1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2012 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/module.h> 28 #include <linux/kthread.h> 29 #include <linux/pci.h> 30 #include <linux/spinlock.h> 31 #include <linux/ctype.h> 32 #include <linux/aer.h> 33 #include <linux/slab.h> 34 #include <linux/firmware.h> 35 #include <linux/miscdevice.h> 36 37 #include <scsi/scsi.h> 38 #include <scsi/scsi_device.h> 39 #include <scsi/scsi_host.h> 40 #include <scsi/scsi_transport_fc.h> 41 42 #include "lpfc_hw4.h" 43 #include "lpfc_hw.h" 44 #include "lpfc_sli.h" 45 #include "lpfc_sli4.h" 46 #include "lpfc_nl.h" 47 #include "lpfc_disc.h" 48 #include "lpfc_scsi.h" 49 #include "lpfc.h" 50 #include "lpfc_logmsg.h" 51 #include "lpfc_crtn.h" 52 #include "lpfc_vport.h" 53 #include "lpfc_version.h" 54 55 char *_dump_buf_data; 56 unsigned long _dump_buf_data_order; 57 char *_dump_buf_dif; 58 unsigned long _dump_buf_dif_order; 59 spinlock_t _dump_buf_lock; 60 61 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 62 static int lpfc_post_rcv_buf(struct lpfc_hba *); 63 static int lpfc_sli4_queue_verify(struct lpfc_hba *); 64 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 65 static int lpfc_setup_endian_order(struct lpfc_hba *); 66 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 67 static void lpfc_free_els_sgl_list(struct lpfc_hba *); 68 static void lpfc_init_sgl_list(struct lpfc_hba *); 69 static int lpfc_init_active_sgl_array(struct lpfc_hba *); 70 static void lpfc_free_active_sgl(struct lpfc_hba *); 71 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 72 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 73 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 74 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 75 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 76 77 static struct scsi_transport_template *lpfc_transport_template = NULL; 78 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 79 static DEFINE_IDR(lpfc_hba_index); 80 81 /** 82 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 83 * @phba: pointer to lpfc hba data structure. 84 * 85 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 86 * mailbox command. It retrieves the revision information from the HBA and 87 * collects the Vital Product Data (VPD) about the HBA for preparing the 88 * configuration of the HBA. 89 * 90 * Return codes: 91 * 0 - success. 92 * -ERESTART - requests the SLI layer to reset the HBA and try again. 93 * Any other value - indicates an error. 94 **/ 95 int 96 lpfc_config_port_prep(struct lpfc_hba *phba) 97 { 98 lpfc_vpd_t *vp = &phba->vpd; 99 int i = 0, rc; 100 LPFC_MBOXQ_t *pmb; 101 MAILBOX_t *mb; 102 char *lpfc_vpd_data = NULL; 103 uint16_t offset = 0; 104 static char licensed[56] = 105 "key unlock for use with gnu public licensed code only\0"; 106 static int init_key = 1; 107 108 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 109 if (!pmb) { 110 phba->link_state = LPFC_HBA_ERROR; 111 return -ENOMEM; 112 } 113 114 mb = &pmb->u.mb; 115 phba->link_state = LPFC_INIT_MBX_CMDS; 116 117 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 118 if (init_key) { 119 uint32_t *ptext = (uint32_t *) licensed; 120 121 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 122 *ptext = cpu_to_be32(*ptext); 123 init_key = 0; 124 } 125 126 lpfc_read_nv(phba, pmb); 127 memset((char*)mb->un.varRDnvp.rsvd3, 0, 128 sizeof (mb->un.varRDnvp.rsvd3)); 129 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 130 sizeof (licensed)); 131 132 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 133 134 if (rc != MBX_SUCCESS) { 135 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 136 "0324 Config Port initialization " 137 "error, mbxCmd x%x READ_NVPARM, " 138 "mbxStatus x%x\n", 139 mb->mbxCommand, mb->mbxStatus); 140 mempool_free(pmb, phba->mbox_mem_pool); 141 return -ERESTART; 142 } 143 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 144 sizeof(phba->wwnn)); 145 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 146 sizeof(phba->wwpn)); 147 } 148 149 phba->sli3_options = 0x0; 150 151 /* Setup and issue mailbox READ REV command */ 152 lpfc_read_rev(phba, pmb); 153 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 154 if (rc != MBX_SUCCESS) { 155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 156 "0439 Adapter failed to init, mbxCmd x%x " 157 "READ_REV, mbxStatus x%x\n", 158 mb->mbxCommand, mb->mbxStatus); 159 mempool_free( pmb, phba->mbox_mem_pool); 160 return -ERESTART; 161 } 162 163 164 /* 165 * The value of rr must be 1 since the driver set the cv field to 1. 166 * This setting requires the FW to set all revision fields. 167 */ 168 if (mb->un.varRdRev.rr == 0) { 169 vp->rev.rBit = 0; 170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 171 "0440 Adapter failed to init, READ_REV has " 172 "missing revision information.\n"); 173 mempool_free(pmb, phba->mbox_mem_pool); 174 return -ERESTART; 175 } 176 177 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 178 mempool_free(pmb, phba->mbox_mem_pool); 179 return -EINVAL; 180 } 181 182 /* Save information as VPD data */ 183 vp->rev.rBit = 1; 184 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 185 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 186 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 187 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 188 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 189 vp->rev.biuRev = mb->un.varRdRev.biuRev; 190 vp->rev.smRev = mb->un.varRdRev.smRev; 191 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 192 vp->rev.endecRev = mb->un.varRdRev.endecRev; 193 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 194 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 195 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 196 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 197 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 198 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 199 200 /* If the sli feature level is less then 9, we must 201 * tear down all RPIs and VPIs on link down if NPIV 202 * is enabled. 203 */ 204 if (vp->rev.feaLevelHigh < 9) 205 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 206 207 if (lpfc_is_LC_HBA(phba->pcidev->device)) 208 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 209 sizeof (phba->RandomData)); 210 211 /* Get adapter VPD information */ 212 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 213 if (!lpfc_vpd_data) 214 goto out_free_mbox; 215 do { 216 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 217 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 218 219 if (rc != MBX_SUCCESS) { 220 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 221 "0441 VPD not present on adapter, " 222 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 223 mb->mbxCommand, mb->mbxStatus); 224 mb->un.varDmp.word_cnt = 0; 225 } 226 /* dump mem may return a zero when finished or we got a 227 * mailbox error, either way we are done. 228 */ 229 if (mb->un.varDmp.word_cnt == 0) 230 break; 231 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 232 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 233 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 234 lpfc_vpd_data + offset, 235 mb->un.varDmp.word_cnt); 236 offset += mb->un.varDmp.word_cnt; 237 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 238 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 239 240 kfree(lpfc_vpd_data); 241 out_free_mbox: 242 mempool_free(pmb, phba->mbox_mem_pool); 243 return 0; 244 } 245 246 /** 247 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 248 * @phba: pointer to lpfc hba data structure. 249 * @pmboxq: pointer to the driver internal queue element for mailbox command. 250 * 251 * This is the completion handler for driver's configuring asynchronous event 252 * mailbox command to the device. If the mailbox command returns successfully, 253 * it will set internal async event support flag to 1; otherwise, it will 254 * set internal async event support flag to 0. 255 **/ 256 static void 257 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 258 { 259 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 260 phba->temp_sensor_support = 1; 261 else 262 phba->temp_sensor_support = 0; 263 mempool_free(pmboxq, phba->mbox_mem_pool); 264 return; 265 } 266 267 /** 268 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 269 * @phba: pointer to lpfc hba data structure. 270 * @pmboxq: pointer to the driver internal queue element for mailbox command. 271 * 272 * This is the completion handler for dump mailbox command for getting 273 * wake up parameters. When this command complete, the response contain 274 * Option rom version of the HBA. This function translate the version number 275 * into a human readable string and store it in OptionROMVersion. 276 **/ 277 static void 278 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 279 { 280 struct prog_id *prg; 281 uint32_t prog_id_word; 282 char dist = ' '; 283 /* character array used for decoding dist type. */ 284 char dist_char[] = "nabx"; 285 286 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 287 mempool_free(pmboxq, phba->mbox_mem_pool); 288 return; 289 } 290 291 prg = (struct prog_id *) &prog_id_word; 292 293 /* word 7 contain option rom version */ 294 prog_id_word = pmboxq->u.mb.un.varWords[7]; 295 296 /* Decode the Option rom version word to a readable string */ 297 if (prg->dist < 4) 298 dist = dist_char[prg->dist]; 299 300 if ((prg->dist == 3) && (prg->num == 0)) 301 sprintf(phba->OptionROMVersion, "%d.%d%d", 302 prg->ver, prg->rev, prg->lev); 303 else 304 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 305 prg->ver, prg->rev, prg->lev, 306 dist, prg->num); 307 mempool_free(pmboxq, phba->mbox_mem_pool); 308 return; 309 } 310 311 /** 312 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 313 * cfg_soft_wwnn, cfg_soft_wwpn 314 * @vport: pointer to lpfc vport data structure. 315 * 316 * 317 * Return codes 318 * None. 319 **/ 320 void 321 lpfc_update_vport_wwn(struct lpfc_vport *vport) 322 { 323 /* If the soft name exists then update it using the service params */ 324 if (vport->phba->cfg_soft_wwnn) 325 u64_to_wwn(vport->phba->cfg_soft_wwnn, 326 vport->fc_sparam.nodeName.u.wwn); 327 if (vport->phba->cfg_soft_wwpn) 328 u64_to_wwn(vport->phba->cfg_soft_wwpn, 329 vport->fc_sparam.portName.u.wwn); 330 331 /* 332 * If the name is empty or there exists a soft name 333 * then copy the service params name, otherwise use the fc name 334 */ 335 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 336 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 337 sizeof(struct lpfc_name)); 338 else 339 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 340 sizeof(struct lpfc_name)); 341 342 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn) 343 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 344 sizeof(struct lpfc_name)); 345 else 346 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 347 sizeof(struct lpfc_name)); 348 } 349 350 /** 351 * lpfc_config_port_post - Perform lpfc initialization after config port 352 * @phba: pointer to lpfc hba data structure. 353 * 354 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 355 * command call. It performs all internal resource and state setups on the 356 * port: post IOCB buffers, enable appropriate host interrupt attentions, 357 * ELS ring timers, etc. 358 * 359 * Return codes 360 * 0 - success. 361 * Any other value - error. 362 **/ 363 int 364 lpfc_config_port_post(struct lpfc_hba *phba) 365 { 366 struct lpfc_vport *vport = phba->pport; 367 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 368 LPFC_MBOXQ_t *pmb; 369 MAILBOX_t *mb; 370 struct lpfc_dmabuf *mp; 371 struct lpfc_sli *psli = &phba->sli; 372 uint32_t status, timeout; 373 int i, j; 374 int rc; 375 376 spin_lock_irq(&phba->hbalock); 377 /* 378 * If the Config port completed correctly the HBA is not 379 * over heated any more. 380 */ 381 if (phba->over_temp_state == HBA_OVER_TEMP) 382 phba->over_temp_state = HBA_NORMAL_TEMP; 383 spin_unlock_irq(&phba->hbalock); 384 385 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 386 if (!pmb) { 387 phba->link_state = LPFC_HBA_ERROR; 388 return -ENOMEM; 389 } 390 mb = &pmb->u.mb; 391 392 /* Get login parameters for NID. */ 393 rc = lpfc_read_sparam(phba, pmb, 0); 394 if (rc) { 395 mempool_free(pmb, phba->mbox_mem_pool); 396 return -ENOMEM; 397 } 398 399 pmb->vport = vport; 400 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 401 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 402 "0448 Adapter failed init, mbxCmd x%x " 403 "READ_SPARM mbxStatus x%x\n", 404 mb->mbxCommand, mb->mbxStatus); 405 phba->link_state = LPFC_HBA_ERROR; 406 mp = (struct lpfc_dmabuf *) pmb->context1; 407 mempool_free(pmb, phba->mbox_mem_pool); 408 lpfc_mbuf_free(phba, mp->virt, mp->phys); 409 kfree(mp); 410 return -EIO; 411 } 412 413 mp = (struct lpfc_dmabuf *) pmb->context1; 414 415 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 416 lpfc_mbuf_free(phba, mp->virt, mp->phys); 417 kfree(mp); 418 pmb->context1 = NULL; 419 lpfc_update_vport_wwn(vport); 420 421 /* Update the fc_host data structures with new wwn. */ 422 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 423 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 424 fc_host_max_npiv_vports(shost) = phba->max_vpi; 425 426 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 427 /* This should be consolidated into parse_vpd ? - mr */ 428 if (phba->SerialNumber[0] == 0) { 429 uint8_t *outptr; 430 431 outptr = &vport->fc_nodename.u.s.IEEE[0]; 432 for (i = 0; i < 12; i++) { 433 status = *outptr++; 434 j = ((status & 0xf0) >> 4); 435 if (j <= 9) 436 phba->SerialNumber[i] = 437 (char)((uint8_t) 0x30 + (uint8_t) j); 438 else 439 phba->SerialNumber[i] = 440 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 441 i++; 442 j = (status & 0xf); 443 if (j <= 9) 444 phba->SerialNumber[i] = 445 (char)((uint8_t) 0x30 + (uint8_t) j); 446 else 447 phba->SerialNumber[i] = 448 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 449 } 450 } 451 452 lpfc_read_config(phba, pmb); 453 pmb->vport = vport; 454 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 456 "0453 Adapter failed to init, mbxCmd x%x " 457 "READ_CONFIG, mbxStatus x%x\n", 458 mb->mbxCommand, mb->mbxStatus); 459 phba->link_state = LPFC_HBA_ERROR; 460 mempool_free( pmb, phba->mbox_mem_pool); 461 return -EIO; 462 } 463 464 /* Check if the port is disabled */ 465 lpfc_sli_read_link_ste(phba); 466 467 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 468 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 469 phba->cfg_hba_queue_depth = 470 (mb->un.varRdConfig.max_xri + 1) - 471 lpfc_sli4_get_els_iocb_cnt(phba); 472 473 phba->lmt = mb->un.varRdConfig.lmt; 474 475 /* Get the default values for Model Name and Description */ 476 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 477 478 phba->link_state = LPFC_LINK_DOWN; 479 480 /* Only process IOCBs on ELS ring till hba_state is READY */ 481 if (psli->ring[psli->extra_ring].cmdringaddr) 482 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 483 if (psli->ring[psli->fcp_ring].cmdringaddr) 484 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 485 if (psli->ring[psli->next_ring].cmdringaddr) 486 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 487 488 /* Post receive buffers for desired rings */ 489 if (phba->sli_rev != 3) 490 lpfc_post_rcv_buf(phba); 491 492 /* 493 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 494 */ 495 if (phba->intr_type == MSIX) { 496 rc = lpfc_config_msi(phba, pmb); 497 if (rc) { 498 mempool_free(pmb, phba->mbox_mem_pool); 499 return -EIO; 500 } 501 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 502 if (rc != MBX_SUCCESS) { 503 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 504 "0352 Config MSI mailbox command " 505 "failed, mbxCmd x%x, mbxStatus x%x\n", 506 pmb->u.mb.mbxCommand, 507 pmb->u.mb.mbxStatus); 508 mempool_free(pmb, phba->mbox_mem_pool); 509 return -EIO; 510 } 511 } 512 513 spin_lock_irq(&phba->hbalock); 514 /* Initialize ERATT handling flag */ 515 phba->hba_flag &= ~HBA_ERATT_HANDLED; 516 517 /* Enable appropriate host interrupts */ 518 if (lpfc_readl(phba->HCregaddr, &status)) { 519 spin_unlock_irq(&phba->hbalock); 520 return -EIO; 521 } 522 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 523 if (psli->num_rings > 0) 524 status |= HC_R0INT_ENA; 525 if (psli->num_rings > 1) 526 status |= HC_R1INT_ENA; 527 if (psli->num_rings > 2) 528 status |= HC_R2INT_ENA; 529 if (psli->num_rings > 3) 530 status |= HC_R3INT_ENA; 531 532 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 533 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 534 status &= ~(HC_R0INT_ENA); 535 536 writel(status, phba->HCregaddr); 537 readl(phba->HCregaddr); /* flush */ 538 spin_unlock_irq(&phba->hbalock); 539 540 /* Set up ring-0 (ELS) timer */ 541 timeout = phba->fc_ratov * 2; 542 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 543 /* Set up heart beat (HB) timer */ 544 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 545 phba->hb_outstanding = 0; 546 phba->last_completion_time = jiffies; 547 /* Set up error attention (ERATT) polling timer */ 548 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 549 550 if (phba->hba_flag & LINK_DISABLED) { 551 lpfc_printf_log(phba, 552 KERN_ERR, LOG_INIT, 553 "2598 Adapter Link is disabled.\n"); 554 lpfc_down_link(phba, pmb); 555 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 556 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 557 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 558 lpfc_printf_log(phba, 559 KERN_ERR, LOG_INIT, 560 "2599 Adapter failed to issue DOWN_LINK" 561 " mbox command rc 0x%x\n", rc); 562 563 mempool_free(pmb, phba->mbox_mem_pool); 564 return -EIO; 565 } 566 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 567 mempool_free(pmb, phba->mbox_mem_pool); 568 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 569 if (rc) 570 return rc; 571 } 572 /* MBOX buffer will be freed in mbox compl */ 573 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 574 if (!pmb) { 575 phba->link_state = LPFC_HBA_ERROR; 576 return -ENOMEM; 577 } 578 579 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 580 pmb->mbox_cmpl = lpfc_config_async_cmpl; 581 pmb->vport = phba->pport; 582 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 583 584 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 585 lpfc_printf_log(phba, 586 KERN_ERR, 587 LOG_INIT, 588 "0456 Adapter failed to issue " 589 "ASYNCEVT_ENABLE mbox status x%x\n", 590 rc); 591 mempool_free(pmb, phba->mbox_mem_pool); 592 } 593 594 /* Get Option rom version */ 595 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 596 if (!pmb) { 597 phba->link_state = LPFC_HBA_ERROR; 598 return -ENOMEM; 599 } 600 601 lpfc_dump_wakeup_param(phba, pmb); 602 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 603 pmb->vport = phba->pport; 604 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 605 606 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 607 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 608 "to get Option ROM version status x%x\n", rc); 609 mempool_free(pmb, phba->mbox_mem_pool); 610 } 611 612 return 0; 613 } 614 615 /** 616 * lpfc_hba_init_link - Initialize the FC link 617 * @phba: pointer to lpfc hba data structure. 618 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 619 * 620 * This routine will issue the INIT_LINK mailbox command call. 621 * It is available to other drivers through the lpfc_hba data 622 * structure for use as a delayed link up mechanism with the 623 * module parameter lpfc_suppress_link_up. 624 * 625 * Return code 626 * 0 - success 627 * Any other value - error 628 **/ 629 int 630 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 631 { 632 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); 633 } 634 635 /** 636 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology 637 * @phba: pointer to lpfc hba data structure. 638 * @fc_topology: desired fc topology. 639 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 640 * 641 * This routine will issue the INIT_LINK mailbox command call. 642 * It is available to other drivers through the lpfc_hba data 643 * structure for use as a delayed link up mechanism with the 644 * module parameter lpfc_suppress_link_up. 645 * 646 * Return code 647 * 0 - success 648 * Any other value - error 649 **/ 650 int 651 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, 652 uint32_t flag) 653 { 654 struct lpfc_vport *vport = phba->pport; 655 LPFC_MBOXQ_t *pmb; 656 MAILBOX_t *mb; 657 int rc; 658 659 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 660 if (!pmb) { 661 phba->link_state = LPFC_HBA_ERROR; 662 return -ENOMEM; 663 } 664 mb = &pmb->u.mb; 665 pmb->vport = vport; 666 667 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || 668 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && 669 !(phba->lmt & LMT_1Gb)) || 670 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && 671 !(phba->lmt & LMT_2Gb)) || 672 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && 673 !(phba->lmt & LMT_4Gb)) || 674 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && 675 !(phba->lmt & LMT_8Gb)) || 676 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && 677 !(phba->lmt & LMT_10Gb)) || 678 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && 679 !(phba->lmt & LMT_16Gb))) { 680 /* Reset link speed to auto */ 681 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 682 "1302 Invalid speed for this board:%d " 683 "Reset link speed to auto.\n", 684 phba->cfg_link_speed); 685 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 686 } 687 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); 688 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 689 if (phba->sli_rev < LPFC_SLI_REV4) 690 lpfc_set_loopback_flag(phba); 691 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 692 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 693 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 694 "0498 Adapter failed to init, mbxCmd x%x " 695 "INIT_LINK, mbxStatus x%x\n", 696 mb->mbxCommand, mb->mbxStatus); 697 if (phba->sli_rev <= LPFC_SLI_REV3) { 698 /* Clear all interrupt enable conditions */ 699 writel(0, phba->HCregaddr); 700 readl(phba->HCregaddr); /* flush */ 701 /* Clear all pending interrupts */ 702 writel(0xffffffff, phba->HAregaddr); 703 readl(phba->HAregaddr); /* flush */ 704 } 705 phba->link_state = LPFC_HBA_ERROR; 706 if (rc != MBX_BUSY || flag == MBX_POLL) 707 mempool_free(pmb, phba->mbox_mem_pool); 708 return -EIO; 709 } 710 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 711 if (flag == MBX_POLL) 712 mempool_free(pmb, phba->mbox_mem_pool); 713 714 return 0; 715 } 716 717 /** 718 * lpfc_hba_down_link - this routine downs the FC link 719 * @phba: pointer to lpfc hba data structure. 720 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 721 * 722 * This routine will issue the DOWN_LINK mailbox command call. 723 * It is available to other drivers through the lpfc_hba data 724 * structure for use to stop the link. 725 * 726 * Return code 727 * 0 - success 728 * Any other value - error 729 **/ 730 int 731 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 732 { 733 LPFC_MBOXQ_t *pmb; 734 int rc; 735 736 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 737 if (!pmb) { 738 phba->link_state = LPFC_HBA_ERROR; 739 return -ENOMEM; 740 } 741 742 lpfc_printf_log(phba, 743 KERN_ERR, LOG_INIT, 744 "0491 Adapter Link is disabled.\n"); 745 lpfc_down_link(phba, pmb); 746 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 747 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 748 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 749 lpfc_printf_log(phba, 750 KERN_ERR, LOG_INIT, 751 "2522 Adapter failed to issue DOWN_LINK" 752 " mbox command rc 0x%x\n", rc); 753 754 mempool_free(pmb, phba->mbox_mem_pool); 755 return -EIO; 756 } 757 if (flag == MBX_POLL) 758 mempool_free(pmb, phba->mbox_mem_pool); 759 760 return 0; 761 } 762 763 /** 764 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 765 * @phba: pointer to lpfc HBA data structure. 766 * 767 * This routine will do LPFC uninitialization before the HBA is reset when 768 * bringing down the SLI Layer. 769 * 770 * Return codes 771 * 0 - success. 772 * Any other value - error. 773 **/ 774 int 775 lpfc_hba_down_prep(struct lpfc_hba *phba) 776 { 777 struct lpfc_vport **vports; 778 int i; 779 780 if (phba->sli_rev <= LPFC_SLI_REV3) { 781 /* Disable interrupts */ 782 writel(0, phba->HCregaddr); 783 readl(phba->HCregaddr); /* flush */ 784 } 785 786 if (phba->pport->load_flag & FC_UNLOADING) 787 lpfc_cleanup_discovery_resources(phba->pport); 788 else { 789 vports = lpfc_create_vport_work_array(phba); 790 if (vports != NULL) 791 for (i = 0; i <= phba->max_vports && 792 vports[i] != NULL; i++) 793 lpfc_cleanup_discovery_resources(vports[i]); 794 lpfc_destroy_vport_work_array(phba, vports); 795 } 796 return 0; 797 } 798 799 /** 800 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 801 * @phba: pointer to lpfc HBA data structure. 802 * 803 * This routine will do uninitialization after the HBA is reset when bring 804 * down the SLI Layer. 805 * 806 * Return codes 807 * 0 - success. 808 * Any other value - error. 809 **/ 810 static int 811 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 812 { 813 struct lpfc_sli *psli = &phba->sli; 814 struct lpfc_sli_ring *pring; 815 struct lpfc_dmabuf *mp, *next_mp; 816 LIST_HEAD(completions); 817 int i; 818 819 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 820 lpfc_sli_hbqbuf_free_all(phba); 821 else { 822 /* Cleanup preposted buffers on the ELS ring */ 823 pring = &psli->ring[LPFC_ELS_RING]; 824 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 825 list_del(&mp->list); 826 pring->postbufq_cnt--; 827 lpfc_mbuf_free(phba, mp->virt, mp->phys); 828 kfree(mp); 829 } 830 } 831 832 spin_lock_irq(&phba->hbalock); 833 for (i = 0; i < psli->num_rings; i++) { 834 pring = &psli->ring[i]; 835 836 /* At this point in time the HBA is either reset or DOA. Either 837 * way, nothing should be on txcmplq as it will NEVER complete. 838 */ 839 list_splice_init(&pring->txcmplq, &completions); 840 pring->txcmplq_cnt = 0; 841 spin_unlock_irq(&phba->hbalock); 842 843 /* Cancel all the IOCBs from the completions list */ 844 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 845 IOERR_SLI_ABORTED); 846 847 lpfc_sli_abort_iocb_ring(phba, pring); 848 spin_lock_irq(&phba->hbalock); 849 } 850 spin_unlock_irq(&phba->hbalock); 851 852 return 0; 853 } 854 855 /** 856 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 857 * @phba: pointer to lpfc HBA data structure. 858 * 859 * This routine will do uninitialization after the HBA is reset when bring 860 * down the SLI Layer. 861 * 862 * Return codes 863 * 0 - success. 864 * Any other value - error. 865 **/ 866 static int 867 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 868 { 869 struct lpfc_scsi_buf *psb, *psb_next; 870 LIST_HEAD(aborts); 871 int ret; 872 unsigned long iflag = 0; 873 struct lpfc_sglq *sglq_entry = NULL; 874 875 ret = lpfc_hba_down_post_s3(phba); 876 if (ret) 877 return ret; 878 /* At this point in time the HBA is either reset or DOA. Either 879 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 880 * on the lpfc_sgl_list so that it can either be freed if the 881 * driver is unloading or reposted if the driver is restarting 882 * the port. 883 */ 884 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 885 /* scsl_buf_list */ 886 /* abts_sgl_list_lock required because worker thread uses this 887 * list. 888 */ 889 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 890 list_for_each_entry(sglq_entry, 891 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 892 sglq_entry->state = SGL_FREED; 893 894 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 895 &phba->sli4_hba.lpfc_sgl_list); 896 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 897 /* abts_scsi_buf_list_lock required because worker thread uses this 898 * list. 899 */ 900 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 901 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 902 &aborts); 903 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 904 spin_unlock_irq(&phba->hbalock); 905 906 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 907 psb->pCmd = NULL; 908 psb->status = IOSTAT_SUCCESS; 909 } 910 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 911 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 912 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 913 return 0; 914 } 915 916 /** 917 * lpfc_hba_down_post - Wrapper func for hba down post routine 918 * @phba: pointer to lpfc HBA data structure. 919 * 920 * This routine wraps the actual SLI3 or SLI4 routine for performing 921 * uninitialization after the HBA is reset when bring down the SLI Layer. 922 * 923 * Return codes 924 * 0 - success. 925 * Any other value - error. 926 **/ 927 int 928 lpfc_hba_down_post(struct lpfc_hba *phba) 929 { 930 return (*phba->lpfc_hba_down_post)(phba); 931 } 932 933 /** 934 * lpfc_hb_timeout - The HBA-timer timeout handler 935 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 936 * 937 * This is the HBA-timer timeout handler registered to the lpfc driver. When 938 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 939 * work-port-events bitmap and the worker thread is notified. This timeout 940 * event will be used by the worker thread to invoke the actual timeout 941 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 942 * be performed in the timeout handler and the HBA timeout event bit shall 943 * be cleared by the worker thread after it has taken the event bitmap out. 944 **/ 945 static void 946 lpfc_hb_timeout(unsigned long ptr) 947 { 948 struct lpfc_hba *phba; 949 uint32_t tmo_posted; 950 unsigned long iflag; 951 952 phba = (struct lpfc_hba *)ptr; 953 954 /* Check for heart beat timeout conditions */ 955 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 956 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 957 if (!tmo_posted) 958 phba->pport->work_port_events |= WORKER_HB_TMO; 959 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 960 961 /* Tell the worker thread there is work to do */ 962 if (!tmo_posted) 963 lpfc_worker_wake_up(phba); 964 return; 965 } 966 967 /** 968 * lpfc_rrq_timeout - The RRQ-timer timeout handler 969 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 970 * 971 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 972 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 973 * work-port-events bitmap and the worker thread is notified. This timeout 974 * event will be used by the worker thread to invoke the actual timeout 975 * handler routine, lpfc_rrq_handler. Any periodical operations will 976 * be performed in the timeout handler and the RRQ timeout event bit shall 977 * be cleared by the worker thread after it has taken the event bitmap out. 978 **/ 979 static void 980 lpfc_rrq_timeout(unsigned long ptr) 981 { 982 struct lpfc_hba *phba; 983 unsigned long iflag; 984 985 phba = (struct lpfc_hba *)ptr; 986 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 987 phba->hba_flag |= HBA_RRQ_ACTIVE; 988 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 989 lpfc_worker_wake_up(phba); 990 } 991 992 /** 993 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 994 * @phba: pointer to lpfc hba data structure. 995 * @pmboxq: pointer to the driver internal queue element for mailbox command. 996 * 997 * This is the callback function to the lpfc heart-beat mailbox command. 998 * If configured, the lpfc driver issues the heart-beat mailbox command to 999 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 1000 * heart-beat mailbox command is issued, the driver shall set up heart-beat 1001 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 1002 * heart-beat outstanding state. Once the mailbox command comes back and 1003 * no error conditions detected, the heart-beat mailbox command timer is 1004 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1005 * state is cleared for the next heart-beat. If the timer expired with the 1006 * heart-beat outstanding state set, the driver will put the HBA offline. 1007 **/ 1008 static void 1009 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1010 { 1011 unsigned long drvr_flag; 1012 1013 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1014 phba->hb_outstanding = 0; 1015 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1016 1017 /* Check and reset heart-beat timer is necessary */ 1018 mempool_free(pmboxq, phba->mbox_mem_pool); 1019 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1020 !(phba->link_state == LPFC_HBA_ERROR) && 1021 !(phba->pport->load_flag & FC_UNLOADING)) 1022 mod_timer(&phba->hb_tmofunc, 1023 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1024 return; 1025 } 1026 1027 /** 1028 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1029 * @phba: pointer to lpfc hba data structure. 1030 * 1031 * This is the actual HBA-timer timeout handler to be invoked by the worker 1032 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1033 * handler performs any periodic operations needed for the device. If such 1034 * periodic event has already been attended to either in the interrupt handler 1035 * or by processing slow-ring or fast-ring events within the HBA-timer 1036 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1037 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1038 * is configured and there is no heart-beat mailbox command outstanding, a 1039 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1040 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1041 * to offline. 1042 **/ 1043 void 1044 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1045 { 1046 struct lpfc_vport **vports; 1047 LPFC_MBOXQ_t *pmboxq; 1048 struct lpfc_dmabuf *buf_ptr; 1049 int retval, i; 1050 struct lpfc_sli *psli = &phba->sli; 1051 LIST_HEAD(completions); 1052 1053 vports = lpfc_create_vport_work_array(phba); 1054 if (vports != NULL) 1055 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1056 lpfc_rcv_seq_check_edtov(vports[i]); 1057 lpfc_destroy_vport_work_array(phba, vports); 1058 1059 if ((phba->link_state == LPFC_HBA_ERROR) || 1060 (phba->pport->load_flag & FC_UNLOADING) || 1061 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1062 return; 1063 1064 spin_lock_irq(&phba->pport->work_port_lock); 1065 1066 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 1067 jiffies)) { 1068 spin_unlock_irq(&phba->pport->work_port_lock); 1069 if (!phba->hb_outstanding) 1070 mod_timer(&phba->hb_tmofunc, 1071 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1072 else 1073 mod_timer(&phba->hb_tmofunc, 1074 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1075 return; 1076 } 1077 spin_unlock_irq(&phba->pport->work_port_lock); 1078 1079 if (phba->elsbuf_cnt && 1080 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1081 spin_lock_irq(&phba->hbalock); 1082 list_splice_init(&phba->elsbuf, &completions); 1083 phba->elsbuf_cnt = 0; 1084 phba->elsbuf_prev_cnt = 0; 1085 spin_unlock_irq(&phba->hbalock); 1086 1087 while (!list_empty(&completions)) { 1088 list_remove_head(&completions, buf_ptr, 1089 struct lpfc_dmabuf, list); 1090 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1091 kfree(buf_ptr); 1092 } 1093 } 1094 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1095 1096 /* If there is no heart beat outstanding, issue a heartbeat command */ 1097 if (phba->cfg_enable_hba_heartbeat) { 1098 if (!phba->hb_outstanding) { 1099 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1100 (list_empty(&psli->mboxq))) { 1101 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1102 GFP_KERNEL); 1103 if (!pmboxq) { 1104 mod_timer(&phba->hb_tmofunc, 1105 jiffies + 1106 HZ * LPFC_HB_MBOX_INTERVAL); 1107 return; 1108 } 1109 1110 lpfc_heart_beat(phba, pmboxq); 1111 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1112 pmboxq->vport = phba->pport; 1113 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1114 MBX_NOWAIT); 1115 1116 if (retval != MBX_BUSY && 1117 retval != MBX_SUCCESS) { 1118 mempool_free(pmboxq, 1119 phba->mbox_mem_pool); 1120 mod_timer(&phba->hb_tmofunc, 1121 jiffies + 1122 HZ * LPFC_HB_MBOX_INTERVAL); 1123 return; 1124 } 1125 phba->skipped_hb = 0; 1126 phba->hb_outstanding = 1; 1127 } else if (time_before_eq(phba->last_completion_time, 1128 phba->skipped_hb)) { 1129 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1130 "2857 Last completion time not " 1131 " updated in %d ms\n", 1132 jiffies_to_msecs(jiffies 1133 - phba->last_completion_time)); 1134 } else 1135 phba->skipped_hb = jiffies; 1136 1137 mod_timer(&phba->hb_tmofunc, 1138 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1139 return; 1140 } else { 1141 /* 1142 * If heart beat timeout called with hb_outstanding set 1143 * we need to give the hb mailbox cmd a chance to 1144 * complete or TMO. 1145 */ 1146 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1147 "0459 Adapter heartbeat still out" 1148 "standing:last compl time was %d ms.\n", 1149 jiffies_to_msecs(jiffies 1150 - phba->last_completion_time)); 1151 mod_timer(&phba->hb_tmofunc, 1152 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1153 } 1154 } 1155 } 1156 1157 /** 1158 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1159 * @phba: pointer to lpfc hba data structure. 1160 * 1161 * This routine is called to bring the HBA offline when HBA hardware error 1162 * other than Port Error 6 has been detected. 1163 **/ 1164 static void 1165 lpfc_offline_eratt(struct lpfc_hba *phba) 1166 { 1167 struct lpfc_sli *psli = &phba->sli; 1168 1169 spin_lock_irq(&phba->hbalock); 1170 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1171 spin_unlock_irq(&phba->hbalock); 1172 lpfc_offline_prep(phba); 1173 1174 lpfc_offline(phba); 1175 lpfc_reset_barrier(phba); 1176 spin_lock_irq(&phba->hbalock); 1177 lpfc_sli_brdreset(phba); 1178 spin_unlock_irq(&phba->hbalock); 1179 lpfc_hba_down_post(phba); 1180 lpfc_sli_brdready(phba, HS_MBRDY); 1181 lpfc_unblock_mgmt_io(phba); 1182 phba->link_state = LPFC_HBA_ERROR; 1183 return; 1184 } 1185 1186 /** 1187 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1188 * @phba: pointer to lpfc hba data structure. 1189 * 1190 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1191 * other than Port Error 6 has been detected. 1192 **/ 1193 static void 1194 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1195 { 1196 lpfc_offline_prep(phba); 1197 lpfc_offline(phba); 1198 lpfc_sli4_brdreset(phba); 1199 lpfc_hba_down_post(phba); 1200 lpfc_sli4_post_status_check(phba); 1201 lpfc_unblock_mgmt_io(phba); 1202 phba->link_state = LPFC_HBA_ERROR; 1203 } 1204 1205 /** 1206 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1207 * @phba: pointer to lpfc hba data structure. 1208 * 1209 * This routine is invoked to handle the deferred HBA hardware error 1210 * conditions. This type of error is indicated by HBA by setting ER1 1211 * and another ER bit in the host status register. The driver will 1212 * wait until the ER1 bit clears before handling the error condition. 1213 **/ 1214 static void 1215 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1216 { 1217 uint32_t old_host_status = phba->work_hs; 1218 struct lpfc_sli_ring *pring; 1219 struct lpfc_sli *psli = &phba->sli; 1220 1221 /* If the pci channel is offline, ignore possible errors, 1222 * since we cannot communicate with the pci card anyway. 1223 */ 1224 if (pci_channel_offline(phba->pcidev)) { 1225 spin_lock_irq(&phba->hbalock); 1226 phba->hba_flag &= ~DEFER_ERATT; 1227 spin_unlock_irq(&phba->hbalock); 1228 return; 1229 } 1230 1231 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1232 "0479 Deferred Adapter Hardware Error " 1233 "Data: x%x x%x x%x\n", 1234 phba->work_hs, 1235 phba->work_status[0], phba->work_status[1]); 1236 1237 spin_lock_irq(&phba->hbalock); 1238 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1239 spin_unlock_irq(&phba->hbalock); 1240 1241 1242 /* 1243 * Firmware stops when it triggred erratt. That could cause the I/Os 1244 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1245 * SCSI layer retry it after re-establishing link. 1246 */ 1247 pring = &psli->ring[psli->fcp_ring]; 1248 lpfc_sli_abort_iocb_ring(phba, pring); 1249 1250 /* 1251 * There was a firmware error. Take the hba offline and then 1252 * attempt to restart it. 1253 */ 1254 lpfc_offline_prep(phba); 1255 lpfc_offline(phba); 1256 1257 /* Wait for the ER1 bit to clear.*/ 1258 while (phba->work_hs & HS_FFER1) { 1259 msleep(100); 1260 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1261 phba->work_hs = UNPLUG_ERR ; 1262 break; 1263 } 1264 /* If driver is unloading let the worker thread continue */ 1265 if (phba->pport->load_flag & FC_UNLOADING) { 1266 phba->work_hs = 0; 1267 break; 1268 } 1269 } 1270 1271 /* 1272 * This is to ptrotect against a race condition in which 1273 * first write to the host attention register clear the 1274 * host status register. 1275 */ 1276 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1277 phba->work_hs = old_host_status & ~HS_FFER1; 1278 1279 spin_lock_irq(&phba->hbalock); 1280 phba->hba_flag &= ~DEFER_ERATT; 1281 spin_unlock_irq(&phba->hbalock); 1282 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1283 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1284 } 1285 1286 static void 1287 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1288 { 1289 struct lpfc_board_event_header board_event; 1290 struct Scsi_Host *shost; 1291 1292 board_event.event_type = FC_REG_BOARD_EVENT; 1293 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1294 shost = lpfc_shost_from_vport(phba->pport); 1295 fc_host_post_vendor_event(shost, fc_get_event_number(), 1296 sizeof(board_event), 1297 (char *) &board_event, 1298 LPFC_NL_VENDOR_ID); 1299 } 1300 1301 /** 1302 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1303 * @phba: pointer to lpfc hba data structure. 1304 * 1305 * This routine is invoked to handle the following HBA hardware error 1306 * conditions: 1307 * 1 - HBA error attention interrupt 1308 * 2 - DMA ring index out of range 1309 * 3 - Mailbox command came back as unknown 1310 **/ 1311 static void 1312 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1313 { 1314 struct lpfc_vport *vport = phba->pport; 1315 struct lpfc_sli *psli = &phba->sli; 1316 struct lpfc_sli_ring *pring; 1317 uint32_t event_data; 1318 unsigned long temperature; 1319 struct temp_event temp_event_data; 1320 struct Scsi_Host *shost; 1321 1322 /* If the pci channel is offline, ignore possible errors, 1323 * since we cannot communicate with the pci card anyway. 1324 */ 1325 if (pci_channel_offline(phba->pcidev)) { 1326 spin_lock_irq(&phba->hbalock); 1327 phba->hba_flag &= ~DEFER_ERATT; 1328 spin_unlock_irq(&phba->hbalock); 1329 return; 1330 } 1331 1332 /* If resets are disabled then leave the HBA alone and return */ 1333 if (!phba->cfg_enable_hba_reset) 1334 return; 1335 1336 /* Send an internal error event to mgmt application */ 1337 lpfc_board_errevt_to_mgmt(phba); 1338 1339 if (phba->hba_flag & DEFER_ERATT) 1340 lpfc_handle_deferred_eratt(phba); 1341 1342 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1343 if (phba->work_hs & HS_FFER6) 1344 /* Re-establishing Link */ 1345 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1346 "1301 Re-establishing Link " 1347 "Data: x%x x%x x%x\n", 1348 phba->work_hs, phba->work_status[0], 1349 phba->work_status[1]); 1350 if (phba->work_hs & HS_FFER8) 1351 /* Device Zeroization */ 1352 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1353 "2861 Host Authentication device " 1354 "zeroization Data:x%x x%x x%x\n", 1355 phba->work_hs, phba->work_status[0], 1356 phba->work_status[1]); 1357 1358 spin_lock_irq(&phba->hbalock); 1359 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1360 spin_unlock_irq(&phba->hbalock); 1361 1362 /* 1363 * Firmware stops when it triggled erratt with HS_FFER6. 1364 * That could cause the I/Os dropped by the firmware. 1365 * Error iocb (I/O) on txcmplq and let the SCSI layer 1366 * retry it after re-establishing link. 1367 */ 1368 pring = &psli->ring[psli->fcp_ring]; 1369 lpfc_sli_abort_iocb_ring(phba, pring); 1370 1371 /* 1372 * There was a firmware error. Take the hba offline and then 1373 * attempt to restart it. 1374 */ 1375 lpfc_offline_prep(phba); 1376 lpfc_offline(phba); 1377 lpfc_sli_brdrestart(phba); 1378 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1379 lpfc_unblock_mgmt_io(phba); 1380 return; 1381 } 1382 lpfc_unblock_mgmt_io(phba); 1383 } else if (phba->work_hs & HS_CRIT_TEMP) { 1384 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1385 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1386 temp_event_data.event_code = LPFC_CRIT_TEMP; 1387 temp_event_data.data = (uint32_t)temperature; 1388 1389 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1390 "0406 Adapter maximum temperature exceeded " 1391 "(%ld), taking this port offline " 1392 "Data: x%x x%x x%x\n", 1393 temperature, phba->work_hs, 1394 phba->work_status[0], phba->work_status[1]); 1395 1396 shost = lpfc_shost_from_vport(phba->pport); 1397 fc_host_post_vendor_event(shost, fc_get_event_number(), 1398 sizeof(temp_event_data), 1399 (char *) &temp_event_data, 1400 SCSI_NL_VID_TYPE_PCI 1401 | PCI_VENDOR_ID_EMULEX); 1402 1403 spin_lock_irq(&phba->hbalock); 1404 phba->over_temp_state = HBA_OVER_TEMP; 1405 spin_unlock_irq(&phba->hbalock); 1406 lpfc_offline_eratt(phba); 1407 1408 } else { 1409 /* The if clause above forces this code path when the status 1410 * failure is a value other than FFER6. Do not call the offline 1411 * twice. This is the adapter hardware error path. 1412 */ 1413 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1414 "0457 Adapter Hardware Error " 1415 "Data: x%x x%x x%x\n", 1416 phba->work_hs, 1417 phba->work_status[0], phba->work_status[1]); 1418 1419 event_data = FC_REG_DUMP_EVENT; 1420 shost = lpfc_shost_from_vport(vport); 1421 fc_host_post_vendor_event(shost, fc_get_event_number(), 1422 sizeof(event_data), (char *) &event_data, 1423 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1424 1425 lpfc_offline_eratt(phba); 1426 } 1427 return; 1428 } 1429 1430 /** 1431 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1432 * @phba: pointer to lpfc hba data structure. 1433 * 1434 * This routine is invoked to handle the SLI4 HBA hardware error attention 1435 * conditions. 1436 **/ 1437 static void 1438 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1439 { 1440 struct lpfc_vport *vport = phba->pport; 1441 uint32_t event_data; 1442 struct Scsi_Host *shost; 1443 uint32_t if_type; 1444 struct lpfc_register portstat_reg = {0}; 1445 uint32_t reg_err1, reg_err2; 1446 uint32_t uerrlo_reg, uemasklo_reg; 1447 uint32_t pci_rd_rc1, pci_rd_rc2; 1448 int rc; 1449 1450 /* If the pci channel is offline, ignore possible errors, since 1451 * we cannot communicate with the pci card anyway. 1452 */ 1453 if (pci_channel_offline(phba->pcidev)) 1454 return; 1455 /* If resets are disabled then leave the HBA alone and return */ 1456 if (!phba->cfg_enable_hba_reset) 1457 return; 1458 1459 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1460 switch (if_type) { 1461 case LPFC_SLI_INTF_IF_TYPE_0: 1462 pci_rd_rc1 = lpfc_readl( 1463 phba->sli4_hba.u.if_type0.UERRLOregaddr, 1464 &uerrlo_reg); 1465 pci_rd_rc2 = lpfc_readl( 1466 phba->sli4_hba.u.if_type0.UEMASKLOregaddr, 1467 &uemasklo_reg); 1468 /* consider PCI bus read error as pci_channel_offline */ 1469 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) 1470 return; 1471 lpfc_sli4_offline_eratt(phba); 1472 break; 1473 case LPFC_SLI_INTF_IF_TYPE_2: 1474 pci_rd_rc1 = lpfc_readl( 1475 phba->sli4_hba.u.if_type2.STATUSregaddr, 1476 &portstat_reg.word0); 1477 /* consider PCI bus read error as pci_channel_offline */ 1478 if (pci_rd_rc1 == -EIO) { 1479 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1480 "3151 PCI bus read access failure: x%x\n", 1481 readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); 1482 return; 1483 } 1484 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); 1485 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); 1486 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1487 /* TODO: Register for Overtemp async events. */ 1488 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1489 "2889 Port Overtemperature event, " 1490 "taking port offline\n"); 1491 spin_lock_irq(&phba->hbalock); 1492 phba->over_temp_state = HBA_OVER_TEMP; 1493 spin_unlock_irq(&phba->hbalock); 1494 lpfc_sli4_offline_eratt(phba); 1495 break; 1496 } 1497 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1498 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) 1499 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1500 "3143 Port Down: Firmware Restarted\n"); 1501 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1502 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1503 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1504 "3144 Port Down: Debug Dump\n"); 1505 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1506 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) 1507 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1508 "3145 Port Down: Provisioning\n"); 1509 /* 1510 * On error status condition, driver need to wait for port 1511 * ready before performing reset. 1512 */ 1513 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1514 if (!rc) { 1515 /* need reset: attempt for port recovery */ 1516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1517 "2887 Reset Needed: Attempting Port " 1518 "Recovery...\n"); 1519 lpfc_offline_prep(phba); 1520 lpfc_offline(phba); 1521 lpfc_sli_brdrestart(phba); 1522 if (lpfc_online(phba) == 0) { 1523 lpfc_unblock_mgmt_io(phba); 1524 /* don't report event on forced debug dump */ 1525 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1526 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1527 return; 1528 else 1529 break; 1530 } 1531 /* fall through for not able to recover */ 1532 } 1533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1534 "3152 Unrecoverable error, bring the port " 1535 "offline\n"); 1536 lpfc_sli4_offline_eratt(phba); 1537 break; 1538 case LPFC_SLI_INTF_IF_TYPE_1: 1539 default: 1540 break; 1541 } 1542 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1543 "3123 Report dump event to upper layer\n"); 1544 /* Send an internal error event to mgmt application */ 1545 lpfc_board_errevt_to_mgmt(phba); 1546 1547 event_data = FC_REG_DUMP_EVENT; 1548 shost = lpfc_shost_from_vport(vport); 1549 fc_host_post_vendor_event(shost, fc_get_event_number(), 1550 sizeof(event_data), (char *) &event_data, 1551 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1552 } 1553 1554 /** 1555 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1556 * @phba: pointer to lpfc HBA data structure. 1557 * 1558 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1559 * routine from the API jump table function pointer from the lpfc_hba struct. 1560 * 1561 * Return codes 1562 * 0 - success. 1563 * Any other value - error. 1564 **/ 1565 void 1566 lpfc_handle_eratt(struct lpfc_hba *phba) 1567 { 1568 (*phba->lpfc_handle_eratt)(phba); 1569 } 1570 1571 /** 1572 * lpfc_handle_latt - The HBA link event handler 1573 * @phba: pointer to lpfc hba data structure. 1574 * 1575 * This routine is invoked from the worker thread to handle a HBA host 1576 * attention link event. 1577 **/ 1578 void 1579 lpfc_handle_latt(struct lpfc_hba *phba) 1580 { 1581 struct lpfc_vport *vport = phba->pport; 1582 struct lpfc_sli *psli = &phba->sli; 1583 LPFC_MBOXQ_t *pmb; 1584 volatile uint32_t control; 1585 struct lpfc_dmabuf *mp; 1586 int rc = 0; 1587 1588 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1589 if (!pmb) { 1590 rc = 1; 1591 goto lpfc_handle_latt_err_exit; 1592 } 1593 1594 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1595 if (!mp) { 1596 rc = 2; 1597 goto lpfc_handle_latt_free_pmb; 1598 } 1599 1600 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1601 if (!mp->virt) { 1602 rc = 3; 1603 goto lpfc_handle_latt_free_mp; 1604 } 1605 1606 /* Cleanup any outstanding ELS commands */ 1607 lpfc_els_flush_all_cmd(phba); 1608 1609 psli->slistat.link_event++; 1610 lpfc_read_topology(phba, pmb, mp); 1611 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1612 pmb->vport = vport; 1613 /* Block ELS IOCBs until we have processed this mbox command */ 1614 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1615 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1616 if (rc == MBX_NOT_FINISHED) { 1617 rc = 4; 1618 goto lpfc_handle_latt_free_mbuf; 1619 } 1620 1621 /* Clear Link Attention in HA REG */ 1622 spin_lock_irq(&phba->hbalock); 1623 writel(HA_LATT, phba->HAregaddr); 1624 readl(phba->HAregaddr); /* flush */ 1625 spin_unlock_irq(&phba->hbalock); 1626 1627 return; 1628 1629 lpfc_handle_latt_free_mbuf: 1630 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1631 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1632 lpfc_handle_latt_free_mp: 1633 kfree(mp); 1634 lpfc_handle_latt_free_pmb: 1635 mempool_free(pmb, phba->mbox_mem_pool); 1636 lpfc_handle_latt_err_exit: 1637 /* Enable Link attention interrupts */ 1638 spin_lock_irq(&phba->hbalock); 1639 psli->sli_flag |= LPFC_PROCESS_LA; 1640 control = readl(phba->HCregaddr); 1641 control |= HC_LAINT_ENA; 1642 writel(control, phba->HCregaddr); 1643 readl(phba->HCregaddr); /* flush */ 1644 1645 /* Clear Link Attention in HA REG */ 1646 writel(HA_LATT, phba->HAregaddr); 1647 readl(phba->HAregaddr); /* flush */ 1648 spin_unlock_irq(&phba->hbalock); 1649 lpfc_linkdown(phba); 1650 phba->link_state = LPFC_HBA_ERROR; 1651 1652 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1653 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1654 1655 return; 1656 } 1657 1658 /** 1659 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1660 * @phba: pointer to lpfc hba data structure. 1661 * @vpd: pointer to the vital product data. 1662 * @len: length of the vital product data in bytes. 1663 * 1664 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1665 * an array of characters. In this routine, the ModelName, ProgramType, and 1666 * ModelDesc, etc. fields of the phba data structure will be populated. 1667 * 1668 * Return codes 1669 * 0 - pointer to the VPD passed in is NULL 1670 * 1 - success 1671 **/ 1672 int 1673 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1674 { 1675 uint8_t lenlo, lenhi; 1676 int Length; 1677 int i, j; 1678 int finished = 0; 1679 int index = 0; 1680 1681 if (!vpd) 1682 return 0; 1683 1684 /* Vital Product */ 1685 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1686 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1687 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1688 (uint32_t) vpd[3]); 1689 while (!finished && (index < (len - 4))) { 1690 switch (vpd[index]) { 1691 case 0x82: 1692 case 0x91: 1693 index += 1; 1694 lenlo = vpd[index]; 1695 index += 1; 1696 lenhi = vpd[index]; 1697 index += 1; 1698 i = ((((unsigned short)lenhi) << 8) + lenlo); 1699 index += i; 1700 break; 1701 case 0x90: 1702 index += 1; 1703 lenlo = vpd[index]; 1704 index += 1; 1705 lenhi = vpd[index]; 1706 index += 1; 1707 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1708 if (Length > len - index) 1709 Length = len - index; 1710 while (Length > 0) { 1711 /* Look for Serial Number */ 1712 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1713 index += 2; 1714 i = vpd[index]; 1715 index += 1; 1716 j = 0; 1717 Length -= (3+i); 1718 while(i--) { 1719 phba->SerialNumber[j++] = vpd[index++]; 1720 if (j == 31) 1721 break; 1722 } 1723 phba->SerialNumber[j] = 0; 1724 continue; 1725 } 1726 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1727 phba->vpd_flag |= VPD_MODEL_DESC; 1728 index += 2; 1729 i = vpd[index]; 1730 index += 1; 1731 j = 0; 1732 Length -= (3+i); 1733 while(i--) { 1734 phba->ModelDesc[j++] = vpd[index++]; 1735 if (j == 255) 1736 break; 1737 } 1738 phba->ModelDesc[j] = 0; 1739 continue; 1740 } 1741 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1742 phba->vpd_flag |= VPD_MODEL_NAME; 1743 index += 2; 1744 i = vpd[index]; 1745 index += 1; 1746 j = 0; 1747 Length -= (3+i); 1748 while(i--) { 1749 phba->ModelName[j++] = vpd[index++]; 1750 if (j == 79) 1751 break; 1752 } 1753 phba->ModelName[j] = 0; 1754 continue; 1755 } 1756 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1757 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1758 index += 2; 1759 i = vpd[index]; 1760 index += 1; 1761 j = 0; 1762 Length -= (3+i); 1763 while(i--) { 1764 phba->ProgramType[j++] = vpd[index++]; 1765 if (j == 255) 1766 break; 1767 } 1768 phba->ProgramType[j] = 0; 1769 continue; 1770 } 1771 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1772 phba->vpd_flag |= VPD_PORT; 1773 index += 2; 1774 i = vpd[index]; 1775 index += 1; 1776 j = 0; 1777 Length -= (3+i); 1778 while(i--) { 1779 if ((phba->sli_rev == LPFC_SLI_REV4) && 1780 (phba->sli4_hba.pport_name_sta == 1781 LPFC_SLI4_PPNAME_GET)) { 1782 j++; 1783 index++; 1784 } else 1785 phba->Port[j++] = vpd[index++]; 1786 if (j == 19) 1787 break; 1788 } 1789 if ((phba->sli_rev != LPFC_SLI_REV4) || 1790 (phba->sli4_hba.pport_name_sta == 1791 LPFC_SLI4_PPNAME_NON)) 1792 phba->Port[j] = 0; 1793 continue; 1794 } 1795 else { 1796 index += 2; 1797 i = vpd[index]; 1798 index += 1; 1799 index += i; 1800 Length -= (3 + i); 1801 } 1802 } 1803 finished = 0; 1804 break; 1805 case 0x78: 1806 finished = 1; 1807 break; 1808 default: 1809 index ++; 1810 break; 1811 } 1812 } 1813 1814 return(1); 1815 } 1816 1817 /** 1818 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1819 * @phba: pointer to lpfc hba data structure. 1820 * @mdp: pointer to the data structure to hold the derived model name. 1821 * @descp: pointer to the data structure to hold the derived description. 1822 * 1823 * This routine retrieves HBA's description based on its registered PCI device 1824 * ID. The @descp passed into this function points to an array of 256 chars. It 1825 * shall be returned with the model name, maximum speed, and the host bus type. 1826 * The @mdp passed into this function points to an array of 80 chars. When the 1827 * function returns, the @mdp will be filled with the model name. 1828 **/ 1829 static void 1830 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1831 { 1832 lpfc_vpd_t *vp; 1833 uint16_t dev_id = phba->pcidev->device; 1834 int max_speed; 1835 int GE = 0; 1836 int oneConnect = 0; /* default is not a oneConnect */ 1837 struct { 1838 char *name; 1839 char *bus; 1840 char *function; 1841 } m = {"<Unknown>", "", ""}; 1842 1843 if (mdp && mdp[0] != '\0' 1844 && descp && descp[0] != '\0') 1845 return; 1846 1847 if (phba->lmt & LMT_16Gb) 1848 max_speed = 16; 1849 else if (phba->lmt & LMT_10Gb) 1850 max_speed = 10; 1851 else if (phba->lmt & LMT_8Gb) 1852 max_speed = 8; 1853 else if (phba->lmt & LMT_4Gb) 1854 max_speed = 4; 1855 else if (phba->lmt & LMT_2Gb) 1856 max_speed = 2; 1857 else 1858 max_speed = 1; 1859 1860 vp = &phba->vpd; 1861 1862 switch (dev_id) { 1863 case PCI_DEVICE_ID_FIREFLY: 1864 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1865 break; 1866 case PCI_DEVICE_ID_SUPERFLY: 1867 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1868 m = (typeof(m)){"LP7000", "PCI", 1869 "Fibre Channel Adapter"}; 1870 else 1871 m = (typeof(m)){"LP7000E", "PCI", 1872 "Fibre Channel Adapter"}; 1873 break; 1874 case PCI_DEVICE_ID_DRAGONFLY: 1875 m = (typeof(m)){"LP8000", "PCI", 1876 "Fibre Channel Adapter"}; 1877 break; 1878 case PCI_DEVICE_ID_CENTAUR: 1879 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1880 m = (typeof(m)){"LP9002", "PCI", 1881 "Fibre Channel Adapter"}; 1882 else 1883 m = (typeof(m)){"LP9000", "PCI", 1884 "Fibre Channel Adapter"}; 1885 break; 1886 case PCI_DEVICE_ID_RFLY: 1887 m = (typeof(m)){"LP952", "PCI", 1888 "Fibre Channel Adapter"}; 1889 break; 1890 case PCI_DEVICE_ID_PEGASUS: 1891 m = (typeof(m)){"LP9802", "PCI-X", 1892 "Fibre Channel Adapter"}; 1893 break; 1894 case PCI_DEVICE_ID_THOR: 1895 m = (typeof(m)){"LP10000", "PCI-X", 1896 "Fibre Channel Adapter"}; 1897 break; 1898 case PCI_DEVICE_ID_VIPER: 1899 m = (typeof(m)){"LPX1000", "PCI-X", 1900 "Fibre Channel Adapter"}; 1901 break; 1902 case PCI_DEVICE_ID_PFLY: 1903 m = (typeof(m)){"LP982", "PCI-X", 1904 "Fibre Channel Adapter"}; 1905 break; 1906 case PCI_DEVICE_ID_TFLY: 1907 m = (typeof(m)){"LP1050", "PCI-X", 1908 "Fibre Channel Adapter"}; 1909 break; 1910 case PCI_DEVICE_ID_HELIOS: 1911 m = (typeof(m)){"LP11000", "PCI-X2", 1912 "Fibre Channel Adapter"}; 1913 break; 1914 case PCI_DEVICE_ID_HELIOS_SCSP: 1915 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1916 "Fibre Channel Adapter"}; 1917 break; 1918 case PCI_DEVICE_ID_HELIOS_DCSP: 1919 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1920 "Fibre Channel Adapter"}; 1921 break; 1922 case PCI_DEVICE_ID_NEPTUNE: 1923 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1924 break; 1925 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1926 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1927 break; 1928 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1929 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1930 break; 1931 case PCI_DEVICE_ID_BMID: 1932 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1933 break; 1934 case PCI_DEVICE_ID_BSMB: 1935 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1936 break; 1937 case PCI_DEVICE_ID_ZEPHYR: 1938 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1939 break; 1940 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1941 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1942 break; 1943 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1944 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1945 GE = 1; 1946 break; 1947 case PCI_DEVICE_ID_ZMID: 1948 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1949 break; 1950 case PCI_DEVICE_ID_ZSMB: 1951 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1952 break; 1953 case PCI_DEVICE_ID_LP101: 1954 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1955 break; 1956 case PCI_DEVICE_ID_LP10000S: 1957 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1958 break; 1959 case PCI_DEVICE_ID_LP11000S: 1960 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 1961 break; 1962 case PCI_DEVICE_ID_LPE11000S: 1963 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 1964 break; 1965 case PCI_DEVICE_ID_SAT: 1966 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 1967 break; 1968 case PCI_DEVICE_ID_SAT_MID: 1969 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 1970 break; 1971 case PCI_DEVICE_ID_SAT_SMB: 1972 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 1973 break; 1974 case PCI_DEVICE_ID_SAT_DCSP: 1975 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 1976 break; 1977 case PCI_DEVICE_ID_SAT_SCSP: 1978 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 1979 break; 1980 case PCI_DEVICE_ID_SAT_S: 1981 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 1982 break; 1983 case PCI_DEVICE_ID_HORNET: 1984 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 1985 GE = 1; 1986 break; 1987 case PCI_DEVICE_ID_PROTEUS_VF: 1988 m = (typeof(m)){"LPev12000", "PCIe IOV", 1989 "Fibre Channel Adapter"}; 1990 break; 1991 case PCI_DEVICE_ID_PROTEUS_PF: 1992 m = (typeof(m)){"LPev12000", "PCIe IOV", 1993 "Fibre Channel Adapter"}; 1994 break; 1995 case PCI_DEVICE_ID_PROTEUS_S: 1996 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 1997 "Fibre Channel Adapter"}; 1998 break; 1999 case PCI_DEVICE_ID_TIGERSHARK: 2000 oneConnect = 1; 2001 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2002 break; 2003 case PCI_DEVICE_ID_TOMCAT: 2004 oneConnect = 1; 2005 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2006 break; 2007 case PCI_DEVICE_ID_FALCON: 2008 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2009 "EmulexSecure Fibre"}; 2010 break; 2011 case PCI_DEVICE_ID_BALIUS: 2012 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2013 "Fibre Channel Adapter"}; 2014 break; 2015 case PCI_DEVICE_ID_LANCER_FC: 2016 case PCI_DEVICE_ID_LANCER_FC_VF: 2017 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2018 break; 2019 case PCI_DEVICE_ID_LANCER_FCOE: 2020 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2021 oneConnect = 1; 2022 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2023 break; 2024 default: 2025 m = (typeof(m)){"Unknown", "", ""}; 2026 break; 2027 } 2028 2029 if (mdp && mdp[0] == '\0') 2030 snprintf(mdp, 79,"%s", m.name); 2031 /* 2032 * oneConnect hba requires special processing, they are all initiators 2033 * and we put the port number on the end 2034 */ 2035 if (descp && descp[0] == '\0') { 2036 if (oneConnect) 2037 snprintf(descp, 255, 2038 "Emulex OneConnect %s, %s Initiator, Port %s", 2039 m.name, m.function, 2040 phba->Port); 2041 else 2042 snprintf(descp, 255, 2043 "Emulex %s %d%s %s %s", 2044 m.name, max_speed, (GE) ? "GE" : "Gb", 2045 m.bus, m.function); 2046 } 2047 } 2048 2049 /** 2050 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2051 * @phba: pointer to lpfc hba data structure. 2052 * @pring: pointer to a IOCB ring. 2053 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2054 * 2055 * This routine posts a given number of IOCBs with the associated DMA buffer 2056 * descriptors specified by the cnt argument to the given IOCB ring. 2057 * 2058 * Return codes 2059 * The number of IOCBs NOT able to be posted to the IOCB ring. 2060 **/ 2061 int 2062 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2063 { 2064 IOCB_t *icmd; 2065 struct lpfc_iocbq *iocb; 2066 struct lpfc_dmabuf *mp1, *mp2; 2067 2068 cnt += pring->missbufcnt; 2069 2070 /* While there are buffers to post */ 2071 while (cnt > 0) { 2072 /* Allocate buffer for command iocb */ 2073 iocb = lpfc_sli_get_iocbq(phba); 2074 if (iocb == NULL) { 2075 pring->missbufcnt = cnt; 2076 return cnt; 2077 } 2078 icmd = &iocb->iocb; 2079 2080 /* 2 buffers can be posted per command */ 2081 /* Allocate buffer to post */ 2082 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2083 if (mp1) 2084 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2085 if (!mp1 || !mp1->virt) { 2086 kfree(mp1); 2087 lpfc_sli_release_iocbq(phba, iocb); 2088 pring->missbufcnt = cnt; 2089 return cnt; 2090 } 2091 2092 INIT_LIST_HEAD(&mp1->list); 2093 /* Allocate buffer to post */ 2094 if (cnt > 1) { 2095 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2096 if (mp2) 2097 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2098 &mp2->phys); 2099 if (!mp2 || !mp2->virt) { 2100 kfree(mp2); 2101 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2102 kfree(mp1); 2103 lpfc_sli_release_iocbq(phba, iocb); 2104 pring->missbufcnt = cnt; 2105 return cnt; 2106 } 2107 2108 INIT_LIST_HEAD(&mp2->list); 2109 } else { 2110 mp2 = NULL; 2111 } 2112 2113 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2114 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2115 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2116 icmd->ulpBdeCount = 1; 2117 cnt--; 2118 if (mp2) { 2119 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2120 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2121 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2122 cnt--; 2123 icmd->ulpBdeCount = 2; 2124 } 2125 2126 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2127 icmd->ulpLe = 1; 2128 2129 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2130 IOCB_ERROR) { 2131 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2132 kfree(mp1); 2133 cnt++; 2134 if (mp2) { 2135 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2136 kfree(mp2); 2137 cnt++; 2138 } 2139 lpfc_sli_release_iocbq(phba, iocb); 2140 pring->missbufcnt = cnt; 2141 return cnt; 2142 } 2143 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2144 if (mp2) 2145 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2146 } 2147 pring->missbufcnt = 0; 2148 return 0; 2149 } 2150 2151 /** 2152 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2153 * @phba: pointer to lpfc hba data structure. 2154 * 2155 * This routine posts initial receive IOCB buffers to the ELS ring. The 2156 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2157 * set to 64 IOCBs. 2158 * 2159 * Return codes 2160 * 0 - success (currently always success) 2161 **/ 2162 static int 2163 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2164 { 2165 struct lpfc_sli *psli = &phba->sli; 2166 2167 /* Ring 0, ELS / CT buffers */ 2168 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2169 /* Ring 2 - FCP no buffers needed */ 2170 2171 return 0; 2172 } 2173 2174 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2175 2176 /** 2177 * lpfc_sha_init - Set up initial array of hash table entries 2178 * @HashResultPointer: pointer to an array as hash table. 2179 * 2180 * This routine sets up the initial values to the array of hash table entries 2181 * for the LC HBAs. 2182 **/ 2183 static void 2184 lpfc_sha_init(uint32_t * HashResultPointer) 2185 { 2186 HashResultPointer[0] = 0x67452301; 2187 HashResultPointer[1] = 0xEFCDAB89; 2188 HashResultPointer[2] = 0x98BADCFE; 2189 HashResultPointer[3] = 0x10325476; 2190 HashResultPointer[4] = 0xC3D2E1F0; 2191 } 2192 2193 /** 2194 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2195 * @HashResultPointer: pointer to an initial/result hash table. 2196 * @HashWorkingPointer: pointer to an working hash table. 2197 * 2198 * This routine iterates an initial hash table pointed by @HashResultPointer 2199 * with the values from the working hash table pointeed by @HashWorkingPointer. 2200 * The results are putting back to the initial hash table, returned through 2201 * the @HashResultPointer as the result hash table. 2202 **/ 2203 static void 2204 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2205 { 2206 int t; 2207 uint32_t TEMP; 2208 uint32_t A, B, C, D, E; 2209 t = 16; 2210 do { 2211 HashWorkingPointer[t] = 2212 S(1, 2213 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2214 8] ^ 2215 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2216 } while (++t <= 79); 2217 t = 0; 2218 A = HashResultPointer[0]; 2219 B = HashResultPointer[1]; 2220 C = HashResultPointer[2]; 2221 D = HashResultPointer[3]; 2222 E = HashResultPointer[4]; 2223 2224 do { 2225 if (t < 20) { 2226 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2227 } else if (t < 40) { 2228 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2229 } else if (t < 60) { 2230 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2231 } else { 2232 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2233 } 2234 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2235 E = D; 2236 D = C; 2237 C = S(30, B); 2238 B = A; 2239 A = TEMP; 2240 } while (++t <= 79); 2241 2242 HashResultPointer[0] += A; 2243 HashResultPointer[1] += B; 2244 HashResultPointer[2] += C; 2245 HashResultPointer[3] += D; 2246 HashResultPointer[4] += E; 2247 2248 } 2249 2250 /** 2251 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2252 * @RandomChallenge: pointer to the entry of host challenge random number array. 2253 * @HashWorking: pointer to the entry of the working hash array. 2254 * 2255 * This routine calculates the working hash array referred by @HashWorking 2256 * from the challenge random numbers associated with the host, referred by 2257 * @RandomChallenge. The result is put into the entry of the working hash 2258 * array and returned by reference through @HashWorking. 2259 **/ 2260 static void 2261 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2262 { 2263 *HashWorking = (*RandomChallenge ^ *HashWorking); 2264 } 2265 2266 /** 2267 * lpfc_hba_init - Perform special handling for LC HBA initialization 2268 * @phba: pointer to lpfc hba data structure. 2269 * @hbainit: pointer to an array of unsigned 32-bit integers. 2270 * 2271 * This routine performs the special handling for LC HBA initialization. 2272 **/ 2273 void 2274 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2275 { 2276 int t; 2277 uint32_t *HashWorking; 2278 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2279 2280 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2281 if (!HashWorking) 2282 return; 2283 2284 HashWorking[0] = HashWorking[78] = *pwwnn++; 2285 HashWorking[1] = HashWorking[79] = *pwwnn; 2286 2287 for (t = 0; t < 7; t++) 2288 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2289 2290 lpfc_sha_init(hbainit); 2291 lpfc_sha_iterate(hbainit, HashWorking); 2292 kfree(HashWorking); 2293 } 2294 2295 /** 2296 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2297 * @vport: pointer to a virtual N_Port data structure. 2298 * 2299 * This routine performs the necessary cleanups before deleting the @vport. 2300 * It invokes the discovery state machine to perform necessary state 2301 * transitions and to release the ndlps associated with the @vport. Note, 2302 * the physical port is treated as @vport 0. 2303 **/ 2304 void 2305 lpfc_cleanup(struct lpfc_vport *vport) 2306 { 2307 struct lpfc_hba *phba = vport->phba; 2308 struct lpfc_nodelist *ndlp, *next_ndlp; 2309 int i = 0; 2310 2311 if (phba->link_state > LPFC_LINK_DOWN) 2312 lpfc_port_link_failure(vport); 2313 2314 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2315 if (!NLP_CHK_NODE_ACT(ndlp)) { 2316 ndlp = lpfc_enable_node(vport, ndlp, 2317 NLP_STE_UNUSED_NODE); 2318 if (!ndlp) 2319 continue; 2320 spin_lock_irq(&phba->ndlp_lock); 2321 NLP_SET_FREE_REQ(ndlp); 2322 spin_unlock_irq(&phba->ndlp_lock); 2323 /* Trigger the release of the ndlp memory */ 2324 lpfc_nlp_put(ndlp); 2325 continue; 2326 } 2327 spin_lock_irq(&phba->ndlp_lock); 2328 if (NLP_CHK_FREE_REQ(ndlp)) { 2329 /* The ndlp should not be in memory free mode already */ 2330 spin_unlock_irq(&phba->ndlp_lock); 2331 continue; 2332 } else 2333 /* Indicate request for freeing ndlp memory */ 2334 NLP_SET_FREE_REQ(ndlp); 2335 spin_unlock_irq(&phba->ndlp_lock); 2336 2337 if (vport->port_type != LPFC_PHYSICAL_PORT && 2338 ndlp->nlp_DID == Fabric_DID) { 2339 /* Just free up ndlp with Fabric_DID for vports */ 2340 lpfc_nlp_put(ndlp); 2341 continue; 2342 } 2343 2344 /* take care of nodes in unused state before the state 2345 * machine taking action. 2346 */ 2347 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 2348 lpfc_nlp_put(ndlp); 2349 continue; 2350 } 2351 2352 if (ndlp->nlp_type & NLP_FABRIC) 2353 lpfc_disc_state_machine(vport, ndlp, NULL, 2354 NLP_EVT_DEVICE_RECOVERY); 2355 2356 lpfc_disc_state_machine(vport, ndlp, NULL, 2357 NLP_EVT_DEVICE_RM); 2358 } 2359 2360 /* At this point, ALL ndlp's should be gone 2361 * because of the previous NLP_EVT_DEVICE_RM. 2362 * Lets wait for this to happen, if needed. 2363 */ 2364 while (!list_empty(&vport->fc_nodes)) { 2365 if (i++ > 3000) { 2366 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2367 "0233 Nodelist not empty\n"); 2368 list_for_each_entry_safe(ndlp, next_ndlp, 2369 &vport->fc_nodes, nlp_listp) { 2370 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2371 LOG_NODE, 2372 "0282 did:x%x ndlp:x%p " 2373 "usgmap:x%x refcnt:%d\n", 2374 ndlp->nlp_DID, (void *)ndlp, 2375 ndlp->nlp_usg_map, 2376 atomic_read( 2377 &ndlp->kref.refcount)); 2378 } 2379 break; 2380 } 2381 2382 /* Wait for any activity on ndlps to settle */ 2383 msleep(10); 2384 } 2385 lpfc_cleanup_vports_rrqs(vport, NULL); 2386 } 2387 2388 /** 2389 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2390 * @vport: pointer to a virtual N_Port data structure. 2391 * 2392 * This routine stops all the timers associated with a @vport. This function 2393 * is invoked before disabling or deleting a @vport. Note that the physical 2394 * port is treated as @vport 0. 2395 **/ 2396 void 2397 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2398 { 2399 del_timer_sync(&vport->els_tmofunc); 2400 del_timer_sync(&vport->fc_fdmitmo); 2401 del_timer_sync(&vport->delayed_disc_tmo); 2402 lpfc_can_disctmo(vport); 2403 return; 2404 } 2405 2406 /** 2407 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2408 * @phba: pointer to lpfc hba data structure. 2409 * 2410 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2411 * caller of this routine should already hold the host lock. 2412 **/ 2413 void 2414 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2415 { 2416 /* Clear pending FCF rediscovery wait flag */ 2417 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2418 2419 /* Now, try to stop the timer */ 2420 del_timer(&phba->fcf.redisc_wait); 2421 } 2422 2423 /** 2424 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2425 * @phba: pointer to lpfc hba data structure. 2426 * 2427 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2428 * checks whether the FCF rediscovery wait timer is pending with the host 2429 * lock held before proceeding with disabling the timer and clearing the 2430 * wait timer pendig flag. 2431 **/ 2432 void 2433 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2434 { 2435 spin_lock_irq(&phba->hbalock); 2436 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2437 /* FCF rediscovery timer already fired or stopped */ 2438 spin_unlock_irq(&phba->hbalock); 2439 return; 2440 } 2441 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2442 /* Clear failover in progress flags */ 2443 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2444 spin_unlock_irq(&phba->hbalock); 2445 } 2446 2447 /** 2448 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2449 * @phba: pointer to lpfc hba data structure. 2450 * 2451 * This routine stops all the timers associated with a HBA. This function is 2452 * invoked before either putting a HBA offline or unloading the driver. 2453 **/ 2454 void 2455 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2456 { 2457 lpfc_stop_vport_timers(phba->pport); 2458 del_timer_sync(&phba->sli.mbox_tmo); 2459 del_timer_sync(&phba->fabric_block_timer); 2460 del_timer_sync(&phba->eratt_poll); 2461 del_timer_sync(&phba->hb_tmofunc); 2462 if (phba->sli_rev == LPFC_SLI_REV4) { 2463 del_timer_sync(&phba->rrq_tmr); 2464 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2465 } 2466 phba->hb_outstanding = 0; 2467 2468 switch (phba->pci_dev_grp) { 2469 case LPFC_PCI_DEV_LP: 2470 /* Stop any LightPulse device specific driver timers */ 2471 del_timer_sync(&phba->fcp_poll_timer); 2472 break; 2473 case LPFC_PCI_DEV_OC: 2474 /* Stop any OneConnect device sepcific driver timers */ 2475 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2476 break; 2477 default: 2478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2479 "0297 Invalid device group (x%x)\n", 2480 phba->pci_dev_grp); 2481 break; 2482 } 2483 return; 2484 } 2485 2486 /** 2487 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2488 * @phba: pointer to lpfc hba data structure. 2489 * 2490 * This routine marks a HBA's management interface as blocked. Once the HBA's 2491 * management interface is marked as blocked, all the user space access to 2492 * the HBA, whether they are from sysfs interface or libdfc interface will 2493 * all be blocked. The HBA is set to block the management interface when the 2494 * driver prepares the HBA interface for online or offline. 2495 **/ 2496 static void 2497 lpfc_block_mgmt_io(struct lpfc_hba * phba) 2498 { 2499 unsigned long iflag; 2500 uint8_t actcmd = MBX_HEARTBEAT; 2501 unsigned long timeout; 2502 2503 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2504 spin_lock_irqsave(&phba->hbalock, iflag); 2505 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2506 if (phba->sli.mbox_active) { 2507 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2508 /* Determine how long we might wait for the active mailbox 2509 * command to be gracefully completed by firmware. 2510 */ 2511 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2512 phba->sli.mbox_active) * 1000) + jiffies; 2513 } 2514 spin_unlock_irqrestore(&phba->hbalock, iflag); 2515 2516 /* Wait for the outstnading mailbox command to complete */ 2517 while (phba->sli.mbox_active) { 2518 /* Check active mailbox complete status every 2ms */ 2519 msleep(2); 2520 if (time_after(jiffies, timeout)) { 2521 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2522 "2813 Mgmt IO is Blocked %x " 2523 "- mbox cmd %x still active\n", 2524 phba->sli.sli_flag, actcmd); 2525 break; 2526 } 2527 } 2528 } 2529 2530 /** 2531 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 2532 * @phba: pointer to lpfc hba data structure. 2533 * 2534 * Allocate RPIs for all active remote nodes. This is needed whenever 2535 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 2536 * is to fixup the temporary rpi assignments. 2537 **/ 2538 void 2539 lpfc_sli4_node_prep(struct lpfc_hba *phba) 2540 { 2541 struct lpfc_nodelist *ndlp, *next_ndlp; 2542 struct lpfc_vport **vports; 2543 int i; 2544 2545 if (phba->sli_rev != LPFC_SLI_REV4) 2546 return; 2547 2548 vports = lpfc_create_vport_work_array(phba); 2549 if (vports != NULL) { 2550 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2551 if (vports[i]->load_flag & FC_UNLOADING) 2552 continue; 2553 2554 list_for_each_entry_safe(ndlp, next_ndlp, 2555 &vports[i]->fc_nodes, 2556 nlp_listp) { 2557 if (NLP_CHK_NODE_ACT(ndlp)) 2558 ndlp->nlp_rpi = 2559 lpfc_sli4_alloc_rpi(phba); 2560 } 2561 } 2562 } 2563 lpfc_destroy_vport_work_array(phba, vports); 2564 } 2565 2566 /** 2567 * lpfc_online - Initialize and bring a HBA online 2568 * @phba: pointer to lpfc hba data structure. 2569 * 2570 * This routine initializes the HBA and brings a HBA online. During this 2571 * process, the management interface is blocked to prevent user space access 2572 * to the HBA interfering with the driver initialization. 2573 * 2574 * Return codes 2575 * 0 - successful 2576 * 1 - failed 2577 **/ 2578 int 2579 lpfc_online(struct lpfc_hba *phba) 2580 { 2581 struct lpfc_vport *vport; 2582 struct lpfc_vport **vports; 2583 int i; 2584 2585 if (!phba) 2586 return 0; 2587 vport = phba->pport; 2588 2589 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2590 return 0; 2591 2592 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2593 "0458 Bring Adapter online\n"); 2594 2595 lpfc_block_mgmt_io(phba); 2596 2597 if (!lpfc_sli_queue_setup(phba)) { 2598 lpfc_unblock_mgmt_io(phba); 2599 return 1; 2600 } 2601 2602 if (phba->sli_rev == LPFC_SLI_REV4) { 2603 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2604 lpfc_unblock_mgmt_io(phba); 2605 return 1; 2606 } 2607 } else { 2608 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2609 lpfc_unblock_mgmt_io(phba); 2610 return 1; 2611 } 2612 } 2613 2614 vports = lpfc_create_vport_work_array(phba); 2615 if (vports != NULL) 2616 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2617 struct Scsi_Host *shost; 2618 shost = lpfc_shost_from_vport(vports[i]); 2619 spin_lock_irq(shost->host_lock); 2620 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2621 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2622 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2623 if (phba->sli_rev == LPFC_SLI_REV4) 2624 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2625 spin_unlock_irq(shost->host_lock); 2626 } 2627 lpfc_destroy_vport_work_array(phba, vports); 2628 2629 lpfc_unblock_mgmt_io(phba); 2630 return 0; 2631 } 2632 2633 /** 2634 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2635 * @phba: pointer to lpfc hba data structure. 2636 * 2637 * This routine marks a HBA's management interface as not blocked. Once the 2638 * HBA's management interface is marked as not blocked, all the user space 2639 * access to the HBA, whether they are from sysfs interface or libdfc 2640 * interface will be allowed. The HBA is set to block the management interface 2641 * when the driver prepares the HBA interface for online or offline and then 2642 * set to unblock the management interface afterwards. 2643 **/ 2644 void 2645 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2646 { 2647 unsigned long iflag; 2648 2649 spin_lock_irqsave(&phba->hbalock, iflag); 2650 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2651 spin_unlock_irqrestore(&phba->hbalock, iflag); 2652 } 2653 2654 /** 2655 * lpfc_offline_prep - Prepare a HBA to be brought offline 2656 * @phba: pointer to lpfc hba data structure. 2657 * 2658 * This routine is invoked to prepare a HBA to be brought offline. It performs 2659 * unregistration login to all the nodes on all vports and flushes the mailbox 2660 * queue to make it ready to be brought offline. 2661 **/ 2662 void 2663 lpfc_offline_prep(struct lpfc_hba * phba) 2664 { 2665 struct lpfc_vport *vport = phba->pport; 2666 struct lpfc_nodelist *ndlp, *next_ndlp; 2667 struct lpfc_vport **vports; 2668 struct Scsi_Host *shost; 2669 int i; 2670 2671 if (vport->fc_flag & FC_OFFLINE_MODE) 2672 return; 2673 2674 lpfc_block_mgmt_io(phba); 2675 2676 lpfc_linkdown(phba); 2677 2678 /* Issue an unreg_login to all nodes on all vports */ 2679 vports = lpfc_create_vport_work_array(phba); 2680 if (vports != NULL) { 2681 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2682 if (vports[i]->load_flag & FC_UNLOADING) 2683 continue; 2684 shost = lpfc_shost_from_vport(vports[i]); 2685 spin_lock_irq(shost->host_lock); 2686 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2687 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2688 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2689 spin_unlock_irq(shost->host_lock); 2690 2691 shost = lpfc_shost_from_vport(vports[i]); 2692 list_for_each_entry_safe(ndlp, next_ndlp, 2693 &vports[i]->fc_nodes, 2694 nlp_listp) { 2695 if (!NLP_CHK_NODE_ACT(ndlp)) 2696 continue; 2697 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2698 continue; 2699 if (ndlp->nlp_type & NLP_FABRIC) { 2700 lpfc_disc_state_machine(vports[i], ndlp, 2701 NULL, NLP_EVT_DEVICE_RECOVERY); 2702 lpfc_disc_state_machine(vports[i], ndlp, 2703 NULL, NLP_EVT_DEVICE_RM); 2704 } 2705 spin_lock_irq(shost->host_lock); 2706 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2707 spin_unlock_irq(shost->host_lock); 2708 /* 2709 * Whenever an SLI4 port goes offline, free the 2710 * RPI. Get a new RPI when the adapter port 2711 * comes back online. 2712 */ 2713 if (phba->sli_rev == LPFC_SLI_REV4) 2714 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 2715 lpfc_unreg_rpi(vports[i], ndlp); 2716 } 2717 } 2718 } 2719 lpfc_destroy_vport_work_array(phba, vports); 2720 2721 lpfc_sli_mbox_sys_shutdown(phba); 2722 } 2723 2724 /** 2725 * lpfc_offline - Bring a HBA offline 2726 * @phba: pointer to lpfc hba data structure. 2727 * 2728 * This routine actually brings a HBA offline. It stops all the timers 2729 * associated with the HBA, brings down the SLI layer, and eventually 2730 * marks the HBA as in offline state for the upper layer protocol. 2731 **/ 2732 void 2733 lpfc_offline(struct lpfc_hba *phba) 2734 { 2735 struct Scsi_Host *shost; 2736 struct lpfc_vport **vports; 2737 int i; 2738 2739 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2740 return; 2741 2742 /* stop port and all timers associated with this hba */ 2743 lpfc_stop_port(phba); 2744 vports = lpfc_create_vport_work_array(phba); 2745 if (vports != NULL) 2746 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2747 lpfc_stop_vport_timers(vports[i]); 2748 lpfc_destroy_vport_work_array(phba, vports); 2749 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2750 "0460 Bring Adapter offline\n"); 2751 /* Bring down the SLI Layer and cleanup. The HBA is offline 2752 now. */ 2753 lpfc_sli_hba_down(phba); 2754 spin_lock_irq(&phba->hbalock); 2755 phba->work_ha = 0; 2756 spin_unlock_irq(&phba->hbalock); 2757 vports = lpfc_create_vport_work_array(phba); 2758 if (vports != NULL) 2759 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2760 shost = lpfc_shost_from_vport(vports[i]); 2761 spin_lock_irq(shost->host_lock); 2762 vports[i]->work_port_events = 0; 2763 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2764 spin_unlock_irq(shost->host_lock); 2765 } 2766 lpfc_destroy_vport_work_array(phba, vports); 2767 } 2768 2769 /** 2770 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2771 * @phba: pointer to lpfc hba data structure. 2772 * 2773 * This routine is to free all the SCSI buffers and IOCBs from the driver 2774 * list back to kernel. It is called from lpfc_pci_remove_one to free 2775 * the internal resources before the device is removed from the system. 2776 **/ 2777 static void 2778 lpfc_scsi_free(struct lpfc_hba *phba) 2779 { 2780 struct lpfc_scsi_buf *sb, *sb_next; 2781 struct lpfc_iocbq *io, *io_next; 2782 2783 spin_lock_irq(&phba->hbalock); 2784 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2785 spin_lock(&phba->scsi_buf_list_lock); 2786 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2787 list_del(&sb->list); 2788 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2789 sb->dma_handle); 2790 kfree(sb); 2791 phba->total_scsi_bufs--; 2792 } 2793 spin_unlock(&phba->scsi_buf_list_lock); 2794 2795 /* Release all the lpfc_iocbq entries maintained by this host. */ 2796 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2797 list_del(&io->list); 2798 kfree(io); 2799 phba->total_iocbq_bufs--; 2800 } 2801 2802 spin_unlock_irq(&phba->hbalock); 2803 } 2804 2805 /** 2806 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping 2807 * @phba: pointer to lpfc hba data structure. 2808 * 2809 * This routine first calculates the sizes of the current els and allocated 2810 * scsi sgl lists, and then goes through all sgls to updates the physical 2811 * XRIs assigned due to port function reset. During port initialization, the 2812 * current els and allocated scsi sgl lists are 0s. 2813 * 2814 * Return codes 2815 * 0 - successful (for now, it always returns 0) 2816 **/ 2817 int 2818 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba) 2819 { 2820 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 2821 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL; 2822 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt; 2823 LIST_HEAD(els_sgl_list); 2824 LIST_HEAD(scsi_sgl_list); 2825 int rc; 2826 2827 /* 2828 * update on pci function's els xri-sgl list 2829 */ 2830 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 2831 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 2832 /* els xri-sgl expanded */ 2833 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 2834 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2835 "3157 ELS xri-sgl count increased from " 2836 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 2837 els_xri_cnt); 2838 /* allocate the additional els sgls */ 2839 for (i = 0; i < xri_cnt; i++) { 2840 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 2841 GFP_KERNEL); 2842 if (sglq_entry == NULL) { 2843 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2844 "2562 Failure to allocate an " 2845 "ELS sgl entry:%d\n", i); 2846 rc = -ENOMEM; 2847 goto out_free_mem; 2848 } 2849 sglq_entry->buff_type = GEN_BUFF_TYPE; 2850 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 2851 &sglq_entry->phys); 2852 if (sglq_entry->virt == NULL) { 2853 kfree(sglq_entry); 2854 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2855 "2563 Failure to allocate an " 2856 "ELS mbuf:%d\n", i); 2857 rc = -ENOMEM; 2858 goto out_free_mem; 2859 } 2860 sglq_entry->sgl = sglq_entry->virt; 2861 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 2862 sglq_entry->state = SGL_FREED; 2863 list_add_tail(&sglq_entry->list, &els_sgl_list); 2864 } 2865 spin_lock(&phba->hbalock); 2866 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 2867 spin_unlock(&phba->hbalock); 2868 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 2869 /* els xri-sgl shrinked */ 2870 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 2871 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2872 "3158 ELS xri-sgl count decreased from " 2873 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 2874 els_xri_cnt); 2875 spin_lock_irq(&phba->hbalock); 2876 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list); 2877 spin_unlock_irq(&phba->hbalock); 2878 /* release extra els sgls from list */ 2879 for (i = 0; i < xri_cnt; i++) { 2880 list_remove_head(&els_sgl_list, 2881 sglq_entry, struct lpfc_sglq, list); 2882 if (sglq_entry) { 2883 lpfc_mbuf_free(phba, sglq_entry->virt, 2884 sglq_entry->phys); 2885 kfree(sglq_entry); 2886 } 2887 } 2888 spin_lock_irq(&phba->hbalock); 2889 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 2890 spin_unlock_irq(&phba->hbalock); 2891 } else 2892 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2893 "3163 ELS xri-sgl count unchanged: %d\n", 2894 els_xri_cnt); 2895 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 2896 2897 /* update xris to els sgls on the list */ 2898 sglq_entry = NULL; 2899 sglq_entry_next = NULL; 2900 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 2901 &phba->sli4_hba.lpfc_sgl_list, list) { 2902 lxri = lpfc_sli4_next_xritag(phba); 2903 if (lxri == NO_XRI) { 2904 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2905 "2400 Failed to allocate xri for " 2906 "ELS sgl\n"); 2907 rc = -ENOMEM; 2908 goto out_free_mem; 2909 } 2910 sglq_entry->sli4_lxritag = lxri; 2911 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 2912 } 2913 2914 /* 2915 * update on pci function's allocated scsi xri-sgl list 2916 */ 2917 phba->total_scsi_bufs = 0; 2918 2919 /* maximum number of xris available for scsi buffers */ 2920 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - 2921 els_xri_cnt; 2922 2923 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2924 "2401 Current allocated SCSI xri-sgl count:%d, " 2925 "maximum SCSI xri count:%d\n", 2926 phba->sli4_hba.scsi_xri_cnt, 2927 phba->sli4_hba.scsi_xri_max); 2928 2929 spin_lock_irq(&phba->scsi_buf_list_lock); 2930 list_splice_init(&phba->lpfc_scsi_buf_list, &scsi_sgl_list); 2931 spin_unlock_irq(&phba->scsi_buf_list_lock); 2932 2933 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { 2934 /* max scsi xri shrinked below the allocated scsi buffers */ 2935 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - 2936 phba->sli4_hba.scsi_xri_max; 2937 /* release the extra allocated scsi buffers */ 2938 for (i = 0; i < scsi_xri_cnt; i++) { 2939 list_remove_head(&scsi_sgl_list, psb, 2940 struct lpfc_scsi_buf, list); 2941 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data, 2942 psb->dma_handle); 2943 kfree(psb); 2944 } 2945 spin_lock_irq(&phba->scsi_buf_list_lock); 2946 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; 2947 spin_unlock_irq(&phba->scsi_buf_list_lock); 2948 } 2949 2950 /* update xris associated to remaining allocated scsi buffers */ 2951 psb = NULL; 2952 psb_next = NULL; 2953 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { 2954 lxri = lpfc_sli4_next_xritag(phba); 2955 if (lxri == NO_XRI) { 2956 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2957 "2560 Failed to allocate xri for " 2958 "scsi buffer\n"); 2959 rc = -ENOMEM; 2960 goto out_free_mem; 2961 } 2962 psb->cur_iocbq.sli4_lxritag = lxri; 2963 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 2964 } 2965 spin_lock(&phba->scsi_buf_list_lock); 2966 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list); 2967 spin_unlock(&phba->scsi_buf_list_lock); 2968 2969 return 0; 2970 2971 out_free_mem: 2972 lpfc_free_els_sgl_list(phba); 2973 lpfc_scsi_free(phba); 2974 return rc; 2975 } 2976 2977 /** 2978 * lpfc_create_port - Create an FC port 2979 * @phba: pointer to lpfc hba data structure. 2980 * @instance: a unique integer ID to this FC port. 2981 * @dev: pointer to the device data structure. 2982 * 2983 * This routine creates a FC port for the upper layer protocol. The FC port 2984 * can be created on top of either a physical port or a virtual port provided 2985 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2986 * and associates the FC port created before adding the shost into the SCSI 2987 * layer. 2988 * 2989 * Return codes 2990 * @vport - pointer to the virtual N_Port data structure. 2991 * NULL - port create failed. 2992 **/ 2993 struct lpfc_vport * 2994 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2995 { 2996 struct lpfc_vport *vport; 2997 struct Scsi_Host *shost; 2998 int error = 0; 2999 3000 if (dev != &phba->pcidev->dev) 3001 shost = scsi_host_alloc(&lpfc_vport_template, 3002 sizeof(struct lpfc_vport)); 3003 else 3004 shost = scsi_host_alloc(&lpfc_template, 3005 sizeof(struct lpfc_vport)); 3006 if (!shost) 3007 goto out; 3008 3009 vport = (struct lpfc_vport *) shost->hostdata; 3010 vport->phba = phba; 3011 vport->load_flag |= FC_LOADING; 3012 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3013 vport->fc_rscn_flush = 0; 3014 3015 lpfc_get_vport_cfgparam(vport); 3016 shost->unique_id = instance; 3017 shost->max_id = LPFC_MAX_TARGET; 3018 shost->max_lun = vport->cfg_max_luns; 3019 shost->this_id = -1; 3020 shost->max_cmd_len = 16; 3021 if (phba->sli_rev == LPFC_SLI_REV4) { 3022 shost->dma_boundary = 3023 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3024 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 3025 } 3026 3027 /* 3028 * Set initial can_queue value since 0 is no longer supported and 3029 * scsi_add_host will fail. This will be adjusted later based on the 3030 * max xri value determined in hba setup. 3031 */ 3032 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3033 if (dev != &phba->pcidev->dev) { 3034 shost->transportt = lpfc_vport_transport_template; 3035 vport->port_type = LPFC_NPIV_PORT; 3036 } else { 3037 shost->transportt = lpfc_transport_template; 3038 vport->port_type = LPFC_PHYSICAL_PORT; 3039 } 3040 3041 /* Initialize all internally managed lists. */ 3042 INIT_LIST_HEAD(&vport->fc_nodes); 3043 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3044 spin_lock_init(&vport->work_port_lock); 3045 3046 init_timer(&vport->fc_disctmo); 3047 vport->fc_disctmo.function = lpfc_disc_timeout; 3048 vport->fc_disctmo.data = (unsigned long)vport; 3049 3050 init_timer(&vport->fc_fdmitmo); 3051 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 3052 vport->fc_fdmitmo.data = (unsigned long)vport; 3053 3054 init_timer(&vport->els_tmofunc); 3055 vport->els_tmofunc.function = lpfc_els_timeout; 3056 vport->els_tmofunc.data = (unsigned long)vport; 3057 3058 init_timer(&vport->delayed_disc_tmo); 3059 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; 3060 vport->delayed_disc_tmo.data = (unsigned long)vport; 3061 3062 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3063 if (error) 3064 goto out_put_shost; 3065 3066 spin_lock_irq(&phba->hbalock); 3067 list_add_tail(&vport->listentry, &phba->port_list); 3068 spin_unlock_irq(&phba->hbalock); 3069 return vport; 3070 3071 out_put_shost: 3072 scsi_host_put(shost); 3073 out: 3074 return NULL; 3075 } 3076 3077 /** 3078 * destroy_port - destroy an FC port 3079 * @vport: pointer to an lpfc virtual N_Port data structure. 3080 * 3081 * This routine destroys a FC port from the upper layer protocol. All the 3082 * resources associated with the port are released. 3083 **/ 3084 void 3085 destroy_port(struct lpfc_vport *vport) 3086 { 3087 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3088 struct lpfc_hba *phba = vport->phba; 3089 3090 lpfc_debugfs_terminate(vport); 3091 fc_remove_host(shost); 3092 scsi_remove_host(shost); 3093 3094 spin_lock_irq(&phba->hbalock); 3095 list_del_init(&vport->listentry); 3096 spin_unlock_irq(&phba->hbalock); 3097 3098 lpfc_cleanup(vport); 3099 return; 3100 } 3101 3102 /** 3103 * lpfc_get_instance - Get a unique integer ID 3104 * 3105 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 3106 * uses the kernel idr facility to perform the task. 3107 * 3108 * Return codes: 3109 * instance - a unique integer ID allocated as the new instance. 3110 * -1 - lpfc get instance failed. 3111 **/ 3112 int 3113 lpfc_get_instance(void) 3114 { 3115 int instance = 0; 3116 3117 /* Assign an unused number */ 3118 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 3119 return -1; 3120 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 3121 return -1; 3122 return instance; 3123 } 3124 3125 /** 3126 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 3127 * @shost: pointer to SCSI host data structure. 3128 * @time: elapsed time of the scan in jiffies. 3129 * 3130 * This routine is called by the SCSI layer with a SCSI host to determine 3131 * whether the scan host is finished. 3132 * 3133 * Note: there is no scan_start function as adapter initialization will have 3134 * asynchronously kicked off the link initialization. 3135 * 3136 * Return codes 3137 * 0 - SCSI host scan is not over yet. 3138 * 1 - SCSI host scan is over. 3139 **/ 3140 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 3141 { 3142 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3143 struct lpfc_hba *phba = vport->phba; 3144 int stat = 0; 3145 3146 spin_lock_irq(shost->host_lock); 3147 3148 if (vport->load_flag & FC_UNLOADING) { 3149 stat = 1; 3150 goto finished; 3151 } 3152 if (time >= 30 * HZ) { 3153 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3154 "0461 Scanning longer than 30 " 3155 "seconds. Continuing initialization\n"); 3156 stat = 1; 3157 goto finished; 3158 } 3159 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 3160 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3161 "0465 Link down longer than 15 " 3162 "seconds. Continuing initialization\n"); 3163 stat = 1; 3164 goto finished; 3165 } 3166 3167 if (vport->port_state != LPFC_VPORT_READY) 3168 goto finished; 3169 if (vport->num_disc_nodes || vport->fc_prli_sent) 3170 goto finished; 3171 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 3172 goto finished; 3173 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 3174 goto finished; 3175 3176 stat = 1; 3177 3178 finished: 3179 spin_unlock_irq(shost->host_lock); 3180 return stat; 3181 } 3182 3183 /** 3184 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 3185 * @shost: pointer to SCSI host data structure. 3186 * 3187 * This routine initializes a given SCSI host attributes on a FC port. The 3188 * SCSI host can be either on top of a physical port or a virtual port. 3189 **/ 3190 void lpfc_host_attrib_init(struct Scsi_Host *shost) 3191 { 3192 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3193 struct lpfc_hba *phba = vport->phba; 3194 /* 3195 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 3196 */ 3197 3198 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 3199 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3200 fc_host_supported_classes(shost) = FC_COS_CLASS3; 3201 3202 memset(fc_host_supported_fc4s(shost), 0, 3203 sizeof(fc_host_supported_fc4s(shost))); 3204 fc_host_supported_fc4s(shost)[2] = 1; 3205 fc_host_supported_fc4s(shost)[7] = 1; 3206 3207 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 3208 sizeof fc_host_symbolic_name(shost)); 3209 3210 fc_host_supported_speeds(shost) = 0; 3211 if (phba->lmt & LMT_16Gb) 3212 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 3213 if (phba->lmt & LMT_10Gb) 3214 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 3215 if (phba->lmt & LMT_8Gb) 3216 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 3217 if (phba->lmt & LMT_4Gb) 3218 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 3219 if (phba->lmt & LMT_2Gb) 3220 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 3221 if (phba->lmt & LMT_1Gb) 3222 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 3223 3224 fc_host_maxframe_size(shost) = 3225 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 3226 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 3227 3228 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 3229 3230 /* This value is also unchanging */ 3231 memset(fc_host_active_fc4s(shost), 0, 3232 sizeof(fc_host_active_fc4s(shost))); 3233 fc_host_active_fc4s(shost)[2] = 1; 3234 fc_host_active_fc4s(shost)[7] = 1; 3235 3236 fc_host_max_npiv_vports(shost) = phba->max_vpi; 3237 spin_lock_irq(shost->host_lock); 3238 vport->load_flag &= ~FC_LOADING; 3239 spin_unlock_irq(shost->host_lock); 3240 } 3241 3242 /** 3243 * lpfc_stop_port_s3 - Stop SLI3 device port 3244 * @phba: pointer to lpfc hba data structure. 3245 * 3246 * This routine is invoked to stop an SLI3 device port, it stops the device 3247 * from generating interrupts and stops the device driver's timers for the 3248 * device. 3249 **/ 3250 static void 3251 lpfc_stop_port_s3(struct lpfc_hba *phba) 3252 { 3253 /* Clear all interrupt enable conditions */ 3254 writel(0, phba->HCregaddr); 3255 readl(phba->HCregaddr); /* flush */ 3256 /* Clear all pending interrupts */ 3257 writel(0xffffffff, phba->HAregaddr); 3258 readl(phba->HAregaddr); /* flush */ 3259 3260 /* Reset some HBA SLI setup states */ 3261 lpfc_stop_hba_timers(phba); 3262 phba->pport->work_port_events = 0; 3263 } 3264 3265 /** 3266 * lpfc_stop_port_s4 - Stop SLI4 device port 3267 * @phba: pointer to lpfc hba data structure. 3268 * 3269 * This routine is invoked to stop an SLI4 device port, it stops the device 3270 * from generating interrupts and stops the device driver's timers for the 3271 * device. 3272 **/ 3273 static void 3274 lpfc_stop_port_s4(struct lpfc_hba *phba) 3275 { 3276 /* Reset some HBA SLI4 setup states */ 3277 lpfc_stop_hba_timers(phba); 3278 phba->pport->work_port_events = 0; 3279 phba->sli4_hba.intr_enable = 0; 3280 } 3281 3282 /** 3283 * lpfc_stop_port - Wrapper function for stopping hba port 3284 * @phba: Pointer to HBA context object. 3285 * 3286 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 3287 * the API jump table function pointer from the lpfc_hba struct. 3288 **/ 3289 void 3290 lpfc_stop_port(struct lpfc_hba *phba) 3291 { 3292 phba->lpfc_stop_port(phba); 3293 } 3294 3295 /** 3296 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 3297 * @phba: Pointer to hba for which this call is being executed. 3298 * 3299 * This routine starts the timer waiting for the FCF rediscovery to complete. 3300 **/ 3301 void 3302 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 3303 { 3304 unsigned long fcf_redisc_wait_tmo = 3305 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 3306 /* Start fcf rediscovery wait period timer */ 3307 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 3308 spin_lock_irq(&phba->hbalock); 3309 /* Allow action to new fcf asynchronous event */ 3310 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 3311 /* Mark the FCF rediscovery pending state */ 3312 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 3313 spin_unlock_irq(&phba->hbalock); 3314 } 3315 3316 /** 3317 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 3318 * @ptr: Map to lpfc_hba data structure pointer. 3319 * 3320 * This routine is invoked when waiting for FCF table rediscover has been 3321 * timed out. If new FCF record(s) has (have) been discovered during the 3322 * wait period, a new FCF event shall be added to the FCOE async event 3323 * list, and then worker thread shall be waked up for processing from the 3324 * worker thread context. 3325 **/ 3326 void 3327 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 3328 { 3329 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 3330 3331 /* Don't send FCF rediscovery event if timer cancelled */ 3332 spin_lock_irq(&phba->hbalock); 3333 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 3334 spin_unlock_irq(&phba->hbalock); 3335 return; 3336 } 3337 /* Clear FCF rediscovery timer pending flag */ 3338 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 3339 /* FCF rediscovery event to worker thread */ 3340 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 3341 spin_unlock_irq(&phba->hbalock); 3342 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3343 "2776 FCF rediscover quiescent timer expired\n"); 3344 /* wake up worker thread */ 3345 lpfc_worker_wake_up(phba); 3346 } 3347 3348 /** 3349 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3350 * @phba: pointer to lpfc hba data structure. 3351 * @acqe_link: pointer to the async link completion queue entry. 3352 * 3353 * This routine is to parse the SLI4 link-attention link fault code and 3354 * translate it into the base driver's read link attention mailbox command 3355 * status. 3356 * 3357 * Return: Link-attention status in terms of base driver's coding. 3358 **/ 3359 static uint16_t 3360 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3361 struct lpfc_acqe_link *acqe_link) 3362 { 3363 uint16_t latt_fault; 3364 3365 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3366 case LPFC_ASYNC_LINK_FAULT_NONE: 3367 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3368 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3369 latt_fault = 0; 3370 break; 3371 default: 3372 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3373 "0398 Invalid link fault code: x%x\n", 3374 bf_get(lpfc_acqe_link_fault, acqe_link)); 3375 latt_fault = MBXERR_ERROR; 3376 break; 3377 } 3378 return latt_fault; 3379 } 3380 3381 /** 3382 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3383 * @phba: pointer to lpfc hba data structure. 3384 * @acqe_link: pointer to the async link completion queue entry. 3385 * 3386 * This routine is to parse the SLI4 link attention type and translate it 3387 * into the base driver's link attention type coding. 3388 * 3389 * Return: Link attention type in terms of base driver's coding. 3390 **/ 3391 static uint8_t 3392 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3393 struct lpfc_acqe_link *acqe_link) 3394 { 3395 uint8_t att_type; 3396 3397 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3398 case LPFC_ASYNC_LINK_STATUS_DOWN: 3399 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3400 att_type = LPFC_ATT_LINK_DOWN; 3401 break; 3402 case LPFC_ASYNC_LINK_STATUS_UP: 3403 /* Ignore physical link up events - wait for logical link up */ 3404 att_type = LPFC_ATT_RESERVED; 3405 break; 3406 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3407 att_type = LPFC_ATT_LINK_UP; 3408 break; 3409 default: 3410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3411 "0399 Invalid link attention type: x%x\n", 3412 bf_get(lpfc_acqe_link_status, acqe_link)); 3413 att_type = LPFC_ATT_RESERVED; 3414 break; 3415 } 3416 return att_type; 3417 } 3418 3419 /** 3420 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3421 * @phba: pointer to lpfc hba data structure. 3422 * @acqe_link: pointer to the async link completion queue entry. 3423 * 3424 * This routine is to parse the SLI4 link-attention link speed and translate 3425 * it into the base driver's link-attention link speed coding. 3426 * 3427 * Return: Link-attention link speed in terms of base driver's coding. 3428 **/ 3429 static uint8_t 3430 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3431 struct lpfc_acqe_link *acqe_link) 3432 { 3433 uint8_t link_speed; 3434 3435 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3436 case LPFC_ASYNC_LINK_SPEED_ZERO: 3437 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3438 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3439 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3440 break; 3441 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3442 link_speed = LPFC_LINK_SPEED_1GHZ; 3443 break; 3444 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3445 link_speed = LPFC_LINK_SPEED_10GHZ; 3446 break; 3447 default: 3448 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3449 "0483 Invalid link-attention link speed: x%x\n", 3450 bf_get(lpfc_acqe_link_speed, acqe_link)); 3451 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3452 break; 3453 } 3454 return link_speed; 3455 } 3456 3457 /** 3458 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 3459 * @phba: pointer to lpfc hba data structure. 3460 * @acqe_link: pointer to the async link completion queue entry. 3461 * 3462 * This routine is to handle the SLI4 asynchronous FCoE link event. 3463 **/ 3464 static void 3465 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3466 struct lpfc_acqe_link *acqe_link) 3467 { 3468 struct lpfc_dmabuf *mp; 3469 LPFC_MBOXQ_t *pmb; 3470 MAILBOX_t *mb; 3471 struct lpfc_mbx_read_top *la; 3472 uint8_t att_type; 3473 int rc; 3474 3475 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3476 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 3477 return; 3478 phba->fcoe_eventtag = acqe_link->event_tag; 3479 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3480 if (!pmb) { 3481 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3482 "0395 The mboxq allocation failed\n"); 3483 return; 3484 } 3485 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3486 if (!mp) { 3487 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3488 "0396 The lpfc_dmabuf allocation failed\n"); 3489 goto out_free_pmb; 3490 } 3491 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3492 if (!mp->virt) { 3493 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3494 "0397 The mbuf allocation failed\n"); 3495 goto out_free_dmabuf; 3496 } 3497 3498 /* Cleanup any outstanding ELS commands */ 3499 lpfc_els_flush_all_cmd(phba); 3500 3501 /* Block ELS IOCBs until we have done process link event */ 3502 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3503 3504 /* Update link event statistics */ 3505 phba->sli.slistat.link_event++; 3506 3507 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3508 lpfc_read_topology(phba, pmb, mp); 3509 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3510 pmb->vport = phba->pport; 3511 3512 /* Keep the link status for extra SLI4 state machine reference */ 3513 phba->sli4_hba.link_state.speed = 3514 bf_get(lpfc_acqe_link_speed, acqe_link); 3515 phba->sli4_hba.link_state.duplex = 3516 bf_get(lpfc_acqe_link_duplex, acqe_link); 3517 phba->sli4_hba.link_state.status = 3518 bf_get(lpfc_acqe_link_status, acqe_link); 3519 phba->sli4_hba.link_state.type = 3520 bf_get(lpfc_acqe_link_type, acqe_link); 3521 phba->sli4_hba.link_state.number = 3522 bf_get(lpfc_acqe_link_number, acqe_link); 3523 phba->sli4_hba.link_state.fault = 3524 bf_get(lpfc_acqe_link_fault, acqe_link); 3525 phba->sli4_hba.link_state.logical_speed = 3526 bf_get(lpfc_acqe_logical_link_speed, acqe_link); 3527 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3528 "2900 Async FC/FCoE Link event - Speed:%dGBit " 3529 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 3530 "Logical speed:%dMbps Fault:%d\n", 3531 phba->sli4_hba.link_state.speed, 3532 phba->sli4_hba.link_state.topology, 3533 phba->sli4_hba.link_state.status, 3534 phba->sli4_hba.link_state.type, 3535 phba->sli4_hba.link_state.number, 3536 phba->sli4_hba.link_state.logical_speed * 10, 3537 phba->sli4_hba.link_state.fault); 3538 /* 3539 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 3540 * topology info. Note: Optional for non FC-AL ports. 3541 */ 3542 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3543 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3544 if (rc == MBX_NOT_FINISHED) 3545 goto out_free_dmabuf; 3546 return; 3547 } 3548 /* 3549 * For FCoE Mode: fill in all the topology information we need and call 3550 * the READ_TOPOLOGY completion routine to continue without actually 3551 * sending the READ_TOPOLOGY mailbox command to the port. 3552 */ 3553 /* Parse and translate status field */ 3554 mb = &pmb->u.mb; 3555 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3556 3557 /* Parse and translate link attention fields */ 3558 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3559 la->eventTag = acqe_link->event_tag; 3560 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 3561 bf_set(lpfc_mbx_read_top_link_spd, la, 3562 lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); 3563 3564 /* Fake the the following irrelvant fields */ 3565 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 3566 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 3567 bf_set(lpfc_mbx_read_top_il, la, 0); 3568 bf_set(lpfc_mbx_read_top_pb, la, 0); 3569 bf_set(lpfc_mbx_read_top_fa, la, 0); 3570 bf_set(lpfc_mbx_read_top_mm, la, 0); 3571 3572 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3573 lpfc_mbx_cmpl_read_topology(phba, pmb); 3574 3575 return; 3576 3577 out_free_dmabuf: 3578 kfree(mp); 3579 out_free_pmb: 3580 mempool_free(pmb, phba->mbox_mem_pool); 3581 } 3582 3583 /** 3584 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 3585 * @phba: pointer to lpfc hba data structure. 3586 * @acqe_fc: pointer to the async fc completion queue entry. 3587 * 3588 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 3589 * that the event was received and then issue a read_topology mailbox command so 3590 * that the rest of the driver will treat it the same as SLI3. 3591 **/ 3592 static void 3593 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 3594 { 3595 struct lpfc_dmabuf *mp; 3596 LPFC_MBOXQ_t *pmb; 3597 int rc; 3598 3599 if (bf_get(lpfc_trailer_type, acqe_fc) != 3600 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 3601 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3602 "2895 Non FC link Event detected.(%d)\n", 3603 bf_get(lpfc_trailer_type, acqe_fc)); 3604 return; 3605 } 3606 /* Keep the link status for extra SLI4 state machine reference */ 3607 phba->sli4_hba.link_state.speed = 3608 bf_get(lpfc_acqe_fc_la_speed, acqe_fc); 3609 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 3610 phba->sli4_hba.link_state.topology = 3611 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 3612 phba->sli4_hba.link_state.status = 3613 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 3614 phba->sli4_hba.link_state.type = 3615 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 3616 phba->sli4_hba.link_state.number = 3617 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 3618 phba->sli4_hba.link_state.fault = 3619 bf_get(lpfc_acqe_link_fault, acqe_fc); 3620 phba->sli4_hba.link_state.logical_speed = 3621 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc); 3622 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3623 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 3624 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 3625 "%dMbps Fault:%d\n", 3626 phba->sli4_hba.link_state.speed, 3627 phba->sli4_hba.link_state.topology, 3628 phba->sli4_hba.link_state.status, 3629 phba->sli4_hba.link_state.type, 3630 phba->sli4_hba.link_state.number, 3631 phba->sli4_hba.link_state.logical_speed * 10, 3632 phba->sli4_hba.link_state.fault); 3633 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3634 if (!pmb) { 3635 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3636 "2897 The mboxq allocation failed\n"); 3637 return; 3638 } 3639 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3640 if (!mp) { 3641 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3642 "2898 The lpfc_dmabuf allocation failed\n"); 3643 goto out_free_pmb; 3644 } 3645 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3646 if (!mp->virt) { 3647 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3648 "2899 The mbuf allocation failed\n"); 3649 goto out_free_dmabuf; 3650 } 3651 3652 /* Cleanup any outstanding ELS commands */ 3653 lpfc_els_flush_all_cmd(phba); 3654 3655 /* Block ELS IOCBs until we have done process link event */ 3656 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3657 3658 /* Update link event statistics */ 3659 phba->sli.slistat.link_event++; 3660 3661 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3662 lpfc_read_topology(phba, pmb, mp); 3663 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3664 pmb->vport = phba->pport; 3665 3666 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3667 if (rc == MBX_NOT_FINISHED) 3668 goto out_free_dmabuf; 3669 return; 3670 3671 out_free_dmabuf: 3672 kfree(mp); 3673 out_free_pmb: 3674 mempool_free(pmb, phba->mbox_mem_pool); 3675 } 3676 3677 /** 3678 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 3679 * @phba: pointer to lpfc hba data structure. 3680 * @acqe_fc: pointer to the async SLI completion queue entry. 3681 * 3682 * This routine is to handle the SLI4 asynchronous SLI events. 3683 **/ 3684 static void 3685 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 3686 { 3687 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3688 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 3689 "x%08x SLI Event Type:%d", 3690 acqe_sli->event_data1, acqe_sli->event_data2, 3691 bf_get(lpfc_trailer_type, acqe_sli)); 3692 return; 3693 } 3694 3695 /** 3696 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3697 * @vport: pointer to vport data structure. 3698 * 3699 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3700 * response to a CVL event. 3701 * 3702 * Return the pointer to the ndlp with the vport if successful, otherwise 3703 * return NULL. 3704 **/ 3705 static struct lpfc_nodelist * 3706 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3707 { 3708 struct lpfc_nodelist *ndlp; 3709 struct Scsi_Host *shost; 3710 struct lpfc_hba *phba; 3711 3712 if (!vport) 3713 return NULL; 3714 phba = vport->phba; 3715 if (!phba) 3716 return NULL; 3717 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3718 if (!ndlp) { 3719 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3720 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3721 if (!ndlp) 3722 return 0; 3723 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3724 /* Set the node type */ 3725 ndlp->nlp_type |= NLP_FABRIC; 3726 /* Put ndlp onto node list */ 3727 lpfc_enqueue_node(vport, ndlp); 3728 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3729 /* re-setup ndlp without removing from node list */ 3730 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3731 if (!ndlp) 3732 return 0; 3733 } 3734 if ((phba->pport->port_state < LPFC_FLOGI) && 3735 (phba->pport->port_state != LPFC_VPORT_FAILED)) 3736 return NULL; 3737 /* If virtual link is not yet instantiated ignore CVL */ 3738 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 3739 && (vport->port_state != LPFC_VPORT_FAILED)) 3740 return NULL; 3741 shost = lpfc_shost_from_vport(vport); 3742 if (!shost) 3743 return NULL; 3744 lpfc_linkdown_port(vport); 3745 lpfc_cleanup_pending_mbox(vport); 3746 spin_lock_irq(shost->host_lock); 3747 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3748 spin_unlock_irq(shost->host_lock); 3749 3750 return ndlp; 3751 } 3752 3753 /** 3754 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3755 * @vport: pointer to lpfc hba data structure. 3756 * 3757 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3758 * response to a FCF dead event. 3759 **/ 3760 static void 3761 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3762 { 3763 struct lpfc_vport **vports; 3764 int i; 3765 3766 vports = lpfc_create_vport_work_array(phba); 3767 if (vports) 3768 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3769 lpfc_sli4_perform_vport_cvl(vports[i]); 3770 lpfc_destroy_vport_work_array(phba, vports); 3771 } 3772 3773 /** 3774 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 3775 * @phba: pointer to lpfc hba data structure. 3776 * @acqe_link: pointer to the async fcoe completion queue entry. 3777 * 3778 * This routine is to handle the SLI4 asynchronous fcoe event. 3779 **/ 3780 static void 3781 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 3782 struct lpfc_acqe_fip *acqe_fip) 3783 { 3784 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 3785 int rc; 3786 struct lpfc_vport *vport; 3787 struct lpfc_nodelist *ndlp; 3788 struct Scsi_Host *shost; 3789 int active_vlink_present; 3790 struct lpfc_vport **vports; 3791 int i; 3792 3793 phba->fc_eventTag = acqe_fip->event_tag; 3794 phba->fcoe_eventtag = acqe_fip->event_tag; 3795 switch (event_type) { 3796 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 3797 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 3798 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 3799 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3800 LOG_DISCOVERY, 3801 "2546 New FCF event, evt_tag:x%x, " 3802 "index:x%x\n", 3803 acqe_fip->event_tag, 3804 acqe_fip->index); 3805 else 3806 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 3807 LOG_DISCOVERY, 3808 "2788 FCF param modified event, " 3809 "evt_tag:x%x, index:x%x\n", 3810 acqe_fip->event_tag, 3811 acqe_fip->index); 3812 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3813 /* 3814 * During period of FCF discovery, read the FCF 3815 * table record indexed by the event to update 3816 * FCF roundrobin failover eligible FCF bmask. 3817 */ 3818 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3819 LOG_DISCOVERY, 3820 "2779 Read FCF (x%x) for updating " 3821 "roundrobin FCF failover bmask\n", 3822 acqe_fip->index); 3823 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 3824 } 3825 3826 /* If the FCF discovery is in progress, do nothing. */ 3827 spin_lock_irq(&phba->hbalock); 3828 if (phba->hba_flag & FCF_TS_INPROG) { 3829 spin_unlock_irq(&phba->hbalock); 3830 break; 3831 } 3832 /* If fast FCF failover rescan event is pending, do nothing */ 3833 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 3834 spin_unlock_irq(&phba->hbalock); 3835 break; 3836 } 3837 3838 /* If the FCF has been in discovered state, do nothing. */ 3839 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 3840 spin_unlock_irq(&phba->hbalock); 3841 break; 3842 } 3843 spin_unlock_irq(&phba->hbalock); 3844 3845 /* Otherwise, scan the entire FCF table and re-discover SAN */ 3846 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3847 "2770 Start FCF table scan per async FCF " 3848 "event, evt_tag:x%x, index:x%x\n", 3849 acqe_fip->event_tag, acqe_fip->index); 3850 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3851 LPFC_FCOE_FCF_GET_FIRST); 3852 if (rc) 3853 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3854 "2547 Issue FCF scan read FCF mailbox " 3855 "command failed (x%x)\n", rc); 3856 break; 3857 3858 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 3859 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3860 "2548 FCF Table full count 0x%x tag 0x%x\n", 3861 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 3862 acqe_fip->event_tag); 3863 break; 3864 3865 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 3866 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 3867 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3868 "2549 FCF (x%x) disconnected from network, " 3869 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 3870 /* 3871 * If we are in the middle of FCF failover process, clear 3872 * the corresponding FCF bit in the roundrobin bitmap. 3873 */ 3874 spin_lock_irq(&phba->hbalock); 3875 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3876 spin_unlock_irq(&phba->hbalock); 3877 /* Update FLOGI FCF failover eligible FCF bmask */ 3878 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 3879 break; 3880 } 3881 spin_unlock_irq(&phba->hbalock); 3882 3883 /* If the event is not for currently used fcf do nothing */ 3884 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 3885 break; 3886 3887 /* 3888 * Otherwise, request the port to rediscover the entire FCF 3889 * table for a fast recovery from case that the current FCF 3890 * is no longer valid as we are not in the middle of FCF 3891 * failover process already. 3892 */ 3893 spin_lock_irq(&phba->hbalock); 3894 /* Mark the fast failover process in progress */ 3895 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 3896 spin_unlock_irq(&phba->hbalock); 3897 3898 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3899 "2771 Start FCF fast failover process due to " 3900 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 3901 "\n", acqe_fip->event_tag, acqe_fip->index); 3902 rc = lpfc_sli4_redisc_fcf_table(phba); 3903 if (rc) { 3904 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3905 LOG_DISCOVERY, 3906 "2772 Issue FCF rediscover mabilbox " 3907 "command failed, fail through to FCF " 3908 "dead event\n"); 3909 spin_lock_irq(&phba->hbalock); 3910 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 3911 spin_unlock_irq(&phba->hbalock); 3912 /* 3913 * Last resort will fail over by treating this 3914 * as a link down to FCF registration. 3915 */ 3916 lpfc_sli4_fcf_dead_failthrough(phba); 3917 } else { 3918 /* Reset FCF roundrobin bmask for new discovery */ 3919 lpfc_sli4_clear_fcf_rr_bmask(phba); 3920 /* 3921 * Handling fast FCF failover to a DEAD FCF event is 3922 * considered equalivant to receiving CVL to all vports. 3923 */ 3924 lpfc_sli4_perform_all_vport_cvl(phba); 3925 } 3926 break; 3927 case LPFC_FIP_EVENT_TYPE_CVL: 3928 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 3929 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3930 "2718 Clear Virtual Link Received for VPI 0x%x" 3931 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 3932 3933 vport = lpfc_find_vport_by_vpid(phba, 3934 acqe_fip->index); 3935 ndlp = lpfc_sli4_perform_vport_cvl(vport); 3936 if (!ndlp) 3937 break; 3938 active_vlink_present = 0; 3939 3940 vports = lpfc_create_vport_work_array(phba); 3941 if (vports) { 3942 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 3943 i++) { 3944 if ((!(vports[i]->fc_flag & 3945 FC_VPORT_CVL_RCVD)) && 3946 (vports[i]->port_state > LPFC_FDISC)) { 3947 active_vlink_present = 1; 3948 break; 3949 } 3950 } 3951 lpfc_destroy_vport_work_array(phba, vports); 3952 } 3953 3954 if (active_vlink_present) { 3955 /* 3956 * If there are other active VLinks present, 3957 * re-instantiate the Vlink using FDISC. 3958 */ 3959 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3960 shost = lpfc_shost_from_vport(vport); 3961 spin_lock_irq(shost->host_lock); 3962 ndlp->nlp_flag |= NLP_DELAY_TMO; 3963 spin_unlock_irq(shost->host_lock); 3964 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 3965 vport->port_state = LPFC_FDISC; 3966 } else { 3967 /* 3968 * Otherwise, we request port to rediscover 3969 * the entire FCF table for a fast recovery 3970 * from possible case that the current FCF 3971 * is no longer valid if we are not already 3972 * in the FCF failover process. 3973 */ 3974 spin_lock_irq(&phba->hbalock); 3975 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3976 spin_unlock_irq(&phba->hbalock); 3977 break; 3978 } 3979 /* Mark the fast failover process in progress */ 3980 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 3981 spin_unlock_irq(&phba->hbalock); 3982 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3983 LOG_DISCOVERY, 3984 "2773 Start FCF failover per CVL, " 3985 "evt_tag:x%x\n", acqe_fip->event_tag); 3986 rc = lpfc_sli4_redisc_fcf_table(phba); 3987 if (rc) { 3988 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3989 LOG_DISCOVERY, 3990 "2774 Issue FCF rediscover " 3991 "mabilbox command failed, " 3992 "through to CVL event\n"); 3993 spin_lock_irq(&phba->hbalock); 3994 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 3995 spin_unlock_irq(&phba->hbalock); 3996 /* 3997 * Last resort will be re-try on the 3998 * the current registered FCF entry. 3999 */ 4000 lpfc_retry_pport_discovery(phba); 4001 } else 4002 /* 4003 * Reset FCF roundrobin bmask for new 4004 * discovery. 4005 */ 4006 lpfc_sli4_clear_fcf_rr_bmask(phba); 4007 } 4008 break; 4009 default: 4010 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4011 "0288 Unknown FCoE event type 0x%x event tag " 4012 "0x%x\n", event_type, acqe_fip->event_tag); 4013 break; 4014 } 4015 } 4016 4017 /** 4018 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 4019 * @phba: pointer to lpfc hba data structure. 4020 * @acqe_link: pointer to the async dcbx completion queue entry. 4021 * 4022 * This routine is to handle the SLI4 asynchronous dcbx event. 4023 **/ 4024 static void 4025 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 4026 struct lpfc_acqe_dcbx *acqe_dcbx) 4027 { 4028 phba->fc_eventTag = acqe_dcbx->event_tag; 4029 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4030 "0290 The SLI4 DCBX asynchronous event is not " 4031 "handled yet\n"); 4032 } 4033 4034 /** 4035 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 4036 * @phba: pointer to lpfc hba data structure. 4037 * @acqe_link: pointer to the async grp5 completion queue entry. 4038 * 4039 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 4040 * is an asynchronous notified of a logical link speed change. The Port 4041 * reports the logical link speed in units of 10Mbps. 4042 **/ 4043 static void 4044 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 4045 struct lpfc_acqe_grp5 *acqe_grp5) 4046 { 4047 uint16_t prev_ll_spd; 4048 4049 phba->fc_eventTag = acqe_grp5->event_tag; 4050 phba->fcoe_eventtag = acqe_grp5->event_tag; 4051 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 4052 phba->sli4_hba.link_state.logical_speed = 4053 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); 4054 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4055 "2789 GRP5 Async Event: Updating logical link speed " 4056 "from %dMbps to %dMbps\n", (prev_ll_spd * 10), 4057 (phba->sli4_hba.link_state.logical_speed*10)); 4058 } 4059 4060 /** 4061 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 4062 * @phba: pointer to lpfc hba data structure. 4063 * 4064 * This routine is invoked by the worker thread to process all the pending 4065 * SLI4 asynchronous events. 4066 **/ 4067 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 4068 { 4069 struct lpfc_cq_event *cq_event; 4070 4071 /* First, declare the async event has been handled */ 4072 spin_lock_irq(&phba->hbalock); 4073 phba->hba_flag &= ~ASYNC_EVENT; 4074 spin_unlock_irq(&phba->hbalock); 4075 /* Now, handle all the async events */ 4076 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 4077 /* Get the first event from the head of the event queue */ 4078 spin_lock_irq(&phba->hbalock); 4079 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 4080 cq_event, struct lpfc_cq_event, list); 4081 spin_unlock_irq(&phba->hbalock); 4082 /* Process the asynchronous event */ 4083 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 4084 case LPFC_TRAILER_CODE_LINK: 4085 lpfc_sli4_async_link_evt(phba, 4086 &cq_event->cqe.acqe_link); 4087 break; 4088 case LPFC_TRAILER_CODE_FCOE: 4089 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 4090 break; 4091 case LPFC_TRAILER_CODE_DCBX: 4092 lpfc_sli4_async_dcbx_evt(phba, 4093 &cq_event->cqe.acqe_dcbx); 4094 break; 4095 case LPFC_TRAILER_CODE_GRP5: 4096 lpfc_sli4_async_grp5_evt(phba, 4097 &cq_event->cqe.acqe_grp5); 4098 break; 4099 case LPFC_TRAILER_CODE_FC: 4100 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 4101 break; 4102 case LPFC_TRAILER_CODE_SLI: 4103 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 4104 break; 4105 default: 4106 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4107 "1804 Invalid asynchrous event code: " 4108 "x%x\n", bf_get(lpfc_trailer_code, 4109 &cq_event->cqe.mcqe_cmpl)); 4110 break; 4111 } 4112 /* Free the completion event processed to the free pool */ 4113 lpfc_sli4_cq_event_release(phba, cq_event); 4114 } 4115 } 4116 4117 /** 4118 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 4119 * @phba: pointer to lpfc hba data structure. 4120 * 4121 * This routine is invoked by the worker thread to process FCF table 4122 * rediscovery pending completion event. 4123 **/ 4124 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 4125 { 4126 int rc; 4127 4128 spin_lock_irq(&phba->hbalock); 4129 /* Clear FCF rediscovery timeout event */ 4130 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 4131 /* Clear driver fast failover FCF record flag */ 4132 phba->fcf.failover_rec.flag = 0; 4133 /* Set state for FCF fast failover */ 4134 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 4135 spin_unlock_irq(&phba->hbalock); 4136 4137 /* Scan FCF table from the first entry to re-discover SAN */ 4138 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4139 "2777 Start post-quiescent FCF table scan\n"); 4140 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 4141 if (rc) 4142 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4143 "2747 Issue FCF scan read FCF mailbox " 4144 "command failed 0x%x\n", rc); 4145 } 4146 4147 /** 4148 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 4149 * @phba: pointer to lpfc hba data structure. 4150 * @dev_grp: The HBA PCI-Device group number. 4151 * 4152 * This routine is invoked to set up the per HBA PCI-Device group function 4153 * API jump table entries. 4154 * 4155 * Return: 0 if success, otherwise -ENODEV 4156 **/ 4157 int 4158 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4159 { 4160 int rc; 4161 4162 /* Set up lpfc PCI-device group */ 4163 phba->pci_dev_grp = dev_grp; 4164 4165 /* The LPFC_PCI_DEV_OC uses SLI4 */ 4166 if (dev_grp == LPFC_PCI_DEV_OC) 4167 phba->sli_rev = LPFC_SLI_REV4; 4168 4169 /* Set up device INIT API function jump table */ 4170 rc = lpfc_init_api_table_setup(phba, dev_grp); 4171 if (rc) 4172 return -ENODEV; 4173 /* Set up SCSI API function jump table */ 4174 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 4175 if (rc) 4176 return -ENODEV; 4177 /* Set up SLI API function jump table */ 4178 rc = lpfc_sli_api_table_setup(phba, dev_grp); 4179 if (rc) 4180 return -ENODEV; 4181 /* Set up MBOX API function jump table */ 4182 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 4183 if (rc) 4184 return -ENODEV; 4185 4186 return 0; 4187 } 4188 4189 /** 4190 * lpfc_log_intr_mode - Log the active interrupt mode 4191 * @phba: pointer to lpfc hba data structure. 4192 * @intr_mode: active interrupt mode adopted. 4193 * 4194 * This routine it invoked to log the currently used active interrupt mode 4195 * to the device. 4196 **/ 4197 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 4198 { 4199 switch (intr_mode) { 4200 case 0: 4201 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4202 "0470 Enable INTx interrupt mode.\n"); 4203 break; 4204 case 1: 4205 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4206 "0481 Enabled MSI interrupt mode.\n"); 4207 break; 4208 case 2: 4209 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4210 "0480 Enabled MSI-X interrupt mode.\n"); 4211 break; 4212 default: 4213 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4214 "0482 Illegal interrupt mode.\n"); 4215 break; 4216 } 4217 return; 4218 } 4219 4220 /** 4221 * lpfc_enable_pci_dev - Enable a generic PCI device. 4222 * @phba: pointer to lpfc hba data structure. 4223 * 4224 * This routine is invoked to enable the PCI device that is common to all 4225 * PCI devices. 4226 * 4227 * Return codes 4228 * 0 - successful 4229 * other values - error 4230 **/ 4231 static int 4232 lpfc_enable_pci_dev(struct lpfc_hba *phba) 4233 { 4234 struct pci_dev *pdev; 4235 int bars = 0; 4236 4237 /* Obtain PCI device reference */ 4238 if (!phba->pcidev) 4239 goto out_error; 4240 else 4241 pdev = phba->pcidev; 4242 /* Select PCI BARs */ 4243 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4244 /* Enable PCI device */ 4245 if (pci_enable_device_mem(pdev)) 4246 goto out_error; 4247 /* Request PCI resource for the device */ 4248 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 4249 goto out_disable_device; 4250 /* Set up device as PCI master and save state for EEH */ 4251 pci_set_master(pdev); 4252 pci_try_set_mwi(pdev); 4253 pci_save_state(pdev); 4254 4255 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 4256 if (pci_find_capability(pdev, PCI_CAP_ID_EXP)) 4257 pdev->needs_freset = 1; 4258 4259 return 0; 4260 4261 out_disable_device: 4262 pci_disable_device(pdev); 4263 out_error: 4264 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4265 "1401 Failed to enable pci device, bars:x%x\n", bars); 4266 return -ENODEV; 4267 } 4268 4269 /** 4270 * lpfc_disable_pci_dev - Disable a generic PCI device. 4271 * @phba: pointer to lpfc hba data structure. 4272 * 4273 * This routine is invoked to disable the PCI device that is common to all 4274 * PCI devices. 4275 **/ 4276 static void 4277 lpfc_disable_pci_dev(struct lpfc_hba *phba) 4278 { 4279 struct pci_dev *pdev; 4280 int bars; 4281 4282 /* Obtain PCI device reference */ 4283 if (!phba->pcidev) 4284 return; 4285 else 4286 pdev = phba->pcidev; 4287 /* Select PCI BARs */ 4288 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4289 /* Release PCI resource and disable PCI device */ 4290 pci_release_selected_regions(pdev, bars); 4291 pci_disable_device(pdev); 4292 /* Null out PCI private reference to driver */ 4293 pci_set_drvdata(pdev, NULL); 4294 4295 return; 4296 } 4297 4298 /** 4299 * lpfc_reset_hba - Reset a hba 4300 * @phba: pointer to lpfc hba data structure. 4301 * 4302 * This routine is invoked to reset a hba device. It brings the HBA 4303 * offline, performs a board restart, and then brings the board back 4304 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 4305 * on outstanding mailbox commands. 4306 **/ 4307 void 4308 lpfc_reset_hba(struct lpfc_hba *phba) 4309 { 4310 /* If resets are disabled then set error state and return. */ 4311 if (!phba->cfg_enable_hba_reset) { 4312 phba->link_state = LPFC_HBA_ERROR; 4313 return; 4314 } 4315 lpfc_offline_prep(phba); 4316 lpfc_offline(phba); 4317 lpfc_sli_brdrestart(phba); 4318 lpfc_online(phba); 4319 lpfc_unblock_mgmt_io(phba); 4320 } 4321 4322 /** 4323 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 4324 * @phba: pointer to lpfc hba data structure. 4325 * 4326 * This function enables the PCI SR-IOV virtual functions to a physical 4327 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4328 * enable the number of virtual functions to the physical function. As 4329 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4330 * API call does not considered as an error condition for most of the device. 4331 **/ 4332 uint16_t 4333 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 4334 { 4335 struct pci_dev *pdev = phba->pcidev; 4336 uint16_t nr_virtfn; 4337 int pos; 4338 4339 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 4340 if (pos == 0) 4341 return 0; 4342 4343 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 4344 return nr_virtfn; 4345 } 4346 4347 /** 4348 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 4349 * @phba: pointer to lpfc hba data structure. 4350 * @nr_vfn: number of virtual functions to be enabled. 4351 * 4352 * This function enables the PCI SR-IOV virtual functions to a physical 4353 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4354 * enable the number of virtual functions to the physical function. As 4355 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4356 * API call does not considered as an error condition for most of the device. 4357 **/ 4358 int 4359 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 4360 { 4361 struct pci_dev *pdev = phba->pcidev; 4362 uint16_t max_nr_vfn; 4363 int rc; 4364 4365 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 4366 if (nr_vfn > max_nr_vfn) { 4367 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4368 "3057 Requested vfs (%d) greater than " 4369 "supported vfs (%d)", nr_vfn, max_nr_vfn); 4370 return -EINVAL; 4371 } 4372 4373 rc = pci_enable_sriov(pdev, nr_vfn); 4374 if (rc) { 4375 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4376 "2806 Failed to enable sriov on this device " 4377 "with vfn number nr_vf:%d, rc:%d\n", 4378 nr_vfn, rc); 4379 } else 4380 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4381 "2807 Successful enable sriov on this device " 4382 "with vfn number nr_vf:%d\n", nr_vfn); 4383 return rc; 4384 } 4385 4386 /** 4387 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 4388 * @phba: pointer to lpfc hba data structure. 4389 * 4390 * This routine is invoked to set up the driver internal resources specific to 4391 * support the SLI-3 HBA device it attached to. 4392 * 4393 * Return codes 4394 * 0 - successful 4395 * other values - error 4396 **/ 4397 static int 4398 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 4399 { 4400 struct lpfc_sli *psli; 4401 int rc; 4402 4403 /* 4404 * Initialize timers used by driver 4405 */ 4406 4407 /* Heartbeat timer */ 4408 init_timer(&phba->hb_tmofunc); 4409 phba->hb_tmofunc.function = lpfc_hb_timeout; 4410 phba->hb_tmofunc.data = (unsigned long)phba; 4411 4412 psli = &phba->sli; 4413 /* MBOX heartbeat timer */ 4414 init_timer(&psli->mbox_tmo); 4415 psli->mbox_tmo.function = lpfc_mbox_timeout; 4416 psli->mbox_tmo.data = (unsigned long) phba; 4417 /* FCP polling mode timer */ 4418 init_timer(&phba->fcp_poll_timer); 4419 phba->fcp_poll_timer.function = lpfc_poll_timeout; 4420 phba->fcp_poll_timer.data = (unsigned long) phba; 4421 /* Fabric block timer */ 4422 init_timer(&phba->fabric_block_timer); 4423 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4424 phba->fabric_block_timer.data = (unsigned long) phba; 4425 /* EA polling mode timer */ 4426 init_timer(&phba->eratt_poll); 4427 phba->eratt_poll.function = lpfc_poll_eratt; 4428 phba->eratt_poll.data = (unsigned long) phba; 4429 4430 /* Host attention work mask setup */ 4431 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 4432 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 4433 4434 /* Get all the module params for configuring this host */ 4435 lpfc_get_cfgparam(phba); 4436 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 4437 phba->menlo_flag |= HBA_MENLO_SUPPORT; 4438 /* check for menlo minimum sg count */ 4439 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 4440 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 4441 } 4442 4443 /* 4444 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4445 * used to create the sg_dma_buf_pool must be dynamically calculated. 4446 * 2 segments are added since the IOCB needs a command and response bde. 4447 */ 4448 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4449 sizeof(struct fcp_rsp) + 4450 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 4451 4452 if (phba->cfg_enable_bg) { 4453 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 4454 phba->cfg_sg_dma_buf_size += 4455 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 4456 } 4457 4458 /* Also reinitialize the host templates with new values. */ 4459 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4460 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4461 4462 phba->max_vpi = LPFC_MAX_VPI; 4463 /* This will be set to correct value after config_port mbox */ 4464 phba->max_vports = 0; 4465 4466 /* 4467 * Initialize the SLI Layer to run with lpfc HBAs. 4468 */ 4469 lpfc_sli_setup(phba); 4470 lpfc_sli_queue_setup(phba); 4471 4472 /* Allocate device driver memory */ 4473 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 4474 return -ENOMEM; 4475 4476 /* 4477 * Enable sr-iov virtual functions if supported and configured 4478 * through the module parameter. 4479 */ 4480 if (phba->cfg_sriov_nr_virtfn > 0) { 4481 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4482 phba->cfg_sriov_nr_virtfn); 4483 if (rc) { 4484 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4485 "2808 Requested number of SR-IOV " 4486 "virtual functions (%d) is not " 4487 "supported\n", 4488 phba->cfg_sriov_nr_virtfn); 4489 phba->cfg_sriov_nr_virtfn = 0; 4490 } 4491 } 4492 4493 return 0; 4494 } 4495 4496 /** 4497 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 4498 * @phba: pointer to lpfc hba data structure. 4499 * 4500 * This routine is invoked to unset the driver internal resources set up 4501 * specific for supporting the SLI-3 HBA device it attached to. 4502 **/ 4503 static void 4504 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 4505 { 4506 /* Free device driver memory allocated */ 4507 lpfc_mem_free_all(phba); 4508 4509 return; 4510 } 4511 4512 /** 4513 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 4514 * @phba: pointer to lpfc hba data structure. 4515 * 4516 * This routine is invoked to set up the driver internal resources specific to 4517 * support the SLI-4 HBA device it attached to. 4518 * 4519 * Return codes 4520 * 0 - successful 4521 * other values - error 4522 **/ 4523 static int 4524 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 4525 { 4526 struct lpfc_sli *psli; 4527 LPFC_MBOXQ_t *mboxq; 4528 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 4529 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 4530 struct lpfc_mqe *mqe; 4531 int longs, sli_family; 4532 int sges_per_segment; 4533 4534 /* Before proceed, wait for POST done and device ready */ 4535 rc = lpfc_sli4_post_status_check(phba); 4536 if (rc) 4537 return -ENODEV; 4538 4539 /* 4540 * Initialize timers used by driver 4541 */ 4542 4543 /* Heartbeat timer */ 4544 init_timer(&phba->hb_tmofunc); 4545 phba->hb_tmofunc.function = lpfc_hb_timeout; 4546 phba->hb_tmofunc.data = (unsigned long)phba; 4547 init_timer(&phba->rrq_tmr); 4548 phba->rrq_tmr.function = lpfc_rrq_timeout; 4549 phba->rrq_tmr.data = (unsigned long)phba; 4550 4551 psli = &phba->sli; 4552 /* MBOX heartbeat timer */ 4553 init_timer(&psli->mbox_tmo); 4554 psli->mbox_tmo.function = lpfc_mbox_timeout; 4555 psli->mbox_tmo.data = (unsigned long) phba; 4556 /* Fabric block timer */ 4557 init_timer(&phba->fabric_block_timer); 4558 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4559 phba->fabric_block_timer.data = (unsigned long) phba; 4560 /* EA polling mode timer */ 4561 init_timer(&phba->eratt_poll); 4562 phba->eratt_poll.function = lpfc_poll_eratt; 4563 phba->eratt_poll.data = (unsigned long) phba; 4564 /* FCF rediscover timer */ 4565 init_timer(&phba->fcf.redisc_wait); 4566 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4567 phba->fcf.redisc_wait.data = (unsigned long)phba; 4568 4569 /* 4570 * Control structure for handling external multi-buffer mailbox 4571 * command pass-through. 4572 */ 4573 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 4574 sizeof(struct lpfc_mbox_ext_buf_ctx)); 4575 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 4576 4577 /* 4578 * We need to do a READ_CONFIG mailbox command here before 4579 * calling lpfc_get_cfgparam. For VFs this will report the 4580 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 4581 * All of the resources allocated 4582 * for this Port are tied to these values. 4583 */ 4584 /* Get all the module params for configuring this host */ 4585 lpfc_get_cfgparam(phba); 4586 phba->max_vpi = LPFC_MAX_VPI; 4587 /* This will be set to correct value after the read_config mbox */ 4588 phba->max_vports = 0; 4589 4590 /* Program the default value of vlan_id and fc_map */ 4591 phba->valid_vlan = 0; 4592 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4593 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4594 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4595 4596 /* With BlockGuard we can have multiple SGEs per Data Segemnt */ 4597 sges_per_segment = 1; 4598 if (phba->cfg_enable_bg) 4599 sges_per_segment = 2; 4600 4601 /* 4602 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4603 * used to create the sg_dma_buf_pool must be dynamically calculated. 4604 * 2 segments are added since the IOCB needs a command and response bde. 4605 * To insure that the scsi sgl does not cross a 4k page boundary only 4606 * sgl sizes of must be a power of 2. 4607 */ 4608 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 4609 (((phba->cfg_sg_seg_cnt * sges_per_segment) + 2) * 4610 sizeof(struct sli4_sge))); 4611 4612 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf); 4613 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4614 switch (sli_family) { 4615 case LPFC_SLI_INTF_FAMILY_BE2: 4616 case LPFC_SLI_INTF_FAMILY_BE3: 4617 /* There is a single hint for BE - 2 pages per BPL. */ 4618 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) == 4619 LPFC_SLI_INTF_SLI_HINT1_1) 4620 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4621 break; 4622 case LPFC_SLI_INTF_FAMILY_LNCR_A0: 4623 case LPFC_SLI_INTF_FAMILY_LNCR_B0: 4624 default: 4625 break; 4626 } 4627 4628 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4629 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4630 dma_buf_size = dma_buf_size << 1) 4631 ; 4632 if (dma_buf_size == max_buf_size) 4633 phba->cfg_sg_seg_cnt = (dma_buf_size - 4634 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4635 (2 * sizeof(struct sli4_sge))) / 4636 sizeof(struct sli4_sge); 4637 phba->cfg_sg_dma_buf_size = dma_buf_size; 4638 4639 /* Initialize buffer queue management fields */ 4640 hbq_count = lpfc_sli_hbq_count(); 4641 for (i = 0; i < hbq_count; ++i) 4642 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4643 INIT_LIST_HEAD(&phba->rb_pend_list); 4644 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4645 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4646 4647 /* 4648 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4649 */ 4650 /* Initialize the Abort scsi buffer list used by driver */ 4651 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4652 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4653 /* This abort list used by worker thread */ 4654 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4655 4656 /* 4657 * Initialize driver internal slow-path work queues 4658 */ 4659 4660 /* Driver internel slow-path CQ Event pool */ 4661 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4662 /* Response IOCB work queue list */ 4663 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4664 /* Asynchronous event CQ Event work queue list */ 4665 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4666 /* Fast-path XRI aborted CQ Event work queue list */ 4667 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4668 /* Slow-path XRI aborted CQ Event work queue list */ 4669 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4670 /* Receive queue CQ Event work queue list */ 4671 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4672 4673 /* Initialize extent block lists. */ 4674 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 4675 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 4676 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 4677 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 4678 4679 /* Initialize the driver internal SLI layer lists. */ 4680 lpfc_sli_setup(phba); 4681 lpfc_sli_queue_setup(phba); 4682 4683 /* Allocate device driver memory */ 4684 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4685 if (rc) 4686 return -ENOMEM; 4687 4688 /* IF Type 2 ports get initialized now. */ 4689 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4690 LPFC_SLI_INTF_IF_TYPE_2) { 4691 rc = lpfc_pci_function_reset(phba); 4692 if (unlikely(rc)) 4693 return -ENODEV; 4694 } 4695 4696 /* Create the bootstrap mailbox command */ 4697 rc = lpfc_create_bootstrap_mbox(phba); 4698 if (unlikely(rc)) 4699 goto out_free_mem; 4700 4701 /* Set up the host's endian order with the device. */ 4702 rc = lpfc_setup_endian_order(phba); 4703 if (unlikely(rc)) 4704 goto out_free_bsmbx; 4705 4706 /* Set up the hba's configuration parameters. */ 4707 rc = lpfc_sli4_read_config(phba); 4708 if (unlikely(rc)) 4709 goto out_free_bsmbx; 4710 4711 /* IF Type 0 ports get initialized now. */ 4712 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4713 LPFC_SLI_INTF_IF_TYPE_0) { 4714 rc = lpfc_pci_function_reset(phba); 4715 if (unlikely(rc)) 4716 goto out_free_bsmbx; 4717 } 4718 4719 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4720 GFP_KERNEL); 4721 if (!mboxq) { 4722 rc = -ENOMEM; 4723 goto out_free_bsmbx; 4724 } 4725 4726 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 4727 lpfc_supported_pages(mboxq); 4728 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4729 if (!rc) { 4730 mqe = &mboxq->u.mqe; 4731 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4732 LPFC_MAX_SUPPORTED_PAGES); 4733 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4734 switch (pn_page[i]) { 4735 case LPFC_SLI4_PARAMETERS: 4736 phba->sli4_hba.pc_sli4_params.supported = 1; 4737 break; 4738 default: 4739 break; 4740 } 4741 } 4742 /* Read the port's SLI4 Parameters capabilities if supported. */ 4743 if (phba->sli4_hba.pc_sli4_params.supported) 4744 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4745 if (rc) { 4746 mempool_free(mboxq, phba->mbox_mem_pool); 4747 rc = -EIO; 4748 goto out_free_bsmbx; 4749 } 4750 } 4751 /* 4752 * Get sli4 parameters that override parameters from Port capabilities. 4753 * If this call fails, it isn't critical unless the SLI4 parameters come 4754 * back in conflict. 4755 */ 4756 rc = lpfc_get_sli4_parameters(phba, mboxq); 4757 if (rc) { 4758 if (phba->sli4_hba.extents_in_use && 4759 phba->sli4_hba.rpi_hdrs_in_use) { 4760 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4761 "2999 Unsupported SLI4 Parameters " 4762 "Extents and RPI headers enabled.\n"); 4763 goto out_free_bsmbx; 4764 } 4765 } 4766 mempool_free(mboxq, phba->mbox_mem_pool); 4767 /* Verify all the SLI4 queues */ 4768 rc = lpfc_sli4_queue_verify(phba); 4769 if (rc) 4770 goto out_free_bsmbx; 4771 4772 /* Create driver internal CQE event pool */ 4773 rc = lpfc_sli4_cq_event_pool_create(phba); 4774 if (rc) 4775 goto out_free_bsmbx; 4776 4777 /* Initialize sgl lists per host */ 4778 lpfc_init_sgl_list(phba); 4779 4780 /* Allocate and initialize active sgl array */ 4781 rc = lpfc_init_active_sgl_array(phba); 4782 if (rc) { 4783 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4784 "1430 Failed to initialize sgl list.\n"); 4785 goto out_destroy_cq_event_pool; 4786 } 4787 rc = lpfc_sli4_init_rpi_hdrs(phba); 4788 if (rc) { 4789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4790 "1432 Failed to initialize rpi headers.\n"); 4791 goto out_free_active_sgl; 4792 } 4793 4794 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 4795 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 4796 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 4797 GFP_KERNEL); 4798 if (!phba->fcf.fcf_rr_bmask) { 4799 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4800 "2759 Failed allocate memory for FCF round " 4801 "robin failover bmask\n"); 4802 rc = -ENOMEM; 4803 goto out_remove_rpi_hdrs; 4804 } 4805 4806 /* 4807 * The cfg_fcp_eq_count can be zero whenever there is exactly one 4808 * interrupt vector. This is not an error 4809 */ 4810 if (phba->cfg_fcp_eq_count) { 4811 phba->sli4_hba.fcp_eq_hdl = 4812 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 4813 phba->cfg_fcp_eq_count), GFP_KERNEL); 4814 if (!phba->sli4_hba.fcp_eq_hdl) { 4815 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4816 "2572 Failed allocate memory for " 4817 "fast-path per-EQ handle array\n"); 4818 rc = -ENOMEM; 4819 goto out_free_fcf_rr_bmask; 4820 } 4821 } 4822 4823 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 4824 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 4825 if (!phba->sli4_hba.msix_entries) { 4826 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4827 "2573 Failed allocate memory for msi-x " 4828 "interrupt vector entries\n"); 4829 rc = -ENOMEM; 4830 goto out_free_fcp_eq_hdl; 4831 } 4832 4833 /* 4834 * Enable sr-iov virtual functions if supported and configured 4835 * through the module parameter. 4836 */ 4837 if (phba->cfg_sriov_nr_virtfn > 0) { 4838 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4839 phba->cfg_sriov_nr_virtfn); 4840 if (rc) { 4841 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4842 "3020 Requested number of SR-IOV " 4843 "virtual functions (%d) is not " 4844 "supported\n", 4845 phba->cfg_sriov_nr_virtfn); 4846 phba->cfg_sriov_nr_virtfn = 0; 4847 } 4848 } 4849 4850 return 0; 4851 4852 out_free_fcp_eq_hdl: 4853 kfree(phba->sli4_hba.fcp_eq_hdl); 4854 out_free_fcf_rr_bmask: 4855 kfree(phba->fcf.fcf_rr_bmask); 4856 out_remove_rpi_hdrs: 4857 lpfc_sli4_remove_rpi_hdrs(phba); 4858 out_free_active_sgl: 4859 lpfc_free_active_sgl(phba); 4860 out_destroy_cq_event_pool: 4861 lpfc_sli4_cq_event_pool_destroy(phba); 4862 out_free_bsmbx: 4863 lpfc_destroy_bootstrap_mbox(phba); 4864 out_free_mem: 4865 lpfc_mem_free(phba); 4866 return rc; 4867 } 4868 4869 /** 4870 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 4871 * @phba: pointer to lpfc hba data structure. 4872 * 4873 * This routine is invoked to unset the driver internal resources set up 4874 * specific for supporting the SLI-4 HBA device it attached to. 4875 **/ 4876 static void 4877 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 4878 { 4879 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4880 4881 /* Free memory allocated for msi-x interrupt vector entries */ 4882 kfree(phba->sli4_hba.msix_entries); 4883 4884 /* Free memory allocated for fast-path work queue handles */ 4885 kfree(phba->sli4_hba.fcp_eq_hdl); 4886 4887 /* Free the allocated rpi headers. */ 4888 lpfc_sli4_remove_rpi_hdrs(phba); 4889 lpfc_sli4_remove_rpis(phba); 4890 4891 /* Free eligible FCF index bmask */ 4892 kfree(phba->fcf.fcf_rr_bmask); 4893 4894 /* Free the ELS sgl list */ 4895 lpfc_free_active_sgl(phba); 4896 lpfc_free_els_sgl_list(phba); 4897 4898 /* Free the completion queue EQ event pool */ 4899 lpfc_sli4_cq_event_release_all(phba); 4900 lpfc_sli4_cq_event_pool_destroy(phba); 4901 4902 /* Release resource identifiers. */ 4903 lpfc_sli4_dealloc_resource_identifiers(phba); 4904 4905 /* Free the bsmbx region. */ 4906 lpfc_destroy_bootstrap_mbox(phba); 4907 4908 /* Free the SLI Layer memory with SLI4 HBAs */ 4909 lpfc_mem_free_all(phba); 4910 4911 /* Free the current connect table */ 4912 list_for_each_entry_safe(conn_entry, next_conn_entry, 4913 &phba->fcf_conn_rec_list, list) { 4914 list_del_init(&conn_entry->list); 4915 kfree(conn_entry); 4916 } 4917 4918 return; 4919 } 4920 4921 /** 4922 * lpfc_init_api_table_setup - Set up init api function jump table 4923 * @phba: The hba struct for which this call is being executed. 4924 * @dev_grp: The HBA PCI-Device group number. 4925 * 4926 * This routine sets up the device INIT interface API function jump table 4927 * in @phba struct. 4928 * 4929 * Returns: 0 - success, -ENODEV - failure. 4930 **/ 4931 int 4932 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4933 { 4934 phba->lpfc_hba_init_link = lpfc_hba_init_link; 4935 phba->lpfc_hba_down_link = lpfc_hba_down_link; 4936 phba->lpfc_selective_reset = lpfc_selective_reset; 4937 switch (dev_grp) { 4938 case LPFC_PCI_DEV_LP: 4939 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 4940 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 4941 phba->lpfc_stop_port = lpfc_stop_port_s3; 4942 break; 4943 case LPFC_PCI_DEV_OC: 4944 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 4945 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 4946 phba->lpfc_stop_port = lpfc_stop_port_s4; 4947 break; 4948 default: 4949 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4950 "1431 Invalid HBA PCI-device group: 0x%x\n", 4951 dev_grp); 4952 return -ENODEV; 4953 break; 4954 } 4955 return 0; 4956 } 4957 4958 /** 4959 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 4960 * @phba: pointer to lpfc hba data structure. 4961 * 4962 * This routine is invoked to set up the driver internal resources before the 4963 * device specific resource setup to support the HBA device it attached to. 4964 * 4965 * Return codes 4966 * 0 - successful 4967 * other values - error 4968 **/ 4969 static int 4970 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 4971 { 4972 /* 4973 * Driver resources common to all SLI revisions 4974 */ 4975 atomic_set(&phba->fast_event_count, 0); 4976 spin_lock_init(&phba->hbalock); 4977 4978 /* Initialize ndlp management spinlock */ 4979 spin_lock_init(&phba->ndlp_lock); 4980 4981 INIT_LIST_HEAD(&phba->port_list); 4982 INIT_LIST_HEAD(&phba->work_list); 4983 init_waitqueue_head(&phba->wait_4_mlo_m_q); 4984 4985 /* Initialize the wait queue head for the kernel thread */ 4986 init_waitqueue_head(&phba->work_waitq); 4987 4988 /* Initialize the scsi buffer list used by driver for scsi IO */ 4989 spin_lock_init(&phba->scsi_buf_list_lock); 4990 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 4991 4992 /* Initialize the fabric iocb list */ 4993 INIT_LIST_HEAD(&phba->fabric_iocb_list); 4994 4995 /* Initialize list to save ELS buffers */ 4996 INIT_LIST_HEAD(&phba->elsbuf); 4997 4998 /* Initialize FCF connection rec list */ 4999 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5000 5001 return 0; 5002 } 5003 5004 /** 5005 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 5006 * @phba: pointer to lpfc hba data structure. 5007 * 5008 * This routine is invoked to set up the driver internal resources after the 5009 * device specific resource setup to support the HBA device it attached to. 5010 * 5011 * Return codes 5012 * 0 - successful 5013 * other values - error 5014 **/ 5015 static int 5016 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 5017 { 5018 int error; 5019 5020 /* Startup the kernel thread for this host adapter. */ 5021 phba->worker_thread = kthread_run(lpfc_do_work, phba, 5022 "lpfc_worker_%d", phba->brd_no); 5023 if (IS_ERR(phba->worker_thread)) { 5024 error = PTR_ERR(phba->worker_thread); 5025 return error; 5026 } 5027 5028 return 0; 5029 } 5030 5031 /** 5032 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 5033 * @phba: pointer to lpfc hba data structure. 5034 * 5035 * This routine is invoked to unset the driver internal resources set up after 5036 * the device specific resource setup for supporting the HBA device it 5037 * attached to. 5038 **/ 5039 static void 5040 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 5041 { 5042 /* Stop kernel worker thread */ 5043 kthread_stop(phba->worker_thread); 5044 } 5045 5046 /** 5047 * lpfc_free_iocb_list - Free iocb list. 5048 * @phba: pointer to lpfc hba data structure. 5049 * 5050 * This routine is invoked to free the driver's IOCB list and memory. 5051 **/ 5052 static void 5053 lpfc_free_iocb_list(struct lpfc_hba *phba) 5054 { 5055 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 5056 5057 spin_lock_irq(&phba->hbalock); 5058 list_for_each_entry_safe(iocbq_entry, iocbq_next, 5059 &phba->lpfc_iocb_list, list) { 5060 list_del(&iocbq_entry->list); 5061 kfree(iocbq_entry); 5062 phba->total_iocbq_bufs--; 5063 } 5064 spin_unlock_irq(&phba->hbalock); 5065 5066 return; 5067 } 5068 5069 /** 5070 * lpfc_init_iocb_list - Allocate and initialize iocb list. 5071 * @phba: pointer to lpfc hba data structure. 5072 * 5073 * This routine is invoked to allocate and initizlize the driver's IOCB 5074 * list and set up the IOCB tag array accordingly. 5075 * 5076 * Return codes 5077 * 0 - successful 5078 * other values - error 5079 **/ 5080 static int 5081 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 5082 { 5083 struct lpfc_iocbq *iocbq_entry = NULL; 5084 uint16_t iotag; 5085 int i; 5086 5087 /* Initialize and populate the iocb list per host. */ 5088 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 5089 for (i = 0; i < iocb_count; i++) { 5090 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 5091 if (iocbq_entry == NULL) { 5092 printk(KERN_ERR "%s: only allocated %d iocbs of " 5093 "expected %d count. Unloading driver.\n", 5094 __func__, i, LPFC_IOCB_LIST_CNT); 5095 goto out_free_iocbq; 5096 } 5097 5098 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 5099 if (iotag == 0) { 5100 kfree(iocbq_entry); 5101 printk(KERN_ERR "%s: failed to allocate IOTAG. " 5102 "Unloading driver.\n", __func__); 5103 goto out_free_iocbq; 5104 } 5105 iocbq_entry->sli4_lxritag = NO_XRI; 5106 iocbq_entry->sli4_xritag = NO_XRI; 5107 5108 spin_lock_irq(&phba->hbalock); 5109 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 5110 phba->total_iocbq_bufs++; 5111 spin_unlock_irq(&phba->hbalock); 5112 } 5113 5114 return 0; 5115 5116 out_free_iocbq: 5117 lpfc_free_iocb_list(phba); 5118 5119 return -ENOMEM; 5120 } 5121 5122 /** 5123 * lpfc_free_sgl_list - Free a given sgl list. 5124 * @phba: pointer to lpfc hba data structure. 5125 * @sglq_list: pointer to the head of sgl list. 5126 * 5127 * This routine is invoked to free a give sgl list and memory. 5128 **/ 5129 void 5130 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 5131 { 5132 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 5133 5134 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 5135 list_del(&sglq_entry->list); 5136 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 5137 kfree(sglq_entry); 5138 } 5139 } 5140 5141 /** 5142 * lpfc_free_els_sgl_list - Free els sgl list. 5143 * @phba: pointer to lpfc hba data structure. 5144 * 5145 * This routine is invoked to free the driver's els sgl list and memory. 5146 **/ 5147 static void 5148 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 5149 { 5150 LIST_HEAD(sglq_list); 5151 5152 /* Retrieve all els sgls from driver list */ 5153 spin_lock_irq(&phba->hbalock); 5154 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 5155 spin_unlock_irq(&phba->hbalock); 5156 5157 /* Now free the sgl list */ 5158 lpfc_free_sgl_list(phba, &sglq_list); 5159 } 5160 5161 /** 5162 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 5163 * @phba: pointer to lpfc hba data structure. 5164 * 5165 * This routine is invoked to allocate the driver's active sgl memory. 5166 * This array will hold the sglq_entry's for active IOs. 5167 **/ 5168 static int 5169 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 5170 { 5171 int size; 5172 size = sizeof(struct lpfc_sglq *); 5173 size *= phba->sli4_hba.max_cfg_param.max_xri; 5174 5175 phba->sli4_hba.lpfc_sglq_active_list = 5176 kzalloc(size, GFP_KERNEL); 5177 if (!phba->sli4_hba.lpfc_sglq_active_list) 5178 return -ENOMEM; 5179 return 0; 5180 } 5181 5182 /** 5183 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 5184 * @phba: pointer to lpfc hba data structure. 5185 * 5186 * This routine is invoked to walk through the array of active sglq entries 5187 * and free all of the resources. 5188 * This is just a place holder for now. 5189 **/ 5190 static void 5191 lpfc_free_active_sgl(struct lpfc_hba *phba) 5192 { 5193 kfree(phba->sli4_hba.lpfc_sglq_active_list); 5194 } 5195 5196 /** 5197 * lpfc_init_sgl_list - Allocate and initialize sgl list. 5198 * @phba: pointer to lpfc hba data structure. 5199 * 5200 * This routine is invoked to allocate and initizlize the driver's sgl 5201 * list and set up the sgl xritag tag array accordingly. 5202 * 5203 **/ 5204 static void 5205 lpfc_init_sgl_list(struct lpfc_hba *phba) 5206 { 5207 /* Initialize and populate the sglq list per host/VF. */ 5208 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 5209 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 5210 5211 /* els xri-sgl book keeping */ 5212 phba->sli4_hba.els_xri_cnt = 0; 5213 5214 /* scsi xri-buffer book keeping */ 5215 phba->sli4_hba.scsi_xri_cnt = 0; 5216 } 5217 5218 /** 5219 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 5220 * @phba: pointer to lpfc hba data structure. 5221 * 5222 * This routine is invoked to post rpi header templates to the 5223 * port for those SLI4 ports that do not support extents. This routine 5224 * posts a PAGE_SIZE memory region to the port to hold up to 5225 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 5226 * and should be called only when interrupts are disabled. 5227 * 5228 * Return codes 5229 * 0 - successful 5230 * -ERROR - otherwise. 5231 **/ 5232 int 5233 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 5234 { 5235 int rc = 0; 5236 struct lpfc_rpi_hdr *rpi_hdr; 5237 5238 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 5239 if (!phba->sli4_hba.rpi_hdrs_in_use) 5240 return rc; 5241 if (phba->sli4_hba.extents_in_use) 5242 return -EIO; 5243 5244 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 5245 if (!rpi_hdr) { 5246 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 5247 "0391 Error during rpi post operation\n"); 5248 lpfc_sli4_remove_rpis(phba); 5249 rc = -ENODEV; 5250 } 5251 5252 return rc; 5253 } 5254 5255 /** 5256 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 5257 * @phba: pointer to lpfc hba data structure. 5258 * 5259 * This routine is invoked to allocate a single 4KB memory region to 5260 * support rpis and stores them in the phba. This single region 5261 * provides support for up to 64 rpis. The region is used globally 5262 * by the device. 5263 * 5264 * Returns: 5265 * A valid rpi hdr on success. 5266 * A NULL pointer on any failure. 5267 **/ 5268 struct lpfc_rpi_hdr * 5269 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 5270 { 5271 uint16_t rpi_limit, curr_rpi_range; 5272 struct lpfc_dmabuf *dmabuf; 5273 struct lpfc_rpi_hdr *rpi_hdr; 5274 uint32_t rpi_count; 5275 5276 /* 5277 * If the SLI4 port supports extents, posting the rpi header isn't 5278 * required. Set the expected maximum count and let the actual value 5279 * get set when extents are fully allocated. 5280 */ 5281 if (!phba->sli4_hba.rpi_hdrs_in_use) 5282 return NULL; 5283 if (phba->sli4_hba.extents_in_use) 5284 return NULL; 5285 5286 /* The limit on the logical index is just the max_rpi count. */ 5287 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 5288 phba->sli4_hba.max_cfg_param.max_rpi - 1; 5289 5290 spin_lock_irq(&phba->hbalock); 5291 /* 5292 * Establish the starting RPI in this header block. The starting 5293 * rpi is normalized to a zero base because the physical rpi is 5294 * port based. 5295 */ 5296 curr_rpi_range = phba->sli4_hba.next_rpi; 5297 spin_unlock_irq(&phba->hbalock); 5298 5299 /* 5300 * The port has a limited number of rpis. The increment here 5301 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 5302 * and to allow the full max_rpi range per port. 5303 */ 5304 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 5305 rpi_count = rpi_limit - curr_rpi_range; 5306 else 5307 rpi_count = LPFC_RPI_HDR_COUNT; 5308 5309 if (!rpi_count) 5310 return NULL; 5311 /* 5312 * First allocate the protocol header region for the port. The 5313 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 5314 */ 5315 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5316 if (!dmabuf) 5317 return NULL; 5318 5319 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5320 LPFC_HDR_TEMPLATE_SIZE, 5321 &dmabuf->phys, 5322 GFP_KERNEL); 5323 if (!dmabuf->virt) { 5324 rpi_hdr = NULL; 5325 goto err_free_dmabuf; 5326 } 5327 5328 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 5329 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 5330 rpi_hdr = NULL; 5331 goto err_free_coherent; 5332 } 5333 5334 /* Save the rpi header data for cleanup later. */ 5335 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 5336 if (!rpi_hdr) 5337 goto err_free_coherent; 5338 5339 rpi_hdr->dmabuf = dmabuf; 5340 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 5341 rpi_hdr->page_count = 1; 5342 spin_lock_irq(&phba->hbalock); 5343 5344 /* The rpi_hdr stores the logical index only. */ 5345 rpi_hdr->start_rpi = curr_rpi_range; 5346 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 5347 5348 /* 5349 * The next_rpi stores the next logical module-64 rpi value used 5350 * to post physical rpis in subsequent rpi postings. 5351 */ 5352 phba->sli4_hba.next_rpi += rpi_count; 5353 spin_unlock_irq(&phba->hbalock); 5354 return rpi_hdr; 5355 5356 err_free_coherent: 5357 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 5358 dmabuf->virt, dmabuf->phys); 5359 err_free_dmabuf: 5360 kfree(dmabuf); 5361 return NULL; 5362 } 5363 5364 /** 5365 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 5366 * @phba: pointer to lpfc hba data structure. 5367 * 5368 * This routine is invoked to remove all memory resources allocated 5369 * to support rpis for SLI4 ports not supporting extents. This routine 5370 * presumes the caller has released all rpis consumed by fabric or port 5371 * logins and is prepared to have the header pages removed. 5372 **/ 5373 void 5374 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 5375 { 5376 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 5377 5378 if (!phba->sli4_hba.rpi_hdrs_in_use) 5379 goto exit; 5380 5381 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 5382 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 5383 list_del(&rpi_hdr->list); 5384 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 5385 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 5386 kfree(rpi_hdr->dmabuf); 5387 kfree(rpi_hdr); 5388 } 5389 exit: 5390 /* There are no rpis available to the port now. */ 5391 phba->sli4_hba.next_rpi = 0; 5392 } 5393 5394 /** 5395 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 5396 * @pdev: pointer to pci device data structure. 5397 * 5398 * This routine is invoked to allocate the driver hba data structure for an 5399 * HBA device. If the allocation is successful, the phba reference to the 5400 * PCI device data structure is set. 5401 * 5402 * Return codes 5403 * pointer to @phba - successful 5404 * NULL - error 5405 **/ 5406 static struct lpfc_hba * 5407 lpfc_hba_alloc(struct pci_dev *pdev) 5408 { 5409 struct lpfc_hba *phba; 5410 5411 /* Allocate memory for HBA structure */ 5412 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 5413 if (!phba) { 5414 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 5415 return NULL; 5416 } 5417 5418 /* Set reference to PCI device in HBA structure */ 5419 phba->pcidev = pdev; 5420 5421 /* Assign an unused board number */ 5422 phba->brd_no = lpfc_get_instance(); 5423 if (phba->brd_no < 0) { 5424 kfree(phba); 5425 return NULL; 5426 } 5427 5428 spin_lock_init(&phba->ct_ev_lock); 5429 INIT_LIST_HEAD(&phba->ct_ev_waiters); 5430 5431 return phba; 5432 } 5433 5434 /** 5435 * lpfc_hba_free - Free driver hba data structure with a device. 5436 * @phba: pointer to lpfc hba data structure. 5437 * 5438 * This routine is invoked to free the driver hba data structure with an 5439 * HBA device. 5440 **/ 5441 static void 5442 lpfc_hba_free(struct lpfc_hba *phba) 5443 { 5444 /* Release the driver assigned board number */ 5445 idr_remove(&lpfc_hba_index, phba->brd_no); 5446 5447 kfree(phba); 5448 return; 5449 } 5450 5451 /** 5452 * lpfc_create_shost - Create hba physical port with associated scsi host. 5453 * @phba: pointer to lpfc hba data structure. 5454 * 5455 * This routine is invoked to create HBA physical port and associate a SCSI 5456 * host with it. 5457 * 5458 * Return codes 5459 * 0 - successful 5460 * other values - error 5461 **/ 5462 static int 5463 lpfc_create_shost(struct lpfc_hba *phba) 5464 { 5465 struct lpfc_vport *vport; 5466 struct Scsi_Host *shost; 5467 5468 /* Initialize HBA FC structure */ 5469 phba->fc_edtov = FF_DEF_EDTOV; 5470 phba->fc_ratov = FF_DEF_RATOV; 5471 phba->fc_altov = FF_DEF_ALTOV; 5472 phba->fc_arbtov = FF_DEF_ARBTOV; 5473 5474 atomic_set(&phba->sdev_cnt, 0); 5475 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 5476 if (!vport) 5477 return -ENODEV; 5478 5479 shost = lpfc_shost_from_vport(vport); 5480 phba->pport = vport; 5481 lpfc_debugfs_initialize(vport); 5482 /* Put reference to SCSI host to driver's device private data */ 5483 pci_set_drvdata(phba->pcidev, shost); 5484 5485 return 0; 5486 } 5487 5488 /** 5489 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 5490 * @phba: pointer to lpfc hba data structure. 5491 * 5492 * This routine is invoked to destroy HBA physical port and the associated 5493 * SCSI host. 5494 **/ 5495 static void 5496 lpfc_destroy_shost(struct lpfc_hba *phba) 5497 { 5498 struct lpfc_vport *vport = phba->pport; 5499 5500 /* Destroy physical port that associated with the SCSI host */ 5501 destroy_port(vport); 5502 5503 return; 5504 } 5505 5506 /** 5507 * lpfc_setup_bg - Setup Block guard structures and debug areas. 5508 * @phba: pointer to lpfc hba data structure. 5509 * @shost: the shost to be used to detect Block guard settings. 5510 * 5511 * This routine sets up the local Block guard protocol settings for @shost. 5512 * This routine also allocates memory for debugging bg buffers. 5513 **/ 5514 static void 5515 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 5516 { 5517 int pagecnt = 10; 5518 if (lpfc_prot_mask && lpfc_prot_guard) { 5519 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5520 "1478 Registering BlockGuard with the " 5521 "SCSI layer\n"); 5522 scsi_host_set_prot(shost, lpfc_prot_mask); 5523 scsi_host_set_guard(shost, lpfc_prot_guard); 5524 } 5525 if (!_dump_buf_data) { 5526 while (pagecnt) { 5527 spin_lock_init(&_dump_buf_lock); 5528 _dump_buf_data = 5529 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5530 if (_dump_buf_data) { 5531 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5532 "9043 BLKGRD: allocated %d pages for " 5533 "_dump_buf_data at 0x%p\n", 5534 (1 << pagecnt), _dump_buf_data); 5535 _dump_buf_data_order = pagecnt; 5536 memset(_dump_buf_data, 0, 5537 ((1 << PAGE_SHIFT) << pagecnt)); 5538 break; 5539 } else 5540 --pagecnt; 5541 } 5542 if (!_dump_buf_data_order) 5543 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5544 "9044 BLKGRD: ERROR unable to allocate " 5545 "memory for hexdump\n"); 5546 } else 5547 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5548 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 5549 "\n", _dump_buf_data); 5550 if (!_dump_buf_dif) { 5551 while (pagecnt) { 5552 _dump_buf_dif = 5553 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5554 if (_dump_buf_dif) { 5555 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5556 "9046 BLKGRD: allocated %d pages for " 5557 "_dump_buf_dif at 0x%p\n", 5558 (1 << pagecnt), _dump_buf_dif); 5559 _dump_buf_dif_order = pagecnt; 5560 memset(_dump_buf_dif, 0, 5561 ((1 << PAGE_SHIFT) << pagecnt)); 5562 break; 5563 } else 5564 --pagecnt; 5565 } 5566 if (!_dump_buf_dif_order) 5567 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5568 "9047 BLKGRD: ERROR unable to allocate " 5569 "memory for hexdump\n"); 5570 } else 5571 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5572 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 5573 _dump_buf_dif); 5574 } 5575 5576 /** 5577 * lpfc_post_init_setup - Perform necessary device post initialization setup. 5578 * @phba: pointer to lpfc hba data structure. 5579 * 5580 * This routine is invoked to perform all the necessary post initialization 5581 * setup for the device. 5582 **/ 5583 static void 5584 lpfc_post_init_setup(struct lpfc_hba *phba) 5585 { 5586 struct Scsi_Host *shost; 5587 struct lpfc_adapter_event_header adapter_event; 5588 5589 /* Get the default values for Model Name and Description */ 5590 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5591 5592 /* 5593 * hba setup may have changed the hba_queue_depth so we need to 5594 * adjust the value of can_queue. 5595 */ 5596 shost = pci_get_drvdata(phba->pcidev); 5597 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5598 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5599 lpfc_setup_bg(phba, shost); 5600 5601 lpfc_host_attrib_init(shost); 5602 5603 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5604 spin_lock_irq(shost->host_lock); 5605 lpfc_poll_start_timer(phba); 5606 spin_unlock_irq(shost->host_lock); 5607 } 5608 5609 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5610 "0428 Perform SCSI scan\n"); 5611 /* Send board arrival event to upper layer */ 5612 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5613 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5614 fc_host_post_vendor_event(shost, fc_get_event_number(), 5615 sizeof(adapter_event), 5616 (char *) &adapter_event, 5617 LPFC_NL_VENDOR_ID); 5618 return; 5619 } 5620 5621 /** 5622 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5623 * @phba: pointer to lpfc hba data structure. 5624 * 5625 * This routine is invoked to set up the PCI device memory space for device 5626 * with SLI-3 interface spec. 5627 * 5628 * Return codes 5629 * 0 - successful 5630 * other values - error 5631 **/ 5632 static int 5633 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5634 { 5635 struct pci_dev *pdev; 5636 unsigned long bar0map_len, bar2map_len; 5637 int i, hbq_count; 5638 void *ptr; 5639 int error = -ENODEV; 5640 5641 /* Obtain PCI device reference */ 5642 if (!phba->pcidev) 5643 return error; 5644 else 5645 pdev = phba->pcidev; 5646 5647 /* Set the device DMA mask size */ 5648 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5649 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5650 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5651 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5652 return error; 5653 } 5654 } 5655 5656 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5657 * required by each mapping. 5658 */ 5659 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5660 bar0map_len = pci_resource_len(pdev, 0); 5661 5662 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5663 bar2map_len = pci_resource_len(pdev, 2); 5664 5665 /* Map HBA SLIM to a kernel virtual address. */ 5666 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5667 if (!phba->slim_memmap_p) { 5668 dev_printk(KERN_ERR, &pdev->dev, 5669 "ioremap failed for SLIM memory.\n"); 5670 goto out; 5671 } 5672 5673 /* Map HBA Control Registers to a kernel virtual address. */ 5674 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5675 if (!phba->ctrl_regs_memmap_p) { 5676 dev_printk(KERN_ERR, &pdev->dev, 5677 "ioremap failed for HBA control registers.\n"); 5678 goto out_iounmap_slim; 5679 } 5680 5681 /* Allocate memory for SLI-2 structures */ 5682 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5683 SLI2_SLIM_SIZE, 5684 &phba->slim2p.phys, 5685 GFP_KERNEL); 5686 if (!phba->slim2p.virt) 5687 goto out_iounmap; 5688 5689 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5690 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5691 phba->mbox_ext = (phba->slim2p.virt + 5692 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5693 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5694 phba->IOCBs = (phba->slim2p.virt + 5695 offsetof(struct lpfc_sli2_slim, IOCBs)); 5696 5697 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5698 lpfc_sli_hbq_size(), 5699 &phba->hbqslimp.phys, 5700 GFP_KERNEL); 5701 if (!phba->hbqslimp.virt) 5702 goto out_free_slim; 5703 5704 hbq_count = lpfc_sli_hbq_count(); 5705 ptr = phba->hbqslimp.virt; 5706 for (i = 0; i < hbq_count; ++i) { 5707 phba->hbqs[i].hbq_virt = ptr; 5708 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5709 ptr += (lpfc_hbq_defs[i]->entry_count * 5710 sizeof(struct lpfc_hbq_entry)); 5711 } 5712 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5713 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5714 5715 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5716 5717 INIT_LIST_HEAD(&phba->rb_pend_list); 5718 5719 phba->MBslimaddr = phba->slim_memmap_p; 5720 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 5721 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 5722 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 5723 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 5724 5725 return 0; 5726 5727 out_free_slim: 5728 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5729 phba->slim2p.virt, phba->slim2p.phys); 5730 out_iounmap: 5731 iounmap(phba->ctrl_regs_memmap_p); 5732 out_iounmap_slim: 5733 iounmap(phba->slim_memmap_p); 5734 out: 5735 return error; 5736 } 5737 5738 /** 5739 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 5740 * @phba: pointer to lpfc hba data structure. 5741 * 5742 * This routine is invoked to unset the PCI device memory space for device 5743 * with SLI-3 interface spec. 5744 **/ 5745 static void 5746 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 5747 { 5748 struct pci_dev *pdev; 5749 5750 /* Obtain PCI device reference */ 5751 if (!phba->pcidev) 5752 return; 5753 else 5754 pdev = phba->pcidev; 5755 5756 /* Free coherent DMA memory allocated */ 5757 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 5758 phba->hbqslimp.virt, phba->hbqslimp.phys); 5759 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5760 phba->slim2p.virt, phba->slim2p.phys); 5761 5762 /* I/O memory unmap */ 5763 iounmap(phba->ctrl_regs_memmap_p); 5764 iounmap(phba->slim_memmap_p); 5765 5766 return; 5767 } 5768 5769 /** 5770 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 5771 * @phba: pointer to lpfc hba data structure. 5772 * 5773 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 5774 * done and check status. 5775 * 5776 * Return 0 if successful, otherwise -ENODEV. 5777 **/ 5778 int 5779 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 5780 { 5781 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 5782 struct lpfc_register reg_data; 5783 int i, port_error = 0; 5784 uint32_t if_type; 5785 5786 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 5787 memset(®_data, 0, sizeof(reg_data)); 5788 if (!phba->sli4_hba.PSMPHRregaddr) 5789 return -ENODEV; 5790 5791 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 5792 for (i = 0; i < 3000; i++) { 5793 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 5794 &portsmphr_reg.word0) || 5795 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 5796 /* Port has a fatal POST error, break out */ 5797 port_error = -ENODEV; 5798 break; 5799 } 5800 if (LPFC_POST_STAGE_PORT_READY == 5801 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 5802 break; 5803 msleep(10); 5804 } 5805 5806 /* 5807 * If there was a port error during POST, then don't proceed with 5808 * other register reads as the data may not be valid. Just exit. 5809 */ 5810 if (port_error) { 5811 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5812 "1408 Port Failed POST - portsmphr=0x%x, " 5813 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 5814 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 5815 portsmphr_reg.word0, 5816 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 5817 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 5818 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 5819 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 5820 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 5821 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 5822 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 5823 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 5824 } else { 5825 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5826 "2534 Device Info: SLIFamily=0x%x, " 5827 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 5828 "SLIHint_2=0x%x, FT=0x%x\n", 5829 bf_get(lpfc_sli_intf_sli_family, 5830 &phba->sli4_hba.sli_intf), 5831 bf_get(lpfc_sli_intf_slirev, 5832 &phba->sli4_hba.sli_intf), 5833 bf_get(lpfc_sli_intf_if_type, 5834 &phba->sli4_hba.sli_intf), 5835 bf_get(lpfc_sli_intf_sli_hint1, 5836 &phba->sli4_hba.sli_intf), 5837 bf_get(lpfc_sli_intf_sli_hint2, 5838 &phba->sli4_hba.sli_intf), 5839 bf_get(lpfc_sli_intf_func_type, 5840 &phba->sli4_hba.sli_intf)); 5841 /* 5842 * Check for other Port errors during the initialization 5843 * process. Fail the load if the port did not come up 5844 * correctly. 5845 */ 5846 if_type = bf_get(lpfc_sli_intf_if_type, 5847 &phba->sli4_hba.sli_intf); 5848 switch (if_type) { 5849 case LPFC_SLI_INTF_IF_TYPE_0: 5850 phba->sli4_hba.ue_mask_lo = 5851 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 5852 phba->sli4_hba.ue_mask_hi = 5853 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 5854 uerrlo_reg.word0 = 5855 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 5856 uerrhi_reg.word0 = 5857 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 5858 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 5859 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 5860 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5861 "1422 Unrecoverable Error " 5862 "Detected during POST " 5863 "uerr_lo_reg=0x%x, " 5864 "uerr_hi_reg=0x%x, " 5865 "ue_mask_lo_reg=0x%x, " 5866 "ue_mask_hi_reg=0x%x\n", 5867 uerrlo_reg.word0, 5868 uerrhi_reg.word0, 5869 phba->sli4_hba.ue_mask_lo, 5870 phba->sli4_hba.ue_mask_hi); 5871 port_error = -ENODEV; 5872 } 5873 break; 5874 case LPFC_SLI_INTF_IF_TYPE_2: 5875 /* Final checks. The port status should be clean. */ 5876 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 5877 ®_data.word0) || 5878 (bf_get(lpfc_sliport_status_err, ®_data) && 5879 !bf_get(lpfc_sliport_status_rn, ®_data))) { 5880 phba->work_status[0] = 5881 readl(phba->sli4_hba.u.if_type2. 5882 ERR1regaddr); 5883 phba->work_status[1] = 5884 readl(phba->sli4_hba.u.if_type2. 5885 ERR2regaddr); 5886 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5887 "2888 Unrecoverable port error " 5888 "following POST: port status reg " 5889 "0x%x, port_smphr reg 0x%x, " 5890 "error 1=0x%x, error 2=0x%x\n", 5891 reg_data.word0, 5892 portsmphr_reg.word0, 5893 phba->work_status[0], 5894 phba->work_status[1]); 5895 port_error = -ENODEV; 5896 } 5897 break; 5898 case LPFC_SLI_INTF_IF_TYPE_1: 5899 default: 5900 break; 5901 } 5902 } 5903 return port_error; 5904 } 5905 5906 /** 5907 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 5908 * @phba: pointer to lpfc hba data structure. 5909 * @if_type: The SLI4 interface type getting configured. 5910 * 5911 * This routine is invoked to set up SLI4 BAR0 PCI config space register 5912 * memory map. 5913 **/ 5914 static void 5915 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 5916 { 5917 switch (if_type) { 5918 case LPFC_SLI_INTF_IF_TYPE_0: 5919 phba->sli4_hba.u.if_type0.UERRLOregaddr = 5920 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 5921 phba->sli4_hba.u.if_type0.UERRHIregaddr = 5922 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 5923 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 5924 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 5925 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 5926 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 5927 phba->sli4_hba.SLIINTFregaddr = 5928 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 5929 break; 5930 case LPFC_SLI_INTF_IF_TYPE_2: 5931 phba->sli4_hba.u.if_type2.ERR1regaddr = 5932 phba->sli4_hba.conf_regs_memmap_p + 5933 LPFC_CTL_PORT_ER1_OFFSET; 5934 phba->sli4_hba.u.if_type2.ERR2regaddr = 5935 phba->sli4_hba.conf_regs_memmap_p + 5936 LPFC_CTL_PORT_ER2_OFFSET; 5937 phba->sli4_hba.u.if_type2.CTRLregaddr = 5938 phba->sli4_hba.conf_regs_memmap_p + 5939 LPFC_CTL_PORT_CTL_OFFSET; 5940 phba->sli4_hba.u.if_type2.STATUSregaddr = 5941 phba->sli4_hba.conf_regs_memmap_p + 5942 LPFC_CTL_PORT_STA_OFFSET; 5943 phba->sli4_hba.SLIINTFregaddr = 5944 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 5945 phba->sli4_hba.PSMPHRregaddr = 5946 phba->sli4_hba.conf_regs_memmap_p + 5947 LPFC_CTL_PORT_SEM_OFFSET; 5948 phba->sli4_hba.RQDBregaddr = 5949 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL; 5950 phba->sli4_hba.WQDBregaddr = 5951 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL; 5952 phba->sli4_hba.EQCQDBregaddr = 5953 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 5954 phba->sli4_hba.MQDBregaddr = 5955 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 5956 phba->sli4_hba.BMBXregaddr = 5957 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 5958 break; 5959 case LPFC_SLI_INTF_IF_TYPE_1: 5960 default: 5961 dev_printk(KERN_ERR, &phba->pcidev->dev, 5962 "FATAL - unsupported SLI4 interface type - %d\n", 5963 if_type); 5964 break; 5965 } 5966 } 5967 5968 /** 5969 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 5970 * @phba: pointer to lpfc hba data structure. 5971 * 5972 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 5973 * memory map. 5974 **/ 5975 static void 5976 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 5977 { 5978 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5979 LPFC_SLIPORT_IF0_SMPHR; 5980 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5981 LPFC_HST_ISR0; 5982 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5983 LPFC_HST_IMR0; 5984 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5985 LPFC_HST_ISCR0; 5986 } 5987 5988 /** 5989 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 5990 * @phba: pointer to lpfc hba data structure. 5991 * @vf: virtual function number 5992 * 5993 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 5994 * based on the given viftual function number, @vf. 5995 * 5996 * Return 0 if successful, otherwise -ENODEV. 5997 **/ 5998 static int 5999 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 6000 { 6001 if (vf > LPFC_VIR_FUNC_MAX) 6002 return -ENODEV; 6003 6004 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6005 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 6006 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6007 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 6008 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6009 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 6010 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6011 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 6012 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6013 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 6014 return 0; 6015 } 6016 6017 /** 6018 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 6019 * @phba: pointer to lpfc hba data structure. 6020 * 6021 * This routine is invoked to create the bootstrap mailbox 6022 * region consistent with the SLI-4 interface spec. This 6023 * routine allocates all memory necessary to communicate 6024 * mailbox commands to the port and sets up all alignment 6025 * needs. No locks are expected to be held when calling 6026 * this routine. 6027 * 6028 * Return codes 6029 * 0 - successful 6030 * -ENOMEM - could not allocated memory. 6031 **/ 6032 static int 6033 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 6034 { 6035 uint32_t bmbx_size; 6036 struct lpfc_dmabuf *dmabuf; 6037 struct dma_address *dma_address; 6038 uint32_t pa_addr; 6039 uint64_t phys_addr; 6040 6041 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6042 if (!dmabuf) 6043 return -ENOMEM; 6044 6045 /* 6046 * The bootstrap mailbox region is comprised of 2 parts 6047 * plus an alignment restriction of 16 bytes. 6048 */ 6049 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 6050 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 6051 bmbx_size, 6052 &dmabuf->phys, 6053 GFP_KERNEL); 6054 if (!dmabuf->virt) { 6055 kfree(dmabuf); 6056 return -ENOMEM; 6057 } 6058 memset(dmabuf->virt, 0, bmbx_size); 6059 6060 /* 6061 * Initialize the bootstrap mailbox pointers now so that the register 6062 * operations are simple later. The mailbox dma address is required 6063 * to be 16-byte aligned. Also align the virtual memory as each 6064 * maibox is copied into the bmbx mailbox region before issuing the 6065 * command to the port. 6066 */ 6067 phba->sli4_hba.bmbx.dmabuf = dmabuf; 6068 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 6069 6070 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 6071 LPFC_ALIGN_16_BYTE); 6072 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 6073 LPFC_ALIGN_16_BYTE); 6074 6075 /* 6076 * Set the high and low physical addresses now. The SLI4 alignment 6077 * requirement is 16 bytes and the mailbox is posted to the port 6078 * as two 30-bit addresses. The other data is a bit marking whether 6079 * the 30-bit address is the high or low address. 6080 * Upcast bmbx aphys to 64bits so shift instruction compiles 6081 * clean on 32 bit machines. 6082 */ 6083 dma_address = &phba->sli4_hba.bmbx.dma_address; 6084 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 6085 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 6086 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 6087 LPFC_BMBX_BIT1_ADDR_HI); 6088 6089 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 6090 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 6091 LPFC_BMBX_BIT1_ADDR_LO); 6092 return 0; 6093 } 6094 6095 /** 6096 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 6097 * @phba: pointer to lpfc hba data structure. 6098 * 6099 * This routine is invoked to teardown the bootstrap mailbox 6100 * region and release all host resources. This routine requires 6101 * the caller to ensure all mailbox commands recovered, no 6102 * additional mailbox comands are sent, and interrupts are disabled 6103 * before calling this routine. 6104 * 6105 **/ 6106 static void 6107 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 6108 { 6109 dma_free_coherent(&phba->pcidev->dev, 6110 phba->sli4_hba.bmbx.bmbx_size, 6111 phba->sli4_hba.bmbx.dmabuf->virt, 6112 phba->sli4_hba.bmbx.dmabuf->phys); 6113 6114 kfree(phba->sli4_hba.bmbx.dmabuf); 6115 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 6116 } 6117 6118 /** 6119 * lpfc_sli4_read_config - Get the config parameters. 6120 * @phba: pointer to lpfc hba data structure. 6121 * 6122 * This routine is invoked to read the configuration parameters from the HBA. 6123 * The configuration parameters are used to set the base and maximum values 6124 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 6125 * allocation for the port. 6126 * 6127 * Return codes 6128 * 0 - successful 6129 * -ENOMEM - No available memory 6130 * -EIO - The mailbox failed to complete successfully. 6131 **/ 6132 int 6133 lpfc_sli4_read_config(struct lpfc_hba *phba) 6134 { 6135 LPFC_MBOXQ_t *pmb; 6136 struct lpfc_mbx_read_config *rd_config; 6137 union lpfc_sli4_cfg_shdr *shdr; 6138 uint32_t shdr_status, shdr_add_status; 6139 struct lpfc_mbx_get_func_cfg *get_func_cfg; 6140 struct lpfc_rsrc_desc_fcfcoe *desc; 6141 uint32_t desc_count; 6142 int length, i, rc = 0; 6143 6144 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6145 if (!pmb) { 6146 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6147 "2011 Unable to allocate memory for issuing " 6148 "SLI_CONFIG_SPECIAL mailbox command\n"); 6149 return -ENOMEM; 6150 } 6151 6152 lpfc_read_config(phba, pmb); 6153 6154 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6155 if (rc != MBX_SUCCESS) { 6156 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6157 "2012 Mailbox failed , mbxCmd x%x " 6158 "READ_CONFIG, mbxStatus x%x\n", 6159 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6160 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6161 rc = -EIO; 6162 } else { 6163 rd_config = &pmb->u.mqe.un.rd_config; 6164 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 6165 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 6166 phba->sli4_hba.lnk_info.lnk_tp = 6167 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 6168 phba->sli4_hba.lnk_info.lnk_no = 6169 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 6170 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6171 "3081 lnk_type:%d, lnk_numb:%d\n", 6172 phba->sli4_hba.lnk_info.lnk_tp, 6173 phba->sli4_hba.lnk_info.lnk_no); 6174 } else 6175 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 6176 "3082 Mailbox (x%x) returned ldv:x0\n", 6177 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 6178 phba->sli4_hba.extents_in_use = 6179 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 6180 phba->sli4_hba.max_cfg_param.max_xri = 6181 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 6182 phba->sli4_hba.max_cfg_param.xri_base = 6183 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 6184 phba->sli4_hba.max_cfg_param.max_vpi = 6185 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 6186 phba->sli4_hba.max_cfg_param.vpi_base = 6187 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 6188 phba->sli4_hba.max_cfg_param.max_rpi = 6189 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 6190 phba->sli4_hba.max_cfg_param.rpi_base = 6191 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 6192 phba->sli4_hba.max_cfg_param.max_vfi = 6193 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 6194 phba->sli4_hba.max_cfg_param.vfi_base = 6195 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 6196 phba->sli4_hba.max_cfg_param.max_fcfi = 6197 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 6198 phba->sli4_hba.max_cfg_param.max_eq = 6199 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 6200 phba->sli4_hba.max_cfg_param.max_rq = 6201 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 6202 phba->sli4_hba.max_cfg_param.max_wq = 6203 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 6204 phba->sli4_hba.max_cfg_param.max_cq = 6205 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 6206 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 6207 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 6208 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 6209 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 6210 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 6211 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 6212 phba->max_vports = phba->max_vpi; 6213 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6214 "2003 cfg params Extents? %d " 6215 "XRI(B:%d M:%d), " 6216 "VPI(B:%d M:%d) " 6217 "VFI(B:%d M:%d) " 6218 "RPI(B:%d M:%d) " 6219 "FCFI(Count:%d)\n", 6220 phba->sli4_hba.extents_in_use, 6221 phba->sli4_hba.max_cfg_param.xri_base, 6222 phba->sli4_hba.max_cfg_param.max_xri, 6223 phba->sli4_hba.max_cfg_param.vpi_base, 6224 phba->sli4_hba.max_cfg_param.max_vpi, 6225 phba->sli4_hba.max_cfg_param.vfi_base, 6226 phba->sli4_hba.max_cfg_param.max_vfi, 6227 phba->sli4_hba.max_cfg_param.rpi_base, 6228 phba->sli4_hba.max_cfg_param.max_rpi, 6229 phba->sli4_hba.max_cfg_param.max_fcfi); 6230 } 6231 6232 if (rc) 6233 goto read_cfg_out; 6234 6235 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 6236 if (phba->cfg_hba_queue_depth > 6237 (phba->sli4_hba.max_cfg_param.max_xri - 6238 lpfc_sli4_get_els_iocb_cnt(phba))) 6239 phba->cfg_hba_queue_depth = 6240 phba->sli4_hba.max_cfg_param.max_xri - 6241 lpfc_sli4_get_els_iocb_cnt(phba); 6242 6243 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 6244 LPFC_SLI_INTF_IF_TYPE_2) 6245 goto read_cfg_out; 6246 6247 /* get the pf# and vf# for SLI4 if_type 2 port */ 6248 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 6249 sizeof(struct lpfc_sli4_cfg_mhdr)); 6250 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 6251 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 6252 length, LPFC_SLI4_MBX_EMBED); 6253 6254 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6255 shdr = (union lpfc_sli4_cfg_shdr *) 6256 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 6257 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6258 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6259 if (rc || shdr_status || shdr_add_status) { 6260 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6261 "3026 Mailbox failed , mbxCmd x%x " 6262 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 6263 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6264 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6265 rc = -EIO; 6266 goto read_cfg_out; 6267 } 6268 6269 /* search for fc_fcoe resrouce descriptor */ 6270 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 6271 desc_count = get_func_cfg->func_cfg.rsrc_desc_count; 6272 6273 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 6274 desc = (struct lpfc_rsrc_desc_fcfcoe *) 6275 &get_func_cfg->func_cfg.desc[i]; 6276 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 6277 bf_get(lpfc_rsrc_desc_pcie_type, desc)) { 6278 phba->sli4_hba.iov.pf_number = 6279 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 6280 phba->sli4_hba.iov.vf_number = 6281 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 6282 break; 6283 } 6284 } 6285 6286 if (i < LPFC_RSRC_DESC_MAX_NUM) 6287 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6288 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 6289 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 6290 phba->sli4_hba.iov.vf_number); 6291 else { 6292 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6293 "3028 GET_FUNCTION_CONFIG: failed to find " 6294 "Resrouce Descriptor:x%x\n", 6295 LPFC_RSRC_DESC_TYPE_FCFCOE); 6296 rc = -EIO; 6297 } 6298 6299 read_cfg_out: 6300 mempool_free(pmb, phba->mbox_mem_pool); 6301 return rc; 6302 } 6303 6304 /** 6305 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 6306 * @phba: pointer to lpfc hba data structure. 6307 * 6308 * This routine is invoked to setup the port-side endian order when 6309 * the port if_type is 0. This routine has no function for other 6310 * if_types. 6311 * 6312 * Return codes 6313 * 0 - successful 6314 * -ENOMEM - No available memory 6315 * -EIO - The mailbox failed to complete successfully. 6316 **/ 6317 static int 6318 lpfc_setup_endian_order(struct lpfc_hba *phba) 6319 { 6320 LPFC_MBOXQ_t *mboxq; 6321 uint32_t if_type, rc = 0; 6322 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 6323 HOST_ENDIAN_HIGH_WORD1}; 6324 6325 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 6326 switch (if_type) { 6327 case LPFC_SLI_INTF_IF_TYPE_0: 6328 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6329 GFP_KERNEL); 6330 if (!mboxq) { 6331 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6332 "0492 Unable to allocate memory for " 6333 "issuing SLI_CONFIG_SPECIAL mailbox " 6334 "command\n"); 6335 return -ENOMEM; 6336 } 6337 6338 /* 6339 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 6340 * two words to contain special data values and no other data. 6341 */ 6342 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 6343 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 6344 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6345 if (rc != MBX_SUCCESS) { 6346 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6347 "0493 SLI_CONFIG_SPECIAL mailbox " 6348 "failed with status x%x\n", 6349 rc); 6350 rc = -EIO; 6351 } 6352 mempool_free(mboxq, phba->mbox_mem_pool); 6353 break; 6354 case LPFC_SLI_INTF_IF_TYPE_2: 6355 case LPFC_SLI_INTF_IF_TYPE_1: 6356 default: 6357 break; 6358 } 6359 return rc; 6360 } 6361 6362 /** 6363 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts 6364 * @phba: pointer to lpfc hba data structure. 6365 * 6366 * This routine is invoked to check the user settable queue counts for EQs and 6367 * CQs. after this routine is called the counts will be set to valid values that 6368 * adhere to the constraints of the system's interrupt vectors and the port's 6369 * queue resources. 6370 * 6371 * Return codes 6372 * 0 - successful 6373 * -ENOMEM - No available memory 6374 **/ 6375 static int 6376 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 6377 { 6378 int cfg_fcp_wq_count; 6379 int cfg_fcp_eq_count; 6380 6381 /* 6382 * Sanity check for confiugred queue parameters against the run-time 6383 * device parameters 6384 */ 6385 6386 /* Sanity check on FCP fast-path WQ parameters */ 6387 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 6388 if (cfg_fcp_wq_count > 6389 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 6390 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 6391 LPFC_SP_WQN_DEF; 6392 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 6393 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6394 "2581 Not enough WQs (%d) from " 6395 "the pci function for supporting " 6396 "FCP WQs (%d)\n", 6397 phba->sli4_hba.max_cfg_param.max_wq, 6398 phba->cfg_fcp_wq_count); 6399 goto out_error; 6400 } 6401 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6402 "2582 Not enough WQs (%d) from the pci " 6403 "function for supporting the requested " 6404 "FCP WQs (%d), the actual FCP WQs can " 6405 "be supported: %d\n", 6406 phba->sli4_hba.max_cfg_param.max_wq, 6407 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 6408 } 6409 /* The actual number of FCP work queues adopted */ 6410 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 6411 6412 /* Sanity check on FCP fast-path EQ parameters */ 6413 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 6414 if (cfg_fcp_eq_count > 6415 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 6416 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 6417 LPFC_SP_EQN_DEF; 6418 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 6419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6420 "2574 Not enough EQs (%d) from the " 6421 "pci function for supporting FCP " 6422 "EQs (%d)\n", 6423 phba->sli4_hba.max_cfg_param.max_eq, 6424 phba->cfg_fcp_eq_count); 6425 goto out_error; 6426 } 6427 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6428 "2575 Not enough EQs (%d) from the pci " 6429 "function for supporting the requested " 6430 "FCP EQs (%d), the actual FCP EQs can " 6431 "be supported: %d\n", 6432 phba->sli4_hba.max_cfg_param.max_eq, 6433 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 6434 } 6435 /* It does not make sense to have more EQs than WQs */ 6436 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 6437 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6438 "2593 The FCP EQ count(%d) cannot be greater " 6439 "than the FCP WQ count(%d), limiting the " 6440 "FCP EQ count to %d\n", cfg_fcp_eq_count, 6441 phba->cfg_fcp_wq_count, 6442 phba->cfg_fcp_wq_count); 6443 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 6444 } 6445 /* The actual number of FCP event queues adopted */ 6446 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 6447 /* The overall number of event queues used */ 6448 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 6449 6450 /* Get EQ depth from module parameter, fake the default for now */ 6451 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 6452 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 6453 6454 /* Get CQ depth from module parameter, fake the default for now */ 6455 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 6456 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 6457 6458 return 0; 6459 out_error: 6460 return -ENOMEM; 6461 } 6462 6463 /** 6464 * lpfc_sli4_queue_create - Create all the SLI4 queues 6465 * @phba: pointer to lpfc hba data structure. 6466 * 6467 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 6468 * operation. For each SLI4 queue type, the parameters such as queue entry 6469 * count (queue depth) shall be taken from the module parameter. For now, 6470 * we just use some constant number as place holder. 6471 * 6472 * Return codes 6473 * 0 - sucessful 6474 * -ENOMEM - No availble memory 6475 * -EIO - The mailbox failed to complete successfully. 6476 **/ 6477 int 6478 lpfc_sli4_queue_create(struct lpfc_hba *phba) 6479 { 6480 struct lpfc_queue *qdesc; 6481 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6482 6483 /* 6484 * Create Event Queues (EQs) 6485 */ 6486 6487 /* Create slow path event queue */ 6488 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6489 phba->sli4_hba.eq_ecount); 6490 if (!qdesc) { 6491 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6492 "0496 Failed allocate slow-path EQ\n"); 6493 goto out_error; 6494 } 6495 phba->sli4_hba.sp_eq = qdesc; 6496 6497 /* 6498 * Create fast-path FCP Event Queue(s). The cfg_fcp_eq_count can be 6499 * zero whenever there is exactly one interrupt vector. This is not 6500 * an error. 6501 */ 6502 if (phba->cfg_fcp_eq_count) { 6503 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 6504 phba->cfg_fcp_eq_count), GFP_KERNEL); 6505 if (!phba->sli4_hba.fp_eq) { 6506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6507 "2576 Failed allocate memory for " 6508 "fast-path EQ record array\n"); 6509 goto out_free_sp_eq; 6510 } 6511 } 6512 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6513 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6514 phba->sli4_hba.eq_ecount); 6515 if (!qdesc) { 6516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6517 "0497 Failed allocate fast-path EQ\n"); 6518 goto out_free_fp_eq; 6519 } 6520 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 6521 } 6522 6523 /* 6524 * Create Complete Queues (CQs) 6525 */ 6526 6527 /* Create slow-path Mailbox Command Complete Queue */ 6528 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6529 phba->sli4_hba.cq_ecount); 6530 if (!qdesc) { 6531 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6532 "0500 Failed allocate slow-path mailbox CQ\n"); 6533 goto out_free_fp_eq; 6534 } 6535 phba->sli4_hba.mbx_cq = qdesc; 6536 6537 /* Create slow-path ELS Complete Queue */ 6538 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6539 phba->sli4_hba.cq_ecount); 6540 if (!qdesc) { 6541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6542 "0501 Failed allocate slow-path ELS CQ\n"); 6543 goto out_free_mbx_cq; 6544 } 6545 phba->sli4_hba.els_cq = qdesc; 6546 6547 6548 /* 6549 * Create fast-path FCP Completion Queue(s), one-to-one with FCP EQs. 6550 * If there are no FCP EQs then create exactly one FCP CQ. 6551 */ 6552 if (phba->cfg_fcp_eq_count) 6553 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 6554 phba->cfg_fcp_eq_count), 6555 GFP_KERNEL); 6556 else 6557 phba->sli4_hba.fcp_cq = kzalloc(sizeof(struct lpfc_queue *), 6558 GFP_KERNEL); 6559 if (!phba->sli4_hba.fcp_cq) { 6560 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6561 "2577 Failed allocate memory for fast-path " 6562 "CQ record array\n"); 6563 goto out_free_els_cq; 6564 } 6565 fcp_cqidx = 0; 6566 do { 6567 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6568 phba->sli4_hba.cq_ecount); 6569 if (!qdesc) { 6570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6571 "0499 Failed allocate fast-path FCP " 6572 "CQ (%d)\n", fcp_cqidx); 6573 goto out_free_fcp_cq; 6574 } 6575 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 6576 } while (++fcp_cqidx < phba->cfg_fcp_eq_count); 6577 6578 /* Create Mailbox Command Queue */ 6579 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 6580 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 6581 6582 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 6583 phba->sli4_hba.mq_ecount); 6584 if (!qdesc) { 6585 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6586 "0505 Failed allocate slow-path MQ\n"); 6587 goto out_free_fcp_cq; 6588 } 6589 phba->sli4_hba.mbx_wq = qdesc; 6590 6591 /* 6592 * Create all the Work Queues (WQs) 6593 */ 6594 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 6595 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 6596 6597 /* Create slow-path ELS Work Queue */ 6598 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6599 phba->sli4_hba.wq_ecount); 6600 if (!qdesc) { 6601 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6602 "0504 Failed allocate slow-path ELS WQ\n"); 6603 goto out_free_mbx_wq; 6604 } 6605 phba->sli4_hba.els_wq = qdesc; 6606 6607 /* Create fast-path FCP Work Queue(s) */ 6608 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 6609 phba->cfg_fcp_wq_count), GFP_KERNEL); 6610 if (!phba->sli4_hba.fcp_wq) { 6611 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6612 "2578 Failed allocate memory for fast-path " 6613 "WQ record array\n"); 6614 goto out_free_els_wq; 6615 } 6616 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6617 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6618 phba->sli4_hba.wq_ecount); 6619 if (!qdesc) { 6620 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6621 "0503 Failed allocate fast-path FCP " 6622 "WQ (%d)\n", fcp_wqidx); 6623 goto out_free_fcp_wq; 6624 } 6625 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 6626 } 6627 6628 /* 6629 * Create Receive Queue (RQ) 6630 */ 6631 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 6632 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 6633 6634 /* Create Receive Queue for header */ 6635 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6636 phba->sli4_hba.rq_ecount); 6637 if (!qdesc) { 6638 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6639 "0506 Failed allocate receive HRQ\n"); 6640 goto out_free_fcp_wq; 6641 } 6642 phba->sli4_hba.hdr_rq = qdesc; 6643 6644 /* Create Receive Queue for data */ 6645 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6646 phba->sli4_hba.rq_ecount); 6647 if (!qdesc) { 6648 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6649 "0507 Failed allocate receive DRQ\n"); 6650 goto out_free_hdr_rq; 6651 } 6652 phba->sli4_hba.dat_rq = qdesc; 6653 6654 return 0; 6655 6656 out_free_hdr_rq: 6657 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6658 phba->sli4_hba.hdr_rq = NULL; 6659 out_free_fcp_wq: 6660 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 6661 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 6662 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 6663 } 6664 kfree(phba->sli4_hba.fcp_wq); 6665 phba->sli4_hba.fcp_wq = NULL; 6666 out_free_els_wq: 6667 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6668 phba->sli4_hba.els_wq = NULL; 6669 out_free_mbx_wq: 6670 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6671 phba->sli4_hba.mbx_wq = NULL; 6672 out_free_fcp_cq: 6673 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 6674 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 6675 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 6676 } 6677 kfree(phba->sli4_hba.fcp_cq); 6678 phba->sli4_hba.fcp_cq = NULL; 6679 out_free_els_cq: 6680 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6681 phba->sli4_hba.els_cq = NULL; 6682 out_free_mbx_cq: 6683 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6684 phba->sli4_hba.mbx_cq = NULL; 6685 out_free_fp_eq: 6686 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 6687 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 6688 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 6689 } 6690 kfree(phba->sli4_hba.fp_eq); 6691 phba->sli4_hba.fp_eq = NULL; 6692 out_free_sp_eq: 6693 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6694 phba->sli4_hba.sp_eq = NULL; 6695 out_error: 6696 return -ENOMEM; 6697 } 6698 6699 /** 6700 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 6701 * @phba: pointer to lpfc hba data structure. 6702 * 6703 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 6704 * operation. 6705 * 6706 * Return codes 6707 * 0 - successful 6708 * -ENOMEM - No available memory 6709 * -EIO - The mailbox failed to complete successfully. 6710 **/ 6711 void 6712 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 6713 { 6714 int fcp_qidx; 6715 6716 /* Release mailbox command work queue */ 6717 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6718 phba->sli4_hba.mbx_wq = NULL; 6719 6720 /* Release ELS work queue */ 6721 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6722 phba->sli4_hba.els_wq = NULL; 6723 6724 /* Release FCP work queue */ 6725 if (phba->sli4_hba.fcp_wq != NULL) 6726 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; 6727 fcp_qidx++) 6728 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 6729 kfree(phba->sli4_hba.fcp_wq); 6730 phba->sli4_hba.fcp_wq = NULL; 6731 6732 /* Release unsolicited receive queue */ 6733 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6734 phba->sli4_hba.hdr_rq = NULL; 6735 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 6736 phba->sli4_hba.dat_rq = NULL; 6737 6738 /* Release ELS complete queue */ 6739 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6740 phba->sli4_hba.els_cq = NULL; 6741 6742 /* Release mailbox command complete queue */ 6743 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6744 phba->sli4_hba.mbx_cq = NULL; 6745 6746 /* Release FCP response complete queue */ 6747 fcp_qidx = 0; 6748 if (phba->sli4_hba.fcp_cq != NULL) 6749 do 6750 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 6751 while (++fcp_qidx < phba->cfg_fcp_eq_count); 6752 kfree(phba->sli4_hba.fcp_cq); 6753 phba->sli4_hba.fcp_cq = NULL; 6754 6755 /* Release fast-path event queue */ 6756 if (phba->sli4_hba.fp_eq != NULL) 6757 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; 6758 fcp_qidx++) 6759 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 6760 kfree(phba->sli4_hba.fp_eq); 6761 phba->sli4_hba.fp_eq = NULL; 6762 6763 /* Release slow-path event queue */ 6764 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6765 phba->sli4_hba.sp_eq = NULL; 6766 6767 return; 6768 } 6769 6770 /** 6771 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 6772 * @phba: pointer to lpfc hba data structure. 6773 * 6774 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 6775 * operation. 6776 * 6777 * Return codes 6778 * 0 - successful 6779 * -ENOMEM - No available memory 6780 * -EIO - The mailbox failed to complete successfully. 6781 **/ 6782 int 6783 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 6784 { 6785 int rc = -ENOMEM; 6786 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6787 int fcp_cq_index = 0; 6788 6789 /* 6790 * Set up Event Queues (EQs) 6791 */ 6792 6793 /* Set up slow-path event queue */ 6794 if (!phba->sli4_hba.sp_eq) { 6795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6796 "0520 Slow-path EQ not allocated\n"); 6797 goto out_error; 6798 } 6799 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 6800 LPFC_SP_DEF_IMAX); 6801 if (rc) { 6802 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6803 "0521 Failed setup of slow-path EQ: " 6804 "rc = 0x%x\n", rc); 6805 goto out_error; 6806 } 6807 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6808 "2583 Slow-path EQ setup: queue-id=%d\n", 6809 phba->sli4_hba.sp_eq->queue_id); 6810 6811 /* Set up fast-path event queue */ 6812 if (phba->cfg_fcp_eq_count && !phba->sli4_hba.fp_eq) { 6813 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6814 "3147 Fast-path EQs not allocated\n"); 6815 rc = -ENOMEM; 6816 goto out_destroy_sp_eq; 6817 } 6818 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6819 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 6820 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6821 "0522 Fast-path EQ (%d) not " 6822 "allocated\n", fcp_eqidx); 6823 rc = -ENOMEM; 6824 goto out_destroy_fp_eq; 6825 } 6826 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 6827 phba->cfg_fcp_imax); 6828 if (rc) { 6829 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6830 "0523 Failed setup of fast-path EQ " 6831 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 6832 goto out_destroy_fp_eq; 6833 } 6834 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6835 "2584 Fast-path EQ setup: " 6836 "queue[%d]-id=%d\n", fcp_eqidx, 6837 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 6838 } 6839 6840 /* 6841 * Set up Complete Queues (CQs) 6842 */ 6843 6844 /* Set up slow-path MBOX Complete Queue as the first CQ */ 6845 if (!phba->sli4_hba.mbx_cq) { 6846 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6847 "0528 Mailbox CQ not allocated\n"); 6848 rc = -ENOMEM; 6849 goto out_destroy_fp_eq; 6850 } 6851 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 6852 LPFC_MCQ, LPFC_MBOX); 6853 if (rc) { 6854 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6855 "0529 Failed setup of slow-path mailbox CQ: " 6856 "rc = 0x%x\n", rc); 6857 goto out_destroy_fp_eq; 6858 } 6859 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6860 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 6861 phba->sli4_hba.mbx_cq->queue_id, 6862 phba->sli4_hba.sp_eq->queue_id); 6863 6864 /* Set up slow-path ELS Complete Queue */ 6865 if (!phba->sli4_hba.els_cq) { 6866 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6867 "0530 ELS CQ not allocated\n"); 6868 rc = -ENOMEM; 6869 goto out_destroy_mbx_cq; 6870 } 6871 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 6872 LPFC_WCQ, LPFC_ELS); 6873 if (rc) { 6874 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6875 "0531 Failed setup of slow-path ELS CQ: " 6876 "rc = 0x%x\n", rc); 6877 goto out_destroy_mbx_cq; 6878 } 6879 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6880 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 6881 phba->sli4_hba.els_cq->queue_id, 6882 phba->sli4_hba.sp_eq->queue_id); 6883 6884 /* Set up fast-path FCP Response Complete Queue */ 6885 if (!phba->sli4_hba.fcp_cq) { 6886 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6887 "3148 Fast-path FCP CQ array not " 6888 "allocated\n"); 6889 rc = -ENOMEM; 6890 goto out_destroy_els_cq; 6891 } 6892 fcp_cqidx = 0; 6893 do { 6894 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 6895 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6896 "0526 Fast-path FCP CQ (%d) not " 6897 "allocated\n", fcp_cqidx); 6898 rc = -ENOMEM; 6899 goto out_destroy_fcp_cq; 6900 } 6901 if (phba->cfg_fcp_eq_count) 6902 rc = lpfc_cq_create(phba, 6903 phba->sli4_hba.fcp_cq[fcp_cqidx], 6904 phba->sli4_hba.fp_eq[fcp_cqidx], 6905 LPFC_WCQ, LPFC_FCP); 6906 else 6907 rc = lpfc_cq_create(phba, 6908 phba->sli4_hba.fcp_cq[fcp_cqidx], 6909 phba->sli4_hba.sp_eq, 6910 LPFC_WCQ, LPFC_FCP); 6911 if (rc) { 6912 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6913 "0527 Failed setup of fast-path FCP " 6914 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 6915 goto out_destroy_fcp_cq; 6916 } 6917 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6918 "2588 FCP CQ setup: cq[%d]-id=%d, " 6919 "parent %seq[%d]-id=%d\n", 6920 fcp_cqidx, 6921 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 6922 (phba->cfg_fcp_eq_count) ? "" : "sp_", 6923 fcp_cqidx, 6924 (phba->cfg_fcp_eq_count) ? 6925 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id : 6926 phba->sli4_hba.sp_eq->queue_id); 6927 } while (++fcp_cqidx < phba->cfg_fcp_eq_count); 6928 6929 /* 6930 * Set up all the Work Queues (WQs) 6931 */ 6932 6933 /* Set up Mailbox Command Queue */ 6934 if (!phba->sli4_hba.mbx_wq) { 6935 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6936 "0538 Slow-path MQ not allocated\n"); 6937 rc = -ENOMEM; 6938 goto out_destroy_fcp_cq; 6939 } 6940 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 6941 phba->sli4_hba.mbx_cq, LPFC_MBOX); 6942 if (rc) { 6943 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6944 "0539 Failed setup of slow-path MQ: " 6945 "rc = 0x%x\n", rc); 6946 goto out_destroy_fcp_cq; 6947 } 6948 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6949 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 6950 phba->sli4_hba.mbx_wq->queue_id, 6951 phba->sli4_hba.mbx_cq->queue_id); 6952 6953 /* Set up slow-path ELS Work Queue */ 6954 if (!phba->sli4_hba.els_wq) { 6955 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6956 "0536 Slow-path ELS WQ not allocated\n"); 6957 rc = -ENOMEM; 6958 goto out_destroy_mbx_wq; 6959 } 6960 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 6961 phba->sli4_hba.els_cq, LPFC_ELS); 6962 if (rc) { 6963 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6964 "0537 Failed setup of slow-path ELS WQ: " 6965 "rc = 0x%x\n", rc); 6966 goto out_destroy_mbx_wq; 6967 } 6968 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6969 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 6970 phba->sli4_hba.els_wq->queue_id, 6971 phba->sli4_hba.els_cq->queue_id); 6972 6973 /* Set up fast-path FCP Work Queue */ 6974 if (!phba->sli4_hba.fcp_wq) { 6975 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6976 "3149 Fast-path FCP WQ array not " 6977 "allocated\n"); 6978 rc = -ENOMEM; 6979 goto out_destroy_els_wq; 6980 } 6981 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6982 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 6983 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6984 "0534 Fast-path FCP WQ (%d) not " 6985 "allocated\n", fcp_wqidx); 6986 rc = -ENOMEM; 6987 goto out_destroy_fcp_wq; 6988 } 6989 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 6990 phba->sli4_hba.fcp_cq[fcp_cq_index], 6991 LPFC_FCP); 6992 if (rc) { 6993 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6994 "0535 Failed setup of fast-path FCP " 6995 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 6996 goto out_destroy_fcp_wq; 6997 } 6998 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6999 "2591 FCP WQ setup: wq[%d]-id=%d, " 7000 "parent cq[%d]-id=%d\n", 7001 fcp_wqidx, 7002 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 7003 fcp_cq_index, 7004 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 7005 /* Round robin FCP Work Queue's Completion Queue assignment */ 7006 if (phba->cfg_fcp_eq_count) 7007 fcp_cq_index = ((fcp_cq_index + 1) % 7008 phba->cfg_fcp_eq_count); 7009 } 7010 7011 /* 7012 * Create Receive Queue (RQ) 7013 */ 7014 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 7015 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7016 "0540 Receive Queue not allocated\n"); 7017 rc = -ENOMEM; 7018 goto out_destroy_fcp_wq; 7019 } 7020 7021 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ); 7022 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ); 7023 7024 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 7025 phba->sli4_hba.els_cq, LPFC_USOL); 7026 if (rc) { 7027 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7028 "0541 Failed setup of Receive Queue: " 7029 "rc = 0x%x\n", rc); 7030 goto out_destroy_fcp_wq; 7031 } 7032 7033 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7034 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 7035 "parent cq-id=%d\n", 7036 phba->sli4_hba.hdr_rq->queue_id, 7037 phba->sli4_hba.dat_rq->queue_id, 7038 phba->sli4_hba.els_cq->queue_id); 7039 return 0; 7040 7041 out_destroy_fcp_wq: 7042 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 7043 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 7044 out_destroy_els_wq: 7045 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7046 out_destroy_mbx_wq: 7047 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7048 out_destroy_fcp_cq: 7049 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 7050 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 7051 out_destroy_els_cq: 7052 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7053 out_destroy_mbx_cq: 7054 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7055 out_destroy_fp_eq: 7056 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 7057 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 7058 out_destroy_sp_eq: 7059 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 7060 out_error: 7061 return rc; 7062 } 7063 7064 /** 7065 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 7066 * @phba: pointer to lpfc hba data structure. 7067 * 7068 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 7069 * operation. 7070 * 7071 * Return codes 7072 * 0 - successful 7073 * -ENOMEM - No available memory 7074 * -EIO - The mailbox failed to complete successfully. 7075 **/ 7076 void 7077 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 7078 { 7079 int fcp_qidx; 7080 7081 /* Unset mailbox command work queue */ 7082 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7083 /* Unset ELS work queue */ 7084 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7085 /* Unset unsolicited receive queue */ 7086 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 7087 /* Unset FCP work queue */ 7088 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 7089 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 7090 /* Unset mailbox command complete queue */ 7091 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7092 /* Unset ELS complete queue */ 7093 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7094 /* Unset FCP response complete queue */ 7095 if (phba->sli4_hba.fcp_cq) { 7096 fcp_qidx = 0; 7097 do { 7098 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 7099 } while (++fcp_qidx < phba->cfg_fcp_eq_count); 7100 } 7101 /* Unset fast-path event queue */ 7102 if (phba->sli4_hba.fp_eq) { 7103 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; 7104 fcp_qidx++) 7105 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 7106 } 7107 /* Unset slow-path event queue */ 7108 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 7109 } 7110 7111 /** 7112 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 7113 * @phba: pointer to lpfc hba data structure. 7114 * 7115 * This routine is invoked to allocate and set up a pool of completion queue 7116 * events. The body of the completion queue event is a completion queue entry 7117 * CQE. For now, this pool is used for the interrupt service routine to queue 7118 * the following HBA completion queue events for the worker thread to process: 7119 * - Mailbox asynchronous events 7120 * - Receive queue completion unsolicited events 7121 * Later, this can be used for all the slow-path events. 7122 * 7123 * Return codes 7124 * 0 - successful 7125 * -ENOMEM - No available memory 7126 **/ 7127 static int 7128 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 7129 { 7130 struct lpfc_cq_event *cq_event; 7131 int i; 7132 7133 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 7134 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 7135 if (!cq_event) 7136 goto out_pool_create_fail; 7137 list_add_tail(&cq_event->list, 7138 &phba->sli4_hba.sp_cqe_event_pool); 7139 } 7140 return 0; 7141 7142 out_pool_create_fail: 7143 lpfc_sli4_cq_event_pool_destroy(phba); 7144 return -ENOMEM; 7145 } 7146 7147 /** 7148 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 7149 * @phba: pointer to lpfc hba data structure. 7150 * 7151 * This routine is invoked to free the pool of completion queue events at 7152 * driver unload time. Note that, it is the responsibility of the driver 7153 * cleanup routine to free all the outstanding completion-queue events 7154 * allocated from this pool back into the pool before invoking this routine 7155 * to destroy the pool. 7156 **/ 7157 static void 7158 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 7159 { 7160 struct lpfc_cq_event *cq_event, *next_cq_event; 7161 7162 list_for_each_entry_safe(cq_event, next_cq_event, 7163 &phba->sli4_hba.sp_cqe_event_pool, list) { 7164 list_del(&cq_event->list); 7165 kfree(cq_event); 7166 } 7167 } 7168 7169 /** 7170 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7171 * @phba: pointer to lpfc hba data structure. 7172 * 7173 * This routine is the lock free version of the API invoked to allocate a 7174 * completion-queue event from the free pool. 7175 * 7176 * Return: Pointer to the newly allocated completion-queue event if successful 7177 * NULL otherwise. 7178 **/ 7179 struct lpfc_cq_event * 7180 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7181 { 7182 struct lpfc_cq_event *cq_event = NULL; 7183 7184 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 7185 struct lpfc_cq_event, list); 7186 return cq_event; 7187 } 7188 7189 /** 7190 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7191 * @phba: pointer to lpfc hba data structure. 7192 * 7193 * This routine is the lock version of the API invoked to allocate a 7194 * completion-queue event from the free pool. 7195 * 7196 * Return: Pointer to the newly allocated completion-queue event if successful 7197 * NULL otherwise. 7198 **/ 7199 struct lpfc_cq_event * 7200 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7201 { 7202 struct lpfc_cq_event *cq_event; 7203 unsigned long iflags; 7204 7205 spin_lock_irqsave(&phba->hbalock, iflags); 7206 cq_event = __lpfc_sli4_cq_event_alloc(phba); 7207 spin_unlock_irqrestore(&phba->hbalock, iflags); 7208 return cq_event; 7209 } 7210 7211 /** 7212 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7213 * @phba: pointer to lpfc hba data structure. 7214 * @cq_event: pointer to the completion queue event to be freed. 7215 * 7216 * This routine is the lock free version of the API invoked to release a 7217 * completion-queue event back into the free pool. 7218 **/ 7219 void 7220 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7221 struct lpfc_cq_event *cq_event) 7222 { 7223 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 7224 } 7225 7226 /** 7227 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7228 * @phba: pointer to lpfc hba data structure. 7229 * @cq_event: pointer to the completion queue event to be freed. 7230 * 7231 * This routine is the lock version of the API invoked to release a 7232 * completion-queue event back into the free pool. 7233 **/ 7234 void 7235 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7236 struct lpfc_cq_event *cq_event) 7237 { 7238 unsigned long iflags; 7239 spin_lock_irqsave(&phba->hbalock, iflags); 7240 __lpfc_sli4_cq_event_release(phba, cq_event); 7241 spin_unlock_irqrestore(&phba->hbalock, iflags); 7242 } 7243 7244 /** 7245 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 7246 * @phba: pointer to lpfc hba data structure. 7247 * 7248 * This routine is to free all the pending completion-queue events to the 7249 * back into the free pool for device reset. 7250 **/ 7251 static void 7252 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 7253 { 7254 LIST_HEAD(cqelist); 7255 struct lpfc_cq_event *cqe; 7256 unsigned long iflags; 7257 7258 /* Retrieve all the pending WCQEs from pending WCQE lists */ 7259 spin_lock_irqsave(&phba->hbalock, iflags); 7260 /* Pending FCP XRI abort events */ 7261 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 7262 &cqelist); 7263 /* Pending ELS XRI abort events */ 7264 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 7265 &cqelist); 7266 /* Pending asynnc events */ 7267 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 7268 &cqelist); 7269 spin_unlock_irqrestore(&phba->hbalock, iflags); 7270 7271 while (!list_empty(&cqelist)) { 7272 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 7273 lpfc_sli4_cq_event_release(phba, cqe); 7274 } 7275 } 7276 7277 /** 7278 * lpfc_pci_function_reset - Reset pci function. 7279 * @phba: pointer to lpfc hba data structure. 7280 * 7281 * This routine is invoked to request a PCI function reset. It will destroys 7282 * all resources assigned to the PCI function which originates this request. 7283 * 7284 * Return codes 7285 * 0 - successful 7286 * -ENOMEM - No available memory 7287 * -EIO - The mailbox failed to complete successfully. 7288 **/ 7289 int 7290 lpfc_pci_function_reset(struct lpfc_hba *phba) 7291 { 7292 LPFC_MBOXQ_t *mboxq; 7293 uint32_t rc = 0, if_type; 7294 uint32_t shdr_status, shdr_add_status; 7295 uint32_t rdy_chk, num_resets = 0, reset_again = 0; 7296 union lpfc_sli4_cfg_shdr *shdr; 7297 struct lpfc_register reg_data; 7298 uint16_t devid; 7299 7300 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7301 switch (if_type) { 7302 case LPFC_SLI_INTF_IF_TYPE_0: 7303 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7304 GFP_KERNEL); 7305 if (!mboxq) { 7306 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7307 "0494 Unable to allocate memory for " 7308 "issuing SLI_FUNCTION_RESET mailbox " 7309 "command\n"); 7310 return -ENOMEM; 7311 } 7312 7313 /* Setup PCI function reset mailbox-ioctl command */ 7314 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7315 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 7316 LPFC_SLI4_MBX_EMBED); 7317 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7318 shdr = (union lpfc_sli4_cfg_shdr *) 7319 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7320 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7321 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7322 &shdr->response); 7323 if (rc != MBX_TIMEOUT) 7324 mempool_free(mboxq, phba->mbox_mem_pool); 7325 if (shdr_status || shdr_add_status || rc) { 7326 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7327 "0495 SLI_FUNCTION_RESET mailbox " 7328 "failed with status x%x add_status x%x," 7329 " mbx status x%x\n", 7330 shdr_status, shdr_add_status, rc); 7331 rc = -ENXIO; 7332 } 7333 break; 7334 case LPFC_SLI_INTF_IF_TYPE_2: 7335 for (num_resets = 0; 7336 num_resets < MAX_IF_TYPE_2_RESETS; 7337 num_resets++) { 7338 reg_data.word0 = 0; 7339 bf_set(lpfc_sliport_ctrl_end, ®_data, 7340 LPFC_SLIPORT_LITTLE_ENDIAN); 7341 bf_set(lpfc_sliport_ctrl_ip, ®_data, 7342 LPFC_SLIPORT_INIT_PORT); 7343 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 7344 CTRLregaddr); 7345 /* flush */ 7346 pci_read_config_word(phba->pcidev, 7347 PCI_DEVICE_ID, &devid); 7348 /* 7349 * Poll the Port Status Register and wait for RDY for 7350 * up to 10 seconds. If the port doesn't respond, treat 7351 * it as an error. If the port responds with RN, start 7352 * the loop again. 7353 */ 7354 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { 7355 msleep(10); 7356 if (lpfc_readl(phba->sli4_hba.u.if_type2. 7357 STATUSregaddr, ®_data.word0)) { 7358 rc = -ENODEV; 7359 goto out; 7360 } 7361 if (bf_get(lpfc_sliport_status_rn, ®_data)) 7362 reset_again++; 7363 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 7364 break; 7365 } 7366 7367 /* 7368 * If the port responds to the init request with 7369 * reset needed, delay for a bit and restart the loop. 7370 */ 7371 if (reset_again && (rdy_chk < 1000)) { 7372 msleep(10); 7373 reset_again = 0; 7374 continue; 7375 } 7376 7377 /* Detect any port errors. */ 7378 if ((bf_get(lpfc_sliport_status_err, ®_data)) || 7379 (rdy_chk >= 1000)) { 7380 phba->work_status[0] = readl( 7381 phba->sli4_hba.u.if_type2.ERR1regaddr); 7382 phba->work_status[1] = readl( 7383 phba->sli4_hba.u.if_type2.ERR2regaddr); 7384 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7385 "2890 Port error detected during port " 7386 "reset(%d): wait_tmo:%d ms, " 7387 "port status reg 0x%x, " 7388 "error 1=0x%x, error 2=0x%x\n", 7389 num_resets, rdy_chk*10, 7390 reg_data.word0, 7391 phba->work_status[0], 7392 phba->work_status[1]); 7393 rc = -ENODEV; 7394 } 7395 7396 /* 7397 * Terminate the outer loop provided the Port indicated 7398 * ready within 10 seconds. 7399 */ 7400 if (rdy_chk < 1000) 7401 break; 7402 } 7403 /* delay driver action following IF_TYPE_2 function reset */ 7404 msleep(100); 7405 break; 7406 case LPFC_SLI_INTF_IF_TYPE_1: 7407 default: 7408 break; 7409 } 7410 7411 out: 7412 /* Catch the not-ready port failure after a port reset. */ 7413 if (num_resets >= MAX_IF_TYPE_2_RESETS) 7414 rc = -ENODEV; 7415 7416 return rc; 7417 } 7418 7419 /** 7420 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 7421 * @phba: pointer to lpfc hba data structure. 7422 * @cnt: number of nop mailbox commands to send. 7423 * 7424 * This routine is invoked to send a number @cnt of NOP mailbox command and 7425 * wait for each command to complete. 7426 * 7427 * Return: the number of NOP mailbox command completed. 7428 **/ 7429 static int 7430 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 7431 { 7432 LPFC_MBOXQ_t *mboxq; 7433 int length, cmdsent; 7434 uint32_t mbox_tmo; 7435 uint32_t rc = 0; 7436 uint32_t shdr_status, shdr_add_status; 7437 union lpfc_sli4_cfg_shdr *shdr; 7438 7439 if (cnt == 0) { 7440 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7441 "2518 Requested to send 0 NOP mailbox cmd\n"); 7442 return cnt; 7443 } 7444 7445 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7446 if (!mboxq) { 7447 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7448 "2519 Unable to allocate memory for issuing " 7449 "NOP mailbox command\n"); 7450 return 0; 7451 } 7452 7453 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 7454 length = (sizeof(struct lpfc_mbx_nop) - 7455 sizeof(struct lpfc_sli4_cfg_mhdr)); 7456 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7457 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 7458 7459 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 7460 if (!phba->sli4_hba.intr_enable) 7461 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7462 else { 7463 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 7464 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7465 } 7466 if (rc == MBX_TIMEOUT) 7467 break; 7468 /* Check return status */ 7469 shdr = (union lpfc_sli4_cfg_shdr *) 7470 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7471 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7472 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7473 &shdr->response); 7474 if (shdr_status || shdr_add_status || rc) { 7475 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7476 "2520 NOP mailbox command failed " 7477 "status x%x add_status x%x mbx " 7478 "status x%x\n", shdr_status, 7479 shdr_add_status, rc); 7480 break; 7481 } 7482 } 7483 7484 if (rc != MBX_TIMEOUT) 7485 mempool_free(mboxq, phba->mbox_mem_pool); 7486 7487 return cmdsent; 7488 } 7489 7490 /** 7491 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 7492 * @phba: pointer to lpfc hba data structure. 7493 * 7494 * This routine is invoked to set up the PCI device memory space for device 7495 * with SLI-4 interface spec. 7496 * 7497 * Return codes 7498 * 0 - successful 7499 * other values - error 7500 **/ 7501 static int 7502 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 7503 { 7504 struct pci_dev *pdev; 7505 unsigned long bar0map_len, bar1map_len, bar2map_len; 7506 int error = -ENODEV; 7507 uint32_t if_type; 7508 7509 /* Obtain PCI device reference */ 7510 if (!phba->pcidev) 7511 return error; 7512 else 7513 pdev = phba->pcidev; 7514 7515 /* Set the device DMA mask size */ 7516 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7517 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7518 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7519 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7520 return error; 7521 } 7522 } 7523 7524 /* 7525 * The BARs and register set definitions and offset locations are 7526 * dependent on the if_type. 7527 */ 7528 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 7529 &phba->sli4_hba.sli_intf.word0)) { 7530 return error; 7531 } 7532 7533 /* There is no SLI3 failback for SLI4 devices. */ 7534 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 7535 LPFC_SLI_INTF_VALID) { 7536 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7537 "2894 SLI_INTF reg contents invalid " 7538 "sli_intf reg 0x%x\n", 7539 phba->sli4_hba.sli_intf.word0); 7540 return error; 7541 } 7542 7543 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7544 /* 7545 * Get the bus address of SLI4 device Bar regions and the 7546 * number of bytes required by each mapping. The mapping of the 7547 * particular PCI BARs regions is dependent on the type of 7548 * SLI4 device. 7549 */ 7550 if (pci_resource_start(pdev, 0)) { 7551 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7552 bar0map_len = pci_resource_len(pdev, 0); 7553 7554 /* 7555 * Map SLI4 PCI Config Space Register base to a kernel virtual 7556 * addr 7557 */ 7558 phba->sli4_hba.conf_regs_memmap_p = 7559 ioremap(phba->pci_bar0_map, bar0map_len); 7560 if (!phba->sli4_hba.conf_regs_memmap_p) { 7561 dev_printk(KERN_ERR, &pdev->dev, 7562 "ioremap failed for SLI4 PCI config " 7563 "registers.\n"); 7564 goto out; 7565 } 7566 /* Set up BAR0 PCI config space register memory map */ 7567 lpfc_sli4_bar0_register_memmap(phba, if_type); 7568 } else { 7569 phba->pci_bar0_map = pci_resource_start(pdev, 1); 7570 bar0map_len = pci_resource_len(pdev, 1); 7571 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7572 dev_printk(KERN_ERR, &pdev->dev, 7573 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 7574 goto out; 7575 } 7576 phba->sli4_hba.conf_regs_memmap_p = 7577 ioremap(phba->pci_bar0_map, bar0map_len); 7578 if (!phba->sli4_hba.conf_regs_memmap_p) { 7579 dev_printk(KERN_ERR, &pdev->dev, 7580 "ioremap failed for SLI4 PCI config " 7581 "registers.\n"); 7582 goto out; 7583 } 7584 lpfc_sli4_bar0_register_memmap(phba, if_type); 7585 } 7586 7587 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7588 (pci_resource_start(pdev, 2))) { 7589 /* 7590 * Map SLI4 if type 0 HBA Control Register base to a kernel 7591 * virtual address and setup the registers. 7592 */ 7593 phba->pci_bar1_map = pci_resource_start(pdev, 2); 7594 bar1map_len = pci_resource_len(pdev, 2); 7595 phba->sli4_hba.ctrl_regs_memmap_p = 7596 ioremap(phba->pci_bar1_map, bar1map_len); 7597 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 7598 dev_printk(KERN_ERR, &pdev->dev, 7599 "ioremap failed for SLI4 HBA control registers.\n"); 7600 goto out_iounmap_conf; 7601 } 7602 lpfc_sli4_bar1_register_memmap(phba); 7603 } 7604 7605 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7606 (pci_resource_start(pdev, 4))) { 7607 /* 7608 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 7609 * virtual address and setup the registers. 7610 */ 7611 phba->pci_bar2_map = pci_resource_start(pdev, 4); 7612 bar2map_len = pci_resource_len(pdev, 4); 7613 phba->sli4_hba.drbl_regs_memmap_p = 7614 ioremap(phba->pci_bar2_map, bar2map_len); 7615 if (!phba->sli4_hba.drbl_regs_memmap_p) { 7616 dev_printk(KERN_ERR, &pdev->dev, 7617 "ioremap failed for SLI4 HBA doorbell registers.\n"); 7618 goto out_iounmap_ctrl; 7619 } 7620 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 7621 if (error) 7622 goto out_iounmap_all; 7623 } 7624 7625 return 0; 7626 7627 out_iounmap_all: 7628 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7629 out_iounmap_ctrl: 7630 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7631 out_iounmap_conf: 7632 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7633 out: 7634 return error; 7635 } 7636 7637 /** 7638 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 7639 * @phba: pointer to lpfc hba data structure. 7640 * 7641 * This routine is invoked to unset the PCI device memory space for device 7642 * with SLI-4 interface spec. 7643 **/ 7644 static void 7645 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 7646 { 7647 uint32_t if_type; 7648 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7649 7650 switch (if_type) { 7651 case LPFC_SLI_INTF_IF_TYPE_0: 7652 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7653 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7654 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7655 break; 7656 case LPFC_SLI_INTF_IF_TYPE_2: 7657 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7658 break; 7659 case LPFC_SLI_INTF_IF_TYPE_1: 7660 default: 7661 dev_printk(KERN_ERR, &phba->pcidev->dev, 7662 "FATAL - unsupported SLI4 interface type - %d\n", 7663 if_type); 7664 break; 7665 } 7666 } 7667 7668 /** 7669 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 7670 * @phba: pointer to lpfc hba data structure. 7671 * 7672 * This routine is invoked to enable the MSI-X interrupt vectors to device 7673 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 7674 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 7675 * invoked, enables either all or nothing, depending on the current 7676 * availability of PCI vector resources. The device driver is responsible 7677 * for calling the individual request_irq() to register each MSI-X vector 7678 * with a interrupt handler, which is done in this function. Note that 7679 * later when device is unloading, the driver should always call free_irq() 7680 * on all MSI-X vectors it has done request_irq() on before calling 7681 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 7682 * will be left with MSI-X enabled and leaks its vectors. 7683 * 7684 * Return codes 7685 * 0 - successful 7686 * other values - error 7687 **/ 7688 static int 7689 lpfc_sli_enable_msix(struct lpfc_hba *phba) 7690 { 7691 int rc, i; 7692 LPFC_MBOXQ_t *pmb; 7693 7694 /* Set up MSI-X multi-message vectors */ 7695 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7696 phba->msix_entries[i].entry = i; 7697 7698 /* Configure MSI-X capability structure */ 7699 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 7700 ARRAY_SIZE(phba->msix_entries)); 7701 if (rc) { 7702 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7703 "0420 PCI enable MSI-X failed (%d)\n", rc); 7704 goto msi_fail_out; 7705 } 7706 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7707 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7708 "0477 MSI-X entry[%d]: vector=x%x " 7709 "message=%d\n", i, 7710 phba->msix_entries[i].vector, 7711 phba->msix_entries[i].entry); 7712 /* 7713 * Assign MSI-X vectors to interrupt handlers 7714 */ 7715 7716 /* vector-0 is associated to slow-path handler */ 7717 rc = request_irq(phba->msix_entries[0].vector, 7718 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 7719 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7720 if (rc) { 7721 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7722 "0421 MSI-X slow-path request_irq failed " 7723 "(%d)\n", rc); 7724 goto msi_fail_out; 7725 } 7726 7727 /* vector-1 is associated to fast-path handler */ 7728 rc = request_irq(phba->msix_entries[1].vector, 7729 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 7730 LPFC_FP_DRIVER_HANDLER_NAME, phba); 7731 7732 if (rc) { 7733 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7734 "0429 MSI-X fast-path request_irq failed " 7735 "(%d)\n", rc); 7736 goto irq_fail_out; 7737 } 7738 7739 /* 7740 * Configure HBA MSI-X attention conditions to messages 7741 */ 7742 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7743 7744 if (!pmb) { 7745 rc = -ENOMEM; 7746 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7747 "0474 Unable to allocate memory for issuing " 7748 "MBOX_CONFIG_MSI command\n"); 7749 goto mem_fail_out; 7750 } 7751 rc = lpfc_config_msi(phba, pmb); 7752 if (rc) 7753 goto mbx_fail_out; 7754 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7755 if (rc != MBX_SUCCESS) { 7756 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 7757 "0351 Config MSI mailbox command failed, " 7758 "mbxCmd x%x, mbxStatus x%x\n", 7759 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 7760 goto mbx_fail_out; 7761 } 7762 7763 /* Free memory allocated for mailbox command */ 7764 mempool_free(pmb, phba->mbox_mem_pool); 7765 return rc; 7766 7767 mbx_fail_out: 7768 /* Free memory allocated for mailbox command */ 7769 mempool_free(pmb, phba->mbox_mem_pool); 7770 7771 mem_fail_out: 7772 /* free the irq already requested */ 7773 free_irq(phba->msix_entries[1].vector, phba); 7774 7775 irq_fail_out: 7776 /* free the irq already requested */ 7777 free_irq(phba->msix_entries[0].vector, phba); 7778 7779 msi_fail_out: 7780 /* Unconfigure MSI-X capability structure */ 7781 pci_disable_msix(phba->pcidev); 7782 return rc; 7783 } 7784 7785 /** 7786 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 7787 * @phba: pointer to lpfc hba data structure. 7788 * 7789 * This routine is invoked to release the MSI-X vectors and then disable the 7790 * MSI-X interrupt mode to device with SLI-3 interface spec. 7791 **/ 7792 static void 7793 lpfc_sli_disable_msix(struct lpfc_hba *phba) 7794 { 7795 int i; 7796 7797 /* Free up MSI-X multi-message vectors */ 7798 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7799 free_irq(phba->msix_entries[i].vector, phba); 7800 /* Disable MSI-X */ 7801 pci_disable_msix(phba->pcidev); 7802 7803 return; 7804 } 7805 7806 /** 7807 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 7808 * @phba: pointer to lpfc hba data structure. 7809 * 7810 * This routine is invoked to enable the MSI interrupt mode to device with 7811 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 7812 * enable the MSI vector. The device driver is responsible for calling the 7813 * request_irq() to register MSI vector with a interrupt the handler, which 7814 * is done in this function. 7815 * 7816 * Return codes 7817 * 0 - successful 7818 * other values - error 7819 */ 7820 static int 7821 lpfc_sli_enable_msi(struct lpfc_hba *phba) 7822 { 7823 int rc; 7824 7825 rc = pci_enable_msi(phba->pcidev); 7826 if (!rc) 7827 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7828 "0462 PCI enable MSI mode success.\n"); 7829 else { 7830 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7831 "0471 PCI enable MSI mode failed (%d)\n", rc); 7832 return rc; 7833 } 7834 7835 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 7836 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7837 if (rc) { 7838 pci_disable_msi(phba->pcidev); 7839 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7840 "0478 MSI request_irq failed (%d)\n", rc); 7841 } 7842 return rc; 7843 } 7844 7845 /** 7846 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 7847 * @phba: pointer to lpfc hba data structure. 7848 * 7849 * This routine is invoked to disable the MSI interrupt mode to device with 7850 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 7851 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7852 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7853 * its vector. 7854 */ 7855 static void 7856 lpfc_sli_disable_msi(struct lpfc_hba *phba) 7857 { 7858 free_irq(phba->pcidev->irq, phba); 7859 pci_disable_msi(phba->pcidev); 7860 return; 7861 } 7862 7863 /** 7864 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 7865 * @phba: pointer to lpfc hba data structure. 7866 * 7867 * This routine is invoked to enable device interrupt and associate driver's 7868 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 7869 * spec. Depends on the interrupt mode configured to the driver, the driver 7870 * will try to fallback from the configured interrupt mode to an interrupt 7871 * mode which is supported by the platform, kernel, and device in the order 7872 * of: 7873 * MSI-X -> MSI -> IRQ. 7874 * 7875 * Return codes 7876 * 0 - successful 7877 * other values - error 7878 **/ 7879 static uint32_t 7880 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7881 { 7882 uint32_t intr_mode = LPFC_INTR_ERROR; 7883 int retval; 7884 7885 if (cfg_mode == 2) { 7886 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 7887 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 7888 if (!retval) { 7889 /* Now, try to enable MSI-X interrupt mode */ 7890 retval = lpfc_sli_enable_msix(phba); 7891 if (!retval) { 7892 /* Indicate initialization to MSI-X mode */ 7893 phba->intr_type = MSIX; 7894 intr_mode = 2; 7895 } 7896 } 7897 } 7898 7899 /* Fallback to MSI if MSI-X initialization failed */ 7900 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7901 retval = lpfc_sli_enable_msi(phba); 7902 if (!retval) { 7903 /* Indicate initialization to MSI mode */ 7904 phba->intr_type = MSI; 7905 intr_mode = 1; 7906 } 7907 } 7908 7909 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7910 if (phba->intr_type == NONE) { 7911 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 7912 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7913 if (!retval) { 7914 /* Indicate initialization to INTx mode */ 7915 phba->intr_type = INTx; 7916 intr_mode = 0; 7917 } 7918 } 7919 return intr_mode; 7920 } 7921 7922 /** 7923 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 7924 * @phba: pointer to lpfc hba data structure. 7925 * 7926 * This routine is invoked to disable device interrupt and disassociate the 7927 * driver's interrupt handler(s) from interrupt vector(s) to device with 7928 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 7929 * release the interrupt vector(s) for the message signaled interrupt. 7930 **/ 7931 static void 7932 lpfc_sli_disable_intr(struct lpfc_hba *phba) 7933 { 7934 /* Disable the currently initialized interrupt mode */ 7935 if (phba->intr_type == MSIX) 7936 lpfc_sli_disable_msix(phba); 7937 else if (phba->intr_type == MSI) 7938 lpfc_sli_disable_msi(phba); 7939 else if (phba->intr_type == INTx) 7940 free_irq(phba->pcidev->irq, phba); 7941 7942 /* Reset interrupt management states */ 7943 phba->intr_type = NONE; 7944 phba->sli.slistat.sli_intr = 0; 7945 7946 return; 7947 } 7948 7949 /** 7950 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 7951 * @phba: pointer to lpfc hba data structure. 7952 * 7953 * This routine is invoked to enable the MSI-X interrupt vectors to device 7954 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 7955 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 7956 * enables either all or nothing, depending on the current availability of 7957 * PCI vector resources. The device driver is responsible for calling the 7958 * individual request_irq() to register each MSI-X vector with a interrupt 7959 * handler, which is done in this function. Note that later when device is 7960 * unloading, the driver should always call free_irq() on all MSI-X vectors 7961 * it has done request_irq() on before calling pci_disable_msix(). Failure 7962 * to do so results in a BUG_ON() and a device will be left with MSI-X 7963 * enabled and leaks its vectors. 7964 * 7965 * Return codes 7966 * 0 - successful 7967 * other values - error 7968 **/ 7969 static int 7970 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 7971 { 7972 int vectors, rc, index; 7973 7974 /* Set up MSI-X multi-message vectors */ 7975 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 7976 phba->sli4_hba.msix_entries[index].entry = index; 7977 7978 /* Configure MSI-X capability structure */ 7979 vectors = phba->sli4_hba.cfg_eqn; 7980 enable_msix_vectors: 7981 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 7982 vectors); 7983 if (rc > 1) { 7984 vectors = rc; 7985 goto enable_msix_vectors; 7986 } else if (rc) { 7987 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7988 "0484 PCI enable MSI-X failed (%d)\n", rc); 7989 goto msi_fail_out; 7990 } 7991 7992 /* Log MSI-X vector assignment */ 7993 for (index = 0; index < vectors; index++) 7994 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7995 "0489 MSI-X entry[%d]: vector=x%x " 7996 "message=%d\n", index, 7997 phba->sli4_hba.msix_entries[index].vector, 7998 phba->sli4_hba.msix_entries[index].entry); 7999 /* 8000 * Assign MSI-X vectors to interrupt handlers 8001 */ 8002 if (vectors > 1) 8003 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 8004 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 8005 LPFC_SP_DRIVER_HANDLER_NAME, phba); 8006 else 8007 /* All Interrupts need to be handled by one EQ */ 8008 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 8009 &lpfc_sli4_intr_handler, IRQF_SHARED, 8010 LPFC_DRIVER_NAME, phba); 8011 if (rc) { 8012 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8013 "0485 MSI-X slow-path request_irq failed " 8014 "(%d)\n", rc); 8015 goto msi_fail_out; 8016 } 8017 8018 /* The rest of the vector(s) are associated to fast-path handler(s) */ 8019 for (index = 1; index < vectors; index++) { 8020 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 8021 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 8022 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 8023 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 8024 LPFC_FP_DRIVER_HANDLER_NAME, 8025 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 8026 if (rc) { 8027 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8028 "0486 MSI-X fast-path (%d) " 8029 "request_irq failed (%d)\n", index, rc); 8030 goto cfg_fail_out; 8031 } 8032 } 8033 phba->sli4_hba.msix_vec_nr = vectors; 8034 8035 return rc; 8036 8037 cfg_fail_out: 8038 /* free the irq already requested */ 8039 for (--index; index >= 1; index--) 8040 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 8041 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 8042 8043 /* free the irq already requested */ 8044 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 8045 8046 msi_fail_out: 8047 /* Unconfigure MSI-X capability structure */ 8048 pci_disable_msix(phba->pcidev); 8049 return rc; 8050 } 8051 8052 /** 8053 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 8054 * @phba: pointer to lpfc hba data structure. 8055 * 8056 * This routine is invoked to release the MSI-X vectors and then disable the 8057 * MSI-X interrupt mode to device with SLI-4 interface spec. 8058 **/ 8059 static void 8060 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 8061 { 8062 int index; 8063 8064 /* Free up MSI-X multi-message vectors */ 8065 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 8066 8067 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++) 8068 free_irq(phba->sli4_hba.msix_entries[index].vector, 8069 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 8070 8071 /* Disable MSI-X */ 8072 pci_disable_msix(phba->pcidev); 8073 8074 return; 8075 } 8076 8077 /** 8078 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 8079 * @phba: pointer to lpfc hba data structure. 8080 * 8081 * This routine is invoked to enable the MSI interrupt mode to device with 8082 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 8083 * to enable the MSI vector. The device driver is responsible for calling 8084 * the request_irq() to register MSI vector with a interrupt the handler, 8085 * which is done in this function. 8086 * 8087 * Return codes 8088 * 0 - successful 8089 * other values - error 8090 **/ 8091 static int 8092 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 8093 { 8094 int rc, index; 8095 8096 rc = pci_enable_msi(phba->pcidev); 8097 if (!rc) 8098 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8099 "0487 PCI enable MSI mode success.\n"); 8100 else { 8101 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8102 "0488 PCI enable MSI mode failed (%d)\n", rc); 8103 return rc; 8104 } 8105 8106 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8107 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8108 if (rc) { 8109 pci_disable_msi(phba->pcidev); 8110 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8111 "0490 MSI request_irq failed (%d)\n", rc); 8112 return rc; 8113 } 8114 8115 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 8116 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8117 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8118 } 8119 8120 return 0; 8121 } 8122 8123 /** 8124 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 8125 * @phba: pointer to lpfc hba data structure. 8126 * 8127 * This routine is invoked to disable the MSI interrupt mode to device with 8128 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 8129 * done request_irq() on before calling pci_disable_msi(). Failure to do so 8130 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 8131 * its vector. 8132 **/ 8133 static void 8134 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 8135 { 8136 free_irq(phba->pcidev->irq, phba); 8137 pci_disable_msi(phba->pcidev); 8138 return; 8139 } 8140 8141 /** 8142 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 8143 * @phba: pointer to lpfc hba data structure. 8144 * 8145 * This routine is invoked to enable device interrupt and associate driver's 8146 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 8147 * interface spec. Depends on the interrupt mode configured to the driver, 8148 * the driver will try to fallback from the configured interrupt mode to an 8149 * interrupt mode which is supported by the platform, kernel, and device in 8150 * the order of: 8151 * MSI-X -> MSI -> IRQ. 8152 * 8153 * Return codes 8154 * 0 - successful 8155 * other values - error 8156 **/ 8157 static uint32_t 8158 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 8159 { 8160 uint32_t intr_mode = LPFC_INTR_ERROR; 8161 int retval, index; 8162 8163 if (cfg_mode == 2) { 8164 /* Preparation before conf_msi mbox cmd */ 8165 retval = 0; 8166 if (!retval) { 8167 /* Now, try to enable MSI-X interrupt mode */ 8168 retval = lpfc_sli4_enable_msix(phba); 8169 if (!retval) { 8170 /* Indicate initialization to MSI-X mode */ 8171 phba->intr_type = MSIX; 8172 intr_mode = 2; 8173 } 8174 } 8175 } 8176 8177 /* Fallback to MSI if MSI-X initialization failed */ 8178 if (cfg_mode >= 1 && phba->intr_type == NONE) { 8179 retval = lpfc_sli4_enable_msi(phba); 8180 if (!retval) { 8181 /* Indicate initialization to MSI mode */ 8182 phba->intr_type = MSI; 8183 intr_mode = 1; 8184 } 8185 } 8186 8187 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 8188 if (phba->intr_type == NONE) { 8189 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8190 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8191 if (!retval) { 8192 /* Indicate initialization to INTx mode */ 8193 phba->intr_type = INTx; 8194 intr_mode = 0; 8195 for (index = 0; index < phba->cfg_fcp_eq_count; 8196 index++) { 8197 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8198 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8199 } 8200 } 8201 } 8202 return intr_mode; 8203 } 8204 8205 /** 8206 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 8207 * @phba: pointer to lpfc hba data structure. 8208 * 8209 * This routine is invoked to disable device interrupt and disassociate 8210 * the driver's interrupt handler(s) from interrupt vector(s) to device 8211 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 8212 * will release the interrupt vector(s) for the message signaled interrupt. 8213 **/ 8214 static void 8215 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 8216 { 8217 /* Disable the currently initialized interrupt mode */ 8218 if (phba->intr_type == MSIX) 8219 lpfc_sli4_disable_msix(phba); 8220 else if (phba->intr_type == MSI) 8221 lpfc_sli4_disable_msi(phba); 8222 else if (phba->intr_type == INTx) 8223 free_irq(phba->pcidev->irq, phba); 8224 8225 /* Reset interrupt management states */ 8226 phba->intr_type = NONE; 8227 phba->sli.slistat.sli_intr = 0; 8228 8229 return; 8230 } 8231 8232 /** 8233 * lpfc_unset_hba - Unset SLI3 hba device initialization 8234 * @phba: pointer to lpfc hba data structure. 8235 * 8236 * This routine is invoked to unset the HBA device initialization steps to 8237 * a device with SLI-3 interface spec. 8238 **/ 8239 static void 8240 lpfc_unset_hba(struct lpfc_hba *phba) 8241 { 8242 struct lpfc_vport *vport = phba->pport; 8243 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8244 8245 spin_lock_irq(shost->host_lock); 8246 vport->load_flag |= FC_UNLOADING; 8247 spin_unlock_irq(shost->host_lock); 8248 8249 kfree(phba->vpi_bmask); 8250 kfree(phba->vpi_ids); 8251 8252 lpfc_stop_hba_timers(phba); 8253 8254 phba->pport->work_port_events = 0; 8255 8256 lpfc_sli_hba_down(phba); 8257 8258 lpfc_sli_brdrestart(phba); 8259 8260 lpfc_sli_disable_intr(phba); 8261 8262 return; 8263 } 8264 8265 /** 8266 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 8267 * @phba: pointer to lpfc hba data structure. 8268 * 8269 * This routine is invoked to unset the HBA device initialization steps to 8270 * a device with SLI-4 interface spec. 8271 **/ 8272 static void 8273 lpfc_sli4_unset_hba(struct lpfc_hba *phba) 8274 { 8275 struct lpfc_vport *vport = phba->pport; 8276 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8277 8278 spin_lock_irq(shost->host_lock); 8279 vport->load_flag |= FC_UNLOADING; 8280 spin_unlock_irq(shost->host_lock); 8281 8282 phba->pport->work_port_events = 0; 8283 8284 /* Stop the SLI4 device port */ 8285 lpfc_stop_port(phba); 8286 8287 lpfc_sli4_disable_intr(phba); 8288 8289 /* Reset SLI4 HBA FCoE function */ 8290 lpfc_pci_function_reset(phba); 8291 lpfc_sli4_queue_destroy(phba); 8292 8293 return; 8294 } 8295 8296 /** 8297 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 8298 * @phba: Pointer to HBA context object. 8299 * 8300 * This function is called in the SLI4 code path to wait for completion 8301 * of device's XRIs exchange busy. It will check the XRI exchange busy 8302 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 8303 * that, it will check the XRI exchange busy on outstanding FCP and ELS 8304 * I/Os every 30 seconds, log error message, and wait forever. Only when 8305 * all XRI exchange busy complete, the driver unload shall proceed with 8306 * invoking the function reset ioctl mailbox command to the CNA and the 8307 * the rest of the driver unload resource release. 8308 **/ 8309 static void 8310 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 8311 { 8312 int wait_time = 0; 8313 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8314 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8315 8316 while (!fcp_xri_cmpl || !els_xri_cmpl) { 8317 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 8318 if (!fcp_xri_cmpl) 8319 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8320 "2877 FCP XRI exchange busy " 8321 "wait time: %d seconds.\n", 8322 wait_time/1000); 8323 if (!els_xri_cmpl) 8324 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8325 "2878 ELS XRI exchange busy " 8326 "wait time: %d seconds.\n", 8327 wait_time/1000); 8328 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 8329 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 8330 } else { 8331 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 8332 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 8333 } 8334 fcp_xri_cmpl = 8335 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8336 els_xri_cmpl = 8337 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8338 } 8339 } 8340 8341 /** 8342 * lpfc_sli4_hba_unset - Unset the fcoe hba 8343 * @phba: Pointer to HBA context object. 8344 * 8345 * This function is called in the SLI4 code path to reset the HBA's FCoE 8346 * function. The caller is not required to hold any lock. This routine 8347 * issues PCI function reset mailbox command to reset the FCoE function. 8348 * At the end of the function, it calls lpfc_hba_down_post function to 8349 * free any pending commands. 8350 **/ 8351 static void 8352 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 8353 { 8354 int wait_cnt = 0; 8355 LPFC_MBOXQ_t *mboxq; 8356 struct pci_dev *pdev = phba->pcidev; 8357 8358 lpfc_stop_hba_timers(phba); 8359 phba->sli4_hba.intr_enable = 0; 8360 8361 /* 8362 * Gracefully wait out the potential current outstanding asynchronous 8363 * mailbox command. 8364 */ 8365 8366 /* First, block any pending async mailbox command from posted */ 8367 spin_lock_irq(&phba->hbalock); 8368 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 8369 spin_unlock_irq(&phba->hbalock); 8370 /* Now, trying to wait it out if we can */ 8371 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8372 msleep(10); 8373 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 8374 break; 8375 } 8376 /* Forcefully release the outstanding mailbox command if timed out */ 8377 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8378 spin_lock_irq(&phba->hbalock); 8379 mboxq = phba->sli.mbox_active; 8380 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 8381 __lpfc_mbox_cmpl_put(phba, mboxq); 8382 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 8383 phba->sli.mbox_active = NULL; 8384 spin_unlock_irq(&phba->hbalock); 8385 } 8386 8387 /* Abort all iocbs associated with the hba */ 8388 lpfc_sli_hba_iocb_abort(phba); 8389 8390 /* Wait for completion of device XRI exchange busy */ 8391 lpfc_sli4_xri_exchange_busy_wait(phba); 8392 8393 /* Disable PCI subsystem interrupt */ 8394 lpfc_sli4_disable_intr(phba); 8395 8396 /* Disable SR-IOV if enabled */ 8397 if (phba->cfg_sriov_nr_virtfn) 8398 pci_disable_sriov(pdev); 8399 8400 /* Stop kthread signal shall trigger work_done one more time */ 8401 kthread_stop(phba->worker_thread); 8402 8403 /* Reset SLI4 HBA FCoE function */ 8404 lpfc_pci_function_reset(phba); 8405 lpfc_sli4_queue_destroy(phba); 8406 8407 /* Stop the SLI4 device port */ 8408 phba->pport->work_port_events = 0; 8409 } 8410 8411 /** 8412 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 8413 * @phba: Pointer to HBA context object. 8414 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8415 * 8416 * This function is called in the SLI4 code path to read the port's 8417 * sli4 capabilities. 8418 * 8419 * This function may be be called from any context that can block-wait 8420 * for the completion. The expectation is that this routine is called 8421 * typically from probe_one or from the online routine. 8422 **/ 8423 int 8424 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8425 { 8426 int rc; 8427 struct lpfc_mqe *mqe; 8428 struct lpfc_pc_sli4_params *sli4_params; 8429 uint32_t mbox_tmo; 8430 8431 rc = 0; 8432 mqe = &mboxq->u.mqe; 8433 8434 /* Read the port's SLI4 Parameters port capabilities */ 8435 lpfc_pc_sli4_params(mboxq); 8436 if (!phba->sli4_hba.intr_enable) 8437 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8438 else { 8439 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 8440 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 8441 } 8442 8443 if (unlikely(rc)) 8444 return 1; 8445 8446 sli4_params = &phba->sli4_hba.pc_sli4_params; 8447 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 8448 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 8449 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 8450 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 8451 &mqe->un.sli4_params); 8452 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 8453 &mqe->un.sli4_params); 8454 sli4_params->proto_types = mqe->un.sli4_params.word3; 8455 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 8456 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 8457 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 8458 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 8459 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 8460 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 8461 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 8462 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 8463 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 8464 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 8465 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 8466 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 8467 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 8468 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 8469 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 8470 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 8471 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 8472 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 8473 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 8474 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 8475 8476 /* Make sure that sge_supp_len can be handled by the driver */ 8477 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8478 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8479 8480 return rc; 8481 } 8482 8483 /** 8484 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 8485 * @phba: Pointer to HBA context object. 8486 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8487 * 8488 * This function is called in the SLI4 code path to read the port's 8489 * sli4 capabilities. 8490 * 8491 * This function may be be called from any context that can block-wait 8492 * for the completion. The expectation is that this routine is called 8493 * typically from probe_one or from the online routine. 8494 **/ 8495 int 8496 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8497 { 8498 int rc; 8499 struct lpfc_mqe *mqe = &mboxq->u.mqe; 8500 struct lpfc_pc_sli4_params *sli4_params; 8501 uint32_t mbox_tmo; 8502 int length; 8503 struct lpfc_sli4_parameters *mbx_sli4_parameters; 8504 8505 /* 8506 * By default, the driver assumes the SLI4 port requires RPI 8507 * header postings. The SLI4_PARAM response will correct this 8508 * assumption. 8509 */ 8510 phba->sli4_hba.rpi_hdrs_in_use = 1; 8511 8512 /* Read the port's SLI4 Config Parameters */ 8513 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 8514 sizeof(struct lpfc_sli4_cfg_mhdr)); 8515 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8516 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 8517 length, LPFC_SLI4_MBX_EMBED); 8518 if (!phba->sli4_hba.intr_enable) 8519 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8520 else { 8521 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 8522 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 8523 } 8524 if (unlikely(rc)) 8525 return rc; 8526 sli4_params = &phba->sli4_hba.pc_sli4_params; 8527 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 8528 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 8529 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 8530 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 8531 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 8532 mbx_sli4_parameters); 8533 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 8534 mbx_sli4_parameters); 8535 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 8536 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 8537 else 8538 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 8539 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 8540 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 8541 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 8542 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 8543 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 8544 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 8545 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 8546 mbx_sli4_parameters); 8547 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 8548 mbx_sli4_parameters); 8549 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 8550 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 8551 8552 /* Make sure that sge_supp_len can be handled by the driver */ 8553 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8554 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8555 8556 return 0; 8557 } 8558 8559 /** 8560 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 8561 * @pdev: pointer to PCI device 8562 * @pid: pointer to PCI device identifier 8563 * 8564 * This routine is to be called to attach a device with SLI-3 interface spec 8565 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8566 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8567 * information of the device and driver to see if the driver state that it can 8568 * support this kind of device. If the match is successful, the driver core 8569 * invokes this routine. If this routine determines it can claim the HBA, it 8570 * does all the initialization that it needs to do to handle the HBA properly. 8571 * 8572 * Return code 8573 * 0 - driver can claim the device 8574 * negative value - driver can not claim the device 8575 **/ 8576 static int __devinit 8577 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 8578 { 8579 struct lpfc_hba *phba; 8580 struct lpfc_vport *vport = NULL; 8581 struct Scsi_Host *shost = NULL; 8582 int error; 8583 uint32_t cfg_mode, intr_mode; 8584 8585 /* Allocate memory for HBA structure */ 8586 phba = lpfc_hba_alloc(pdev); 8587 if (!phba) 8588 return -ENOMEM; 8589 8590 /* Perform generic PCI device enabling operation */ 8591 error = lpfc_enable_pci_dev(phba); 8592 if (error) 8593 goto out_free_phba; 8594 8595 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 8596 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 8597 if (error) 8598 goto out_disable_pci_dev; 8599 8600 /* Set up SLI-3 specific device PCI memory space */ 8601 error = lpfc_sli_pci_mem_setup(phba); 8602 if (error) { 8603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8604 "1402 Failed to set up pci memory space.\n"); 8605 goto out_disable_pci_dev; 8606 } 8607 8608 /* Set up phase-1 common device driver resources */ 8609 error = lpfc_setup_driver_resource_phase1(phba); 8610 if (error) { 8611 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8612 "1403 Failed to set up driver resource.\n"); 8613 goto out_unset_pci_mem_s3; 8614 } 8615 8616 /* Set up SLI-3 specific device driver resources */ 8617 error = lpfc_sli_driver_resource_setup(phba); 8618 if (error) { 8619 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8620 "1404 Failed to set up driver resource.\n"); 8621 goto out_unset_pci_mem_s3; 8622 } 8623 8624 /* Initialize and populate the iocb list per host */ 8625 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 8626 if (error) { 8627 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8628 "1405 Failed to initialize iocb list.\n"); 8629 goto out_unset_driver_resource_s3; 8630 } 8631 8632 /* Set up common device driver resources */ 8633 error = lpfc_setup_driver_resource_phase2(phba); 8634 if (error) { 8635 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8636 "1406 Failed to set up driver resource.\n"); 8637 goto out_free_iocb_list; 8638 } 8639 8640 /* Get the default values for Model Name and Description */ 8641 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 8642 8643 /* Create SCSI host to the physical port */ 8644 error = lpfc_create_shost(phba); 8645 if (error) { 8646 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8647 "1407 Failed to create scsi host.\n"); 8648 goto out_unset_driver_resource; 8649 } 8650 8651 /* Configure sysfs attributes */ 8652 vport = phba->pport; 8653 error = lpfc_alloc_sysfs_attr(vport); 8654 if (error) { 8655 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8656 "1476 Failed to allocate sysfs attr\n"); 8657 goto out_destroy_shost; 8658 } 8659 8660 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8661 /* Now, trying to enable interrupt and bring up the device */ 8662 cfg_mode = phba->cfg_use_msi; 8663 while (true) { 8664 /* Put device to a known state before enabling interrupt */ 8665 lpfc_stop_port(phba); 8666 /* Configure and enable interrupt */ 8667 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 8668 if (intr_mode == LPFC_INTR_ERROR) { 8669 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8670 "0431 Failed to enable interrupt.\n"); 8671 error = -ENODEV; 8672 goto out_free_sysfs_attr; 8673 } 8674 /* SLI-3 HBA setup */ 8675 if (lpfc_sli_hba_setup(phba)) { 8676 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8677 "1477 Failed to set up hba\n"); 8678 error = -ENODEV; 8679 goto out_remove_device; 8680 } 8681 8682 /* Wait 50ms for the interrupts of previous mailbox commands */ 8683 msleep(50); 8684 /* Check active interrupts on message signaled interrupts */ 8685 if (intr_mode == 0 || 8686 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 8687 /* Log the current active interrupt mode */ 8688 phba->intr_mode = intr_mode; 8689 lpfc_log_intr_mode(phba, intr_mode); 8690 break; 8691 } else { 8692 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8693 "0447 Configure interrupt mode (%d) " 8694 "failed active interrupt test.\n", 8695 intr_mode); 8696 /* Disable the current interrupt mode */ 8697 lpfc_sli_disable_intr(phba); 8698 /* Try next level of interrupt mode */ 8699 cfg_mode = --intr_mode; 8700 } 8701 } 8702 8703 /* Perform post initialization setup */ 8704 lpfc_post_init_setup(phba); 8705 8706 /* Check if there are static vports to be created. */ 8707 lpfc_create_static_vport(phba); 8708 8709 return 0; 8710 8711 out_remove_device: 8712 lpfc_unset_hba(phba); 8713 out_free_sysfs_attr: 8714 lpfc_free_sysfs_attr(vport); 8715 out_destroy_shost: 8716 lpfc_destroy_shost(phba); 8717 out_unset_driver_resource: 8718 lpfc_unset_driver_resource_phase2(phba); 8719 out_free_iocb_list: 8720 lpfc_free_iocb_list(phba); 8721 out_unset_driver_resource_s3: 8722 lpfc_sli_driver_resource_unset(phba); 8723 out_unset_pci_mem_s3: 8724 lpfc_sli_pci_mem_unset(phba); 8725 out_disable_pci_dev: 8726 lpfc_disable_pci_dev(phba); 8727 if (shost) 8728 scsi_host_put(shost); 8729 out_free_phba: 8730 lpfc_hba_free(phba); 8731 return error; 8732 } 8733 8734 /** 8735 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 8736 * @pdev: pointer to PCI device 8737 * 8738 * This routine is to be called to disattach a device with SLI-3 interface 8739 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8740 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8741 * device to be removed from the PCI subsystem properly. 8742 **/ 8743 static void __devexit 8744 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 8745 { 8746 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8747 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8748 struct lpfc_vport **vports; 8749 struct lpfc_hba *phba = vport->phba; 8750 int i; 8751 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 8752 8753 spin_lock_irq(&phba->hbalock); 8754 vport->load_flag |= FC_UNLOADING; 8755 spin_unlock_irq(&phba->hbalock); 8756 8757 lpfc_free_sysfs_attr(vport); 8758 8759 /* Release all the vports against this physical port */ 8760 vports = lpfc_create_vport_work_array(phba); 8761 if (vports != NULL) 8762 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 8763 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 8764 continue; 8765 fc_vport_terminate(vports[i]->fc_vport); 8766 } 8767 lpfc_destroy_vport_work_array(phba, vports); 8768 8769 /* Remove FC host and then SCSI host with the physical port */ 8770 fc_remove_host(shost); 8771 scsi_remove_host(shost); 8772 lpfc_cleanup(vport); 8773 8774 /* 8775 * Bring down the SLI Layer. This step disable all interrupts, 8776 * clears the rings, discards all mailbox commands, and resets 8777 * the HBA. 8778 */ 8779 8780 /* HBA interrupt will be disabled after this call */ 8781 lpfc_sli_hba_down(phba); 8782 /* Stop kthread signal shall trigger work_done one more time */ 8783 kthread_stop(phba->worker_thread); 8784 /* Final cleanup of txcmplq and reset the HBA */ 8785 lpfc_sli_brdrestart(phba); 8786 8787 kfree(phba->vpi_bmask); 8788 kfree(phba->vpi_ids); 8789 8790 lpfc_stop_hba_timers(phba); 8791 spin_lock_irq(&phba->hbalock); 8792 list_del_init(&vport->listentry); 8793 spin_unlock_irq(&phba->hbalock); 8794 8795 lpfc_debugfs_terminate(vport); 8796 8797 /* Disable SR-IOV if enabled */ 8798 if (phba->cfg_sriov_nr_virtfn) 8799 pci_disable_sriov(pdev); 8800 8801 /* Disable interrupt */ 8802 lpfc_sli_disable_intr(phba); 8803 8804 pci_set_drvdata(pdev, NULL); 8805 scsi_host_put(shost); 8806 8807 /* 8808 * Call scsi_free before mem_free since scsi bufs are released to their 8809 * corresponding pools here. 8810 */ 8811 lpfc_scsi_free(phba); 8812 lpfc_mem_free_all(phba); 8813 8814 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 8815 phba->hbqslimp.virt, phba->hbqslimp.phys); 8816 8817 /* Free resources associated with SLI2 interface */ 8818 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 8819 phba->slim2p.virt, phba->slim2p.phys); 8820 8821 /* unmap adapter SLIM and Control Registers */ 8822 iounmap(phba->ctrl_regs_memmap_p); 8823 iounmap(phba->slim_memmap_p); 8824 8825 lpfc_hba_free(phba); 8826 8827 pci_release_selected_regions(pdev, bars); 8828 pci_disable_device(pdev); 8829 } 8830 8831 /** 8832 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 8833 * @pdev: pointer to PCI device 8834 * @msg: power management message 8835 * 8836 * This routine is to be called from the kernel's PCI subsystem to support 8837 * system Power Management (PM) to device with SLI-3 interface spec. When 8838 * PM invokes this method, it quiesces the device by stopping the driver's 8839 * worker thread for the device, turning off device's interrupt and DMA, 8840 * and bring the device offline. Note that as the driver implements the 8841 * minimum PM requirements to a power-aware driver's PM support for the 8842 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8843 * to the suspend() method call will be treated as SUSPEND and the driver will 8844 * fully reinitialize its device during resume() method call, the driver will 8845 * set device to PCI_D3hot state in PCI config space instead of setting it 8846 * according to the @msg provided by the PM. 8847 * 8848 * Return code 8849 * 0 - driver suspended the device 8850 * Error otherwise 8851 **/ 8852 static int 8853 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 8854 { 8855 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8856 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8857 8858 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8859 "0473 PCI device Power Management suspend.\n"); 8860 8861 /* Bring down the device */ 8862 lpfc_offline_prep(phba); 8863 lpfc_offline(phba); 8864 kthread_stop(phba->worker_thread); 8865 8866 /* Disable interrupt from device */ 8867 lpfc_sli_disable_intr(phba); 8868 8869 /* Save device state to PCI config space */ 8870 pci_save_state(pdev); 8871 pci_set_power_state(pdev, PCI_D3hot); 8872 8873 return 0; 8874 } 8875 8876 /** 8877 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 8878 * @pdev: pointer to PCI device 8879 * 8880 * This routine is to be called from the kernel's PCI subsystem to support 8881 * system Power Management (PM) to device with SLI-3 interface spec. When PM 8882 * invokes this method, it restores the device's PCI config space state and 8883 * fully reinitializes the device and brings it online. Note that as the 8884 * driver implements the minimum PM requirements to a power-aware driver's 8885 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 8886 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 8887 * driver will fully reinitialize its device during resume() method call, 8888 * the device will be set to PCI_D0 directly in PCI config space before 8889 * restoring the state. 8890 * 8891 * Return code 8892 * 0 - driver suspended the device 8893 * Error otherwise 8894 **/ 8895 static int 8896 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 8897 { 8898 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8899 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8900 uint32_t intr_mode; 8901 int error; 8902 8903 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8904 "0452 PCI device Power Management resume.\n"); 8905 8906 /* Restore device state from PCI config space */ 8907 pci_set_power_state(pdev, PCI_D0); 8908 pci_restore_state(pdev); 8909 8910 /* 8911 * As the new kernel behavior of pci_restore_state() API call clears 8912 * device saved_state flag, need to save the restored state again. 8913 */ 8914 pci_save_state(pdev); 8915 8916 if (pdev->is_busmaster) 8917 pci_set_master(pdev); 8918 8919 /* Startup the kernel thread for this host adapter. */ 8920 phba->worker_thread = kthread_run(lpfc_do_work, phba, 8921 "lpfc_worker_%d", phba->brd_no); 8922 if (IS_ERR(phba->worker_thread)) { 8923 error = PTR_ERR(phba->worker_thread); 8924 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8925 "0434 PM resume failed to start worker " 8926 "thread: error=x%x.\n", error); 8927 return error; 8928 } 8929 8930 /* Configure and enable interrupt */ 8931 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8932 if (intr_mode == LPFC_INTR_ERROR) { 8933 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8934 "0430 PM resume Failed to enable interrupt\n"); 8935 return -EIO; 8936 } else 8937 phba->intr_mode = intr_mode; 8938 8939 /* Restart HBA and bring it online */ 8940 lpfc_sli_brdrestart(phba); 8941 lpfc_online(phba); 8942 8943 /* Log the current active interrupt mode */ 8944 lpfc_log_intr_mode(phba, phba->intr_mode); 8945 8946 return 0; 8947 } 8948 8949 /** 8950 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 8951 * @phba: pointer to lpfc hba data structure. 8952 * 8953 * This routine is called to prepare the SLI3 device for PCI slot recover. It 8954 * aborts all the outstanding SCSI I/Os to the pci device. 8955 **/ 8956 static void 8957 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 8958 { 8959 struct lpfc_sli *psli = &phba->sli; 8960 struct lpfc_sli_ring *pring; 8961 8962 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8963 "2723 PCI channel I/O abort preparing for recovery\n"); 8964 8965 /* 8966 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 8967 * and let the SCSI mid-layer to retry them to recover. 8968 */ 8969 pring = &psli->ring[psli->fcp_ring]; 8970 lpfc_sli_abort_iocb_ring(phba, pring); 8971 } 8972 8973 /** 8974 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 8975 * @phba: pointer to lpfc hba data structure. 8976 * 8977 * This routine is called to prepare the SLI3 device for PCI slot reset. It 8978 * disables the device interrupt and pci device, and aborts the internal FCP 8979 * pending I/Os. 8980 **/ 8981 static void 8982 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 8983 { 8984 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8985 "2710 PCI channel disable preparing for reset\n"); 8986 8987 /* Block any management I/Os to the device */ 8988 lpfc_block_mgmt_io(phba); 8989 8990 /* Block all SCSI devices' I/Os on the host */ 8991 lpfc_scsi_dev_block(phba); 8992 8993 /* stop all timers */ 8994 lpfc_stop_hba_timers(phba); 8995 8996 /* Disable interrupt and pci device */ 8997 lpfc_sli_disable_intr(phba); 8998 pci_disable_device(phba->pcidev); 8999 9000 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9001 lpfc_sli_flush_fcp_rings(phba); 9002 } 9003 9004 /** 9005 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 9006 * @phba: pointer to lpfc hba data structure. 9007 * 9008 * This routine is called to prepare the SLI3 device for PCI slot permanently 9009 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9010 * pending I/Os. 9011 **/ 9012 static void 9013 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9014 { 9015 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9016 "2711 PCI channel permanent disable for failure\n"); 9017 /* Block all SCSI devices' I/Os on the host */ 9018 lpfc_scsi_dev_block(phba); 9019 9020 /* stop all timers */ 9021 lpfc_stop_hba_timers(phba); 9022 9023 /* Clean up all driver's outstanding SCSI I/Os */ 9024 lpfc_sli_flush_fcp_rings(phba); 9025 } 9026 9027 /** 9028 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 9029 * @pdev: pointer to PCI device. 9030 * @state: the current PCI connection state. 9031 * 9032 * This routine is called from the PCI subsystem for I/O error handling to 9033 * device with SLI-3 interface spec. This function is called by the PCI 9034 * subsystem after a PCI bus error affecting this device has been detected. 9035 * When this function is invoked, it will need to stop all the I/Os and 9036 * interrupt(s) to the device. Once that is done, it will return 9037 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 9038 * as desired. 9039 * 9040 * Return codes 9041 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 9042 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9043 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9044 **/ 9045 static pci_ers_result_t 9046 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 9047 { 9048 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9049 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9050 9051 switch (state) { 9052 case pci_channel_io_normal: 9053 /* Non-fatal error, prepare for recovery */ 9054 lpfc_sli_prep_dev_for_recover(phba); 9055 return PCI_ERS_RESULT_CAN_RECOVER; 9056 case pci_channel_io_frozen: 9057 /* Fatal error, prepare for slot reset */ 9058 lpfc_sli_prep_dev_for_reset(phba); 9059 return PCI_ERS_RESULT_NEED_RESET; 9060 case pci_channel_io_perm_failure: 9061 /* Permanent failure, prepare for device down */ 9062 lpfc_sli_prep_dev_for_perm_failure(phba); 9063 return PCI_ERS_RESULT_DISCONNECT; 9064 default: 9065 /* Unknown state, prepare and request slot reset */ 9066 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9067 "0472 Unknown PCI error state: x%x\n", state); 9068 lpfc_sli_prep_dev_for_reset(phba); 9069 return PCI_ERS_RESULT_NEED_RESET; 9070 } 9071 } 9072 9073 /** 9074 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 9075 * @pdev: pointer to PCI device. 9076 * 9077 * This routine is called from the PCI subsystem for error handling to 9078 * device with SLI-3 interface spec. This is called after PCI bus has been 9079 * reset to restart the PCI card from scratch, as if from a cold-boot. 9080 * During the PCI subsystem error recovery, after driver returns 9081 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 9082 * recovery and then call this routine before calling the .resume method 9083 * to recover the device. This function will initialize the HBA device, 9084 * enable the interrupt, but it will just put the HBA to offline state 9085 * without passing any I/O traffic. 9086 * 9087 * Return codes 9088 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9089 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9090 */ 9091 static pci_ers_result_t 9092 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 9093 { 9094 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9095 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9096 struct lpfc_sli *psli = &phba->sli; 9097 uint32_t intr_mode; 9098 9099 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9100 if (pci_enable_device_mem(pdev)) { 9101 printk(KERN_ERR "lpfc: Cannot re-enable " 9102 "PCI device after reset.\n"); 9103 return PCI_ERS_RESULT_DISCONNECT; 9104 } 9105 9106 pci_restore_state(pdev); 9107 9108 /* 9109 * As the new kernel behavior of pci_restore_state() API call clears 9110 * device saved_state flag, need to save the restored state again. 9111 */ 9112 pci_save_state(pdev); 9113 9114 if (pdev->is_busmaster) 9115 pci_set_master(pdev); 9116 9117 spin_lock_irq(&phba->hbalock); 9118 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 9119 spin_unlock_irq(&phba->hbalock); 9120 9121 /* Configure and enable interrupt */ 9122 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 9123 if (intr_mode == LPFC_INTR_ERROR) { 9124 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9125 "0427 Cannot re-enable interrupt after " 9126 "slot reset.\n"); 9127 return PCI_ERS_RESULT_DISCONNECT; 9128 } else 9129 phba->intr_mode = intr_mode; 9130 9131 /* Take device offline, it will perform cleanup */ 9132 lpfc_offline_prep(phba); 9133 lpfc_offline(phba); 9134 lpfc_sli_brdrestart(phba); 9135 9136 /* Log the current active interrupt mode */ 9137 lpfc_log_intr_mode(phba, phba->intr_mode); 9138 9139 return PCI_ERS_RESULT_RECOVERED; 9140 } 9141 9142 /** 9143 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 9144 * @pdev: pointer to PCI device 9145 * 9146 * This routine is called from the PCI subsystem for error handling to device 9147 * with SLI-3 interface spec. It is called when kernel error recovery tells 9148 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 9149 * error recovery. After this call, traffic can start to flow from this device 9150 * again. 9151 */ 9152 static void 9153 lpfc_io_resume_s3(struct pci_dev *pdev) 9154 { 9155 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9156 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9157 9158 /* Bring device online, it will be no-op for non-fatal error resume */ 9159 lpfc_online(phba); 9160 9161 /* Clean up Advanced Error Reporting (AER) if needed */ 9162 if (phba->hba_flag & HBA_AER_ENABLED) 9163 pci_cleanup_aer_uncorrect_error_status(pdev); 9164 } 9165 9166 /** 9167 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 9168 * @phba: pointer to lpfc hba data structure. 9169 * 9170 * returns the number of ELS/CT IOCBs to reserve 9171 **/ 9172 int 9173 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 9174 { 9175 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 9176 9177 if (phba->sli_rev == LPFC_SLI_REV4) { 9178 if (max_xri <= 100) 9179 return 10; 9180 else if (max_xri <= 256) 9181 return 25; 9182 else if (max_xri <= 512) 9183 return 50; 9184 else if (max_xri <= 1024) 9185 return 100; 9186 else if (max_xri <= 1536) 9187 return 150; 9188 else if (max_xri <= 2048) 9189 return 200; 9190 else 9191 return 250; 9192 } else 9193 return 0; 9194 } 9195 9196 /** 9197 * lpfc_write_firmware - attempt to write a firmware image to the port 9198 * @phba: pointer to lpfc hba data structure. 9199 * @fw: pointer to firmware image returned from request_firmware. 9200 * 9201 * returns the number of bytes written if write is successful. 9202 * returns a negative error value if there were errors. 9203 * returns 0 if firmware matches currently active firmware on port. 9204 **/ 9205 int 9206 lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw) 9207 { 9208 char fwrev[FW_REV_STR_SIZE]; 9209 struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data; 9210 struct list_head dma_buffer_list; 9211 int i, rc = 0; 9212 struct lpfc_dmabuf *dmabuf, *next; 9213 uint32_t offset = 0, temp_offset = 0; 9214 9215 INIT_LIST_HEAD(&dma_buffer_list); 9216 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) || 9217 (bf_get_be32(lpfc_grp_hdr_file_type, image) != 9218 LPFC_FILE_TYPE_GROUP) || 9219 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) || 9220 (be32_to_cpu(image->size) != fw->size)) { 9221 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9222 "3022 Invalid FW image found. " 9223 "Magic:%x Type:%x ID:%x\n", 9224 be32_to_cpu(image->magic_number), 9225 bf_get_be32(lpfc_grp_hdr_file_type, image), 9226 bf_get_be32(lpfc_grp_hdr_id, image)); 9227 return -EINVAL; 9228 } 9229 lpfc_decode_firmware_rev(phba, fwrev, 1); 9230 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 9231 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9232 "3023 Updating Firmware. Current Version:%s " 9233 "New Version:%s\n", 9234 fwrev, image->revision); 9235 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 9236 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 9237 GFP_KERNEL); 9238 if (!dmabuf) { 9239 rc = -ENOMEM; 9240 goto out; 9241 } 9242 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 9243 SLI4_PAGE_SIZE, 9244 &dmabuf->phys, 9245 GFP_KERNEL); 9246 if (!dmabuf->virt) { 9247 kfree(dmabuf); 9248 rc = -ENOMEM; 9249 goto out; 9250 } 9251 list_add_tail(&dmabuf->list, &dma_buffer_list); 9252 } 9253 while (offset < fw->size) { 9254 temp_offset = offset; 9255 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 9256 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 9257 memcpy(dmabuf->virt, 9258 fw->data + temp_offset, 9259 fw->size - temp_offset); 9260 temp_offset = fw->size; 9261 break; 9262 } 9263 memcpy(dmabuf->virt, fw->data + temp_offset, 9264 SLI4_PAGE_SIZE); 9265 temp_offset += SLI4_PAGE_SIZE; 9266 } 9267 rc = lpfc_wr_object(phba, &dma_buffer_list, 9268 (fw->size - offset), &offset); 9269 if (rc) { 9270 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9271 "3024 Firmware update failed. " 9272 "%d\n", rc); 9273 goto out; 9274 } 9275 } 9276 rc = offset; 9277 } 9278 out: 9279 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 9280 list_del(&dmabuf->list); 9281 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 9282 dmabuf->virt, dmabuf->phys); 9283 kfree(dmabuf); 9284 } 9285 return rc; 9286 } 9287 9288 /** 9289 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 9290 * @pdev: pointer to PCI device 9291 * @pid: pointer to PCI device identifier 9292 * 9293 * This routine is called from the kernel's PCI subsystem to device with 9294 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9295 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 9296 * information of the device and driver to see if the driver state that it 9297 * can support this kind of device. If the match is successful, the driver 9298 * core invokes this routine. If this routine determines it can claim the HBA, 9299 * it does all the initialization that it needs to do to handle the HBA 9300 * properly. 9301 * 9302 * Return code 9303 * 0 - driver can claim the device 9304 * negative value - driver can not claim the device 9305 **/ 9306 static int __devinit 9307 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 9308 { 9309 struct lpfc_hba *phba; 9310 struct lpfc_vport *vport = NULL; 9311 struct Scsi_Host *shost = NULL; 9312 int error; 9313 uint32_t cfg_mode, intr_mode; 9314 int mcnt; 9315 int adjusted_fcp_eq_count; 9316 const struct firmware *fw; 9317 uint8_t file_name[16]; 9318 9319 /* Allocate memory for HBA structure */ 9320 phba = lpfc_hba_alloc(pdev); 9321 if (!phba) 9322 return -ENOMEM; 9323 9324 /* Perform generic PCI device enabling operation */ 9325 error = lpfc_enable_pci_dev(phba); 9326 if (error) 9327 goto out_free_phba; 9328 9329 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 9330 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 9331 if (error) 9332 goto out_disable_pci_dev; 9333 9334 /* Set up SLI-4 specific device PCI memory space */ 9335 error = lpfc_sli4_pci_mem_setup(phba); 9336 if (error) { 9337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9338 "1410 Failed to set up pci memory space.\n"); 9339 goto out_disable_pci_dev; 9340 } 9341 9342 /* Set up phase-1 common device driver resources */ 9343 error = lpfc_setup_driver_resource_phase1(phba); 9344 if (error) { 9345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9346 "1411 Failed to set up driver resource.\n"); 9347 goto out_unset_pci_mem_s4; 9348 } 9349 9350 /* Set up SLI-4 Specific device driver resources */ 9351 error = lpfc_sli4_driver_resource_setup(phba); 9352 if (error) { 9353 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9354 "1412 Failed to set up driver resource.\n"); 9355 goto out_unset_pci_mem_s4; 9356 } 9357 9358 /* Initialize and populate the iocb list per host */ 9359 9360 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9361 "2821 initialize iocb list %d.\n", 9362 phba->cfg_iocb_cnt*1024); 9363 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 9364 9365 if (error) { 9366 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9367 "1413 Failed to initialize iocb list.\n"); 9368 goto out_unset_driver_resource_s4; 9369 } 9370 9371 INIT_LIST_HEAD(&phba->active_rrq_list); 9372 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 9373 9374 /* Set up common device driver resources */ 9375 error = lpfc_setup_driver_resource_phase2(phba); 9376 if (error) { 9377 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9378 "1414 Failed to set up driver resource.\n"); 9379 goto out_free_iocb_list; 9380 } 9381 9382 /* Get the default values for Model Name and Description */ 9383 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 9384 9385 /* Create SCSI host to the physical port */ 9386 error = lpfc_create_shost(phba); 9387 if (error) { 9388 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9389 "1415 Failed to create scsi host.\n"); 9390 goto out_unset_driver_resource; 9391 } 9392 9393 /* Configure sysfs attributes */ 9394 vport = phba->pport; 9395 error = lpfc_alloc_sysfs_attr(vport); 9396 if (error) { 9397 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9398 "1416 Failed to allocate sysfs attr\n"); 9399 goto out_destroy_shost; 9400 } 9401 9402 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 9403 /* Now, trying to enable interrupt and bring up the device */ 9404 cfg_mode = phba->cfg_use_msi; 9405 while (true) { 9406 /* Put device to a known state before enabling interrupt */ 9407 lpfc_stop_port(phba); 9408 /* Configure and enable interrupt */ 9409 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 9410 if (intr_mode == LPFC_INTR_ERROR) { 9411 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9412 "0426 Failed to enable interrupt.\n"); 9413 error = -ENODEV; 9414 goto out_free_sysfs_attr; 9415 } 9416 /* Default to single EQ for non-MSI-X */ 9417 if (phba->intr_type != MSIX) 9418 adjusted_fcp_eq_count = 0; 9419 else if (phba->sli4_hba.msix_vec_nr < 9420 phba->cfg_fcp_eq_count + 1) 9421 adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1; 9422 else 9423 adjusted_fcp_eq_count = phba->cfg_fcp_eq_count; 9424 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count; 9425 /* Set up SLI-4 HBA */ 9426 if (lpfc_sli4_hba_setup(phba)) { 9427 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9428 "1421 Failed to set up hba\n"); 9429 error = -ENODEV; 9430 goto out_disable_intr; 9431 } 9432 9433 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 9434 if (intr_mode != 0) 9435 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 9436 LPFC_ACT_INTR_CNT); 9437 9438 /* Check active interrupts received only for MSI/MSI-X */ 9439 if (intr_mode == 0 || 9440 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 9441 /* Log the current active interrupt mode */ 9442 phba->intr_mode = intr_mode; 9443 lpfc_log_intr_mode(phba, intr_mode); 9444 break; 9445 } 9446 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9447 "0451 Configure interrupt mode (%d) " 9448 "failed active interrupt test.\n", 9449 intr_mode); 9450 /* Unset the previous SLI-4 HBA setup. */ 9451 /* 9452 * TODO: Is this operation compatible with IF TYPE 2 9453 * devices? All port state is deleted and cleared. 9454 */ 9455 lpfc_sli4_unset_hba(phba); 9456 /* Try next level of interrupt mode */ 9457 cfg_mode = --intr_mode; 9458 } 9459 9460 /* Perform post initialization setup */ 9461 lpfc_post_init_setup(phba); 9462 9463 /* check for firmware upgrade or downgrade (if_type 2 only) */ 9464 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 9465 LPFC_SLI_INTF_IF_TYPE_2) { 9466 snprintf(file_name, 16, "%s.grp", phba->ModelName); 9467 error = request_firmware(&fw, file_name, &phba->pcidev->dev); 9468 if (!error) { 9469 lpfc_write_firmware(phba, fw); 9470 release_firmware(fw); 9471 } 9472 } 9473 9474 /* Check if there are static vports to be created. */ 9475 lpfc_create_static_vport(phba); 9476 return 0; 9477 9478 out_disable_intr: 9479 lpfc_sli4_disable_intr(phba); 9480 out_free_sysfs_attr: 9481 lpfc_free_sysfs_attr(vport); 9482 out_destroy_shost: 9483 lpfc_destroy_shost(phba); 9484 out_unset_driver_resource: 9485 lpfc_unset_driver_resource_phase2(phba); 9486 out_free_iocb_list: 9487 lpfc_free_iocb_list(phba); 9488 out_unset_driver_resource_s4: 9489 lpfc_sli4_driver_resource_unset(phba); 9490 out_unset_pci_mem_s4: 9491 lpfc_sli4_pci_mem_unset(phba); 9492 out_disable_pci_dev: 9493 lpfc_disable_pci_dev(phba); 9494 if (shost) 9495 scsi_host_put(shost); 9496 out_free_phba: 9497 lpfc_hba_free(phba); 9498 return error; 9499 } 9500 9501 /** 9502 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 9503 * @pdev: pointer to PCI device 9504 * 9505 * This routine is called from the kernel's PCI subsystem to device with 9506 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9507 * removed from PCI bus, it performs all the necessary cleanup for the HBA 9508 * device to be removed from the PCI subsystem properly. 9509 **/ 9510 static void __devexit 9511 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 9512 { 9513 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9514 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 9515 struct lpfc_vport **vports; 9516 struct lpfc_hba *phba = vport->phba; 9517 int i; 9518 9519 /* Mark the device unloading flag */ 9520 spin_lock_irq(&phba->hbalock); 9521 vport->load_flag |= FC_UNLOADING; 9522 spin_unlock_irq(&phba->hbalock); 9523 9524 /* Free the HBA sysfs attributes */ 9525 lpfc_free_sysfs_attr(vport); 9526 9527 /* Release all the vports against this physical port */ 9528 vports = lpfc_create_vport_work_array(phba); 9529 if (vports != NULL) 9530 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 9531 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 9532 continue; 9533 fc_vport_terminate(vports[i]->fc_vport); 9534 } 9535 lpfc_destroy_vport_work_array(phba, vports); 9536 9537 /* Remove FC host and then SCSI host with the physical port */ 9538 fc_remove_host(shost); 9539 scsi_remove_host(shost); 9540 9541 /* Perform cleanup on the physical port */ 9542 lpfc_cleanup(vport); 9543 9544 /* 9545 * Bring down the SLI Layer. This step disables all interrupts, 9546 * clears the rings, discards all mailbox commands, and resets 9547 * the HBA FCoE function. 9548 */ 9549 lpfc_debugfs_terminate(vport); 9550 lpfc_sli4_hba_unset(phba); 9551 9552 spin_lock_irq(&phba->hbalock); 9553 list_del_init(&vport->listentry); 9554 spin_unlock_irq(&phba->hbalock); 9555 9556 /* Perform scsi free before driver resource_unset since scsi 9557 * buffers are released to their corresponding pools here. 9558 */ 9559 lpfc_scsi_free(phba); 9560 lpfc_sli4_driver_resource_unset(phba); 9561 9562 /* Unmap adapter Control and Doorbell registers */ 9563 lpfc_sli4_pci_mem_unset(phba); 9564 9565 /* Release PCI resources and disable device's PCI function */ 9566 scsi_host_put(shost); 9567 lpfc_disable_pci_dev(phba); 9568 9569 /* Finally, free the driver's device data structure */ 9570 lpfc_hba_free(phba); 9571 9572 return; 9573 } 9574 9575 /** 9576 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 9577 * @pdev: pointer to PCI device 9578 * @msg: power management message 9579 * 9580 * This routine is called from the kernel's PCI subsystem to support system 9581 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 9582 * this method, it quiesces the device by stopping the driver's worker 9583 * thread for the device, turning off device's interrupt and DMA, and bring 9584 * the device offline. Note that as the driver implements the minimum PM 9585 * requirements to a power-aware driver's PM support for suspend/resume -- all 9586 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 9587 * method call will be treated as SUSPEND and the driver will fully 9588 * reinitialize its device during resume() method call, the driver will set 9589 * device to PCI_D3hot state in PCI config space instead of setting it 9590 * according to the @msg provided by the PM. 9591 * 9592 * Return code 9593 * 0 - driver suspended the device 9594 * Error otherwise 9595 **/ 9596 static int 9597 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 9598 { 9599 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9600 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9601 9602 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9603 "2843 PCI device Power Management suspend.\n"); 9604 9605 /* Bring down the device */ 9606 lpfc_offline_prep(phba); 9607 lpfc_offline(phba); 9608 kthread_stop(phba->worker_thread); 9609 9610 /* Disable interrupt from device */ 9611 lpfc_sli4_disable_intr(phba); 9612 lpfc_sli4_queue_destroy(phba); 9613 9614 /* Save device state to PCI config space */ 9615 pci_save_state(pdev); 9616 pci_set_power_state(pdev, PCI_D3hot); 9617 9618 return 0; 9619 } 9620 9621 /** 9622 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 9623 * @pdev: pointer to PCI device 9624 * 9625 * This routine is called from the kernel's PCI subsystem to support system 9626 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 9627 * this method, it restores the device's PCI config space state and fully 9628 * reinitializes the device and brings it online. Note that as the driver 9629 * implements the minimum PM requirements to a power-aware driver's PM for 9630 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 9631 * to the suspend() method call will be treated as SUSPEND and the driver 9632 * will fully reinitialize its device during resume() method call, the device 9633 * will be set to PCI_D0 directly in PCI config space before restoring the 9634 * state. 9635 * 9636 * Return code 9637 * 0 - driver suspended the device 9638 * Error otherwise 9639 **/ 9640 static int 9641 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 9642 { 9643 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9644 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9645 uint32_t intr_mode; 9646 int error; 9647 9648 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9649 "0292 PCI device Power Management resume.\n"); 9650 9651 /* Restore device state from PCI config space */ 9652 pci_set_power_state(pdev, PCI_D0); 9653 pci_restore_state(pdev); 9654 9655 /* 9656 * As the new kernel behavior of pci_restore_state() API call clears 9657 * device saved_state flag, need to save the restored state again. 9658 */ 9659 pci_save_state(pdev); 9660 9661 if (pdev->is_busmaster) 9662 pci_set_master(pdev); 9663 9664 /* Startup the kernel thread for this host adapter. */ 9665 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9666 "lpfc_worker_%d", phba->brd_no); 9667 if (IS_ERR(phba->worker_thread)) { 9668 error = PTR_ERR(phba->worker_thread); 9669 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9670 "0293 PM resume failed to start worker " 9671 "thread: error=x%x.\n", error); 9672 return error; 9673 } 9674 9675 /* Configure and enable interrupt */ 9676 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9677 if (intr_mode == LPFC_INTR_ERROR) { 9678 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9679 "0294 PM resume Failed to enable interrupt\n"); 9680 return -EIO; 9681 } else 9682 phba->intr_mode = intr_mode; 9683 9684 /* Restart HBA and bring it online */ 9685 lpfc_sli_brdrestart(phba); 9686 lpfc_online(phba); 9687 9688 /* Log the current active interrupt mode */ 9689 lpfc_log_intr_mode(phba, phba->intr_mode); 9690 9691 return 0; 9692 } 9693 9694 /** 9695 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 9696 * @phba: pointer to lpfc hba data structure. 9697 * 9698 * This routine is called to prepare the SLI4 device for PCI slot recover. It 9699 * aborts all the outstanding SCSI I/Os to the pci device. 9700 **/ 9701 static void 9702 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 9703 { 9704 struct lpfc_sli *psli = &phba->sli; 9705 struct lpfc_sli_ring *pring; 9706 9707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9708 "2828 PCI channel I/O abort preparing for recovery\n"); 9709 /* 9710 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9711 * and let the SCSI mid-layer to retry them to recover. 9712 */ 9713 pring = &psli->ring[psli->fcp_ring]; 9714 lpfc_sli_abort_iocb_ring(phba, pring); 9715 } 9716 9717 /** 9718 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 9719 * @phba: pointer to lpfc hba data structure. 9720 * 9721 * This routine is called to prepare the SLI4 device for PCI slot reset. It 9722 * disables the device interrupt and pci device, and aborts the internal FCP 9723 * pending I/Os. 9724 **/ 9725 static void 9726 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 9727 { 9728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9729 "2826 PCI channel disable preparing for reset\n"); 9730 9731 /* Block any management I/Os to the device */ 9732 lpfc_block_mgmt_io(phba); 9733 9734 /* Block all SCSI devices' I/Os on the host */ 9735 lpfc_scsi_dev_block(phba); 9736 9737 /* stop all timers */ 9738 lpfc_stop_hba_timers(phba); 9739 9740 /* Disable interrupt and pci device */ 9741 lpfc_sli4_disable_intr(phba); 9742 lpfc_sli4_queue_destroy(phba); 9743 pci_disable_device(phba->pcidev); 9744 9745 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9746 lpfc_sli_flush_fcp_rings(phba); 9747 } 9748 9749 /** 9750 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 9751 * @phba: pointer to lpfc hba data structure. 9752 * 9753 * This routine is called to prepare the SLI4 device for PCI slot permanently 9754 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9755 * pending I/Os. 9756 **/ 9757 static void 9758 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9759 { 9760 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9761 "2827 PCI channel permanent disable for failure\n"); 9762 9763 /* Block all SCSI devices' I/Os on the host */ 9764 lpfc_scsi_dev_block(phba); 9765 9766 /* stop all timers */ 9767 lpfc_stop_hba_timers(phba); 9768 9769 /* Clean up all driver's outstanding SCSI I/Os */ 9770 lpfc_sli_flush_fcp_rings(phba); 9771 } 9772 9773 /** 9774 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 9775 * @pdev: pointer to PCI device. 9776 * @state: the current PCI connection state. 9777 * 9778 * This routine is called from the PCI subsystem for error handling to device 9779 * with SLI-4 interface spec. This function is called by the PCI subsystem 9780 * after a PCI bus error affecting this device has been detected. When this 9781 * function is invoked, it will need to stop all the I/Os and interrupt(s) 9782 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 9783 * for the PCI subsystem to perform proper recovery as desired. 9784 * 9785 * Return codes 9786 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9787 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9788 **/ 9789 static pci_ers_result_t 9790 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 9791 { 9792 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9793 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9794 9795 switch (state) { 9796 case pci_channel_io_normal: 9797 /* Non-fatal error, prepare for recovery */ 9798 lpfc_sli4_prep_dev_for_recover(phba); 9799 return PCI_ERS_RESULT_CAN_RECOVER; 9800 case pci_channel_io_frozen: 9801 /* Fatal error, prepare for slot reset */ 9802 lpfc_sli4_prep_dev_for_reset(phba); 9803 return PCI_ERS_RESULT_NEED_RESET; 9804 case pci_channel_io_perm_failure: 9805 /* Permanent failure, prepare for device down */ 9806 lpfc_sli4_prep_dev_for_perm_failure(phba); 9807 return PCI_ERS_RESULT_DISCONNECT; 9808 default: 9809 /* Unknown state, prepare and request slot reset */ 9810 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9811 "2825 Unknown PCI error state: x%x\n", state); 9812 lpfc_sli4_prep_dev_for_reset(phba); 9813 return PCI_ERS_RESULT_NEED_RESET; 9814 } 9815 } 9816 9817 /** 9818 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 9819 * @pdev: pointer to PCI device. 9820 * 9821 * This routine is called from the PCI subsystem for error handling to device 9822 * with SLI-4 interface spec. It is called after PCI bus has been reset to 9823 * restart the PCI card from scratch, as if from a cold-boot. During the 9824 * PCI subsystem error recovery, after the driver returns 9825 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 9826 * recovery and then call this routine before calling the .resume method to 9827 * recover the device. This function will initialize the HBA device, enable 9828 * the interrupt, but it will just put the HBA to offline state without 9829 * passing any I/O traffic. 9830 * 9831 * Return codes 9832 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9833 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9834 */ 9835 static pci_ers_result_t 9836 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 9837 { 9838 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9839 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9840 struct lpfc_sli *psli = &phba->sli; 9841 uint32_t intr_mode; 9842 9843 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9844 if (pci_enable_device_mem(pdev)) { 9845 printk(KERN_ERR "lpfc: Cannot re-enable " 9846 "PCI device after reset.\n"); 9847 return PCI_ERS_RESULT_DISCONNECT; 9848 } 9849 9850 pci_restore_state(pdev); 9851 9852 /* 9853 * As the new kernel behavior of pci_restore_state() API call clears 9854 * device saved_state flag, need to save the restored state again. 9855 */ 9856 pci_save_state(pdev); 9857 9858 if (pdev->is_busmaster) 9859 pci_set_master(pdev); 9860 9861 spin_lock_irq(&phba->hbalock); 9862 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 9863 spin_unlock_irq(&phba->hbalock); 9864 9865 /* Configure and enable interrupt */ 9866 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9867 if (intr_mode == LPFC_INTR_ERROR) { 9868 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9869 "2824 Cannot re-enable interrupt after " 9870 "slot reset.\n"); 9871 return PCI_ERS_RESULT_DISCONNECT; 9872 } else 9873 phba->intr_mode = intr_mode; 9874 9875 /* Log the current active interrupt mode */ 9876 lpfc_log_intr_mode(phba, phba->intr_mode); 9877 9878 return PCI_ERS_RESULT_RECOVERED; 9879 } 9880 9881 /** 9882 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 9883 * @pdev: pointer to PCI device 9884 * 9885 * This routine is called from the PCI subsystem for error handling to device 9886 * with SLI-4 interface spec. It is called when kernel error recovery tells 9887 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 9888 * error recovery. After this call, traffic can start to flow from this device 9889 * again. 9890 **/ 9891 static void 9892 lpfc_io_resume_s4(struct pci_dev *pdev) 9893 { 9894 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9895 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9896 9897 /* 9898 * In case of slot reset, as function reset is performed through 9899 * mailbox command which needs DMA to be enabled, this operation 9900 * has to be moved to the io resume phase. Taking device offline 9901 * will perform the necessary cleanup. 9902 */ 9903 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 9904 /* Perform device reset */ 9905 lpfc_offline_prep(phba); 9906 lpfc_offline(phba); 9907 lpfc_sli_brdrestart(phba); 9908 /* Bring the device back online */ 9909 lpfc_online(phba); 9910 } 9911 9912 /* Clean up Advanced Error Reporting (AER) if needed */ 9913 if (phba->hba_flag & HBA_AER_ENABLED) 9914 pci_cleanup_aer_uncorrect_error_status(pdev); 9915 } 9916 9917 /** 9918 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 9919 * @pdev: pointer to PCI device 9920 * @pid: pointer to PCI device identifier 9921 * 9922 * This routine is to be registered to the kernel's PCI subsystem. When an 9923 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 9924 * at PCI device-specific information of the device and driver to see if the 9925 * driver state that it can support this kind of device. If the match is 9926 * successful, the driver core invokes this routine. This routine dispatches 9927 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 9928 * do all the initialization that it needs to do to handle the HBA device 9929 * properly. 9930 * 9931 * Return code 9932 * 0 - driver can claim the device 9933 * negative value - driver can not claim the device 9934 **/ 9935 static int __devinit 9936 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 9937 { 9938 int rc; 9939 struct lpfc_sli_intf intf; 9940 9941 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 9942 return -ENODEV; 9943 9944 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 9945 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 9946 rc = lpfc_pci_probe_one_s4(pdev, pid); 9947 else 9948 rc = lpfc_pci_probe_one_s3(pdev, pid); 9949 9950 return rc; 9951 } 9952 9953 /** 9954 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 9955 * @pdev: pointer to PCI device 9956 * 9957 * This routine is to be registered to the kernel's PCI subsystem. When an 9958 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 9959 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 9960 * remove routine, which will perform all the necessary cleanup for the 9961 * device to be removed from the PCI subsystem properly. 9962 **/ 9963 static void __devexit 9964 lpfc_pci_remove_one(struct pci_dev *pdev) 9965 { 9966 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9967 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9968 9969 switch (phba->pci_dev_grp) { 9970 case LPFC_PCI_DEV_LP: 9971 lpfc_pci_remove_one_s3(pdev); 9972 break; 9973 case LPFC_PCI_DEV_OC: 9974 lpfc_pci_remove_one_s4(pdev); 9975 break; 9976 default: 9977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9978 "1424 Invalid PCI device group: 0x%x\n", 9979 phba->pci_dev_grp); 9980 break; 9981 } 9982 return; 9983 } 9984 9985 /** 9986 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 9987 * @pdev: pointer to PCI device 9988 * @msg: power management message 9989 * 9990 * This routine is to be registered to the kernel's PCI subsystem to support 9991 * system Power Management (PM). When PM invokes this method, it dispatches 9992 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 9993 * suspend the device. 9994 * 9995 * Return code 9996 * 0 - driver suspended the device 9997 * Error otherwise 9998 **/ 9999 static int 10000 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 10001 { 10002 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10003 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10004 int rc = -ENODEV; 10005 10006 switch (phba->pci_dev_grp) { 10007 case LPFC_PCI_DEV_LP: 10008 rc = lpfc_pci_suspend_one_s3(pdev, msg); 10009 break; 10010 case LPFC_PCI_DEV_OC: 10011 rc = lpfc_pci_suspend_one_s4(pdev, msg); 10012 break; 10013 default: 10014 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10015 "1425 Invalid PCI device group: 0x%x\n", 10016 phba->pci_dev_grp); 10017 break; 10018 } 10019 return rc; 10020 } 10021 10022 /** 10023 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 10024 * @pdev: pointer to PCI device 10025 * 10026 * This routine is to be registered to the kernel's PCI subsystem to support 10027 * system Power Management (PM). When PM invokes this method, it dispatches 10028 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 10029 * resume the device. 10030 * 10031 * Return code 10032 * 0 - driver suspended the device 10033 * Error otherwise 10034 **/ 10035 static int 10036 lpfc_pci_resume_one(struct pci_dev *pdev) 10037 { 10038 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10039 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10040 int rc = -ENODEV; 10041 10042 switch (phba->pci_dev_grp) { 10043 case LPFC_PCI_DEV_LP: 10044 rc = lpfc_pci_resume_one_s3(pdev); 10045 break; 10046 case LPFC_PCI_DEV_OC: 10047 rc = lpfc_pci_resume_one_s4(pdev); 10048 break; 10049 default: 10050 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10051 "1426 Invalid PCI device group: 0x%x\n", 10052 phba->pci_dev_grp); 10053 break; 10054 } 10055 return rc; 10056 } 10057 10058 /** 10059 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 10060 * @pdev: pointer to PCI device. 10061 * @state: the current PCI connection state. 10062 * 10063 * This routine is registered to the PCI subsystem for error handling. This 10064 * function is called by the PCI subsystem after a PCI bus error affecting 10065 * this device has been detected. When this routine is invoked, it dispatches 10066 * the action to the proper SLI-3 or SLI-4 device error detected handling 10067 * routine, which will perform the proper error detected operation. 10068 * 10069 * Return codes 10070 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10071 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10072 **/ 10073 static pci_ers_result_t 10074 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 10075 { 10076 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10077 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10078 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 10079 10080 switch (phba->pci_dev_grp) { 10081 case LPFC_PCI_DEV_LP: 10082 rc = lpfc_io_error_detected_s3(pdev, state); 10083 break; 10084 case LPFC_PCI_DEV_OC: 10085 rc = lpfc_io_error_detected_s4(pdev, state); 10086 break; 10087 default: 10088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10089 "1427 Invalid PCI device group: 0x%x\n", 10090 phba->pci_dev_grp); 10091 break; 10092 } 10093 return rc; 10094 } 10095 10096 /** 10097 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 10098 * @pdev: pointer to PCI device. 10099 * 10100 * This routine is registered to the PCI subsystem for error handling. This 10101 * function is called after PCI bus has been reset to restart the PCI card 10102 * from scratch, as if from a cold-boot. When this routine is invoked, it 10103 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 10104 * routine, which will perform the proper device reset. 10105 * 10106 * Return codes 10107 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10108 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10109 **/ 10110 static pci_ers_result_t 10111 lpfc_io_slot_reset(struct pci_dev *pdev) 10112 { 10113 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10114 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10115 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 10116 10117 switch (phba->pci_dev_grp) { 10118 case LPFC_PCI_DEV_LP: 10119 rc = lpfc_io_slot_reset_s3(pdev); 10120 break; 10121 case LPFC_PCI_DEV_OC: 10122 rc = lpfc_io_slot_reset_s4(pdev); 10123 break; 10124 default: 10125 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10126 "1428 Invalid PCI device group: 0x%x\n", 10127 phba->pci_dev_grp); 10128 break; 10129 } 10130 return rc; 10131 } 10132 10133 /** 10134 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 10135 * @pdev: pointer to PCI device 10136 * 10137 * This routine is registered to the PCI subsystem for error handling. It 10138 * is called when kernel error recovery tells the lpfc driver that it is 10139 * OK to resume normal PCI operation after PCI bus error recovery. When 10140 * this routine is invoked, it dispatches the action to the proper SLI-3 10141 * or SLI-4 device io_resume routine, which will resume the device operation. 10142 **/ 10143 static void 10144 lpfc_io_resume(struct pci_dev *pdev) 10145 { 10146 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10147 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10148 10149 switch (phba->pci_dev_grp) { 10150 case LPFC_PCI_DEV_LP: 10151 lpfc_io_resume_s3(pdev); 10152 break; 10153 case LPFC_PCI_DEV_OC: 10154 lpfc_io_resume_s4(pdev); 10155 break; 10156 default: 10157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10158 "1429 Invalid PCI device group: 0x%x\n", 10159 phba->pci_dev_grp); 10160 break; 10161 } 10162 return; 10163 } 10164 10165 /** 10166 * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace 10167 * @inode: pointer to the inode representing the lpfcmgmt device 10168 * @filep: pointer to the file representing the open lpfcmgmt device 10169 * 10170 * This routine puts a reference count on the lpfc module whenever the 10171 * character device is opened 10172 **/ 10173 static int 10174 lpfc_mgmt_open(struct inode *inode, struct file *filep) 10175 { 10176 try_module_get(THIS_MODULE); 10177 return 0; 10178 } 10179 10180 /** 10181 * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace 10182 * @inode: pointer to the inode representing the lpfcmgmt device 10183 * @filep: pointer to the file representing the open lpfcmgmt device 10184 * 10185 * This routine removes a reference count from the lpfc module when the 10186 * character device is closed 10187 **/ 10188 static int 10189 lpfc_mgmt_release(struct inode *inode, struct file *filep) 10190 { 10191 module_put(THIS_MODULE); 10192 return 0; 10193 } 10194 10195 static struct pci_device_id lpfc_id_table[] = { 10196 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 10197 PCI_ANY_ID, PCI_ANY_ID, }, 10198 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 10199 PCI_ANY_ID, PCI_ANY_ID, }, 10200 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 10201 PCI_ANY_ID, PCI_ANY_ID, }, 10202 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 10203 PCI_ANY_ID, PCI_ANY_ID, }, 10204 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 10205 PCI_ANY_ID, PCI_ANY_ID, }, 10206 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 10207 PCI_ANY_ID, PCI_ANY_ID, }, 10208 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 10209 PCI_ANY_ID, PCI_ANY_ID, }, 10210 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 10211 PCI_ANY_ID, PCI_ANY_ID, }, 10212 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 10213 PCI_ANY_ID, PCI_ANY_ID, }, 10214 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 10215 PCI_ANY_ID, PCI_ANY_ID, }, 10216 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 10217 PCI_ANY_ID, PCI_ANY_ID, }, 10218 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 10219 PCI_ANY_ID, PCI_ANY_ID, }, 10220 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 10221 PCI_ANY_ID, PCI_ANY_ID, }, 10222 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 10223 PCI_ANY_ID, PCI_ANY_ID, }, 10224 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 10225 PCI_ANY_ID, PCI_ANY_ID, }, 10226 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 10227 PCI_ANY_ID, PCI_ANY_ID, }, 10228 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 10229 PCI_ANY_ID, PCI_ANY_ID, }, 10230 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 10231 PCI_ANY_ID, PCI_ANY_ID, }, 10232 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 10233 PCI_ANY_ID, PCI_ANY_ID, }, 10234 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 10235 PCI_ANY_ID, PCI_ANY_ID, }, 10236 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 10237 PCI_ANY_ID, PCI_ANY_ID, }, 10238 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 10239 PCI_ANY_ID, PCI_ANY_ID, }, 10240 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 10241 PCI_ANY_ID, PCI_ANY_ID, }, 10242 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 10243 PCI_ANY_ID, PCI_ANY_ID, }, 10244 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 10245 PCI_ANY_ID, PCI_ANY_ID, }, 10246 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 10247 PCI_ANY_ID, PCI_ANY_ID, }, 10248 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 10249 PCI_ANY_ID, PCI_ANY_ID, }, 10250 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 10251 PCI_ANY_ID, PCI_ANY_ID, }, 10252 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 10253 PCI_ANY_ID, PCI_ANY_ID, }, 10254 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 10255 PCI_ANY_ID, PCI_ANY_ID, }, 10256 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 10257 PCI_ANY_ID, PCI_ANY_ID, }, 10258 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 10259 PCI_ANY_ID, PCI_ANY_ID, }, 10260 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 10261 PCI_ANY_ID, PCI_ANY_ID, }, 10262 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 10263 PCI_ANY_ID, PCI_ANY_ID, }, 10264 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 10265 PCI_ANY_ID, PCI_ANY_ID, }, 10266 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 10267 PCI_ANY_ID, PCI_ANY_ID, }, 10268 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 10269 PCI_ANY_ID, PCI_ANY_ID, }, 10270 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 10271 PCI_ANY_ID, PCI_ANY_ID, }, 10272 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 10273 PCI_ANY_ID, PCI_ANY_ID, }, 10274 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 10275 PCI_ANY_ID, PCI_ANY_ID, }, 10276 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 10277 PCI_ANY_ID, PCI_ANY_ID, }, 10278 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, 10279 PCI_ANY_ID, PCI_ANY_ID, }, 10280 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, 10281 PCI_ANY_ID, PCI_ANY_ID, }, 10282 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF, 10283 PCI_ANY_ID, PCI_ANY_ID, }, 10284 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF, 10285 PCI_ANY_ID, PCI_ANY_ID, }, 10286 { 0 } 10287 }; 10288 10289 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 10290 10291 static struct pci_error_handlers lpfc_err_handler = { 10292 .error_detected = lpfc_io_error_detected, 10293 .slot_reset = lpfc_io_slot_reset, 10294 .resume = lpfc_io_resume, 10295 }; 10296 10297 static struct pci_driver lpfc_driver = { 10298 .name = LPFC_DRIVER_NAME, 10299 .id_table = lpfc_id_table, 10300 .probe = lpfc_pci_probe_one, 10301 .remove = __devexit_p(lpfc_pci_remove_one), 10302 .suspend = lpfc_pci_suspend_one, 10303 .resume = lpfc_pci_resume_one, 10304 .err_handler = &lpfc_err_handler, 10305 }; 10306 10307 static const struct file_operations lpfc_mgmt_fop = { 10308 .open = lpfc_mgmt_open, 10309 .release = lpfc_mgmt_release, 10310 }; 10311 10312 static struct miscdevice lpfc_mgmt_dev = { 10313 .minor = MISC_DYNAMIC_MINOR, 10314 .name = "lpfcmgmt", 10315 .fops = &lpfc_mgmt_fop, 10316 }; 10317 10318 /** 10319 * lpfc_init - lpfc module initialization routine 10320 * 10321 * This routine is to be invoked when the lpfc module is loaded into the 10322 * kernel. The special kernel macro module_init() is used to indicate the 10323 * role of this routine to the kernel as lpfc module entry point. 10324 * 10325 * Return codes 10326 * 0 - successful 10327 * -ENOMEM - FC attach transport failed 10328 * all others - failed 10329 */ 10330 static int __init 10331 lpfc_init(void) 10332 { 10333 int error = 0; 10334 10335 printk(LPFC_MODULE_DESC "\n"); 10336 printk(LPFC_COPYRIGHT "\n"); 10337 10338 error = misc_register(&lpfc_mgmt_dev); 10339 if (error) 10340 printk(KERN_ERR "Could not register lpfcmgmt device, " 10341 "misc_register returned with status %d", error); 10342 10343 if (lpfc_enable_npiv) { 10344 lpfc_transport_functions.vport_create = lpfc_vport_create; 10345 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 10346 } 10347 lpfc_transport_template = 10348 fc_attach_transport(&lpfc_transport_functions); 10349 if (lpfc_transport_template == NULL) 10350 return -ENOMEM; 10351 if (lpfc_enable_npiv) { 10352 lpfc_vport_transport_template = 10353 fc_attach_transport(&lpfc_vport_transport_functions); 10354 if (lpfc_vport_transport_template == NULL) { 10355 fc_release_transport(lpfc_transport_template); 10356 return -ENOMEM; 10357 } 10358 } 10359 error = pci_register_driver(&lpfc_driver); 10360 if (error) { 10361 fc_release_transport(lpfc_transport_template); 10362 if (lpfc_enable_npiv) 10363 fc_release_transport(lpfc_vport_transport_template); 10364 } 10365 10366 return error; 10367 } 10368 10369 /** 10370 * lpfc_exit - lpfc module removal routine 10371 * 10372 * This routine is invoked when the lpfc module is removed from the kernel. 10373 * The special kernel macro module_exit() is used to indicate the role of 10374 * this routine to the kernel as lpfc module exit point. 10375 */ 10376 static void __exit 10377 lpfc_exit(void) 10378 { 10379 misc_deregister(&lpfc_mgmt_dev); 10380 pci_unregister_driver(&lpfc_driver); 10381 fc_release_transport(lpfc_transport_template); 10382 if (lpfc_enable_npiv) 10383 fc_release_transport(lpfc_vport_transport_template); 10384 if (_dump_buf_data) { 10385 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 10386 "_dump_buf_data at 0x%p\n", 10387 (1L << _dump_buf_data_order), _dump_buf_data); 10388 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 10389 } 10390 10391 if (_dump_buf_dif) { 10392 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 10393 "_dump_buf_dif at 0x%p\n", 10394 (1L << _dump_buf_dif_order), _dump_buf_dif); 10395 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 10396 } 10397 } 10398 10399 module_init(lpfc_init); 10400 module_exit(lpfc_exit); 10401 MODULE_LICENSE("GPL"); 10402 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 10403 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 10404 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 10405