1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2009 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 10 * modify it under the terms of version 2 of the GNU General * 11 * Public License as published by the Free Software Foundation. * 12 * This program is distributed in the hope that it will be useful. * 13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17 * TO BE LEGALLY INVALID. See the GNU General Public License for * 18 * more details, a copy of which can be found in the file COPYING * 19 * included with this package. * 20 *******************************************************************/ 21 22 #include <linux/blkdev.h> 23 #include <linux/delay.h> 24 #include <linux/dma-mapping.h> 25 #include <linux/idr.h> 26 #include <linux/interrupt.h> 27 #include <linux/kthread.h> 28 #include <linux/pci.h> 29 #include <linux/spinlock.h> 30 #include <linux/ctype.h> 31 #include <linux/aer.h> 32 33 #include <scsi/scsi.h> 34 #include <scsi/scsi_device.h> 35 #include <scsi/scsi_host.h> 36 #include <scsi/scsi_transport_fc.h> 37 38 #include "lpfc_hw4.h" 39 #include "lpfc_hw.h" 40 #include "lpfc_sli.h" 41 #include "lpfc_sli4.h" 42 #include "lpfc_nl.h" 43 #include "lpfc_disc.h" 44 #include "lpfc_scsi.h" 45 #include "lpfc.h" 46 #include "lpfc_logmsg.h" 47 #include "lpfc_crtn.h" 48 #include "lpfc_vport.h" 49 #include "lpfc_version.h" 50 51 char *_dump_buf_data; 52 unsigned long _dump_buf_data_order; 53 char *_dump_buf_dif; 54 unsigned long _dump_buf_dif_order; 55 spinlock_t _dump_buf_lock; 56 57 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 58 static int lpfc_post_rcv_buf(struct lpfc_hba *); 59 static int lpfc_sli4_queue_create(struct lpfc_hba *); 60 static void lpfc_sli4_queue_destroy(struct lpfc_hba *); 61 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 62 static int lpfc_setup_endian_order(struct lpfc_hba *); 63 static int lpfc_sli4_read_config(struct lpfc_hba *); 64 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 65 static void lpfc_free_sgl_list(struct lpfc_hba *); 66 static int lpfc_init_sgl_list(struct lpfc_hba *); 67 static int lpfc_init_active_sgl_array(struct lpfc_hba *); 68 static void lpfc_free_active_sgl(struct lpfc_hba *); 69 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 70 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 71 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 72 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 73 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 74 75 static struct scsi_transport_template *lpfc_transport_template = NULL; 76 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 77 static DEFINE_IDR(lpfc_hba_index); 78 79 /** 80 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 81 * @phba: pointer to lpfc hba data structure. 82 * 83 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 84 * mailbox command. It retrieves the revision information from the HBA and 85 * collects the Vital Product Data (VPD) about the HBA for preparing the 86 * configuration of the HBA. 87 * 88 * Return codes: 89 * 0 - success. 90 * -ERESTART - requests the SLI layer to reset the HBA and try again. 91 * Any other value - indicates an error. 92 **/ 93 int 94 lpfc_config_port_prep(struct lpfc_hba *phba) 95 { 96 lpfc_vpd_t *vp = &phba->vpd; 97 int i = 0, rc; 98 LPFC_MBOXQ_t *pmb; 99 MAILBOX_t *mb; 100 char *lpfc_vpd_data = NULL; 101 uint16_t offset = 0; 102 static char licensed[56] = 103 "key unlock for use with gnu public licensed code only\0"; 104 static int init_key = 1; 105 106 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 107 if (!pmb) { 108 phba->link_state = LPFC_HBA_ERROR; 109 return -ENOMEM; 110 } 111 112 mb = &pmb->u.mb; 113 phba->link_state = LPFC_INIT_MBX_CMDS; 114 115 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 116 if (init_key) { 117 uint32_t *ptext = (uint32_t *) licensed; 118 119 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 120 *ptext = cpu_to_be32(*ptext); 121 init_key = 0; 122 } 123 124 lpfc_read_nv(phba, pmb); 125 memset((char*)mb->un.varRDnvp.rsvd3, 0, 126 sizeof (mb->un.varRDnvp.rsvd3)); 127 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 128 sizeof (licensed)); 129 130 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 131 132 if (rc != MBX_SUCCESS) { 133 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 134 "0324 Config Port initialization " 135 "error, mbxCmd x%x READ_NVPARM, " 136 "mbxStatus x%x\n", 137 mb->mbxCommand, mb->mbxStatus); 138 mempool_free(pmb, phba->mbox_mem_pool); 139 return -ERESTART; 140 } 141 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 142 sizeof(phba->wwnn)); 143 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 144 sizeof(phba->wwpn)); 145 } 146 147 phba->sli3_options = 0x0; 148 149 /* Setup and issue mailbox READ REV command */ 150 lpfc_read_rev(phba, pmb); 151 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 152 if (rc != MBX_SUCCESS) { 153 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 154 "0439 Adapter failed to init, mbxCmd x%x " 155 "READ_REV, mbxStatus x%x\n", 156 mb->mbxCommand, mb->mbxStatus); 157 mempool_free( pmb, phba->mbox_mem_pool); 158 return -ERESTART; 159 } 160 161 162 /* 163 * The value of rr must be 1 since the driver set the cv field to 1. 164 * This setting requires the FW to set all revision fields. 165 */ 166 if (mb->un.varRdRev.rr == 0) { 167 vp->rev.rBit = 0; 168 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 169 "0440 Adapter failed to init, READ_REV has " 170 "missing revision information.\n"); 171 mempool_free(pmb, phba->mbox_mem_pool); 172 return -ERESTART; 173 } 174 175 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 176 mempool_free(pmb, phba->mbox_mem_pool); 177 return -EINVAL; 178 } 179 180 /* Save information as VPD data */ 181 vp->rev.rBit = 1; 182 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 183 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 184 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 185 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 186 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 187 vp->rev.biuRev = mb->un.varRdRev.biuRev; 188 vp->rev.smRev = mb->un.varRdRev.smRev; 189 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 190 vp->rev.endecRev = mb->un.varRdRev.endecRev; 191 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 192 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 193 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 194 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 195 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 196 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 197 198 /* If the sli feature level is less then 9, we must 199 * tear down all RPIs and VPIs on link down if NPIV 200 * is enabled. 201 */ 202 if (vp->rev.feaLevelHigh < 9) 203 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 204 205 if (lpfc_is_LC_HBA(phba->pcidev->device)) 206 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 207 sizeof (phba->RandomData)); 208 209 /* Get adapter VPD information */ 210 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 211 if (!lpfc_vpd_data) 212 goto out_free_mbox; 213 214 do { 215 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 216 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 217 218 if (rc != MBX_SUCCESS) { 219 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 220 "0441 VPD not present on adapter, " 221 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 222 mb->mbxCommand, mb->mbxStatus); 223 mb->un.varDmp.word_cnt = 0; 224 } 225 /* dump mem may return a zero when finished or we got a 226 * mailbox error, either way we are done. 227 */ 228 if (mb->un.varDmp.word_cnt == 0) 229 break; 230 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 231 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 232 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 233 lpfc_vpd_data + offset, 234 mb->un.varDmp.word_cnt); 235 offset += mb->un.varDmp.word_cnt; 236 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 237 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 238 239 kfree(lpfc_vpd_data); 240 out_free_mbox: 241 mempool_free(pmb, phba->mbox_mem_pool); 242 return 0; 243 } 244 245 /** 246 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 247 * @phba: pointer to lpfc hba data structure. 248 * @pmboxq: pointer to the driver internal queue element for mailbox command. 249 * 250 * This is the completion handler for driver's configuring asynchronous event 251 * mailbox command to the device. If the mailbox command returns successfully, 252 * it will set internal async event support flag to 1; otherwise, it will 253 * set internal async event support flag to 0. 254 **/ 255 static void 256 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 257 { 258 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 259 phba->temp_sensor_support = 1; 260 else 261 phba->temp_sensor_support = 0; 262 mempool_free(pmboxq, phba->mbox_mem_pool); 263 return; 264 } 265 266 /** 267 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 268 * @phba: pointer to lpfc hba data structure. 269 * @pmboxq: pointer to the driver internal queue element for mailbox command. 270 * 271 * This is the completion handler for dump mailbox command for getting 272 * wake up parameters. When this command complete, the response contain 273 * Option rom version of the HBA. This function translate the version number 274 * into a human readable string and store it in OptionROMVersion. 275 **/ 276 static void 277 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 278 { 279 struct prog_id *prg; 280 uint32_t prog_id_word; 281 char dist = ' '; 282 /* character array used for decoding dist type. */ 283 char dist_char[] = "nabx"; 284 285 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 286 mempool_free(pmboxq, phba->mbox_mem_pool); 287 return; 288 } 289 290 prg = (struct prog_id *) &prog_id_word; 291 292 /* word 7 contain option rom version */ 293 prog_id_word = pmboxq->u.mb.un.varWords[7]; 294 295 /* Decode the Option rom version word to a readable string */ 296 if (prg->dist < 4) 297 dist = dist_char[prg->dist]; 298 299 if ((prg->dist == 3) && (prg->num == 0)) 300 sprintf(phba->OptionROMVersion, "%d.%d%d", 301 prg->ver, prg->rev, prg->lev); 302 else 303 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 304 prg->ver, prg->rev, prg->lev, 305 dist, prg->num); 306 mempool_free(pmboxq, phba->mbox_mem_pool); 307 return; 308 } 309 310 /** 311 * lpfc_config_port_post - Perform lpfc initialization after config port 312 * @phba: pointer to lpfc hba data structure. 313 * 314 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 315 * command call. It performs all internal resource and state setups on the 316 * port: post IOCB buffers, enable appropriate host interrupt attentions, 317 * ELS ring timers, etc. 318 * 319 * Return codes 320 * 0 - success. 321 * Any other value - error. 322 **/ 323 int 324 lpfc_config_port_post(struct lpfc_hba *phba) 325 { 326 struct lpfc_vport *vport = phba->pport; 327 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 328 LPFC_MBOXQ_t *pmb; 329 MAILBOX_t *mb; 330 struct lpfc_dmabuf *mp; 331 struct lpfc_sli *psli = &phba->sli; 332 uint32_t status, timeout; 333 int i, j; 334 int rc; 335 336 spin_lock_irq(&phba->hbalock); 337 /* 338 * If the Config port completed correctly the HBA is not 339 * over heated any more. 340 */ 341 if (phba->over_temp_state == HBA_OVER_TEMP) 342 phba->over_temp_state = HBA_NORMAL_TEMP; 343 spin_unlock_irq(&phba->hbalock); 344 345 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 346 if (!pmb) { 347 phba->link_state = LPFC_HBA_ERROR; 348 return -ENOMEM; 349 } 350 mb = &pmb->u.mb; 351 352 /* Get login parameters for NID. */ 353 lpfc_read_sparam(phba, pmb, 0); 354 pmb->vport = vport; 355 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 356 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 357 "0448 Adapter failed init, mbxCmd x%x " 358 "READ_SPARM mbxStatus x%x\n", 359 mb->mbxCommand, mb->mbxStatus); 360 phba->link_state = LPFC_HBA_ERROR; 361 mp = (struct lpfc_dmabuf *) pmb->context1; 362 mempool_free( pmb, phba->mbox_mem_pool); 363 lpfc_mbuf_free(phba, mp->virt, mp->phys); 364 kfree(mp); 365 return -EIO; 366 } 367 368 mp = (struct lpfc_dmabuf *) pmb->context1; 369 370 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 371 lpfc_mbuf_free(phba, mp->virt, mp->phys); 372 kfree(mp); 373 pmb->context1 = NULL; 374 375 if (phba->cfg_soft_wwnn) 376 u64_to_wwn(phba->cfg_soft_wwnn, 377 vport->fc_sparam.nodeName.u.wwn); 378 if (phba->cfg_soft_wwpn) 379 u64_to_wwn(phba->cfg_soft_wwpn, 380 vport->fc_sparam.portName.u.wwn); 381 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 382 sizeof (struct lpfc_name)); 383 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 384 sizeof (struct lpfc_name)); 385 386 /* Update the fc_host data structures with new wwn. */ 387 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 388 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 389 fc_host_max_npiv_vports(shost) = phba->max_vpi; 390 391 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 392 /* This should be consolidated into parse_vpd ? - mr */ 393 if (phba->SerialNumber[0] == 0) { 394 uint8_t *outptr; 395 396 outptr = &vport->fc_nodename.u.s.IEEE[0]; 397 for (i = 0; i < 12; i++) { 398 status = *outptr++; 399 j = ((status & 0xf0) >> 4); 400 if (j <= 9) 401 phba->SerialNumber[i] = 402 (char)((uint8_t) 0x30 + (uint8_t) j); 403 else 404 phba->SerialNumber[i] = 405 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 406 i++; 407 j = (status & 0xf); 408 if (j <= 9) 409 phba->SerialNumber[i] = 410 (char)((uint8_t) 0x30 + (uint8_t) j); 411 else 412 phba->SerialNumber[i] = 413 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 414 } 415 } 416 417 lpfc_read_config(phba, pmb); 418 pmb->vport = vport; 419 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 420 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 421 "0453 Adapter failed to init, mbxCmd x%x " 422 "READ_CONFIG, mbxStatus x%x\n", 423 mb->mbxCommand, mb->mbxStatus); 424 phba->link_state = LPFC_HBA_ERROR; 425 mempool_free( pmb, phba->mbox_mem_pool); 426 return -EIO; 427 } 428 429 /* Check if the port is disabled */ 430 lpfc_sli_read_link_ste(phba); 431 432 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 433 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 434 phba->cfg_hba_queue_depth = 435 (mb->un.varRdConfig.max_xri + 1) - 436 lpfc_sli4_get_els_iocb_cnt(phba); 437 438 phba->lmt = mb->un.varRdConfig.lmt; 439 440 /* Get the default values for Model Name and Description */ 441 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 442 443 if ((phba->cfg_link_speed > LINK_SPEED_10G) 444 || ((phba->cfg_link_speed == LINK_SPEED_1G) 445 && !(phba->lmt & LMT_1Gb)) 446 || ((phba->cfg_link_speed == LINK_SPEED_2G) 447 && !(phba->lmt & LMT_2Gb)) 448 || ((phba->cfg_link_speed == LINK_SPEED_4G) 449 && !(phba->lmt & LMT_4Gb)) 450 || ((phba->cfg_link_speed == LINK_SPEED_8G) 451 && !(phba->lmt & LMT_8Gb)) 452 || ((phba->cfg_link_speed == LINK_SPEED_10G) 453 && !(phba->lmt & LMT_10Gb))) { 454 /* Reset link speed to auto */ 455 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT, 456 "1302 Invalid speed for this board: " 457 "Reset link speed to auto: x%x\n", 458 phba->cfg_link_speed); 459 phba->cfg_link_speed = LINK_SPEED_AUTO; 460 } 461 462 phba->link_state = LPFC_LINK_DOWN; 463 464 /* Only process IOCBs on ELS ring till hba_state is READY */ 465 if (psli->ring[psli->extra_ring].cmdringaddr) 466 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 467 if (psli->ring[psli->fcp_ring].cmdringaddr) 468 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 469 if (psli->ring[psli->next_ring].cmdringaddr) 470 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 471 472 /* Post receive buffers for desired rings */ 473 if (phba->sli_rev != 3) 474 lpfc_post_rcv_buf(phba); 475 476 /* 477 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 478 */ 479 if (phba->intr_type == MSIX) { 480 rc = lpfc_config_msi(phba, pmb); 481 if (rc) { 482 mempool_free(pmb, phba->mbox_mem_pool); 483 return -EIO; 484 } 485 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 486 if (rc != MBX_SUCCESS) { 487 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 488 "0352 Config MSI mailbox command " 489 "failed, mbxCmd x%x, mbxStatus x%x\n", 490 pmb->u.mb.mbxCommand, 491 pmb->u.mb.mbxStatus); 492 mempool_free(pmb, phba->mbox_mem_pool); 493 return -EIO; 494 } 495 } 496 497 spin_lock_irq(&phba->hbalock); 498 /* Initialize ERATT handling flag */ 499 phba->hba_flag &= ~HBA_ERATT_HANDLED; 500 501 /* Enable appropriate host interrupts */ 502 status = readl(phba->HCregaddr); 503 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 504 if (psli->num_rings > 0) 505 status |= HC_R0INT_ENA; 506 if (psli->num_rings > 1) 507 status |= HC_R1INT_ENA; 508 if (psli->num_rings > 2) 509 status |= HC_R2INT_ENA; 510 if (psli->num_rings > 3) 511 status |= HC_R3INT_ENA; 512 513 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 514 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 515 status &= ~(HC_R0INT_ENA); 516 517 writel(status, phba->HCregaddr); 518 readl(phba->HCregaddr); /* flush */ 519 spin_unlock_irq(&phba->hbalock); 520 521 /* Set up ring-0 (ELS) timer */ 522 timeout = phba->fc_ratov * 2; 523 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 524 /* Set up heart beat (HB) timer */ 525 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 526 phba->hb_outstanding = 0; 527 phba->last_completion_time = jiffies; 528 /* Set up error attention (ERATT) polling timer */ 529 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 530 531 if (phba->hba_flag & LINK_DISABLED) { 532 lpfc_printf_log(phba, 533 KERN_ERR, LOG_INIT, 534 "2598 Adapter Link is disabled.\n"); 535 lpfc_down_link(phba, pmb); 536 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 537 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 538 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 539 lpfc_printf_log(phba, 540 KERN_ERR, LOG_INIT, 541 "2599 Adapter failed to issue DOWN_LINK" 542 " mbox command rc 0x%x\n", rc); 543 544 mempool_free(pmb, phba->mbox_mem_pool); 545 return -EIO; 546 } 547 } else { 548 lpfc_init_link(phba, pmb, phba->cfg_topology, 549 phba->cfg_link_speed); 550 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 551 lpfc_set_loopback_flag(phba); 552 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 553 if (rc != MBX_SUCCESS) { 554 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 555 "0454 Adapter failed to init, mbxCmd x%x " 556 "INIT_LINK, mbxStatus x%x\n", 557 mb->mbxCommand, mb->mbxStatus); 558 559 /* Clear all interrupt enable conditions */ 560 writel(0, phba->HCregaddr); 561 readl(phba->HCregaddr); /* flush */ 562 /* Clear all pending interrupts */ 563 writel(0xffffffff, phba->HAregaddr); 564 readl(phba->HAregaddr); /* flush */ 565 566 phba->link_state = LPFC_HBA_ERROR; 567 if (rc != MBX_BUSY) 568 mempool_free(pmb, phba->mbox_mem_pool); 569 return -EIO; 570 } 571 } 572 /* MBOX buffer will be freed in mbox compl */ 573 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 574 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 575 pmb->mbox_cmpl = lpfc_config_async_cmpl; 576 pmb->vport = phba->pport; 577 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 578 579 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 580 lpfc_printf_log(phba, 581 KERN_ERR, 582 LOG_INIT, 583 "0456 Adapter failed to issue " 584 "ASYNCEVT_ENABLE mbox status x%x\n", 585 rc); 586 mempool_free(pmb, phba->mbox_mem_pool); 587 } 588 589 /* Get Option rom version */ 590 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 591 lpfc_dump_wakeup_param(phba, pmb); 592 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 593 pmb->vport = phba->pport; 594 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 595 596 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 597 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 598 "to get Option ROM version status x%x\n", rc); 599 mempool_free(pmb, phba->mbox_mem_pool); 600 } 601 602 return 0; 603 } 604 605 /** 606 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 607 * @phba: pointer to lpfc HBA data structure. 608 * 609 * This routine will do LPFC uninitialization before the HBA is reset when 610 * bringing down the SLI Layer. 611 * 612 * Return codes 613 * 0 - success. 614 * Any other value - error. 615 **/ 616 int 617 lpfc_hba_down_prep(struct lpfc_hba *phba) 618 { 619 struct lpfc_vport **vports; 620 int i; 621 622 if (phba->sli_rev <= LPFC_SLI_REV3) { 623 /* Disable interrupts */ 624 writel(0, phba->HCregaddr); 625 readl(phba->HCregaddr); /* flush */ 626 } 627 628 if (phba->pport->load_flag & FC_UNLOADING) 629 lpfc_cleanup_discovery_resources(phba->pport); 630 else { 631 vports = lpfc_create_vport_work_array(phba); 632 if (vports != NULL) 633 for (i = 0; i <= phba->max_vports && 634 vports[i] != NULL; i++) 635 lpfc_cleanup_discovery_resources(vports[i]); 636 lpfc_destroy_vport_work_array(phba, vports); 637 } 638 return 0; 639 } 640 641 /** 642 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 643 * @phba: pointer to lpfc HBA data structure. 644 * 645 * This routine will do uninitialization after the HBA is reset when bring 646 * down the SLI Layer. 647 * 648 * Return codes 649 * 0 - success. 650 * Any other value - error. 651 **/ 652 static int 653 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 654 { 655 struct lpfc_sli *psli = &phba->sli; 656 struct lpfc_sli_ring *pring; 657 struct lpfc_dmabuf *mp, *next_mp; 658 LIST_HEAD(completions); 659 int i; 660 661 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 662 lpfc_sli_hbqbuf_free_all(phba); 663 else { 664 /* Cleanup preposted buffers on the ELS ring */ 665 pring = &psli->ring[LPFC_ELS_RING]; 666 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 667 list_del(&mp->list); 668 pring->postbufq_cnt--; 669 lpfc_mbuf_free(phba, mp->virt, mp->phys); 670 kfree(mp); 671 } 672 } 673 674 spin_lock_irq(&phba->hbalock); 675 for (i = 0; i < psli->num_rings; i++) { 676 pring = &psli->ring[i]; 677 678 /* At this point in time the HBA is either reset or DOA. Either 679 * way, nothing should be on txcmplq as it will NEVER complete. 680 */ 681 list_splice_init(&pring->txcmplq, &completions); 682 pring->txcmplq_cnt = 0; 683 spin_unlock_irq(&phba->hbalock); 684 685 /* Cancel all the IOCBs from the completions list */ 686 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 687 IOERR_SLI_ABORTED); 688 689 lpfc_sli_abort_iocb_ring(phba, pring); 690 spin_lock_irq(&phba->hbalock); 691 } 692 spin_unlock_irq(&phba->hbalock); 693 694 return 0; 695 } 696 /** 697 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 698 * @phba: pointer to lpfc HBA data structure. 699 * 700 * This routine will do uninitialization after the HBA is reset when bring 701 * down the SLI Layer. 702 * 703 * Return codes 704 * 0 - success. 705 * Any other value - error. 706 **/ 707 static int 708 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 709 { 710 struct lpfc_scsi_buf *psb, *psb_next; 711 LIST_HEAD(aborts); 712 int ret; 713 unsigned long iflag = 0; 714 ret = lpfc_hba_down_post_s3(phba); 715 if (ret) 716 return ret; 717 /* At this point in time the HBA is either reset or DOA. Either 718 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 719 * on the lpfc_sgl_list so that it can either be freed if the 720 * driver is unloading or reposted if the driver is restarting 721 * the port. 722 */ 723 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 724 /* scsl_buf_list */ 725 /* abts_sgl_list_lock required because worker thread uses this 726 * list. 727 */ 728 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 729 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 730 &phba->sli4_hba.lpfc_sgl_list); 731 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 732 /* abts_scsi_buf_list_lock required because worker thread uses this 733 * list. 734 */ 735 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 736 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 737 &aborts); 738 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 739 spin_unlock_irq(&phba->hbalock); 740 741 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 742 psb->pCmd = NULL; 743 psb->status = IOSTAT_SUCCESS; 744 } 745 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 746 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 747 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 748 return 0; 749 } 750 751 /** 752 * lpfc_hba_down_post - Wrapper func for hba down post routine 753 * @phba: pointer to lpfc HBA data structure. 754 * 755 * This routine wraps the actual SLI3 or SLI4 routine for performing 756 * uninitialization after the HBA is reset when bring down the SLI Layer. 757 * 758 * Return codes 759 * 0 - success. 760 * Any other value - error. 761 **/ 762 int 763 lpfc_hba_down_post(struct lpfc_hba *phba) 764 { 765 return (*phba->lpfc_hba_down_post)(phba); 766 } 767 768 /** 769 * lpfc_hb_timeout - The HBA-timer timeout handler 770 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 771 * 772 * This is the HBA-timer timeout handler registered to the lpfc driver. When 773 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 774 * work-port-events bitmap and the worker thread is notified. This timeout 775 * event will be used by the worker thread to invoke the actual timeout 776 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 777 * be performed in the timeout handler and the HBA timeout event bit shall 778 * be cleared by the worker thread after it has taken the event bitmap out. 779 **/ 780 static void 781 lpfc_hb_timeout(unsigned long ptr) 782 { 783 struct lpfc_hba *phba; 784 uint32_t tmo_posted; 785 unsigned long iflag; 786 787 phba = (struct lpfc_hba *)ptr; 788 789 /* Check for heart beat timeout conditions */ 790 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 791 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 792 if (!tmo_posted) 793 phba->pport->work_port_events |= WORKER_HB_TMO; 794 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 795 796 /* Tell the worker thread there is work to do */ 797 if (!tmo_posted) 798 lpfc_worker_wake_up(phba); 799 return; 800 } 801 802 /** 803 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 804 * @phba: pointer to lpfc hba data structure. 805 * @pmboxq: pointer to the driver internal queue element for mailbox command. 806 * 807 * This is the callback function to the lpfc heart-beat mailbox command. 808 * If configured, the lpfc driver issues the heart-beat mailbox command to 809 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 810 * heart-beat mailbox command is issued, the driver shall set up heart-beat 811 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 812 * heart-beat outstanding state. Once the mailbox command comes back and 813 * no error conditions detected, the heart-beat mailbox command timer is 814 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 815 * state is cleared for the next heart-beat. If the timer expired with the 816 * heart-beat outstanding state set, the driver will put the HBA offline. 817 **/ 818 static void 819 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 820 { 821 unsigned long drvr_flag; 822 823 spin_lock_irqsave(&phba->hbalock, drvr_flag); 824 phba->hb_outstanding = 0; 825 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 826 827 /* Check and reset heart-beat timer is necessary */ 828 mempool_free(pmboxq, phba->mbox_mem_pool); 829 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 830 !(phba->link_state == LPFC_HBA_ERROR) && 831 !(phba->pport->load_flag & FC_UNLOADING)) 832 mod_timer(&phba->hb_tmofunc, 833 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 834 return; 835 } 836 837 /** 838 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 839 * @phba: pointer to lpfc hba data structure. 840 * 841 * This is the actual HBA-timer timeout handler to be invoked by the worker 842 * thread whenever the HBA timer fired and HBA-timeout event posted. This 843 * handler performs any periodic operations needed for the device. If such 844 * periodic event has already been attended to either in the interrupt handler 845 * or by processing slow-ring or fast-ring events within the HBA-timer 846 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 847 * the timer for the next timeout period. If lpfc heart-beat mailbox command 848 * is configured and there is no heart-beat mailbox command outstanding, a 849 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 850 * has been a heart-beat mailbox command outstanding, the HBA shall be put 851 * to offline. 852 **/ 853 void 854 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 855 { 856 struct lpfc_vport **vports; 857 LPFC_MBOXQ_t *pmboxq; 858 struct lpfc_dmabuf *buf_ptr; 859 int retval, i; 860 struct lpfc_sli *psli = &phba->sli; 861 LIST_HEAD(completions); 862 863 vports = lpfc_create_vport_work_array(phba); 864 if (vports != NULL) 865 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 866 lpfc_rcv_seq_check_edtov(vports[i]); 867 lpfc_destroy_vport_work_array(phba, vports); 868 869 if ((phba->link_state == LPFC_HBA_ERROR) || 870 (phba->pport->load_flag & FC_UNLOADING) || 871 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 872 return; 873 874 spin_lock_irq(&phba->pport->work_port_lock); 875 876 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 877 jiffies)) { 878 spin_unlock_irq(&phba->pport->work_port_lock); 879 if (!phba->hb_outstanding) 880 mod_timer(&phba->hb_tmofunc, 881 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 882 else 883 mod_timer(&phba->hb_tmofunc, 884 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 885 return; 886 } 887 spin_unlock_irq(&phba->pport->work_port_lock); 888 889 if (phba->elsbuf_cnt && 890 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 891 spin_lock_irq(&phba->hbalock); 892 list_splice_init(&phba->elsbuf, &completions); 893 phba->elsbuf_cnt = 0; 894 phba->elsbuf_prev_cnt = 0; 895 spin_unlock_irq(&phba->hbalock); 896 897 while (!list_empty(&completions)) { 898 list_remove_head(&completions, buf_ptr, 899 struct lpfc_dmabuf, list); 900 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 901 kfree(buf_ptr); 902 } 903 } 904 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 905 906 /* If there is no heart beat outstanding, issue a heartbeat command */ 907 if (phba->cfg_enable_hba_heartbeat) { 908 if (!phba->hb_outstanding) { 909 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 910 if (!pmboxq) { 911 mod_timer(&phba->hb_tmofunc, 912 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 913 return; 914 } 915 916 lpfc_heart_beat(phba, pmboxq); 917 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 918 pmboxq->vport = phba->pport; 919 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); 920 921 if (retval != MBX_BUSY && retval != MBX_SUCCESS) { 922 mempool_free(pmboxq, phba->mbox_mem_pool); 923 mod_timer(&phba->hb_tmofunc, 924 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 925 return; 926 } 927 mod_timer(&phba->hb_tmofunc, 928 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 929 phba->hb_outstanding = 1; 930 return; 931 } else { 932 /* 933 * If heart beat timeout called with hb_outstanding set 934 * we need to take the HBA offline. 935 */ 936 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 937 "0459 Adapter heartbeat failure, " 938 "taking this port offline.\n"); 939 940 spin_lock_irq(&phba->hbalock); 941 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 942 spin_unlock_irq(&phba->hbalock); 943 944 lpfc_offline_prep(phba); 945 lpfc_offline(phba); 946 lpfc_unblock_mgmt_io(phba); 947 phba->link_state = LPFC_HBA_ERROR; 948 lpfc_hba_down_post(phba); 949 } 950 } 951 } 952 953 /** 954 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 955 * @phba: pointer to lpfc hba data structure. 956 * 957 * This routine is called to bring the HBA offline when HBA hardware error 958 * other than Port Error 6 has been detected. 959 **/ 960 static void 961 lpfc_offline_eratt(struct lpfc_hba *phba) 962 { 963 struct lpfc_sli *psli = &phba->sli; 964 965 spin_lock_irq(&phba->hbalock); 966 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 967 spin_unlock_irq(&phba->hbalock); 968 lpfc_offline_prep(phba); 969 970 lpfc_offline(phba); 971 lpfc_reset_barrier(phba); 972 spin_lock_irq(&phba->hbalock); 973 lpfc_sli_brdreset(phba); 974 spin_unlock_irq(&phba->hbalock); 975 lpfc_hba_down_post(phba); 976 lpfc_sli_brdready(phba, HS_MBRDY); 977 lpfc_unblock_mgmt_io(phba); 978 phba->link_state = LPFC_HBA_ERROR; 979 return; 980 } 981 982 /** 983 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 984 * @phba: pointer to lpfc hba data structure. 985 * 986 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 987 * other than Port Error 6 has been detected. 988 **/ 989 static void 990 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 991 { 992 lpfc_offline_prep(phba); 993 lpfc_offline(phba); 994 lpfc_sli4_brdreset(phba); 995 lpfc_hba_down_post(phba); 996 lpfc_sli4_post_status_check(phba); 997 lpfc_unblock_mgmt_io(phba); 998 phba->link_state = LPFC_HBA_ERROR; 999 } 1000 1001 /** 1002 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1003 * @phba: pointer to lpfc hba data structure. 1004 * 1005 * This routine is invoked to handle the deferred HBA hardware error 1006 * conditions. This type of error is indicated by HBA by setting ER1 1007 * and another ER bit in the host status register. The driver will 1008 * wait until the ER1 bit clears before handling the error condition. 1009 **/ 1010 static void 1011 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1012 { 1013 uint32_t old_host_status = phba->work_hs; 1014 struct lpfc_sli_ring *pring; 1015 struct lpfc_sli *psli = &phba->sli; 1016 1017 /* If the pci channel is offline, ignore possible errors, 1018 * since we cannot communicate with the pci card anyway. 1019 */ 1020 if (pci_channel_offline(phba->pcidev)) { 1021 spin_lock_irq(&phba->hbalock); 1022 phba->hba_flag &= ~DEFER_ERATT; 1023 spin_unlock_irq(&phba->hbalock); 1024 return; 1025 } 1026 1027 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1028 "0479 Deferred Adapter Hardware Error " 1029 "Data: x%x x%x x%x\n", 1030 phba->work_hs, 1031 phba->work_status[0], phba->work_status[1]); 1032 1033 spin_lock_irq(&phba->hbalock); 1034 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1035 spin_unlock_irq(&phba->hbalock); 1036 1037 1038 /* 1039 * Firmware stops when it triggred erratt. That could cause the I/Os 1040 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1041 * SCSI layer retry it after re-establishing link. 1042 */ 1043 pring = &psli->ring[psli->fcp_ring]; 1044 lpfc_sli_abort_iocb_ring(phba, pring); 1045 1046 /* 1047 * There was a firmware error. Take the hba offline and then 1048 * attempt to restart it. 1049 */ 1050 lpfc_offline_prep(phba); 1051 lpfc_offline(phba); 1052 1053 /* Wait for the ER1 bit to clear.*/ 1054 while (phba->work_hs & HS_FFER1) { 1055 msleep(100); 1056 phba->work_hs = readl(phba->HSregaddr); 1057 /* If driver is unloading let the worker thread continue */ 1058 if (phba->pport->load_flag & FC_UNLOADING) { 1059 phba->work_hs = 0; 1060 break; 1061 } 1062 } 1063 1064 /* 1065 * This is to ptrotect against a race condition in which 1066 * first write to the host attention register clear the 1067 * host status register. 1068 */ 1069 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1070 phba->work_hs = old_host_status & ~HS_FFER1; 1071 1072 spin_lock_irq(&phba->hbalock); 1073 phba->hba_flag &= ~DEFER_ERATT; 1074 spin_unlock_irq(&phba->hbalock); 1075 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1076 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1077 } 1078 1079 static void 1080 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1081 { 1082 struct lpfc_board_event_header board_event; 1083 struct Scsi_Host *shost; 1084 1085 board_event.event_type = FC_REG_BOARD_EVENT; 1086 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1087 shost = lpfc_shost_from_vport(phba->pport); 1088 fc_host_post_vendor_event(shost, fc_get_event_number(), 1089 sizeof(board_event), 1090 (char *) &board_event, 1091 LPFC_NL_VENDOR_ID); 1092 } 1093 1094 /** 1095 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1096 * @phba: pointer to lpfc hba data structure. 1097 * 1098 * This routine is invoked to handle the following HBA hardware error 1099 * conditions: 1100 * 1 - HBA error attention interrupt 1101 * 2 - DMA ring index out of range 1102 * 3 - Mailbox command came back as unknown 1103 **/ 1104 static void 1105 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1106 { 1107 struct lpfc_vport *vport = phba->pport; 1108 struct lpfc_sli *psli = &phba->sli; 1109 struct lpfc_sli_ring *pring; 1110 uint32_t event_data; 1111 unsigned long temperature; 1112 struct temp_event temp_event_data; 1113 struct Scsi_Host *shost; 1114 1115 /* If the pci channel is offline, ignore possible errors, 1116 * since we cannot communicate with the pci card anyway. 1117 */ 1118 if (pci_channel_offline(phba->pcidev)) { 1119 spin_lock_irq(&phba->hbalock); 1120 phba->hba_flag &= ~DEFER_ERATT; 1121 spin_unlock_irq(&phba->hbalock); 1122 return; 1123 } 1124 1125 /* If resets are disabled then leave the HBA alone and return */ 1126 if (!phba->cfg_enable_hba_reset) 1127 return; 1128 1129 /* Send an internal error event to mgmt application */ 1130 lpfc_board_errevt_to_mgmt(phba); 1131 1132 if (phba->hba_flag & DEFER_ERATT) 1133 lpfc_handle_deferred_eratt(phba); 1134 1135 if (phba->work_hs & HS_FFER6) { 1136 /* Re-establishing Link */ 1137 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1138 "1301 Re-establishing Link " 1139 "Data: x%x x%x x%x\n", 1140 phba->work_hs, 1141 phba->work_status[0], phba->work_status[1]); 1142 1143 spin_lock_irq(&phba->hbalock); 1144 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1145 spin_unlock_irq(&phba->hbalock); 1146 1147 /* 1148 * Firmware stops when it triggled erratt with HS_FFER6. 1149 * That could cause the I/Os dropped by the firmware. 1150 * Error iocb (I/O) on txcmplq and let the SCSI layer 1151 * retry it after re-establishing link. 1152 */ 1153 pring = &psli->ring[psli->fcp_ring]; 1154 lpfc_sli_abort_iocb_ring(phba, pring); 1155 1156 /* 1157 * There was a firmware error. Take the hba offline and then 1158 * attempt to restart it. 1159 */ 1160 lpfc_offline_prep(phba); 1161 lpfc_offline(phba); 1162 lpfc_sli_brdrestart(phba); 1163 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1164 lpfc_unblock_mgmt_io(phba); 1165 return; 1166 } 1167 lpfc_unblock_mgmt_io(phba); 1168 } else if (phba->work_hs & HS_CRIT_TEMP) { 1169 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1170 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1171 temp_event_data.event_code = LPFC_CRIT_TEMP; 1172 temp_event_data.data = (uint32_t)temperature; 1173 1174 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1175 "0406 Adapter maximum temperature exceeded " 1176 "(%ld), taking this port offline " 1177 "Data: x%x x%x x%x\n", 1178 temperature, phba->work_hs, 1179 phba->work_status[0], phba->work_status[1]); 1180 1181 shost = lpfc_shost_from_vport(phba->pport); 1182 fc_host_post_vendor_event(shost, fc_get_event_number(), 1183 sizeof(temp_event_data), 1184 (char *) &temp_event_data, 1185 SCSI_NL_VID_TYPE_PCI 1186 | PCI_VENDOR_ID_EMULEX); 1187 1188 spin_lock_irq(&phba->hbalock); 1189 phba->over_temp_state = HBA_OVER_TEMP; 1190 spin_unlock_irq(&phba->hbalock); 1191 lpfc_offline_eratt(phba); 1192 1193 } else { 1194 /* The if clause above forces this code path when the status 1195 * failure is a value other than FFER6. Do not call the offline 1196 * twice. This is the adapter hardware error path. 1197 */ 1198 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1199 "0457 Adapter Hardware Error " 1200 "Data: x%x x%x x%x\n", 1201 phba->work_hs, 1202 phba->work_status[0], phba->work_status[1]); 1203 1204 event_data = FC_REG_DUMP_EVENT; 1205 shost = lpfc_shost_from_vport(vport); 1206 fc_host_post_vendor_event(shost, fc_get_event_number(), 1207 sizeof(event_data), (char *) &event_data, 1208 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1209 1210 lpfc_offline_eratt(phba); 1211 } 1212 return; 1213 } 1214 1215 /** 1216 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1217 * @phba: pointer to lpfc hba data structure. 1218 * 1219 * This routine is invoked to handle the SLI4 HBA hardware error attention 1220 * conditions. 1221 **/ 1222 static void 1223 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1224 { 1225 struct lpfc_vport *vport = phba->pport; 1226 uint32_t event_data; 1227 struct Scsi_Host *shost; 1228 1229 /* If the pci channel is offline, ignore possible errors, since 1230 * we cannot communicate with the pci card anyway. 1231 */ 1232 if (pci_channel_offline(phba->pcidev)) 1233 return; 1234 /* If resets are disabled then leave the HBA alone and return */ 1235 if (!phba->cfg_enable_hba_reset) 1236 return; 1237 1238 /* Send an internal error event to mgmt application */ 1239 lpfc_board_errevt_to_mgmt(phba); 1240 1241 /* For now, the actual action for SLI4 device handling is not 1242 * specified yet, just treated it as adaptor hardware failure 1243 */ 1244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1245 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n", 1246 phba->work_status[0], phba->work_status[1]); 1247 1248 event_data = FC_REG_DUMP_EVENT; 1249 shost = lpfc_shost_from_vport(vport); 1250 fc_host_post_vendor_event(shost, fc_get_event_number(), 1251 sizeof(event_data), (char *) &event_data, 1252 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1253 1254 lpfc_sli4_offline_eratt(phba); 1255 } 1256 1257 /** 1258 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1259 * @phba: pointer to lpfc HBA data structure. 1260 * 1261 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1262 * routine from the API jump table function pointer from the lpfc_hba struct. 1263 * 1264 * Return codes 1265 * 0 - success. 1266 * Any other value - error. 1267 **/ 1268 void 1269 lpfc_handle_eratt(struct lpfc_hba *phba) 1270 { 1271 (*phba->lpfc_handle_eratt)(phba); 1272 } 1273 1274 /** 1275 * lpfc_handle_latt - The HBA link event handler 1276 * @phba: pointer to lpfc hba data structure. 1277 * 1278 * This routine is invoked from the worker thread to handle a HBA host 1279 * attention link event. 1280 **/ 1281 void 1282 lpfc_handle_latt(struct lpfc_hba *phba) 1283 { 1284 struct lpfc_vport *vport = phba->pport; 1285 struct lpfc_sli *psli = &phba->sli; 1286 LPFC_MBOXQ_t *pmb; 1287 volatile uint32_t control; 1288 struct lpfc_dmabuf *mp; 1289 int rc = 0; 1290 1291 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1292 if (!pmb) { 1293 rc = 1; 1294 goto lpfc_handle_latt_err_exit; 1295 } 1296 1297 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1298 if (!mp) { 1299 rc = 2; 1300 goto lpfc_handle_latt_free_pmb; 1301 } 1302 1303 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1304 if (!mp->virt) { 1305 rc = 3; 1306 goto lpfc_handle_latt_free_mp; 1307 } 1308 1309 /* Cleanup any outstanding ELS commands */ 1310 lpfc_els_flush_all_cmd(phba); 1311 1312 psli->slistat.link_event++; 1313 lpfc_read_la(phba, pmb, mp); 1314 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 1315 pmb->vport = vport; 1316 /* Block ELS IOCBs until we have processed this mbox command */ 1317 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1318 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1319 if (rc == MBX_NOT_FINISHED) { 1320 rc = 4; 1321 goto lpfc_handle_latt_free_mbuf; 1322 } 1323 1324 /* Clear Link Attention in HA REG */ 1325 spin_lock_irq(&phba->hbalock); 1326 writel(HA_LATT, phba->HAregaddr); 1327 readl(phba->HAregaddr); /* flush */ 1328 spin_unlock_irq(&phba->hbalock); 1329 1330 return; 1331 1332 lpfc_handle_latt_free_mbuf: 1333 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1334 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1335 lpfc_handle_latt_free_mp: 1336 kfree(mp); 1337 lpfc_handle_latt_free_pmb: 1338 mempool_free(pmb, phba->mbox_mem_pool); 1339 lpfc_handle_latt_err_exit: 1340 /* Enable Link attention interrupts */ 1341 spin_lock_irq(&phba->hbalock); 1342 psli->sli_flag |= LPFC_PROCESS_LA; 1343 control = readl(phba->HCregaddr); 1344 control |= HC_LAINT_ENA; 1345 writel(control, phba->HCregaddr); 1346 readl(phba->HCregaddr); /* flush */ 1347 1348 /* Clear Link Attention in HA REG */ 1349 writel(HA_LATT, phba->HAregaddr); 1350 readl(phba->HAregaddr); /* flush */ 1351 spin_unlock_irq(&phba->hbalock); 1352 lpfc_linkdown(phba); 1353 phba->link_state = LPFC_HBA_ERROR; 1354 1355 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1356 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1357 1358 return; 1359 } 1360 1361 /** 1362 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1363 * @phba: pointer to lpfc hba data structure. 1364 * @vpd: pointer to the vital product data. 1365 * @len: length of the vital product data in bytes. 1366 * 1367 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1368 * an array of characters. In this routine, the ModelName, ProgramType, and 1369 * ModelDesc, etc. fields of the phba data structure will be populated. 1370 * 1371 * Return codes 1372 * 0 - pointer to the VPD passed in is NULL 1373 * 1 - success 1374 **/ 1375 int 1376 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1377 { 1378 uint8_t lenlo, lenhi; 1379 int Length; 1380 int i, j; 1381 int finished = 0; 1382 int index = 0; 1383 1384 if (!vpd) 1385 return 0; 1386 1387 /* Vital Product */ 1388 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1389 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1390 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1391 (uint32_t) vpd[3]); 1392 while (!finished && (index < (len - 4))) { 1393 switch (vpd[index]) { 1394 case 0x82: 1395 case 0x91: 1396 index += 1; 1397 lenlo = vpd[index]; 1398 index += 1; 1399 lenhi = vpd[index]; 1400 index += 1; 1401 i = ((((unsigned short)lenhi) << 8) + lenlo); 1402 index += i; 1403 break; 1404 case 0x90: 1405 index += 1; 1406 lenlo = vpd[index]; 1407 index += 1; 1408 lenhi = vpd[index]; 1409 index += 1; 1410 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1411 if (Length > len - index) 1412 Length = len - index; 1413 while (Length > 0) { 1414 /* Look for Serial Number */ 1415 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1416 index += 2; 1417 i = vpd[index]; 1418 index += 1; 1419 j = 0; 1420 Length -= (3+i); 1421 while(i--) { 1422 phba->SerialNumber[j++] = vpd[index++]; 1423 if (j == 31) 1424 break; 1425 } 1426 phba->SerialNumber[j] = 0; 1427 continue; 1428 } 1429 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1430 phba->vpd_flag |= VPD_MODEL_DESC; 1431 index += 2; 1432 i = vpd[index]; 1433 index += 1; 1434 j = 0; 1435 Length -= (3+i); 1436 while(i--) { 1437 phba->ModelDesc[j++] = vpd[index++]; 1438 if (j == 255) 1439 break; 1440 } 1441 phba->ModelDesc[j] = 0; 1442 continue; 1443 } 1444 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1445 phba->vpd_flag |= VPD_MODEL_NAME; 1446 index += 2; 1447 i = vpd[index]; 1448 index += 1; 1449 j = 0; 1450 Length -= (3+i); 1451 while(i--) { 1452 phba->ModelName[j++] = vpd[index++]; 1453 if (j == 79) 1454 break; 1455 } 1456 phba->ModelName[j] = 0; 1457 continue; 1458 } 1459 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1460 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1461 index += 2; 1462 i = vpd[index]; 1463 index += 1; 1464 j = 0; 1465 Length -= (3+i); 1466 while(i--) { 1467 phba->ProgramType[j++] = vpd[index++]; 1468 if (j == 255) 1469 break; 1470 } 1471 phba->ProgramType[j] = 0; 1472 continue; 1473 } 1474 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1475 phba->vpd_flag |= VPD_PORT; 1476 index += 2; 1477 i = vpd[index]; 1478 index += 1; 1479 j = 0; 1480 Length -= (3+i); 1481 while(i--) { 1482 phba->Port[j++] = vpd[index++]; 1483 if (j == 19) 1484 break; 1485 } 1486 phba->Port[j] = 0; 1487 continue; 1488 } 1489 else { 1490 index += 2; 1491 i = vpd[index]; 1492 index += 1; 1493 index += i; 1494 Length -= (3 + i); 1495 } 1496 } 1497 finished = 0; 1498 break; 1499 case 0x78: 1500 finished = 1; 1501 break; 1502 default: 1503 index ++; 1504 break; 1505 } 1506 } 1507 1508 return(1); 1509 } 1510 1511 /** 1512 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1513 * @phba: pointer to lpfc hba data structure. 1514 * @mdp: pointer to the data structure to hold the derived model name. 1515 * @descp: pointer to the data structure to hold the derived description. 1516 * 1517 * This routine retrieves HBA's description based on its registered PCI device 1518 * ID. The @descp passed into this function points to an array of 256 chars. It 1519 * shall be returned with the model name, maximum speed, and the host bus type. 1520 * The @mdp passed into this function points to an array of 80 chars. When the 1521 * function returns, the @mdp will be filled with the model name. 1522 **/ 1523 static void 1524 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1525 { 1526 lpfc_vpd_t *vp; 1527 uint16_t dev_id = phba->pcidev->device; 1528 int max_speed; 1529 int GE = 0; 1530 int oneConnect = 0; /* default is not a oneConnect */ 1531 struct { 1532 char *name; 1533 char *bus; 1534 char *function; 1535 } m = {"<Unknown>", "", ""}; 1536 1537 if (mdp && mdp[0] != '\0' 1538 && descp && descp[0] != '\0') 1539 return; 1540 1541 if (phba->lmt & LMT_10Gb) 1542 max_speed = 10; 1543 else if (phba->lmt & LMT_8Gb) 1544 max_speed = 8; 1545 else if (phba->lmt & LMT_4Gb) 1546 max_speed = 4; 1547 else if (phba->lmt & LMT_2Gb) 1548 max_speed = 2; 1549 else 1550 max_speed = 1; 1551 1552 vp = &phba->vpd; 1553 1554 switch (dev_id) { 1555 case PCI_DEVICE_ID_FIREFLY: 1556 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1557 break; 1558 case PCI_DEVICE_ID_SUPERFLY: 1559 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1560 m = (typeof(m)){"LP7000", "PCI", 1561 "Fibre Channel Adapter"}; 1562 else 1563 m = (typeof(m)){"LP7000E", "PCI", 1564 "Fibre Channel Adapter"}; 1565 break; 1566 case PCI_DEVICE_ID_DRAGONFLY: 1567 m = (typeof(m)){"LP8000", "PCI", 1568 "Fibre Channel Adapter"}; 1569 break; 1570 case PCI_DEVICE_ID_CENTAUR: 1571 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1572 m = (typeof(m)){"LP9002", "PCI", 1573 "Fibre Channel Adapter"}; 1574 else 1575 m = (typeof(m)){"LP9000", "PCI", 1576 "Fibre Channel Adapter"}; 1577 break; 1578 case PCI_DEVICE_ID_RFLY: 1579 m = (typeof(m)){"LP952", "PCI", 1580 "Fibre Channel Adapter"}; 1581 break; 1582 case PCI_DEVICE_ID_PEGASUS: 1583 m = (typeof(m)){"LP9802", "PCI-X", 1584 "Fibre Channel Adapter"}; 1585 break; 1586 case PCI_DEVICE_ID_THOR: 1587 m = (typeof(m)){"LP10000", "PCI-X", 1588 "Fibre Channel Adapter"}; 1589 break; 1590 case PCI_DEVICE_ID_VIPER: 1591 m = (typeof(m)){"LPX1000", "PCI-X", 1592 "Fibre Channel Adapter"}; 1593 break; 1594 case PCI_DEVICE_ID_PFLY: 1595 m = (typeof(m)){"LP982", "PCI-X", 1596 "Fibre Channel Adapter"}; 1597 break; 1598 case PCI_DEVICE_ID_TFLY: 1599 m = (typeof(m)){"LP1050", "PCI-X", 1600 "Fibre Channel Adapter"}; 1601 break; 1602 case PCI_DEVICE_ID_HELIOS: 1603 m = (typeof(m)){"LP11000", "PCI-X2", 1604 "Fibre Channel Adapter"}; 1605 break; 1606 case PCI_DEVICE_ID_HELIOS_SCSP: 1607 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1608 "Fibre Channel Adapter"}; 1609 break; 1610 case PCI_DEVICE_ID_HELIOS_DCSP: 1611 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1612 "Fibre Channel Adapter"}; 1613 break; 1614 case PCI_DEVICE_ID_NEPTUNE: 1615 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1616 break; 1617 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1618 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1619 break; 1620 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1621 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1622 break; 1623 case PCI_DEVICE_ID_BMID: 1624 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1625 break; 1626 case PCI_DEVICE_ID_BSMB: 1627 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1628 break; 1629 case PCI_DEVICE_ID_ZEPHYR: 1630 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1631 break; 1632 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1633 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1634 break; 1635 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1636 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1637 GE = 1; 1638 break; 1639 case PCI_DEVICE_ID_ZMID: 1640 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1641 break; 1642 case PCI_DEVICE_ID_ZSMB: 1643 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1644 break; 1645 case PCI_DEVICE_ID_LP101: 1646 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1647 break; 1648 case PCI_DEVICE_ID_LP10000S: 1649 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1650 break; 1651 case PCI_DEVICE_ID_LP11000S: 1652 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 1653 break; 1654 case PCI_DEVICE_ID_LPE11000S: 1655 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 1656 break; 1657 case PCI_DEVICE_ID_SAT: 1658 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 1659 break; 1660 case PCI_DEVICE_ID_SAT_MID: 1661 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 1662 break; 1663 case PCI_DEVICE_ID_SAT_SMB: 1664 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 1665 break; 1666 case PCI_DEVICE_ID_SAT_DCSP: 1667 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 1668 break; 1669 case PCI_DEVICE_ID_SAT_SCSP: 1670 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 1671 break; 1672 case PCI_DEVICE_ID_SAT_S: 1673 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 1674 break; 1675 case PCI_DEVICE_ID_HORNET: 1676 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 1677 GE = 1; 1678 break; 1679 case PCI_DEVICE_ID_PROTEUS_VF: 1680 m = (typeof(m)){"LPev12000", "PCIe IOV", 1681 "Fibre Channel Adapter"}; 1682 break; 1683 case PCI_DEVICE_ID_PROTEUS_PF: 1684 m = (typeof(m)){"LPev12000", "PCIe IOV", 1685 "Fibre Channel Adapter"}; 1686 break; 1687 case PCI_DEVICE_ID_PROTEUS_S: 1688 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 1689 "Fibre Channel Adapter"}; 1690 break; 1691 case PCI_DEVICE_ID_TIGERSHARK: 1692 oneConnect = 1; 1693 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 1694 break; 1695 case PCI_DEVICE_ID_TOMCAT: 1696 oneConnect = 1; 1697 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 1698 break; 1699 case PCI_DEVICE_ID_FALCON: 1700 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 1701 "EmulexSecure Fibre"}; 1702 break; 1703 default: 1704 m = (typeof(m)){"Unknown", "", ""}; 1705 break; 1706 } 1707 1708 if (mdp && mdp[0] == '\0') 1709 snprintf(mdp, 79,"%s", m.name); 1710 /* oneConnect hba requires special processing, they are all initiators 1711 * and we put the port number on the end 1712 */ 1713 if (descp && descp[0] == '\0') { 1714 if (oneConnect) 1715 snprintf(descp, 255, 1716 "Emulex OneConnect %s, %s Initiator, Port %s", 1717 m.name, m.function, 1718 phba->Port); 1719 else 1720 snprintf(descp, 255, 1721 "Emulex %s %d%s %s %s", 1722 m.name, max_speed, (GE) ? "GE" : "Gb", 1723 m.bus, m.function); 1724 } 1725 } 1726 1727 /** 1728 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 1729 * @phba: pointer to lpfc hba data structure. 1730 * @pring: pointer to a IOCB ring. 1731 * @cnt: the number of IOCBs to be posted to the IOCB ring. 1732 * 1733 * This routine posts a given number of IOCBs with the associated DMA buffer 1734 * descriptors specified by the cnt argument to the given IOCB ring. 1735 * 1736 * Return codes 1737 * The number of IOCBs NOT able to be posted to the IOCB ring. 1738 **/ 1739 int 1740 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 1741 { 1742 IOCB_t *icmd; 1743 struct lpfc_iocbq *iocb; 1744 struct lpfc_dmabuf *mp1, *mp2; 1745 1746 cnt += pring->missbufcnt; 1747 1748 /* While there are buffers to post */ 1749 while (cnt > 0) { 1750 /* Allocate buffer for command iocb */ 1751 iocb = lpfc_sli_get_iocbq(phba); 1752 if (iocb == NULL) { 1753 pring->missbufcnt = cnt; 1754 return cnt; 1755 } 1756 icmd = &iocb->iocb; 1757 1758 /* 2 buffers can be posted per command */ 1759 /* Allocate buffer to post */ 1760 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1761 if (mp1) 1762 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 1763 if (!mp1 || !mp1->virt) { 1764 kfree(mp1); 1765 lpfc_sli_release_iocbq(phba, iocb); 1766 pring->missbufcnt = cnt; 1767 return cnt; 1768 } 1769 1770 INIT_LIST_HEAD(&mp1->list); 1771 /* Allocate buffer to post */ 1772 if (cnt > 1) { 1773 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1774 if (mp2) 1775 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1776 &mp2->phys); 1777 if (!mp2 || !mp2->virt) { 1778 kfree(mp2); 1779 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1780 kfree(mp1); 1781 lpfc_sli_release_iocbq(phba, iocb); 1782 pring->missbufcnt = cnt; 1783 return cnt; 1784 } 1785 1786 INIT_LIST_HEAD(&mp2->list); 1787 } else { 1788 mp2 = NULL; 1789 } 1790 1791 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1792 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1793 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1794 icmd->ulpBdeCount = 1; 1795 cnt--; 1796 if (mp2) { 1797 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1798 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1799 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1800 cnt--; 1801 icmd->ulpBdeCount = 2; 1802 } 1803 1804 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1805 icmd->ulpLe = 1; 1806 1807 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 1808 IOCB_ERROR) { 1809 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1810 kfree(mp1); 1811 cnt++; 1812 if (mp2) { 1813 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1814 kfree(mp2); 1815 cnt++; 1816 } 1817 lpfc_sli_release_iocbq(phba, iocb); 1818 pring->missbufcnt = cnt; 1819 return cnt; 1820 } 1821 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1822 if (mp2) 1823 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1824 } 1825 pring->missbufcnt = 0; 1826 return 0; 1827 } 1828 1829 /** 1830 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 1831 * @phba: pointer to lpfc hba data structure. 1832 * 1833 * This routine posts initial receive IOCB buffers to the ELS ring. The 1834 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 1835 * set to 64 IOCBs. 1836 * 1837 * Return codes 1838 * 0 - success (currently always success) 1839 **/ 1840 static int 1841 lpfc_post_rcv_buf(struct lpfc_hba *phba) 1842 { 1843 struct lpfc_sli *psli = &phba->sli; 1844 1845 /* Ring 0, ELS / CT buffers */ 1846 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 1847 /* Ring 2 - FCP no buffers needed */ 1848 1849 return 0; 1850 } 1851 1852 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 1853 1854 /** 1855 * lpfc_sha_init - Set up initial array of hash table entries 1856 * @HashResultPointer: pointer to an array as hash table. 1857 * 1858 * This routine sets up the initial values to the array of hash table entries 1859 * for the LC HBAs. 1860 **/ 1861 static void 1862 lpfc_sha_init(uint32_t * HashResultPointer) 1863 { 1864 HashResultPointer[0] = 0x67452301; 1865 HashResultPointer[1] = 0xEFCDAB89; 1866 HashResultPointer[2] = 0x98BADCFE; 1867 HashResultPointer[3] = 0x10325476; 1868 HashResultPointer[4] = 0xC3D2E1F0; 1869 } 1870 1871 /** 1872 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 1873 * @HashResultPointer: pointer to an initial/result hash table. 1874 * @HashWorkingPointer: pointer to an working hash table. 1875 * 1876 * This routine iterates an initial hash table pointed by @HashResultPointer 1877 * with the values from the working hash table pointeed by @HashWorkingPointer. 1878 * The results are putting back to the initial hash table, returned through 1879 * the @HashResultPointer as the result hash table. 1880 **/ 1881 static void 1882 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 1883 { 1884 int t; 1885 uint32_t TEMP; 1886 uint32_t A, B, C, D, E; 1887 t = 16; 1888 do { 1889 HashWorkingPointer[t] = 1890 S(1, 1891 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 1892 8] ^ 1893 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 1894 } while (++t <= 79); 1895 t = 0; 1896 A = HashResultPointer[0]; 1897 B = HashResultPointer[1]; 1898 C = HashResultPointer[2]; 1899 D = HashResultPointer[3]; 1900 E = HashResultPointer[4]; 1901 1902 do { 1903 if (t < 20) { 1904 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 1905 } else if (t < 40) { 1906 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 1907 } else if (t < 60) { 1908 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 1909 } else { 1910 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 1911 } 1912 TEMP += S(5, A) + E + HashWorkingPointer[t]; 1913 E = D; 1914 D = C; 1915 C = S(30, B); 1916 B = A; 1917 A = TEMP; 1918 } while (++t <= 79); 1919 1920 HashResultPointer[0] += A; 1921 HashResultPointer[1] += B; 1922 HashResultPointer[2] += C; 1923 HashResultPointer[3] += D; 1924 HashResultPointer[4] += E; 1925 1926 } 1927 1928 /** 1929 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 1930 * @RandomChallenge: pointer to the entry of host challenge random number array. 1931 * @HashWorking: pointer to the entry of the working hash array. 1932 * 1933 * This routine calculates the working hash array referred by @HashWorking 1934 * from the challenge random numbers associated with the host, referred by 1935 * @RandomChallenge. The result is put into the entry of the working hash 1936 * array and returned by reference through @HashWorking. 1937 **/ 1938 static void 1939 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 1940 { 1941 *HashWorking = (*RandomChallenge ^ *HashWorking); 1942 } 1943 1944 /** 1945 * lpfc_hba_init - Perform special handling for LC HBA initialization 1946 * @phba: pointer to lpfc hba data structure. 1947 * @hbainit: pointer to an array of unsigned 32-bit integers. 1948 * 1949 * This routine performs the special handling for LC HBA initialization. 1950 **/ 1951 void 1952 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 1953 { 1954 int t; 1955 uint32_t *HashWorking; 1956 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 1957 1958 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 1959 if (!HashWorking) 1960 return; 1961 1962 HashWorking[0] = HashWorking[78] = *pwwnn++; 1963 HashWorking[1] = HashWorking[79] = *pwwnn; 1964 1965 for (t = 0; t < 7; t++) 1966 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 1967 1968 lpfc_sha_init(hbainit); 1969 lpfc_sha_iterate(hbainit, HashWorking); 1970 kfree(HashWorking); 1971 } 1972 1973 /** 1974 * lpfc_cleanup - Performs vport cleanups before deleting a vport 1975 * @vport: pointer to a virtual N_Port data structure. 1976 * 1977 * This routine performs the necessary cleanups before deleting the @vport. 1978 * It invokes the discovery state machine to perform necessary state 1979 * transitions and to release the ndlps associated with the @vport. Note, 1980 * the physical port is treated as @vport 0. 1981 **/ 1982 void 1983 lpfc_cleanup(struct lpfc_vport *vport) 1984 { 1985 struct lpfc_hba *phba = vport->phba; 1986 struct lpfc_nodelist *ndlp, *next_ndlp; 1987 int i = 0; 1988 1989 if (phba->link_state > LPFC_LINK_DOWN) 1990 lpfc_port_link_failure(vport); 1991 1992 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 1993 if (!NLP_CHK_NODE_ACT(ndlp)) { 1994 ndlp = lpfc_enable_node(vport, ndlp, 1995 NLP_STE_UNUSED_NODE); 1996 if (!ndlp) 1997 continue; 1998 spin_lock_irq(&phba->ndlp_lock); 1999 NLP_SET_FREE_REQ(ndlp); 2000 spin_unlock_irq(&phba->ndlp_lock); 2001 /* Trigger the release of the ndlp memory */ 2002 lpfc_nlp_put(ndlp); 2003 continue; 2004 } 2005 spin_lock_irq(&phba->ndlp_lock); 2006 if (NLP_CHK_FREE_REQ(ndlp)) { 2007 /* The ndlp should not be in memory free mode already */ 2008 spin_unlock_irq(&phba->ndlp_lock); 2009 continue; 2010 } else 2011 /* Indicate request for freeing ndlp memory */ 2012 NLP_SET_FREE_REQ(ndlp); 2013 spin_unlock_irq(&phba->ndlp_lock); 2014 2015 if (vport->port_type != LPFC_PHYSICAL_PORT && 2016 ndlp->nlp_DID == Fabric_DID) { 2017 /* Just free up ndlp with Fabric_DID for vports */ 2018 lpfc_nlp_put(ndlp); 2019 continue; 2020 } 2021 2022 if (ndlp->nlp_type & NLP_FABRIC) 2023 lpfc_disc_state_machine(vport, ndlp, NULL, 2024 NLP_EVT_DEVICE_RECOVERY); 2025 2026 lpfc_disc_state_machine(vport, ndlp, NULL, 2027 NLP_EVT_DEVICE_RM); 2028 2029 } 2030 2031 /* At this point, ALL ndlp's should be gone 2032 * because of the previous NLP_EVT_DEVICE_RM. 2033 * Lets wait for this to happen, if needed. 2034 */ 2035 while (!list_empty(&vport->fc_nodes)) { 2036 if (i++ > 3000) { 2037 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2038 "0233 Nodelist not empty\n"); 2039 list_for_each_entry_safe(ndlp, next_ndlp, 2040 &vport->fc_nodes, nlp_listp) { 2041 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2042 LOG_NODE, 2043 "0282 did:x%x ndlp:x%p " 2044 "usgmap:x%x refcnt:%d\n", 2045 ndlp->nlp_DID, (void *)ndlp, 2046 ndlp->nlp_usg_map, 2047 atomic_read( 2048 &ndlp->kref.refcount)); 2049 } 2050 break; 2051 } 2052 2053 /* Wait for any activity on ndlps to settle */ 2054 msleep(10); 2055 } 2056 } 2057 2058 /** 2059 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2060 * @vport: pointer to a virtual N_Port data structure. 2061 * 2062 * This routine stops all the timers associated with a @vport. This function 2063 * is invoked before disabling or deleting a @vport. Note that the physical 2064 * port is treated as @vport 0. 2065 **/ 2066 void 2067 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2068 { 2069 del_timer_sync(&vport->els_tmofunc); 2070 del_timer_sync(&vport->fc_fdmitmo); 2071 lpfc_can_disctmo(vport); 2072 return; 2073 } 2074 2075 /** 2076 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2077 * @phba: pointer to lpfc hba data structure. 2078 * 2079 * This routine stops all the timers associated with a HBA. This function is 2080 * invoked before either putting a HBA offline or unloading the driver. 2081 **/ 2082 void 2083 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2084 { 2085 lpfc_stop_vport_timers(phba->pport); 2086 del_timer_sync(&phba->sli.mbox_tmo); 2087 del_timer_sync(&phba->fabric_block_timer); 2088 del_timer_sync(&phba->eratt_poll); 2089 del_timer_sync(&phba->hb_tmofunc); 2090 phba->hb_outstanding = 0; 2091 2092 switch (phba->pci_dev_grp) { 2093 case LPFC_PCI_DEV_LP: 2094 /* Stop any LightPulse device specific driver timers */ 2095 del_timer_sync(&phba->fcp_poll_timer); 2096 break; 2097 case LPFC_PCI_DEV_OC: 2098 /* Stop any OneConnect device sepcific driver timers */ 2099 break; 2100 default: 2101 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2102 "0297 Invalid device group (x%x)\n", 2103 phba->pci_dev_grp); 2104 break; 2105 } 2106 return; 2107 } 2108 2109 /** 2110 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2111 * @phba: pointer to lpfc hba data structure. 2112 * 2113 * This routine marks a HBA's management interface as blocked. Once the HBA's 2114 * management interface is marked as blocked, all the user space access to 2115 * the HBA, whether they are from sysfs interface or libdfc interface will 2116 * all be blocked. The HBA is set to block the management interface when the 2117 * driver prepares the HBA interface for online or offline. 2118 **/ 2119 static void 2120 lpfc_block_mgmt_io(struct lpfc_hba * phba) 2121 { 2122 unsigned long iflag; 2123 2124 spin_lock_irqsave(&phba->hbalock, iflag); 2125 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2126 spin_unlock_irqrestore(&phba->hbalock, iflag); 2127 } 2128 2129 /** 2130 * lpfc_online - Initialize and bring a HBA online 2131 * @phba: pointer to lpfc hba data structure. 2132 * 2133 * This routine initializes the HBA and brings a HBA online. During this 2134 * process, the management interface is blocked to prevent user space access 2135 * to the HBA interfering with the driver initialization. 2136 * 2137 * Return codes 2138 * 0 - successful 2139 * 1 - failed 2140 **/ 2141 int 2142 lpfc_online(struct lpfc_hba *phba) 2143 { 2144 struct lpfc_vport *vport; 2145 struct lpfc_vport **vports; 2146 int i; 2147 2148 if (!phba) 2149 return 0; 2150 vport = phba->pport; 2151 2152 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2153 return 0; 2154 2155 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2156 "0458 Bring Adapter online\n"); 2157 2158 lpfc_block_mgmt_io(phba); 2159 2160 if (!lpfc_sli_queue_setup(phba)) { 2161 lpfc_unblock_mgmt_io(phba); 2162 return 1; 2163 } 2164 2165 if (phba->sli_rev == LPFC_SLI_REV4) { 2166 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2167 lpfc_unblock_mgmt_io(phba); 2168 return 1; 2169 } 2170 } else { 2171 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2172 lpfc_unblock_mgmt_io(phba); 2173 return 1; 2174 } 2175 } 2176 2177 vports = lpfc_create_vport_work_array(phba); 2178 if (vports != NULL) 2179 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2180 struct Scsi_Host *shost; 2181 shost = lpfc_shost_from_vport(vports[i]); 2182 spin_lock_irq(shost->host_lock); 2183 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2184 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2185 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2186 if (phba->sli_rev == LPFC_SLI_REV4) 2187 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2188 spin_unlock_irq(shost->host_lock); 2189 } 2190 lpfc_destroy_vport_work_array(phba, vports); 2191 2192 lpfc_unblock_mgmt_io(phba); 2193 return 0; 2194 } 2195 2196 /** 2197 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2198 * @phba: pointer to lpfc hba data structure. 2199 * 2200 * This routine marks a HBA's management interface as not blocked. Once the 2201 * HBA's management interface is marked as not blocked, all the user space 2202 * access to the HBA, whether they are from sysfs interface or libdfc 2203 * interface will be allowed. The HBA is set to block the management interface 2204 * when the driver prepares the HBA interface for online or offline and then 2205 * set to unblock the management interface afterwards. 2206 **/ 2207 void 2208 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2209 { 2210 unsigned long iflag; 2211 2212 spin_lock_irqsave(&phba->hbalock, iflag); 2213 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2214 spin_unlock_irqrestore(&phba->hbalock, iflag); 2215 } 2216 2217 /** 2218 * lpfc_offline_prep - Prepare a HBA to be brought offline 2219 * @phba: pointer to lpfc hba data structure. 2220 * 2221 * This routine is invoked to prepare a HBA to be brought offline. It performs 2222 * unregistration login to all the nodes on all vports and flushes the mailbox 2223 * queue to make it ready to be brought offline. 2224 **/ 2225 void 2226 lpfc_offline_prep(struct lpfc_hba * phba) 2227 { 2228 struct lpfc_vport *vport = phba->pport; 2229 struct lpfc_nodelist *ndlp, *next_ndlp; 2230 struct lpfc_vport **vports; 2231 int i; 2232 2233 if (vport->fc_flag & FC_OFFLINE_MODE) 2234 return; 2235 2236 lpfc_block_mgmt_io(phba); 2237 2238 lpfc_linkdown(phba); 2239 2240 /* Issue an unreg_login to all nodes on all vports */ 2241 vports = lpfc_create_vport_work_array(phba); 2242 if (vports != NULL) { 2243 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2244 struct Scsi_Host *shost; 2245 2246 if (vports[i]->load_flag & FC_UNLOADING) 2247 continue; 2248 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2249 shost = lpfc_shost_from_vport(vports[i]); 2250 list_for_each_entry_safe(ndlp, next_ndlp, 2251 &vports[i]->fc_nodes, 2252 nlp_listp) { 2253 if (!NLP_CHK_NODE_ACT(ndlp)) 2254 continue; 2255 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2256 continue; 2257 if (ndlp->nlp_type & NLP_FABRIC) { 2258 lpfc_disc_state_machine(vports[i], ndlp, 2259 NULL, NLP_EVT_DEVICE_RECOVERY); 2260 lpfc_disc_state_machine(vports[i], ndlp, 2261 NULL, NLP_EVT_DEVICE_RM); 2262 } 2263 spin_lock_irq(shost->host_lock); 2264 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2265 spin_unlock_irq(shost->host_lock); 2266 lpfc_unreg_rpi(vports[i], ndlp); 2267 } 2268 } 2269 } 2270 lpfc_destroy_vport_work_array(phba, vports); 2271 2272 lpfc_sli_mbox_sys_shutdown(phba); 2273 } 2274 2275 /** 2276 * lpfc_offline - Bring a HBA offline 2277 * @phba: pointer to lpfc hba data structure. 2278 * 2279 * This routine actually brings a HBA offline. It stops all the timers 2280 * associated with the HBA, brings down the SLI layer, and eventually 2281 * marks the HBA as in offline state for the upper layer protocol. 2282 **/ 2283 void 2284 lpfc_offline(struct lpfc_hba *phba) 2285 { 2286 struct Scsi_Host *shost; 2287 struct lpfc_vport **vports; 2288 int i; 2289 2290 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2291 return; 2292 2293 /* stop port and all timers associated with this hba */ 2294 lpfc_stop_port(phba); 2295 vports = lpfc_create_vport_work_array(phba); 2296 if (vports != NULL) 2297 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2298 lpfc_stop_vport_timers(vports[i]); 2299 lpfc_destroy_vport_work_array(phba, vports); 2300 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2301 "0460 Bring Adapter offline\n"); 2302 /* Bring down the SLI Layer and cleanup. The HBA is offline 2303 now. */ 2304 lpfc_sli_hba_down(phba); 2305 spin_lock_irq(&phba->hbalock); 2306 phba->work_ha = 0; 2307 spin_unlock_irq(&phba->hbalock); 2308 vports = lpfc_create_vport_work_array(phba); 2309 if (vports != NULL) 2310 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2311 shost = lpfc_shost_from_vport(vports[i]); 2312 spin_lock_irq(shost->host_lock); 2313 vports[i]->work_port_events = 0; 2314 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2315 spin_unlock_irq(shost->host_lock); 2316 } 2317 lpfc_destroy_vport_work_array(phba, vports); 2318 } 2319 2320 /** 2321 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2322 * @phba: pointer to lpfc hba data structure. 2323 * 2324 * This routine is to free all the SCSI buffers and IOCBs from the driver 2325 * list back to kernel. It is called from lpfc_pci_remove_one to free 2326 * the internal resources before the device is removed from the system. 2327 * 2328 * Return codes 2329 * 0 - successful (for now, it always returns 0) 2330 **/ 2331 static int 2332 lpfc_scsi_free(struct lpfc_hba *phba) 2333 { 2334 struct lpfc_scsi_buf *sb, *sb_next; 2335 struct lpfc_iocbq *io, *io_next; 2336 2337 spin_lock_irq(&phba->hbalock); 2338 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2339 spin_lock(&phba->scsi_buf_list_lock); 2340 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2341 list_del(&sb->list); 2342 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2343 sb->dma_handle); 2344 kfree(sb); 2345 phba->total_scsi_bufs--; 2346 } 2347 spin_unlock(&phba->scsi_buf_list_lock); 2348 2349 /* Release all the lpfc_iocbq entries maintained by this host. */ 2350 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2351 list_del(&io->list); 2352 kfree(io); 2353 phba->total_iocbq_bufs--; 2354 } 2355 spin_unlock_irq(&phba->hbalock); 2356 return 0; 2357 } 2358 2359 /** 2360 * lpfc_create_port - Create an FC port 2361 * @phba: pointer to lpfc hba data structure. 2362 * @instance: a unique integer ID to this FC port. 2363 * @dev: pointer to the device data structure. 2364 * 2365 * This routine creates a FC port for the upper layer protocol. The FC port 2366 * can be created on top of either a physical port or a virtual port provided 2367 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2368 * and associates the FC port created before adding the shost into the SCSI 2369 * layer. 2370 * 2371 * Return codes 2372 * @vport - pointer to the virtual N_Port data structure. 2373 * NULL - port create failed. 2374 **/ 2375 struct lpfc_vport * 2376 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2377 { 2378 struct lpfc_vport *vport; 2379 struct Scsi_Host *shost; 2380 int error = 0; 2381 2382 if (dev != &phba->pcidev->dev) 2383 shost = scsi_host_alloc(&lpfc_vport_template, 2384 sizeof(struct lpfc_vport)); 2385 else 2386 shost = scsi_host_alloc(&lpfc_template, 2387 sizeof(struct lpfc_vport)); 2388 if (!shost) 2389 goto out; 2390 2391 vport = (struct lpfc_vport *) shost->hostdata; 2392 vport->phba = phba; 2393 vport->load_flag |= FC_LOADING; 2394 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2395 vport->fc_rscn_flush = 0; 2396 2397 lpfc_get_vport_cfgparam(vport); 2398 shost->unique_id = instance; 2399 shost->max_id = LPFC_MAX_TARGET; 2400 shost->max_lun = vport->cfg_max_luns; 2401 shost->this_id = -1; 2402 shost->max_cmd_len = 16; 2403 if (phba->sli_rev == LPFC_SLI_REV4) { 2404 shost->dma_boundary = LPFC_SLI4_MAX_SEGMENT_SIZE; 2405 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2406 } 2407 2408 /* 2409 * Set initial can_queue value since 0 is no longer supported and 2410 * scsi_add_host will fail. This will be adjusted later based on the 2411 * max xri value determined in hba setup. 2412 */ 2413 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2414 if (dev != &phba->pcidev->dev) { 2415 shost->transportt = lpfc_vport_transport_template; 2416 vport->port_type = LPFC_NPIV_PORT; 2417 } else { 2418 shost->transportt = lpfc_transport_template; 2419 vport->port_type = LPFC_PHYSICAL_PORT; 2420 } 2421 2422 /* Initialize all internally managed lists. */ 2423 INIT_LIST_HEAD(&vport->fc_nodes); 2424 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2425 spin_lock_init(&vport->work_port_lock); 2426 2427 init_timer(&vport->fc_disctmo); 2428 vport->fc_disctmo.function = lpfc_disc_timeout; 2429 vport->fc_disctmo.data = (unsigned long)vport; 2430 2431 init_timer(&vport->fc_fdmitmo); 2432 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2433 vport->fc_fdmitmo.data = (unsigned long)vport; 2434 2435 init_timer(&vport->els_tmofunc); 2436 vport->els_tmofunc.function = lpfc_els_timeout; 2437 vport->els_tmofunc.data = (unsigned long)vport; 2438 2439 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 2440 if (error) 2441 goto out_put_shost; 2442 2443 spin_lock_irq(&phba->hbalock); 2444 list_add_tail(&vport->listentry, &phba->port_list); 2445 spin_unlock_irq(&phba->hbalock); 2446 return vport; 2447 2448 out_put_shost: 2449 scsi_host_put(shost); 2450 out: 2451 return NULL; 2452 } 2453 2454 /** 2455 * destroy_port - destroy an FC port 2456 * @vport: pointer to an lpfc virtual N_Port data structure. 2457 * 2458 * This routine destroys a FC port from the upper layer protocol. All the 2459 * resources associated with the port are released. 2460 **/ 2461 void 2462 destroy_port(struct lpfc_vport *vport) 2463 { 2464 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2465 struct lpfc_hba *phba = vport->phba; 2466 2467 lpfc_debugfs_terminate(vport); 2468 fc_remove_host(shost); 2469 scsi_remove_host(shost); 2470 2471 spin_lock_irq(&phba->hbalock); 2472 list_del_init(&vport->listentry); 2473 spin_unlock_irq(&phba->hbalock); 2474 2475 lpfc_cleanup(vport); 2476 return; 2477 } 2478 2479 /** 2480 * lpfc_get_instance - Get a unique integer ID 2481 * 2482 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2483 * uses the kernel idr facility to perform the task. 2484 * 2485 * Return codes: 2486 * instance - a unique integer ID allocated as the new instance. 2487 * -1 - lpfc get instance failed. 2488 **/ 2489 int 2490 lpfc_get_instance(void) 2491 { 2492 int instance = 0; 2493 2494 /* Assign an unused number */ 2495 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2496 return -1; 2497 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2498 return -1; 2499 return instance; 2500 } 2501 2502 /** 2503 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2504 * @shost: pointer to SCSI host data structure. 2505 * @time: elapsed time of the scan in jiffies. 2506 * 2507 * This routine is called by the SCSI layer with a SCSI host to determine 2508 * whether the scan host is finished. 2509 * 2510 * Note: there is no scan_start function as adapter initialization will have 2511 * asynchronously kicked off the link initialization. 2512 * 2513 * Return codes 2514 * 0 - SCSI host scan is not over yet. 2515 * 1 - SCSI host scan is over. 2516 **/ 2517 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2518 { 2519 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2520 struct lpfc_hba *phba = vport->phba; 2521 int stat = 0; 2522 2523 spin_lock_irq(shost->host_lock); 2524 2525 if (vport->load_flag & FC_UNLOADING) { 2526 stat = 1; 2527 goto finished; 2528 } 2529 if (time >= 30 * HZ) { 2530 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2531 "0461 Scanning longer than 30 " 2532 "seconds. Continuing initialization\n"); 2533 stat = 1; 2534 goto finished; 2535 } 2536 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2537 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2538 "0465 Link down longer than 15 " 2539 "seconds. Continuing initialization\n"); 2540 stat = 1; 2541 goto finished; 2542 } 2543 2544 if (vport->port_state != LPFC_VPORT_READY) 2545 goto finished; 2546 if (vport->num_disc_nodes || vport->fc_prli_sent) 2547 goto finished; 2548 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2549 goto finished; 2550 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2551 goto finished; 2552 2553 stat = 1; 2554 2555 finished: 2556 spin_unlock_irq(shost->host_lock); 2557 return stat; 2558 } 2559 2560 /** 2561 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 2562 * @shost: pointer to SCSI host data structure. 2563 * 2564 * This routine initializes a given SCSI host attributes on a FC port. The 2565 * SCSI host can be either on top of a physical port or a virtual port. 2566 **/ 2567 void lpfc_host_attrib_init(struct Scsi_Host *shost) 2568 { 2569 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2570 struct lpfc_hba *phba = vport->phba; 2571 /* 2572 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2573 */ 2574 2575 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2576 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2577 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2578 2579 memset(fc_host_supported_fc4s(shost), 0, 2580 sizeof(fc_host_supported_fc4s(shost))); 2581 fc_host_supported_fc4s(shost)[2] = 1; 2582 fc_host_supported_fc4s(shost)[7] = 1; 2583 2584 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2585 sizeof fc_host_symbolic_name(shost)); 2586 2587 fc_host_supported_speeds(shost) = 0; 2588 if (phba->lmt & LMT_10Gb) 2589 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2590 if (phba->lmt & LMT_8Gb) 2591 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2592 if (phba->lmt & LMT_4Gb) 2593 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2594 if (phba->lmt & LMT_2Gb) 2595 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2596 if (phba->lmt & LMT_1Gb) 2597 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2598 2599 fc_host_maxframe_size(shost) = 2600 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2601 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2602 2603 /* This value is also unchanging */ 2604 memset(fc_host_active_fc4s(shost), 0, 2605 sizeof(fc_host_active_fc4s(shost))); 2606 fc_host_active_fc4s(shost)[2] = 1; 2607 fc_host_active_fc4s(shost)[7] = 1; 2608 2609 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2610 spin_lock_irq(shost->host_lock); 2611 vport->load_flag &= ~FC_LOADING; 2612 spin_unlock_irq(shost->host_lock); 2613 } 2614 2615 /** 2616 * lpfc_stop_port_s3 - Stop SLI3 device port 2617 * @phba: pointer to lpfc hba data structure. 2618 * 2619 * This routine is invoked to stop an SLI3 device port, it stops the device 2620 * from generating interrupts and stops the device driver's timers for the 2621 * device. 2622 **/ 2623 static void 2624 lpfc_stop_port_s3(struct lpfc_hba *phba) 2625 { 2626 /* Clear all interrupt enable conditions */ 2627 writel(0, phba->HCregaddr); 2628 readl(phba->HCregaddr); /* flush */ 2629 /* Clear all pending interrupts */ 2630 writel(0xffffffff, phba->HAregaddr); 2631 readl(phba->HAregaddr); /* flush */ 2632 2633 /* Reset some HBA SLI setup states */ 2634 lpfc_stop_hba_timers(phba); 2635 phba->pport->work_port_events = 0; 2636 } 2637 2638 /** 2639 * lpfc_stop_port_s4 - Stop SLI4 device port 2640 * @phba: pointer to lpfc hba data structure. 2641 * 2642 * This routine is invoked to stop an SLI4 device port, it stops the device 2643 * from generating interrupts and stops the device driver's timers for the 2644 * device. 2645 **/ 2646 static void 2647 lpfc_stop_port_s4(struct lpfc_hba *phba) 2648 { 2649 /* Reset some HBA SLI4 setup states */ 2650 lpfc_stop_hba_timers(phba); 2651 phba->pport->work_port_events = 0; 2652 phba->sli4_hba.intr_enable = 0; 2653 /* Hard clear it for now, shall have more graceful way to wait later */ 2654 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 2655 } 2656 2657 /** 2658 * lpfc_stop_port - Wrapper function for stopping hba port 2659 * @phba: Pointer to HBA context object. 2660 * 2661 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 2662 * the API jump table function pointer from the lpfc_hba struct. 2663 **/ 2664 void 2665 lpfc_stop_port(struct lpfc_hba *phba) 2666 { 2667 phba->lpfc_stop_port(phba); 2668 } 2669 2670 /** 2671 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port. 2672 * @phba: pointer to lpfc hba data structure. 2673 * 2674 * This routine is invoked to remove the driver default fcf record from 2675 * the port. This routine currently acts on FCF Index 0. 2676 * 2677 **/ 2678 void 2679 lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba) 2680 { 2681 int rc = 0; 2682 LPFC_MBOXQ_t *mboxq; 2683 struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record; 2684 uint32_t mbox_tmo, req_len; 2685 uint32_t shdr_status, shdr_add_status; 2686 2687 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2688 if (!mboxq) { 2689 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2690 "2020 Failed to allocate mbox for ADD_FCF cmd\n"); 2691 return; 2692 } 2693 2694 req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) - 2695 sizeof(struct lpfc_sli4_cfg_mhdr); 2696 rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, 2697 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF, 2698 req_len, LPFC_SLI4_MBX_EMBED); 2699 /* 2700 * In phase 1, there is a single FCF index, 0. In phase2, the driver 2701 * supports multiple FCF indices. 2702 */ 2703 del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry; 2704 bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1); 2705 bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record, 2706 phba->fcf.fcf_indx); 2707 2708 if (!phba->sli4_hba.intr_enable) 2709 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 2710 else { 2711 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 2712 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 2713 } 2714 /* The IOCTL status is embedded in the mailbox subheader. */ 2715 shdr_status = bf_get(lpfc_mbox_hdr_status, 2716 &del_fcf_record->header.cfg_shdr.response); 2717 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 2718 &del_fcf_record->header.cfg_shdr.response); 2719 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 2720 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2721 "2516 DEL FCF of default FCF Index failed " 2722 "mbx status x%x, status x%x add_status x%x\n", 2723 rc, shdr_status, shdr_add_status); 2724 } 2725 if (rc != MBX_TIMEOUT) 2726 mempool_free(mboxq, phba->mbox_mem_pool); 2727 } 2728 2729 /** 2730 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support 2731 * @phba: pointer to lpfc hba data structure. 2732 * 2733 * This function uses the QUERY_FW_CFG mailbox command to determine if the 2734 * firmware loaded supports FCoE. A return of zero indicates that the mailbox 2735 * was successful and the firmware supports FCoE. Any other return indicates 2736 * a error. It is assumed that this function will be called before interrupts 2737 * are enabled. 2738 **/ 2739 static int 2740 lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba) 2741 { 2742 int rc = 0; 2743 LPFC_MBOXQ_t *mboxq; 2744 struct lpfc_mbx_query_fw_cfg *query_fw_cfg; 2745 uint32_t length; 2746 uint32_t shdr_status, shdr_add_status; 2747 2748 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2749 if (!mboxq) { 2750 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2751 "2621 Failed to allocate mbox for " 2752 "query firmware config cmd\n"); 2753 return -ENOMEM; 2754 } 2755 query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg; 2756 length = (sizeof(struct lpfc_mbx_query_fw_cfg) - 2757 sizeof(struct lpfc_sli4_cfg_mhdr)); 2758 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 2759 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 2760 length, LPFC_SLI4_MBX_EMBED); 2761 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 2762 /* The IOCTL status is embedded in the mailbox subheader. */ 2763 shdr_status = bf_get(lpfc_mbox_hdr_status, 2764 &query_fw_cfg->header.cfg_shdr.response); 2765 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 2766 &query_fw_cfg->header.cfg_shdr.response); 2767 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 2768 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2769 "2622 Query Firmware Config failed " 2770 "mbx status x%x, status x%x add_status x%x\n", 2771 rc, shdr_status, shdr_add_status); 2772 return -EINVAL; 2773 } 2774 if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) { 2775 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2776 "2623 FCoE Function not supported by firmware. " 2777 "Function mode = %08x\n", 2778 query_fw_cfg->function_mode); 2779 return -EINVAL; 2780 } 2781 if (rc != MBX_TIMEOUT) 2782 mempool_free(mboxq, phba->mbox_mem_pool); 2783 return 0; 2784 } 2785 2786 /** 2787 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 2788 * @phba: pointer to lpfc hba data structure. 2789 * @acqe_link: pointer to the async link completion queue entry. 2790 * 2791 * This routine is to parse the SLI4 link-attention link fault code and 2792 * translate it into the base driver's read link attention mailbox command 2793 * status. 2794 * 2795 * Return: Link-attention status in terms of base driver's coding. 2796 **/ 2797 static uint16_t 2798 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 2799 struct lpfc_acqe_link *acqe_link) 2800 { 2801 uint16_t latt_fault; 2802 2803 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 2804 case LPFC_ASYNC_LINK_FAULT_NONE: 2805 case LPFC_ASYNC_LINK_FAULT_LOCAL: 2806 case LPFC_ASYNC_LINK_FAULT_REMOTE: 2807 latt_fault = 0; 2808 break; 2809 default: 2810 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2811 "0398 Invalid link fault code: x%x\n", 2812 bf_get(lpfc_acqe_link_fault, acqe_link)); 2813 latt_fault = MBXERR_ERROR; 2814 break; 2815 } 2816 return latt_fault; 2817 } 2818 2819 /** 2820 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 2821 * @phba: pointer to lpfc hba data structure. 2822 * @acqe_link: pointer to the async link completion queue entry. 2823 * 2824 * This routine is to parse the SLI4 link attention type and translate it 2825 * into the base driver's link attention type coding. 2826 * 2827 * Return: Link attention type in terms of base driver's coding. 2828 **/ 2829 static uint8_t 2830 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 2831 struct lpfc_acqe_link *acqe_link) 2832 { 2833 uint8_t att_type; 2834 2835 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 2836 case LPFC_ASYNC_LINK_STATUS_DOWN: 2837 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 2838 att_type = AT_LINK_DOWN; 2839 break; 2840 case LPFC_ASYNC_LINK_STATUS_UP: 2841 /* Ignore physical link up events - wait for logical link up */ 2842 att_type = AT_RESERVED; 2843 break; 2844 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 2845 att_type = AT_LINK_UP; 2846 break; 2847 default: 2848 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2849 "0399 Invalid link attention type: x%x\n", 2850 bf_get(lpfc_acqe_link_status, acqe_link)); 2851 att_type = AT_RESERVED; 2852 break; 2853 } 2854 return att_type; 2855 } 2856 2857 /** 2858 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 2859 * @phba: pointer to lpfc hba data structure. 2860 * @acqe_link: pointer to the async link completion queue entry. 2861 * 2862 * This routine is to parse the SLI4 link-attention link speed and translate 2863 * it into the base driver's link-attention link speed coding. 2864 * 2865 * Return: Link-attention link speed in terms of base driver's coding. 2866 **/ 2867 static uint8_t 2868 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 2869 struct lpfc_acqe_link *acqe_link) 2870 { 2871 uint8_t link_speed; 2872 2873 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 2874 case LPFC_ASYNC_LINK_SPEED_ZERO: 2875 link_speed = LA_UNKNW_LINK; 2876 break; 2877 case LPFC_ASYNC_LINK_SPEED_10MBPS: 2878 link_speed = LA_UNKNW_LINK; 2879 break; 2880 case LPFC_ASYNC_LINK_SPEED_100MBPS: 2881 link_speed = LA_UNKNW_LINK; 2882 break; 2883 case LPFC_ASYNC_LINK_SPEED_1GBPS: 2884 link_speed = LA_1GHZ_LINK; 2885 break; 2886 case LPFC_ASYNC_LINK_SPEED_10GBPS: 2887 link_speed = LA_10GHZ_LINK; 2888 break; 2889 default: 2890 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2891 "0483 Invalid link-attention link speed: x%x\n", 2892 bf_get(lpfc_acqe_link_speed, acqe_link)); 2893 link_speed = LA_UNKNW_LINK; 2894 break; 2895 } 2896 return link_speed; 2897 } 2898 2899 /** 2900 * lpfc_sli4_async_link_evt - Process the asynchronous link event 2901 * @phba: pointer to lpfc hba data structure. 2902 * @acqe_link: pointer to the async link completion queue entry. 2903 * 2904 * This routine is to handle the SLI4 asynchronous link event. 2905 **/ 2906 static void 2907 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 2908 struct lpfc_acqe_link *acqe_link) 2909 { 2910 struct lpfc_dmabuf *mp; 2911 LPFC_MBOXQ_t *pmb; 2912 MAILBOX_t *mb; 2913 READ_LA_VAR *la; 2914 uint8_t att_type; 2915 2916 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 2917 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP) 2918 return; 2919 phba->fcoe_eventtag = acqe_link->event_tag; 2920 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2921 if (!pmb) { 2922 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2923 "0395 The mboxq allocation failed\n"); 2924 return; 2925 } 2926 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 2927 if (!mp) { 2928 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2929 "0396 The lpfc_dmabuf allocation failed\n"); 2930 goto out_free_pmb; 2931 } 2932 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 2933 if (!mp->virt) { 2934 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2935 "0397 The mbuf allocation failed\n"); 2936 goto out_free_dmabuf; 2937 } 2938 2939 /* Cleanup any outstanding ELS commands */ 2940 lpfc_els_flush_all_cmd(phba); 2941 2942 /* Block ELS IOCBs until we have done process link event */ 2943 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 2944 2945 /* Update link event statistics */ 2946 phba->sli.slistat.link_event++; 2947 2948 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */ 2949 lpfc_read_la(phba, pmb, mp); 2950 pmb->vport = phba->pport; 2951 2952 /* Parse and translate status field */ 2953 mb = &pmb->u.mb; 2954 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 2955 2956 /* Parse and translate link attention fields */ 2957 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA; 2958 la->eventTag = acqe_link->event_tag; 2959 la->attType = att_type; 2960 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link); 2961 2962 /* Fake the the following irrelvant fields */ 2963 la->topology = TOPOLOGY_PT_PT; 2964 la->granted_AL_PA = 0; 2965 la->il = 0; 2966 la->pb = 0; 2967 la->fa = 0; 2968 la->mm = 0; 2969 2970 /* Keep the link status for extra SLI4 state machine reference */ 2971 phba->sli4_hba.link_state.speed = 2972 bf_get(lpfc_acqe_link_speed, acqe_link); 2973 phba->sli4_hba.link_state.duplex = 2974 bf_get(lpfc_acqe_link_duplex, acqe_link); 2975 phba->sli4_hba.link_state.status = 2976 bf_get(lpfc_acqe_link_status, acqe_link); 2977 phba->sli4_hba.link_state.physical = 2978 bf_get(lpfc_acqe_link_physical, acqe_link); 2979 phba->sli4_hba.link_state.fault = 2980 bf_get(lpfc_acqe_link_fault, acqe_link); 2981 2982 /* Invoke the lpfc_handle_latt mailbox command callback function */ 2983 lpfc_mbx_cmpl_read_la(phba, pmb); 2984 2985 return; 2986 2987 out_free_dmabuf: 2988 kfree(mp); 2989 out_free_pmb: 2990 mempool_free(pmb, phba->mbox_mem_pool); 2991 } 2992 2993 /** 2994 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event 2995 * @phba: pointer to lpfc hba data structure. 2996 * @acqe_link: pointer to the async fcoe completion queue entry. 2997 * 2998 * This routine is to handle the SLI4 asynchronous fcoe event. 2999 **/ 3000 static void 3001 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, 3002 struct lpfc_acqe_fcoe *acqe_fcoe) 3003 { 3004 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe); 3005 int rc; 3006 struct lpfc_vport *vport; 3007 struct lpfc_nodelist *ndlp; 3008 struct Scsi_Host *shost; 3009 3010 phba->fc_eventTag = acqe_fcoe->event_tag; 3011 phba->fcoe_eventtag = acqe_fcoe->event_tag; 3012 switch (event_type) { 3013 case LPFC_FCOE_EVENT_TYPE_NEW_FCF: 3014 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 3015 "2546 New FCF found index 0x%x tag 0x%x\n", 3016 acqe_fcoe->index, 3017 acqe_fcoe->event_tag); 3018 /* 3019 * If the current FCF is in discovered state, or 3020 * FCF discovery is in progress do nothing. 3021 */ 3022 spin_lock_irq(&phba->hbalock); 3023 if ((phba->fcf.fcf_flag & FCF_DISCOVERED) || 3024 (phba->hba_flag & FCF_DISC_INPROGRESS)) { 3025 spin_unlock_irq(&phba->hbalock); 3026 break; 3027 } 3028 spin_unlock_irq(&phba->hbalock); 3029 3030 /* Read the FCF table and re-discover SAN. */ 3031 rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST); 3032 if (rc) 3033 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 3034 "2547 Read FCF record failed 0x%x\n", 3035 rc); 3036 break; 3037 3038 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL: 3039 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3040 "2548 FCF Table full count 0x%x tag 0x%x\n", 3041 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe), 3042 acqe_fcoe->event_tag); 3043 break; 3044 3045 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD: 3046 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 3047 "2549 FCF disconnected from network index 0x%x" 3048 " tag 0x%x\n", acqe_fcoe->index, 3049 acqe_fcoe->event_tag); 3050 /* If the event is not for currently used fcf do nothing */ 3051 if (phba->fcf.fcf_indx != acqe_fcoe->index) 3052 break; 3053 /* 3054 * Currently, driver support only one FCF - so treat this as 3055 * a link down. 3056 */ 3057 lpfc_linkdown(phba); 3058 /* Unregister FCF if no devices connected to it */ 3059 lpfc_unregister_unused_fcf(phba); 3060 break; 3061 case LPFC_FCOE_EVENT_TYPE_CVL: 3062 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 3063 "2718 Clear Virtual Link Received for VPI 0x%x" 3064 " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag); 3065 vport = lpfc_find_vport_by_vpid(phba, 3066 acqe_fcoe->index - phba->vpi_base); 3067 if (!vport) 3068 break; 3069 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3070 if (!ndlp) 3071 break; 3072 shost = lpfc_shost_from_vport(vport); 3073 lpfc_linkdown_port(vport); 3074 if (vport->port_type != LPFC_NPIV_PORT) { 3075 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3076 spin_lock_irq(shost->host_lock); 3077 ndlp->nlp_flag |= NLP_DELAY_TMO; 3078 spin_unlock_irq(shost->host_lock); 3079 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI; 3080 vport->port_state = LPFC_FLOGI; 3081 } 3082 break; 3083 default: 3084 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3085 "0288 Unknown FCoE event type 0x%x event tag " 3086 "0x%x\n", event_type, acqe_fcoe->event_tag); 3087 break; 3088 } 3089 } 3090 3091 /** 3092 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 3093 * @phba: pointer to lpfc hba data structure. 3094 * @acqe_link: pointer to the async dcbx completion queue entry. 3095 * 3096 * This routine is to handle the SLI4 asynchronous dcbx event. 3097 **/ 3098 static void 3099 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 3100 struct lpfc_acqe_dcbx *acqe_dcbx) 3101 { 3102 phba->fc_eventTag = acqe_dcbx->event_tag; 3103 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3104 "0290 The SLI4 DCBX asynchronous event is not " 3105 "handled yet\n"); 3106 } 3107 3108 /** 3109 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3110 * @phba: pointer to lpfc hba data structure. 3111 * 3112 * This routine is invoked by the worker thread to process all the pending 3113 * SLI4 asynchronous events. 3114 **/ 3115 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3116 { 3117 struct lpfc_cq_event *cq_event; 3118 3119 /* First, declare the async event has been handled */ 3120 spin_lock_irq(&phba->hbalock); 3121 phba->hba_flag &= ~ASYNC_EVENT; 3122 spin_unlock_irq(&phba->hbalock); 3123 /* Now, handle all the async events */ 3124 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3125 /* Get the first event from the head of the event queue */ 3126 spin_lock_irq(&phba->hbalock); 3127 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3128 cq_event, struct lpfc_cq_event, list); 3129 spin_unlock_irq(&phba->hbalock); 3130 /* Process the asynchronous event */ 3131 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3132 case LPFC_TRAILER_CODE_LINK: 3133 lpfc_sli4_async_link_evt(phba, 3134 &cq_event->cqe.acqe_link); 3135 break; 3136 case LPFC_TRAILER_CODE_FCOE: 3137 lpfc_sli4_async_fcoe_evt(phba, 3138 &cq_event->cqe.acqe_fcoe); 3139 break; 3140 case LPFC_TRAILER_CODE_DCBX: 3141 lpfc_sli4_async_dcbx_evt(phba, 3142 &cq_event->cqe.acqe_dcbx); 3143 break; 3144 default: 3145 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3146 "1804 Invalid asynchrous event code: " 3147 "x%x\n", bf_get(lpfc_trailer_code, 3148 &cq_event->cqe.mcqe_cmpl)); 3149 break; 3150 } 3151 /* Free the completion event processed to the free pool */ 3152 lpfc_sli4_cq_event_release(phba, cq_event); 3153 } 3154 } 3155 3156 /** 3157 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3158 * @phba: pointer to lpfc hba data structure. 3159 * @dev_grp: The HBA PCI-Device group number. 3160 * 3161 * This routine is invoked to set up the per HBA PCI-Device group function 3162 * API jump table entries. 3163 * 3164 * Return: 0 if success, otherwise -ENODEV 3165 **/ 3166 int 3167 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3168 { 3169 int rc; 3170 3171 /* Set up lpfc PCI-device group */ 3172 phba->pci_dev_grp = dev_grp; 3173 3174 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3175 if (dev_grp == LPFC_PCI_DEV_OC) 3176 phba->sli_rev = LPFC_SLI_REV4; 3177 3178 /* Set up device INIT API function jump table */ 3179 rc = lpfc_init_api_table_setup(phba, dev_grp); 3180 if (rc) 3181 return -ENODEV; 3182 /* Set up SCSI API function jump table */ 3183 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3184 if (rc) 3185 return -ENODEV; 3186 /* Set up SLI API function jump table */ 3187 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3188 if (rc) 3189 return -ENODEV; 3190 /* Set up MBOX API function jump table */ 3191 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3192 if (rc) 3193 return -ENODEV; 3194 3195 return 0; 3196 } 3197 3198 /** 3199 * lpfc_log_intr_mode - Log the active interrupt mode 3200 * @phba: pointer to lpfc hba data structure. 3201 * @intr_mode: active interrupt mode adopted. 3202 * 3203 * This routine it invoked to log the currently used active interrupt mode 3204 * to the device. 3205 **/ 3206 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3207 { 3208 switch (intr_mode) { 3209 case 0: 3210 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3211 "0470 Enable INTx interrupt mode.\n"); 3212 break; 3213 case 1: 3214 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3215 "0481 Enabled MSI interrupt mode.\n"); 3216 break; 3217 case 2: 3218 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3219 "0480 Enabled MSI-X interrupt mode.\n"); 3220 break; 3221 default: 3222 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3223 "0482 Illegal interrupt mode.\n"); 3224 break; 3225 } 3226 return; 3227 } 3228 3229 /** 3230 * lpfc_enable_pci_dev - Enable a generic PCI device. 3231 * @phba: pointer to lpfc hba data structure. 3232 * 3233 * This routine is invoked to enable the PCI device that is common to all 3234 * PCI devices. 3235 * 3236 * Return codes 3237 * 0 - successful 3238 * other values - error 3239 **/ 3240 static int 3241 lpfc_enable_pci_dev(struct lpfc_hba *phba) 3242 { 3243 struct pci_dev *pdev; 3244 int bars; 3245 3246 /* Obtain PCI device reference */ 3247 if (!phba->pcidev) 3248 goto out_error; 3249 else 3250 pdev = phba->pcidev; 3251 /* Select PCI BARs */ 3252 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3253 /* Enable PCI device */ 3254 if (pci_enable_device_mem(pdev)) 3255 goto out_error; 3256 /* Request PCI resource for the device */ 3257 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3258 goto out_disable_device; 3259 /* Set up device as PCI master and save state for EEH */ 3260 pci_set_master(pdev); 3261 pci_try_set_mwi(pdev); 3262 pci_save_state(pdev); 3263 3264 return 0; 3265 3266 out_disable_device: 3267 pci_disable_device(pdev); 3268 out_error: 3269 return -ENODEV; 3270 } 3271 3272 /** 3273 * lpfc_disable_pci_dev - Disable a generic PCI device. 3274 * @phba: pointer to lpfc hba data structure. 3275 * 3276 * This routine is invoked to disable the PCI device that is common to all 3277 * PCI devices. 3278 **/ 3279 static void 3280 lpfc_disable_pci_dev(struct lpfc_hba *phba) 3281 { 3282 struct pci_dev *pdev; 3283 int bars; 3284 3285 /* Obtain PCI device reference */ 3286 if (!phba->pcidev) 3287 return; 3288 else 3289 pdev = phba->pcidev; 3290 /* Select PCI BARs */ 3291 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3292 /* Release PCI resource and disable PCI device */ 3293 pci_release_selected_regions(pdev, bars); 3294 pci_disable_device(pdev); 3295 /* Null out PCI private reference to driver */ 3296 pci_set_drvdata(pdev, NULL); 3297 3298 return; 3299 } 3300 3301 /** 3302 * lpfc_reset_hba - Reset a hba 3303 * @phba: pointer to lpfc hba data structure. 3304 * 3305 * This routine is invoked to reset a hba device. It brings the HBA 3306 * offline, performs a board restart, and then brings the board back 3307 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 3308 * on outstanding mailbox commands. 3309 **/ 3310 void 3311 lpfc_reset_hba(struct lpfc_hba *phba) 3312 { 3313 /* If resets are disabled then set error state and return. */ 3314 if (!phba->cfg_enable_hba_reset) { 3315 phba->link_state = LPFC_HBA_ERROR; 3316 return; 3317 } 3318 lpfc_offline_prep(phba); 3319 lpfc_offline(phba); 3320 lpfc_sli_brdrestart(phba); 3321 lpfc_online(phba); 3322 lpfc_unblock_mgmt_io(phba); 3323 } 3324 3325 /** 3326 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 3327 * @phba: pointer to lpfc hba data structure. 3328 * 3329 * This routine is invoked to set up the driver internal resources specific to 3330 * support the SLI-3 HBA device it attached to. 3331 * 3332 * Return codes 3333 * 0 - successful 3334 * other values - error 3335 **/ 3336 static int 3337 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 3338 { 3339 struct lpfc_sli *psli; 3340 3341 /* 3342 * Initialize timers used by driver 3343 */ 3344 3345 /* Heartbeat timer */ 3346 init_timer(&phba->hb_tmofunc); 3347 phba->hb_tmofunc.function = lpfc_hb_timeout; 3348 phba->hb_tmofunc.data = (unsigned long)phba; 3349 3350 psli = &phba->sli; 3351 /* MBOX heartbeat timer */ 3352 init_timer(&psli->mbox_tmo); 3353 psli->mbox_tmo.function = lpfc_mbox_timeout; 3354 psli->mbox_tmo.data = (unsigned long) phba; 3355 /* FCP polling mode timer */ 3356 init_timer(&phba->fcp_poll_timer); 3357 phba->fcp_poll_timer.function = lpfc_poll_timeout; 3358 phba->fcp_poll_timer.data = (unsigned long) phba; 3359 /* Fabric block timer */ 3360 init_timer(&phba->fabric_block_timer); 3361 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3362 phba->fabric_block_timer.data = (unsigned long) phba; 3363 /* EA polling mode timer */ 3364 init_timer(&phba->eratt_poll); 3365 phba->eratt_poll.function = lpfc_poll_eratt; 3366 phba->eratt_poll.data = (unsigned long) phba; 3367 3368 /* Host attention work mask setup */ 3369 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 3370 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 3371 3372 /* Get all the module params for configuring this host */ 3373 lpfc_get_cfgparam(phba); 3374 /* 3375 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3376 * used to create the sg_dma_buf_pool must be dynamically calculated. 3377 * 2 segments are added since the IOCB needs a command and response bde. 3378 */ 3379 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 3380 sizeof(struct fcp_rsp) + 3381 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 3382 3383 if (phba->cfg_enable_bg) { 3384 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 3385 phba->cfg_sg_dma_buf_size += 3386 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 3387 } 3388 3389 /* Also reinitialize the host templates with new values. */ 3390 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3391 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3392 3393 phba->max_vpi = LPFC_MAX_VPI; 3394 /* This will be set to correct value after config_port mbox */ 3395 phba->max_vports = 0; 3396 3397 /* 3398 * Initialize the SLI Layer to run with lpfc HBAs. 3399 */ 3400 lpfc_sli_setup(phba); 3401 lpfc_sli_queue_setup(phba); 3402 3403 /* Allocate device driver memory */ 3404 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 3405 return -ENOMEM; 3406 3407 return 0; 3408 } 3409 3410 /** 3411 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 3412 * @phba: pointer to lpfc hba data structure. 3413 * 3414 * This routine is invoked to unset the driver internal resources set up 3415 * specific for supporting the SLI-3 HBA device it attached to. 3416 **/ 3417 static void 3418 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 3419 { 3420 /* Free device driver memory allocated */ 3421 lpfc_mem_free_all(phba); 3422 3423 return; 3424 } 3425 3426 /** 3427 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 3428 * @phba: pointer to lpfc hba data structure. 3429 * 3430 * This routine is invoked to set up the driver internal resources specific to 3431 * support the SLI-4 HBA device it attached to. 3432 * 3433 * Return codes 3434 * 0 - successful 3435 * other values - error 3436 **/ 3437 static int 3438 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 3439 { 3440 struct lpfc_sli *psli; 3441 int rc; 3442 int i, hbq_count; 3443 3444 /* Before proceed, wait for POST done and device ready */ 3445 rc = lpfc_sli4_post_status_check(phba); 3446 if (rc) 3447 return -ENODEV; 3448 3449 /* 3450 * Initialize timers used by driver 3451 */ 3452 3453 /* Heartbeat timer */ 3454 init_timer(&phba->hb_tmofunc); 3455 phba->hb_tmofunc.function = lpfc_hb_timeout; 3456 phba->hb_tmofunc.data = (unsigned long)phba; 3457 3458 psli = &phba->sli; 3459 /* MBOX heartbeat timer */ 3460 init_timer(&psli->mbox_tmo); 3461 psli->mbox_tmo.function = lpfc_mbox_timeout; 3462 psli->mbox_tmo.data = (unsigned long) phba; 3463 /* Fabric block timer */ 3464 init_timer(&phba->fabric_block_timer); 3465 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3466 phba->fabric_block_timer.data = (unsigned long) phba; 3467 /* EA polling mode timer */ 3468 init_timer(&phba->eratt_poll); 3469 phba->eratt_poll.function = lpfc_poll_eratt; 3470 phba->eratt_poll.data = (unsigned long) phba; 3471 /* 3472 * We need to do a READ_CONFIG mailbox command here before 3473 * calling lpfc_get_cfgparam. For VFs this will report the 3474 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 3475 * All of the resources allocated 3476 * for this Port are tied to these values. 3477 */ 3478 /* Get all the module params for configuring this host */ 3479 lpfc_get_cfgparam(phba); 3480 phba->max_vpi = LPFC_MAX_VPI; 3481 /* This will be set to correct value after the read_config mbox */ 3482 phba->max_vports = 0; 3483 3484 /* Program the default value of vlan_id and fc_map */ 3485 phba->valid_vlan = 0; 3486 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 3487 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 3488 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 3489 3490 /* 3491 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3492 * used to create the sg_dma_buf_pool must be dynamically calculated. 3493 * 2 segments are added since the IOCB needs a command and response bde. 3494 * To insure that the scsi sgl does not cross a 4k page boundary only 3495 * sgl sizes of 1k, 2k, 4k, and 8k are supported. 3496 * Table of sgl sizes and seg_cnt: 3497 * sgl size, sg_seg_cnt total seg 3498 * 1k 50 52 3499 * 2k 114 116 3500 * 4k 242 244 3501 * 8k 498 500 3502 * cmd(32) + rsp(160) + (52 * sizeof(sli4_sge)) = 1024 3503 * cmd(32) + rsp(160) + (116 * sizeof(sli4_sge)) = 2048 3504 * cmd(32) + rsp(160) + (244 * sizeof(sli4_sge)) = 4096 3505 * cmd(32) + rsp(160) + (500 * sizeof(sli4_sge)) = 8192 3506 */ 3507 if (phba->cfg_sg_seg_cnt <= LPFC_DEFAULT_SG_SEG_CNT) 3508 phba->cfg_sg_seg_cnt = 50; 3509 else if (phba->cfg_sg_seg_cnt <= 114) 3510 phba->cfg_sg_seg_cnt = 114; 3511 else if (phba->cfg_sg_seg_cnt <= 242) 3512 phba->cfg_sg_seg_cnt = 242; 3513 else 3514 phba->cfg_sg_seg_cnt = 498; 3515 3516 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) 3517 + sizeof(struct fcp_rsp); 3518 phba->cfg_sg_dma_buf_size += 3519 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)); 3520 3521 /* Initialize buffer queue management fields */ 3522 hbq_count = lpfc_sli_hbq_count(); 3523 for (i = 0; i < hbq_count; ++i) 3524 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 3525 INIT_LIST_HEAD(&phba->rb_pend_list); 3526 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 3527 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 3528 3529 /* 3530 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 3531 */ 3532 /* Initialize the Abort scsi buffer list used by driver */ 3533 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 3534 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 3535 /* This abort list used by worker thread */ 3536 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 3537 3538 /* 3539 * Initialize dirver internal slow-path work queues 3540 */ 3541 3542 /* Driver internel slow-path CQ Event pool */ 3543 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 3544 /* Response IOCB work queue list */ 3545 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 3546 /* Asynchronous event CQ Event work queue list */ 3547 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 3548 /* Fast-path XRI aborted CQ Event work queue list */ 3549 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 3550 /* Slow-path XRI aborted CQ Event work queue list */ 3551 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 3552 /* Receive queue CQ Event work queue list */ 3553 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 3554 3555 /* Initialize the driver internal SLI layer lists. */ 3556 lpfc_sli_setup(phba); 3557 lpfc_sli_queue_setup(phba); 3558 3559 /* Allocate device driver memory */ 3560 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 3561 if (rc) 3562 return -ENOMEM; 3563 3564 /* Create the bootstrap mailbox command */ 3565 rc = lpfc_create_bootstrap_mbox(phba); 3566 if (unlikely(rc)) 3567 goto out_free_mem; 3568 3569 /* Set up the host's endian order with the device. */ 3570 rc = lpfc_setup_endian_order(phba); 3571 if (unlikely(rc)) 3572 goto out_free_bsmbx; 3573 3574 rc = lpfc_sli4_fw_cfg_check(phba); 3575 if (unlikely(rc)) 3576 goto out_free_bsmbx; 3577 3578 /* Set up the hba's configuration parameters. */ 3579 rc = lpfc_sli4_read_config(phba); 3580 if (unlikely(rc)) 3581 goto out_free_bsmbx; 3582 3583 /* Perform a function reset */ 3584 rc = lpfc_pci_function_reset(phba); 3585 if (unlikely(rc)) 3586 goto out_free_bsmbx; 3587 3588 /* Create all the SLI4 queues */ 3589 rc = lpfc_sli4_queue_create(phba); 3590 if (rc) 3591 goto out_free_bsmbx; 3592 3593 /* Create driver internal CQE event pool */ 3594 rc = lpfc_sli4_cq_event_pool_create(phba); 3595 if (rc) 3596 goto out_destroy_queue; 3597 3598 /* Initialize and populate the iocb list per host */ 3599 rc = lpfc_init_sgl_list(phba); 3600 if (rc) { 3601 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3602 "1400 Failed to initialize sgl list.\n"); 3603 goto out_destroy_cq_event_pool; 3604 } 3605 rc = lpfc_init_active_sgl_array(phba); 3606 if (rc) { 3607 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3608 "1430 Failed to initialize sgl list.\n"); 3609 goto out_free_sgl_list; 3610 } 3611 3612 rc = lpfc_sli4_init_rpi_hdrs(phba); 3613 if (rc) { 3614 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3615 "1432 Failed to initialize rpi headers.\n"); 3616 goto out_free_active_sgl; 3617 } 3618 3619 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 3620 phba->cfg_fcp_eq_count), GFP_KERNEL); 3621 if (!phba->sli4_hba.fcp_eq_hdl) { 3622 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3623 "2572 Failed allocate memory for fast-path " 3624 "per-EQ handle array\n"); 3625 goto out_remove_rpi_hdrs; 3626 } 3627 3628 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 3629 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 3630 if (!phba->sli4_hba.msix_entries) { 3631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3632 "2573 Failed allocate memory for msi-x " 3633 "interrupt vector entries\n"); 3634 goto out_free_fcp_eq_hdl; 3635 } 3636 3637 return rc; 3638 3639 out_free_fcp_eq_hdl: 3640 kfree(phba->sli4_hba.fcp_eq_hdl); 3641 out_remove_rpi_hdrs: 3642 lpfc_sli4_remove_rpi_hdrs(phba); 3643 out_free_active_sgl: 3644 lpfc_free_active_sgl(phba); 3645 out_free_sgl_list: 3646 lpfc_free_sgl_list(phba); 3647 out_destroy_cq_event_pool: 3648 lpfc_sli4_cq_event_pool_destroy(phba); 3649 out_destroy_queue: 3650 lpfc_sli4_queue_destroy(phba); 3651 out_free_bsmbx: 3652 lpfc_destroy_bootstrap_mbox(phba); 3653 out_free_mem: 3654 lpfc_mem_free(phba); 3655 return rc; 3656 } 3657 3658 /** 3659 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 3660 * @phba: pointer to lpfc hba data structure. 3661 * 3662 * This routine is invoked to unset the driver internal resources set up 3663 * specific for supporting the SLI-4 HBA device it attached to. 3664 **/ 3665 static void 3666 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 3667 { 3668 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 3669 3670 /* unregister default FCFI from the HBA */ 3671 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi); 3672 3673 /* Free the default FCR table */ 3674 lpfc_sli_remove_dflt_fcf(phba); 3675 3676 /* Free memory allocated for msi-x interrupt vector entries */ 3677 kfree(phba->sli4_hba.msix_entries); 3678 3679 /* Free memory allocated for fast-path work queue handles */ 3680 kfree(phba->sli4_hba.fcp_eq_hdl); 3681 3682 /* Free the allocated rpi headers. */ 3683 lpfc_sli4_remove_rpi_hdrs(phba); 3684 lpfc_sli4_remove_rpis(phba); 3685 3686 /* Free the ELS sgl list */ 3687 lpfc_free_active_sgl(phba); 3688 lpfc_free_sgl_list(phba); 3689 3690 /* Free the SCSI sgl management array */ 3691 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 3692 3693 /* Free the SLI4 queues */ 3694 lpfc_sli4_queue_destroy(phba); 3695 3696 /* Free the completion queue EQ event pool */ 3697 lpfc_sli4_cq_event_release_all(phba); 3698 lpfc_sli4_cq_event_pool_destroy(phba); 3699 3700 /* Reset SLI4 HBA FCoE function */ 3701 lpfc_pci_function_reset(phba); 3702 3703 /* Free the bsmbx region. */ 3704 lpfc_destroy_bootstrap_mbox(phba); 3705 3706 /* Free the SLI Layer memory with SLI4 HBAs */ 3707 lpfc_mem_free_all(phba); 3708 3709 /* Free the current connect table */ 3710 list_for_each_entry_safe(conn_entry, next_conn_entry, 3711 &phba->fcf_conn_rec_list, list) { 3712 list_del_init(&conn_entry->list); 3713 kfree(conn_entry); 3714 } 3715 3716 return; 3717 } 3718 3719 /** 3720 * lpfc_init_api_table_setup - Set up init api fucntion jump table 3721 * @phba: The hba struct for which this call is being executed. 3722 * @dev_grp: The HBA PCI-Device group number. 3723 * 3724 * This routine sets up the device INIT interface API function jump table 3725 * in @phba struct. 3726 * 3727 * Returns: 0 - success, -ENODEV - failure. 3728 **/ 3729 int 3730 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3731 { 3732 switch (dev_grp) { 3733 case LPFC_PCI_DEV_LP: 3734 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 3735 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 3736 phba->lpfc_stop_port = lpfc_stop_port_s3; 3737 break; 3738 case LPFC_PCI_DEV_OC: 3739 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 3740 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 3741 phba->lpfc_stop_port = lpfc_stop_port_s4; 3742 break; 3743 default: 3744 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3745 "1431 Invalid HBA PCI-device group: 0x%x\n", 3746 dev_grp); 3747 return -ENODEV; 3748 break; 3749 } 3750 return 0; 3751 } 3752 3753 /** 3754 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 3755 * @phba: pointer to lpfc hba data structure. 3756 * 3757 * This routine is invoked to set up the driver internal resources before the 3758 * device specific resource setup to support the HBA device it attached to. 3759 * 3760 * Return codes 3761 * 0 - successful 3762 * other values - error 3763 **/ 3764 static int 3765 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 3766 { 3767 /* 3768 * Driver resources common to all SLI revisions 3769 */ 3770 atomic_set(&phba->fast_event_count, 0); 3771 spin_lock_init(&phba->hbalock); 3772 3773 /* Initialize ndlp management spinlock */ 3774 spin_lock_init(&phba->ndlp_lock); 3775 3776 INIT_LIST_HEAD(&phba->port_list); 3777 INIT_LIST_HEAD(&phba->work_list); 3778 init_waitqueue_head(&phba->wait_4_mlo_m_q); 3779 3780 /* Initialize the wait queue head for the kernel thread */ 3781 init_waitqueue_head(&phba->work_waitq); 3782 3783 /* Initialize the scsi buffer list used by driver for scsi IO */ 3784 spin_lock_init(&phba->scsi_buf_list_lock); 3785 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 3786 3787 /* Initialize the fabric iocb list */ 3788 INIT_LIST_HEAD(&phba->fabric_iocb_list); 3789 3790 /* Initialize list to save ELS buffers */ 3791 INIT_LIST_HEAD(&phba->elsbuf); 3792 3793 /* Initialize FCF connection rec list */ 3794 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 3795 3796 return 0; 3797 } 3798 3799 /** 3800 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 3801 * @phba: pointer to lpfc hba data structure. 3802 * 3803 * This routine is invoked to set up the driver internal resources after the 3804 * device specific resource setup to support the HBA device it attached to. 3805 * 3806 * Return codes 3807 * 0 - successful 3808 * other values - error 3809 **/ 3810 static int 3811 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 3812 { 3813 int error; 3814 3815 /* Startup the kernel thread for this host adapter. */ 3816 phba->worker_thread = kthread_run(lpfc_do_work, phba, 3817 "lpfc_worker_%d", phba->brd_no); 3818 if (IS_ERR(phba->worker_thread)) { 3819 error = PTR_ERR(phba->worker_thread); 3820 return error; 3821 } 3822 3823 return 0; 3824 } 3825 3826 /** 3827 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 3828 * @phba: pointer to lpfc hba data structure. 3829 * 3830 * This routine is invoked to unset the driver internal resources set up after 3831 * the device specific resource setup for supporting the HBA device it 3832 * attached to. 3833 **/ 3834 static void 3835 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 3836 { 3837 /* Stop kernel worker thread */ 3838 kthread_stop(phba->worker_thread); 3839 } 3840 3841 /** 3842 * lpfc_free_iocb_list - Free iocb list. 3843 * @phba: pointer to lpfc hba data structure. 3844 * 3845 * This routine is invoked to free the driver's IOCB list and memory. 3846 **/ 3847 static void 3848 lpfc_free_iocb_list(struct lpfc_hba *phba) 3849 { 3850 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 3851 3852 spin_lock_irq(&phba->hbalock); 3853 list_for_each_entry_safe(iocbq_entry, iocbq_next, 3854 &phba->lpfc_iocb_list, list) { 3855 list_del(&iocbq_entry->list); 3856 kfree(iocbq_entry); 3857 phba->total_iocbq_bufs--; 3858 } 3859 spin_unlock_irq(&phba->hbalock); 3860 3861 return; 3862 } 3863 3864 /** 3865 * lpfc_init_iocb_list - Allocate and initialize iocb list. 3866 * @phba: pointer to lpfc hba data structure. 3867 * 3868 * This routine is invoked to allocate and initizlize the driver's IOCB 3869 * list and set up the IOCB tag array accordingly. 3870 * 3871 * Return codes 3872 * 0 - successful 3873 * other values - error 3874 **/ 3875 static int 3876 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 3877 { 3878 struct lpfc_iocbq *iocbq_entry = NULL; 3879 uint16_t iotag; 3880 int i; 3881 3882 /* Initialize and populate the iocb list per host. */ 3883 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 3884 for (i = 0; i < iocb_count; i++) { 3885 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 3886 if (iocbq_entry == NULL) { 3887 printk(KERN_ERR "%s: only allocated %d iocbs of " 3888 "expected %d count. Unloading driver.\n", 3889 __func__, i, LPFC_IOCB_LIST_CNT); 3890 goto out_free_iocbq; 3891 } 3892 3893 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 3894 if (iotag == 0) { 3895 kfree(iocbq_entry); 3896 printk(KERN_ERR "%s: failed to allocate IOTAG. " 3897 "Unloading driver.\n", __func__); 3898 goto out_free_iocbq; 3899 } 3900 iocbq_entry->sli4_xritag = NO_XRI; 3901 3902 spin_lock_irq(&phba->hbalock); 3903 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 3904 phba->total_iocbq_bufs++; 3905 spin_unlock_irq(&phba->hbalock); 3906 } 3907 3908 return 0; 3909 3910 out_free_iocbq: 3911 lpfc_free_iocb_list(phba); 3912 3913 return -ENOMEM; 3914 } 3915 3916 /** 3917 * lpfc_free_sgl_list - Free sgl list. 3918 * @phba: pointer to lpfc hba data structure. 3919 * 3920 * This routine is invoked to free the driver's sgl list and memory. 3921 **/ 3922 static void 3923 lpfc_free_sgl_list(struct lpfc_hba *phba) 3924 { 3925 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 3926 LIST_HEAD(sglq_list); 3927 int rc = 0; 3928 3929 spin_lock_irq(&phba->hbalock); 3930 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 3931 spin_unlock_irq(&phba->hbalock); 3932 3933 list_for_each_entry_safe(sglq_entry, sglq_next, 3934 &sglq_list, list) { 3935 list_del(&sglq_entry->list); 3936 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 3937 kfree(sglq_entry); 3938 phba->sli4_hba.total_sglq_bufs--; 3939 } 3940 rc = lpfc_sli4_remove_all_sgl_pages(phba); 3941 if (rc) { 3942 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3943 "2005 Unable to deregister pages from HBA: %x\n", rc); 3944 } 3945 kfree(phba->sli4_hba.lpfc_els_sgl_array); 3946 } 3947 3948 /** 3949 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 3950 * @phba: pointer to lpfc hba data structure. 3951 * 3952 * This routine is invoked to allocate the driver's active sgl memory. 3953 * This array will hold the sglq_entry's for active IOs. 3954 **/ 3955 static int 3956 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 3957 { 3958 int size; 3959 size = sizeof(struct lpfc_sglq *); 3960 size *= phba->sli4_hba.max_cfg_param.max_xri; 3961 3962 phba->sli4_hba.lpfc_sglq_active_list = 3963 kzalloc(size, GFP_KERNEL); 3964 if (!phba->sli4_hba.lpfc_sglq_active_list) 3965 return -ENOMEM; 3966 return 0; 3967 } 3968 3969 /** 3970 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 3971 * @phba: pointer to lpfc hba data structure. 3972 * 3973 * This routine is invoked to walk through the array of active sglq entries 3974 * and free all of the resources. 3975 * This is just a place holder for now. 3976 **/ 3977 static void 3978 lpfc_free_active_sgl(struct lpfc_hba *phba) 3979 { 3980 kfree(phba->sli4_hba.lpfc_sglq_active_list); 3981 } 3982 3983 /** 3984 * lpfc_init_sgl_list - Allocate and initialize sgl list. 3985 * @phba: pointer to lpfc hba data structure. 3986 * 3987 * This routine is invoked to allocate and initizlize the driver's sgl 3988 * list and set up the sgl xritag tag array accordingly. 3989 * 3990 * Return codes 3991 * 0 - successful 3992 * other values - error 3993 **/ 3994 static int 3995 lpfc_init_sgl_list(struct lpfc_hba *phba) 3996 { 3997 struct lpfc_sglq *sglq_entry = NULL; 3998 int i; 3999 int els_xri_cnt; 4000 4001 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 4002 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4003 "2400 lpfc_init_sgl_list els %d.\n", 4004 els_xri_cnt); 4005 /* Initialize and populate the sglq list per host/VF. */ 4006 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 4007 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 4008 4009 /* Sanity check on XRI management */ 4010 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 4011 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4012 "2562 No room left for SCSI XRI allocation: " 4013 "max_xri=%d, els_xri=%d\n", 4014 phba->sli4_hba.max_cfg_param.max_xri, 4015 els_xri_cnt); 4016 return -ENOMEM; 4017 } 4018 4019 /* Allocate memory for the ELS XRI management array */ 4020 phba->sli4_hba.lpfc_els_sgl_array = 4021 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 4022 GFP_KERNEL); 4023 4024 if (!phba->sli4_hba.lpfc_els_sgl_array) { 4025 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4026 "2401 Failed to allocate memory for ELS " 4027 "XRI management array of size %d.\n", 4028 els_xri_cnt); 4029 return -ENOMEM; 4030 } 4031 4032 /* Keep the SCSI XRI into the XRI management array */ 4033 phba->sli4_hba.scsi_xri_max = 4034 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 4035 phba->sli4_hba.scsi_xri_cnt = 0; 4036 4037 phba->sli4_hba.lpfc_scsi_psb_array = 4038 kzalloc((sizeof(struct lpfc_scsi_buf *) * 4039 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 4040 4041 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 4042 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4043 "2563 Failed to allocate memory for SCSI " 4044 "XRI management array of size %d.\n", 4045 phba->sli4_hba.scsi_xri_max); 4046 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4047 return -ENOMEM; 4048 } 4049 4050 for (i = 0; i < els_xri_cnt; i++) { 4051 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 4052 if (sglq_entry == NULL) { 4053 printk(KERN_ERR "%s: only allocated %d sgls of " 4054 "expected %d count. Unloading driver.\n", 4055 __func__, i, els_xri_cnt); 4056 goto out_free_mem; 4057 } 4058 4059 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba); 4060 if (sglq_entry->sli4_xritag == NO_XRI) { 4061 kfree(sglq_entry); 4062 printk(KERN_ERR "%s: failed to allocate XRI.\n" 4063 "Unloading driver.\n", __func__); 4064 goto out_free_mem; 4065 } 4066 sglq_entry->buff_type = GEN_BUFF_TYPE; 4067 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 4068 if (sglq_entry->virt == NULL) { 4069 kfree(sglq_entry); 4070 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 4071 "Unloading driver.\n", __func__); 4072 goto out_free_mem; 4073 } 4074 sglq_entry->sgl = sglq_entry->virt; 4075 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 4076 4077 /* The list order is used by later block SGL registraton */ 4078 spin_lock_irq(&phba->hbalock); 4079 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 4080 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 4081 phba->sli4_hba.total_sglq_bufs++; 4082 spin_unlock_irq(&phba->hbalock); 4083 } 4084 return 0; 4085 4086 out_free_mem: 4087 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4088 lpfc_free_sgl_list(phba); 4089 return -ENOMEM; 4090 } 4091 4092 /** 4093 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 4094 * @phba: pointer to lpfc hba data structure. 4095 * 4096 * This routine is invoked to post rpi header templates to the 4097 * HBA consistent with the SLI-4 interface spec. This routine 4098 * posts a PAGE_SIZE memory region to the port to hold up to 4099 * PAGE_SIZE modulo 64 rpi context headers. 4100 * No locks are held here because this is an initialization routine 4101 * called only from probe or lpfc_online when interrupts are not 4102 * enabled and the driver is reinitializing the device. 4103 * 4104 * Return codes 4105 * 0 - successful 4106 * ENOMEM - No availble memory 4107 * EIO - The mailbox failed to complete successfully. 4108 **/ 4109 int 4110 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 4111 { 4112 int rc = 0; 4113 int longs; 4114 uint16_t rpi_count; 4115 struct lpfc_rpi_hdr *rpi_hdr; 4116 4117 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 4118 4119 /* 4120 * Provision an rpi bitmask range for discovery. The total count 4121 * is the difference between max and base + 1. 4122 */ 4123 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base + 4124 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4125 4126 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG; 4127 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long), 4128 GFP_KERNEL); 4129 if (!phba->sli4_hba.rpi_bmask) 4130 return -ENOMEM; 4131 4132 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 4133 if (!rpi_hdr) { 4134 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 4135 "0391 Error during rpi post operation\n"); 4136 lpfc_sli4_remove_rpis(phba); 4137 rc = -ENODEV; 4138 } 4139 4140 return rc; 4141 } 4142 4143 /** 4144 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 4145 * @phba: pointer to lpfc hba data structure. 4146 * 4147 * This routine is invoked to allocate a single 4KB memory region to 4148 * support rpis and stores them in the phba. This single region 4149 * provides support for up to 64 rpis. The region is used globally 4150 * by the device. 4151 * 4152 * Returns: 4153 * A valid rpi hdr on success. 4154 * A NULL pointer on any failure. 4155 **/ 4156 struct lpfc_rpi_hdr * 4157 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 4158 { 4159 uint16_t rpi_limit, curr_rpi_range; 4160 struct lpfc_dmabuf *dmabuf; 4161 struct lpfc_rpi_hdr *rpi_hdr; 4162 4163 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 4164 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4165 4166 spin_lock_irq(&phba->hbalock); 4167 curr_rpi_range = phba->sli4_hba.next_rpi; 4168 spin_unlock_irq(&phba->hbalock); 4169 4170 /* 4171 * The port has a limited number of rpis. The increment here 4172 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 4173 * and to allow the full max_rpi range per port. 4174 */ 4175 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 4176 return NULL; 4177 4178 /* 4179 * First allocate the protocol header region for the port. The 4180 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 4181 */ 4182 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4183 if (!dmabuf) 4184 return NULL; 4185 4186 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4187 LPFC_HDR_TEMPLATE_SIZE, 4188 &dmabuf->phys, 4189 GFP_KERNEL); 4190 if (!dmabuf->virt) { 4191 rpi_hdr = NULL; 4192 goto err_free_dmabuf; 4193 } 4194 4195 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 4196 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 4197 rpi_hdr = NULL; 4198 goto err_free_coherent; 4199 } 4200 4201 /* Save the rpi header data for cleanup later. */ 4202 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 4203 if (!rpi_hdr) 4204 goto err_free_coherent; 4205 4206 rpi_hdr->dmabuf = dmabuf; 4207 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 4208 rpi_hdr->page_count = 1; 4209 spin_lock_irq(&phba->hbalock); 4210 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi; 4211 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 4212 4213 /* 4214 * The next_rpi stores the next module-64 rpi value to post 4215 * in any subsequent rpi memory region postings. 4216 */ 4217 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT; 4218 spin_unlock_irq(&phba->hbalock); 4219 return rpi_hdr; 4220 4221 err_free_coherent: 4222 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 4223 dmabuf->virt, dmabuf->phys); 4224 err_free_dmabuf: 4225 kfree(dmabuf); 4226 return NULL; 4227 } 4228 4229 /** 4230 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 4231 * @phba: pointer to lpfc hba data structure. 4232 * 4233 * This routine is invoked to remove all memory resources allocated 4234 * to support rpis. This routine presumes the caller has released all 4235 * rpis consumed by fabric or port logins and is prepared to have 4236 * the header pages removed. 4237 **/ 4238 void 4239 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 4240 { 4241 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 4242 4243 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 4244 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 4245 list_del(&rpi_hdr->list); 4246 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 4247 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 4248 kfree(rpi_hdr->dmabuf); 4249 kfree(rpi_hdr); 4250 } 4251 4252 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4253 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask)); 4254 } 4255 4256 /** 4257 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 4258 * @pdev: pointer to pci device data structure. 4259 * 4260 * This routine is invoked to allocate the driver hba data structure for an 4261 * HBA device. If the allocation is successful, the phba reference to the 4262 * PCI device data structure is set. 4263 * 4264 * Return codes 4265 * pointer to @phba - successful 4266 * NULL - error 4267 **/ 4268 static struct lpfc_hba * 4269 lpfc_hba_alloc(struct pci_dev *pdev) 4270 { 4271 struct lpfc_hba *phba; 4272 4273 /* Allocate memory for HBA structure */ 4274 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 4275 if (!phba) { 4276 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 4277 return NULL; 4278 } 4279 4280 /* Set reference to PCI device in HBA structure */ 4281 phba->pcidev = pdev; 4282 4283 /* Assign an unused board number */ 4284 phba->brd_no = lpfc_get_instance(); 4285 if (phba->brd_no < 0) { 4286 kfree(phba); 4287 return NULL; 4288 } 4289 4290 mutex_init(&phba->ct_event_mutex); 4291 INIT_LIST_HEAD(&phba->ct_ev_waiters); 4292 4293 return phba; 4294 } 4295 4296 /** 4297 * lpfc_hba_free - Free driver hba data structure with a device. 4298 * @phba: pointer to lpfc hba data structure. 4299 * 4300 * This routine is invoked to free the driver hba data structure with an 4301 * HBA device. 4302 **/ 4303 static void 4304 lpfc_hba_free(struct lpfc_hba *phba) 4305 { 4306 /* Release the driver assigned board number */ 4307 idr_remove(&lpfc_hba_index, phba->brd_no); 4308 4309 kfree(phba); 4310 return; 4311 } 4312 4313 /** 4314 * lpfc_create_shost - Create hba physical port with associated scsi host. 4315 * @phba: pointer to lpfc hba data structure. 4316 * 4317 * This routine is invoked to create HBA physical port and associate a SCSI 4318 * host with it. 4319 * 4320 * Return codes 4321 * 0 - successful 4322 * other values - error 4323 **/ 4324 static int 4325 lpfc_create_shost(struct lpfc_hba *phba) 4326 { 4327 struct lpfc_vport *vport; 4328 struct Scsi_Host *shost; 4329 4330 /* Initialize HBA FC structure */ 4331 phba->fc_edtov = FF_DEF_EDTOV; 4332 phba->fc_ratov = FF_DEF_RATOV; 4333 phba->fc_altov = FF_DEF_ALTOV; 4334 phba->fc_arbtov = FF_DEF_ARBTOV; 4335 4336 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 4337 if (!vport) 4338 return -ENODEV; 4339 4340 shost = lpfc_shost_from_vport(vport); 4341 phba->pport = vport; 4342 lpfc_debugfs_initialize(vport); 4343 /* Put reference to SCSI host to driver's device private data */ 4344 pci_set_drvdata(phba->pcidev, shost); 4345 4346 return 0; 4347 } 4348 4349 /** 4350 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 4351 * @phba: pointer to lpfc hba data structure. 4352 * 4353 * This routine is invoked to destroy HBA physical port and the associated 4354 * SCSI host. 4355 **/ 4356 static void 4357 lpfc_destroy_shost(struct lpfc_hba *phba) 4358 { 4359 struct lpfc_vport *vport = phba->pport; 4360 4361 /* Destroy physical port that associated with the SCSI host */ 4362 destroy_port(vport); 4363 4364 return; 4365 } 4366 4367 /** 4368 * lpfc_setup_bg - Setup Block guard structures and debug areas. 4369 * @phba: pointer to lpfc hba data structure. 4370 * @shost: the shost to be used to detect Block guard settings. 4371 * 4372 * This routine sets up the local Block guard protocol settings for @shost. 4373 * This routine also allocates memory for debugging bg buffers. 4374 **/ 4375 static void 4376 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 4377 { 4378 int pagecnt = 10; 4379 if (lpfc_prot_mask && lpfc_prot_guard) { 4380 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4381 "1478 Registering BlockGuard with the " 4382 "SCSI layer\n"); 4383 scsi_host_set_prot(shost, lpfc_prot_mask); 4384 scsi_host_set_guard(shost, lpfc_prot_guard); 4385 } 4386 if (!_dump_buf_data) { 4387 while (pagecnt) { 4388 spin_lock_init(&_dump_buf_lock); 4389 _dump_buf_data = 4390 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4391 if (_dump_buf_data) { 4392 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4393 "9043 BLKGRD: allocated %d pages for " 4394 "_dump_buf_data at 0x%p\n", 4395 (1 << pagecnt), _dump_buf_data); 4396 _dump_buf_data_order = pagecnt; 4397 memset(_dump_buf_data, 0, 4398 ((1 << PAGE_SHIFT) << pagecnt)); 4399 break; 4400 } else 4401 --pagecnt; 4402 } 4403 if (!_dump_buf_data_order) 4404 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4405 "9044 BLKGRD: ERROR unable to allocate " 4406 "memory for hexdump\n"); 4407 } else 4408 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4409 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 4410 "\n", _dump_buf_data); 4411 if (!_dump_buf_dif) { 4412 while (pagecnt) { 4413 _dump_buf_dif = 4414 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4415 if (_dump_buf_dif) { 4416 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4417 "9046 BLKGRD: allocated %d pages for " 4418 "_dump_buf_dif at 0x%p\n", 4419 (1 << pagecnt), _dump_buf_dif); 4420 _dump_buf_dif_order = pagecnt; 4421 memset(_dump_buf_dif, 0, 4422 ((1 << PAGE_SHIFT) << pagecnt)); 4423 break; 4424 } else 4425 --pagecnt; 4426 } 4427 if (!_dump_buf_dif_order) 4428 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4429 "9047 BLKGRD: ERROR unable to allocate " 4430 "memory for hexdump\n"); 4431 } else 4432 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4433 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 4434 _dump_buf_dif); 4435 } 4436 4437 /** 4438 * lpfc_post_init_setup - Perform necessary device post initialization setup. 4439 * @phba: pointer to lpfc hba data structure. 4440 * 4441 * This routine is invoked to perform all the necessary post initialization 4442 * setup for the device. 4443 **/ 4444 static void 4445 lpfc_post_init_setup(struct lpfc_hba *phba) 4446 { 4447 struct Scsi_Host *shost; 4448 struct lpfc_adapter_event_header adapter_event; 4449 4450 /* Get the default values for Model Name and Description */ 4451 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 4452 4453 /* 4454 * hba setup may have changed the hba_queue_depth so we need to 4455 * adjust the value of can_queue. 4456 */ 4457 shost = pci_get_drvdata(phba->pcidev); 4458 shost->can_queue = phba->cfg_hba_queue_depth - 10; 4459 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 4460 lpfc_setup_bg(phba, shost); 4461 4462 lpfc_host_attrib_init(shost); 4463 4464 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 4465 spin_lock_irq(shost->host_lock); 4466 lpfc_poll_start_timer(phba); 4467 spin_unlock_irq(shost->host_lock); 4468 } 4469 4470 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4471 "0428 Perform SCSI scan\n"); 4472 /* Send board arrival event to upper layer */ 4473 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 4474 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 4475 fc_host_post_vendor_event(shost, fc_get_event_number(), 4476 sizeof(adapter_event), 4477 (char *) &adapter_event, 4478 LPFC_NL_VENDOR_ID); 4479 return; 4480 } 4481 4482 /** 4483 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 4484 * @phba: pointer to lpfc hba data structure. 4485 * 4486 * This routine is invoked to set up the PCI device memory space for device 4487 * with SLI-3 interface spec. 4488 * 4489 * Return codes 4490 * 0 - successful 4491 * other values - error 4492 **/ 4493 static int 4494 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 4495 { 4496 struct pci_dev *pdev; 4497 unsigned long bar0map_len, bar2map_len; 4498 int i, hbq_count; 4499 void *ptr; 4500 int error = -ENODEV; 4501 4502 /* Obtain PCI device reference */ 4503 if (!phba->pcidev) 4504 return error; 4505 else 4506 pdev = phba->pcidev; 4507 4508 /* Set the device DMA mask size */ 4509 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) 4510 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) 4511 return error; 4512 4513 /* Get the bus address of Bar0 and Bar2 and the number of bytes 4514 * required by each mapping. 4515 */ 4516 phba->pci_bar0_map = pci_resource_start(pdev, 0); 4517 bar0map_len = pci_resource_len(pdev, 0); 4518 4519 phba->pci_bar2_map = pci_resource_start(pdev, 2); 4520 bar2map_len = pci_resource_len(pdev, 2); 4521 4522 /* Map HBA SLIM to a kernel virtual address. */ 4523 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 4524 if (!phba->slim_memmap_p) { 4525 dev_printk(KERN_ERR, &pdev->dev, 4526 "ioremap failed for SLIM memory.\n"); 4527 goto out; 4528 } 4529 4530 /* Map HBA Control Registers to a kernel virtual address. */ 4531 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 4532 if (!phba->ctrl_regs_memmap_p) { 4533 dev_printk(KERN_ERR, &pdev->dev, 4534 "ioremap failed for HBA control registers.\n"); 4535 goto out_iounmap_slim; 4536 } 4537 4538 /* Allocate memory for SLI-2 structures */ 4539 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 4540 SLI2_SLIM_SIZE, 4541 &phba->slim2p.phys, 4542 GFP_KERNEL); 4543 if (!phba->slim2p.virt) 4544 goto out_iounmap; 4545 4546 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 4547 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 4548 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 4549 phba->IOCBs = (phba->slim2p.virt + 4550 offsetof(struct lpfc_sli2_slim, IOCBs)); 4551 4552 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 4553 lpfc_sli_hbq_size(), 4554 &phba->hbqslimp.phys, 4555 GFP_KERNEL); 4556 if (!phba->hbqslimp.virt) 4557 goto out_free_slim; 4558 4559 hbq_count = lpfc_sli_hbq_count(); 4560 ptr = phba->hbqslimp.virt; 4561 for (i = 0; i < hbq_count; ++i) { 4562 phba->hbqs[i].hbq_virt = ptr; 4563 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4564 ptr += (lpfc_hbq_defs[i]->entry_count * 4565 sizeof(struct lpfc_hbq_entry)); 4566 } 4567 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 4568 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 4569 4570 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 4571 4572 INIT_LIST_HEAD(&phba->rb_pend_list); 4573 4574 phba->MBslimaddr = phba->slim_memmap_p; 4575 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 4576 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 4577 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 4578 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 4579 4580 return 0; 4581 4582 out_free_slim: 4583 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 4584 phba->slim2p.virt, phba->slim2p.phys); 4585 out_iounmap: 4586 iounmap(phba->ctrl_regs_memmap_p); 4587 out_iounmap_slim: 4588 iounmap(phba->slim_memmap_p); 4589 out: 4590 return error; 4591 } 4592 4593 /** 4594 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 4595 * @phba: pointer to lpfc hba data structure. 4596 * 4597 * This routine is invoked to unset the PCI device memory space for device 4598 * with SLI-3 interface spec. 4599 **/ 4600 static void 4601 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 4602 { 4603 struct pci_dev *pdev; 4604 4605 /* Obtain PCI device reference */ 4606 if (!phba->pcidev) 4607 return; 4608 else 4609 pdev = phba->pcidev; 4610 4611 /* Free coherent DMA memory allocated */ 4612 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 4613 phba->hbqslimp.virt, phba->hbqslimp.phys); 4614 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 4615 phba->slim2p.virt, phba->slim2p.phys); 4616 4617 /* I/O memory unmap */ 4618 iounmap(phba->ctrl_regs_memmap_p); 4619 iounmap(phba->slim_memmap_p); 4620 4621 return; 4622 } 4623 4624 /** 4625 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 4626 * @phba: pointer to lpfc hba data structure. 4627 * 4628 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 4629 * done and check status. 4630 * 4631 * Return 0 if successful, otherwise -ENODEV. 4632 **/ 4633 int 4634 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 4635 { 4636 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg, scratchpad; 4637 int i, port_error = -ENODEV; 4638 4639 if (!phba->sli4_hba.STAregaddr) 4640 return -ENODEV; 4641 4642 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 4643 for (i = 0; i < 3000; i++) { 4644 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr); 4645 /* Encounter fatal POST error, break out */ 4646 if (bf_get(lpfc_hst_state_perr, &sta_reg)) { 4647 port_error = -ENODEV; 4648 break; 4649 } 4650 if (LPFC_POST_STAGE_ARMFW_READY == 4651 bf_get(lpfc_hst_state_port_status, &sta_reg)) { 4652 port_error = 0; 4653 break; 4654 } 4655 msleep(10); 4656 } 4657 4658 if (port_error) 4659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4660 "1408 Failure HBA POST Status: sta_reg=0x%x, " 4661 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, " 4662 "dl=x%x, pstatus=x%x\n", sta_reg.word0, 4663 bf_get(lpfc_hst_state_perr, &sta_reg), 4664 bf_get(lpfc_hst_state_sfi, &sta_reg), 4665 bf_get(lpfc_hst_state_nip, &sta_reg), 4666 bf_get(lpfc_hst_state_ipc, &sta_reg), 4667 bf_get(lpfc_hst_state_xrom, &sta_reg), 4668 bf_get(lpfc_hst_state_dl, &sta_reg), 4669 bf_get(lpfc_hst_state_port_status, &sta_reg)); 4670 4671 /* Log device information */ 4672 scratchpad.word0 = readl(phba->sli4_hba.SCRATCHPADregaddr); 4673 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4674 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, " 4675 "FeatureL1=0x%x, FeatureL2=0x%x\n", 4676 bf_get(lpfc_scratchpad_chiptype, &scratchpad), 4677 bf_get(lpfc_scratchpad_slirev, &scratchpad), 4678 bf_get(lpfc_scratchpad_featurelevel1, &scratchpad), 4679 bf_get(lpfc_scratchpad_featurelevel2, &scratchpad)); 4680 phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr); 4681 phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr); 4682 /* With uncoverable error, log the error message and return error */ 4683 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr); 4684 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr); 4685 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 4686 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 4687 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4688 "1422 HBA Unrecoverable error: " 4689 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " 4690 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n", 4691 uerrlo_reg.word0, uerrhi_reg.word0, 4692 phba->sli4_hba.ue_mask_lo, 4693 phba->sli4_hba.ue_mask_hi); 4694 return -ENODEV; 4695 } 4696 4697 return port_error; 4698 } 4699 4700 /** 4701 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 4702 * @phba: pointer to lpfc hba data structure. 4703 * 4704 * This routine is invoked to set up SLI4 BAR0 PCI config space register 4705 * memory map. 4706 **/ 4707 static void 4708 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba) 4709 { 4710 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 4711 LPFC_UERR_STATUS_LO; 4712 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 4713 LPFC_UERR_STATUS_HI; 4714 phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 4715 LPFC_UE_MASK_LO; 4716 phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 4717 LPFC_UE_MASK_HI; 4718 phba->sli4_hba.SCRATCHPADregaddr = phba->sli4_hba.conf_regs_memmap_p + 4719 LPFC_SCRATCHPAD; 4720 } 4721 4722 /** 4723 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 4724 * @phba: pointer to lpfc hba data structure. 4725 * 4726 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 4727 * memory map. 4728 **/ 4729 static void 4730 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 4731 { 4732 4733 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4734 LPFC_HST_STATE; 4735 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4736 LPFC_HST_ISR0; 4737 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4738 LPFC_HST_IMR0; 4739 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4740 LPFC_HST_ISCR0; 4741 return; 4742 } 4743 4744 /** 4745 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 4746 * @phba: pointer to lpfc hba data structure. 4747 * @vf: virtual function number 4748 * 4749 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 4750 * based on the given viftual function number, @vf. 4751 * 4752 * Return 0 if successful, otherwise -ENODEV. 4753 **/ 4754 static int 4755 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 4756 { 4757 if (vf > LPFC_VIR_FUNC_MAX) 4758 return -ENODEV; 4759 4760 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4761 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 4762 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4763 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 4764 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4765 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 4766 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4767 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 4768 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4769 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 4770 return 0; 4771 } 4772 4773 /** 4774 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 4775 * @phba: pointer to lpfc hba data structure. 4776 * 4777 * This routine is invoked to create the bootstrap mailbox 4778 * region consistent with the SLI-4 interface spec. This 4779 * routine allocates all memory necessary to communicate 4780 * mailbox commands to the port and sets up all alignment 4781 * needs. No locks are expected to be held when calling 4782 * this routine. 4783 * 4784 * Return codes 4785 * 0 - successful 4786 * ENOMEM - could not allocated memory. 4787 **/ 4788 static int 4789 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 4790 { 4791 uint32_t bmbx_size; 4792 struct lpfc_dmabuf *dmabuf; 4793 struct dma_address *dma_address; 4794 uint32_t pa_addr; 4795 uint64_t phys_addr; 4796 4797 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4798 if (!dmabuf) 4799 return -ENOMEM; 4800 4801 /* 4802 * The bootstrap mailbox region is comprised of 2 parts 4803 * plus an alignment restriction of 16 bytes. 4804 */ 4805 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 4806 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4807 bmbx_size, 4808 &dmabuf->phys, 4809 GFP_KERNEL); 4810 if (!dmabuf->virt) { 4811 kfree(dmabuf); 4812 return -ENOMEM; 4813 } 4814 memset(dmabuf->virt, 0, bmbx_size); 4815 4816 /* 4817 * Initialize the bootstrap mailbox pointers now so that the register 4818 * operations are simple later. The mailbox dma address is required 4819 * to be 16-byte aligned. Also align the virtual memory as each 4820 * maibox is copied into the bmbx mailbox region before issuing the 4821 * command to the port. 4822 */ 4823 phba->sli4_hba.bmbx.dmabuf = dmabuf; 4824 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 4825 4826 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 4827 LPFC_ALIGN_16_BYTE); 4828 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 4829 LPFC_ALIGN_16_BYTE); 4830 4831 /* 4832 * Set the high and low physical addresses now. The SLI4 alignment 4833 * requirement is 16 bytes and the mailbox is posted to the port 4834 * as two 30-bit addresses. The other data is a bit marking whether 4835 * the 30-bit address is the high or low address. 4836 * Upcast bmbx aphys to 64bits so shift instruction compiles 4837 * clean on 32 bit machines. 4838 */ 4839 dma_address = &phba->sli4_hba.bmbx.dma_address; 4840 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 4841 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 4842 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 4843 LPFC_BMBX_BIT1_ADDR_HI); 4844 4845 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 4846 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 4847 LPFC_BMBX_BIT1_ADDR_LO); 4848 return 0; 4849 } 4850 4851 /** 4852 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 4853 * @phba: pointer to lpfc hba data structure. 4854 * 4855 * This routine is invoked to teardown the bootstrap mailbox 4856 * region and release all host resources. This routine requires 4857 * the caller to ensure all mailbox commands recovered, no 4858 * additional mailbox comands are sent, and interrupts are disabled 4859 * before calling this routine. 4860 * 4861 **/ 4862 static void 4863 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 4864 { 4865 dma_free_coherent(&phba->pcidev->dev, 4866 phba->sli4_hba.bmbx.bmbx_size, 4867 phba->sli4_hba.bmbx.dmabuf->virt, 4868 phba->sli4_hba.bmbx.dmabuf->phys); 4869 4870 kfree(phba->sli4_hba.bmbx.dmabuf); 4871 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 4872 } 4873 4874 /** 4875 * lpfc_sli4_read_config - Get the config parameters. 4876 * @phba: pointer to lpfc hba data structure. 4877 * 4878 * This routine is invoked to read the configuration parameters from the HBA. 4879 * The configuration parameters are used to set the base and maximum values 4880 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 4881 * allocation for the port. 4882 * 4883 * Return codes 4884 * 0 - successful 4885 * ENOMEM - No availble memory 4886 * EIO - The mailbox failed to complete successfully. 4887 **/ 4888 static int 4889 lpfc_sli4_read_config(struct lpfc_hba *phba) 4890 { 4891 LPFC_MBOXQ_t *pmb; 4892 struct lpfc_mbx_read_config *rd_config; 4893 uint32_t rc = 0; 4894 4895 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4896 if (!pmb) { 4897 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4898 "2011 Unable to allocate memory for issuing " 4899 "SLI_CONFIG_SPECIAL mailbox command\n"); 4900 return -ENOMEM; 4901 } 4902 4903 lpfc_read_config(phba, pmb); 4904 4905 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 4906 if (rc != MBX_SUCCESS) { 4907 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4908 "2012 Mailbox failed , mbxCmd x%x " 4909 "READ_CONFIG, mbxStatus x%x\n", 4910 bf_get(lpfc_mqe_command, &pmb->u.mqe), 4911 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 4912 rc = -EIO; 4913 } else { 4914 rd_config = &pmb->u.mqe.un.rd_config; 4915 phba->sli4_hba.max_cfg_param.max_xri = 4916 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 4917 phba->sli4_hba.max_cfg_param.xri_base = 4918 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 4919 phba->sli4_hba.max_cfg_param.max_vpi = 4920 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 4921 phba->sli4_hba.max_cfg_param.vpi_base = 4922 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 4923 phba->sli4_hba.max_cfg_param.max_rpi = 4924 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 4925 phba->sli4_hba.max_cfg_param.rpi_base = 4926 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 4927 phba->sli4_hba.max_cfg_param.max_vfi = 4928 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 4929 phba->sli4_hba.max_cfg_param.vfi_base = 4930 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 4931 phba->sli4_hba.max_cfg_param.max_fcfi = 4932 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 4933 phba->sli4_hba.max_cfg_param.fcfi_base = 4934 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config); 4935 phba->sli4_hba.max_cfg_param.max_eq = 4936 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 4937 phba->sli4_hba.max_cfg_param.max_rq = 4938 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 4939 phba->sli4_hba.max_cfg_param.max_wq = 4940 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 4941 phba->sli4_hba.max_cfg_param.max_cq = 4942 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 4943 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 4944 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 4945 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 4946 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 4947 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4948 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 4949 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 4950 phba->max_vports = phba->max_vpi; 4951 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4952 "2003 cfg params XRI(B:%d M:%d), " 4953 "VPI(B:%d M:%d) " 4954 "VFI(B:%d M:%d) " 4955 "RPI(B:%d M:%d) " 4956 "FCFI(B:%d M:%d)\n", 4957 phba->sli4_hba.max_cfg_param.xri_base, 4958 phba->sli4_hba.max_cfg_param.max_xri, 4959 phba->sli4_hba.max_cfg_param.vpi_base, 4960 phba->sli4_hba.max_cfg_param.max_vpi, 4961 phba->sli4_hba.max_cfg_param.vfi_base, 4962 phba->sli4_hba.max_cfg_param.max_vfi, 4963 phba->sli4_hba.max_cfg_param.rpi_base, 4964 phba->sli4_hba.max_cfg_param.max_rpi, 4965 phba->sli4_hba.max_cfg_param.fcfi_base, 4966 phba->sli4_hba.max_cfg_param.max_fcfi); 4967 } 4968 mempool_free(pmb, phba->mbox_mem_pool); 4969 4970 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 4971 if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri)) 4972 phba->cfg_hba_queue_depth = 4973 phba->sli4_hba.max_cfg_param.max_xri; 4974 return rc; 4975 } 4976 4977 /** 4978 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order. 4979 * @phba: pointer to lpfc hba data structure. 4980 * 4981 * This routine is invoked to setup the host-side endian order to the 4982 * HBA consistent with the SLI-4 interface spec. 4983 * 4984 * Return codes 4985 * 0 - successful 4986 * ENOMEM - No availble memory 4987 * EIO - The mailbox failed to complete successfully. 4988 **/ 4989 static int 4990 lpfc_setup_endian_order(struct lpfc_hba *phba) 4991 { 4992 LPFC_MBOXQ_t *mboxq; 4993 uint32_t rc = 0; 4994 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 4995 HOST_ENDIAN_HIGH_WORD1}; 4996 4997 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4998 if (!mboxq) { 4999 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5000 "0492 Unable to allocate memory for issuing " 5001 "SLI_CONFIG_SPECIAL mailbox command\n"); 5002 return -ENOMEM; 5003 } 5004 5005 /* 5006 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two 5007 * words to contain special data values and no other data. 5008 */ 5009 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 5010 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 5011 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5012 if (rc != MBX_SUCCESS) { 5013 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5014 "0493 SLI_CONFIG_SPECIAL mailbox failed with " 5015 "status x%x\n", 5016 rc); 5017 rc = -EIO; 5018 } 5019 5020 mempool_free(mboxq, phba->mbox_mem_pool); 5021 return rc; 5022 } 5023 5024 /** 5025 * lpfc_sli4_queue_create - Create all the SLI4 queues 5026 * @phba: pointer to lpfc hba data structure. 5027 * 5028 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 5029 * operation. For each SLI4 queue type, the parameters such as queue entry 5030 * count (queue depth) shall be taken from the module parameter. For now, 5031 * we just use some constant number as place holder. 5032 * 5033 * Return codes 5034 * 0 - successful 5035 * ENOMEM - No availble memory 5036 * EIO - The mailbox failed to complete successfully. 5037 **/ 5038 static int 5039 lpfc_sli4_queue_create(struct lpfc_hba *phba) 5040 { 5041 struct lpfc_queue *qdesc; 5042 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5043 int cfg_fcp_wq_count; 5044 int cfg_fcp_eq_count; 5045 5046 /* 5047 * Sanity check for confiugred queue parameters against the run-time 5048 * device parameters 5049 */ 5050 5051 /* Sanity check on FCP fast-path WQ parameters */ 5052 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 5053 if (cfg_fcp_wq_count > 5054 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 5055 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 5056 LPFC_SP_WQN_DEF; 5057 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 5058 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5059 "2581 Not enough WQs (%d) from " 5060 "the pci function for supporting " 5061 "FCP WQs (%d)\n", 5062 phba->sli4_hba.max_cfg_param.max_wq, 5063 phba->cfg_fcp_wq_count); 5064 goto out_error; 5065 } 5066 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5067 "2582 Not enough WQs (%d) from the pci " 5068 "function for supporting the requested " 5069 "FCP WQs (%d), the actual FCP WQs can " 5070 "be supported: %d\n", 5071 phba->sli4_hba.max_cfg_param.max_wq, 5072 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 5073 } 5074 /* The actual number of FCP work queues adopted */ 5075 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 5076 5077 /* Sanity check on FCP fast-path EQ parameters */ 5078 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 5079 if (cfg_fcp_eq_count > 5080 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 5081 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 5082 LPFC_SP_EQN_DEF; 5083 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 5084 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5085 "2574 Not enough EQs (%d) from the " 5086 "pci function for supporting FCP " 5087 "EQs (%d)\n", 5088 phba->sli4_hba.max_cfg_param.max_eq, 5089 phba->cfg_fcp_eq_count); 5090 goto out_error; 5091 } 5092 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5093 "2575 Not enough EQs (%d) from the pci " 5094 "function for supporting the requested " 5095 "FCP EQs (%d), the actual FCP EQs can " 5096 "be supported: %d\n", 5097 phba->sli4_hba.max_cfg_param.max_eq, 5098 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 5099 } 5100 /* It does not make sense to have more EQs than WQs */ 5101 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 5102 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5103 "2593 The FCP EQ count(%d) cannot be greater " 5104 "than the FCP WQ count(%d), limiting the " 5105 "FCP EQ count to %d\n", cfg_fcp_eq_count, 5106 phba->cfg_fcp_wq_count, 5107 phba->cfg_fcp_wq_count); 5108 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 5109 } 5110 /* The actual number of FCP event queues adopted */ 5111 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 5112 /* The overall number of event queues used */ 5113 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 5114 5115 /* 5116 * Create Event Queues (EQs) 5117 */ 5118 5119 /* Get EQ depth from module parameter, fake the default for now */ 5120 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 5121 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 5122 5123 /* Create slow path event queue */ 5124 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5125 phba->sli4_hba.eq_ecount); 5126 if (!qdesc) { 5127 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5128 "0496 Failed allocate slow-path EQ\n"); 5129 goto out_error; 5130 } 5131 phba->sli4_hba.sp_eq = qdesc; 5132 5133 /* Create fast-path FCP Event Queue(s) */ 5134 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 5135 phba->cfg_fcp_eq_count), GFP_KERNEL); 5136 if (!phba->sli4_hba.fp_eq) { 5137 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5138 "2576 Failed allocate memory for fast-path " 5139 "EQ record array\n"); 5140 goto out_free_sp_eq; 5141 } 5142 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5143 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5144 phba->sli4_hba.eq_ecount); 5145 if (!qdesc) { 5146 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5147 "0497 Failed allocate fast-path EQ\n"); 5148 goto out_free_fp_eq; 5149 } 5150 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 5151 } 5152 5153 /* 5154 * Create Complete Queues (CQs) 5155 */ 5156 5157 /* Get CQ depth from module parameter, fake the default for now */ 5158 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 5159 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 5160 5161 /* Create slow-path Mailbox Command Complete Queue */ 5162 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5163 phba->sli4_hba.cq_ecount); 5164 if (!qdesc) { 5165 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5166 "0500 Failed allocate slow-path mailbox CQ\n"); 5167 goto out_free_fp_eq; 5168 } 5169 phba->sli4_hba.mbx_cq = qdesc; 5170 5171 /* Create slow-path ELS Complete Queue */ 5172 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5173 phba->sli4_hba.cq_ecount); 5174 if (!qdesc) { 5175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5176 "0501 Failed allocate slow-path ELS CQ\n"); 5177 goto out_free_mbx_cq; 5178 } 5179 phba->sli4_hba.els_cq = qdesc; 5180 5181 5182 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ 5183 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 5184 phba->cfg_fcp_eq_count), GFP_KERNEL); 5185 if (!phba->sli4_hba.fcp_cq) { 5186 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5187 "2577 Failed allocate memory for fast-path " 5188 "CQ record array\n"); 5189 goto out_free_els_cq; 5190 } 5191 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5192 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5193 phba->sli4_hba.cq_ecount); 5194 if (!qdesc) { 5195 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5196 "0499 Failed allocate fast-path FCP " 5197 "CQ (%d)\n", fcp_cqidx); 5198 goto out_free_fcp_cq; 5199 } 5200 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 5201 } 5202 5203 /* Create Mailbox Command Queue */ 5204 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 5205 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 5206 5207 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 5208 phba->sli4_hba.mq_ecount); 5209 if (!qdesc) { 5210 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5211 "0505 Failed allocate slow-path MQ\n"); 5212 goto out_free_fcp_cq; 5213 } 5214 phba->sli4_hba.mbx_wq = qdesc; 5215 5216 /* 5217 * Create all the Work Queues (WQs) 5218 */ 5219 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 5220 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 5221 5222 /* Create slow-path ELS Work Queue */ 5223 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5224 phba->sli4_hba.wq_ecount); 5225 if (!qdesc) { 5226 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5227 "0504 Failed allocate slow-path ELS WQ\n"); 5228 goto out_free_mbx_wq; 5229 } 5230 phba->sli4_hba.els_wq = qdesc; 5231 5232 /* Create fast-path FCP Work Queue(s) */ 5233 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 5234 phba->cfg_fcp_wq_count), GFP_KERNEL); 5235 if (!phba->sli4_hba.fcp_wq) { 5236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5237 "2578 Failed allocate memory for fast-path " 5238 "WQ record array\n"); 5239 goto out_free_els_wq; 5240 } 5241 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5242 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5243 phba->sli4_hba.wq_ecount); 5244 if (!qdesc) { 5245 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5246 "0503 Failed allocate fast-path FCP " 5247 "WQ (%d)\n", fcp_wqidx); 5248 goto out_free_fcp_wq; 5249 } 5250 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 5251 } 5252 5253 /* 5254 * Create Receive Queue (RQ) 5255 */ 5256 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 5257 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 5258 5259 /* Create Receive Queue for header */ 5260 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5261 phba->sli4_hba.rq_ecount); 5262 if (!qdesc) { 5263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5264 "0506 Failed allocate receive HRQ\n"); 5265 goto out_free_fcp_wq; 5266 } 5267 phba->sli4_hba.hdr_rq = qdesc; 5268 5269 /* Create Receive Queue for data */ 5270 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5271 phba->sli4_hba.rq_ecount); 5272 if (!qdesc) { 5273 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5274 "0507 Failed allocate receive DRQ\n"); 5275 goto out_free_hdr_rq; 5276 } 5277 phba->sli4_hba.dat_rq = qdesc; 5278 5279 return 0; 5280 5281 out_free_hdr_rq: 5282 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5283 phba->sli4_hba.hdr_rq = NULL; 5284 out_free_fcp_wq: 5285 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 5286 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 5287 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 5288 } 5289 kfree(phba->sli4_hba.fcp_wq); 5290 out_free_els_wq: 5291 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5292 phba->sli4_hba.els_wq = NULL; 5293 out_free_mbx_wq: 5294 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5295 phba->sli4_hba.mbx_wq = NULL; 5296 out_free_fcp_cq: 5297 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 5298 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 5299 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 5300 } 5301 kfree(phba->sli4_hba.fcp_cq); 5302 out_free_els_cq: 5303 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5304 phba->sli4_hba.els_cq = NULL; 5305 out_free_mbx_cq: 5306 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5307 phba->sli4_hba.mbx_cq = NULL; 5308 out_free_fp_eq: 5309 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 5310 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 5311 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 5312 } 5313 kfree(phba->sli4_hba.fp_eq); 5314 out_free_sp_eq: 5315 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5316 phba->sli4_hba.sp_eq = NULL; 5317 out_error: 5318 return -ENOMEM; 5319 } 5320 5321 /** 5322 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 5323 * @phba: pointer to lpfc hba data structure. 5324 * 5325 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 5326 * operation. 5327 * 5328 * Return codes 5329 * 0 - successful 5330 * ENOMEM - No availble memory 5331 * EIO - The mailbox failed to complete successfully. 5332 **/ 5333 static void 5334 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 5335 { 5336 int fcp_qidx; 5337 5338 /* Release mailbox command work queue */ 5339 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5340 phba->sli4_hba.mbx_wq = NULL; 5341 5342 /* Release ELS work queue */ 5343 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5344 phba->sli4_hba.els_wq = NULL; 5345 5346 /* Release FCP work queue */ 5347 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5348 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 5349 kfree(phba->sli4_hba.fcp_wq); 5350 phba->sli4_hba.fcp_wq = NULL; 5351 5352 /* Release unsolicited receive queue */ 5353 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5354 phba->sli4_hba.hdr_rq = NULL; 5355 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 5356 phba->sli4_hba.dat_rq = NULL; 5357 5358 /* Release ELS complete queue */ 5359 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5360 phba->sli4_hba.els_cq = NULL; 5361 5362 /* Release mailbox command complete queue */ 5363 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5364 phba->sli4_hba.mbx_cq = NULL; 5365 5366 /* Release FCP response complete queue */ 5367 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5368 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 5369 kfree(phba->sli4_hba.fcp_cq); 5370 phba->sli4_hba.fcp_cq = NULL; 5371 5372 /* Release fast-path event queue */ 5373 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5374 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 5375 kfree(phba->sli4_hba.fp_eq); 5376 phba->sli4_hba.fp_eq = NULL; 5377 5378 /* Release slow-path event queue */ 5379 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5380 phba->sli4_hba.sp_eq = NULL; 5381 5382 return; 5383 } 5384 5385 /** 5386 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 5387 * @phba: pointer to lpfc hba data structure. 5388 * 5389 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 5390 * operation. 5391 * 5392 * Return codes 5393 * 0 - successful 5394 * ENOMEM - No availble memory 5395 * EIO - The mailbox failed to complete successfully. 5396 **/ 5397 int 5398 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 5399 { 5400 int rc = -ENOMEM; 5401 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5402 int fcp_cq_index = 0; 5403 5404 /* 5405 * Set up Event Queues (EQs) 5406 */ 5407 5408 /* Set up slow-path event queue */ 5409 if (!phba->sli4_hba.sp_eq) { 5410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5411 "0520 Slow-path EQ not allocated\n"); 5412 goto out_error; 5413 } 5414 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 5415 LPFC_SP_DEF_IMAX); 5416 if (rc) { 5417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5418 "0521 Failed setup of slow-path EQ: " 5419 "rc = 0x%x\n", rc); 5420 goto out_error; 5421 } 5422 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5423 "2583 Slow-path EQ setup: queue-id=%d\n", 5424 phba->sli4_hba.sp_eq->queue_id); 5425 5426 /* Set up fast-path event queue */ 5427 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5428 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 5429 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5430 "0522 Fast-path EQ (%d) not " 5431 "allocated\n", fcp_eqidx); 5432 goto out_destroy_fp_eq; 5433 } 5434 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 5435 phba->cfg_fcp_imax); 5436 if (rc) { 5437 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5438 "0523 Failed setup of fast-path EQ " 5439 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 5440 goto out_destroy_fp_eq; 5441 } 5442 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5443 "2584 Fast-path EQ setup: " 5444 "queue[%d]-id=%d\n", fcp_eqidx, 5445 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 5446 } 5447 5448 /* 5449 * Set up Complete Queues (CQs) 5450 */ 5451 5452 /* Set up slow-path MBOX Complete Queue as the first CQ */ 5453 if (!phba->sli4_hba.mbx_cq) { 5454 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5455 "0528 Mailbox CQ not allocated\n"); 5456 goto out_destroy_fp_eq; 5457 } 5458 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 5459 LPFC_MCQ, LPFC_MBOX); 5460 if (rc) { 5461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5462 "0529 Failed setup of slow-path mailbox CQ: " 5463 "rc = 0x%x\n", rc); 5464 goto out_destroy_fp_eq; 5465 } 5466 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5467 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 5468 phba->sli4_hba.mbx_cq->queue_id, 5469 phba->sli4_hba.sp_eq->queue_id); 5470 5471 /* Set up slow-path ELS Complete Queue */ 5472 if (!phba->sli4_hba.els_cq) { 5473 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5474 "0530 ELS CQ not allocated\n"); 5475 goto out_destroy_mbx_cq; 5476 } 5477 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 5478 LPFC_WCQ, LPFC_ELS); 5479 if (rc) { 5480 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5481 "0531 Failed setup of slow-path ELS CQ: " 5482 "rc = 0x%x\n", rc); 5483 goto out_destroy_mbx_cq; 5484 } 5485 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5486 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 5487 phba->sli4_hba.els_cq->queue_id, 5488 phba->sli4_hba.sp_eq->queue_id); 5489 5490 /* Set up fast-path FCP Response Complete Queue */ 5491 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5492 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 5493 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5494 "0526 Fast-path FCP CQ (%d) not " 5495 "allocated\n", fcp_cqidx); 5496 goto out_destroy_fcp_cq; 5497 } 5498 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 5499 phba->sli4_hba.fp_eq[fcp_cqidx], 5500 LPFC_WCQ, LPFC_FCP); 5501 if (rc) { 5502 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5503 "0527 Failed setup of fast-path FCP " 5504 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 5505 goto out_destroy_fcp_cq; 5506 } 5507 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5508 "2588 FCP CQ setup: cq[%d]-id=%d, " 5509 "parent eq[%d]-id=%d\n", 5510 fcp_cqidx, 5511 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 5512 fcp_cqidx, 5513 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id); 5514 } 5515 5516 /* 5517 * Set up all the Work Queues (WQs) 5518 */ 5519 5520 /* Set up Mailbox Command Queue */ 5521 if (!phba->sli4_hba.mbx_wq) { 5522 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5523 "0538 Slow-path MQ not allocated\n"); 5524 goto out_destroy_fcp_cq; 5525 } 5526 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 5527 phba->sli4_hba.mbx_cq, LPFC_MBOX); 5528 if (rc) { 5529 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5530 "0539 Failed setup of slow-path MQ: " 5531 "rc = 0x%x\n", rc); 5532 goto out_destroy_fcp_cq; 5533 } 5534 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5535 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 5536 phba->sli4_hba.mbx_wq->queue_id, 5537 phba->sli4_hba.mbx_cq->queue_id); 5538 5539 /* Set up slow-path ELS Work Queue */ 5540 if (!phba->sli4_hba.els_wq) { 5541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5542 "0536 Slow-path ELS WQ not allocated\n"); 5543 goto out_destroy_mbx_wq; 5544 } 5545 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 5546 phba->sli4_hba.els_cq, LPFC_ELS); 5547 if (rc) { 5548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5549 "0537 Failed setup of slow-path ELS WQ: " 5550 "rc = 0x%x\n", rc); 5551 goto out_destroy_mbx_wq; 5552 } 5553 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5554 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 5555 phba->sli4_hba.els_wq->queue_id, 5556 phba->sli4_hba.els_cq->queue_id); 5557 5558 /* Set up fast-path FCP Work Queue */ 5559 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5560 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 5561 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5562 "0534 Fast-path FCP WQ (%d) not " 5563 "allocated\n", fcp_wqidx); 5564 goto out_destroy_fcp_wq; 5565 } 5566 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 5567 phba->sli4_hba.fcp_cq[fcp_cq_index], 5568 LPFC_FCP); 5569 if (rc) { 5570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5571 "0535 Failed setup of fast-path FCP " 5572 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 5573 goto out_destroy_fcp_wq; 5574 } 5575 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5576 "2591 FCP WQ setup: wq[%d]-id=%d, " 5577 "parent cq[%d]-id=%d\n", 5578 fcp_wqidx, 5579 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 5580 fcp_cq_index, 5581 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 5582 /* Round robin FCP Work Queue's Completion Queue assignment */ 5583 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count); 5584 } 5585 5586 /* 5587 * Create Receive Queue (RQ) 5588 */ 5589 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 5590 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5591 "0540 Receive Queue not allocated\n"); 5592 goto out_destroy_fcp_wq; 5593 } 5594 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 5595 phba->sli4_hba.els_cq, LPFC_USOL); 5596 if (rc) { 5597 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5598 "0541 Failed setup of Receive Queue: " 5599 "rc = 0x%x\n", rc); 5600 goto out_destroy_fcp_wq; 5601 } 5602 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5603 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 5604 "parent cq-id=%d\n", 5605 phba->sli4_hba.hdr_rq->queue_id, 5606 phba->sli4_hba.dat_rq->queue_id, 5607 phba->sli4_hba.els_cq->queue_id); 5608 return 0; 5609 5610 out_destroy_fcp_wq: 5611 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 5612 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 5613 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 5614 out_destroy_mbx_wq: 5615 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 5616 out_destroy_fcp_cq: 5617 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 5618 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 5619 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 5620 out_destroy_mbx_cq: 5621 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 5622 out_destroy_fp_eq: 5623 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 5624 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 5625 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 5626 out_error: 5627 return rc; 5628 } 5629 5630 /** 5631 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 5632 * @phba: pointer to lpfc hba data structure. 5633 * 5634 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 5635 * operation. 5636 * 5637 * Return codes 5638 * 0 - successful 5639 * ENOMEM - No availble memory 5640 * EIO - The mailbox failed to complete successfully. 5641 **/ 5642 void 5643 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 5644 { 5645 int fcp_qidx; 5646 5647 /* Unset mailbox command work queue */ 5648 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 5649 /* Unset ELS work queue */ 5650 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 5651 /* Unset unsolicited receive queue */ 5652 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 5653 /* Unset FCP work queue */ 5654 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5655 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 5656 /* Unset mailbox command complete queue */ 5657 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 5658 /* Unset ELS complete queue */ 5659 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 5660 /* Unset FCP response complete queue */ 5661 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5662 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 5663 /* Unset fast-path event queue */ 5664 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5665 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 5666 /* Unset slow-path event queue */ 5667 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 5668 } 5669 5670 /** 5671 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 5672 * @phba: pointer to lpfc hba data structure. 5673 * 5674 * This routine is invoked to allocate and set up a pool of completion queue 5675 * events. The body of the completion queue event is a completion queue entry 5676 * CQE. For now, this pool is used for the interrupt service routine to queue 5677 * the following HBA completion queue events for the worker thread to process: 5678 * - Mailbox asynchronous events 5679 * - Receive queue completion unsolicited events 5680 * Later, this can be used for all the slow-path events. 5681 * 5682 * Return codes 5683 * 0 - successful 5684 * -ENOMEM - No availble memory 5685 **/ 5686 static int 5687 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 5688 { 5689 struct lpfc_cq_event *cq_event; 5690 int i; 5691 5692 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 5693 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 5694 if (!cq_event) 5695 goto out_pool_create_fail; 5696 list_add_tail(&cq_event->list, 5697 &phba->sli4_hba.sp_cqe_event_pool); 5698 } 5699 return 0; 5700 5701 out_pool_create_fail: 5702 lpfc_sli4_cq_event_pool_destroy(phba); 5703 return -ENOMEM; 5704 } 5705 5706 /** 5707 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 5708 * @phba: pointer to lpfc hba data structure. 5709 * 5710 * This routine is invoked to free the pool of completion queue events at 5711 * driver unload time. Note that, it is the responsibility of the driver 5712 * cleanup routine to free all the outstanding completion-queue events 5713 * allocated from this pool back into the pool before invoking this routine 5714 * to destroy the pool. 5715 **/ 5716 static void 5717 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 5718 { 5719 struct lpfc_cq_event *cq_event, *next_cq_event; 5720 5721 list_for_each_entry_safe(cq_event, next_cq_event, 5722 &phba->sli4_hba.sp_cqe_event_pool, list) { 5723 list_del(&cq_event->list); 5724 kfree(cq_event); 5725 } 5726 } 5727 5728 /** 5729 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 5730 * @phba: pointer to lpfc hba data structure. 5731 * 5732 * This routine is the lock free version of the API invoked to allocate a 5733 * completion-queue event from the free pool. 5734 * 5735 * Return: Pointer to the newly allocated completion-queue event if successful 5736 * NULL otherwise. 5737 **/ 5738 struct lpfc_cq_event * 5739 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 5740 { 5741 struct lpfc_cq_event *cq_event = NULL; 5742 5743 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 5744 struct lpfc_cq_event, list); 5745 return cq_event; 5746 } 5747 5748 /** 5749 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 5750 * @phba: pointer to lpfc hba data structure. 5751 * 5752 * This routine is the lock version of the API invoked to allocate a 5753 * completion-queue event from the free pool. 5754 * 5755 * Return: Pointer to the newly allocated completion-queue event if successful 5756 * NULL otherwise. 5757 **/ 5758 struct lpfc_cq_event * 5759 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 5760 { 5761 struct lpfc_cq_event *cq_event; 5762 unsigned long iflags; 5763 5764 spin_lock_irqsave(&phba->hbalock, iflags); 5765 cq_event = __lpfc_sli4_cq_event_alloc(phba); 5766 spin_unlock_irqrestore(&phba->hbalock, iflags); 5767 return cq_event; 5768 } 5769 5770 /** 5771 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 5772 * @phba: pointer to lpfc hba data structure. 5773 * @cq_event: pointer to the completion queue event to be freed. 5774 * 5775 * This routine is the lock free version of the API invoked to release a 5776 * completion-queue event back into the free pool. 5777 **/ 5778 void 5779 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 5780 struct lpfc_cq_event *cq_event) 5781 { 5782 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 5783 } 5784 5785 /** 5786 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 5787 * @phba: pointer to lpfc hba data structure. 5788 * @cq_event: pointer to the completion queue event to be freed. 5789 * 5790 * This routine is the lock version of the API invoked to release a 5791 * completion-queue event back into the free pool. 5792 **/ 5793 void 5794 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 5795 struct lpfc_cq_event *cq_event) 5796 { 5797 unsigned long iflags; 5798 spin_lock_irqsave(&phba->hbalock, iflags); 5799 __lpfc_sli4_cq_event_release(phba, cq_event); 5800 spin_unlock_irqrestore(&phba->hbalock, iflags); 5801 } 5802 5803 /** 5804 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 5805 * @phba: pointer to lpfc hba data structure. 5806 * 5807 * This routine is to free all the pending completion-queue events to the 5808 * back into the free pool for device reset. 5809 **/ 5810 static void 5811 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 5812 { 5813 LIST_HEAD(cqelist); 5814 struct lpfc_cq_event *cqe; 5815 unsigned long iflags; 5816 5817 /* Retrieve all the pending WCQEs from pending WCQE lists */ 5818 spin_lock_irqsave(&phba->hbalock, iflags); 5819 /* Pending FCP XRI abort events */ 5820 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 5821 &cqelist); 5822 /* Pending ELS XRI abort events */ 5823 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 5824 &cqelist); 5825 /* Pending asynnc events */ 5826 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 5827 &cqelist); 5828 spin_unlock_irqrestore(&phba->hbalock, iflags); 5829 5830 while (!list_empty(&cqelist)) { 5831 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 5832 lpfc_sli4_cq_event_release(phba, cqe); 5833 } 5834 } 5835 5836 /** 5837 * lpfc_pci_function_reset - Reset pci function. 5838 * @phba: pointer to lpfc hba data structure. 5839 * 5840 * This routine is invoked to request a PCI function reset. It will destroys 5841 * all resources assigned to the PCI function which originates this request. 5842 * 5843 * Return codes 5844 * 0 - successful 5845 * ENOMEM - No availble memory 5846 * EIO - The mailbox failed to complete successfully. 5847 **/ 5848 int 5849 lpfc_pci_function_reset(struct lpfc_hba *phba) 5850 { 5851 LPFC_MBOXQ_t *mboxq; 5852 uint32_t rc = 0; 5853 uint32_t shdr_status, shdr_add_status; 5854 union lpfc_sli4_cfg_shdr *shdr; 5855 5856 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5857 if (!mboxq) { 5858 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5859 "0494 Unable to allocate memory for issuing " 5860 "SLI_FUNCTION_RESET mailbox command\n"); 5861 return -ENOMEM; 5862 } 5863 5864 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */ 5865 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 5866 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 5867 LPFC_SLI4_MBX_EMBED); 5868 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5869 shdr = (union lpfc_sli4_cfg_shdr *) 5870 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 5871 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 5872 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 5873 if (rc != MBX_TIMEOUT) 5874 mempool_free(mboxq, phba->mbox_mem_pool); 5875 if (shdr_status || shdr_add_status || rc) { 5876 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5877 "0495 SLI_FUNCTION_RESET mailbox failed with " 5878 "status x%x add_status x%x, mbx status x%x\n", 5879 shdr_status, shdr_add_status, rc); 5880 rc = -ENXIO; 5881 } 5882 return rc; 5883 } 5884 5885 /** 5886 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 5887 * @phba: pointer to lpfc hba data structure. 5888 * @cnt: number of nop mailbox commands to send. 5889 * 5890 * This routine is invoked to send a number @cnt of NOP mailbox command and 5891 * wait for each command to complete. 5892 * 5893 * Return: the number of NOP mailbox command completed. 5894 **/ 5895 static int 5896 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 5897 { 5898 LPFC_MBOXQ_t *mboxq; 5899 int length, cmdsent; 5900 uint32_t mbox_tmo; 5901 uint32_t rc = 0; 5902 uint32_t shdr_status, shdr_add_status; 5903 union lpfc_sli4_cfg_shdr *shdr; 5904 5905 if (cnt == 0) { 5906 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5907 "2518 Requested to send 0 NOP mailbox cmd\n"); 5908 return cnt; 5909 } 5910 5911 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5912 if (!mboxq) { 5913 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5914 "2519 Unable to allocate memory for issuing " 5915 "NOP mailbox command\n"); 5916 return 0; 5917 } 5918 5919 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 5920 length = (sizeof(struct lpfc_mbx_nop) - 5921 sizeof(struct lpfc_sli4_cfg_mhdr)); 5922 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 5923 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 5924 5925 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 5926 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 5927 if (!phba->sli4_hba.intr_enable) 5928 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5929 else 5930 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 5931 if (rc == MBX_TIMEOUT) 5932 break; 5933 /* Check return status */ 5934 shdr = (union lpfc_sli4_cfg_shdr *) 5935 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 5936 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 5937 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 5938 &shdr->response); 5939 if (shdr_status || shdr_add_status || rc) { 5940 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5941 "2520 NOP mailbox command failed " 5942 "status x%x add_status x%x mbx " 5943 "status x%x\n", shdr_status, 5944 shdr_add_status, rc); 5945 break; 5946 } 5947 } 5948 5949 if (rc != MBX_TIMEOUT) 5950 mempool_free(mboxq, phba->mbox_mem_pool); 5951 5952 return cmdsent; 5953 } 5954 5955 /** 5956 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device 5957 * @phba: pointer to lpfc hba data structure. 5958 * @fcfi: fcf index. 5959 * 5960 * This routine is invoked to unregister a FCFI from device. 5961 **/ 5962 void 5963 lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi) 5964 { 5965 LPFC_MBOXQ_t *mbox; 5966 uint32_t mbox_tmo; 5967 int rc; 5968 unsigned long flags; 5969 5970 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5971 5972 if (!mbox) 5973 return; 5974 5975 lpfc_unreg_fcfi(mbox, fcfi); 5976 5977 if (!phba->sli4_hba.intr_enable) 5978 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 5979 else { 5980 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 5981 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); 5982 } 5983 if (rc != MBX_TIMEOUT) 5984 mempool_free(mbox, phba->mbox_mem_pool); 5985 if (rc != MBX_SUCCESS) 5986 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5987 "2517 Unregister FCFI command failed " 5988 "status %d, mbxStatus x%x\n", rc, 5989 bf_get(lpfc_mqe_status, &mbox->u.mqe)); 5990 else { 5991 spin_lock_irqsave(&phba->hbalock, flags); 5992 /* Mark the FCFI is no longer registered */ 5993 phba->fcf.fcf_flag &= 5994 ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_DISCOVERED); 5995 spin_unlock_irqrestore(&phba->hbalock, flags); 5996 } 5997 } 5998 5999 /** 6000 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 6001 * @phba: pointer to lpfc hba data structure. 6002 * 6003 * This routine is invoked to set up the PCI device memory space for device 6004 * with SLI-4 interface spec. 6005 * 6006 * Return codes 6007 * 0 - successful 6008 * other values - error 6009 **/ 6010 static int 6011 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 6012 { 6013 struct pci_dev *pdev; 6014 unsigned long bar0map_len, bar1map_len, bar2map_len; 6015 int error = -ENODEV; 6016 6017 /* Obtain PCI device reference */ 6018 if (!phba->pcidev) 6019 return error; 6020 else 6021 pdev = phba->pcidev; 6022 6023 /* Set the device DMA mask size */ 6024 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) 6025 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) 6026 return error; 6027 6028 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the 6029 * number of bytes required by each mapping. They are actually 6030 * mapping to the PCI BAR regions 1, 2, and 4 by the SLI4 device. 6031 */ 6032 phba->pci_bar0_map = pci_resource_start(pdev, LPFC_SLI4_BAR0); 6033 bar0map_len = pci_resource_len(pdev, LPFC_SLI4_BAR0); 6034 6035 phba->pci_bar1_map = pci_resource_start(pdev, LPFC_SLI4_BAR1); 6036 bar1map_len = pci_resource_len(pdev, LPFC_SLI4_BAR1); 6037 6038 phba->pci_bar2_map = pci_resource_start(pdev, LPFC_SLI4_BAR2); 6039 bar2map_len = pci_resource_len(pdev, LPFC_SLI4_BAR2); 6040 6041 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */ 6042 phba->sli4_hba.conf_regs_memmap_p = 6043 ioremap(phba->pci_bar0_map, bar0map_len); 6044 if (!phba->sli4_hba.conf_regs_memmap_p) { 6045 dev_printk(KERN_ERR, &pdev->dev, 6046 "ioremap failed for SLI4 PCI config registers.\n"); 6047 goto out; 6048 } 6049 6050 /* Map SLI4 HBA Control Register base to a kernel virtual address. */ 6051 phba->sli4_hba.ctrl_regs_memmap_p = 6052 ioremap(phba->pci_bar1_map, bar1map_len); 6053 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 6054 dev_printk(KERN_ERR, &pdev->dev, 6055 "ioremap failed for SLI4 HBA control registers.\n"); 6056 goto out_iounmap_conf; 6057 } 6058 6059 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */ 6060 phba->sli4_hba.drbl_regs_memmap_p = 6061 ioremap(phba->pci_bar2_map, bar2map_len); 6062 if (!phba->sli4_hba.drbl_regs_memmap_p) { 6063 dev_printk(KERN_ERR, &pdev->dev, 6064 "ioremap failed for SLI4 HBA doorbell registers.\n"); 6065 goto out_iounmap_ctrl; 6066 } 6067 6068 /* Set up BAR0 PCI config space register memory map */ 6069 lpfc_sli4_bar0_register_memmap(phba); 6070 6071 /* Set up BAR1 register memory map */ 6072 lpfc_sli4_bar1_register_memmap(phba); 6073 6074 /* Set up BAR2 register memory map */ 6075 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 6076 if (error) 6077 goto out_iounmap_all; 6078 6079 return 0; 6080 6081 out_iounmap_all: 6082 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6083 out_iounmap_ctrl: 6084 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6085 out_iounmap_conf: 6086 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6087 out: 6088 return error; 6089 } 6090 6091 /** 6092 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 6093 * @phba: pointer to lpfc hba data structure. 6094 * 6095 * This routine is invoked to unset the PCI device memory space for device 6096 * with SLI-4 interface spec. 6097 **/ 6098 static void 6099 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 6100 { 6101 struct pci_dev *pdev; 6102 6103 /* Obtain PCI device reference */ 6104 if (!phba->pcidev) 6105 return; 6106 else 6107 pdev = phba->pcidev; 6108 6109 /* Free coherent DMA memory allocated */ 6110 6111 /* Unmap I/O memory space */ 6112 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6113 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6114 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6115 6116 return; 6117 } 6118 6119 /** 6120 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 6121 * @phba: pointer to lpfc hba data structure. 6122 * 6123 * This routine is invoked to enable the MSI-X interrupt vectors to device 6124 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 6125 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 6126 * invoked, enables either all or nothing, depending on the current 6127 * availability of PCI vector resources. The device driver is responsible 6128 * for calling the individual request_irq() to register each MSI-X vector 6129 * with a interrupt handler, which is done in this function. Note that 6130 * later when device is unloading, the driver should always call free_irq() 6131 * on all MSI-X vectors it has done request_irq() on before calling 6132 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 6133 * will be left with MSI-X enabled and leaks its vectors. 6134 * 6135 * Return codes 6136 * 0 - successful 6137 * other values - error 6138 **/ 6139 static int 6140 lpfc_sli_enable_msix(struct lpfc_hba *phba) 6141 { 6142 int rc, i; 6143 LPFC_MBOXQ_t *pmb; 6144 6145 /* Set up MSI-X multi-message vectors */ 6146 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6147 phba->msix_entries[i].entry = i; 6148 6149 /* Configure MSI-X capability structure */ 6150 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 6151 ARRAY_SIZE(phba->msix_entries)); 6152 if (rc) { 6153 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6154 "0420 PCI enable MSI-X failed (%d)\n", rc); 6155 goto msi_fail_out; 6156 } 6157 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6158 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6159 "0477 MSI-X entry[%d]: vector=x%x " 6160 "message=%d\n", i, 6161 phba->msix_entries[i].vector, 6162 phba->msix_entries[i].entry); 6163 /* 6164 * Assign MSI-X vectors to interrupt handlers 6165 */ 6166 6167 /* vector-0 is associated to slow-path handler */ 6168 rc = request_irq(phba->msix_entries[0].vector, 6169 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 6170 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6171 if (rc) { 6172 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6173 "0421 MSI-X slow-path request_irq failed " 6174 "(%d)\n", rc); 6175 goto msi_fail_out; 6176 } 6177 6178 /* vector-1 is associated to fast-path handler */ 6179 rc = request_irq(phba->msix_entries[1].vector, 6180 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 6181 LPFC_FP_DRIVER_HANDLER_NAME, phba); 6182 6183 if (rc) { 6184 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6185 "0429 MSI-X fast-path request_irq failed " 6186 "(%d)\n", rc); 6187 goto irq_fail_out; 6188 } 6189 6190 /* 6191 * Configure HBA MSI-X attention conditions to messages 6192 */ 6193 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6194 6195 if (!pmb) { 6196 rc = -ENOMEM; 6197 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6198 "0474 Unable to allocate memory for issuing " 6199 "MBOX_CONFIG_MSI command\n"); 6200 goto mem_fail_out; 6201 } 6202 rc = lpfc_config_msi(phba, pmb); 6203 if (rc) 6204 goto mbx_fail_out; 6205 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6206 if (rc != MBX_SUCCESS) { 6207 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 6208 "0351 Config MSI mailbox command failed, " 6209 "mbxCmd x%x, mbxStatus x%x\n", 6210 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 6211 goto mbx_fail_out; 6212 } 6213 6214 /* Free memory allocated for mailbox command */ 6215 mempool_free(pmb, phba->mbox_mem_pool); 6216 return rc; 6217 6218 mbx_fail_out: 6219 /* Free memory allocated for mailbox command */ 6220 mempool_free(pmb, phba->mbox_mem_pool); 6221 6222 mem_fail_out: 6223 /* free the irq already requested */ 6224 free_irq(phba->msix_entries[1].vector, phba); 6225 6226 irq_fail_out: 6227 /* free the irq already requested */ 6228 free_irq(phba->msix_entries[0].vector, phba); 6229 6230 msi_fail_out: 6231 /* Unconfigure MSI-X capability structure */ 6232 pci_disable_msix(phba->pcidev); 6233 return rc; 6234 } 6235 6236 /** 6237 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 6238 * @phba: pointer to lpfc hba data structure. 6239 * 6240 * This routine is invoked to release the MSI-X vectors and then disable the 6241 * MSI-X interrupt mode to device with SLI-3 interface spec. 6242 **/ 6243 static void 6244 lpfc_sli_disable_msix(struct lpfc_hba *phba) 6245 { 6246 int i; 6247 6248 /* Free up MSI-X multi-message vectors */ 6249 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6250 free_irq(phba->msix_entries[i].vector, phba); 6251 /* Disable MSI-X */ 6252 pci_disable_msix(phba->pcidev); 6253 6254 return; 6255 } 6256 6257 /** 6258 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 6259 * @phba: pointer to lpfc hba data structure. 6260 * 6261 * This routine is invoked to enable the MSI interrupt mode to device with 6262 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 6263 * enable the MSI vector. The device driver is responsible for calling the 6264 * request_irq() to register MSI vector with a interrupt the handler, which 6265 * is done in this function. 6266 * 6267 * Return codes 6268 * 0 - successful 6269 * other values - error 6270 */ 6271 static int 6272 lpfc_sli_enable_msi(struct lpfc_hba *phba) 6273 { 6274 int rc; 6275 6276 rc = pci_enable_msi(phba->pcidev); 6277 if (!rc) 6278 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6279 "0462 PCI enable MSI mode success.\n"); 6280 else { 6281 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6282 "0471 PCI enable MSI mode failed (%d)\n", rc); 6283 return rc; 6284 } 6285 6286 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6287 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6288 if (rc) { 6289 pci_disable_msi(phba->pcidev); 6290 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6291 "0478 MSI request_irq failed (%d)\n", rc); 6292 } 6293 return rc; 6294 } 6295 6296 /** 6297 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 6298 * @phba: pointer to lpfc hba data structure. 6299 * 6300 * This routine is invoked to disable the MSI interrupt mode to device with 6301 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 6302 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6303 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6304 * its vector. 6305 */ 6306 static void 6307 lpfc_sli_disable_msi(struct lpfc_hba *phba) 6308 { 6309 free_irq(phba->pcidev->irq, phba); 6310 pci_disable_msi(phba->pcidev); 6311 return; 6312 } 6313 6314 /** 6315 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 6316 * @phba: pointer to lpfc hba data structure. 6317 * 6318 * This routine is invoked to enable device interrupt and associate driver's 6319 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 6320 * spec. Depends on the interrupt mode configured to the driver, the driver 6321 * will try to fallback from the configured interrupt mode to an interrupt 6322 * mode which is supported by the platform, kernel, and device in the order 6323 * of: 6324 * MSI-X -> MSI -> IRQ. 6325 * 6326 * Return codes 6327 * 0 - successful 6328 * other values - error 6329 **/ 6330 static uint32_t 6331 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6332 { 6333 uint32_t intr_mode = LPFC_INTR_ERROR; 6334 int retval; 6335 6336 if (cfg_mode == 2) { 6337 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 6338 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 6339 if (!retval) { 6340 /* Now, try to enable MSI-X interrupt mode */ 6341 retval = lpfc_sli_enable_msix(phba); 6342 if (!retval) { 6343 /* Indicate initialization to MSI-X mode */ 6344 phba->intr_type = MSIX; 6345 intr_mode = 2; 6346 } 6347 } 6348 } 6349 6350 /* Fallback to MSI if MSI-X initialization failed */ 6351 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6352 retval = lpfc_sli_enable_msi(phba); 6353 if (!retval) { 6354 /* Indicate initialization to MSI mode */ 6355 phba->intr_type = MSI; 6356 intr_mode = 1; 6357 } 6358 } 6359 6360 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6361 if (phba->intr_type == NONE) { 6362 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6363 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6364 if (!retval) { 6365 /* Indicate initialization to INTx mode */ 6366 phba->intr_type = INTx; 6367 intr_mode = 0; 6368 } 6369 } 6370 return intr_mode; 6371 } 6372 6373 /** 6374 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 6375 * @phba: pointer to lpfc hba data structure. 6376 * 6377 * This routine is invoked to disable device interrupt and disassociate the 6378 * driver's interrupt handler(s) from interrupt vector(s) to device with 6379 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 6380 * release the interrupt vector(s) for the message signaled interrupt. 6381 **/ 6382 static void 6383 lpfc_sli_disable_intr(struct lpfc_hba *phba) 6384 { 6385 /* Disable the currently initialized interrupt mode */ 6386 if (phba->intr_type == MSIX) 6387 lpfc_sli_disable_msix(phba); 6388 else if (phba->intr_type == MSI) 6389 lpfc_sli_disable_msi(phba); 6390 else if (phba->intr_type == INTx) 6391 free_irq(phba->pcidev->irq, phba); 6392 6393 /* Reset interrupt management states */ 6394 phba->intr_type = NONE; 6395 phba->sli.slistat.sli_intr = 0; 6396 6397 return; 6398 } 6399 6400 /** 6401 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 6402 * @phba: pointer to lpfc hba data structure. 6403 * 6404 * This routine is invoked to enable the MSI-X interrupt vectors to device 6405 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 6406 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 6407 * enables either all or nothing, depending on the current availability of 6408 * PCI vector resources. The device driver is responsible for calling the 6409 * individual request_irq() to register each MSI-X vector with a interrupt 6410 * handler, which is done in this function. Note that later when device is 6411 * unloading, the driver should always call free_irq() on all MSI-X vectors 6412 * it has done request_irq() on before calling pci_disable_msix(). Failure 6413 * to do so results in a BUG_ON() and a device will be left with MSI-X 6414 * enabled and leaks its vectors. 6415 * 6416 * Return codes 6417 * 0 - successful 6418 * other values - error 6419 **/ 6420 static int 6421 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 6422 { 6423 int rc, index; 6424 6425 /* Set up MSI-X multi-message vectors */ 6426 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 6427 phba->sli4_hba.msix_entries[index].entry = index; 6428 6429 /* Configure MSI-X capability structure */ 6430 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 6431 phba->sli4_hba.cfg_eqn); 6432 if (rc) { 6433 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6434 "0484 PCI enable MSI-X failed (%d)\n", rc); 6435 goto msi_fail_out; 6436 } 6437 /* Log MSI-X vector assignment */ 6438 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 6439 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6440 "0489 MSI-X entry[%d]: vector=x%x " 6441 "message=%d\n", index, 6442 phba->sli4_hba.msix_entries[index].vector, 6443 phba->sli4_hba.msix_entries[index].entry); 6444 /* 6445 * Assign MSI-X vectors to interrupt handlers 6446 */ 6447 6448 /* The first vector must associated to slow-path handler for MQ */ 6449 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 6450 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 6451 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6452 if (rc) { 6453 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6454 "0485 MSI-X slow-path request_irq failed " 6455 "(%d)\n", rc); 6456 goto msi_fail_out; 6457 } 6458 6459 /* The rest of the vector(s) are associated to fast-path handler(s) */ 6460 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) { 6461 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 6462 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 6463 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 6464 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 6465 LPFC_FP_DRIVER_HANDLER_NAME, 6466 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 6467 if (rc) { 6468 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6469 "0486 MSI-X fast-path (%d) " 6470 "request_irq failed (%d)\n", index, rc); 6471 goto cfg_fail_out; 6472 } 6473 } 6474 6475 return rc; 6476 6477 cfg_fail_out: 6478 /* free the irq already requested */ 6479 for (--index; index >= 1; index--) 6480 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 6481 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 6482 6483 /* free the irq already requested */ 6484 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 6485 6486 msi_fail_out: 6487 /* Unconfigure MSI-X capability structure */ 6488 pci_disable_msix(phba->pcidev); 6489 return rc; 6490 } 6491 6492 /** 6493 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 6494 * @phba: pointer to lpfc hba data structure. 6495 * 6496 * This routine is invoked to release the MSI-X vectors and then disable the 6497 * MSI-X interrupt mode to device with SLI-4 interface spec. 6498 **/ 6499 static void 6500 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 6501 { 6502 int index; 6503 6504 /* Free up MSI-X multi-message vectors */ 6505 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 6506 6507 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) 6508 free_irq(phba->sli4_hba.msix_entries[index].vector, 6509 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 6510 /* Disable MSI-X */ 6511 pci_disable_msix(phba->pcidev); 6512 6513 return; 6514 } 6515 6516 /** 6517 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 6518 * @phba: pointer to lpfc hba data structure. 6519 * 6520 * This routine is invoked to enable the MSI interrupt mode to device with 6521 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 6522 * to enable the MSI vector. The device driver is responsible for calling 6523 * the request_irq() to register MSI vector with a interrupt the handler, 6524 * which is done in this function. 6525 * 6526 * Return codes 6527 * 0 - successful 6528 * other values - error 6529 **/ 6530 static int 6531 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 6532 { 6533 int rc, index; 6534 6535 rc = pci_enable_msi(phba->pcidev); 6536 if (!rc) 6537 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6538 "0487 PCI enable MSI mode success.\n"); 6539 else { 6540 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6541 "0488 PCI enable MSI mode failed (%d)\n", rc); 6542 return rc; 6543 } 6544 6545 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 6546 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6547 if (rc) { 6548 pci_disable_msi(phba->pcidev); 6549 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6550 "0490 MSI request_irq failed (%d)\n", rc); 6551 } 6552 6553 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 6554 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 6555 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 6556 } 6557 6558 return rc; 6559 } 6560 6561 /** 6562 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 6563 * @phba: pointer to lpfc hba data structure. 6564 * 6565 * This routine is invoked to disable the MSI interrupt mode to device with 6566 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 6567 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6568 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6569 * its vector. 6570 **/ 6571 static void 6572 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 6573 { 6574 free_irq(phba->pcidev->irq, phba); 6575 pci_disable_msi(phba->pcidev); 6576 return; 6577 } 6578 6579 /** 6580 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 6581 * @phba: pointer to lpfc hba data structure. 6582 * 6583 * This routine is invoked to enable device interrupt and associate driver's 6584 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 6585 * interface spec. Depends on the interrupt mode configured to the driver, 6586 * the driver will try to fallback from the configured interrupt mode to an 6587 * interrupt mode which is supported by the platform, kernel, and device in 6588 * the order of: 6589 * MSI-X -> MSI -> IRQ. 6590 * 6591 * Return codes 6592 * 0 - successful 6593 * other values - error 6594 **/ 6595 static uint32_t 6596 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6597 { 6598 uint32_t intr_mode = LPFC_INTR_ERROR; 6599 int retval, index; 6600 6601 if (cfg_mode == 2) { 6602 /* Preparation before conf_msi mbox cmd */ 6603 retval = 0; 6604 if (!retval) { 6605 /* Now, try to enable MSI-X interrupt mode */ 6606 retval = lpfc_sli4_enable_msix(phba); 6607 if (!retval) { 6608 /* Indicate initialization to MSI-X mode */ 6609 phba->intr_type = MSIX; 6610 intr_mode = 2; 6611 } 6612 } 6613 } 6614 6615 /* Fallback to MSI if MSI-X initialization failed */ 6616 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6617 retval = lpfc_sli4_enable_msi(phba); 6618 if (!retval) { 6619 /* Indicate initialization to MSI mode */ 6620 phba->intr_type = MSI; 6621 intr_mode = 1; 6622 } 6623 } 6624 6625 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6626 if (phba->intr_type == NONE) { 6627 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 6628 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6629 if (!retval) { 6630 /* Indicate initialization to INTx mode */ 6631 phba->intr_type = INTx; 6632 intr_mode = 0; 6633 for (index = 0; index < phba->cfg_fcp_eq_count; 6634 index++) { 6635 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 6636 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 6637 } 6638 } 6639 } 6640 return intr_mode; 6641 } 6642 6643 /** 6644 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 6645 * @phba: pointer to lpfc hba data structure. 6646 * 6647 * This routine is invoked to disable device interrupt and disassociate 6648 * the driver's interrupt handler(s) from interrupt vector(s) to device 6649 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 6650 * will release the interrupt vector(s) for the message signaled interrupt. 6651 **/ 6652 static void 6653 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 6654 { 6655 /* Disable the currently initialized interrupt mode */ 6656 if (phba->intr_type == MSIX) 6657 lpfc_sli4_disable_msix(phba); 6658 else if (phba->intr_type == MSI) 6659 lpfc_sli4_disable_msi(phba); 6660 else if (phba->intr_type == INTx) 6661 free_irq(phba->pcidev->irq, phba); 6662 6663 /* Reset interrupt management states */ 6664 phba->intr_type = NONE; 6665 phba->sli.slistat.sli_intr = 0; 6666 6667 return; 6668 } 6669 6670 /** 6671 * lpfc_unset_hba - Unset SLI3 hba device initialization 6672 * @phba: pointer to lpfc hba data structure. 6673 * 6674 * This routine is invoked to unset the HBA device initialization steps to 6675 * a device with SLI-3 interface spec. 6676 **/ 6677 static void 6678 lpfc_unset_hba(struct lpfc_hba *phba) 6679 { 6680 struct lpfc_vport *vport = phba->pport; 6681 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6682 6683 spin_lock_irq(shost->host_lock); 6684 vport->load_flag |= FC_UNLOADING; 6685 spin_unlock_irq(shost->host_lock); 6686 6687 lpfc_stop_hba_timers(phba); 6688 6689 phba->pport->work_port_events = 0; 6690 6691 lpfc_sli_hba_down(phba); 6692 6693 lpfc_sli_brdrestart(phba); 6694 6695 lpfc_sli_disable_intr(phba); 6696 6697 return; 6698 } 6699 6700 /** 6701 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 6702 * @phba: pointer to lpfc hba data structure. 6703 * 6704 * This routine is invoked to unset the HBA device initialization steps to 6705 * a device with SLI-4 interface spec. 6706 **/ 6707 static void 6708 lpfc_sli4_unset_hba(struct lpfc_hba *phba) 6709 { 6710 struct lpfc_vport *vport = phba->pport; 6711 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6712 6713 spin_lock_irq(shost->host_lock); 6714 vport->load_flag |= FC_UNLOADING; 6715 spin_unlock_irq(shost->host_lock); 6716 6717 phba->pport->work_port_events = 0; 6718 6719 lpfc_sli4_hba_down(phba); 6720 6721 lpfc_sli4_disable_intr(phba); 6722 6723 return; 6724 } 6725 6726 /** 6727 * lpfc_sli4_hba_unset - Unset the fcoe hba 6728 * @phba: Pointer to HBA context object. 6729 * 6730 * This function is called in the SLI4 code path to reset the HBA's FCoE 6731 * function. The caller is not required to hold any lock. This routine 6732 * issues PCI function reset mailbox command to reset the FCoE function. 6733 * At the end of the function, it calls lpfc_hba_down_post function to 6734 * free any pending commands. 6735 **/ 6736 static void 6737 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 6738 { 6739 int wait_cnt = 0; 6740 LPFC_MBOXQ_t *mboxq; 6741 6742 lpfc_stop_hba_timers(phba); 6743 phba->sli4_hba.intr_enable = 0; 6744 6745 /* 6746 * Gracefully wait out the potential current outstanding asynchronous 6747 * mailbox command. 6748 */ 6749 6750 /* First, block any pending async mailbox command from posted */ 6751 spin_lock_irq(&phba->hbalock); 6752 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 6753 spin_unlock_irq(&phba->hbalock); 6754 /* Now, trying to wait it out if we can */ 6755 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 6756 msleep(10); 6757 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 6758 break; 6759 } 6760 /* Forcefully release the outstanding mailbox command if timed out */ 6761 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 6762 spin_lock_irq(&phba->hbalock); 6763 mboxq = phba->sli.mbox_active; 6764 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 6765 __lpfc_mbox_cmpl_put(phba, mboxq); 6766 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 6767 phba->sli.mbox_active = NULL; 6768 spin_unlock_irq(&phba->hbalock); 6769 } 6770 6771 /* Tear down the queues in the HBA */ 6772 lpfc_sli4_queue_unset(phba); 6773 6774 /* Disable PCI subsystem interrupt */ 6775 lpfc_sli4_disable_intr(phba); 6776 6777 /* Stop kthread signal shall trigger work_done one more time */ 6778 kthread_stop(phba->worker_thread); 6779 6780 /* Stop the SLI4 device port */ 6781 phba->pport->work_port_events = 0; 6782 } 6783 6784 /** 6785 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 6786 * @pdev: pointer to PCI device 6787 * @pid: pointer to PCI device identifier 6788 * 6789 * This routine is to be called to attach a device with SLI-3 interface spec 6790 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 6791 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 6792 * information of the device and driver to see if the driver state that it can 6793 * support this kind of device. If the match is successful, the driver core 6794 * invokes this routine. If this routine determines it can claim the HBA, it 6795 * does all the initialization that it needs to do to handle the HBA properly. 6796 * 6797 * Return code 6798 * 0 - driver can claim the device 6799 * negative value - driver can not claim the device 6800 **/ 6801 static int __devinit 6802 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 6803 { 6804 struct lpfc_hba *phba; 6805 struct lpfc_vport *vport = NULL; 6806 struct Scsi_Host *shost = NULL; 6807 int error; 6808 uint32_t cfg_mode, intr_mode; 6809 6810 /* Allocate memory for HBA structure */ 6811 phba = lpfc_hba_alloc(pdev); 6812 if (!phba) 6813 return -ENOMEM; 6814 6815 /* Perform generic PCI device enabling operation */ 6816 error = lpfc_enable_pci_dev(phba); 6817 if (error) { 6818 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6819 "1401 Failed to enable pci device.\n"); 6820 goto out_free_phba; 6821 } 6822 6823 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 6824 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 6825 if (error) 6826 goto out_disable_pci_dev; 6827 6828 /* Set up SLI-3 specific device PCI memory space */ 6829 error = lpfc_sli_pci_mem_setup(phba); 6830 if (error) { 6831 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6832 "1402 Failed to set up pci memory space.\n"); 6833 goto out_disable_pci_dev; 6834 } 6835 6836 /* Set up phase-1 common device driver resources */ 6837 error = lpfc_setup_driver_resource_phase1(phba); 6838 if (error) { 6839 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6840 "1403 Failed to set up driver resource.\n"); 6841 goto out_unset_pci_mem_s3; 6842 } 6843 6844 /* Set up SLI-3 specific device driver resources */ 6845 error = lpfc_sli_driver_resource_setup(phba); 6846 if (error) { 6847 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6848 "1404 Failed to set up driver resource.\n"); 6849 goto out_unset_pci_mem_s3; 6850 } 6851 6852 /* Initialize and populate the iocb list per host */ 6853 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 6854 if (error) { 6855 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6856 "1405 Failed to initialize iocb list.\n"); 6857 goto out_unset_driver_resource_s3; 6858 } 6859 6860 /* Set up common device driver resources */ 6861 error = lpfc_setup_driver_resource_phase2(phba); 6862 if (error) { 6863 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6864 "1406 Failed to set up driver resource.\n"); 6865 goto out_free_iocb_list; 6866 } 6867 6868 /* Create SCSI host to the physical port */ 6869 error = lpfc_create_shost(phba); 6870 if (error) { 6871 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6872 "1407 Failed to create scsi host.\n"); 6873 goto out_unset_driver_resource; 6874 } 6875 6876 /* Configure sysfs attributes */ 6877 vport = phba->pport; 6878 error = lpfc_alloc_sysfs_attr(vport); 6879 if (error) { 6880 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6881 "1476 Failed to allocate sysfs attr\n"); 6882 goto out_destroy_shost; 6883 } 6884 6885 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 6886 /* Now, trying to enable interrupt and bring up the device */ 6887 cfg_mode = phba->cfg_use_msi; 6888 while (true) { 6889 /* Put device to a known state before enabling interrupt */ 6890 lpfc_stop_port(phba); 6891 /* Configure and enable interrupt */ 6892 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 6893 if (intr_mode == LPFC_INTR_ERROR) { 6894 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6895 "0431 Failed to enable interrupt.\n"); 6896 error = -ENODEV; 6897 goto out_free_sysfs_attr; 6898 } 6899 /* SLI-3 HBA setup */ 6900 if (lpfc_sli_hba_setup(phba)) { 6901 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6902 "1477 Failed to set up hba\n"); 6903 error = -ENODEV; 6904 goto out_remove_device; 6905 } 6906 6907 /* Wait 50ms for the interrupts of previous mailbox commands */ 6908 msleep(50); 6909 /* Check active interrupts on message signaled interrupts */ 6910 if (intr_mode == 0 || 6911 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 6912 /* Log the current active interrupt mode */ 6913 phba->intr_mode = intr_mode; 6914 lpfc_log_intr_mode(phba, intr_mode); 6915 break; 6916 } else { 6917 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6918 "0447 Configure interrupt mode (%d) " 6919 "failed active interrupt test.\n", 6920 intr_mode); 6921 /* Disable the current interrupt mode */ 6922 lpfc_sli_disable_intr(phba); 6923 /* Try next level of interrupt mode */ 6924 cfg_mode = --intr_mode; 6925 } 6926 } 6927 6928 /* Perform post initialization setup */ 6929 lpfc_post_init_setup(phba); 6930 6931 /* Check if there are static vports to be created. */ 6932 lpfc_create_static_vport(phba); 6933 6934 return 0; 6935 6936 out_remove_device: 6937 lpfc_unset_hba(phba); 6938 out_free_sysfs_attr: 6939 lpfc_free_sysfs_attr(vport); 6940 out_destroy_shost: 6941 lpfc_destroy_shost(phba); 6942 out_unset_driver_resource: 6943 lpfc_unset_driver_resource_phase2(phba); 6944 out_free_iocb_list: 6945 lpfc_free_iocb_list(phba); 6946 out_unset_driver_resource_s3: 6947 lpfc_sli_driver_resource_unset(phba); 6948 out_unset_pci_mem_s3: 6949 lpfc_sli_pci_mem_unset(phba); 6950 out_disable_pci_dev: 6951 lpfc_disable_pci_dev(phba); 6952 if (shost) 6953 scsi_host_put(shost); 6954 out_free_phba: 6955 lpfc_hba_free(phba); 6956 return error; 6957 } 6958 6959 /** 6960 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 6961 * @pdev: pointer to PCI device 6962 * 6963 * This routine is to be called to disattach a device with SLI-3 interface 6964 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 6965 * removed from PCI bus, it performs all the necessary cleanup for the HBA 6966 * device to be removed from the PCI subsystem properly. 6967 **/ 6968 static void __devexit 6969 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 6970 { 6971 struct Scsi_Host *shost = pci_get_drvdata(pdev); 6972 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6973 struct lpfc_vport **vports; 6974 struct lpfc_hba *phba = vport->phba; 6975 int i; 6976 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 6977 6978 spin_lock_irq(&phba->hbalock); 6979 vport->load_flag |= FC_UNLOADING; 6980 spin_unlock_irq(&phba->hbalock); 6981 6982 lpfc_free_sysfs_attr(vport); 6983 6984 /* Release all the vports against this physical port */ 6985 vports = lpfc_create_vport_work_array(phba); 6986 if (vports != NULL) 6987 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 6988 fc_vport_terminate(vports[i]->fc_vport); 6989 lpfc_destroy_vport_work_array(phba, vports); 6990 6991 /* Remove FC host and then SCSI host with the physical port */ 6992 fc_remove_host(shost); 6993 scsi_remove_host(shost); 6994 lpfc_cleanup(vport); 6995 6996 /* 6997 * Bring down the SLI Layer. This step disable all interrupts, 6998 * clears the rings, discards all mailbox commands, and resets 6999 * the HBA. 7000 */ 7001 7002 /* HBA interrupt will be diabled after this call */ 7003 lpfc_sli_hba_down(phba); 7004 /* Stop kthread signal shall trigger work_done one more time */ 7005 kthread_stop(phba->worker_thread); 7006 /* Final cleanup of txcmplq and reset the HBA */ 7007 lpfc_sli_brdrestart(phba); 7008 7009 lpfc_stop_hba_timers(phba); 7010 spin_lock_irq(&phba->hbalock); 7011 list_del_init(&vport->listentry); 7012 spin_unlock_irq(&phba->hbalock); 7013 7014 lpfc_debugfs_terminate(vport); 7015 7016 /* Disable interrupt */ 7017 lpfc_sli_disable_intr(phba); 7018 7019 pci_set_drvdata(pdev, NULL); 7020 scsi_host_put(shost); 7021 7022 /* 7023 * Call scsi_free before mem_free since scsi bufs are released to their 7024 * corresponding pools here. 7025 */ 7026 lpfc_scsi_free(phba); 7027 lpfc_mem_free_all(phba); 7028 7029 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7030 phba->hbqslimp.virt, phba->hbqslimp.phys); 7031 7032 /* Free resources associated with SLI2 interface */ 7033 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7034 phba->slim2p.virt, phba->slim2p.phys); 7035 7036 /* unmap adapter SLIM and Control Registers */ 7037 iounmap(phba->ctrl_regs_memmap_p); 7038 iounmap(phba->slim_memmap_p); 7039 7040 lpfc_hba_free(phba); 7041 7042 pci_release_selected_regions(pdev, bars); 7043 pci_disable_device(pdev); 7044 } 7045 7046 /** 7047 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 7048 * @pdev: pointer to PCI device 7049 * @msg: power management message 7050 * 7051 * This routine is to be called from the kernel's PCI subsystem to support 7052 * system Power Management (PM) to device with SLI-3 interface spec. When 7053 * PM invokes this method, it quiesces the device by stopping the driver's 7054 * worker thread for the device, turning off device's interrupt and DMA, 7055 * and bring the device offline. Note that as the driver implements the 7056 * minimum PM requirements to a power-aware driver's PM support for the 7057 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 7058 * to the suspend() method call will be treated as SUSPEND and the driver will 7059 * fully reinitialize its device during resume() method call, the driver will 7060 * set device to PCI_D3hot state in PCI config space instead of setting it 7061 * according to the @msg provided by the PM. 7062 * 7063 * Return code 7064 * 0 - driver suspended the device 7065 * Error otherwise 7066 **/ 7067 static int 7068 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 7069 { 7070 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7071 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7072 7073 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7074 "0473 PCI device Power Management suspend.\n"); 7075 7076 /* Bring down the device */ 7077 lpfc_offline_prep(phba); 7078 lpfc_offline(phba); 7079 kthread_stop(phba->worker_thread); 7080 7081 /* Disable interrupt from device */ 7082 lpfc_sli_disable_intr(phba); 7083 7084 /* Save device state to PCI config space */ 7085 pci_save_state(pdev); 7086 pci_set_power_state(pdev, PCI_D3hot); 7087 7088 return 0; 7089 } 7090 7091 /** 7092 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 7093 * @pdev: pointer to PCI device 7094 * 7095 * This routine is to be called from the kernel's PCI subsystem to support 7096 * system Power Management (PM) to device with SLI-3 interface spec. When PM 7097 * invokes this method, it restores the device's PCI config space state and 7098 * fully reinitializes the device and brings it online. Note that as the 7099 * driver implements the minimum PM requirements to a power-aware driver's 7100 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 7101 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 7102 * driver will fully reinitialize its device during resume() method call, 7103 * the device will be set to PCI_D0 directly in PCI config space before 7104 * restoring the state. 7105 * 7106 * Return code 7107 * 0 - driver suspended the device 7108 * Error otherwise 7109 **/ 7110 static int 7111 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 7112 { 7113 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7114 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7115 uint32_t intr_mode; 7116 int error; 7117 7118 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7119 "0452 PCI device Power Management resume.\n"); 7120 7121 /* Restore device state from PCI config space */ 7122 pci_set_power_state(pdev, PCI_D0); 7123 pci_restore_state(pdev); 7124 7125 if (pdev->is_busmaster) 7126 pci_set_master(pdev); 7127 7128 /* Startup the kernel thread for this host adapter. */ 7129 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7130 "lpfc_worker_%d", phba->brd_no); 7131 if (IS_ERR(phba->worker_thread)) { 7132 error = PTR_ERR(phba->worker_thread); 7133 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7134 "0434 PM resume failed to start worker " 7135 "thread: error=x%x.\n", error); 7136 return error; 7137 } 7138 7139 /* Configure and enable interrupt */ 7140 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7141 if (intr_mode == LPFC_INTR_ERROR) { 7142 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7143 "0430 PM resume Failed to enable interrupt\n"); 7144 return -EIO; 7145 } else 7146 phba->intr_mode = intr_mode; 7147 7148 /* Restart HBA and bring it online */ 7149 lpfc_sli_brdrestart(phba); 7150 lpfc_online(phba); 7151 7152 /* Log the current active interrupt mode */ 7153 lpfc_log_intr_mode(phba, phba->intr_mode); 7154 7155 return 0; 7156 } 7157 7158 /** 7159 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 7160 * @phba: pointer to lpfc hba data structure. 7161 * 7162 * This routine is called to prepare the SLI3 device for PCI slot recover. It 7163 * aborts and stops all the on-going I/Os on the pci device. 7164 **/ 7165 static void 7166 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 7167 { 7168 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7169 "2723 PCI channel I/O abort preparing for recovery\n"); 7170 /* Prepare for bringing HBA offline */ 7171 lpfc_offline_prep(phba); 7172 /* Clear sli active flag to prevent sysfs access to HBA */ 7173 spin_lock_irq(&phba->hbalock); 7174 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE; 7175 spin_unlock_irq(&phba->hbalock); 7176 /* Stop and flush all I/Os and bring HBA offline */ 7177 lpfc_offline(phba); 7178 } 7179 7180 /** 7181 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 7182 * @phba: pointer to lpfc hba data structure. 7183 * 7184 * This routine is called to prepare the SLI3 device for PCI slot reset. It 7185 * disables the device interrupt and pci device, and aborts the internal FCP 7186 * pending I/Os. 7187 **/ 7188 static void 7189 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 7190 { 7191 struct lpfc_sli *psli = &phba->sli; 7192 struct lpfc_sli_ring *pring; 7193 7194 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7195 "2710 PCI channel disable preparing for reset\n"); 7196 /* Disable interrupt and pci device */ 7197 lpfc_sli_disable_intr(phba); 7198 pci_disable_device(phba->pcidev); 7199 /* 7200 * There may be I/Os dropped by the firmware. 7201 * Error iocb (I/O) on txcmplq and let the SCSI layer 7202 * retry it after re-establishing link. 7203 */ 7204 pring = &psli->ring[psli->fcp_ring]; 7205 lpfc_sli_abort_iocb_ring(phba, pring); 7206 } 7207 7208 /** 7209 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 7210 * @phba: pointer to lpfc hba data structure. 7211 * 7212 * This routine is called to prepare the SLI3 device for PCI slot permanently 7213 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 7214 * pending I/Os. 7215 **/ 7216 static void 7217 lpfc_prep_dev_for_perm_failure(struct lpfc_hba *phba) 7218 { 7219 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7220 "2711 PCI channel permanent disable for failure\n"); 7221 /* Block all SCSI devices' I/Os on the host */ 7222 lpfc_scsi_dev_block(phba); 7223 /* Clean up all driver's outstanding SCSI I/Os */ 7224 lpfc_sli_flush_fcp_rings(phba); 7225 } 7226 7227 /** 7228 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 7229 * @pdev: pointer to PCI device. 7230 * @state: the current PCI connection state. 7231 * 7232 * This routine is called from the PCI subsystem for I/O error handling to 7233 * device with SLI-3 interface spec. This function is called by the PCI 7234 * subsystem after a PCI bus error affecting this device has been detected. 7235 * When this function is invoked, it will need to stop all the I/Os and 7236 * interrupt(s) to the device. Once that is done, it will return 7237 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 7238 * as desired. 7239 * 7240 * Return codes 7241 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 7242 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7243 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7244 **/ 7245 static pci_ers_result_t 7246 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 7247 { 7248 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7249 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7250 7251 switch (state) { 7252 case pci_channel_io_normal: 7253 /* Non-fatal error, prepare for recovery */ 7254 lpfc_sli_prep_dev_for_recover(phba); 7255 return PCI_ERS_RESULT_CAN_RECOVER; 7256 case pci_channel_io_frozen: 7257 /* Fatal error, prepare for slot reset */ 7258 lpfc_sli_prep_dev_for_reset(phba); 7259 return PCI_ERS_RESULT_NEED_RESET; 7260 case pci_channel_io_perm_failure: 7261 /* Permanent failure, prepare for device down */ 7262 lpfc_prep_dev_for_perm_failure(phba); 7263 return PCI_ERS_RESULT_DISCONNECT; 7264 default: 7265 /* Unknown state, prepare and request slot reset */ 7266 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7267 "0472 Unknown PCI error state: x%x\n", state); 7268 lpfc_sli_prep_dev_for_reset(phba); 7269 return PCI_ERS_RESULT_NEED_RESET; 7270 } 7271 } 7272 7273 /** 7274 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 7275 * @pdev: pointer to PCI device. 7276 * 7277 * This routine is called from the PCI subsystem for error handling to 7278 * device with SLI-3 interface spec. This is called after PCI bus has been 7279 * reset to restart the PCI card from scratch, as if from a cold-boot. 7280 * During the PCI subsystem error recovery, after driver returns 7281 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 7282 * recovery and then call this routine before calling the .resume method 7283 * to recover the device. This function will initialize the HBA device, 7284 * enable the interrupt, but it will just put the HBA to offline state 7285 * without passing any I/O traffic. 7286 * 7287 * Return codes 7288 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7289 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7290 */ 7291 static pci_ers_result_t 7292 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 7293 { 7294 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7295 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7296 struct lpfc_sli *psli = &phba->sli; 7297 uint32_t intr_mode; 7298 7299 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 7300 if (pci_enable_device_mem(pdev)) { 7301 printk(KERN_ERR "lpfc: Cannot re-enable " 7302 "PCI device after reset.\n"); 7303 return PCI_ERS_RESULT_DISCONNECT; 7304 } 7305 7306 pci_restore_state(pdev); 7307 if (pdev->is_busmaster) 7308 pci_set_master(pdev); 7309 7310 spin_lock_irq(&phba->hbalock); 7311 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 7312 spin_unlock_irq(&phba->hbalock); 7313 7314 /* Configure and enable interrupt */ 7315 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7316 if (intr_mode == LPFC_INTR_ERROR) { 7317 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7318 "0427 Cannot re-enable interrupt after " 7319 "slot reset.\n"); 7320 return PCI_ERS_RESULT_DISCONNECT; 7321 } else 7322 phba->intr_mode = intr_mode; 7323 7324 /* Take device offline; this will perform cleanup */ 7325 lpfc_offline(phba); 7326 lpfc_sli_brdrestart(phba); 7327 7328 /* Log the current active interrupt mode */ 7329 lpfc_log_intr_mode(phba, phba->intr_mode); 7330 7331 return PCI_ERS_RESULT_RECOVERED; 7332 } 7333 7334 /** 7335 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 7336 * @pdev: pointer to PCI device 7337 * 7338 * This routine is called from the PCI subsystem for error handling to device 7339 * with SLI-3 interface spec. It is called when kernel error recovery tells 7340 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 7341 * error recovery. After this call, traffic can start to flow from this device 7342 * again. 7343 */ 7344 static void 7345 lpfc_io_resume_s3(struct pci_dev *pdev) 7346 { 7347 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7348 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7349 7350 /* Bring the device online */ 7351 lpfc_online(phba); 7352 7353 /* Clean up Advanced Error Reporting (AER) if needed */ 7354 if (phba->hba_flag & HBA_AER_ENABLED) 7355 pci_cleanup_aer_uncorrect_error_status(pdev); 7356 } 7357 7358 /** 7359 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 7360 * @phba: pointer to lpfc hba data structure. 7361 * 7362 * returns the number of ELS/CT IOCBs to reserve 7363 **/ 7364 int 7365 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 7366 { 7367 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 7368 7369 if (phba->sli_rev == LPFC_SLI_REV4) { 7370 if (max_xri <= 100) 7371 return 10; 7372 else if (max_xri <= 256) 7373 return 25; 7374 else if (max_xri <= 512) 7375 return 50; 7376 else if (max_xri <= 1024) 7377 return 100; 7378 else 7379 return 150; 7380 } else 7381 return 0; 7382 } 7383 7384 /** 7385 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 7386 * @pdev: pointer to PCI device 7387 * @pid: pointer to PCI device identifier 7388 * 7389 * This routine is called from the kernel's PCI subsystem to device with 7390 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 7391 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 7392 * information of the device and driver to see if the driver state that it 7393 * can support this kind of device. If the match is successful, the driver 7394 * core invokes this routine. If this routine determines it can claim the HBA, 7395 * it does all the initialization that it needs to do to handle the HBA 7396 * properly. 7397 * 7398 * Return code 7399 * 0 - driver can claim the device 7400 * negative value - driver can not claim the device 7401 **/ 7402 static int __devinit 7403 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 7404 { 7405 struct lpfc_hba *phba; 7406 struct lpfc_vport *vport = NULL; 7407 struct Scsi_Host *shost = NULL; 7408 int error; 7409 uint32_t cfg_mode, intr_mode; 7410 int mcnt; 7411 7412 /* Allocate memory for HBA structure */ 7413 phba = lpfc_hba_alloc(pdev); 7414 if (!phba) 7415 return -ENOMEM; 7416 7417 /* Perform generic PCI device enabling operation */ 7418 error = lpfc_enable_pci_dev(phba); 7419 if (error) { 7420 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7421 "1409 Failed to enable pci device.\n"); 7422 goto out_free_phba; 7423 } 7424 7425 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 7426 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 7427 if (error) 7428 goto out_disable_pci_dev; 7429 7430 /* Set up SLI-4 specific device PCI memory space */ 7431 error = lpfc_sli4_pci_mem_setup(phba); 7432 if (error) { 7433 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7434 "1410 Failed to set up pci memory space.\n"); 7435 goto out_disable_pci_dev; 7436 } 7437 7438 /* Set up phase-1 common device driver resources */ 7439 error = lpfc_setup_driver_resource_phase1(phba); 7440 if (error) { 7441 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7442 "1411 Failed to set up driver resource.\n"); 7443 goto out_unset_pci_mem_s4; 7444 } 7445 7446 /* Set up SLI-4 Specific device driver resources */ 7447 error = lpfc_sli4_driver_resource_setup(phba); 7448 if (error) { 7449 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7450 "1412 Failed to set up driver resource.\n"); 7451 goto out_unset_pci_mem_s4; 7452 } 7453 7454 /* Initialize and populate the iocb list per host */ 7455 error = lpfc_init_iocb_list(phba, 7456 phba->sli4_hba.max_cfg_param.max_xri); 7457 if (error) { 7458 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7459 "1413 Failed to initialize iocb list.\n"); 7460 goto out_unset_driver_resource_s4; 7461 } 7462 7463 /* Set up common device driver resources */ 7464 error = lpfc_setup_driver_resource_phase2(phba); 7465 if (error) { 7466 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7467 "1414 Failed to set up driver resource.\n"); 7468 goto out_free_iocb_list; 7469 } 7470 7471 /* Create SCSI host to the physical port */ 7472 error = lpfc_create_shost(phba); 7473 if (error) { 7474 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7475 "1415 Failed to create scsi host.\n"); 7476 goto out_unset_driver_resource; 7477 } 7478 7479 /* Configure sysfs attributes */ 7480 vport = phba->pport; 7481 error = lpfc_alloc_sysfs_attr(vport); 7482 if (error) { 7483 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7484 "1416 Failed to allocate sysfs attr\n"); 7485 goto out_destroy_shost; 7486 } 7487 7488 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 7489 /* Now, trying to enable interrupt and bring up the device */ 7490 cfg_mode = phba->cfg_use_msi; 7491 while (true) { 7492 /* Put device to a known state before enabling interrupt */ 7493 lpfc_stop_port(phba); 7494 /* Configure and enable interrupt */ 7495 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 7496 if (intr_mode == LPFC_INTR_ERROR) { 7497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7498 "0426 Failed to enable interrupt.\n"); 7499 error = -ENODEV; 7500 goto out_free_sysfs_attr; 7501 } 7502 /* Set up SLI-4 HBA */ 7503 if (lpfc_sli4_hba_setup(phba)) { 7504 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7505 "1421 Failed to set up hba\n"); 7506 error = -ENODEV; 7507 goto out_disable_intr; 7508 } 7509 7510 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 7511 if (intr_mode != 0) 7512 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 7513 LPFC_ACT_INTR_CNT); 7514 7515 /* Check active interrupts received only for MSI/MSI-X */ 7516 if (intr_mode == 0 || 7517 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 7518 /* Log the current active interrupt mode */ 7519 phba->intr_mode = intr_mode; 7520 lpfc_log_intr_mode(phba, intr_mode); 7521 break; 7522 } 7523 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7524 "0451 Configure interrupt mode (%d) " 7525 "failed active interrupt test.\n", 7526 intr_mode); 7527 /* Unset the preivous SLI-4 HBA setup */ 7528 lpfc_sli4_unset_hba(phba); 7529 /* Try next level of interrupt mode */ 7530 cfg_mode = --intr_mode; 7531 } 7532 7533 /* Perform post initialization setup */ 7534 lpfc_post_init_setup(phba); 7535 7536 /* Check if there are static vports to be created. */ 7537 lpfc_create_static_vport(phba); 7538 7539 return 0; 7540 7541 out_disable_intr: 7542 lpfc_sli4_disable_intr(phba); 7543 out_free_sysfs_attr: 7544 lpfc_free_sysfs_attr(vport); 7545 out_destroy_shost: 7546 lpfc_destroy_shost(phba); 7547 out_unset_driver_resource: 7548 lpfc_unset_driver_resource_phase2(phba); 7549 out_free_iocb_list: 7550 lpfc_free_iocb_list(phba); 7551 out_unset_driver_resource_s4: 7552 lpfc_sli4_driver_resource_unset(phba); 7553 out_unset_pci_mem_s4: 7554 lpfc_sli4_pci_mem_unset(phba); 7555 out_disable_pci_dev: 7556 lpfc_disable_pci_dev(phba); 7557 if (shost) 7558 scsi_host_put(shost); 7559 out_free_phba: 7560 lpfc_hba_free(phba); 7561 return error; 7562 } 7563 7564 /** 7565 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 7566 * @pdev: pointer to PCI device 7567 * 7568 * This routine is called from the kernel's PCI subsystem to device with 7569 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 7570 * removed from PCI bus, it performs all the necessary cleanup for the HBA 7571 * device to be removed from the PCI subsystem properly. 7572 **/ 7573 static void __devexit 7574 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 7575 { 7576 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7577 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7578 struct lpfc_vport **vports; 7579 struct lpfc_hba *phba = vport->phba; 7580 int i; 7581 7582 /* Mark the device unloading flag */ 7583 spin_lock_irq(&phba->hbalock); 7584 vport->load_flag |= FC_UNLOADING; 7585 spin_unlock_irq(&phba->hbalock); 7586 7587 /* Free the HBA sysfs attributes */ 7588 lpfc_free_sysfs_attr(vport); 7589 7590 /* Release all the vports against this physical port */ 7591 vports = lpfc_create_vport_work_array(phba); 7592 if (vports != NULL) 7593 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 7594 fc_vport_terminate(vports[i]->fc_vport); 7595 lpfc_destroy_vport_work_array(phba, vports); 7596 7597 /* Remove FC host and then SCSI host with the physical port */ 7598 fc_remove_host(shost); 7599 scsi_remove_host(shost); 7600 7601 /* Perform cleanup on the physical port */ 7602 lpfc_cleanup(vport); 7603 7604 /* 7605 * Bring down the SLI Layer. This step disables all interrupts, 7606 * clears the rings, discards all mailbox commands, and resets 7607 * the HBA FCoE function. 7608 */ 7609 lpfc_debugfs_terminate(vport); 7610 lpfc_sli4_hba_unset(phba); 7611 7612 spin_lock_irq(&phba->hbalock); 7613 list_del_init(&vport->listentry); 7614 spin_unlock_irq(&phba->hbalock); 7615 7616 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi 7617 * buffers are released to their corresponding pools here. 7618 */ 7619 lpfc_scsi_free(phba); 7620 lpfc_sli4_driver_resource_unset(phba); 7621 7622 /* Unmap adapter Control and Doorbell registers */ 7623 lpfc_sli4_pci_mem_unset(phba); 7624 7625 /* Release PCI resources and disable device's PCI function */ 7626 scsi_host_put(shost); 7627 lpfc_disable_pci_dev(phba); 7628 7629 /* Finally, free the driver's device data structure */ 7630 lpfc_hba_free(phba); 7631 7632 return; 7633 } 7634 7635 /** 7636 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 7637 * @pdev: pointer to PCI device 7638 * @msg: power management message 7639 * 7640 * This routine is called from the kernel's PCI subsystem to support system 7641 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 7642 * this method, it quiesces the device by stopping the driver's worker 7643 * thread for the device, turning off device's interrupt and DMA, and bring 7644 * the device offline. Note that as the driver implements the minimum PM 7645 * requirements to a power-aware driver's PM support for suspend/resume -- all 7646 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 7647 * method call will be treated as SUSPEND and the driver will fully 7648 * reinitialize its device during resume() method call, the driver will set 7649 * device to PCI_D3hot state in PCI config space instead of setting it 7650 * according to the @msg provided by the PM. 7651 * 7652 * Return code 7653 * 0 - driver suspended the device 7654 * Error otherwise 7655 **/ 7656 static int 7657 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 7658 { 7659 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7660 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7661 7662 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7663 "0298 PCI device Power Management suspend.\n"); 7664 7665 /* Bring down the device */ 7666 lpfc_offline_prep(phba); 7667 lpfc_offline(phba); 7668 kthread_stop(phba->worker_thread); 7669 7670 /* Disable interrupt from device */ 7671 lpfc_sli4_disable_intr(phba); 7672 7673 /* Save device state to PCI config space */ 7674 pci_save_state(pdev); 7675 pci_set_power_state(pdev, PCI_D3hot); 7676 7677 return 0; 7678 } 7679 7680 /** 7681 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 7682 * @pdev: pointer to PCI device 7683 * 7684 * This routine is called from the kernel's PCI subsystem to support system 7685 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 7686 * this method, it restores the device's PCI config space state and fully 7687 * reinitializes the device and brings it online. Note that as the driver 7688 * implements the minimum PM requirements to a power-aware driver's PM for 7689 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 7690 * to the suspend() method call will be treated as SUSPEND and the driver 7691 * will fully reinitialize its device during resume() method call, the device 7692 * will be set to PCI_D0 directly in PCI config space before restoring the 7693 * state. 7694 * 7695 * Return code 7696 * 0 - driver suspended the device 7697 * Error otherwise 7698 **/ 7699 static int 7700 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 7701 { 7702 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7703 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7704 uint32_t intr_mode; 7705 int error; 7706 7707 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7708 "0292 PCI device Power Management resume.\n"); 7709 7710 /* Restore device state from PCI config space */ 7711 pci_set_power_state(pdev, PCI_D0); 7712 pci_restore_state(pdev); 7713 if (pdev->is_busmaster) 7714 pci_set_master(pdev); 7715 7716 /* Startup the kernel thread for this host adapter. */ 7717 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7718 "lpfc_worker_%d", phba->brd_no); 7719 if (IS_ERR(phba->worker_thread)) { 7720 error = PTR_ERR(phba->worker_thread); 7721 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7722 "0293 PM resume failed to start worker " 7723 "thread: error=x%x.\n", error); 7724 return error; 7725 } 7726 7727 /* Configure and enable interrupt */ 7728 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 7729 if (intr_mode == LPFC_INTR_ERROR) { 7730 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7731 "0294 PM resume Failed to enable interrupt\n"); 7732 return -EIO; 7733 } else 7734 phba->intr_mode = intr_mode; 7735 7736 /* Restart HBA and bring it online */ 7737 lpfc_sli_brdrestart(phba); 7738 lpfc_online(phba); 7739 7740 /* Log the current active interrupt mode */ 7741 lpfc_log_intr_mode(phba, phba->intr_mode); 7742 7743 return 0; 7744 } 7745 7746 /** 7747 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 7748 * @pdev: pointer to PCI device. 7749 * @state: the current PCI connection state. 7750 * 7751 * This routine is called from the PCI subsystem for error handling to device 7752 * with SLI-4 interface spec. This function is called by the PCI subsystem 7753 * after a PCI bus error affecting this device has been detected. When this 7754 * function is invoked, it will need to stop all the I/Os and interrupt(s) 7755 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 7756 * for the PCI subsystem to perform proper recovery as desired. 7757 * 7758 * Return codes 7759 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7760 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7761 **/ 7762 static pci_ers_result_t 7763 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 7764 { 7765 return PCI_ERS_RESULT_NEED_RESET; 7766 } 7767 7768 /** 7769 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 7770 * @pdev: pointer to PCI device. 7771 * 7772 * This routine is called from the PCI subsystem for error handling to device 7773 * with SLI-4 interface spec. It is called after PCI bus has been reset to 7774 * restart the PCI card from scratch, as if from a cold-boot. During the 7775 * PCI subsystem error recovery, after the driver returns 7776 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 7777 * recovery and then call this routine before calling the .resume method to 7778 * recover the device. This function will initialize the HBA device, enable 7779 * the interrupt, but it will just put the HBA to offline state without 7780 * passing any I/O traffic. 7781 * 7782 * Return codes 7783 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7784 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7785 */ 7786 static pci_ers_result_t 7787 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 7788 { 7789 return PCI_ERS_RESULT_RECOVERED; 7790 } 7791 7792 /** 7793 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 7794 * @pdev: pointer to PCI device 7795 * 7796 * This routine is called from the PCI subsystem for error handling to device 7797 * with SLI-4 interface spec. It is called when kernel error recovery tells 7798 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 7799 * error recovery. After this call, traffic can start to flow from this device 7800 * again. 7801 **/ 7802 static void 7803 lpfc_io_resume_s4(struct pci_dev *pdev) 7804 { 7805 return; 7806 } 7807 7808 /** 7809 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 7810 * @pdev: pointer to PCI device 7811 * @pid: pointer to PCI device identifier 7812 * 7813 * This routine is to be registered to the kernel's PCI subsystem. When an 7814 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 7815 * at PCI device-specific information of the device and driver to see if the 7816 * driver state that it can support this kind of device. If the match is 7817 * successful, the driver core invokes this routine. This routine dispatches 7818 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 7819 * do all the initialization that it needs to do to handle the HBA device 7820 * properly. 7821 * 7822 * Return code 7823 * 0 - driver can claim the device 7824 * negative value - driver can not claim the device 7825 **/ 7826 static int __devinit 7827 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 7828 { 7829 int rc; 7830 struct lpfc_sli_intf intf; 7831 7832 if (pci_read_config_dword(pdev, LPFC_SLIREV_CONF_WORD, &intf.word0)) 7833 return -ENODEV; 7834 7835 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 7836 (bf_get(lpfc_sli_intf_rev, &intf) == LPFC_SLIREV_CONF_SLI4)) 7837 rc = lpfc_pci_probe_one_s4(pdev, pid); 7838 else 7839 rc = lpfc_pci_probe_one_s3(pdev, pid); 7840 7841 return rc; 7842 } 7843 7844 /** 7845 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 7846 * @pdev: pointer to PCI device 7847 * 7848 * This routine is to be registered to the kernel's PCI subsystem. When an 7849 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 7850 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 7851 * remove routine, which will perform all the necessary cleanup for the 7852 * device to be removed from the PCI subsystem properly. 7853 **/ 7854 static void __devexit 7855 lpfc_pci_remove_one(struct pci_dev *pdev) 7856 { 7857 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7858 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7859 7860 switch (phba->pci_dev_grp) { 7861 case LPFC_PCI_DEV_LP: 7862 lpfc_pci_remove_one_s3(pdev); 7863 break; 7864 case LPFC_PCI_DEV_OC: 7865 lpfc_pci_remove_one_s4(pdev); 7866 break; 7867 default: 7868 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7869 "1424 Invalid PCI device group: 0x%x\n", 7870 phba->pci_dev_grp); 7871 break; 7872 } 7873 return; 7874 } 7875 7876 /** 7877 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 7878 * @pdev: pointer to PCI device 7879 * @msg: power management message 7880 * 7881 * This routine is to be registered to the kernel's PCI subsystem to support 7882 * system Power Management (PM). When PM invokes this method, it dispatches 7883 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 7884 * suspend the device. 7885 * 7886 * Return code 7887 * 0 - driver suspended the device 7888 * Error otherwise 7889 **/ 7890 static int 7891 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 7892 { 7893 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7894 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7895 int rc = -ENODEV; 7896 7897 switch (phba->pci_dev_grp) { 7898 case LPFC_PCI_DEV_LP: 7899 rc = lpfc_pci_suspend_one_s3(pdev, msg); 7900 break; 7901 case LPFC_PCI_DEV_OC: 7902 rc = lpfc_pci_suspend_one_s4(pdev, msg); 7903 break; 7904 default: 7905 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7906 "1425 Invalid PCI device group: 0x%x\n", 7907 phba->pci_dev_grp); 7908 break; 7909 } 7910 return rc; 7911 } 7912 7913 /** 7914 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 7915 * @pdev: pointer to PCI device 7916 * 7917 * This routine is to be registered to the kernel's PCI subsystem to support 7918 * system Power Management (PM). When PM invokes this method, it dispatches 7919 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 7920 * resume the device. 7921 * 7922 * Return code 7923 * 0 - driver suspended the device 7924 * Error otherwise 7925 **/ 7926 static int 7927 lpfc_pci_resume_one(struct pci_dev *pdev) 7928 { 7929 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7930 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7931 int rc = -ENODEV; 7932 7933 switch (phba->pci_dev_grp) { 7934 case LPFC_PCI_DEV_LP: 7935 rc = lpfc_pci_resume_one_s3(pdev); 7936 break; 7937 case LPFC_PCI_DEV_OC: 7938 rc = lpfc_pci_resume_one_s4(pdev); 7939 break; 7940 default: 7941 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7942 "1426 Invalid PCI device group: 0x%x\n", 7943 phba->pci_dev_grp); 7944 break; 7945 } 7946 return rc; 7947 } 7948 7949 /** 7950 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 7951 * @pdev: pointer to PCI device. 7952 * @state: the current PCI connection state. 7953 * 7954 * This routine is registered to the PCI subsystem for error handling. This 7955 * function is called by the PCI subsystem after a PCI bus error affecting 7956 * this device has been detected. When this routine is invoked, it dispatches 7957 * the action to the proper SLI-3 or SLI-4 device error detected handling 7958 * routine, which will perform the proper error detected operation. 7959 * 7960 * Return codes 7961 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7962 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7963 **/ 7964 static pci_ers_result_t 7965 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 7966 { 7967 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7968 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7969 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 7970 7971 switch (phba->pci_dev_grp) { 7972 case LPFC_PCI_DEV_LP: 7973 rc = lpfc_io_error_detected_s3(pdev, state); 7974 break; 7975 case LPFC_PCI_DEV_OC: 7976 rc = lpfc_io_error_detected_s4(pdev, state); 7977 break; 7978 default: 7979 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7980 "1427 Invalid PCI device group: 0x%x\n", 7981 phba->pci_dev_grp); 7982 break; 7983 } 7984 return rc; 7985 } 7986 7987 /** 7988 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 7989 * @pdev: pointer to PCI device. 7990 * 7991 * This routine is registered to the PCI subsystem for error handling. This 7992 * function is called after PCI bus has been reset to restart the PCI card 7993 * from scratch, as if from a cold-boot. When this routine is invoked, it 7994 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 7995 * routine, which will perform the proper device reset. 7996 * 7997 * Return codes 7998 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7999 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8000 **/ 8001 static pci_ers_result_t 8002 lpfc_io_slot_reset(struct pci_dev *pdev) 8003 { 8004 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8005 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8006 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 8007 8008 switch (phba->pci_dev_grp) { 8009 case LPFC_PCI_DEV_LP: 8010 rc = lpfc_io_slot_reset_s3(pdev); 8011 break; 8012 case LPFC_PCI_DEV_OC: 8013 rc = lpfc_io_slot_reset_s4(pdev); 8014 break; 8015 default: 8016 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8017 "1428 Invalid PCI device group: 0x%x\n", 8018 phba->pci_dev_grp); 8019 break; 8020 } 8021 return rc; 8022 } 8023 8024 /** 8025 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 8026 * @pdev: pointer to PCI device 8027 * 8028 * This routine is registered to the PCI subsystem for error handling. It 8029 * is called when kernel error recovery tells the lpfc driver that it is 8030 * OK to resume normal PCI operation after PCI bus error recovery. When 8031 * this routine is invoked, it dispatches the action to the proper SLI-3 8032 * or SLI-4 device io_resume routine, which will resume the device operation. 8033 **/ 8034 static void 8035 lpfc_io_resume(struct pci_dev *pdev) 8036 { 8037 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8038 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8039 8040 switch (phba->pci_dev_grp) { 8041 case LPFC_PCI_DEV_LP: 8042 lpfc_io_resume_s3(pdev); 8043 break; 8044 case LPFC_PCI_DEV_OC: 8045 lpfc_io_resume_s4(pdev); 8046 break; 8047 default: 8048 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8049 "1429 Invalid PCI device group: 0x%x\n", 8050 phba->pci_dev_grp); 8051 break; 8052 } 8053 return; 8054 } 8055 8056 static struct pci_device_id lpfc_id_table[] = { 8057 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 8058 PCI_ANY_ID, PCI_ANY_ID, }, 8059 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 8060 PCI_ANY_ID, PCI_ANY_ID, }, 8061 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 8062 PCI_ANY_ID, PCI_ANY_ID, }, 8063 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 8064 PCI_ANY_ID, PCI_ANY_ID, }, 8065 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 8066 PCI_ANY_ID, PCI_ANY_ID, }, 8067 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 8068 PCI_ANY_ID, PCI_ANY_ID, }, 8069 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 8070 PCI_ANY_ID, PCI_ANY_ID, }, 8071 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 8072 PCI_ANY_ID, PCI_ANY_ID, }, 8073 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 8074 PCI_ANY_ID, PCI_ANY_ID, }, 8075 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 8076 PCI_ANY_ID, PCI_ANY_ID, }, 8077 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 8078 PCI_ANY_ID, PCI_ANY_ID, }, 8079 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 8080 PCI_ANY_ID, PCI_ANY_ID, }, 8081 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 8082 PCI_ANY_ID, PCI_ANY_ID, }, 8083 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 8084 PCI_ANY_ID, PCI_ANY_ID, }, 8085 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 8086 PCI_ANY_ID, PCI_ANY_ID, }, 8087 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 8088 PCI_ANY_ID, PCI_ANY_ID, }, 8089 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 8090 PCI_ANY_ID, PCI_ANY_ID, }, 8091 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 8092 PCI_ANY_ID, PCI_ANY_ID, }, 8093 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 8094 PCI_ANY_ID, PCI_ANY_ID, }, 8095 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 8096 PCI_ANY_ID, PCI_ANY_ID, }, 8097 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 8098 PCI_ANY_ID, PCI_ANY_ID, }, 8099 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 8100 PCI_ANY_ID, PCI_ANY_ID, }, 8101 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 8102 PCI_ANY_ID, PCI_ANY_ID, }, 8103 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 8104 PCI_ANY_ID, PCI_ANY_ID, }, 8105 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 8106 PCI_ANY_ID, PCI_ANY_ID, }, 8107 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 8108 PCI_ANY_ID, PCI_ANY_ID, }, 8109 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 8110 PCI_ANY_ID, PCI_ANY_ID, }, 8111 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 8112 PCI_ANY_ID, PCI_ANY_ID, }, 8113 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 8114 PCI_ANY_ID, PCI_ANY_ID, }, 8115 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 8116 PCI_ANY_ID, PCI_ANY_ID, }, 8117 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 8118 PCI_ANY_ID, PCI_ANY_ID, }, 8119 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 8120 PCI_ANY_ID, PCI_ANY_ID, }, 8121 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 8122 PCI_ANY_ID, PCI_ANY_ID, }, 8123 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 8124 PCI_ANY_ID, PCI_ANY_ID, }, 8125 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 8126 PCI_ANY_ID, PCI_ANY_ID, }, 8127 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 8128 PCI_ANY_ID, PCI_ANY_ID, }, 8129 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 8130 PCI_ANY_ID, PCI_ANY_ID, }, 8131 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 8132 PCI_ANY_ID, PCI_ANY_ID, }, 8133 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 8134 PCI_ANY_ID, PCI_ANY_ID, }, 8135 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 8136 PCI_ANY_ID, PCI_ANY_ID, }, 8137 { 0 } 8138 }; 8139 8140 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 8141 8142 static struct pci_error_handlers lpfc_err_handler = { 8143 .error_detected = lpfc_io_error_detected, 8144 .slot_reset = lpfc_io_slot_reset, 8145 .resume = lpfc_io_resume, 8146 }; 8147 8148 static struct pci_driver lpfc_driver = { 8149 .name = LPFC_DRIVER_NAME, 8150 .id_table = lpfc_id_table, 8151 .probe = lpfc_pci_probe_one, 8152 .remove = __devexit_p(lpfc_pci_remove_one), 8153 .suspend = lpfc_pci_suspend_one, 8154 .resume = lpfc_pci_resume_one, 8155 .err_handler = &lpfc_err_handler, 8156 }; 8157 8158 /** 8159 * lpfc_init - lpfc module initialization routine 8160 * 8161 * This routine is to be invoked when the lpfc module is loaded into the 8162 * kernel. The special kernel macro module_init() is used to indicate the 8163 * role of this routine to the kernel as lpfc module entry point. 8164 * 8165 * Return codes 8166 * 0 - successful 8167 * -ENOMEM - FC attach transport failed 8168 * all others - failed 8169 */ 8170 static int __init 8171 lpfc_init(void) 8172 { 8173 int error = 0; 8174 8175 printk(LPFC_MODULE_DESC "\n"); 8176 printk(LPFC_COPYRIGHT "\n"); 8177 8178 if (lpfc_enable_npiv) { 8179 lpfc_transport_functions.vport_create = lpfc_vport_create; 8180 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 8181 } 8182 lpfc_transport_template = 8183 fc_attach_transport(&lpfc_transport_functions); 8184 if (lpfc_transport_template == NULL) 8185 return -ENOMEM; 8186 if (lpfc_enable_npiv) { 8187 lpfc_vport_transport_template = 8188 fc_attach_transport(&lpfc_vport_transport_functions); 8189 if (lpfc_vport_transport_template == NULL) { 8190 fc_release_transport(lpfc_transport_template); 8191 return -ENOMEM; 8192 } 8193 } 8194 error = pci_register_driver(&lpfc_driver); 8195 if (error) { 8196 fc_release_transport(lpfc_transport_template); 8197 if (lpfc_enable_npiv) 8198 fc_release_transport(lpfc_vport_transport_template); 8199 } 8200 8201 return error; 8202 } 8203 8204 /** 8205 * lpfc_exit - lpfc module removal routine 8206 * 8207 * This routine is invoked when the lpfc module is removed from the kernel. 8208 * The special kernel macro module_exit() is used to indicate the role of 8209 * this routine to the kernel as lpfc module exit point. 8210 */ 8211 static void __exit 8212 lpfc_exit(void) 8213 { 8214 pci_unregister_driver(&lpfc_driver); 8215 fc_release_transport(lpfc_transport_template); 8216 if (lpfc_enable_npiv) 8217 fc_release_transport(lpfc_vport_transport_template); 8218 if (_dump_buf_data) { 8219 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 8220 "_dump_buf_data at 0x%p\n", 8221 (1L << _dump_buf_data_order), _dump_buf_data); 8222 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 8223 } 8224 8225 if (_dump_buf_dif) { 8226 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 8227 "_dump_buf_dif at 0x%p\n", 8228 (1L << _dump_buf_dif_order), _dump_buf_dif); 8229 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 8230 } 8231 } 8232 8233 module_init(lpfc_init); 8234 module_exit(lpfc_exit); 8235 MODULE_LICENSE("GPL"); 8236 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 8237 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 8238 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 8239