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 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 625 * 626 * This routine will issue the INIT_LINK mailbox command call. 627 * It is available to other drivers through the lpfc_hba data 628 * structure for use as a delayed link up mechanism with the 629 * module parameter lpfc_suppress_link_up. 630 * 631 * Return code 632 * 0 - success 633 * Any other value - error 634 **/ 635 int 636 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 637 { 638 struct lpfc_vport *vport = phba->pport; 639 LPFC_MBOXQ_t *pmb; 640 MAILBOX_t *mb; 641 int rc; 642 643 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 644 if (!pmb) { 645 phba->link_state = LPFC_HBA_ERROR; 646 return -ENOMEM; 647 } 648 mb = &pmb->u.mb; 649 pmb->vport = vport; 650 651 lpfc_init_link(phba, pmb, phba->cfg_topology, 652 phba->cfg_link_speed); 653 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 654 lpfc_set_loopback_flag(phba); 655 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 656 if (rc != MBX_SUCCESS) { 657 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 658 "0498 Adapter failed to init, mbxCmd x%x " 659 "INIT_LINK, mbxStatus x%x\n", 660 mb->mbxCommand, mb->mbxStatus); 661 /* Clear all interrupt enable conditions */ 662 writel(0, phba->HCregaddr); 663 readl(phba->HCregaddr); /* flush */ 664 /* Clear all pending interrupts */ 665 writel(0xffffffff, phba->HAregaddr); 666 readl(phba->HAregaddr); /* flush */ 667 phba->link_state = LPFC_HBA_ERROR; 668 if (rc != MBX_BUSY || flag == MBX_POLL) 669 mempool_free(pmb, phba->mbox_mem_pool); 670 return -EIO; 671 } 672 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 673 if (flag == MBX_POLL) 674 mempool_free(pmb, phba->mbox_mem_pool); 675 676 return 0; 677 } 678 679 /** 680 * lpfc_hba_down_link - this routine downs the FC link 681 * @phba: pointer to lpfc hba data structure. 682 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 683 * 684 * This routine will issue the DOWN_LINK mailbox command call. 685 * It is available to other drivers through the lpfc_hba data 686 * structure for use to stop the link. 687 * 688 * Return code 689 * 0 - success 690 * Any other value - error 691 **/ 692 int 693 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 694 { 695 LPFC_MBOXQ_t *pmb; 696 int rc; 697 698 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 699 if (!pmb) { 700 phba->link_state = LPFC_HBA_ERROR; 701 return -ENOMEM; 702 } 703 704 lpfc_printf_log(phba, 705 KERN_ERR, LOG_INIT, 706 "0491 Adapter Link is disabled.\n"); 707 lpfc_down_link(phba, pmb); 708 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 709 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 710 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 711 lpfc_printf_log(phba, 712 KERN_ERR, LOG_INIT, 713 "2522 Adapter failed to issue DOWN_LINK" 714 " mbox command rc 0x%x\n", rc); 715 716 mempool_free(pmb, phba->mbox_mem_pool); 717 return -EIO; 718 } 719 if (flag == MBX_POLL) 720 mempool_free(pmb, phba->mbox_mem_pool); 721 722 return 0; 723 } 724 725 /** 726 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 727 * @phba: pointer to lpfc HBA data structure. 728 * 729 * This routine will do LPFC uninitialization before the HBA is reset when 730 * bringing down the SLI Layer. 731 * 732 * Return codes 733 * 0 - success. 734 * Any other value - error. 735 **/ 736 int 737 lpfc_hba_down_prep(struct lpfc_hba *phba) 738 { 739 struct lpfc_vport **vports; 740 int i; 741 742 if (phba->sli_rev <= LPFC_SLI_REV3) { 743 /* Disable interrupts */ 744 writel(0, phba->HCregaddr); 745 readl(phba->HCregaddr); /* flush */ 746 } 747 748 if (phba->pport->load_flag & FC_UNLOADING) 749 lpfc_cleanup_discovery_resources(phba->pport); 750 else { 751 vports = lpfc_create_vport_work_array(phba); 752 if (vports != NULL) 753 for (i = 0; i <= phba->max_vports && 754 vports[i] != NULL; i++) 755 lpfc_cleanup_discovery_resources(vports[i]); 756 lpfc_destroy_vport_work_array(phba, vports); 757 } 758 return 0; 759 } 760 761 /** 762 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 763 * @phba: pointer to lpfc HBA data structure. 764 * 765 * This routine will do uninitialization after the HBA is reset when bring 766 * down the SLI Layer. 767 * 768 * Return codes 769 * 0 - success. 770 * Any other value - error. 771 **/ 772 static int 773 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 774 { 775 struct lpfc_sli *psli = &phba->sli; 776 struct lpfc_sli_ring *pring; 777 struct lpfc_dmabuf *mp, *next_mp; 778 LIST_HEAD(completions); 779 int i; 780 781 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 782 lpfc_sli_hbqbuf_free_all(phba); 783 else { 784 /* Cleanup preposted buffers on the ELS ring */ 785 pring = &psli->ring[LPFC_ELS_RING]; 786 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 787 list_del(&mp->list); 788 pring->postbufq_cnt--; 789 lpfc_mbuf_free(phba, mp->virt, mp->phys); 790 kfree(mp); 791 } 792 } 793 794 spin_lock_irq(&phba->hbalock); 795 for (i = 0; i < psli->num_rings; i++) { 796 pring = &psli->ring[i]; 797 798 /* At this point in time the HBA is either reset or DOA. Either 799 * way, nothing should be on txcmplq as it will NEVER complete. 800 */ 801 list_splice_init(&pring->txcmplq, &completions); 802 pring->txcmplq_cnt = 0; 803 spin_unlock_irq(&phba->hbalock); 804 805 /* Cancel all the IOCBs from the completions list */ 806 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 807 IOERR_SLI_ABORTED); 808 809 lpfc_sli_abort_iocb_ring(phba, pring); 810 spin_lock_irq(&phba->hbalock); 811 } 812 spin_unlock_irq(&phba->hbalock); 813 814 return 0; 815 } 816 /** 817 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 818 * @phba: pointer to lpfc HBA data structure. 819 * 820 * This routine will do uninitialization after the HBA is reset when bring 821 * down the SLI Layer. 822 * 823 * Return codes 824 * 0 - success. 825 * Any other value - error. 826 **/ 827 static int 828 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 829 { 830 struct lpfc_scsi_buf *psb, *psb_next; 831 LIST_HEAD(aborts); 832 int ret; 833 unsigned long iflag = 0; 834 struct lpfc_sglq *sglq_entry = NULL; 835 836 ret = lpfc_hba_down_post_s3(phba); 837 if (ret) 838 return ret; 839 /* At this point in time the HBA is either reset or DOA. Either 840 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 841 * on the lpfc_sgl_list so that it can either be freed if the 842 * driver is unloading or reposted if the driver is restarting 843 * the port. 844 */ 845 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 846 /* scsl_buf_list */ 847 /* abts_sgl_list_lock required because worker thread uses this 848 * list. 849 */ 850 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 851 list_for_each_entry(sglq_entry, 852 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 853 sglq_entry->state = SGL_FREED; 854 855 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 856 &phba->sli4_hba.lpfc_sgl_list); 857 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 858 /* abts_scsi_buf_list_lock required because worker thread uses this 859 * list. 860 */ 861 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 862 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 863 &aborts); 864 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 865 spin_unlock_irq(&phba->hbalock); 866 867 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 868 psb->pCmd = NULL; 869 psb->status = IOSTAT_SUCCESS; 870 } 871 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 872 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 873 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 874 return 0; 875 } 876 877 /** 878 * lpfc_hba_down_post - Wrapper func for hba down post routine 879 * @phba: pointer to lpfc HBA data structure. 880 * 881 * This routine wraps the actual SLI3 or SLI4 routine for performing 882 * uninitialization after the HBA is reset when bring down the SLI Layer. 883 * 884 * Return codes 885 * 0 - success. 886 * Any other value - error. 887 **/ 888 int 889 lpfc_hba_down_post(struct lpfc_hba *phba) 890 { 891 return (*phba->lpfc_hba_down_post)(phba); 892 } 893 894 /** 895 * lpfc_hb_timeout - The HBA-timer timeout handler 896 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 897 * 898 * This is the HBA-timer timeout handler registered to the lpfc driver. When 899 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 900 * work-port-events bitmap and the worker thread is notified. This timeout 901 * event will be used by the worker thread to invoke the actual timeout 902 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 903 * be performed in the timeout handler and the HBA timeout event bit shall 904 * be cleared by the worker thread after it has taken the event bitmap out. 905 **/ 906 static void 907 lpfc_hb_timeout(unsigned long ptr) 908 { 909 struct lpfc_hba *phba; 910 uint32_t tmo_posted; 911 unsigned long iflag; 912 913 phba = (struct lpfc_hba *)ptr; 914 915 /* Check for heart beat timeout conditions */ 916 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 917 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 918 if (!tmo_posted) 919 phba->pport->work_port_events |= WORKER_HB_TMO; 920 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 921 922 /* Tell the worker thread there is work to do */ 923 if (!tmo_posted) 924 lpfc_worker_wake_up(phba); 925 return; 926 } 927 928 /** 929 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 930 * @phba: pointer to lpfc hba data structure. 931 * @pmboxq: pointer to the driver internal queue element for mailbox command. 932 * 933 * This is the callback function to the lpfc heart-beat mailbox command. 934 * If configured, the lpfc driver issues the heart-beat mailbox command to 935 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 936 * heart-beat mailbox command is issued, the driver shall set up heart-beat 937 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 938 * heart-beat outstanding state. Once the mailbox command comes back and 939 * no error conditions detected, the heart-beat mailbox command timer is 940 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 941 * state is cleared for the next heart-beat. If the timer expired with the 942 * heart-beat outstanding state set, the driver will put the HBA offline. 943 **/ 944 static void 945 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 946 { 947 unsigned long drvr_flag; 948 949 spin_lock_irqsave(&phba->hbalock, drvr_flag); 950 phba->hb_outstanding = 0; 951 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 952 953 /* Check and reset heart-beat timer is necessary */ 954 mempool_free(pmboxq, phba->mbox_mem_pool); 955 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 956 !(phba->link_state == LPFC_HBA_ERROR) && 957 !(phba->pport->load_flag & FC_UNLOADING)) 958 mod_timer(&phba->hb_tmofunc, 959 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 960 return; 961 } 962 963 /** 964 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 965 * @phba: pointer to lpfc hba data structure. 966 * 967 * This is the actual HBA-timer timeout handler to be invoked by the worker 968 * thread whenever the HBA timer fired and HBA-timeout event posted. This 969 * handler performs any periodic operations needed for the device. If such 970 * periodic event has already been attended to either in the interrupt handler 971 * or by processing slow-ring or fast-ring events within the HBA-timer 972 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 973 * the timer for the next timeout period. If lpfc heart-beat mailbox command 974 * is configured and there is no heart-beat mailbox command outstanding, a 975 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 976 * has been a heart-beat mailbox command outstanding, the HBA shall be put 977 * to offline. 978 **/ 979 void 980 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 981 { 982 struct lpfc_vport **vports; 983 LPFC_MBOXQ_t *pmboxq; 984 struct lpfc_dmabuf *buf_ptr; 985 int retval, i; 986 struct lpfc_sli *psli = &phba->sli; 987 LIST_HEAD(completions); 988 989 vports = lpfc_create_vport_work_array(phba); 990 if (vports != NULL) 991 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 992 lpfc_rcv_seq_check_edtov(vports[i]); 993 lpfc_destroy_vport_work_array(phba, vports); 994 995 if ((phba->link_state == LPFC_HBA_ERROR) || 996 (phba->pport->load_flag & FC_UNLOADING) || 997 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 998 return; 999 1000 spin_lock_irq(&phba->pport->work_port_lock); 1001 1002 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 1003 jiffies)) { 1004 spin_unlock_irq(&phba->pport->work_port_lock); 1005 if (!phba->hb_outstanding) 1006 mod_timer(&phba->hb_tmofunc, 1007 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1008 else 1009 mod_timer(&phba->hb_tmofunc, 1010 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1011 return; 1012 } 1013 spin_unlock_irq(&phba->pport->work_port_lock); 1014 1015 if (phba->elsbuf_cnt && 1016 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1017 spin_lock_irq(&phba->hbalock); 1018 list_splice_init(&phba->elsbuf, &completions); 1019 phba->elsbuf_cnt = 0; 1020 phba->elsbuf_prev_cnt = 0; 1021 spin_unlock_irq(&phba->hbalock); 1022 1023 while (!list_empty(&completions)) { 1024 list_remove_head(&completions, buf_ptr, 1025 struct lpfc_dmabuf, list); 1026 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1027 kfree(buf_ptr); 1028 } 1029 } 1030 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1031 1032 /* If there is no heart beat outstanding, issue a heartbeat command */ 1033 if (phba->cfg_enable_hba_heartbeat) { 1034 if (!phba->hb_outstanding) { 1035 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 1036 if (!pmboxq) { 1037 mod_timer(&phba->hb_tmofunc, 1038 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1039 return; 1040 } 1041 1042 lpfc_heart_beat(phba, pmboxq); 1043 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1044 pmboxq->vport = phba->pport; 1045 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); 1046 1047 if (retval != MBX_BUSY && retval != MBX_SUCCESS) { 1048 mempool_free(pmboxq, phba->mbox_mem_pool); 1049 mod_timer(&phba->hb_tmofunc, 1050 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1051 return; 1052 } 1053 mod_timer(&phba->hb_tmofunc, 1054 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1055 phba->hb_outstanding = 1; 1056 return; 1057 } else { 1058 /* 1059 * If heart beat timeout called with hb_outstanding set 1060 * we need to take the HBA offline. 1061 */ 1062 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1063 "0459 Adapter heartbeat failure, " 1064 "taking this port offline.\n"); 1065 1066 spin_lock_irq(&phba->hbalock); 1067 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1068 spin_unlock_irq(&phba->hbalock); 1069 1070 lpfc_offline_prep(phba); 1071 lpfc_offline(phba); 1072 lpfc_unblock_mgmt_io(phba); 1073 phba->link_state = LPFC_HBA_ERROR; 1074 lpfc_hba_down_post(phba); 1075 } 1076 } 1077 } 1078 1079 /** 1080 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1081 * @phba: pointer to lpfc hba data structure. 1082 * 1083 * This routine is called to bring the HBA offline when HBA hardware error 1084 * other than Port Error 6 has been detected. 1085 **/ 1086 static void 1087 lpfc_offline_eratt(struct lpfc_hba *phba) 1088 { 1089 struct lpfc_sli *psli = &phba->sli; 1090 1091 spin_lock_irq(&phba->hbalock); 1092 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1093 spin_unlock_irq(&phba->hbalock); 1094 lpfc_offline_prep(phba); 1095 1096 lpfc_offline(phba); 1097 lpfc_reset_barrier(phba); 1098 spin_lock_irq(&phba->hbalock); 1099 lpfc_sli_brdreset(phba); 1100 spin_unlock_irq(&phba->hbalock); 1101 lpfc_hba_down_post(phba); 1102 lpfc_sli_brdready(phba, HS_MBRDY); 1103 lpfc_unblock_mgmt_io(phba); 1104 phba->link_state = LPFC_HBA_ERROR; 1105 return; 1106 } 1107 1108 /** 1109 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1110 * @phba: pointer to lpfc hba data structure. 1111 * 1112 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1113 * other than Port Error 6 has been detected. 1114 **/ 1115 static void 1116 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1117 { 1118 lpfc_offline_prep(phba); 1119 lpfc_offline(phba); 1120 lpfc_sli4_brdreset(phba); 1121 lpfc_hba_down_post(phba); 1122 lpfc_sli4_post_status_check(phba); 1123 lpfc_unblock_mgmt_io(phba); 1124 phba->link_state = LPFC_HBA_ERROR; 1125 } 1126 1127 /** 1128 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1129 * @phba: pointer to lpfc hba data structure. 1130 * 1131 * This routine is invoked to handle the deferred HBA hardware error 1132 * conditions. This type of error is indicated by HBA by setting ER1 1133 * and another ER bit in the host status register. The driver will 1134 * wait until the ER1 bit clears before handling the error condition. 1135 **/ 1136 static void 1137 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1138 { 1139 uint32_t old_host_status = phba->work_hs; 1140 struct lpfc_sli_ring *pring; 1141 struct lpfc_sli *psli = &phba->sli; 1142 1143 /* If the pci channel is offline, ignore possible errors, 1144 * since we cannot communicate with the pci card anyway. 1145 */ 1146 if (pci_channel_offline(phba->pcidev)) { 1147 spin_lock_irq(&phba->hbalock); 1148 phba->hba_flag &= ~DEFER_ERATT; 1149 spin_unlock_irq(&phba->hbalock); 1150 return; 1151 } 1152 1153 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1154 "0479 Deferred Adapter Hardware Error " 1155 "Data: x%x x%x x%x\n", 1156 phba->work_hs, 1157 phba->work_status[0], phba->work_status[1]); 1158 1159 spin_lock_irq(&phba->hbalock); 1160 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1161 spin_unlock_irq(&phba->hbalock); 1162 1163 1164 /* 1165 * Firmware stops when it triggred erratt. That could cause the I/Os 1166 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1167 * SCSI layer retry it after re-establishing link. 1168 */ 1169 pring = &psli->ring[psli->fcp_ring]; 1170 lpfc_sli_abort_iocb_ring(phba, pring); 1171 1172 /* 1173 * There was a firmware error. Take the hba offline and then 1174 * attempt to restart it. 1175 */ 1176 lpfc_offline_prep(phba); 1177 lpfc_offline(phba); 1178 1179 /* Wait for the ER1 bit to clear.*/ 1180 while (phba->work_hs & HS_FFER1) { 1181 msleep(100); 1182 phba->work_hs = readl(phba->HSregaddr); 1183 /* If driver is unloading let the worker thread continue */ 1184 if (phba->pport->load_flag & FC_UNLOADING) { 1185 phba->work_hs = 0; 1186 break; 1187 } 1188 } 1189 1190 /* 1191 * This is to ptrotect against a race condition in which 1192 * first write to the host attention register clear the 1193 * host status register. 1194 */ 1195 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1196 phba->work_hs = old_host_status & ~HS_FFER1; 1197 1198 spin_lock_irq(&phba->hbalock); 1199 phba->hba_flag &= ~DEFER_ERATT; 1200 spin_unlock_irq(&phba->hbalock); 1201 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1202 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1203 } 1204 1205 static void 1206 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1207 { 1208 struct lpfc_board_event_header board_event; 1209 struct Scsi_Host *shost; 1210 1211 board_event.event_type = FC_REG_BOARD_EVENT; 1212 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1213 shost = lpfc_shost_from_vport(phba->pport); 1214 fc_host_post_vendor_event(shost, fc_get_event_number(), 1215 sizeof(board_event), 1216 (char *) &board_event, 1217 LPFC_NL_VENDOR_ID); 1218 } 1219 1220 /** 1221 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1222 * @phba: pointer to lpfc hba data structure. 1223 * 1224 * This routine is invoked to handle the following HBA hardware error 1225 * conditions: 1226 * 1 - HBA error attention interrupt 1227 * 2 - DMA ring index out of range 1228 * 3 - Mailbox command came back as unknown 1229 **/ 1230 static void 1231 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1232 { 1233 struct lpfc_vport *vport = phba->pport; 1234 struct lpfc_sli *psli = &phba->sli; 1235 struct lpfc_sli_ring *pring; 1236 uint32_t event_data; 1237 unsigned long temperature; 1238 struct temp_event temp_event_data; 1239 struct Scsi_Host *shost; 1240 1241 /* If the pci channel is offline, ignore possible errors, 1242 * since we cannot communicate with the pci card anyway. 1243 */ 1244 if (pci_channel_offline(phba->pcidev)) { 1245 spin_lock_irq(&phba->hbalock); 1246 phba->hba_flag &= ~DEFER_ERATT; 1247 spin_unlock_irq(&phba->hbalock); 1248 return; 1249 } 1250 1251 /* If resets are disabled then leave the HBA alone and return */ 1252 if (!phba->cfg_enable_hba_reset) 1253 return; 1254 1255 /* Send an internal error event to mgmt application */ 1256 lpfc_board_errevt_to_mgmt(phba); 1257 1258 if (phba->hba_flag & DEFER_ERATT) 1259 lpfc_handle_deferred_eratt(phba); 1260 1261 if (phba->work_hs & HS_FFER6) { 1262 /* Re-establishing Link */ 1263 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1264 "1301 Re-establishing Link " 1265 "Data: x%x x%x x%x\n", 1266 phba->work_hs, 1267 phba->work_status[0], phba->work_status[1]); 1268 1269 spin_lock_irq(&phba->hbalock); 1270 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1271 spin_unlock_irq(&phba->hbalock); 1272 1273 /* 1274 * Firmware stops when it triggled erratt with HS_FFER6. 1275 * That could cause the I/Os dropped by the firmware. 1276 * Error iocb (I/O) on txcmplq and let the SCSI layer 1277 * retry it after re-establishing link. 1278 */ 1279 pring = &psli->ring[psli->fcp_ring]; 1280 lpfc_sli_abort_iocb_ring(phba, pring); 1281 1282 /* 1283 * There was a firmware error. Take the hba offline and then 1284 * attempt to restart it. 1285 */ 1286 lpfc_offline_prep(phba); 1287 lpfc_offline(phba); 1288 lpfc_sli_brdrestart(phba); 1289 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1290 lpfc_unblock_mgmt_io(phba); 1291 return; 1292 } 1293 lpfc_unblock_mgmt_io(phba); 1294 } else if (phba->work_hs & HS_CRIT_TEMP) { 1295 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1296 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1297 temp_event_data.event_code = LPFC_CRIT_TEMP; 1298 temp_event_data.data = (uint32_t)temperature; 1299 1300 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1301 "0406 Adapter maximum temperature exceeded " 1302 "(%ld), taking this port offline " 1303 "Data: x%x x%x x%x\n", 1304 temperature, phba->work_hs, 1305 phba->work_status[0], phba->work_status[1]); 1306 1307 shost = lpfc_shost_from_vport(phba->pport); 1308 fc_host_post_vendor_event(shost, fc_get_event_number(), 1309 sizeof(temp_event_data), 1310 (char *) &temp_event_data, 1311 SCSI_NL_VID_TYPE_PCI 1312 | PCI_VENDOR_ID_EMULEX); 1313 1314 spin_lock_irq(&phba->hbalock); 1315 phba->over_temp_state = HBA_OVER_TEMP; 1316 spin_unlock_irq(&phba->hbalock); 1317 lpfc_offline_eratt(phba); 1318 1319 } else { 1320 /* The if clause above forces this code path when the status 1321 * failure is a value other than FFER6. Do not call the offline 1322 * twice. This is the adapter hardware error path. 1323 */ 1324 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1325 "0457 Adapter Hardware Error " 1326 "Data: x%x x%x x%x\n", 1327 phba->work_hs, 1328 phba->work_status[0], phba->work_status[1]); 1329 1330 event_data = FC_REG_DUMP_EVENT; 1331 shost = lpfc_shost_from_vport(vport); 1332 fc_host_post_vendor_event(shost, fc_get_event_number(), 1333 sizeof(event_data), (char *) &event_data, 1334 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1335 1336 lpfc_offline_eratt(phba); 1337 } 1338 return; 1339 } 1340 1341 /** 1342 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1343 * @phba: pointer to lpfc hba data structure. 1344 * 1345 * This routine is invoked to handle the SLI4 HBA hardware error attention 1346 * conditions. 1347 **/ 1348 static void 1349 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1350 { 1351 struct lpfc_vport *vport = phba->pport; 1352 uint32_t event_data; 1353 struct Scsi_Host *shost; 1354 1355 /* If the pci channel is offline, ignore possible errors, since 1356 * we cannot communicate with the pci card anyway. 1357 */ 1358 if (pci_channel_offline(phba->pcidev)) 1359 return; 1360 /* If resets are disabled then leave the HBA alone and return */ 1361 if (!phba->cfg_enable_hba_reset) 1362 return; 1363 1364 /* Send an internal error event to mgmt application */ 1365 lpfc_board_errevt_to_mgmt(phba); 1366 1367 /* For now, the actual action for SLI4 device handling is not 1368 * specified yet, just treated it as adaptor hardware failure 1369 */ 1370 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1371 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n", 1372 phba->work_status[0], phba->work_status[1]); 1373 1374 event_data = FC_REG_DUMP_EVENT; 1375 shost = lpfc_shost_from_vport(vport); 1376 fc_host_post_vendor_event(shost, fc_get_event_number(), 1377 sizeof(event_data), (char *) &event_data, 1378 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1379 1380 lpfc_sli4_offline_eratt(phba); 1381 } 1382 1383 /** 1384 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1385 * @phba: pointer to lpfc HBA data structure. 1386 * 1387 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1388 * routine from the API jump table function pointer from the lpfc_hba struct. 1389 * 1390 * Return codes 1391 * 0 - success. 1392 * Any other value - error. 1393 **/ 1394 void 1395 lpfc_handle_eratt(struct lpfc_hba *phba) 1396 { 1397 (*phba->lpfc_handle_eratt)(phba); 1398 } 1399 1400 /** 1401 * lpfc_handle_latt - The HBA link event handler 1402 * @phba: pointer to lpfc hba data structure. 1403 * 1404 * This routine is invoked from the worker thread to handle a HBA host 1405 * attention link event. 1406 **/ 1407 void 1408 lpfc_handle_latt(struct lpfc_hba *phba) 1409 { 1410 struct lpfc_vport *vport = phba->pport; 1411 struct lpfc_sli *psli = &phba->sli; 1412 LPFC_MBOXQ_t *pmb; 1413 volatile uint32_t control; 1414 struct lpfc_dmabuf *mp; 1415 int rc = 0; 1416 1417 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1418 if (!pmb) { 1419 rc = 1; 1420 goto lpfc_handle_latt_err_exit; 1421 } 1422 1423 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1424 if (!mp) { 1425 rc = 2; 1426 goto lpfc_handle_latt_free_pmb; 1427 } 1428 1429 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1430 if (!mp->virt) { 1431 rc = 3; 1432 goto lpfc_handle_latt_free_mp; 1433 } 1434 1435 /* Cleanup any outstanding ELS commands */ 1436 lpfc_els_flush_all_cmd(phba); 1437 1438 psli->slistat.link_event++; 1439 lpfc_read_la(phba, pmb, mp); 1440 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 1441 pmb->vport = vport; 1442 /* Block ELS IOCBs until we have processed this mbox command */ 1443 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1444 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1445 if (rc == MBX_NOT_FINISHED) { 1446 rc = 4; 1447 goto lpfc_handle_latt_free_mbuf; 1448 } 1449 1450 /* Clear Link Attention in HA REG */ 1451 spin_lock_irq(&phba->hbalock); 1452 writel(HA_LATT, phba->HAregaddr); 1453 readl(phba->HAregaddr); /* flush */ 1454 spin_unlock_irq(&phba->hbalock); 1455 1456 return; 1457 1458 lpfc_handle_latt_free_mbuf: 1459 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1460 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1461 lpfc_handle_latt_free_mp: 1462 kfree(mp); 1463 lpfc_handle_latt_free_pmb: 1464 mempool_free(pmb, phba->mbox_mem_pool); 1465 lpfc_handle_latt_err_exit: 1466 /* Enable Link attention interrupts */ 1467 spin_lock_irq(&phba->hbalock); 1468 psli->sli_flag |= LPFC_PROCESS_LA; 1469 control = readl(phba->HCregaddr); 1470 control |= HC_LAINT_ENA; 1471 writel(control, phba->HCregaddr); 1472 readl(phba->HCregaddr); /* flush */ 1473 1474 /* Clear Link Attention in HA REG */ 1475 writel(HA_LATT, phba->HAregaddr); 1476 readl(phba->HAregaddr); /* flush */ 1477 spin_unlock_irq(&phba->hbalock); 1478 lpfc_linkdown(phba); 1479 phba->link_state = LPFC_HBA_ERROR; 1480 1481 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1482 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1483 1484 return; 1485 } 1486 1487 /** 1488 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1489 * @phba: pointer to lpfc hba data structure. 1490 * @vpd: pointer to the vital product data. 1491 * @len: length of the vital product data in bytes. 1492 * 1493 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1494 * an array of characters. In this routine, the ModelName, ProgramType, and 1495 * ModelDesc, etc. fields of the phba data structure will be populated. 1496 * 1497 * Return codes 1498 * 0 - pointer to the VPD passed in is NULL 1499 * 1 - success 1500 **/ 1501 int 1502 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1503 { 1504 uint8_t lenlo, lenhi; 1505 int Length; 1506 int i, j; 1507 int finished = 0; 1508 int index = 0; 1509 1510 if (!vpd) 1511 return 0; 1512 1513 /* Vital Product */ 1514 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1515 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1516 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1517 (uint32_t) vpd[3]); 1518 while (!finished && (index < (len - 4))) { 1519 switch (vpd[index]) { 1520 case 0x82: 1521 case 0x91: 1522 index += 1; 1523 lenlo = vpd[index]; 1524 index += 1; 1525 lenhi = vpd[index]; 1526 index += 1; 1527 i = ((((unsigned short)lenhi) << 8) + lenlo); 1528 index += i; 1529 break; 1530 case 0x90: 1531 index += 1; 1532 lenlo = vpd[index]; 1533 index += 1; 1534 lenhi = vpd[index]; 1535 index += 1; 1536 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1537 if (Length > len - index) 1538 Length = len - index; 1539 while (Length > 0) { 1540 /* Look for Serial Number */ 1541 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1542 index += 2; 1543 i = vpd[index]; 1544 index += 1; 1545 j = 0; 1546 Length -= (3+i); 1547 while(i--) { 1548 phba->SerialNumber[j++] = vpd[index++]; 1549 if (j == 31) 1550 break; 1551 } 1552 phba->SerialNumber[j] = 0; 1553 continue; 1554 } 1555 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1556 phba->vpd_flag |= VPD_MODEL_DESC; 1557 index += 2; 1558 i = vpd[index]; 1559 index += 1; 1560 j = 0; 1561 Length -= (3+i); 1562 while(i--) { 1563 phba->ModelDesc[j++] = vpd[index++]; 1564 if (j == 255) 1565 break; 1566 } 1567 phba->ModelDesc[j] = 0; 1568 continue; 1569 } 1570 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1571 phba->vpd_flag |= VPD_MODEL_NAME; 1572 index += 2; 1573 i = vpd[index]; 1574 index += 1; 1575 j = 0; 1576 Length -= (3+i); 1577 while(i--) { 1578 phba->ModelName[j++] = vpd[index++]; 1579 if (j == 79) 1580 break; 1581 } 1582 phba->ModelName[j] = 0; 1583 continue; 1584 } 1585 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1586 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1587 index += 2; 1588 i = vpd[index]; 1589 index += 1; 1590 j = 0; 1591 Length -= (3+i); 1592 while(i--) { 1593 phba->ProgramType[j++] = vpd[index++]; 1594 if (j == 255) 1595 break; 1596 } 1597 phba->ProgramType[j] = 0; 1598 continue; 1599 } 1600 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1601 phba->vpd_flag |= VPD_PORT; 1602 index += 2; 1603 i = vpd[index]; 1604 index += 1; 1605 j = 0; 1606 Length -= (3+i); 1607 while(i--) { 1608 phba->Port[j++] = vpd[index++]; 1609 if (j == 19) 1610 break; 1611 } 1612 phba->Port[j] = 0; 1613 continue; 1614 } 1615 else { 1616 index += 2; 1617 i = vpd[index]; 1618 index += 1; 1619 index += i; 1620 Length -= (3 + i); 1621 } 1622 } 1623 finished = 0; 1624 break; 1625 case 0x78: 1626 finished = 1; 1627 break; 1628 default: 1629 index ++; 1630 break; 1631 } 1632 } 1633 1634 return(1); 1635 } 1636 1637 /** 1638 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1639 * @phba: pointer to lpfc hba data structure. 1640 * @mdp: pointer to the data structure to hold the derived model name. 1641 * @descp: pointer to the data structure to hold the derived description. 1642 * 1643 * This routine retrieves HBA's description based on its registered PCI device 1644 * ID. The @descp passed into this function points to an array of 256 chars. It 1645 * shall be returned with the model name, maximum speed, and the host bus type. 1646 * The @mdp passed into this function points to an array of 80 chars. When the 1647 * function returns, the @mdp will be filled with the model name. 1648 **/ 1649 static void 1650 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1651 { 1652 lpfc_vpd_t *vp; 1653 uint16_t dev_id = phba->pcidev->device; 1654 int max_speed; 1655 int GE = 0; 1656 int oneConnect = 0; /* default is not a oneConnect */ 1657 struct { 1658 char *name; 1659 char *bus; 1660 char *function; 1661 } m = {"<Unknown>", "", ""}; 1662 1663 if (mdp && mdp[0] != '\0' 1664 && descp && descp[0] != '\0') 1665 return; 1666 1667 if (phba->lmt & LMT_10Gb) 1668 max_speed = 10; 1669 else if (phba->lmt & LMT_8Gb) 1670 max_speed = 8; 1671 else if (phba->lmt & LMT_4Gb) 1672 max_speed = 4; 1673 else if (phba->lmt & LMT_2Gb) 1674 max_speed = 2; 1675 else 1676 max_speed = 1; 1677 1678 vp = &phba->vpd; 1679 1680 switch (dev_id) { 1681 case PCI_DEVICE_ID_FIREFLY: 1682 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1683 break; 1684 case PCI_DEVICE_ID_SUPERFLY: 1685 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1686 m = (typeof(m)){"LP7000", "PCI", 1687 "Fibre Channel Adapter"}; 1688 else 1689 m = (typeof(m)){"LP7000E", "PCI", 1690 "Fibre Channel Adapter"}; 1691 break; 1692 case PCI_DEVICE_ID_DRAGONFLY: 1693 m = (typeof(m)){"LP8000", "PCI", 1694 "Fibre Channel Adapter"}; 1695 break; 1696 case PCI_DEVICE_ID_CENTAUR: 1697 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1698 m = (typeof(m)){"LP9002", "PCI", 1699 "Fibre Channel Adapter"}; 1700 else 1701 m = (typeof(m)){"LP9000", "PCI", 1702 "Fibre Channel Adapter"}; 1703 break; 1704 case PCI_DEVICE_ID_RFLY: 1705 m = (typeof(m)){"LP952", "PCI", 1706 "Fibre Channel Adapter"}; 1707 break; 1708 case PCI_DEVICE_ID_PEGASUS: 1709 m = (typeof(m)){"LP9802", "PCI-X", 1710 "Fibre Channel Adapter"}; 1711 break; 1712 case PCI_DEVICE_ID_THOR: 1713 m = (typeof(m)){"LP10000", "PCI-X", 1714 "Fibre Channel Adapter"}; 1715 break; 1716 case PCI_DEVICE_ID_VIPER: 1717 m = (typeof(m)){"LPX1000", "PCI-X", 1718 "Fibre Channel Adapter"}; 1719 break; 1720 case PCI_DEVICE_ID_PFLY: 1721 m = (typeof(m)){"LP982", "PCI-X", 1722 "Fibre Channel Adapter"}; 1723 break; 1724 case PCI_DEVICE_ID_TFLY: 1725 m = (typeof(m)){"LP1050", "PCI-X", 1726 "Fibre Channel Adapter"}; 1727 break; 1728 case PCI_DEVICE_ID_HELIOS: 1729 m = (typeof(m)){"LP11000", "PCI-X2", 1730 "Fibre Channel Adapter"}; 1731 break; 1732 case PCI_DEVICE_ID_HELIOS_SCSP: 1733 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1734 "Fibre Channel Adapter"}; 1735 break; 1736 case PCI_DEVICE_ID_HELIOS_DCSP: 1737 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1738 "Fibre Channel Adapter"}; 1739 break; 1740 case PCI_DEVICE_ID_NEPTUNE: 1741 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1742 break; 1743 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1744 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1745 break; 1746 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1747 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1748 break; 1749 case PCI_DEVICE_ID_BMID: 1750 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1751 break; 1752 case PCI_DEVICE_ID_BSMB: 1753 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1754 break; 1755 case PCI_DEVICE_ID_ZEPHYR: 1756 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1757 break; 1758 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1759 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1760 break; 1761 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1762 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1763 GE = 1; 1764 break; 1765 case PCI_DEVICE_ID_ZMID: 1766 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1767 break; 1768 case PCI_DEVICE_ID_ZSMB: 1769 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1770 break; 1771 case PCI_DEVICE_ID_LP101: 1772 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1773 break; 1774 case PCI_DEVICE_ID_LP10000S: 1775 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1776 break; 1777 case PCI_DEVICE_ID_LP11000S: 1778 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 1779 break; 1780 case PCI_DEVICE_ID_LPE11000S: 1781 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 1782 break; 1783 case PCI_DEVICE_ID_SAT: 1784 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 1785 break; 1786 case PCI_DEVICE_ID_SAT_MID: 1787 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 1788 break; 1789 case PCI_DEVICE_ID_SAT_SMB: 1790 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 1791 break; 1792 case PCI_DEVICE_ID_SAT_DCSP: 1793 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 1794 break; 1795 case PCI_DEVICE_ID_SAT_SCSP: 1796 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 1797 break; 1798 case PCI_DEVICE_ID_SAT_S: 1799 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 1800 break; 1801 case PCI_DEVICE_ID_HORNET: 1802 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 1803 GE = 1; 1804 break; 1805 case PCI_DEVICE_ID_PROTEUS_VF: 1806 m = (typeof(m)){"LPev12000", "PCIe IOV", 1807 "Fibre Channel Adapter"}; 1808 break; 1809 case PCI_DEVICE_ID_PROTEUS_PF: 1810 m = (typeof(m)){"LPev12000", "PCIe IOV", 1811 "Fibre Channel Adapter"}; 1812 break; 1813 case PCI_DEVICE_ID_PROTEUS_S: 1814 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 1815 "Fibre Channel Adapter"}; 1816 break; 1817 case PCI_DEVICE_ID_TIGERSHARK: 1818 oneConnect = 1; 1819 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 1820 break; 1821 case PCI_DEVICE_ID_TOMCAT: 1822 oneConnect = 1; 1823 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 1824 break; 1825 case PCI_DEVICE_ID_FALCON: 1826 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 1827 "EmulexSecure Fibre"}; 1828 break; 1829 case PCI_DEVICE_ID_BALIUS: 1830 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 1831 "Fibre Channel Adapter"}; 1832 break; 1833 default: 1834 m = (typeof(m)){"Unknown", "", ""}; 1835 break; 1836 } 1837 1838 if (mdp && mdp[0] == '\0') 1839 snprintf(mdp, 79,"%s", m.name); 1840 /* oneConnect hba requires special processing, they are all initiators 1841 * and we put the port number on the end 1842 */ 1843 if (descp && descp[0] == '\0') { 1844 if (oneConnect) 1845 snprintf(descp, 255, 1846 "Emulex OneConnect %s, %s Initiator, Port %s", 1847 m.name, m.function, 1848 phba->Port); 1849 else 1850 snprintf(descp, 255, 1851 "Emulex %s %d%s %s %s", 1852 m.name, max_speed, (GE) ? "GE" : "Gb", 1853 m.bus, m.function); 1854 } 1855 } 1856 1857 /** 1858 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 1859 * @phba: pointer to lpfc hba data structure. 1860 * @pring: pointer to a IOCB ring. 1861 * @cnt: the number of IOCBs to be posted to the IOCB ring. 1862 * 1863 * This routine posts a given number of IOCBs with the associated DMA buffer 1864 * descriptors specified by the cnt argument to the given IOCB ring. 1865 * 1866 * Return codes 1867 * The number of IOCBs NOT able to be posted to the IOCB ring. 1868 **/ 1869 int 1870 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 1871 { 1872 IOCB_t *icmd; 1873 struct lpfc_iocbq *iocb; 1874 struct lpfc_dmabuf *mp1, *mp2; 1875 1876 cnt += pring->missbufcnt; 1877 1878 /* While there are buffers to post */ 1879 while (cnt > 0) { 1880 /* Allocate buffer for command iocb */ 1881 iocb = lpfc_sli_get_iocbq(phba); 1882 if (iocb == NULL) { 1883 pring->missbufcnt = cnt; 1884 return cnt; 1885 } 1886 icmd = &iocb->iocb; 1887 1888 /* 2 buffers can be posted per command */ 1889 /* Allocate buffer to post */ 1890 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1891 if (mp1) 1892 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 1893 if (!mp1 || !mp1->virt) { 1894 kfree(mp1); 1895 lpfc_sli_release_iocbq(phba, iocb); 1896 pring->missbufcnt = cnt; 1897 return cnt; 1898 } 1899 1900 INIT_LIST_HEAD(&mp1->list); 1901 /* Allocate buffer to post */ 1902 if (cnt > 1) { 1903 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1904 if (mp2) 1905 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1906 &mp2->phys); 1907 if (!mp2 || !mp2->virt) { 1908 kfree(mp2); 1909 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1910 kfree(mp1); 1911 lpfc_sli_release_iocbq(phba, iocb); 1912 pring->missbufcnt = cnt; 1913 return cnt; 1914 } 1915 1916 INIT_LIST_HEAD(&mp2->list); 1917 } else { 1918 mp2 = NULL; 1919 } 1920 1921 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1922 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1923 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1924 icmd->ulpBdeCount = 1; 1925 cnt--; 1926 if (mp2) { 1927 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1928 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1929 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1930 cnt--; 1931 icmd->ulpBdeCount = 2; 1932 } 1933 1934 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1935 icmd->ulpLe = 1; 1936 1937 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 1938 IOCB_ERROR) { 1939 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1940 kfree(mp1); 1941 cnt++; 1942 if (mp2) { 1943 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1944 kfree(mp2); 1945 cnt++; 1946 } 1947 lpfc_sli_release_iocbq(phba, iocb); 1948 pring->missbufcnt = cnt; 1949 return cnt; 1950 } 1951 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1952 if (mp2) 1953 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1954 } 1955 pring->missbufcnt = 0; 1956 return 0; 1957 } 1958 1959 /** 1960 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 1961 * @phba: pointer to lpfc hba data structure. 1962 * 1963 * This routine posts initial receive IOCB buffers to the ELS ring. The 1964 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 1965 * set to 64 IOCBs. 1966 * 1967 * Return codes 1968 * 0 - success (currently always success) 1969 **/ 1970 static int 1971 lpfc_post_rcv_buf(struct lpfc_hba *phba) 1972 { 1973 struct lpfc_sli *psli = &phba->sli; 1974 1975 /* Ring 0, ELS / CT buffers */ 1976 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 1977 /* Ring 2 - FCP no buffers needed */ 1978 1979 return 0; 1980 } 1981 1982 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 1983 1984 /** 1985 * lpfc_sha_init - Set up initial array of hash table entries 1986 * @HashResultPointer: pointer to an array as hash table. 1987 * 1988 * This routine sets up the initial values to the array of hash table entries 1989 * for the LC HBAs. 1990 **/ 1991 static void 1992 lpfc_sha_init(uint32_t * HashResultPointer) 1993 { 1994 HashResultPointer[0] = 0x67452301; 1995 HashResultPointer[1] = 0xEFCDAB89; 1996 HashResultPointer[2] = 0x98BADCFE; 1997 HashResultPointer[3] = 0x10325476; 1998 HashResultPointer[4] = 0xC3D2E1F0; 1999 } 2000 2001 /** 2002 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2003 * @HashResultPointer: pointer to an initial/result hash table. 2004 * @HashWorkingPointer: pointer to an working hash table. 2005 * 2006 * This routine iterates an initial hash table pointed by @HashResultPointer 2007 * with the values from the working hash table pointeed by @HashWorkingPointer. 2008 * The results are putting back to the initial hash table, returned through 2009 * the @HashResultPointer as the result hash table. 2010 **/ 2011 static void 2012 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2013 { 2014 int t; 2015 uint32_t TEMP; 2016 uint32_t A, B, C, D, E; 2017 t = 16; 2018 do { 2019 HashWorkingPointer[t] = 2020 S(1, 2021 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2022 8] ^ 2023 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2024 } while (++t <= 79); 2025 t = 0; 2026 A = HashResultPointer[0]; 2027 B = HashResultPointer[1]; 2028 C = HashResultPointer[2]; 2029 D = HashResultPointer[3]; 2030 E = HashResultPointer[4]; 2031 2032 do { 2033 if (t < 20) { 2034 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2035 } else if (t < 40) { 2036 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2037 } else if (t < 60) { 2038 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2039 } else { 2040 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2041 } 2042 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2043 E = D; 2044 D = C; 2045 C = S(30, B); 2046 B = A; 2047 A = TEMP; 2048 } while (++t <= 79); 2049 2050 HashResultPointer[0] += A; 2051 HashResultPointer[1] += B; 2052 HashResultPointer[2] += C; 2053 HashResultPointer[3] += D; 2054 HashResultPointer[4] += E; 2055 2056 } 2057 2058 /** 2059 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2060 * @RandomChallenge: pointer to the entry of host challenge random number array. 2061 * @HashWorking: pointer to the entry of the working hash array. 2062 * 2063 * This routine calculates the working hash array referred by @HashWorking 2064 * from the challenge random numbers associated with the host, referred by 2065 * @RandomChallenge. The result is put into the entry of the working hash 2066 * array and returned by reference through @HashWorking. 2067 **/ 2068 static void 2069 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2070 { 2071 *HashWorking = (*RandomChallenge ^ *HashWorking); 2072 } 2073 2074 /** 2075 * lpfc_hba_init - Perform special handling for LC HBA initialization 2076 * @phba: pointer to lpfc hba data structure. 2077 * @hbainit: pointer to an array of unsigned 32-bit integers. 2078 * 2079 * This routine performs the special handling for LC HBA initialization. 2080 **/ 2081 void 2082 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2083 { 2084 int t; 2085 uint32_t *HashWorking; 2086 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2087 2088 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2089 if (!HashWorking) 2090 return; 2091 2092 HashWorking[0] = HashWorking[78] = *pwwnn++; 2093 HashWorking[1] = HashWorking[79] = *pwwnn; 2094 2095 for (t = 0; t < 7; t++) 2096 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2097 2098 lpfc_sha_init(hbainit); 2099 lpfc_sha_iterate(hbainit, HashWorking); 2100 kfree(HashWorking); 2101 } 2102 2103 /** 2104 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2105 * @vport: pointer to a virtual N_Port data structure. 2106 * 2107 * This routine performs the necessary cleanups before deleting the @vport. 2108 * It invokes the discovery state machine to perform necessary state 2109 * transitions and to release the ndlps associated with the @vport. Note, 2110 * the physical port is treated as @vport 0. 2111 **/ 2112 void 2113 lpfc_cleanup(struct lpfc_vport *vport) 2114 { 2115 struct lpfc_hba *phba = vport->phba; 2116 struct lpfc_nodelist *ndlp, *next_ndlp; 2117 int i = 0; 2118 2119 if (phba->link_state > LPFC_LINK_DOWN) 2120 lpfc_port_link_failure(vport); 2121 2122 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2123 if (!NLP_CHK_NODE_ACT(ndlp)) { 2124 ndlp = lpfc_enable_node(vport, ndlp, 2125 NLP_STE_UNUSED_NODE); 2126 if (!ndlp) 2127 continue; 2128 spin_lock_irq(&phba->ndlp_lock); 2129 NLP_SET_FREE_REQ(ndlp); 2130 spin_unlock_irq(&phba->ndlp_lock); 2131 /* Trigger the release of the ndlp memory */ 2132 lpfc_nlp_put(ndlp); 2133 continue; 2134 } 2135 spin_lock_irq(&phba->ndlp_lock); 2136 if (NLP_CHK_FREE_REQ(ndlp)) { 2137 /* The ndlp should not be in memory free mode already */ 2138 spin_unlock_irq(&phba->ndlp_lock); 2139 continue; 2140 } else 2141 /* Indicate request for freeing ndlp memory */ 2142 NLP_SET_FREE_REQ(ndlp); 2143 spin_unlock_irq(&phba->ndlp_lock); 2144 2145 if (vport->port_type != LPFC_PHYSICAL_PORT && 2146 ndlp->nlp_DID == Fabric_DID) { 2147 /* Just free up ndlp with Fabric_DID for vports */ 2148 lpfc_nlp_put(ndlp); 2149 continue; 2150 } 2151 2152 if (ndlp->nlp_type & NLP_FABRIC) 2153 lpfc_disc_state_machine(vport, ndlp, NULL, 2154 NLP_EVT_DEVICE_RECOVERY); 2155 2156 lpfc_disc_state_machine(vport, ndlp, NULL, 2157 NLP_EVT_DEVICE_RM); 2158 2159 } 2160 2161 /* At this point, ALL ndlp's should be gone 2162 * because of the previous NLP_EVT_DEVICE_RM. 2163 * Lets wait for this to happen, if needed. 2164 */ 2165 while (!list_empty(&vport->fc_nodes)) { 2166 if (i++ > 3000) { 2167 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2168 "0233 Nodelist not empty\n"); 2169 list_for_each_entry_safe(ndlp, next_ndlp, 2170 &vport->fc_nodes, nlp_listp) { 2171 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2172 LOG_NODE, 2173 "0282 did:x%x ndlp:x%p " 2174 "usgmap:x%x refcnt:%d\n", 2175 ndlp->nlp_DID, (void *)ndlp, 2176 ndlp->nlp_usg_map, 2177 atomic_read( 2178 &ndlp->kref.refcount)); 2179 } 2180 break; 2181 } 2182 2183 /* Wait for any activity on ndlps to settle */ 2184 msleep(10); 2185 } 2186 } 2187 2188 /** 2189 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2190 * @vport: pointer to a virtual N_Port data structure. 2191 * 2192 * This routine stops all the timers associated with a @vport. This function 2193 * is invoked before disabling or deleting a @vport. Note that the physical 2194 * port is treated as @vport 0. 2195 **/ 2196 void 2197 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2198 { 2199 del_timer_sync(&vport->els_tmofunc); 2200 del_timer_sync(&vport->fc_fdmitmo); 2201 lpfc_can_disctmo(vport); 2202 return; 2203 } 2204 2205 /** 2206 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2207 * @phba: pointer to lpfc hba data structure. 2208 * 2209 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2210 * caller of this routine should already hold the host lock. 2211 **/ 2212 void 2213 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2214 { 2215 /* Clear pending FCF rediscovery wait and failover in progress flags */ 2216 phba->fcf.fcf_flag &= ~(FCF_REDISC_PEND | 2217 FCF_DEAD_DISC | 2218 FCF_ACVL_DISC); 2219 /* Now, try to stop the timer */ 2220 del_timer(&phba->fcf.redisc_wait); 2221 } 2222 2223 /** 2224 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2225 * @phba: pointer to lpfc hba data structure. 2226 * 2227 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2228 * checks whether the FCF rediscovery wait timer is pending with the host 2229 * lock held before proceeding with disabling the timer and clearing the 2230 * wait timer pendig flag. 2231 **/ 2232 void 2233 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2234 { 2235 spin_lock_irq(&phba->hbalock); 2236 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2237 /* FCF rediscovery timer already fired or stopped */ 2238 spin_unlock_irq(&phba->hbalock); 2239 return; 2240 } 2241 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2242 spin_unlock_irq(&phba->hbalock); 2243 } 2244 2245 /** 2246 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2247 * @phba: pointer to lpfc hba data structure. 2248 * 2249 * This routine stops all the timers associated with a HBA. This function is 2250 * invoked before either putting a HBA offline or unloading the driver. 2251 **/ 2252 void 2253 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2254 { 2255 lpfc_stop_vport_timers(phba->pport); 2256 del_timer_sync(&phba->sli.mbox_tmo); 2257 del_timer_sync(&phba->fabric_block_timer); 2258 del_timer_sync(&phba->eratt_poll); 2259 del_timer_sync(&phba->hb_tmofunc); 2260 phba->hb_outstanding = 0; 2261 2262 switch (phba->pci_dev_grp) { 2263 case LPFC_PCI_DEV_LP: 2264 /* Stop any LightPulse device specific driver timers */ 2265 del_timer_sync(&phba->fcp_poll_timer); 2266 break; 2267 case LPFC_PCI_DEV_OC: 2268 /* Stop any OneConnect device sepcific driver timers */ 2269 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2270 break; 2271 default: 2272 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2273 "0297 Invalid device group (x%x)\n", 2274 phba->pci_dev_grp); 2275 break; 2276 } 2277 return; 2278 } 2279 2280 /** 2281 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2282 * @phba: pointer to lpfc hba data structure. 2283 * 2284 * This routine marks a HBA's management interface as blocked. Once the HBA's 2285 * management interface is marked as blocked, all the user space access to 2286 * the HBA, whether they are from sysfs interface or libdfc interface will 2287 * all be blocked. The HBA is set to block the management interface when the 2288 * driver prepares the HBA interface for online or offline. 2289 **/ 2290 static void 2291 lpfc_block_mgmt_io(struct lpfc_hba * phba) 2292 { 2293 unsigned long iflag; 2294 uint8_t actcmd = MBX_HEARTBEAT; 2295 unsigned long timeout; 2296 2297 2298 spin_lock_irqsave(&phba->hbalock, iflag); 2299 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2300 if (phba->sli.mbox_active) 2301 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2302 spin_unlock_irqrestore(&phba->hbalock, iflag); 2303 /* Determine how long we might wait for the active mailbox 2304 * command to be gracefully completed by firmware. 2305 */ 2306 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) + 2307 jiffies; 2308 /* Wait for the outstnading mailbox command to complete */ 2309 while (phba->sli.mbox_active) { 2310 /* Check active mailbox complete status every 2ms */ 2311 msleep(2); 2312 if (time_after(jiffies, timeout)) { 2313 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2314 "2813 Mgmt IO is Blocked %x " 2315 "- mbox cmd %x still active\n", 2316 phba->sli.sli_flag, actcmd); 2317 break; 2318 } 2319 } 2320 } 2321 2322 /** 2323 * lpfc_online - Initialize and bring a HBA online 2324 * @phba: pointer to lpfc hba data structure. 2325 * 2326 * This routine initializes the HBA and brings a HBA online. During this 2327 * process, the management interface is blocked to prevent user space access 2328 * to the HBA interfering with the driver initialization. 2329 * 2330 * Return codes 2331 * 0 - successful 2332 * 1 - failed 2333 **/ 2334 int 2335 lpfc_online(struct lpfc_hba *phba) 2336 { 2337 struct lpfc_vport *vport; 2338 struct lpfc_vport **vports; 2339 int i; 2340 2341 if (!phba) 2342 return 0; 2343 vport = phba->pport; 2344 2345 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2346 return 0; 2347 2348 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2349 "0458 Bring Adapter online\n"); 2350 2351 lpfc_block_mgmt_io(phba); 2352 2353 if (!lpfc_sli_queue_setup(phba)) { 2354 lpfc_unblock_mgmt_io(phba); 2355 return 1; 2356 } 2357 2358 if (phba->sli_rev == LPFC_SLI_REV4) { 2359 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2360 lpfc_unblock_mgmt_io(phba); 2361 return 1; 2362 } 2363 } else { 2364 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2365 lpfc_unblock_mgmt_io(phba); 2366 return 1; 2367 } 2368 } 2369 2370 vports = lpfc_create_vport_work_array(phba); 2371 if (vports != NULL) 2372 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2373 struct Scsi_Host *shost; 2374 shost = lpfc_shost_from_vport(vports[i]); 2375 spin_lock_irq(shost->host_lock); 2376 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2377 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2378 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2379 if (phba->sli_rev == LPFC_SLI_REV4) 2380 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2381 spin_unlock_irq(shost->host_lock); 2382 } 2383 lpfc_destroy_vport_work_array(phba, vports); 2384 2385 lpfc_unblock_mgmt_io(phba); 2386 return 0; 2387 } 2388 2389 /** 2390 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2391 * @phba: pointer to lpfc hba data structure. 2392 * 2393 * This routine marks a HBA's management interface as not blocked. Once the 2394 * HBA's management interface is marked as not blocked, all the user space 2395 * access to the HBA, whether they are from sysfs interface or libdfc 2396 * interface will be allowed. The HBA is set to block the management interface 2397 * when the driver prepares the HBA interface for online or offline and then 2398 * set to unblock the management interface afterwards. 2399 **/ 2400 void 2401 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2402 { 2403 unsigned long iflag; 2404 2405 spin_lock_irqsave(&phba->hbalock, iflag); 2406 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2407 spin_unlock_irqrestore(&phba->hbalock, iflag); 2408 } 2409 2410 /** 2411 * lpfc_offline_prep - Prepare a HBA to be brought offline 2412 * @phba: pointer to lpfc hba data structure. 2413 * 2414 * This routine is invoked to prepare a HBA to be brought offline. It performs 2415 * unregistration login to all the nodes on all vports and flushes the mailbox 2416 * queue to make it ready to be brought offline. 2417 **/ 2418 void 2419 lpfc_offline_prep(struct lpfc_hba * phba) 2420 { 2421 struct lpfc_vport *vport = phba->pport; 2422 struct lpfc_nodelist *ndlp, *next_ndlp; 2423 struct lpfc_vport **vports; 2424 struct Scsi_Host *shost; 2425 int i; 2426 2427 if (vport->fc_flag & FC_OFFLINE_MODE) 2428 return; 2429 2430 lpfc_block_mgmt_io(phba); 2431 2432 lpfc_linkdown(phba); 2433 2434 /* Issue an unreg_login to all nodes on all vports */ 2435 vports = lpfc_create_vport_work_array(phba); 2436 if (vports != NULL) { 2437 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2438 if (vports[i]->load_flag & FC_UNLOADING) 2439 continue; 2440 shost = lpfc_shost_from_vport(vports[i]); 2441 spin_lock_irq(shost->host_lock); 2442 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2443 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2444 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2445 spin_unlock_irq(shost->host_lock); 2446 2447 shost = lpfc_shost_from_vport(vports[i]); 2448 list_for_each_entry_safe(ndlp, next_ndlp, 2449 &vports[i]->fc_nodes, 2450 nlp_listp) { 2451 if (!NLP_CHK_NODE_ACT(ndlp)) 2452 continue; 2453 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2454 continue; 2455 if (ndlp->nlp_type & NLP_FABRIC) { 2456 lpfc_disc_state_machine(vports[i], ndlp, 2457 NULL, NLP_EVT_DEVICE_RECOVERY); 2458 lpfc_disc_state_machine(vports[i], ndlp, 2459 NULL, NLP_EVT_DEVICE_RM); 2460 } 2461 spin_lock_irq(shost->host_lock); 2462 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2463 spin_unlock_irq(shost->host_lock); 2464 lpfc_unreg_rpi(vports[i], ndlp); 2465 } 2466 } 2467 } 2468 lpfc_destroy_vport_work_array(phba, vports); 2469 2470 lpfc_sli_mbox_sys_shutdown(phba); 2471 } 2472 2473 /** 2474 * lpfc_offline - Bring a HBA offline 2475 * @phba: pointer to lpfc hba data structure. 2476 * 2477 * This routine actually brings a HBA offline. It stops all the timers 2478 * associated with the HBA, brings down the SLI layer, and eventually 2479 * marks the HBA as in offline state for the upper layer protocol. 2480 **/ 2481 void 2482 lpfc_offline(struct lpfc_hba *phba) 2483 { 2484 struct Scsi_Host *shost; 2485 struct lpfc_vport **vports; 2486 int i; 2487 2488 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2489 return; 2490 2491 /* stop port and all timers associated with this hba */ 2492 lpfc_stop_port(phba); 2493 vports = lpfc_create_vport_work_array(phba); 2494 if (vports != NULL) 2495 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2496 lpfc_stop_vport_timers(vports[i]); 2497 lpfc_destroy_vport_work_array(phba, vports); 2498 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2499 "0460 Bring Adapter offline\n"); 2500 /* Bring down the SLI Layer and cleanup. The HBA is offline 2501 now. */ 2502 lpfc_sli_hba_down(phba); 2503 spin_lock_irq(&phba->hbalock); 2504 phba->work_ha = 0; 2505 spin_unlock_irq(&phba->hbalock); 2506 vports = lpfc_create_vport_work_array(phba); 2507 if (vports != NULL) 2508 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2509 shost = lpfc_shost_from_vport(vports[i]); 2510 spin_lock_irq(shost->host_lock); 2511 vports[i]->work_port_events = 0; 2512 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2513 spin_unlock_irq(shost->host_lock); 2514 } 2515 lpfc_destroy_vport_work_array(phba, vports); 2516 } 2517 2518 /** 2519 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2520 * @phba: pointer to lpfc hba data structure. 2521 * 2522 * This routine is to free all the SCSI buffers and IOCBs from the driver 2523 * list back to kernel. It is called from lpfc_pci_remove_one to free 2524 * the internal resources before the device is removed from the system. 2525 * 2526 * Return codes 2527 * 0 - successful (for now, it always returns 0) 2528 **/ 2529 static int 2530 lpfc_scsi_free(struct lpfc_hba *phba) 2531 { 2532 struct lpfc_scsi_buf *sb, *sb_next; 2533 struct lpfc_iocbq *io, *io_next; 2534 2535 spin_lock_irq(&phba->hbalock); 2536 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2537 spin_lock(&phba->scsi_buf_list_lock); 2538 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2539 list_del(&sb->list); 2540 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2541 sb->dma_handle); 2542 kfree(sb); 2543 phba->total_scsi_bufs--; 2544 } 2545 spin_unlock(&phba->scsi_buf_list_lock); 2546 2547 /* Release all the lpfc_iocbq entries maintained by this host. */ 2548 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2549 list_del(&io->list); 2550 kfree(io); 2551 phba->total_iocbq_bufs--; 2552 } 2553 spin_unlock_irq(&phba->hbalock); 2554 return 0; 2555 } 2556 2557 /** 2558 * lpfc_create_port - Create an FC port 2559 * @phba: pointer to lpfc hba data structure. 2560 * @instance: a unique integer ID to this FC port. 2561 * @dev: pointer to the device data structure. 2562 * 2563 * This routine creates a FC port for the upper layer protocol. The FC port 2564 * can be created on top of either a physical port or a virtual port provided 2565 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2566 * and associates the FC port created before adding the shost into the SCSI 2567 * layer. 2568 * 2569 * Return codes 2570 * @vport - pointer to the virtual N_Port data structure. 2571 * NULL - port create failed. 2572 **/ 2573 struct lpfc_vport * 2574 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2575 { 2576 struct lpfc_vport *vport; 2577 struct Scsi_Host *shost; 2578 int error = 0; 2579 2580 if (dev != &phba->pcidev->dev) 2581 shost = scsi_host_alloc(&lpfc_vport_template, 2582 sizeof(struct lpfc_vport)); 2583 else 2584 shost = scsi_host_alloc(&lpfc_template, 2585 sizeof(struct lpfc_vport)); 2586 if (!shost) 2587 goto out; 2588 2589 vport = (struct lpfc_vport *) shost->hostdata; 2590 vport->phba = phba; 2591 vport->load_flag |= FC_LOADING; 2592 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2593 vport->fc_rscn_flush = 0; 2594 2595 lpfc_get_vport_cfgparam(vport); 2596 shost->unique_id = instance; 2597 shost->max_id = LPFC_MAX_TARGET; 2598 shost->max_lun = vport->cfg_max_luns; 2599 shost->this_id = -1; 2600 shost->max_cmd_len = 16; 2601 if (phba->sli_rev == LPFC_SLI_REV4) { 2602 shost->dma_boundary = 2603 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 2604 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2605 } 2606 2607 /* 2608 * Set initial can_queue value since 0 is no longer supported and 2609 * scsi_add_host will fail. This will be adjusted later based on the 2610 * max xri value determined in hba setup. 2611 */ 2612 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2613 if (dev != &phba->pcidev->dev) { 2614 shost->transportt = lpfc_vport_transport_template; 2615 vport->port_type = LPFC_NPIV_PORT; 2616 } else { 2617 shost->transportt = lpfc_transport_template; 2618 vport->port_type = LPFC_PHYSICAL_PORT; 2619 } 2620 2621 /* Initialize all internally managed lists. */ 2622 INIT_LIST_HEAD(&vport->fc_nodes); 2623 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2624 spin_lock_init(&vport->work_port_lock); 2625 2626 init_timer(&vport->fc_disctmo); 2627 vport->fc_disctmo.function = lpfc_disc_timeout; 2628 vport->fc_disctmo.data = (unsigned long)vport; 2629 2630 init_timer(&vport->fc_fdmitmo); 2631 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2632 vport->fc_fdmitmo.data = (unsigned long)vport; 2633 2634 init_timer(&vport->els_tmofunc); 2635 vport->els_tmofunc.function = lpfc_els_timeout; 2636 vport->els_tmofunc.data = (unsigned long)vport; 2637 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 2638 if (error) 2639 goto out_put_shost; 2640 2641 spin_lock_irq(&phba->hbalock); 2642 list_add_tail(&vport->listentry, &phba->port_list); 2643 spin_unlock_irq(&phba->hbalock); 2644 return vport; 2645 2646 out_put_shost: 2647 scsi_host_put(shost); 2648 out: 2649 return NULL; 2650 } 2651 2652 /** 2653 * destroy_port - destroy an FC port 2654 * @vport: pointer to an lpfc virtual N_Port data structure. 2655 * 2656 * This routine destroys a FC port from the upper layer protocol. All the 2657 * resources associated with the port are released. 2658 **/ 2659 void 2660 destroy_port(struct lpfc_vport *vport) 2661 { 2662 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2663 struct lpfc_hba *phba = vport->phba; 2664 2665 lpfc_debugfs_terminate(vport); 2666 fc_remove_host(shost); 2667 scsi_remove_host(shost); 2668 2669 spin_lock_irq(&phba->hbalock); 2670 list_del_init(&vport->listentry); 2671 spin_unlock_irq(&phba->hbalock); 2672 2673 lpfc_cleanup(vport); 2674 return; 2675 } 2676 2677 /** 2678 * lpfc_get_instance - Get a unique integer ID 2679 * 2680 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2681 * uses the kernel idr facility to perform the task. 2682 * 2683 * Return codes: 2684 * instance - a unique integer ID allocated as the new instance. 2685 * -1 - lpfc get instance failed. 2686 **/ 2687 int 2688 lpfc_get_instance(void) 2689 { 2690 int instance = 0; 2691 2692 /* Assign an unused number */ 2693 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2694 return -1; 2695 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2696 return -1; 2697 return instance; 2698 } 2699 2700 /** 2701 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2702 * @shost: pointer to SCSI host data structure. 2703 * @time: elapsed time of the scan in jiffies. 2704 * 2705 * This routine is called by the SCSI layer with a SCSI host to determine 2706 * whether the scan host is finished. 2707 * 2708 * Note: there is no scan_start function as adapter initialization will have 2709 * asynchronously kicked off the link initialization. 2710 * 2711 * Return codes 2712 * 0 - SCSI host scan is not over yet. 2713 * 1 - SCSI host scan is over. 2714 **/ 2715 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2716 { 2717 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2718 struct lpfc_hba *phba = vport->phba; 2719 int stat = 0; 2720 2721 spin_lock_irq(shost->host_lock); 2722 2723 if (vport->load_flag & FC_UNLOADING) { 2724 stat = 1; 2725 goto finished; 2726 } 2727 if (time >= 30 * HZ) { 2728 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2729 "0461 Scanning longer than 30 " 2730 "seconds. Continuing initialization\n"); 2731 stat = 1; 2732 goto finished; 2733 } 2734 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2735 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2736 "0465 Link down longer than 15 " 2737 "seconds. Continuing initialization\n"); 2738 stat = 1; 2739 goto finished; 2740 } 2741 2742 if (vport->port_state != LPFC_VPORT_READY) 2743 goto finished; 2744 if (vport->num_disc_nodes || vport->fc_prli_sent) 2745 goto finished; 2746 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2747 goto finished; 2748 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2749 goto finished; 2750 2751 stat = 1; 2752 2753 finished: 2754 spin_unlock_irq(shost->host_lock); 2755 return stat; 2756 } 2757 2758 /** 2759 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 2760 * @shost: pointer to SCSI host data structure. 2761 * 2762 * This routine initializes a given SCSI host attributes on a FC port. The 2763 * SCSI host can be either on top of a physical port or a virtual port. 2764 **/ 2765 void lpfc_host_attrib_init(struct Scsi_Host *shost) 2766 { 2767 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2768 struct lpfc_hba *phba = vport->phba; 2769 /* 2770 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2771 */ 2772 2773 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2774 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2775 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2776 2777 memset(fc_host_supported_fc4s(shost), 0, 2778 sizeof(fc_host_supported_fc4s(shost))); 2779 fc_host_supported_fc4s(shost)[2] = 1; 2780 fc_host_supported_fc4s(shost)[7] = 1; 2781 2782 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2783 sizeof fc_host_symbolic_name(shost)); 2784 2785 fc_host_supported_speeds(shost) = 0; 2786 if (phba->lmt & LMT_10Gb) 2787 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2788 if (phba->lmt & LMT_8Gb) 2789 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2790 if (phba->lmt & LMT_4Gb) 2791 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2792 if (phba->lmt & LMT_2Gb) 2793 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2794 if (phba->lmt & LMT_1Gb) 2795 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2796 2797 fc_host_maxframe_size(shost) = 2798 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2799 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2800 2801 /* This value is also unchanging */ 2802 memset(fc_host_active_fc4s(shost), 0, 2803 sizeof(fc_host_active_fc4s(shost))); 2804 fc_host_active_fc4s(shost)[2] = 1; 2805 fc_host_active_fc4s(shost)[7] = 1; 2806 2807 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2808 spin_lock_irq(shost->host_lock); 2809 vport->load_flag &= ~FC_LOADING; 2810 spin_unlock_irq(shost->host_lock); 2811 } 2812 2813 /** 2814 * lpfc_stop_port_s3 - Stop SLI3 device port 2815 * @phba: pointer to lpfc hba data structure. 2816 * 2817 * This routine is invoked to stop an SLI3 device port, it stops the device 2818 * from generating interrupts and stops the device driver's timers for the 2819 * device. 2820 **/ 2821 static void 2822 lpfc_stop_port_s3(struct lpfc_hba *phba) 2823 { 2824 /* Clear all interrupt enable conditions */ 2825 writel(0, phba->HCregaddr); 2826 readl(phba->HCregaddr); /* flush */ 2827 /* Clear all pending interrupts */ 2828 writel(0xffffffff, phba->HAregaddr); 2829 readl(phba->HAregaddr); /* flush */ 2830 2831 /* Reset some HBA SLI setup states */ 2832 lpfc_stop_hba_timers(phba); 2833 phba->pport->work_port_events = 0; 2834 } 2835 2836 /** 2837 * lpfc_stop_port_s4 - Stop SLI4 device port 2838 * @phba: pointer to lpfc hba data structure. 2839 * 2840 * This routine is invoked to stop an SLI4 device port, it stops the device 2841 * from generating interrupts and stops the device driver's timers for the 2842 * device. 2843 **/ 2844 static void 2845 lpfc_stop_port_s4(struct lpfc_hba *phba) 2846 { 2847 /* Reset some HBA SLI4 setup states */ 2848 lpfc_stop_hba_timers(phba); 2849 phba->pport->work_port_events = 0; 2850 phba->sli4_hba.intr_enable = 0; 2851 } 2852 2853 /** 2854 * lpfc_stop_port - Wrapper function for stopping hba port 2855 * @phba: Pointer to HBA context object. 2856 * 2857 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 2858 * the API jump table function pointer from the lpfc_hba struct. 2859 **/ 2860 void 2861 lpfc_stop_port(struct lpfc_hba *phba) 2862 { 2863 phba->lpfc_stop_port(phba); 2864 } 2865 2866 /** 2867 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port. 2868 * @phba: pointer to lpfc hba data structure. 2869 * 2870 * This routine is invoked to remove the driver default fcf record from 2871 * the port. This routine currently acts on FCF Index 0. 2872 * 2873 **/ 2874 void 2875 lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba) 2876 { 2877 int rc = 0; 2878 LPFC_MBOXQ_t *mboxq; 2879 struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record; 2880 uint32_t mbox_tmo, req_len; 2881 uint32_t shdr_status, shdr_add_status; 2882 2883 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2884 if (!mboxq) { 2885 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2886 "2020 Failed to allocate mbox for ADD_FCF cmd\n"); 2887 return; 2888 } 2889 2890 req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) - 2891 sizeof(struct lpfc_sli4_cfg_mhdr); 2892 rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, 2893 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF, 2894 req_len, LPFC_SLI4_MBX_EMBED); 2895 /* 2896 * In phase 1, there is a single FCF index, 0. In phase2, the driver 2897 * supports multiple FCF indices. 2898 */ 2899 del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry; 2900 bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1); 2901 bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record, 2902 phba->fcf.current_rec.fcf_indx); 2903 2904 if (!phba->sli4_hba.intr_enable) 2905 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 2906 else { 2907 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 2908 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 2909 } 2910 /* The IOCTL status is embedded in the mailbox subheader. */ 2911 shdr_status = bf_get(lpfc_mbox_hdr_status, 2912 &del_fcf_record->header.cfg_shdr.response); 2913 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 2914 &del_fcf_record->header.cfg_shdr.response); 2915 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 2916 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2917 "2516 DEL FCF of default FCF Index failed " 2918 "mbx status x%x, status x%x add_status x%x\n", 2919 rc, shdr_status, shdr_add_status); 2920 } 2921 if (rc != MBX_TIMEOUT) 2922 mempool_free(mboxq, phba->mbox_mem_pool); 2923 } 2924 2925 /** 2926 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 2927 * @phba: Pointer to hba for which this call is being executed. 2928 * 2929 * This routine starts the timer waiting for the FCF rediscovery to complete. 2930 **/ 2931 void 2932 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 2933 { 2934 unsigned long fcf_redisc_wait_tmo = 2935 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 2936 /* Start fcf rediscovery wait period timer */ 2937 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 2938 spin_lock_irq(&phba->hbalock); 2939 /* Allow action to new fcf asynchronous event */ 2940 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2941 /* Mark the FCF rediscovery pending state */ 2942 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 2943 spin_unlock_irq(&phba->hbalock); 2944 } 2945 2946 /** 2947 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 2948 * @ptr: Map to lpfc_hba data structure pointer. 2949 * 2950 * This routine is invoked when waiting for FCF table rediscover has been 2951 * timed out. If new FCF record(s) has (have) been discovered during the 2952 * wait period, a new FCF event shall be added to the FCOE async event 2953 * list, and then worker thread shall be waked up for processing from the 2954 * worker thread context. 2955 **/ 2956 void 2957 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 2958 { 2959 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 2960 2961 /* Don't send FCF rediscovery event if timer cancelled */ 2962 spin_lock_irq(&phba->hbalock); 2963 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2964 spin_unlock_irq(&phba->hbalock); 2965 return; 2966 } 2967 /* Clear FCF rediscovery timer pending flag */ 2968 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2969 /* FCF rediscovery event to worker thread */ 2970 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 2971 spin_unlock_irq(&phba->hbalock); 2972 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2973 "2776 FCF rediscover wait timer expired, post " 2974 "a worker thread event for FCF table scan\n"); 2975 /* wake up worker thread */ 2976 lpfc_worker_wake_up(phba); 2977 } 2978 2979 /** 2980 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support 2981 * @phba: pointer to lpfc hba data structure. 2982 * 2983 * This function uses the QUERY_FW_CFG mailbox command to determine if the 2984 * firmware loaded supports FCoE. A return of zero indicates that the mailbox 2985 * was successful and the firmware supports FCoE. Any other return indicates 2986 * a error. It is assumed that this function will be called before interrupts 2987 * are enabled. 2988 **/ 2989 static int 2990 lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba) 2991 { 2992 int rc = 0; 2993 LPFC_MBOXQ_t *mboxq; 2994 struct lpfc_mbx_query_fw_cfg *query_fw_cfg; 2995 uint32_t length; 2996 uint32_t shdr_status, shdr_add_status; 2997 2998 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2999 if (!mboxq) { 3000 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3001 "2621 Failed to allocate mbox for " 3002 "query firmware config cmd\n"); 3003 return -ENOMEM; 3004 } 3005 query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg; 3006 length = (sizeof(struct lpfc_mbx_query_fw_cfg) - 3007 sizeof(struct lpfc_sli4_cfg_mhdr)); 3008 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 3009 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 3010 length, LPFC_SLI4_MBX_EMBED); 3011 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 3012 /* The IOCTL status is embedded in the mailbox subheader. */ 3013 shdr_status = bf_get(lpfc_mbox_hdr_status, 3014 &query_fw_cfg->header.cfg_shdr.response); 3015 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 3016 &query_fw_cfg->header.cfg_shdr.response); 3017 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 3018 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3019 "2622 Query Firmware Config failed " 3020 "mbx status x%x, status x%x add_status x%x\n", 3021 rc, shdr_status, shdr_add_status); 3022 return -EINVAL; 3023 } 3024 if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) { 3025 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3026 "2623 FCoE Function not supported by firmware. " 3027 "Function mode = %08x\n", 3028 query_fw_cfg->function_mode); 3029 return -EINVAL; 3030 } 3031 if (rc != MBX_TIMEOUT) 3032 mempool_free(mboxq, phba->mbox_mem_pool); 3033 return 0; 3034 } 3035 3036 /** 3037 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3038 * @phba: pointer to lpfc hba data structure. 3039 * @acqe_link: pointer to the async link completion queue entry. 3040 * 3041 * This routine is to parse the SLI4 link-attention link fault code and 3042 * translate it into the base driver's read link attention mailbox command 3043 * status. 3044 * 3045 * Return: Link-attention status in terms of base driver's coding. 3046 **/ 3047 static uint16_t 3048 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3049 struct lpfc_acqe_link *acqe_link) 3050 { 3051 uint16_t latt_fault; 3052 3053 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3054 case LPFC_ASYNC_LINK_FAULT_NONE: 3055 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3056 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3057 latt_fault = 0; 3058 break; 3059 default: 3060 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3061 "0398 Invalid link fault code: x%x\n", 3062 bf_get(lpfc_acqe_link_fault, acqe_link)); 3063 latt_fault = MBXERR_ERROR; 3064 break; 3065 } 3066 return latt_fault; 3067 } 3068 3069 /** 3070 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3071 * @phba: pointer to lpfc hba data structure. 3072 * @acqe_link: pointer to the async link completion queue entry. 3073 * 3074 * This routine is to parse the SLI4 link attention type and translate it 3075 * into the base driver's link attention type coding. 3076 * 3077 * Return: Link attention type in terms of base driver's coding. 3078 **/ 3079 static uint8_t 3080 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3081 struct lpfc_acqe_link *acqe_link) 3082 { 3083 uint8_t att_type; 3084 3085 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3086 case LPFC_ASYNC_LINK_STATUS_DOWN: 3087 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3088 att_type = AT_LINK_DOWN; 3089 break; 3090 case LPFC_ASYNC_LINK_STATUS_UP: 3091 /* Ignore physical link up events - wait for logical link up */ 3092 att_type = AT_RESERVED; 3093 break; 3094 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3095 att_type = AT_LINK_UP; 3096 break; 3097 default: 3098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3099 "0399 Invalid link attention type: x%x\n", 3100 bf_get(lpfc_acqe_link_status, acqe_link)); 3101 att_type = AT_RESERVED; 3102 break; 3103 } 3104 return att_type; 3105 } 3106 3107 /** 3108 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3109 * @phba: pointer to lpfc hba data structure. 3110 * @acqe_link: pointer to the async link completion queue entry. 3111 * 3112 * This routine is to parse the SLI4 link-attention link speed and translate 3113 * it into the base driver's link-attention link speed coding. 3114 * 3115 * Return: Link-attention link speed in terms of base driver's coding. 3116 **/ 3117 static uint8_t 3118 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3119 struct lpfc_acqe_link *acqe_link) 3120 { 3121 uint8_t link_speed; 3122 3123 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3124 case LPFC_ASYNC_LINK_SPEED_ZERO: 3125 link_speed = LA_UNKNW_LINK; 3126 break; 3127 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3128 link_speed = LA_UNKNW_LINK; 3129 break; 3130 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3131 link_speed = LA_UNKNW_LINK; 3132 break; 3133 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3134 link_speed = LA_1GHZ_LINK; 3135 break; 3136 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3137 link_speed = LA_10GHZ_LINK; 3138 break; 3139 default: 3140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3141 "0483 Invalid link-attention link speed: x%x\n", 3142 bf_get(lpfc_acqe_link_speed, acqe_link)); 3143 link_speed = LA_UNKNW_LINK; 3144 break; 3145 } 3146 return link_speed; 3147 } 3148 3149 /** 3150 * lpfc_sli4_async_link_evt - Process the asynchronous link event 3151 * @phba: pointer to lpfc hba data structure. 3152 * @acqe_link: pointer to the async link completion queue entry. 3153 * 3154 * This routine is to handle the SLI4 asynchronous link event. 3155 **/ 3156 static void 3157 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3158 struct lpfc_acqe_link *acqe_link) 3159 { 3160 struct lpfc_dmabuf *mp; 3161 LPFC_MBOXQ_t *pmb; 3162 MAILBOX_t *mb; 3163 READ_LA_VAR *la; 3164 uint8_t att_type; 3165 3166 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3167 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP) 3168 return; 3169 phba->fcoe_eventtag = acqe_link->event_tag; 3170 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3171 if (!pmb) { 3172 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3173 "0395 The mboxq allocation failed\n"); 3174 return; 3175 } 3176 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3177 if (!mp) { 3178 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3179 "0396 The lpfc_dmabuf allocation failed\n"); 3180 goto out_free_pmb; 3181 } 3182 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3183 if (!mp->virt) { 3184 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3185 "0397 The mbuf allocation failed\n"); 3186 goto out_free_dmabuf; 3187 } 3188 3189 /* Cleanup any outstanding ELS commands */ 3190 lpfc_els_flush_all_cmd(phba); 3191 3192 /* Block ELS IOCBs until we have done process link event */ 3193 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3194 3195 /* Update link event statistics */ 3196 phba->sli.slistat.link_event++; 3197 3198 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */ 3199 lpfc_read_la(phba, pmb, mp); 3200 pmb->vport = phba->pport; 3201 3202 /* Parse and translate status field */ 3203 mb = &pmb->u.mb; 3204 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3205 3206 /* Parse and translate link attention fields */ 3207 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA; 3208 la->eventTag = acqe_link->event_tag; 3209 la->attType = att_type; 3210 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link); 3211 3212 /* Fake the the following irrelvant fields */ 3213 la->topology = TOPOLOGY_PT_PT; 3214 la->granted_AL_PA = 0; 3215 la->il = 0; 3216 la->pb = 0; 3217 la->fa = 0; 3218 la->mm = 0; 3219 3220 /* Keep the link status for extra SLI4 state machine reference */ 3221 phba->sli4_hba.link_state.speed = 3222 bf_get(lpfc_acqe_link_speed, acqe_link); 3223 phba->sli4_hba.link_state.duplex = 3224 bf_get(lpfc_acqe_link_duplex, acqe_link); 3225 phba->sli4_hba.link_state.status = 3226 bf_get(lpfc_acqe_link_status, acqe_link); 3227 phba->sli4_hba.link_state.physical = 3228 bf_get(lpfc_acqe_link_physical, acqe_link); 3229 phba->sli4_hba.link_state.fault = 3230 bf_get(lpfc_acqe_link_fault, acqe_link); 3231 phba->sli4_hba.link_state.logical_speed = 3232 bf_get(lpfc_acqe_qos_link_speed, acqe_link); 3233 3234 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3235 lpfc_mbx_cmpl_read_la(phba, pmb); 3236 3237 return; 3238 3239 out_free_dmabuf: 3240 kfree(mp); 3241 out_free_pmb: 3242 mempool_free(pmb, phba->mbox_mem_pool); 3243 } 3244 3245 /** 3246 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3247 * @vport: pointer to vport data structure. 3248 * 3249 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3250 * response to a CVL event. 3251 * 3252 * Return the pointer to the ndlp with the vport if successful, otherwise 3253 * return NULL. 3254 **/ 3255 static struct lpfc_nodelist * 3256 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3257 { 3258 struct lpfc_nodelist *ndlp; 3259 struct Scsi_Host *shost; 3260 struct lpfc_hba *phba; 3261 3262 if (!vport) 3263 return NULL; 3264 phba = vport->phba; 3265 if (!phba) 3266 return NULL; 3267 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3268 if (!ndlp) { 3269 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3270 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3271 if (!ndlp) 3272 return 0; 3273 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3274 /* Set the node type */ 3275 ndlp->nlp_type |= NLP_FABRIC; 3276 /* Put ndlp onto node list */ 3277 lpfc_enqueue_node(vport, ndlp); 3278 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3279 /* re-setup ndlp without removing from node list */ 3280 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3281 if (!ndlp) 3282 return 0; 3283 } 3284 if (phba->pport->port_state <= LPFC_FLOGI) 3285 return NULL; 3286 /* If virtual link is not yet instantiated ignore CVL */ 3287 if (vport->port_state <= LPFC_FDISC) 3288 return NULL; 3289 shost = lpfc_shost_from_vport(vport); 3290 if (!shost) 3291 return NULL; 3292 lpfc_linkdown_port(vport); 3293 lpfc_cleanup_pending_mbox(vport); 3294 spin_lock_irq(shost->host_lock); 3295 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3296 spin_unlock_irq(shost->host_lock); 3297 3298 return ndlp; 3299 } 3300 3301 /** 3302 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3303 * @vport: pointer to lpfc hba data structure. 3304 * 3305 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3306 * response to a FCF dead event. 3307 **/ 3308 static void 3309 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3310 { 3311 struct lpfc_vport **vports; 3312 int i; 3313 3314 vports = lpfc_create_vport_work_array(phba); 3315 if (vports) 3316 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3317 lpfc_sli4_perform_vport_cvl(vports[i]); 3318 lpfc_destroy_vport_work_array(phba, vports); 3319 } 3320 3321 /** 3322 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event 3323 * @phba: pointer to lpfc hba data structure. 3324 * @acqe_link: pointer to the async fcoe completion queue entry. 3325 * 3326 * This routine is to handle the SLI4 asynchronous fcoe event. 3327 **/ 3328 static void 3329 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, 3330 struct lpfc_acqe_fcoe *acqe_fcoe) 3331 { 3332 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe); 3333 int rc; 3334 struct lpfc_vport *vport; 3335 struct lpfc_nodelist *ndlp; 3336 struct Scsi_Host *shost; 3337 int active_vlink_present; 3338 struct lpfc_vport **vports; 3339 int i; 3340 3341 phba->fc_eventTag = acqe_fcoe->event_tag; 3342 phba->fcoe_eventtag = acqe_fcoe->event_tag; 3343 switch (event_type) { 3344 case LPFC_FCOE_EVENT_TYPE_NEW_FCF: 3345 case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD: 3346 if (event_type == LPFC_FCOE_EVENT_TYPE_NEW_FCF) 3347 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3348 LOG_DISCOVERY, 3349 "2546 New FCF found event: " 3350 "evt_tag:x%x, fcf_index:x%x\n", 3351 acqe_fcoe->event_tag, 3352 acqe_fcoe->index); 3353 else 3354 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 3355 LOG_DISCOVERY, 3356 "2788 FCF parameter modified event: " 3357 "evt_tag:x%x, fcf_index:x%x\n", 3358 acqe_fcoe->event_tag, 3359 acqe_fcoe->index); 3360 /* If the FCF discovery is in progress, do nothing. */ 3361 spin_lock_irq(&phba->hbalock); 3362 if (phba->hba_flag & FCF_DISC_INPROGRESS) { 3363 spin_unlock_irq(&phba->hbalock); 3364 break; 3365 } 3366 /* If fast FCF failover rescan event is pending, do nothing */ 3367 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 3368 spin_unlock_irq(&phba->hbalock); 3369 break; 3370 } 3371 spin_unlock_irq(&phba->hbalock); 3372 3373 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && 3374 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 3375 /* 3376 * During period of FCF discovery, read the FCF 3377 * table record indexed by the event to update 3378 * FCF round robin failover eligible FCF bmask. 3379 */ 3380 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3381 LOG_DISCOVERY, 3382 "2779 Read new FCF record with " 3383 "fcf_index:x%x for updating FCF " 3384 "round robin failover bmask\n", 3385 acqe_fcoe->index); 3386 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index); 3387 } 3388 /* If the FCF has been in discovered state, do nothing. */ 3389 spin_lock_irq(&phba->hbalock); 3390 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 3391 spin_unlock_irq(&phba->hbalock); 3392 break; 3393 } 3394 spin_unlock_irq(&phba->hbalock); 3395 /* Otherwise, scan the entire FCF table and re-discover SAN */ 3396 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3397 "2770 Start FCF table scan due to new FCF " 3398 "event: evt_tag:x%x, fcf_index:x%x\n", 3399 acqe_fcoe->event_tag, acqe_fcoe->index); 3400 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3401 LPFC_FCOE_FCF_GET_FIRST); 3402 if (rc) 3403 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3404 "2547 Issue FCF scan read FCF mailbox " 3405 "command failed 0x%x\n", rc); 3406 break; 3407 3408 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL: 3409 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3410 "2548 FCF Table full count 0x%x tag 0x%x\n", 3411 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe), 3412 acqe_fcoe->event_tag); 3413 break; 3414 3415 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD: 3416 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3417 "2549 FCF disconnected from network index 0x%x" 3418 " tag 0x%x\n", acqe_fcoe->index, 3419 acqe_fcoe->event_tag); 3420 /* If the event is not for currently used fcf do nothing */ 3421 if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index) 3422 break; 3423 /* We request port to rediscover the entire FCF table for 3424 * a fast recovery from case that the current FCF record 3425 * is no longer valid if we are not in the middle of FCF 3426 * failover process already. 3427 */ 3428 spin_lock_irq(&phba->hbalock); 3429 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3430 spin_unlock_irq(&phba->hbalock); 3431 /* Update FLOGI FCF failover eligible FCF bmask */ 3432 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index); 3433 break; 3434 } 3435 /* Mark the fast failover process in progress */ 3436 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 3437 spin_unlock_irq(&phba->hbalock); 3438 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3439 "2771 Start FCF fast failover process due to " 3440 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 3441 "\n", acqe_fcoe->event_tag, acqe_fcoe->index); 3442 rc = lpfc_sli4_redisc_fcf_table(phba); 3443 if (rc) { 3444 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3445 LOG_DISCOVERY, 3446 "2772 Issue FCF rediscover mabilbox " 3447 "command failed, fail through to FCF " 3448 "dead event\n"); 3449 spin_lock_irq(&phba->hbalock); 3450 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 3451 spin_unlock_irq(&phba->hbalock); 3452 /* 3453 * Last resort will fail over by treating this 3454 * as a link down to FCF registration. 3455 */ 3456 lpfc_sli4_fcf_dead_failthrough(phba); 3457 } else 3458 /* Handling fast FCF failover to a DEAD FCF event 3459 * is considered equalivant to receiving CVL to all 3460 * vports. 3461 */ 3462 lpfc_sli4_perform_all_vport_cvl(phba); 3463 break; 3464 case LPFC_FCOE_EVENT_TYPE_CVL: 3465 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3466 "2718 Clear Virtual Link Received for VPI 0x%x" 3467 " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag); 3468 vport = lpfc_find_vport_by_vpid(phba, 3469 acqe_fcoe->index - phba->vpi_base); 3470 ndlp = lpfc_sli4_perform_vport_cvl(vport); 3471 if (!ndlp) 3472 break; 3473 active_vlink_present = 0; 3474 3475 vports = lpfc_create_vport_work_array(phba); 3476 if (vports) { 3477 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 3478 i++) { 3479 if ((!(vports[i]->fc_flag & 3480 FC_VPORT_CVL_RCVD)) && 3481 (vports[i]->port_state > LPFC_FDISC)) { 3482 active_vlink_present = 1; 3483 break; 3484 } 3485 } 3486 lpfc_destroy_vport_work_array(phba, vports); 3487 } 3488 3489 if (active_vlink_present) { 3490 /* 3491 * If there are other active VLinks present, 3492 * re-instantiate the Vlink using FDISC. 3493 */ 3494 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3495 shost = lpfc_shost_from_vport(vport); 3496 spin_lock_irq(shost->host_lock); 3497 ndlp->nlp_flag |= NLP_DELAY_TMO; 3498 spin_unlock_irq(shost->host_lock); 3499 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 3500 vport->port_state = LPFC_FDISC; 3501 } else { 3502 /* 3503 * Otherwise, we request port to rediscover 3504 * the entire FCF table for a fast recovery 3505 * from possible case that the current FCF 3506 * is no longer valid if we are not already 3507 * in the FCF failover process. 3508 */ 3509 spin_lock_irq(&phba->hbalock); 3510 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3511 spin_unlock_irq(&phba->hbalock); 3512 break; 3513 } 3514 /* Mark the fast failover process in progress */ 3515 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 3516 spin_unlock_irq(&phba->hbalock); 3517 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3518 LOG_DISCOVERY, 3519 "2773 Start FCF fast failover due " 3520 "to CVL event: evt_tag:x%x\n", 3521 acqe_fcoe->event_tag); 3522 rc = lpfc_sli4_redisc_fcf_table(phba); 3523 if (rc) { 3524 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3525 LOG_DISCOVERY, 3526 "2774 Issue FCF rediscover " 3527 "mabilbox command failed, " 3528 "through to CVL event\n"); 3529 spin_lock_irq(&phba->hbalock); 3530 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 3531 spin_unlock_irq(&phba->hbalock); 3532 /* 3533 * Last resort will be re-try on the 3534 * the current registered FCF entry. 3535 */ 3536 lpfc_retry_pport_discovery(phba); 3537 } 3538 } 3539 break; 3540 default: 3541 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3542 "0288 Unknown FCoE event type 0x%x event tag " 3543 "0x%x\n", event_type, acqe_fcoe->event_tag); 3544 break; 3545 } 3546 } 3547 3548 /** 3549 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 3550 * @phba: pointer to lpfc hba data structure. 3551 * @acqe_link: pointer to the async dcbx completion queue entry. 3552 * 3553 * This routine is to handle the SLI4 asynchronous dcbx event. 3554 **/ 3555 static void 3556 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 3557 struct lpfc_acqe_dcbx *acqe_dcbx) 3558 { 3559 phba->fc_eventTag = acqe_dcbx->event_tag; 3560 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3561 "0290 The SLI4 DCBX asynchronous event is not " 3562 "handled yet\n"); 3563 } 3564 3565 /** 3566 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 3567 * @phba: pointer to lpfc hba data structure. 3568 * @acqe_link: pointer to the async grp5 completion queue entry. 3569 * 3570 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 3571 * is an asynchronous notified of a logical link speed change. The Port 3572 * reports the logical link speed in units of 10Mbps. 3573 **/ 3574 static void 3575 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 3576 struct lpfc_acqe_grp5 *acqe_grp5) 3577 { 3578 uint16_t prev_ll_spd; 3579 3580 phba->fc_eventTag = acqe_grp5->event_tag; 3581 phba->fcoe_eventtag = acqe_grp5->event_tag; 3582 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 3583 phba->sli4_hba.link_state.logical_speed = 3584 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); 3585 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3586 "2789 GRP5 Async Event: Updating logical link speed " 3587 "from %dMbps to %dMbps\n", (prev_ll_spd * 10), 3588 (phba->sli4_hba.link_state.logical_speed*10)); 3589 } 3590 3591 /** 3592 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3593 * @phba: pointer to lpfc hba data structure. 3594 * 3595 * This routine is invoked by the worker thread to process all the pending 3596 * SLI4 asynchronous events. 3597 **/ 3598 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3599 { 3600 struct lpfc_cq_event *cq_event; 3601 3602 /* First, declare the async event has been handled */ 3603 spin_lock_irq(&phba->hbalock); 3604 phba->hba_flag &= ~ASYNC_EVENT; 3605 spin_unlock_irq(&phba->hbalock); 3606 /* Now, handle all the async events */ 3607 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3608 /* Get the first event from the head of the event queue */ 3609 spin_lock_irq(&phba->hbalock); 3610 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3611 cq_event, struct lpfc_cq_event, list); 3612 spin_unlock_irq(&phba->hbalock); 3613 /* Process the asynchronous event */ 3614 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3615 case LPFC_TRAILER_CODE_LINK: 3616 lpfc_sli4_async_link_evt(phba, 3617 &cq_event->cqe.acqe_link); 3618 break; 3619 case LPFC_TRAILER_CODE_FCOE: 3620 lpfc_sli4_async_fcoe_evt(phba, 3621 &cq_event->cqe.acqe_fcoe); 3622 break; 3623 case LPFC_TRAILER_CODE_DCBX: 3624 lpfc_sli4_async_dcbx_evt(phba, 3625 &cq_event->cqe.acqe_dcbx); 3626 break; 3627 case LPFC_TRAILER_CODE_GRP5: 3628 lpfc_sli4_async_grp5_evt(phba, 3629 &cq_event->cqe.acqe_grp5); 3630 break; 3631 default: 3632 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3633 "1804 Invalid asynchrous event code: " 3634 "x%x\n", bf_get(lpfc_trailer_code, 3635 &cq_event->cqe.mcqe_cmpl)); 3636 break; 3637 } 3638 /* Free the completion event processed to the free pool */ 3639 lpfc_sli4_cq_event_release(phba, cq_event); 3640 } 3641 } 3642 3643 /** 3644 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 3645 * @phba: pointer to lpfc hba data structure. 3646 * 3647 * This routine is invoked by the worker thread to process FCF table 3648 * rediscovery pending completion event. 3649 **/ 3650 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 3651 { 3652 int rc; 3653 3654 spin_lock_irq(&phba->hbalock); 3655 /* Clear FCF rediscovery timeout event */ 3656 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 3657 /* Clear driver fast failover FCF record flag */ 3658 phba->fcf.failover_rec.flag = 0; 3659 /* Set state for FCF fast failover */ 3660 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 3661 spin_unlock_irq(&phba->hbalock); 3662 3663 /* Scan FCF table from the first entry to re-discover SAN */ 3664 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3665 "2777 Start FCF table scan after FCF " 3666 "rediscovery quiescent period over\n"); 3667 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 3668 if (rc) 3669 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3670 "2747 Issue FCF scan read FCF mailbox " 3671 "command failed 0x%x\n", rc); 3672 } 3673 3674 /** 3675 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3676 * @phba: pointer to lpfc hba data structure. 3677 * @dev_grp: The HBA PCI-Device group number. 3678 * 3679 * This routine is invoked to set up the per HBA PCI-Device group function 3680 * API jump table entries. 3681 * 3682 * Return: 0 if success, otherwise -ENODEV 3683 **/ 3684 int 3685 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3686 { 3687 int rc; 3688 3689 /* Set up lpfc PCI-device group */ 3690 phba->pci_dev_grp = dev_grp; 3691 3692 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3693 if (dev_grp == LPFC_PCI_DEV_OC) 3694 phba->sli_rev = LPFC_SLI_REV4; 3695 3696 /* Set up device INIT API function jump table */ 3697 rc = lpfc_init_api_table_setup(phba, dev_grp); 3698 if (rc) 3699 return -ENODEV; 3700 /* Set up SCSI API function jump table */ 3701 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3702 if (rc) 3703 return -ENODEV; 3704 /* Set up SLI API function jump table */ 3705 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3706 if (rc) 3707 return -ENODEV; 3708 /* Set up MBOX API function jump table */ 3709 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3710 if (rc) 3711 return -ENODEV; 3712 3713 return 0; 3714 } 3715 3716 /** 3717 * lpfc_log_intr_mode - Log the active interrupt mode 3718 * @phba: pointer to lpfc hba data structure. 3719 * @intr_mode: active interrupt mode adopted. 3720 * 3721 * This routine it invoked to log the currently used active interrupt mode 3722 * to the device. 3723 **/ 3724 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3725 { 3726 switch (intr_mode) { 3727 case 0: 3728 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3729 "0470 Enable INTx interrupt mode.\n"); 3730 break; 3731 case 1: 3732 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3733 "0481 Enabled MSI interrupt mode.\n"); 3734 break; 3735 case 2: 3736 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3737 "0480 Enabled MSI-X interrupt mode.\n"); 3738 break; 3739 default: 3740 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3741 "0482 Illegal interrupt mode.\n"); 3742 break; 3743 } 3744 return; 3745 } 3746 3747 /** 3748 * lpfc_enable_pci_dev - Enable a generic PCI device. 3749 * @phba: pointer to lpfc hba data structure. 3750 * 3751 * This routine is invoked to enable the PCI device that is common to all 3752 * PCI devices. 3753 * 3754 * Return codes 3755 * 0 - successful 3756 * other values - error 3757 **/ 3758 static int 3759 lpfc_enable_pci_dev(struct lpfc_hba *phba) 3760 { 3761 struct pci_dev *pdev; 3762 int bars; 3763 3764 /* Obtain PCI device reference */ 3765 if (!phba->pcidev) 3766 goto out_error; 3767 else 3768 pdev = phba->pcidev; 3769 /* Select PCI BARs */ 3770 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3771 /* Enable PCI device */ 3772 if (pci_enable_device_mem(pdev)) 3773 goto out_error; 3774 /* Request PCI resource for the device */ 3775 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3776 goto out_disable_device; 3777 /* Set up device as PCI master and save state for EEH */ 3778 pci_set_master(pdev); 3779 pci_try_set_mwi(pdev); 3780 pci_save_state(pdev); 3781 3782 return 0; 3783 3784 out_disable_device: 3785 pci_disable_device(pdev); 3786 out_error: 3787 return -ENODEV; 3788 } 3789 3790 /** 3791 * lpfc_disable_pci_dev - Disable a generic PCI device. 3792 * @phba: pointer to lpfc hba data structure. 3793 * 3794 * This routine is invoked to disable the PCI device that is common to all 3795 * PCI devices. 3796 **/ 3797 static void 3798 lpfc_disable_pci_dev(struct lpfc_hba *phba) 3799 { 3800 struct pci_dev *pdev; 3801 int bars; 3802 3803 /* Obtain PCI device reference */ 3804 if (!phba->pcidev) 3805 return; 3806 else 3807 pdev = phba->pcidev; 3808 /* Select PCI BARs */ 3809 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3810 /* Release PCI resource and disable PCI device */ 3811 pci_release_selected_regions(pdev, bars); 3812 pci_disable_device(pdev); 3813 /* Null out PCI private reference to driver */ 3814 pci_set_drvdata(pdev, NULL); 3815 3816 return; 3817 } 3818 3819 /** 3820 * lpfc_reset_hba - Reset a hba 3821 * @phba: pointer to lpfc hba data structure. 3822 * 3823 * This routine is invoked to reset a hba device. It brings the HBA 3824 * offline, performs a board restart, and then brings the board back 3825 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 3826 * on outstanding mailbox commands. 3827 **/ 3828 void 3829 lpfc_reset_hba(struct lpfc_hba *phba) 3830 { 3831 /* If resets are disabled then set error state and return. */ 3832 if (!phba->cfg_enable_hba_reset) { 3833 phba->link_state = LPFC_HBA_ERROR; 3834 return; 3835 } 3836 lpfc_offline_prep(phba); 3837 lpfc_offline(phba); 3838 lpfc_sli_brdrestart(phba); 3839 lpfc_online(phba); 3840 lpfc_unblock_mgmt_io(phba); 3841 } 3842 3843 /** 3844 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 3845 * @phba: pointer to lpfc hba data structure. 3846 * 3847 * This routine is invoked to set up the driver internal resources specific to 3848 * support the SLI-3 HBA device it attached to. 3849 * 3850 * Return codes 3851 * 0 - successful 3852 * other values - error 3853 **/ 3854 static int 3855 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 3856 { 3857 struct lpfc_sli *psli; 3858 3859 /* 3860 * Initialize timers used by driver 3861 */ 3862 3863 /* Heartbeat timer */ 3864 init_timer(&phba->hb_tmofunc); 3865 phba->hb_tmofunc.function = lpfc_hb_timeout; 3866 phba->hb_tmofunc.data = (unsigned long)phba; 3867 3868 psli = &phba->sli; 3869 /* MBOX heartbeat timer */ 3870 init_timer(&psli->mbox_tmo); 3871 psli->mbox_tmo.function = lpfc_mbox_timeout; 3872 psli->mbox_tmo.data = (unsigned long) phba; 3873 /* FCP polling mode timer */ 3874 init_timer(&phba->fcp_poll_timer); 3875 phba->fcp_poll_timer.function = lpfc_poll_timeout; 3876 phba->fcp_poll_timer.data = (unsigned long) phba; 3877 /* Fabric block timer */ 3878 init_timer(&phba->fabric_block_timer); 3879 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3880 phba->fabric_block_timer.data = (unsigned long) phba; 3881 /* EA polling mode timer */ 3882 init_timer(&phba->eratt_poll); 3883 phba->eratt_poll.function = lpfc_poll_eratt; 3884 phba->eratt_poll.data = (unsigned long) phba; 3885 3886 /* Host attention work mask setup */ 3887 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 3888 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 3889 3890 /* Get all the module params for configuring this host */ 3891 lpfc_get_cfgparam(phba); 3892 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 3893 phba->menlo_flag |= HBA_MENLO_SUPPORT; 3894 /* check for menlo minimum sg count */ 3895 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 3896 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 3897 } 3898 3899 /* 3900 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3901 * used to create the sg_dma_buf_pool must be dynamically calculated. 3902 * 2 segments are added since the IOCB needs a command and response bde. 3903 */ 3904 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 3905 sizeof(struct fcp_rsp) + 3906 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 3907 3908 if (phba->cfg_enable_bg) { 3909 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 3910 phba->cfg_sg_dma_buf_size += 3911 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 3912 } 3913 3914 /* Also reinitialize the host templates with new values. */ 3915 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3916 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3917 3918 phba->max_vpi = LPFC_MAX_VPI; 3919 /* This will be set to correct value after config_port mbox */ 3920 phba->max_vports = 0; 3921 3922 /* 3923 * Initialize the SLI Layer to run with lpfc HBAs. 3924 */ 3925 lpfc_sli_setup(phba); 3926 lpfc_sli_queue_setup(phba); 3927 3928 /* Allocate device driver memory */ 3929 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 3930 return -ENOMEM; 3931 3932 return 0; 3933 } 3934 3935 /** 3936 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 3937 * @phba: pointer to lpfc hba data structure. 3938 * 3939 * This routine is invoked to unset the driver internal resources set up 3940 * specific for supporting the SLI-3 HBA device it attached to. 3941 **/ 3942 static void 3943 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 3944 { 3945 /* Free device driver memory allocated */ 3946 lpfc_mem_free_all(phba); 3947 3948 return; 3949 } 3950 3951 /** 3952 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 3953 * @phba: pointer to lpfc hba data structure. 3954 * 3955 * This routine is invoked to set up the driver internal resources specific to 3956 * support the SLI-4 HBA device it attached to. 3957 * 3958 * Return codes 3959 * 0 - successful 3960 * other values - error 3961 **/ 3962 static int 3963 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 3964 { 3965 struct lpfc_sli *psli; 3966 LPFC_MBOXQ_t *mboxq; 3967 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 3968 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 3969 struct lpfc_mqe *mqe; 3970 int longs; 3971 3972 /* Before proceed, wait for POST done and device ready */ 3973 rc = lpfc_sli4_post_status_check(phba); 3974 if (rc) 3975 return -ENODEV; 3976 3977 /* 3978 * Initialize timers used by driver 3979 */ 3980 3981 /* Heartbeat timer */ 3982 init_timer(&phba->hb_tmofunc); 3983 phba->hb_tmofunc.function = lpfc_hb_timeout; 3984 phba->hb_tmofunc.data = (unsigned long)phba; 3985 3986 psli = &phba->sli; 3987 /* MBOX heartbeat timer */ 3988 init_timer(&psli->mbox_tmo); 3989 psli->mbox_tmo.function = lpfc_mbox_timeout; 3990 psli->mbox_tmo.data = (unsigned long) phba; 3991 /* Fabric block timer */ 3992 init_timer(&phba->fabric_block_timer); 3993 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3994 phba->fabric_block_timer.data = (unsigned long) phba; 3995 /* EA polling mode timer */ 3996 init_timer(&phba->eratt_poll); 3997 phba->eratt_poll.function = lpfc_poll_eratt; 3998 phba->eratt_poll.data = (unsigned long) phba; 3999 /* FCF rediscover timer */ 4000 init_timer(&phba->fcf.redisc_wait); 4001 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4002 phba->fcf.redisc_wait.data = (unsigned long)phba; 4003 4004 /* 4005 * We need to do a READ_CONFIG mailbox command here before 4006 * calling lpfc_get_cfgparam. For VFs this will report the 4007 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 4008 * All of the resources allocated 4009 * for this Port are tied to these values. 4010 */ 4011 /* Get all the module params for configuring this host */ 4012 lpfc_get_cfgparam(phba); 4013 phba->max_vpi = LPFC_MAX_VPI; 4014 /* This will be set to correct value after the read_config mbox */ 4015 phba->max_vports = 0; 4016 4017 /* Program the default value of vlan_id and fc_map */ 4018 phba->valid_vlan = 0; 4019 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4020 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4021 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4022 4023 /* 4024 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4025 * used to create the sg_dma_buf_pool must be dynamically calculated. 4026 * 2 segments are added since the IOCB needs a command and response bde. 4027 * To insure that the scsi sgl does not cross a 4k page boundary only 4028 * sgl sizes of must be a power of 2. 4029 */ 4030 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 4031 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge))); 4032 /* Feature Level 1 hardware is limited to 2 pages */ 4033 if ((bf_get(lpfc_sli_intf_featurelevel1, &phba->sli4_hba.sli_intf) == 4034 LPFC_SLI_INTF_FEATURELEVEL1_1)) 4035 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4036 else 4037 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4038 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4039 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4040 dma_buf_size = dma_buf_size << 1) 4041 ; 4042 if (dma_buf_size == max_buf_size) 4043 phba->cfg_sg_seg_cnt = (dma_buf_size - 4044 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4045 (2 * sizeof(struct sli4_sge))) / 4046 sizeof(struct sli4_sge); 4047 phba->cfg_sg_dma_buf_size = dma_buf_size; 4048 4049 /* Initialize buffer queue management fields */ 4050 hbq_count = lpfc_sli_hbq_count(); 4051 for (i = 0; i < hbq_count; ++i) 4052 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4053 INIT_LIST_HEAD(&phba->rb_pend_list); 4054 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4055 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4056 4057 /* 4058 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4059 */ 4060 /* Initialize the Abort scsi buffer list used by driver */ 4061 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4062 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4063 /* This abort list used by worker thread */ 4064 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4065 4066 /* 4067 * Initialize dirver internal slow-path work queues 4068 */ 4069 4070 /* Driver internel slow-path CQ Event pool */ 4071 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4072 /* Response IOCB work queue list */ 4073 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4074 /* Asynchronous event CQ Event work queue list */ 4075 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4076 /* Fast-path XRI aborted CQ Event work queue list */ 4077 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4078 /* Slow-path XRI aborted CQ Event work queue list */ 4079 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4080 /* Receive queue CQ Event work queue list */ 4081 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4082 4083 /* Initialize the driver internal SLI layer lists. */ 4084 lpfc_sli_setup(phba); 4085 lpfc_sli_queue_setup(phba); 4086 4087 /* Allocate device driver memory */ 4088 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4089 if (rc) 4090 return -ENOMEM; 4091 4092 /* Create the bootstrap mailbox command */ 4093 rc = lpfc_create_bootstrap_mbox(phba); 4094 if (unlikely(rc)) 4095 goto out_free_mem; 4096 4097 /* Set up the host's endian order with the device. */ 4098 rc = lpfc_setup_endian_order(phba); 4099 if (unlikely(rc)) 4100 goto out_free_bsmbx; 4101 4102 rc = lpfc_sli4_fw_cfg_check(phba); 4103 if (unlikely(rc)) 4104 goto out_free_bsmbx; 4105 4106 /* Set up the hba's configuration parameters. */ 4107 rc = lpfc_sli4_read_config(phba); 4108 if (unlikely(rc)) 4109 goto out_free_bsmbx; 4110 4111 /* Perform a function reset */ 4112 rc = lpfc_pci_function_reset(phba); 4113 if (unlikely(rc)) 4114 goto out_free_bsmbx; 4115 4116 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4117 GFP_KERNEL); 4118 if (!mboxq) { 4119 rc = -ENOMEM; 4120 goto out_free_bsmbx; 4121 } 4122 4123 /* Get the Supported Pages. It is always available. */ 4124 lpfc_supported_pages(mboxq); 4125 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4126 if (unlikely(rc)) { 4127 rc = -EIO; 4128 mempool_free(mboxq, phba->mbox_mem_pool); 4129 goto out_free_bsmbx; 4130 } 4131 4132 mqe = &mboxq->u.mqe; 4133 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4134 LPFC_MAX_SUPPORTED_PAGES); 4135 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4136 switch (pn_page[i]) { 4137 case LPFC_SLI4_PARAMETERS: 4138 phba->sli4_hba.pc_sli4_params.supported = 1; 4139 break; 4140 default: 4141 break; 4142 } 4143 } 4144 4145 /* Read the port's SLI4 Parameters capabilities if supported. */ 4146 if (phba->sli4_hba.pc_sli4_params.supported) 4147 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4148 mempool_free(mboxq, phba->mbox_mem_pool); 4149 if (rc) { 4150 rc = -EIO; 4151 goto out_free_bsmbx; 4152 } 4153 /* Create all the SLI4 queues */ 4154 rc = lpfc_sli4_queue_create(phba); 4155 if (rc) 4156 goto out_free_bsmbx; 4157 4158 /* Create driver internal CQE event pool */ 4159 rc = lpfc_sli4_cq_event_pool_create(phba); 4160 if (rc) 4161 goto out_destroy_queue; 4162 4163 /* Initialize and populate the iocb list per host */ 4164 rc = lpfc_init_sgl_list(phba); 4165 if (rc) { 4166 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4167 "1400 Failed to initialize sgl list.\n"); 4168 goto out_destroy_cq_event_pool; 4169 } 4170 rc = lpfc_init_active_sgl_array(phba); 4171 if (rc) { 4172 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4173 "1430 Failed to initialize sgl list.\n"); 4174 goto out_free_sgl_list; 4175 } 4176 4177 rc = lpfc_sli4_init_rpi_hdrs(phba); 4178 if (rc) { 4179 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4180 "1432 Failed to initialize rpi headers.\n"); 4181 goto out_free_active_sgl; 4182 } 4183 4184 /* Allocate eligible FCF bmask memory for FCF round robin failover */ 4185 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 4186 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 4187 GFP_KERNEL); 4188 if (!phba->fcf.fcf_rr_bmask) { 4189 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4190 "2759 Failed allocate memory for FCF round " 4191 "robin failover bmask\n"); 4192 goto out_remove_rpi_hdrs; 4193 } 4194 4195 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 4196 phba->cfg_fcp_eq_count), GFP_KERNEL); 4197 if (!phba->sli4_hba.fcp_eq_hdl) { 4198 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4199 "2572 Failed allocate memory for fast-path " 4200 "per-EQ handle array\n"); 4201 goto out_free_fcf_rr_bmask; 4202 } 4203 4204 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 4205 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 4206 if (!phba->sli4_hba.msix_entries) { 4207 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4208 "2573 Failed allocate memory for msi-x " 4209 "interrupt vector entries\n"); 4210 goto out_free_fcp_eq_hdl; 4211 } 4212 4213 return rc; 4214 4215 out_free_fcp_eq_hdl: 4216 kfree(phba->sli4_hba.fcp_eq_hdl); 4217 out_free_fcf_rr_bmask: 4218 kfree(phba->fcf.fcf_rr_bmask); 4219 out_remove_rpi_hdrs: 4220 lpfc_sli4_remove_rpi_hdrs(phba); 4221 out_free_active_sgl: 4222 lpfc_free_active_sgl(phba); 4223 out_free_sgl_list: 4224 lpfc_free_sgl_list(phba); 4225 out_destroy_cq_event_pool: 4226 lpfc_sli4_cq_event_pool_destroy(phba); 4227 out_destroy_queue: 4228 lpfc_sli4_queue_destroy(phba); 4229 out_free_bsmbx: 4230 lpfc_destroy_bootstrap_mbox(phba); 4231 out_free_mem: 4232 lpfc_mem_free(phba); 4233 return rc; 4234 } 4235 4236 /** 4237 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 4238 * @phba: pointer to lpfc hba data structure. 4239 * 4240 * This routine is invoked to unset the driver internal resources set up 4241 * specific for supporting the SLI-4 HBA device it attached to. 4242 **/ 4243 static void 4244 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 4245 { 4246 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4247 4248 /* unregister default FCFI from the HBA */ 4249 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi); 4250 4251 /* Free the default FCR table */ 4252 lpfc_sli_remove_dflt_fcf(phba); 4253 4254 /* Free memory allocated for msi-x interrupt vector entries */ 4255 kfree(phba->sli4_hba.msix_entries); 4256 4257 /* Free memory allocated for fast-path work queue handles */ 4258 kfree(phba->sli4_hba.fcp_eq_hdl); 4259 4260 /* Free the allocated rpi headers. */ 4261 lpfc_sli4_remove_rpi_hdrs(phba); 4262 lpfc_sli4_remove_rpis(phba); 4263 4264 /* Free eligible FCF index bmask */ 4265 kfree(phba->fcf.fcf_rr_bmask); 4266 4267 /* Free the ELS sgl list */ 4268 lpfc_free_active_sgl(phba); 4269 lpfc_free_sgl_list(phba); 4270 4271 /* Free the SCSI sgl management array */ 4272 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4273 4274 /* Free the SLI4 queues */ 4275 lpfc_sli4_queue_destroy(phba); 4276 4277 /* Free the completion queue EQ event pool */ 4278 lpfc_sli4_cq_event_release_all(phba); 4279 lpfc_sli4_cq_event_pool_destroy(phba); 4280 4281 /* Reset SLI4 HBA FCoE function */ 4282 lpfc_pci_function_reset(phba); 4283 4284 /* Free the bsmbx region. */ 4285 lpfc_destroy_bootstrap_mbox(phba); 4286 4287 /* Free the SLI Layer memory with SLI4 HBAs */ 4288 lpfc_mem_free_all(phba); 4289 4290 /* Free the current connect table */ 4291 list_for_each_entry_safe(conn_entry, next_conn_entry, 4292 &phba->fcf_conn_rec_list, list) { 4293 list_del_init(&conn_entry->list); 4294 kfree(conn_entry); 4295 } 4296 4297 return; 4298 } 4299 4300 /** 4301 * lpfc_init_api_table_setup - Set up init api fucntion jump table 4302 * @phba: The hba struct for which this call is being executed. 4303 * @dev_grp: The HBA PCI-Device group number. 4304 * 4305 * This routine sets up the device INIT interface API function jump table 4306 * in @phba struct. 4307 * 4308 * Returns: 0 - success, -ENODEV - failure. 4309 **/ 4310 int 4311 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4312 { 4313 phba->lpfc_hba_init_link = lpfc_hba_init_link; 4314 phba->lpfc_hba_down_link = lpfc_hba_down_link; 4315 switch (dev_grp) { 4316 case LPFC_PCI_DEV_LP: 4317 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 4318 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 4319 phba->lpfc_stop_port = lpfc_stop_port_s3; 4320 break; 4321 case LPFC_PCI_DEV_OC: 4322 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 4323 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 4324 phba->lpfc_stop_port = lpfc_stop_port_s4; 4325 break; 4326 default: 4327 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4328 "1431 Invalid HBA PCI-device group: 0x%x\n", 4329 dev_grp); 4330 return -ENODEV; 4331 break; 4332 } 4333 return 0; 4334 } 4335 4336 /** 4337 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 4338 * @phba: pointer to lpfc hba data structure. 4339 * 4340 * This routine is invoked to set up the driver internal resources before the 4341 * device specific resource setup to support the HBA device it attached to. 4342 * 4343 * Return codes 4344 * 0 - successful 4345 * other values - error 4346 **/ 4347 static int 4348 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 4349 { 4350 /* 4351 * Driver resources common to all SLI revisions 4352 */ 4353 atomic_set(&phba->fast_event_count, 0); 4354 spin_lock_init(&phba->hbalock); 4355 4356 /* Initialize ndlp management spinlock */ 4357 spin_lock_init(&phba->ndlp_lock); 4358 4359 INIT_LIST_HEAD(&phba->port_list); 4360 INIT_LIST_HEAD(&phba->work_list); 4361 init_waitqueue_head(&phba->wait_4_mlo_m_q); 4362 4363 /* Initialize the wait queue head for the kernel thread */ 4364 init_waitqueue_head(&phba->work_waitq); 4365 4366 /* Initialize the scsi buffer list used by driver for scsi IO */ 4367 spin_lock_init(&phba->scsi_buf_list_lock); 4368 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 4369 4370 /* Initialize the fabric iocb list */ 4371 INIT_LIST_HEAD(&phba->fabric_iocb_list); 4372 4373 /* Initialize list to save ELS buffers */ 4374 INIT_LIST_HEAD(&phba->elsbuf); 4375 4376 /* Initialize FCF connection rec list */ 4377 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 4378 4379 return 0; 4380 } 4381 4382 /** 4383 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 4384 * @phba: pointer to lpfc hba data structure. 4385 * 4386 * This routine is invoked to set up the driver internal resources after the 4387 * device specific resource setup to support the HBA device it attached to. 4388 * 4389 * Return codes 4390 * 0 - successful 4391 * other values - error 4392 **/ 4393 static int 4394 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 4395 { 4396 int error; 4397 4398 /* Startup the kernel thread for this host adapter. */ 4399 phba->worker_thread = kthread_run(lpfc_do_work, phba, 4400 "lpfc_worker_%d", phba->brd_no); 4401 if (IS_ERR(phba->worker_thread)) { 4402 error = PTR_ERR(phba->worker_thread); 4403 return error; 4404 } 4405 4406 return 0; 4407 } 4408 4409 /** 4410 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 4411 * @phba: pointer to lpfc hba data structure. 4412 * 4413 * This routine is invoked to unset the driver internal resources set up after 4414 * the device specific resource setup for supporting the HBA device it 4415 * attached to. 4416 **/ 4417 static void 4418 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 4419 { 4420 /* Stop kernel worker thread */ 4421 kthread_stop(phba->worker_thread); 4422 } 4423 4424 /** 4425 * lpfc_free_iocb_list - Free iocb list. 4426 * @phba: pointer to lpfc hba data structure. 4427 * 4428 * This routine is invoked to free the driver's IOCB list and memory. 4429 **/ 4430 static void 4431 lpfc_free_iocb_list(struct lpfc_hba *phba) 4432 { 4433 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 4434 4435 spin_lock_irq(&phba->hbalock); 4436 list_for_each_entry_safe(iocbq_entry, iocbq_next, 4437 &phba->lpfc_iocb_list, list) { 4438 list_del(&iocbq_entry->list); 4439 kfree(iocbq_entry); 4440 phba->total_iocbq_bufs--; 4441 } 4442 spin_unlock_irq(&phba->hbalock); 4443 4444 return; 4445 } 4446 4447 /** 4448 * lpfc_init_iocb_list - Allocate and initialize iocb list. 4449 * @phba: pointer to lpfc hba data structure. 4450 * 4451 * This routine is invoked to allocate and initizlize the driver's IOCB 4452 * list and set up the IOCB tag array accordingly. 4453 * 4454 * Return codes 4455 * 0 - successful 4456 * other values - error 4457 **/ 4458 static int 4459 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 4460 { 4461 struct lpfc_iocbq *iocbq_entry = NULL; 4462 uint16_t iotag; 4463 int i; 4464 4465 /* Initialize and populate the iocb list per host. */ 4466 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 4467 for (i = 0; i < iocb_count; i++) { 4468 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 4469 if (iocbq_entry == NULL) { 4470 printk(KERN_ERR "%s: only allocated %d iocbs of " 4471 "expected %d count. Unloading driver.\n", 4472 __func__, i, LPFC_IOCB_LIST_CNT); 4473 goto out_free_iocbq; 4474 } 4475 4476 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 4477 if (iotag == 0) { 4478 kfree(iocbq_entry); 4479 printk(KERN_ERR "%s: failed to allocate IOTAG. " 4480 "Unloading driver.\n", __func__); 4481 goto out_free_iocbq; 4482 } 4483 iocbq_entry->sli4_xritag = NO_XRI; 4484 4485 spin_lock_irq(&phba->hbalock); 4486 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 4487 phba->total_iocbq_bufs++; 4488 spin_unlock_irq(&phba->hbalock); 4489 } 4490 4491 return 0; 4492 4493 out_free_iocbq: 4494 lpfc_free_iocb_list(phba); 4495 4496 return -ENOMEM; 4497 } 4498 4499 /** 4500 * lpfc_free_sgl_list - Free sgl list. 4501 * @phba: pointer to lpfc hba data structure. 4502 * 4503 * This routine is invoked to free the driver's sgl list and memory. 4504 **/ 4505 static void 4506 lpfc_free_sgl_list(struct lpfc_hba *phba) 4507 { 4508 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 4509 LIST_HEAD(sglq_list); 4510 int rc = 0; 4511 4512 spin_lock_irq(&phba->hbalock); 4513 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 4514 spin_unlock_irq(&phba->hbalock); 4515 4516 list_for_each_entry_safe(sglq_entry, sglq_next, 4517 &sglq_list, list) { 4518 list_del(&sglq_entry->list); 4519 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 4520 kfree(sglq_entry); 4521 phba->sli4_hba.total_sglq_bufs--; 4522 } 4523 rc = lpfc_sli4_remove_all_sgl_pages(phba); 4524 if (rc) { 4525 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4526 "2005 Unable to deregister pages from HBA: %x\n", rc); 4527 } 4528 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4529 } 4530 4531 /** 4532 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 4533 * @phba: pointer to lpfc hba data structure. 4534 * 4535 * This routine is invoked to allocate the driver's active sgl memory. 4536 * This array will hold the sglq_entry's for active IOs. 4537 **/ 4538 static int 4539 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 4540 { 4541 int size; 4542 size = sizeof(struct lpfc_sglq *); 4543 size *= phba->sli4_hba.max_cfg_param.max_xri; 4544 4545 phba->sli4_hba.lpfc_sglq_active_list = 4546 kzalloc(size, GFP_KERNEL); 4547 if (!phba->sli4_hba.lpfc_sglq_active_list) 4548 return -ENOMEM; 4549 return 0; 4550 } 4551 4552 /** 4553 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 4554 * @phba: pointer to lpfc hba data structure. 4555 * 4556 * This routine is invoked to walk through the array of active sglq entries 4557 * and free all of the resources. 4558 * This is just a place holder for now. 4559 **/ 4560 static void 4561 lpfc_free_active_sgl(struct lpfc_hba *phba) 4562 { 4563 kfree(phba->sli4_hba.lpfc_sglq_active_list); 4564 } 4565 4566 /** 4567 * lpfc_init_sgl_list - Allocate and initialize sgl list. 4568 * @phba: pointer to lpfc hba data structure. 4569 * 4570 * This routine is invoked to allocate and initizlize the driver's sgl 4571 * list and set up the sgl xritag tag array accordingly. 4572 * 4573 * Return codes 4574 * 0 - successful 4575 * other values - error 4576 **/ 4577 static int 4578 lpfc_init_sgl_list(struct lpfc_hba *phba) 4579 { 4580 struct lpfc_sglq *sglq_entry = NULL; 4581 int i; 4582 int els_xri_cnt; 4583 4584 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 4585 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4586 "2400 lpfc_init_sgl_list els %d.\n", 4587 els_xri_cnt); 4588 /* Initialize and populate the sglq list per host/VF. */ 4589 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 4590 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 4591 4592 /* Sanity check on XRI management */ 4593 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 4594 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4595 "2562 No room left for SCSI XRI allocation: " 4596 "max_xri=%d, els_xri=%d\n", 4597 phba->sli4_hba.max_cfg_param.max_xri, 4598 els_xri_cnt); 4599 return -ENOMEM; 4600 } 4601 4602 /* Allocate memory for the ELS XRI management array */ 4603 phba->sli4_hba.lpfc_els_sgl_array = 4604 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 4605 GFP_KERNEL); 4606 4607 if (!phba->sli4_hba.lpfc_els_sgl_array) { 4608 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4609 "2401 Failed to allocate memory for ELS " 4610 "XRI management array of size %d.\n", 4611 els_xri_cnt); 4612 return -ENOMEM; 4613 } 4614 4615 /* Keep the SCSI XRI into the XRI management array */ 4616 phba->sli4_hba.scsi_xri_max = 4617 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 4618 phba->sli4_hba.scsi_xri_cnt = 0; 4619 4620 phba->sli4_hba.lpfc_scsi_psb_array = 4621 kzalloc((sizeof(struct lpfc_scsi_buf *) * 4622 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 4623 4624 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 4625 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4626 "2563 Failed to allocate memory for SCSI " 4627 "XRI management array of size %d.\n", 4628 phba->sli4_hba.scsi_xri_max); 4629 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4630 return -ENOMEM; 4631 } 4632 4633 for (i = 0; i < els_xri_cnt; i++) { 4634 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 4635 if (sglq_entry == NULL) { 4636 printk(KERN_ERR "%s: only allocated %d sgls of " 4637 "expected %d count. Unloading driver.\n", 4638 __func__, i, els_xri_cnt); 4639 goto out_free_mem; 4640 } 4641 4642 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba); 4643 if (sglq_entry->sli4_xritag == NO_XRI) { 4644 kfree(sglq_entry); 4645 printk(KERN_ERR "%s: failed to allocate XRI.\n" 4646 "Unloading driver.\n", __func__); 4647 goto out_free_mem; 4648 } 4649 sglq_entry->buff_type = GEN_BUFF_TYPE; 4650 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 4651 if (sglq_entry->virt == NULL) { 4652 kfree(sglq_entry); 4653 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 4654 "Unloading driver.\n", __func__); 4655 goto out_free_mem; 4656 } 4657 sglq_entry->sgl = sglq_entry->virt; 4658 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 4659 4660 /* The list order is used by later block SGL registraton */ 4661 spin_lock_irq(&phba->hbalock); 4662 sglq_entry->state = SGL_FREED; 4663 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 4664 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 4665 phba->sli4_hba.total_sglq_bufs++; 4666 spin_unlock_irq(&phba->hbalock); 4667 } 4668 return 0; 4669 4670 out_free_mem: 4671 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4672 lpfc_free_sgl_list(phba); 4673 return -ENOMEM; 4674 } 4675 4676 /** 4677 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 4678 * @phba: pointer to lpfc hba data structure. 4679 * 4680 * This routine is invoked to post rpi header templates to the 4681 * HBA consistent with the SLI-4 interface spec. This routine 4682 * posts a PAGE_SIZE memory region to the port to hold up to 4683 * PAGE_SIZE modulo 64 rpi context headers. 4684 * No locks are held here because this is an initialization routine 4685 * called only from probe or lpfc_online when interrupts are not 4686 * enabled and the driver is reinitializing the device. 4687 * 4688 * Return codes 4689 * 0 - successful 4690 * ENOMEM - No availble memory 4691 * EIO - The mailbox failed to complete successfully. 4692 **/ 4693 int 4694 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 4695 { 4696 int rc = 0; 4697 int longs; 4698 uint16_t rpi_count; 4699 struct lpfc_rpi_hdr *rpi_hdr; 4700 4701 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 4702 4703 /* 4704 * Provision an rpi bitmask range for discovery. The total count 4705 * is the difference between max and base + 1. 4706 */ 4707 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base + 4708 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4709 4710 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG; 4711 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long), 4712 GFP_KERNEL); 4713 if (!phba->sli4_hba.rpi_bmask) 4714 return -ENOMEM; 4715 4716 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 4717 if (!rpi_hdr) { 4718 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 4719 "0391 Error during rpi post operation\n"); 4720 lpfc_sli4_remove_rpis(phba); 4721 rc = -ENODEV; 4722 } 4723 4724 return rc; 4725 } 4726 4727 /** 4728 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 4729 * @phba: pointer to lpfc hba data structure. 4730 * 4731 * This routine is invoked to allocate a single 4KB memory region to 4732 * support rpis and stores them in the phba. This single region 4733 * provides support for up to 64 rpis. The region is used globally 4734 * by the device. 4735 * 4736 * Returns: 4737 * A valid rpi hdr on success. 4738 * A NULL pointer on any failure. 4739 **/ 4740 struct lpfc_rpi_hdr * 4741 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 4742 { 4743 uint16_t rpi_limit, curr_rpi_range; 4744 struct lpfc_dmabuf *dmabuf; 4745 struct lpfc_rpi_hdr *rpi_hdr; 4746 4747 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 4748 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4749 4750 spin_lock_irq(&phba->hbalock); 4751 curr_rpi_range = phba->sli4_hba.next_rpi; 4752 spin_unlock_irq(&phba->hbalock); 4753 4754 /* 4755 * The port has a limited number of rpis. The increment here 4756 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 4757 * and to allow the full max_rpi range per port. 4758 */ 4759 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 4760 return NULL; 4761 4762 /* 4763 * First allocate the protocol header region for the port. The 4764 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 4765 */ 4766 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4767 if (!dmabuf) 4768 return NULL; 4769 4770 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4771 LPFC_HDR_TEMPLATE_SIZE, 4772 &dmabuf->phys, 4773 GFP_KERNEL); 4774 if (!dmabuf->virt) { 4775 rpi_hdr = NULL; 4776 goto err_free_dmabuf; 4777 } 4778 4779 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 4780 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 4781 rpi_hdr = NULL; 4782 goto err_free_coherent; 4783 } 4784 4785 /* Save the rpi header data for cleanup later. */ 4786 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 4787 if (!rpi_hdr) 4788 goto err_free_coherent; 4789 4790 rpi_hdr->dmabuf = dmabuf; 4791 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 4792 rpi_hdr->page_count = 1; 4793 spin_lock_irq(&phba->hbalock); 4794 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi; 4795 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 4796 4797 /* 4798 * The next_rpi stores the next module-64 rpi value to post 4799 * in any subsequent rpi memory region postings. 4800 */ 4801 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT; 4802 spin_unlock_irq(&phba->hbalock); 4803 return rpi_hdr; 4804 4805 err_free_coherent: 4806 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 4807 dmabuf->virt, dmabuf->phys); 4808 err_free_dmabuf: 4809 kfree(dmabuf); 4810 return NULL; 4811 } 4812 4813 /** 4814 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 4815 * @phba: pointer to lpfc hba data structure. 4816 * 4817 * This routine is invoked to remove all memory resources allocated 4818 * to support rpis. This routine presumes the caller has released all 4819 * rpis consumed by fabric or port logins and is prepared to have 4820 * the header pages removed. 4821 **/ 4822 void 4823 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 4824 { 4825 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 4826 4827 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 4828 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 4829 list_del(&rpi_hdr->list); 4830 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 4831 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 4832 kfree(rpi_hdr->dmabuf); 4833 kfree(rpi_hdr); 4834 } 4835 4836 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4837 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask)); 4838 } 4839 4840 /** 4841 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 4842 * @pdev: pointer to pci device data structure. 4843 * 4844 * This routine is invoked to allocate the driver hba data structure for an 4845 * HBA device. If the allocation is successful, the phba reference to the 4846 * PCI device data structure is set. 4847 * 4848 * Return codes 4849 * pointer to @phba - successful 4850 * NULL - error 4851 **/ 4852 static struct lpfc_hba * 4853 lpfc_hba_alloc(struct pci_dev *pdev) 4854 { 4855 struct lpfc_hba *phba; 4856 4857 /* Allocate memory for HBA structure */ 4858 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 4859 if (!phba) { 4860 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 4861 return NULL; 4862 } 4863 4864 /* Set reference to PCI device in HBA structure */ 4865 phba->pcidev = pdev; 4866 4867 /* Assign an unused board number */ 4868 phba->brd_no = lpfc_get_instance(); 4869 if (phba->brd_no < 0) { 4870 kfree(phba); 4871 return NULL; 4872 } 4873 4874 spin_lock_init(&phba->ct_ev_lock); 4875 INIT_LIST_HEAD(&phba->ct_ev_waiters); 4876 4877 return phba; 4878 } 4879 4880 /** 4881 * lpfc_hba_free - Free driver hba data structure with a device. 4882 * @phba: pointer to lpfc hba data structure. 4883 * 4884 * This routine is invoked to free the driver hba data structure with an 4885 * HBA device. 4886 **/ 4887 static void 4888 lpfc_hba_free(struct lpfc_hba *phba) 4889 { 4890 /* Release the driver assigned board number */ 4891 idr_remove(&lpfc_hba_index, phba->brd_no); 4892 4893 kfree(phba); 4894 return; 4895 } 4896 4897 /** 4898 * lpfc_create_shost - Create hba physical port with associated scsi host. 4899 * @phba: pointer to lpfc hba data structure. 4900 * 4901 * This routine is invoked to create HBA physical port and associate a SCSI 4902 * host with it. 4903 * 4904 * Return codes 4905 * 0 - successful 4906 * other values - error 4907 **/ 4908 static int 4909 lpfc_create_shost(struct lpfc_hba *phba) 4910 { 4911 struct lpfc_vport *vport; 4912 struct Scsi_Host *shost; 4913 4914 /* Initialize HBA FC structure */ 4915 phba->fc_edtov = FF_DEF_EDTOV; 4916 phba->fc_ratov = FF_DEF_RATOV; 4917 phba->fc_altov = FF_DEF_ALTOV; 4918 phba->fc_arbtov = FF_DEF_ARBTOV; 4919 4920 atomic_set(&phba->sdev_cnt, 0); 4921 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 4922 if (!vport) 4923 return -ENODEV; 4924 4925 shost = lpfc_shost_from_vport(vport); 4926 phba->pport = vport; 4927 lpfc_debugfs_initialize(vport); 4928 /* Put reference to SCSI host to driver's device private data */ 4929 pci_set_drvdata(phba->pcidev, shost); 4930 4931 return 0; 4932 } 4933 4934 /** 4935 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 4936 * @phba: pointer to lpfc hba data structure. 4937 * 4938 * This routine is invoked to destroy HBA physical port and the associated 4939 * SCSI host. 4940 **/ 4941 static void 4942 lpfc_destroy_shost(struct lpfc_hba *phba) 4943 { 4944 struct lpfc_vport *vport = phba->pport; 4945 4946 /* Destroy physical port that associated with the SCSI host */ 4947 destroy_port(vport); 4948 4949 return; 4950 } 4951 4952 /** 4953 * lpfc_setup_bg - Setup Block guard structures and debug areas. 4954 * @phba: pointer to lpfc hba data structure. 4955 * @shost: the shost to be used to detect Block guard settings. 4956 * 4957 * This routine sets up the local Block guard protocol settings for @shost. 4958 * This routine also allocates memory for debugging bg buffers. 4959 **/ 4960 static void 4961 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 4962 { 4963 int pagecnt = 10; 4964 if (lpfc_prot_mask && lpfc_prot_guard) { 4965 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4966 "1478 Registering BlockGuard with the " 4967 "SCSI layer\n"); 4968 scsi_host_set_prot(shost, lpfc_prot_mask); 4969 scsi_host_set_guard(shost, lpfc_prot_guard); 4970 } 4971 if (!_dump_buf_data) { 4972 while (pagecnt) { 4973 spin_lock_init(&_dump_buf_lock); 4974 _dump_buf_data = 4975 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4976 if (_dump_buf_data) { 4977 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4978 "9043 BLKGRD: allocated %d pages for " 4979 "_dump_buf_data at 0x%p\n", 4980 (1 << pagecnt), _dump_buf_data); 4981 _dump_buf_data_order = pagecnt; 4982 memset(_dump_buf_data, 0, 4983 ((1 << PAGE_SHIFT) << pagecnt)); 4984 break; 4985 } else 4986 --pagecnt; 4987 } 4988 if (!_dump_buf_data_order) 4989 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4990 "9044 BLKGRD: ERROR unable to allocate " 4991 "memory for hexdump\n"); 4992 } else 4993 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4994 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 4995 "\n", _dump_buf_data); 4996 if (!_dump_buf_dif) { 4997 while (pagecnt) { 4998 _dump_buf_dif = 4999 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5000 if (_dump_buf_dif) { 5001 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5002 "9046 BLKGRD: allocated %d pages for " 5003 "_dump_buf_dif at 0x%p\n", 5004 (1 << pagecnt), _dump_buf_dif); 5005 _dump_buf_dif_order = pagecnt; 5006 memset(_dump_buf_dif, 0, 5007 ((1 << PAGE_SHIFT) << pagecnt)); 5008 break; 5009 } else 5010 --pagecnt; 5011 } 5012 if (!_dump_buf_dif_order) 5013 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5014 "9047 BLKGRD: ERROR unable to allocate " 5015 "memory for hexdump\n"); 5016 } else 5017 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5018 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 5019 _dump_buf_dif); 5020 } 5021 5022 /** 5023 * lpfc_post_init_setup - Perform necessary device post initialization setup. 5024 * @phba: pointer to lpfc hba data structure. 5025 * 5026 * This routine is invoked to perform all the necessary post initialization 5027 * setup for the device. 5028 **/ 5029 static void 5030 lpfc_post_init_setup(struct lpfc_hba *phba) 5031 { 5032 struct Scsi_Host *shost; 5033 struct lpfc_adapter_event_header adapter_event; 5034 5035 /* Get the default values for Model Name and Description */ 5036 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5037 5038 /* 5039 * hba setup may have changed the hba_queue_depth so we need to 5040 * adjust the value of can_queue. 5041 */ 5042 shost = pci_get_drvdata(phba->pcidev); 5043 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5044 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5045 lpfc_setup_bg(phba, shost); 5046 5047 lpfc_host_attrib_init(shost); 5048 5049 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5050 spin_lock_irq(shost->host_lock); 5051 lpfc_poll_start_timer(phba); 5052 spin_unlock_irq(shost->host_lock); 5053 } 5054 5055 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5056 "0428 Perform SCSI scan\n"); 5057 /* Send board arrival event to upper layer */ 5058 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5059 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5060 fc_host_post_vendor_event(shost, fc_get_event_number(), 5061 sizeof(adapter_event), 5062 (char *) &adapter_event, 5063 LPFC_NL_VENDOR_ID); 5064 return; 5065 } 5066 5067 /** 5068 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5069 * @phba: pointer to lpfc hba data structure. 5070 * 5071 * This routine is invoked to set up the PCI device memory space for device 5072 * with SLI-3 interface spec. 5073 * 5074 * Return codes 5075 * 0 - successful 5076 * other values - error 5077 **/ 5078 static int 5079 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5080 { 5081 struct pci_dev *pdev; 5082 unsigned long bar0map_len, bar2map_len; 5083 int i, hbq_count; 5084 void *ptr; 5085 int error = -ENODEV; 5086 5087 /* Obtain PCI device reference */ 5088 if (!phba->pcidev) 5089 return error; 5090 else 5091 pdev = phba->pcidev; 5092 5093 /* Set the device DMA mask size */ 5094 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5095 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5096 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5097 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5098 return error; 5099 } 5100 } 5101 5102 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5103 * required by each mapping. 5104 */ 5105 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5106 bar0map_len = pci_resource_len(pdev, 0); 5107 5108 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5109 bar2map_len = pci_resource_len(pdev, 2); 5110 5111 /* Map HBA SLIM to a kernel virtual address. */ 5112 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5113 if (!phba->slim_memmap_p) { 5114 dev_printk(KERN_ERR, &pdev->dev, 5115 "ioremap failed for SLIM memory.\n"); 5116 goto out; 5117 } 5118 5119 /* Map HBA Control Registers to a kernel virtual address. */ 5120 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5121 if (!phba->ctrl_regs_memmap_p) { 5122 dev_printk(KERN_ERR, &pdev->dev, 5123 "ioremap failed for HBA control registers.\n"); 5124 goto out_iounmap_slim; 5125 } 5126 5127 /* Allocate memory for SLI-2 structures */ 5128 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5129 SLI2_SLIM_SIZE, 5130 &phba->slim2p.phys, 5131 GFP_KERNEL); 5132 if (!phba->slim2p.virt) 5133 goto out_iounmap; 5134 5135 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5136 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5137 phba->mbox_ext = (phba->slim2p.virt + 5138 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5139 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5140 phba->IOCBs = (phba->slim2p.virt + 5141 offsetof(struct lpfc_sli2_slim, IOCBs)); 5142 5143 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5144 lpfc_sli_hbq_size(), 5145 &phba->hbqslimp.phys, 5146 GFP_KERNEL); 5147 if (!phba->hbqslimp.virt) 5148 goto out_free_slim; 5149 5150 hbq_count = lpfc_sli_hbq_count(); 5151 ptr = phba->hbqslimp.virt; 5152 for (i = 0; i < hbq_count; ++i) { 5153 phba->hbqs[i].hbq_virt = ptr; 5154 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5155 ptr += (lpfc_hbq_defs[i]->entry_count * 5156 sizeof(struct lpfc_hbq_entry)); 5157 } 5158 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5159 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5160 5161 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5162 5163 INIT_LIST_HEAD(&phba->rb_pend_list); 5164 5165 phba->MBslimaddr = phba->slim_memmap_p; 5166 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 5167 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 5168 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 5169 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 5170 5171 return 0; 5172 5173 out_free_slim: 5174 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5175 phba->slim2p.virt, phba->slim2p.phys); 5176 out_iounmap: 5177 iounmap(phba->ctrl_regs_memmap_p); 5178 out_iounmap_slim: 5179 iounmap(phba->slim_memmap_p); 5180 out: 5181 return error; 5182 } 5183 5184 /** 5185 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 5186 * @phba: pointer to lpfc hba data structure. 5187 * 5188 * This routine is invoked to unset the PCI device memory space for device 5189 * with SLI-3 interface spec. 5190 **/ 5191 static void 5192 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 5193 { 5194 struct pci_dev *pdev; 5195 5196 /* Obtain PCI device reference */ 5197 if (!phba->pcidev) 5198 return; 5199 else 5200 pdev = phba->pcidev; 5201 5202 /* Free coherent DMA memory allocated */ 5203 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 5204 phba->hbqslimp.virt, phba->hbqslimp.phys); 5205 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5206 phba->slim2p.virt, phba->slim2p.phys); 5207 5208 /* I/O memory unmap */ 5209 iounmap(phba->ctrl_regs_memmap_p); 5210 iounmap(phba->slim_memmap_p); 5211 5212 return; 5213 } 5214 5215 /** 5216 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 5217 * @phba: pointer to lpfc hba data structure. 5218 * 5219 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 5220 * done and check status. 5221 * 5222 * Return 0 if successful, otherwise -ENODEV. 5223 **/ 5224 int 5225 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 5226 { 5227 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg; 5228 int i, port_error = -ENODEV; 5229 5230 if (!phba->sli4_hba.STAregaddr) 5231 return -ENODEV; 5232 5233 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 5234 for (i = 0; i < 3000; i++) { 5235 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr); 5236 /* Encounter fatal POST error, break out */ 5237 if (bf_get(lpfc_hst_state_perr, &sta_reg)) { 5238 port_error = -ENODEV; 5239 break; 5240 } 5241 if (LPFC_POST_STAGE_ARMFW_READY == 5242 bf_get(lpfc_hst_state_port_status, &sta_reg)) { 5243 port_error = 0; 5244 break; 5245 } 5246 msleep(10); 5247 } 5248 5249 if (port_error) 5250 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5251 "1408 Failure HBA POST Status: sta_reg=0x%x, " 5252 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, " 5253 "dl=x%x, pstatus=x%x\n", sta_reg.word0, 5254 bf_get(lpfc_hst_state_perr, &sta_reg), 5255 bf_get(lpfc_hst_state_sfi, &sta_reg), 5256 bf_get(lpfc_hst_state_nip, &sta_reg), 5257 bf_get(lpfc_hst_state_ipc, &sta_reg), 5258 bf_get(lpfc_hst_state_xrom, &sta_reg), 5259 bf_get(lpfc_hst_state_dl, &sta_reg), 5260 bf_get(lpfc_hst_state_port_status, &sta_reg)); 5261 5262 /* Log device information */ 5263 phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr); 5264 if (bf_get(lpfc_sli_intf_valid, 5265 &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) { 5266 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5267 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, " 5268 "FeatureL1=0x%x, FeatureL2=0x%x\n", 5269 bf_get(lpfc_sli_intf_sli_family, 5270 &phba->sli4_hba.sli_intf), 5271 bf_get(lpfc_sli_intf_slirev, 5272 &phba->sli4_hba.sli_intf), 5273 bf_get(lpfc_sli_intf_featurelevel1, 5274 &phba->sli4_hba.sli_intf), 5275 bf_get(lpfc_sli_intf_featurelevel2, 5276 &phba->sli4_hba.sli_intf)); 5277 } 5278 phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr); 5279 phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr); 5280 /* With uncoverable error, log the error message and return error */ 5281 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr); 5282 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr); 5283 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 5284 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 5285 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5286 "1422 HBA Unrecoverable error: " 5287 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " 5288 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n", 5289 uerrlo_reg.word0, uerrhi_reg.word0, 5290 phba->sli4_hba.ue_mask_lo, 5291 phba->sli4_hba.ue_mask_hi); 5292 return -ENODEV; 5293 } 5294 5295 return port_error; 5296 } 5297 5298 /** 5299 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 5300 * @phba: pointer to lpfc hba data structure. 5301 * 5302 * This routine is invoked to set up SLI4 BAR0 PCI config space register 5303 * memory map. 5304 **/ 5305 static void 5306 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba) 5307 { 5308 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 5309 LPFC_UERR_STATUS_LO; 5310 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 5311 LPFC_UERR_STATUS_HI; 5312 phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 5313 LPFC_UE_MASK_LO; 5314 phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 5315 LPFC_UE_MASK_HI; 5316 phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p + 5317 LPFC_SLI_INTF; 5318 } 5319 5320 /** 5321 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 5322 * @phba: pointer to lpfc hba data structure. 5323 * 5324 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 5325 * memory map. 5326 **/ 5327 static void 5328 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 5329 { 5330 5331 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5332 LPFC_HST_STATE; 5333 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5334 LPFC_HST_ISR0; 5335 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5336 LPFC_HST_IMR0; 5337 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5338 LPFC_HST_ISCR0; 5339 return; 5340 } 5341 5342 /** 5343 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 5344 * @phba: pointer to lpfc hba data structure. 5345 * @vf: virtual function number 5346 * 5347 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 5348 * based on the given viftual function number, @vf. 5349 * 5350 * Return 0 if successful, otherwise -ENODEV. 5351 **/ 5352 static int 5353 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 5354 { 5355 if (vf > LPFC_VIR_FUNC_MAX) 5356 return -ENODEV; 5357 5358 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5359 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 5360 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5361 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 5362 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5363 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 5364 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5365 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 5366 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5367 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 5368 return 0; 5369 } 5370 5371 /** 5372 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 5373 * @phba: pointer to lpfc hba data structure. 5374 * 5375 * This routine is invoked to create the bootstrap mailbox 5376 * region consistent with the SLI-4 interface spec. This 5377 * routine allocates all memory necessary to communicate 5378 * mailbox commands to the port and sets up all alignment 5379 * needs. No locks are expected to be held when calling 5380 * this routine. 5381 * 5382 * Return codes 5383 * 0 - successful 5384 * ENOMEM - could not allocated memory. 5385 **/ 5386 static int 5387 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 5388 { 5389 uint32_t bmbx_size; 5390 struct lpfc_dmabuf *dmabuf; 5391 struct dma_address *dma_address; 5392 uint32_t pa_addr; 5393 uint64_t phys_addr; 5394 5395 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5396 if (!dmabuf) 5397 return -ENOMEM; 5398 5399 /* 5400 * The bootstrap mailbox region is comprised of 2 parts 5401 * plus an alignment restriction of 16 bytes. 5402 */ 5403 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 5404 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5405 bmbx_size, 5406 &dmabuf->phys, 5407 GFP_KERNEL); 5408 if (!dmabuf->virt) { 5409 kfree(dmabuf); 5410 return -ENOMEM; 5411 } 5412 memset(dmabuf->virt, 0, bmbx_size); 5413 5414 /* 5415 * Initialize the bootstrap mailbox pointers now so that the register 5416 * operations are simple later. The mailbox dma address is required 5417 * to be 16-byte aligned. Also align the virtual memory as each 5418 * maibox is copied into the bmbx mailbox region before issuing the 5419 * command to the port. 5420 */ 5421 phba->sli4_hba.bmbx.dmabuf = dmabuf; 5422 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 5423 5424 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 5425 LPFC_ALIGN_16_BYTE); 5426 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 5427 LPFC_ALIGN_16_BYTE); 5428 5429 /* 5430 * Set the high and low physical addresses now. The SLI4 alignment 5431 * requirement is 16 bytes and the mailbox is posted to the port 5432 * as two 30-bit addresses. The other data is a bit marking whether 5433 * the 30-bit address is the high or low address. 5434 * Upcast bmbx aphys to 64bits so shift instruction compiles 5435 * clean on 32 bit machines. 5436 */ 5437 dma_address = &phba->sli4_hba.bmbx.dma_address; 5438 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 5439 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 5440 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 5441 LPFC_BMBX_BIT1_ADDR_HI); 5442 5443 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 5444 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 5445 LPFC_BMBX_BIT1_ADDR_LO); 5446 return 0; 5447 } 5448 5449 /** 5450 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 5451 * @phba: pointer to lpfc hba data structure. 5452 * 5453 * This routine is invoked to teardown the bootstrap mailbox 5454 * region and release all host resources. This routine requires 5455 * the caller to ensure all mailbox commands recovered, no 5456 * additional mailbox comands are sent, and interrupts are disabled 5457 * before calling this routine. 5458 * 5459 **/ 5460 static void 5461 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 5462 { 5463 dma_free_coherent(&phba->pcidev->dev, 5464 phba->sli4_hba.bmbx.bmbx_size, 5465 phba->sli4_hba.bmbx.dmabuf->virt, 5466 phba->sli4_hba.bmbx.dmabuf->phys); 5467 5468 kfree(phba->sli4_hba.bmbx.dmabuf); 5469 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 5470 } 5471 5472 /** 5473 * lpfc_sli4_read_config - Get the config parameters. 5474 * @phba: pointer to lpfc hba data structure. 5475 * 5476 * This routine is invoked to read the configuration parameters from the HBA. 5477 * The configuration parameters are used to set the base and maximum values 5478 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 5479 * allocation for the port. 5480 * 5481 * Return codes 5482 * 0 - successful 5483 * ENOMEM - No availble memory 5484 * EIO - The mailbox failed to complete successfully. 5485 **/ 5486 static int 5487 lpfc_sli4_read_config(struct lpfc_hba *phba) 5488 { 5489 LPFC_MBOXQ_t *pmb; 5490 struct lpfc_mbx_read_config *rd_config; 5491 uint32_t rc = 0; 5492 5493 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5494 if (!pmb) { 5495 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5496 "2011 Unable to allocate memory for issuing " 5497 "SLI_CONFIG_SPECIAL mailbox command\n"); 5498 return -ENOMEM; 5499 } 5500 5501 lpfc_read_config(phba, pmb); 5502 5503 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 5504 if (rc != MBX_SUCCESS) { 5505 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5506 "2012 Mailbox failed , mbxCmd x%x " 5507 "READ_CONFIG, mbxStatus x%x\n", 5508 bf_get(lpfc_mqe_command, &pmb->u.mqe), 5509 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 5510 rc = -EIO; 5511 } else { 5512 rd_config = &pmb->u.mqe.un.rd_config; 5513 phba->sli4_hba.max_cfg_param.max_xri = 5514 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 5515 phba->sli4_hba.max_cfg_param.xri_base = 5516 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 5517 phba->sli4_hba.max_cfg_param.max_vpi = 5518 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 5519 phba->sli4_hba.max_cfg_param.vpi_base = 5520 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 5521 phba->sli4_hba.max_cfg_param.max_rpi = 5522 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 5523 phba->sli4_hba.max_cfg_param.rpi_base = 5524 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 5525 phba->sli4_hba.max_cfg_param.max_vfi = 5526 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 5527 phba->sli4_hba.max_cfg_param.vfi_base = 5528 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 5529 phba->sli4_hba.max_cfg_param.max_fcfi = 5530 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 5531 phba->sli4_hba.max_cfg_param.fcfi_base = 5532 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config); 5533 phba->sli4_hba.max_cfg_param.max_eq = 5534 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 5535 phba->sli4_hba.max_cfg_param.max_rq = 5536 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 5537 phba->sli4_hba.max_cfg_param.max_wq = 5538 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 5539 phba->sli4_hba.max_cfg_param.max_cq = 5540 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 5541 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 5542 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 5543 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 5544 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 5545 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 5546 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 5547 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 5548 phba->max_vports = phba->max_vpi; 5549 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5550 "2003 cfg params XRI(B:%d M:%d), " 5551 "VPI(B:%d M:%d) " 5552 "VFI(B:%d M:%d) " 5553 "RPI(B:%d M:%d) " 5554 "FCFI(B:%d M:%d)\n", 5555 phba->sli4_hba.max_cfg_param.xri_base, 5556 phba->sli4_hba.max_cfg_param.max_xri, 5557 phba->sli4_hba.max_cfg_param.vpi_base, 5558 phba->sli4_hba.max_cfg_param.max_vpi, 5559 phba->sli4_hba.max_cfg_param.vfi_base, 5560 phba->sli4_hba.max_cfg_param.max_vfi, 5561 phba->sli4_hba.max_cfg_param.rpi_base, 5562 phba->sli4_hba.max_cfg_param.max_rpi, 5563 phba->sli4_hba.max_cfg_param.fcfi_base, 5564 phba->sli4_hba.max_cfg_param.max_fcfi); 5565 } 5566 mempool_free(pmb, phba->mbox_mem_pool); 5567 5568 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 5569 if (phba->cfg_hba_queue_depth > 5570 (phba->sli4_hba.max_cfg_param.max_xri - 5571 lpfc_sli4_get_els_iocb_cnt(phba))) 5572 phba->cfg_hba_queue_depth = 5573 phba->sli4_hba.max_cfg_param.max_xri - 5574 lpfc_sli4_get_els_iocb_cnt(phba); 5575 return rc; 5576 } 5577 5578 /** 5579 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order. 5580 * @phba: pointer to lpfc hba data structure. 5581 * 5582 * This routine is invoked to setup the host-side endian order to the 5583 * HBA consistent with the SLI-4 interface spec. 5584 * 5585 * Return codes 5586 * 0 - successful 5587 * ENOMEM - No availble memory 5588 * EIO - The mailbox failed to complete successfully. 5589 **/ 5590 static int 5591 lpfc_setup_endian_order(struct lpfc_hba *phba) 5592 { 5593 LPFC_MBOXQ_t *mboxq; 5594 uint32_t rc = 0; 5595 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 5596 HOST_ENDIAN_HIGH_WORD1}; 5597 5598 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5599 if (!mboxq) { 5600 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5601 "0492 Unable to allocate memory for issuing " 5602 "SLI_CONFIG_SPECIAL mailbox command\n"); 5603 return -ENOMEM; 5604 } 5605 5606 /* 5607 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two 5608 * words to contain special data values and no other data. 5609 */ 5610 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 5611 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 5612 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5613 if (rc != MBX_SUCCESS) { 5614 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5615 "0493 SLI_CONFIG_SPECIAL mailbox failed with " 5616 "status x%x\n", 5617 rc); 5618 rc = -EIO; 5619 } 5620 5621 mempool_free(mboxq, phba->mbox_mem_pool); 5622 return rc; 5623 } 5624 5625 /** 5626 * lpfc_sli4_queue_create - Create all the SLI4 queues 5627 * @phba: pointer to lpfc hba data structure. 5628 * 5629 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 5630 * operation. For each SLI4 queue type, the parameters such as queue entry 5631 * count (queue depth) shall be taken from the module parameter. For now, 5632 * we just use some constant number as place holder. 5633 * 5634 * Return codes 5635 * 0 - successful 5636 * ENOMEM - No availble memory 5637 * EIO - The mailbox failed to complete successfully. 5638 **/ 5639 static int 5640 lpfc_sli4_queue_create(struct lpfc_hba *phba) 5641 { 5642 struct lpfc_queue *qdesc; 5643 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5644 int cfg_fcp_wq_count; 5645 int cfg_fcp_eq_count; 5646 5647 /* 5648 * Sanity check for confiugred queue parameters against the run-time 5649 * device parameters 5650 */ 5651 5652 /* Sanity check on FCP fast-path WQ parameters */ 5653 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 5654 if (cfg_fcp_wq_count > 5655 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 5656 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 5657 LPFC_SP_WQN_DEF; 5658 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 5659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5660 "2581 Not enough WQs (%d) from " 5661 "the pci function for supporting " 5662 "FCP WQs (%d)\n", 5663 phba->sli4_hba.max_cfg_param.max_wq, 5664 phba->cfg_fcp_wq_count); 5665 goto out_error; 5666 } 5667 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5668 "2582 Not enough WQs (%d) from the pci " 5669 "function for supporting the requested " 5670 "FCP WQs (%d), the actual FCP WQs can " 5671 "be supported: %d\n", 5672 phba->sli4_hba.max_cfg_param.max_wq, 5673 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 5674 } 5675 /* The actual number of FCP work queues adopted */ 5676 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 5677 5678 /* Sanity check on FCP fast-path EQ parameters */ 5679 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 5680 if (cfg_fcp_eq_count > 5681 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 5682 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 5683 LPFC_SP_EQN_DEF; 5684 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 5685 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5686 "2574 Not enough EQs (%d) from the " 5687 "pci function for supporting FCP " 5688 "EQs (%d)\n", 5689 phba->sli4_hba.max_cfg_param.max_eq, 5690 phba->cfg_fcp_eq_count); 5691 goto out_error; 5692 } 5693 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5694 "2575 Not enough EQs (%d) from the pci " 5695 "function for supporting the requested " 5696 "FCP EQs (%d), the actual FCP EQs can " 5697 "be supported: %d\n", 5698 phba->sli4_hba.max_cfg_param.max_eq, 5699 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 5700 } 5701 /* It does not make sense to have more EQs than WQs */ 5702 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 5703 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5704 "2593 The FCP EQ count(%d) cannot be greater " 5705 "than the FCP WQ count(%d), limiting the " 5706 "FCP EQ count to %d\n", cfg_fcp_eq_count, 5707 phba->cfg_fcp_wq_count, 5708 phba->cfg_fcp_wq_count); 5709 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 5710 } 5711 /* The actual number of FCP event queues adopted */ 5712 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 5713 /* The overall number of event queues used */ 5714 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 5715 5716 /* 5717 * Create Event Queues (EQs) 5718 */ 5719 5720 /* Get EQ depth from module parameter, fake the default for now */ 5721 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 5722 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 5723 5724 /* Create slow path event queue */ 5725 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5726 phba->sli4_hba.eq_ecount); 5727 if (!qdesc) { 5728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5729 "0496 Failed allocate slow-path EQ\n"); 5730 goto out_error; 5731 } 5732 phba->sli4_hba.sp_eq = qdesc; 5733 5734 /* Create fast-path FCP Event Queue(s) */ 5735 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 5736 phba->cfg_fcp_eq_count), GFP_KERNEL); 5737 if (!phba->sli4_hba.fp_eq) { 5738 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5739 "2576 Failed allocate memory for fast-path " 5740 "EQ record array\n"); 5741 goto out_free_sp_eq; 5742 } 5743 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5744 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5745 phba->sli4_hba.eq_ecount); 5746 if (!qdesc) { 5747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5748 "0497 Failed allocate fast-path EQ\n"); 5749 goto out_free_fp_eq; 5750 } 5751 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 5752 } 5753 5754 /* 5755 * Create Complete Queues (CQs) 5756 */ 5757 5758 /* Get CQ depth from module parameter, fake the default for now */ 5759 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 5760 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 5761 5762 /* Create slow-path Mailbox Command Complete Queue */ 5763 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5764 phba->sli4_hba.cq_ecount); 5765 if (!qdesc) { 5766 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5767 "0500 Failed allocate slow-path mailbox CQ\n"); 5768 goto out_free_fp_eq; 5769 } 5770 phba->sli4_hba.mbx_cq = qdesc; 5771 5772 /* Create slow-path ELS Complete Queue */ 5773 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5774 phba->sli4_hba.cq_ecount); 5775 if (!qdesc) { 5776 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5777 "0501 Failed allocate slow-path ELS CQ\n"); 5778 goto out_free_mbx_cq; 5779 } 5780 phba->sli4_hba.els_cq = qdesc; 5781 5782 5783 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ 5784 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 5785 phba->cfg_fcp_eq_count), GFP_KERNEL); 5786 if (!phba->sli4_hba.fcp_cq) { 5787 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5788 "2577 Failed allocate memory for fast-path " 5789 "CQ record array\n"); 5790 goto out_free_els_cq; 5791 } 5792 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5793 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5794 phba->sli4_hba.cq_ecount); 5795 if (!qdesc) { 5796 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5797 "0499 Failed allocate fast-path FCP " 5798 "CQ (%d)\n", fcp_cqidx); 5799 goto out_free_fcp_cq; 5800 } 5801 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 5802 } 5803 5804 /* Create Mailbox Command Queue */ 5805 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 5806 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 5807 5808 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 5809 phba->sli4_hba.mq_ecount); 5810 if (!qdesc) { 5811 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5812 "0505 Failed allocate slow-path MQ\n"); 5813 goto out_free_fcp_cq; 5814 } 5815 phba->sli4_hba.mbx_wq = qdesc; 5816 5817 /* 5818 * Create all the Work Queues (WQs) 5819 */ 5820 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 5821 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 5822 5823 /* Create slow-path ELS Work Queue */ 5824 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5825 phba->sli4_hba.wq_ecount); 5826 if (!qdesc) { 5827 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5828 "0504 Failed allocate slow-path ELS WQ\n"); 5829 goto out_free_mbx_wq; 5830 } 5831 phba->sli4_hba.els_wq = qdesc; 5832 5833 /* Create fast-path FCP Work Queue(s) */ 5834 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 5835 phba->cfg_fcp_wq_count), GFP_KERNEL); 5836 if (!phba->sli4_hba.fcp_wq) { 5837 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5838 "2578 Failed allocate memory for fast-path " 5839 "WQ record array\n"); 5840 goto out_free_els_wq; 5841 } 5842 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5843 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5844 phba->sli4_hba.wq_ecount); 5845 if (!qdesc) { 5846 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5847 "0503 Failed allocate fast-path FCP " 5848 "WQ (%d)\n", fcp_wqidx); 5849 goto out_free_fcp_wq; 5850 } 5851 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 5852 } 5853 5854 /* 5855 * Create Receive Queue (RQ) 5856 */ 5857 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 5858 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 5859 5860 /* Create Receive Queue for header */ 5861 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5862 phba->sli4_hba.rq_ecount); 5863 if (!qdesc) { 5864 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5865 "0506 Failed allocate receive HRQ\n"); 5866 goto out_free_fcp_wq; 5867 } 5868 phba->sli4_hba.hdr_rq = qdesc; 5869 5870 /* Create Receive Queue for data */ 5871 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5872 phba->sli4_hba.rq_ecount); 5873 if (!qdesc) { 5874 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5875 "0507 Failed allocate receive DRQ\n"); 5876 goto out_free_hdr_rq; 5877 } 5878 phba->sli4_hba.dat_rq = qdesc; 5879 5880 return 0; 5881 5882 out_free_hdr_rq: 5883 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5884 phba->sli4_hba.hdr_rq = NULL; 5885 out_free_fcp_wq: 5886 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 5887 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 5888 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 5889 } 5890 kfree(phba->sli4_hba.fcp_wq); 5891 out_free_els_wq: 5892 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5893 phba->sli4_hba.els_wq = NULL; 5894 out_free_mbx_wq: 5895 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5896 phba->sli4_hba.mbx_wq = NULL; 5897 out_free_fcp_cq: 5898 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 5899 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 5900 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 5901 } 5902 kfree(phba->sli4_hba.fcp_cq); 5903 out_free_els_cq: 5904 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5905 phba->sli4_hba.els_cq = NULL; 5906 out_free_mbx_cq: 5907 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5908 phba->sli4_hba.mbx_cq = NULL; 5909 out_free_fp_eq: 5910 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 5911 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 5912 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 5913 } 5914 kfree(phba->sli4_hba.fp_eq); 5915 out_free_sp_eq: 5916 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5917 phba->sli4_hba.sp_eq = NULL; 5918 out_error: 5919 return -ENOMEM; 5920 } 5921 5922 /** 5923 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 5924 * @phba: pointer to lpfc hba data structure. 5925 * 5926 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 5927 * operation. 5928 * 5929 * Return codes 5930 * 0 - successful 5931 * ENOMEM - No availble memory 5932 * EIO - The mailbox failed to complete successfully. 5933 **/ 5934 static void 5935 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 5936 { 5937 int fcp_qidx; 5938 5939 /* Release mailbox command work queue */ 5940 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5941 phba->sli4_hba.mbx_wq = NULL; 5942 5943 /* Release ELS work queue */ 5944 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5945 phba->sli4_hba.els_wq = NULL; 5946 5947 /* Release FCP work queue */ 5948 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5949 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 5950 kfree(phba->sli4_hba.fcp_wq); 5951 phba->sli4_hba.fcp_wq = NULL; 5952 5953 /* Release unsolicited receive queue */ 5954 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5955 phba->sli4_hba.hdr_rq = NULL; 5956 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 5957 phba->sli4_hba.dat_rq = NULL; 5958 5959 /* Release ELS complete queue */ 5960 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5961 phba->sli4_hba.els_cq = NULL; 5962 5963 /* Release mailbox command complete queue */ 5964 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5965 phba->sli4_hba.mbx_cq = NULL; 5966 5967 /* Release FCP response complete queue */ 5968 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5969 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 5970 kfree(phba->sli4_hba.fcp_cq); 5971 phba->sli4_hba.fcp_cq = NULL; 5972 5973 /* Release fast-path event queue */ 5974 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5975 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 5976 kfree(phba->sli4_hba.fp_eq); 5977 phba->sli4_hba.fp_eq = NULL; 5978 5979 /* Release slow-path event queue */ 5980 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5981 phba->sli4_hba.sp_eq = NULL; 5982 5983 return; 5984 } 5985 5986 /** 5987 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 5988 * @phba: pointer to lpfc hba data structure. 5989 * 5990 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 5991 * operation. 5992 * 5993 * Return codes 5994 * 0 - successful 5995 * ENOMEM - No availble memory 5996 * EIO - The mailbox failed to complete successfully. 5997 **/ 5998 int 5999 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 6000 { 6001 int rc = -ENOMEM; 6002 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6003 int fcp_cq_index = 0; 6004 6005 /* 6006 * Set up Event Queues (EQs) 6007 */ 6008 6009 /* Set up slow-path event queue */ 6010 if (!phba->sli4_hba.sp_eq) { 6011 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6012 "0520 Slow-path EQ not allocated\n"); 6013 goto out_error; 6014 } 6015 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 6016 LPFC_SP_DEF_IMAX); 6017 if (rc) { 6018 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6019 "0521 Failed setup of slow-path EQ: " 6020 "rc = 0x%x\n", rc); 6021 goto out_error; 6022 } 6023 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6024 "2583 Slow-path EQ setup: queue-id=%d\n", 6025 phba->sli4_hba.sp_eq->queue_id); 6026 6027 /* Set up fast-path event queue */ 6028 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6029 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 6030 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6031 "0522 Fast-path EQ (%d) not " 6032 "allocated\n", fcp_eqidx); 6033 goto out_destroy_fp_eq; 6034 } 6035 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 6036 phba->cfg_fcp_imax); 6037 if (rc) { 6038 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6039 "0523 Failed setup of fast-path EQ " 6040 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 6041 goto out_destroy_fp_eq; 6042 } 6043 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6044 "2584 Fast-path EQ setup: " 6045 "queue[%d]-id=%d\n", fcp_eqidx, 6046 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 6047 } 6048 6049 /* 6050 * Set up Complete Queues (CQs) 6051 */ 6052 6053 /* Set up slow-path MBOX Complete Queue as the first CQ */ 6054 if (!phba->sli4_hba.mbx_cq) { 6055 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6056 "0528 Mailbox CQ not allocated\n"); 6057 goto out_destroy_fp_eq; 6058 } 6059 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 6060 LPFC_MCQ, LPFC_MBOX); 6061 if (rc) { 6062 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6063 "0529 Failed setup of slow-path mailbox CQ: " 6064 "rc = 0x%x\n", rc); 6065 goto out_destroy_fp_eq; 6066 } 6067 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6068 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 6069 phba->sli4_hba.mbx_cq->queue_id, 6070 phba->sli4_hba.sp_eq->queue_id); 6071 6072 /* Set up slow-path ELS Complete Queue */ 6073 if (!phba->sli4_hba.els_cq) { 6074 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6075 "0530 ELS CQ not allocated\n"); 6076 goto out_destroy_mbx_cq; 6077 } 6078 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 6079 LPFC_WCQ, LPFC_ELS); 6080 if (rc) { 6081 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6082 "0531 Failed setup of slow-path ELS CQ: " 6083 "rc = 0x%x\n", rc); 6084 goto out_destroy_mbx_cq; 6085 } 6086 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6087 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 6088 phba->sli4_hba.els_cq->queue_id, 6089 phba->sli4_hba.sp_eq->queue_id); 6090 6091 /* Set up fast-path FCP Response Complete Queue */ 6092 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 6093 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 6094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6095 "0526 Fast-path FCP CQ (%d) not " 6096 "allocated\n", fcp_cqidx); 6097 goto out_destroy_fcp_cq; 6098 } 6099 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 6100 phba->sli4_hba.fp_eq[fcp_cqidx], 6101 LPFC_WCQ, LPFC_FCP); 6102 if (rc) { 6103 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6104 "0527 Failed setup of fast-path FCP " 6105 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 6106 goto out_destroy_fcp_cq; 6107 } 6108 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6109 "2588 FCP CQ setup: cq[%d]-id=%d, " 6110 "parent eq[%d]-id=%d\n", 6111 fcp_cqidx, 6112 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 6113 fcp_cqidx, 6114 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id); 6115 } 6116 6117 /* 6118 * Set up all the Work Queues (WQs) 6119 */ 6120 6121 /* Set up Mailbox Command Queue */ 6122 if (!phba->sli4_hba.mbx_wq) { 6123 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6124 "0538 Slow-path MQ not allocated\n"); 6125 goto out_destroy_fcp_cq; 6126 } 6127 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 6128 phba->sli4_hba.mbx_cq, LPFC_MBOX); 6129 if (rc) { 6130 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6131 "0539 Failed setup of slow-path MQ: " 6132 "rc = 0x%x\n", rc); 6133 goto out_destroy_fcp_cq; 6134 } 6135 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6136 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 6137 phba->sli4_hba.mbx_wq->queue_id, 6138 phba->sli4_hba.mbx_cq->queue_id); 6139 6140 /* Set up slow-path ELS Work Queue */ 6141 if (!phba->sli4_hba.els_wq) { 6142 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6143 "0536 Slow-path ELS WQ not allocated\n"); 6144 goto out_destroy_mbx_wq; 6145 } 6146 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 6147 phba->sli4_hba.els_cq, LPFC_ELS); 6148 if (rc) { 6149 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6150 "0537 Failed setup of slow-path ELS WQ: " 6151 "rc = 0x%x\n", rc); 6152 goto out_destroy_mbx_wq; 6153 } 6154 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6155 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 6156 phba->sli4_hba.els_wq->queue_id, 6157 phba->sli4_hba.els_cq->queue_id); 6158 6159 /* Set up fast-path FCP Work Queue */ 6160 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6161 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 6162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6163 "0534 Fast-path FCP WQ (%d) not " 6164 "allocated\n", fcp_wqidx); 6165 goto out_destroy_fcp_wq; 6166 } 6167 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 6168 phba->sli4_hba.fcp_cq[fcp_cq_index], 6169 LPFC_FCP); 6170 if (rc) { 6171 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6172 "0535 Failed setup of fast-path FCP " 6173 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 6174 goto out_destroy_fcp_wq; 6175 } 6176 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6177 "2591 FCP WQ setup: wq[%d]-id=%d, " 6178 "parent cq[%d]-id=%d\n", 6179 fcp_wqidx, 6180 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 6181 fcp_cq_index, 6182 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 6183 /* Round robin FCP Work Queue's Completion Queue assignment */ 6184 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count); 6185 } 6186 6187 /* 6188 * Create Receive Queue (RQ) 6189 */ 6190 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 6191 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6192 "0540 Receive Queue not allocated\n"); 6193 goto out_destroy_fcp_wq; 6194 } 6195 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 6196 phba->sli4_hba.els_cq, LPFC_USOL); 6197 if (rc) { 6198 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6199 "0541 Failed setup of Receive Queue: " 6200 "rc = 0x%x\n", rc); 6201 goto out_destroy_fcp_wq; 6202 } 6203 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6204 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 6205 "parent cq-id=%d\n", 6206 phba->sli4_hba.hdr_rq->queue_id, 6207 phba->sli4_hba.dat_rq->queue_id, 6208 phba->sli4_hba.els_cq->queue_id); 6209 return 0; 6210 6211 out_destroy_fcp_wq: 6212 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 6213 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 6214 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6215 out_destroy_mbx_wq: 6216 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6217 out_destroy_fcp_cq: 6218 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 6219 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 6220 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6221 out_destroy_mbx_cq: 6222 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6223 out_destroy_fp_eq: 6224 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 6225 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 6226 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6227 out_error: 6228 return rc; 6229 } 6230 6231 /** 6232 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 6233 * @phba: pointer to lpfc hba data structure. 6234 * 6235 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 6236 * operation. 6237 * 6238 * Return codes 6239 * 0 - successful 6240 * ENOMEM - No availble memory 6241 * EIO - The mailbox failed to complete successfully. 6242 **/ 6243 void 6244 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 6245 { 6246 int fcp_qidx; 6247 6248 /* Unset mailbox command work queue */ 6249 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6250 /* Unset ELS work queue */ 6251 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6252 /* Unset unsolicited receive queue */ 6253 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 6254 /* Unset FCP work queue */ 6255 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6256 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 6257 /* Unset mailbox command complete queue */ 6258 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6259 /* Unset ELS complete queue */ 6260 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6261 /* Unset FCP response complete queue */ 6262 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6263 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 6264 /* Unset fast-path event queue */ 6265 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6266 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 6267 /* Unset slow-path event queue */ 6268 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6269 } 6270 6271 /** 6272 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 6273 * @phba: pointer to lpfc hba data structure. 6274 * 6275 * This routine is invoked to allocate and set up a pool of completion queue 6276 * events. The body of the completion queue event is a completion queue entry 6277 * CQE. For now, this pool is used for the interrupt service routine to queue 6278 * the following HBA completion queue events for the worker thread to process: 6279 * - Mailbox asynchronous events 6280 * - Receive queue completion unsolicited events 6281 * Later, this can be used for all the slow-path events. 6282 * 6283 * Return codes 6284 * 0 - successful 6285 * -ENOMEM - No availble memory 6286 **/ 6287 static int 6288 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 6289 { 6290 struct lpfc_cq_event *cq_event; 6291 int i; 6292 6293 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 6294 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 6295 if (!cq_event) 6296 goto out_pool_create_fail; 6297 list_add_tail(&cq_event->list, 6298 &phba->sli4_hba.sp_cqe_event_pool); 6299 } 6300 return 0; 6301 6302 out_pool_create_fail: 6303 lpfc_sli4_cq_event_pool_destroy(phba); 6304 return -ENOMEM; 6305 } 6306 6307 /** 6308 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 6309 * @phba: pointer to lpfc hba data structure. 6310 * 6311 * This routine is invoked to free the pool of completion queue events at 6312 * driver unload time. Note that, it is the responsibility of the driver 6313 * cleanup routine to free all the outstanding completion-queue events 6314 * allocated from this pool back into the pool before invoking this routine 6315 * to destroy the pool. 6316 **/ 6317 static void 6318 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 6319 { 6320 struct lpfc_cq_event *cq_event, *next_cq_event; 6321 6322 list_for_each_entry_safe(cq_event, next_cq_event, 6323 &phba->sli4_hba.sp_cqe_event_pool, list) { 6324 list_del(&cq_event->list); 6325 kfree(cq_event); 6326 } 6327 } 6328 6329 /** 6330 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6331 * @phba: pointer to lpfc hba data structure. 6332 * 6333 * This routine is the lock free version of the API invoked to allocate a 6334 * completion-queue event from the free pool. 6335 * 6336 * Return: Pointer to the newly allocated completion-queue event if successful 6337 * NULL otherwise. 6338 **/ 6339 struct lpfc_cq_event * 6340 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6341 { 6342 struct lpfc_cq_event *cq_event = NULL; 6343 6344 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 6345 struct lpfc_cq_event, list); 6346 return cq_event; 6347 } 6348 6349 /** 6350 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6351 * @phba: pointer to lpfc hba data structure. 6352 * 6353 * This routine is the lock version of the API invoked to allocate a 6354 * completion-queue event from the free pool. 6355 * 6356 * Return: Pointer to the newly allocated completion-queue event if successful 6357 * NULL otherwise. 6358 **/ 6359 struct lpfc_cq_event * 6360 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6361 { 6362 struct lpfc_cq_event *cq_event; 6363 unsigned long iflags; 6364 6365 spin_lock_irqsave(&phba->hbalock, iflags); 6366 cq_event = __lpfc_sli4_cq_event_alloc(phba); 6367 spin_unlock_irqrestore(&phba->hbalock, iflags); 6368 return cq_event; 6369 } 6370 6371 /** 6372 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6373 * @phba: pointer to lpfc hba data structure. 6374 * @cq_event: pointer to the completion queue event to be freed. 6375 * 6376 * This routine is the lock free version of the API invoked to release a 6377 * completion-queue event back into the free pool. 6378 **/ 6379 void 6380 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6381 struct lpfc_cq_event *cq_event) 6382 { 6383 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 6384 } 6385 6386 /** 6387 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6388 * @phba: pointer to lpfc hba data structure. 6389 * @cq_event: pointer to the completion queue event to be freed. 6390 * 6391 * This routine is the lock version of the API invoked to release a 6392 * completion-queue event back into the free pool. 6393 **/ 6394 void 6395 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6396 struct lpfc_cq_event *cq_event) 6397 { 6398 unsigned long iflags; 6399 spin_lock_irqsave(&phba->hbalock, iflags); 6400 __lpfc_sli4_cq_event_release(phba, cq_event); 6401 spin_unlock_irqrestore(&phba->hbalock, iflags); 6402 } 6403 6404 /** 6405 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 6406 * @phba: pointer to lpfc hba data structure. 6407 * 6408 * This routine is to free all the pending completion-queue events to the 6409 * back into the free pool for device reset. 6410 **/ 6411 static void 6412 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 6413 { 6414 LIST_HEAD(cqelist); 6415 struct lpfc_cq_event *cqe; 6416 unsigned long iflags; 6417 6418 /* Retrieve all the pending WCQEs from pending WCQE lists */ 6419 spin_lock_irqsave(&phba->hbalock, iflags); 6420 /* Pending FCP XRI abort events */ 6421 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 6422 &cqelist); 6423 /* Pending ELS XRI abort events */ 6424 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 6425 &cqelist); 6426 /* Pending asynnc events */ 6427 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 6428 &cqelist); 6429 spin_unlock_irqrestore(&phba->hbalock, iflags); 6430 6431 while (!list_empty(&cqelist)) { 6432 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 6433 lpfc_sli4_cq_event_release(phba, cqe); 6434 } 6435 } 6436 6437 /** 6438 * lpfc_pci_function_reset - Reset pci function. 6439 * @phba: pointer to lpfc hba data structure. 6440 * 6441 * This routine is invoked to request a PCI function reset. It will destroys 6442 * all resources assigned to the PCI function which originates this request. 6443 * 6444 * Return codes 6445 * 0 - successful 6446 * ENOMEM - No availble memory 6447 * EIO - The mailbox failed to complete successfully. 6448 **/ 6449 int 6450 lpfc_pci_function_reset(struct lpfc_hba *phba) 6451 { 6452 LPFC_MBOXQ_t *mboxq; 6453 uint32_t rc = 0; 6454 uint32_t shdr_status, shdr_add_status; 6455 union lpfc_sli4_cfg_shdr *shdr; 6456 6457 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6458 if (!mboxq) { 6459 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6460 "0494 Unable to allocate memory for issuing " 6461 "SLI_FUNCTION_RESET mailbox command\n"); 6462 return -ENOMEM; 6463 } 6464 6465 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */ 6466 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6467 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 6468 LPFC_SLI4_MBX_EMBED); 6469 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6470 shdr = (union lpfc_sli4_cfg_shdr *) 6471 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6472 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6473 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6474 if (rc != MBX_TIMEOUT) 6475 mempool_free(mboxq, phba->mbox_mem_pool); 6476 if (shdr_status || shdr_add_status || rc) { 6477 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6478 "0495 SLI_FUNCTION_RESET mailbox failed with " 6479 "status x%x add_status x%x, mbx status x%x\n", 6480 shdr_status, shdr_add_status, rc); 6481 rc = -ENXIO; 6482 } 6483 return rc; 6484 } 6485 6486 /** 6487 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 6488 * @phba: pointer to lpfc hba data structure. 6489 * @cnt: number of nop mailbox commands to send. 6490 * 6491 * This routine is invoked to send a number @cnt of NOP mailbox command and 6492 * wait for each command to complete. 6493 * 6494 * Return: the number of NOP mailbox command completed. 6495 **/ 6496 static int 6497 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 6498 { 6499 LPFC_MBOXQ_t *mboxq; 6500 int length, cmdsent; 6501 uint32_t mbox_tmo; 6502 uint32_t rc = 0; 6503 uint32_t shdr_status, shdr_add_status; 6504 union lpfc_sli4_cfg_shdr *shdr; 6505 6506 if (cnt == 0) { 6507 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6508 "2518 Requested to send 0 NOP mailbox cmd\n"); 6509 return cnt; 6510 } 6511 6512 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6513 if (!mboxq) { 6514 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6515 "2519 Unable to allocate memory for issuing " 6516 "NOP mailbox command\n"); 6517 return 0; 6518 } 6519 6520 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 6521 length = (sizeof(struct lpfc_mbx_nop) - 6522 sizeof(struct lpfc_sli4_cfg_mhdr)); 6523 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6524 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 6525 6526 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 6527 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 6528 if (!phba->sli4_hba.intr_enable) 6529 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6530 else 6531 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 6532 if (rc == MBX_TIMEOUT) 6533 break; 6534 /* Check return status */ 6535 shdr = (union lpfc_sli4_cfg_shdr *) 6536 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6537 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6538 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 6539 &shdr->response); 6540 if (shdr_status || shdr_add_status || rc) { 6541 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6542 "2520 NOP mailbox command failed " 6543 "status x%x add_status x%x mbx " 6544 "status x%x\n", shdr_status, 6545 shdr_add_status, rc); 6546 break; 6547 } 6548 } 6549 6550 if (rc != MBX_TIMEOUT) 6551 mempool_free(mboxq, phba->mbox_mem_pool); 6552 6553 return cmdsent; 6554 } 6555 6556 /** 6557 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device 6558 * @phba: pointer to lpfc hba data structure. 6559 * @fcfi: fcf index. 6560 * 6561 * This routine is invoked to unregister a FCFI from device. 6562 **/ 6563 void 6564 lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi) 6565 { 6566 LPFC_MBOXQ_t *mbox; 6567 uint32_t mbox_tmo; 6568 int rc; 6569 unsigned long flags; 6570 6571 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6572 6573 if (!mbox) 6574 return; 6575 6576 lpfc_unreg_fcfi(mbox, fcfi); 6577 6578 if (!phba->sli4_hba.intr_enable) 6579 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 6580 else { 6581 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 6582 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); 6583 } 6584 if (rc != MBX_TIMEOUT) 6585 mempool_free(mbox, phba->mbox_mem_pool); 6586 if (rc != MBX_SUCCESS) 6587 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6588 "2517 Unregister FCFI command failed " 6589 "status %d, mbxStatus x%x\n", rc, 6590 bf_get(lpfc_mqe_status, &mbox->u.mqe)); 6591 else { 6592 spin_lock_irqsave(&phba->hbalock, flags); 6593 /* Mark the FCFI is no longer registered */ 6594 phba->fcf.fcf_flag &= 6595 ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_SCAN_DONE); 6596 spin_unlock_irqrestore(&phba->hbalock, flags); 6597 } 6598 } 6599 6600 /** 6601 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 6602 * @phba: pointer to lpfc hba data structure. 6603 * 6604 * This routine is invoked to set up the PCI device memory space for device 6605 * with SLI-4 interface spec. 6606 * 6607 * Return codes 6608 * 0 - successful 6609 * other values - error 6610 **/ 6611 static int 6612 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 6613 { 6614 struct pci_dev *pdev; 6615 unsigned long bar0map_len, bar1map_len, bar2map_len; 6616 int error = -ENODEV; 6617 6618 /* Obtain PCI device reference */ 6619 if (!phba->pcidev) 6620 return error; 6621 else 6622 pdev = phba->pcidev; 6623 6624 /* Set the device DMA mask size */ 6625 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6626 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6627 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6628 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6629 return error; 6630 } 6631 } 6632 6633 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the 6634 * number of bytes required by each mapping. They are actually 6635 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device. 6636 */ 6637 if (pci_resource_start(pdev, 0)) { 6638 phba->pci_bar0_map = pci_resource_start(pdev, 0); 6639 bar0map_len = pci_resource_len(pdev, 0); 6640 } else { 6641 phba->pci_bar0_map = pci_resource_start(pdev, 1); 6642 bar0map_len = pci_resource_len(pdev, 1); 6643 } 6644 phba->pci_bar1_map = pci_resource_start(pdev, 2); 6645 bar1map_len = pci_resource_len(pdev, 2); 6646 6647 phba->pci_bar2_map = pci_resource_start(pdev, 4); 6648 bar2map_len = pci_resource_len(pdev, 4); 6649 6650 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */ 6651 phba->sli4_hba.conf_regs_memmap_p = 6652 ioremap(phba->pci_bar0_map, bar0map_len); 6653 if (!phba->sli4_hba.conf_regs_memmap_p) { 6654 dev_printk(KERN_ERR, &pdev->dev, 6655 "ioremap failed for SLI4 PCI config registers.\n"); 6656 goto out; 6657 } 6658 6659 /* Map SLI4 HBA Control Register base to a kernel virtual address. */ 6660 phba->sli4_hba.ctrl_regs_memmap_p = 6661 ioremap(phba->pci_bar1_map, bar1map_len); 6662 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 6663 dev_printk(KERN_ERR, &pdev->dev, 6664 "ioremap failed for SLI4 HBA control registers.\n"); 6665 goto out_iounmap_conf; 6666 } 6667 6668 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */ 6669 phba->sli4_hba.drbl_regs_memmap_p = 6670 ioremap(phba->pci_bar2_map, bar2map_len); 6671 if (!phba->sli4_hba.drbl_regs_memmap_p) { 6672 dev_printk(KERN_ERR, &pdev->dev, 6673 "ioremap failed for SLI4 HBA doorbell registers.\n"); 6674 goto out_iounmap_ctrl; 6675 } 6676 6677 /* Set up BAR0 PCI config space register memory map */ 6678 lpfc_sli4_bar0_register_memmap(phba); 6679 6680 /* Set up BAR1 register memory map */ 6681 lpfc_sli4_bar1_register_memmap(phba); 6682 6683 /* Set up BAR2 register memory map */ 6684 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 6685 if (error) 6686 goto out_iounmap_all; 6687 6688 return 0; 6689 6690 out_iounmap_all: 6691 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6692 out_iounmap_ctrl: 6693 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6694 out_iounmap_conf: 6695 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6696 out: 6697 return error; 6698 } 6699 6700 /** 6701 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 6702 * @phba: pointer to lpfc hba data structure. 6703 * 6704 * This routine is invoked to unset the PCI device memory space for device 6705 * with SLI-4 interface spec. 6706 **/ 6707 static void 6708 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 6709 { 6710 struct pci_dev *pdev; 6711 6712 /* Obtain PCI device reference */ 6713 if (!phba->pcidev) 6714 return; 6715 else 6716 pdev = phba->pcidev; 6717 6718 /* Free coherent DMA memory allocated */ 6719 6720 /* Unmap I/O memory space */ 6721 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6722 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6723 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6724 6725 return; 6726 } 6727 6728 /** 6729 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 6730 * @phba: pointer to lpfc hba data structure. 6731 * 6732 * This routine is invoked to enable the MSI-X interrupt vectors to device 6733 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 6734 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 6735 * invoked, enables either all or nothing, depending on the current 6736 * availability of PCI vector resources. The device driver is responsible 6737 * for calling the individual request_irq() to register each MSI-X vector 6738 * with a interrupt handler, which is done in this function. Note that 6739 * later when device is unloading, the driver should always call free_irq() 6740 * on all MSI-X vectors it has done request_irq() on before calling 6741 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 6742 * will be left with MSI-X enabled and leaks its vectors. 6743 * 6744 * Return codes 6745 * 0 - successful 6746 * other values - error 6747 **/ 6748 static int 6749 lpfc_sli_enable_msix(struct lpfc_hba *phba) 6750 { 6751 int rc, i; 6752 LPFC_MBOXQ_t *pmb; 6753 6754 /* Set up MSI-X multi-message vectors */ 6755 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6756 phba->msix_entries[i].entry = i; 6757 6758 /* Configure MSI-X capability structure */ 6759 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 6760 ARRAY_SIZE(phba->msix_entries)); 6761 if (rc) { 6762 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6763 "0420 PCI enable MSI-X failed (%d)\n", rc); 6764 goto msi_fail_out; 6765 } 6766 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6767 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6768 "0477 MSI-X entry[%d]: vector=x%x " 6769 "message=%d\n", i, 6770 phba->msix_entries[i].vector, 6771 phba->msix_entries[i].entry); 6772 /* 6773 * Assign MSI-X vectors to interrupt handlers 6774 */ 6775 6776 /* vector-0 is associated to slow-path handler */ 6777 rc = request_irq(phba->msix_entries[0].vector, 6778 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 6779 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6780 if (rc) { 6781 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6782 "0421 MSI-X slow-path request_irq failed " 6783 "(%d)\n", rc); 6784 goto msi_fail_out; 6785 } 6786 6787 /* vector-1 is associated to fast-path handler */ 6788 rc = request_irq(phba->msix_entries[1].vector, 6789 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 6790 LPFC_FP_DRIVER_HANDLER_NAME, phba); 6791 6792 if (rc) { 6793 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6794 "0429 MSI-X fast-path request_irq failed " 6795 "(%d)\n", rc); 6796 goto irq_fail_out; 6797 } 6798 6799 /* 6800 * Configure HBA MSI-X attention conditions to messages 6801 */ 6802 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6803 6804 if (!pmb) { 6805 rc = -ENOMEM; 6806 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6807 "0474 Unable to allocate memory for issuing " 6808 "MBOX_CONFIG_MSI command\n"); 6809 goto mem_fail_out; 6810 } 6811 rc = lpfc_config_msi(phba, pmb); 6812 if (rc) 6813 goto mbx_fail_out; 6814 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6815 if (rc != MBX_SUCCESS) { 6816 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 6817 "0351 Config MSI mailbox command failed, " 6818 "mbxCmd x%x, mbxStatus x%x\n", 6819 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 6820 goto mbx_fail_out; 6821 } 6822 6823 /* Free memory allocated for mailbox command */ 6824 mempool_free(pmb, phba->mbox_mem_pool); 6825 return rc; 6826 6827 mbx_fail_out: 6828 /* Free memory allocated for mailbox command */ 6829 mempool_free(pmb, phba->mbox_mem_pool); 6830 6831 mem_fail_out: 6832 /* free the irq already requested */ 6833 free_irq(phba->msix_entries[1].vector, phba); 6834 6835 irq_fail_out: 6836 /* free the irq already requested */ 6837 free_irq(phba->msix_entries[0].vector, phba); 6838 6839 msi_fail_out: 6840 /* Unconfigure MSI-X capability structure */ 6841 pci_disable_msix(phba->pcidev); 6842 return rc; 6843 } 6844 6845 /** 6846 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 6847 * @phba: pointer to lpfc hba data structure. 6848 * 6849 * This routine is invoked to release the MSI-X vectors and then disable the 6850 * MSI-X interrupt mode to device with SLI-3 interface spec. 6851 **/ 6852 static void 6853 lpfc_sli_disable_msix(struct lpfc_hba *phba) 6854 { 6855 int i; 6856 6857 /* Free up MSI-X multi-message vectors */ 6858 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6859 free_irq(phba->msix_entries[i].vector, phba); 6860 /* Disable MSI-X */ 6861 pci_disable_msix(phba->pcidev); 6862 6863 return; 6864 } 6865 6866 /** 6867 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 6868 * @phba: pointer to lpfc hba data structure. 6869 * 6870 * This routine is invoked to enable the MSI interrupt mode to device with 6871 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 6872 * enable the MSI vector. The device driver is responsible for calling the 6873 * request_irq() to register MSI vector with a interrupt the handler, which 6874 * is done in this function. 6875 * 6876 * Return codes 6877 * 0 - successful 6878 * other values - error 6879 */ 6880 static int 6881 lpfc_sli_enable_msi(struct lpfc_hba *phba) 6882 { 6883 int rc; 6884 6885 rc = pci_enable_msi(phba->pcidev); 6886 if (!rc) 6887 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6888 "0462 PCI enable MSI mode success.\n"); 6889 else { 6890 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6891 "0471 PCI enable MSI mode failed (%d)\n", rc); 6892 return rc; 6893 } 6894 6895 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6896 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6897 if (rc) { 6898 pci_disable_msi(phba->pcidev); 6899 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6900 "0478 MSI request_irq failed (%d)\n", rc); 6901 } 6902 return rc; 6903 } 6904 6905 /** 6906 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 6907 * @phba: pointer to lpfc hba data structure. 6908 * 6909 * This routine is invoked to disable the MSI interrupt mode to device with 6910 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 6911 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6912 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6913 * its vector. 6914 */ 6915 static void 6916 lpfc_sli_disable_msi(struct lpfc_hba *phba) 6917 { 6918 free_irq(phba->pcidev->irq, phba); 6919 pci_disable_msi(phba->pcidev); 6920 return; 6921 } 6922 6923 /** 6924 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 6925 * @phba: pointer to lpfc hba data structure. 6926 * 6927 * This routine is invoked to enable device interrupt and associate driver's 6928 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 6929 * spec. Depends on the interrupt mode configured to the driver, the driver 6930 * will try to fallback from the configured interrupt mode to an interrupt 6931 * mode which is supported by the platform, kernel, and device in the order 6932 * of: 6933 * MSI-X -> MSI -> IRQ. 6934 * 6935 * Return codes 6936 * 0 - successful 6937 * other values - error 6938 **/ 6939 static uint32_t 6940 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6941 { 6942 uint32_t intr_mode = LPFC_INTR_ERROR; 6943 int retval; 6944 6945 if (cfg_mode == 2) { 6946 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 6947 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 6948 if (!retval) { 6949 /* Now, try to enable MSI-X interrupt mode */ 6950 retval = lpfc_sli_enable_msix(phba); 6951 if (!retval) { 6952 /* Indicate initialization to MSI-X mode */ 6953 phba->intr_type = MSIX; 6954 intr_mode = 2; 6955 } 6956 } 6957 } 6958 6959 /* Fallback to MSI if MSI-X initialization failed */ 6960 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6961 retval = lpfc_sli_enable_msi(phba); 6962 if (!retval) { 6963 /* Indicate initialization to MSI mode */ 6964 phba->intr_type = MSI; 6965 intr_mode = 1; 6966 } 6967 } 6968 6969 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6970 if (phba->intr_type == NONE) { 6971 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6972 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6973 if (!retval) { 6974 /* Indicate initialization to INTx mode */ 6975 phba->intr_type = INTx; 6976 intr_mode = 0; 6977 } 6978 } 6979 return intr_mode; 6980 } 6981 6982 /** 6983 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 6984 * @phba: pointer to lpfc hba data structure. 6985 * 6986 * This routine is invoked to disable device interrupt and disassociate the 6987 * driver's interrupt handler(s) from interrupt vector(s) to device with 6988 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 6989 * release the interrupt vector(s) for the message signaled interrupt. 6990 **/ 6991 static void 6992 lpfc_sli_disable_intr(struct lpfc_hba *phba) 6993 { 6994 /* Disable the currently initialized interrupt mode */ 6995 if (phba->intr_type == MSIX) 6996 lpfc_sli_disable_msix(phba); 6997 else if (phba->intr_type == MSI) 6998 lpfc_sli_disable_msi(phba); 6999 else if (phba->intr_type == INTx) 7000 free_irq(phba->pcidev->irq, phba); 7001 7002 /* Reset interrupt management states */ 7003 phba->intr_type = NONE; 7004 phba->sli.slistat.sli_intr = 0; 7005 7006 return; 7007 } 7008 7009 /** 7010 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 7011 * @phba: pointer to lpfc hba data structure. 7012 * 7013 * This routine is invoked to enable the MSI-X interrupt vectors to device 7014 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 7015 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 7016 * enables either all or nothing, depending on the current availability of 7017 * PCI vector resources. The device driver is responsible for calling the 7018 * individual request_irq() to register each MSI-X vector with a interrupt 7019 * handler, which is done in this function. Note that later when device is 7020 * unloading, the driver should always call free_irq() on all MSI-X vectors 7021 * it has done request_irq() on before calling pci_disable_msix(). Failure 7022 * to do so results in a BUG_ON() and a device will be left with MSI-X 7023 * enabled and leaks its vectors. 7024 * 7025 * Return codes 7026 * 0 - successful 7027 * other values - error 7028 **/ 7029 static int 7030 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 7031 { 7032 int vectors, rc, index; 7033 7034 /* Set up MSI-X multi-message vectors */ 7035 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 7036 phba->sli4_hba.msix_entries[index].entry = index; 7037 7038 /* Configure MSI-X capability structure */ 7039 vectors = phba->sli4_hba.cfg_eqn; 7040 enable_msix_vectors: 7041 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 7042 vectors); 7043 if (rc > 1) { 7044 vectors = rc; 7045 goto enable_msix_vectors; 7046 } else if (rc) { 7047 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7048 "0484 PCI enable MSI-X failed (%d)\n", rc); 7049 goto msi_fail_out; 7050 } 7051 7052 /* Log MSI-X vector assignment */ 7053 for (index = 0; index < vectors; index++) 7054 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7055 "0489 MSI-X entry[%d]: vector=x%x " 7056 "message=%d\n", index, 7057 phba->sli4_hba.msix_entries[index].vector, 7058 phba->sli4_hba.msix_entries[index].entry); 7059 /* 7060 * Assign MSI-X vectors to interrupt handlers 7061 */ 7062 7063 /* The first vector must associated to slow-path handler for MQ */ 7064 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7065 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 7066 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7067 if (rc) { 7068 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7069 "0485 MSI-X slow-path request_irq failed " 7070 "(%d)\n", rc); 7071 goto msi_fail_out; 7072 } 7073 7074 /* The rest of the vector(s) are associated to fast-path handler(s) */ 7075 for (index = 1; index < vectors; index++) { 7076 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 7077 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 7078 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 7079 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 7080 LPFC_FP_DRIVER_HANDLER_NAME, 7081 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7082 if (rc) { 7083 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7084 "0486 MSI-X fast-path (%d) " 7085 "request_irq failed (%d)\n", index, rc); 7086 goto cfg_fail_out; 7087 } 7088 } 7089 phba->sli4_hba.msix_vec_nr = vectors; 7090 7091 return rc; 7092 7093 cfg_fail_out: 7094 /* free the irq already requested */ 7095 for (--index; index >= 1; index--) 7096 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 7097 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7098 7099 /* free the irq already requested */ 7100 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7101 7102 msi_fail_out: 7103 /* Unconfigure MSI-X capability structure */ 7104 pci_disable_msix(phba->pcidev); 7105 return rc; 7106 } 7107 7108 /** 7109 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 7110 * @phba: pointer to lpfc hba data structure. 7111 * 7112 * This routine is invoked to release the MSI-X vectors and then disable the 7113 * MSI-X interrupt mode to device with SLI-4 interface spec. 7114 **/ 7115 static void 7116 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 7117 { 7118 int index; 7119 7120 /* Free up MSI-X multi-message vectors */ 7121 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7122 7123 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++) 7124 free_irq(phba->sli4_hba.msix_entries[index].vector, 7125 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7126 7127 /* Disable MSI-X */ 7128 pci_disable_msix(phba->pcidev); 7129 7130 return; 7131 } 7132 7133 /** 7134 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 7135 * @phba: pointer to lpfc hba data structure. 7136 * 7137 * This routine is invoked to enable the MSI interrupt mode to device with 7138 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 7139 * to enable the MSI vector. The device driver is responsible for calling 7140 * the request_irq() to register MSI vector with a interrupt the handler, 7141 * which is done in this function. 7142 * 7143 * Return codes 7144 * 0 - successful 7145 * other values - error 7146 **/ 7147 static int 7148 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 7149 { 7150 int rc, index; 7151 7152 rc = pci_enable_msi(phba->pcidev); 7153 if (!rc) 7154 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7155 "0487 PCI enable MSI mode success.\n"); 7156 else { 7157 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7158 "0488 PCI enable MSI mode failed (%d)\n", rc); 7159 return rc; 7160 } 7161 7162 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7163 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7164 if (rc) { 7165 pci_disable_msi(phba->pcidev); 7166 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7167 "0490 MSI request_irq failed (%d)\n", rc); 7168 return rc; 7169 } 7170 7171 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 7172 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7173 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7174 } 7175 7176 return 0; 7177 } 7178 7179 /** 7180 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 7181 * @phba: pointer to lpfc hba data structure. 7182 * 7183 * This routine is invoked to disable the MSI interrupt mode to device with 7184 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 7185 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7186 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7187 * its vector. 7188 **/ 7189 static void 7190 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 7191 { 7192 free_irq(phba->pcidev->irq, phba); 7193 pci_disable_msi(phba->pcidev); 7194 return; 7195 } 7196 7197 /** 7198 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 7199 * @phba: pointer to lpfc hba data structure. 7200 * 7201 * This routine is invoked to enable device interrupt and associate driver's 7202 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 7203 * interface spec. Depends on the interrupt mode configured to the driver, 7204 * the driver will try to fallback from the configured interrupt mode to an 7205 * interrupt mode which is supported by the platform, kernel, and device in 7206 * the order of: 7207 * MSI-X -> MSI -> IRQ. 7208 * 7209 * Return codes 7210 * 0 - successful 7211 * other values - error 7212 **/ 7213 static uint32_t 7214 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7215 { 7216 uint32_t intr_mode = LPFC_INTR_ERROR; 7217 int retval, index; 7218 7219 if (cfg_mode == 2) { 7220 /* Preparation before conf_msi mbox cmd */ 7221 retval = 0; 7222 if (!retval) { 7223 /* Now, try to enable MSI-X interrupt mode */ 7224 retval = lpfc_sli4_enable_msix(phba); 7225 if (!retval) { 7226 /* Indicate initialization to MSI-X mode */ 7227 phba->intr_type = MSIX; 7228 intr_mode = 2; 7229 } 7230 } 7231 } 7232 7233 /* Fallback to MSI if MSI-X initialization failed */ 7234 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7235 retval = lpfc_sli4_enable_msi(phba); 7236 if (!retval) { 7237 /* Indicate initialization to MSI mode */ 7238 phba->intr_type = MSI; 7239 intr_mode = 1; 7240 } 7241 } 7242 7243 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7244 if (phba->intr_type == NONE) { 7245 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7246 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7247 if (!retval) { 7248 /* Indicate initialization to INTx mode */ 7249 phba->intr_type = INTx; 7250 intr_mode = 0; 7251 for (index = 0; index < phba->cfg_fcp_eq_count; 7252 index++) { 7253 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7254 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7255 } 7256 } 7257 } 7258 return intr_mode; 7259 } 7260 7261 /** 7262 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 7263 * @phba: pointer to lpfc hba data structure. 7264 * 7265 * This routine is invoked to disable device interrupt and disassociate 7266 * the driver's interrupt handler(s) from interrupt vector(s) to device 7267 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 7268 * will release the interrupt vector(s) for the message signaled interrupt. 7269 **/ 7270 static void 7271 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 7272 { 7273 /* Disable the currently initialized interrupt mode */ 7274 if (phba->intr_type == MSIX) 7275 lpfc_sli4_disable_msix(phba); 7276 else if (phba->intr_type == MSI) 7277 lpfc_sli4_disable_msi(phba); 7278 else if (phba->intr_type == INTx) 7279 free_irq(phba->pcidev->irq, phba); 7280 7281 /* Reset interrupt management states */ 7282 phba->intr_type = NONE; 7283 phba->sli.slistat.sli_intr = 0; 7284 7285 return; 7286 } 7287 7288 /** 7289 * lpfc_unset_hba - Unset SLI3 hba device initialization 7290 * @phba: pointer to lpfc hba data structure. 7291 * 7292 * This routine is invoked to unset the HBA device initialization steps to 7293 * a device with SLI-3 interface spec. 7294 **/ 7295 static void 7296 lpfc_unset_hba(struct lpfc_hba *phba) 7297 { 7298 struct lpfc_vport *vport = phba->pport; 7299 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7300 7301 spin_lock_irq(shost->host_lock); 7302 vport->load_flag |= FC_UNLOADING; 7303 spin_unlock_irq(shost->host_lock); 7304 7305 lpfc_stop_hba_timers(phba); 7306 7307 phba->pport->work_port_events = 0; 7308 7309 lpfc_sli_hba_down(phba); 7310 7311 lpfc_sli_brdrestart(phba); 7312 7313 lpfc_sli_disable_intr(phba); 7314 7315 return; 7316 } 7317 7318 /** 7319 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 7320 * @phba: pointer to lpfc hba data structure. 7321 * 7322 * This routine is invoked to unset the HBA device initialization steps to 7323 * a device with SLI-4 interface spec. 7324 **/ 7325 static void 7326 lpfc_sli4_unset_hba(struct lpfc_hba *phba) 7327 { 7328 struct lpfc_vport *vport = phba->pport; 7329 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7330 7331 spin_lock_irq(shost->host_lock); 7332 vport->load_flag |= FC_UNLOADING; 7333 spin_unlock_irq(shost->host_lock); 7334 7335 phba->pport->work_port_events = 0; 7336 7337 lpfc_sli4_hba_down(phba); 7338 7339 lpfc_sli4_disable_intr(phba); 7340 7341 return; 7342 } 7343 7344 /** 7345 * lpfc_sli4_hba_unset - Unset the fcoe hba 7346 * @phba: Pointer to HBA context object. 7347 * 7348 * This function is called in the SLI4 code path to reset the HBA's FCoE 7349 * function. The caller is not required to hold any lock. This routine 7350 * issues PCI function reset mailbox command to reset the FCoE function. 7351 * At the end of the function, it calls lpfc_hba_down_post function to 7352 * free any pending commands. 7353 **/ 7354 static void 7355 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 7356 { 7357 int wait_cnt = 0; 7358 LPFC_MBOXQ_t *mboxq; 7359 7360 lpfc_stop_hba_timers(phba); 7361 phba->sli4_hba.intr_enable = 0; 7362 7363 /* 7364 * Gracefully wait out the potential current outstanding asynchronous 7365 * mailbox command. 7366 */ 7367 7368 /* First, block any pending async mailbox command from posted */ 7369 spin_lock_irq(&phba->hbalock); 7370 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 7371 spin_unlock_irq(&phba->hbalock); 7372 /* Now, trying to wait it out if we can */ 7373 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7374 msleep(10); 7375 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 7376 break; 7377 } 7378 /* Forcefully release the outstanding mailbox command if timed out */ 7379 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7380 spin_lock_irq(&phba->hbalock); 7381 mboxq = phba->sli.mbox_active; 7382 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 7383 __lpfc_mbox_cmpl_put(phba, mboxq); 7384 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 7385 phba->sli.mbox_active = NULL; 7386 spin_unlock_irq(&phba->hbalock); 7387 } 7388 7389 /* Tear down the queues in the HBA */ 7390 lpfc_sli4_queue_unset(phba); 7391 7392 /* Disable PCI subsystem interrupt */ 7393 lpfc_sli4_disable_intr(phba); 7394 7395 /* Stop kthread signal shall trigger work_done one more time */ 7396 kthread_stop(phba->worker_thread); 7397 7398 /* Stop the SLI4 device port */ 7399 phba->pport->work_port_events = 0; 7400 } 7401 7402 /** 7403 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 7404 * @phba: Pointer to HBA context object. 7405 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 7406 * 7407 * This function is called in the SLI4 code path to read the port's 7408 * sli4 capabilities. 7409 * 7410 * This function may be be called from any context that can block-wait 7411 * for the completion. The expectation is that this routine is called 7412 * typically from probe_one or from the online routine. 7413 **/ 7414 int 7415 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 7416 { 7417 int rc; 7418 struct lpfc_mqe *mqe; 7419 struct lpfc_pc_sli4_params *sli4_params; 7420 uint32_t mbox_tmo; 7421 7422 rc = 0; 7423 mqe = &mboxq->u.mqe; 7424 7425 /* Read the port's SLI4 Parameters port capabilities */ 7426 lpfc_sli4_params(mboxq); 7427 if (!phba->sli4_hba.intr_enable) 7428 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7429 else { 7430 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES); 7431 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7432 } 7433 7434 if (unlikely(rc)) 7435 return 1; 7436 7437 sli4_params = &phba->sli4_hba.pc_sli4_params; 7438 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 7439 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 7440 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 7441 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 7442 &mqe->un.sli4_params); 7443 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 7444 &mqe->un.sli4_params); 7445 sli4_params->proto_types = mqe->un.sli4_params.word3; 7446 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 7447 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 7448 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 7449 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 7450 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 7451 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 7452 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 7453 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 7454 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 7455 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 7456 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 7457 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 7458 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 7459 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 7460 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 7461 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 7462 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 7463 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 7464 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 7465 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 7466 return rc; 7467 } 7468 7469 /** 7470 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 7471 * @pdev: pointer to PCI device 7472 * @pid: pointer to PCI device identifier 7473 * 7474 * This routine is to be called to attach a device with SLI-3 interface spec 7475 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 7476 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 7477 * information of the device and driver to see if the driver state that it can 7478 * support this kind of device. If the match is successful, the driver core 7479 * invokes this routine. If this routine determines it can claim the HBA, it 7480 * does all the initialization that it needs to do to handle the HBA properly. 7481 * 7482 * Return code 7483 * 0 - driver can claim the device 7484 * negative value - driver can not claim the device 7485 **/ 7486 static int __devinit 7487 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 7488 { 7489 struct lpfc_hba *phba; 7490 struct lpfc_vport *vport = NULL; 7491 struct Scsi_Host *shost = NULL; 7492 int error; 7493 uint32_t cfg_mode, intr_mode; 7494 7495 /* Allocate memory for HBA structure */ 7496 phba = lpfc_hba_alloc(pdev); 7497 if (!phba) 7498 return -ENOMEM; 7499 7500 /* Perform generic PCI device enabling operation */ 7501 error = lpfc_enable_pci_dev(phba); 7502 if (error) { 7503 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7504 "1401 Failed to enable pci device.\n"); 7505 goto out_free_phba; 7506 } 7507 7508 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 7509 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 7510 if (error) 7511 goto out_disable_pci_dev; 7512 7513 /* Set up SLI-3 specific device PCI memory space */ 7514 error = lpfc_sli_pci_mem_setup(phba); 7515 if (error) { 7516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7517 "1402 Failed to set up pci memory space.\n"); 7518 goto out_disable_pci_dev; 7519 } 7520 7521 /* Set up phase-1 common device driver resources */ 7522 error = lpfc_setup_driver_resource_phase1(phba); 7523 if (error) { 7524 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7525 "1403 Failed to set up driver resource.\n"); 7526 goto out_unset_pci_mem_s3; 7527 } 7528 7529 /* Set up SLI-3 specific device driver resources */ 7530 error = lpfc_sli_driver_resource_setup(phba); 7531 if (error) { 7532 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7533 "1404 Failed to set up driver resource.\n"); 7534 goto out_unset_pci_mem_s3; 7535 } 7536 7537 /* Initialize and populate the iocb list per host */ 7538 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 7539 if (error) { 7540 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7541 "1405 Failed to initialize iocb list.\n"); 7542 goto out_unset_driver_resource_s3; 7543 } 7544 7545 /* Set up common device driver resources */ 7546 error = lpfc_setup_driver_resource_phase2(phba); 7547 if (error) { 7548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7549 "1406 Failed to set up driver resource.\n"); 7550 goto out_free_iocb_list; 7551 } 7552 7553 /* Create SCSI host to the physical port */ 7554 error = lpfc_create_shost(phba); 7555 if (error) { 7556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7557 "1407 Failed to create scsi host.\n"); 7558 goto out_unset_driver_resource; 7559 } 7560 7561 /* Configure sysfs attributes */ 7562 vport = phba->pport; 7563 error = lpfc_alloc_sysfs_attr(vport); 7564 if (error) { 7565 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7566 "1476 Failed to allocate sysfs attr\n"); 7567 goto out_destroy_shost; 7568 } 7569 7570 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 7571 /* Now, trying to enable interrupt and bring up the device */ 7572 cfg_mode = phba->cfg_use_msi; 7573 while (true) { 7574 /* Put device to a known state before enabling interrupt */ 7575 lpfc_stop_port(phba); 7576 /* Configure and enable interrupt */ 7577 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 7578 if (intr_mode == LPFC_INTR_ERROR) { 7579 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7580 "0431 Failed to enable interrupt.\n"); 7581 error = -ENODEV; 7582 goto out_free_sysfs_attr; 7583 } 7584 /* SLI-3 HBA setup */ 7585 if (lpfc_sli_hba_setup(phba)) { 7586 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7587 "1477 Failed to set up hba\n"); 7588 error = -ENODEV; 7589 goto out_remove_device; 7590 } 7591 7592 /* Wait 50ms for the interrupts of previous mailbox commands */ 7593 msleep(50); 7594 /* Check active interrupts on message signaled interrupts */ 7595 if (intr_mode == 0 || 7596 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 7597 /* Log the current active interrupt mode */ 7598 phba->intr_mode = intr_mode; 7599 lpfc_log_intr_mode(phba, intr_mode); 7600 break; 7601 } else { 7602 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7603 "0447 Configure interrupt mode (%d) " 7604 "failed active interrupt test.\n", 7605 intr_mode); 7606 /* Disable the current interrupt mode */ 7607 lpfc_sli_disable_intr(phba); 7608 /* Try next level of interrupt mode */ 7609 cfg_mode = --intr_mode; 7610 } 7611 } 7612 7613 /* Perform post initialization setup */ 7614 lpfc_post_init_setup(phba); 7615 7616 /* Check if there are static vports to be created. */ 7617 lpfc_create_static_vport(phba); 7618 7619 return 0; 7620 7621 out_remove_device: 7622 lpfc_unset_hba(phba); 7623 out_free_sysfs_attr: 7624 lpfc_free_sysfs_attr(vport); 7625 out_destroy_shost: 7626 lpfc_destroy_shost(phba); 7627 out_unset_driver_resource: 7628 lpfc_unset_driver_resource_phase2(phba); 7629 out_free_iocb_list: 7630 lpfc_free_iocb_list(phba); 7631 out_unset_driver_resource_s3: 7632 lpfc_sli_driver_resource_unset(phba); 7633 out_unset_pci_mem_s3: 7634 lpfc_sli_pci_mem_unset(phba); 7635 out_disable_pci_dev: 7636 lpfc_disable_pci_dev(phba); 7637 if (shost) 7638 scsi_host_put(shost); 7639 out_free_phba: 7640 lpfc_hba_free(phba); 7641 return error; 7642 } 7643 7644 /** 7645 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 7646 * @pdev: pointer to PCI device 7647 * 7648 * This routine is to be called to disattach a device with SLI-3 interface 7649 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 7650 * removed from PCI bus, it performs all the necessary cleanup for the HBA 7651 * device to be removed from the PCI subsystem properly. 7652 **/ 7653 static void __devexit 7654 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 7655 { 7656 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7657 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7658 struct lpfc_vport **vports; 7659 struct lpfc_hba *phba = vport->phba; 7660 int i; 7661 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 7662 7663 spin_lock_irq(&phba->hbalock); 7664 vport->load_flag |= FC_UNLOADING; 7665 spin_unlock_irq(&phba->hbalock); 7666 7667 lpfc_free_sysfs_attr(vport); 7668 7669 /* Release all the vports against this physical port */ 7670 vports = lpfc_create_vport_work_array(phba); 7671 if (vports != NULL) 7672 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 7673 fc_vport_terminate(vports[i]->fc_vport); 7674 lpfc_destroy_vport_work_array(phba, vports); 7675 7676 /* Remove FC host and then SCSI host with the physical port */ 7677 fc_remove_host(shost); 7678 scsi_remove_host(shost); 7679 lpfc_cleanup(vport); 7680 7681 /* 7682 * Bring down the SLI Layer. This step disable all interrupts, 7683 * clears the rings, discards all mailbox commands, and resets 7684 * the HBA. 7685 */ 7686 7687 /* HBA interrupt will be diabled after this call */ 7688 lpfc_sli_hba_down(phba); 7689 /* Stop kthread signal shall trigger work_done one more time */ 7690 kthread_stop(phba->worker_thread); 7691 /* Final cleanup of txcmplq and reset the HBA */ 7692 lpfc_sli_brdrestart(phba); 7693 7694 lpfc_stop_hba_timers(phba); 7695 spin_lock_irq(&phba->hbalock); 7696 list_del_init(&vport->listentry); 7697 spin_unlock_irq(&phba->hbalock); 7698 7699 lpfc_debugfs_terminate(vport); 7700 7701 /* Disable interrupt */ 7702 lpfc_sli_disable_intr(phba); 7703 7704 pci_set_drvdata(pdev, NULL); 7705 scsi_host_put(shost); 7706 7707 /* 7708 * Call scsi_free before mem_free since scsi bufs are released to their 7709 * corresponding pools here. 7710 */ 7711 lpfc_scsi_free(phba); 7712 lpfc_mem_free_all(phba); 7713 7714 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7715 phba->hbqslimp.virt, phba->hbqslimp.phys); 7716 7717 /* Free resources associated with SLI2 interface */ 7718 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7719 phba->slim2p.virt, phba->slim2p.phys); 7720 7721 /* unmap adapter SLIM and Control Registers */ 7722 iounmap(phba->ctrl_regs_memmap_p); 7723 iounmap(phba->slim_memmap_p); 7724 7725 lpfc_hba_free(phba); 7726 7727 pci_release_selected_regions(pdev, bars); 7728 pci_disable_device(pdev); 7729 } 7730 7731 /** 7732 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 7733 * @pdev: pointer to PCI device 7734 * @msg: power management message 7735 * 7736 * This routine is to be called from the kernel's PCI subsystem to support 7737 * system Power Management (PM) to device with SLI-3 interface spec. When 7738 * PM invokes this method, it quiesces the device by stopping the driver's 7739 * worker thread for the device, turning off device's interrupt and DMA, 7740 * and bring the device offline. Note that as the driver implements the 7741 * minimum PM requirements to a power-aware driver's PM support for the 7742 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 7743 * to the suspend() method call will be treated as SUSPEND and the driver will 7744 * fully reinitialize its device during resume() method call, the driver will 7745 * set device to PCI_D3hot state in PCI config space instead of setting it 7746 * according to the @msg provided by the PM. 7747 * 7748 * Return code 7749 * 0 - driver suspended the device 7750 * Error otherwise 7751 **/ 7752 static int 7753 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 7754 { 7755 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7756 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7757 7758 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7759 "0473 PCI device Power Management suspend.\n"); 7760 7761 /* Bring down the device */ 7762 lpfc_offline_prep(phba); 7763 lpfc_offline(phba); 7764 kthread_stop(phba->worker_thread); 7765 7766 /* Disable interrupt from device */ 7767 lpfc_sli_disable_intr(phba); 7768 7769 /* Save device state to PCI config space */ 7770 pci_save_state(pdev); 7771 pci_set_power_state(pdev, PCI_D3hot); 7772 7773 return 0; 7774 } 7775 7776 /** 7777 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 7778 * @pdev: pointer to PCI device 7779 * 7780 * This routine is to be called from the kernel's PCI subsystem to support 7781 * system Power Management (PM) to device with SLI-3 interface spec. When PM 7782 * invokes this method, it restores the device's PCI config space state and 7783 * fully reinitializes the device and brings it online. Note that as the 7784 * driver implements the minimum PM requirements to a power-aware driver's 7785 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 7786 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 7787 * driver will fully reinitialize its device during resume() method call, 7788 * the device will be set to PCI_D0 directly in PCI config space before 7789 * restoring the state. 7790 * 7791 * Return code 7792 * 0 - driver suspended the device 7793 * Error otherwise 7794 **/ 7795 static int 7796 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 7797 { 7798 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7799 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7800 uint32_t intr_mode; 7801 int error; 7802 7803 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7804 "0452 PCI device Power Management resume.\n"); 7805 7806 /* Restore device state from PCI config space */ 7807 pci_set_power_state(pdev, PCI_D0); 7808 pci_restore_state(pdev); 7809 7810 /* 7811 * As the new kernel behavior of pci_restore_state() API call clears 7812 * device saved_state flag, need to save the restored state again. 7813 */ 7814 pci_save_state(pdev); 7815 7816 if (pdev->is_busmaster) 7817 pci_set_master(pdev); 7818 7819 /* Startup the kernel thread for this host adapter. */ 7820 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7821 "lpfc_worker_%d", phba->brd_no); 7822 if (IS_ERR(phba->worker_thread)) { 7823 error = PTR_ERR(phba->worker_thread); 7824 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7825 "0434 PM resume failed to start worker " 7826 "thread: error=x%x.\n", error); 7827 return error; 7828 } 7829 7830 /* Configure and enable interrupt */ 7831 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7832 if (intr_mode == LPFC_INTR_ERROR) { 7833 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7834 "0430 PM resume Failed to enable interrupt\n"); 7835 return -EIO; 7836 } else 7837 phba->intr_mode = intr_mode; 7838 7839 /* Restart HBA and bring it online */ 7840 lpfc_sli_brdrestart(phba); 7841 lpfc_online(phba); 7842 7843 /* Log the current active interrupt mode */ 7844 lpfc_log_intr_mode(phba, phba->intr_mode); 7845 7846 return 0; 7847 } 7848 7849 /** 7850 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 7851 * @phba: pointer to lpfc hba data structure. 7852 * 7853 * This routine is called to prepare the SLI3 device for PCI slot recover. It 7854 * aborts all the outstanding SCSI I/Os to the pci device. 7855 **/ 7856 static void 7857 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 7858 { 7859 struct lpfc_sli *psli = &phba->sli; 7860 struct lpfc_sli_ring *pring; 7861 7862 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7863 "2723 PCI channel I/O abort preparing for recovery\n"); 7864 7865 /* 7866 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 7867 * and let the SCSI mid-layer to retry them to recover. 7868 */ 7869 pring = &psli->ring[psli->fcp_ring]; 7870 lpfc_sli_abort_iocb_ring(phba, pring); 7871 } 7872 7873 /** 7874 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 7875 * @phba: pointer to lpfc hba data structure. 7876 * 7877 * This routine is called to prepare the SLI3 device for PCI slot reset. It 7878 * disables the device interrupt and pci device, and aborts the internal FCP 7879 * pending I/Os. 7880 **/ 7881 static void 7882 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 7883 { 7884 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7885 "2710 PCI channel disable preparing for reset\n"); 7886 7887 /* Block any management I/Os to the device */ 7888 lpfc_block_mgmt_io(phba); 7889 7890 /* Block all SCSI devices' I/Os on the host */ 7891 lpfc_scsi_dev_block(phba); 7892 7893 /* stop all timers */ 7894 lpfc_stop_hba_timers(phba); 7895 7896 /* Disable interrupt and pci device */ 7897 lpfc_sli_disable_intr(phba); 7898 pci_disable_device(phba->pcidev); 7899 7900 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 7901 lpfc_sli_flush_fcp_rings(phba); 7902 } 7903 7904 /** 7905 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 7906 * @phba: pointer to lpfc hba data structure. 7907 * 7908 * This routine is called to prepare the SLI3 device for PCI slot permanently 7909 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 7910 * pending I/Os. 7911 **/ 7912 static void 7913 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 7914 { 7915 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7916 "2711 PCI channel permanent disable for failure\n"); 7917 /* Block all SCSI devices' I/Os on the host */ 7918 lpfc_scsi_dev_block(phba); 7919 7920 /* stop all timers */ 7921 lpfc_stop_hba_timers(phba); 7922 7923 /* Clean up all driver's outstanding SCSI I/Os */ 7924 lpfc_sli_flush_fcp_rings(phba); 7925 } 7926 7927 /** 7928 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 7929 * @pdev: pointer to PCI device. 7930 * @state: the current PCI connection state. 7931 * 7932 * This routine is called from the PCI subsystem for I/O error handling to 7933 * device with SLI-3 interface spec. This function is called by the PCI 7934 * subsystem after a PCI bus error affecting this device has been detected. 7935 * When this function is invoked, it will need to stop all the I/Os and 7936 * interrupt(s) to the device. Once that is done, it will return 7937 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 7938 * as desired. 7939 * 7940 * Return codes 7941 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 7942 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7943 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7944 **/ 7945 static pci_ers_result_t 7946 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 7947 { 7948 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7949 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7950 7951 switch (state) { 7952 case pci_channel_io_normal: 7953 /* Non-fatal error, prepare for recovery */ 7954 lpfc_sli_prep_dev_for_recover(phba); 7955 return PCI_ERS_RESULT_CAN_RECOVER; 7956 case pci_channel_io_frozen: 7957 /* Fatal error, prepare for slot reset */ 7958 lpfc_sli_prep_dev_for_reset(phba); 7959 return PCI_ERS_RESULT_NEED_RESET; 7960 case pci_channel_io_perm_failure: 7961 /* Permanent failure, prepare for device down */ 7962 lpfc_sli_prep_dev_for_perm_failure(phba); 7963 return PCI_ERS_RESULT_DISCONNECT; 7964 default: 7965 /* Unknown state, prepare and request slot reset */ 7966 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7967 "0472 Unknown PCI error state: x%x\n", state); 7968 lpfc_sli_prep_dev_for_reset(phba); 7969 return PCI_ERS_RESULT_NEED_RESET; 7970 } 7971 } 7972 7973 /** 7974 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 7975 * @pdev: pointer to PCI device. 7976 * 7977 * This routine is called from the PCI subsystem for error handling to 7978 * device with SLI-3 interface spec. This is called after PCI bus has been 7979 * reset to restart the PCI card from scratch, as if from a cold-boot. 7980 * During the PCI subsystem error recovery, after driver returns 7981 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 7982 * recovery and then call this routine before calling the .resume method 7983 * to recover the device. This function will initialize the HBA device, 7984 * enable the interrupt, but it will just put the HBA to offline state 7985 * without passing any I/O traffic. 7986 * 7987 * Return codes 7988 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7989 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7990 */ 7991 static pci_ers_result_t 7992 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 7993 { 7994 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7995 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7996 struct lpfc_sli *psli = &phba->sli; 7997 uint32_t intr_mode; 7998 7999 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 8000 if (pci_enable_device_mem(pdev)) { 8001 printk(KERN_ERR "lpfc: Cannot re-enable " 8002 "PCI device after reset.\n"); 8003 return PCI_ERS_RESULT_DISCONNECT; 8004 } 8005 8006 pci_restore_state(pdev); 8007 8008 /* 8009 * As the new kernel behavior of pci_restore_state() API call clears 8010 * device saved_state flag, need to save the restored state again. 8011 */ 8012 pci_save_state(pdev); 8013 8014 if (pdev->is_busmaster) 8015 pci_set_master(pdev); 8016 8017 spin_lock_irq(&phba->hbalock); 8018 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 8019 spin_unlock_irq(&phba->hbalock); 8020 8021 /* Configure and enable interrupt */ 8022 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8023 if (intr_mode == LPFC_INTR_ERROR) { 8024 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8025 "0427 Cannot re-enable interrupt after " 8026 "slot reset.\n"); 8027 return PCI_ERS_RESULT_DISCONNECT; 8028 } else 8029 phba->intr_mode = intr_mode; 8030 8031 /* Take device offline, it will perform cleanup */ 8032 lpfc_offline_prep(phba); 8033 lpfc_offline(phba); 8034 lpfc_sli_brdrestart(phba); 8035 8036 /* Log the current active interrupt mode */ 8037 lpfc_log_intr_mode(phba, phba->intr_mode); 8038 8039 return PCI_ERS_RESULT_RECOVERED; 8040 } 8041 8042 /** 8043 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 8044 * @pdev: pointer to PCI device 8045 * 8046 * This routine is called from the PCI subsystem for error handling to device 8047 * with SLI-3 interface spec. It is called when kernel error recovery tells 8048 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8049 * error recovery. After this call, traffic can start to flow from this device 8050 * again. 8051 */ 8052 static void 8053 lpfc_io_resume_s3(struct pci_dev *pdev) 8054 { 8055 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8056 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8057 8058 /* Bring device online, it will be no-op for non-fatal error resume */ 8059 lpfc_online(phba); 8060 8061 /* Clean up Advanced Error Reporting (AER) if needed */ 8062 if (phba->hba_flag & HBA_AER_ENABLED) 8063 pci_cleanup_aer_uncorrect_error_status(pdev); 8064 } 8065 8066 /** 8067 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 8068 * @phba: pointer to lpfc hba data structure. 8069 * 8070 * returns the number of ELS/CT IOCBs to reserve 8071 **/ 8072 int 8073 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 8074 { 8075 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 8076 8077 if (phba->sli_rev == LPFC_SLI_REV4) { 8078 if (max_xri <= 100) 8079 return 10; 8080 else if (max_xri <= 256) 8081 return 25; 8082 else if (max_xri <= 512) 8083 return 50; 8084 else if (max_xri <= 1024) 8085 return 100; 8086 else 8087 return 150; 8088 } else 8089 return 0; 8090 } 8091 8092 /** 8093 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 8094 * @pdev: pointer to PCI device 8095 * @pid: pointer to PCI device identifier 8096 * 8097 * This routine is called from the kernel's PCI subsystem to device with 8098 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8099 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8100 * information of the device and driver to see if the driver state that it 8101 * can support this kind of device. If the match is successful, the driver 8102 * core invokes this routine. If this routine determines it can claim the HBA, 8103 * it does all the initialization that it needs to do to handle the HBA 8104 * properly. 8105 * 8106 * Return code 8107 * 0 - driver can claim the device 8108 * negative value - driver can not claim the device 8109 **/ 8110 static int __devinit 8111 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 8112 { 8113 struct lpfc_hba *phba; 8114 struct lpfc_vport *vport = NULL; 8115 struct Scsi_Host *shost = NULL; 8116 int error; 8117 uint32_t cfg_mode, intr_mode; 8118 int mcnt; 8119 8120 /* Allocate memory for HBA structure */ 8121 phba = lpfc_hba_alloc(pdev); 8122 if (!phba) 8123 return -ENOMEM; 8124 8125 /* Perform generic PCI device enabling operation */ 8126 error = lpfc_enable_pci_dev(phba); 8127 if (error) { 8128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8129 "1409 Failed to enable pci device.\n"); 8130 goto out_free_phba; 8131 } 8132 8133 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 8134 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 8135 if (error) 8136 goto out_disable_pci_dev; 8137 8138 /* Set up SLI-4 specific device PCI memory space */ 8139 error = lpfc_sli4_pci_mem_setup(phba); 8140 if (error) { 8141 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8142 "1410 Failed to set up pci memory space.\n"); 8143 goto out_disable_pci_dev; 8144 } 8145 8146 /* Set up phase-1 common device driver resources */ 8147 error = lpfc_setup_driver_resource_phase1(phba); 8148 if (error) { 8149 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8150 "1411 Failed to set up driver resource.\n"); 8151 goto out_unset_pci_mem_s4; 8152 } 8153 8154 /* Set up SLI-4 Specific device driver resources */ 8155 error = lpfc_sli4_driver_resource_setup(phba); 8156 if (error) { 8157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8158 "1412 Failed to set up driver resource.\n"); 8159 goto out_unset_pci_mem_s4; 8160 } 8161 8162 /* Initialize and populate the iocb list per host */ 8163 8164 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8165 "2821 initialize iocb list %d.\n", 8166 phba->cfg_iocb_cnt*1024); 8167 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 8168 8169 if (error) { 8170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8171 "1413 Failed to initialize iocb list.\n"); 8172 goto out_unset_driver_resource_s4; 8173 } 8174 8175 /* Set up common device driver resources */ 8176 error = lpfc_setup_driver_resource_phase2(phba); 8177 if (error) { 8178 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8179 "1414 Failed to set up driver resource.\n"); 8180 goto out_free_iocb_list; 8181 } 8182 8183 /* Create SCSI host to the physical port */ 8184 error = lpfc_create_shost(phba); 8185 if (error) { 8186 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8187 "1415 Failed to create scsi host.\n"); 8188 goto out_unset_driver_resource; 8189 } 8190 8191 /* Configure sysfs attributes */ 8192 vport = phba->pport; 8193 error = lpfc_alloc_sysfs_attr(vport); 8194 if (error) { 8195 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8196 "1416 Failed to allocate sysfs attr\n"); 8197 goto out_destroy_shost; 8198 } 8199 8200 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8201 /* Now, trying to enable interrupt and bring up the device */ 8202 cfg_mode = phba->cfg_use_msi; 8203 while (true) { 8204 /* Put device to a known state before enabling interrupt */ 8205 lpfc_stop_port(phba); 8206 /* Configure and enable interrupt */ 8207 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 8208 if (intr_mode == LPFC_INTR_ERROR) { 8209 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8210 "0426 Failed to enable interrupt.\n"); 8211 error = -ENODEV; 8212 goto out_free_sysfs_attr; 8213 } 8214 /* Default to single FCP EQ for non-MSI-X */ 8215 if (phba->intr_type != MSIX) 8216 phba->cfg_fcp_eq_count = 1; 8217 else if (phba->sli4_hba.msix_vec_nr < phba->cfg_fcp_eq_count) 8218 phba->cfg_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1; 8219 /* Set up SLI-4 HBA */ 8220 if (lpfc_sli4_hba_setup(phba)) { 8221 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8222 "1421 Failed to set up hba\n"); 8223 error = -ENODEV; 8224 goto out_disable_intr; 8225 } 8226 8227 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 8228 if (intr_mode != 0) 8229 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 8230 LPFC_ACT_INTR_CNT); 8231 8232 /* Check active interrupts received only for MSI/MSI-X */ 8233 if (intr_mode == 0 || 8234 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 8235 /* Log the current active interrupt mode */ 8236 phba->intr_mode = intr_mode; 8237 lpfc_log_intr_mode(phba, intr_mode); 8238 break; 8239 } 8240 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8241 "0451 Configure interrupt mode (%d) " 8242 "failed active interrupt test.\n", 8243 intr_mode); 8244 /* Unset the preivous SLI-4 HBA setup */ 8245 lpfc_sli4_unset_hba(phba); 8246 /* Try next level of interrupt mode */ 8247 cfg_mode = --intr_mode; 8248 } 8249 8250 /* Perform post initialization setup */ 8251 lpfc_post_init_setup(phba); 8252 8253 /* Check if there are static vports to be created. */ 8254 lpfc_create_static_vport(phba); 8255 8256 return 0; 8257 8258 out_disable_intr: 8259 lpfc_sli4_disable_intr(phba); 8260 out_free_sysfs_attr: 8261 lpfc_free_sysfs_attr(vport); 8262 out_destroy_shost: 8263 lpfc_destroy_shost(phba); 8264 out_unset_driver_resource: 8265 lpfc_unset_driver_resource_phase2(phba); 8266 out_free_iocb_list: 8267 lpfc_free_iocb_list(phba); 8268 out_unset_driver_resource_s4: 8269 lpfc_sli4_driver_resource_unset(phba); 8270 out_unset_pci_mem_s4: 8271 lpfc_sli4_pci_mem_unset(phba); 8272 out_disable_pci_dev: 8273 lpfc_disable_pci_dev(phba); 8274 if (shost) 8275 scsi_host_put(shost); 8276 out_free_phba: 8277 lpfc_hba_free(phba); 8278 return error; 8279 } 8280 8281 /** 8282 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 8283 * @pdev: pointer to PCI device 8284 * 8285 * This routine is called from the kernel's PCI subsystem to device with 8286 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8287 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8288 * device to be removed from the PCI subsystem properly. 8289 **/ 8290 static void __devexit 8291 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 8292 { 8293 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8294 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8295 struct lpfc_vport **vports; 8296 struct lpfc_hba *phba = vport->phba; 8297 int i; 8298 8299 /* Mark the device unloading flag */ 8300 spin_lock_irq(&phba->hbalock); 8301 vport->load_flag |= FC_UNLOADING; 8302 spin_unlock_irq(&phba->hbalock); 8303 8304 /* Free the HBA sysfs attributes */ 8305 lpfc_free_sysfs_attr(vport); 8306 8307 /* Release all the vports against this physical port */ 8308 vports = lpfc_create_vport_work_array(phba); 8309 if (vports != NULL) 8310 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 8311 fc_vport_terminate(vports[i]->fc_vport); 8312 lpfc_destroy_vport_work_array(phba, vports); 8313 8314 /* Remove FC host and then SCSI host with the physical port */ 8315 fc_remove_host(shost); 8316 scsi_remove_host(shost); 8317 8318 /* Perform cleanup on the physical port */ 8319 lpfc_cleanup(vport); 8320 8321 /* 8322 * Bring down the SLI Layer. This step disables all interrupts, 8323 * clears the rings, discards all mailbox commands, and resets 8324 * the HBA FCoE function. 8325 */ 8326 lpfc_debugfs_terminate(vport); 8327 lpfc_sli4_hba_unset(phba); 8328 8329 spin_lock_irq(&phba->hbalock); 8330 list_del_init(&vport->listentry); 8331 spin_unlock_irq(&phba->hbalock); 8332 8333 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi 8334 * buffers are released to their corresponding pools here. 8335 */ 8336 lpfc_scsi_free(phba); 8337 lpfc_sli4_driver_resource_unset(phba); 8338 8339 /* Unmap adapter Control and Doorbell registers */ 8340 lpfc_sli4_pci_mem_unset(phba); 8341 8342 /* Release PCI resources and disable device's PCI function */ 8343 scsi_host_put(shost); 8344 lpfc_disable_pci_dev(phba); 8345 8346 /* Finally, free the driver's device data structure */ 8347 lpfc_hba_free(phba); 8348 8349 return; 8350 } 8351 8352 /** 8353 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 8354 * @pdev: pointer to PCI device 8355 * @msg: power management message 8356 * 8357 * This routine is called from the kernel's PCI subsystem to support system 8358 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 8359 * this method, it quiesces the device by stopping the driver's worker 8360 * thread for the device, turning off device's interrupt and DMA, and bring 8361 * the device offline. Note that as the driver implements the minimum PM 8362 * requirements to a power-aware driver's PM support for suspend/resume -- all 8363 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 8364 * method call will be treated as SUSPEND and the driver will fully 8365 * reinitialize its device during resume() method call, the driver will set 8366 * device to PCI_D3hot state in PCI config space instead of setting it 8367 * according to the @msg provided by the PM. 8368 * 8369 * Return code 8370 * 0 - driver suspended the device 8371 * Error otherwise 8372 **/ 8373 static int 8374 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 8375 { 8376 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8377 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8378 8379 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8380 "2843 PCI device Power Management suspend.\n"); 8381 8382 /* Bring down the device */ 8383 lpfc_offline_prep(phba); 8384 lpfc_offline(phba); 8385 kthread_stop(phba->worker_thread); 8386 8387 /* Disable interrupt from device */ 8388 lpfc_sli4_disable_intr(phba); 8389 8390 /* Save device state to PCI config space */ 8391 pci_save_state(pdev); 8392 pci_set_power_state(pdev, PCI_D3hot); 8393 8394 return 0; 8395 } 8396 8397 /** 8398 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 8399 * @pdev: pointer to PCI device 8400 * 8401 * This routine is called from the kernel's PCI subsystem to support system 8402 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 8403 * this method, it restores the device's PCI config space state and fully 8404 * reinitializes the device and brings it online. Note that as the driver 8405 * implements the minimum PM requirements to a power-aware driver's PM for 8406 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8407 * to the suspend() method call will be treated as SUSPEND and the driver 8408 * will fully reinitialize its device during resume() method call, the device 8409 * will be set to PCI_D0 directly in PCI config space before restoring the 8410 * state. 8411 * 8412 * Return code 8413 * 0 - driver suspended the device 8414 * Error otherwise 8415 **/ 8416 static int 8417 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 8418 { 8419 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8420 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8421 uint32_t intr_mode; 8422 int error; 8423 8424 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8425 "0292 PCI device Power Management resume.\n"); 8426 8427 /* Restore device state from PCI config space */ 8428 pci_set_power_state(pdev, PCI_D0); 8429 pci_restore_state(pdev); 8430 8431 /* 8432 * As the new kernel behavior of pci_restore_state() API call clears 8433 * device saved_state flag, need to save the restored state again. 8434 */ 8435 pci_save_state(pdev); 8436 8437 if (pdev->is_busmaster) 8438 pci_set_master(pdev); 8439 8440 /* Startup the kernel thread for this host adapter. */ 8441 phba->worker_thread = kthread_run(lpfc_do_work, phba, 8442 "lpfc_worker_%d", phba->brd_no); 8443 if (IS_ERR(phba->worker_thread)) { 8444 error = PTR_ERR(phba->worker_thread); 8445 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8446 "0293 PM resume failed to start worker " 8447 "thread: error=x%x.\n", error); 8448 return error; 8449 } 8450 8451 /* Configure and enable interrupt */ 8452 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 8453 if (intr_mode == LPFC_INTR_ERROR) { 8454 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8455 "0294 PM resume Failed to enable interrupt\n"); 8456 return -EIO; 8457 } else 8458 phba->intr_mode = intr_mode; 8459 8460 /* Restart HBA and bring it online */ 8461 lpfc_sli_brdrestart(phba); 8462 lpfc_online(phba); 8463 8464 /* Log the current active interrupt mode */ 8465 lpfc_log_intr_mode(phba, phba->intr_mode); 8466 8467 return 0; 8468 } 8469 8470 /** 8471 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 8472 * @phba: pointer to lpfc hba data structure. 8473 * 8474 * This routine is called to prepare the SLI4 device for PCI slot recover. It 8475 * aborts all the outstanding SCSI I/Os to the pci device. 8476 **/ 8477 static void 8478 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 8479 { 8480 struct lpfc_sli *psli = &phba->sli; 8481 struct lpfc_sli_ring *pring; 8482 8483 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8484 "2828 PCI channel I/O abort preparing for recovery\n"); 8485 /* 8486 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 8487 * and let the SCSI mid-layer to retry them to recover. 8488 */ 8489 pring = &psli->ring[psli->fcp_ring]; 8490 lpfc_sli_abort_iocb_ring(phba, pring); 8491 } 8492 8493 /** 8494 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 8495 * @phba: pointer to lpfc hba data structure. 8496 * 8497 * This routine is called to prepare the SLI4 device for PCI slot reset. It 8498 * disables the device interrupt and pci device, and aborts the internal FCP 8499 * pending I/Os. 8500 **/ 8501 static void 8502 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 8503 { 8504 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8505 "2826 PCI channel disable preparing for reset\n"); 8506 8507 /* Block any management I/Os to the device */ 8508 lpfc_block_mgmt_io(phba); 8509 8510 /* Block all SCSI devices' I/Os on the host */ 8511 lpfc_scsi_dev_block(phba); 8512 8513 /* stop all timers */ 8514 lpfc_stop_hba_timers(phba); 8515 8516 /* Disable interrupt and pci device */ 8517 lpfc_sli4_disable_intr(phba); 8518 pci_disable_device(phba->pcidev); 8519 8520 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 8521 lpfc_sli_flush_fcp_rings(phba); 8522 } 8523 8524 /** 8525 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 8526 * @phba: pointer to lpfc hba data structure. 8527 * 8528 * This routine is called to prepare the SLI4 device for PCI slot permanently 8529 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 8530 * pending I/Os. 8531 **/ 8532 static void 8533 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 8534 { 8535 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8536 "2827 PCI channel permanent disable for failure\n"); 8537 8538 /* Block all SCSI devices' I/Os on the host */ 8539 lpfc_scsi_dev_block(phba); 8540 8541 /* stop all timers */ 8542 lpfc_stop_hba_timers(phba); 8543 8544 /* Clean up all driver's outstanding SCSI I/Os */ 8545 lpfc_sli_flush_fcp_rings(phba); 8546 } 8547 8548 /** 8549 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 8550 * @pdev: pointer to PCI device. 8551 * @state: the current PCI connection state. 8552 * 8553 * This routine is called from the PCI subsystem for error handling to device 8554 * with SLI-4 interface spec. This function is called by the PCI subsystem 8555 * after a PCI bus error affecting this device has been detected. When this 8556 * function is invoked, it will need to stop all the I/Os and interrupt(s) 8557 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 8558 * for the PCI subsystem to perform proper recovery as desired. 8559 * 8560 * Return codes 8561 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8562 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8563 **/ 8564 static pci_ers_result_t 8565 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 8566 { 8567 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8568 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8569 8570 switch (state) { 8571 case pci_channel_io_normal: 8572 /* Non-fatal error, prepare for recovery */ 8573 lpfc_sli4_prep_dev_for_recover(phba); 8574 return PCI_ERS_RESULT_CAN_RECOVER; 8575 case pci_channel_io_frozen: 8576 /* Fatal error, prepare for slot reset */ 8577 lpfc_sli4_prep_dev_for_reset(phba); 8578 return PCI_ERS_RESULT_NEED_RESET; 8579 case pci_channel_io_perm_failure: 8580 /* Permanent failure, prepare for device down */ 8581 lpfc_sli4_prep_dev_for_perm_failure(phba); 8582 return PCI_ERS_RESULT_DISCONNECT; 8583 default: 8584 /* Unknown state, prepare and request slot reset */ 8585 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8586 "2825 Unknown PCI error state: x%x\n", state); 8587 lpfc_sli4_prep_dev_for_reset(phba); 8588 return PCI_ERS_RESULT_NEED_RESET; 8589 } 8590 } 8591 8592 /** 8593 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 8594 * @pdev: pointer to PCI device. 8595 * 8596 * This routine is called from the PCI subsystem for error handling to device 8597 * with SLI-4 interface spec. It is called after PCI bus has been reset to 8598 * restart the PCI card from scratch, as if from a cold-boot. During the 8599 * PCI subsystem error recovery, after the driver returns 8600 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 8601 * recovery and then call this routine before calling the .resume method to 8602 * recover the device. This function will initialize the HBA device, enable 8603 * the interrupt, but it will just put the HBA to offline state without 8604 * passing any I/O traffic. 8605 * 8606 * Return codes 8607 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8608 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8609 */ 8610 static pci_ers_result_t 8611 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 8612 { 8613 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8614 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8615 struct lpfc_sli *psli = &phba->sli; 8616 uint32_t intr_mode; 8617 8618 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 8619 if (pci_enable_device_mem(pdev)) { 8620 printk(KERN_ERR "lpfc: Cannot re-enable " 8621 "PCI device after reset.\n"); 8622 return PCI_ERS_RESULT_DISCONNECT; 8623 } 8624 8625 pci_restore_state(pdev); 8626 if (pdev->is_busmaster) 8627 pci_set_master(pdev); 8628 8629 spin_lock_irq(&phba->hbalock); 8630 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 8631 spin_unlock_irq(&phba->hbalock); 8632 8633 /* Configure and enable interrupt */ 8634 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 8635 if (intr_mode == LPFC_INTR_ERROR) { 8636 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8637 "2824 Cannot re-enable interrupt after " 8638 "slot reset.\n"); 8639 return PCI_ERS_RESULT_DISCONNECT; 8640 } else 8641 phba->intr_mode = intr_mode; 8642 8643 /* Log the current active interrupt mode */ 8644 lpfc_log_intr_mode(phba, phba->intr_mode); 8645 8646 return PCI_ERS_RESULT_RECOVERED; 8647 } 8648 8649 /** 8650 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 8651 * @pdev: pointer to PCI device 8652 * 8653 * This routine is called from the PCI subsystem for error handling to device 8654 * with SLI-4 interface spec. It is called when kernel error recovery tells 8655 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8656 * error recovery. After this call, traffic can start to flow from this device 8657 * again. 8658 **/ 8659 static void 8660 lpfc_io_resume_s4(struct pci_dev *pdev) 8661 { 8662 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8663 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8664 8665 /* 8666 * In case of slot reset, as function reset is performed through 8667 * mailbox command which needs DMA to be enabled, this operation 8668 * has to be moved to the io resume phase. Taking device offline 8669 * will perform the necessary cleanup. 8670 */ 8671 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 8672 /* Perform device reset */ 8673 lpfc_offline_prep(phba); 8674 lpfc_offline(phba); 8675 lpfc_sli_brdrestart(phba); 8676 /* Bring the device back online */ 8677 lpfc_online(phba); 8678 } 8679 8680 /* Clean up Advanced Error Reporting (AER) if needed */ 8681 if (phba->hba_flag & HBA_AER_ENABLED) 8682 pci_cleanup_aer_uncorrect_error_status(pdev); 8683 } 8684 8685 /** 8686 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 8687 * @pdev: pointer to PCI device 8688 * @pid: pointer to PCI device identifier 8689 * 8690 * This routine is to be registered to the kernel's PCI subsystem. When an 8691 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 8692 * at PCI device-specific information of the device and driver to see if the 8693 * driver state that it can support this kind of device. If the match is 8694 * successful, the driver core invokes this routine. This routine dispatches 8695 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 8696 * do all the initialization that it needs to do to handle the HBA device 8697 * properly. 8698 * 8699 * Return code 8700 * 0 - driver can claim the device 8701 * negative value - driver can not claim the device 8702 **/ 8703 static int __devinit 8704 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 8705 { 8706 int rc; 8707 struct lpfc_sli_intf intf; 8708 8709 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 8710 return -ENODEV; 8711 8712 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 8713 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 8714 rc = lpfc_pci_probe_one_s4(pdev, pid); 8715 else 8716 rc = lpfc_pci_probe_one_s3(pdev, pid); 8717 8718 return rc; 8719 } 8720 8721 /** 8722 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 8723 * @pdev: pointer to PCI device 8724 * 8725 * This routine is to be registered to the kernel's PCI subsystem. When an 8726 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 8727 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 8728 * remove routine, which will perform all the necessary cleanup for the 8729 * device to be removed from the PCI subsystem properly. 8730 **/ 8731 static void __devexit 8732 lpfc_pci_remove_one(struct pci_dev *pdev) 8733 { 8734 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8735 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8736 8737 switch (phba->pci_dev_grp) { 8738 case LPFC_PCI_DEV_LP: 8739 lpfc_pci_remove_one_s3(pdev); 8740 break; 8741 case LPFC_PCI_DEV_OC: 8742 lpfc_pci_remove_one_s4(pdev); 8743 break; 8744 default: 8745 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8746 "1424 Invalid PCI device group: 0x%x\n", 8747 phba->pci_dev_grp); 8748 break; 8749 } 8750 return; 8751 } 8752 8753 /** 8754 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 8755 * @pdev: pointer to PCI device 8756 * @msg: power management message 8757 * 8758 * This routine is to be registered to the kernel's PCI subsystem to support 8759 * system Power Management (PM). When PM invokes this method, it dispatches 8760 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 8761 * suspend the device. 8762 * 8763 * Return code 8764 * 0 - driver suspended the device 8765 * Error otherwise 8766 **/ 8767 static int 8768 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 8769 { 8770 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8771 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8772 int rc = -ENODEV; 8773 8774 switch (phba->pci_dev_grp) { 8775 case LPFC_PCI_DEV_LP: 8776 rc = lpfc_pci_suspend_one_s3(pdev, msg); 8777 break; 8778 case LPFC_PCI_DEV_OC: 8779 rc = lpfc_pci_suspend_one_s4(pdev, msg); 8780 break; 8781 default: 8782 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8783 "1425 Invalid PCI device group: 0x%x\n", 8784 phba->pci_dev_grp); 8785 break; 8786 } 8787 return rc; 8788 } 8789 8790 /** 8791 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 8792 * @pdev: pointer to PCI device 8793 * 8794 * This routine is to be registered to the kernel's PCI subsystem to support 8795 * system Power Management (PM). When PM invokes this method, it dispatches 8796 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 8797 * resume the device. 8798 * 8799 * Return code 8800 * 0 - driver suspended the device 8801 * Error otherwise 8802 **/ 8803 static int 8804 lpfc_pci_resume_one(struct pci_dev *pdev) 8805 { 8806 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8807 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8808 int rc = -ENODEV; 8809 8810 switch (phba->pci_dev_grp) { 8811 case LPFC_PCI_DEV_LP: 8812 rc = lpfc_pci_resume_one_s3(pdev); 8813 break; 8814 case LPFC_PCI_DEV_OC: 8815 rc = lpfc_pci_resume_one_s4(pdev); 8816 break; 8817 default: 8818 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8819 "1426 Invalid PCI device group: 0x%x\n", 8820 phba->pci_dev_grp); 8821 break; 8822 } 8823 return rc; 8824 } 8825 8826 /** 8827 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 8828 * @pdev: pointer to PCI device. 8829 * @state: the current PCI connection state. 8830 * 8831 * This routine is registered to the PCI subsystem for error handling. This 8832 * function is called by the PCI subsystem after a PCI bus error affecting 8833 * this device has been detected. When this routine is invoked, it dispatches 8834 * the action to the proper SLI-3 or SLI-4 device error detected handling 8835 * routine, which will perform the proper error detected operation. 8836 * 8837 * Return codes 8838 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8839 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8840 **/ 8841 static pci_ers_result_t 8842 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 8843 { 8844 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8845 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8846 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 8847 8848 switch (phba->pci_dev_grp) { 8849 case LPFC_PCI_DEV_LP: 8850 rc = lpfc_io_error_detected_s3(pdev, state); 8851 break; 8852 case LPFC_PCI_DEV_OC: 8853 rc = lpfc_io_error_detected_s4(pdev, state); 8854 break; 8855 default: 8856 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8857 "1427 Invalid PCI device group: 0x%x\n", 8858 phba->pci_dev_grp); 8859 break; 8860 } 8861 return rc; 8862 } 8863 8864 /** 8865 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 8866 * @pdev: pointer to PCI device. 8867 * 8868 * This routine is registered to the PCI subsystem for error handling. This 8869 * function is called after PCI bus has been reset to restart the PCI card 8870 * from scratch, as if from a cold-boot. When this routine is invoked, it 8871 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 8872 * routine, which will perform the proper device reset. 8873 * 8874 * Return codes 8875 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8876 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8877 **/ 8878 static pci_ers_result_t 8879 lpfc_io_slot_reset(struct pci_dev *pdev) 8880 { 8881 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8882 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8883 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 8884 8885 switch (phba->pci_dev_grp) { 8886 case LPFC_PCI_DEV_LP: 8887 rc = lpfc_io_slot_reset_s3(pdev); 8888 break; 8889 case LPFC_PCI_DEV_OC: 8890 rc = lpfc_io_slot_reset_s4(pdev); 8891 break; 8892 default: 8893 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8894 "1428 Invalid PCI device group: 0x%x\n", 8895 phba->pci_dev_grp); 8896 break; 8897 } 8898 return rc; 8899 } 8900 8901 /** 8902 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 8903 * @pdev: pointer to PCI device 8904 * 8905 * This routine is registered to the PCI subsystem for error handling. It 8906 * is called when kernel error recovery tells the lpfc driver that it is 8907 * OK to resume normal PCI operation after PCI bus error recovery. When 8908 * this routine is invoked, it dispatches the action to the proper SLI-3 8909 * or SLI-4 device io_resume routine, which will resume the device operation. 8910 **/ 8911 static void 8912 lpfc_io_resume(struct pci_dev *pdev) 8913 { 8914 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8915 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8916 8917 switch (phba->pci_dev_grp) { 8918 case LPFC_PCI_DEV_LP: 8919 lpfc_io_resume_s3(pdev); 8920 break; 8921 case LPFC_PCI_DEV_OC: 8922 lpfc_io_resume_s4(pdev); 8923 break; 8924 default: 8925 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8926 "1429 Invalid PCI device group: 0x%x\n", 8927 phba->pci_dev_grp); 8928 break; 8929 } 8930 return; 8931 } 8932 8933 static struct pci_device_id lpfc_id_table[] = { 8934 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 8935 PCI_ANY_ID, PCI_ANY_ID, }, 8936 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 8937 PCI_ANY_ID, PCI_ANY_ID, }, 8938 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 8939 PCI_ANY_ID, PCI_ANY_ID, }, 8940 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 8941 PCI_ANY_ID, PCI_ANY_ID, }, 8942 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 8943 PCI_ANY_ID, PCI_ANY_ID, }, 8944 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 8945 PCI_ANY_ID, PCI_ANY_ID, }, 8946 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 8947 PCI_ANY_ID, PCI_ANY_ID, }, 8948 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 8949 PCI_ANY_ID, PCI_ANY_ID, }, 8950 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 8951 PCI_ANY_ID, PCI_ANY_ID, }, 8952 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 8953 PCI_ANY_ID, PCI_ANY_ID, }, 8954 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 8955 PCI_ANY_ID, PCI_ANY_ID, }, 8956 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 8957 PCI_ANY_ID, PCI_ANY_ID, }, 8958 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 8959 PCI_ANY_ID, PCI_ANY_ID, }, 8960 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 8961 PCI_ANY_ID, PCI_ANY_ID, }, 8962 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 8963 PCI_ANY_ID, PCI_ANY_ID, }, 8964 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 8965 PCI_ANY_ID, PCI_ANY_ID, }, 8966 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 8967 PCI_ANY_ID, PCI_ANY_ID, }, 8968 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 8969 PCI_ANY_ID, PCI_ANY_ID, }, 8970 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 8971 PCI_ANY_ID, PCI_ANY_ID, }, 8972 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 8973 PCI_ANY_ID, PCI_ANY_ID, }, 8974 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 8975 PCI_ANY_ID, PCI_ANY_ID, }, 8976 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 8977 PCI_ANY_ID, PCI_ANY_ID, }, 8978 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 8979 PCI_ANY_ID, PCI_ANY_ID, }, 8980 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 8981 PCI_ANY_ID, PCI_ANY_ID, }, 8982 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 8983 PCI_ANY_ID, PCI_ANY_ID, }, 8984 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 8985 PCI_ANY_ID, PCI_ANY_ID, }, 8986 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 8987 PCI_ANY_ID, PCI_ANY_ID, }, 8988 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 8989 PCI_ANY_ID, PCI_ANY_ID, }, 8990 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 8991 PCI_ANY_ID, PCI_ANY_ID, }, 8992 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 8993 PCI_ANY_ID, PCI_ANY_ID, }, 8994 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 8995 PCI_ANY_ID, PCI_ANY_ID, }, 8996 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 8997 PCI_ANY_ID, PCI_ANY_ID, }, 8998 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 8999 PCI_ANY_ID, PCI_ANY_ID, }, 9000 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 9001 PCI_ANY_ID, PCI_ANY_ID, }, 9002 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 9003 PCI_ANY_ID, PCI_ANY_ID, }, 9004 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 9005 PCI_ANY_ID, PCI_ANY_ID, }, 9006 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 9007 PCI_ANY_ID, PCI_ANY_ID, }, 9008 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 9009 PCI_ANY_ID, PCI_ANY_ID, }, 9010 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 9011 PCI_ANY_ID, PCI_ANY_ID, }, 9012 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 9013 PCI_ANY_ID, PCI_ANY_ID, }, 9014 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 9015 PCI_ANY_ID, PCI_ANY_ID, }, 9016 { 0 } 9017 }; 9018 9019 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 9020 9021 static struct pci_error_handlers lpfc_err_handler = { 9022 .error_detected = lpfc_io_error_detected, 9023 .slot_reset = lpfc_io_slot_reset, 9024 .resume = lpfc_io_resume, 9025 }; 9026 9027 static struct pci_driver lpfc_driver = { 9028 .name = LPFC_DRIVER_NAME, 9029 .id_table = lpfc_id_table, 9030 .probe = lpfc_pci_probe_one, 9031 .remove = __devexit_p(lpfc_pci_remove_one), 9032 .suspend = lpfc_pci_suspend_one, 9033 .resume = lpfc_pci_resume_one, 9034 .err_handler = &lpfc_err_handler, 9035 }; 9036 9037 /** 9038 * lpfc_init - lpfc module initialization routine 9039 * 9040 * This routine is to be invoked when the lpfc module is loaded into the 9041 * kernel. The special kernel macro module_init() is used to indicate the 9042 * role of this routine to the kernel as lpfc module entry point. 9043 * 9044 * Return codes 9045 * 0 - successful 9046 * -ENOMEM - FC attach transport failed 9047 * all others - failed 9048 */ 9049 static int __init 9050 lpfc_init(void) 9051 { 9052 int error = 0; 9053 9054 printk(LPFC_MODULE_DESC "\n"); 9055 printk(LPFC_COPYRIGHT "\n"); 9056 9057 if (lpfc_enable_npiv) { 9058 lpfc_transport_functions.vport_create = lpfc_vport_create; 9059 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 9060 } 9061 lpfc_transport_template = 9062 fc_attach_transport(&lpfc_transport_functions); 9063 if (lpfc_transport_template == NULL) 9064 return -ENOMEM; 9065 if (lpfc_enable_npiv) { 9066 lpfc_vport_transport_template = 9067 fc_attach_transport(&lpfc_vport_transport_functions); 9068 if (lpfc_vport_transport_template == NULL) { 9069 fc_release_transport(lpfc_transport_template); 9070 return -ENOMEM; 9071 } 9072 } 9073 error = pci_register_driver(&lpfc_driver); 9074 if (error) { 9075 fc_release_transport(lpfc_transport_template); 9076 if (lpfc_enable_npiv) 9077 fc_release_transport(lpfc_vport_transport_template); 9078 } 9079 9080 return error; 9081 } 9082 9083 /** 9084 * lpfc_exit - lpfc module removal routine 9085 * 9086 * This routine is invoked when the lpfc module is removed from the kernel. 9087 * The special kernel macro module_exit() is used to indicate the role of 9088 * this routine to the kernel as lpfc module exit point. 9089 */ 9090 static void __exit 9091 lpfc_exit(void) 9092 { 9093 pci_unregister_driver(&lpfc_driver); 9094 fc_release_transport(lpfc_transport_template); 9095 if (lpfc_enable_npiv) 9096 fc_release_transport(lpfc_vport_transport_template); 9097 if (_dump_buf_data) { 9098 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 9099 "_dump_buf_data at 0x%p\n", 9100 (1L << _dump_buf_data_order), _dump_buf_data); 9101 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 9102 } 9103 9104 if (_dump_buf_dif) { 9105 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 9106 "_dump_buf_dif at 0x%p\n", 9107 (1L << _dump_buf_dif_order), _dump_buf_dif); 9108 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 9109 } 9110 } 9111 9112 module_init(lpfc_init); 9113 module_exit(lpfc_exit); 9114 MODULE_LICENSE("GPL"); 9115 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 9116 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 9117 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 9118