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; 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 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 2604 phba->menlo_flag |= HBA_MENLO_SUPPORT; 2605 /* check for menlo minimum sg count */ 2606 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) { 2607 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 2608 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2609 } 2610 } 2611 2612 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 2613 if (error) 2614 goto out_put_shost; 2615 2616 spin_lock_irq(&phba->hbalock); 2617 list_add_tail(&vport->listentry, &phba->port_list); 2618 spin_unlock_irq(&phba->hbalock); 2619 return vport; 2620 2621 out_put_shost: 2622 scsi_host_put(shost); 2623 out: 2624 return NULL; 2625 } 2626 2627 /** 2628 * destroy_port - destroy an FC port 2629 * @vport: pointer to an lpfc virtual N_Port data structure. 2630 * 2631 * This routine destroys a FC port from the upper layer protocol. All the 2632 * resources associated with the port are released. 2633 **/ 2634 void 2635 destroy_port(struct lpfc_vport *vport) 2636 { 2637 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2638 struct lpfc_hba *phba = vport->phba; 2639 2640 lpfc_debugfs_terminate(vport); 2641 fc_remove_host(shost); 2642 scsi_remove_host(shost); 2643 2644 spin_lock_irq(&phba->hbalock); 2645 list_del_init(&vport->listentry); 2646 spin_unlock_irq(&phba->hbalock); 2647 2648 lpfc_cleanup(vport); 2649 return; 2650 } 2651 2652 /** 2653 * lpfc_get_instance - Get a unique integer ID 2654 * 2655 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2656 * uses the kernel idr facility to perform the task. 2657 * 2658 * Return codes: 2659 * instance - a unique integer ID allocated as the new instance. 2660 * -1 - lpfc get instance failed. 2661 **/ 2662 int 2663 lpfc_get_instance(void) 2664 { 2665 int instance = 0; 2666 2667 /* Assign an unused number */ 2668 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2669 return -1; 2670 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2671 return -1; 2672 return instance; 2673 } 2674 2675 /** 2676 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2677 * @shost: pointer to SCSI host data structure. 2678 * @time: elapsed time of the scan in jiffies. 2679 * 2680 * This routine is called by the SCSI layer with a SCSI host to determine 2681 * whether the scan host is finished. 2682 * 2683 * Note: there is no scan_start function as adapter initialization will have 2684 * asynchronously kicked off the link initialization. 2685 * 2686 * Return codes 2687 * 0 - SCSI host scan is not over yet. 2688 * 1 - SCSI host scan is over. 2689 **/ 2690 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2691 { 2692 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2693 struct lpfc_hba *phba = vport->phba; 2694 int stat = 0; 2695 2696 spin_lock_irq(shost->host_lock); 2697 2698 if (vport->load_flag & FC_UNLOADING) { 2699 stat = 1; 2700 goto finished; 2701 } 2702 if (time >= 30 * HZ) { 2703 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2704 "0461 Scanning longer than 30 " 2705 "seconds. Continuing initialization\n"); 2706 stat = 1; 2707 goto finished; 2708 } 2709 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2710 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2711 "0465 Link down longer than 15 " 2712 "seconds. Continuing initialization\n"); 2713 stat = 1; 2714 goto finished; 2715 } 2716 2717 if (vport->port_state != LPFC_VPORT_READY) 2718 goto finished; 2719 if (vport->num_disc_nodes || vport->fc_prli_sent) 2720 goto finished; 2721 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2722 goto finished; 2723 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2724 goto finished; 2725 2726 stat = 1; 2727 2728 finished: 2729 spin_unlock_irq(shost->host_lock); 2730 return stat; 2731 } 2732 2733 /** 2734 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 2735 * @shost: pointer to SCSI host data structure. 2736 * 2737 * This routine initializes a given SCSI host attributes on a FC port. The 2738 * SCSI host can be either on top of a physical port or a virtual port. 2739 **/ 2740 void lpfc_host_attrib_init(struct Scsi_Host *shost) 2741 { 2742 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2743 struct lpfc_hba *phba = vport->phba; 2744 /* 2745 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2746 */ 2747 2748 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2749 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2750 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2751 2752 memset(fc_host_supported_fc4s(shost), 0, 2753 sizeof(fc_host_supported_fc4s(shost))); 2754 fc_host_supported_fc4s(shost)[2] = 1; 2755 fc_host_supported_fc4s(shost)[7] = 1; 2756 2757 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2758 sizeof fc_host_symbolic_name(shost)); 2759 2760 fc_host_supported_speeds(shost) = 0; 2761 if (phba->lmt & LMT_10Gb) 2762 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2763 if (phba->lmt & LMT_8Gb) 2764 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2765 if (phba->lmt & LMT_4Gb) 2766 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2767 if (phba->lmt & LMT_2Gb) 2768 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2769 if (phba->lmt & LMT_1Gb) 2770 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2771 2772 fc_host_maxframe_size(shost) = 2773 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2774 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2775 2776 /* This value is also unchanging */ 2777 memset(fc_host_active_fc4s(shost), 0, 2778 sizeof(fc_host_active_fc4s(shost))); 2779 fc_host_active_fc4s(shost)[2] = 1; 2780 fc_host_active_fc4s(shost)[7] = 1; 2781 2782 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2783 spin_lock_irq(shost->host_lock); 2784 vport->load_flag &= ~FC_LOADING; 2785 spin_unlock_irq(shost->host_lock); 2786 } 2787 2788 /** 2789 * lpfc_stop_port_s3 - Stop SLI3 device port 2790 * @phba: pointer to lpfc hba data structure. 2791 * 2792 * This routine is invoked to stop an SLI3 device port, it stops the device 2793 * from generating interrupts and stops the device driver's timers for the 2794 * device. 2795 **/ 2796 static void 2797 lpfc_stop_port_s3(struct lpfc_hba *phba) 2798 { 2799 /* Clear all interrupt enable conditions */ 2800 writel(0, phba->HCregaddr); 2801 readl(phba->HCregaddr); /* flush */ 2802 /* Clear all pending interrupts */ 2803 writel(0xffffffff, phba->HAregaddr); 2804 readl(phba->HAregaddr); /* flush */ 2805 2806 /* Reset some HBA SLI setup states */ 2807 lpfc_stop_hba_timers(phba); 2808 phba->pport->work_port_events = 0; 2809 } 2810 2811 /** 2812 * lpfc_stop_port_s4 - Stop SLI4 device port 2813 * @phba: pointer to lpfc hba data structure. 2814 * 2815 * This routine is invoked to stop an SLI4 device port, it stops the device 2816 * from generating interrupts and stops the device driver's timers for the 2817 * device. 2818 **/ 2819 static void 2820 lpfc_stop_port_s4(struct lpfc_hba *phba) 2821 { 2822 /* Reset some HBA SLI4 setup states */ 2823 lpfc_stop_hba_timers(phba); 2824 phba->pport->work_port_events = 0; 2825 phba->sli4_hba.intr_enable = 0; 2826 } 2827 2828 /** 2829 * lpfc_stop_port - Wrapper function for stopping hba port 2830 * @phba: Pointer to HBA context object. 2831 * 2832 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 2833 * the API jump table function pointer from the lpfc_hba struct. 2834 **/ 2835 void 2836 lpfc_stop_port(struct lpfc_hba *phba) 2837 { 2838 phba->lpfc_stop_port(phba); 2839 } 2840 2841 /** 2842 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port. 2843 * @phba: pointer to lpfc hba data structure. 2844 * 2845 * This routine is invoked to remove the driver default fcf record from 2846 * the port. This routine currently acts on FCF Index 0. 2847 * 2848 **/ 2849 void 2850 lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba) 2851 { 2852 int rc = 0; 2853 LPFC_MBOXQ_t *mboxq; 2854 struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record; 2855 uint32_t mbox_tmo, req_len; 2856 uint32_t shdr_status, shdr_add_status; 2857 2858 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2859 if (!mboxq) { 2860 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2861 "2020 Failed to allocate mbox for ADD_FCF cmd\n"); 2862 return; 2863 } 2864 2865 req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) - 2866 sizeof(struct lpfc_sli4_cfg_mhdr); 2867 rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, 2868 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF, 2869 req_len, LPFC_SLI4_MBX_EMBED); 2870 /* 2871 * In phase 1, there is a single FCF index, 0. In phase2, the driver 2872 * supports multiple FCF indices. 2873 */ 2874 del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry; 2875 bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1); 2876 bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record, 2877 phba->fcf.current_rec.fcf_indx); 2878 2879 if (!phba->sli4_hba.intr_enable) 2880 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 2881 else { 2882 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 2883 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 2884 } 2885 /* The IOCTL status is embedded in the mailbox subheader. */ 2886 shdr_status = bf_get(lpfc_mbox_hdr_status, 2887 &del_fcf_record->header.cfg_shdr.response); 2888 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 2889 &del_fcf_record->header.cfg_shdr.response); 2890 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 2891 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2892 "2516 DEL FCF of default FCF Index failed " 2893 "mbx status x%x, status x%x add_status x%x\n", 2894 rc, shdr_status, shdr_add_status); 2895 } 2896 if (rc != MBX_TIMEOUT) 2897 mempool_free(mboxq, phba->mbox_mem_pool); 2898 } 2899 2900 /** 2901 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 2902 * @phba: Pointer to hba for which this call is being executed. 2903 * 2904 * This routine starts the timer waiting for the FCF rediscovery to complete. 2905 **/ 2906 void 2907 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 2908 { 2909 unsigned long fcf_redisc_wait_tmo = 2910 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 2911 /* Start fcf rediscovery wait period timer */ 2912 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 2913 spin_lock_irq(&phba->hbalock); 2914 /* Allow action to new fcf asynchronous event */ 2915 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2916 /* Mark the FCF rediscovery pending state */ 2917 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 2918 spin_unlock_irq(&phba->hbalock); 2919 } 2920 2921 /** 2922 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 2923 * @ptr: Map to lpfc_hba data structure pointer. 2924 * 2925 * This routine is invoked when waiting for FCF table rediscover has been 2926 * timed out. If new FCF record(s) has (have) been discovered during the 2927 * wait period, a new FCF event shall be added to the FCOE async event 2928 * list, and then worker thread shall be waked up for processing from the 2929 * worker thread context. 2930 **/ 2931 void 2932 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 2933 { 2934 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 2935 2936 /* Don't send FCF rediscovery event if timer cancelled */ 2937 spin_lock_irq(&phba->hbalock); 2938 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2939 spin_unlock_irq(&phba->hbalock); 2940 return; 2941 } 2942 /* Clear FCF rediscovery timer pending flag */ 2943 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2944 /* FCF rediscovery event to worker thread */ 2945 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 2946 spin_unlock_irq(&phba->hbalock); 2947 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2948 "2776 FCF rediscover wait timer expired, post " 2949 "a worker thread event for FCF table scan\n"); 2950 /* wake up worker thread */ 2951 lpfc_worker_wake_up(phba); 2952 } 2953 2954 /** 2955 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support 2956 * @phba: pointer to lpfc hba data structure. 2957 * 2958 * This function uses the QUERY_FW_CFG mailbox command to determine if the 2959 * firmware loaded supports FCoE. A return of zero indicates that the mailbox 2960 * was successful and the firmware supports FCoE. Any other return indicates 2961 * a error. It is assumed that this function will be called before interrupts 2962 * are enabled. 2963 **/ 2964 static int 2965 lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba) 2966 { 2967 int rc = 0; 2968 LPFC_MBOXQ_t *mboxq; 2969 struct lpfc_mbx_query_fw_cfg *query_fw_cfg; 2970 uint32_t length; 2971 uint32_t shdr_status, shdr_add_status; 2972 2973 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2974 if (!mboxq) { 2975 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2976 "2621 Failed to allocate mbox for " 2977 "query firmware config cmd\n"); 2978 return -ENOMEM; 2979 } 2980 query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg; 2981 length = (sizeof(struct lpfc_mbx_query_fw_cfg) - 2982 sizeof(struct lpfc_sli4_cfg_mhdr)); 2983 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 2984 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 2985 length, LPFC_SLI4_MBX_EMBED); 2986 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 2987 /* The IOCTL status is embedded in the mailbox subheader. */ 2988 shdr_status = bf_get(lpfc_mbox_hdr_status, 2989 &query_fw_cfg->header.cfg_shdr.response); 2990 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 2991 &query_fw_cfg->header.cfg_shdr.response); 2992 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 2993 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2994 "2622 Query Firmware Config failed " 2995 "mbx status x%x, status x%x add_status x%x\n", 2996 rc, shdr_status, shdr_add_status); 2997 return -EINVAL; 2998 } 2999 if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) { 3000 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3001 "2623 FCoE Function not supported by firmware. " 3002 "Function mode = %08x\n", 3003 query_fw_cfg->function_mode); 3004 return -EINVAL; 3005 } 3006 if (rc != MBX_TIMEOUT) 3007 mempool_free(mboxq, phba->mbox_mem_pool); 3008 return 0; 3009 } 3010 3011 /** 3012 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3013 * @phba: pointer to lpfc hba data structure. 3014 * @acqe_link: pointer to the async link completion queue entry. 3015 * 3016 * This routine is to parse the SLI4 link-attention link fault code and 3017 * translate it into the base driver's read link attention mailbox command 3018 * status. 3019 * 3020 * Return: Link-attention status in terms of base driver's coding. 3021 **/ 3022 static uint16_t 3023 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3024 struct lpfc_acqe_link *acqe_link) 3025 { 3026 uint16_t latt_fault; 3027 3028 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3029 case LPFC_ASYNC_LINK_FAULT_NONE: 3030 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3031 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3032 latt_fault = 0; 3033 break; 3034 default: 3035 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3036 "0398 Invalid link fault code: x%x\n", 3037 bf_get(lpfc_acqe_link_fault, acqe_link)); 3038 latt_fault = MBXERR_ERROR; 3039 break; 3040 } 3041 return latt_fault; 3042 } 3043 3044 /** 3045 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3046 * @phba: pointer to lpfc hba data structure. 3047 * @acqe_link: pointer to the async link completion queue entry. 3048 * 3049 * This routine is to parse the SLI4 link attention type and translate it 3050 * into the base driver's link attention type coding. 3051 * 3052 * Return: Link attention type in terms of base driver's coding. 3053 **/ 3054 static uint8_t 3055 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3056 struct lpfc_acqe_link *acqe_link) 3057 { 3058 uint8_t att_type; 3059 3060 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3061 case LPFC_ASYNC_LINK_STATUS_DOWN: 3062 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3063 att_type = AT_LINK_DOWN; 3064 break; 3065 case LPFC_ASYNC_LINK_STATUS_UP: 3066 /* Ignore physical link up events - wait for logical link up */ 3067 att_type = AT_RESERVED; 3068 break; 3069 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3070 att_type = AT_LINK_UP; 3071 break; 3072 default: 3073 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3074 "0399 Invalid link attention type: x%x\n", 3075 bf_get(lpfc_acqe_link_status, acqe_link)); 3076 att_type = AT_RESERVED; 3077 break; 3078 } 3079 return att_type; 3080 } 3081 3082 /** 3083 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3084 * @phba: pointer to lpfc hba data structure. 3085 * @acqe_link: pointer to the async link completion queue entry. 3086 * 3087 * This routine is to parse the SLI4 link-attention link speed and translate 3088 * it into the base driver's link-attention link speed coding. 3089 * 3090 * Return: Link-attention link speed in terms of base driver's coding. 3091 **/ 3092 static uint8_t 3093 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3094 struct lpfc_acqe_link *acqe_link) 3095 { 3096 uint8_t link_speed; 3097 3098 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3099 case LPFC_ASYNC_LINK_SPEED_ZERO: 3100 link_speed = LA_UNKNW_LINK; 3101 break; 3102 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3103 link_speed = LA_UNKNW_LINK; 3104 break; 3105 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3106 link_speed = LA_UNKNW_LINK; 3107 break; 3108 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3109 link_speed = LA_1GHZ_LINK; 3110 break; 3111 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3112 link_speed = LA_10GHZ_LINK; 3113 break; 3114 default: 3115 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3116 "0483 Invalid link-attention link speed: x%x\n", 3117 bf_get(lpfc_acqe_link_speed, acqe_link)); 3118 link_speed = LA_UNKNW_LINK; 3119 break; 3120 } 3121 return link_speed; 3122 } 3123 3124 /** 3125 * lpfc_sli4_async_link_evt - Process the asynchronous link event 3126 * @phba: pointer to lpfc hba data structure. 3127 * @acqe_link: pointer to the async link completion queue entry. 3128 * 3129 * This routine is to handle the SLI4 asynchronous link event. 3130 **/ 3131 static void 3132 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3133 struct lpfc_acqe_link *acqe_link) 3134 { 3135 struct lpfc_dmabuf *mp; 3136 LPFC_MBOXQ_t *pmb; 3137 MAILBOX_t *mb; 3138 READ_LA_VAR *la; 3139 uint8_t att_type; 3140 3141 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3142 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP) 3143 return; 3144 phba->fcoe_eventtag = acqe_link->event_tag; 3145 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3146 if (!pmb) { 3147 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3148 "0395 The mboxq allocation failed\n"); 3149 return; 3150 } 3151 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3152 if (!mp) { 3153 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3154 "0396 The lpfc_dmabuf allocation failed\n"); 3155 goto out_free_pmb; 3156 } 3157 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3158 if (!mp->virt) { 3159 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3160 "0397 The mbuf allocation failed\n"); 3161 goto out_free_dmabuf; 3162 } 3163 3164 /* Cleanup any outstanding ELS commands */ 3165 lpfc_els_flush_all_cmd(phba); 3166 3167 /* Block ELS IOCBs until we have done process link event */ 3168 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3169 3170 /* Update link event statistics */ 3171 phba->sli.slistat.link_event++; 3172 3173 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */ 3174 lpfc_read_la(phba, pmb, mp); 3175 pmb->vport = phba->pport; 3176 3177 /* Parse and translate status field */ 3178 mb = &pmb->u.mb; 3179 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3180 3181 /* Parse and translate link attention fields */ 3182 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA; 3183 la->eventTag = acqe_link->event_tag; 3184 la->attType = att_type; 3185 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link); 3186 3187 /* Fake the the following irrelvant fields */ 3188 la->topology = TOPOLOGY_PT_PT; 3189 la->granted_AL_PA = 0; 3190 la->il = 0; 3191 la->pb = 0; 3192 la->fa = 0; 3193 la->mm = 0; 3194 3195 /* Keep the link status for extra SLI4 state machine reference */ 3196 phba->sli4_hba.link_state.speed = 3197 bf_get(lpfc_acqe_link_speed, acqe_link); 3198 phba->sli4_hba.link_state.duplex = 3199 bf_get(lpfc_acqe_link_duplex, acqe_link); 3200 phba->sli4_hba.link_state.status = 3201 bf_get(lpfc_acqe_link_status, acqe_link); 3202 phba->sli4_hba.link_state.physical = 3203 bf_get(lpfc_acqe_link_physical, acqe_link); 3204 phba->sli4_hba.link_state.fault = 3205 bf_get(lpfc_acqe_link_fault, acqe_link); 3206 phba->sli4_hba.link_state.logical_speed = 3207 bf_get(lpfc_acqe_qos_link_speed, acqe_link); 3208 3209 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3210 lpfc_mbx_cmpl_read_la(phba, pmb); 3211 3212 return; 3213 3214 out_free_dmabuf: 3215 kfree(mp); 3216 out_free_pmb: 3217 mempool_free(pmb, phba->mbox_mem_pool); 3218 } 3219 3220 /** 3221 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3222 * @vport: pointer to vport data structure. 3223 * 3224 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3225 * response to a CVL event. 3226 * 3227 * Return the pointer to the ndlp with the vport if successful, otherwise 3228 * return NULL. 3229 **/ 3230 static struct lpfc_nodelist * 3231 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3232 { 3233 struct lpfc_nodelist *ndlp; 3234 struct Scsi_Host *shost; 3235 struct lpfc_hba *phba; 3236 3237 if (!vport) 3238 return NULL; 3239 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3240 if (!ndlp) 3241 return NULL; 3242 phba = vport->phba; 3243 if (!phba) 3244 return NULL; 3245 if (phba->pport->port_state <= LPFC_FLOGI) 3246 return NULL; 3247 /* If virtual link is not yet instantiated ignore CVL */ 3248 if (vport->port_state <= LPFC_FDISC) 3249 return NULL; 3250 shost = lpfc_shost_from_vport(vport); 3251 if (!shost) 3252 return NULL; 3253 lpfc_linkdown_port(vport); 3254 lpfc_cleanup_pending_mbox(vport); 3255 spin_lock_irq(shost->host_lock); 3256 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3257 spin_unlock_irq(shost->host_lock); 3258 3259 return ndlp; 3260 } 3261 3262 /** 3263 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3264 * @vport: pointer to lpfc hba data structure. 3265 * 3266 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3267 * response to a FCF dead event. 3268 **/ 3269 static void 3270 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3271 { 3272 struct lpfc_vport **vports; 3273 int i; 3274 3275 vports = lpfc_create_vport_work_array(phba); 3276 if (vports) 3277 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3278 lpfc_sli4_perform_vport_cvl(vports[i]); 3279 lpfc_destroy_vport_work_array(phba, vports); 3280 } 3281 3282 /** 3283 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event 3284 * @phba: pointer to lpfc hba data structure. 3285 * @acqe_link: pointer to the async fcoe completion queue entry. 3286 * 3287 * This routine is to handle the SLI4 asynchronous fcoe event. 3288 **/ 3289 static void 3290 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, 3291 struct lpfc_acqe_fcoe *acqe_fcoe) 3292 { 3293 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe); 3294 int rc; 3295 struct lpfc_vport *vport; 3296 struct lpfc_nodelist *ndlp; 3297 struct Scsi_Host *shost; 3298 int active_vlink_present; 3299 struct lpfc_vport **vports; 3300 int i; 3301 3302 phba->fc_eventTag = acqe_fcoe->event_tag; 3303 phba->fcoe_eventtag = acqe_fcoe->event_tag; 3304 switch (event_type) { 3305 case LPFC_FCOE_EVENT_TYPE_NEW_FCF: 3306 case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD: 3307 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3308 "2546 New FCF found/FCF parameter modified event: " 3309 "evt_tag:x%x, fcf_index:x%x\n", 3310 acqe_fcoe->event_tag, acqe_fcoe->index); 3311 3312 spin_lock_irq(&phba->hbalock); 3313 if ((phba->fcf.fcf_flag & FCF_SCAN_DONE) || 3314 (phba->hba_flag & FCF_DISC_INPROGRESS)) { 3315 /* 3316 * If the current FCF is in discovered state or 3317 * FCF discovery is in progress, do nothing. 3318 */ 3319 spin_unlock_irq(&phba->hbalock); 3320 break; 3321 } 3322 3323 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 3324 /* 3325 * If fast FCF failover rescan event is pending, 3326 * do nothing. 3327 */ 3328 spin_unlock_irq(&phba->hbalock); 3329 break; 3330 } 3331 spin_unlock_irq(&phba->hbalock); 3332 3333 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && 3334 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 3335 /* 3336 * During period of FCF discovery, read the FCF 3337 * table record indexed by the event to update 3338 * FCF round robin failover eligible FCF bmask. 3339 */ 3340 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3341 LOG_DISCOVERY, 3342 "2779 Read new FCF record with " 3343 "fcf_index:x%x for updating FCF " 3344 "round robin failover bmask\n", 3345 acqe_fcoe->index); 3346 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index); 3347 } 3348 3349 /* Otherwise, scan the entire FCF table and re-discover SAN */ 3350 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3351 "2770 Start FCF table scan due to new FCF " 3352 "event: evt_tag:x%x, fcf_index:x%x\n", 3353 acqe_fcoe->event_tag, acqe_fcoe->index); 3354 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3355 LPFC_FCOE_FCF_GET_FIRST); 3356 if (rc) 3357 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3358 "2547 Issue FCF scan read FCF mailbox " 3359 "command failed 0x%x\n", rc); 3360 break; 3361 3362 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL: 3363 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3364 "2548 FCF Table full count 0x%x tag 0x%x\n", 3365 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe), 3366 acqe_fcoe->event_tag); 3367 break; 3368 3369 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD: 3370 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3371 "2549 FCF disconnected from network index 0x%x" 3372 " tag 0x%x\n", acqe_fcoe->index, 3373 acqe_fcoe->event_tag); 3374 /* If the event is not for currently used fcf do nothing */ 3375 if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index) 3376 break; 3377 /* We request port to rediscover the entire FCF table for 3378 * a fast recovery from case that the current FCF record 3379 * is no longer valid if we are not in the middle of FCF 3380 * failover process already. 3381 */ 3382 spin_lock_irq(&phba->hbalock); 3383 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3384 spin_unlock_irq(&phba->hbalock); 3385 /* Update FLOGI FCF failover eligible FCF bmask */ 3386 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index); 3387 break; 3388 } 3389 /* Mark the fast failover process in progress */ 3390 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 3391 spin_unlock_irq(&phba->hbalock); 3392 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3393 "2771 Start FCF fast failover process due to " 3394 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 3395 "\n", acqe_fcoe->event_tag, acqe_fcoe->index); 3396 rc = lpfc_sli4_redisc_fcf_table(phba); 3397 if (rc) { 3398 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3399 LOG_DISCOVERY, 3400 "2772 Issue FCF rediscover mabilbox " 3401 "command failed, fail through to FCF " 3402 "dead event\n"); 3403 spin_lock_irq(&phba->hbalock); 3404 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 3405 spin_unlock_irq(&phba->hbalock); 3406 /* 3407 * Last resort will fail over by treating this 3408 * as a link down to FCF registration. 3409 */ 3410 lpfc_sli4_fcf_dead_failthrough(phba); 3411 } else 3412 /* Handling fast FCF failover to a DEAD FCF event 3413 * is considered equalivant to receiving CVL to all 3414 * vports. 3415 */ 3416 lpfc_sli4_perform_all_vport_cvl(phba); 3417 break; 3418 case LPFC_FCOE_EVENT_TYPE_CVL: 3419 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3420 "2718 Clear Virtual Link Received for VPI 0x%x" 3421 " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag); 3422 vport = lpfc_find_vport_by_vpid(phba, 3423 acqe_fcoe->index - phba->vpi_base); 3424 ndlp = lpfc_sli4_perform_vport_cvl(vport); 3425 if (!ndlp) 3426 break; 3427 active_vlink_present = 0; 3428 3429 vports = lpfc_create_vport_work_array(phba); 3430 if (vports) { 3431 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 3432 i++) { 3433 if ((!(vports[i]->fc_flag & 3434 FC_VPORT_CVL_RCVD)) && 3435 (vports[i]->port_state > LPFC_FDISC)) { 3436 active_vlink_present = 1; 3437 break; 3438 } 3439 } 3440 lpfc_destroy_vport_work_array(phba, vports); 3441 } 3442 3443 if (active_vlink_present) { 3444 /* 3445 * If there are other active VLinks present, 3446 * re-instantiate the Vlink using FDISC. 3447 */ 3448 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3449 shost = lpfc_shost_from_vport(vport); 3450 spin_lock_irq(shost->host_lock); 3451 ndlp->nlp_flag |= NLP_DELAY_TMO; 3452 spin_unlock_irq(shost->host_lock); 3453 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 3454 vport->port_state = LPFC_FDISC; 3455 } else { 3456 /* 3457 * Otherwise, we request port to rediscover 3458 * the entire FCF table for a fast recovery 3459 * from possible case that the current FCF 3460 * is no longer valid if we are not already 3461 * in the FCF failover process. 3462 */ 3463 spin_lock_irq(&phba->hbalock); 3464 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3465 spin_unlock_irq(&phba->hbalock); 3466 break; 3467 } 3468 /* Mark the fast failover process in progress */ 3469 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 3470 spin_unlock_irq(&phba->hbalock); 3471 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3472 LOG_DISCOVERY, 3473 "2773 Start FCF fast failover due " 3474 "to CVL event: evt_tag:x%x\n", 3475 acqe_fcoe->event_tag); 3476 rc = lpfc_sli4_redisc_fcf_table(phba); 3477 if (rc) { 3478 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3479 LOG_DISCOVERY, 3480 "2774 Issue FCF rediscover " 3481 "mabilbox command failed, " 3482 "through to CVL event\n"); 3483 spin_lock_irq(&phba->hbalock); 3484 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 3485 spin_unlock_irq(&phba->hbalock); 3486 /* 3487 * Last resort will be re-try on the 3488 * the current registered FCF entry. 3489 */ 3490 lpfc_retry_pport_discovery(phba); 3491 } 3492 } 3493 break; 3494 default: 3495 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3496 "0288 Unknown FCoE event type 0x%x event tag " 3497 "0x%x\n", event_type, acqe_fcoe->event_tag); 3498 break; 3499 } 3500 } 3501 3502 /** 3503 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 3504 * @phba: pointer to lpfc hba data structure. 3505 * @acqe_link: pointer to the async dcbx completion queue entry. 3506 * 3507 * This routine is to handle the SLI4 asynchronous dcbx event. 3508 **/ 3509 static void 3510 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 3511 struct lpfc_acqe_dcbx *acqe_dcbx) 3512 { 3513 phba->fc_eventTag = acqe_dcbx->event_tag; 3514 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3515 "0290 The SLI4 DCBX asynchronous event is not " 3516 "handled yet\n"); 3517 } 3518 3519 /** 3520 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3521 * @phba: pointer to lpfc hba data structure. 3522 * 3523 * This routine is invoked by the worker thread to process all the pending 3524 * SLI4 asynchronous events. 3525 **/ 3526 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3527 { 3528 struct lpfc_cq_event *cq_event; 3529 3530 /* First, declare the async event has been handled */ 3531 spin_lock_irq(&phba->hbalock); 3532 phba->hba_flag &= ~ASYNC_EVENT; 3533 spin_unlock_irq(&phba->hbalock); 3534 /* Now, handle all the async events */ 3535 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3536 /* Get the first event from the head of the event queue */ 3537 spin_lock_irq(&phba->hbalock); 3538 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3539 cq_event, struct lpfc_cq_event, list); 3540 spin_unlock_irq(&phba->hbalock); 3541 /* Process the asynchronous event */ 3542 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3543 case LPFC_TRAILER_CODE_LINK: 3544 lpfc_sli4_async_link_evt(phba, 3545 &cq_event->cqe.acqe_link); 3546 break; 3547 case LPFC_TRAILER_CODE_FCOE: 3548 lpfc_sli4_async_fcoe_evt(phba, 3549 &cq_event->cqe.acqe_fcoe); 3550 break; 3551 case LPFC_TRAILER_CODE_DCBX: 3552 lpfc_sli4_async_dcbx_evt(phba, 3553 &cq_event->cqe.acqe_dcbx); 3554 break; 3555 default: 3556 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3557 "1804 Invalid asynchrous event code: " 3558 "x%x\n", bf_get(lpfc_trailer_code, 3559 &cq_event->cqe.mcqe_cmpl)); 3560 break; 3561 } 3562 /* Free the completion event processed to the free pool */ 3563 lpfc_sli4_cq_event_release(phba, cq_event); 3564 } 3565 } 3566 3567 /** 3568 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 3569 * @phba: pointer to lpfc hba data structure. 3570 * 3571 * This routine is invoked by the worker thread to process FCF table 3572 * rediscovery pending completion event. 3573 **/ 3574 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 3575 { 3576 int rc; 3577 3578 spin_lock_irq(&phba->hbalock); 3579 /* Clear FCF rediscovery timeout event */ 3580 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 3581 /* Clear driver fast failover FCF record flag */ 3582 phba->fcf.failover_rec.flag = 0; 3583 /* Set state for FCF fast failover */ 3584 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 3585 spin_unlock_irq(&phba->hbalock); 3586 3587 /* Scan FCF table from the first entry to re-discover SAN */ 3588 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3589 "2777 Start FCF table scan after FCF " 3590 "rediscovery quiescent period over\n"); 3591 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 3592 if (rc) 3593 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3594 "2747 Issue FCF scan read FCF mailbox " 3595 "command failed 0x%x\n", rc); 3596 } 3597 3598 /** 3599 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3600 * @phba: pointer to lpfc hba data structure. 3601 * @dev_grp: The HBA PCI-Device group number. 3602 * 3603 * This routine is invoked to set up the per HBA PCI-Device group function 3604 * API jump table entries. 3605 * 3606 * Return: 0 if success, otherwise -ENODEV 3607 **/ 3608 int 3609 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3610 { 3611 int rc; 3612 3613 /* Set up lpfc PCI-device group */ 3614 phba->pci_dev_grp = dev_grp; 3615 3616 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3617 if (dev_grp == LPFC_PCI_DEV_OC) 3618 phba->sli_rev = LPFC_SLI_REV4; 3619 3620 /* Set up device INIT API function jump table */ 3621 rc = lpfc_init_api_table_setup(phba, dev_grp); 3622 if (rc) 3623 return -ENODEV; 3624 /* Set up SCSI API function jump table */ 3625 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3626 if (rc) 3627 return -ENODEV; 3628 /* Set up SLI API function jump table */ 3629 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3630 if (rc) 3631 return -ENODEV; 3632 /* Set up MBOX API function jump table */ 3633 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3634 if (rc) 3635 return -ENODEV; 3636 3637 return 0; 3638 } 3639 3640 /** 3641 * lpfc_log_intr_mode - Log the active interrupt mode 3642 * @phba: pointer to lpfc hba data structure. 3643 * @intr_mode: active interrupt mode adopted. 3644 * 3645 * This routine it invoked to log the currently used active interrupt mode 3646 * to the device. 3647 **/ 3648 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3649 { 3650 switch (intr_mode) { 3651 case 0: 3652 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3653 "0470 Enable INTx interrupt mode.\n"); 3654 break; 3655 case 1: 3656 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3657 "0481 Enabled MSI interrupt mode.\n"); 3658 break; 3659 case 2: 3660 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3661 "0480 Enabled MSI-X interrupt mode.\n"); 3662 break; 3663 default: 3664 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3665 "0482 Illegal interrupt mode.\n"); 3666 break; 3667 } 3668 return; 3669 } 3670 3671 /** 3672 * lpfc_enable_pci_dev - Enable a generic PCI device. 3673 * @phba: pointer to lpfc hba data structure. 3674 * 3675 * This routine is invoked to enable the PCI device that is common to all 3676 * PCI devices. 3677 * 3678 * Return codes 3679 * 0 - successful 3680 * other values - error 3681 **/ 3682 static int 3683 lpfc_enable_pci_dev(struct lpfc_hba *phba) 3684 { 3685 struct pci_dev *pdev; 3686 int bars; 3687 3688 /* Obtain PCI device reference */ 3689 if (!phba->pcidev) 3690 goto out_error; 3691 else 3692 pdev = phba->pcidev; 3693 /* Select PCI BARs */ 3694 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3695 /* Enable PCI device */ 3696 if (pci_enable_device_mem(pdev)) 3697 goto out_error; 3698 /* Request PCI resource for the device */ 3699 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3700 goto out_disable_device; 3701 /* Set up device as PCI master and save state for EEH */ 3702 pci_set_master(pdev); 3703 pci_try_set_mwi(pdev); 3704 pci_save_state(pdev); 3705 3706 return 0; 3707 3708 out_disable_device: 3709 pci_disable_device(pdev); 3710 out_error: 3711 return -ENODEV; 3712 } 3713 3714 /** 3715 * lpfc_disable_pci_dev - Disable a generic PCI device. 3716 * @phba: pointer to lpfc hba data structure. 3717 * 3718 * This routine is invoked to disable the PCI device that is common to all 3719 * PCI devices. 3720 **/ 3721 static void 3722 lpfc_disable_pci_dev(struct lpfc_hba *phba) 3723 { 3724 struct pci_dev *pdev; 3725 int bars; 3726 3727 /* Obtain PCI device reference */ 3728 if (!phba->pcidev) 3729 return; 3730 else 3731 pdev = phba->pcidev; 3732 /* Select PCI BARs */ 3733 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3734 /* Release PCI resource and disable PCI device */ 3735 pci_release_selected_regions(pdev, bars); 3736 pci_disable_device(pdev); 3737 /* Null out PCI private reference to driver */ 3738 pci_set_drvdata(pdev, NULL); 3739 3740 return; 3741 } 3742 3743 /** 3744 * lpfc_reset_hba - Reset a hba 3745 * @phba: pointer to lpfc hba data structure. 3746 * 3747 * This routine is invoked to reset a hba device. It brings the HBA 3748 * offline, performs a board restart, and then brings the board back 3749 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 3750 * on outstanding mailbox commands. 3751 **/ 3752 void 3753 lpfc_reset_hba(struct lpfc_hba *phba) 3754 { 3755 /* If resets are disabled then set error state and return. */ 3756 if (!phba->cfg_enable_hba_reset) { 3757 phba->link_state = LPFC_HBA_ERROR; 3758 return; 3759 } 3760 lpfc_offline_prep(phba); 3761 lpfc_offline(phba); 3762 lpfc_sli_brdrestart(phba); 3763 lpfc_online(phba); 3764 lpfc_unblock_mgmt_io(phba); 3765 } 3766 3767 /** 3768 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 3769 * @phba: pointer to lpfc hba data structure. 3770 * 3771 * This routine is invoked to set up the driver internal resources specific to 3772 * support the SLI-3 HBA device it attached to. 3773 * 3774 * Return codes 3775 * 0 - successful 3776 * other values - error 3777 **/ 3778 static int 3779 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 3780 { 3781 struct lpfc_sli *psli; 3782 3783 /* 3784 * Initialize timers used by driver 3785 */ 3786 3787 /* Heartbeat timer */ 3788 init_timer(&phba->hb_tmofunc); 3789 phba->hb_tmofunc.function = lpfc_hb_timeout; 3790 phba->hb_tmofunc.data = (unsigned long)phba; 3791 3792 psli = &phba->sli; 3793 /* MBOX heartbeat timer */ 3794 init_timer(&psli->mbox_tmo); 3795 psli->mbox_tmo.function = lpfc_mbox_timeout; 3796 psli->mbox_tmo.data = (unsigned long) phba; 3797 /* FCP polling mode timer */ 3798 init_timer(&phba->fcp_poll_timer); 3799 phba->fcp_poll_timer.function = lpfc_poll_timeout; 3800 phba->fcp_poll_timer.data = (unsigned long) phba; 3801 /* Fabric block timer */ 3802 init_timer(&phba->fabric_block_timer); 3803 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3804 phba->fabric_block_timer.data = (unsigned long) phba; 3805 /* EA polling mode timer */ 3806 init_timer(&phba->eratt_poll); 3807 phba->eratt_poll.function = lpfc_poll_eratt; 3808 phba->eratt_poll.data = (unsigned long) phba; 3809 3810 /* Host attention work mask setup */ 3811 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 3812 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 3813 3814 /* Get all the module params for configuring this host */ 3815 lpfc_get_cfgparam(phba); 3816 /* 3817 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3818 * used to create the sg_dma_buf_pool must be dynamically calculated. 3819 * 2 segments are added since the IOCB needs a command and response bde. 3820 */ 3821 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 3822 sizeof(struct fcp_rsp) + 3823 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 3824 3825 if (phba->cfg_enable_bg) { 3826 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 3827 phba->cfg_sg_dma_buf_size += 3828 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 3829 } 3830 3831 /* Also reinitialize the host templates with new values. */ 3832 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3833 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3834 3835 phba->max_vpi = LPFC_MAX_VPI; 3836 /* This will be set to correct value after config_port mbox */ 3837 phba->max_vports = 0; 3838 3839 /* 3840 * Initialize the SLI Layer to run with lpfc HBAs. 3841 */ 3842 lpfc_sli_setup(phba); 3843 lpfc_sli_queue_setup(phba); 3844 3845 /* Allocate device driver memory */ 3846 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 3847 return -ENOMEM; 3848 3849 return 0; 3850 } 3851 3852 /** 3853 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 3854 * @phba: pointer to lpfc hba data structure. 3855 * 3856 * This routine is invoked to unset the driver internal resources set up 3857 * specific for supporting the SLI-3 HBA device it attached to. 3858 **/ 3859 static void 3860 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 3861 { 3862 /* Free device driver memory allocated */ 3863 lpfc_mem_free_all(phba); 3864 3865 return; 3866 } 3867 3868 /** 3869 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 3870 * @phba: pointer to lpfc hba data structure. 3871 * 3872 * This routine is invoked to set up the driver internal resources specific to 3873 * support the SLI-4 HBA device it attached to. 3874 * 3875 * Return codes 3876 * 0 - successful 3877 * other values - error 3878 **/ 3879 static int 3880 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 3881 { 3882 struct lpfc_sli *psli; 3883 LPFC_MBOXQ_t *mboxq; 3884 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 3885 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 3886 struct lpfc_mqe *mqe; 3887 int longs; 3888 3889 /* Before proceed, wait for POST done and device ready */ 3890 rc = lpfc_sli4_post_status_check(phba); 3891 if (rc) 3892 return -ENODEV; 3893 3894 /* 3895 * Initialize timers used by driver 3896 */ 3897 3898 /* Heartbeat timer */ 3899 init_timer(&phba->hb_tmofunc); 3900 phba->hb_tmofunc.function = lpfc_hb_timeout; 3901 phba->hb_tmofunc.data = (unsigned long)phba; 3902 3903 psli = &phba->sli; 3904 /* MBOX heartbeat timer */ 3905 init_timer(&psli->mbox_tmo); 3906 psli->mbox_tmo.function = lpfc_mbox_timeout; 3907 psli->mbox_tmo.data = (unsigned long) phba; 3908 /* Fabric block timer */ 3909 init_timer(&phba->fabric_block_timer); 3910 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3911 phba->fabric_block_timer.data = (unsigned long) phba; 3912 /* EA polling mode timer */ 3913 init_timer(&phba->eratt_poll); 3914 phba->eratt_poll.function = lpfc_poll_eratt; 3915 phba->eratt_poll.data = (unsigned long) phba; 3916 /* FCF rediscover timer */ 3917 init_timer(&phba->fcf.redisc_wait); 3918 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 3919 phba->fcf.redisc_wait.data = (unsigned long)phba; 3920 3921 /* 3922 * We need to do a READ_CONFIG mailbox command here before 3923 * calling lpfc_get_cfgparam. For VFs this will report the 3924 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 3925 * All of the resources allocated 3926 * for this Port are tied to these values. 3927 */ 3928 /* Get all the module params for configuring this host */ 3929 lpfc_get_cfgparam(phba); 3930 phba->max_vpi = LPFC_MAX_VPI; 3931 /* This will be set to correct value after the read_config mbox */ 3932 phba->max_vports = 0; 3933 3934 /* Program the default value of vlan_id and fc_map */ 3935 phba->valid_vlan = 0; 3936 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 3937 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 3938 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 3939 3940 /* 3941 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3942 * used to create the sg_dma_buf_pool must be dynamically calculated. 3943 * 2 segments are added since the IOCB needs a command and response bde. 3944 * To insure that the scsi sgl does not cross a 4k page boundary only 3945 * sgl sizes of must be a power of 2. 3946 */ 3947 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 3948 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge))); 3949 /* Feature Level 1 hardware is limited to 2 pages */ 3950 if ((bf_get(lpfc_sli_intf_featurelevel1, &phba->sli4_hba.sli_intf) == 3951 LPFC_SLI_INTF_FEATURELEVEL1_1)) 3952 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 3953 else 3954 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 3955 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 3956 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 3957 dma_buf_size = dma_buf_size << 1) 3958 ; 3959 if (dma_buf_size == max_buf_size) 3960 phba->cfg_sg_seg_cnt = (dma_buf_size - 3961 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 3962 (2 * sizeof(struct sli4_sge))) / 3963 sizeof(struct sli4_sge); 3964 phba->cfg_sg_dma_buf_size = dma_buf_size; 3965 3966 /* Initialize buffer queue management fields */ 3967 hbq_count = lpfc_sli_hbq_count(); 3968 for (i = 0; i < hbq_count; ++i) 3969 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 3970 INIT_LIST_HEAD(&phba->rb_pend_list); 3971 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 3972 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 3973 3974 /* 3975 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 3976 */ 3977 /* Initialize the Abort scsi buffer list used by driver */ 3978 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 3979 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 3980 /* This abort list used by worker thread */ 3981 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 3982 3983 /* 3984 * Initialize dirver internal slow-path work queues 3985 */ 3986 3987 /* Driver internel slow-path CQ Event pool */ 3988 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 3989 /* Response IOCB work queue list */ 3990 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 3991 /* Asynchronous event CQ Event work queue list */ 3992 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 3993 /* Fast-path XRI aborted CQ Event work queue list */ 3994 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 3995 /* Slow-path XRI aborted CQ Event work queue list */ 3996 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 3997 /* Receive queue CQ Event work queue list */ 3998 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 3999 4000 /* Initialize the driver internal SLI layer lists. */ 4001 lpfc_sli_setup(phba); 4002 lpfc_sli_queue_setup(phba); 4003 4004 /* Allocate device driver memory */ 4005 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4006 if (rc) 4007 return -ENOMEM; 4008 4009 /* Create the bootstrap mailbox command */ 4010 rc = lpfc_create_bootstrap_mbox(phba); 4011 if (unlikely(rc)) 4012 goto out_free_mem; 4013 4014 /* Set up the host's endian order with the device. */ 4015 rc = lpfc_setup_endian_order(phba); 4016 if (unlikely(rc)) 4017 goto out_free_bsmbx; 4018 4019 rc = lpfc_sli4_fw_cfg_check(phba); 4020 if (unlikely(rc)) 4021 goto out_free_bsmbx; 4022 4023 /* Set up the hba's configuration parameters. */ 4024 rc = lpfc_sli4_read_config(phba); 4025 if (unlikely(rc)) 4026 goto out_free_bsmbx; 4027 4028 /* Perform a function reset */ 4029 rc = lpfc_pci_function_reset(phba); 4030 if (unlikely(rc)) 4031 goto out_free_bsmbx; 4032 4033 /* Create all the SLI4 queues */ 4034 rc = lpfc_sli4_queue_create(phba); 4035 if (rc) 4036 goto out_free_bsmbx; 4037 4038 /* Create driver internal CQE event pool */ 4039 rc = lpfc_sli4_cq_event_pool_create(phba); 4040 if (rc) 4041 goto out_destroy_queue; 4042 4043 /* Initialize and populate the iocb list per host */ 4044 rc = lpfc_init_sgl_list(phba); 4045 if (rc) { 4046 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4047 "1400 Failed to initialize sgl list.\n"); 4048 goto out_destroy_cq_event_pool; 4049 } 4050 rc = lpfc_init_active_sgl_array(phba); 4051 if (rc) { 4052 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4053 "1430 Failed to initialize sgl list.\n"); 4054 goto out_free_sgl_list; 4055 } 4056 4057 rc = lpfc_sli4_init_rpi_hdrs(phba); 4058 if (rc) { 4059 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4060 "1432 Failed to initialize rpi headers.\n"); 4061 goto out_free_active_sgl; 4062 } 4063 4064 /* Allocate eligible FCF bmask memory for FCF round robin failover */ 4065 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 4066 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 4067 GFP_KERNEL); 4068 if (!phba->fcf.fcf_rr_bmask) { 4069 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4070 "2759 Failed allocate memory for FCF round " 4071 "robin failover bmask\n"); 4072 goto out_remove_rpi_hdrs; 4073 } 4074 4075 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 4076 phba->cfg_fcp_eq_count), GFP_KERNEL); 4077 if (!phba->sli4_hba.fcp_eq_hdl) { 4078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4079 "2572 Failed allocate memory for fast-path " 4080 "per-EQ handle array\n"); 4081 goto out_free_fcf_rr_bmask; 4082 } 4083 4084 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 4085 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 4086 if (!phba->sli4_hba.msix_entries) { 4087 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4088 "2573 Failed allocate memory for msi-x " 4089 "interrupt vector entries\n"); 4090 goto out_free_fcp_eq_hdl; 4091 } 4092 4093 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4094 GFP_KERNEL); 4095 if (!mboxq) { 4096 rc = -ENOMEM; 4097 goto out_free_fcp_eq_hdl; 4098 } 4099 4100 /* Get the Supported Pages. It is always available. */ 4101 lpfc_supported_pages(mboxq); 4102 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4103 if (unlikely(rc)) { 4104 rc = -EIO; 4105 mempool_free(mboxq, phba->mbox_mem_pool); 4106 goto out_free_fcp_eq_hdl; 4107 } 4108 4109 mqe = &mboxq->u.mqe; 4110 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4111 LPFC_MAX_SUPPORTED_PAGES); 4112 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4113 switch (pn_page[i]) { 4114 case LPFC_SLI4_PARAMETERS: 4115 phba->sli4_hba.pc_sli4_params.supported = 1; 4116 break; 4117 default: 4118 break; 4119 } 4120 } 4121 4122 /* Read the port's SLI4 Parameters capabilities if supported. */ 4123 if (phba->sli4_hba.pc_sli4_params.supported) 4124 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4125 mempool_free(mboxq, phba->mbox_mem_pool); 4126 if (rc) { 4127 rc = -EIO; 4128 goto out_free_fcp_eq_hdl; 4129 } 4130 return rc; 4131 4132 out_free_fcp_eq_hdl: 4133 kfree(phba->sli4_hba.fcp_eq_hdl); 4134 out_free_fcf_rr_bmask: 4135 kfree(phba->fcf.fcf_rr_bmask); 4136 out_remove_rpi_hdrs: 4137 lpfc_sli4_remove_rpi_hdrs(phba); 4138 out_free_active_sgl: 4139 lpfc_free_active_sgl(phba); 4140 out_free_sgl_list: 4141 lpfc_free_sgl_list(phba); 4142 out_destroy_cq_event_pool: 4143 lpfc_sli4_cq_event_pool_destroy(phba); 4144 out_destroy_queue: 4145 lpfc_sli4_queue_destroy(phba); 4146 out_free_bsmbx: 4147 lpfc_destroy_bootstrap_mbox(phba); 4148 out_free_mem: 4149 lpfc_mem_free(phba); 4150 return rc; 4151 } 4152 4153 /** 4154 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 4155 * @phba: pointer to lpfc hba data structure. 4156 * 4157 * This routine is invoked to unset the driver internal resources set up 4158 * specific for supporting the SLI-4 HBA device it attached to. 4159 **/ 4160 static void 4161 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 4162 { 4163 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4164 4165 /* unregister default FCFI from the HBA */ 4166 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi); 4167 4168 /* Free the default FCR table */ 4169 lpfc_sli_remove_dflt_fcf(phba); 4170 4171 /* Free memory allocated for msi-x interrupt vector entries */ 4172 kfree(phba->sli4_hba.msix_entries); 4173 4174 /* Free memory allocated for fast-path work queue handles */ 4175 kfree(phba->sli4_hba.fcp_eq_hdl); 4176 4177 /* Free the allocated rpi headers. */ 4178 lpfc_sli4_remove_rpi_hdrs(phba); 4179 lpfc_sli4_remove_rpis(phba); 4180 4181 /* Free eligible FCF index bmask */ 4182 kfree(phba->fcf.fcf_rr_bmask); 4183 4184 /* Free the ELS sgl list */ 4185 lpfc_free_active_sgl(phba); 4186 lpfc_free_sgl_list(phba); 4187 4188 /* Free the SCSI sgl management array */ 4189 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4190 4191 /* Free the SLI4 queues */ 4192 lpfc_sli4_queue_destroy(phba); 4193 4194 /* Free the completion queue EQ event pool */ 4195 lpfc_sli4_cq_event_release_all(phba); 4196 lpfc_sli4_cq_event_pool_destroy(phba); 4197 4198 /* Reset SLI4 HBA FCoE function */ 4199 lpfc_pci_function_reset(phba); 4200 4201 /* Free the bsmbx region. */ 4202 lpfc_destroy_bootstrap_mbox(phba); 4203 4204 /* Free the SLI Layer memory with SLI4 HBAs */ 4205 lpfc_mem_free_all(phba); 4206 4207 /* Free the current connect table */ 4208 list_for_each_entry_safe(conn_entry, next_conn_entry, 4209 &phba->fcf_conn_rec_list, list) { 4210 list_del_init(&conn_entry->list); 4211 kfree(conn_entry); 4212 } 4213 4214 return; 4215 } 4216 4217 /** 4218 * lpfc_init_api_table_setup - Set up init api fucntion jump table 4219 * @phba: The hba struct for which this call is being executed. 4220 * @dev_grp: The HBA PCI-Device group number. 4221 * 4222 * This routine sets up the device INIT interface API function jump table 4223 * in @phba struct. 4224 * 4225 * Returns: 0 - success, -ENODEV - failure. 4226 **/ 4227 int 4228 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4229 { 4230 phba->lpfc_hba_init_link = lpfc_hba_init_link; 4231 phba->lpfc_hba_down_link = lpfc_hba_down_link; 4232 switch (dev_grp) { 4233 case LPFC_PCI_DEV_LP: 4234 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 4235 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 4236 phba->lpfc_stop_port = lpfc_stop_port_s3; 4237 break; 4238 case LPFC_PCI_DEV_OC: 4239 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 4240 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 4241 phba->lpfc_stop_port = lpfc_stop_port_s4; 4242 break; 4243 default: 4244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4245 "1431 Invalid HBA PCI-device group: 0x%x\n", 4246 dev_grp); 4247 return -ENODEV; 4248 break; 4249 } 4250 return 0; 4251 } 4252 4253 /** 4254 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 4255 * @phba: pointer to lpfc hba data structure. 4256 * 4257 * This routine is invoked to set up the driver internal resources before the 4258 * device specific resource setup to support the HBA device it attached to. 4259 * 4260 * Return codes 4261 * 0 - successful 4262 * other values - error 4263 **/ 4264 static int 4265 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 4266 { 4267 /* 4268 * Driver resources common to all SLI revisions 4269 */ 4270 atomic_set(&phba->fast_event_count, 0); 4271 spin_lock_init(&phba->hbalock); 4272 4273 /* Initialize ndlp management spinlock */ 4274 spin_lock_init(&phba->ndlp_lock); 4275 4276 INIT_LIST_HEAD(&phba->port_list); 4277 INIT_LIST_HEAD(&phba->work_list); 4278 init_waitqueue_head(&phba->wait_4_mlo_m_q); 4279 4280 /* Initialize the wait queue head for the kernel thread */ 4281 init_waitqueue_head(&phba->work_waitq); 4282 4283 /* Initialize the scsi buffer list used by driver for scsi IO */ 4284 spin_lock_init(&phba->scsi_buf_list_lock); 4285 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 4286 4287 /* Initialize the fabric iocb list */ 4288 INIT_LIST_HEAD(&phba->fabric_iocb_list); 4289 4290 /* Initialize list to save ELS buffers */ 4291 INIT_LIST_HEAD(&phba->elsbuf); 4292 4293 /* Initialize FCF connection rec list */ 4294 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 4295 4296 return 0; 4297 } 4298 4299 /** 4300 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 4301 * @phba: pointer to lpfc hba data structure. 4302 * 4303 * This routine is invoked to set up the driver internal resources after the 4304 * device specific resource setup to support the HBA device it attached to. 4305 * 4306 * Return codes 4307 * 0 - successful 4308 * other values - error 4309 **/ 4310 static int 4311 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 4312 { 4313 int error; 4314 4315 /* Startup the kernel thread for this host adapter. */ 4316 phba->worker_thread = kthread_run(lpfc_do_work, phba, 4317 "lpfc_worker_%d", phba->brd_no); 4318 if (IS_ERR(phba->worker_thread)) { 4319 error = PTR_ERR(phba->worker_thread); 4320 return error; 4321 } 4322 4323 return 0; 4324 } 4325 4326 /** 4327 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 4328 * @phba: pointer to lpfc hba data structure. 4329 * 4330 * This routine is invoked to unset the driver internal resources set up after 4331 * the device specific resource setup for supporting the HBA device it 4332 * attached to. 4333 **/ 4334 static void 4335 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 4336 { 4337 /* Stop kernel worker thread */ 4338 kthread_stop(phba->worker_thread); 4339 } 4340 4341 /** 4342 * lpfc_free_iocb_list - Free iocb list. 4343 * @phba: pointer to lpfc hba data structure. 4344 * 4345 * This routine is invoked to free the driver's IOCB list and memory. 4346 **/ 4347 static void 4348 lpfc_free_iocb_list(struct lpfc_hba *phba) 4349 { 4350 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 4351 4352 spin_lock_irq(&phba->hbalock); 4353 list_for_each_entry_safe(iocbq_entry, iocbq_next, 4354 &phba->lpfc_iocb_list, list) { 4355 list_del(&iocbq_entry->list); 4356 kfree(iocbq_entry); 4357 phba->total_iocbq_bufs--; 4358 } 4359 spin_unlock_irq(&phba->hbalock); 4360 4361 return; 4362 } 4363 4364 /** 4365 * lpfc_init_iocb_list - Allocate and initialize iocb list. 4366 * @phba: pointer to lpfc hba data structure. 4367 * 4368 * This routine is invoked to allocate and initizlize the driver's IOCB 4369 * list and set up the IOCB tag array accordingly. 4370 * 4371 * Return codes 4372 * 0 - successful 4373 * other values - error 4374 **/ 4375 static int 4376 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 4377 { 4378 struct lpfc_iocbq *iocbq_entry = NULL; 4379 uint16_t iotag; 4380 int i; 4381 4382 /* Initialize and populate the iocb list per host. */ 4383 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 4384 for (i = 0; i < iocb_count; i++) { 4385 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 4386 if (iocbq_entry == NULL) { 4387 printk(KERN_ERR "%s: only allocated %d iocbs of " 4388 "expected %d count. Unloading driver.\n", 4389 __func__, i, LPFC_IOCB_LIST_CNT); 4390 goto out_free_iocbq; 4391 } 4392 4393 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 4394 if (iotag == 0) { 4395 kfree(iocbq_entry); 4396 printk(KERN_ERR "%s: failed to allocate IOTAG. " 4397 "Unloading driver.\n", __func__); 4398 goto out_free_iocbq; 4399 } 4400 iocbq_entry->sli4_xritag = NO_XRI; 4401 4402 spin_lock_irq(&phba->hbalock); 4403 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 4404 phba->total_iocbq_bufs++; 4405 spin_unlock_irq(&phba->hbalock); 4406 } 4407 4408 return 0; 4409 4410 out_free_iocbq: 4411 lpfc_free_iocb_list(phba); 4412 4413 return -ENOMEM; 4414 } 4415 4416 /** 4417 * lpfc_free_sgl_list - Free sgl list. 4418 * @phba: pointer to lpfc hba data structure. 4419 * 4420 * This routine is invoked to free the driver's sgl list and memory. 4421 **/ 4422 static void 4423 lpfc_free_sgl_list(struct lpfc_hba *phba) 4424 { 4425 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 4426 LIST_HEAD(sglq_list); 4427 int rc = 0; 4428 4429 spin_lock_irq(&phba->hbalock); 4430 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 4431 spin_unlock_irq(&phba->hbalock); 4432 4433 list_for_each_entry_safe(sglq_entry, sglq_next, 4434 &sglq_list, list) { 4435 list_del(&sglq_entry->list); 4436 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 4437 kfree(sglq_entry); 4438 phba->sli4_hba.total_sglq_bufs--; 4439 } 4440 rc = lpfc_sli4_remove_all_sgl_pages(phba); 4441 if (rc) { 4442 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4443 "2005 Unable to deregister pages from HBA: %x\n", rc); 4444 } 4445 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4446 } 4447 4448 /** 4449 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 4450 * @phba: pointer to lpfc hba data structure. 4451 * 4452 * This routine is invoked to allocate the driver's active sgl memory. 4453 * This array will hold the sglq_entry's for active IOs. 4454 **/ 4455 static int 4456 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 4457 { 4458 int size; 4459 size = sizeof(struct lpfc_sglq *); 4460 size *= phba->sli4_hba.max_cfg_param.max_xri; 4461 4462 phba->sli4_hba.lpfc_sglq_active_list = 4463 kzalloc(size, GFP_KERNEL); 4464 if (!phba->sli4_hba.lpfc_sglq_active_list) 4465 return -ENOMEM; 4466 return 0; 4467 } 4468 4469 /** 4470 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 4471 * @phba: pointer to lpfc hba data structure. 4472 * 4473 * This routine is invoked to walk through the array of active sglq entries 4474 * and free all of the resources. 4475 * This is just a place holder for now. 4476 **/ 4477 static void 4478 lpfc_free_active_sgl(struct lpfc_hba *phba) 4479 { 4480 kfree(phba->sli4_hba.lpfc_sglq_active_list); 4481 } 4482 4483 /** 4484 * lpfc_init_sgl_list - Allocate and initialize sgl list. 4485 * @phba: pointer to lpfc hba data structure. 4486 * 4487 * This routine is invoked to allocate and initizlize the driver's sgl 4488 * list and set up the sgl xritag tag array accordingly. 4489 * 4490 * Return codes 4491 * 0 - successful 4492 * other values - error 4493 **/ 4494 static int 4495 lpfc_init_sgl_list(struct lpfc_hba *phba) 4496 { 4497 struct lpfc_sglq *sglq_entry = NULL; 4498 int i; 4499 int els_xri_cnt; 4500 4501 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 4502 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4503 "2400 lpfc_init_sgl_list els %d.\n", 4504 els_xri_cnt); 4505 /* Initialize and populate the sglq list per host/VF. */ 4506 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 4507 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 4508 4509 /* Sanity check on XRI management */ 4510 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 4511 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4512 "2562 No room left for SCSI XRI allocation: " 4513 "max_xri=%d, els_xri=%d\n", 4514 phba->sli4_hba.max_cfg_param.max_xri, 4515 els_xri_cnt); 4516 return -ENOMEM; 4517 } 4518 4519 /* Allocate memory for the ELS XRI management array */ 4520 phba->sli4_hba.lpfc_els_sgl_array = 4521 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 4522 GFP_KERNEL); 4523 4524 if (!phba->sli4_hba.lpfc_els_sgl_array) { 4525 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4526 "2401 Failed to allocate memory for ELS " 4527 "XRI management array of size %d.\n", 4528 els_xri_cnt); 4529 return -ENOMEM; 4530 } 4531 4532 /* Keep the SCSI XRI into the XRI management array */ 4533 phba->sli4_hba.scsi_xri_max = 4534 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 4535 phba->sli4_hba.scsi_xri_cnt = 0; 4536 4537 phba->sli4_hba.lpfc_scsi_psb_array = 4538 kzalloc((sizeof(struct lpfc_scsi_buf *) * 4539 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 4540 4541 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 4542 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4543 "2563 Failed to allocate memory for SCSI " 4544 "XRI management array of size %d.\n", 4545 phba->sli4_hba.scsi_xri_max); 4546 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4547 return -ENOMEM; 4548 } 4549 4550 for (i = 0; i < els_xri_cnt; i++) { 4551 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 4552 if (sglq_entry == NULL) { 4553 printk(KERN_ERR "%s: only allocated %d sgls of " 4554 "expected %d count. Unloading driver.\n", 4555 __func__, i, els_xri_cnt); 4556 goto out_free_mem; 4557 } 4558 4559 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba); 4560 if (sglq_entry->sli4_xritag == NO_XRI) { 4561 kfree(sglq_entry); 4562 printk(KERN_ERR "%s: failed to allocate XRI.\n" 4563 "Unloading driver.\n", __func__); 4564 goto out_free_mem; 4565 } 4566 sglq_entry->buff_type = GEN_BUFF_TYPE; 4567 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 4568 if (sglq_entry->virt == NULL) { 4569 kfree(sglq_entry); 4570 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 4571 "Unloading driver.\n", __func__); 4572 goto out_free_mem; 4573 } 4574 sglq_entry->sgl = sglq_entry->virt; 4575 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 4576 4577 /* The list order is used by later block SGL registraton */ 4578 spin_lock_irq(&phba->hbalock); 4579 sglq_entry->state = SGL_FREED; 4580 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 4581 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 4582 phba->sli4_hba.total_sglq_bufs++; 4583 spin_unlock_irq(&phba->hbalock); 4584 } 4585 return 0; 4586 4587 out_free_mem: 4588 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4589 lpfc_free_sgl_list(phba); 4590 return -ENOMEM; 4591 } 4592 4593 /** 4594 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 4595 * @phba: pointer to lpfc hba data structure. 4596 * 4597 * This routine is invoked to post rpi header templates to the 4598 * HBA consistent with the SLI-4 interface spec. This routine 4599 * posts a PAGE_SIZE memory region to the port to hold up to 4600 * PAGE_SIZE modulo 64 rpi context headers. 4601 * No locks are held here because this is an initialization routine 4602 * called only from probe or lpfc_online when interrupts are not 4603 * enabled and the driver is reinitializing the device. 4604 * 4605 * Return codes 4606 * 0 - successful 4607 * ENOMEM - No availble memory 4608 * EIO - The mailbox failed to complete successfully. 4609 **/ 4610 int 4611 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 4612 { 4613 int rc = 0; 4614 int longs; 4615 uint16_t rpi_count; 4616 struct lpfc_rpi_hdr *rpi_hdr; 4617 4618 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 4619 4620 /* 4621 * Provision an rpi bitmask range for discovery. The total count 4622 * is the difference between max and base + 1. 4623 */ 4624 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base + 4625 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4626 4627 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG; 4628 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long), 4629 GFP_KERNEL); 4630 if (!phba->sli4_hba.rpi_bmask) 4631 return -ENOMEM; 4632 4633 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 4634 if (!rpi_hdr) { 4635 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 4636 "0391 Error during rpi post operation\n"); 4637 lpfc_sli4_remove_rpis(phba); 4638 rc = -ENODEV; 4639 } 4640 4641 return rc; 4642 } 4643 4644 /** 4645 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 4646 * @phba: pointer to lpfc hba data structure. 4647 * 4648 * This routine is invoked to allocate a single 4KB memory region to 4649 * support rpis and stores them in the phba. This single region 4650 * provides support for up to 64 rpis. The region is used globally 4651 * by the device. 4652 * 4653 * Returns: 4654 * A valid rpi hdr on success. 4655 * A NULL pointer on any failure. 4656 **/ 4657 struct lpfc_rpi_hdr * 4658 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 4659 { 4660 uint16_t rpi_limit, curr_rpi_range; 4661 struct lpfc_dmabuf *dmabuf; 4662 struct lpfc_rpi_hdr *rpi_hdr; 4663 4664 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 4665 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4666 4667 spin_lock_irq(&phba->hbalock); 4668 curr_rpi_range = phba->sli4_hba.next_rpi; 4669 spin_unlock_irq(&phba->hbalock); 4670 4671 /* 4672 * The port has a limited number of rpis. The increment here 4673 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 4674 * and to allow the full max_rpi range per port. 4675 */ 4676 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 4677 return NULL; 4678 4679 /* 4680 * First allocate the protocol header region for the port. The 4681 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 4682 */ 4683 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4684 if (!dmabuf) 4685 return NULL; 4686 4687 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4688 LPFC_HDR_TEMPLATE_SIZE, 4689 &dmabuf->phys, 4690 GFP_KERNEL); 4691 if (!dmabuf->virt) { 4692 rpi_hdr = NULL; 4693 goto err_free_dmabuf; 4694 } 4695 4696 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 4697 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 4698 rpi_hdr = NULL; 4699 goto err_free_coherent; 4700 } 4701 4702 /* Save the rpi header data for cleanup later. */ 4703 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 4704 if (!rpi_hdr) 4705 goto err_free_coherent; 4706 4707 rpi_hdr->dmabuf = dmabuf; 4708 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 4709 rpi_hdr->page_count = 1; 4710 spin_lock_irq(&phba->hbalock); 4711 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi; 4712 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 4713 4714 /* 4715 * The next_rpi stores the next module-64 rpi value to post 4716 * in any subsequent rpi memory region postings. 4717 */ 4718 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT; 4719 spin_unlock_irq(&phba->hbalock); 4720 return rpi_hdr; 4721 4722 err_free_coherent: 4723 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 4724 dmabuf->virt, dmabuf->phys); 4725 err_free_dmabuf: 4726 kfree(dmabuf); 4727 return NULL; 4728 } 4729 4730 /** 4731 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 4732 * @phba: pointer to lpfc hba data structure. 4733 * 4734 * This routine is invoked to remove all memory resources allocated 4735 * to support rpis. This routine presumes the caller has released all 4736 * rpis consumed by fabric or port logins and is prepared to have 4737 * the header pages removed. 4738 **/ 4739 void 4740 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 4741 { 4742 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 4743 4744 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 4745 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 4746 list_del(&rpi_hdr->list); 4747 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 4748 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 4749 kfree(rpi_hdr->dmabuf); 4750 kfree(rpi_hdr); 4751 } 4752 4753 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4754 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask)); 4755 } 4756 4757 /** 4758 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 4759 * @pdev: pointer to pci device data structure. 4760 * 4761 * This routine is invoked to allocate the driver hba data structure for an 4762 * HBA device. If the allocation is successful, the phba reference to the 4763 * PCI device data structure is set. 4764 * 4765 * Return codes 4766 * pointer to @phba - successful 4767 * NULL - error 4768 **/ 4769 static struct lpfc_hba * 4770 lpfc_hba_alloc(struct pci_dev *pdev) 4771 { 4772 struct lpfc_hba *phba; 4773 4774 /* Allocate memory for HBA structure */ 4775 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 4776 if (!phba) { 4777 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 4778 return NULL; 4779 } 4780 4781 /* Set reference to PCI device in HBA structure */ 4782 phba->pcidev = pdev; 4783 4784 /* Assign an unused board number */ 4785 phba->brd_no = lpfc_get_instance(); 4786 if (phba->brd_no < 0) { 4787 kfree(phba); 4788 return NULL; 4789 } 4790 4791 spin_lock_init(&phba->ct_ev_lock); 4792 INIT_LIST_HEAD(&phba->ct_ev_waiters); 4793 4794 return phba; 4795 } 4796 4797 /** 4798 * lpfc_hba_free - Free driver hba data structure with a device. 4799 * @phba: pointer to lpfc hba data structure. 4800 * 4801 * This routine is invoked to free the driver hba data structure with an 4802 * HBA device. 4803 **/ 4804 static void 4805 lpfc_hba_free(struct lpfc_hba *phba) 4806 { 4807 /* Release the driver assigned board number */ 4808 idr_remove(&lpfc_hba_index, phba->brd_no); 4809 4810 kfree(phba); 4811 return; 4812 } 4813 4814 /** 4815 * lpfc_create_shost - Create hba physical port with associated scsi host. 4816 * @phba: pointer to lpfc hba data structure. 4817 * 4818 * This routine is invoked to create HBA physical port and associate a SCSI 4819 * host with it. 4820 * 4821 * Return codes 4822 * 0 - successful 4823 * other values - error 4824 **/ 4825 static int 4826 lpfc_create_shost(struct lpfc_hba *phba) 4827 { 4828 struct lpfc_vport *vport; 4829 struct Scsi_Host *shost; 4830 4831 /* Initialize HBA FC structure */ 4832 phba->fc_edtov = FF_DEF_EDTOV; 4833 phba->fc_ratov = FF_DEF_RATOV; 4834 phba->fc_altov = FF_DEF_ALTOV; 4835 phba->fc_arbtov = FF_DEF_ARBTOV; 4836 4837 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 4838 if (!vport) 4839 return -ENODEV; 4840 4841 shost = lpfc_shost_from_vport(vport); 4842 phba->pport = vport; 4843 lpfc_debugfs_initialize(vport); 4844 /* Put reference to SCSI host to driver's device private data */ 4845 pci_set_drvdata(phba->pcidev, shost); 4846 4847 return 0; 4848 } 4849 4850 /** 4851 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 4852 * @phba: pointer to lpfc hba data structure. 4853 * 4854 * This routine is invoked to destroy HBA physical port and the associated 4855 * SCSI host. 4856 **/ 4857 static void 4858 lpfc_destroy_shost(struct lpfc_hba *phba) 4859 { 4860 struct lpfc_vport *vport = phba->pport; 4861 4862 /* Destroy physical port that associated with the SCSI host */ 4863 destroy_port(vport); 4864 4865 return; 4866 } 4867 4868 /** 4869 * lpfc_setup_bg - Setup Block guard structures and debug areas. 4870 * @phba: pointer to lpfc hba data structure. 4871 * @shost: the shost to be used to detect Block guard settings. 4872 * 4873 * This routine sets up the local Block guard protocol settings for @shost. 4874 * This routine also allocates memory for debugging bg buffers. 4875 **/ 4876 static void 4877 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 4878 { 4879 int pagecnt = 10; 4880 if (lpfc_prot_mask && lpfc_prot_guard) { 4881 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4882 "1478 Registering BlockGuard with the " 4883 "SCSI layer\n"); 4884 scsi_host_set_prot(shost, lpfc_prot_mask); 4885 scsi_host_set_guard(shost, lpfc_prot_guard); 4886 } 4887 if (!_dump_buf_data) { 4888 while (pagecnt) { 4889 spin_lock_init(&_dump_buf_lock); 4890 _dump_buf_data = 4891 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4892 if (_dump_buf_data) { 4893 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4894 "9043 BLKGRD: allocated %d pages for " 4895 "_dump_buf_data at 0x%p\n", 4896 (1 << pagecnt), _dump_buf_data); 4897 _dump_buf_data_order = pagecnt; 4898 memset(_dump_buf_data, 0, 4899 ((1 << PAGE_SHIFT) << pagecnt)); 4900 break; 4901 } else 4902 --pagecnt; 4903 } 4904 if (!_dump_buf_data_order) 4905 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4906 "9044 BLKGRD: ERROR unable to allocate " 4907 "memory for hexdump\n"); 4908 } else 4909 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4910 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 4911 "\n", _dump_buf_data); 4912 if (!_dump_buf_dif) { 4913 while (pagecnt) { 4914 _dump_buf_dif = 4915 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4916 if (_dump_buf_dif) { 4917 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4918 "9046 BLKGRD: allocated %d pages for " 4919 "_dump_buf_dif at 0x%p\n", 4920 (1 << pagecnt), _dump_buf_dif); 4921 _dump_buf_dif_order = pagecnt; 4922 memset(_dump_buf_dif, 0, 4923 ((1 << PAGE_SHIFT) << pagecnt)); 4924 break; 4925 } else 4926 --pagecnt; 4927 } 4928 if (!_dump_buf_dif_order) 4929 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4930 "9047 BLKGRD: ERROR unable to allocate " 4931 "memory for hexdump\n"); 4932 } else 4933 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4934 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 4935 _dump_buf_dif); 4936 } 4937 4938 /** 4939 * lpfc_post_init_setup - Perform necessary device post initialization setup. 4940 * @phba: pointer to lpfc hba data structure. 4941 * 4942 * This routine is invoked to perform all the necessary post initialization 4943 * setup for the device. 4944 **/ 4945 static void 4946 lpfc_post_init_setup(struct lpfc_hba *phba) 4947 { 4948 struct Scsi_Host *shost; 4949 struct lpfc_adapter_event_header adapter_event; 4950 4951 /* Get the default values for Model Name and Description */ 4952 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 4953 4954 /* 4955 * hba setup may have changed the hba_queue_depth so we need to 4956 * adjust the value of can_queue. 4957 */ 4958 shost = pci_get_drvdata(phba->pcidev); 4959 shost->can_queue = phba->cfg_hba_queue_depth - 10; 4960 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 4961 lpfc_setup_bg(phba, shost); 4962 4963 lpfc_host_attrib_init(shost); 4964 4965 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 4966 spin_lock_irq(shost->host_lock); 4967 lpfc_poll_start_timer(phba); 4968 spin_unlock_irq(shost->host_lock); 4969 } 4970 4971 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4972 "0428 Perform SCSI scan\n"); 4973 /* Send board arrival event to upper layer */ 4974 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 4975 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 4976 fc_host_post_vendor_event(shost, fc_get_event_number(), 4977 sizeof(adapter_event), 4978 (char *) &adapter_event, 4979 LPFC_NL_VENDOR_ID); 4980 return; 4981 } 4982 4983 /** 4984 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 4985 * @phba: pointer to lpfc hba data structure. 4986 * 4987 * This routine is invoked to set up the PCI device memory space for device 4988 * with SLI-3 interface spec. 4989 * 4990 * Return codes 4991 * 0 - successful 4992 * other values - error 4993 **/ 4994 static int 4995 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 4996 { 4997 struct pci_dev *pdev; 4998 unsigned long bar0map_len, bar2map_len; 4999 int i, hbq_count; 5000 void *ptr; 5001 int error = -ENODEV; 5002 5003 /* Obtain PCI device reference */ 5004 if (!phba->pcidev) 5005 return error; 5006 else 5007 pdev = phba->pcidev; 5008 5009 /* Set the device DMA mask size */ 5010 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5011 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5012 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5013 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5014 return error; 5015 } 5016 } 5017 5018 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5019 * required by each mapping. 5020 */ 5021 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5022 bar0map_len = pci_resource_len(pdev, 0); 5023 5024 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5025 bar2map_len = pci_resource_len(pdev, 2); 5026 5027 /* Map HBA SLIM to a kernel virtual address. */ 5028 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5029 if (!phba->slim_memmap_p) { 5030 dev_printk(KERN_ERR, &pdev->dev, 5031 "ioremap failed for SLIM memory.\n"); 5032 goto out; 5033 } 5034 5035 /* Map HBA Control Registers to a kernel virtual address. */ 5036 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5037 if (!phba->ctrl_regs_memmap_p) { 5038 dev_printk(KERN_ERR, &pdev->dev, 5039 "ioremap failed for HBA control registers.\n"); 5040 goto out_iounmap_slim; 5041 } 5042 5043 /* Allocate memory for SLI-2 structures */ 5044 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5045 SLI2_SLIM_SIZE, 5046 &phba->slim2p.phys, 5047 GFP_KERNEL); 5048 if (!phba->slim2p.virt) 5049 goto out_iounmap; 5050 5051 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5052 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5053 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5054 phba->IOCBs = (phba->slim2p.virt + 5055 offsetof(struct lpfc_sli2_slim, IOCBs)); 5056 5057 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5058 lpfc_sli_hbq_size(), 5059 &phba->hbqslimp.phys, 5060 GFP_KERNEL); 5061 if (!phba->hbqslimp.virt) 5062 goto out_free_slim; 5063 5064 hbq_count = lpfc_sli_hbq_count(); 5065 ptr = phba->hbqslimp.virt; 5066 for (i = 0; i < hbq_count; ++i) { 5067 phba->hbqs[i].hbq_virt = ptr; 5068 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5069 ptr += (lpfc_hbq_defs[i]->entry_count * 5070 sizeof(struct lpfc_hbq_entry)); 5071 } 5072 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5073 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5074 5075 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5076 5077 INIT_LIST_HEAD(&phba->rb_pend_list); 5078 5079 phba->MBslimaddr = phba->slim_memmap_p; 5080 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 5081 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 5082 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 5083 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 5084 5085 return 0; 5086 5087 out_free_slim: 5088 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5089 phba->slim2p.virt, phba->slim2p.phys); 5090 out_iounmap: 5091 iounmap(phba->ctrl_regs_memmap_p); 5092 out_iounmap_slim: 5093 iounmap(phba->slim_memmap_p); 5094 out: 5095 return error; 5096 } 5097 5098 /** 5099 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 5100 * @phba: pointer to lpfc hba data structure. 5101 * 5102 * This routine is invoked to unset the PCI device memory space for device 5103 * with SLI-3 interface spec. 5104 **/ 5105 static void 5106 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 5107 { 5108 struct pci_dev *pdev; 5109 5110 /* Obtain PCI device reference */ 5111 if (!phba->pcidev) 5112 return; 5113 else 5114 pdev = phba->pcidev; 5115 5116 /* Free coherent DMA memory allocated */ 5117 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 5118 phba->hbqslimp.virt, phba->hbqslimp.phys); 5119 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5120 phba->slim2p.virt, phba->slim2p.phys); 5121 5122 /* I/O memory unmap */ 5123 iounmap(phba->ctrl_regs_memmap_p); 5124 iounmap(phba->slim_memmap_p); 5125 5126 return; 5127 } 5128 5129 /** 5130 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 5131 * @phba: pointer to lpfc hba data structure. 5132 * 5133 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 5134 * done and check status. 5135 * 5136 * Return 0 if successful, otherwise -ENODEV. 5137 **/ 5138 int 5139 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 5140 { 5141 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg; 5142 int i, port_error = -ENODEV; 5143 5144 if (!phba->sli4_hba.STAregaddr) 5145 return -ENODEV; 5146 5147 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 5148 for (i = 0; i < 3000; i++) { 5149 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr); 5150 /* Encounter fatal POST error, break out */ 5151 if (bf_get(lpfc_hst_state_perr, &sta_reg)) { 5152 port_error = -ENODEV; 5153 break; 5154 } 5155 if (LPFC_POST_STAGE_ARMFW_READY == 5156 bf_get(lpfc_hst_state_port_status, &sta_reg)) { 5157 port_error = 0; 5158 break; 5159 } 5160 msleep(10); 5161 } 5162 5163 if (port_error) 5164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5165 "1408 Failure HBA POST Status: sta_reg=0x%x, " 5166 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, " 5167 "dl=x%x, pstatus=x%x\n", sta_reg.word0, 5168 bf_get(lpfc_hst_state_perr, &sta_reg), 5169 bf_get(lpfc_hst_state_sfi, &sta_reg), 5170 bf_get(lpfc_hst_state_nip, &sta_reg), 5171 bf_get(lpfc_hst_state_ipc, &sta_reg), 5172 bf_get(lpfc_hst_state_xrom, &sta_reg), 5173 bf_get(lpfc_hst_state_dl, &sta_reg), 5174 bf_get(lpfc_hst_state_port_status, &sta_reg)); 5175 5176 /* Log device information */ 5177 phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr); 5178 if (bf_get(lpfc_sli_intf_valid, 5179 &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) { 5180 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5181 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, " 5182 "FeatureL1=0x%x, FeatureL2=0x%x\n", 5183 bf_get(lpfc_sli_intf_sli_family, 5184 &phba->sli4_hba.sli_intf), 5185 bf_get(lpfc_sli_intf_slirev, 5186 &phba->sli4_hba.sli_intf), 5187 bf_get(lpfc_sli_intf_featurelevel1, 5188 &phba->sli4_hba.sli_intf), 5189 bf_get(lpfc_sli_intf_featurelevel2, 5190 &phba->sli4_hba.sli_intf)); 5191 } 5192 phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr); 5193 phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr); 5194 /* With uncoverable error, log the error message and return error */ 5195 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr); 5196 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr); 5197 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 5198 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 5199 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5200 "1422 HBA Unrecoverable error: " 5201 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " 5202 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n", 5203 uerrlo_reg.word0, uerrhi_reg.word0, 5204 phba->sli4_hba.ue_mask_lo, 5205 phba->sli4_hba.ue_mask_hi); 5206 return -ENODEV; 5207 } 5208 5209 return port_error; 5210 } 5211 5212 /** 5213 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 5214 * @phba: pointer to lpfc hba data structure. 5215 * 5216 * This routine is invoked to set up SLI4 BAR0 PCI config space register 5217 * memory map. 5218 **/ 5219 static void 5220 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba) 5221 { 5222 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 5223 LPFC_UERR_STATUS_LO; 5224 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 5225 LPFC_UERR_STATUS_HI; 5226 phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 5227 LPFC_UE_MASK_LO; 5228 phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 5229 LPFC_UE_MASK_HI; 5230 phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p + 5231 LPFC_SLI_INTF; 5232 } 5233 5234 /** 5235 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 5236 * @phba: pointer to lpfc hba data structure. 5237 * 5238 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 5239 * memory map. 5240 **/ 5241 static void 5242 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 5243 { 5244 5245 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5246 LPFC_HST_STATE; 5247 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5248 LPFC_HST_ISR0; 5249 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5250 LPFC_HST_IMR0; 5251 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5252 LPFC_HST_ISCR0; 5253 return; 5254 } 5255 5256 /** 5257 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 5258 * @phba: pointer to lpfc hba data structure. 5259 * @vf: virtual function number 5260 * 5261 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 5262 * based on the given viftual function number, @vf. 5263 * 5264 * Return 0 if successful, otherwise -ENODEV. 5265 **/ 5266 static int 5267 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 5268 { 5269 if (vf > LPFC_VIR_FUNC_MAX) 5270 return -ENODEV; 5271 5272 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5273 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 5274 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5275 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 5276 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5277 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 5278 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5279 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 5280 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5281 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 5282 return 0; 5283 } 5284 5285 /** 5286 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 5287 * @phba: pointer to lpfc hba data structure. 5288 * 5289 * This routine is invoked to create the bootstrap mailbox 5290 * region consistent with the SLI-4 interface spec. This 5291 * routine allocates all memory necessary to communicate 5292 * mailbox commands to the port and sets up all alignment 5293 * needs. No locks are expected to be held when calling 5294 * this routine. 5295 * 5296 * Return codes 5297 * 0 - successful 5298 * ENOMEM - could not allocated memory. 5299 **/ 5300 static int 5301 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 5302 { 5303 uint32_t bmbx_size; 5304 struct lpfc_dmabuf *dmabuf; 5305 struct dma_address *dma_address; 5306 uint32_t pa_addr; 5307 uint64_t phys_addr; 5308 5309 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5310 if (!dmabuf) 5311 return -ENOMEM; 5312 5313 /* 5314 * The bootstrap mailbox region is comprised of 2 parts 5315 * plus an alignment restriction of 16 bytes. 5316 */ 5317 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 5318 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5319 bmbx_size, 5320 &dmabuf->phys, 5321 GFP_KERNEL); 5322 if (!dmabuf->virt) { 5323 kfree(dmabuf); 5324 return -ENOMEM; 5325 } 5326 memset(dmabuf->virt, 0, bmbx_size); 5327 5328 /* 5329 * Initialize the bootstrap mailbox pointers now so that the register 5330 * operations are simple later. The mailbox dma address is required 5331 * to be 16-byte aligned. Also align the virtual memory as each 5332 * maibox is copied into the bmbx mailbox region before issuing the 5333 * command to the port. 5334 */ 5335 phba->sli4_hba.bmbx.dmabuf = dmabuf; 5336 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 5337 5338 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 5339 LPFC_ALIGN_16_BYTE); 5340 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 5341 LPFC_ALIGN_16_BYTE); 5342 5343 /* 5344 * Set the high and low physical addresses now. The SLI4 alignment 5345 * requirement is 16 bytes and the mailbox is posted to the port 5346 * as two 30-bit addresses. The other data is a bit marking whether 5347 * the 30-bit address is the high or low address. 5348 * Upcast bmbx aphys to 64bits so shift instruction compiles 5349 * clean on 32 bit machines. 5350 */ 5351 dma_address = &phba->sli4_hba.bmbx.dma_address; 5352 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 5353 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 5354 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 5355 LPFC_BMBX_BIT1_ADDR_HI); 5356 5357 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 5358 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 5359 LPFC_BMBX_BIT1_ADDR_LO); 5360 return 0; 5361 } 5362 5363 /** 5364 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 5365 * @phba: pointer to lpfc hba data structure. 5366 * 5367 * This routine is invoked to teardown the bootstrap mailbox 5368 * region and release all host resources. This routine requires 5369 * the caller to ensure all mailbox commands recovered, no 5370 * additional mailbox comands are sent, and interrupts are disabled 5371 * before calling this routine. 5372 * 5373 **/ 5374 static void 5375 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 5376 { 5377 dma_free_coherent(&phba->pcidev->dev, 5378 phba->sli4_hba.bmbx.bmbx_size, 5379 phba->sli4_hba.bmbx.dmabuf->virt, 5380 phba->sli4_hba.bmbx.dmabuf->phys); 5381 5382 kfree(phba->sli4_hba.bmbx.dmabuf); 5383 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 5384 } 5385 5386 /** 5387 * lpfc_sli4_read_config - Get the config parameters. 5388 * @phba: pointer to lpfc hba data structure. 5389 * 5390 * This routine is invoked to read the configuration parameters from the HBA. 5391 * The configuration parameters are used to set the base and maximum values 5392 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 5393 * allocation for the port. 5394 * 5395 * Return codes 5396 * 0 - successful 5397 * ENOMEM - No availble memory 5398 * EIO - The mailbox failed to complete successfully. 5399 **/ 5400 static int 5401 lpfc_sli4_read_config(struct lpfc_hba *phba) 5402 { 5403 LPFC_MBOXQ_t *pmb; 5404 struct lpfc_mbx_read_config *rd_config; 5405 uint32_t rc = 0; 5406 5407 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5408 if (!pmb) { 5409 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5410 "2011 Unable to allocate memory for issuing " 5411 "SLI_CONFIG_SPECIAL mailbox command\n"); 5412 return -ENOMEM; 5413 } 5414 5415 lpfc_read_config(phba, pmb); 5416 5417 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 5418 if (rc != MBX_SUCCESS) { 5419 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5420 "2012 Mailbox failed , mbxCmd x%x " 5421 "READ_CONFIG, mbxStatus x%x\n", 5422 bf_get(lpfc_mqe_command, &pmb->u.mqe), 5423 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 5424 rc = -EIO; 5425 } else { 5426 rd_config = &pmb->u.mqe.un.rd_config; 5427 phba->sli4_hba.max_cfg_param.max_xri = 5428 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 5429 phba->sli4_hba.max_cfg_param.xri_base = 5430 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 5431 phba->sli4_hba.max_cfg_param.max_vpi = 5432 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 5433 phba->sli4_hba.max_cfg_param.vpi_base = 5434 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 5435 phba->sli4_hba.max_cfg_param.max_rpi = 5436 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 5437 phba->sli4_hba.max_cfg_param.rpi_base = 5438 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 5439 phba->sli4_hba.max_cfg_param.max_vfi = 5440 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 5441 phba->sli4_hba.max_cfg_param.vfi_base = 5442 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 5443 phba->sli4_hba.max_cfg_param.max_fcfi = 5444 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 5445 phba->sli4_hba.max_cfg_param.fcfi_base = 5446 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config); 5447 phba->sli4_hba.max_cfg_param.max_eq = 5448 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 5449 phba->sli4_hba.max_cfg_param.max_rq = 5450 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 5451 phba->sli4_hba.max_cfg_param.max_wq = 5452 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 5453 phba->sli4_hba.max_cfg_param.max_cq = 5454 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 5455 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 5456 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 5457 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 5458 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 5459 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 5460 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 5461 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 5462 phba->max_vports = phba->max_vpi; 5463 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5464 "2003 cfg params XRI(B:%d M:%d), " 5465 "VPI(B:%d M:%d) " 5466 "VFI(B:%d M:%d) " 5467 "RPI(B:%d M:%d) " 5468 "FCFI(B:%d M:%d)\n", 5469 phba->sli4_hba.max_cfg_param.xri_base, 5470 phba->sli4_hba.max_cfg_param.max_xri, 5471 phba->sli4_hba.max_cfg_param.vpi_base, 5472 phba->sli4_hba.max_cfg_param.max_vpi, 5473 phba->sli4_hba.max_cfg_param.vfi_base, 5474 phba->sli4_hba.max_cfg_param.max_vfi, 5475 phba->sli4_hba.max_cfg_param.rpi_base, 5476 phba->sli4_hba.max_cfg_param.max_rpi, 5477 phba->sli4_hba.max_cfg_param.fcfi_base, 5478 phba->sli4_hba.max_cfg_param.max_fcfi); 5479 } 5480 mempool_free(pmb, phba->mbox_mem_pool); 5481 5482 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 5483 if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri)) 5484 phba->cfg_hba_queue_depth = 5485 phba->sli4_hba.max_cfg_param.max_xri; 5486 return rc; 5487 } 5488 5489 /** 5490 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order. 5491 * @phba: pointer to lpfc hba data structure. 5492 * 5493 * This routine is invoked to setup the host-side endian order to the 5494 * HBA consistent with the SLI-4 interface spec. 5495 * 5496 * Return codes 5497 * 0 - successful 5498 * ENOMEM - No availble memory 5499 * EIO - The mailbox failed to complete successfully. 5500 **/ 5501 static int 5502 lpfc_setup_endian_order(struct lpfc_hba *phba) 5503 { 5504 LPFC_MBOXQ_t *mboxq; 5505 uint32_t rc = 0; 5506 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 5507 HOST_ENDIAN_HIGH_WORD1}; 5508 5509 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5510 if (!mboxq) { 5511 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5512 "0492 Unable to allocate memory for issuing " 5513 "SLI_CONFIG_SPECIAL mailbox command\n"); 5514 return -ENOMEM; 5515 } 5516 5517 /* 5518 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two 5519 * words to contain special data values and no other data. 5520 */ 5521 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 5522 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 5523 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5524 if (rc != MBX_SUCCESS) { 5525 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5526 "0493 SLI_CONFIG_SPECIAL mailbox failed with " 5527 "status x%x\n", 5528 rc); 5529 rc = -EIO; 5530 } 5531 5532 mempool_free(mboxq, phba->mbox_mem_pool); 5533 return rc; 5534 } 5535 5536 /** 5537 * lpfc_sli4_queue_create - Create all the SLI4 queues 5538 * @phba: pointer to lpfc hba data structure. 5539 * 5540 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 5541 * operation. For each SLI4 queue type, the parameters such as queue entry 5542 * count (queue depth) shall be taken from the module parameter. For now, 5543 * we just use some constant number as place holder. 5544 * 5545 * Return codes 5546 * 0 - successful 5547 * ENOMEM - No availble memory 5548 * EIO - The mailbox failed to complete successfully. 5549 **/ 5550 static int 5551 lpfc_sli4_queue_create(struct lpfc_hba *phba) 5552 { 5553 struct lpfc_queue *qdesc; 5554 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5555 int cfg_fcp_wq_count; 5556 int cfg_fcp_eq_count; 5557 5558 /* 5559 * Sanity check for confiugred queue parameters against the run-time 5560 * device parameters 5561 */ 5562 5563 /* Sanity check on FCP fast-path WQ parameters */ 5564 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 5565 if (cfg_fcp_wq_count > 5566 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 5567 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 5568 LPFC_SP_WQN_DEF; 5569 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 5570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5571 "2581 Not enough WQs (%d) from " 5572 "the pci function for supporting " 5573 "FCP WQs (%d)\n", 5574 phba->sli4_hba.max_cfg_param.max_wq, 5575 phba->cfg_fcp_wq_count); 5576 goto out_error; 5577 } 5578 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5579 "2582 Not enough WQs (%d) from the pci " 5580 "function for supporting the requested " 5581 "FCP WQs (%d), the actual FCP WQs can " 5582 "be supported: %d\n", 5583 phba->sli4_hba.max_cfg_param.max_wq, 5584 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 5585 } 5586 /* The actual number of FCP work queues adopted */ 5587 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 5588 5589 /* Sanity check on FCP fast-path EQ parameters */ 5590 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 5591 if (cfg_fcp_eq_count > 5592 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 5593 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 5594 LPFC_SP_EQN_DEF; 5595 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 5596 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5597 "2574 Not enough EQs (%d) from the " 5598 "pci function for supporting FCP " 5599 "EQs (%d)\n", 5600 phba->sli4_hba.max_cfg_param.max_eq, 5601 phba->cfg_fcp_eq_count); 5602 goto out_error; 5603 } 5604 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5605 "2575 Not enough EQs (%d) from the pci " 5606 "function for supporting the requested " 5607 "FCP EQs (%d), the actual FCP EQs can " 5608 "be supported: %d\n", 5609 phba->sli4_hba.max_cfg_param.max_eq, 5610 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 5611 } 5612 /* It does not make sense to have more EQs than WQs */ 5613 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 5614 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5615 "2593 The FCP EQ count(%d) cannot be greater " 5616 "than the FCP WQ count(%d), limiting the " 5617 "FCP EQ count to %d\n", cfg_fcp_eq_count, 5618 phba->cfg_fcp_wq_count, 5619 phba->cfg_fcp_wq_count); 5620 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 5621 } 5622 /* The actual number of FCP event queues adopted */ 5623 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 5624 /* The overall number of event queues used */ 5625 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 5626 5627 /* 5628 * Create Event Queues (EQs) 5629 */ 5630 5631 /* Get EQ depth from module parameter, fake the default for now */ 5632 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 5633 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 5634 5635 /* Create slow path event queue */ 5636 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5637 phba->sli4_hba.eq_ecount); 5638 if (!qdesc) { 5639 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5640 "0496 Failed allocate slow-path EQ\n"); 5641 goto out_error; 5642 } 5643 phba->sli4_hba.sp_eq = qdesc; 5644 5645 /* Create fast-path FCP Event Queue(s) */ 5646 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 5647 phba->cfg_fcp_eq_count), GFP_KERNEL); 5648 if (!phba->sli4_hba.fp_eq) { 5649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5650 "2576 Failed allocate memory for fast-path " 5651 "EQ record array\n"); 5652 goto out_free_sp_eq; 5653 } 5654 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5655 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5656 phba->sli4_hba.eq_ecount); 5657 if (!qdesc) { 5658 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5659 "0497 Failed allocate fast-path EQ\n"); 5660 goto out_free_fp_eq; 5661 } 5662 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 5663 } 5664 5665 /* 5666 * Create Complete Queues (CQs) 5667 */ 5668 5669 /* Get CQ depth from module parameter, fake the default for now */ 5670 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 5671 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 5672 5673 /* Create slow-path Mailbox Command Complete Queue */ 5674 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5675 phba->sli4_hba.cq_ecount); 5676 if (!qdesc) { 5677 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5678 "0500 Failed allocate slow-path mailbox CQ\n"); 5679 goto out_free_fp_eq; 5680 } 5681 phba->sli4_hba.mbx_cq = qdesc; 5682 5683 /* Create slow-path ELS Complete Queue */ 5684 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5685 phba->sli4_hba.cq_ecount); 5686 if (!qdesc) { 5687 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5688 "0501 Failed allocate slow-path ELS CQ\n"); 5689 goto out_free_mbx_cq; 5690 } 5691 phba->sli4_hba.els_cq = qdesc; 5692 5693 5694 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ 5695 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 5696 phba->cfg_fcp_eq_count), GFP_KERNEL); 5697 if (!phba->sli4_hba.fcp_cq) { 5698 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5699 "2577 Failed allocate memory for fast-path " 5700 "CQ record array\n"); 5701 goto out_free_els_cq; 5702 } 5703 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5704 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5705 phba->sli4_hba.cq_ecount); 5706 if (!qdesc) { 5707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5708 "0499 Failed allocate fast-path FCP " 5709 "CQ (%d)\n", fcp_cqidx); 5710 goto out_free_fcp_cq; 5711 } 5712 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 5713 } 5714 5715 /* Create Mailbox Command Queue */ 5716 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 5717 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 5718 5719 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 5720 phba->sli4_hba.mq_ecount); 5721 if (!qdesc) { 5722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5723 "0505 Failed allocate slow-path MQ\n"); 5724 goto out_free_fcp_cq; 5725 } 5726 phba->sli4_hba.mbx_wq = qdesc; 5727 5728 /* 5729 * Create all the Work Queues (WQs) 5730 */ 5731 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 5732 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 5733 5734 /* Create slow-path ELS Work Queue */ 5735 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5736 phba->sli4_hba.wq_ecount); 5737 if (!qdesc) { 5738 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5739 "0504 Failed allocate slow-path ELS WQ\n"); 5740 goto out_free_mbx_wq; 5741 } 5742 phba->sli4_hba.els_wq = qdesc; 5743 5744 /* Create fast-path FCP Work Queue(s) */ 5745 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 5746 phba->cfg_fcp_wq_count), GFP_KERNEL); 5747 if (!phba->sli4_hba.fcp_wq) { 5748 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5749 "2578 Failed allocate memory for fast-path " 5750 "WQ record array\n"); 5751 goto out_free_els_wq; 5752 } 5753 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5754 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5755 phba->sli4_hba.wq_ecount); 5756 if (!qdesc) { 5757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5758 "0503 Failed allocate fast-path FCP " 5759 "WQ (%d)\n", fcp_wqidx); 5760 goto out_free_fcp_wq; 5761 } 5762 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 5763 } 5764 5765 /* 5766 * Create Receive Queue (RQ) 5767 */ 5768 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 5769 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 5770 5771 /* Create Receive Queue for header */ 5772 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5773 phba->sli4_hba.rq_ecount); 5774 if (!qdesc) { 5775 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5776 "0506 Failed allocate receive HRQ\n"); 5777 goto out_free_fcp_wq; 5778 } 5779 phba->sli4_hba.hdr_rq = qdesc; 5780 5781 /* Create Receive Queue for data */ 5782 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5783 phba->sli4_hba.rq_ecount); 5784 if (!qdesc) { 5785 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5786 "0507 Failed allocate receive DRQ\n"); 5787 goto out_free_hdr_rq; 5788 } 5789 phba->sli4_hba.dat_rq = qdesc; 5790 5791 return 0; 5792 5793 out_free_hdr_rq: 5794 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5795 phba->sli4_hba.hdr_rq = NULL; 5796 out_free_fcp_wq: 5797 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 5798 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 5799 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 5800 } 5801 kfree(phba->sli4_hba.fcp_wq); 5802 out_free_els_wq: 5803 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5804 phba->sli4_hba.els_wq = NULL; 5805 out_free_mbx_wq: 5806 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5807 phba->sli4_hba.mbx_wq = NULL; 5808 out_free_fcp_cq: 5809 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 5810 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 5811 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 5812 } 5813 kfree(phba->sli4_hba.fcp_cq); 5814 out_free_els_cq: 5815 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5816 phba->sli4_hba.els_cq = NULL; 5817 out_free_mbx_cq: 5818 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5819 phba->sli4_hba.mbx_cq = NULL; 5820 out_free_fp_eq: 5821 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 5822 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 5823 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 5824 } 5825 kfree(phba->sli4_hba.fp_eq); 5826 out_free_sp_eq: 5827 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5828 phba->sli4_hba.sp_eq = NULL; 5829 out_error: 5830 return -ENOMEM; 5831 } 5832 5833 /** 5834 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 5835 * @phba: pointer to lpfc hba data structure. 5836 * 5837 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 5838 * operation. 5839 * 5840 * Return codes 5841 * 0 - successful 5842 * ENOMEM - No availble memory 5843 * EIO - The mailbox failed to complete successfully. 5844 **/ 5845 static void 5846 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 5847 { 5848 int fcp_qidx; 5849 5850 /* Release mailbox command work queue */ 5851 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5852 phba->sli4_hba.mbx_wq = NULL; 5853 5854 /* Release ELS work queue */ 5855 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5856 phba->sli4_hba.els_wq = NULL; 5857 5858 /* Release FCP work queue */ 5859 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5860 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 5861 kfree(phba->sli4_hba.fcp_wq); 5862 phba->sli4_hba.fcp_wq = NULL; 5863 5864 /* Release unsolicited receive queue */ 5865 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5866 phba->sli4_hba.hdr_rq = NULL; 5867 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 5868 phba->sli4_hba.dat_rq = NULL; 5869 5870 /* Release ELS complete queue */ 5871 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5872 phba->sli4_hba.els_cq = NULL; 5873 5874 /* Release mailbox command complete queue */ 5875 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5876 phba->sli4_hba.mbx_cq = NULL; 5877 5878 /* Release FCP response complete queue */ 5879 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5880 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 5881 kfree(phba->sli4_hba.fcp_cq); 5882 phba->sli4_hba.fcp_cq = NULL; 5883 5884 /* Release fast-path event queue */ 5885 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5886 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 5887 kfree(phba->sli4_hba.fp_eq); 5888 phba->sli4_hba.fp_eq = NULL; 5889 5890 /* Release slow-path event queue */ 5891 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5892 phba->sli4_hba.sp_eq = NULL; 5893 5894 return; 5895 } 5896 5897 /** 5898 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 5899 * @phba: pointer to lpfc hba data structure. 5900 * 5901 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 5902 * operation. 5903 * 5904 * Return codes 5905 * 0 - successful 5906 * ENOMEM - No availble memory 5907 * EIO - The mailbox failed to complete successfully. 5908 **/ 5909 int 5910 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 5911 { 5912 int rc = -ENOMEM; 5913 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5914 int fcp_cq_index = 0; 5915 5916 /* 5917 * Set up Event Queues (EQs) 5918 */ 5919 5920 /* Set up slow-path event queue */ 5921 if (!phba->sli4_hba.sp_eq) { 5922 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5923 "0520 Slow-path EQ not allocated\n"); 5924 goto out_error; 5925 } 5926 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 5927 LPFC_SP_DEF_IMAX); 5928 if (rc) { 5929 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5930 "0521 Failed setup of slow-path EQ: " 5931 "rc = 0x%x\n", rc); 5932 goto out_error; 5933 } 5934 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5935 "2583 Slow-path EQ setup: queue-id=%d\n", 5936 phba->sli4_hba.sp_eq->queue_id); 5937 5938 /* Set up fast-path event queue */ 5939 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5940 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 5941 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5942 "0522 Fast-path EQ (%d) not " 5943 "allocated\n", fcp_eqidx); 5944 goto out_destroy_fp_eq; 5945 } 5946 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 5947 phba->cfg_fcp_imax); 5948 if (rc) { 5949 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5950 "0523 Failed setup of fast-path EQ " 5951 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 5952 goto out_destroy_fp_eq; 5953 } 5954 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5955 "2584 Fast-path EQ setup: " 5956 "queue[%d]-id=%d\n", fcp_eqidx, 5957 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 5958 } 5959 5960 /* 5961 * Set up Complete Queues (CQs) 5962 */ 5963 5964 /* Set up slow-path MBOX Complete Queue as the first CQ */ 5965 if (!phba->sli4_hba.mbx_cq) { 5966 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5967 "0528 Mailbox CQ not allocated\n"); 5968 goto out_destroy_fp_eq; 5969 } 5970 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 5971 LPFC_MCQ, LPFC_MBOX); 5972 if (rc) { 5973 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5974 "0529 Failed setup of slow-path mailbox CQ: " 5975 "rc = 0x%x\n", rc); 5976 goto out_destroy_fp_eq; 5977 } 5978 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5979 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 5980 phba->sli4_hba.mbx_cq->queue_id, 5981 phba->sli4_hba.sp_eq->queue_id); 5982 5983 /* Set up slow-path ELS Complete Queue */ 5984 if (!phba->sli4_hba.els_cq) { 5985 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5986 "0530 ELS CQ not allocated\n"); 5987 goto out_destroy_mbx_cq; 5988 } 5989 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 5990 LPFC_WCQ, LPFC_ELS); 5991 if (rc) { 5992 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5993 "0531 Failed setup of slow-path ELS CQ: " 5994 "rc = 0x%x\n", rc); 5995 goto out_destroy_mbx_cq; 5996 } 5997 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5998 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 5999 phba->sli4_hba.els_cq->queue_id, 6000 phba->sli4_hba.sp_eq->queue_id); 6001 6002 /* Set up fast-path FCP Response Complete Queue */ 6003 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 6004 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 6005 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6006 "0526 Fast-path FCP CQ (%d) not " 6007 "allocated\n", fcp_cqidx); 6008 goto out_destroy_fcp_cq; 6009 } 6010 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 6011 phba->sli4_hba.fp_eq[fcp_cqidx], 6012 LPFC_WCQ, LPFC_FCP); 6013 if (rc) { 6014 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6015 "0527 Failed setup of fast-path FCP " 6016 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 6017 goto out_destroy_fcp_cq; 6018 } 6019 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6020 "2588 FCP CQ setup: cq[%d]-id=%d, " 6021 "parent eq[%d]-id=%d\n", 6022 fcp_cqidx, 6023 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 6024 fcp_cqidx, 6025 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id); 6026 } 6027 6028 /* 6029 * Set up all the Work Queues (WQs) 6030 */ 6031 6032 /* Set up Mailbox Command Queue */ 6033 if (!phba->sli4_hba.mbx_wq) { 6034 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6035 "0538 Slow-path MQ not allocated\n"); 6036 goto out_destroy_fcp_cq; 6037 } 6038 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 6039 phba->sli4_hba.mbx_cq, LPFC_MBOX); 6040 if (rc) { 6041 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6042 "0539 Failed setup of slow-path MQ: " 6043 "rc = 0x%x\n", rc); 6044 goto out_destroy_fcp_cq; 6045 } 6046 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6047 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 6048 phba->sli4_hba.mbx_wq->queue_id, 6049 phba->sli4_hba.mbx_cq->queue_id); 6050 6051 /* Set up slow-path ELS Work Queue */ 6052 if (!phba->sli4_hba.els_wq) { 6053 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6054 "0536 Slow-path ELS WQ not allocated\n"); 6055 goto out_destroy_mbx_wq; 6056 } 6057 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 6058 phba->sli4_hba.els_cq, LPFC_ELS); 6059 if (rc) { 6060 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6061 "0537 Failed setup of slow-path ELS WQ: " 6062 "rc = 0x%x\n", rc); 6063 goto out_destroy_mbx_wq; 6064 } 6065 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6066 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 6067 phba->sli4_hba.els_wq->queue_id, 6068 phba->sli4_hba.els_cq->queue_id); 6069 6070 /* Set up fast-path FCP Work Queue */ 6071 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6072 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 6073 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6074 "0534 Fast-path FCP WQ (%d) not " 6075 "allocated\n", fcp_wqidx); 6076 goto out_destroy_fcp_wq; 6077 } 6078 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 6079 phba->sli4_hba.fcp_cq[fcp_cq_index], 6080 LPFC_FCP); 6081 if (rc) { 6082 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6083 "0535 Failed setup of fast-path FCP " 6084 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 6085 goto out_destroy_fcp_wq; 6086 } 6087 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6088 "2591 FCP WQ setup: wq[%d]-id=%d, " 6089 "parent cq[%d]-id=%d\n", 6090 fcp_wqidx, 6091 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 6092 fcp_cq_index, 6093 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 6094 /* Round robin FCP Work Queue's Completion Queue assignment */ 6095 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count); 6096 } 6097 6098 /* 6099 * Create Receive Queue (RQ) 6100 */ 6101 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 6102 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6103 "0540 Receive Queue not allocated\n"); 6104 goto out_destroy_fcp_wq; 6105 } 6106 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 6107 phba->sli4_hba.els_cq, LPFC_USOL); 6108 if (rc) { 6109 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6110 "0541 Failed setup of Receive Queue: " 6111 "rc = 0x%x\n", rc); 6112 goto out_destroy_fcp_wq; 6113 } 6114 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6115 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 6116 "parent cq-id=%d\n", 6117 phba->sli4_hba.hdr_rq->queue_id, 6118 phba->sli4_hba.dat_rq->queue_id, 6119 phba->sli4_hba.els_cq->queue_id); 6120 return 0; 6121 6122 out_destroy_fcp_wq: 6123 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 6124 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 6125 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6126 out_destroy_mbx_wq: 6127 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6128 out_destroy_fcp_cq: 6129 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 6130 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 6131 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6132 out_destroy_mbx_cq: 6133 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6134 out_destroy_fp_eq: 6135 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 6136 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 6137 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6138 out_error: 6139 return rc; 6140 } 6141 6142 /** 6143 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 6144 * @phba: pointer to lpfc hba data structure. 6145 * 6146 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 6147 * operation. 6148 * 6149 * Return codes 6150 * 0 - successful 6151 * ENOMEM - No availble memory 6152 * EIO - The mailbox failed to complete successfully. 6153 **/ 6154 void 6155 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 6156 { 6157 int fcp_qidx; 6158 6159 /* Unset mailbox command work queue */ 6160 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6161 /* Unset ELS work queue */ 6162 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6163 /* Unset unsolicited receive queue */ 6164 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 6165 /* Unset FCP work queue */ 6166 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6167 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 6168 /* Unset mailbox command complete queue */ 6169 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6170 /* Unset ELS complete queue */ 6171 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6172 /* Unset FCP response complete queue */ 6173 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6174 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 6175 /* Unset fast-path event queue */ 6176 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6177 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 6178 /* Unset slow-path event queue */ 6179 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6180 } 6181 6182 /** 6183 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 6184 * @phba: pointer to lpfc hba data structure. 6185 * 6186 * This routine is invoked to allocate and set up a pool of completion queue 6187 * events. The body of the completion queue event is a completion queue entry 6188 * CQE. For now, this pool is used for the interrupt service routine to queue 6189 * the following HBA completion queue events for the worker thread to process: 6190 * - Mailbox asynchronous events 6191 * - Receive queue completion unsolicited events 6192 * Later, this can be used for all the slow-path events. 6193 * 6194 * Return codes 6195 * 0 - successful 6196 * -ENOMEM - No availble memory 6197 **/ 6198 static int 6199 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 6200 { 6201 struct lpfc_cq_event *cq_event; 6202 int i; 6203 6204 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 6205 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 6206 if (!cq_event) 6207 goto out_pool_create_fail; 6208 list_add_tail(&cq_event->list, 6209 &phba->sli4_hba.sp_cqe_event_pool); 6210 } 6211 return 0; 6212 6213 out_pool_create_fail: 6214 lpfc_sli4_cq_event_pool_destroy(phba); 6215 return -ENOMEM; 6216 } 6217 6218 /** 6219 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 6220 * @phba: pointer to lpfc hba data structure. 6221 * 6222 * This routine is invoked to free the pool of completion queue events at 6223 * driver unload time. Note that, it is the responsibility of the driver 6224 * cleanup routine to free all the outstanding completion-queue events 6225 * allocated from this pool back into the pool before invoking this routine 6226 * to destroy the pool. 6227 **/ 6228 static void 6229 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 6230 { 6231 struct lpfc_cq_event *cq_event, *next_cq_event; 6232 6233 list_for_each_entry_safe(cq_event, next_cq_event, 6234 &phba->sli4_hba.sp_cqe_event_pool, list) { 6235 list_del(&cq_event->list); 6236 kfree(cq_event); 6237 } 6238 } 6239 6240 /** 6241 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6242 * @phba: pointer to lpfc hba data structure. 6243 * 6244 * This routine is the lock free version of the API invoked to allocate a 6245 * completion-queue event from the free pool. 6246 * 6247 * Return: Pointer to the newly allocated completion-queue event if successful 6248 * NULL otherwise. 6249 **/ 6250 struct lpfc_cq_event * 6251 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6252 { 6253 struct lpfc_cq_event *cq_event = NULL; 6254 6255 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 6256 struct lpfc_cq_event, list); 6257 return cq_event; 6258 } 6259 6260 /** 6261 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6262 * @phba: pointer to lpfc hba data structure. 6263 * 6264 * This routine is the lock version of the API invoked to allocate a 6265 * completion-queue event from the free pool. 6266 * 6267 * Return: Pointer to the newly allocated completion-queue event if successful 6268 * NULL otherwise. 6269 **/ 6270 struct lpfc_cq_event * 6271 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6272 { 6273 struct lpfc_cq_event *cq_event; 6274 unsigned long iflags; 6275 6276 spin_lock_irqsave(&phba->hbalock, iflags); 6277 cq_event = __lpfc_sli4_cq_event_alloc(phba); 6278 spin_unlock_irqrestore(&phba->hbalock, iflags); 6279 return cq_event; 6280 } 6281 6282 /** 6283 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6284 * @phba: pointer to lpfc hba data structure. 6285 * @cq_event: pointer to the completion queue event to be freed. 6286 * 6287 * This routine is the lock free version of the API invoked to release a 6288 * completion-queue event back into the free pool. 6289 **/ 6290 void 6291 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6292 struct lpfc_cq_event *cq_event) 6293 { 6294 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 6295 } 6296 6297 /** 6298 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6299 * @phba: pointer to lpfc hba data structure. 6300 * @cq_event: pointer to the completion queue event to be freed. 6301 * 6302 * This routine is the lock version of the API invoked to release a 6303 * completion-queue event back into the free pool. 6304 **/ 6305 void 6306 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6307 struct lpfc_cq_event *cq_event) 6308 { 6309 unsigned long iflags; 6310 spin_lock_irqsave(&phba->hbalock, iflags); 6311 __lpfc_sli4_cq_event_release(phba, cq_event); 6312 spin_unlock_irqrestore(&phba->hbalock, iflags); 6313 } 6314 6315 /** 6316 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 6317 * @phba: pointer to lpfc hba data structure. 6318 * 6319 * This routine is to free all the pending completion-queue events to the 6320 * back into the free pool for device reset. 6321 **/ 6322 static void 6323 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 6324 { 6325 LIST_HEAD(cqelist); 6326 struct lpfc_cq_event *cqe; 6327 unsigned long iflags; 6328 6329 /* Retrieve all the pending WCQEs from pending WCQE lists */ 6330 spin_lock_irqsave(&phba->hbalock, iflags); 6331 /* Pending FCP XRI abort events */ 6332 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 6333 &cqelist); 6334 /* Pending ELS XRI abort events */ 6335 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 6336 &cqelist); 6337 /* Pending asynnc events */ 6338 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 6339 &cqelist); 6340 spin_unlock_irqrestore(&phba->hbalock, iflags); 6341 6342 while (!list_empty(&cqelist)) { 6343 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 6344 lpfc_sli4_cq_event_release(phba, cqe); 6345 } 6346 } 6347 6348 /** 6349 * lpfc_pci_function_reset - Reset pci function. 6350 * @phba: pointer to lpfc hba data structure. 6351 * 6352 * This routine is invoked to request a PCI function reset. It will destroys 6353 * all resources assigned to the PCI function which originates this request. 6354 * 6355 * Return codes 6356 * 0 - successful 6357 * ENOMEM - No availble memory 6358 * EIO - The mailbox failed to complete successfully. 6359 **/ 6360 int 6361 lpfc_pci_function_reset(struct lpfc_hba *phba) 6362 { 6363 LPFC_MBOXQ_t *mboxq; 6364 uint32_t rc = 0; 6365 uint32_t shdr_status, shdr_add_status; 6366 union lpfc_sli4_cfg_shdr *shdr; 6367 6368 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6369 if (!mboxq) { 6370 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6371 "0494 Unable to allocate memory for issuing " 6372 "SLI_FUNCTION_RESET mailbox command\n"); 6373 return -ENOMEM; 6374 } 6375 6376 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */ 6377 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6378 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 6379 LPFC_SLI4_MBX_EMBED); 6380 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6381 shdr = (union lpfc_sli4_cfg_shdr *) 6382 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6383 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6384 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6385 if (rc != MBX_TIMEOUT) 6386 mempool_free(mboxq, phba->mbox_mem_pool); 6387 if (shdr_status || shdr_add_status || rc) { 6388 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6389 "0495 SLI_FUNCTION_RESET mailbox failed with " 6390 "status x%x add_status x%x, mbx status x%x\n", 6391 shdr_status, shdr_add_status, rc); 6392 rc = -ENXIO; 6393 } 6394 return rc; 6395 } 6396 6397 /** 6398 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 6399 * @phba: pointer to lpfc hba data structure. 6400 * @cnt: number of nop mailbox commands to send. 6401 * 6402 * This routine is invoked to send a number @cnt of NOP mailbox command and 6403 * wait for each command to complete. 6404 * 6405 * Return: the number of NOP mailbox command completed. 6406 **/ 6407 static int 6408 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 6409 { 6410 LPFC_MBOXQ_t *mboxq; 6411 int length, cmdsent; 6412 uint32_t mbox_tmo; 6413 uint32_t rc = 0; 6414 uint32_t shdr_status, shdr_add_status; 6415 union lpfc_sli4_cfg_shdr *shdr; 6416 6417 if (cnt == 0) { 6418 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6419 "2518 Requested to send 0 NOP mailbox cmd\n"); 6420 return cnt; 6421 } 6422 6423 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6424 if (!mboxq) { 6425 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6426 "2519 Unable to allocate memory for issuing " 6427 "NOP mailbox command\n"); 6428 return 0; 6429 } 6430 6431 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 6432 length = (sizeof(struct lpfc_mbx_nop) - 6433 sizeof(struct lpfc_sli4_cfg_mhdr)); 6434 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6435 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 6436 6437 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 6438 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 6439 if (!phba->sli4_hba.intr_enable) 6440 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6441 else 6442 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 6443 if (rc == MBX_TIMEOUT) 6444 break; 6445 /* Check return status */ 6446 shdr = (union lpfc_sli4_cfg_shdr *) 6447 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6448 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6449 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 6450 &shdr->response); 6451 if (shdr_status || shdr_add_status || rc) { 6452 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6453 "2520 NOP mailbox command failed " 6454 "status x%x add_status x%x mbx " 6455 "status x%x\n", shdr_status, 6456 shdr_add_status, rc); 6457 break; 6458 } 6459 } 6460 6461 if (rc != MBX_TIMEOUT) 6462 mempool_free(mboxq, phba->mbox_mem_pool); 6463 6464 return cmdsent; 6465 } 6466 6467 /** 6468 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device 6469 * @phba: pointer to lpfc hba data structure. 6470 * @fcfi: fcf index. 6471 * 6472 * This routine is invoked to unregister a FCFI from device. 6473 **/ 6474 void 6475 lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi) 6476 { 6477 LPFC_MBOXQ_t *mbox; 6478 uint32_t mbox_tmo; 6479 int rc; 6480 unsigned long flags; 6481 6482 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6483 6484 if (!mbox) 6485 return; 6486 6487 lpfc_unreg_fcfi(mbox, fcfi); 6488 6489 if (!phba->sli4_hba.intr_enable) 6490 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 6491 else { 6492 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 6493 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); 6494 } 6495 if (rc != MBX_TIMEOUT) 6496 mempool_free(mbox, phba->mbox_mem_pool); 6497 if (rc != MBX_SUCCESS) 6498 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6499 "2517 Unregister FCFI command failed " 6500 "status %d, mbxStatus x%x\n", rc, 6501 bf_get(lpfc_mqe_status, &mbox->u.mqe)); 6502 else { 6503 spin_lock_irqsave(&phba->hbalock, flags); 6504 /* Mark the FCFI is no longer registered */ 6505 phba->fcf.fcf_flag &= 6506 ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_SCAN_DONE); 6507 spin_unlock_irqrestore(&phba->hbalock, flags); 6508 } 6509 } 6510 6511 /** 6512 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 6513 * @phba: pointer to lpfc hba data structure. 6514 * 6515 * This routine is invoked to set up the PCI device memory space for device 6516 * with SLI-4 interface spec. 6517 * 6518 * Return codes 6519 * 0 - successful 6520 * other values - error 6521 **/ 6522 static int 6523 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 6524 { 6525 struct pci_dev *pdev; 6526 unsigned long bar0map_len, bar1map_len, bar2map_len; 6527 int error = -ENODEV; 6528 6529 /* Obtain PCI device reference */ 6530 if (!phba->pcidev) 6531 return error; 6532 else 6533 pdev = phba->pcidev; 6534 6535 /* Set the device DMA mask size */ 6536 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6537 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6538 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6539 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6540 return error; 6541 } 6542 } 6543 6544 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the 6545 * number of bytes required by each mapping. They are actually 6546 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device. 6547 */ 6548 if (pci_resource_start(pdev, 0)) { 6549 phba->pci_bar0_map = pci_resource_start(pdev, 0); 6550 bar0map_len = pci_resource_len(pdev, 0); 6551 } else { 6552 phba->pci_bar0_map = pci_resource_start(pdev, 1); 6553 bar0map_len = pci_resource_len(pdev, 1); 6554 } 6555 phba->pci_bar1_map = pci_resource_start(pdev, 2); 6556 bar1map_len = pci_resource_len(pdev, 2); 6557 6558 phba->pci_bar2_map = pci_resource_start(pdev, 4); 6559 bar2map_len = pci_resource_len(pdev, 4); 6560 6561 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */ 6562 phba->sli4_hba.conf_regs_memmap_p = 6563 ioremap(phba->pci_bar0_map, bar0map_len); 6564 if (!phba->sli4_hba.conf_regs_memmap_p) { 6565 dev_printk(KERN_ERR, &pdev->dev, 6566 "ioremap failed for SLI4 PCI config registers.\n"); 6567 goto out; 6568 } 6569 6570 /* Map SLI4 HBA Control Register base to a kernel virtual address. */ 6571 phba->sli4_hba.ctrl_regs_memmap_p = 6572 ioremap(phba->pci_bar1_map, bar1map_len); 6573 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 6574 dev_printk(KERN_ERR, &pdev->dev, 6575 "ioremap failed for SLI4 HBA control registers.\n"); 6576 goto out_iounmap_conf; 6577 } 6578 6579 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */ 6580 phba->sli4_hba.drbl_regs_memmap_p = 6581 ioremap(phba->pci_bar2_map, bar2map_len); 6582 if (!phba->sli4_hba.drbl_regs_memmap_p) { 6583 dev_printk(KERN_ERR, &pdev->dev, 6584 "ioremap failed for SLI4 HBA doorbell registers.\n"); 6585 goto out_iounmap_ctrl; 6586 } 6587 6588 /* Set up BAR0 PCI config space register memory map */ 6589 lpfc_sli4_bar0_register_memmap(phba); 6590 6591 /* Set up BAR1 register memory map */ 6592 lpfc_sli4_bar1_register_memmap(phba); 6593 6594 /* Set up BAR2 register memory map */ 6595 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 6596 if (error) 6597 goto out_iounmap_all; 6598 6599 return 0; 6600 6601 out_iounmap_all: 6602 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6603 out_iounmap_ctrl: 6604 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6605 out_iounmap_conf: 6606 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6607 out: 6608 return error; 6609 } 6610 6611 /** 6612 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 6613 * @phba: pointer to lpfc hba data structure. 6614 * 6615 * This routine is invoked to unset the PCI device memory space for device 6616 * with SLI-4 interface spec. 6617 **/ 6618 static void 6619 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 6620 { 6621 struct pci_dev *pdev; 6622 6623 /* Obtain PCI device reference */ 6624 if (!phba->pcidev) 6625 return; 6626 else 6627 pdev = phba->pcidev; 6628 6629 /* Free coherent DMA memory allocated */ 6630 6631 /* Unmap I/O memory space */ 6632 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6633 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6634 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6635 6636 return; 6637 } 6638 6639 /** 6640 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 6641 * @phba: pointer to lpfc hba data structure. 6642 * 6643 * This routine is invoked to enable the MSI-X interrupt vectors to device 6644 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 6645 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 6646 * invoked, enables either all or nothing, depending on the current 6647 * availability of PCI vector resources. The device driver is responsible 6648 * for calling the individual request_irq() to register each MSI-X vector 6649 * with a interrupt handler, which is done in this function. Note that 6650 * later when device is unloading, the driver should always call free_irq() 6651 * on all MSI-X vectors it has done request_irq() on before calling 6652 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 6653 * will be left with MSI-X enabled and leaks its vectors. 6654 * 6655 * Return codes 6656 * 0 - successful 6657 * other values - error 6658 **/ 6659 static int 6660 lpfc_sli_enable_msix(struct lpfc_hba *phba) 6661 { 6662 int rc, i; 6663 LPFC_MBOXQ_t *pmb; 6664 6665 /* Set up MSI-X multi-message vectors */ 6666 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6667 phba->msix_entries[i].entry = i; 6668 6669 /* Configure MSI-X capability structure */ 6670 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 6671 ARRAY_SIZE(phba->msix_entries)); 6672 if (rc) { 6673 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6674 "0420 PCI enable MSI-X failed (%d)\n", rc); 6675 goto msi_fail_out; 6676 } 6677 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6678 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6679 "0477 MSI-X entry[%d]: vector=x%x " 6680 "message=%d\n", i, 6681 phba->msix_entries[i].vector, 6682 phba->msix_entries[i].entry); 6683 /* 6684 * Assign MSI-X vectors to interrupt handlers 6685 */ 6686 6687 /* vector-0 is associated to slow-path handler */ 6688 rc = request_irq(phba->msix_entries[0].vector, 6689 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 6690 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6691 if (rc) { 6692 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6693 "0421 MSI-X slow-path request_irq failed " 6694 "(%d)\n", rc); 6695 goto msi_fail_out; 6696 } 6697 6698 /* vector-1 is associated to fast-path handler */ 6699 rc = request_irq(phba->msix_entries[1].vector, 6700 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 6701 LPFC_FP_DRIVER_HANDLER_NAME, phba); 6702 6703 if (rc) { 6704 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6705 "0429 MSI-X fast-path request_irq failed " 6706 "(%d)\n", rc); 6707 goto irq_fail_out; 6708 } 6709 6710 /* 6711 * Configure HBA MSI-X attention conditions to messages 6712 */ 6713 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6714 6715 if (!pmb) { 6716 rc = -ENOMEM; 6717 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6718 "0474 Unable to allocate memory for issuing " 6719 "MBOX_CONFIG_MSI command\n"); 6720 goto mem_fail_out; 6721 } 6722 rc = lpfc_config_msi(phba, pmb); 6723 if (rc) 6724 goto mbx_fail_out; 6725 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6726 if (rc != MBX_SUCCESS) { 6727 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 6728 "0351 Config MSI mailbox command failed, " 6729 "mbxCmd x%x, mbxStatus x%x\n", 6730 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 6731 goto mbx_fail_out; 6732 } 6733 6734 /* Free memory allocated for mailbox command */ 6735 mempool_free(pmb, phba->mbox_mem_pool); 6736 return rc; 6737 6738 mbx_fail_out: 6739 /* Free memory allocated for mailbox command */ 6740 mempool_free(pmb, phba->mbox_mem_pool); 6741 6742 mem_fail_out: 6743 /* free the irq already requested */ 6744 free_irq(phba->msix_entries[1].vector, phba); 6745 6746 irq_fail_out: 6747 /* free the irq already requested */ 6748 free_irq(phba->msix_entries[0].vector, phba); 6749 6750 msi_fail_out: 6751 /* Unconfigure MSI-X capability structure */ 6752 pci_disable_msix(phba->pcidev); 6753 return rc; 6754 } 6755 6756 /** 6757 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 6758 * @phba: pointer to lpfc hba data structure. 6759 * 6760 * This routine is invoked to release the MSI-X vectors and then disable the 6761 * MSI-X interrupt mode to device with SLI-3 interface spec. 6762 **/ 6763 static void 6764 lpfc_sli_disable_msix(struct lpfc_hba *phba) 6765 { 6766 int i; 6767 6768 /* Free up MSI-X multi-message vectors */ 6769 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6770 free_irq(phba->msix_entries[i].vector, phba); 6771 /* Disable MSI-X */ 6772 pci_disable_msix(phba->pcidev); 6773 6774 return; 6775 } 6776 6777 /** 6778 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 6779 * @phba: pointer to lpfc hba data structure. 6780 * 6781 * This routine is invoked to enable the MSI interrupt mode to device with 6782 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 6783 * enable the MSI vector. The device driver is responsible for calling the 6784 * request_irq() to register MSI vector with a interrupt the handler, which 6785 * is done in this function. 6786 * 6787 * Return codes 6788 * 0 - successful 6789 * other values - error 6790 */ 6791 static int 6792 lpfc_sli_enable_msi(struct lpfc_hba *phba) 6793 { 6794 int rc; 6795 6796 rc = pci_enable_msi(phba->pcidev); 6797 if (!rc) 6798 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6799 "0462 PCI enable MSI mode success.\n"); 6800 else { 6801 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6802 "0471 PCI enable MSI mode failed (%d)\n", rc); 6803 return rc; 6804 } 6805 6806 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6807 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6808 if (rc) { 6809 pci_disable_msi(phba->pcidev); 6810 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6811 "0478 MSI request_irq failed (%d)\n", rc); 6812 } 6813 return rc; 6814 } 6815 6816 /** 6817 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 6818 * @phba: pointer to lpfc hba data structure. 6819 * 6820 * This routine is invoked to disable the MSI interrupt mode to device with 6821 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 6822 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6823 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6824 * its vector. 6825 */ 6826 static void 6827 lpfc_sli_disable_msi(struct lpfc_hba *phba) 6828 { 6829 free_irq(phba->pcidev->irq, phba); 6830 pci_disable_msi(phba->pcidev); 6831 return; 6832 } 6833 6834 /** 6835 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 6836 * @phba: pointer to lpfc hba data structure. 6837 * 6838 * This routine is invoked to enable device interrupt and associate driver's 6839 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 6840 * spec. Depends on the interrupt mode configured to the driver, the driver 6841 * will try to fallback from the configured interrupt mode to an interrupt 6842 * mode which is supported by the platform, kernel, and device in the order 6843 * of: 6844 * MSI-X -> MSI -> IRQ. 6845 * 6846 * Return codes 6847 * 0 - successful 6848 * other values - error 6849 **/ 6850 static uint32_t 6851 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6852 { 6853 uint32_t intr_mode = LPFC_INTR_ERROR; 6854 int retval; 6855 6856 if (cfg_mode == 2) { 6857 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 6858 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 6859 if (!retval) { 6860 /* Now, try to enable MSI-X interrupt mode */ 6861 retval = lpfc_sli_enable_msix(phba); 6862 if (!retval) { 6863 /* Indicate initialization to MSI-X mode */ 6864 phba->intr_type = MSIX; 6865 intr_mode = 2; 6866 } 6867 } 6868 } 6869 6870 /* Fallback to MSI if MSI-X initialization failed */ 6871 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6872 retval = lpfc_sli_enable_msi(phba); 6873 if (!retval) { 6874 /* Indicate initialization to MSI mode */ 6875 phba->intr_type = MSI; 6876 intr_mode = 1; 6877 } 6878 } 6879 6880 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6881 if (phba->intr_type == NONE) { 6882 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6883 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6884 if (!retval) { 6885 /* Indicate initialization to INTx mode */ 6886 phba->intr_type = INTx; 6887 intr_mode = 0; 6888 } 6889 } 6890 return intr_mode; 6891 } 6892 6893 /** 6894 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 6895 * @phba: pointer to lpfc hba data structure. 6896 * 6897 * This routine is invoked to disable device interrupt and disassociate the 6898 * driver's interrupt handler(s) from interrupt vector(s) to device with 6899 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 6900 * release the interrupt vector(s) for the message signaled interrupt. 6901 **/ 6902 static void 6903 lpfc_sli_disable_intr(struct lpfc_hba *phba) 6904 { 6905 /* Disable the currently initialized interrupt mode */ 6906 if (phba->intr_type == MSIX) 6907 lpfc_sli_disable_msix(phba); 6908 else if (phba->intr_type == MSI) 6909 lpfc_sli_disable_msi(phba); 6910 else if (phba->intr_type == INTx) 6911 free_irq(phba->pcidev->irq, phba); 6912 6913 /* Reset interrupt management states */ 6914 phba->intr_type = NONE; 6915 phba->sli.slistat.sli_intr = 0; 6916 6917 return; 6918 } 6919 6920 /** 6921 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 6922 * @phba: pointer to lpfc hba data structure. 6923 * 6924 * This routine is invoked to enable the MSI-X interrupt vectors to device 6925 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 6926 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 6927 * enables either all or nothing, depending on the current availability of 6928 * PCI vector resources. The device driver is responsible for calling the 6929 * individual request_irq() to register each MSI-X vector with a interrupt 6930 * handler, which is done in this function. Note that later when device is 6931 * unloading, the driver should always call free_irq() on all MSI-X vectors 6932 * it has done request_irq() on before calling pci_disable_msix(). Failure 6933 * to do so results in a BUG_ON() and a device will be left with MSI-X 6934 * enabled and leaks its vectors. 6935 * 6936 * Return codes 6937 * 0 - successful 6938 * other values - error 6939 **/ 6940 static int 6941 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 6942 { 6943 int rc, index; 6944 6945 /* Set up MSI-X multi-message vectors */ 6946 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 6947 phba->sli4_hba.msix_entries[index].entry = index; 6948 6949 /* Configure MSI-X capability structure */ 6950 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 6951 phba->sli4_hba.cfg_eqn); 6952 if (rc) { 6953 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6954 "0484 PCI enable MSI-X failed (%d)\n", rc); 6955 goto msi_fail_out; 6956 } 6957 /* Log MSI-X vector assignment */ 6958 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 6959 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6960 "0489 MSI-X entry[%d]: vector=x%x " 6961 "message=%d\n", index, 6962 phba->sli4_hba.msix_entries[index].vector, 6963 phba->sli4_hba.msix_entries[index].entry); 6964 /* 6965 * Assign MSI-X vectors to interrupt handlers 6966 */ 6967 6968 /* The first vector must associated to slow-path handler for MQ */ 6969 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 6970 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 6971 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6972 if (rc) { 6973 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6974 "0485 MSI-X slow-path request_irq failed " 6975 "(%d)\n", rc); 6976 goto msi_fail_out; 6977 } 6978 6979 /* The rest of the vector(s) are associated to fast-path handler(s) */ 6980 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) { 6981 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 6982 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 6983 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 6984 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 6985 LPFC_FP_DRIVER_HANDLER_NAME, 6986 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 6987 if (rc) { 6988 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6989 "0486 MSI-X fast-path (%d) " 6990 "request_irq failed (%d)\n", index, rc); 6991 goto cfg_fail_out; 6992 } 6993 } 6994 6995 return rc; 6996 6997 cfg_fail_out: 6998 /* free the irq already requested */ 6999 for (--index; index >= 1; index--) 7000 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 7001 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7002 7003 /* free the irq already requested */ 7004 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7005 7006 msi_fail_out: 7007 /* Unconfigure MSI-X capability structure */ 7008 pci_disable_msix(phba->pcidev); 7009 return rc; 7010 } 7011 7012 /** 7013 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 7014 * @phba: pointer to lpfc hba data structure. 7015 * 7016 * This routine is invoked to release the MSI-X vectors and then disable the 7017 * MSI-X interrupt mode to device with SLI-4 interface spec. 7018 **/ 7019 static void 7020 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 7021 { 7022 int index; 7023 7024 /* Free up MSI-X multi-message vectors */ 7025 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7026 7027 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) 7028 free_irq(phba->sli4_hba.msix_entries[index].vector, 7029 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7030 /* Disable MSI-X */ 7031 pci_disable_msix(phba->pcidev); 7032 7033 return; 7034 } 7035 7036 /** 7037 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 7038 * @phba: pointer to lpfc hba data structure. 7039 * 7040 * This routine is invoked to enable the MSI interrupt mode to device with 7041 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 7042 * to enable the MSI vector. The device driver is responsible for calling 7043 * the request_irq() to register MSI vector with a interrupt the handler, 7044 * which is done in this function. 7045 * 7046 * Return codes 7047 * 0 - successful 7048 * other values - error 7049 **/ 7050 static int 7051 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 7052 { 7053 int rc, index; 7054 7055 rc = pci_enable_msi(phba->pcidev); 7056 if (!rc) 7057 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7058 "0487 PCI enable MSI mode success.\n"); 7059 else { 7060 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7061 "0488 PCI enable MSI mode failed (%d)\n", rc); 7062 return rc; 7063 } 7064 7065 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7066 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7067 if (rc) { 7068 pci_disable_msi(phba->pcidev); 7069 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7070 "0490 MSI request_irq failed (%d)\n", rc); 7071 } 7072 7073 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 7074 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7075 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7076 } 7077 7078 return rc; 7079 } 7080 7081 /** 7082 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 7083 * @phba: pointer to lpfc hba data structure. 7084 * 7085 * This routine is invoked to disable the MSI interrupt mode to device with 7086 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 7087 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7088 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7089 * its vector. 7090 **/ 7091 static void 7092 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 7093 { 7094 free_irq(phba->pcidev->irq, phba); 7095 pci_disable_msi(phba->pcidev); 7096 return; 7097 } 7098 7099 /** 7100 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 7101 * @phba: pointer to lpfc hba data structure. 7102 * 7103 * This routine is invoked to enable device interrupt and associate driver's 7104 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 7105 * interface spec. Depends on the interrupt mode configured to the driver, 7106 * the driver will try to fallback from the configured interrupt mode to an 7107 * interrupt mode which is supported by the platform, kernel, and device in 7108 * the order of: 7109 * MSI-X -> MSI -> IRQ. 7110 * 7111 * Return codes 7112 * 0 - successful 7113 * other values - error 7114 **/ 7115 static uint32_t 7116 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7117 { 7118 uint32_t intr_mode = LPFC_INTR_ERROR; 7119 int retval, index; 7120 7121 if (cfg_mode == 2) { 7122 /* Preparation before conf_msi mbox cmd */ 7123 retval = 0; 7124 if (!retval) { 7125 /* Now, try to enable MSI-X interrupt mode */ 7126 retval = lpfc_sli4_enable_msix(phba); 7127 if (!retval) { 7128 /* Indicate initialization to MSI-X mode */ 7129 phba->intr_type = MSIX; 7130 intr_mode = 2; 7131 } 7132 } 7133 } 7134 7135 /* Fallback to MSI if MSI-X initialization failed */ 7136 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7137 retval = lpfc_sli4_enable_msi(phba); 7138 if (!retval) { 7139 /* Indicate initialization to MSI mode */ 7140 phba->intr_type = MSI; 7141 intr_mode = 1; 7142 } 7143 } 7144 7145 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7146 if (phba->intr_type == NONE) { 7147 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7148 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7149 if (!retval) { 7150 /* Indicate initialization to INTx mode */ 7151 phba->intr_type = INTx; 7152 intr_mode = 0; 7153 for (index = 0; index < phba->cfg_fcp_eq_count; 7154 index++) { 7155 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7156 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7157 } 7158 } 7159 } 7160 return intr_mode; 7161 } 7162 7163 /** 7164 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 7165 * @phba: pointer to lpfc hba data structure. 7166 * 7167 * This routine is invoked to disable device interrupt and disassociate 7168 * the driver's interrupt handler(s) from interrupt vector(s) to device 7169 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 7170 * will release the interrupt vector(s) for the message signaled interrupt. 7171 **/ 7172 static void 7173 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 7174 { 7175 /* Disable the currently initialized interrupt mode */ 7176 if (phba->intr_type == MSIX) 7177 lpfc_sli4_disable_msix(phba); 7178 else if (phba->intr_type == MSI) 7179 lpfc_sli4_disable_msi(phba); 7180 else if (phba->intr_type == INTx) 7181 free_irq(phba->pcidev->irq, phba); 7182 7183 /* Reset interrupt management states */ 7184 phba->intr_type = NONE; 7185 phba->sli.slistat.sli_intr = 0; 7186 7187 return; 7188 } 7189 7190 /** 7191 * lpfc_unset_hba - Unset SLI3 hba device initialization 7192 * @phba: pointer to lpfc hba data structure. 7193 * 7194 * This routine is invoked to unset the HBA device initialization steps to 7195 * a device with SLI-3 interface spec. 7196 **/ 7197 static void 7198 lpfc_unset_hba(struct lpfc_hba *phba) 7199 { 7200 struct lpfc_vport *vport = phba->pport; 7201 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7202 7203 spin_lock_irq(shost->host_lock); 7204 vport->load_flag |= FC_UNLOADING; 7205 spin_unlock_irq(shost->host_lock); 7206 7207 lpfc_stop_hba_timers(phba); 7208 7209 phba->pport->work_port_events = 0; 7210 7211 lpfc_sli_hba_down(phba); 7212 7213 lpfc_sli_brdrestart(phba); 7214 7215 lpfc_sli_disable_intr(phba); 7216 7217 return; 7218 } 7219 7220 /** 7221 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 7222 * @phba: pointer to lpfc hba data structure. 7223 * 7224 * This routine is invoked to unset the HBA device initialization steps to 7225 * a device with SLI-4 interface spec. 7226 **/ 7227 static void 7228 lpfc_sli4_unset_hba(struct lpfc_hba *phba) 7229 { 7230 struct lpfc_vport *vport = phba->pport; 7231 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7232 7233 spin_lock_irq(shost->host_lock); 7234 vport->load_flag |= FC_UNLOADING; 7235 spin_unlock_irq(shost->host_lock); 7236 7237 phba->pport->work_port_events = 0; 7238 7239 lpfc_sli4_hba_down(phba); 7240 7241 lpfc_sli4_disable_intr(phba); 7242 7243 return; 7244 } 7245 7246 /** 7247 * lpfc_sli4_hba_unset - Unset the fcoe hba 7248 * @phba: Pointer to HBA context object. 7249 * 7250 * This function is called in the SLI4 code path to reset the HBA's FCoE 7251 * function. The caller is not required to hold any lock. This routine 7252 * issues PCI function reset mailbox command to reset the FCoE function. 7253 * At the end of the function, it calls lpfc_hba_down_post function to 7254 * free any pending commands. 7255 **/ 7256 static void 7257 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 7258 { 7259 int wait_cnt = 0; 7260 LPFC_MBOXQ_t *mboxq; 7261 7262 lpfc_stop_hba_timers(phba); 7263 phba->sli4_hba.intr_enable = 0; 7264 7265 /* 7266 * Gracefully wait out the potential current outstanding asynchronous 7267 * mailbox command. 7268 */ 7269 7270 /* First, block any pending async mailbox command from posted */ 7271 spin_lock_irq(&phba->hbalock); 7272 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 7273 spin_unlock_irq(&phba->hbalock); 7274 /* Now, trying to wait it out if we can */ 7275 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7276 msleep(10); 7277 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 7278 break; 7279 } 7280 /* Forcefully release the outstanding mailbox command if timed out */ 7281 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7282 spin_lock_irq(&phba->hbalock); 7283 mboxq = phba->sli.mbox_active; 7284 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 7285 __lpfc_mbox_cmpl_put(phba, mboxq); 7286 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 7287 phba->sli.mbox_active = NULL; 7288 spin_unlock_irq(&phba->hbalock); 7289 } 7290 7291 /* Tear down the queues in the HBA */ 7292 lpfc_sli4_queue_unset(phba); 7293 7294 /* Disable PCI subsystem interrupt */ 7295 lpfc_sli4_disable_intr(phba); 7296 7297 /* Stop kthread signal shall trigger work_done one more time */ 7298 kthread_stop(phba->worker_thread); 7299 7300 /* Stop the SLI4 device port */ 7301 phba->pport->work_port_events = 0; 7302 } 7303 7304 /** 7305 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 7306 * @phba: Pointer to HBA context object. 7307 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 7308 * 7309 * This function is called in the SLI4 code path to read the port's 7310 * sli4 capabilities. 7311 * 7312 * This function may be be called from any context that can block-wait 7313 * for the completion. The expectation is that this routine is called 7314 * typically from probe_one or from the online routine. 7315 **/ 7316 int 7317 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 7318 { 7319 int rc; 7320 struct lpfc_mqe *mqe; 7321 struct lpfc_pc_sli4_params *sli4_params; 7322 uint32_t mbox_tmo; 7323 7324 rc = 0; 7325 mqe = &mboxq->u.mqe; 7326 7327 /* Read the port's SLI4 Parameters port capabilities */ 7328 lpfc_sli4_params(mboxq); 7329 if (!phba->sli4_hba.intr_enable) 7330 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7331 else { 7332 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES); 7333 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7334 } 7335 7336 if (unlikely(rc)) 7337 return 1; 7338 7339 sli4_params = &phba->sli4_hba.pc_sli4_params; 7340 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 7341 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 7342 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 7343 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 7344 &mqe->un.sli4_params); 7345 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 7346 &mqe->un.sli4_params); 7347 sli4_params->proto_types = mqe->un.sli4_params.word3; 7348 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 7349 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 7350 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 7351 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 7352 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 7353 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 7354 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 7355 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 7356 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 7357 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 7358 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 7359 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 7360 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 7361 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 7362 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 7363 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 7364 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 7365 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 7366 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 7367 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 7368 return rc; 7369 } 7370 7371 /** 7372 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 7373 * @pdev: pointer to PCI device 7374 * @pid: pointer to PCI device identifier 7375 * 7376 * This routine is to be called to attach a device with SLI-3 interface spec 7377 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 7378 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 7379 * information of the device and driver to see if the driver state that it can 7380 * support this kind of device. If the match is successful, the driver core 7381 * invokes this routine. If this routine determines it can claim the HBA, it 7382 * does all the initialization that it needs to do to handle the HBA properly. 7383 * 7384 * Return code 7385 * 0 - driver can claim the device 7386 * negative value - driver can not claim the device 7387 **/ 7388 static int __devinit 7389 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 7390 { 7391 struct lpfc_hba *phba; 7392 struct lpfc_vport *vport = NULL; 7393 struct Scsi_Host *shost = NULL; 7394 int error; 7395 uint32_t cfg_mode, intr_mode; 7396 7397 /* Allocate memory for HBA structure */ 7398 phba = lpfc_hba_alloc(pdev); 7399 if (!phba) 7400 return -ENOMEM; 7401 7402 /* Perform generic PCI device enabling operation */ 7403 error = lpfc_enable_pci_dev(phba); 7404 if (error) { 7405 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7406 "1401 Failed to enable pci device.\n"); 7407 goto out_free_phba; 7408 } 7409 7410 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 7411 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 7412 if (error) 7413 goto out_disable_pci_dev; 7414 7415 /* Set up SLI-3 specific device PCI memory space */ 7416 error = lpfc_sli_pci_mem_setup(phba); 7417 if (error) { 7418 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7419 "1402 Failed to set up pci memory space.\n"); 7420 goto out_disable_pci_dev; 7421 } 7422 7423 /* Set up phase-1 common device driver resources */ 7424 error = lpfc_setup_driver_resource_phase1(phba); 7425 if (error) { 7426 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7427 "1403 Failed to set up driver resource.\n"); 7428 goto out_unset_pci_mem_s3; 7429 } 7430 7431 /* Set up SLI-3 specific device driver resources */ 7432 error = lpfc_sli_driver_resource_setup(phba); 7433 if (error) { 7434 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7435 "1404 Failed to set up driver resource.\n"); 7436 goto out_unset_pci_mem_s3; 7437 } 7438 7439 /* Initialize and populate the iocb list per host */ 7440 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 7441 if (error) { 7442 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7443 "1405 Failed to initialize iocb list.\n"); 7444 goto out_unset_driver_resource_s3; 7445 } 7446 7447 /* Set up common device driver resources */ 7448 error = lpfc_setup_driver_resource_phase2(phba); 7449 if (error) { 7450 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7451 "1406 Failed to set up driver resource.\n"); 7452 goto out_free_iocb_list; 7453 } 7454 7455 /* Create SCSI host to the physical port */ 7456 error = lpfc_create_shost(phba); 7457 if (error) { 7458 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7459 "1407 Failed to create scsi host.\n"); 7460 goto out_unset_driver_resource; 7461 } 7462 7463 /* Configure sysfs attributes */ 7464 vport = phba->pport; 7465 error = lpfc_alloc_sysfs_attr(vport); 7466 if (error) { 7467 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7468 "1476 Failed to allocate sysfs attr\n"); 7469 goto out_destroy_shost; 7470 } 7471 7472 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 7473 /* Now, trying to enable interrupt and bring up the device */ 7474 cfg_mode = phba->cfg_use_msi; 7475 while (true) { 7476 /* Put device to a known state before enabling interrupt */ 7477 lpfc_stop_port(phba); 7478 /* Configure and enable interrupt */ 7479 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 7480 if (intr_mode == LPFC_INTR_ERROR) { 7481 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7482 "0431 Failed to enable interrupt.\n"); 7483 error = -ENODEV; 7484 goto out_free_sysfs_attr; 7485 } 7486 /* SLI-3 HBA setup */ 7487 if (lpfc_sli_hba_setup(phba)) { 7488 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7489 "1477 Failed to set up hba\n"); 7490 error = -ENODEV; 7491 goto out_remove_device; 7492 } 7493 7494 /* Wait 50ms for the interrupts of previous mailbox commands */ 7495 msleep(50); 7496 /* Check active interrupts on message signaled interrupts */ 7497 if (intr_mode == 0 || 7498 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 7499 /* Log the current active interrupt mode */ 7500 phba->intr_mode = intr_mode; 7501 lpfc_log_intr_mode(phba, intr_mode); 7502 break; 7503 } else { 7504 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7505 "0447 Configure interrupt mode (%d) " 7506 "failed active interrupt test.\n", 7507 intr_mode); 7508 /* Disable the current interrupt mode */ 7509 lpfc_sli_disable_intr(phba); 7510 /* Try next level of interrupt mode */ 7511 cfg_mode = --intr_mode; 7512 } 7513 } 7514 7515 /* Perform post initialization setup */ 7516 lpfc_post_init_setup(phba); 7517 7518 /* Check if there are static vports to be created. */ 7519 lpfc_create_static_vport(phba); 7520 7521 return 0; 7522 7523 out_remove_device: 7524 lpfc_unset_hba(phba); 7525 out_free_sysfs_attr: 7526 lpfc_free_sysfs_attr(vport); 7527 out_destroy_shost: 7528 lpfc_destroy_shost(phba); 7529 out_unset_driver_resource: 7530 lpfc_unset_driver_resource_phase2(phba); 7531 out_free_iocb_list: 7532 lpfc_free_iocb_list(phba); 7533 out_unset_driver_resource_s3: 7534 lpfc_sli_driver_resource_unset(phba); 7535 out_unset_pci_mem_s3: 7536 lpfc_sli_pci_mem_unset(phba); 7537 out_disable_pci_dev: 7538 lpfc_disable_pci_dev(phba); 7539 if (shost) 7540 scsi_host_put(shost); 7541 out_free_phba: 7542 lpfc_hba_free(phba); 7543 return error; 7544 } 7545 7546 /** 7547 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 7548 * @pdev: pointer to PCI device 7549 * 7550 * This routine is to be called to disattach a device with SLI-3 interface 7551 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 7552 * removed from PCI bus, it performs all the necessary cleanup for the HBA 7553 * device to be removed from the PCI subsystem properly. 7554 **/ 7555 static void __devexit 7556 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 7557 { 7558 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7559 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7560 struct lpfc_vport **vports; 7561 struct lpfc_hba *phba = vport->phba; 7562 int i; 7563 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 7564 7565 spin_lock_irq(&phba->hbalock); 7566 vport->load_flag |= FC_UNLOADING; 7567 spin_unlock_irq(&phba->hbalock); 7568 7569 lpfc_free_sysfs_attr(vport); 7570 7571 /* Release all the vports against this physical port */ 7572 vports = lpfc_create_vport_work_array(phba); 7573 if (vports != NULL) 7574 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 7575 fc_vport_terminate(vports[i]->fc_vport); 7576 lpfc_destroy_vport_work_array(phba, vports); 7577 7578 /* Remove FC host and then SCSI host with the physical port */ 7579 fc_remove_host(shost); 7580 scsi_remove_host(shost); 7581 lpfc_cleanup(vport); 7582 7583 /* 7584 * Bring down the SLI Layer. This step disable all interrupts, 7585 * clears the rings, discards all mailbox commands, and resets 7586 * the HBA. 7587 */ 7588 7589 /* HBA interrupt will be diabled after this call */ 7590 lpfc_sli_hba_down(phba); 7591 /* Stop kthread signal shall trigger work_done one more time */ 7592 kthread_stop(phba->worker_thread); 7593 /* Final cleanup of txcmplq and reset the HBA */ 7594 lpfc_sli_brdrestart(phba); 7595 7596 lpfc_stop_hba_timers(phba); 7597 spin_lock_irq(&phba->hbalock); 7598 list_del_init(&vport->listentry); 7599 spin_unlock_irq(&phba->hbalock); 7600 7601 lpfc_debugfs_terminate(vport); 7602 7603 /* Disable interrupt */ 7604 lpfc_sli_disable_intr(phba); 7605 7606 pci_set_drvdata(pdev, NULL); 7607 scsi_host_put(shost); 7608 7609 /* 7610 * Call scsi_free before mem_free since scsi bufs are released to their 7611 * corresponding pools here. 7612 */ 7613 lpfc_scsi_free(phba); 7614 lpfc_mem_free_all(phba); 7615 7616 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7617 phba->hbqslimp.virt, phba->hbqslimp.phys); 7618 7619 /* Free resources associated with SLI2 interface */ 7620 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7621 phba->slim2p.virt, phba->slim2p.phys); 7622 7623 /* unmap adapter SLIM and Control Registers */ 7624 iounmap(phba->ctrl_regs_memmap_p); 7625 iounmap(phba->slim_memmap_p); 7626 7627 lpfc_hba_free(phba); 7628 7629 pci_release_selected_regions(pdev, bars); 7630 pci_disable_device(pdev); 7631 } 7632 7633 /** 7634 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 7635 * @pdev: pointer to PCI device 7636 * @msg: power management message 7637 * 7638 * This routine is to be called from the kernel's PCI subsystem to support 7639 * system Power Management (PM) to device with SLI-3 interface spec. When 7640 * PM invokes this method, it quiesces the device by stopping the driver's 7641 * worker thread for the device, turning off device's interrupt and DMA, 7642 * and bring the device offline. Note that as the driver implements the 7643 * minimum PM requirements to a power-aware driver's PM support for the 7644 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 7645 * to the suspend() method call will be treated as SUSPEND and the driver will 7646 * fully reinitialize its device during resume() method call, the driver will 7647 * set device to PCI_D3hot state in PCI config space instead of setting it 7648 * according to the @msg provided by the PM. 7649 * 7650 * Return code 7651 * 0 - driver suspended the device 7652 * Error otherwise 7653 **/ 7654 static int 7655 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 7656 { 7657 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7658 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7659 7660 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7661 "0473 PCI device Power Management suspend.\n"); 7662 7663 /* Bring down the device */ 7664 lpfc_offline_prep(phba); 7665 lpfc_offline(phba); 7666 kthread_stop(phba->worker_thread); 7667 7668 /* Disable interrupt from device */ 7669 lpfc_sli_disable_intr(phba); 7670 7671 /* Save device state to PCI config space */ 7672 pci_save_state(pdev); 7673 pci_set_power_state(pdev, PCI_D3hot); 7674 7675 return 0; 7676 } 7677 7678 /** 7679 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 7680 * @pdev: pointer to PCI device 7681 * 7682 * This routine is to be called from the kernel's PCI subsystem to support 7683 * system Power Management (PM) to device with SLI-3 interface spec. When PM 7684 * invokes this method, it restores the device's PCI config space state and 7685 * fully reinitializes the device and brings it online. Note that as the 7686 * driver implements the minimum PM requirements to a power-aware driver's 7687 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 7688 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 7689 * driver will fully reinitialize its device during resume() method call, 7690 * the device will be set to PCI_D0 directly in PCI config space before 7691 * restoring the state. 7692 * 7693 * Return code 7694 * 0 - driver suspended the device 7695 * Error otherwise 7696 **/ 7697 static int 7698 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 7699 { 7700 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7701 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7702 uint32_t intr_mode; 7703 int error; 7704 7705 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7706 "0452 PCI device Power Management resume.\n"); 7707 7708 /* Restore device state from PCI config space */ 7709 pci_set_power_state(pdev, PCI_D0); 7710 pci_restore_state(pdev); 7711 7712 /* 7713 * As the new kernel behavior of pci_restore_state() API call clears 7714 * device saved_state flag, need to save the restored state again. 7715 */ 7716 pci_save_state(pdev); 7717 7718 if (pdev->is_busmaster) 7719 pci_set_master(pdev); 7720 7721 /* Startup the kernel thread for this host adapter. */ 7722 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7723 "lpfc_worker_%d", phba->brd_no); 7724 if (IS_ERR(phba->worker_thread)) { 7725 error = PTR_ERR(phba->worker_thread); 7726 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7727 "0434 PM resume failed to start worker " 7728 "thread: error=x%x.\n", error); 7729 return error; 7730 } 7731 7732 /* Configure and enable interrupt */ 7733 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7734 if (intr_mode == LPFC_INTR_ERROR) { 7735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7736 "0430 PM resume Failed to enable interrupt\n"); 7737 return -EIO; 7738 } else 7739 phba->intr_mode = intr_mode; 7740 7741 /* Restart HBA and bring it online */ 7742 lpfc_sli_brdrestart(phba); 7743 lpfc_online(phba); 7744 7745 /* Log the current active interrupt mode */ 7746 lpfc_log_intr_mode(phba, phba->intr_mode); 7747 7748 return 0; 7749 } 7750 7751 /** 7752 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 7753 * @phba: pointer to lpfc hba data structure. 7754 * 7755 * This routine is called to prepare the SLI3 device for PCI slot recover. It 7756 * aborts and stops all the on-going I/Os on the pci device. 7757 **/ 7758 static void 7759 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 7760 { 7761 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7762 "2723 PCI channel I/O abort preparing for recovery\n"); 7763 /* Prepare for bringing HBA offline */ 7764 lpfc_offline_prep(phba); 7765 /* Clear sli active flag to prevent sysfs access to HBA */ 7766 spin_lock_irq(&phba->hbalock); 7767 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE; 7768 spin_unlock_irq(&phba->hbalock); 7769 /* Stop and flush all I/Os and bring HBA offline */ 7770 lpfc_offline(phba); 7771 } 7772 7773 /** 7774 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 7775 * @phba: pointer to lpfc hba data structure. 7776 * 7777 * This routine is called to prepare the SLI3 device for PCI slot reset. It 7778 * disables the device interrupt and pci device, and aborts the internal FCP 7779 * pending I/Os. 7780 **/ 7781 static void 7782 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 7783 { 7784 struct lpfc_sli *psli = &phba->sli; 7785 struct lpfc_sli_ring *pring; 7786 7787 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7788 "2710 PCI channel disable preparing for reset\n"); 7789 /* Disable interrupt and pci device */ 7790 lpfc_sli_disable_intr(phba); 7791 pci_disable_device(phba->pcidev); 7792 /* 7793 * There may be I/Os dropped by the firmware. 7794 * Error iocb (I/O) on txcmplq and let the SCSI layer 7795 * retry it after re-establishing link. 7796 */ 7797 pring = &psli->ring[psli->fcp_ring]; 7798 lpfc_sli_abort_iocb_ring(phba, pring); 7799 } 7800 7801 /** 7802 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 7803 * @phba: pointer to lpfc hba data structure. 7804 * 7805 * This routine is called to prepare the SLI3 device for PCI slot permanently 7806 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 7807 * pending I/Os. 7808 **/ 7809 static void 7810 lpfc_prep_dev_for_perm_failure(struct lpfc_hba *phba) 7811 { 7812 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7813 "2711 PCI channel permanent disable for failure\n"); 7814 /* Clean up all driver's outstanding SCSI I/Os */ 7815 lpfc_sli_flush_fcp_rings(phba); 7816 } 7817 7818 /** 7819 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 7820 * @pdev: pointer to PCI device. 7821 * @state: the current PCI connection state. 7822 * 7823 * This routine is called from the PCI subsystem for I/O error handling to 7824 * device with SLI-3 interface spec. This function is called by the PCI 7825 * subsystem after a PCI bus error affecting this device has been detected. 7826 * When this function is invoked, it will need to stop all the I/Os and 7827 * interrupt(s) to the device. Once that is done, it will return 7828 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 7829 * as desired. 7830 * 7831 * Return codes 7832 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 7833 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7834 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7835 **/ 7836 static pci_ers_result_t 7837 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 7838 { 7839 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7840 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7841 7842 /* Block all SCSI devices' I/Os on the host */ 7843 lpfc_scsi_dev_block(phba); 7844 7845 switch (state) { 7846 case pci_channel_io_normal: 7847 /* Non-fatal error, prepare for recovery */ 7848 lpfc_sli_prep_dev_for_recover(phba); 7849 return PCI_ERS_RESULT_CAN_RECOVER; 7850 case pci_channel_io_frozen: 7851 /* Fatal error, prepare for slot reset */ 7852 lpfc_sli_prep_dev_for_reset(phba); 7853 return PCI_ERS_RESULT_NEED_RESET; 7854 case pci_channel_io_perm_failure: 7855 /* Permanent failure, prepare for device down */ 7856 lpfc_prep_dev_for_perm_failure(phba); 7857 return PCI_ERS_RESULT_DISCONNECT; 7858 default: 7859 /* Unknown state, prepare and request slot reset */ 7860 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7861 "0472 Unknown PCI error state: x%x\n", state); 7862 lpfc_sli_prep_dev_for_reset(phba); 7863 return PCI_ERS_RESULT_NEED_RESET; 7864 } 7865 } 7866 7867 /** 7868 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 7869 * @pdev: pointer to PCI device. 7870 * 7871 * This routine is called from the PCI subsystem for error handling to 7872 * device with SLI-3 interface spec. This is called after PCI bus has been 7873 * reset to restart the PCI card from scratch, as if from a cold-boot. 7874 * During the PCI subsystem error recovery, after driver returns 7875 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 7876 * recovery and then call this routine before calling the .resume method 7877 * to recover the device. This function will initialize the HBA device, 7878 * enable the interrupt, but it will just put the HBA to offline state 7879 * without passing any I/O traffic. 7880 * 7881 * Return codes 7882 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7883 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7884 */ 7885 static pci_ers_result_t 7886 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 7887 { 7888 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7889 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7890 struct lpfc_sli *psli = &phba->sli; 7891 uint32_t intr_mode; 7892 7893 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 7894 if (pci_enable_device_mem(pdev)) { 7895 printk(KERN_ERR "lpfc: Cannot re-enable " 7896 "PCI device after reset.\n"); 7897 return PCI_ERS_RESULT_DISCONNECT; 7898 } 7899 7900 pci_restore_state(pdev); 7901 7902 /* 7903 * As the new kernel behavior of pci_restore_state() API call clears 7904 * device saved_state flag, need to save the restored state again. 7905 */ 7906 pci_save_state(pdev); 7907 7908 if (pdev->is_busmaster) 7909 pci_set_master(pdev); 7910 7911 spin_lock_irq(&phba->hbalock); 7912 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 7913 spin_unlock_irq(&phba->hbalock); 7914 7915 /* Configure and enable interrupt */ 7916 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7917 if (intr_mode == LPFC_INTR_ERROR) { 7918 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7919 "0427 Cannot re-enable interrupt after " 7920 "slot reset.\n"); 7921 return PCI_ERS_RESULT_DISCONNECT; 7922 } else 7923 phba->intr_mode = intr_mode; 7924 7925 /* Take device offline; this will perform cleanup */ 7926 lpfc_offline(phba); 7927 lpfc_sli_brdrestart(phba); 7928 7929 /* Log the current active interrupt mode */ 7930 lpfc_log_intr_mode(phba, phba->intr_mode); 7931 7932 return PCI_ERS_RESULT_RECOVERED; 7933 } 7934 7935 /** 7936 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 7937 * @pdev: pointer to PCI device 7938 * 7939 * This routine is called from the PCI subsystem for error handling to device 7940 * with SLI-3 interface spec. It is called when kernel error recovery tells 7941 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 7942 * error recovery. After this call, traffic can start to flow from this device 7943 * again. 7944 */ 7945 static void 7946 lpfc_io_resume_s3(struct pci_dev *pdev) 7947 { 7948 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7949 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7950 7951 /* Bring the device online */ 7952 lpfc_online(phba); 7953 7954 /* Clean up Advanced Error Reporting (AER) if needed */ 7955 if (phba->hba_flag & HBA_AER_ENABLED) 7956 pci_cleanup_aer_uncorrect_error_status(pdev); 7957 } 7958 7959 /** 7960 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 7961 * @phba: pointer to lpfc hba data structure. 7962 * 7963 * returns the number of ELS/CT IOCBs to reserve 7964 **/ 7965 int 7966 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 7967 { 7968 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 7969 7970 if (phba->sli_rev == LPFC_SLI_REV4) { 7971 if (max_xri <= 100) 7972 return 10; 7973 else if (max_xri <= 256) 7974 return 25; 7975 else if (max_xri <= 512) 7976 return 50; 7977 else if (max_xri <= 1024) 7978 return 100; 7979 else 7980 return 150; 7981 } else 7982 return 0; 7983 } 7984 7985 /** 7986 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 7987 * @pdev: pointer to PCI device 7988 * @pid: pointer to PCI device identifier 7989 * 7990 * This routine is called from the kernel's PCI subsystem to device with 7991 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 7992 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 7993 * information of the device and driver to see if the driver state that it 7994 * can support this kind of device. If the match is successful, the driver 7995 * core invokes this routine. If this routine determines it can claim the HBA, 7996 * it does all the initialization that it needs to do to handle the HBA 7997 * properly. 7998 * 7999 * Return code 8000 * 0 - driver can claim the device 8001 * negative value - driver can not claim the device 8002 **/ 8003 static int __devinit 8004 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 8005 { 8006 struct lpfc_hba *phba; 8007 struct lpfc_vport *vport = NULL; 8008 struct Scsi_Host *shost = NULL; 8009 int error; 8010 uint32_t cfg_mode, intr_mode; 8011 int mcnt; 8012 8013 /* Allocate memory for HBA structure */ 8014 phba = lpfc_hba_alloc(pdev); 8015 if (!phba) 8016 return -ENOMEM; 8017 8018 /* Perform generic PCI device enabling operation */ 8019 error = lpfc_enable_pci_dev(phba); 8020 if (error) { 8021 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8022 "1409 Failed to enable pci device.\n"); 8023 goto out_free_phba; 8024 } 8025 8026 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 8027 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 8028 if (error) 8029 goto out_disable_pci_dev; 8030 8031 /* Set up SLI-4 specific device PCI memory space */ 8032 error = lpfc_sli4_pci_mem_setup(phba); 8033 if (error) { 8034 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8035 "1410 Failed to set up pci memory space.\n"); 8036 goto out_disable_pci_dev; 8037 } 8038 8039 /* Set up phase-1 common device driver resources */ 8040 error = lpfc_setup_driver_resource_phase1(phba); 8041 if (error) { 8042 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8043 "1411 Failed to set up driver resource.\n"); 8044 goto out_unset_pci_mem_s4; 8045 } 8046 8047 /* Set up SLI-4 Specific device driver resources */ 8048 error = lpfc_sli4_driver_resource_setup(phba); 8049 if (error) { 8050 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8051 "1412 Failed to set up driver resource.\n"); 8052 goto out_unset_pci_mem_s4; 8053 } 8054 8055 /* Initialize and populate the iocb list per host */ 8056 error = lpfc_init_iocb_list(phba, 8057 phba->sli4_hba.max_cfg_param.max_xri); 8058 if (error) { 8059 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8060 "1413 Failed to initialize iocb list.\n"); 8061 goto out_unset_driver_resource_s4; 8062 } 8063 8064 /* Set up common device driver resources */ 8065 error = lpfc_setup_driver_resource_phase2(phba); 8066 if (error) { 8067 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8068 "1414 Failed to set up driver resource.\n"); 8069 goto out_free_iocb_list; 8070 } 8071 8072 /* Create SCSI host to the physical port */ 8073 error = lpfc_create_shost(phba); 8074 if (error) { 8075 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8076 "1415 Failed to create scsi host.\n"); 8077 goto out_unset_driver_resource; 8078 } 8079 8080 /* Configure sysfs attributes */ 8081 vport = phba->pport; 8082 error = lpfc_alloc_sysfs_attr(vport); 8083 if (error) { 8084 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8085 "1416 Failed to allocate sysfs attr\n"); 8086 goto out_destroy_shost; 8087 } 8088 8089 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8090 /* Now, trying to enable interrupt and bring up the device */ 8091 cfg_mode = phba->cfg_use_msi; 8092 while (true) { 8093 /* Put device to a known state before enabling interrupt */ 8094 lpfc_stop_port(phba); 8095 /* Configure and enable interrupt */ 8096 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 8097 if (intr_mode == LPFC_INTR_ERROR) { 8098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8099 "0426 Failed to enable interrupt.\n"); 8100 error = -ENODEV; 8101 goto out_free_sysfs_attr; 8102 } 8103 /* Default to single FCP EQ for non-MSI-X */ 8104 if (phba->intr_type != MSIX) 8105 phba->cfg_fcp_eq_count = 1; 8106 /* Set up SLI-4 HBA */ 8107 if (lpfc_sli4_hba_setup(phba)) { 8108 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8109 "1421 Failed to set up hba\n"); 8110 error = -ENODEV; 8111 goto out_disable_intr; 8112 } 8113 8114 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 8115 if (intr_mode != 0) 8116 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 8117 LPFC_ACT_INTR_CNT); 8118 8119 /* Check active interrupts received only for MSI/MSI-X */ 8120 if (intr_mode == 0 || 8121 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 8122 /* Log the current active interrupt mode */ 8123 phba->intr_mode = intr_mode; 8124 lpfc_log_intr_mode(phba, intr_mode); 8125 break; 8126 } 8127 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8128 "0451 Configure interrupt mode (%d) " 8129 "failed active interrupt test.\n", 8130 intr_mode); 8131 /* Unset the preivous SLI-4 HBA setup */ 8132 lpfc_sli4_unset_hba(phba); 8133 /* Try next level of interrupt mode */ 8134 cfg_mode = --intr_mode; 8135 } 8136 8137 /* Perform post initialization setup */ 8138 lpfc_post_init_setup(phba); 8139 8140 /* Check if there are static vports to be created. */ 8141 lpfc_create_static_vport(phba); 8142 8143 return 0; 8144 8145 out_disable_intr: 8146 lpfc_sli4_disable_intr(phba); 8147 out_free_sysfs_attr: 8148 lpfc_free_sysfs_attr(vport); 8149 out_destroy_shost: 8150 lpfc_destroy_shost(phba); 8151 out_unset_driver_resource: 8152 lpfc_unset_driver_resource_phase2(phba); 8153 out_free_iocb_list: 8154 lpfc_free_iocb_list(phba); 8155 out_unset_driver_resource_s4: 8156 lpfc_sli4_driver_resource_unset(phba); 8157 out_unset_pci_mem_s4: 8158 lpfc_sli4_pci_mem_unset(phba); 8159 out_disable_pci_dev: 8160 lpfc_disable_pci_dev(phba); 8161 if (shost) 8162 scsi_host_put(shost); 8163 out_free_phba: 8164 lpfc_hba_free(phba); 8165 return error; 8166 } 8167 8168 /** 8169 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 8170 * @pdev: pointer to PCI device 8171 * 8172 * This routine is called from the kernel's PCI subsystem to device with 8173 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8174 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8175 * device to be removed from the PCI subsystem properly. 8176 **/ 8177 static void __devexit 8178 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 8179 { 8180 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8181 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8182 struct lpfc_vport **vports; 8183 struct lpfc_hba *phba = vport->phba; 8184 int i; 8185 8186 /* Mark the device unloading flag */ 8187 spin_lock_irq(&phba->hbalock); 8188 vport->load_flag |= FC_UNLOADING; 8189 spin_unlock_irq(&phba->hbalock); 8190 8191 /* Free the HBA sysfs attributes */ 8192 lpfc_free_sysfs_attr(vport); 8193 8194 /* Release all the vports against this physical port */ 8195 vports = lpfc_create_vport_work_array(phba); 8196 if (vports != NULL) 8197 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 8198 fc_vport_terminate(vports[i]->fc_vport); 8199 lpfc_destroy_vport_work_array(phba, vports); 8200 8201 /* Remove FC host and then SCSI host with the physical port */ 8202 fc_remove_host(shost); 8203 scsi_remove_host(shost); 8204 8205 /* Perform cleanup on the physical port */ 8206 lpfc_cleanup(vport); 8207 8208 /* 8209 * Bring down the SLI Layer. This step disables all interrupts, 8210 * clears the rings, discards all mailbox commands, and resets 8211 * the HBA FCoE function. 8212 */ 8213 lpfc_debugfs_terminate(vport); 8214 lpfc_sli4_hba_unset(phba); 8215 8216 spin_lock_irq(&phba->hbalock); 8217 list_del_init(&vport->listentry); 8218 spin_unlock_irq(&phba->hbalock); 8219 8220 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi 8221 * buffers are released to their corresponding pools here. 8222 */ 8223 lpfc_scsi_free(phba); 8224 lpfc_sli4_driver_resource_unset(phba); 8225 8226 /* Unmap adapter Control and Doorbell registers */ 8227 lpfc_sli4_pci_mem_unset(phba); 8228 8229 /* Release PCI resources and disable device's PCI function */ 8230 scsi_host_put(shost); 8231 lpfc_disable_pci_dev(phba); 8232 8233 /* Finally, free the driver's device data structure */ 8234 lpfc_hba_free(phba); 8235 8236 return; 8237 } 8238 8239 /** 8240 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 8241 * @pdev: pointer to PCI device 8242 * @msg: power management message 8243 * 8244 * This routine is called from the kernel's PCI subsystem to support system 8245 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 8246 * this method, it quiesces the device by stopping the driver's worker 8247 * thread for the device, turning off device's interrupt and DMA, and bring 8248 * the device offline. Note that as the driver implements the minimum PM 8249 * requirements to a power-aware driver's PM support for suspend/resume -- all 8250 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 8251 * method call will be treated as SUSPEND and the driver will fully 8252 * reinitialize its device during resume() method call, the driver will set 8253 * device to PCI_D3hot state in PCI config space instead of setting it 8254 * according to the @msg provided by the PM. 8255 * 8256 * Return code 8257 * 0 - driver suspended the device 8258 * Error otherwise 8259 **/ 8260 static int 8261 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 8262 { 8263 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8264 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8265 8266 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8267 "0298 PCI device Power Management suspend.\n"); 8268 8269 /* Bring down the device */ 8270 lpfc_offline_prep(phba); 8271 lpfc_offline(phba); 8272 kthread_stop(phba->worker_thread); 8273 8274 /* Disable interrupt from device */ 8275 lpfc_sli4_disable_intr(phba); 8276 8277 /* Save device state to PCI config space */ 8278 pci_save_state(pdev); 8279 pci_set_power_state(pdev, PCI_D3hot); 8280 8281 return 0; 8282 } 8283 8284 /** 8285 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 8286 * @pdev: pointer to PCI device 8287 * 8288 * This routine is called from the kernel's PCI subsystem to support system 8289 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 8290 * this method, it restores the device's PCI config space state and fully 8291 * reinitializes the device and brings it online. Note that as the driver 8292 * implements the minimum PM requirements to a power-aware driver's PM for 8293 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8294 * to the suspend() method call will be treated as SUSPEND and the driver 8295 * will fully reinitialize its device during resume() method call, the device 8296 * will be set to PCI_D0 directly in PCI config space before restoring the 8297 * state. 8298 * 8299 * Return code 8300 * 0 - driver suspended the device 8301 * Error otherwise 8302 **/ 8303 static int 8304 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 8305 { 8306 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8307 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8308 uint32_t intr_mode; 8309 int error; 8310 8311 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8312 "0292 PCI device Power Management resume.\n"); 8313 8314 /* Restore device state from PCI config space */ 8315 pci_set_power_state(pdev, PCI_D0); 8316 pci_restore_state(pdev); 8317 8318 /* 8319 * As the new kernel behavior of pci_restore_state() API call clears 8320 * device saved_state flag, need to save the restored state again. 8321 */ 8322 pci_save_state(pdev); 8323 8324 if (pdev->is_busmaster) 8325 pci_set_master(pdev); 8326 8327 /* Startup the kernel thread for this host adapter. */ 8328 phba->worker_thread = kthread_run(lpfc_do_work, phba, 8329 "lpfc_worker_%d", phba->brd_no); 8330 if (IS_ERR(phba->worker_thread)) { 8331 error = PTR_ERR(phba->worker_thread); 8332 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8333 "0293 PM resume failed to start worker " 8334 "thread: error=x%x.\n", error); 8335 return error; 8336 } 8337 8338 /* Configure and enable interrupt */ 8339 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 8340 if (intr_mode == LPFC_INTR_ERROR) { 8341 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8342 "0294 PM resume Failed to enable interrupt\n"); 8343 return -EIO; 8344 } else 8345 phba->intr_mode = intr_mode; 8346 8347 /* Restart HBA and bring it online */ 8348 lpfc_sli_brdrestart(phba); 8349 lpfc_online(phba); 8350 8351 /* Log the current active interrupt mode */ 8352 lpfc_log_intr_mode(phba, phba->intr_mode); 8353 8354 return 0; 8355 } 8356 8357 /** 8358 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 8359 * @pdev: pointer to PCI device. 8360 * @state: the current PCI connection state. 8361 * 8362 * This routine is called from the PCI subsystem for error handling to device 8363 * with SLI-4 interface spec. This function is called by the PCI subsystem 8364 * after a PCI bus error affecting this device has been detected. When this 8365 * function is invoked, it will need to stop all the I/Os and interrupt(s) 8366 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 8367 * for the PCI subsystem to perform proper recovery as desired. 8368 * 8369 * Return codes 8370 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8371 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8372 **/ 8373 static pci_ers_result_t 8374 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 8375 { 8376 return PCI_ERS_RESULT_NEED_RESET; 8377 } 8378 8379 /** 8380 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 8381 * @pdev: pointer to PCI device. 8382 * 8383 * This routine is called from the PCI subsystem for error handling to device 8384 * with SLI-4 interface spec. It is called after PCI bus has been reset to 8385 * restart the PCI card from scratch, as if from a cold-boot. During the 8386 * PCI subsystem error recovery, after the driver returns 8387 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 8388 * recovery and then call this routine before calling the .resume method to 8389 * recover the device. This function will initialize the HBA device, enable 8390 * the interrupt, but it will just put the HBA to offline state without 8391 * passing any I/O traffic. 8392 * 8393 * Return codes 8394 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8395 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8396 */ 8397 static pci_ers_result_t 8398 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 8399 { 8400 return PCI_ERS_RESULT_RECOVERED; 8401 } 8402 8403 /** 8404 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 8405 * @pdev: pointer to PCI device 8406 * 8407 * This routine is called from the PCI subsystem for error handling to device 8408 * with SLI-4 interface spec. It is called when kernel error recovery tells 8409 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8410 * error recovery. After this call, traffic can start to flow from this device 8411 * again. 8412 **/ 8413 static void 8414 lpfc_io_resume_s4(struct pci_dev *pdev) 8415 { 8416 return; 8417 } 8418 8419 /** 8420 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 8421 * @pdev: pointer to PCI device 8422 * @pid: pointer to PCI device identifier 8423 * 8424 * This routine is to be registered to the kernel's PCI subsystem. When an 8425 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 8426 * at PCI device-specific information of the device and driver to see if the 8427 * driver state that it can support this kind of device. If the match is 8428 * successful, the driver core invokes this routine. This routine dispatches 8429 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 8430 * do all the initialization that it needs to do to handle the HBA device 8431 * properly. 8432 * 8433 * Return code 8434 * 0 - driver can claim the device 8435 * negative value - driver can not claim the device 8436 **/ 8437 static int __devinit 8438 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 8439 { 8440 int rc; 8441 struct lpfc_sli_intf intf; 8442 8443 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 8444 return -ENODEV; 8445 8446 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 8447 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 8448 rc = lpfc_pci_probe_one_s4(pdev, pid); 8449 else 8450 rc = lpfc_pci_probe_one_s3(pdev, pid); 8451 8452 return rc; 8453 } 8454 8455 /** 8456 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 8457 * @pdev: pointer to PCI device 8458 * 8459 * This routine is to be registered to the kernel's PCI subsystem. When an 8460 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 8461 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 8462 * remove routine, which will perform all the necessary cleanup for the 8463 * device to be removed from the PCI subsystem properly. 8464 **/ 8465 static void __devexit 8466 lpfc_pci_remove_one(struct pci_dev *pdev) 8467 { 8468 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8469 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8470 8471 switch (phba->pci_dev_grp) { 8472 case LPFC_PCI_DEV_LP: 8473 lpfc_pci_remove_one_s3(pdev); 8474 break; 8475 case LPFC_PCI_DEV_OC: 8476 lpfc_pci_remove_one_s4(pdev); 8477 break; 8478 default: 8479 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8480 "1424 Invalid PCI device group: 0x%x\n", 8481 phba->pci_dev_grp); 8482 break; 8483 } 8484 return; 8485 } 8486 8487 /** 8488 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 8489 * @pdev: pointer to PCI device 8490 * @msg: power management message 8491 * 8492 * This routine is to be registered to the kernel's PCI subsystem to support 8493 * system Power Management (PM). When PM invokes this method, it dispatches 8494 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 8495 * suspend the device. 8496 * 8497 * Return code 8498 * 0 - driver suspended the device 8499 * Error otherwise 8500 **/ 8501 static int 8502 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 8503 { 8504 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8505 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8506 int rc = -ENODEV; 8507 8508 switch (phba->pci_dev_grp) { 8509 case LPFC_PCI_DEV_LP: 8510 rc = lpfc_pci_suspend_one_s3(pdev, msg); 8511 break; 8512 case LPFC_PCI_DEV_OC: 8513 rc = lpfc_pci_suspend_one_s4(pdev, msg); 8514 break; 8515 default: 8516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8517 "1425 Invalid PCI device group: 0x%x\n", 8518 phba->pci_dev_grp); 8519 break; 8520 } 8521 return rc; 8522 } 8523 8524 /** 8525 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 8526 * @pdev: pointer to PCI device 8527 * 8528 * This routine is to be registered to the kernel's PCI subsystem to support 8529 * system Power Management (PM). When PM invokes this method, it dispatches 8530 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 8531 * resume the device. 8532 * 8533 * Return code 8534 * 0 - driver suspended the device 8535 * Error otherwise 8536 **/ 8537 static int 8538 lpfc_pci_resume_one(struct pci_dev *pdev) 8539 { 8540 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8541 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8542 int rc = -ENODEV; 8543 8544 switch (phba->pci_dev_grp) { 8545 case LPFC_PCI_DEV_LP: 8546 rc = lpfc_pci_resume_one_s3(pdev); 8547 break; 8548 case LPFC_PCI_DEV_OC: 8549 rc = lpfc_pci_resume_one_s4(pdev); 8550 break; 8551 default: 8552 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8553 "1426 Invalid PCI device group: 0x%x\n", 8554 phba->pci_dev_grp); 8555 break; 8556 } 8557 return rc; 8558 } 8559 8560 /** 8561 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 8562 * @pdev: pointer to PCI device. 8563 * @state: the current PCI connection state. 8564 * 8565 * This routine is registered to the PCI subsystem for error handling. This 8566 * function is called by the PCI subsystem after a PCI bus error affecting 8567 * this device has been detected. When this routine is invoked, it dispatches 8568 * the action to the proper SLI-3 or SLI-4 device error detected handling 8569 * routine, which will perform the proper error detected operation. 8570 * 8571 * Return codes 8572 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8573 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8574 **/ 8575 static pci_ers_result_t 8576 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 8577 { 8578 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8579 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8580 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 8581 8582 switch (phba->pci_dev_grp) { 8583 case LPFC_PCI_DEV_LP: 8584 rc = lpfc_io_error_detected_s3(pdev, state); 8585 break; 8586 case LPFC_PCI_DEV_OC: 8587 rc = lpfc_io_error_detected_s4(pdev, state); 8588 break; 8589 default: 8590 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8591 "1427 Invalid PCI device group: 0x%x\n", 8592 phba->pci_dev_grp); 8593 break; 8594 } 8595 return rc; 8596 } 8597 8598 /** 8599 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 8600 * @pdev: pointer to PCI device. 8601 * 8602 * This routine is registered to the PCI subsystem for error handling. This 8603 * function is called after PCI bus has been reset to restart the PCI card 8604 * from scratch, as if from a cold-boot. When this routine is invoked, it 8605 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 8606 * routine, which will perform the proper device reset. 8607 * 8608 * Return codes 8609 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8610 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8611 **/ 8612 static pci_ers_result_t 8613 lpfc_io_slot_reset(struct pci_dev *pdev) 8614 { 8615 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8616 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8617 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 8618 8619 switch (phba->pci_dev_grp) { 8620 case LPFC_PCI_DEV_LP: 8621 rc = lpfc_io_slot_reset_s3(pdev); 8622 break; 8623 case LPFC_PCI_DEV_OC: 8624 rc = lpfc_io_slot_reset_s4(pdev); 8625 break; 8626 default: 8627 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8628 "1428 Invalid PCI device group: 0x%x\n", 8629 phba->pci_dev_grp); 8630 break; 8631 } 8632 return rc; 8633 } 8634 8635 /** 8636 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 8637 * @pdev: pointer to PCI device 8638 * 8639 * This routine is registered to the PCI subsystem for error handling. It 8640 * is called when kernel error recovery tells the lpfc driver that it is 8641 * OK to resume normal PCI operation after PCI bus error recovery. When 8642 * this routine is invoked, it dispatches the action to the proper SLI-3 8643 * or SLI-4 device io_resume routine, which will resume the device operation. 8644 **/ 8645 static void 8646 lpfc_io_resume(struct pci_dev *pdev) 8647 { 8648 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8649 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8650 8651 switch (phba->pci_dev_grp) { 8652 case LPFC_PCI_DEV_LP: 8653 lpfc_io_resume_s3(pdev); 8654 break; 8655 case LPFC_PCI_DEV_OC: 8656 lpfc_io_resume_s4(pdev); 8657 break; 8658 default: 8659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8660 "1429 Invalid PCI device group: 0x%x\n", 8661 phba->pci_dev_grp); 8662 break; 8663 } 8664 return; 8665 } 8666 8667 static struct pci_device_id lpfc_id_table[] = { 8668 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 8669 PCI_ANY_ID, PCI_ANY_ID, }, 8670 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 8671 PCI_ANY_ID, PCI_ANY_ID, }, 8672 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 8673 PCI_ANY_ID, PCI_ANY_ID, }, 8674 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 8675 PCI_ANY_ID, PCI_ANY_ID, }, 8676 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 8677 PCI_ANY_ID, PCI_ANY_ID, }, 8678 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 8679 PCI_ANY_ID, PCI_ANY_ID, }, 8680 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 8681 PCI_ANY_ID, PCI_ANY_ID, }, 8682 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 8683 PCI_ANY_ID, PCI_ANY_ID, }, 8684 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 8685 PCI_ANY_ID, PCI_ANY_ID, }, 8686 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 8687 PCI_ANY_ID, PCI_ANY_ID, }, 8688 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 8689 PCI_ANY_ID, PCI_ANY_ID, }, 8690 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 8691 PCI_ANY_ID, PCI_ANY_ID, }, 8692 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 8693 PCI_ANY_ID, PCI_ANY_ID, }, 8694 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 8695 PCI_ANY_ID, PCI_ANY_ID, }, 8696 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 8697 PCI_ANY_ID, PCI_ANY_ID, }, 8698 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 8699 PCI_ANY_ID, PCI_ANY_ID, }, 8700 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 8701 PCI_ANY_ID, PCI_ANY_ID, }, 8702 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 8703 PCI_ANY_ID, PCI_ANY_ID, }, 8704 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 8705 PCI_ANY_ID, PCI_ANY_ID, }, 8706 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 8707 PCI_ANY_ID, PCI_ANY_ID, }, 8708 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 8709 PCI_ANY_ID, PCI_ANY_ID, }, 8710 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 8711 PCI_ANY_ID, PCI_ANY_ID, }, 8712 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 8713 PCI_ANY_ID, PCI_ANY_ID, }, 8714 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 8715 PCI_ANY_ID, PCI_ANY_ID, }, 8716 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 8717 PCI_ANY_ID, PCI_ANY_ID, }, 8718 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 8719 PCI_ANY_ID, PCI_ANY_ID, }, 8720 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 8721 PCI_ANY_ID, PCI_ANY_ID, }, 8722 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 8723 PCI_ANY_ID, PCI_ANY_ID, }, 8724 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 8725 PCI_ANY_ID, PCI_ANY_ID, }, 8726 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 8727 PCI_ANY_ID, PCI_ANY_ID, }, 8728 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 8729 PCI_ANY_ID, PCI_ANY_ID, }, 8730 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 8731 PCI_ANY_ID, PCI_ANY_ID, }, 8732 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 8733 PCI_ANY_ID, PCI_ANY_ID, }, 8734 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 8735 PCI_ANY_ID, PCI_ANY_ID, }, 8736 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 8737 PCI_ANY_ID, PCI_ANY_ID, }, 8738 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 8739 PCI_ANY_ID, PCI_ANY_ID, }, 8740 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 8741 PCI_ANY_ID, PCI_ANY_ID, }, 8742 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 8743 PCI_ANY_ID, PCI_ANY_ID, }, 8744 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 8745 PCI_ANY_ID, PCI_ANY_ID, }, 8746 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 8747 PCI_ANY_ID, PCI_ANY_ID, }, 8748 { 0 } 8749 }; 8750 8751 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 8752 8753 static struct pci_error_handlers lpfc_err_handler = { 8754 .error_detected = lpfc_io_error_detected, 8755 .slot_reset = lpfc_io_slot_reset, 8756 .resume = lpfc_io_resume, 8757 }; 8758 8759 static struct pci_driver lpfc_driver = { 8760 .name = LPFC_DRIVER_NAME, 8761 .id_table = lpfc_id_table, 8762 .probe = lpfc_pci_probe_one, 8763 .remove = __devexit_p(lpfc_pci_remove_one), 8764 .suspend = lpfc_pci_suspend_one, 8765 .resume = lpfc_pci_resume_one, 8766 .err_handler = &lpfc_err_handler, 8767 }; 8768 8769 /** 8770 * lpfc_init - lpfc module initialization routine 8771 * 8772 * This routine is to be invoked when the lpfc module is loaded into the 8773 * kernel. The special kernel macro module_init() is used to indicate the 8774 * role of this routine to the kernel as lpfc module entry point. 8775 * 8776 * Return codes 8777 * 0 - successful 8778 * -ENOMEM - FC attach transport failed 8779 * all others - failed 8780 */ 8781 static int __init 8782 lpfc_init(void) 8783 { 8784 int error = 0; 8785 8786 printk(LPFC_MODULE_DESC "\n"); 8787 printk(LPFC_COPYRIGHT "\n"); 8788 8789 if (lpfc_enable_npiv) { 8790 lpfc_transport_functions.vport_create = lpfc_vport_create; 8791 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 8792 } 8793 lpfc_transport_template = 8794 fc_attach_transport(&lpfc_transport_functions); 8795 if (lpfc_transport_template == NULL) 8796 return -ENOMEM; 8797 if (lpfc_enable_npiv) { 8798 lpfc_vport_transport_template = 8799 fc_attach_transport(&lpfc_vport_transport_functions); 8800 if (lpfc_vport_transport_template == NULL) { 8801 fc_release_transport(lpfc_transport_template); 8802 return -ENOMEM; 8803 } 8804 } 8805 error = pci_register_driver(&lpfc_driver); 8806 if (error) { 8807 fc_release_transport(lpfc_transport_template); 8808 if (lpfc_enable_npiv) 8809 fc_release_transport(lpfc_vport_transport_template); 8810 } 8811 8812 return error; 8813 } 8814 8815 /** 8816 * lpfc_exit - lpfc module removal routine 8817 * 8818 * This routine is invoked when the lpfc module is removed from the kernel. 8819 * The special kernel macro module_exit() is used to indicate the role of 8820 * this routine to the kernel as lpfc module exit point. 8821 */ 8822 static void __exit 8823 lpfc_exit(void) 8824 { 8825 pci_unregister_driver(&lpfc_driver); 8826 fc_release_transport(lpfc_transport_template); 8827 if (lpfc_enable_npiv) 8828 fc_release_transport(lpfc_vport_transport_template); 8829 if (_dump_buf_data) { 8830 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 8831 "_dump_buf_data at 0x%p\n", 8832 (1L << _dump_buf_data_order), _dump_buf_data); 8833 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 8834 } 8835 8836 if (_dump_buf_dif) { 8837 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 8838 "_dump_buf_dif at 0x%p\n", 8839 (1L << _dump_buf_dif_order), _dump_buf_dif); 8840 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 8841 } 8842 } 8843 8844 module_init(lpfc_init); 8845 module_exit(lpfc_exit); 8846 MODULE_LICENSE("GPL"); 8847 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 8848 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 8849 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 8850