1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2010 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 10 * modify it under the terms of version 2 of the GNU General * 11 * Public License as published by the Free Software Foundation. * 12 * This program is distributed in the hope that it will be useful. * 13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17 * TO BE LEGALLY INVALID. See the GNU General Public License for * 18 * more details, a copy of which can be found in the file COPYING * 19 * included with this package. * 20 *******************************************************************/ 21 22 #include <linux/blkdev.h> 23 #include <linux/delay.h> 24 #include <linux/dma-mapping.h> 25 #include <linux/idr.h> 26 #include <linux/interrupt.h> 27 #include <linux/kthread.h> 28 #include <linux/pci.h> 29 #include <linux/spinlock.h> 30 #include <linux/ctype.h> 31 #include <linux/aer.h> 32 #include <linux/slab.h> 33 34 #include <scsi/scsi.h> 35 #include <scsi/scsi_device.h> 36 #include <scsi/scsi_host.h> 37 #include <scsi/scsi_transport_fc.h> 38 39 #include "lpfc_hw4.h" 40 #include "lpfc_hw.h" 41 #include "lpfc_sli.h" 42 #include "lpfc_sli4.h" 43 #include "lpfc_nl.h" 44 #include "lpfc_disc.h" 45 #include "lpfc_scsi.h" 46 #include "lpfc.h" 47 #include "lpfc_logmsg.h" 48 #include "lpfc_crtn.h" 49 #include "lpfc_vport.h" 50 #include "lpfc_version.h" 51 52 char *_dump_buf_data; 53 unsigned long _dump_buf_data_order; 54 char *_dump_buf_dif; 55 unsigned long _dump_buf_dif_order; 56 spinlock_t _dump_buf_lock; 57 58 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 59 static int lpfc_post_rcv_buf(struct lpfc_hba *); 60 static int lpfc_sli4_queue_create(struct lpfc_hba *); 61 static void lpfc_sli4_queue_destroy(struct lpfc_hba *); 62 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 63 static int lpfc_setup_endian_order(struct lpfc_hba *); 64 static int lpfc_sli4_read_config(struct lpfc_hba *); 65 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 66 static void lpfc_free_sgl_list(struct lpfc_hba *); 67 static int lpfc_init_sgl_list(struct lpfc_hba *); 68 static int lpfc_init_active_sgl_array(struct lpfc_hba *); 69 static void lpfc_free_active_sgl(struct lpfc_hba *); 70 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 71 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 72 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 73 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 74 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 75 76 static struct scsi_transport_template *lpfc_transport_template = NULL; 77 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 78 static DEFINE_IDR(lpfc_hba_index); 79 80 /** 81 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 82 * @phba: pointer to lpfc hba data structure. 83 * 84 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 85 * mailbox command. It retrieves the revision information from the HBA and 86 * collects the Vital Product Data (VPD) about the HBA for preparing the 87 * configuration of the HBA. 88 * 89 * Return codes: 90 * 0 - success. 91 * -ERESTART - requests the SLI layer to reset the HBA and try again. 92 * Any other value - indicates an error. 93 **/ 94 int 95 lpfc_config_port_prep(struct lpfc_hba *phba) 96 { 97 lpfc_vpd_t *vp = &phba->vpd; 98 int i = 0, rc; 99 LPFC_MBOXQ_t *pmb; 100 MAILBOX_t *mb; 101 char *lpfc_vpd_data = NULL; 102 uint16_t offset = 0; 103 static char licensed[56] = 104 "key unlock for use with gnu public licensed code only\0"; 105 static int init_key = 1; 106 107 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 108 if (!pmb) { 109 phba->link_state = LPFC_HBA_ERROR; 110 return -ENOMEM; 111 } 112 113 mb = &pmb->u.mb; 114 phba->link_state = LPFC_INIT_MBX_CMDS; 115 116 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 117 if (init_key) { 118 uint32_t *ptext = (uint32_t *) licensed; 119 120 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 121 *ptext = cpu_to_be32(*ptext); 122 init_key = 0; 123 } 124 125 lpfc_read_nv(phba, pmb); 126 memset((char*)mb->un.varRDnvp.rsvd3, 0, 127 sizeof (mb->un.varRDnvp.rsvd3)); 128 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 129 sizeof (licensed)); 130 131 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 132 133 if (rc != MBX_SUCCESS) { 134 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 135 "0324 Config Port initialization " 136 "error, mbxCmd x%x READ_NVPARM, " 137 "mbxStatus x%x\n", 138 mb->mbxCommand, mb->mbxStatus); 139 mempool_free(pmb, phba->mbox_mem_pool); 140 return -ERESTART; 141 } 142 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 143 sizeof(phba->wwnn)); 144 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 145 sizeof(phba->wwpn)); 146 } 147 148 phba->sli3_options = 0x0; 149 150 /* Setup and issue mailbox READ REV command */ 151 lpfc_read_rev(phba, pmb); 152 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 153 if (rc != MBX_SUCCESS) { 154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 155 "0439 Adapter failed to init, mbxCmd x%x " 156 "READ_REV, mbxStatus x%x\n", 157 mb->mbxCommand, mb->mbxStatus); 158 mempool_free( pmb, phba->mbox_mem_pool); 159 return -ERESTART; 160 } 161 162 163 /* 164 * The value of rr must be 1 since the driver set the cv field to 1. 165 * This setting requires the FW to set all revision fields. 166 */ 167 if (mb->un.varRdRev.rr == 0) { 168 vp->rev.rBit = 0; 169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 170 "0440 Adapter failed to init, READ_REV has " 171 "missing revision information.\n"); 172 mempool_free(pmb, phba->mbox_mem_pool); 173 return -ERESTART; 174 } 175 176 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 177 mempool_free(pmb, phba->mbox_mem_pool); 178 return -EINVAL; 179 } 180 181 /* Save information as VPD data */ 182 vp->rev.rBit = 1; 183 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 184 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 185 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 186 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 187 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 188 vp->rev.biuRev = mb->un.varRdRev.biuRev; 189 vp->rev.smRev = mb->un.varRdRev.smRev; 190 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 191 vp->rev.endecRev = mb->un.varRdRev.endecRev; 192 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 193 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 194 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 195 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 196 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 197 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 198 199 /* If the sli feature level is less then 9, we must 200 * tear down all RPIs and VPIs on link down if NPIV 201 * is enabled. 202 */ 203 if (vp->rev.feaLevelHigh < 9) 204 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 205 206 if (lpfc_is_LC_HBA(phba->pcidev->device)) 207 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 208 sizeof (phba->RandomData)); 209 210 /* Get adapter VPD information */ 211 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 212 if (!lpfc_vpd_data) 213 goto out_free_mbox; 214 215 do { 216 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 217 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 218 219 if (rc != MBX_SUCCESS) { 220 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 221 "0441 VPD not present on adapter, " 222 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 223 mb->mbxCommand, mb->mbxStatus); 224 mb->un.varDmp.word_cnt = 0; 225 } 226 /* dump mem may return a zero when finished or we got a 227 * mailbox error, either way we are done. 228 */ 229 if (mb->un.varDmp.word_cnt == 0) 230 break; 231 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 232 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 233 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 234 lpfc_vpd_data + offset, 235 mb->un.varDmp.word_cnt); 236 offset += mb->un.varDmp.word_cnt; 237 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 238 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 239 240 kfree(lpfc_vpd_data); 241 out_free_mbox: 242 mempool_free(pmb, phba->mbox_mem_pool); 243 return 0; 244 } 245 246 /** 247 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 248 * @phba: pointer to lpfc hba data structure. 249 * @pmboxq: pointer to the driver internal queue element for mailbox command. 250 * 251 * This is the completion handler for driver's configuring asynchronous event 252 * mailbox command to the device. If the mailbox command returns successfully, 253 * it will set internal async event support flag to 1; otherwise, it will 254 * set internal async event support flag to 0. 255 **/ 256 static void 257 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 258 { 259 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 260 phba->temp_sensor_support = 1; 261 else 262 phba->temp_sensor_support = 0; 263 mempool_free(pmboxq, phba->mbox_mem_pool); 264 return; 265 } 266 267 /** 268 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 269 * @phba: pointer to lpfc hba data structure. 270 * @pmboxq: pointer to the driver internal queue element for mailbox command. 271 * 272 * This is the completion handler for dump mailbox command for getting 273 * wake up parameters. When this command complete, the response contain 274 * Option rom version of the HBA. This function translate the version number 275 * into a human readable string and store it in OptionROMVersion. 276 **/ 277 static void 278 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 279 { 280 struct prog_id *prg; 281 uint32_t prog_id_word; 282 char dist = ' '; 283 /* character array used for decoding dist type. */ 284 char dist_char[] = "nabx"; 285 286 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 287 mempool_free(pmboxq, phba->mbox_mem_pool); 288 return; 289 } 290 291 prg = (struct prog_id *) &prog_id_word; 292 293 /* word 7 contain option rom version */ 294 prog_id_word = pmboxq->u.mb.un.varWords[7]; 295 296 /* Decode the Option rom version word to a readable string */ 297 if (prg->dist < 4) 298 dist = dist_char[prg->dist]; 299 300 if ((prg->dist == 3) && (prg->num == 0)) 301 sprintf(phba->OptionROMVersion, "%d.%d%d", 302 prg->ver, prg->rev, prg->lev); 303 else 304 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 305 prg->ver, prg->rev, prg->lev, 306 dist, prg->num); 307 mempool_free(pmboxq, phba->mbox_mem_pool); 308 return; 309 } 310 311 /** 312 * lpfc_config_port_post - Perform lpfc initialization after config port 313 * @phba: pointer to lpfc hba data structure. 314 * 315 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 316 * command call. It performs all internal resource and state setups on the 317 * port: post IOCB buffers, enable appropriate host interrupt attentions, 318 * ELS ring timers, etc. 319 * 320 * Return codes 321 * 0 - success. 322 * Any other value - error. 323 **/ 324 int 325 lpfc_config_port_post(struct lpfc_hba *phba) 326 { 327 struct lpfc_vport *vport = phba->pport; 328 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 329 LPFC_MBOXQ_t *pmb; 330 MAILBOX_t *mb; 331 struct lpfc_dmabuf *mp; 332 struct lpfc_sli *psli = &phba->sli; 333 uint32_t status, timeout; 334 int i, j; 335 int rc; 336 337 spin_lock_irq(&phba->hbalock); 338 /* 339 * If the Config port completed correctly the HBA is not 340 * over heated any more. 341 */ 342 if (phba->over_temp_state == HBA_OVER_TEMP) 343 phba->over_temp_state = HBA_NORMAL_TEMP; 344 spin_unlock_irq(&phba->hbalock); 345 346 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 347 if (!pmb) { 348 phba->link_state = LPFC_HBA_ERROR; 349 return -ENOMEM; 350 } 351 mb = &pmb->u.mb; 352 353 /* Get login parameters for NID. */ 354 rc = lpfc_read_sparam(phba, pmb, 0); 355 if (rc) { 356 mempool_free(pmb, phba->mbox_mem_pool); 357 return -ENOMEM; 358 } 359 360 pmb->vport = vport; 361 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 362 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 363 "0448 Adapter failed init, mbxCmd x%x " 364 "READ_SPARM mbxStatus x%x\n", 365 mb->mbxCommand, mb->mbxStatus); 366 phba->link_state = LPFC_HBA_ERROR; 367 mp = (struct lpfc_dmabuf *) pmb->context1; 368 mempool_free(pmb, phba->mbox_mem_pool); 369 lpfc_mbuf_free(phba, mp->virt, mp->phys); 370 kfree(mp); 371 return -EIO; 372 } 373 374 mp = (struct lpfc_dmabuf *) pmb->context1; 375 376 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 377 lpfc_mbuf_free(phba, mp->virt, mp->phys); 378 kfree(mp); 379 pmb->context1 = NULL; 380 381 if (phba->cfg_soft_wwnn) 382 u64_to_wwn(phba->cfg_soft_wwnn, 383 vport->fc_sparam.nodeName.u.wwn); 384 if (phba->cfg_soft_wwpn) 385 u64_to_wwn(phba->cfg_soft_wwpn, 386 vport->fc_sparam.portName.u.wwn); 387 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 388 sizeof (struct lpfc_name)); 389 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 390 sizeof (struct lpfc_name)); 391 392 /* Update the fc_host data structures with new wwn. */ 393 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 394 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 395 fc_host_max_npiv_vports(shost) = phba->max_vpi; 396 397 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 398 /* This should be consolidated into parse_vpd ? - mr */ 399 if (phba->SerialNumber[0] == 0) { 400 uint8_t *outptr; 401 402 outptr = &vport->fc_nodename.u.s.IEEE[0]; 403 for (i = 0; i < 12; i++) { 404 status = *outptr++; 405 j = ((status & 0xf0) >> 4); 406 if (j <= 9) 407 phba->SerialNumber[i] = 408 (char)((uint8_t) 0x30 + (uint8_t) j); 409 else 410 phba->SerialNumber[i] = 411 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 412 i++; 413 j = (status & 0xf); 414 if (j <= 9) 415 phba->SerialNumber[i] = 416 (char)((uint8_t) 0x30 + (uint8_t) j); 417 else 418 phba->SerialNumber[i] = 419 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 420 } 421 } 422 423 lpfc_read_config(phba, pmb); 424 pmb->vport = vport; 425 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 426 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 427 "0453 Adapter failed to init, mbxCmd x%x " 428 "READ_CONFIG, mbxStatus x%x\n", 429 mb->mbxCommand, mb->mbxStatus); 430 phba->link_state = LPFC_HBA_ERROR; 431 mempool_free( pmb, phba->mbox_mem_pool); 432 return -EIO; 433 } 434 435 /* Check if the port is disabled */ 436 lpfc_sli_read_link_ste(phba); 437 438 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 439 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 440 phba->cfg_hba_queue_depth = 441 (mb->un.varRdConfig.max_xri + 1) - 442 lpfc_sli4_get_els_iocb_cnt(phba); 443 444 phba->lmt = mb->un.varRdConfig.lmt; 445 446 /* Get the default values for Model Name and Description */ 447 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 448 449 if ((phba->cfg_link_speed > LINK_SPEED_10G) 450 || ((phba->cfg_link_speed == LINK_SPEED_1G) 451 && !(phba->lmt & LMT_1Gb)) 452 || ((phba->cfg_link_speed == LINK_SPEED_2G) 453 && !(phba->lmt & LMT_2Gb)) 454 || ((phba->cfg_link_speed == LINK_SPEED_4G) 455 && !(phba->lmt & LMT_4Gb)) 456 || ((phba->cfg_link_speed == LINK_SPEED_8G) 457 && !(phba->lmt & LMT_8Gb)) 458 || ((phba->cfg_link_speed == LINK_SPEED_10G) 459 && !(phba->lmt & LMT_10Gb))) { 460 /* Reset link speed to auto */ 461 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT, 462 "1302 Invalid speed for this board: " 463 "Reset link speed to auto: x%x\n", 464 phba->cfg_link_speed); 465 phba->cfg_link_speed = LINK_SPEED_AUTO; 466 } 467 468 phba->link_state = LPFC_LINK_DOWN; 469 470 /* Only process IOCBs on ELS ring till hba_state is READY */ 471 if (psli->ring[psli->extra_ring].cmdringaddr) 472 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 473 if (psli->ring[psli->fcp_ring].cmdringaddr) 474 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 475 if (psli->ring[psli->next_ring].cmdringaddr) 476 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 477 478 /* Post receive buffers for desired rings */ 479 if (phba->sli_rev != 3) 480 lpfc_post_rcv_buf(phba); 481 482 /* 483 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 484 */ 485 if (phba->intr_type == MSIX) { 486 rc = lpfc_config_msi(phba, pmb); 487 if (rc) { 488 mempool_free(pmb, phba->mbox_mem_pool); 489 return -EIO; 490 } 491 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 492 if (rc != MBX_SUCCESS) { 493 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 494 "0352 Config MSI mailbox command " 495 "failed, mbxCmd x%x, mbxStatus x%x\n", 496 pmb->u.mb.mbxCommand, 497 pmb->u.mb.mbxStatus); 498 mempool_free(pmb, phba->mbox_mem_pool); 499 return -EIO; 500 } 501 } 502 503 spin_lock_irq(&phba->hbalock); 504 /* Initialize ERATT handling flag */ 505 phba->hba_flag &= ~HBA_ERATT_HANDLED; 506 507 /* Enable appropriate host interrupts */ 508 status = readl(phba->HCregaddr); 509 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 510 if (psli->num_rings > 0) 511 status |= HC_R0INT_ENA; 512 if (psli->num_rings > 1) 513 status |= HC_R1INT_ENA; 514 if (psli->num_rings > 2) 515 status |= HC_R2INT_ENA; 516 if (psli->num_rings > 3) 517 status |= HC_R3INT_ENA; 518 519 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 520 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 521 status &= ~(HC_R0INT_ENA); 522 523 writel(status, phba->HCregaddr); 524 readl(phba->HCregaddr); /* flush */ 525 spin_unlock_irq(&phba->hbalock); 526 527 /* Set up ring-0 (ELS) timer */ 528 timeout = phba->fc_ratov * 2; 529 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 530 /* Set up heart beat (HB) timer */ 531 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 532 phba->hb_outstanding = 0; 533 phba->last_completion_time = jiffies; 534 /* Set up error attention (ERATT) polling timer */ 535 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 536 537 if (phba->hba_flag & LINK_DISABLED) { 538 lpfc_printf_log(phba, 539 KERN_ERR, LOG_INIT, 540 "2598 Adapter Link is disabled.\n"); 541 lpfc_down_link(phba, pmb); 542 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 543 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 544 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 545 lpfc_printf_log(phba, 546 KERN_ERR, LOG_INIT, 547 "2599 Adapter failed to issue DOWN_LINK" 548 " mbox command rc 0x%x\n", rc); 549 550 mempool_free(pmb, phba->mbox_mem_pool); 551 return -EIO; 552 } 553 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 554 lpfc_init_link(phba, pmb, phba->cfg_topology, 555 phba->cfg_link_speed); 556 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 557 lpfc_set_loopback_flag(phba); 558 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 559 if (rc != MBX_SUCCESS) { 560 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 561 "0454 Adapter failed to init, mbxCmd x%x " 562 "INIT_LINK, mbxStatus x%x\n", 563 mb->mbxCommand, mb->mbxStatus); 564 565 /* Clear all interrupt enable conditions */ 566 writel(0, phba->HCregaddr); 567 readl(phba->HCregaddr); /* flush */ 568 /* Clear all pending interrupts */ 569 writel(0xffffffff, phba->HAregaddr); 570 readl(phba->HAregaddr); /* flush */ 571 572 phba->link_state = LPFC_HBA_ERROR; 573 if (rc != MBX_BUSY) 574 mempool_free(pmb, phba->mbox_mem_pool); 575 return -EIO; 576 } 577 } 578 /* MBOX buffer will be freed in mbox compl */ 579 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 580 if (!pmb) { 581 phba->link_state = LPFC_HBA_ERROR; 582 return -ENOMEM; 583 } 584 585 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 586 pmb->mbox_cmpl = lpfc_config_async_cmpl; 587 pmb->vport = phba->pport; 588 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 589 590 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 591 lpfc_printf_log(phba, 592 KERN_ERR, 593 LOG_INIT, 594 "0456 Adapter failed to issue " 595 "ASYNCEVT_ENABLE mbox status x%x\n", 596 rc); 597 mempool_free(pmb, phba->mbox_mem_pool); 598 } 599 600 /* Get Option rom version */ 601 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 602 if (!pmb) { 603 phba->link_state = LPFC_HBA_ERROR; 604 return -ENOMEM; 605 } 606 607 lpfc_dump_wakeup_param(phba, pmb); 608 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 609 pmb->vport = phba->pport; 610 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 611 612 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 613 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 614 "to get Option ROM version status x%x\n", rc); 615 mempool_free(pmb, phba->mbox_mem_pool); 616 } 617 618 return 0; 619 } 620 621 /** 622 * lpfc_hba_init_link - Initialize the FC link 623 * @phba: pointer to lpfc hba data structure. 624 * 625 * This routine will issue the INIT_LINK mailbox command call. 626 * It is available to other drivers through the lpfc_hba data 627 * structure for use as a delayed link up mechanism with the 628 * module parameter lpfc_suppress_link_up. 629 * 630 * Return code 631 * 0 - success 632 * Any other value - error 633 **/ 634 int 635 lpfc_hba_init_link(struct lpfc_hba *phba) 636 { 637 struct lpfc_vport *vport = phba->pport; 638 LPFC_MBOXQ_t *pmb; 639 MAILBOX_t *mb; 640 int rc; 641 642 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 643 if (!pmb) { 644 phba->link_state = LPFC_HBA_ERROR; 645 return -ENOMEM; 646 } 647 mb = &pmb->u.mb; 648 pmb->vport = vport; 649 650 lpfc_init_link(phba, pmb, phba->cfg_topology, 651 phba->cfg_link_speed); 652 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 653 lpfc_set_loopback_flag(phba); 654 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 655 if (rc != MBX_SUCCESS) { 656 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 657 "0498 Adapter failed to init, mbxCmd x%x " 658 "INIT_LINK, mbxStatus x%x\n", 659 mb->mbxCommand, mb->mbxStatus); 660 /* Clear all interrupt enable conditions */ 661 writel(0, phba->HCregaddr); 662 readl(phba->HCregaddr); /* flush */ 663 /* Clear all pending interrupts */ 664 writel(0xffffffff, phba->HAregaddr); 665 readl(phba->HAregaddr); /* flush */ 666 phba->link_state = LPFC_HBA_ERROR; 667 if (rc != MBX_BUSY) 668 mempool_free(pmb, phba->mbox_mem_pool); 669 return -EIO; 670 } 671 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 672 673 return 0; 674 } 675 676 /** 677 * lpfc_hba_down_link - this routine downs the FC link 678 * 679 * This routine will issue the DOWN_LINK mailbox command call. 680 * It is available to other drivers through the lpfc_hba data 681 * structure for use to stop the link. 682 * 683 * Return code 684 * 0 - success 685 * Any other value - error 686 **/ 687 int 688 lpfc_hba_down_link(struct lpfc_hba *phba) 689 { 690 LPFC_MBOXQ_t *pmb; 691 int rc; 692 693 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 694 if (!pmb) { 695 phba->link_state = LPFC_HBA_ERROR; 696 return -ENOMEM; 697 } 698 699 lpfc_printf_log(phba, 700 KERN_ERR, LOG_INIT, 701 "0491 Adapter Link is disabled.\n"); 702 lpfc_down_link(phba, pmb); 703 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 704 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 705 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 706 lpfc_printf_log(phba, 707 KERN_ERR, LOG_INIT, 708 "2522 Adapter failed to issue DOWN_LINK" 709 " mbox command rc 0x%x\n", rc); 710 711 mempool_free(pmb, phba->mbox_mem_pool); 712 return -EIO; 713 } 714 return 0; 715 } 716 717 /** 718 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 719 * @phba: pointer to lpfc HBA data structure. 720 * 721 * This routine will do LPFC uninitialization before the HBA is reset when 722 * bringing down the SLI Layer. 723 * 724 * Return codes 725 * 0 - success. 726 * Any other value - error. 727 **/ 728 int 729 lpfc_hba_down_prep(struct lpfc_hba *phba) 730 { 731 struct lpfc_vport **vports; 732 int i; 733 734 if (phba->sli_rev <= LPFC_SLI_REV3) { 735 /* Disable interrupts */ 736 writel(0, phba->HCregaddr); 737 readl(phba->HCregaddr); /* flush */ 738 } 739 740 if (phba->pport->load_flag & FC_UNLOADING) 741 lpfc_cleanup_discovery_resources(phba->pport); 742 else { 743 vports = lpfc_create_vport_work_array(phba); 744 if (vports != NULL) 745 for (i = 0; i <= phba->max_vports && 746 vports[i] != NULL; i++) 747 lpfc_cleanup_discovery_resources(vports[i]); 748 lpfc_destroy_vport_work_array(phba, vports); 749 } 750 return 0; 751 } 752 753 /** 754 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 755 * @phba: pointer to lpfc HBA data structure. 756 * 757 * This routine will do uninitialization after the HBA is reset when bring 758 * down the SLI Layer. 759 * 760 * Return codes 761 * 0 - success. 762 * Any other value - error. 763 **/ 764 static int 765 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 766 { 767 struct lpfc_sli *psli = &phba->sli; 768 struct lpfc_sli_ring *pring; 769 struct lpfc_dmabuf *mp, *next_mp; 770 LIST_HEAD(completions); 771 int i; 772 773 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 774 lpfc_sli_hbqbuf_free_all(phba); 775 else { 776 /* Cleanup preposted buffers on the ELS ring */ 777 pring = &psli->ring[LPFC_ELS_RING]; 778 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 779 list_del(&mp->list); 780 pring->postbufq_cnt--; 781 lpfc_mbuf_free(phba, mp->virt, mp->phys); 782 kfree(mp); 783 } 784 } 785 786 spin_lock_irq(&phba->hbalock); 787 for (i = 0; i < psli->num_rings; i++) { 788 pring = &psli->ring[i]; 789 790 /* At this point in time the HBA is either reset or DOA. Either 791 * way, nothing should be on txcmplq as it will NEVER complete. 792 */ 793 list_splice_init(&pring->txcmplq, &completions); 794 pring->txcmplq_cnt = 0; 795 spin_unlock_irq(&phba->hbalock); 796 797 /* Cancel all the IOCBs from the completions list */ 798 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 799 IOERR_SLI_ABORTED); 800 801 lpfc_sli_abort_iocb_ring(phba, pring); 802 spin_lock_irq(&phba->hbalock); 803 } 804 spin_unlock_irq(&phba->hbalock); 805 806 return 0; 807 } 808 /** 809 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 810 * @phba: pointer to lpfc HBA data structure. 811 * 812 * This routine will do uninitialization after the HBA is reset when bring 813 * down the SLI Layer. 814 * 815 * Return codes 816 * 0 - success. 817 * Any other value - error. 818 **/ 819 static int 820 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 821 { 822 struct lpfc_scsi_buf *psb, *psb_next; 823 LIST_HEAD(aborts); 824 int ret; 825 unsigned long iflag = 0; 826 struct lpfc_sglq *sglq_entry = NULL; 827 828 ret = lpfc_hba_down_post_s3(phba); 829 if (ret) 830 return ret; 831 /* At this point in time the HBA is either reset or DOA. Either 832 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 833 * on the lpfc_sgl_list so that it can either be freed if the 834 * driver is unloading or reposted if the driver is restarting 835 * the port. 836 */ 837 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 838 /* scsl_buf_list */ 839 /* abts_sgl_list_lock required because worker thread uses this 840 * list. 841 */ 842 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 843 list_for_each_entry(sglq_entry, 844 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 845 sglq_entry->state = SGL_FREED; 846 847 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 848 &phba->sli4_hba.lpfc_sgl_list); 849 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 850 /* abts_scsi_buf_list_lock required because worker thread uses this 851 * list. 852 */ 853 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 854 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 855 &aborts); 856 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 857 spin_unlock_irq(&phba->hbalock); 858 859 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 860 psb->pCmd = NULL; 861 psb->status = IOSTAT_SUCCESS; 862 } 863 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 864 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 865 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 866 return 0; 867 } 868 869 /** 870 * lpfc_hba_down_post - Wrapper func for hba down post routine 871 * @phba: pointer to lpfc HBA data structure. 872 * 873 * This routine wraps the actual SLI3 or SLI4 routine for performing 874 * uninitialization after the HBA is reset when bring down the SLI Layer. 875 * 876 * Return codes 877 * 0 - success. 878 * Any other value - error. 879 **/ 880 int 881 lpfc_hba_down_post(struct lpfc_hba *phba) 882 { 883 return (*phba->lpfc_hba_down_post)(phba); 884 } 885 886 /** 887 * lpfc_hb_timeout - The HBA-timer timeout handler 888 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 889 * 890 * This is the HBA-timer timeout handler registered to the lpfc driver. When 891 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 892 * work-port-events bitmap and the worker thread is notified. This timeout 893 * event will be used by the worker thread to invoke the actual timeout 894 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 895 * be performed in the timeout handler and the HBA timeout event bit shall 896 * be cleared by the worker thread after it has taken the event bitmap out. 897 **/ 898 static void 899 lpfc_hb_timeout(unsigned long ptr) 900 { 901 struct lpfc_hba *phba; 902 uint32_t tmo_posted; 903 unsigned long iflag; 904 905 phba = (struct lpfc_hba *)ptr; 906 907 /* Check for heart beat timeout conditions */ 908 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 909 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 910 if (!tmo_posted) 911 phba->pport->work_port_events |= WORKER_HB_TMO; 912 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 913 914 /* Tell the worker thread there is work to do */ 915 if (!tmo_posted) 916 lpfc_worker_wake_up(phba); 917 return; 918 } 919 920 /** 921 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 922 * @phba: pointer to lpfc hba data structure. 923 * @pmboxq: pointer to the driver internal queue element for mailbox command. 924 * 925 * This is the callback function to the lpfc heart-beat mailbox command. 926 * If configured, the lpfc driver issues the heart-beat mailbox command to 927 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 928 * heart-beat mailbox command is issued, the driver shall set up heart-beat 929 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 930 * heart-beat outstanding state. Once the mailbox command comes back and 931 * no error conditions detected, the heart-beat mailbox command timer is 932 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 933 * state is cleared for the next heart-beat. If the timer expired with the 934 * heart-beat outstanding state set, the driver will put the HBA offline. 935 **/ 936 static void 937 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 938 { 939 unsigned long drvr_flag; 940 941 spin_lock_irqsave(&phba->hbalock, drvr_flag); 942 phba->hb_outstanding = 0; 943 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 944 945 /* Check and reset heart-beat timer is necessary */ 946 mempool_free(pmboxq, phba->mbox_mem_pool); 947 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 948 !(phba->link_state == LPFC_HBA_ERROR) && 949 !(phba->pport->load_flag & FC_UNLOADING)) 950 mod_timer(&phba->hb_tmofunc, 951 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 952 return; 953 } 954 955 /** 956 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 957 * @phba: pointer to lpfc hba data structure. 958 * 959 * This is the actual HBA-timer timeout handler to be invoked by the worker 960 * thread whenever the HBA timer fired and HBA-timeout event posted. This 961 * handler performs any periodic operations needed for the device. If such 962 * periodic event has already been attended to either in the interrupt handler 963 * or by processing slow-ring or fast-ring events within the HBA-timer 964 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 965 * the timer for the next timeout period. If lpfc heart-beat mailbox command 966 * is configured and there is no heart-beat mailbox command outstanding, a 967 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 968 * has been a heart-beat mailbox command outstanding, the HBA shall be put 969 * to offline. 970 **/ 971 void 972 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 973 { 974 struct lpfc_vport **vports; 975 LPFC_MBOXQ_t *pmboxq; 976 struct lpfc_dmabuf *buf_ptr; 977 int retval, i; 978 struct lpfc_sli *psli = &phba->sli; 979 LIST_HEAD(completions); 980 981 vports = lpfc_create_vport_work_array(phba); 982 if (vports != NULL) 983 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 984 lpfc_rcv_seq_check_edtov(vports[i]); 985 lpfc_destroy_vport_work_array(phba, vports); 986 987 if ((phba->link_state == LPFC_HBA_ERROR) || 988 (phba->pport->load_flag & FC_UNLOADING) || 989 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 990 return; 991 992 spin_lock_irq(&phba->pport->work_port_lock); 993 994 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 995 jiffies)) { 996 spin_unlock_irq(&phba->pport->work_port_lock); 997 if (!phba->hb_outstanding) 998 mod_timer(&phba->hb_tmofunc, 999 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1000 else 1001 mod_timer(&phba->hb_tmofunc, 1002 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1003 return; 1004 } 1005 spin_unlock_irq(&phba->pport->work_port_lock); 1006 1007 if (phba->elsbuf_cnt && 1008 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1009 spin_lock_irq(&phba->hbalock); 1010 list_splice_init(&phba->elsbuf, &completions); 1011 phba->elsbuf_cnt = 0; 1012 phba->elsbuf_prev_cnt = 0; 1013 spin_unlock_irq(&phba->hbalock); 1014 1015 while (!list_empty(&completions)) { 1016 list_remove_head(&completions, buf_ptr, 1017 struct lpfc_dmabuf, list); 1018 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1019 kfree(buf_ptr); 1020 } 1021 } 1022 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1023 1024 /* If there is no heart beat outstanding, issue a heartbeat command */ 1025 if (phba->cfg_enable_hba_heartbeat) { 1026 if (!phba->hb_outstanding) { 1027 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 1028 if (!pmboxq) { 1029 mod_timer(&phba->hb_tmofunc, 1030 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1031 return; 1032 } 1033 1034 lpfc_heart_beat(phba, pmboxq); 1035 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1036 pmboxq->vport = phba->pport; 1037 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); 1038 1039 if (retval != MBX_BUSY && retval != MBX_SUCCESS) { 1040 mempool_free(pmboxq, phba->mbox_mem_pool); 1041 mod_timer(&phba->hb_tmofunc, 1042 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1043 return; 1044 } 1045 mod_timer(&phba->hb_tmofunc, 1046 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1047 phba->hb_outstanding = 1; 1048 return; 1049 } else { 1050 /* 1051 * If heart beat timeout called with hb_outstanding set 1052 * we need to take the HBA offline. 1053 */ 1054 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1055 "0459 Adapter heartbeat failure, " 1056 "taking this port offline.\n"); 1057 1058 spin_lock_irq(&phba->hbalock); 1059 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1060 spin_unlock_irq(&phba->hbalock); 1061 1062 lpfc_offline_prep(phba); 1063 lpfc_offline(phba); 1064 lpfc_unblock_mgmt_io(phba); 1065 phba->link_state = LPFC_HBA_ERROR; 1066 lpfc_hba_down_post(phba); 1067 } 1068 } 1069 } 1070 1071 /** 1072 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1073 * @phba: pointer to lpfc hba data structure. 1074 * 1075 * This routine is called to bring the HBA offline when HBA hardware error 1076 * other than Port Error 6 has been detected. 1077 **/ 1078 static void 1079 lpfc_offline_eratt(struct lpfc_hba *phba) 1080 { 1081 struct lpfc_sli *psli = &phba->sli; 1082 1083 spin_lock_irq(&phba->hbalock); 1084 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1085 spin_unlock_irq(&phba->hbalock); 1086 lpfc_offline_prep(phba); 1087 1088 lpfc_offline(phba); 1089 lpfc_reset_barrier(phba); 1090 spin_lock_irq(&phba->hbalock); 1091 lpfc_sli_brdreset(phba); 1092 spin_unlock_irq(&phba->hbalock); 1093 lpfc_hba_down_post(phba); 1094 lpfc_sli_brdready(phba, HS_MBRDY); 1095 lpfc_unblock_mgmt_io(phba); 1096 phba->link_state = LPFC_HBA_ERROR; 1097 return; 1098 } 1099 1100 /** 1101 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1102 * @phba: pointer to lpfc hba data structure. 1103 * 1104 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1105 * other than Port Error 6 has been detected. 1106 **/ 1107 static void 1108 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1109 { 1110 lpfc_offline_prep(phba); 1111 lpfc_offline(phba); 1112 lpfc_sli4_brdreset(phba); 1113 lpfc_hba_down_post(phba); 1114 lpfc_sli4_post_status_check(phba); 1115 lpfc_unblock_mgmt_io(phba); 1116 phba->link_state = LPFC_HBA_ERROR; 1117 } 1118 1119 /** 1120 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1121 * @phba: pointer to lpfc hba data structure. 1122 * 1123 * This routine is invoked to handle the deferred HBA hardware error 1124 * conditions. This type of error is indicated by HBA by setting ER1 1125 * and another ER bit in the host status register. The driver will 1126 * wait until the ER1 bit clears before handling the error condition. 1127 **/ 1128 static void 1129 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1130 { 1131 uint32_t old_host_status = phba->work_hs; 1132 struct lpfc_sli_ring *pring; 1133 struct lpfc_sli *psli = &phba->sli; 1134 1135 /* If the pci channel is offline, ignore possible errors, 1136 * since we cannot communicate with the pci card anyway. 1137 */ 1138 if (pci_channel_offline(phba->pcidev)) { 1139 spin_lock_irq(&phba->hbalock); 1140 phba->hba_flag &= ~DEFER_ERATT; 1141 spin_unlock_irq(&phba->hbalock); 1142 return; 1143 } 1144 1145 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1146 "0479 Deferred Adapter Hardware Error " 1147 "Data: x%x x%x x%x\n", 1148 phba->work_hs, 1149 phba->work_status[0], phba->work_status[1]); 1150 1151 spin_lock_irq(&phba->hbalock); 1152 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1153 spin_unlock_irq(&phba->hbalock); 1154 1155 1156 /* 1157 * Firmware stops when it triggred erratt. That could cause the I/Os 1158 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1159 * SCSI layer retry it after re-establishing link. 1160 */ 1161 pring = &psli->ring[psli->fcp_ring]; 1162 lpfc_sli_abort_iocb_ring(phba, pring); 1163 1164 /* 1165 * There was a firmware error. Take the hba offline and then 1166 * attempt to restart it. 1167 */ 1168 lpfc_offline_prep(phba); 1169 lpfc_offline(phba); 1170 1171 /* Wait for the ER1 bit to clear.*/ 1172 while (phba->work_hs & HS_FFER1) { 1173 msleep(100); 1174 phba->work_hs = readl(phba->HSregaddr); 1175 /* If driver is unloading let the worker thread continue */ 1176 if (phba->pport->load_flag & FC_UNLOADING) { 1177 phba->work_hs = 0; 1178 break; 1179 } 1180 } 1181 1182 /* 1183 * This is to ptrotect against a race condition in which 1184 * first write to the host attention register clear the 1185 * host status register. 1186 */ 1187 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1188 phba->work_hs = old_host_status & ~HS_FFER1; 1189 1190 spin_lock_irq(&phba->hbalock); 1191 phba->hba_flag &= ~DEFER_ERATT; 1192 spin_unlock_irq(&phba->hbalock); 1193 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1194 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1195 } 1196 1197 static void 1198 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1199 { 1200 struct lpfc_board_event_header board_event; 1201 struct Scsi_Host *shost; 1202 1203 board_event.event_type = FC_REG_BOARD_EVENT; 1204 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1205 shost = lpfc_shost_from_vport(phba->pport); 1206 fc_host_post_vendor_event(shost, fc_get_event_number(), 1207 sizeof(board_event), 1208 (char *) &board_event, 1209 LPFC_NL_VENDOR_ID); 1210 } 1211 1212 /** 1213 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1214 * @phba: pointer to lpfc hba data structure. 1215 * 1216 * This routine is invoked to handle the following HBA hardware error 1217 * conditions: 1218 * 1 - HBA error attention interrupt 1219 * 2 - DMA ring index out of range 1220 * 3 - Mailbox command came back as unknown 1221 **/ 1222 static void 1223 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1224 { 1225 struct lpfc_vport *vport = phba->pport; 1226 struct lpfc_sli *psli = &phba->sli; 1227 struct lpfc_sli_ring *pring; 1228 uint32_t event_data; 1229 unsigned long temperature; 1230 struct temp_event temp_event_data; 1231 struct Scsi_Host *shost; 1232 1233 /* If the pci channel is offline, ignore possible errors, 1234 * since we cannot communicate with the pci card anyway. 1235 */ 1236 if (pci_channel_offline(phba->pcidev)) { 1237 spin_lock_irq(&phba->hbalock); 1238 phba->hba_flag &= ~DEFER_ERATT; 1239 spin_unlock_irq(&phba->hbalock); 1240 return; 1241 } 1242 1243 /* If resets are disabled then leave the HBA alone and return */ 1244 if (!phba->cfg_enable_hba_reset) 1245 return; 1246 1247 /* Send an internal error event to mgmt application */ 1248 lpfc_board_errevt_to_mgmt(phba); 1249 1250 if (phba->hba_flag & DEFER_ERATT) 1251 lpfc_handle_deferred_eratt(phba); 1252 1253 if (phba->work_hs & HS_FFER6) { 1254 /* Re-establishing Link */ 1255 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1256 "1301 Re-establishing Link " 1257 "Data: x%x x%x x%x\n", 1258 phba->work_hs, 1259 phba->work_status[0], phba->work_status[1]); 1260 1261 spin_lock_irq(&phba->hbalock); 1262 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1263 spin_unlock_irq(&phba->hbalock); 1264 1265 /* 1266 * Firmware stops when it triggled erratt with HS_FFER6. 1267 * That could cause the I/Os dropped by the firmware. 1268 * Error iocb (I/O) on txcmplq and let the SCSI layer 1269 * retry it after re-establishing link. 1270 */ 1271 pring = &psli->ring[psli->fcp_ring]; 1272 lpfc_sli_abort_iocb_ring(phba, pring); 1273 1274 /* 1275 * There was a firmware error. Take the hba offline and then 1276 * attempt to restart it. 1277 */ 1278 lpfc_offline_prep(phba); 1279 lpfc_offline(phba); 1280 lpfc_sli_brdrestart(phba); 1281 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1282 lpfc_unblock_mgmt_io(phba); 1283 return; 1284 } 1285 lpfc_unblock_mgmt_io(phba); 1286 } else if (phba->work_hs & HS_CRIT_TEMP) { 1287 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1288 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1289 temp_event_data.event_code = LPFC_CRIT_TEMP; 1290 temp_event_data.data = (uint32_t)temperature; 1291 1292 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1293 "0406 Adapter maximum temperature exceeded " 1294 "(%ld), taking this port offline " 1295 "Data: x%x x%x x%x\n", 1296 temperature, phba->work_hs, 1297 phba->work_status[0], phba->work_status[1]); 1298 1299 shost = lpfc_shost_from_vport(phba->pport); 1300 fc_host_post_vendor_event(shost, fc_get_event_number(), 1301 sizeof(temp_event_data), 1302 (char *) &temp_event_data, 1303 SCSI_NL_VID_TYPE_PCI 1304 | PCI_VENDOR_ID_EMULEX); 1305 1306 spin_lock_irq(&phba->hbalock); 1307 phba->over_temp_state = HBA_OVER_TEMP; 1308 spin_unlock_irq(&phba->hbalock); 1309 lpfc_offline_eratt(phba); 1310 1311 } else { 1312 /* The if clause above forces this code path when the status 1313 * failure is a value other than FFER6. Do not call the offline 1314 * twice. This is the adapter hardware error path. 1315 */ 1316 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1317 "0457 Adapter Hardware Error " 1318 "Data: x%x x%x x%x\n", 1319 phba->work_hs, 1320 phba->work_status[0], phba->work_status[1]); 1321 1322 event_data = FC_REG_DUMP_EVENT; 1323 shost = lpfc_shost_from_vport(vport); 1324 fc_host_post_vendor_event(shost, fc_get_event_number(), 1325 sizeof(event_data), (char *) &event_data, 1326 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1327 1328 lpfc_offline_eratt(phba); 1329 } 1330 return; 1331 } 1332 1333 /** 1334 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1335 * @phba: pointer to lpfc hba data structure. 1336 * 1337 * This routine is invoked to handle the SLI4 HBA hardware error attention 1338 * conditions. 1339 **/ 1340 static void 1341 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1342 { 1343 struct lpfc_vport *vport = phba->pport; 1344 uint32_t event_data; 1345 struct Scsi_Host *shost; 1346 1347 /* If the pci channel is offline, ignore possible errors, since 1348 * we cannot communicate with the pci card anyway. 1349 */ 1350 if (pci_channel_offline(phba->pcidev)) 1351 return; 1352 /* If resets are disabled then leave the HBA alone and return */ 1353 if (!phba->cfg_enable_hba_reset) 1354 return; 1355 1356 /* Send an internal error event to mgmt application */ 1357 lpfc_board_errevt_to_mgmt(phba); 1358 1359 /* For now, the actual action for SLI4 device handling is not 1360 * specified yet, just treated it as adaptor hardware failure 1361 */ 1362 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1363 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n", 1364 phba->work_status[0], phba->work_status[1]); 1365 1366 event_data = FC_REG_DUMP_EVENT; 1367 shost = lpfc_shost_from_vport(vport); 1368 fc_host_post_vendor_event(shost, fc_get_event_number(), 1369 sizeof(event_data), (char *) &event_data, 1370 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1371 1372 lpfc_sli4_offline_eratt(phba); 1373 } 1374 1375 /** 1376 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1377 * @phba: pointer to lpfc HBA data structure. 1378 * 1379 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1380 * routine from the API jump table function pointer from the lpfc_hba struct. 1381 * 1382 * Return codes 1383 * 0 - success. 1384 * Any other value - error. 1385 **/ 1386 void 1387 lpfc_handle_eratt(struct lpfc_hba *phba) 1388 { 1389 (*phba->lpfc_handle_eratt)(phba); 1390 } 1391 1392 /** 1393 * lpfc_handle_latt - The HBA link event handler 1394 * @phba: pointer to lpfc hba data structure. 1395 * 1396 * This routine is invoked from the worker thread to handle a HBA host 1397 * attention link event. 1398 **/ 1399 void 1400 lpfc_handle_latt(struct lpfc_hba *phba) 1401 { 1402 struct lpfc_vport *vport = phba->pport; 1403 struct lpfc_sli *psli = &phba->sli; 1404 LPFC_MBOXQ_t *pmb; 1405 volatile uint32_t control; 1406 struct lpfc_dmabuf *mp; 1407 int rc = 0; 1408 1409 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1410 if (!pmb) { 1411 rc = 1; 1412 goto lpfc_handle_latt_err_exit; 1413 } 1414 1415 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1416 if (!mp) { 1417 rc = 2; 1418 goto lpfc_handle_latt_free_pmb; 1419 } 1420 1421 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1422 if (!mp->virt) { 1423 rc = 3; 1424 goto lpfc_handle_latt_free_mp; 1425 } 1426 1427 /* Cleanup any outstanding ELS commands */ 1428 lpfc_els_flush_all_cmd(phba); 1429 1430 psli->slistat.link_event++; 1431 lpfc_read_la(phba, pmb, mp); 1432 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 1433 pmb->vport = vport; 1434 /* Block ELS IOCBs until we have processed this mbox command */ 1435 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1436 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1437 if (rc == MBX_NOT_FINISHED) { 1438 rc = 4; 1439 goto lpfc_handle_latt_free_mbuf; 1440 } 1441 1442 /* Clear Link Attention in HA REG */ 1443 spin_lock_irq(&phba->hbalock); 1444 writel(HA_LATT, phba->HAregaddr); 1445 readl(phba->HAregaddr); /* flush */ 1446 spin_unlock_irq(&phba->hbalock); 1447 1448 return; 1449 1450 lpfc_handle_latt_free_mbuf: 1451 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1452 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1453 lpfc_handle_latt_free_mp: 1454 kfree(mp); 1455 lpfc_handle_latt_free_pmb: 1456 mempool_free(pmb, phba->mbox_mem_pool); 1457 lpfc_handle_latt_err_exit: 1458 /* Enable Link attention interrupts */ 1459 spin_lock_irq(&phba->hbalock); 1460 psli->sli_flag |= LPFC_PROCESS_LA; 1461 control = readl(phba->HCregaddr); 1462 control |= HC_LAINT_ENA; 1463 writel(control, phba->HCregaddr); 1464 readl(phba->HCregaddr); /* flush */ 1465 1466 /* Clear Link Attention in HA REG */ 1467 writel(HA_LATT, phba->HAregaddr); 1468 readl(phba->HAregaddr); /* flush */ 1469 spin_unlock_irq(&phba->hbalock); 1470 lpfc_linkdown(phba); 1471 phba->link_state = LPFC_HBA_ERROR; 1472 1473 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1474 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1475 1476 return; 1477 } 1478 1479 /** 1480 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1481 * @phba: pointer to lpfc hba data structure. 1482 * @vpd: pointer to the vital product data. 1483 * @len: length of the vital product data in bytes. 1484 * 1485 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1486 * an array of characters. In this routine, the ModelName, ProgramType, and 1487 * ModelDesc, etc. fields of the phba data structure will be populated. 1488 * 1489 * Return codes 1490 * 0 - pointer to the VPD passed in is NULL 1491 * 1 - success 1492 **/ 1493 int 1494 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1495 { 1496 uint8_t lenlo, lenhi; 1497 int Length; 1498 int i, j; 1499 int finished = 0; 1500 int index = 0; 1501 1502 if (!vpd) 1503 return 0; 1504 1505 /* Vital Product */ 1506 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1507 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1508 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1509 (uint32_t) vpd[3]); 1510 while (!finished && (index < (len - 4))) { 1511 switch (vpd[index]) { 1512 case 0x82: 1513 case 0x91: 1514 index += 1; 1515 lenlo = vpd[index]; 1516 index += 1; 1517 lenhi = vpd[index]; 1518 index += 1; 1519 i = ((((unsigned short)lenhi) << 8) + lenlo); 1520 index += i; 1521 break; 1522 case 0x90: 1523 index += 1; 1524 lenlo = vpd[index]; 1525 index += 1; 1526 lenhi = vpd[index]; 1527 index += 1; 1528 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1529 if (Length > len - index) 1530 Length = len - index; 1531 while (Length > 0) { 1532 /* Look for Serial Number */ 1533 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1534 index += 2; 1535 i = vpd[index]; 1536 index += 1; 1537 j = 0; 1538 Length -= (3+i); 1539 while(i--) { 1540 phba->SerialNumber[j++] = vpd[index++]; 1541 if (j == 31) 1542 break; 1543 } 1544 phba->SerialNumber[j] = 0; 1545 continue; 1546 } 1547 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1548 phba->vpd_flag |= VPD_MODEL_DESC; 1549 index += 2; 1550 i = vpd[index]; 1551 index += 1; 1552 j = 0; 1553 Length -= (3+i); 1554 while(i--) { 1555 phba->ModelDesc[j++] = vpd[index++]; 1556 if (j == 255) 1557 break; 1558 } 1559 phba->ModelDesc[j] = 0; 1560 continue; 1561 } 1562 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1563 phba->vpd_flag |= VPD_MODEL_NAME; 1564 index += 2; 1565 i = vpd[index]; 1566 index += 1; 1567 j = 0; 1568 Length -= (3+i); 1569 while(i--) { 1570 phba->ModelName[j++] = vpd[index++]; 1571 if (j == 79) 1572 break; 1573 } 1574 phba->ModelName[j] = 0; 1575 continue; 1576 } 1577 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1578 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1579 index += 2; 1580 i = vpd[index]; 1581 index += 1; 1582 j = 0; 1583 Length -= (3+i); 1584 while(i--) { 1585 phba->ProgramType[j++] = vpd[index++]; 1586 if (j == 255) 1587 break; 1588 } 1589 phba->ProgramType[j] = 0; 1590 continue; 1591 } 1592 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1593 phba->vpd_flag |= VPD_PORT; 1594 index += 2; 1595 i = vpd[index]; 1596 index += 1; 1597 j = 0; 1598 Length -= (3+i); 1599 while(i--) { 1600 phba->Port[j++] = vpd[index++]; 1601 if (j == 19) 1602 break; 1603 } 1604 phba->Port[j] = 0; 1605 continue; 1606 } 1607 else { 1608 index += 2; 1609 i = vpd[index]; 1610 index += 1; 1611 index += i; 1612 Length -= (3 + i); 1613 } 1614 } 1615 finished = 0; 1616 break; 1617 case 0x78: 1618 finished = 1; 1619 break; 1620 default: 1621 index ++; 1622 break; 1623 } 1624 } 1625 1626 return(1); 1627 } 1628 1629 /** 1630 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1631 * @phba: pointer to lpfc hba data structure. 1632 * @mdp: pointer to the data structure to hold the derived model name. 1633 * @descp: pointer to the data structure to hold the derived description. 1634 * 1635 * This routine retrieves HBA's description based on its registered PCI device 1636 * ID. The @descp passed into this function points to an array of 256 chars. It 1637 * shall be returned with the model name, maximum speed, and the host bus type. 1638 * The @mdp passed into this function points to an array of 80 chars. When the 1639 * function returns, the @mdp will be filled with the model name. 1640 **/ 1641 static void 1642 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1643 { 1644 lpfc_vpd_t *vp; 1645 uint16_t dev_id = phba->pcidev->device; 1646 int max_speed; 1647 int GE = 0; 1648 int oneConnect = 0; /* default is not a oneConnect */ 1649 struct { 1650 char *name; 1651 char *bus; 1652 char *function; 1653 } m = {"<Unknown>", "", ""}; 1654 1655 if (mdp && mdp[0] != '\0' 1656 && descp && descp[0] != '\0') 1657 return; 1658 1659 if (phba->lmt & LMT_10Gb) 1660 max_speed = 10; 1661 else if (phba->lmt & LMT_8Gb) 1662 max_speed = 8; 1663 else if (phba->lmt & LMT_4Gb) 1664 max_speed = 4; 1665 else if (phba->lmt & LMT_2Gb) 1666 max_speed = 2; 1667 else 1668 max_speed = 1; 1669 1670 vp = &phba->vpd; 1671 1672 switch (dev_id) { 1673 case PCI_DEVICE_ID_FIREFLY: 1674 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1675 break; 1676 case PCI_DEVICE_ID_SUPERFLY: 1677 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1678 m = (typeof(m)){"LP7000", "PCI", 1679 "Fibre Channel Adapter"}; 1680 else 1681 m = (typeof(m)){"LP7000E", "PCI", 1682 "Fibre Channel Adapter"}; 1683 break; 1684 case PCI_DEVICE_ID_DRAGONFLY: 1685 m = (typeof(m)){"LP8000", "PCI", 1686 "Fibre Channel Adapter"}; 1687 break; 1688 case PCI_DEVICE_ID_CENTAUR: 1689 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1690 m = (typeof(m)){"LP9002", "PCI", 1691 "Fibre Channel Adapter"}; 1692 else 1693 m = (typeof(m)){"LP9000", "PCI", 1694 "Fibre Channel Adapter"}; 1695 break; 1696 case PCI_DEVICE_ID_RFLY: 1697 m = (typeof(m)){"LP952", "PCI", 1698 "Fibre Channel Adapter"}; 1699 break; 1700 case PCI_DEVICE_ID_PEGASUS: 1701 m = (typeof(m)){"LP9802", "PCI-X", 1702 "Fibre Channel Adapter"}; 1703 break; 1704 case PCI_DEVICE_ID_THOR: 1705 m = (typeof(m)){"LP10000", "PCI-X", 1706 "Fibre Channel Adapter"}; 1707 break; 1708 case PCI_DEVICE_ID_VIPER: 1709 m = (typeof(m)){"LPX1000", "PCI-X", 1710 "Fibre Channel Adapter"}; 1711 break; 1712 case PCI_DEVICE_ID_PFLY: 1713 m = (typeof(m)){"LP982", "PCI-X", 1714 "Fibre Channel Adapter"}; 1715 break; 1716 case PCI_DEVICE_ID_TFLY: 1717 m = (typeof(m)){"LP1050", "PCI-X", 1718 "Fibre Channel Adapter"}; 1719 break; 1720 case PCI_DEVICE_ID_HELIOS: 1721 m = (typeof(m)){"LP11000", "PCI-X2", 1722 "Fibre Channel Adapter"}; 1723 break; 1724 case PCI_DEVICE_ID_HELIOS_SCSP: 1725 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1726 "Fibre Channel Adapter"}; 1727 break; 1728 case PCI_DEVICE_ID_HELIOS_DCSP: 1729 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1730 "Fibre Channel Adapter"}; 1731 break; 1732 case PCI_DEVICE_ID_NEPTUNE: 1733 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1734 break; 1735 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1736 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1737 break; 1738 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1739 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1740 break; 1741 case PCI_DEVICE_ID_BMID: 1742 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1743 break; 1744 case PCI_DEVICE_ID_BSMB: 1745 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1746 break; 1747 case PCI_DEVICE_ID_ZEPHYR: 1748 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1749 break; 1750 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1751 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1752 break; 1753 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1754 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1755 GE = 1; 1756 break; 1757 case PCI_DEVICE_ID_ZMID: 1758 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1759 break; 1760 case PCI_DEVICE_ID_ZSMB: 1761 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1762 break; 1763 case PCI_DEVICE_ID_LP101: 1764 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1765 break; 1766 case PCI_DEVICE_ID_LP10000S: 1767 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1768 break; 1769 case PCI_DEVICE_ID_LP11000S: 1770 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 1771 break; 1772 case PCI_DEVICE_ID_LPE11000S: 1773 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 1774 break; 1775 case PCI_DEVICE_ID_SAT: 1776 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 1777 break; 1778 case PCI_DEVICE_ID_SAT_MID: 1779 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 1780 break; 1781 case PCI_DEVICE_ID_SAT_SMB: 1782 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 1783 break; 1784 case PCI_DEVICE_ID_SAT_DCSP: 1785 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 1786 break; 1787 case PCI_DEVICE_ID_SAT_SCSP: 1788 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 1789 break; 1790 case PCI_DEVICE_ID_SAT_S: 1791 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 1792 break; 1793 case PCI_DEVICE_ID_HORNET: 1794 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 1795 GE = 1; 1796 break; 1797 case PCI_DEVICE_ID_PROTEUS_VF: 1798 m = (typeof(m)){"LPev12000", "PCIe IOV", 1799 "Fibre Channel Adapter"}; 1800 break; 1801 case PCI_DEVICE_ID_PROTEUS_PF: 1802 m = (typeof(m)){"LPev12000", "PCIe IOV", 1803 "Fibre Channel Adapter"}; 1804 break; 1805 case PCI_DEVICE_ID_PROTEUS_S: 1806 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 1807 "Fibre Channel Adapter"}; 1808 break; 1809 case PCI_DEVICE_ID_TIGERSHARK: 1810 oneConnect = 1; 1811 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 1812 break; 1813 case PCI_DEVICE_ID_TOMCAT: 1814 oneConnect = 1; 1815 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 1816 break; 1817 case PCI_DEVICE_ID_FALCON: 1818 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 1819 "EmulexSecure Fibre"}; 1820 break; 1821 default: 1822 m = (typeof(m)){"Unknown", "", ""}; 1823 break; 1824 } 1825 1826 if (mdp && mdp[0] == '\0') 1827 snprintf(mdp, 79,"%s", m.name); 1828 /* oneConnect hba requires special processing, they are all initiators 1829 * and we put the port number on the end 1830 */ 1831 if (descp && descp[0] == '\0') { 1832 if (oneConnect) 1833 snprintf(descp, 255, 1834 "Emulex OneConnect %s, %s Initiator, Port %s", 1835 m.name, m.function, 1836 phba->Port); 1837 else 1838 snprintf(descp, 255, 1839 "Emulex %s %d%s %s %s", 1840 m.name, max_speed, (GE) ? "GE" : "Gb", 1841 m.bus, m.function); 1842 } 1843 } 1844 1845 /** 1846 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 1847 * @phba: pointer to lpfc hba data structure. 1848 * @pring: pointer to a IOCB ring. 1849 * @cnt: the number of IOCBs to be posted to the IOCB ring. 1850 * 1851 * This routine posts a given number of IOCBs with the associated DMA buffer 1852 * descriptors specified by the cnt argument to the given IOCB ring. 1853 * 1854 * Return codes 1855 * The number of IOCBs NOT able to be posted to the IOCB ring. 1856 **/ 1857 int 1858 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 1859 { 1860 IOCB_t *icmd; 1861 struct lpfc_iocbq *iocb; 1862 struct lpfc_dmabuf *mp1, *mp2; 1863 1864 cnt += pring->missbufcnt; 1865 1866 /* While there are buffers to post */ 1867 while (cnt > 0) { 1868 /* Allocate buffer for command iocb */ 1869 iocb = lpfc_sli_get_iocbq(phba); 1870 if (iocb == NULL) { 1871 pring->missbufcnt = cnt; 1872 return cnt; 1873 } 1874 icmd = &iocb->iocb; 1875 1876 /* 2 buffers can be posted per command */ 1877 /* Allocate buffer to post */ 1878 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1879 if (mp1) 1880 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 1881 if (!mp1 || !mp1->virt) { 1882 kfree(mp1); 1883 lpfc_sli_release_iocbq(phba, iocb); 1884 pring->missbufcnt = cnt; 1885 return cnt; 1886 } 1887 1888 INIT_LIST_HEAD(&mp1->list); 1889 /* Allocate buffer to post */ 1890 if (cnt > 1) { 1891 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1892 if (mp2) 1893 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1894 &mp2->phys); 1895 if (!mp2 || !mp2->virt) { 1896 kfree(mp2); 1897 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1898 kfree(mp1); 1899 lpfc_sli_release_iocbq(phba, iocb); 1900 pring->missbufcnt = cnt; 1901 return cnt; 1902 } 1903 1904 INIT_LIST_HEAD(&mp2->list); 1905 } else { 1906 mp2 = NULL; 1907 } 1908 1909 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1910 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1911 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1912 icmd->ulpBdeCount = 1; 1913 cnt--; 1914 if (mp2) { 1915 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1916 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1917 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1918 cnt--; 1919 icmd->ulpBdeCount = 2; 1920 } 1921 1922 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1923 icmd->ulpLe = 1; 1924 1925 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 1926 IOCB_ERROR) { 1927 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1928 kfree(mp1); 1929 cnt++; 1930 if (mp2) { 1931 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1932 kfree(mp2); 1933 cnt++; 1934 } 1935 lpfc_sli_release_iocbq(phba, iocb); 1936 pring->missbufcnt = cnt; 1937 return cnt; 1938 } 1939 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1940 if (mp2) 1941 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1942 } 1943 pring->missbufcnt = 0; 1944 return 0; 1945 } 1946 1947 /** 1948 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 1949 * @phba: pointer to lpfc hba data structure. 1950 * 1951 * This routine posts initial receive IOCB buffers to the ELS ring. The 1952 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 1953 * set to 64 IOCBs. 1954 * 1955 * Return codes 1956 * 0 - success (currently always success) 1957 **/ 1958 static int 1959 lpfc_post_rcv_buf(struct lpfc_hba *phba) 1960 { 1961 struct lpfc_sli *psli = &phba->sli; 1962 1963 /* Ring 0, ELS / CT buffers */ 1964 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 1965 /* Ring 2 - FCP no buffers needed */ 1966 1967 return 0; 1968 } 1969 1970 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 1971 1972 /** 1973 * lpfc_sha_init - Set up initial array of hash table entries 1974 * @HashResultPointer: pointer to an array as hash table. 1975 * 1976 * This routine sets up the initial values to the array of hash table entries 1977 * for the LC HBAs. 1978 **/ 1979 static void 1980 lpfc_sha_init(uint32_t * HashResultPointer) 1981 { 1982 HashResultPointer[0] = 0x67452301; 1983 HashResultPointer[1] = 0xEFCDAB89; 1984 HashResultPointer[2] = 0x98BADCFE; 1985 HashResultPointer[3] = 0x10325476; 1986 HashResultPointer[4] = 0xC3D2E1F0; 1987 } 1988 1989 /** 1990 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 1991 * @HashResultPointer: pointer to an initial/result hash table. 1992 * @HashWorkingPointer: pointer to an working hash table. 1993 * 1994 * This routine iterates an initial hash table pointed by @HashResultPointer 1995 * with the values from the working hash table pointeed by @HashWorkingPointer. 1996 * The results are putting back to the initial hash table, returned through 1997 * the @HashResultPointer as the result hash table. 1998 **/ 1999 static void 2000 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2001 { 2002 int t; 2003 uint32_t TEMP; 2004 uint32_t A, B, C, D, E; 2005 t = 16; 2006 do { 2007 HashWorkingPointer[t] = 2008 S(1, 2009 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2010 8] ^ 2011 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2012 } while (++t <= 79); 2013 t = 0; 2014 A = HashResultPointer[0]; 2015 B = HashResultPointer[1]; 2016 C = HashResultPointer[2]; 2017 D = HashResultPointer[3]; 2018 E = HashResultPointer[4]; 2019 2020 do { 2021 if (t < 20) { 2022 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2023 } else if (t < 40) { 2024 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2025 } else if (t < 60) { 2026 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2027 } else { 2028 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2029 } 2030 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2031 E = D; 2032 D = C; 2033 C = S(30, B); 2034 B = A; 2035 A = TEMP; 2036 } while (++t <= 79); 2037 2038 HashResultPointer[0] += A; 2039 HashResultPointer[1] += B; 2040 HashResultPointer[2] += C; 2041 HashResultPointer[3] += D; 2042 HashResultPointer[4] += E; 2043 2044 } 2045 2046 /** 2047 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2048 * @RandomChallenge: pointer to the entry of host challenge random number array. 2049 * @HashWorking: pointer to the entry of the working hash array. 2050 * 2051 * This routine calculates the working hash array referred by @HashWorking 2052 * from the challenge random numbers associated with the host, referred by 2053 * @RandomChallenge. The result is put into the entry of the working hash 2054 * array and returned by reference through @HashWorking. 2055 **/ 2056 static void 2057 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2058 { 2059 *HashWorking = (*RandomChallenge ^ *HashWorking); 2060 } 2061 2062 /** 2063 * lpfc_hba_init - Perform special handling for LC HBA initialization 2064 * @phba: pointer to lpfc hba data structure. 2065 * @hbainit: pointer to an array of unsigned 32-bit integers. 2066 * 2067 * This routine performs the special handling for LC HBA initialization. 2068 **/ 2069 void 2070 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2071 { 2072 int t; 2073 uint32_t *HashWorking; 2074 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2075 2076 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2077 if (!HashWorking) 2078 return; 2079 2080 HashWorking[0] = HashWorking[78] = *pwwnn++; 2081 HashWorking[1] = HashWorking[79] = *pwwnn; 2082 2083 for (t = 0; t < 7; t++) 2084 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2085 2086 lpfc_sha_init(hbainit); 2087 lpfc_sha_iterate(hbainit, HashWorking); 2088 kfree(HashWorking); 2089 } 2090 2091 /** 2092 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2093 * @vport: pointer to a virtual N_Port data structure. 2094 * 2095 * This routine performs the necessary cleanups before deleting the @vport. 2096 * It invokes the discovery state machine to perform necessary state 2097 * transitions and to release the ndlps associated with the @vport. Note, 2098 * the physical port is treated as @vport 0. 2099 **/ 2100 void 2101 lpfc_cleanup(struct lpfc_vport *vport) 2102 { 2103 struct lpfc_hba *phba = vport->phba; 2104 struct lpfc_nodelist *ndlp, *next_ndlp; 2105 int i = 0; 2106 2107 if (phba->link_state > LPFC_LINK_DOWN) 2108 lpfc_port_link_failure(vport); 2109 2110 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2111 if (!NLP_CHK_NODE_ACT(ndlp)) { 2112 ndlp = lpfc_enable_node(vport, ndlp, 2113 NLP_STE_UNUSED_NODE); 2114 if (!ndlp) 2115 continue; 2116 spin_lock_irq(&phba->ndlp_lock); 2117 NLP_SET_FREE_REQ(ndlp); 2118 spin_unlock_irq(&phba->ndlp_lock); 2119 /* Trigger the release of the ndlp memory */ 2120 lpfc_nlp_put(ndlp); 2121 continue; 2122 } 2123 spin_lock_irq(&phba->ndlp_lock); 2124 if (NLP_CHK_FREE_REQ(ndlp)) { 2125 /* The ndlp should not be in memory free mode already */ 2126 spin_unlock_irq(&phba->ndlp_lock); 2127 continue; 2128 } else 2129 /* Indicate request for freeing ndlp memory */ 2130 NLP_SET_FREE_REQ(ndlp); 2131 spin_unlock_irq(&phba->ndlp_lock); 2132 2133 if (vport->port_type != LPFC_PHYSICAL_PORT && 2134 ndlp->nlp_DID == Fabric_DID) { 2135 /* Just free up ndlp with Fabric_DID for vports */ 2136 lpfc_nlp_put(ndlp); 2137 continue; 2138 } 2139 2140 if (ndlp->nlp_type & NLP_FABRIC) 2141 lpfc_disc_state_machine(vport, ndlp, NULL, 2142 NLP_EVT_DEVICE_RECOVERY); 2143 2144 lpfc_disc_state_machine(vport, ndlp, NULL, 2145 NLP_EVT_DEVICE_RM); 2146 2147 } 2148 2149 /* At this point, ALL ndlp's should be gone 2150 * because of the previous NLP_EVT_DEVICE_RM. 2151 * Lets wait for this to happen, if needed. 2152 */ 2153 while (!list_empty(&vport->fc_nodes)) { 2154 if (i++ > 3000) { 2155 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2156 "0233 Nodelist not empty\n"); 2157 list_for_each_entry_safe(ndlp, next_ndlp, 2158 &vport->fc_nodes, nlp_listp) { 2159 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2160 LOG_NODE, 2161 "0282 did:x%x ndlp:x%p " 2162 "usgmap:x%x refcnt:%d\n", 2163 ndlp->nlp_DID, (void *)ndlp, 2164 ndlp->nlp_usg_map, 2165 atomic_read( 2166 &ndlp->kref.refcount)); 2167 } 2168 break; 2169 } 2170 2171 /* Wait for any activity on ndlps to settle */ 2172 msleep(10); 2173 } 2174 } 2175 2176 /** 2177 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2178 * @vport: pointer to a virtual N_Port data structure. 2179 * 2180 * This routine stops all the timers associated with a @vport. This function 2181 * is invoked before disabling or deleting a @vport. Note that the physical 2182 * port is treated as @vport 0. 2183 **/ 2184 void 2185 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2186 { 2187 del_timer_sync(&vport->els_tmofunc); 2188 del_timer_sync(&vport->fc_fdmitmo); 2189 lpfc_can_disctmo(vport); 2190 return; 2191 } 2192 2193 /** 2194 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2195 * @phba: pointer to lpfc hba data structure. 2196 * 2197 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2198 * caller of this routine should already hold the host lock. 2199 **/ 2200 void 2201 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2202 { 2203 /* Clear pending FCF rediscovery wait and failover in progress flags */ 2204 phba->fcf.fcf_flag &= ~(FCF_REDISC_PEND | 2205 FCF_DEAD_DISC | 2206 FCF_ACVL_DISC); 2207 /* Now, try to stop the timer */ 2208 del_timer(&phba->fcf.redisc_wait); 2209 } 2210 2211 /** 2212 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2213 * @phba: pointer to lpfc hba data structure. 2214 * 2215 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2216 * checks whether the FCF rediscovery wait timer is pending with the host 2217 * lock held before proceeding with disabling the timer and clearing the 2218 * wait timer pendig flag. 2219 **/ 2220 void 2221 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2222 { 2223 spin_lock_irq(&phba->hbalock); 2224 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2225 /* FCF rediscovery timer already fired or stopped */ 2226 spin_unlock_irq(&phba->hbalock); 2227 return; 2228 } 2229 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2230 spin_unlock_irq(&phba->hbalock); 2231 } 2232 2233 /** 2234 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2235 * @phba: pointer to lpfc hba data structure. 2236 * 2237 * This routine stops all the timers associated with a HBA. This function is 2238 * invoked before either putting a HBA offline or unloading the driver. 2239 **/ 2240 void 2241 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2242 { 2243 lpfc_stop_vport_timers(phba->pport); 2244 del_timer_sync(&phba->sli.mbox_tmo); 2245 del_timer_sync(&phba->fabric_block_timer); 2246 del_timer_sync(&phba->eratt_poll); 2247 del_timer_sync(&phba->hb_tmofunc); 2248 phba->hb_outstanding = 0; 2249 2250 switch (phba->pci_dev_grp) { 2251 case LPFC_PCI_DEV_LP: 2252 /* Stop any LightPulse device specific driver timers */ 2253 del_timer_sync(&phba->fcp_poll_timer); 2254 break; 2255 case LPFC_PCI_DEV_OC: 2256 /* Stop any OneConnect device sepcific driver timers */ 2257 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2258 break; 2259 default: 2260 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2261 "0297 Invalid device group (x%x)\n", 2262 phba->pci_dev_grp); 2263 break; 2264 } 2265 return; 2266 } 2267 2268 /** 2269 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2270 * @phba: pointer to lpfc hba data structure. 2271 * 2272 * This routine marks a HBA's management interface as blocked. Once the HBA's 2273 * management interface is marked as blocked, all the user space access to 2274 * the HBA, whether they are from sysfs interface or libdfc interface will 2275 * all be blocked. The HBA is set to block the management interface when the 2276 * driver prepares the HBA interface for online or offline. 2277 **/ 2278 static void 2279 lpfc_block_mgmt_io(struct lpfc_hba * phba) 2280 { 2281 unsigned long iflag; 2282 2283 spin_lock_irqsave(&phba->hbalock, iflag); 2284 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2285 spin_unlock_irqrestore(&phba->hbalock, iflag); 2286 } 2287 2288 /** 2289 * lpfc_online - Initialize and bring a HBA online 2290 * @phba: pointer to lpfc hba data structure. 2291 * 2292 * This routine initializes the HBA and brings a HBA online. During this 2293 * process, the management interface is blocked to prevent user space access 2294 * to the HBA interfering with the driver initialization. 2295 * 2296 * Return codes 2297 * 0 - successful 2298 * 1 - failed 2299 **/ 2300 int 2301 lpfc_online(struct lpfc_hba *phba) 2302 { 2303 struct lpfc_vport *vport; 2304 struct lpfc_vport **vports; 2305 int i; 2306 2307 if (!phba) 2308 return 0; 2309 vport = phba->pport; 2310 2311 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2312 return 0; 2313 2314 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2315 "0458 Bring Adapter online\n"); 2316 2317 lpfc_block_mgmt_io(phba); 2318 2319 if (!lpfc_sli_queue_setup(phba)) { 2320 lpfc_unblock_mgmt_io(phba); 2321 return 1; 2322 } 2323 2324 if (phba->sli_rev == LPFC_SLI_REV4) { 2325 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2326 lpfc_unblock_mgmt_io(phba); 2327 return 1; 2328 } 2329 } else { 2330 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2331 lpfc_unblock_mgmt_io(phba); 2332 return 1; 2333 } 2334 } 2335 2336 vports = lpfc_create_vport_work_array(phba); 2337 if (vports != NULL) 2338 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2339 struct Scsi_Host *shost; 2340 shost = lpfc_shost_from_vport(vports[i]); 2341 spin_lock_irq(shost->host_lock); 2342 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2343 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2344 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2345 if (phba->sli_rev == LPFC_SLI_REV4) 2346 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2347 spin_unlock_irq(shost->host_lock); 2348 } 2349 lpfc_destroy_vport_work_array(phba, vports); 2350 2351 lpfc_unblock_mgmt_io(phba); 2352 return 0; 2353 } 2354 2355 /** 2356 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2357 * @phba: pointer to lpfc hba data structure. 2358 * 2359 * This routine marks a HBA's management interface as not blocked. Once the 2360 * HBA's management interface is marked as not blocked, all the user space 2361 * access to the HBA, whether they are from sysfs interface or libdfc 2362 * interface will be allowed. The HBA is set to block the management interface 2363 * when the driver prepares the HBA interface for online or offline and then 2364 * set to unblock the management interface afterwards. 2365 **/ 2366 void 2367 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2368 { 2369 unsigned long iflag; 2370 2371 spin_lock_irqsave(&phba->hbalock, iflag); 2372 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2373 spin_unlock_irqrestore(&phba->hbalock, iflag); 2374 } 2375 2376 /** 2377 * lpfc_offline_prep - Prepare a HBA to be brought offline 2378 * @phba: pointer to lpfc hba data structure. 2379 * 2380 * This routine is invoked to prepare a HBA to be brought offline. It performs 2381 * unregistration login to all the nodes on all vports and flushes the mailbox 2382 * queue to make it ready to be brought offline. 2383 **/ 2384 void 2385 lpfc_offline_prep(struct lpfc_hba * phba) 2386 { 2387 struct lpfc_vport *vport = phba->pport; 2388 struct lpfc_nodelist *ndlp, *next_ndlp; 2389 struct lpfc_vport **vports; 2390 struct Scsi_Host *shost; 2391 int i; 2392 2393 if (vport->fc_flag & FC_OFFLINE_MODE) 2394 return; 2395 2396 lpfc_block_mgmt_io(phba); 2397 2398 lpfc_linkdown(phba); 2399 2400 /* Issue an unreg_login to all nodes on all vports */ 2401 vports = lpfc_create_vport_work_array(phba); 2402 if (vports != NULL) { 2403 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2404 if (vports[i]->load_flag & FC_UNLOADING) 2405 continue; 2406 shost = lpfc_shost_from_vport(vports[i]); 2407 spin_lock_irq(shost->host_lock); 2408 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2409 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2410 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2411 spin_unlock_irq(shost->host_lock); 2412 2413 shost = lpfc_shost_from_vport(vports[i]); 2414 list_for_each_entry_safe(ndlp, next_ndlp, 2415 &vports[i]->fc_nodes, 2416 nlp_listp) { 2417 if (!NLP_CHK_NODE_ACT(ndlp)) 2418 continue; 2419 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2420 continue; 2421 if (ndlp->nlp_type & NLP_FABRIC) { 2422 lpfc_disc_state_machine(vports[i], ndlp, 2423 NULL, NLP_EVT_DEVICE_RECOVERY); 2424 lpfc_disc_state_machine(vports[i], ndlp, 2425 NULL, NLP_EVT_DEVICE_RM); 2426 } 2427 spin_lock_irq(shost->host_lock); 2428 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2429 spin_unlock_irq(shost->host_lock); 2430 lpfc_unreg_rpi(vports[i], ndlp); 2431 } 2432 } 2433 } 2434 lpfc_destroy_vport_work_array(phba, vports); 2435 2436 lpfc_sli_mbox_sys_shutdown(phba); 2437 } 2438 2439 /** 2440 * lpfc_offline - Bring a HBA offline 2441 * @phba: pointer to lpfc hba data structure. 2442 * 2443 * This routine actually brings a HBA offline. It stops all the timers 2444 * associated with the HBA, brings down the SLI layer, and eventually 2445 * marks the HBA as in offline state for the upper layer protocol. 2446 **/ 2447 void 2448 lpfc_offline(struct lpfc_hba *phba) 2449 { 2450 struct Scsi_Host *shost; 2451 struct lpfc_vport **vports; 2452 int i; 2453 2454 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2455 return; 2456 2457 /* stop port and all timers associated with this hba */ 2458 lpfc_stop_port(phba); 2459 vports = lpfc_create_vport_work_array(phba); 2460 if (vports != NULL) 2461 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2462 lpfc_stop_vport_timers(vports[i]); 2463 lpfc_destroy_vport_work_array(phba, vports); 2464 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2465 "0460 Bring Adapter offline\n"); 2466 /* Bring down the SLI Layer and cleanup. The HBA is offline 2467 now. */ 2468 lpfc_sli_hba_down(phba); 2469 spin_lock_irq(&phba->hbalock); 2470 phba->work_ha = 0; 2471 spin_unlock_irq(&phba->hbalock); 2472 vports = lpfc_create_vport_work_array(phba); 2473 if (vports != NULL) 2474 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2475 shost = lpfc_shost_from_vport(vports[i]); 2476 spin_lock_irq(shost->host_lock); 2477 vports[i]->work_port_events = 0; 2478 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2479 spin_unlock_irq(shost->host_lock); 2480 } 2481 lpfc_destroy_vport_work_array(phba, vports); 2482 } 2483 2484 /** 2485 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2486 * @phba: pointer to lpfc hba data structure. 2487 * 2488 * This routine is to free all the SCSI buffers and IOCBs from the driver 2489 * list back to kernel. It is called from lpfc_pci_remove_one to free 2490 * the internal resources before the device is removed from the system. 2491 * 2492 * Return codes 2493 * 0 - successful (for now, it always returns 0) 2494 **/ 2495 static int 2496 lpfc_scsi_free(struct lpfc_hba *phba) 2497 { 2498 struct lpfc_scsi_buf *sb, *sb_next; 2499 struct lpfc_iocbq *io, *io_next; 2500 2501 spin_lock_irq(&phba->hbalock); 2502 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2503 spin_lock(&phba->scsi_buf_list_lock); 2504 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2505 list_del(&sb->list); 2506 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2507 sb->dma_handle); 2508 kfree(sb); 2509 phba->total_scsi_bufs--; 2510 } 2511 spin_unlock(&phba->scsi_buf_list_lock); 2512 2513 /* Release all the lpfc_iocbq entries maintained by this host. */ 2514 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2515 list_del(&io->list); 2516 kfree(io); 2517 phba->total_iocbq_bufs--; 2518 } 2519 spin_unlock_irq(&phba->hbalock); 2520 return 0; 2521 } 2522 2523 /** 2524 * lpfc_create_port - Create an FC port 2525 * @phba: pointer to lpfc hba data structure. 2526 * @instance: a unique integer ID to this FC port. 2527 * @dev: pointer to the device data structure. 2528 * 2529 * This routine creates a FC port for the upper layer protocol. The FC port 2530 * can be created on top of either a physical port or a virtual port provided 2531 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2532 * and associates the FC port created before adding the shost into the SCSI 2533 * layer. 2534 * 2535 * Return codes 2536 * @vport - pointer to the virtual N_Port data structure. 2537 * NULL - port create failed. 2538 **/ 2539 struct lpfc_vport * 2540 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2541 { 2542 struct lpfc_vport *vport; 2543 struct Scsi_Host *shost; 2544 int error = 0; 2545 2546 if (dev != &phba->pcidev->dev) 2547 shost = scsi_host_alloc(&lpfc_vport_template, 2548 sizeof(struct lpfc_vport)); 2549 else 2550 shost = scsi_host_alloc(&lpfc_template, 2551 sizeof(struct lpfc_vport)); 2552 if (!shost) 2553 goto out; 2554 2555 vport = (struct lpfc_vport *) shost->hostdata; 2556 vport->phba = phba; 2557 vport->load_flag |= FC_LOADING; 2558 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2559 vport->fc_rscn_flush = 0; 2560 2561 lpfc_get_vport_cfgparam(vport); 2562 shost->unique_id = instance; 2563 shost->max_id = LPFC_MAX_TARGET; 2564 shost->max_lun = vport->cfg_max_luns; 2565 shost->this_id = -1; 2566 shost->max_cmd_len = 16; 2567 if (phba->sli_rev == LPFC_SLI_REV4) { 2568 shost->dma_boundary = 2569 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 2570 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2571 } 2572 2573 /* 2574 * Set initial can_queue value since 0 is no longer supported and 2575 * scsi_add_host will fail. This will be adjusted later based on the 2576 * max xri value determined in hba setup. 2577 */ 2578 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2579 if (dev != &phba->pcidev->dev) { 2580 shost->transportt = lpfc_vport_transport_template; 2581 vport->port_type = LPFC_NPIV_PORT; 2582 } else { 2583 shost->transportt = lpfc_transport_template; 2584 vport->port_type = LPFC_PHYSICAL_PORT; 2585 } 2586 2587 /* Initialize all internally managed lists. */ 2588 INIT_LIST_HEAD(&vport->fc_nodes); 2589 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2590 spin_lock_init(&vport->work_port_lock); 2591 2592 init_timer(&vport->fc_disctmo); 2593 vport->fc_disctmo.function = lpfc_disc_timeout; 2594 vport->fc_disctmo.data = (unsigned long)vport; 2595 2596 init_timer(&vport->fc_fdmitmo); 2597 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2598 vport->fc_fdmitmo.data = (unsigned long)vport; 2599 2600 init_timer(&vport->els_tmofunc); 2601 vport->els_tmofunc.function = lpfc_els_timeout; 2602 vport->els_tmofunc.data = (unsigned long)vport; 2603 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 2604 if (error) 2605 goto out_put_shost; 2606 2607 spin_lock_irq(&phba->hbalock); 2608 list_add_tail(&vport->listentry, &phba->port_list); 2609 spin_unlock_irq(&phba->hbalock); 2610 return vport; 2611 2612 out_put_shost: 2613 scsi_host_put(shost); 2614 out: 2615 return NULL; 2616 } 2617 2618 /** 2619 * destroy_port - destroy an FC port 2620 * @vport: pointer to an lpfc virtual N_Port data structure. 2621 * 2622 * This routine destroys a FC port from the upper layer protocol. All the 2623 * resources associated with the port are released. 2624 **/ 2625 void 2626 destroy_port(struct lpfc_vport *vport) 2627 { 2628 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2629 struct lpfc_hba *phba = vport->phba; 2630 2631 lpfc_debugfs_terminate(vport); 2632 fc_remove_host(shost); 2633 scsi_remove_host(shost); 2634 2635 spin_lock_irq(&phba->hbalock); 2636 list_del_init(&vport->listentry); 2637 spin_unlock_irq(&phba->hbalock); 2638 2639 lpfc_cleanup(vport); 2640 return; 2641 } 2642 2643 /** 2644 * lpfc_get_instance - Get a unique integer ID 2645 * 2646 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2647 * uses the kernel idr facility to perform the task. 2648 * 2649 * Return codes: 2650 * instance - a unique integer ID allocated as the new instance. 2651 * -1 - lpfc get instance failed. 2652 **/ 2653 int 2654 lpfc_get_instance(void) 2655 { 2656 int instance = 0; 2657 2658 /* Assign an unused number */ 2659 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2660 return -1; 2661 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2662 return -1; 2663 return instance; 2664 } 2665 2666 /** 2667 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2668 * @shost: pointer to SCSI host data structure. 2669 * @time: elapsed time of the scan in jiffies. 2670 * 2671 * This routine is called by the SCSI layer with a SCSI host to determine 2672 * whether the scan host is finished. 2673 * 2674 * Note: there is no scan_start function as adapter initialization will have 2675 * asynchronously kicked off the link initialization. 2676 * 2677 * Return codes 2678 * 0 - SCSI host scan is not over yet. 2679 * 1 - SCSI host scan is over. 2680 **/ 2681 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2682 { 2683 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2684 struct lpfc_hba *phba = vport->phba; 2685 int stat = 0; 2686 2687 spin_lock_irq(shost->host_lock); 2688 2689 if (vport->load_flag & FC_UNLOADING) { 2690 stat = 1; 2691 goto finished; 2692 } 2693 if (time >= 30 * HZ) { 2694 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2695 "0461 Scanning longer than 30 " 2696 "seconds. Continuing initialization\n"); 2697 stat = 1; 2698 goto finished; 2699 } 2700 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2701 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2702 "0465 Link down longer than 15 " 2703 "seconds. Continuing initialization\n"); 2704 stat = 1; 2705 goto finished; 2706 } 2707 2708 if (vport->port_state != LPFC_VPORT_READY) 2709 goto finished; 2710 if (vport->num_disc_nodes || vport->fc_prli_sent) 2711 goto finished; 2712 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2713 goto finished; 2714 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2715 goto finished; 2716 2717 stat = 1; 2718 2719 finished: 2720 spin_unlock_irq(shost->host_lock); 2721 return stat; 2722 } 2723 2724 /** 2725 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 2726 * @shost: pointer to SCSI host data structure. 2727 * 2728 * This routine initializes a given SCSI host attributes on a FC port. The 2729 * SCSI host can be either on top of a physical port or a virtual port. 2730 **/ 2731 void lpfc_host_attrib_init(struct Scsi_Host *shost) 2732 { 2733 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2734 struct lpfc_hba *phba = vport->phba; 2735 /* 2736 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2737 */ 2738 2739 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2740 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2741 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2742 2743 memset(fc_host_supported_fc4s(shost), 0, 2744 sizeof(fc_host_supported_fc4s(shost))); 2745 fc_host_supported_fc4s(shost)[2] = 1; 2746 fc_host_supported_fc4s(shost)[7] = 1; 2747 2748 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2749 sizeof fc_host_symbolic_name(shost)); 2750 2751 fc_host_supported_speeds(shost) = 0; 2752 if (phba->lmt & LMT_10Gb) 2753 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2754 if (phba->lmt & LMT_8Gb) 2755 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2756 if (phba->lmt & LMT_4Gb) 2757 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2758 if (phba->lmt & LMT_2Gb) 2759 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2760 if (phba->lmt & LMT_1Gb) 2761 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2762 2763 fc_host_maxframe_size(shost) = 2764 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2765 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2766 2767 /* This value is also unchanging */ 2768 memset(fc_host_active_fc4s(shost), 0, 2769 sizeof(fc_host_active_fc4s(shost))); 2770 fc_host_active_fc4s(shost)[2] = 1; 2771 fc_host_active_fc4s(shost)[7] = 1; 2772 2773 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2774 spin_lock_irq(shost->host_lock); 2775 vport->load_flag &= ~FC_LOADING; 2776 spin_unlock_irq(shost->host_lock); 2777 } 2778 2779 /** 2780 * lpfc_stop_port_s3 - Stop SLI3 device port 2781 * @phba: pointer to lpfc hba data structure. 2782 * 2783 * This routine is invoked to stop an SLI3 device port, it stops the device 2784 * from generating interrupts and stops the device driver's timers for the 2785 * device. 2786 **/ 2787 static void 2788 lpfc_stop_port_s3(struct lpfc_hba *phba) 2789 { 2790 /* Clear all interrupt enable conditions */ 2791 writel(0, phba->HCregaddr); 2792 readl(phba->HCregaddr); /* flush */ 2793 /* Clear all pending interrupts */ 2794 writel(0xffffffff, phba->HAregaddr); 2795 readl(phba->HAregaddr); /* flush */ 2796 2797 /* Reset some HBA SLI setup states */ 2798 lpfc_stop_hba_timers(phba); 2799 phba->pport->work_port_events = 0; 2800 } 2801 2802 /** 2803 * lpfc_stop_port_s4 - Stop SLI4 device port 2804 * @phba: pointer to lpfc hba data structure. 2805 * 2806 * This routine is invoked to stop an SLI4 device port, it stops the device 2807 * from generating interrupts and stops the device driver's timers for the 2808 * device. 2809 **/ 2810 static void 2811 lpfc_stop_port_s4(struct lpfc_hba *phba) 2812 { 2813 /* Reset some HBA SLI4 setup states */ 2814 lpfc_stop_hba_timers(phba); 2815 phba->pport->work_port_events = 0; 2816 phba->sli4_hba.intr_enable = 0; 2817 } 2818 2819 /** 2820 * lpfc_stop_port - Wrapper function for stopping hba port 2821 * @phba: Pointer to HBA context object. 2822 * 2823 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 2824 * the API jump table function pointer from the lpfc_hba struct. 2825 **/ 2826 void 2827 lpfc_stop_port(struct lpfc_hba *phba) 2828 { 2829 phba->lpfc_stop_port(phba); 2830 } 2831 2832 /** 2833 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port. 2834 * @phba: pointer to lpfc hba data structure. 2835 * 2836 * This routine is invoked to remove the driver default fcf record from 2837 * the port. This routine currently acts on FCF Index 0. 2838 * 2839 **/ 2840 void 2841 lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba) 2842 { 2843 int rc = 0; 2844 LPFC_MBOXQ_t *mboxq; 2845 struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record; 2846 uint32_t mbox_tmo, req_len; 2847 uint32_t shdr_status, shdr_add_status; 2848 2849 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2850 if (!mboxq) { 2851 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2852 "2020 Failed to allocate mbox for ADD_FCF cmd\n"); 2853 return; 2854 } 2855 2856 req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) - 2857 sizeof(struct lpfc_sli4_cfg_mhdr); 2858 rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, 2859 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF, 2860 req_len, LPFC_SLI4_MBX_EMBED); 2861 /* 2862 * In phase 1, there is a single FCF index, 0. In phase2, the driver 2863 * supports multiple FCF indices. 2864 */ 2865 del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry; 2866 bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1); 2867 bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record, 2868 phba->fcf.current_rec.fcf_indx); 2869 2870 if (!phba->sli4_hba.intr_enable) 2871 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 2872 else { 2873 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 2874 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 2875 } 2876 /* The IOCTL status is embedded in the mailbox subheader. */ 2877 shdr_status = bf_get(lpfc_mbox_hdr_status, 2878 &del_fcf_record->header.cfg_shdr.response); 2879 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 2880 &del_fcf_record->header.cfg_shdr.response); 2881 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 2882 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2883 "2516 DEL FCF of default FCF Index failed " 2884 "mbx status x%x, status x%x add_status x%x\n", 2885 rc, shdr_status, shdr_add_status); 2886 } 2887 if (rc != MBX_TIMEOUT) 2888 mempool_free(mboxq, phba->mbox_mem_pool); 2889 } 2890 2891 /** 2892 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 2893 * @phba: Pointer to hba for which this call is being executed. 2894 * 2895 * This routine starts the timer waiting for the FCF rediscovery to complete. 2896 **/ 2897 void 2898 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 2899 { 2900 unsigned long fcf_redisc_wait_tmo = 2901 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 2902 /* Start fcf rediscovery wait period timer */ 2903 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 2904 spin_lock_irq(&phba->hbalock); 2905 /* Allow action to new fcf asynchronous event */ 2906 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2907 /* Mark the FCF rediscovery pending state */ 2908 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 2909 spin_unlock_irq(&phba->hbalock); 2910 } 2911 2912 /** 2913 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 2914 * @ptr: Map to lpfc_hba data structure pointer. 2915 * 2916 * This routine is invoked when waiting for FCF table rediscover has been 2917 * timed out. If new FCF record(s) has (have) been discovered during the 2918 * wait period, a new FCF event shall be added to the FCOE async event 2919 * list, and then worker thread shall be waked up for processing from the 2920 * worker thread context. 2921 **/ 2922 void 2923 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 2924 { 2925 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 2926 2927 /* Don't send FCF rediscovery event if timer cancelled */ 2928 spin_lock_irq(&phba->hbalock); 2929 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2930 spin_unlock_irq(&phba->hbalock); 2931 return; 2932 } 2933 /* Clear FCF rediscovery timer pending flag */ 2934 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2935 /* FCF rediscovery event to worker thread */ 2936 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 2937 spin_unlock_irq(&phba->hbalock); 2938 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2939 "2776 FCF rediscover wait timer expired, post " 2940 "a worker thread event for FCF table scan\n"); 2941 /* wake up worker thread */ 2942 lpfc_worker_wake_up(phba); 2943 } 2944 2945 /** 2946 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support 2947 * @phba: pointer to lpfc hba data structure. 2948 * 2949 * This function uses the QUERY_FW_CFG mailbox command to determine if the 2950 * firmware loaded supports FCoE. A return of zero indicates that the mailbox 2951 * was successful and the firmware supports FCoE. Any other return indicates 2952 * a error. It is assumed that this function will be called before interrupts 2953 * are enabled. 2954 **/ 2955 static int 2956 lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba) 2957 { 2958 int rc = 0; 2959 LPFC_MBOXQ_t *mboxq; 2960 struct lpfc_mbx_query_fw_cfg *query_fw_cfg; 2961 uint32_t length; 2962 uint32_t shdr_status, shdr_add_status; 2963 2964 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2965 if (!mboxq) { 2966 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2967 "2621 Failed to allocate mbox for " 2968 "query firmware config cmd\n"); 2969 return -ENOMEM; 2970 } 2971 query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg; 2972 length = (sizeof(struct lpfc_mbx_query_fw_cfg) - 2973 sizeof(struct lpfc_sli4_cfg_mhdr)); 2974 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 2975 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 2976 length, LPFC_SLI4_MBX_EMBED); 2977 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 2978 /* The IOCTL status is embedded in the mailbox subheader. */ 2979 shdr_status = bf_get(lpfc_mbox_hdr_status, 2980 &query_fw_cfg->header.cfg_shdr.response); 2981 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 2982 &query_fw_cfg->header.cfg_shdr.response); 2983 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 2984 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2985 "2622 Query Firmware Config failed " 2986 "mbx status x%x, status x%x add_status x%x\n", 2987 rc, shdr_status, shdr_add_status); 2988 return -EINVAL; 2989 } 2990 if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) { 2991 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2992 "2623 FCoE Function not supported by firmware. " 2993 "Function mode = %08x\n", 2994 query_fw_cfg->function_mode); 2995 return -EINVAL; 2996 } 2997 if (rc != MBX_TIMEOUT) 2998 mempool_free(mboxq, phba->mbox_mem_pool); 2999 return 0; 3000 } 3001 3002 /** 3003 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3004 * @phba: pointer to lpfc hba data structure. 3005 * @acqe_link: pointer to the async link completion queue entry. 3006 * 3007 * This routine is to parse the SLI4 link-attention link fault code and 3008 * translate it into the base driver's read link attention mailbox command 3009 * status. 3010 * 3011 * Return: Link-attention status in terms of base driver's coding. 3012 **/ 3013 static uint16_t 3014 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3015 struct lpfc_acqe_link *acqe_link) 3016 { 3017 uint16_t latt_fault; 3018 3019 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3020 case LPFC_ASYNC_LINK_FAULT_NONE: 3021 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3022 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3023 latt_fault = 0; 3024 break; 3025 default: 3026 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3027 "0398 Invalid link fault code: x%x\n", 3028 bf_get(lpfc_acqe_link_fault, acqe_link)); 3029 latt_fault = MBXERR_ERROR; 3030 break; 3031 } 3032 return latt_fault; 3033 } 3034 3035 /** 3036 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3037 * @phba: pointer to lpfc hba data structure. 3038 * @acqe_link: pointer to the async link completion queue entry. 3039 * 3040 * This routine is to parse the SLI4 link attention type and translate it 3041 * into the base driver's link attention type coding. 3042 * 3043 * Return: Link attention type in terms of base driver's coding. 3044 **/ 3045 static uint8_t 3046 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3047 struct lpfc_acqe_link *acqe_link) 3048 { 3049 uint8_t att_type; 3050 3051 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3052 case LPFC_ASYNC_LINK_STATUS_DOWN: 3053 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3054 att_type = AT_LINK_DOWN; 3055 break; 3056 case LPFC_ASYNC_LINK_STATUS_UP: 3057 /* Ignore physical link up events - wait for logical link up */ 3058 att_type = AT_RESERVED; 3059 break; 3060 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3061 att_type = AT_LINK_UP; 3062 break; 3063 default: 3064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3065 "0399 Invalid link attention type: x%x\n", 3066 bf_get(lpfc_acqe_link_status, acqe_link)); 3067 att_type = AT_RESERVED; 3068 break; 3069 } 3070 return att_type; 3071 } 3072 3073 /** 3074 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3075 * @phba: pointer to lpfc hba data structure. 3076 * @acqe_link: pointer to the async link completion queue entry. 3077 * 3078 * This routine is to parse the SLI4 link-attention link speed and translate 3079 * it into the base driver's link-attention link speed coding. 3080 * 3081 * Return: Link-attention link speed in terms of base driver's coding. 3082 **/ 3083 static uint8_t 3084 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3085 struct lpfc_acqe_link *acqe_link) 3086 { 3087 uint8_t link_speed; 3088 3089 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3090 case LPFC_ASYNC_LINK_SPEED_ZERO: 3091 link_speed = LA_UNKNW_LINK; 3092 break; 3093 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3094 link_speed = LA_UNKNW_LINK; 3095 break; 3096 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3097 link_speed = LA_UNKNW_LINK; 3098 break; 3099 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3100 link_speed = LA_1GHZ_LINK; 3101 break; 3102 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3103 link_speed = LA_10GHZ_LINK; 3104 break; 3105 default: 3106 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3107 "0483 Invalid link-attention link speed: x%x\n", 3108 bf_get(lpfc_acqe_link_speed, acqe_link)); 3109 link_speed = LA_UNKNW_LINK; 3110 break; 3111 } 3112 return link_speed; 3113 } 3114 3115 /** 3116 * lpfc_sli4_async_link_evt - Process the asynchronous link event 3117 * @phba: pointer to lpfc hba data structure. 3118 * @acqe_link: pointer to the async link completion queue entry. 3119 * 3120 * This routine is to handle the SLI4 asynchronous link event. 3121 **/ 3122 static void 3123 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3124 struct lpfc_acqe_link *acqe_link) 3125 { 3126 struct lpfc_dmabuf *mp; 3127 LPFC_MBOXQ_t *pmb; 3128 MAILBOX_t *mb; 3129 READ_LA_VAR *la; 3130 uint8_t att_type; 3131 3132 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3133 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP) 3134 return; 3135 phba->fcoe_eventtag = acqe_link->event_tag; 3136 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3137 if (!pmb) { 3138 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3139 "0395 The mboxq allocation failed\n"); 3140 return; 3141 } 3142 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3143 if (!mp) { 3144 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3145 "0396 The lpfc_dmabuf allocation failed\n"); 3146 goto out_free_pmb; 3147 } 3148 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3149 if (!mp->virt) { 3150 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3151 "0397 The mbuf allocation failed\n"); 3152 goto out_free_dmabuf; 3153 } 3154 3155 /* Cleanup any outstanding ELS commands */ 3156 lpfc_els_flush_all_cmd(phba); 3157 3158 /* Block ELS IOCBs until we have done process link event */ 3159 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3160 3161 /* Update link event statistics */ 3162 phba->sli.slistat.link_event++; 3163 3164 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */ 3165 lpfc_read_la(phba, pmb, mp); 3166 pmb->vport = phba->pport; 3167 3168 /* Parse and translate status field */ 3169 mb = &pmb->u.mb; 3170 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3171 3172 /* Parse and translate link attention fields */ 3173 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA; 3174 la->eventTag = acqe_link->event_tag; 3175 la->attType = att_type; 3176 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link); 3177 3178 /* Fake the the following irrelvant fields */ 3179 la->topology = TOPOLOGY_PT_PT; 3180 la->granted_AL_PA = 0; 3181 la->il = 0; 3182 la->pb = 0; 3183 la->fa = 0; 3184 la->mm = 0; 3185 3186 /* Keep the link status for extra SLI4 state machine reference */ 3187 phba->sli4_hba.link_state.speed = 3188 bf_get(lpfc_acqe_link_speed, acqe_link); 3189 phba->sli4_hba.link_state.duplex = 3190 bf_get(lpfc_acqe_link_duplex, acqe_link); 3191 phba->sli4_hba.link_state.status = 3192 bf_get(lpfc_acqe_link_status, acqe_link); 3193 phba->sli4_hba.link_state.physical = 3194 bf_get(lpfc_acqe_link_physical, acqe_link); 3195 phba->sli4_hba.link_state.fault = 3196 bf_get(lpfc_acqe_link_fault, acqe_link); 3197 phba->sli4_hba.link_state.logical_speed = 3198 bf_get(lpfc_acqe_qos_link_speed, acqe_link); 3199 3200 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3201 lpfc_mbx_cmpl_read_la(phba, pmb); 3202 3203 return; 3204 3205 out_free_dmabuf: 3206 kfree(mp); 3207 out_free_pmb: 3208 mempool_free(pmb, phba->mbox_mem_pool); 3209 } 3210 3211 /** 3212 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3213 * @vport: pointer to vport data structure. 3214 * 3215 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3216 * response to a CVL event. 3217 * 3218 * Return the pointer to the ndlp with the vport if successful, otherwise 3219 * return NULL. 3220 **/ 3221 static struct lpfc_nodelist * 3222 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3223 { 3224 struct lpfc_nodelist *ndlp; 3225 struct Scsi_Host *shost; 3226 struct lpfc_hba *phba; 3227 3228 if (!vport) 3229 return NULL; 3230 phba = vport->phba; 3231 if (!phba) 3232 return NULL; 3233 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3234 if (!ndlp) { 3235 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3236 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3237 if (!ndlp) 3238 return 0; 3239 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3240 /* Set the node type */ 3241 ndlp->nlp_type |= NLP_FABRIC; 3242 /* Put ndlp onto node list */ 3243 lpfc_enqueue_node(vport, ndlp); 3244 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3245 /* re-setup ndlp without removing from node list */ 3246 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3247 if (!ndlp) 3248 return 0; 3249 } 3250 if (phba->pport->port_state <= LPFC_FLOGI) 3251 return NULL; 3252 /* If virtual link is not yet instantiated ignore CVL */ 3253 if (vport->port_state <= LPFC_FDISC) 3254 return NULL; 3255 shost = lpfc_shost_from_vport(vport); 3256 if (!shost) 3257 return NULL; 3258 lpfc_linkdown_port(vport); 3259 lpfc_cleanup_pending_mbox(vport); 3260 spin_lock_irq(shost->host_lock); 3261 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3262 spin_unlock_irq(shost->host_lock); 3263 3264 return ndlp; 3265 } 3266 3267 /** 3268 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3269 * @vport: pointer to lpfc hba data structure. 3270 * 3271 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3272 * response to a FCF dead event. 3273 **/ 3274 static void 3275 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3276 { 3277 struct lpfc_vport **vports; 3278 int i; 3279 3280 vports = lpfc_create_vport_work_array(phba); 3281 if (vports) 3282 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3283 lpfc_sli4_perform_vport_cvl(vports[i]); 3284 lpfc_destroy_vport_work_array(phba, vports); 3285 } 3286 3287 /** 3288 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event 3289 * @phba: pointer to lpfc hba data structure. 3290 * @acqe_link: pointer to the async fcoe completion queue entry. 3291 * 3292 * This routine is to handle the SLI4 asynchronous fcoe event. 3293 **/ 3294 static void 3295 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, 3296 struct lpfc_acqe_fcoe *acqe_fcoe) 3297 { 3298 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe); 3299 int rc; 3300 struct lpfc_vport *vport; 3301 struct lpfc_nodelist *ndlp; 3302 struct Scsi_Host *shost; 3303 int active_vlink_present; 3304 struct lpfc_vport **vports; 3305 int i; 3306 3307 phba->fc_eventTag = acqe_fcoe->event_tag; 3308 phba->fcoe_eventtag = acqe_fcoe->event_tag; 3309 switch (event_type) { 3310 case LPFC_FCOE_EVENT_TYPE_NEW_FCF: 3311 case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD: 3312 if (event_type == LPFC_FCOE_EVENT_TYPE_NEW_FCF) 3313 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3314 LOG_DISCOVERY, 3315 "2546 New FCF found event: " 3316 "evt_tag:x%x, fcf_index:x%x\n", 3317 acqe_fcoe->event_tag, 3318 acqe_fcoe->index); 3319 else 3320 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 3321 LOG_DISCOVERY, 3322 "2788 FCF parameter modified event: " 3323 "evt_tag:x%x, fcf_index:x%x\n", 3324 acqe_fcoe->event_tag, 3325 acqe_fcoe->index); 3326 spin_lock_irq(&phba->hbalock); 3327 if ((phba->fcf.fcf_flag & FCF_SCAN_DONE) || 3328 (phba->hba_flag & FCF_DISC_INPROGRESS)) { 3329 /* 3330 * If the current FCF is in discovered state or 3331 * FCF discovery is in progress, do nothing. 3332 */ 3333 spin_unlock_irq(&phba->hbalock); 3334 break; 3335 } 3336 3337 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 3338 /* 3339 * If fast FCF failover rescan event is pending, 3340 * do nothing. 3341 */ 3342 spin_unlock_irq(&phba->hbalock); 3343 break; 3344 } 3345 spin_unlock_irq(&phba->hbalock); 3346 3347 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && 3348 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 3349 /* 3350 * During period of FCF discovery, read the FCF 3351 * table record indexed by the event to update 3352 * FCF round robin failover eligible FCF bmask. 3353 */ 3354 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3355 LOG_DISCOVERY, 3356 "2779 Read new FCF record with " 3357 "fcf_index:x%x for updating FCF " 3358 "round robin failover bmask\n", 3359 acqe_fcoe->index); 3360 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index); 3361 } 3362 3363 /* Otherwise, scan the entire FCF table and re-discover SAN */ 3364 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3365 "2770 Start FCF table scan due to new FCF " 3366 "event: evt_tag:x%x, fcf_index:x%x\n", 3367 acqe_fcoe->event_tag, acqe_fcoe->index); 3368 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3369 LPFC_FCOE_FCF_GET_FIRST); 3370 if (rc) 3371 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3372 "2547 Issue FCF scan read FCF mailbox " 3373 "command failed 0x%x\n", rc); 3374 break; 3375 3376 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL: 3377 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3378 "2548 FCF Table full count 0x%x tag 0x%x\n", 3379 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe), 3380 acqe_fcoe->event_tag); 3381 break; 3382 3383 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD: 3384 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3385 "2549 FCF disconnected from network index 0x%x" 3386 " tag 0x%x\n", acqe_fcoe->index, 3387 acqe_fcoe->event_tag); 3388 /* If the event is not for currently used fcf do nothing */ 3389 if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index) 3390 break; 3391 /* We request port to rediscover the entire FCF table for 3392 * a fast recovery from case that the current FCF record 3393 * is no longer valid if we are not in the middle of FCF 3394 * failover process already. 3395 */ 3396 spin_lock_irq(&phba->hbalock); 3397 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3398 spin_unlock_irq(&phba->hbalock); 3399 /* Update FLOGI FCF failover eligible FCF bmask */ 3400 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index); 3401 break; 3402 } 3403 /* Mark the fast failover process in progress */ 3404 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 3405 spin_unlock_irq(&phba->hbalock); 3406 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3407 "2771 Start FCF fast failover process due to " 3408 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 3409 "\n", acqe_fcoe->event_tag, acqe_fcoe->index); 3410 rc = lpfc_sli4_redisc_fcf_table(phba); 3411 if (rc) { 3412 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3413 LOG_DISCOVERY, 3414 "2772 Issue FCF rediscover mabilbox " 3415 "command failed, fail through to FCF " 3416 "dead event\n"); 3417 spin_lock_irq(&phba->hbalock); 3418 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 3419 spin_unlock_irq(&phba->hbalock); 3420 /* 3421 * Last resort will fail over by treating this 3422 * as a link down to FCF registration. 3423 */ 3424 lpfc_sli4_fcf_dead_failthrough(phba); 3425 } else 3426 /* Handling fast FCF failover to a DEAD FCF event 3427 * is considered equalivant to receiving CVL to all 3428 * vports. 3429 */ 3430 lpfc_sli4_perform_all_vport_cvl(phba); 3431 break; 3432 case LPFC_FCOE_EVENT_TYPE_CVL: 3433 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3434 "2718 Clear Virtual Link Received for VPI 0x%x" 3435 " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag); 3436 vport = lpfc_find_vport_by_vpid(phba, 3437 acqe_fcoe->index - phba->vpi_base); 3438 ndlp = lpfc_sli4_perform_vport_cvl(vport); 3439 if (!ndlp) 3440 break; 3441 active_vlink_present = 0; 3442 3443 vports = lpfc_create_vport_work_array(phba); 3444 if (vports) { 3445 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 3446 i++) { 3447 if ((!(vports[i]->fc_flag & 3448 FC_VPORT_CVL_RCVD)) && 3449 (vports[i]->port_state > LPFC_FDISC)) { 3450 active_vlink_present = 1; 3451 break; 3452 } 3453 } 3454 lpfc_destroy_vport_work_array(phba, vports); 3455 } 3456 3457 if (active_vlink_present) { 3458 /* 3459 * If there are other active VLinks present, 3460 * re-instantiate the Vlink using FDISC. 3461 */ 3462 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3463 shost = lpfc_shost_from_vport(vport); 3464 spin_lock_irq(shost->host_lock); 3465 ndlp->nlp_flag |= NLP_DELAY_TMO; 3466 spin_unlock_irq(shost->host_lock); 3467 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 3468 vport->port_state = LPFC_FDISC; 3469 } else { 3470 /* 3471 * Otherwise, we request port to rediscover 3472 * the entire FCF table for a fast recovery 3473 * from possible case that the current FCF 3474 * is no longer valid if we are not already 3475 * in the FCF failover process. 3476 */ 3477 spin_lock_irq(&phba->hbalock); 3478 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3479 spin_unlock_irq(&phba->hbalock); 3480 break; 3481 } 3482 /* Mark the fast failover process in progress */ 3483 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 3484 spin_unlock_irq(&phba->hbalock); 3485 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3486 LOG_DISCOVERY, 3487 "2773 Start FCF fast failover due " 3488 "to CVL event: evt_tag:x%x\n", 3489 acqe_fcoe->event_tag); 3490 rc = lpfc_sli4_redisc_fcf_table(phba); 3491 if (rc) { 3492 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3493 LOG_DISCOVERY, 3494 "2774 Issue FCF rediscover " 3495 "mabilbox command failed, " 3496 "through to CVL event\n"); 3497 spin_lock_irq(&phba->hbalock); 3498 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 3499 spin_unlock_irq(&phba->hbalock); 3500 /* 3501 * Last resort will be re-try on the 3502 * the current registered FCF entry. 3503 */ 3504 lpfc_retry_pport_discovery(phba); 3505 } 3506 } 3507 break; 3508 default: 3509 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3510 "0288 Unknown FCoE event type 0x%x event tag " 3511 "0x%x\n", event_type, acqe_fcoe->event_tag); 3512 break; 3513 } 3514 } 3515 3516 /** 3517 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 3518 * @phba: pointer to lpfc hba data structure. 3519 * @acqe_link: pointer to the async dcbx completion queue entry. 3520 * 3521 * This routine is to handle the SLI4 asynchronous dcbx event. 3522 **/ 3523 static void 3524 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 3525 struct lpfc_acqe_dcbx *acqe_dcbx) 3526 { 3527 phba->fc_eventTag = acqe_dcbx->event_tag; 3528 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3529 "0290 The SLI4 DCBX asynchronous event is not " 3530 "handled yet\n"); 3531 } 3532 3533 /** 3534 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 3535 * @phba: pointer to lpfc hba data structure. 3536 * @acqe_link: pointer to the async grp5 completion queue entry. 3537 * 3538 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 3539 * is an asynchronous notified of a logical link speed change. The Port 3540 * reports the logical link speed in units of 10Mbps. 3541 **/ 3542 static void 3543 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 3544 struct lpfc_acqe_grp5 *acqe_grp5) 3545 { 3546 uint16_t prev_ll_spd; 3547 3548 phba->fc_eventTag = acqe_grp5->event_tag; 3549 phba->fcoe_eventtag = acqe_grp5->event_tag; 3550 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 3551 phba->sli4_hba.link_state.logical_speed = 3552 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); 3553 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3554 "2789 GRP5 Async Event: Updating logical link speed " 3555 "from %dMbps to %dMbps\n", (prev_ll_spd * 10), 3556 (phba->sli4_hba.link_state.logical_speed*10)); 3557 } 3558 3559 /** 3560 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3561 * @phba: pointer to lpfc hba data structure. 3562 * 3563 * This routine is invoked by the worker thread to process all the pending 3564 * SLI4 asynchronous events. 3565 **/ 3566 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3567 { 3568 struct lpfc_cq_event *cq_event; 3569 3570 /* First, declare the async event has been handled */ 3571 spin_lock_irq(&phba->hbalock); 3572 phba->hba_flag &= ~ASYNC_EVENT; 3573 spin_unlock_irq(&phba->hbalock); 3574 /* Now, handle all the async events */ 3575 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3576 /* Get the first event from the head of the event queue */ 3577 spin_lock_irq(&phba->hbalock); 3578 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3579 cq_event, struct lpfc_cq_event, list); 3580 spin_unlock_irq(&phba->hbalock); 3581 /* Process the asynchronous event */ 3582 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3583 case LPFC_TRAILER_CODE_LINK: 3584 lpfc_sli4_async_link_evt(phba, 3585 &cq_event->cqe.acqe_link); 3586 break; 3587 case LPFC_TRAILER_CODE_FCOE: 3588 lpfc_sli4_async_fcoe_evt(phba, 3589 &cq_event->cqe.acqe_fcoe); 3590 break; 3591 case LPFC_TRAILER_CODE_DCBX: 3592 lpfc_sli4_async_dcbx_evt(phba, 3593 &cq_event->cqe.acqe_dcbx); 3594 break; 3595 case LPFC_TRAILER_CODE_GRP5: 3596 lpfc_sli4_async_grp5_evt(phba, 3597 &cq_event->cqe.acqe_grp5); 3598 break; 3599 default: 3600 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3601 "1804 Invalid asynchrous event code: " 3602 "x%x\n", bf_get(lpfc_trailer_code, 3603 &cq_event->cqe.mcqe_cmpl)); 3604 break; 3605 } 3606 /* Free the completion event processed to the free pool */ 3607 lpfc_sli4_cq_event_release(phba, cq_event); 3608 } 3609 } 3610 3611 /** 3612 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 3613 * @phba: pointer to lpfc hba data structure. 3614 * 3615 * This routine is invoked by the worker thread to process FCF table 3616 * rediscovery pending completion event. 3617 **/ 3618 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 3619 { 3620 int rc; 3621 3622 spin_lock_irq(&phba->hbalock); 3623 /* Clear FCF rediscovery timeout event */ 3624 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 3625 /* Clear driver fast failover FCF record flag */ 3626 phba->fcf.failover_rec.flag = 0; 3627 /* Set state for FCF fast failover */ 3628 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 3629 spin_unlock_irq(&phba->hbalock); 3630 3631 /* Scan FCF table from the first entry to re-discover SAN */ 3632 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3633 "2777 Start FCF table scan after FCF " 3634 "rediscovery quiescent period over\n"); 3635 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 3636 if (rc) 3637 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3638 "2747 Issue FCF scan read FCF mailbox " 3639 "command failed 0x%x\n", rc); 3640 } 3641 3642 /** 3643 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3644 * @phba: pointer to lpfc hba data structure. 3645 * @dev_grp: The HBA PCI-Device group number. 3646 * 3647 * This routine is invoked to set up the per HBA PCI-Device group function 3648 * API jump table entries. 3649 * 3650 * Return: 0 if success, otherwise -ENODEV 3651 **/ 3652 int 3653 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3654 { 3655 int rc; 3656 3657 /* Set up lpfc PCI-device group */ 3658 phba->pci_dev_grp = dev_grp; 3659 3660 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3661 if (dev_grp == LPFC_PCI_DEV_OC) 3662 phba->sli_rev = LPFC_SLI_REV4; 3663 3664 /* Set up device INIT API function jump table */ 3665 rc = lpfc_init_api_table_setup(phba, dev_grp); 3666 if (rc) 3667 return -ENODEV; 3668 /* Set up SCSI API function jump table */ 3669 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3670 if (rc) 3671 return -ENODEV; 3672 /* Set up SLI API function jump table */ 3673 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3674 if (rc) 3675 return -ENODEV; 3676 /* Set up MBOX API function jump table */ 3677 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3678 if (rc) 3679 return -ENODEV; 3680 3681 return 0; 3682 } 3683 3684 /** 3685 * lpfc_log_intr_mode - Log the active interrupt mode 3686 * @phba: pointer to lpfc hba data structure. 3687 * @intr_mode: active interrupt mode adopted. 3688 * 3689 * This routine it invoked to log the currently used active interrupt mode 3690 * to the device. 3691 **/ 3692 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3693 { 3694 switch (intr_mode) { 3695 case 0: 3696 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3697 "0470 Enable INTx interrupt mode.\n"); 3698 break; 3699 case 1: 3700 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3701 "0481 Enabled MSI interrupt mode.\n"); 3702 break; 3703 case 2: 3704 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3705 "0480 Enabled MSI-X interrupt mode.\n"); 3706 break; 3707 default: 3708 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3709 "0482 Illegal interrupt mode.\n"); 3710 break; 3711 } 3712 return; 3713 } 3714 3715 /** 3716 * lpfc_enable_pci_dev - Enable a generic PCI device. 3717 * @phba: pointer to lpfc hba data structure. 3718 * 3719 * This routine is invoked to enable the PCI device that is common to all 3720 * PCI devices. 3721 * 3722 * Return codes 3723 * 0 - successful 3724 * other values - error 3725 **/ 3726 static int 3727 lpfc_enable_pci_dev(struct lpfc_hba *phba) 3728 { 3729 struct pci_dev *pdev; 3730 int bars; 3731 3732 /* Obtain PCI device reference */ 3733 if (!phba->pcidev) 3734 goto out_error; 3735 else 3736 pdev = phba->pcidev; 3737 /* Select PCI BARs */ 3738 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3739 /* Enable PCI device */ 3740 if (pci_enable_device_mem(pdev)) 3741 goto out_error; 3742 /* Request PCI resource for the device */ 3743 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3744 goto out_disable_device; 3745 /* Set up device as PCI master and save state for EEH */ 3746 pci_set_master(pdev); 3747 pci_try_set_mwi(pdev); 3748 pci_save_state(pdev); 3749 3750 return 0; 3751 3752 out_disable_device: 3753 pci_disable_device(pdev); 3754 out_error: 3755 return -ENODEV; 3756 } 3757 3758 /** 3759 * lpfc_disable_pci_dev - Disable a generic PCI device. 3760 * @phba: pointer to lpfc hba data structure. 3761 * 3762 * This routine is invoked to disable the PCI device that is common to all 3763 * PCI devices. 3764 **/ 3765 static void 3766 lpfc_disable_pci_dev(struct lpfc_hba *phba) 3767 { 3768 struct pci_dev *pdev; 3769 int bars; 3770 3771 /* Obtain PCI device reference */ 3772 if (!phba->pcidev) 3773 return; 3774 else 3775 pdev = phba->pcidev; 3776 /* Select PCI BARs */ 3777 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3778 /* Release PCI resource and disable PCI device */ 3779 pci_release_selected_regions(pdev, bars); 3780 pci_disable_device(pdev); 3781 /* Null out PCI private reference to driver */ 3782 pci_set_drvdata(pdev, NULL); 3783 3784 return; 3785 } 3786 3787 /** 3788 * lpfc_reset_hba - Reset a hba 3789 * @phba: pointer to lpfc hba data structure. 3790 * 3791 * This routine is invoked to reset a hba device. It brings the HBA 3792 * offline, performs a board restart, and then brings the board back 3793 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 3794 * on outstanding mailbox commands. 3795 **/ 3796 void 3797 lpfc_reset_hba(struct lpfc_hba *phba) 3798 { 3799 /* If resets are disabled then set error state and return. */ 3800 if (!phba->cfg_enable_hba_reset) { 3801 phba->link_state = LPFC_HBA_ERROR; 3802 return; 3803 } 3804 lpfc_offline_prep(phba); 3805 lpfc_offline(phba); 3806 lpfc_sli_brdrestart(phba); 3807 lpfc_online(phba); 3808 lpfc_unblock_mgmt_io(phba); 3809 } 3810 3811 /** 3812 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 3813 * @phba: pointer to lpfc hba data structure. 3814 * 3815 * This routine is invoked to set up the driver internal resources specific to 3816 * support the SLI-3 HBA device it attached to. 3817 * 3818 * Return codes 3819 * 0 - successful 3820 * other values - error 3821 **/ 3822 static int 3823 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 3824 { 3825 struct lpfc_sli *psli; 3826 3827 /* 3828 * Initialize timers used by driver 3829 */ 3830 3831 /* Heartbeat timer */ 3832 init_timer(&phba->hb_tmofunc); 3833 phba->hb_tmofunc.function = lpfc_hb_timeout; 3834 phba->hb_tmofunc.data = (unsigned long)phba; 3835 3836 psli = &phba->sli; 3837 /* MBOX heartbeat timer */ 3838 init_timer(&psli->mbox_tmo); 3839 psli->mbox_tmo.function = lpfc_mbox_timeout; 3840 psli->mbox_tmo.data = (unsigned long) phba; 3841 /* FCP polling mode timer */ 3842 init_timer(&phba->fcp_poll_timer); 3843 phba->fcp_poll_timer.function = lpfc_poll_timeout; 3844 phba->fcp_poll_timer.data = (unsigned long) phba; 3845 /* Fabric block timer */ 3846 init_timer(&phba->fabric_block_timer); 3847 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3848 phba->fabric_block_timer.data = (unsigned long) phba; 3849 /* EA polling mode timer */ 3850 init_timer(&phba->eratt_poll); 3851 phba->eratt_poll.function = lpfc_poll_eratt; 3852 phba->eratt_poll.data = (unsigned long) phba; 3853 3854 /* Host attention work mask setup */ 3855 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 3856 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 3857 3858 /* Get all the module params for configuring this host */ 3859 lpfc_get_cfgparam(phba); 3860 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 3861 phba->menlo_flag |= HBA_MENLO_SUPPORT; 3862 /* check for menlo minimum sg count */ 3863 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 3864 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 3865 } 3866 3867 /* 3868 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3869 * used to create the sg_dma_buf_pool must be dynamically calculated. 3870 * 2 segments are added since the IOCB needs a command and response bde. 3871 */ 3872 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 3873 sizeof(struct fcp_rsp) + 3874 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 3875 3876 if (phba->cfg_enable_bg) { 3877 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 3878 phba->cfg_sg_dma_buf_size += 3879 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 3880 } 3881 3882 /* Also reinitialize the host templates with new values. */ 3883 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3884 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3885 3886 phba->max_vpi = LPFC_MAX_VPI; 3887 /* This will be set to correct value after config_port mbox */ 3888 phba->max_vports = 0; 3889 3890 /* 3891 * Initialize the SLI Layer to run with lpfc HBAs. 3892 */ 3893 lpfc_sli_setup(phba); 3894 lpfc_sli_queue_setup(phba); 3895 3896 /* Allocate device driver memory */ 3897 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 3898 return -ENOMEM; 3899 3900 return 0; 3901 } 3902 3903 /** 3904 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 3905 * @phba: pointer to lpfc hba data structure. 3906 * 3907 * This routine is invoked to unset the driver internal resources set up 3908 * specific for supporting the SLI-3 HBA device it attached to. 3909 **/ 3910 static void 3911 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 3912 { 3913 /* Free device driver memory allocated */ 3914 lpfc_mem_free_all(phba); 3915 3916 return; 3917 } 3918 3919 /** 3920 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 3921 * @phba: pointer to lpfc hba data structure. 3922 * 3923 * This routine is invoked to set up the driver internal resources specific to 3924 * support the SLI-4 HBA device it attached to. 3925 * 3926 * Return codes 3927 * 0 - successful 3928 * other values - error 3929 **/ 3930 static int 3931 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 3932 { 3933 struct lpfc_sli *psli; 3934 LPFC_MBOXQ_t *mboxq; 3935 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 3936 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 3937 struct lpfc_mqe *mqe; 3938 int longs; 3939 3940 /* Before proceed, wait for POST done and device ready */ 3941 rc = lpfc_sli4_post_status_check(phba); 3942 if (rc) 3943 return -ENODEV; 3944 3945 /* 3946 * Initialize timers used by driver 3947 */ 3948 3949 /* Heartbeat timer */ 3950 init_timer(&phba->hb_tmofunc); 3951 phba->hb_tmofunc.function = lpfc_hb_timeout; 3952 phba->hb_tmofunc.data = (unsigned long)phba; 3953 3954 psli = &phba->sli; 3955 /* MBOX heartbeat timer */ 3956 init_timer(&psli->mbox_tmo); 3957 psli->mbox_tmo.function = lpfc_mbox_timeout; 3958 psli->mbox_tmo.data = (unsigned long) phba; 3959 /* Fabric block timer */ 3960 init_timer(&phba->fabric_block_timer); 3961 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3962 phba->fabric_block_timer.data = (unsigned long) phba; 3963 /* EA polling mode timer */ 3964 init_timer(&phba->eratt_poll); 3965 phba->eratt_poll.function = lpfc_poll_eratt; 3966 phba->eratt_poll.data = (unsigned long) phba; 3967 /* FCF rediscover timer */ 3968 init_timer(&phba->fcf.redisc_wait); 3969 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 3970 phba->fcf.redisc_wait.data = (unsigned long)phba; 3971 3972 /* 3973 * We need to do a READ_CONFIG mailbox command here before 3974 * calling lpfc_get_cfgparam. For VFs this will report the 3975 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 3976 * All of the resources allocated 3977 * for this Port are tied to these values. 3978 */ 3979 /* Get all the module params for configuring this host */ 3980 lpfc_get_cfgparam(phba); 3981 phba->max_vpi = LPFC_MAX_VPI; 3982 /* This will be set to correct value after the read_config mbox */ 3983 phba->max_vports = 0; 3984 3985 /* Program the default value of vlan_id and fc_map */ 3986 phba->valid_vlan = 0; 3987 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 3988 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 3989 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 3990 3991 /* 3992 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3993 * used to create the sg_dma_buf_pool must be dynamically calculated. 3994 * 2 segments are added since the IOCB needs a command and response bde. 3995 * To insure that the scsi sgl does not cross a 4k page boundary only 3996 * sgl sizes of must be a power of 2. 3997 */ 3998 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 3999 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge))); 4000 /* Feature Level 1 hardware is limited to 2 pages */ 4001 if ((bf_get(lpfc_sli_intf_featurelevel1, &phba->sli4_hba.sli_intf) == 4002 LPFC_SLI_INTF_FEATURELEVEL1_1)) 4003 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4004 else 4005 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4006 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4007 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4008 dma_buf_size = dma_buf_size << 1) 4009 ; 4010 if (dma_buf_size == max_buf_size) 4011 phba->cfg_sg_seg_cnt = (dma_buf_size - 4012 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4013 (2 * sizeof(struct sli4_sge))) / 4014 sizeof(struct sli4_sge); 4015 phba->cfg_sg_dma_buf_size = dma_buf_size; 4016 4017 /* Initialize buffer queue management fields */ 4018 hbq_count = lpfc_sli_hbq_count(); 4019 for (i = 0; i < hbq_count; ++i) 4020 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4021 INIT_LIST_HEAD(&phba->rb_pend_list); 4022 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4023 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4024 4025 /* 4026 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4027 */ 4028 /* Initialize the Abort scsi buffer list used by driver */ 4029 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4030 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4031 /* This abort list used by worker thread */ 4032 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4033 4034 /* 4035 * Initialize dirver internal slow-path work queues 4036 */ 4037 4038 /* Driver internel slow-path CQ Event pool */ 4039 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4040 /* Response IOCB work queue list */ 4041 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4042 /* Asynchronous event CQ Event work queue list */ 4043 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4044 /* Fast-path XRI aborted CQ Event work queue list */ 4045 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4046 /* Slow-path XRI aborted CQ Event work queue list */ 4047 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4048 /* Receive queue CQ Event work queue list */ 4049 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4050 4051 /* Initialize the driver internal SLI layer lists. */ 4052 lpfc_sli_setup(phba); 4053 lpfc_sli_queue_setup(phba); 4054 4055 /* Allocate device driver memory */ 4056 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4057 if (rc) 4058 return -ENOMEM; 4059 4060 /* Create the bootstrap mailbox command */ 4061 rc = lpfc_create_bootstrap_mbox(phba); 4062 if (unlikely(rc)) 4063 goto out_free_mem; 4064 4065 /* Set up the host's endian order with the device. */ 4066 rc = lpfc_setup_endian_order(phba); 4067 if (unlikely(rc)) 4068 goto out_free_bsmbx; 4069 4070 rc = lpfc_sli4_fw_cfg_check(phba); 4071 if (unlikely(rc)) 4072 goto out_free_bsmbx; 4073 4074 /* Set up the hba's configuration parameters. */ 4075 rc = lpfc_sli4_read_config(phba); 4076 if (unlikely(rc)) 4077 goto out_free_bsmbx; 4078 4079 /* Perform a function reset */ 4080 rc = lpfc_pci_function_reset(phba); 4081 if (unlikely(rc)) 4082 goto out_free_bsmbx; 4083 4084 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4085 GFP_KERNEL); 4086 if (!mboxq) { 4087 rc = -ENOMEM; 4088 goto out_free_bsmbx; 4089 } 4090 4091 /* Get the Supported Pages. It is always available. */ 4092 lpfc_supported_pages(mboxq); 4093 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4094 if (unlikely(rc)) { 4095 rc = -EIO; 4096 mempool_free(mboxq, phba->mbox_mem_pool); 4097 goto out_free_bsmbx; 4098 } 4099 4100 mqe = &mboxq->u.mqe; 4101 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4102 LPFC_MAX_SUPPORTED_PAGES); 4103 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4104 switch (pn_page[i]) { 4105 case LPFC_SLI4_PARAMETERS: 4106 phba->sli4_hba.pc_sli4_params.supported = 1; 4107 break; 4108 default: 4109 break; 4110 } 4111 } 4112 4113 /* Read the port's SLI4 Parameters capabilities if supported. */ 4114 if (phba->sli4_hba.pc_sli4_params.supported) 4115 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4116 mempool_free(mboxq, phba->mbox_mem_pool); 4117 if (rc) { 4118 rc = -EIO; 4119 goto out_free_bsmbx; 4120 } 4121 /* Create all the SLI4 queues */ 4122 rc = lpfc_sli4_queue_create(phba); 4123 if (rc) 4124 goto out_free_bsmbx; 4125 4126 /* Create driver internal CQE event pool */ 4127 rc = lpfc_sli4_cq_event_pool_create(phba); 4128 if (rc) 4129 goto out_destroy_queue; 4130 4131 /* Initialize and populate the iocb list per host */ 4132 rc = lpfc_init_sgl_list(phba); 4133 if (rc) { 4134 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4135 "1400 Failed to initialize sgl list.\n"); 4136 goto out_destroy_cq_event_pool; 4137 } 4138 rc = lpfc_init_active_sgl_array(phba); 4139 if (rc) { 4140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4141 "1430 Failed to initialize sgl list.\n"); 4142 goto out_free_sgl_list; 4143 } 4144 4145 rc = lpfc_sli4_init_rpi_hdrs(phba); 4146 if (rc) { 4147 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4148 "1432 Failed to initialize rpi headers.\n"); 4149 goto out_free_active_sgl; 4150 } 4151 4152 /* Allocate eligible FCF bmask memory for FCF round robin failover */ 4153 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 4154 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 4155 GFP_KERNEL); 4156 if (!phba->fcf.fcf_rr_bmask) { 4157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4158 "2759 Failed allocate memory for FCF round " 4159 "robin failover bmask\n"); 4160 goto out_remove_rpi_hdrs; 4161 } 4162 4163 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 4164 phba->cfg_fcp_eq_count), GFP_KERNEL); 4165 if (!phba->sli4_hba.fcp_eq_hdl) { 4166 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4167 "2572 Failed allocate memory for fast-path " 4168 "per-EQ handle array\n"); 4169 goto out_free_fcf_rr_bmask; 4170 } 4171 4172 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 4173 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 4174 if (!phba->sli4_hba.msix_entries) { 4175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4176 "2573 Failed allocate memory for msi-x " 4177 "interrupt vector entries\n"); 4178 goto out_free_fcp_eq_hdl; 4179 } 4180 4181 return rc; 4182 4183 out_free_fcp_eq_hdl: 4184 kfree(phba->sli4_hba.fcp_eq_hdl); 4185 out_free_fcf_rr_bmask: 4186 kfree(phba->fcf.fcf_rr_bmask); 4187 out_remove_rpi_hdrs: 4188 lpfc_sli4_remove_rpi_hdrs(phba); 4189 out_free_active_sgl: 4190 lpfc_free_active_sgl(phba); 4191 out_free_sgl_list: 4192 lpfc_free_sgl_list(phba); 4193 out_destroy_cq_event_pool: 4194 lpfc_sli4_cq_event_pool_destroy(phba); 4195 out_destroy_queue: 4196 lpfc_sli4_queue_destroy(phba); 4197 out_free_bsmbx: 4198 lpfc_destroy_bootstrap_mbox(phba); 4199 out_free_mem: 4200 lpfc_mem_free(phba); 4201 return rc; 4202 } 4203 4204 /** 4205 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 4206 * @phba: pointer to lpfc hba data structure. 4207 * 4208 * This routine is invoked to unset the driver internal resources set up 4209 * specific for supporting the SLI-4 HBA device it attached to. 4210 **/ 4211 static void 4212 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 4213 { 4214 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4215 4216 /* unregister default FCFI from the HBA */ 4217 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi); 4218 4219 /* Free the default FCR table */ 4220 lpfc_sli_remove_dflt_fcf(phba); 4221 4222 /* Free memory allocated for msi-x interrupt vector entries */ 4223 kfree(phba->sli4_hba.msix_entries); 4224 4225 /* Free memory allocated for fast-path work queue handles */ 4226 kfree(phba->sli4_hba.fcp_eq_hdl); 4227 4228 /* Free the allocated rpi headers. */ 4229 lpfc_sli4_remove_rpi_hdrs(phba); 4230 lpfc_sli4_remove_rpis(phba); 4231 4232 /* Free eligible FCF index bmask */ 4233 kfree(phba->fcf.fcf_rr_bmask); 4234 4235 /* Free the ELS sgl list */ 4236 lpfc_free_active_sgl(phba); 4237 lpfc_free_sgl_list(phba); 4238 4239 /* Free the SCSI sgl management array */ 4240 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4241 4242 /* Free the SLI4 queues */ 4243 lpfc_sli4_queue_destroy(phba); 4244 4245 /* Free the completion queue EQ event pool */ 4246 lpfc_sli4_cq_event_release_all(phba); 4247 lpfc_sli4_cq_event_pool_destroy(phba); 4248 4249 /* Reset SLI4 HBA FCoE function */ 4250 lpfc_pci_function_reset(phba); 4251 4252 /* Free the bsmbx region. */ 4253 lpfc_destroy_bootstrap_mbox(phba); 4254 4255 /* Free the SLI Layer memory with SLI4 HBAs */ 4256 lpfc_mem_free_all(phba); 4257 4258 /* Free the current connect table */ 4259 list_for_each_entry_safe(conn_entry, next_conn_entry, 4260 &phba->fcf_conn_rec_list, list) { 4261 list_del_init(&conn_entry->list); 4262 kfree(conn_entry); 4263 } 4264 4265 return; 4266 } 4267 4268 /** 4269 * lpfc_init_api_table_setup - Set up init api fucntion jump table 4270 * @phba: The hba struct for which this call is being executed. 4271 * @dev_grp: The HBA PCI-Device group number. 4272 * 4273 * This routine sets up the device INIT interface API function jump table 4274 * in @phba struct. 4275 * 4276 * Returns: 0 - success, -ENODEV - failure. 4277 **/ 4278 int 4279 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4280 { 4281 phba->lpfc_hba_init_link = lpfc_hba_init_link; 4282 phba->lpfc_hba_down_link = lpfc_hba_down_link; 4283 switch (dev_grp) { 4284 case LPFC_PCI_DEV_LP: 4285 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 4286 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 4287 phba->lpfc_stop_port = lpfc_stop_port_s3; 4288 break; 4289 case LPFC_PCI_DEV_OC: 4290 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 4291 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 4292 phba->lpfc_stop_port = lpfc_stop_port_s4; 4293 break; 4294 default: 4295 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4296 "1431 Invalid HBA PCI-device group: 0x%x\n", 4297 dev_grp); 4298 return -ENODEV; 4299 break; 4300 } 4301 return 0; 4302 } 4303 4304 /** 4305 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 4306 * @phba: pointer to lpfc hba data structure. 4307 * 4308 * This routine is invoked to set up the driver internal resources before the 4309 * device specific resource setup to support the HBA device it attached to. 4310 * 4311 * Return codes 4312 * 0 - successful 4313 * other values - error 4314 **/ 4315 static int 4316 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 4317 { 4318 /* 4319 * Driver resources common to all SLI revisions 4320 */ 4321 atomic_set(&phba->fast_event_count, 0); 4322 spin_lock_init(&phba->hbalock); 4323 4324 /* Initialize ndlp management spinlock */ 4325 spin_lock_init(&phba->ndlp_lock); 4326 4327 INIT_LIST_HEAD(&phba->port_list); 4328 INIT_LIST_HEAD(&phba->work_list); 4329 init_waitqueue_head(&phba->wait_4_mlo_m_q); 4330 4331 /* Initialize the wait queue head for the kernel thread */ 4332 init_waitqueue_head(&phba->work_waitq); 4333 4334 /* Initialize the scsi buffer list used by driver for scsi IO */ 4335 spin_lock_init(&phba->scsi_buf_list_lock); 4336 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 4337 4338 /* Initialize the fabric iocb list */ 4339 INIT_LIST_HEAD(&phba->fabric_iocb_list); 4340 4341 /* Initialize list to save ELS buffers */ 4342 INIT_LIST_HEAD(&phba->elsbuf); 4343 4344 /* Initialize FCF connection rec list */ 4345 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 4346 4347 return 0; 4348 } 4349 4350 /** 4351 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 4352 * @phba: pointer to lpfc hba data structure. 4353 * 4354 * This routine is invoked to set up the driver internal resources after the 4355 * device specific resource setup to support the HBA device it attached to. 4356 * 4357 * Return codes 4358 * 0 - successful 4359 * other values - error 4360 **/ 4361 static int 4362 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 4363 { 4364 int error; 4365 4366 /* Startup the kernel thread for this host adapter. */ 4367 phba->worker_thread = kthread_run(lpfc_do_work, phba, 4368 "lpfc_worker_%d", phba->brd_no); 4369 if (IS_ERR(phba->worker_thread)) { 4370 error = PTR_ERR(phba->worker_thread); 4371 return error; 4372 } 4373 4374 return 0; 4375 } 4376 4377 /** 4378 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 4379 * @phba: pointer to lpfc hba data structure. 4380 * 4381 * This routine is invoked to unset the driver internal resources set up after 4382 * the device specific resource setup for supporting the HBA device it 4383 * attached to. 4384 **/ 4385 static void 4386 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 4387 { 4388 /* Stop kernel worker thread */ 4389 kthread_stop(phba->worker_thread); 4390 } 4391 4392 /** 4393 * lpfc_free_iocb_list - Free iocb list. 4394 * @phba: pointer to lpfc hba data structure. 4395 * 4396 * This routine is invoked to free the driver's IOCB list and memory. 4397 **/ 4398 static void 4399 lpfc_free_iocb_list(struct lpfc_hba *phba) 4400 { 4401 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 4402 4403 spin_lock_irq(&phba->hbalock); 4404 list_for_each_entry_safe(iocbq_entry, iocbq_next, 4405 &phba->lpfc_iocb_list, list) { 4406 list_del(&iocbq_entry->list); 4407 kfree(iocbq_entry); 4408 phba->total_iocbq_bufs--; 4409 } 4410 spin_unlock_irq(&phba->hbalock); 4411 4412 return; 4413 } 4414 4415 /** 4416 * lpfc_init_iocb_list - Allocate and initialize iocb list. 4417 * @phba: pointer to lpfc hba data structure. 4418 * 4419 * This routine is invoked to allocate and initizlize the driver's IOCB 4420 * list and set up the IOCB tag array accordingly. 4421 * 4422 * Return codes 4423 * 0 - successful 4424 * other values - error 4425 **/ 4426 static int 4427 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 4428 { 4429 struct lpfc_iocbq *iocbq_entry = NULL; 4430 uint16_t iotag; 4431 int i; 4432 4433 /* Initialize and populate the iocb list per host. */ 4434 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 4435 for (i = 0; i < iocb_count; i++) { 4436 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 4437 if (iocbq_entry == NULL) { 4438 printk(KERN_ERR "%s: only allocated %d iocbs of " 4439 "expected %d count. Unloading driver.\n", 4440 __func__, i, LPFC_IOCB_LIST_CNT); 4441 goto out_free_iocbq; 4442 } 4443 4444 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 4445 if (iotag == 0) { 4446 kfree(iocbq_entry); 4447 printk(KERN_ERR "%s: failed to allocate IOTAG. " 4448 "Unloading driver.\n", __func__); 4449 goto out_free_iocbq; 4450 } 4451 iocbq_entry->sli4_xritag = NO_XRI; 4452 4453 spin_lock_irq(&phba->hbalock); 4454 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 4455 phba->total_iocbq_bufs++; 4456 spin_unlock_irq(&phba->hbalock); 4457 } 4458 4459 return 0; 4460 4461 out_free_iocbq: 4462 lpfc_free_iocb_list(phba); 4463 4464 return -ENOMEM; 4465 } 4466 4467 /** 4468 * lpfc_free_sgl_list - Free sgl list. 4469 * @phba: pointer to lpfc hba data structure. 4470 * 4471 * This routine is invoked to free the driver's sgl list and memory. 4472 **/ 4473 static void 4474 lpfc_free_sgl_list(struct lpfc_hba *phba) 4475 { 4476 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 4477 LIST_HEAD(sglq_list); 4478 int rc = 0; 4479 4480 spin_lock_irq(&phba->hbalock); 4481 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 4482 spin_unlock_irq(&phba->hbalock); 4483 4484 list_for_each_entry_safe(sglq_entry, sglq_next, 4485 &sglq_list, list) { 4486 list_del(&sglq_entry->list); 4487 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 4488 kfree(sglq_entry); 4489 phba->sli4_hba.total_sglq_bufs--; 4490 } 4491 rc = lpfc_sli4_remove_all_sgl_pages(phba); 4492 if (rc) { 4493 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4494 "2005 Unable to deregister pages from HBA: %x\n", rc); 4495 } 4496 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4497 } 4498 4499 /** 4500 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 4501 * @phba: pointer to lpfc hba data structure. 4502 * 4503 * This routine is invoked to allocate the driver's active sgl memory. 4504 * This array will hold the sglq_entry's for active IOs. 4505 **/ 4506 static int 4507 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 4508 { 4509 int size; 4510 size = sizeof(struct lpfc_sglq *); 4511 size *= phba->sli4_hba.max_cfg_param.max_xri; 4512 4513 phba->sli4_hba.lpfc_sglq_active_list = 4514 kzalloc(size, GFP_KERNEL); 4515 if (!phba->sli4_hba.lpfc_sglq_active_list) 4516 return -ENOMEM; 4517 return 0; 4518 } 4519 4520 /** 4521 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 4522 * @phba: pointer to lpfc hba data structure. 4523 * 4524 * This routine is invoked to walk through the array of active sglq entries 4525 * and free all of the resources. 4526 * This is just a place holder for now. 4527 **/ 4528 static void 4529 lpfc_free_active_sgl(struct lpfc_hba *phba) 4530 { 4531 kfree(phba->sli4_hba.lpfc_sglq_active_list); 4532 } 4533 4534 /** 4535 * lpfc_init_sgl_list - Allocate and initialize sgl list. 4536 * @phba: pointer to lpfc hba data structure. 4537 * 4538 * This routine is invoked to allocate and initizlize the driver's sgl 4539 * list and set up the sgl xritag tag array accordingly. 4540 * 4541 * Return codes 4542 * 0 - successful 4543 * other values - error 4544 **/ 4545 static int 4546 lpfc_init_sgl_list(struct lpfc_hba *phba) 4547 { 4548 struct lpfc_sglq *sglq_entry = NULL; 4549 int i; 4550 int els_xri_cnt; 4551 4552 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 4553 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4554 "2400 lpfc_init_sgl_list els %d.\n", 4555 els_xri_cnt); 4556 /* Initialize and populate the sglq list per host/VF. */ 4557 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 4558 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 4559 4560 /* Sanity check on XRI management */ 4561 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 4562 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4563 "2562 No room left for SCSI XRI allocation: " 4564 "max_xri=%d, els_xri=%d\n", 4565 phba->sli4_hba.max_cfg_param.max_xri, 4566 els_xri_cnt); 4567 return -ENOMEM; 4568 } 4569 4570 /* Allocate memory for the ELS XRI management array */ 4571 phba->sli4_hba.lpfc_els_sgl_array = 4572 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 4573 GFP_KERNEL); 4574 4575 if (!phba->sli4_hba.lpfc_els_sgl_array) { 4576 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4577 "2401 Failed to allocate memory for ELS " 4578 "XRI management array of size %d.\n", 4579 els_xri_cnt); 4580 return -ENOMEM; 4581 } 4582 4583 /* Keep the SCSI XRI into the XRI management array */ 4584 phba->sli4_hba.scsi_xri_max = 4585 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 4586 phba->sli4_hba.scsi_xri_cnt = 0; 4587 4588 phba->sli4_hba.lpfc_scsi_psb_array = 4589 kzalloc((sizeof(struct lpfc_scsi_buf *) * 4590 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 4591 4592 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 4593 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4594 "2563 Failed to allocate memory for SCSI " 4595 "XRI management array of size %d.\n", 4596 phba->sli4_hba.scsi_xri_max); 4597 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4598 return -ENOMEM; 4599 } 4600 4601 for (i = 0; i < els_xri_cnt; i++) { 4602 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 4603 if (sglq_entry == NULL) { 4604 printk(KERN_ERR "%s: only allocated %d sgls of " 4605 "expected %d count. Unloading driver.\n", 4606 __func__, i, els_xri_cnt); 4607 goto out_free_mem; 4608 } 4609 4610 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba); 4611 if (sglq_entry->sli4_xritag == NO_XRI) { 4612 kfree(sglq_entry); 4613 printk(KERN_ERR "%s: failed to allocate XRI.\n" 4614 "Unloading driver.\n", __func__); 4615 goto out_free_mem; 4616 } 4617 sglq_entry->buff_type = GEN_BUFF_TYPE; 4618 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 4619 if (sglq_entry->virt == NULL) { 4620 kfree(sglq_entry); 4621 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 4622 "Unloading driver.\n", __func__); 4623 goto out_free_mem; 4624 } 4625 sglq_entry->sgl = sglq_entry->virt; 4626 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 4627 4628 /* The list order is used by later block SGL registraton */ 4629 spin_lock_irq(&phba->hbalock); 4630 sglq_entry->state = SGL_FREED; 4631 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 4632 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 4633 phba->sli4_hba.total_sglq_bufs++; 4634 spin_unlock_irq(&phba->hbalock); 4635 } 4636 return 0; 4637 4638 out_free_mem: 4639 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4640 lpfc_free_sgl_list(phba); 4641 return -ENOMEM; 4642 } 4643 4644 /** 4645 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 4646 * @phba: pointer to lpfc hba data structure. 4647 * 4648 * This routine is invoked to post rpi header templates to the 4649 * HBA consistent with the SLI-4 interface spec. This routine 4650 * posts a PAGE_SIZE memory region to the port to hold up to 4651 * PAGE_SIZE modulo 64 rpi context headers. 4652 * No locks are held here because this is an initialization routine 4653 * called only from probe or lpfc_online when interrupts are not 4654 * enabled and the driver is reinitializing the device. 4655 * 4656 * Return codes 4657 * 0 - successful 4658 * ENOMEM - No availble memory 4659 * EIO - The mailbox failed to complete successfully. 4660 **/ 4661 int 4662 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 4663 { 4664 int rc = 0; 4665 int longs; 4666 uint16_t rpi_count; 4667 struct lpfc_rpi_hdr *rpi_hdr; 4668 4669 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 4670 4671 /* 4672 * Provision an rpi bitmask range for discovery. The total count 4673 * is the difference between max and base + 1. 4674 */ 4675 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base + 4676 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4677 4678 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG; 4679 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long), 4680 GFP_KERNEL); 4681 if (!phba->sli4_hba.rpi_bmask) 4682 return -ENOMEM; 4683 4684 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 4685 if (!rpi_hdr) { 4686 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 4687 "0391 Error during rpi post operation\n"); 4688 lpfc_sli4_remove_rpis(phba); 4689 rc = -ENODEV; 4690 } 4691 4692 return rc; 4693 } 4694 4695 /** 4696 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 4697 * @phba: pointer to lpfc hba data structure. 4698 * 4699 * This routine is invoked to allocate a single 4KB memory region to 4700 * support rpis and stores them in the phba. This single region 4701 * provides support for up to 64 rpis. The region is used globally 4702 * by the device. 4703 * 4704 * Returns: 4705 * A valid rpi hdr on success. 4706 * A NULL pointer on any failure. 4707 **/ 4708 struct lpfc_rpi_hdr * 4709 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 4710 { 4711 uint16_t rpi_limit, curr_rpi_range; 4712 struct lpfc_dmabuf *dmabuf; 4713 struct lpfc_rpi_hdr *rpi_hdr; 4714 4715 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 4716 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4717 4718 spin_lock_irq(&phba->hbalock); 4719 curr_rpi_range = phba->sli4_hba.next_rpi; 4720 spin_unlock_irq(&phba->hbalock); 4721 4722 /* 4723 * The port has a limited number of rpis. The increment here 4724 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 4725 * and to allow the full max_rpi range per port. 4726 */ 4727 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 4728 return NULL; 4729 4730 /* 4731 * First allocate the protocol header region for the port. The 4732 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 4733 */ 4734 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4735 if (!dmabuf) 4736 return NULL; 4737 4738 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4739 LPFC_HDR_TEMPLATE_SIZE, 4740 &dmabuf->phys, 4741 GFP_KERNEL); 4742 if (!dmabuf->virt) { 4743 rpi_hdr = NULL; 4744 goto err_free_dmabuf; 4745 } 4746 4747 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 4748 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 4749 rpi_hdr = NULL; 4750 goto err_free_coherent; 4751 } 4752 4753 /* Save the rpi header data for cleanup later. */ 4754 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 4755 if (!rpi_hdr) 4756 goto err_free_coherent; 4757 4758 rpi_hdr->dmabuf = dmabuf; 4759 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 4760 rpi_hdr->page_count = 1; 4761 spin_lock_irq(&phba->hbalock); 4762 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi; 4763 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 4764 4765 /* 4766 * The next_rpi stores the next module-64 rpi value to post 4767 * in any subsequent rpi memory region postings. 4768 */ 4769 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT; 4770 spin_unlock_irq(&phba->hbalock); 4771 return rpi_hdr; 4772 4773 err_free_coherent: 4774 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 4775 dmabuf->virt, dmabuf->phys); 4776 err_free_dmabuf: 4777 kfree(dmabuf); 4778 return NULL; 4779 } 4780 4781 /** 4782 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 4783 * @phba: pointer to lpfc hba data structure. 4784 * 4785 * This routine is invoked to remove all memory resources allocated 4786 * to support rpis. This routine presumes the caller has released all 4787 * rpis consumed by fabric or port logins and is prepared to have 4788 * the header pages removed. 4789 **/ 4790 void 4791 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 4792 { 4793 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 4794 4795 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 4796 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 4797 list_del(&rpi_hdr->list); 4798 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 4799 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 4800 kfree(rpi_hdr->dmabuf); 4801 kfree(rpi_hdr); 4802 } 4803 4804 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4805 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask)); 4806 } 4807 4808 /** 4809 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 4810 * @pdev: pointer to pci device data structure. 4811 * 4812 * This routine is invoked to allocate the driver hba data structure for an 4813 * HBA device. If the allocation is successful, the phba reference to the 4814 * PCI device data structure is set. 4815 * 4816 * Return codes 4817 * pointer to @phba - successful 4818 * NULL - error 4819 **/ 4820 static struct lpfc_hba * 4821 lpfc_hba_alloc(struct pci_dev *pdev) 4822 { 4823 struct lpfc_hba *phba; 4824 4825 /* Allocate memory for HBA structure */ 4826 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 4827 if (!phba) { 4828 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 4829 return NULL; 4830 } 4831 4832 /* Set reference to PCI device in HBA structure */ 4833 phba->pcidev = pdev; 4834 4835 /* Assign an unused board number */ 4836 phba->brd_no = lpfc_get_instance(); 4837 if (phba->brd_no < 0) { 4838 kfree(phba); 4839 return NULL; 4840 } 4841 4842 spin_lock_init(&phba->ct_ev_lock); 4843 INIT_LIST_HEAD(&phba->ct_ev_waiters); 4844 4845 return phba; 4846 } 4847 4848 /** 4849 * lpfc_hba_free - Free driver hba data structure with a device. 4850 * @phba: pointer to lpfc hba data structure. 4851 * 4852 * This routine is invoked to free the driver hba data structure with an 4853 * HBA device. 4854 **/ 4855 static void 4856 lpfc_hba_free(struct lpfc_hba *phba) 4857 { 4858 /* Release the driver assigned board number */ 4859 idr_remove(&lpfc_hba_index, phba->brd_no); 4860 4861 kfree(phba); 4862 return; 4863 } 4864 4865 /** 4866 * lpfc_create_shost - Create hba physical port with associated scsi host. 4867 * @phba: pointer to lpfc hba data structure. 4868 * 4869 * This routine is invoked to create HBA physical port and associate a SCSI 4870 * host with it. 4871 * 4872 * Return codes 4873 * 0 - successful 4874 * other values - error 4875 **/ 4876 static int 4877 lpfc_create_shost(struct lpfc_hba *phba) 4878 { 4879 struct lpfc_vport *vport; 4880 struct Scsi_Host *shost; 4881 4882 /* Initialize HBA FC structure */ 4883 phba->fc_edtov = FF_DEF_EDTOV; 4884 phba->fc_ratov = FF_DEF_RATOV; 4885 phba->fc_altov = FF_DEF_ALTOV; 4886 phba->fc_arbtov = FF_DEF_ARBTOV; 4887 4888 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 4889 if (!vport) 4890 return -ENODEV; 4891 4892 shost = lpfc_shost_from_vport(vport); 4893 phba->pport = vport; 4894 lpfc_debugfs_initialize(vport); 4895 /* Put reference to SCSI host to driver's device private data */ 4896 pci_set_drvdata(phba->pcidev, shost); 4897 4898 return 0; 4899 } 4900 4901 /** 4902 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 4903 * @phba: pointer to lpfc hba data structure. 4904 * 4905 * This routine is invoked to destroy HBA physical port and the associated 4906 * SCSI host. 4907 **/ 4908 static void 4909 lpfc_destroy_shost(struct lpfc_hba *phba) 4910 { 4911 struct lpfc_vport *vport = phba->pport; 4912 4913 /* Destroy physical port that associated with the SCSI host */ 4914 destroy_port(vport); 4915 4916 return; 4917 } 4918 4919 /** 4920 * lpfc_setup_bg - Setup Block guard structures and debug areas. 4921 * @phba: pointer to lpfc hba data structure. 4922 * @shost: the shost to be used to detect Block guard settings. 4923 * 4924 * This routine sets up the local Block guard protocol settings for @shost. 4925 * This routine also allocates memory for debugging bg buffers. 4926 **/ 4927 static void 4928 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 4929 { 4930 int pagecnt = 10; 4931 if (lpfc_prot_mask && lpfc_prot_guard) { 4932 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4933 "1478 Registering BlockGuard with the " 4934 "SCSI layer\n"); 4935 scsi_host_set_prot(shost, lpfc_prot_mask); 4936 scsi_host_set_guard(shost, lpfc_prot_guard); 4937 } 4938 if (!_dump_buf_data) { 4939 while (pagecnt) { 4940 spin_lock_init(&_dump_buf_lock); 4941 _dump_buf_data = 4942 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4943 if (_dump_buf_data) { 4944 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4945 "9043 BLKGRD: allocated %d pages for " 4946 "_dump_buf_data at 0x%p\n", 4947 (1 << pagecnt), _dump_buf_data); 4948 _dump_buf_data_order = pagecnt; 4949 memset(_dump_buf_data, 0, 4950 ((1 << PAGE_SHIFT) << pagecnt)); 4951 break; 4952 } else 4953 --pagecnt; 4954 } 4955 if (!_dump_buf_data_order) 4956 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4957 "9044 BLKGRD: ERROR unable to allocate " 4958 "memory for hexdump\n"); 4959 } else 4960 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4961 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 4962 "\n", _dump_buf_data); 4963 if (!_dump_buf_dif) { 4964 while (pagecnt) { 4965 _dump_buf_dif = 4966 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4967 if (_dump_buf_dif) { 4968 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4969 "9046 BLKGRD: allocated %d pages for " 4970 "_dump_buf_dif at 0x%p\n", 4971 (1 << pagecnt), _dump_buf_dif); 4972 _dump_buf_dif_order = pagecnt; 4973 memset(_dump_buf_dif, 0, 4974 ((1 << PAGE_SHIFT) << pagecnt)); 4975 break; 4976 } else 4977 --pagecnt; 4978 } 4979 if (!_dump_buf_dif_order) 4980 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4981 "9047 BLKGRD: ERROR unable to allocate " 4982 "memory for hexdump\n"); 4983 } else 4984 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4985 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 4986 _dump_buf_dif); 4987 } 4988 4989 /** 4990 * lpfc_post_init_setup - Perform necessary device post initialization setup. 4991 * @phba: pointer to lpfc hba data structure. 4992 * 4993 * This routine is invoked to perform all the necessary post initialization 4994 * setup for the device. 4995 **/ 4996 static void 4997 lpfc_post_init_setup(struct lpfc_hba *phba) 4998 { 4999 struct Scsi_Host *shost; 5000 struct lpfc_adapter_event_header adapter_event; 5001 5002 /* Get the default values for Model Name and Description */ 5003 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5004 5005 /* 5006 * hba setup may have changed the hba_queue_depth so we need to 5007 * adjust the value of can_queue. 5008 */ 5009 shost = pci_get_drvdata(phba->pcidev); 5010 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5011 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5012 lpfc_setup_bg(phba, shost); 5013 5014 lpfc_host_attrib_init(shost); 5015 5016 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5017 spin_lock_irq(shost->host_lock); 5018 lpfc_poll_start_timer(phba); 5019 spin_unlock_irq(shost->host_lock); 5020 } 5021 5022 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5023 "0428 Perform SCSI scan\n"); 5024 /* Send board arrival event to upper layer */ 5025 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5026 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5027 fc_host_post_vendor_event(shost, fc_get_event_number(), 5028 sizeof(adapter_event), 5029 (char *) &adapter_event, 5030 LPFC_NL_VENDOR_ID); 5031 return; 5032 } 5033 5034 /** 5035 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5036 * @phba: pointer to lpfc hba data structure. 5037 * 5038 * This routine is invoked to set up the PCI device memory space for device 5039 * with SLI-3 interface spec. 5040 * 5041 * Return codes 5042 * 0 - successful 5043 * other values - error 5044 **/ 5045 static int 5046 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5047 { 5048 struct pci_dev *pdev; 5049 unsigned long bar0map_len, bar2map_len; 5050 int i, hbq_count; 5051 void *ptr; 5052 int error = -ENODEV; 5053 5054 /* Obtain PCI device reference */ 5055 if (!phba->pcidev) 5056 return error; 5057 else 5058 pdev = phba->pcidev; 5059 5060 /* Set the device DMA mask size */ 5061 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5062 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5063 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5064 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5065 return error; 5066 } 5067 } 5068 5069 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5070 * required by each mapping. 5071 */ 5072 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5073 bar0map_len = pci_resource_len(pdev, 0); 5074 5075 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5076 bar2map_len = pci_resource_len(pdev, 2); 5077 5078 /* Map HBA SLIM to a kernel virtual address. */ 5079 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5080 if (!phba->slim_memmap_p) { 5081 dev_printk(KERN_ERR, &pdev->dev, 5082 "ioremap failed for SLIM memory.\n"); 5083 goto out; 5084 } 5085 5086 /* Map HBA Control Registers to a kernel virtual address. */ 5087 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5088 if (!phba->ctrl_regs_memmap_p) { 5089 dev_printk(KERN_ERR, &pdev->dev, 5090 "ioremap failed for HBA control registers.\n"); 5091 goto out_iounmap_slim; 5092 } 5093 5094 /* Allocate memory for SLI-2 structures */ 5095 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5096 SLI2_SLIM_SIZE, 5097 &phba->slim2p.phys, 5098 GFP_KERNEL); 5099 if (!phba->slim2p.virt) 5100 goto out_iounmap; 5101 5102 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5103 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5104 phba->mbox_ext = (phba->slim2p.virt + 5105 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5106 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5107 phba->IOCBs = (phba->slim2p.virt + 5108 offsetof(struct lpfc_sli2_slim, IOCBs)); 5109 5110 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5111 lpfc_sli_hbq_size(), 5112 &phba->hbqslimp.phys, 5113 GFP_KERNEL); 5114 if (!phba->hbqslimp.virt) 5115 goto out_free_slim; 5116 5117 hbq_count = lpfc_sli_hbq_count(); 5118 ptr = phba->hbqslimp.virt; 5119 for (i = 0; i < hbq_count; ++i) { 5120 phba->hbqs[i].hbq_virt = ptr; 5121 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5122 ptr += (lpfc_hbq_defs[i]->entry_count * 5123 sizeof(struct lpfc_hbq_entry)); 5124 } 5125 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5126 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5127 5128 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5129 5130 INIT_LIST_HEAD(&phba->rb_pend_list); 5131 5132 phba->MBslimaddr = phba->slim_memmap_p; 5133 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 5134 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 5135 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 5136 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 5137 5138 return 0; 5139 5140 out_free_slim: 5141 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5142 phba->slim2p.virt, phba->slim2p.phys); 5143 out_iounmap: 5144 iounmap(phba->ctrl_regs_memmap_p); 5145 out_iounmap_slim: 5146 iounmap(phba->slim_memmap_p); 5147 out: 5148 return error; 5149 } 5150 5151 /** 5152 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 5153 * @phba: pointer to lpfc hba data structure. 5154 * 5155 * This routine is invoked to unset the PCI device memory space for device 5156 * with SLI-3 interface spec. 5157 **/ 5158 static void 5159 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 5160 { 5161 struct pci_dev *pdev; 5162 5163 /* Obtain PCI device reference */ 5164 if (!phba->pcidev) 5165 return; 5166 else 5167 pdev = phba->pcidev; 5168 5169 /* Free coherent DMA memory allocated */ 5170 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 5171 phba->hbqslimp.virt, phba->hbqslimp.phys); 5172 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5173 phba->slim2p.virt, phba->slim2p.phys); 5174 5175 /* I/O memory unmap */ 5176 iounmap(phba->ctrl_regs_memmap_p); 5177 iounmap(phba->slim_memmap_p); 5178 5179 return; 5180 } 5181 5182 /** 5183 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 5184 * @phba: pointer to lpfc hba data structure. 5185 * 5186 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 5187 * done and check status. 5188 * 5189 * Return 0 if successful, otherwise -ENODEV. 5190 **/ 5191 int 5192 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 5193 { 5194 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg; 5195 int i, port_error = -ENODEV; 5196 5197 if (!phba->sli4_hba.STAregaddr) 5198 return -ENODEV; 5199 5200 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 5201 for (i = 0; i < 3000; i++) { 5202 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr); 5203 /* Encounter fatal POST error, break out */ 5204 if (bf_get(lpfc_hst_state_perr, &sta_reg)) { 5205 port_error = -ENODEV; 5206 break; 5207 } 5208 if (LPFC_POST_STAGE_ARMFW_READY == 5209 bf_get(lpfc_hst_state_port_status, &sta_reg)) { 5210 port_error = 0; 5211 break; 5212 } 5213 msleep(10); 5214 } 5215 5216 if (port_error) 5217 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5218 "1408 Failure HBA POST Status: sta_reg=0x%x, " 5219 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, " 5220 "dl=x%x, pstatus=x%x\n", sta_reg.word0, 5221 bf_get(lpfc_hst_state_perr, &sta_reg), 5222 bf_get(lpfc_hst_state_sfi, &sta_reg), 5223 bf_get(lpfc_hst_state_nip, &sta_reg), 5224 bf_get(lpfc_hst_state_ipc, &sta_reg), 5225 bf_get(lpfc_hst_state_xrom, &sta_reg), 5226 bf_get(lpfc_hst_state_dl, &sta_reg), 5227 bf_get(lpfc_hst_state_port_status, &sta_reg)); 5228 5229 /* Log device information */ 5230 phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr); 5231 if (bf_get(lpfc_sli_intf_valid, 5232 &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) { 5233 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5234 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, " 5235 "FeatureL1=0x%x, FeatureL2=0x%x\n", 5236 bf_get(lpfc_sli_intf_sli_family, 5237 &phba->sli4_hba.sli_intf), 5238 bf_get(lpfc_sli_intf_slirev, 5239 &phba->sli4_hba.sli_intf), 5240 bf_get(lpfc_sli_intf_featurelevel1, 5241 &phba->sli4_hba.sli_intf), 5242 bf_get(lpfc_sli_intf_featurelevel2, 5243 &phba->sli4_hba.sli_intf)); 5244 } 5245 phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr); 5246 phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr); 5247 /* With uncoverable error, log the error message and return error */ 5248 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr); 5249 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr); 5250 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 5251 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 5252 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5253 "1422 HBA Unrecoverable error: " 5254 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " 5255 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n", 5256 uerrlo_reg.word0, uerrhi_reg.word0, 5257 phba->sli4_hba.ue_mask_lo, 5258 phba->sli4_hba.ue_mask_hi); 5259 return -ENODEV; 5260 } 5261 5262 return port_error; 5263 } 5264 5265 /** 5266 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 5267 * @phba: pointer to lpfc hba data structure. 5268 * 5269 * This routine is invoked to set up SLI4 BAR0 PCI config space register 5270 * memory map. 5271 **/ 5272 static void 5273 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba) 5274 { 5275 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 5276 LPFC_UERR_STATUS_LO; 5277 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 5278 LPFC_UERR_STATUS_HI; 5279 phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 5280 LPFC_UE_MASK_LO; 5281 phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 5282 LPFC_UE_MASK_HI; 5283 phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p + 5284 LPFC_SLI_INTF; 5285 } 5286 5287 /** 5288 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 5289 * @phba: pointer to lpfc hba data structure. 5290 * 5291 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 5292 * memory map. 5293 **/ 5294 static void 5295 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 5296 { 5297 5298 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5299 LPFC_HST_STATE; 5300 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5301 LPFC_HST_ISR0; 5302 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5303 LPFC_HST_IMR0; 5304 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5305 LPFC_HST_ISCR0; 5306 return; 5307 } 5308 5309 /** 5310 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 5311 * @phba: pointer to lpfc hba data structure. 5312 * @vf: virtual function number 5313 * 5314 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 5315 * based on the given viftual function number, @vf. 5316 * 5317 * Return 0 if successful, otherwise -ENODEV. 5318 **/ 5319 static int 5320 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 5321 { 5322 if (vf > LPFC_VIR_FUNC_MAX) 5323 return -ENODEV; 5324 5325 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5326 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 5327 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5328 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 5329 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5330 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 5331 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5332 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 5333 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5334 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 5335 return 0; 5336 } 5337 5338 /** 5339 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 5340 * @phba: pointer to lpfc hba data structure. 5341 * 5342 * This routine is invoked to create the bootstrap mailbox 5343 * region consistent with the SLI-4 interface spec. This 5344 * routine allocates all memory necessary to communicate 5345 * mailbox commands to the port and sets up all alignment 5346 * needs. No locks are expected to be held when calling 5347 * this routine. 5348 * 5349 * Return codes 5350 * 0 - successful 5351 * ENOMEM - could not allocated memory. 5352 **/ 5353 static int 5354 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 5355 { 5356 uint32_t bmbx_size; 5357 struct lpfc_dmabuf *dmabuf; 5358 struct dma_address *dma_address; 5359 uint32_t pa_addr; 5360 uint64_t phys_addr; 5361 5362 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5363 if (!dmabuf) 5364 return -ENOMEM; 5365 5366 /* 5367 * The bootstrap mailbox region is comprised of 2 parts 5368 * plus an alignment restriction of 16 bytes. 5369 */ 5370 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 5371 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5372 bmbx_size, 5373 &dmabuf->phys, 5374 GFP_KERNEL); 5375 if (!dmabuf->virt) { 5376 kfree(dmabuf); 5377 return -ENOMEM; 5378 } 5379 memset(dmabuf->virt, 0, bmbx_size); 5380 5381 /* 5382 * Initialize the bootstrap mailbox pointers now so that the register 5383 * operations are simple later. The mailbox dma address is required 5384 * to be 16-byte aligned. Also align the virtual memory as each 5385 * maibox is copied into the bmbx mailbox region before issuing the 5386 * command to the port. 5387 */ 5388 phba->sli4_hba.bmbx.dmabuf = dmabuf; 5389 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 5390 5391 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 5392 LPFC_ALIGN_16_BYTE); 5393 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 5394 LPFC_ALIGN_16_BYTE); 5395 5396 /* 5397 * Set the high and low physical addresses now. The SLI4 alignment 5398 * requirement is 16 bytes and the mailbox is posted to the port 5399 * as two 30-bit addresses. The other data is a bit marking whether 5400 * the 30-bit address is the high or low address. 5401 * Upcast bmbx aphys to 64bits so shift instruction compiles 5402 * clean on 32 bit machines. 5403 */ 5404 dma_address = &phba->sli4_hba.bmbx.dma_address; 5405 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 5406 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 5407 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 5408 LPFC_BMBX_BIT1_ADDR_HI); 5409 5410 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 5411 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 5412 LPFC_BMBX_BIT1_ADDR_LO); 5413 return 0; 5414 } 5415 5416 /** 5417 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 5418 * @phba: pointer to lpfc hba data structure. 5419 * 5420 * This routine is invoked to teardown the bootstrap mailbox 5421 * region and release all host resources. This routine requires 5422 * the caller to ensure all mailbox commands recovered, no 5423 * additional mailbox comands are sent, and interrupts are disabled 5424 * before calling this routine. 5425 * 5426 **/ 5427 static void 5428 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 5429 { 5430 dma_free_coherent(&phba->pcidev->dev, 5431 phba->sli4_hba.bmbx.bmbx_size, 5432 phba->sli4_hba.bmbx.dmabuf->virt, 5433 phba->sli4_hba.bmbx.dmabuf->phys); 5434 5435 kfree(phba->sli4_hba.bmbx.dmabuf); 5436 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 5437 } 5438 5439 /** 5440 * lpfc_sli4_read_config - Get the config parameters. 5441 * @phba: pointer to lpfc hba data structure. 5442 * 5443 * This routine is invoked to read the configuration parameters from the HBA. 5444 * The configuration parameters are used to set the base and maximum values 5445 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 5446 * allocation for the port. 5447 * 5448 * Return codes 5449 * 0 - successful 5450 * ENOMEM - No availble memory 5451 * EIO - The mailbox failed to complete successfully. 5452 **/ 5453 static int 5454 lpfc_sli4_read_config(struct lpfc_hba *phba) 5455 { 5456 LPFC_MBOXQ_t *pmb; 5457 struct lpfc_mbx_read_config *rd_config; 5458 uint32_t rc = 0; 5459 5460 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5461 if (!pmb) { 5462 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5463 "2011 Unable to allocate memory for issuing " 5464 "SLI_CONFIG_SPECIAL mailbox command\n"); 5465 return -ENOMEM; 5466 } 5467 5468 lpfc_read_config(phba, pmb); 5469 5470 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 5471 if (rc != MBX_SUCCESS) { 5472 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5473 "2012 Mailbox failed , mbxCmd x%x " 5474 "READ_CONFIG, mbxStatus x%x\n", 5475 bf_get(lpfc_mqe_command, &pmb->u.mqe), 5476 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 5477 rc = -EIO; 5478 } else { 5479 rd_config = &pmb->u.mqe.un.rd_config; 5480 phba->sli4_hba.max_cfg_param.max_xri = 5481 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 5482 phba->sli4_hba.max_cfg_param.xri_base = 5483 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 5484 phba->sli4_hba.max_cfg_param.max_vpi = 5485 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 5486 phba->sli4_hba.max_cfg_param.vpi_base = 5487 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 5488 phba->sli4_hba.max_cfg_param.max_rpi = 5489 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 5490 phba->sli4_hba.max_cfg_param.rpi_base = 5491 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 5492 phba->sli4_hba.max_cfg_param.max_vfi = 5493 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 5494 phba->sli4_hba.max_cfg_param.vfi_base = 5495 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 5496 phba->sli4_hba.max_cfg_param.max_fcfi = 5497 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 5498 phba->sli4_hba.max_cfg_param.fcfi_base = 5499 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config); 5500 phba->sli4_hba.max_cfg_param.max_eq = 5501 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 5502 phba->sli4_hba.max_cfg_param.max_rq = 5503 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 5504 phba->sli4_hba.max_cfg_param.max_wq = 5505 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 5506 phba->sli4_hba.max_cfg_param.max_cq = 5507 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 5508 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 5509 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 5510 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 5511 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 5512 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 5513 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 5514 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 5515 phba->max_vports = phba->max_vpi; 5516 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5517 "2003 cfg params XRI(B:%d M:%d), " 5518 "VPI(B:%d M:%d) " 5519 "VFI(B:%d M:%d) " 5520 "RPI(B:%d M:%d) " 5521 "FCFI(B:%d M:%d)\n", 5522 phba->sli4_hba.max_cfg_param.xri_base, 5523 phba->sli4_hba.max_cfg_param.max_xri, 5524 phba->sli4_hba.max_cfg_param.vpi_base, 5525 phba->sli4_hba.max_cfg_param.max_vpi, 5526 phba->sli4_hba.max_cfg_param.vfi_base, 5527 phba->sli4_hba.max_cfg_param.max_vfi, 5528 phba->sli4_hba.max_cfg_param.rpi_base, 5529 phba->sli4_hba.max_cfg_param.max_rpi, 5530 phba->sli4_hba.max_cfg_param.fcfi_base, 5531 phba->sli4_hba.max_cfg_param.max_fcfi); 5532 } 5533 mempool_free(pmb, phba->mbox_mem_pool); 5534 5535 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 5536 if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri)) 5537 phba->cfg_hba_queue_depth = 5538 phba->sli4_hba.max_cfg_param.max_xri; 5539 return rc; 5540 } 5541 5542 /** 5543 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order. 5544 * @phba: pointer to lpfc hba data structure. 5545 * 5546 * This routine is invoked to setup the host-side endian order to the 5547 * HBA consistent with the SLI-4 interface spec. 5548 * 5549 * Return codes 5550 * 0 - successful 5551 * ENOMEM - No availble memory 5552 * EIO - The mailbox failed to complete successfully. 5553 **/ 5554 static int 5555 lpfc_setup_endian_order(struct lpfc_hba *phba) 5556 { 5557 LPFC_MBOXQ_t *mboxq; 5558 uint32_t rc = 0; 5559 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 5560 HOST_ENDIAN_HIGH_WORD1}; 5561 5562 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5563 if (!mboxq) { 5564 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5565 "0492 Unable to allocate memory for issuing " 5566 "SLI_CONFIG_SPECIAL mailbox command\n"); 5567 return -ENOMEM; 5568 } 5569 5570 /* 5571 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two 5572 * words to contain special data values and no other data. 5573 */ 5574 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 5575 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 5576 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5577 if (rc != MBX_SUCCESS) { 5578 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5579 "0493 SLI_CONFIG_SPECIAL mailbox failed with " 5580 "status x%x\n", 5581 rc); 5582 rc = -EIO; 5583 } 5584 5585 mempool_free(mboxq, phba->mbox_mem_pool); 5586 return rc; 5587 } 5588 5589 /** 5590 * lpfc_sli4_queue_create - Create all the SLI4 queues 5591 * @phba: pointer to lpfc hba data structure. 5592 * 5593 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 5594 * operation. For each SLI4 queue type, the parameters such as queue entry 5595 * count (queue depth) shall be taken from the module parameter. For now, 5596 * we just use some constant number as place holder. 5597 * 5598 * Return codes 5599 * 0 - successful 5600 * ENOMEM - No availble memory 5601 * EIO - The mailbox failed to complete successfully. 5602 **/ 5603 static int 5604 lpfc_sli4_queue_create(struct lpfc_hba *phba) 5605 { 5606 struct lpfc_queue *qdesc; 5607 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5608 int cfg_fcp_wq_count; 5609 int cfg_fcp_eq_count; 5610 5611 /* 5612 * Sanity check for confiugred queue parameters against the run-time 5613 * device parameters 5614 */ 5615 5616 /* Sanity check on FCP fast-path WQ parameters */ 5617 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 5618 if (cfg_fcp_wq_count > 5619 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 5620 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 5621 LPFC_SP_WQN_DEF; 5622 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 5623 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5624 "2581 Not enough WQs (%d) from " 5625 "the pci function for supporting " 5626 "FCP WQs (%d)\n", 5627 phba->sli4_hba.max_cfg_param.max_wq, 5628 phba->cfg_fcp_wq_count); 5629 goto out_error; 5630 } 5631 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5632 "2582 Not enough WQs (%d) from the pci " 5633 "function for supporting the requested " 5634 "FCP WQs (%d), the actual FCP WQs can " 5635 "be supported: %d\n", 5636 phba->sli4_hba.max_cfg_param.max_wq, 5637 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 5638 } 5639 /* The actual number of FCP work queues adopted */ 5640 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 5641 5642 /* Sanity check on FCP fast-path EQ parameters */ 5643 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 5644 if (cfg_fcp_eq_count > 5645 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 5646 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 5647 LPFC_SP_EQN_DEF; 5648 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 5649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5650 "2574 Not enough EQs (%d) from the " 5651 "pci function for supporting FCP " 5652 "EQs (%d)\n", 5653 phba->sli4_hba.max_cfg_param.max_eq, 5654 phba->cfg_fcp_eq_count); 5655 goto out_error; 5656 } 5657 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5658 "2575 Not enough EQs (%d) from the pci " 5659 "function for supporting the requested " 5660 "FCP EQs (%d), the actual FCP EQs can " 5661 "be supported: %d\n", 5662 phba->sli4_hba.max_cfg_param.max_eq, 5663 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 5664 } 5665 /* It does not make sense to have more EQs than WQs */ 5666 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 5667 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5668 "2593 The FCP EQ count(%d) cannot be greater " 5669 "than the FCP WQ count(%d), limiting the " 5670 "FCP EQ count to %d\n", cfg_fcp_eq_count, 5671 phba->cfg_fcp_wq_count, 5672 phba->cfg_fcp_wq_count); 5673 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 5674 } 5675 /* The actual number of FCP event queues adopted */ 5676 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 5677 /* The overall number of event queues used */ 5678 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 5679 5680 /* 5681 * Create Event Queues (EQs) 5682 */ 5683 5684 /* Get EQ depth from module parameter, fake the default for now */ 5685 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 5686 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 5687 5688 /* Create slow path event queue */ 5689 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5690 phba->sli4_hba.eq_ecount); 5691 if (!qdesc) { 5692 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5693 "0496 Failed allocate slow-path EQ\n"); 5694 goto out_error; 5695 } 5696 phba->sli4_hba.sp_eq = qdesc; 5697 5698 /* Create fast-path FCP Event Queue(s) */ 5699 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 5700 phba->cfg_fcp_eq_count), GFP_KERNEL); 5701 if (!phba->sli4_hba.fp_eq) { 5702 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5703 "2576 Failed allocate memory for fast-path " 5704 "EQ record array\n"); 5705 goto out_free_sp_eq; 5706 } 5707 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5708 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5709 phba->sli4_hba.eq_ecount); 5710 if (!qdesc) { 5711 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5712 "0497 Failed allocate fast-path EQ\n"); 5713 goto out_free_fp_eq; 5714 } 5715 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 5716 } 5717 5718 /* 5719 * Create Complete Queues (CQs) 5720 */ 5721 5722 /* Get CQ depth from module parameter, fake the default for now */ 5723 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 5724 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 5725 5726 /* Create slow-path Mailbox Command Complete Queue */ 5727 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5728 phba->sli4_hba.cq_ecount); 5729 if (!qdesc) { 5730 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5731 "0500 Failed allocate slow-path mailbox CQ\n"); 5732 goto out_free_fp_eq; 5733 } 5734 phba->sli4_hba.mbx_cq = qdesc; 5735 5736 /* Create slow-path ELS Complete Queue */ 5737 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5738 phba->sli4_hba.cq_ecount); 5739 if (!qdesc) { 5740 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5741 "0501 Failed allocate slow-path ELS CQ\n"); 5742 goto out_free_mbx_cq; 5743 } 5744 phba->sli4_hba.els_cq = qdesc; 5745 5746 5747 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ 5748 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 5749 phba->cfg_fcp_eq_count), GFP_KERNEL); 5750 if (!phba->sli4_hba.fcp_cq) { 5751 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5752 "2577 Failed allocate memory for fast-path " 5753 "CQ record array\n"); 5754 goto out_free_els_cq; 5755 } 5756 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5757 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5758 phba->sli4_hba.cq_ecount); 5759 if (!qdesc) { 5760 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5761 "0499 Failed allocate fast-path FCP " 5762 "CQ (%d)\n", fcp_cqidx); 5763 goto out_free_fcp_cq; 5764 } 5765 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 5766 } 5767 5768 /* Create Mailbox Command Queue */ 5769 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 5770 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 5771 5772 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 5773 phba->sli4_hba.mq_ecount); 5774 if (!qdesc) { 5775 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5776 "0505 Failed allocate slow-path MQ\n"); 5777 goto out_free_fcp_cq; 5778 } 5779 phba->sli4_hba.mbx_wq = qdesc; 5780 5781 /* 5782 * Create all the Work Queues (WQs) 5783 */ 5784 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 5785 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 5786 5787 /* Create slow-path ELS Work Queue */ 5788 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5789 phba->sli4_hba.wq_ecount); 5790 if (!qdesc) { 5791 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5792 "0504 Failed allocate slow-path ELS WQ\n"); 5793 goto out_free_mbx_wq; 5794 } 5795 phba->sli4_hba.els_wq = qdesc; 5796 5797 /* Create fast-path FCP Work Queue(s) */ 5798 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 5799 phba->cfg_fcp_wq_count), GFP_KERNEL); 5800 if (!phba->sli4_hba.fcp_wq) { 5801 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5802 "2578 Failed allocate memory for fast-path " 5803 "WQ record array\n"); 5804 goto out_free_els_wq; 5805 } 5806 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5807 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5808 phba->sli4_hba.wq_ecount); 5809 if (!qdesc) { 5810 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5811 "0503 Failed allocate fast-path FCP " 5812 "WQ (%d)\n", fcp_wqidx); 5813 goto out_free_fcp_wq; 5814 } 5815 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 5816 } 5817 5818 /* 5819 * Create Receive Queue (RQ) 5820 */ 5821 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 5822 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 5823 5824 /* Create Receive Queue for header */ 5825 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5826 phba->sli4_hba.rq_ecount); 5827 if (!qdesc) { 5828 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5829 "0506 Failed allocate receive HRQ\n"); 5830 goto out_free_fcp_wq; 5831 } 5832 phba->sli4_hba.hdr_rq = qdesc; 5833 5834 /* Create Receive Queue for data */ 5835 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5836 phba->sli4_hba.rq_ecount); 5837 if (!qdesc) { 5838 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5839 "0507 Failed allocate receive DRQ\n"); 5840 goto out_free_hdr_rq; 5841 } 5842 phba->sli4_hba.dat_rq = qdesc; 5843 5844 return 0; 5845 5846 out_free_hdr_rq: 5847 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5848 phba->sli4_hba.hdr_rq = NULL; 5849 out_free_fcp_wq: 5850 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 5851 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 5852 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 5853 } 5854 kfree(phba->sli4_hba.fcp_wq); 5855 out_free_els_wq: 5856 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5857 phba->sli4_hba.els_wq = NULL; 5858 out_free_mbx_wq: 5859 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5860 phba->sli4_hba.mbx_wq = NULL; 5861 out_free_fcp_cq: 5862 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 5863 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 5864 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 5865 } 5866 kfree(phba->sli4_hba.fcp_cq); 5867 out_free_els_cq: 5868 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5869 phba->sli4_hba.els_cq = NULL; 5870 out_free_mbx_cq: 5871 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5872 phba->sli4_hba.mbx_cq = NULL; 5873 out_free_fp_eq: 5874 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 5875 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 5876 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 5877 } 5878 kfree(phba->sli4_hba.fp_eq); 5879 out_free_sp_eq: 5880 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5881 phba->sli4_hba.sp_eq = NULL; 5882 out_error: 5883 return -ENOMEM; 5884 } 5885 5886 /** 5887 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 5888 * @phba: pointer to lpfc hba data structure. 5889 * 5890 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 5891 * operation. 5892 * 5893 * Return codes 5894 * 0 - successful 5895 * ENOMEM - No availble memory 5896 * EIO - The mailbox failed to complete successfully. 5897 **/ 5898 static void 5899 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 5900 { 5901 int fcp_qidx; 5902 5903 /* Release mailbox command work queue */ 5904 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5905 phba->sli4_hba.mbx_wq = NULL; 5906 5907 /* Release ELS work queue */ 5908 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5909 phba->sli4_hba.els_wq = NULL; 5910 5911 /* Release FCP work queue */ 5912 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5913 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 5914 kfree(phba->sli4_hba.fcp_wq); 5915 phba->sli4_hba.fcp_wq = NULL; 5916 5917 /* Release unsolicited receive queue */ 5918 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5919 phba->sli4_hba.hdr_rq = NULL; 5920 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 5921 phba->sli4_hba.dat_rq = NULL; 5922 5923 /* Release ELS complete queue */ 5924 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5925 phba->sli4_hba.els_cq = NULL; 5926 5927 /* Release mailbox command complete queue */ 5928 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5929 phba->sli4_hba.mbx_cq = NULL; 5930 5931 /* Release FCP response complete queue */ 5932 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5933 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 5934 kfree(phba->sli4_hba.fcp_cq); 5935 phba->sli4_hba.fcp_cq = NULL; 5936 5937 /* Release fast-path event queue */ 5938 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5939 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 5940 kfree(phba->sli4_hba.fp_eq); 5941 phba->sli4_hba.fp_eq = NULL; 5942 5943 /* Release slow-path event queue */ 5944 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5945 phba->sli4_hba.sp_eq = NULL; 5946 5947 return; 5948 } 5949 5950 /** 5951 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 5952 * @phba: pointer to lpfc hba data structure. 5953 * 5954 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 5955 * operation. 5956 * 5957 * Return codes 5958 * 0 - successful 5959 * ENOMEM - No availble memory 5960 * EIO - The mailbox failed to complete successfully. 5961 **/ 5962 int 5963 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 5964 { 5965 int rc = -ENOMEM; 5966 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5967 int fcp_cq_index = 0; 5968 5969 /* 5970 * Set up Event Queues (EQs) 5971 */ 5972 5973 /* Set up slow-path event queue */ 5974 if (!phba->sli4_hba.sp_eq) { 5975 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5976 "0520 Slow-path EQ not allocated\n"); 5977 goto out_error; 5978 } 5979 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 5980 LPFC_SP_DEF_IMAX); 5981 if (rc) { 5982 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5983 "0521 Failed setup of slow-path EQ: " 5984 "rc = 0x%x\n", rc); 5985 goto out_error; 5986 } 5987 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5988 "2583 Slow-path EQ setup: queue-id=%d\n", 5989 phba->sli4_hba.sp_eq->queue_id); 5990 5991 /* Set up fast-path event queue */ 5992 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5993 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 5994 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5995 "0522 Fast-path EQ (%d) not " 5996 "allocated\n", fcp_eqidx); 5997 goto out_destroy_fp_eq; 5998 } 5999 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 6000 phba->cfg_fcp_imax); 6001 if (rc) { 6002 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6003 "0523 Failed setup of fast-path EQ " 6004 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 6005 goto out_destroy_fp_eq; 6006 } 6007 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6008 "2584 Fast-path EQ setup: " 6009 "queue[%d]-id=%d\n", fcp_eqidx, 6010 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 6011 } 6012 6013 /* 6014 * Set up Complete Queues (CQs) 6015 */ 6016 6017 /* Set up slow-path MBOX Complete Queue as the first CQ */ 6018 if (!phba->sli4_hba.mbx_cq) { 6019 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6020 "0528 Mailbox CQ not allocated\n"); 6021 goto out_destroy_fp_eq; 6022 } 6023 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 6024 LPFC_MCQ, LPFC_MBOX); 6025 if (rc) { 6026 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6027 "0529 Failed setup of slow-path mailbox CQ: " 6028 "rc = 0x%x\n", rc); 6029 goto out_destroy_fp_eq; 6030 } 6031 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6032 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 6033 phba->sli4_hba.mbx_cq->queue_id, 6034 phba->sli4_hba.sp_eq->queue_id); 6035 6036 /* Set up slow-path ELS Complete Queue */ 6037 if (!phba->sli4_hba.els_cq) { 6038 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6039 "0530 ELS CQ not allocated\n"); 6040 goto out_destroy_mbx_cq; 6041 } 6042 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 6043 LPFC_WCQ, LPFC_ELS); 6044 if (rc) { 6045 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6046 "0531 Failed setup of slow-path ELS CQ: " 6047 "rc = 0x%x\n", rc); 6048 goto out_destroy_mbx_cq; 6049 } 6050 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6051 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 6052 phba->sli4_hba.els_cq->queue_id, 6053 phba->sli4_hba.sp_eq->queue_id); 6054 6055 /* Set up fast-path FCP Response Complete Queue */ 6056 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 6057 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 6058 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6059 "0526 Fast-path FCP CQ (%d) not " 6060 "allocated\n", fcp_cqidx); 6061 goto out_destroy_fcp_cq; 6062 } 6063 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 6064 phba->sli4_hba.fp_eq[fcp_cqidx], 6065 LPFC_WCQ, LPFC_FCP); 6066 if (rc) { 6067 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6068 "0527 Failed setup of fast-path FCP " 6069 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 6070 goto out_destroy_fcp_cq; 6071 } 6072 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6073 "2588 FCP CQ setup: cq[%d]-id=%d, " 6074 "parent eq[%d]-id=%d\n", 6075 fcp_cqidx, 6076 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 6077 fcp_cqidx, 6078 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id); 6079 } 6080 6081 /* 6082 * Set up all the Work Queues (WQs) 6083 */ 6084 6085 /* Set up Mailbox Command Queue */ 6086 if (!phba->sli4_hba.mbx_wq) { 6087 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6088 "0538 Slow-path MQ not allocated\n"); 6089 goto out_destroy_fcp_cq; 6090 } 6091 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 6092 phba->sli4_hba.mbx_cq, LPFC_MBOX); 6093 if (rc) { 6094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6095 "0539 Failed setup of slow-path MQ: " 6096 "rc = 0x%x\n", rc); 6097 goto out_destroy_fcp_cq; 6098 } 6099 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6100 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 6101 phba->sli4_hba.mbx_wq->queue_id, 6102 phba->sli4_hba.mbx_cq->queue_id); 6103 6104 /* Set up slow-path ELS Work Queue */ 6105 if (!phba->sli4_hba.els_wq) { 6106 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6107 "0536 Slow-path ELS WQ not allocated\n"); 6108 goto out_destroy_mbx_wq; 6109 } 6110 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 6111 phba->sli4_hba.els_cq, LPFC_ELS); 6112 if (rc) { 6113 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6114 "0537 Failed setup of slow-path ELS WQ: " 6115 "rc = 0x%x\n", rc); 6116 goto out_destroy_mbx_wq; 6117 } 6118 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6119 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 6120 phba->sli4_hba.els_wq->queue_id, 6121 phba->sli4_hba.els_cq->queue_id); 6122 6123 /* Set up fast-path FCP Work Queue */ 6124 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6125 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 6126 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6127 "0534 Fast-path FCP WQ (%d) not " 6128 "allocated\n", fcp_wqidx); 6129 goto out_destroy_fcp_wq; 6130 } 6131 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 6132 phba->sli4_hba.fcp_cq[fcp_cq_index], 6133 LPFC_FCP); 6134 if (rc) { 6135 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6136 "0535 Failed setup of fast-path FCP " 6137 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 6138 goto out_destroy_fcp_wq; 6139 } 6140 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6141 "2591 FCP WQ setup: wq[%d]-id=%d, " 6142 "parent cq[%d]-id=%d\n", 6143 fcp_wqidx, 6144 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 6145 fcp_cq_index, 6146 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 6147 /* Round robin FCP Work Queue's Completion Queue assignment */ 6148 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count); 6149 } 6150 6151 /* 6152 * Create Receive Queue (RQ) 6153 */ 6154 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 6155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6156 "0540 Receive Queue not allocated\n"); 6157 goto out_destroy_fcp_wq; 6158 } 6159 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 6160 phba->sli4_hba.els_cq, LPFC_USOL); 6161 if (rc) { 6162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6163 "0541 Failed setup of Receive Queue: " 6164 "rc = 0x%x\n", rc); 6165 goto out_destroy_fcp_wq; 6166 } 6167 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6168 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 6169 "parent cq-id=%d\n", 6170 phba->sli4_hba.hdr_rq->queue_id, 6171 phba->sli4_hba.dat_rq->queue_id, 6172 phba->sli4_hba.els_cq->queue_id); 6173 return 0; 6174 6175 out_destroy_fcp_wq: 6176 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 6177 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 6178 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6179 out_destroy_mbx_wq: 6180 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6181 out_destroy_fcp_cq: 6182 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 6183 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 6184 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6185 out_destroy_mbx_cq: 6186 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6187 out_destroy_fp_eq: 6188 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 6189 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 6190 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6191 out_error: 6192 return rc; 6193 } 6194 6195 /** 6196 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 6197 * @phba: pointer to lpfc hba data structure. 6198 * 6199 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 6200 * operation. 6201 * 6202 * Return codes 6203 * 0 - successful 6204 * ENOMEM - No availble memory 6205 * EIO - The mailbox failed to complete successfully. 6206 **/ 6207 void 6208 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 6209 { 6210 int fcp_qidx; 6211 6212 /* Unset mailbox command work queue */ 6213 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6214 /* Unset ELS work queue */ 6215 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6216 /* Unset unsolicited receive queue */ 6217 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 6218 /* Unset FCP work queue */ 6219 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6220 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 6221 /* Unset mailbox command complete queue */ 6222 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6223 /* Unset ELS complete queue */ 6224 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6225 /* Unset FCP response complete queue */ 6226 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6227 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 6228 /* Unset fast-path event queue */ 6229 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6230 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 6231 /* Unset slow-path event queue */ 6232 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6233 } 6234 6235 /** 6236 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 6237 * @phba: pointer to lpfc hba data structure. 6238 * 6239 * This routine is invoked to allocate and set up a pool of completion queue 6240 * events. The body of the completion queue event is a completion queue entry 6241 * CQE. For now, this pool is used for the interrupt service routine to queue 6242 * the following HBA completion queue events for the worker thread to process: 6243 * - Mailbox asynchronous events 6244 * - Receive queue completion unsolicited events 6245 * Later, this can be used for all the slow-path events. 6246 * 6247 * Return codes 6248 * 0 - successful 6249 * -ENOMEM - No availble memory 6250 **/ 6251 static int 6252 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 6253 { 6254 struct lpfc_cq_event *cq_event; 6255 int i; 6256 6257 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 6258 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 6259 if (!cq_event) 6260 goto out_pool_create_fail; 6261 list_add_tail(&cq_event->list, 6262 &phba->sli4_hba.sp_cqe_event_pool); 6263 } 6264 return 0; 6265 6266 out_pool_create_fail: 6267 lpfc_sli4_cq_event_pool_destroy(phba); 6268 return -ENOMEM; 6269 } 6270 6271 /** 6272 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 6273 * @phba: pointer to lpfc hba data structure. 6274 * 6275 * This routine is invoked to free the pool of completion queue events at 6276 * driver unload time. Note that, it is the responsibility of the driver 6277 * cleanup routine to free all the outstanding completion-queue events 6278 * allocated from this pool back into the pool before invoking this routine 6279 * to destroy the pool. 6280 **/ 6281 static void 6282 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 6283 { 6284 struct lpfc_cq_event *cq_event, *next_cq_event; 6285 6286 list_for_each_entry_safe(cq_event, next_cq_event, 6287 &phba->sli4_hba.sp_cqe_event_pool, list) { 6288 list_del(&cq_event->list); 6289 kfree(cq_event); 6290 } 6291 } 6292 6293 /** 6294 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6295 * @phba: pointer to lpfc hba data structure. 6296 * 6297 * This routine is the lock free version of the API invoked to allocate a 6298 * completion-queue event from the free pool. 6299 * 6300 * Return: Pointer to the newly allocated completion-queue event if successful 6301 * NULL otherwise. 6302 **/ 6303 struct lpfc_cq_event * 6304 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6305 { 6306 struct lpfc_cq_event *cq_event = NULL; 6307 6308 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 6309 struct lpfc_cq_event, list); 6310 return cq_event; 6311 } 6312 6313 /** 6314 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6315 * @phba: pointer to lpfc hba data structure. 6316 * 6317 * This routine is the lock version of the API invoked to allocate a 6318 * completion-queue event from the free pool. 6319 * 6320 * Return: Pointer to the newly allocated completion-queue event if successful 6321 * NULL otherwise. 6322 **/ 6323 struct lpfc_cq_event * 6324 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6325 { 6326 struct lpfc_cq_event *cq_event; 6327 unsigned long iflags; 6328 6329 spin_lock_irqsave(&phba->hbalock, iflags); 6330 cq_event = __lpfc_sli4_cq_event_alloc(phba); 6331 spin_unlock_irqrestore(&phba->hbalock, iflags); 6332 return cq_event; 6333 } 6334 6335 /** 6336 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6337 * @phba: pointer to lpfc hba data structure. 6338 * @cq_event: pointer to the completion queue event to be freed. 6339 * 6340 * This routine is the lock free version of the API invoked to release a 6341 * completion-queue event back into the free pool. 6342 **/ 6343 void 6344 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6345 struct lpfc_cq_event *cq_event) 6346 { 6347 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 6348 } 6349 6350 /** 6351 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6352 * @phba: pointer to lpfc hba data structure. 6353 * @cq_event: pointer to the completion queue event to be freed. 6354 * 6355 * This routine is the lock version of the API invoked to release a 6356 * completion-queue event back into the free pool. 6357 **/ 6358 void 6359 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6360 struct lpfc_cq_event *cq_event) 6361 { 6362 unsigned long iflags; 6363 spin_lock_irqsave(&phba->hbalock, iflags); 6364 __lpfc_sli4_cq_event_release(phba, cq_event); 6365 spin_unlock_irqrestore(&phba->hbalock, iflags); 6366 } 6367 6368 /** 6369 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 6370 * @phba: pointer to lpfc hba data structure. 6371 * 6372 * This routine is to free all the pending completion-queue events to the 6373 * back into the free pool for device reset. 6374 **/ 6375 static void 6376 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 6377 { 6378 LIST_HEAD(cqelist); 6379 struct lpfc_cq_event *cqe; 6380 unsigned long iflags; 6381 6382 /* Retrieve all the pending WCQEs from pending WCQE lists */ 6383 spin_lock_irqsave(&phba->hbalock, iflags); 6384 /* Pending FCP XRI abort events */ 6385 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 6386 &cqelist); 6387 /* Pending ELS XRI abort events */ 6388 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 6389 &cqelist); 6390 /* Pending asynnc events */ 6391 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 6392 &cqelist); 6393 spin_unlock_irqrestore(&phba->hbalock, iflags); 6394 6395 while (!list_empty(&cqelist)) { 6396 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 6397 lpfc_sli4_cq_event_release(phba, cqe); 6398 } 6399 } 6400 6401 /** 6402 * lpfc_pci_function_reset - Reset pci function. 6403 * @phba: pointer to lpfc hba data structure. 6404 * 6405 * This routine is invoked to request a PCI function reset. It will destroys 6406 * all resources assigned to the PCI function which originates this request. 6407 * 6408 * Return codes 6409 * 0 - successful 6410 * ENOMEM - No availble memory 6411 * EIO - The mailbox failed to complete successfully. 6412 **/ 6413 int 6414 lpfc_pci_function_reset(struct lpfc_hba *phba) 6415 { 6416 LPFC_MBOXQ_t *mboxq; 6417 uint32_t rc = 0; 6418 uint32_t shdr_status, shdr_add_status; 6419 union lpfc_sli4_cfg_shdr *shdr; 6420 6421 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6422 if (!mboxq) { 6423 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6424 "0494 Unable to allocate memory for issuing " 6425 "SLI_FUNCTION_RESET mailbox command\n"); 6426 return -ENOMEM; 6427 } 6428 6429 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */ 6430 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6431 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 6432 LPFC_SLI4_MBX_EMBED); 6433 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6434 shdr = (union lpfc_sli4_cfg_shdr *) 6435 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6436 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6437 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6438 if (rc != MBX_TIMEOUT) 6439 mempool_free(mboxq, phba->mbox_mem_pool); 6440 if (shdr_status || shdr_add_status || rc) { 6441 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6442 "0495 SLI_FUNCTION_RESET mailbox failed with " 6443 "status x%x add_status x%x, mbx status x%x\n", 6444 shdr_status, shdr_add_status, rc); 6445 rc = -ENXIO; 6446 } 6447 return rc; 6448 } 6449 6450 /** 6451 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 6452 * @phba: pointer to lpfc hba data structure. 6453 * @cnt: number of nop mailbox commands to send. 6454 * 6455 * This routine is invoked to send a number @cnt of NOP mailbox command and 6456 * wait for each command to complete. 6457 * 6458 * Return: the number of NOP mailbox command completed. 6459 **/ 6460 static int 6461 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 6462 { 6463 LPFC_MBOXQ_t *mboxq; 6464 int length, cmdsent; 6465 uint32_t mbox_tmo; 6466 uint32_t rc = 0; 6467 uint32_t shdr_status, shdr_add_status; 6468 union lpfc_sli4_cfg_shdr *shdr; 6469 6470 if (cnt == 0) { 6471 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6472 "2518 Requested to send 0 NOP mailbox cmd\n"); 6473 return cnt; 6474 } 6475 6476 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6477 if (!mboxq) { 6478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6479 "2519 Unable to allocate memory for issuing " 6480 "NOP mailbox command\n"); 6481 return 0; 6482 } 6483 6484 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 6485 length = (sizeof(struct lpfc_mbx_nop) - 6486 sizeof(struct lpfc_sli4_cfg_mhdr)); 6487 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6488 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 6489 6490 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 6491 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 6492 if (!phba->sli4_hba.intr_enable) 6493 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6494 else 6495 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 6496 if (rc == MBX_TIMEOUT) 6497 break; 6498 /* Check return status */ 6499 shdr = (union lpfc_sli4_cfg_shdr *) 6500 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6501 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6502 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 6503 &shdr->response); 6504 if (shdr_status || shdr_add_status || rc) { 6505 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6506 "2520 NOP mailbox command failed " 6507 "status x%x add_status x%x mbx " 6508 "status x%x\n", shdr_status, 6509 shdr_add_status, rc); 6510 break; 6511 } 6512 } 6513 6514 if (rc != MBX_TIMEOUT) 6515 mempool_free(mboxq, phba->mbox_mem_pool); 6516 6517 return cmdsent; 6518 } 6519 6520 /** 6521 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device 6522 * @phba: pointer to lpfc hba data structure. 6523 * @fcfi: fcf index. 6524 * 6525 * This routine is invoked to unregister a FCFI from device. 6526 **/ 6527 void 6528 lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi) 6529 { 6530 LPFC_MBOXQ_t *mbox; 6531 uint32_t mbox_tmo; 6532 int rc; 6533 unsigned long flags; 6534 6535 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6536 6537 if (!mbox) 6538 return; 6539 6540 lpfc_unreg_fcfi(mbox, fcfi); 6541 6542 if (!phba->sli4_hba.intr_enable) 6543 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 6544 else { 6545 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 6546 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); 6547 } 6548 if (rc != MBX_TIMEOUT) 6549 mempool_free(mbox, phba->mbox_mem_pool); 6550 if (rc != MBX_SUCCESS) 6551 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6552 "2517 Unregister FCFI command failed " 6553 "status %d, mbxStatus x%x\n", rc, 6554 bf_get(lpfc_mqe_status, &mbox->u.mqe)); 6555 else { 6556 spin_lock_irqsave(&phba->hbalock, flags); 6557 /* Mark the FCFI is no longer registered */ 6558 phba->fcf.fcf_flag &= 6559 ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_SCAN_DONE); 6560 spin_unlock_irqrestore(&phba->hbalock, flags); 6561 } 6562 } 6563 6564 /** 6565 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 6566 * @phba: pointer to lpfc hba data structure. 6567 * 6568 * This routine is invoked to set up the PCI device memory space for device 6569 * with SLI-4 interface spec. 6570 * 6571 * Return codes 6572 * 0 - successful 6573 * other values - error 6574 **/ 6575 static int 6576 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 6577 { 6578 struct pci_dev *pdev; 6579 unsigned long bar0map_len, bar1map_len, bar2map_len; 6580 int error = -ENODEV; 6581 6582 /* Obtain PCI device reference */ 6583 if (!phba->pcidev) 6584 return error; 6585 else 6586 pdev = phba->pcidev; 6587 6588 /* Set the device DMA mask size */ 6589 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6590 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6591 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6592 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6593 return error; 6594 } 6595 } 6596 6597 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the 6598 * number of bytes required by each mapping. They are actually 6599 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device. 6600 */ 6601 if (pci_resource_start(pdev, 0)) { 6602 phba->pci_bar0_map = pci_resource_start(pdev, 0); 6603 bar0map_len = pci_resource_len(pdev, 0); 6604 } else { 6605 phba->pci_bar0_map = pci_resource_start(pdev, 1); 6606 bar0map_len = pci_resource_len(pdev, 1); 6607 } 6608 phba->pci_bar1_map = pci_resource_start(pdev, 2); 6609 bar1map_len = pci_resource_len(pdev, 2); 6610 6611 phba->pci_bar2_map = pci_resource_start(pdev, 4); 6612 bar2map_len = pci_resource_len(pdev, 4); 6613 6614 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */ 6615 phba->sli4_hba.conf_regs_memmap_p = 6616 ioremap(phba->pci_bar0_map, bar0map_len); 6617 if (!phba->sli4_hba.conf_regs_memmap_p) { 6618 dev_printk(KERN_ERR, &pdev->dev, 6619 "ioremap failed for SLI4 PCI config registers.\n"); 6620 goto out; 6621 } 6622 6623 /* Map SLI4 HBA Control Register base to a kernel virtual address. */ 6624 phba->sli4_hba.ctrl_regs_memmap_p = 6625 ioremap(phba->pci_bar1_map, bar1map_len); 6626 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 6627 dev_printk(KERN_ERR, &pdev->dev, 6628 "ioremap failed for SLI4 HBA control registers.\n"); 6629 goto out_iounmap_conf; 6630 } 6631 6632 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */ 6633 phba->sli4_hba.drbl_regs_memmap_p = 6634 ioremap(phba->pci_bar2_map, bar2map_len); 6635 if (!phba->sli4_hba.drbl_regs_memmap_p) { 6636 dev_printk(KERN_ERR, &pdev->dev, 6637 "ioremap failed for SLI4 HBA doorbell registers.\n"); 6638 goto out_iounmap_ctrl; 6639 } 6640 6641 /* Set up BAR0 PCI config space register memory map */ 6642 lpfc_sli4_bar0_register_memmap(phba); 6643 6644 /* Set up BAR1 register memory map */ 6645 lpfc_sli4_bar1_register_memmap(phba); 6646 6647 /* Set up BAR2 register memory map */ 6648 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 6649 if (error) 6650 goto out_iounmap_all; 6651 6652 return 0; 6653 6654 out_iounmap_all: 6655 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6656 out_iounmap_ctrl: 6657 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6658 out_iounmap_conf: 6659 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6660 out: 6661 return error; 6662 } 6663 6664 /** 6665 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 6666 * @phba: pointer to lpfc hba data structure. 6667 * 6668 * This routine is invoked to unset the PCI device memory space for device 6669 * with SLI-4 interface spec. 6670 **/ 6671 static void 6672 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 6673 { 6674 struct pci_dev *pdev; 6675 6676 /* Obtain PCI device reference */ 6677 if (!phba->pcidev) 6678 return; 6679 else 6680 pdev = phba->pcidev; 6681 6682 /* Free coherent DMA memory allocated */ 6683 6684 /* Unmap I/O memory space */ 6685 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6686 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6687 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6688 6689 return; 6690 } 6691 6692 /** 6693 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 6694 * @phba: pointer to lpfc hba data structure. 6695 * 6696 * This routine is invoked to enable the MSI-X interrupt vectors to device 6697 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 6698 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 6699 * invoked, enables either all or nothing, depending on the current 6700 * availability of PCI vector resources. The device driver is responsible 6701 * for calling the individual request_irq() to register each MSI-X vector 6702 * with a interrupt handler, which is done in this function. Note that 6703 * later when device is unloading, the driver should always call free_irq() 6704 * on all MSI-X vectors it has done request_irq() on before calling 6705 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 6706 * will be left with MSI-X enabled and leaks its vectors. 6707 * 6708 * Return codes 6709 * 0 - successful 6710 * other values - error 6711 **/ 6712 static int 6713 lpfc_sli_enable_msix(struct lpfc_hba *phba) 6714 { 6715 int rc, i; 6716 LPFC_MBOXQ_t *pmb; 6717 6718 /* Set up MSI-X multi-message vectors */ 6719 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6720 phba->msix_entries[i].entry = i; 6721 6722 /* Configure MSI-X capability structure */ 6723 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 6724 ARRAY_SIZE(phba->msix_entries)); 6725 if (rc) { 6726 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6727 "0420 PCI enable MSI-X failed (%d)\n", rc); 6728 goto msi_fail_out; 6729 } 6730 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6731 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6732 "0477 MSI-X entry[%d]: vector=x%x " 6733 "message=%d\n", i, 6734 phba->msix_entries[i].vector, 6735 phba->msix_entries[i].entry); 6736 /* 6737 * Assign MSI-X vectors to interrupt handlers 6738 */ 6739 6740 /* vector-0 is associated to slow-path handler */ 6741 rc = request_irq(phba->msix_entries[0].vector, 6742 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 6743 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6744 if (rc) { 6745 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6746 "0421 MSI-X slow-path request_irq failed " 6747 "(%d)\n", rc); 6748 goto msi_fail_out; 6749 } 6750 6751 /* vector-1 is associated to fast-path handler */ 6752 rc = request_irq(phba->msix_entries[1].vector, 6753 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 6754 LPFC_FP_DRIVER_HANDLER_NAME, phba); 6755 6756 if (rc) { 6757 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6758 "0429 MSI-X fast-path request_irq failed " 6759 "(%d)\n", rc); 6760 goto irq_fail_out; 6761 } 6762 6763 /* 6764 * Configure HBA MSI-X attention conditions to messages 6765 */ 6766 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6767 6768 if (!pmb) { 6769 rc = -ENOMEM; 6770 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6771 "0474 Unable to allocate memory for issuing " 6772 "MBOX_CONFIG_MSI command\n"); 6773 goto mem_fail_out; 6774 } 6775 rc = lpfc_config_msi(phba, pmb); 6776 if (rc) 6777 goto mbx_fail_out; 6778 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6779 if (rc != MBX_SUCCESS) { 6780 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 6781 "0351 Config MSI mailbox command failed, " 6782 "mbxCmd x%x, mbxStatus x%x\n", 6783 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 6784 goto mbx_fail_out; 6785 } 6786 6787 /* Free memory allocated for mailbox command */ 6788 mempool_free(pmb, phba->mbox_mem_pool); 6789 return rc; 6790 6791 mbx_fail_out: 6792 /* Free memory allocated for mailbox command */ 6793 mempool_free(pmb, phba->mbox_mem_pool); 6794 6795 mem_fail_out: 6796 /* free the irq already requested */ 6797 free_irq(phba->msix_entries[1].vector, phba); 6798 6799 irq_fail_out: 6800 /* free the irq already requested */ 6801 free_irq(phba->msix_entries[0].vector, phba); 6802 6803 msi_fail_out: 6804 /* Unconfigure MSI-X capability structure */ 6805 pci_disable_msix(phba->pcidev); 6806 return rc; 6807 } 6808 6809 /** 6810 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 6811 * @phba: pointer to lpfc hba data structure. 6812 * 6813 * This routine is invoked to release the MSI-X vectors and then disable the 6814 * MSI-X interrupt mode to device with SLI-3 interface spec. 6815 **/ 6816 static void 6817 lpfc_sli_disable_msix(struct lpfc_hba *phba) 6818 { 6819 int i; 6820 6821 /* Free up MSI-X multi-message vectors */ 6822 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6823 free_irq(phba->msix_entries[i].vector, phba); 6824 /* Disable MSI-X */ 6825 pci_disable_msix(phba->pcidev); 6826 6827 return; 6828 } 6829 6830 /** 6831 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 6832 * @phba: pointer to lpfc hba data structure. 6833 * 6834 * This routine is invoked to enable the MSI interrupt mode to device with 6835 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 6836 * enable the MSI vector. The device driver is responsible for calling the 6837 * request_irq() to register MSI vector with a interrupt the handler, which 6838 * is done in this function. 6839 * 6840 * Return codes 6841 * 0 - successful 6842 * other values - error 6843 */ 6844 static int 6845 lpfc_sli_enable_msi(struct lpfc_hba *phba) 6846 { 6847 int rc; 6848 6849 rc = pci_enable_msi(phba->pcidev); 6850 if (!rc) 6851 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6852 "0462 PCI enable MSI mode success.\n"); 6853 else { 6854 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6855 "0471 PCI enable MSI mode failed (%d)\n", rc); 6856 return rc; 6857 } 6858 6859 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6860 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6861 if (rc) { 6862 pci_disable_msi(phba->pcidev); 6863 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6864 "0478 MSI request_irq failed (%d)\n", rc); 6865 } 6866 return rc; 6867 } 6868 6869 /** 6870 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 6871 * @phba: pointer to lpfc hba data structure. 6872 * 6873 * This routine is invoked to disable the MSI interrupt mode to device with 6874 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 6875 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6876 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6877 * its vector. 6878 */ 6879 static void 6880 lpfc_sli_disable_msi(struct lpfc_hba *phba) 6881 { 6882 free_irq(phba->pcidev->irq, phba); 6883 pci_disable_msi(phba->pcidev); 6884 return; 6885 } 6886 6887 /** 6888 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 6889 * @phba: pointer to lpfc hba data structure. 6890 * 6891 * This routine is invoked to enable device interrupt and associate driver's 6892 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 6893 * spec. Depends on the interrupt mode configured to the driver, the driver 6894 * will try to fallback from the configured interrupt mode to an interrupt 6895 * mode which is supported by the platform, kernel, and device in the order 6896 * of: 6897 * MSI-X -> MSI -> IRQ. 6898 * 6899 * Return codes 6900 * 0 - successful 6901 * other values - error 6902 **/ 6903 static uint32_t 6904 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6905 { 6906 uint32_t intr_mode = LPFC_INTR_ERROR; 6907 int retval; 6908 6909 if (cfg_mode == 2) { 6910 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 6911 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 6912 if (!retval) { 6913 /* Now, try to enable MSI-X interrupt mode */ 6914 retval = lpfc_sli_enable_msix(phba); 6915 if (!retval) { 6916 /* Indicate initialization to MSI-X mode */ 6917 phba->intr_type = MSIX; 6918 intr_mode = 2; 6919 } 6920 } 6921 } 6922 6923 /* Fallback to MSI if MSI-X initialization failed */ 6924 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6925 retval = lpfc_sli_enable_msi(phba); 6926 if (!retval) { 6927 /* Indicate initialization to MSI mode */ 6928 phba->intr_type = MSI; 6929 intr_mode = 1; 6930 } 6931 } 6932 6933 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6934 if (phba->intr_type == NONE) { 6935 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6936 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6937 if (!retval) { 6938 /* Indicate initialization to INTx mode */ 6939 phba->intr_type = INTx; 6940 intr_mode = 0; 6941 } 6942 } 6943 return intr_mode; 6944 } 6945 6946 /** 6947 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 6948 * @phba: pointer to lpfc hba data structure. 6949 * 6950 * This routine is invoked to disable device interrupt and disassociate the 6951 * driver's interrupt handler(s) from interrupt vector(s) to device with 6952 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 6953 * release the interrupt vector(s) for the message signaled interrupt. 6954 **/ 6955 static void 6956 lpfc_sli_disable_intr(struct lpfc_hba *phba) 6957 { 6958 /* Disable the currently initialized interrupt mode */ 6959 if (phba->intr_type == MSIX) 6960 lpfc_sli_disable_msix(phba); 6961 else if (phba->intr_type == MSI) 6962 lpfc_sli_disable_msi(phba); 6963 else if (phba->intr_type == INTx) 6964 free_irq(phba->pcidev->irq, phba); 6965 6966 /* Reset interrupt management states */ 6967 phba->intr_type = NONE; 6968 phba->sli.slistat.sli_intr = 0; 6969 6970 return; 6971 } 6972 6973 /** 6974 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 6975 * @phba: pointer to lpfc hba data structure. 6976 * 6977 * This routine is invoked to enable the MSI-X interrupt vectors to device 6978 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 6979 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 6980 * enables either all or nothing, depending on the current availability of 6981 * PCI vector resources. The device driver is responsible for calling the 6982 * individual request_irq() to register each MSI-X vector with a interrupt 6983 * handler, which is done in this function. Note that later when device is 6984 * unloading, the driver should always call free_irq() on all MSI-X vectors 6985 * it has done request_irq() on before calling pci_disable_msix(). Failure 6986 * to do so results in a BUG_ON() and a device will be left with MSI-X 6987 * enabled and leaks its vectors. 6988 * 6989 * Return codes 6990 * 0 - successful 6991 * other values - error 6992 **/ 6993 static int 6994 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 6995 { 6996 int rc, index; 6997 6998 /* Set up MSI-X multi-message vectors */ 6999 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 7000 phba->sli4_hba.msix_entries[index].entry = index; 7001 7002 /* Configure MSI-X capability structure */ 7003 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 7004 phba->sli4_hba.cfg_eqn); 7005 if (rc) { 7006 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7007 "0484 PCI enable MSI-X failed (%d)\n", rc); 7008 goto msi_fail_out; 7009 } 7010 /* Log MSI-X vector assignment */ 7011 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 7012 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7013 "0489 MSI-X entry[%d]: vector=x%x " 7014 "message=%d\n", index, 7015 phba->sli4_hba.msix_entries[index].vector, 7016 phba->sli4_hba.msix_entries[index].entry); 7017 /* 7018 * Assign MSI-X vectors to interrupt handlers 7019 */ 7020 7021 /* The first vector must associated to slow-path handler for MQ */ 7022 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7023 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 7024 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7025 if (rc) { 7026 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7027 "0485 MSI-X slow-path request_irq failed " 7028 "(%d)\n", rc); 7029 goto msi_fail_out; 7030 } 7031 7032 /* The rest of the vector(s) are associated to fast-path handler(s) */ 7033 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) { 7034 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 7035 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 7036 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 7037 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 7038 LPFC_FP_DRIVER_HANDLER_NAME, 7039 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7040 if (rc) { 7041 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7042 "0486 MSI-X fast-path (%d) " 7043 "request_irq failed (%d)\n", index, rc); 7044 goto cfg_fail_out; 7045 } 7046 } 7047 7048 return rc; 7049 7050 cfg_fail_out: 7051 /* free the irq already requested */ 7052 for (--index; index >= 1; index--) 7053 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 7054 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7055 7056 /* free the irq already requested */ 7057 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7058 7059 msi_fail_out: 7060 /* Unconfigure MSI-X capability structure */ 7061 pci_disable_msix(phba->pcidev); 7062 return rc; 7063 } 7064 7065 /** 7066 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 7067 * @phba: pointer to lpfc hba data structure. 7068 * 7069 * This routine is invoked to release the MSI-X vectors and then disable the 7070 * MSI-X interrupt mode to device with SLI-4 interface spec. 7071 **/ 7072 static void 7073 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 7074 { 7075 int index; 7076 7077 /* Free up MSI-X multi-message vectors */ 7078 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7079 7080 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) 7081 free_irq(phba->sli4_hba.msix_entries[index].vector, 7082 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7083 /* Disable MSI-X */ 7084 pci_disable_msix(phba->pcidev); 7085 7086 return; 7087 } 7088 7089 /** 7090 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 7091 * @phba: pointer to lpfc hba data structure. 7092 * 7093 * This routine is invoked to enable the MSI interrupt mode to device with 7094 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 7095 * to enable the MSI vector. The device driver is responsible for calling 7096 * the request_irq() to register MSI vector with a interrupt the handler, 7097 * which is done in this function. 7098 * 7099 * Return codes 7100 * 0 - successful 7101 * other values - error 7102 **/ 7103 static int 7104 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 7105 { 7106 int rc, index; 7107 7108 rc = pci_enable_msi(phba->pcidev); 7109 if (!rc) 7110 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7111 "0487 PCI enable MSI mode success.\n"); 7112 else { 7113 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7114 "0488 PCI enable MSI mode failed (%d)\n", rc); 7115 return rc; 7116 } 7117 7118 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7119 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7120 if (rc) { 7121 pci_disable_msi(phba->pcidev); 7122 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7123 "0490 MSI request_irq failed (%d)\n", rc); 7124 } 7125 7126 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 7127 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7128 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7129 } 7130 7131 return rc; 7132 } 7133 7134 /** 7135 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 7136 * @phba: pointer to lpfc hba data structure. 7137 * 7138 * This routine is invoked to disable the MSI interrupt mode to device with 7139 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 7140 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7141 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7142 * its vector. 7143 **/ 7144 static void 7145 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 7146 { 7147 free_irq(phba->pcidev->irq, phba); 7148 pci_disable_msi(phba->pcidev); 7149 return; 7150 } 7151 7152 /** 7153 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 7154 * @phba: pointer to lpfc hba data structure. 7155 * 7156 * This routine is invoked to enable device interrupt and associate driver's 7157 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 7158 * interface spec. Depends on the interrupt mode configured to the driver, 7159 * the driver will try to fallback from the configured interrupt mode to an 7160 * interrupt mode which is supported by the platform, kernel, and device in 7161 * the order of: 7162 * MSI-X -> MSI -> IRQ. 7163 * 7164 * Return codes 7165 * 0 - successful 7166 * other values - error 7167 **/ 7168 static uint32_t 7169 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7170 { 7171 uint32_t intr_mode = LPFC_INTR_ERROR; 7172 int retval, index; 7173 7174 if (cfg_mode == 2) { 7175 /* Preparation before conf_msi mbox cmd */ 7176 retval = 0; 7177 if (!retval) { 7178 /* Now, try to enable MSI-X interrupt mode */ 7179 retval = lpfc_sli4_enable_msix(phba); 7180 if (!retval) { 7181 /* Indicate initialization to MSI-X mode */ 7182 phba->intr_type = MSIX; 7183 intr_mode = 2; 7184 } 7185 } 7186 } 7187 7188 /* Fallback to MSI if MSI-X initialization failed */ 7189 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7190 retval = lpfc_sli4_enable_msi(phba); 7191 if (!retval) { 7192 /* Indicate initialization to MSI mode */ 7193 phba->intr_type = MSI; 7194 intr_mode = 1; 7195 } 7196 } 7197 7198 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7199 if (phba->intr_type == NONE) { 7200 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7201 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7202 if (!retval) { 7203 /* Indicate initialization to INTx mode */ 7204 phba->intr_type = INTx; 7205 intr_mode = 0; 7206 for (index = 0; index < phba->cfg_fcp_eq_count; 7207 index++) { 7208 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7209 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7210 } 7211 } 7212 } 7213 return intr_mode; 7214 } 7215 7216 /** 7217 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 7218 * @phba: pointer to lpfc hba data structure. 7219 * 7220 * This routine is invoked to disable device interrupt and disassociate 7221 * the driver's interrupt handler(s) from interrupt vector(s) to device 7222 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 7223 * will release the interrupt vector(s) for the message signaled interrupt. 7224 **/ 7225 static void 7226 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 7227 { 7228 /* Disable the currently initialized interrupt mode */ 7229 if (phba->intr_type == MSIX) 7230 lpfc_sli4_disable_msix(phba); 7231 else if (phba->intr_type == MSI) 7232 lpfc_sli4_disable_msi(phba); 7233 else if (phba->intr_type == INTx) 7234 free_irq(phba->pcidev->irq, phba); 7235 7236 /* Reset interrupt management states */ 7237 phba->intr_type = NONE; 7238 phba->sli.slistat.sli_intr = 0; 7239 7240 return; 7241 } 7242 7243 /** 7244 * lpfc_unset_hba - Unset SLI3 hba device initialization 7245 * @phba: pointer to lpfc hba data structure. 7246 * 7247 * This routine is invoked to unset the HBA device initialization steps to 7248 * a device with SLI-3 interface spec. 7249 **/ 7250 static void 7251 lpfc_unset_hba(struct lpfc_hba *phba) 7252 { 7253 struct lpfc_vport *vport = phba->pport; 7254 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7255 7256 spin_lock_irq(shost->host_lock); 7257 vport->load_flag |= FC_UNLOADING; 7258 spin_unlock_irq(shost->host_lock); 7259 7260 lpfc_stop_hba_timers(phba); 7261 7262 phba->pport->work_port_events = 0; 7263 7264 lpfc_sli_hba_down(phba); 7265 7266 lpfc_sli_brdrestart(phba); 7267 7268 lpfc_sli_disable_intr(phba); 7269 7270 return; 7271 } 7272 7273 /** 7274 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 7275 * @phba: pointer to lpfc hba data structure. 7276 * 7277 * This routine is invoked to unset the HBA device initialization steps to 7278 * a device with SLI-4 interface spec. 7279 **/ 7280 static void 7281 lpfc_sli4_unset_hba(struct lpfc_hba *phba) 7282 { 7283 struct lpfc_vport *vport = phba->pport; 7284 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7285 7286 spin_lock_irq(shost->host_lock); 7287 vport->load_flag |= FC_UNLOADING; 7288 spin_unlock_irq(shost->host_lock); 7289 7290 phba->pport->work_port_events = 0; 7291 7292 lpfc_sli4_hba_down(phba); 7293 7294 lpfc_sli4_disable_intr(phba); 7295 7296 return; 7297 } 7298 7299 /** 7300 * lpfc_sli4_hba_unset - Unset the fcoe hba 7301 * @phba: Pointer to HBA context object. 7302 * 7303 * This function is called in the SLI4 code path to reset the HBA's FCoE 7304 * function. The caller is not required to hold any lock. This routine 7305 * issues PCI function reset mailbox command to reset the FCoE function. 7306 * At the end of the function, it calls lpfc_hba_down_post function to 7307 * free any pending commands. 7308 **/ 7309 static void 7310 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 7311 { 7312 int wait_cnt = 0; 7313 LPFC_MBOXQ_t *mboxq; 7314 7315 lpfc_stop_hba_timers(phba); 7316 phba->sli4_hba.intr_enable = 0; 7317 7318 /* 7319 * Gracefully wait out the potential current outstanding asynchronous 7320 * mailbox command. 7321 */ 7322 7323 /* First, block any pending async mailbox command from posted */ 7324 spin_lock_irq(&phba->hbalock); 7325 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 7326 spin_unlock_irq(&phba->hbalock); 7327 /* Now, trying to wait it out if we can */ 7328 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7329 msleep(10); 7330 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 7331 break; 7332 } 7333 /* Forcefully release the outstanding mailbox command if timed out */ 7334 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7335 spin_lock_irq(&phba->hbalock); 7336 mboxq = phba->sli.mbox_active; 7337 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 7338 __lpfc_mbox_cmpl_put(phba, mboxq); 7339 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 7340 phba->sli.mbox_active = NULL; 7341 spin_unlock_irq(&phba->hbalock); 7342 } 7343 7344 /* Tear down the queues in the HBA */ 7345 lpfc_sli4_queue_unset(phba); 7346 7347 /* Disable PCI subsystem interrupt */ 7348 lpfc_sli4_disable_intr(phba); 7349 7350 /* Stop kthread signal shall trigger work_done one more time */ 7351 kthread_stop(phba->worker_thread); 7352 7353 /* Stop the SLI4 device port */ 7354 phba->pport->work_port_events = 0; 7355 } 7356 7357 /** 7358 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 7359 * @phba: Pointer to HBA context object. 7360 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 7361 * 7362 * This function is called in the SLI4 code path to read the port's 7363 * sli4 capabilities. 7364 * 7365 * This function may be be called from any context that can block-wait 7366 * for the completion. The expectation is that this routine is called 7367 * typically from probe_one or from the online routine. 7368 **/ 7369 int 7370 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 7371 { 7372 int rc; 7373 struct lpfc_mqe *mqe; 7374 struct lpfc_pc_sli4_params *sli4_params; 7375 uint32_t mbox_tmo; 7376 7377 rc = 0; 7378 mqe = &mboxq->u.mqe; 7379 7380 /* Read the port's SLI4 Parameters port capabilities */ 7381 lpfc_sli4_params(mboxq); 7382 if (!phba->sli4_hba.intr_enable) 7383 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7384 else { 7385 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES); 7386 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7387 } 7388 7389 if (unlikely(rc)) 7390 return 1; 7391 7392 sli4_params = &phba->sli4_hba.pc_sli4_params; 7393 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 7394 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 7395 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 7396 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 7397 &mqe->un.sli4_params); 7398 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 7399 &mqe->un.sli4_params); 7400 sli4_params->proto_types = mqe->un.sli4_params.word3; 7401 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 7402 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 7403 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 7404 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 7405 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 7406 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 7407 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 7408 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 7409 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 7410 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 7411 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 7412 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 7413 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 7414 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 7415 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 7416 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 7417 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 7418 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 7419 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 7420 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 7421 return rc; 7422 } 7423 7424 /** 7425 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 7426 * @pdev: pointer to PCI device 7427 * @pid: pointer to PCI device identifier 7428 * 7429 * This routine is to be called to attach a device with SLI-3 interface spec 7430 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 7431 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 7432 * information of the device and driver to see if the driver state that it can 7433 * support this kind of device. If the match is successful, the driver core 7434 * invokes this routine. If this routine determines it can claim the HBA, it 7435 * does all the initialization that it needs to do to handle the HBA properly. 7436 * 7437 * Return code 7438 * 0 - driver can claim the device 7439 * negative value - driver can not claim the device 7440 **/ 7441 static int __devinit 7442 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 7443 { 7444 struct lpfc_hba *phba; 7445 struct lpfc_vport *vport = NULL; 7446 struct Scsi_Host *shost = NULL; 7447 int error; 7448 uint32_t cfg_mode, intr_mode; 7449 7450 /* Allocate memory for HBA structure */ 7451 phba = lpfc_hba_alloc(pdev); 7452 if (!phba) 7453 return -ENOMEM; 7454 7455 /* Perform generic PCI device enabling operation */ 7456 error = lpfc_enable_pci_dev(phba); 7457 if (error) { 7458 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7459 "1401 Failed to enable pci device.\n"); 7460 goto out_free_phba; 7461 } 7462 7463 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 7464 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 7465 if (error) 7466 goto out_disable_pci_dev; 7467 7468 /* Set up SLI-3 specific device PCI memory space */ 7469 error = lpfc_sli_pci_mem_setup(phba); 7470 if (error) { 7471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7472 "1402 Failed to set up pci memory space.\n"); 7473 goto out_disable_pci_dev; 7474 } 7475 7476 /* Set up phase-1 common device driver resources */ 7477 error = lpfc_setup_driver_resource_phase1(phba); 7478 if (error) { 7479 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7480 "1403 Failed to set up driver resource.\n"); 7481 goto out_unset_pci_mem_s3; 7482 } 7483 7484 /* Set up SLI-3 specific device driver resources */ 7485 error = lpfc_sli_driver_resource_setup(phba); 7486 if (error) { 7487 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7488 "1404 Failed to set up driver resource.\n"); 7489 goto out_unset_pci_mem_s3; 7490 } 7491 7492 /* Initialize and populate the iocb list per host */ 7493 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 7494 if (error) { 7495 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7496 "1405 Failed to initialize iocb list.\n"); 7497 goto out_unset_driver_resource_s3; 7498 } 7499 7500 /* Set up common device driver resources */ 7501 error = lpfc_setup_driver_resource_phase2(phba); 7502 if (error) { 7503 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7504 "1406 Failed to set up driver resource.\n"); 7505 goto out_free_iocb_list; 7506 } 7507 7508 /* Create SCSI host to the physical port */ 7509 error = lpfc_create_shost(phba); 7510 if (error) { 7511 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7512 "1407 Failed to create scsi host.\n"); 7513 goto out_unset_driver_resource; 7514 } 7515 7516 /* Configure sysfs attributes */ 7517 vport = phba->pport; 7518 error = lpfc_alloc_sysfs_attr(vport); 7519 if (error) { 7520 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7521 "1476 Failed to allocate sysfs attr\n"); 7522 goto out_destroy_shost; 7523 } 7524 7525 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 7526 /* Now, trying to enable interrupt and bring up the device */ 7527 cfg_mode = phba->cfg_use_msi; 7528 while (true) { 7529 /* Put device to a known state before enabling interrupt */ 7530 lpfc_stop_port(phba); 7531 /* Configure and enable interrupt */ 7532 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 7533 if (intr_mode == LPFC_INTR_ERROR) { 7534 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7535 "0431 Failed to enable interrupt.\n"); 7536 error = -ENODEV; 7537 goto out_free_sysfs_attr; 7538 } 7539 /* SLI-3 HBA setup */ 7540 if (lpfc_sli_hba_setup(phba)) { 7541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7542 "1477 Failed to set up hba\n"); 7543 error = -ENODEV; 7544 goto out_remove_device; 7545 } 7546 7547 /* Wait 50ms for the interrupts of previous mailbox commands */ 7548 msleep(50); 7549 /* Check active interrupts on message signaled interrupts */ 7550 if (intr_mode == 0 || 7551 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 7552 /* Log the current active interrupt mode */ 7553 phba->intr_mode = intr_mode; 7554 lpfc_log_intr_mode(phba, intr_mode); 7555 break; 7556 } else { 7557 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7558 "0447 Configure interrupt mode (%d) " 7559 "failed active interrupt test.\n", 7560 intr_mode); 7561 /* Disable the current interrupt mode */ 7562 lpfc_sli_disable_intr(phba); 7563 /* Try next level of interrupt mode */ 7564 cfg_mode = --intr_mode; 7565 } 7566 } 7567 7568 /* Perform post initialization setup */ 7569 lpfc_post_init_setup(phba); 7570 7571 /* Check if there are static vports to be created. */ 7572 lpfc_create_static_vport(phba); 7573 7574 return 0; 7575 7576 out_remove_device: 7577 lpfc_unset_hba(phba); 7578 out_free_sysfs_attr: 7579 lpfc_free_sysfs_attr(vport); 7580 out_destroy_shost: 7581 lpfc_destroy_shost(phba); 7582 out_unset_driver_resource: 7583 lpfc_unset_driver_resource_phase2(phba); 7584 out_free_iocb_list: 7585 lpfc_free_iocb_list(phba); 7586 out_unset_driver_resource_s3: 7587 lpfc_sli_driver_resource_unset(phba); 7588 out_unset_pci_mem_s3: 7589 lpfc_sli_pci_mem_unset(phba); 7590 out_disable_pci_dev: 7591 lpfc_disable_pci_dev(phba); 7592 if (shost) 7593 scsi_host_put(shost); 7594 out_free_phba: 7595 lpfc_hba_free(phba); 7596 return error; 7597 } 7598 7599 /** 7600 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 7601 * @pdev: pointer to PCI device 7602 * 7603 * This routine is to be called to disattach a device with SLI-3 interface 7604 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 7605 * removed from PCI bus, it performs all the necessary cleanup for the HBA 7606 * device to be removed from the PCI subsystem properly. 7607 **/ 7608 static void __devexit 7609 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 7610 { 7611 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7612 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7613 struct lpfc_vport **vports; 7614 struct lpfc_hba *phba = vport->phba; 7615 int i; 7616 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 7617 7618 spin_lock_irq(&phba->hbalock); 7619 vport->load_flag |= FC_UNLOADING; 7620 spin_unlock_irq(&phba->hbalock); 7621 7622 lpfc_free_sysfs_attr(vport); 7623 7624 /* Release all the vports against this physical port */ 7625 vports = lpfc_create_vport_work_array(phba); 7626 if (vports != NULL) 7627 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 7628 fc_vport_terminate(vports[i]->fc_vport); 7629 lpfc_destroy_vport_work_array(phba, vports); 7630 7631 /* Remove FC host and then SCSI host with the physical port */ 7632 fc_remove_host(shost); 7633 scsi_remove_host(shost); 7634 lpfc_cleanup(vport); 7635 7636 /* 7637 * Bring down the SLI Layer. This step disable all interrupts, 7638 * clears the rings, discards all mailbox commands, and resets 7639 * the HBA. 7640 */ 7641 7642 /* HBA interrupt will be diabled after this call */ 7643 lpfc_sli_hba_down(phba); 7644 /* Stop kthread signal shall trigger work_done one more time */ 7645 kthread_stop(phba->worker_thread); 7646 /* Final cleanup of txcmplq and reset the HBA */ 7647 lpfc_sli_brdrestart(phba); 7648 7649 lpfc_stop_hba_timers(phba); 7650 spin_lock_irq(&phba->hbalock); 7651 list_del_init(&vport->listentry); 7652 spin_unlock_irq(&phba->hbalock); 7653 7654 lpfc_debugfs_terminate(vport); 7655 7656 /* Disable interrupt */ 7657 lpfc_sli_disable_intr(phba); 7658 7659 pci_set_drvdata(pdev, NULL); 7660 scsi_host_put(shost); 7661 7662 /* 7663 * Call scsi_free before mem_free since scsi bufs are released to their 7664 * corresponding pools here. 7665 */ 7666 lpfc_scsi_free(phba); 7667 lpfc_mem_free_all(phba); 7668 7669 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7670 phba->hbqslimp.virt, phba->hbqslimp.phys); 7671 7672 /* Free resources associated with SLI2 interface */ 7673 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7674 phba->slim2p.virt, phba->slim2p.phys); 7675 7676 /* unmap adapter SLIM and Control Registers */ 7677 iounmap(phba->ctrl_regs_memmap_p); 7678 iounmap(phba->slim_memmap_p); 7679 7680 lpfc_hba_free(phba); 7681 7682 pci_release_selected_regions(pdev, bars); 7683 pci_disable_device(pdev); 7684 } 7685 7686 /** 7687 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 7688 * @pdev: pointer to PCI device 7689 * @msg: power management message 7690 * 7691 * This routine is to be called from the kernel's PCI subsystem to support 7692 * system Power Management (PM) to device with SLI-3 interface spec. When 7693 * PM invokes this method, it quiesces the device by stopping the driver's 7694 * worker thread for the device, turning off device's interrupt and DMA, 7695 * and bring the device offline. Note that as the driver implements the 7696 * minimum PM requirements to a power-aware driver's PM support for the 7697 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 7698 * to the suspend() method call will be treated as SUSPEND and the driver will 7699 * fully reinitialize its device during resume() method call, the driver will 7700 * set device to PCI_D3hot state in PCI config space instead of setting it 7701 * according to the @msg provided by the PM. 7702 * 7703 * Return code 7704 * 0 - driver suspended the device 7705 * Error otherwise 7706 **/ 7707 static int 7708 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 7709 { 7710 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7711 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7712 7713 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7714 "0473 PCI device Power Management suspend.\n"); 7715 7716 /* Bring down the device */ 7717 lpfc_offline_prep(phba); 7718 lpfc_offline(phba); 7719 kthread_stop(phba->worker_thread); 7720 7721 /* Disable interrupt from device */ 7722 lpfc_sli_disable_intr(phba); 7723 7724 /* Save device state to PCI config space */ 7725 pci_save_state(pdev); 7726 pci_set_power_state(pdev, PCI_D3hot); 7727 7728 return 0; 7729 } 7730 7731 /** 7732 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 7733 * @pdev: pointer to PCI device 7734 * 7735 * This routine is to be called from the kernel's PCI subsystem to support 7736 * system Power Management (PM) to device with SLI-3 interface spec. When PM 7737 * invokes this method, it restores the device's PCI config space state and 7738 * fully reinitializes the device and brings it online. Note that as the 7739 * driver implements the minimum PM requirements to a power-aware driver's 7740 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 7741 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 7742 * driver will fully reinitialize its device during resume() method call, 7743 * the device will be set to PCI_D0 directly in PCI config space before 7744 * restoring the state. 7745 * 7746 * Return code 7747 * 0 - driver suspended the device 7748 * Error otherwise 7749 **/ 7750 static int 7751 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 7752 { 7753 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7754 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7755 uint32_t intr_mode; 7756 int error; 7757 7758 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7759 "0452 PCI device Power Management resume.\n"); 7760 7761 /* Restore device state from PCI config space */ 7762 pci_set_power_state(pdev, PCI_D0); 7763 pci_restore_state(pdev); 7764 7765 /* 7766 * As the new kernel behavior of pci_restore_state() API call clears 7767 * device saved_state flag, need to save the restored state again. 7768 */ 7769 pci_save_state(pdev); 7770 7771 if (pdev->is_busmaster) 7772 pci_set_master(pdev); 7773 7774 /* Startup the kernel thread for this host adapter. */ 7775 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7776 "lpfc_worker_%d", phba->brd_no); 7777 if (IS_ERR(phba->worker_thread)) { 7778 error = PTR_ERR(phba->worker_thread); 7779 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7780 "0434 PM resume failed to start worker " 7781 "thread: error=x%x.\n", error); 7782 return error; 7783 } 7784 7785 /* Configure and enable interrupt */ 7786 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7787 if (intr_mode == LPFC_INTR_ERROR) { 7788 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7789 "0430 PM resume Failed to enable interrupt\n"); 7790 return -EIO; 7791 } else 7792 phba->intr_mode = intr_mode; 7793 7794 /* Restart HBA and bring it online */ 7795 lpfc_sli_brdrestart(phba); 7796 lpfc_online(phba); 7797 7798 /* Log the current active interrupt mode */ 7799 lpfc_log_intr_mode(phba, phba->intr_mode); 7800 7801 return 0; 7802 } 7803 7804 /** 7805 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 7806 * @phba: pointer to lpfc hba data structure. 7807 * 7808 * This routine is called to prepare the SLI3 device for PCI slot recover. It 7809 * aborts all the outstanding SCSI I/Os to the pci device. 7810 **/ 7811 static void 7812 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 7813 { 7814 struct lpfc_sli *psli = &phba->sli; 7815 struct lpfc_sli_ring *pring; 7816 7817 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7818 "2723 PCI channel I/O abort preparing for recovery\n"); 7819 7820 /* 7821 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 7822 * and let the SCSI mid-layer to retry them to recover. 7823 */ 7824 pring = &psli->ring[psli->fcp_ring]; 7825 lpfc_sli_abort_iocb_ring(phba, pring); 7826 } 7827 7828 /** 7829 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 7830 * @phba: pointer to lpfc hba data structure. 7831 * 7832 * This routine is called to prepare the SLI3 device for PCI slot reset. It 7833 * disables the device interrupt and pci device, and aborts the internal FCP 7834 * pending I/Os. 7835 **/ 7836 static void 7837 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 7838 { 7839 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7840 "2710 PCI channel disable preparing for reset\n"); 7841 7842 /* Block all SCSI devices' I/Os on the host */ 7843 lpfc_scsi_dev_block(phba); 7844 7845 /* stop all timers */ 7846 lpfc_stop_hba_timers(phba); 7847 7848 /* Disable interrupt and pci device */ 7849 lpfc_sli_disable_intr(phba); 7850 pci_disable_device(phba->pcidev); 7851 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 7852 lpfc_sli_flush_fcp_rings(phba); 7853 } 7854 7855 /** 7856 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 7857 * @phba: pointer to lpfc hba data structure. 7858 * 7859 * This routine is called to prepare the SLI3 device for PCI slot permanently 7860 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 7861 * pending I/Os. 7862 **/ 7863 static void 7864 lpfc_prep_dev_for_perm_failure(struct lpfc_hba *phba) 7865 { 7866 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7867 "2711 PCI channel permanent disable for failure\n"); 7868 /* Block all SCSI devices' I/Os on the host */ 7869 lpfc_scsi_dev_block(phba); 7870 7871 /* stop all timers */ 7872 lpfc_stop_hba_timers(phba); 7873 7874 /* Clean up all driver's outstanding SCSI I/Os */ 7875 lpfc_sli_flush_fcp_rings(phba); 7876 } 7877 7878 /** 7879 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 7880 * @pdev: pointer to PCI device. 7881 * @state: the current PCI connection state. 7882 * 7883 * This routine is called from the PCI subsystem for I/O error handling to 7884 * device with SLI-3 interface spec. This function is called by the PCI 7885 * subsystem after a PCI bus error affecting this device has been detected. 7886 * When this function is invoked, it will need to stop all the I/Os and 7887 * interrupt(s) to the device. Once that is done, it will return 7888 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 7889 * as desired. 7890 * 7891 * Return codes 7892 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 7893 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7894 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7895 **/ 7896 static pci_ers_result_t 7897 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 7898 { 7899 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7900 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7901 7902 switch (state) { 7903 case pci_channel_io_normal: 7904 /* Non-fatal error, prepare for recovery */ 7905 lpfc_sli_prep_dev_for_recover(phba); 7906 return PCI_ERS_RESULT_CAN_RECOVER; 7907 case pci_channel_io_frozen: 7908 /* Fatal error, prepare for slot reset */ 7909 lpfc_sli_prep_dev_for_reset(phba); 7910 return PCI_ERS_RESULT_NEED_RESET; 7911 case pci_channel_io_perm_failure: 7912 /* Permanent failure, prepare for device down */ 7913 lpfc_prep_dev_for_perm_failure(phba); 7914 return PCI_ERS_RESULT_DISCONNECT; 7915 default: 7916 /* Unknown state, prepare and request slot reset */ 7917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7918 "0472 Unknown PCI error state: x%x\n", state); 7919 lpfc_sli_prep_dev_for_reset(phba); 7920 return PCI_ERS_RESULT_NEED_RESET; 7921 } 7922 } 7923 7924 /** 7925 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 7926 * @pdev: pointer to PCI device. 7927 * 7928 * This routine is called from the PCI subsystem for error handling to 7929 * device with SLI-3 interface spec. This is called after PCI bus has been 7930 * reset to restart the PCI card from scratch, as if from a cold-boot. 7931 * During the PCI subsystem error recovery, after driver returns 7932 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 7933 * recovery and then call this routine before calling the .resume method 7934 * to recover the device. This function will initialize the HBA device, 7935 * enable the interrupt, but it will just put the HBA to offline state 7936 * without passing any I/O traffic. 7937 * 7938 * Return codes 7939 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7940 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7941 */ 7942 static pci_ers_result_t 7943 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 7944 { 7945 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7946 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7947 struct lpfc_sli *psli = &phba->sli; 7948 uint32_t intr_mode; 7949 7950 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 7951 if (pci_enable_device_mem(pdev)) { 7952 printk(KERN_ERR "lpfc: Cannot re-enable " 7953 "PCI device after reset.\n"); 7954 return PCI_ERS_RESULT_DISCONNECT; 7955 } 7956 7957 pci_restore_state(pdev); 7958 7959 /* 7960 * As the new kernel behavior of pci_restore_state() API call clears 7961 * device saved_state flag, need to save the restored state again. 7962 */ 7963 pci_save_state(pdev); 7964 7965 if (pdev->is_busmaster) 7966 pci_set_master(pdev); 7967 7968 spin_lock_irq(&phba->hbalock); 7969 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 7970 spin_unlock_irq(&phba->hbalock); 7971 7972 /* Configure and enable interrupt */ 7973 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7974 if (intr_mode == LPFC_INTR_ERROR) { 7975 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7976 "0427 Cannot re-enable interrupt after " 7977 "slot reset.\n"); 7978 return PCI_ERS_RESULT_DISCONNECT; 7979 } else 7980 phba->intr_mode = intr_mode; 7981 7982 /* Take device offline; this will perform cleanup */ 7983 lpfc_offline(phba); 7984 lpfc_sli_brdrestart(phba); 7985 7986 /* Log the current active interrupt mode */ 7987 lpfc_log_intr_mode(phba, phba->intr_mode); 7988 7989 return PCI_ERS_RESULT_RECOVERED; 7990 } 7991 7992 /** 7993 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 7994 * @pdev: pointer to PCI device 7995 * 7996 * This routine is called from the PCI subsystem for error handling to device 7997 * with SLI-3 interface spec. It is called when kernel error recovery tells 7998 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 7999 * error recovery. After this call, traffic can start to flow from this device 8000 * again. 8001 */ 8002 static void 8003 lpfc_io_resume_s3(struct pci_dev *pdev) 8004 { 8005 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8006 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8007 8008 /* Bring device online, it will be no-op for non-fatal error resume */ 8009 lpfc_online(phba); 8010 8011 /* Clean up Advanced Error Reporting (AER) if needed */ 8012 if (phba->hba_flag & HBA_AER_ENABLED) 8013 pci_cleanup_aer_uncorrect_error_status(pdev); 8014 } 8015 8016 /** 8017 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 8018 * @phba: pointer to lpfc hba data structure. 8019 * 8020 * returns the number of ELS/CT IOCBs to reserve 8021 **/ 8022 int 8023 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 8024 { 8025 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 8026 8027 if (phba->sli_rev == LPFC_SLI_REV4) { 8028 if (max_xri <= 100) 8029 return 10; 8030 else if (max_xri <= 256) 8031 return 25; 8032 else if (max_xri <= 512) 8033 return 50; 8034 else if (max_xri <= 1024) 8035 return 100; 8036 else 8037 return 150; 8038 } else 8039 return 0; 8040 } 8041 8042 /** 8043 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 8044 * @pdev: pointer to PCI device 8045 * @pid: pointer to PCI device identifier 8046 * 8047 * This routine is called from the kernel's PCI subsystem to device with 8048 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8049 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8050 * information of the device and driver to see if the driver state that it 8051 * can support this kind of device. If the match is successful, the driver 8052 * core invokes this routine. If this routine determines it can claim the HBA, 8053 * it does all the initialization that it needs to do to handle the HBA 8054 * properly. 8055 * 8056 * Return code 8057 * 0 - driver can claim the device 8058 * negative value - driver can not claim the device 8059 **/ 8060 static int __devinit 8061 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 8062 { 8063 struct lpfc_hba *phba; 8064 struct lpfc_vport *vport = NULL; 8065 struct Scsi_Host *shost = NULL; 8066 int error; 8067 uint32_t cfg_mode, intr_mode; 8068 int mcnt; 8069 8070 /* Allocate memory for HBA structure */ 8071 phba = lpfc_hba_alloc(pdev); 8072 if (!phba) 8073 return -ENOMEM; 8074 8075 /* Perform generic PCI device enabling operation */ 8076 error = lpfc_enable_pci_dev(phba); 8077 if (error) { 8078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8079 "1409 Failed to enable pci device.\n"); 8080 goto out_free_phba; 8081 } 8082 8083 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 8084 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 8085 if (error) 8086 goto out_disable_pci_dev; 8087 8088 /* Set up SLI-4 specific device PCI memory space */ 8089 error = lpfc_sli4_pci_mem_setup(phba); 8090 if (error) { 8091 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8092 "1410 Failed to set up pci memory space.\n"); 8093 goto out_disable_pci_dev; 8094 } 8095 8096 /* Set up phase-1 common device driver resources */ 8097 error = lpfc_setup_driver_resource_phase1(phba); 8098 if (error) { 8099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8100 "1411 Failed to set up driver resource.\n"); 8101 goto out_unset_pci_mem_s4; 8102 } 8103 8104 /* Set up SLI-4 Specific device driver resources */ 8105 error = lpfc_sli4_driver_resource_setup(phba); 8106 if (error) { 8107 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8108 "1412 Failed to set up driver resource.\n"); 8109 goto out_unset_pci_mem_s4; 8110 } 8111 8112 /* Initialize and populate the iocb list per host */ 8113 error = lpfc_init_iocb_list(phba, 8114 phba->sli4_hba.max_cfg_param.max_xri); 8115 if (error) { 8116 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8117 "1413 Failed to initialize iocb list.\n"); 8118 goto out_unset_driver_resource_s4; 8119 } 8120 8121 /* Set up common device driver resources */ 8122 error = lpfc_setup_driver_resource_phase2(phba); 8123 if (error) { 8124 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8125 "1414 Failed to set up driver resource.\n"); 8126 goto out_free_iocb_list; 8127 } 8128 8129 /* Create SCSI host to the physical port */ 8130 error = lpfc_create_shost(phba); 8131 if (error) { 8132 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8133 "1415 Failed to create scsi host.\n"); 8134 goto out_unset_driver_resource; 8135 } 8136 8137 /* Configure sysfs attributes */ 8138 vport = phba->pport; 8139 error = lpfc_alloc_sysfs_attr(vport); 8140 if (error) { 8141 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8142 "1416 Failed to allocate sysfs attr\n"); 8143 goto out_destroy_shost; 8144 } 8145 8146 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8147 /* Now, trying to enable interrupt and bring up the device */ 8148 cfg_mode = phba->cfg_use_msi; 8149 while (true) { 8150 /* Put device to a known state before enabling interrupt */ 8151 lpfc_stop_port(phba); 8152 /* Configure and enable interrupt */ 8153 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 8154 if (intr_mode == LPFC_INTR_ERROR) { 8155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8156 "0426 Failed to enable interrupt.\n"); 8157 error = -ENODEV; 8158 goto out_free_sysfs_attr; 8159 } 8160 /* Default to single FCP EQ for non-MSI-X */ 8161 if (phba->intr_type != MSIX) 8162 phba->cfg_fcp_eq_count = 1; 8163 /* Set up SLI-4 HBA */ 8164 if (lpfc_sli4_hba_setup(phba)) { 8165 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8166 "1421 Failed to set up hba\n"); 8167 error = -ENODEV; 8168 goto out_disable_intr; 8169 } 8170 8171 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 8172 if (intr_mode != 0) 8173 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 8174 LPFC_ACT_INTR_CNT); 8175 8176 /* Check active interrupts received only for MSI/MSI-X */ 8177 if (intr_mode == 0 || 8178 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 8179 /* Log the current active interrupt mode */ 8180 phba->intr_mode = intr_mode; 8181 lpfc_log_intr_mode(phba, intr_mode); 8182 break; 8183 } 8184 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8185 "0451 Configure interrupt mode (%d) " 8186 "failed active interrupt test.\n", 8187 intr_mode); 8188 /* Unset the preivous SLI-4 HBA setup */ 8189 lpfc_sli4_unset_hba(phba); 8190 /* Try next level of interrupt mode */ 8191 cfg_mode = --intr_mode; 8192 } 8193 8194 /* Perform post initialization setup */ 8195 lpfc_post_init_setup(phba); 8196 8197 /* Check if there are static vports to be created. */ 8198 lpfc_create_static_vport(phba); 8199 8200 return 0; 8201 8202 out_disable_intr: 8203 lpfc_sli4_disable_intr(phba); 8204 out_free_sysfs_attr: 8205 lpfc_free_sysfs_attr(vport); 8206 out_destroy_shost: 8207 lpfc_destroy_shost(phba); 8208 out_unset_driver_resource: 8209 lpfc_unset_driver_resource_phase2(phba); 8210 out_free_iocb_list: 8211 lpfc_free_iocb_list(phba); 8212 out_unset_driver_resource_s4: 8213 lpfc_sli4_driver_resource_unset(phba); 8214 out_unset_pci_mem_s4: 8215 lpfc_sli4_pci_mem_unset(phba); 8216 out_disable_pci_dev: 8217 lpfc_disable_pci_dev(phba); 8218 if (shost) 8219 scsi_host_put(shost); 8220 out_free_phba: 8221 lpfc_hba_free(phba); 8222 return error; 8223 } 8224 8225 /** 8226 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 8227 * @pdev: pointer to PCI device 8228 * 8229 * This routine is called from the kernel's PCI subsystem to device with 8230 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8231 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8232 * device to be removed from the PCI subsystem properly. 8233 **/ 8234 static void __devexit 8235 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 8236 { 8237 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8238 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8239 struct lpfc_vport **vports; 8240 struct lpfc_hba *phba = vport->phba; 8241 int i; 8242 8243 /* Mark the device unloading flag */ 8244 spin_lock_irq(&phba->hbalock); 8245 vport->load_flag |= FC_UNLOADING; 8246 spin_unlock_irq(&phba->hbalock); 8247 8248 /* Free the HBA sysfs attributes */ 8249 lpfc_free_sysfs_attr(vport); 8250 8251 /* Release all the vports against this physical port */ 8252 vports = lpfc_create_vport_work_array(phba); 8253 if (vports != NULL) 8254 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 8255 fc_vport_terminate(vports[i]->fc_vport); 8256 lpfc_destroy_vport_work_array(phba, vports); 8257 8258 /* Remove FC host and then SCSI host with the physical port */ 8259 fc_remove_host(shost); 8260 scsi_remove_host(shost); 8261 8262 /* Perform cleanup on the physical port */ 8263 lpfc_cleanup(vport); 8264 8265 /* 8266 * Bring down the SLI Layer. This step disables all interrupts, 8267 * clears the rings, discards all mailbox commands, and resets 8268 * the HBA FCoE function. 8269 */ 8270 lpfc_debugfs_terminate(vport); 8271 lpfc_sli4_hba_unset(phba); 8272 8273 spin_lock_irq(&phba->hbalock); 8274 list_del_init(&vport->listentry); 8275 spin_unlock_irq(&phba->hbalock); 8276 8277 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi 8278 * buffers are released to their corresponding pools here. 8279 */ 8280 lpfc_scsi_free(phba); 8281 lpfc_sli4_driver_resource_unset(phba); 8282 8283 /* Unmap adapter Control and Doorbell registers */ 8284 lpfc_sli4_pci_mem_unset(phba); 8285 8286 /* Release PCI resources and disable device's PCI function */ 8287 scsi_host_put(shost); 8288 lpfc_disable_pci_dev(phba); 8289 8290 /* Finally, free the driver's device data structure */ 8291 lpfc_hba_free(phba); 8292 8293 return; 8294 } 8295 8296 /** 8297 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 8298 * @pdev: pointer to PCI device 8299 * @msg: power management message 8300 * 8301 * This routine is called from the kernel's PCI subsystem to support system 8302 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 8303 * this method, it quiesces the device by stopping the driver's worker 8304 * thread for the device, turning off device's interrupt and DMA, and bring 8305 * the device offline. Note that as the driver implements the minimum PM 8306 * requirements to a power-aware driver's PM support for suspend/resume -- all 8307 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 8308 * method call will be treated as SUSPEND and the driver will fully 8309 * reinitialize its device during resume() method call, the driver will set 8310 * device to PCI_D3hot state in PCI config space instead of setting it 8311 * according to the @msg provided by the PM. 8312 * 8313 * Return code 8314 * 0 - driver suspended the device 8315 * Error otherwise 8316 **/ 8317 static int 8318 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 8319 { 8320 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8321 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8322 8323 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8324 "0298 PCI device Power Management suspend.\n"); 8325 8326 /* Bring down the device */ 8327 lpfc_offline_prep(phba); 8328 lpfc_offline(phba); 8329 kthread_stop(phba->worker_thread); 8330 8331 /* Disable interrupt from device */ 8332 lpfc_sli4_disable_intr(phba); 8333 8334 /* Save device state to PCI config space */ 8335 pci_save_state(pdev); 8336 pci_set_power_state(pdev, PCI_D3hot); 8337 8338 return 0; 8339 } 8340 8341 /** 8342 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 8343 * @pdev: pointer to PCI device 8344 * 8345 * This routine is called from the kernel's PCI subsystem to support system 8346 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 8347 * this method, it restores the device's PCI config space state and fully 8348 * reinitializes the device and brings it online. Note that as the driver 8349 * implements the minimum PM requirements to a power-aware driver's PM for 8350 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8351 * to the suspend() method call will be treated as SUSPEND and the driver 8352 * will fully reinitialize its device during resume() method call, the device 8353 * will be set to PCI_D0 directly in PCI config space before restoring the 8354 * state. 8355 * 8356 * Return code 8357 * 0 - driver suspended the device 8358 * Error otherwise 8359 **/ 8360 static int 8361 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 8362 { 8363 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8364 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8365 uint32_t intr_mode; 8366 int error; 8367 8368 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8369 "0292 PCI device Power Management resume.\n"); 8370 8371 /* Restore device state from PCI config space */ 8372 pci_set_power_state(pdev, PCI_D0); 8373 pci_restore_state(pdev); 8374 8375 /* 8376 * As the new kernel behavior of pci_restore_state() API call clears 8377 * device saved_state flag, need to save the restored state again. 8378 */ 8379 pci_save_state(pdev); 8380 8381 if (pdev->is_busmaster) 8382 pci_set_master(pdev); 8383 8384 /* Startup the kernel thread for this host adapter. */ 8385 phba->worker_thread = kthread_run(lpfc_do_work, phba, 8386 "lpfc_worker_%d", phba->brd_no); 8387 if (IS_ERR(phba->worker_thread)) { 8388 error = PTR_ERR(phba->worker_thread); 8389 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8390 "0293 PM resume failed to start worker " 8391 "thread: error=x%x.\n", error); 8392 return error; 8393 } 8394 8395 /* Configure and enable interrupt */ 8396 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 8397 if (intr_mode == LPFC_INTR_ERROR) { 8398 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8399 "0294 PM resume Failed to enable interrupt\n"); 8400 return -EIO; 8401 } else 8402 phba->intr_mode = intr_mode; 8403 8404 /* Restart HBA and bring it online */ 8405 lpfc_sli_brdrestart(phba); 8406 lpfc_online(phba); 8407 8408 /* Log the current active interrupt mode */ 8409 lpfc_log_intr_mode(phba, phba->intr_mode); 8410 8411 return 0; 8412 } 8413 8414 /** 8415 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 8416 * @pdev: pointer to PCI device. 8417 * @state: the current PCI connection state. 8418 * 8419 * This routine is called from the PCI subsystem for error handling to device 8420 * with SLI-4 interface spec. This function is called by the PCI subsystem 8421 * after a PCI bus error affecting this device has been detected. When this 8422 * function is invoked, it will need to stop all the I/Os and interrupt(s) 8423 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 8424 * for the PCI subsystem to perform proper recovery as desired. 8425 * 8426 * Return codes 8427 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8428 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8429 **/ 8430 static pci_ers_result_t 8431 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 8432 { 8433 return PCI_ERS_RESULT_NEED_RESET; 8434 } 8435 8436 /** 8437 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 8438 * @pdev: pointer to PCI device. 8439 * 8440 * This routine is called from the PCI subsystem for error handling to device 8441 * with SLI-4 interface spec. It is called after PCI bus has been reset to 8442 * restart the PCI card from scratch, as if from a cold-boot. During the 8443 * PCI subsystem error recovery, after the driver returns 8444 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 8445 * recovery and then call this routine before calling the .resume method to 8446 * recover the device. This function will initialize the HBA device, enable 8447 * the interrupt, but it will just put the HBA to offline state without 8448 * passing any I/O traffic. 8449 * 8450 * Return codes 8451 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8452 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8453 */ 8454 static pci_ers_result_t 8455 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 8456 { 8457 return PCI_ERS_RESULT_RECOVERED; 8458 } 8459 8460 /** 8461 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 8462 * @pdev: pointer to PCI device 8463 * 8464 * This routine is called from the PCI subsystem for error handling to device 8465 * with SLI-4 interface spec. It is called when kernel error recovery tells 8466 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8467 * error recovery. After this call, traffic can start to flow from this device 8468 * again. 8469 **/ 8470 static void 8471 lpfc_io_resume_s4(struct pci_dev *pdev) 8472 { 8473 return; 8474 } 8475 8476 /** 8477 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 8478 * @pdev: pointer to PCI device 8479 * @pid: pointer to PCI device identifier 8480 * 8481 * This routine is to be registered to the kernel's PCI subsystem. When an 8482 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 8483 * at PCI device-specific information of the device and driver to see if the 8484 * driver state that it can support this kind of device. If the match is 8485 * successful, the driver core invokes this routine. This routine dispatches 8486 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 8487 * do all the initialization that it needs to do to handle the HBA device 8488 * properly. 8489 * 8490 * Return code 8491 * 0 - driver can claim the device 8492 * negative value - driver can not claim the device 8493 **/ 8494 static int __devinit 8495 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 8496 { 8497 int rc; 8498 struct lpfc_sli_intf intf; 8499 8500 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 8501 return -ENODEV; 8502 8503 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 8504 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 8505 rc = lpfc_pci_probe_one_s4(pdev, pid); 8506 else 8507 rc = lpfc_pci_probe_one_s3(pdev, pid); 8508 8509 return rc; 8510 } 8511 8512 /** 8513 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 8514 * @pdev: pointer to PCI device 8515 * 8516 * This routine is to be registered to the kernel's PCI subsystem. When an 8517 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 8518 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 8519 * remove routine, which will perform all the necessary cleanup for the 8520 * device to be removed from the PCI subsystem properly. 8521 **/ 8522 static void __devexit 8523 lpfc_pci_remove_one(struct pci_dev *pdev) 8524 { 8525 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8526 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8527 8528 switch (phba->pci_dev_grp) { 8529 case LPFC_PCI_DEV_LP: 8530 lpfc_pci_remove_one_s3(pdev); 8531 break; 8532 case LPFC_PCI_DEV_OC: 8533 lpfc_pci_remove_one_s4(pdev); 8534 break; 8535 default: 8536 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8537 "1424 Invalid PCI device group: 0x%x\n", 8538 phba->pci_dev_grp); 8539 break; 8540 } 8541 return; 8542 } 8543 8544 /** 8545 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 8546 * @pdev: pointer to PCI device 8547 * @msg: power management message 8548 * 8549 * This routine is to be registered to the kernel's PCI subsystem to support 8550 * system Power Management (PM). When PM invokes this method, it dispatches 8551 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 8552 * suspend the device. 8553 * 8554 * Return code 8555 * 0 - driver suspended the device 8556 * Error otherwise 8557 **/ 8558 static int 8559 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 8560 { 8561 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8562 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8563 int rc = -ENODEV; 8564 8565 switch (phba->pci_dev_grp) { 8566 case LPFC_PCI_DEV_LP: 8567 rc = lpfc_pci_suspend_one_s3(pdev, msg); 8568 break; 8569 case LPFC_PCI_DEV_OC: 8570 rc = lpfc_pci_suspend_one_s4(pdev, msg); 8571 break; 8572 default: 8573 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8574 "1425 Invalid PCI device group: 0x%x\n", 8575 phba->pci_dev_grp); 8576 break; 8577 } 8578 return rc; 8579 } 8580 8581 /** 8582 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 8583 * @pdev: pointer to PCI device 8584 * 8585 * This routine is to be registered to the kernel's PCI subsystem to support 8586 * system Power Management (PM). When PM invokes this method, it dispatches 8587 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 8588 * resume the device. 8589 * 8590 * Return code 8591 * 0 - driver suspended the device 8592 * Error otherwise 8593 **/ 8594 static int 8595 lpfc_pci_resume_one(struct pci_dev *pdev) 8596 { 8597 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8598 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8599 int rc = -ENODEV; 8600 8601 switch (phba->pci_dev_grp) { 8602 case LPFC_PCI_DEV_LP: 8603 rc = lpfc_pci_resume_one_s3(pdev); 8604 break; 8605 case LPFC_PCI_DEV_OC: 8606 rc = lpfc_pci_resume_one_s4(pdev); 8607 break; 8608 default: 8609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8610 "1426 Invalid PCI device group: 0x%x\n", 8611 phba->pci_dev_grp); 8612 break; 8613 } 8614 return rc; 8615 } 8616 8617 /** 8618 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 8619 * @pdev: pointer to PCI device. 8620 * @state: the current PCI connection state. 8621 * 8622 * This routine is registered to the PCI subsystem for error handling. This 8623 * function is called by the PCI subsystem after a PCI bus error affecting 8624 * this device has been detected. When this routine is invoked, it dispatches 8625 * the action to the proper SLI-3 or SLI-4 device error detected handling 8626 * routine, which will perform the proper error detected operation. 8627 * 8628 * Return codes 8629 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8630 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8631 **/ 8632 static pci_ers_result_t 8633 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 8634 { 8635 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8636 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8637 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 8638 8639 switch (phba->pci_dev_grp) { 8640 case LPFC_PCI_DEV_LP: 8641 rc = lpfc_io_error_detected_s3(pdev, state); 8642 break; 8643 case LPFC_PCI_DEV_OC: 8644 rc = lpfc_io_error_detected_s4(pdev, state); 8645 break; 8646 default: 8647 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8648 "1427 Invalid PCI device group: 0x%x\n", 8649 phba->pci_dev_grp); 8650 break; 8651 } 8652 return rc; 8653 } 8654 8655 /** 8656 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 8657 * @pdev: pointer to PCI device. 8658 * 8659 * This routine is registered to the PCI subsystem for error handling. This 8660 * function is called after PCI bus has been reset to restart the PCI card 8661 * from scratch, as if from a cold-boot. When this routine is invoked, it 8662 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 8663 * routine, which will perform the proper device reset. 8664 * 8665 * Return codes 8666 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8667 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8668 **/ 8669 static pci_ers_result_t 8670 lpfc_io_slot_reset(struct pci_dev *pdev) 8671 { 8672 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8673 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8674 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 8675 8676 switch (phba->pci_dev_grp) { 8677 case LPFC_PCI_DEV_LP: 8678 rc = lpfc_io_slot_reset_s3(pdev); 8679 break; 8680 case LPFC_PCI_DEV_OC: 8681 rc = lpfc_io_slot_reset_s4(pdev); 8682 break; 8683 default: 8684 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8685 "1428 Invalid PCI device group: 0x%x\n", 8686 phba->pci_dev_grp); 8687 break; 8688 } 8689 return rc; 8690 } 8691 8692 /** 8693 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 8694 * @pdev: pointer to PCI device 8695 * 8696 * This routine is registered to the PCI subsystem for error handling. It 8697 * is called when kernel error recovery tells the lpfc driver that it is 8698 * OK to resume normal PCI operation after PCI bus error recovery. When 8699 * this routine is invoked, it dispatches the action to the proper SLI-3 8700 * or SLI-4 device io_resume routine, which will resume the device operation. 8701 **/ 8702 static void 8703 lpfc_io_resume(struct pci_dev *pdev) 8704 { 8705 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8706 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8707 8708 switch (phba->pci_dev_grp) { 8709 case LPFC_PCI_DEV_LP: 8710 lpfc_io_resume_s3(pdev); 8711 break; 8712 case LPFC_PCI_DEV_OC: 8713 lpfc_io_resume_s4(pdev); 8714 break; 8715 default: 8716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8717 "1429 Invalid PCI device group: 0x%x\n", 8718 phba->pci_dev_grp); 8719 break; 8720 } 8721 return; 8722 } 8723 8724 static struct pci_device_id lpfc_id_table[] = { 8725 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 8726 PCI_ANY_ID, PCI_ANY_ID, }, 8727 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 8728 PCI_ANY_ID, PCI_ANY_ID, }, 8729 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 8730 PCI_ANY_ID, PCI_ANY_ID, }, 8731 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 8732 PCI_ANY_ID, PCI_ANY_ID, }, 8733 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 8734 PCI_ANY_ID, PCI_ANY_ID, }, 8735 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 8736 PCI_ANY_ID, PCI_ANY_ID, }, 8737 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 8738 PCI_ANY_ID, PCI_ANY_ID, }, 8739 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 8740 PCI_ANY_ID, PCI_ANY_ID, }, 8741 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 8742 PCI_ANY_ID, PCI_ANY_ID, }, 8743 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 8744 PCI_ANY_ID, PCI_ANY_ID, }, 8745 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 8746 PCI_ANY_ID, PCI_ANY_ID, }, 8747 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 8748 PCI_ANY_ID, PCI_ANY_ID, }, 8749 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 8750 PCI_ANY_ID, PCI_ANY_ID, }, 8751 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 8752 PCI_ANY_ID, PCI_ANY_ID, }, 8753 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 8754 PCI_ANY_ID, PCI_ANY_ID, }, 8755 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 8756 PCI_ANY_ID, PCI_ANY_ID, }, 8757 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 8758 PCI_ANY_ID, PCI_ANY_ID, }, 8759 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 8760 PCI_ANY_ID, PCI_ANY_ID, }, 8761 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 8762 PCI_ANY_ID, PCI_ANY_ID, }, 8763 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 8764 PCI_ANY_ID, PCI_ANY_ID, }, 8765 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 8766 PCI_ANY_ID, PCI_ANY_ID, }, 8767 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 8768 PCI_ANY_ID, PCI_ANY_ID, }, 8769 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 8770 PCI_ANY_ID, PCI_ANY_ID, }, 8771 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 8772 PCI_ANY_ID, PCI_ANY_ID, }, 8773 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 8774 PCI_ANY_ID, PCI_ANY_ID, }, 8775 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 8776 PCI_ANY_ID, PCI_ANY_ID, }, 8777 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 8778 PCI_ANY_ID, PCI_ANY_ID, }, 8779 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 8780 PCI_ANY_ID, PCI_ANY_ID, }, 8781 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 8782 PCI_ANY_ID, PCI_ANY_ID, }, 8783 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 8784 PCI_ANY_ID, PCI_ANY_ID, }, 8785 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 8786 PCI_ANY_ID, PCI_ANY_ID, }, 8787 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 8788 PCI_ANY_ID, PCI_ANY_ID, }, 8789 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 8790 PCI_ANY_ID, PCI_ANY_ID, }, 8791 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 8792 PCI_ANY_ID, PCI_ANY_ID, }, 8793 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 8794 PCI_ANY_ID, PCI_ANY_ID, }, 8795 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 8796 PCI_ANY_ID, PCI_ANY_ID, }, 8797 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 8798 PCI_ANY_ID, PCI_ANY_ID, }, 8799 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 8800 PCI_ANY_ID, PCI_ANY_ID, }, 8801 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 8802 PCI_ANY_ID, PCI_ANY_ID, }, 8803 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 8804 PCI_ANY_ID, PCI_ANY_ID, }, 8805 { 0 } 8806 }; 8807 8808 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 8809 8810 static struct pci_error_handlers lpfc_err_handler = { 8811 .error_detected = lpfc_io_error_detected, 8812 .slot_reset = lpfc_io_slot_reset, 8813 .resume = lpfc_io_resume, 8814 }; 8815 8816 static struct pci_driver lpfc_driver = { 8817 .name = LPFC_DRIVER_NAME, 8818 .id_table = lpfc_id_table, 8819 .probe = lpfc_pci_probe_one, 8820 .remove = __devexit_p(lpfc_pci_remove_one), 8821 .suspend = lpfc_pci_suspend_one, 8822 .resume = lpfc_pci_resume_one, 8823 .err_handler = &lpfc_err_handler, 8824 }; 8825 8826 /** 8827 * lpfc_init - lpfc module initialization routine 8828 * 8829 * This routine is to be invoked when the lpfc module is loaded into the 8830 * kernel. The special kernel macro module_init() is used to indicate the 8831 * role of this routine to the kernel as lpfc module entry point. 8832 * 8833 * Return codes 8834 * 0 - successful 8835 * -ENOMEM - FC attach transport failed 8836 * all others - failed 8837 */ 8838 static int __init 8839 lpfc_init(void) 8840 { 8841 int error = 0; 8842 8843 printk(LPFC_MODULE_DESC "\n"); 8844 printk(LPFC_COPYRIGHT "\n"); 8845 8846 if (lpfc_enable_npiv) { 8847 lpfc_transport_functions.vport_create = lpfc_vport_create; 8848 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 8849 } 8850 lpfc_transport_template = 8851 fc_attach_transport(&lpfc_transport_functions); 8852 if (lpfc_transport_template == NULL) 8853 return -ENOMEM; 8854 if (lpfc_enable_npiv) { 8855 lpfc_vport_transport_template = 8856 fc_attach_transport(&lpfc_vport_transport_functions); 8857 if (lpfc_vport_transport_template == NULL) { 8858 fc_release_transport(lpfc_transport_template); 8859 return -ENOMEM; 8860 } 8861 } 8862 error = pci_register_driver(&lpfc_driver); 8863 if (error) { 8864 fc_release_transport(lpfc_transport_template); 8865 if (lpfc_enable_npiv) 8866 fc_release_transport(lpfc_vport_transport_template); 8867 } 8868 8869 return error; 8870 } 8871 8872 /** 8873 * lpfc_exit - lpfc module removal routine 8874 * 8875 * This routine is invoked when the lpfc module is removed from the kernel. 8876 * The special kernel macro module_exit() is used to indicate the role of 8877 * this routine to the kernel as lpfc module exit point. 8878 */ 8879 static void __exit 8880 lpfc_exit(void) 8881 { 8882 pci_unregister_driver(&lpfc_driver); 8883 fc_release_transport(lpfc_transport_template); 8884 if (lpfc_enable_npiv) 8885 fc_release_transport(lpfc_vport_transport_template); 8886 if (_dump_buf_data) { 8887 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 8888 "_dump_buf_data at 0x%p\n", 8889 (1L << _dump_buf_data_order), _dump_buf_data); 8890 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 8891 } 8892 8893 if (_dump_buf_dif) { 8894 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 8895 "_dump_buf_dif at 0x%p\n", 8896 (1L << _dump_buf_dif_order), _dump_buf_dif); 8897 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 8898 } 8899 } 8900 8901 module_init(lpfc_init); 8902 module_exit(lpfc_exit); 8903 MODULE_LICENSE("GPL"); 8904 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 8905 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 8906 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 8907