lpfc_init.c revision da0436e915a5c17ee79e72c1bf978a4ebb1cbf4d
1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2008 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->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); 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 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 225 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 226 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 227 lpfc_vpd_data + offset, 228 mb->un.varDmp.word_cnt); 229 offset += mb->un.varDmp.word_cnt; 230 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 231 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 232 233 kfree(lpfc_vpd_data); 234out_free_mbox: 235 mempool_free(pmb, phba->mbox_mem_pool); 236 return 0; 237} 238 239/** 240 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 241 * @phba: pointer to lpfc hba data structure. 242 * @pmboxq: pointer to the driver internal queue element for mailbox command. 243 * 244 * This is the completion handler for driver's configuring asynchronous event 245 * mailbox command to the device. If the mailbox command returns successfully, 246 * it will set internal async event support flag to 1; otherwise, it will 247 * set internal async event support flag to 0. 248 **/ 249static void 250lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 251{ 252 if (pmboxq->mb.mbxStatus == MBX_SUCCESS) 253 phba->temp_sensor_support = 1; 254 else 255 phba->temp_sensor_support = 0; 256 mempool_free(pmboxq, phba->mbox_mem_pool); 257 return; 258} 259 260/** 261 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 262 * @phba: pointer to lpfc hba data structure. 263 * @pmboxq: pointer to the driver internal queue element for mailbox command. 264 * 265 * This is the completion handler for dump mailbox command for getting 266 * wake up parameters. When this command complete, the response contain 267 * Option rom version of the HBA. This function translate the version number 268 * into a human readable string and store it in OptionROMVersion. 269 **/ 270static void 271lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 272{ 273 struct prog_id *prg; 274 uint32_t prog_id_word; 275 char dist = ' '; 276 /* character array used for decoding dist type. */ 277 char dist_char[] = "nabx"; 278 279 if (pmboxq->mb.mbxStatus != MBX_SUCCESS) { 280 mempool_free(pmboxq, phba->mbox_mem_pool); 281 return; 282 } 283 284 prg = (struct prog_id *) &prog_id_word; 285 286 /* word 7 contain option rom version */ 287 prog_id_word = pmboxq->mb.un.varWords[7]; 288 289 /* Decode the Option rom version word to a readable string */ 290 if (prg->dist < 4) 291 dist = dist_char[prg->dist]; 292 293 if ((prg->dist == 3) && (prg->num == 0)) 294 sprintf(phba->OptionROMVersion, "%d.%d%d", 295 prg->ver, prg->rev, prg->lev); 296 else 297 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 298 prg->ver, prg->rev, prg->lev, 299 dist, prg->num); 300 mempool_free(pmboxq, phba->mbox_mem_pool); 301 return; 302} 303 304/** 305 * lpfc_config_port_post - Perform lpfc initialization after config port 306 * @phba: pointer to lpfc hba data structure. 307 * 308 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 309 * command call. It performs all internal resource and state setups on the 310 * port: post IOCB buffers, enable appropriate host interrupt attentions, 311 * ELS ring timers, etc. 312 * 313 * Return codes 314 * 0 - success. 315 * Any other value - error. 316 **/ 317int 318lpfc_config_port_post(struct lpfc_hba *phba) 319{ 320 struct lpfc_vport *vport = phba->pport; 321 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 322 LPFC_MBOXQ_t *pmb; 323 MAILBOX_t *mb; 324 struct lpfc_dmabuf *mp; 325 struct lpfc_sli *psli = &phba->sli; 326 uint32_t status, timeout; 327 int i, j; 328 int rc; 329 330 spin_lock_irq(&phba->hbalock); 331 /* 332 * If the Config port completed correctly the HBA is not 333 * over heated any more. 334 */ 335 if (phba->over_temp_state == HBA_OVER_TEMP) 336 phba->over_temp_state = HBA_NORMAL_TEMP; 337 spin_unlock_irq(&phba->hbalock); 338 339 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 340 if (!pmb) { 341 phba->link_state = LPFC_HBA_ERROR; 342 return -ENOMEM; 343 } 344 mb = &pmb->mb; 345 346 /* Get login parameters for NID. */ 347 lpfc_read_sparam(phba, pmb, 0); 348 pmb->vport = vport; 349 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 350 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 351 "0448 Adapter failed init, mbxCmd x%x " 352 "READ_SPARM mbxStatus x%x\n", 353 mb->mbxCommand, mb->mbxStatus); 354 phba->link_state = LPFC_HBA_ERROR; 355 mp = (struct lpfc_dmabuf *) pmb->context1; 356 mempool_free( pmb, phba->mbox_mem_pool); 357 lpfc_mbuf_free(phba, mp->virt, mp->phys); 358 kfree(mp); 359 return -EIO; 360 } 361 362 mp = (struct lpfc_dmabuf *) pmb->context1; 363 364 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 365 lpfc_mbuf_free(phba, mp->virt, mp->phys); 366 kfree(mp); 367 pmb->context1 = NULL; 368 369 if (phba->cfg_soft_wwnn) 370 u64_to_wwn(phba->cfg_soft_wwnn, 371 vport->fc_sparam.nodeName.u.wwn); 372 if (phba->cfg_soft_wwpn) 373 u64_to_wwn(phba->cfg_soft_wwpn, 374 vport->fc_sparam.portName.u.wwn); 375 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 376 sizeof (struct lpfc_name)); 377 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 378 sizeof (struct lpfc_name)); 379 380 /* Update the fc_host data structures with new wwn. */ 381 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 382 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 383 384 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 385 /* This should be consolidated into parse_vpd ? - mr */ 386 if (phba->SerialNumber[0] == 0) { 387 uint8_t *outptr; 388 389 outptr = &vport->fc_nodename.u.s.IEEE[0]; 390 for (i = 0; i < 12; i++) { 391 status = *outptr++; 392 j = ((status & 0xf0) >> 4); 393 if (j <= 9) 394 phba->SerialNumber[i] = 395 (char)((uint8_t) 0x30 + (uint8_t) j); 396 else 397 phba->SerialNumber[i] = 398 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 399 i++; 400 j = (status & 0xf); 401 if (j <= 9) 402 phba->SerialNumber[i] = 403 (char)((uint8_t) 0x30 + (uint8_t) j); 404 else 405 phba->SerialNumber[i] = 406 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 407 } 408 } 409 410 lpfc_read_config(phba, pmb); 411 pmb->vport = vport; 412 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 413 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 414 "0453 Adapter failed to init, mbxCmd x%x " 415 "READ_CONFIG, mbxStatus x%x\n", 416 mb->mbxCommand, mb->mbxStatus); 417 phba->link_state = LPFC_HBA_ERROR; 418 mempool_free( pmb, phba->mbox_mem_pool); 419 return -EIO; 420 } 421 422 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 423 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 424 phba->cfg_hba_queue_depth = 425 mb->un.varRdConfig.max_xri + 1; 426 427 phba->lmt = mb->un.varRdConfig.lmt; 428 429 /* Get the default values for Model Name and Description */ 430 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 431 432 if ((phba->cfg_link_speed > LINK_SPEED_10G) 433 || ((phba->cfg_link_speed == LINK_SPEED_1G) 434 && !(phba->lmt & LMT_1Gb)) 435 || ((phba->cfg_link_speed == LINK_SPEED_2G) 436 && !(phba->lmt & LMT_2Gb)) 437 || ((phba->cfg_link_speed == LINK_SPEED_4G) 438 && !(phba->lmt & LMT_4Gb)) 439 || ((phba->cfg_link_speed == LINK_SPEED_8G) 440 && !(phba->lmt & LMT_8Gb)) 441 || ((phba->cfg_link_speed == LINK_SPEED_10G) 442 && !(phba->lmt & LMT_10Gb))) { 443 /* Reset link speed to auto */ 444 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT, 445 "1302 Invalid speed for this board: " 446 "Reset link speed to auto: x%x\n", 447 phba->cfg_link_speed); 448 phba->cfg_link_speed = LINK_SPEED_AUTO; 449 } 450 451 phba->link_state = LPFC_LINK_DOWN; 452 453 /* Only process IOCBs on ELS ring till hba_state is READY */ 454 if (psli->ring[psli->extra_ring].cmdringaddr) 455 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 456 if (psli->ring[psli->fcp_ring].cmdringaddr) 457 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 458 if (psli->ring[psli->next_ring].cmdringaddr) 459 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 460 461 /* Post receive buffers for desired rings */ 462 if (phba->sli_rev != 3) 463 lpfc_post_rcv_buf(phba); 464 465 /* 466 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 467 */ 468 if (phba->intr_type == MSIX) { 469 rc = lpfc_config_msi(phba, pmb); 470 if (rc) { 471 mempool_free(pmb, phba->mbox_mem_pool); 472 return -EIO; 473 } 474 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 475 if (rc != MBX_SUCCESS) { 476 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 477 "0352 Config MSI mailbox command " 478 "failed, mbxCmd x%x, mbxStatus x%x\n", 479 pmb->mb.mbxCommand, pmb->mb.mbxStatus); 480 mempool_free(pmb, phba->mbox_mem_pool); 481 return -EIO; 482 } 483 } 484 485 /* Initialize ERATT handling flag */ 486 phba->hba_flag &= ~HBA_ERATT_HANDLED; 487 488 /* Enable appropriate host interrupts */ 489 spin_lock_irq(&phba->hbalock); 490 status = readl(phba->HCregaddr); 491 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 492 if (psli->num_rings > 0) 493 status |= HC_R0INT_ENA; 494 if (psli->num_rings > 1) 495 status |= HC_R1INT_ENA; 496 if (psli->num_rings > 2) 497 status |= HC_R2INT_ENA; 498 if (psli->num_rings > 3) 499 status |= HC_R3INT_ENA; 500 501 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 502 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 503 status &= ~(HC_R0INT_ENA); 504 505 writel(status, phba->HCregaddr); 506 readl(phba->HCregaddr); /* flush */ 507 spin_unlock_irq(&phba->hbalock); 508 509 /* Set up ring-0 (ELS) timer */ 510 timeout = phba->fc_ratov * 2; 511 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 512 /* Set up heart beat (HB) timer */ 513 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 514 phba->hb_outstanding = 0; 515 phba->last_completion_time = jiffies; 516 /* Set up error attention (ERATT) polling timer */ 517 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 518 519 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed); 520 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 521 lpfc_set_loopback_flag(phba); 522 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 523 if (rc != MBX_SUCCESS) { 524 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 525 "0454 Adapter failed to init, mbxCmd x%x " 526 "INIT_LINK, mbxStatus x%x\n", 527 mb->mbxCommand, mb->mbxStatus); 528 529 /* Clear all interrupt enable conditions */ 530 writel(0, phba->HCregaddr); 531 readl(phba->HCregaddr); /* flush */ 532 /* Clear all pending interrupts */ 533 writel(0xffffffff, phba->HAregaddr); 534 readl(phba->HAregaddr); /* flush */ 535 536 phba->link_state = LPFC_HBA_ERROR; 537 if (rc != MBX_BUSY) 538 mempool_free(pmb, phba->mbox_mem_pool); 539 return -EIO; 540 } 541 /* MBOX buffer will be freed in mbox compl */ 542 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 543 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 544 pmb->mbox_cmpl = lpfc_config_async_cmpl; 545 pmb->vport = phba->pport; 546 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 547 548 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 549 lpfc_printf_log(phba, 550 KERN_ERR, 551 LOG_INIT, 552 "0456 Adapter failed to issue " 553 "ASYNCEVT_ENABLE mbox status x%x \n.", 554 rc); 555 mempool_free(pmb, phba->mbox_mem_pool); 556 } 557 558 /* Get Option rom version */ 559 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 560 lpfc_dump_wakeup_param(phba, pmb); 561 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 562 pmb->vport = phba->pport; 563 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 564 565 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 566 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 567 "to get Option ROM version status x%x\n.", rc); 568 mempool_free(pmb, phba->mbox_mem_pool); 569 } 570 571 return 0; 572} 573 574/** 575 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 576 * @phba: pointer to lpfc HBA data structure. 577 * 578 * This routine will do LPFC uninitialization before the HBA is reset when 579 * bringing down the SLI Layer. 580 * 581 * Return codes 582 * 0 - success. 583 * Any other value - error. 584 **/ 585int 586lpfc_hba_down_prep(struct lpfc_hba *phba) 587{ 588 struct lpfc_vport **vports; 589 int i; 590 591 if (phba->sli_rev <= LPFC_SLI_REV3) { 592 /* Disable interrupts */ 593 writel(0, phba->HCregaddr); 594 readl(phba->HCregaddr); /* flush */ 595 } 596 597 if (phba->pport->load_flag & FC_UNLOADING) 598 lpfc_cleanup_discovery_resources(phba->pport); 599 else { 600 vports = lpfc_create_vport_work_array(phba); 601 if (vports != NULL) 602 for (i = 0; i <= phba->max_vports && 603 vports[i] != NULL; i++) 604 lpfc_cleanup_discovery_resources(vports[i]); 605 lpfc_destroy_vport_work_array(phba, vports); 606 } 607 return 0; 608} 609 610/** 611 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 612 * @phba: pointer to lpfc HBA data structure. 613 * 614 * This routine will do uninitialization after the HBA is reset when bring 615 * down the SLI Layer. 616 * 617 * Return codes 618 * 0 - sucess. 619 * Any other value - error. 620 **/ 621static int 622lpfc_hba_down_post_s3(struct lpfc_hba *phba) 623{ 624 struct lpfc_sli *psli = &phba->sli; 625 struct lpfc_sli_ring *pring; 626 struct lpfc_dmabuf *mp, *next_mp; 627 LIST_HEAD(completions); 628 int i; 629 630 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 631 lpfc_sli_hbqbuf_free_all(phba); 632 else { 633 /* Cleanup preposted buffers on the ELS ring */ 634 pring = &psli->ring[LPFC_ELS_RING]; 635 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 636 list_del(&mp->list); 637 pring->postbufq_cnt--; 638 lpfc_mbuf_free(phba, mp->virt, mp->phys); 639 kfree(mp); 640 } 641 } 642 643 spin_lock_irq(&phba->hbalock); 644 for (i = 0; i < psli->num_rings; i++) { 645 pring = &psli->ring[i]; 646 647 /* At this point in time the HBA is either reset or DOA. Either 648 * way, nothing should be on txcmplq as it will NEVER complete. 649 */ 650 list_splice_init(&pring->txcmplq, &completions); 651 pring->txcmplq_cnt = 0; 652 spin_unlock_irq(&phba->hbalock); 653 654 /* Cancel all the IOCBs from the completions list */ 655 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 656 IOERR_SLI_ABORTED); 657 658 lpfc_sli_abort_iocb_ring(phba, pring); 659 spin_lock_irq(&phba->hbalock); 660 } 661 spin_unlock_irq(&phba->hbalock); 662 663 return 0; 664} 665/** 666 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 667 * @phba: pointer to lpfc HBA data structure. 668 * 669 * This routine will do uninitialization after the HBA is reset when bring 670 * down the SLI Layer. 671 * 672 * Return codes 673 * 0 - sucess. 674 * Any other value - error. 675 **/ 676static int 677lpfc_hba_down_post_s4(struct lpfc_hba *phba) 678{ 679 struct lpfc_scsi_buf *psb, *psb_next; 680 LIST_HEAD(aborts); 681 int ret; 682 unsigned long iflag = 0; 683 ret = lpfc_hba_down_post_s3(phba); 684 if (ret) 685 return ret; 686 /* At this point in time the HBA is either reset or DOA. Either 687 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 688 * on the lpfc_sgl_list so that it can either be freed if the 689 * driver is unloading or reposted if the driver is restarting 690 * the port. 691 */ 692 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 693 /* scsl_buf_list */ 694 /* abts_sgl_list_lock required because worker thread uses this 695 * list. 696 */ 697 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 698 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 699 &phba->sli4_hba.lpfc_sgl_list); 700 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 701 /* abts_scsi_buf_list_lock required because worker thread uses this 702 * list. 703 */ 704 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 705 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 706 &aborts); 707 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 708 spin_unlock_irq(&phba->hbalock); 709 710 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 711 psb->pCmd = NULL; 712 psb->status = IOSTAT_SUCCESS; 713 } 714 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 715 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 716 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 717 return 0; 718} 719 720/** 721 * lpfc_hba_down_post - Wrapper func for hba down post routine 722 * @phba: pointer to lpfc HBA data structure. 723 * 724 * This routine wraps the actual SLI3 or SLI4 routine for performing 725 * uninitialization after the HBA is reset when bring down the SLI Layer. 726 * 727 * Return codes 728 * 0 - sucess. 729 * Any other value - error. 730 **/ 731int 732lpfc_hba_down_post(struct lpfc_hba *phba) 733{ 734 return (*phba->lpfc_hba_down_post)(phba); 735} 736 737/** 738 * lpfc_hb_timeout - The HBA-timer timeout handler 739 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 740 * 741 * This is the HBA-timer timeout handler registered to the lpfc driver. When 742 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 743 * work-port-events bitmap and the worker thread is notified. This timeout 744 * event will be used by the worker thread to invoke the actual timeout 745 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 746 * be performed in the timeout handler and the HBA timeout event bit shall 747 * be cleared by the worker thread after it has taken the event bitmap out. 748 **/ 749static void 750lpfc_hb_timeout(unsigned long ptr) 751{ 752 struct lpfc_hba *phba; 753 uint32_t tmo_posted; 754 unsigned long iflag; 755 756 phba = (struct lpfc_hba *)ptr; 757 758 /* Check for heart beat timeout conditions */ 759 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 760 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 761 if (!tmo_posted) 762 phba->pport->work_port_events |= WORKER_HB_TMO; 763 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 764 765 /* Tell the worker thread there is work to do */ 766 if (!tmo_posted) 767 lpfc_worker_wake_up(phba); 768 return; 769} 770 771/** 772 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 773 * @phba: pointer to lpfc hba data structure. 774 * @pmboxq: pointer to the driver internal queue element for mailbox command. 775 * 776 * This is the callback function to the lpfc heart-beat mailbox command. 777 * If configured, the lpfc driver issues the heart-beat mailbox command to 778 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 779 * heart-beat mailbox command is issued, the driver shall set up heart-beat 780 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 781 * heart-beat outstanding state. Once the mailbox command comes back and 782 * no error conditions detected, the heart-beat mailbox command timer is 783 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 784 * state is cleared for the next heart-beat. If the timer expired with the 785 * heart-beat outstanding state set, the driver will put the HBA offline. 786 **/ 787static void 788lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 789{ 790 unsigned long drvr_flag; 791 792 spin_lock_irqsave(&phba->hbalock, drvr_flag); 793 phba->hb_outstanding = 0; 794 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 795 796 /* Check and reset heart-beat timer is necessary */ 797 mempool_free(pmboxq, phba->mbox_mem_pool); 798 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 799 !(phba->link_state == LPFC_HBA_ERROR) && 800 !(phba->pport->load_flag & FC_UNLOADING)) 801 mod_timer(&phba->hb_tmofunc, 802 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 803 return; 804} 805 806/** 807 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 808 * @phba: pointer to lpfc hba data structure. 809 * 810 * This is the actual HBA-timer timeout handler to be invoked by the worker 811 * thread whenever the HBA timer fired and HBA-timeout event posted. This 812 * handler performs any periodic operations needed for the device. If such 813 * periodic event has already been attended to either in the interrupt handler 814 * or by processing slow-ring or fast-ring events within the HBA-timer 815 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 816 * the timer for the next timeout period. If lpfc heart-beat mailbox command 817 * is configured and there is no heart-beat mailbox command outstanding, a 818 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 819 * has been a heart-beat mailbox command outstanding, the HBA shall be put 820 * to offline. 821 **/ 822void 823lpfc_hb_timeout_handler(struct lpfc_hba *phba) 824{ 825 LPFC_MBOXQ_t *pmboxq; 826 struct lpfc_dmabuf *buf_ptr; 827 int retval; 828 struct lpfc_sli *psli = &phba->sli; 829 LIST_HEAD(completions); 830 831 if ((phba->link_state == LPFC_HBA_ERROR) || 832 (phba->pport->load_flag & FC_UNLOADING) || 833 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 834 return; 835 836 spin_lock_irq(&phba->pport->work_port_lock); 837 838 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 839 jiffies)) { 840 spin_unlock_irq(&phba->pport->work_port_lock); 841 if (!phba->hb_outstanding) 842 mod_timer(&phba->hb_tmofunc, 843 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 844 else 845 mod_timer(&phba->hb_tmofunc, 846 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 847 return; 848 } 849 spin_unlock_irq(&phba->pport->work_port_lock); 850 851 if (phba->elsbuf_cnt && 852 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 853 spin_lock_irq(&phba->hbalock); 854 list_splice_init(&phba->elsbuf, &completions); 855 phba->elsbuf_cnt = 0; 856 phba->elsbuf_prev_cnt = 0; 857 spin_unlock_irq(&phba->hbalock); 858 859 while (!list_empty(&completions)) { 860 list_remove_head(&completions, buf_ptr, 861 struct lpfc_dmabuf, list); 862 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 863 kfree(buf_ptr); 864 } 865 } 866 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 867 868 /* If there is no heart beat outstanding, issue a heartbeat command */ 869 if (phba->cfg_enable_hba_heartbeat) { 870 if (!phba->hb_outstanding) { 871 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 872 if (!pmboxq) { 873 mod_timer(&phba->hb_tmofunc, 874 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 875 return; 876 } 877 878 lpfc_heart_beat(phba, pmboxq); 879 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 880 pmboxq->vport = phba->pport; 881 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); 882 883 if (retval != MBX_BUSY && retval != MBX_SUCCESS) { 884 mempool_free(pmboxq, phba->mbox_mem_pool); 885 mod_timer(&phba->hb_tmofunc, 886 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 887 return; 888 } 889 mod_timer(&phba->hb_tmofunc, 890 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 891 phba->hb_outstanding = 1; 892 return; 893 } else { 894 /* 895 * If heart beat timeout called with hb_outstanding set 896 * we need to take the HBA offline. 897 */ 898 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 899 "0459 Adapter heartbeat failure, " 900 "taking this port offline.\n"); 901 902 spin_lock_irq(&phba->hbalock); 903 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 904 spin_unlock_irq(&phba->hbalock); 905 906 lpfc_offline_prep(phba); 907 lpfc_offline(phba); 908 lpfc_unblock_mgmt_io(phba); 909 phba->link_state = LPFC_HBA_ERROR; 910 lpfc_hba_down_post(phba); 911 } 912 } 913} 914 915/** 916 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 917 * @phba: pointer to lpfc hba data structure. 918 * 919 * This routine is called to bring the HBA offline when HBA hardware error 920 * other than Port Error 6 has been detected. 921 **/ 922static void 923lpfc_offline_eratt(struct lpfc_hba *phba) 924{ 925 struct lpfc_sli *psli = &phba->sli; 926 927 spin_lock_irq(&phba->hbalock); 928 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 929 spin_unlock_irq(&phba->hbalock); 930 lpfc_offline_prep(phba); 931 932 lpfc_offline(phba); 933 lpfc_reset_barrier(phba); 934 lpfc_sli_brdreset(phba); 935 lpfc_hba_down_post(phba); 936 lpfc_sli_brdready(phba, HS_MBRDY); 937 lpfc_unblock_mgmt_io(phba); 938 phba->link_state = LPFC_HBA_ERROR; 939 return; 940} 941 942/** 943 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 944 * @phba: pointer to lpfc hba data structure. 945 * 946 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 947 * other than Port Error 6 has been detected. 948 **/ 949static void 950lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 951{ 952 lpfc_offline_prep(phba); 953 lpfc_offline(phba); 954 lpfc_sli4_brdreset(phba); 955 lpfc_hba_down_post(phba); 956 lpfc_sli4_post_status_check(phba); 957 lpfc_unblock_mgmt_io(phba); 958 phba->link_state = LPFC_HBA_ERROR; 959} 960 961/** 962 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 963 * @phba: pointer to lpfc hba data structure. 964 * 965 * This routine is invoked to handle the deferred HBA hardware error 966 * conditions. This type of error is indicated by HBA by setting ER1 967 * and another ER bit in the host status register. The driver will 968 * wait until the ER1 bit clears before handling the error condition. 969 **/ 970static void 971lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 972{ 973 uint32_t old_host_status = phba->work_hs; 974 struct lpfc_sli_ring *pring; 975 struct lpfc_sli *psli = &phba->sli; 976 977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 978 "0479 Deferred Adapter Hardware Error " 979 "Data: x%x x%x x%x\n", 980 phba->work_hs, 981 phba->work_status[0], phba->work_status[1]); 982 983 spin_lock_irq(&phba->hbalock); 984 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 985 spin_unlock_irq(&phba->hbalock); 986 987 988 /* 989 * Firmware stops when it triggred erratt. That could cause the I/Os 990 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 991 * SCSI layer retry it after re-establishing link. 992 */ 993 pring = &psli->ring[psli->fcp_ring]; 994 lpfc_sli_abort_iocb_ring(phba, pring); 995 996 /* 997 * There was a firmware error. Take the hba offline and then 998 * attempt to restart it. 999 */ 1000 lpfc_offline_prep(phba); 1001 lpfc_offline(phba); 1002 1003 /* Wait for the ER1 bit to clear.*/ 1004 while (phba->work_hs & HS_FFER1) { 1005 msleep(100); 1006 phba->work_hs = readl(phba->HSregaddr); 1007 /* If driver is unloading let the worker thread continue */ 1008 if (phba->pport->load_flag & FC_UNLOADING) { 1009 phba->work_hs = 0; 1010 break; 1011 } 1012 } 1013 1014 /* 1015 * This is to ptrotect against a race condition in which 1016 * first write to the host attention register clear the 1017 * host status register. 1018 */ 1019 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1020 phba->work_hs = old_host_status & ~HS_FFER1; 1021 1022 spin_lock_irq(&phba->hbalock); 1023 phba->hba_flag &= ~DEFER_ERATT; 1024 spin_unlock_irq(&phba->hbalock); 1025 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1026 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1027} 1028 1029static void 1030lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1031{ 1032 struct lpfc_board_event_header board_event; 1033 struct Scsi_Host *shost; 1034 1035 board_event.event_type = FC_REG_BOARD_EVENT; 1036 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1037 shost = lpfc_shost_from_vport(phba->pport); 1038 fc_host_post_vendor_event(shost, fc_get_event_number(), 1039 sizeof(board_event), 1040 (char *) &board_event, 1041 LPFC_NL_VENDOR_ID); 1042} 1043 1044/** 1045 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1046 * @phba: pointer to lpfc hba data structure. 1047 * 1048 * This routine is invoked to handle the following HBA hardware error 1049 * conditions: 1050 * 1 - HBA error attention interrupt 1051 * 2 - DMA ring index out of range 1052 * 3 - Mailbox command came back as unknown 1053 **/ 1054static void 1055lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1056{ 1057 struct lpfc_vport *vport = phba->pport; 1058 struct lpfc_sli *psli = &phba->sli; 1059 struct lpfc_sli_ring *pring; 1060 uint32_t event_data; 1061 unsigned long temperature; 1062 struct temp_event temp_event_data; 1063 struct Scsi_Host *shost; 1064 1065 /* If the pci channel is offline, ignore possible errors, 1066 * since we cannot communicate with the pci card anyway. 1067 */ 1068 if (pci_channel_offline(phba->pcidev)) { 1069 spin_lock_irq(&phba->hbalock); 1070 phba->hba_flag &= ~DEFER_ERATT; 1071 spin_unlock_irq(&phba->hbalock); 1072 return; 1073 } 1074 1075 /* If resets are disabled then leave the HBA alone and return */ 1076 if (!phba->cfg_enable_hba_reset) 1077 return; 1078 1079 /* Send an internal error event to mgmt application */ 1080 lpfc_board_errevt_to_mgmt(phba); 1081 1082 if (phba->hba_flag & DEFER_ERATT) 1083 lpfc_handle_deferred_eratt(phba); 1084 1085 if (phba->work_hs & HS_FFER6) { 1086 /* Re-establishing Link */ 1087 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1088 "1301 Re-establishing Link " 1089 "Data: x%x x%x x%x\n", 1090 phba->work_hs, 1091 phba->work_status[0], phba->work_status[1]); 1092 1093 spin_lock_irq(&phba->hbalock); 1094 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 1095 spin_unlock_irq(&phba->hbalock); 1096 1097 /* 1098 * Firmware stops when it triggled erratt with HS_FFER6. 1099 * That could cause the I/Os dropped by the firmware. 1100 * Error iocb (I/O) on txcmplq and let the SCSI layer 1101 * retry it after re-establishing link. 1102 */ 1103 pring = &psli->ring[psli->fcp_ring]; 1104 lpfc_sli_abort_iocb_ring(phba, pring); 1105 1106 /* 1107 * There was a firmware error. Take the hba offline and then 1108 * attempt to restart it. 1109 */ 1110 lpfc_offline_prep(phba); 1111 lpfc_offline(phba); 1112 lpfc_sli_brdrestart(phba); 1113 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1114 lpfc_unblock_mgmt_io(phba); 1115 return; 1116 } 1117 lpfc_unblock_mgmt_io(phba); 1118 } else if (phba->work_hs & HS_CRIT_TEMP) { 1119 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1120 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1121 temp_event_data.event_code = LPFC_CRIT_TEMP; 1122 temp_event_data.data = (uint32_t)temperature; 1123 1124 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1125 "0406 Adapter maximum temperature exceeded " 1126 "(%ld), taking this port offline " 1127 "Data: x%x x%x x%x\n", 1128 temperature, phba->work_hs, 1129 phba->work_status[0], phba->work_status[1]); 1130 1131 shost = lpfc_shost_from_vport(phba->pport); 1132 fc_host_post_vendor_event(shost, fc_get_event_number(), 1133 sizeof(temp_event_data), 1134 (char *) &temp_event_data, 1135 SCSI_NL_VID_TYPE_PCI 1136 | PCI_VENDOR_ID_EMULEX); 1137 1138 spin_lock_irq(&phba->hbalock); 1139 phba->over_temp_state = HBA_OVER_TEMP; 1140 spin_unlock_irq(&phba->hbalock); 1141 lpfc_offline_eratt(phba); 1142 1143 } else { 1144 /* The if clause above forces this code path when the status 1145 * failure is a value other than FFER6. Do not call the offline 1146 * twice. This is the adapter hardware error path. 1147 */ 1148 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1149 "0457 Adapter Hardware Error " 1150 "Data: x%x x%x x%x\n", 1151 phba->work_hs, 1152 phba->work_status[0], phba->work_status[1]); 1153 1154 event_data = FC_REG_DUMP_EVENT; 1155 shost = lpfc_shost_from_vport(vport); 1156 fc_host_post_vendor_event(shost, fc_get_event_number(), 1157 sizeof(event_data), (char *) &event_data, 1158 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1159 1160 lpfc_offline_eratt(phba); 1161 } 1162 return; 1163} 1164 1165/** 1166 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1167 * @phba: pointer to lpfc hba data structure. 1168 * 1169 * This routine is invoked to handle the SLI4 HBA hardware error attention 1170 * conditions. 1171 **/ 1172static void 1173lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1174{ 1175 struct lpfc_vport *vport = phba->pport; 1176 uint32_t event_data; 1177 struct Scsi_Host *shost; 1178 1179 /* If the pci channel is offline, ignore possible errors, since 1180 * we cannot communicate with the pci card anyway. 1181 */ 1182 if (pci_channel_offline(phba->pcidev)) 1183 return; 1184 /* If resets are disabled then leave the HBA alone and return */ 1185 if (!phba->cfg_enable_hba_reset) 1186 return; 1187 1188 /* Send an internal error event to mgmt application */ 1189 lpfc_board_errevt_to_mgmt(phba); 1190 1191 /* For now, the actual action for SLI4 device handling is not 1192 * specified yet, just treated it as adaptor hardware failure 1193 */ 1194 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1195 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n", 1196 phba->work_status[0], phba->work_status[1]); 1197 1198 event_data = FC_REG_DUMP_EVENT; 1199 shost = lpfc_shost_from_vport(vport); 1200 fc_host_post_vendor_event(shost, fc_get_event_number(), 1201 sizeof(event_data), (char *) &event_data, 1202 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1203 1204 lpfc_sli4_offline_eratt(phba); 1205} 1206 1207/** 1208 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1209 * @phba: pointer to lpfc HBA data structure. 1210 * 1211 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1212 * routine from the API jump table function pointer from the lpfc_hba struct. 1213 * 1214 * Return codes 1215 * 0 - sucess. 1216 * Any other value - error. 1217 **/ 1218void 1219lpfc_handle_eratt(struct lpfc_hba *phba) 1220{ 1221 (*phba->lpfc_handle_eratt)(phba); 1222} 1223 1224/** 1225 * lpfc_handle_latt - The HBA link event handler 1226 * @phba: pointer to lpfc hba data structure. 1227 * 1228 * This routine is invoked from the worker thread to handle a HBA host 1229 * attention link event. 1230 **/ 1231void 1232lpfc_handle_latt(struct lpfc_hba *phba) 1233{ 1234 struct lpfc_vport *vport = phba->pport; 1235 struct lpfc_sli *psli = &phba->sli; 1236 LPFC_MBOXQ_t *pmb; 1237 volatile uint32_t control; 1238 struct lpfc_dmabuf *mp; 1239 int rc = 0; 1240 1241 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1242 if (!pmb) { 1243 rc = 1; 1244 goto lpfc_handle_latt_err_exit; 1245 } 1246 1247 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1248 if (!mp) { 1249 rc = 2; 1250 goto lpfc_handle_latt_free_pmb; 1251 } 1252 1253 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1254 if (!mp->virt) { 1255 rc = 3; 1256 goto lpfc_handle_latt_free_mp; 1257 } 1258 1259 /* Cleanup any outstanding ELS commands */ 1260 lpfc_els_flush_all_cmd(phba); 1261 1262 psli->slistat.link_event++; 1263 lpfc_read_la(phba, pmb, mp); 1264 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 1265 pmb->vport = vport; 1266 /* Block ELS IOCBs until we have processed this mbox command */ 1267 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1268 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1269 if (rc == MBX_NOT_FINISHED) { 1270 rc = 4; 1271 goto lpfc_handle_latt_free_mbuf; 1272 } 1273 1274 /* Clear Link Attention in HA REG */ 1275 spin_lock_irq(&phba->hbalock); 1276 writel(HA_LATT, phba->HAregaddr); 1277 readl(phba->HAregaddr); /* flush */ 1278 spin_unlock_irq(&phba->hbalock); 1279 1280 return; 1281 1282lpfc_handle_latt_free_mbuf: 1283 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1284 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1285lpfc_handle_latt_free_mp: 1286 kfree(mp); 1287lpfc_handle_latt_free_pmb: 1288 mempool_free(pmb, phba->mbox_mem_pool); 1289lpfc_handle_latt_err_exit: 1290 /* Enable Link attention interrupts */ 1291 spin_lock_irq(&phba->hbalock); 1292 psli->sli_flag |= LPFC_PROCESS_LA; 1293 control = readl(phba->HCregaddr); 1294 control |= HC_LAINT_ENA; 1295 writel(control, phba->HCregaddr); 1296 readl(phba->HCregaddr); /* flush */ 1297 1298 /* Clear Link Attention in HA REG */ 1299 writel(HA_LATT, phba->HAregaddr); 1300 readl(phba->HAregaddr); /* flush */ 1301 spin_unlock_irq(&phba->hbalock); 1302 lpfc_linkdown(phba); 1303 phba->link_state = LPFC_HBA_ERROR; 1304 1305 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1306 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1307 1308 return; 1309} 1310 1311/** 1312 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1313 * @phba: pointer to lpfc hba data structure. 1314 * @vpd: pointer to the vital product data. 1315 * @len: length of the vital product data in bytes. 1316 * 1317 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1318 * an array of characters. In this routine, the ModelName, ProgramType, and 1319 * ModelDesc, etc. fields of the phba data structure will be populated. 1320 * 1321 * Return codes 1322 * 0 - pointer to the VPD passed in is NULL 1323 * 1 - success 1324 **/ 1325int 1326lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1327{ 1328 uint8_t lenlo, lenhi; 1329 int Length; 1330 int i, j; 1331 int finished = 0; 1332 int index = 0; 1333 1334 if (!vpd) 1335 return 0; 1336 1337 /* Vital Product */ 1338 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1339 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1340 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1341 (uint32_t) vpd[3]); 1342 while (!finished && (index < (len - 4))) { 1343 switch (vpd[index]) { 1344 case 0x82: 1345 case 0x91: 1346 index += 1; 1347 lenlo = vpd[index]; 1348 index += 1; 1349 lenhi = vpd[index]; 1350 index += 1; 1351 i = ((((unsigned short)lenhi) << 8) + lenlo); 1352 index += i; 1353 break; 1354 case 0x90: 1355 index += 1; 1356 lenlo = vpd[index]; 1357 index += 1; 1358 lenhi = vpd[index]; 1359 index += 1; 1360 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1361 if (Length > len - index) 1362 Length = len - index; 1363 while (Length > 0) { 1364 /* Look for Serial Number */ 1365 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1366 index += 2; 1367 i = vpd[index]; 1368 index += 1; 1369 j = 0; 1370 Length -= (3+i); 1371 while(i--) { 1372 phba->SerialNumber[j++] = vpd[index++]; 1373 if (j == 31) 1374 break; 1375 } 1376 phba->SerialNumber[j] = 0; 1377 continue; 1378 } 1379 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1380 phba->vpd_flag |= VPD_MODEL_DESC; 1381 index += 2; 1382 i = vpd[index]; 1383 index += 1; 1384 j = 0; 1385 Length -= (3+i); 1386 while(i--) { 1387 phba->ModelDesc[j++] = vpd[index++]; 1388 if (j == 255) 1389 break; 1390 } 1391 phba->ModelDesc[j] = 0; 1392 continue; 1393 } 1394 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1395 phba->vpd_flag |= VPD_MODEL_NAME; 1396 index += 2; 1397 i = vpd[index]; 1398 index += 1; 1399 j = 0; 1400 Length -= (3+i); 1401 while(i--) { 1402 phba->ModelName[j++] = vpd[index++]; 1403 if (j == 79) 1404 break; 1405 } 1406 phba->ModelName[j] = 0; 1407 continue; 1408 } 1409 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1410 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1411 index += 2; 1412 i = vpd[index]; 1413 index += 1; 1414 j = 0; 1415 Length -= (3+i); 1416 while(i--) { 1417 phba->ProgramType[j++] = vpd[index++]; 1418 if (j == 255) 1419 break; 1420 } 1421 phba->ProgramType[j] = 0; 1422 continue; 1423 } 1424 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1425 phba->vpd_flag |= VPD_PORT; 1426 index += 2; 1427 i = vpd[index]; 1428 index += 1; 1429 j = 0; 1430 Length -= (3+i); 1431 while(i--) { 1432 phba->Port[j++] = vpd[index++]; 1433 if (j == 19) 1434 break; 1435 } 1436 phba->Port[j] = 0; 1437 continue; 1438 } 1439 else { 1440 index += 2; 1441 i = vpd[index]; 1442 index += 1; 1443 index += i; 1444 Length -= (3 + i); 1445 } 1446 } 1447 finished = 0; 1448 break; 1449 case 0x78: 1450 finished = 1; 1451 break; 1452 default: 1453 index ++; 1454 break; 1455 } 1456 } 1457 1458 return(1); 1459} 1460 1461/** 1462 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1463 * @phba: pointer to lpfc hba data structure. 1464 * @mdp: pointer to the data structure to hold the derived model name. 1465 * @descp: pointer to the data structure to hold the derived description. 1466 * 1467 * This routine retrieves HBA's description based on its registered PCI device 1468 * ID. The @descp passed into this function points to an array of 256 chars. It 1469 * shall be returned with the model name, maximum speed, and the host bus type. 1470 * The @mdp passed into this function points to an array of 80 chars. When the 1471 * function returns, the @mdp will be filled with the model name. 1472 **/ 1473static void 1474lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1475{ 1476 lpfc_vpd_t *vp; 1477 uint16_t dev_id = phba->pcidev->device; 1478 int max_speed; 1479 int GE = 0; 1480 int oneConnect = 0; /* default is not a oneConnect */ 1481 struct { 1482 char * name; 1483 int max_speed; 1484 char * bus; 1485 } m = {"<Unknown>", 0, ""}; 1486 1487 if (mdp && mdp[0] != '\0' 1488 && descp && descp[0] != '\0') 1489 return; 1490 1491 if (phba->lmt & LMT_10Gb) 1492 max_speed = 10; 1493 else if (phba->lmt & LMT_8Gb) 1494 max_speed = 8; 1495 else if (phba->lmt & LMT_4Gb) 1496 max_speed = 4; 1497 else if (phba->lmt & LMT_2Gb) 1498 max_speed = 2; 1499 else 1500 max_speed = 1; 1501 1502 vp = &phba->vpd; 1503 1504 switch (dev_id) { 1505 case PCI_DEVICE_ID_FIREFLY: 1506 m = (typeof(m)){"LP6000", max_speed, "PCI"}; 1507 break; 1508 case PCI_DEVICE_ID_SUPERFLY: 1509 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1510 m = (typeof(m)){"LP7000", max_speed, "PCI"}; 1511 else 1512 m = (typeof(m)){"LP7000E", max_speed, "PCI"}; 1513 break; 1514 case PCI_DEVICE_ID_DRAGONFLY: 1515 m = (typeof(m)){"LP8000", max_speed, "PCI"}; 1516 break; 1517 case PCI_DEVICE_ID_CENTAUR: 1518 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1519 m = (typeof(m)){"LP9002", max_speed, "PCI"}; 1520 else 1521 m = (typeof(m)){"LP9000", max_speed, "PCI"}; 1522 break; 1523 case PCI_DEVICE_ID_RFLY: 1524 m = (typeof(m)){"LP952", max_speed, "PCI"}; 1525 break; 1526 case PCI_DEVICE_ID_PEGASUS: 1527 m = (typeof(m)){"LP9802", max_speed, "PCI-X"}; 1528 break; 1529 case PCI_DEVICE_ID_THOR: 1530 m = (typeof(m)){"LP10000", max_speed, "PCI-X"}; 1531 break; 1532 case PCI_DEVICE_ID_VIPER: 1533 m = (typeof(m)){"LPX1000", max_speed, "PCI-X"}; 1534 break; 1535 case PCI_DEVICE_ID_PFLY: 1536 m = (typeof(m)){"LP982", max_speed, "PCI-X"}; 1537 break; 1538 case PCI_DEVICE_ID_TFLY: 1539 m = (typeof(m)){"LP1050", max_speed, "PCI-X"}; 1540 break; 1541 case PCI_DEVICE_ID_HELIOS: 1542 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"}; 1543 break; 1544 case PCI_DEVICE_ID_HELIOS_SCSP: 1545 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"}; 1546 break; 1547 case PCI_DEVICE_ID_HELIOS_DCSP: 1548 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"}; 1549 break; 1550 case PCI_DEVICE_ID_NEPTUNE: 1551 m = (typeof(m)){"LPe1000", max_speed, "PCIe"}; 1552 break; 1553 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1554 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"}; 1555 break; 1556 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1557 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"}; 1558 break; 1559 case PCI_DEVICE_ID_BMID: 1560 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"}; 1561 break; 1562 case PCI_DEVICE_ID_BSMB: 1563 m = (typeof(m)){"LP111", max_speed, "PCI-X2"}; 1564 break; 1565 case PCI_DEVICE_ID_ZEPHYR: 1566 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1567 break; 1568 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1569 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1570 break; 1571 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1572 m = (typeof(m)){"LP2105", max_speed, "PCIe"}; 1573 GE = 1; 1574 break; 1575 case PCI_DEVICE_ID_ZMID: 1576 m = (typeof(m)){"LPe1150", max_speed, "PCIe"}; 1577 break; 1578 case PCI_DEVICE_ID_ZSMB: 1579 m = (typeof(m)){"LPe111", max_speed, "PCIe"}; 1580 break; 1581 case PCI_DEVICE_ID_LP101: 1582 m = (typeof(m)){"LP101", max_speed, "PCI-X"}; 1583 break; 1584 case PCI_DEVICE_ID_LP10000S: 1585 m = (typeof(m)){"LP10000-S", max_speed, "PCI"}; 1586 break; 1587 case PCI_DEVICE_ID_LP11000S: 1588 m = (typeof(m)){"LP11000-S", max_speed, 1589 "PCI-X2"}; 1590 break; 1591 case PCI_DEVICE_ID_LPE11000S: 1592 m = (typeof(m)){"LPe11000-S", max_speed, 1593 "PCIe"}; 1594 break; 1595 case PCI_DEVICE_ID_SAT: 1596 m = (typeof(m)){"LPe12000", max_speed, "PCIe"}; 1597 break; 1598 case PCI_DEVICE_ID_SAT_MID: 1599 m = (typeof(m)){"LPe1250", max_speed, "PCIe"}; 1600 break; 1601 case PCI_DEVICE_ID_SAT_SMB: 1602 m = (typeof(m)){"LPe121", max_speed, "PCIe"}; 1603 break; 1604 case PCI_DEVICE_ID_SAT_DCSP: 1605 m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"}; 1606 break; 1607 case PCI_DEVICE_ID_SAT_SCSP: 1608 m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"}; 1609 break; 1610 case PCI_DEVICE_ID_SAT_S: 1611 m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"}; 1612 break; 1613 case PCI_DEVICE_ID_HORNET: 1614 m = (typeof(m)){"LP21000", max_speed, "PCIe"}; 1615 GE = 1; 1616 break; 1617 case PCI_DEVICE_ID_PROTEUS_VF: 1618 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"}; 1619 break; 1620 case PCI_DEVICE_ID_PROTEUS_PF: 1621 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"}; 1622 break; 1623 case PCI_DEVICE_ID_PROTEUS_S: 1624 m = (typeof(m)) {"LPemv12002-S", max_speed, "PCIe IOV"}; 1625 break; 1626 case PCI_DEVICE_ID_TIGERSHARK: 1627 oneConnect = 1; 1628 m = (typeof(m)) {"OCe10100-F", max_speed, "PCIe"}; 1629 break; 1630 case PCI_DEVICE_ID_TIGERSHARK_S: 1631 oneConnect = 1; 1632 m = (typeof(m)) {"OCe10100-F-S", max_speed, "PCIe"}; 1633 break; 1634 default: 1635 m = (typeof(m)){ NULL }; 1636 break; 1637 } 1638 1639 if (mdp && mdp[0] == '\0') 1640 snprintf(mdp, 79,"%s", m.name); 1641 /* oneConnect hba requires special processing, they are all initiators 1642 * and we put the port number on the end 1643 */ 1644 if (descp && descp[0] == '\0') { 1645 if (oneConnect) 1646 snprintf(descp, 255, 1647 "Emulex OneConnect %s, FCoE Initiator, Port %s", 1648 m.name, 1649 phba->Port); 1650 else 1651 snprintf(descp, 255, 1652 "Emulex %s %d%s %s %s", 1653 m.name, m.max_speed, 1654 (GE) ? "GE" : "Gb", 1655 m.bus, 1656 (GE) ? "FCoE Adapter" : 1657 "Fibre Channel Adapter"); 1658 } 1659} 1660 1661/** 1662 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 1663 * @phba: pointer to lpfc hba data structure. 1664 * @pring: pointer to a IOCB ring. 1665 * @cnt: the number of IOCBs to be posted to the IOCB ring. 1666 * 1667 * This routine posts a given number of IOCBs with the associated DMA buffer 1668 * descriptors specified by the cnt argument to the given IOCB ring. 1669 * 1670 * Return codes 1671 * The number of IOCBs NOT able to be posted to the IOCB ring. 1672 **/ 1673int 1674lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 1675{ 1676 IOCB_t *icmd; 1677 struct lpfc_iocbq *iocb; 1678 struct lpfc_dmabuf *mp1, *mp2; 1679 1680 cnt += pring->missbufcnt; 1681 1682 /* While there are buffers to post */ 1683 while (cnt > 0) { 1684 /* Allocate buffer for command iocb */ 1685 iocb = lpfc_sli_get_iocbq(phba); 1686 if (iocb == NULL) { 1687 pring->missbufcnt = cnt; 1688 return cnt; 1689 } 1690 icmd = &iocb->iocb; 1691 1692 /* 2 buffers can be posted per command */ 1693 /* Allocate buffer to post */ 1694 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1695 if (mp1) 1696 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 1697 if (!mp1 || !mp1->virt) { 1698 kfree(mp1); 1699 lpfc_sli_release_iocbq(phba, iocb); 1700 pring->missbufcnt = cnt; 1701 return cnt; 1702 } 1703 1704 INIT_LIST_HEAD(&mp1->list); 1705 /* Allocate buffer to post */ 1706 if (cnt > 1) { 1707 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1708 if (mp2) 1709 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1710 &mp2->phys); 1711 if (!mp2 || !mp2->virt) { 1712 kfree(mp2); 1713 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1714 kfree(mp1); 1715 lpfc_sli_release_iocbq(phba, iocb); 1716 pring->missbufcnt = cnt; 1717 return cnt; 1718 } 1719 1720 INIT_LIST_HEAD(&mp2->list); 1721 } else { 1722 mp2 = NULL; 1723 } 1724 1725 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1726 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1727 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1728 icmd->ulpBdeCount = 1; 1729 cnt--; 1730 if (mp2) { 1731 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1732 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1733 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1734 cnt--; 1735 icmd->ulpBdeCount = 2; 1736 } 1737 1738 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1739 icmd->ulpLe = 1; 1740 1741 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 1742 IOCB_ERROR) { 1743 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1744 kfree(mp1); 1745 cnt++; 1746 if (mp2) { 1747 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1748 kfree(mp2); 1749 cnt++; 1750 } 1751 lpfc_sli_release_iocbq(phba, iocb); 1752 pring->missbufcnt = cnt; 1753 return cnt; 1754 } 1755 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1756 if (mp2) 1757 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1758 } 1759 pring->missbufcnt = 0; 1760 return 0; 1761} 1762 1763/** 1764 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 1765 * @phba: pointer to lpfc hba data structure. 1766 * 1767 * This routine posts initial receive IOCB buffers to the ELS ring. The 1768 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 1769 * set to 64 IOCBs. 1770 * 1771 * Return codes 1772 * 0 - success (currently always success) 1773 **/ 1774static int 1775lpfc_post_rcv_buf(struct lpfc_hba *phba) 1776{ 1777 struct lpfc_sli *psli = &phba->sli; 1778 1779 /* Ring 0, ELS / CT buffers */ 1780 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 1781 /* Ring 2 - FCP no buffers needed */ 1782 1783 return 0; 1784} 1785 1786#define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 1787 1788/** 1789 * lpfc_sha_init - Set up initial array of hash table entries 1790 * @HashResultPointer: pointer to an array as hash table. 1791 * 1792 * This routine sets up the initial values to the array of hash table entries 1793 * for the LC HBAs. 1794 **/ 1795static void 1796lpfc_sha_init(uint32_t * HashResultPointer) 1797{ 1798 HashResultPointer[0] = 0x67452301; 1799 HashResultPointer[1] = 0xEFCDAB89; 1800 HashResultPointer[2] = 0x98BADCFE; 1801 HashResultPointer[3] = 0x10325476; 1802 HashResultPointer[4] = 0xC3D2E1F0; 1803} 1804 1805/** 1806 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 1807 * @HashResultPointer: pointer to an initial/result hash table. 1808 * @HashWorkingPointer: pointer to an working hash table. 1809 * 1810 * This routine iterates an initial hash table pointed by @HashResultPointer 1811 * with the values from the working hash table pointeed by @HashWorkingPointer. 1812 * The results are putting back to the initial hash table, returned through 1813 * the @HashResultPointer as the result hash table. 1814 **/ 1815static void 1816lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 1817{ 1818 int t; 1819 uint32_t TEMP; 1820 uint32_t A, B, C, D, E; 1821 t = 16; 1822 do { 1823 HashWorkingPointer[t] = 1824 S(1, 1825 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 1826 8] ^ 1827 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 1828 } while (++t <= 79); 1829 t = 0; 1830 A = HashResultPointer[0]; 1831 B = HashResultPointer[1]; 1832 C = HashResultPointer[2]; 1833 D = HashResultPointer[3]; 1834 E = HashResultPointer[4]; 1835 1836 do { 1837 if (t < 20) { 1838 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 1839 } else if (t < 40) { 1840 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 1841 } else if (t < 60) { 1842 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 1843 } else { 1844 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 1845 } 1846 TEMP += S(5, A) + E + HashWorkingPointer[t]; 1847 E = D; 1848 D = C; 1849 C = S(30, B); 1850 B = A; 1851 A = TEMP; 1852 } while (++t <= 79); 1853 1854 HashResultPointer[0] += A; 1855 HashResultPointer[1] += B; 1856 HashResultPointer[2] += C; 1857 HashResultPointer[3] += D; 1858 HashResultPointer[4] += E; 1859 1860} 1861 1862/** 1863 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 1864 * @RandomChallenge: pointer to the entry of host challenge random number array. 1865 * @HashWorking: pointer to the entry of the working hash array. 1866 * 1867 * This routine calculates the working hash array referred by @HashWorking 1868 * from the challenge random numbers associated with the host, referred by 1869 * @RandomChallenge. The result is put into the entry of the working hash 1870 * array and returned by reference through @HashWorking. 1871 **/ 1872static void 1873lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 1874{ 1875 *HashWorking = (*RandomChallenge ^ *HashWorking); 1876} 1877 1878/** 1879 * lpfc_hba_init - Perform special handling for LC HBA initialization 1880 * @phba: pointer to lpfc hba data structure. 1881 * @hbainit: pointer to an array of unsigned 32-bit integers. 1882 * 1883 * This routine performs the special handling for LC HBA initialization. 1884 **/ 1885void 1886lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 1887{ 1888 int t; 1889 uint32_t *HashWorking; 1890 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 1891 1892 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 1893 if (!HashWorking) 1894 return; 1895 1896 HashWorking[0] = HashWorking[78] = *pwwnn++; 1897 HashWorking[1] = HashWorking[79] = *pwwnn; 1898 1899 for (t = 0; t < 7; t++) 1900 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 1901 1902 lpfc_sha_init(hbainit); 1903 lpfc_sha_iterate(hbainit, HashWorking); 1904 kfree(HashWorking); 1905} 1906 1907/** 1908 * lpfc_cleanup - Performs vport cleanups before deleting a vport 1909 * @vport: pointer to a virtual N_Port data structure. 1910 * 1911 * This routine performs the necessary cleanups before deleting the @vport. 1912 * It invokes the discovery state machine to perform necessary state 1913 * transitions and to release the ndlps associated with the @vport. Note, 1914 * the physical port is treated as @vport 0. 1915 **/ 1916void 1917lpfc_cleanup(struct lpfc_vport *vport) 1918{ 1919 struct lpfc_hba *phba = vport->phba; 1920 struct lpfc_nodelist *ndlp, *next_ndlp; 1921 int i = 0; 1922 1923 if (phba->link_state > LPFC_LINK_DOWN) 1924 lpfc_port_link_failure(vport); 1925 1926 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 1927 if (!NLP_CHK_NODE_ACT(ndlp)) { 1928 ndlp = lpfc_enable_node(vport, ndlp, 1929 NLP_STE_UNUSED_NODE); 1930 if (!ndlp) 1931 continue; 1932 spin_lock_irq(&phba->ndlp_lock); 1933 NLP_SET_FREE_REQ(ndlp); 1934 spin_unlock_irq(&phba->ndlp_lock); 1935 /* Trigger the release of the ndlp memory */ 1936 lpfc_nlp_put(ndlp); 1937 continue; 1938 } 1939 spin_lock_irq(&phba->ndlp_lock); 1940 if (NLP_CHK_FREE_REQ(ndlp)) { 1941 /* The ndlp should not be in memory free mode already */ 1942 spin_unlock_irq(&phba->ndlp_lock); 1943 continue; 1944 } else 1945 /* Indicate request for freeing ndlp memory */ 1946 NLP_SET_FREE_REQ(ndlp); 1947 spin_unlock_irq(&phba->ndlp_lock); 1948 1949 if (vport->port_type != LPFC_PHYSICAL_PORT && 1950 ndlp->nlp_DID == Fabric_DID) { 1951 /* Just free up ndlp with Fabric_DID for vports */ 1952 lpfc_nlp_put(ndlp); 1953 continue; 1954 } 1955 1956 if (ndlp->nlp_type & NLP_FABRIC) 1957 lpfc_disc_state_machine(vport, ndlp, NULL, 1958 NLP_EVT_DEVICE_RECOVERY); 1959 1960 lpfc_disc_state_machine(vport, ndlp, NULL, 1961 NLP_EVT_DEVICE_RM); 1962 1963 } 1964 1965 /* At this point, ALL ndlp's should be gone 1966 * because of the previous NLP_EVT_DEVICE_RM. 1967 * Lets wait for this to happen, if needed. 1968 */ 1969 while (!list_empty(&vport->fc_nodes)) { 1970 if (i++ > 3000) { 1971 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1972 "0233 Nodelist not empty\n"); 1973 list_for_each_entry_safe(ndlp, next_ndlp, 1974 &vport->fc_nodes, nlp_listp) { 1975 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 1976 LOG_NODE, 1977 "0282 did:x%x ndlp:x%p " 1978 "usgmap:x%x refcnt:%d\n", 1979 ndlp->nlp_DID, (void *)ndlp, 1980 ndlp->nlp_usg_map, 1981 atomic_read( 1982 &ndlp->kref.refcount)); 1983 } 1984 break; 1985 } 1986 1987 /* Wait for any activity on ndlps to settle */ 1988 msleep(10); 1989 } 1990} 1991 1992/** 1993 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 1994 * @vport: pointer to a virtual N_Port data structure. 1995 * 1996 * This routine stops all the timers associated with a @vport. This function 1997 * is invoked before disabling or deleting a @vport. Note that the physical 1998 * port is treated as @vport 0. 1999 **/ 2000void 2001lpfc_stop_vport_timers(struct lpfc_vport *vport) 2002{ 2003 del_timer_sync(&vport->els_tmofunc); 2004 del_timer_sync(&vport->fc_fdmitmo); 2005 lpfc_can_disctmo(vport); 2006 return; 2007} 2008 2009/** 2010 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2011 * @phba: pointer to lpfc hba data structure. 2012 * 2013 * This routine stops all the timers associated with a HBA. This function is 2014 * invoked before either putting a HBA offline or unloading the driver. 2015 **/ 2016void 2017lpfc_stop_hba_timers(struct lpfc_hba *phba) 2018{ 2019 lpfc_stop_vport_timers(phba->pport); 2020 del_timer_sync(&phba->sli.mbox_tmo); 2021 del_timer_sync(&phba->fabric_block_timer); 2022 del_timer_sync(&phba->eratt_poll); 2023 del_timer_sync(&phba->hb_tmofunc); 2024 phba->hb_outstanding = 0; 2025 2026 switch (phba->pci_dev_grp) { 2027 case LPFC_PCI_DEV_LP: 2028 /* Stop any LightPulse device specific driver timers */ 2029 del_timer_sync(&phba->fcp_poll_timer); 2030 break; 2031 case LPFC_PCI_DEV_OC: 2032 /* Stop any OneConnect device sepcific driver timers */ 2033 break; 2034 default: 2035 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2036 "0297 Invalid device group (x%x)\n", 2037 phba->pci_dev_grp); 2038 break; 2039 } 2040 return; 2041} 2042 2043/** 2044 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2045 * @phba: pointer to lpfc hba data structure. 2046 * 2047 * This routine marks a HBA's management interface as blocked. Once the HBA's 2048 * management interface is marked as blocked, all the user space access to 2049 * the HBA, whether they are from sysfs interface or libdfc interface will 2050 * all be blocked. The HBA is set to block the management interface when the 2051 * driver prepares the HBA interface for online or offline. 2052 **/ 2053static void 2054lpfc_block_mgmt_io(struct lpfc_hba * phba) 2055{ 2056 unsigned long iflag; 2057 2058 spin_lock_irqsave(&phba->hbalock, iflag); 2059 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2060 spin_unlock_irqrestore(&phba->hbalock, iflag); 2061} 2062 2063/** 2064 * lpfc_online - Initialize and bring a HBA online 2065 * @phba: pointer to lpfc hba data structure. 2066 * 2067 * This routine initializes the HBA and brings a HBA online. During this 2068 * process, the management interface is blocked to prevent user space access 2069 * to the HBA interfering with the driver initialization. 2070 * 2071 * Return codes 2072 * 0 - successful 2073 * 1 - failed 2074 **/ 2075int 2076lpfc_online(struct lpfc_hba *phba) 2077{ 2078 struct lpfc_vport *vport; 2079 struct lpfc_vport **vports; 2080 int i; 2081 2082 if (!phba) 2083 return 0; 2084 vport = phba->pport; 2085 2086 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2087 return 0; 2088 2089 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2090 "0458 Bring Adapter online\n"); 2091 2092 lpfc_block_mgmt_io(phba); 2093 2094 if (!lpfc_sli_queue_setup(phba)) { 2095 lpfc_unblock_mgmt_io(phba); 2096 return 1; 2097 } 2098 2099 if (phba->sli_rev == LPFC_SLI_REV4) { 2100 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2101 lpfc_unblock_mgmt_io(phba); 2102 return 1; 2103 } 2104 } else { 2105 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2106 lpfc_unblock_mgmt_io(phba); 2107 return 1; 2108 } 2109 } 2110 2111 vports = lpfc_create_vport_work_array(phba); 2112 if (vports != NULL) 2113 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2114 struct Scsi_Host *shost; 2115 shost = lpfc_shost_from_vport(vports[i]); 2116 spin_lock_irq(shost->host_lock); 2117 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2118 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2119 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2120 spin_unlock_irq(shost->host_lock); 2121 } 2122 lpfc_destroy_vport_work_array(phba, vports); 2123 2124 lpfc_unblock_mgmt_io(phba); 2125 return 0; 2126} 2127 2128/** 2129 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2130 * @phba: pointer to lpfc hba data structure. 2131 * 2132 * This routine marks a HBA's management interface as not blocked. Once the 2133 * HBA's management interface is marked as not blocked, all the user space 2134 * access to the HBA, whether they are from sysfs interface or libdfc 2135 * interface will be allowed. The HBA is set to block the management interface 2136 * when the driver prepares the HBA interface for online or offline and then 2137 * set to unblock the management interface afterwards. 2138 **/ 2139void 2140lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2141{ 2142 unsigned long iflag; 2143 2144 spin_lock_irqsave(&phba->hbalock, iflag); 2145 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2146 spin_unlock_irqrestore(&phba->hbalock, iflag); 2147} 2148 2149/** 2150 * lpfc_offline_prep - Prepare a HBA to be brought offline 2151 * @phba: pointer to lpfc hba data structure. 2152 * 2153 * This routine is invoked to prepare a HBA to be brought offline. It performs 2154 * unregistration login to all the nodes on all vports and flushes the mailbox 2155 * queue to make it ready to be brought offline. 2156 **/ 2157void 2158lpfc_offline_prep(struct lpfc_hba * phba) 2159{ 2160 struct lpfc_vport *vport = phba->pport; 2161 struct lpfc_nodelist *ndlp, *next_ndlp; 2162 struct lpfc_vport **vports; 2163 int i; 2164 2165 if (vport->fc_flag & FC_OFFLINE_MODE) 2166 return; 2167 2168 lpfc_block_mgmt_io(phba); 2169 2170 lpfc_linkdown(phba); 2171 2172 /* Issue an unreg_login to all nodes on all vports */ 2173 vports = lpfc_create_vport_work_array(phba); 2174 if (vports != NULL) { 2175 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2176 struct Scsi_Host *shost; 2177 2178 if (vports[i]->load_flag & FC_UNLOADING) 2179 continue; 2180 vports[i]->vfi_state &= ~LPFC_VFI_REGISTERED; 2181 shost = lpfc_shost_from_vport(vports[i]); 2182 list_for_each_entry_safe(ndlp, next_ndlp, 2183 &vports[i]->fc_nodes, 2184 nlp_listp) { 2185 if (!NLP_CHK_NODE_ACT(ndlp)) 2186 continue; 2187 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2188 continue; 2189 if (ndlp->nlp_type & NLP_FABRIC) { 2190 lpfc_disc_state_machine(vports[i], ndlp, 2191 NULL, NLP_EVT_DEVICE_RECOVERY); 2192 lpfc_disc_state_machine(vports[i], ndlp, 2193 NULL, NLP_EVT_DEVICE_RM); 2194 } 2195 spin_lock_irq(shost->host_lock); 2196 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2197 spin_unlock_irq(shost->host_lock); 2198 lpfc_unreg_rpi(vports[i], ndlp); 2199 } 2200 } 2201 } 2202 lpfc_destroy_vport_work_array(phba, vports); 2203 2204 lpfc_sli_flush_mbox_queue(phba); 2205} 2206 2207/** 2208 * lpfc_offline - Bring a HBA offline 2209 * @phba: pointer to lpfc hba data structure. 2210 * 2211 * This routine actually brings a HBA offline. It stops all the timers 2212 * associated with the HBA, brings down the SLI layer, and eventually 2213 * marks the HBA as in offline state for the upper layer protocol. 2214 **/ 2215void 2216lpfc_offline(struct lpfc_hba *phba) 2217{ 2218 struct Scsi_Host *shost; 2219 struct lpfc_vport **vports; 2220 int i; 2221 2222 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2223 return; 2224 2225 /* stop port and all timers associated with this hba */ 2226 lpfc_stop_port(phba); 2227 vports = lpfc_create_vport_work_array(phba); 2228 if (vports != NULL) 2229 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2230 lpfc_stop_vport_timers(vports[i]); 2231 lpfc_destroy_vport_work_array(phba, vports); 2232 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2233 "0460 Bring Adapter offline\n"); 2234 /* Bring down the SLI Layer and cleanup. The HBA is offline 2235 now. */ 2236 lpfc_sli_hba_down(phba); 2237 spin_lock_irq(&phba->hbalock); 2238 phba->work_ha = 0; 2239 spin_unlock_irq(&phba->hbalock); 2240 vports = lpfc_create_vport_work_array(phba); 2241 if (vports != NULL) 2242 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2243 shost = lpfc_shost_from_vport(vports[i]); 2244 spin_lock_irq(shost->host_lock); 2245 vports[i]->work_port_events = 0; 2246 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2247 spin_unlock_irq(shost->host_lock); 2248 } 2249 lpfc_destroy_vport_work_array(phba, vports); 2250} 2251 2252/** 2253 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2254 * @phba: pointer to lpfc hba data structure. 2255 * 2256 * This routine is to free all the SCSI buffers and IOCBs from the driver 2257 * list back to kernel. It is called from lpfc_pci_remove_one to free 2258 * the internal resources before the device is removed from the system. 2259 * 2260 * Return codes 2261 * 0 - successful (for now, it always returns 0) 2262 **/ 2263static int 2264lpfc_scsi_free(struct lpfc_hba *phba) 2265{ 2266 struct lpfc_scsi_buf *sb, *sb_next; 2267 struct lpfc_iocbq *io, *io_next; 2268 2269 spin_lock_irq(&phba->hbalock); 2270 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2271 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2272 list_del(&sb->list); 2273 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2274 sb->dma_handle); 2275 kfree(sb); 2276 phba->total_scsi_bufs--; 2277 } 2278 2279 /* Release all the lpfc_iocbq entries maintained by this host. */ 2280 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2281 list_del(&io->list); 2282 kfree(io); 2283 phba->total_iocbq_bufs--; 2284 } 2285 2286 spin_unlock_irq(&phba->hbalock); 2287 2288 return 0; 2289} 2290 2291/** 2292 * lpfc_create_port - Create an FC port 2293 * @phba: pointer to lpfc hba data structure. 2294 * @instance: a unique integer ID to this FC port. 2295 * @dev: pointer to the device data structure. 2296 * 2297 * This routine creates a FC port for the upper layer protocol. The FC port 2298 * can be created on top of either a physical port or a virtual port provided 2299 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2300 * and associates the FC port created before adding the shost into the SCSI 2301 * layer. 2302 * 2303 * Return codes 2304 * @vport - pointer to the virtual N_Port data structure. 2305 * NULL - port create failed. 2306 **/ 2307struct lpfc_vport * 2308lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2309{ 2310 struct lpfc_vport *vport; 2311 struct Scsi_Host *shost; 2312 int error = 0; 2313 2314 if (dev != &phba->pcidev->dev) 2315 shost = scsi_host_alloc(&lpfc_vport_template, 2316 sizeof(struct lpfc_vport)); 2317 else 2318 shost = scsi_host_alloc(&lpfc_template, 2319 sizeof(struct lpfc_vport)); 2320 if (!shost) 2321 goto out; 2322 2323 vport = (struct lpfc_vport *) shost->hostdata; 2324 vport->phba = phba; 2325 vport->load_flag |= FC_LOADING; 2326 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2327 vport->fc_rscn_flush = 0; 2328 2329 lpfc_get_vport_cfgparam(vport); 2330 shost->unique_id = instance; 2331 shost->max_id = LPFC_MAX_TARGET; 2332 shost->max_lun = vport->cfg_max_luns; 2333 shost->this_id = -1; 2334 shost->max_cmd_len = 16; 2335 if (phba->sli_rev == LPFC_SLI_REV4) { 2336 shost->dma_boundary = LPFC_SLI4_MAX_SEGMENT_SIZE; 2337 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2338 } 2339 2340 /* 2341 * Set initial can_queue value since 0 is no longer supported and 2342 * scsi_add_host will fail. This will be adjusted later based on the 2343 * max xri value determined in hba setup. 2344 */ 2345 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2346 if (dev != &phba->pcidev->dev) { 2347 shost->transportt = lpfc_vport_transport_template; 2348 vport->port_type = LPFC_NPIV_PORT; 2349 } else { 2350 shost->transportt = lpfc_transport_template; 2351 vport->port_type = LPFC_PHYSICAL_PORT; 2352 } 2353 2354 /* Initialize all internally managed lists. */ 2355 INIT_LIST_HEAD(&vport->fc_nodes); 2356 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2357 spin_lock_init(&vport->work_port_lock); 2358 2359 init_timer(&vport->fc_disctmo); 2360 vport->fc_disctmo.function = lpfc_disc_timeout; 2361 vport->fc_disctmo.data = (unsigned long)vport; 2362 2363 init_timer(&vport->fc_fdmitmo); 2364 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2365 vport->fc_fdmitmo.data = (unsigned long)vport; 2366 2367 init_timer(&vport->els_tmofunc); 2368 vport->els_tmofunc.function = lpfc_els_timeout; 2369 vport->els_tmofunc.data = (unsigned long)vport; 2370 2371 error = scsi_add_host(shost, dev); 2372 if (error) 2373 goto out_put_shost; 2374 2375 spin_lock_irq(&phba->hbalock); 2376 list_add_tail(&vport->listentry, &phba->port_list); 2377 spin_unlock_irq(&phba->hbalock); 2378 return vport; 2379 2380out_put_shost: 2381 scsi_host_put(shost); 2382out: 2383 return NULL; 2384} 2385 2386/** 2387 * destroy_port - destroy an FC port 2388 * @vport: pointer to an lpfc virtual N_Port data structure. 2389 * 2390 * This routine destroys a FC port from the upper layer protocol. All the 2391 * resources associated with the port are released. 2392 **/ 2393void 2394destroy_port(struct lpfc_vport *vport) 2395{ 2396 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2397 struct lpfc_hba *phba = vport->phba; 2398 2399 lpfc_debugfs_terminate(vport); 2400 fc_remove_host(shost); 2401 scsi_remove_host(shost); 2402 2403 spin_lock_irq(&phba->hbalock); 2404 list_del_init(&vport->listentry); 2405 spin_unlock_irq(&phba->hbalock); 2406 2407 lpfc_cleanup(vport); 2408 return; 2409} 2410 2411/** 2412 * lpfc_get_instance - Get a unique integer ID 2413 * 2414 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2415 * uses the kernel idr facility to perform the task. 2416 * 2417 * Return codes: 2418 * instance - a unique integer ID allocated as the new instance. 2419 * -1 - lpfc get instance failed. 2420 **/ 2421int 2422lpfc_get_instance(void) 2423{ 2424 int instance = 0; 2425 2426 /* Assign an unused number */ 2427 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2428 return -1; 2429 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2430 return -1; 2431 return instance; 2432} 2433 2434/** 2435 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2436 * @shost: pointer to SCSI host data structure. 2437 * @time: elapsed time of the scan in jiffies. 2438 * 2439 * This routine is called by the SCSI layer with a SCSI host to determine 2440 * whether the scan host is finished. 2441 * 2442 * Note: there is no scan_start function as adapter initialization will have 2443 * asynchronously kicked off the link initialization. 2444 * 2445 * Return codes 2446 * 0 - SCSI host scan is not over yet. 2447 * 1 - SCSI host scan is over. 2448 **/ 2449int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2450{ 2451 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2452 struct lpfc_hba *phba = vport->phba; 2453 int stat = 0; 2454 2455 spin_lock_irq(shost->host_lock); 2456 2457 if (vport->load_flag & FC_UNLOADING) { 2458 stat = 1; 2459 goto finished; 2460 } 2461 if (time >= 30 * HZ) { 2462 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2463 "0461 Scanning longer than 30 " 2464 "seconds. Continuing initialization\n"); 2465 stat = 1; 2466 goto finished; 2467 } 2468 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2469 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2470 "0465 Link down longer than 15 " 2471 "seconds. Continuing initialization\n"); 2472 stat = 1; 2473 goto finished; 2474 } 2475 2476 if (vport->port_state != LPFC_VPORT_READY) 2477 goto finished; 2478 if (vport->num_disc_nodes || vport->fc_prli_sent) 2479 goto finished; 2480 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2481 goto finished; 2482 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2483 goto finished; 2484 2485 stat = 1; 2486 2487finished: 2488 spin_unlock_irq(shost->host_lock); 2489 return stat; 2490} 2491 2492/** 2493 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 2494 * @shost: pointer to SCSI host data structure. 2495 * 2496 * This routine initializes a given SCSI host attributes on a FC port. The 2497 * SCSI host can be either on top of a physical port or a virtual port. 2498 **/ 2499void lpfc_host_attrib_init(struct Scsi_Host *shost) 2500{ 2501 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2502 struct lpfc_hba *phba = vport->phba; 2503 /* 2504 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2505 */ 2506 2507 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2508 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2509 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2510 2511 memset(fc_host_supported_fc4s(shost), 0, 2512 sizeof(fc_host_supported_fc4s(shost))); 2513 fc_host_supported_fc4s(shost)[2] = 1; 2514 fc_host_supported_fc4s(shost)[7] = 1; 2515 2516 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2517 sizeof fc_host_symbolic_name(shost)); 2518 2519 fc_host_supported_speeds(shost) = 0; 2520 if (phba->lmt & LMT_10Gb) 2521 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2522 if (phba->lmt & LMT_8Gb) 2523 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2524 if (phba->lmt & LMT_4Gb) 2525 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2526 if (phba->lmt & LMT_2Gb) 2527 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2528 if (phba->lmt & LMT_1Gb) 2529 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2530 2531 fc_host_maxframe_size(shost) = 2532 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2533 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2534 2535 /* This value is also unchanging */ 2536 memset(fc_host_active_fc4s(shost), 0, 2537 sizeof(fc_host_active_fc4s(shost))); 2538 fc_host_active_fc4s(shost)[2] = 1; 2539 fc_host_active_fc4s(shost)[7] = 1; 2540 2541 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2542 spin_lock_irq(shost->host_lock); 2543 vport->load_flag &= ~FC_LOADING; 2544 spin_unlock_irq(shost->host_lock); 2545} 2546 2547/** 2548 * lpfc_stop_port_s3 - Stop SLI3 device port 2549 * @phba: pointer to lpfc hba data structure. 2550 * 2551 * This routine is invoked to stop an SLI3 device port, it stops the device 2552 * from generating interrupts and stops the device driver's timers for the 2553 * device. 2554 **/ 2555static void 2556lpfc_stop_port_s3(struct lpfc_hba *phba) 2557{ 2558 /* Clear all interrupt enable conditions */ 2559 writel(0, phba->HCregaddr); 2560 readl(phba->HCregaddr); /* flush */ 2561 /* Clear all pending interrupts */ 2562 writel(0xffffffff, phba->HAregaddr); 2563 readl(phba->HAregaddr); /* flush */ 2564 2565 /* Reset some HBA SLI setup states */ 2566 lpfc_stop_hba_timers(phba); 2567 phba->pport->work_port_events = 0; 2568} 2569 2570/** 2571 * lpfc_stop_port_s4 - Stop SLI4 device port 2572 * @phba: pointer to lpfc hba data structure. 2573 * 2574 * This routine is invoked to stop an SLI4 device port, it stops the device 2575 * from generating interrupts and stops the device driver's timers for the 2576 * device. 2577 **/ 2578static void 2579lpfc_stop_port_s4(struct lpfc_hba *phba) 2580{ 2581 /* Reset some HBA SLI4 setup states */ 2582 lpfc_stop_hba_timers(phba); 2583 phba->pport->work_port_events = 0; 2584 phba->sli4_hba.intr_enable = 0; 2585 /* Hard clear it for now, shall have more graceful way to wait later */ 2586 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 2587} 2588 2589/** 2590 * lpfc_stop_port - Wrapper function for stopping hba port 2591 * @phba: Pointer to HBA context object. 2592 * 2593 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 2594 * the API jump table function pointer from the lpfc_hba struct. 2595 **/ 2596void 2597lpfc_stop_port(struct lpfc_hba *phba) 2598{ 2599 phba->lpfc_stop_port(phba); 2600} 2601 2602/** 2603 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port. 2604 * @phba: pointer to lpfc hba data structure. 2605 * 2606 * This routine is invoked to remove the driver default fcf record from 2607 * the port. This routine currently acts on FCF Index 0. 2608 * 2609 **/ 2610void 2611lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba) 2612{ 2613 int rc = 0; 2614 LPFC_MBOXQ_t *mboxq; 2615 struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record; 2616 uint32_t mbox_tmo, req_len; 2617 uint32_t shdr_status, shdr_add_status; 2618 2619 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2620 if (!mboxq) { 2621 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2622 "2020 Failed to allocate mbox for ADD_FCF cmd\n"); 2623 return; 2624 } 2625 2626 req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) - 2627 sizeof(struct lpfc_sli4_cfg_mhdr); 2628 rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, 2629 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF, 2630 req_len, LPFC_SLI4_MBX_EMBED); 2631 /* 2632 * In phase 1, there is a single FCF index, 0. In phase2, the driver 2633 * supports multiple FCF indices. 2634 */ 2635 del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry; 2636 bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1); 2637 bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record, 2638 phba->fcf.fcf_indx); 2639 2640 if (!phba->sli4_hba.intr_enable) 2641 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 2642 else { 2643 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 2644 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 2645 } 2646 /* The IOCTL status is embedded in the mailbox subheader. */ 2647 shdr_status = bf_get(lpfc_mbox_hdr_status, 2648 &del_fcf_record->header.cfg_shdr.response); 2649 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 2650 &del_fcf_record->header.cfg_shdr.response); 2651 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 2652 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2653 "2516 DEL FCF of default FCF Index failed " 2654 "mbx status x%x, status x%x add_status x%x\n", 2655 rc, shdr_status, shdr_add_status); 2656 } 2657 if (rc != MBX_TIMEOUT) 2658 mempool_free(mboxq, phba->mbox_mem_pool); 2659} 2660 2661/** 2662 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 2663 * @phba: pointer to lpfc hba data structure. 2664 * @acqe_link: pointer to the async link completion queue entry. 2665 * 2666 * This routine is to parse the SLI4 link-attention link fault code and 2667 * translate it into the base driver's read link attention mailbox command 2668 * status. 2669 * 2670 * Return: Link-attention status in terms of base driver's coding. 2671 **/ 2672static uint16_t 2673lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 2674 struct lpfc_acqe_link *acqe_link) 2675{ 2676 uint16_t latt_fault; 2677 2678 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 2679 case LPFC_ASYNC_LINK_FAULT_NONE: 2680 case LPFC_ASYNC_LINK_FAULT_LOCAL: 2681 case LPFC_ASYNC_LINK_FAULT_REMOTE: 2682 latt_fault = 0; 2683 break; 2684 default: 2685 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2686 "0398 Invalid link fault code: x%x\n", 2687 bf_get(lpfc_acqe_link_fault, acqe_link)); 2688 latt_fault = MBXERR_ERROR; 2689 break; 2690 } 2691 return latt_fault; 2692} 2693 2694/** 2695 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 2696 * @phba: pointer to lpfc hba data structure. 2697 * @acqe_link: pointer to the async link completion queue entry. 2698 * 2699 * This routine is to parse the SLI4 link attention type and translate it 2700 * into the base driver's link attention type coding. 2701 * 2702 * Return: Link attention type in terms of base driver's coding. 2703 **/ 2704static uint8_t 2705lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 2706 struct lpfc_acqe_link *acqe_link) 2707{ 2708 uint8_t att_type; 2709 2710 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 2711 case LPFC_ASYNC_LINK_STATUS_DOWN: 2712 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 2713 att_type = AT_LINK_DOWN; 2714 break; 2715 case LPFC_ASYNC_LINK_STATUS_UP: 2716 /* Ignore physical link up events - wait for logical link up */ 2717 att_type = AT_RESERVED; 2718 break; 2719 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 2720 att_type = AT_LINK_UP; 2721 break; 2722 default: 2723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2724 "0399 Invalid link attention type: x%x\n", 2725 bf_get(lpfc_acqe_link_status, acqe_link)); 2726 att_type = AT_RESERVED; 2727 break; 2728 } 2729 return att_type; 2730} 2731 2732/** 2733 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 2734 * @phba: pointer to lpfc hba data structure. 2735 * @acqe_link: pointer to the async link completion queue entry. 2736 * 2737 * This routine is to parse the SLI4 link-attention link speed and translate 2738 * it into the base driver's link-attention link speed coding. 2739 * 2740 * Return: Link-attention link speed in terms of base driver's coding. 2741 **/ 2742static uint8_t 2743lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 2744 struct lpfc_acqe_link *acqe_link) 2745{ 2746 uint8_t link_speed; 2747 2748 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 2749 case LPFC_ASYNC_LINK_SPEED_ZERO: 2750 link_speed = LA_UNKNW_LINK; 2751 break; 2752 case LPFC_ASYNC_LINK_SPEED_10MBPS: 2753 link_speed = LA_UNKNW_LINK; 2754 break; 2755 case LPFC_ASYNC_LINK_SPEED_100MBPS: 2756 link_speed = LA_UNKNW_LINK; 2757 break; 2758 case LPFC_ASYNC_LINK_SPEED_1GBPS: 2759 link_speed = LA_1GHZ_LINK; 2760 break; 2761 case LPFC_ASYNC_LINK_SPEED_10GBPS: 2762 link_speed = LA_10GHZ_LINK; 2763 break; 2764 default: 2765 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2766 "0483 Invalid link-attention link speed: x%x\n", 2767 bf_get(lpfc_acqe_link_speed, acqe_link)); 2768 link_speed = LA_UNKNW_LINK; 2769 break; 2770 } 2771 return link_speed; 2772} 2773 2774/** 2775 * lpfc_sli4_async_link_evt - Process the asynchronous link event 2776 * @phba: pointer to lpfc hba data structure. 2777 * @acqe_link: pointer to the async link completion queue entry. 2778 * 2779 * This routine is to handle the SLI4 asynchronous link event. 2780 **/ 2781static void 2782lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 2783 struct lpfc_acqe_link *acqe_link) 2784{ 2785 struct lpfc_dmabuf *mp; 2786 LPFC_MBOXQ_t *pmb; 2787 MAILBOX_t *mb; 2788 READ_LA_VAR *la; 2789 uint8_t att_type; 2790 2791 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 2792 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP) 2793 return; 2794 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2795 if (!pmb) { 2796 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2797 "0395 The mboxq allocation failed\n"); 2798 return; 2799 } 2800 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 2801 if (!mp) { 2802 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2803 "0396 The lpfc_dmabuf allocation failed\n"); 2804 goto out_free_pmb; 2805 } 2806 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 2807 if (!mp->virt) { 2808 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2809 "0397 The mbuf allocation failed\n"); 2810 goto out_free_dmabuf; 2811 } 2812 2813 /* Cleanup any outstanding ELS commands */ 2814 lpfc_els_flush_all_cmd(phba); 2815 2816 /* Block ELS IOCBs until we have done process link event */ 2817 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 2818 2819 /* Update link event statistics */ 2820 phba->sli.slistat.link_event++; 2821 2822 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */ 2823 lpfc_read_la(phba, pmb, mp); 2824 pmb->vport = phba->pport; 2825 2826 /* Parse and translate status field */ 2827 mb = &pmb->u.mb; 2828 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 2829 2830 /* Parse and translate link attention fields */ 2831 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA; 2832 la->eventTag = acqe_link->event_tag; 2833 la->attType = att_type; 2834 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link); 2835 2836 /* Fake the the following irrelvant fields */ 2837 la->topology = TOPOLOGY_PT_PT; 2838 la->granted_AL_PA = 0; 2839 la->il = 0; 2840 la->pb = 0; 2841 la->fa = 0; 2842 la->mm = 0; 2843 2844 /* Keep the link status for extra SLI4 state machine reference */ 2845 phba->sli4_hba.link_state.speed = 2846 bf_get(lpfc_acqe_link_speed, acqe_link); 2847 phba->sli4_hba.link_state.duplex = 2848 bf_get(lpfc_acqe_link_duplex, acqe_link); 2849 phba->sli4_hba.link_state.status = 2850 bf_get(lpfc_acqe_link_status, acqe_link); 2851 phba->sli4_hba.link_state.physical = 2852 bf_get(lpfc_acqe_link_physical, acqe_link); 2853 phba->sli4_hba.link_state.fault = 2854 bf_get(lpfc_acqe_link_fault, acqe_link); 2855 2856 /* Invoke the lpfc_handle_latt mailbox command callback function */ 2857 lpfc_mbx_cmpl_read_la(phba, pmb); 2858 2859 return; 2860 2861out_free_dmabuf: 2862 kfree(mp); 2863out_free_pmb: 2864 mempool_free(pmb, phba->mbox_mem_pool); 2865} 2866 2867/** 2868 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event 2869 * @phba: pointer to lpfc hba data structure. 2870 * @acqe_link: pointer to the async fcoe completion queue entry. 2871 * 2872 * This routine is to handle the SLI4 asynchronous fcoe event. 2873 **/ 2874static void 2875lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, 2876 struct lpfc_acqe_fcoe *acqe_fcoe) 2877{ 2878 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe); 2879 int rc; 2880 2881 switch (event_type) { 2882 case LPFC_FCOE_EVENT_TYPE_NEW_FCF: 2883 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 2884 "2546 New FCF found index 0x%x tag 0x%x \n", 2885 acqe_fcoe->fcf_index, 2886 acqe_fcoe->event_tag); 2887 /* 2888 * If the current FCF is in discovered state, 2889 * do nothing. 2890 */ 2891 spin_lock_irq(&phba->hbalock); 2892 if (phba->fcf.fcf_flag & FCF_DISCOVERED) { 2893 spin_unlock_irq(&phba->hbalock); 2894 break; 2895 } 2896 spin_unlock_irq(&phba->hbalock); 2897 2898 /* Read the FCF table and re-discover SAN. */ 2899 rc = lpfc_sli4_read_fcf_record(phba, 2900 LPFC_FCOE_FCF_GET_FIRST); 2901 if (rc) 2902 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 2903 "2547 Read FCF record failed 0x%x\n", 2904 rc); 2905 break; 2906 2907 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL: 2908 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2909 "2548 FCF Table full count 0x%x tag 0x%x \n", 2910 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe), 2911 acqe_fcoe->event_tag); 2912 break; 2913 2914 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD: 2915 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 2916 "2549 FCF disconnected fron network index 0x%x" 2917 " tag 0x%x \n", acqe_fcoe->fcf_index, 2918 acqe_fcoe->event_tag); 2919 /* If the event is not for currently used fcf do nothing */ 2920 if (phba->fcf.fcf_indx != acqe_fcoe->fcf_index) 2921 break; 2922 /* 2923 * Currently, driver support only one FCF - so treat this as 2924 * a link down. 2925 */ 2926 lpfc_linkdown(phba); 2927 /* Unregister FCF if no devices connected to it */ 2928 lpfc_unregister_unused_fcf(phba); 2929 break; 2930 2931 default: 2932 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2933 "0288 Unknown FCoE event type 0x%x event tag " 2934 "0x%x\n", event_type, acqe_fcoe->event_tag); 2935 break; 2936 } 2937} 2938 2939/** 2940 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 2941 * @phba: pointer to lpfc hba data structure. 2942 * @acqe_link: pointer to the async dcbx completion queue entry. 2943 * 2944 * This routine is to handle the SLI4 asynchronous dcbx event. 2945 **/ 2946static void 2947lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 2948 struct lpfc_acqe_dcbx *acqe_dcbx) 2949{ 2950 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2951 "0290 The SLI4 DCBX asynchronous event is not " 2952 "handled yet\n"); 2953} 2954 2955/** 2956 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 2957 * @phba: pointer to lpfc hba data structure. 2958 * 2959 * This routine is invoked by the worker thread to process all the pending 2960 * SLI4 asynchronous events. 2961 **/ 2962void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 2963{ 2964 struct lpfc_cq_event *cq_event; 2965 2966 /* First, declare the async event has been handled */ 2967 spin_lock_irq(&phba->hbalock); 2968 phba->hba_flag &= ~ASYNC_EVENT; 2969 spin_unlock_irq(&phba->hbalock); 2970 /* Now, handle all the async events */ 2971 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 2972 /* Get the first event from the head of the event queue */ 2973 spin_lock_irq(&phba->hbalock); 2974 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 2975 cq_event, struct lpfc_cq_event, list); 2976 spin_unlock_irq(&phba->hbalock); 2977 /* Process the asynchronous event */ 2978 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 2979 case LPFC_TRAILER_CODE_LINK: 2980 lpfc_sli4_async_link_evt(phba, 2981 &cq_event->cqe.acqe_link); 2982 break; 2983 case LPFC_TRAILER_CODE_FCOE: 2984 lpfc_sli4_async_fcoe_evt(phba, 2985 &cq_event->cqe.acqe_fcoe); 2986 break; 2987 case LPFC_TRAILER_CODE_DCBX: 2988 lpfc_sli4_async_dcbx_evt(phba, 2989 &cq_event->cqe.acqe_dcbx); 2990 break; 2991 default: 2992 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2993 "1804 Invalid asynchrous event code: " 2994 "x%x\n", bf_get(lpfc_trailer_code, 2995 &cq_event->cqe.mcqe_cmpl)); 2996 break; 2997 } 2998 /* Free the completion event processed to the free pool */ 2999 lpfc_sli4_cq_event_release(phba, cq_event); 3000 } 3001} 3002 3003/** 3004 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3005 * @phba: pointer to lpfc hba data structure. 3006 * @dev_grp: The HBA PCI-Device group number. 3007 * 3008 * This routine is invoked to set up the per HBA PCI-Device group function 3009 * API jump table entries. 3010 * 3011 * Return: 0 if success, otherwise -ENODEV 3012 **/ 3013int 3014lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3015{ 3016 int rc; 3017 3018 /* Set up lpfc PCI-device group */ 3019 phba->pci_dev_grp = dev_grp; 3020 3021 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3022 if (dev_grp == LPFC_PCI_DEV_OC) 3023 phba->sli_rev = LPFC_SLI_REV4; 3024 3025 /* Set up device INIT API function jump table */ 3026 rc = lpfc_init_api_table_setup(phba, dev_grp); 3027 if (rc) 3028 return -ENODEV; 3029 /* Set up SCSI API function jump table */ 3030 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3031 if (rc) 3032 return -ENODEV; 3033 /* Set up SLI API function jump table */ 3034 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3035 if (rc) 3036 return -ENODEV; 3037 /* Set up MBOX API function jump table */ 3038 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3039 if (rc) 3040 return -ENODEV; 3041 3042 return 0; 3043} 3044 3045/** 3046 * lpfc_log_intr_mode - Log the active interrupt mode 3047 * @phba: pointer to lpfc hba data structure. 3048 * @intr_mode: active interrupt mode adopted. 3049 * 3050 * This routine it invoked to log the currently used active interrupt mode 3051 * to the device. 3052 **/ 3053static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3054{ 3055 switch (intr_mode) { 3056 case 0: 3057 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3058 "0470 Enable INTx interrupt mode.\n"); 3059 break; 3060 case 1: 3061 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3062 "0481 Enabled MSI interrupt mode.\n"); 3063 break; 3064 case 2: 3065 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3066 "0480 Enabled MSI-X interrupt mode.\n"); 3067 break; 3068 default: 3069 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3070 "0482 Illegal interrupt mode.\n"); 3071 break; 3072 } 3073 return; 3074} 3075 3076/** 3077 * lpfc_enable_pci_dev - Enable a generic PCI device. 3078 * @phba: pointer to lpfc hba data structure. 3079 * 3080 * This routine is invoked to enable the PCI device that is common to all 3081 * PCI devices. 3082 * 3083 * Return codes 3084 * 0 - sucessful 3085 * other values - error 3086 **/ 3087static int 3088lpfc_enable_pci_dev(struct lpfc_hba *phba) 3089{ 3090 struct pci_dev *pdev; 3091 int bars; 3092 3093 /* Obtain PCI device reference */ 3094 if (!phba->pcidev) 3095 goto out_error; 3096 else 3097 pdev = phba->pcidev; 3098 /* Select PCI BARs */ 3099 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3100 /* Enable PCI device */ 3101 if (pci_enable_device_mem(pdev)) 3102 goto out_error; 3103 /* Request PCI resource for the device */ 3104 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3105 goto out_disable_device; 3106 /* Set up device as PCI master and save state for EEH */ 3107 pci_set_master(pdev); 3108 pci_try_set_mwi(pdev); 3109 pci_save_state(pdev); 3110 3111 return 0; 3112 3113out_disable_device: 3114 pci_disable_device(pdev); 3115out_error: 3116 return -ENODEV; 3117} 3118 3119/** 3120 * lpfc_disable_pci_dev - Disable a generic PCI device. 3121 * @phba: pointer to lpfc hba data structure. 3122 * 3123 * This routine is invoked to disable the PCI device that is common to all 3124 * PCI devices. 3125 **/ 3126static void 3127lpfc_disable_pci_dev(struct lpfc_hba *phba) 3128{ 3129 struct pci_dev *pdev; 3130 int bars; 3131 3132 /* Obtain PCI device reference */ 3133 if (!phba->pcidev) 3134 return; 3135 else 3136 pdev = phba->pcidev; 3137 /* Select PCI BARs */ 3138 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3139 /* Release PCI resource and disable PCI device */ 3140 pci_release_selected_regions(pdev, bars); 3141 pci_disable_device(pdev); 3142 /* Null out PCI private reference to driver */ 3143 pci_set_drvdata(pdev, NULL); 3144 3145 return; 3146} 3147 3148/** 3149 * lpfc_reset_hba - Reset a hba 3150 * @phba: pointer to lpfc hba data structure. 3151 * 3152 * This routine is invoked to reset a hba device. It brings the HBA 3153 * offline, performs a board restart, and then brings the board back 3154 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 3155 * on outstanding mailbox commands. 3156 **/ 3157void 3158lpfc_reset_hba(struct lpfc_hba *phba) 3159{ 3160 /* If resets are disabled then set error state and return. */ 3161 if (!phba->cfg_enable_hba_reset) { 3162 phba->link_state = LPFC_HBA_ERROR; 3163 return; 3164 } 3165 lpfc_offline_prep(phba); 3166 lpfc_offline(phba); 3167 lpfc_sli_brdrestart(phba); 3168 lpfc_online(phba); 3169 lpfc_unblock_mgmt_io(phba); 3170} 3171 3172/** 3173 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 3174 * @phba: pointer to lpfc hba data structure. 3175 * 3176 * This routine is invoked to set up the driver internal resources specific to 3177 * support the SLI-3 HBA device it attached to. 3178 * 3179 * Return codes 3180 * 0 - sucessful 3181 * other values - error 3182 **/ 3183static int 3184lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 3185{ 3186 struct lpfc_sli *psli; 3187 3188 /* 3189 * Initialize timers used by driver 3190 */ 3191 3192 /* Heartbeat timer */ 3193 init_timer(&phba->hb_tmofunc); 3194 phba->hb_tmofunc.function = lpfc_hb_timeout; 3195 phba->hb_tmofunc.data = (unsigned long)phba; 3196 3197 psli = &phba->sli; 3198 /* MBOX heartbeat timer */ 3199 init_timer(&psli->mbox_tmo); 3200 psli->mbox_tmo.function = lpfc_mbox_timeout; 3201 psli->mbox_tmo.data = (unsigned long) phba; 3202 /* FCP polling mode timer */ 3203 init_timer(&phba->fcp_poll_timer); 3204 phba->fcp_poll_timer.function = lpfc_poll_timeout; 3205 phba->fcp_poll_timer.data = (unsigned long) phba; 3206 /* Fabric block timer */ 3207 init_timer(&phba->fabric_block_timer); 3208 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3209 phba->fabric_block_timer.data = (unsigned long) phba; 3210 /* EA polling mode timer */ 3211 init_timer(&phba->eratt_poll); 3212 phba->eratt_poll.function = lpfc_poll_eratt; 3213 phba->eratt_poll.data = (unsigned long) phba; 3214 3215 /* Host attention work mask setup */ 3216 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 3217 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 3218 3219 /* Get all the module params for configuring this host */ 3220 lpfc_get_cfgparam(phba); 3221 /* 3222 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3223 * used to create the sg_dma_buf_pool must be dynamically calculated. 3224 * 2 segments are added since the IOCB needs a command and response bde. 3225 */ 3226 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 3227 sizeof(struct fcp_rsp) + 3228 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 3229 3230 if (phba->cfg_enable_bg) { 3231 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 3232 phba->cfg_sg_dma_buf_size += 3233 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 3234 } 3235 3236 /* Also reinitialize the host templates with new values. */ 3237 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3238 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3239 3240 phba->max_vpi = LPFC_MAX_VPI; 3241 /* This will be set to correct value after config_port mbox */ 3242 phba->max_vports = 0; 3243 3244 /* 3245 * Initialize the SLI Layer to run with lpfc HBAs. 3246 */ 3247 lpfc_sli_setup(phba); 3248 lpfc_sli_queue_setup(phba); 3249 3250 /* Allocate device driver memory */ 3251 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 3252 return -ENOMEM; 3253 3254 return 0; 3255} 3256 3257/** 3258 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 3259 * @phba: pointer to lpfc hba data structure. 3260 * 3261 * This routine is invoked to unset the driver internal resources set up 3262 * specific for supporting the SLI-3 HBA device it attached to. 3263 **/ 3264static void 3265lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 3266{ 3267 /* Free device driver memory allocated */ 3268 lpfc_mem_free_all(phba); 3269 3270 return; 3271} 3272 3273/** 3274 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 3275 * @phba: pointer to lpfc hba data structure. 3276 * 3277 * This routine is invoked to set up the driver internal resources specific to 3278 * support the SLI-4 HBA device it attached to. 3279 * 3280 * Return codes 3281 * 0 - sucessful 3282 * other values - error 3283 **/ 3284static int 3285lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 3286{ 3287 struct lpfc_sli *psli; 3288 int rc; 3289 int i, hbq_count; 3290 3291 /* Before proceed, wait for POST done and device ready */ 3292 rc = lpfc_sli4_post_status_check(phba); 3293 if (rc) 3294 return -ENODEV; 3295 3296 /* 3297 * Initialize timers used by driver 3298 */ 3299 3300 /* Heartbeat timer */ 3301 init_timer(&phba->hb_tmofunc); 3302 phba->hb_tmofunc.function = lpfc_hb_timeout; 3303 phba->hb_tmofunc.data = (unsigned long)phba; 3304 3305 psli = &phba->sli; 3306 /* MBOX heartbeat timer */ 3307 init_timer(&psli->mbox_tmo); 3308 psli->mbox_tmo.function = lpfc_mbox_timeout; 3309 psli->mbox_tmo.data = (unsigned long) phba; 3310 /* Fabric block timer */ 3311 init_timer(&phba->fabric_block_timer); 3312 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3313 phba->fabric_block_timer.data = (unsigned long) phba; 3314 /* EA polling mode timer */ 3315 init_timer(&phba->eratt_poll); 3316 phba->eratt_poll.function = lpfc_poll_eratt; 3317 phba->eratt_poll.data = (unsigned long) phba; 3318 /* 3319 * We need to do a READ_CONFIG mailbox command here before 3320 * calling lpfc_get_cfgparam. For VFs this will report the 3321 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 3322 * All of the resources allocated 3323 * for this Port are tied to these values. 3324 */ 3325 /* Get all the module params for configuring this host */ 3326 lpfc_get_cfgparam(phba); 3327 phba->max_vpi = LPFC_MAX_VPI; 3328 /* This will be set to correct value after the read_config mbox */ 3329 phba->max_vports = 0; 3330 3331 /* Program the default value of vlan_id and fc_map */ 3332 phba->valid_vlan = 0; 3333 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 3334 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 3335 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 3336 3337 /* 3338 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3339 * used to create the sg_dma_buf_pool must be dynamically calculated. 3340 * 2 segments are added since the IOCB needs a command and response bde. 3341 * To insure that the scsi sgl does not cross a 4k page boundary only 3342 * sgl sizes of 1k, 2k, 4k, and 8k are supported. 3343 * Table of sgl sizes and seg_cnt: 3344 * sgl size, sg_seg_cnt total seg 3345 * 1k 50 52 3346 * 2k 114 116 3347 * 4k 242 244 3348 * 8k 498 500 3349 * cmd(32) + rsp(160) + (52 * sizeof(sli4_sge)) = 1024 3350 * cmd(32) + rsp(160) + (116 * sizeof(sli4_sge)) = 2048 3351 * cmd(32) + rsp(160) + (244 * sizeof(sli4_sge)) = 4096 3352 * cmd(32) + rsp(160) + (500 * sizeof(sli4_sge)) = 8192 3353 */ 3354 if (phba->cfg_sg_seg_cnt <= LPFC_DEFAULT_SG_SEG_CNT) 3355 phba->cfg_sg_seg_cnt = 50; 3356 else if (phba->cfg_sg_seg_cnt <= 114) 3357 phba->cfg_sg_seg_cnt = 114; 3358 else if (phba->cfg_sg_seg_cnt <= 242) 3359 phba->cfg_sg_seg_cnt = 242; 3360 else 3361 phba->cfg_sg_seg_cnt = 498; 3362 3363 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) 3364 + sizeof(struct fcp_rsp); 3365 phba->cfg_sg_dma_buf_size += 3366 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)); 3367 3368 /* Initialize buffer queue management fields */ 3369 hbq_count = lpfc_sli_hbq_count(); 3370 for (i = 0; i < hbq_count; ++i) 3371 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 3372 INIT_LIST_HEAD(&phba->rb_pend_list); 3373 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 3374 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 3375 3376 /* 3377 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 3378 */ 3379 /* Initialize the Abort scsi buffer list used by driver */ 3380 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 3381 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 3382 /* This abort list used by worker thread */ 3383 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 3384 3385 /* 3386 * Initialize dirver internal slow-path work queues 3387 */ 3388 3389 /* Driver internel slow-path CQ Event pool */ 3390 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 3391 /* Response IOCB work queue list */ 3392 INIT_LIST_HEAD(&phba->sli4_hba.sp_rspiocb_work_queue); 3393 /* Asynchronous event CQ Event work queue list */ 3394 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 3395 /* Fast-path XRI aborted CQ Event work queue list */ 3396 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 3397 /* Slow-path XRI aborted CQ Event work queue list */ 3398 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 3399 /* Receive queue CQ Event work queue list */ 3400 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 3401 3402 /* Initialize the driver internal SLI layer lists. */ 3403 lpfc_sli_setup(phba); 3404 lpfc_sli_queue_setup(phba); 3405 3406 /* Allocate device driver memory */ 3407 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 3408 if (rc) 3409 return -ENOMEM; 3410 3411 /* Create the bootstrap mailbox command */ 3412 rc = lpfc_create_bootstrap_mbox(phba); 3413 if (unlikely(rc)) 3414 goto out_free_mem; 3415 3416 /* Set up the host's endian order with the device. */ 3417 rc = lpfc_setup_endian_order(phba); 3418 if (unlikely(rc)) 3419 goto out_free_bsmbx; 3420 3421 /* Set up the hba's configuration parameters. */ 3422 rc = lpfc_sli4_read_config(phba); 3423 if (unlikely(rc)) 3424 goto out_free_bsmbx; 3425 3426 /* Perform a function reset */ 3427 rc = lpfc_pci_function_reset(phba); 3428 if (unlikely(rc)) 3429 goto out_free_bsmbx; 3430 3431 /* Create all the SLI4 queues */ 3432 rc = lpfc_sli4_queue_create(phba); 3433 if (rc) 3434 goto out_free_bsmbx; 3435 3436 /* Create driver internal CQE event pool */ 3437 rc = lpfc_sli4_cq_event_pool_create(phba); 3438 if (rc) 3439 goto out_destroy_queue; 3440 3441 /* Initialize and populate the iocb list per host */ 3442 rc = lpfc_init_sgl_list(phba); 3443 if (rc) { 3444 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3445 "1400 Failed to initialize sgl list.\n"); 3446 goto out_destroy_cq_event_pool; 3447 } 3448 rc = lpfc_init_active_sgl_array(phba); 3449 if (rc) { 3450 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3451 "1430 Failed to initialize sgl list.\n"); 3452 goto out_free_sgl_list; 3453 } 3454 3455 rc = lpfc_sli4_init_rpi_hdrs(phba); 3456 if (rc) { 3457 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3458 "1432 Failed to initialize rpi headers.\n"); 3459 goto out_free_active_sgl; 3460 } 3461 3462 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 3463 phba->cfg_fcp_eq_count), GFP_KERNEL); 3464 if (!phba->sli4_hba.fcp_eq_hdl) { 3465 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3466 "2572 Failed allocate memory for fast-path " 3467 "per-EQ handle array\n"); 3468 goto out_remove_rpi_hdrs; 3469 } 3470 3471 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 3472 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 3473 if (!phba->sli4_hba.msix_entries) { 3474 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3475 "2573 Failed allocate memory for msi-x " 3476 "interrupt vector entries\n"); 3477 goto out_free_fcp_eq_hdl; 3478 } 3479 3480 return rc; 3481 3482out_free_fcp_eq_hdl: 3483 kfree(phba->sli4_hba.fcp_eq_hdl); 3484out_remove_rpi_hdrs: 3485 lpfc_sli4_remove_rpi_hdrs(phba); 3486out_free_active_sgl: 3487 lpfc_free_active_sgl(phba); 3488out_free_sgl_list: 3489 lpfc_free_sgl_list(phba); 3490out_destroy_cq_event_pool: 3491 lpfc_sli4_cq_event_pool_destroy(phba); 3492out_destroy_queue: 3493 lpfc_sli4_queue_destroy(phba); 3494out_free_bsmbx: 3495 lpfc_destroy_bootstrap_mbox(phba); 3496out_free_mem: 3497 lpfc_mem_free(phba); 3498 return rc; 3499} 3500 3501/** 3502 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 3503 * @phba: pointer to lpfc hba data structure. 3504 * 3505 * This routine is invoked to unset the driver internal resources set up 3506 * specific for supporting the SLI-4 HBA device it attached to. 3507 **/ 3508static void 3509lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 3510{ 3511 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 3512 3513 /* unregister default FCFI from the HBA */ 3514 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi); 3515 3516 /* Free the default FCR table */ 3517 lpfc_sli_remove_dflt_fcf(phba); 3518 3519 /* Free memory allocated for msi-x interrupt vector entries */ 3520 kfree(phba->sli4_hba.msix_entries); 3521 3522 /* Free memory allocated for fast-path work queue handles */ 3523 kfree(phba->sli4_hba.fcp_eq_hdl); 3524 3525 /* Free the allocated rpi headers. */ 3526 lpfc_sli4_remove_rpi_hdrs(phba); 3527 3528 /* Free the ELS sgl list */ 3529 lpfc_free_active_sgl(phba); 3530 lpfc_free_sgl_list(phba); 3531 3532 /* Free the SCSI sgl management array */ 3533 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 3534 3535 /* Free the SLI4 queues */ 3536 lpfc_sli4_queue_destroy(phba); 3537 3538 /* Free the completion queue EQ event pool */ 3539 lpfc_sli4_cq_event_release_all(phba); 3540 lpfc_sli4_cq_event_pool_destroy(phba); 3541 3542 /* Reset SLI4 HBA FCoE function */ 3543 lpfc_pci_function_reset(phba); 3544 3545 /* Free the bsmbx region. */ 3546 lpfc_destroy_bootstrap_mbox(phba); 3547 3548 /* Free the SLI Layer memory with SLI4 HBAs */ 3549 lpfc_mem_free_all(phba); 3550 3551 /* Free the current connect table */ 3552 list_for_each_entry_safe(conn_entry, next_conn_entry, 3553 &phba->fcf_conn_rec_list, list) 3554 kfree(conn_entry); 3555 3556 return; 3557} 3558 3559/** 3560 * lpfc_init_api_table_setup - Set up init api fucntion jump table 3561 * @phba: The hba struct for which this call is being executed. 3562 * @dev_grp: The HBA PCI-Device group number. 3563 * 3564 * This routine sets up the device INIT interface API function jump table 3565 * in @phba struct. 3566 * 3567 * Returns: 0 - success, -ENODEV - failure. 3568 **/ 3569int 3570lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3571{ 3572 switch (dev_grp) { 3573 case LPFC_PCI_DEV_LP: 3574 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 3575 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 3576 phba->lpfc_stop_port = lpfc_stop_port_s3; 3577 break; 3578 case LPFC_PCI_DEV_OC: 3579 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 3580 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 3581 phba->lpfc_stop_port = lpfc_stop_port_s4; 3582 break; 3583 default: 3584 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3585 "1431 Invalid HBA PCI-device group: 0x%x\n", 3586 dev_grp); 3587 return -ENODEV; 3588 break; 3589 } 3590 return 0; 3591} 3592 3593/** 3594 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 3595 * @phba: pointer to lpfc hba data structure. 3596 * 3597 * This routine is invoked to set up the driver internal resources before the 3598 * device specific resource setup to support the HBA device it attached to. 3599 * 3600 * Return codes 3601 * 0 - sucessful 3602 * other values - error 3603 **/ 3604static int 3605lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 3606{ 3607 /* 3608 * Driver resources common to all SLI revisions 3609 */ 3610 atomic_set(&phba->fast_event_count, 0); 3611 spin_lock_init(&phba->hbalock); 3612 3613 /* Initialize ndlp management spinlock */ 3614 spin_lock_init(&phba->ndlp_lock); 3615 3616 INIT_LIST_HEAD(&phba->port_list); 3617 INIT_LIST_HEAD(&phba->work_list); 3618 init_waitqueue_head(&phba->wait_4_mlo_m_q); 3619 3620 /* Initialize the wait queue head for the kernel thread */ 3621 init_waitqueue_head(&phba->work_waitq); 3622 3623 /* Initialize the scsi buffer list used by driver for scsi IO */ 3624 spin_lock_init(&phba->scsi_buf_list_lock); 3625 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 3626 3627 /* Initialize the fabric iocb list */ 3628 INIT_LIST_HEAD(&phba->fabric_iocb_list); 3629 3630 /* Initialize list to save ELS buffers */ 3631 INIT_LIST_HEAD(&phba->elsbuf); 3632 3633 /* Initialize FCF connection rec list */ 3634 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 3635 3636 return 0; 3637} 3638 3639/** 3640 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 3641 * @phba: pointer to lpfc hba data structure. 3642 * 3643 * This routine is invoked to set up the driver internal resources after the 3644 * device specific resource setup to support the HBA device it attached to. 3645 * 3646 * Return codes 3647 * 0 - sucessful 3648 * other values - error 3649 **/ 3650static int 3651lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 3652{ 3653 int error; 3654 3655 /* Startup the kernel thread for this host adapter. */ 3656 phba->worker_thread = kthread_run(lpfc_do_work, phba, 3657 "lpfc_worker_%d", phba->brd_no); 3658 if (IS_ERR(phba->worker_thread)) { 3659 error = PTR_ERR(phba->worker_thread); 3660 return error; 3661 } 3662 3663 return 0; 3664} 3665 3666/** 3667 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 3668 * @phba: pointer to lpfc hba data structure. 3669 * 3670 * This routine is invoked to unset the driver internal resources set up after 3671 * the device specific resource setup for supporting the HBA device it 3672 * attached to. 3673 **/ 3674static void 3675lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 3676{ 3677 /* Stop kernel worker thread */ 3678 kthread_stop(phba->worker_thread); 3679} 3680 3681/** 3682 * lpfc_free_iocb_list - Free iocb list. 3683 * @phba: pointer to lpfc hba data structure. 3684 * 3685 * This routine is invoked to free the driver's IOCB list and memory. 3686 **/ 3687static void 3688lpfc_free_iocb_list(struct lpfc_hba *phba) 3689{ 3690 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 3691 3692 spin_lock_irq(&phba->hbalock); 3693 list_for_each_entry_safe(iocbq_entry, iocbq_next, 3694 &phba->lpfc_iocb_list, list) { 3695 list_del(&iocbq_entry->list); 3696 kfree(iocbq_entry); 3697 phba->total_iocbq_bufs--; 3698 } 3699 spin_unlock_irq(&phba->hbalock); 3700 3701 return; 3702} 3703 3704/** 3705 * lpfc_init_iocb_list - Allocate and initialize iocb list. 3706 * @phba: pointer to lpfc hba data structure. 3707 * 3708 * This routine is invoked to allocate and initizlize the driver's IOCB 3709 * list and set up the IOCB tag array accordingly. 3710 * 3711 * Return codes 3712 * 0 - sucessful 3713 * other values - error 3714 **/ 3715static int 3716lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 3717{ 3718 struct lpfc_iocbq *iocbq_entry = NULL; 3719 uint16_t iotag; 3720 int i; 3721 3722 /* Initialize and populate the iocb list per host. */ 3723 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 3724 for (i = 0; i < iocb_count; i++) { 3725 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 3726 if (iocbq_entry == NULL) { 3727 printk(KERN_ERR "%s: only allocated %d iocbs of " 3728 "expected %d count. Unloading driver.\n", 3729 __func__, i, LPFC_IOCB_LIST_CNT); 3730 goto out_free_iocbq; 3731 } 3732 3733 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 3734 if (iotag == 0) { 3735 kfree(iocbq_entry); 3736 printk(KERN_ERR "%s: failed to allocate IOTAG. " 3737 "Unloading driver.\n", __func__); 3738 goto out_free_iocbq; 3739 } 3740 iocbq_entry->sli4_xritag = NO_XRI; 3741 3742 spin_lock_irq(&phba->hbalock); 3743 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 3744 phba->total_iocbq_bufs++; 3745 spin_unlock_irq(&phba->hbalock); 3746 } 3747 3748 return 0; 3749 3750out_free_iocbq: 3751 lpfc_free_iocb_list(phba); 3752 3753 return -ENOMEM; 3754} 3755 3756/** 3757 * lpfc_free_sgl_list - Free sgl list. 3758 * @phba: pointer to lpfc hba data structure. 3759 * 3760 * This routine is invoked to free the driver's sgl list and memory. 3761 **/ 3762static void 3763lpfc_free_sgl_list(struct lpfc_hba *phba) 3764{ 3765 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 3766 LIST_HEAD(sglq_list); 3767 int rc = 0; 3768 3769 spin_lock_irq(&phba->hbalock); 3770 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 3771 spin_unlock_irq(&phba->hbalock); 3772 3773 list_for_each_entry_safe(sglq_entry, sglq_next, 3774 &sglq_list, list) { 3775 list_del(&sglq_entry->list); 3776 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 3777 kfree(sglq_entry); 3778 phba->sli4_hba.total_sglq_bufs--; 3779 } 3780 rc = lpfc_sli4_remove_all_sgl_pages(phba); 3781 if (rc) { 3782 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3783 "2005 Unable to deregister pages from HBA: %x", rc); 3784 } 3785 kfree(phba->sli4_hba.lpfc_els_sgl_array); 3786} 3787 3788/** 3789 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 3790 * @phba: pointer to lpfc hba data structure. 3791 * 3792 * This routine is invoked to allocate the driver's active sgl memory. 3793 * This array will hold the sglq_entry's for active IOs. 3794 **/ 3795static int 3796lpfc_init_active_sgl_array(struct lpfc_hba *phba) 3797{ 3798 int size; 3799 size = sizeof(struct lpfc_sglq *); 3800 size *= phba->sli4_hba.max_cfg_param.max_xri; 3801 3802 phba->sli4_hba.lpfc_sglq_active_list = 3803 kzalloc(size, GFP_KERNEL); 3804 if (!phba->sli4_hba.lpfc_sglq_active_list) 3805 return -ENOMEM; 3806 return 0; 3807} 3808 3809/** 3810 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 3811 * @phba: pointer to lpfc hba data structure. 3812 * 3813 * This routine is invoked to walk through the array of active sglq entries 3814 * and free all of the resources. 3815 * This is just a place holder for now. 3816 **/ 3817static void 3818lpfc_free_active_sgl(struct lpfc_hba *phba) 3819{ 3820 kfree(phba->sli4_hba.lpfc_sglq_active_list); 3821} 3822 3823/** 3824 * lpfc_init_sgl_list - Allocate and initialize sgl list. 3825 * @phba: pointer to lpfc hba data structure. 3826 * 3827 * This routine is invoked to allocate and initizlize the driver's sgl 3828 * list and set up the sgl xritag tag array accordingly. 3829 * 3830 * Return codes 3831 * 0 - sucessful 3832 * other values - error 3833 **/ 3834static int 3835lpfc_init_sgl_list(struct lpfc_hba *phba) 3836{ 3837 struct lpfc_sglq *sglq_entry = NULL; 3838 int i; 3839 int els_xri_cnt; 3840 3841 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3842 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3843 "2400 lpfc_init_sgl_list els %d.\n", 3844 els_xri_cnt); 3845 /* Initialize and populate the sglq list per host/VF. */ 3846 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 3847 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 3848 3849 /* Sanity check on XRI management */ 3850 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 3851 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3852 "2562 No room left for SCSI XRI allocation: " 3853 "max_xri=%d, els_xri=%d\n", 3854 phba->sli4_hba.max_cfg_param.max_xri, 3855 els_xri_cnt); 3856 return -ENOMEM; 3857 } 3858 3859 /* Allocate memory for the ELS XRI management array */ 3860 phba->sli4_hba.lpfc_els_sgl_array = 3861 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 3862 GFP_KERNEL); 3863 3864 if (!phba->sli4_hba.lpfc_els_sgl_array) { 3865 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3866 "2401 Failed to allocate memory for ELS " 3867 "XRI management array of size %d.\n", 3868 els_xri_cnt); 3869 return -ENOMEM; 3870 } 3871 3872 /* Keep the SCSI XRI into the XRI management array */ 3873 phba->sli4_hba.scsi_xri_max = 3874 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3875 phba->sli4_hba.scsi_xri_cnt = 0; 3876 3877 phba->sli4_hba.lpfc_scsi_psb_array = 3878 kzalloc((sizeof(struct lpfc_scsi_buf *) * 3879 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 3880 3881 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 3882 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3883 "2563 Failed to allocate memory for SCSI " 3884 "XRI management array of size %d.\n", 3885 phba->sli4_hba.scsi_xri_max); 3886 kfree(phba->sli4_hba.lpfc_els_sgl_array); 3887 return -ENOMEM; 3888 } 3889 3890 for (i = 0; i < els_xri_cnt; i++) { 3891 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 3892 if (sglq_entry == NULL) { 3893 printk(KERN_ERR "%s: only allocated %d sgls of " 3894 "expected %d count. Unloading driver.\n", 3895 __func__, i, els_xri_cnt); 3896 goto out_free_mem; 3897 } 3898 3899 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba); 3900 if (sglq_entry->sli4_xritag == NO_XRI) { 3901 kfree(sglq_entry); 3902 printk(KERN_ERR "%s: failed to allocate XRI.\n" 3903 "Unloading driver.\n", __func__); 3904 goto out_free_mem; 3905 } 3906 sglq_entry->buff_type = GEN_BUFF_TYPE; 3907 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 3908 if (sglq_entry->virt == NULL) { 3909 kfree(sglq_entry); 3910 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 3911 "Unloading driver.\n", __func__); 3912 goto out_free_mem; 3913 } 3914 sglq_entry->sgl = sglq_entry->virt; 3915 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 3916 3917 /* The list order is used by later block SGL registraton */ 3918 spin_lock_irq(&phba->hbalock); 3919 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 3920 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 3921 phba->sli4_hba.total_sglq_bufs++; 3922 spin_unlock_irq(&phba->hbalock); 3923 } 3924 return 0; 3925 3926out_free_mem: 3927 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 3928 lpfc_free_sgl_list(phba); 3929 return -ENOMEM; 3930} 3931 3932/** 3933 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 3934 * @phba: pointer to lpfc hba data structure. 3935 * 3936 * This routine is invoked to post rpi header templates to the 3937 * HBA consistent with the SLI-4 interface spec. This routine 3938 * posts a PAGE_SIZE memory region to the port to hold up to 3939 * PAGE_SIZE modulo 64 rpi context headers. 3940 * No locks are held here because this is an initialization routine 3941 * called only from probe or lpfc_online when interrupts are not 3942 * enabled and the driver is reinitializing the device. 3943 * 3944 * Return codes 3945 * 0 - sucessful 3946 * ENOMEM - No availble memory 3947 * EIO - The mailbox failed to complete successfully. 3948 **/ 3949int 3950lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 3951{ 3952 int rc = 0; 3953 int longs; 3954 uint16_t rpi_count; 3955 struct lpfc_rpi_hdr *rpi_hdr; 3956 3957 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 3958 3959 /* 3960 * Provision an rpi bitmask range for discovery. The total count 3961 * is the difference between max and base + 1. 3962 */ 3963 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base + 3964 phba->sli4_hba.max_cfg_param.max_rpi - 1; 3965 3966 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG; 3967 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long), 3968 GFP_KERNEL); 3969 if (!phba->sli4_hba.rpi_bmask) 3970 return -ENOMEM; 3971 3972 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 3973 if (!rpi_hdr) { 3974 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 3975 "0391 Error during rpi post operation\n"); 3976 lpfc_sli4_remove_rpis(phba); 3977 rc = -ENODEV; 3978 } 3979 3980 return rc; 3981} 3982 3983/** 3984 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 3985 * @phba: pointer to lpfc hba data structure. 3986 * 3987 * This routine is invoked to allocate a single 4KB memory region to 3988 * support rpis and stores them in the phba. This single region 3989 * provides support for up to 64 rpis. The region is used globally 3990 * by the device. 3991 * 3992 * Returns: 3993 * A valid rpi hdr on success. 3994 * A NULL pointer on any failure. 3995 **/ 3996struct lpfc_rpi_hdr * 3997lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 3998{ 3999 uint16_t rpi_limit, curr_rpi_range; 4000 struct lpfc_dmabuf *dmabuf; 4001 struct lpfc_rpi_hdr *rpi_hdr; 4002 4003 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 4004 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4005 4006 spin_lock_irq(&phba->hbalock); 4007 curr_rpi_range = phba->sli4_hba.next_rpi; 4008 spin_unlock_irq(&phba->hbalock); 4009 4010 /* 4011 * The port has a limited number of rpis. The increment here 4012 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 4013 * and to allow the full max_rpi range per port. 4014 */ 4015 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 4016 return NULL; 4017 4018 /* 4019 * First allocate the protocol header region for the port. The 4020 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 4021 */ 4022 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4023 if (!dmabuf) 4024 return NULL; 4025 4026 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4027 LPFC_HDR_TEMPLATE_SIZE, 4028 &dmabuf->phys, 4029 GFP_KERNEL); 4030 if (!dmabuf->virt) { 4031 rpi_hdr = NULL; 4032 goto err_free_dmabuf; 4033 } 4034 4035 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 4036 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 4037 rpi_hdr = NULL; 4038 goto err_free_coherent; 4039 } 4040 4041 /* Save the rpi header data for cleanup later. */ 4042 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 4043 if (!rpi_hdr) 4044 goto err_free_coherent; 4045 4046 rpi_hdr->dmabuf = dmabuf; 4047 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 4048 rpi_hdr->page_count = 1; 4049 spin_lock_irq(&phba->hbalock); 4050 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi; 4051 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 4052 4053 /* 4054 * The next_rpi stores the next module-64 rpi value to post 4055 * in any subsequent rpi memory region postings. 4056 */ 4057 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT; 4058 spin_unlock_irq(&phba->hbalock); 4059 return rpi_hdr; 4060 4061 err_free_coherent: 4062 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 4063 dmabuf->virt, dmabuf->phys); 4064 err_free_dmabuf: 4065 kfree(dmabuf); 4066 return NULL; 4067} 4068 4069/** 4070 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 4071 * @phba: pointer to lpfc hba data structure. 4072 * 4073 * This routine is invoked to remove all memory resources allocated 4074 * to support rpis. This routine presumes the caller has released all 4075 * rpis consumed by fabric or port logins and is prepared to have 4076 * the header pages removed. 4077 **/ 4078void 4079lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 4080{ 4081 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 4082 4083 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 4084 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 4085 list_del(&rpi_hdr->list); 4086 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 4087 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 4088 kfree(rpi_hdr->dmabuf); 4089 kfree(rpi_hdr); 4090 } 4091 4092 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4093 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask)); 4094} 4095 4096/** 4097 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 4098 * @pdev: pointer to pci device data structure. 4099 * 4100 * This routine is invoked to allocate the driver hba data structure for an 4101 * HBA device. If the allocation is successful, the phba reference to the 4102 * PCI device data structure is set. 4103 * 4104 * Return codes 4105 * pointer to @phba - sucessful 4106 * NULL - error 4107 **/ 4108static struct lpfc_hba * 4109lpfc_hba_alloc(struct pci_dev *pdev) 4110{ 4111 struct lpfc_hba *phba; 4112 4113 /* Allocate memory for HBA structure */ 4114 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 4115 if (!phba) { 4116 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4117 "1417 Failed to allocate hba struct.\n"); 4118 return NULL; 4119 } 4120 4121 /* Set reference to PCI device in HBA structure */ 4122 phba->pcidev = pdev; 4123 4124 /* Assign an unused board number */ 4125 phba->brd_no = lpfc_get_instance(); 4126 if (phba->brd_no < 0) { 4127 kfree(phba); 4128 return NULL; 4129 } 4130 4131 return phba; 4132} 4133 4134/** 4135 * lpfc_hba_free - Free driver hba data structure with a device. 4136 * @phba: pointer to lpfc hba data structure. 4137 * 4138 * This routine is invoked to free the driver hba data structure with an 4139 * HBA device. 4140 **/ 4141static void 4142lpfc_hba_free(struct lpfc_hba *phba) 4143{ 4144 /* Release the driver assigned board number */ 4145 idr_remove(&lpfc_hba_index, phba->brd_no); 4146 4147 kfree(phba); 4148 return; 4149} 4150 4151/** 4152 * lpfc_create_shost - Create hba physical port with associated scsi host. 4153 * @phba: pointer to lpfc hba data structure. 4154 * 4155 * This routine is invoked to create HBA physical port and associate a SCSI 4156 * host with it. 4157 * 4158 * Return codes 4159 * 0 - sucessful 4160 * other values - error 4161 **/ 4162static int 4163lpfc_create_shost(struct lpfc_hba *phba) 4164{ 4165 struct lpfc_vport *vport; 4166 struct Scsi_Host *shost; 4167 4168 /* Initialize HBA FC structure */ 4169 phba->fc_edtov = FF_DEF_EDTOV; 4170 phba->fc_ratov = FF_DEF_RATOV; 4171 phba->fc_altov = FF_DEF_ALTOV; 4172 phba->fc_arbtov = FF_DEF_ARBTOV; 4173 4174 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 4175 if (!vport) 4176 return -ENODEV; 4177 4178 shost = lpfc_shost_from_vport(vport); 4179 phba->pport = vport; 4180 lpfc_debugfs_initialize(vport); 4181 /* Put reference to SCSI host to driver's device private data */ 4182 pci_set_drvdata(phba->pcidev, shost); 4183 4184 return 0; 4185} 4186 4187/** 4188 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 4189 * @phba: pointer to lpfc hba data structure. 4190 * 4191 * This routine is invoked to destroy HBA physical port and the associated 4192 * SCSI host. 4193 **/ 4194static void 4195lpfc_destroy_shost(struct lpfc_hba *phba) 4196{ 4197 struct lpfc_vport *vport = phba->pport; 4198 4199 /* Destroy physical port that associated with the SCSI host */ 4200 destroy_port(vport); 4201 4202 return; 4203} 4204 4205/** 4206 * lpfc_setup_bg - Setup Block guard structures and debug areas. 4207 * @phba: pointer to lpfc hba data structure. 4208 * @shost: the shost to be used to detect Block guard settings. 4209 * 4210 * This routine sets up the local Block guard protocol settings for @shost. 4211 * This routine also allocates memory for debugging bg buffers. 4212 **/ 4213static void 4214lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 4215{ 4216 int pagecnt = 10; 4217 if (lpfc_prot_mask && lpfc_prot_guard) { 4218 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4219 "1478 Registering BlockGuard with the " 4220 "SCSI layer\n"); 4221 scsi_host_set_prot(shost, lpfc_prot_mask); 4222 scsi_host_set_guard(shost, lpfc_prot_guard); 4223 } 4224 if (!_dump_buf_data) { 4225 while (pagecnt) { 4226 spin_lock_init(&_dump_buf_lock); 4227 _dump_buf_data = 4228 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4229 if (_dump_buf_data) { 4230 printk(KERN_ERR "BLKGRD allocated %d pages for " 4231 "_dump_buf_data at 0x%p\n", 4232 (1 << pagecnt), _dump_buf_data); 4233 _dump_buf_data_order = pagecnt; 4234 memset(_dump_buf_data, 0, 4235 ((1 << PAGE_SHIFT) << pagecnt)); 4236 break; 4237 } else 4238 --pagecnt; 4239 } 4240 if (!_dump_buf_data_order) 4241 printk(KERN_ERR "BLKGRD ERROR unable to allocate " 4242 "memory for hexdump\n"); 4243 } else 4244 printk(KERN_ERR "BLKGRD already allocated _dump_buf_data=0x%p" 4245 "\n", _dump_buf_data); 4246 if (!_dump_buf_dif) { 4247 while (pagecnt) { 4248 _dump_buf_dif = 4249 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4250 if (_dump_buf_dif) { 4251 printk(KERN_ERR "BLKGRD allocated %d pages for " 4252 "_dump_buf_dif at 0x%p\n", 4253 (1 << pagecnt), _dump_buf_dif); 4254 _dump_buf_dif_order = pagecnt; 4255 memset(_dump_buf_dif, 0, 4256 ((1 << PAGE_SHIFT) << pagecnt)); 4257 break; 4258 } else 4259 --pagecnt; 4260 } 4261 if (!_dump_buf_dif_order) 4262 printk(KERN_ERR "BLKGRD ERROR unable to allocate " 4263 "memory for hexdump\n"); 4264 } else 4265 printk(KERN_ERR "BLKGRD already allocated _dump_buf_dif=0x%p\n", 4266 _dump_buf_dif); 4267} 4268 4269/** 4270 * lpfc_post_init_setup - Perform necessary device post initialization setup. 4271 * @phba: pointer to lpfc hba data structure. 4272 * 4273 * This routine is invoked to perform all the necessary post initialization 4274 * setup for the device. 4275 **/ 4276static void 4277lpfc_post_init_setup(struct lpfc_hba *phba) 4278{ 4279 struct Scsi_Host *shost; 4280 struct lpfc_adapter_event_header adapter_event; 4281 4282 /* Get the default values for Model Name and Description */ 4283 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 4284 4285 /* 4286 * hba setup may have changed the hba_queue_depth so we need to 4287 * adjust the value of can_queue. 4288 */ 4289 shost = pci_get_drvdata(phba->pcidev); 4290 shost->can_queue = phba->cfg_hba_queue_depth - 10; 4291 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 4292 lpfc_setup_bg(phba, shost); 4293 4294 lpfc_host_attrib_init(shost); 4295 4296 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 4297 spin_lock_irq(shost->host_lock); 4298 lpfc_poll_start_timer(phba); 4299 spin_unlock_irq(shost->host_lock); 4300 } 4301 4302 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4303 "0428 Perform SCSI scan\n"); 4304 /* Send board arrival event to upper layer */ 4305 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 4306 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 4307 fc_host_post_vendor_event(shost, fc_get_event_number(), 4308 sizeof(adapter_event), 4309 (char *) &adapter_event, 4310 LPFC_NL_VENDOR_ID); 4311 return; 4312} 4313 4314/** 4315 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 4316 * @phba: pointer to lpfc hba data structure. 4317 * 4318 * This routine is invoked to set up the PCI device memory space for device 4319 * with SLI-3 interface spec. 4320 * 4321 * Return codes 4322 * 0 - sucessful 4323 * other values - error 4324 **/ 4325static int 4326lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 4327{ 4328 struct pci_dev *pdev; 4329 unsigned long bar0map_len, bar2map_len; 4330 int i, hbq_count; 4331 void *ptr; 4332 int error = -ENODEV; 4333 4334 /* Obtain PCI device reference */ 4335 if (!phba->pcidev) 4336 return error; 4337 else 4338 pdev = phba->pcidev; 4339 4340 /* Set the device DMA mask size */ 4341 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) 4342 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) 4343 return error; 4344 4345 /* Get the bus address of Bar0 and Bar2 and the number of bytes 4346 * required by each mapping. 4347 */ 4348 phba->pci_bar0_map = pci_resource_start(pdev, 0); 4349 bar0map_len = pci_resource_len(pdev, 0); 4350 4351 phba->pci_bar2_map = pci_resource_start(pdev, 2); 4352 bar2map_len = pci_resource_len(pdev, 2); 4353 4354 /* Map HBA SLIM to a kernel virtual address. */ 4355 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 4356 if (!phba->slim_memmap_p) { 4357 dev_printk(KERN_ERR, &pdev->dev, 4358 "ioremap failed for SLIM memory.\n"); 4359 goto out; 4360 } 4361 4362 /* Map HBA Control Registers to a kernel virtual address. */ 4363 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 4364 if (!phba->ctrl_regs_memmap_p) { 4365 dev_printk(KERN_ERR, &pdev->dev, 4366 "ioremap failed for HBA control registers.\n"); 4367 goto out_iounmap_slim; 4368 } 4369 4370 /* Allocate memory for SLI-2 structures */ 4371 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 4372 SLI2_SLIM_SIZE, 4373 &phba->slim2p.phys, 4374 GFP_KERNEL); 4375 if (!phba->slim2p.virt) 4376 goto out_iounmap; 4377 4378 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 4379 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 4380 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 4381 phba->IOCBs = (phba->slim2p.virt + 4382 offsetof(struct lpfc_sli2_slim, IOCBs)); 4383 4384 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 4385 lpfc_sli_hbq_size(), 4386 &phba->hbqslimp.phys, 4387 GFP_KERNEL); 4388 if (!phba->hbqslimp.virt) 4389 goto out_free_slim; 4390 4391 hbq_count = lpfc_sli_hbq_count(); 4392 ptr = phba->hbqslimp.virt; 4393 for (i = 0; i < hbq_count; ++i) { 4394 phba->hbqs[i].hbq_virt = ptr; 4395 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4396 ptr += (lpfc_hbq_defs[i]->entry_count * 4397 sizeof(struct lpfc_hbq_entry)); 4398 } 4399 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 4400 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 4401 4402 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 4403 4404 INIT_LIST_HEAD(&phba->rb_pend_list); 4405 4406 phba->MBslimaddr = phba->slim_memmap_p; 4407 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 4408 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 4409 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 4410 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 4411 4412 return 0; 4413 4414out_free_slim: 4415 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 4416 phba->slim2p.virt, phba->slim2p.phys); 4417out_iounmap: 4418 iounmap(phba->ctrl_regs_memmap_p); 4419out_iounmap_slim: 4420 iounmap(phba->slim_memmap_p); 4421out: 4422 return error; 4423} 4424 4425/** 4426 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 4427 * @phba: pointer to lpfc hba data structure. 4428 * 4429 * This routine is invoked to unset the PCI device memory space for device 4430 * with SLI-3 interface spec. 4431 **/ 4432static void 4433lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 4434{ 4435 struct pci_dev *pdev; 4436 4437 /* Obtain PCI device reference */ 4438 if (!phba->pcidev) 4439 return; 4440 else 4441 pdev = phba->pcidev; 4442 4443 /* Free coherent DMA memory allocated */ 4444 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 4445 phba->hbqslimp.virt, phba->hbqslimp.phys); 4446 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 4447 phba->slim2p.virt, phba->slim2p.phys); 4448 4449 /* I/O memory unmap */ 4450 iounmap(phba->ctrl_regs_memmap_p); 4451 iounmap(phba->slim_memmap_p); 4452 4453 return; 4454} 4455 4456/** 4457 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 4458 * @phba: pointer to lpfc hba data structure. 4459 * 4460 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 4461 * done and check status. 4462 * 4463 * Return 0 if successful, otherwise -ENODEV. 4464 **/ 4465int 4466lpfc_sli4_post_status_check(struct lpfc_hba *phba) 4467{ 4468 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg, scratchpad; 4469 uint32_t onlnreg0, onlnreg1; 4470 int i, port_error = -ENODEV; 4471 4472 if (!phba->sli4_hba.STAregaddr) 4473 return -ENODEV; 4474 4475 /* With uncoverable error, log the error message and return error */ 4476 onlnreg0 = readl(phba->sli4_hba.ONLINE0regaddr); 4477 onlnreg1 = readl(phba->sli4_hba.ONLINE1regaddr); 4478 if ((onlnreg0 != LPFC_ONLINE_NERR) || (onlnreg1 != LPFC_ONLINE_NERR)) { 4479 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr); 4480 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr); 4481 if (uerrlo_reg.word0 || uerrhi_reg.word0) { 4482 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4483 "1422 HBA Unrecoverable error: " 4484 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " 4485 "online0_reg=0x%x, online1_reg=0x%x\n", 4486 uerrlo_reg.word0, uerrhi_reg.word0, 4487 onlnreg0, onlnreg1); 4488 } 4489 return -ENODEV; 4490 } 4491 4492 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 4493 for (i = 0; i < 3000; i++) { 4494 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr); 4495 /* Encounter fatal POST error, break out */ 4496 if (bf_get(lpfc_hst_state_perr, &sta_reg)) { 4497 port_error = -ENODEV; 4498 break; 4499 } 4500 if (LPFC_POST_STAGE_ARMFW_READY == 4501 bf_get(lpfc_hst_state_port_status, &sta_reg)) { 4502 port_error = 0; 4503 break; 4504 } 4505 msleep(10); 4506 } 4507 4508 if (port_error) 4509 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4510 "1408 Failure HBA POST Status: sta_reg=0x%x, " 4511 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, " 4512 "dl=x%x, pstatus=x%x\n", sta_reg.word0, 4513 bf_get(lpfc_hst_state_perr, &sta_reg), 4514 bf_get(lpfc_hst_state_sfi, &sta_reg), 4515 bf_get(lpfc_hst_state_nip, &sta_reg), 4516 bf_get(lpfc_hst_state_ipc, &sta_reg), 4517 bf_get(lpfc_hst_state_xrom, &sta_reg), 4518 bf_get(lpfc_hst_state_dl, &sta_reg), 4519 bf_get(lpfc_hst_state_port_status, &sta_reg)); 4520 4521 /* Log device information */ 4522 scratchpad.word0 = readl(phba->sli4_hba.SCRATCHPADregaddr); 4523 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4524 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, " 4525 "FeatureL1=0x%x, FeatureL2=0x%x\n", 4526 bf_get(lpfc_scratchpad_chiptype, &scratchpad), 4527 bf_get(lpfc_scratchpad_slirev, &scratchpad), 4528 bf_get(lpfc_scratchpad_featurelevel1, &scratchpad), 4529 bf_get(lpfc_scratchpad_featurelevel2, &scratchpad)); 4530 4531 return port_error; 4532} 4533 4534/** 4535 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 4536 * @phba: pointer to lpfc hba data structure. 4537 * 4538 * This routine is invoked to set up SLI4 BAR0 PCI config space register 4539 * memory map. 4540 **/ 4541static void 4542lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba) 4543{ 4544 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 4545 LPFC_UERR_STATUS_LO; 4546 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 4547 LPFC_UERR_STATUS_HI; 4548 phba->sli4_hba.ONLINE0regaddr = phba->sli4_hba.conf_regs_memmap_p + 4549 LPFC_ONLINE0; 4550 phba->sli4_hba.ONLINE1regaddr = phba->sli4_hba.conf_regs_memmap_p + 4551 LPFC_ONLINE1; 4552 phba->sli4_hba.SCRATCHPADregaddr = phba->sli4_hba.conf_regs_memmap_p + 4553 LPFC_SCRATCHPAD; 4554} 4555 4556/** 4557 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 4558 * @phba: pointer to lpfc hba data structure. 4559 * 4560 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 4561 * memory map. 4562 **/ 4563static void 4564lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 4565{ 4566 4567 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4568 LPFC_HST_STATE; 4569 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4570 LPFC_HST_ISR0; 4571 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4572 LPFC_HST_IMR0; 4573 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4574 LPFC_HST_ISCR0; 4575 return; 4576} 4577 4578/** 4579 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 4580 * @phba: pointer to lpfc hba data structure. 4581 * @vf: virtual function number 4582 * 4583 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 4584 * based on the given viftual function number, @vf. 4585 * 4586 * Return 0 if successful, otherwise -ENODEV. 4587 **/ 4588static int 4589lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 4590{ 4591 if (vf > LPFC_VIR_FUNC_MAX) 4592 return -ENODEV; 4593 4594 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4595 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 4596 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4597 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 4598 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4599 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 4600 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4601 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 4602 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4603 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 4604 return 0; 4605} 4606 4607/** 4608 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 4609 * @phba: pointer to lpfc hba data structure. 4610 * 4611 * This routine is invoked to create the bootstrap mailbox 4612 * region consistent with the SLI-4 interface spec. This 4613 * routine allocates all memory necessary to communicate 4614 * mailbox commands to the port and sets up all alignment 4615 * needs. No locks are expected to be held when calling 4616 * this routine. 4617 * 4618 * Return codes 4619 * 0 - sucessful 4620 * ENOMEM - could not allocated memory. 4621 **/ 4622static int 4623lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 4624{ 4625 uint32_t bmbx_size; 4626 struct lpfc_dmabuf *dmabuf; 4627 struct dma_address *dma_address; 4628 uint32_t pa_addr; 4629 uint64_t phys_addr; 4630 4631 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4632 if (!dmabuf) 4633 return -ENOMEM; 4634 4635 /* 4636 * The bootstrap mailbox region is comprised of 2 parts 4637 * plus an alignment restriction of 16 bytes. 4638 */ 4639 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 4640 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4641 bmbx_size, 4642 &dmabuf->phys, 4643 GFP_KERNEL); 4644 if (!dmabuf->virt) { 4645 kfree(dmabuf); 4646 return -ENOMEM; 4647 } 4648 memset(dmabuf->virt, 0, bmbx_size); 4649 4650 /* 4651 * Initialize the bootstrap mailbox pointers now so that the register 4652 * operations are simple later. The mailbox dma address is required 4653 * to be 16-byte aligned. Also align the virtual memory as each 4654 * maibox is copied into the bmbx mailbox region before issuing the 4655 * command to the port. 4656 */ 4657 phba->sli4_hba.bmbx.dmabuf = dmabuf; 4658 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 4659 4660 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 4661 LPFC_ALIGN_16_BYTE); 4662 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 4663 LPFC_ALIGN_16_BYTE); 4664 4665 /* 4666 * Set the high and low physical addresses now. The SLI4 alignment 4667 * requirement is 16 bytes and the mailbox is posted to the port 4668 * as two 30-bit addresses. The other data is a bit marking whether 4669 * the 30-bit address is the high or low address. 4670 * Upcast bmbx aphys to 64bits so shift instruction compiles 4671 * clean on 32 bit machines. 4672 */ 4673 dma_address = &phba->sli4_hba.bmbx.dma_address; 4674 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 4675 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 4676 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 4677 LPFC_BMBX_BIT1_ADDR_HI); 4678 4679 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 4680 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 4681 LPFC_BMBX_BIT1_ADDR_LO); 4682 return 0; 4683} 4684 4685/** 4686 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 4687 * @phba: pointer to lpfc hba data structure. 4688 * 4689 * This routine is invoked to teardown the bootstrap mailbox 4690 * region and release all host resources. This routine requires 4691 * the caller to ensure all mailbox commands recovered, no 4692 * additional mailbox comands are sent, and interrupts are disabled 4693 * before calling this routine. 4694 * 4695 **/ 4696static void 4697lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 4698{ 4699 dma_free_coherent(&phba->pcidev->dev, 4700 phba->sli4_hba.bmbx.bmbx_size, 4701 phba->sli4_hba.bmbx.dmabuf->virt, 4702 phba->sli4_hba.bmbx.dmabuf->phys); 4703 4704 kfree(phba->sli4_hba.bmbx.dmabuf); 4705 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 4706} 4707 4708/** 4709 * lpfc_sli4_read_config - Get the config parameters. 4710 * @phba: pointer to lpfc hba data structure. 4711 * 4712 * This routine is invoked to read the configuration parameters from the HBA. 4713 * The configuration parameters are used to set the base and maximum values 4714 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 4715 * allocation for the port. 4716 * 4717 * Return codes 4718 * 0 - sucessful 4719 * ENOMEM - No availble memory 4720 * EIO - The mailbox failed to complete successfully. 4721 **/ 4722static int 4723lpfc_sli4_read_config(struct lpfc_hba *phba) 4724{ 4725 LPFC_MBOXQ_t *pmb; 4726 struct lpfc_mbx_read_config *rd_config; 4727 uint32_t rc = 0; 4728 4729 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4730 if (!pmb) { 4731 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4732 "2011 Unable to allocate memory for issuing " 4733 "SLI_CONFIG_SPECIAL mailbox command\n"); 4734 return -ENOMEM; 4735 } 4736 4737 lpfc_read_config(phba, pmb); 4738 4739 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 4740 if (rc != MBX_SUCCESS) { 4741 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4742 "2012 Mailbox failed , mbxCmd x%x " 4743 "READ_CONFIG, mbxStatus x%x\n", 4744 bf_get(lpfc_mqe_command, &pmb->u.mqe), 4745 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 4746 rc = -EIO; 4747 } else { 4748 rd_config = &pmb->u.mqe.un.rd_config; 4749 phba->sli4_hba.max_cfg_param.max_xri = 4750 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 4751 phba->sli4_hba.max_cfg_param.xri_base = 4752 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 4753 phba->sli4_hba.max_cfg_param.max_vpi = 4754 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 4755 phba->sli4_hba.max_cfg_param.vpi_base = 4756 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 4757 phba->sli4_hba.max_cfg_param.max_rpi = 4758 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 4759 phba->sli4_hba.max_cfg_param.rpi_base = 4760 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 4761 phba->sli4_hba.max_cfg_param.max_vfi = 4762 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 4763 phba->sli4_hba.max_cfg_param.vfi_base = 4764 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 4765 phba->sli4_hba.max_cfg_param.max_fcfi = 4766 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 4767 phba->sli4_hba.max_cfg_param.fcfi_base = 4768 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config); 4769 phba->sli4_hba.max_cfg_param.max_eq = 4770 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 4771 phba->sli4_hba.max_cfg_param.max_rq = 4772 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 4773 phba->sli4_hba.max_cfg_param.max_wq = 4774 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 4775 phba->sli4_hba.max_cfg_param.max_cq = 4776 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 4777 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 4778 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 4779 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 4780 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 4781 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4782 phba->max_vpi = phba->sli4_hba.max_cfg_param.max_vpi; 4783 phba->max_vports = phba->max_vpi; 4784 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4785 "2003 cfg params XRI(B:%d M:%d), " 4786 "VPI(B:%d M:%d) " 4787 "VFI(B:%d M:%d) " 4788 "RPI(B:%d M:%d) " 4789 "FCFI(B:%d M:%d)\n", 4790 phba->sli4_hba.max_cfg_param.xri_base, 4791 phba->sli4_hba.max_cfg_param.max_xri, 4792 phba->sli4_hba.max_cfg_param.vpi_base, 4793 phba->sli4_hba.max_cfg_param.max_vpi, 4794 phba->sli4_hba.max_cfg_param.vfi_base, 4795 phba->sli4_hba.max_cfg_param.max_vfi, 4796 phba->sli4_hba.max_cfg_param.rpi_base, 4797 phba->sli4_hba.max_cfg_param.max_rpi, 4798 phba->sli4_hba.max_cfg_param.fcfi_base, 4799 phba->sli4_hba.max_cfg_param.max_fcfi); 4800 } 4801 mempool_free(pmb, phba->mbox_mem_pool); 4802 4803 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 4804 if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri)) 4805 phba->cfg_hba_queue_depth = 4806 phba->sli4_hba.max_cfg_param.max_xri; 4807 return rc; 4808} 4809 4810/** 4811 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order. 4812 * @phba: pointer to lpfc hba data structure. 4813 * 4814 * This routine is invoked to setup the host-side endian order to the 4815 * HBA consistent with the SLI-4 interface spec. 4816 * 4817 * Return codes 4818 * 0 - sucessful 4819 * ENOMEM - No availble memory 4820 * EIO - The mailbox failed to complete successfully. 4821 **/ 4822static int 4823lpfc_setup_endian_order(struct lpfc_hba *phba) 4824{ 4825 LPFC_MBOXQ_t *mboxq; 4826 uint32_t rc = 0; 4827 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 4828 HOST_ENDIAN_HIGH_WORD1}; 4829 4830 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4831 if (!mboxq) { 4832 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4833 "0492 Unable to allocate memory for issuing " 4834 "SLI_CONFIG_SPECIAL mailbox command\n"); 4835 return -ENOMEM; 4836 } 4837 4838 /* 4839 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two 4840 * words to contain special data values and no other data. 4841 */ 4842 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 4843 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 4844 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4845 if (rc != MBX_SUCCESS) { 4846 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4847 "0493 SLI_CONFIG_SPECIAL mailbox failed with " 4848 "status x%x\n", 4849 rc); 4850 rc = -EIO; 4851 } 4852 4853 mempool_free(mboxq, phba->mbox_mem_pool); 4854 return rc; 4855} 4856 4857/** 4858 * lpfc_sli4_queue_create - Create all the SLI4 queues 4859 * @phba: pointer to lpfc hba data structure. 4860 * 4861 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 4862 * operation. For each SLI4 queue type, the parameters such as queue entry 4863 * count (queue depth) shall be taken from the module parameter. For now, 4864 * we just use some constant number as place holder. 4865 * 4866 * Return codes 4867 * 0 - sucessful 4868 * ENOMEM - No availble memory 4869 * EIO - The mailbox failed to complete successfully. 4870 **/ 4871static int 4872lpfc_sli4_queue_create(struct lpfc_hba *phba) 4873{ 4874 struct lpfc_queue *qdesc; 4875 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 4876 int cfg_fcp_wq_count; 4877 int cfg_fcp_eq_count; 4878 4879 /* 4880 * Sanity check for confiugred queue parameters against the run-time 4881 * device parameters 4882 */ 4883 4884 /* Sanity check on FCP fast-path WQ parameters */ 4885 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 4886 if (cfg_fcp_wq_count > 4887 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 4888 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 4889 LPFC_SP_WQN_DEF; 4890 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 4891 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4892 "2581 Not enough WQs (%d) from " 4893 "the pci function for supporting " 4894 "FCP WQs (%d)\n", 4895 phba->sli4_hba.max_cfg_param.max_wq, 4896 phba->cfg_fcp_wq_count); 4897 goto out_error; 4898 } 4899 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4900 "2582 Not enough WQs (%d) from the pci " 4901 "function for supporting the requested " 4902 "FCP WQs (%d), the actual FCP WQs can " 4903 "be supported: %d\n", 4904 phba->sli4_hba.max_cfg_param.max_wq, 4905 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 4906 } 4907 /* The actual number of FCP work queues adopted */ 4908 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 4909 4910 /* Sanity check on FCP fast-path EQ parameters */ 4911 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 4912 if (cfg_fcp_eq_count > 4913 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 4914 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 4915 LPFC_SP_EQN_DEF; 4916 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 4917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4918 "2574 Not enough EQs (%d) from the " 4919 "pci function for supporting FCP " 4920 "EQs (%d)\n", 4921 phba->sli4_hba.max_cfg_param.max_eq, 4922 phba->cfg_fcp_eq_count); 4923 goto out_error; 4924 } 4925 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4926 "2575 Not enough EQs (%d) from the pci " 4927 "function for supporting the requested " 4928 "FCP EQs (%d), the actual FCP EQs can " 4929 "be supported: %d\n", 4930 phba->sli4_hba.max_cfg_param.max_eq, 4931 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 4932 } 4933 /* It does not make sense to have more EQs than WQs */ 4934 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 4935 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4936 "2593 The number of FCP EQs (%d) is more " 4937 "than the number of FCP WQs (%d), take " 4938 "the number of FCP EQs same as than of " 4939 "WQs (%d)\n", cfg_fcp_eq_count, 4940 phba->cfg_fcp_wq_count, 4941 phba->cfg_fcp_wq_count); 4942 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 4943 } 4944 /* The actual number of FCP event queues adopted */ 4945 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 4946 /* The overall number of event queues used */ 4947 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 4948 4949 /* 4950 * Create Event Queues (EQs) 4951 */ 4952 4953 /* Get EQ depth from module parameter, fake the default for now */ 4954 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 4955 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 4956 4957 /* Create slow path event queue */ 4958 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 4959 phba->sli4_hba.eq_ecount); 4960 if (!qdesc) { 4961 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4962 "0496 Failed allocate slow-path EQ\n"); 4963 goto out_error; 4964 } 4965 phba->sli4_hba.sp_eq = qdesc; 4966 4967 /* Create fast-path FCP Event Queue(s) */ 4968 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 4969 phba->cfg_fcp_eq_count), GFP_KERNEL); 4970 if (!phba->sli4_hba.fp_eq) { 4971 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4972 "2576 Failed allocate memory for fast-path " 4973 "EQ record array\n"); 4974 goto out_free_sp_eq; 4975 } 4976 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 4977 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 4978 phba->sli4_hba.eq_ecount); 4979 if (!qdesc) { 4980 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4981 "0497 Failed allocate fast-path EQ\n"); 4982 goto out_free_fp_eq; 4983 } 4984 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 4985 } 4986 4987 /* 4988 * Create Complete Queues (CQs) 4989 */ 4990 4991 /* Get CQ depth from module parameter, fake the default for now */ 4992 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 4993 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 4994 4995 /* Create slow-path Mailbox Command Complete Queue */ 4996 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 4997 phba->sli4_hba.cq_ecount); 4998 if (!qdesc) { 4999 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5000 "0500 Failed allocate slow-path mailbox CQ\n"); 5001 goto out_free_fp_eq; 5002 } 5003 phba->sli4_hba.mbx_cq = qdesc; 5004 5005 /* Create slow-path ELS Complete Queue */ 5006 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5007 phba->sli4_hba.cq_ecount); 5008 if (!qdesc) { 5009 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5010 "0501 Failed allocate slow-path ELS CQ\n"); 5011 goto out_free_mbx_cq; 5012 } 5013 phba->sli4_hba.els_cq = qdesc; 5014 5015 /* Create slow-path Unsolicited Receive Complete Queue */ 5016 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5017 phba->sli4_hba.cq_ecount); 5018 if (!qdesc) { 5019 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5020 "0502 Failed allocate slow-path USOL RX CQ\n"); 5021 goto out_free_els_cq; 5022 } 5023 phba->sli4_hba.rxq_cq = qdesc; 5024 5025 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ 5026 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 5027 phba->cfg_fcp_eq_count), GFP_KERNEL); 5028 if (!phba->sli4_hba.fcp_cq) { 5029 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5030 "2577 Failed allocate memory for fast-path " 5031 "CQ record array\n"); 5032 goto out_free_rxq_cq; 5033 } 5034 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5035 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5036 phba->sli4_hba.cq_ecount); 5037 if (!qdesc) { 5038 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5039 "0499 Failed allocate fast-path FCP " 5040 "CQ (%d)\n", fcp_cqidx); 5041 goto out_free_fcp_cq; 5042 } 5043 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 5044 } 5045 5046 /* Create Mailbox Command Queue */ 5047 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 5048 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 5049 5050 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 5051 phba->sli4_hba.mq_ecount); 5052 if (!qdesc) { 5053 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5054 "0505 Failed allocate slow-path MQ\n"); 5055 goto out_free_fcp_cq; 5056 } 5057 phba->sli4_hba.mbx_wq = qdesc; 5058 5059 /* 5060 * Create all the Work Queues (WQs) 5061 */ 5062 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 5063 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 5064 5065 /* Create slow-path ELS Work Queue */ 5066 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5067 phba->sli4_hba.wq_ecount); 5068 if (!qdesc) { 5069 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5070 "0504 Failed allocate slow-path ELS WQ\n"); 5071 goto out_free_mbx_wq; 5072 } 5073 phba->sli4_hba.els_wq = qdesc; 5074 5075 /* Create fast-path FCP Work Queue(s) */ 5076 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 5077 phba->cfg_fcp_wq_count), GFP_KERNEL); 5078 if (!phba->sli4_hba.fcp_wq) { 5079 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5080 "2578 Failed allocate memory for fast-path " 5081 "WQ record array\n"); 5082 goto out_free_els_wq; 5083 } 5084 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5085 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5086 phba->sli4_hba.wq_ecount); 5087 if (!qdesc) { 5088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5089 "0503 Failed allocate fast-path FCP " 5090 "WQ (%d)\n", fcp_wqidx); 5091 goto out_free_fcp_wq; 5092 } 5093 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 5094 } 5095 5096 /* 5097 * Create Receive Queue (RQ) 5098 */ 5099 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 5100 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 5101 5102 /* Create Receive Queue for header */ 5103 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5104 phba->sli4_hba.rq_ecount); 5105 if (!qdesc) { 5106 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5107 "0506 Failed allocate receive HRQ\n"); 5108 goto out_free_fcp_wq; 5109 } 5110 phba->sli4_hba.hdr_rq = qdesc; 5111 5112 /* Create Receive Queue for data */ 5113 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5114 phba->sli4_hba.rq_ecount); 5115 if (!qdesc) { 5116 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5117 "0507 Failed allocate receive DRQ\n"); 5118 goto out_free_hdr_rq; 5119 } 5120 phba->sli4_hba.dat_rq = qdesc; 5121 5122 return 0; 5123 5124out_free_hdr_rq: 5125 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5126 phba->sli4_hba.hdr_rq = NULL; 5127out_free_fcp_wq: 5128 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 5129 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 5130 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 5131 } 5132 kfree(phba->sli4_hba.fcp_wq); 5133out_free_els_wq: 5134 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5135 phba->sli4_hba.els_wq = NULL; 5136out_free_mbx_wq: 5137 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5138 phba->sli4_hba.mbx_wq = NULL; 5139out_free_fcp_cq: 5140 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 5141 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 5142 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 5143 } 5144 kfree(phba->sli4_hba.fcp_cq); 5145out_free_rxq_cq: 5146 lpfc_sli4_queue_free(phba->sli4_hba.rxq_cq); 5147 phba->sli4_hba.rxq_cq = NULL; 5148out_free_els_cq: 5149 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5150 phba->sli4_hba.els_cq = NULL; 5151out_free_mbx_cq: 5152 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5153 phba->sli4_hba.mbx_cq = NULL; 5154out_free_fp_eq: 5155 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 5156 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 5157 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 5158 } 5159 kfree(phba->sli4_hba.fp_eq); 5160out_free_sp_eq: 5161 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5162 phba->sli4_hba.sp_eq = NULL; 5163out_error: 5164 return -ENOMEM; 5165} 5166 5167/** 5168 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 5169 * @phba: pointer to lpfc hba data structure. 5170 * 5171 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 5172 * operation. 5173 * 5174 * Return codes 5175 * 0 - sucessful 5176 * ENOMEM - No availble memory 5177 * EIO - The mailbox failed to complete successfully. 5178 **/ 5179static void 5180lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 5181{ 5182 int fcp_qidx; 5183 5184 /* Release mailbox command work queue */ 5185 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5186 phba->sli4_hba.mbx_wq = NULL; 5187 5188 /* Release ELS work queue */ 5189 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5190 phba->sli4_hba.els_wq = NULL; 5191 5192 /* Release FCP work queue */ 5193 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5194 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 5195 kfree(phba->sli4_hba.fcp_wq); 5196 phba->sli4_hba.fcp_wq = NULL; 5197 5198 /* Release unsolicited receive queue */ 5199 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5200 phba->sli4_hba.hdr_rq = NULL; 5201 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 5202 phba->sli4_hba.dat_rq = NULL; 5203 5204 /* Release unsolicited receive complete queue */ 5205 lpfc_sli4_queue_free(phba->sli4_hba.rxq_cq); 5206 phba->sli4_hba.rxq_cq = NULL; 5207 5208 /* Release ELS complete queue */ 5209 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5210 phba->sli4_hba.els_cq = NULL; 5211 5212 /* Release mailbox command complete queue */ 5213 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5214 phba->sli4_hba.mbx_cq = NULL; 5215 5216 /* Release FCP response complete queue */ 5217 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5218 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 5219 kfree(phba->sli4_hba.fcp_cq); 5220 phba->sli4_hba.fcp_cq = NULL; 5221 5222 /* Release fast-path event queue */ 5223 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5224 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 5225 kfree(phba->sli4_hba.fp_eq); 5226 phba->sli4_hba.fp_eq = NULL; 5227 5228 /* Release slow-path event queue */ 5229 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5230 phba->sli4_hba.sp_eq = NULL; 5231 5232 return; 5233} 5234 5235/** 5236 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 5237 * @phba: pointer to lpfc hba data structure. 5238 * 5239 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 5240 * operation. 5241 * 5242 * Return codes 5243 * 0 - sucessful 5244 * ENOMEM - No availble memory 5245 * EIO - The mailbox failed to complete successfully. 5246 **/ 5247int 5248lpfc_sli4_queue_setup(struct lpfc_hba *phba) 5249{ 5250 int rc = -ENOMEM; 5251 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5252 int fcp_cq_index = 0; 5253 5254 /* 5255 * Set up Event Queues (EQs) 5256 */ 5257 5258 /* Set up slow-path event queue */ 5259 if (!phba->sli4_hba.sp_eq) { 5260 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5261 "0520 Slow-path EQ not allocated\n"); 5262 goto out_error; 5263 } 5264 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 5265 LPFC_SP_DEF_IMAX); 5266 if (rc) { 5267 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5268 "0521 Failed setup of slow-path EQ: " 5269 "rc = 0x%x\n", rc); 5270 goto out_error; 5271 } 5272 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5273 "2583 Slow-path EQ setup: queue-id=%d\n", 5274 phba->sli4_hba.sp_eq->queue_id); 5275 5276 /* Set up fast-path event queue */ 5277 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5278 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 5279 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5280 "0522 Fast-path EQ (%d) not " 5281 "allocated\n", fcp_eqidx); 5282 goto out_destroy_fp_eq; 5283 } 5284 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 5285 phba->cfg_fcp_imax); 5286 if (rc) { 5287 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5288 "0523 Failed setup of fast-path EQ " 5289 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 5290 goto out_destroy_fp_eq; 5291 } 5292 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5293 "2584 Fast-path EQ setup: " 5294 "queue[%d]-id=%d\n", fcp_eqidx, 5295 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 5296 } 5297 5298 /* 5299 * Set up Complete Queues (CQs) 5300 */ 5301 5302 /* Set up slow-path MBOX Complete Queue as the first CQ */ 5303 if (!phba->sli4_hba.mbx_cq) { 5304 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5305 "0528 Mailbox CQ not allocated\n"); 5306 goto out_destroy_fp_eq; 5307 } 5308 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 5309 LPFC_MCQ, LPFC_MBOX); 5310 if (rc) { 5311 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5312 "0529 Failed setup of slow-path mailbox CQ: " 5313 "rc = 0x%x\n", rc); 5314 goto out_destroy_fp_eq; 5315 } 5316 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5317 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 5318 phba->sli4_hba.mbx_cq->queue_id, 5319 phba->sli4_hba.sp_eq->queue_id); 5320 5321 /* Set up slow-path ELS Complete Queue */ 5322 if (!phba->sli4_hba.els_cq) { 5323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5324 "0530 ELS CQ not allocated\n"); 5325 goto out_destroy_mbx_cq; 5326 } 5327 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 5328 LPFC_WCQ, LPFC_ELS); 5329 if (rc) { 5330 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5331 "0531 Failed setup of slow-path ELS CQ: " 5332 "rc = 0x%x\n", rc); 5333 goto out_destroy_mbx_cq; 5334 } 5335 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5336 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 5337 phba->sli4_hba.els_cq->queue_id, 5338 phba->sli4_hba.sp_eq->queue_id); 5339 5340 /* Set up slow-path Unsolicited Receive Complete Queue */ 5341 if (!phba->sli4_hba.rxq_cq) { 5342 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5343 "0532 USOL RX CQ not allocated\n"); 5344 goto out_destroy_els_cq; 5345 } 5346 rc = lpfc_cq_create(phba, phba->sli4_hba.rxq_cq, phba->sli4_hba.sp_eq, 5347 LPFC_RCQ, LPFC_USOL); 5348 if (rc) { 5349 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5350 "0533 Failed setup of slow-path USOL RX CQ: " 5351 "rc = 0x%x\n", rc); 5352 goto out_destroy_els_cq; 5353 } 5354 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5355 "2587 USL CQ setup: cq-id=%d, parent eq-id=%d\n", 5356 phba->sli4_hba.rxq_cq->queue_id, 5357 phba->sli4_hba.sp_eq->queue_id); 5358 5359 /* Set up fast-path FCP Response Complete Queue */ 5360 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5361 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 5362 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5363 "0526 Fast-path FCP CQ (%d) not " 5364 "allocated\n", fcp_cqidx); 5365 goto out_destroy_fcp_cq; 5366 } 5367 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 5368 phba->sli4_hba.fp_eq[fcp_cqidx], 5369 LPFC_WCQ, LPFC_FCP); 5370 if (rc) { 5371 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5372 "0527 Failed setup of fast-path FCP " 5373 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 5374 goto out_destroy_fcp_cq; 5375 } 5376 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5377 "2588 FCP CQ setup: cq[%d]-id=%d, " 5378 "parent eq[%d]-id=%d\n", 5379 fcp_cqidx, 5380 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 5381 fcp_cqidx, 5382 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id); 5383 } 5384 5385 /* 5386 * Set up all the Work Queues (WQs) 5387 */ 5388 5389 /* Set up Mailbox Command Queue */ 5390 if (!phba->sli4_hba.mbx_wq) { 5391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5392 "0538 Slow-path MQ not allocated\n"); 5393 goto out_destroy_fcp_cq; 5394 } 5395 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 5396 phba->sli4_hba.mbx_cq, LPFC_MBOX); 5397 if (rc) { 5398 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5399 "0539 Failed setup of slow-path MQ: " 5400 "rc = 0x%x\n", rc); 5401 goto out_destroy_fcp_cq; 5402 } 5403 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5404 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 5405 phba->sli4_hba.mbx_wq->queue_id, 5406 phba->sli4_hba.mbx_cq->queue_id); 5407 5408 /* Set up slow-path ELS Work Queue */ 5409 if (!phba->sli4_hba.els_wq) { 5410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5411 "0536 Slow-path ELS WQ not allocated\n"); 5412 goto out_destroy_mbx_wq; 5413 } 5414 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 5415 phba->sli4_hba.els_cq, LPFC_ELS); 5416 if (rc) { 5417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5418 "0537 Failed setup of slow-path ELS WQ: " 5419 "rc = 0x%x\n", rc); 5420 goto out_destroy_mbx_wq; 5421 } 5422 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5423 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 5424 phba->sli4_hba.els_wq->queue_id, 5425 phba->sli4_hba.els_cq->queue_id); 5426 5427 /* Set up fast-path FCP Work Queue */ 5428 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5429 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 5430 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5431 "0534 Fast-path FCP WQ (%d) not " 5432 "allocated\n", fcp_wqidx); 5433 goto out_destroy_fcp_wq; 5434 } 5435 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 5436 phba->sli4_hba.fcp_cq[fcp_cq_index], 5437 LPFC_FCP); 5438 if (rc) { 5439 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5440 "0535 Failed setup of fast-path FCP " 5441 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 5442 goto out_destroy_fcp_wq; 5443 } 5444 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5445 "2591 FCP WQ setup: wq[%d]-id=%d, " 5446 "parent cq[%d]-id=%d\n", 5447 fcp_wqidx, 5448 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 5449 fcp_cq_index, 5450 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 5451 /* Round robin FCP Work Queue's Completion Queue assignment */ 5452 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count); 5453 } 5454 5455 /* 5456 * Create Receive Queue (RQ) 5457 */ 5458 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 5459 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5460 "0540 Receive Queue not allocated\n"); 5461 goto out_destroy_fcp_wq; 5462 } 5463 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 5464 phba->sli4_hba.rxq_cq, LPFC_USOL); 5465 if (rc) { 5466 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5467 "0541 Failed setup of Receive Queue: " 5468 "rc = 0x%x\n", rc); 5469 goto out_destroy_fcp_wq; 5470 } 5471 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5472 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 5473 "parent cq-id=%d\n", 5474 phba->sli4_hba.hdr_rq->queue_id, 5475 phba->sli4_hba.dat_rq->queue_id, 5476 phba->sli4_hba.rxq_cq->queue_id); 5477 return 0; 5478 5479out_destroy_fcp_wq: 5480 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 5481 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 5482 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 5483out_destroy_mbx_wq: 5484 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 5485out_destroy_fcp_cq: 5486 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 5487 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 5488 lpfc_cq_destroy(phba, phba->sli4_hba.rxq_cq); 5489out_destroy_els_cq: 5490 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 5491out_destroy_mbx_cq: 5492 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 5493out_destroy_fp_eq: 5494 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 5495 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 5496 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 5497out_error: 5498 return rc; 5499} 5500 5501/** 5502 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 5503 * @phba: pointer to lpfc hba data structure. 5504 * 5505 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 5506 * operation. 5507 * 5508 * Return codes 5509 * 0 - sucessful 5510 * ENOMEM - No availble memory 5511 * EIO - The mailbox failed to complete successfully. 5512 **/ 5513void 5514lpfc_sli4_queue_unset(struct lpfc_hba *phba) 5515{ 5516 int fcp_qidx; 5517 5518 /* Unset mailbox command work queue */ 5519 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 5520 /* Unset ELS work queue */ 5521 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 5522 /* Unset unsolicited receive queue */ 5523 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 5524 /* Unset FCP work queue */ 5525 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5526 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 5527 /* Unset mailbox command complete queue */ 5528 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 5529 /* Unset ELS complete queue */ 5530 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 5531 /* Unset unsolicited receive complete queue */ 5532 lpfc_cq_destroy(phba, phba->sli4_hba.rxq_cq); 5533 /* Unset FCP response complete queue */ 5534 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5535 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 5536 /* Unset fast-path event queue */ 5537 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5538 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 5539 /* Unset slow-path event queue */ 5540 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 5541} 5542 5543/** 5544 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 5545 * @phba: pointer to lpfc hba data structure. 5546 * 5547 * This routine is invoked to allocate and set up a pool of completion queue 5548 * events. The body of the completion queue event is a completion queue entry 5549 * CQE. For now, this pool is used for the interrupt service routine to queue 5550 * the following HBA completion queue events for the worker thread to process: 5551 * - Mailbox asynchronous events 5552 * - Receive queue completion unsolicited events 5553 * Later, this can be used for all the slow-path events. 5554 * 5555 * Return codes 5556 * 0 - sucessful 5557 * -ENOMEM - No availble memory 5558 **/ 5559static int 5560lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 5561{ 5562 struct lpfc_cq_event *cq_event; 5563 int i; 5564 5565 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 5566 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 5567 if (!cq_event) 5568 goto out_pool_create_fail; 5569 list_add_tail(&cq_event->list, 5570 &phba->sli4_hba.sp_cqe_event_pool); 5571 } 5572 return 0; 5573 5574out_pool_create_fail: 5575 lpfc_sli4_cq_event_pool_destroy(phba); 5576 return -ENOMEM; 5577} 5578 5579/** 5580 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 5581 * @phba: pointer to lpfc hba data structure. 5582 * 5583 * This routine is invoked to free the pool of completion queue events at 5584 * driver unload time. Note that, it is the responsibility of the driver 5585 * cleanup routine to free all the outstanding completion-queue events 5586 * allocated from this pool back into the pool before invoking this routine 5587 * to destroy the pool. 5588 **/ 5589static void 5590lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 5591{ 5592 struct lpfc_cq_event *cq_event, *next_cq_event; 5593 5594 list_for_each_entry_safe(cq_event, next_cq_event, 5595 &phba->sli4_hba.sp_cqe_event_pool, list) { 5596 list_del(&cq_event->list); 5597 kfree(cq_event); 5598 } 5599} 5600 5601/** 5602 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 5603 * @phba: pointer to lpfc hba data structure. 5604 * 5605 * This routine is the lock free version of the API invoked to allocate a 5606 * completion-queue event from the free pool. 5607 * 5608 * Return: Pointer to the newly allocated completion-queue event if successful 5609 * NULL otherwise. 5610 **/ 5611struct lpfc_cq_event * 5612__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 5613{ 5614 struct lpfc_cq_event *cq_event = NULL; 5615 5616 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 5617 struct lpfc_cq_event, list); 5618 return cq_event; 5619} 5620 5621/** 5622 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 5623 * @phba: pointer to lpfc hba data structure. 5624 * 5625 * This routine is the lock version of the API invoked to allocate a 5626 * completion-queue event from the free pool. 5627 * 5628 * Return: Pointer to the newly allocated completion-queue event if successful 5629 * NULL otherwise. 5630 **/ 5631struct lpfc_cq_event * 5632lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 5633{ 5634 struct lpfc_cq_event *cq_event; 5635 unsigned long iflags; 5636 5637 spin_lock_irqsave(&phba->hbalock, iflags); 5638 cq_event = __lpfc_sli4_cq_event_alloc(phba); 5639 spin_unlock_irqrestore(&phba->hbalock, iflags); 5640 return cq_event; 5641} 5642 5643/** 5644 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 5645 * @phba: pointer to lpfc hba data structure. 5646 * @cq_event: pointer to the completion queue event to be freed. 5647 * 5648 * This routine is the lock free version of the API invoked to release a 5649 * completion-queue event back into the free pool. 5650 **/ 5651void 5652__lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 5653 struct lpfc_cq_event *cq_event) 5654{ 5655 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 5656} 5657 5658/** 5659 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 5660 * @phba: pointer to lpfc hba data structure. 5661 * @cq_event: pointer to the completion queue event to be freed. 5662 * 5663 * This routine is the lock version of the API invoked to release a 5664 * completion-queue event back into the free pool. 5665 **/ 5666void 5667lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 5668 struct lpfc_cq_event *cq_event) 5669{ 5670 unsigned long iflags; 5671 spin_lock_irqsave(&phba->hbalock, iflags); 5672 __lpfc_sli4_cq_event_release(phba, cq_event); 5673 spin_unlock_irqrestore(&phba->hbalock, iflags); 5674} 5675 5676/** 5677 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 5678 * @phba: pointer to lpfc hba data structure. 5679 * 5680 * This routine is to free all the pending completion-queue events to the 5681 * back into the free pool for device reset. 5682 **/ 5683static void 5684lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 5685{ 5686 LIST_HEAD(cqelist); 5687 struct lpfc_cq_event *cqe; 5688 unsigned long iflags; 5689 5690 /* Retrieve all the pending WCQEs from pending WCQE lists */ 5691 spin_lock_irqsave(&phba->hbalock, iflags); 5692 /* Pending FCP XRI abort events */ 5693 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 5694 &cqelist); 5695 /* Pending ELS XRI abort events */ 5696 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 5697 &cqelist); 5698 /* Pending asynnc events */ 5699 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 5700 &cqelist); 5701 spin_unlock_irqrestore(&phba->hbalock, iflags); 5702 5703 while (!list_empty(&cqelist)) { 5704 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 5705 lpfc_sli4_cq_event_release(phba, cqe); 5706 } 5707} 5708 5709/** 5710 * lpfc_pci_function_reset - Reset pci function. 5711 * @phba: pointer to lpfc hba data structure. 5712 * 5713 * This routine is invoked to request a PCI function reset. It will destroys 5714 * all resources assigned to the PCI function which originates this request. 5715 * 5716 * Return codes 5717 * 0 - sucessful 5718 * ENOMEM - No availble memory 5719 * EIO - The mailbox failed to complete successfully. 5720 **/ 5721int 5722lpfc_pci_function_reset(struct lpfc_hba *phba) 5723{ 5724 LPFC_MBOXQ_t *mboxq; 5725 uint32_t rc = 0; 5726 uint32_t shdr_status, shdr_add_status; 5727 union lpfc_sli4_cfg_shdr *shdr; 5728 5729 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5730 if (!mboxq) { 5731 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5732 "0494 Unable to allocate memory for issuing " 5733 "SLI_FUNCTION_RESET mailbox command\n"); 5734 return -ENOMEM; 5735 } 5736 5737 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */ 5738 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 5739 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 5740 LPFC_SLI4_MBX_EMBED); 5741 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5742 shdr = (union lpfc_sli4_cfg_shdr *) 5743 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 5744 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 5745 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 5746 if (rc != MBX_TIMEOUT) 5747 mempool_free(mboxq, phba->mbox_mem_pool); 5748 if (shdr_status || shdr_add_status || rc) { 5749 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5750 "0495 SLI_FUNCTION_RESET mailbox failed with " 5751 "status x%x add_status x%x, mbx status x%x\n", 5752 shdr_status, shdr_add_status, rc); 5753 rc = -ENXIO; 5754 } 5755 return rc; 5756} 5757 5758/** 5759 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 5760 * @phba: pointer to lpfc hba data structure. 5761 * @cnt: number of nop mailbox commands to send. 5762 * 5763 * This routine is invoked to send a number @cnt of NOP mailbox command and 5764 * wait for each command to complete. 5765 * 5766 * Return: the number of NOP mailbox command completed. 5767 **/ 5768static int 5769lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 5770{ 5771 LPFC_MBOXQ_t *mboxq; 5772 int length, cmdsent; 5773 uint32_t mbox_tmo; 5774 uint32_t rc = 0; 5775 uint32_t shdr_status, shdr_add_status; 5776 union lpfc_sli4_cfg_shdr *shdr; 5777 5778 if (cnt == 0) { 5779 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5780 "2518 Requested to send 0 NOP mailbox cmd\n"); 5781 return cnt; 5782 } 5783 5784 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5785 if (!mboxq) { 5786 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5787 "2519 Unable to allocate memory for issuing " 5788 "NOP mailbox command\n"); 5789 return 0; 5790 } 5791 5792 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 5793 length = (sizeof(struct lpfc_mbx_nop) - 5794 sizeof(struct lpfc_sli4_cfg_mhdr)); 5795 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 5796 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 5797 5798 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 5799 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 5800 if (!phba->sli4_hba.intr_enable) 5801 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5802 else 5803 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 5804 if (rc == MBX_TIMEOUT) 5805 break; 5806 /* Check return status */ 5807 shdr = (union lpfc_sli4_cfg_shdr *) 5808 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 5809 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 5810 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 5811 &shdr->response); 5812 if (shdr_status || shdr_add_status || rc) { 5813 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5814 "2520 NOP mailbox command failed " 5815 "status x%x add_status x%x mbx " 5816 "status x%x\n", shdr_status, 5817 shdr_add_status, rc); 5818 break; 5819 } 5820 } 5821 5822 if (rc != MBX_TIMEOUT) 5823 mempool_free(mboxq, phba->mbox_mem_pool); 5824 5825 return cmdsent; 5826} 5827 5828/** 5829 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device 5830 * @phba: pointer to lpfc hba data structure. 5831 * @fcfi: fcf index. 5832 * 5833 * This routine is invoked to unregister a FCFI from device. 5834 **/ 5835void 5836lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi) 5837{ 5838 LPFC_MBOXQ_t *mbox; 5839 uint32_t mbox_tmo; 5840 int rc; 5841 unsigned long flags; 5842 5843 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5844 5845 if (!mbox) 5846 return; 5847 5848 lpfc_unreg_fcfi(mbox, fcfi); 5849 5850 if (!phba->sli4_hba.intr_enable) 5851 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 5852 else { 5853 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 5854 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); 5855 } 5856 if (rc != MBX_TIMEOUT) 5857 mempool_free(mbox, phba->mbox_mem_pool); 5858 if (rc != MBX_SUCCESS) 5859 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5860 "2517 Unregister FCFI command failed " 5861 "status %d, mbxStatus x%x\n", rc, 5862 bf_get(lpfc_mqe_status, &mbox->u.mqe)); 5863 else { 5864 spin_lock_irqsave(&phba->hbalock, flags); 5865 /* Mark the FCFI is no longer registered */ 5866 phba->fcf.fcf_flag &= 5867 ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_DISCOVERED); 5868 spin_unlock_irqrestore(&phba->hbalock, flags); 5869 } 5870} 5871 5872/** 5873 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 5874 * @phba: pointer to lpfc hba data structure. 5875 * 5876 * This routine is invoked to set up the PCI device memory space for device 5877 * with SLI-4 interface spec. 5878 * 5879 * Return codes 5880 * 0 - sucessful 5881 * other values - error 5882 **/ 5883static int 5884lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 5885{ 5886 struct pci_dev *pdev; 5887 unsigned long bar0map_len, bar1map_len, bar2map_len; 5888 int error = -ENODEV; 5889 5890 /* Obtain PCI device reference */ 5891 if (!phba->pcidev) 5892 return error; 5893 else 5894 pdev = phba->pcidev; 5895 5896 /* Set the device DMA mask size */ 5897 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) 5898 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) 5899 return error; 5900 5901 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the 5902 * number of bytes required by each mapping. They are actually 5903 * mapping to the PCI BAR regions 1, 2, and 4 by the SLI4 device. 5904 */ 5905 phba->pci_bar0_map = pci_resource_start(pdev, LPFC_SLI4_BAR0); 5906 bar0map_len = pci_resource_len(pdev, LPFC_SLI4_BAR0); 5907 5908 phba->pci_bar1_map = pci_resource_start(pdev, LPFC_SLI4_BAR1); 5909 bar1map_len = pci_resource_len(pdev, LPFC_SLI4_BAR1); 5910 5911 phba->pci_bar2_map = pci_resource_start(pdev, LPFC_SLI4_BAR2); 5912 bar2map_len = pci_resource_len(pdev, LPFC_SLI4_BAR2); 5913 5914 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */ 5915 phba->sli4_hba.conf_regs_memmap_p = 5916 ioremap(phba->pci_bar0_map, bar0map_len); 5917 if (!phba->sli4_hba.conf_regs_memmap_p) { 5918 dev_printk(KERN_ERR, &pdev->dev, 5919 "ioremap failed for SLI4 PCI config registers.\n"); 5920 goto out; 5921 } 5922 5923 /* Map SLI4 HBA Control Register base to a kernel virtual address. */ 5924 phba->sli4_hba.ctrl_regs_memmap_p = 5925 ioremap(phba->pci_bar1_map, bar1map_len); 5926 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 5927 dev_printk(KERN_ERR, &pdev->dev, 5928 "ioremap failed for SLI4 HBA control registers.\n"); 5929 goto out_iounmap_conf; 5930 } 5931 5932 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */ 5933 phba->sli4_hba.drbl_regs_memmap_p = 5934 ioremap(phba->pci_bar2_map, bar2map_len); 5935 if (!phba->sli4_hba.drbl_regs_memmap_p) { 5936 dev_printk(KERN_ERR, &pdev->dev, 5937 "ioremap failed for SLI4 HBA doorbell registers.\n"); 5938 goto out_iounmap_ctrl; 5939 } 5940 5941 /* Set up BAR0 PCI config space register memory map */ 5942 lpfc_sli4_bar0_register_memmap(phba); 5943 5944 /* Set up BAR1 register memory map */ 5945 lpfc_sli4_bar1_register_memmap(phba); 5946 5947 /* Set up BAR2 register memory map */ 5948 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 5949 if (error) 5950 goto out_iounmap_all; 5951 5952 return 0; 5953 5954out_iounmap_all: 5955 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 5956out_iounmap_ctrl: 5957 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 5958out_iounmap_conf: 5959 iounmap(phba->sli4_hba.conf_regs_memmap_p); 5960out: 5961 return error; 5962} 5963 5964/** 5965 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 5966 * @phba: pointer to lpfc hba data structure. 5967 * 5968 * This routine is invoked to unset the PCI device memory space for device 5969 * with SLI-4 interface spec. 5970 **/ 5971static void 5972lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 5973{ 5974 struct pci_dev *pdev; 5975 5976 /* Obtain PCI device reference */ 5977 if (!phba->pcidev) 5978 return; 5979 else 5980 pdev = phba->pcidev; 5981 5982 /* Free coherent DMA memory allocated */ 5983 5984 /* Unmap I/O memory space */ 5985 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 5986 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 5987 iounmap(phba->sli4_hba.conf_regs_memmap_p); 5988 5989 return; 5990} 5991 5992/** 5993 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 5994 * @phba: pointer to lpfc hba data structure. 5995 * 5996 * This routine is invoked to enable the MSI-X interrupt vectors to device 5997 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 5998 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 5999 * invoked, enables either all or nothing, depending on the current 6000 * availability of PCI vector resources. The device driver is responsible 6001 * for calling the individual request_irq() to register each MSI-X vector 6002 * with a interrupt handler, which is done in this function. Note that 6003 * later when device is unloading, the driver should always call free_irq() 6004 * on all MSI-X vectors it has done request_irq() on before calling 6005 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 6006 * will be left with MSI-X enabled and leaks its vectors. 6007 * 6008 * Return codes 6009 * 0 - sucessful 6010 * other values - error 6011 **/ 6012static int 6013lpfc_sli_enable_msix(struct lpfc_hba *phba) 6014{ 6015 int rc, i; 6016 LPFC_MBOXQ_t *pmb; 6017 6018 /* Set up MSI-X multi-message vectors */ 6019 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6020 phba->msix_entries[i].entry = i; 6021 6022 /* Configure MSI-X capability structure */ 6023 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 6024 ARRAY_SIZE(phba->msix_entries)); 6025 if (rc) { 6026 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6027 "0420 PCI enable MSI-X failed (%d)\n", rc); 6028 goto msi_fail_out; 6029 } 6030 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6031 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6032 "0477 MSI-X entry[%d]: vector=x%x " 6033 "message=%d\n", i, 6034 phba->msix_entries[i].vector, 6035 phba->msix_entries[i].entry); 6036 /* 6037 * Assign MSI-X vectors to interrupt handlers 6038 */ 6039 6040 /* vector-0 is associated to slow-path handler */ 6041 rc = request_irq(phba->msix_entries[0].vector, 6042 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 6043 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6044 if (rc) { 6045 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6046 "0421 MSI-X slow-path request_irq failed " 6047 "(%d)\n", rc); 6048 goto msi_fail_out; 6049 } 6050 6051 /* vector-1 is associated to fast-path handler */ 6052 rc = request_irq(phba->msix_entries[1].vector, 6053 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 6054 LPFC_FP_DRIVER_HANDLER_NAME, phba); 6055 6056 if (rc) { 6057 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6058 "0429 MSI-X fast-path request_irq failed " 6059 "(%d)\n", rc); 6060 goto irq_fail_out; 6061 } 6062 6063 /* 6064 * Configure HBA MSI-X attention conditions to messages 6065 */ 6066 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6067 6068 if (!pmb) { 6069 rc = -ENOMEM; 6070 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6071 "0474 Unable to allocate memory for issuing " 6072 "MBOX_CONFIG_MSI command\n"); 6073 goto mem_fail_out; 6074 } 6075 rc = lpfc_config_msi(phba, pmb); 6076 if (rc) 6077 goto mbx_fail_out; 6078 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6079 if (rc != MBX_SUCCESS) { 6080 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 6081 "0351 Config MSI mailbox command failed, " 6082 "mbxCmd x%x, mbxStatus x%x\n", 6083 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 6084 goto mbx_fail_out; 6085 } 6086 6087 /* Free memory allocated for mailbox command */ 6088 mempool_free(pmb, phba->mbox_mem_pool); 6089 return rc; 6090 6091mbx_fail_out: 6092 /* Free memory allocated for mailbox command */ 6093 mempool_free(pmb, phba->mbox_mem_pool); 6094 6095mem_fail_out: 6096 /* free the irq already requested */ 6097 free_irq(phba->msix_entries[1].vector, phba); 6098 6099irq_fail_out: 6100 /* free the irq already requested */ 6101 free_irq(phba->msix_entries[0].vector, phba); 6102 6103msi_fail_out: 6104 /* Unconfigure MSI-X capability structure */ 6105 pci_disable_msix(phba->pcidev); 6106 return rc; 6107} 6108 6109/** 6110 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 6111 * @phba: pointer to lpfc hba data structure. 6112 * 6113 * This routine is invoked to release the MSI-X vectors and then disable the 6114 * MSI-X interrupt mode to device with SLI-3 interface spec. 6115 **/ 6116static void 6117lpfc_sli_disable_msix(struct lpfc_hba *phba) 6118{ 6119 int i; 6120 6121 /* Free up MSI-X multi-message vectors */ 6122 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6123 free_irq(phba->msix_entries[i].vector, phba); 6124 /* Disable MSI-X */ 6125 pci_disable_msix(phba->pcidev); 6126 6127 return; 6128} 6129 6130/** 6131 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 6132 * @phba: pointer to lpfc hba data structure. 6133 * 6134 * This routine is invoked to enable the MSI interrupt mode to device with 6135 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 6136 * enable the MSI vector. The device driver is responsible for calling the 6137 * request_irq() to register MSI vector with a interrupt the handler, which 6138 * is done in this function. 6139 * 6140 * Return codes 6141 * 0 - sucessful 6142 * other values - error 6143 */ 6144static int 6145lpfc_sli_enable_msi(struct lpfc_hba *phba) 6146{ 6147 int rc; 6148 6149 rc = pci_enable_msi(phba->pcidev); 6150 if (!rc) 6151 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6152 "0462 PCI enable MSI mode success.\n"); 6153 else { 6154 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6155 "0471 PCI enable MSI mode failed (%d)\n", rc); 6156 return rc; 6157 } 6158 6159 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6160 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6161 if (rc) { 6162 pci_disable_msi(phba->pcidev); 6163 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6164 "0478 MSI request_irq failed (%d)\n", rc); 6165 } 6166 return rc; 6167} 6168 6169/** 6170 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 6171 * @phba: pointer to lpfc hba data structure. 6172 * 6173 * This routine is invoked to disable the MSI interrupt mode to device with 6174 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 6175 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6176 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6177 * its vector. 6178 */ 6179static void 6180lpfc_sli_disable_msi(struct lpfc_hba *phba) 6181{ 6182 free_irq(phba->pcidev->irq, phba); 6183 pci_disable_msi(phba->pcidev); 6184 return; 6185} 6186 6187/** 6188 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 6189 * @phba: pointer to lpfc hba data structure. 6190 * 6191 * This routine is invoked to enable device interrupt and associate driver's 6192 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 6193 * spec. Depends on the interrupt mode configured to the driver, the driver 6194 * will try to fallback from the configured interrupt mode to an interrupt 6195 * mode which is supported by the platform, kernel, and device in the order 6196 * of: 6197 * MSI-X -> MSI -> IRQ. 6198 * 6199 * Return codes 6200 * 0 - sucessful 6201 * other values - error 6202 **/ 6203static uint32_t 6204lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6205{ 6206 uint32_t intr_mode = LPFC_INTR_ERROR; 6207 int retval; 6208 6209 if (cfg_mode == 2) { 6210 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 6211 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 6212 if (!retval) { 6213 /* Now, try to enable MSI-X interrupt mode */ 6214 retval = lpfc_sli_enable_msix(phba); 6215 if (!retval) { 6216 /* Indicate initialization to MSI-X mode */ 6217 phba->intr_type = MSIX; 6218 intr_mode = 2; 6219 } 6220 } 6221 } 6222 6223 /* Fallback to MSI if MSI-X initialization failed */ 6224 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6225 retval = lpfc_sli_enable_msi(phba); 6226 if (!retval) { 6227 /* Indicate initialization to MSI mode */ 6228 phba->intr_type = MSI; 6229 intr_mode = 1; 6230 } 6231 } 6232 6233 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6234 if (phba->intr_type == NONE) { 6235 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6236 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6237 if (!retval) { 6238 /* Indicate initialization to INTx mode */ 6239 phba->intr_type = INTx; 6240 intr_mode = 0; 6241 } 6242 } 6243 return intr_mode; 6244} 6245 6246/** 6247 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 6248 * @phba: pointer to lpfc hba data structure. 6249 * 6250 * This routine is invoked to disable device interrupt and disassociate the 6251 * driver's interrupt handler(s) from interrupt vector(s) to device with 6252 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 6253 * release the interrupt vector(s) for the message signaled interrupt. 6254 **/ 6255static void 6256lpfc_sli_disable_intr(struct lpfc_hba *phba) 6257{ 6258 /* Disable the currently initialized interrupt mode */ 6259 if (phba->intr_type == MSIX) 6260 lpfc_sli_disable_msix(phba); 6261 else if (phba->intr_type == MSI) 6262 lpfc_sli_disable_msi(phba); 6263 else if (phba->intr_type == INTx) 6264 free_irq(phba->pcidev->irq, phba); 6265 6266 /* Reset interrupt management states */ 6267 phba->intr_type = NONE; 6268 phba->sli.slistat.sli_intr = 0; 6269 6270 return; 6271} 6272 6273/** 6274 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 6275 * @phba: pointer to lpfc hba data structure. 6276 * 6277 * This routine is invoked to enable the MSI-X interrupt vectors to device 6278 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 6279 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 6280 * enables either all or nothing, depending on the current availability of 6281 * PCI vector resources. The device driver is responsible for calling the 6282 * individual request_irq() to register each MSI-X vector with a interrupt 6283 * handler, which is done in this function. Note that later when device is 6284 * unloading, the driver should always call free_irq() on all MSI-X vectors 6285 * it has done request_irq() on before calling pci_disable_msix(). Failure 6286 * to do so results in a BUG_ON() and a device will be left with MSI-X 6287 * enabled and leaks its vectors. 6288 * 6289 * Return codes 6290 * 0 - sucessful 6291 * other values - error 6292 **/ 6293static int 6294lpfc_sli4_enable_msix(struct lpfc_hba *phba) 6295{ 6296 int rc, index; 6297 6298 /* Set up MSI-X multi-message vectors */ 6299 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 6300 phba->sli4_hba.msix_entries[index].entry = index; 6301 6302 /* Configure MSI-X capability structure */ 6303 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 6304 phba->sli4_hba.cfg_eqn); 6305 if (rc) { 6306 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6307 "0484 PCI enable MSI-X failed (%d)\n", rc); 6308 goto msi_fail_out; 6309 } 6310 /* Log MSI-X vector assignment */ 6311 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 6312 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6313 "0489 MSI-X entry[%d]: vector=x%x " 6314 "message=%d\n", index, 6315 phba->sli4_hba.msix_entries[index].vector, 6316 phba->sli4_hba.msix_entries[index].entry); 6317 /* 6318 * Assign MSI-X vectors to interrupt handlers 6319 */ 6320 6321 /* The first vector must associated to slow-path handler for MQ */ 6322 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 6323 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 6324 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6325 if (rc) { 6326 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6327 "0485 MSI-X slow-path request_irq failed " 6328 "(%d)\n", rc); 6329 goto msi_fail_out; 6330 } 6331 6332 /* The rest of the vector(s) are associated to fast-path handler(s) */ 6333 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) { 6334 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 6335 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 6336 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 6337 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 6338 LPFC_FP_DRIVER_HANDLER_NAME, 6339 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 6340 if (rc) { 6341 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6342 "0486 MSI-X fast-path (%d) " 6343 "request_irq failed (%d)\n", index, rc); 6344 goto cfg_fail_out; 6345 } 6346 } 6347 6348 return rc; 6349 6350cfg_fail_out: 6351 /* free the irq already requested */ 6352 for (--index; index >= 1; index--) 6353 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 6354 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 6355 6356 /* free the irq already requested */ 6357 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 6358 6359msi_fail_out: 6360 /* Unconfigure MSI-X capability structure */ 6361 pci_disable_msix(phba->pcidev); 6362 return rc; 6363} 6364 6365/** 6366 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 6367 * @phba: pointer to lpfc hba data structure. 6368 * 6369 * This routine is invoked to release the MSI-X vectors and then disable the 6370 * MSI-X interrupt mode to device with SLI-4 interface spec. 6371 **/ 6372static void 6373lpfc_sli4_disable_msix(struct lpfc_hba *phba) 6374{ 6375 int index; 6376 6377 /* Free up MSI-X multi-message vectors */ 6378 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 6379 6380 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) 6381 free_irq(phba->sli4_hba.msix_entries[index].vector, 6382 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 6383 /* Disable MSI-X */ 6384 pci_disable_msix(phba->pcidev); 6385 6386 return; 6387} 6388 6389/** 6390 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 6391 * @phba: pointer to lpfc hba data structure. 6392 * 6393 * This routine is invoked to enable the MSI interrupt mode to device with 6394 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 6395 * to enable the MSI vector. The device driver is responsible for calling 6396 * the request_irq() to register MSI vector with a interrupt the handler, 6397 * which is done in this function. 6398 * 6399 * Return codes 6400 * 0 - sucessful 6401 * other values - error 6402 **/ 6403static int 6404lpfc_sli4_enable_msi(struct lpfc_hba *phba) 6405{ 6406 int rc, index; 6407 6408 rc = pci_enable_msi(phba->pcidev); 6409 if (!rc) 6410 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6411 "0487 PCI enable MSI mode success.\n"); 6412 else { 6413 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6414 "0488 PCI enable MSI mode failed (%d)\n", rc); 6415 return rc; 6416 } 6417 6418 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 6419 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6420 if (rc) { 6421 pci_disable_msi(phba->pcidev); 6422 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6423 "0490 MSI request_irq failed (%d)\n", rc); 6424 } 6425 6426 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 6427 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 6428 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 6429 } 6430 6431 return rc; 6432} 6433 6434/** 6435 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 6436 * @phba: pointer to lpfc hba data structure. 6437 * 6438 * This routine is invoked to disable the MSI interrupt mode to device with 6439 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 6440 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6441 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6442 * its vector. 6443 **/ 6444static void 6445lpfc_sli4_disable_msi(struct lpfc_hba *phba) 6446{ 6447 free_irq(phba->pcidev->irq, phba); 6448 pci_disable_msi(phba->pcidev); 6449 return; 6450} 6451 6452/** 6453 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 6454 * @phba: pointer to lpfc hba data structure. 6455 * 6456 * This routine is invoked to enable device interrupt and associate driver's 6457 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 6458 * interface spec. Depends on the interrupt mode configured to the driver, 6459 * the driver will try to fallback from the configured interrupt mode to an 6460 * interrupt mode which is supported by the platform, kernel, and device in 6461 * the order of: 6462 * MSI-X -> MSI -> IRQ. 6463 * 6464 * Return codes 6465 * 0 - sucessful 6466 * other values - error 6467 **/ 6468static uint32_t 6469lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6470{ 6471 uint32_t intr_mode = LPFC_INTR_ERROR; 6472 int retval, index; 6473 6474 if (cfg_mode == 2) { 6475 /* Preparation before conf_msi mbox cmd */ 6476 retval = 0; 6477 if (!retval) { 6478 /* Now, try to enable MSI-X interrupt mode */ 6479 retval = lpfc_sli4_enable_msix(phba); 6480 if (!retval) { 6481 /* Indicate initialization to MSI-X mode */ 6482 phba->intr_type = MSIX; 6483 intr_mode = 2; 6484 } 6485 } 6486 } 6487 6488 /* Fallback to MSI if MSI-X initialization failed */ 6489 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6490 retval = lpfc_sli4_enable_msi(phba); 6491 if (!retval) { 6492 /* Indicate initialization to MSI mode */ 6493 phba->intr_type = MSI; 6494 intr_mode = 1; 6495 } 6496 } 6497 6498 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6499 if (phba->intr_type == NONE) { 6500 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 6501 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6502 if (!retval) { 6503 /* Indicate initialization to INTx mode */ 6504 phba->intr_type = INTx; 6505 intr_mode = 0; 6506 for (index = 0; index < phba->cfg_fcp_eq_count; 6507 index++) { 6508 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 6509 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 6510 } 6511 } 6512 } 6513 return intr_mode; 6514} 6515 6516/** 6517 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 6518 * @phba: pointer to lpfc hba data structure. 6519 * 6520 * This routine is invoked to disable device interrupt and disassociate 6521 * the driver's interrupt handler(s) from interrupt vector(s) to device 6522 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 6523 * will release the interrupt vector(s) for the message signaled interrupt. 6524 **/ 6525static void 6526lpfc_sli4_disable_intr(struct lpfc_hba *phba) 6527{ 6528 /* Disable the currently initialized interrupt mode */ 6529 if (phba->intr_type == MSIX) 6530 lpfc_sli4_disable_msix(phba); 6531 else if (phba->intr_type == MSI) 6532 lpfc_sli4_disable_msi(phba); 6533 else if (phba->intr_type == INTx) 6534 free_irq(phba->pcidev->irq, phba); 6535 6536 /* Reset interrupt management states */ 6537 phba->intr_type = NONE; 6538 phba->sli.slistat.sli_intr = 0; 6539 6540 return; 6541} 6542 6543/** 6544 * lpfc_unset_hba - Unset SLI3 hba device initialization 6545 * @phba: pointer to lpfc hba data structure. 6546 * 6547 * This routine is invoked to unset the HBA device initialization steps to 6548 * a device with SLI-3 interface spec. 6549 **/ 6550static void 6551lpfc_unset_hba(struct lpfc_hba *phba) 6552{ 6553 struct lpfc_vport *vport = phba->pport; 6554 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6555 6556 spin_lock_irq(shost->host_lock); 6557 vport->load_flag |= FC_UNLOADING; 6558 spin_unlock_irq(shost->host_lock); 6559 6560 lpfc_stop_hba_timers(phba); 6561 6562 phba->pport->work_port_events = 0; 6563 6564 lpfc_sli_hba_down(phba); 6565 6566 lpfc_sli_brdrestart(phba); 6567 6568 lpfc_sli_disable_intr(phba); 6569 6570 return; 6571} 6572 6573/** 6574 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 6575 * @phba: pointer to lpfc hba data structure. 6576 * 6577 * This routine is invoked to unset the HBA device initialization steps to 6578 * a device with SLI-4 interface spec. 6579 **/ 6580static void 6581lpfc_sli4_unset_hba(struct lpfc_hba *phba) 6582{ 6583 struct lpfc_vport *vport = phba->pport; 6584 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6585 6586 spin_lock_irq(shost->host_lock); 6587 vport->load_flag |= FC_UNLOADING; 6588 spin_unlock_irq(shost->host_lock); 6589 6590 phba->pport->work_port_events = 0; 6591 6592 lpfc_sli4_hba_down(phba); 6593 6594 lpfc_sli4_disable_intr(phba); 6595 6596 return; 6597} 6598 6599/** 6600 * lpfc_sli4_hba_unset - Unset the fcoe hba 6601 * @phba: Pointer to HBA context object. 6602 * 6603 * This function is called in the SLI4 code path to reset the HBA's FCoE 6604 * function. The caller is not required to hold any lock. This routine 6605 * issues PCI function reset mailbox command to reset the FCoE function. 6606 * At the end of the function, it calls lpfc_hba_down_post function to 6607 * free any pending commands. 6608 **/ 6609static void 6610lpfc_sli4_hba_unset(struct lpfc_hba *phba) 6611{ 6612 int wait_cnt = 0; 6613 LPFC_MBOXQ_t *mboxq; 6614 6615 lpfc_stop_hba_timers(phba); 6616 phba->sli4_hba.intr_enable = 0; 6617 6618 /* 6619 * Gracefully wait out the potential current outstanding asynchronous 6620 * mailbox command. 6621 */ 6622 6623 /* First, block any pending async mailbox command from posted */ 6624 spin_lock_irq(&phba->hbalock); 6625 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 6626 spin_unlock_irq(&phba->hbalock); 6627 /* Now, trying to wait it out if we can */ 6628 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 6629 msleep(10); 6630 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 6631 break; 6632 } 6633 /* Forcefully release the outstanding mailbox command if timed out */ 6634 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 6635 spin_lock_irq(&phba->hbalock); 6636 mboxq = phba->sli.mbox_active; 6637 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 6638 __lpfc_mbox_cmpl_put(phba, mboxq); 6639 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 6640 phba->sli.mbox_active = NULL; 6641 spin_unlock_irq(&phba->hbalock); 6642 } 6643 6644 /* Tear down the queues in the HBA */ 6645 lpfc_sli4_queue_unset(phba); 6646 6647 /* Disable PCI subsystem interrupt */ 6648 lpfc_sli4_disable_intr(phba); 6649 6650 /* Stop kthread signal shall trigger work_done one more time */ 6651 kthread_stop(phba->worker_thread); 6652 6653 /* Stop the SLI4 device port */ 6654 phba->pport->work_port_events = 0; 6655} 6656 6657/** 6658 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 6659 * @pdev: pointer to PCI device 6660 * @pid: pointer to PCI device identifier 6661 * 6662 * This routine is to be called to attach a device with SLI-3 interface spec 6663 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 6664 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 6665 * information of the device and driver to see if the driver state that it can 6666 * support this kind of device. If the match is successful, the driver core 6667 * invokes this routine. If this routine determines it can claim the HBA, it 6668 * does all the initialization that it needs to do to handle the HBA properly. 6669 * 6670 * Return code 6671 * 0 - driver can claim the device 6672 * negative value - driver can not claim the device 6673 **/ 6674static int __devinit 6675lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 6676{ 6677 struct lpfc_hba *phba; 6678 struct lpfc_vport *vport = NULL; 6679 int error; 6680 uint32_t cfg_mode, intr_mode; 6681 6682 /* Allocate memory for HBA structure */ 6683 phba = lpfc_hba_alloc(pdev); 6684 if (!phba) 6685 return -ENOMEM; 6686 6687 /* Perform generic PCI device enabling operation */ 6688 error = lpfc_enable_pci_dev(phba); 6689 if (error) { 6690 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6691 "1401 Failed to enable pci device.\n"); 6692 goto out_free_phba; 6693 } 6694 6695 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 6696 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 6697 if (error) 6698 goto out_disable_pci_dev; 6699 6700 /* Set up SLI-3 specific device PCI memory space */ 6701 error = lpfc_sli_pci_mem_setup(phba); 6702 if (error) { 6703 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6704 "1402 Failed to set up pci memory space.\n"); 6705 goto out_disable_pci_dev; 6706 } 6707 6708 /* Set up phase-1 common device driver resources */ 6709 error = lpfc_setup_driver_resource_phase1(phba); 6710 if (error) { 6711 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6712 "1403 Failed to set up driver resource.\n"); 6713 goto out_unset_pci_mem_s3; 6714 } 6715 6716 /* Set up SLI-3 specific device driver resources */ 6717 error = lpfc_sli_driver_resource_setup(phba); 6718 if (error) { 6719 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6720 "1404 Failed to set up driver resource.\n"); 6721 goto out_unset_pci_mem_s3; 6722 } 6723 6724 /* Initialize and populate the iocb list per host */ 6725 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 6726 if (error) { 6727 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6728 "1405 Failed to initialize iocb list.\n"); 6729 goto out_unset_driver_resource_s3; 6730 } 6731 6732 /* Set up common device driver resources */ 6733 error = lpfc_setup_driver_resource_phase2(phba); 6734 if (error) { 6735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6736 "1406 Failed to set up driver resource.\n"); 6737 goto out_free_iocb_list; 6738 } 6739 6740 /* Create SCSI host to the physical port */ 6741 error = lpfc_create_shost(phba); 6742 if (error) { 6743 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6744 "1407 Failed to create scsi host.\n"); 6745 goto out_unset_driver_resource; 6746 } 6747 6748 /* Configure sysfs attributes */ 6749 vport = phba->pport; 6750 error = lpfc_alloc_sysfs_attr(vport); 6751 if (error) { 6752 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6753 "1476 Failed to allocate sysfs attr\n"); 6754 goto out_destroy_shost; 6755 } 6756 6757 /* Now, trying to enable interrupt and bring up the device */ 6758 cfg_mode = phba->cfg_use_msi; 6759 while (true) { 6760 /* Put device to a known state before enabling interrupt */ 6761 lpfc_stop_port(phba); 6762 /* Configure and enable interrupt */ 6763 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 6764 if (intr_mode == LPFC_INTR_ERROR) { 6765 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6766 "0431 Failed to enable interrupt.\n"); 6767 error = -ENODEV; 6768 goto out_free_sysfs_attr; 6769 } 6770 /* SLI-3 HBA setup */ 6771 if (lpfc_sli_hba_setup(phba)) { 6772 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6773 "1477 Failed to set up hba\n"); 6774 error = -ENODEV; 6775 goto out_remove_device; 6776 } 6777 6778 /* Wait 50ms for the interrupts of previous mailbox commands */ 6779 msleep(50); 6780 /* Check active interrupts on message signaled interrupts */ 6781 if (intr_mode == 0 || 6782 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 6783 /* Log the current active interrupt mode */ 6784 phba->intr_mode = intr_mode; 6785 lpfc_log_intr_mode(phba, intr_mode); 6786 break; 6787 } else { 6788 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6789 "0447 Configure interrupt mode (%d) " 6790 "failed active interrupt test.\n", 6791 intr_mode); 6792 /* Disable the current interrupt mode */ 6793 lpfc_sli_disable_intr(phba); 6794 /* Try next level of interrupt mode */ 6795 cfg_mode = --intr_mode; 6796 } 6797 } 6798 6799 /* Perform post initialization setup */ 6800 lpfc_post_init_setup(phba); 6801 6802 /* Check if there are static vports to be created. */ 6803 lpfc_create_static_vport(phba); 6804 6805 return 0; 6806 6807out_remove_device: 6808 lpfc_unset_hba(phba); 6809out_free_sysfs_attr: 6810 lpfc_free_sysfs_attr(vport); 6811out_destroy_shost: 6812 lpfc_destroy_shost(phba); 6813out_unset_driver_resource: 6814 lpfc_unset_driver_resource_phase2(phba); 6815out_free_iocb_list: 6816 lpfc_free_iocb_list(phba); 6817out_unset_driver_resource_s3: 6818 lpfc_sli_driver_resource_unset(phba); 6819out_unset_pci_mem_s3: 6820 lpfc_sli_pci_mem_unset(phba); 6821out_disable_pci_dev: 6822 lpfc_disable_pci_dev(phba); 6823out_free_phba: 6824 lpfc_hba_free(phba); 6825 return error; 6826} 6827 6828/** 6829 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 6830 * @pdev: pointer to PCI device 6831 * 6832 * This routine is to be called to disattach a device with SLI-3 interface 6833 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 6834 * removed from PCI bus, it performs all the necessary cleanup for the HBA 6835 * device to be removed from the PCI subsystem properly. 6836 **/ 6837static void __devexit 6838lpfc_pci_remove_one_s3(struct pci_dev *pdev) 6839{ 6840 struct Scsi_Host *shost = pci_get_drvdata(pdev); 6841 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6842 struct lpfc_vport **vports; 6843 struct lpfc_hba *phba = vport->phba; 6844 int i; 6845 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 6846 6847 spin_lock_irq(&phba->hbalock); 6848 vport->load_flag |= FC_UNLOADING; 6849 spin_unlock_irq(&phba->hbalock); 6850 6851 lpfc_free_sysfs_attr(vport); 6852 6853 /* Release all the vports against this physical port */ 6854 vports = lpfc_create_vport_work_array(phba); 6855 if (vports != NULL) 6856 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 6857 fc_vport_terminate(vports[i]->fc_vport); 6858 lpfc_destroy_vport_work_array(phba, vports); 6859 6860 /* Remove FC host and then SCSI host with the physical port */ 6861 fc_remove_host(shost); 6862 scsi_remove_host(shost); 6863 lpfc_cleanup(vport); 6864 6865 /* 6866 * Bring down the SLI Layer. This step disable all interrupts, 6867 * clears the rings, discards all mailbox commands, and resets 6868 * the HBA. 6869 */ 6870 6871 /* HBA interrupt will be diabled after this call */ 6872 lpfc_sli_hba_down(phba); 6873 /* Stop kthread signal shall trigger work_done one more time */ 6874 kthread_stop(phba->worker_thread); 6875 /* Final cleanup of txcmplq and reset the HBA */ 6876 lpfc_sli_brdrestart(phba); 6877 6878 lpfc_stop_hba_timers(phba); 6879 spin_lock_irq(&phba->hbalock); 6880 list_del_init(&vport->listentry); 6881 spin_unlock_irq(&phba->hbalock); 6882 6883 lpfc_debugfs_terminate(vport); 6884 6885 /* Disable interrupt */ 6886 lpfc_sli_disable_intr(phba); 6887 6888 pci_set_drvdata(pdev, NULL); 6889 scsi_host_put(shost); 6890 6891 /* 6892 * Call scsi_free before mem_free since scsi bufs are released to their 6893 * corresponding pools here. 6894 */ 6895 lpfc_scsi_free(phba); 6896 lpfc_mem_free_all(phba); 6897 6898 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 6899 phba->hbqslimp.virt, phba->hbqslimp.phys); 6900 6901 /* Free resources associated with SLI2 interface */ 6902 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6903 phba->slim2p.virt, phba->slim2p.phys); 6904 6905 /* unmap adapter SLIM and Control Registers */ 6906 iounmap(phba->ctrl_regs_memmap_p); 6907 iounmap(phba->slim_memmap_p); 6908 6909 lpfc_hba_free(phba); 6910 6911 pci_release_selected_regions(pdev, bars); 6912 pci_disable_device(pdev); 6913} 6914 6915/** 6916 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 6917 * @pdev: pointer to PCI device 6918 * @msg: power management message 6919 * 6920 * This routine is to be called from the kernel's PCI subsystem to support 6921 * system Power Management (PM) to device with SLI-3 interface spec. When 6922 * PM invokes this method, it quiesces the device by stopping the driver's 6923 * worker thread for the device, turning off device's interrupt and DMA, 6924 * and bring the device offline. Note that as the driver implements the 6925 * minimum PM requirements to a power-aware driver's PM support for the 6926 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 6927 * to the suspend() method call will be treated as SUSPEND and the driver will 6928 * fully reinitialize its device during resume() method call, the driver will 6929 * set device to PCI_D3hot state in PCI config space instead of setting it 6930 * according to the @msg provided by the PM. 6931 * 6932 * Return code 6933 * 0 - driver suspended the device 6934 * Error otherwise 6935 **/ 6936static int 6937lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 6938{ 6939 struct Scsi_Host *shost = pci_get_drvdata(pdev); 6940 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 6941 6942 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6943 "0473 PCI device Power Management suspend.\n"); 6944 6945 /* Bring down the device */ 6946 lpfc_offline_prep(phba); 6947 lpfc_offline(phba); 6948 kthread_stop(phba->worker_thread); 6949 6950 /* Disable interrupt from device */ 6951 lpfc_sli_disable_intr(phba); 6952 6953 /* Save device state to PCI config space */ 6954 pci_save_state(pdev); 6955 pci_set_power_state(pdev, PCI_D3hot); 6956 6957 return 0; 6958} 6959 6960/** 6961 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 6962 * @pdev: pointer to PCI device 6963 * 6964 * This routine is to be called from the kernel's PCI subsystem to support 6965 * system Power Management (PM) to device with SLI-3 interface spec. When PM 6966 * invokes this method, it restores the device's PCI config space state and 6967 * fully reinitializes the device and brings it online. Note that as the 6968 * driver implements the minimum PM requirements to a power-aware driver's 6969 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 6970 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 6971 * driver will fully reinitialize its device during resume() method call, 6972 * the device will be set to PCI_D0 directly in PCI config space before 6973 * restoring the state. 6974 * 6975 * Return code 6976 * 0 - driver suspended the device 6977 * Error otherwise 6978 **/ 6979static int 6980lpfc_pci_resume_one_s3(struct pci_dev *pdev) 6981{ 6982 struct Scsi_Host *shost = pci_get_drvdata(pdev); 6983 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 6984 uint32_t intr_mode; 6985 int error; 6986 6987 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6988 "0452 PCI device Power Management resume.\n"); 6989 6990 /* Restore device state from PCI config space */ 6991 pci_set_power_state(pdev, PCI_D0); 6992 pci_restore_state(pdev); 6993 if (pdev->is_busmaster) 6994 pci_set_master(pdev); 6995 6996 /* Startup the kernel thread for this host adapter. */ 6997 phba->worker_thread = kthread_run(lpfc_do_work, phba, 6998 "lpfc_worker_%d", phba->brd_no); 6999 if (IS_ERR(phba->worker_thread)) { 7000 error = PTR_ERR(phba->worker_thread); 7001 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7002 "0434 PM resume failed to start worker " 7003 "thread: error=x%x.\n", error); 7004 return error; 7005 } 7006 7007 /* Configure and enable interrupt */ 7008 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7009 if (intr_mode == LPFC_INTR_ERROR) { 7010 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7011 "0430 PM resume Failed to enable interrupt\n"); 7012 return -EIO; 7013 } else 7014 phba->intr_mode = intr_mode; 7015 7016 /* Restart HBA and bring it online */ 7017 lpfc_sli_brdrestart(phba); 7018 lpfc_online(phba); 7019 7020 /* Log the current active interrupt mode */ 7021 lpfc_log_intr_mode(phba, phba->intr_mode); 7022 7023 return 0; 7024} 7025 7026/** 7027 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 7028 * @pdev: pointer to PCI device. 7029 * @state: the current PCI connection state. 7030 * 7031 * This routine is called from the PCI subsystem for I/O error handling to 7032 * device with SLI-3 interface spec. This function is called by the PCI 7033 * subsystem after a PCI bus error affecting this device has been detected. 7034 * When this function is invoked, it will need to stop all the I/Os and 7035 * interrupt(s) to the device. Once that is done, it will return 7036 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 7037 * as desired. 7038 * 7039 * Return codes 7040 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7041 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7042 **/ 7043static pci_ers_result_t 7044lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 7045{ 7046 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7047 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7048 struct lpfc_sli *psli = &phba->sli; 7049 struct lpfc_sli_ring *pring; 7050 7051 if (state == pci_channel_io_perm_failure) { 7052 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7053 "0472 PCI channel I/O permanent failure\n"); 7054 /* Block all SCSI devices' I/Os on the host */ 7055 lpfc_scsi_dev_block(phba); 7056 /* Clean up all driver's outstanding SCSI I/Os */ 7057 lpfc_sli_flush_fcp_rings(phba); 7058 return PCI_ERS_RESULT_DISCONNECT; 7059 } 7060 7061 pci_disable_device(pdev); 7062 /* 7063 * There may be I/Os dropped by the firmware. 7064 * Error iocb (I/O) on txcmplq and let the SCSI layer 7065 * retry it after re-establishing link. 7066 */ 7067 pring = &psli->ring[psli->fcp_ring]; 7068 lpfc_sli_abort_iocb_ring(phba, pring); 7069 7070 /* Disable interrupt */ 7071 lpfc_sli_disable_intr(phba); 7072 7073 /* Request a slot reset. */ 7074 return PCI_ERS_RESULT_NEED_RESET; 7075} 7076 7077/** 7078 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 7079 * @pdev: pointer to PCI device. 7080 * 7081 * This routine is called from the PCI subsystem for error handling to 7082 * device with SLI-3 interface spec. This is called after PCI bus has been 7083 * reset to restart the PCI card from scratch, as if from a cold-boot. 7084 * During the PCI subsystem error recovery, after driver returns 7085 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 7086 * recovery and then call this routine before calling the .resume method 7087 * to recover the device. This function will initialize the HBA device, 7088 * enable the interrupt, but it will just put the HBA to offline state 7089 * without passing any I/O traffic. 7090 * 7091 * Return codes 7092 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7093 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7094 */ 7095static pci_ers_result_t 7096lpfc_io_slot_reset_s3(struct pci_dev *pdev) 7097{ 7098 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7099 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7100 struct lpfc_sli *psli = &phba->sli; 7101 uint32_t intr_mode; 7102 7103 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 7104 if (pci_enable_device_mem(pdev)) { 7105 printk(KERN_ERR "lpfc: Cannot re-enable " 7106 "PCI device after reset.\n"); 7107 return PCI_ERS_RESULT_DISCONNECT; 7108 } 7109 7110 pci_restore_state(pdev); 7111 if (pdev->is_busmaster) 7112 pci_set_master(pdev); 7113 7114 spin_lock_irq(&phba->hbalock); 7115 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 7116 spin_unlock_irq(&phba->hbalock); 7117 7118 /* Configure and enable interrupt */ 7119 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7120 if (intr_mode == LPFC_INTR_ERROR) { 7121 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7122 "0427 Cannot re-enable interrupt after " 7123 "slot reset.\n"); 7124 return PCI_ERS_RESULT_DISCONNECT; 7125 } else 7126 phba->intr_mode = intr_mode; 7127 7128 /* Take device offline; this will perform cleanup */ 7129 lpfc_offline(phba); 7130 lpfc_sli_brdrestart(phba); 7131 7132 /* Log the current active interrupt mode */ 7133 lpfc_log_intr_mode(phba, phba->intr_mode); 7134 7135 return PCI_ERS_RESULT_RECOVERED; 7136} 7137 7138/** 7139 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 7140 * @pdev: pointer to PCI device 7141 * 7142 * This routine is called from the PCI subsystem for error handling to device 7143 * with SLI-3 interface spec. It is called when kernel error recovery tells 7144 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 7145 * error recovery. After this call, traffic can start to flow from this device 7146 * again. 7147 */ 7148static void 7149lpfc_io_resume_s3(struct pci_dev *pdev) 7150{ 7151 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7152 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7153 7154 lpfc_online(phba); 7155} 7156 7157/** 7158 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 7159 * @phba: pointer to lpfc hba data structure. 7160 * 7161 * returns the number of ELS/CT IOCBs to reserve 7162 **/ 7163int 7164lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 7165{ 7166 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 7167 7168 if (max_xri <= 100) 7169 return 4; 7170 else if (max_xri <= 256) 7171 return 8; 7172 else if (max_xri <= 512) 7173 return 16; 7174 else if (max_xri <= 1024) 7175 return 32; 7176 else 7177 return 48; 7178} 7179 7180/** 7181 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 7182 * @pdev: pointer to PCI device 7183 * @pid: pointer to PCI device identifier 7184 * 7185 * This routine is called from the kernel's PCI subsystem to device with 7186 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 7187 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 7188 * information of the device and driver to see if the driver state that it 7189 * can support this kind of device. If the match is successful, the driver 7190 * core invokes this routine. If this routine determines it can claim the HBA, 7191 * it does all the initialization that it needs to do to handle the HBA 7192 * properly. 7193 * 7194 * Return code 7195 * 0 - driver can claim the device 7196 * negative value - driver can not claim the device 7197 **/ 7198static int __devinit 7199lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 7200{ 7201 struct lpfc_hba *phba; 7202 struct lpfc_vport *vport = NULL; 7203 int error; 7204 uint32_t cfg_mode, intr_mode; 7205 int mcnt; 7206 7207 /* Allocate memory for HBA structure */ 7208 phba = lpfc_hba_alloc(pdev); 7209 if (!phba) 7210 return -ENOMEM; 7211 7212 /* Perform generic PCI device enabling operation */ 7213 error = lpfc_enable_pci_dev(phba); 7214 if (error) { 7215 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7216 "1409 Failed to enable pci device.\n"); 7217 goto out_free_phba; 7218 } 7219 7220 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 7221 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 7222 if (error) 7223 goto out_disable_pci_dev; 7224 7225 /* Set up SLI-4 specific device PCI memory space */ 7226 error = lpfc_sli4_pci_mem_setup(phba); 7227 if (error) { 7228 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7229 "1410 Failed to set up pci memory space.\n"); 7230 goto out_disable_pci_dev; 7231 } 7232 7233 /* Set up phase-1 common device driver resources */ 7234 error = lpfc_setup_driver_resource_phase1(phba); 7235 if (error) { 7236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7237 "1411 Failed to set up driver resource.\n"); 7238 goto out_unset_pci_mem_s4; 7239 } 7240 7241 /* Set up SLI-4 Specific device driver resources */ 7242 error = lpfc_sli4_driver_resource_setup(phba); 7243 if (error) { 7244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7245 "1412 Failed to set up driver resource.\n"); 7246 goto out_unset_pci_mem_s4; 7247 } 7248 7249 /* Initialize and populate the iocb list per host */ 7250 error = lpfc_init_iocb_list(phba, 7251 phba->sli4_hba.max_cfg_param.max_xri); 7252 if (error) { 7253 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7254 "1413 Failed to initialize iocb list.\n"); 7255 goto out_unset_driver_resource_s4; 7256 } 7257 7258 /* Set up common device driver resources */ 7259 error = lpfc_setup_driver_resource_phase2(phba); 7260 if (error) { 7261 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7262 "1414 Failed to set up driver resource.\n"); 7263 goto out_free_iocb_list; 7264 } 7265 7266 /* Create SCSI host to the physical port */ 7267 error = lpfc_create_shost(phba); 7268 if (error) { 7269 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7270 "1415 Failed to create scsi host.\n"); 7271 goto out_unset_driver_resource; 7272 } 7273 7274 /* Configure sysfs attributes */ 7275 vport = phba->pport; 7276 error = lpfc_alloc_sysfs_attr(vport); 7277 if (error) { 7278 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7279 "1416 Failed to allocate sysfs attr\n"); 7280 goto out_destroy_shost; 7281 } 7282 7283 /* Now, trying to enable interrupt and bring up the device */ 7284 cfg_mode = phba->cfg_use_msi; 7285 while (true) { 7286 /* Put device to a known state before enabling interrupt */ 7287 lpfc_stop_port(phba); 7288 /* Configure and enable interrupt */ 7289 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 7290 if (intr_mode == LPFC_INTR_ERROR) { 7291 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7292 "0426 Failed to enable interrupt.\n"); 7293 error = -ENODEV; 7294 goto out_free_sysfs_attr; 7295 } 7296 /* Set up SLI-4 HBA */ 7297 if (lpfc_sli4_hba_setup(phba)) { 7298 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7299 "1421 Failed to set up hba\n"); 7300 error = -ENODEV; 7301 goto out_disable_intr; 7302 } 7303 7304 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 7305 if (intr_mode != 0) 7306 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 7307 LPFC_ACT_INTR_CNT); 7308 7309 /* Check active interrupts received only for MSI/MSI-X */ 7310 if (intr_mode == 0 || 7311 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 7312 /* Log the current active interrupt mode */ 7313 phba->intr_mode = intr_mode; 7314 lpfc_log_intr_mode(phba, intr_mode); 7315 break; 7316 } 7317 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7318 "0451 Configure interrupt mode (%d) " 7319 "failed active interrupt test.\n", 7320 intr_mode); 7321 /* Unset the preivous SLI-4 HBA setup */ 7322 lpfc_sli4_unset_hba(phba); 7323 /* Try next level of interrupt mode */ 7324 cfg_mode = --intr_mode; 7325 } 7326 7327 /* Perform post initialization setup */ 7328 lpfc_post_init_setup(phba); 7329 7330 return 0; 7331 7332out_disable_intr: 7333 lpfc_sli4_disable_intr(phba); 7334out_free_sysfs_attr: 7335 lpfc_free_sysfs_attr(vport); 7336out_destroy_shost: 7337 lpfc_destroy_shost(phba); 7338out_unset_driver_resource: 7339 lpfc_unset_driver_resource_phase2(phba); 7340out_free_iocb_list: 7341 lpfc_free_iocb_list(phba); 7342out_unset_driver_resource_s4: 7343 lpfc_sli4_driver_resource_unset(phba); 7344out_unset_pci_mem_s4: 7345 lpfc_sli4_pci_mem_unset(phba); 7346out_disable_pci_dev: 7347 lpfc_disable_pci_dev(phba); 7348out_free_phba: 7349 lpfc_hba_free(phba); 7350 return error; 7351} 7352 7353/** 7354 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 7355 * @pdev: pointer to PCI device 7356 * 7357 * This routine is called from the kernel's PCI subsystem to device with 7358 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 7359 * removed from PCI bus, it performs all the necessary cleanup for the HBA 7360 * device to be removed from the PCI subsystem properly. 7361 **/ 7362static void __devexit 7363lpfc_pci_remove_one_s4(struct pci_dev *pdev) 7364{ 7365 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7366 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7367 struct lpfc_vport **vports; 7368 struct lpfc_hba *phba = vport->phba; 7369 int i; 7370 7371 /* Mark the device unloading flag */ 7372 spin_lock_irq(&phba->hbalock); 7373 vport->load_flag |= FC_UNLOADING; 7374 spin_unlock_irq(&phba->hbalock); 7375 7376 /* Free the HBA sysfs attributes */ 7377 lpfc_free_sysfs_attr(vport); 7378 7379 /* Release all the vports against this physical port */ 7380 vports = lpfc_create_vport_work_array(phba); 7381 if (vports != NULL) 7382 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 7383 fc_vport_terminate(vports[i]->fc_vport); 7384 lpfc_destroy_vport_work_array(phba, vports); 7385 7386 /* Remove FC host and then SCSI host with the physical port */ 7387 fc_remove_host(shost); 7388 scsi_remove_host(shost); 7389 7390 /* Perform cleanup on the physical port */ 7391 lpfc_cleanup(vport); 7392 7393 /* 7394 * Bring down the SLI Layer. This step disables all interrupts, 7395 * clears the rings, discards all mailbox commands, and resets 7396 * the HBA FCoE function. 7397 */ 7398 lpfc_debugfs_terminate(vport); 7399 lpfc_sli4_hba_unset(phba); 7400 7401 spin_lock_irq(&phba->hbalock); 7402 list_del_init(&vport->listentry); 7403 spin_unlock_irq(&phba->hbalock); 7404 7405 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi 7406 * buffers are released to their corresponding pools here. 7407 */ 7408 lpfc_scsi_free(phba); 7409 lpfc_sli4_driver_resource_unset(phba); 7410 7411 /* Unmap adapter Control and Doorbell registers */ 7412 lpfc_sli4_pci_mem_unset(phba); 7413 7414 /* Release PCI resources and disable device's PCI function */ 7415 scsi_host_put(shost); 7416 lpfc_disable_pci_dev(phba); 7417 7418 /* Finally, free the driver's device data structure */ 7419 lpfc_hba_free(phba); 7420 7421 return; 7422} 7423 7424/** 7425 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 7426 * @pdev: pointer to PCI device 7427 * @msg: power management message 7428 * 7429 * This routine is called from the kernel's PCI subsystem to support system 7430 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 7431 * this method, it quiesces the device by stopping the driver's worker 7432 * thread for the device, turning off device's interrupt and DMA, and bring 7433 * the device offline. Note that as the driver implements the minimum PM 7434 * requirements to a power-aware driver's PM support for suspend/resume -- all 7435 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 7436 * method call will be treated as SUSPEND and the driver will fully 7437 * reinitialize its device during resume() method call, the driver will set 7438 * device to PCI_D3hot state in PCI config space instead of setting it 7439 * according to the @msg provided by the PM. 7440 * 7441 * Return code 7442 * 0 - driver suspended the device 7443 * Error otherwise 7444 **/ 7445static int 7446lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 7447{ 7448 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7449 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7450 7451 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7452 "0298 PCI device Power Management suspend.\n"); 7453 7454 /* Bring down the device */ 7455 lpfc_offline_prep(phba); 7456 lpfc_offline(phba); 7457 kthread_stop(phba->worker_thread); 7458 7459 /* Disable interrupt from device */ 7460 lpfc_sli4_disable_intr(phba); 7461 7462 /* Save device state to PCI config space */ 7463 pci_save_state(pdev); 7464 pci_set_power_state(pdev, PCI_D3hot); 7465 7466 return 0; 7467} 7468 7469/** 7470 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 7471 * @pdev: pointer to PCI device 7472 * 7473 * This routine is called from the kernel's PCI subsystem to support system 7474 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 7475 * this method, it restores the device's PCI config space state and fully 7476 * reinitializes the device and brings it online. Note that as the driver 7477 * implements the minimum PM requirements to a power-aware driver's PM for 7478 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 7479 * to the suspend() method call will be treated as SUSPEND and the driver 7480 * will fully reinitialize its device during resume() method call, the device 7481 * will be set to PCI_D0 directly in PCI config space before restoring the 7482 * state. 7483 * 7484 * Return code 7485 * 0 - driver suspended the device 7486 * Error otherwise 7487 **/ 7488static int 7489lpfc_pci_resume_one_s4(struct pci_dev *pdev) 7490{ 7491 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7492 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7493 uint32_t intr_mode; 7494 int error; 7495 7496 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7497 "0292 PCI device Power Management resume.\n"); 7498 7499 /* Restore device state from PCI config space */ 7500 pci_set_power_state(pdev, PCI_D0); 7501 pci_restore_state(pdev); 7502 if (pdev->is_busmaster) 7503 pci_set_master(pdev); 7504 7505 /* Startup the kernel thread for this host adapter. */ 7506 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7507 "lpfc_worker_%d", phba->brd_no); 7508 if (IS_ERR(phba->worker_thread)) { 7509 error = PTR_ERR(phba->worker_thread); 7510 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7511 "0293 PM resume failed to start worker " 7512 "thread: error=x%x.\n", error); 7513 return error; 7514 } 7515 7516 /* Configure and enable interrupt */ 7517 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 7518 if (intr_mode == LPFC_INTR_ERROR) { 7519 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7520 "0294 PM resume Failed to enable interrupt\n"); 7521 return -EIO; 7522 } else 7523 phba->intr_mode = intr_mode; 7524 7525 /* Restart HBA and bring it online */ 7526 lpfc_sli_brdrestart(phba); 7527 lpfc_online(phba); 7528 7529 /* Log the current active interrupt mode */ 7530 lpfc_log_intr_mode(phba, phba->intr_mode); 7531 7532 return 0; 7533} 7534 7535/** 7536 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 7537 * @pdev: pointer to PCI device. 7538 * @state: the current PCI connection state. 7539 * 7540 * This routine is called from the PCI subsystem for error handling to device 7541 * with SLI-4 interface spec. This function is called by the PCI subsystem 7542 * after a PCI bus error affecting this device has been detected. When this 7543 * function is invoked, it will need to stop all the I/Os and interrupt(s) 7544 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 7545 * for the PCI subsystem to perform proper recovery as desired. 7546 * 7547 * Return codes 7548 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7549 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7550 **/ 7551static pci_ers_result_t 7552lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 7553{ 7554 return PCI_ERS_RESULT_NEED_RESET; 7555} 7556 7557/** 7558 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 7559 * @pdev: pointer to PCI device. 7560 * 7561 * This routine is called from the PCI subsystem for error handling to device 7562 * with SLI-4 interface spec. It is called after PCI bus has been reset to 7563 * restart the PCI card from scratch, as if from a cold-boot. During the 7564 * PCI subsystem error recovery, after the driver returns 7565 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 7566 * recovery and then call this routine before calling the .resume method to 7567 * recover the device. This function will initialize the HBA device, enable 7568 * the interrupt, but it will just put the HBA to offline state without 7569 * passing any I/O traffic. 7570 * 7571 * Return codes 7572 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7573 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7574 */ 7575static pci_ers_result_t 7576lpfc_io_slot_reset_s4(struct pci_dev *pdev) 7577{ 7578 return PCI_ERS_RESULT_RECOVERED; 7579} 7580 7581/** 7582 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 7583 * @pdev: pointer to PCI device 7584 * 7585 * This routine is called from the PCI subsystem for error handling to device 7586 * with SLI-4 interface spec. It is called when kernel error recovery tells 7587 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 7588 * error recovery. After this call, traffic can start to flow from this device 7589 * again. 7590 **/ 7591static void 7592lpfc_io_resume_s4(struct pci_dev *pdev) 7593{ 7594 return; 7595} 7596 7597/** 7598 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 7599 * @pdev: pointer to PCI device 7600 * @pid: pointer to PCI device identifier 7601 * 7602 * This routine is to be registered to the kernel's PCI subsystem. When an 7603 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 7604 * at PCI device-specific information of the device and driver to see if the 7605 * driver state that it can support this kind of device. If the match is 7606 * successful, the driver core invokes this routine. This routine dispatches 7607 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 7608 * do all the initialization that it needs to do to handle the HBA device 7609 * properly. 7610 * 7611 * Return code 7612 * 0 - driver can claim the device 7613 * negative value - driver can not claim the device 7614 **/ 7615static int __devinit 7616lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 7617{ 7618 int rc; 7619 uint16_t dev_id; 7620 7621 if (pci_read_config_word(pdev, PCI_DEVICE_ID, &dev_id)) 7622 return -ENODEV; 7623 7624 switch (dev_id) { 7625 case PCI_DEVICE_ID_TIGERSHARK: 7626 case PCI_DEVICE_ID_TIGERSHARK_S: 7627 rc = lpfc_pci_probe_one_s4(pdev, pid); 7628 break; 7629 default: 7630 rc = lpfc_pci_probe_one_s3(pdev, pid); 7631 break; 7632 } 7633 return rc; 7634} 7635 7636/** 7637 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 7638 * @pdev: pointer to PCI device 7639 * 7640 * This routine is to be registered to the kernel's PCI subsystem. When an 7641 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 7642 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 7643 * remove routine, which will perform all the necessary cleanup for the 7644 * device to be removed from the PCI subsystem properly. 7645 **/ 7646static void __devexit 7647lpfc_pci_remove_one(struct pci_dev *pdev) 7648{ 7649 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7650 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7651 7652 switch (phba->pci_dev_grp) { 7653 case LPFC_PCI_DEV_LP: 7654 lpfc_pci_remove_one_s3(pdev); 7655 break; 7656 case LPFC_PCI_DEV_OC: 7657 lpfc_pci_remove_one_s4(pdev); 7658 break; 7659 default: 7660 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7661 "1424 Invalid PCI device group: 0x%x\n", 7662 phba->pci_dev_grp); 7663 break; 7664 } 7665 return; 7666} 7667 7668/** 7669 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 7670 * @pdev: pointer to PCI device 7671 * @msg: power management message 7672 * 7673 * This routine is to be registered to the kernel's PCI subsystem to support 7674 * system Power Management (PM). When PM invokes this method, it dispatches 7675 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 7676 * suspend the device. 7677 * 7678 * Return code 7679 * 0 - driver suspended the device 7680 * Error otherwise 7681 **/ 7682static int 7683lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 7684{ 7685 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7686 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7687 int rc = -ENODEV; 7688 7689 switch (phba->pci_dev_grp) { 7690 case LPFC_PCI_DEV_LP: 7691 rc = lpfc_pci_suspend_one_s3(pdev, msg); 7692 break; 7693 case LPFC_PCI_DEV_OC: 7694 rc = lpfc_pci_suspend_one_s4(pdev, msg); 7695 break; 7696 default: 7697 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7698 "1425 Invalid PCI device group: 0x%x\n", 7699 phba->pci_dev_grp); 7700 break; 7701 } 7702 return rc; 7703} 7704 7705/** 7706 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 7707 * @pdev: pointer to PCI device 7708 * 7709 * This routine is to be registered to the kernel's PCI subsystem to support 7710 * system Power Management (PM). When PM invokes this method, it dispatches 7711 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 7712 * resume the device. 7713 * 7714 * Return code 7715 * 0 - driver suspended the device 7716 * Error otherwise 7717 **/ 7718static int 7719lpfc_pci_resume_one(struct pci_dev *pdev) 7720{ 7721 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7722 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7723 int rc = -ENODEV; 7724 7725 switch (phba->pci_dev_grp) { 7726 case LPFC_PCI_DEV_LP: 7727 rc = lpfc_pci_resume_one_s3(pdev); 7728 break; 7729 case LPFC_PCI_DEV_OC: 7730 rc = lpfc_pci_resume_one_s4(pdev); 7731 break; 7732 default: 7733 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7734 "1426 Invalid PCI device group: 0x%x\n", 7735 phba->pci_dev_grp); 7736 break; 7737 } 7738 return rc; 7739} 7740 7741/** 7742 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 7743 * @pdev: pointer to PCI device. 7744 * @state: the current PCI connection state. 7745 * 7746 * This routine is registered to the PCI subsystem for error handling. This 7747 * function is called by the PCI subsystem after a PCI bus error affecting 7748 * this device has been detected. When this routine is invoked, it dispatches 7749 * the action to the proper SLI-3 or SLI-4 device error detected handling 7750 * routine, which will perform the proper error detected operation. 7751 * 7752 * Return codes 7753 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7754 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7755 **/ 7756static pci_ers_result_t 7757lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 7758{ 7759 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7760 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7761 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 7762 7763 switch (phba->pci_dev_grp) { 7764 case LPFC_PCI_DEV_LP: 7765 rc = lpfc_io_error_detected_s3(pdev, state); 7766 break; 7767 case LPFC_PCI_DEV_OC: 7768 rc = lpfc_io_error_detected_s4(pdev, state); 7769 break; 7770 default: 7771 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7772 "1427 Invalid PCI device group: 0x%x\n", 7773 phba->pci_dev_grp); 7774 break; 7775 } 7776 return rc; 7777} 7778 7779/** 7780 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 7781 * @pdev: pointer to PCI device. 7782 * 7783 * This routine is registered to the PCI subsystem for error handling. This 7784 * function is called after PCI bus has been reset to restart the PCI card 7785 * from scratch, as if from a cold-boot. When this routine is invoked, it 7786 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 7787 * routine, which will perform the proper device reset. 7788 * 7789 * Return codes 7790 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7791 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7792 **/ 7793static pci_ers_result_t 7794lpfc_io_slot_reset(struct pci_dev *pdev) 7795{ 7796 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7797 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7798 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 7799 7800 switch (phba->pci_dev_grp) { 7801 case LPFC_PCI_DEV_LP: 7802 rc = lpfc_io_slot_reset_s3(pdev); 7803 break; 7804 case LPFC_PCI_DEV_OC: 7805 rc = lpfc_io_slot_reset_s4(pdev); 7806 break; 7807 default: 7808 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7809 "1428 Invalid PCI device group: 0x%x\n", 7810 phba->pci_dev_grp); 7811 break; 7812 } 7813 return rc; 7814} 7815 7816/** 7817 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 7818 * @pdev: pointer to PCI device 7819 * 7820 * This routine is registered to the PCI subsystem for error handling. It 7821 * is called when kernel error recovery tells the lpfc driver that it is 7822 * OK to resume normal PCI operation after PCI bus error recovery. When 7823 * this routine is invoked, it dispatches the action to the proper SLI-3 7824 * or SLI-4 device io_resume routine, which will resume the device operation. 7825 **/ 7826static void 7827lpfc_io_resume(struct pci_dev *pdev) 7828{ 7829 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7830 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7831 7832 switch (phba->pci_dev_grp) { 7833 case LPFC_PCI_DEV_LP: 7834 lpfc_io_resume_s3(pdev); 7835 break; 7836 case LPFC_PCI_DEV_OC: 7837 lpfc_io_resume_s4(pdev); 7838 break; 7839 default: 7840 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7841 "1429 Invalid PCI device group: 0x%x\n", 7842 phba->pci_dev_grp); 7843 break; 7844 } 7845 return; 7846} 7847 7848static struct pci_device_id lpfc_id_table[] = { 7849 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 7850 PCI_ANY_ID, PCI_ANY_ID, }, 7851 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 7852 PCI_ANY_ID, PCI_ANY_ID, }, 7853 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 7854 PCI_ANY_ID, PCI_ANY_ID, }, 7855 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 7856 PCI_ANY_ID, PCI_ANY_ID, }, 7857 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 7858 PCI_ANY_ID, PCI_ANY_ID, }, 7859 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 7860 PCI_ANY_ID, PCI_ANY_ID, }, 7861 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 7862 PCI_ANY_ID, PCI_ANY_ID, }, 7863 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 7864 PCI_ANY_ID, PCI_ANY_ID, }, 7865 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 7866 PCI_ANY_ID, PCI_ANY_ID, }, 7867 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 7868 PCI_ANY_ID, PCI_ANY_ID, }, 7869 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 7870 PCI_ANY_ID, PCI_ANY_ID, }, 7871 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 7872 PCI_ANY_ID, PCI_ANY_ID, }, 7873 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 7874 PCI_ANY_ID, PCI_ANY_ID, }, 7875 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 7876 PCI_ANY_ID, PCI_ANY_ID, }, 7877 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 7878 PCI_ANY_ID, PCI_ANY_ID, }, 7879 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 7880 PCI_ANY_ID, PCI_ANY_ID, }, 7881 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 7882 PCI_ANY_ID, PCI_ANY_ID, }, 7883 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 7884 PCI_ANY_ID, PCI_ANY_ID, }, 7885 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 7886 PCI_ANY_ID, PCI_ANY_ID, }, 7887 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 7888 PCI_ANY_ID, PCI_ANY_ID, }, 7889 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 7890 PCI_ANY_ID, PCI_ANY_ID, }, 7891 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 7892 PCI_ANY_ID, PCI_ANY_ID, }, 7893 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 7894 PCI_ANY_ID, PCI_ANY_ID, }, 7895 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 7896 PCI_ANY_ID, PCI_ANY_ID, }, 7897 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 7898 PCI_ANY_ID, PCI_ANY_ID, }, 7899 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 7900 PCI_ANY_ID, PCI_ANY_ID, }, 7901 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 7902 PCI_ANY_ID, PCI_ANY_ID, }, 7903 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 7904 PCI_ANY_ID, PCI_ANY_ID, }, 7905 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 7906 PCI_ANY_ID, PCI_ANY_ID, }, 7907 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 7908 PCI_ANY_ID, PCI_ANY_ID, }, 7909 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 7910 PCI_ANY_ID, PCI_ANY_ID, }, 7911 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 7912 PCI_ANY_ID, PCI_ANY_ID, }, 7913 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 7914 PCI_ANY_ID, PCI_ANY_ID, }, 7915 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 7916 PCI_ANY_ID, PCI_ANY_ID, }, 7917 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 7918 PCI_ANY_ID, PCI_ANY_ID, }, 7919 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 7920 PCI_ANY_ID, PCI_ANY_ID, }, 7921 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 7922 PCI_ANY_ID, PCI_ANY_ID, }, 7923 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 7924 PCI_ANY_ID, PCI_ANY_ID, }, 7925 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK_S, 7926 PCI_ANY_ID, PCI_ANY_ID, }, 7927 { 0 } 7928}; 7929 7930MODULE_DEVICE_TABLE(pci, lpfc_id_table); 7931 7932static struct pci_error_handlers lpfc_err_handler = { 7933 .error_detected = lpfc_io_error_detected, 7934 .slot_reset = lpfc_io_slot_reset, 7935 .resume = lpfc_io_resume, 7936}; 7937 7938static struct pci_driver lpfc_driver = { 7939 .name = LPFC_DRIVER_NAME, 7940 .id_table = lpfc_id_table, 7941 .probe = lpfc_pci_probe_one, 7942 .remove = __devexit_p(lpfc_pci_remove_one), 7943 .suspend = lpfc_pci_suspend_one, 7944 .resume = lpfc_pci_resume_one, 7945 .err_handler = &lpfc_err_handler, 7946}; 7947 7948/** 7949 * lpfc_init - lpfc module initialization routine 7950 * 7951 * This routine is to be invoked when the lpfc module is loaded into the 7952 * kernel. The special kernel macro module_init() is used to indicate the 7953 * role of this routine to the kernel as lpfc module entry point. 7954 * 7955 * Return codes 7956 * 0 - successful 7957 * -ENOMEM - FC attach transport failed 7958 * all others - failed 7959 */ 7960static int __init 7961lpfc_init(void) 7962{ 7963 int error = 0; 7964 7965 printk(LPFC_MODULE_DESC "\n"); 7966 printk(LPFC_COPYRIGHT "\n"); 7967 7968 if (lpfc_enable_npiv) { 7969 lpfc_transport_functions.vport_create = lpfc_vport_create; 7970 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 7971 } 7972 lpfc_transport_template = 7973 fc_attach_transport(&lpfc_transport_functions); 7974 if (lpfc_transport_template == NULL) 7975 return -ENOMEM; 7976 if (lpfc_enable_npiv) { 7977 lpfc_vport_transport_template = 7978 fc_attach_transport(&lpfc_vport_transport_functions); 7979 if (lpfc_vport_transport_template == NULL) { 7980 fc_release_transport(lpfc_transport_template); 7981 return -ENOMEM; 7982 } 7983 } 7984 error = pci_register_driver(&lpfc_driver); 7985 if (error) { 7986 fc_release_transport(lpfc_transport_template); 7987 if (lpfc_enable_npiv) 7988 fc_release_transport(lpfc_vport_transport_template); 7989 } 7990 7991 return error; 7992} 7993 7994/** 7995 * lpfc_exit - lpfc module removal routine 7996 * 7997 * This routine is invoked when the lpfc module is removed from the kernel. 7998 * The special kernel macro module_exit() is used to indicate the role of 7999 * this routine to the kernel as lpfc module exit point. 8000 */ 8001static void __exit 8002lpfc_exit(void) 8003{ 8004 pci_unregister_driver(&lpfc_driver); 8005 fc_release_transport(lpfc_transport_template); 8006 if (lpfc_enable_npiv) 8007 fc_release_transport(lpfc_vport_transport_template); 8008 if (_dump_buf_data) { 8009 printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_data " 8010 "at 0x%p\n", 8011 (1L << _dump_buf_data_order), _dump_buf_data); 8012 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 8013 } 8014 8015 if (_dump_buf_dif) { 8016 printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_dif " 8017 "at 0x%p\n", 8018 (1L << _dump_buf_dif_order), _dump_buf_dif); 8019 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 8020 } 8021} 8022 8023module_init(lpfc_init); 8024module_exit(lpfc_exit); 8025MODULE_LICENSE("GPL"); 8026MODULE_DESCRIPTION(LPFC_MODULE_DESC); 8027MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 8028MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 8029