lpfc_init.c revision 6669f9bb902b8c3f5e33cb8c32c8c0eec6ed68ed
1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2009 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 10 * modify it under the terms of version 2 of the GNU General * 11 * Public License as published by the Free Software Foundation. * 12 * This program is distributed in the hope that it will be useful. * 13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17 * TO BE LEGALLY INVALID. See the GNU General Public License for * 18 * more details, a copy of which can be found in the file COPYING * 19 * included with this package. * 20 *******************************************************************/ 21 22#include <linux/blkdev.h> 23#include <linux/delay.h> 24#include <linux/dma-mapping.h> 25#include <linux/idr.h> 26#include <linux/interrupt.h> 27#include <linux/kthread.h> 28#include <linux/pci.h> 29#include <linux/spinlock.h> 30#include <linux/ctype.h> 31 32#include <scsi/scsi.h> 33#include <scsi/scsi_device.h> 34#include <scsi/scsi_host.h> 35#include <scsi/scsi_transport_fc.h> 36 37#include "lpfc_hw4.h" 38#include "lpfc_hw.h" 39#include "lpfc_sli.h" 40#include "lpfc_sli4.h" 41#include "lpfc_nl.h" 42#include "lpfc_disc.h" 43#include "lpfc_scsi.h" 44#include "lpfc.h" 45#include "lpfc_logmsg.h" 46#include "lpfc_crtn.h" 47#include "lpfc_vport.h" 48#include "lpfc_version.h" 49 50char *_dump_buf_data; 51unsigned long _dump_buf_data_order; 52char *_dump_buf_dif; 53unsigned long _dump_buf_dif_order; 54spinlock_t _dump_buf_lock; 55 56static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 57static int lpfc_post_rcv_buf(struct lpfc_hba *); 58static int lpfc_sli4_queue_create(struct lpfc_hba *); 59static void lpfc_sli4_queue_destroy(struct lpfc_hba *); 60static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 61static int lpfc_setup_endian_order(struct lpfc_hba *); 62static int lpfc_sli4_read_config(struct lpfc_hba *); 63static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 64static void lpfc_free_sgl_list(struct lpfc_hba *); 65static int lpfc_init_sgl_list(struct lpfc_hba *); 66static int lpfc_init_active_sgl_array(struct lpfc_hba *); 67static void lpfc_free_active_sgl(struct lpfc_hba *); 68static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 69static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 70static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 71static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 72static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 73 74static struct scsi_transport_template *lpfc_transport_template = NULL; 75static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 76static DEFINE_IDR(lpfc_hba_index); 77 78/** 79 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 80 * @phba: pointer to lpfc hba data structure. 81 * 82 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 83 * mailbox command. It retrieves the revision information from the HBA and 84 * collects the Vital Product Data (VPD) about the HBA for preparing the 85 * configuration of the HBA. 86 * 87 * Return codes: 88 * 0 - success. 89 * -ERESTART - requests the SLI layer to reset the HBA and try again. 90 * Any other value - indicates an error. 91 **/ 92int 93lpfc_config_port_prep(struct lpfc_hba *phba) 94{ 95 lpfc_vpd_t *vp = &phba->vpd; 96 int i = 0, rc; 97 LPFC_MBOXQ_t *pmb; 98 MAILBOX_t *mb; 99 char *lpfc_vpd_data = NULL; 100 uint16_t offset = 0; 101 static char licensed[56] = 102 "key unlock for use with gnu public licensed code only\0"; 103 static int init_key = 1; 104 105 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 106 if (!pmb) { 107 phba->link_state = LPFC_HBA_ERROR; 108 return -ENOMEM; 109 } 110 111 mb = &pmb->u.mb; 112 phba->link_state = LPFC_INIT_MBX_CMDS; 113 114 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 115 if (init_key) { 116 uint32_t *ptext = (uint32_t *) licensed; 117 118 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 119 *ptext = cpu_to_be32(*ptext); 120 init_key = 0; 121 } 122 123 lpfc_read_nv(phba, pmb); 124 memset((char*)mb->un.varRDnvp.rsvd3, 0, 125 sizeof (mb->un.varRDnvp.rsvd3)); 126 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 127 sizeof (licensed)); 128 129 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 130 131 if (rc != MBX_SUCCESS) { 132 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 133 "0324 Config Port initialization " 134 "error, mbxCmd x%x READ_NVPARM, " 135 "mbxStatus x%x\n", 136 mb->mbxCommand, mb->mbxStatus); 137 mempool_free(pmb, phba->mbox_mem_pool); 138 return -ERESTART; 139 } 140 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 141 sizeof(phba->wwnn)); 142 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 143 sizeof(phba->wwpn)); 144 } 145 146 phba->sli3_options = 0x0; 147 148 /* Setup and issue mailbox READ REV command */ 149 lpfc_read_rev(phba, pmb); 150 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 151 if (rc != MBX_SUCCESS) { 152 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 153 "0439 Adapter failed to init, mbxCmd x%x " 154 "READ_REV, mbxStatus x%x\n", 155 mb->mbxCommand, mb->mbxStatus); 156 mempool_free( pmb, phba->mbox_mem_pool); 157 return -ERESTART; 158 } 159 160 161 /* 162 * The value of rr must be 1 since the driver set the cv field to 1. 163 * This setting requires the FW to set all revision fields. 164 */ 165 if (mb->un.varRdRev.rr == 0) { 166 vp->rev.rBit = 0; 167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 168 "0440 Adapter failed to init, READ_REV has " 169 "missing revision information.\n"); 170 mempool_free(pmb, phba->mbox_mem_pool); 171 return -ERESTART; 172 } 173 174 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 175 mempool_free(pmb, phba->mbox_mem_pool); 176 return -EINVAL; 177 } 178 179 /* Save information as VPD data */ 180 vp->rev.rBit = 1; 181 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 182 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 183 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 184 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 185 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 186 vp->rev.biuRev = mb->un.varRdRev.biuRev; 187 vp->rev.smRev = mb->un.varRdRev.smRev; 188 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 189 vp->rev.endecRev = mb->un.varRdRev.endecRev; 190 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 191 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 192 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 193 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 194 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 195 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 196 197 /* If the sli feature level is less then 9, we must 198 * tear down all RPIs and VPIs on link down if NPIV 199 * is enabled. 200 */ 201 if (vp->rev.feaLevelHigh < 9) 202 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 203 204 if (lpfc_is_LC_HBA(phba->pcidev->device)) 205 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 206 sizeof (phba->RandomData)); 207 208 /* Get adapter VPD information */ 209 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 210 if (!lpfc_vpd_data) 211 goto out_free_mbox; 212 213 do { 214 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 215 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 216 217 if (rc != MBX_SUCCESS) { 218 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 219 "0441 VPD not present on adapter, " 220 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 221 mb->mbxCommand, mb->mbxStatus); 222 mb->un.varDmp.word_cnt = 0; 223 } 224 /* dump mem may return a zero when finished or we got a 225 * mailbox error, either way we are done. 226 */ 227 if (mb->un.varDmp.word_cnt == 0) 228 break; 229 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 230 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 231 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 232 lpfc_vpd_data + offset, 233 mb->un.varDmp.word_cnt); 234 offset += mb->un.varDmp.word_cnt; 235 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 236 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 237 238 kfree(lpfc_vpd_data); 239out_free_mbox: 240 mempool_free(pmb, phba->mbox_mem_pool); 241 return 0; 242} 243 244/** 245 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 246 * @phba: pointer to lpfc hba data structure. 247 * @pmboxq: pointer to the driver internal queue element for mailbox command. 248 * 249 * This is the completion handler for driver's configuring asynchronous event 250 * mailbox command to the device. If the mailbox command returns successfully, 251 * it will set internal async event support flag to 1; otherwise, it will 252 * set internal async event support flag to 0. 253 **/ 254static void 255lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 256{ 257 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 258 phba->temp_sensor_support = 1; 259 else 260 phba->temp_sensor_support = 0; 261 mempool_free(pmboxq, phba->mbox_mem_pool); 262 return; 263} 264 265/** 266 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 267 * @phba: pointer to lpfc hba data structure. 268 * @pmboxq: pointer to the driver internal queue element for mailbox command. 269 * 270 * This is the completion handler for dump mailbox command for getting 271 * wake up parameters. When this command complete, the response contain 272 * Option rom version of the HBA. This function translate the version number 273 * into a human readable string and store it in OptionROMVersion. 274 **/ 275static void 276lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 277{ 278 struct prog_id *prg; 279 uint32_t prog_id_word; 280 char dist = ' '; 281 /* character array used for decoding dist type. */ 282 char dist_char[] = "nabx"; 283 284 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 285 mempool_free(pmboxq, phba->mbox_mem_pool); 286 return; 287 } 288 289 prg = (struct prog_id *) &prog_id_word; 290 291 /* word 7 contain option rom version */ 292 prog_id_word = pmboxq->u.mb.un.varWords[7]; 293 294 /* Decode the Option rom version word to a readable string */ 295 if (prg->dist < 4) 296 dist = dist_char[prg->dist]; 297 298 if ((prg->dist == 3) && (prg->num == 0)) 299 sprintf(phba->OptionROMVersion, "%d.%d%d", 300 prg->ver, prg->rev, prg->lev); 301 else 302 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 303 prg->ver, prg->rev, prg->lev, 304 dist, prg->num); 305 mempool_free(pmboxq, phba->mbox_mem_pool); 306 return; 307} 308 309/** 310 * lpfc_config_port_post - Perform lpfc initialization after config port 311 * @phba: pointer to lpfc hba data structure. 312 * 313 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 314 * command call. It performs all internal resource and state setups on the 315 * port: post IOCB buffers, enable appropriate host interrupt attentions, 316 * ELS ring timers, etc. 317 * 318 * Return codes 319 * 0 - success. 320 * Any other value - error. 321 **/ 322int 323lpfc_config_port_post(struct lpfc_hba *phba) 324{ 325 struct lpfc_vport *vport = phba->pport; 326 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 327 LPFC_MBOXQ_t *pmb; 328 MAILBOX_t *mb; 329 struct lpfc_dmabuf *mp; 330 struct lpfc_sli *psli = &phba->sli; 331 uint32_t status, timeout; 332 int i, j; 333 int rc; 334 335 spin_lock_irq(&phba->hbalock); 336 /* 337 * If the Config port completed correctly the HBA is not 338 * over heated any more. 339 */ 340 if (phba->over_temp_state == HBA_OVER_TEMP) 341 phba->over_temp_state = HBA_NORMAL_TEMP; 342 spin_unlock_irq(&phba->hbalock); 343 344 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 345 if (!pmb) { 346 phba->link_state = LPFC_HBA_ERROR; 347 return -ENOMEM; 348 } 349 mb = &pmb->u.mb; 350 351 /* Get login parameters for NID. */ 352 lpfc_read_sparam(phba, pmb, 0); 353 pmb->vport = vport; 354 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 355 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 356 "0448 Adapter failed init, mbxCmd x%x " 357 "READ_SPARM mbxStatus x%x\n", 358 mb->mbxCommand, mb->mbxStatus); 359 phba->link_state = LPFC_HBA_ERROR; 360 mp = (struct lpfc_dmabuf *) pmb->context1; 361 mempool_free( pmb, phba->mbox_mem_pool); 362 lpfc_mbuf_free(phba, mp->virt, mp->phys); 363 kfree(mp); 364 return -EIO; 365 } 366 367 mp = (struct lpfc_dmabuf *) pmb->context1; 368 369 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 370 lpfc_mbuf_free(phba, mp->virt, mp->phys); 371 kfree(mp); 372 pmb->context1 = NULL; 373 374 if (phba->cfg_soft_wwnn) 375 u64_to_wwn(phba->cfg_soft_wwnn, 376 vport->fc_sparam.nodeName.u.wwn); 377 if (phba->cfg_soft_wwpn) 378 u64_to_wwn(phba->cfg_soft_wwpn, 379 vport->fc_sparam.portName.u.wwn); 380 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 381 sizeof (struct lpfc_name)); 382 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 383 sizeof (struct lpfc_name)); 384 385 /* Update the fc_host data structures with new wwn. */ 386 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 387 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 388 fc_host_max_npiv_vports(shost) = phba->max_vpi; 389 390 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 391 /* This should be consolidated into parse_vpd ? - mr */ 392 if (phba->SerialNumber[0] == 0) { 393 uint8_t *outptr; 394 395 outptr = &vport->fc_nodename.u.s.IEEE[0]; 396 for (i = 0; i < 12; i++) { 397 status = *outptr++; 398 j = ((status & 0xf0) >> 4); 399 if (j <= 9) 400 phba->SerialNumber[i] = 401 (char)((uint8_t) 0x30 + (uint8_t) j); 402 else 403 phba->SerialNumber[i] = 404 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 405 i++; 406 j = (status & 0xf); 407 if (j <= 9) 408 phba->SerialNumber[i] = 409 (char)((uint8_t) 0x30 + (uint8_t) j); 410 else 411 phba->SerialNumber[i] = 412 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 413 } 414 } 415 416 lpfc_read_config(phba, pmb); 417 pmb->vport = vport; 418 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 420 "0453 Adapter failed to init, mbxCmd x%x " 421 "READ_CONFIG, mbxStatus x%x\n", 422 mb->mbxCommand, mb->mbxStatus); 423 phba->link_state = LPFC_HBA_ERROR; 424 mempool_free( pmb, phba->mbox_mem_pool); 425 return -EIO; 426 } 427 428 /* Check if the port is disabled */ 429 lpfc_sli_read_link_ste(phba); 430 431 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 432 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 433 phba->cfg_hba_queue_depth = 434 (mb->un.varRdConfig.max_xri + 1) - 435 lpfc_sli4_get_els_iocb_cnt(phba); 436 437 phba->lmt = mb->un.varRdConfig.lmt; 438 439 /* Get the default values for Model Name and Description */ 440 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 441 442 if ((phba->cfg_link_speed > LINK_SPEED_10G) 443 || ((phba->cfg_link_speed == LINK_SPEED_1G) 444 && !(phba->lmt & LMT_1Gb)) 445 || ((phba->cfg_link_speed == LINK_SPEED_2G) 446 && !(phba->lmt & LMT_2Gb)) 447 || ((phba->cfg_link_speed == LINK_SPEED_4G) 448 && !(phba->lmt & LMT_4Gb)) 449 || ((phba->cfg_link_speed == LINK_SPEED_8G) 450 && !(phba->lmt & LMT_8Gb)) 451 || ((phba->cfg_link_speed == LINK_SPEED_10G) 452 && !(phba->lmt & LMT_10Gb))) { 453 /* Reset link speed to auto */ 454 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT, 455 "1302 Invalid speed for this board: " 456 "Reset link speed to auto: x%x\n", 457 phba->cfg_link_speed); 458 phba->cfg_link_speed = LINK_SPEED_AUTO; 459 } 460 461 phba->link_state = LPFC_LINK_DOWN; 462 463 /* Only process IOCBs on ELS ring till hba_state is READY */ 464 if (psli->ring[psli->extra_ring].cmdringaddr) 465 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 466 if (psli->ring[psli->fcp_ring].cmdringaddr) 467 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 468 if (psli->ring[psli->next_ring].cmdringaddr) 469 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 470 471 /* Post receive buffers for desired rings */ 472 if (phba->sli_rev != 3) 473 lpfc_post_rcv_buf(phba); 474 475 /* 476 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 477 */ 478 if (phba->intr_type == MSIX) { 479 rc = lpfc_config_msi(phba, pmb); 480 if (rc) { 481 mempool_free(pmb, phba->mbox_mem_pool); 482 return -EIO; 483 } 484 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 485 if (rc != MBX_SUCCESS) { 486 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 487 "0352 Config MSI mailbox command " 488 "failed, mbxCmd x%x, mbxStatus x%x\n", 489 pmb->u.mb.mbxCommand, 490 pmb->u.mb.mbxStatus); 491 mempool_free(pmb, phba->mbox_mem_pool); 492 return -EIO; 493 } 494 } 495 496 spin_lock_irq(&phba->hbalock); 497 /* Initialize ERATT handling flag */ 498 phba->hba_flag &= ~HBA_ERATT_HANDLED; 499 500 /* Enable appropriate host interrupts */ 501 status = readl(phba->HCregaddr); 502 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 503 if (psli->num_rings > 0) 504 status |= HC_R0INT_ENA; 505 if (psli->num_rings > 1) 506 status |= HC_R1INT_ENA; 507 if (psli->num_rings > 2) 508 status |= HC_R2INT_ENA; 509 if (psli->num_rings > 3) 510 status |= HC_R3INT_ENA; 511 512 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 513 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 514 status &= ~(HC_R0INT_ENA); 515 516 writel(status, phba->HCregaddr); 517 readl(phba->HCregaddr); /* flush */ 518 spin_unlock_irq(&phba->hbalock); 519 520 /* Set up ring-0 (ELS) timer */ 521 timeout = phba->fc_ratov * 2; 522 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 523 /* Set up heart beat (HB) timer */ 524 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 525 phba->hb_outstanding = 0; 526 phba->last_completion_time = jiffies; 527 /* Set up error attention (ERATT) polling timer */ 528 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 529 530 if (phba->hba_flag & LINK_DISABLED) { 531 lpfc_printf_log(phba, 532 KERN_ERR, LOG_INIT, 533 "2598 Adapter Link is disabled.\n"); 534 lpfc_down_link(phba, pmb); 535 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 536 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 537 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 538 lpfc_printf_log(phba, 539 KERN_ERR, LOG_INIT, 540 "2599 Adapter failed to issue DOWN_LINK" 541 " mbox command rc 0x%x\n", rc); 542 543 mempool_free(pmb, phba->mbox_mem_pool); 544 return -EIO; 545 } 546 } else { 547 lpfc_init_link(phba, pmb, phba->cfg_topology, 548 phba->cfg_link_speed); 549 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 550 lpfc_set_loopback_flag(phba); 551 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 552 if (rc != MBX_SUCCESS) { 553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 554 "0454 Adapter failed to init, mbxCmd x%x " 555 "INIT_LINK, mbxStatus x%x\n", 556 mb->mbxCommand, mb->mbxStatus); 557 558 /* Clear all interrupt enable conditions */ 559 writel(0, phba->HCregaddr); 560 readl(phba->HCregaddr); /* flush */ 561 /* Clear all pending interrupts */ 562 writel(0xffffffff, phba->HAregaddr); 563 readl(phba->HAregaddr); /* flush */ 564 565 phba->link_state = LPFC_HBA_ERROR; 566 if (rc != MBX_BUSY) 567 mempool_free(pmb, phba->mbox_mem_pool); 568 return -EIO; 569 } 570 } 571 /* MBOX buffer will be freed in mbox compl */ 572 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 573 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 574 pmb->mbox_cmpl = lpfc_config_async_cmpl; 575 pmb->vport = phba->pport; 576 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 577 578 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 579 lpfc_printf_log(phba, 580 KERN_ERR, 581 LOG_INIT, 582 "0456 Adapter failed to issue " 583 "ASYNCEVT_ENABLE mbox status x%x\n", 584 rc); 585 mempool_free(pmb, phba->mbox_mem_pool); 586 } 587 588 /* Get Option rom version */ 589 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 590 lpfc_dump_wakeup_param(phba, pmb); 591 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 592 pmb->vport = phba->pport; 593 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 594 595 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 596 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 597 "to get Option ROM version status x%x\n", rc); 598 mempool_free(pmb, phba->mbox_mem_pool); 599 } 600 601 return 0; 602} 603 604/** 605 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 606 * @phba: pointer to lpfc HBA data structure. 607 * 608 * This routine will do LPFC uninitialization before the HBA is reset when 609 * bringing down the SLI Layer. 610 * 611 * Return codes 612 * 0 - success. 613 * Any other value - error. 614 **/ 615int 616lpfc_hba_down_prep(struct lpfc_hba *phba) 617{ 618 struct lpfc_vport **vports; 619 int i; 620 621 if (phba->sli_rev <= LPFC_SLI_REV3) { 622 /* Disable interrupts */ 623 writel(0, phba->HCregaddr); 624 readl(phba->HCregaddr); /* flush */ 625 } 626 627 if (phba->pport->load_flag & FC_UNLOADING) 628 lpfc_cleanup_discovery_resources(phba->pport); 629 else { 630 vports = lpfc_create_vport_work_array(phba); 631 if (vports != NULL) 632 for (i = 0; i <= phba->max_vports && 633 vports[i] != NULL; i++) 634 lpfc_cleanup_discovery_resources(vports[i]); 635 lpfc_destroy_vport_work_array(phba, vports); 636 } 637 return 0; 638} 639 640/** 641 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 642 * @phba: pointer to lpfc HBA data structure. 643 * 644 * This routine will do uninitialization after the HBA is reset when bring 645 * down the SLI Layer. 646 * 647 * Return codes 648 * 0 - sucess. 649 * Any other value - error. 650 **/ 651static int 652lpfc_hba_down_post_s3(struct lpfc_hba *phba) 653{ 654 struct lpfc_sli *psli = &phba->sli; 655 struct lpfc_sli_ring *pring; 656 struct lpfc_dmabuf *mp, *next_mp; 657 LIST_HEAD(completions); 658 int i; 659 660 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 661 lpfc_sli_hbqbuf_free_all(phba); 662 else { 663 /* Cleanup preposted buffers on the ELS ring */ 664 pring = &psli->ring[LPFC_ELS_RING]; 665 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 666 list_del(&mp->list); 667 pring->postbufq_cnt--; 668 lpfc_mbuf_free(phba, mp->virt, mp->phys); 669 kfree(mp); 670 } 671 } 672 673 spin_lock_irq(&phba->hbalock); 674 for (i = 0; i < psli->num_rings; i++) { 675 pring = &psli->ring[i]; 676 677 /* At this point in time the HBA is either reset or DOA. Either 678 * way, nothing should be on txcmplq as it will NEVER complete. 679 */ 680 list_splice_init(&pring->txcmplq, &completions); 681 pring->txcmplq_cnt = 0; 682 spin_unlock_irq(&phba->hbalock); 683 684 /* Cancel all the IOCBs from the completions list */ 685 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 686 IOERR_SLI_ABORTED); 687 688 lpfc_sli_abort_iocb_ring(phba, pring); 689 spin_lock_irq(&phba->hbalock); 690 } 691 spin_unlock_irq(&phba->hbalock); 692 693 return 0; 694} 695/** 696 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 697 * @phba: pointer to lpfc HBA data structure. 698 * 699 * This routine will do uninitialization after the HBA is reset when bring 700 * down the SLI Layer. 701 * 702 * Return codes 703 * 0 - sucess. 704 * Any other value - error. 705 **/ 706static int 707lpfc_hba_down_post_s4(struct lpfc_hba *phba) 708{ 709 struct lpfc_scsi_buf *psb, *psb_next; 710 LIST_HEAD(aborts); 711 int ret; 712 unsigned long iflag = 0; 713 ret = lpfc_hba_down_post_s3(phba); 714 if (ret) 715 return ret; 716 /* At this point in time the HBA is either reset or DOA. Either 717 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 718 * on the lpfc_sgl_list so that it can either be freed if the 719 * driver is unloading or reposted if the driver is restarting 720 * the port. 721 */ 722 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 723 /* scsl_buf_list */ 724 /* abts_sgl_list_lock required because worker thread uses this 725 * list. 726 */ 727 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 728 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 729 &phba->sli4_hba.lpfc_sgl_list); 730 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 731 /* abts_scsi_buf_list_lock required because worker thread uses this 732 * list. 733 */ 734 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 735 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 736 &aborts); 737 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 738 spin_unlock_irq(&phba->hbalock); 739 740 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 741 psb->pCmd = NULL; 742 psb->status = IOSTAT_SUCCESS; 743 } 744 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 745 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 746 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 747 return 0; 748} 749 750/** 751 * lpfc_hba_down_post - Wrapper func for hba down post routine 752 * @phba: pointer to lpfc HBA data structure. 753 * 754 * This routine wraps the actual SLI3 or SLI4 routine for performing 755 * uninitialization after the HBA is reset when bring down the SLI Layer. 756 * 757 * Return codes 758 * 0 - sucess. 759 * Any other value - error. 760 **/ 761int 762lpfc_hba_down_post(struct lpfc_hba *phba) 763{ 764 return (*phba->lpfc_hba_down_post)(phba); 765} 766 767/** 768 * lpfc_hb_timeout - The HBA-timer timeout handler 769 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 770 * 771 * This is the HBA-timer timeout handler registered to the lpfc driver. When 772 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 773 * work-port-events bitmap and the worker thread is notified. This timeout 774 * event will be used by the worker thread to invoke the actual timeout 775 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 776 * be performed in the timeout handler and the HBA timeout event bit shall 777 * be cleared by the worker thread after it has taken the event bitmap out. 778 **/ 779static void 780lpfc_hb_timeout(unsigned long ptr) 781{ 782 struct lpfc_hba *phba; 783 uint32_t tmo_posted; 784 unsigned long iflag; 785 786 phba = (struct lpfc_hba *)ptr; 787 788 /* Check for heart beat timeout conditions */ 789 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 790 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 791 if (!tmo_posted) 792 phba->pport->work_port_events |= WORKER_HB_TMO; 793 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 794 795 /* Tell the worker thread there is work to do */ 796 if (!tmo_posted) 797 lpfc_worker_wake_up(phba); 798 return; 799} 800 801/** 802 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 803 * @phba: pointer to lpfc hba data structure. 804 * @pmboxq: pointer to the driver internal queue element for mailbox command. 805 * 806 * This is the callback function to the lpfc heart-beat mailbox command. 807 * If configured, the lpfc driver issues the heart-beat mailbox command to 808 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 809 * heart-beat mailbox command is issued, the driver shall set up heart-beat 810 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 811 * heart-beat outstanding state. Once the mailbox command comes back and 812 * no error conditions detected, the heart-beat mailbox command timer is 813 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 814 * state is cleared for the next heart-beat. If the timer expired with the 815 * heart-beat outstanding state set, the driver will put the HBA offline. 816 **/ 817static void 818lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 819{ 820 unsigned long drvr_flag; 821 822 spin_lock_irqsave(&phba->hbalock, drvr_flag); 823 phba->hb_outstanding = 0; 824 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 825 826 /* Check and reset heart-beat timer is necessary */ 827 mempool_free(pmboxq, phba->mbox_mem_pool); 828 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 829 !(phba->link_state == LPFC_HBA_ERROR) && 830 !(phba->pport->load_flag & FC_UNLOADING)) 831 mod_timer(&phba->hb_tmofunc, 832 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 833 return; 834} 835 836/** 837 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 838 * @phba: pointer to lpfc hba data structure. 839 * 840 * This is the actual HBA-timer timeout handler to be invoked by the worker 841 * thread whenever the HBA timer fired and HBA-timeout event posted. This 842 * handler performs any periodic operations needed for the device. If such 843 * periodic event has already been attended to either in the interrupt handler 844 * or by processing slow-ring or fast-ring events within the HBA-timer 845 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 846 * the timer for the next timeout period. If lpfc heart-beat mailbox command 847 * is configured and there is no heart-beat mailbox command outstanding, a 848 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 849 * has been a heart-beat mailbox command outstanding, the HBA shall be put 850 * to offline. 851 **/ 852void 853lpfc_hb_timeout_handler(struct lpfc_hba *phba) 854{ 855 LPFC_MBOXQ_t *pmboxq; 856 struct lpfc_dmabuf *buf_ptr; 857 int retval; 858 struct lpfc_sli *psli = &phba->sli; 859 LIST_HEAD(completions); 860 861 if ((phba->link_state == LPFC_HBA_ERROR) || 862 (phba->pport->load_flag & FC_UNLOADING) || 863 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 864 return; 865 866 spin_lock_irq(&phba->pport->work_port_lock); 867 868 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 869 jiffies)) { 870 spin_unlock_irq(&phba->pport->work_port_lock); 871 if (!phba->hb_outstanding) 872 mod_timer(&phba->hb_tmofunc, 873 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 874 else 875 mod_timer(&phba->hb_tmofunc, 876 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 877 return; 878 } 879 spin_unlock_irq(&phba->pport->work_port_lock); 880 881 if (phba->elsbuf_cnt && 882 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 883 spin_lock_irq(&phba->hbalock); 884 list_splice_init(&phba->elsbuf, &completions); 885 phba->elsbuf_cnt = 0; 886 phba->elsbuf_prev_cnt = 0; 887 spin_unlock_irq(&phba->hbalock); 888 889 while (!list_empty(&completions)) { 890 list_remove_head(&completions, buf_ptr, 891 struct lpfc_dmabuf, list); 892 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 893 kfree(buf_ptr); 894 } 895 } 896 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 897 898 /* If there is no heart beat outstanding, issue a heartbeat command */ 899 if (phba->cfg_enable_hba_heartbeat) { 900 if (!phba->hb_outstanding) { 901 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 902 if (!pmboxq) { 903 mod_timer(&phba->hb_tmofunc, 904 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 905 return; 906 } 907 908 lpfc_heart_beat(phba, pmboxq); 909 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 910 pmboxq->vport = phba->pport; 911 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); 912 913 if (retval != MBX_BUSY && retval != MBX_SUCCESS) { 914 mempool_free(pmboxq, phba->mbox_mem_pool); 915 mod_timer(&phba->hb_tmofunc, 916 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 917 return; 918 } 919 mod_timer(&phba->hb_tmofunc, 920 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 921 phba->hb_outstanding = 1; 922 return; 923 } else { 924 /* 925 * If heart beat timeout called with hb_outstanding set 926 * we need to take the HBA offline. 927 */ 928 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 929 "0459 Adapter heartbeat failure, " 930 "taking this port offline.\n"); 931 932 spin_lock_irq(&phba->hbalock); 933 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 934 spin_unlock_irq(&phba->hbalock); 935 936 lpfc_offline_prep(phba); 937 lpfc_offline(phba); 938 lpfc_unblock_mgmt_io(phba); 939 phba->link_state = LPFC_HBA_ERROR; 940 lpfc_hba_down_post(phba); 941 } 942 } 943} 944 945/** 946 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 947 * @phba: pointer to lpfc hba data structure. 948 * 949 * This routine is called to bring the HBA offline when HBA hardware error 950 * other than Port Error 6 has been detected. 951 **/ 952static void 953lpfc_offline_eratt(struct lpfc_hba *phba) 954{ 955 struct lpfc_sli *psli = &phba->sli; 956 957 spin_lock_irq(&phba->hbalock); 958 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 959 spin_unlock_irq(&phba->hbalock); 960 lpfc_offline_prep(phba); 961 962 lpfc_offline(phba); 963 lpfc_reset_barrier(phba); 964 spin_lock_irq(&phba->hbalock); 965 lpfc_sli_brdreset(phba); 966 spin_unlock_irq(&phba->hbalock); 967 lpfc_hba_down_post(phba); 968 lpfc_sli_brdready(phba, HS_MBRDY); 969 lpfc_unblock_mgmt_io(phba); 970 phba->link_state = LPFC_HBA_ERROR; 971 return; 972} 973 974/** 975 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 976 * @phba: pointer to lpfc hba data structure. 977 * 978 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 979 * other than Port Error 6 has been detected. 980 **/ 981static void 982lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 983{ 984 lpfc_offline_prep(phba); 985 lpfc_offline(phba); 986 lpfc_sli4_brdreset(phba); 987 lpfc_hba_down_post(phba); 988 lpfc_sli4_post_status_check(phba); 989 lpfc_unblock_mgmt_io(phba); 990 phba->link_state = LPFC_HBA_ERROR; 991} 992 993/** 994 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 995 * @phba: pointer to lpfc hba data structure. 996 * 997 * This routine is invoked to handle the deferred HBA hardware error 998 * conditions. This type of error is indicated by HBA by setting ER1 999 * and another ER bit in the host status register. The driver will 1000 * wait until the ER1 bit clears before handling the error condition. 1001 **/ 1002static void 1003lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1004{ 1005 uint32_t old_host_status = phba->work_hs; 1006 struct lpfc_sli_ring *pring; 1007 struct lpfc_sli *psli = &phba->sli; 1008 1009 /* If the pci channel is offline, ignore possible errors, 1010 * since we cannot communicate with the pci card anyway. 1011 */ 1012 if (pci_channel_offline(phba->pcidev)) { 1013 spin_lock_irq(&phba->hbalock); 1014 phba->hba_flag &= ~DEFER_ERATT; 1015 spin_unlock_irq(&phba->hbalock); 1016 return; 1017 } 1018 1019 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1020 "0479 Deferred Adapter Hardware Error " 1021 "Data: x%x x%x x%x\n", 1022 phba->work_hs, 1023 phba->work_status[0], phba->work_status[1]); 1024 1025 spin_lock_irq(&phba->hbalock); 1026 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1027 spin_unlock_irq(&phba->hbalock); 1028 1029 1030 /* 1031 * Firmware stops when it triggred erratt. That could cause the I/Os 1032 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1033 * SCSI layer retry it after re-establishing link. 1034 */ 1035 pring = &psli->ring[psli->fcp_ring]; 1036 lpfc_sli_abort_iocb_ring(phba, pring); 1037 1038 /* 1039 * There was a firmware error. Take the hba offline and then 1040 * attempt to restart it. 1041 */ 1042 lpfc_offline_prep(phba); 1043 lpfc_offline(phba); 1044 1045 /* Wait for the ER1 bit to clear.*/ 1046 while (phba->work_hs & HS_FFER1) { 1047 msleep(100); 1048 phba->work_hs = readl(phba->HSregaddr); 1049 /* If driver is unloading let the worker thread continue */ 1050 if (phba->pport->load_flag & FC_UNLOADING) { 1051 phba->work_hs = 0; 1052 break; 1053 } 1054 } 1055 1056 /* 1057 * This is to ptrotect against a race condition in which 1058 * first write to the host attention register clear the 1059 * host status register. 1060 */ 1061 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1062 phba->work_hs = old_host_status & ~HS_FFER1; 1063 1064 spin_lock_irq(&phba->hbalock); 1065 phba->hba_flag &= ~DEFER_ERATT; 1066 spin_unlock_irq(&phba->hbalock); 1067 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1068 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1069} 1070 1071static void 1072lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1073{ 1074 struct lpfc_board_event_header board_event; 1075 struct Scsi_Host *shost; 1076 1077 board_event.event_type = FC_REG_BOARD_EVENT; 1078 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1079 shost = lpfc_shost_from_vport(phba->pport); 1080 fc_host_post_vendor_event(shost, fc_get_event_number(), 1081 sizeof(board_event), 1082 (char *) &board_event, 1083 LPFC_NL_VENDOR_ID); 1084} 1085 1086/** 1087 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1088 * @phba: pointer to lpfc hba data structure. 1089 * 1090 * This routine is invoked to handle the following HBA hardware error 1091 * conditions: 1092 * 1 - HBA error attention interrupt 1093 * 2 - DMA ring index out of range 1094 * 3 - Mailbox command came back as unknown 1095 **/ 1096static void 1097lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1098{ 1099 struct lpfc_vport *vport = phba->pport; 1100 struct lpfc_sli *psli = &phba->sli; 1101 struct lpfc_sli_ring *pring; 1102 uint32_t event_data; 1103 unsigned long temperature; 1104 struct temp_event temp_event_data; 1105 struct Scsi_Host *shost; 1106 1107 /* If the pci channel is offline, ignore possible errors, 1108 * since we cannot communicate with the pci card anyway. 1109 */ 1110 if (pci_channel_offline(phba->pcidev)) { 1111 spin_lock_irq(&phba->hbalock); 1112 phba->hba_flag &= ~DEFER_ERATT; 1113 spin_unlock_irq(&phba->hbalock); 1114 return; 1115 } 1116 1117 /* If resets are disabled then leave the HBA alone and return */ 1118 if (!phba->cfg_enable_hba_reset) 1119 return; 1120 1121 /* Send an internal error event to mgmt application */ 1122 lpfc_board_errevt_to_mgmt(phba); 1123 1124 if (phba->hba_flag & DEFER_ERATT) 1125 lpfc_handle_deferred_eratt(phba); 1126 1127 if (phba->work_hs & HS_FFER6) { 1128 /* Re-establishing Link */ 1129 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1130 "1301 Re-establishing Link " 1131 "Data: x%x x%x x%x\n", 1132 phba->work_hs, 1133 phba->work_status[0], phba->work_status[1]); 1134 1135 spin_lock_irq(&phba->hbalock); 1136 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1137 spin_unlock_irq(&phba->hbalock); 1138 1139 /* 1140 * Firmware stops when it triggled erratt with HS_FFER6. 1141 * That could cause the I/Os dropped by the firmware. 1142 * Error iocb (I/O) on txcmplq and let the SCSI layer 1143 * retry it after re-establishing link. 1144 */ 1145 pring = &psli->ring[psli->fcp_ring]; 1146 lpfc_sli_abort_iocb_ring(phba, pring); 1147 1148 /* 1149 * There was a firmware error. Take the hba offline and then 1150 * attempt to restart it. 1151 */ 1152 lpfc_offline_prep(phba); 1153 lpfc_offline(phba); 1154 lpfc_sli_brdrestart(phba); 1155 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1156 lpfc_unblock_mgmt_io(phba); 1157 return; 1158 } 1159 lpfc_unblock_mgmt_io(phba); 1160 } else if (phba->work_hs & HS_CRIT_TEMP) { 1161 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1162 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1163 temp_event_data.event_code = LPFC_CRIT_TEMP; 1164 temp_event_data.data = (uint32_t)temperature; 1165 1166 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1167 "0406 Adapter maximum temperature exceeded " 1168 "(%ld), taking this port offline " 1169 "Data: x%x x%x x%x\n", 1170 temperature, phba->work_hs, 1171 phba->work_status[0], phba->work_status[1]); 1172 1173 shost = lpfc_shost_from_vport(phba->pport); 1174 fc_host_post_vendor_event(shost, fc_get_event_number(), 1175 sizeof(temp_event_data), 1176 (char *) &temp_event_data, 1177 SCSI_NL_VID_TYPE_PCI 1178 | PCI_VENDOR_ID_EMULEX); 1179 1180 spin_lock_irq(&phba->hbalock); 1181 phba->over_temp_state = HBA_OVER_TEMP; 1182 spin_unlock_irq(&phba->hbalock); 1183 lpfc_offline_eratt(phba); 1184 1185 } else { 1186 /* The if clause above forces this code path when the status 1187 * failure is a value other than FFER6. Do not call the offline 1188 * twice. This is the adapter hardware error path. 1189 */ 1190 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1191 "0457 Adapter Hardware Error " 1192 "Data: x%x x%x x%x\n", 1193 phba->work_hs, 1194 phba->work_status[0], phba->work_status[1]); 1195 1196 event_data = FC_REG_DUMP_EVENT; 1197 shost = lpfc_shost_from_vport(vport); 1198 fc_host_post_vendor_event(shost, fc_get_event_number(), 1199 sizeof(event_data), (char *) &event_data, 1200 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1201 1202 lpfc_offline_eratt(phba); 1203 } 1204 return; 1205} 1206 1207/** 1208 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1209 * @phba: pointer to lpfc hba data structure. 1210 * 1211 * This routine is invoked to handle the SLI4 HBA hardware error attention 1212 * conditions. 1213 **/ 1214static void 1215lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1216{ 1217 struct lpfc_vport *vport = phba->pport; 1218 uint32_t event_data; 1219 struct Scsi_Host *shost; 1220 1221 /* If the pci channel is offline, ignore possible errors, since 1222 * we cannot communicate with the pci card anyway. 1223 */ 1224 if (pci_channel_offline(phba->pcidev)) 1225 return; 1226 /* If resets are disabled then leave the HBA alone and return */ 1227 if (!phba->cfg_enable_hba_reset) 1228 return; 1229 1230 /* Send an internal error event to mgmt application */ 1231 lpfc_board_errevt_to_mgmt(phba); 1232 1233 /* For now, the actual action for SLI4 device handling is not 1234 * specified yet, just treated it as adaptor hardware failure 1235 */ 1236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1237 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n", 1238 phba->work_status[0], phba->work_status[1]); 1239 1240 event_data = FC_REG_DUMP_EVENT; 1241 shost = lpfc_shost_from_vport(vport); 1242 fc_host_post_vendor_event(shost, fc_get_event_number(), 1243 sizeof(event_data), (char *) &event_data, 1244 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1245 1246 lpfc_sli4_offline_eratt(phba); 1247} 1248 1249/** 1250 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1251 * @phba: pointer to lpfc HBA data structure. 1252 * 1253 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1254 * routine from the API jump table function pointer from the lpfc_hba struct. 1255 * 1256 * Return codes 1257 * 0 - sucess. 1258 * Any other value - error. 1259 **/ 1260void 1261lpfc_handle_eratt(struct lpfc_hba *phba) 1262{ 1263 (*phba->lpfc_handle_eratt)(phba); 1264} 1265 1266/** 1267 * lpfc_handle_latt - The HBA link event handler 1268 * @phba: pointer to lpfc hba data structure. 1269 * 1270 * This routine is invoked from the worker thread to handle a HBA host 1271 * attention link event. 1272 **/ 1273void 1274lpfc_handle_latt(struct lpfc_hba *phba) 1275{ 1276 struct lpfc_vport *vport = phba->pport; 1277 struct lpfc_sli *psli = &phba->sli; 1278 LPFC_MBOXQ_t *pmb; 1279 volatile uint32_t control; 1280 struct lpfc_dmabuf *mp; 1281 int rc = 0; 1282 1283 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1284 if (!pmb) { 1285 rc = 1; 1286 goto lpfc_handle_latt_err_exit; 1287 } 1288 1289 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1290 if (!mp) { 1291 rc = 2; 1292 goto lpfc_handle_latt_free_pmb; 1293 } 1294 1295 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1296 if (!mp->virt) { 1297 rc = 3; 1298 goto lpfc_handle_latt_free_mp; 1299 } 1300 1301 /* Cleanup any outstanding ELS commands */ 1302 lpfc_els_flush_all_cmd(phba); 1303 1304 psli->slistat.link_event++; 1305 lpfc_read_la(phba, pmb, mp); 1306 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 1307 pmb->vport = vport; 1308 /* Block ELS IOCBs until we have processed this mbox command */ 1309 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1310 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1311 if (rc == MBX_NOT_FINISHED) { 1312 rc = 4; 1313 goto lpfc_handle_latt_free_mbuf; 1314 } 1315 1316 /* Clear Link Attention in HA REG */ 1317 spin_lock_irq(&phba->hbalock); 1318 writel(HA_LATT, phba->HAregaddr); 1319 readl(phba->HAregaddr); /* flush */ 1320 spin_unlock_irq(&phba->hbalock); 1321 1322 return; 1323 1324lpfc_handle_latt_free_mbuf: 1325 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1326 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1327lpfc_handle_latt_free_mp: 1328 kfree(mp); 1329lpfc_handle_latt_free_pmb: 1330 mempool_free(pmb, phba->mbox_mem_pool); 1331lpfc_handle_latt_err_exit: 1332 /* Enable Link attention interrupts */ 1333 spin_lock_irq(&phba->hbalock); 1334 psli->sli_flag |= LPFC_PROCESS_LA; 1335 control = readl(phba->HCregaddr); 1336 control |= HC_LAINT_ENA; 1337 writel(control, phba->HCregaddr); 1338 readl(phba->HCregaddr); /* flush */ 1339 1340 /* Clear Link Attention in HA REG */ 1341 writel(HA_LATT, phba->HAregaddr); 1342 readl(phba->HAregaddr); /* flush */ 1343 spin_unlock_irq(&phba->hbalock); 1344 lpfc_linkdown(phba); 1345 phba->link_state = LPFC_HBA_ERROR; 1346 1347 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1348 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1349 1350 return; 1351} 1352 1353/** 1354 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1355 * @phba: pointer to lpfc hba data structure. 1356 * @vpd: pointer to the vital product data. 1357 * @len: length of the vital product data in bytes. 1358 * 1359 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1360 * an array of characters. In this routine, the ModelName, ProgramType, and 1361 * ModelDesc, etc. fields of the phba data structure will be populated. 1362 * 1363 * Return codes 1364 * 0 - pointer to the VPD passed in is NULL 1365 * 1 - success 1366 **/ 1367int 1368lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1369{ 1370 uint8_t lenlo, lenhi; 1371 int Length; 1372 int i, j; 1373 int finished = 0; 1374 int index = 0; 1375 1376 if (!vpd) 1377 return 0; 1378 1379 /* Vital Product */ 1380 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1381 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1382 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1383 (uint32_t) vpd[3]); 1384 while (!finished && (index < (len - 4))) { 1385 switch (vpd[index]) { 1386 case 0x82: 1387 case 0x91: 1388 index += 1; 1389 lenlo = vpd[index]; 1390 index += 1; 1391 lenhi = vpd[index]; 1392 index += 1; 1393 i = ((((unsigned short)lenhi) << 8) + lenlo); 1394 index += i; 1395 break; 1396 case 0x90: 1397 index += 1; 1398 lenlo = vpd[index]; 1399 index += 1; 1400 lenhi = vpd[index]; 1401 index += 1; 1402 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1403 if (Length > len - index) 1404 Length = len - index; 1405 while (Length > 0) { 1406 /* Look for Serial Number */ 1407 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1408 index += 2; 1409 i = vpd[index]; 1410 index += 1; 1411 j = 0; 1412 Length -= (3+i); 1413 while(i--) { 1414 phba->SerialNumber[j++] = vpd[index++]; 1415 if (j == 31) 1416 break; 1417 } 1418 phba->SerialNumber[j] = 0; 1419 continue; 1420 } 1421 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1422 phba->vpd_flag |= VPD_MODEL_DESC; 1423 index += 2; 1424 i = vpd[index]; 1425 index += 1; 1426 j = 0; 1427 Length -= (3+i); 1428 while(i--) { 1429 phba->ModelDesc[j++] = vpd[index++]; 1430 if (j == 255) 1431 break; 1432 } 1433 phba->ModelDesc[j] = 0; 1434 continue; 1435 } 1436 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1437 phba->vpd_flag |= VPD_MODEL_NAME; 1438 index += 2; 1439 i = vpd[index]; 1440 index += 1; 1441 j = 0; 1442 Length -= (3+i); 1443 while(i--) { 1444 phba->ModelName[j++] = vpd[index++]; 1445 if (j == 79) 1446 break; 1447 } 1448 phba->ModelName[j] = 0; 1449 continue; 1450 } 1451 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1452 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1453 index += 2; 1454 i = vpd[index]; 1455 index += 1; 1456 j = 0; 1457 Length -= (3+i); 1458 while(i--) { 1459 phba->ProgramType[j++] = vpd[index++]; 1460 if (j == 255) 1461 break; 1462 } 1463 phba->ProgramType[j] = 0; 1464 continue; 1465 } 1466 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1467 phba->vpd_flag |= VPD_PORT; 1468 index += 2; 1469 i = vpd[index]; 1470 index += 1; 1471 j = 0; 1472 Length -= (3+i); 1473 while(i--) { 1474 phba->Port[j++] = vpd[index++]; 1475 if (j == 19) 1476 break; 1477 } 1478 phba->Port[j] = 0; 1479 continue; 1480 } 1481 else { 1482 index += 2; 1483 i = vpd[index]; 1484 index += 1; 1485 index += i; 1486 Length -= (3 + i); 1487 } 1488 } 1489 finished = 0; 1490 break; 1491 case 0x78: 1492 finished = 1; 1493 break; 1494 default: 1495 index ++; 1496 break; 1497 } 1498 } 1499 1500 return(1); 1501} 1502 1503/** 1504 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1505 * @phba: pointer to lpfc hba data structure. 1506 * @mdp: pointer to the data structure to hold the derived model name. 1507 * @descp: pointer to the data structure to hold the derived description. 1508 * 1509 * This routine retrieves HBA's description based on its registered PCI device 1510 * ID. The @descp passed into this function points to an array of 256 chars. It 1511 * shall be returned with the model name, maximum speed, and the host bus type. 1512 * The @mdp passed into this function points to an array of 80 chars. When the 1513 * function returns, the @mdp will be filled with the model name. 1514 **/ 1515static void 1516lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1517{ 1518 lpfc_vpd_t *vp; 1519 uint16_t dev_id = phba->pcidev->device; 1520 int max_speed; 1521 int GE = 0; 1522 int oneConnect = 0; /* default is not a oneConnect */ 1523 struct { 1524 char * name; 1525 int max_speed; 1526 char * bus; 1527 } m = {"<Unknown>", 0, ""}; 1528 1529 if (mdp && mdp[0] != '\0' 1530 && descp && descp[0] != '\0') 1531 return; 1532 1533 if (phba->lmt & LMT_10Gb) 1534 max_speed = 10; 1535 else if (phba->lmt & LMT_8Gb) 1536 max_speed = 8; 1537 else if (phba->lmt & LMT_4Gb) 1538 max_speed = 4; 1539 else if (phba->lmt & LMT_2Gb) 1540 max_speed = 2; 1541 else 1542 max_speed = 1; 1543 1544 vp = &phba->vpd; 1545 1546 switch (dev_id) { 1547 case PCI_DEVICE_ID_FIREFLY: 1548 m = (typeof(m)){"LP6000", max_speed, "PCI"}; 1549 break; 1550 case PCI_DEVICE_ID_SUPERFLY: 1551 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1552 m = (typeof(m)){"LP7000", max_speed, "PCI"}; 1553 else 1554 m = (typeof(m)){"LP7000E", max_speed, "PCI"}; 1555 break; 1556 case PCI_DEVICE_ID_DRAGONFLY: 1557 m = (typeof(m)){"LP8000", max_speed, "PCI"}; 1558 break; 1559 case PCI_DEVICE_ID_CENTAUR: 1560 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1561 m = (typeof(m)){"LP9002", max_speed, "PCI"}; 1562 else 1563 m = (typeof(m)){"LP9000", max_speed, "PCI"}; 1564 break; 1565 case PCI_DEVICE_ID_RFLY: 1566 m = (typeof(m)){"LP952", max_speed, "PCI"}; 1567 break; 1568 case PCI_DEVICE_ID_PEGASUS: 1569 m = (typeof(m)){"LP9802", max_speed, "PCI-X"}; 1570 break; 1571 case PCI_DEVICE_ID_THOR: 1572 m = (typeof(m)){"LP10000", max_speed, "PCI-X"}; 1573 break; 1574 case PCI_DEVICE_ID_VIPER: 1575 m = (typeof(m)){"LPX1000", max_speed, "PCI-X"}; 1576 break; 1577 case PCI_DEVICE_ID_PFLY: 1578 m = (typeof(m)){"LP982", max_speed, "PCI-X"}; 1579 break; 1580 case PCI_DEVICE_ID_TFLY: 1581 m = (typeof(m)){"LP1050", max_speed, "PCI-X"}; 1582 break; 1583 case PCI_DEVICE_ID_HELIOS: 1584 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"}; 1585 break; 1586 case PCI_DEVICE_ID_HELIOS_SCSP: 1587 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"}; 1588 break; 1589 case PCI_DEVICE_ID_HELIOS_DCSP: 1590 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"}; 1591 break; 1592 case PCI_DEVICE_ID_NEPTUNE: 1593 m = (typeof(m)){"LPe1000", max_speed, "PCIe"}; 1594 break; 1595 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1596 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"}; 1597 break; 1598 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1599 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"}; 1600 break; 1601 case PCI_DEVICE_ID_BMID: 1602 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"}; 1603 break; 1604 case PCI_DEVICE_ID_BSMB: 1605 m = (typeof(m)){"LP111", max_speed, "PCI-X2"}; 1606 break; 1607 case PCI_DEVICE_ID_ZEPHYR: 1608 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1609 break; 1610 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1611 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1612 break; 1613 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1614 m = (typeof(m)){"LP2105", max_speed, "PCIe"}; 1615 GE = 1; 1616 break; 1617 case PCI_DEVICE_ID_ZMID: 1618 m = (typeof(m)){"LPe1150", max_speed, "PCIe"}; 1619 break; 1620 case PCI_DEVICE_ID_ZSMB: 1621 m = (typeof(m)){"LPe111", max_speed, "PCIe"}; 1622 break; 1623 case PCI_DEVICE_ID_LP101: 1624 m = (typeof(m)){"LP101", max_speed, "PCI-X"}; 1625 break; 1626 case PCI_DEVICE_ID_LP10000S: 1627 m = (typeof(m)){"LP10000-S", max_speed, "PCI"}; 1628 break; 1629 case PCI_DEVICE_ID_LP11000S: 1630 m = (typeof(m)){"LP11000-S", max_speed, 1631 "PCI-X2"}; 1632 break; 1633 case PCI_DEVICE_ID_LPE11000S: 1634 m = (typeof(m)){"LPe11000-S", max_speed, 1635 "PCIe"}; 1636 break; 1637 case PCI_DEVICE_ID_SAT: 1638 m = (typeof(m)){"LPe12000", max_speed, "PCIe"}; 1639 break; 1640 case PCI_DEVICE_ID_SAT_MID: 1641 m = (typeof(m)){"LPe1250", max_speed, "PCIe"}; 1642 break; 1643 case PCI_DEVICE_ID_SAT_SMB: 1644 m = (typeof(m)){"LPe121", max_speed, "PCIe"}; 1645 break; 1646 case PCI_DEVICE_ID_SAT_DCSP: 1647 m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"}; 1648 break; 1649 case PCI_DEVICE_ID_SAT_SCSP: 1650 m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"}; 1651 break; 1652 case PCI_DEVICE_ID_SAT_S: 1653 m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"}; 1654 break; 1655 case PCI_DEVICE_ID_HORNET: 1656 m = (typeof(m)){"LP21000", max_speed, "PCIe"}; 1657 GE = 1; 1658 break; 1659 case PCI_DEVICE_ID_PROTEUS_VF: 1660 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"}; 1661 break; 1662 case PCI_DEVICE_ID_PROTEUS_PF: 1663 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"}; 1664 break; 1665 case PCI_DEVICE_ID_PROTEUS_S: 1666 m = (typeof(m)) {"LPemv12002-S", max_speed, "PCIe IOV"}; 1667 break; 1668 case PCI_DEVICE_ID_TIGERSHARK: 1669 oneConnect = 1; 1670 m = (typeof(m)) {"OCe10100-F", max_speed, "PCIe"}; 1671 break; 1672 case PCI_DEVICE_ID_TS_BE3: 1673 oneConnect = 1; 1674 m = (typeof(m)) {"OCeXXXXX-F", max_speed, "PCIe"}; 1675 break; 1676 default: 1677 m = (typeof(m)){ NULL }; 1678 break; 1679 } 1680 1681 if (mdp && mdp[0] == '\0') 1682 snprintf(mdp, 79,"%s", m.name); 1683 /* oneConnect hba requires special processing, they are all initiators 1684 * and we put the port number on the end 1685 */ 1686 if (descp && descp[0] == '\0') { 1687 if (oneConnect) 1688 snprintf(descp, 255, 1689 "Emulex OneConnect %s, FCoE Initiator, Port %s", 1690 m.name, 1691 phba->Port); 1692 else 1693 snprintf(descp, 255, 1694 "Emulex %s %d%s %s %s", 1695 m.name, m.max_speed, 1696 (GE) ? "GE" : "Gb", 1697 m.bus, 1698 (GE) ? "FCoE Adapter" : 1699 "Fibre Channel Adapter"); 1700 } 1701} 1702 1703/** 1704 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 1705 * @phba: pointer to lpfc hba data structure. 1706 * @pring: pointer to a IOCB ring. 1707 * @cnt: the number of IOCBs to be posted to the IOCB ring. 1708 * 1709 * This routine posts a given number of IOCBs with the associated DMA buffer 1710 * descriptors specified by the cnt argument to the given IOCB ring. 1711 * 1712 * Return codes 1713 * The number of IOCBs NOT able to be posted to the IOCB ring. 1714 **/ 1715int 1716lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 1717{ 1718 IOCB_t *icmd; 1719 struct lpfc_iocbq *iocb; 1720 struct lpfc_dmabuf *mp1, *mp2; 1721 1722 cnt += pring->missbufcnt; 1723 1724 /* While there are buffers to post */ 1725 while (cnt > 0) { 1726 /* Allocate buffer for command iocb */ 1727 iocb = lpfc_sli_get_iocbq(phba); 1728 if (iocb == NULL) { 1729 pring->missbufcnt = cnt; 1730 return cnt; 1731 } 1732 icmd = &iocb->iocb; 1733 1734 /* 2 buffers can be posted per command */ 1735 /* Allocate buffer to post */ 1736 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1737 if (mp1) 1738 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 1739 if (!mp1 || !mp1->virt) { 1740 kfree(mp1); 1741 lpfc_sli_release_iocbq(phba, iocb); 1742 pring->missbufcnt = cnt; 1743 return cnt; 1744 } 1745 1746 INIT_LIST_HEAD(&mp1->list); 1747 /* Allocate buffer to post */ 1748 if (cnt > 1) { 1749 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1750 if (mp2) 1751 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1752 &mp2->phys); 1753 if (!mp2 || !mp2->virt) { 1754 kfree(mp2); 1755 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1756 kfree(mp1); 1757 lpfc_sli_release_iocbq(phba, iocb); 1758 pring->missbufcnt = cnt; 1759 return cnt; 1760 } 1761 1762 INIT_LIST_HEAD(&mp2->list); 1763 } else { 1764 mp2 = NULL; 1765 } 1766 1767 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1768 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1769 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1770 icmd->ulpBdeCount = 1; 1771 cnt--; 1772 if (mp2) { 1773 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1774 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1775 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1776 cnt--; 1777 icmd->ulpBdeCount = 2; 1778 } 1779 1780 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1781 icmd->ulpLe = 1; 1782 1783 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 1784 IOCB_ERROR) { 1785 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1786 kfree(mp1); 1787 cnt++; 1788 if (mp2) { 1789 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1790 kfree(mp2); 1791 cnt++; 1792 } 1793 lpfc_sli_release_iocbq(phba, iocb); 1794 pring->missbufcnt = cnt; 1795 return cnt; 1796 } 1797 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1798 if (mp2) 1799 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1800 } 1801 pring->missbufcnt = 0; 1802 return 0; 1803} 1804 1805/** 1806 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 1807 * @phba: pointer to lpfc hba data structure. 1808 * 1809 * This routine posts initial receive IOCB buffers to the ELS ring. The 1810 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 1811 * set to 64 IOCBs. 1812 * 1813 * Return codes 1814 * 0 - success (currently always success) 1815 **/ 1816static int 1817lpfc_post_rcv_buf(struct lpfc_hba *phba) 1818{ 1819 struct lpfc_sli *psli = &phba->sli; 1820 1821 /* Ring 0, ELS / CT buffers */ 1822 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 1823 /* Ring 2 - FCP no buffers needed */ 1824 1825 return 0; 1826} 1827 1828#define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 1829 1830/** 1831 * lpfc_sha_init - Set up initial array of hash table entries 1832 * @HashResultPointer: pointer to an array as hash table. 1833 * 1834 * This routine sets up the initial values to the array of hash table entries 1835 * for the LC HBAs. 1836 **/ 1837static void 1838lpfc_sha_init(uint32_t * HashResultPointer) 1839{ 1840 HashResultPointer[0] = 0x67452301; 1841 HashResultPointer[1] = 0xEFCDAB89; 1842 HashResultPointer[2] = 0x98BADCFE; 1843 HashResultPointer[3] = 0x10325476; 1844 HashResultPointer[4] = 0xC3D2E1F0; 1845} 1846 1847/** 1848 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 1849 * @HashResultPointer: pointer to an initial/result hash table. 1850 * @HashWorkingPointer: pointer to an working hash table. 1851 * 1852 * This routine iterates an initial hash table pointed by @HashResultPointer 1853 * with the values from the working hash table pointeed by @HashWorkingPointer. 1854 * The results are putting back to the initial hash table, returned through 1855 * the @HashResultPointer as the result hash table. 1856 **/ 1857static void 1858lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 1859{ 1860 int t; 1861 uint32_t TEMP; 1862 uint32_t A, B, C, D, E; 1863 t = 16; 1864 do { 1865 HashWorkingPointer[t] = 1866 S(1, 1867 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 1868 8] ^ 1869 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 1870 } while (++t <= 79); 1871 t = 0; 1872 A = HashResultPointer[0]; 1873 B = HashResultPointer[1]; 1874 C = HashResultPointer[2]; 1875 D = HashResultPointer[3]; 1876 E = HashResultPointer[4]; 1877 1878 do { 1879 if (t < 20) { 1880 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 1881 } else if (t < 40) { 1882 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 1883 } else if (t < 60) { 1884 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 1885 } else { 1886 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 1887 } 1888 TEMP += S(5, A) + E + HashWorkingPointer[t]; 1889 E = D; 1890 D = C; 1891 C = S(30, B); 1892 B = A; 1893 A = TEMP; 1894 } while (++t <= 79); 1895 1896 HashResultPointer[0] += A; 1897 HashResultPointer[1] += B; 1898 HashResultPointer[2] += C; 1899 HashResultPointer[3] += D; 1900 HashResultPointer[4] += E; 1901 1902} 1903 1904/** 1905 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 1906 * @RandomChallenge: pointer to the entry of host challenge random number array. 1907 * @HashWorking: pointer to the entry of the working hash array. 1908 * 1909 * This routine calculates the working hash array referred by @HashWorking 1910 * from the challenge random numbers associated with the host, referred by 1911 * @RandomChallenge. The result is put into the entry of the working hash 1912 * array and returned by reference through @HashWorking. 1913 **/ 1914static void 1915lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 1916{ 1917 *HashWorking = (*RandomChallenge ^ *HashWorking); 1918} 1919 1920/** 1921 * lpfc_hba_init - Perform special handling for LC HBA initialization 1922 * @phba: pointer to lpfc hba data structure. 1923 * @hbainit: pointer to an array of unsigned 32-bit integers. 1924 * 1925 * This routine performs the special handling for LC HBA initialization. 1926 **/ 1927void 1928lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 1929{ 1930 int t; 1931 uint32_t *HashWorking; 1932 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 1933 1934 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 1935 if (!HashWorking) 1936 return; 1937 1938 HashWorking[0] = HashWorking[78] = *pwwnn++; 1939 HashWorking[1] = HashWorking[79] = *pwwnn; 1940 1941 for (t = 0; t < 7; t++) 1942 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 1943 1944 lpfc_sha_init(hbainit); 1945 lpfc_sha_iterate(hbainit, HashWorking); 1946 kfree(HashWorking); 1947} 1948 1949/** 1950 * lpfc_cleanup - Performs vport cleanups before deleting a vport 1951 * @vport: pointer to a virtual N_Port data structure. 1952 * 1953 * This routine performs the necessary cleanups before deleting the @vport. 1954 * It invokes the discovery state machine to perform necessary state 1955 * transitions and to release the ndlps associated with the @vport. Note, 1956 * the physical port is treated as @vport 0. 1957 **/ 1958void 1959lpfc_cleanup(struct lpfc_vport *vport) 1960{ 1961 struct lpfc_hba *phba = vport->phba; 1962 struct lpfc_nodelist *ndlp, *next_ndlp; 1963 int i = 0; 1964 1965 if (phba->link_state > LPFC_LINK_DOWN) 1966 lpfc_port_link_failure(vport); 1967 1968 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 1969 if (!NLP_CHK_NODE_ACT(ndlp)) { 1970 ndlp = lpfc_enable_node(vport, ndlp, 1971 NLP_STE_UNUSED_NODE); 1972 if (!ndlp) 1973 continue; 1974 spin_lock_irq(&phba->ndlp_lock); 1975 NLP_SET_FREE_REQ(ndlp); 1976 spin_unlock_irq(&phba->ndlp_lock); 1977 /* Trigger the release of the ndlp memory */ 1978 lpfc_nlp_put(ndlp); 1979 continue; 1980 } 1981 spin_lock_irq(&phba->ndlp_lock); 1982 if (NLP_CHK_FREE_REQ(ndlp)) { 1983 /* The ndlp should not be in memory free mode already */ 1984 spin_unlock_irq(&phba->ndlp_lock); 1985 continue; 1986 } else 1987 /* Indicate request for freeing ndlp memory */ 1988 NLP_SET_FREE_REQ(ndlp); 1989 spin_unlock_irq(&phba->ndlp_lock); 1990 1991 if (vport->port_type != LPFC_PHYSICAL_PORT && 1992 ndlp->nlp_DID == Fabric_DID) { 1993 /* Just free up ndlp with Fabric_DID for vports */ 1994 lpfc_nlp_put(ndlp); 1995 continue; 1996 } 1997 1998 if (ndlp->nlp_type & NLP_FABRIC) 1999 lpfc_disc_state_machine(vport, ndlp, NULL, 2000 NLP_EVT_DEVICE_RECOVERY); 2001 2002 lpfc_disc_state_machine(vport, ndlp, NULL, 2003 NLP_EVT_DEVICE_RM); 2004 2005 } 2006 2007 /* At this point, ALL ndlp's should be gone 2008 * because of the previous NLP_EVT_DEVICE_RM. 2009 * Lets wait for this to happen, if needed. 2010 */ 2011 while (!list_empty(&vport->fc_nodes)) { 2012 if (i++ > 3000) { 2013 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2014 "0233 Nodelist not empty\n"); 2015 list_for_each_entry_safe(ndlp, next_ndlp, 2016 &vport->fc_nodes, nlp_listp) { 2017 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2018 LOG_NODE, 2019 "0282 did:x%x ndlp:x%p " 2020 "usgmap:x%x refcnt:%d\n", 2021 ndlp->nlp_DID, (void *)ndlp, 2022 ndlp->nlp_usg_map, 2023 atomic_read( 2024 &ndlp->kref.refcount)); 2025 } 2026 break; 2027 } 2028 2029 /* Wait for any activity on ndlps to settle */ 2030 msleep(10); 2031 } 2032} 2033 2034/** 2035 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2036 * @vport: pointer to a virtual N_Port data structure. 2037 * 2038 * This routine stops all the timers associated with a @vport. This function 2039 * is invoked before disabling or deleting a @vport. Note that the physical 2040 * port is treated as @vport 0. 2041 **/ 2042void 2043lpfc_stop_vport_timers(struct lpfc_vport *vport) 2044{ 2045 del_timer_sync(&vport->els_tmofunc); 2046 del_timer_sync(&vport->fc_fdmitmo); 2047 lpfc_can_disctmo(vport); 2048 return; 2049} 2050 2051/** 2052 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2053 * @phba: pointer to lpfc hba data structure. 2054 * 2055 * This routine stops all the timers associated with a HBA. This function is 2056 * invoked before either putting a HBA offline or unloading the driver. 2057 **/ 2058void 2059lpfc_stop_hba_timers(struct lpfc_hba *phba) 2060{ 2061 lpfc_stop_vport_timers(phba->pport); 2062 del_timer_sync(&phba->sli.mbox_tmo); 2063 del_timer_sync(&phba->fabric_block_timer); 2064 del_timer_sync(&phba->eratt_poll); 2065 del_timer_sync(&phba->hb_tmofunc); 2066 phba->hb_outstanding = 0; 2067 2068 switch (phba->pci_dev_grp) { 2069 case LPFC_PCI_DEV_LP: 2070 /* Stop any LightPulse device specific driver timers */ 2071 del_timer_sync(&phba->fcp_poll_timer); 2072 break; 2073 case LPFC_PCI_DEV_OC: 2074 /* Stop any OneConnect device sepcific driver timers */ 2075 break; 2076 default: 2077 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2078 "0297 Invalid device group (x%x)\n", 2079 phba->pci_dev_grp); 2080 break; 2081 } 2082 return; 2083} 2084 2085/** 2086 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2087 * @phba: pointer to lpfc hba data structure. 2088 * 2089 * This routine marks a HBA's management interface as blocked. Once the HBA's 2090 * management interface is marked as blocked, all the user space access to 2091 * the HBA, whether they are from sysfs interface or libdfc interface will 2092 * all be blocked. The HBA is set to block the management interface when the 2093 * driver prepares the HBA interface for online or offline. 2094 **/ 2095static void 2096lpfc_block_mgmt_io(struct lpfc_hba * phba) 2097{ 2098 unsigned long iflag; 2099 2100 spin_lock_irqsave(&phba->hbalock, iflag); 2101 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2102 spin_unlock_irqrestore(&phba->hbalock, iflag); 2103} 2104 2105/** 2106 * lpfc_online - Initialize and bring a HBA online 2107 * @phba: pointer to lpfc hba data structure. 2108 * 2109 * This routine initializes the HBA and brings a HBA online. During this 2110 * process, the management interface is blocked to prevent user space access 2111 * to the HBA interfering with the driver initialization. 2112 * 2113 * Return codes 2114 * 0 - successful 2115 * 1 - failed 2116 **/ 2117int 2118lpfc_online(struct lpfc_hba *phba) 2119{ 2120 struct lpfc_vport *vport; 2121 struct lpfc_vport **vports; 2122 int i; 2123 2124 if (!phba) 2125 return 0; 2126 vport = phba->pport; 2127 2128 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2129 return 0; 2130 2131 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2132 "0458 Bring Adapter online\n"); 2133 2134 lpfc_block_mgmt_io(phba); 2135 2136 if (!lpfc_sli_queue_setup(phba)) { 2137 lpfc_unblock_mgmt_io(phba); 2138 return 1; 2139 } 2140 2141 if (phba->sli_rev == LPFC_SLI_REV4) { 2142 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2143 lpfc_unblock_mgmt_io(phba); 2144 return 1; 2145 } 2146 } else { 2147 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2148 lpfc_unblock_mgmt_io(phba); 2149 return 1; 2150 } 2151 } 2152 2153 vports = lpfc_create_vport_work_array(phba); 2154 if (vports != NULL) 2155 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2156 struct Scsi_Host *shost; 2157 shost = lpfc_shost_from_vport(vports[i]); 2158 spin_lock_irq(shost->host_lock); 2159 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2160 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2161 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2162 if (phba->sli_rev == LPFC_SLI_REV4) 2163 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2164 spin_unlock_irq(shost->host_lock); 2165 } 2166 lpfc_destroy_vport_work_array(phba, vports); 2167 2168 lpfc_unblock_mgmt_io(phba); 2169 return 0; 2170} 2171 2172/** 2173 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2174 * @phba: pointer to lpfc hba data structure. 2175 * 2176 * This routine marks a HBA's management interface as not blocked. Once the 2177 * HBA's management interface is marked as not blocked, all the user space 2178 * access to the HBA, whether they are from sysfs interface or libdfc 2179 * interface will be allowed. The HBA is set to block the management interface 2180 * when the driver prepares the HBA interface for online or offline and then 2181 * set to unblock the management interface afterwards. 2182 **/ 2183void 2184lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2185{ 2186 unsigned long iflag; 2187 2188 spin_lock_irqsave(&phba->hbalock, iflag); 2189 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2190 spin_unlock_irqrestore(&phba->hbalock, iflag); 2191} 2192 2193/** 2194 * lpfc_offline_prep - Prepare a HBA to be brought offline 2195 * @phba: pointer to lpfc hba data structure. 2196 * 2197 * This routine is invoked to prepare a HBA to be brought offline. It performs 2198 * unregistration login to all the nodes on all vports and flushes the mailbox 2199 * queue to make it ready to be brought offline. 2200 **/ 2201void 2202lpfc_offline_prep(struct lpfc_hba * phba) 2203{ 2204 struct lpfc_vport *vport = phba->pport; 2205 struct lpfc_nodelist *ndlp, *next_ndlp; 2206 struct lpfc_vport **vports; 2207 int i; 2208 2209 if (vport->fc_flag & FC_OFFLINE_MODE) 2210 return; 2211 2212 lpfc_block_mgmt_io(phba); 2213 2214 lpfc_linkdown(phba); 2215 2216 /* Issue an unreg_login to all nodes on all vports */ 2217 vports = lpfc_create_vport_work_array(phba); 2218 if (vports != NULL) { 2219 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2220 struct Scsi_Host *shost; 2221 2222 if (vports[i]->load_flag & FC_UNLOADING) 2223 continue; 2224 vports[i]->vfi_state &= ~LPFC_VFI_REGISTERED; 2225 shost = lpfc_shost_from_vport(vports[i]); 2226 list_for_each_entry_safe(ndlp, next_ndlp, 2227 &vports[i]->fc_nodes, 2228 nlp_listp) { 2229 if (!NLP_CHK_NODE_ACT(ndlp)) 2230 continue; 2231 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2232 continue; 2233 if (ndlp->nlp_type & NLP_FABRIC) { 2234 lpfc_disc_state_machine(vports[i], ndlp, 2235 NULL, NLP_EVT_DEVICE_RECOVERY); 2236 lpfc_disc_state_machine(vports[i], ndlp, 2237 NULL, NLP_EVT_DEVICE_RM); 2238 } 2239 spin_lock_irq(shost->host_lock); 2240 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2241 spin_unlock_irq(shost->host_lock); 2242 lpfc_unreg_rpi(vports[i], ndlp); 2243 } 2244 } 2245 } 2246 lpfc_destroy_vport_work_array(phba, vports); 2247 2248 lpfc_sli_mbox_sys_shutdown(phba); 2249} 2250 2251/** 2252 * lpfc_offline - Bring a HBA offline 2253 * @phba: pointer to lpfc hba data structure. 2254 * 2255 * This routine actually brings a HBA offline. It stops all the timers 2256 * associated with the HBA, brings down the SLI layer, and eventually 2257 * marks the HBA as in offline state for the upper layer protocol. 2258 **/ 2259void 2260lpfc_offline(struct lpfc_hba *phba) 2261{ 2262 struct Scsi_Host *shost; 2263 struct lpfc_vport **vports; 2264 int i; 2265 2266 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2267 return; 2268 2269 /* stop port and all timers associated with this hba */ 2270 lpfc_stop_port(phba); 2271 vports = lpfc_create_vport_work_array(phba); 2272 if (vports != NULL) 2273 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2274 lpfc_stop_vport_timers(vports[i]); 2275 lpfc_destroy_vport_work_array(phba, vports); 2276 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2277 "0460 Bring Adapter offline\n"); 2278 /* Bring down the SLI Layer and cleanup. The HBA is offline 2279 now. */ 2280 lpfc_sli_hba_down(phba); 2281 spin_lock_irq(&phba->hbalock); 2282 phba->work_ha = 0; 2283 spin_unlock_irq(&phba->hbalock); 2284 vports = lpfc_create_vport_work_array(phba); 2285 if (vports != NULL) 2286 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2287 shost = lpfc_shost_from_vport(vports[i]); 2288 spin_lock_irq(shost->host_lock); 2289 vports[i]->work_port_events = 0; 2290 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2291 spin_unlock_irq(shost->host_lock); 2292 } 2293 lpfc_destroy_vport_work_array(phba, vports); 2294} 2295 2296/** 2297 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2298 * @phba: pointer to lpfc hba data structure. 2299 * 2300 * This routine is to free all the SCSI buffers and IOCBs from the driver 2301 * list back to kernel. It is called from lpfc_pci_remove_one to free 2302 * the internal resources before the device is removed from the system. 2303 * 2304 * Return codes 2305 * 0 - successful (for now, it always returns 0) 2306 **/ 2307static int 2308lpfc_scsi_free(struct lpfc_hba *phba) 2309{ 2310 struct lpfc_scsi_buf *sb, *sb_next; 2311 struct lpfc_iocbq *io, *io_next; 2312 2313 spin_lock_irq(&phba->hbalock); 2314 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2315 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2316 list_del(&sb->list); 2317 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2318 sb->dma_handle); 2319 kfree(sb); 2320 phba->total_scsi_bufs--; 2321 } 2322 2323 /* Release all the lpfc_iocbq entries maintained by this host. */ 2324 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2325 list_del(&io->list); 2326 kfree(io); 2327 phba->total_iocbq_bufs--; 2328 } 2329 2330 spin_unlock_irq(&phba->hbalock); 2331 2332 return 0; 2333} 2334 2335/** 2336 * lpfc_create_port - Create an FC port 2337 * @phba: pointer to lpfc hba data structure. 2338 * @instance: a unique integer ID to this FC port. 2339 * @dev: pointer to the device data structure. 2340 * 2341 * This routine creates a FC port for the upper layer protocol. The FC port 2342 * can be created on top of either a physical port or a virtual port provided 2343 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2344 * and associates the FC port created before adding the shost into the SCSI 2345 * layer. 2346 * 2347 * Return codes 2348 * @vport - pointer to the virtual N_Port data structure. 2349 * NULL - port create failed. 2350 **/ 2351struct lpfc_vport * 2352lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2353{ 2354 struct lpfc_vport *vport; 2355 struct Scsi_Host *shost; 2356 int error = 0; 2357 2358 if (dev != &phba->pcidev->dev) 2359 shost = scsi_host_alloc(&lpfc_vport_template, 2360 sizeof(struct lpfc_vport)); 2361 else 2362 shost = scsi_host_alloc(&lpfc_template, 2363 sizeof(struct lpfc_vport)); 2364 if (!shost) 2365 goto out; 2366 2367 vport = (struct lpfc_vport *) shost->hostdata; 2368 vport->phba = phba; 2369 vport->load_flag |= FC_LOADING; 2370 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2371 vport->fc_rscn_flush = 0; 2372 2373 lpfc_get_vport_cfgparam(vport); 2374 shost->unique_id = instance; 2375 shost->max_id = LPFC_MAX_TARGET; 2376 shost->max_lun = vport->cfg_max_luns; 2377 shost->this_id = -1; 2378 shost->max_cmd_len = 16; 2379 if (phba->sli_rev == LPFC_SLI_REV4) { 2380 shost->dma_boundary = LPFC_SLI4_MAX_SEGMENT_SIZE; 2381 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2382 } 2383 2384 /* 2385 * Set initial can_queue value since 0 is no longer supported and 2386 * scsi_add_host will fail. This will be adjusted later based on the 2387 * max xri value determined in hba setup. 2388 */ 2389 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2390 if (dev != &phba->pcidev->dev) { 2391 shost->transportt = lpfc_vport_transport_template; 2392 vport->port_type = LPFC_NPIV_PORT; 2393 } else { 2394 shost->transportt = lpfc_transport_template; 2395 vport->port_type = LPFC_PHYSICAL_PORT; 2396 } 2397 2398 /* Initialize all internally managed lists. */ 2399 INIT_LIST_HEAD(&vport->fc_nodes); 2400 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2401 spin_lock_init(&vport->work_port_lock); 2402 2403 init_timer(&vport->fc_disctmo); 2404 vport->fc_disctmo.function = lpfc_disc_timeout; 2405 vport->fc_disctmo.data = (unsigned long)vport; 2406 2407 init_timer(&vport->fc_fdmitmo); 2408 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2409 vport->fc_fdmitmo.data = (unsigned long)vport; 2410 2411 init_timer(&vport->els_tmofunc); 2412 vport->els_tmofunc.function = lpfc_els_timeout; 2413 vport->els_tmofunc.data = (unsigned long)vport; 2414 2415 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 2416 if (error) 2417 goto out_put_shost; 2418 2419 spin_lock_irq(&phba->hbalock); 2420 list_add_tail(&vport->listentry, &phba->port_list); 2421 spin_unlock_irq(&phba->hbalock); 2422 return vport; 2423 2424out_put_shost: 2425 scsi_host_put(shost); 2426out: 2427 return NULL; 2428} 2429 2430/** 2431 * destroy_port - destroy an FC port 2432 * @vport: pointer to an lpfc virtual N_Port data structure. 2433 * 2434 * This routine destroys a FC port from the upper layer protocol. All the 2435 * resources associated with the port are released. 2436 **/ 2437void 2438destroy_port(struct lpfc_vport *vport) 2439{ 2440 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2441 struct lpfc_hba *phba = vport->phba; 2442 2443 lpfc_debugfs_terminate(vport); 2444 fc_remove_host(shost); 2445 scsi_remove_host(shost); 2446 2447 spin_lock_irq(&phba->hbalock); 2448 list_del_init(&vport->listentry); 2449 spin_unlock_irq(&phba->hbalock); 2450 2451 lpfc_cleanup(vport); 2452 return; 2453} 2454 2455/** 2456 * lpfc_get_instance - Get a unique integer ID 2457 * 2458 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2459 * uses the kernel idr facility to perform the task. 2460 * 2461 * Return codes: 2462 * instance - a unique integer ID allocated as the new instance. 2463 * -1 - lpfc get instance failed. 2464 **/ 2465int 2466lpfc_get_instance(void) 2467{ 2468 int instance = 0; 2469 2470 /* Assign an unused number */ 2471 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2472 return -1; 2473 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2474 return -1; 2475 return instance; 2476} 2477 2478/** 2479 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2480 * @shost: pointer to SCSI host data structure. 2481 * @time: elapsed time of the scan in jiffies. 2482 * 2483 * This routine is called by the SCSI layer with a SCSI host to determine 2484 * whether the scan host is finished. 2485 * 2486 * Note: there is no scan_start function as adapter initialization will have 2487 * asynchronously kicked off the link initialization. 2488 * 2489 * Return codes 2490 * 0 - SCSI host scan is not over yet. 2491 * 1 - SCSI host scan is over. 2492 **/ 2493int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2494{ 2495 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2496 struct lpfc_hba *phba = vport->phba; 2497 int stat = 0; 2498 2499 spin_lock_irq(shost->host_lock); 2500 2501 if (vport->load_flag & FC_UNLOADING) { 2502 stat = 1; 2503 goto finished; 2504 } 2505 if (time >= 30 * HZ) { 2506 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2507 "0461 Scanning longer than 30 " 2508 "seconds. Continuing initialization\n"); 2509 stat = 1; 2510 goto finished; 2511 } 2512 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2513 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2514 "0465 Link down longer than 15 " 2515 "seconds. Continuing initialization\n"); 2516 stat = 1; 2517 goto finished; 2518 } 2519 2520 if (vport->port_state != LPFC_VPORT_READY) 2521 goto finished; 2522 if (vport->num_disc_nodes || vport->fc_prli_sent) 2523 goto finished; 2524 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2525 goto finished; 2526 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2527 goto finished; 2528 2529 stat = 1; 2530 2531finished: 2532 spin_unlock_irq(shost->host_lock); 2533 return stat; 2534} 2535 2536/** 2537 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 2538 * @shost: pointer to SCSI host data structure. 2539 * 2540 * This routine initializes a given SCSI host attributes on a FC port. The 2541 * SCSI host can be either on top of a physical port or a virtual port. 2542 **/ 2543void lpfc_host_attrib_init(struct Scsi_Host *shost) 2544{ 2545 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2546 struct lpfc_hba *phba = vport->phba; 2547 /* 2548 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2549 */ 2550 2551 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2552 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2553 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2554 2555 memset(fc_host_supported_fc4s(shost), 0, 2556 sizeof(fc_host_supported_fc4s(shost))); 2557 fc_host_supported_fc4s(shost)[2] = 1; 2558 fc_host_supported_fc4s(shost)[7] = 1; 2559 2560 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2561 sizeof fc_host_symbolic_name(shost)); 2562 2563 fc_host_supported_speeds(shost) = 0; 2564 if (phba->lmt & LMT_10Gb) 2565 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2566 if (phba->lmt & LMT_8Gb) 2567 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2568 if (phba->lmt & LMT_4Gb) 2569 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2570 if (phba->lmt & LMT_2Gb) 2571 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2572 if (phba->lmt & LMT_1Gb) 2573 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2574 2575 fc_host_maxframe_size(shost) = 2576 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2577 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2578 2579 /* This value is also unchanging */ 2580 memset(fc_host_active_fc4s(shost), 0, 2581 sizeof(fc_host_active_fc4s(shost))); 2582 fc_host_active_fc4s(shost)[2] = 1; 2583 fc_host_active_fc4s(shost)[7] = 1; 2584 2585 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2586 spin_lock_irq(shost->host_lock); 2587 vport->load_flag &= ~FC_LOADING; 2588 spin_unlock_irq(shost->host_lock); 2589} 2590 2591/** 2592 * lpfc_stop_port_s3 - Stop SLI3 device port 2593 * @phba: pointer to lpfc hba data structure. 2594 * 2595 * This routine is invoked to stop an SLI3 device port, it stops the device 2596 * from generating interrupts and stops the device driver's timers for the 2597 * device. 2598 **/ 2599static void 2600lpfc_stop_port_s3(struct lpfc_hba *phba) 2601{ 2602 /* Clear all interrupt enable conditions */ 2603 writel(0, phba->HCregaddr); 2604 readl(phba->HCregaddr); /* flush */ 2605 /* Clear all pending interrupts */ 2606 writel(0xffffffff, phba->HAregaddr); 2607 readl(phba->HAregaddr); /* flush */ 2608 2609 /* Reset some HBA SLI setup states */ 2610 lpfc_stop_hba_timers(phba); 2611 phba->pport->work_port_events = 0; 2612} 2613 2614/** 2615 * lpfc_stop_port_s4 - Stop SLI4 device port 2616 * @phba: pointer to lpfc hba data structure. 2617 * 2618 * This routine is invoked to stop an SLI4 device port, it stops the device 2619 * from generating interrupts and stops the device driver's timers for the 2620 * device. 2621 **/ 2622static void 2623lpfc_stop_port_s4(struct lpfc_hba *phba) 2624{ 2625 /* Reset some HBA SLI4 setup states */ 2626 lpfc_stop_hba_timers(phba); 2627 phba->pport->work_port_events = 0; 2628 phba->sli4_hba.intr_enable = 0; 2629 /* Hard clear it for now, shall have more graceful way to wait later */ 2630 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 2631} 2632 2633/** 2634 * lpfc_stop_port - Wrapper function for stopping hba port 2635 * @phba: Pointer to HBA context object. 2636 * 2637 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 2638 * the API jump table function pointer from the lpfc_hba struct. 2639 **/ 2640void 2641lpfc_stop_port(struct lpfc_hba *phba) 2642{ 2643 phba->lpfc_stop_port(phba); 2644} 2645 2646/** 2647 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port. 2648 * @phba: pointer to lpfc hba data structure. 2649 * 2650 * This routine is invoked to remove the driver default fcf record from 2651 * the port. This routine currently acts on FCF Index 0. 2652 * 2653 **/ 2654void 2655lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba) 2656{ 2657 int rc = 0; 2658 LPFC_MBOXQ_t *mboxq; 2659 struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record; 2660 uint32_t mbox_tmo, req_len; 2661 uint32_t shdr_status, shdr_add_status; 2662 2663 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2664 if (!mboxq) { 2665 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2666 "2020 Failed to allocate mbox for ADD_FCF cmd\n"); 2667 return; 2668 } 2669 2670 req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) - 2671 sizeof(struct lpfc_sli4_cfg_mhdr); 2672 rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, 2673 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF, 2674 req_len, LPFC_SLI4_MBX_EMBED); 2675 /* 2676 * In phase 1, there is a single FCF index, 0. In phase2, the driver 2677 * supports multiple FCF indices. 2678 */ 2679 del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry; 2680 bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1); 2681 bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record, 2682 phba->fcf.fcf_indx); 2683 2684 if (!phba->sli4_hba.intr_enable) 2685 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 2686 else { 2687 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 2688 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 2689 } 2690 /* The IOCTL status is embedded in the mailbox subheader. */ 2691 shdr_status = bf_get(lpfc_mbox_hdr_status, 2692 &del_fcf_record->header.cfg_shdr.response); 2693 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 2694 &del_fcf_record->header.cfg_shdr.response); 2695 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 2696 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2697 "2516 DEL FCF of default FCF Index failed " 2698 "mbx status x%x, status x%x add_status x%x\n", 2699 rc, shdr_status, shdr_add_status); 2700 } 2701 if (rc != MBX_TIMEOUT) 2702 mempool_free(mboxq, phba->mbox_mem_pool); 2703} 2704 2705/** 2706 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support 2707 * @phba: pointer to lpfc hba data structure. 2708 * 2709 * This function uses the QUERY_FW_CFG mailbox command to determine if the 2710 * firmware loaded supports FCoE. A return of zero indicates that the mailbox 2711 * was successful and the firmware supports FCoE. Any other return indicates 2712 * a error. It is assumed that this function will be called before interrupts 2713 * are enabled. 2714 **/ 2715static int 2716lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba) 2717{ 2718 int rc = 0; 2719 LPFC_MBOXQ_t *mboxq; 2720 struct lpfc_mbx_query_fw_cfg *query_fw_cfg; 2721 uint32_t length; 2722 uint32_t shdr_status, shdr_add_status; 2723 2724 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2725 if (!mboxq) { 2726 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2727 "2621 Failed to allocate mbox for " 2728 "query firmware config cmd\n"); 2729 return -ENOMEM; 2730 } 2731 query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg; 2732 length = (sizeof(struct lpfc_mbx_query_fw_cfg) - 2733 sizeof(struct lpfc_sli4_cfg_mhdr)); 2734 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 2735 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 2736 length, LPFC_SLI4_MBX_EMBED); 2737 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 2738 /* The IOCTL status is embedded in the mailbox subheader. */ 2739 shdr_status = bf_get(lpfc_mbox_hdr_status, 2740 &query_fw_cfg->header.cfg_shdr.response); 2741 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 2742 &query_fw_cfg->header.cfg_shdr.response); 2743 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 2744 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2745 "2622 Query Firmware Config failed " 2746 "mbx status x%x, status x%x add_status x%x\n", 2747 rc, shdr_status, shdr_add_status); 2748 return -EINVAL; 2749 } 2750 if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) { 2751 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2752 "2623 FCoE Function not supported by firmware. " 2753 "Function mode = %08x\n", 2754 query_fw_cfg->function_mode); 2755 return -EINVAL; 2756 } 2757 if (rc != MBX_TIMEOUT) 2758 mempool_free(mboxq, phba->mbox_mem_pool); 2759 return 0; 2760} 2761 2762/** 2763 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 2764 * @phba: pointer to lpfc hba data structure. 2765 * @acqe_link: pointer to the async link completion queue entry. 2766 * 2767 * This routine is to parse the SLI4 link-attention link fault code and 2768 * translate it into the base driver's read link attention mailbox command 2769 * status. 2770 * 2771 * Return: Link-attention status in terms of base driver's coding. 2772 **/ 2773static uint16_t 2774lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 2775 struct lpfc_acqe_link *acqe_link) 2776{ 2777 uint16_t latt_fault; 2778 2779 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 2780 case LPFC_ASYNC_LINK_FAULT_NONE: 2781 case LPFC_ASYNC_LINK_FAULT_LOCAL: 2782 case LPFC_ASYNC_LINK_FAULT_REMOTE: 2783 latt_fault = 0; 2784 break; 2785 default: 2786 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2787 "0398 Invalid link fault code: x%x\n", 2788 bf_get(lpfc_acqe_link_fault, acqe_link)); 2789 latt_fault = MBXERR_ERROR; 2790 break; 2791 } 2792 return latt_fault; 2793} 2794 2795/** 2796 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 2797 * @phba: pointer to lpfc hba data structure. 2798 * @acqe_link: pointer to the async link completion queue entry. 2799 * 2800 * This routine is to parse the SLI4 link attention type and translate it 2801 * into the base driver's link attention type coding. 2802 * 2803 * Return: Link attention type in terms of base driver's coding. 2804 **/ 2805static uint8_t 2806lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 2807 struct lpfc_acqe_link *acqe_link) 2808{ 2809 uint8_t att_type; 2810 2811 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 2812 case LPFC_ASYNC_LINK_STATUS_DOWN: 2813 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 2814 att_type = AT_LINK_DOWN; 2815 break; 2816 case LPFC_ASYNC_LINK_STATUS_UP: 2817 /* Ignore physical link up events - wait for logical link up */ 2818 att_type = AT_RESERVED; 2819 break; 2820 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 2821 att_type = AT_LINK_UP; 2822 break; 2823 default: 2824 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2825 "0399 Invalid link attention type: x%x\n", 2826 bf_get(lpfc_acqe_link_status, acqe_link)); 2827 att_type = AT_RESERVED; 2828 break; 2829 } 2830 return att_type; 2831} 2832 2833/** 2834 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 2835 * @phba: pointer to lpfc hba data structure. 2836 * @acqe_link: pointer to the async link completion queue entry. 2837 * 2838 * This routine is to parse the SLI4 link-attention link speed and translate 2839 * it into the base driver's link-attention link speed coding. 2840 * 2841 * Return: Link-attention link speed in terms of base driver's coding. 2842 **/ 2843static uint8_t 2844lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 2845 struct lpfc_acqe_link *acqe_link) 2846{ 2847 uint8_t link_speed; 2848 2849 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 2850 case LPFC_ASYNC_LINK_SPEED_ZERO: 2851 link_speed = LA_UNKNW_LINK; 2852 break; 2853 case LPFC_ASYNC_LINK_SPEED_10MBPS: 2854 link_speed = LA_UNKNW_LINK; 2855 break; 2856 case LPFC_ASYNC_LINK_SPEED_100MBPS: 2857 link_speed = LA_UNKNW_LINK; 2858 break; 2859 case LPFC_ASYNC_LINK_SPEED_1GBPS: 2860 link_speed = LA_1GHZ_LINK; 2861 break; 2862 case LPFC_ASYNC_LINK_SPEED_10GBPS: 2863 link_speed = LA_10GHZ_LINK; 2864 break; 2865 default: 2866 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2867 "0483 Invalid link-attention link speed: x%x\n", 2868 bf_get(lpfc_acqe_link_speed, acqe_link)); 2869 link_speed = LA_UNKNW_LINK; 2870 break; 2871 } 2872 return link_speed; 2873} 2874 2875/** 2876 * lpfc_sli4_async_link_evt - Process the asynchronous link event 2877 * @phba: pointer to lpfc hba data structure. 2878 * @acqe_link: pointer to the async link completion queue entry. 2879 * 2880 * This routine is to handle the SLI4 asynchronous link event. 2881 **/ 2882static void 2883lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 2884 struct lpfc_acqe_link *acqe_link) 2885{ 2886 struct lpfc_dmabuf *mp; 2887 LPFC_MBOXQ_t *pmb; 2888 MAILBOX_t *mb; 2889 READ_LA_VAR *la; 2890 uint8_t att_type; 2891 2892 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 2893 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP) 2894 return; 2895 phba->fcoe_eventtag = acqe_link->event_tag; 2896 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2897 if (!pmb) { 2898 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2899 "0395 The mboxq allocation failed\n"); 2900 return; 2901 } 2902 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 2903 if (!mp) { 2904 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2905 "0396 The lpfc_dmabuf allocation failed\n"); 2906 goto out_free_pmb; 2907 } 2908 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 2909 if (!mp->virt) { 2910 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2911 "0397 The mbuf allocation failed\n"); 2912 goto out_free_dmabuf; 2913 } 2914 2915 /* Cleanup any outstanding ELS commands */ 2916 lpfc_els_flush_all_cmd(phba); 2917 2918 /* Block ELS IOCBs until we have done process link event */ 2919 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 2920 2921 /* Update link event statistics */ 2922 phba->sli.slistat.link_event++; 2923 2924 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */ 2925 lpfc_read_la(phba, pmb, mp); 2926 pmb->vport = phba->pport; 2927 2928 /* Parse and translate status field */ 2929 mb = &pmb->u.mb; 2930 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 2931 2932 /* Parse and translate link attention fields */ 2933 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA; 2934 la->eventTag = acqe_link->event_tag; 2935 la->attType = att_type; 2936 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link); 2937 2938 /* Fake the the following irrelvant fields */ 2939 la->topology = TOPOLOGY_PT_PT; 2940 la->granted_AL_PA = 0; 2941 la->il = 0; 2942 la->pb = 0; 2943 la->fa = 0; 2944 la->mm = 0; 2945 2946 /* Keep the link status for extra SLI4 state machine reference */ 2947 phba->sli4_hba.link_state.speed = 2948 bf_get(lpfc_acqe_link_speed, acqe_link); 2949 phba->sli4_hba.link_state.duplex = 2950 bf_get(lpfc_acqe_link_duplex, acqe_link); 2951 phba->sli4_hba.link_state.status = 2952 bf_get(lpfc_acqe_link_status, acqe_link); 2953 phba->sli4_hba.link_state.physical = 2954 bf_get(lpfc_acqe_link_physical, acqe_link); 2955 phba->sli4_hba.link_state.fault = 2956 bf_get(lpfc_acqe_link_fault, acqe_link); 2957 2958 /* Invoke the lpfc_handle_latt mailbox command callback function */ 2959 lpfc_mbx_cmpl_read_la(phba, pmb); 2960 2961 return; 2962 2963out_free_dmabuf: 2964 kfree(mp); 2965out_free_pmb: 2966 mempool_free(pmb, phba->mbox_mem_pool); 2967} 2968 2969/** 2970 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event 2971 * @phba: pointer to lpfc hba data structure. 2972 * @acqe_link: pointer to the async fcoe completion queue entry. 2973 * 2974 * This routine is to handle the SLI4 asynchronous fcoe event. 2975 **/ 2976static void 2977lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, 2978 struct lpfc_acqe_fcoe *acqe_fcoe) 2979{ 2980 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe); 2981 int rc; 2982 struct lpfc_vport *vport; 2983 struct lpfc_nodelist *ndlp; 2984 struct Scsi_Host *shost; 2985 2986 phba->fc_eventTag = acqe_fcoe->event_tag; 2987 phba->fcoe_eventtag = acqe_fcoe->event_tag; 2988 switch (event_type) { 2989 case LPFC_FCOE_EVENT_TYPE_NEW_FCF: 2990 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 2991 "2546 New FCF found index 0x%x tag 0x%x\n", 2992 acqe_fcoe->index, 2993 acqe_fcoe->event_tag); 2994 /* 2995 * If the current FCF is in discovered state, or 2996 * FCF discovery is in progress do nothing. 2997 */ 2998 spin_lock_irq(&phba->hbalock); 2999 if ((phba->fcf.fcf_flag & FCF_DISCOVERED) || 3000 (phba->hba_flag & FCF_DISC_INPROGRESS)) { 3001 spin_unlock_irq(&phba->hbalock); 3002 break; 3003 } 3004 spin_unlock_irq(&phba->hbalock); 3005 3006 /* Read the FCF table and re-discover SAN. */ 3007 rc = lpfc_sli4_read_fcf_record(phba, 3008 LPFC_FCOE_FCF_GET_FIRST); 3009 if (rc) 3010 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 3011 "2547 Read FCF record failed 0x%x\n", 3012 rc); 3013 break; 3014 3015 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL: 3016 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3017 "2548 FCF Table full count 0x%x tag 0x%x\n", 3018 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe), 3019 acqe_fcoe->event_tag); 3020 break; 3021 3022 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD: 3023 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 3024 "2549 FCF disconnected fron network index 0x%x" 3025 " tag 0x%x\n", acqe_fcoe->index, 3026 acqe_fcoe->event_tag); 3027 /* If the event is not for currently used fcf do nothing */ 3028 if (phba->fcf.fcf_indx != acqe_fcoe->index) 3029 break; 3030 /* 3031 * Currently, driver support only one FCF - so treat this as 3032 * a link down. 3033 */ 3034 lpfc_linkdown(phba); 3035 /* Unregister FCF if no devices connected to it */ 3036 lpfc_unregister_unused_fcf(phba); 3037 break; 3038 case LPFC_FCOE_EVENT_TYPE_CVL: 3039 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 3040 "2718 Clear Virtual Link Received for VPI 0x%x" 3041 " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag); 3042 vport = lpfc_find_vport_by_vpid(phba, 3043 acqe_fcoe->index /*- phba->vpi_base*/); 3044 if (!vport) 3045 break; 3046 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3047 if (!ndlp) 3048 break; 3049 shost = lpfc_shost_from_vport(vport); 3050 lpfc_linkdown_port(vport); 3051 if (vport->port_type != LPFC_NPIV_PORT) { 3052 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3053 spin_lock_irq(shost->host_lock); 3054 ndlp->nlp_flag |= NLP_DELAY_TMO; 3055 spin_unlock_irq(shost->host_lock); 3056 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI; 3057 vport->port_state = LPFC_FLOGI; 3058 } 3059 break; 3060 default: 3061 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3062 "0288 Unknown FCoE event type 0x%x event tag " 3063 "0x%x\n", event_type, acqe_fcoe->event_tag); 3064 break; 3065 } 3066} 3067 3068/** 3069 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 3070 * @phba: pointer to lpfc hba data structure. 3071 * @acqe_link: pointer to the async dcbx completion queue entry. 3072 * 3073 * This routine is to handle the SLI4 asynchronous dcbx event. 3074 **/ 3075static void 3076lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 3077 struct lpfc_acqe_dcbx *acqe_dcbx) 3078{ 3079 phba->fc_eventTag = acqe_dcbx->event_tag; 3080 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3081 "0290 The SLI4 DCBX asynchronous event is not " 3082 "handled yet\n"); 3083} 3084 3085/** 3086 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3087 * @phba: pointer to lpfc hba data structure. 3088 * 3089 * This routine is invoked by the worker thread to process all the pending 3090 * SLI4 asynchronous events. 3091 **/ 3092void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3093{ 3094 struct lpfc_cq_event *cq_event; 3095 3096 /* First, declare the async event has been handled */ 3097 spin_lock_irq(&phba->hbalock); 3098 phba->hba_flag &= ~ASYNC_EVENT; 3099 spin_unlock_irq(&phba->hbalock); 3100 /* Now, handle all the async events */ 3101 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3102 /* Get the first event from the head of the event queue */ 3103 spin_lock_irq(&phba->hbalock); 3104 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3105 cq_event, struct lpfc_cq_event, list); 3106 spin_unlock_irq(&phba->hbalock); 3107 /* Process the asynchronous event */ 3108 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3109 case LPFC_TRAILER_CODE_LINK: 3110 lpfc_sli4_async_link_evt(phba, 3111 &cq_event->cqe.acqe_link); 3112 break; 3113 case LPFC_TRAILER_CODE_FCOE: 3114 lpfc_sli4_async_fcoe_evt(phba, 3115 &cq_event->cqe.acqe_fcoe); 3116 break; 3117 case LPFC_TRAILER_CODE_DCBX: 3118 lpfc_sli4_async_dcbx_evt(phba, 3119 &cq_event->cqe.acqe_dcbx); 3120 break; 3121 default: 3122 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3123 "1804 Invalid asynchrous event code: " 3124 "x%x\n", bf_get(lpfc_trailer_code, 3125 &cq_event->cqe.mcqe_cmpl)); 3126 break; 3127 } 3128 /* Free the completion event processed to the free pool */ 3129 lpfc_sli4_cq_event_release(phba, cq_event); 3130 } 3131} 3132 3133/** 3134 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3135 * @phba: pointer to lpfc hba data structure. 3136 * @dev_grp: The HBA PCI-Device group number. 3137 * 3138 * This routine is invoked to set up the per HBA PCI-Device group function 3139 * API jump table entries. 3140 * 3141 * Return: 0 if success, otherwise -ENODEV 3142 **/ 3143int 3144lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3145{ 3146 int rc; 3147 3148 /* Set up lpfc PCI-device group */ 3149 phba->pci_dev_grp = dev_grp; 3150 3151 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3152 if (dev_grp == LPFC_PCI_DEV_OC) 3153 phba->sli_rev = LPFC_SLI_REV4; 3154 3155 /* Set up device INIT API function jump table */ 3156 rc = lpfc_init_api_table_setup(phba, dev_grp); 3157 if (rc) 3158 return -ENODEV; 3159 /* Set up SCSI API function jump table */ 3160 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3161 if (rc) 3162 return -ENODEV; 3163 /* Set up SLI API function jump table */ 3164 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3165 if (rc) 3166 return -ENODEV; 3167 /* Set up MBOX API function jump table */ 3168 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3169 if (rc) 3170 return -ENODEV; 3171 3172 return 0; 3173} 3174 3175/** 3176 * lpfc_log_intr_mode - Log the active interrupt mode 3177 * @phba: pointer to lpfc hba data structure. 3178 * @intr_mode: active interrupt mode adopted. 3179 * 3180 * This routine it invoked to log the currently used active interrupt mode 3181 * to the device. 3182 **/ 3183static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3184{ 3185 switch (intr_mode) { 3186 case 0: 3187 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3188 "0470 Enable INTx interrupt mode.\n"); 3189 break; 3190 case 1: 3191 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3192 "0481 Enabled MSI interrupt mode.\n"); 3193 break; 3194 case 2: 3195 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3196 "0480 Enabled MSI-X interrupt mode.\n"); 3197 break; 3198 default: 3199 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3200 "0482 Illegal interrupt mode.\n"); 3201 break; 3202 } 3203 return; 3204} 3205 3206/** 3207 * lpfc_enable_pci_dev - Enable a generic PCI device. 3208 * @phba: pointer to lpfc hba data structure. 3209 * 3210 * This routine is invoked to enable the PCI device that is common to all 3211 * PCI devices. 3212 * 3213 * Return codes 3214 * 0 - sucessful 3215 * other values - error 3216 **/ 3217static int 3218lpfc_enable_pci_dev(struct lpfc_hba *phba) 3219{ 3220 struct pci_dev *pdev; 3221 int bars; 3222 3223 /* Obtain PCI device reference */ 3224 if (!phba->pcidev) 3225 goto out_error; 3226 else 3227 pdev = phba->pcidev; 3228 /* Select PCI BARs */ 3229 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3230 /* Enable PCI device */ 3231 if (pci_enable_device_mem(pdev)) 3232 goto out_error; 3233 /* Request PCI resource for the device */ 3234 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3235 goto out_disable_device; 3236 /* Set up device as PCI master and save state for EEH */ 3237 pci_set_master(pdev); 3238 pci_try_set_mwi(pdev); 3239 pci_save_state(pdev); 3240 3241 return 0; 3242 3243out_disable_device: 3244 pci_disable_device(pdev); 3245out_error: 3246 return -ENODEV; 3247} 3248 3249/** 3250 * lpfc_disable_pci_dev - Disable a generic PCI device. 3251 * @phba: pointer to lpfc hba data structure. 3252 * 3253 * This routine is invoked to disable the PCI device that is common to all 3254 * PCI devices. 3255 **/ 3256static void 3257lpfc_disable_pci_dev(struct lpfc_hba *phba) 3258{ 3259 struct pci_dev *pdev; 3260 int bars; 3261 3262 /* Obtain PCI device reference */ 3263 if (!phba->pcidev) 3264 return; 3265 else 3266 pdev = phba->pcidev; 3267 /* Select PCI BARs */ 3268 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3269 /* Release PCI resource and disable PCI device */ 3270 pci_release_selected_regions(pdev, bars); 3271 pci_disable_device(pdev); 3272 /* Null out PCI private reference to driver */ 3273 pci_set_drvdata(pdev, NULL); 3274 3275 return; 3276} 3277 3278/** 3279 * lpfc_reset_hba - Reset a hba 3280 * @phba: pointer to lpfc hba data structure. 3281 * 3282 * This routine is invoked to reset a hba device. It brings the HBA 3283 * offline, performs a board restart, and then brings the board back 3284 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 3285 * on outstanding mailbox commands. 3286 **/ 3287void 3288lpfc_reset_hba(struct lpfc_hba *phba) 3289{ 3290 /* If resets are disabled then set error state and return. */ 3291 if (!phba->cfg_enable_hba_reset) { 3292 phba->link_state = LPFC_HBA_ERROR; 3293 return; 3294 } 3295 lpfc_offline_prep(phba); 3296 lpfc_offline(phba); 3297 lpfc_sli_brdrestart(phba); 3298 lpfc_online(phba); 3299 lpfc_unblock_mgmt_io(phba); 3300} 3301 3302/** 3303 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 3304 * @phba: pointer to lpfc hba data structure. 3305 * 3306 * This routine is invoked to set up the driver internal resources specific to 3307 * support the SLI-3 HBA device it attached to. 3308 * 3309 * Return codes 3310 * 0 - sucessful 3311 * other values - error 3312 **/ 3313static int 3314lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 3315{ 3316 struct lpfc_sli *psli; 3317 3318 /* 3319 * Initialize timers used by driver 3320 */ 3321 3322 /* Heartbeat timer */ 3323 init_timer(&phba->hb_tmofunc); 3324 phba->hb_tmofunc.function = lpfc_hb_timeout; 3325 phba->hb_tmofunc.data = (unsigned long)phba; 3326 3327 psli = &phba->sli; 3328 /* MBOX heartbeat timer */ 3329 init_timer(&psli->mbox_tmo); 3330 psli->mbox_tmo.function = lpfc_mbox_timeout; 3331 psli->mbox_tmo.data = (unsigned long) phba; 3332 /* FCP polling mode timer */ 3333 init_timer(&phba->fcp_poll_timer); 3334 phba->fcp_poll_timer.function = lpfc_poll_timeout; 3335 phba->fcp_poll_timer.data = (unsigned long) phba; 3336 /* Fabric block timer */ 3337 init_timer(&phba->fabric_block_timer); 3338 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3339 phba->fabric_block_timer.data = (unsigned long) phba; 3340 /* EA polling mode timer */ 3341 init_timer(&phba->eratt_poll); 3342 phba->eratt_poll.function = lpfc_poll_eratt; 3343 phba->eratt_poll.data = (unsigned long) phba; 3344 3345 /* Host attention work mask setup */ 3346 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 3347 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 3348 3349 /* Get all the module params for configuring this host */ 3350 lpfc_get_cfgparam(phba); 3351 /* 3352 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3353 * used to create the sg_dma_buf_pool must be dynamically calculated. 3354 * 2 segments are added since the IOCB needs a command and response bde. 3355 */ 3356 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 3357 sizeof(struct fcp_rsp) + 3358 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 3359 3360 if (phba->cfg_enable_bg) { 3361 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 3362 phba->cfg_sg_dma_buf_size += 3363 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 3364 } 3365 3366 /* Also reinitialize the host templates with new values. */ 3367 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3368 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3369 3370 phba->max_vpi = LPFC_MAX_VPI; 3371 /* This will be set to correct value after config_port mbox */ 3372 phba->max_vports = 0; 3373 3374 /* 3375 * Initialize the SLI Layer to run with lpfc HBAs. 3376 */ 3377 lpfc_sli_setup(phba); 3378 lpfc_sli_queue_setup(phba); 3379 3380 /* Allocate device driver memory */ 3381 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 3382 return -ENOMEM; 3383 3384 return 0; 3385} 3386 3387/** 3388 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 3389 * @phba: pointer to lpfc hba data structure. 3390 * 3391 * This routine is invoked to unset the driver internal resources set up 3392 * specific for supporting the SLI-3 HBA device it attached to. 3393 **/ 3394static void 3395lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 3396{ 3397 /* Free device driver memory allocated */ 3398 lpfc_mem_free_all(phba); 3399 3400 return; 3401} 3402 3403/** 3404 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 3405 * @phba: pointer to lpfc hba data structure. 3406 * 3407 * This routine is invoked to set up the driver internal resources specific to 3408 * support the SLI-4 HBA device it attached to. 3409 * 3410 * Return codes 3411 * 0 - sucessful 3412 * other values - error 3413 **/ 3414static int 3415lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 3416{ 3417 struct lpfc_sli *psli; 3418 int rc; 3419 int i, hbq_count; 3420 3421 /* Before proceed, wait for POST done and device ready */ 3422 rc = lpfc_sli4_post_status_check(phba); 3423 if (rc) 3424 return -ENODEV; 3425 3426 /* 3427 * Initialize timers used by driver 3428 */ 3429 3430 /* Heartbeat timer */ 3431 init_timer(&phba->hb_tmofunc); 3432 phba->hb_tmofunc.function = lpfc_hb_timeout; 3433 phba->hb_tmofunc.data = (unsigned long)phba; 3434 3435 psli = &phba->sli; 3436 /* MBOX heartbeat timer */ 3437 init_timer(&psli->mbox_tmo); 3438 psli->mbox_tmo.function = lpfc_mbox_timeout; 3439 psli->mbox_tmo.data = (unsigned long) phba; 3440 /* Fabric block timer */ 3441 init_timer(&phba->fabric_block_timer); 3442 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3443 phba->fabric_block_timer.data = (unsigned long) phba; 3444 /* EA polling mode timer */ 3445 init_timer(&phba->eratt_poll); 3446 phba->eratt_poll.function = lpfc_poll_eratt; 3447 phba->eratt_poll.data = (unsigned long) phba; 3448 /* 3449 * We need to do a READ_CONFIG mailbox command here before 3450 * calling lpfc_get_cfgparam. For VFs this will report the 3451 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 3452 * All of the resources allocated 3453 * for this Port are tied to these values. 3454 */ 3455 /* Get all the module params for configuring this host */ 3456 lpfc_get_cfgparam(phba); 3457 phba->max_vpi = LPFC_MAX_VPI; 3458 /* This will be set to correct value after the read_config mbox */ 3459 phba->max_vports = 0; 3460 3461 /* Program the default value of vlan_id and fc_map */ 3462 phba->valid_vlan = 0; 3463 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 3464 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 3465 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 3466 3467 /* 3468 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3469 * used to create the sg_dma_buf_pool must be dynamically calculated. 3470 * 2 segments are added since the IOCB needs a command and response bde. 3471 * To insure that the scsi sgl does not cross a 4k page boundary only 3472 * sgl sizes of 1k, 2k, 4k, and 8k are supported. 3473 * Table of sgl sizes and seg_cnt: 3474 * sgl size, sg_seg_cnt total seg 3475 * 1k 50 52 3476 * 2k 114 116 3477 * 4k 242 244 3478 * 8k 498 500 3479 * cmd(32) + rsp(160) + (52 * sizeof(sli4_sge)) = 1024 3480 * cmd(32) + rsp(160) + (116 * sizeof(sli4_sge)) = 2048 3481 * cmd(32) + rsp(160) + (244 * sizeof(sli4_sge)) = 4096 3482 * cmd(32) + rsp(160) + (500 * sizeof(sli4_sge)) = 8192 3483 */ 3484 if (phba->cfg_sg_seg_cnt <= LPFC_DEFAULT_SG_SEG_CNT) 3485 phba->cfg_sg_seg_cnt = 50; 3486 else if (phba->cfg_sg_seg_cnt <= 114) 3487 phba->cfg_sg_seg_cnt = 114; 3488 else if (phba->cfg_sg_seg_cnt <= 242) 3489 phba->cfg_sg_seg_cnt = 242; 3490 else 3491 phba->cfg_sg_seg_cnt = 498; 3492 3493 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) 3494 + sizeof(struct fcp_rsp); 3495 phba->cfg_sg_dma_buf_size += 3496 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)); 3497 3498 /* Initialize buffer queue management fields */ 3499 hbq_count = lpfc_sli_hbq_count(); 3500 for (i = 0; i < hbq_count; ++i) 3501 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 3502 INIT_LIST_HEAD(&phba->rb_pend_list); 3503 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 3504 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 3505 3506 /* 3507 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 3508 */ 3509 /* Initialize the Abort scsi buffer list used by driver */ 3510 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 3511 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 3512 /* This abort list used by worker thread */ 3513 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 3514 3515 /* 3516 * Initialize dirver internal slow-path work queues 3517 */ 3518 3519 /* Driver internel slow-path CQ Event pool */ 3520 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 3521 /* Response IOCB work queue list */ 3522 INIT_LIST_HEAD(&phba->sli4_hba.sp_rspiocb_work_queue); 3523 /* Asynchronous event CQ Event work queue list */ 3524 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 3525 /* Fast-path XRI aborted CQ Event work queue list */ 3526 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 3527 /* Slow-path XRI aborted CQ Event work queue list */ 3528 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 3529 /* Receive queue CQ Event work queue list */ 3530 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 3531 3532 /* Initialize the driver internal SLI layer lists. */ 3533 lpfc_sli_setup(phba); 3534 lpfc_sli_queue_setup(phba); 3535 3536 /* Allocate device driver memory */ 3537 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 3538 if (rc) 3539 return -ENOMEM; 3540 3541 /* Create the bootstrap mailbox command */ 3542 rc = lpfc_create_bootstrap_mbox(phba); 3543 if (unlikely(rc)) 3544 goto out_free_mem; 3545 3546 /* Set up the host's endian order with the device. */ 3547 rc = lpfc_setup_endian_order(phba); 3548 if (unlikely(rc)) 3549 goto out_free_bsmbx; 3550 3551 rc = lpfc_sli4_fw_cfg_check(phba); 3552 if (unlikely(rc)) 3553 goto out_free_bsmbx; 3554 3555 /* Set up the hba's configuration parameters. */ 3556 rc = lpfc_sli4_read_config(phba); 3557 if (unlikely(rc)) 3558 goto out_free_bsmbx; 3559 3560 /* Perform a function reset */ 3561 rc = lpfc_pci_function_reset(phba); 3562 if (unlikely(rc)) 3563 goto out_free_bsmbx; 3564 3565 /* Create all the SLI4 queues */ 3566 rc = lpfc_sli4_queue_create(phba); 3567 if (rc) 3568 goto out_free_bsmbx; 3569 3570 /* Create driver internal CQE event pool */ 3571 rc = lpfc_sli4_cq_event_pool_create(phba); 3572 if (rc) 3573 goto out_destroy_queue; 3574 3575 /* Initialize and populate the iocb list per host */ 3576 rc = lpfc_init_sgl_list(phba); 3577 if (rc) { 3578 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3579 "1400 Failed to initialize sgl list.\n"); 3580 goto out_destroy_cq_event_pool; 3581 } 3582 rc = lpfc_init_active_sgl_array(phba); 3583 if (rc) { 3584 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3585 "1430 Failed to initialize sgl list.\n"); 3586 goto out_free_sgl_list; 3587 } 3588 3589 rc = lpfc_sli4_init_rpi_hdrs(phba); 3590 if (rc) { 3591 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3592 "1432 Failed to initialize rpi headers.\n"); 3593 goto out_free_active_sgl; 3594 } 3595 3596 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 3597 phba->cfg_fcp_eq_count), GFP_KERNEL); 3598 if (!phba->sli4_hba.fcp_eq_hdl) { 3599 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3600 "2572 Failed allocate memory for fast-path " 3601 "per-EQ handle array\n"); 3602 goto out_remove_rpi_hdrs; 3603 } 3604 3605 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 3606 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 3607 if (!phba->sli4_hba.msix_entries) { 3608 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3609 "2573 Failed allocate memory for msi-x " 3610 "interrupt vector entries\n"); 3611 goto out_free_fcp_eq_hdl; 3612 } 3613 3614 return rc; 3615 3616out_free_fcp_eq_hdl: 3617 kfree(phba->sli4_hba.fcp_eq_hdl); 3618out_remove_rpi_hdrs: 3619 lpfc_sli4_remove_rpi_hdrs(phba); 3620out_free_active_sgl: 3621 lpfc_free_active_sgl(phba); 3622out_free_sgl_list: 3623 lpfc_free_sgl_list(phba); 3624out_destroy_cq_event_pool: 3625 lpfc_sli4_cq_event_pool_destroy(phba); 3626out_destroy_queue: 3627 lpfc_sli4_queue_destroy(phba); 3628out_free_bsmbx: 3629 lpfc_destroy_bootstrap_mbox(phba); 3630out_free_mem: 3631 lpfc_mem_free(phba); 3632 return rc; 3633} 3634 3635/** 3636 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 3637 * @phba: pointer to lpfc hba data structure. 3638 * 3639 * This routine is invoked to unset the driver internal resources set up 3640 * specific for supporting the SLI-4 HBA device it attached to. 3641 **/ 3642static void 3643lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 3644{ 3645 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 3646 3647 /* unregister default FCFI from the HBA */ 3648 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi); 3649 3650 /* Free the default FCR table */ 3651 lpfc_sli_remove_dflt_fcf(phba); 3652 3653 /* Free memory allocated for msi-x interrupt vector entries */ 3654 kfree(phba->sli4_hba.msix_entries); 3655 3656 /* Free memory allocated for fast-path work queue handles */ 3657 kfree(phba->sli4_hba.fcp_eq_hdl); 3658 3659 /* Free the allocated rpi headers. */ 3660 lpfc_sli4_remove_rpi_hdrs(phba); 3661 lpfc_sli4_remove_rpis(phba); 3662 3663 /* Free the ELS sgl list */ 3664 lpfc_free_active_sgl(phba); 3665 lpfc_free_sgl_list(phba); 3666 3667 /* Free the SCSI sgl management array */ 3668 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 3669 3670 /* Free the SLI4 queues */ 3671 lpfc_sli4_queue_destroy(phba); 3672 3673 /* Free the completion queue EQ event pool */ 3674 lpfc_sli4_cq_event_release_all(phba); 3675 lpfc_sli4_cq_event_pool_destroy(phba); 3676 3677 /* Reset SLI4 HBA FCoE function */ 3678 lpfc_pci_function_reset(phba); 3679 3680 /* Free the bsmbx region. */ 3681 lpfc_destroy_bootstrap_mbox(phba); 3682 3683 /* Free the SLI Layer memory with SLI4 HBAs */ 3684 lpfc_mem_free_all(phba); 3685 3686 /* Free the current connect table */ 3687 list_for_each_entry_safe(conn_entry, next_conn_entry, 3688 &phba->fcf_conn_rec_list, list) { 3689 list_del_init(&conn_entry->list); 3690 kfree(conn_entry); 3691 } 3692 3693 return; 3694} 3695 3696/** 3697 * lpfc_init_api_table_setup - Set up init api fucntion jump table 3698 * @phba: The hba struct for which this call is being executed. 3699 * @dev_grp: The HBA PCI-Device group number. 3700 * 3701 * This routine sets up the device INIT interface API function jump table 3702 * in @phba struct. 3703 * 3704 * Returns: 0 - success, -ENODEV - failure. 3705 **/ 3706int 3707lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3708{ 3709 switch (dev_grp) { 3710 case LPFC_PCI_DEV_LP: 3711 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 3712 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 3713 phba->lpfc_stop_port = lpfc_stop_port_s3; 3714 break; 3715 case LPFC_PCI_DEV_OC: 3716 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 3717 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 3718 phba->lpfc_stop_port = lpfc_stop_port_s4; 3719 break; 3720 default: 3721 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3722 "1431 Invalid HBA PCI-device group: 0x%x\n", 3723 dev_grp); 3724 return -ENODEV; 3725 break; 3726 } 3727 return 0; 3728} 3729 3730/** 3731 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 3732 * @phba: pointer to lpfc hba data structure. 3733 * 3734 * This routine is invoked to set up the driver internal resources before the 3735 * device specific resource setup to support the HBA device it attached to. 3736 * 3737 * Return codes 3738 * 0 - sucessful 3739 * other values - error 3740 **/ 3741static int 3742lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 3743{ 3744 /* 3745 * Driver resources common to all SLI revisions 3746 */ 3747 atomic_set(&phba->fast_event_count, 0); 3748 spin_lock_init(&phba->hbalock); 3749 3750 /* Initialize ndlp management spinlock */ 3751 spin_lock_init(&phba->ndlp_lock); 3752 3753 INIT_LIST_HEAD(&phba->port_list); 3754 INIT_LIST_HEAD(&phba->work_list); 3755 init_waitqueue_head(&phba->wait_4_mlo_m_q); 3756 3757 /* Initialize the wait queue head for the kernel thread */ 3758 init_waitqueue_head(&phba->work_waitq); 3759 3760 /* Initialize the scsi buffer list used by driver for scsi IO */ 3761 spin_lock_init(&phba->scsi_buf_list_lock); 3762 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 3763 3764 /* Initialize the fabric iocb list */ 3765 INIT_LIST_HEAD(&phba->fabric_iocb_list); 3766 3767 /* Initialize list to save ELS buffers */ 3768 INIT_LIST_HEAD(&phba->elsbuf); 3769 3770 /* Initialize FCF connection rec list */ 3771 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 3772 3773 return 0; 3774} 3775 3776/** 3777 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 3778 * @phba: pointer to lpfc hba data structure. 3779 * 3780 * This routine is invoked to set up the driver internal resources after the 3781 * device specific resource setup to support the HBA device it attached to. 3782 * 3783 * Return codes 3784 * 0 - sucessful 3785 * other values - error 3786 **/ 3787static int 3788lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 3789{ 3790 int error; 3791 3792 /* Startup the kernel thread for this host adapter. */ 3793 phba->worker_thread = kthread_run(lpfc_do_work, phba, 3794 "lpfc_worker_%d", phba->brd_no); 3795 if (IS_ERR(phba->worker_thread)) { 3796 error = PTR_ERR(phba->worker_thread); 3797 return error; 3798 } 3799 3800 return 0; 3801} 3802 3803/** 3804 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 3805 * @phba: pointer to lpfc hba data structure. 3806 * 3807 * This routine is invoked to unset the driver internal resources set up after 3808 * the device specific resource setup for supporting the HBA device it 3809 * attached to. 3810 **/ 3811static void 3812lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 3813{ 3814 /* Stop kernel worker thread */ 3815 kthread_stop(phba->worker_thread); 3816} 3817 3818/** 3819 * lpfc_free_iocb_list - Free iocb list. 3820 * @phba: pointer to lpfc hba data structure. 3821 * 3822 * This routine is invoked to free the driver's IOCB list and memory. 3823 **/ 3824static void 3825lpfc_free_iocb_list(struct lpfc_hba *phba) 3826{ 3827 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 3828 3829 spin_lock_irq(&phba->hbalock); 3830 list_for_each_entry_safe(iocbq_entry, iocbq_next, 3831 &phba->lpfc_iocb_list, list) { 3832 list_del(&iocbq_entry->list); 3833 kfree(iocbq_entry); 3834 phba->total_iocbq_bufs--; 3835 } 3836 spin_unlock_irq(&phba->hbalock); 3837 3838 return; 3839} 3840 3841/** 3842 * lpfc_init_iocb_list - Allocate and initialize iocb list. 3843 * @phba: pointer to lpfc hba data structure. 3844 * 3845 * This routine is invoked to allocate and initizlize the driver's IOCB 3846 * list and set up the IOCB tag array accordingly. 3847 * 3848 * Return codes 3849 * 0 - sucessful 3850 * other values - error 3851 **/ 3852static int 3853lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 3854{ 3855 struct lpfc_iocbq *iocbq_entry = NULL; 3856 uint16_t iotag; 3857 int i; 3858 3859 /* Initialize and populate the iocb list per host. */ 3860 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 3861 for (i = 0; i < iocb_count; i++) { 3862 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 3863 if (iocbq_entry == NULL) { 3864 printk(KERN_ERR "%s: only allocated %d iocbs of " 3865 "expected %d count. Unloading driver.\n", 3866 __func__, i, LPFC_IOCB_LIST_CNT); 3867 goto out_free_iocbq; 3868 } 3869 3870 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 3871 if (iotag == 0) { 3872 kfree(iocbq_entry); 3873 printk(KERN_ERR "%s: failed to allocate IOTAG. " 3874 "Unloading driver.\n", __func__); 3875 goto out_free_iocbq; 3876 } 3877 iocbq_entry->sli4_xritag = NO_XRI; 3878 3879 spin_lock_irq(&phba->hbalock); 3880 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 3881 phba->total_iocbq_bufs++; 3882 spin_unlock_irq(&phba->hbalock); 3883 } 3884 3885 return 0; 3886 3887out_free_iocbq: 3888 lpfc_free_iocb_list(phba); 3889 3890 return -ENOMEM; 3891} 3892 3893/** 3894 * lpfc_free_sgl_list - Free sgl list. 3895 * @phba: pointer to lpfc hba data structure. 3896 * 3897 * This routine is invoked to free the driver's sgl list and memory. 3898 **/ 3899static void 3900lpfc_free_sgl_list(struct lpfc_hba *phba) 3901{ 3902 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 3903 LIST_HEAD(sglq_list); 3904 int rc = 0; 3905 3906 spin_lock_irq(&phba->hbalock); 3907 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 3908 spin_unlock_irq(&phba->hbalock); 3909 3910 list_for_each_entry_safe(sglq_entry, sglq_next, 3911 &sglq_list, list) { 3912 list_del(&sglq_entry->list); 3913 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 3914 kfree(sglq_entry); 3915 phba->sli4_hba.total_sglq_bufs--; 3916 } 3917 rc = lpfc_sli4_remove_all_sgl_pages(phba); 3918 if (rc) { 3919 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3920 "2005 Unable to deregister pages from HBA: %x", rc); 3921 } 3922 kfree(phba->sli4_hba.lpfc_els_sgl_array); 3923} 3924 3925/** 3926 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 3927 * @phba: pointer to lpfc hba data structure. 3928 * 3929 * This routine is invoked to allocate the driver's active sgl memory. 3930 * This array will hold the sglq_entry's for active IOs. 3931 **/ 3932static int 3933lpfc_init_active_sgl_array(struct lpfc_hba *phba) 3934{ 3935 int size; 3936 size = sizeof(struct lpfc_sglq *); 3937 size *= phba->sli4_hba.max_cfg_param.max_xri; 3938 3939 phba->sli4_hba.lpfc_sglq_active_list = 3940 kzalloc(size, GFP_KERNEL); 3941 if (!phba->sli4_hba.lpfc_sglq_active_list) 3942 return -ENOMEM; 3943 return 0; 3944} 3945 3946/** 3947 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 3948 * @phba: pointer to lpfc hba data structure. 3949 * 3950 * This routine is invoked to walk through the array of active sglq entries 3951 * and free all of the resources. 3952 * This is just a place holder for now. 3953 **/ 3954static void 3955lpfc_free_active_sgl(struct lpfc_hba *phba) 3956{ 3957 kfree(phba->sli4_hba.lpfc_sglq_active_list); 3958} 3959 3960/** 3961 * lpfc_init_sgl_list - Allocate and initialize sgl list. 3962 * @phba: pointer to lpfc hba data structure. 3963 * 3964 * This routine is invoked to allocate and initizlize the driver's sgl 3965 * list and set up the sgl xritag tag array accordingly. 3966 * 3967 * Return codes 3968 * 0 - sucessful 3969 * other values - error 3970 **/ 3971static int 3972lpfc_init_sgl_list(struct lpfc_hba *phba) 3973{ 3974 struct lpfc_sglq *sglq_entry = NULL; 3975 int i; 3976 int els_xri_cnt; 3977 3978 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3979 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3980 "2400 lpfc_init_sgl_list els %d.\n", 3981 els_xri_cnt); 3982 /* Initialize and populate the sglq list per host/VF. */ 3983 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 3984 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 3985 3986 /* Sanity check on XRI management */ 3987 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 3988 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3989 "2562 No room left for SCSI XRI allocation: " 3990 "max_xri=%d, els_xri=%d\n", 3991 phba->sli4_hba.max_cfg_param.max_xri, 3992 els_xri_cnt); 3993 return -ENOMEM; 3994 } 3995 3996 /* Allocate memory for the ELS XRI management array */ 3997 phba->sli4_hba.lpfc_els_sgl_array = 3998 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 3999 GFP_KERNEL); 4000 4001 if (!phba->sli4_hba.lpfc_els_sgl_array) { 4002 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4003 "2401 Failed to allocate memory for ELS " 4004 "XRI management array of size %d.\n", 4005 els_xri_cnt); 4006 return -ENOMEM; 4007 } 4008 4009 /* Keep the SCSI XRI into the XRI management array */ 4010 phba->sli4_hba.scsi_xri_max = 4011 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 4012 phba->sli4_hba.scsi_xri_cnt = 0; 4013 4014 phba->sli4_hba.lpfc_scsi_psb_array = 4015 kzalloc((sizeof(struct lpfc_scsi_buf *) * 4016 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 4017 4018 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 4019 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4020 "2563 Failed to allocate memory for SCSI " 4021 "XRI management array of size %d.\n", 4022 phba->sli4_hba.scsi_xri_max); 4023 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4024 return -ENOMEM; 4025 } 4026 4027 for (i = 0; i < els_xri_cnt; i++) { 4028 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 4029 if (sglq_entry == NULL) { 4030 printk(KERN_ERR "%s: only allocated %d sgls of " 4031 "expected %d count. Unloading driver.\n", 4032 __func__, i, els_xri_cnt); 4033 goto out_free_mem; 4034 } 4035 4036 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba); 4037 if (sglq_entry->sli4_xritag == NO_XRI) { 4038 kfree(sglq_entry); 4039 printk(KERN_ERR "%s: failed to allocate XRI.\n" 4040 "Unloading driver.\n", __func__); 4041 goto out_free_mem; 4042 } 4043 sglq_entry->buff_type = GEN_BUFF_TYPE; 4044 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 4045 if (sglq_entry->virt == NULL) { 4046 kfree(sglq_entry); 4047 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 4048 "Unloading driver.\n", __func__); 4049 goto out_free_mem; 4050 } 4051 sglq_entry->sgl = sglq_entry->virt; 4052 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 4053 4054 /* The list order is used by later block SGL registraton */ 4055 spin_lock_irq(&phba->hbalock); 4056 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 4057 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 4058 phba->sli4_hba.total_sglq_bufs++; 4059 spin_unlock_irq(&phba->hbalock); 4060 } 4061 return 0; 4062 4063out_free_mem: 4064 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4065 lpfc_free_sgl_list(phba); 4066 return -ENOMEM; 4067} 4068 4069/** 4070 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 4071 * @phba: pointer to lpfc hba data structure. 4072 * 4073 * This routine is invoked to post rpi header templates to the 4074 * HBA consistent with the SLI-4 interface spec. This routine 4075 * posts a PAGE_SIZE memory region to the port to hold up to 4076 * PAGE_SIZE modulo 64 rpi context headers. 4077 * No locks are held here because this is an initialization routine 4078 * called only from probe or lpfc_online when interrupts are not 4079 * enabled and the driver is reinitializing the device. 4080 * 4081 * Return codes 4082 * 0 - sucessful 4083 * ENOMEM - No availble memory 4084 * EIO - The mailbox failed to complete successfully. 4085 **/ 4086int 4087lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 4088{ 4089 int rc = 0; 4090 int longs; 4091 uint16_t rpi_count; 4092 struct lpfc_rpi_hdr *rpi_hdr; 4093 4094 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 4095 4096 /* 4097 * Provision an rpi bitmask range for discovery. The total count 4098 * is the difference between max and base + 1. 4099 */ 4100 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base + 4101 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4102 4103 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG; 4104 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long), 4105 GFP_KERNEL); 4106 if (!phba->sli4_hba.rpi_bmask) 4107 return -ENOMEM; 4108 4109 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 4110 if (!rpi_hdr) { 4111 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 4112 "0391 Error during rpi post operation\n"); 4113 lpfc_sli4_remove_rpis(phba); 4114 rc = -ENODEV; 4115 } 4116 4117 return rc; 4118} 4119 4120/** 4121 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 4122 * @phba: pointer to lpfc hba data structure. 4123 * 4124 * This routine is invoked to allocate a single 4KB memory region to 4125 * support rpis and stores them in the phba. This single region 4126 * provides support for up to 64 rpis. The region is used globally 4127 * by the device. 4128 * 4129 * Returns: 4130 * A valid rpi hdr on success. 4131 * A NULL pointer on any failure. 4132 **/ 4133struct lpfc_rpi_hdr * 4134lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 4135{ 4136 uint16_t rpi_limit, curr_rpi_range; 4137 struct lpfc_dmabuf *dmabuf; 4138 struct lpfc_rpi_hdr *rpi_hdr; 4139 4140 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 4141 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4142 4143 spin_lock_irq(&phba->hbalock); 4144 curr_rpi_range = phba->sli4_hba.next_rpi; 4145 spin_unlock_irq(&phba->hbalock); 4146 4147 /* 4148 * The port has a limited number of rpis. The increment here 4149 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 4150 * and to allow the full max_rpi range per port. 4151 */ 4152 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 4153 return NULL; 4154 4155 /* 4156 * First allocate the protocol header region for the port. The 4157 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 4158 */ 4159 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4160 if (!dmabuf) 4161 return NULL; 4162 4163 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4164 LPFC_HDR_TEMPLATE_SIZE, 4165 &dmabuf->phys, 4166 GFP_KERNEL); 4167 if (!dmabuf->virt) { 4168 rpi_hdr = NULL; 4169 goto err_free_dmabuf; 4170 } 4171 4172 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 4173 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 4174 rpi_hdr = NULL; 4175 goto err_free_coherent; 4176 } 4177 4178 /* Save the rpi header data for cleanup later. */ 4179 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 4180 if (!rpi_hdr) 4181 goto err_free_coherent; 4182 4183 rpi_hdr->dmabuf = dmabuf; 4184 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 4185 rpi_hdr->page_count = 1; 4186 spin_lock_irq(&phba->hbalock); 4187 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi; 4188 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 4189 4190 /* 4191 * The next_rpi stores the next module-64 rpi value to post 4192 * in any subsequent rpi memory region postings. 4193 */ 4194 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT; 4195 spin_unlock_irq(&phba->hbalock); 4196 return rpi_hdr; 4197 4198 err_free_coherent: 4199 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 4200 dmabuf->virt, dmabuf->phys); 4201 err_free_dmabuf: 4202 kfree(dmabuf); 4203 return NULL; 4204} 4205 4206/** 4207 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 4208 * @phba: pointer to lpfc hba data structure. 4209 * 4210 * This routine is invoked to remove all memory resources allocated 4211 * to support rpis. This routine presumes the caller has released all 4212 * rpis consumed by fabric or port logins and is prepared to have 4213 * the header pages removed. 4214 **/ 4215void 4216lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 4217{ 4218 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 4219 4220 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 4221 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 4222 list_del(&rpi_hdr->list); 4223 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 4224 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 4225 kfree(rpi_hdr->dmabuf); 4226 kfree(rpi_hdr); 4227 } 4228 4229 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4230 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask)); 4231} 4232 4233/** 4234 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 4235 * @pdev: pointer to pci device data structure. 4236 * 4237 * This routine is invoked to allocate the driver hba data structure for an 4238 * HBA device. If the allocation is successful, the phba reference to the 4239 * PCI device data structure is set. 4240 * 4241 * Return codes 4242 * pointer to @phba - sucessful 4243 * NULL - error 4244 **/ 4245static struct lpfc_hba * 4246lpfc_hba_alloc(struct pci_dev *pdev) 4247{ 4248 struct lpfc_hba *phba; 4249 4250 /* Allocate memory for HBA structure */ 4251 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 4252 if (!phba) { 4253 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 4254 return NULL; 4255 } 4256 4257 /* Set reference to PCI device in HBA structure */ 4258 phba->pcidev = pdev; 4259 4260 /* Assign an unused board number */ 4261 phba->brd_no = lpfc_get_instance(); 4262 if (phba->brd_no < 0) { 4263 kfree(phba); 4264 return NULL; 4265 } 4266 4267 mutex_init(&phba->ct_event_mutex); 4268 INIT_LIST_HEAD(&phba->ct_ev_waiters); 4269 4270 return phba; 4271} 4272 4273/** 4274 * lpfc_hba_free - Free driver hba data structure with a device. 4275 * @phba: pointer to lpfc hba data structure. 4276 * 4277 * This routine is invoked to free the driver hba data structure with an 4278 * HBA device. 4279 **/ 4280static void 4281lpfc_hba_free(struct lpfc_hba *phba) 4282{ 4283 /* Release the driver assigned board number */ 4284 idr_remove(&lpfc_hba_index, phba->brd_no); 4285 4286 kfree(phba); 4287 return; 4288} 4289 4290/** 4291 * lpfc_create_shost - Create hba physical port with associated scsi host. 4292 * @phba: pointer to lpfc hba data structure. 4293 * 4294 * This routine is invoked to create HBA physical port and associate a SCSI 4295 * host with it. 4296 * 4297 * Return codes 4298 * 0 - sucessful 4299 * other values - error 4300 **/ 4301static int 4302lpfc_create_shost(struct lpfc_hba *phba) 4303{ 4304 struct lpfc_vport *vport; 4305 struct Scsi_Host *shost; 4306 4307 /* Initialize HBA FC structure */ 4308 phba->fc_edtov = FF_DEF_EDTOV; 4309 phba->fc_ratov = FF_DEF_RATOV; 4310 phba->fc_altov = FF_DEF_ALTOV; 4311 phba->fc_arbtov = FF_DEF_ARBTOV; 4312 4313 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 4314 if (!vport) 4315 return -ENODEV; 4316 4317 shost = lpfc_shost_from_vport(vport); 4318 phba->pport = vport; 4319 lpfc_debugfs_initialize(vport); 4320 /* Put reference to SCSI host to driver's device private data */ 4321 pci_set_drvdata(phba->pcidev, shost); 4322 4323 return 0; 4324} 4325 4326/** 4327 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 4328 * @phba: pointer to lpfc hba data structure. 4329 * 4330 * This routine is invoked to destroy HBA physical port and the associated 4331 * SCSI host. 4332 **/ 4333static void 4334lpfc_destroy_shost(struct lpfc_hba *phba) 4335{ 4336 struct lpfc_vport *vport = phba->pport; 4337 4338 /* Destroy physical port that associated with the SCSI host */ 4339 destroy_port(vport); 4340 4341 return; 4342} 4343 4344/** 4345 * lpfc_setup_bg - Setup Block guard structures and debug areas. 4346 * @phba: pointer to lpfc hba data structure. 4347 * @shost: the shost to be used to detect Block guard settings. 4348 * 4349 * This routine sets up the local Block guard protocol settings for @shost. 4350 * This routine also allocates memory for debugging bg buffers. 4351 **/ 4352static void 4353lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 4354{ 4355 int pagecnt = 10; 4356 if (lpfc_prot_mask && lpfc_prot_guard) { 4357 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4358 "1478 Registering BlockGuard with the " 4359 "SCSI layer\n"); 4360 scsi_host_set_prot(shost, lpfc_prot_mask); 4361 scsi_host_set_guard(shost, lpfc_prot_guard); 4362 } 4363 if (!_dump_buf_data) { 4364 while (pagecnt) { 4365 spin_lock_init(&_dump_buf_lock); 4366 _dump_buf_data = 4367 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4368 if (_dump_buf_data) { 4369 printk(KERN_ERR "BLKGRD allocated %d pages for " 4370 "_dump_buf_data at 0x%p\n", 4371 (1 << pagecnt), _dump_buf_data); 4372 _dump_buf_data_order = pagecnt; 4373 memset(_dump_buf_data, 0, 4374 ((1 << PAGE_SHIFT) << pagecnt)); 4375 break; 4376 } else 4377 --pagecnt; 4378 } 4379 if (!_dump_buf_data_order) 4380 printk(KERN_ERR "BLKGRD ERROR unable to allocate " 4381 "memory for hexdump\n"); 4382 } else 4383 printk(KERN_ERR "BLKGRD already allocated _dump_buf_data=0x%p" 4384 "\n", _dump_buf_data); 4385 if (!_dump_buf_dif) { 4386 while (pagecnt) { 4387 _dump_buf_dif = 4388 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4389 if (_dump_buf_dif) { 4390 printk(KERN_ERR "BLKGRD allocated %d pages for " 4391 "_dump_buf_dif at 0x%p\n", 4392 (1 << pagecnt), _dump_buf_dif); 4393 _dump_buf_dif_order = pagecnt; 4394 memset(_dump_buf_dif, 0, 4395 ((1 << PAGE_SHIFT) << pagecnt)); 4396 break; 4397 } else 4398 --pagecnt; 4399 } 4400 if (!_dump_buf_dif_order) 4401 printk(KERN_ERR "BLKGRD ERROR unable to allocate " 4402 "memory for hexdump\n"); 4403 } else 4404 printk(KERN_ERR "BLKGRD already allocated _dump_buf_dif=0x%p\n", 4405 _dump_buf_dif); 4406} 4407 4408/** 4409 * lpfc_post_init_setup - Perform necessary device post initialization setup. 4410 * @phba: pointer to lpfc hba data structure. 4411 * 4412 * This routine is invoked to perform all the necessary post initialization 4413 * setup for the device. 4414 **/ 4415static void 4416lpfc_post_init_setup(struct lpfc_hba *phba) 4417{ 4418 struct Scsi_Host *shost; 4419 struct lpfc_adapter_event_header adapter_event; 4420 4421 /* Get the default values for Model Name and Description */ 4422 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 4423 4424 /* 4425 * hba setup may have changed the hba_queue_depth so we need to 4426 * adjust the value of can_queue. 4427 */ 4428 shost = pci_get_drvdata(phba->pcidev); 4429 shost->can_queue = phba->cfg_hba_queue_depth - 10; 4430 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 4431 lpfc_setup_bg(phba, shost); 4432 4433 lpfc_host_attrib_init(shost); 4434 4435 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 4436 spin_lock_irq(shost->host_lock); 4437 lpfc_poll_start_timer(phba); 4438 spin_unlock_irq(shost->host_lock); 4439 } 4440 4441 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4442 "0428 Perform SCSI scan\n"); 4443 /* Send board arrival event to upper layer */ 4444 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 4445 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 4446 fc_host_post_vendor_event(shost, fc_get_event_number(), 4447 sizeof(adapter_event), 4448 (char *) &adapter_event, 4449 LPFC_NL_VENDOR_ID); 4450 return; 4451} 4452 4453/** 4454 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 4455 * @phba: pointer to lpfc hba data structure. 4456 * 4457 * This routine is invoked to set up the PCI device memory space for device 4458 * with SLI-3 interface spec. 4459 * 4460 * Return codes 4461 * 0 - sucessful 4462 * other values - error 4463 **/ 4464static int 4465lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 4466{ 4467 struct pci_dev *pdev; 4468 unsigned long bar0map_len, bar2map_len; 4469 int i, hbq_count; 4470 void *ptr; 4471 int error = -ENODEV; 4472 4473 /* Obtain PCI device reference */ 4474 if (!phba->pcidev) 4475 return error; 4476 else 4477 pdev = phba->pcidev; 4478 4479 /* Set the device DMA mask size */ 4480 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) 4481 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) 4482 return error; 4483 4484 /* Get the bus address of Bar0 and Bar2 and the number of bytes 4485 * required by each mapping. 4486 */ 4487 phba->pci_bar0_map = pci_resource_start(pdev, 0); 4488 bar0map_len = pci_resource_len(pdev, 0); 4489 4490 phba->pci_bar2_map = pci_resource_start(pdev, 2); 4491 bar2map_len = pci_resource_len(pdev, 2); 4492 4493 /* Map HBA SLIM to a kernel virtual address. */ 4494 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 4495 if (!phba->slim_memmap_p) { 4496 dev_printk(KERN_ERR, &pdev->dev, 4497 "ioremap failed for SLIM memory.\n"); 4498 goto out; 4499 } 4500 4501 /* Map HBA Control Registers to a kernel virtual address. */ 4502 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 4503 if (!phba->ctrl_regs_memmap_p) { 4504 dev_printk(KERN_ERR, &pdev->dev, 4505 "ioremap failed for HBA control registers.\n"); 4506 goto out_iounmap_slim; 4507 } 4508 4509 /* Allocate memory for SLI-2 structures */ 4510 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 4511 SLI2_SLIM_SIZE, 4512 &phba->slim2p.phys, 4513 GFP_KERNEL); 4514 if (!phba->slim2p.virt) 4515 goto out_iounmap; 4516 4517 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 4518 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 4519 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 4520 phba->IOCBs = (phba->slim2p.virt + 4521 offsetof(struct lpfc_sli2_slim, IOCBs)); 4522 4523 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 4524 lpfc_sli_hbq_size(), 4525 &phba->hbqslimp.phys, 4526 GFP_KERNEL); 4527 if (!phba->hbqslimp.virt) 4528 goto out_free_slim; 4529 4530 hbq_count = lpfc_sli_hbq_count(); 4531 ptr = phba->hbqslimp.virt; 4532 for (i = 0; i < hbq_count; ++i) { 4533 phba->hbqs[i].hbq_virt = ptr; 4534 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4535 ptr += (lpfc_hbq_defs[i]->entry_count * 4536 sizeof(struct lpfc_hbq_entry)); 4537 } 4538 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 4539 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 4540 4541 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 4542 4543 INIT_LIST_HEAD(&phba->rb_pend_list); 4544 4545 phba->MBslimaddr = phba->slim_memmap_p; 4546 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 4547 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 4548 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 4549 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 4550 4551 return 0; 4552 4553out_free_slim: 4554 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 4555 phba->slim2p.virt, phba->slim2p.phys); 4556out_iounmap: 4557 iounmap(phba->ctrl_regs_memmap_p); 4558out_iounmap_slim: 4559 iounmap(phba->slim_memmap_p); 4560out: 4561 return error; 4562} 4563 4564/** 4565 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 4566 * @phba: pointer to lpfc hba data structure. 4567 * 4568 * This routine is invoked to unset the PCI device memory space for device 4569 * with SLI-3 interface spec. 4570 **/ 4571static void 4572lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 4573{ 4574 struct pci_dev *pdev; 4575 4576 /* Obtain PCI device reference */ 4577 if (!phba->pcidev) 4578 return; 4579 else 4580 pdev = phba->pcidev; 4581 4582 /* Free coherent DMA memory allocated */ 4583 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 4584 phba->hbqslimp.virt, phba->hbqslimp.phys); 4585 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 4586 phba->slim2p.virt, phba->slim2p.phys); 4587 4588 /* I/O memory unmap */ 4589 iounmap(phba->ctrl_regs_memmap_p); 4590 iounmap(phba->slim_memmap_p); 4591 4592 return; 4593} 4594 4595/** 4596 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 4597 * @phba: pointer to lpfc hba data structure. 4598 * 4599 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 4600 * done and check status. 4601 * 4602 * Return 0 if successful, otherwise -ENODEV. 4603 **/ 4604int 4605lpfc_sli4_post_status_check(struct lpfc_hba *phba) 4606{ 4607 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg, scratchpad; 4608 uint32_t onlnreg0, onlnreg1; 4609 int i, port_error = -ENODEV; 4610 4611 if (!phba->sli4_hba.STAregaddr) 4612 return -ENODEV; 4613 4614 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 4615 for (i = 0; i < 3000; i++) { 4616 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr); 4617 /* Encounter fatal POST error, break out */ 4618 if (bf_get(lpfc_hst_state_perr, &sta_reg)) { 4619 port_error = -ENODEV; 4620 break; 4621 } 4622 if (LPFC_POST_STAGE_ARMFW_READY == 4623 bf_get(lpfc_hst_state_port_status, &sta_reg)) { 4624 port_error = 0; 4625 break; 4626 } 4627 msleep(10); 4628 } 4629 4630 if (port_error) 4631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4632 "1408 Failure HBA POST Status: sta_reg=0x%x, " 4633 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, " 4634 "dl=x%x, pstatus=x%x\n", sta_reg.word0, 4635 bf_get(lpfc_hst_state_perr, &sta_reg), 4636 bf_get(lpfc_hst_state_sfi, &sta_reg), 4637 bf_get(lpfc_hst_state_nip, &sta_reg), 4638 bf_get(lpfc_hst_state_ipc, &sta_reg), 4639 bf_get(lpfc_hst_state_xrom, &sta_reg), 4640 bf_get(lpfc_hst_state_dl, &sta_reg), 4641 bf_get(lpfc_hst_state_port_status, &sta_reg)); 4642 4643 /* Log device information */ 4644 scratchpad.word0 = readl(phba->sli4_hba.SCRATCHPADregaddr); 4645 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4646 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, " 4647 "FeatureL1=0x%x, FeatureL2=0x%x\n", 4648 bf_get(lpfc_scratchpad_chiptype, &scratchpad), 4649 bf_get(lpfc_scratchpad_slirev, &scratchpad), 4650 bf_get(lpfc_scratchpad_featurelevel1, &scratchpad), 4651 bf_get(lpfc_scratchpad_featurelevel2, &scratchpad)); 4652 4653 /* With uncoverable error, log the error message and return error */ 4654 onlnreg0 = readl(phba->sli4_hba.ONLINE0regaddr); 4655 onlnreg1 = readl(phba->sli4_hba.ONLINE1regaddr); 4656 if ((onlnreg0 != LPFC_ONLINE_NERR) || (onlnreg1 != LPFC_ONLINE_NERR)) { 4657 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr); 4658 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr); 4659 if (uerrlo_reg.word0 || uerrhi_reg.word0) { 4660 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4661 "1422 HBA Unrecoverable error: " 4662 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " 4663 "online0_reg=0x%x, online1_reg=0x%x\n", 4664 uerrlo_reg.word0, uerrhi_reg.word0, 4665 onlnreg0, onlnreg1); 4666 } 4667 return -ENODEV; 4668 } 4669 4670 return port_error; 4671} 4672 4673/** 4674 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 4675 * @phba: pointer to lpfc hba data structure. 4676 * 4677 * This routine is invoked to set up SLI4 BAR0 PCI config space register 4678 * memory map. 4679 **/ 4680static void 4681lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba) 4682{ 4683 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 4684 LPFC_UERR_STATUS_LO; 4685 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 4686 LPFC_UERR_STATUS_HI; 4687 phba->sli4_hba.ONLINE0regaddr = phba->sli4_hba.conf_regs_memmap_p + 4688 LPFC_ONLINE0; 4689 phba->sli4_hba.ONLINE1regaddr = phba->sli4_hba.conf_regs_memmap_p + 4690 LPFC_ONLINE1; 4691 phba->sli4_hba.SCRATCHPADregaddr = phba->sli4_hba.conf_regs_memmap_p + 4692 LPFC_SCRATCHPAD; 4693} 4694 4695/** 4696 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 4697 * @phba: pointer to lpfc hba data structure. 4698 * 4699 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 4700 * memory map. 4701 **/ 4702static void 4703lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 4704{ 4705 4706 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4707 LPFC_HST_STATE; 4708 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4709 LPFC_HST_ISR0; 4710 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4711 LPFC_HST_IMR0; 4712 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4713 LPFC_HST_ISCR0; 4714 return; 4715} 4716 4717/** 4718 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 4719 * @phba: pointer to lpfc hba data structure. 4720 * @vf: virtual function number 4721 * 4722 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 4723 * based on the given viftual function number, @vf. 4724 * 4725 * Return 0 if successful, otherwise -ENODEV. 4726 **/ 4727static int 4728lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 4729{ 4730 if (vf > LPFC_VIR_FUNC_MAX) 4731 return -ENODEV; 4732 4733 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4734 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 4735 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4736 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 4737 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4738 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 4739 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4740 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 4741 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4742 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 4743 return 0; 4744} 4745 4746/** 4747 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 4748 * @phba: pointer to lpfc hba data structure. 4749 * 4750 * This routine is invoked to create the bootstrap mailbox 4751 * region consistent with the SLI-4 interface spec. This 4752 * routine allocates all memory necessary to communicate 4753 * mailbox commands to the port and sets up all alignment 4754 * needs. No locks are expected to be held when calling 4755 * this routine. 4756 * 4757 * Return codes 4758 * 0 - sucessful 4759 * ENOMEM - could not allocated memory. 4760 **/ 4761static int 4762lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 4763{ 4764 uint32_t bmbx_size; 4765 struct lpfc_dmabuf *dmabuf; 4766 struct dma_address *dma_address; 4767 uint32_t pa_addr; 4768 uint64_t phys_addr; 4769 4770 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4771 if (!dmabuf) 4772 return -ENOMEM; 4773 4774 /* 4775 * The bootstrap mailbox region is comprised of 2 parts 4776 * plus an alignment restriction of 16 bytes. 4777 */ 4778 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 4779 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4780 bmbx_size, 4781 &dmabuf->phys, 4782 GFP_KERNEL); 4783 if (!dmabuf->virt) { 4784 kfree(dmabuf); 4785 return -ENOMEM; 4786 } 4787 memset(dmabuf->virt, 0, bmbx_size); 4788 4789 /* 4790 * Initialize the bootstrap mailbox pointers now so that the register 4791 * operations are simple later. The mailbox dma address is required 4792 * to be 16-byte aligned. Also align the virtual memory as each 4793 * maibox is copied into the bmbx mailbox region before issuing the 4794 * command to the port. 4795 */ 4796 phba->sli4_hba.bmbx.dmabuf = dmabuf; 4797 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 4798 4799 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 4800 LPFC_ALIGN_16_BYTE); 4801 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 4802 LPFC_ALIGN_16_BYTE); 4803 4804 /* 4805 * Set the high and low physical addresses now. The SLI4 alignment 4806 * requirement is 16 bytes and the mailbox is posted to the port 4807 * as two 30-bit addresses. The other data is a bit marking whether 4808 * the 30-bit address is the high or low address. 4809 * Upcast bmbx aphys to 64bits so shift instruction compiles 4810 * clean on 32 bit machines. 4811 */ 4812 dma_address = &phba->sli4_hba.bmbx.dma_address; 4813 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 4814 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 4815 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 4816 LPFC_BMBX_BIT1_ADDR_HI); 4817 4818 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 4819 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 4820 LPFC_BMBX_BIT1_ADDR_LO); 4821 return 0; 4822} 4823 4824/** 4825 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 4826 * @phba: pointer to lpfc hba data structure. 4827 * 4828 * This routine is invoked to teardown the bootstrap mailbox 4829 * region and release all host resources. This routine requires 4830 * the caller to ensure all mailbox commands recovered, no 4831 * additional mailbox comands are sent, and interrupts are disabled 4832 * before calling this routine. 4833 * 4834 **/ 4835static void 4836lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 4837{ 4838 dma_free_coherent(&phba->pcidev->dev, 4839 phba->sli4_hba.bmbx.bmbx_size, 4840 phba->sli4_hba.bmbx.dmabuf->virt, 4841 phba->sli4_hba.bmbx.dmabuf->phys); 4842 4843 kfree(phba->sli4_hba.bmbx.dmabuf); 4844 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 4845} 4846 4847/** 4848 * lpfc_sli4_read_config - Get the config parameters. 4849 * @phba: pointer to lpfc hba data structure. 4850 * 4851 * This routine is invoked to read the configuration parameters from the HBA. 4852 * The configuration parameters are used to set the base and maximum values 4853 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 4854 * allocation for the port. 4855 * 4856 * Return codes 4857 * 0 - sucessful 4858 * ENOMEM - No availble memory 4859 * EIO - The mailbox failed to complete successfully. 4860 **/ 4861static int 4862lpfc_sli4_read_config(struct lpfc_hba *phba) 4863{ 4864 LPFC_MBOXQ_t *pmb; 4865 struct lpfc_mbx_read_config *rd_config; 4866 uint32_t rc = 0; 4867 4868 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4869 if (!pmb) { 4870 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4871 "2011 Unable to allocate memory for issuing " 4872 "SLI_CONFIG_SPECIAL mailbox command\n"); 4873 return -ENOMEM; 4874 } 4875 4876 lpfc_read_config(phba, pmb); 4877 4878 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 4879 if (rc != MBX_SUCCESS) { 4880 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4881 "2012 Mailbox failed , mbxCmd x%x " 4882 "READ_CONFIG, mbxStatus x%x\n", 4883 bf_get(lpfc_mqe_command, &pmb->u.mqe), 4884 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 4885 rc = -EIO; 4886 } else { 4887 rd_config = &pmb->u.mqe.un.rd_config; 4888 phba->sli4_hba.max_cfg_param.max_xri = 4889 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 4890 phba->sli4_hba.max_cfg_param.xri_base = 4891 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 4892 phba->sli4_hba.max_cfg_param.max_vpi = 4893 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 4894 phba->sli4_hba.max_cfg_param.vpi_base = 4895 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 4896 phba->sli4_hba.max_cfg_param.max_rpi = 4897 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 4898 phba->sli4_hba.max_cfg_param.rpi_base = 4899 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 4900 phba->sli4_hba.max_cfg_param.max_vfi = 4901 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 4902 phba->sli4_hba.max_cfg_param.vfi_base = 4903 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 4904 phba->sli4_hba.max_cfg_param.max_fcfi = 4905 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 4906 phba->sli4_hba.max_cfg_param.fcfi_base = 4907 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config); 4908 phba->sli4_hba.max_cfg_param.max_eq = 4909 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 4910 phba->sli4_hba.max_cfg_param.max_rq = 4911 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 4912 phba->sli4_hba.max_cfg_param.max_wq = 4913 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 4914 phba->sli4_hba.max_cfg_param.max_cq = 4915 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 4916 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 4917 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 4918 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 4919 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 4920 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4921 phba->max_vpi = phba->sli4_hba.max_cfg_param.max_vpi; 4922 phba->max_vports = phba->max_vpi; 4923 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4924 "2003 cfg params XRI(B:%d M:%d), " 4925 "VPI(B:%d M:%d) " 4926 "VFI(B:%d M:%d) " 4927 "RPI(B:%d M:%d) " 4928 "FCFI(B:%d M:%d)\n", 4929 phba->sli4_hba.max_cfg_param.xri_base, 4930 phba->sli4_hba.max_cfg_param.max_xri, 4931 phba->sli4_hba.max_cfg_param.vpi_base, 4932 phba->sli4_hba.max_cfg_param.max_vpi, 4933 phba->sli4_hba.max_cfg_param.vfi_base, 4934 phba->sli4_hba.max_cfg_param.max_vfi, 4935 phba->sli4_hba.max_cfg_param.rpi_base, 4936 phba->sli4_hba.max_cfg_param.max_rpi, 4937 phba->sli4_hba.max_cfg_param.fcfi_base, 4938 phba->sli4_hba.max_cfg_param.max_fcfi); 4939 } 4940 mempool_free(pmb, phba->mbox_mem_pool); 4941 4942 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 4943 if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri)) 4944 phba->cfg_hba_queue_depth = 4945 phba->sli4_hba.max_cfg_param.max_xri; 4946 return rc; 4947} 4948 4949/** 4950 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order. 4951 * @phba: pointer to lpfc hba data structure. 4952 * 4953 * This routine is invoked to setup the host-side endian order to the 4954 * HBA consistent with the SLI-4 interface spec. 4955 * 4956 * Return codes 4957 * 0 - sucessful 4958 * ENOMEM - No availble memory 4959 * EIO - The mailbox failed to complete successfully. 4960 **/ 4961static int 4962lpfc_setup_endian_order(struct lpfc_hba *phba) 4963{ 4964 LPFC_MBOXQ_t *mboxq; 4965 uint32_t rc = 0; 4966 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 4967 HOST_ENDIAN_HIGH_WORD1}; 4968 4969 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4970 if (!mboxq) { 4971 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4972 "0492 Unable to allocate memory for issuing " 4973 "SLI_CONFIG_SPECIAL mailbox command\n"); 4974 return -ENOMEM; 4975 } 4976 4977 /* 4978 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two 4979 * words to contain special data values and no other data. 4980 */ 4981 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 4982 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 4983 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4984 if (rc != MBX_SUCCESS) { 4985 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4986 "0493 SLI_CONFIG_SPECIAL mailbox failed with " 4987 "status x%x\n", 4988 rc); 4989 rc = -EIO; 4990 } 4991 4992 mempool_free(mboxq, phba->mbox_mem_pool); 4993 return rc; 4994} 4995 4996/** 4997 * lpfc_sli4_queue_create - Create all the SLI4 queues 4998 * @phba: pointer to lpfc hba data structure. 4999 * 5000 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 5001 * operation. For each SLI4 queue type, the parameters such as queue entry 5002 * count (queue depth) shall be taken from the module parameter. For now, 5003 * we just use some constant number as place holder. 5004 * 5005 * Return codes 5006 * 0 - sucessful 5007 * ENOMEM - No availble memory 5008 * EIO - The mailbox failed to complete successfully. 5009 **/ 5010static int 5011lpfc_sli4_queue_create(struct lpfc_hba *phba) 5012{ 5013 struct lpfc_queue *qdesc; 5014 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5015 int cfg_fcp_wq_count; 5016 int cfg_fcp_eq_count; 5017 5018 /* 5019 * Sanity check for confiugred queue parameters against the run-time 5020 * device parameters 5021 */ 5022 5023 /* Sanity check on FCP fast-path WQ parameters */ 5024 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 5025 if (cfg_fcp_wq_count > 5026 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 5027 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 5028 LPFC_SP_WQN_DEF; 5029 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 5030 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5031 "2581 Not enough WQs (%d) from " 5032 "the pci function for supporting " 5033 "FCP WQs (%d)\n", 5034 phba->sli4_hba.max_cfg_param.max_wq, 5035 phba->cfg_fcp_wq_count); 5036 goto out_error; 5037 } 5038 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5039 "2582 Not enough WQs (%d) from the pci " 5040 "function for supporting the requested " 5041 "FCP WQs (%d), the actual FCP WQs can " 5042 "be supported: %d\n", 5043 phba->sli4_hba.max_cfg_param.max_wq, 5044 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 5045 } 5046 /* The actual number of FCP work queues adopted */ 5047 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 5048 5049 /* Sanity check on FCP fast-path EQ parameters */ 5050 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 5051 if (cfg_fcp_eq_count > 5052 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 5053 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 5054 LPFC_SP_EQN_DEF; 5055 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 5056 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5057 "2574 Not enough EQs (%d) from the " 5058 "pci function for supporting FCP " 5059 "EQs (%d)\n", 5060 phba->sli4_hba.max_cfg_param.max_eq, 5061 phba->cfg_fcp_eq_count); 5062 goto out_error; 5063 } 5064 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5065 "2575 Not enough EQs (%d) from the pci " 5066 "function for supporting the requested " 5067 "FCP EQs (%d), the actual FCP EQs can " 5068 "be supported: %d\n", 5069 phba->sli4_hba.max_cfg_param.max_eq, 5070 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 5071 } 5072 /* It does not make sense to have more EQs than WQs */ 5073 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 5074 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5075 "2593 The number of FCP EQs (%d) is more " 5076 "than the number of FCP WQs (%d), take " 5077 "the number of FCP EQs same as than of " 5078 "WQs (%d)\n", cfg_fcp_eq_count, 5079 phba->cfg_fcp_wq_count, 5080 phba->cfg_fcp_wq_count); 5081 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 5082 } 5083 /* The actual number of FCP event queues adopted */ 5084 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 5085 /* The overall number of event queues used */ 5086 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 5087 5088 /* 5089 * Create Event Queues (EQs) 5090 */ 5091 5092 /* Get EQ depth from module parameter, fake the default for now */ 5093 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 5094 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 5095 5096 /* Create slow path event queue */ 5097 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5098 phba->sli4_hba.eq_ecount); 5099 if (!qdesc) { 5100 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5101 "0496 Failed allocate slow-path EQ\n"); 5102 goto out_error; 5103 } 5104 phba->sli4_hba.sp_eq = qdesc; 5105 5106 /* Create fast-path FCP Event Queue(s) */ 5107 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 5108 phba->cfg_fcp_eq_count), GFP_KERNEL); 5109 if (!phba->sli4_hba.fp_eq) { 5110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5111 "2576 Failed allocate memory for fast-path " 5112 "EQ record array\n"); 5113 goto out_free_sp_eq; 5114 } 5115 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5116 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5117 phba->sli4_hba.eq_ecount); 5118 if (!qdesc) { 5119 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5120 "0497 Failed allocate fast-path EQ\n"); 5121 goto out_free_fp_eq; 5122 } 5123 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 5124 } 5125 5126 /* 5127 * Create Complete Queues (CQs) 5128 */ 5129 5130 /* Get CQ depth from module parameter, fake the default for now */ 5131 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 5132 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 5133 5134 /* Create slow-path Mailbox Command Complete Queue */ 5135 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5136 phba->sli4_hba.cq_ecount); 5137 if (!qdesc) { 5138 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5139 "0500 Failed allocate slow-path mailbox CQ\n"); 5140 goto out_free_fp_eq; 5141 } 5142 phba->sli4_hba.mbx_cq = qdesc; 5143 5144 /* Create slow-path ELS Complete Queue */ 5145 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5146 phba->sli4_hba.cq_ecount); 5147 if (!qdesc) { 5148 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5149 "0501 Failed allocate slow-path ELS CQ\n"); 5150 goto out_free_mbx_cq; 5151 } 5152 phba->sli4_hba.els_cq = qdesc; 5153 5154 5155 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ 5156 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 5157 phba->cfg_fcp_eq_count), GFP_KERNEL); 5158 if (!phba->sli4_hba.fcp_cq) { 5159 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5160 "2577 Failed allocate memory for fast-path " 5161 "CQ record array\n"); 5162 goto out_free_els_cq; 5163 } 5164 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5165 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5166 phba->sli4_hba.cq_ecount); 5167 if (!qdesc) { 5168 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5169 "0499 Failed allocate fast-path FCP " 5170 "CQ (%d)\n", fcp_cqidx); 5171 goto out_free_fcp_cq; 5172 } 5173 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 5174 } 5175 5176 /* Create Mailbox Command Queue */ 5177 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 5178 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 5179 5180 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 5181 phba->sli4_hba.mq_ecount); 5182 if (!qdesc) { 5183 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5184 "0505 Failed allocate slow-path MQ\n"); 5185 goto out_free_fcp_cq; 5186 } 5187 phba->sli4_hba.mbx_wq = qdesc; 5188 5189 /* 5190 * Create all the Work Queues (WQs) 5191 */ 5192 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 5193 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 5194 5195 /* Create slow-path ELS Work Queue */ 5196 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5197 phba->sli4_hba.wq_ecount); 5198 if (!qdesc) { 5199 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5200 "0504 Failed allocate slow-path ELS WQ\n"); 5201 goto out_free_mbx_wq; 5202 } 5203 phba->sli4_hba.els_wq = qdesc; 5204 5205 /* Create fast-path FCP Work Queue(s) */ 5206 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 5207 phba->cfg_fcp_wq_count), GFP_KERNEL); 5208 if (!phba->sli4_hba.fcp_wq) { 5209 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5210 "2578 Failed allocate memory for fast-path " 5211 "WQ record array\n"); 5212 goto out_free_els_wq; 5213 } 5214 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5215 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5216 phba->sli4_hba.wq_ecount); 5217 if (!qdesc) { 5218 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5219 "0503 Failed allocate fast-path FCP " 5220 "WQ (%d)\n", fcp_wqidx); 5221 goto out_free_fcp_wq; 5222 } 5223 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 5224 } 5225 5226 /* 5227 * Create Receive Queue (RQ) 5228 */ 5229 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 5230 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 5231 5232 /* Create Receive Queue for header */ 5233 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5234 phba->sli4_hba.rq_ecount); 5235 if (!qdesc) { 5236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5237 "0506 Failed allocate receive HRQ\n"); 5238 goto out_free_fcp_wq; 5239 } 5240 phba->sli4_hba.hdr_rq = qdesc; 5241 5242 /* Create Receive Queue for data */ 5243 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5244 phba->sli4_hba.rq_ecount); 5245 if (!qdesc) { 5246 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5247 "0507 Failed allocate receive DRQ\n"); 5248 goto out_free_hdr_rq; 5249 } 5250 phba->sli4_hba.dat_rq = qdesc; 5251 5252 return 0; 5253 5254out_free_hdr_rq: 5255 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5256 phba->sli4_hba.hdr_rq = NULL; 5257out_free_fcp_wq: 5258 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 5259 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 5260 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 5261 } 5262 kfree(phba->sli4_hba.fcp_wq); 5263out_free_els_wq: 5264 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5265 phba->sli4_hba.els_wq = NULL; 5266out_free_mbx_wq: 5267 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5268 phba->sli4_hba.mbx_wq = NULL; 5269out_free_fcp_cq: 5270 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 5271 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 5272 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 5273 } 5274 kfree(phba->sli4_hba.fcp_cq); 5275out_free_els_cq: 5276 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5277 phba->sli4_hba.els_cq = NULL; 5278out_free_mbx_cq: 5279 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5280 phba->sli4_hba.mbx_cq = NULL; 5281out_free_fp_eq: 5282 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 5283 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 5284 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 5285 } 5286 kfree(phba->sli4_hba.fp_eq); 5287out_free_sp_eq: 5288 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5289 phba->sli4_hba.sp_eq = NULL; 5290out_error: 5291 return -ENOMEM; 5292} 5293 5294/** 5295 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 5296 * @phba: pointer to lpfc hba data structure. 5297 * 5298 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 5299 * operation. 5300 * 5301 * Return codes 5302 * 0 - sucessful 5303 * ENOMEM - No availble memory 5304 * EIO - The mailbox failed to complete successfully. 5305 **/ 5306static void 5307lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 5308{ 5309 int fcp_qidx; 5310 5311 /* Release mailbox command work queue */ 5312 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5313 phba->sli4_hba.mbx_wq = NULL; 5314 5315 /* Release ELS work queue */ 5316 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5317 phba->sli4_hba.els_wq = NULL; 5318 5319 /* Release FCP work queue */ 5320 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5321 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 5322 kfree(phba->sli4_hba.fcp_wq); 5323 phba->sli4_hba.fcp_wq = NULL; 5324 5325 /* Release unsolicited receive queue */ 5326 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5327 phba->sli4_hba.hdr_rq = NULL; 5328 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 5329 phba->sli4_hba.dat_rq = NULL; 5330 5331 /* Release ELS complete queue */ 5332 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5333 phba->sli4_hba.els_cq = NULL; 5334 5335 /* Release mailbox command complete queue */ 5336 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5337 phba->sli4_hba.mbx_cq = NULL; 5338 5339 /* Release FCP response complete queue */ 5340 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5341 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 5342 kfree(phba->sli4_hba.fcp_cq); 5343 phba->sli4_hba.fcp_cq = NULL; 5344 5345 /* Release fast-path event queue */ 5346 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5347 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 5348 kfree(phba->sli4_hba.fp_eq); 5349 phba->sli4_hba.fp_eq = NULL; 5350 5351 /* Release slow-path event queue */ 5352 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5353 phba->sli4_hba.sp_eq = NULL; 5354 5355 return; 5356} 5357 5358/** 5359 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 5360 * @phba: pointer to lpfc hba data structure. 5361 * 5362 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 5363 * operation. 5364 * 5365 * Return codes 5366 * 0 - sucessful 5367 * ENOMEM - No availble memory 5368 * EIO - The mailbox failed to complete successfully. 5369 **/ 5370int 5371lpfc_sli4_queue_setup(struct lpfc_hba *phba) 5372{ 5373 int rc = -ENOMEM; 5374 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5375 int fcp_cq_index = 0; 5376 5377 /* 5378 * Set up Event Queues (EQs) 5379 */ 5380 5381 /* Set up slow-path event queue */ 5382 if (!phba->sli4_hba.sp_eq) { 5383 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5384 "0520 Slow-path EQ not allocated\n"); 5385 goto out_error; 5386 } 5387 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 5388 LPFC_SP_DEF_IMAX); 5389 if (rc) { 5390 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5391 "0521 Failed setup of slow-path EQ: " 5392 "rc = 0x%x\n", rc); 5393 goto out_error; 5394 } 5395 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5396 "2583 Slow-path EQ setup: queue-id=%d\n", 5397 phba->sli4_hba.sp_eq->queue_id); 5398 5399 /* Set up fast-path event queue */ 5400 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5401 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 5402 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5403 "0522 Fast-path EQ (%d) not " 5404 "allocated\n", fcp_eqidx); 5405 goto out_destroy_fp_eq; 5406 } 5407 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 5408 phba->cfg_fcp_imax); 5409 if (rc) { 5410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5411 "0523 Failed setup of fast-path EQ " 5412 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 5413 goto out_destroy_fp_eq; 5414 } 5415 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5416 "2584 Fast-path EQ setup: " 5417 "queue[%d]-id=%d\n", fcp_eqidx, 5418 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 5419 } 5420 5421 /* 5422 * Set up Complete Queues (CQs) 5423 */ 5424 5425 /* Set up slow-path MBOX Complete Queue as the first CQ */ 5426 if (!phba->sli4_hba.mbx_cq) { 5427 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5428 "0528 Mailbox CQ not allocated\n"); 5429 goto out_destroy_fp_eq; 5430 } 5431 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 5432 LPFC_MCQ, LPFC_MBOX); 5433 if (rc) { 5434 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5435 "0529 Failed setup of slow-path mailbox CQ: " 5436 "rc = 0x%x\n", rc); 5437 goto out_destroy_fp_eq; 5438 } 5439 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5440 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 5441 phba->sli4_hba.mbx_cq->queue_id, 5442 phba->sli4_hba.sp_eq->queue_id); 5443 5444 /* Set up slow-path ELS Complete Queue */ 5445 if (!phba->sli4_hba.els_cq) { 5446 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5447 "0530 ELS CQ not allocated\n"); 5448 goto out_destroy_mbx_cq; 5449 } 5450 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 5451 LPFC_WCQ, LPFC_ELS); 5452 if (rc) { 5453 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5454 "0531 Failed setup of slow-path ELS CQ: " 5455 "rc = 0x%x\n", rc); 5456 goto out_destroy_mbx_cq; 5457 } 5458 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5459 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 5460 phba->sli4_hba.els_cq->queue_id, 5461 phba->sli4_hba.sp_eq->queue_id); 5462 5463 /* Set up fast-path FCP Response Complete Queue */ 5464 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5465 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 5466 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5467 "0526 Fast-path FCP CQ (%d) not " 5468 "allocated\n", fcp_cqidx); 5469 goto out_destroy_fcp_cq; 5470 } 5471 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 5472 phba->sli4_hba.fp_eq[fcp_cqidx], 5473 LPFC_WCQ, LPFC_FCP); 5474 if (rc) { 5475 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5476 "0527 Failed setup of fast-path FCP " 5477 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 5478 goto out_destroy_fcp_cq; 5479 } 5480 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5481 "2588 FCP CQ setup: cq[%d]-id=%d, " 5482 "parent eq[%d]-id=%d\n", 5483 fcp_cqidx, 5484 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 5485 fcp_cqidx, 5486 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id); 5487 } 5488 5489 /* 5490 * Set up all the Work Queues (WQs) 5491 */ 5492 5493 /* Set up Mailbox Command Queue */ 5494 if (!phba->sli4_hba.mbx_wq) { 5495 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5496 "0538 Slow-path MQ not allocated\n"); 5497 goto out_destroy_fcp_cq; 5498 } 5499 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 5500 phba->sli4_hba.mbx_cq, LPFC_MBOX); 5501 if (rc) { 5502 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5503 "0539 Failed setup of slow-path MQ: " 5504 "rc = 0x%x\n", rc); 5505 goto out_destroy_fcp_cq; 5506 } 5507 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5508 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 5509 phba->sli4_hba.mbx_wq->queue_id, 5510 phba->sli4_hba.mbx_cq->queue_id); 5511 5512 /* Set up slow-path ELS Work Queue */ 5513 if (!phba->sli4_hba.els_wq) { 5514 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5515 "0536 Slow-path ELS WQ not allocated\n"); 5516 goto out_destroy_mbx_wq; 5517 } 5518 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 5519 phba->sli4_hba.els_cq, LPFC_ELS); 5520 if (rc) { 5521 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5522 "0537 Failed setup of slow-path ELS WQ: " 5523 "rc = 0x%x\n", rc); 5524 goto out_destroy_mbx_wq; 5525 } 5526 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5527 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 5528 phba->sli4_hba.els_wq->queue_id, 5529 phba->sli4_hba.els_cq->queue_id); 5530 5531 /* Set up fast-path FCP Work Queue */ 5532 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5533 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 5534 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5535 "0534 Fast-path FCP WQ (%d) not " 5536 "allocated\n", fcp_wqidx); 5537 goto out_destroy_fcp_wq; 5538 } 5539 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 5540 phba->sli4_hba.fcp_cq[fcp_cq_index], 5541 LPFC_FCP); 5542 if (rc) { 5543 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5544 "0535 Failed setup of fast-path FCP " 5545 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 5546 goto out_destroy_fcp_wq; 5547 } 5548 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5549 "2591 FCP WQ setup: wq[%d]-id=%d, " 5550 "parent cq[%d]-id=%d\n", 5551 fcp_wqidx, 5552 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 5553 fcp_cq_index, 5554 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 5555 /* Round robin FCP Work Queue's Completion Queue assignment */ 5556 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count); 5557 } 5558 5559 /* 5560 * Create Receive Queue (RQ) 5561 */ 5562 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 5563 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5564 "0540 Receive Queue not allocated\n"); 5565 goto out_destroy_fcp_wq; 5566 } 5567 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 5568 phba->sli4_hba.els_cq, LPFC_USOL); 5569 if (rc) { 5570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5571 "0541 Failed setup of Receive Queue: " 5572 "rc = 0x%x\n", rc); 5573 goto out_destroy_fcp_wq; 5574 } 5575 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5576 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 5577 "parent cq-id=%d\n", 5578 phba->sli4_hba.hdr_rq->queue_id, 5579 phba->sli4_hba.dat_rq->queue_id, 5580 phba->sli4_hba.els_cq->queue_id); 5581 return 0; 5582 5583out_destroy_fcp_wq: 5584 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 5585 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 5586 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 5587out_destroy_mbx_wq: 5588 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 5589out_destroy_fcp_cq: 5590 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 5591 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 5592 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 5593out_destroy_mbx_cq: 5594 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 5595out_destroy_fp_eq: 5596 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 5597 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 5598 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 5599out_error: 5600 return rc; 5601} 5602 5603/** 5604 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 5605 * @phba: pointer to lpfc hba data structure. 5606 * 5607 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 5608 * operation. 5609 * 5610 * Return codes 5611 * 0 - sucessful 5612 * ENOMEM - No availble memory 5613 * EIO - The mailbox failed to complete successfully. 5614 **/ 5615void 5616lpfc_sli4_queue_unset(struct lpfc_hba *phba) 5617{ 5618 int fcp_qidx; 5619 5620 /* Unset mailbox command work queue */ 5621 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 5622 /* Unset ELS work queue */ 5623 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 5624 /* Unset unsolicited receive queue */ 5625 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 5626 /* Unset FCP work queue */ 5627 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5628 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 5629 /* Unset mailbox command complete queue */ 5630 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 5631 /* Unset ELS complete queue */ 5632 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 5633 /* Unset FCP response complete queue */ 5634 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5635 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 5636 /* Unset fast-path event queue */ 5637 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5638 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 5639 /* Unset slow-path event queue */ 5640 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 5641} 5642 5643/** 5644 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 5645 * @phba: pointer to lpfc hba data structure. 5646 * 5647 * This routine is invoked to allocate and set up a pool of completion queue 5648 * events. The body of the completion queue event is a completion queue entry 5649 * CQE. For now, this pool is used for the interrupt service routine to queue 5650 * the following HBA completion queue events for the worker thread to process: 5651 * - Mailbox asynchronous events 5652 * - Receive queue completion unsolicited events 5653 * Later, this can be used for all the slow-path events. 5654 * 5655 * Return codes 5656 * 0 - sucessful 5657 * -ENOMEM - No availble memory 5658 **/ 5659static int 5660lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 5661{ 5662 struct lpfc_cq_event *cq_event; 5663 int i; 5664 5665 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 5666 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 5667 if (!cq_event) 5668 goto out_pool_create_fail; 5669 list_add_tail(&cq_event->list, 5670 &phba->sli4_hba.sp_cqe_event_pool); 5671 } 5672 return 0; 5673 5674out_pool_create_fail: 5675 lpfc_sli4_cq_event_pool_destroy(phba); 5676 return -ENOMEM; 5677} 5678 5679/** 5680 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 5681 * @phba: pointer to lpfc hba data structure. 5682 * 5683 * This routine is invoked to free the pool of completion queue events at 5684 * driver unload time. Note that, it is the responsibility of the driver 5685 * cleanup routine to free all the outstanding completion-queue events 5686 * allocated from this pool back into the pool before invoking this routine 5687 * to destroy the pool. 5688 **/ 5689static void 5690lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 5691{ 5692 struct lpfc_cq_event *cq_event, *next_cq_event; 5693 5694 list_for_each_entry_safe(cq_event, next_cq_event, 5695 &phba->sli4_hba.sp_cqe_event_pool, list) { 5696 list_del(&cq_event->list); 5697 kfree(cq_event); 5698 } 5699} 5700 5701/** 5702 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 5703 * @phba: pointer to lpfc hba data structure. 5704 * 5705 * This routine is the lock free version of the API invoked to allocate a 5706 * completion-queue event from the free pool. 5707 * 5708 * Return: Pointer to the newly allocated completion-queue event if successful 5709 * NULL otherwise. 5710 **/ 5711struct lpfc_cq_event * 5712__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 5713{ 5714 struct lpfc_cq_event *cq_event = NULL; 5715 5716 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 5717 struct lpfc_cq_event, list); 5718 return cq_event; 5719} 5720 5721/** 5722 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 5723 * @phba: pointer to lpfc hba data structure. 5724 * 5725 * This routine is the lock version of the API invoked to allocate a 5726 * completion-queue event from the free pool. 5727 * 5728 * Return: Pointer to the newly allocated completion-queue event if successful 5729 * NULL otherwise. 5730 **/ 5731struct lpfc_cq_event * 5732lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 5733{ 5734 struct lpfc_cq_event *cq_event; 5735 unsigned long iflags; 5736 5737 spin_lock_irqsave(&phba->hbalock, iflags); 5738 cq_event = __lpfc_sli4_cq_event_alloc(phba); 5739 spin_unlock_irqrestore(&phba->hbalock, iflags); 5740 return cq_event; 5741} 5742 5743/** 5744 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 5745 * @phba: pointer to lpfc hba data structure. 5746 * @cq_event: pointer to the completion queue event to be freed. 5747 * 5748 * This routine is the lock free version of the API invoked to release a 5749 * completion-queue event back into the free pool. 5750 **/ 5751void 5752__lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 5753 struct lpfc_cq_event *cq_event) 5754{ 5755 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 5756} 5757 5758/** 5759 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 5760 * @phba: pointer to lpfc hba data structure. 5761 * @cq_event: pointer to the completion queue event to be freed. 5762 * 5763 * This routine is the lock version of the API invoked to release a 5764 * completion-queue event back into the free pool. 5765 **/ 5766void 5767lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 5768 struct lpfc_cq_event *cq_event) 5769{ 5770 unsigned long iflags; 5771 spin_lock_irqsave(&phba->hbalock, iflags); 5772 __lpfc_sli4_cq_event_release(phba, cq_event); 5773 spin_unlock_irqrestore(&phba->hbalock, iflags); 5774} 5775 5776/** 5777 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 5778 * @phba: pointer to lpfc hba data structure. 5779 * 5780 * This routine is to free all the pending completion-queue events to the 5781 * back into the free pool for device reset. 5782 **/ 5783static void 5784lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 5785{ 5786 LIST_HEAD(cqelist); 5787 struct lpfc_cq_event *cqe; 5788 unsigned long iflags; 5789 5790 /* Retrieve all the pending WCQEs from pending WCQE lists */ 5791 spin_lock_irqsave(&phba->hbalock, iflags); 5792 /* Pending FCP XRI abort events */ 5793 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 5794 &cqelist); 5795 /* Pending ELS XRI abort events */ 5796 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 5797 &cqelist); 5798 /* Pending asynnc events */ 5799 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 5800 &cqelist); 5801 spin_unlock_irqrestore(&phba->hbalock, iflags); 5802 5803 while (!list_empty(&cqelist)) { 5804 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 5805 lpfc_sli4_cq_event_release(phba, cqe); 5806 } 5807} 5808 5809/** 5810 * lpfc_pci_function_reset - Reset pci function. 5811 * @phba: pointer to lpfc hba data structure. 5812 * 5813 * This routine is invoked to request a PCI function reset. It will destroys 5814 * all resources assigned to the PCI function which originates this request. 5815 * 5816 * Return codes 5817 * 0 - sucessful 5818 * ENOMEM - No availble memory 5819 * EIO - The mailbox failed to complete successfully. 5820 **/ 5821int 5822lpfc_pci_function_reset(struct lpfc_hba *phba) 5823{ 5824 LPFC_MBOXQ_t *mboxq; 5825 uint32_t rc = 0; 5826 uint32_t shdr_status, shdr_add_status; 5827 union lpfc_sli4_cfg_shdr *shdr; 5828 5829 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5830 if (!mboxq) { 5831 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5832 "0494 Unable to allocate memory for issuing " 5833 "SLI_FUNCTION_RESET mailbox command\n"); 5834 return -ENOMEM; 5835 } 5836 5837 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */ 5838 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 5839 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 5840 LPFC_SLI4_MBX_EMBED); 5841 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5842 shdr = (union lpfc_sli4_cfg_shdr *) 5843 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 5844 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 5845 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 5846 if (rc != MBX_TIMEOUT) 5847 mempool_free(mboxq, phba->mbox_mem_pool); 5848 if (shdr_status || shdr_add_status || rc) { 5849 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5850 "0495 SLI_FUNCTION_RESET mailbox failed with " 5851 "status x%x add_status x%x, mbx status x%x\n", 5852 shdr_status, shdr_add_status, rc); 5853 rc = -ENXIO; 5854 } 5855 return rc; 5856} 5857 5858/** 5859 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 5860 * @phba: pointer to lpfc hba data structure. 5861 * @cnt: number of nop mailbox commands to send. 5862 * 5863 * This routine is invoked to send a number @cnt of NOP mailbox command and 5864 * wait for each command to complete. 5865 * 5866 * Return: the number of NOP mailbox command completed. 5867 **/ 5868static int 5869lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 5870{ 5871 LPFC_MBOXQ_t *mboxq; 5872 int length, cmdsent; 5873 uint32_t mbox_tmo; 5874 uint32_t rc = 0; 5875 uint32_t shdr_status, shdr_add_status; 5876 union lpfc_sli4_cfg_shdr *shdr; 5877 5878 if (cnt == 0) { 5879 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5880 "2518 Requested to send 0 NOP mailbox cmd\n"); 5881 return cnt; 5882 } 5883 5884 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5885 if (!mboxq) { 5886 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5887 "2519 Unable to allocate memory for issuing " 5888 "NOP mailbox command\n"); 5889 return 0; 5890 } 5891 5892 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 5893 length = (sizeof(struct lpfc_mbx_nop) - 5894 sizeof(struct lpfc_sli4_cfg_mhdr)); 5895 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 5896 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 5897 5898 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 5899 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 5900 if (!phba->sli4_hba.intr_enable) 5901 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5902 else 5903 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 5904 if (rc == MBX_TIMEOUT) 5905 break; 5906 /* Check return status */ 5907 shdr = (union lpfc_sli4_cfg_shdr *) 5908 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 5909 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 5910 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 5911 &shdr->response); 5912 if (shdr_status || shdr_add_status || rc) { 5913 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5914 "2520 NOP mailbox command failed " 5915 "status x%x add_status x%x mbx " 5916 "status x%x\n", shdr_status, 5917 shdr_add_status, rc); 5918 break; 5919 } 5920 } 5921 5922 if (rc != MBX_TIMEOUT) 5923 mempool_free(mboxq, phba->mbox_mem_pool); 5924 5925 return cmdsent; 5926} 5927 5928/** 5929 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device 5930 * @phba: pointer to lpfc hba data structure. 5931 * @fcfi: fcf index. 5932 * 5933 * This routine is invoked to unregister a FCFI from device. 5934 **/ 5935void 5936lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi) 5937{ 5938 LPFC_MBOXQ_t *mbox; 5939 uint32_t mbox_tmo; 5940 int rc; 5941 unsigned long flags; 5942 5943 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5944 5945 if (!mbox) 5946 return; 5947 5948 lpfc_unreg_fcfi(mbox, fcfi); 5949 5950 if (!phba->sli4_hba.intr_enable) 5951 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 5952 else { 5953 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 5954 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); 5955 } 5956 if (rc != MBX_TIMEOUT) 5957 mempool_free(mbox, phba->mbox_mem_pool); 5958 if (rc != MBX_SUCCESS) 5959 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5960 "2517 Unregister FCFI command failed " 5961 "status %d, mbxStatus x%x\n", rc, 5962 bf_get(lpfc_mqe_status, &mbox->u.mqe)); 5963 else { 5964 spin_lock_irqsave(&phba->hbalock, flags); 5965 /* Mark the FCFI is no longer registered */ 5966 phba->fcf.fcf_flag &= 5967 ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_DISCOVERED); 5968 spin_unlock_irqrestore(&phba->hbalock, flags); 5969 } 5970} 5971 5972/** 5973 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 5974 * @phba: pointer to lpfc hba data structure. 5975 * 5976 * This routine is invoked to set up the PCI device memory space for device 5977 * with SLI-4 interface spec. 5978 * 5979 * Return codes 5980 * 0 - sucessful 5981 * other values - error 5982 **/ 5983static int 5984lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 5985{ 5986 struct pci_dev *pdev; 5987 unsigned long bar0map_len, bar1map_len, bar2map_len; 5988 int error = -ENODEV; 5989 5990 /* Obtain PCI device reference */ 5991 if (!phba->pcidev) 5992 return error; 5993 else 5994 pdev = phba->pcidev; 5995 5996 /* Set the device DMA mask size */ 5997 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) 5998 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) 5999 return error; 6000 6001 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the 6002 * number of bytes required by each mapping. They are actually 6003 * mapping to the PCI BAR regions 1, 2, and 4 by the SLI4 device. 6004 */ 6005 phba->pci_bar0_map = pci_resource_start(pdev, LPFC_SLI4_BAR0); 6006 bar0map_len = pci_resource_len(pdev, LPFC_SLI4_BAR0); 6007 6008 phba->pci_bar1_map = pci_resource_start(pdev, LPFC_SLI4_BAR1); 6009 bar1map_len = pci_resource_len(pdev, LPFC_SLI4_BAR1); 6010 6011 phba->pci_bar2_map = pci_resource_start(pdev, LPFC_SLI4_BAR2); 6012 bar2map_len = pci_resource_len(pdev, LPFC_SLI4_BAR2); 6013 6014 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */ 6015 phba->sli4_hba.conf_regs_memmap_p = 6016 ioremap(phba->pci_bar0_map, bar0map_len); 6017 if (!phba->sli4_hba.conf_regs_memmap_p) { 6018 dev_printk(KERN_ERR, &pdev->dev, 6019 "ioremap failed for SLI4 PCI config registers.\n"); 6020 goto out; 6021 } 6022 6023 /* Map SLI4 HBA Control Register base to a kernel virtual address. */ 6024 phba->sli4_hba.ctrl_regs_memmap_p = 6025 ioremap(phba->pci_bar1_map, bar1map_len); 6026 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 6027 dev_printk(KERN_ERR, &pdev->dev, 6028 "ioremap failed for SLI4 HBA control registers.\n"); 6029 goto out_iounmap_conf; 6030 } 6031 6032 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */ 6033 phba->sli4_hba.drbl_regs_memmap_p = 6034 ioremap(phba->pci_bar2_map, bar2map_len); 6035 if (!phba->sli4_hba.drbl_regs_memmap_p) { 6036 dev_printk(KERN_ERR, &pdev->dev, 6037 "ioremap failed for SLI4 HBA doorbell registers.\n"); 6038 goto out_iounmap_ctrl; 6039 } 6040 6041 /* Set up BAR0 PCI config space register memory map */ 6042 lpfc_sli4_bar0_register_memmap(phba); 6043 6044 /* Set up BAR1 register memory map */ 6045 lpfc_sli4_bar1_register_memmap(phba); 6046 6047 /* Set up BAR2 register memory map */ 6048 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 6049 if (error) 6050 goto out_iounmap_all; 6051 6052 return 0; 6053 6054out_iounmap_all: 6055 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6056out_iounmap_ctrl: 6057 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6058out_iounmap_conf: 6059 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6060out: 6061 return error; 6062} 6063 6064/** 6065 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 6066 * @phba: pointer to lpfc hba data structure. 6067 * 6068 * This routine is invoked to unset the PCI device memory space for device 6069 * with SLI-4 interface spec. 6070 **/ 6071static void 6072lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 6073{ 6074 struct pci_dev *pdev; 6075 6076 /* Obtain PCI device reference */ 6077 if (!phba->pcidev) 6078 return; 6079 else 6080 pdev = phba->pcidev; 6081 6082 /* Free coherent DMA memory allocated */ 6083 6084 /* Unmap I/O memory space */ 6085 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6086 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6087 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6088 6089 return; 6090} 6091 6092/** 6093 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 6094 * @phba: pointer to lpfc hba data structure. 6095 * 6096 * This routine is invoked to enable the MSI-X interrupt vectors to device 6097 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 6098 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 6099 * invoked, enables either all or nothing, depending on the current 6100 * availability of PCI vector resources. The device driver is responsible 6101 * for calling the individual request_irq() to register each MSI-X vector 6102 * with a interrupt handler, which is done in this function. Note that 6103 * later when device is unloading, the driver should always call free_irq() 6104 * on all MSI-X vectors it has done request_irq() on before calling 6105 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 6106 * will be left with MSI-X enabled and leaks its vectors. 6107 * 6108 * Return codes 6109 * 0 - sucessful 6110 * other values - error 6111 **/ 6112static int 6113lpfc_sli_enable_msix(struct lpfc_hba *phba) 6114{ 6115 int rc, i; 6116 LPFC_MBOXQ_t *pmb; 6117 6118 /* Set up MSI-X multi-message vectors */ 6119 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6120 phba->msix_entries[i].entry = i; 6121 6122 /* Configure MSI-X capability structure */ 6123 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 6124 ARRAY_SIZE(phba->msix_entries)); 6125 if (rc) { 6126 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6127 "0420 PCI enable MSI-X failed (%d)\n", rc); 6128 goto msi_fail_out; 6129 } 6130 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6131 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6132 "0477 MSI-X entry[%d]: vector=x%x " 6133 "message=%d\n", i, 6134 phba->msix_entries[i].vector, 6135 phba->msix_entries[i].entry); 6136 /* 6137 * Assign MSI-X vectors to interrupt handlers 6138 */ 6139 6140 /* vector-0 is associated to slow-path handler */ 6141 rc = request_irq(phba->msix_entries[0].vector, 6142 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 6143 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6144 if (rc) { 6145 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6146 "0421 MSI-X slow-path request_irq failed " 6147 "(%d)\n", rc); 6148 goto msi_fail_out; 6149 } 6150 6151 /* vector-1 is associated to fast-path handler */ 6152 rc = request_irq(phba->msix_entries[1].vector, 6153 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 6154 LPFC_FP_DRIVER_HANDLER_NAME, phba); 6155 6156 if (rc) { 6157 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6158 "0429 MSI-X fast-path request_irq failed " 6159 "(%d)\n", rc); 6160 goto irq_fail_out; 6161 } 6162 6163 /* 6164 * Configure HBA MSI-X attention conditions to messages 6165 */ 6166 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6167 6168 if (!pmb) { 6169 rc = -ENOMEM; 6170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6171 "0474 Unable to allocate memory for issuing " 6172 "MBOX_CONFIG_MSI command\n"); 6173 goto mem_fail_out; 6174 } 6175 rc = lpfc_config_msi(phba, pmb); 6176 if (rc) 6177 goto mbx_fail_out; 6178 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6179 if (rc != MBX_SUCCESS) { 6180 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 6181 "0351 Config MSI mailbox command failed, " 6182 "mbxCmd x%x, mbxStatus x%x\n", 6183 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 6184 goto mbx_fail_out; 6185 } 6186 6187 /* Free memory allocated for mailbox command */ 6188 mempool_free(pmb, phba->mbox_mem_pool); 6189 return rc; 6190 6191mbx_fail_out: 6192 /* Free memory allocated for mailbox command */ 6193 mempool_free(pmb, phba->mbox_mem_pool); 6194 6195mem_fail_out: 6196 /* free the irq already requested */ 6197 free_irq(phba->msix_entries[1].vector, phba); 6198 6199irq_fail_out: 6200 /* free the irq already requested */ 6201 free_irq(phba->msix_entries[0].vector, phba); 6202 6203msi_fail_out: 6204 /* Unconfigure MSI-X capability structure */ 6205 pci_disable_msix(phba->pcidev); 6206 return rc; 6207} 6208 6209/** 6210 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 6211 * @phba: pointer to lpfc hba data structure. 6212 * 6213 * This routine is invoked to release the MSI-X vectors and then disable the 6214 * MSI-X interrupt mode to device with SLI-3 interface spec. 6215 **/ 6216static void 6217lpfc_sli_disable_msix(struct lpfc_hba *phba) 6218{ 6219 int i; 6220 6221 /* Free up MSI-X multi-message vectors */ 6222 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6223 free_irq(phba->msix_entries[i].vector, phba); 6224 /* Disable MSI-X */ 6225 pci_disable_msix(phba->pcidev); 6226 6227 return; 6228} 6229 6230/** 6231 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 6232 * @phba: pointer to lpfc hba data structure. 6233 * 6234 * This routine is invoked to enable the MSI interrupt mode to device with 6235 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 6236 * enable the MSI vector. The device driver is responsible for calling the 6237 * request_irq() to register MSI vector with a interrupt the handler, which 6238 * is done in this function. 6239 * 6240 * Return codes 6241 * 0 - sucessful 6242 * other values - error 6243 */ 6244static int 6245lpfc_sli_enable_msi(struct lpfc_hba *phba) 6246{ 6247 int rc; 6248 6249 rc = pci_enable_msi(phba->pcidev); 6250 if (!rc) 6251 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6252 "0462 PCI enable MSI mode success.\n"); 6253 else { 6254 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6255 "0471 PCI enable MSI mode failed (%d)\n", rc); 6256 return rc; 6257 } 6258 6259 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6260 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6261 if (rc) { 6262 pci_disable_msi(phba->pcidev); 6263 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6264 "0478 MSI request_irq failed (%d)\n", rc); 6265 } 6266 return rc; 6267} 6268 6269/** 6270 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 6271 * @phba: pointer to lpfc hba data structure. 6272 * 6273 * This routine is invoked to disable the MSI interrupt mode to device with 6274 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 6275 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6276 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6277 * its vector. 6278 */ 6279static void 6280lpfc_sli_disable_msi(struct lpfc_hba *phba) 6281{ 6282 free_irq(phba->pcidev->irq, phba); 6283 pci_disable_msi(phba->pcidev); 6284 return; 6285} 6286 6287/** 6288 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 6289 * @phba: pointer to lpfc hba data structure. 6290 * 6291 * This routine is invoked to enable device interrupt and associate driver's 6292 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 6293 * spec. Depends on the interrupt mode configured to the driver, the driver 6294 * will try to fallback from the configured interrupt mode to an interrupt 6295 * mode which is supported by the platform, kernel, and device in the order 6296 * of: 6297 * MSI-X -> MSI -> IRQ. 6298 * 6299 * Return codes 6300 * 0 - sucessful 6301 * other values - error 6302 **/ 6303static uint32_t 6304lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6305{ 6306 uint32_t intr_mode = LPFC_INTR_ERROR; 6307 int retval; 6308 6309 if (cfg_mode == 2) { 6310 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 6311 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 6312 if (!retval) { 6313 /* Now, try to enable MSI-X interrupt mode */ 6314 retval = lpfc_sli_enable_msix(phba); 6315 if (!retval) { 6316 /* Indicate initialization to MSI-X mode */ 6317 phba->intr_type = MSIX; 6318 intr_mode = 2; 6319 } 6320 } 6321 } 6322 6323 /* Fallback to MSI if MSI-X initialization failed */ 6324 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6325 retval = lpfc_sli_enable_msi(phba); 6326 if (!retval) { 6327 /* Indicate initialization to MSI mode */ 6328 phba->intr_type = MSI; 6329 intr_mode = 1; 6330 } 6331 } 6332 6333 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6334 if (phba->intr_type == NONE) { 6335 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6336 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6337 if (!retval) { 6338 /* Indicate initialization to INTx mode */ 6339 phba->intr_type = INTx; 6340 intr_mode = 0; 6341 } 6342 } 6343 return intr_mode; 6344} 6345 6346/** 6347 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 6348 * @phba: pointer to lpfc hba data structure. 6349 * 6350 * This routine is invoked to disable device interrupt and disassociate the 6351 * driver's interrupt handler(s) from interrupt vector(s) to device with 6352 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 6353 * release the interrupt vector(s) for the message signaled interrupt. 6354 **/ 6355static void 6356lpfc_sli_disable_intr(struct lpfc_hba *phba) 6357{ 6358 /* Disable the currently initialized interrupt mode */ 6359 if (phba->intr_type == MSIX) 6360 lpfc_sli_disable_msix(phba); 6361 else if (phba->intr_type == MSI) 6362 lpfc_sli_disable_msi(phba); 6363 else if (phba->intr_type == INTx) 6364 free_irq(phba->pcidev->irq, phba); 6365 6366 /* Reset interrupt management states */ 6367 phba->intr_type = NONE; 6368 phba->sli.slistat.sli_intr = 0; 6369 6370 return; 6371} 6372 6373/** 6374 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 6375 * @phba: pointer to lpfc hba data structure. 6376 * 6377 * This routine is invoked to enable the MSI-X interrupt vectors to device 6378 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 6379 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 6380 * enables either all or nothing, depending on the current availability of 6381 * PCI vector resources. The device driver is responsible for calling the 6382 * individual request_irq() to register each MSI-X vector with a interrupt 6383 * handler, which is done in this function. Note that later when device is 6384 * unloading, the driver should always call free_irq() on all MSI-X vectors 6385 * it has done request_irq() on before calling pci_disable_msix(). Failure 6386 * to do so results in a BUG_ON() and a device will be left with MSI-X 6387 * enabled and leaks its vectors. 6388 * 6389 * Return codes 6390 * 0 - sucessful 6391 * other values - error 6392 **/ 6393static int 6394lpfc_sli4_enable_msix(struct lpfc_hba *phba) 6395{ 6396 int rc, index; 6397 6398 /* Set up MSI-X multi-message vectors */ 6399 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 6400 phba->sli4_hba.msix_entries[index].entry = index; 6401 6402 /* Configure MSI-X capability structure */ 6403 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 6404 phba->sli4_hba.cfg_eqn); 6405 if (rc) { 6406 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6407 "0484 PCI enable MSI-X failed (%d)\n", rc); 6408 goto msi_fail_out; 6409 } 6410 /* Log MSI-X vector assignment */ 6411 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 6412 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6413 "0489 MSI-X entry[%d]: vector=x%x " 6414 "message=%d\n", index, 6415 phba->sli4_hba.msix_entries[index].vector, 6416 phba->sli4_hba.msix_entries[index].entry); 6417 /* 6418 * Assign MSI-X vectors to interrupt handlers 6419 */ 6420 6421 /* The first vector must associated to slow-path handler for MQ */ 6422 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 6423 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 6424 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6425 if (rc) { 6426 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6427 "0485 MSI-X slow-path request_irq failed " 6428 "(%d)\n", rc); 6429 goto msi_fail_out; 6430 } 6431 6432 /* The rest of the vector(s) are associated to fast-path handler(s) */ 6433 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) { 6434 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 6435 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 6436 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 6437 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 6438 LPFC_FP_DRIVER_HANDLER_NAME, 6439 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 6440 if (rc) { 6441 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6442 "0486 MSI-X fast-path (%d) " 6443 "request_irq failed (%d)\n", index, rc); 6444 goto cfg_fail_out; 6445 } 6446 } 6447 6448 return rc; 6449 6450cfg_fail_out: 6451 /* free the irq already requested */ 6452 for (--index; index >= 1; index--) 6453 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 6454 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 6455 6456 /* free the irq already requested */ 6457 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 6458 6459msi_fail_out: 6460 /* Unconfigure MSI-X capability structure */ 6461 pci_disable_msix(phba->pcidev); 6462 return rc; 6463} 6464 6465/** 6466 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 6467 * @phba: pointer to lpfc hba data structure. 6468 * 6469 * This routine is invoked to release the MSI-X vectors and then disable the 6470 * MSI-X interrupt mode to device with SLI-4 interface spec. 6471 **/ 6472static void 6473lpfc_sli4_disable_msix(struct lpfc_hba *phba) 6474{ 6475 int index; 6476 6477 /* Free up MSI-X multi-message vectors */ 6478 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 6479 6480 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) 6481 free_irq(phba->sli4_hba.msix_entries[index].vector, 6482 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 6483 /* Disable MSI-X */ 6484 pci_disable_msix(phba->pcidev); 6485 6486 return; 6487} 6488 6489/** 6490 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 6491 * @phba: pointer to lpfc hba data structure. 6492 * 6493 * This routine is invoked to enable the MSI interrupt mode to device with 6494 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 6495 * to enable the MSI vector. The device driver is responsible for calling 6496 * the request_irq() to register MSI vector with a interrupt the handler, 6497 * which is done in this function. 6498 * 6499 * Return codes 6500 * 0 - sucessful 6501 * other values - error 6502 **/ 6503static int 6504lpfc_sli4_enable_msi(struct lpfc_hba *phba) 6505{ 6506 int rc, index; 6507 6508 rc = pci_enable_msi(phba->pcidev); 6509 if (!rc) 6510 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6511 "0487 PCI enable MSI mode success.\n"); 6512 else { 6513 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6514 "0488 PCI enable MSI mode failed (%d)\n", rc); 6515 return rc; 6516 } 6517 6518 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 6519 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6520 if (rc) { 6521 pci_disable_msi(phba->pcidev); 6522 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6523 "0490 MSI request_irq failed (%d)\n", rc); 6524 } 6525 6526 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 6527 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 6528 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 6529 } 6530 6531 return rc; 6532} 6533 6534/** 6535 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 6536 * @phba: pointer to lpfc hba data structure. 6537 * 6538 * This routine is invoked to disable the MSI interrupt mode to device with 6539 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 6540 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6541 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6542 * its vector. 6543 **/ 6544static void 6545lpfc_sli4_disable_msi(struct lpfc_hba *phba) 6546{ 6547 free_irq(phba->pcidev->irq, phba); 6548 pci_disable_msi(phba->pcidev); 6549 return; 6550} 6551 6552/** 6553 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 6554 * @phba: pointer to lpfc hba data structure. 6555 * 6556 * This routine is invoked to enable device interrupt and associate driver's 6557 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 6558 * interface spec. Depends on the interrupt mode configured to the driver, 6559 * the driver will try to fallback from the configured interrupt mode to an 6560 * interrupt mode which is supported by the platform, kernel, and device in 6561 * the order of: 6562 * MSI-X -> MSI -> IRQ. 6563 * 6564 * Return codes 6565 * 0 - sucessful 6566 * other values - error 6567 **/ 6568static uint32_t 6569lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6570{ 6571 uint32_t intr_mode = LPFC_INTR_ERROR; 6572 int retval, index; 6573 6574 if (cfg_mode == 2) { 6575 /* Preparation before conf_msi mbox cmd */ 6576 retval = 0; 6577 if (!retval) { 6578 /* Now, try to enable MSI-X interrupt mode */ 6579 retval = lpfc_sli4_enable_msix(phba); 6580 if (!retval) { 6581 /* Indicate initialization to MSI-X mode */ 6582 phba->intr_type = MSIX; 6583 intr_mode = 2; 6584 } 6585 } 6586 } 6587 6588 /* Fallback to MSI if MSI-X initialization failed */ 6589 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6590 retval = lpfc_sli4_enable_msi(phba); 6591 if (!retval) { 6592 /* Indicate initialization to MSI mode */ 6593 phba->intr_type = MSI; 6594 intr_mode = 1; 6595 } 6596 } 6597 6598 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6599 if (phba->intr_type == NONE) { 6600 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 6601 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6602 if (!retval) { 6603 /* Indicate initialization to INTx mode */ 6604 phba->intr_type = INTx; 6605 intr_mode = 0; 6606 for (index = 0; index < phba->cfg_fcp_eq_count; 6607 index++) { 6608 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 6609 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 6610 } 6611 } 6612 } 6613 return intr_mode; 6614} 6615 6616/** 6617 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 6618 * @phba: pointer to lpfc hba data structure. 6619 * 6620 * This routine is invoked to disable device interrupt and disassociate 6621 * the driver's interrupt handler(s) from interrupt vector(s) to device 6622 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 6623 * will release the interrupt vector(s) for the message signaled interrupt. 6624 **/ 6625static void 6626lpfc_sli4_disable_intr(struct lpfc_hba *phba) 6627{ 6628 /* Disable the currently initialized interrupt mode */ 6629 if (phba->intr_type == MSIX) 6630 lpfc_sli4_disable_msix(phba); 6631 else if (phba->intr_type == MSI) 6632 lpfc_sli4_disable_msi(phba); 6633 else if (phba->intr_type == INTx) 6634 free_irq(phba->pcidev->irq, phba); 6635 6636 /* Reset interrupt management states */ 6637 phba->intr_type = NONE; 6638 phba->sli.slistat.sli_intr = 0; 6639 6640 return; 6641} 6642 6643/** 6644 * lpfc_unset_hba - Unset SLI3 hba device initialization 6645 * @phba: pointer to lpfc hba data structure. 6646 * 6647 * This routine is invoked to unset the HBA device initialization steps to 6648 * a device with SLI-3 interface spec. 6649 **/ 6650static void 6651lpfc_unset_hba(struct lpfc_hba *phba) 6652{ 6653 struct lpfc_vport *vport = phba->pport; 6654 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6655 6656 spin_lock_irq(shost->host_lock); 6657 vport->load_flag |= FC_UNLOADING; 6658 spin_unlock_irq(shost->host_lock); 6659 6660 lpfc_stop_hba_timers(phba); 6661 6662 phba->pport->work_port_events = 0; 6663 6664 lpfc_sli_hba_down(phba); 6665 6666 lpfc_sli_brdrestart(phba); 6667 6668 lpfc_sli_disable_intr(phba); 6669 6670 return; 6671} 6672 6673/** 6674 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 6675 * @phba: pointer to lpfc hba data structure. 6676 * 6677 * This routine is invoked to unset the HBA device initialization steps to 6678 * a device with SLI-4 interface spec. 6679 **/ 6680static void 6681lpfc_sli4_unset_hba(struct lpfc_hba *phba) 6682{ 6683 struct lpfc_vport *vport = phba->pport; 6684 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6685 6686 spin_lock_irq(shost->host_lock); 6687 vport->load_flag |= FC_UNLOADING; 6688 spin_unlock_irq(shost->host_lock); 6689 6690 phba->pport->work_port_events = 0; 6691 6692 lpfc_sli4_hba_down(phba); 6693 6694 lpfc_sli4_disable_intr(phba); 6695 6696 return; 6697} 6698 6699/** 6700 * lpfc_sli4_hba_unset - Unset the fcoe hba 6701 * @phba: Pointer to HBA context object. 6702 * 6703 * This function is called in the SLI4 code path to reset the HBA's FCoE 6704 * function. The caller is not required to hold any lock. This routine 6705 * issues PCI function reset mailbox command to reset the FCoE function. 6706 * At the end of the function, it calls lpfc_hba_down_post function to 6707 * free any pending commands. 6708 **/ 6709static void 6710lpfc_sli4_hba_unset(struct lpfc_hba *phba) 6711{ 6712 int wait_cnt = 0; 6713 LPFC_MBOXQ_t *mboxq; 6714 6715 lpfc_stop_hba_timers(phba); 6716 phba->sli4_hba.intr_enable = 0; 6717 6718 /* 6719 * Gracefully wait out the potential current outstanding asynchronous 6720 * mailbox command. 6721 */ 6722 6723 /* First, block any pending async mailbox command from posted */ 6724 spin_lock_irq(&phba->hbalock); 6725 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 6726 spin_unlock_irq(&phba->hbalock); 6727 /* Now, trying to wait it out if we can */ 6728 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 6729 msleep(10); 6730 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 6731 break; 6732 } 6733 /* Forcefully release the outstanding mailbox command if timed out */ 6734 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 6735 spin_lock_irq(&phba->hbalock); 6736 mboxq = phba->sli.mbox_active; 6737 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 6738 __lpfc_mbox_cmpl_put(phba, mboxq); 6739 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 6740 phba->sli.mbox_active = NULL; 6741 spin_unlock_irq(&phba->hbalock); 6742 } 6743 6744 /* Tear down the queues in the HBA */ 6745 lpfc_sli4_queue_unset(phba); 6746 6747 /* Disable PCI subsystem interrupt */ 6748 lpfc_sli4_disable_intr(phba); 6749 6750 /* Stop kthread signal shall trigger work_done one more time */ 6751 kthread_stop(phba->worker_thread); 6752 6753 /* Stop the SLI4 device port */ 6754 phba->pport->work_port_events = 0; 6755} 6756 6757/** 6758 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 6759 * @pdev: pointer to PCI device 6760 * @pid: pointer to PCI device identifier 6761 * 6762 * This routine is to be called to attach a device with SLI-3 interface spec 6763 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 6764 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 6765 * information of the device and driver to see if the driver state that it can 6766 * support this kind of device. If the match is successful, the driver core 6767 * invokes this routine. If this routine determines it can claim the HBA, it 6768 * does all the initialization that it needs to do to handle the HBA properly. 6769 * 6770 * Return code 6771 * 0 - driver can claim the device 6772 * negative value - driver can not claim the device 6773 **/ 6774static int __devinit 6775lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 6776{ 6777 struct lpfc_hba *phba; 6778 struct lpfc_vport *vport = NULL; 6779 struct Scsi_Host *shost = NULL; 6780 int error; 6781 uint32_t cfg_mode, intr_mode; 6782 6783 /* Allocate memory for HBA structure */ 6784 phba = lpfc_hba_alloc(pdev); 6785 if (!phba) 6786 return -ENOMEM; 6787 6788 /* Perform generic PCI device enabling operation */ 6789 error = lpfc_enable_pci_dev(phba); 6790 if (error) { 6791 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6792 "1401 Failed to enable pci device.\n"); 6793 goto out_free_phba; 6794 } 6795 6796 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 6797 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 6798 if (error) 6799 goto out_disable_pci_dev; 6800 6801 /* Set up SLI-3 specific device PCI memory space */ 6802 error = lpfc_sli_pci_mem_setup(phba); 6803 if (error) { 6804 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6805 "1402 Failed to set up pci memory space.\n"); 6806 goto out_disable_pci_dev; 6807 } 6808 6809 /* Set up phase-1 common device driver resources */ 6810 error = lpfc_setup_driver_resource_phase1(phba); 6811 if (error) { 6812 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6813 "1403 Failed to set up driver resource.\n"); 6814 goto out_unset_pci_mem_s3; 6815 } 6816 6817 /* Set up SLI-3 specific device driver resources */ 6818 error = lpfc_sli_driver_resource_setup(phba); 6819 if (error) { 6820 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6821 "1404 Failed to set up driver resource.\n"); 6822 goto out_unset_pci_mem_s3; 6823 } 6824 6825 /* Initialize and populate the iocb list per host */ 6826 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 6827 if (error) { 6828 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6829 "1405 Failed to initialize iocb list.\n"); 6830 goto out_unset_driver_resource_s3; 6831 } 6832 6833 /* Set up common device driver resources */ 6834 error = lpfc_setup_driver_resource_phase2(phba); 6835 if (error) { 6836 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6837 "1406 Failed to set up driver resource.\n"); 6838 goto out_free_iocb_list; 6839 } 6840 6841 /* Create SCSI host to the physical port */ 6842 error = lpfc_create_shost(phba); 6843 if (error) { 6844 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6845 "1407 Failed to create scsi host.\n"); 6846 goto out_unset_driver_resource; 6847 } 6848 6849 /* Configure sysfs attributes */ 6850 vport = phba->pport; 6851 error = lpfc_alloc_sysfs_attr(vport); 6852 if (error) { 6853 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6854 "1476 Failed to allocate sysfs attr\n"); 6855 goto out_destroy_shost; 6856 } 6857 6858 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 6859 /* Now, trying to enable interrupt and bring up the device */ 6860 cfg_mode = phba->cfg_use_msi; 6861 while (true) { 6862 /* Put device to a known state before enabling interrupt */ 6863 lpfc_stop_port(phba); 6864 /* Configure and enable interrupt */ 6865 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 6866 if (intr_mode == LPFC_INTR_ERROR) { 6867 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6868 "0431 Failed to enable interrupt.\n"); 6869 error = -ENODEV; 6870 goto out_free_sysfs_attr; 6871 } 6872 /* SLI-3 HBA setup */ 6873 if (lpfc_sli_hba_setup(phba)) { 6874 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6875 "1477 Failed to set up hba\n"); 6876 error = -ENODEV; 6877 goto out_remove_device; 6878 } 6879 6880 /* Wait 50ms for the interrupts of previous mailbox commands */ 6881 msleep(50); 6882 /* Check active interrupts on message signaled interrupts */ 6883 if (intr_mode == 0 || 6884 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 6885 /* Log the current active interrupt mode */ 6886 phba->intr_mode = intr_mode; 6887 lpfc_log_intr_mode(phba, intr_mode); 6888 break; 6889 } else { 6890 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6891 "0447 Configure interrupt mode (%d) " 6892 "failed active interrupt test.\n", 6893 intr_mode); 6894 /* Disable the current interrupt mode */ 6895 lpfc_sli_disable_intr(phba); 6896 /* Try next level of interrupt mode */ 6897 cfg_mode = --intr_mode; 6898 } 6899 } 6900 6901 /* Perform post initialization setup */ 6902 lpfc_post_init_setup(phba); 6903 6904 /* Check if there are static vports to be created. */ 6905 lpfc_create_static_vport(phba); 6906 6907 return 0; 6908 6909out_remove_device: 6910 lpfc_unset_hba(phba); 6911out_free_sysfs_attr: 6912 lpfc_free_sysfs_attr(vport); 6913out_destroy_shost: 6914 lpfc_destroy_shost(phba); 6915out_unset_driver_resource: 6916 lpfc_unset_driver_resource_phase2(phba); 6917out_free_iocb_list: 6918 lpfc_free_iocb_list(phba); 6919out_unset_driver_resource_s3: 6920 lpfc_sli_driver_resource_unset(phba); 6921out_unset_pci_mem_s3: 6922 lpfc_sli_pci_mem_unset(phba); 6923out_disable_pci_dev: 6924 lpfc_disable_pci_dev(phba); 6925 if (shost) 6926 scsi_host_put(shost); 6927out_free_phba: 6928 lpfc_hba_free(phba); 6929 return error; 6930} 6931 6932/** 6933 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 6934 * @pdev: pointer to PCI device 6935 * 6936 * This routine is to be called to disattach a device with SLI-3 interface 6937 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 6938 * removed from PCI bus, it performs all the necessary cleanup for the HBA 6939 * device to be removed from the PCI subsystem properly. 6940 **/ 6941static void __devexit 6942lpfc_pci_remove_one_s3(struct pci_dev *pdev) 6943{ 6944 struct Scsi_Host *shost = pci_get_drvdata(pdev); 6945 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6946 struct lpfc_vport **vports; 6947 struct lpfc_hba *phba = vport->phba; 6948 int i; 6949 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 6950 6951 spin_lock_irq(&phba->hbalock); 6952 vport->load_flag |= FC_UNLOADING; 6953 spin_unlock_irq(&phba->hbalock); 6954 6955 lpfc_free_sysfs_attr(vport); 6956 6957 /* Release all the vports against this physical port */ 6958 vports = lpfc_create_vport_work_array(phba); 6959 if (vports != NULL) 6960 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 6961 fc_vport_terminate(vports[i]->fc_vport); 6962 lpfc_destroy_vport_work_array(phba, vports); 6963 6964 /* Remove FC host and then SCSI host with the physical port */ 6965 fc_remove_host(shost); 6966 scsi_remove_host(shost); 6967 lpfc_cleanup(vport); 6968 6969 /* 6970 * Bring down the SLI Layer. This step disable all interrupts, 6971 * clears the rings, discards all mailbox commands, and resets 6972 * the HBA. 6973 */ 6974 6975 /* HBA interrupt will be diabled after this call */ 6976 lpfc_sli_hba_down(phba); 6977 /* Stop kthread signal shall trigger work_done one more time */ 6978 kthread_stop(phba->worker_thread); 6979 /* Final cleanup of txcmplq and reset the HBA */ 6980 lpfc_sli_brdrestart(phba); 6981 6982 lpfc_stop_hba_timers(phba); 6983 spin_lock_irq(&phba->hbalock); 6984 list_del_init(&vport->listentry); 6985 spin_unlock_irq(&phba->hbalock); 6986 6987 lpfc_debugfs_terminate(vport); 6988 6989 /* Disable interrupt */ 6990 lpfc_sli_disable_intr(phba); 6991 6992 pci_set_drvdata(pdev, NULL); 6993 scsi_host_put(shost); 6994 6995 /* 6996 * Call scsi_free before mem_free since scsi bufs are released to their 6997 * corresponding pools here. 6998 */ 6999 lpfc_scsi_free(phba); 7000 lpfc_mem_free_all(phba); 7001 7002 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7003 phba->hbqslimp.virt, phba->hbqslimp.phys); 7004 7005 /* Free resources associated with SLI2 interface */ 7006 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7007 phba->slim2p.virt, phba->slim2p.phys); 7008 7009 /* unmap adapter SLIM and Control Registers */ 7010 iounmap(phba->ctrl_regs_memmap_p); 7011 iounmap(phba->slim_memmap_p); 7012 7013 lpfc_hba_free(phba); 7014 7015 pci_release_selected_regions(pdev, bars); 7016 pci_disable_device(pdev); 7017} 7018 7019/** 7020 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 7021 * @pdev: pointer to PCI device 7022 * @msg: power management message 7023 * 7024 * This routine is to be called from the kernel's PCI subsystem to support 7025 * system Power Management (PM) to device with SLI-3 interface spec. When 7026 * PM invokes this method, it quiesces the device by stopping the driver's 7027 * worker thread for the device, turning off device's interrupt and DMA, 7028 * and bring the device offline. Note that as the driver implements the 7029 * minimum PM requirements to a power-aware driver's PM support for the 7030 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 7031 * to the suspend() method call will be treated as SUSPEND and the driver will 7032 * fully reinitialize its device during resume() method call, the driver will 7033 * set device to PCI_D3hot state in PCI config space instead of setting it 7034 * according to the @msg provided by the PM. 7035 * 7036 * Return code 7037 * 0 - driver suspended the device 7038 * Error otherwise 7039 **/ 7040static int 7041lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 7042{ 7043 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7044 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7045 7046 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7047 "0473 PCI device Power Management suspend.\n"); 7048 7049 /* Bring down the device */ 7050 lpfc_offline_prep(phba); 7051 lpfc_offline(phba); 7052 kthread_stop(phba->worker_thread); 7053 7054 /* Disable interrupt from device */ 7055 lpfc_sli_disable_intr(phba); 7056 7057 /* Save device state to PCI config space */ 7058 pci_save_state(pdev); 7059 pci_set_power_state(pdev, PCI_D3hot); 7060 7061 return 0; 7062} 7063 7064/** 7065 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 7066 * @pdev: pointer to PCI device 7067 * 7068 * This routine is to be called from the kernel's PCI subsystem to support 7069 * system Power Management (PM) to device with SLI-3 interface spec. When PM 7070 * invokes this method, it restores the device's PCI config space state and 7071 * fully reinitializes the device and brings it online. Note that as the 7072 * driver implements the minimum PM requirements to a power-aware driver's 7073 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 7074 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 7075 * driver will fully reinitialize its device during resume() method call, 7076 * the device will be set to PCI_D0 directly in PCI config space before 7077 * restoring the state. 7078 * 7079 * Return code 7080 * 0 - driver suspended the device 7081 * Error otherwise 7082 **/ 7083static int 7084lpfc_pci_resume_one_s3(struct pci_dev *pdev) 7085{ 7086 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7087 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7088 uint32_t intr_mode; 7089 int error; 7090 7091 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7092 "0452 PCI device Power Management resume.\n"); 7093 7094 /* Restore device state from PCI config space */ 7095 pci_set_power_state(pdev, PCI_D0); 7096 pci_restore_state(pdev); 7097 if (pdev->is_busmaster) 7098 pci_set_master(pdev); 7099 7100 /* Startup the kernel thread for this host adapter. */ 7101 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7102 "lpfc_worker_%d", phba->brd_no); 7103 if (IS_ERR(phba->worker_thread)) { 7104 error = PTR_ERR(phba->worker_thread); 7105 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7106 "0434 PM resume failed to start worker " 7107 "thread: error=x%x.\n", error); 7108 return error; 7109 } 7110 7111 /* Configure and enable interrupt */ 7112 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7113 if (intr_mode == LPFC_INTR_ERROR) { 7114 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7115 "0430 PM resume Failed to enable interrupt\n"); 7116 return -EIO; 7117 } else 7118 phba->intr_mode = intr_mode; 7119 7120 /* Restart HBA and bring it online */ 7121 lpfc_sli_brdrestart(phba); 7122 lpfc_online(phba); 7123 7124 /* Log the current active interrupt mode */ 7125 lpfc_log_intr_mode(phba, phba->intr_mode); 7126 7127 return 0; 7128} 7129 7130/** 7131 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 7132 * @pdev: pointer to PCI device. 7133 * @state: the current PCI connection state. 7134 * 7135 * This routine is called from the PCI subsystem for I/O error handling to 7136 * device with SLI-3 interface spec. This function is called by the PCI 7137 * subsystem after a PCI bus error affecting this device has been detected. 7138 * When this function is invoked, it will need to stop all the I/Os and 7139 * interrupt(s) to the device. Once that is done, it will return 7140 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 7141 * as desired. 7142 * 7143 * Return codes 7144 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7145 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7146 **/ 7147static pci_ers_result_t 7148lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 7149{ 7150 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7151 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7152 struct lpfc_sli *psli = &phba->sli; 7153 struct lpfc_sli_ring *pring; 7154 7155 if (state == pci_channel_io_perm_failure) { 7156 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7157 "0472 PCI channel I/O permanent failure\n"); 7158 /* Block all SCSI devices' I/Os on the host */ 7159 lpfc_scsi_dev_block(phba); 7160 /* Clean up all driver's outstanding SCSI I/Os */ 7161 lpfc_sli_flush_fcp_rings(phba); 7162 return PCI_ERS_RESULT_DISCONNECT; 7163 } 7164 7165 pci_disable_device(pdev); 7166 /* 7167 * There may be I/Os dropped by the firmware. 7168 * Error iocb (I/O) on txcmplq and let the SCSI layer 7169 * retry it after re-establishing link. 7170 */ 7171 pring = &psli->ring[psli->fcp_ring]; 7172 lpfc_sli_abort_iocb_ring(phba, pring); 7173 7174 /* Disable interrupt */ 7175 lpfc_sli_disable_intr(phba); 7176 7177 /* Request a slot reset. */ 7178 return PCI_ERS_RESULT_NEED_RESET; 7179} 7180 7181/** 7182 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 7183 * @pdev: pointer to PCI device. 7184 * 7185 * This routine is called from the PCI subsystem for error handling to 7186 * device with SLI-3 interface spec. This is called after PCI bus has been 7187 * reset to restart the PCI card from scratch, as if from a cold-boot. 7188 * During the PCI subsystem error recovery, after driver returns 7189 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 7190 * recovery and then call this routine before calling the .resume method 7191 * to recover the device. This function will initialize the HBA device, 7192 * enable the interrupt, but it will just put the HBA to offline state 7193 * without passing any I/O traffic. 7194 * 7195 * Return codes 7196 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7197 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7198 */ 7199static pci_ers_result_t 7200lpfc_io_slot_reset_s3(struct pci_dev *pdev) 7201{ 7202 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7203 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7204 struct lpfc_sli *psli = &phba->sli; 7205 uint32_t intr_mode; 7206 7207 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 7208 if (pci_enable_device_mem(pdev)) { 7209 printk(KERN_ERR "lpfc: Cannot re-enable " 7210 "PCI device after reset.\n"); 7211 return PCI_ERS_RESULT_DISCONNECT; 7212 } 7213 7214 pci_restore_state(pdev); 7215 if (pdev->is_busmaster) 7216 pci_set_master(pdev); 7217 7218 spin_lock_irq(&phba->hbalock); 7219 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 7220 spin_unlock_irq(&phba->hbalock); 7221 7222 /* Configure and enable interrupt */ 7223 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7224 if (intr_mode == LPFC_INTR_ERROR) { 7225 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7226 "0427 Cannot re-enable interrupt after " 7227 "slot reset.\n"); 7228 return PCI_ERS_RESULT_DISCONNECT; 7229 } else 7230 phba->intr_mode = intr_mode; 7231 7232 /* Take device offline; this will perform cleanup */ 7233 lpfc_offline(phba); 7234 lpfc_sli_brdrestart(phba); 7235 7236 /* Log the current active interrupt mode */ 7237 lpfc_log_intr_mode(phba, phba->intr_mode); 7238 7239 return PCI_ERS_RESULT_RECOVERED; 7240} 7241 7242/** 7243 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 7244 * @pdev: pointer to PCI device 7245 * 7246 * This routine is called from the PCI subsystem for error handling to device 7247 * with SLI-3 interface spec. It is called when kernel error recovery tells 7248 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 7249 * error recovery. After this call, traffic can start to flow from this device 7250 * again. 7251 */ 7252static void 7253lpfc_io_resume_s3(struct pci_dev *pdev) 7254{ 7255 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7256 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7257 7258 lpfc_online(phba); 7259} 7260 7261/** 7262 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 7263 * @phba: pointer to lpfc hba data structure. 7264 * 7265 * returns the number of ELS/CT IOCBs to reserve 7266 **/ 7267int 7268lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 7269{ 7270 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 7271 7272 if (phba->sli_rev == LPFC_SLI_REV4) { 7273 if (max_xri <= 100) 7274 return 4; 7275 else if (max_xri <= 256) 7276 return 8; 7277 else if (max_xri <= 512) 7278 return 16; 7279 else if (max_xri <= 1024) 7280 return 32; 7281 else 7282 return 48; 7283 } else 7284 return 0; 7285} 7286 7287/** 7288 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 7289 * @pdev: pointer to PCI device 7290 * @pid: pointer to PCI device identifier 7291 * 7292 * This routine is called from the kernel's PCI subsystem to device with 7293 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 7294 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 7295 * information of the device and driver to see if the driver state that it 7296 * can support this kind of device. If the match is successful, the driver 7297 * core invokes this routine. If this routine determines it can claim the HBA, 7298 * it does all the initialization that it needs to do to handle the HBA 7299 * properly. 7300 * 7301 * Return code 7302 * 0 - driver can claim the device 7303 * negative value - driver can not claim the device 7304 **/ 7305static int __devinit 7306lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 7307{ 7308 struct lpfc_hba *phba; 7309 struct lpfc_vport *vport = NULL; 7310 struct Scsi_Host *shost = NULL; 7311 int error; 7312 uint32_t cfg_mode, intr_mode; 7313 int mcnt; 7314 7315 /* Allocate memory for HBA structure */ 7316 phba = lpfc_hba_alloc(pdev); 7317 if (!phba) 7318 return -ENOMEM; 7319 7320 /* Perform generic PCI device enabling operation */ 7321 error = lpfc_enable_pci_dev(phba); 7322 if (error) { 7323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7324 "1409 Failed to enable pci device.\n"); 7325 goto out_free_phba; 7326 } 7327 7328 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 7329 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 7330 if (error) 7331 goto out_disable_pci_dev; 7332 7333 /* Set up SLI-4 specific device PCI memory space */ 7334 error = lpfc_sli4_pci_mem_setup(phba); 7335 if (error) { 7336 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7337 "1410 Failed to set up pci memory space.\n"); 7338 goto out_disable_pci_dev; 7339 } 7340 7341 /* Set up phase-1 common device driver resources */ 7342 error = lpfc_setup_driver_resource_phase1(phba); 7343 if (error) { 7344 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7345 "1411 Failed to set up driver resource.\n"); 7346 goto out_unset_pci_mem_s4; 7347 } 7348 7349 /* Set up SLI-4 Specific device driver resources */ 7350 error = lpfc_sli4_driver_resource_setup(phba); 7351 if (error) { 7352 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7353 "1412 Failed to set up driver resource.\n"); 7354 goto out_unset_pci_mem_s4; 7355 } 7356 7357 /* Initialize and populate the iocb list per host */ 7358 error = lpfc_init_iocb_list(phba, 7359 phba->sli4_hba.max_cfg_param.max_xri); 7360 if (error) { 7361 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7362 "1413 Failed to initialize iocb list.\n"); 7363 goto out_unset_driver_resource_s4; 7364 } 7365 7366 /* Set up common device driver resources */ 7367 error = lpfc_setup_driver_resource_phase2(phba); 7368 if (error) { 7369 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7370 "1414 Failed to set up driver resource.\n"); 7371 goto out_free_iocb_list; 7372 } 7373 7374 /* Create SCSI host to the physical port */ 7375 error = lpfc_create_shost(phba); 7376 if (error) { 7377 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7378 "1415 Failed to create scsi host.\n"); 7379 goto out_unset_driver_resource; 7380 } 7381 7382 /* Configure sysfs attributes */ 7383 vport = phba->pport; 7384 error = lpfc_alloc_sysfs_attr(vport); 7385 if (error) { 7386 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7387 "1416 Failed to allocate sysfs attr\n"); 7388 goto out_destroy_shost; 7389 } 7390 7391 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 7392 /* Now, trying to enable interrupt and bring up the device */ 7393 cfg_mode = phba->cfg_use_msi; 7394 while (true) { 7395 /* Put device to a known state before enabling interrupt */ 7396 lpfc_stop_port(phba); 7397 /* Configure and enable interrupt */ 7398 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 7399 if (intr_mode == LPFC_INTR_ERROR) { 7400 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7401 "0426 Failed to enable interrupt.\n"); 7402 error = -ENODEV; 7403 goto out_free_sysfs_attr; 7404 } 7405 /* Set up SLI-4 HBA */ 7406 if (lpfc_sli4_hba_setup(phba)) { 7407 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7408 "1421 Failed to set up hba\n"); 7409 error = -ENODEV; 7410 goto out_disable_intr; 7411 } 7412 7413 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 7414 if (intr_mode != 0) 7415 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 7416 LPFC_ACT_INTR_CNT); 7417 7418 /* Check active interrupts received only for MSI/MSI-X */ 7419 if (intr_mode == 0 || 7420 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 7421 /* Log the current active interrupt mode */ 7422 phba->intr_mode = intr_mode; 7423 lpfc_log_intr_mode(phba, intr_mode); 7424 break; 7425 } 7426 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7427 "0451 Configure interrupt mode (%d) " 7428 "failed active interrupt test.\n", 7429 intr_mode); 7430 /* Unset the preivous SLI-4 HBA setup */ 7431 lpfc_sli4_unset_hba(phba); 7432 /* Try next level of interrupt mode */ 7433 cfg_mode = --intr_mode; 7434 } 7435 7436 /* Perform post initialization setup */ 7437 lpfc_post_init_setup(phba); 7438 7439 /* Check if there are static vports to be created. */ 7440 lpfc_create_static_vport(phba); 7441 7442 return 0; 7443 7444out_disable_intr: 7445 lpfc_sli4_disable_intr(phba); 7446out_free_sysfs_attr: 7447 lpfc_free_sysfs_attr(vport); 7448out_destroy_shost: 7449 lpfc_destroy_shost(phba); 7450out_unset_driver_resource: 7451 lpfc_unset_driver_resource_phase2(phba); 7452out_free_iocb_list: 7453 lpfc_free_iocb_list(phba); 7454out_unset_driver_resource_s4: 7455 lpfc_sli4_driver_resource_unset(phba); 7456out_unset_pci_mem_s4: 7457 lpfc_sli4_pci_mem_unset(phba); 7458out_disable_pci_dev: 7459 lpfc_disable_pci_dev(phba); 7460 if (shost) 7461 scsi_host_put(shost); 7462out_free_phba: 7463 lpfc_hba_free(phba); 7464 return error; 7465} 7466 7467/** 7468 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 7469 * @pdev: pointer to PCI device 7470 * 7471 * This routine is called from the kernel's PCI subsystem to device with 7472 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 7473 * removed from PCI bus, it performs all the necessary cleanup for the HBA 7474 * device to be removed from the PCI subsystem properly. 7475 **/ 7476static void __devexit 7477lpfc_pci_remove_one_s4(struct pci_dev *pdev) 7478{ 7479 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7480 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7481 struct lpfc_vport **vports; 7482 struct lpfc_hba *phba = vport->phba; 7483 int i; 7484 7485 /* Mark the device unloading flag */ 7486 spin_lock_irq(&phba->hbalock); 7487 vport->load_flag |= FC_UNLOADING; 7488 spin_unlock_irq(&phba->hbalock); 7489 7490 /* Free the HBA sysfs attributes */ 7491 lpfc_free_sysfs_attr(vport); 7492 7493 /* Release all the vports against this physical port */ 7494 vports = lpfc_create_vport_work_array(phba); 7495 if (vports != NULL) 7496 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 7497 fc_vport_terminate(vports[i]->fc_vport); 7498 lpfc_destroy_vport_work_array(phba, vports); 7499 7500 /* Remove FC host and then SCSI host with the physical port */ 7501 fc_remove_host(shost); 7502 scsi_remove_host(shost); 7503 7504 /* Perform cleanup on the physical port */ 7505 lpfc_cleanup(vport); 7506 7507 /* 7508 * Bring down the SLI Layer. This step disables all interrupts, 7509 * clears the rings, discards all mailbox commands, and resets 7510 * the HBA FCoE function. 7511 */ 7512 lpfc_debugfs_terminate(vport); 7513 lpfc_sli4_hba_unset(phba); 7514 7515 spin_lock_irq(&phba->hbalock); 7516 list_del_init(&vport->listentry); 7517 spin_unlock_irq(&phba->hbalock); 7518 7519 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi 7520 * buffers are released to their corresponding pools here. 7521 */ 7522 lpfc_scsi_free(phba); 7523 lpfc_sli4_driver_resource_unset(phba); 7524 7525 /* Unmap adapter Control and Doorbell registers */ 7526 lpfc_sli4_pci_mem_unset(phba); 7527 7528 /* Release PCI resources and disable device's PCI function */ 7529 scsi_host_put(shost); 7530 lpfc_disable_pci_dev(phba); 7531 7532 /* Finally, free the driver's device data structure */ 7533 lpfc_hba_free(phba); 7534 7535 return; 7536} 7537 7538/** 7539 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 7540 * @pdev: pointer to PCI device 7541 * @msg: power management message 7542 * 7543 * This routine is called from the kernel's PCI subsystem to support system 7544 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 7545 * this method, it quiesces the device by stopping the driver's worker 7546 * thread for the device, turning off device's interrupt and DMA, and bring 7547 * the device offline. Note that as the driver implements the minimum PM 7548 * requirements to a power-aware driver's PM support for suspend/resume -- all 7549 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 7550 * method call will be treated as SUSPEND and the driver will fully 7551 * reinitialize its device during resume() method call, the driver will set 7552 * device to PCI_D3hot state in PCI config space instead of setting it 7553 * according to the @msg provided by the PM. 7554 * 7555 * Return code 7556 * 0 - driver suspended the device 7557 * Error otherwise 7558 **/ 7559static int 7560lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 7561{ 7562 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7563 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7564 7565 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7566 "0298 PCI device Power Management suspend.\n"); 7567 7568 /* Bring down the device */ 7569 lpfc_offline_prep(phba); 7570 lpfc_offline(phba); 7571 kthread_stop(phba->worker_thread); 7572 7573 /* Disable interrupt from device */ 7574 lpfc_sli4_disable_intr(phba); 7575 7576 /* Save device state to PCI config space */ 7577 pci_save_state(pdev); 7578 pci_set_power_state(pdev, PCI_D3hot); 7579 7580 return 0; 7581} 7582 7583/** 7584 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 7585 * @pdev: pointer to PCI device 7586 * 7587 * This routine is called from the kernel's PCI subsystem to support system 7588 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 7589 * this method, it restores the device's PCI config space state and fully 7590 * reinitializes the device and brings it online. Note that as the driver 7591 * implements the minimum PM requirements to a power-aware driver's PM for 7592 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 7593 * to the suspend() method call will be treated as SUSPEND and the driver 7594 * will fully reinitialize its device during resume() method call, the device 7595 * will be set to PCI_D0 directly in PCI config space before restoring the 7596 * state. 7597 * 7598 * Return code 7599 * 0 - driver suspended the device 7600 * Error otherwise 7601 **/ 7602static int 7603lpfc_pci_resume_one_s4(struct pci_dev *pdev) 7604{ 7605 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7606 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7607 uint32_t intr_mode; 7608 int error; 7609 7610 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7611 "0292 PCI device Power Management resume.\n"); 7612 7613 /* Restore device state from PCI config space */ 7614 pci_set_power_state(pdev, PCI_D0); 7615 pci_restore_state(pdev); 7616 if (pdev->is_busmaster) 7617 pci_set_master(pdev); 7618 7619 /* Startup the kernel thread for this host adapter. */ 7620 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7621 "lpfc_worker_%d", phba->brd_no); 7622 if (IS_ERR(phba->worker_thread)) { 7623 error = PTR_ERR(phba->worker_thread); 7624 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7625 "0293 PM resume failed to start worker " 7626 "thread: error=x%x.\n", error); 7627 return error; 7628 } 7629 7630 /* Configure and enable interrupt */ 7631 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 7632 if (intr_mode == LPFC_INTR_ERROR) { 7633 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7634 "0294 PM resume Failed to enable interrupt\n"); 7635 return -EIO; 7636 } else 7637 phba->intr_mode = intr_mode; 7638 7639 /* Restart HBA and bring it online */ 7640 lpfc_sli_brdrestart(phba); 7641 lpfc_online(phba); 7642 7643 /* Log the current active interrupt mode */ 7644 lpfc_log_intr_mode(phba, phba->intr_mode); 7645 7646 return 0; 7647} 7648 7649/** 7650 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 7651 * @pdev: pointer to PCI device. 7652 * @state: the current PCI connection state. 7653 * 7654 * This routine is called from the PCI subsystem for error handling to device 7655 * with SLI-4 interface spec. This function is called by the PCI subsystem 7656 * after a PCI bus error affecting this device has been detected. When this 7657 * function is invoked, it will need to stop all the I/Os and interrupt(s) 7658 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 7659 * for the PCI subsystem to perform proper recovery as desired. 7660 * 7661 * Return codes 7662 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7663 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7664 **/ 7665static pci_ers_result_t 7666lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 7667{ 7668 return PCI_ERS_RESULT_NEED_RESET; 7669} 7670 7671/** 7672 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 7673 * @pdev: pointer to PCI device. 7674 * 7675 * This routine is called from the PCI subsystem for error handling to device 7676 * with SLI-4 interface spec. It is called after PCI bus has been reset to 7677 * restart the PCI card from scratch, as if from a cold-boot. During the 7678 * PCI subsystem error recovery, after the driver returns 7679 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 7680 * recovery and then call this routine before calling the .resume method to 7681 * recover the device. This function will initialize the HBA device, enable 7682 * the interrupt, but it will just put the HBA to offline state without 7683 * passing any I/O traffic. 7684 * 7685 * Return codes 7686 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7687 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7688 */ 7689static pci_ers_result_t 7690lpfc_io_slot_reset_s4(struct pci_dev *pdev) 7691{ 7692 return PCI_ERS_RESULT_RECOVERED; 7693} 7694 7695/** 7696 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 7697 * @pdev: pointer to PCI device 7698 * 7699 * This routine is called from the PCI subsystem for error handling to device 7700 * with SLI-4 interface spec. It is called when kernel error recovery tells 7701 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 7702 * error recovery. After this call, traffic can start to flow from this device 7703 * again. 7704 **/ 7705static void 7706lpfc_io_resume_s4(struct pci_dev *pdev) 7707{ 7708 return; 7709} 7710 7711/** 7712 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 7713 * @pdev: pointer to PCI device 7714 * @pid: pointer to PCI device identifier 7715 * 7716 * This routine is to be registered to the kernel's PCI subsystem. When an 7717 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 7718 * at PCI device-specific information of the device and driver to see if the 7719 * driver state that it can support this kind of device. If the match is 7720 * successful, the driver core invokes this routine. This routine dispatches 7721 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 7722 * do all the initialization that it needs to do to handle the HBA device 7723 * properly. 7724 * 7725 * Return code 7726 * 0 - driver can claim the device 7727 * negative value - driver can not claim the device 7728 **/ 7729static int __devinit 7730lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 7731{ 7732 int rc; 7733 struct lpfc_sli_intf intf; 7734 7735 if (pci_read_config_dword(pdev, LPFC_SLIREV_CONF_WORD, &intf.word0)) 7736 return -ENODEV; 7737 7738 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 7739 (bf_get(lpfc_sli_intf_rev, &intf) == LPFC_SLIREV_CONF_SLI4)) 7740 rc = lpfc_pci_probe_one_s4(pdev, pid); 7741 else 7742 rc = lpfc_pci_probe_one_s3(pdev, pid); 7743 7744 return rc; 7745} 7746 7747/** 7748 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 7749 * @pdev: pointer to PCI device 7750 * 7751 * This routine is to be registered to the kernel's PCI subsystem. When an 7752 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 7753 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 7754 * remove routine, which will perform all the necessary cleanup for the 7755 * device to be removed from the PCI subsystem properly. 7756 **/ 7757static void __devexit 7758lpfc_pci_remove_one(struct pci_dev *pdev) 7759{ 7760 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7761 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7762 7763 switch (phba->pci_dev_grp) { 7764 case LPFC_PCI_DEV_LP: 7765 lpfc_pci_remove_one_s3(pdev); 7766 break; 7767 case LPFC_PCI_DEV_OC: 7768 lpfc_pci_remove_one_s4(pdev); 7769 break; 7770 default: 7771 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7772 "1424 Invalid PCI device group: 0x%x\n", 7773 phba->pci_dev_grp); 7774 break; 7775 } 7776 return; 7777} 7778 7779/** 7780 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 7781 * @pdev: pointer to PCI device 7782 * @msg: power management message 7783 * 7784 * This routine is to be registered to the kernel's PCI subsystem to support 7785 * system Power Management (PM). When PM invokes this method, it dispatches 7786 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 7787 * suspend the device. 7788 * 7789 * Return code 7790 * 0 - driver suspended the device 7791 * Error otherwise 7792 **/ 7793static int 7794lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 7795{ 7796 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7797 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7798 int rc = -ENODEV; 7799 7800 switch (phba->pci_dev_grp) { 7801 case LPFC_PCI_DEV_LP: 7802 rc = lpfc_pci_suspend_one_s3(pdev, msg); 7803 break; 7804 case LPFC_PCI_DEV_OC: 7805 rc = lpfc_pci_suspend_one_s4(pdev, msg); 7806 break; 7807 default: 7808 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7809 "1425 Invalid PCI device group: 0x%x\n", 7810 phba->pci_dev_grp); 7811 break; 7812 } 7813 return rc; 7814} 7815 7816/** 7817 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 7818 * @pdev: pointer to PCI device 7819 * 7820 * This routine is to be registered to the kernel's PCI subsystem to support 7821 * system Power Management (PM). When PM invokes this method, it dispatches 7822 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 7823 * resume the device. 7824 * 7825 * Return code 7826 * 0 - driver suspended the device 7827 * Error otherwise 7828 **/ 7829static int 7830lpfc_pci_resume_one(struct pci_dev *pdev) 7831{ 7832 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7833 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7834 int rc = -ENODEV; 7835 7836 switch (phba->pci_dev_grp) { 7837 case LPFC_PCI_DEV_LP: 7838 rc = lpfc_pci_resume_one_s3(pdev); 7839 break; 7840 case LPFC_PCI_DEV_OC: 7841 rc = lpfc_pci_resume_one_s4(pdev); 7842 break; 7843 default: 7844 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7845 "1426 Invalid PCI device group: 0x%x\n", 7846 phba->pci_dev_grp); 7847 break; 7848 } 7849 return rc; 7850} 7851 7852/** 7853 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 7854 * @pdev: pointer to PCI device. 7855 * @state: the current PCI connection state. 7856 * 7857 * This routine is registered to the PCI subsystem for error handling. This 7858 * function is called by the PCI subsystem after a PCI bus error affecting 7859 * this device has been detected. When this routine is invoked, it dispatches 7860 * the action to the proper SLI-3 or SLI-4 device error detected handling 7861 * routine, which will perform the proper error detected operation. 7862 * 7863 * Return codes 7864 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7865 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7866 **/ 7867static pci_ers_result_t 7868lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 7869{ 7870 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7871 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7872 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 7873 7874 switch (phba->pci_dev_grp) { 7875 case LPFC_PCI_DEV_LP: 7876 rc = lpfc_io_error_detected_s3(pdev, state); 7877 break; 7878 case LPFC_PCI_DEV_OC: 7879 rc = lpfc_io_error_detected_s4(pdev, state); 7880 break; 7881 default: 7882 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7883 "1427 Invalid PCI device group: 0x%x\n", 7884 phba->pci_dev_grp); 7885 break; 7886 } 7887 return rc; 7888} 7889 7890/** 7891 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 7892 * @pdev: pointer to PCI device. 7893 * 7894 * This routine is registered to the PCI subsystem for error handling. This 7895 * function is called after PCI bus has been reset to restart the PCI card 7896 * from scratch, as if from a cold-boot. When this routine is invoked, it 7897 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 7898 * routine, which will perform the proper device reset. 7899 * 7900 * Return codes 7901 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7902 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7903 **/ 7904static pci_ers_result_t 7905lpfc_io_slot_reset(struct pci_dev *pdev) 7906{ 7907 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7908 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7909 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 7910 7911 switch (phba->pci_dev_grp) { 7912 case LPFC_PCI_DEV_LP: 7913 rc = lpfc_io_slot_reset_s3(pdev); 7914 break; 7915 case LPFC_PCI_DEV_OC: 7916 rc = lpfc_io_slot_reset_s4(pdev); 7917 break; 7918 default: 7919 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7920 "1428 Invalid PCI device group: 0x%x\n", 7921 phba->pci_dev_grp); 7922 break; 7923 } 7924 return rc; 7925} 7926 7927/** 7928 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 7929 * @pdev: pointer to PCI device 7930 * 7931 * This routine is registered to the PCI subsystem for error handling. It 7932 * is called when kernel error recovery tells the lpfc driver that it is 7933 * OK to resume normal PCI operation after PCI bus error recovery. When 7934 * this routine is invoked, it dispatches the action to the proper SLI-3 7935 * or SLI-4 device io_resume routine, which will resume the device operation. 7936 **/ 7937static void 7938lpfc_io_resume(struct pci_dev *pdev) 7939{ 7940 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7941 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7942 7943 switch (phba->pci_dev_grp) { 7944 case LPFC_PCI_DEV_LP: 7945 lpfc_io_resume_s3(pdev); 7946 break; 7947 case LPFC_PCI_DEV_OC: 7948 lpfc_io_resume_s4(pdev); 7949 break; 7950 default: 7951 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7952 "1429 Invalid PCI device group: 0x%x\n", 7953 phba->pci_dev_grp); 7954 break; 7955 } 7956 return; 7957} 7958 7959static struct pci_device_id lpfc_id_table[] = { 7960 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 7961 PCI_ANY_ID, PCI_ANY_ID, }, 7962 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 7963 PCI_ANY_ID, PCI_ANY_ID, }, 7964 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 7965 PCI_ANY_ID, PCI_ANY_ID, }, 7966 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 7967 PCI_ANY_ID, PCI_ANY_ID, }, 7968 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 7969 PCI_ANY_ID, PCI_ANY_ID, }, 7970 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 7971 PCI_ANY_ID, PCI_ANY_ID, }, 7972 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 7973 PCI_ANY_ID, PCI_ANY_ID, }, 7974 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 7975 PCI_ANY_ID, PCI_ANY_ID, }, 7976 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 7977 PCI_ANY_ID, PCI_ANY_ID, }, 7978 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 7979 PCI_ANY_ID, PCI_ANY_ID, }, 7980 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 7981 PCI_ANY_ID, PCI_ANY_ID, }, 7982 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 7983 PCI_ANY_ID, PCI_ANY_ID, }, 7984 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 7985 PCI_ANY_ID, PCI_ANY_ID, }, 7986 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 7987 PCI_ANY_ID, PCI_ANY_ID, }, 7988 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 7989 PCI_ANY_ID, PCI_ANY_ID, }, 7990 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 7991 PCI_ANY_ID, PCI_ANY_ID, }, 7992 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 7993 PCI_ANY_ID, PCI_ANY_ID, }, 7994 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 7995 PCI_ANY_ID, PCI_ANY_ID, }, 7996 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 7997 PCI_ANY_ID, PCI_ANY_ID, }, 7998 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 7999 PCI_ANY_ID, PCI_ANY_ID, }, 8000 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 8001 PCI_ANY_ID, PCI_ANY_ID, }, 8002 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 8003 PCI_ANY_ID, PCI_ANY_ID, }, 8004 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 8005 PCI_ANY_ID, PCI_ANY_ID, }, 8006 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 8007 PCI_ANY_ID, PCI_ANY_ID, }, 8008 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 8009 PCI_ANY_ID, PCI_ANY_ID, }, 8010 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 8011 PCI_ANY_ID, PCI_ANY_ID, }, 8012 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 8013 PCI_ANY_ID, PCI_ANY_ID, }, 8014 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 8015 PCI_ANY_ID, PCI_ANY_ID, }, 8016 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 8017 PCI_ANY_ID, PCI_ANY_ID, }, 8018 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 8019 PCI_ANY_ID, PCI_ANY_ID, }, 8020 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 8021 PCI_ANY_ID, PCI_ANY_ID, }, 8022 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 8023 PCI_ANY_ID, PCI_ANY_ID, }, 8024 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 8025 PCI_ANY_ID, PCI_ANY_ID, }, 8026 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 8027 PCI_ANY_ID, PCI_ANY_ID, }, 8028 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 8029 PCI_ANY_ID, PCI_ANY_ID, }, 8030 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 8031 PCI_ANY_ID, PCI_ANY_ID, }, 8032 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 8033 PCI_ANY_ID, PCI_ANY_ID, }, 8034 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 8035 PCI_ANY_ID, PCI_ANY_ID, }, 8036 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TS_BE3, 8037 PCI_ANY_ID, PCI_ANY_ID, }, 8038 { 0 } 8039}; 8040 8041MODULE_DEVICE_TABLE(pci, lpfc_id_table); 8042 8043static struct pci_error_handlers lpfc_err_handler = { 8044 .error_detected = lpfc_io_error_detected, 8045 .slot_reset = lpfc_io_slot_reset, 8046 .resume = lpfc_io_resume, 8047}; 8048 8049static struct pci_driver lpfc_driver = { 8050 .name = LPFC_DRIVER_NAME, 8051 .id_table = lpfc_id_table, 8052 .probe = lpfc_pci_probe_one, 8053 .remove = __devexit_p(lpfc_pci_remove_one), 8054 .suspend = lpfc_pci_suspend_one, 8055 .resume = lpfc_pci_resume_one, 8056 .err_handler = &lpfc_err_handler, 8057}; 8058 8059/** 8060 * lpfc_init - lpfc module initialization routine 8061 * 8062 * This routine is to be invoked when the lpfc module is loaded into the 8063 * kernel. The special kernel macro module_init() is used to indicate the 8064 * role of this routine to the kernel as lpfc module entry point. 8065 * 8066 * Return codes 8067 * 0 - successful 8068 * -ENOMEM - FC attach transport failed 8069 * all others - failed 8070 */ 8071static int __init 8072lpfc_init(void) 8073{ 8074 int error = 0; 8075 8076 printk(LPFC_MODULE_DESC "\n"); 8077 printk(LPFC_COPYRIGHT "\n"); 8078 8079 if (lpfc_enable_npiv) { 8080 lpfc_transport_functions.vport_create = lpfc_vport_create; 8081 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 8082 } 8083 lpfc_transport_template = 8084 fc_attach_transport(&lpfc_transport_functions); 8085 if (lpfc_transport_template == NULL) 8086 return -ENOMEM; 8087 if (lpfc_enable_npiv) { 8088 lpfc_vport_transport_template = 8089 fc_attach_transport(&lpfc_vport_transport_functions); 8090 if (lpfc_vport_transport_template == NULL) { 8091 fc_release_transport(lpfc_transport_template); 8092 return -ENOMEM; 8093 } 8094 } 8095 error = pci_register_driver(&lpfc_driver); 8096 if (error) { 8097 fc_release_transport(lpfc_transport_template); 8098 if (lpfc_enable_npiv) 8099 fc_release_transport(lpfc_vport_transport_template); 8100 } 8101 8102 return error; 8103} 8104 8105/** 8106 * lpfc_exit - lpfc module removal routine 8107 * 8108 * This routine is invoked when the lpfc module is removed from the kernel. 8109 * The special kernel macro module_exit() is used to indicate the role of 8110 * this routine to the kernel as lpfc module exit point. 8111 */ 8112static void __exit 8113lpfc_exit(void) 8114{ 8115 pci_unregister_driver(&lpfc_driver); 8116 fc_release_transport(lpfc_transport_template); 8117 if (lpfc_enable_npiv) 8118 fc_release_transport(lpfc_vport_transport_template); 8119 if (_dump_buf_data) { 8120 printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_data " 8121 "at 0x%p\n", 8122 (1L << _dump_buf_data_order), _dump_buf_data); 8123 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 8124 } 8125 8126 if (_dump_buf_dif) { 8127 printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_dif " 8128 "at 0x%p\n", 8129 (1L << _dump_buf_dif_order), _dump_buf_dif); 8130 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 8131 } 8132} 8133 8134module_init(lpfc_init); 8135module_exit(lpfc_exit); 8136MODULE_LICENSE("GPL"); 8137MODULE_DESCRIPTION(LPFC_MODULE_DESC); 8138MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 8139MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 8140