967 * device. 2968 **/ 2969static void 2970lpfc_stop_port_s3(struct lpfc_hba *phba) 2971{ 2972 /* Clear all interrupt enable conditions */ 2973 writel(0, phba->HCregaddr); 2974 readl(phba->HCregaddr); /* flush */ 2975 /* Clear all pending interrupts */ 2976 writel(0xffffffff, phba->HAregaddr); 2977 readl(phba->HAregaddr); /* flush */ 2978 2979 /* Reset some HBA SLI setup states */ 2980 lpfc_stop_hba_timers(phba); 2981 phba->pport->work_port_events = 0; 2982} 2983 2984/** 2985 * lpfc_stop_port_s4 - Stop SLI4 device port 2986 * @phba: pointer to lpfc hba data structure. 2987 * 2988 * This routine is invoked to stop an SLI4 device port, it stops the device 2989 * from generating interrupts and stops the device driver's timers for the 2990 * device. 2991 **/ 2992static void 2993lpfc_stop_port_s4(struct lpfc_hba *phba) 2994{ 2995 /* Reset some HBA SLI4 setup states */ 2996 lpfc_stop_hba_timers(phba); 2997 phba->pport->work_port_events = 0; 2998 phba->sli4_hba.intr_enable = 0; 2999} 3000 3001/** 3002 * lpfc_stop_port - Wrapper function for stopping hba port 3003 * @phba: Pointer to HBA context object. 3004 * 3005 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 3006 * the API jump table function pointer from the lpfc_hba struct. 3007 **/ 3008void 3009lpfc_stop_port(struct lpfc_hba *phba) 3010{ 3011 phba->lpfc_stop_port(phba); 3012} 3013 3014/** 3015 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 3016 * @phba: Pointer to hba for which this call is being executed. 3017 * 3018 * This routine starts the timer waiting for the FCF rediscovery to complete. 3019 **/ 3020void 3021lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 3022{ 3023 unsigned long fcf_redisc_wait_tmo = 3024 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 3025 /* Start fcf rediscovery wait period timer */ 3026 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 3027 spin_lock_irq(&phba->hbalock); 3028 /* Allow action to new fcf asynchronous event */ 3029 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 3030 /* Mark the FCF rediscovery pending state */ 3031 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 3032 spin_unlock_irq(&phba->hbalock); 3033} 3034 3035/** 3036 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 3037 * @ptr: Map to lpfc_hba data structure pointer. 3038 * 3039 * This routine is invoked when waiting for FCF table rediscover has been 3040 * timed out. If new FCF record(s) has (have) been discovered during the 3041 * wait period, a new FCF event shall be added to the FCOE async event 3042 * list, and then worker thread shall be waked up for processing from the 3043 * worker thread context. 3044 **/ 3045void 3046lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 3047{ 3048 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 3049 3050 /* Don't send FCF rediscovery event if timer cancelled */ 3051 spin_lock_irq(&phba->hbalock); 3052 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 3053 spin_unlock_irq(&phba->hbalock); 3054 return; 3055 } 3056 /* Clear FCF rediscovery timer pending flag */ 3057 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 3058 /* FCF rediscovery event to worker thread */ 3059 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 3060 spin_unlock_irq(&phba->hbalock); 3061 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3062 "2776 FCF rediscover quiescent timer expired\n"); 3063 /* wake up worker thread */ 3064 lpfc_worker_wake_up(phba); 3065} 3066 3067/** 3068 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3069 * @phba: pointer to lpfc hba data structure. 3070 * @acqe_link: pointer to the async link completion queue entry. 3071 * 3072 * This routine is to parse the SLI4 link-attention link fault code and 3073 * translate it into the base driver's read link attention mailbox command 3074 * status. 3075 * 3076 * Return: Link-attention status in terms of base driver's coding. 3077 **/ 3078static uint16_t 3079lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3080 struct lpfc_acqe_link *acqe_link) 3081{ 3082 uint16_t latt_fault; 3083 3084 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3085 case LPFC_ASYNC_LINK_FAULT_NONE: 3086 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3087 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3088 latt_fault = 0; 3089 break; 3090 default: 3091 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3092 "0398 Invalid link fault code: x%x\n", 3093 bf_get(lpfc_acqe_link_fault, acqe_link)); 3094 latt_fault = MBXERR_ERROR; 3095 break; 3096 } 3097 return latt_fault; 3098} 3099 3100/** 3101 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3102 * @phba: pointer to lpfc hba data structure. 3103 * @acqe_link: pointer to the async link completion queue entry. 3104 * 3105 * This routine is to parse the SLI4 link attention type and translate it 3106 * into the base driver's link attention type coding. 3107 * 3108 * Return: Link attention type in terms of base driver's coding. 3109 **/ 3110static uint8_t 3111lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3112 struct lpfc_acqe_link *acqe_link) 3113{ 3114 uint8_t att_type; 3115 3116 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3117 case LPFC_ASYNC_LINK_STATUS_DOWN: 3118 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3119 att_type = LPFC_ATT_LINK_DOWN; 3120 break; 3121 case LPFC_ASYNC_LINK_STATUS_UP: 3122 /* Ignore physical link up events - wait for logical link up */ 3123 att_type = LPFC_ATT_RESERVED; 3124 break; 3125 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3126 att_type = LPFC_ATT_LINK_UP; 3127 break; 3128 default: 3129 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3130 "0399 Invalid link attention type: x%x\n", 3131 bf_get(lpfc_acqe_link_status, acqe_link)); 3132 att_type = LPFC_ATT_RESERVED; 3133 break; 3134 } 3135 return att_type; 3136} 3137 3138/** 3139 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3140 * @phba: pointer to lpfc hba data structure. 3141 * @acqe_link: pointer to the async link completion queue entry. 3142 * 3143 * This routine is to parse the SLI4 link-attention link speed and translate 3144 * it into the base driver's link-attention link speed coding. 3145 * 3146 * Return: Link-attention link speed in terms of base driver's coding. 3147 **/ 3148static uint8_t 3149lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3150 struct lpfc_acqe_link *acqe_link) 3151{ 3152 uint8_t link_speed; 3153 3154 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3155 case LPFC_ASYNC_LINK_SPEED_ZERO: 3156 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3157 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3158 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3159 break; 3160 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3161 link_speed = LPFC_LINK_SPEED_1GHZ; 3162 break; 3163 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3164 link_speed = LPFC_LINK_SPEED_10GHZ; 3165 break; 3166 default: 3167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3168 "0483 Invalid link-attention link speed: x%x\n", 3169 bf_get(lpfc_acqe_link_speed, acqe_link)); 3170 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3171 break; 3172 } 3173 return link_speed; 3174} 3175 3176/** 3177 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 3178 * @phba: pointer to lpfc hba data structure. 3179 * @acqe_link: pointer to the async link completion queue entry. 3180 * 3181 * This routine is to handle the SLI4 asynchronous FCoE link event. 3182 **/ 3183static void 3184lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3185 struct lpfc_acqe_link *acqe_link) 3186{ 3187 struct lpfc_dmabuf *mp; 3188 LPFC_MBOXQ_t *pmb; 3189 MAILBOX_t *mb; 3190 struct lpfc_mbx_read_top *la; 3191 uint8_t att_type; 3192 int rc; 3193 3194 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3195 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 3196 return; 3197 phba->fcoe_eventtag = acqe_link->event_tag; 3198 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3199 if (!pmb) { 3200 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3201 "0395 The mboxq allocation failed\n"); 3202 return; 3203 } 3204 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3205 if (!mp) { 3206 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3207 "0396 The lpfc_dmabuf allocation failed\n"); 3208 goto out_free_pmb; 3209 } 3210 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3211 if (!mp->virt) { 3212 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3213 "0397 The mbuf allocation failed\n"); 3214 goto out_free_dmabuf; 3215 } 3216 3217 /* Cleanup any outstanding ELS commands */ 3218 lpfc_els_flush_all_cmd(phba); 3219 3220 /* Block ELS IOCBs until we have done process link event */ 3221 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3222 3223 /* Update link event statistics */ 3224 phba->sli.slistat.link_event++; 3225 3226 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3227 lpfc_read_topology(phba, pmb, mp); 3228 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3229 pmb->vport = phba->pport; 3230 3231 /* Keep the link status for extra SLI4 state machine reference */ 3232 phba->sli4_hba.link_state.speed = 3233 bf_get(lpfc_acqe_link_speed, acqe_link); 3234 phba->sli4_hba.link_state.duplex = 3235 bf_get(lpfc_acqe_link_duplex, acqe_link); 3236 phba->sli4_hba.link_state.status = 3237 bf_get(lpfc_acqe_link_status, acqe_link); 3238 phba->sli4_hba.link_state.type = 3239 bf_get(lpfc_acqe_link_type, acqe_link); 3240 phba->sli4_hba.link_state.number = 3241 bf_get(lpfc_acqe_link_number, acqe_link); 3242 phba->sli4_hba.link_state.fault = 3243 bf_get(lpfc_acqe_link_fault, acqe_link); 3244 phba->sli4_hba.link_state.logical_speed = 3245 bf_get(lpfc_acqe_logical_link_speed, acqe_link); 3246 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3247 "2900 Async FC/FCoE Link event - Speed:%dGBit " 3248 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 3249 "Logical speed:%dMbps Fault:%d\n", 3250 phba->sli4_hba.link_state.speed, 3251 phba->sli4_hba.link_state.topology, 3252 phba->sli4_hba.link_state.status, 3253 phba->sli4_hba.link_state.type, 3254 phba->sli4_hba.link_state.number, 3255 phba->sli4_hba.link_state.logical_speed * 10, 3256 phba->sli4_hba.link_state.fault); 3257 /* 3258 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 3259 * topology info. Note: Optional for non FC-AL ports. 3260 */ 3261 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3262 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3263 if (rc == MBX_NOT_FINISHED) 3264 goto out_free_dmabuf; 3265 return; 3266 } 3267 /* 3268 * For FCoE Mode: fill in all the topology information we need and call 3269 * the READ_TOPOLOGY completion routine to continue without actually 3270 * sending the READ_TOPOLOGY mailbox command to the port. 3271 */ 3272 /* Parse and translate status field */ 3273 mb = &pmb->u.mb; 3274 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3275 3276 /* Parse and translate link attention fields */ 3277 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3278 la->eventTag = acqe_link->event_tag; 3279 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 3280 bf_set(lpfc_mbx_read_top_link_spd, la, 3281 lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); 3282 3283 /* Fake the the following irrelvant fields */ 3284 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 3285 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 3286 bf_set(lpfc_mbx_read_top_il, la, 0); 3287 bf_set(lpfc_mbx_read_top_pb, la, 0); 3288 bf_set(lpfc_mbx_read_top_fa, la, 0); 3289 bf_set(lpfc_mbx_read_top_mm, la, 0); 3290 3291 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3292 lpfc_mbx_cmpl_read_topology(phba, pmb); 3293 3294 return; 3295 3296out_free_dmabuf: 3297 kfree(mp); 3298out_free_pmb: 3299 mempool_free(pmb, phba->mbox_mem_pool); 3300} 3301 3302/** 3303 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 3304 * @phba: pointer to lpfc hba data structure. 3305 * @acqe_fc: pointer to the async fc completion queue entry. 3306 * 3307 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 3308 * that the event was received and then issue a read_topology mailbox command so 3309 * that the rest of the driver will treat it the same as SLI3. 3310 **/ 3311static void 3312lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 3313{ 3314 struct lpfc_dmabuf *mp; 3315 LPFC_MBOXQ_t *pmb; 3316 int rc; 3317 3318 if (bf_get(lpfc_trailer_type, acqe_fc) != 3319 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 3320 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3321 "2895 Non FC link Event detected.(%d)\n", 3322 bf_get(lpfc_trailer_type, acqe_fc)); 3323 return; 3324 } 3325 /* Keep the link status for extra SLI4 state machine reference */ 3326 phba->sli4_hba.link_state.speed = 3327 bf_get(lpfc_acqe_fc_la_speed, acqe_fc); 3328 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 3329 phba->sli4_hba.link_state.topology = 3330 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 3331 phba->sli4_hba.link_state.status = 3332 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 3333 phba->sli4_hba.link_state.type = 3334 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 3335 phba->sli4_hba.link_state.number = 3336 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 3337 phba->sli4_hba.link_state.fault = 3338 bf_get(lpfc_acqe_link_fault, acqe_fc); 3339 phba->sli4_hba.link_state.logical_speed = 3340 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc); 3341 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3342 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 3343 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 3344 "%dMbps Fault:%d\n", 3345 phba->sli4_hba.link_state.speed, 3346 phba->sli4_hba.link_state.topology, 3347 phba->sli4_hba.link_state.status, 3348 phba->sli4_hba.link_state.type, 3349 phba->sli4_hba.link_state.number, 3350 phba->sli4_hba.link_state.logical_speed * 10, 3351 phba->sli4_hba.link_state.fault); 3352 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3353 if (!pmb) { 3354 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3355 "2897 The mboxq allocation failed\n"); 3356 return; 3357 } 3358 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3359 if (!mp) { 3360 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3361 "2898 The lpfc_dmabuf allocation failed\n"); 3362 goto out_free_pmb; 3363 } 3364 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3365 if (!mp->virt) { 3366 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3367 "2899 The mbuf allocation failed\n"); 3368 goto out_free_dmabuf; 3369 } 3370 3371 /* Cleanup any outstanding ELS commands */ 3372 lpfc_els_flush_all_cmd(phba); 3373 3374 /* Block ELS IOCBs until we have done process link event */ 3375 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3376 3377 /* Update link event statistics */ 3378 phba->sli.slistat.link_event++; 3379 3380 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3381 lpfc_read_topology(phba, pmb, mp); 3382 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3383 pmb->vport = phba->pport; 3384 3385 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3386 if (rc == MBX_NOT_FINISHED) 3387 goto out_free_dmabuf; 3388 return; 3389 3390out_free_dmabuf: 3391 kfree(mp); 3392out_free_pmb: 3393 mempool_free(pmb, phba->mbox_mem_pool); 3394} 3395 3396/** 3397 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 3398 * @phba: pointer to lpfc hba data structure. 3399 * @acqe_fc: pointer to the async SLI completion queue entry. 3400 * 3401 * This routine is to handle the SLI4 asynchronous SLI events. 3402 **/ 3403static void 3404lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 3405{ 3406 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3407 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 3408 "x%08x SLI Event Type:%d", 3409 acqe_sli->event_data1, acqe_sli->event_data2, 3410 bf_get(lpfc_trailer_type, acqe_sli)); 3411 return; 3412} 3413 3414/** 3415 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3416 * @vport: pointer to vport data structure. 3417 * 3418 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3419 * response to a CVL event. 3420 * 3421 * Return the pointer to the ndlp with the vport if successful, otherwise 3422 * return NULL. 3423 **/ 3424static struct lpfc_nodelist * 3425lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3426{ 3427 struct lpfc_nodelist *ndlp; 3428 struct Scsi_Host *shost; 3429 struct lpfc_hba *phba; 3430 3431 if (!vport) 3432 return NULL; 3433 phba = vport->phba; 3434 if (!phba) 3435 return NULL; 3436 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3437 if (!ndlp) { 3438 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3439 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3440 if (!ndlp) 3441 return 0; 3442 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3443 /* Set the node type */ 3444 ndlp->nlp_type |= NLP_FABRIC; 3445 /* Put ndlp onto node list */ 3446 lpfc_enqueue_node(vport, ndlp); 3447 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3448 /* re-setup ndlp without removing from node list */ 3449 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3450 if (!ndlp) 3451 return 0; 3452 } 3453 if ((phba->pport->port_state < LPFC_FLOGI) && 3454 (phba->pport->port_state != LPFC_VPORT_FAILED)) 3455 return NULL; 3456 /* If virtual link is not yet instantiated ignore CVL */ 3457 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 3458 && (vport->port_state != LPFC_VPORT_FAILED)) 3459 return NULL; 3460 shost = lpfc_shost_from_vport(vport); 3461 if (!shost) 3462 return NULL; 3463 lpfc_linkdown_port(vport); 3464 lpfc_cleanup_pending_mbox(vport); 3465 spin_lock_irq(shost->host_lock); 3466 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3467 spin_unlock_irq(shost->host_lock); 3468 3469 return ndlp; 3470} 3471 3472/** 3473 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3474 * @vport: pointer to lpfc hba data structure. 3475 * 3476 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3477 * response to a FCF dead event. 3478 **/ 3479static void 3480lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3481{ 3482 struct lpfc_vport **vports; 3483 int i; 3484 3485 vports = lpfc_create_vport_work_array(phba); 3486 if (vports) 3487 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3488 lpfc_sli4_perform_vport_cvl(vports[i]); 3489 lpfc_destroy_vport_work_array(phba, vports); 3490} 3491 3492/** 3493 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 3494 * @phba: pointer to lpfc hba data structure. 3495 * @acqe_link: pointer to the async fcoe completion queue entry. 3496 * 3497 * This routine is to handle the SLI4 asynchronous fcoe event. 3498 **/ 3499static void 3500lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 3501 struct lpfc_acqe_fip *acqe_fip) 3502{ 3503 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 3504 int rc; 3505 struct lpfc_vport *vport; 3506 struct lpfc_nodelist *ndlp; 3507 struct Scsi_Host *shost; 3508 int active_vlink_present; 3509 struct lpfc_vport **vports; 3510 int i; 3511 3512 phba->fc_eventTag = acqe_fip->event_tag; 3513 phba->fcoe_eventtag = acqe_fip->event_tag; 3514 switch (event_type) { 3515 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 3516 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 3517 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 3518 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3519 LOG_DISCOVERY, 3520 "2546 New FCF event, evt_tag:x%x, " 3521 "index:x%x\n", 3522 acqe_fip->event_tag, 3523 acqe_fip->index); 3524 else 3525 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 3526 LOG_DISCOVERY, 3527 "2788 FCF param modified event, " 3528 "evt_tag:x%x, index:x%x\n", 3529 acqe_fip->event_tag, 3530 acqe_fip->index); 3531 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3532 /* 3533 * During period of FCF discovery, read the FCF 3534 * table record indexed by the event to update 3535 * FCF roundrobin failover eligible FCF bmask. 3536 */ 3537 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3538 LOG_DISCOVERY, 3539 "2779 Read FCF (x%x) for updating " 3540 "roundrobin FCF failover bmask\n", 3541 acqe_fip->index); 3542 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 3543 } 3544 3545 /* If the FCF discovery is in progress, do nothing. */ 3546 spin_lock_irq(&phba->hbalock); 3547 if (phba->hba_flag & FCF_TS_INPROG) { 3548 spin_unlock_irq(&phba->hbalock); 3549 break; 3550 } 3551 /* If fast FCF failover rescan event is pending, do nothing */ 3552 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 3553 spin_unlock_irq(&phba->hbalock); 3554 break; 3555 } 3556 3557 /* If the FCF has been in discovered state, do nothing. */ 3558 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 3559 spin_unlock_irq(&phba->hbalock); 3560 break; 3561 } 3562 spin_unlock_irq(&phba->hbalock); 3563 3564 /* Otherwise, scan the entire FCF table and re-discover SAN */ 3565 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3566 "2770 Start FCF table scan per async FCF " 3567 "event, evt_tag:x%x, index:x%x\n", 3568 acqe_fip->event_tag, acqe_fip->index); 3569 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3570 LPFC_FCOE_FCF_GET_FIRST); 3571 if (rc) 3572 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3573 "2547 Issue FCF scan read FCF mailbox " 3574 "command failed (x%x)\n", rc); 3575 break; 3576 3577 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 3578 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3579 "2548 FCF Table full count 0x%x tag 0x%x\n", 3580 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 3581 acqe_fip->event_tag); 3582 break; 3583 3584 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 3585 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3586 "2549 FCF (x%x) disconnected from network, " 3587 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 3588 /* 3589 * If we are in the middle of FCF failover process, clear 3590 * the corresponding FCF bit in the roundrobin bitmap. 3591 */ 3592 spin_lock_irq(&phba->hbalock); 3593 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3594 spin_unlock_irq(&phba->hbalock); 3595 /* Update FLOGI FCF failover eligible FCF bmask */ 3596 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 3597 break; 3598 } 3599 spin_unlock_irq(&phba->hbalock); 3600 3601 /* If the event is not for currently used fcf do nothing */ 3602 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 3603 break; 3604 3605 /* 3606 * Otherwise, request the port to rediscover the entire FCF 3607 * table for a fast recovery from case that the current FCF 3608 * is no longer valid as we are not in the middle of FCF 3609 * failover process already. 3610 */ 3611 spin_lock_irq(&phba->hbalock); 3612 /* Mark the fast failover process in progress */ 3613 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 3614 spin_unlock_irq(&phba->hbalock); 3615 3616 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3617 "2771 Start FCF fast failover process due to " 3618 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 3619 "\n", acqe_fip->event_tag, acqe_fip->index); 3620 rc = lpfc_sli4_redisc_fcf_table(phba); 3621 if (rc) { 3622 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3623 LOG_DISCOVERY, 3624 "2772 Issue FCF rediscover mabilbox " 3625 "command failed, fail through to FCF " 3626 "dead event\n"); 3627 spin_lock_irq(&phba->hbalock); 3628 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 3629 spin_unlock_irq(&phba->hbalock); 3630 /* 3631 * Last resort will fail over by treating this 3632 * as a link down to FCF registration. 3633 */ 3634 lpfc_sli4_fcf_dead_failthrough(phba); 3635 } else { 3636 /* Reset FCF roundrobin bmask for new discovery */ 3637 memset(phba->fcf.fcf_rr_bmask, 0, 3638 sizeof(*phba->fcf.fcf_rr_bmask)); 3639 /* 3640 * Handling fast FCF failover to a DEAD FCF event is 3641 * considered equalivant to receiving CVL to all vports. 3642 */ 3643 lpfc_sli4_perform_all_vport_cvl(phba); 3644 } 3645 break; 3646 case LPFC_FIP_EVENT_TYPE_CVL: 3647 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3648 "2718 Clear Virtual Link Received for VPI 0x%x" 3649 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 3650 3651 vport = lpfc_find_vport_by_vpid(phba, 3652 acqe_fip->index); 3653 ndlp = lpfc_sli4_perform_vport_cvl(vport); 3654 if (!ndlp) 3655 break; 3656 active_vlink_present = 0; 3657 3658 vports = lpfc_create_vport_work_array(phba); 3659 if (vports) { 3660 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 3661 i++) { 3662 if ((!(vports[i]->fc_flag & 3663 FC_VPORT_CVL_RCVD)) && 3664 (vports[i]->port_state > LPFC_FDISC)) { 3665 active_vlink_present = 1; 3666 break; 3667 } 3668 } 3669 lpfc_destroy_vport_work_array(phba, vports); 3670 } 3671 3672 if (active_vlink_present) { 3673 /* 3674 * If there are other active VLinks present, 3675 * re-instantiate the Vlink using FDISC. 3676 */ 3677 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3678 shost = lpfc_shost_from_vport(vport); 3679 spin_lock_irq(shost->host_lock); 3680 ndlp->nlp_flag |= NLP_DELAY_TMO; 3681 spin_unlock_irq(shost->host_lock); 3682 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 3683 vport->port_state = LPFC_FDISC; 3684 } else { 3685 /* 3686 * Otherwise, we request port to rediscover 3687 * the entire FCF table for a fast recovery 3688 * from possible case that the current FCF 3689 * is no longer valid if we are not already 3690 * in the FCF failover process. 3691 */ 3692 spin_lock_irq(&phba->hbalock); 3693 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3694 spin_unlock_irq(&phba->hbalock); 3695 break; 3696 } 3697 /* Mark the fast failover process in progress */ 3698 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 3699 spin_unlock_irq(&phba->hbalock); 3700 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3701 LOG_DISCOVERY, 3702 "2773 Start FCF failover per CVL, " 3703 "evt_tag:x%x\n", acqe_fip->event_tag); 3704 rc = lpfc_sli4_redisc_fcf_table(phba); 3705 if (rc) { 3706 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3707 LOG_DISCOVERY, 3708 "2774 Issue FCF rediscover " 3709 "mabilbox command failed, " 3710 "through to CVL event\n"); 3711 spin_lock_irq(&phba->hbalock); 3712 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 3713 spin_unlock_irq(&phba->hbalock); 3714 /* 3715 * Last resort will be re-try on the 3716 * the current registered FCF entry. 3717 */ 3718 lpfc_retry_pport_discovery(phba); 3719 } else 3720 /* 3721 * Reset FCF roundrobin bmask for new 3722 * discovery. 3723 */ 3724 memset(phba->fcf.fcf_rr_bmask, 0, 3725 sizeof(*phba->fcf.fcf_rr_bmask)); 3726 } 3727 break; 3728 default: 3729 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3730 "0288 Unknown FCoE event type 0x%x event tag " 3731 "0x%x\n", event_type, acqe_fip->event_tag); 3732 break; 3733 } 3734} 3735 3736/** 3737 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 3738 * @phba: pointer to lpfc hba data structure. 3739 * @acqe_link: pointer to the async dcbx completion queue entry. 3740 * 3741 * This routine is to handle the SLI4 asynchronous dcbx event. 3742 **/ 3743static void 3744lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 3745 struct lpfc_acqe_dcbx *acqe_dcbx) 3746{ 3747 phba->fc_eventTag = acqe_dcbx->event_tag; 3748 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3749 "0290 The SLI4 DCBX asynchronous event is not " 3750 "handled yet\n"); 3751} 3752 3753/** 3754 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 3755 * @phba: pointer to lpfc hba data structure. 3756 * @acqe_link: pointer to the async grp5 completion queue entry. 3757 * 3758 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 3759 * is an asynchronous notified of a logical link speed change. The Port 3760 * reports the logical link speed in units of 10Mbps. 3761 **/ 3762static void 3763lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 3764 struct lpfc_acqe_grp5 *acqe_grp5) 3765{ 3766 uint16_t prev_ll_spd; 3767 3768 phba->fc_eventTag = acqe_grp5->event_tag; 3769 phba->fcoe_eventtag = acqe_grp5->event_tag; 3770 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 3771 phba->sli4_hba.link_state.logical_speed = 3772 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); 3773 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3774 "2789 GRP5 Async Event: Updating logical link speed " 3775 "from %dMbps to %dMbps\n", (prev_ll_spd * 10), 3776 (phba->sli4_hba.link_state.logical_speed*10)); 3777} 3778 3779/** 3780 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3781 * @phba: pointer to lpfc hba data structure. 3782 * 3783 * This routine is invoked by the worker thread to process all the pending 3784 * SLI4 asynchronous events. 3785 **/ 3786void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3787{ 3788 struct lpfc_cq_event *cq_event; 3789 3790 /* First, declare the async event has been handled */ 3791 spin_lock_irq(&phba->hbalock); 3792 phba->hba_flag &= ~ASYNC_EVENT; 3793 spin_unlock_irq(&phba->hbalock); 3794 /* Now, handle all the async events */ 3795 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3796 /* Get the first event from the head of the event queue */ 3797 spin_lock_irq(&phba->hbalock); 3798 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3799 cq_event, struct lpfc_cq_event, list); 3800 spin_unlock_irq(&phba->hbalock); 3801 /* Process the asynchronous event */ 3802 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3803 case LPFC_TRAILER_CODE_LINK: 3804 lpfc_sli4_async_link_evt(phba, 3805 &cq_event->cqe.acqe_link); 3806 break; 3807 case LPFC_TRAILER_CODE_FCOE: 3808 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 3809 break; 3810 case LPFC_TRAILER_CODE_DCBX: 3811 lpfc_sli4_async_dcbx_evt(phba, 3812 &cq_event->cqe.acqe_dcbx); 3813 break; 3814 case LPFC_TRAILER_CODE_GRP5: 3815 lpfc_sli4_async_grp5_evt(phba, 3816 &cq_event->cqe.acqe_grp5); 3817 break; 3818 case LPFC_TRAILER_CODE_FC: 3819 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 3820 break; 3821 case LPFC_TRAILER_CODE_SLI: 3822 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 3823 break; 3824 default: 3825 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3826 "1804 Invalid asynchrous event code: " 3827 "x%x\n", bf_get(lpfc_trailer_code, 3828 &cq_event->cqe.mcqe_cmpl)); 3829 break; 3830 } 3831 /* Free the completion event processed to the free pool */ 3832 lpfc_sli4_cq_event_release(phba, cq_event); 3833 } 3834} 3835 3836/** 3837 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 3838 * @phba: pointer to lpfc hba data structure. 3839 * 3840 * This routine is invoked by the worker thread to process FCF table 3841 * rediscovery pending completion event. 3842 **/ 3843void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 3844{ 3845 int rc; 3846 3847 spin_lock_irq(&phba->hbalock); 3848 /* Clear FCF rediscovery timeout event */ 3849 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 3850 /* Clear driver fast failover FCF record flag */ 3851 phba->fcf.failover_rec.flag = 0; 3852 /* Set state for FCF fast failover */ 3853 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 3854 spin_unlock_irq(&phba->hbalock); 3855 3856 /* Scan FCF table from the first entry to re-discover SAN */ 3857 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3858 "2777 Start post-quiescent FCF table scan\n"); 3859 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 3860 if (rc) 3861 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3862 "2747 Issue FCF scan read FCF mailbox " 3863 "command failed 0x%x\n", rc); 3864} 3865 3866/** 3867 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3868 * @phba: pointer to lpfc hba data structure. 3869 * @dev_grp: The HBA PCI-Device group number. 3870 * 3871 * This routine is invoked to set up the per HBA PCI-Device group function 3872 * API jump table entries. 3873 * 3874 * Return: 0 if success, otherwise -ENODEV 3875 **/ 3876int 3877lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3878{ 3879 int rc; 3880 3881 /* Set up lpfc PCI-device group */ 3882 phba->pci_dev_grp = dev_grp; 3883 3884 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3885 if (dev_grp == LPFC_PCI_DEV_OC) 3886 phba->sli_rev = LPFC_SLI_REV4; 3887 3888 /* Set up device INIT API function jump table */ 3889 rc = lpfc_init_api_table_setup(phba, dev_grp); 3890 if (rc) 3891 return -ENODEV; 3892 /* Set up SCSI API function jump table */ 3893 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3894 if (rc) 3895 return -ENODEV; 3896 /* Set up SLI API function jump table */ 3897 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3898 if (rc) 3899 return -ENODEV; 3900 /* Set up MBOX API function jump table */ 3901 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3902 if (rc) 3903 return -ENODEV; 3904 3905 return 0; 3906} 3907 3908/** 3909 * lpfc_log_intr_mode - Log the active interrupt mode 3910 * @phba: pointer to lpfc hba data structure. 3911 * @intr_mode: active interrupt mode adopted. 3912 * 3913 * This routine it invoked to log the currently used active interrupt mode 3914 * to the device. 3915 **/ 3916static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3917{ 3918 switch (intr_mode) { 3919 case 0: 3920 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3921 "0470 Enable INTx interrupt mode.\n"); 3922 break; 3923 case 1: 3924 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3925 "0481 Enabled MSI interrupt mode.\n"); 3926 break; 3927 case 2: 3928 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3929 "0480 Enabled MSI-X interrupt mode.\n"); 3930 break; 3931 default: 3932 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3933 "0482 Illegal interrupt mode.\n"); 3934 break; 3935 } 3936 return; 3937} 3938 3939/** 3940 * lpfc_enable_pci_dev - Enable a generic PCI device. 3941 * @phba: pointer to lpfc hba data structure. 3942 * 3943 * This routine is invoked to enable the PCI device that is common to all 3944 * PCI devices. 3945 * 3946 * Return codes 3947 * 0 - successful 3948 * other values - error 3949 **/ 3950static int 3951lpfc_enable_pci_dev(struct lpfc_hba *phba) 3952{ 3953 struct pci_dev *pdev; 3954 int bars; 3955 3956 /* Obtain PCI device reference */ 3957 if (!phba->pcidev) 3958 goto out_error; 3959 else 3960 pdev = phba->pcidev; 3961 /* Select PCI BARs */ 3962 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3963 /* Enable PCI device */ 3964 if (pci_enable_device_mem(pdev)) 3965 goto out_error; 3966 /* Request PCI resource for the device */ 3967 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3968 goto out_disable_device; 3969 /* Set up device as PCI master and save state for EEH */ 3970 pci_set_master(pdev); 3971 pci_try_set_mwi(pdev); 3972 pci_save_state(pdev); 3973 3974 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 3975 if (pci_find_capability(pdev, PCI_CAP_ID_EXP)) 3976 pdev->needs_freset = 1; 3977 3978 return 0; 3979 3980out_disable_device: 3981 pci_disable_device(pdev); 3982out_error: 3983 return -ENODEV; 3984} 3985 3986/** 3987 * lpfc_disable_pci_dev - Disable a generic PCI device. 3988 * @phba: pointer to lpfc hba data structure. 3989 * 3990 * This routine is invoked to disable the PCI device that is common to all 3991 * PCI devices. 3992 **/ 3993static void 3994lpfc_disable_pci_dev(struct lpfc_hba *phba) 3995{ 3996 struct pci_dev *pdev; 3997 int bars; 3998 3999 /* Obtain PCI device reference */ 4000 if (!phba->pcidev) 4001 return; 4002 else 4003 pdev = phba->pcidev; 4004 /* Select PCI BARs */ 4005 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4006 /* Release PCI resource and disable PCI device */ 4007 pci_release_selected_regions(pdev, bars); 4008 pci_disable_device(pdev); 4009 /* Null out PCI private reference to driver */ 4010 pci_set_drvdata(pdev, NULL); 4011 4012 return; 4013} 4014 4015/** 4016 * lpfc_reset_hba - Reset a hba 4017 * @phba: pointer to lpfc hba data structure. 4018 * 4019 * This routine is invoked to reset a hba device. It brings the HBA 4020 * offline, performs a board restart, and then brings the board back 4021 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 4022 * on outstanding mailbox commands. 4023 **/ 4024void 4025lpfc_reset_hba(struct lpfc_hba *phba) 4026{ 4027 /* If resets are disabled then set error state and return. */ 4028 if (!phba->cfg_enable_hba_reset) { 4029 phba->link_state = LPFC_HBA_ERROR; 4030 return; 4031 } 4032 lpfc_offline_prep(phba); 4033 lpfc_offline(phba); 4034 lpfc_sli_brdrestart(phba); 4035 lpfc_online(phba); 4036 lpfc_unblock_mgmt_io(phba); 4037} 4038 4039/** 4040 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 4041 * @phba: pointer to lpfc hba data structure. 4042 * @nr_vfn: number of virtual functions to be enabled. 4043 * 4044 * This function enables the PCI SR-IOV virtual functions to a physical 4045 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4046 * enable the number of virtual functions to the physical function. As 4047 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4048 * API call does not considered as an error condition for most of the device. 4049 **/ 4050int 4051lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 4052{ 4053 struct pci_dev *pdev = phba->pcidev; 4054 int rc; 4055 4056 rc = pci_enable_sriov(pdev, nr_vfn); 4057 if (rc) { 4058 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4059 "2806 Failed to enable sriov on this device " 4060 "with vfn number nr_vf:%d, rc:%d\n", 4061 nr_vfn, rc); 4062 } else 4063 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4064 "2807 Successful enable sriov on this device " 4065 "with vfn number nr_vf:%d\n", nr_vfn); 4066 return rc; 4067} 4068 4069/** 4070 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 4071 * @phba: pointer to lpfc hba data structure. 4072 * 4073 * This routine is invoked to set up the driver internal resources specific to 4074 * support the SLI-3 HBA device it attached to. 4075 * 4076 * Return codes 4077 * 0 - successful 4078 * other values - error 4079 **/ 4080static int 4081lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 4082{ 4083 struct lpfc_sli *psli; 4084 int rc; 4085 4086 /* 4087 * Initialize timers used by driver 4088 */ 4089 4090 /* Heartbeat timer */ 4091 init_timer(&phba->hb_tmofunc); 4092 phba->hb_tmofunc.function = lpfc_hb_timeout; 4093 phba->hb_tmofunc.data = (unsigned long)phba; 4094 4095 psli = &phba->sli; 4096 /* MBOX heartbeat timer */ 4097 init_timer(&psli->mbox_tmo); 4098 psli->mbox_tmo.function = lpfc_mbox_timeout; 4099 psli->mbox_tmo.data = (unsigned long) phba; 4100 /* FCP polling mode timer */ 4101 init_timer(&phba->fcp_poll_timer); 4102 phba->fcp_poll_timer.function = lpfc_poll_timeout; 4103 phba->fcp_poll_timer.data = (unsigned long) phba; 4104 /* Fabric block timer */ 4105 init_timer(&phba->fabric_block_timer); 4106 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4107 phba->fabric_block_timer.data = (unsigned long) phba; 4108 /* EA polling mode timer */ 4109 init_timer(&phba->eratt_poll); 4110 phba->eratt_poll.function = lpfc_poll_eratt; 4111 phba->eratt_poll.data = (unsigned long) phba; 4112 4113 /* Host attention work mask setup */ 4114 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 4115 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 4116 4117 /* Get all the module params for configuring this host */ 4118 lpfc_get_cfgparam(phba); 4119 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 4120 phba->menlo_flag |= HBA_MENLO_SUPPORT; 4121 /* check for menlo minimum sg count */ 4122 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 4123 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 4124 } 4125 4126 /* 4127 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4128 * used to create the sg_dma_buf_pool must be dynamically calculated. 4129 * 2 segments are added since the IOCB needs a command and response bde. 4130 */ 4131 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4132 sizeof(struct fcp_rsp) + 4133 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 4134 4135 if (phba->cfg_enable_bg) { 4136 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 4137 phba->cfg_sg_dma_buf_size += 4138 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 4139 } 4140 4141 /* Also reinitialize the host templates with new values. */ 4142 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4143 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4144 4145 phba->max_vpi = LPFC_MAX_VPI; 4146 /* This will be set to correct value after config_port mbox */ 4147 phba->max_vports = 0; 4148 4149 /* 4150 * Initialize the SLI Layer to run with lpfc HBAs. 4151 */ 4152 lpfc_sli_setup(phba); 4153 lpfc_sli_queue_setup(phba); 4154 4155 /* Allocate device driver memory */ 4156 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 4157 return -ENOMEM; 4158 4159 /* 4160 * Enable sr-iov virtual functions if supported and configured 4161 * through the module parameter. 4162 */ 4163 if (phba->cfg_sriov_nr_virtfn > 0) { 4164 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4165 phba->cfg_sriov_nr_virtfn); 4166 if (rc) { 4167 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4168 "2808 Requested number of SR-IOV " 4169 "virtual functions (%d) is not " 4170 "supported\n", 4171 phba->cfg_sriov_nr_virtfn); 4172 phba->cfg_sriov_nr_virtfn = 0; 4173 } 4174 } 4175 4176 return 0; 4177} 4178 4179/** 4180 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 4181 * @phba: pointer to lpfc hba data structure. 4182 * 4183 * This routine is invoked to unset the driver internal resources set up 4184 * specific for supporting the SLI-3 HBA device it attached to. 4185 **/ 4186static void 4187lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 4188{ 4189 /* Free device driver memory allocated */ 4190 lpfc_mem_free_all(phba); 4191 4192 return; 4193} 4194 4195/** 4196 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 4197 * @phba: pointer to lpfc hba data structure. 4198 * 4199 * This routine is invoked to set up the driver internal resources specific to 4200 * support the SLI-4 HBA device it attached to. 4201 * 4202 * Return codes 4203 * 0 - successful 4204 * other values - error 4205 **/ 4206static int 4207lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 4208{ 4209 struct lpfc_sli *psli; 4210 LPFC_MBOXQ_t *mboxq; 4211 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 4212 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 4213 struct lpfc_mqe *mqe; 4214 int longs, sli_family; 4215 4216 /* Before proceed, wait for POST done and device ready */ 4217 rc = lpfc_sli4_post_status_check(phba); 4218 if (rc) 4219 return -ENODEV; 4220 4221 /* 4222 * Initialize timers used by driver 4223 */ 4224 4225 /* Heartbeat timer */ 4226 init_timer(&phba->hb_tmofunc); 4227 phba->hb_tmofunc.function = lpfc_hb_timeout; 4228 phba->hb_tmofunc.data = (unsigned long)phba; 4229 init_timer(&phba->rrq_tmr); 4230 phba->rrq_tmr.function = lpfc_rrq_timeout; 4231 phba->rrq_tmr.data = (unsigned long)phba; 4232 4233 psli = &phba->sli; 4234 /* MBOX heartbeat timer */ 4235 init_timer(&psli->mbox_tmo); 4236 psli->mbox_tmo.function = lpfc_mbox_timeout; 4237 psli->mbox_tmo.data = (unsigned long) phba; 4238 /* Fabric block timer */ 4239 init_timer(&phba->fabric_block_timer); 4240 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4241 phba->fabric_block_timer.data = (unsigned long) phba; 4242 /* EA polling mode timer */ 4243 init_timer(&phba->eratt_poll); 4244 phba->eratt_poll.function = lpfc_poll_eratt; 4245 phba->eratt_poll.data = (unsigned long) phba; 4246 /* FCF rediscover timer */ 4247 init_timer(&phba->fcf.redisc_wait); 4248 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4249 phba->fcf.redisc_wait.data = (unsigned long)phba; 4250 4251 /* 4252 * Control structure for handling external multi-buffer mailbox 4253 * command pass-through. 4254 */ 4255 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 4256 sizeof(struct lpfc_mbox_ext_buf_ctx)); 4257 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 4258 4259 /* 4260 * We need to do a READ_CONFIG mailbox command here before 4261 * calling lpfc_get_cfgparam. For VFs this will report the 4262 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 4263 * All of the resources allocated 4264 * for this Port are tied to these values. 4265 */ 4266 /* Get all the module params for configuring this host */ 4267 lpfc_get_cfgparam(phba); 4268 phba->max_vpi = LPFC_MAX_VPI; 4269 /* This will be set to correct value after the read_config mbox */ 4270 phba->max_vports = 0; 4271 4272 /* Program the default value of vlan_id and fc_map */ 4273 phba->valid_vlan = 0; 4274 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4275 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4276 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4277 4278 /* 4279 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4280 * used to create the sg_dma_buf_pool must be dynamically calculated. 4281 * 2 segments are added since the IOCB needs a command and response bde. 4282 * To insure that the scsi sgl does not cross a 4k page boundary only 4283 * sgl sizes of must be a power of 2. 4284 */ 4285 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 4286 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge))); 4287 4288 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf); 4289 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4290 switch (sli_family) { 4291 case LPFC_SLI_INTF_FAMILY_BE2: 4292 case LPFC_SLI_INTF_FAMILY_BE3: 4293 /* There is a single hint for BE - 2 pages per BPL. */ 4294 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) == 4295 LPFC_SLI_INTF_SLI_HINT1_1) 4296 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4297 break; 4298 case LPFC_SLI_INTF_FAMILY_LNCR_A0: 4299 case LPFC_SLI_INTF_FAMILY_LNCR_B0: 4300 default: 4301 break; 4302 } 4303 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4304 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4305 dma_buf_size = dma_buf_size << 1) 4306 ; 4307 if (dma_buf_size == max_buf_size) 4308 phba->cfg_sg_seg_cnt = (dma_buf_size - 4309 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4310 (2 * sizeof(struct sli4_sge))) / 4311 sizeof(struct sli4_sge); 4312 phba->cfg_sg_dma_buf_size = dma_buf_size; 4313 4314 /* Initialize buffer queue management fields */ 4315 hbq_count = lpfc_sli_hbq_count(); 4316 for (i = 0; i < hbq_count; ++i) 4317 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4318 INIT_LIST_HEAD(&phba->rb_pend_list); 4319 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4320 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4321 4322 /* 4323 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4324 */ 4325 /* Initialize the Abort scsi buffer list used by driver */ 4326 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4327 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4328 /* This abort list used by worker thread */ 4329 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4330 4331 /* 4332 * Initialize driver internal slow-path work queues 4333 */ 4334 4335 /* Driver internel slow-path CQ Event pool */ 4336 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4337 /* Response IOCB work queue list */ 4338 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4339 /* Asynchronous event CQ Event work queue list */ 4340 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4341 /* Fast-path XRI aborted CQ Event work queue list */ 4342 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4343 /* Slow-path XRI aborted CQ Event work queue list */ 4344 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4345 /* Receive queue CQ Event work queue list */ 4346 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4347 4348 /* Initialize extent block lists. */ 4349 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 4350 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 4351 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 4352 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 4353 4354 /* Initialize the driver internal SLI layer lists. */ 4355 lpfc_sli_setup(phba); 4356 lpfc_sli_queue_setup(phba); 4357 4358 /* Allocate device driver memory */ 4359 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4360 if (rc) 4361 return -ENOMEM; 4362 4363 /* IF Type 2 ports get initialized now. */ 4364 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4365 LPFC_SLI_INTF_IF_TYPE_2) { 4366 rc = lpfc_pci_function_reset(phba); 4367 if (unlikely(rc)) 4368 return -ENODEV; 4369 } 4370 4371 /* Create the bootstrap mailbox command */ 4372 rc = lpfc_create_bootstrap_mbox(phba); 4373 if (unlikely(rc)) 4374 goto out_free_mem; 4375 4376 /* Set up the host's endian order with the device. */ 4377 rc = lpfc_setup_endian_order(phba); 4378 if (unlikely(rc)) 4379 goto out_free_bsmbx; 4380 4381 /* Set up the hba's configuration parameters. */ 4382 rc = lpfc_sli4_read_config(phba); 4383 if (unlikely(rc)) 4384 goto out_free_bsmbx; 4385 4386 /* IF Type 0 ports get initialized now. */ 4387 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4388 LPFC_SLI_INTF_IF_TYPE_0) { 4389 rc = lpfc_pci_function_reset(phba); 4390 if (unlikely(rc)) 4391 goto out_free_bsmbx; 4392 } 4393 4394 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4395 GFP_KERNEL); 4396 if (!mboxq) { 4397 rc = -ENOMEM; 4398 goto out_free_bsmbx; 4399 } 4400 4401 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 4402 lpfc_supported_pages(mboxq); 4403 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4404 if (!rc) { 4405 mqe = &mboxq->u.mqe; 4406 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4407 LPFC_MAX_SUPPORTED_PAGES); 4408 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4409 switch (pn_page[i]) { 4410 case LPFC_SLI4_PARAMETERS: 4411 phba->sli4_hba.pc_sli4_params.supported = 1; 4412 break; 4413 default: 4414 break; 4415 } 4416 } 4417 /* Read the port's SLI4 Parameters capabilities if supported. */ 4418 if (phba->sli4_hba.pc_sli4_params.supported) 4419 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4420 if (rc) { 4421 mempool_free(mboxq, phba->mbox_mem_pool); 4422 rc = -EIO; 4423 goto out_free_bsmbx; 4424 } 4425 } 4426 /* 4427 * Get sli4 parameters that override parameters from Port capabilities. 4428 * If this call fails, it isn't critical unless the SLI4 parameters come 4429 * back in conflict. 4430 */ 4431 rc = lpfc_get_sli4_parameters(phba, mboxq); 4432 if (rc) { 4433 if (phba->sli4_hba.extents_in_use && 4434 phba->sli4_hba.rpi_hdrs_in_use) { 4435 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4436 "2999 Unsupported SLI4 Parameters " 4437 "Extents and RPI headers enabled.\n"); 4438 goto out_free_bsmbx; 4439 } 4440 } 4441 mempool_free(mboxq, phba->mbox_mem_pool); 4442 /* Create all the SLI4 queues */ 4443 rc = lpfc_sli4_queue_create(phba); 4444 if (rc) 4445 goto out_free_bsmbx; 4446 4447 /* Create driver internal CQE event pool */ 4448 rc = lpfc_sli4_cq_event_pool_create(phba); 4449 if (rc) 4450 goto out_destroy_queue; 4451 4452 /* Initialize and populate the iocb list per host */ 4453 rc = lpfc_init_sgl_list(phba); 4454 if (rc) { 4455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4456 "1400 Failed to initialize sgl list.\n"); 4457 goto out_destroy_cq_event_pool; 4458 } 4459 rc = lpfc_init_active_sgl_array(phba); 4460 if (rc) { 4461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4462 "1430 Failed to initialize sgl list.\n"); 4463 goto out_free_sgl_list; 4464 } 4465 rc = lpfc_sli4_init_rpi_hdrs(phba); 4466 if (rc) { 4467 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4468 "1432 Failed to initialize rpi headers.\n"); 4469 goto out_free_active_sgl; 4470 } 4471 4472 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 4473 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 4474 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 4475 GFP_KERNEL); 4476 if (!phba->fcf.fcf_rr_bmask) { 4477 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4478 "2759 Failed allocate memory for FCF round " 4479 "robin failover bmask\n"); 4480 rc = -ENOMEM; 4481 goto out_remove_rpi_hdrs; 4482 } 4483 4484 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 4485 phba->cfg_fcp_eq_count), GFP_KERNEL); 4486 if (!phba->sli4_hba.fcp_eq_hdl) { 4487 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4488 "2572 Failed allocate memory for fast-path " 4489 "per-EQ handle array\n"); 4490 rc = -ENOMEM; 4491 goto out_free_fcf_rr_bmask; 4492 } 4493 4494 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 4495 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 4496 if (!phba->sli4_hba.msix_entries) { 4497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4498 "2573 Failed allocate memory for msi-x " 4499 "interrupt vector entries\n"); 4500 rc = -ENOMEM; 4501 goto out_free_fcp_eq_hdl; 4502 } 4503 4504 /* 4505 * Enable sr-iov virtual functions if supported and configured 4506 * through the module parameter. 4507 */ 4508 if (phba->cfg_sriov_nr_virtfn > 0) { 4509 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4510 phba->cfg_sriov_nr_virtfn); 4511 if (rc) { 4512 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4513 "3020 Requested number of SR-IOV " 4514 "virtual functions (%d) is not " 4515 "supported\n", 4516 phba->cfg_sriov_nr_virtfn); 4517 phba->cfg_sriov_nr_virtfn = 0; 4518 } 4519 } 4520 4521 return 0; 4522 4523out_free_fcp_eq_hdl: 4524 kfree(phba->sli4_hba.fcp_eq_hdl); 4525out_free_fcf_rr_bmask: 4526 kfree(phba->fcf.fcf_rr_bmask); 4527out_remove_rpi_hdrs: 4528 lpfc_sli4_remove_rpi_hdrs(phba); 4529out_free_active_sgl: 4530 lpfc_free_active_sgl(phba); 4531out_free_sgl_list: 4532 lpfc_free_sgl_list(phba); 4533out_destroy_cq_event_pool: 4534 lpfc_sli4_cq_event_pool_destroy(phba); 4535out_destroy_queue: 4536 lpfc_sli4_queue_destroy(phba); 4537out_free_bsmbx: 4538 lpfc_destroy_bootstrap_mbox(phba); 4539out_free_mem: 4540 lpfc_mem_free(phba); 4541 return rc; 4542} 4543 4544/** 4545 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 4546 * @phba: pointer to lpfc hba data structure. 4547 * 4548 * This routine is invoked to unset the driver internal resources set up 4549 * specific for supporting the SLI-4 HBA device it attached to. 4550 **/ 4551static void 4552lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 4553{ 4554 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4555 4556 /* Free memory allocated for msi-x interrupt vector entries */ 4557 kfree(phba->sli4_hba.msix_entries); 4558 4559 /* Free memory allocated for fast-path work queue handles */ 4560 kfree(phba->sli4_hba.fcp_eq_hdl); 4561 4562 /* Free the allocated rpi headers. */ 4563 lpfc_sli4_remove_rpi_hdrs(phba); 4564 lpfc_sli4_remove_rpis(phba); 4565 4566 /* Free eligible FCF index bmask */ 4567 kfree(phba->fcf.fcf_rr_bmask); 4568 4569 /* Free the ELS sgl list */ 4570 lpfc_free_active_sgl(phba); 4571 lpfc_free_sgl_list(phba); 4572 4573 /* Free the SCSI sgl management array */ 4574 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4575 4576 /* Free the SLI4 queues */ 4577 lpfc_sli4_queue_destroy(phba); 4578 4579 /* Free the completion queue EQ event pool */ 4580 lpfc_sli4_cq_event_release_all(phba); 4581 lpfc_sli4_cq_event_pool_destroy(phba); 4582 4583 /* Release resource identifiers. */ 4584 lpfc_sli4_dealloc_resource_identifiers(phba); 4585 4586 /* Free the bsmbx region. */ 4587 lpfc_destroy_bootstrap_mbox(phba); 4588 4589 /* Free the SLI Layer memory with SLI4 HBAs */ 4590 lpfc_mem_free_all(phba); 4591 4592 /* Free the current connect table */ 4593 list_for_each_entry_safe(conn_entry, next_conn_entry, 4594 &phba->fcf_conn_rec_list, list) { 4595 list_del_init(&conn_entry->list); 4596 kfree(conn_entry); 4597 } 4598 4599 return; 4600} 4601 4602/** 4603 * lpfc_init_api_table_setup - Set up init api function jump table 4604 * @phba: The hba struct for which this call is being executed. 4605 * @dev_grp: The HBA PCI-Device group number. 4606 * 4607 * This routine sets up the device INIT interface API function jump table 4608 * in @phba struct. 4609 * 4610 * Returns: 0 - success, -ENODEV - failure. 4611 **/ 4612int 4613lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4614{ 4615 phba->lpfc_hba_init_link = lpfc_hba_init_link; 4616 phba->lpfc_hba_down_link = lpfc_hba_down_link; 4617 phba->lpfc_selective_reset = lpfc_selective_reset; 4618 switch (dev_grp) { 4619 case LPFC_PCI_DEV_LP: 4620 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 4621 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 4622 phba->lpfc_stop_port = lpfc_stop_port_s3; 4623 break; 4624 case LPFC_PCI_DEV_OC: 4625 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 4626 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 4627 phba->lpfc_stop_port = lpfc_stop_port_s4; 4628 break; 4629 default: 4630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4631 "1431 Invalid HBA PCI-device group: 0x%x\n", 4632 dev_grp); 4633 return -ENODEV; 4634 break; 4635 } 4636 return 0; 4637} 4638 4639/** 4640 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 4641 * @phba: pointer to lpfc hba data structure. 4642 * 4643 * This routine is invoked to set up the driver internal resources before the 4644 * device specific resource setup to support the HBA device it attached to. 4645 * 4646 * Return codes 4647 * 0 - successful 4648 * other values - error 4649 **/ 4650static int 4651lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 4652{ 4653 /* 4654 * Driver resources common to all SLI revisions 4655 */ 4656 atomic_set(&phba->fast_event_count, 0); 4657 spin_lock_init(&phba->hbalock); 4658 4659 /* Initialize ndlp management spinlock */ 4660 spin_lock_init(&phba->ndlp_lock); 4661 4662 INIT_LIST_HEAD(&phba->port_list); 4663 INIT_LIST_HEAD(&phba->work_list); 4664 init_waitqueue_head(&phba->wait_4_mlo_m_q); 4665 4666 /* Initialize the wait queue head for the kernel thread */ 4667 init_waitqueue_head(&phba->work_waitq); 4668 4669 /* Initialize the scsi buffer list used by driver for scsi IO */ 4670 spin_lock_init(&phba->scsi_buf_list_lock); 4671 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 4672 4673 /* Initialize the fabric iocb list */ 4674 INIT_LIST_HEAD(&phba->fabric_iocb_list); 4675 4676 /* Initialize list to save ELS buffers */ 4677 INIT_LIST_HEAD(&phba->elsbuf); 4678 4679 /* Initialize FCF connection rec list */ 4680 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 4681 4682 return 0; 4683} 4684 4685/** 4686 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 4687 * @phba: pointer to lpfc hba data structure. 4688 * 4689 * This routine is invoked to set up the driver internal resources after the 4690 * device specific resource setup to support the HBA device it attached to. 4691 * 4692 * Return codes 4693 * 0 - successful 4694 * other values - error 4695 **/ 4696static int 4697lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 4698{ 4699 int error; 4700 4701 /* Startup the kernel thread for this host adapter. */ 4702 phba->worker_thread = kthread_run(lpfc_do_work, phba, 4703 "lpfc_worker_%d", phba->brd_no); 4704 if (IS_ERR(phba->worker_thread)) { 4705 error = PTR_ERR(phba->worker_thread); 4706 return error; 4707 } 4708 4709 return 0; 4710} 4711 4712/** 4713 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 4714 * @phba: pointer to lpfc hba data structure. 4715 * 4716 * This routine is invoked to unset the driver internal resources set up after 4717 * the device specific resource setup for supporting the HBA device it 4718 * attached to. 4719 **/ 4720static void 4721lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 4722{ 4723 /* Stop kernel worker thread */ 4724 kthread_stop(phba->worker_thread); 4725} 4726 4727/** 4728 * lpfc_free_iocb_list - Free iocb list. 4729 * @phba: pointer to lpfc hba data structure. 4730 * 4731 * This routine is invoked to free the driver's IOCB list and memory. 4732 **/ 4733static void 4734lpfc_free_iocb_list(struct lpfc_hba *phba) 4735{ 4736 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 4737 4738 spin_lock_irq(&phba->hbalock); 4739 list_for_each_entry_safe(iocbq_entry, iocbq_next, 4740 &phba->lpfc_iocb_list, list) { 4741 list_del(&iocbq_entry->list); 4742 kfree(iocbq_entry); 4743 phba->total_iocbq_bufs--; 4744 } 4745 spin_unlock_irq(&phba->hbalock); 4746 4747 return; 4748} 4749 4750/** 4751 * lpfc_init_iocb_list - Allocate and initialize iocb list. 4752 * @phba: pointer to lpfc hba data structure. 4753 * 4754 * This routine is invoked to allocate and initizlize the driver's IOCB 4755 * list and set up the IOCB tag array accordingly. 4756 * 4757 * Return codes 4758 * 0 - successful 4759 * other values - error 4760 **/ 4761static int 4762lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 4763{ 4764 struct lpfc_iocbq *iocbq_entry = NULL; 4765 uint16_t iotag; 4766 int i; 4767 4768 /* Initialize and populate the iocb list per host. */ 4769 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 4770 for (i = 0; i < iocb_count; i++) { 4771 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 4772 if (iocbq_entry == NULL) { 4773 printk(KERN_ERR "%s: only allocated %d iocbs of " 4774 "expected %d count. Unloading driver.\n", 4775 __func__, i, LPFC_IOCB_LIST_CNT); 4776 goto out_free_iocbq; 4777 } 4778 4779 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 4780 if (iotag == 0) { 4781 kfree(iocbq_entry); 4782 printk(KERN_ERR "%s: failed to allocate IOTAG. " 4783 "Unloading driver.\n", __func__); 4784 goto out_free_iocbq; 4785 } 4786 iocbq_entry->sli4_lxritag = NO_XRI; 4787 iocbq_entry->sli4_xritag = NO_XRI; 4788 4789 spin_lock_irq(&phba->hbalock); 4790 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 4791 phba->total_iocbq_bufs++; 4792 spin_unlock_irq(&phba->hbalock); 4793 } 4794 4795 return 0; 4796 4797out_free_iocbq: 4798 lpfc_free_iocb_list(phba); 4799 4800 return -ENOMEM; 4801} 4802 4803/** 4804 * lpfc_free_sgl_list - Free sgl list. 4805 * @phba: pointer to lpfc hba data structure. 4806 * 4807 * This routine is invoked to free the driver's sgl list and memory. 4808 **/ 4809static void 4810lpfc_free_sgl_list(struct lpfc_hba *phba) 4811{ 4812 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 4813 LIST_HEAD(sglq_list); 4814 4815 spin_lock_irq(&phba->hbalock); 4816 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 4817 spin_unlock_irq(&phba->hbalock); 4818 4819 list_for_each_entry_safe(sglq_entry, sglq_next, 4820 &sglq_list, list) { 4821 list_del(&sglq_entry->list); 4822 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 4823 kfree(sglq_entry); 4824 phba->sli4_hba.total_sglq_bufs--; 4825 } 4826 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4827} 4828 4829/** 4830 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 4831 * @phba: pointer to lpfc hba data structure. 4832 * 4833 * This routine is invoked to allocate the driver's active sgl memory. 4834 * This array will hold the sglq_entry's for active IOs. 4835 **/ 4836static int 4837lpfc_init_active_sgl_array(struct lpfc_hba *phba) 4838{ 4839 int size; 4840 size = sizeof(struct lpfc_sglq *); 4841 size *= phba->sli4_hba.max_cfg_param.max_xri; 4842 4843 phba->sli4_hba.lpfc_sglq_active_list = 4844 kzalloc(size, GFP_KERNEL); 4845 if (!phba->sli4_hba.lpfc_sglq_active_list) 4846 return -ENOMEM; 4847 return 0; 4848} 4849 4850/** 4851 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 4852 * @phba: pointer to lpfc hba data structure. 4853 * 4854 * This routine is invoked to walk through the array of active sglq entries 4855 * and free all of the resources. 4856 * This is just a place holder for now. 4857 **/ 4858static void 4859lpfc_free_active_sgl(struct lpfc_hba *phba) 4860{ 4861 kfree(phba->sli4_hba.lpfc_sglq_active_list); 4862} 4863 4864/** 4865 * lpfc_init_sgl_list - Allocate and initialize sgl list. 4866 * @phba: pointer to lpfc hba data structure. 4867 * 4868 * This routine is invoked to allocate and initizlize the driver's sgl 4869 * list and set up the sgl xritag tag array accordingly. 4870 * 4871 * Return codes 4872 * 0 - successful 4873 * other values - error 4874 **/ 4875static int 4876lpfc_init_sgl_list(struct lpfc_hba *phba) 4877{ 4878 struct lpfc_sglq *sglq_entry = NULL; 4879 int i; 4880 int els_xri_cnt; 4881 4882 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 4883 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4884 "2400 ELS XRI count %d.\n", 4885 els_xri_cnt); 4886 /* Initialize and populate the sglq list per host/VF. */ 4887 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 4888 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 4889 4890 /* Sanity check on XRI management */ 4891 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 4892 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4893 "2562 No room left for SCSI XRI allocation: " 4894 "max_xri=%d, els_xri=%d\n", 4895 phba->sli4_hba.max_cfg_param.max_xri, 4896 els_xri_cnt); 4897 return -ENOMEM; 4898 } 4899 4900 /* Allocate memory for the ELS XRI management array */ 4901 phba->sli4_hba.lpfc_els_sgl_array = 4902 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 4903 GFP_KERNEL); 4904 4905 if (!phba->sli4_hba.lpfc_els_sgl_array) { 4906 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4907 "2401 Failed to allocate memory for ELS " 4908 "XRI management array of size %d.\n", 4909 els_xri_cnt); 4910 return -ENOMEM; 4911 } 4912 4913 /* Keep the SCSI XRI into the XRI management array */ 4914 phba->sli4_hba.scsi_xri_max = 4915 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 4916 phba->sli4_hba.scsi_xri_cnt = 0; 4917 phba->sli4_hba.lpfc_scsi_psb_array = 4918 kzalloc((sizeof(struct lpfc_scsi_buf *) * 4919 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 4920 4921 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 4922 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4923 "2563 Failed to allocate memory for SCSI " 4924 "XRI management array of size %d.\n", 4925 phba->sli4_hba.scsi_xri_max); 4926 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4927 return -ENOMEM; 4928 } 4929 4930 for (i = 0; i < els_xri_cnt; i++) { 4931 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 4932 if (sglq_entry == NULL) { 4933 printk(KERN_ERR "%s: only allocated %d sgls of " 4934 "expected %d count. Unloading driver.\n", 4935 __func__, i, els_xri_cnt); 4936 goto out_free_mem; 4937 } 4938 4939 sglq_entry->buff_type = GEN_BUFF_TYPE; 4940 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 4941 if (sglq_entry->virt == NULL) { 4942 kfree(sglq_entry); 4943 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 4944 "Unloading driver.\n", __func__); 4945 goto out_free_mem; 4946 } 4947 sglq_entry->sgl = sglq_entry->virt; 4948 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 4949 4950 /* The list order is used by later block SGL registraton */ 4951 spin_lock_irq(&phba->hbalock); 4952 sglq_entry->state = SGL_FREED; 4953 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 4954 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 4955 phba->sli4_hba.total_sglq_bufs++; 4956 spin_unlock_irq(&phba->hbalock); 4957 } 4958 return 0; 4959 4960out_free_mem: 4961 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4962 lpfc_free_sgl_list(phba); 4963 return -ENOMEM; 4964} 4965 4966/** 4967 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 4968 * @phba: pointer to lpfc hba data structure. 4969 * 4970 * This routine is invoked to post rpi header templates to the 4971 * port for those SLI4 ports that do not support extents. This routine 4972 * posts a PAGE_SIZE memory region to the port to hold up to 4973 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 4974 * and should be called only when interrupts are disabled. 4975 * 4976 * Return codes 4977 * 0 - successful 4978 * -ERROR - otherwise. 4979 **/ 4980int 4981lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 4982{ 4983 int rc = 0; 4984 struct lpfc_rpi_hdr *rpi_hdr; 4985 4986 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 4987 /* 4988 * If the SLI4 port supports extents, posting the rpi header isn't 4989 * required. Set the expected maximum count and let the actual value 4990 * get set when extents are fully allocated. 4991 */ 4992 if (!phba->sli4_hba.rpi_hdrs_in_use) { 4993 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi; 4994 return rc; 4995 } 4996 if (phba->sli4_hba.extents_in_use) 4997 return -EIO; 4998 4999 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 5000 if (!rpi_hdr) { 5001 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 5002 "0391 Error during rpi post operation\n"); 5003 lpfc_sli4_remove_rpis(phba); 5004 rc = -ENODEV; 5005 } 5006 5007 return rc; 5008} 5009 5010/** 5011 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 5012 * @phba: pointer to lpfc hba data structure. 5013 * 5014 * This routine is invoked to allocate a single 4KB memory region to 5015 * support rpis and stores them in the phba. This single region 5016 * provides support for up to 64 rpis. The region is used globally 5017 * by the device. 5018 * 5019 * Returns: 5020 * A valid rpi hdr on success. 5021 * A NULL pointer on any failure. 5022 **/ 5023struct lpfc_rpi_hdr * 5024lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 5025{ 5026 uint16_t rpi_limit, curr_rpi_range; 5027 struct lpfc_dmabuf *dmabuf; 5028 struct lpfc_rpi_hdr *rpi_hdr; 5029 uint32_t rpi_count; 5030 5031 /* 5032 * If the SLI4 port supports extents, posting the rpi header isn't 5033 * required. Set the expected maximum count and let the actual value 5034 * get set when extents are fully allocated. 5035 */ 5036 if (!phba->sli4_hba.rpi_hdrs_in_use) 5037 return NULL; 5038 if (phba->sli4_hba.extents_in_use) 5039 return NULL; 5040 5041 /* The limit on the logical index is just the max_rpi count. */ 5042 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 5043 phba->sli4_hba.max_cfg_param.max_rpi - 1; 5044 5045 spin_lock_irq(&phba->hbalock); 5046 /* 5047 * Establish the starting RPI in this header block. The starting 5048 * rpi is normalized to a zero base because the physical rpi is 5049 * port based. 5050 */ 5051 curr_rpi_range = phba->sli4_hba.next_rpi - 5052 phba->sli4_hba.max_cfg_param.rpi_base; 5053 spin_unlock_irq(&phba->hbalock); 5054 5055 /* 5056 * The port has a limited number of rpis. The increment here 5057 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 5058 * and to allow the full max_rpi range per port. 5059 */ 5060 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 5061 rpi_count = rpi_limit - curr_rpi_range; 5062 else 5063 rpi_count = LPFC_RPI_HDR_COUNT; 5064 5065 if (!rpi_count) 5066 return NULL; 5067 /* 5068 * First allocate the protocol header region for the port. The 5069 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 5070 */ 5071 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5072 if (!dmabuf) 5073 return NULL; 5074 5075 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5076 LPFC_HDR_TEMPLATE_SIZE, 5077 &dmabuf->phys, 5078 GFP_KERNEL); 5079 if (!dmabuf->virt) { 5080 rpi_hdr = NULL; 5081 goto err_free_dmabuf; 5082 } 5083 5084 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 5085 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 5086 rpi_hdr = NULL; 5087 goto err_free_coherent; 5088 } 5089 5090 /* Save the rpi header data for cleanup later. */ 5091 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 5092 if (!rpi_hdr) 5093 goto err_free_coherent; 5094 5095 rpi_hdr->dmabuf = dmabuf; 5096 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 5097 rpi_hdr->page_count = 1; 5098 spin_lock_irq(&phba->hbalock); 5099 5100 /* The rpi_hdr stores the logical index only. */ 5101 rpi_hdr->start_rpi = curr_rpi_range; 5102 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 5103 5104 /* 5105 * The next_rpi stores the next logical module-64 rpi value used 5106 * to post physical rpis in subsequent rpi postings. 5107 */ 5108 phba->sli4_hba.next_rpi += rpi_count; 5109 spin_unlock_irq(&phba->hbalock); 5110 return rpi_hdr; 5111 5112 err_free_coherent: 5113 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 5114 dmabuf->virt, dmabuf->phys); 5115 err_free_dmabuf: 5116 kfree(dmabuf); 5117 return NULL; 5118} 5119 5120/** 5121 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 5122 * @phba: pointer to lpfc hba data structure. 5123 * 5124 * This routine is invoked to remove all memory resources allocated 5125 * to support rpis for SLI4 ports not supporting extents. This routine 5126 * presumes the caller has released all rpis consumed by fabric or port 5127 * logins and is prepared to have the header pages removed. 5128 **/ 5129void 5130lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 5131{ 5132 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 5133 5134 if (!phba->sli4_hba.rpi_hdrs_in_use) 5135 goto exit; 5136 5137 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 5138 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 5139 list_del(&rpi_hdr->list); 5140 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 5141 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 5142 kfree(rpi_hdr->dmabuf); 5143 kfree(rpi_hdr); 5144 } 5145 exit: 5146 /* There are no rpis available to the port now. */ 5147 phba->sli4_hba.next_rpi = 0; 5148} 5149 5150/** 5151 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 5152 * @pdev: pointer to pci device data structure. 5153 * 5154 * This routine is invoked to allocate the driver hba data structure for an 5155 * HBA device. If the allocation is successful, the phba reference to the 5156 * PCI device data structure is set. 5157 * 5158 * Return codes 5159 * pointer to @phba - successful 5160 * NULL - error 5161 **/ 5162static struct lpfc_hba * 5163lpfc_hba_alloc(struct pci_dev *pdev) 5164{ 5165 struct lpfc_hba *phba; 5166 5167 /* Allocate memory for HBA structure */ 5168 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 5169 if (!phba) { 5170 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 5171 return NULL; 5172 } 5173 5174 /* Set reference to PCI device in HBA structure */ 5175 phba->pcidev = pdev; 5176 5177 /* Assign an unused board number */ 5178 phba->brd_no = lpfc_get_instance(); 5179 if (phba->brd_no < 0) { 5180 kfree(phba); 5181 return NULL; 5182 } 5183 5184 spin_lock_init(&phba->ct_ev_lock); 5185 INIT_LIST_HEAD(&phba->ct_ev_waiters); 5186 5187 return phba; 5188} 5189 5190/** 5191 * lpfc_hba_free - Free driver hba data structure with a device. 5192 * @phba: pointer to lpfc hba data structure. 5193 * 5194 * This routine is invoked to free the driver hba data structure with an 5195 * HBA device. 5196 **/ 5197static void 5198lpfc_hba_free(struct lpfc_hba *phba) 5199{ 5200 /* Release the driver assigned board number */ 5201 idr_remove(&lpfc_hba_index, phba->brd_no); 5202 5203 kfree(phba); 5204 return; 5205} 5206 5207/** 5208 * lpfc_create_shost - Create hba physical port with associated scsi host. 5209 * @phba: pointer to lpfc hba data structure. 5210 * 5211 * This routine is invoked to create HBA physical port and associate a SCSI 5212 * host with it. 5213 * 5214 * Return codes 5215 * 0 - successful 5216 * other values - error 5217 **/ 5218static int 5219lpfc_create_shost(struct lpfc_hba *phba) 5220{ 5221 struct lpfc_vport *vport; 5222 struct Scsi_Host *shost; 5223 5224 /* Initialize HBA FC structure */ 5225 phba->fc_edtov = FF_DEF_EDTOV; 5226 phba->fc_ratov = FF_DEF_RATOV; 5227 phba->fc_altov = FF_DEF_ALTOV; 5228 phba->fc_arbtov = FF_DEF_ARBTOV; 5229 5230 atomic_set(&phba->sdev_cnt, 0); 5231 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 5232 if (!vport) 5233 return -ENODEV; 5234 5235 shost = lpfc_shost_from_vport(vport); 5236 phba->pport = vport; 5237 lpfc_debugfs_initialize(vport); 5238 /* Put reference to SCSI host to driver's device private data */ 5239 pci_set_drvdata(phba->pcidev, shost); 5240 5241 return 0; 5242} 5243 5244/** 5245 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 5246 * @phba: pointer to lpfc hba data structure. 5247 * 5248 * This routine is invoked to destroy HBA physical port and the associated 5249 * SCSI host. 5250 **/ 5251static void 5252lpfc_destroy_shost(struct lpfc_hba *phba) 5253{ 5254 struct lpfc_vport *vport = phba->pport; 5255 5256 /* Destroy physical port that associated with the SCSI host */ 5257 destroy_port(vport); 5258 5259 return; 5260} 5261 5262/** 5263 * lpfc_setup_bg - Setup Block guard structures and debug areas. 5264 * @phba: pointer to lpfc hba data structure. 5265 * @shost: the shost to be used to detect Block guard settings. 5266 * 5267 * This routine sets up the local Block guard protocol settings for @shost. 5268 * This routine also allocates memory for debugging bg buffers. 5269 **/ 5270static void 5271lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 5272{ 5273 int pagecnt = 10; 5274 if (lpfc_prot_mask && lpfc_prot_guard) { 5275 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5276 "1478 Registering BlockGuard with the " 5277 "SCSI layer\n"); 5278 scsi_host_set_prot(shost, lpfc_prot_mask); 5279 scsi_host_set_guard(shost, lpfc_prot_guard); 5280 } 5281 if (!_dump_buf_data) { 5282 while (pagecnt) { 5283 spin_lock_init(&_dump_buf_lock); 5284 _dump_buf_data = 5285 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5286 if (_dump_buf_data) { 5287 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5288 "9043 BLKGRD: allocated %d pages for " 5289 "_dump_buf_data at 0x%p\n", 5290 (1 << pagecnt), _dump_buf_data); 5291 _dump_buf_data_order = pagecnt; 5292 memset(_dump_buf_data, 0, 5293 ((1 << PAGE_SHIFT) << pagecnt)); 5294 break; 5295 } else 5296 --pagecnt; 5297 } 5298 if (!_dump_buf_data_order) 5299 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5300 "9044 BLKGRD: ERROR unable to allocate " 5301 "memory for hexdump\n"); 5302 } else 5303 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5304 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 5305 "\n", _dump_buf_data); 5306 if (!_dump_buf_dif) { 5307 while (pagecnt) { 5308 _dump_buf_dif = 5309 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5310 if (_dump_buf_dif) { 5311 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5312 "9046 BLKGRD: allocated %d pages for " 5313 "_dump_buf_dif at 0x%p\n", 5314 (1 << pagecnt), _dump_buf_dif); 5315 _dump_buf_dif_order = pagecnt; 5316 memset(_dump_buf_dif, 0, 5317 ((1 << PAGE_SHIFT) << pagecnt)); 5318 break; 5319 } else 5320 --pagecnt; 5321 } 5322 if (!_dump_buf_dif_order) 5323 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5324 "9047 BLKGRD: ERROR unable to allocate " 5325 "memory for hexdump\n"); 5326 } else 5327 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5328 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 5329 _dump_buf_dif); 5330} 5331 5332/** 5333 * lpfc_post_init_setup - Perform necessary device post initialization setup. 5334 * @phba: pointer to lpfc hba data structure. 5335 * 5336 * This routine is invoked to perform all the necessary post initialization 5337 * setup for the device. 5338 **/ 5339static void 5340lpfc_post_init_setup(struct lpfc_hba *phba) 5341{ 5342 struct Scsi_Host *shost; 5343 struct lpfc_adapter_event_header adapter_event; 5344 5345 /* Get the default values for Model Name and Description */ 5346 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5347 5348 /* 5349 * hba setup may have changed the hba_queue_depth so we need to 5350 * adjust the value of can_queue. 5351 */ 5352 shost = pci_get_drvdata(phba->pcidev); 5353 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5354 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5355 lpfc_setup_bg(phba, shost); 5356 5357 lpfc_host_attrib_init(shost); 5358 5359 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5360 spin_lock_irq(shost->host_lock); 5361 lpfc_poll_start_timer(phba); 5362 spin_unlock_irq(shost->host_lock); 5363 } 5364 5365 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5366 "0428 Perform SCSI scan\n"); 5367 /* Send board arrival event to upper layer */ 5368 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5369 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5370 fc_host_post_vendor_event(shost, fc_get_event_number(), 5371 sizeof(adapter_event), 5372 (char *) &adapter_event, 5373 LPFC_NL_VENDOR_ID); 5374 return; 5375} 5376 5377/** 5378 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5379 * @phba: pointer to lpfc hba data structure. 5380 * 5381 * This routine is invoked to set up the PCI device memory space for device 5382 * with SLI-3 interface spec. 5383 * 5384 * Return codes 5385 * 0 - successful 5386 * other values - error 5387 **/ 5388static int 5389lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5390{ 5391 struct pci_dev *pdev; 5392 unsigned long bar0map_len, bar2map_len; 5393 int i, hbq_count; 5394 void *ptr; 5395 int error = -ENODEV; 5396 5397 /* Obtain PCI device reference */ 5398 if (!phba->pcidev) 5399 return error; 5400 else 5401 pdev = phba->pcidev; 5402 5403 /* Set the device DMA mask size */ 5404 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5405 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5406 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5407 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5408 return error; 5409 } 5410 } 5411 5412 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5413 * required by each mapping. 5414 */ 5415 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5416 bar0map_len = pci_resource_len(pdev, 0); 5417 5418 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5419 bar2map_len = pci_resource_len(pdev, 2); 5420 5421 /* Map HBA SLIM to a kernel virtual address. */ 5422 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5423 if (!phba->slim_memmap_p) { 5424 dev_printk(KERN_ERR, &pdev->dev, 5425 "ioremap failed for SLIM memory.\n"); 5426 goto out; 5427 } 5428 5429 /* Map HBA Control Registers to a kernel virtual address. */ 5430 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5431 if (!phba->ctrl_regs_memmap_p) { 5432 dev_printk(KERN_ERR, &pdev->dev, 5433 "ioremap failed for HBA control registers.\n"); 5434 goto out_iounmap_slim; 5435 } 5436 5437 /* Allocate memory for SLI-2 structures */ 5438 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5439 SLI2_SLIM_SIZE, 5440 &phba->slim2p.phys, 5441 GFP_KERNEL); 5442 if (!phba->slim2p.virt) 5443 goto out_iounmap; 5444 5445 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5446 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5447 phba->mbox_ext = (phba->slim2p.virt + 5448 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5449 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5450 phba->IOCBs = (phba->slim2p.virt + 5451 offsetof(struct lpfc_sli2_slim, IOCBs)); 5452 5453 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5454 lpfc_sli_hbq_size(), 5455 &phba->hbqslimp.phys, 5456 GFP_KERNEL); 5457 if (!phba->hbqslimp.virt) 5458 goto out_free_slim; 5459 5460 hbq_count = lpfc_sli_hbq_count(); 5461 ptr = phba->hbqslimp.virt; 5462 for (i = 0; i < hbq_count; ++i) { 5463 phba->hbqs[i].hbq_virt = ptr; 5464 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5465 ptr += (lpfc_hbq_defs[i]->entry_count * 5466 sizeof(struct lpfc_hbq_entry)); 5467 } 5468 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5469 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5470 5471 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5472 5473 INIT_LIST_HEAD(&phba->rb_pend_list); 5474 5475 phba->MBslimaddr = phba->slim_memmap_p; 5476 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 5477 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 5478 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 5479 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 5480 5481 return 0; 5482 5483out_free_slim: 5484 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5485 phba->slim2p.virt, phba->slim2p.phys); 5486out_iounmap: 5487 iounmap(phba->ctrl_regs_memmap_p); 5488out_iounmap_slim: 5489 iounmap(phba->slim_memmap_p); 5490out: 5491 return error; 5492} 5493 5494/** 5495 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 5496 * @phba: pointer to lpfc hba data structure. 5497 * 5498 * This routine is invoked to unset the PCI device memory space for device 5499 * with SLI-3 interface spec. 5500 **/ 5501static void 5502lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 5503{ 5504 struct pci_dev *pdev; 5505 5506 /* Obtain PCI device reference */ 5507 if (!phba->pcidev) 5508 return; 5509 else 5510 pdev = phba->pcidev; 5511 5512 /* Free coherent DMA memory allocated */ 5513 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 5514 phba->hbqslimp.virt, phba->hbqslimp.phys); 5515 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5516 phba->slim2p.virt, phba->slim2p.phys); 5517 5518 /* I/O memory unmap */ 5519 iounmap(phba->ctrl_regs_memmap_p); 5520 iounmap(phba->slim_memmap_p); 5521 5522 return; 5523} 5524 5525/** 5526 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 5527 * @phba: pointer to lpfc hba data structure. 5528 * 5529 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 5530 * done and check status. 5531 * 5532 * Return 0 if successful, otherwise -ENODEV. 5533 **/ 5534int 5535lpfc_sli4_post_status_check(struct lpfc_hba *phba) 5536{ 5537 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 5538 struct lpfc_register reg_data; 5539 int i, port_error = 0; 5540 uint32_t if_type; 5541 5542 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 5543 memset(®_data, 0, sizeof(reg_data)); 5544 if (!phba->sli4_hba.PSMPHRregaddr) 5545 return -ENODEV; 5546 5547 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 5548 for (i = 0; i < 3000; i++) { 5549 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 5550 &portsmphr_reg.word0) || 5551 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 5552 /* Port has a fatal POST error, break out */ 5553 port_error = -ENODEV; 5554 break; 5555 } 5556 if (LPFC_POST_STAGE_PORT_READY == 5557 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 5558 break; 5559 msleep(10); 5560 } 5561 5562 /* 5563 * If there was a port error during POST, then don't proceed with 5564 * other register reads as the data may not be valid. Just exit. 5565 */ 5566 if (port_error) { 5567 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5568 "1408 Port Failed POST - portsmphr=0x%x, " 5569 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 5570 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 5571 portsmphr_reg.word0, 5572 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 5573 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 5574 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 5575 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 5576 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 5577 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 5578 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 5579 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 5580 } else { 5581 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5582 "2534 Device Info: SLIFamily=0x%x, " 5583 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 5584 "SLIHint_2=0x%x, FT=0x%x\n", 5585 bf_get(lpfc_sli_intf_sli_family, 5586 &phba->sli4_hba.sli_intf), 5587 bf_get(lpfc_sli_intf_slirev, 5588 &phba->sli4_hba.sli_intf), 5589 bf_get(lpfc_sli_intf_if_type, 5590 &phba->sli4_hba.sli_intf), 5591 bf_get(lpfc_sli_intf_sli_hint1, 5592 &phba->sli4_hba.sli_intf), 5593 bf_get(lpfc_sli_intf_sli_hint2, 5594 &phba->sli4_hba.sli_intf), 5595 bf_get(lpfc_sli_intf_func_type, 5596 &phba->sli4_hba.sli_intf)); 5597 /* 5598 * Check for other Port errors during the initialization 5599 * process. Fail the load if the port did not come up 5600 * correctly. 5601 */ 5602 if_type = bf_get(lpfc_sli_intf_if_type, 5603 &phba->sli4_hba.sli_intf); 5604 switch (if_type) { 5605 case LPFC_SLI_INTF_IF_TYPE_0: 5606 phba->sli4_hba.ue_mask_lo = 5607 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 5608 phba->sli4_hba.ue_mask_hi = 5609 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 5610 uerrlo_reg.word0 = 5611 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 5612 uerrhi_reg.word0 = 5613 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 5614 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 5615 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 5616 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5617 "1422 Unrecoverable Error " 5618 "Detected during POST " 5619 "uerr_lo_reg=0x%x, " 5620 "uerr_hi_reg=0x%x, " 5621 "ue_mask_lo_reg=0x%x, " 5622 "ue_mask_hi_reg=0x%x\n", 5623 uerrlo_reg.word0, 5624 uerrhi_reg.word0, 5625 phba->sli4_hba.ue_mask_lo, 5626 phba->sli4_hba.ue_mask_hi); 5627 port_error = -ENODEV; 5628 } 5629 break; 5630 case LPFC_SLI_INTF_IF_TYPE_2: 5631 /* Final checks. The port status should be clean. */ 5632 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 5633 ®_data.word0) || 5634 (bf_get(lpfc_sliport_status_err, ®_data) && 5635 !bf_get(lpfc_sliport_status_rn, ®_data))) { 5636 phba->work_status[0] = 5637 readl(phba->sli4_hba.u.if_type2. 5638 ERR1regaddr); 5639 phba->work_status[1] = 5640 readl(phba->sli4_hba.u.if_type2. 5641 ERR2regaddr); 5642 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5643 "2888 Port Error Detected " 5644 "during POST: " 5645 "port status reg 0x%x, " 5646 "port_smphr reg 0x%x, " 5647 "error 1=0x%x, error 2=0x%x\n", 5648 reg_data.word0, 5649 portsmphr_reg.word0, 5650 phba->work_status[0], 5651 phba->work_status[1]); 5652 port_error = -ENODEV; 5653 } 5654 break; 5655 case LPFC_SLI_INTF_IF_TYPE_1: 5656 default: 5657 break; 5658 } 5659 } 5660 return port_error; 5661} 5662 5663/** 5664 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 5665 * @phba: pointer to lpfc hba data structure. 5666 * @if_type: The SLI4 interface type getting configured. 5667 * 5668 * This routine is invoked to set up SLI4 BAR0 PCI config space register 5669 * memory map. 5670 **/ 5671static void 5672lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 5673{ 5674 switch (if_type) { 5675 case LPFC_SLI_INTF_IF_TYPE_0: 5676 phba->sli4_hba.u.if_type0.UERRLOregaddr = 5677 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 5678 phba->sli4_hba.u.if_type0.UERRHIregaddr = 5679 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 5680 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 5681 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 5682 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 5683 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 5684 phba->sli4_hba.SLIINTFregaddr = 5685 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 5686 break; 5687 case LPFC_SLI_INTF_IF_TYPE_2: 5688 phba->sli4_hba.u.if_type2.ERR1regaddr = 5689 phba->sli4_hba.conf_regs_memmap_p + 5690 LPFC_CTL_PORT_ER1_OFFSET; 5691 phba->sli4_hba.u.if_type2.ERR2regaddr = 5692 phba->sli4_hba.conf_regs_memmap_p + 5693 LPFC_CTL_PORT_ER2_OFFSET; 5694 phba->sli4_hba.u.if_type2.CTRLregaddr = 5695 phba->sli4_hba.conf_regs_memmap_p + 5696 LPFC_CTL_PORT_CTL_OFFSET; 5697 phba->sli4_hba.u.if_type2.STATUSregaddr = 5698 phba->sli4_hba.conf_regs_memmap_p + 5699 LPFC_CTL_PORT_STA_OFFSET; 5700 phba->sli4_hba.SLIINTFregaddr = 5701 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 5702 phba->sli4_hba.PSMPHRregaddr = 5703 phba->sli4_hba.conf_regs_memmap_p + 5704 LPFC_CTL_PORT_SEM_OFFSET; 5705 phba->sli4_hba.RQDBregaddr = 5706 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL; 5707 phba->sli4_hba.WQDBregaddr = 5708 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL; 5709 phba->sli4_hba.EQCQDBregaddr = 5710 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 5711 phba->sli4_hba.MQDBregaddr = 5712 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 5713 phba->sli4_hba.BMBXregaddr = 5714 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 5715 break; 5716 case LPFC_SLI_INTF_IF_TYPE_1: 5717 default: 5718 dev_printk(KERN_ERR, &phba->pcidev->dev, 5719 "FATAL - unsupported SLI4 interface type - %d\n", 5720 if_type); 5721 break; 5722 } 5723} 5724 5725/** 5726 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 5727 * @phba: pointer to lpfc hba data structure. 5728 * 5729 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 5730 * memory map. 5731 **/ 5732static void 5733lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 5734{ 5735 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5736 LPFC_SLIPORT_IF0_SMPHR; 5737 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5738 LPFC_HST_ISR0; 5739 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5740 LPFC_HST_IMR0; 5741 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5742 LPFC_HST_ISCR0; 5743} 5744 5745/** 5746 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 5747 * @phba: pointer to lpfc hba data structure. 5748 * @vf: virtual function number 5749 * 5750 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 5751 * based on the given viftual function number, @vf. 5752 * 5753 * Return 0 if successful, otherwise -ENODEV. 5754 **/ 5755static int 5756lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 5757{ 5758 if (vf > LPFC_VIR_FUNC_MAX) 5759 return -ENODEV; 5760 5761 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5762 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 5763 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5764 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 5765 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5766 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 5767 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5768 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 5769 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5770 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 5771 return 0; 5772} 5773 5774/** 5775 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 5776 * @phba: pointer to lpfc hba data structure. 5777 * 5778 * This routine is invoked to create the bootstrap mailbox 5779 * region consistent with the SLI-4 interface spec. This 5780 * routine allocates all memory necessary to communicate 5781 * mailbox commands to the port and sets up all alignment 5782 * needs. No locks are expected to be held when calling 5783 * this routine. 5784 * 5785 * Return codes 5786 * 0 - successful 5787 * -ENOMEM - could not allocated memory. 5788 **/ 5789static int 5790lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 5791{ 5792 uint32_t bmbx_size; 5793 struct lpfc_dmabuf *dmabuf; 5794 struct dma_address *dma_address; 5795 uint32_t pa_addr; 5796 uint64_t phys_addr; 5797 5798 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5799 if (!dmabuf) 5800 return -ENOMEM; 5801 5802 /* 5803 * The bootstrap mailbox region is comprised of 2 parts 5804 * plus an alignment restriction of 16 bytes. 5805 */ 5806 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 5807 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5808 bmbx_size, 5809 &dmabuf->phys, 5810 GFP_KERNEL); 5811 if (!dmabuf->virt) { 5812 kfree(dmabuf); 5813 return -ENOMEM; 5814 } 5815 memset(dmabuf->virt, 0, bmbx_size); 5816 5817 /* 5818 * Initialize the bootstrap mailbox pointers now so that the register 5819 * operations are simple later. The mailbox dma address is required 5820 * to be 16-byte aligned. Also align the virtual memory as each 5821 * maibox is copied into the bmbx mailbox region before issuing the 5822 * command to the port. 5823 */ 5824 phba->sli4_hba.bmbx.dmabuf = dmabuf; 5825 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 5826 5827 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 5828 LPFC_ALIGN_16_BYTE); 5829 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 5830 LPFC_ALIGN_16_BYTE); 5831 5832 /* 5833 * Set the high and low physical addresses now. The SLI4 alignment 5834 * requirement is 16 bytes and the mailbox is posted to the port 5835 * as two 30-bit addresses. The other data is a bit marking whether 5836 * the 30-bit address is the high or low address. 5837 * Upcast bmbx aphys to 64bits so shift instruction compiles 5838 * clean on 32 bit machines. 5839 */ 5840 dma_address = &phba->sli4_hba.bmbx.dma_address; 5841 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 5842 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 5843 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 5844 LPFC_BMBX_BIT1_ADDR_HI); 5845 5846 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 5847 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 5848 LPFC_BMBX_BIT1_ADDR_LO); 5849 return 0; 5850} 5851 5852/** 5853 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 5854 * @phba: pointer to lpfc hba data structure. 5855 * 5856 * This routine is invoked to teardown the bootstrap mailbox 5857 * region and release all host resources. This routine requires 5858 * the caller to ensure all mailbox commands recovered, no 5859 * additional mailbox comands are sent, and interrupts are disabled 5860 * before calling this routine. 5861 * 5862 **/ 5863static void 5864lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 5865{ 5866 dma_free_coherent(&phba->pcidev->dev, 5867 phba->sli4_hba.bmbx.bmbx_size, 5868 phba->sli4_hba.bmbx.dmabuf->virt, 5869 phba->sli4_hba.bmbx.dmabuf->phys); 5870 5871 kfree(phba->sli4_hba.bmbx.dmabuf); 5872 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 5873} 5874 5875/** 5876 * lpfc_sli4_read_config - Get the config parameters. 5877 * @phba: pointer to lpfc hba data structure. 5878 * 5879 * This routine is invoked to read the configuration parameters from the HBA. 5880 * The configuration parameters are used to set the base and maximum values 5881 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 5882 * allocation for the port. 5883 * 5884 * Return codes 5885 * 0 - successful 5886 * -ENOMEM - No available memory 5887 * -EIO - The mailbox failed to complete successfully. 5888 **/ 5889static int 5890lpfc_sli4_read_config(struct lpfc_hba *phba) 5891{ 5892 LPFC_MBOXQ_t *pmb; 5893 struct lpfc_mbx_read_config *rd_config; 5894 union lpfc_sli4_cfg_shdr *shdr; 5895 uint32_t shdr_status, shdr_add_status; 5896 struct lpfc_mbx_get_func_cfg *get_func_cfg; 5897 struct lpfc_rsrc_desc_fcfcoe *desc; 5898 uint32_t desc_count; 5899 int length, i, rc = 0; 5900 5901 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5902 if (!pmb) { 5903 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5904 "2011 Unable to allocate memory for issuing " 5905 "SLI_CONFIG_SPECIAL mailbox command\n"); 5906 return -ENOMEM; 5907 } 5908 5909 lpfc_read_config(phba, pmb); 5910 5911 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 5912 if (rc != MBX_SUCCESS) { 5913 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5914 "2012 Mailbox failed , mbxCmd x%x " 5915 "READ_CONFIG, mbxStatus x%x\n", 5916 bf_get(lpfc_mqe_command, &pmb->u.mqe), 5917 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 5918 rc = -EIO; 5919 } else { 5920 rd_config = &pmb->u.mqe.un.rd_config; 5921 phba->sli4_hba.extents_in_use = 5922 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 5923 phba->sli4_hba.max_cfg_param.max_xri = 5924 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 5925 phba->sli4_hba.max_cfg_param.xri_base = 5926 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 5927 phba->sli4_hba.max_cfg_param.max_vpi = 5928 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 5929 phba->sli4_hba.max_cfg_param.vpi_base = 5930 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 5931 phba->sli4_hba.max_cfg_param.max_rpi = 5932 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 5933 phba->sli4_hba.max_cfg_param.rpi_base = 5934 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 5935 phba->sli4_hba.max_cfg_param.max_vfi = 5936 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 5937 phba->sli4_hba.max_cfg_param.vfi_base = 5938 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 5939 phba->sli4_hba.max_cfg_param.max_fcfi = 5940 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 5941 phba->sli4_hba.max_cfg_param.max_eq = 5942 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 5943 phba->sli4_hba.max_cfg_param.max_rq = 5944 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 5945 phba->sli4_hba.max_cfg_param.max_wq = 5946 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 5947 phba->sli4_hba.max_cfg_param.max_cq = 5948 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 5949 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 5950 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 5951 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 5952 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 5953 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 5954 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 5955 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 5956 phba->max_vports = phba->max_vpi; 5957 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5958 "2003 cfg params Extents? %d " 5959 "XRI(B:%d M:%d), " 5960 "VPI(B:%d M:%d) " 5961 "VFI(B:%d M:%d) " 5962 "RPI(B:%d M:%d) " 5963 "FCFI(Count:%d)\n", 5964 phba->sli4_hba.extents_in_use, 5965 phba->sli4_hba.max_cfg_param.xri_base, 5966 phba->sli4_hba.max_cfg_param.max_xri, 5967 phba->sli4_hba.max_cfg_param.vpi_base, 5968 phba->sli4_hba.max_cfg_param.max_vpi, 5969 phba->sli4_hba.max_cfg_param.vfi_base, 5970 phba->sli4_hba.max_cfg_param.max_vfi, 5971 phba->sli4_hba.max_cfg_param.rpi_base, 5972 phba->sli4_hba.max_cfg_param.max_rpi, 5973 phba->sli4_hba.max_cfg_param.max_fcfi); 5974 } 5975 5976 if (rc) 5977 goto read_cfg_out; 5978 5979 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 5980 if (phba->cfg_hba_queue_depth > 5981 (phba->sli4_hba.max_cfg_param.max_xri - 5982 lpfc_sli4_get_els_iocb_cnt(phba))) 5983 phba->cfg_hba_queue_depth = 5984 phba->sli4_hba.max_cfg_param.max_xri - 5985 lpfc_sli4_get_els_iocb_cnt(phba); 5986 5987 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 5988 LPFC_SLI_INTF_IF_TYPE_2) 5989 goto read_cfg_out; 5990 5991 /* get the pf# and vf# for SLI4 if_type 2 port */ 5992 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 5993 sizeof(struct lpfc_sli4_cfg_mhdr)); 5994 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 5995 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 5996 length, LPFC_SLI4_MBX_EMBED); 5997 5998 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 5999 shdr = (union lpfc_sli4_cfg_shdr *) 6000 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 6001 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6002 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6003 if (rc || shdr_status || shdr_add_status) { 6004 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6005 "3026 Mailbox failed , mbxCmd x%x " 6006 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 6007 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6008 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6009 rc = -EIO; 6010 goto read_cfg_out; 6011 } 6012 6013 /* search for fc_fcoe resrouce descriptor */ 6014 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 6015 desc_count = get_func_cfg->func_cfg.rsrc_desc_count; 6016 6017 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 6018 desc = (struct lpfc_rsrc_desc_fcfcoe *) 6019 &get_func_cfg->func_cfg.desc[i]; 6020 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 6021 bf_get(lpfc_rsrc_desc_pcie_type, desc)) { 6022 phba->sli4_hba.iov.pf_number = 6023 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 6024 phba->sli4_hba.iov.vf_number = 6025 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 6026 break; 6027 } 6028 } 6029 6030 if (i < LPFC_RSRC_DESC_MAX_NUM) 6031 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6032 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 6033 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 6034 phba->sli4_hba.iov.vf_number); 6035 else { 6036 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6037 "3028 GET_FUNCTION_CONFIG: failed to find " 6038 "Resrouce Descriptor:x%x\n", 6039 LPFC_RSRC_DESC_TYPE_FCFCOE); 6040 rc = -EIO; 6041 } 6042 6043read_cfg_out: 6044 mempool_free(pmb, phba->mbox_mem_pool); 6045 return rc; 6046} 6047 6048/** 6049 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 6050 * @phba: pointer to lpfc hba data structure. 6051 * 6052 * This routine is invoked to setup the port-side endian order when 6053 * the port if_type is 0. This routine has no function for other 6054 * if_types. 6055 * 6056 * Return codes 6057 * 0 - successful 6058 * -ENOMEM - No available memory 6059 * -EIO - The mailbox failed to complete successfully. 6060 **/ 6061static int 6062lpfc_setup_endian_order(struct lpfc_hba *phba) 6063{ 6064 LPFC_MBOXQ_t *mboxq; 6065 uint32_t if_type, rc = 0; 6066 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 6067 HOST_ENDIAN_HIGH_WORD1}; 6068 6069 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 6070 switch (if_type) { 6071 case LPFC_SLI_INTF_IF_TYPE_0: 6072 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6073 GFP_KERNEL); 6074 if (!mboxq) { 6075 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6076 "0492 Unable to allocate memory for " 6077 "issuing SLI_CONFIG_SPECIAL mailbox " 6078 "command\n"); 6079 return -ENOMEM; 6080 } 6081 6082 /* 6083 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 6084 * two words to contain special data values and no other data. 6085 */ 6086 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 6087 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 6088 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6089 if (rc != MBX_SUCCESS) { 6090 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6091 "0493 SLI_CONFIG_SPECIAL mailbox " 6092 "failed with status x%x\n", 6093 rc); 6094 rc = -EIO; 6095 } 6096 mempool_free(mboxq, phba->mbox_mem_pool); 6097 break; 6098 case LPFC_SLI_INTF_IF_TYPE_2: 6099 case LPFC_SLI_INTF_IF_TYPE_1: 6100 default: 6101 break; 6102 } 6103 return rc; 6104} 6105 6106/** 6107 * lpfc_sli4_queue_create - Create all the SLI4 queues 6108 * @phba: pointer to lpfc hba data structure. 6109 * 6110 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 6111 * operation. For each SLI4 queue type, the parameters such as queue entry 6112 * count (queue depth) shall be taken from the module parameter. For now, 6113 * we just use some constant number as place holder. 6114 * 6115 * Return codes 6116 * 0 - successful 6117 * -ENOMEM - No available memory 6118 * -EIO - The mailbox failed to complete successfully. 6119 **/ 6120static int 6121lpfc_sli4_queue_create(struct lpfc_hba *phba) 6122{ 6123 struct lpfc_queue *qdesc; 6124 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6125 int cfg_fcp_wq_count; 6126 int cfg_fcp_eq_count; 6127 6128 /* 6129 * Sanity check for confiugred queue parameters against the run-time 6130 * device parameters 6131 */ 6132 6133 /* Sanity check on FCP fast-path WQ parameters */ 6134 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 6135 if (cfg_fcp_wq_count > 6136 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 6137 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 6138 LPFC_SP_WQN_DEF; 6139 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 6140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6141 "2581 Not enough WQs (%d) from " 6142 "the pci function for supporting " 6143 "FCP WQs (%d)\n", 6144 phba->sli4_hba.max_cfg_param.max_wq, 6145 phba->cfg_fcp_wq_count); 6146 goto out_error; 6147 } 6148 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6149 "2582 Not enough WQs (%d) from the pci " 6150 "function for supporting the requested " 6151 "FCP WQs (%d), the actual FCP WQs can " 6152 "be supported: %d\n", 6153 phba->sli4_hba.max_cfg_param.max_wq, 6154 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 6155 } 6156 /* The actual number of FCP work queues adopted */ 6157 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 6158 6159 /* Sanity check on FCP fast-path EQ parameters */ 6160 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 6161 if (cfg_fcp_eq_count > 6162 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 6163 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 6164 LPFC_SP_EQN_DEF; 6165 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 6166 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6167 "2574 Not enough EQs (%d) from the " 6168 "pci function for supporting FCP " 6169 "EQs (%d)\n", 6170 phba->sli4_hba.max_cfg_param.max_eq, 6171 phba->cfg_fcp_eq_count); 6172 goto out_error; 6173 } 6174 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6175 "2575 Not enough EQs (%d) from the pci " 6176 "function for supporting the requested " 6177 "FCP EQs (%d), the actual FCP EQs can " 6178 "be supported: %d\n", 6179 phba->sli4_hba.max_cfg_param.max_eq, 6180 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 6181 } 6182 /* It does not make sense to have more EQs than WQs */ 6183 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 6184 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6185 "2593 The FCP EQ count(%d) cannot be greater " 6186 "than the FCP WQ count(%d), limiting the " 6187 "FCP EQ count to %d\n", cfg_fcp_eq_count, 6188 phba->cfg_fcp_wq_count, 6189 phba->cfg_fcp_wq_count); 6190 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 6191 } 6192 /* The actual number of FCP event queues adopted */ 6193 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 6194 /* The overall number of event queues used */ 6195 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 6196 6197 /* 6198 * Create Event Queues (EQs) 6199 */ 6200 6201 /* Get EQ depth from module parameter, fake the default for now */ 6202 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 6203 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 6204 6205 /* Create slow path event queue */ 6206 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6207 phba->sli4_hba.eq_ecount); 6208 if (!qdesc) { 6209 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6210 "0496 Failed allocate slow-path EQ\n"); 6211 goto out_error; 6212 } 6213 phba->sli4_hba.sp_eq = qdesc; 6214 6215 /* Create fast-path FCP Event Queue(s) */ 6216 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 6217 phba->cfg_fcp_eq_count), GFP_KERNEL); 6218 if (!phba->sli4_hba.fp_eq) { 6219 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6220 "2576 Failed allocate memory for fast-path " 6221 "EQ record array\n"); 6222 goto out_free_sp_eq; 6223 } 6224 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6225 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6226 phba->sli4_hba.eq_ecount); 6227 if (!qdesc) { 6228 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6229 "0497 Failed allocate fast-path EQ\n"); 6230 goto out_free_fp_eq; 6231 } 6232 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 6233 } 6234 6235 /* 6236 * Create Complete Queues (CQs) 6237 */ 6238 6239 /* Get CQ depth from module parameter, fake the default for now */ 6240 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 6241 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 6242 6243 /* Create slow-path Mailbox Command Complete Queue */ 6244 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6245 phba->sli4_hba.cq_ecount); 6246 if (!qdesc) { 6247 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6248 "0500 Failed allocate slow-path mailbox CQ\n"); 6249 goto out_free_fp_eq; 6250 } 6251 phba->sli4_hba.mbx_cq = qdesc; 6252 6253 /* Create slow-path ELS Complete Queue */ 6254 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6255 phba->sli4_hba.cq_ecount); 6256 if (!qdesc) { 6257 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6258 "0501 Failed allocate slow-path ELS CQ\n"); 6259 goto out_free_mbx_cq; 6260 } 6261 phba->sli4_hba.els_cq = qdesc; 6262 6263 6264 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ 6265 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 6266 phba->cfg_fcp_eq_count), GFP_KERNEL); 6267 if (!phba->sli4_hba.fcp_cq) { 6268 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6269 "2577 Failed allocate memory for fast-path " 6270 "CQ record array\n"); 6271 goto out_free_els_cq; 6272 } 6273 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 6274 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6275 phba->sli4_hba.cq_ecount); 6276 if (!qdesc) { 6277 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6278 "0499 Failed allocate fast-path FCP " 6279 "CQ (%d)\n", fcp_cqidx); 6280 goto out_free_fcp_cq; 6281 } 6282 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 6283 } 6284 6285 /* Create Mailbox Command Queue */ 6286 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 6287 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 6288 6289 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 6290 phba->sli4_hba.mq_ecount); 6291 if (!qdesc) { 6292 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6293 "0505 Failed allocate slow-path MQ\n"); 6294 goto out_free_fcp_cq; 6295 } 6296 phba->sli4_hba.mbx_wq = qdesc; 6297 6298 /* 6299 * Create all the Work Queues (WQs) 6300 */ 6301 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 6302 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 6303 6304 /* Create slow-path ELS Work Queue */ 6305 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6306 phba->sli4_hba.wq_ecount); 6307 if (!qdesc) { 6308 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6309 "0504 Failed allocate slow-path ELS WQ\n"); 6310 goto out_free_mbx_wq; 6311 } 6312 phba->sli4_hba.els_wq = qdesc; 6313 6314 /* Create fast-path FCP Work Queue(s) */ 6315 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 6316 phba->cfg_fcp_wq_count), GFP_KERNEL); 6317 if (!phba->sli4_hba.fcp_wq) { 6318 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6319 "2578 Failed allocate memory for fast-path " 6320 "WQ record array\n"); 6321 goto out_free_els_wq; 6322 } 6323 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6324 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6325 phba->sli4_hba.wq_ecount); 6326 if (!qdesc) { 6327 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6328 "0503 Failed allocate fast-path FCP " 6329 "WQ (%d)\n", fcp_wqidx); 6330 goto out_free_fcp_wq; 6331 } 6332 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 6333 } 6334 6335 /* 6336 * Create Receive Queue (RQ) 6337 */ 6338 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 6339 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 6340 6341 /* Create Receive Queue for header */ 6342 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6343 phba->sli4_hba.rq_ecount); 6344 if (!qdesc) { 6345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6346 "0506 Failed allocate receive HRQ\n"); 6347 goto out_free_fcp_wq; 6348 } 6349 phba->sli4_hba.hdr_rq = qdesc; 6350 6351 /* Create Receive Queue for data */ 6352 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6353 phba->sli4_hba.rq_ecount); 6354 if (!qdesc) { 6355 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6356 "0507 Failed allocate receive DRQ\n"); 6357 goto out_free_hdr_rq; 6358 } 6359 phba->sli4_hba.dat_rq = qdesc; 6360 6361 return 0; 6362 6363out_free_hdr_rq: 6364 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6365 phba->sli4_hba.hdr_rq = NULL; 6366out_free_fcp_wq: 6367 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 6368 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 6369 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 6370 } 6371 kfree(phba->sli4_hba.fcp_wq); 6372out_free_els_wq: 6373 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6374 phba->sli4_hba.els_wq = NULL; 6375out_free_mbx_wq: 6376 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6377 phba->sli4_hba.mbx_wq = NULL; 6378out_free_fcp_cq: 6379 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 6380 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 6381 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 6382 } 6383 kfree(phba->sli4_hba.fcp_cq); 6384out_free_els_cq: 6385 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6386 phba->sli4_hba.els_cq = NULL; 6387out_free_mbx_cq: 6388 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6389 phba->sli4_hba.mbx_cq = NULL; 6390out_free_fp_eq: 6391 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 6392 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 6393 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 6394 } 6395 kfree(phba->sli4_hba.fp_eq); 6396out_free_sp_eq: 6397 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6398 phba->sli4_hba.sp_eq = NULL; 6399out_error: 6400 return -ENOMEM; 6401} 6402 6403/** 6404 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 6405 * @phba: pointer to lpfc hba data structure. 6406 * 6407 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 6408 * operation. 6409 * 6410 * Return codes 6411 * 0 - successful 6412 * -ENOMEM - No available memory 6413 * -EIO - The mailbox failed to complete successfully. 6414 **/ 6415static void 6416lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 6417{ 6418 int fcp_qidx; 6419 6420 /* Release mailbox command work queue */ 6421 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6422 phba->sli4_hba.mbx_wq = NULL; 6423 6424 /* Release ELS work queue */ 6425 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6426 phba->sli4_hba.els_wq = NULL; 6427 6428 /* Release FCP work queue */ 6429 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6430 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 6431 kfree(phba->sli4_hba.fcp_wq); 6432 phba->sli4_hba.fcp_wq = NULL; 6433 6434 /* Release unsolicited receive queue */ 6435 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6436 phba->sli4_hba.hdr_rq = NULL; 6437 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 6438 phba->sli4_hba.dat_rq = NULL; 6439 6440 /* Release ELS complete queue */ 6441 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6442 phba->sli4_hba.els_cq = NULL; 6443 6444 /* Release mailbox command complete queue */ 6445 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6446 phba->sli4_hba.mbx_cq = NULL; 6447 6448 /* Release FCP response complete queue */ 6449 fcp_qidx = 0; 6450 do 6451 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 6452 while (++fcp_qidx < phba->cfg_fcp_eq_count); 6453 kfree(phba->sli4_hba.fcp_cq); 6454 phba->sli4_hba.fcp_cq = NULL; 6455 6456 /* Release fast-path event queue */ 6457 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6458 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 6459 kfree(phba->sli4_hba.fp_eq); 6460 phba->sli4_hba.fp_eq = NULL; 6461 6462 /* Release slow-path event queue */ 6463 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6464 phba->sli4_hba.sp_eq = NULL; 6465 6466 return; 6467} 6468 6469/** 6470 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 6471 * @phba: pointer to lpfc hba data structure. 6472 * 6473 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 6474 * operation. 6475 * 6476 * Return codes 6477 * 0 - successful 6478 * -ENOMEM - No available memory 6479 * -EIO - The mailbox failed to complete successfully. 6480 **/ 6481int 6482lpfc_sli4_queue_setup(struct lpfc_hba *phba) 6483{ 6484 int rc = -ENOMEM; 6485 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6486 int fcp_cq_index = 0; 6487 6488 /* 6489 * Set up Event Queues (EQs) 6490 */ 6491 6492 /* Set up slow-path event queue */ 6493 if (!phba->sli4_hba.sp_eq) { 6494 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6495 "0520 Slow-path EQ not allocated\n"); 6496 goto out_error; 6497 } 6498 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 6499 LPFC_SP_DEF_IMAX); 6500 if (rc) { 6501 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6502 "0521 Failed setup of slow-path EQ: " 6503 "rc = 0x%x\n", rc); 6504 goto out_error; 6505 } 6506 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6507 "2583 Slow-path EQ setup: queue-id=%d\n", 6508 phba->sli4_hba.sp_eq->queue_id); 6509 6510 /* Set up fast-path event queue */ 6511 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6512 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 6513 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6514 "0522 Fast-path EQ (%d) not " 6515 "allocated\n", fcp_eqidx); 6516 goto out_destroy_fp_eq; 6517 } 6518 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 6519 phba->cfg_fcp_imax); 6520 if (rc) { 6521 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6522 "0523 Failed setup of fast-path EQ " 6523 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 6524 goto out_destroy_fp_eq; 6525 } 6526 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6527 "2584 Fast-path EQ setup: " 6528 "queue[%d]-id=%d\n", fcp_eqidx, 6529 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 6530 } 6531 6532 /* 6533 * Set up Complete Queues (CQs) 6534 */ 6535 6536 /* Set up slow-path MBOX Complete Queue as the first CQ */ 6537 if (!phba->sli4_hba.mbx_cq) { 6538 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6539 "0528 Mailbox CQ not allocated\n"); 6540 goto out_destroy_fp_eq; 6541 } 6542 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 6543 LPFC_MCQ, LPFC_MBOX); 6544 if (rc) { 6545 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6546 "0529 Failed setup of slow-path mailbox CQ: " 6547 "rc = 0x%x\n", rc); 6548 goto out_destroy_fp_eq; 6549 } 6550 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6551 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 6552 phba->sli4_hba.mbx_cq->queue_id, 6553 phba->sli4_hba.sp_eq->queue_id); 6554 6555 /* Set up slow-path ELS Complete Queue */ 6556 if (!phba->sli4_hba.els_cq) { 6557 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6558 "0530 ELS CQ not allocated\n"); 6559 goto out_destroy_mbx_cq; 6560 } 6561 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 6562 LPFC_WCQ, LPFC_ELS); 6563 if (rc) { 6564 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6565 "0531 Failed setup of slow-path ELS CQ: " 6566 "rc = 0x%x\n", rc); 6567 goto out_destroy_mbx_cq; 6568 } 6569 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6570 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 6571 phba->sli4_hba.els_cq->queue_id, 6572 phba->sli4_hba.sp_eq->queue_id); 6573 6574 /* Set up fast-path FCP Response Complete Queue */ 6575 fcp_cqidx = 0; 6576 do { 6577 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 6578 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6579 "0526 Fast-path FCP CQ (%d) not " 6580 "allocated\n", fcp_cqidx); 6581 goto out_destroy_fcp_cq; 6582 } 6583 if (phba->cfg_fcp_eq_count) 6584 rc = lpfc_cq_create(phba, 6585 phba->sli4_hba.fcp_cq[fcp_cqidx], 6586 phba->sli4_hba.fp_eq[fcp_cqidx], 6587 LPFC_WCQ, LPFC_FCP); 6588 else 6589 rc = lpfc_cq_create(phba, 6590 phba->sli4_hba.fcp_cq[fcp_cqidx], 6591 phba->sli4_hba.sp_eq, 6592 LPFC_WCQ, LPFC_FCP); 6593 if (rc) { 6594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6595 "0527 Failed setup of fast-path FCP " 6596 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 6597 goto out_destroy_fcp_cq; 6598 } 6599 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6600 "2588 FCP CQ setup: cq[%d]-id=%d, " 6601 "parent %seq[%d]-id=%d\n", 6602 fcp_cqidx, 6603 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 6604 (phba->cfg_fcp_eq_count) ? "" : "sp_", 6605 fcp_cqidx, 6606 (phba->cfg_fcp_eq_count) ? 6607 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id : 6608 phba->sli4_hba.sp_eq->queue_id); 6609 } while (++fcp_cqidx < phba->cfg_fcp_eq_count); 6610 6611 /* 6612 * Set up all the Work Queues (WQs) 6613 */ 6614 6615 /* Set up Mailbox Command Queue */ 6616 if (!phba->sli4_hba.mbx_wq) { 6617 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6618 "0538 Slow-path MQ not allocated\n"); 6619 goto out_destroy_fcp_cq; 6620 } 6621 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 6622 phba->sli4_hba.mbx_cq, LPFC_MBOX); 6623 if (rc) { 6624 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6625 "0539 Failed setup of slow-path MQ: " 6626 "rc = 0x%x\n", rc); 6627 goto out_destroy_fcp_cq; 6628 } 6629 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6630 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 6631 phba->sli4_hba.mbx_wq->queue_id, 6632 phba->sli4_hba.mbx_cq->queue_id); 6633 6634 /* Set up slow-path ELS Work Queue */ 6635 if (!phba->sli4_hba.els_wq) { 6636 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6637 "0536 Slow-path ELS WQ not allocated\n"); 6638 goto out_destroy_mbx_wq; 6639 } 6640 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 6641 phba->sli4_hba.els_cq, LPFC_ELS); 6642 if (rc) { 6643 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6644 "0537 Failed setup of slow-path ELS WQ: " 6645 "rc = 0x%x\n", rc); 6646 goto out_destroy_mbx_wq; 6647 } 6648 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6649 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 6650 phba->sli4_hba.els_wq->queue_id, 6651 phba->sli4_hba.els_cq->queue_id); 6652 6653 /* Set up fast-path FCP Work Queue */ 6654 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6655 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 6656 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6657 "0534 Fast-path FCP WQ (%d) not " 6658 "allocated\n", fcp_wqidx); 6659 goto out_destroy_fcp_wq; 6660 } 6661 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 6662 phba->sli4_hba.fcp_cq[fcp_cq_index], 6663 LPFC_FCP); 6664 if (rc) { 6665 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6666 "0535 Failed setup of fast-path FCP " 6667 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 6668 goto out_destroy_fcp_wq; 6669 } 6670 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6671 "2591 FCP WQ setup: wq[%d]-id=%d, " 6672 "parent cq[%d]-id=%d\n", 6673 fcp_wqidx, 6674 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 6675 fcp_cq_index, 6676 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 6677 /* Round robin FCP Work Queue's Completion Queue assignment */ 6678 if (phba->cfg_fcp_eq_count) 6679 fcp_cq_index = ((fcp_cq_index + 1) % 6680 phba->cfg_fcp_eq_count); 6681 } 6682 6683 /* 6684 * Create Receive Queue (RQ) 6685 */ 6686 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 6687 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6688 "0540 Receive Queue not allocated\n"); 6689 goto out_destroy_fcp_wq; 6690 } 6691 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 6692 phba->sli4_hba.els_cq, LPFC_USOL); 6693 if (rc) { 6694 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6695 "0541 Failed setup of Receive Queue: " 6696 "rc = 0x%x\n", rc); 6697 goto out_destroy_fcp_wq; 6698 } 6699 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6700 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 6701 "parent cq-id=%d\n", 6702 phba->sli4_hba.hdr_rq->queue_id, 6703 phba->sli4_hba.dat_rq->queue_id, 6704 phba->sli4_hba.els_cq->queue_id); 6705 return 0; 6706 6707out_destroy_fcp_wq: 6708 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 6709 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 6710 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6711out_destroy_mbx_wq: 6712 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6713out_destroy_fcp_cq: 6714 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 6715 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 6716 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6717out_destroy_mbx_cq: 6718 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6719out_destroy_fp_eq: 6720 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 6721 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 6722 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6723out_error: 6724 return rc; 6725} 6726 6727/** 6728 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 6729 * @phba: pointer to lpfc hba data structure. 6730 * 6731 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 6732 * operation. 6733 * 6734 * Return codes 6735 * 0 - successful 6736 * -ENOMEM - No available memory 6737 * -EIO - The mailbox failed to complete successfully. 6738 **/ 6739void 6740lpfc_sli4_queue_unset(struct lpfc_hba *phba) 6741{ 6742 int fcp_qidx; 6743 6744 /* Unset mailbox command work queue */ 6745 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6746 /* Unset ELS work queue */ 6747 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6748 /* Unset unsolicited receive queue */ 6749 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 6750 /* Unset FCP work queue */ 6751 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6752 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 6753 /* Unset mailbox command complete queue */ 6754 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6755 /* Unset ELS complete queue */ 6756 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6757 /* Unset FCP response complete queue */ 6758 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6759 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 6760 /* Unset fast-path event queue */ 6761 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6762 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 6763 /* Unset slow-path event queue */ 6764 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6765} 6766 6767/** 6768 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 6769 * @phba: pointer to lpfc hba data structure. 6770 * 6771 * This routine is invoked to allocate and set up a pool of completion queue 6772 * events. The body of the completion queue event is a completion queue entry 6773 * CQE. For now, this pool is used for the interrupt service routine to queue 6774 * the following HBA completion queue events for the worker thread to process: 6775 * - Mailbox asynchronous events 6776 * - Receive queue completion unsolicited events 6777 * Later, this can be used for all the slow-path events. 6778 * 6779 * Return codes 6780 * 0 - successful 6781 * -ENOMEM - No available memory 6782 **/ 6783static int 6784lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 6785{ 6786 struct lpfc_cq_event *cq_event; 6787 int i; 6788 6789 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 6790 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 6791 if (!cq_event) 6792 goto out_pool_create_fail; 6793 list_add_tail(&cq_event->list, 6794 &phba->sli4_hba.sp_cqe_event_pool); 6795 } 6796 return 0; 6797 6798out_pool_create_fail: 6799 lpfc_sli4_cq_event_pool_destroy(phba); 6800 return -ENOMEM; 6801} 6802 6803/** 6804 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 6805 * @phba: pointer to lpfc hba data structure. 6806 * 6807 * This routine is invoked to free the pool of completion queue events at 6808 * driver unload time. Note that, it is the responsibility of the driver 6809 * cleanup routine to free all the outstanding completion-queue events 6810 * allocated from this pool back into the pool before invoking this routine 6811 * to destroy the pool. 6812 **/ 6813static void 6814lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 6815{ 6816 struct lpfc_cq_event *cq_event, *next_cq_event; 6817 6818 list_for_each_entry_safe(cq_event, next_cq_event, 6819 &phba->sli4_hba.sp_cqe_event_pool, list) { 6820 list_del(&cq_event->list); 6821 kfree(cq_event); 6822 } 6823} 6824 6825/** 6826 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6827 * @phba: pointer to lpfc hba data structure. 6828 * 6829 * This routine is the lock free version of the API invoked to allocate a 6830 * completion-queue event from the free pool. 6831 * 6832 * Return: Pointer to the newly allocated completion-queue event if successful 6833 * NULL otherwise. 6834 **/ 6835struct lpfc_cq_event * 6836__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6837{ 6838 struct lpfc_cq_event *cq_event = NULL; 6839 6840 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 6841 struct lpfc_cq_event, list); 6842 return cq_event; 6843} 6844 6845/** 6846 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6847 * @phba: pointer to lpfc hba data structure. 6848 * 6849 * This routine is the lock version of the API invoked to allocate a 6850 * completion-queue event from the free pool. 6851 * 6852 * Return: Pointer to the newly allocated completion-queue event if successful 6853 * NULL otherwise. 6854 **/ 6855struct lpfc_cq_event * 6856lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6857{ 6858 struct lpfc_cq_event *cq_event; 6859 unsigned long iflags; 6860 6861 spin_lock_irqsave(&phba->hbalock, iflags); 6862 cq_event = __lpfc_sli4_cq_event_alloc(phba); 6863 spin_unlock_irqrestore(&phba->hbalock, iflags); 6864 return cq_event; 6865} 6866 6867/** 6868 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6869 * @phba: pointer to lpfc hba data structure. 6870 * @cq_event: pointer to the completion queue event to be freed. 6871 * 6872 * This routine is the lock free version of the API invoked to release a 6873 * completion-queue event back into the free pool. 6874 **/ 6875void 6876__lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6877 struct lpfc_cq_event *cq_event) 6878{ 6879 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 6880} 6881 6882/** 6883 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6884 * @phba: pointer to lpfc hba data structure. 6885 * @cq_event: pointer to the completion queue event to be freed. 6886 * 6887 * This routine is the lock version of the API invoked to release a 6888 * completion-queue event back into the free pool. 6889 **/ 6890void 6891lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6892 struct lpfc_cq_event *cq_event) 6893{ 6894 unsigned long iflags; 6895 spin_lock_irqsave(&phba->hbalock, iflags); 6896 __lpfc_sli4_cq_event_release(phba, cq_event); 6897 spin_unlock_irqrestore(&phba->hbalock, iflags); 6898} 6899 6900/** 6901 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 6902 * @phba: pointer to lpfc hba data structure. 6903 * 6904 * This routine is to free all the pending completion-queue events to the 6905 * back into the free pool for device reset. 6906 **/ 6907static void 6908lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 6909{ 6910 LIST_HEAD(cqelist); 6911 struct lpfc_cq_event *cqe; 6912 unsigned long iflags; 6913 6914 /* Retrieve all the pending WCQEs from pending WCQE lists */ 6915 spin_lock_irqsave(&phba->hbalock, iflags); 6916 /* Pending FCP XRI abort events */ 6917 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 6918 &cqelist); 6919 /* Pending ELS XRI abort events */ 6920 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 6921 &cqelist); 6922 /* Pending asynnc events */ 6923 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 6924 &cqelist); 6925 spin_unlock_irqrestore(&phba->hbalock, iflags); 6926 6927 while (!list_empty(&cqelist)) { 6928 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 6929 lpfc_sli4_cq_event_release(phba, cqe); 6930 } 6931} 6932 6933/** 6934 * lpfc_pci_function_reset - Reset pci function. 6935 * @phba: pointer to lpfc hba data structure. 6936 * 6937 * This routine is invoked to request a PCI function reset. It will destroys 6938 * all resources assigned to the PCI function which originates this request. 6939 * 6940 * Return codes 6941 * 0 - successful 6942 * -ENOMEM - No available memory 6943 * -EIO - The mailbox failed to complete successfully. 6944 **/ 6945int 6946lpfc_pci_function_reset(struct lpfc_hba *phba) 6947{ 6948 LPFC_MBOXQ_t *mboxq; 6949 uint32_t rc = 0, if_type; 6950 uint32_t shdr_status, shdr_add_status; 6951 uint32_t rdy_chk, num_resets = 0, reset_again = 0; 6952 union lpfc_sli4_cfg_shdr *shdr; 6953 struct lpfc_register reg_data; 6954 6955 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 6956 switch (if_type) { 6957 case LPFC_SLI_INTF_IF_TYPE_0: 6958 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6959 GFP_KERNEL); 6960 if (!mboxq) { 6961 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6962 "0494 Unable to allocate memory for " 6963 "issuing SLI_FUNCTION_RESET mailbox " 6964 "command\n"); 6965 return -ENOMEM; 6966 } 6967 6968 /* Setup PCI function reset mailbox-ioctl command */ 6969 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6970 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 6971 LPFC_SLI4_MBX_EMBED); 6972 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6973 shdr = (union lpfc_sli4_cfg_shdr *) 6974 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6975 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6976 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 6977 &shdr->response); 6978 if (rc != MBX_TIMEOUT) 6979 mempool_free(mboxq, phba->mbox_mem_pool); 6980 if (shdr_status || shdr_add_status || rc) { 6981 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6982 "0495 SLI_FUNCTION_RESET mailbox " 6983 "failed with status x%x add_status x%x," 6984 " mbx status x%x\n", 6985 shdr_status, shdr_add_status, rc); 6986 rc = -ENXIO; 6987 } 6988 break; 6989 case LPFC_SLI_INTF_IF_TYPE_2: 6990 for (num_resets = 0; 6991 num_resets < MAX_IF_TYPE_2_RESETS; 6992 num_resets++) { 6993 reg_data.word0 = 0; 6994 bf_set(lpfc_sliport_ctrl_end, ®_data, 6995 LPFC_SLIPORT_LITTLE_ENDIAN); 6996 bf_set(lpfc_sliport_ctrl_ip, ®_data, 6997 LPFC_SLIPORT_INIT_PORT); 6998 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 6999 CTRLregaddr); 7000 7001 /* 7002 * Poll the Port Status Register and wait for RDY for 7003 * up to 10 seconds. If the port doesn't respond, treat 7004 * it as an error. If the port responds with RN, start 7005 * the loop again. 7006 */ 7007 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { 7008 if (lpfc_readl(phba->sli4_hba.u.if_type2. 7009 STATUSregaddr, ®_data.word0)) { 7010 rc = -ENODEV; 7011 break; 7012 } 7013 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 7014 break; 7015 if (bf_get(lpfc_sliport_status_rn, ®_data)) { 7016 reset_again++; 7017 break; 7018 } 7019 msleep(10); 7020 } 7021 7022 /* 7023 * If the port responds to the init request with 7024 * reset needed, delay for a bit and restart the loop. 7025 */ 7026 if (reset_again) { 7027 msleep(10); 7028 reset_again = 0; 7029 continue; 7030 } 7031 7032 /* Detect any port errors. */ 7033 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 7034 ®_data.word0)) { 7035 rc = -ENODEV; 7036 break; 7037 } 7038 if ((bf_get(lpfc_sliport_status_err, ®_data)) || 7039 (rdy_chk >= 1000)) { 7040 phba->work_status[0] = readl( 7041 phba->sli4_hba.u.if_type2.ERR1regaddr); 7042 phba->work_status[1] = readl( 7043 phba->sli4_hba.u.if_type2.ERR2regaddr); 7044 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7045 "2890 Port Error Detected " 7046 "during Port Reset: " 7047 "port status reg 0x%x, " 7048 "error 1=0x%x, error 2=0x%x\n", 7049 reg_data.word0, 7050 phba->work_status[0], 7051 phba->work_status[1]); 7052 rc = -ENODEV; 7053 } 7054 7055 /* 7056 * Terminate the outer loop provided the Port indicated 7057 * ready within 10 seconds. 7058 */ 7059 if (rdy_chk < 1000) 7060 break; 7061 } 7062 /* delay driver action following IF_TYPE_2 function reset */ 7063 msleep(100); 7064 break; 7065 case LPFC_SLI_INTF_IF_TYPE_1: 7066 default: 7067 break; 7068 } 7069 7070 /* Catch the not-ready port failure after a port reset. */ 7071 if (num_resets >= MAX_IF_TYPE_2_RESETS) 7072 rc = -ENODEV; 7073 7074 return rc; 7075} 7076 7077/** 7078 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 7079 * @phba: pointer to lpfc hba data structure. 7080 * @cnt: number of nop mailbox commands to send. 7081 * 7082 * This routine is invoked to send a number @cnt of NOP mailbox command and 7083 * wait for each command to complete. 7084 * 7085 * Return: the number of NOP mailbox command completed. 7086 **/ 7087static int 7088lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 7089{ 7090 LPFC_MBOXQ_t *mboxq; 7091 int length, cmdsent; 7092 uint32_t mbox_tmo; 7093 uint32_t rc = 0; 7094 uint32_t shdr_status, shdr_add_status; 7095 union lpfc_sli4_cfg_shdr *shdr; 7096 7097 if (cnt == 0) { 7098 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7099 "2518 Requested to send 0 NOP mailbox cmd\n"); 7100 return cnt; 7101 } 7102 7103 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7104 if (!mboxq) { 7105 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7106 "2519 Unable to allocate memory for issuing " 7107 "NOP mailbox command\n"); 7108 return 0; 7109 } 7110 7111 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 7112 length = (sizeof(struct lpfc_mbx_nop) - 7113 sizeof(struct lpfc_sli4_cfg_mhdr)); 7114 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7115 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 7116 7117 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 7118 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 7119 if (!phba->sli4_hba.intr_enable) 7120 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7121 else 7122 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7123 if (rc == MBX_TIMEOUT) 7124 break; 7125 /* Check return status */ 7126 shdr = (union lpfc_sli4_cfg_shdr *) 7127 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7128 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7129 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7130 &shdr->response); 7131 if (shdr_status || shdr_add_status || rc) { 7132 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7133 "2520 NOP mailbox command failed " 7134 "status x%x add_status x%x mbx " 7135 "status x%x\n", shdr_status, 7136 shdr_add_status, rc); 7137 break; 7138 } 7139 } 7140 7141 if (rc != MBX_TIMEOUT) 7142 mempool_free(mboxq, phba->mbox_mem_pool); 7143 7144 return cmdsent; 7145} 7146 7147/** 7148 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 7149 * @phba: pointer to lpfc hba data structure. 7150 * 7151 * This routine is invoked to set up the PCI device memory space for device 7152 * with SLI-4 interface spec. 7153 * 7154 * Return codes 7155 * 0 - successful 7156 * other values - error 7157 **/ 7158static int 7159lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 7160{ 7161 struct pci_dev *pdev; 7162 unsigned long bar0map_len, bar1map_len, bar2map_len; 7163 int error = -ENODEV; 7164 uint32_t if_type; 7165 7166 /* Obtain PCI device reference */ 7167 if (!phba->pcidev) 7168 return error; 7169 else 7170 pdev = phba->pcidev; 7171 7172 /* Set the device DMA mask size */ 7173 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7174 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7175 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7176 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7177 return error; 7178 } 7179 } 7180 7181 /* 7182 * The BARs and register set definitions and offset locations are 7183 * dependent on the if_type. 7184 */ 7185 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 7186 &phba->sli4_hba.sli_intf.word0)) { 7187 return error; 7188 } 7189 7190 /* There is no SLI3 failback for SLI4 devices. */ 7191 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 7192 LPFC_SLI_INTF_VALID) { 7193 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7194 "2894 SLI_INTF reg contents invalid " 7195 "sli_intf reg 0x%x\n", 7196 phba->sli4_hba.sli_intf.word0); 7197 return error; 7198 } 7199 7200 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7201 /* 7202 * Get the bus address of SLI4 device Bar regions and the 7203 * number of bytes required by each mapping. The mapping of the 7204 * particular PCI BARs regions is dependent on the type of 7205 * SLI4 device. 7206 */ 7207 if (pci_resource_start(pdev, 0)) { 7208 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7209 bar0map_len = pci_resource_len(pdev, 0); 7210 7211 /* 7212 * Map SLI4 PCI Config Space Register base to a kernel virtual 7213 * addr 7214 */ 7215 phba->sli4_hba.conf_regs_memmap_p = 7216 ioremap(phba->pci_bar0_map, bar0map_len); 7217 if (!phba->sli4_hba.conf_regs_memmap_p) { 7218 dev_printk(KERN_ERR, &pdev->dev, 7219 "ioremap failed for SLI4 PCI config " 7220 "registers.\n"); 7221 goto out; 7222 } 7223 /* Set up BAR0 PCI config space register memory map */ 7224 lpfc_sli4_bar0_register_memmap(phba, if_type); 7225 } else { 7226 phba->pci_bar0_map = pci_resource_start(pdev, 1); 7227 bar0map_len = pci_resource_len(pdev, 1); 7228 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7229 dev_printk(KERN_ERR, &pdev->dev, 7230 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 7231 goto out; 7232 } 7233 phba->sli4_hba.conf_regs_memmap_p = 7234 ioremap(phba->pci_bar0_map, bar0map_len); 7235 if (!phba->sli4_hba.conf_regs_memmap_p) { 7236 dev_printk(KERN_ERR, &pdev->dev, 7237 "ioremap failed for SLI4 PCI config " 7238 "registers.\n"); 7239 goto out; 7240 } 7241 lpfc_sli4_bar0_register_memmap(phba, if_type); 7242 } 7243 7244 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7245 (pci_resource_start(pdev, 2))) { 7246 /* 7247 * Map SLI4 if type 0 HBA Control Register base to a kernel 7248 * virtual address and setup the registers. 7249 */ 7250 phba->pci_bar1_map = pci_resource_start(pdev, 2); 7251 bar1map_len = pci_resource_len(pdev, 2); 7252 phba->sli4_hba.ctrl_regs_memmap_p = 7253 ioremap(phba->pci_bar1_map, bar1map_len); 7254 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 7255 dev_printk(KERN_ERR, &pdev->dev, 7256 "ioremap failed for SLI4 HBA control registers.\n"); 7257 goto out_iounmap_conf; 7258 } 7259 lpfc_sli4_bar1_register_memmap(phba); 7260 } 7261 7262 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7263 (pci_resource_start(pdev, 4))) { 7264 /* 7265 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 7266 * virtual address and setup the registers. 7267 */ 7268 phba->pci_bar2_map = pci_resource_start(pdev, 4); 7269 bar2map_len = pci_resource_len(pdev, 4); 7270 phba->sli4_hba.drbl_regs_memmap_p = 7271 ioremap(phba->pci_bar2_map, bar2map_len); 7272 if (!phba->sli4_hba.drbl_regs_memmap_p) { 7273 dev_printk(KERN_ERR, &pdev->dev, 7274 "ioremap failed for SLI4 HBA doorbell registers.\n"); 7275 goto out_iounmap_ctrl; 7276 } 7277 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 7278 if (error) 7279 goto out_iounmap_all; 7280 } 7281 7282 return 0; 7283 7284out_iounmap_all: 7285 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7286out_iounmap_ctrl: 7287 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7288out_iounmap_conf: 7289 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7290out: 7291 return error; 7292} 7293 7294/** 7295 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 7296 * @phba: pointer to lpfc hba data structure. 7297 * 7298 * This routine is invoked to unset the PCI device memory space for device 7299 * with SLI-4 interface spec. 7300 **/ 7301static void 7302lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 7303{ 7304 struct pci_dev *pdev; 7305 7306 /* Obtain PCI device reference */ 7307 if (!phba->pcidev) 7308 return; 7309 else 7310 pdev = phba->pcidev; 7311 7312 /* Free coherent DMA memory allocated */ 7313 7314 /* Unmap I/O memory space */ 7315 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7316 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7317 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7318 7319 return; 7320} 7321 7322/** 7323 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 7324 * @phba: pointer to lpfc hba data structure. 7325 * 7326 * This routine is invoked to enable the MSI-X interrupt vectors to device 7327 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 7328 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 7329 * invoked, enables either all or nothing, depending on the current 7330 * availability of PCI vector resources. The device driver is responsible 7331 * for calling the individual request_irq() to register each MSI-X vector 7332 * with a interrupt handler, which is done in this function. Note that 7333 * later when device is unloading, the driver should always call free_irq() 7334 * on all MSI-X vectors it has done request_irq() on before calling 7335 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 7336 * will be left with MSI-X enabled and leaks its vectors. 7337 * 7338 * Return codes 7339 * 0 - successful 7340 * other values - error 7341 **/ 7342static int 7343lpfc_sli_enable_msix(struct lpfc_hba *phba) 7344{ 7345 int rc, i; 7346 LPFC_MBOXQ_t *pmb; 7347 7348 /* Set up MSI-X multi-message vectors */ 7349 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7350 phba->msix_entries[i].entry = i; 7351 7352 /* Configure MSI-X capability structure */ 7353 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 7354 ARRAY_SIZE(phba->msix_entries)); 7355 if (rc) { 7356 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7357 "0420 PCI enable MSI-X failed (%d)\n", rc); 7358 goto msi_fail_out; 7359 } 7360 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7361 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7362 "0477 MSI-X entry[%d]: vector=x%x " 7363 "message=%d\n", i, 7364 phba->msix_entries[i].vector, 7365 phba->msix_entries[i].entry); 7366 /* 7367 * Assign MSI-X vectors to interrupt handlers 7368 */ 7369 7370 /* vector-0 is associated to slow-path handler */ 7371 rc = request_irq(phba->msix_entries[0].vector, 7372 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 7373 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7374 if (rc) { 7375 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7376 "0421 MSI-X slow-path request_irq failed " 7377 "(%d)\n", rc); 7378 goto msi_fail_out; 7379 } 7380 7381 /* vector-1 is associated to fast-path handler */ 7382 rc = request_irq(phba->msix_entries[1].vector, 7383 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 7384 LPFC_FP_DRIVER_HANDLER_NAME, phba); 7385 7386 if (rc) { 7387 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7388 "0429 MSI-X fast-path request_irq failed " 7389 "(%d)\n", rc); 7390 goto irq_fail_out; 7391 } 7392 7393 /* 7394 * Configure HBA MSI-X attention conditions to messages 7395 */ 7396 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7397 7398 if (!pmb) { 7399 rc = -ENOMEM; 7400 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7401 "0474 Unable to allocate memory for issuing " 7402 "MBOX_CONFIG_MSI command\n"); 7403 goto mem_fail_out; 7404 } 7405 rc = lpfc_config_msi(phba, pmb); 7406 if (rc) 7407 goto mbx_fail_out; 7408 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7409 if (rc != MBX_SUCCESS) { 7410 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 7411 "0351 Config MSI mailbox command failed, " 7412 "mbxCmd x%x, mbxStatus x%x\n", 7413 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 7414 goto mbx_fail_out; 7415 } 7416 7417 /* Free memory allocated for mailbox command */ 7418 mempool_free(pmb, phba->mbox_mem_pool); 7419 return rc; 7420 7421mbx_fail_out: 7422 /* Free memory allocated for mailbox command */ 7423 mempool_free(pmb, phba->mbox_mem_pool); 7424 7425mem_fail_out: 7426 /* free the irq already requested */ 7427 free_irq(phba->msix_entries[1].vector, phba); 7428 7429irq_fail_out: 7430 /* free the irq already requested */ 7431 free_irq(phba->msix_entries[0].vector, phba); 7432 7433msi_fail_out: 7434 /* Unconfigure MSI-X capability structure */ 7435 pci_disable_msix(phba->pcidev); 7436 return rc; 7437} 7438 7439/** 7440 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 7441 * @phba: pointer to lpfc hba data structure. 7442 * 7443 * This routine is invoked to release the MSI-X vectors and then disable the 7444 * MSI-X interrupt mode to device with SLI-3 interface spec. 7445 **/ 7446static void 7447lpfc_sli_disable_msix(struct lpfc_hba *phba) 7448{ 7449 int i; 7450 7451 /* Free up MSI-X multi-message vectors */ 7452 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7453 free_irq(phba->msix_entries[i].vector, phba); 7454 /* Disable MSI-X */ 7455 pci_disable_msix(phba->pcidev); 7456 7457 return; 7458} 7459 7460/** 7461 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 7462 * @phba: pointer to lpfc hba data structure. 7463 * 7464 * This routine is invoked to enable the MSI interrupt mode to device with 7465 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 7466 * enable the MSI vector. The device driver is responsible for calling the 7467 * request_irq() to register MSI vector with a interrupt the handler, which 7468 * is done in this function. 7469 * 7470 * Return codes 7471 * 0 - successful 7472 * other values - error 7473 */ 7474static int 7475lpfc_sli_enable_msi(struct lpfc_hba *phba) 7476{ 7477 int rc; 7478 7479 rc = pci_enable_msi(phba->pcidev); 7480 if (!rc) 7481 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7482 "0462 PCI enable MSI mode success.\n"); 7483 else { 7484 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7485 "0471 PCI enable MSI mode failed (%d)\n", rc); 7486 return rc; 7487 } 7488 7489 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 7490 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7491 if (rc) { 7492 pci_disable_msi(phba->pcidev); 7493 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7494 "0478 MSI request_irq failed (%d)\n", rc); 7495 } 7496 return rc; 7497} 7498 7499/** 7500 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 7501 * @phba: pointer to lpfc hba data structure. 7502 * 7503 * This routine is invoked to disable the MSI interrupt mode to device with 7504 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 7505 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7506 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7507 * its vector. 7508 */ 7509static void 7510lpfc_sli_disable_msi(struct lpfc_hba *phba) 7511{ 7512 free_irq(phba->pcidev->irq, phba); 7513 pci_disable_msi(phba->pcidev); 7514 return; 7515} 7516 7517/** 7518 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 7519 * @phba: pointer to lpfc hba data structure. 7520 * 7521 * This routine is invoked to enable device interrupt and associate driver's 7522 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 7523 * spec. Depends on the interrupt mode configured to the driver, the driver 7524 * will try to fallback from the configured interrupt mode to an interrupt 7525 * mode which is supported by the platform, kernel, and device in the order 7526 * of: 7527 * MSI-X -> MSI -> IRQ. 7528 * 7529 * Return codes 7530 * 0 - successful 7531 * other values - error 7532 **/ 7533static uint32_t 7534lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7535{ 7536 uint32_t intr_mode = LPFC_INTR_ERROR; 7537 int retval; 7538 7539 if (cfg_mode == 2) { 7540 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 7541 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 7542 if (!retval) { 7543 /* Now, try to enable MSI-X interrupt mode */ 7544 retval = lpfc_sli_enable_msix(phba); 7545 if (!retval) { 7546 /* Indicate initialization to MSI-X mode */ 7547 phba->intr_type = MSIX; 7548 intr_mode = 2; 7549 } 7550 } 7551 } 7552 7553 /* Fallback to MSI if MSI-X initialization failed */ 7554 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7555 retval = lpfc_sli_enable_msi(phba); 7556 if (!retval) { 7557 /* Indicate initialization to MSI mode */ 7558 phba->intr_type = MSI; 7559 intr_mode = 1; 7560 } 7561 } 7562 7563 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7564 if (phba->intr_type == NONE) { 7565 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 7566 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7567 if (!retval) { 7568 /* Indicate initialization to INTx mode */ 7569 phba->intr_type = INTx; 7570 intr_mode = 0; 7571 } 7572 } 7573 return intr_mode; 7574} 7575 7576/** 7577 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 7578 * @phba: pointer to lpfc hba data structure. 7579 * 7580 * This routine is invoked to disable device interrupt and disassociate the 7581 * driver's interrupt handler(s) from interrupt vector(s) to device with 7582 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 7583 * release the interrupt vector(s) for the message signaled interrupt. 7584 **/ 7585static void 7586lpfc_sli_disable_intr(struct lpfc_hba *phba) 7587{ 7588 /* Disable the currently initialized interrupt mode */ 7589 if (phba->intr_type == MSIX) 7590 lpfc_sli_disable_msix(phba); 7591 else if (phba->intr_type == MSI) 7592 lpfc_sli_disable_msi(phba); 7593 else if (phba->intr_type == INTx) 7594 free_irq(phba->pcidev->irq, phba); 7595 7596 /* Reset interrupt management states */ 7597 phba->intr_type = NONE; 7598 phba->sli.slistat.sli_intr = 0; 7599 7600 return; 7601} 7602 7603/** 7604 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 7605 * @phba: pointer to lpfc hba data structure. 7606 * 7607 * This routine is invoked to enable the MSI-X interrupt vectors to device 7608 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 7609 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 7610 * enables either all or nothing, depending on the current availability of 7611 * PCI vector resources. The device driver is responsible for calling the 7612 * individual request_irq() to register each MSI-X vector with a interrupt 7613 * handler, which is done in this function. Note that later when device is 7614 * unloading, the driver should always call free_irq() on all MSI-X vectors 7615 * it has done request_irq() on before calling pci_disable_msix(). Failure 7616 * to do so results in a BUG_ON() and a device will be left with MSI-X 7617 * enabled and leaks its vectors. 7618 * 7619 * Return codes 7620 * 0 - successful 7621 * other values - error 7622 **/ 7623static int 7624lpfc_sli4_enable_msix(struct lpfc_hba *phba) 7625{ 7626 int vectors, rc, index; 7627 7628 /* Set up MSI-X multi-message vectors */ 7629 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 7630 phba->sli4_hba.msix_entries[index].entry = index; 7631 7632 /* Configure MSI-X capability structure */ 7633 vectors = phba->sli4_hba.cfg_eqn; 7634enable_msix_vectors: 7635 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 7636 vectors); 7637 if (rc > 1) { 7638 vectors = rc; 7639 goto enable_msix_vectors; 7640 } else if (rc) { 7641 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7642 "0484 PCI enable MSI-X failed (%d)\n", rc); 7643 goto msi_fail_out; 7644 } 7645 7646 /* Log MSI-X vector assignment */ 7647 for (index = 0; index < vectors; index++) 7648 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7649 "0489 MSI-X entry[%d]: vector=x%x " 7650 "message=%d\n", index, 7651 phba->sli4_hba.msix_entries[index].vector, 7652 phba->sli4_hba.msix_entries[index].entry); 7653 /* 7654 * Assign MSI-X vectors to interrupt handlers 7655 */ 7656 if (vectors > 1) 7657 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7658 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 7659 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7660 else 7661 /* All Interrupts need to be handled by one EQ */ 7662 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7663 &lpfc_sli4_intr_handler, IRQF_SHARED, 7664 LPFC_DRIVER_NAME, phba); 7665 if (rc) { 7666 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7667 "0485 MSI-X slow-path request_irq failed " 7668 "(%d)\n", rc); 7669 goto msi_fail_out; 7670 } 7671 7672 /* The rest of the vector(s) are associated to fast-path handler(s) */ 7673 for (index = 1; index < vectors; index++) { 7674 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 7675 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 7676 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 7677 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 7678 LPFC_FP_DRIVER_HANDLER_NAME, 7679 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7680 if (rc) { 7681 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7682 "0486 MSI-X fast-path (%d) " 7683 "request_irq failed (%d)\n", index, rc); 7684 goto cfg_fail_out; 7685 } 7686 } 7687 phba->sli4_hba.msix_vec_nr = vectors; 7688 7689 return rc; 7690 7691cfg_fail_out: 7692 /* free the irq already requested */ 7693 for (--index; index >= 1; index--) 7694 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 7695 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7696 7697 /* free the irq already requested */ 7698 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7699 7700msi_fail_out: 7701 /* Unconfigure MSI-X capability structure */ 7702 pci_disable_msix(phba->pcidev); 7703 return rc; 7704} 7705 7706/** 7707 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 7708 * @phba: pointer to lpfc hba data structure. 7709 * 7710 * This routine is invoked to release the MSI-X vectors and then disable the 7711 * MSI-X interrupt mode to device with SLI-4 interface spec. 7712 **/ 7713static void 7714lpfc_sli4_disable_msix(struct lpfc_hba *phba) 7715{ 7716 int index; 7717 7718 /* Free up MSI-X multi-message vectors */ 7719 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7720 7721 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++) 7722 free_irq(phba->sli4_hba.msix_entries[index].vector, 7723 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7724 7725 /* Disable MSI-X */ 7726 pci_disable_msix(phba->pcidev); 7727 7728 return; 7729} 7730 7731/** 7732 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 7733 * @phba: pointer to lpfc hba data structure. 7734 * 7735 * This routine is invoked to enable the MSI interrupt mode to device with 7736 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 7737 * to enable the MSI vector. The device driver is responsible for calling 7738 * the request_irq() to register MSI vector with a interrupt the handler, 7739 * which is done in this function. 7740 * 7741 * Return codes 7742 * 0 - successful 7743 * other values - error 7744 **/ 7745static int 7746lpfc_sli4_enable_msi(struct lpfc_hba *phba) 7747{ 7748 int rc, index; 7749 7750 rc = pci_enable_msi(phba->pcidev); 7751 if (!rc) 7752 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7753 "0487 PCI enable MSI mode success.\n"); 7754 else { 7755 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7756 "0488 PCI enable MSI mode failed (%d)\n", rc); 7757 return rc; 7758 } 7759 7760 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7761 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7762 if (rc) { 7763 pci_disable_msi(phba->pcidev); 7764 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7765 "0490 MSI request_irq failed (%d)\n", rc); 7766 return rc; 7767 } 7768 7769 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 7770 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7771 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7772 } 7773 7774 return 0; 7775} 7776 7777/** 7778 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 7779 * @phba: pointer to lpfc hba data structure. 7780 * 7781 * This routine is invoked to disable the MSI interrupt mode to device with 7782 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 7783 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7784 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7785 * its vector. 7786 **/ 7787static void 7788lpfc_sli4_disable_msi(struct lpfc_hba *phba) 7789{ 7790 free_irq(phba->pcidev->irq, phba); 7791 pci_disable_msi(phba->pcidev); 7792 return; 7793} 7794 7795/** 7796 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 7797 * @phba: pointer to lpfc hba data structure. 7798 * 7799 * This routine is invoked to enable device interrupt and associate driver's 7800 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 7801 * interface spec. Depends on the interrupt mode configured to the driver, 7802 * the driver will try to fallback from the configured interrupt mode to an 7803 * interrupt mode which is supported by the platform, kernel, and device in 7804 * the order of: 7805 * MSI-X -> MSI -> IRQ. 7806 * 7807 * Return codes 7808 * 0 - successful 7809 * other values - error 7810 **/ 7811static uint32_t 7812lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7813{ 7814 uint32_t intr_mode = LPFC_INTR_ERROR; 7815 int retval, index; 7816 7817 if (cfg_mode == 2) { 7818 /* Preparation before conf_msi mbox cmd */ 7819 retval = 0; 7820 if (!retval) { 7821 /* Now, try to enable MSI-X interrupt mode */ 7822 retval = lpfc_sli4_enable_msix(phba); 7823 if (!retval) { 7824 /* Indicate initialization to MSI-X mode */ 7825 phba->intr_type = MSIX; 7826 intr_mode = 2; 7827 } 7828 } 7829 } 7830 7831 /* Fallback to MSI if MSI-X initialization failed */ 7832 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7833 retval = lpfc_sli4_enable_msi(phba); 7834 if (!retval) { 7835 /* Indicate initialization to MSI mode */ 7836 phba->intr_type = MSI; 7837 intr_mode = 1; 7838 } 7839 } 7840 7841 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7842 if (phba->intr_type == NONE) { 7843 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7844 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7845 if (!retval) { 7846 /* Indicate initialization to INTx mode */ 7847 phba->intr_type = INTx; 7848 intr_mode = 0; 7849 for (index = 0; index < phba->cfg_fcp_eq_count; 7850 index++) { 7851 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7852 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7853 } 7854 } 7855 } 7856 return intr_mode; 7857} 7858 7859/** 7860 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 7861 * @phba: pointer to lpfc hba data structure. 7862 * 7863 * This routine is invoked to disable device interrupt and disassociate 7864 * the driver's interrupt handler(s) from interrupt vector(s) to device 7865 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 7866 * will release the interrupt vector(s) for the message signaled interrupt. 7867 **/ 7868static void 7869lpfc_sli4_disable_intr(struct lpfc_hba *phba) 7870{ 7871 /* Disable the currently initialized interrupt mode */ 7872 if (phba->intr_type == MSIX) 7873 lpfc_sli4_disable_msix(phba); 7874 else if (phba->intr_type == MSI) 7875 lpfc_sli4_disable_msi(phba); 7876 else if (phba->intr_type == INTx) 7877 free_irq(phba->pcidev->irq, phba); 7878 7879 /* Reset interrupt management states */ 7880 phba->intr_type = NONE; 7881 phba->sli.slistat.sli_intr = 0; 7882 7883 return; 7884} 7885 7886/** 7887 * lpfc_unset_hba - Unset SLI3 hba device initialization 7888 * @phba: pointer to lpfc hba data structure. 7889 * 7890 * This routine is invoked to unset the HBA device initialization steps to 7891 * a device with SLI-3 interface spec. 7892 **/ 7893static void 7894lpfc_unset_hba(struct lpfc_hba *phba) 7895{ 7896 struct lpfc_vport *vport = phba->pport; 7897 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7898 7899 spin_lock_irq(shost->host_lock); 7900 vport->load_flag |= FC_UNLOADING; 7901 spin_unlock_irq(shost->host_lock); 7902 7903 lpfc_stop_hba_timers(phba); 7904 7905 phba->pport->work_port_events = 0; 7906 7907 lpfc_sli_hba_down(phba); 7908 7909 lpfc_sli_brdrestart(phba); 7910 7911 lpfc_sli_disable_intr(phba); 7912 7913 return; 7914} 7915 7916/** 7917 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 7918 * @phba: pointer to lpfc hba data structure. 7919 * 7920 * This routine is invoked to unset the HBA device initialization steps to 7921 * a device with SLI-4 interface spec. 7922 **/ 7923static void 7924lpfc_sli4_unset_hba(struct lpfc_hba *phba) 7925{ 7926 struct lpfc_vport *vport = phba->pport; 7927 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7928 7929 spin_lock_irq(shost->host_lock); 7930 vport->load_flag |= FC_UNLOADING; 7931 spin_unlock_irq(shost->host_lock); 7932 7933 phba->pport->work_port_events = 0; 7934 7935 /* Stop the SLI4 device port */ 7936 lpfc_stop_port(phba); 7937 7938 lpfc_sli4_disable_intr(phba); 7939 7940 /* Reset SLI4 HBA FCoE function */ 7941 lpfc_pci_function_reset(phba); 7942 7943 return; 7944} 7945 7946/** 7947 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 7948 * @phba: Pointer to HBA context object. 7949 * 7950 * This function is called in the SLI4 code path to wait for completion 7951 * of device's XRIs exchange busy. It will check the XRI exchange busy 7952 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 7953 * that, it will check the XRI exchange busy on outstanding FCP and ELS 7954 * I/Os every 30 seconds, log error message, and wait forever. Only when 7955 * all XRI exchange busy complete, the driver unload shall proceed with 7956 * invoking the function reset ioctl mailbox command to the CNA and the 7957 * the rest of the driver unload resource release. 7958 **/ 7959static void 7960lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 7961{ 7962 int wait_time = 0; 7963 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 7964 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 7965 7966 while (!fcp_xri_cmpl || !els_xri_cmpl) { 7967 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 7968 if (!fcp_xri_cmpl) 7969 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7970 "2877 FCP XRI exchange busy " 7971 "wait time: %d seconds.\n", 7972 wait_time/1000); 7973 if (!els_xri_cmpl) 7974 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7975 "2878 ELS XRI exchange busy " 7976 "wait time: %d seconds.\n", 7977 wait_time/1000); 7978 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 7979 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 7980 } else { 7981 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 7982 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 7983 } 7984 fcp_xri_cmpl = 7985 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 7986 els_xri_cmpl = 7987 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 7988 } 7989} 7990 7991/** 7992 * lpfc_sli4_hba_unset - Unset the fcoe hba 7993 * @phba: Pointer to HBA context object. 7994 * 7995 * This function is called in the SLI4 code path to reset the HBA's FCoE 7996 * function. The caller is not required to hold any lock. This routine 7997 * issues PCI function reset mailbox command to reset the FCoE function. 7998 * At the end of the function, it calls lpfc_hba_down_post function to 7999 * free any pending commands. 8000 **/ 8001static void 8002lpfc_sli4_hba_unset(struct lpfc_hba *phba) 8003{ 8004 int wait_cnt = 0; 8005 LPFC_MBOXQ_t *mboxq; 8006 struct pci_dev *pdev = phba->pcidev; 8007 8008 lpfc_stop_hba_timers(phba); 8009 phba->sli4_hba.intr_enable = 0; 8010 8011 /* 8012 * Gracefully wait out the potential current outstanding asynchronous 8013 * mailbox command. 8014 */ 8015 8016 /* First, block any pending async mailbox command from posted */ 8017 spin_lock_irq(&phba->hbalock); 8018 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 8019 spin_unlock_irq(&phba->hbalock); 8020 /* Now, trying to wait it out if we can */ 8021 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8022 msleep(10); 8023 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 8024 break; 8025 } 8026 /* Forcefully release the outstanding mailbox command if timed out */ 8027 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8028 spin_lock_irq(&phba->hbalock); 8029 mboxq = phba->sli.mbox_active; 8030 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 8031 __lpfc_mbox_cmpl_put(phba, mboxq); 8032 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 8033 phba->sli.mbox_active = NULL; 8034 spin_unlock_irq(&phba->hbalock); 8035 } 8036 8037 /* Abort all iocbs associated with the hba */ 8038 lpfc_sli_hba_iocb_abort(phba); 8039 8040 /* Wait for completion of device XRI exchange busy */ 8041 lpfc_sli4_xri_exchange_busy_wait(phba); 8042 8043 /* Disable PCI subsystem interrupt */ 8044 lpfc_sli4_disable_intr(phba); 8045 8046 /* Disable SR-IOV if enabled */ 8047 if (phba->cfg_sriov_nr_virtfn) 8048 pci_disable_sriov(pdev); 8049 8050 /* Stop kthread signal shall trigger work_done one more time */ 8051 kthread_stop(phba->worker_thread); 8052 8053 /* Reset SLI4 HBA FCoE function */ 8054 lpfc_pci_function_reset(phba); 8055 8056 /* Stop the SLI4 device port */ 8057 phba->pport->work_port_events = 0; 8058} 8059 8060 /** 8061 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 8062 * @phba: Pointer to HBA context object. 8063 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8064 * 8065 * This function is called in the SLI4 code path to read the port's 8066 * sli4 capabilities. 8067 * 8068 * This function may be be called from any context that can block-wait 8069 * for the completion. The expectation is that this routine is called 8070 * typically from probe_one or from the online routine. 8071 **/ 8072int 8073lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8074{ 8075 int rc; 8076 struct lpfc_mqe *mqe; 8077 struct lpfc_pc_sli4_params *sli4_params; 8078 uint32_t mbox_tmo; 8079 8080 rc = 0; 8081 mqe = &mboxq->u.mqe; 8082 8083 /* Read the port's SLI4 Parameters port capabilities */ 8084 lpfc_pc_sli4_params(mboxq); 8085 if (!phba->sli4_hba.intr_enable) 8086 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8087 else { 8088 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES); 8089 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 8090 } 8091 8092 if (unlikely(rc)) 8093 return 1; 8094 8095 sli4_params = &phba->sli4_hba.pc_sli4_params; 8096 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 8097 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 8098 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 8099 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 8100 &mqe->un.sli4_params); 8101 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 8102 &mqe->un.sli4_params); 8103 sli4_params->proto_types = mqe->un.sli4_params.word3; 8104 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 8105 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 8106 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 8107 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 8108 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 8109 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 8110 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 8111 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 8112 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 8113 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 8114 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 8115 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 8116 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 8117 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 8118 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 8119 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 8120 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 8121 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 8122 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 8123 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 8124 8125 /* Make sure that sge_supp_len can be handled by the driver */ 8126 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8127 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8128 8129 return rc; 8130} 8131 8132/** 8133 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 8134 * @phba: Pointer to HBA context object. 8135 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8136 * 8137 * This function is called in the SLI4 code path to read the port's 8138 * sli4 capabilities. 8139 * 8140 * This function may be be called from any context that can block-wait 8141 * for the completion. The expectation is that this routine is called 8142 * typically from probe_one or from the online routine. 8143 **/ 8144int 8145lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8146{ 8147 int rc; 8148 struct lpfc_mqe *mqe = &mboxq->u.mqe; 8149 struct lpfc_pc_sli4_params *sli4_params; 8150 int length; 8151 struct lpfc_sli4_parameters *mbx_sli4_parameters; 8152 8153 /* 8154 * By default, the driver assumes the SLI4 port requires RPI 8155 * header postings. The SLI4_PARAM response will correct this 8156 * assumption. 8157 */ 8158 phba->sli4_hba.rpi_hdrs_in_use = 1; 8159 8160 /* Read the port's SLI4 Config Parameters */ 8161 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 8162 sizeof(struct lpfc_sli4_cfg_mhdr)); 8163 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8164 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 8165 length, LPFC_SLI4_MBX_EMBED); 8166 if (!phba->sli4_hba.intr_enable) 8167 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8168 else 8169 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, 8170 lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG)); 8171 if (unlikely(rc)) 8172 return rc; 8173 sli4_params = &phba->sli4_hba.pc_sli4_params; 8174 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 8175 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 8176 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 8177 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 8178 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 8179 mbx_sli4_parameters); 8180 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 8181 mbx_sli4_parameters); 8182 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 8183 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 8184 else 8185 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 8186 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 8187 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 8188 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 8189 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 8190 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 8191 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 8192 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 8193 mbx_sli4_parameters); 8194 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 8195 mbx_sli4_parameters); 8196 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 8197 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 8198 8199 /* Make sure that sge_supp_len can be handled by the driver */ 8200 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8201 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8202 8203 return 0; 8204} 8205 8206/** 8207 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 8208 * @pdev: pointer to PCI device 8209 * @pid: pointer to PCI device identifier 8210 * 8211 * This routine is to be called to attach a device with SLI-3 interface spec 8212 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8213 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8214 * information of the device and driver to see if the driver state that it can 8215 * support this kind of device. If the match is successful, the driver core 8216 * invokes this routine. If this routine determines it can claim the HBA, it 8217 * does all the initialization that it needs to do to handle the HBA properly. 8218 * 8219 * Return code 8220 * 0 - driver can claim the device 8221 * negative value - driver can not claim the device 8222 **/ 8223static int __devinit 8224lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 8225{ 8226 struct lpfc_hba *phba; 8227 struct lpfc_vport *vport = NULL; 8228 struct Scsi_Host *shost = NULL; 8229 int error; 8230 uint32_t cfg_mode, intr_mode; 8231 8232 /* Allocate memory for HBA structure */ 8233 phba = lpfc_hba_alloc(pdev); 8234 if (!phba) 8235 return -ENOMEM; 8236 8237 /* Perform generic PCI device enabling operation */ 8238 error = lpfc_enable_pci_dev(phba); 8239 if (error) { 8240 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8241 "1401 Failed to enable pci device.\n"); 8242 goto out_free_phba; 8243 } 8244 8245 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 8246 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 8247 if (error) 8248 goto out_disable_pci_dev; 8249 8250 /* Set up SLI-3 specific device PCI memory space */ 8251 error = lpfc_sli_pci_mem_setup(phba); 8252 if (error) { 8253 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8254 "1402 Failed to set up pci memory space.\n"); 8255 goto out_disable_pci_dev; 8256 } 8257 8258 /* Set up phase-1 common device driver resources */ 8259 error = lpfc_setup_driver_resource_phase1(phba); 8260 if (error) { 8261 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8262 "1403 Failed to set up driver resource.\n"); 8263 goto out_unset_pci_mem_s3; 8264 } 8265 8266 /* Set up SLI-3 specific device driver resources */ 8267 error = lpfc_sli_driver_resource_setup(phba); 8268 if (error) { 8269 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8270 "1404 Failed to set up driver resource.\n"); 8271 goto out_unset_pci_mem_s3; 8272 } 8273 8274 /* Initialize and populate the iocb list per host */ 8275 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 8276 if (error) { 8277 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8278 "1405 Failed to initialize iocb list.\n"); 8279 goto out_unset_driver_resource_s3; 8280 } 8281 8282 /* Set up common device driver resources */ 8283 error = lpfc_setup_driver_resource_phase2(phba); 8284 if (error) { 8285 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8286 "1406 Failed to set up driver resource.\n"); 8287 goto out_free_iocb_list; 8288 } 8289 8290 /* Create SCSI host to the physical port */ 8291 error = lpfc_create_shost(phba); 8292 if (error) { 8293 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8294 "1407 Failed to create scsi host.\n"); 8295 goto out_unset_driver_resource; 8296 } 8297 8298 /* Configure sysfs attributes */ 8299 vport = phba->pport; 8300 error = lpfc_alloc_sysfs_attr(vport); 8301 if (error) { 8302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8303 "1476 Failed to allocate sysfs attr\n"); 8304 goto out_destroy_shost; 8305 } 8306 8307 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8308 /* Now, trying to enable interrupt and bring up the device */ 8309 cfg_mode = phba->cfg_use_msi; 8310 while (true) { 8311 /* Put device to a known state before enabling interrupt */ 8312 lpfc_stop_port(phba); 8313 /* Configure and enable interrupt */ 8314 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 8315 if (intr_mode == LPFC_INTR_ERROR) { 8316 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8317 "0431 Failed to enable interrupt.\n"); 8318 error = -ENODEV; 8319 goto out_free_sysfs_attr; 8320 } 8321 /* SLI-3 HBA setup */ 8322 if (lpfc_sli_hba_setup(phba)) { 8323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8324 "1477 Failed to set up hba\n"); 8325 error = -ENODEV; 8326 goto out_remove_device; 8327 } 8328 8329 /* Wait 50ms for the interrupts of previous mailbox commands */ 8330 msleep(50); 8331 /* Check active interrupts on message signaled interrupts */ 8332 if (intr_mode == 0 || 8333 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 8334 /* Log the current active interrupt mode */ 8335 phba->intr_mode = intr_mode; 8336 lpfc_log_intr_mode(phba, intr_mode); 8337 break; 8338 } else { 8339 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8340 "0447 Configure interrupt mode (%d) " 8341 "failed active interrupt test.\n", 8342 intr_mode); 8343 /* Disable the current interrupt mode */ 8344 lpfc_sli_disable_intr(phba); 8345 /* Try next level of interrupt mode */ 8346 cfg_mode = --intr_mode; 8347 } 8348 } 8349 8350 /* Perform post initialization setup */ 8351 lpfc_post_init_setup(phba); 8352 8353 /* Check if there are static vports to be created. */ 8354 lpfc_create_static_vport(phba); 8355 8356 return 0; 8357 8358out_remove_device: 8359 lpfc_unset_hba(phba); 8360out_free_sysfs_attr: 8361 lpfc_free_sysfs_attr(vport); 8362out_destroy_shost: 8363 lpfc_destroy_shost(phba); 8364out_unset_driver_resource: 8365 lpfc_unset_driver_resource_phase2(phba); 8366out_free_iocb_list: 8367 lpfc_free_iocb_list(phba); 8368out_unset_driver_resource_s3: 8369 lpfc_sli_driver_resource_unset(phba); 8370out_unset_pci_mem_s3: 8371 lpfc_sli_pci_mem_unset(phba); 8372out_disable_pci_dev: 8373 lpfc_disable_pci_dev(phba); 8374 if (shost) 8375 scsi_host_put(shost); 8376out_free_phba: 8377 lpfc_hba_free(phba); 8378 return error; 8379} 8380 8381/** 8382 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 8383 * @pdev: pointer to PCI device 8384 * 8385 * This routine is to be called to disattach a device with SLI-3 interface 8386 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8387 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8388 * device to be removed from the PCI subsystem properly. 8389 **/ 8390static void __devexit 8391lpfc_pci_remove_one_s3(struct pci_dev *pdev) 8392{ 8393 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8394 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8395 struct lpfc_vport **vports; 8396 struct lpfc_hba *phba = vport->phba; 8397 int i; 8398 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 8399 8400 spin_lock_irq(&phba->hbalock); 8401 vport->load_flag |= FC_UNLOADING; 8402 spin_unlock_irq(&phba->hbalock); 8403 8404 lpfc_free_sysfs_attr(vport); 8405 8406 /* Release all the vports against this physical port */ 8407 vports = lpfc_create_vport_work_array(phba); 8408 if (vports != NULL) 8409 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 8410 fc_vport_terminate(vports[i]->fc_vport); 8411 lpfc_destroy_vport_work_array(phba, vports); 8412 8413 /* Remove FC host and then SCSI host with the physical port */ 8414 fc_remove_host(shost); 8415 scsi_remove_host(shost); 8416 lpfc_cleanup(vport); 8417 8418 /* 8419 * Bring down the SLI Layer. This step disable all interrupts, 8420 * clears the rings, discards all mailbox commands, and resets 8421 * the HBA. 8422 */ 8423 8424 /* HBA interrupt will be disabled after this call */ 8425 lpfc_sli_hba_down(phba); 8426 /* Stop kthread signal shall trigger work_done one more time */ 8427 kthread_stop(phba->worker_thread); 8428 /* Final cleanup of txcmplq and reset the HBA */ 8429 lpfc_sli_brdrestart(phba); 8430 8431 lpfc_stop_hba_timers(phba); 8432 spin_lock_irq(&phba->hbalock); 8433 list_del_init(&vport->listentry); 8434 spin_unlock_irq(&phba->hbalock); 8435 8436 lpfc_debugfs_terminate(vport); 8437 8438 /* Disable SR-IOV if enabled */ 8439 if (phba->cfg_sriov_nr_virtfn) 8440 pci_disable_sriov(pdev); 8441 8442 /* Disable interrupt */ 8443 lpfc_sli_disable_intr(phba); 8444 8445 pci_set_drvdata(pdev, NULL); 8446 scsi_host_put(shost); 8447 8448 /* 8449 * Call scsi_free before mem_free since scsi bufs are released to their 8450 * corresponding pools here. 8451 */ 8452 lpfc_scsi_free(phba); 8453 lpfc_mem_free_all(phba); 8454 8455 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 8456 phba->hbqslimp.virt, phba->hbqslimp.phys); 8457 8458 /* Free resources associated with SLI2 interface */ 8459 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 8460 phba->slim2p.virt, phba->slim2p.phys); 8461 8462 /* unmap adapter SLIM and Control Registers */ 8463 iounmap(phba->ctrl_regs_memmap_p); 8464 iounmap(phba->slim_memmap_p); 8465 8466 lpfc_hba_free(phba); 8467 8468 pci_release_selected_regions(pdev, bars); 8469 pci_disable_device(pdev); 8470} 8471 8472/** 8473 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 8474 * @pdev: pointer to PCI device 8475 * @msg: power management message 8476 * 8477 * This routine is to be called from the kernel's PCI subsystem to support 8478 * system Power Management (PM) to device with SLI-3 interface spec. When 8479 * PM invokes this method, it quiesces the device by stopping the driver's 8480 * worker thread for the device, turning off device's interrupt and DMA, 8481 * and bring the device offline. Note that as the driver implements the 8482 * minimum PM requirements to a power-aware driver's PM support for the 8483 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8484 * to the suspend() method call will be treated as SUSPEND and the driver will 8485 * fully reinitialize its device during resume() method call, the driver will 8486 * set device to PCI_D3hot state in PCI config space instead of setting it 8487 * according to the @msg provided by the PM. 8488 * 8489 * Return code 8490 * 0 - driver suspended the device 8491 * Error otherwise 8492 **/ 8493static int 8494lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 8495{ 8496 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8497 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8498 8499 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8500 "0473 PCI device Power Management suspend.\n"); 8501 8502 /* Bring down the device */ 8503 lpfc_offline_prep(phba); 8504 lpfc_offline(phba); 8505 kthread_stop(phba->worker_thread); 8506 8507 /* Disable interrupt from device */ 8508 lpfc_sli_disable_intr(phba); 8509 8510 /* Save device state to PCI config space */ 8511 pci_save_state(pdev); 8512 pci_set_power_state(pdev, PCI_D3hot); 8513 8514 return 0; 8515} 8516 8517/** 8518 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 8519 * @pdev: pointer to PCI device 8520 * 8521 * This routine is to be called from the kernel's PCI subsystem to support 8522 * system Power Management (PM) to device with SLI-3 interface spec. When PM 8523 * invokes this method, it restores the device's PCI config space state and 8524 * fully reinitializes the device and brings it online. Note that as the 8525 * driver implements the minimum PM requirements to a power-aware driver's 8526 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 8527 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 8528 * driver will fully reinitialize its device during resume() method call, 8529 * the device will be set to PCI_D0 directly in PCI config space before 8530 * restoring the state. 8531 * 8532 * Return code 8533 * 0 - driver suspended the device 8534 * Error otherwise 8535 **/ 8536static int 8537lpfc_pci_resume_one_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 uint32_t intr_mode; 8542 int error; 8543 8544 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8545 "0452 PCI device Power Management resume.\n"); 8546 8547 /* Restore device state from PCI config space */ 8548 pci_set_power_state(pdev, PCI_D0); 8549 pci_restore_state(pdev); 8550 8551 /* 8552 * As the new kernel behavior of pci_restore_state() API call clears 8553 * device saved_state flag, need to save the restored state again. 8554 */ 8555 pci_save_state(pdev); 8556 8557 if (pdev->is_busmaster) 8558 pci_set_master(pdev); 8559 8560 /* Startup the kernel thread for this host adapter. */ 8561 phba->worker_thread = kthread_run(lpfc_do_work, phba, 8562 "lpfc_worker_%d", phba->brd_no); 8563 if (IS_ERR(phba->worker_thread)) { 8564 error = PTR_ERR(phba->worker_thread); 8565 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8566 "0434 PM resume failed to start worker " 8567 "thread: error=x%x.\n", error); 8568 return error; 8569 } 8570 8571 /* Configure and enable interrupt */ 8572 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8573 if (intr_mode == LPFC_INTR_ERROR) { 8574 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8575 "0430 PM resume Failed to enable interrupt\n"); 8576 return -EIO; 8577 } else 8578 phba->intr_mode = intr_mode; 8579 8580 /* Restart HBA and bring it online */ 8581 lpfc_sli_brdrestart(phba); 8582 lpfc_online(phba); 8583 8584 /* Log the current active interrupt mode */ 8585 lpfc_log_intr_mode(phba, phba->intr_mode); 8586 8587 return 0; 8588} 8589 8590/** 8591 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 8592 * @phba: pointer to lpfc hba data structure. 8593 * 8594 * This routine is called to prepare the SLI3 device for PCI slot recover. It 8595 * aborts all the outstanding SCSI I/Os to the pci device. 8596 **/ 8597static void 8598lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 8599{ 8600 struct lpfc_sli *psli = &phba->sli; 8601 struct lpfc_sli_ring *pring; 8602 8603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8604 "2723 PCI channel I/O abort preparing for recovery\n"); 8605 8606 /* 8607 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 8608 * and let the SCSI mid-layer to retry them to recover. 8609 */ 8610 pring = &psli->ring[psli->fcp_ring]; 8611 lpfc_sli_abort_iocb_ring(phba, pring); 8612} 8613 8614/** 8615 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 8616 * @phba: pointer to lpfc hba data structure. 8617 * 8618 * This routine is called to prepare the SLI3 device for PCI slot reset. It 8619 * disables the device interrupt and pci device, and aborts the internal FCP 8620 * pending I/Os. 8621 **/ 8622static void 8623lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 8624{ 8625 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8626 "2710 PCI channel disable preparing for reset\n"); 8627 8628 /* Block any management I/Os to the device */ 8629 lpfc_block_mgmt_io(phba); 8630 8631 /* Block all SCSI devices' I/Os on the host */ 8632 lpfc_scsi_dev_block(phba); 8633 8634 /* stop all timers */ 8635 lpfc_stop_hba_timers(phba); 8636 8637 /* Disable interrupt and pci device */ 8638 lpfc_sli_disable_intr(phba); 8639 pci_disable_device(phba->pcidev); 8640 8641 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 8642 lpfc_sli_flush_fcp_rings(phba); 8643} 8644 8645/** 8646 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 8647 * @phba: pointer to lpfc hba data structure. 8648 * 8649 * This routine is called to prepare the SLI3 device for PCI slot permanently 8650 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 8651 * pending I/Os. 8652 **/ 8653static void 8654lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 8655{ 8656 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8657 "2711 PCI channel permanent disable for failure\n"); 8658 /* Block all SCSI devices' I/Os on the host */ 8659 lpfc_scsi_dev_block(phba); 8660 8661 /* stop all timers */ 8662 lpfc_stop_hba_timers(phba); 8663 8664 /* Clean up all driver's outstanding SCSI I/Os */ 8665 lpfc_sli_flush_fcp_rings(phba); 8666} 8667 8668/** 8669 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 8670 * @pdev: pointer to PCI device. 8671 * @state: the current PCI connection state. 8672 * 8673 * This routine is called from the PCI subsystem for I/O error handling to 8674 * device with SLI-3 interface spec. This function is called by the PCI 8675 * subsystem after a PCI bus error affecting this device has been detected. 8676 * When this function is invoked, it will need to stop all the I/Os and 8677 * interrupt(s) to the device. Once that is done, it will return 8678 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 8679 * as desired. 8680 * 8681 * Return codes 8682 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 8683 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8684 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8685 **/ 8686static pci_ers_result_t 8687lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 8688{ 8689 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8690 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8691 8692 switch (state) { 8693 case pci_channel_io_normal: 8694 /* Non-fatal error, prepare for recovery */ 8695 lpfc_sli_prep_dev_for_recover(phba); 8696 return PCI_ERS_RESULT_CAN_RECOVER; 8697 case pci_channel_io_frozen: 8698 /* Fatal error, prepare for slot reset */ 8699 lpfc_sli_prep_dev_for_reset(phba); 8700 return PCI_ERS_RESULT_NEED_RESET; 8701 case pci_channel_io_perm_failure: 8702 /* Permanent failure, prepare for device down */ 8703 lpfc_sli_prep_dev_for_perm_failure(phba); 8704 return PCI_ERS_RESULT_DISCONNECT; 8705 default: 8706 /* Unknown state, prepare and request slot reset */ 8707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8708 "0472 Unknown PCI error state: x%x\n", state); 8709 lpfc_sli_prep_dev_for_reset(phba); 8710 return PCI_ERS_RESULT_NEED_RESET; 8711 } 8712} 8713 8714/** 8715 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 8716 * @pdev: pointer to PCI device. 8717 * 8718 * This routine is called from the PCI subsystem for error handling to 8719 * device with SLI-3 interface spec. This is called after PCI bus has been 8720 * reset to restart the PCI card from scratch, as if from a cold-boot. 8721 * During the PCI subsystem error recovery, after driver returns 8722 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 8723 * recovery and then call this routine before calling the .resume method 8724 * to recover the device. This function will initialize the HBA device, 8725 * enable the interrupt, but it will just put the HBA to offline state 8726 * without passing any I/O traffic. 8727 * 8728 * Return codes 8729 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8730 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8731 */ 8732static pci_ers_result_t 8733lpfc_io_slot_reset_s3(struct pci_dev *pdev) 8734{ 8735 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8736 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8737 struct lpfc_sli *psli = &phba->sli; 8738 uint32_t intr_mode; 8739 8740 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 8741 if (pci_enable_device_mem(pdev)) { 8742 printk(KERN_ERR "lpfc: Cannot re-enable " 8743 "PCI device after reset.\n"); 8744 return PCI_ERS_RESULT_DISCONNECT; 8745 } 8746 8747 pci_restore_state(pdev); 8748 8749 /* 8750 * As the new kernel behavior of pci_restore_state() API call clears 8751 * device saved_state flag, need to save the restored state again. 8752 */ 8753 pci_save_state(pdev); 8754 8755 if (pdev->is_busmaster) 8756 pci_set_master(pdev); 8757 8758 spin_lock_irq(&phba->hbalock); 8759 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 8760 spin_unlock_irq(&phba->hbalock); 8761 8762 /* Configure and enable interrupt */ 8763 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8764 if (intr_mode == LPFC_INTR_ERROR) { 8765 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8766 "0427 Cannot re-enable interrupt after " 8767 "slot reset.\n"); 8768 return PCI_ERS_RESULT_DISCONNECT; 8769 } else 8770 phba->intr_mode = intr_mode; 8771 8772 /* Take device offline, it will perform cleanup */ 8773 lpfc_offline_prep(phba); 8774 lpfc_offline(phba); 8775 lpfc_sli_brdrestart(phba); 8776 8777 /* Log the current active interrupt mode */ 8778 lpfc_log_intr_mode(phba, phba->intr_mode); 8779 8780 return PCI_ERS_RESULT_RECOVERED; 8781} 8782 8783/** 8784 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 8785 * @pdev: pointer to PCI device 8786 * 8787 * This routine is called from the PCI subsystem for error handling to device 8788 * with SLI-3 interface spec. It is called when kernel error recovery tells 8789 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8790 * error recovery. After this call, traffic can start to flow from this device 8791 * again. 8792 */ 8793static void 8794lpfc_io_resume_s3(struct pci_dev *pdev) 8795{ 8796 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8797 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8798 8799 /* Bring device online, it will be no-op for non-fatal error resume */ 8800 lpfc_online(phba); 8801 8802 /* Clean up Advanced Error Reporting (AER) if needed */ 8803 if (phba->hba_flag & HBA_AER_ENABLED) 8804 pci_cleanup_aer_uncorrect_error_status(pdev); 8805} 8806 8807/** 8808 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 8809 * @phba: pointer to lpfc hba data structure. 8810 * 8811 * returns the number of ELS/CT IOCBs to reserve 8812 **/ 8813int 8814lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 8815{ 8816 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 8817 8818 if (phba->sli_rev == LPFC_SLI_REV4) { 8819 if (max_xri <= 100) 8820 return 10; 8821 else if (max_xri <= 256) 8822 return 25; 8823 else if (max_xri <= 512) 8824 return 50; 8825 else if (max_xri <= 1024) 8826 return 100; 8827 else 8828 return 150; 8829 } else 8830 return 0; 8831} 8832 8833/** 8834 * lpfc_write_firmware - attempt to write a firmware image to the port 8835 * @phba: pointer to lpfc hba data structure. 8836 * @fw: pointer to firmware image returned from request_firmware. 8837 * 8838 * returns the number of bytes written if write is successful. 8839 * returns a negative error value if there were errors. 8840 * returns 0 if firmware matches currently active firmware on port. 8841 **/ 8842int 8843lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw) 8844{ 8845 char fwrev[32]; 8846 struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data; 8847 struct list_head dma_buffer_list; 8848 int i, rc = 0; 8849 struct lpfc_dmabuf *dmabuf, *next; 8850 uint32_t offset = 0, temp_offset = 0; 8851 8852 INIT_LIST_HEAD(&dma_buffer_list); 8853 if ((image->magic_number != LPFC_GROUP_OJECT_MAGIC_NUM) || 8854 (bf_get(lpfc_grp_hdr_file_type, image) != LPFC_FILE_TYPE_GROUP) || 8855 (bf_get(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) || 8856 (image->size != fw->size)) { 8857 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8858 "3022 Invalid FW image found. " 8859 "Magic:%d Type:%x ID:%x\n", 8860 image->magic_number, 8861 bf_get(lpfc_grp_hdr_file_type, image), 8862 bf_get(lpfc_grp_hdr_id, image)); 8863 return -EINVAL; 8864 } 8865 lpfc_decode_firmware_rev(phba, fwrev, 1); 8866 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 8867 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8868 "3023 Updating Firmware. Current Version:%s " 8869 "New Version:%s\n", 8870 fwrev, image->revision); 8871 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 8872 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 8873 GFP_KERNEL); 8874 if (!dmabuf) { 8875 rc = -ENOMEM; 8876 goto out; 8877 } 8878 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 8879 SLI4_PAGE_SIZE, 8880 &dmabuf->phys, 8881 GFP_KERNEL); 8882 if (!dmabuf->virt) { 8883 kfree(dmabuf); 8884 rc = -ENOMEM; 8885 goto out; 8886 } 8887 list_add_tail(&dmabuf->list, &dma_buffer_list); 8888 } 8889 while (offset < fw->size) { 8890 temp_offset = offset; 8891 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 8892 if (offset + SLI4_PAGE_SIZE > fw->size) { 8893 temp_offset += fw->size - offset; 8894 memcpy(dmabuf->virt, 8895 fw->data + temp_offset, 8896 fw->size - offset); 8897 break; 8898 } 8899 memcpy(dmabuf->virt, fw->data + temp_offset, 8900 SLI4_PAGE_SIZE); 8901 temp_offset += SLI4_PAGE_SIZE; 8902 } 8903 rc = lpfc_wr_object(phba, &dma_buffer_list, 8904 (fw->size - offset), &offset); 8905 if (rc) { 8906 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8907 "3024 Firmware update failed. " 8908 "%d\n", rc); 8909 goto out; 8910 } 8911 } 8912 rc = offset; 8913 } 8914out: 8915 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 8916 list_del(&dmabuf->list); 8917 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 8918 dmabuf->virt, dmabuf->phys); 8919 kfree(dmabuf); 8920 } 8921 return rc; 8922} 8923 8924/** 8925 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 8926 * @pdev: pointer to PCI device 8927 * @pid: pointer to PCI device identifier 8928 * 8929 * This routine is called from the kernel's PCI subsystem to device with 8930 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8931 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8932 * information of the device and driver to see if the driver state that it 8933 * can support this kind of device. If the match is successful, the driver 8934 * core invokes this routine. If this routine determines it can claim the HBA, 8935 * it does all the initialization that it needs to do to handle the HBA 8936 * properly. 8937 * 8938 * Return code 8939 * 0 - driver can claim the device 8940 * negative value - driver can not claim the device 8941 **/ 8942static int __devinit 8943lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 8944{ 8945 struct lpfc_hba *phba; 8946 struct lpfc_vport *vport = NULL; 8947 struct Scsi_Host *shost = NULL; 8948 int error; 8949 uint32_t cfg_mode, intr_mode; 8950 int mcnt; 8951 int adjusted_fcp_eq_count; 8952 int fcp_qidx; 8953 const struct firmware *fw; 8954 uint8_t file_name[16]; 8955 8956 /* Allocate memory for HBA structure */ 8957 phba = lpfc_hba_alloc(pdev); 8958 if (!phba) 8959 return -ENOMEM; 8960 8961 /* Perform generic PCI device enabling operation */ 8962 error = lpfc_enable_pci_dev(phba); 8963 if (error) { 8964 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8965 "1409 Failed to enable pci device.\n"); 8966 goto out_free_phba; 8967 } 8968 8969 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 8970 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 8971 if (error) 8972 goto out_disable_pci_dev; 8973 8974 /* Set up SLI-4 specific device PCI memory space */ 8975 error = lpfc_sli4_pci_mem_setup(phba); 8976 if (error) { 8977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8978 "1410 Failed to set up pci memory space.\n"); 8979 goto out_disable_pci_dev; 8980 } 8981 8982 /* Set up phase-1 common device driver resources */ 8983 error = lpfc_setup_driver_resource_phase1(phba); 8984 if (error) { 8985 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8986 "1411 Failed to set up driver resource.\n"); 8987 goto out_unset_pci_mem_s4; 8988 } 8989 8990 /* Set up SLI-4 Specific device driver resources */ 8991 error = lpfc_sli4_driver_resource_setup(phba); 8992 if (error) { 8993 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8994 "1412 Failed to set up driver resource.\n"); 8995 goto out_unset_pci_mem_s4; 8996 } 8997 8998 /* Initialize and populate the iocb list per host */ 8999 9000 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9001 "2821 initialize iocb list %d.\n", 9002 phba->cfg_iocb_cnt*1024); 9003 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 9004 9005 if (error) { 9006 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9007 "1413 Failed to initialize iocb list.\n"); 9008 goto out_unset_driver_resource_s4; 9009 } 9010 9011 INIT_LIST_HEAD(&phba->active_rrq_list); 9012 9013 /* Set up common device driver resources */ 9014 error = lpfc_setup_driver_resource_phase2(phba); 9015 if (error) { 9016 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9017 "1414 Failed to set up driver resource.\n"); 9018 goto out_free_iocb_list; 9019 } 9020 9021 /* Create SCSI host to the physical port */ 9022 error = lpfc_create_shost(phba); 9023 if (error) { 9024 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9025 "1415 Failed to create scsi host.\n"); 9026 goto out_unset_driver_resource; 9027 } 9028 9029 /* Configure sysfs attributes */ 9030 vport = phba->pport; 9031 error = lpfc_alloc_sysfs_attr(vport); 9032 if (error) { 9033 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9034 "1416 Failed to allocate sysfs attr\n"); 9035 goto out_destroy_shost; 9036 } 9037 9038 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 9039 /* Now, trying to enable interrupt and bring up the device */ 9040 cfg_mode = phba->cfg_use_msi; 9041 while (true) { 9042 /* Put device to a known state before enabling interrupt */ 9043 lpfc_stop_port(phba); 9044 /* Configure and enable interrupt */ 9045 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 9046 if (intr_mode == LPFC_INTR_ERROR) { 9047 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9048 "0426 Failed to enable interrupt.\n"); 9049 error = -ENODEV; 9050 goto out_free_sysfs_attr; 9051 } 9052 /* Default to single EQ for non-MSI-X */ 9053 if (phba->intr_type != MSIX) 9054 adjusted_fcp_eq_count = 0; 9055 else if (phba->sli4_hba.msix_vec_nr < 9056 phba->cfg_fcp_eq_count + 1) 9057 adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1; 9058 else 9059 adjusted_fcp_eq_count = phba->cfg_fcp_eq_count; 9060 /* Free unused EQs */ 9061 for (fcp_qidx = adjusted_fcp_eq_count; 9062 fcp_qidx < phba->cfg_fcp_eq_count; 9063 fcp_qidx++) { 9064 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 9065 /* do not delete the first fcp_cq */ 9066 if (fcp_qidx) 9067 lpfc_sli4_queue_free( 9068 phba->sli4_hba.fcp_cq[fcp_qidx]); 9069 } 9070 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count; 9071 /* Set up SLI-4 HBA */ 9072 if (lpfc_sli4_hba_setup(phba)) { 9073 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9074 "1421 Failed to set up hba\n"); 9075 error = -ENODEV; 9076 goto out_disable_intr; 9077 } 9078 9079 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 9080 if (intr_mode != 0) 9081 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 9082 LPFC_ACT_INTR_CNT); 9083 9084 /* Check active interrupts received only for MSI/MSI-X */ 9085 if (intr_mode == 0 || 9086 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 9087 /* Log the current active interrupt mode */ 9088 phba->intr_mode = intr_mode; 9089 lpfc_log_intr_mode(phba, intr_mode); 9090 break; 9091 } 9092 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9093 "0451 Configure interrupt mode (%d) " 9094 "failed active interrupt test.\n", 9095 intr_mode); 9096 /* Unset the previous SLI-4 HBA setup. */ 9097 /* 9098 * TODO: Is this operation compatible with IF TYPE 2 9099 * devices? All port state is deleted and cleared. 9100 */ 9101 lpfc_sli4_unset_hba(phba); 9102 /* Try next level of interrupt mode */ 9103 cfg_mode = --intr_mode; 9104 } 9105 9106 /* Perform post initialization setup */ 9107 lpfc_post_init_setup(phba); 9108 9109 /* check for firmware upgrade or downgrade */ 9110 snprintf(file_name, 16, "%s.grp", phba->ModelName); 9111 error = request_firmware(&fw, file_name, &phba->pcidev->dev); 9112 if (!error) { 9113 lpfc_write_firmware(phba, fw); 9114 release_firmware(fw); 9115 } 9116 9117 /* Check if there are static vports to be created. */ 9118 lpfc_create_static_vport(phba); 9119 9120 return 0; 9121 9122out_disable_intr: 9123 lpfc_sli4_disable_intr(phba); 9124out_free_sysfs_attr: 9125 lpfc_free_sysfs_attr(vport); 9126out_destroy_shost: 9127 lpfc_destroy_shost(phba); 9128out_unset_driver_resource: 9129 lpfc_unset_driver_resource_phase2(phba); 9130out_free_iocb_list: 9131 lpfc_free_iocb_list(phba); 9132out_unset_driver_resource_s4: 9133 lpfc_sli4_driver_resource_unset(phba); 9134out_unset_pci_mem_s4: 9135 lpfc_sli4_pci_mem_unset(phba); 9136out_disable_pci_dev: 9137 lpfc_disable_pci_dev(phba); 9138 if (shost) 9139 scsi_host_put(shost); 9140out_free_phba: 9141 lpfc_hba_free(phba); 9142 return error; 9143} 9144 9145/** 9146 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 9147 * @pdev: pointer to PCI device 9148 * 9149 * This routine is called from the kernel's PCI subsystem to device with 9150 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9151 * removed from PCI bus, it performs all the necessary cleanup for the HBA 9152 * device to be removed from the PCI subsystem properly. 9153 **/ 9154static void __devexit 9155lpfc_pci_remove_one_s4(struct pci_dev *pdev) 9156{ 9157 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9158 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 9159 struct lpfc_vport **vports; 9160 struct lpfc_hba *phba = vport->phba; 9161 int i; 9162 9163 /* Mark the device unloading flag */ 9164 spin_lock_irq(&phba->hbalock); 9165 vport->load_flag |= FC_UNLOADING; 9166 spin_unlock_irq(&phba->hbalock); 9167 9168 /* Free the HBA sysfs attributes */ 9169 lpfc_free_sysfs_attr(vport); 9170 9171 /* Release all the vports against this physical port */ 9172 vports = lpfc_create_vport_work_array(phba); 9173 if (vports != NULL) 9174 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 9175 fc_vport_terminate(vports[i]->fc_vport); 9176 lpfc_destroy_vport_work_array(phba, vports); 9177 9178 /* Remove FC host and then SCSI host with the physical port */ 9179 fc_remove_host(shost); 9180 scsi_remove_host(shost); 9181 9182 /* Perform cleanup on the physical port */ 9183 lpfc_cleanup(vport); 9184 9185 /* 9186 * Bring down the SLI Layer. This step disables all interrupts, 9187 * clears the rings, discards all mailbox commands, and resets 9188 * the HBA FCoE function. 9189 */ 9190 lpfc_debugfs_terminate(vport); 9191 lpfc_sli4_hba_unset(phba); 9192 9193 spin_lock_irq(&phba->hbalock); 9194 list_del_init(&vport->listentry); 9195 spin_unlock_irq(&phba->hbalock); 9196 9197 /* Perform scsi free before driver resource_unset since scsi 9198 * buffers are released to their corresponding pools here. 9199 */ 9200 lpfc_scsi_free(phba); 9201 lpfc_sli4_driver_resource_unset(phba); 9202 9203 /* Unmap adapter Control and Doorbell registers */ 9204 lpfc_sli4_pci_mem_unset(phba); 9205 9206 /* Release PCI resources and disable device's PCI function */ 9207 scsi_host_put(shost); 9208 lpfc_disable_pci_dev(phba); 9209 9210 /* Finally, free the driver's device data structure */ 9211 lpfc_hba_free(phba); 9212 9213 return; 9214} 9215 9216/** 9217 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 9218 * @pdev: pointer to PCI device 9219 * @msg: power management message 9220 * 9221 * This routine is called from the kernel's PCI subsystem to support system 9222 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 9223 * this method, it quiesces the device by stopping the driver's worker 9224 * thread for the device, turning off device's interrupt and DMA, and bring 9225 * the device offline. Note that as the driver implements the minimum PM 9226 * requirements to a power-aware driver's PM support for suspend/resume -- all 9227 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 9228 * method call will be treated as SUSPEND and the driver will fully 9229 * reinitialize its device during resume() method call, the driver will set 9230 * device to PCI_D3hot state in PCI config space instead of setting it 9231 * according to the @msg provided by the PM. 9232 * 9233 * Return code 9234 * 0 - driver suspended the device 9235 * Error otherwise 9236 **/ 9237static int 9238lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 9239{ 9240 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9241 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9242 9243 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9244 "2843 PCI device Power Management suspend.\n"); 9245 9246 /* Bring down the device */ 9247 lpfc_offline_prep(phba); 9248 lpfc_offline(phba); 9249 kthread_stop(phba->worker_thread); 9250 9251 /* Disable interrupt from device */ 9252 lpfc_sli4_disable_intr(phba); 9253 9254 /* Save device state to PCI config space */ 9255 pci_save_state(pdev); 9256 pci_set_power_state(pdev, PCI_D3hot); 9257 9258 return 0; 9259} 9260 9261/** 9262 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 9263 * @pdev: pointer to PCI device 9264 * 9265 * This routine is called from the kernel's PCI subsystem to support system 9266 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 9267 * this method, it restores the device's PCI config space state and fully 9268 * reinitializes the device and brings it online. Note that as the driver 9269 * implements the minimum PM requirements to a power-aware driver's PM for 9270 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 9271 * to the suspend() method call will be treated as SUSPEND and the driver 9272 * will fully reinitialize its device during resume() method call, the device 9273 * will be set to PCI_D0 directly in PCI config space before restoring the 9274 * state. 9275 * 9276 * Return code 9277 * 0 - driver suspended the device 9278 * Error otherwise 9279 **/ 9280static int 9281lpfc_pci_resume_one_s4(struct pci_dev *pdev) 9282{ 9283 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9284 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9285 uint32_t intr_mode; 9286 int error; 9287 9288 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9289 "0292 PCI device Power Management resume.\n"); 9290 9291 /* Restore device state from PCI config space */ 9292 pci_set_power_state(pdev, PCI_D0); 9293 pci_restore_state(pdev); 9294 9295 /* 9296 * As the new kernel behavior of pci_restore_state() API call clears 9297 * device saved_state flag, need to save the restored state again. 9298 */ 9299 pci_save_state(pdev); 9300 9301 if (pdev->is_busmaster) 9302 pci_set_master(pdev); 9303 9304 /* Startup the kernel thread for this host adapter. */ 9305 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9306 "lpfc_worker_%d", phba->brd_no); 9307 if (IS_ERR(phba->worker_thread)) { 9308 error = PTR_ERR(phba->worker_thread); 9309 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9310 "0293 PM resume failed to start worker " 9311 "thread: error=x%x.\n", error); 9312 return error; 9313 } 9314 9315 /* Configure and enable interrupt */ 9316 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9317 if (intr_mode == LPFC_INTR_ERROR) { 9318 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9319 "0294 PM resume Failed to enable interrupt\n"); 9320 return -EIO; 9321 } else 9322 phba->intr_mode = intr_mode; 9323 9324 /* Restart HBA and bring it online */ 9325 lpfc_sli_brdrestart(phba); 9326 lpfc_online(phba); 9327 9328 /* Log the current active interrupt mode */ 9329 lpfc_log_intr_mode(phba, phba->intr_mode); 9330 9331 return 0; 9332} 9333 9334/** 9335 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 9336 * @phba: pointer to lpfc hba data structure. 9337 * 9338 * This routine is called to prepare the SLI4 device for PCI slot recover. It 9339 * aborts all the outstanding SCSI I/Os to the pci device. 9340 **/ 9341static void 9342lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 9343{ 9344 struct lpfc_sli *psli = &phba->sli; 9345 struct lpfc_sli_ring *pring; 9346 9347 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9348 "2828 PCI channel I/O abort preparing for recovery\n"); 9349 /* 9350 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9351 * and let the SCSI mid-layer to retry them to recover. 9352 */ 9353 pring = &psli->ring[psli->fcp_ring]; 9354 lpfc_sli_abort_iocb_ring(phba, pring); 9355} 9356 9357/** 9358 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 9359 * @phba: pointer to lpfc hba data structure. 9360 * 9361 * This routine is called to prepare the SLI4 device for PCI slot reset. It 9362 * disables the device interrupt and pci device, and aborts the internal FCP 9363 * pending I/Os. 9364 **/ 9365static void 9366lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 9367{ 9368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9369 "2826 PCI channel disable preparing for reset\n"); 9370 9371 /* Block any management I/Os to the device */ 9372 lpfc_block_mgmt_io(phba); 9373 9374 /* Block all SCSI devices' I/Os on the host */ 9375 lpfc_scsi_dev_block(phba); 9376 9377 /* stop all timers */ 9378 lpfc_stop_hba_timers(phba); 9379 9380 /* Disable interrupt and pci device */ 9381 lpfc_sli4_disable_intr(phba); 9382 pci_disable_device(phba->pcidev); 9383 9384 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9385 lpfc_sli_flush_fcp_rings(phba); 9386} 9387 9388/** 9389 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 9390 * @phba: pointer to lpfc hba data structure. 9391 * 9392 * This routine is called to prepare the SLI4 device for PCI slot permanently 9393 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9394 * pending I/Os. 9395 **/ 9396static void 9397lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9398{ 9399 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9400 "2827 PCI channel permanent disable for failure\n"); 9401 9402 /* Block all SCSI devices' I/Os on the host */ 9403 lpfc_scsi_dev_block(phba); 9404 9405 /* stop all timers */ 9406 lpfc_stop_hba_timers(phba); 9407 9408 /* Clean up all driver's outstanding SCSI I/Os */ 9409 lpfc_sli_flush_fcp_rings(phba); 9410} 9411 9412/** 9413 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 9414 * @pdev: pointer to PCI device. 9415 * @state: the current PCI connection state. 9416 * 9417 * This routine is called from the PCI subsystem for error handling to device 9418 * with SLI-4 interface spec. This function is called by the PCI subsystem 9419 * after a PCI bus error affecting this device has been detected. When this 9420 * function is invoked, it will need to stop all the I/Os and interrupt(s) 9421 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 9422 * for the PCI subsystem to perform proper recovery as desired. 9423 * 9424 * Return codes 9425 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9426 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9427 **/ 9428static pci_ers_result_t 9429lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 9430{ 9431 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9432 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9433 9434 switch (state) { 9435 case pci_channel_io_normal: 9436 /* Non-fatal error, prepare for recovery */ 9437 lpfc_sli4_prep_dev_for_recover(phba); 9438 return PCI_ERS_RESULT_CAN_RECOVER; 9439 case pci_channel_io_frozen: 9440 /* Fatal error, prepare for slot reset */ 9441 lpfc_sli4_prep_dev_for_reset(phba); 9442 return PCI_ERS_RESULT_NEED_RESET; 9443 case pci_channel_io_perm_failure: 9444 /* Permanent failure, prepare for device down */ 9445 lpfc_sli4_prep_dev_for_perm_failure(phba); 9446 return PCI_ERS_RESULT_DISCONNECT; 9447 default: 9448 /* Unknown state, prepare and request slot reset */ 9449 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9450 "2825 Unknown PCI error state: x%x\n", state); 9451 lpfc_sli4_prep_dev_for_reset(phba); 9452 return PCI_ERS_RESULT_NEED_RESET; 9453 } 9454} 9455 9456/** 9457 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 9458 * @pdev: pointer to PCI device. 9459 * 9460 * This routine is called from the PCI subsystem for error handling to device 9461 * with SLI-4 interface spec. It is called after PCI bus has been reset to 9462 * restart the PCI card from scratch, as if from a cold-boot. During the 9463 * PCI subsystem error recovery, after the driver returns 9464 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 9465 * recovery and then call this routine before calling the .resume method to 9466 * recover the device. This function will initialize the HBA device, enable 9467 * the interrupt, but it will just put the HBA to offline state without 9468 * passing any I/O traffic. 9469 * 9470 * Return codes 9471 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9472 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9473 */ 9474static pci_ers_result_t 9475lpfc_io_slot_reset_s4(struct pci_dev *pdev) 9476{ 9477 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9478 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9479 struct lpfc_sli *psli = &phba->sli; 9480 uint32_t intr_mode; 9481 9482 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9483 if (pci_enable_device_mem(pdev)) { 9484 printk(KERN_ERR "lpfc: Cannot re-enable " 9485 "PCI device after reset.\n"); 9486 return PCI_ERS_RESULT_DISCONNECT; 9487 } 9488 9489 pci_restore_state(pdev); 9490 if (pdev->is_busmaster) 9491 pci_set_master(pdev); 9492 9493 spin_lock_irq(&phba->hbalock); 9494 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 9495 spin_unlock_irq(&phba->hbalock); 9496 9497 /* Configure and enable interrupt */ 9498 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9499 if (intr_mode == LPFC_INTR_ERROR) { 9500 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9501 "2824 Cannot re-enable interrupt after " 9502 "slot reset.\n"); 9503 return PCI_ERS_RESULT_DISCONNECT; 9504 } else 9505 phba->intr_mode = intr_mode; 9506 9507 /* Log the current active interrupt mode */ 9508 lpfc_log_intr_mode(phba, phba->intr_mode); 9509 9510 return PCI_ERS_RESULT_RECOVERED; 9511} 9512 9513/** 9514 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 9515 * @pdev: pointer to PCI device 9516 * 9517 * This routine is called from the PCI subsystem for error handling to device 9518 * with SLI-4 interface spec. It is called when kernel error recovery tells 9519 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 9520 * error recovery. After this call, traffic can start to flow from this device 9521 * again. 9522 **/ 9523static void 9524lpfc_io_resume_s4(struct pci_dev *pdev) 9525{ 9526 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9527 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9528 9529 /* 9530 * In case of slot reset, as function reset is performed through 9531 * mailbox command which needs DMA to be enabled, this operation 9532 * has to be moved to the io resume phase. Taking device offline 9533 * will perform the necessary cleanup. 9534 */ 9535 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 9536 /* Perform device reset */ 9537 lpfc_offline_prep(phba); 9538 lpfc_offline(phba); 9539 lpfc_sli_brdrestart(phba); 9540 /* Bring the device back online */ 9541 lpfc_online(phba); 9542 } 9543 9544 /* Clean up Advanced Error Reporting (AER) if needed */ 9545 if (phba->hba_flag & HBA_AER_ENABLED) 9546 pci_cleanup_aer_uncorrect_error_status(pdev); 9547} 9548 9549/** 9550 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 9551 * @pdev: pointer to PCI device 9552 * @pid: pointer to PCI device identifier 9553 * 9554 * This routine is to be registered to the kernel's PCI subsystem. When an 9555 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 9556 * at PCI device-specific information of the device and driver to see if the 9557 * driver state that it can support this kind of device. If the match is 9558 * successful, the driver core invokes this routine. This routine dispatches 9559 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 9560 * do all the initialization that it needs to do to handle the HBA device 9561 * properly. 9562 * 9563 * Return code 9564 * 0 - driver can claim the device 9565 * negative value - driver can not claim the device 9566 **/ 9567static int __devinit 9568lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 9569{ 9570 int rc; 9571 struct lpfc_sli_intf intf; 9572 9573 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 9574 return -ENODEV; 9575 9576 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 9577 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 9578 rc = lpfc_pci_probe_one_s4(pdev, pid); 9579 else 9580 rc = lpfc_pci_probe_one_s3(pdev, pid); 9581 9582 return rc; 9583} 9584 9585/** 9586 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 9587 * @pdev: pointer to PCI device 9588 * 9589 * This routine is to be registered to the kernel's PCI subsystem. When an 9590 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 9591 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 9592 * remove routine, which will perform all the necessary cleanup for the 9593 * device to be removed from the PCI subsystem properly. 9594 **/ 9595static void __devexit 9596lpfc_pci_remove_one(struct pci_dev *pdev) 9597{ 9598 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9599 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9600 9601 switch (phba->pci_dev_grp) { 9602 case LPFC_PCI_DEV_LP: 9603 lpfc_pci_remove_one_s3(pdev); 9604 break; 9605 case LPFC_PCI_DEV_OC: 9606 lpfc_pci_remove_one_s4(pdev); 9607 break; 9608 default: 9609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9610 "1424 Invalid PCI device group: 0x%x\n", 9611 phba->pci_dev_grp); 9612 break; 9613 } 9614 return; 9615} 9616 9617/** 9618 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 9619 * @pdev: pointer to PCI device 9620 * @msg: power management message 9621 * 9622 * This routine is to be registered to the kernel's PCI subsystem to support 9623 * system Power Management (PM). When PM invokes this method, it dispatches 9624 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 9625 * suspend the device. 9626 * 9627 * Return code 9628 * 0 - driver suspended the device 9629 * Error otherwise 9630 **/ 9631static int 9632lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 9633{ 9634 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9635 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9636 int rc = -ENODEV; 9637 9638 switch (phba->pci_dev_grp) { 9639 case LPFC_PCI_DEV_LP: 9640 rc = lpfc_pci_suspend_one_s3(pdev, msg); 9641 break; 9642 case LPFC_PCI_DEV_OC: 9643 rc = lpfc_pci_suspend_one_s4(pdev, msg); 9644 break; 9645 default: 9646 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9647 "1425 Invalid PCI device group: 0x%x\n", 9648 phba->pci_dev_grp); 9649 break; 9650 } 9651 return rc; 9652} 9653 9654/** 9655 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 9656 * @pdev: pointer to PCI device 9657 * 9658 * This routine is to be registered to the kernel's PCI subsystem to support 9659 * system Power Management (PM). When PM invokes this method, it dispatches 9660 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 9661 * resume the device. 9662 * 9663 * Return code 9664 * 0 - driver suspended the device 9665 * Error otherwise 9666 **/ 9667static int 9668lpfc_pci_resume_one(struct pci_dev *pdev) 9669{ 9670 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9671 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9672 int rc = -ENODEV; 9673 9674 switch (phba->pci_dev_grp) { 9675 case LPFC_PCI_DEV_LP: 9676 rc = lpfc_pci_resume_one_s3(pdev); 9677 break; 9678 case LPFC_PCI_DEV_OC: 9679 rc = lpfc_pci_resume_one_s4(pdev); 9680 break; 9681 default: 9682 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9683 "1426 Invalid PCI device group: 0x%x\n", 9684 phba->pci_dev_grp); 9685 break; 9686 } 9687 return rc; 9688} 9689 9690/** 9691 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 9692 * @pdev: pointer to PCI device. 9693 * @state: the current PCI connection state. 9694 * 9695 * This routine is registered to the PCI subsystem for error handling. This 9696 * function is called by the PCI subsystem after a PCI bus error affecting 9697 * this device has been detected. When this routine is invoked, it dispatches 9698 * the action to the proper SLI-3 or SLI-4 device error detected handling 9699 * routine, which will perform the proper error detected operation. 9700 * 9701 * Return codes 9702 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9703 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9704 **/ 9705static pci_ers_result_t 9706lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 9707{ 9708 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9709 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9710 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 9711 9712 switch (phba->pci_dev_grp) { 9713 case LPFC_PCI_DEV_LP: 9714 rc = lpfc_io_error_detected_s3(pdev, state); 9715 break; 9716 case LPFC_PCI_DEV_OC: 9717 rc = lpfc_io_error_detected_s4(pdev, state); 9718 break; 9719 default: 9720 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9721 "1427 Invalid PCI device group: 0x%x\n", 9722 phba->pci_dev_grp); 9723 break; 9724 } 9725 return rc; 9726} 9727 9728/** 9729 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 9730 * @pdev: pointer to PCI device. 9731 * 9732 * This routine is registered to the PCI subsystem for error handling. This 9733 * function is called after PCI bus has been reset to restart the PCI card 9734 * from scratch, as if from a cold-boot. When this routine is invoked, it 9735 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 9736 * routine, which will perform the proper device reset. 9737 * 9738 * Return codes 9739 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9740 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9741 **/ 9742static pci_ers_result_t 9743lpfc_io_slot_reset(struct pci_dev *pdev) 9744{ 9745 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9746 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9747 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 9748 9749 switch (phba->pci_dev_grp) { 9750 case LPFC_PCI_DEV_LP: 9751 rc = lpfc_io_slot_reset_s3(pdev); 9752 break; 9753 case LPFC_PCI_DEV_OC: 9754 rc = lpfc_io_slot_reset_s4(pdev); 9755 break; 9756 default: 9757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9758 "1428 Invalid PCI device group: 0x%x\n", 9759 phba->pci_dev_grp); 9760 break; 9761 } 9762 return rc; 9763} 9764 9765/** 9766 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 9767 * @pdev: pointer to PCI device 9768 * 9769 * This routine is registered to the PCI subsystem for error handling. It 9770 * is called when kernel error recovery tells the lpfc driver that it is 9771 * OK to resume normal PCI operation after PCI bus error recovery. When 9772 * this routine is invoked, it dispatches the action to the proper SLI-3 9773 * or SLI-4 device io_resume routine, which will resume the device operation. 9774 **/ 9775static void 9776lpfc_io_resume(struct pci_dev *pdev) 9777{ 9778 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9779 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9780 9781 switch (phba->pci_dev_grp) { 9782 case LPFC_PCI_DEV_LP: 9783 lpfc_io_resume_s3(pdev); 9784 break; 9785 case LPFC_PCI_DEV_OC: 9786 lpfc_io_resume_s4(pdev); 9787 break; 9788 default: 9789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9790 "1429 Invalid PCI device group: 0x%x\n", 9791 phba->pci_dev_grp); 9792 break; 9793 } 9794 return; 9795} 9796 9797static struct pci_device_id lpfc_id_table[] = { 9798 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 9799 PCI_ANY_ID, PCI_ANY_ID, }, 9800 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 9801 PCI_ANY_ID, PCI_ANY_ID, }, 9802 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 9803 PCI_ANY_ID, PCI_ANY_ID, }, 9804 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 9805 PCI_ANY_ID, PCI_ANY_ID, }, 9806 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 9807 PCI_ANY_ID, PCI_ANY_ID, }, 9808 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 9809 PCI_ANY_ID, PCI_ANY_ID, }, 9810 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 9811 PCI_ANY_ID, PCI_ANY_ID, }, 9812 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 9813 PCI_ANY_ID, PCI_ANY_ID, }, 9814 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 9815 PCI_ANY_ID, PCI_ANY_ID, }, 9816 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 9817 PCI_ANY_ID, PCI_ANY_ID, }, 9818 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 9819 PCI_ANY_ID, PCI_ANY_ID, }, 9820 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 9821 PCI_ANY_ID, PCI_ANY_ID, }, 9822 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 9823 PCI_ANY_ID, PCI_ANY_ID, }, 9824 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 9825 PCI_ANY_ID, PCI_ANY_ID, }, 9826 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 9827 PCI_ANY_ID, PCI_ANY_ID, }, 9828 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 9829 PCI_ANY_ID, PCI_ANY_ID, }, 9830 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 9831 PCI_ANY_ID, PCI_ANY_ID, }, 9832 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 9833 PCI_ANY_ID, PCI_ANY_ID, }, 9834 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 9835 PCI_ANY_ID, PCI_ANY_ID, }, 9836 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 9837 PCI_ANY_ID, PCI_ANY_ID, }, 9838 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 9839 PCI_ANY_ID, PCI_ANY_ID, }, 9840 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 9841 PCI_ANY_ID, PCI_ANY_ID, }, 9842 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 9843 PCI_ANY_ID, PCI_ANY_ID, }, 9844 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 9845 PCI_ANY_ID, PCI_ANY_ID, }, 9846 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 9847 PCI_ANY_ID, PCI_ANY_ID, }, 9848 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 9849 PCI_ANY_ID, PCI_ANY_ID, }, 9850 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 9851 PCI_ANY_ID, PCI_ANY_ID, }, 9852 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 9853 PCI_ANY_ID, PCI_ANY_ID, }, 9854 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 9855 PCI_ANY_ID, PCI_ANY_ID, }, 9856 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 9857 PCI_ANY_ID, PCI_ANY_ID, }, 9858 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 9859 PCI_ANY_ID, PCI_ANY_ID, }, 9860 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 9861 PCI_ANY_ID, PCI_ANY_ID, }, 9862 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 9863 PCI_ANY_ID, PCI_ANY_ID, }, 9864 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 9865 PCI_ANY_ID, PCI_ANY_ID, }, 9866 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 9867 PCI_ANY_ID, PCI_ANY_ID, }, 9868 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 9869 PCI_ANY_ID, PCI_ANY_ID, }, 9870 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 9871 PCI_ANY_ID, PCI_ANY_ID, }, 9872 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 9873 PCI_ANY_ID, PCI_ANY_ID, }, 9874 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 9875 PCI_ANY_ID, PCI_ANY_ID, }, 9876 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 9877 PCI_ANY_ID, PCI_ANY_ID, }, 9878 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 9879 PCI_ANY_ID, PCI_ANY_ID, }, 9880 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, 9881 PCI_ANY_ID, PCI_ANY_ID, }, 9882 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, 9883 PCI_ANY_ID, PCI_ANY_ID, }, 9884 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF, 9885 PCI_ANY_ID, PCI_ANY_ID, }, 9886 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF, 9887 PCI_ANY_ID, PCI_ANY_ID, }, 9888 { 0 } 9889}; 9890 9891MODULE_DEVICE_TABLE(pci, lpfc_id_table); 9892 9893static struct pci_error_handlers lpfc_err_handler = { 9894 .error_detected = lpfc_io_error_detected, 9895 .slot_reset = lpfc_io_slot_reset, 9896 .resume = lpfc_io_resume, 9897}; 9898 9899static struct pci_driver lpfc_driver = { 9900 .name = LPFC_DRIVER_NAME, 9901 .id_table = lpfc_id_table, 9902 .probe = lpfc_pci_probe_one, 9903 .remove = __devexit_p(lpfc_pci_remove_one), 9904 .suspend = lpfc_pci_suspend_one, 9905 .resume = lpfc_pci_resume_one, 9906 .err_handler = &lpfc_err_handler, 9907}; 9908 9909/** 9910 * lpfc_init - lpfc module initialization routine 9911 * 9912 * This routine is to be invoked when the lpfc module is loaded into the 9913 * kernel. The special kernel macro module_init() is used to indicate the 9914 * role of this routine to the kernel as lpfc module entry point. 9915 * 9916 * Return codes 9917 * 0 - successful 9918 * -ENOMEM - FC attach transport failed 9919 * all others - failed 9920 */ 9921static int __init 9922lpfc_init(void) 9923{ 9924 int error = 0; 9925 9926 printk(LPFC_MODULE_DESC "\n"); 9927 printk(LPFC_COPYRIGHT "\n"); 9928 9929 if (lpfc_enable_npiv) { 9930 lpfc_transport_functions.vport_create = lpfc_vport_create; 9931 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 9932 } 9933 lpfc_transport_template = 9934 fc_attach_transport(&lpfc_transport_functions); 9935 if (lpfc_transport_template == NULL) 9936 return -ENOMEM; 9937 if (lpfc_enable_npiv) { 9938 lpfc_vport_transport_template = 9939 fc_attach_transport(&lpfc_vport_transport_functions); 9940 if (lpfc_vport_transport_template == NULL) { 9941 fc_release_transport(lpfc_transport_template); 9942 return -ENOMEM; 9943 } 9944 } 9945 error = pci_register_driver(&lpfc_driver); 9946 if (error) { 9947 fc_release_transport(lpfc_transport_template); 9948 if (lpfc_enable_npiv) 9949 fc_release_transport(lpfc_vport_transport_template); 9950 } 9951 9952 return error; 9953} 9954 9955/** 9956 * lpfc_exit - lpfc module removal routine 9957 * 9958 * This routine is invoked when the lpfc module is removed from the kernel. 9959 * The special kernel macro module_exit() is used to indicate the role of 9960 * this routine to the kernel as lpfc module exit point. 9961 */ 9962static void __exit 9963lpfc_exit(void) 9964{ 9965 pci_unregister_driver(&lpfc_driver); 9966 fc_release_transport(lpfc_transport_template); 9967 if (lpfc_enable_npiv) 9968 fc_release_transport(lpfc_vport_transport_template); 9969 if (_dump_buf_data) { 9970 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 9971 "_dump_buf_data at 0x%p\n", 9972 (1L << _dump_buf_data_order), _dump_buf_data); 9973 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 9974 } 9975 9976 if (_dump_buf_dif) { 9977 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 9978 "_dump_buf_dif at 0x%p\n", 9979 (1L << _dump_buf_dif_order), _dump_buf_dif); 9980 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 9981 } 9982} 9983 9984module_init(lpfc_init); 9985module_exit(lpfc_exit); 9986MODULE_LICENSE("GPL"); 9987MODULE_DESCRIPTION(LPFC_MODULE_DESC); 9988MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 9989MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 9990