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 static void lpfc_sli4_disable_intr(struct lpfc_hba *); 77 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t); 78 79 static struct scsi_transport_template *lpfc_transport_template = NULL; 80 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 81 static DEFINE_IDR(lpfc_hba_index); 82 83 /** 84 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 85 * @phba: pointer to lpfc hba data structure. 86 * 87 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 88 * mailbox command. It retrieves the revision information from the HBA and 89 * collects the Vital Product Data (VPD) about the HBA for preparing the 90 * configuration of the HBA. 91 * 92 * Return codes: 93 * 0 - success. 94 * -ERESTART - requests the SLI layer to reset the HBA and try again. 95 * Any other value - indicates an error. 96 **/ 97 int 98 lpfc_config_port_prep(struct lpfc_hba *phba) 99 { 100 lpfc_vpd_t *vp = &phba->vpd; 101 int i = 0, rc; 102 LPFC_MBOXQ_t *pmb; 103 MAILBOX_t *mb; 104 char *lpfc_vpd_data = NULL; 105 uint16_t offset = 0; 106 static char licensed[56] = 107 "key unlock for use with gnu public licensed code only\0"; 108 static int init_key = 1; 109 110 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 111 if (!pmb) { 112 phba->link_state = LPFC_HBA_ERROR; 113 return -ENOMEM; 114 } 115 116 mb = &pmb->u.mb; 117 phba->link_state = LPFC_INIT_MBX_CMDS; 118 119 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 120 if (init_key) { 121 uint32_t *ptext = (uint32_t *) licensed; 122 123 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 124 *ptext = cpu_to_be32(*ptext); 125 init_key = 0; 126 } 127 128 lpfc_read_nv(phba, pmb); 129 memset((char*)mb->un.varRDnvp.rsvd3, 0, 130 sizeof (mb->un.varRDnvp.rsvd3)); 131 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 132 sizeof (licensed)); 133 134 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 135 136 if (rc != MBX_SUCCESS) { 137 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 138 "0324 Config Port initialization " 139 "error, mbxCmd x%x READ_NVPARM, " 140 "mbxStatus x%x\n", 141 mb->mbxCommand, mb->mbxStatus); 142 mempool_free(pmb, phba->mbox_mem_pool); 143 return -ERESTART; 144 } 145 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 146 sizeof(phba->wwnn)); 147 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 148 sizeof(phba->wwpn)); 149 } 150 151 phba->sli3_options = 0x0; 152 153 /* Setup and issue mailbox READ REV command */ 154 lpfc_read_rev(phba, pmb); 155 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 156 if (rc != MBX_SUCCESS) { 157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 158 "0439 Adapter failed to init, mbxCmd x%x " 159 "READ_REV, mbxStatus x%x\n", 160 mb->mbxCommand, mb->mbxStatus); 161 mempool_free( pmb, phba->mbox_mem_pool); 162 return -ERESTART; 163 } 164 165 166 /* 167 * The value of rr must be 1 since the driver set the cv field to 1. 168 * This setting requires the FW to set all revision fields. 169 */ 170 if (mb->un.varRdRev.rr == 0) { 171 vp->rev.rBit = 0; 172 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 173 "0440 Adapter failed to init, READ_REV has " 174 "missing revision information.\n"); 175 mempool_free(pmb, phba->mbox_mem_pool); 176 return -ERESTART; 177 } 178 179 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 180 mempool_free(pmb, phba->mbox_mem_pool); 181 return -EINVAL; 182 } 183 184 /* Save information as VPD data */ 185 vp->rev.rBit = 1; 186 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 187 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 188 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 189 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 190 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 191 vp->rev.biuRev = mb->un.varRdRev.biuRev; 192 vp->rev.smRev = mb->un.varRdRev.smRev; 193 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 194 vp->rev.endecRev = mb->un.varRdRev.endecRev; 195 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 196 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 197 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 198 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 199 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 200 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 201 202 /* If the sli feature level is less then 9, we must 203 * tear down all RPIs and VPIs on link down if NPIV 204 * is enabled. 205 */ 206 if (vp->rev.feaLevelHigh < 9) 207 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 208 209 if (lpfc_is_LC_HBA(phba->pcidev->device)) 210 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 211 sizeof (phba->RandomData)); 212 213 /* Get adapter VPD information */ 214 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 215 if (!lpfc_vpd_data) 216 goto out_free_mbox; 217 do { 218 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 219 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 220 221 if (rc != MBX_SUCCESS) { 222 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 223 "0441 VPD not present on adapter, " 224 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 225 mb->mbxCommand, mb->mbxStatus); 226 mb->un.varDmp.word_cnt = 0; 227 } 228 /* dump mem may return a zero when finished or we got a 229 * mailbox error, either way we are done. 230 */ 231 if (mb->un.varDmp.word_cnt == 0) 232 break; 233 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 234 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 235 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 236 lpfc_vpd_data + offset, 237 mb->un.varDmp.word_cnt); 238 offset += mb->un.varDmp.word_cnt; 239 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 240 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 241 242 kfree(lpfc_vpd_data); 243 out_free_mbox: 244 mempool_free(pmb, phba->mbox_mem_pool); 245 return 0; 246 } 247 248 /** 249 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 250 * @phba: pointer to lpfc hba data structure. 251 * @pmboxq: pointer to the driver internal queue element for mailbox command. 252 * 253 * This is the completion handler for driver's configuring asynchronous event 254 * mailbox command to the device. If the mailbox command returns successfully, 255 * it will set internal async event support flag to 1; otherwise, it will 256 * set internal async event support flag to 0. 257 **/ 258 static void 259 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 260 { 261 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 262 phba->temp_sensor_support = 1; 263 else 264 phba->temp_sensor_support = 0; 265 mempool_free(pmboxq, phba->mbox_mem_pool); 266 return; 267 } 268 269 /** 270 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 271 * @phba: pointer to lpfc hba data structure. 272 * @pmboxq: pointer to the driver internal queue element for mailbox command. 273 * 274 * This is the completion handler for dump mailbox command for getting 275 * wake up parameters. When this command complete, the response contain 276 * Option rom version of the HBA. This function translate the version number 277 * into a human readable string and store it in OptionROMVersion. 278 **/ 279 static void 280 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 281 { 282 struct prog_id *prg; 283 uint32_t prog_id_word; 284 char dist = ' '; 285 /* character array used for decoding dist type. */ 286 char dist_char[] = "nabx"; 287 288 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 289 mempool_free(pmboxq, phba->mbox_mem_pool); 290 return; 291 } 292 293 prg = (struct prog_id *) &prog_id_word; 294 295 /* word 7 contain option rom version */ 296 prog_id_word = pmboxq->u.mb.un.varWords[7]; 297 298 /* Decode the Option rom version word to a readable string */ 299 if (prg->dist < 4) 300 dist = dist_char[prg->dist]; 301 302 if ((prg->dist == 3) && (prg->num == 0)) 303 sprintf(phba->OptionROMVersion, "%d.%d%d", 304 prg->ver, prg->rev, prg->lev); 305 else 306 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 307 prg->ver, prg->rev, prg->lev, 308 dist, prg->num); 309 mempool_free(pmboxq, phba->mbox_mem_pool); 310 return; 311 } 312 313 /** 314 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 315 * cfg_soft_wwnn, cfg_soft_wwpn 316 * @vport: pointer to lpfc vport data structure. 317 * 318 * 319 * Return codes 320 * None. 321 **/ 322 void 323 lpfc_update_vport_wwn(struct lpfc_vport *vport) 324 { 325 /* If the soft name exists then update it using the service params */ 326 if (vport->phba->cfg_soft_wwnn) 327 u64_to_wwn(vport->phba->cfg_soft_wwnn, 328 vport->fc_sparam.nodeName.u.wwn); 329 if (vport->phba->cfg_soft_wwpn) 330 u64_to_wwn(vport->phba->cfg_soft_wwpn, 331 vport->fc_sparam.portName.u.wwn); 332 333 /* 334 * If the name is empty or there exists a soft name 335 * then copy the service params name, otherwise use the fc name 336 */ 337 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 338 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 339 sizeof(struct lpfc_name)); 340 else 341 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 342 sizeof(struct lpfc_name)); 343 344 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn) 345 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 346 sizeof(struct lpfc_name)); 347 else 348 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 349 sizeof(struct lpfc_name)); 350 } 351 352 /** 353 * lpfc_config_port_post - Perform lpfc initialization after config port 354 * @phba: pointer to lpfc hba data structure. 355 * 356 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 357 * command call. It performs all internal resource and state setups on the 358 * port: post IOCB buffers, enable appropriate host interrupt attentions, 359 * ELS ring timers, etc. 360 * 361 * Return codes 362 * 0 - success. 363 * Any other value - error. 364 **/ 365 int 366 lpfc_config_port_post(struct lpfc_hba *phba) 367 { 368 struct lpfc_vport *vport = phba->pport; 369 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 370 LPFC_MBOXQ_t *pmb; 371 MAILBOX_t *mb; 372 struct lpfc_dmabuf *mp; 373 struct lpfc_sli *psli = &phba->sli; 374 uint32_t status, timeout; 375 int i, j; 376 int rc; 377 378 spin_lock_irq(&phba->hbalock); 379 /* 380 * If the Config port completed correctly the HBA is not 381 * over heated any more. 382 */ 383 if (phba->over_temp_state == HBA_OVER_TEMP) 384 phba->over_temp_state = HBA_NORMAL_TEMP; 385 spin_unlock_irq(&phba->hbalock); 386 387 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 388 if (!pmb) { 389 phba->link_state = LPFC_HBA_ERROR; 390 return -ENOMEM; 391 } 392 mb = &pmb->u.mb; 393 394 /* Get login parameters for NID. */ 395 rc = lpfc_read_sparam(phba, pmb, 0); 396 if (rc) { 397 mempool_free(pmb, phba->mbox_mem_pool); 398 return -ENOMEM; 399 } 400 401 pmb->vport = vport; 402 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 404 "0448 Adapter failed init, mbxCmd x%x " 405 "READ_SPARM mbxStatus x%x\n", 406 mb->mbxCommand, mb->mbxStatus); 407 phba->link_state = LPFC_HBA_ERROR; 408 mp = (struct lpfc_dmabuf *) pmb->context1; 409 mempool_free(pmb, phba->mbox_mem_pool); 410 lpfc_mbuf_free(phba, mp->virt, mp->phys); 411 kfree(mp); 412 return -EIO; 413 } 414 415 mp = (struct lpfc_dmabuf *) pmb->context1; 416 417 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 418 lpfc_mbuf_free(phba, mp->virt, mp->phys); 419 kfree(mp); 420 pmb->context1 = NULL; 421 lpfc_update_vport_wwn(vport); 422 423 /* Update the fc_host data structures with new wwn. */ 424 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 425 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 426 fc_host_max_npiv_vports(shost) = phba->max_vpi; 427 428 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 429 /* This should be consolidated into parse_vpd ? - mr */ 430 if (phba->SerialNumber[0] == 0) { 431 uint8_t *outptr; 432 433 outptr = &vport->fc_nodename.u.s.IEEE[0]; 434 for (i = 0; i < 12; i++) { 435 status = *outptr++; 436 j = ((status & 0xf0) >> 4); 437 if (j <= 9) 438 phba->SerialNumber[i] = 439 (char)((uint8_t) 0x30 + (uint8_t) j); 440 else 441 phba->SerialNumber[i] = 442 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 443 i++; 444 j = (status & 0xf); 445 if (j <= 9) 446 phba->SerialNumber[i] = 447 (char)((uint8_t) 0x30 + (uint8_t) j); 448 else 449 phba->SerialNumber[i] = 450 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 451 } 452 } 453 454 lpfc_read_config(phba, pmb); 455 pmb->vport = vport; 456 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 457 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 458 "0453 Adapter failed to init, mbxCmd x%x " 459 "READ_CONFIG, mbxStatus x%x\n", 460 mb->mbxCommand, mb->mbxStatus); 461 phba->link_state = LPFC_HBA_ERROR; 462 mempool_free( pmb, phba->mbox_mem_pool); 463 return -EIO; 464 } 465 466 /* Check if the port is disabled */ 467 lpfc_sli_read_link_ste(phba); 468 469 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 470 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 471 phba->cfg_hba_queue_depth = 472 (mb->un.varRdConfig.max_xri + 1) - 473 lpfc_sli4_get_els_iocb_cnt(phba); 474 475 phba->lmt = mb->un.varRdConfig.lmt; 476 477 /* Get the default values for Model Name and Description */ 478 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 479 480 phba->link_state = LPFC_LINK_DOWN; 481 482 /* Only process IOCBs on ELS ring till hba_state is READY */ 483 if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr) 484 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 485 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr) 486 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 487 if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr) 488 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 489 490 /* Post receive buffers for desired rings */ 491 if (phba->sli_rev != 3) 492 lpfc_post_rcv_buf(phba); 493 494 /* 495 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 496 */ 497 if (phba->intr_type == MSIX) { 498 rc = lpfc_config_msi(phba, pmb); 499 if (rc) { 500 mempool_free(pmb, phba->mbox_mem_pool); 501 return -EIO; 502 } 503 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 504 if (rc != MBX_SUCCESS) { 505 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 506 "0352 Config MSI mailbox command " 507 "failed, mbxCmd x%x, mbxStatus x%x\n", 508 pmb->u.mb.mbxCommand, 509 pmb->u.mb.mbxStatus); 510 mempool_free(pmb, phba->mbox_mem_pool); 511 return -EIO; 512 } 513 } 514 515 spin_lock_irq(&phba->hbalock); 516 /* Initialize ERATT handling flag */ 517 phba->hba_flag &= ~HBA_ERATT_HANDLED; 518 519 /* Enable appropriate host interrupts */ 520 if (lpfc_readl(phba->HCregaddr, &status)) { 521 spin_unlock_irq(&phba->hbalock); 522 return -EIO; 523 } 524 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 525 if (psli->num_rings > 0) 526 status |= HC_R0INT_ENA; 527 if (psli->num_rings > 1) 528 status |= HC_R1INT_ENA; 529 if (psli->num_rings > 2) 530 status |= HC_R2INT_ENA; 531 if (psli->num_rings > 3) 532 status |= HC_R3INT_ENA; 533 534 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 535 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 536 status &= ~(HC_R0INT_ENA); 537 538 writel(status, phba->HCregaddr); 539 readl(phba->HCregaddr); /* flush */ 540 spin_unlock_irq(&phba->hbalock); 541 542 /* Set up ring-0 (ELS) timer */ 543 timeout = phba->fc_ratov * 2; 544 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 545 /* Set up heart beat (HB) timer */ 546 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 547 phba->hb_outstanding = 0; 548 phba->last_completion_time = jiffies; 549 /* Set up error attention (ERATT) polling timer */ 550 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 551 552 if (phba->hba_flag & LINK_DISABLED) { 553 lpfc_printf_log(phba, 554 KERN_ERR, LOG_INIT, 555 "2598 Adapter Link is disabled.\n"); 556 lpfc_down_link(phba, pmb); 557 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 558 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 559 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 560 lpfc_printf_log(phba, 561 KERN_ERR, LOG_INIT, 562 "2599 Adapter failed to issue DOWN_LINK" 563 " mbox command rc 0x%x\n", rc); 564 565 mempool_free(pmb, phba->mbox_mem_pool); 566 return -EIO; 567 } 568 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 569 mempool_free(pmb, phba->mbox_mem_pool); 570 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 571 if (rc) 572 return rc; 573 } 574 /* MBOX buffer will be freed in mbox compl */ 575 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 576 if (!pmb) { 577 phba->link_state = LPFC_HBA_ERROR; 578 return -ENOMEM; 579 } 580 581 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 582 pmb->mbox_cmpl = lpfc_config_async_cmpl; 583 pmb->vport = phba->pport; 584 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 585 586 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 587 lpfc_printf_log(phba, 588 KERN_ERR, 589 LOG_INIT, 590 "0456 Adapter failed to issue " 591 "ASYNCEVT_ENABLE mbox status x%x\n", 592 rc); 593 mempool_free(pmb, phba->mbox_mem_pool); 594 } 595 596 /* Get Option rom version */ 597 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 598 if (!pmb) { 599 phba->link_state = LPFC_HBA_ERROR; 600 return -ENOMEM; 601 } 602 603 lpfc_dump_wakeup_param(phba, pmb); 604 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 605 pmb->vport = phba->pport; 606 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 607 608 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 610 "to get Option ROM version status x%x\n", rc); 611 mempool_free(pmb, phba->mbox_mem_pool); 612 } 613 614 return 0; 615 } 616 617 /** 618 * lpfc_hba_init_link - Initialize the FC link 619 * @phba: pointer to lpfc hba data structure. 620 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 621 * 622 * This routine will issue the INIT_LINK mailbox command call. 623 * It is available to other drivers through the lpfc_hba data 624 * structure for use as a delayed link up mechanism with the 625 * module parameter lpfc_suppress_link_up. 626 * 627 * Return code 628 * 0 - success 629 * Any other value - error 630 **/ 631 int 632 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 633 { 634 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); 635 } 636 637 /** 638 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology 639 * @phba: pointer to lpfc hba data structure. 640 * @fc_topology: desired fc topology. 641 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 642 * 643 * This routine will issue the INIT_LINK mailbox command call. 644 * It is available to other drivers through the lpfc_hba data 645 * structure for use as a delayed link up mechanism with the 646 * module parameter lpfc_suppress_link_up. 647 * 648 * Return code 649 * 0 - success 650 * Any other value - error 651 **/ 652 int 653 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, 654 uint32_t flag) 655 { 656 struct lpfc_vport *vport = phba->pport; 657 LPFC_MBOXQ_t *pmb; 658 MAILBOX_t *mb; 659 int rc; 660 661 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 662 if (!pmb) { 663 phba->link_state = LPFC_HBA_ERROR; 664 return -ENOMEM; 665 } 666 mb = &pmb->u.mb; 667 pmb->vport = vport; 668 669 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || 670 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && 671 !(phba->lmt & LMT_1Gb)) || 672 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && 673 !(phba->lmt & LMT_2Gb)) || 674 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && 675 !(phba->lmt & LMT_4Gb)) || 676 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && 677 !(phba->lmt & LMT_8Gb)) || 678 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && 679 !(phba->lmt & LMT_10Gb)) || 680 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && 681 !(phba->lmt & LMT_16Gb))) { 682 /* Reset link speed to auto */ 683 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 684 "1302 Invalid speed for this board:%d " 685 "Reset link speed to auto.\n", 686 phba->cfg_link_speed); 687 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 688 } 689 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); 690 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 691 if (phba->sli_rev < LPFC_SLI_REV4) 692 lpfc_set_loopback_flag(phba); 693 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 694 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 696 "0498 Adapter failed to init, mbxCmd x%x " 697 "INIT_LINK, mbxStatus x%x\n", 698 mb->mbxCommand, mb->mbxStatus); 699 if (phba->sli_rev <= LPFC_SLI_REV3) { 700 /* Clear all interrupt enable conditions */ 701 writel(0, phba->HCregaddr); 702 readl(phba->HCregaddr); /* flush */ 703 /* Clear all pending interrupts */ 704 writel(0xffffffff, phba->HAregaddr); 705 readl(phba->HAregaddr); /* flush */ 706 } 707 phba->link_state = LPFC_HBA_ERROR; 708 if (rc != MBX_BUSY || flag == MBX_POLL) 709 mempool_free(pmb, phba->mbox_mem_pool); 710 return -EIO; 711 } 712 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 713 if (flag == MBX_POLL) 714 mempool_free(pmb, phba->mbox_mem_pool); 715 716 return 0; 717 } 718 719 /** 720 * lpfc_hba_down_link - this routine downs the FC link 721 * @phba: pointer to lpfc hba data structure. 722 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 723 * 724 * This routine will issue the DOWN_LINK mailbox command call. 725 * It is available to other drivers through the lpfc_hba data 726 * structure for use to stop the link. 727 * 728 * Return code 729 * 0 - success 730 * Any other value - error 731 **/ 732 int 733 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 734 { 735 LPFC_MBOXQ_t *pmb; 736 int rc; 737 738 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 739 if (!pmb) { 740 phba->link_state = LPFC_HBA_ERROR; 741 return -ENOMEM; 742 } 743 744 lpfc_printf_log(phba, 745 KERN_ERR, LOG_INIT, 746 "0491 Adapter Link is disabled.\n"); 747 lpfc_down_link(phba, pmb); 748 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 749 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 750 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 751 lpfc_printf_log(phba, 752 KERN_ERR, LOG_INIT, 753 "2522 Adapter failed to issue DOWN_LINK" 754 " mbox command rc 0x%x\n", rc); 755 756 mempool_free(pmb, phba->mbox_mem_pool); 757 return -EIO; 758 } 759 if (flag == MBX_POLL) 760 mempool_free(pmb, phba->mbox_mem_pool); 761 762 return 0; 763 } 764 765 /** 766 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 767 * @phba: pointer to lpfc HBA data structure. 768 * 769 * This routine will do LPFC uninitialization before the HBA is reset when 770 * bringing down the SLI Layer. 771 * 772 * Return codes 773 * 0 - success. 774 * Any other value - error. 775 **/ 776 int 777 lpfc_hba_down_prep(struct lpfc_hba *phba) 778 { 779 struct lpfc_vport **vports; 780 int i; 781 782 if (phba->sli_rev <= LPFC_SLI_REV3) { 783 /* Disable interrupts */ 784 writel(0, phba->HCregaddr); 785 readl(phba->HCregaddr); /* flush */ 786 } 787 788 if (phba->pport->load_flag & FC_UNLOADING) 789 lpfc_cleanup_discovery_resources(phba->pport); 790 else { 791 vports = lpfc_create_vport_work_array(phba); 792 if (vports != NULL) 793 for (i = 0; i <= phba->max_vports && 794 vports[i] != NULL; i++) 795 lpfc_cleanup_discovery_resources(vports[i]); 796 lpfc_destroy_vport_work_array(phba, vports); 797 } 798 return 0; 799 } 800 801 /** 802 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 803 * @phba: pointer to lpfc HBA data structure. 804 * 805 * This routine will do uninitialization after the HBA is reset when bring 806 * down the SLI Layer. 807 * 808 * Return codes 809 * 0 - success. 810 * Any other value - error. 811 **/ 812 static int 813 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 814 { 815 struct lpfc_sli *psli = &phba->sli; 816 struct lpfc_sli_ring *pring; 817 struct lpfc_dmabuf *mp, *next_mp; 818 LIST_HEAD(completions); 819 int i; 820 821 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 822 lpfc_sli_hbqbuf_free_all(phba); 823 else { 824 /* Cleanup preposted buffers on the ELS ring */ 825 pring = &psli->ring[LPFC_ELS_RING]; 826 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 827 list_del(&mp->list); 828 pring->postbufq_cnt--; 829 lpfc_mbuf_free(phba, mp->virt, mp->phys); 830 kfree(mp); 831 } 832 } 833 834 spin_lock_irq(&phba->hbalock); 835 for (i = 0; i < psli->num_rings; i++) { 836 pring = &psli->ring[i]; 837 838 /* At this point in time the HBA is either reset or DOA. Either 839 * way, nothing should be on txcmplq as it will NEVER complete. 840 */ 841 list_splice_init(&pring->txcmplq, &completions); 842 pring->txcmplq_cnt = 0; 843 spin_unlock_irq(&phba->hbalock); 844 845 /* Cancel all the IOCBs from the completions list */ 846 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 847 IOERR_SLI_ABORTED); 848 849 lpfc_sli_abort_iocb_ring(phba, pring); 850 spin_lock_irq(&phba->hbalock); 851 } 852 spin_unlock_irq(&phba->hbalock); 853 854 return 0; 855 } 856 857 /** 858 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 859 * @phba: pointer to lpfc HBA data structure. 860 * 861 * This routine will do uninitialization after the HBA is reset when bring 862 * down the SLI Layer. 863 * 864 * Return codes 865 * 0 - success. 866 * Any other value - error. 867 **/ 868 static int 869 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 870 { 871 struct lpfc_scsi_buf *psb, *psb_next; 872 LIST_HEAD(aborts); 873 int ret; 874 unsigned long iflag = 0; 875 struct lpfc_sglq *sglq_entry = NULL; 876 877 ret = lpfc_hba_down_post_s3(phba); 878 if (ret) 879 return ret; 880 /* At this point in time the HBA is either reset or DOA. Either 881 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 882 * on the lpfc_sgl_list so that it can either be freed if the 883 * driver is unloading or reposted if the driver is restarting 884 * the port. 885 */ 886 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 887 /* scsl_buf_list */ 888 /* abts_sgl_list_lock required because worker thread uses this 889 * list. 890 */ 891 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 892 list_for_each_entry(sglq_entry, 893 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 894 sglq_entry->state = SGL_FREED; 895 896 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 897 &phba->sli4_hba.lpfc_sgl_list); 898 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 899 /* abts_scsi_buf_list_lock required because worker thread uses this 900 * list. 901 */ 902 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 903 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 904 &aborts); 905 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 906 spin_unlock_irq(&phba->hbalock); 907 908 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 909 psb->pCmd = NULL; 910 psb->status = IOSTAT_SUCCESS; 911 } 912 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 913 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 914 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 915 return 0; 916 } 917 918 /** 919 * lpfc_hba_down_post - Wrapper func for hba down post routine 920 * @phba: pointer to lpfc HBA data structure. 921 * 922 * This routine wraps the actual SLI3 or SLI4 routine for performing 923 * uninitialization after the HBA is reset when bring down the SLI Layer. 924 * 925 * Return codes 926 * 0 - success. 927 * Any other value - error. 928 **/ 929 int 930 lpfc_hba_down_post(struct lpfc_hba *phba) 931 { 932 return (*phba->lpfc_hba_down_post)(phba); 933 } 934 935 /** 936 * lpfc_hb_timeout - The HBA-timer timeout handler 937 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 938 * 939 * This is the HBA-timer timeout handler registered to the lpfc driver. When 940 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 941 * work-port-events bitmap and the worker thread is notified. This timeout 942 * event will be used by the worker thread to invoke the actual timeout 943 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 944 * be performed in the timeout handler and the HBA timeout event bit shall 945 * be cleared by the worker thread after it has taken the event bitmap out. 946 **/ 947 static void 948 lpfc_hb_timeout(unsigned long ptr) 949 { 950 struct lpfc_hba *phba; 951 uint32_t tmo_posted; 952 unsigned long iflag; 953 954 phba = (struct lpfc_hba *)ptr; 955 956 /* Check for heart beat timeout conditions */ 957 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 958 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 959 if (!tmo_posted) 960 phba->pport->work_port_events |= WORKER_HB_TMO; 961 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 962 963 /* Tell the worker thread there is work to do */ 964 if (!tmo_posted) 965 lpfc_worker_wake_up(phba); 966 return; 967 } 968 969 /** 970 * lpfc_rrq_timeout - The RRQ-timer timeout handler 971 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 972 * 973 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 974 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 975 * work-port-events bitmap and the worker thread is notified. This timeout 976 * event will be used by the worker thread to invoke the actual timeout 977 * handler routine, lpfc_rrq_handler. Any periodical operations will 978 * be performed in the timeout handler and the RRQ timeout event bit shall 979 * be cleared by the worker thread after it has taken the event bitmap out. 980 **/ 981 static void 982 lpfc_rrq_timeout(unsigned long ptr) 983 { 984 struct lpfc_hba *phba; 985 unsigned long iflag; 986 987 phba = (struct lpfc_hba *)ptr; 988 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 989 phba->hba_flag |= HBA_RRQ_ACTIVE; 990 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 991 lpfc_worker_wake_up(phba); 992 } 993 994 /** 995 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 996 * @phba: pointer to lpfc hba data structure. 997 * @pmboxq: pointer to the driver internal queue element for mailbox command. 998 * 999 * This is the callback function to the lpfc heart-beat mailbox command. 1000 * If configured, the lpfc driver issues the heart-beat mailbox command to 1001 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 1002 * heart-beat mailbox command is issued, the driver shall set up heart-beat 1003 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 1004 * heart-beat outstanding state. Once the mailbox command comes back and 1005 * no error conditions detected, the heart-beat mailbox command timer is 1006 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1007 * state is cleared for the next heart-beat. If the timer expired with the 1008 * heart-beat outstanding state set, the driver will put the HBA offline. 1009 **/ 1010 static void 1011 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1012 { 1013 unsigned long drvr_flag; 1014 1015 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1016 phba->hb_outstanding = 0; 1017 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1018 1019 /* Check and reset heart-beat timer is necessary */ 1020 mempool_free(pmboxq, phba->mbox_mem_pool); 1021 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1022 !(phba->link_state == LPFC_HBA_ERROR) && 1023 !(phba->pport->load_flag & FC_UNLOADING)) 1024 mod_timer(&phba->hb_tmofunc, 1025 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1026 return; 1027 } 1028 1029 /** 1030 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1031 * @phba: pointer to lpfc hba data structure. 1032 * 1033 * This is the actual HBA-timer timeout handler to be invoked by the worker 1034 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1035 * handler performs any periodic operations needed for the device. If such 1036 * periodic event has already been attended to either in the interrupt handler 1037 * or by processing slow-ring or fast-ring events within the HBA-timer 1038 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1039 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1040 * is configured and there is no heart-beat mailbox command outstanding, a 1041 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1042 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1043 * to offline. 1044 **/ 1045 void 1046 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1047 { 1048 struct lpfc_vport **vports; 1049 LPFC_MBOXQ_t *pmboxq; 1050 struct lpfc_dmabuf *buf_ptr; 1051 int retval, i; 1052 struct lpfc_sli *psli = &phba->sli; 1053 LIST_HEAD(completions); 1054 1055 vports = lpfc_create_vport_work_array(phba); 1056 if (vports != NULL) 1057 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1058 lpfc_rcv_seq_check_edtov(vports[i]); 1059 lpfc_destroy_vport_work_array(phba, vports); 1060 1061 if ((phba->link_state == LPFC_HBA_ERROR) || 1062 (phba->pport->load_flag & FC_UNLOADING) || 1063 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1064 return; 1065 1066 spin_lock_irq(&phba->pport->work_port_lock); 1067 1068 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 1069 jiffies)) { 1070 spin_unlock_irq(&phba->pport->work_port_lock); 1071 if (!phba->hb_outstanding) 1072 mod_timer(&phba->hb_tmofunc, 1073 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1074 else 1075 mod_timer(&phba->hb_tmofunc, 1076 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1077 return; 1078 } 1079 spin_unlock_irq(&phba->pport->work_port_lock); 1080 1081 if (phba->elsbuf_cnt && 1082 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1083 spin_lock_irq(&phba->hbalock); 1084 list_splice_init(&phba->elsbuf, &completions); 1085 phba->elsbuf_cnt = 0; 1086 phba->elsbuf_prev_cnt = 0; 1087 spin_unlock_irq(&phba->hbalock); 1088 1089 while (!list_empty(&completions)) { 1090 list_remove_head(&completions, buf_ptr, 1091 struct lpfc_dmabuf, list); 1092 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1093 kfree(buf_ptr); 1094 } 1095 } 1096 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1097 1098 /* If there is no heart beat outstanding, issue a heartbeat command */ 1099 if (phba->cfg_enable_hba_heartbeat) { 1100 if (!phba->hb_outstanding) { 1101 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1102 (list_empty(&psli->mboxq))) { 1103 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1104 GFP_KERNEL); 1105 if (!pmboxq) { 1106 mod_timer(&phba->hb_tmofunc, 1107 jiffies + 1108 HZ * LPFC_HB_MBOX_INTERVAL); 1109 return; 1110 } 1111 1112 lpfc_heart_beat(phba, pmboxq); 1113 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1114 pmboxq->vport = phba->pport; 1115 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1116 MBX_NOWAIT); 1117 1118 if (retval != MBX_BUSY && 1119 retval != MBX_SUCCESS) { 1120 mempool_free(pmboxq, 1121 phba->mbox_mem_pool); 1122 mod_timer(&phba->hb_tmofunc, 1123 jiffies + 1124 HZ * LPFC_HB_MBOX_INTERVAL); 1125 return; 1126 } 1127 phba->skipped_hb = 0; 1128 phba->hb_outstanding = 1; 1129 } else if (time_before_eq(phba->last_completion_time, 1130 phba->skipped_hb)) { 1131 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1132 "2857 Last completion time not " 1133 " updated in %d ms\n", 1134 jiffies_to_msecs(jiffies 1135 - phba->last_completion_time)); 1136 } else 1137 phba->skipped_hb = jiffies; 1138 1139 mod_timer(&phba->hb_tmofunc, 1140 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1141 return; 1142 } else { 1143 /* 1144 * If heart beat timeout called with hb_outstanding set 1145 * we need to give the hb mailbox cmd a chance to 1146 * complete or TMO. 1147 */ 1148 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1149 "0459 Adapter heartbeat still out" 1150 "standing:last compl time was %d ms.\n", 1151 jiffies_to_msecs(jiffies 1152 - phba->last_completion_time)); 1153 mod_timer(&phba->hb_tmofunc, 1154 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1155 } 1156 } 1157 } 1158 1159 /** 1160 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1161 * @phba: pointer to lpfc hba data structure. 1162 * 1163 * This routine is called to bring the HBA offline when HBA hardware error 1164 * other than Port Error 6 has been detected. 1165 **/ 1166 static void 1167 lpfc_offline_eratt(struct lpfc_hba *phba) 1168 { 1169 struct lpfc_sli *psli = &phba->sli; 1170 1171 spin_lock_irq(&phba->hbalock); 1172 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1173 spin_unlock_irq(&phba->hbalock); 1174 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1175 1176 lpfc_offline(phba); 1177 lpfc_reset_barrier(phba); 1178 spin_lock_irq(&phba->hbalock); 1179 lpfc_sli_brdreset(phba); 1180 spin_unlock_irq(&phba->hbalock); 1181 lpfc_hba_down_post(phba); 1182 lpfc_sli_brdready(phba, HS_MBRDY); 1183 lpfc_unblock_mgmt_io(phba); 1184 phba->link_state = LPFC_HBA_ERROR; 1185 return; 1186 } 1187 1188 /** 1189 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1190 * @phba: pointer to lpfc hba data structure. 1191 * 1192 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1193 * other than Port Error 6 has been detected. 1194 **/ 1195 static void 1196 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1197 { 1198 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1199 lpfc_offline(phba); 1200 lpfc_sli4_brdreset(phba); 1201 lpfc_hba_down_post(phba); 1202 lpfc_sli4_post_status_check(phba); 1203 lpfc_unblock_mgmt_io(phba); 1204 phba->link_state = LPFC_HBA_ERROR; 1205 } 1206 1207 /** 1208 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1209 * @phba: pointer to lpfc hba data structure. 1210 * 1211 * This routine is invoked to handle the deferred HBA hardware error 1212 * conditions. This type of error is indicated by HBA by setting ER1 1213 * and another ER bit in the host status register. The driver will 1214 * wait until the ER1 bit clears before handling the error condition. 1215 **/ 1216 static void 1217 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1218 { 1219 uint32_t old_host_status = phba->work_hs; 1220 struct lpfc_sli_ring *pring; 1221 struct lpfc_sli *psli = &phba->sli; 1222 1223 /* If the pci channel is offline, ignore possible errors, 1224 * since we cannot communicate with the pci card anyway. 1225 */ 1226 if (pci_channel_offline(phba->pcidev)) { 1227 spin_lock_irq(&phba->hbalock); 1228 phba->hba_flag &= ~DEFER_ERATT; 1229 spin_unlock_irq(&phba->hbalock); 1230 return; 1231 } 1232 1233 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1234 "0479 Deferred Adapter Hardware Error " 1235 "Data: x%x x%x x%x\n", 1236 phba->work_hs, 1237 phba->work_status[0], phba->work_status[1]); 1238 1239 spin_lock_irq(&phba->hbalock); 1240 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1241 spin_unlock_irq(&phba->hbalock); 1242 1243 1244 /* 1245 * Firmware stops when it triggred erratt. That could cause the I/Os 1246 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1247 * SCSI layer retry it after re-establishing link. 1248 */ 1249 pring = &psli->ring[psli->fcp_ring]; 1250 lpfc_sli_abort_iocb_ring(phba, pring); 1251 1252 /* 1253 * There was a firmware error. Take the hba offline and then 1254 * attempt to restart it. 1255 */ 1256 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 1257 lpfc_offline(phba); 1258 1259 /* Wait for the ER1 bit to clear.*/ 1260 while (phba->work_hs & HS_FFER1) { 1261 msleep(100); 1262 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1263 phba->work_hs = UNPLUG_ERR ; 1264 break; 1265 } 1266 /* If driver is unloading let the worker thread continue */ 1267 if (phba->pport->load_flag & FC_UNLOADING) { 1268 phba->work_hs = 0; 1269 break; 1270 } 1271 } 1272 1273 /* 1274 * This is to ptrotect against a race condition in which 1275 * first write to the host attention register clear the 1276 * host status register. 1277 */ 1278 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1279 phba->work_hs = old_host_status & ~HS_FFER1; 1280 1281 spin_lock_irq(&phba->hbalock); 1282 phba->hba_flag &= ~DEFER_ERATT; 1283 spin_unlock_irq(&phba->hbalock); 1284 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1285 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1286 } 1287 1288 static void 1289 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1290 { 1291 struct lpfc_board_event_header board_event; 1292 struct Scsi_Host *shost; 1293 1294 board_event.event_type = FC_REG_BOARD_EVENT; 1295 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1296 shost = lpfc_shost_from_vport(phba->pport); 1297 fc_host_post_vendor_event(shost, fc_get_event_number(), 1298 sizeof(board_event), 1299 (char *) &board_event, 1300 LPFC_NL_VENDOR_ID); 1301 } 1302 1303 /** 1304 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1305 * @phba: pointer to lpfc hba data structure. 1306 * 1307 * This routine is invoked to handle the following HBA hardware error 1308 * conditions: 1309 * 1 - HBA error attention interrupt 1310 * 2 - DMA ring index out of range 1311 * 3 - Mailbox command came back as unknown 1312 **/ 1313 static void 1314 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1315 { 1316 struct lpfc_vport *vport = phba->pport; 1317 struct lpfc_sli *psli = &phba->sli; 1318 struct lpfc_sli_ring *pring; 1319 uint32_t event_data; 1320 unsigned long temperature; 1321 struct temp_event temp_event_data; 1322 struct Scsi_Host *shost; 1323 1324 /* If the pci channel is offline, ignore possible errors, 1325 * since we cannot communicate with the pci card anyway. 1326 */ 1327 if (pci_channel_offline(phba->pcidev)) { 1328 spin_lock_irq(&phba->hbalock); 1329 phba->hba_flag &= ~DEFER_ERATT; 1330 spin_unlock_irq(&phba->hbalock); 1331 return; 1332 } 1333 1334 /* If resets are disabled then leave the HBA alone and return */ 1335 if (!phba->cfg_enable_hba_reset) 1336 return; 1337 1338 /* Send an internal error event to mgmt application */ 1339 lpfc_board_errevt_to_mgmt(phba); 1340 1341 if (phba->hba_flag & DEFER_ERATT) 1342 lpfc_handle_deferred_eratt(phba); 1343 1344 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1345 if (phba->work_hs & HS_FFER6) 1346 /* Re-establishing Link */ 1347 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1348 "1301 Re-establishing Link " 1349 "Data: x%x x%x x%x\n", 1350 phba->work_hs, phba->work_status[0], 1351 phba->work_status[1]); 1352 if (phba->work_hs & HS_FFER8) 1353 /* Device Zeroization */ 1354 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1355 "2861 Host Authentication device " 1356 "zeroization Data:x%x x%x x%x\n", 1357 phba->work_hs, phba->work_status[0], 1358 phba->work_status[1]); 1359 1360 spin_lock_irq(&phba->hbalock); 1361 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1362 spin_unlock_irq(&phba->hbalock); 1363 1364 /* 1365 * Firmware stops when it triggled erratt with HS_FFER6. 1366 * That could cause the I/Os dropped by the firmware. 1367 * Error iocb (I/O) on txcmplq and let the SCSI layer 1368 * retry it after re-establishing link. 1369 */ 1370 pring = &psli->ring[psli->fcp_ring]; 1371 lpfc_sli_abort_iocb_ring(phba, pring); 1372 1373 /* 1374 * There was a firmware error. Take the hba offline and then 1375 * attempt to restart it. 1376 */ 1377 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1378 lpfc_offline(phba); 1379 lpfc_sli_brdrestart(phba); 1380 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1381 lpfc_unblock_mgmt_io(phba); 1382 return; 1383 } 1384 lpfc_unblock_mgmt_io(phba); 1385 } else if (phba->work_hs & HS_CRIT_TEMP) { 1386 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1387 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1388 temp_event_data.event_code = LPFC_CRIT_TEMP; 1389 temp_event_data.data = (uint32_t)temperature; 1390 1391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1392 "0406 Adapter maximum temperature exceeded " 1393 "(%ld), taking this port offline " 1394 "Data: x%x x%x x%x\n", 1395 temperature, phba->work_hs, 1396 phba->work_status[0], phba->work_status[1]); 1397 1398 shost = lpfc_shost_from_vport(phba->pport); 1399 fc_host_post_vendor_event(shost, fc_get_event_number(), 1400 sizeof(temp_event_data), 1401 (char *) &temp_event_data, 1402 SCSI_NL_VID_TYPE_PCI 1403 | PCI_VENDOR_ID_EMULEX); 1404 1405 spin_lock_irq(&phba->hbalock); 1406 phba->over_temp_state = HBA_OVER_TEMP; 1407 spin_unlock_irq(&phba->hbalock); 1408 lpfc_offline_eratt(phba); 1409 1410 } else { 1411 /* The if clause above forces this code path when the status 1412 * failure is a value other than FFER6. Do not call the offline 1413 * twice. This is the adapter hardware error path. 1414 */ 1415 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1416 "0457 Adapter Hardware Error " 1417 "Data: x%x x%x x%x\n", 1418 phba->work_hs, 1419 phba->work_status[0], phba->work_status[1]); 1420 1421 event_data = FC_REG_DUMP_EVENT; 1422 shost = lpfc_shost_from_vport(vport); 1423 fc_host_post_vendor_event(shost, fc_get_event_number(), 1424 sizeof(event_data), (char *) &event_data, 1425 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1426 1427 lpfc_offline_eratt(phba); 1428 } 1429 return; 1430 } 1431 1432 /** 1433 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg 1434 * @phba: pointer to lpfc hba data structure. 1435 * @mbx_action: flag for mailbox shutdown action. 1436 * 1437 * This routine is invoked to perform an SLI4 port PCI function reset in 1438 * response to port status register polling attention. It waits for port 1439 * status register (ERR, RDY, RN) bits before proceeding with function reset. 1440 * During this process, interrupt vectors are freed and later requested 1441 * for handling possible port resource change. 1442 **/ 1443 static int 1444 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action) 1445 { 1446 int rc; 1447 uint32_t intr_mode; 1448 1449 /* 1450 * On error status condition, driver need to wait for port 1451 * ready before performing reset. 1452 */ 1453 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1454 if (!rc) { 1455 /* need reset: attempt for port recovery */ 1456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1457 "2887 Reset Needed: Attempting Port " 1458 "Recovery...\n"); 1459 lpfc_offline_prep(phba, mbx_action); 1460 lpfc_offline(phba); 1461 /* release interrupt for possible resource change */ 1462 lpfc_sli4_disable_intr(phba); 1463 lpfc_sli_brdrestart(phba); 1464 /* request and enable interrupt */ 1465 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 1466 if (intr_mode == LPFC_INTR_ERROR) { 1467 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1468 "3175 Failed to enable interrupt\n"); 1469 return -EIO; 1470 } else { 1471 phba->intr_mode = intr_mode; 1472 } 1473 rc = lpfc_online(phba); 1474 if (rc == 0) 1475 lpfc_unblock_mgmt_io(phba); 1476 } 1477 return rc; 1478 } 1479 1480 /** 1481 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1482 * @phba: pointer to lpfc hba data structure. 1483 * 1484 * This routine is invoked to handle the SLI4 HBA hardware error attention 1485 * conditions. 1486 **/ 1487 static void 1488 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1489 { 1490 struct lpfc_vport *vport = phba->pport; 1491 uint32_t event_data; 1492 struct Scsi_Host *shost; 1493 uint32_t if_type; 1494 struct lpfc_register portstat_reg = {0}; 1495 uint32_t reg_err1, reg_err2; 1496 uint32_t uerrlo_reg, uemasklo_reg; 1497 uint32_t pci_rd_rc1, pci_rd_rc2; 1498 int rc; 1499 1500 /* If the pci channel is offline, ignore possible errors, since 1501 * we cannot communicate with the pci card anyway. 1502 */ 1503 if (pci_channel_offline(phba->pcidev)) 1504 return; 1505 /* If resets are disabled then leave the HBA alone and return */ 1506 if (!phba->cfg_enable_hba_reset) 1507 return; 1508 1509 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1510 switch (if_type) { 1511 case LPFC_SLI_INTF_IF_TYPE_0: 1512 pci_rd_rc1 = lpfc_readl( 1513 phba->sli4_hba.u.if_type0.UERRLOregaddr, 1514 &uerrlo_reg); 1515 pci_rd_rc2 = lpfc_readl( 1516 phba->sli4_hba.u.if_type0.UEMASKLOregaddr, 1517 &uemasklo_reg); 1518 /* consider PCI bus read error as pci_channel_offline */ 1519 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) 1520 return; 1521 lpfc_sli4_offline_eratt(phba); 1522 break; 1523 case LPFC_SLI_INTF_IF_TYPE_2: 1524 pci_rd_rc1 = lpfc_readl( 1525 phba->sli4_hba.u.if_type2.STATUSregaddr, 1526 &portstat_reg.word0); 1527 /* consider PCI bus read error as pci_channel_offline */ 1528 if (pci_rd_rc1 == -EIO) { 1529 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1530 "3151 PCI bus read access failure: x%x\n", 1531 readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); 1532 return; 1533 } 1534 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); 1535 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); 1536 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1537 /* TODO: Register for Overtemp async events. */ 1538 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1539 "2889 Port Overtemperature event, " 1540 "taking port offline\n"); 1541 spin_lock_irq(&phba->hbalock); 1542 phba->over_temp_state = HBA_OVER_TEMP; 1543 spin_unlock_irq(&phba->hbalock); 1544 lpfc_sli4_offline_eratt(phba); 1545 break; 1546 } 1547 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1548 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) 1549 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1550 "3143 Port Down: Firmware Restarted\n"); 1551 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1552 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1554 "3144 Port Down: Debug Dump\n"); 1555 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1556 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) 1557 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1558 "3145 Port Down: Provisioning\n"); 1559 1560 /* Check port status register for function reset */ 1561 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT); 1562 if (rc == 0) { 1563 /* don't report event on forced debug dump */ 1564 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1565 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1566 return; 1567 else 1568 break; 1569 } 1570 /* fall through for not able to recover */ 1571 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1572 "3152 Unrecoverable error, bring the port " 1573 "offline\n"); 1574 lpfc_sli4_offline_eratt(phba); 1575 break; 1576 case LPFC_SLI_INTF_IF_TYPE_1: 1577 default: 1578 break; 1579 } 1580 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1581 "3123 Report dump event to upper layer\n"); 1582 /* Send an internal error event to mgmt application */ 1583 lpfc_board_errevt_to_mgmt(phba); 1584 1585 event_data = FC_REG_DUMP_EVENT; 1586 shost = lpfc_shost_from_vport(vport); 1587 fc_host_post_vendor_event(shost, fc_get_event_number(), 1588 sizeof(event_data), (char *) &event_data, 1589 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1590 } 1591 1592 /** 1593 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1594 * @phba: pointer to lpfc HBA data structure. 1595 * 1596 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1597 * routine from the API jump table function pointer from the lpfc_hba struct. 1598 * 1599 * Return codes 1600 * 0 - success. 1601 * Any other value - error. 1602 **/ 1603 void 1604 lpfc_handle_eratt(struct lpfc_hba *phba) 1605 { 1606 (*phba->lpfc_handle_eratt)(phba); 1607 } 1608 1609 /** 1610 * lpfc_handle_latt - The HBA link event handler 1611 * @phba: pointer to lpfc hba data structure. 1612 * 1613 * This routine is invoked from the worker thread to handle a HBA host 1614 * attention link event. 1615 **/ 1616 void 1617 lpfc_handle_latt(struct lpfc_hba *phba) 1618 { 1619 struct lpfc_vport *vport = phba->pport; 1620 struct lpfc_sli *psli = &phba->sli; 1621 LPFC_MBOXQ_t *pmb; 1622 volatile uint32_t control; 1623 struct lpfc_dmabuf *mp; 1624 int rc = 0; 1625 1626 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1627 if (!pmb) { 1628 rc = 1; 1629 goto lpfc_handle_latt_err_exit; 1630 } 1631 1632 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1633 if (!mp) { 1634 rc = 2; 1635 goto lpfc_handle_latt_free_pmb; 1636 } 1637 1638 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1639 if (!mp->virt) { 1640 rc = 3; 1641 goto lpfc_handle_latt_free_mp; 1642 } 1643 1644 /* Cleanup any outstanding ELS commands */ 1645 lpfc_els_flush_all_cmd(phba); 1646 1647 psli->slistat.link_event++; 1648 lpfc_read_topology(phba, pmb, mp); 1649 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1650 pmb->vport = vport; 1651 /* Block ELS IOCBs until we have processed this mbox command */ 1652 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1653 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1654 if (rc == MBX_NOT_FINISHED) { 1655 rc = 4; 1656 goto lpfc_handle_latt_free_mbuf; 1657 } 1658 1659 /* Clear Link Attention in HA REG */ 1660 spin_lock_irq(&phba->hbalock); 1661 writel(HA_LATT, phba->HAregaddr); 1662 readl(phba->HAregaddr); /* flush */ 1663 spin_unlock_irq(&phba->hbalock); 1664 1665 return; 1666 1667 lpfc_handle_latt_free_mbuf: 1668 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1669 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1670 lpfc_handle_latt_free_mp: 1671 kfree(mp); 1672 lpfc_handle_latt_free_pmb: 1673 mempool_free(pmb, phba->mbox_mem_pool); 1674 lpfc_handle_latt_err_exit: 1675 /* Enable Link attention interrupts */ 1676 spin_lock_irq(&phba->hbalock); 1677 psli->sli_flag |= LPFC_PROCESS_LA; 1678 control = readl(phba->HCregaddr); 1679 control |= HC_LAINT_ENA; 1680 writel(control, phba->HCregaddr); 1681 readl(phba->HCregaddr); /* flush */ 1682 1683 /* Clear Link Attention in HA REG */ 1684 writel(HA_LATT, phba->HAregaddr); 1685 readl(phba->HAregaddr); /* flush */ 1686 spin_unlock_irq(&phba->hbalock); 1687 lpfc_linkdown(phba); 1688 phba->link_state = LPFC_HBA_ERROR; 1689 1690 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1691 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1692 1693 return; 1694 } 1695 1696 /** 1697 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1698 * @phba: pointer to lpfc hba data structure. 1699 * @vpd: pointer to the vital product data. 1700 * @len: length of the vital product data in bytes. 1701 * 1702 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1703 * an array of characters. In this routine, the ModelName, ProgramType, and 1704 * ModelDesc, etc. fields of the phba data structure will be populated. 1705 * 1706 * Return codes 1707 * 0 - pointer to the VPD passed in is NULL 1708 * 1 - success 1709 **/ 1710 int 1711 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1712 { 1713 uint8_t lenlo, lenhi; 1714 int Length; 1715 int i, j; 1716 int finished = 0; 1717 int index = 0; 1718 1719 if (!vpd) 1720 return 0; 1721 1722 /* Vital Product */ 1723 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1724 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1725 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1726 (uint32_t) vpd[3]); 1727 while (!finished && (index < (len - 4))) { 1728 switch (vpd[index]) { 1729 case 0x82: 1730 case 0x91: 1731 index += 1; 1732 lenlo = vpd[index]; 1733 index += 1; 1734 lenhi = vpd[index]; 1735 index += 1; 1736 i = ((((unsigned short)lenhi) << 8) + lenlo); 1737 index += i; 1738 break; 1739 case 0x90: 1740 index += 1; 1741 lenlo = vpd[index]; 1742 index += 1; 1743 lenhi = vpd[index]; 1744 index += 1; 1745 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1746 if (Length > len - index) 1747 Length = len - index; 1748 while (Length > 0) { 1749 /* Look for Serial Number */ 1750 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1751 index += 2; 1752 i = vpd[index]; 1753 index += 1; 1754 j = 0; 1755 Length -= (3+i); 1756 while(i--) { 1757 phba->SerialNumber[j++] = vpd[index++]; 1758 if (j == 31) 1759 break; 1760 } 1761 phba->SerialNumber[j] = 0; 1762 continue; 1763 } 1764 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1765 phba->vpd_flag |= VPD_MODEL_DESC; 1766 index += 2; 1767 i = vpd[index]; 1768 index += 1; 1769 j = 0; 1770 Length -= (3+i); 1771 while(i--) { 1772 phba->ModelDesc[j++] = vpd[index++]; 1773 if (j == 255) 1774 break; 1775 } 1776 phba->ModelDesc[j] = 0; 1777 continue; 1778 } 1779 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1780 phba->vpd_flag |= VPD_MODEL_NAME; 1781 index += 2; 1782 i = vpd[index]; 1783 index += 1; 1784 j = 0; 1785 Length -= (3+i); 1786 while(i--) { 1787 phba->ModelName[j++] = vpd[index++]; 1788 if (j == 79) 1789 break; 1790 } 1791 phba->ModelName[j] = 0; 1792 continue; 1793 } 1794 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1795 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1796 index += 2; 1797 i = vpd[index]; 1798 index += 1; 1799 j = 0; 1800 Length -= (3+i); 1801 while(i--) { 1802 phba->ProgramType[j++] = vpd[index++]; 1803 if (j == 255) 1804 break; 1805 } 1806 phba->ProgramType[j] = 0; 1807 continue; 1808 } 1809 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1810 phba->vpd_flag |= VPD_PORT; 1811 index += 2; 1812 i = vpd[index]; 1813 index += 1; 1814 j = 0; 1815 Length -= (3+i); 1816 while(i--) { 1817 if ((phba->sli_rev == LPFC_SLI_REV4) && 1818 (phba->sli4_hba.pport_name_sta == 1819 LPFC_SLI4_PPNAME_GET)) { 1820 j++; 1821 index++; 1822 } else 1823 phba->Port[j++] = vpd[index++]; 1824 if (j == 19) 1825 break; 1826 } 1827 if ((phba->sli_rev != LPFC_SLI_REV4) || 1828 (phba->sli4_hba.pport_name_sta == 1829 LPFC_SLI4_PPNAME_NON)) 1830 phba->Port[j] = 0; 1831 continue; 1832 } 1833 else { 1834 index += 2; 1835 i = vpd[index]; 1836 index += 1; 1837 index += i; 1838 Length -= (3 + i); 1839 } 1840 } 1841 finished = 0; 1842 break; 1843 case 0x78: 1844 finished = 1; 1845 break; 1846 default: 1847 index ++; 1848 break; 1849 } 1850 } 1851 1852 return(1); 1853 } 1854 1855 /** 1856 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1857 * @phba: pointer to lpfc hba data structure. 1858 * @mdp: pointer to the data structure to hold the derived model name. 1859 * @descp: pointer to the data structure to hold the derived description. 1860 * 1861 * This routine retrieves HBA's description based on its registered PCI device 1862 * ID. The @descp passed into this function points to an array of 256 chars. It 1863 * shall be returned with the model name, maximum speed, and the host bus type. 1864 * The @mdp passed into this function points to an array of 80 chars. When the 1865 * function returns, the @mdp will be filled with the model name. 1866 **/ 1867 static void 1868 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1869 { 1870 lpfc_vpd_t *vp; 1871 uint16_t dev_id = phba->pcidev->device; 1872 int max_speed; 1873 int GE = 0; 1874 int oneConnect = 0; /* default is not a oneConnect */ 1875 struct { 1876 char *name; 1877 char *bus; 1878 char *function; 1879 } m = {"<Unknown>", "", ""}; 1880 1881 if (mdp && mdp[0] != '\0' 1882 && descp && descp[0] != '\0') 1883 return; 1884 1885 if (phba->lmt & LMT_16Gb) 1886 max_speed = 16; 1887 else if (phba->lmt & LMT_10Gb) 1888 max_speed = 10; 1889 else if (phba->lmt & LMT_8Gb) 1890 max_speed = 8; 1891 else if (phba->lmt & LMT_4Gb) 1892 max_speed = 4; 1893 else if (phba->lmt & LMT_2Gb) 1894 max_speed = 2; 1895 else if (phba->lmt & LMT_1Gb) 1896 max_speed = 1; 1897 else 1898 max_speed = 0; 1899 1900 vp = &phba->vpd; 1901 1902 switch (dev_id) { 1903 case PCI_DEVICE_ID_FIREFLY: 1904 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1905 break; 1906 case PCI_DEVICE_ID_SUPERFLY: 1907 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1908 m = (typeof(m)){"LP7000", "PCI", 1909 "Fibre Channel Adapter"}; 1910 else 1911 m = (typeof(m)){"LP7000E", "PCI", 1912 "Fibre Channel Adapter"}; 1913 break; 1914 case PCI_DEVICE_ID_DRAGONFLY: 1915 m = (typeof(m)){"LP8000", "PCI", 1916 "Fibre Channel Adapter"}; 1917 break; 1918 case PCI_DEVICE_ID_CENTAUR: 1919 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1920 m = (typeof(m)){"LP9002", "PCI", 1921 "Fibre Channel Adapter"}; 1922 else 1923 m = (typeof(m)){"LP9000", "PCI", 1924 "Fibre Channel Adapter"}; 1925 break; 1926 case PCI_DEVICE_ID_RFLY: 1927 m = (typeof(m)){"LP952", "PCI", 1928 "Fibre Channel Adapter"}; 1929 break; 1930 case PCI_DEVICE_ID_PEGASUS: 1931 m = (typeof(m)){"LP9802", "PCI-X", 1932 "Fibre Channel Adapter"}; 1933 break; 1934 case PCI_DEVICE_ID_THOR: 1935 m = (typeof(m)){"LP10000", "PCI-X", 1936 "Fibre Channel Adapter"}; 1937 break; 1938 case PCI_DEVICE_ID_VIPER: 1939 m = (typeof(m)){"LPX1000", "PCI-X", 1940 "Fibre Channel Adapter"}; 1941 break; 1942 case PCI_DEVICE_ID_PFLY: 1943 m = (typeof(m)){"LP982", "PCI-X", 1944 "Fibre Channel Adapter"}; 1945 break; 1946 case PCI_DEVICE_ID_TFLY: 1947 m = (typeof(m)){"LP1050", "PCI-X", 1948 "Fibre Channel Adapter"}; 1949 break; 1950 case PCI_DEVICE_ID_HELIOS: 1951 m = (typeof(m)){"LP11000", "PCI-X2", 1952 "Fibre Channel Adapter"}; 1953 break; 1954 case PCI_DEVICE_ID_HELIOS_SCSP: 1955 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1956 "Fibre Channel Adapter"}; 1957 break; 1958 case PCI_DEVICE_ID_HELIOS_DCSP: 1959 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1960 "Fibre Channel Adapter"}; 1961 break; 1962 case PCI_DEVICE_ID_NEPTUNE: 1963 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1964 break; 1965 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1966 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1967 break; 1968 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1969 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1970 break; 1971 case PCI_DEVICE_ID_BMID: 1972 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1973 break; 1974 case PCI_DEVICE_ID_BSMB: 1975 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1976 break; 1977 case PCI_DEVICE_ID_ZEPHYR: 1978 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1979 break; 1980 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1981 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1982 break; 1983 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1984 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1985 GE = 1; 1986 break; 1987 case PCI_DEVICE_ID_ZMID: 1988 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1989 break; 1990 case PCI_DEVICE_ID_ZSMB: 1991 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1992 break; 1993 case PCI_DEVICE_ID_LP101: 1994 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1995 break; 1996 case PCI_DEVICE_ID_LP10000S: 1997 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1998 break; 1999 case PCI_DEVICE_ID_LP11000S: 2000 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 2001 break; 2002 case PCI_DEVICE_ID_LPE11000S: 2003 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 2004 break; 2005 case PCI_DEVICE_ID_SAT: 2006 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 2007 break; 2008 case PCI_DEVICE_ID_SAT_MID: 2009 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 2010 break; 2011 case PCI_DEVICE_ID_SAT_SMB: 2012 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 2013 break; 2014 case PCI_DEVICE_ID_SAT_DCSP: 2015 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 2016 break; 2017 case PCI_DEVICE_ID_SAT_SCSP: 2018 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 2019 break; 2020 case PCI_DEVICE_ID_SAT_S: 2021 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 2022 break; 2023 case PCI_DEVICE_ID_HORNET: 2024 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 2025 GE = 1; 2026 break; 2027 case PCI_DEVICE_ID_PROTEUS_VF: 2028 m = (typeof(m)){"LPev12000", "PCIe IOV", 2029 "Fibre Channel Adapter"}; 2030 break; 2031 case PCI_DEVICE_ID_PROTEUS_PF: 2032 m = (typeof(m)){"LPev12000", "PCIe IOV", 2033 "Fibre Channel Adapter"}; 2034 break; 2035 case PCI_DEVICE_ID_PROTEUS_S: 2036 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 2037 "Fibre Channel Adapter"}; 2038 break; 2039 case PCI_DEVICE_ID_TIGERSHARK: 2040 oneConnect = 1; 2041 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2042 break; 2043 case PCI_DEVICE_ID_TOMCAT: 2044 oneConnect = 1; 2045 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2046 break; 2047 case PCI_DEVICE_ID_FALCON: 2048 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2049 "EmulexSecure Fibre"}; 2050 break; 2051 case PCI_DEVICE_ID_BALIUS: 2052 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2053 "Fibre Channel Adapter"}; 2054 break; 2055 case PCI_DEVICE_ID_LANCER_FC: 2056 case PCI_DEVICE_ID_LANCER_FC_VF: 2057 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2058 break; 2059 case PCI_DEVICE_ID_LANCER_FCOE: 2060 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2061 oneConnect = 1; 2062 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2063 break; 2064 case PCI_DEVICE_ID_SKYHAWK: 2065 case PCI_DEVICE_ID_SKYHAWK_VF: 2066 oneConnect = 1; 2067 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"}; 2068 break; 2069 default: 2070 m = (typeof(m)){"Unknown", "", ""}; 2071 break; 2072 } 2073 2074 if (mdp && mdp[0] == '\0') 2075 snprintf(mdp, 79,"%s", m.name); 2076 /* 2077 * oneConnect hba requires special processing, they are all initiators 2078 * and we put the port number on the end 2079 */ 2080 if (descp && descp[0] == '\0') { 2081 if (oneConnect) 2082 snprintf(descp, 255, 2083 "Emulex OneConnect %s, %s Initiator %s", 2084 m.name, m.function, 2085 phba->Port); 2086 else if (max_speed == 0) 2087 snprintf(descp, 255, 2088 "Emulex %s %s %s ", 2089 m.name, m.bus, m.function); 2090 else 2091 snprintf(descp, 255, 2092 "Emulex %s %d%s %s %s", 2093 m.name, max_speed, (GE) ? "GE" : "Gb", 2094 m.bus, m.function); 2095 } 2096 } 2097 2098 /** 2099 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2100 * @phba: pointer to lpfc hba data structure. 2101 * @pring: pointer to a IOCB ring. 2102 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2103 * 2104 * This routine posts a given number of IOCBs with the associated DMA buffer 2105 * descriptors specified by the cnt argument to the given IOCB ring. 2106 * 2107 * Return codes 2108 * The number of IOCBs NOT able to be posted to the IOCB ring. 2109 **/ 2110 int 2111 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2112 { 2113 IOCB_t *icmd; 2114 struct lpfc_iocbq *iocb; 2115 struct lpfc_dmabuf *mp1, *mp2; 2116 2117 cnt += pring->missbufcnt; 2118 2119 /* While there are buffers to post */ 2120 while (cnt > 0) { 2121 /* Allocate buffer for command iocb */ 2122 iocb = lpfc_sli_get_iocbq(phba); 2123 if (iocb == NULL) { 2124 pring->missbufcnt = cnt; 2125 return cnt; 2126 } 2127 icmd = &iocb->iocb; 2128 2129 /* 2 buffers can be posted per command */ 2130 /* Allocate buffer to post */ 2131 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2132 if (mp1) 2133 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2134 if (!mp1 || !mp1->virt) { 2135 kfree(mp1); 2136 lpfc_sli_release_iocbq(phba, iocb); 2137 pring->missbufcnt = cnt; 2138 return cnt; 2139 } 2140 2141 INIT_LIST_HEAD(&mp1->list); 2142 /* Allocate buffer to post */ 2143 if (cnt > 1) { 2144 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2145 if (mp2) 2146 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2147 &mp2->phys); 2148 if (!mp2 || !mp2->virt) { 2149 kfree(mp2); 2150 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2151 kfree(mp1); 2152 lpfc_sli_release_iocbq(phba, iocb); 2153 pring->missbufcnt = cnt; 2154 return cnt; 2155 } 2156 2157 INIT_LIST_HEAD(&mp2->list); 2158 } else { 2159 mp2 = NULL; 2160 } 2161 2162 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2163 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2164 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2165 icmd->ulpBdeCount = 1; 2166 cnt--; 2167 if (mp2) { 2168 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2169 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2170 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2171 cnt--; 2172 icmd->ulpBdeCount = 2; 2173 } 2174 2175 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2176 icmd->ulpLe = 1; 2177 2178 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2179 IOCB_ERROR) { 2180 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2181 kfree(mp1); 2182 cnt++; 2183 if (mp2) { 2184 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2185 kfree(mp2); 2186 cnt++; 2187 } 2188 lpfc_sli_release_iocbq(phba, iocb); 2189 pring->missbufcnt = cnt; 2190 return cnt; 2191 } 2192 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2193 if (mp2) 2194 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2195 } 2196 pring->missbufcnt = 0; 2197 return 0; 2198 } 2199 2200 /** 2201 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2202 * @phba: pointer to lpfc hba data structure. 2203 * 2204 * This routine posts initial receive IOCB buffers to the ELS ring. The 2205 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2206 * set to 64 IOCBs. 2207 * 2208 * Return codes 2209 * 0 - success (currently always success) 2210 **/ 2211 static int 2212 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2213 { 2214 struct lpfc_sli *psli = &phba->sli; 2215 2216 /* Ring 0, ELS / CT buffers */ 2217 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2218 /* Ring 2 - FCP no buffers needed */ 2219 2220 return 0; 2221 } 2222 2223 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2224 2225 /** 2226 * lpfc_sha_init - Set up initial array of hash table entries 2227 * @HashResultPointer: pointer to an array as hash table. 2228 * 2229 * This routine sets up the initial values to the array of hash table entries 2230 * for the LC HBAs. 2231 **/ 2232 static void 2233 lpfc_sha_init(uint32_t * HashResultPointer) 2234 { 2235 HashResultPointer[0] = 0x67452301; 2236 HashResultPointer[1] = 0xEFCDAB89; 2237 HashResultPointer[2] = 0x98BADCFE; 2238 HashResultPointer[3] = 0x10325476; 2239 HashResultPointer[4] = 0xC3D2E1F0; 2240 } 2241 2242 /** 2243 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2244 * @HashResultPointer: pointer to an initial/result hash table. 2245 * @HashWorkingPointer: pointer to an working hash table. 2246 * 2247 * This routine iterates an initial hash table pointed by @HashResultPointer 2248 * with the values from the working hash table pointeed by @HashWorkingPointer. 2249 * The results are putting back to the initial hash table, returned through 2250 * the @HashResultPointer as the result hash table. 2251 **/ 2252 static void 2253 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2254 { 2255 int t; 2256 uint32_t TEMP; 2257 uint32_t A, B, C, D, E; 2258 t = 16; 2259 do { 2260 HashWorkingPointer[t] = 2261 S(1, 2262 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2263 8] ^ 2264 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2265 } while (++t <= 79); 2266 t = 0; 2267 A = HashResultPointer[0]; 2268 B = HashResultPointer[1]; 2269 C = HashResultPointer[2]; 2270 D = HashResultPointer[3]; 2271 E = HashResultPointer[4]; 2272 2273 do { 2274 if (t < 20) { 2275 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2276 } else if (t < 40) { 2277 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2278 } else if (t < 60) { 2279 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2280 } else { 2281 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2282 } 2283 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2284 E = D; 2285 D = C; 2286 C = S(30, B); 2287 B = A; 2288 A = TEMP; 2289 } while (++t <= 79); 2290 2291 HashResultPointer[0] += A; 2292 HashResultPointer[1] += B; 2293 HashResultPointer[2] += C; 2294 HashResultPointer[3] += D; 2295 HashResultPointer[4] += E; 2296 2297 } 2298 2299 /** 2300 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2301 * @RandomChallenge: pointer to the entry of host challenge random number array. 2302 * @HashWorking: pointer to the entry of the working hash array. 2303 * 2304 * This routine calculates the working hash array referred by @HashWorking 2305 * from the challenge random numbers associated with the host, referred by 2306 * @RandomChallenge. The result is put into the entry of the working hash 2307 * array and returned by reference through @HashWorking. 2308 **/ 2309 static void 2310 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2311 { 2312 *HashWorking = (*RandomChallenge ^ *HashWorking); 2313 } 2314 2315 /** 2316 * lpfc_hba_init - Perform special handling for LC HBA initialization 2317 * @phba: pointer to lpfc hba data structure. 2318 * @hbainit: pointer to an array of unsigned 32-bit integers. 2319 * 2320 * This routine performs the special handling for LC HBA initialization. 2321 **/ 2322 void 2323 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2324 { 2325 int t; 2326 uint32_t *HashWorking; 2327 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2328 2329 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2330 if (!HashWorking) 2331 return; 2332 2333 HashWorking[0] = HashWorking[78] = *pwwnn++; 2334 HashWorking[1] = HashWorking[79] = *pwwnn; 2335 2336 for (t = 0; t < 7; t++) 2337 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2338 2339 lpfc_sha_init(hbainit); 2340 lpfc_sha_iterate(hbainit, HashWorking); 2341 kfree(HashWorking); 2342 } 2343 2344 /** 2345 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2346 * @vport: pointer to a virtual N_Port data structure. 2347 * 2348 * This routine performs the necessary cleanups before deleting the @vport. 2349 * It invokes the discovery state machine to perform necessary state 2350 * transitions and to release the ndlps associated with the @vport. Note, 2351 * the physical port is treated as @vport 0. 2352 **/ 2353 void 2354 lpfc_cleanup(struct lpfc_vport *vport) 2355 { 2356 struct lpfc_hba *phba = vport->phba; 2357 struct lpfc_nodelist *ndlp, *next_ndlp; 2358 int i = 0; 2359 2360 if (phba->link_state > LPFC_LINK_DOWN) 2361 lpfc_port_link_failure(vport); 2362 2363 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2364 if (!NLP_CHK_NODE_ACT(ndlp)) { 2365 ndlp = lpfc_enable_node(vport, ndlp, 2366 NLP_STE_UNUSED_NODE); 2367 if (!ndlp) 2368 continue; 2369 spin_lock_irq(&phba->ndlp_lock); 2370 NLP_SET_FREE_REQ(ndlp); 2371 spin_unlock_irq(&phba->ndlp_lock); 2372 /* Trigger the release of the ndlp memory */ 2373 lpfc_nlp_put(ndlp); 2374 continue; 2375 } 2376 spin_lock_irq(&phba->ndlp_lock); 2377 if (NLP_CHK_FREE_REQ(ndlp)) { 2378 /* The ndlp should not be in memory free mode already */ 2379 spin_unlock_irq(&phba->ndlp_lock); 2380 continue; 2381 } else 2382 /* Indicate request for freeing ndlp memory */ 2383 NLP_SET_FREE_REQ(ndlp); 2384 spin_unlock_irq(&phba->ndlp_lock); 2385 2386 if (vport->port_type != LPFC_PHYSICAL_PORT && 2387 ndlp->nlp_DID == Fabric_DID) { 2388 /* Just free up ndlp with Fabric_DID for vports */ 2389 lpfc_nlp_put(ndlp); 2390 continue; 2391 } 2392 2393 /* take care of nodes in unused state before the state 2394 * machine taking action. 2395 */ 2396 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 2397 lpfc_nlp_put(ndlp); 2398 continue; 2399 } 2400 2401 if (ndlp->nlp_type & NLP_FABRIC) 2402 lpfc_disc_state_machine(vport, ndlp, NULL, 2403 NLP_EVT_DEVICE_RECOVERY); 2404 2405 lpfc_disc_state_machine(vport, ndlp, NULL, 2406 NLP_EVT_DEVICE_RM); 2407 } 2408 2409 /* At this point, ALL ndlp's should be gone 2410 * because of the previous NLP_EVT_DEVICE_RM. 2411 * Lets wait for this to happen, if needed. 2412 */ 2413 while (!list_empty(&vport->fc_nodes)) { 2414 if (i++ > 3000) { 2415 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2416 "0233 Nodelist not empty\n"); 2417 list_for_each_entry_safe(ndlp, next_ndlp, 2418 &vport->fc_nodes, nlp_listp) { 2419 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2420 LOG_NODE, 2421 "0282 did:x%x ndlp:x%p " 2422 "usgmap:x%x refcnt:%d\n", 2423 ndlp->nlp_DID, (void *)ndlp, 2424 ndlp->nlp_usg_map, 2425 atomic_read( 2426 &ndlp->kref.refcount)); 2427 } 2428 break; 2429 } 2430 2431 /* Wait for any activity on ndlps to settle */ 2432 msleep(10); 2433 } 2434 lpfc_cleanup_vports_rrqs(vport, NULL); 2435 } 2436 2437 /** 2438 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2439 * @vport: pointer to a virtual N_Port data structure. 2440 * 2441 * This routine stops all the timers associated with a @vport. This function 2442 * is invoked before disabling or deleting a @vport. Note that the physical 2443 * port is treated as @vport 0. 2444 **/ 2445 void 2446 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2447 { 2448 del_timer_sync(&vport->els_tmofunc); 2449 del_timer_sync(&vport->fc_fdmitmo); 2450 del_timer_sync(&vport->delayed_disc_tmo); 2451 lpfc_can_disctmo(vport); 2452 return; 2453 } 2454 2455 /** 2456 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2457 * @phba: pointer to lpfc hba data structure. 2458 * 2459 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2460 * caller of this routine should already hold the host lock. 2461 **/ 2462 void 2463 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2464 { 2465 /* Clear pending FCF rediscovery wait flag */ 2466 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2467 2468 /* Now, try to stop the timer */ 2469 del_timer(&phba->fcf.redisc_wait); 2470 } 2471 2472 /** 2473 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2474 * @phba: pointer to lpfc hba data structure. 2475 * 2476 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2477 * checks whether the FCF rediscovery wait timer is pending with the host 2478 * lock held before proceeding with disabling the timer and clearing the 2479 * wait timer pendig flag. 2480 **/ 2481 void 2482 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2483 { 2484 spin_lock_irq(&phba->hbalock); 2485 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2486 /* FCF rediscovery timer already fired or stopped */ 2487 spin_unlock_irq(&phba->hbalock); 2488 return; 2489 } 2490 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2491 /* Clear failover in progress flags */ 2492 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2493 spin_unlock_irq(&phba->hbalock); 2494 } 2495 2496 /** 2497 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2498 * @phba: pointer to lpfc hba data structure. 2499 * 2500 * This routine stops all the timers associated with a HBA. This function is 2501 * invoked before either putting a HBA offline or unloading the driver. 2502 **/ 2503 void 2504 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2505 { 2506 lpfc_stop_vport_timers(phba->pport); 2507 del_timer_sync(&phba->sli.mbox_tmo); 2508 del_timer_sync(&phba->fabric_block_timer); 2509 del_timer_sync(&phba->eratt_poll); 2510 del_timer_sync(&phba->hb_tmofunc); 2511 if (phba->sli_rev == LPFC_SLI_REV4) { 2512 del_timer_sync(&phba->rrq_tmr); 2513 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2514 } 2515 phba->hb_outstanding = 0; 2516 2517 switch (phba->pci_dev_grp) { 2518 case LPFC_PCI_DEV_LP: 2519 /* Stop any LightPulse device specific driver timers */ 2520 del_timer_sync(&phba->fcp_poll_timer); 2521 break; 2522 case LPFC_PCI_DEV_OC: 2523 /* Stop any OneConnect device sepcific driver timers */ 2524 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2525 break; 2526 default: 2527 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2528 "0297 Invalid device group (x%x)\n", 2529 phba->pci_dev_grp); 2530 break; 2531 } 2532 return; 2533 } 2534 2535 /** 2536 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2537 * @phba: pointer to lpfc hba data structure. 2538 * 2539 * This routine marks a HBA's management interface as blocked. Once the HBA's 2540 * management interface is marked as blocked, all the user space access to 2541 * the HBA, whether they are from sysfs interface or libdfc interface will 2542 * all be blocked. The HBA is set to block the management interface when the 2543 * driver prepares the HBA interface for online or offline. 2544 **/ 2545 static void 2546 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action) 2547 { 2548 unsigned long iflag; 2549 uint8_t actcmd = MBX_HEARTBEAT; 2550 unsigned long timeout; 2551 2552 spin_lock_irqsave(&phba->hbalock, iflag); 2553 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2554 spin_unlock_irqrestore(&phba->hbalock, iflag); 2555 if (mbx_action == LPFC_MBX_NO_WAIT) 2556 return; 2557 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2558 spin_lock_irqsave(&phba->hbalock, iflag); 2559 if (phba->sli.mbox_active) { 2560 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2561 /* Determine how long we might wait for the active mailbox 2562 * command to be gracefully completed by firmware. 2563 */ 2564 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2565 phba->sli.mbox_active) * 1000) + jiffies; 2566 } 2567 spin_unlock_irqrestore(&phba->hbalock, iflag); 2568 2569 /* Wait for the outstnading mailbox command to complete */ 2570 while (phba->sli.mbox_active) { 2571 /* Check active mailbox complete status every 2ms */ 2572 msleep(2); 2573 if (time_after(jiffies, timeout)) { 2574 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2575 "2813 Mgmt IO is Blocked %x " 2576 "- mbox cmd %x still active\n", 2577 phba->sli.sli_flag, actcmd); 2578 break; 2579 } 2580 } 2581 } 2582 2583 /** 2584 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 2585 * @phba: pointer to lpfc hba data structure. 2586 * 2587 * Allocate RPIs for all active remote nodes. This is needed whenever 2588 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 2589 * is to fixup the temporary rpi assignments. 2590 **/ 2591 void 2592 lpfc_sli4_node_prep(struct lpfc_hba *phba) 2593 { 2594 struct lpfc_nodelist *ndlp, *next_ndlp; 2595 struct lpfc_vport **vports; 2596 int i; 2597 2598 if (phba->sli_rev != LPFC_SLI_REV4) 2599 return; 2600 2601 vports = lpfc_create_vport_work_array(phba); 2602 if (vports != NULL) { 2603 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2604 if (vports[i]->load_flag & FC_UNLOADING) 2605 continue; 2606 2607 list_for_each_entry_safe(ndlp, next_ndlp, 2608 &vports[i]->fc_nodes, 2609 nlp_listp) { 2610 if (NLP_CHK_NODE_ACT(ndlp)) 2611 ndlp->nlp_rpi = 2612 lpfc_sli4_alloc_rpi(phba); 2613 } 2614 } 2615 } 2616 lpfc_destroy_vport_work_array(phba, vports); 2617 } 2618 2619 /** 2620 * lpfc_online - Initialize and bring a HBA online 2621 * @phba: pointer to lpfc hba data structure. 2622 * 2623 * This routine initializes the HBA and brings a HBA online. During this 2624 * process, the management interface is blocked to prevent user space access 2625 * to the HBA interfering with the driver initialization. 2626 * 2627 * Return codes 2628 * 0 - successful 2629 * 1 - failed 2630 **/ 2631 int 2632 lpfc_online(struct lpfc_hba *phba) 2633 { 2634 struct lpfc_vport *vport; 2635 struct lpfc_vport **vports; 2636 int i; 2637 2638 if (!phba) 2639 return 0; 2640 vport = phba->pport; 2641 2642 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2643 return 0; 2644 2645 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2646 "0458 Bring Adapter online\n"); 2647 2648 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 2649 2650 if (!lpfc_sli_queue_setup(phba)) { 2651 lpfc_unblock_mgmt_io(phba); 2652 return 1; 2653 } 2654 2655 if (phba->sli_rev == LPFC_SLI_REV4) { 2656 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2657 lpfc_unblock_mgmt_io(phba); 2658 return 1; 2659 } 2660 } else { 2661 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2662 lpfc_unblock_mgmt_io(phba); 2663 return 1; 2664 } 2665 } 2666 2667 vports = lpfc_create_vport_work_array(phba); 2668 if (vports != NULL) 2669 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2670 struct Scsi_Host *shost; 2671 shost = lpfc_shost_from_vport(vports[i]); 2672 spin_lock_irq(shost->host_lock); 2673 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2674 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2675 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2676 if (phba->sli_rev == LPFC_SLI_REV4) 2677 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2678 spin_unlock_irq(shost->host_lock); 2679 } 2680 lpfc_destroy_vport_work_array(phba, vports); 2681 2682 lpfc_unblock_mgmt_io(phba); 2683 return 0; 2684 } 2685 2686 /** 2687 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2688 * @phba: pointer to lpfc hba data structure. 2689 * 2690 * This routine marks a HBA's management interface as not blocked. Once the 2691 * HBA's management interface is marked as not blocked, all the user space 2692 * access to the HBA, whether they are from sysfs interface or libdfc 2693 * interface will be allowed. The HBA is set to block the management interface 2694 * when the driver prepares the HBA interface for online or offline and then 2695 * set to unblock the management interface afterwards. 2696 **/ 2697 void 2698 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2699 { 2700 unsigned long iflag; 2701 2702 spin_lock_irqsave(&phba->hbalock, iflag); 2703 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2704 spin_unlock_irqrestore(&phba->hbalock, iflag); 2705 } 2706 2707 /** 2708 * lpfc_offline_prep - Prepare a HBA to be brought offline 2709 * @phba: pointer to lpfc hba data structure. 2710 * 2711 * This routine is invoked to prepare a HBA to be brought offline. It performs 2712 * unregistration login to all the nodes on all vports and flushes the mailbox 2713 * queue to make it ready to be brought offline. 2714 **/ 2715 void 2716 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) 2717 { 2718 struct lpfc_vport *vport = phba->pport; 2719 struct lpfc_nodelist *ndlp, *next_ndlp; 2720 struct lpfc_vport **vports; 2721 struct Scsi_Host *shost; 2722 int i; 2723 2724 if (vport->fc_flag & FC_OFFLINE_MODE) 2725 return; 2726 2727 lpfc_block_mgmt_io(phba, mbx_action); 2728 2729 lpfc_linkdown(phba); 2730 2731 /* Issue an unreg_login to all nodes on all vports */ 2732 vports = lpfc_create_vport_work_array(phba); 2733 if (vports != NULL) { 2734 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2735 if (vports[i]->load_flag & FC_UNLOADING) 2736 continue; 2737 shost = lpfc_shost_from_vport(vports[i]); 2738 spin_lock_irq(shost->host_lock); 2739 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2740 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2741 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2742 spin_unlock_irq(shost->host_lock); 2743 2744 shost = lpfc_shost_from_vport(vports[i]); 2745 list_for_each_entry_safe(ndlp, next_ndlp, 2746 &vports[i]->fc_nodes, 2747 nlp_listp) { 2748 if (!NLP_CHK_NODE_ACT(ndlp)) 2749 continue; 2750 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2751 continue; 2752 if (ndlp->nlp_type & NLP_FABRIC) { 2753 lpfc_disc_state_machine(vports[i], ndlp, 2754 NULL, NLP_EVT_DEVICE_RECOVERY); 2755 lpfc_disc_state_machine(vports[i], ndlp, 2756 NULL, NLP_EVT_DEVICE_RM); 2757 } 2758 spin_lock_irq(shost->host_lock); 2759 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2760 spin_unlock_irq(shost->host_lock); 2761 /* 2762 * Whenever an SLI4 port goes offline, free the 2763 * RPI. Get a new RPI when the adapter port 2764 * comes back online. 2765 */ 2766 if (phba->sli_rev == LPFC_SLI_REV4) 2767 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 2768 lpfc_unreg_rpi(vports[i], ndlp); 2769 } 2770 } 2771 } 2772 lpfc_destroy_vport_work_array(phba, vports); 2773 2774 lpfc_sli_mbox_sys_shutdown(phba, mbx_action); 2775 } 2776 2777 /** 2778 * lpfc_offline - Bring a HBA offline 2779 * @phba: pointer to lpfc hba data structure. 2780 * 2781 * This routine actually brings a HBA offline. It stops all the timers 2782 * associated with the HBA, brings down the SLI layer, and eventually 2783 * marks the HBA as in offline state for the upper layer protocol. 2784 **/ 2785 void 2786 lpfc_offline(struct lpfc_hba *phba) 2787 { 2788 struct Scsi_Host *shost; 2789 struct lpfc_vport **vports; 2790 int i; 2791 2792 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2793 return; 2794 2795 /* stop port and all timers associated with this hba */ 2796 lpfc_stop_port(phba); 2797 vports = lpfc_create_vport_work_array(phba); 2798 if (vports != NULL) 2799 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2800 lpfc_stop_vport_timers(vports[i]); 2801 lpfc_destroy_vport_work_array(phba, vports); 2802 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2803 "0460 Bring Adapter offline\n"); 2804 /* Bring down the SLI Layer and cleanup. The HBA is offline 2805 now. */ 2806 lpfc_sli_hba_down(phba); 2807 spin_lock_irq(&phba->hbalock); 2808 phba->work_ha = 0; 2809 spin_unlock_irq(&phba->hbalock); 2810 vports = lpfc_create_vport_work_array(phba); 2811 if (vports != NULL) 2812 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2813 shost = lpfc_shost_from_vport(vports[i]); 2814 spin_lock_irq(shost->host_lock); 2815 vports[i]->work_port_events = 0; 2816 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2817 spin_unlock_irq(shost->host_lock); 2818 } 2819 lpfc_destroy_vport_work_array(phba, vports); 2820 } 2821 2822 /** 2823 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2824 * @phba: pointer to lpfc hba data structure. 2825 * 2826 * This routine is to free all the SCSI buffers and IOCBs from the driver 2827 * list back to kernel. It is called from lpfc_pci_remove_one to free 2828 * the internal resources before the device is removed from the system. 2829 **/ 2830 static void 2831 lpfc_scsi_free(struct lpfc_hba *phba) 2832 { 2833 struct lpfc_scsi_buf *sb, *sb_next; 2834 struct lpfc_iocbq *io, *io_next; 2835 2836 spin_lock_irq(&phba->hbalock); 2837 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2838 spin_lock(&phba->scsi_buf_list_lock); 2839 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2840 list_del(&sb->list); 2841 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2842 sb->dma_handle); 2843 kfree(sb); 2844 phba->total_scsi_bufs--; 2845 } 2846 spin_unlock(&phba->scsi_buf_list_lock); 2847 2848 /* Release all the lpfc_iocbq entries maintained by this host. */ 2849 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2850 list_del(&io->list); 2851 kfree(io); 2852 phba->total_iocbq_bufs--; 2853 } 2854 2855 spin_unlock_irq(&phba->hbalock); 2856 } 2857 2858 /** 2859 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping 2860 * @phba: pointer to lpfc hba data structure. 2861 * 2862 * This routine first calculates the sizes of the current els and allocated 2863 * scsi sgl lists, and then goes through all sgls to updates the physical 2864 * XRIs assigned due to port function reset. During port initialization, the 2865 * current els and allocated scsi sgl lists are 0s. 2866 * 2867 * Return codes 2868 * 0 - successful (for now, it always returns 0) 2869 **/ 2870 int 2871 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba) 2872 { 2873 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 2874 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL; 2875 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt; 2876 LIST_HEAD(els_sgl_list); 2877 LIST_HEAD(scsi_sgl_list); 2878 int rc; 2879 2880 /* 2881 * update on pci function's els xri-sgl list 2882 */ 2883 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 2884 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 2885 /* els xri-sgl expanded */ 2886 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 2887 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2888 "3157 ELS xri-sgl count increased from " 2889 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 2890 els_xri_cnt); 2891 /* allocate the additional els sgls */ 2892 for (i = 0; i < xri_cnt; i++) { 2893 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 2894 GFP_KERNEL); 2895 if (sglq_entry == NULL) { 2896 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2897 "2562 Failure to allocate an " 2898 "ELS sgl entry:%d\n", i); 2899 rc = -ENOMEM; 2900 goto out_free_mem; 2901 } 2902 sglq_entry->buff_type = GEN_BUFF_TYPE; 2903 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 2904 &sglq_entry->phys); 2905 if (sglq_entry->virt == NULL) { 2906 kfree(sglq_entry); 2907 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2908 "2563 Failure to allocate an " 2909 "ELS mbuf:%d\n", i); 2910 rc = -ENOMEM; 2911 goto out_free_mem; 2912 } 2913 sglq_entry->sgl = sglq_entry->virt; 2914 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 2915 sglq_entry->state = SGL_FREED; 2916 list_add_tail(&sglq_entry->list, &els_sgl_list); 2917 } 2918 spin_lock(&phba->hbalock); 2919 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 2920 spin_unlock(&phba->hbalock); 2921 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 2922 /* els xri-sgl shrinked */ 2923 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 2924 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2925 "3158 ELS xri-sgl count decreased from " 2926 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 2927 els_xri_cnt); 2928 spin_lock_irq(&phba->hbalock); 2929 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list); 2930 spin_unlock_irq(&phba->hbalock); 2931 /* release extra els sgls from list */ 2932 for (i = 0; i < xri_cnt; i++) { 2933 list_remove_head(&els_sgl_list, 2934 sglq_entry, struct lpfc_sglq, list); 2935 if (sglq_entry) { 2936 lpfc_mbuf_free(phba, sglq_entry->virt, 2937 sglq_entry->phys); 2938 kfree(sglq_entry); 2939 } 2940 } 2941 spin_lock_irq(&phba->hbalock); 2942 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 2943 spin_unlock_irq(&phba->hbalock); 2944 } else 2945 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2946 "3163 ELS xri-sgl count unchanged: %d\n", 2947 els_xri_cnt); 2948 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 2949 2950 /* update xris to els sgls on the list */ 2951 sglq_entry = NULL; 2952 sglq_entry_next = NULL; 2953 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 2954 &phba->sli4_hba.lpfc_sgl_list, list) { 2955 lxri = lpfc_sli4_next_xritag(phba); 2956 if (lxri == NO_XRI) { 2957 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2958 "2400 Failed to allocate xri for " 2959 "ELS sgl\n"); 2960 rc = -ENOMEM; 2961 goto out_free_mem; 2962 } 2963 sglq_entry->sli4_lxritag = lxri; 2964 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 2965 } 2966 2967 /* 2968 * update on pci function's allocated scsi xri-sgl list 2969 */ 2970 phba->total_scsi_bufs = 0; 2971 2972 /* maximum number of xris available for scsi buffers */ 2973 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - 2974 els_xri_cnt; 2975 2976 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2977 "2401 Current allocated SCSI xri-sgl count:%d, " 2978 "maximum SCSI xri count:%d\n", 2979 phba->sli4_hba.scsi_xri_cnt, 2980 phba->sli4_hba.scsi_xri_max); 2981 2982 spin_lock_irq(&phba->scsi_buf_list_lock); 2983 list_splice_init(&phba->lpfc_scsi_buf_list, &scsi_sgl_list); 2984 spin_unlock_irq(&phba->scsi_buf_list_lock); 2985 2986 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { 2987 /* max scsi xri shrinked below the allocated scsi buffers */ 2988 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - 2989 phba->sli4_hba.scsi_xri_max; 2990 /* release the extra allocated scsi buffers */ 2991 for (i = 0; i < scsi_xri_cnt; i++) { 2992 list_remove_head(&scsi_sgl_list, psb, 2993 struct lpfc_scsi_buf, list); 2994 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data, 2995 psb->dma_handle); 2996 kfree(psb); 2997 } 2998 spin_lock_irq(&phba->scsi_buf_list_lock); 2999 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; 3000 spin_unlock_irq(&phba->scsi_buf_list_lock); 3001 } 3002 3003 /* update xris associated to remaining allocated scsi buffers */ 3004 psb = NULL; 3005 psb_next = NULL; 3006 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { 3007 lxri = lpfc_sli4_next_xritag(phba); 3008 if (lxri == NO_XRI) { 3009 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3010 "2560 Failed to allocate xri for " 3011 "scsi buffer\n"); 3012 rc = -ENOMEM; 3013 goto out_free_mem; 3014 } 3015 psb->cur_iocbq.sli4_lxritag = lxri; 3016 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3017 } 3018 spin_lock(&phba->scsi_buf_list_lock); 3019 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list); 3020 spin_unlock(&phba->scsi_buf_list_lock); 3021 3022 return 0; 3023 3024 out_free_mem: 3025 lpfc_free_els_sgl_list(phba); 3026 lpfc_scsi_free(phba); 3027 return rc; 3028 } 3029 3030 /** 3031 * lpfc_create_port - Create an FC port 3032 * @phba: pointer to lpfc hba data structure. 3033 * @instance: a unique integer ID to this FC port. 3034 * @dev: pointer to the device data structure. 3035 * 3036 * This routine creates a FC port for the upper layer protocol. The FC port 3037 * can be created on top of either a physical port or a virtual port provided 3038 * by the HBA. This routine also allocates a SCSI host data structure (shost) 3039 * and associates the FC port created before adding the shost into the SCSI 3040 * layer. 3041 * 3042 * Return codes 3043 * @vport - pointer to the virtual N_Port data structure. 3044 * NULL - port create failed. 3045 **/ 3046 struct lpfc_vport * 3047 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 3048 { 3049 struct lpfc_vport *vport; 3050 struct Scsi_Host *shost; 3051 int error = 0; 3052 3053 if (dev != &phba->pcidev->dev) 3054 shost = scsi_host_alloc(&lpfc_vport_template, 3055 sizeof(struct lpfc_vport)); 3056 else 3057 shost = scsi_host_alloc(&lpfc_template, 3058 sizeof(struct lpfc_vport)); 3059 if (!shost) 3060 goto out; 3061 3062 vport = (struct lpfc_vport *) shost->hostdata; 3063 vport->phba = phba; 3064 vport->load_flag |= FC_LOADING; 3065 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3066 vport->fc_rscn_flush = 0; 3067 3068 lpfc_get_vport_cfgparam(vport); 3069 shost->unique_id = instance; 3070 shost->max_id = LPFC_MAX_TARGET; 3071 shost->max_lun = vport->cfg_max_luns; 3072 shost->this_id = -1; 3073 shost->max_cmd_len = 16; 3074 if (phba->sli_rev == LPFC_SLI_REV4) { 3075 shost->dma_boundary = 3076 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3077 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 3078 } 3079 3080 /* 3081 * Set initial can_queue value since 0 is no longer supported and 3082 * scsi_add_host will fail. This will be adjusted later based on the 3083 * max xri value determined in hba setup. 3084 */ 3085 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3086 if (dev != &phba->pcidev->dev) { 3087 shost->transportt = lpfc_vport_transport_template; 3088 vport->port_type = LPFC_NPIV_PORT; 3089 } else { 3090 shost->transportt = lpfc_transport_template; 3091 vport->port_type = LPFC_PHYSICAL_PORT; 3092 } 3093 3094 /* Initialize all internally managed lists. */ 3095 INIT_LIST_HEAD(&vport->fc_nodes); 3096 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3097 spin_lock_init(&vport->work_port_lock); 3098 3099 init_timer(&vport->fc_disctmo); 3100 vport->fc_disctmo.function = lpfc_disc_timeout; 3101 vport->fc_disctmo.data = (unsigned long)vport; 3102 3103 init_timer(&vport->fc_fdmitmo); 3104 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 3105 vport->fc_fdmitmo.data = (unsigned long)vport; 3106 3107 init_timer(&vport->els_tmofunc); 3108 vport->els_tmofunc.function = lpfc_els_timeout; 3109 vport->els_tmofunc.data = (unsigned long)vport; 3110 3111 init_timer(&vport->delayed_disc_tmo); 3112 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; 3113 vport->delayed_disc_tmo.data = (unsigned long)vport; 3114 3115 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3116 if (error) 3117 goto out_put_shost; 3118 3119 spin_lock_irq(&phba->hbalock); 3120 list_add_tail(&vport->listentry, &phba->port_list); 3121 spin_unlock_irq(&phba->hbalock); 3122 return vport; 3123 3124 out_put_shost: 3125 scsi_host_put(shost); 3126 out: 3127 return NULL; 3128 } 3129 3130 /** 3131 * destroy_port - destroy an FC port 3132 * @vport: pointer to an lpfc virtual N_Port data structure. 3133 * 3134 * This routine destroys a FC port from the upper layer protocol. All the 3135 * resources associated with the port are released. 3136 **/ 3137 void 3138 destroy_port(struct lpfc_vport *vport) 3139 { 3140 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3141 struct lpfc_hba *phba = vport->phba; 3142 3143 lpfc_debugfs_terminate(vport); 3144 fc_remove_host(shost); 3145 scsi_remove_host(shost); 3146 3147 spin_lock_irq(&phba->hbalock); 3148 list_del_init(&vport->listentry); 3149 spin_unlock_irq(&phba->hbalock); 3150 3151 lpfc_cleanup(vport); 3152 return; 3153 } 3154 3155 /** 3156 * lpfc_get_instance - Get a unique integer ID 3157 * 3158 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 3159 * uses the kernel idr facility to perform the task. 3160 * 3161 * Return codes: 3162 * instance - a unique integer ID allocated as the new instance. 3163 * -1 - lpfc get instance failed. 3164 **/ 3165 int 3166 lpfc_get_instance(void) 3167 { 3168 int ret; 3169 3170 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); 3171 return ret < 0 ? -1 : ret; 3172 } 3173 3174 /** 3175 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 3176 * @shost: pointer to SCSI host data structure. 3177 * @time: elapsed time of the scan in jiffies. 3178 * 3179 * This routine is called by the SCSI layer with a SCSI host to determine 3180 * whether the scan host is finished. 3181 * 3182 * Note: there is no scan_start function as adapter initialization will have 3183 * asynchronously kicked off the link initialization. 3184 * 3185 * Return codes 3186 * 0 - SCSI host scan is not over yet. 3187 * 1 - SCSI host scan is over. 3188 **/ 3189 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 3190 { 3191 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3192 struct lpfc_hba *phba = vport->phba; 3193 int stat = 0; 3194 3195 spin_lock_irq(shost->host_lock); 3196 3197 if (vport->load_flag & FC_UNLOADING) { 3198 stat = 1; 3199 goto finished; 3200 } 3201 if (time >= 30 * HZ) { 3202 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3203 "0461 Scanning longer than 30 " 3204 "seconds. Continuing initialization\n"); 3205 stat = 1; 3206 goto finished; 3207 } 3208 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 3209 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3210 "0465 Link down longer than 15 " 3211 "seconds. Continuing initialization\n"); 3212 stat = 1; 3213 goto finished; 3214 } 3215 3216 if (vport->port_state != LPFC_VPORT_READY) 3217 goto finished; 3218 if (vport->num_disc_nodes || vport->fc_prli_sent) 3219 goto finished; 3220 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 3221 goto finished; 3222 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 3223 goto finished; 3224 3225 stat = 1; 3226 3227 finished: 3228 spin_unlock_irq(shost->host_lock); 3229 return stat; 3230 } 3231 3232 /** 3233 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 3234 * @shost: pointer to SCSI host data structure. 3235 * 3236 * This routine initializes a given SCSI host attributes on a FC port. The 3237 * SCSI host can be either on top of a physical port or a virtual port. 3238 **/ 3239 void lpfc_host_attrib_init(struct Scsi_Host *shost) 3240 { 3241 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3242 struct lpfc_hba *phba = vport->phba; 3243 /* 3244 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 3245 */ 3246 3247 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 3248 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3249 fc_host_supported_classes(shost) = FC_COS_CLASS3; 3250 3251 memset(fc_host_supported_fc4s(shost), 0, 3252 sizeof(fc_host_supported_fc4s(shost))); 3253 fc_host_supported_fc4s(shost)[2] = 1; 3254 fc_host_supported_fc4s(shost)[7] = 1; 3255 3256 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 3257 sizeof fc_host_symbolic_name(shost)); 3258 3259 fc_host_supported_speeds(shost) = 0; 3260 if (phba->lmt & LMT_16Gb) 3261 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 3262 if (phba->lmt & LMT_10Gb) 3263 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 3264 if (phba->lmt & LMT_8Gb) 3265 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 3266 if (phba->lmt & LMT_4Gb) 3267 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 3268 if (phba->lmt & LMT_2Gb) 3269 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 3270 if (phba->lmt & LMT_1Gb) 3271 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 3272 3273 fc_host_maxframe_size(shost) = 3274 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 3275 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 3276 3277 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 3278 3279 /* This value is also unchanging */ 3280 memset(fc_host_active_fc4s(shost), 0, 3281 sizeof(fc_host_active_fc4s(shost))); 3282 fc_host_active_fc4s(shost)[2] = 1; 3283 fc_host_active_fc4s(shost)[7] = 1; 3284 3285 fc_host_max_npiv_vports(shost) = phba->max_vpi; 3286 spin_lock_irq(shost->host_lock); 3287 vport->load_flag &= ~FC_LOADING; 3288 spin_unlock_irq(shost->host_lock); 3289 } 3290 3291 /** 3292 * lpfc_stop_port_s3 - Stop SLI3 device port 3293 * @phba: pointer to lpfc hba data structure. 3294 * 3295 * This routine is invoked to stop an SLI3 device port, it stops the device 3296 * from generating interrupts and stops the device driver's timers for the 3297 * device. 3298 **/ 3299 static void 3300 lpfc_stop_port_s3(struct lpfc_hba *phba) 3301 { 3302 /* Clear all interrupt enable conditions */ 3303 writel(0, phba->HCregaddr); 3304 readl(phba->HCregaddr); /* flush */ 3305 /* Clear all pending interrupts */ 3306 writel(0xffffffff, phba->HAregaddr); 3307 readl(phba->HAregaddr); /* flush */ 3308 3309 /* Reset some HBA SLI setup states */ 3310 lpfc_stop_hba_timers(phba); 3311 phba->pport->work_port_events = 0; 3312 } 3313 3314 /** 3315 * lpfc_stop_port_s4 - Stop SLI4 device port 3316 * @phba: pointer to lpfc hba data structure. 3317 * 3318 * This routine is invoked to stop an SLI4 device port, it stops the device 3319 * from generating interrupts and stops the device driver's timers for the 3320 * device. 3321 **/ 3322 static void 3323 lpfc_stop_port_s4(struct lpfc_hba *phba) 3324 { 3325 /* Reset some HBA SLI4 setup states */ 3326 lpfc_stop_hba_timers(phba); 3327 phba->pport->work_port_events = 0; 3328 phba->sli4_hba.intr_enable = 0; 3329 } 3330 3331 /** 3332 * lpfc_stop_port - Wrapper function for stopping hba port 3333 * @phba: Pointer to HBA context object. 3334 * 3335 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 3336 * the API jump table function pointer from the lpfc_hba struct. 3337 **/ 3338 void 3339 lpfc_stop_port(struct lpfc_hba *phba) 3340 { 3341 phba->lpfc_stop_port(phba); 3342 } 3343 3344 /** 3345 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 3346 * @phba: Pointer to hba for which this call is being executed. 3347 * 3348 * This routine starts the timer waiting for the FCF rediscovery to complete. 3349 **/ 3350 void 3351 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 3352 { 3353 unsigned long fcf_redisc_wait_tmo = 3354 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 3355 /* Start fcf rediscovery wait period timer */ 3356 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 3357 spin_lock_irq(&phba->hbalock); 3358 /* Allow action to new fcf asynchronous event */ 3359 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 3360 /* Mark the FCF rediscovery pending state */ 3361 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 3362 spin_unlock_irq(&phba->hbalock); 3363 } 3364 3365 /** 3366 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 3367 * @ptr: Map to lpfc_hba data structure pointer. 3368 * 3369 * This routine is invoked when waiting for FCF table rediscover has been 3370 * timed out. If new FCF record(s) has (have) been discovered during the 3371 * wait period, a new FCF event shall be added to the FCOE async event 3372 * list, and then worker thread shall be waked up for processing from the 3373 * worker thread context. 3374 **/ 3375 void 3376 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 3377 { 3378 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 3379 3380 /* Don't send FCF rediscovery event if timer cancelled */ 3381 spin_lock_irq(&phba->hbalock); 3382 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 3383 spin_unlock_irq(&phba->hbalock); 3384 return; 3385 } 3386 /* Clear FCF rediscovery timer pending flag */ 3387 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 3388 /* FCF rediscovery event to worker thread */ 3389 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 3390 spin_unlock_irq(&phba->hbalock); 3391 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3392 "2776 FCF rediscover quiescent timer expired\n"); 3393 /* wake up worker thread */ 3394 lpfc_worker_wake_up(phba); 3395 } 3396 3397 /** 3398 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3399 * @phba: pointer to lpfc hba data structure. 3400 * @acqe_link: pointer to the async link completion queue entry. 3401 * 3402 * This routine is to parse the SLI4 link-attention link fault code and 3403 * translate it into the base driver's read link attention mailbox command 3404 * status. 3405 * 3406 * Return: Link-attention status in terms of base driver's coding. 3407 **/ 3408 static uint16_t 3409 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3410 struct lpfc_acqe_link *acqe_link) 3411 { 3412 uint16_t latt_fault; 3413 3414 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3415 case LPFC_ASYNC_LINK_FAULT_NONE: 3416 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3417 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3418 latt_fault = 0; 3419 break; 3420 default: 3421 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3422 "0398 Invalid link fault code: x%x\n", 3423 bf_get(lpfc_acqe_link_fault, acqe_link)); 3424 latt_fault = MBXERR_ERROR; 3425 break; 3426 } 3427 return latt_fault; 3428 } 3429 3430 /** 3431 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3432 * @phba: pointer to lpfc hba data structure. 3433 * @acqe_link: pointer to the async link completion queue entry. 3434 * 3435 * This routine is to parse the SLI4 link attention type and translate it 3436 * into the base driver's link attention type coding. 3437 * 3438 * Return: Link attention type in terms of base driver's coding. 3439 **/ 3440 static uint8_t 3441 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3442 struct lpfc_acqe_link *acqe_link) 3443 { 3444 uint8_t att_type; 3445 3446 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3447 case LPFC_ASYNC_LINK_STATUS_DOWN: 3448 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3449 att_type = LPFC_ATT_LINK_DOWN; 3450 break; 3451 case LPFC_ASYNC_LINK_STATUS_UP: 3452 /* Ignore physical link up events - wait for logical link up */ 3453 att_type = LPFC_ATT_RESERVED; 3454 break; 3455 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3456 att_type = LPFC_ATT_LINK_UP; 3457 break; 3458 default: 3459 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3460 "0399 Invalid link attention type: x%x\n", 3461 bf_get(lpfc_acqe_link_status, acqe_link)); 3462 att_type = LPFC_ATT_RESERVED; 3463 break; 3464 } 3465 return att_type; 3466 } 3467 3468 /** 3469 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3470 * @phba: pointer to lpfc hba data structure. 3471 * @acqe_link: pointer to the async link completion queue entry. 3472 * 3473 * This routine is to parse the SLI4 link-attention link speed and translate 3474 * it into the base driver's link-attention link speed coding. 3475 * 3476 * Return: Link-attention link speed in terms of base driver's coding. 3477 **/ 3478 static uint8_t 3479 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3480 struct lpfc_acqe_link *acqe_link) 3481 { 3482 uint8_t link_speed; 3483 3484 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3485 case LPFC_ASYNC_LINK_SPEED_ZERO: 3486 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3487 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3488 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3489 break; 3490 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3491 link_speed = LPFC_LINK_SPEED_1GHZ; 3492 break; 3493 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3494 link_speed = LPFC_LINK_SPEED_10GHZ; 3495 break; 3496 default: 3497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3498 "0483 Invalid link-attention link speed: x%x\n", 3499 bf_get(lpfc_acqe_link_speed, acqe_link)); 3500 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3501 break; 3502 } 3503 return link_speed; 3504 } 3505 3506 /** 3507 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 3508 * @phba: pointer to lpfc hba data structure. 3509 * 3510 * This routine is to get an SLI3 FC port's link speed in Mbps. 3511 * 3512 * Return: link speed in terms of Mbps. 3513 **/ 3514 uint32_t 3515 lpfc_sli_port_speed_get(struct lpfc_hba *phba) 3516 { 3517 uint32_t link_speed; 3518 3519 if (!lpfc_is_link_up(phba)) 3520 return 0; 3521 3522 switch (phba->fc_linkspeed) { 3523 case LPFC_LINK_SPEED_1GHZ: 3524 link_speed = 1000; 3525 break; 3526 case LPFC_LINK_SPEED_2GHZ: 3527 link_speed = 2000; 3528 break; 3529 case LPFC_LINK_SPEED_4GHZ: 3530 link_speed = 4000; 3531 break; 3532 case LPFC_LINK_SPEED_8GHZ: 3533 link_speed = 8000; 3534 break; 3535 case LPFC_LINK_SPEED_10GHZ: 3536 link_speed = 10000; 3537 break; 3538 case LPFC_LINK_SPEED_16GHZ: 3539 link_speed = 16000; 3540 break; 3541 default: 3542 link_speed = 0; 3543 } 3544 return link_speed; 3545 } 3546 3547 /** 3548 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 3549 * @phba: pointer to lpfc hba data structure. 3550 * @evt_code: asynchronous event code. 3551 * @speed_code: asynchronous event link speed code. 3552 * 3553 * This routine is to parse the giving SLI4 async event link speed code into 3554 * value of Mbps for the link speed. 3555 * 3556 * Return: link speed in terms of Mbps. 3557 **/ 3558 static uint32_t 3559 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 3560 uint8_t speed_code) 3561 { 3562 uint32_t port_speed; 3563 3564 switch (evt_code) { 3565 case LPFC_TRAILER_CODE_LINK: 3566 switch (speed_code) { 3567 case LPFC_EVT_CODE_LINK_NO_LINK: 3568 port_speed = 0; 3569 break; 3570 case LPFC_EVT_CODE_LINK_10_MBIT: 3571 port_speed = 10; 3572 break; 3573 case LPFC_EVT_CODE_LINK_100_MBIT: 3574 port_speed = 100; 3575 break; 3576 case LPFC_EVT_CODE_LINK_1_GBIT: 3577 port_speed = 1000; 3578 break; 3579 case LPFC_EVT_CODE_LINK_10_GBIT: 3580 port_speed = 10000; 3581 break; 3582 default: 3583 port_speed = 0; 3584 } 3585 break; 3586 case LPFC_TRAILER_CODE_FC: 3587 switch (speed_code) { 3588 case LPFC_EVT_CODE_FC_NO_LINK: 3589 port_speed = 0; 3590 break; 3591 case LPFC_EVT_CODE_FC_1_GBAUD: 3592 port_speed = 1000; 3593 break; 3594 case LPFC_EVT_CODE_FC_2_GBAUD: 3595 port_speed = 2000; 3596 break; 3597 case LPFC_EVT_CODE_FC_4_GBAUD: 3598 port_speed = 4000; 3599 break; 3600 case LPFC_EVT_CODE_FC_8_GBAUD: 3601 port_speed = 8000; 3602 break; 3603 case LPFC_EVT_CODE_FC_10_GBAUD: 3604 port_speed = 10000; 3605 break; 3606 case LPFC_EVT_CODE_FC_16_GBAUD: 3607 port_speed = 16000; 3608 break; 3609 default: 3610 port_speed = 0; 3611 } 3612 break; 3613 default: 3614 port_speed = 0; 3615 } 3616 return port_speed; 3617 } 3618 3619 /** 3620 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 3621 * @phba: pointer to lpfc hba data structure. 3622 * @acqe_link: pointer to the async link completion queue entry. 3623 * 3624 * This routine is to handle the SLI4 asynchronous FCoE link event. 3625 **/ 3626 static void 3627 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3628 struct lpfc_acqe_link *acqe_link) 3629 { 3630 struct lpfc_dmabuf *mp; 3631 LPFC_MBOXQ_t *pmb; 3632 MAILBOX_t *mb; 3633 struct lpfc_mbx_read_top *la; 3634 uint8_t att_type; 3635 int rc; 3636 3637 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3638 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 3639 return; 3640 phba->fcoe_eventtag = acqe_link->event_tag; 3641 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3642 if (!pmb) { 3643 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3644 "0395 The mboxq allocation failed\n"); 3645 return; 3646 } 3647 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3648 if (!mp) { 3649 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3650 "0396 The lpfc_dmabuf allocation failed\n"); 3651 goto out_free_pmb; 3652 } 3653 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3654 if (!mp->virt) { 3655 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3656 "0397 The mbuf allocation failed\n"); 3657 goto out_free_dmabuf; 3658 } 3659 3660 /* Cleanup any outstanding ELS commands */ 3661 lpfc_els_flush_all_cmd(phba); 3662 3663 /* Block ELS IOCBs until we have done process link event */ 3664 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3665 3666 /* Update link event statistics */ 3667 phba->sli.slistat.link_event++; 3668 3669 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3670 lpfc_read_topology(phba, pmb, mp); 3671 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3672 pmb->vport = phba->pport; 3673 3674 /* Keep the link status for extra SLI4 state machine reference */ 3675 phba->sli4_hba.link_state.speed = 3676 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 3677 bf_get(lpfc_acqe_link_speed, acqe_link)); 3678 phba->sli4_hba.link_state.duplex = 3679 bf_get(lpfc_acqe_link_duplex, acqe_link); 3680 phba->sli4_hba.link_state.status = 3681 bf_get(lpfc_acqe_link_status, acqe_link); 3682 phba->sli4_hba.link_state.type = 3683 bf_get(lpfc_acqe_link_type, acqe_link); 3684 phba->sli4_hba.link_state.number = 3685 bf_get(lpfc_acqe_link_number, acqe_link); 3686 phba->sli4_hba.link_state.fault = 3687 bf_get(lpfc_acqe_link_fault, acqe_link); 3688 phba->sli4_hba.link_state.logical_speed = 3689 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 3690 3691 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3692 "2900 Async FC/FCoE Link event - Speed:%dGBit " 3693 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 3694 "Logical speed:%dMbps Fault:%d\n", 3695 phba->sli4_hba.link_state.speed, 3696 phba->sli4_hba.link_state.topology, 3697 phba->sli4_hba.link_state.status, 3698 phba->sli4_hba.link_state.type, 3699 phba->sli4_hba.link_state.number, 3700 phba->sli4_hba.link_state.logical_speed, 3701 phba->sli4_hba.link_state.fault); 3702 /* 3703 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 3704 * topology info. Note: Optional for non FC-AL ports. 3705 */ 3706 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3707 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3708 if (rc == MBX_NOT_FINISHED) 3709 goto out_free_dmabuf; 3710 return; 3711 } 3712 /* 3713 * For FCoE Mode: fill in all the topology information we need and call 3714 * the READ_TOPOLOGY completion routine to continue without actually 3715 * sending the READ_TOPOLOGY mailbox command to the port. 3716 */ 3717 /* Parse and translate status field */ 3718 mb = &pmb->u.mb; 3719 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3720 3721 /* Parse and translate link attention fields */ 3722 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3723 la->eventTag = acqe_link->event_tag; 3724 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 3725 bf_set(lpfc_mbx_read_top_link_spd, la, 3726 lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); 3727 3728 /* Fake the the following irrelvant fields */ 3729 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 3730 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 3731 bf_set(lpfc_mbx_read_top_il, la, 0); 3732 bf_set(lpfc_mbx_read_top_pb, la, 0); 3733 bf_set(lpfc_mbx_read_top_fa, la, 0); 3734 bf_set(lpfc_mbx_read_top_mm, la, 0); 3735 3736 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3737 lpfc_mbx_cmpl_read_topology(phba, pmb); 3738 3739 return; 3740 3741 out_free_dmabuf: 3742 kfree(mp); 3743 out_free_pmb: 3744 mempool_free(pmb, phba->mbox_mem_pool); 3745 } 3746 3747 /** 3748 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 3749 * @phba: pointer to lpfc hba data structure. 3750 * @acqe_fc: pointer to the async fc completion queue entry. 3751 * 3752 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 3753 * that the event was received and then issue a read_topology mailbox command so 3754 * that the rest of the driver will treat it the same as SLI3. 3755 **/ 3756 static void 3757 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 3758 { 3759 struct lpfc_dmabuf *mp; 3760 LPFC_MBOXQ_t *pmb; 3761 int rc; 3762 3763 if (bf_get(lpfc_trailer_type, acqe_fc) != 3764 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 3765 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3766 "2895 Non FC link Event detected.(%d)\n", 3767 bf_get(lpfc_trailer_type, acqe_fc)); 3768 return; 3769 } 3770 /* Keep the link status for extra SLI4 state machine reference */ 3771 phba->sli4_hba.link_state.speed = 3772 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 3773 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 3774 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 3775 phba->sli4_hba.link_state.topology = 3776 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 3777 phba->sli4_hba.link_state.status = 3778 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 3779 phba->sli4_hba.link_state.type = 3780 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 3781 phba->sli4_hba.link_state.number = 3782 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 3783 phba->sli4_hba.link_state.fault = 3784 bf_get(lpfc_acqe_link_fault, acqe_fc); 3785 phba->sli4_hba.link_state.logical_speed = 3786 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 3787 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3788 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 3789 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 3790 "%dMbps Fault:%d\n", 3791 phba->sli4_hba.link_state.speed, 3792 phba->sli4_hba.link_state.topology, 3793 phba->sli4_hba.link_state.status, 3794 phba->sli4_hba.link_state.type, 3795 phba->sli4_hba.link_state.number, 3796 phba->sli4_hba.link_state.logical_speed, 3797 phba->sli4_hba.link_state.fault); 3798 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3799 if (!pmb) { 3800 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3801 "2897 The mboxq allocation failed\n"); 3802 return; 3803 } 3804 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3805 if (!mp) { 3806 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3807 "2898 The lpfc_dmabuf allocation failed\n"); 3808 goto out_free_pmb; 3809 } 3810 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3811 if (!mp->virt) { 3812 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3813 "2899 The mbuf allocation failed\n"); 3814 goto out_free_dmabuf; 3815 } 3816 3817 /* Cleanup any outstanding ELS commands */ 3818 lpfc_els_flush_all_cmd(phba); 3819 3820 /* Block ELS IOCBs until we have done process link event */ 3821 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3822 3823 /* Update link event statistics */ 3824 phba->sli.slistat.link_event++; 3825 3826 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3827 lpfc_read_topology(phba, pmb, mp); 3828 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3829 pmb->vport = phba->pport; 3830 3831 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3832 if (rc == MBX_NOT_FINISHED) 3833 goto out_free_dmabuf; 3834 return; 3835 3836 out_free_dmabuf: 3837 kfree(mp); 3838 out_free_pmb: 3839 mempool_free(pmb, phba->mbox_mem_pool); 3840 } 3841 3842 /** 3843 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 3844 * @phba: pointer to lpfc hba data structure. 3845 * @acqe_fc: pointer to the async SLI completion queue entry. 3846 * 3847 * This routine is to handle the SLI4 asynchronous SLI events. 3848 **/ 3849 static void 3850 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 3851 { 3852 char port_name; 3853 char message[128]; 3854 uint8_t status; 3855 struct lpfc_acqe_misconfigured_event *misconfigured; 3856 3857 /* special case misconfigured event as it contains data for all ports */ 3858 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 3859 LPFC_SLI_INTF_IF_TYPE_2) || 3860 (bf_get(lpfc_trailer_type, acqe_sli) != 3861 LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) { 3862 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3863 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 3864 "x%08x SLI Event Type:%d\n", 3865 acqe_sli->event_data1, acqe_sli->event_data2, 3866 bf_get(lpfc_trailer_type, acqe_sli)); 3867 return; 3868 } 3869 3870 port_name = phba->Port[0]; 3871 if (port_name == 0x00) 3872 port_name = '?'; /* get port name is empty */ 3873 3874 misconfigured = (struct lpfc_acqe_misconfigured_event *) 3875 &acqe_sli->event_data1; 3876 3877 /* fetch the status for this port */ 3878 switch (phba->sli4_hba.lnk_info.lnk_no) { 3879 case LPFC_LINK_NUMBER_0: 3880 status = bf_get(lpfc_sli_misconfigured_port0, 3881 &misconfigured->theEvent); 3882 break; 3883 case LPFC_LINK_NUMBER_1: 3884 status = bf_get(lpfc_sli_misconfigured_port1, 3885 &misconfigured->theEvent); 3886 break; 3887 case LPFC_LINK_NUMBER_2: 3888 status = bf_get(lpfc_sli_misconfigured_port2, 3889 &misconfigured->theEvent); 3890 break; 3891 case LPFC_LINK_NUMBER_3: 3892 status = bf_get(lpfc_sli_misconfigured_port3, 3893 &misconfigured->theEvent); 3894 break; 3895 default: 3896 status = ~LPFC_SLI_EVENT_STATUS_VALID; 3897 break; 3898 } 3899 3900 switch (status) { 3901 case LPFC_SLI_EVENT_STATUS_VALID: 3902 return; /* no message if the sfp is okay */ 3903 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 3904 sprintf(message, "Optics faulted/incorrectly installed/not " \ 3905 "installed - Reseat optics, if issue not " 3906 "resolved, replace."); 3907 break; 3908 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 3909 sprintf(message, 3910 "Optics of two types installed - Remove one optic or " \ 3911 "install matching pair of optics."); 3912 break; 3913 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 3914 sprintf(message, "Incompatible optics - Replace with " \ 3915 "compatible optics for card to function."); 3916 break; 3917 default: 3918 /* firmware is reporting a status we don't know about */ 3919 sprintf(message, "Unknown event status x%02x", status); 3920 break; 3921 } 3922 3923 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3924 "3176 Misconfigured Physical Port - " 3925 "Port Name %c %s\n", port_name, message); 3926 } 3927 3928 /** 3929 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3930 * @vport: pointer to vport data structure. 3931 * 3932 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3933 * response to a CVL event. 3934 * 3935 * Return the pointer to the ndlp with the vport if successful, otherwise 3936 * return NULL. 3937 **/ 3938 static struct lpfc_nodelist * 3939 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3940 { 3941 struct lpfc_nodelist *ndlp; 3942 struct Scsi_Host *shost; 3943 struct lpfc_hba *phba; 3944 3945 if (!vport) 3946 return NULL; 3947 phba = vport->phba; 3948 if (!phba) 3949 return NULL; 3950 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3951 if (!ndlp) { 3952 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3953 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3954 if (!ndlp) 3955 return 0; 3956 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3957 /* Set the node type */ 3958 ndlp->nlp_type |= NLP_FABRIC; 3959 /* Put ndlp onto node list */ 3960 lpfc_enqueue_node(vport, ndlp); 3961 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3962 /* re-setup ndlp without removing from node list */ 3963 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3964 if (!ndlp) 3965 return 0; 3966 } 3967 if ((phba->pport->port_state < LPFC_FLOGI) && 3968 (phba->pport->port_state != LPFC_VPORT_FAILED)) 3969 return NULL; 3970 /* If virtual link is not yet instantiated ignore CVL */ 3971 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 3972 && (vport->port_state != LPFC_VPORT_FAILED)) 3973 return NULL; 3974 shost = lpfc_shost_from_vport(vport); 3975 if (!shost) 3976 return NULL; 3977 lpfc_linkdown_port(vport); 3978 lpfc_cleanup_pending_mbox(vport); 3979 spin_lock_irq(shost->host_lock); 3980 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3981 spin_unlock_irq(shost->host_lock); 3982 3983 return ndlp; 3984 } 3985 3986 /** 3987 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3988 * @vport: pointer to lpfc hba data structure. 3989 * 3990 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3991 * response to a FCF dead event. 3992 **/ 3993 static void 3994 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3995 { 3996 struct lpfc_vport **vports; 3997 int i; 3998 3999 vports = lpfc_create_vport_work_array(phba); 4000 if (vports) 4001 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 4002 lpfc_sli4_perform_vport_cvl(vports[i]); 4003 lpfc_destroy_vport_work_array(phba, vports); 4004 } 4005 4006 /** 4007 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 4008 * @phba: pointer to lpfc hba data structure. 4009 * @acqe_link: pointer to the async fcoe completion queue entry. 4010 * 4011 * This routine is to handle the SLI4 asynchronous fcoe event. 4012 **/ 4013 static void 4014 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 4015 struct lpfc_acqe_fip *acqe_fip) 4016 { 4017 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 4018 int rc; 4019 struct lpfc_vport *vport; 4020 struct lpfc_nodelist *ndlp; 4021 struct Scsi_Host *shost; 4022 int active_vlink_present; 4023 struct lpfc_vport **vports; 4024 int i; 4025 4026 phba->fc_eventTag = acqe_fip->event_tag; 4027 phba->fcoe_eventtag = acqe_fip->event_tag; 4028 switch (event_type) { 4029 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 4030 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 4031 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 4032 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4033 LOG_DISCOVERY, 4034 "2546 New FCF event, evt_tag:x%x, " 4035 "index:x%x\n", 4036 acqe_fip->event_tag, 4037 acqe_fip->index); 4038 else 4039 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 4040 LOG_DISCOVERY, 4041 "2788 FCF param modified event, " 4042 "evt_tag:x%x, index:x%x\n", 4043 acqe_fip->event_tag, 4044 acqe_fip->index); 4045 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4046 /* 4047 * During period of FCF discovery, read the FCF 4048 * table record indexed by the event to update 4049 * FCF roundrobin failover eligible FCF bmask. 4050 */ 4051 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4052 LOG_DISCOVERY, 4053 "2779 Read FCF (x%x) for updating " 4054 "roundrobin FCF failover bmask\n", 4055 acqe_fip->index); 4056 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 4057 } 4058 4059 /* If the FCF discovery is in progress, do nothing. */ 4060 spin_lock_irq(&phba->hbalock); 4061 if (phba->hba_flag & FCF_TS_INPROG) { 4062 spin_unlock_irq(&phba->hbalock); 4063 break; 4064 } 4065 /* If fast FCF failover rescan event is pending, do nothing */ 4066 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 4067 spin_unlock_irq(&phba->hbalock); 4068 break; 4069 } 4070 4071 /* If the FCF has been in discovered state, do nothing. */ 4072 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 4073 spin_unlock_irq(&phba->hbalock); 4074 break; 4075 } 4076 spin_unlock_irq(&phba->hbalock); 4077 4078 /* Otherwise, scan the entire FCF table and re-discover SAN */ 4079 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4080 "2770 Start FCF table scan per async FCF " 4081 "event, evt_tag:x%x, index:x%x\n", 4082 acqe_fip->event_tag, acqe_fip->index); 4083 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 4084 LPFC_FCOE_FCF_GET_FIRST); 4085 if (rc) 4086 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4087 "2547 Issue FCF scan read FCF mailbox " 4088 "command failed (x%x)\n", rc); 4089 break; 4090 4091 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 4092 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4093 "2548 FCF Table full count 0x%x tag 0x%x\n", 4094 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 4095 acqe_fip->event_tag); 4096 break; 4097 4098 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 4099 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4100 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4101 "2549 FCF (x%x) disconnected from network, " 4102 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 4103 /* 4104 * If we are in the middle of FCF failover process, clear 4105 * the corresponding FCF bit in the roundrobin bitmap. 4106 */ 4107 spin_lock_irq(&phba->hbalock); 4108 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4109 spin_unlock_irq(&phba->hbalock); 4110 /* Update FLOGI FCF failover eligible FCF bmask */ 4111 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 4112 break; 4113 } 4114 spin_unlock_irq(&phba->hbalock); 4115 4116 /* If the event is not for currently used fcf do nothing */ 4117 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 4118 break; 4119 4120 /* 4121 * Otherwise, request the port to rediscover the entire FCF 4122 * table for a fast recovery from case that the current FCF 4123 * is no longer valid as we are not in the middle of FCF 4124 * failover process already. 4125 */ 4126 spin_lock_irq(&phba->hbalock); 4127 /* Mark the fast failover process in progress */ 4128 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 4129 spin_unlock_irq(&phba->hbalock); 4130 4131 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4132 "2771 Start FCF fast failover process due to " 4133 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 4134 "\n", acqe_fip->event_tag, acqe_fip->index); 4135 rc = lpfc_sli4_redisc_fcf_table(phba); 4136 if (rc) { 4137 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4138 LOG_DISCOVERY, 4139 "2772 Issue FCF rediscover mabilbox " 4140 "command failed, fail through to FCF " 4141 "dead event\n"); 4142 spin_lock_irq(&phba->hbalock); 4143 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 4144 spin_unlock_irq(&phba->hbalock); 4145 /* 4146 * Last resort will fail over by treating this 4147 * as a link down to FCF registration. 4148 */ 4149 lpfc_sli4_fcf_dead_failthrough(phba); 4150 } else { 4151 /* Reset FCF roundrobin bmask for new discovery */ 4152 lpfc_sli4_clear_fcf_rr_bmask(phba); 4153 /* 4154 * Handling fast FCF failover to a DEAD FCF event is 4155 * considered equalivant to receiving CVL to all vports. 4156 */ 4157 lpfc_sli4_perform_all_vport_cvl(phba); 4158 } 4159 break; 4160 case LPFC_FIP_EVENT_TYPE_CVL: 4161 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4162 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4163 "2718 Clear Virtual Link Received for VPI 0x%x" 4164 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 4165 4166 vport = lpfc_find_vport_by_vpid(phba, 4167 acqe_fip->index); 4168 ndlp = lpfc_sli4_perform_vport_cvl(vport); 4169 if (!ndlp) 4170 break; 4171 active_vlink_present = 0; 4172 4173 vports = lpfc_create_vport_work_array(phba); 4174 if (vports) { 4175 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 4176 i++) { 4177 if ((!(vports[i]->fc_flag & 4178 FC_VPORT_CVL_RCVD)) && 4179 (vports[i]->port_state > LPFC_FDISC)) { 4180 active_vlink_present = 1; 4181 break; 4182 } 4183 } 4184 lpfc_destroy_vport_work_array(phba, vports); 4185 } 4186 4187 if (active_vlink_present) { 4188 /* 4189 * If there are other active VLinks present, 4190 * re-instantiate the Vlink using FDISC. 4191 */ 4192 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 4193 shost = lpfc_shost_from_vport(vport); 4194 spin_lock_irq(shost->host_lock); 4195 ndlp->nlp_flag |= NLP_DELAY_TMO; 4196 spin_unlock_irq(shost->host_lock); 4197 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 4198 vport->port_state = LPFC_FDISC; 4199 } else { 4200 /* 4201 * Otherwise, we request port to rediscover 4202 * the entire FCF table for a fast recovery 4203 * from possible case that the current FCF 4204 * is no longer valid if we are not already 4205 * in the FCF failover process. 4206 */ 4207 spin_lock_irq(&phba->hbalock); 4208 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4209 spin_unlock_irq(&phba->hbalock); 4210 break; 4211 } 4212 /* Mark the fast failover process in progress */ 4213 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 4214 spin_unlock_irq(&phba->hbalock); 4215 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4216 LOG_DISCOVERY, 4217 "2773 Start FCF failover per CVL, " 4218 "evt_tag:x%x\n", acqe_fip->event_tag); 4219 rc = lpfc_sli4_redisc_fcf_table(phba); 4220 if (rc) { 4221 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4222 LOG_DISCOVERY, 4223 "2774 Issue FCF rediscover " 4224 "mabilbox command failed, " 4225 "through to CVL event\n"); 4226 spin_lock_irq(&phba->hbalock); 4227 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 4228 spin_unlock_irq(&phba->hbalock); 4229 /* 4230 * Last resort will be re-try on the 4231 * the current registered FCF entry. 4232 */ 4233 lpfc_retry_pport_discovery(phba); 4234 } else 4235 /* 4236 * Reset FCF roundrobin bmask for new 4237 * discovery. 4238 */ 4239 lpfc_sli4_clear_fcf_rr_bmask(phba); 4240 } 4241 break; 4242 default: 4243 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4244 "0288 Unknown FCoE event type 0x%x event tag " 4245 "0x%x\n", event_type, acqe_fip->event_tag); 4246 break; 4247 } 4248 } 4249 4250 /** 4251 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 4252 * @phba: pointer to lpfc hba data structure. 4253 * @acqe_link: pointer to the async dcbx completion queue entry. 4254 * 4255 * This routine is to handle the SLI4 asynchronous dcbx event. 4256 **/ 4257 static void 4258 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 4259 struct lpfc_acqe_dcbx *acqe_dcbx) 4260 { 4261 phba->fc_eventTag = acqe_dcbx->event_tag; 4262 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4263 "0290 The SLI4 DCBX asynchronous event is not " 4264 "handled yet\n"); 4265 } 4266 4267 /** 4268 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 4269 * @phba: pointer to lpfc hba data structure. 4270 * @acqe_link: pointer to the async grp5 completion queue entry. 4271 * 4272 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 4273 * is an asynchronous notified of a logical link speed change. The Port 4274 * reports the logical link speed in units of 10Mbps. 4275 **/ 4276 static void 4277 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 4278 struct lpfc_acqe_grp5 *acqe_grp5) 4279 { 4280 uint16_t prev_ll_spd; 4281 4282 phba->fc_eventTag = acqe_grp5->event_tag; 4283 phba->fcoe_eventtag = acqe_grp5->event_tag; 4284 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 4285 phba->sli4_hba.link_state.logical_speed = 4286 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 4287 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4288 "2789 GRP5 Async Event: Updating logical link speed " 4289 "from %dMbps to %dMbps\n", prev_ll_spd, 4290 phba->sli4_hba.link_state.logical_speed); 4291 } 4292 4293 /** 4294 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 4295 * @phba: pointer to lpfc hba data structure. 4296 * 4297 * This routine is invoked by the worker thread to process all the pending 4298 * SLI4 asynchronous events. 4299 **/ 4300 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 4301 { 4302 struct lpfc_cq_event *cq_event; 4303 4304 /* First, declare the async event has been handled */ 4305 spin_lock_irq(&phba->hbalock); 4306 phba->hba_flag &= ~ASYNC_EVENT; 4307 spin_unlock_irq(&phba->hbalock); 4308 /* Now, handle all the async events */ 4309 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 4310 /* Get the first event from the head of the event queue */ 4311 spin_lock_irq(&phba->hbalock); 4312 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 4313 cq_event, struct lpfc_cq_event, list); 4314 spin_unlock_irq(&phba->hbalock); 4315 /* Process the asynchronous event */ 4316 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 4317 case LPFC_TRAILER_CODE_LINK: 4318 lpfc_sli4_async_link_evt(phba, 4319 &cq_event->cqe.acqe_link); 4320 break; 4321 case LPFC_TRAILER_CODE_FCOE: 4322 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 4323 break; 4324 case LPFC_TRAILER_CODE_DCBX: 4325 lpfc_sli4_async_dcbx_evt(phba, 4326 &cq_event->cqe.acqe_dcbx); 4327 break; 4328 case LPFC_TRAILER_CODE_GRP5: 4329 lpfc_sli4_async_grp5_evt(phba, 4330 &cq_event->cqe.acqe_grp5); 4331 break; 4332 case LPFC_TRAILER_CODE_FC: 4333 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 4334 break; 4335 case LPFC_TRAILER_CODE_SLI: 4336 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 4337 break; 4338 default: 4339 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4340 "1804 Invalid asynchrous event code: " 4341 "x%x\n", bf_get(lpfc_trailer_code, 4342 &cq_event->cqe.mcqe_cmpl)); 4343 break; 4344 } 4345 /* Free the completion event processed to the free pool */ 4346 lpfc_sli4_cq_event_release(phba, cq_event); 4347 } 4348 } 4349 4350 /** 4351 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 4352 * @phba: pointer to lpfc hba data structure. 4353 * 4354 * This routine is invoked by the worker thread to process FCF table 4355 * rediscovery pending completion event. 4356 **/ 4357 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 4358 { 4359 int rc; 4360 4361 spin_lock_irq(&phba->hbalock); 4362 /* Clear FCF rediscovery timeout event */ 4363 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 4364 /* Clear driver fast failover FCF record flag */ 4365 phba->fcf.failover_rec.flag = 0; 4366 /* Set state for FCF fast failover */ 4367 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 4368 spin_unlock_irq(&phba->hbalock); 4369 4370 /* Scan FCF table from the first entry to re-discover SAN */ 4371 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4372 "2777 Start post-quiescent FCF table scan\n"); 4373 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 4374 if (rc) 4375 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4376 "2747 Issue FCF scan read FCF mailbox " 4377 "command failed 0x%x\n", rc); 4378 } 4379 4380 /** 4381 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 4382 * @phba: pointer to lpfc hba data structure. 4383 * @dev_grp: The HBA PCI-Device group number. 4384 * 4385 * This routine is invoked to set up the per HBA PCI-Device group function 4386 * API jump table entries. 4387 * 4388 * Return: 0 if success, otherwise -ENODEV 4389 **/ 4390 int 4391 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4392 { 4393 int rc; 4394 4395 /* Set up lpfc PCI-device group */ 4396 phba->pci_dev_grp = dev_grp; 4397 4398 /* The LPFC_PCI_DEV_OC uses SLI4 */ 4399 if (dev_grp == LPFC_PCI_DEV_OC) 4400 phba->sli_rev = LPFC_SLI_REV4; 4401 4402 /* Set up device INIT API function jump table */ 4403 rc = lpfc_init_api_table_setup(phba, dev_grp); 4404 if (rc) 4405 return -ENODEV; 4406 /* Set up SCSI API function jump table */ 4407 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 4408 if (rc) 4409 return -ENODEV; 4410 /* Set up SLI API function jump table */ 4411 rc = lpfc_sli_api_table_setup(phba, dev_grp); 4412 if (rc) 4413 return -ENODEV; 4414 /* Set up MBOX API function jump table */ 4415 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 4416 if (rc) 4417 return -ENODEV; 4418 4419 return 0; 4420 } 4421 4422 /** 4423 * lpfc_log_intr_mode - Log the active interrupt mode 4424 * @phba: pointer to lpfc hba data structure. 4425 * @intr_mode: active interrupt mode adopted. 4426 * 4427 * This routine it invoked to log the currently used active interrupt mode 4428 * to the device. 4429 **/ 4430 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 4431 { 4432 switch (intr_mode) { 4433 case 0: 4434 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4435 "0470 Enable INTx interrupt mode.\n"); 4436 break; 4437 case 1: 4438 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4439 "0481 Enabled MSI interrupt mode.\n"); 4440 break; 4441 case 2: 4442 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4443 "0480 Enabled MSI-X interrupt mode.\n"); 4444 break; 4445 default: 4446 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4447 "0482 Illegal interrupt mode.\n"); 4448 break; 4449 } 4450 return; 4451 } 4452 4453 /** 4454 * lpfc_enable_pci_dev - Enable a generic PCI device. 4455 * @phba: pointer to lpfc hba data structure. 4456 * 4457 * This routine is invoked to enable the PCI device that is common to all 4458 * PCI devices. 4459 * 4460 * Return codes 4461 * 0 - successful 4462 * other values - error 4463 **/ 4464 static int 4465 lpfc_enable_pci_dev(struct lpfc_hba *phba) 4466 { 4467 struct pci_dev *pdev; 4468 int bars = 0; 4469 4470 /* Obtain PCI device reference */ 4471 if (!phba->pcidev) 4472 goto out_error; 4473 else 4474 pdev = phba->pcidev; 4475 /* Select PCI BARs */ 4476 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4477 /* Enable PCI device */ 4478 if (pci_enable_device_mem(pdev)) 4479 goto out_error; 4480 /* Request PCI resource for the device */ 4481 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 4482 goto out_disable_device; 4483 /* Set up device as PCI master and save state for EEH */ 4484 pci_set_master(pdev); 4485 pci_try_set_mwi(pdev); 4486 pci_save_state(pdev); 4487 4488 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 4489 if (pci_find_capability(pdev, PCI_CAP_ID_EXP)) 4490 pdev->needs_freset = 1; 4491 4492 return 0; 4493 4494 out_disable_device: 4495 pci_disable_device(pdev); 4496 out_error: 4497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4498 "1401 Failed to enable pci device, bars:x%x\n", bars); 4499 return -ENODEV; 4500 } 4501 4502 /** 4503 * lpfc_disable_pci_dev - Disable a generic PCI device. 4504 * @phba: pointer to lpfc hba data structure. 4505 * 4506 * This routine is invoked to disable the PCI device that is common to all 4507 * PCI devices. 4508 **/ 4509 static void 4510 lpfc_disable_pci_dev(struct lpfc_hba *phba) 4511 { 4512 struct pci_dev *pdev; 4513 int bars; 4514 4515 /* Obtain PCI device reference */ 4516 if (!phba->pcidev) 4517 return; 4518 else 4519 pdev = phba->pcidev; 4520 /* Select PCI BARs */ 4521 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4522 /* Release PCI resource and disable PCI device */ 4523 pci_release_selected_regions(pdev, bars); 4524 pci_disable_device(pdev); 4525 /* Null out PCI private reference to driver */ 4526 pci_set_drvdata(pdev, NULL); 4527 4528 return; 4529 } 4530 4531 /** 4532 * lpfc_reset_hba - Reset a hba 4533 * @phba: pointer to lpfc hba data structure. 4534 * 4535 * This routine is invoked to reset a hba device. It brings the HBA 4536 * offline, performs a board restart, and then brings the board back 4537 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 4538 * on outstanding mailbox commands. 4539 **/ 4540 void 4541 lpfc_reset_hba(struct lpfc_hba *phba) 4542 { 4543 /* If resets are disabled then set error state and return. */ 4544 if (!phba->cfg_enable_hba_reset) { 4545 phba->link_state = LPFC_HBA_ERROR; 4546 return; 4547 } 4548 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 4549 lpfc_offline(phba); 4550 lpfc_sli_brdrestart(phba); 4551 lpfc_online(phba); 4552 lpfc_unblock_mgmt_io(phba); 4553 } 4554 4555 /** 4556 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 4557 * @phba: pointer to lpfc hba data structure. 4558 * 4559 * This function enables the PCI SR-IOV virtual functions to a physical 4560 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4561 * enable the number of virtual functions to the physical function. As 4562 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4563 * API call does not considered as an error condition for most of the device. 4564 **/ 4565 uint16_t 4566 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 4567 { 4568 struct pci_dev *pdev = phba->pcidev; 4569 uint16_t nr_virtfn; 4570 int pos; 4571 4572 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 4573 if (pos == 0) 4574 return 0; 4575 4576 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 4577 return nr_virtfn; 4578 } 4579 4580 /** 4581 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 4582 * @phba: pointer to lpfc hba data structure. 4583 * @nr_vfn: number of virtual functions to be enabled. 4584 * 4585 * This function enables the PCI SR-IOV virtual functions to a physical 4586 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4587 * enable the number of virtual functions to the physical function. As 4588 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4589 * API call does not considered as an error condition for most of the device. 4590 **/ 4591 int 4592 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 4593 { 4594 struct pci_dev *pdev = phba->pcidev; 4595 uint16_t max_nr_vfn; 4596 int rc; 4597 4598 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 4599 if (nr_vfn > max_nr_vfn) { 4600 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4601 "3057 Requested vfs (%d) greater than " 4602 "supported vfs (%d)", nr_vfn, max_nr_vfn); 4603 return -EINVAL; 4604 } 4605 4606 rc = pci_enable_sriov(pdev, nr_vfn); 4607 if (rc) { 4608 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4609 "2806 Failed to enable sriov on this device " 4610 "with vfn number nr_vf:%d, rc:%d\n", 4611 nr_vfn, rc); 4612 } else 4613 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4614 "2807 Successful enable sriov on this device " 4615 "with vfn number nr_vf:%d\n", nr_vfn); 4616 return rc; 4617 } 4618 4619 /** 4620 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 4621 * @phba: pointer to lpfc hba data structure. 4622 * 4623 * This routine is invoked to set up the driver internal resources specific to 4624 * support the SLI-3 HBA device it attached to. 4625 * 4626 * Return codes 4627 * 0 - successful 4628 * other values - error 4629 **/ 4630 static int 4631 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 4632 { 4633 struct lpfc_sli *psli; 4634 int rc; 4635 4636 /* 4637 * Initialize timers used by driver 4638 */ 4639 4640 /* Heartbeat timer */ 4641 init_timer(&phba->hb_tmofunc); 4642 phba->hb_tmofunc.function = lpfc_hb_timeout; 4643 phba->hb_tmofunc.data = (unsigned long)phba; 4644 4645 psli = &phba->sli; 4646 /* MBOX heartbeat timer */ 4647 init_timer(&psli->mbox_tmo); 4648 psli->mbox_tmo.function = lpfc_mbox_timeout; 4649 psli->mbox_tmo.data = (unsigned long) phba; 4650 /* FCP polling mode timer */ 4651 init_timer(&phba->fcp_poll_timer); 4652 phba->fcp_poll_timer.function = lpfc_poll_timeout; 4653 phba->fcp_poll_timer.data = (unsigned long) phba; 4654 /* Fabric block timer */ 4655 init_timer(&phba->fabric_block_timer); 4656 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4657 phba->fabric_block_timer.data = (unsigned long) phba; 4658 /* EA polling mode timer */ 4659 init_timer(&phba->eratt_poll); 4660 phba->eratt_poll.function = lpfc_poll_eratt; 4661 phba->eratt_poll.data = (unsigned long) phba; 4662 4663 /* Host attention work mask setup */ 4664 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 4665 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 4666 4667 /* Get all the module params for configuring this host */ 4668 lpfc_get_cfgparam(phba); 4669 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 4670 phba->menlo_flag |= HBA_MENLO_SUPPORT; 4671 /* check for menlo minimum sg count */ 4672 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 4673 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 4674 } 4675 4676 if (!phba->sli.ring) 4677 phba->sli.ring = (struct lpfc_sli_ring *) 4678 kzalloc(LPFC_SLI3_MAX_RING * 4679 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 4680 if (!phba->sli.ring) 4681 return -ENOMEM; 4682 4683 /* 4684 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4685 * used to create the sg_dma_buf_pool must be dynamically calculated. 4686 * 2 segments are added since the IOCB needs a command and response bde. 4687 */ 4688 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4689 sizeof(struct fcp_rsp) + 4690 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 4691 4692 if (phba->cfg_enable_bg) { 4693 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 4694 phba->cfg_sg_dma_buf_size += 4695 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 4696 } 4697 4698 /* Also reinitialize the host templates with new values. */ 4699 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4700 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4701 4702 phba->max_vpi = LPFC_MAX_VPI; 4703 /* This will be set to correct value after config_port mbox */ 4704 phba->max_vports = 0; 4705 4706 /* 4707 * Initialize the SLI Layer to run with lpfc HBAs. 4708 */ 4709 lpfc_sli_setup(phba); 4710 lpfc_sli_queue_setup(phba); 4711 4712 /* Allocate device driver memory */ 4713 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 4714 return -ENOMEM; 4715 4716 /* 4717 * Enable sr-iov virtual functions if supported and configured 4718 * through the module parameter. 4719 */ 4720 if (phba->cfg_sriov_nr_virtfn > 0) { 4721 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4722 phba->cfg_sriov_nr_virtfn); 4723 if (rc) { 4724 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4725 "2808 Requested number of SR-IOV " 4726 "virtual functions (%d) is not " 4727 "supported\n", 4728 phba->cfg_sriov_nr_virtfn); 4729 phba->cfg_sriov_nr_virtfn = 0; 4730 } 4731 } 4732 4733 return 0; 4734 } 4735 4736 /** 4737 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 4738 * @phba: pointer to lpfc hba data structure. 4739 * 4740 * This routine is invoked to unset the driver internal resources set up 4741 * specific for supporting the SLI-3 HBA device it attached to. 4742 **/ 4743 static void 4744 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 4745 { 4746 /* Free device driver memory allocated */ 4747 lpfc_mem_free_all(phba); 4748 4749 return; 4750 } 4751 4752 /** 4753 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 4754 * @phba: pointer to lpfc hba data structure. 4755 * 4756 * This routine is invoked to set up the driver internal resources specific to 4757 * support the SLI-4 HBA device it attached to. 4758 * 4759 * Return codes 4760 * 0 - successful 4761 * other values - error 4762 **/ 4763 static int 4764 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 4765 { 4766 struct lpfc_sli *psli; 4767 LPFC_MBOXQ_t *mboxq; 4768 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 4769 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 4770 struct lpfc_mqe *mqe; 4771 int longs, sli_family; 4772 int sges_per_segment; 4773 4774 /* Before proceed, wait for POST done and device ready */ 4775 rc = lpfc_sli4_post_status_check(phba); 4776 if (rc) 4777 return -ENODEV; 4778 4779 /* 4780 * Initialize timers used by driver 4781 */ 4782 4783 /* Heartbeat timer */ 4784 init_timer(&phba->hb_tmofunc); 4785 phba->hb_tmofunc.function = lpfc_hb_timeout; 4786 phba->hb_tmofunc.data = (unsigned long)phba; 4787 init_timer(&phba->rrq_tmr); 4788 phba->rrq_tmr.function = lpfc_rrq_timeout; 4789 phba->rrq_tmr.data = (unsigned long)phba; 4790 4791 psli = &phba->sli; 4792 /* MBOX heartbeat timer */ 4793 init_timer(&psli->mbox_tmo); 4794 psli->mbox_tmo.function = lpfc_mbox_timeout; 4795 psli->mbox_tmo.data = (unsigned long) phba; 4796 /* Fabric block timer */ 4797 init_timer(&phba->fabric_block_timer); 4798 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4799 phba->fabric_block_timer.data = (unsigned long) phba; 4800 /* EA polling mode timer */ 4801 init_timer(&phba->eratt_poll); 4802 phba->eratt_poll.function = lpfc_poll_eratt; 4803 phba->eratt_poll.data = (unsigned long) phba; 4804 /* FCF rediscover timer */ 4805 init_timer(&phba->fcf.redisc_wait); 4806 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4807 phba->fcf.redisc_wait.data = (unsigned long)phba; 4808 4809 /* 4810 * Control structure for handling external multi-buffer mailbox 4811 * command pass-through. 4812 */ 4813 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 4814 sizeof(struct lpfc_mbox_ext_buf_ctx)); 4815 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 4816 4817 /* 4818 * We need to do a READ_CONFIG mailbox command here before 4819 * calling lpfc_get_cfgparam. For VFs this will report the 4820 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 4821 * All of the resources allocated 4822 * for this Port are tied to these values. 4823 */ 4824 /* Get all the module params for configuring this host */ 4825 lpfc_get_cfgparam(phba); 4826 phba->max_vpi = LPFC_MAX_VPI; 4827 4828 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */ 4829 phba->cfg_fcp_io_channel = phba->cfg_fcp_eq_count; 4830 4831 /* This will be set to correct value after the read_config mbox */ 4832 phba->max_vports = 0; 4833 4834 /* Program the default value of vlan_id and fc_map */ 4835 phba->valid_vlan = 0; 4836 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4837 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4838 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4839 4840 /* With BlockGuard we can have multiple SGEs per Data Segemnt */ 4841 sges_per_segment = 1; 4842 if (phba->cfg_enable_bg) 4843 sges_per_segment = 2; 4844 4845 /* 4846 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 4847 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple. 4848 */ 4849 if (!phba->sli.ring) 4850 phba->sli.ring = kzalloc( 4851 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) * 4852 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 4853 if (!phba->sli.ring) 4854 return -ENOMEM; 4855 /* 4856 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4857 * used to create the sg_dma_buf_pool must be dynamically calculated. 4858 * 2 segments are added since the IOCB needs a command and response bde. 4859 * To insure that the scsi sgl does not cross a 4k page boundary only 4860 * sgl sizes of must be a power of 2. 4861 */ 4862 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 4863 (((phba->cfg_sg_seg_cnt * sges_per_segment) + 2) * 4864 sizeof(struct sli4_sge))); 4865 4866 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf); 4867 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4868 switch (sli_family) { 4869 case LPFC_SLI_INTF_FAMILY_BE2: 4870 case LPFC_SLI_INTF_FAMILY_BE3: 4871 /* There is a single hint for BE - 2 pages per BPL. */ 4872 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) == 4873 LPFC_SLI_INTF_SLI_HINT1_1) 4874 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4875 break; 4876 case LPFC_SLI_INTF_FAMILY_LNCR_A0: 4877 case LPFC_SLI_INTF_FAMILY_LNCR_B0: 4878 default: 4879 break; 4880 } 4881 4882 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4883 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4884 dma_buf_size = dma_buf_size << 1) 4885 ; 4886 if (dma_buf_size == max_buf_size) 4887 phba->cfg_sg_seg_cnt = (dma_buf_size - 4888 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4889 (2 * sizeof(struct sli4_sge))) / 4890 sizeof(struct sli4_sge); 4891 phba->cfg_sg_dma_buf_size = dma_buf_size; 4892 4893 /* Initialize buffer queue management fields */ 4894 hbq_count = lpfc_sli_hbq_count(); 4895 for (i = 0; i < hbq_count; ++i) 4896 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4897 INIT_LIST_HEAD(&phba->rb_pend_list); 4898 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4899 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4900 4901 /* 4902 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4903 */ 4904 /* Initialize the Abort scsi buffer list used by driver */ 4905 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4906 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4907 /* This abort list used by worker thread */ 4908 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4909 4910 /* 4911 * Initialize driver internal slow-path work queues 4912 */ 4913 4914 /* Driver internel slow-path CQ Event pool */ 4915 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4916 /* Response IOCB work queue list */ 4917 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4918 /* Asynchronous event CQ Event work queue list */ 4919 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4920 /* Fast-path XRI aborted CQ Event work queue list */ 4921 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4922 /* Slow-path XRI aborted CQ Event work queue list */ 4923 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4924 /* Receive queue CQ Event work queue list */ 4925 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4926 4927 /* Initialize extent block lists. */ 4928 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 4929 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 4930 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 4931 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 4932 4933 /* Initialize the driver internal SLI layer lists. */ 4934 lpfc_sli_setup(phba); 4935 lpfc_sli_queue_setup(phba); 4936 4937 /* Allocate device driver memory */ 4938 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4939 if (rc) 4940 return -ENOMEM; 4941 4942 /* IF Type 2 ports get initialized now. */ 4943 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4944 LPFC_SLI_INTF_IF_TYPE_2) { 4945 rc = lpfc_pci_function_reset(phba); 4946 if (unlikely(rc)) 4947 return -ENODEV; 4948 } 4949 4950 /* Create the bootstrap mailbox command */ 4951 rc = lpfc_create_bootstrap_mbox(phba); 4952 if (unlikely(rc)) 4953 goto out_free_mem; 4954 4955 /* Set up the host's endian order with the device. */ 4956 rc = lpfc_setup_endian_order(phba); 4957 if (unlikely(rc)) 4958 goto out_free_bsmbx; 4959 4960 /* Set up the hba's configuration parameters. */ 4961 rc = lpfc_sli4_read_config(phba); 4962 if (unlikely(rc)) 4963 goto out_free_bsmbx; 4964 4965 /* IF Type 0 ports get initialized now. */ 4966 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4967 LPFC_SLI_INTF_IF_TYPE_0) { 4968 rc = lpfc_pci_function_reset(phba); 4969 if (unlikely(rc)) 4970 goto out_free_bsmbx; 4971 } 4972 4973 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4974 GFP_KERNEL); 4975 if (!mboxq) { 4976 rc = -ENOMEM; 4977 goto out_free_bsmbx; 4978 } 4979 4980 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 4981 lpfc_supported_pages(mboxq); 4982 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4983 if (!rc) { 4984 mqe = &mboxq->u.mqe; 4985 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4986 LPFC_MAX_SUPPORTED_PAGES); 4987 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4988 switch (pn_page[i]) { 4989 case LPFC_SLI4_PARAMETERS: 4990 phba->sli4_hba.pc_sli4_params.supported = 1; 4991 break; 4992 default: 4993 break; 4994 } 4995 } 4996 /* Read the port's SLI4 Parameters capabilities if supported. */ 4997 if (phba->sli4_hba.pc_sli4_params.supported) 4998 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4999 if (rc) { 5000 mempool_free(mboxq, phba->mbox_mem_pool); 5001 rc = -EIO; 5002 goto out_free_bsmbx; 5003 } 5004 } 5005 /* 5006 * Get sli4 parameters that override parameters from Port capabilities. 5007 * If this call fails, it isn't critical unless the SLI4 parameters come 5008 * back in conflict. 5009 */ 5010 rc = lpfc_get_sli4_parameters(phba, mboxq); 5011 if (rc) { 5012 if (phba->sli4_hba.extents_in_use && 5013 phba->sli4_hba.rpi_hdrs_in_use) { 5014 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5015 "2999 Unsupported SLI4 Parameters " 5016 "Extents and RPI headers enabled.\n"); 5017 goto out_free_bsmbx; 5018 } 5019 } 5020 mempool_free(mboxq, phba->mbox_mem_pool); 5021 /* Verify all the SLI4 queues */ 5022 rc = lpfc_sli4_queue_verify(phba); 5023 if (rc) 5024 goto out_free_bsmbx; 5025 5026 /* Create driver internal CQE event pool */ 5027 rc = lpfc_sli4_cq_event_pool_create(phba); 5028 if (rc) 5029 goto out_free_bsmbx; 5030 5031 /* Initialize sgl lists per host */ 5032 lpfc_init_sgl_list(phba); 5033 5034 /* Allocate and initialize active sgl array */ 5035 rc = lpfc_init_active_sgl_array(phba); 5036 if (rc) { 5037 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5038 "1430 Failed to initialize sgl list.\n"); 5039 goto out_destroy_cq_event_pool; 5040 } 5041 rc = lpfc_sli4_init_rpi_hdrs(phba); 5042 if (rc) { 5043 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5044 "1432 Failed to initialize rpi headers.\n"); 5045 goto out_free_active_sgl; 5046 } 5047 5048 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 5049 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 5050 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 5051 GFP_KERNEL); 5052 if (!phba->fcf.fcf_rr_bmask) { 5053 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5054 "2759 Failed allocate memory for FCF round " 5055 "robin failover bmask\n"); 5056 rc = -ENOMEM; 5057 goto out_remove_rpi_hdrs; 5058 } 5059 5060 phba->sli4_hba.fcp_eq_hdl = 5061 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 5062 phba->cfg_fcp_io_channel), GFP_KERNEL); 5063 if (!phba->sli4_hba.fcp_eq_hdl) { 5064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5065 "2572 Failed allocate memory for " 5066 "fast-path per-EQ handle array\n"); 5067 rc = -ENOMEM; 5068 goto out_free_fcf_rr_bmask; 5069 } 5070 5071 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 5072 phba->cfg_fcp_io_channel), GFP_KERNEL); 5073 if (!phba->sli4_hba.msix_entries) { 5074 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5075 "2573 Failed allocate memory for msi-x " 5076 "interrupt vector entries\n"); 5077 rc = -ENOMEM; 5078 goto out_free_fcp_eq_hdl; 5079 } 5080 5081 /* 5082 * Enable sr-iov virtual functions if supported and configured 5083 * through the module parameter. 5084 */ 5085 if (phba->cfg_sriov_nr_virtfn > 0) { 5086 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5087 phba->cfg_sriov_nr_virtfn); 5088 if (rc) { 5089 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5090 "3020 Requested number of SR-IOV " 5091 "virtual functions (%d) is not " 5092 "supported\n", 5093 phba->cfg_sriov_nr_virtfn); 5094 phba->cfg_sriov_nr_virtfn = 0; 5095 } 5096 } 5097 5098 return 0; 5099 5100 out_free_fcp_eq_hdl: 5101 kfree(phba->sli4_hba.fcp_eq_hdl); 5102 out_free_fcf_rr_bmask: 5103 kfree(phba->fcf.fcf_rr_bmask); 5104 out_remove_rpi_hdrs: 5105 lpfc_sli4_remove_rpi_hdrs(phba); 5106 out_free_active_sgl: 5107 lpfc_free_active_sgl(phba); 5108 out_destroy_cq_event_pool: 5109 lpfc_sli4_cq_event_pool_destroy(phba); 5110 out_free_bsmbx: 5111 lpfc_destroy_bootstrap_mbox(phba); 5112 out_free_mem: 5113 lpfc_mem_free(phba); 5114 return rc; 5115 } 5116 5117 /** 5118 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 5119 * @phba: pointer to lpfc hba data structure. 5120 * 5121 * This routine is invoked to unset the driver internal resources set up 5122 * specific for supporting the SLI-4 HBA device it attached to. 5123 **/ 5124 static void 5125 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 5126 { 5127 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 5128 5129 /* Free memory allocated for msi-x interrupt vector entries */ 5130 kfree(phba->sli4_hba.msix_entries); 5131 5132 /* Free memory allocated for fast-path work queue handles */ 5133 kfree(phba->sli4_hba.fcp_eq_hdl); 5134 5135 /* Free the allocated rpi headers. */ 5136 lpfc_sli4_remove_rpi_hdrs(phba); 5137 lpfc_sli4_remove_rpis(phba); 5138 5139 /* Free eligible FCF index bmask */ 5140 kfree(phba->fcf.fcf_rr_bmask); 5141 5142 /* Free the ELS sgl list */ 5143 lpfc_free_active_sgl(phba); 5144 lpfc_free_els_sgl_list(phba); 5145 5146 /* Free the completion queue EQ event pool */ 5147 lpfc_sli4_cq_event_release_all(phba); 5148 lpfc_sli4_cq_event_pool_destroy(phba); 5149 5150 /* Release resource identifiers. */ 5151 lpfc_sli4_dealloc_resource_identifiers(phba); 5152 5153 /* Free the bsmbx region. */ 5154 lpfc_destroy_bootstrap_mbox(phba); 5155 5156 /* Free the SLI Layer memory with SLI4 HBAs */ 5157 lpfc_mem_free_all(phba); 5158 5159 /* Free the current connect table */ 5160 list_for_each_entry_safe(conn_entry, next_conn_entry, 5161 &phba->fcf_conn_rec_list, list) { 5162 list_del_init(&conn_entry->list); 5163 kfree(conn_entry); 5164 } 5165 5166 return; 5167 } 5168 5169 /** 5170 * lpfc_init_api_table_setup - Set up init api function jump table 5171 * @phba: The hba struct for which this call is being executed. 5172 * @dev_grp: The HBA PCI-Device group number. 5173 * 5174 * This routine sets up the device INIT interface API function jump table 5175 * in @phba struct. 5176 * 5177 * Returns: 0 - success, -ENODEV - failure. 5178 **/ 5179 int 5180 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5181 { 5182 phba->lpfc_hba_init_link = lpfc_hba_init_link; 5183 phba->lpfc_hba_down_link = lpfc_hba_down_link; 5184 phba->lpfc_selective_reset = lpfc_selective_reset; 5185 switch (dev_grp) { 5186 case LPFC_PCI_DEV_LP: 5187 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 5188 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 5189 phba->lpfc_stop_port = lpfc_stop_port_s3; 5190 break; 5191 case LPFC_PCI_DEV_OC: 5192 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 5193 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 5194 phba->lpfc_stop_port = lpfc_stop_port_s4; 5195 break; 5196 default: 5197 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5198 "1431 Invalid HBA PCI-device group: 0x%x\n", 5199 dev_grp); 5200 return -ENODEV; 5201 break; 5202 } 5203 return 0; 5204 } 5205 5206 /** 5207 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5208 * @phba: pointer to lpfc hba data structure. 5209 * 5210 * This routine is invoked to set up the driver internal resources before the 5211 * device specific resource setup to support the HBA device it attached to. 5212 * 5213 * Return codes 5214 * 0 - successful 5215 * other values - error 5216 **/ 5217 static int 5218 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5219 { 5220 /* 5221 * Driver resources common to all SLI revisions 5222 */ 5223 atomic_set(&phba->fast_event_count, 0); 5224 spin_lock_init(&phba->hbalock); 5225 5226 /* Initialize ndlp management spinlock */ 5227 spin_lock_init(&phba->ndlp_lock); 5228 5229 INIT_LIST_HEAD(&phba->port_list); 5230 INIT_LIST_HEAD(&phba->work_list); 5231 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5232 5233 /* Initialize the wait queue head for the kernel thread */ 5234 init_waitqueue_head(&phba->work_waitq); 5235 5236 /* Initialize the scsi buffer list used by driver for scsi IO */ 5237 spin_lock_init(&phba->scsi_buf_list_lock); 5238 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 5239 5240 /* Initialize the fabric iocb list */ 5241 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5242 5243 /* Initialize list to save ELS buffers */ 5244 INIT_LIST_HEAD(&phba->elsbuf); 5245 5246 /* Initialize FCF connection rec list */ 5247 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5248 5249 return 0; 5250 } 5251 5252 /** 5253 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 5254 * @phba: pointer to lpfc hba data structure. 5255 * 5256 * This routine is invoked to set up the driver internal resources after the 5257 * device specific resource setup to support the HBA device it attached to. 5258 * 5259 * Return codes 5260 * 0 - successful 5261 * other values - error 5262 **/ 5263 static int 5264 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 5265 { 5266 int error; 5267 5268 /* Startup the kernel thread for this host adapter. */ 5269 phba->worker_thread = kthread_run(lpfc_do_work, phba, 5270 "lpfc_worker_%d", phba->brd_no); 5271 if (IS_ERR(phba->worker_thread)) { 5272 error = PTR_ERR(phba->worker_thread); 5273 return error; 5274 } 5275 5276 return 0; 5277 } 5278 5279 /** 5280 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 5281 * @phba: pointer to lpfc hba data structure. 5282 * 5283 * This routine is invoked to unset the driver internal resources set up after 5284 * the device specific resource setup for supporting the HBA device it 5285 * attached to. 5286 **/ 5287 static void 5288 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 5289 { 5290 /* Stop kernel worker thread */ 5291 kthread_stop(phba->worker_thread); 5292 } 5293 5294 /** 5295 * lpfc_free_iocb_list - Free iocb list. 5296 * @phba: pointer to lpfc hba data structure. 5297 * 5298 * This routine is invoked to free the driver's IOCB list and memory. 5299 **/ 5300 static void 5301 lpfc_free_iocb_list(struct lpfc_hba *phba) 5302 { 5303 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 5304 5305 spin_lock_irq(&phba->hbalock); 5306 list_for_each_entry_safe(iocbq_entry, iocbq_next, 5307 &phba->lpfc_iocb_list, list) { 5308 list_del(&iocbq_entry->list); 5309 kfree(iocbq_entry); 5310 phba->total_iocbq_bufs--; 5311 } 5312 spin_unlock_irq(&phba->hbalock); 5313 5314 return; 5315 } 5316 5317 /** 5318 * lpfc_init_iocb_list - Allocate and initialize iocb list. 5319 * @phba: pointer to lpfc hba data structure. 5320 * 5321 * This routine is invoked to allocate and initizlize the driver's IOCB 5322 * list and set up the IOCB tag array accordingly. 5323 * 5324 * Return codes 5325 * 0 - successful 5326 * other values - error 5327 **/ 5328 static int 5329 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 5330 { 5331 struct lpfc_iocbq *iocbq_entry = NULL; 5332 uint16_t iotag; 5333 int i; 5334 5335 /* Initialize and populate the iocb list per host. */ 5336 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 5337 for (i = 0; i < iocb_count; i++) { 5338 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 5339 if (iocbq_entry == NULL) { 5340 printk(KERN_ERR "%s: only allocated %d iocbs of " 5341 "expected %d count. Unloading driver.\n", 5342 __func__, i, LPFC_IOCB_LIST_CNT); 5343 goto out_free_iocbq; 5344 } 5345 5346 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 5347 if (iotag == 0) { 5348 kfree(iocbq_entry); 5349 printk(KERN_ERR "%s: failed to allocate IOTAG. " 5350 "Unloading driver.\n", __func__); 5351 goto out_free_iocbq; 5352 } 5353 iocbq_entry->sli4_lxritag = NO_XRI; 5354 iocbq_entry->sli4_xritag = NO_XRI; 5355 5356 spin_lock_irq(&phba->hbalock); 5357 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 5358 phba->total_iocbq_bufs++; 5359 spin_unlock_irq(&phba->hbalock); 5360 } 5361 5362 return 0; 5363 5364 out_free_iocbq: 5365 lpfc_free_iocb_list(phba); 5366 5367 return -ENOMEM; 5368 } 5369 5370 /** 5371 * lpfc_free_sgl_list - Free a given sgl list. 5372 * @phba: pointer to lpfc hba data structure. 5373 * @sglq_list: pointer to the head of sgl list. 5374 * 5375 * This routine is invoked to free a give sgl list and memory. 5376 **/ 5377 void 5378 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 5379 { 5380 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 5381 5382 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 5383 list_del(&sglq_entry->list); 5384 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 5385 kfree(sglq_entry); 5386 } 5387 } 5388 5389 /** 5390 * lpfc_free_els_sgl_list - Free els sgl list. 5391 * @phba: pointer to lpfc hba data structure. 5392 * 5393 * This routine is invoked to free the driver's els sgl list and memory. 5394 **/ 5395 static void 5396 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 5397 { 5398 LIST_HEAD(sglq_list); 5399 5400 /* Retrieve all els sgls from driver list */ 5401 spin_lock_irq(&phba->hbalock); 5402 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 5403 spin_unlock_irq(&phba->hbalock); 5404 5405 /* Now free the sgl list */ 5406 lpfc_free_sgl_list(phba, &sglq_list); 5407 } 5408 5409 /** 5410 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 5411 * @phba: pointer to lpfc hba data structure. 5412 * 5413 * This routine is invoked to allocate the driver's active sgl memory. 5414 * This array will hold the sglq_entry's for active IOs. 5415 **/ 5416 static int 5417 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 5418 { 5419 int size; 5420 size = sizeof(struct lpfc_sglq *); 5421 size *= phba->sli4_hba.max_cfg_param.max_xri; 5422 5423 phba->sli4_hba.lpfc_sglq_active_list = 5424 kzalloc(size, GFP_KERNEL); 5425 if (!phba->sli4_hba.lpfc_sglq_active_list) 5426 return -ENOMEM; 5427 return 0; 5428 } 5429 5430 /** 5431 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 5432 * @phba: pointer to lpfc hba data structure. 5433 * 5434 * This routine is invoked to walk through the array of active sglq entries 5435 * and free all of the resources. 5436 * This is just a place holder for now. 5437 **/ 5438 static void 5439 lpfc_free_active_sgl(struct lpfc_hba *phba) 5440 { 5441 kfree(phba->sli4_hba.lpfc_sglq_active_list); 5442 } 5443 5444 /** 5445 * lpfc_init_sgl_list - Allocate and initialize sgl list. 5446 * @phba: pointer to lpfc hba data structure. 5447 * 5448 * This routine is invoked to allocate and initizlize the driver's sgl 5449 * list and set up the sgl xritag tag array accordingly. 5450 * 5451 **/ 5452 static void 5453 lpfc_init_sgl_list(struct lpfc_hba *phba) 5454 { 5455 /* Initialize and populate the sglq list per host/VF. */ 5456 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 5457 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 5458 5459 /* els xri-sgl book keeping */ 5460 phba->sli4_hba.els_xri_cnt = 0; 5461 5462 /* scsi xri-buffer book keeping */ 5463 phba->sli4_hba.scsi_xri_cnt = 0; 5464 } 5465 5466 /** 5467 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 5468 * @phba: pointer to lpfc hba data structure. 5469 * 5470 * This routine is invoked to post rpi header templates to the 5471 * port for those SLI4 ports that do not support extents. This routine 5472 * posts a PAGE_SIZE memory region to the port to hold up to 5473 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 5474 * and should be called only when interrupts are disabled. 5475 * 5476 * Return codes 5477 * 0 - successful 5478 * -ERROR - otherwise. 5479 **/ 5480 int 5481 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 5482 { 5483 int rc = 0; 5484 struct lpfc_rpi_hdr *rpi_hdr; 5485 5486 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 5487 if (!phba->sli4_hba.rpi_hdrs_in_use) 5488 return rc; 5489 if (phba->sli4_hba.extents_in_use) 5490 return -EIO; 5491 5492 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 5493 if (!rpi_hdr) { 5494 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 5495 "0391 Error during rpi post operation\n"); 5496 lpfc_sli4_remove_rpis(phba); 5497 rc = -ENODEV; 5498 } 5499 5500 return rc; 5501 } 5502 5503 /** 5504 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 5505 * @phba: pointer to lpfc hba data structure. 5506 * 5507 * This routine is invoked to allocate a single 4KB memory region to 5508 * support rpis and stores them in the phba. This single region 5509 * provides support for up to 64 rpis. The region is used globally 5510 * by the device. 5511 * 5512 * Returns: 5513 * A valid rpi hdr on success. 5514 * A NULL pointer on any failure. 5515 **/ 5516 struct lpfc_rpi_hdr * 5517 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 5518 { 5519 uint16_t rpi_limit, curr_rpi_range; 5520 struct lpfc_dmabuf *dmabuf; 5521 struct lpfc_rpi_hdr *rpi_hdr; 5522 uint32_t rpi_count; 5523 5524 /* 5525 * If the SLI4 port supports extents, posting the rpi header isn't 5526 * required. Set the expected maximum count and let the actual value 5527 * get set when extents are fully allocated. 5528 */ 5529 if (!phba->sli4_hba.rpi_hdrs_in_use) 5530 return NULL; 5531 if (phba->sli4_hba.extents_in_use) 5532 return NULL; 5533 5534 /* The limit on the logical index is just the max_rpi count. */ 5535 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 5536 phba->sli4_hba.max_cfg_param.max_rpi - 1; 5537 5538 spin_lock_irq(&phba->hbalock); 5539 /* 5540 * Establish the starting RPI in this header block. The starting 5541 * rpi is normalized to a zero base because the physical rpi is 5542 * port based. 5543 */ 5544 curr_rpi_range = phba->sli4_hba.next_rpi; 5545 spin_unlock_irq(&phba->hbalock); 5546 5547 /* 5548 * The port has a limited number of rpis. The increment here 5549 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 5550 * and to allow the full max_rpi range per port. 5551 */ 5552 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 5553 rpi_count = rpi_limit - curr_rpi_range; 5554 else 5555 rpi_count = LPFC_RPI_HDR_COUNT; 5556 5557 if (!rpi_count) 5558 return NULL; 5559 /* 5560 * First allocate the protocol header region for the port. The 5561 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 5562 */ 5563 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5564 if (!dmabuf) 5565 return NULL; 5566 5567 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5568 LPFC_HDR_TEMPLATE_SIZE, 5569 &dmabuf->phys, 5570 GFP_KERNEL); 5571 if (!dmabuf->virt) { 5572 rpi_hdr = NULL; 5573 goto err_free_dmabuf; 5574 } 5575 5576 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 5577 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 5578 rpi_hdr = NULL; 5579 goto err_free_coherent; 5580 } 5581 5582 /* Save the rpi header data for cleanup later. */ 5583 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 5584 if (!rpi_hdr) 5585 goto err_free_coherent; 5586 5587 rpi_hdr->dmabuf = dmabuf; 5588 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 5589 rpi_hdr->page_count = 1; 5590 spin_lock_irq(&phba->hbalock); 5591 5592 /* The rpi_hdr stores the logical index only. */ 5593 rpi_hdr->start_rpi = curr_rpi_range; 5594 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 5595 5596 /* 5597 * The next_rpi stores the next logical module-64 rpi value used 5598 * to post physical rpis in subsequent rpi postings. 5599 */ 5600 phba->sli4_hba.next_rpi += rpi_count; 5601 spin_unlock_irq(&phba->hbalock); 5602 return rpi_hdr; 5603 5604 err_free_coherent: 5605 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 5606 dmabuf->virt, dmabuf->phys); 5607 err_free_dmabuf: 5608 kfree(dmabuf); 5609 return NULL; 5610 } 5611 5612 /** 5613 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 5614 * @phba: pointer to lpfc hba data structure. 5615 * 5616 * This routine is invoked to remove all memory resources allocated 5617 * to support rpis for SLI4 ports not supporting extents. This routine 5618 * presumes the caller has released all rpis consumed by fabric or port 5619 * logins and is prepared to have the header pages removed. 5620 **/ 5621 void 5622 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 5623 { 5624 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 5625 5626 if (!phba->sli4_hba.rpi_hdrs_in_use) 5627 goto exit; 5628 5629 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 5630 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 5631 list_del(&rpi_hdr->list); 5632 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 5633 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 5634 kfree(rpi_hdr->dmabuf); 5635 kfree(rpi_hdr); 5636 } 5637 exit: 5638 /* There are no rpis available to the port now. */ 5639 phba->sli4_hba.next_rpi = 0; 5640 } 5641 5642 /** 5643 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 5644 * @pdev: pointer to pci device data structure. 5645 * 5646 * This routine is invoked to allocate the driver hba data structure for an 5647 * HBA device. If the allocation is successful, the phba reference to the 5648 * PCI device data structure is set. 5649 * 5650 * Return codes 5651 * pointer to @phba - successful 5652 * NULL - error 5653 **/ 5654 static struct lpfc_hba * 5655 lpfc_hba_alloc(struct pci_dev *pdev) 5656 { 5657 struct lpfc_hba *phba; 5658 5659 /* Allocate memory for HBA structure */ 5660 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 5661 if (!phba) { 5662 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 5663 return NULL; 5664 } 5665 5666 /* Set reference to PCI device in HBA structure */ 5667 phba->pcidev = pdev; 5668 5669 /* Assign an unused board number */ 5670 phba->brd_no = lpfc_get_instance(); 5671 if (phba->brd_no < 0) { 5672 kfree(phba); 5673 return NULL; 5674 } 5675 5676 spin_lock_init(&phba->ct_ev_lock); 5677 INIT_LIST_HEAD(&phba->ct_ev_waiters); 5678 5679 return phba; 5680 } 5681 5682 /** 5683 * lpfc_hba_free - Free driver hba data structure with a device. 5684 * @phba: pointer to lpfc hba data structure. 5685 * 5686 * This routine is invoked to free the driver hba data structure with an 5687 * HBA device. 5688 **/ 5689 static void 5690 lpfc_hba_free(struct lpfc_hba *phba) 5691 { 5692 /* Release the driver assigned board number */ 5693 idr_remove(&lpfc_hba_index, phba->brd_no); 5694 5695 /* Free memory allocated with sli rings */ 5696 kfree(phba->sli.ring); 5697 phba->sli.ring = NULL; 5698 5699 kfree(phba); 5700 return; 5701 } 5702 5703 /** 5704 * lpfc_create_shost - Create hba physical port with associated scsi host. 5705 * @phba: pointer to lpfc hba data structure. 5706 * 5707 * This routine is invoked to create HBA physical port and associate a SCSI 5708 * host with it. 5709 * 5710 * Return codes 5711 * 0 - successful 5712 * other values - error 5713 **/ 5714 static int 5715 lpfc_create_shost(struct lpfc_hba *phba) 5716 { 5717 struct lpfc_vport *vport; 5718 struct Scsi_Host *shost; 5719 5720 /* Initialize HBA FC structure */ 5721 phba->fc_edtov = FF_DEF_EDTOV; 5722 phba->fc_ratov = FF_DEF_RATOV; 5723 phba->fc_altov = FF_DEF_ALTOV; 5724 phba->fc_arbtov = FF_DEF_ARBTOV; 5725 5726 atomic_set(&phba->sdev_cnt, 0); 5727 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 5728 if (!vport) 5729 return -ENODEV; 5730 5731 shost = lpfc_shost_from_vport(vport); 5732 phba->pport = vport; 5733 lpfc_debugfs_initialize(vport); 5734 /* Put reference to SCSI host to driver's device private data */ 5735 pci_set_drvdata(phba->pcidev, shost); 5736 5737 return 0; 5738 } 5739 5740 /** 5741 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 5742 * @phba: pointer to lpfc hba data structure. 5743 * 5744 * This routine is invoked to destroy HBA physical port and the associated 5745 * SCSI host. 5746 **/ 5747 static void 5748 lpfc_destroy_shost(struct lpfc_hba *phba) 5749 { 5750 struct lpfc_vport *vport = phba->pport; 5751 5752 /* Destroy physical port that associated with the SCSI host */ 5753 destroy_port(vport); 5754 5755 return; 5756 } 5757 5758 /** 5759 * lpfc_setup_bg - Setup Block guard structures and debug areas. 5760 * @phba: pointer to lpfc hba data structure. 5761 * @shost: the shost to be used to detect Block guard settings. 5762 * 5763 * This routine sets up the local Block guard protocol settings for @shost. 5764 * This routine also allocates memory for debugging bg buffers. 5765 **/ 5766 static void 5767 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 5768 { 5769 uint32_t old_mask; 5770 uint32_t old_guard; 5771 5772 int pagecnt = 10; 5773 if (lpfc_prot_mask && lpfc_prot_guard) { 5774 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5775 "1478 Registering BlockGuard with the " 5776 "SCSI layer\n"); 5777 5778 old_mask = lpfc_prot_mask; 5779 old_guard = lpfc_prot_guard; 5780 5781 /* Only allow supported values */ 5782 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 5783 SHOST_DIX_TYPE0_PROTECTION | 5784 SHOST_DIX_TYPE1_PROTECTION); 5785 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC); 5786 5787 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 5788 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 5789 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 5790 5791 if (lpfc_prot_mask && lpfc_prot_guard) { 5792 if ((old_mask != lpfc_prot_mask) || 5793 (old_guard != lpfc_prot_guard)) 5794 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5795 "1475 Registering BlockGuard with the " 5796 "SCSI layer: mask %d guard %d\n", 5797 lpfc_prot_mask, lpfc_prot_guard); 5798 5799 scsi_host_set_prot(shost, lpfc_prot_mask); 5800 scsi_host_set_guard(shost, lpfc_prot_guard); 5801 } else 5802 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5803 "1479 Not Registering BlockGuard with the SCSI " 5804 "layer, Bad protection parameters: %d %d\n", 5805 old_mask, old_guard); 5806 } 5807 5808 if (!_dump_buf_data) { 5809 while (pagecnt) { 5810 spin_lock_init(&_dump_buf_lock); 5811 _dump_buf_data = 5812 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5813 if (_dump_buf_data) { 5814 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5815 "9043 BLKGRD: allocated %d pages for " 5816 "_dump_buf_data at 0x%p\n", 5817 (1 << pagecnt), _dump_buf_data); 5818 _dump_buf_data_order = pagecnt; 5819 memset(_dump_buf_data, 0, 5820 ((1 << PAGE_SHIFT) << pagecnt)); 5821 break; 5822 } else 5823 --pagecnt; 5824 } 5825 if (!_dump_buf_data_order) 5826 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5827 "9044 BLKGRD: ERROR unable to allocate " 5828 "memory for hexdump\n"); 5829 } else 5830 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5831 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 5832 "\n", _dump_buf_data); 5833 if (!_dump_buf_dif) { 5834 while (pagecnt) { 5835 _dump_buf_dif = 5836 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5837 if (_dump_buf_dif) { 5838 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5839 "9046 BLKGRD: allocated %d pages for " 5840 "_dump_buf_dif at 0x%p\n", 5841 (1 << pagecnt), _dump_buf_dif); 5842 _dump_buf_dif_order = pagecnt; 5843 memset(_dump_buf_dif, 0, 5844 ((1 << PAGE_SHIFT) << pagecnt)); 5845 break; 5846 } else 5847 --pagecnt; 5848 } 5849 if (!_dump_buf_dif_order) 5850 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5851 "9047 BLKGRD: ERROR unable to allocate " 5852 "memory for hexdump\n"); 5853 } else 5854 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5855 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 5856 _dump_buf_dif); 5857 } 5858 5859 /** 5860 * lpfc_post_init_setup - Perform necessary device post initialization setup. 5861 * @phba: pointer to lpfc hba data structure. 5862 * 5863 * This routine is invoked to perform all the necessary post initialization 5864 * setup for the device. 5865 **/ 5866 static void 5867 lpfc_post_init_setup(struct lpfc_hba *phba) 5868 { 5869 struct Scsi_Host *shost; 5870 struct lpfc_adapter_event_header adapter_event; 5871 5872 /* Get the default values for Model Name and Description */ 5873 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5874 5875 /* 5876 * hba setup may have changed the hba_queue_depth so we need to 5877 * adjust the value of can_queue. 5878 */ 5879 shost = pci_get_drvdata(phba->pcidev); 5880 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5881 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5882 lpfc_setup_bg(phba, shost); 5883 5884 lpfc_host_attrib_init(shost); 5885 5886 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5887 spin_lock_irq(shost->host_lock); 5888 lpfc_poll_start_timer(phba); 5889 spin_unlock_irq(shost->host_lock); 5890 } 5891 5892 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5893 "0428 Perform SCSI scan\n"); 5894 /* Send board arrival event to upper layer */ 5895 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5896 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5897 fc_host_post_vendor_event(shost, fc_get_event_number(), 5898 sizeof(adapter_event), 5899 (char *) &adapter_event, 5900 LPFC_NL_VENDOR_ID); 5901 return; 5902 } 5903 5904 /** 5905 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5906 * @phba: pointer to lpfc hba data structure. 5907 * 5908 * This routine is invoked to set up the PCI device memory space for device 5909 * with SLI-3 interface spec. 5910 * 5911 * Return codes 5912 * 0 - successful 5913 * other values - error 5914 **/ 5915 static int 5916 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5917 { 5918 struct pci_dev *pdev; 5919 unsigned long bar0map_len, bar2map_len; 5920 int i, hbq_count; 5921 void *ptr; 5922 int error = -ENODEV; 5923 5924 /* Obtain PCI device reference */ 5925 if (!phba->pcidev) 5926 return error; 5927 else 5928 pdev = phba->pcidev; 5929 5930 /* Set the device DMA mask size */ 5931 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5932 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5933 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5934 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5935 return error; 5936 } 5937 } 5938 5939 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5940 * required by each mapping. 5941 */ 5942 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5943 bar0map_len = pci_resource_len(pdev, 0); 5944 5945 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5946 bar2map_len = pci_resource_len(pdev, 2); 5947 5948 /* Map HBA SLIM to a kernel virtual address. */ 5949 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5950 if (!phba->slim_memmap_p) { 5951 dev_printk(KERN_ERR, &pdev->dev, 5952 "ioremap failed for SLIM memory.\n"); 5953 goto out; 5954 } 5955 5956 /* Map HBA Control Registers to a kernel virtual address. */ 5957 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5958 if (!phba->ctrl_regs_memmap_p) { 5959 dev_printk(KERN_ERR, &pdev->dev, 5960 "ioremap failed for HBA control registers.\n"); 5961 goto out_iounmap_slim; 5962 } 5963 5964 /* Allocate memory for SLI-2 structures */ 5965 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5966 SLI2_SLIM_SIZE, 5967 &phba->slim2p.phys, 5968 GFP_KERNEL); 5969 if (!phba->slim2p.virt) 5970 goto out_iounmap; 5971 5972 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5973 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5974 phba->mbox_ext = (phba->slim2p.virt + 5975 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5976 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5977 phba->IOCBs = (phba->slim2p.virt + 5978 offsetof(struct lpfc_sli2_slim, IOCBs)); 5979 5980 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5981 lpfc_sli_hbq_size(), 5982 &phba->hbqslimp.phys, 5983 GFP_KERNEL); 5984 if (!phba->hbqslimp.virt) 5985 goto out_free_slim; 5986 5987 hbq_count = lpfc_sli_hbq_count(); 5988 ptr = phba->hbqslimp.virt; 5989 for (i = 0; i < hbq_count; ++i) { 5990 phba->hbqs[i].hbq_virt = ptr; 5991 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5992 ptr += (lpfc_hbq_defs[i]->entry_count * 5993 sizeof(struct lpfc_hbq_entry)); 5994 } 5995 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5996 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5997 5998 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5999 6000 INIT_LIST_HEAD(&phba->rb_pend_list); 6001 6002 phba->MBslimaddr = phba->slim_memmap_p; 6003 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 6004 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 6005 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 6006 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 6007 6008 return 0; 6009 6010 out_free_slim: 6011 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6012 phba->slim2p.virt, phba->slim2p.phys); 6013 out_iounmap: 6014 iounmap(phba->ctrl_regs_memmap_p); 6015 out_iounmap_slim: 6016 iounmap(phba->slim_memmap_p); 6017 out: 6018 return error; 6019 } 6020 6021 /** 6022 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 6023 * @phba: pointer to lpfc hba data structure. 6024 * 6025 * This routine is invoked to unset the PCI device memory space for device 6026 * with SLI-3 interface spec. 6027 **/ 6028 static void 6029 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 6030 { 6031 struct pci_dev *pdev; 6032 6033 /* Obtain PCI device reference */ 6034 if (!phba->pcidev) 6035 return; 6036 else 6037 pdev = phba->pcidev; 6038 6039 /* Free coherent DMA memory allocated */ 6040 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 6041 phba->hbqslimp.virt, phba->hbqslimp.phys); 6042 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6043 phba->slim2p.virt, phba->slim2p.phys); 6044 6045 /* I/O memory unmap */ 6046 iounmap(phba->ctrl_regs_memmap_p); 6047 iounmap(phba->slim_memmap_p); 6048 6049 return; 6050 } 6051 6052 /** 6053 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 6054 * @phba: pointer to lpfc hba data structure. 6055 * 6056 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 6057 * done and check status. 6058 * 6059 * Return 0 if successful, otherwise -ENODEV. 6060 **/ 6061 int 6062 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 6063 { 6064 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 6065 struct lpfc_register reg_data; 6066 int i, port_error = 0; 6067 uint32_t if_type; 6068 6069 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 6070 memset(®_data, 0, sizeof(reg_data)); 6071 if (!phba->sli4_hba.PSMPHRregaddr) 6072 return -ENODEV; 6073 6074 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 6075 for (i = 0; i < 3000; i++) { 6076 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 6077 &portsmphr_reg.word0) || 6078 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 6079 /* Port has a fatal POST error, break out */ 6080 port_error = -ENODEV; 6081 break; 6082 } 6083 if (LPFC_POST_STAGE_PORT_READY == 6084 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 6085 break; 6086 msleep(10); 6087 } 6088 6089 /* 6090 * If there was a port error during POST, then don't proceed with 6091 * other register reads as the data may not be valid. Just exit. 6092 */ 6093 if (port_error) { 6094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6095 "1408 Port Failed POST - portsmphr=0x%x, " 6096 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 6097 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 6098 portsmphr_reg.word0, 6099 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 6100 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 6101 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 6102 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 6103 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 6104 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 6105 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 6106 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 6107 } else { 6108 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6109 "2534 Device Info: SLIFamily=0x%x, " 6110 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 6111 "SLIHint_2=0x%x, FT=0x%x\n", 6112 bf_get(lpfc_sli_intf_sli_family, 6113 &phba->sli4_hba.sli_intf), 6114 bf_get(lpfc_sli_intf_slirev, 6115 &phba->sli4_hba.sli_intf), 6116 bf_get(lpfc_sli_intf_if_type, 6117 &phba->sli4_hba.sli_intf), 6118 bf_get(lpfc_sli_intf_sli_hint1, 6119 &phba->sli4_hba.sli_intf), 6120 bf_get(lpfc_sli_intf_sli_hint2, 6121 &phba->sli4_hba.sli_intf), 6122 bf_get(lpfc_sli_intf_func_type, 6123 &phba->sli4_hba.sli_intf)); 6124 /* 6125 * Check for other Port errors during the initialization 6126 * process. Fail the load if the port did not come up 6127 * correctly. 6128 */ 6129 if_type = bf_get(lpfc_sli_intf_if_type, 6130 &phba->sli4_hba.sli_intf); 6131 switch (if_type) { 6132 case LPFC_SLI_INTF_IF_TYPE_0: 6133 phba->sli4_hba.ue_mask_lo = 6134 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 6135 phba->sli4_hba.ue_mask_hi = 6136 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 6137 uerrlo_reg.word0 = 6138 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 6139 uerrhi_reg.word0 = 6140 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 6141 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 6142 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 6143 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6144 "1422 Unrecoverable Error " 6145 "Detected during POST " 6146 "uerr_lo_reg=0x%x, " 6147 "uerr_hi_reg=0x%x, " 6148 "ue_mask_lo_reg=0x%x, " 6149 "ue_mask_hi_reg=0x%x\n", 6150 uerrlo_reg.word0, 6151 uerrhi_reg.word0, 6152 phba->sli4_hba.ue_mask_lo, 6153 phba->sli4_hba.ue_mask_hi); 6154 port_error = -ENODEV; 6155 } 6156 break; 6157 case LPFC_SLI_INTF_IF_TYPE_2: 6158 /* Final checks. The port status should be clean. */ 6159 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 6160 ®_data.word0) || 6161 (bf_get(lpfc_sliport_status_err, ®_data) && 6162 !bf_get(lpfc_sliport_status_rn, ®_data))) { 6163 phba->work_status[0] = 6164 readl(phba->sli4_hba.u.if_type2. 6165 ERR1regaddr); 6166 phba->work_status[1] = 6167 readl(phba->sli4_hba.u.if_type2. 6168 ERR2regaddr); 6169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6170 "2888 Unrecoverable port error " 6171 "following POST: port status reg " 6172 "0x%x, port_smphr reg 0x%x, " 6173 "error 1=0x%x, error 2=0x%x\n", 6174 reg_data.word0, 6175 portsmphr_reg.word0, 6176 phba->work_status[0], 6177 phba->work_status[1]); 6178 port_error = -ENODEV; 6179 } 6180 break; 6181 case LPFC_SLI_INTF_IF_TYPE_1: 6182 default: 6183 break; 6184 } 6185 } 6186 return port_error; 6187 } 6188 6189 /** 6190 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 6191 * @phba: pointer to lpfc hba data structure. 6192 * @if_type: The SLI4 interface type getting configured. 6193 * 6194 * This routine is invoked to set up SLI4 BAR0 PCI config space register 6195 * memory map. 6196 **/ 6197 static void 6198 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 6199 { 6200 switch (if_type) { 6201 case LPFC_SLI_INTF_IF_TYPE_0: 6202 phba->sli4_hba.u.if_type0.UERRLOregaddr = 6203 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 6204 phba->sli4_hba.u.if_type0.UERRHIregaddr = 6205 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 6206 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 6207 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 6208 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 6209 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 6210 phba->sli4_hba.SLIINTFregaddr = 6211 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 6212 break; 6213 case LPFC_SLI_INTF_IF_TYPE_2: 6214 phba->sli4_hba.u.if_type2.ERR1regaddr = 6215 phba->sli4_hba.conf_regs_memmap_p + 6216 LPFC_CTL_PORT_ER1_OFFSET; 6217 phba->sli4_hba.u.if_type2.ERR2regaddr = 6218 phba->sli4_hba.conf_regs_memmap_p + 6219 LPFC_CTL_PORT_ER2_OFFSET; 6220 phba->sli4_hba.u.if_type2.CTRLregaddr = 6221 phba->sli4_hba.conf_regs_memmap_p + 6222 LPFC_CTL_PORT_CTL_OFFSET; 6223 phba->sli4_hba.u.if_type2.STATUSregaddr = 6224 phba->sli4_hba.conf_regs_memmap_p + 6225 LPFC_CTL_PORT_STA_OFFSET; 6226 phba->sli4_hba.SLIINTFregaddr = 6227 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 6228 phba->sli4_hba.PSMPHRregaddr = 6229 phba->sli4_hba.conf_regs_memmap_p + 6230 LPFC_CTL_PORT_SEM_OFFSET; 6231 phba->sli4_hba.RQDBregaddr = 6232 phba->sli4_hba.conf_regs_memmap_p + 6233 LPFC_ULP0_RQ_DOORBELL; 6234 phba->sli4_hba.WQDBregaddr = 6235 phba->sli4_hba.conf_regs_memmap_p + 6236 LPFC_ULP0_WQ_DOORBELL; 6237 phba->sli4_hba.EQCQDBregaddr = 6238 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 6239 phba->sli4_hba.MQDBregaddr = 6240 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 6241 phba->sli4_hba.BMBXregaddr = 6242 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 6243 break; 6244 case LPFC_SLI_INTF_IF_TYPE_1: 6245 default: 6246 dev_printk(KERN_ERR, &phba->pcidev->dev, 6247 "FATAL - unsupported SLI4 interface type - %d\n", 6248 if_type); 6249 break; 6250 } 6251 } 6252 6253 /** 6254 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 6255 * @phba: pointer to lpfc hba data structure. 6256 * 6257 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 6258 * memory map. 6259 **/ 6260 static void 6261 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 6262 { 6263 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6264 LPFC_SLIPORT_IF0_SMPHR; 6265 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6266 LPFC_HST_ISR0; 6267 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6268 LPFC_HST_IMR0; 6269 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6270 LPFC_HST_ISCR0; 6271 } 6272 6273 /** 6274 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 6275 * @phba: pointer to lpfc hba data structure. 6276 * @vf: virtual function number 6277 * 6278 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 6279 * based on the given viftual function number, @vf. 6280 * 6281 * Return 0 if successful, otherwise -ENODEV. 6282 **/ 6283 static int 6284 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 6285 { 6286 if (vf > LPFC_VIR_FUNC_MAX) 6287 return -ENODEV; 6288 6289 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6290 vf * LPFC_VFR_PAGE_SIZE + 6291 LPFC_ULP0_RQ_DOORBELL); 6292 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6293 vf * LPFC_VFR_PAGE_SIZE + 6294 LPFC_ULP0_WQ_DOORBELL); 6295 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6296 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 6297 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6298 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 6299 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6300 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 6301 return 0; 6302 } 6303 6304 /** 6305 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 6306 * @phba: pointer to lpfc hba data structure. 6307 * 6308 * This routine is invoked to create the bootstrap mailbox 6309 * region consistent with the SLI-4 interface spec. This 6310 * routine allocates all memory necessary to communicate 6311 * mailbox commands to the port and sets up all alignment 6312 * needs. No locks are expected to be held when calling 6313 * this routine. 6314 * 6315 * Return codes 6316 * 0 - successful 6317 * -ENOMEM - could not allocated memory. 6318 **/ 6319 static int 6320 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 6321 { 6322 uint32_t bmbx_size; 6323 struct lpfc_dmabuf *dmabuf; 6324 struct dma_address *dma_address; 6325 uint32_t pa_addr; 6326 uint64_t phys_addr; 6327 6328 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6329 if (!dmabuf) 6330 return -ENOMEM; 6331 6332 /* 6333 * The bootstrap mailbox region is comprised of 2 parts 6334 * plus an alignment restriction of 16 bytes. 6335 */ 6336 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 6337 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 6338 bmbx_size, 6339 &dmabuf->phys, 6340 GFP_KERNEL); 6341 if (!dmabuf->virt) { 6342 kfree(dmabuf); 6343 return -ENOMEM; 6344 } 6345 memset(dmabuf->virt, 0, bmbx_size); 6346 6347 /* 6348 * Initialize the bootstrap mailbox pointers now so that the register 6349 * operations are simple later. The mailbox dma address is required 6350 * to be 16-byte aligned. Also align the virtual memory as each 6351 * maibox is copied into the bmbx mailbox region before issuing the 6352 * command to the port. 6353 */ 6354 phba->sli4_hba.bmbx.dmabuf = dmabuf; 6355 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 6356 6357 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 6358 LPFC_ALIGN_16_BYTE); 6359 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 6360 LPFC_ALIGN_16_BYTE); 6361 6362 /* 6363 * Set the high and low physical addresses now. The SLI4 alignment 6364 * requirement is 16 bytes and the mailbox is posted to the port 6365 * as two 30-bit addresses. The other data is a bit marking whether 6366 * the 30-bit address is the high or low address. 6367 * Upcast bmbx aphys to 64bits so shift instruction compiles 6368 * clean on 32 bit machines. 6369 */ 6370 dma_address = &phba->sli4_hba.bmbx.dma_address; 6371 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 6372 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 6373 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 6374 LPFC_BMBX_BIT1_ADDR_HI); 6375 6376 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 6377 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 6378 LPFC_BMBX_BIT1_ADDR_LO); 6379 return 0; 6380 } 6381 6382 /** 6383 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 6384 * @phba: pointer to lpfc hba data structure. 6385 * 6386 * This routine is invoked to teardown the bootstrap mailbox 6387 * region and release all host resources. This routine requires 6388 * the caller to ensure all mailbox commands recovered, no 6389 * additional mailbox comands are sent, and interrupts are disabled 6390 * before calling this routine. 6391 * 6392 **/ 6393 static void 6394 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 6395 { 6396 dma_free_coherent(&phba->pcidev->dev, 6397 phba->sli4_hba.bmbx.bmbx_size, 6398 phba->sli4_hba.bmbx.dmabuf->virt, 6399 phba->sli4_hba.bmbx.dmabuf->phys); 6400 6401 kfree(phba->sli4_hba.bmbx.dmabuf); 6402 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 6403 } 6404 6405 /** 6406 * lpfc_sli4_read_config - Get the config parameters. 6407 * @phba: pointer to lpfc hba data structure. 6408 * 6409 * This routine is invoked to read the configuration parameters from the HBA. 6410 * The configuration parameters are used to set the base and maximum values 6411 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 6412 * allocation for the port. 6413 * 6414 * Return codes 6415 * 0 - successful 6416 * -ENOMEM - No available memory 6417 * -EIO - The mailbox failed to complete successfully. 6418 **/ 6419 int 6420 lpfc_sli4_read_config(struct lpfc_hba *phba) 6421 { 6422 LPFC_MBOXQ_t *pmb; 6423 struct lpfc_mbx_read_config *rd_config; 6424 union lpfc_sli4_cfg_shdr *shdr; 6425 uint32_t shdr_status, shdr_add_status; 6426 struct lpfc_mbx_get_func_cfg *get_func_cfg; 6427 struct lpfc_rsrc_desc_fcfcoe *desc; 6428 char *pdesc_0; 6429 uint32_t desc_count; 6430 int length, i, rc = 0, rc2; 6431 6432 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6433 if (!pmb) { 6434 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6435 "2011 Unable to allocate memory for issuing " 6436 "SLI_CONFIG_SPECIAL mailbox command\n"); 6437 return -ENOMEM; 6438 } 6439 6440 lpfc_read_config(phba, pmb); 6441 6442 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6443 if (rc != MBX_SUCCESS) { 6444 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6445 "2012 Mailbox failed , mbxCmd x%x " 6446 "READ_CONFIG, mbxStatus x%x\n", 6447 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6448 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6449 rc = -EIO; 6450 } else { 6451 rd_config = &pmb->u.mqe.un.rd_config; 6452 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 6453 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 6454 phba->sli4_hba.lnk_info.lnk_tp = 6455 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 6456 phba->sli4_hba.lnk_info.lnk_no = 6457 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 6458 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6459 "3081 lnk_type:%d, lnk_numb:%d\n", 6460 phba->sli4_hba.lnk_info.lnk_tp, 6461 phba->sli4_hba.lnk_info.lnk_no); 6462 } else 6463 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 6464 "3082 Mailbox (x%x) returned ldv:x0\n", 6465 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 6466 phba->sli4_hba.extents_in_use = 6467 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 6468 phba->sli4_hba.max_cfg_param.max_xri = 6469 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 6470 phba->sli4_hba.max_cfg_param.xri_base = 6471 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 6472 phba->sli4_hba.max_cfg_param.max_vpi = 6473 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 6474 phba->sli4_hba.max_cfg_param.vpi_base = 6475 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 6476 phba->sli4_hba.max_cfg_param.max_rpi = 6477 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 6478 phba->sli4_hba.max_cfg_param.rpi_base = 6479 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 6480 phba->sli4_hba.max_cfg_param.max_vfi = 6481 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 6482 phba->sli4_hba.max_cfg_param.vfi_base = 6483 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 6484 phba->sli4_hba.max_cfg_param.max_fcfi = 6485 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 6486 phba->sli4_hba.max_cfg_param.max_eq = 6487 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 6488 phba->sli4_hba.max_cfg_param.max_rq = 6489 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 6490 phba->sli4_hba.max_cfg_param.max_wq = 6491 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 6492 phba->sli4_hba.max_cfg_param.max_cq = 6493 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 6494 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 6495 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 6496 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 6497 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 6498 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 6499 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 6500 phba->max_vports = phba->max_vpi; 6501 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6502 "2003 cfg params Extents? %d " 6503 "XRI(B:%d M:%d), " 6504 "VPI(B:%d M:%d) " 6505 "VFI(B:%d M:%d) " 6506 "RPI(B:%d M:%d) " 6507 "FCFI(Count:%d)\n", 6508 phba->sli4_hba.extents_in_use, 6509 phba->sli4_hba.max_cfg_param.xri_base, 6510 phba->sli4_hba.max_cfg_param.max_xri, 6511 phba->sli4_hba.max_cfg_param.vpi_base, 6512 phba->sli4_hba.max_cfg_param.max_vpi, 6513 phba->sli4_hba.max_cfg_param.vfi_base, 6514 phba->sli4_hba.max_cfg_param.max_vfi, 6515 phba->sli4_hba.max_cfg_param.rpi_base, 6516 phba->sli4_hba.max_cfg_param.max_rpi, 6517 phba->sli4_hba.max_cfg_param.max_fcfi); 6518 } 6519 6520 if (rc) 6521 goto read_cfg_out; 6522 6523 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 6524 if (phba->cfg_hba_queue_depth > 6525 (phba->sli4_hba.max_cfg_param.max_xri - 6526 lpfc_sli4_get_els_iocb_cnt(phba))) 6527 phba->cfg_hba_queue_depth = 6528 phba->sli4_hba.max_cfg_param.max_xri - 6529 lpfc_sli4_get_els_iocb_cnt(phba); 6530 6531 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 6532 LPFC_SLI_INTF_IF_TYPE_2) 6533 goto read_cfg_out; 6534 6535 /* get the pf# and vf# for SLI4 if_type 2 port */ 6536 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 6537 sizeof(struct lpfc_sli4_cfg_mhdr)); 6538 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 6539 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 6540 length, LPFC_SLI4_MBX_EMBED); 6541 6542 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6543 shdr = (union lpfc_sli4_cfg_shdr *) 6544 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 6545 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6546 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6547 if (rc2 || shdr_status || shdr_add_status) { 6548 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6549 "3026 Mailbox failed , mbxCmd x%x " 6550 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 6551 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6552 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6553 goto read_cfg_out; 6554 } 6555 6556 /* search for fc_fcoe resrouce descriptor */ 6557 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 6558 desc_count = get_func_cfg->func_cfg.rsrc_desc_count; 6559 6560 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 6561 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 6562 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 6563 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 6564 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 6565 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 6566 goto read_cfg_out; 6567 6568 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 6569 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 6570 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 6571 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 6572 phba->sli4_hba.iov.pf_number = 6573 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 6574 phba->sli4_hba.iov.vf_number = 6575 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 6576 break; 6577 } 6578 } 6579 6580 if (i < LPFC_RSRC_DESC_MAX_NUM) 6581 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6582 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 6583 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 6584 phba->sli4_hba.iov.vf_number); 6585 else 6586 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6587 "3028 GET_FUNCTION_CONFIG: failed to find " 6588 "Resrouce Descriptor:x%x\n", 6589 LPFC_RSRC_DESC_TYPE_FCFCOE); 6590 6591 read_cfg_out: 6592 mempool_free(pmb, phba->mbox_mem_pool); 6593 return rc; 6594 } 6595 6596 /** 6597 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 6598 * @phba: pointer to lpfc hba data structure. 6599 * 6600 * This routine is invoked to setup the port-side endian order when 6601 * the port if_type is 0. This routine has no function for other 6602 * if_types. 6603 * 6604 * Return codes 6605 * 0 - successful 6606 * -ENOMEM - No available memory 6607 * -EIO - The mailbox failed to complete successfully. 6608 **/ 6609 static int 6610 lpfc_setup_endian_order(struct lpfc_hba *phba) 6611 { 6612 LPFC_MBOXQ_t *mboxq; 6613 uint32_t if_type, rc = 0; 6614 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 6615 HOST_ENDIAN_HIGH_WORD1}; 6616 6617 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 6618 switch (if_type) { 6619 case LPFC_SLI_INTF_IF_TYPE_0: 6620 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6621 GFP_KERNEL); 6622 if (!mboxq) { 6623 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6624 "0492 Unable to allocate memory for " 6625 "issuing SLI_CONFIG_SPECIAL mailbox " 6626 "command\n"); 6627 return -ENOMEM; 6628 } 6629 6630 /* 6631 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 6632 * two words to contain special data values and no other data. 6633 */ 6634 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 6635 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 6636 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6637 if (rc != MBX_SUCCESS) { 6638 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6639 "0493 SLI_CONFIG_SPECIAL mailbox " 6640 "failed with status x%x\n", 6641 rc); 6642 rc = -EIO; 6643 } 6644 mempool_free(mboxq, phba->mbox_mem_pool); 6645 break; 6646 case LPFC_SLI_INTF_IF_TYPE_2: 6647 case LPFC_SLI_INTF_IF_TYPE_1: 6648 default: 6649 break; 6650 } 6651 return rc; 6652 } 6653 6654 /** 6655 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts 6656 * @phba: pointer to lpfc hba data structure. 6657 * 6658 * This routine is invoked to check the user settable queue counts for EQs and 6659 * CQs. after this routine is called the counts will be set to valid values that 6660 * adhere to the constraints of the system's interrupt vectors and the port's 6661 * queue resources. 6662 * 6663 * Return codes 6664 * 0 - successful 6665 * -ENOMEM - No available memory 6666 **/ 6667 static int 6668 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 6669 { 6670 int cfg_fcp_io_channel; 6671 uint32_t cpu; 6672 uint32_t i = 0; 6673 6674 6675 /* 6676 * Sanity check for configured queue parameters against the run-time 6677 * device parameters 6678 */ 6679 6680 /* Sanity check on HBA EQ parameters */ 6681 cfg_fcp_io_channel = phba->cfg_fcp_io_channel; 6682 6683 /* It doesn't make sense to have more io channels then CPUs */ 6684 for_each_online_cpu(cpu) { 6685 i++; 6686 } 6687 if (i < cfg_fcp_io_channel) { 6688 lpfc_printf_log(phba, 6689 KERN_ERR, LOG_INIT, 6690 "3188 Reducing IO channels to match number of " 6691 "CPUs: from %d to %d\n", cfg_fcp_io_channel, i); 6692 cfg_fcp_io_channel = i; 6693 } 6694 6695 if (cfg_fcp_io_channel > 6696 phba->sli4_hba.max_cfg_param.max_eq) { 6697 if (phba->sli4_hba.max_cfg_param.max_eq < 6698 LPFC_FCP_IO_CHAN_MIN) { 6699 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6700 "2574 Not enough EQs (%d) from the " 6701 "pci function for supporting FCP " 6702 "EQs (%d)\n", 6703 phba->sli4_hba.max_cfg_param.max_eq, 6704 phba->cfg_fcp_io_channel); 6705 goto out_error; 6706 } 6707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6708 "2575 Reducing IO channels to match number of " 6709 "available EQs: from %d to %d\n", 6710 cfg_fcp_io_channel, 6711 phba->sli4_hba.max_cfg_param.max_eq); 6712 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq; 6713 } 6714 6715 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */ 6716 6717 /* The actual number of FCP event queues adopted */ 6718 phba->cfg_fcp_eq_count = cfg_fcp_io_channel; 6719 phba->cfg_fcp_wq_count = cfg_fcp_io_channel; 6720 phba->cfg_fcp_io_channel = cfg_fcp_io_channel; 6721 6722 /* Get EQ depth from module parameter, fake the default for now */ 6723 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 6724 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 6725 6726 /* Get CQ depth from module parameter, fake the default for now */ 6727 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 6728 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 6729 6730 return 0; 6731 out_error: 6732 return -ENOMEM; 6733 } 6734 6735 /** 6736 * lpfc_sli4_queue_create - Create all the SLI4 queues 6737 * @phba: pointer to lpfc hba data structure. 6738 * 6739 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 6740 * operation. For each SLI4 queue type, the parameters such as queue entry 6741 * count (queue depth) shall be taken from the module parameter. For now, 6742 * we just use some constant number as place holder. 6743 * 6744 * Return codes 6745 * 0 - successful 6746 * -ENOMEM - No availble memory 6747 * -EIO - The mailbox failed to complete successfully. 6748 **/ 6749 int 6750 lpfc_sli4_queue_create(struct lpfc_hba *phba) 6751 { 6752 struct lpfc_queue *qdesc; 6753 int idx; 6754 6755 /* 6756 * Create HBA Record arrays. 6757 */ 6758 if (!phba->cfg_fcp_io_channel) 6759 return -ERANGE; 6760 6761 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 6762 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 6763 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 6764 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 6765 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 6766 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 6767 6768 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) * 6769 phba->cfg_fcp_io_channel), GFP_KERNEL); 6770 if (!phba->sli4_hba.hba_eq) { 6771 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6772 "2576 Failed allocate memory for " 6773 "fast-path EQ record array\n"); 6774 goto out_error; 6775 } 6776 6777 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 6778 phba->cfg_fcp_io_channel), GFP_KERNEL); 6779 if (!phba->sli4_hba.fcp_cq) { 6780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6781 "2577 Failed allocate memory for fast-path " 6782 "CQ record array\n"); 6783 goto out_error; 6784 } 6785 6786 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 6787 phba->cfg_fcp_io_channel), GFP_KERNEL); 6788 if (!phba->sli4_hba.fcp_wq) { 6789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6790 "2578 Failed allocate memory for fast-path " 6791 "WQ record array\n"); 6792 goto out_error; 6793 } 6794 6795 /* 6796 * Since the first EQ can have multiple CQs associated with it, 6797 * this array is used to quickly see if we have a FCP fast-path 6798 * CQ match. 6799 */ 6800 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) * 6801 phba->cfg_fcp_io_channel), GFP_KERNEL); 6802 if (!phba->sli4_hba.fcp_cq_map) { 6803 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6804 "2545 Failed allocate memory for fast-path " 6805 "CQ map\n"); 6806 goto out_error; 6807 } 6808 6809 /* 6810 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies 6811 * how many EQs to create. 6812 */ 6813 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 6814 6815 /* Create EQs */ 6816 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6817 phba->sli4_hba.eq_ecount); 6818 if (!qdesc) { 6819 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6820 "0497 Failed allocate EQ (%d)\n", idx); 6821 goto out_error; 6822 } 6823 phba->sli4_hba.hba_eq[idx] = qdesc; 6824 6825 /* Create Fast Path FCP CQs */ 6826 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6827 phba->sli4_hba.cq_ecount); 6828 if (!qdesc) { 6829 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6830 "0499 Failed allocate fast-path FCP " 6831 "CQ (%d)\n", idx); 6832 goto out_error; 6833 } 6834 phba->sli4_hba.fcp_cq[idx] = qdesc; 6835 6836 /* Create Fast Path FCP WQs */ 6837 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6838 phba->sli4_hba.wq_ecount); 6839 if (!qdesc) { 6840 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6841 "0503 Failed allocate fast-path FCP " 6842 "WQ (%d)\n", idx); 6843 goto out_error; 6844 } 6845 phba->sli4_hba.fcp_wq[idx] = qdesc; 6846 } 6847 6848 6849 /* 6850 * Create Slow Path Completion Queues (CQs) 6851 */ 6852 6853 /* Create slow-path Mailbox Command Complete Queue */ 6854 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6855 phba->sli4_hba.cq_ecount); 6856 if (!qdesc) { 6857 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6858 "0500 Failed allocate slow-path mailbox CQ\n"); 6859 goto out_error; 6860 } 6861 phba->sli4_hba.mbx_cq = qdesc; 6862 6863 /* Create slow-path ELS Complete Queue */ 6864 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6865 phba->sli4_hba.cq_ecount); 6866 if (!qdesc) { 6867 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6868 "0501 Failed allocate slow-path ELS CQ\n"); 6869 goto out_error; 6870 } 6871 phba->sli4_hba.els_cq = qdesc; 6872 6873 6874 /* 6875 * Create Slow Path Work Queues (WQs) 6876 */ 6877 6878 /* Create Mailbox Command Queue */ 6879 6880 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 6881 phba->sli4_hba.mq_ecount); 6882 if (!qdesc) { 6883 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6884 "0505 Failed allocate slow-path MQ\n"); 6885 goto out_error; 6886 } 6887 phba->sli4_hba.mbx_wq = qdesc; 6888 6889 /* 6890 * Create ELS Work Queues 6891 */ 6892 6893 /* Create slow-path ELS Work Queue */ 6894 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6895 phba->sli4_hba.wq_ecount); 6896 if (!qdesc) { 6897 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6898 "0504 Failed allocate slow-path ELS WQ\n"); 6899 goto out_error; 6900 } 6901 phba->sli4_hba.els_wq = qdesc; 6902 6903 /* 6904 * Create Receive Queue (RQ) 6905 */ 6906 6907 /* Create Receive Queue for header */ 6908 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6909 phba->sli4_hba.rq_ecount); 6910 if (!qdesc) { 6911 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6912 "0506 Failed allocate receive HRQ\n"); 6913 goto out_error; 6914 } 6915 phba->sli4_hba.hdr_rq = qdesc; 6916 6917 /* Create Receive Queue for data */ 6918 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6919 phba->sli4_hba.rq_ecount); 6920 if (!qdesc) { 6921 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6922 "0507 Failed allocate receive DRQ\n"); 6923 goto out_error; 6924 } 6925 phba->sli4_hba.dat_rq = qdesc; 6926 6927 return 0; 6928 6929 out_error: 6930 lpfc_sli4_queue_destroy(phba); 6931 return -ENOMEM; 6932 } 6933 6934 /** 6935 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 6936 * @phba: pointer to lpfc hba data structure. 6937 * 6938 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 6939 * operation. 6940 * 6941 * Return codes 6942 * 0 - successful 6943 * -ENOMEM - No available memory 6944 * -EIO - The mailbox failed to complete successfully. 6945 **/ 6946 void 6947 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 6948 { 6949 int idx; 6950 6951 if (phba->sli4_hba.hba_eq != NULL) { 6952 /* Release HBA event queue */ 6953 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 6954 if (phba->sli4_hba.hba_eq[idx] != NULL) { 6955 lpfc_sli4_queue_free( 6956 phba->sli4_hba.hba_eq[idx]); 6957 phba->sli4_hba.hba_eq[idx] = NULL; 6958 } 6959 } 6960 kfree(phba->sli4_hba.hba_eq); 6961 phba->sli4_hba.hba_eq = NULL; 6962 } 6963 6964 if (phba->sli4_hba.fcp_cq != NULL) { 6965 /* Release FCP completion queue */ 6966 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 6967 if (phba->sli4_hba.fcp_cq[idx] != NULL) { 6968 lpfc_sli4_queue_free( 6969 phba->sli4_hba.fcp_cq[idx]); 6970 phba->sli4_hba.fcp_cq[idx] = NULL; 6971 } 6972 } 6973 kfree(phba->sli4_hba.fcp_cq); 6974 phba->sli4_hba.fcp_cq = NULL; 6975 } 6976 6977 if (phba->sli4_hba.fcp_wq != NULL) { 6978 /* Release FCP work queue */ 6979 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 6980 if (phba->sli4_hba.fcp_wq[idx] != NULL) { 6981 lpfc_sli4_queue_free( 6982 phba->sli4_hba.fcp_wq[idx]); 6983 phba->sli4_hba.fcp_wq[idx] = NULL; 6984 } 6985 } 6986 kfree(phba->sli4_hba.fcp_wq); 6987 phba->sli4_hba.fcp_wq = NULL; 6988 } 6989 6990 if (phba->pci_bar0_memmap_p) { 6991 iounmap(phba->pci_bar0_memmap_p); 6992 phba->pci_bar0_memmap_p = NULL; 6993 } 6994 if (phba->pci_bar2_memmap_p) { 6995 iounmap(phba->pci_bar2_memmap_p); 6996 phba->pci_bar2_memmap_p = NULL; 6997 } 6998 if (phba->pci_bar4_memmap_p) { 6999 iounmap(phba->pci_bar4_memmap_p); 7000 phba->pci_bar4_memmap_p = NULL; 7001 } 7002 7003 /* Release FCP CQ mapping array */ 7004 if (phba->sli4_hba.fcp_cq_map != NULL) { 7005 kfree(phba->sli4_hba.fcp_cq_map); 7006 phba->sli4_hba.fcp_cq_map = NULL; 7007 } 7008 7009 /* Release mailbox command work queue */ 7010 if (phba->sli4_hba.mbx_wq != NULL) { 7011 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 7012 phba->sli4_hba.mbx_wq = NULL; 7013 } 7014 7015 /* Release ELS work queue */ 7016 if (phba->sli4_hba.els_wq != NULL) { 7017 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 7018 phba->sli4_hba.els_wq = NULL; 7019 } 7020 7021 /* Release unsolicited receive queue */ 7022 if (phba->sli4_hba.hdr_rq != NULL) { 7023 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 7024 phba->sli4_hba.hdr_rq = NULL; 7025 } 7026 if (phba->sli4_hba.dat_rq != NULL) { 7027 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 7028 phba->sli4_hba.dat_rq = NULL; 7029 } 7030 7031 /* Release ELS complete queue */ 7032 if (phba->sli4_hba.els_cq != NULL) { 7033 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 7034 phba->sli4_hba.els_cq = NULL; 7035 } 7036 7037 /* Release mailbox command complete queue */ 7038 if (phba->sli4_hba.mbx_cq != NULL) { 7039 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 7040 phba->sli4_hba.mbx_cq = NULL; 7041 } 7042 7043 return; 7044 } 7045 7046 /** 7047 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 7048 * @phba: pointer to lpfc hba data structure. 7049 * 7050 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 7051 * operation. 7052 * 7053 * Return codes 7054 * 0 - successful 7055 * -ENOMEM - No available memory 7056 * -EIO - The mailbox failed to complete successfully. 7057 **/ 7058 int 7059 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 7060 { 7061 struct lpfc_sli *psli = &phba->sli; 7062 struct lpfc_sli_ring *pring; 7063 int rc = -ENOMEM; 7064 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 7065 int fcp_cq_index = 0; 7066 uint32_t shdr_status, shdr_add_status; 7067 union lpfc_sli4_cfg_shdr *shdr; 7068 LPFC_MBOXQ_t *mboxq; 7069 uint32_t length; 7070 7071 /* Check for dual-ULP support */ 7072 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7073 if (!mboxq) { 7074 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7075 "3249 Unable to allocate memory for " 7076 "QUERY_FW_CFG mailbox command\n"); 7077 return -ENOMEM; 7078 } 7079 length = (sizeof(struct lpfc_mbx_query_fw_config) - 7080 sizeof(struct lpfc_sli4_cfg_mhdr)); 7081 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7082 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 7083 length, LPFC_SLI4_MBX_EMBED); 7084 7085 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7086 7087 shdr = (union lpfc_sli4_cfg_shdr *) 7088 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7089 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7090 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7091 if (shdr_status || shdr_add_status || rc) { 7092 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7093 "3250 QUERY_FW_CFG mailbox failed with status " 7094 "x%x add_status x%x, mbx status x%x\n", 7095 shdr_status, shdr_add_status, rc); 7096 if (rc != MBX_TIMEOUT) 7097 mempool_free(mboxq, phba->mbox_mem_pool); 7098 rc = -ENXIO; 7099 goto out_error; 7100 } 7101 7102 phba->sli4_hba.fw_func_mode = 7103 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; 7104 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; 7105 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; 7106 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7107 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " 7108 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, 7109 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); 7110 7111 if (rc != MBX_TIMEOUT) 7112 mempool_free(mboxq, phba->mbox_mem_pool); 7113 7114 /* 7115 * Set up HBA Event Queues (EQs) 7116 */ 7117 7118 /* Set up HBA event queue */ 7119 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) { 7120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7121 "3147 Fast-path EQs not allocated\n"); 7122 rc = -ENOMEM; 7123 goto out_error; 7124 } 7125 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) { 7126 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) { 7127 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7128 "0522 Fast-path EQ (%d) not " 7129 "allocated\n", fcp_eqidx); 7130 rc = -ENOMEM; 7131 goto out_destroy_hba_eq; 7132 } 7133 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx], 7134 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel)); 7135 if (rc) { 7136 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7137 "0523 Failed setup of fast-path EQ " 7138 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 7139 goto out_destroy_hba_eq; 7140 } 7141 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7142 "2584 HBA EQ setup: " 7143 "queue[%d]-id=%d\n", fcp_eqidx, 7144 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id); 7145 } 7146 7147 /* Set up fast-path FCP Response Complete Queue */ 7148 if (!phba->sli4_hba.fcp_cq) { 7149 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7150 "3148 Fast-path FCP CQ array not " 7151 "allocated\n"); 7152 rc = -ENOMEM; 7153 goto out_destroy_hba_eq; 7154 } 7155 7156 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) { 7157 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 7158 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7159 "0526 Fast-path FCP CQ (%d) not " 7160 "allocated\n", fcp_cqidx); 7161 rc = -ENOMEM; 7162 goto out_destroy_fcp_cq; 7163 } 7164 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 7165 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP); 7166 if (rc) { 7167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7168 "0527 Failed setup of fast-path FCP " 7169 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 7170 goto out_destroy_fcp_cq; 7171 } 7172 7173 /* Setup fcp_cq_map for fast lookup */ 7174 phba->sli4_hba.fcp_cq_map[fcp_cqidx] = 7175 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id; 7176 7177 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7178 "2588 FCP CQ setup: cq[%d]-id=%d, " 7179 "parent seq[%d]-id=%d\n", 7180 fcp_cqidx, 7181 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 7182 fcp_cqidx, 7183 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id); 7184 } 7185 7186 /* Set up fast-path FCP Work Queue */ 7187 if (!phba->sli4_hba.fcp_wq) { 7188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7189 "3149 Fast-path FCP WQ array not " 7190 "allocated\n"); 7191 rc = -ENOMEM; 7192 goto out_destroy_fcp_cq; 7193 } 7194 7195 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) { 7196 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 7197 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7198 "0534 Fast-path FCP WQ (%d) not " 7199 "allocated\n", fcp_wqidx); 7200 rc = -ENOMEM; 7201 goto out_destroy_fcp_wq; 7202 } 7203 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 7204 phba->sli4_hba.fcp_cq[fcp_wqidx], 7205 LPFC_FCP); 7206 if (rc) { 7207 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7208 "0535 Failed setup of fast-path FCP " 7209 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 7210 goto out_destroy_fcp_wq; 7211 } 7212 7213 /* Bind this WQ to the next FCP ring */ 7214 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx]; 7215 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx]; 7216 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring; 7217 7218 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7219 "2591 FCP WQ setup: wq[%d]-id=%d, " 7220 "parent cq[%d]-id=%d\n", 7221 fcp_wqidx, 7222 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 7223 fcp_cq_index, 7224 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id); 7225 } 7226 /* 7227 * Set up Complete Queues (CQs) 7228 */ 7229 7230 /* Set up slow-path MBOX Complete Queue as the first CQ */ 7231 if (!phba->sli4_hba.mbx_cq) { 7232 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7233 "0528 Mailbox CQ not allocated\n"); 7234 rc = -ENOMEM; 7235 goto out_destroy_fcp_wq; 7236 } 7237 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, 7238 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX); 7239 if (rc) { 7240 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7241 "0529 Failed setup of slow-path mailbox CQ: " 7242 "rc = 0x%x\n", rc); 7243 goto out_destroy_fcp_wq; 7244 } 7245 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7246 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 7247 phba->sli4_hba.mbx_cq->queue_id, 7248 phba->sli4_hba.hba_eq[0]->queue_id); 7249 7250 /* Set up slow-path ELS Complete Queue */ 7251 if (!phba->sli4_hba.els_cq) { 7252 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7253 "0530 ELS CQ not allocated\n"); 7254 rc = -ENOMEM; 7255 goto out_destroy_mbx_cq; 7256 } 7257 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, 7258 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS); 7259 if (rc) { 7260 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7261 "0531 Failed setup of slow-path ELS CQ: " 7262 "rc = 0x%x\n", rc); 7263 goto out_destroy_mbx_cq; 7264 } 7265 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7266 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 7267 phba->sli4_hba.els_cq->queue_id, 7268 phba->sli4_hba.hba_eq[0]->queue_id); 7269 7270 /* 7271 * Set up all the Work Queues (WQs) 7272 */ 7273 7274 /* Set up Mailbox Command Queue */ 7275 if (!phba->sli4_hba.mbx_wq) { 7276 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7277 "0538 Slow-path MQ not allocated\n"); 7278 rc = -ENOMEM; 7279 goto out_destroy_els_cq; 7280 } 7281 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 7282 phba->sli4_hba.mbx_cq, LPFC_MBOX); 7283 if (rc) { 7284 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7285 "0539 Failed setup of slow-path MQ: " 7286 "rc = 0x%x\n", rc); 7287 goto out_destroy_els_cq; 7288 } 7289 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7290 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 7291 phba->sli4_hba.mbx_wq->queue_id, 7292 phba->sli4_hba.mbx_cq->queue_id); 7293 7294 /* Set up slow-path ELS Work Queue */ 7295 if (!phba->sli4_hba.els_wq) { 7296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7297 "0536 Slow-path ELS WQ not allocated\n"); 7298 rc = -ENOMEM; 7299 goto out_destroy_mbx_wq; 7300 } 7301 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 7302 phba->sli4_hba.els_cq, LPFC_ELS); 7303 if (rc) { 7304 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7305 "0537 Failed setup of slow-path ELS WQ: " 7306 "rc = 0x%x\n", rc); 7307 goto out_destroy_mbx_wq; 7308 } 7309 7310 /* Bind this WQ to the ELS ring */ 7311 pring = &psli->ring[LPFC_ELS_RING]; 7312 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq; 7313 phba->sli4_hba.els_cq->pring = pring; 7314 7315 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7316 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 7317 phba->sli4_hba.els_wq->queue_id, 7318 phba->sli4_hba.els_cq->queue_id); 7319 7320 /* 7321 * Create Receive Queue (RQ) 7322 */ 7323 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 7324 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7325 "0540 Receive Queue not allocated\n"); 7326 rc = -ENOMEM; 7327 goto out_destroy_els_wq; 7328 } 7329 7330 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ); 7331 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ); 7332 7333 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 7334 phba->sli4_hba.els_cq, LPFC_USOL); 7335 if (rc) { 7336 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7337 "0541 Failed setup of Receive Queue: " 7338 "rc = 0x%x\n", rc); 7339 goto out_destroy_fcp_wq; 7340 } 7341 7342 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7343 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 7344 "parent cq-id=%d\n", 7345 phba->sli4_hba.hdr_rq->queue_id, 7346 phba->sli4_hba.dat_rq->queue_id, 7347 phba->sli4_hba.els_cq->queue_id); 7348 return 0; 7349 7350 out_destroy_els_wq: 7351 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7352 out_destroy_mbx_wq: 7353 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7354 out_destroy_els_cq: 7355 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7356 out_destroy_mbx_cq: 7357 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7358 out_destroy_fcp_wq: 7359 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 7360 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 7361 out_destroy_fcp_cq: 7362 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 7363 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 7364 out_destroy_hba_eq: 7365 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 7366 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]); 7367 out_error: 7368 return rc; 7369 } 7370 7371 /** 7372 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 7373 * @phba: pointer to lpfc hba data structure. 7374 * 7375 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 7376 * operation. 7377 * 7378 * Return codes 7379 * 0 - successful 7380 * -ENOMEM - No available memory 7381 * -EIO - The mailbox failed to complete successfully. 7382 **/ 7383 void 7384 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 7385 { 7386 int fcp_qidx; 7387 7388 /* Unset mailbox command work queue */ 7389 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7390 /* Unset ELS work queue */ 7391 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7392 /* Unset unsolicited receive queue */ 7393 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 7394 /* Unset FCP work queue */ 7395 if (phba->sli4_hba.fcp_wq) { 7396 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7397 fcp_qidx++) 7398 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 7399 } 7400 /* Unset mailbox command complete queue */ 7401 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7402 /* Unset ELS complete queue */ 7403 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7404 /* Unset FCP response complete queue */ 7405 if (phba->sli4_hba.fcp_cq) { 7406 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7407 fcp_qidx++) 7408 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 7409 } 7410 /* Unset fast-path event queue */ 7411 if (phba->sli4_hba.hba_eq) { 7412 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7413 fcp_qidx++) 7414 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]); 7415 } 7416 } 7417 7418 /** 7419 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 7420 * @phba: pointer to lpfc hba data structure. 7421 * 7422 * This routine is invoked to allocate and set up a pool of completion queue 7423 * events. The body of the completion queue event is a completion queue entry 7424 * CQE. For now, this pool is used for the interrupt service routine to queue 7425 * the following HBA completion queue events for the worker thread to process: 7426 * - Mailbox asynchronous events 7427 * - Receive queue completion unsolicited events 7428 * Later, this can be used for all the slow-path events. 7429 * 7430 * Return codes 7431 * 0 - successful 7432 * -ENOMEM - No available memory 7433 **/ 7434 static int 7435 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 7436 { 7437 struct lpfc_cq_event *cq_event; 7438 int i; 7439 7440 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 7441 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 7442 if (!cq_event) 7443 goto out_pool_create_fail; 7444 list_add_tail(&cq_event->list, 7445 &phba->sli4_hba.sp_cqe_event_pool); 7446 } 7447 return 0; 7448 7449 out_pool_create_fail: 7450 lpfc_sli4_cq_event_pool_destroy(phba); 7451 return -ENOMEM; 7452 } 7453 7454 /** 7455 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 7456 * @phba: pointer to lpfc hba data structure. 7457 * 7458 * This routine is invoked to free the pool of completion queue events at 7459 * driver unload time. Note that, it is the responsibility of the driver 7460 * cleanup routine to free all the outstanding completion-queue events 7461 * allocated from this pool back into the pool before invoking this routine 7462 * to destroy the pool. 7463 **/ 7464 static void 7465 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 7466 { 7467 struct lpfc_cq_event *cq_event, *next_cq_event; 7468 7469 list_for_each_entry_safe(cq_event, next_cq_event, 7470 &phba->sli4_hba.sp_cqe_event_pool, list) { 7471 list_del(&cq_event->list); 7472 kfree(cq_event); 7473 } 7474 } 7475 7476 /** 7477 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7478 * @phba: pointer to lpfc hba data structure. 7479 * 7480 * This routine is the lock free version of the API invoked to allocate a 7481 * completion-queue event from the free pool. 7482 * 7483 * Return: Pointer to the newly allocated completion-queue event if successful 7484 * NULL otherwise. 7485 **/ 7486 struct lpfc_cq_event * 7487 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7488 { 7489 struct lpfc_cq_event *cq_event = NULL; 7490 7491 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 7492 struct lpfc_cq_event, list); 7493 return cq_event; 7494 } 7495 7496 /** 7497 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7498 * @phba: pointer to lpfc hba data structure. 7499 * 7500 * This routine is the lock version of the API invoked to allocate a 7501 * completion-queue event from the free pool. 7502 * 7503 * Return: Pointer to the newly allocated completion-queue event if successful 7504 * NULL otherwise. 7505 **/ 7506 struct lpfc_cq_event * 7507 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7508 { 7509 struct lpfc_cq_event *cq_event; 7510 unsigned long iflags; 7511 7512 spin_lock_irqsave(&phba->hbalock, iflags); 7513 cq_event = __lpfc_sli4_cq_event_alloc(phba); 7514 spin_unlock_irqrestore(&phba->hbalock, iflags); 7515 return cq_event; 7516 } 7517 7518 /** 7519 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7520 * @phba: pointer to lpfc hba data structure. 7521 * @cq_event: pointer to the completion queue event to be freed. 7522 * 7523 * This routine is the lock free version of the API invoked to release a 7524 * completion-queue event back into the free pool. 7525 **/ 7526 void 7527 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7528 struct lpfc_cq_event *cq_event) 7529 { 7530 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 7531 } 7532 7533 /** 7534 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7535 * @phba: pointer to lpfc hba data structure. 7536 * @cq_event: pointer to the completion queue event to be freed. 7537 * 7538 * This routine is the lock version of the API invoked to release a 7539 * completion-queue event back into the free pool. 7540 **/ 7541 void 7542 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7543 struct lpfc_cq_event *cq_event) 7544 { 7545 unsigned long iflags; 7546 spin_lock_irqsave(&phba->hbalock, iflags); 7547 __lpfc_sli4_cq_event_release(phba, cq_event); 7548 spin_unlock_irqrestore(&phba->hbalock, iflags); 7549 } 7550 7551 /** 7552 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 7553 * @phba: pointer to lpfc hba data structure. 7554 * 7555 * This routine is to free all the pending completion-queue events to the 7556 * back into the free pool for device reset. 7557 **/ 7558 static void 7559 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 7560 { 7561 LIST_HEAD(cqelist); 7562 struct lpfc_cq_event *cqe; 7563 unsigned long iflags; 7564 7565 /* Retrieve all the pending WCQEs from pending WCQE lists */ 7566 spin_lock_irqsave(&phba->hbalock, iflags); 7567 /* Pending FCP XRI abort events */ 7568 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 7569 &cqelist); 7570 /* Pending ELS XRI abort events */ 7571 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 7572 &cqelist); 7573 /* Pending asynnc events */ 7574 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 7575 &cqelist); 7576 spin_unlock_irqrestore(&phba->hbalock, iflags); 7577 7578 while (!list_empty(&cqelist)) { 7579 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 7580 lpfc_sli4_cq_event_release(phba, cqe); 7581 } 7582 } 7583 7584 /** 7585 * lpfc_pci_function_reset - Reset pci function. 7586 * @phba: pointer to lpfc hba data structure. 7587 * 7588 * This routine is invoked to request a PCI function reset. It will destroys 7589 * all resources assigned to the PCI function which originates this request. 7590 * 7591 * Return codes 7592 * 0 - successful 7593 * -ENOMEM - No available memory 7594 * -EIO - The mailbox failed to complete successfully. 7595 **/ 7596 int 7597 lpfc_pci_function_reset(struct lpfc_hba *phba) 7598 { 7599 LPFC_MBOXQ_t *mboxq; 7600 uint32_t rc = 0, if_type; 7601 uint32_t shdr_status, shdr_add_status; 7602 uint32_t rdy_chk, num_resets = 0, reset_again = 0; 7603 union lpfc_sli4_cfg_shdr *shdr; 7604 struct lpfc_register reg_data; 7605 uint16_t devid; 7606 7607 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7608 switch (if_type) { 7609 case LPFC_SLI_INTF_IF_TYPE_0: 7610 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7611 GFP_KERNEL); 7612 if (!mboxq) { 7613 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7614 "0494 Unable to allocate memory for " 7615 "issuing SLI_FUNCTION_RESET mailbox " 7616 "command\n"); 7617 return -ENOMEM; 7618 } 7619 7620 /* Setup PCI function reset mailbox-ioctl command */ 7621 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7622 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 7623 LPFC_SLI4_MBX_EMBED); 7624 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7625 shdr = (union lpfc_sli4_cfg_shdr *) 7626 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7627 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7628 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7629 &shdr->response); 7630 if (rc != MBX_TIMEOUT) 7631 mempool_free(mboxq, phba->mbox_mem_pool); 7632 if (shdr_status || shdr_add_status || rc) { 7633 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7634 "0495 SLI_FUNCTION_RESET mailbox " 7635 "failed with status x%x add_status x%x," 7636 " mbx status x%x\n", 7637 shdr_status, shdr_add_status, rc); 7638 rc = -ENXIO; 7639 } 7640 break; 7641 case LPFC_SLI_INTF_IF_TYPE_2: 7642 for (num_resets = 0; 7643 num_resets < MAX_IF_TYPE_2_RESETS; 7644 num_resets++) { 7645 reg_data.word0 = 0; 7646 bf_set(lpfc_sliport_ctrl_end, ®_data, 7647 LPFC_SLIPORT_LITTLE_ENDIAN); 7648 bf_set(lpfc_sliport_ctrl_ip, ®_data, 7649 LPFC_SLIPORT_INIT_PORT); 7650 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 7651 CTRLregaddr); 7652 /* flush */ 7653 pci_read_config_word(phba->pcidev, 7654 PCI_DEVICE_ID, &devid); 7655 /* 7656 * Poll the Port Status Register and wait for RDY for 7657 * up to 10 seconds. If the port doesn't respond, treat 7658 * it as an error. If the port responds with RN, start 7659 * the loop again. 7660 */ 7661 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { 7662 msleep(10); 7663 if (lpfc_readl(phba->sli4_hba.u.if_type2. 7664 STATUSregaddr, ®_data.word0)) { 7665 rc = -ENODEV; 7666 goto out; 7667 } 7668 if (bf_get(lpfc_sliport_status_rn, ®_data)) 7669 reset_again++; 7670 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 7671 break; 7672 } 7673 7674 /* 7675 * If the port responds to the init request with 7676 * reset needed, delay for a bit and restart the loop. 7677 */ 7678 if (reset_again && (rdy_chk < 1000)) { 7679 msleep(10); 7680 reset_again = 0; 7681 continue; 7682 } 7683 7684 /* Detect any port errors. */ 7685 if ((bf_get(lpfc_sliport_status_err, ®_data)) || 7686 (rdy_chk >= 1000)) { 7687 phba->work_status[0] = readl( 7688 phba->sli4_hba.u.if_type2.ERR1regaddr); 7689 phba->work_status[1] = readl( 7690 phba->sli4_hba.u.if_type2.ERR2regaddr); 7691 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7692 "2890 Port error detected during port " 7693 "reset(%d): wait_tmo:%d ms, " 7694 "port status reg 0x%x, " 7695 "error 1=0x%x, error 2=0x%x\n", 7696 num_resets, rdy_chk*10, 7697 reg_data.word0, 7698 phba->work_status[0], 7699 phba->work_status[1]); 7700 rc = -ENODEV; 7701 } 7702 7703 /* 7704 * Terminate the outer loop provided the Port indicated 7705 * ready within 10 seconds. 7706 */ 7707 if (rdy_chk < 1000) 7708 break; 7709 } 7710 /* delay driver action following IF_TYPE_2 function reset */ 7711 msleep(100); 7712 break; 7713 case LPFC_SLI_INTF_IF_TYPE_1: 7714 default: 7715 break; 7716 } 7717 7718 out: 7719 /* Catch the not-ready port failure after a port reset. */ 7720 if (num_resets >= MAX_IF_TYPE_2_RESETS) 7721 rc = -ENODEV; 7722 7723 return rc; 7724 } 7725 7726 /** 7727 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 7728 * @phba: pointer to lpfc hba data structure. 7729 * 7730 * This routine is invoked to set up the PCI device memory space for device 7731 * with SLI-4 interface spec. 7732 * 7733 * Return codes 7734 * 0 - successful 7735 * other values - error 7736 **/ 7737 static int 7738 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 7739 { 7740 struct pci_dev *pdev; 7741 unsigned long bar0map_len, bar1map_len, bar2map_len; 7742 int error = -ENODEV; 7743 uint32_t if_type; 7744 7745 /* Obtain PCI device reference */ 7746 if (!phba->pcidev) 7747 return error; 7748 else 7749 pdev = phba->pcidev; 7750 7751 /* Set the device DMA mask size */ 7752 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7753 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7754 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7755 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7756 return error; 7757 } 7758 } 7759 7760 /* 7761 * The BARs and register set definitions and offset locations are 7762 * dependent on the if_type. 7763 */ 7764 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 7765 &phba->sli4_hba.sli_intf.word0)) { 7766 return error; 7767 } 7768 7769 /* There is no SLI3 failback for SLI4 devices. */ 7770 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 7771 LPFC_SLI_INTF_VALID) { 7772 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7773 "2894 SLI_INTF reg contents invalid " 7774 "sli_intf reg 0x%x\n", 7775 phba->sli4_hba.sli_intf.word0); 7776 return error; 7777 } 7778 7779 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7780 /* 7781 * Get the bus address of SLI4 device Bar regions and the 7782 * number of bytes required by each mapping. The mapping of the 7783 * particular PCI BARs regions is dependent on the type of 7784 * SLI4 device. 7785 */ 7786 if (pci_resource_start(pdev, 0)) { 7787 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7788 bar0map_len = pci_resource_len(pdev, 0); 7789 7790 /* 7791 * Map SLI4 PCI Config Space Register base to a kernel virtual 7792 * addr 7793 */ 7794 phba->sli4_hba.conf_regs_memmap_p = 7795 ioremap(phba->pci_bar0_map, bar0map_len); 7796 if (!phba->sli4_hba.conf_regs_memmap_p) { 7797 dev_printk(KERN_ERR, &pdev->dev, 7798 "ioremap failed for SLI4 PCI config " 7799 "registers.\n"); 7800 goto out; 7801 } 7802 /* Set up BAR0 PCI config space register memory map */ 7803 lpfc_sli4_bar0_register_memmap(phba, if_type); 7804 } else { 7805 phba->pci_bar0_map = pci_resource_start(pdev, 1); 7806 bar0map_len = pci_resource_len(pdev, 1); 7807 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7808 dev_printk(KERN_ERR, &pdev->dev, 7809 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 7810 goto out; 7811 } 7812 phba->sli4_hba.conf_regs_memmap_p = 7813 ioremap(phba->pci_bar0_map, bar0map_len); 7814 if (!phba->sli4_hba.conf_regs_memmap_p) { 7815 dev_printk(KERN_ERR, &pdev->dev, 7816 "ioremap failed for SLI4 PCI config " 7817 "registers.\n"); 7818 goto out; 7819 } 7820 lpfc_sli4_bar0_register_memmap(phba, if_type); 7821 } 7822 7823 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7824 (pci_resource_start(pdev, 2))) { 7825 /* 7826 * Map SLI4 if type 0 HBA Control Register base to a kernel 7827 * virtual address and setup the registers. 7828 */ 7829 phba->pci_bar1_map = pci_resource_start(pdev, 2); 7830 bar1map_len = pci_resource_len(pdev, 2); 7831 phba->sli4_hba.ctrl_regs_memmap_p = 7832 ioremap(phba->pci_bar1_map, bar1map_len); 7833 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 7834 dev_printk(KERN_ERR, &pdev->dev, 7835 "ioremap failed for SLI4 HBA control registers.\n"); 7836 goto out_iounmap_conf; 7837 } 7838 lpfc_sli4_bar1_register_memmap(phba); 7839 } 7840 7841 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7842 (pci_resource_start(pdev, 4))) { 7843 /* 7844 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 7845 * virtual address and setup the registers. 7846 */ 7847 phba->pci_bar2_map = pci_resource_start(pdev, 4); 7848 bar2map_len = pci_resource_len(pdev, 4); 7849 phba->sli4_hba.drbl_regs_memmap_p = 7850 ioremap(phba->pci_bar2_map, bar2map_len); 7851 if (!phba->sli4_hba.drbl_regs_memmap_p) { 7852 dev_printk(KERN_ERR, &pdev->dev, 7853 "ioremap failed for SLI4 HBA doorbell registers.\n"); 7854 goto out_iounmap_ctrl; 7855 } 7856 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 7857 if (error) 7858 goto out_iounmap_all; 7859 } 7860 7861 return 0; 7862 7863 out_iounmap_all: 7864 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7865 out_iounmap_ctrl: 7866 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7867 out_iounmap_conf: 7868 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7869 out: 7870 return error; 7871 } 7872 7873 /** 7874 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 7875 * @phba: pointer to lpfc hba data structure. 7876 * 7877 * This routine is invoked to unset the PCI device memory space for device 7878 * with SLI-4 interface spec. 7879 **/ 7880 static void 7881 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 7882 { 7883 uint32_t if_type; 7884 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7885 7886 switch (if_type) { 7887 case LPFC_SLI_INTF_IF_TYPE_0: 7888 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7889 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7890 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7891 break; 7892 case LPFC_SLI_INTF_IF_TYPE_2: 7893 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7894 break; 7895 case LPFC_SLI_INTF_IF_TYPE_1: 7896 default: 7897 dev_printk(KERN_ERR, &phba->pcidev->dev, 7898 "FATAL - unsupported SLI4 interface type - %d\n", 7899 if_type); 7900 break; 7901 } 7902 } 7903 7904 /** 7905 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 7906 * @phba: pointer to lpfc hba data structure. 7907 * 7908 * This routine is invoked to enable the MSI-X interrupt vectors to device 7909 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 7910 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 7911 * invoked, enables either all or nothing, depending on the current 7912 * availability of PCI vector resources. The device driver is responsible 7913 * for calling the individual request_irq() to register each MSI-X vector 7914 * with a interrupt handler, which is done in this function. Note that 7915 * later when device is unloading, the driver should always call free_irq() 7916 * on all MSI-X vectors it has done request_irq() on before calling 7917 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 7918 * will be left with MSI-X enabled and leaks its vectors. 7919 * 7920 * Return codes 7921 * 0 - successful 7922 * other values - error 7923 **/ 7924 static int 7925 lpfc_sli_enable_msix(struct lpfc_hba *phba) 7926 { 7927 int rc, i; 7928 LPFC_MBOXQ_t *pmb; 7929 7930 /* Set up MSI-X multi-message vectors */ 7931 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7932 phba->msix_entries[i].entry = i; 7933 7934 /* Configure MSI-X capability structure */ 7935 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 7936 ARRAY_SIZE(phba->msix_entries)); 7937 if (rc) { 7938 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7939 "0420 PCI enable MSI-X failed (%d)\n", rc); 7940 goto msi_fail_out; 7941 } 7942 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7943 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7944 "0477 MSI-X entry[%d]: vector=x%x " 7945 "message=%d\n", i, 7946 phba->msix_entries[i].vector, 7947 phba->msix_entries[i].entry); 7948 /* 7949 * Assign MSI-X vectors to interrupt handlers 7950 */ 7951 7952 /* vector-0 is associated to slow-path handler */ 7953 rc = request_irq(phba->msix_entries[0].vector, 7954 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 7955 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7956 if (rc) { 7957 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7958 "0421 MSI-X slow-path request_irq failed " 7959 "(%d)\n", rc); 7960 goto msi_fail_out; 7961 } 7962 7963 /* vector-1 is associated to fast-path handler */ 7964 rc = request_irq(phba->msix_entries[1].vector, 7965 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 7966 LPFC_FP_DRIVER_HANDLER_NAME, phba); 7967 7968 if (rc) { 7969 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7970 "0429 MSI-X fast-path request_irq failed " 7971 "(%d)\n", rc); 7972 goto irq_fail_out; 7973 } 7974 7975 /* 7976 * Configure HBA MSI-X attention conditions to messages 7977 */ 7978 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7979 7980 if (!pmb) { 7981 rc = -ENOMEM; 7982 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7983 "0474 Unable to allocate memory for issuing " 7984 "MBOX_CONFIG_MSI command\n"); 7985 goto mem_fail_out; 7986 } 7987 rc = lpfc_config_msi(phba, pmb); 7988 if (rc) 7989 goto mbx_fail_out; 7990 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7991 if (rc != MBX_SUCCESS) { 7992 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 7993 "0351 Config MSI mailbox command failed, " 7994 "mbxCmd x%x, mbxStatus x%x\n", 7995 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 7996 goto mbx_fail_out; 7997 } 7998 7999 /* Free memory allocated for mailbox command */ 8000 mempool_free(pmb, phba->mbox_mem_pool); 8001 return rc; 8002 8003 mbx_fail_out: 8004 /* Free memory allocated for mailbox command */ 8005 mempool_free(pmb, phba->mbox_mem_pool); 8006 8007 mem_fail_out: 8008 /* free the irq already requested */ 8009 free_irq(phba->msix_entries[1].vector, phba); 8010 8011 irq_fail_out: 8012 /* free the irq already requested */ 8013 free_irq(phba->msix_entries[0].vector, phba); 8014 8015 msi_fail_out: 8016 /* Unconfigure MSI-X capability structure */ 8017 pci_disable_msix(phba->pcidev); 8018 return rc; 8019 } 8020 8021 /** 8022 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 8023 * @phba: pointer to lpfc hba data structure. 8024 * 8025 * This routine is invoked to release the MSI-X vectors and then disable the 8026 * MSI-X interrupt mode to device with SLI-3 interface spec. 8027 **/ 8028 static void 8029 lpfc_sli_disable_msix(struct lpfc_hba *phba) 8030 { 8031 int i; 8032 8033 /* Free up MSI-X multi-message vectors */ 8034 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 8035 free_irq(phba->msix_entries[i].vector, phba); 8036 /* Disable MSI-X */ 8037 pci_disable_msix(phba->pcidev); 8038 8039 return; 8040 } 8041 8042 /** 8043 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 8044 * @phba: pointer to lpfc hba data structure. 8045 * 8046 * This routine is invoked to enable the MSI interrupt mode to device with 8047 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 8048 * enable the MSI vector. The device driver is responsible for calling the 8049 * request_irq() to register MSI vector with a interrupt the handler, which 8050 * is done in this function. 8051 * 8052 * Return codes 8053 * 0 - successful 8054 * other values - error 8055 */ 8056 static int 8057 lpfc_sli_enable_msi(struct lpfc_hba *phba) 8058 { 8059 int rc; 8060 8061 rc = pci_enable_msi(phba->pcidev); 8062 if (!rc) 8063 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8064 "0462 PCI enable MSI mode success.\n"); 8065 else { 8066 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8067 "0471 PCI enable MSI mode failed (%d)\n", rc); 8068 return rc; 8069 } 8070 8071 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 8072 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8073 if (rc) { 8074 pci_disable_msi(phba->pcidev); 8075 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8076 "0478 MSI request_irq failed (%d)\n", rc); 8077 } 8078 return rc; 8079 } 8080 8081 /** 8082 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 8083 * @phba: pointer to lpfc hba data structure. 8084 * 8085 * This routine is invoked to disable the MSI interrupt mode to device with 8086 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 8087 * done request_irq() on before calling pci_disable_msi(). Failure to do so 8088 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 8089 * its vector. 8090 */ 8091 static void 8092 lpfc_sli_disable_msi(struct lpfc_hba *phba) 8093 { 8094 free_irq(phba->pcidev->irq, phba); 8095 pci_disable_msi(phba->pcidev); 8096 return; 8097 } 8098 8099 /** 8100 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 8101 * @phba: pointer to lpfc hba data structure. 8102 * 8103 * This routine is invoked to enable device interrupt and associate driver's 8104 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 8105 * spec. Depends on the interrupt mode configured to the driver, the driver 8106 * will try to fallback from the configured interrupt mode to an interrupt 8107 * mode which is supported by the platform, kernel, and device in the order 8108 * of: 8109 * MSI-X -> MSI -> IRQ. 8110 * 8111 * Return codes 8112 * 0 - successful 8113 * other values - error 8114 **/ 8115 static uint32_t 8116 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 8117 { 8118 uint32_t intr_mode = LPFC_INTR_ERROR; 8119 int retval; 8120 8121 if (cfg_mode == 2) { 8122 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 8123 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 8124 if (!retval) { 8125 /* Now, try to enable MSI-X interrupt mode */ 8126 retval = lpfc_sli_enable_msix(phba); 8127 if (!retval) { 8128 /* Indicate initialization to MSI-X mode */ 8129 phba->intr_type = MSIX; 8130 intr_mode = 2; 8131 } 8132 } 8133 } 8134 8135 /* Fallback to MSI if MSI-X initialization failed */ 8136 if (cfg_mode >= 1 && phba->intr_type == NONE) { 8137 retval = lpfc_sli_enable_msi(phba); 8138 if (!retval) { 8139 /* Indicate initialization to MSI mode */ 8140 phba->intr_type = MSI; 8141 intr_mode = 1; 8142 } 8143 } 8144 8145 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 8146 if (phba->intr_type == NONE) { 8147 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 8148 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8149 if (!retval) { 8150 /* Indicate initialization to INTx mode */ 8151 phba->intr_type = INTx; 8152 intr_mode = 0; 8153 } 8154 } 8155 return intr_mode; 8156 } 8157 8158 /** 8159 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 8160 * @phba: pointer to lpfc hba data structure. 8161 * 8162 * This routine is invoked to disable device interrupt and disassociate the 8163 * driver's interrupt handler(s) from interrupt vector(s) to device with 8164 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 8165 * release the interrupt vector(s) for the message signaled interrupt. 8166 **/ 8167 static void 8168 lpfc_sli_disable_intr(struct lpfc_hba *phba) 8169 { 8170 /* Disable the currently initialized interrupt mode */ 8171 if (phba->intr_type == MSIX) 8172 lpfc_sli_disable_msix(phba); 8173 else if (phba->intr_type == MSI) 8174 lpfc_sli_disable_msi(phba); 8175 else if (phba->intr_type == INTx) 8176 free_irq(phba->pcidev->irq, phba); 8177 8178 /* Reset interrupt management states */ 8179 phba->intr_type = NONE; 8180 phba->sli.slistat.sli_intr = 0; 8181 8182 return; 8183 } 8184 8185 /** 8186 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 8187 * @phba: pointer to lpfc hba data structure. 8188 * 8189 * This routine is invoked to enable the MSI-X interrupt vectors to device 8190 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 8191 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 8192 * enables either all or nothing, depending on the current availability of 8193 * PCI vector resources. The device driver is responsible for calling the 8194 * individual request_irq() to register each MSI-X vector with a interrupt 8195 * handler, which is done in this function. Note that later when device is 8196 * unloading, the driver should always call free_irq() on all MSI-X vectors 8197 * it has done request_irq() on before calling pci_disable_msix(). Failure 8198 * to do so results in a BUG_ON() and a device will be left with MSI-X 8199 * enabled and leaks its vectors. 8200 * 8201 * Return codes 8202 * 0 - successful 8203 * other values - error 8204 **/ 8205 static int 8206 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 8207 { 8208 int vectors, rc, index; 8209 8210 /* Set up MSI-X multi-message vectors */ 8211 for (index = 0; index < phba->cfg_fcp_io_channel; index++) 8212 phba->sli4_hba.msix_entries[index].entry = index; 8213 8214 /* Configure MSI-X capability structure */ 8215 vectors = phba->cfg_fcp_io_channel; 8216 enable_msix_vectors: 8217 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 8218 vectors); 8219 if (rc > 1) { 8220 vectors = rc; 8221 goto enable_msix_vectors; 8222 } else if (rc) { 8223 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8224 "0484 PCI enable MSI-X failed (%d)\n", rc); 8225 goto msi_fail_out; 8226 } 8227 8228 /* Log MSI-X vector assignment */ 8229 for (index = 0; index < vectors; index++) 8230 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8231 "0489 MSI-X entry[%d]: vector=x%x " 8232 "message=%d\n", index, 8233 phba->sli4_hba.msix_entries[index].vector, 8234 phba->sli4_hba.msix_entries[index].entry); 8235 8236 /* 8237 * Assign MSI-X vectors to interrupt handlers 8238 */ 8239 for (index = 0; index < vectors; index++) { 8240 memset(&phba->sli4_hba.handler_name[index], 0, 16); 8241 sprintf((char *)&phba->sli4_hba.handler_name[index], 8242 LPFC_DRIVER_HANDLER_NAME"%d", index); 8243 8244 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8245 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8246 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1); 8247 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 8248 &lpfc_sli4_hba_intr_handler, IRQF_SHARED, 8249 (char *)&phba->sli4_hba.handler_name[index], 8250 &phba->sli4_hba.fcp_eq_hdl[index]); 8251 if (rc) { 8252 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8253 "0486 MSI-X fast-path (%d) " 8254 "request_irq failed (%d)\n", index, rc); 8255 goto cfg_fail_out; 8256 } 8257 } 8258 8259 if (vectors != phba->cfg_fcp_io_channel) { 8260 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8261 "3238 Reducing IO channels to match number of " 8262 "MSI-X vectors, requested %d got %d\n", 8263 phba->cfg_fcp_io_channel, vectors); 8264 phba->cfg_fcp_io_channel = vectors; 8265 } 8266 return rc; 8267 8268 cfg_fail_out: 8269 /* free the irq already requested */ 8270 for (--index; index >= 0; index--) 8271 free_irq(phba->sli4_hba.msix_entries[index].vector, 8272 &phba->sli4_hba.fcp_eq_hdl[index]); 8273 8274 msi_fail_out: 8275 /* Unconfigure MSI-X capability structure */ 8276 pci_disable_msix(phba->pcidev); 8277 return rc; 8278 } 8279 8280 /** 8281 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 8282 * @phba: pointer to lpfc hba data structure. 8283 * 8284 * This routine is invoked to release the MSI-X vectors and then disable the 8285 * MSI-X interrupt mode to device with SLI-4 interface spec. 8286 **/ 8287 static void 8288 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 8289 { 8290 int index; 8291 8292 /* Free up MSI-X multi-message vectors */ 8293 for (index = 0; index < phba->cfg_fcp_io_channel; index++) 8294 free_irq(phba->sli4_hba.msix_entries[index].vector, 8295 &phba->sli4_hba.fcp_eq_hdl[index]); 8296 8297 /* Disable MSI-X */ 8298 pci_disable_msix(phba->pcidev); 8299 8300 return; 8301 } 8302 8303 /** 8304 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 8305 * @phba: pointer to lpfc hba data structure. 8306 * 8307 * This routine is invoked to enable the MSI interrupt mode to device with 8308 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 8309 * to enable the MSI vector. The device driver is responsible for calling 8310 * the request_irq() to register MSI vector with a interrupt the handler, 8311 * which is done in this function. 8312 * 8313 * Return codes 8314 * 0 - successful 8315 * other values - error 8316 **/ 8317 static int 8318 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 8319 { 8320 int rc, index; 8321 8322 rc = pci_enable_msi(phba->pcidev); 8323 if (!rc) 8324 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8325 "0487 PCI enable MSI mode success.\n"); 8326 else { 8327 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8328 "0488 PCI enable MSI mode failed (%d)\n", rc); 8329 return rc; 8330 } 8331 8332 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8333 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8334 if (rc) { 8335 pci_disable_msi(phba->pcidev); 8336 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8337 "0490 MSI request_irq failed (%d)\n", rc); 8338 return rc; 8339 } 8340 8341 for (index = 0; index < phba->cfg_fcp_io_channel; index++) { 8342 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8343 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8344 } 8345 8346 return 0; 8347 } 8348 8349 /** 8350 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 8351 * @phba: pointer to lpfc hba data structure. 8352 * 8353 * This routine is invoked to disable the MSI interrupt mode to device with 8354 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 8355 * done request_irq() on before calling pci_disable_msi(). Failure to do so 8356 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 8357 * its vector. 8358 **/ 8359 static void 8360 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 8361 { 8362 free_irq(phba->pcidev->irq, phba); 8363 pci_disable_msi(phba->pcidev); 8364 return; 8365 } 8366 8367 /** 8368 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 8369 * @phba: pointer to lpfc hba data structure. 8370 * 8371 * This routine is invoked to enable device interrupt and associate driver's 8372 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 8373 * interface spec. Depends on the interrupt mode configured to the driver, 8374 * the driver will try to fallback from the configured interrupt mode to an 8375 * interrupt mode which is supported by the platform, kernel, and device in 8376 * the order of: 8377 * MSI-X -> MSI -> IRQ. 8378 * 8379 * Return codes 8380 * 0 - successful 8381 * other values - error 8382 **/ 8383 static uint32_t 8384 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 8385 { 8386 uint32_t intr_mode = LPFC_INTR_ERROR; 8387 int retval, index; 8388 8389 if (cfg_mode == 2) { 8390 /* Preparation before conf_msi mbox cmd */ 8391 retval = 0; 8392 if (!retval) { 8393 /* Now, try to enable MSI-X interrupt mode */ 8394 retval = lpfc_sli4_enable_msix(phba); 8395 if (!retval) { 8396 /* Indicate initialization to MSI-X mode */ 8397 phba->intr_type = MSIX; 8398 intr_mode = 2; 8399 } 8400 } 8401 } 8402 8403 /* Fallback to MSI if MSI-X initialization failed */ 8404 if (cfg_mode >= 1 && phba->intr_type == NONE) { 8405 retval = lpfc_sli4_enable_msi(phba); 8406 if (!retval) { 8407 /* Indicate initialization to MSI mode */ 8408 phba->intr_type = MSI; 8409 intr_mode = 1; 8410 } 8411 } 8412 8413 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 8414 if (phba->intr_type == NONE) { 8415 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8416 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8417 if (!retval) { 8418 /* Indicate initialization to INTx mode */ 8419 phba->intr_type = INTx; 8420 intr_mode = 0; 8421 for (index = 0; index < phba->cfg_fcp_io_channel; 8422 index++) { 8423 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8424 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8425 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index]. 8426 fcp_eq_in_use, 1); 8427 } 8428 } 8429 } 8430 return intr_mode; 8431 } 8432 8433 /** 8434 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 8435 * @phba: pointer to lpfc hba data structure. 8436 * 8437 * This routine is invoked to disable device interrupt and disassociate 8438 * the driver's interrupt handler(s) from interrupt vector(s) to device 8439 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 8440 * will release the interrupt vector(s) for the message signaled interrupt. 8441 **/ 8442 static void 8443 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 8444 { 8445 /* Disable the currently initialized interrupt mode */ 8446 if (phba->intr_type == MSIX) 8447 lpfc_sli4_disable_msix(phba); 8448 else if (phba->intr_type == MSI) 8449 lpfc_sli4_disable_msi(phba); 8450 else if (phba->intr_type == INTx) 8451 free_irq(phba->pcidev->irq, phba); 8452 8453 /* Reset interrupt management states */ 8454 phba->intr_type = NONE; 8455 phba->sli.slistat.sli_intr = 0; 8456 8457 return; 8458 } 8459 8460 /** 8461 * lpfc_unset_hba - Unset SLI3 hba device initialization 8462 * @phba: pointer to lpfc hba data structure. 8463 * 8464 * This routine is invoked to unset the HBA device initialization steps to 8465 * a device with SLI-3 interface spec. 8466 **/ 8467 static void 8468 lpfc_unset_hba(struct lpfc_hba *phba) 8469 { 8470 struct lpfc_vport *vport = phba->pport; 8471 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8472 8473 spin_lock_irq(shost->host_lock); 8474 vport->load_flag |= FC_UNLOADING; 8475 spin_unlock_irq(shost->host_lock); 8476 8477 kfree(phba->vpi_bmask); 8478 kfree(phba->vpi_ids); 8479 8480 lpfc_stop_hba_timers(phba); 8481 8482 phba->pport->work_port_events = 0; 8483 8484 lpfc_sli_hba_down(phba); 8485 8486 lpfc_sli_brdrestart(phba); 8487 8488 lpfc_sli_disable_intr(phba); 8489 8490 return; 8491 } 8492 8493 /** 8494 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 8495 * @phba: Pointer to HBA context object. 8496 * 8497 * This function is called in the SLI4 code path to wait for completion 8498 * of device's XRIs exchange busy. It will check the XRI exchange busy 8499 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 8500 * that, it will check the XRI exchange busy on outstanding FCP and ELS 8501 * I/Os every 30 seconds, log error message, and wait forever. Only when 8502 * all XRI exchange busy complete, the driver unload shall proceed with 8503 * invoking the function reset ioctl mailbox command to the CNA and the 8504 * the rest of the driver unload resource release. 8505 **/ 8506 static void 8507 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 8508 { 8509 int wait_time = 0; 8510 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8511 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8512 8513 while (!fcp_xri_cmpl || !els_xri_cmpl) { 8514 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 8515 if (!fcp_xri_cmpl) 8516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8517 "2877 FCP XRI exchange busy " 8518 "wait time: %d seconds.\n", 8519 wait_time/1000); 8520 if (!els_xri_cmpl) 8521 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8522 "2878 ELS XRI exchange busy " 8523 "wait time: %d seconds.\n", 8524 wait_time/1000); 8525 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 8526 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 8527 } else { 8528 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 8529 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 8530 } 8531 fcp_xri_cmpl = 8532 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8533 els_xri_cmpl = 8534 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8535 } 8536 } 8537 8538 /** 8539 * lpfc_sli4_hba_unset - Unset the fcoe hba 8540 * @phba: Pointer to HBA context object. 8541 * 8542 * This function is called in the SLI4 code path to reset the HBA's FCoE 8543 * function. The caller is not required to hold any lock. This routine 8544 * issues PCI function reset mailbox command to reset the FCoE function. 8545 * At the end of the function, it calls lpfc_hba_down_post function to 8546 * free any pending commands. 8547 **/ 8548 static void 8549 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 8550 { 8551 int wait_cnt = 0; 8552 LPFC_MBOXQ_t *mboxq; 8553 struct pci_dev *pdev = phba->pcidev; 8554 8555 lpfc_stop_hba_timers(phba); 8556 phba->sli4_hba.intr_enable = 0; 8557 8558 /* 8559 * Gracefully wait out the potential current outstanding asynchronous 8560 * mailbox command. 8561 */ 8562 8563 /* First, block any pending async mailbox command from posted */ 8564 spin_lock_irq(&phba->hbalock); 8565 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 8566 spin_unlock_irq(&phba->hbalock); 8567 /* Now, trying to wait it out if we can */ 8568 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8569 msleep(10); 8570 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 8571 break; 8572 } 8573 /* Forcefully release the outstanding mailbox command if timed out */ 8574 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8575 spin_lock_irq(&phba->hbalock); 8576 mboxq = phba->sli.mbox_active; 8577 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 8578 __lpfc_mbox_cmpl_put(phba, mboxq); 8579 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 8580 phba->sli.mbox_active = NULL; 8581 spin_unlock_irq(&phba->hbalock); 8582 } 8583 8584 /* Abort all iocbs associated with the hba */ 8585 lpfc_sli_hba_iocb_abort(phba); 8586 8587 /* Wait for completion of device XRI exchange busy */ 8588 lpfc_sli4_xri_exchange_busy_wait(phba); 8589 8590 /* Disable PCI subsystem interrupt */ 8591 lpfc_sli4_disable_intr(phba); 8592 8593 /* Disable SR-IOV if enabled */ 8594 if (phba->cfg_sriov_nr_virtfn) 8595 pci_disable_sriov(pdev); 8596 8597 /* Stop kthread signal shall trigger work_done one more time */ 8598 kthread_stop(phba->worker_thread); 8599 8600 /* Reset SLI4 HBA FCoE function */ 8601 lpfc_pci_function_reset(phba); 8602 lpfc_sli4_queue_destroy(phba); 8603 8604 /* Stop the SLI4 device port */ 8605 phba->pport->work_port_events = 0; 8606 } 8607 8608 /** 8609 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 8610 * @phba: Pointer to HBA context object. 8611 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8612 * 8613 * This function is called in the SLI4 code path to read the port's 8614 * sli4 capabilities. 8615 * 8616 * This function may be be called from any context that can block-wait 8617 * for the completion. The expectation is that this routine is called 8618 * typically from probe_one or from the online routine. 8619 **/ 8620 int 8621 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8622 { 8623 int rc; 8624 struct lpfc_mqe *mqe; 8625 struct lpfc_pc_sli4_params *sli4_params; 8626 uint32_t mbox_tmo; 8627 8628 rc = 0; 8629 mqe = &mboxq->u.mqe; 8630 8631 /* Read the port's SLI4 Parameters port capabilities */ 8632 lpfc_pc_sli4_params(mboxq); 8633 if (!phba->sli4_hba.intr_enable) 8634 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8635 else { 8636 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 8637 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 8638 } 8639 8640 if (unlikely(rc)) 8641 return 1; 8642 8643 sli4_params = &phba->sli4_hba.pc_sli4_params; 8644 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 8645 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 8646 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 8647 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 8648 &mqe->un.sli4_params); 8649 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 8650 &mqe->un.sli4_params); 8651 sli4_params->proto_types = mqe->un.sli4_params.word3; 8652 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 8653 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 8654 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 8655 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 8656 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 8657 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 8658 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 8659 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 8660 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 8661 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 8662 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 8663 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 8664 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 8665 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 8666 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 8667 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 8668 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 8669 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 8670 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 8671 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 8672 8673 /* Make sure that sge_supp_len can be handled by the driver */ 8674 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8675 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8676 8677 return rc; 8678 } 8679 8680 /** 8681 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 8682 * @phba: Pointer to HBA context object. 8683 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8684 * 8685 * This function is called in the SLI4 code path to read the port's 8686 * sli4 capabilities. 8687 * 8688 * This function may be be called from any context that can block-wait 8689 * for the completion. The expectation is that this routine is called 8690 * typically from probe_one or from the online routine. 8691 **/ 8692 int 8693 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8694 { 8695 int rc; 8696 struct lpfc_mqe *mqe = &mboxq->u.mqe; 8697 struct lpfc_pc_sli4_params *sli4_params; 8698 uint32_t mbox_tmo; 8699 int length; 8700 struct lpfc_sli4_parameters *mbx_sli4_parameters; 8701 8702 /* 8703 * By default, the driver assumes the SLI4 port requires RPI 8704 * header postings. The SLI4_PARAM response will correct this 8705 * assumption. 8706 */ 8707 phba->sli4_hba.rpi_hdrs_in_use = 1; 8708 8709 /* Read the port's SLI4 Config Parameters */ 8710 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 8711 sizeof(struct lpfc_sli4_cfg_mhdr)); 8712 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8713 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 8714 length, LPFC_SLI4_MBX_EMBED); 8715 if (!phba->sli4_hba.intr_enable) 8716 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8717 else { 8718 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 8719 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 8720 } 8721 if (unlikely(rc)) 8722 return rc; 8723 sli4_params = &phba->sli4_hba.pc_sli4_params; 8724 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 8725 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 8726 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 8727 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 8728 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 8729 mbx_sli4_parameters); 8730 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 8731 mbx_sli4_parameters); 8732 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 8733 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 8734 else 8735 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 8736 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 8737 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 8738 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 8739 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 8740 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 8741 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 8742 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 8743 mbx_sli4_parameters); 8744 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 8745 mbx_sli4_parameters); 8746 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 8747 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 8748 8749 /* Make sure that sge_supp_len can be handled by the driver */ 8750 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8751 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8752 8753 return 0; 8754 } 8755 8756 /** 8757 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 8758 * @pdev: pointer to PCI device 8759 * @pid: pointer to PCI device identifier 8760 * 8761 * This routine is to be called to attach a device with SLI-3 interface spec 8762 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8763 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8764 * information of the device and driver to see if the driver state that it can 8765 * support this kind of device. If the match is successful, the driver core 8766 * invokes this routine. If this routine determines it can claim the HBA, it 8767 * does all the initialization that it needs to do to handle the HBA properly. 8768 * 8769 * Return code 8770 * 0 - driver can claim the device 8771 * negative value - driver can not claim the device 8772 **/ 8773 static int 8774 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 8775 { 8776 struct lpfc_hba *phba; 8777 struct lpfc_vport *vport = NULL; 8778 struct Scsi_Host *shost = NULL; 8779 int error; 8780 uint32_t cfg_mode, intr_mode; 8781 8782 /* Allocate memory for HBA structure */ 8783 phba = lpfc_hba_alloc(pdev); 8784 if (!phba) 8785 return -ENOMEM; 8786 8787 /* Perform generic PCI device enabling operation */ 8788 error = lpfc_enable_pci_dev(phba); 8789 if (error) 8790 goto out_free_phba; 8791 8792 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 8793 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 8794 if (error) 8795 goto out_disable_pci_dev; 8796 8797 /* Set up SLI-3 specific device PCI memory space */ 8798 error = lpfc_sli_pci_mem_setup(phba); 8799 if (error) { 8800 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8801 "1402 Failed to set up pci memory space.\n"); 8802 goto out_disable_pci_dev; 8803 } 8804 8805 /* Set up phase-1 common device driver resources */ 8806 error = lpfc_setup_driver_resource_phase1(phba); 8807 if (error) { 8808 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8809 "1403 Failed to set up driver resource.\n"); 8810 goto out_unset_pci_mem_s3; 8811 } 8812 8813 /* Set up SLI-3 specific device driver resources */ 8814 error = lpfc_sli_driver_resource_setup(phba); 8815 if (error) { 8816 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8817 "1404 Failed to set up driver resource.\n"); 8818 goto out_unset_pci_mem_s3; 8819 } 8820 8821 /* Initialize and populate the iocb list per host */ 8822 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 8823 if (error) { 8824 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8825 "1405 Failed to initialize iocb list.\n"); 8826 goto out_unset_driver_resource_s3; 8827 } 8828 8829 /* Set up common device driver resources */ 8830 error = lpfc_setup_driver_resource_phase2(phba); 8831 if (error) { 8832 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8833 "1406 Failed to set up driver resource.\n"); 8834 goto out_free_iocb_list; 8835 } 8836 8837 /* Get the default values for Model Name and Description */ 8838 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 8839 8840 /* Create SCSI host to the physical port */ 8841 error = lpfc_create_shost(phba); 8842 if (error) { 8843 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8844 "1407 Failed to create scsi host.\n"); 8845 goto out_unset_driver_resource; 8846 } 8847 8848 /* Configure sysfs attributes */ 8849 vport = phba->pport; 8850 error = lpfc_alloc_sysfs_attr(vport); 8851 if (error) { 8852 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8853 "1476 Failed to allocate sysfs attr\n"); 8854 goto out_destroy_shost; 8855 } 8856 8857 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8858 /* Now, trying to enable interrupt and bring up the device */ 8859 cfg_mode = phba->cfg_use_msi; 8860 while (true) { 8861 /* Put device to a known state before enabling interrupt */ 8862 lpfc_stop_port(phba); 8863 /* Configure and enable interrupt */ 8864 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 8865 if (intr_mode == LPFC_INTR_ERROR) { 8866 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8867 "0431 Failed to enable interrupt.\n"); 8868 error = -ENODEV; 8869 goto out_free_sysfs_attr; 8870 } 8871 /* SLI-3 HBA setup */ 8872 if (lpfc_sli_hba_setup(phba)) { 8873 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8874 "1477 Failed to set up hba\n"); 8875 error = -ENODEV; 8876 goto out_remove_device; 8877 } 8878 8879 /* Wait 50ms for the interrupts of previous mailbox commands */ 8880 msleep(50); 8881 /* Check active interrupts on message signaled interrupts */ 8882 if (intr_mode == 0 || 8883 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 8884 /* Log the current active interrupt mode */ 8885 phba->intr_mode = intr_mode; 8886 lpfc_log_intr_mode(phba, intr_mode); 8887 break; 8888 } else { 8889 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8890 "0447 Configure interrupt mode (%d) " 8891 "failed active interrupt test.\n", 8892 intr_mode); 8893 /* Disable the current interrupt mode */ 8894 lpfc_sli_disable_intr(phba); 8895 /* Try next level of interrupt mode */ 8896 cfg_mode = --intr_mode; 8897 } 8898 } 8899 8900 /* Perform post initialization setup */ 8901 lpfc_post_init_setup(phba); 8902 8903 /* Check if there are static vports to be created. */ 8904 lpfc_create_static_vport(phba); 8905 8906 return 0; 8907 8908 out_remove_device: 8909 lpfc_unset_hba(phba); 8910 out_free_sysfs_attr: 8911 lpfc_free_sysfs_attr(vport); 8912 out_destroy_shost: 8913 lpfc_destroy_shost(phba); 8914 out_unset_driver_resource: 8915 lpfc_unset_driver_resource_phase2(phba); 8916 out_free_iocb_list: 8917 lpfc_free_iocb_list(phba); 8918 out_unset_driver_resource_s3: 8919 lpfc_sli_driver_resource_unset(phba); 8920 out_unset_pci_mem_s3: 8921 lpfc_sli_pci_mem_unset(phba); 8922 out_disable_pci_dev: 8923 lpfc_disable_pci_dev(phba); 8924 if (shost) 8925 scsi_host_put(shost); 8926 out_free_phba: 8927 lpfc_hba_free(phba); 8928 return error; 8929 } 8930 8931 /** 8932 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 8933 * @pdev: pointer to PCI device 8934 * 8935 * This routine is to be called to disattach a device with SLI-3 interface 8936 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8937 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8938 * device to be removed from the PCI subsystem properly. 8939 **/ 8940 static void 8941 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 8942 { 8943 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8944 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8945 struct lpfc_vport **vports; 8946 struct lpfc_hba *phba = vport->phba; 8947 int i; 8948 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 8949 8950 spin_lock_irq(&phba->hbalock); 8951 vport->load_flag |= FC_UNLOADING; 8952 spin_unlock_irq(&phba->hbalock); 8953 8954 lpfc_free_sysfs_attr(vport); 8955 8956 /* Release all the vports against this physical port */ 8957 vports = lpfc_create_vport_work_array(phba); 8958 if (vports != NULL) 8959 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 8960 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 8961 continue; 8962 fc_vport_terminate(vports[i]->fc_vport); 8963 } 8964 lpfc_destroy_vport_work_array(phba, vports); 8965 8966 /* Remove FC host and then SCSI host with the physical port */ 8967 fc_remove_host(shost); 8968 scsi_remove_host(shost); 8969 lpfc_cleanup(vport); 8970 8971 /* 8972 * Bring down the SLI Layer. This step disable all interrupts, 8973 * clears the rings, discards all mailbox commands, and resets 8974 * the HBA. 8975 */ 8976 8977 /* HBA interrupt will be disabled after this call */ 8978 lpfc_sli_hba_down(phba); 8979 /* Stop kthread signal shall trigger work_done one more time */ 8980 kthread_stop(phba->worker_thread); 8981 /* Final cleanup of txcmplq and reset the HBA */ 8982 lpfc_sli_brdrestart(phba); 8983 8984 kfree(phba->vpi_bmask); 8985 kfree(phba->vpi_ids); 8986 8987 lpfc_stop_hba_timers(phba); 8988 spin_lock_irq(&phba->hbalock); 8989 list_del_init(&vport->listentry); 8990 spin_unlock_irq(&phba->hbalock); 8991 8992 lpfc_debugfs_terminate(vport); 8993 8994 /* Disable SR-IOV if enabled */ 8995 if (phba->cfg_sriov_nr_virtfn) 8996 pci_disable_sriov(pdev); 8997 8998 /* Disable interrupt */ 8999 lpfc_sli_disable_intr(phba); 9000 9001 pci_set_drvdata(pdev, NULL); 9002 scsi_host_put(shost); 9003 9004 /* 9005 * Call scsi_free before mem_free since scsi bufs are released to their 9006 * corresponding pools here. 9007 */ 9008 lpfc_scsi_free(phba); 9009 lpfc_mem_free_all(phba); 9010 9011 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 9012 phba->hbqslimp.virt, phba->hbqslimp.phys); 9013 9014 /* Free resources associated with SLI2 interface */ 9015 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 9016 phba->slim2p.virt, phba->slim2p.phys); 9017 9018 /* unmap adapter SLIM and Control Registers */ 9019 iounmap(phba->ctrl_regs_memmap_p); 9020 iounmap(phba->slim_memmap_p); 9021 9022 lpfc_hba_free(phba); 9023 9024 pci_release_selected_regions(pdev, bars); 9025 pci_disable_device(pdev); 9026 } 9027 9028 /** 9029 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 9030 * @pdev: pointer to PCI device 9031 * @msg: power management message 9032 * 9033 * This routine is to be called from the kernel's PCI subsystem to support 9034 * system Power Management (PM) to device with SLI-3 interface spec. When 9035 * PM invokes this method, it quiesces the device by stopping the driver's 9036 * worker thread for the device, turning off device's interrupt and DMA, 9037 * and bring the device offline. Note that as the driver implements the 9038 * minimum PM requirements to a power-aware driver's PM support for the 9039 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 9040 * to the suspend() method call will be treated as SUSPEND and the driver will 9041 * fully reinitialize its device during resume() method call, the driver will 9042 * set device to PCI_D3hot state in PCI config space instead of setting it 9043 * according to the @msg provided by the PM. 9044 * 9045 * Return code 9046 * 0 - driver suspended the device 9047 * Error otherwise 9048 **/ 9049 static int 9050 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 9051 { 9052 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9053 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9054 9055 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9056 "0473 PCI device Power Management suspend.\n"); 9057 9058 /* Bring down the device */ 9059 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 9060 lpfc_offline(phba); 9061 kthread_stop(phba->worker_thread); 9062 9063 /* Disable interrupt from device */ 9064 lpfc_sli_disable_intr(phba); 9065 9066 /* Save device state to PCI config space */ 9067 pci_save_state(pdev); 9068 pci_set_power_state(pdev, PCI_D3hot); 9069 9070 return 0; 9071 } 9072 9073 /** 9074 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 9075 * @pdev: pointer to PCI device 9076 * 9077 * This routine is to be called from the kernel's PCI subsystem to support 9078 * system Power Management (PM) to device with SLI-3 interface spec. When PM 9079 * invokes this method, it restores the device's PCI config space state and 9080 * fully reinitializes the device and brings it online. Note that as the 9081 * driver implements the minimum PM requirements to a power-aware driver's 9082 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 9083 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 9084 * driver will fully reinitialize its device during resume() method call, 9085 * the device will be set to PCI_D0 directly in PCI config space before 9086 * restoring the state. 9087 * 9088 * Return code 9089 * 0 - driver suspended the device 9090 * Error otherwise 9091 **/ 9092 static int 9093 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 9094 { 9095 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9096 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9097 uint32_t intr_mode; 9098 int error; 9099 9100 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9101 "0452 PCI device Power Management resume.\n"); 9102 9103 /* Restore device state from PCI config space */ 9104 pci_set_power_state(pdev, PCI_D0); 9105 pci_restore_state(pdev); 9106 9107 /* 9108 * As the new kernel behavior of pci_restore_state() API call clears 9109 * device saved_state flag, need to save the restored state again. 9110 */ 9111 pci_save_state(pdev); 9112 9113 if (pdev->is_busmaster) 9114 pci_set_master(pdev); 9115 9116 /* Startup the kernel thread for this host adapter. */ 9117 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9118 "lpfc_worker_%d", phba->brd_no); 9119 if (IS_ERR(phba->worker_thread)) { 9120 error = PTR_ERR(phba->worker_thread); 9121 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9122 "0434 PM resume failed to start worker " 9123 "thread: error=x%x.\n", error); 9124 return error; 9125 } 9126 9127 /* Configure and enable interrupt */ 9128 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 9129 if (intr_mode == LPFC_INTR_ERROR) { 9130 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9131 "0430 PM resume Failed to enable interrupt\n"); 9132 return -EIO; 9133 } else 9134 phba->intr_mode = intr_mode; 9135 9136 /* Restart HBA and bring it online */ 9137 lpfc_sli_brdrestart(phba); 9138 lpfc_online(phba); 9139 9140 /* Log the current active interrupt mode */ 9141 lpfc_log_intr_mode(phba, phba->intr_mode); 9142 9143 return 0; 9144 } 9145 9146 /** 9147 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 9148 * @phba: pointer to lpfc hba data structure. 9149 * 9150 * This routine is called to prepare the SLI3 device for PCI slot recover. It 9151 * aborts all the outstanding SCSI I/Os to the pci device. 9152 **/ 9153 static void 9154 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 9155 { 9156 struct lpfc_sli *psli = &phba->sli; 9157 struct lpfc_sli_ring *pring; 9158 9159 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9160 "2723 PCI channel I/O abort preparing for recovery\n"); 9161 9162 /* 9163 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9164 * and let the SCSI mid-layer to retry them to recover. 9165 */ 9166 pring = &psli->ring[psli->fcp_ring]; 9167 lpfc_sli_abort_iocb_ring(phba, pring); 9168 } 9169 9170 /** 9171 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 9172 * @phba: pointer to lpfc hba data structure. 9173 * 9174 * This routine is called to prepare the SLI3 device for PCI slot reset. It 9175 * disables the device interrupt and pci device, and aborts the internal FCP 9176 * pending I/Os. 9177 **/ 9178 static void 9179 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 9180 { 9181 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9182 "2710 PCI channel disable preparing for reset\n"); 9183 9184 /* Block any management I/Os to the device */ 9185 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 9186 9187 /* Block all SCSI devices' I/Os on the host */ 9188 lpfc_scsi_dev_block(phba); 9189 9190 /* stop all timers */ 9191 lpfc_stop_hba_timers(phba); 9192 9193 /* Disable interrupt and pci device */ 9194 lpfc_sli_disable_intr(phba); 9195 pci_disable_device(phba->pcidev); 9196 9197 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9198 lpfc_sli_flush_fcp_rings(phba); 9199 } 9200 9201 /** 9202 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 9203 * @phba: pointer to lpfc hba data structure. 9204 * 9205 * This routine is called to prepare the SLI3 device for PCI slot permanently 9206 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9207 * pending I/Os. 9208 **/ 9209 static void 9210 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9211 { 9212 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9213 "2711 PCI channel permanent disable for failure\n"); 9214 /* Block all SCSI devices' I/Os on the host */ 9215 lpfc_scsi_dev_block(phba); 9216 9217 /* stop all timers */ 9218 lpfc_stop_hba_timers(phba); 9219 9220 /* Clean up all driver's outstanding SCSI I/Os */ 9221 lpfc_sli_flush_fcp_rings(phba); 9222 } 9223 9224 /** 9225 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 9226 * @pdev: pointer to PCI device. 9227 * @state: the current PCI connection state. 9228 * 9229 * This routine is called from the PCI subsystem for I/O error handling to 9230 * device with SLI-3 interface spec. This function is called by the PCI 9231 * subsystem after a PCI bus error affecting this device has been detected. 9232 * When this function is invoked, it will need to stop all the I/Os and 9233 * interrupt(s) to the device. Once that is done, it will return 9234 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 9235 * as desired. 9236 * 9237 * Return codes 9238 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 9239 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9240 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9241 **/ 9242 static pci_ers_result_t 9243 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 9244 { 9245 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9246 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9247 9248 switch (state) { 9249 case pci_channel_io_normal: 9250 /* Non-fatal error, prepare for recovery */ 9251 lpfc_sli_prep_dev_for_recover(phba); 9252 return PCI_ERS_RESULT_CAN_RECOVER; 9253 case pci_channel_io_frozen: 9254 /* Fatal error, prepare for slot reset */ 9255 lpfc_sli_prep_dev_for_reset(phba); 9256 return PCI_ERS_RESULT_NEED_RESET; 9257 case pci_channel_io_perm_failure: 9258 /* Permanent failure, prepare for device down */ 9259 lpfc_sli_prep_dev_for_perm_failure(phba); 9260 return PCI_ERS_RESULT_DISCONNECT; 9261 default: 9262 /* Unknown state, prepare and request slot reset */ 9263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9264 "0472 Unknown PCI error state: x%x\n", state); 9265 lpfc_sli_prep_dev_for_reset(phba); 9266 return PCI_ERS_RESULT_NEED_RESET; 9267 } 9268 } 9269 9270 /** 9271 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 9272 * @pdev: pointer to PCI device. 9273 * 9274 * This routine is called from the PCI subsystem for error handling to 9275 * device with SLI-3 interface spec. This is called after PCI bus has been 9276 * reset to restart the PCI card from scratch, as if from a cold-boot. 9277 * During the PCI subsystem error recovery, after driver returns 9278 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 9279 * recovery and then call this routine before calling the .resume method 9280 * to recover the device. This function will initialize the HBA device, 9281 * enable the interrupt, but it will just put the HBA to offline state 9282 * without passing any I/O traffic. 9283 * 9284 * Return codes 9285 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9286 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9287 */ 9288 static pci_ers_result_t 9289 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 9290 { 9291 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9292 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9293 struct lpfc_sli *psli = &phba->sli; 9294 uint32_t intr_mode; 9295 9296 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9297 if (pci_enable_device_mem(pdev)) { 9298 printk(KERN_ERR "lpfc: Cannot re-enable " 9299 "PCI device after reset.\n"); 9300 return PCI_ERS_RESULT_DISCONNECT; 9301 } 9302 9303 pci_restore_state(pdev); 9304 9305 /* 9306 * As the new kernel behavior of pci_restore_state() API call clears 9307 * device saved_state flag, need to save the restored state again. 9308 */ 9309 pci_save_state(pdev); 9310 9311 if (pdev->is_busmaster) 9312 pci_set_master(pdev); 9313 9314 spin_lock_irq(&phba->hbalock); 9315 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 9316 spin_unlock_irq(&phba->hbalock); 9317 9318 /* Configure and enable interrupt */ 9319 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 9320 if (intr_mode == LPFC_INTR_ERROR) { 9321 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9322 "0427 Cannot re-enable interrupt after " 9323 "slot reset.\n"); 9324 return PCI_ERS_RESULT_DISCONNECT; 9325 } else 9326 phba->intr_mode = intr_mode; 9327 9328 /* Take device offline, it will perform cleanup */ 9329 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 9330 lpfc_offline(phba); 9331 lpfc_sli_brdrestart(phba); 9332 9333 /* Log the current active interrupt mode */ 9334 lpfc_log_intr_mode(phba, phba->intr_mode); 9335 9336 return PCI_ERS_RESULT_RECOVERED; 9337 } 9338 9339 /** 9340 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 9341 * @pdev: pointer to PCI device 9342 * 9343 * This routine is called from the PCI subsystem for error handling to device 9344 * with SLI-3 interface spec. It is called when kernel error recovery tells 9345 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 9346 * error recovery. After this call, traffic can start to flow from this device 9347 * again. 9348 */ 9349 static void 9350 lpfc_io_resume_s3(struct pci_dev *pdev) 9351 { 9352 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9353 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9354 9355 /* Bring device online, it will be no-op for non-fatal error resume */ 9356 lpfc_online(phba); 9357 9358 /* Clean up Advanced Error Reporting (AER) if needed */ 9359 if (phba->hba_flag & HBA_AER_ENABLED) 9360 pci_cleanup_aer_uncorrect_error_status(pdev); 9361 } 9362 9363 /** 9364 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 9365 * @phba: pointer to lpfc hba data structure. 9366 * 9367 * returns the number of ELS/CT IOCBs to reserve 9368 **/ 9369 int 9370 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 9371 { 9372 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 9373 9374 if (phba->sli_rev == LPFC_SLI_REV4) { 9375 if (max_xri <= 100) 9376 return 10; 9377 else if (max_xri <= 256) 9378 return 25; 9379 else if (max_xri <= 512) 9380 return 50; 9381 else if (max_xri <= 1024) 9382 return 100; 9383 else if (max_xri <= 1536) 9384 return 150; 9385 else if (max_xri <= 2048) 9386 return 200; 9387 else 9388 return 250; 9389 } else 9390 return 0; 9391 } 9392 9393 /** 9394 * lpfc_write_firmware - attempt to write a firmware image to the port 9395 * @fw: pointer to firmware image returned from request_firmware. 9396 * @phba: pointer to lpfc hba data structure. 9397 * 9398 **/ 9399 static void 9400 lpfc_write_firmware(const struct firmware *fw, void *context) 9401 { 9402 struct lpfc_hba *phba = (struct lpfc_hba *)context; 9403 char fwrev[FW_REV_STR_SIZE]; 9404 struct lpfc_grp_hdr *image; 9405 struct list_head dma_buffer_list; 9406 int i, rc = 0; 9407 struct lpfc_dmabuf *dmabuf, *next; 9408 uint32_t offset = 0, temp_offset = 0; 9409 9410 /* It can be null in no-wait mode, sanity check */ 9411 if (!fw) { 9412 rc = -ENXIO; 9413 goto out; 9414 } 9415 image = (struct lpfc_grp_hdr *)fw->data; 9416 9417 INIT_LIST_HEAD(&dma_buffer_list); 9418 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) || 9419 (bf_get_be32(lpfc_grp_hdr_file_type, image) != 9420 LPFC_FILE_TYPE_GROUP) || 9421 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) || 9422 (be32_to_cpu(image->size) != fw->size)) { 9423 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9424 "3022 Invalid FW image found. " 9425 "Magic:%x Type:%x ID:%x\n", 9426 be32_to_cpu(image->magic_number), 9427 bf_get_be32(lpfc_grp_hdr_file_type, image), 9428 bf_get_be32(lpfc_grp_hdr_id, image)); 9429 rc = -EINVAL; 9430 goto release_out; 9431 } 9432 lpfc_decode_firmware_rev(phba, fwrev, 1); 9433 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 9434 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9435 "3023 Updating Firmware, Current Version:%s " 9436 "New Version:%s\n", 9437 fwrev, image->revision); 9438 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 9439 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 9440 GFP_KERNEL); 9441 if (!dmabuf) { 9442 rc = -ENOMEM; 9443 goto release_out; 9444 } 9445 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 9446 SLI4_PAGE_SIZE, 9447 &dmabuf->phys, 9448 GFP_KERNEL); 9449 if (!dmabuf->virt) { 9450 kfree(dmabuf); 9451 rc = -ENOMEM; 9452 goto release_out; 9453 } 9454 list_add_tail(&dmabuf->list, &dma_buffer_list); 9455 } 9456 while (offset < fw->size) { 9457 temp_offset = offset; 9458 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 9459 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 9460 memcpy(dmabuf->virt, 9461 fw->data + temp_offset, 9462 fw->size - temp_offset); 9463 temp_offset = fw->size; 9464 break; 9465 } 9466 memcpy(dmabuf->virt, fw->data + temp_offset, 9467 SLI4_PAGE_SIZE); 9468 temp_offset += SLI4_PAGE_SIZE; 9469 } 9470 rc = lpfc_wr_object(phba, &dma_buffer_list, 9471 (fw->size - offset), &offset); 9472 if (rc) 9473 goto release_out; 9474 } 9475 rc = offset; 9476 } 9477 9478 release_out: 9479 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 9480 list_del(&dmabuf->list); 9481 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 9482 dmabuf->virt, dmabuf->phys); 9483 kfree(dmabuf); 9484 } 9485 release_firmware(fw); 9486 out: 9487 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9488 "3024 Firmware update done: %d.\n", rc); 9489 return; 9490 } 9491 9492 /** 9493 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 9494 * @phba: pointer to lpfc hba data structure. 9495 * 9496 * This routine is called to perform Linux generic firmware upgrade on device 9497 * that supports such feature. 9498 **/ 9499 int 9500 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 9501 { 9502 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 9503 int ret; 9504 const struct firmware *fw; 9505 9506 /* Only supported on SLI4 interface type 2 for now */ 9507 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 9508 LPFC_SLI_INTF_IF_TYPE_2) 9509 return -EPERM; 9510 9511 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 9512 9513 if (fw_upgrade == INT_FW_UPGRADE) { 9514 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 9515 file_name, &phba->pcidev->dev, 9516 GFP_KERNEL, (void *)phba, 9517 lpfc_write_firmware); 9518 } else if (fw_upgrade == RUN_FW_UPGRADE) { 9519 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 9520 if (!ret) 9521 lpfc_write_firmware(fw, (void *)phba); 9522 } else { 9523 ret = -EINVAL; 9524 } 9525 9526 return ret; 9527 } 9528 9529 /** 9530 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 9531 * @pdev: pointer to PCI device 9532 * @pid: pointer to PCI device identifier 9533 * 9534 * This routine is called from the kernel's PCI subsystem to device with 9535 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9536 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 9537 * information of the device and driver to see if the driver state that it 9538 * can support this kind of device. If the match is successful, the driver 9539 * core invokes this routine. If this routine determines it can claim the HBA, 9540 * it does all the initialization that it needs to do to handle the HBA 9541 * properly. 9542 * 9543 * Return code 9544 * 0 - driver can claim the device 9545 * negative value - driver can not claim the device 9546 **/ 9547 static int 9548 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 9549 { 9550 struct lpfc_hba *phba; 9551 struct lpfc_vport *vport = NULL; 9552 struct Scsi_Host *shost = NULL; 9553 int error, ret; 9554 uint32_t cfg_mode, intr_mode; 9555 int adjusted_fcp_io_channel; 9556 9557 /* Allocate memory for HBA structure */ 9558 phba = lpfc_hba_alloc(pdev); 9559 if (!phba) 9560 return -ENOMEM; 9561 9562 /* Perform generic PCI device enabling operation */ 9563 error = lpfc_enable_pci_dev(phba); 9564 if (error) 9565 goto out_free_phba; 9566 9567 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 9568 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 9569 if (error) 9570 goto out_disable_pci_dev; 9571 9572 /* Set up SLI-4 specific device PCI memory space */ 9573 error = lpfc_sli4_pci_mem_setup(phba); 9574 if (error) { 9575 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9576 "1410 Failed to set up pci memory space.\n"); 9577 goto out_disable_pci_dev; 9578 } 9579 9580 /* Set up phase-1 common device driver resources */ 9581 error = lpfc_setup_driver_resource_phase1(phba); 9582 if (error) { 9583 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9584 "1411 Failed to set up driver resource.\n"); 9585 goto out_unset_pci_mem_s4; 9586 } 9587 9588 /* Set up SLI-4 Specific device driver resources */ 9589 error = lpfc_sli4_driver_resource_setup(phba); 9590 if (error) { 9591 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9592 "1412 Failed to set up driver resource.\n"); 9593 goto out_unset_pci_mem_s4; 9594 } 9595 9596 /* Initialize and populate the iocb list per host */ 9597 9598 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9599 "2821 initialize iocb list %d.\n", 9600 phba->cfg_iocb_cnt*1024); 9601 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 9602 9603 if (error) { 9604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9605 "1413 Failed to initialize iocb list.\n"); 9606 goto out_unset_driver_resource_s4; 9607 } 9608 9609 INIT_LIST_HEAD(&phba->active_rrq_list); 9610 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 9611 9612 /* Set up common device driver resources */ 9613 error = lpfc_setup_driver_resource_phase2(phba); 9614 if (error) { 9615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9616 "1414 Failed to set up driver resource.\n"); 9617 goto out_free_iocb_list; 9618 } 9619 9620 /* Get the default values for Model Name and Description */ 9621 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 9622 9623 /* Create SCSI host to the physical port */ 9624 error = lpfc_create_shost(phba); 9625 if (error) { 9626 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9627 "1415 Failed to create scsi host.\n"); 9628 goto out_unset_driver_resource; 9629 } 9630 9631 /* Configure sysfs attributes */ 9632 vport = phba->pport; 9633 error = lpfc_alloc_sysfs_attr(vport); 9634 if (error) { 9635 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9636 "1416 Failed to allocate sysfs attr\n"); 9637 goto out_destroy_shost; 9638 } 9639 9640 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 9641 /* Now, trying to enable interrupt and bring up the device */ 9642 cfg_mode = phba->cfg_use_msi; 9643 9644 /* Put device to a known state before enabling interrupt */ 9645 lpfc_stop_port(phba); 9646 /* Configure and enable interrupt */ 9647 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 9648 if (intr_mode == LPFC_INTR_ERROR) { 9649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9650 "0426 Failed to enable interrupt.\n"); 9651 error = -ENODEV; 9652 goto out_free_sysfs_attr; 9653 } 9654 /* Default to single EQ for non-MSI-X */ 9655 if (phba->intr_type != MSIX) 9656 adjusted_fcp_io_channel = 1; 9657 else 9658 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel; 9659 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel; 9660 /* Set up SLI-4 HBA */ 9661 if (lpfc_sli4_hba_setup(phba)) { 9662 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9663 "1421 Failed to set up hba\n"); 9664 error = -ENODEV; 9665 goto out_disable_intr; 9666 } 9667 9668 /* Log the current active interrupt mode */ 9669 phba->intr_mode = intr_mode; 9670 lpfc_log_intr_mode(phba, intr_mode); 9671 9672 /* Perform post initialization setup */ 9673 lpfc_post_init_setup(phba); 9674 9675 /* check for firmware upgrade or downgrade */ 9676 if (phba->cfg_request_firmware_upgrade) 9677 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 9678 9679 /* Check if there are static vports to be created. */ 9680 lpfc_create_static_vport(phba); 9681 return 0; 9682 9683 out_disable_intr: 9684 lpfc_sli4_disable_intr(phba); 9685 out_free_sysfs_attr: 9686 lpfc_free_sysfs_attr(vport); 9687 out_destroy_shost: 9688 lpfc_destroy_shost(phba); 9689 out_unset_driver_resource: 9690 lpfc_unset_driver_resource_phase2(phba); 9691 out_free_iocb_list: 9692 lpfc_free_iocb_list(phba); 9693 out_unset_driver_resource_s4: 9694 lpfc_sli4_driver_resource_unset(phba); 9695 out_unset_pci_mem_s4: 9696 lpfc_sli4_pci_mem_unset(phba); 9697 out_disable_pci_dev: 9698 lpfc_disable_pci_dev(phba); 9699 if (shost) 9700 scsi_host_put(shost); 9701 out_free_phba: 9702 lpfc_hba_free(phba); 9703 return error; 9704 } 9705 9706 /** 9707 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 9708 * @pdev: pointer to PCI device 9709 * 9710 * This routine is called from the kernel's PCI subsystem to device with 9711 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9712 * removed from PCI bus, it performs all the necessary cleanup for the HBA 9713 * device to be removed from the PCI subsystem properly. 9714 **/ 9715 static void 9716 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 9717 { 9718 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9719 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 9720 struct lpfc_vport **vports; 9721 struct lpfc_hba *phba = vport->phba; 9722 int i; 9723 9724 /* Mark the device unloading flag */ 9725 spin_lock_irq(&phba->hbalock); 9726 vport->load_flag |= FC_UNLOADING; 9727 spin_unlock_irq(&phba->hbalock); 9728 9729 /* Free the HBA sysfs attributes */ 9730 lpfc_free_sysfs_attr(vport); 9731 9732 /* Release all the vports against this physical port */ 9733 vports = lpfc_create_vport_work_array(phba); 9734 if (vports != NULL) 9735 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 9736 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 9737 continue; 9738 fc_vport_terminate(vports[i]->fc_vport); 9739 } 9740 lpfc_destroy_vport_work_array(phba, vports); 9741 9742 /* Remove FC host and then SCSI host with the physical port */ 9743 fc_remove_host(shost); 9744 scsi_remove_host(shost); 9745 9746 /* Perform cleanup on the physical port */ 9747 lpfc_cleanup(vport); 9748 9749 /* 9750 * Bring down the SLI Layer. This step disables all interrupts, 9751 * clears the rings, discards all mailbox commands, and resets 9752 * the HBA FCoE function. 9753 */ 9754 lpfc_debugfs_terminate(vport); 9755 lpfc_sli4_hba_unset(phba); 9756 9757 spin_lock_irq(&phba->hbalock); 9758 list_del_init(&vport->listentry); 9759 spin_unlock_irq(&phba->hbalock); 9760 9761 /* Perform scsi free before driver resource_unset since scsi 9762 * buffers are released to their corresponding pools here. 9763 */ 9764 lpfc_scsi_free(phba); 9765 9766 lpfc_sli4_driver_resource_unset(phba); 9767 9768 /* Unmap adapter Control and Doorbell registers */ 9769 lpfc_sli4_pci_mem_unset(phba); 9770 9771 /* Release PCI resources and disable device's PCI function */ 9772 scsi_host_put(shost); 9773 lpfc_disable_pci_dev(phba); 9774 9775 /* Finally, free the driver's device data structure */ 9776 lpfc_hba_free(phba); 9777 9778 return; 9779 } 9780 9781 /** 9782 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 9783 * @pdev: pointer to PCI device 9784 * @msg: power management message 9785 * 9786 * This routine is called from the kernel's PCI subsystem to support system 9787 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 9788 * this method, it quiesces the device by stopping the driver's worker 9789 * thread for the device, turning off device's interrupt and DMA, and bring 9790 * the device offline. Note that as the driver implements the minimum PM 9791 * requirements to a power-aware driver's PM support for suspend/resume -- all 9792 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 9793 * method call will be treated as SUSPEND and the driver will fully 9794 * reinitialize its device during resume() method call, the driver will set 9795 * device to PCI_D3hot state in PCI config space instead of setting it 9796 * according to the @msg provided by the PM. 9797 * 9798 * Return code 9799 * 0 - driver suspended the device 9800 * Error otherwise 9801 **/ 9802 static int 9803 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 9804 { 9805 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9806 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9807 9808 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9809 "2843 PCI device Power Management suspend.\n"); 9810 9811 /* Bring down the device */ 9812 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 9813 lpfc_offline(phba); 9814 kthread_stop(phba->worker_thread); 9815 9816 /* Disable interrupt from device */ 9817 lpfc_sli4_disable_intr(phba); 9818 lpfc_sli4_queue_destroy(phba); 9819 9820 /* Save device state to PCI config space */ 9821 pci_save_state(pdev); 9822 pci_set_power_state(pdev, PCI_D3hot); 9823 9824 return 0; 9825 } 9826 9827 /** 9828 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 9829 * @pdev: pointer to PCI device 9830 * 9831 * This routine is called from the kernel's PCI subsystem to support system 9832 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 9833 * this method, it restores the device's PCI config space state and fully 9834 * reinitializes the device and brings it online. Note that as the driver 9835 * implements the minimum PM requirements to a power-aware driver's PM for 9836 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 9837 * to the suspend() method call will be treated as SUSPEND and the driver 9838 * will fully reinitialize its device during resume() method call, the device 9839 * will be set to PCI_D0 directly in PCI config space before restoring the 9840 * state. 9841 * 9842 * Return code 9843 * 0 - driver suspended the device 9844 * Error otherwise 9845 **/ 9846 static int 9847 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 9848 { 9849 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9850 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9851 uint32_t intr_mode; 9852 int error; 9853 9854 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9855 "0292 PCI device Power Management resume.\n"); 9856 9857 /* Restore device state from PCI config space */ 9858 pci_set_power_state(pdev, PCI_D0); 9859 pci_restore_state(pdev); 9860 9861 /* 9862 * As the new kernel behavior of pci_restore_state() API call clears 9863 * device saved_state flag, need to save the restored state again. 9864 */ 9865 pci_save_state(pdev); 9866 9867 if (pdev->is_busmaster) 9868 pci_set_master(pdev); 9869 9870 /* Startup the kernel thread for this host adapter. */ 9871 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9872 "lpfc_worker_%d", phba->brd_no); 9873 if (IS_ERR(phba->worker_thread)) { 9874 error = PTR_ERR(phba->worker_thread); 9875 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9876 "0293 PM resume failed to start worker " 9877 "thread: error=x%x.\n", error); 9878 return error; 9879 } 9880 9881 /* Configure and enable interrupt */ 9882 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9883 if (intr_mode == LPFC_INTR_ERROR) { 9884 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9885 "0294 PM resume Failed to enable interrupt\n"); 9886 return -EIO; 9887 } else 9888 phba->intr_mode = intr_mode; 9889 9890 /* Restart HBA and bring it online */ 9891 lpfc_sli_brdrestart(phba); 9892 lpfc_online(phba); 9893 9894 /* Log the current active interrupt mode */ 9895 lpfc_log_intr_mode(phba, phba->intr_mode); 9896 9897 return 0; 9898 } 9899 9900 /** 9901 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 9902 * @phba: pointer to lpfc hba data structure. 9903 * 9904 * This routine is called to prepare the SLI4 device for PCI slot recover. It 9905 * aborts all the outstanding SCSI I/Os to the pci device. 9906 **/ 9907 static void 9908 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 9909 { 9910 struct lpfc_sli *psli = &phba->sli; 9911 struct lpfc_sli_ring *pring; 9912 9913 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9914 "2828 PCI channel I/O abort preparing for recovery\n"); 9915 /* 9916 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9917 * and let the SCSI mid-layer to retry them to recover. 9918 */ 9919 pring = &psli->ring[psli->fcp_ring]; 9920 lpfc_sli_abort_iocb_ring(phba, pring); 9921 } 9922 9923 /** 9924 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 9925 * @phba: pointer to lpfc hba data structure. 9926 * 9927 * This routine is called to prepare the SLI4 device for PCI slot reset. It 9928 * disables the device interrupt and pci device, and aborts the internal FCP 9929 * pending I/Os. 9930 **/ 9931 static void 9932 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 9933 { 9934 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9935 "2826 PCI channel disable preparing for reset\n"); 9936 9937 /* Block any management I/Os to the device */ 9938 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 9939 9940 /* Block all SCSI devices' I/Os on the host */ 9941 lpfc_scsi_dev_block(phba); 9942 9943 /* stop all timers */ 9944 lpfc_stop_hba_timers(phba); 9945 9946 /* Disable interrupt and pci device */ 9947 lpfc_sli4_disable_intr(phba); 9948 lpfc_sli4_queue_destroy(phba); 9949 pci_disable_device(phba->pcidev); 9950 9951 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9952 lpfc_sli_flush_fcp_rings(phba); 9953 } 9954 9955 /** 9956 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 9957 * @phba: pointer to lpfc hba data structure. 9958 * 9959 * This routine is called to prepare the SLI4 device for PCI slot permanently 9960 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9961 * pending I/Os. 9962 **/ 9963 static void 9964 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9965 { 9966 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9967 "2827 PCI channel permanent disable for failure\n"); 9968 9969 /* Block all SCSI devices' I/Os on the host */ 9970 lpfc_scsi_dev_block(phba); 9971 9972 /* stop all timers */ 9973 lpfc_stop_hba_timers(phba); 9974 9975 /* Clean up all driver's outstanding SCSI I/Os */ 9976 lpfc_sli_flush_fcp_rings(phba); 9977 } 9978 9979 /** 9980 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 9981 * @pdev: pointer to PCI device. 9982 * @state: the current PCI connection state. 9983 * 9984 * This routine is called from the PCI subsystem for error handling to device 9985 * with SLI-4 interface spec. This function is called by the PCI subsystem 9986 * after a PCI bus error affecting this device has been detected. When this 9987 * function is invoked, it will need to stop all the I/Os and interrupt(s) 9988 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 9989 * for the PCI subsystem to perform proper recovery as desired. 9990 * 9991 * Return codes 9992 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9993 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9994 **/ 9995 static pci_ers_result_t 9996 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 9997 { 9998 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9999 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10000 10001 switch (state) { 10002 case pci_channel_io_normal: 10003 /* Non-fatal error, prepare for recovery */ 10004 lpfc_sli4_prep_dev_for_recover(phba); 10005 return PCI_ERS_RESULT_CAN_RECOVER; 10006 case pci_channel_io_frozen: 10007 /* Fatal error, prepare for slot reset */ 10008 lpfc_sli4_prep_dev_for_reset(phba); 10009 return PCI_ERS_RESULT_NEED_RESET; 10010 case pci_channel_io_perm_failure: 10011 /* Permanent failure, prepare for device down */ 10012 lpfc_sli4_prep_dev_for_perm_failure(phba); 10013 return PCI_ERS_RESULT_DISCONNECT; 10014 default: 10015 /* Unknown state, prepare and request slot reset */ 10016 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10017 "2825 Unknown PCI error state: x%x\n", state); 10018 lpfc_sli4_prep_dev_for_reset(phba); 10019 return PCI_ERS_RESULT_NEED_RESET; 10020 } 10021 } 10022 10023 /** 10024 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 10025 * @pdev: pointer to PCI device. 10026 * 10027 * This routine is called from the PCI subsystem for error handling to device 10028 * with SLI-4 interface spec. It is called after PCI bus has been reset to 10029 * restart the PCI card from scratch, as if from a cold-boot. During the 10030 * PCI subsystem error recovery, after the driver returns 10031 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 10032 * recovery and then call this routine before calling the .resume method to 10033 * recover the device. This function will initialize the HBA device, enable 10034 * the interrupt, but it will just put the HBA to offline state without 10035 * passing any I/O traffic. 10036 * 10037 * Return codes 10038 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10039 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10040 */ 10041 static pci_ers_result_t 10042 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 10043 { 10044 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10045 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10046 struct lpfc_sli *psli = &phba->sli; 10047 uint32_t intr_mode; 10048 10049 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 10050 if (pci_enable_device_mem(pdev)) { 10051 printk(KERN_ERR "lpfc: Cannot re-enable " 10052 "PCI device after reset.\n"); 10053 return PCI_ERS_RESULT_DISCONNECT; 10054 } 10055 10056 pci_restore_state(pdev); 10057 10058 /* 10059 * As the new kernel behavior of pci_restore_state() API call clears 10060 * device saved_state flag, need to save the restored state again. 10061 */ 10062 pci_save_state(pdev); 10063 10064 if (pdev->is_busmaster) 10065 pci_set_master(pdev); 10066 10067 spin_lock_irq(&phba->hbalock); 10068 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10069 spin_unlock_irq(&phba->hbalock); 10070 10071 /* Configure and enable interrupt */ 10072 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 10073 if (intr_mode == LPFC_INTR_ERROR) { 10074 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10075 "2824 Cannot re-enable interrupt after " 10076 "slot reset.\n"); 10077 return PCI_ERS_RESULT_DISCONNECT; 10078 } else 10079 phba->intr_mode = intr_mode; 10080 10081 /* Log the current active interrupt mode */ 10082 lpfc_log_intr_mode(phba, phba->intr_mode); 10083 10084 return PCI_ERS_RESULT_RECOVERED; 10085 } 10086 10087 /** 10088 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 10089 * @pdev: pointer to PCI device 10090 * 10091 * This routine is called from the PCI subsystem for error handling to device 10092 * with SLI-4 interface spec. It is called when kernel error recovery tells 10093 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10094 * error recovery. After this call, traffic can start to flow from this device 10095 * again. 10096 **/ 10097 static void 10098 lpfc_io_resume_s4(struct pci_dev *pdev) 10099 { 10100 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10101 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10102 10103 /* 10104 * In case of slot reset, as function reset is performed through 10105 * mailbox command which needs DMA to be enabled, this operation 10106 * has to be moved to the io resume phase. Taking device offline 10107 * will perform the necessary cleanup. 10108 */ 10109 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 10110 /* Perform device reset */ 10111 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10112 lpfc_offline(phba); 10113 lpfc_sli_brdrestart(phba); 10114 /* Bring the device back online */ 10115 lpfc_online(phba); 10116 } 10117 10118 /* Clean up Advanced Error Reporting (AER) if needed */ 10119 if (phba->hba_flag & HBA_AER_ENABLED) 10120 pci_cleanup_aer_uncorrect_error_status(pdev); 10121 } 10122 10123 /** 10124 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 10125 * @pdev: pointer to PCI device 10126 * @pid: pointer to PCI device identifier 10127 * 10128 * This routine is to be registered to the kernel's PCI subsystem. When an 10129 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 10130 * at PCI device-specific information of the device and driver to see if the 10131 * driver state that it can support this kind of device. If the match is 10132 * successful, the driver core invokes this routine. This routine dispatches 10133 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 10134 * do all the initialization that it needs to do to handle the HBA device 10135 * properly. 10136 * 10137 * Return code 10138 * 0 - driver can claim the device 10139 * negative value - driver can not claim the device 10140 **/ 10141 static int 10142 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 10143 { 10144 int rc; 10145 struct lpfc_sli_intf intf; 10146 10147 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 10148 return -ENODEV; 10149 10150 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 10151 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 10152 rc = lpfc_pci_probe_one_s4(pdev, pid); 10153 else 10154 rc = lpfc_pci_probe_one_s3(pdev, pid); 10155 10156 return rc; 10157 } 10158 10159 /** 10160 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 10161 * @pdev: pointer to PCI device 10162 * 10163 * This routine is to be registered to the kernel's PCI subsystem. When an 10164 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 10165 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 10166 * remove routine, which will perform all the necessary cleanup for the 10167 * device to be removed from the PCI subsystem properly. 10168 **/ 10169 static void 10170 lpfc_pci_remove_one(struct pci_dev *pdev) 10171 { 10172 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10173 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10174 10175 switch (phba->pci_dev_grp) { 10176 case LPFC_PCI_DEV_LP: 10177 lpfc_pci_remove_one_s3(pdev); 10178 break; 10179 case LPFC_PCI_DEV_OC: 10180 lpfc_pci_remove_one_s4(pdev); 10181 break; 10182 default: 10183 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10184 "1424 Invalid PCI device group: 0x%x\n", 10185 phba->pci_dev_grp); 10186 break; 10187 } 10188 return; 10189 } 10190 10191 /** 10192 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 10193 * @pdev: pointer to PCI device 10194 * @msg: power management message 10195 * 10196 * This routine is to be registered to the kernel's PCI subsystem to support 10197 * system Power Management (PM). When PM invokes this method, it dispatches 10198 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 10199 * suspend the device. 10200 * 10201 * Return code 10202 * 0 - driver suspended the device 10203 * Error otherwise 10204 **/ 10205 static int 10206 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 10207 { 10208 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10209 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10210 int rc = -ENODEV; 10211 10212 switch (phba->pci_dev_grp) { 10213 case LPFC_PCI_DEV_LP: 10214 rc = lpfc_pci_suspend_one_s3(pdev, msg); 10215 break; 10216 case LPFC_PCI_DEV_OC: 10217 rc = lpfc_pci_suspend_one_s4(pdev, msg); 10218 break; 10219 default: 10220 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10221 "1425 Invalid PCI device group: 0x%x\n", 10222 phba->pci_dev_grp); 10223 break; 10224 } 10225 return rc; 10226 } 10227 10228 /** 10229 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 10230 * @pdev: pointer to PCI device 10231 * 10232 * This routine is to be registered to the kernel's PCI subsystem to support 10233 * system Power Management (PM). When PM invokes this method, it dispatches 10234 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 10235 * resume the device. 10236 * 10237 * Return code 10238 * 0 - driver suspended the device 10239 * Error otherwise 10240 **/ 10241 static int 10242 lpfc_pci_resume_one(struct pci_dev *pdev) 10243 { 10244 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10245 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10246 int rc = -ENODEV; 10247 10248 switch (phba->pci_dev_grp) { 10249 case LPFC_PCI_DEV_LP: 10250 rc = lpfc_pci_resume_one_s3(pdev); 10251 break; 10252 case LPFC_PCI_DEV_OC: 10253 rc = lpfc_pci_resume_one_s4(pdev); 10254 break; 10255 default: 10256 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10257 "1426 Invalid PCI device group: 0x%x\n", 10258 phba->pci_dev_grp); 10259 break; 10260 } 10261 return rc; 10262 } 10263 10264 /** 10265 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 10266 * @pdev: pointer to PCI device. 10267 * @state: the current PCI connection state. 10268 * 10269 * This routine is registered to the PCI subsystem for error handling. This 10270 * function is called by the PCI subsystem after a PCI bus error affecting 10271 * this device has been detected. When this routine is invoked, it dispatches 10272 * the action to the proper SLI-3 or SLI-4 device error detected handling 10273 * routine, which will perform the proper error detected operation. 10274 * 10275 * Return codes 10276 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10277 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10278 **/ 10279 static pci_ers_result_t 10280 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 10281 { 10282 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10283 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10284 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 10285 10286 switch (phba->pci_dev_grp) { 10287 case LPFC_PCI_DEV_LP: 10288 rc = lpfc_io_error_detected_s3(pdev, state); 10289 break; 10290 case LPFC_PCI_DEV_OC: 10291 rc = lpfc_io_error_detected_s4(pdev, state); 10292 break; 10293 default: 10294 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10295 "1427 Invalid PCI device group: 0x%x\n", 10296 phba->pci_dev_grp); 10297 break; 10298 } 10299 return rc; 10300 } 10301 10302 /** 10303 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 10304 * @pdev: pointer to PCI device. 10305 * 10306 * This routine is registered to the PCI subsystem for error handling. This 10307 * function is called after PCI bus has been reset to restart the PCI card 10308 * from scratch, as if from a cold-boot. When this routine is invoked, it 10309 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 10310 * routine, which will perform the proper device reset. 10311 * 10312 * Return codes 10313 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10314 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10315 **/ 10316 static pci_ers_result_t 10317 lpfc_io_slot_reset(struct pci_dev *pdev) 10318 { 10319 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10320 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10321 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 10322 10323 switch (phba->pci_dev_grp) { 10324 case LPFC_PCI_DEV_LP: 10325 rc = lpfc_io_slot_reset_s3(pdev); 10326 break; 10327 case LPFC_PCI_DEV_OC: 10328 rc = lpfc_io_slot_reset_s4(pdev); 10329 break; 10330 default: 10331 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10332 "1428 Invalid PCI device group: 0x%x\n", 10333 phba->pci_dev_grp); 10334 break; 10335 } 10336 return rc; 10337 } 10338 10339 /** 10340 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 10341 * @pdev: pointer to PCI device 10342 * 10343 * This routine is registered to the PCI subsystem for error handling. It 10344 * is called when kernel error recovery tells the lpfc driver that it is 10345 * OK to resume normal PCI operation after PCI bus error recovery. When 10346 * this routine is invoked, it dispatches the action to the proper SLI-3 10347 * or SLI-4 device io_resume routine, which will resume the device operation. 10348 **/ 10349 static void 10350 lpfc_io_resume(struct pci_dev *pdev) 10351 { 10352 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10353 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10354 10355 switch (phba->pci_dev_grp) { 10356 case LPFC_PCI_DEV_LP: 10357 lpfc_io_resume_s3(pdev); 10358 break; 10359 case LPFC_PCI_DEV_OC: 10360 lpfc_io_resume_s4(pdev); 10361 break; 10362 default: 10363 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10364 "1429 Invalid PCI device group: 0x%x\n", 10365 phba->pci_dev_grp); 10366 break; 10367 } 10368 return; 10369 } 10370 10371 /** 10372 * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace 10373 * @inode: pointer to the inode representing the lpfcmgmt device 10374 * @filep: pointer to the file representing the open lpfcmgmt device 10375 * 10376 * This routine puts a reference count on the lpfc module whenever the 10377 * character device is opened 10378 **/ 10379 static int 10380 lpfc_mgmt_open(struct inode *inode, struct file *filep) 10381 { 10382 try_module_get(THIS_MODULE); 10383 return 0; 10384 } 10385 10386 /** 10387 * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace 10388 * @inode: pointer to the inode representing the lpfcmgmt device 10389 * @filep: pointer to the file representing the open lpfcmgmt device 10390 * 10391 * This routine removes a reference count from the lpfc module when the 10392 * character device is closed 10393 **/ 10394 static int 10395 lpfc_mgmt_release(struct inode *inode, struct file *filep) 10396 { 10397 module_put(THIS_MODULE); 10398 return 0; 10399 } 10400 10401 static struct pci_device_id lpfc_id_table[] = { 10402 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 10403 PCI_ANY_ID, PCI_ANY_ID, }, 10404 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 10405 PCI_ANY_ID, PCI_ANY_ID, }, 10406 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 10407 PCI_ANY_ID, PCI_ANY_ID, }, 10408 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 10409 PCI_ANY_ID, PCI_ANY_ID, }, 10410 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 10411 PCI_ANY_ID, PCI_ANY_ID, }, 10412 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 10413 PCI_ANY_ID, PCI_ANY_ID, }, 10414 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 10415 PCI_ANY_ID, PCI_ANY_ID, }, 10416 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 10417 PCI_ANY_ID, PCI_ANY_ID, }, 10418 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 10419 PCI_ANY_ID, PCI_ANY_ID, }, 10420 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 10421 PCI_ANY_ID, PCI_ANY_ID, }, 10422 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 10423 PCI_ANY_ID, PCI_ANY_ID, }, 10424 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 10425 PCI_ANY_ID, PCI_ANY_ID, }, 10426 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 10427 PCI_ANY_ID, PCI_ANY_ID, }, 10428 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 10429 PCI_ANY_ID, PCI_ANY_ID, }, 10430 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 10431 PCI_ANY_ID, PCI_ANY_ID, }, 10432 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 10433 PCI_ANY_ID, PCI_ANY_ID, }, 10434 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 10435 PCI_ANY_ID, PCI_ANY_ID, }, 10436 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 10437 PCI_ANY_ID, PCI_ANY_ID, }, 10438 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 10439 PCI_ANY_ID, PCI_ANY_ID, }, 10440 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 10441 PCI_ANY_ID, PCI_ANY_ID, }, 10442 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 10443 PCI_ANY_ID, PCI_ANY_ID, }, 10444 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 10445 PCI_ANY_ID, PCI_ANY_ID, }, 10446 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 10447 PCI_ANY_ID, PCI_ANY_ID, }, 10448 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 10449 PCI_ANY_ID, PCI_ANY_ID, }, 10450 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 10451 PCI_ANY_ID, PCI_ANY_ID, }, 10452 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 10453 PCI_ANY_ID, PCI_ANY_ID, }, 10454 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 10455 PCI_ANY_ID, PCI_ANY_ID, }, 10456 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 10457 PCI_ANY_ID, PCI_ANY_ID, }, 10458 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 10459 PCI_ANY_ID, PCI_ANY_ID, }, 10460 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 10461 PCI_ANY_ID, PCI_ANY_ID, }, 10462 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 10463 PCI_ANY_ID, PCI_ANY_ID, }, 10464 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 10465 PCI_ANY_ID, PCI_ANY_ID, }, 10466 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 10467 PCI_ANY_ID, PCI_ANY_ID, }, 10468 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 10469 PCI_ANY_ID, PCI_ANY_ID, }, 10470 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 10471 PCI_ANY_ID, PCI_ANY_ID, }, 10472 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 10473 PCI_ANY_ID, PCI_ANY_ID, }, 10474 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 10475 PCI_ANY_ID, PCI_ANY_ID, }, 10476 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 10477 PCI_ANY_ID, PCI_ANY_ID, }, 10478 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 10479 PCI_ANY_ID, PCI_ANY_ID, }, 10480 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 10481 PCI_ANY_ID, PCI_ANY_ID, }, 10482 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 10483 PCI_ANY_ID, PCI_ANY_ID, }, 10484 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, 10485 PCI_ANY_ID, PCI_ANY_ID, }, 10486 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, 10487 PCI_ANY_ID, PCI_ANY_ID, }, 10488 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF, 10489 PCI_ANY_ID, PCI_ANY_ID, }, 10490 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF, 10491 PCI_ANY_ID, PCI_ANY_ID, }, 10492 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK, 10493 PCI_ANY_ID, PCI_ANY_ID, }, 10494 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF, 10495 PCI_ANY_ID, PCI_ANY_ID, }, 10496 { 0 } 10497 }; 10498 10499 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 10500 10501 static const struct pci_error_handlers lpfc_err_handler = { 10502 .error_detected = lpfc_io_error_detected, 10503 .slot_reset = lpfc_io_slot_reset, 10504 .resume = lpfc_io_resume, 10505 }; 10506 10507 static struct pci_driver lpfc_driver = { 10508 .name = LPFC_DRIVER_NAME, 10509 .id_table = lpfc_id_table, 10510 .probe = lpfc_pci_probe_one, 10511 .remove = lpfc_pci_remove_one, 10512 .suspend = lpfc_pci_suspend_one, 10513 .resume = lpfc_pci_resume_one, 10514 .err_handler = &lpfc_err_handler, 10515 }; 10516 10517 static const struct file_operations lpfc_mgmt_fop = { 10518 .open = lpfc_mgmt_open, 10519 .release = lpfc_mgmt_release, 10520 }; 10521 10522 static struct miscdevice lpfc_mgmt_dev = { 10523 .minor = MISC_DYNAMIC_MINOR, 10524 .name = "lpfcmgmt", 10525 .fops = &lpfc_mgmt_fop, 10526 }; 10527 10528 /** 10529 * lpfc_init - lpfc module initialization routine 10530 * 10531 * This routine is to be invoked when the lpfc module is loaded into the 10532 * kernel. The special kernel macro module_init() is used to indicate the 10533 * role of this routine to the kernel as lpfc module entry point. 10534 * 10535 * Return codes 10536 * 0 - successful 10537 * -ENOMEM - FC attach transport failed 10538 * all others - failed 10539 */ 10540 static int __init 10541 lpfc_init(void) 10542 { 10543 int error = 0; 10544 10545 printk(LPFC_MODULE_DESC "\n"); 10546 printk(LPFC_COPYRIGHT "\n"); 10547 10548 error = misc_register(&lpfc_mgmt_dev); 10549 if (error) 10550 printk(KERN_ERR "Could not register lpfcmgmt device, " 10551 "misc_register returned with status %d", error); 10552 10553 if (lpfc_enable_npiv) { 10554 lpfc_transport_functions.vport_create = lpfc_vport_create; 10555 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 10556 } 10557 lpfc_transport_template = 10558 fc_attach_transport(&lpfc_transport_functions); 10559 if (lpfc_transport_template == NULL) 10560 return -ENOMEM; 10561 if (lpfc_enable_npiv) { 10562 lpfc_vport_transport_template = 10563 fc_attach_transport(&lpfc_vport_transport_functions); 10564 if (lpfc_vport_transport_template == NULL) { 10565 fc_release_transport(lpfc_transport_template); 10566 return -ENOMEM; 10567 } 10568 } 10569 error = pci_register_driver(&lpfc_driver); 10570 if (error) { 10571 fc_release_transport(lpfc_transport_template); 10572 if (lpfc_enable_npiv) 10573 fc_release_transport(lpfc_vport_transport_template); 10574 } 10575 10576 return error; 10577 } 10578 10579 /** 10580 * lpfc_exit - lpfc module removal routine 10581 * 10582 * This routine is invoked when the lpfc module is removed from the kernel. 10583 * The special kernel macro module_exit() is used to indicate the role of 10584 * this routine to the kernel as lpfc module exit point. 10585 */ 10586 static void __exit 10587 lpfc_exit(void) 10588 { 10589 misc_deregister(&lpfc_mgmt_dev); 10590 pci_unregister_driver(&lpfc_driver); 10591 fc_release_transport(lpfc_transport_template); 10592 if (lpfc_enable_npiv) 10593 fc_release_transport(lpfc_vport_transport_template); 10594 if (_dump_buf_data) { 10595 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 10596 "_dump_buf_data at 0x%p\n", 10597 (1L << _dump_buf_data_order), _dump_buf_data); 10598 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 10599 } 10600 10601 if (_dump_buf_dif) { 10602 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 10603 "_dump_buf_dif at 0x%p\n", 10604 (1L << _dump_buf_dif_order), _dump_buf_dif); 10605 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 10606 } 10607 } 10608 10609 module_init(lpfc_init); 10610 module_exit(lpfc_exit); 10611 MODULE_LICENSE("GPL"); 10612 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 10613 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 10614 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 10615