1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2015 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 #include <linux/percpu.h> 37 38 #include <scsi/scsi.h> 39 #include <scsi/scsi_device.h> 40 #include <scsi/scsi_host.h> 41 #include <scsi/scsi_transport_fc.h> 42 43 #include "lpfc_hw4.h" 44 #include "lpfc_hw.h" 45 #include "lpfc_sli.h" 46 #include "lpfc_sli4.h" 47 #include "lpfc_nl.h" 48 #include "lpfc_disc.h" 49 #include "lpfc_scsi.h" 50 #include "lpfc.h" 51 #include "lpfc_logmsg.h" 52 #include "lpfc_crtn.h" 53 #include "lpfc_vport.h" 54 #include "lpfc_version.h" 55 56 char *_dump_buf_data; 57 unsigned long _dump_buf_data_order; 58 char *_dump_buf_dif; 59 unsigned long _dump_buf_dif_order; 60 spinlock_t _dump_buf_lock; 61 62 /* Used when mapping IRQ vectors in a driver centric manner */ 63 uint16_t *lpfc_used_cpu; 64 uint32_t lpfc_present_cpu; 65 66 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 67 static int lpfc_post_rcv_buf(struct lpfc_hba *); 68 static int lpfc_sli4_queue_verify(struct lpfc_hba *); 69 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 70 static int lpfc_setup_endian_order(struct lpfc_hba *); 71 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 72 static void lpfc_free_els_sgl_list(struct lpfc_hba *); 73 static void lpfc_init_sgl_list(struct lpfc_hba *); 74 static int lpfc_init_active_sgl_array(struct lpfc_hba *); 75 static void lpfc_free_active_sgl(struct lpfc_hba *); 76 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 77 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 78 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 79 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 80 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 81 static void lpfc_sli4_disable_intr(struct lpfc_hba *); 82 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t); 83 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba); 84 85 static struct scsi_transport_template *lpfc_transport_template = NULL; 86 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 87 static DEFINE_IDR(lpfc_hba_index); 88 89 /** 90 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 91 * @phba: pointer to lpfc hba data structure. 92 * 93 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 94 * mailbox command. It retrieves the revision information from the HBA and 95 * collects the Vital Product Data (VPD) about the HBA for preparing the 96 * configuration of the HBA. 97 * 98 * Return codes: 99 * 0 - success. 100 * -ERESTART - requests the SLI layer to reset the HBA and try again. 101 * Any other value - indicates an error. 102 **/ 103 int 104 lpfc_config_port_prep(struct lpfc_hba *phba) 105 { 106 lpfc_vpd_t *vp = &phba->vpd; 107 int i = 0, rc; 108 LPFC_MBOXQ_t *pmb; 109 MAILBOX_t *mb; 110 char *lpfc_vpd_data = NULL; 111 uint16_t offset = 0; 112 static char licensed[56] = 113 "key unlock for use with gnu public licensed code only\0"; 114 static int init_key = 1; 115 116 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 117 if (!pmb) { 118 phba->link_state = LPFC_HBA_ERROR; 119 return -ENOMEM; 120 } 121 122 mb = &pmb->u.mb; 123 phba->link_state = LPFC_INIT_MBX_CMDS; 124 125 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 126 if (init_key) { 127 uint32_t *ptext = (uint32_t *) licensed; 128 129 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 130 *ptext = cpu_to_be32(*ptext); 131 init_key = 0; 132 } 133 134 lpfc_read_nv(phba, pmb); 135 memset((char*)mb->un.varRDnvp.rsvd3, 0, 136 sizeof (mb->un.varRDnvp.rsvd3)); 137 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 138 sizeof (licensed)); 139 140 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 141 142 if (rc != MBX_SUCCESS) { 143 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 144 "0324 Config Port initialization " 145 "error, mbxCmd x%x READ_NVPARM, " 146 "mbxStatus x%x\n", 147 mb->mbxCommand, mb->mbxStatus); 148 mempool_free(pmb, phba->mbox_mem_pool); 149 return -ERESTART; 150 } 151 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 152 sizeof(phba->wwnn)); 153 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 154 sizeof(phba->wwpn)); 155 } 156 157 phba->sli3_options = 0x0; 158 159 /* Setup and issue mailbox READ REV command */ 160 lpfc_read_rev(phba, pmb); 161 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 162 if (rc != MBX_SUCCESS) { 163 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 164 "0439 Adapter failed to init, mbxCmd x%x " 165 "READ_REV, mbxStatus x%x\n", 166 mb->mbxCommand, mb->mbxStatus); 167 mempool_free( pmb, phba->mbox_mem_pool); 168 return -ERESTART; 169 } 170 171 172 /* 173 * The value of rr must be 1 since the driver set the cv field to 1. 174 * This setting requires the FW to set all revision fields. 175 */ 176 if (mb->un.varRdRev.rr == 0) { 177 vp->rev.rBit = 0; 178 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 179 "0440 Adapter failed to init, READ_REV has " 180 "missing revision information.\n"); 181 mempool_free(pmb, phba->mbox_mem_pool); 182 return -ERESTART; 183 } 184 185 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 186 mempool_free(pmb, phba->mbox_mem_pool); 187 return -EINVAL; 188 } 189 190 /* Save information as VPD data */ 191 vp->rev.rBit = 1; 192 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 193 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 194 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 195 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 196 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 197 vp->rev.biuRev = mb->un.varRdRev.biuRev; 198 vp->rev.smRev = mb->un.varRdRev.smRev; 199 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 200 vp->rev.endecRev = mb->un.varRdRev.endecRev; 201 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 202 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 203 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 204 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 205 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 206 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 207 208 /* If the sli feature level is less then 9, we must 209 * tear down all RPIs and VPIs on link down if NPIV 210 * is enabled. 211 */ 212 if (vp->rev.feaLevelHigh < 9) 213 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 214 215 if (lpfc_is_LC_HBA(phba->pcidev->device)) 216 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 217 sizeof (phba->RandomData)); 218 219 /* Get adapter VPD information */ 220 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 221 if (!lpfc_vpd_data) 222 goto out_free_mbox; 223 do { 224 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 225 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 226 227 if (rc != MBX_SUCCESS) { 228 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 229 "0441 VPD not present on adapter, " 230 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 231 mb->mbxCommand, mb->mbxStatus); 232 mb->un.varDmp.word_cnt = 0; 233 } 234 /* dump mem may return a zero when finished or we got a 235 * mailbox error, either way we are done. 236 */ 237 if (mb->un.varDmp.word_cnt == 0) 238 break; 239 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 240 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 241 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 242 lpfc_vpd_data + offset, 243 mb->un.varDmp.word_cnt); 244 offset += mb->un.varDmp.word_cnt; 245 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 246 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 247 248 kfree(lpfc_vpd_data); 249 out_free_mbox: 250 mempool_free(pmb, phba->mbox_mem_pool); 251 return 0; 252 } 253 254 /** 255 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 256 * @phba: pointer to lpfc hba data structure. 257 * @pmboxq: pointer to the driver internal queue element for mailbox command. 258 * 259 * This is the completion handler for driver's configuring asynchronous event 260 * mailbox command to the device. If the mailbox command returns successfully, 261 * it will set internal async event support flag to 1; otherwise, it will 262 * set internal async event support flag to 0. 263 **/ 264 static void 265 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 266 { 267 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 268 phba->temp_sensor_support = 1; 269 else 270 phba->temp_sensor_support = 0; 271 mempool_free(pmboxq, phba->mbox_mem_pool); 272 return; 273 } 274 275 /** 276 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 277 * @phba: pointer to lpfc hba data structure. 278 * @pmboxq: pointer to the driver internal queue element for mailbox command. 279 * 280 * This is the completion handler for dump mailbox command for getting 281 * wake up parameters. When this command complete, the response contain 282 * Option rom version of the HBA. This function translate the version number 283 * into a human readable string and store it in OptionROMVersion. 284 **/ 285 static void 286 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 287 { 288 struct prog_id *prg; 289 uint32_t prog_id_word; 290 char dist = ' '; 291 /* character array used for decoding dist type. */ 292 char dist_char[] = "nabx"; 293 294 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 295 mempool_free(pmboxq, phba->mbox_mem_pool); 296 return; 297 } 298 299 prg = (struct prog_id *) &prog_id_word; 300 301 /* word 7 contain option rom version */ 302 prog_id_word = pmboxq->u.mb.un.varWords[7]; 303 304 /* Decode the Option rom version word to a readable string */ 305 if (prg->dist < 4) 306 dist = dist_char[prg->dist]; 307 308 if ((prg->dist == 3) && (prg->num == 0)) 309 snprintf(phba->OptionROMVersion, 32, "%d.%d%d", 310 prg->ver, prg->rev, prg->lev); 311 else 312 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d", 313 prg->ver, prg->rev, prg->lev, 314 dist, prg->num); 315 mempool_free(pmboxq, phba->mbox_mem_pool); 316 return; 317 } 318 319 /** 320 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 321 * cfg_soft_wwnn, cfg_soft_wwpn 322 * @vport: pointer to lpfc vport data structure. 323 * 324 * 325 * Return codes 326 * None. 327 **/ 328 void 329 lpfc_update_vport_wwn(struct lpfc_vport *vport) 330 { 331 /* If the soft name exists then update it using the service params */ 332 if (vport->phba->cfg_soft_wwnn) 333 u64_to_wwn(vport->phba->cfg_soft_wwnn, 334 vport->fc_sparam.nodeName.u.wwn); 335 if (vport->phba->cfg_soft_wwpn) 336 u64_to_wwn(vport->phba->cfg_soft_wwpn, 337 vport->fc_sparam.portName.u.wwn); 338 339 /* 340 * If the name is empty or there exists a soft name 341 * then copy the service params name, otherwise use the fc name 342 */ 343 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 344 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 345 sizeof(struct lpfc_name)); 346 else 347 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 348 sizeof(struct lpfc_name)); 349 350 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn) 351 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 352 sizeof(struct lpfc_name)); 353 else 354 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 355 sizeof(struct lpfc_name)); 356 } 357 358 /** 359 * lpfc_config_port_post - Perform lpfc initialization after config port 360 * @phba: pointer to lpfc hba data structure. 361 * 362 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 363 * command call. It performs all internal resource and state setups on the 364 * port: post IOCB buffers, enable appropriate host interrupt attentions, 365 * ELS ring timers, etc. 366 * 367 * Return codes 368 * 0 - success. 369 * Any other value - error. 370 **/ 371 int 372 lpfc_config_port_post(struct lpfc_hba *phba) 373 { 374 struct lpfc_vport *vport = phba->pport; 375 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 376 LPFC_MBOXQ_t *pmb; 377 MAILBOX_t *mb; 378 struct lpfc_dmabuf *mp; 379 struct lpfc_sli *psli = &phba->sli; 380 uint32_t status, timeout; 381 int i, j; 382 int rc; 383 384 spin_lock_irq(&phba->hbalock); 385 /* 386 * If the Config port completed correctly the HBA is not 387 * over heated any more. 388 */ 389 if (phba->over_temp_state == HBA_OVER_TEMP) 390 phba->over_temp_state = HBA_NORMAL_TEMP; 391 spin_unlock_irq(&phba->hbalock); 392 393 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 394 if (!pmb) { 395 phba->link_state = LPFC_HBA_ERROR; 396 return -ENOMEM; 397 } 398 mb = &pmb->u.mb; 399 400 /* Get login parameters for NID. */ 401 rc = lpfc_read_sparam(phba, pmb, 0); 402 if (rc) { 403 mempool_free(pmb, phba->mbox_mem_pool); 404 return -ENOMEM; 405 } 406 407 pmb->vport = vport; 408 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 410 "0448 Adapter failed init, mbxCmd x%x " 411 "READ_SPARM mbxStatus x%x\n", 412 mb->mbxCommand, mb->mbxStatus); 413 phba->link_state = LPFC_HBA_ERROR; 414 mp = (struct lpfc_dmabuf *) pmb->context1; 415 mempool_free(pmb, phba->mbox_mem_pool); 416 lpfc_mbuf_free(phba, mp->virt, mp->phys); 417 kfree(mp); 418 return -EIO; 419 } 420 421 mp = (struct lpfc_dmabuf *) pmb->context1; 422 423 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 424 lpfc_mbuf_free(phba, mp->virt, mp->phys); 425 kfree(mp); 426 pmb->context1 = NULL; 427 lpfc_update_vport_wwn(vport); 428 429 /* Update the fc_host data structures with new wwn. */ 430 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 431 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 432 fc_host_max_npiv_vports(shost) = phba->max_vpi; 433 434 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 435 /* This should be consolidated into parse_vpd ? - mr */ 436 if (phba->SerialNumber[0] == 0) { 437 uint8_t *outptr; 438 439 outptr = &vport->fc_nodename.u.s.IEEE[0]; 440 for (i = 0; i < 12; i++) { 441 status = *outptr++; 442 j = ((status & 0xf0) >> 4); 443 if (j <= 9) 444 phba->SerialNumber[i] = 445 (char)((uint8_t) 0x30 + (uint8_t) j); 446 else 447 phba->SerialNumber[i] = 448 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 449 i++; 450 j = (status & 0xf); 451 if (j <= 9) 452 phba->SerialNumber[i] = 453 (char)((uint8_t) 0x30 + (uint8_t) j); 454 else 455 phba->SerialNumber[i] = 456 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 457 } 458 } 459 460 lpfc_read_config(phba, pmb); 461 pmb->vport = vport; 462 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 464 "0453 Adapter failed to init, mbxCmd x%x " 465 "READ_CONFIG, mbxStatus x%x\n", 466 mb->mbxCommand, mb->mbxStatus); 467 phba->link_state = LPFC_HBA_ERROR; 468 mempool_free( pmb, phba->mbox_mem_pool); 469 return -EIO; 470 } 471 472 /* Check if the port is disabled */ 473 lpfc_sli_read_link_ste(phba); 474 475 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 476 i = (mb->un.varRdConfig.max_xri + 1); 477 if (phba->cfg_hba_queue_depth > i) { 478 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 479 "3359 HBA queue depth changed from %d to %d\n", 480 phba->cfg_hba_queue_depth, i); 481 phba->cfg_hba_queue_depth = i; 482 } 483 484 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */ 485 i = (mb->un.varRdConfig.max_xri >> 3); 486 if (phba->pport->cfg_lun_queue_depth > i) { 487 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 488 "3360 LUN queue depth changed from %d to %d\n", 489 phba->pport->cfg_lun_queue_depth, i); 490 phba->pport->cfg_lun_queue_depth = i; 491 } 492 493 phba->lmt = mb->un.varRdConfig.lmt; 494 495 /* Get the default values for Model Name and Description */ 496 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 497 498 phba->link_state = LPFC_LINK_DOWN; 499 500 /* Only process IOCBs on ELS ring till hba_state is READY */ 501 if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr) 502 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 503 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr) 504 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 505 if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr) 506 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 507 508 /* Post receive buffers for desired rings */ 509 if (phba->sli_rev != 3) 510 lpfc_post_rcv_buf(phba); 511 512 /* 513 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 514 */ 515 if (phba->intr_type == MSIX) { 516 rc = lpfc_config_msi(phba, pmb); 517 if (rc) { 518 mempool_free(pmb, phba->mbox_mem_pool); 519 return -EIO; 520 } 521 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 522 if (rc != MBX_SUCCESS) { 523 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 524 "0352 Config MSI mailbox command " 525 "failed, mbxCmd x%x, mbxStatus x%x\n", 526 pmb->u.mb.mbxCommand, 527 pmb->u.mb.mbxStatus); 528 mempool_free(pmb, phba->mbox_mem_pool); 529 return -EIO; 530 } 531 } 532 533 spin_lock_irq(&phba->hbalock); 534 /* Initialize ERATT handling flag */ 535 phba->hba_flag &= ~HBA_ERATT_HANDLED; 536 537 /* Enable appropriate host interrupts */ 538 if (lpfc_readl(phba->HCregaddr, &status)) { 539 spin_unlock_irq(&phba->hbalock); 540 return -EIO; 541 } 542 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 543 if (psli->num_rings > 0) 544 status |= HC_R0INT_ENA; 545 if (psli->num_rings > 1) 546 status |= HC_R1INT_ENA; 547 if (psli->num_rings > 2) 548 status |= HC_R2INT_ENA; 549 if (psli->num_rings > 3) 550 status |= HC_R3INT_ENA; 551 552 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 553 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 554 status &= ~(HC_R0INT_ENA); 555 556 writel(status, phba->HCregaddr); 557 readl(phba->HCregaddr); /* flush */ 558 spin_unlock_irq(&phba->hbalock); 559 560 /* Set up ring-0 (ELS) timer */ 561 timeout = phba->fc_ratov * 2; 562 mod_timer(&vport->els_tmofunc, 563 jiffies + msecs_to_jiffies(1000 * timeout)); 564 /* Set up heart beat (HB) timer */ 565 mod_timer(&phba->hb_tmofunc, 566 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 567 phba->hb_outstanding = 0; 568 phba->last_completion_time = jiffies; 569 /* Set up error attention (ERATT) polling timer */ 570 mod_timer(&phba->eratt_poll, 571 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL)); 572 573 if (phba->hba_flag & LINK_DISABLED) { 574 lpfc_printf_log(phba, 575 KERN_ERR, LOG_INIT, 576 "2598 Adapter Link is disabled.\n"); 577 lpfc_down_link(phba, pmb); 578 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 579 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 580 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 581 lpfc_printf_log(phba, 582 KERN_ERR, LOG_INIT, 583 "2599 Adapter failed to issue DOWN_LINK" 584 " mbox command rc 0x%x\n", rc); 585 586 mempool_free(pmb, phba->mbox_mem_pool); 587 return -EIO; 588 } 589 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 590 mempool_free(pmb, phba->mbox_mem_pool); 591 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 592 if (rc) 593 return rc; 594 } 595 /* MBOX buffer will be freed in mbox compl */ 596 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 597 if (!pmb) { 598 phba->link_state = LPFC_HBA_ERROR; 599 return -ENOMEM; 600 } 601 602 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 603 pmb->mbox_cmpl = lpfc_config_async_cmpl; 604 pmb->vport = phba->pport; 605 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 606 607 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 608 lpfc_printf_log(phba, 609 KERN_ERR, 610 LOG_INIT, 611 "0456 Adapter failed to issue " 612 "ASYNCEVT_ENABLE mbox status x%x\n", 613 rc); 614 mempool_free(pmb, phba->mbox_mem_pool); 615 } 616 617 /* Get Option rom version */ 618 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 619 if (!pmb) { 620 phba->link_state = LPFC_HBA_ERROR; 621 return -ENOMEM; 622 } 623 624 lpfc_dump_wakeup_param(phba, pmb); 625 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 626 pmb->vport = phba->pport; 627 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 628 629 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 631 "to get Option ROM version status x%x\n", rc); 632 mempool_free(pmb, phba->mbox_mem_pool); 633 } 634 635 return 0; 636 } 637 638 /** 639 * lpfc_hba_init_link - Initialize the FC link 640 * @phba: pointer to lpfc hba data structure. 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 static int 653 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 654 { 655 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); 656 } 657 658 /** 659 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology 660 * @phba: pointer to lpfc hba data structure. 661 * @fc_topology: desired fc topology. 662 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 663 * 664 * This routine will issue the INIT_LINK mailbox command call. 665 * It is available to other drivers through the lpfc_hba data 666 * structure for use as a delayed link up mechanism with the 667 * module parameter lpfc_suppress_link_up. 668 * 669 * Return code 670 * 0 - success 671 * Any other value - error 672 **/ 673 int 674 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, 675 uint32_t flag) 676 { 677 struct lpfc_vport *vport = phba->pport; 678 LPFC_MBOXQ_t *pmb; 679 MAILBOX_t *mb; 680 int rc; 681 682 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 683 if (!pmb) { 684 phba->link_state = LPFC_HBA_ERROR; 685 return -ENOMEM; 686 } 687 mb = &pmb->u.mb; 688 pmb->vport = vport; 689 690 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || 691 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && 692 !(phba->lmt & LMT_1Gb)) || 693 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && 694 !(phba->lmt & LMT_2Gb)) || 695 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && 696 !(phba->lmt & LMT_4Gb)) || 697 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && 698 !(phba->lmt & LMT_8Gb)) || 699 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && 700 !(phba->lmt & LMT_10Gb)) || 701 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && 702 !(phba->lmt & LMT_16Gb))) { 703 /* Reset link speed to auto */ 704 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 705 "1302 Invalid speed for this board:%d " 706 "Reset link speed to auto.\n", 707 phba->cfg_link_speed); 708 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 709 } 710 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); 711 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 712 if (phba->sli_rev < LPFC_SLI_REV4) 713 lpfc_set_loopback_flag(phba); 714 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 715 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 717 "0498 Adapter failed to init, mbxCmd x%x " 718 "INIT_LINK, mbxStatus x%x\n", 719 mb->mbxCommand, mb->mbxStatus); 720 if (phba->sli_rev <= LPFC_SLI_REV3) { 721 /* Clear all interrupt enable conditions */ 722 writel(0, phba->HCregaddr); 723 readl(phba->HCregaddr); /* flush */ 724 /* Clear all pending interrupts */ 725 writel(0xffffffff, phba->HAregaddr); 726 readl(phba->HAregaddr); /* flush */ 727 } 728 phba->link_state = LPFC_HBA_ERROR; 729 if (rc != MBX_BUSY || flag == MBX_POLL) 730 mempool_free(pmb, phba->mbox_mem_pool); 731 return -EIO; 732 } 733 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 734 if (flag == MBX_POLL) 735 mempool_free(pmb, phba->mbox_mem_pool); 736 737 return 0; 738 } 739 740 /** 741 * lpfc_hba_down_link - this routine downs the FC link 742 * @phba: pointer to lpfc hba data structure. 743 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 744 * 745 * This routine will issue the DOWN_LINK mailbox command call. 746 * It is available to other drivers through the lpfc_hba data 747 * structure for use to stop the link. 748 * 749 * Return code 750 * 0 - success 751 * Any other value - error 752 **/ 753 static int 754 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 755 { 756 LPFC_MBOXQ_t *pmb; 757 int rc; 758 759 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 760 if (!pmb) { 761 phba->link_state = LPFC_HBA_ERROR; 762 return -ENOMEM; 763 } 764 765 lpfc_printf_log(phba, 766 KERN_ERR, LOG_INIT, 767 "0491 Adapter Link is disabled.\n"); 768 lpfc_down_link(phba, pmb); 769 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 770 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 771 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 772 lpfc_printf_log(phba, 773 KERN_ERR, LOG_INIT, 774 "2522 Adapter failed to issue DOWN_LINK" 775 " mbox command rc 0x%x\n", rc); 776 777 mempool_free(pmb, phba->mbox_mem_pool); 778 return -EIO; 779 } 780 if (flag == MBX_POLL) 781 mempool_free(pmb, phba->mbox_mem_pool); 782 783 return 0; 784 } 785 786 /** 787 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 788 * @phba: pointer to lpfc HBA data structure. 789 * 790 * This routine will do LPFC uninitialization before the HBA is reset when 791 * bringing down the SLI Layer. 792 * 793 * Return codes 794 * 0 - success. 795 * Any other value - error. 796 **/ 797 int 798 lpfc_hba_down_prep(struct lpfc_hba *phba) 799 { 800 struct lpfc_vport **vports; 801 int i; 802 803 if (phba->sli_rev <= LPFC_SLI_REV3) { 804 /* Disable interrupts */ 805 writel(0, phba->HCregaddr); 806 readl(phba->HCregaddr); /* flush */ 807 } 808 809 if (phba->pport->load_flag & FC_UNLOADING) 810 lpfc_cleanup_discovery_resources(phba->pport); 811 else { 812 vports = lpfc_create_vport_work_array(phba); 813 if (vports != NULL) 814 for (i = 0; i <= phba->max_vports && 815 vports[i] != NULL; i++) 816 lpfc_cleanup_discovery_resources(vports[i]); 817 lpfc_destroy_vport_work_array(phba, vports); 818 } 819 return 0; 820 } 821 822 /** 823 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free 824 * rspiocb which got deferred 825 * 826 * @phba: pointer to lpfc HBA data structure. 827 * 828 * This routine will cleanup completed slow path events after HBA is reset 829 * when bringing down the SLI Layer. 830 * 831 * 832 * Return codes 833 * void. 834 **/ 835 static void 836 lpfc_sli4_free_sp_events(struct lpfc_hba *phba) 837 { 838 struct lpfc_iocbq *rspiocbq; 839 struct hbq_dmabuf *dmabuf; 840 struct lpfc_cq_event *cq_event; 841 842 spin_lock_irq(&phba->hbalock); 843 phba->hba_flag &= ~HBA_SP_QUEUE_EVT; 844 spin_unlock_irq(&phba->hbalock); 845 846 while (!list_empty(&phba->sli4_hba.sp_queue_event)) { 847 /* Get the response iocb from the head of work queue */ 848 spin_lock_irq(&phba->hbalock); 849 list_remove_head(&phba->sli4_hba.sp_queue_event, 850 cq_event, struct lpfc_cq_event, list); 851 spin_unlock_irq(&phba->hbalock); 852 853 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) { 854 case CQE_CODE_COMPL_WQE: 855 rspiocbq = container_of(cq_event, struct lpfc_iocbq, 856 cq_event); 857 lpfc_sli_release_iocbq(phba, rspiocbq); 858 break; 859 case CQE_CODE_RECEIVE: 860 case CQE_CODE_RECEIVE_V1: 861 dmabuf = container_of(cq_event, struct hbq_dmabuf, 862 cq_event); 863 lpfc_in_buf_free(phba, &dmabuf->dbuf); 864 } 865 } 866 } 867 868 /** 869 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset 870 * @phba: pointer to lpfc HBA data structure. 871 * 872 * This routine will cleanup posted ELS buffers after the HBA is reset 873 * when bringing down the SLI Layer. 874 * 875 * 876 * Return codes 877 * void. 878 **/ 879 static void 880 lpfc_hba_free_post_buf(struct lpfc_hba *phba) 881 { 882 struct lpfc_sli *psli = &phba->sli; 883 struct lpfc_sli_ring *pring; 884 struct lpfc_dmabuf *mp, *next_mp; 885 LIST_HEAD(buflist); 886 int count; 887 888 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 889 lpfc_sli_hbqbuf_free_all(phba); 890 else { 891 /* Cleanup preposted buffers on the ELS ring */ 892 pring = &psli->ring[LPFC_ELS_RING]; 893 spin_lock_irq(&phba->hbalock); 894 list_splice_init(&pring->postbufq, &buflist); 895 spin_unlock_irq(&phba->hbalock); 896 897 count = 0; 898 list_for_each_entry_safe(mp, next_mp, &buflist, list) { 899 list_del(&mp->list); 900 count++; 901 lpfc_mbuf_free(phba, mp->virt, mp->phys); 902 kfree(mp); 903 } 904 905 spin_lock_irq(&phba->hbalock); 906 pring->postbufq_cnt -= count; 907 spin_unlock_irq(&phba->hbalock); 908 } 909 } 910 911 /** 912 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset 913 * @phba: pointer to lpfc HBA data structure. 914 * 915 * This routine will cleanup the txcmplq after the HBA is reset when bringing 916 * down the SLI Layer. 917 * 918 * Return codes 919 * void 920 **/ 921 static void 922 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba) 923 { 924 struct lpfc_sli *psli = &phba->sli; 925 struct lpfc_sli_ring *pring; 926 LIST_HEAD(completions); 927 int i; 928 929 for (i = 0; i < psli->num_rings; i++) { 930 pring = &psli->ring[i]; 931 if (phba->sli_rev >= LPFC_SLI_REV4) 932 spin_lock_irq(&pring->ring_lock); 933 else 934 spin_lock_irq(&phba->hbalock); 935 /* At this point in time the HBA is either reset or DOA. Either 936 * way, nothing should be on txcmplq as it will NEVER complete. 937 */ 938 list_splice_init(&pring->txcmplq, &completions); 939 pring->txcmplq_cnt = 0; 940 941 if (phba->sli_rev >= LPFC_SLI_REV4) 942 spin_unlock_irq(&pring->ring_lock); 943 else 944 spin_unlock_irq(&phba->hbalock); 945 946 /* Cancel all the IOCBs from the completions list */ 947 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 948 IOERR_SLI_ABORTED); 949 lpfc_sli_abort_iocb_ring(phba, pring); 950 } 951 } 952 953 /** 954 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 955 int i; 956 * @phba: pointer to lpfc HBA data structure. 957 * 958 * This routine will do uninitialization after the HBA is reset when bring 959 * down the SLI Layer. 960 * 961 * Return codes 962 * 0 - success. 963 * Any other value - error. 964 **/ 965 static int 966 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 967 { 968 lpfc_hba_free_post_buf(phba); 969 lpfc_hba_clean_txcmplq(phba); 970 return 0; 971 } 972 973 /** 974 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 975 * @phba: pointer to lpfc HBA data structure. 976 * 977 * This routine will do uninitialization after the HBA is reset when bring 978 * down the SLI Layer. 979 * 980 * Return codes 981 * 0 - success. 982 * Any other value - error. 983 **/ 984 static int 985 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 986 { 987 struct lpfc_scsi_buf *psb, *psb_next; 988 LIST_HEAD(aborts); 989 unsigned long iflag = 0; 990 struct lpfc_sglq *sglq_entry = NULL; 991 struct lpfc_sli *psli = &phba->sli; 992 struct lpfc_sli_ring *pring; 993 994 lpfc_hba_free_post_buf(phba); 995 lpfc_hba_clean_txcmplq(phba); 996 pring = &psli->ring[LPFC_ELS_RING]; 997 998 /* At this point in time the HBA is either reset or DOA. Either 999 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 1000 * on the lpfc_sgl_list so that it can either be freed if the 1001 * driver is unloading or reposted if the driver is restarting 1002 * the port. 1003 */ 1004 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 1005 /* scsl_buf_list */ 1006 /* abts_sgl_list_lock required because worker thread uses this 1007 * list. 1008 */ 1009 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 1010 list_for_each_entry(sglq_entry, 1011 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 1012 sglq_entry->state = SGL_FREED; 1013 1014 spin_lock(&pring->ring_lock); 1015 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 1016 &phba->sli4_hba.lpfc_sgl_list); 1017 spin_unlock(&pring->ring_lock); 1018 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 1019 /* abts_scsi_buf_list_lock required because worker thread uses this 1020 * list. 1021 */ 1022 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 1023 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 1024 &aborts); 1025 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 1026 spin_unlock_irq(&phba->hbalock); 1027 1028 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 1029 psb->pCmd = NULL; 1030 psb->status = IOSTAT_SUCCESS; 1031 } 1032 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); 1033 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put); 1034 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); 1035 1036 lpfc_sli4_free_sp_events(phba); 1037 return 0; 1038 } 1039 1040 /** 1041 * lpfc_hba_down_post - Wrapper func for hba down post routine 1042 * @phba: pointer to lpfc HBA data structure. 1043 * 1044 * This routine wraps the actual SLI3 or SLI4 routine for performing 1045 * uninitialization after the HBA is reset when bring down the SLI Layer. 1046 * 1047 * Return codes 1048 * 0 - success. 1049 * Any other value - error. 1050 **/ 1051 int 1052 lpfc_hba_down_post(struct lpfc_hba *phba) 1053 { 1054 return (*phba->lpfc_hba_down_post)(phba); 1055 } 1056 1057 /** 1058 * lpfc_hb_timeout - The HBA-timer timeout handler 1059 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1060 * 1061 * This is the HBA-timer timeout handler registered to the lpfc driver. When 1062 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 1063 * work-port-events bitmap and the worker thread is notified. This timeout 1064 * event will be used by the worker thread to invoke the actual timeout 1065 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 1066 * be performed in the timeout handler and the HBA timeout event bit shall 1067 * be cleared by the worker thread after it has taken the event bitmap out. 1068 **/ 1069 static void 1070 lpfc_hb_timeout(unsigned long ptr) 1071 { 1072 struct lpfc_hba *phba; 1073 uint32_t tmo_posted; 1074 unsigned long iflag; 1075 1076 phba = (struct lpfc_hba *)ptr; 1077 1078 /* Check for heart beat timeout conditions */ 1079 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1080 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 1081 if (!tmo_posted) 1082 phba->pport->work_port_events |= WORKER_HB_TMO; 1083 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1084 1085 /* Tell the worker thread there is work to do */ 1086 if (!tmo_posted) 1087 lpfc_worker_wake_up(phba); 1088 return; 1089 } 1090 1091 /** 1092 * lpfc_rrq_timeout - The RRQ-timer timeout handler 1093 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1094 * 1095 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 1096 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 1097 * work-port-events bitmap and the worker thread is notified. This timeout 1098 * event will be used by the worker thread to invoke the actual timeout 1099 * handler routine, lpfc_rrq_handler. Any periodical operations will 1100 * be performed in the timeout handler and the RRQ timeout event bit shall 1101 * be cleared by the worker thread after it has taken the event bitmap out. 1102 **/ 1103 static void 1104 lpfc_rrq_timeout(unsigned long ptr) 1105 { 1106 struct lpfc_hba *phba; 1107 unsigned long iflag; 1108 1109 phba = (struct lpfc_hba *)ptr; 1110 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1111 if (!(phba->pport->load_flag & FC_UNLOADING)) 1112 phba->hba_flag |= HBA_RRQ_ACTIVE; 1113 else 1114 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 1115 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1116 1117 if (!(phba->pport->load_flag & FC_UNLOADING)) 1118 lpfc_worker_wake_up(phba); 1119 } 1120 1121 /** 1122 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 1123 * @phba: pointer to lpfc hba data structure. 1124 * @pmboxq: pointer to the driver internal queue element for mailbox command. 1125 * 1126 * This is the callback function to the lpfc heart-beat mailbox command. 1127 * If configured, the lpfc driver issues the heart-beat mailbox command to 1128 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 1129 * heart-beat mailbox command is issued, the driver shall set up heart-beat 1130 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 1131 * heart-beat outstanding state. Once the mailbox command comes back and 1132 * no error conditions detected, the heart-beat mailbox command timer is 1133 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1134 * state is cleared for the next heart-beat. If the timer expired with the 1135 * heart-beat outstanding state set, the driver will put the HBA offline. 1136 **/ 1137 static void 1138 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1139 { 1140 unsigned long drvr_flag; 1141 1142 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1143 phba->hb_outstanding = 0; 1144 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1145 1146 /* Check and reset heart-beat timer is necessary */ 1147 mempool_free(pmboxq, phba->mbox_mem_pool); 1148 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1149 !(phba->link_state == LPFC_HBA_ERROR) && 1150 !(phba->pport->load_flag & FC_UNLOADING)) 1151 mod_timer(&phba->hb_tmofunc, 1152 jiffies + 1153 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1154 return; 1155 } 1156 1157 /** 1158 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1159 * @phba: pointer to lpfc hba data structure. 1160 * 1161 * This is the actual HBA-timer timeout handler to be invoked by the worker 1162 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1163 * handler performs any periodic operations needed for the device. If such 1164 * periodic event has already been attended to either in the interrupt handler 1165 * or by processing slow-ring or fast-ring events within the HBA-timer 1166 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1167 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1168 * is configured and there is no heart-beat mailbox command outstanding, a 1169 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1170 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1171 * to offline. 1172 **/ 1173 void 1174 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1175 { 1176 struct lpfc_vport **vports; 1177 LPFC_MBOXQ_t *pmboxq; 1178 struct lpfc_dmabuf *buf_ptr; 1179 int retval, i; 1180 struct lpfc_sli *psli = &phba->sli; 1181 LIST_HEAD(completions); 1182 1183 vports = lpfc_create_vport_work_array(phba); 1184 if (vports != NULL) 1185 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1186 lpfc_rcv_seq_check_edtov(vports[i]); 1187 lpfc_destroy_vport_work_array(phba, vports); 1188 1189 if ((phba->link_state == LPFC_HBA_ERROR) || 1190 (phba->pport->load_flag & FC_UNLOADING) || 1191 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1192 return; 1193 1194 spin_lock_irq(&phba->pport->work_port_lock); 1195 1196 if (time_after(phba->last_completion_time + 1197 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL), 1198 jiffies)) { 1199 spin_unlock_irq(&phba->pport->work_port_lock); 1200 if (!phba->hb_outstanding) 1201 mod_timer(&phba->hb_tmofunc, 1202 jiffies + 1203 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1204 else 1205 mod_timer(&phba->hb_tmofunc, 1206 jiffies + 1207 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1208 return; 1209 } 1210 spin_unlock_irq(&phba->pport->work_port_lock); 1211 1212 if (phba->elsbuf_cnt && 1213 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1214 spin_lock_irq(&phba->hbalock); 1215 list_splice_init(&phba->elsbuf, &completions); 1216 phba->elsbuf_cnt = 0; 1217 phba->elsbuf_prev_cnt = 0; 1218 spin_unlock_irq(&phba->hbalock); 1219 1220 while (!list_empty(&completions)) { 1221 list_remove_head(&completions, buf_ptr, 1222 struct lpfc_dmabuf, list); 1223 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1224 kfree(buf_ptr); 1225 } 1226 } 1227 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1228 1229 /* If there is no heart beat outstanding, issue a heartbeat command */ 1230 if (phba->cfg_enable_hba_heartbeat) { 1231 if (!phba->hb_outstanding) { 1232 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1233 (list_empty(&psli->mboxq))) { 1234 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1235 GFP_KERNEL); 1236 if (!pmboxq) { 1237 mod_timer(&phba->hb_tmofunc, 1238 jiffies + 1239 msecs_to_jiffies(1000 * 1240 LPFC_HB_MBOX_INTERVAL)); 1241 return; 1242 } 1243 1244 lpfc_heart_beat(phba, pmboxq); 1245 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1246 pmboxq->vport = phba->pport; 1247 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1248 MBX_NOWAIT); 1249 1250 if (retval != MBX_BUSY && 1251 retval != MBX_SUCCESS) { 1252 mempool_free(pmboxq, 1253 phba->mbox_mem_pool); 1254 mod_timer(&phba->hb_tmofunc, 1255 jiffies + 1256 msecs_to_jiffies(1000 * 1257 LPFC_HB_MBOX_INTERVAL)); 1258 return; 1259 } 1260 phba->skipped_hb = 0; 1261 phba->hb_outstanding = 1; 1262 } else if (time_before_eq(phba->last_completion_time, 1263 phba->skipped_hb)) { 1264 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1265 "2857 Last completion time not " 1266 " updated in %d ms\n", 1267 jiffies_to_msecs(jiffies 1268 - phba->last_completion_time)); 1269 } else 1270 phba->skipped_hb = jiffies; 1271 1272 mod_timer(&phba->hb_tmofunc, 1273 jiffies + 1274 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1275 return; 1276 } else { 1277 /* 1278 * If heart beat timeout called with hb_outstanding set 1279 * we need to give the hb mailbox cmd a chance to 1280 * complete or TMO. 1281 */ 1282 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1283 "0459 Adapter heartbeat still out" 1284 "standing:last compl time was %d ms.\n", 1285 jiffies_to_msecs(jiffies 1286 - phba->last_completion_time)); 1287 mod_timer(&phba->hb_tmofunc, 1288 jiffies + 1289 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1290 } 1291 } 1292 } 1293 1294 /** 1295 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1296 * @phba: pointer to lpfc hba data structure. 1297 * 1298 * This routine is called to bring the HBA offline when HBA hardware error 1299 * other than Port Error 6 has been detected. 1300 **/ 1301 static void 1302 lpfc_offline_eratt(struct lpfc_hba *phba) 1303 { 1304 struct lpfc_sli *psli = &phba->sli; 1305 1306 spin_lock_irq(&phba->hbalock); 1307 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1308 spin_unlock_irq(&phba->hbalock); 1309 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1310 1311 lpfc_offline(phba); 1312 lpfc_reset_barrier(phba); 1313 spin_lock_irq(&phba->hbalock); 1314 lpfc_sli_brdreset(phba); 1315 spin_unlock_irq(&phba->hbalock); 1316 lpfc_hba_down_post(phba); 1317 lpfc_sli_brdready(phba, HS_MBRDY); 1318 lpfc_unblock_mgmt_io(phba); 1319 phba->link_state = LPFC_HBA_ERROR; 1320 return; 1321 } 1322 1323 /** 1324 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1325 * @phba: pointer to lpfc hba data structure. 1326 * 1327 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1328 * other than Port Error 6 has been detected. 1329 **/ 1330 void 1331 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1332 { 1333 spin_lock_irq(&phba->hbalock); 1334 phba->link_state = LPFC_HBA_ERROR; 1335 spin_unlock_irq(&phba->hbalock); 1336 1337 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1338 lpfc_offline(phba); 1339 lpfc_hba_down_post(phba); 1340 lpfc_unblock_mgmt_io(phba); 1341 } 1342 1343 /** 1344 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1345 * @phba: pointer to lpfc hba data structure. 1346 * 1347 * This routine is invoked to handle the deferred HBA hardware error 1348 * conditions. This type of error is indicated by HBA by setting ER1 1349 * and another ER bit in the host status register. The driver will 1350 * wait until the ER1 bit clears before handling the error condition. 1351 **/ 1352 static void 1353 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1354 { 1355 uint32_t old_host_status = phba->work_hs; 1356 struct lpfc_sli *psli = &phba->sli; 1357 1358 /* If the pci channel is offline, ignore possible errors, 1359 * since we cannot communicate with the pci card anyway. 1360 */ 1361 if (pci_channel_offline(phba->pcidev)) { 1362 spin_lock_irq(&phba->hbalock); 1363 phba->hba_flag &= ~DEFER_ERATT; 1364 spin_unlock_irq(&phba->hbalock); 1365 return; 1366 } 1367 1368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1369 "0479 Deferred Adapter Hardware Error " 1370 "Data: x%x x%x x%x\n", 1371 phba->work_hs, 1372 phba->work_status[0], phba->work_status[1]); 1373 1374 spin_lock_irq(&phba->hbalock); 1375 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1376 spin_unlock_irq(&phba->hbalock); 1377 1378 1379 /* 1380 * Firmware stops when it triggred erratt. That could cause the I/Os 1381 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1382 * SCSI layer retry it after re-establishing link. 1383 */ 1384 lpfc_sli_abort_fcp_rings(phba); 1385 1386 /* 1387 * There was a firmware error. Take the hba offline and then 1388 * attempt to restart it. 1389 */ 1390 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 1391 lpfc_offline(phba); 1392 1393 /* Wait for the ER1 bit to clear.*/ 1394 while (phba->work_hs & HS_FFER1) { 1395 msleep(100); 1396 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1397 phba->work_hs = UNPLUG_ERR ; 1398 break; 1399 } 1400 /* If driver is unloading let the worker thread continue */ 1401 if (phba->pport->load_flag & FC_UNLOADING) { 1402 phba->work_hs = 0; 1403 break; 1404 } 1405 } 1406 1407 /* 1408 * This is to ptrotect against a race condition in which 1409 * first write to the host attention register clear the 1410 * host status register. 1411 */ 1412 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1413 phba->work_hs = old_host_status & ~HS_FFER1; 1414 1415 spin_lock_irq(&phba->hbalock); 1416 phba->hba_flag &= ~DEFER_ERATT; 1417 spin_unlock_irq(&phba->hbalock); 1418 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1419 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1420 } 1421 1422 static void 1423 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1424 { 1425 struct lpfc_board_event_header board_event; 1426 struct Scsi_Host *shost; 1427 1428 board_event.event_type = FC_REG_BOARD_EVENT; 1429 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1430 shost = lpfc_shost_from_vport(phba->pport); 1431 fc_host_post_vendor_event(shost, fc_get_event_number(), 1432 sizeof(board_event), 1433 (char *) &board_event, 1434 LPFC_NL_VENDOR_ID); 1435 } 1436 1437 /** 1438 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1439 * @phba: pointer to lpfc hba data structure. 1440 * 1441 * This routine is invoked to handle the following HBA hardware error 1442 * conditions: 1443 * 1 - HBA error attention interrupt 1444 * 2 - DMA ring index out of range 1445 * 3 - Mailbox command came back as unknown 1446 **/ 1447 static void 1448 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1449 { 1450 struct lpfc_vport *vport = phba->pport; 1451 struct lpfc_sli *psli = &phba->sli; 1452 uint32_t event_data; 1453 unsigned long temperature; 1454 struct temp_event temp_event_data; 1455 struct Scsi_Host *shost; 1456 1457 /* If the pci channel is offline, ignore possible errors, 1458 * since we cannot communicate with the pci card anyway. 1459 */ 1460 if (pci_channel_offline(phba->pcidev)) { 1461 spin_lock_irq(&phba->hbalock); 1462 phba->hba_flag &= ~DEFER_ERATT; 1463 spin_unlock_irq(&phba->hbalock); 1464 return; 1465 } 1466 1467 /* If resets are disabled then leave the HBA alone and return */ 1468 if (!phba->cfg_enable_hba_reset) 1469 return; 1470 1471 /* Send an internal error event to mgmt application */ 1472 lpfc_board_errevt_to_mgmt(phba); 1473 1474 if (phba->hba_flag & DEFER_ERATT) 1475 lpfc_handle_deferred_eratt(phba); 1476 1477 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1478 if (phba->work_hs & HS_FFER6) 1479 /* Re-establishing Link */ 1480 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1481 "1301 Re-establishing Link " 1482 "Data: x%x x%x x%x\n", 1483 phba->work_hs, phba->work_status[0], 1484 phba->work_status[1]); 1485 if (phba->work_hs & HS_FFER8) 1486 /* Device Zeroization */ 1487 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1488 "2861 Host Authentication device " 1489 "zeroization Data:x%x x%x x%x\n", 1490 phba->work_hs, phba->work_status[0], 1491 phba->work_status[1]); 1492 1493 spin_lock_irq(&phba->hbalock); 1494 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1495 spin_unlock_irq(&phba->hbalock); 1496 1497 /* 1498 * Firmware stops when it triggled erratt with HS_FFER6. 1499 * That could cause the I/Os dropped by the firmware. 1500 * Error iocb (I/O) on txcmplq and let the SCSI layer 1501 * retry it after re-establishing link. 1502 */ 1503 lpfc_sli_abort_fcp_rings(phba); 1504 1505 /* 1506 * There was a firmware error. Take the hba offline and then 1507 * attempt to restart it. 1508 */ 1509 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1510 lpfc_offline(phba); 1511 lpfc_sli_brdrestart(phba); 1512 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1513 lpfc_unblock_mgmt_io(phba); 1514 return; 1515 } 1516 lpfc_unblock_mgmt_io(phba); 1517 } else if (phba->work_hs & HS_CRIT_TEMP) { 1518 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1519 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1520 temp_event_data.event_code = LPFC_CRIT_TEMP; 1521 temp_event_data.data = (uint32_t)temperature; 1522 1523 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1524 "0406 Adapter maximum temperature exceeded " 1525 "(%ld), taking this port offline " 1526 "Data: x%x x%x x%x\n", 1527 temperature, phba->work_hs, 1528 phba->work_status[0], phba->work_status[1]); 1529 1530 shost = lpfc_shost_from_vport(phba->pport); 1531 fc_host_post_vendor_event(shost, fc_get_event_number(), 1532 sizeof(temp_event_data), 1533 (char *) &temp_event_data, 1534 SCSI_NL_VID_TYPE_PCI 1535 | PCI_VENDOR_ID_EMULEX); 1536 1537 spin_lock_irq(&phba->hbalock); 1538 phba->over_temp_state = HBA_OVER_TEMP; 1539 spin_unlock_irq(&phba->hbalock); 1540 lpfc_offline_eratt(phba); 1541 1542 } else { 1543 /* The if clause above forces this code path when the status 1544 * failure is a value other than FFER6. Do not call the offline 1545 * twice. This is the adapter hardware error path. 1546 */ 1547 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1548 "0457 Adapter Hardware Error " 1549 "Data: x%x x%x x%x\n", 1550 phba->work_hs, 1551 phba->work_status[0], phba->work_status[1]); 1552 1553 event_data = FC_REG_DUMP_EVENT; 1554 shost = lpfc_shost_from_vport(vport); 1555 fc_host_post_vendor_event(shost, fc_get_event_number(), 1556 sizeof(event_data), (char *) &event_data, 1557 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1558 1559 lpfc_offline_eratt(phba); 1560 } 1561 return; 1562 } 1563 1564 /** 1565 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg 1566 * @phba: pointer to lpfc hba data structure. 1567 * @mbx_action: flag for mailbox shutdown action. 1568 * 1569 * This routine is invoked to perform an SLI4 port PCI function reset in 1570 * response to port status register polling attention. It waits for port 1571 * status register (ERR, RDY, RN) bits before proceeding with function reset. 1572 * During this process, interrupt vectors are freed and later requested 1573 * for handling possible port resource change. 1574 **/ 1575 static int 1576 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action, 1577 bool en_rn_msg) 1578 { 1579 int rc; 1580 uint32_t intr_mode; 1581 1582 /* 1583 * On error status condition, driver need to wait for port 1584 * ready before performing reset. 1585 */ 1586 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1587 if (!rc) { 1588 /* need reset: attempt for port recovery */ 1589 if (en_rn_msg) 1590 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1591 "2887 Reset Needed: Attempting Port " 1592 "Recovery...\n"); 1593 lpfc_offline_prep(phba, mbx_action); 1594 lpfc_offline(phba); 1595 /* release interrupt for possible resource change */ 1596 lpfc_sli4_disable_intr(phba); 1597 lpfc_sli_brdrestart(phba); 1598 /* request and enable interrupt */ 1599 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 1600 if (intr_mode == LPFC_INTR_ERROR) { 1601 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1602 "3175 Failed to enable interrupt\n"); 1603 return -EIO; 1604 } else { 1605 phba->intr_mode = intr_mode; 1606 } 1607 rc = lpfc_online(phba); 1608 if (rc == 0) 1609 lpfc_unblock_mgmt_io(phba); 1610 } 1611 return rc; 1612 } 1613 1614 /** 1615 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1616 * @phba: pointer to lpfc hba data structure. 1617 * 1618 * This routine is invoked to handle the SLI4 HBA hardware error attention 1619 * conditions. 1620 **/ 1621 static void 1622 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1623 { 1624 struct lpfc_vport *vport = phba->pport; 1625 uint32_t event_data; 1626 struct Scsi_Host *shost; 1627 uint32_t if_type; 1628 struct lpfc_register portstat_reg = {0}; 1629 uint32_t reg_err1, reg_err2; 1630 uint32_t uerrlo_reg, uemasklo_reg; 1631 uint32_t pci_rd_rc1, pci_rd_rc2; 1632 bool en_rn_msg = true; 1633 struct temp_event temp_event_data; 1634 int rc; 1635 1636 /* If the pci channel is offline, ignore possible errors, since 1637 * we cannot communicate with the pci card anyway. 1638 */ 1639 if (pci_channel_offline(phba->pcidev)) 1640 return; 1641 1642 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1643 switch (if_type) { 1644 case LPFC_SLI_INTF_IF_TYPE_0: 1645 pci_rd_rc1 = lpfc_readl( 1646 phba->sli4_hba.u.if_type0.UERRLOregaddr, 1647 &uerrlo_reg); 1648 pci_rd_rc2 = lpfc_readl( 1649 phba->sli4_hba.u.if_type0.UEMASKLOregaddr, 1650 &uemasklo_reg); 1651 /* consider PCI bus read error as pci_channel_offline */ 1652 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) 1653 return; 1654 lpfc_sli4_offline_eratt(phba); 1655 break; 1656 1657 case LPFC_SLI_INTF_IF_TYPE_2: 1658 pci_rd_rc1 = lpfc_readl( 1659 phba->sli4_hba.u.if_type2.STATUSregaddr, 1660 &portstat_reg.word0); 1661 /* consider PCI bus read error as pci_channel_offline */ 1662 if (pci_rd_rc1 == -EIO) { 1663 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1664 "3151 PCI bus read access failure: x%x\n", 1665 readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); 1666 return; 1667 } 1668 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); 1669 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); 1670 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1671 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1672 "2889 Port Overtemperature event, " 1673 "taking port offline Data: x%x x%x\n", 1674 reg_err1, reg_err2); 1675 1676 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1677 temp_event_data.event_code = LPFC_CRIT_TEMP; 1678 temp_event_data.data = 0xFFFFFFFF; 1679 1680 shost = lpfc_shost_from_vport(phba->pport); 1681 fc_host_post_vendor_event(shost, fc_get_event_number(), 1682 sizeof(temp_event_data), 1683 (char *)&temp_event_data, 1684 SCSI_NL_VID_TYPE_PCI 1685 | PCI_VENDOR_ID_EMULEX); 1686 1687 spin_lock_irq(&phba->hbalock); 1688 phba->over_temp_state = HBA_OVER_TEMP; 1689 spin_unlock_irq(&phba->hbalock); 1690 lpfc_sli4_offline_eratt(phba); 1691 return; 1692 } 1693 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1694 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) { 1695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1696 "3143 Port Down: Firmware Update " 1697 "Detected\n"); 1698 en_rn_msg = false; 1699 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1700 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1701 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1702 "3144 Port Down: Debug Dump\n"); 1703 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1704 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) 1705 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1706 "3145 Port Down: Provisioning\n"); 1707 1708 /* If resets are disabled then leave the HBA alone and return */ 1709 if (!phba->cfg_enable_hba_reset) 1710 return; 1711 1712 /* Check port status register for function reset */ 1713 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT, 1714 en_rn_msg); 1715 if (rc == 0) { 1716 /* don't report event on forced debug dump */ 1717 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1718 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1719 return; 1720 else 1721 break; 1722 } 1723 /* fall through for not able to recover */ 1724 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1725 "3152 Unrecoverable error, bring the port " 1726 "offline\n"); 1727 lpfc_sli4_offline_eratt(phba); 1728 break; 1729 case LPFC_SLI_INTF_IF_TYPE_1: 1730 default: 1731 break; 1732 } 1733 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1734 "3123 Report dump event to upper layer\n"); 1735 /* Send an internal error event to mgmt application */ 1736 lpfc_board_errevt_to_mgmt(phba); 1737 1738 event_data = FC_REG_DUMP_EVENT; 1739 shost = lpfc_shost_from_vport(vport); 1740 fc_host_post_vendor_event(shost, fc_get_event_number(), 1741 sizeof(event_data), (char *) &event_data, 1742 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1743 } 1744 1745 /** 1746 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1747 * @phba: pointer to lpfc HBA data structure. 1748 * 1749 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1750 * routine from the API jump table function pointer from the lpfc_hba struct. 1751 * 1752 * Return codes 1753 * 0 - success. 1754 * Any other value - error. 1755 **/ 1756 void 1757 lpfc_handle_eratt(struct lpfc_hba *phba) 1758 { 1759 (*phba->lpfc_handle_eratt)(phba); 1760 } 1761 1762 /** 1763 * lpfc_handle_latt - The HBA link event handler 1764 * @phba: pointer to lpfc hba data structure. 1765 * 1766 * This routine is invoked from the worker thread to handle a HBA host 1767 * attention link event. 1768 **/ 1769 void 1770 lpfc_handle_latt(struct lpfc_hba *phba) 1771 { 1772 struct lpfc_vport *vport = phba->pport; 1773 struct lpfc_sli *psli = &phba->sli; 1774 LPFC_MBOXQ_t *pmb; 1775 volatile uint32_t control; 1776 struct lpfc_dmabuf *mp; 1777 int rc = 0; 1778 1779 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1780 if (!pmb) { 1781 rc = 1; 1782 goto lpfc_handle_latt_err_exit; 1783 } 1784 1785 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1786 if (!mp) { 1787 rc = 2; 1788 goto lpfc_handle_latt_free_pmb; 1789 } 1790 1791 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1792 if (!mp->virt) { 1793 rc = 3; 1794 goto lpfc_handle_latt_free_mp; 1795 } 1796 1797 /* Cleanup any outstanding ELS commands */ 1798 lpfc_els_flush_all_cmd(phba); 1799 1800 psli->slistat.link_event++; 1801 lpfc_read_topology(phba, pmb, mp); 1802 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1803 pmb->vport = vport; 1804 /* Block ELS IOCBs until we have processed this mbox command */ 1805 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1806 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1807 if (rc == MBX_NOT_FINISHED) { 1808 rc = 4; 1809 goto lpfc_handle_latt_free_mbuf; 1810 } 1811 1812 /* Clear Link Attention in HA REG */ 1813 spin_lock_irq(&phba->hbalock); 1814 writel(HA_LATT, phba->HAregaddr); 1815 readl(phba->HAregaddr); /* flush */ 1816 spin_unlock_irq(&phba->hbalock); 1817 1818 return; 1819 1820 lpfc_handle_latt_free_mbuf: 1821 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1822 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1823 lpfc_handle_latt_free_mp: 1824 kfree(mp); 1825 lpfc_handle_latt_free_pmb: 1826 mempool_free(pmb, phba->mbox_mem_pool); 1827 lpfc_handle_latt_err_exit: 1828 /* Enable Link attention interrupts */ 1829 spin_lock_irq(&phba->hbalock); 1830 psli->sli_flag |= LPFC_PROCESS_LA; 1831 control = readl(phba->HCregaddr); 1832 control |= HC_LAINT_ENA; 1833 writel(control, phba->HCregaddr); 1834 readl(phba->HCregaddr); /* flush */ 1835 1836 /* Clear Link Attention in HA REG */ 1837 writel(HA_LATT, phba->HAregaddr); 1838 readl(phba->HAregaddr); /* flush */ 1839 spin_unlock_irq(&phba->hbalock); 1840 lpfc_linkdown(phba); 1841 phba->link_state = LPFC_HBA_ERROR; 1842 1843 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1844 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1845 1846 return; 1847 } 1848 1849 /** 1850 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1851 * @phba: pointer to lpfc hba data structure. 1852 * @vpd: pointer to the vital product data. 1853 * @len: length of the vital product data in bytes. 1854 * 1855 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1856 * an array of characters. In this routine, the ModelName, ProgramType, and 1857 * ModelDesc, etc. fields of the phba data structure will be populated. 1858 * 1859 * Return codes 1860 * 0 - pointer to the VPD passed in is NULL 1861 * 1 - success 1862 **/ 1863 int 1864 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1865 { 1866 uint8_t lenlo, lenhi; 1867 int Length; 1868 int i, j; 1869 int finished = 0; 1870 int index = 0; 1871 1872 if (!vpd) 1873 return 0; 1874 1875 /* Vital Product */ 1876 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1877 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1878 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1879 (uint32_t) vpd[3]); 1880 while (!finished && (index < (len - 4))) { 1881 switch (vpd[index]) { 1882 case 0x82: 1883 case 0x91: 1884 index += 1; 1885 lenlo = vpd[index]; 1886 index += 1; 1887 lenhi = vpd[index]; 1888 index += 1; 1889 i = ((((unsigned short)lenhi) << 8) + lenlo); 1890 index += i; 1891 break; 1892 case 0x90: 1893 index += 1; 1894 lenlo = vpd[index]; 1895 index += 1; 1896 lenhi = vpd[index]; 1897 index += 1; 1898 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1899 if (Length > len - index) 1900 Length = len - index; 1901 while (Length > 0) { 1902 /* Look for Serial Number */ 1903 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1904 index += 2; 1905 i = vpd[index]; 1906 index += 1; 1907 j = 0; 1908 Length -= (3+i); 1909 while(i--) { 1910 phba->SerialNumber[j++] = vpd[index++]; 1911 if (j == 31) 1912 break; 1913 } 1914 phba->SerialNumber[j] = 0; 1915 continue; 1916 } 1917 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1918 phba->vpd_flag |= VPD_MODEL_DESC; 1919 index += 2; 1920 i = vpd[index]; 1921 index += 1; 1922 j = 0; 1923 Length -= (3+i); 1924 while(i--) { 1925 phba->ModelDesc[j++] = vpd[index++]; 1926 if (j == 255) 1927 break; 1928 } 1929 phba->ModelDesc[j] = 0; 1930 continue; 1931 } 1932 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1933 phba->vpd_flag |= VPD_MODEL_NAME; 1934 index += 2; 1935 i = vpd[index]; 1936 index += 1; 1937 j = 0; 1938 Length -= (3+i); 1939 while(i--) { 1940 phba->ModelName[j++] = vpd[index++]; 1941 if (j == 79) 1942 break; 1943 } 1944 phba->ModelName[j] = 0; 1945 continue; 1946 } 1947 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1948 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1949 index += 2; 1950 i = vpd[index]; 1951 index += 1; 1952 j = 0; 1953 Length -= (3+i); 1954 while(i--) { 1955 phba->ProgramType[j++] = vpd[index++]; 1956 if (j == 255) 1957 break; 1958 } 1959 phba->ProgramType[j] = 0; 1960 continue; 1961 } 1962 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1963 phba->vpd_flag |= VPD_PORT; 1964 index += 2; 1965 i = vpd[index]; 1966 index += 1; 1967 j = 0; 1968 Length -= (3+i); 1969 while(i--) { 1970 if ((phba->sli_rev == LPFC_SLI_REV4) && 1971 (phba->sli4_hba.pport_name_sta == 1972 LPFC_SLI4_PPNAME_GET)) { 1973 j++; 1974 index++; 1975 } else 1976 phba->Port[j++] = vpd[index++]; 1977 if (j == 19) 1978 break; 1979 } 1980 if ((phba->sli_rev != LPFC_SLI_REV4) || 1981 (phba->sli4_hba.pport_name_sta == 1982 LPFC_SLI4_PPNAME_NON)) 1983 phba->Port[j] = 0; 1984 continue; 1985 } 1986 else { 1987 index += 2; 1988 i = vpd[index]; 1989 index += 1; 1990 index += i; 1991 Length -= (3 + i); 1992 } 1993 } 1994 finished = 0; 1995 break; 1996 case 0x78: 1997 finished = 1; 1998 break; 1999 default: 2000 index ++; 2001 break; 2002 } 2003 } 2004 2005 return(1); 2006 } 2007 2008 /** 2009 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 2010 * @phba: pointer to lpfc hba data structure. 2011 * @mdp: pointer to the data structure to hold the derived model name. 2012 * @descp: pointer to the data structure to hold the derived description. 2013 * 2014 * This routine retrieves HBA's description based on its registered PCI device 2015 * ID. The @descp passed into this function points to an array of 256 chars. It 2016 * shall be returned with the model name, maximum speed, and the host bus type. 2017 * The @mdp passed into this function points to an array of 80 chars. When the 2018 * function returns, the @mdp will be filled with the model name. 2019 **/ 2020 static void 2021 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 2022 { 2023 lpfc_vpd_t *vp; 2024 uint16_t dev_id = phba->pcidev->device; 2025 int max_speed; 2026 int GE = 0; 2027 int oneConnect = 0; /* default is not a oneConnect */ 2028 struct { 2029 char *name; 2030 char *bus; 2031 char *function; 2032 } m = {"<Unknown>", "", ""}; 2033 2034 if (mdp && mdp[0] != '\0' 2035 && descp && descp[0] != '\0') 2036 return; 2037 2038 if (phba->lmt & LMT_16Gb) 2039 max_speed = 16; 2040 else if (phba->lmt & LMT_10Gb) 2041 max_speed = 10; 2042 else if (phba->lmt & LMT_8Gb) 2043 max_speed = 8; 2044 else if (phba->lmt & LMT_4Gb) 2045 max_speed = 4; 2046 else if (phba->lmt & LMT_2Gb) 2047 max_speed = 2; 2048 else if (phba->lmt & LMT_1Gb) 2049 max_speed = 1; 2050 else 2051 max_speed = 0; 2052 2053 vp = &phba->vpd; 2054 2055 switch (dev_id) { 2056 case PCI_DEVICE_ID_FIREFLY: 2057 m = (typeof(m)){"LP6000", "PCI", 2058 "Obsolete, Unsupported Fibre Channel Adapter"}; 2059 break; 2060 case PCI_DEVICE_ID_SUPERFLY: 2061 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 2062 m = (typeof(m)){"LP7000", "PCI", ""}; 2063 else 2064 m = (typeof(m)){"LP7000E", "PCI", ""}; 2065 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2066 break; 2067 case PCI_DEVICE_ID_DRAGONFLY: 2068 m = (typeof(m)){"LP8000", "PCI", 2069 "Obsolete, Unsupported Fibre Channel Adapter"}; 2070 break; 2071 case PCI_DEVICE_ID_CENTAUR: 2072 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 2073 m = (typeof(m)){"LP9002", "PCI", ""}; 2074 else 2075 m = (typeof(m)){"LP9000", "PCI", ""}; 2076 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2077 break; 2078 case PCI_DEVICE_ID_RFLY: 2079 m = (typeof(m)){"LP952", "PCI", 2080 "Obsolete, Unsupported Fibre Channel Adapter"}; 2081 break; 2082 case PCI_DEVICE_ID_PEGASUS: 2083 m = (typeof(m)){"LP9802", "PCI-X", 2084 "Obsolete, Unsupported Fibre Channel Adapter"}; 2085 break; 2086 case PCI_DEVICE_ID_THOR: 2087 m = (typeof(m)){"LP10000", "PCI-X", 2088 "Obsolete, Unsupported Fibre Channel Adapter"}; 2089 break; 2090 case PCI_DEVICE_ID_VIPER: 2091 m = (typeof(m)){"LPX1000", "PCI-X", 2092 "Obsolete, Unsupported Fibre Channel Adapter"}; 2093 break; 2094 case PCI_DEVICE_ID_PFLY: 2095 m = (typeof(m)){"LP982", "PCI-X", 2096 "Obsolete, Unsupported Fibre Channel Adapter"}; 2097 break; 2098 case PCI_DEVICE_ID_TFLY: 2099 m = (typeof(m)){"LP1050", "PCI-X", 2100 "Obsolete, Unsupported Fibre Channel Adapter"}; 2101 break; 2102 case PCI_DEVICE_ID_HELIOS: 2103 m = (typeof(m)){"LP11000", "PCI-X2", 2104 "Obsolete, Unsupported Fibre Channel Adapter"}; 2105 break; 2106 case PCI_DEVICE_ID_HELIOS_SCSP: 2107 m = (typeof(m)){"LP11000-SP", "PCI-X2", 2108 "Obsolete, Unsupported Fibre Channel Adapter"}; 2109 break; 2110 case PCI_DEVICE_ID_HELIOS_DCSP: 2111 m = (typeof(m)){"LP11002-SP", "PCI-X2", 2112 "Obsolete, Unsupported Fibre Channel Adapter"}; 2113 break; 2114 case PCI_DEVICE_ID_NEPTUNE: 2115 m = (typeof(m)){"LPe1000", "PCIe", 2116 "Obsolete, Unsupported Fibre Channel Adapter"}; 2117 break; 2118 case PCI_DEVICE_ID_NEPTUNE_SCSP: 2119 m = (typeof(m)){"LPe1000-SP", "PCIe", 2120 "Obsolete, Unsupported Fibre Channel Adapter"}; 2121 break; 2122 case PCI_DEVICE_ID_NEPTUNE_DCSP: 2123 m = (typeof(m)){"LPe1002-SP", "PCIe", 2124 "Obsolete, Unsupported Fibre Channel Adapter"}; 2125 break; 2126 case PCI_DEVICE_ID_BMID: 2127 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 2128 break; 2129 case PCI_DEVICE_ID_BSMB: 2130 m = (typeof(m)){"LP111", "PCI-X2", 2131 "Obsolete, Unsupported Fibre Channel Adapter"}; 2132 break; 2133 case PCI_DEVICE_ID_ZEPHYR: 2134 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2135 break; 2136 case PCI_DEVICE_ID_ZEPHYR_SCSP: 2137 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2138 break; 2139 case PCI_DEVICE_ID_ZEPHYR_DCSP: 2140 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 2141 GE = 1; 2142 break; 2143 case PCI_DEVICE_ID_ZMID: 2144 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 2145 break; 2146 case PCI_DEVICE_ID_ZSMB: 2147 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 2148 break; 2149 case PCI_DEVICE_ID_LP101: 2150 m = (typeof(m)){"LP101", "PCI-X", 2151 "Obsolete, Unsupported Fibre Channel Adapter"}; 2152 break; 2153 case PCI_DEVICE_ID_LP10000S: 2154 m = (typeof(m)){"LP10000-S", "PCI", 2155 "Obsolete, Unsupported Fibre Channel Adapter"}; 2156 break; 2157 case PCI_DEVICE_ID_LP11000S: 2158 m = (typeof(m)){"LP11000-S", "PCI-X2", 2159 "Obsolete, Unsupported Fibre Channel Adapter"}; 2160 break; 2161 case PCI_DEVICE_ID_LPE11000S: 2162 m = (typeof(m)){"LPe11000-S", "PCIe", 2163 "Obsolete, Unsupported Fibre Channel Adapter"}; 2164 break; 2165 case PCI_DEVICE_ID_SAT: 2166 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 2167 break; 2168 case PCI_DEVICE_ID_SAT_MID: 2169 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 2170 break; 2171 case PCI_DEVICE_ID_SAT_SMB: 2172 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 2173 break; 2174 case PCI_DEVICE_ID_SAT_DCSP: 2175 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 2176 break; 2177 case PCI_DEVICE_ID_SAT_SCSP: 2178 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 2179 break; 2180 case PCI_DEVICE_ID_SAT_S: 2181 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 2182 break; 2183 case PCI_DEVICE_ID_HORNET: 2184 m = (typeof(m)){"LP21000", "PCIe", 2185 "Obsolete, Unsupported FCoE Adapter"}; 2186 GE = 1; 2187 break; 2188 case PCI_DEVICE_ID_PROTEUS_VF: 2189 m = (typeof(m)){"LPev12000", "PCIe IOV", 2190 "Obsolete, Unsupported Fibre Channel Adapter"}; 2191 break; 2192 case PCI_DEVICE_ID_PROTEUS_PF: 2193 m = (typeof(m)){"LPev12000", "PCIe IOV", 2194 "Obsolete, Unsupported Fibre Channel Adapter"}; 2195 break; 2196 case PCI_DEVICE_ID_PROTEUS_S: 2197 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 2198 "Obsolete, Unsupported Fibre Channel Adapter"}; 2199 break; 2200 case PCI_DEVICE_ID_TIGERSHARK: 2201 oneConnect = 1; 2202 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2203 break; 2204 case PCI_DEVICE_ID_TOMCAT: 2205 oneConnect = 1; 2206 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2207 break; 2208 case PCI_DEVICE_ID_FALCON: 2209 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2210 "EmulexSecure Fibre"}; 2211 break; 2212 case PCI_DEVICE_ID_BALIUS: 2213 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2214 "Obsolete, Unsupported Fibre Channel Adapter"}; 2215 break; 2216 case PCI_DEVICE_ID_LANCER_FC: 2217 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2218 break; 2219 case PCI_DEVICE_ID_LANCER_FC_VF: 2220 m = (typeof(m)){"LPe16000", "PCIe", 2221 "Obsolete, Unsupported Fibre Channel Adapter"}; 2222 break; 2223 case PCI_DEVICE_ID_LANCER_FCOE: 2224 oneConnect = 1; 2225 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2226 break; 2227 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2228 oneConnect = 1; 2229 m = (typeof(m)){"OCe15100", "PCIe", 2230 "Obsolete, Unsupported FCoE"}; 2231 break; 2232 case PCI_DEVICE_ID_SKYHAWK: 2233 case PCI_DEVICE_ID_SKYHAWK_VF: 2234 oneConnect = 1; 2235 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"}; 2236 break; 2237 default: 2238 m = (typeof(m)){"Unknown", "", ""}; 2239 break; 2240 } 2241 2242 if (mdp && mdp[0] == '\0') 2243 snprintf(mdp, 79,"%s", m.name); 2244 /* 2245 * oneConnect hba requires special processing, they are all initiators 2246 * and we put the port number on the end 2247 */ 2248 if (descp && descp[0] == '\0') { 2249 if (oneConnect) 2250 snprintf(descp, 255, 2251 "Emulex OneConnect %s, %s Initiator %s", 2252 m.name, m.function, 2253 phba->Port); 2254 else if (max_speed == 0) 2255 snprintf(descp, 255, 2256 "Emulex %s %s %s ", 2257 m.name, m.bus, m.function); 2258 else 2259 snprintf(descp, 255, 2260 "Emulex %s %d%s %s %s", 2261 m.name, max_speed, (GE) ? "GE" : "Gb", 2262 m.bus, m.function); 2263 } 2264 } 2265 2266 /** 2267 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2268 * @phba: pointer to lpfc hba data structure. 2269 * @pring: pointer to a IOCB ring. 2270 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2271 * 2272 * This routine posts a given number of IOCBs with the associated DMA buffer 2273 * descriptors specified by the cnt argument to the given IOCB ring. 2274 * 2275 * Return codes 2276 * The number of IOCBs NOT able to be posted to the IOCB ring. 2277 **/ 2278 int 2279 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2280 { 2281 IOCB_t *icmd; 2282 struct lpfc_iocbq *iocb; 2283 struct lpfc_dmabuf *mp1, *mp2; 2284 2285 cnt += pring->missbufcnt; 2286 2287 /* While there are buffers to post */ 2288 while (cnt > 0) { 2289 /* Allocate buffer for command iocb */ 2290 iocb = lpfc_sli_get_iocbq(phba); 2291 if (iocb == NULL) { 2292 pring->missbufcnt = cnt; 2293 return cnt; 2294 } 2295 icmd = &iocb->iocb; 2296 2297 /* 2 buffers can be posted per command */ 2298 /* Allocate buffer to post */ 2299 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2300 if (mp1) 2301 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2302 if (!mp1 || !mp1->virt) { 2303 kfree(mp1); 2304 lpfc_sli_release_iocbq(phba, iocb); 2305 pring->missbufcnt = cnt; 2306 return cnt; 2307 } 2308 2309 INIT_LIST_HEAD(&mp1->list); 2310 /* Allocate buffer to post */ 2311 if (cnt > 1) { 2312 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2313 if (mp2) 2314 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2315 &mp2->phys); 2316 if (!mp2 || !mp2->virt) { 2317 kfree(mp2); 2318 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2319 kfree(mp1); 2320 lpfc_sli_release_iocbq(phba, iocb); 2321 pring->missbufcnt = cnt; 2322 return cnt; 2323 } 2324 2325 INIT_LIST_HEAD(&mp2->list); 2326 } else { 2327 mp2 = NULL; 2328 } 2329 2330 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2331 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2332 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2333 icmd->ulpBdeCount = 1; 2334 cnt--; 2335 if (mp2) { 2336 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2337 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2338 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2339 cnt--; 2340 icmd->ulpBdeCount = 2; 2341 } 2342 2343 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2344 icmd->ulpLe = 1; 2345 2346 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2347 IOCB_ERROR) { 2348 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2349 kfree(mp1); 2350 cnt++; 2351 if (mp2) { 2352 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2353 kfree(mp2); 2354 cnt++; 2355 } 2356 lpfc_sli_release_iocbq(phba, iocb); 2357 pring->missbufcnt = cnt; 2358 return cnt; 2359 } 2360 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2361 if (mp2) 2362 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2363 } 2364 pring->missbufcnt = 0; 2365 return 0; 2366 } 2367 2368 /** 2369 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2370 * @phba: pointer to lpfc hba data structure. 2371 * 2372 * This routine posts initial receive IOCB buffers to the ELS ring. The 2373 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2374 * set to 64 IOCBs. 2375 * 2376 * Return codes 2377 * 0 - success (currently always success) 2378 **/ 2379 static int 2380 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2381 { 2382 struct lpfc_sli *psli = &phba->sli; 2383 2384 /* Ring 0, ELS / CT buffers */ 2385 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2386 /* Ring 2 - FCP no buffers needed */ 2387 2388 return 0; 2389 } 2390 2391 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2392 2393 /** 2394 * lpfc_sha_init - Set up initial array of hash table entries 2395 * @HashResultPointer: pointer to an array as hash table. 2396 * 2397 * This routine sets up the initial values to the array of hash table entries 2398 * for the LC HBAs. 2399 **/ 2400 static void 2401 lpfc_sha_init(uint32_t * HashResultPointer) 2402 { 2403 HashResultPointer[0] = 0x67452301; 2404 HashResultPointer[1] = 0xEFCDAB89; 2405 HashResultPointer[2] = 0x98BADCFE; 2406 HashResultPointer[3] = 0x10325476; 2407 HashResultPointer[4] = 0xC3D2E1F0; 2408 } 2409 2410 /** 2411 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2412 * @HashResultPointer: pointer to an initial/result hash table. 2413 * @HashWorkingPointer: pointer to an working hash table. 2414 * 2415 * This routine iterates an initial hash table pointed by @HashResultPointer 2416 * with the values from the working hash table pointeed by @HashWorkingPointer. 2417 * The results are putting back to the initial hash table, returned through 2418 * the @HashResultPointer as the result hash table. 2419 **/ 2420 static void 2421 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2422 { 2423 int t; 2424 uint32_t TEMP; 2425 uint32_t A, B, C, D, E; 2426 t = 16; 2427 do { 2428 HashWorkingPointer[t] = 2429 S(1, 2430 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2431 8] ^ 2432 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2433 } while (++t <= 79); 2434 t = 0; 2435 A = HashResultPointer[0]; 2436 B = HashResultPointer[1]; 2437 C = HashResultPointer[2]; 2438 D = HashResultPointer[3]; 2439 E = HashResultPointer[4]; 2440 2441 do { 2442 if (t < 20) { 2443 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2444 } else if (t < 40) { 2445 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2446 } else if (t < 60) { 2447 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2448 } else { 2449 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2450 } 2451 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2452 E = D; 2453 D = C; 2454 C = S(30, B); 2455 B = A; 2456 A = TEMP; 2457 } while (++t <= 79); 2458 2459 HashResultPointer[0] += A; 2460 HashResultPointer[1] += B; 2461 HashResultPointer[2] += C; 2462 HashResultPointer[3] += D; 2463 HashResultPointer[4] += E; 2464 2465 } 2466 2467 /** 2468 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2469 * @RandomChallenge: pointer to the entry of host challenge random number array. 2470 * @HashWorking: pointer to the entry of the working hash array. 2471 * 2472 * This routine calculates the working hash array referred by @HashWorking 2473 * from the challenge random numbers associated with the host, referred by 2474 * @RandomChallenge. The result is put into the entry of the working hash 2475 * array and returned by reference through @HashWorking. 2476 **/ 2477 static void 2478 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2479 { 2480 *HashWorking = (*RandomChallenge ^ *HashWorking); 2481 } 2482 2483 /** 2484 * lpfc_hba_init - Perform special handling for LC HBA initialization 2485 * @phba: pointer to lpfc hba data structure. 2486 * @hbainit: pointer to an array of unsigned 32-bit integers. 2487 * 2488 * This routine performs the special handling for LC HBA initialization. 2489 **/ 2490 void 2491 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2492 { 2493 int t; 2494 uint32_t *HashWorking; 2495 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2496 2497 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2498 if (!HashWorking) 2499 return; 2500 2501 HashWorking[0] = HashWorking[78] = *pwwnn++; 2502 HashWorking[1] = HashWorking[79] = *pwwnn; 2503 2504 for (t = 0; t < 7; t++) 2505 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2506 2507 lpfc_sha_init(hbainit); 2508 lpfc_sha_iterate(hbainit, HashWorking); 2509 kfree(HashWorking); 2510 } 2511 2512 /** 2513 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2514 * @vport: pointer to a virtual N_Port data structure. 2515 * 2516 * This routine performs the necessary cleanups before deleting the @vport. 2517 * It invokes the discovery state machine to perform necessary state 2518 * transitions and to release the ndlps associated with the @vport. Note, 2519 * the physical port is treated as @vport 0. 2520 **/ 2521 void 2522 lpfc_cleanup(struct lpfc_vport *vport) 2523 { 2524 struct lpfc_hba *phba = vport->phba; 2525 struct lpfc_nodelist *ndlp, *next_ndlp; 2526 int i = 0; 2527 2528 if (phba->link_state > LPFC_LINK_DOWN) 2529 lpfc_port_link_failure(vport); 2530 2531 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2532 if (!NLP_CHK_NODE_ACT(ndlp)) { 2533 ndlp = lpfc_enable_node(vport, ndlp, 2534 NLP_STE_UNUSED_NODE); 2535 if (!ndlp) 2536 continue; 2537 spin_lock_irq(&phba->ndlp_lock); 2538 NLP_SET_FREE_REQ(ndlp); 2539 spin_unlock_irq(&phba->ndlp_lock); 2540 /* Trigger the release of the ndlp memory */ 2541 lpfc_nlp_put(ndlp); 2542 continue; 2543 } 2544 spin_lock_irq(&phba->ndlp_lock); 2545 if (NLP_CHK_FREE_REQ(ndlp)) { 2546 /* The ndlp should not be in memory free mode already */ 2547 spin_unlock_irq(&phba->ndlp_lock); 2548 continue; 2549 } else 2550 /* Indicate request for freeing ndlp memory */ 2551 NLP_SET_FREE_REQ(ndlp); 2552 spin_unlock_irq(&phba->ndlp_lock); 2553 2554 if (vport->port_type != LPFC_PHYSICAL_PORT && 2555 ndlp->nlp_DID == Fabric_DID) { 2556 /* Just free up ndlp with Fabric_DID for vports */ 2557 lpfc_nlp_put(ndlp); 2558 continue; 2559 } 2560 2561 /* take care of nodes in unused state before the state 2562 * machine taking action. 2563 */ 2564 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 2565 lpfc_nlp_put(ndlp); 2566 continue; 2567 } 2568 2569 if (ndlp->nlp_type & NLP_FABRIC) 2570 lpfc_disc_state_machine(vport, ndlp, NULL, 2571 NLP_EVT_DEVICE_RECOVERY); 2572 2573 lpfc_disc_state_machine(vport, ndlp, NULL, 2574 NLP_EVT_DEVICE_RM); 2575 } 2576 2577 /* At this point, ALL ndlp's should be gone 2578 * because of the previous NLP_EVT_DEVICE_RM. 2579 * Lets wait for this to happen, if needed. 2580 */ 2581 while (!list_empty(&vport->fc_nodes)) { 2582 if (i++ > 3000) { 2583 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2584 "0233 Nodelist not empty\n"); 2585 list_for_each_entry_safe(ndlp, next_ndlp, 2586 &vport->fc_nodes, nlp_listp) { 2587 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2588 LOG_NODE, 2589 "0282 did:x%x ndlp:x%p " 2590 "usgmap:x%x refcnt:%d\n", 2591 ndlp->nlp_DID, (void *)ndlp, 2592 ndlp->nlp_usg_map, 2593 atomic_read( 2594 &ndlp->kref.refcount)); 2595 } 2596 break; 2597 } 2598 2599 /* Wait for any activity on ndlps to settle */ 2600 msleep(10); 2601 } 2602 lpfc_cleanup_vports_rrqs(vport, NULL); 2603 } 2604 2605 /** 2606 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2607 * @vport: pointer to a virtual N_Port data structure. 2608 * 2609 * This routine stops all the timers associated with a @vport. This function 2610 * is invoked before disabling or deleting a @vport. Note that the physical 2611 * port is treated as @vport 0. 2612 **/ 2613 void 2614 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2615 { 2616 del_timer_sync(&vport->els_tmofunc); 2617 del_timer_sync(&vport->fc_fdmitmo); 2618 del_timer_sync(&vport->delayed_disc_tmo); 2619 lpfc_can_disctmo(vport); 2620 return; 2621 } 2622 2623 /** 2624 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2625 * @phba: pointer to lpfc hba data structure. 2626 * 2627 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2628 * caller of this routine should already hold the host lock. 2629 **/ 2630 void 2631 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2632 { 2633 /* Clear pending FCF rediscovery wait flag */ 2634 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2635 2636 /* Now, try to stop the timer */ 2637 del_timer(&phba->fcf.redisc_wait); 2638 } 2639 2640 /** 2641 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2642 * @phba: pointer to lpfc hba data structure. 2643 * 2644 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2645 * checks whether the FCF rediscovery wait timer is pending with the host 2646 * lock held before proceeding with disabling the timer and clearing the 2647 * wait timer pendig flag. 2648 **/ 2649 void 2650 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2651 { 2652 spin_lock_irq(&phba->hbalock); 2653 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2654 /* FCF rediscovery timer already fired or stopped */ 2655 spin_unlock_irq(&phba->hbalock); 2656 return; 2657 } 2658 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2659 /* Clear failover in progress flags */ 2660 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2661 spin_unlock_irq(&phba->hbalock); 2662 } 2663 2664 /** 2665 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2666 * @phba: pointer to lpfc hba data structure. 2667 * 2668 * This routine stops all the timers associated with a HBA. This function is 2669 * invoked before either putting a HBA offline or unloading the driver. 2670 **/ 2671 void 2672 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2673 { 2674 lpfc_stop_vport_timers(phba->pport); 2675 del_timer_sync(&phba->sli.mbox_tmo); 2676 del_timer_sync(&phba->fabric_block_timer); 2677 del_timer_sync(&phba->eratt_poll); 2678 del_timer_sync(&phba->hb_tmofunc); 2679 if (phba->sli_rev == LPFC_SLI_REV4) { 2680 del_timer_sync(&phba->rrq_tmr); 2681 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2682 } 2683 phba->hb_outstanding = 0; 2684 2685 switch (phba->pci_dev_grp) { 2686 case LPFC_PCI_DEV_LP: 2687 /* Stop any LightPulse device specific driver timers */ 2688 del_timer_sync(&phba->fcp_poll_timer); 2689 break; 2690 case LPFC_PCI_DEV_OC: 2691 /* Stop any OneConnect device sepcific driver timers */ 2692 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2693 break; 2694 default: 2695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2696 "0297 Invalid device group (x%x)\n", 2697 phba->pci_dev_grp); 2698 break; 2699 } 2700 return; 2701 } 2702 2703 /** 2704 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2705 * @phba: pointer to lpfc hba data structure. 2706 * 2707 * This routine marks a HBA's management interface as blocked. Once the HBA's 2708 * management interface is marked as blocked, all the user space access to 2709 * the HBA, whether they are from sysfs interface or libdfc interface will 2710 * all be blocked. The HBA is set to block the management interface when the 2711 * driver prepares the HBA interface for online or offline. 2712 **/ 2713 static void 2714 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action) 2715 { 2716 unsigned long iflag; 2717 uint8_t actcmd = MBX_HEARTBEAT; 2718 unsigned long timeout; 2719 2720 spin_lock_irqsave(&phba->hbalock, iflag); 2721 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2722 spin_unlock_irqrestore(&phba->hbalock, iflag); 2723 if (mbx_action == LPFC_MBX_NO_WAIT) 2724 return; 2725 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2726 spin_lock_irqsave(&phba->hbalock, iflag); 2727 if (phba->sli.mbox_active) { 2728 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2729 /* Determine how long we might wait for the active mailbox 2730 * command to be gracefully completed by firmware. 2731 */ 2732 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2733 phba->sli.mbox_active) * 1000) + jiffies; 2734 } 2735 spin_unlock_irqrestore(&phba->hbalock, iflag); 2736 2737 /* Wait for the outstnading mailbox command to complete */ 2738 while (phba->sli.mbox_active) { 2739 /* Check active mailbox complete status every 2ms */ 2740 msleep(2); 2741 if (time_after(jiffies, timeout)) { 2742 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2743 "2813 Mgmt IO is Blocked %x " 2744 "- mbox cmd %x still active\n", 2745 phba->sli.sli_flag, actcmd); 2746 break; 2747 } 2748 } 2749 } 2750 2751 /** 2752 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 2753 * @phba: pointer to lpfc hba data structure. 2754 * 2755 * Allocate RPIs for all active remote nodes. This is needed whenever 2756 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 2757 * is to fixup the temporary rpi assignments. 2758 **/ 2759 void 2760 lpfc_sli4_node_prep(struct lpfc_hba *phba) 2761 { 2762 struct lpfc_nodelist *ndlp, *next_ndlp; 2763 struct lpfc_vport **vports; 2764 int i; 2765 2766 if (phba->sli_rev != LPFC_SLI_REV4) 2767 return; 2768 2769 vports = lpfc_create_vport_work_array(phba); 2770 if (vports != NULL) { 2771 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2772 if (vports[i]->load_flag & FC_UNLOADING) 2773 continue; 2774 2775 list_for_each_entry_safe(ndlp, next_ndlp, 2776 &vports[i]->fc_nodes, 2777 nlp_listp) { 2778 if (NLP_CHK_NODE_ACT(ndlp)) { 2779 ndlp->nlp_rpi = 2780 lpfc_sli4_alloc_rpi(phba); 2781 lpfc_printf_vlog(ndlp->vport, KERN_INFO, 2782 LOG_NODE, 2783 "0009 rpi:%x DID:%x " 2784 "flg:%x map:%x %p\n", 2785 ndlp->nlp_rpi, 2786 ndlp->nlp_DID, 2787 ndlp->nlp_flag, 2788 ndlp->nlp_usg_map, 2789 ndlp); 2790 } 2791 } 2792 } 2793 } 2794 lpfc_destroy_vport_work_array(phba, vports); 2795 } 2796 2797 /** 2798 * lpfc_online - Initialize and bring a HBA online 2799 * @phba: pointer to lpfc hba data structure. 2800 * 2801 * This routine initializes the HBA and brings a HBA online. During this 2802 * process, the management interface is blocked to prevent user space access 2803 * to the HBA interfering with the driver initialization. 2804 * 2805 * Return codes 2806 * 0 - successful 2807 * 1 - failed 2808 **/ 2809 int 2810 lpfc_online(struct lpfc_hba *phba) 2811 { 2812 struct lpfc_vport *vport; 2813 struct lpfc_vport **vports; 2814 int i; 2815 bool vpis_cleared = false; 2816 2817 if (!phba) 2818 return 0; 2819 vport = phba->pport; 2820 2821 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2822 return 0; 2823 2824 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2825 "0458 Bring Adapter online\n"); 2826 2827 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 2828 2829 if (!lpfc_sli_queue_setup(phba)) { 2830 lpfc_unblock_mgmt_io(phba); 2831 return 1; 2832 } 2833 2834 if (phba->sli_rev == LPFC_SLI_REV4) { 2835 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2836 lpfc_unblock_mgmt_io(phba); 2837 return 1; 2838 } 2839 spin_lock_irq(&phba->hbalock); 2840 if (!phba->sli4_hba.max_cfg_param.vpi_used) 2841 vpis_cleared = true; 2842 spin_unlock_irq(&phba->hbalock); 2843 } else { 2844 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2845 lpfc_unblock_mgmt_io(phba); 2846 return 1; 2847 } 2848 } 2849 2850 vports = lpfc_create_vport_work_array(phba); 2851 if (vports != NULL) 2852 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2853 struct Scsi_Host *shost; 2854 shost = lpfc_shost_from_vport(vports[i]); 2855 spin_lock_irq(shost->host_lock); 2856 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2857 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2858 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2859 if (phba->sli_rev == LPFC_SLI_REV4) { 2860 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2861 if ((vpis_cleared) && 2862 (vports[i]->port_type != 2863 LPFC_PHYSICAL_PORT)) 2864 vports[i]->vpi = 0; 2865 } 2866 spin_unlock_irq(shost->host_lock); 2867 } 2868 lpfc_destroy_vport_work_array(phba, vports); 2869 2870 lpfc_unblock_mgmt_io(phba); 2871 return 0; 2872 } 2873 2874 /** 2875 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2876 * @phba: pointer to lpfc hba data structure. 2877 * 2878 * This routine marks a HBA's management interface as not blocked. Once the 2879 * HBA's management interface is marked as not blocked, all the user space 2880 * access to the HBA, whether they are from sysfs interface or libdfc 2881 * interface will be allowed. The HBA is set to block the management interface 2882 * when the driver prepares the HBA interface for online or offline and then 2883 * set to unblock the management interface afterwards. 2884 **/ 2885 void 2886 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2887 { 2888 unsigned long iflag; 2889 2890 spin_lock_irqsave(&phba->hbalock, iflag); 2891 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2892 spin_unlock_irqrestore(&phba->hbalock, iflag); 2893 } 2894 2895 /** 2896 * lpfc_offline_prep - Prepare a HBA to be brought offline 2897 * @phba: pointer to lpfc hba data structure. 2898 * 2899 * This routine is invoked to prepare a HBA to be brought offline. It performs 2900 * unregistration login to all the nodes on all vports and flushes the mailbox 2901 * queue to make it ready to be brought offline. 2902 **/ 2903 void 2904 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) 2905 { 2906 struct lpfc_vport *vport = phba->pport; 2907 struct lpfc_nodelist *ndlp, *next_ndlp; 2908 struct lpfc_vport **vports; 2909 struct Scsi_Host *shost; 2910 int i; 2911 2912 if (vport->fc_flag & FC_OFFLINE_MODE) 2913 return; 2914 2915 lpfc_block_mgmt_io(phba, mbx_action); 2916 2917 lpfc_linkdown(phba); 2918 2919 /* Issue an unreg_login to all nodes on all vports */ 2920 vports = lpfc_create_vport_work_array(phba); 2921 if (vports != NULL) { 2922 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2923 if (vports[i]->load_flag & FC_UNLOADING) 2924 continue; 2925 shost = lpfc_shost_from_vport(vports[i]); 2926 spin_lock_irq(shost->host_lock); 2927 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2928 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2929 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2930 spin_unlock_irq(shost->host_lock); 2931 2932 shost = lpfc_shost_from_vport(vports[i]); 2933 list_for_each_entry_safe(ndlp, next_ndlp, 2934 &vports[i]->fc_nodes, 2935 nlp_listp) { 2936 if (!NLP_CHK_NODE_ACT(ndlp)) 2937 continue; 2938 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2939 continue; 2940 if (ndlp->nlp_type & NLP_FABRIC) { 2941 lpfc_disc_state_machine(vports[i], ndlp, 2942 NULL, NLP_EVT_DEVICE_RECOVERY); 2943 lpfc_disc_state_machine(vports[i], ndlp, 2944 NULL, NLP_EVT_DEVICE_RM); 2945 } 2946 spin_lock_irq(shost->host_lock); 2947 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2948 spin_unlock_irq(shost->host_lock); 2949 /* 2950 * Whenever an SLI4 port goes offline, free the 2951 * RPI. Get a new RPI when the adapter port 2952 * comes back online. 2953 */ 2954 if (phba->sli_rev == LPFC_SLI_REV4) { 2955 lpfc_printf_vlog(ndlp->vport, 2956 KERN_INFO, LOG_NODE, 2957 "0011 lpfc_offline: " 2958 "ndlp:x%p did %x " 2959 "usgmap:x%x rpi:%x\n", 2960 ndlp, ndlp->nlp_DID, 2961 ndlp->nlp_usg_map, 2962 ndlp->nlp_rpi); 2963 2964 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 2965 } 2966 lpfc_unreg_rpi(vports[i], ndlp); 2967 } 2968 } 2969 } 2970 lpfc_destroy_vport_work_array(phba, vports); 2971 2972 lpfc_sli_mbox_sys_shutdown(phba, mbx_action); 2973 } 2974 2975 /** 2976 * lpfc_offline - Bring a HBA offline 2977 * @phba: pointer to lpfc hba data structure. 2978 * 2979 * This routine actually brings a HBA offline. It stops all the timers 2980 * associated with the HBA, brings down the SLI layer, and eventually 2981 * marks the HBA as in offline state for the upper layer protocol. 2982 **/ 2983 void 2984 lpfc_offline(struct lpfc_hba *phba) 2985 { 2986 struct Scsi_Host *shost; 2987 struct lpfc_vport **vports; 2988 int i; 2989 2990 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2991 return; 2992 2993 /* stop port and all timers associated with this hba */ 2994 lpfc_stop_port(phba); 2995 vports = lpfc_create_vport_work_array(phba); 2996 if (vports != NULL) 2997 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2998 lpfc_stop_vport_timers(vports[i]); 2999 lpfc_destroy_vport_work_array(phba, vports); 3000 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3001 "0460 Bring Adapter offline\n"); 3002 /* Bring down the SLI Layer and cleanup. The HBA is offline 3003 now. */ 3004 lpfc_sli_hba_down(phba); 3005 spin_lock_irq(&phba->hbalock); 3006 phba->work_ha = 0; 3007 spin_unlock_irq(&phba->hbalock); 3008 vports = lpfc_create_vport_work_array(phba); 3009 if (vports != NULL) 3010 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3011 shost = lpfc_shost_from_vport(vports[i]); 3012 spin_lock_irq(shost->host_lock); 3013 vports[i]->work_port_events = 0; 3014 vports[i]->fc_flag |= FC_OFFLINE_MODE; 3015 spin_unlock_irq(shost->host_lock); 3016 } 3017 lpfc_destroy_vport_work_array(phba, vports); 3018 } 3019 3020 /** 3021 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 3022 * @phba: pointer to lpfc hba data structure. 3023 * 3024 * This routine is to free all the SCSI buffers and IOCBs from the driver 3025 * list back to kernel. It is called from lpfc_pci_remove_one to free 3026 * the internal resources before the device is removed from the system. 3027 **/ 3028 static void 3029 lpfc_scsi_free(struct lpfc_hba *phba) 3030 { 3031 struct lpfc_scsi_buf *sb, *sb_next; 3032 struct lpfc_iocbq *io, *io_next; 3033 3034 spin_lock_irq(&phba->hbalock); 3035 3036 /* Release all the lpfc_scsi_bufs maintained by this host. */ 3037 3038 spin_lock(&phba->scsi_buf_list_put_lock); 3039 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put, 3040 list) { 3041 list_del(&sb->list); 3042 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 3043 sb->dma_handle); 3044 kfree(sb); 3045 phba->total_scsi_bufs--; 3046 } 3047 spin_unlock(&phba->scsi_buf_list_put_lock); 3048 3049 spin_lock(&phba->scsi_buf_list_get_lock); 3050 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get, 3051 list) { 3052 list_del(&sb->list); 3053 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 3054 sb->dma_handle); 3055 kfree(sb); 3056 phba->total_scsi_bufs--; 3057 } 3058 spin_unlock(&phba->scsi_buf_list_get_lock); 3059 3060 /* Release all the lpfc_iocbq entries maintained by this host. */ 3061 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 3062 list_del(&io->list); 3063 kfree(io); 3064 phba->total_iocbq_bufs--; 3065 } 3066 3067 spin_unlock_irq(&phba->hbalock); 3068 } 3069 3070 /** 3071 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping 3072 * @phba: pointer to lpfc hba data structure. 3073 * 3074 * This routine first calculates the sizes of the current els and allocated 3075 * scsi sgl lists, and then goes through all sgls to updates the physical 3076 * XRIs assigned due to port function reset. During port initialization, the 3077 * current els and allocated scsi sgl lists are 0s. 3078 * 3079 * Return codes 3080 * 0 - successful (for now, it always returns 0) 3081 **/ 3082 int 3083 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba) 3084 { 3085 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3086 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL; 3087 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt; 3088 LIST_HEAD(els_sgl_list); 3089 LIST_HEAD(scsi_sgl_list); 3090 int rc; 3091 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; 3092 3093 /* 3094 * update on pci function's els xri-sgl list 3095 */ 3096 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3097 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 3098 /* els xri-sgl expanded */ 3099 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 3100 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3101 "3157 ELS xri-sgl count increased from " 3102 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3103 els_xri_cnt); 3104 /* allocate the additional els sgls */ 3105 for (i = 0; i < xri_cnt; i++) { 3106 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3107 GFP_KERNEL); 3108 if (sglq_entry == NULL) { 3109 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3110 "2562 Failure to allocate an " 3111 "ELS sgl entry:%d\n", i); 3112 rc = -ENOMEM; 3113 goto out_free_mem; 3114 } 3115 sglq_entry->buff_type = GEN_BUFF_TYPE; 3116 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 3117 &sglq_entry->phys); 3118 if (sglq_entry->virt == NULL) { 3119 kfree(sglq_entry); 3120 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3121 "2563 Failure to allocate an " 3122 "ELS mbuf:%d\n", i); 3123 rc = -ENOMEM; 3124 goto out_free_mem; 3125 } 3126 sglq_entry->sgl = sglq_entry->virt; 3127 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 3128 sglq_entry->state = SGL_FREED; 3129 list_add_tail(&sglq_entry->list, &els_sgl_list); 3130 } 3131 spin_lock_irq(&phba->hbalock); 3132 spin_lock(&pring->ring_lock); 3133 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 3134 spin_unlock(&pring->ring_lock); 3135 spin_unlock_irq(&phba->hbalock); 3136 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 3137 /* els xri-sgl shrinked */ 3138 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 3139 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3140 "3158 ELS xri-sgl count decreased from " 3141 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3142 els_xri_cnt); 3143 spin_lock_irq(&phba->hbalock); 3144 spin_lock(&pring->ring_lock); 3145 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list); 3146 spin_unlock(&pring->ring_lock); 3147 spin_unlock_irq(&phba->hbalock); 3148 /* release extra els sgls from list */ 3149 for (i = 0; i < xri_cnt; i++) { 3150 list_remove_head(&els_sgl_list, 3151 sglq_entry, struct lpfc_sglq, list); 3152 if (sglq_entry) { 3153 lpfc_mbuf_free(phba, sglq_entry->virt, 3154 sglq_entry->phys); 3155 kfree(sglq_entry); 3156 } 3157 } 3158 spin_lock_irq(&phba->hbalock); 3159 spin_lock(&pring->ring_lock); 3160 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 3161 spin_unlock(&pring->ring_lock); 3162 spin_unlock_irq(&phba->hbalock); 3163 } else 3164 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3165 "3163 ELS xri-sgl count unchanged: %d\n", 3166 els_xri_cnt); 3167 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 3168 3169 /* update xris to els sgls on the list */ 3170 sglq_entry = NULL; 3171 sglq_entry_next = NULL; 3172 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3173 &phba->sli4_hba.lpfc_sgl_list, list) { 3174 lxri = lpfc_sli4_next_xritag(phba); 3175 if (lxri == NO_XRI) { 3176 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3177 "2400 Failed to allocate xri for " 3178 "ELS sgl\n"); 3179 rc = -ENOMEM; 3180 goto out_free_mem; 3181 } 3182 sglq_entry->sli4_lxritag = lxri; 3183 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3184 } 3185 3186 /* 3187 * update on pci function's allocated scsi xri-sgl list 3188 */ 3189 phba->total_scsi_bufs = 0; 3190 3191 /* maximum number of xris available for scsi buffers */ 3192 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - 3193 els_xri_cnt; 3194 3195 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3196 "2401 Current allocated SCSI xri-sgl count:%d, " 3197 "maximum SCSI xri count:%d\n", 3198 phba->sli4_hba.scsi_xri_cnt, 3199 phba->sli4_hba.scsi_xri_max); 3200 3201 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3202 spin_lock(&phba->scsi_buf_list_put_lock); 3203 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list); 3204 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list); 3205 spin_unlock(&phba->scsi_buf_list_put_lock); 3206 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3207 3208 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { 3209 /* max scsi xri shrinked below the allocated scsi buffers */ 3210 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - 3211 phba->sli4_hba.scsi_xri_max; 3212 /* release the extra allocated scsi buffers */ 3213 for (i = 0; i < scsi_xri_cnt; i++) { 3214 list_remove_head(&scsi_sgl_list, psb, 3215 struct lpfc_scsi_buf, list); 3216 if (psb) { 3217 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, 3218 psb->data, psb->dma_handle); 3219 kfree(psb); 3220 } 3221 } 3222 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3223 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; 3224 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3225 } 3226 3227 /* update xris associated to remaining allocated scsi buffers */ 3228 psb = NULL; 3229 psb_next = NULL; 3230 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { 3231 lxri = lpfc_sli4_next_xritag(phba); 3232 if (lxri == NO_XRI) { 3233 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3234 "2560 Failed to allocate xri for " 3235 "scsi buffer\n"); 3236 rc = -ENOMEM; 3237 goto out_free_mem; 3238 } 3239 psb->cur_iocbq.sli4_lxritag = lxri; 3240 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3241 } 3242 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3243 spin_lock(&phba->scsi_buf_list_put_lock); 3244 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get); 3245 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 3246 spin_unlock(&phba->scsi_buf_list_put_lock); 3247 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3248 3249 return 0; 3250 3251 out_free_mem: 3252 lpfc_free_els_sgl_list(phba); 3253 lpfc_scsi_free(phba); 3254 return rc; 3255 } 3256 3257 /** 3258 * lpfc_create_port - Create an FC port 3259 * @phba: pointer to lpfc hba data structure. 3260 * @instance: a unique integer ID to this FC port. 3261 * @dev: pointer to the device data structure. 3262 * 3263 * This routine creates a FC port for the upper layer protocol. The FC port 3264 * can be created on top of either a physical port or a virtual port provided 3265 * by the HBA. This routine also allocates a SCSI host data structure (shost) 3266 * and associates the FC port created before adding the shost into the SCSI 3267 * layer. 3268 * 3269 * Return codes 3270 * @vport - pointer to the virtual N_Port data structure. 3271 * NULL - port create failed. 3272 **/ 3273 struct lpfc_vport * 3274 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 3275 { 3276 struct lpfc_vport *vport; 3277 struct Scsi_Host *shost; 3278 int error = 0; 3279 3280 if (dev != &phba->pcidev->dev) { 3281 shost = scsi_host_alloc(&lpfc_vport_template, 3282 sizeof(struct lpfc_vport)); 3283 } else { 3284 if (phba->sli_rev == LPFC_SLI_REV4) 3285 shost = scsi_host_alloc(&lpfc_template, 3286 sizeof(struct lpfc_vport)); 3287 else 3288 shost = scsi_host_alloc(&lpfc_template_s3, 3289 sizeof(struct lpfc_vport)); 3290 } 3291 if (!shost) 3292 goto out; 3293 3294 vport = (struct lpfc_vport *) shost->hostdata; 3295 vport->phba = phba; 3296 vport->load_flag |= FC_LOADING; 3297 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3298 vport->fc_rscn_flush = 0; 3299 3300 lpfc_get_vport_cfgparam(vport); 3301 shost->unique_id = instance; 3302 shost->max_id = LPFC_MAX_TARGET; 3303 shost->max_lun = vport->cfg_max_luns; 3304 shost->this_id = -1; 3305 shost->max_cmd_len = 16; 3306 if (phba->sli_rev == LPFC_SLI_REV4) { 3307 shost->dma_boundary = 3308 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3309 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 3310 } 3311 3312 /* 3313 * Set initial can_queue value since 0 is no longer supported and 3314 * scsi_add_host will fail. This will be adjusted later based on the 3315 * max xri value determined in hba setup. 3316 */ 3317 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3318 if (dev != &phba->pcidev->dev) { 3319 shost->transportt = lpfc_vport_transport_template; 3320 vport->port_type = LPFC_NPIV_PORT; 3321 } else { 3322 shost->transportt = lpfc_transport_template; 3323 vport->port_type = LPFC_PHYSICAL_PORT; 3324 } 3325 3326 /* Initialize all internally managed lists. */ 3327 INIT_LIST_HEAD(&vport->fc_nodes); 3328 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3329 spin_lock_init(&vport->work_port_lock); 3330 3331 init_timer(&vport->fc_disctmo); 3332 vport->fc_disctmo.function = lpfc_disc_timeout; 3333 vport->fc_disctmo.data = (unsigned long)vport; 3334 3335 init_timer(&vport->fc_fdmitmo); 3336 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 3337 vport->fc_fdmitmo.data = (unsigned long)vport; 3338 3339 init_timer(&vport->els_tmofunc); 3340 vport->els_tmofunc.function = lpfc_els_timeout; 3341 vport->els_tmofunc.data = (unsigned long)vport; 3342 3343 init_timer(&vport->delayed_disc_tmo); 3344 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; 3345 vport->delayed_disc_tmo.data = (unsigned long)vport; 3346 3347 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3348 if (error) 3349 goto out_put_shost; 3350 3351 spin_lock_irq(&phba->hbalock); 3352 list_add_tail(&vport->listentry, &phba->port_list); 3353 spin_unlock_irq(&phba->hbalock); 3354 return vport; 3355 3356 out_put_shost: 3357 scsi_host_put(shost); 3358 out: 3359 return NULL; 3360 } 3361 3362 /** 3363 * destroy_port - destroy an FC port 3364 * @vport: pointer to an lpfc virtual N_Port data structure. 3365 * 3366 * This routine destroys a FC port from the upper layer protocol. All the 3367 * resources associated with the port are released. 3368 **/ 3369 void 3370 destroy_port(struct lpfc_vport *vport) 3371 { 3372 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3373 struct lpfc_hba *phba = vport->phba; 3374 3375 lpfc_debugfs_terminate(vport); 3376 fc_remove_host(shost); 3377 scsi_remove_host(shost); 3378 3379 spin_lock_irq(&phba->hbalock); 3380 list_del_init(&vport->listentry); 3381 spin_unlock_irq(&phba->hbalock); 3382 3383 lpfc_cleanup(vport); 3384 return; 3385 } 3386 3387 /** 3388 * lpfc_get_instance - Get a unique integer ID 3389 * 3390 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 3391 * uses the kernel idr facility to perform the task. 3392 * 3393 * Return codes: 3394 * instance - a unique integer ID allocated as the new instance. 3395 * -1 - lpfc get instance failed. 3396 **/ 3397 int 3398 lpfc_get_instance(void) 3399 { 3400 int ret; 3401 3402 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); 3403 return ret < 0 ? -1 : ret; 3404 } 3405 3406 /** 3407 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 3408 * @shost: pointer to SCSI host data structure. 3409 * @time: elapsed time of the scan in jiffies. 3410 * 3411 * This routine is called by the SCSI layer with a SCSI host to determine 3412 * whether the scan host is finished. 3413 * 3414 * Note: there is no scan_start function as adapter initialization will have 3415 * asynchronously kicked off the link initialization. 3416 * 3417 * Return codes 3418 * 0 - SCSI host scan is not over yet. 3419 * 1 - SCSI host scan is over. 3420 **/ 3421 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 3422 { 3423 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3424 struct lpfc_hba *phba = vport->phba; 3425 int stat = 0; 3426 3427 spin_lock_irq(shost->host_lock); 3428 3429 if (vport->load_flag & FC_UNLOADING) { 3430 stat = 1; 3431 goto finished; 3432 } 3433 if (time >= msecs_to_jiffies(30 * 1000)) { 3434 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3435 "0461 Scanning longer than 30 " 3436 "seconds. Continuing initialization\n"); 3437 stat = 1; 3438 goto finished; 3439 } 3440 if (time >= msecs_to_jiffies(15 * 1000) && 3441 phba->link_state <= LPFC_LINK_DOWN) { 3442 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3443 "0465 Link down longer than 15 " 3444 "seconds. Continuing initialization\n"); 3445 stat = 1; 3446 goto finished; 3447 } 3448 3449 if (vport->port_state != LPFC_VPORT_READY) 3450 goto finished; 3451 if (vport->num_disc_nodes || vport->fc_prli_sent) 3452 goto finished; 3453 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000)) 3454 goto finished; 3455 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 3456 goto finished; 3457 3458 stat = 1; 3459 3460 finished: 3461 spin_unlock_irq(shost->host_lock); 3462 return stat; 3463 } 3464 3465 /** 3466 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 3467 * @shost: pointer to SCSI host data structure. 3468 * 3469 * This routine initializes a given SCSI host attributes on a FC port. The 3470 * SCSI host can be either on top of a physical port or a virtual port. 3471 **/ 3472 void lpfc_host_attrib_init(struct Scsi_Host *shost) 3473 { 3474 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3475 struct lpfc_hba *phba = vport->phba; 3476 /* 3477 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 3478 */ 3479 3480 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 3481 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3482 fc_host_supported_classes(shost) = FC_COS_CLASS3; 3483 3484 memset(fc_host_supported_fc4s(shost), 0, 3485 sizeof(fc_host_supported_fc4s(shost))); 3486 fc_host_supported_fc4s(shost)[2] = 1; 3487 fc_host_supported_fc4s(shost)[7] = 1; 3488 3489 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 3490 sizeof fc_host_symbolic_name(shost)); 3491 3492 fc_host_supported_speeds(shost) = 0; 3493 if (phba->lmt & LMT_16Gb) 3494 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 3495 if (phba->lmt & LMT_10Gb) 3496 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 3497 if (phba->lmt & LMT_8Gb) 3498 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 3499 if (phba->lmt & LMT_4Gb) 3500 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 3501 if (phba->lmt & LMT_2Gb) 3502 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 3503 if (phba->lmt & LMT_1Gb) 3504 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 3505 3506 fc_host_maxframe_size(shost) = 3507 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 3508 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 3509 3510 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 3511 3512 /* This value is also unchanging */ 3513 memset(fc_host_active_fc4s(shost), 0, 3514 sizeof(fc_host_active_fc4s(shost))); 3515 fc_host_active_fc4s(shost)[2] = 1; 3516 fc_host_active_fc4s(shost)[7] = 1; 3517 3518 fc_host_max_npiv_vports(shost) = phba->max_vpi; 3519 spin_lock_irq(shost->host_lock); 3520 vport->load_flag &= ~FC_LOADING; 3521 spin_unlock_irq(shost->host_lock); 3522 } 3523 3524 /** 3525 * lpfc_stop_port_s3 - Stop SLI3 device port 3526 * @phba: pointer to lpfc hba data structure. 3527 * 3528 * This routine is invoked to stop an SLI3 device port, it stops the device 3529 * from generating interrupts and stops the device driver's timers for the 3530 * device. 3531 **/ 3532 static void 3533 lpfc_stop_port_s3(struct lpfc_hba *phba) 3534 { 3535 /* Clear all interrupt enable conditions */ 3536 writel(0, phba->HCregaddr); 3537 readl(phba->HCregaddr); /* flush */ 3538 /* Clear all pending interrupts */ 3539 writel(0xffffffff, phba->HAregaddr); 3540 readl(phba->HAregaddr); /* flush */ 3541 3542 /* Reset some HBA SLI setup states */ 3543 lpfc_stop_hba_timers(phba); 3544 phba->pport->work_port_events = 0; 3545 } 3546 3547 /** 3548 * lpfc_stop_port_s4 - Stop SLI4 device port 3549 * @phba: pointer to lpfc hba data structure. 3550 * 3551 * This routine is invoked to stop an SLI4 device port, it stops the device 3552 * from generating interrupts and stops the device driver's timers for the 3553 * device. 3554 **/ 3555 static void 3556 lpfc_stop_port_s4(struct lpfc_hba *phba) 3557 { 3558 /* Reset some HBA SLI4 setup states */ 3559 lpfc_stop_hba_timers(phba); 3560 phba->pport->work_port_events = 0; 3561 phba->sli4_hba.intr_enable = 0; 3562 } 3563 3564 /** 3565 * lpfc_stop_port - Wrapper function for stopping hba port 3566 * @phba: Pointer to HBA context object. 3567 * 3568 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 3569 * the API jump table function pointer from the lpfc_hba struct. 3570 **/ 3571 void 3572 lpfc_stop_port(struct lpfc_hba *phba) 3573 { 3574 phba->lpfc_stop_port(phba); 3575 } 3576 3577 /** 3578 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 3579 * @phba: Pointer to hba for which this call is being executed. 3580 * 3581 * This routine starts the timer waiting for the FCF rediscovery to complete. 3582 **/ 3583 void 3584 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 3585 { 3586 unsigned long fcf_redisc_wait_tmo = 3587 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 3588 /* Start fcf rediscovery wait period timer */ 3589 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 3590 spin_lock_irq(&phba->hbalock); 3591 /* Allow action to new fcf asynchronous event */ 3592 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 3593 /* Mark the FCF rediscovery pending state */ 3594 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 3595 spin_unlock_irq(&phba->hbalock); 3596 } 3597 3598 /** 3599 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 3600 * @ptr: Map to lpfc_hba data structure pointer. 3601 * 3602 * This routine is invoked when waiting for FCF table rediscover has been 3603 * timed out. If new FCF record(s) has (have) been discovered during the 3604 * wait period, a new FCF event shall be added to the FCOE async event 3605 * list, and then worker thread shall be waked up for processing from the 3606 * worker thread context. 3607 **/ 3608 static void 3609 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 3610 { 3611 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 3612 3613 /* Don't send FCF rediscovery event if timer cancelled */ 3614 spin_lock_irq(&phba->hbalock); 3615 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 3616 spin_unlock_irq(&phba->hbalock); 3617 return; 3618 } 3619 /* Clear FCF rediscovery timer pending flag */ 3620 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 3621 /* FCF rediscovery event to worker thread */ 3622 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 3623 spin_unlock_irq(&phba->hbalock); 3624 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3625 "2776 FCF rediscover quiescent timer expired\n"); 3626 /* wake up worker thread */ 3627 lpfc_worker_wake_up(phba); 3628 } 3629 3630 /** 3631 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3632 * @phba: pointer to lpfc hba data structure. 3633 * @acqe_link: pointer to the async link completion queue entry. 3634 * 3635 * This routine is to parse the SLI4 link-attention link fault code and 3636 * translate it into the base driver's read link attention mailbox command 3637 * status. 3638 * 3639 * Return: Link-attention status in terms of base driver's coding. 3640 **/ 3641 static uint16_t 3642 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3643 struct lpfc_acqe_link *acqe_link) 3644 { 3645 uint16_t latt_fault; 3646 3647 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3648 case LPFC_ASYNC_LINK_FAULT_NONE: 3649 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3650 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3651 latt_fault = 0; 3652 break; 3653 default: 3654 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3655 "0398 Invalid link fault code: x%x\n", 3656 bf_get(lpfc_acqe_link_fault, acqe_link)); 3657 latt_fault = MBXERR_ERROR; 3658 break; 3659 } 3660 return latt_fault; 3661 } 3662 3663 /** 3664 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3665 * @phba: pointer to lpfc hba data structure. 3666 * @acqe_link: pointer to the async link completion queue entry. 3667 * 3668 * This routine is to parse the SLI4 link attention type and translate it 3669 * into the base driver's link attention type coding. 3670 * 3671 * Return: Link attention type in terms of base driver's coding. 3672 **/ 3673 static uint8_t 3674 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3675 struct lpfc_acqe_link *acqe_link) 3676 { 3677 uint8_t att_type; 3678 3679 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3680 case LPFC_ASYNC_LINK_STATUS_DOWN: 3681 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3682 att_type = LPFC_ATT_LINK_DOWN; 3683 break; 3684 case LPFC_ASYNC_LINK_STATUS_UP: 3685 /* Ignore physical link up events - wait for logical link up */ 3686 att_type = LPFC_ATT_RESERVED; 3687 break; 3688 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3689 att_type = LPFC_ATT_LINK_UP; 3690 break; 3691 default: 3692 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3693 "0399 Invalid link attention type: x%x\n", 3694 bf_get(lpfc_acqe_link_status, acqe_link)); 3695 att_type = LPFC_ATT_RESERVED; 3696 break; 3697 } 3698 return att_type; 3699 } 3700 3701 /** 3702 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3703 * @phba: pointer to lpfc hba data structure. 3704 * @acqe_link: pointer to the async link completion queue entry. 3705 * 3706 * This routine is to parse the SLI4 link-attention link speed and translate 3707 * it into the base driver's link-attention link speed coding. 3708 * 3709 * Return: Link-attention link speed in terms of base driver's coding. 3710 **/ 3711 static uint8_t 3712 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3713 struct lpfc_acqe_link *acqe_link) 3714 { 3715 uint8_t link_speed; 3716 3717 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3718 case LPFC_ASYNC_LINK_SPEED_ZERO: 3719 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3720 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3721 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3722 break; 3723 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3724 link_speed = LPFC_LINK_SPEED_1GHZ; 3725 break; 3726 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3727 link_speed = LPFC_LINK_SPEED_10GHZ; 3728 break; 3729 case LPFC_ASYNC_LINK_SPEED_20GBPS: 3730 case LPFC_ASYNC_LINK_SPEED_25GBPS: 3731 case LPFC_ASYNC_LINK_SPEED_40GBPS: 3732 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3733 break; 3734 default: 3735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3736 "0483 Invalid link-attention link speed: x%x\n", 3737 bf_get(lpfc_acqe_link_speed, acqe_link)); 3738 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3739 break; 3740 } 3741 return link_speed; 3742 } 3743 3744 /** 3745 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 3746 * @phba: pointer to lpfc hba data structure. 3747 * 3748 * This routine is to get an SLI3 FC port's link speed in Mbps. 3749 * 3750 * Return: link speed in terms of Mbps. 3751 **/ 3752 uint32_t 3753 lpfc_sli_port_speed_get(struct lpfc_hba *phba) 3754 { 3755 uint32_t link_speed; 3756 3757 if (!lpfc_is_link_up(phba)) 3758 return 0; 3759 3760 switch (phba->fc_linkspeed) { 3761 case LPFC_LINK_SPEED_1GHZ: 3762 link_speed = 1000; 3763 break; 3764 case LPFC_LINK_SPEED_2GHZ: 3765 link_speed = 2000; 3766 break; 3767 case LPFC_LINK_SPEED_4GHZ: 3768 link_speed = 4000; 3769 break; 3770 case LPFC_LINK_SPEED_8GHZ: 3771 link_speed = 8000; 3772 break; 3773 case LPFC_LINK_SPEED_10GHZ: 3774 link_speed = 10000; 3775 break; 3776 case LPFC_LINK_SPEED_16GHZ: 3777 link_speed = 16000; 3778 break; 3779 default: 3780 link_speed = 0; 3781 } 3782 return link_speed; 3783 } 3784 3785 /** 3786 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 3787 * @phba: pointer to lpfc hba data structure. 3788 * @evt_code: asynchronous event code. 3789 * @speed_code: asynchronous event link speed code. 3790 * 3791 * This routine is to parse the giving SLI4 async event link speed code into 3792 * value of Mbps for the link speed. 3793 * 3794 * Return: link speed in terms of Mbps. 3795 **/ 3796 static uint32_t 3797 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 3798 uint8_t speed_code) 3799 { 3800 uint32_t port_speed; 3801 3802 switch (evt_code) { 3803 case LPFC_TRAILER_CODE_LINK: 3804 switch (speed_code) { 3805 case LPFC_ASYNC_LINK_SPEED_ZERO: 3806 port_speed = 0; 3807 break; 3808 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3809 port_speed = 10; 3810 break; 3811 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3812 port_speed = 100; 3813 break; 3814 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3815 port_speed = 1000; 3816 break; 3817 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3818 port_speed = 10000; 3819 break; 3820 case LPFC_ASYNC_LINK_SPEED_20GBPS: 3821 port_speed = 20000; 3822 break; 3823 case LPFC_ASYNC_LINK_SPEED_25GBPS: 3824 port_speed = 25000; 3825 break; 3826 case LPFC_ASYNC_LINK_SPEED_40GBPS: 3827 port_speed = 40000; 3828 break; 3829 default: 3830 port_speed = 0; 3831 } 3832 break; 3833 case LPFC_TRAILER_CODE_FC: 3834 switch (speed_code) { 3835 case LPFC_FC_LA_SPEED_UNKNOWN: 3836 port_speed = 0; 3837 break; 3838 case LPFC_FC_LA_SPEED_1G: 3839 port_speed = 1000; 3840 break; 3841 case LPFC_FC_LA_SPEED_2G: 3842 port_speed = 2000; 3843 break; 3844 case LPFC_FC_LA_SPEED_4G: 3845 port_speed = 4000; 3846 break; 3847 case LPFC_FC_LA_SPEED_8G: 3848 port_speed = 8000; 3849 break; 3850 case LPFC_FC_LA_SPEED_10G: 3851 port_speed = 10000; 3852 break; 3853 case LPFC_FC_LA_SPEED_16G: 3854 port_speed = 16000; 3855 break; 3856 default: 3857 port_speed = 0; 3858 } 3859 break; 3860 default: 3861 port_speed = 0; 3862 } 3863 return port_speed; 3864 } 3865 3866 /** 3867 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 3868 * @phba: pointer to lpfc hba data structure. 3869 * @acqe_link: pointer to the async link completion queue entry. 3870 * 3871 * This routine is to handle the SLI4 asynchronous FCoE link event. 3872 **/ 3873 static void 3874 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3875 struct lpfc_acqe_link *acqe_link) 3876 { 3877 struct lpfc_dmabuf *mp; 3878 LPFC_MBOXQ_t *pmb; 3879 MAILBOX_t *mb; 3880 struct lpfc_mbx_read_top *la; 3881 uint8_t att_type; 3882 int rc; 3883 3884 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3885 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 3886 return; 3887 phba->fcoe_eventtag = acqe_link->event_tag; 3888 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3889 if (!pmb) { 3890 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3891 "0395 The mboxq allocation failed\n"); 3892 return; 3893 } 3894 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3895 if (!mp) { 3896 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3897 "0396 The lpfc_dmabuf allocation failed\n"); 3898 goto out_free_pmb; 3899 } 3900 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3901 if (!mp->virt) { 3902 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3903 "0397 The mbuf allocation failed\n"); 3904 goto out_free_dmabuf; 3905 } 3906 3907 /* Cleanup any outstanding ELS commands */ 3908 lpfc_els_flush_all_cmd(phba); 3909 3910 /* Block ELS IOCBs until we have done process link event */ 3911 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3912 3913 /* Update link event statistics */ 3914 phba->sli.slistat.link_event++; 3915 3916 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3917 lpfc_read_topology(phba, pmb, mp); 3918 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3919 pmb->vport = phba->pport; 3920 3921 /* Keep the link status for extra SLI4 state machine reference */ 3922 phba->sli4_hba.link_state.speed = 3923 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 3924 bf_get(lpfc_acqe_link_speed, acqe_link)); 3925 phba->sli4_hba.link_state.duplex = 3926 bf_get(lpfc_acqe_link_duplex, acqe_link); 3927 phba->sli4_hba.link_state.status = 3928 bf_get(lpfc_acqe_link_status, acqe_link); 3929 phba->sli4_hba.link_state.type = 3930 bf_get(lpfc_acqe_link_type, acqe_link); 3931 phba->sli4_hba.link_state.number = 3932 bf_get(lpfc_acqe_link_number, acqe_link); 3933 phba->sli4_hba.link_state.fault = 3934 bf_get(lpfc_acqe_link_fault, acqe_link); 3935 phba->sli4_hba.link_state.logical_speed = 3936 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 3937 3938 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3939 "2900 Async FC/FCoE Link event - Speed:%dGBit " 3940 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 3941 "Logical speed:%dMbps Fault:%d\n", 3942 phba->sli4_hba.link_state.speed, 3943 phba->sli4_hba.link_state.topology, 3944 phba->sli4_hba.link_state.status, 3945 phba->sli4_hba.link_state.type, 3946 phba->sli4_hba.link_state.number, 3947 phba->sli4_hba.link_state.logical_speed, 3948 phba->sli4_hba.link_state.fault); 3949 /* 3950 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 3951 * topology info. Note: Optional for non FC-AL ports. 3952 */ 3953 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3954 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3955 if (rc == MBX_NOT_FINISHED) 3956 goto out_free_dmabuf; 3957 return; 3958 } 3959 /* 3960 * For FCoE Mode: fill in all the topology information we need and call 3961 * the READ_TOPOLOGY completion routine to continue without actually 3962 * sending the READ_TOPOLOGY mailbox command to the port. 3963 */ 3964 /* Parse and translate status field */ 3965 mb = &pmb->u.mb; 3966 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3967 3968 /* Parse and translate link attention fields */ 3969 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3970 la->eventTag = acqe_link->event_tag; 3971 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 3972 bf_set(lpfc_mbx_read_top_link_spd, la, 3973 lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); 3974 3975 /* Fake the the following irrelvant fields */ 3976 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 3977 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 3978 bf_set(lpfc_mbx_read_top_il, la, 0); 3979 bf_set(lpfc_mbx_read_top_pb, la, 0); 3980 bf_set(lpfc_mbx_read_top_fa, la, 0); 3981 bf_set(lpfc_mbx_read_top_mm, la, 0); 3982 3983 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3984 lpfc_mbx_cmpl_read_topology(phba, pmb); 3985 3986 return; 3987 3988 out_free_dmabuf: 3989 kfree(mp); 3990 out_free_pmb: 3991 mempool_free(pmb, phba->mbox_mem_pool); 3992 } 3993 3994 /** 3995 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 3996 * @phba: pointer to lpfc hba data structure. 3997 * @acqe_fc: pointer to the async fc completion queue entry. 3998 * 3999 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 4000 * that the event was received and then issue a read_topology mailbox command so 4001 * that the rest of the driver will treat it the same as SLI3. 4002 **/ 4003 static void 4004 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 4005 { 4006 struct lpfc_dmabuf *mp; 4007 LPFC_MBOXQ_t *pmb; 4008 int rc; 4009 4010 if (bf_get(lpfc_trailer_type, acqe_fc) != 4011 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 4012 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4013 "2895 Non FC link Event detected.(%d)\n", 4014 bf_get(lpfc_trailer_type, acqe_fc)); 4015 return; 4016 } 4017 /* Keep the link status for extra SLI4 state machine reference */ 4018 phba->sli4_hba.link_state.speed = 4019 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 4020 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 4021 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 4022 phba->sli4_hba.link_state.topology = 4023 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 4024 phba->sli4_hba.link_state.status = 4025 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 4026 phba->sli4_hba.link_state.type = 4027 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 4028 phba->sli4_hba.link_state.number = 4029 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 4030 phba->sli4_hba.link_state.fault = 4031 bf_get(lpfc_acqe_link_fault, acqe_fc); 4032 phba->sli4_hba.link_state.logical_speed = 4033 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 4034 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4035 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 4036 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 4037 "%dMbps Fault:%d\n", 4038 phba->sli4_hba.link_state.speed, 4039 phba->sli4_hba.link_state.topology, 4040 phba->sli4_hba.link_state.status, 4041 phba->sli4_hba.link_state.type, 4042 phba->sli4_hba.link_state.number, 4043 phba->sli4_hba.link_state.logical_speed, 4044 phba->sli4_hba.link_state.fault); 4045 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4046 if (!pmb) { 4047 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4048 "2897 The mboxq allocation failed\n"); 4049 return; 4050 } 4051 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4052 if (!mp) { 4053 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4054 "2898 The lpfc_dmabuf allocation failed\n"); 4055 goto out_free_pmb; 4056 } 4057 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4058 if (!mp->virt) { 4059 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4060 "2899 The mbuf allocation failed\n"); 4061 goto out_free_dmabuf; 4062 } 4063 4064 /* Cleanup any outstanding ELS commands */ 4065 lpfc_els_flush_all_cmd(phba); 4066 4067 /* Block ELS IOCBs until we have done process link event */ 4068 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 4069 4070 /* Update link event statistics */ 4071 phba->sli.slistat.link_event++; 4072 4073 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4074 lpfc_read_topology(phba, pmb, mp); 4075 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4076 pmb->vport = phba->pport; 4077 4078 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4079 if (rc == MBX_NOT_FINISHED) 4080 goto out_free_dmabuf; 4081 return; 4082 4083 out_free_dmabuf: 4084 kfree(mp); 4085 out_free_pmb: 4086 mempool_free(pmb, phba->mbox_mem_pool); 4087 } 4088 4089 /** 4090 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 4091 * @phba: pointer to lpfc hba data structure. 4092 * @acqe_fc: pointer to the async SLI completion queue entry. 4093 * 4094 * This routine is to handle the SLI4 asynchronous SLI events. 4095 **/ 4096 static void 4097 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 4098 { 4099 char port_name; 4100 char message[128]; 4101 uint8_t status; 4102 uint8_t evt_type; 4103 struct temp_event temp_event_data; 4104 struct lpfc_acqe_misconfigured_event *misconfigured; 4105 struct Scsi_Host *shost; 4106 4107 evt_type = bf_get(lpfc_trailer_type, acqe_sli); 4108 4109 /* Special case Lancer */ 4110 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 4111 LPFC_SLI_INTF_IF_TYPE_2) { 4112 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4113 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 4114 "x%08x SLI Event Type:%d\n", 4115 acqe_sli->event_data1, acqe_sli->event_data2, 4116 evt_type); 4117 return; 4118 } 4119 4120 port_name = phba->Port[0]; 4121 if (port_name == 0x00) 4122 port_name = '?'; /* get port name is empty */ 4123 4124 switch (evt_type) { 4125 case LPFC_SLI_EVENT_TYPE_OVER_TEMP: 4126 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4127 temp_event_data.event_code = LPFC_THRESHOLD_TEMP; 4128 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4129 4130 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 4131 "3190 Over Temperature:%d Celsius- Port Name %c\n", 4132 acqe_sli->event_data1, port_name); 4133 4134 shost = lpfc_shost_from_vport(phba->pport); 4135 fc_host_post_vendor_event(shost, fc_get_event_number(), 4136 sizeof(temp_event_data), 4137 (char *)&temp_event_data, 4138 SCSI_NL_VID_TYPE_PCI 4139 | PCI_VENDOR_ID_EMULEX); 4140 break; 4141 case LPFC_SLI_EVENT_TYPE_NORM_TEMP: 4142 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4143 temp_event_data.event_code = LPFC_NORMAL_TEMP; 4144 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4145 4146 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4147 "3191 Normal Temperature:%d Celsius - Port Name %c\n", 4148 acqe_sli->event_data1, port_name); 4149 4150 shost = lpfc_shost_from_vport(phba->pport); 4151 fc_host_post_vendor_event(shost, fc_get_event_number(), 4152 sizeof(temp_event_data), 4153 (char *)&temp_event_data, 4154 SCSI_NL_VID_TYPE_PCI 4155 | PCI_VENDOR_ID_EMULEX); 4156 break; 4157 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED: 4158 misconfigured = (struct lpfc_acqe_misconfigured_event *) 4159 &acqe_sli->event_data1; 4160 4161 /* fetch the status for this port */ 4162 switch (phba->sli4_hba.lnk_info.lnk_no) { 4163 case LPFC_LINK_NUMBER_0: 4164 status = bf_get(lpfc_sli_misconfigured_port0, 4165 &misconfigured->theEvent); 4166 break; 4167 case LPFC_LINK_NUMBER_1: 4168 status = bf_get(lpfc_sli_misconfigured_port1, 4169 &misconfigured->theEvent); 4170 break; 4171 case LPFC_LINK_NUMBER_2: 4172 status = bf_get(lpfc_sli_misconfigured_port2, 4173 &misconfigured->theEvent); 4174 break; 4175 case LPFC_LINK_NUMBER_3: 4176 status = bf_get(lpfc_sli_misconfigured_port3, 4177 &misconfigured->theEvent); 4178 break; 4179 default: 4180 status = ~LPFC_SLI_EVENT_STATUS_VALID; 4181 break; 4182 } 4183 4184 switch (status) { 4185 case LPFC_SLI_EVENT_STATUS_VALID: 4186 return; /* no message if the sfp is okay */ 4187 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 4188 sprintf(message, "Optics faulted/incorrectly " 4189 "installed/not installed - Reseat optics, " 4190 "if issue not resolved, replace."); 4191 break; 4192 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 4193 sprintf(message, 4194 "Optics of two types installed - Remove one " 4195 "optic or install matching pair of optics."); 4196 break; 4197 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 4198 sprintf(message, "Incompatible optics - Replace with " 4199 "compatible optics for card to function."); 4200 break; 4201 default: 4202 /* firmware is reporting a status we don't know about */ 4203 sprintf(message, "Unknown event status x%02x", status); 4204 break; 4205 } 4206 4207 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4208 "3176 Misconfigured Physical Port - " 4209 "Port Name %c %s\n", port_name, message); 4210 break; 4211 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT: 4212 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4213 "3192 Remote DPort Test Initiated - " 4214 "Event Data1:x%08x Event Data2: x%08x\n", 4215 acqe_sli->event_data1, acqe_sli->event_data2); 4216 break; 4217 default: 4218 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4219 "3193 Async SLI event - Event Data1:x%08x Event Data2:" 4220 "x%08x SLI Event Type:%d\n", 4221 acqe_sli->event_data1, acqe_sli->event_data2, 4222 evt_type); 4223 break; 4224 } 4225 } 4226 4227 /** 4228 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 4229 * @vport: pointer to vport data structure. 4230 * 4231 * This routine is to perform Clear Virtual Link (CVL) on a vport in 4232 * response to a CVL event. 4233 * 4234 * Return the pointer to the ndlp with the vport if successful, otherwise 4235 * return NULL. 4236 **/ 4237 static struct lpfc_nodelist * 4238 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 4239 { 4240 struct lpfc_nodelist *ndlp; 4241 struct Scsi_Host *shost; 4242 struct lpfc_hba *phba; 4243 4244 if (!vport) 4245 return NULL; 4246 phba = vport->phba; 4247 if (!phba) 4248 return NULL; 4249 ndlp = lpfc_findnode_did(vport, Fabric_DID); 4250 if (!ndlp) { 4251 /* Cannot find existing Fabric ndlp, so allocate a new one */ 4252 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 4253 if (!ndlp) 4254 return 0; 4255 lpfc_nlp_init(vport, ndlp, Fabric_DID); 4256 /* Set the node type */ 4257 ndlp->nlp_type |= NLP_FABRIC; 4258 /* Put ndlp onto node list */ 4259 lpfc_enqueue_node(vport, ndlp); 4260 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4261 /* re-setup ndlp without removing from node list */ 4262 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 4263 if (!ndlp) 4264 return 0; 4265 } 4266 if ((phba->pport->port_state < LPFC_FLOGI) && 4267 (phba->pport->port_state != LPFC_VPORT_FAILED)) 4268 return NULL; 4269 /* If virtual link is not yet instantiated ignore CVL */ 4270 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 4271 && (vport->port_state != LPFC_VPORT_FAILED)) 4272 return NULL; 4273 shost = lpfc_shost_from_vport(vport); 4274 if (!shost) 4275 return NULL; 4276 lpfc_linkdown_port(vport); 4277 lpfc_cleanup_pending_mbox(vport); 4278 spin_lock_irq(shost->host_lock); 4279 vport->fc_flag |= FC_VPORT_CVL_RCVD; 4280 spin_unlock_irq(shost->host_lock); 4281 4282 return ndlp; 4283 } 4284 4285 /** 4286 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 4287 * @vport: pointer to lpfc hba data structure. 4288 * 4289 * This routine is to perform Clear Virtual Link (CVL) on all vports in 4290 * response to a FCF dead event. 4291 **/ 4292 static void 4293 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 4294 { 4295 struct lpfc_vport **vports; 4296 int i; 4297 4298 vports = lpfc_create_vport_work_array(phba); 4299 if (vports) 4300 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 4301 lpfc_sli4_perform_vport_cvl(vports[i]); 4302 lpfc_destroy_vport_work_array(phba, vports); 4303 } 4304 4305 /** 4306 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 4307 * @phba: pointer to lpfc hba data structure. 4308 * @acqe_link: pointer to the async fcoe completion queue entry. 4309 * 4310 * This routine is to handle the SLI4 asynchronous fcoe event. 4311 **/ 4312 static void 4313 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 4314 struct lpfc_acqe_fip *acqe_fip) 4315 { 4316 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 4317 int rc; 4318 struct lpfc_vport *vport; 4319 struct lpfc_nodelist *ndlp; 4320 struct Scsi_Host *shost; 4321 int active_vlink_present; 4322 struct lpfc_vport **vports; 4323 int i; 4324 4325 phba->fc_eventTag = acqe_fip->event_tag; 4326 phba->fcoe_eventtag = acqe_fip->event_tag; 4327 switch (event_type) { 4328 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 4329 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 4330 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 4331 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4332 LOG_DISCOVERY, 4333 "2546 New FCF event, evt_tag:x%x, " 4334 "index:x%x\n", 4335 acqe_fip->event_tag, 4336 acqe_fip->index); 4337 else 4338 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 4339 LOG_DISCOVERY, 4340 "2788 FCF param modified event, " 4341 "evt_tag:x%x, index:x%x\n", 4342 acqe_fip->event_tag, 4343 acqe_fip->index); 4344 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4345 /* 4346 * During period of FCF discovery, read the FCF 4347 * table record indexed by the event to update 4348 * FCF roundrobin failover eligible FCF bmask. 4349 */ 4350 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4351 LOG_DISCOVERY, 4352 "2779 Read FCF (x%x) for updating " 4353 "roundrobin FCF failover bmask\n", 4354 acqe_fip->index); 4355 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 4356 } 4357 4358 /* If the FCF discovery is in progress, do nothing. */ 4359 spin_lock_irq(&phba->hbalock); 4360 if (phba->hba_flag & FCF_TS_INPROG) { 4361 spin_unlock_irq(&phba->hbalock); 4362 break; 4363 } 4364 /* If fast FCF failover rescan event is pending, do nothing */ 4365 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 4366 spin_unlock_irq(&phba->hbalock); 4367 break; 4368 } 4369 4370 /* If the FCF has been in discovered state, do nothing. */ 4371 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 4372 spin_unlock_irq(&phba->hbalock); 4373 break; 4374 } 4375 spin_unlock_irq(&phba->hbalock); 4376 4377 /* Otherwise, scan the entire FCF table and re-discover SAN */ 4378 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4379 "2770 Start FCF table scan per async FCF " 4380 "event, evt_tag:x%x, index:x%x\n", 4381 acqe_fip->event_tag, acqe_fip->index); 4382 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 4383 LPFC_FCOE_FCF_GET_FIRST); 4384 if (rc) 4385 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4386 "2547 Issue FCF scan read FCF mailbox " 4387 "command failed (x%x)\n", rc); 4388 break; 4389 4390 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 4391 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4392 "2548 FCF Table full count 0x%x tag 0x%x\n", 4393 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 4394 acqe_fip->event_tag); 4395 break; 4396 4397 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 4398 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4399 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4400 "2549 FCF (x%x) disconnected from network, " 4401 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 4402 /* 4403 * If we are in the middle of FCF failover process, clear 4404 * the corresponding FCF bit in the roundrobin bitmap. 4405 */ 4406 spin_lock_irq(&phba->hbalock); 4407 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4408 spin_unlock_irq(&phba->hbalock); 4409 /* Update FLOGI FCF failover eligible FCF bmask */ 4410 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 4411 break; 4412 } 4413 spin_unlock_irq(&phba->hbalock); 4414 4415 /* If the event is not for currently used fcf do nothing */ 4416 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 4417 break; 4418 4419 /* 4420 * Otherwise, request the port to rediscover the entire FCF 4421 * table for a fast recovery from case that the current FCF 4422 * is no longer valid as we are not in the middle of FCF 4423 * failover process already. 4424 */ 4425 spin_lock_irq(&phba->hbalock); 4426 /* Mark the fast failover process in progress */ 4427 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 4428 spin_unlock_irq(&phba->hbalock); 4429 4430 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4431 "2771 Start FCF fast failover process due to " 4432 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 4433 "\n", acqe_fip->event_tag, acqe_fip->index); 4434 rc = lpfc_sli4_redisc_fcf_table(phba); 4435 if (rc) { 4436 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4437 LOG_DISCOVERY, 4438 "2772 Issue FCF rediscover mabilbox " 4439 "command failed, fail through to FCF " 4440 "dead event\n"); 4441 spin_lock_irq(&phba->hbalock); 4442 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 4443 spin_unlock_irq(&phba->hbalock); 4444 /* 4445 * Last resort will fail over by treating this 4446 * as a link down to FCF registration. 4447 */ 4448 lpfc_sli4_fcf_dead_failthrough(phba); 4449 } else { 4450 /* Reset FCF roundrobin bmask for new discovery */ 4451 lpfc_sli4_clear_fcf_rr_bmask(phba); 4452 /* 4453 * Handling fast FCF failover to a DEAD FCF event is 4454 * considered equalivant to receiving CVL to all vports. 4455 */ 4456 lpfc_sli4_perform_all_vport_cvl(phba); 4457 } 4458 break; 4459 case LPFC_FIP_EVENT_TYPE_CVL: 4460 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4461 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4462 "2718 Clear Virtual Link Received for VPI 0x%x" 4463 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 4464 4465 vport = lpfc_find_vport_by_vpid(phba, 4466 acqe_fip->index); 4467 ndlp = lpfc_sli4_perform_vport_cvl(vport); 4468 if (!ndlp) 4469 break; 4470 active_vlink_present = 0; 4471 4472 vports = lpfc_create_vport_work_array(phba); 4473 if (vports) { 4474 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 4475 i++) { 4476 if ((!(vports[i]->fc_flag & 4477 FC_VPORT_CVL_RCVD)) && 4478 (vports[i]->port_state > LPFC_FDISC)) { 4479 active_vlink_present = 1; 4480 break; 4481 } 4482 } 4483 lpfc_destroy_vport_work_array(phba, vports); 4484 } 4485 4486 if (active_vlink_present) { 4487 /* 4488 * If there are other active VLinks present, 4489 * re-instantiate the Vlink using FDISC. 4490 */ 4491 mod_timer(&ndlp->nlp_delayfunc, 4492 jiffies + msecs_to_jiffies(1000)); 4493 shost = lpfc_shost_from_vport(vport); 4494 spin_lock_irq(shost->host_lock); 4495 ndlp->nlp_flag |= NLP_DELAY_TMO; 4496 spin_unlock_irq(shost->host_lock); 4497 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 4498 vport->port_state = LPFC_FDISC; 4499 } else { 4500 /* 4501 * Otherwise, we request port to rediscover 4502 * the entire FCF table for a fast recovery 4503 * from possible case that the current FCF 4504 * is no longer valid if we are not already 4505 * in the FCF failover process. 4506 */ 4507 spin_lock_irq(&phba->hbalock); 4508 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4509 spin_unlock_irq(&phba->hbalock); 4510 break; 4511 } 4512 /* Mark the fast failover process in progress */ 4513 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 4514 spin_unlock_irq(&phba->hbalock); 4515 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4516 LOG_DISCOVERY, 4517 "2773 Start FCF failover per CVL, " 4518 "evt_tag:x%x\n", acqe_fip->event_tag); 4519 rc = lpfc_sli4_redisc_fcf_table(phba); 4520 if (rc) { 4521 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4522 LOG_DISCOVERY, 4523 "2774 Issue FCF rediscover " 4524 "mabilbox command failed, " 4525 "through to CVL event\n"); 4526 spin_lock_irq(&phba->hbalock); 4527 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 4528 spin_unlock_irq(&phba->hbalock); 4529 /* 4530 * Last resort will be re-try on the 4531 * the current registered FCF entry. 4532 */ 4533 lpfc_retry_pport_discovery(phba); 4534 } else 4535 /* 4536 * Reset FCF roundrobin bmask for new 4537 * discovery. 4538 */ 4539 lpfc_sli4_clear_fcf_rr_bmask(phba); 4540 } 4541 break; 4542 default: 4543 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4544 "0288 Unknown FCoE event type 0x%x event tag " 4545 "0x%x\n", event_type, acqe_fip->event_tag); 4546 break; 4547 } 4548 } 4549 4550 /** 4551 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 4552 * @phba: pointer to lpfc hba data structure. 4553 * @acqe_link: pointer to the async dcbx completion queue entry. 4554 * 4555 * This routine is to handle the SLI4 asynchronous dcbx event. 4556 **/ 4557 static void 4558 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 4559 struct lpfc_acqe_dcbx *acqe_dcbx) 4560 { 4561 phba->fc_eventTag = acqe_dcbx->event_tag; 4562 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4563 "0290 The SLI4 DCBX asynchronous event is not " 4564 "handled yet\n"); 4565 } 4566 4567 /** 4568 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 4569 * @phba: pointer to lpfc hba data structure. 4570 * @acqe_link: pointer to the async grp5 completion queue entry. 4571 * 4572 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 4573 * is an asynchronous notified of a logical link speed change. The Port 4574 * reports the logical link speed in units of 10Mbps. 4575 **/ 4576 static void 4577 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 4578 struct lpfc_acqe_grp5 *acqe_grp5) 4579 { 4580 uint16_t prev_ll_spd; 4581 4582 phba->fc_eventTag = acqe_grp5->event_tag; 4583 phba->fcoe_eventtag = acqe_grp5->event_tag; 4584 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 4585 phba->sli4_hba.link_state.logical_speed = 4586 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 4587 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4588 "2789 GRP5 Async Event: Updating logical link speed " 4589 "from %dMbps to %dMbps\n", prev_ll_spd, 4590 phba->sli4_hba.link_state.logical_speed); 4591 } 4592 4593 /** 4594 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 4595 * @phba: pointer to lpfc hba data structure. 4596 * 4597 * This routine is invoked by the worker thread to process all the pending 4598 * SLI4 asynchronous events. 4599 **/ 4600 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 4601 { 4602 struct lpfc_cq_event *cq_event; 4603 4604 /* First, declare the async event has been handled */ 4605 spin_lock_irq(&phba->hbalock); 4606 phba->hba_flag &= ~ASYNC_EVENT; 4607 spin_unlock_irq(&phba->hbalock); 4608 /* Now, handle all the async events */ 4609 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 4610 /* Get the first event from the head of the event queue */ 4611 spin_lock_irq(&phba->hbalock); 4612 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 4613 cq_event, struct lpfc_cq_event, list); 4614 spin_unlock_irq(&phba->hbalock); 4615 /* Process the asynchronous event */ 4616 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 4617 case LPFC_TRAILER_CODE_LINK: 4618 lpfc_sli4_async_link_evt(phba, 4619 &cq_event->cqe.acqe_link); 4620 break; 4621 case LPFC_TRAILER_CODE_FCOE: 4622 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 4623 break; 4624 case LPFC_TRAILER_CODE_DCBX: 4625 lpfc_sli4_async_dcbx_evt(phba, 4626 &cq_event->cqe.acqe_dcbx); 4627 break; 4628 case LPFC_TRAILER_CODE_GRP5: 4629 lpfc_sli4_async_grp5_evt(phba, 4630 &cq_event->cqe.acqe_grp5); 4631 break; 4632 case LPFC_TRAILER_CODE_FC: 4633 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 4634 break; 4635 case LPFC_TRAILER_CODE_SLI: 4636 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 4637 break; 4638 default: 4639 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4640 "1804 Invalid asynchrous event code: " 4641 "x%x\n", bf_get(lpfc_trailer_code, 4642 &cq_event->cqe.mcqe_cmpl)); 4643 break; 4644 } 4645 /* Free the completion event processed to the free pool */ 4646 lpfc_sli4_cq_event_release(phba, cq_event); 4647 } 4648 } 4649 4650 /** 4651 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 4652 * @phba: pointer to lpfc hba data structure. 4653 * 4654 * This routine is invoked by the worker thread to process FCF table 4655 * rediscovery pending completion event. 4656 **/ 4657 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 4658 { 4659 int rc; 4660 4661 spin_lock_irq(&phba->hbalock); 4662 /* Clear FCF rediscovery timeout event */ 4663 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 4664 /* Clear driver fast failover FCF record flag */ 4665 phba->fcf.failover_rec.flag = 0; 4666 /* Set state for FCF fast failover */ 4667 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 4668 spin_unlock_irq(&phba->hbalock); 4669 4670 /* Scan FCF table from the first entry to re-discover SAN */ 4671 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4672 "2777 Start post-quiescent FCF table scan\n"); 4673 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 4674 if (rc) 4675 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4676 "2747 Issue FCF scan read FCF mailbox " 4677 "command failed 0x%x\n", rc); 4678 } 4679 4680 /** 4681 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 4682 * @phba: pointer to lpfc hba data structure. 4683 * @dev_grp: The HBA PCI-Device group number. 4684 * 4685 * This routine is invoked to set up the per HBA PCI-Device group function 4686 * API jump table entries. 4687 * 4688 * Return: 0 if success, otherwise -ENODEV 4689 **/ 4690 int 4691 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4692 { 4693 int rc; 4694 4695 /* Set up lpfc PCI-device group */ 4696 phba->pci_dev_grp = dev_grp; 4697 4698 /* The LPFC_PCI_DEV_OC uses SLI4 */ 4699 if (dev_grp == LPFC_PCI_DEV_OC) 4700 phba->sli_rev = LPFC_SLI_REV4; 4701 4702 /* Set up device INIT API function jump table */ 4703 rc = lpfc_init_api_table_setup(phba, dev_grp); 4704 if (rc) 4705 return -ENODEV; 4706 /* Set up SCSI API function jump table */ 4707 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 4708 if (rc) 4709 return -ENODEV; 4710 /* Set up SLI API function jump table */ 4711 rc = lpfc_sli_api_table_setup(phba, dev_grp); 4712 if (rc) 4713 return -ENODEV; 4714 /* Set up MBOX API function jump table */ 4715 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 4716 if (rc) 4717 return -ENODEV; 4718 4719 return 0; 4720 } 4721 4722 /** 4723 * lpfc_log_intr_mode - Log the active interrupt mode 4724 * @phba: pointer to lpfc hba data structure. 4725 * @intr_mode: active interrupt mode adopted. 4726 * 4727 * This routine it invoked to log the currently used active interrupt mode 4728 * to the device. 4729 **/ 4730 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 4731 { 4732 switch (intr_mode) { 4733 case 0: 4734 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4735 "0470 Enable INTx interrupt mode.\n"); 4736 break; 4737 case 1: 4738 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4739 "0481 Enabled MSI interrupt mode.\n"); 4740 break; 4741 case 2: 4742 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4743 "0480 Enabled MSI-X interrupt mode.\n"); 4744 break; 4745 default: 4746 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4747 "0482 Illegal interrupt mode.\n"); 4748 break; 4749 } 4750 return; 4751 } 4752 4753 /** 4754 * lpfc_enable_pci_dev - Enable a generic PCI device. 4755 * @phba: pointer to lpfc hba data structure. 4756 * 4757 * This routine is invoked to enable the PCI device that is common to all 4758 * PCI devices. 4759 * 4760 * Return codes 4761 * 0 - successful 4762 * other values - error 4763 **/ 4764 static int 4765 lpfc_enable_pci_dev(struct lpfc_hba *phba) 4766 { 4767 struct pci_dev *pdev; 4768 int bars = 0; 4769 4770 /* Obtain PCI device reference */ 4771 if (!phba->pcidev) 4772 goto out_error; 4773 else 4774 pdev = phba->pcidev; 4775 /* Select PCI BARs */ 4776 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4777 /* Enable PCI device */ 4778 if (pci_enable_device_mem(pdev)) 4779 goto out_error; 4780 /* Request PCI resource for the device */ 4781 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 4782 goto out_disable_device; 4783 /* Set up device as PCI master and save state for EEH */ 4784 pci_set_master(pdev); 4785 pci_try_set_mwi(pdev); 4786 pci_save_state(pdev); 4787 4788 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 4789 if (pci_is_pcie(pdev)) 4790 pdev->needs_freset = 1; 4791 4792 return 0; 4793 4794 out_disable_device: 4795 pci_disable_device(pdev); 4796 out_error: 4797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4798 "1401 Failed to enable pci device, bars:x%x\n", bars); 4799 return -ENODEV; 4800 } 4801 4802 /** 4803 * lpfc_disable_pci_dev - Disable a generic PCI device. 4804 * @phba: pointer to lpfc hba data structure. 4805 * 4806 * This routine is invoked to disable the PCI device that is common to all 4807 * PCI devices. 4808 **/ 4809 static void 4810 lpfc_disable_pci_dev(struct lpfc_hba *phba) 4811 { 4812 struct pci_dev *pdev; 4813 int bars; 4814 4815 /* Obtain PCI device reference */ 4816 if (!phba->pcidev) 4817 return; 4818 else 4819 pdev = phba->pcidev; 4820 /* Select PCI BARs */ 4821 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4822 /* Release PCI resource and disable PCI device */ 4823 pci_release_selected_regions(pdev, bars); 4824 pci_disable_device(pdev); 4825 4826 return; 4827 } 4828 4829 /** 4830 * lpfc_reset_hba - Reset a hba 4831 * @phba: pointer to lpfc hba data structure. 4832 * 4833 * This routine is invoked to reset a hba device. It brings the HBA 4834 * offline, performs a board restart, and then brings the board back 4835 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 4836 * on outstanding mailbox commands. 4837 **/ 4838 void 4839 lpfc_reset_hba(struct lpfc_hba *phba) 4840 { 4841 /* If resets are disabled then set error state and return. */ 4842 if (!phba->cfg_enable_hba_reset) { 4843 phba->link_state = LPFC_HBA_ERROR; 4844 return; 4845 } 4846 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) 4847 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 4848 else 4849 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 4850 lpfc_offline(phba); 4851 lpfc_sli_brdrestart(phba); 4852 lpfc_online(phba); 4853 lpfc_unblock_mgmt_io(phba); 4854 } 4855 4856 /** 4857 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 4858 * @phba: pointer to lpfc hba data structure. 4859 * 4860 * This function enables the PCI SR-IOV virtual functions to a physical 4861 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4862 * enable the number of virtual functions to the physical function. As 4863 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4864 * API call does not considered as an error condition for most of the device. 4865 **/ 4866 uint16_t 4867 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 4868 { 4869 struct pci_dev *pdev = phba->pcidev; 4870 uint16_t nr_virtfn; 4871 int pos; 4872 4873 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 4874 if (pos == 0) 4875 return 0; 4876 4877 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 4878 return nr_virtfn; 4879 } 4880 4881 /** 4882 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 4883 * @phba: pointer to lpfc hba data structure. 4884 * @nr_vfn: number of virtual functions to be enabled. 4885 * 4886 * This function enables the PCI SR-IOV virtual functions to a physical 4887 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4888 * enable the number of virtual functions to the physical function. As 4889 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4890 * API call does not considered as an error condition for most of the device. 4891 **/ 4892 int 4893 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 4894 { 4895 struct pci_dev *pdev = phba->pcidev; 4896 uint16_t max_nr_vfn; 4897 int rc; 4898 4899 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 4900 if (nr_vfn > max_nr_vfn) { 4901 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4902 "3057 Requested vfs (%d) greater than " 4903 "supported vfs (%d)", nr_vfn, max_nr_vfn); 4904 return -EINVAL; 4905 } 4906 4907 rc = pci_enable_sriov(pdev, nr_vfn); 4908 if (rc) { 4909 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4910 "2806 Failed to enable sriov on this device " 4911 "with vfn number nr_vf:%d, rc:%d\n", 4912 nr_vfn, rc); 4913 } else 4914 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4915 "2807 Successful enable sriov on this device " 4916 "with vfn number nr_vf:%d\n", nr_vfn); 4917 return rc; 4918 } 4919 4920 /** 4921 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 4922 * @phba: pointer to lpfc hba data structure. 4923 * 4924 * This routine is invoked to set up the driver internal resources specific to 4925 * support the SLI-3 HBA device it attached to. 4926 * 4927 * Return codes 4928 * 0 - successful 4929 * other values - error 4930 **/ 4931 static int 4932 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 4933 { 4934 struct lpfc_sli *psli; 4935 int rc; 4936 4937 /* 4938 * Initialize timers used by driver 4939 */ 4940 4941 /* Heartbeat timer */ 4942 init_timer(&phba->hb_tmofunc); 4943 phba->hb_tmofunc.function = lpfc_hb_timeout; 4944 phba->hb_tmofunc.data = (unsigned long)phba; 4945 4946 psli = &phba->sli; 4947 /* MBOX heartbeat timer */ 4948 init_timer(&psli->mbox_tmo); 4949 psli->mbox_tmo.function = lpfc_mbox_timeout; 4950 psli->mbox_tmo.data = (unsigned long) phba; 4951 /* FCP polling mode timer */ 4952 init_timer(&phba->fcp_poll_timer); 4953 phba->fcp_poll_timer.function = lpfc_poll_timeout; 4954 phba->fcp_poll_timer.data = (unsigned long) phba; 4955 /* Fabric block timer */ 4956 init_timer(&phba->fabric_block_timer); 4957 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4958 phba->fabric_block_timer.data = (unsigned long) phba; 4959 /* EA polling mode timer */ 4960 init_timer(&phba->eratt_poll); 4961 phba->eratt_poll.function = lpfc_poll_eratt; 4962 phba->eratt_poll.data = (unsigned long) phba; 4963 4964 /* Host attention work mask setup */ 4965 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 4966 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 4967 4968 /* Get all the module params for configuring this host */ 4969 lpfc_get_cfgparam(phba); 4970 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 4971 phba->menlo_flag |= HBA_MENLO_SUPPORT; 4972 /* check for menlo minimum sg count */ 4973 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 4974 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 4975 } 4976 4977 if (!phba->sli.ring) 4978 phba->sli.ring = (struct lpfc_sli_ring *) 4979 kzalloc(LPFC_SLI3_MAX_RING * 4980 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 4981 if (!phba->sli.ring) 4982 return -ENOMEM; 4983 4984 /* 4985 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 4986 * used to create the sg_dma_buf_pool must be dynamically calculated. 4987 */ 4988 4989 /* Initialize the host templates the configured values. */ 4990 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4991 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4992 4993 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ 4994 if (phba->cfg_enable_bg) { 4995 /* 4996 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 4997 * the FCP rsp, and a BDE for each. Sice we have no control 4998 * over how many protection data segments the SCSI Layer 4999 * will hand us (ie: there could be one for every block 5000 * in the IO), we just allocate enough BDEs to accomidate 5001 * our max amount and we need to limit lpfc_sg_seg_cnt to 5002 * minimize the risk of running out. 5003 */ 5004 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5005 sizeof(struct fcp_rsp) + 5006 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64)); 5007 5008 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF) 5009 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF; 5010 5011 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */ 5012 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT; 5013 } else { 5014 /* 5015 * The scsi_buf for a regular I/O will hold the FCP cmnd, 5016 * the FCP rsp, a BDE for each, and a BDE for up to 5017 * cfg_sg_seg_cnt data segments. 5018 */ 5019 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5020 sizeof(struct fcp_rsp) + 5021 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 5022 5023 /* Total BDEs in BPL for scsi_sg_list */ 5024 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5025 } 5026 5027 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5028 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n", 5029 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5030 phba->cfg_total_seg_cnt); 5031 5032 phba->max_vpi = LPFC_MAX_VPI; 5033 /* This will be set to correct value after config_port mbox */ 5034 phba->max_vports = 0; 5035 5036 /* 5037 * Initialize the SLI Layer to run with lpfc HBAs. 5038 */ 5039 lpfc_sli_setup(phba); 5040 lpfc_sli_queue_setup(phba); 5041 5042 /* Allocate device driver memory */ 5043 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 5044 return -ENOMEM; 5045 5046 /* 5047 * Enable sr-iov virtual functions if supported and configured 5048 * through the module parameter. 5049 */ 5050 if (phba->cfg_sriov_nr_virtfn > 0) { 5051 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5052 phba->cfg_sriov_nr_virtfn); 5053 if (rc) { 5054 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5055 "2808 Requested number of SR-IOV " 5056 "virtual functions (%d) is not " 5057 "supported\n", 5058 phba->cfg_sriov_nr_virtfn); 5059 phba->cfg_sriov_nr_virtfn = 0; 5060 } 5061 } 5062 5063 return 0; 5064 } 5065 5066 /** 5067 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 5068 * @phba: pointer to lpfc hba data structure. 5069 * 5070 * This routine is invoked to unset the driver internal resources set up 5071 * specific for supporting the SLI-3 HBA device it attached to. 5072 **/ 5073 static void 5074 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 5075 { 5076 /* Free device driver memory allocated */ 5077 lpfc_mem_free_all(phba); 5078 5079 return; 5080 } 5081 5082 /** 5083 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 5084 * @phba: pointer to lpfc hba data structure. 5085 * 5086 * This routine is invoked to set up the driver internal resources specific to 5087 * support the SLI-4 HBA device it attached to. 5088 * 5089 * Return codes 5090 * 0 - successful 5091 * other values - error 5092 **/ 5093 static int 5094 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 5095 { 5096 struct lpfc_vector_map_info *cpup; 5097 struct lpfc_sli *psli; 5098 LPFC_MBOXQ_t *mboxq; 5099 int rc, i, hbq_count, max_buf_size; 5100 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 5101 struct lpfc_mqe *mqe; 5102 int longs; 5103 int fof_vectors = 0; 5104 5105 /* Get all the module params for configuring this host */ 5106 lpfc_get_cfgparam(phba); 5107 5108 /* Before proceed, wait for POST done and device ready */ 5109 rc = lpfc_sli4_post_status_check(phba); 5110 if (rc) 5111 return -ENODEV; 5112 5113 /* 5114 * Initialize timers used by driver 5115 */ 5116 5117 /* Heartbeat timer */ 5118 init_timer(&phba->hb_tmofunc); 5119 phba->hb_tmofunc.function = lpfc_hb_timeout; 5120 phba->hb_tmofunc.data = (unsigned long)phba; 5121 init_timer(&phba->rrq_tmr); 5122 phba->rrq_tmr.function = lpfc_rrq_timeout; 5123 phba->rrq_tmr.data = (unsigned long)phba; 5124 5125 psli = &phba->sli; 5126 /* MBOX heartbeat timer */ 5127 init_timer(&psli->mbox_tmo); 5128 psli->mbox_tmo.function = lpfc_mbox_timeout; 5129 psli->mbox_tmo.data = (unsigned long) phba; 5130 /* Fabric block timer */ 5131 init_timer(&phba->fabric_block_timer); 5132 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 5133 phba->fabric_block_timer.data = (unsigned long) phba; 5134 /* EA polling mode timer */ 5135 init_timer(&phba->eratt_poll); 5136 phba->eratt_poll.function = lpfc_poll_eratt; 5137 phba->eratt_poll.data = (unsigned long) phba; 5138 /* FCF rediscover timer */ 5139 init_timer(&phba->fcf.redisc_wait); 5140 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 5141 phba->fcf.redisc_wait.data = (unsigned long)phba; 5142 5143 /* 5144 * Control structure for handling external multi-buffer mailbox 5145 * command pass-through. 5146 */ 5147 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 5148 sizeof(struct lpfc_mbox_ext_buf_ctx)); 5149 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 5150 5151 phba->max_vpi = LPFC_MAX_VPI; 5152 5153 /* This will be set to correct value after the read_config mbox */ 5154 phba->max_vports = 0; 5155 5156 /* Program the default value of vlan_id and fc_map */ 5157 phba->valid_vlan = 0; 5158 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 5159 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 5160 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 5161 5162 /* 5163 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 5164 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple. 5165 */ 5166 if (!phba->sli.ring) 5167 phba->sli.ring = kzalloc( 5168 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) * 5169 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 5170 if (!phba->sli.ring) 5171 return -ENOMEM; 5172 5173 /* 5174 * It doesn't matter what family our adapter is in, we are 5175 * limited to 2 Pages, 512 SGEs, for our SGL. 5176 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp 5177 */ 5178 max_buf_size = (2 * SLI4_PAGE_SIZE); 5179 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2) 5180 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2; 5181 5182 /* 5183 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 5184 * used to create the sg_dma_buf_pool must be dynamically calculated. 5185 */ 5186 5187 if (phba->cfg_enable_bg) { 5188 /* 5189 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 5190 * the FCP rsp, and a SGE for each. Sice we have no control 5191 * over how many protection data segments the SCSI Layer 5192 * will hand us (ie: there could be one for every block 5193 * in the IO), we just allocate enough SGEs to accomidate 5194 * our max amount and we need to limit lpfc_sg_seg_cnt to 5195 * minimize the risk of running out. 5196 */ 5197 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5198 sizeof(struct fcp_rsp) + max_buf_size; 5199 5200 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ 5201 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; 5202 5203 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF) 5204 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF; 5205 } else { 5206 /* 5207 * The scsi_buf for a regular I/O will hold the FCP cmnd, 5208 * the FCP rsp, a SGE for each, and a SGE for up to 5209 * cfg_sg_seg_cnt data segments. 5210 */ 5211 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5212 sizeof(struct fcp_rsp) + 5213 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)); 5214 5215 /* Total SGEs for scsi_sg_list */ 5216 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5217 /* 5218 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need 5219 * to post 1 page for the SGL. 5220 */ 5221 } 5222 5223 /* Initialize the host templates with the updated values. */ 5224 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5225 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5226 5227 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) 5228 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; 5229 else 5230 phba->cfg_sg_dma_buf_size = 5231 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); 5232 5233 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5234 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n", 5235 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5236 phba->cfg_total_seg_cnt); 5237 5238 /* Initialize buffer queue management fields */ 5239 hbq_count = lpfc_sli_hbq_count(); 5240 for (i = 0; i < hbq_count; ++i) 5241 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5242 INIT_LIST_HEAD(&phba->rb_pend_list); 5243 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 5244 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 5245 5246 /* 5247 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 5248 */ 5249 /* Initialize the Abort scsi buffer list used by driver */ 5250 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 5251 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 5252 /* This abort list used by worker thread */ 5253 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 5254 5255 /* 5256 * Initialize driver internal slow-path work queues 5257 */ 5258 5259 /* Driver internel slow-path CQ Event pool */ 5260 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 5261 /* Response IOCB work queue list */ 5262 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 5263 /* Asynchronous event CQ Event work queue list */ 5264 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 5265 /* Fast-path XRI aborted CQ Event work queue list */ 5266 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 5267 /* Slow-path XRI aborted CQ Event work queue list */ 5268 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 5269 /* Receive queue CQ Event work queue list */ 5270 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 5271 5272 /* Initialize extent block lists. */ 5273 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 5274 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 5275 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 5276 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 5277 5278 /* Initialize the driver internal SLI layer lists. */ 5279 lpfc_sli_setup(phba); 5280 lpfc_sli_queue_setup(phba); 5281 5282 /* Allocate device driver memory */ 5283 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 5284 if (rc) 5285 return -ENOMEM; 5286 5287 /* IF Type 2 ports get initialized now. */ 5288 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5289 LPFC_SLI_INTF_IF_TYPE_2) { 5290 rc = lpfc_pci_function_reset(phba); 5291 if (unlikely(rc)) 5292 return -ENODEV; 5293 phba->temp_sensor_support = 1; 5294 } 5295 5296 /* Create the bootstrap mailbox command */ 5297 rc = lpfc_create_bootstrap_mbox(phba); 5298 if (unlikely(rc)) 5299 goto out_free_mem; 5300 5301 /* Set up the host's endian order with the device. */ 5302 rc = lpfc_setup_endian_order(phba); 5303 if (unlikely(rc)) 5304 goto out_free_bsmbx; 5305 5306 /* Set up the hba's configuration parameters. */ 5307 rc = lpfc_sli4_read_config(phba); 5308 if (unlikely(rc)) 5309 goto out_free_bsmbx; 5310 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba); 5311 if (unlikely(rc)) 5312 goto out_free_bsmbx; 5313 5314 /* IF Type 0 ports get initialized now. */ 5315 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5316 LPFC_SLI_INTF_IF_TYPE_0) { 5317 rc = lpfc_pci_function_reset(phba); 5318 if (unlikely(rc)) 5319 goto out_free_bsmbx; 5320 } 5321 5322 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 5323 GFP_KERNEL); 5324 if (!mboxq) { 5325 rc = -ENOMEM; 5326 goto out_free_bsmbx; 5327 } 5328 5329 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 5330 lpfc_supported_pages(mboxq); 5331 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5332 if (!rc) { 5333 mqe = &mboxq->u.mqe; 5334 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 5335 LPFC_MAX_SUPPORTED_PAGES); 5336 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 5337 switch (pn_page[i]) { 5338 case LPFC_SLI4_PARAMETERS: 5339 phba->sli4_hba.pc_sli4_params.supported = 1; 5340 break; 5341 default: 5342 break; 5343 } 5344 } 5345 /* Read the port's SLI4 Parameters capabilities if supported. */ 5346 if (phba->sli4_hba.pc_sli4_params.supported) 5347 rc = lpfc_pc_sli4_params_get(phba, mboxq); 5348 if (rc) { 5349 mempool_free(mboxq, phba->mbox_mem_pool); 5350 rc = -EIO; 5351 goto out_free_bsmbx; 5352 } 5353 } 5354 /* 5355 * Get sli4 parameters that override parameters from Port capabilities. 5356 * If this call fails, it isn't critical unless the SLI4 parameters come 5357 * back in conflict. 5358 */ 5359 rc = lpfc_get_sli4_parameters(phba, mboxq); 5360 if (rc) { 5361 if (phba->sli4_hba.extents_in_use && 5362 phba->sli4_hba.rpi_hdrs_in_use) { 5363 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5364 "2999 Unsupported SLI4 Parameters " 5365 "Extents and RPI headers enabled.\n"); 5366 goto out_free_bsmbx; 5367 } 5368 } 5369 mempool_free(mboxq, phba->mbox_mem_pool); 5370 5371 /* Verify OAS is supported */ 5372 lpfc_sli4_oas_verify(phba); 5373 if (phba->cfg_fof) 5374 fof_vectors = 1; 5375 5376 /* Verify all the SLI4 queues */ 5377 rc = lpfc_sli4_queue_verify(phba); 5378 if (rc) 5379 goto out_free_bsmbx; 5380 5381 /* Create driver internal CQE event pool */ 5382 rc = lpfc_sli4_cq_event_pool_create(phba); 5383 if (rc) 5384 goto out_free_bsmbx; 5385 5386 /* Initialize sgl lists per host */ 5387 lpfc_init_sgl_list(phba); 5388 5389 /* Allocate and initialize active sgl array */ 5390 rc = lpfc_init_active_sgl_array(phba); 5391 if (rc) { 5392 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5393 "1430 Failed to initialize sgl list.\n"); 5394 goto out_destroy_cq_event_pool; 5395 } 5396 rc = lpfc_sli4_init_rpi_hdrs(phba); 5397 if (rc) { 5398 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5399 "1432 Failed to initialize rpi headers.\n"); 5400 goto out_free_active_sgl; 5401 } 5402 5403 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 5404 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 5405 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 5406 GFP_KERNEL); 5407 if (!phba->fcf.fcf_rr_bmask) { 5408 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5409 "2759 Failed allocate memory for FCF round " 5410 "robin failover bmask\n"); 5411 rc = -ENOMEM; 5412 goto out_remove_rpi_hdrs; 5413 } 5414 5415 phba->sli4_hba.fcp_eq_hdl = 5416 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 5417 (fof_vectors + phba->cfg_fcp_io_channel)), 5418 GFP_KERNEL); 5419 if (!phba->sli4_hba.fcp_eq_hdl) { 5420 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5421 "2572 Failed allocate memory for " 5422 "fast-path per-EQ handle array\n"); 5423 rc = -ENOMEM; 5424 goto out_free_fcf_rr_bmask; 5425 } 5426 5427 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 5428 (fof_vectors + 5429 phba->cfg_fcp_io_channel)), GFP_KERNEL); 5430 if (!phba->sli4_hba.msix_entries) { 5431 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5432 "2573 Failed allocate memory for msi-x " 5433 "interrupt vector entries\n"); 5434 rc = -ENOMEM; 5435 goto out_free_fcp_eq_hdl; 5436 } 5437 5438 phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) * 5439 phba->sli4_hba.num_present_cpu), 5440 GFP_KERNEL); 5441 if (!phba->sli4_hba.cpu_map) { 5442 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5443 "3327 Failed allocate memory for msi-x " 5444 "interrupt vector mapping\n"); 5445 rc = -ENOMEM; 5446 goto out_free_msix; 5447 } 5448 if (lpfc_used_cpu == NULL) { 5449 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu), 5450 GFP_KERNEL); 5451 if (!lpfc_used_cpu) { 5452 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5453 "3335 Failed allocate memory for msi-x " 5454 "interrupt vector mapping\n"); 5455 kfree(phba->sli4_hba.cpu_map); 5456 rc = -ENOMEM; 5457 goto out_free_msix; 5458 } 5459 for (i = 0; i < lpfc_present_cpu; i++) 5460 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY; 5461 } 5462 5463 /* Initialize io channels for round robin */ 5464 cpup = phba->sli4_hba.cpu_map; 5465 rc = 0; 5466 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 5467 cpup->channel_id = rc; 5468 rc++; 5469 if (rc >= phba->cfg_fcp_io_channel) 5470 rc = 0; 5471 } 5472 5473 /* 5474 * Enable sr-iov virtual functions if supported and configured 5475 * through the module parameter. 5476 */ 5477 if (phba->cfg_sriov_nr_virtfn > 0) { 5478 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5479 phba->cfg_sriov_nr_virtfn); 5480 if (rc) { 5481 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5482 "3020 Requested number of SR-IOV " 5483 "virtual functions (%d) is not " 5484 "supported\n", 5485 phba->cfg_sriov_nr_virtfn); 5486 phba->cfg_sriov_nr_virtfn = 0; 5487 } 5488 } 5489 5490 return 0; 5491 5492 out_free_msix: 5493 kfree(phba->sli4_hba.msix_entries); 5494 out_free_fcp_eq_hdl: 5495 kfree(phba->sli4_hba.fcp_eq_hdl); 5496 out_free_fcf_rr_bmask: 5497 kfree(phba->fcf.fcf_rr_bmask); 5498 out_remove_rpi_hdrs: 5499 lpfc_sli4_remove_rpi_hdrs(phba); 5500 out_free_active_sgl: 5501 lpfc_free_active_sgl(phba); 5502 out_destroy_cq_event_pool: 5503 lpfc_sli4_cq_event_pool_destroy(phba); 5504 out_free_bsmbx: 5505 lpfc_destroy_bootstrap_mbox(phba); 5506 out_free_mem: 5507 lpfc_mem_free(phba); 5508 return rc; 5509 } 5510 5511 /** 5512 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 5513 * @phba: pointer to lpfc hba data structure. 5514 * 5515 * This routine is invoked to unset the driver internal resources set up 5516 * specific for supporting the SLI-4 HBA device it attached to. 5517 **/ 5518 static void 5519 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 5520 { 5521 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 5522 5523 /* Free memory allocated for msi-x interrupt vector to CPU mapping */ 5524 kfree(phba->sli4_hba.cpu_map); 5525 phba->sli4_hba.num_present_cpu = 0; 5526 phba->sli4_hba.num_online_cpu = 0; 5527 phba->sli4_hba.curr_disp_cpu = 0; 5528 5529 /* Free memory allocated for msi-x interrupt vector entries */ 5530 kfree(phba->sli4_hba.msix_entries); 5531 5532 /* Free memory allocated for fast-path work queue handles */ 5533 kfree(phba->sli4_hba.fcp_eq_hdl); 5534 5535 /* Free the allocated rpi headers. */ 5536 lpfc_sli4_remove_rpi_hdrs(phba); 5537 lpfc_sli4_remove_rpis(phba); 5538 5539 /* Free eligible FCF index bmask */ 5540 kfree(phba->fcf.fcf_rr_bmask); 5541 5542 /* Free the ELS sgl list */ 5543 lpfc_free_active_sgl(phba); 5544 lpfc_free_els_sgl_list(phba); 5545 5546 /* Free the completion queue EQ event pool */ 5547 lpfc_sli4_cq_event_release_all(phba); 5548 lpfc_sli4_cq_event_pool_destroy(phba); 5549 5550 /* Release resource identifiers. */ 5551 lpfc_sli4_dealloc_resource_identifiers(phba); 5552 5553 /* Free the bsmbx region. */ 5554 lpfc_destroy_bootstrap_mbox(phba); 5555 5556 /* Free the SLI Layer memory with SLI4 HBAs */ 5557 lpfc_mem_free_all(phba); 5558 5559 /* Free the current connect table */ 5560 list_for_each_entry_safe(conn_entry, next_conn_entry, 5561 &phba->fcf_conn_rec_list, list) { 5562 list_del_init(&conn_entry->list); 5563 kfree(conn_entry); 5564 } 5565 5566 return; 5567 } 5568 5569 /** 5570 * lpfc_init_api_table_setup - Set up init api function jump table 5571 * @phba: The hba struct for which this call is being executed. 5572 * @dev_grp: The HBA PCI-Device group number. 5573 * 5574 * This routine sets up the device INIT interface API function jump table 5575 * in @phba struct. 5576 * 5577 * Returns: 0 - success, -ENODEV - failure. 5578 **/ 5579 int 5580 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5581 { 5582 phba->lpfc_hba_init_link = lpfc_hba_init_link; 5583 phba->lpfc_hba_down_link = lpfc_hba_down_link; 5584 phba->lpfc_selective_reset = lpfc_selective_reset; 5585 switch (dev_grp) { 5586 case LPFC_PCI_DEV_LP: 5587 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 5588 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 5589 phba->lpfc_stop_port = lpfc_stop_port_s3; 5590 break; 5591 case LPFC_PCI_DEV_OC: 5592 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 5593 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 5594 phba->lpfc_stop_port = lpfc_stop_port_s4; 5595 break; 5596 default: 5597 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5598 "1431 Invalid HBA PCI-device group: 0x%x\n", 5599 dev_grp); 5600 return -ENODEV; 5601 break; 5602 } 5603 return 0; 5604 } 5605 5606 /** 5607 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5608 * @phba: pointer to lpfc hba data structure. 5609 * 5610 * This routine is invoked to set up the driver internal resources before the 5611 * device specific resource setup to support the HBA device it attached to. 5612 * 5613 * Return codes 5614 * 0 - successful 5615 * other values - error 5616 **/ 5617 static int 5618 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5619 { 5620 /* 5621 * Driver resources common to all SLI revisions 5622 */ 5623 atomic_set(&phba->fast_event_count, 0); 5624 spin_lock_init(&phba->hbalock); 5625 5626 /* Initialize ndlp management spinlock */ 5627 spin_lock_init(&phba->ndlp_lock); 5628 5629 INIT_LIST_HEAD(&phba->port_list); 5630 INIT_LIST_HEAD(&phba->work_list); 5631 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5632 5633 /* Initialize the wait queue head for the kernel thread */ 5634 init_waitqueue_head(&phba->work_waitq); 5635 5636 /* Initialize the scsi buffer list used by driver for scsi IO */ 5637 spin_lock_init(&phba->scsi_buf_list_get_lock); 5638 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); 5639 spin_lock_init(&phba->scsi_buf_list_put_lock); 5640 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 5641 5642 /* Initialize the fabric iocb list */ 5643 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5644 5645 /* Initialize list to save ELS buffers */ 5646 INIT_LIST_HEAD(&phba->elsbuf); 5647 5648 /* Initialize FCF connection rec list */ 5649 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5650 5651 /* Initialize OAS configuration list */ 5652 spin_lock_init(&phba->devicelock); 5653 INIT_LIST_HEAD(&phba->luns); 5654 5655 return 0; 5656 } 5657 5658 /** 5659 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 5660 * @phba: pointer to lpfc hba data structure. 5661 * 5662 * This routine is invoked to set up the driver internal resources after the 5663 * device specific resource setup to support the HBA device it attached to. 5664 * 5665 * Return codes 5666 * 0 - successful 5667 * other values - error 5668 **/ 5669 static int 5670 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 5671 { 5672 int error; 5673 5674 /* Startup the kernel thread for this host adapter. */ 5675 phba->worker_thread = kthread_run(lpfc_do_work, phba, 5676 "lpfc_worker_%d", phba->brd_no); 5677 if (IS_ERR(phba->worker_thread)) { 5678 error = PTR_ERR(phba->worker_thread); 5679 return error; 5680 } 5681 5682 return 0; 5683 } 5684 5685 /** 5686 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 5687 * @phba: pointer to lpfc hba data structure. 5688 * 5689 * This routine is invoked to unset the driver internal resources set up after 5690 * the device specific resource setup for supporting the HBA device it 5691 * attached to. 5692 **/ 5693 static void 5694 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 5695 { 5696 /* Stop kernel worker thread */ 5697 kthread_stop(phba->worker_thread); 5698 } 5699 5700 /** 5701 * lpfc_free_iocb_list - Free iocb list. 5702 * @phba: pointer to lpfc hba data structure. 5703 * 5704 * This routine is invoked to free the driver's IOCB list and memory. 5705 **/ 5706 static void 5707 lpfc_free_iocb_list(struct lpfc_hba *phba) 5708 { 5709 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 5710 5711 spin_lock_irq(&phba->hbalock); 5712 list_for_each_entry_safe(iocbq_entry, iocbq_next, 5713 &phba->lpfc_iocb_list, list) { 5714 list_del(&iocbq_entry->list); 5715 kfree(iocbq_entry); 5716 phba->total_iocbq_bufs--; 5717 } 5718 spin_unlock_irq(&phba->hbalock); 5719 5720 return; 5721 } 5722 5723 /** 5724 * lpfc_init_iocb_list - Allocate and initialize iocb list. 5725 * @phba: pointer to lpfc hba data structure. 5726 * 5727 * This routine is invoked to allocate and initizlize the driver's IOCB 5728 * list and set up the IOCB tag array accordingly. 5729 * 5730 * Return codes 5731 * 0 - successful 5732 * other values - error 5733 **/ 5734 static int 5735 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 5736 { 5737 struct lpfc_iocbq *iocbq_entry = NULL; 5738 uint16_t iotag; 5739 int i; 5740 5741 /* Initialize and populate the iocb list per host. */ 5742 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 5743 for (i = 0; i < iocb_count; i++) { 5744 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 5745 if (iocbq_entry == NULL) { 5746 printk(KERN_ERR "%s: only allocated %d iocbs of " 5747 "expected %d count. Unloading driver.\n", 5748 __func__, i, LPFC_IOCB_LIST_CNT); 5749 goto out_free_iocbq; 5750 } 5751 5752 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 5753 if (iotag == 0) { 5754 kfree(iocbq_entry); 5755 printk(KERN_ERR "%s: failed to allocate IOTAG. " 5756 "Unloading driver.\n", __func__); 5757 goto out_free_iocbq; 5758 } 5759 iocbq_entry->sli4_lxritag = NO_XRI; 5760 iocbq_entry->sli4_xritag = NO_XRI; 5761 5762 spin_lock_irq(&phba->hbalock); 5763 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 5764 phba->total_iocbq_bufs++; 5765 spin_unlock_irq(&phba->hbalock); 5766 } 5767 5768 return 0; 5769 5770 out_free_iocbq: 5771 lpfc_free_iocb_list(phba); 5772 5773 return -ENOMEM; 5774 } 5775 5776 /** 5777 * lpfc_free_sgl_list - Free a given sgl list. 5778 * @phba: pointer to lpfc hba data structure. 5779 * @sglq_list: pointer to the head of sgl list. 5780 * 5781 * This routine is invoked to free a give sgl list and memory. 5782 **/ 5783 void 5784 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 5785 { 5786 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 5787 5788 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 5789 list_del(&sglq_entry->list); 5790 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 5791 kfree(sglq_entry); 5792 } 5793 } 5794 5795 /** 5796 * lpfc_free_els_sgl_list - Free els sgl list. 5797 * @phba: pointer to lpfc hba data structure. 5798 * 5799 * This routine is invoked to free the driver's els sgl list and memory. 5800 **/ 5801 static void 5802 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 5803 { 5804 LIST_HEAD(sglq_list); 5805 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; 5806 5807 /* Retrieve all els sgls from driver list */ 5808 spin_lock_irq(&phba->hbalock); 5809 spin_lock(&pring->ring_lock); 5810 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 5811 spin_unlock(&pring->ring_lock); 5812 spin_unlock_irq(&phba->hbalock); 5813 5814 /* Now free the sgl list */ 5815 lpfc_free_sgl_list(phba, &sglq_list); 5816 } 5817 5818 /** 5819 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 5820 * @phba: pointer to lpfc hba data structure. 5821 * 5822 * This routine is invoked to allocate the driver's active sgl memory. 5823 * This array will hold the sglq_entry's for active IOs. 5824 **/ 5825 static int 5826 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 5827 { 5828 int size; 5829 size = sizeof(struct lpfc_sglq *); 5830 size *= phba->sli4_hba.max_cfg_param.max_xri; 5831 5832 phba->sli4_hba.lpfc_sglq_active_list = 5833 kzalloc(size, GFP_KERNEL); 5834 if (!phba->sli4_hba.lpfc_sglq_active_list) 5835 return -ENOMEM; 5836 return 0; 5837 } 5838 5839 /** 5840 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 5841 * @phba: pointer to lpfc hba data structure. 5842 * 5843 * This routine is invoked to walk through the array of active sglq entries 5844 * and free all of the resources. 5845 * This is just a place holder for now. 5846 **/ 5847 static void 5848 lpfc_free_active_sgl(struct lpfc_hba *phba) 5849 { 5850 kfree(phba->sli4_hba.lpfc_sglq_active_list); 5851 } 5852 5853 /** 5854 * lpfc_init_sgl_list - Allocate and initialize sgl list. 5855 * @phba: pointer to lpfc hba data structure. 5856 * 5857 * This routine is invoked to allocate and initizlize the driver's sgl 5858 * list and set up the sgl xritag tag array accordingly. 5859 * 5860 **/ 5861 static void 5862 lpfc_init_sgl_list(struct lpfc_hba *phba) 5863 { 5864 /* Initialize and populate the sglq list per host/VF. */ 5865 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 5866 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 5867 5868 /* els xri-sgl book keeping */ 5869 phba->sli4_hba.els_xri_cnt = 0; 5870 5871 /* scsi xri-buffer book keeping */ 5872 phba->sli4_hba.scsi_xri_cnt = 0; 5873 } 5874 5875 /** 5876 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 5877 * @phba: pointer to lpfc hba data structure. 5878 * 5879 * This routine is invoked to post rpi header templates to the 5880 * port for those SLI4 ports that do not support extents. This routine 5881 * posts a PAGE_SIZE memory region to the port to hold up to 5882 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 5883 * and should be called only when interrupts are disabled. 5884 * 5885 * Return codes 5886 * 0 - successful 5887 * -ERROR - otherwise. 5888 **/ 5889 int 5890 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 5891 { 5892 int rc = 0; 5893 struct lpfc_rpi_hdr *rpi_hdr; 5894 5895 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 5896 if (!phba->sli4_hba.rpi_hdrs_in_use) 5897 return rc; 5898 if (phba->sli4_hba.extents_in_use) 5899 return -EIO; 5900 5901 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 5902 if (!rpi_hdr) { 5903 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 5904 "0391 Error during rpi post operation\n"); 5905 lpfc_sli4_remove_rpis(phba); 5906 rc = -ENODEV; 5907 } 5908 5909 return rc; 5910 } 5911 5912 /** 5913 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 5914 * @phba: pointer to lpfc hba data structure. 5915 * 5916 * This routine is invoked to allocate a single 4KB memory region to 5917 * support rpis and stores them in the phba. This single region 5918 * provides support for up to 64 rpis. The region is used globally 5919 * by the device. 5920 * 5921 * Returns: 5922 * A valid rpi hdr on success. 5923 * A NULL pointer on any failure. 5924 **/ 5925 struct lpfc_rpi_hdr * 5926 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 5927 { 5928 uint16_t rpi_limit, curr_rpi_range; 5929 struct lpfc_dmabuf *dmabuf; 5930 struct lpfc_rpi_hdr *rpi_hdr; 5931 uint32_t rpi_count; 5932 5933 /* 5934 * If the SLI4 port supports extents, posting the rpi header isn't 5935 * required. Set the expected maximum count and let the actual value 5936 * get set when extents are fully allocated. 5937 */ 5938 if (!phba->sli4_hba.rpi_hdrs_in_use) 5939 return NULL; 5940 if (phba->sli4_hba.extents_in_use) 5941 return NULL; 5942 5943 /* The limit on the logical index is just the max_rpi count. */ 5944 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 5945 phba->sli4_hba.max_cfg_param.max_rpi - 1; 5946 5947 spin_lock_irq(&phba->hbalock); 5948 /* 5949 * Establish the starting RPI in this header block. The starting 5950 * rpi is normalized to a zero base because the physical rpi is 5951 * port based. 5952 */ 5953 curr_rpi_range = phba->sli4_hba.next_rpi; 5954 spin_unlock_irq(&phba->hbalock); 5955 5956 /* 5957 * The port has a limited number of rpis. The increment here 5958 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 5959 * and to allow the full max_rpi range per port. 5960 */ 5961 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 5962 rpi_count = rpi_limit - curr_rpi_range; 5963 else 5964 rpi_count = LPFC_RPI_HDR_COUNT; 5965 5966 if (!rpi_count) 5967 return NULL; 5968 /* 5969 * First allocate the protocol header region for the port. The 5970 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 5971 */ 5972 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5973 if (!dmabuf) 5974 return NULL; 5975 5976 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, 5977 LPFC_HDR_TEMPLATE_SIZE, 5978 &dmabuf->phys, GFP_KERNEL); 5979 if (!dmabuf->virt) { 5980 rpi_hdr = NULL; 5981 goto err_free_dmabuf; 5982 } 5983 5984 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 5985 rpi_hdr = NULL; 5986 goto err_free_coherent; 5987 } 5988 5989 /* Save the rpi header data for cleanup later. */ 5990 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 5991 if (!rpi_hdr) 5992 goto err_free_coherent; 5993 5994 rpi_hdr->dmabuf = dmabuf; 5995 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 5996 rpi_hdr->page_count = 1; 5997 spin_lock_irq(&phba->hbalock); 5998 5999 /* The rpi_hdr stores the logical index only. */ 6000 rpi_hdr->start_rpi = curr_rpi_range; 6001 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 6002 6003 /* 6004 * The next_rpi stores the next logical module-64 rpi value used 6005 * to post physical rpis in subsequent rpi postings. 6006 */ 6007 phba->sli4_hba.next_rpi += rpi_count; 6008 spin_unlock_irq(&phba->hbalock); 6009 return rpi_hdr; 6010 6011 err_free_coherent: 6012 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 6013 dmabuf->virt, dmabuf->phys); 6014 err_free_dmabuf: 6015 kfree(dmabuf); 6016 return NULL; 6017 } 6018 6019 /** 6020 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 6021 * @phba: pointer to lpfc hba data structure. 6022 * 6023 * This routine is invoked to remove all memory resources allocated 6024 * to support rpis for SLI4 ports not supporting extents. This routine 6025 * presumes the caller has released all rpis consumed by fabric or port 6026 * logins and is prepared to have the header pages removed. 6027 **/ 6028 void 6029 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 6030 { 6031 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 6032 6033 if (!phba->sli4_hba.rpi_hdrs_in_use) 6034 goto exit; 6035 6036 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 6037 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 6038 list_del(&rpi_hdr->list); 6039 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 6040 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 6041 kfree(rpi_hdr->dmabuf); 6042 kfree(rpi_hdr); 6043 } 6044 exit: 6045 /* There are no rpis available to the port now. */ 6046 phba->sli4_hba.next_rpi = 0; 6047 } 6048 6049 /** 6050 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 6051 * @pdev: pointer to pci device data structure. 6052 * 6053 * This routine is invoked to allocate the driver hba data structure for an 6054 * HBA device. If the allocation is successful, the phba reference to the 6055 * PCI device data structure is set. 6056 * 6057 * Return codes 6058 * pointer to @phba - successful 6059 * NULL - error 6060 **/ 6061 static struct lpfc_hba * 6062 lpfc_hba_alloc(struct pci_dev *pdev) 6063 { 6064 struct lpfc_hba *phba; 6065 6066 /* Allocate memory for HBA structure */ 6067 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 6068 if (!phba) { 6069 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 6070 return NULL; 6071 } 6072 6073 /* Set reference to PCI device in HBA structure */ 6074 phba->pcidev = pdev; 6075 6076 /* Assign an unused board number */ 6077 phba->brd_no = lpfc_get_instance(); 6078 if (phba->brd_no < 0) { 6079 kfree(phba); 6080 return NULL; 6081 } 6082 6083 spin_lock_init(&phba->ct_ev_lock); 6084 INIT_LIST_HEAD(&phba->ct_ev_waiters); 6085 6086 return phba; 6087 } 6088 6089 /** 6090 * lpfc_hba_free - Free driver hba data structure with a device. 6091 * @phba: pointer to lpfc hba data structure. 6092 * 6093 * This routine is invoked to free the driver hba data structure with an 6094 * HBA device. 6095 **/ 6096 static void 6097 lpfc_hba_free(struct lpfc_hba *phba) 6098 { 6099 /* Release the driver assigned board number */ 6100 idr_remove(&lpfc_hba_index, phba->brd_no); 6101 6102 /* Free memory allocated with sli rings */ 6103 kfree(phba->sli.ring); 6104 phba->sli.ring = NULL; 6105 6106 kfree(phba); 6107 return; 6108 } 6109 6110 /** 6111 * lpfc_create_shost - Create hba physical port with associated scsi host. 6112 * @phba: pointer to lpfc hba data structure. 6113 * 6114 * This routine is invoked to create HBA physical port and associate a SCSI 6115 * host with it. 6116 * 6117 * Return codes 6118 * 0 - successful 6119 * other values - error 6120 **/ 6121 static int 6122 lpfc_create_shost(struct lpfc_hba *phba) 6123 { 6124 struct lpfc_vport *vport; 6125 struct Scsi_Host *shost; 6126 6127 /* Initialize HBA FC structure */ 6128 phba->fc_edtov = FF_DEF_EDTOV; 6129 phba->fc_ratov = FF_DEF_RATOV; 6130 phba->fc_altov = FF_DEF_ALTOV; 6131 phba->fc_arbtov = FF_DEF_ARBTOV; 6132 6133 atomic_set(&phba->sdev_cnt, 0); 6134 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 6135 if (!vport) 6136 return -ENODEV; 6137 6138 shost = lpfc_shost_from_vport(vport); 6139 phba->pport = vport; 6140 lpfc_debugfs_initialize(vport); 6141 /* Put reference to SCSI host to driver's device private data */ 6142 pci_set_drvdata(phba->pcidev, shost); 6143 6144 return 0; 6145 } 6146 6147 /** 6148 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 6149 * @phba: pointer to lpfc hba data structure. 6150 * 6151 * This routine is invoked to destroy HBA physical port and the associated 6152 * SCSI host. 6153 **/ 6154 static void 6155 lpfc_destroy_shost(struct lpfc_hba *phba) 6156 { 6157 struct lpfc_vport *vport = phba->pport; 6158 6159 /* Destroy physical port that associated with the SCSI host */ 6160 destroy_port(vport); 6161 6162 return; 6163 } 6164 6165 /** 6166 * lpfc_setup_bg - Setup Block guard structures and debug areas. 6167 * @phba: pointer to lpfc hba data structure. 6168 * @shost: the shost to be used to detect Block guard settings. 6169 * 6170 * This routine sets up the local Block guard protocol settings for @shost. 6171 * This routine also allocates memory for debugging bg buffers. 6172 **/ 6173 static void 6174 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 6175 { 6176 uint32_t old_mask; 6177 uint32_t old_guard; 6178 6179 int pagecnt = 10; 6180 if (lpfc_prot_mask && lpfc_prot_guard) { 6181 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6182 "1478 Registering BlockGuard with the " 6183 "SCSI layer\n"); 6184 6185 old_mask = lpfc_prot_mask; 6186 old_guard = lpfc_prot_guard; 6187 6188 /* Only allow supported values */ 6189 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 6190 SHOST_DIX_TYPE0_PROTECTION | 6191 SHOST_DIX_TYPE1_PROTECTION); 6192 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC); 6193 6194 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 6195 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 6196 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 6197 6198 if (lpfc_prot_mask && lpfc_prot_guard) { 6199 if ((old_mask != lpfc_prot_mask) || 6200 (old_guard != lpfc_prot_guard)) 6201 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6202 "1475 Registering BlockGuard with the " 6203 "SCSI layer: mask %d guard %d\n", 6204 lpfc_prot_mask, lpfc_prot_guard); 6205 6206 scsi_host_set_prot(shost, lpfc_prot_mask); 6207 scsi_host_set_guard(shost, lpfc_prot_guard); 6208 } else 6209 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6210 "1479 Not Registering BlockGuard with the SCSI " 6211 "layer, Bad protection parameters: %d %d\n", 6212 old_mask, old_guard); 6213 } 6214 6215 if (!_dump_buf_data) { 6216 while (pagecnt) { 6217 spin_lock_init(&_dump_buf_lock); 6218 _dump_buf_data = 6219 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 6220 if (_dump_buf_data) { 6221 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6222 "9043 BLKGRD: allocated %d pages for " 6223 "_dump_buf_data at 0x%p\n", 6224 (1 << pagecnt), _dump_buf_data); 6225 _dump_buf_data_order = pagecnt; 6226 memset(_dump_buf_data, 0, 6227 ((1 << PAGE_SHIFT) << pagecnt)); 6228 break; 6229 } else 6230 --pagecnt; 6231 } 6232 if (!_dump_buf_data_order) 6233 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6234 "9044 BLKGRD: ERROR unable to allocate " 6235 "memory for hexdump\n"); 6236 } else 6237 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6238 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 6239 "\n", _dump_buf_data); 6240 if (!_dump_buf_dif) { 6241 while (pagecnt) { 6242 _dump_buf_dif = 6243 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 6244 if (_dump_buf_dif) { 6245 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6246 "9046 BLKGRD: allocated %d pages for " 6247 "_dump_buf_dif at 0x%p\n", 6248 (1 << pagecnt), _dump_buf_dif); 6249 _dump_buf_dif_order = pagecnt; 6250 memset(_dump_buf_dif, 0, 6251 ((1 << PAGE_SHIFT) << pagecnt)); 6252 break; 6253 } else 6254 --pagecnt; 6255 } 6256 if (!_dump_buf_dif_order) 6257 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6258 "9047 BLKGRD: ERROR unable to allocate " 6259 "memory for hexdump\n"); 6260 } else 6261 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6262 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 6263 _dump_buf_dif); 6264 } 6265 6266 /** 6267 * lpfc_post_init_setup - Perform necessary device post initialization setup. 6268 * @phba: pointer to lpfc hba data structure. 6269 * 6270 * This routine is invoked to perform all the necessary post initialization 6271 * setup for the device. 6272 **/ 6273 static void 6274 lpfc_post_init_setup(struct lpfc_hba *phba) 6275 { 6276 struct Scsi_Host *shost; 6277 struct lpfc_adapter_event_header adapter_event; 6278 6279 /* Get the default values for Model Name and Description */ 6280 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 6281 6282 /* 6283 * hba setup may have changed the hba_queue_depth so we need to 6284 * adjust the value of can_queue. 6285 */ 6286 shost = pci_get_drvdata(phba->pcidev); 6287 shost->can_queue = phba->cfg_hba_queue_depth - 10; 6288 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 6289 lpfc_setup_bg(phba, shost); 6290 6291 lpfc_host_attrib_init(shost); 6292 6293 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 6294 spin_lock_irq(shost->host_lock); 6295 lpfc_poll_start_timer(phba); 6296 spin_unlock_irq(shost->host_lock); 6297 } 6298 6299 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6300 "0428 Perform SCSI scan\n"); 6301 /* Send board arrival event to upper layer */ 6302 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 6303 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 6304 fc_host_post_vendor_event(shost, fc_get_event_number(), 6305 sizeof(adapter_event), 6306 (char *) &adapter_event, 6307 LPFC_NL_VENDOR_ID); 6308 return; 6309 } 6310 6311 /** 6312 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 6313 * @phba: pointer to lpfc hba data structure. 6314 * 6315 * This routine is invoked to set up the PCI device memory space for device 6316 * with SLI-3 interface spec. 6317 * 6318 * Return codes 6319 * 0 - successful 6320 * other values - error 6321 **/ 6322 static int 6323 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 6324 { 6325 struct pci_dev *pdev; 6326 unsigned long bar0map_len, bar2map_len; 6327 int i, hbq_count; 6328 void *ptr; 6329 int error = -ENODEV; 6330 6331 /* Obtain PCI device reference */ 6332 if (!phba->pcidev) 6333 return error; 6334 else 6335 pdev = phba->pcidev; 6336 6337 /* Set the device DMA mask size */ 6338 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6339 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6340 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6341 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6342 return error; 6343 } 6344 } 6345 6346 /* Get the bus address of Bar0 and Bar2 and the number of bytes 6347 * required by each mapping. 6348 */ 6349 phba->pci_bar0_map = pci_resource_start(pdev, 0); 6350 bar0map_len = pci_resource_len(pdev, 0); 6351 6352 phba->pci_bar2_map = pci_resource_start(pdev, 2); 6353 bar2map_len = pci_resource_len(pdev, 2); 6354 6355 /* Map HBA SLIM to a kernel virtual address. */ 6356 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 6357 if (!phba->slim_memmap_p) { 6358 dev_printk(KERN_ERR, &pdev->dev, 6359 "ioremap failed for SLIM memory.\n"); 6360 goto out; 6361 } 6362 6363 /* Map HBA Control Registers to a kernel virtual address. */ 6364 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 6365 if (!phba->ctrl_regs_memmap_p) { 6366 dev_printk(KERN_ERR, &pdev->dev, 6367 "ioremap failed for HBA control registers.\n"); 6368 goto out_iounmap_slim; 6369 } 6370 6371 /* Allocate memory for SLI-2 structures */ 6372 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6373 &phba->slim2p.phys, GFP_KERNEL); 6374 if (!phba->slim2p.virt) 6375 goto out_iounmap; 6376 6377 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 6378 phba->mbox_ext = (phba->slim2p.virt + 6379 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 6380 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 6381 phba->IOCBs = (phba->slim2p.virt + 6382 offsetof(struct lpfc_sli2_slim, IOCBs)); 6383 6384 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 6385 lpfc_sli_hbq_size(), 6386 &phba->hbqslimp.phys, 6387 GFP_KERNEL); 6388 if (!phba->hbqslimp.virt) 6389 goto out_free_slim; 6390 6391 hbq_count = lpfc_sli_hbq_count(); 6392 ptr = phba->hbqslimp.virt; 6393 for (i = 0; i < hbq_count; ++i) { 6394 phba->hbqs[i].hbq_virt = ptr; 6395 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 6396 ptr += (lpfc_hbq_defs[i]->entry_count * 6397 sizeof(struct lpfc_hbq_entry)); 6398 } 6399 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 6400 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 6401 6402 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 6403 6404 INIT_LIST_HEAD(&phba->rb_pend_list); 6405 6406 phba->MBslimaddr = phba->slim_memmap_p; 6407 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 6408 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 6409 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 6410 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 6411 6412 return 0; 6413 6414 out_free_slim: 6415 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6416 phba->slim2p.virt, phba->slim2p.phys); 6417 out_iounmap: 6418 iounmap(phba->ctrl_regs_memmap_p); 6419 out_iounmap_slim: 6420 iounmap(phba->slim_memmap_p); 6421 out: 6422 return error; 6423 } 6424 6425 /** 6426 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 6427 * @phba: pointer to lpfc hba data structure. 6428 * 6429 * This routine is invoked to unset the PCI device memory space for device 6430 * with SLI-3 interface spec. 6431 **/ 6432 static void 6433 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 6434 { 6435 struct pci_dev *pdev; 6436 6437 /* Obtain PCI device reference */ 6438 if (!phba->pcidev) 6439 return; 6440 else 6441 pdev = phba->pcidev; 6442 6443 /* Free coherent DMA memory allocated */ 6444 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 6445 phba->hbqslimp.virt, phba->hbqslimp.phys); 6446 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6447 phba->slim2p.virt, phba->slim2p.phys); 6448 6449 /* I/O memory unmap */ 6450 iounmap(phba->ctrl_regs_memmap_p); 6451 iounmap(phba->slim_memmap_p); 6452 6453 return; 6454 } 6455 6456 /** 6457 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 6458 * @phba: pointer to lpfc hba data structure. 6459 * 6460 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 6461 * done and check status. 6462 * 6463 * Return 0 if successful, otherwise -ENODEV. 6464 **/ 6465 int 6466 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 6467 { 6468 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 6469 struct lpfc_register reg_data; 6470 int i, port_error = 0; 6471 uint32_t if_type; 6472 6473 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 6474 memset(®_data, 0, sizeof(reg_data)); 6475 if (!phba->sli4_hba.PSMPHRregaddr) 6476 return -ENODEV; 6477 6478 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 6479 for (i = 0; i < 3000; i++) { 6480 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 6481 &portsmphr_reg.word0) || 6482 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 6483 /* Port has a fatal POST error, break out */ 6484 port_error = -ENODEV; 6485 break; 6486 } 6487 if (LPFC_POST_STAGE_PORT_READY == 6488 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 6489 break; 6490 msleep(10); 6491 } 6492 6493 /* 6494 * If there was a port error during POST, then don't proceed with 6495 * other register reads as the data may not be valid. Just exit. 6496 */ 6497 if (port_error) { 6498 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6499 "1408 Port Failed POST - portsmphr=0x%x, " 6500 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 6501 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 6502 portsmphr_reg.word0, 6503 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 6504 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 6505 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 6506 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 6507 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 6508 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 6509 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 6510 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 6511 } else { 6512 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6513 "2534 Device Info: SLIFamily=0x%x, " 6514 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 6515 "SLIHint_2=0x%x, FT=0x%x\n", 6516 bf_get(lpfc_sli_intf_sli_family, 6517 &phba->sli4_hba.sli_intf), 6518 bf_get(lpfc_sli_intf_slirev, 6519 &phba->sli4_hba.sli_intf), 6520 bf_get(lpfc_sli_intf_if_type, 6521 &phba->sli4_hba.sli_intf), 6522 bf_get(lpfc_sli_intf_sli_hint1, 6523 &phba->sli4_hba.sli_intf), 6524 bf_get(lpfc_sli_intf_sli_hint2, 6525 &phba->sli4_hba.sli_intf), 6526 bf_get(lpfc_sli_intf_func_type, 6527 &phba->sli4_hba.sli_intf)); 6528 /* 6529 * Check for other Port errors during the initialization 6530 * process. Fail the load if the port did not come up 6531 * correctly. 6532 */ 6533 if_type = bf_get(lpfc_sli_intf_if_type, 6534 &phba->sli4_hba.sli_intf); 6535 switch (if_type) { 6536 case LPFC_SLI_INTF_IF_TYPE_0: 6537 phba->sli4_hba.ue_mask_lo = 6538 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 6539 phba->sli4_hba.ue_mask_hi = 6540 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 6541 uerrlo_reg.word0 = 6542 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 6543 uerrhi_reg.word0 = 6544 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 6545 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 6546 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 6547 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6548 "1422 Unrecoverable Error " 6549 "Detected during POST " 6550 "uerr_lo_reg=0x%x, " 6551 "uerr_hi_reg=0x%x, " 6552 "ue_mask_lo_reg=0x%x, " 6553 "ue_mask_hi_reg=0x%x\n", 6554 uerrlo_reg.word0, 6555 uerrhi_reg.word0, 6556 phba->sli4_hba.ue_mask_lo, 6557 phba->sli4_hba.ue_mask_hi); 6558 port_error = -ENODEV; 6559 } 6560 break; 6561 case LPFC_SLI_INTF_IF_TYPE_2: 6562 /* Final checks. The port status should be clean. */ 6563 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 6564 ®_data.word0) || 6565 (bf_get(lpfc_sliport_status_err, ®_data) && 6566 !bf_get(lpfc_sliport_status_rn, ®_data))) { 6567 phba->work_status[0] = 6568 readl(phba->sli4_hba.u.if_type2. 6569 ERR1regaddr); 6570 phba->work_status[1] = 6571 readl(phba->sli4_hba.u.if_type2. 6572 ERR2regaddr); 6573 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6574 "2888 Unrecoverable port error " 6575 "following POST: port status reg " 6576 "0x%x, port_smphr reg 0x%x, " 6577 "error 1=0x%x, error 2=0x%x\n", 6578 reg_data.word0, 6579 portsmphr_reg.word0, 6580 phba->work_status[0], 6581 phba->work_status[1]); 6582 port_error = -ENODEV; 6583 } 6584 break; 6585 case LPFC_SLI_INTF_IF_TYPE_1: 6586 default: 6587 break; 6588 } 6589 } 6590 return port_error; 6591 } 6592 6593 /** 6594 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 6595 * @phba: pointer to lpfc hba data structure. 6596 * @if_type: The SLI4 interface type getting configured. 6597 * 6598 * This routine is invoked to set up SLI4 BAR0 PCI config space register 6599 * memory map. 6600 **/ 6601 static void 6602 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 6603 { 6604 switch (if_type) { 6605 case LPFC_SLI_INTF_IF_TYPE_0: 6606 phba->sli4_hba.u.if_type0.UERRLOregaddr = 6607 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 6608 phba->sli4_hba.u.if_type0.UERRHIregaddr = 6609 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 6610 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 6611 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 6612 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 6613 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 6614 phba->sli4_hba.SLIINTFregaddr = 6615 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 6616 break; 6617 case LPFC_SLI_INTF_IF_TYPE_2: 6618 phba->sli4_hba.u.if_type2.ERR1regaddr = 6619 phba->sli4_hba.conf_regs_memmap_p + 6620 LPFC_CTL_PORT_ER1_OFFSET; 6621 phba->sli4_hba.u.if_type2.ERR2regaddr = 6622 phba->sli4_hba.conf_regs_memmap_p + 6623 LPFC_CTL_PORT_ER2_OFFSET; 6624 phba->sli4_hba.u.if_type2.CTRLregaddr = 6625 phba->sli4_hba.conf_regs_memmap_p + 6626 LPFC_CTL_PORT_CTL_OFFSET; 6627 phba->sli4_hba.u.if_type2.STATUSregaddr = 6628 phba->sli4_hba.conf_regs_memmap_p + 6629 LPFC_CTL_PORT_STA_OFFSET; 6630 phba->sli4_hba.SLIINTFregaddr = 6631 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 6632 phba->sli4_hba.PSMPHRregaddr = 6633 phba->sli4_hba.conf_regs_memmap_p + 6634 LPFC_CTL_PORT_SEM_OFFSET; 6635 phba->sli4_hba.RQDBregaddr = 6636 phba->sli4_hba.conf_regs_memmap_p + 6637 LPFC_ULP0_RQ_DOORBELL; 6638 phba->sli4_hba.WQDBregaddr = 6639 phba->sli4_hba.conf_regs_memmap_p + 6640 LPFC_ULP0_WQ_DOORBELL; 6641 phba->sli4_hba.EQCQDBregaddr = 6642 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 6643 phba->sli4_hba.MQDBregaddr = 6644 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 6645 phba->sli4_hba.BMBXregaddr = 6646 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 6647 break; 6648 case LPFC_SLI_INTF_IF_TYPE_1: 6649 default: 6650 dev_printk(KERN_ERR, &phba->pcidev->dev, 6651 "FATAL - unsupported SLI4 interface type - %d\n", 6652 if_type); 6653 break; 6654 } 6655 } 6656 6657 /** 6658 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 6659 * @phba: pointer to lpfc hba data structure. 6660 * 6661 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 6662 * memory map. 6663 **/ 6664 static void 6665 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 6666 { 6667 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6668 LPFC_SLIPORT_IF0_SMPHR; 6669 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6670 LPFC_HST_ISR0; 6671 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6672 LPFC_HST_IMR0; 6673 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6674 LPFC_HST_ISCR0; 6675 } 6676 6677 /** 6678 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 6679 * @phba: pointer to lpfc hba data structure. 6680 * @vf: virtual function number 6681 * 6682 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 6683 * based on the given viftual function number, @vf. 6684 * 6685 * Return 0 if successful, otherwise -ENODEV. 6686 **/ 6687 static int 6688 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 6689 { 6690 if (vf > LPFC_VIR_FUNC_MAX) 6691 return -ENODEV; 6692 6693 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6694 vf * LPFC_VFR_PAGE_SIZE + 6695 LPFC_ULP0_RQ_DOORBELL); 6696 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6697 vf * LPFC_VFR_PAGE_SIZE + 6698 LPFC_ULP0_WQ_DOORBELL); 6699 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6700 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 6701 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6702 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 6703 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6704 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 6705 return 0; 6706 } 6707 6708 /** 6709 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 6710 * @phba: pointer to lpfc hba data structure. 6711 * 6712 * This routine is invoked to create the bootstrap mailbox 6713 * region consistent with the SLI-4 interface spec. This 6714 * routine allocates all memory necessary to communicate 6715 * mailbox commands to the port and sets up all alignment 6716 * needs. No locks are expected to be held when calling 6717 * this routine. 6718 * 6719 * Return codes 6720 * 0 - successful 6721 * -ENOMEM - could not allocated memory. 6722 **/ 6723 static int 6724 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 6725 { 6726 uint32_t bmbx_size; 6727 struct lpfc_dmabuf *dmabuf; 6728 struct dma_address *dma_address; 6729 uint32_t pa_addr; 6730 uint64_t phys_addr; 6731 6732 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6733 if (!dmabuf) 6734 return -ENOMEM; 6735 6736 /* 6737 * The bootstrap mailbox region is comprised of 2 parts 6738 * plus an alignment restriction of 16 bytes. 6739 */ 6740 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 6741 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size, 6742 &dmabuf->phys, GFP_KERNEL); 6743 if (!dmabuf->virt) { 6744 kfree(dmabuf); 6745 return -ENOMEM; 6746 } 6747 6748 /* 6749 * Initialize the bootstrap mailbox pointers now so that the register 6750 * operations are simple later. The mailbox dma address is required 6751 * to be 16-byte aligned. Also align the virtual memory as each 6752 * maibox is copied into the bmbx mailbox region before issuing the 6753 * command to the port. 6754 */ 6755 phba->sli4_hba.bmbx.dmabuf = dmabuf; 6756 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 6757 6758 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 6759 LPFC_ALIGN_16_BYTE); 6760 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 6761 LPFC_ALIGN_16_BYTE); 6762 6763 /* 6764 * Set the high and low physical addresses now. The SLI4 alignment 6765 * requirement is 16 bytes and the mailbox is posted to the port 6766 * as two 30-bit addresses. The other data is a bit marking whether 6767 * the 30-bit address is the high or low address. 6768 * Upcast bmbx aphys to 64bits so shift instruction compiles 6769 * clean on 32 bit machines. 6770 */ 6771 dma_address = &phba->sli4_hba.bmbx.dma_address; 6772 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 6773 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 6774 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 6775 LPFC_BMBX_BIT1_ADDR_HI); 6776 6777 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 6778 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 6779 LPFC_BMBX_BIT1_ADDR_LO); 6780 return 0; 6781 } 6782 6783 /** 6784 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 6785 * @phba: pointer to lpfc hba data structure. 6786 * 6787 * This routine is invoked to teardown the bootstrap mailbox 6788 * region and release all host resources. This routine requires 6789 * the caller to ensure all mailbox commands recovered, no 6790 * additional mailbox comands are sent, and interrupts are disabled 6791 * before calling this routine. 6792 * 6793 **/ 6794 static void 6795 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 6796 { 6797 dma_free_coherent(&phba->pcidev->dev, 6798 phba->sli4_hba.bmbx.bmbx_size, 6799 phba->sli4_hba.bmbx.dmabuf->virt, 6800 phba->sli4_hba.bmbx.dmabuf->phys); 6801 6802 kfree(phba->sli4_hba.bmbx.dmabuf); 6803 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 6804 } 6805 6806 /** 6807 * lpfc_sli4_read_config - Get the config parameters. 6808 * @phba: pointer to lpfc hba data structure. 6809 * 6810 * This routine is invoked to read the configuration parameters from the HBA. 6811 * The configuration parameters are used to set the base and maximum values 6812 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 6813 * allocation for the port. 6814 * 6815 * Return codes 6816 * 0 - successful 6817 * -ENOMEM - No available memory 6818 * -EIO - The mailbox failed to complete successfully. 6819 **/ 6820 int 6821 lpfc_sli4_read_config(struct lpfc_hba *phba) 6822 { 6823 LPFC_MBOXQ_t *pmb; 6824 struct lpfc_mbx_read_config *rd_config; 6825 union lpfc_sli4_cfg_shdr *shdr; 6826 uint32_t shdr_status, shdr_add_status; 6827 struct lpfc_mbx_get_func_cfg *get_func_cfg; 6828 struct lpfc_rsrc_desc_fcfcoe *desc; 6829 char *pdesc_0; 6830 int length, i, rc = 0, rc2; 6831 6832 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6833 if (!pmb) { 6834 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6835 "2011 Unable to allocate memory for issuing " 6836 "SLI_CONFIG_SPECIAL mailbox command\n"); 6837 return -ENOMEM; 6838 } 6839 6840 lpfc_read_config(phba, pmb); 6841 6842 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6843 if (rc != MBX_SUCCESS) { 6844 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6845 "2012 Mailbox failed , mbxCmd x%x " 6846 "READ_CONFIG, mbxStatus x%x\n", 6847 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6848 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6849 rc = -EIO; 6850 } else { 6851 rd_config = &pmb->u.mqe.un.rd_config; 6852 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 6853 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 6854 phba->sli4_hba.lnk_info.lnk_tp = 6855 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 6856 phba->sli4_hba.lnk_info.lnk_no = 6857 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 6858 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6859 "3081 lnk_type:%d, lnk_numb:%d\n", 6860 phba->sli4_hba.lnk_info.lnk_tp, 6861 phba->sli4_hba.lnk_info.lnk_no); 6862 } else 6863 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 6864 "3082 Mailbox (x%x) returned ldv:x0\n", 6865 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 6866 phba->sli4_hba.extents_in_use = 6867 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 6868 phba->sli4_hba.max_cfg_param.max_xri = 6869 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 6870 phba->sli4_hba.max_cfg_param.xri_base = 6871 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 6872 phba->sli4_hba.max_cfg_param.max_vpi = 6873 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 6874 phba->sli4_hba.max_cfg_param.vpi_base = 6875 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 6876 phba->sli4_hba.max_cfg_param.max_rpi = 6877 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 6878 phba->sli4_hba.max_cfg_param.rpi_base = 6879 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 6880 phba->sli4_hba.max_cfg_param.max_vfi = 6881 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 6882 phba->sli4_hba.max_cfg_param.vfi_base = 6883 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 6884 phba->sli4_hba.max_cfg_param.max_fcfi = 6885 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 6886 phba->sli4_hba.max_cfg_param.max_eq = 6887 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 6888 phba->sli4_hba.max_cfg_param.max_rq = 6889 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 6890 phba->sli4_hba.max_cfg_param.max_wq = 6891 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 6892 phba->sli4_hba.max_cfg_param.max_cq = 6893 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 6894 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 6895 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 6896 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 6897 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 6898 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 6899 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 6900 phba->max_vports = phba->max_vpi; 6901 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6902 "2003 cfg params Extents? %d " 6903 "XRI(B:%d M:%d), " 6904 "VPI(B:%d M:%d) " 6905 "VFI(B:%d M:%d) " 6906 "RPI(B:%d M:%d) " 6907 "FCFI(Count:%d)\n", 6908 phba->sli4_hba.extents_in_use, 6909 phba->sli4_hba.max_cfg_param.xri_base, 6910 phba->sli4_hba.max_cfg_param.max_xri, 6911 phba->sli4_hba.max_cfg_param.vpi_base, 6912 phba->sli4_hba.max_cfg_param.max_vpi, 6913 phba->sli4_hba.max_cfg_param.vfi_base, 6914 phba->sli4_hba.max_cfg_param.max_vfi, 6915 phba->sli4_hba.max_cfg_param.rpi_base, 6916 phba->sli4_hba.max_cfg_param.max_rpi, 6917 phba->sli4_hba.max_cfg_param.max_fcfi); 6918 } 6919 6920 if (rc) 6921 goto read_cfg_out; 6922 6923 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 6924 length = phba->sli4_hba.max_cfg_param.max_xri - 6925 lpfc_sli4_get_els_iocb_cnt(phba); 6926 if (phba->cfg_hba_queue_depth > length) { 6927 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6928 "3361 HBA queue depth changed from %d to %d\n", 6929 phba->cfg_hba_queue_depth, length); 6930 phba->cfg_hba_queue_depth = length; 6931 } 6932 6933 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 6934 LPFC_SLI_INTF_IF_TYPE_2) 6935 goto read_cfg_out; 6936 6937 /* get the pf# and vf# for SLI4 if_type 2 port */ 6938 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 6939 sizeof(struct lpfc_sli4_cfg_mhdr)); 6940 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 6941 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 6942 length, LPFC_SLI4_MBX_EMBED); 6943 6944 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6945 shdr = (union lpfc_sli4_cfg_shdr *) 6946 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 6947 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6948 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6949 if (rc2 || shdr_status || shdr_add_status) { 6950 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6951 "3026 Mailbox failed , mbxCmd x%x " 6952 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 6953 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6954 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6955 goto read_cfg_out; 6956 } 6957 6958 /* search for fc_fcoe resrouce descriptor */ 6959 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 6960 6961 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 6962 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 6963 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 6964 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 6965 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 6966 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 6967 goto read_cfg_out; 6968 6969 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 6970 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 6971 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 6972 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 6973 phba->sli4_hba.iov.pf_number = 6974 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 6975 phba->sli4_hba.iov.vf_number = 6976 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 6977 break; 6978 } 6979 } 6980 6981 if (i < LPFC_RSRC_DESC_MAX_NUM) 6982 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6983 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 6984 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 6985 phba->sli4_hba.iov.vf_number); 6986 else 6987 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6988 "3028 GET_FUNCTION_CONFIG: failed to find " 6989 "Resrouce Descriptor:x%x\n", 6990 LPFC_RSRC_DESC_TYPE_FCFCOE); 6991 6992 read_cfg_out: 6993 mempool_free(pmb, phba->mbox_mem_pool); 6994 return rc; 6995 } 6996 6997 /** 6998 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 6999 * @phba: pointer to lpfc hba data structure. 7000 * 7001 * This routine is invoked to setup the port-side endian order when 7002 * the port if_type is 0. This routine has no function for other 7003 * if_types. 7004 * 7005 * Return codes 7006 * 0 - successful 7007 * -ENOMEM - No available memory 7008 * -EIO - The mailbox failed to complete successfully. 7009 **/ 7010 static int 7011 lpfc_setup_endian_order(struct lpfc_hba *phba) 7012 { 7013 LPFC_MBOXQ_t *mboxq; 7014 uint32_t if_type, rc = 0; 7015 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 7016 HOST_ENDIAN_HIGH_WORD1}; 7017 7018 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7019 switch (if_type) { 7020 case LPFC_SLI_INTF_IF_TYPE_0: 7021 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7022 GFP_KERNEL); 7023 if (!mboxq) { 7024 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7025 "0492 Unable to allocate memory for " 7026 "issuing SLI_CONFIG_SPECIAL mailbox " 7027 "command\n"); 7028 return -ENOMEM; 7029 } 7030 7031 /* 7032 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 7033 * two words to contain special data values and no other data. 7034 */ 7035 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 7036 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 7037 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7038 if (rc != MBX_SUCCESS) { 7039 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7040 "0493 SLI_CONFIG_SPECIAL mailbox " 7041 "failed with status x%x\n", 7042 rc); 7043 rc = -EIO; 7044 } 7045 mempool_free(mboxq, phba->mbox_mem_pool); 7046 break; 7047 case LPFC_SLI_INTF_IF_TYPE_2: 7048 case LPFC_SLI_INTF_IF_TYPE_1: 7049 default: 7050 break; 7051 } 7052 return rc; 7053 } 7054 7055 /** 7056 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts 7057 * @phba: pointer to lpfc hba data structure. 7058 * 7059 * This routine is invoked to check the user settable queue counts for EQs and 7060 * CQs. after this routine is called the counts will be set to valid values that 7061 * adhere to the constraints of the system's interrupt vectors and the port's 7062 * queue resources. 7063 * 7064 * Return codes 7065 * 0 - successful 7066 * -ENOMEM - No available memory 7067 **/ 7068 static int 7069 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 7070 { 7071 int cfg_fcp_io_channel; 7072 uint32_t cpu; 7073 uint32_t i = 0; 7074 int fof_vectors = phba->cfg_fof ? 1 : 0; 7075 7076 /* 7077 * Sanity check for configured queue parameters against the run-time 7078 * device parameters 7079 */ 7080 7081 /* Sanity check on HBA EQ parameters */ 7082 cfg_fcp_io_channel = phba->cfg_fcp_io_channel; 7083 7084 /* It doesn't make sense to have more io channels then online CPUs */ 7085 for_each_present_cpu(cpu) { 7086 if (cpu_online(cpu)) 7087 i++; 7088 } 7089 phba->sli4_hba.num_online_cpu = i; 7090 phba->sli4_hba.num_present_cpu = lpfc_present_cpu; 7091 phba->sli4_hba.curr_disp_cpu = 0; 7092 7093 if (i < cfg_fcp_io_channel) { 7094 lpfc_printf_log(phba, 7095 KERN_ERR, LOG_INIT, 7096 "3188 Reducing IO channels to match number of " 7097 "online CPUs: from %d to %d\n", 7098 cfg_fcp_io_channel, i); 7099 cfg_fcp_io_channel = i; 7100 } 7101 7102 if (cfg_fcp_io_channel + fof_vectors > 7103 phba->sli4_hba.max_cfg_param.max_eq) { 7104 if (phba->sli4_hba.max_cfg_param.max_eq < 7105 LPFC_FCP_IO_CHAN_MIN) { 7106 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7107 "2574 Not enough EQs (%d) from the " 7108 "pci function for supporting FCP " 7109 "EQs (%d)\n", 7110 phba->sli4_hba.max_cfg_param.max_eq, 7111 phba->cfg_fcp_io_channel); 7112 goto out_error; 7113 } 7114 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7115 "2575 Reducing IO channels to match number of " 7116 "available EQs: from %d to %d\n", 7117 cfg_fcp_io_channel, 7118 phba->sli4_hba.max_cfg_param.max_eq); 7119 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq - 7120 fof_vectors; 7121 } 7122 7123 /* The actual number of FCP event queues adopted */ 7124 phba->cfg_fcp_io_channel = cfg_fcp_io_channel; 7125 7126 /* Get EQ depth from module parameter, fake the default for now */ 7127 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 7128 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 7129 7130 /* Get CQ depth from module parameter, fake the default for now */ 7131 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 7132 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 7133 7134 return 0; 7135 out_error: 7136 return -ENOMEM; 7137 } 7138 7139 /** 7140 * lpfc_sli4_queue_create - Create all the SLI4 queues 7141 * @phba: pointer to lpfc hba data structure. 7142 * 7143 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 7144 * operation. For each SLI4 queue type, the parameters such as queue entry 7145 * count (queue depth) shall be taken from the module parameter. For now, 7146 * we just use some constant number as place holder. 7147 * 7148 * Return codes 7149 * 0 - successful 7150 * -ENOMEM - No availble memory 7151 * -EIO - The mailbox failed to complete successfully. 7152 **/ 7153 int 7154 lpfc_sli4_queue_create(struct lpfc_hba *phba) 7155 { 7156 struct lpfc_queue *qdesc; 7157 int idx; 7158 7159 /* 7160 * Create HBA Record arrays. 7161 */ 7162 if (!phba->cfg_fcp_io_channel) 7163 return -ERANGE; 7164 7165 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 7166 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 7167 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 7168 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 7169 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 7170 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 7171 7172 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) * 7173 phba->cfg_fcp_io_channel), GFP_KERNEL); 7174 if (!phba->sli4_hba.hba_eq) { 7175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7176 "2576 Failed allocate memory for " 7177 "fast-path EQ record array\n"); 7178 goto out_error; 7179 } 7180 7181 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 7182 phba->cfg_fcp_io_channel), GFP_KERNEL); 7183 if (!phba->sli4_hba.fcp_cq) { 7184 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7185 "2577 Failed allocate memory for fast-path " 7186 "CQ record array\n"); 7187 goto out_error; 7188 } 7189 7190 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 7191 phba->cfg_fcp_io_channel), GFP_KERNEL); 7192 if (!phba->sli4_hba.fcp_wq) { 7193 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7194 "2578 Failed allocate memory for fast-path " 7195 "WQ record array\n"); 7196 goto out_error; 7197 } 7198 7199 /* 7200 * Since the first EQ can have multiple CQs associated with it, 7201 * this array is used to quickly see if we have a FCP fast-path 7202 * CQ match. 7203 */ 7204 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) * 7205 phba->cfg_fcp_io_channel), GFP_KERNEL); 7206 if (!phba->sli4_hba.fcp_cq_map) { 7207 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7208 "2545 Failed allocate memory for fast-path " 7209 "CQ map\n"); 7210 goto out_error; 7211 } 7212 7213 /* 7214 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies 7215 * how many EQs to create. 7216 */ 7217 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 7218 7219 /* Create EQs */ 7220 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 7221 phba->sli4_hba.eq_ecount); 7222 if (!qdesc) { 7223 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7224 "0497 Failed allocate EQ (%d)\n", idx); 7225 goto out_error; 7226 } 7227 phba->sli4_hba.hba_eq[idx] = qdesc; 7228 7229 /* Create Fast Path FCP CQs */ 7230 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7231 phba->sli4_hba.cq_ecount); 7232 if (!qdesc) { 7233 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7234 "0499 Failed allocate fast-path FCP " 7235 "CQ (%d)\n", idx); 7236 goto out_error; 7237 } 7238 phba->sli4_hba.fcp_cq[idx] = qdesc; 7239 7240 /* Create Fast Path FCP WQs */ 7241 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 7242 phba->sli4_hba.wq_ecount); 7243 if (!qdesc) { 7244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7245 "0503 Failed allocate fast-path FCP " 7246 "WQ (%d)\n", idx); 7247 goto out_error; 7248 } 7249 phba->sli4_hba.fcp_wq[idx] = qdesc; 7250 } 7251 7252 7253 /* 7254 * Create Slow Path Completion Queues (CQs) 7255 */ 7256 7257 /* Create slow-path Mailbox Command Complete Queue */ 7258 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7259 phba->sli4_hba.cq_ecount); 7260 if (!qdesc) { 7261 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7262 "0500 Failed allocate slow-path mailbox CQ\n"); 7263 goto out_error; 7264 } 7265 phba->sli4_hba.mbx_cq = qdesc; 7266 7267 /* Create slow-path ELS Complete Queue */ 7268 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7269 phba->sli4_hba.cq_ecount); 7270 if (!qdesc) { 7271 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7272 "0501 Failed allocate slow-path ELS CQ\n"); 7273 goto out_error; 7274 } 7275 phba->sli4_hba.els_cq = qdesc; 7276 7277 7278 /* 7279 * Create Slow Path Work Queues (WQs) 7280 */ 7281 7282 /* Create Mailbox Command Queue */ 7283 7284 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 7285 phba->sli4_hba.mq_ecount); 7286 if (!qdesc) { 7287 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7288 "0505 Failed allocate slow-path MQ\n"); 7289 goto out_error; 7290 } 7291 phba->sli4_hba.mbx_wq = qdesc; 7292 7293 /* 7294 * Create ELS Work Queues 7295 */ 7296 7297 /* Create slow-path ELS Work Queue */ 7298 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 7299 phba->sli4_hba.wq_ecount); 7300 if (!qdesc) { 7301 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7302 "0504 Failed allocate slow-path ELS WQ\n"); 7303 goto out_error; 7304 } 7305 phba->sli4_hba.els_wq = qdesc; 7306 7307 /* 7308 * Create Receive Queue (RQ) 7309 */ 7310 7311 /* Create Receive Queue for header */ 7312 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 7313 phba->sli4_hba.rq_ecount); 7314 if (!qdesc) { 7315 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7316 "0506 Failed allocate receive HRQ\n"); 7317 goto out_error; 7318 } 7319 phba->sli4_hba.hdr_rq = qdesc; 7320 7321 /* Create Receive Queue for data */ 7322 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 7323 phba->sli4_hba.rq_ecount); 7324 if (!qdesc) { 7325 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7326 "0507 Failed allocate receive DRQ\n"); 7327 goto out_error; 7328 } 7329 phba->sli4_hba.dat_rq = qdesc; 7330 7331 /* Create the Queues needed for Flash Optimized Fabric operations */ 7332 if (phba->cfg_fof) 7333 lpfc_fof_queue_create(phba); 7334 return 0; 7335 7336 out_error: 7337 lpfc_sli4_queue_destroy(phba); 7338 return -ENOMEM; 7339 } 7340 7341 /** 7342 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 7343 * @phba: pointer to lpfc hba data structure. 7344 * 7345 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 7346 * operation. 7347 * 7348 * Return codes 7349 * 0 - successful 7350 * -ENOMEM - No available memory 7351 * -EIO - The mailbox failed to complete successfully. 7352 **/ 7353 void 7354 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 7355 { 7356 int idx; 7357 7358 if (phba->cfg_fof) 7359 lpfc_fof_queue_destroy(phba); 7360 7361 if (phba->sli4_hba.hba_eq != NULL) { 7362 /* Release HBA event queue */ 7363 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 7364 if (phba->sli4_hba.hba_eq[idx] != NULL) { 7365 lpfc_sli4_queue_free( 7366 phba->sli4_hba.hba_eq[idx]); 7367 phba->sli4_hba.hba_eq[idx] = NULL; 7368 } 7369 } 7370 kfree(phba->sli4_hba.hba_eq); 7371 phba->sli4_hba.hba_eq = NULL; 7372 } 7373 7374 if (phba->sli4_hba.fcp_cq != NULL) { 7375 /* Release FCP completion queue */ 7376 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 7377 if (phba->sli4_hba.fcp_cq[idx] != NULL) { 7378 lpfc_sli4_queue_free( 7379 phba->sli4_hba.fcp_cq[idx]); 7380 phba->sli4_hba.fcp_cq[idx] = NULL; 7381 } 7382 } 7383 kfree(phba->sli4_hba.fcp_cq); 7384 phba->sli4_hba.fcp_cq = NULL; 7385 } 7386 7387 if (phba->sli4_hba.fcp_wq != NULL) { 7388 /* Release FCP work queue */ 7389 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 7390 if (phba->sli4_hba.fcp_wq[idx] != NULL) { 7391 lpfc_sli4_queue_free( 7392 phba->sli4_hba.fcp_wq[idx]); 7393 phba->sli4_hba.fcp_wq[idx] = NULL; 7394 } 7395 } 7396 kfree(phba->sli4_hba.fcp_wq); 7397 phba->sli4_hba.fcp_wq = NULL; 7398 } 7399 7400 /* Release FCP CQ mapping array */ 7401 if (phba->sli4_hba.fcp_cq_map != NULL) { 7402 kfree(phba->sli4_hba.fcp_cq_map); 7403 phba->sli4_hba.fcp_cq_map = NULL; 7404 } 7405 7406 /* Release mailbox command work queue */ 7407 if (phba->sli4_hba.mbx_wq != NULL) { 7408 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 7409 phba->sli4_hba.mbx_wq = NULL; 7410 } 7411 7412 /* Release ELS work queue */ 7413 if (phba->sli4_hba.els_wq != NULL) { 7414 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 7415 phba->sli4_hba.els_wq = NULL; 7416 } 7417 7418 /* Release unsolicited receive queue */ 7419 if (phba->sli4_hba.hdr_rq != NULL) { 7420 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 7421 phba->sli4_hba.hdr_rq = NULL; 7422 } 7423 if (phba->sli4_hba.dat_rq != NULL) { 7424 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 7425 phba->sli4_hba.dat_rq = NULL; 7426 } 7427 7428 /* Release ELS complete queue */ 7429 if (phba->sli4_hba.els_cq != NULL) { 7430 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 7431 phba->sli4_hba.els_cq = NULL; 7432 } 7433 7434 /* Release mailbox command complete queue */ 7435 if (phba->sli4_hba.mbx_cq != NULL) { 7436 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 7437 phba->sli4_hba.mbx_cq = NULL; 7438 } 7439 7440 return; 7441 } 7442 7443 /** 7444 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 7445 * @phba: pointer to lpfc hba data structure. 7446 * 7447 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 7448 * operation. 7449 * 7450 * Return codes 7451 * 0 - successful 7452 * -ENOMEM - No available memory 7453 * -EIO - The mailbox failed to complete successfully. 7454 **/ 7455 int 7456 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 7457 { 7458 struct lpfc_sli *psli = &phba->sli; 7459 struct lpfc_sli_ring *pring; 7460 int rc = -ENOMEM; 7461 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 7462 int fcp_cq_index = 0; 7463 uint32_t shdr_status, shdr_add_status; 7464 union lpfc_sli4_cfg_shdr *shdr; 7465 LPFC_MBOXQ_t *mboxq; 7466 uint32_t length; 7467 7468 /* Check for dual-ULP support */ 7469 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7470 if (!mboxq) { 7471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7472 "3249 Unable to allocate memory for " 7473 "QUERY_FW_CFG mailbox command\n"); 7474 return -ENOMEM; 7475 } 7476 length = (sizeof(struct lpfc_mbx_query_fw_config) - 7477 sizeof(struct lpfc_sli4_cfg_mhdr)); 7478 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7479 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 7480 length, LPFC_SLI4_MBX_EMBED); 7481 7482 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7483 7484 shdr = (union lpfc_sli4_cfg_shdr *) 7485 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7486 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7487 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7488 if (shdr_status || shdr_add_status || rc) { 7489 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7490 "3250 QUERY_FW_CFG mailbox failed with status " 7491 "x%x add_status x%x, mbx status x%x\n", 7492 shdr_status, shdr_add_status, rc); 7493 if (rc != MBX_TIMEOUT) 7494 mempool_free(mboxq, phba->mbox_mem_pool); 7495 rc = -ENXIO; 7496 goto out_error; 7497 } 7498 7499 phba->sli4_hba.fw_func_mode = 7500 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; 7501 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; 7502 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; 7503 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7504 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " 7505 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, 7506 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); 7507 7508 if (rc != MBX_TIMEOUT) 7509 mempool_free(mboxq, phba->mbox_mem_pool); 7510 7511 /* 7512 * Set up HBA Event Queues (EQs) 7513 */ 7514 7515 /* Set up HBA event queue */ 7516 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) { 7517 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7518 "3147 Fast-path EQs not allocated\n"); 7519 rc = -ENOMEM; 7520 goto out_error; 7521 } 7522 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) { 7523 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) { 7524 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7525 "0522 Fast-path EQ (%d) not " 7526 "allocated\n", fcp_eqidx); 7527 rc = -ENOMEM; 7528 goto out_destroy_hba_eq; 7529 } 7530 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx], 7531 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel)); 7532 if (rc) { 7533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7534 "0523 Failed setup of fast-path EQ " 7535 "(%d), rc = 0x%x\n", fcp_eqidx, 7536 (uint32_t)rc); 7537 goto out_destroy_hba_eq; 7538 } 7539 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7540 "2584 HBA EQ setup: " 7541 "queue[%d]-id=%d\n", fcp_eqidx, 7542 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id); 7543 } 7544 7545 /* Set up fast-path FCP Response Complete Queue */ 7546 if (!phba->sli4_hba.fcp_cq) { 7547 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7548 "3148 Fast-path FCP CQ array not " 7549 "allocated\n"); 7550 rc = -ENOMEM; 7551 goto out_destroy_hba_eq; 7552 } 7553 7554 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) { 7555 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 7556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7557 "0526 Fast-path FCP CQ (%d) not " 7558 "allocated\n", fcp_cqidx); 7559 rc = -ENOMEM; 7560 goto out_destroy_fcp_cq; 7561 } 7562 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 7563 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP); 7564 if (rc) { 7565 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7566 "0527 Failed setup of fast-path FCP " 7567 "CQ (%d), rc = 0x%x\n", fcp_cqidx, 7568 (uint32_t)rc); 7569 goto out_destroy_fcp_cq; 7570 } 7571 7572 /* Setup fcp_cq_map for fast lookup */ 7573 phba->sli4_hba.fcp_cq_map[fcp_cqidx] = 7574 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id; 7575 7576 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7577 "2588 FCP CQ setup: cq[%d]-id=%d, " 7578 "parent seq[%d]-id=%d\n", 7579 fcp_cqidx, 7580 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 7581 fcp_cqidx, 7582 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id); 7583 } 7584 7585 /* Set up fast-path FCP Work Queue */ 7586 if (!phba->sli4_hba.fcp_wq) { 7587 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7588 "3149 Fast-path FCP WQ array not " 7589 "allocated\n"); 7590 rc = -ENOMEM; 7591 goto out_destroy_fcp_cq; 7592 } 7593 7594 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) { 7595 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 7596 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7597 "0534 Fast-path FCP WQ (%d) not " 7598 "allocated\n", fcp_wqidx); 7599 rc = -ENOMEM; 7600 goto out_destroy_fcp_wq; 7601 } 7602 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 7603 phba->sli4_hba.fcp_cq[fcp_wqidx], 7604 LPFC_FCP); 7605 if (rc) { 7606 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7607 "0535 Failed setup of fast-path FCP " 7608 "WQ (%d), rc = 0x%x\n", fcp_wqidx, 7609 (uint32_t)rc); 7610 goto out_destroy_fcp_wq; 7611 } 7612 7613 /* Bind this WQ to the next FCP ring */ 7614 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx]; 7615 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx]; 7616 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring; 7617 7618 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7619 "2591 FCP WQ setup: wq[%d]-id=%d, " 7620 "parent cq[%d]-id=%d\n", 7621 fcp_wqidx, 7622 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 7623 fcp_cq_index, 7624 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id); 7625 } 7626 /* 7627 * Set up Complete Queues (CQs) 7628 */ 7629 7630 /* Set up slow-path MBOX Complete Queue as the first CQ */ 7631 if (!phba->sli4_hba.mbx_cq) { 7632 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7633 "0528 Mailbox CQ not allocated\n"); 7634 rc = -ENOMEM; 7635 goto out_destroy_fcp_wq; 7636 } 7637 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, 7638 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX); 7639 if (rc) { 7640 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7641 "0529 Failed setup of slow-path mailbox CQ: " 7642 "rc = 0x%x\n", (uint32_t)rc); 7643 goto out_destroy_fcp_wq; 7644 } 7645 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7646 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 7647 phba->sli4_hba.mbx_cq->queue_id, 7648 phba->sli4_hba.hba_eq[0]->queue_id); 7649 7650 /* Set up slow-path ELS Complete Queue */ 7651 if (!phba->sli4_hba.els_cq) { 7652 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7653 "0530 ELS CQ not allocated\n"); 7654 rc = -ENOMEM; 7655 goto out_destroy_mbx_cq; 7656 } 7657 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, 7658 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS); 7659 if (rc) { 7660 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7661 "0531 Failed setup of slow-path ELS CQ: " 7662 "rc = 0x%x\n", (uint32_t)rc); 7663 goto out_destroy_mbx_cq; 7664 } 7665 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7666 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 7667 phba->sli4_hba.els_cq->queue_id, 7668 phba->sli4_hba.hba_eq[0]->queue_id); 7669 7670 /* 7671 * Set up all the Work Queues (WQs) 7672 */ 7673 7674 /* Set up Mailbox Command Queue */ 7675 if (!phba->sli4_hba.mbx_wq) { 7676 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7677 "0538 Slow-path MQ not allocated\n"); 7678 rc = -ENOMEM; 7679 goto out_destroy_els_cq; 7680 } 7681 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 7682 phba->sli4_hba.mbx_cq, LPFC_MBOX); 7683 if (rc) { 7684 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7685 "0539 Failed setup of slow-path MQ: " 7686 "rc = 0x%x\n", rc); 7687 goto out_destroy_els_cq; 7688 } 7689 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7690 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 7691 phba->sli4_hba.mbx_wq->queue_id, 7692 phba->sli4_hba.mbx_cq->queue_id); 7693 7694 /* Set up slow-path ELS Work Queue */ 7695 if (!phba->sli4_hba.els_wq) { 7696 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7697 "0536 Slow-path ELS WQ not allocated\n"); 7698 rc = -ENOMEM; 7699 goto out_destroy_mbx_wq; 7700 } 7701 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 7702 phba->sli4_hba.els_cq, LPFC_ELS); 7703 if (rc) { 7704 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7705 "0537 Failed setup of slow-path ELS WQ: " 7706 "rc = 0x%x\n", (uint32_t)rc); 7707 goto out_destroy_mbx_wq; 7708 } 7709 7710 /* Bind this WQ to the ELS ring */ 7711 pring = &psli->ring[LPFC_ELS_RING]; 7712 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq; 7713 phba->sli4_hba.els_cq->pring = pring; 7714 7715 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7716 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 7717 phba->sli4_hba.els_wq->queue_id, 7718 phba->sli4_hba.els_cq->queue_id); 7719 7720 /* 7721 * Create Receive Queue (RQ) 7722 */ 7723 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 7724 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7725 "0540 Receive Queue not allocated\n"); 7726 rc = -ENOMEM; 7727 goto out_destroy_els_wq; 7728 } 7729 7730 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ); 7731 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ); 7732 7733 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 7734 phba->sli4_hba.els_cq, LPFC_USOL); 7735 if (rc) { 7736 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7737 "0541 Failed setup of Receive Queue: " 7738 "rc = 0x%x\n", (uint32_t)rc); 7739 goto out_destroy_fcp_wq; 7740 } 7741 7742 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7743 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 7744 "parent cq-id=%d\n", 7745 phba->sli4_hba.hdr_rq->queue_id, 7746 phba->sli4_hba.dat_rq->queue_id, 7747 phba->sli4_hba.els_cq->queue_id); 7748 7749 if (phba->cfg_fof) { 7750 rc = lpfc_fof_queue_setup(phba); 7751 if (rc) { 7752 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7753 "0549 Failed setup of FOF Queues: " 7754 "rc = 0x%x\n", rc); 7755 goto out_destroy_els_rq; 7756 } 7757 } 7758 7759 /* 7760 * Configure EQ delay multipier for interrupt coalescing using 7761 * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time. 7762 */ 7763 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; 7764 fcp_eqidx += LPFC_MAX_EQ_DELAY) 7765 lpfc_modify_fcp_eq_delay(phba, fcp_eqidx); 7766 return 0; 7767 7768 out_destroy_els_rq: 7769 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 7770 out_destroy_els_wq: 7771 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7772 out_destroy_mbx_wq: 7773 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7774 out_destroy_els_cq: 7775 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7776 out_destroy_mbx_cq: 7777 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7778 out_destroy_fcp_wq: 7779 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 7780 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 7781 out_destroy_fcp_cq: 7782 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 7783 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 7784 out_destroy_hba_eq: 7785 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 7786 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]); 7787 out_error: 7788 return rc; 7789 } 7790 7791 /** 7792 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 7793 * @phba: pointer to lpfc hba data structure. 7794 * 7795 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 7796 * operation. 7797 * 7798 * Return codes 7799 * 0 - successful 7800 * -ENOMEM - No available memory 7801 * -EIO - The mailbox failed to complete successfully. 7802 **/ 7803 void 7804 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 7805 { 7806 int fcp_qidx; 7807 7808 /* Unset the queues created for Flash Optimized Fabric operations */ 7809 if (phba->cfg_fof) 7810 lpfc_fof_queue_destroy(phba); 7811 /* Unset mailbox command work queue */ 7812 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7813 /* Unset ELS work queue */ 7814 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7815 /* Unset unsolicited receive queue */ 7816 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 7817 /* Unset FCP work queue */ 7818 if (phba->sli4_hba.fcp_wq) { 7819 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7820 fcp_qidx++) 7821 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 7822 } 7823 /* Unset mailbox command complete queue */ 7824 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7825 /* Unset ELS complete queue */ 7826 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7827 /* Unset FCP response complete queue */ 7828 if (phba->sli4_hba.fcp_cq) { 7829 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7830 fcp_qidx++) 7831 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 7832 } 7833 /* Unset fast-path event queue */ 7834 if (phba->sli4_hba.hba_eq) { 7835 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7836 fcp_qidx++) 7837 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]); 7838 } 7839 } 7840 7841 /** 7842 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 7843 * @phba: pointer to lpfc hba data structure. 7844 * 7845 * This routine is invoked to allocate and set up a pool of completion queue 7846 * events. The body of the completion queue event is a completion queue entry 7847 * CQE. For now, this pool is used for the interrupt service routine to queue 7848 * the following HBA completion queue events for the worker thread to process: 7849 * - Mailbox asynchronous events 7850 * - Receive queue completion unsolicited events 7851 * Later, this can be used for all the slow-path events. 7852 * 7853 * Return codes 7854 * 0 - successful 7855 * -ENOMEM - No available memory 7856 **/ 7857 static int 7858 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 7859 { 7860 struct lpfc_cq_event *cq_event; 7861 int i; 7862 7863 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 7864 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 7865 if (!cq_event) 7866 goto out_pool_create_fail; 7867 list_add_tail(&cq_event->list, 7868 &phba->sli4_hba.sp_cqe_event_pool); 7869 } 7870 return 0; 7871 7872 out_pool_create_fail: 7873 lpfc_sli4_cq_event_pool_destroy(phba); 7874 return -ENOMEM; 7875 } 7876 7877 /** 7878 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 7879 * @phba: pointer to lpfc hba data structure. 7880 * 7881 * This routine is invoked to free the pool of completion queue events at 7882 * driver unload time. Note that, it is the responsibility of the driver 7883 * cleanup routine to free all the outstanding completion-queue events 7884 * allocated from this pool back into the pool before invoking this routine 7885 * to destroy the pool. 7886 **/ 7887 static void 7888 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 7889 { 7890 struct lpfc_cq_event *cq_event, *next_cq_event; 7891 7892 list_for_each_entry_safe(cq_event, next_cq_event, 7893 &phba->sli4_hba.sp_cqe_event_pool, list) { 7894 list_del(&cq_event->list); 7895 kfree(cq_event); 7896 } 7897 } 7898 7899 /** 7900 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7901 * @phba: pointer to lpfc hba data structure. 7902 * 7903 * This routine is the lock free version of the API invoked to allocate a 7904 * completion-queue event from the free pool. 7905 * 7906 * Return: Pointer to the newly allocated completion-queue event if successful 7907 * NULL otherwise. 7908 **/ 7909 struct lpfc_cq_event * 7910 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7911 { 7912 struct lpfc_cq_event *cq_event = NULL; 7913 7914 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 7915 struct lpfc_cq_event, list); 7916 return cq_event; 7917 } 7918 7919 /** 7920 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7921 * @phba: pointer to lpfc hba data structure. 7922 * 7923 * This routine is the lock version of the API invoked to allocate a 7924 * completion-queue event from the free pool. 7925 * 7926 * Return: Pointer to the newly allocated completion-queue event if successful 7927 * NULL otherwise. 7928 **/ 7929 struct lpfc_cq_event * 7930 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7931 { 7932 struct lpfc_cq_event *cq_event; 7933 unsigned long iflags; 7934 7935 spin_lock_irqsave(&phba->hbalock, iflags); 7936 cq_event = __lpfc_sli4_cq_event_alloc(phba); 7937 spin_unlock_irqrestore(&phba->hbalock, iflags); 7938 return cq_event; 7939 } 7940 7941 /** 7942 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7943 * @phba: pointer to lpfc hba data structure. 7944 * @cq_event: pointer to the completion queue event to be freed. 7945 * 7946 * This routine is the lock free version of the API invoked to release a 7947 * completion-queue event back into the free pool. 7948 **/ 7949 void 7950 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7951 struct lpfc_cq_event *cq_event) 7952 { 7953 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 7954 } 7955 7956 /** 7957 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7958 * @phba: pointer to lpfc hba data structure. 7959 * @cq_event: pointer to the completion queue event to be freed. 7960 * 7961 * This routine is the lock version of the API invoked to release a 7962 * completion-queue event back into the free pool. 7963 **/ 7964 void 7965 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7966 struct lpfc_cq_event *cq_event) 7967 { 7968 unsigned long iflags; 7969 spin_lock_irqsave(&phba->hbalock, iflags); 7970 __lpfc_sli4_cq_event_release(phba, cq_event); 7971 spin_unlock_irqrestore(&phba->hbalock, iflags); 7972 } 7973 7974 /** 7975 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 7976 * @phba: pointer to lpfc hba data structure. 7977 * 7978 * This routine is to free all the pending completion-queue events to the 7979 * back into the free pool for device reset. 7980 **/ 7981 static void 7982 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 7983 { 7984 LIST_HEAD(cqelist); 7985 struct lpfc_cq_event *cqe; 7986 unsigned long iflags; 7987 7988 /* Retrieve all the pending WCQEs from pending WCQE lists */ 7989 spin_lock_irqsave(&phba->hbalock, iflags); 7990 /* Pending FCP XRI abort events */ 7991 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 7992 &cqelist); 7993 /* Pending ELS XRI abort events */ 7994 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 7995 &cqelist); 7996 /* Pending asynnc events */ 7997 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 7998 &cqelist); 7999 spin_unlock_irqrestore(&phba->hbalock, iflags); 8000 8001 while (!list_empty(&cqelist)) { 8002 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 8003 lpfc_sli4_cq_event_release(phba, cqe); 8004 } 8005 } 8006 8007 /** 8008 * lpfc_pci_function_reset - Reset pci function. 8009 * @phba: pointer to lpfc hba data structure. 8010 * 8011 * This routine is invoked to request a PCI function reset. It will destroys 8012 * all resources assigned to the PCI function which originates this request. 8013 * 8014 * Return codes 8015 * 0 - successful 8016 * -ENOMEM - No available memory 8017 * -EIO - The mailbox failed to complete successfully. 8018 **/ 8019 int 8020 lpfc_pci_function_reset(struct lpfc_hba *phba) 8021 { 8022 LPFC_MBOXQ_t *mboxq; 8023 uint32_t rc = 0, if_type; 8024 uint32_t shdr_status, shdr_add_status; 8025 uint32_t rdy_chk; 8026 uint32_t port_reset = 0; 8027 union lpfc_sli4_cfg_shdr *shdr; 8028 struct lpfc_register reg_data; 8029 uint16_t devid; 8030 8031 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 8032 switch (if_type) { 8033 case LPFC_SLI_INTF_IF_TYPE_0: 8034 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 8035 GFP_KERNEL); 8036 if (!mboxq) { 8037 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8038 "0494 Unable to allocate memory for " 8039 "issuing SLI_FUNCTION_RESET mailbox " 8040 "command\n"); 8041 return -ENOMEM; 8042 } 8043 8044 /* Setup PCI function reset mailbox-ioctl command */ 8045 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8046 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 8047 LPFC_SLI4_MBX_EMBED); 8048 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8049 shdr = (union lpfc_sli4_cfg_shdr *) 8050 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 8051 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 8052 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 8053 &shdr->response); 8054 if (rc != MBX_TIMEOUT) 8055 mempool_free(mboxq, phba->mbox_mem_pool); 8056 if (shdr_status || shdr_add_status || rc) { 8057 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8058 "0495 SLI_FUNCTION_RESET mailbox " 8059 "failed with status x%x add_status x%x," 8060 " mbx status x%x\n", 8061 shdr_status, shdr_add_status, rc); 8062 rc = -ENXIO; 8063 } 8064 break; 8065 case LPFC_SLI_INTF_IF_TYPE_2: 8066 wait: 8067 /* 8068 * Poll the Port Status Register and wait for RDY for 8069 * up to 30 seconds. If the port doesn't respond, treat 8070 * it as an error. 8071 */ 8072 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) { 8073 if (lpfc_readl(phba->sli4_hba.u.if_type2. 8074 STATUSregaddr, ®_data.word0)) { 8075 rc = -ENODEV; 8076 goto out; 8077 } 8078 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 8079 break; 8080 msleep(20); 8081 } 8082 8083 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) { 8084 phba->work_status[0] = readl( 8085 phba->sli4_hba.u.if_type2.ERR1regaddr); 8086 phba->work_status[1] = readl( 8087 phba->sli4_hba.u.if_type2.ERR2regaddr); 8088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8089 "2890 Port not ready, port status reg " 8090 "0x%x error 1=0x%x, error 2=0x%x\n", 8091 reg_data.word0, 8092 phba->work_status[0], 8093 phba->work_status[1]); 8094 rc = -ENODEV; 8095 goto out; 8096 } 8097 8098 if (!port_reset) { 8099 /* 8100 * Reset the port now 8101 */ 8102 reg_data.word0 = 0; 8103 bf_set(lpfc_sliport_ctrl_end, ®_data, 8104 LPFC_SLIPORT_LITTLE_ENDIAN); 8105 bf_set(lpfc_sliport_ctrl_ip, ®_data, 8106 LPFC_SLIPORT_INIT_PORT); 8107 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 8108 CTRLregaddr); 8109 /* flush */ 8110 pci_read_config_word(phba->pcidev, 8111 PCI_DEVICE_ID, &devid); 8112 8113 port_reset = 1; 8114 msleep(20); 8115 goto wait; 8116 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) { 8117 rc = -ENODEV; 8118 goto out; 8119 } 8120 break; 8121 8122 case LPFC_SLI_INTF_IF_TYPE_1: 8123 default: 8124 break; 8125 } 8126 8127 out: 8128 /* Catch the not-ready port failure after a port reset. */ 8129 if (rc) { 8130 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8131 "3317 HBA not functional: IP Reset Failed " 8132 "try: echo fw_reset > board_mode\n"); 8133 rc = -ENODEV; 8134 } 8135 8136 return rc; 8137 } 8138 8139 /** 8140 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 8141 * @phba: pointer to lpfc hba data structure. 8142 * 8143 * This routine is invoked to set up the PCI device memory space for device 8144 * with SLI-4 interface spec. 8145 * 8146 * Return codes 8147 * 0 - successful 8148 * other values - error 8149 **/ 8150 static int 8151 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 8152 { 8153 struct pci_dev *pdev; 8154 unsigned long bar0map_len, bar1map_len, bar2map_len; 8155 int error = -ENODEV; 8156 uint32_t if_type; 8157 8158 /* Obtain PCI device reference */ 8159 if (!phba->pcidev) 8160 return error; 8161 else 8162 pdev = phba->pcidev; 8163 8164 /* Set the device DMA mask size */ 8165 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 8166 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 8167 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 8168 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 8169 return error; 8170 } 8171 } 8172 8173 /* 8174 * The BARs and register set definitions and offset locations are 8175 * dependent on the if_type. 8176 */ 8177 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 8178 &phba->sli4_hba.sli_intf.word0)) { 8179 return error; 8180 } 8181 8182 /* There is no SLI3 failback for SLI4 devices. */ 8183 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 8184 LPFC_SLI_INTF_VALID) { 8185 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8186 "2894 SLI_INTF reg contents invalid " 8187 "sli_intf reg 0x%x\n", 8188 phba->sli4_hba.sli_intf.word0); 8189 return error; 8190 } 8191 8192 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 8193 /* 8194 * Get the bus address of SLI4 device Bar regions and the 8195 * number of bytes required by each mapping. The mapping of the 8196 * particular PCI BARs regions is dependent on the type of 8197 * SLI4 device. 8198 */ 8199 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) { 8200 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0); 8201 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0); 8202 8203 /* 8204 * Map SLI4 PCI Config Space Register base to a kernel virtual 8205 * addr 8206 */ 8207 phba->sli4_hba.conf_regs_memmap_p = 8208 ioremap(phba->pci_bar0_map, bar0map_len); 8209 if (!phba->sli4_hba.conf_regs_memmap_p) { 8210 dev_printk(KERN_ERR, &pdev->dev, 8211 "ioremap failed for SLI4 PCI config " 8212 "registers.\n"); 8213 goto out; 8214 } 8215 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p; 8216 /* Set up BAR0 PCI config space register memory map */ 8217 lpfc_sli4_bar0_register_memmap(phba, if_type); 8218 } else { 8219 phba->pci_bar0_map = pci_resource_start(pdev, 1); 8220 bar0map_len = pci_resource_len(pdev, 1); 8221 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 8222 dev_printk(KERN_ERR, &pdev->dev, 8223 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 8224 goto out; 8225 } 8226 phba->sli4_hba.conf_regs_memmap_p = 8227 ioremap(phba->pci_bar0_map, bar0map_len); 8228 if (!phba->sli4_hba.conf_regs_memmap_p) { 8229 dev_printk(KERN_ERR, &pdev->dev, 8230 "ioremap failed for SLI4 PCI config " 8231 "registers.\n"); 8232 goto out; 8233 } 8234 lpfc_sli4_bar0_register_memmap(phba, if_type); 8235 } 8236 8237 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 8238 (pci_resource_start(pdev, PCI_64BIT_BAR2))) { 8239 /* 8240 * Map SLI4 if type 0 HBA Control Register base to a kernel 8241 * virtual address and setup the registers. 8242 */ 8243 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2); 8244 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); 8245 phba->sli4_hba.ctrl_regs_memmap_p = 8246 ioremap(phba->pci_bar1_map, bar1map_len); 8247 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 8248 dev_printk(KERN_ERR, &pdev->dev, 8249 "ioremap failed for SLI4 HBA control registers.\n"); 8250 goto out_iounmap_conf; 8251 } 8252 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p; 8253 lpfc_sli4_bar1_register_memmap(phba); 8254 } 8255 8256 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 8257 (pci_resource_start(pdev, PCI_64BIT_BAR4))) { 8258 /* 8259 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 8260 * virtual address and setup the registers. 8261 */ 8262 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4); 8263 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); 8264 phba->sli4_hba.drbl_regs_memmap_p = 8265 ioremap(phba->pci_bar2_map, bar2map_len); 8266 if (!phba->sli4_hba.drbl_regs_memmap_p) { 8267 dev_printk(KERN_ERR, &pdev->dev, 8268 "ioremap failed for SLI4 HBA doorbell registers.\n"); 8269 goto out_iounmap_ctrl; 8270 } 8271 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p; 8272 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 8273 if (error) 8274 goto out_iounmap_all; 8275 } 8276 8277 return 0; 8278 8279 out_iounmap_all: 8280 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 8281 out_iounmap_ctrl: 8282 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 8283 out_iounmap_conf: 8284 iounmap(phba->sli4_hba.conf_regs_memmap_p); 8285 out: 8286 return error; 8287 } 8288 8289 /** 8290 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 8291 * @phba: pointer to lpfc hba data structure. 8292 * 8293 * This routine is invoked to unset the PCI device memory space for device 8294 * with SLI-4 interface spec. 8295 **/ 8296 static void 8297 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 8298 { 8299 uint32_t if_type; 8300 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 8301 8302 switch (if_type) { 8303 case LPFC_SLI_INTF_IF_TYPE_0: 8304 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 8305 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 8306 iounmap(phba->sli4_hba.conf_regs_memmap_p); 8307 break; 8308 case LPFC_SLI_INTF_IF_TYPE_2: 8309 iounmap(phba->sli4_hba.conf_regs_memmap_p); 8310 break; 8311 case LPFC_SLI_INTF_IF_TYPE_1: 8312 default: 8313 dev_printk(KERN_ERR, &phba->pcidev->dev, 8314 "FATAL - unsupported SLI4 interface type - %d\n", 8315 if_type); 8316 break; 8317 } 8318 } 8319 8320 /** 8321 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 8322 * @phba: pointer to lpfc hba data structure. 8323 * 8324 * This routine is invoked to enable the MSI-X interrupt vectors to device 8325 * with SLI-3 interface specs. The kernel function pci_enable_msix_exact() 8326 * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(), 8327 * once invoked, enables either all or nothing, depending on the current 8328 * availability of PCI vector resources. The device driver is responsible 8329 * for calling the individual request_irq() to register each MSI-X vector 8330 * with a interrupt handler, which is done in this function. Note that 8331 * later when device is unloading, the driver should always call free_irq() 8332 * on all MSI-X vectors it has done request_irq() on before calling 8333 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 8334 * will be left with MSI-X enabled and leaks its vectors. 8335 * 8336 * Return codes 8337 * 0 - successful 8338 * other values - error 8339 **/ 8340 static int 8341 lpfc_sli_enable_msix(struct lpfc_hba *phba) 8342 { 8343 int rc, i; 8344 LPFC_MBOXQ_t *pmb; 8345 8346 /* Set up MSI-X multi-message vectors */ 8347 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 8348 phba->msix_entries[i].entry = i; 8349 8350 /* Configure MSI-X capability structure */ 8351 rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries, 8352 LPFC_MSIX_VECTORS); 8353 if (rc) { 8354 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8355 "0420 PCI enable MSI-X failed (%d)\n", rc); 8356 goto vec_fail_out; 8357 } 8358 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 8359 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8360 "0477 MSI-X entry[%d]: vector=x%x " 8361 "message=%d\n", i, 8362 phba->msix_entries[i].vector, 8363 phba->msix_entries[i].entry); 8364 /* 8365 * Assign MSI-X vectors to interrupt handlers 8366 */ 8367 8368 /* vector-0 is associated to slow-path handler */ 8369 rc = request_irq(phba->msix_entries[0].vector, 8370 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 8371 LPFC_SP_DRIVER_HANDLER_NAME, phba); 8372 if (rc) { 8373 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8374 "0421 MSI-X slow-path request_irq failed " 8375 "(%d)\n", rc); 8376 goto msi_fail_out; 8377 } 8378 8379 /* vector-1 is associated to fast-path handler */ 8380 rc = request_irq(phba->msix_entries[1].vector, 8381 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 8382 LPFC_FP_DRIVER_HANDLER_NAME, phba); 8383 8384 if (rc) { 8385 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8386 "0429 MSI-X fast-path request_irq failed " 8387 "(%d)\n", rc); 8388 goto irq_fail_out; 8389 } 8390 8391 /* 8392 * Configure HBA MSI-X attention conditions to messages 8393 */ 8394 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 8395 8396 if (!pmb) { 8397 rc = -ENOMEM; 8398 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8399 "0474 Unable to allocate memory for issuing " 8400 "MBOX_CONFIG_MSI command\n"); 8401 goto mem_fail_out; 8402 } 8403 rc = lpfc_config_msi(phba, pmb); 8404 if (rc) 8405 goto mbx_fail_out; 8406 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 8407 if (rc != MBX_SUCCESS) { 8408 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 8409 "0351 Config MSI mailbox command failed, " 8410 "mbxCmd x%x, mbxStatus x%x\n", 8411 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 8412 goto mbx_fail_out; 8413 } 8414 8415 /* Free memory allocated for mailbox command */ 8416 mempool_free(pmb, phba->mbox_mem_pool); 8417 return rc; 8418 8419 mbx_fail_out: 8420 /* Free memory allocated for mailbox command */ 8421 mempool_free(pmb, phba->mbox_mem_pool); 8422 8423 mem_fail_out: 8424 /* free the irq already requested */ 8425 free_irq(phba->msix_entries[1].vector, phba); 8426 8427 irq_fail_out: 8428 /* free the irq already requested */ 8429 free_irq(phba->msix_entries[0].vector, phba); 8430 8431 msi_fail_out: 8432 /* Unconfigure MSI-X capability structure */ 8433 pci_disable_msix(phba->pcidev); 8434 8435 vec_fail_out: 8436 return rc; 8437 } 8438 8439 /** 8440 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 8441 * @phba: pointer to lpfc hba data structure. 8442 * 8443 * This routine is invoked to release the MSI-X vectors and then disable the 8444 * MSI-X interrupt mode to device with SLI-3 interface spec. 8445 **/ 8446 static void 8447 lpfc_sli_disable_msix(struct lpfc_hba *phba) 8448 { 8449 int i; 8450 8451 /* Free up MSI-X multi-message vectors */ 8452 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 8453 free_irq(phba->msix_entries[i].vector, phba); 8454 /* Disable MSI-X */ 8455 pci_disable_msix(phba->pcidev); 8456 8457 return; 8458 } 8459 8460 /** 8461 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 8462 * @phba: pointer to lpfc hba data structure. 8463 * 8464 * This routine is invoked to enable the MSI interrupt mode to device with 8465 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 8466 * enable the MSI vector. The device driver is responsible for calling the 8467 * request_irq() to register MSI vector with a interrupt the handler, which 8468 * is done in this function. 8469 * 8470 * Return codes 8471 * 0 - successful 8472 * other values - error 8473 */ 8474 static int 8475 lpfc_sli_enable_msi(struct lpfc_hba *phba) 8476 { 8477 int rc; 8478 8479 rc = pci_enable_msi(phba->pcidev); 8480 if (!rc) 8481 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8482 "0462 PCI enable MSI mode success.\n"); 8483 else { 8484 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8485 "0471 PCI enable MSI mode failed (%d)\n", rc); 8486 return rc; 8487 } 8488 8489 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 8490 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8491 if (rc) { 8492 pci_disable_msi(phba->pcidev); 8493 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8494 "0478 MSI request_irq failed (%d)\n", rc); 8495 } 8496 return rc; 8497 } 8498 8499 /** 8500 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 8501 * @phba: pointer to lpfc hba data structure. 8502 * 8503 * This routine is invoked to disable the MSI interrupt mode to device with 8504 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 8505 * done request_irq() on before calling pci_disable_msi(). Failure to do so 8506 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 8507 * its vector. 8508 */ 8509 static void 8510 lpfc_sli_disable_msi(struct lpfc_hba *phba) 8511 { 8512 free_irq(phba->pcidev->irq, phba); 8513 pci_disable_msi(phba->pcidev); 8514 return; 8515 } 8516 8517 /** 8518 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 8519 * @phba: pointer to lpfc hba data structure. 8520 * 8521 * This routine is invoked to enable device interrupt and associate driver's 8522 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 8523 * spec. Depends on the interrupt mode configured to the driver, the driver 8524 * will try to fallback from the configured interrupt mode to an interrupt 8525 * mode which is supported by the platform, kernel, and device in the order 8526 * of: 8527 * MSI-X -> MSI -> IRQ. 8528 * 8529 * Return codes 8530 * 0 - successful 8531 * other values - error 8532 **/ 8533 static uint32_t 8534 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 8535 { 8536 uint32_t intr_mode = LPFC_INTR_ERROR; 8537 int retval; 8538 8539 if (cfg_mode == 2) { 8540 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 8541 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 8542 if (!retval) { 8543 /* Now, try to enable MSI-X interrupt mode */ 8544 retval = lpfc_sli_enable_msix(phba); 8545 if (!retval) { 8546 /* Indicate initialization to MSI-X mode */ 8547 phba->intr_type = MSIX; 8548 intr_mode = 2; 8549 } 8550 } 8551 } 8552 8553 /* Fallback to MSI if MSI-X initialization failed */ 8554 if (cfg_mode >= 1 && phba->intr_type == NONE) { 8555 retval = lpfc_sli_enable_msi(phba); 8556 if (!retval) { 8557 /* Indicate initialization to MSI mode */ 8558 phba->intr_type = MSI; 8559 intr_mode = 1; 8560 } 8561 } 8562 8563 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 8564 if (phba->intr_type == NONE) { 8565 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 8566 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8567 if (!retval) { 8568 /* Indicate initialization to INTx mode */ 8569 phba->intr_type = INTx; 8570 intr_mode = 0; 8571 } 8572 } 8573 return intr_mode; 8574 } 8575 8576 /** 8577 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 8578 * @phba: pointer to lpfc hba data structure. 8579 * 8580 * This routine is invoked to disable device interrupt and disassociate the 8581 * driver's interrupt handler(s) from interrupt vector(s) to device with 8582 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 8583 * release the interrupt vector(s) for the message signaled interrupt. 8584 **/ 8585 static void 8586 lpfc_sli_disable_intr(struct lpfc_hba *phba) 8587 { 8588 /* Disable the currently initialized interrupt mode */ 8589 if (phba->intr_type == MSIX) 8590 lpfc_sli_disable_msix(phba); 8591 else if (phba->intr_type == MSI) 8592 lpfc_sli_disable_msi(phba); 8593 else if (phba->intr_type == INTx) 8594 free_irq(phba->pcidev->irq, phba); 8595 8596 /* Reset interrupt management states */ 8597 phba->intr_type = NONE; 8598 phba->sli.slistat.sli_intr = 0; 8599 8600 return; 8601 } 8602 8603 /** 8604 * lpfc_find_next_cpu - Find next available CPU that matches the phys_id 8605 * @phba: pointer to lpfc hba data structure. 8606 * 8607 * Find next available CPU to use for IRQ to CPU affinity. 8608 */ 8609 static int 8610 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id) 8611 { 8612 struct lpfc_vector_map_info *cpup; 8613 int cpu; 8614 8615 cpup = phba->sli4_hba.cpu_map; 8616 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8617 /* CPU must be online */ 8618 if (cpu_online(cpu)) { 8619 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) && 8620 (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) && 8621 (cpup->phys_id == phys_id)) { 8622 return cpu; 8623 } 8624 } 8625 cpup++; 8626 } 8627 8628 /* 8629 * If we get here, we have used ALL CPUs for the specific 8630 * phys_id. Now we need to clear out lpfc_used_cpu and start 8631 * reusing CPUs. 8632 */ 8633 8634 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8635 if (lpfc_used_cpu[cpu] == phys_id) 8636 lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY; 8637 } 8638 8639 cpup = phba->sli4_hba.cpu_map; 8640 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8641 /* CPU must be online */ 8642 if (cpu_online(cpu)) { 8643 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) && 8644 (cpup->phys_id == phys_id)) { 8645 return cpu; 8646 } 8647 } 8648 cpup++; 8649 } 8650 return LPFC_VECTOR_MAP_EMPTY; 8651 } 8652 8653 /** 8654 * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors 8655 * @phba: pointer to lpfc hba data structure. 8656 * @vectors: number of HBA vectors 8657 * 8658 * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector 8659 * affinization across multple physical CPUs (numa nodes). 8660 * In addition, this routine will assign an IO channel for each CPU 8661 * to use when issuing I/Os. 8662 */ 8663 static int 8664 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors) 8665 { 8666 int i, idx, saved_chann, used_chann, cpu, phys_id; 8667 int max_phys_id, min_phys_id; 8668 int num_io_channel, first_cpu, chan; 8669 struct lpfc_vector_map_info *cpup; 8670 #ifdef CONFIG_X86 8671 struct cpuinfo_x86 *cpuinfo; 8672 #endif 8673 struct cpumask *mask; 8674 uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1]; 8675 8676 /* If there is no mapping, just return */ 8677 if (!phba->cfg_fcp_cpu_map) 8678 return 1; 8679 8680 /* Init cpu_map array */ 8681 memset(phba->sli4_hba.cpu_map, 0xff, 8682 (sizeof(struct lpfc_vector_map_info) * 8683 phba->sli4_hba.num_present_cpu)); 8684 8685 max_phys_id = 0; 8686 min_phys_id = 0xff; 8687 phys_id = 0; 8688 num_io_channel = 0; 8689 first_cpu = LPFC_VECTOR_MAP_EMPTY; 8690 8691 /* Update CPU map with physical id and core id of each CPU */ 8692 cpup = phba->sli4_hba.cpu_map; 8693 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8694 #ifdef CONFIG_X86 8695 cpuinfo = &cpu_data(cpu); 8696 cpup->phys_id = cpuinfo->phys_proc_id; 8697 cpup->core_id = cpuinfo->cpu_core_id; 8698 #else 8699 /* No distinction between CPUs for other platforms */ 8700 cpup->phys_id = 0; 8701 cpup->core_id = 0; 8702 #endif 8703 8704 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8705 "3328 CPU physid %d coreid %d\n", 8706 cpup->phys_id, cpup->core_id); 8707 8708 if (cpup->phys_id > max_phys_id) 8709 max_phys_id = cpup->phys_id; 8710 if (cpup->phys_id < min_phys_id) 8711 min_phys_id = cpup->phys_id; 8712 cpup++; 8713 } 8714 8715 phys_id = min_phys_id; 8716 /* Now associate the HBA vectors with specific CPUs */ 8717 for (idx = 0; idx < vectors; idx++) { 8718 cpup = phba->sli4_hba.cpu_map; 8719 cpu = lpfc_find_next_cpu(phba, phys_id); 8720 if (cpu == LPFC_VECTOR_MAP_EMPTY) { 8721 8722 /* Try for all phys_id's */ 8723 for (i = 1; i < max_phys_id; i++) { 8724 phys_id++; 8725 if (phys_id > max_phys_id) 8726 phys_id = min_phys_id; 8727 cpu = lpfc_find_next_cpu(phba, phys_id); 8728 if (cpu == LPFC_VECTOR_MAP_EMPTY) 8729 continue; 8730 goto found; 8731 } 8732 8733 /* Use round robin for scheduling */ 8734 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN; 8735 chan = 0; 8736 cpup = phba->sli4_hba.cpu_map; 8737 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 8738 cpup->channel_id = chan; 8739 cpup++; 8740 chan++; 8741 if (chan >= phba->cfg_fcp_io_channel) 8742 chan = 0; 8743 } 8744 8745 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8746 "3329 Cannot set affinity:" 8747 "Error mapping vector %d (%d)\n", 8748 idx, vectors); 8749 return 0; 8750 } 8751 found: 8752 cpup += cpu; 8753 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP) 8754 lpfc_used_cpu[cpu] = phys_id; 8755 8756 /* Associate vector with selected CPU */ 8757 cpup->irq = phba->sli4_hba.msix_entries[idx].vector; 8758 8759 /* Associate IO channel with selected CPU */ 8760 cpup->channel_id = idx; 8761 num_io_channel++; 8762 8763 if (first_cpu == LPFC_VECTOR_MAP_EMPTY) 8764 first_cpu = cpu; 8765 8766 /* Now affinitize to the selected CPU */ 8767 mask = &cpup->maskbits; 8768 cpumask_clear(mask); 8769 cpumask_set_cpu(cpu, mask); 8770 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx]. 8771 vector, mask); 8772 8773 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8774 "3330 Set Affinity: CPU %d channel %d " 8775 "irq %d (%x)\n", 8776 cpu, cpup->channel_id, 8777 phba->sli4_hba.msix_entries[idx].vector, i); 8778 8779 /* Spread vector mapping across multple physical CPU nodes */ 8780 phys_id++; 8781 if (phys_id > max_phys_id) 8782 phys_id = min_phys_id; 8783 } 8784 8785 /* 8786 * Finally fill in the IO channel for any remaining CPUs. 8787 * At this point, all IO channels have been assigned to a specific 8788 * MSIx vector, mapped to a specific CPU. 8789 * Base the remaining IO channel assigned, to IO channels already 8790 * assigned to other CPUs on the same phys_id. 8791 */ 8792 for (i = min_phys_id; i <= max_phys_id; i++) { 8793 /* 8794 * If there are no io channels already mapped to 8795 * this phys_id, just round robin thru the io_channels. 8796 * Setup chann[] for round robin. 8797 */ 8798 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 8799 chann[idx] = idx; 8800 8801 saved_chann = 0; 8802 used_chann = 0; 8803 8804 /* 8805 * First build a list of IO channels already assigned 8806 * to this phys_id before reassigning the same IO 8807 * channels to the remaining CPUs. 8808 */ 8809 cpup = phba->sli4_hba.cpu_map; 8810 cpu = first_cpu; 8811 cpup += cpu; 8812 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; 8813 idx++) { 8814 if (cpup->phys_id == i) { 8815 /* 8816 * Save any IO channels that are 8817 * already mapped to this phys_id. 8818 */ 8819 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) { 8820 chann[saved_chann] = 8821 cpup->channel_id; 8822 saved_chann++; 8823 goto out; 8824 } 8825 8826 /* See if we are using round-robin */ 8827 if (saved_chann == 0) 8828 saved_chann = 8829 phba->cfg_fcp_io_channel; 8830 8831 /* Associate next IO channel with CPU */ 8832 cpup->channel_id = chann[used_chann]; 8833 num_io_channel++; 8834 used_chann++; 8835 if (used_chann == saved_chann) 8836 used_chann = 0; 8837 8838 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8839 "3331 Set IO_CHANN " 8840 "CPU %d channel %d\n", 8841 idx, cpup->channel_id); 8842 } 8843 out: 8844 cpu++; 8845 if (cpu >= phba->sli4_hba.num_present_cpu) { 8846 cpup = phba->sli4_hba.cpu_map; 8847 cpu = 0; 8848 } else { 8849 cpup++; 8850 } 8851 } 8852 } 8853 8854 if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) { 8855 cpup = phba->sli4_hba.cpu_map; 8856 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) { 8857 if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) { 8858 cpup->channel_id = 0; 8859 num_io_channel++; 8860 8861 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8862 "3332 Assign IO_CHANN " 8863 "CPU %d channel %d\n", 8864 idx, cpup->channel_id); 8865 } 8866 cpup++; 8867 } 8868 } 8869 8870 /* Sanity check */ 8871 if (num_io_channel != phba->sli4_hba.num_present_cpu) 8872 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8873 "3333 Set affinity mismatch:" 8874 "%d chann != %d cpus: %d vectors\n", 8875 num_io_channel, phba->sli4_hba.num_present_cpu, 8876 vectors); 8877 8878 /* Enable using cpu affinity for scheduling */ 8879 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU; 8880 return 1; 8881 } 8882 8883 8884 /** 8885 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 8886 * @phba: pointer to lpfc hba data structure. 8887 * 8888 * This routine is invoked to enable the MSI-X interrupt vectors to device 8889 * with SLI-4 interface spec. The kernel function pci_enable_msix_range() 8890 * is called to enable the MSI-X vectors. The device driver is responsible 8891 * for calling the individual request_irq() to register each MSI-X vector 8892 * with a interrupt handler, which is done in this function. Note that 8893 * later when device is unloading, the driver should always call free_irq() 8894 * on all MSI-X vectors it has done request_irq() on before calling 8895 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 8896 * will be left with MSI-X enabled and leaks its vectors. 8897 * 8898 * Return codes 8899 * 0 - successful 8900 * other values - error 8901 **/ 8902 static int 8903 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 8904 { 8905 int vectors, rc, index; 8906 8907 /* Set up MSI-X multi-message vectors */ 8908 for (index = 0; index < phba->cfg_fcp_io_channel; index++) 8909 phba->sli4_hba.msix_entries[index].entry = index; 8910 8911 /* Configure MSI-X capability structure */ 8912 vectors = phba->cfg_fcp_io_channel; 8913 if (phba->cfg_fof) { 8914 phba->sli4_hba.msix_entries[index].entry = index; 8915 vectors++; 8916 } 8917 rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries, 8918 2, vectors); 8919 if (rc < 0) { 8920 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8921 "0484 PCI enable MSI-X failed (%d)\n", rc); 8922 goto vec_fail_out; 8923 } 8924 vectors = rc; 8925 8926 /* Log MSI-X vector assignment */ 8927 for (index = 0; index < vectors; index++) 8928 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8929 "0489 MSI-X entry[%d]: vector=x%x " 8930 "message=%d\n", index, 8931 phba->sli4_hba.msix_entries[index].vector, 8932 phba->sli4_hba.msix_entries[index].entry); 8933 8934 /* Assign MSI-X vectors to interrupt handlers */ 8935 for (index = 0; index < vectors; index++) { 8936 memset(&phba->sli4_hba.handler_name[index], 0, 16); 8937 snprintf((char *)&phba->sli4_hba.handler_name[index], 8938 LPFC_SLI4_HANDLER_NAME_SZ, 8939 LPFC_DRIVER_HANDLER_NAME"%d", index); 8940 8941 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8942 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8943 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1); 8944 if (phba->cfg_fof && (index == (vectors - 1))) 8945 rc = request_irq( 8946 phba->sli4_hba.msix_entries[index].vector, 8947 &lpfc_sli4_fof_intr_handler, IRQF_SHARED, 8948 (char *)&phba->sli4_hba.handler_name[index], 8949 &phba->sli4_hba.fcp_eq_hdl[index]); 8950 else 8951 rc = request_irq( 8952 phba->sli4_hba.msix_entries[index].vector, 8953 &lpfc_sli4_hba_intr_handler, IRQF_SHARED, 8954 (char *)&phba->sli4_hba.handler_name[index], 8955 &phba->sli4_hba.fcp_eq_hdl[index]); 8956 if (rc) { 8957 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8958 "0486 MSI-X fast-path (%d) " 8959 "request_irq failed (%d)\n", index, rc); 8960 goto cfg_fail_out; 8961 } 8962 } 8963 8964 if (phba->cfg_fof) 8965 vectors--; 8966 8967 if (vectors != phba->cfg_fcp_io_channel) { 8968 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8969 "3238 Reducing IO channels to match number of " 8970 "MSI-X vectors, requested %d got %d\n", 8971 phba->cfg_fcp_io_channel, vectors); 8972 phba->cfg_fcp_io_channel = vectors; 8973 } 8974 8975 lpfc_sli4_set_affinity(phba, vectors); 8976 return rc; 8977 8978 cfg_fail_out: 8979 /* free the irq already requested */ 8980 for (--index; index >= 0; index--) { 8981 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index]. 8982 vector, NULL); 8983 free_irq(phba->sli4_hba.msix_entries[index].vector, 8984 &phba->sli4_hba.fcp_eq_hdl[index]); 8985 } 8986 8987 /* Unconfigure MSI-X capability structure */ 8988 pci_disable_msix(phba->pcidev); 8989 8990 vec_fail_out: 8991 return rc; 8992 } 8993 8994 /** 8995 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 8996 * @phba: pointer to lpfc hba data structure. 8997 * 8998 * This routine is invoked to release the MSI-X vectors and then disable the 8999 * MSI-X interrupt mode to device with SLI-4 interface spec. 9000 **/ 9001 static void 9002 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 9003 { 9004 int index; 9005 9006 /* Free up MSI-X multi-message vectors */ 9007 for (index = 0; index < phba->cfg_fcp_io_channel; index++) { 9008 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index]. 9009 vector, NULL); 9010 free_irq(phba->sli4_hba.msix_entries[index].vector, 9011 &phba->sli4_hba.fcp_eq_hdl[index]); 9012 } 9013 if (phba->cfg_fof) { 9014 free_irq(phba->sli4_hba.msix_entries[index].vector, 9015 &phba->sli4_hba.fcp_eq_hdl[index]); 9016 } 9017 /* Disable MSI-X */ 9018 pci_disable_msix(phba->pcidev); 9019 9020 return; 9021 } 9022 9023 /** 9024 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 9025 * @phba: pointer to lpfc hba data structure. 9026 * 9027 * This routine is invoked to enable the MSI interrupt mode to device with 9028 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 9029 * to enable the MSI vector. The device driver is responsible for calling 9030 * the request_irq() to register MSI vector with a interrupt the handler, 9031 * which is done in this function. 9032 * 9033 * Return codes 9034 * 0 - successful 9035 * other values - error 9036 **/ 9037 static int 9038 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 9039 { 9040 int rc, index; 9041 9042 rc = pci_enable_msi(phba->pcidev); 9043 if (!rc) 9044 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9045 "0487 PCI enable MSI mode success.\n"); 9046 else { 9047 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9048 "0488 PCI enable MSI mode failed (%d)\n", rc); 9049 return rc; 9050 } 9051 9052 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9053 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9054 if (rc) { 9055 pci_disable_msi(phba->pcidev); 9056 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9057 "0490 MSI request_irq failed (%d)\n", rc); 9058 return rc; 9059 } 9060 9061 for (index = 0; index < phba->cfg_fcp_io_channel; index++) { 9062 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 9063 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 9064 } 9065 9066 if (phba->cfg_fof) { 9067 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 9068 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 9069 } 9070 return 0; 9071 } 9072 9073 /** 9074 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 9075 * @phba: pointer to lpfc hba data structure. 9076 * 9077 * This routine is invoked to disable the MSI interrupt mode to device with 9078 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 9079 * done request_irq() on before calling pci_disable_msi(). Failure to do so 9080 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 9081 * its vector. 9082 **/ 9083 static void 9084 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 9085 { 9086 free_irq(phba->pcidev->irq, phba); 9087 pci_disable_msi(phba->pcidev); 9088 return; 9089 } 9090 9091 /** 9092 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 9093 * @phba: pointer to lpfc hba data structure. 9094 * 9095 * This routine is invoked to enable device interrupt and associate driver's 9096 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 9097 * interface spec. Depends on the interrupt mode configured to the driver, 9098 * the driver will try to fallback from the configured interrupt mode to an 9099 * interrupt mode which is supported by the platform, kernel, and device in 9100 * the order of: 9101 * MSI-X -> MSI -> IRQ. 9102 * 9103 * Return codes 9104 * 0 - successful 9105 * other values - error 9106 **/ 9107 static uint32_t 9108 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9109 { 9110 uint32_t intr_mode = LPFC_INTR_ERROR; 9111 int retval, index; 9112 9113 if (cfg_mode == 2) { 9114 /* Preparation before conf_msi mbox cmd */ 9115 retval = 0; 9116 if (!retval) { 9117 /* Now, try to enable MSI-X interrupt mode */ 9118 retval = lpfc_sli4_enable_msix(phba); 9119 if (!retval) { 9120 /* Indicate initialization to MSI-X mode */ 9121 phba->intr_type = MSIX; 9122 intr_mode = 2; 9123 } 9124 } 9125 } 9126 9127 /* Fallback to MSI if MSI-X initialization failed */ 9128 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9129 retval = lpfc_sli4_enable_msi(phba); 9130 if (!retval) { 9131 /* Indicate initialization to MSI mode */ 9132 phba->intr_type = MSI; 9133 intr_mode = 1; 9134 } 9135 } 9136 9137 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9138 if (phba->intr_type == NONE) { 9139 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9140 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9141 if (!retval) { 9142 /* Indicate initialization to INTx mode */ 9143 phba->intr_type = INTx; 9144 intr_mode = 0; 9145 for (index = 0; index < phba->cfg_fcp_io_channel; 9146 index++) { 9147 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 9148 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 9149 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index]. 9150 fcp_eq_in_use, 1); 9151 } 9152 if (phba->cfg_fof) { 9153 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 9154 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 9155 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index]. 9156 fcp_eq_in_use, 1); 9157 } 9158 } 9159 } 9160 return intr_mode; 9161 } 9162 9163 /** 9164 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 9165 * @phba: pointer to lpfc hba data structure. 9166 * 9167 * This routine is invoked to disable device interrupt and disassociate 9168 * the driver's interrupt handler(s) from interrupt vector(s) to device 9169 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 9170 * will release the interrupt vector(s) for the message signaled interrupt. 9171 **/ 9172 static void 9173 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 9174 { 9175 /* Disable the currently initialized interrupt mode */ 9176 if (phba->intr_type == MSIX) 9177 lpfc_sli4_disable_msix(phba); 9178 else if (phba->intr_type == MSI) 9179 lpfc_sli4_disable_msi(phba); 9180 else if (phba->intr_type == INTx) 9181 free_irq(phba->pcidev->irq, phba); 9182 9183 /* Reset interrupt management states */ 9184 phba->intr_type = NONE; 9185 phba->sli.slistat.sli_intr = 0; 9186 9187 return; 9188 } 9189 9190 /** 9191 * lpfc_unset_hba - Unset SLI3 hba device initialization 9192 * @phba: pointer to lpfc hba data structure. 9193 * 9194 * This routine is invoked to unset the HBA device initialization steps to 9195 * a device with SLI-3 interface spec. 9196 **/ 9197 static void 9198 lpfc_unset_hba(struct lpfc_hba *phba) 9199 { 9200 struct lpfc_vport *vport = phba->pport; 9201 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 9202 9203 spin_lock_irq(shost->host_lock); 9204 vport->load_flag |= FC_UNLOADING; 9205 spin_unlock_irq(shost->host_lock); 9206 9207 kfree(phba->vpi_bmask); 9208 kfree(phba->vpi_ids); 9209 9210 lpfc_stop_hba_timers(phba); 9211 9212 phba->pport->work_port_events = 0; 9213 9214 lpfc_sli_hba_down(phba); 9215 9216 lpfc_sli_brdrestart(phba); 9217 9218 lpfc_sli_disable_intr(phba); 9219 9220 return; 9221 } 9222 9223 /** 9224 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 9225 * @phba: Pointer to HBA context object. 9226 * 9227 * This function is called in the SLI4 code path to wait for completion 9228 * of device's XRIs exchange busy. It will check the XRI exchange busy 9229 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 9230 * that, it will check the XRI exchange busy on outstanding FCP and ELS 9231 * I/Os every 30 seconds, log error message, and wait forever. Only when 9232 * all XRI exchange busy complete, the driver unload shall proceed with 9233 * invoking the function reset ioctl mailbox command to the CNA and the 9234 * the rest of the driver unload resource release. 9235 **/ 9236 static void 9237 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 9238 { 9239 int wait_time = 0; 9240 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 9241 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 9242 9243 while (!fcp_xri_cmpl || !els_xri_cmpl) { 9244 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 9245 if (!fcp_xri_cmpl) 9246 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9247 "2877 FCP XRI exchange busy " 9248 "wait time: %d seconds.\n", 9249 wait_time/1000); 9250 if (!els_xri_cmpl) 9251 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9252 "2878 ELS XRI exchange busy " 9253 "wait time: %d seconds.\n", 9254 wait_time/1000); 9255 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 9256 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 9257 } else { 9258 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 9259 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 9260 } 9261 fcp_xri_cmpl = 9262 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 9263 els_xri_cmpl = 9264 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 9265 } 9266 } 9267 9268 /** 9269 * lpfc_sli4_hba_unset - Unset the fcoe hba 9270 * @phba: Pointer to HBA context object. 9271 * 9272 * This function is called in the SLI4 code path to reset the HBA's FCoE 9273 * function. The caller is not required to hold any lock. This routine 9274 * issues PCI function reset mailbox command to reset the FCoE function. 9275 * At the end of the function, it calls lpfc_hba_down_post function to 9276 * free any pending commands. 9277 **/ 9278 static void 9279 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 9280 { 9281 int wait_cnt = 0; 9282 LPFC_MBOXQ_t *mboxq; 9283 struct pci_dev *pdev = phba->pcidev; 9284 9285 lpfc_stop_hba_timers(phba); 9286 phba->sli4_hba.intr_enable = 0; 9287 9288 /* 9289 * Gracefully wait out the potential current outstanding asynchronous 9290 * mailbox command. 9291 */ 9292 9293 /* First, block any pending async mailbox command from posted */ 9294 spin_lock_irq(&phba->hbalock); 9295 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 9296 spin_unlock_irq(&phba->hbalock); 9297 /* Now, trying to wait it out if we can */ 9298 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 9299 msleep(10); 9300 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 9301 break; 9302 } 9303 /* Forcefully release the outstanding mailbox command if timed out */ 9304 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 9305 spin_lock_irq(&phba->hbalock); 9306 mboxq = phba->sli.mbox_active; 9307 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 9308 __lpfc_mbox_cmpl_put(phba, mboxq); 9309 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 9310 phba->sli.mbox_active = NULL; 9311 spin_unlock_irq(&phba->hbalock); 9312 } 9313 9314 /* Abort all iocbs associated with the hba */ 9315 lpfc_sli_hba_iocb_abort(phba); 9316 9317 /* Wait for completion of device XRI exchange busy */ 9318 lpfc_sli4_xri_exchange_busy_wait(phba); 9319 9320 /* Disable PCI subsystem interrupt */ 9321 lpfc_sli4_disable_intr(phba); 9322 9323 /* Disable SR-IOV if enabled */ 9324 if (phba->cfg_sriov_nr_virtfn) 9325 pci_disable_sriov(pdev); 9326 9327 /* Stop kthread signal shall trigger work_done one more time */ 9328 kthread_stop(phba->worker_thread); 9329 9330 /* Reset SLI4 HBA FCoE function */ 9331 lpfc_pci_function_reset(phba); 9332 lpfc_sli4_queue_destroy(phba); 9333 9334 /* Stop the SLI4 device port */ 9335 phba->pport->work_port_events = 0; 9336 } 9337 9338 /** 9339 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 9340 * @phba: Pointer to HBA context object. 9341 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 9342 * 9343 * This function is called in the SLI4 code path to read the port's 9344 * sli4 capabilities. 9345 * 9346 * This function may be be called from any context that can block-wait 9347 * for the completion. The expectation is that this routine is called 9348 * typically from probe_one or from the online routine. 9349 **/ 9350 int 9351 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 9352 { 9353 int rc; 9354 struct lpfc_mqe *mqe; 9355 struct lpfc_pc_sli4_params *sli4_params; 9356 uint32_t mbox_tmo; 9357 9358 rc = 0; 9359 mqe = &mboxq->u.mqe; 9360 9361 /* Read the port's SLI4 Parameters port capabilities */ 9362 lpfc_pc_sli4_params(mboxq); 9363 if (!phba->sli4_hba.intr_enable) 9364 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9365 else { 9366 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 9367 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 9368 } 9369 9370 if (unlikely(rc)) 9371 return 1; 9372 9373 sli4_params = &phba->sli4_hba.pc_sli4_params; 9374 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 9375 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 9376 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 9377 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 9378 &mqe->un.sli4_params); 9379 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 9380 &mqe->un.sli4_params); 9381 sli4_params->proto_types = mqe->un.sli4_params.word3; 9382 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 9383 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 9384 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 9385 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 9386 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 9387 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 9388 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 9389 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 9390 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 9391 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 9392 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 9393 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 9394 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 9395 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 9396 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 9397 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 9398 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 9399 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 9400 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 9401 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 9402 9403 /* Make sure that sge_supp_len can be handled by the driver */ 9404 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 9405 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 9406 9407 return rc; 9408 } 9409 9410 /** 9411 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 9412 * @phba: Pointer to HBA context object. 9413 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 9414 * 9415 * This function is called in the SLI4 code path to read the port's 9416 * sli4 capabilities. 9417 * 9418 * This function may be be called from any context that can block-wait 9419 * for the completion. The expectation is that this routine is called 9420 * typically from probe_one or from the online routine. 9421 **/ 9422 int 9423 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 9424 { 9425 int rc; 9426 struct lpfc_mqe *mqe = &mboxq->u.mqe; 9427 struct lpfc_pc_sli4_params *sli4_params; 9428 uint32_t mbox_tmo; 9429 int length; 9430 struct lpfc_sli4_parameters *mbx_sli4_parameters; 9431 9432 /* 9433 * By default, the driver assumes the SLI4 port requires RPI 9434 * header postings. The SLI4_PARAM response will correct this 9435 * assumption. 9436 */ 9437 phba->sli4_hba.rpi_hdrs_in_use = 1; 9438 9439 /* Read the port's SLI4 Config Parameters */ 9440 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 9441 sizeof(struct lpfc_sli4_cfg_mhdr)); 9442 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 9443 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 9444 length, LPFC_SLI4_MBX_EMBED); 9445 if (!phba->sli4_hba.intr_enable) 9446 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9447 else { 9448 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 9449 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 9450 } 9451 if (unlikely(rc)) 9452 return rc; 9453 sli4_params = &phba->sli4_hba.pc_sli4_params; 9454 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 9455 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 9456 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 9457 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 9458 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 9459 mbx_sli4_parameters); 9460 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 9461 mbx_sli4_parameters); 9462 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 9463 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 9464 else 9465 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 9466 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 9467 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 9468 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters); 9469 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 9470 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 9471 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 9472 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 9473 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters); 9474 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 9475 mbx_sli4_parameters); 9476 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 9477 mbx_sli4_parameters); 9478 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 9479 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 9480 9481 /* Make sure that sge_supp_len can be handled by the driver */ 9482 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 9483 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 9484 9485 return 0; 9486 } 9487 9488 /** 9489 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 9490 * @pdev: pointer to PCI device 9491 * @pid: pointer to PCI device identifier 9492 * 9493 * This routine is to be called to attach a device with SLI-3 interface spec 9494 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 9495 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 9496 * information of the device and driver to see if the driver state that it can 9497 * support this kind of device. If the match is successful, the driver core 9498 * invokes this routine. If this routine determines it can claim the HBA, it 9499 * does all the initialization that it needs to do to handle the HBA properly. 9500 * 9501 * Return code 9502 * 0 - driver can claim the device 9503 * negative value - driver can not claim the device 9504 **/ 9505 static int 9506 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 9507 { 9508 struct lpfc_hba *phba; 9509 struct lpfc_vport *vport = NULL; 9510 struct Scsi_Host *shost = NULL; 9511 int error; 9512 uint32_t cfg_mode, intr_mode; 9513 9514 /* Allocate memory for HBA structure */ 9515 phba = lpfc_hba_alloc(pdev); 9516 if (!phba) 9517 return -ENOMEM; 9518 9519 /* Perform generic PCI device enabling operation */ 9520 error = lpfc_enable_pci_dev(phba); 9521 if (error) 9522 goto out_free_phba; 9523 9524 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 9525 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 9526 if (error) 9527 goto out_disable_pci_dev; 9528 9529 /* Set up SLI-3 specific device PCI memory space */ 9530 error = lpfc_sli_pci_mem_setup(phba); 9531 if (error) { 9532 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9533 "1402 Failed to set up pci memory space.\n"); 9534 goto out_disable_pci_dev; 9535 } 9536 9537 /* Set up phase-1 common device driver resources */ 9538 error = lpfc_setup_driver_resource_phase1(phba); 9539 if (error) { 9540 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9541 "1403 Failed to set up driver resource.\n"); 9542 goto out_unset_pci_mem_s3; 9543 } 9544 9545 /* Set up SLI-3 specific device driver resources */ 9546 error = lpfc_sli_driver_resource_setup(phba); 9547 if (error) { 9548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9549 "1404 Failed to set up driver resource.\n"); 9550 goto out_unset_pci_mem_s3; 9551 } 9552 9553 /* Initialize and populate the iocb list per host */ 9554 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 9555 if (error) { 9556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9557 "1405 Failed to initialize iocb list.\n"); 9558 goto out_unset_driver_resource_s3; 9559 } 9560 9561 /* Set up common device driver resources */ 9562 error = lpfc_setup_driver_resource_phase2(phba); 9563 if (error) { 9564 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9565 "1406 Failed to set up driver resource.\n"); 9566 goto out_free_iocb_list; 9567 } 9568 9569 /* Get the default values for Model Name and Description */ 9570 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 9571 9572 /* Create SCSI host to the physical port */ 9573 error = lpfc_create_shost(phba); 9574 if (error) { 9575 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9576 "1407 Failed to create scsi host.\n"); 9577 goto out_unset_driver_resource; 9578 } 9579 9580 /* Configure sysfs attributes */ 9581 vport = phba->pport; 9582 error = lpfc_alloc_sysfs_attr(vport); 9583 if (error) { 9584 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9585 "1476 Failed to allocate sysfs attr\n"); 9586 goto out_destroy_shost; 9587 } 9588 9589 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 9590 /* Now, trying to enable interrupt and bring up the device */ 9591 cfg_mode = phba->cfg_use_msi; 9592 while (true) { 9593 /* Put device to a known state before enabling interrupt */ 9594 lpfc_stop_port(phba); 9595 /* Configure and enable interrupt */ 9596 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 9597 if (intr_mode == LPFC_INTR_ERROR) { 9598 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9599 "0431 Failed to enable interrupt.\n"); 9600 error = -ENODEV; 9601 goto out_free_sysfs_attr; 9602 } 9603 /* SLI-3 HBA setup */ 9604 if (lpfc_sli_hba_setup(phba)) { 9605 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9606 "1477 Failed to set up hba\n"); 9607 error = -ENODEV; 9608 goto out_remove_device; 9609 } 9610 9611 /* Wait 50ms for the interrupts of previous mailbox commands */ 9612 msleep(50); 9613 /* Check active interrupts on message signaled interrupts */ 9614 if (intr_mode == 0 || 9615 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 9616 /* Log the current active interrupt mode */ 9617 phba->intr_mode = intr_mode; 9618 lpfc_log_intr_mode(phba, intr_mode); 9619 break; 9620 } else { 9621 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9622 "0447 Configure interrupt mode (%d) " 9623 "failed active interrupt test.\n", 9624 intr_mode); 9625 /* Disable the current interrupt mode */ 9626 lpfc_sli_disable_intr(phba); 9627 /* Try next level of interrupt mode */ 9628 cfg_mode = --intr_mode; 9629 } 9630 } 9631 9632 /* Perform post initialization setup */ 9633 lpfc_post_init_setup(phba); 9634 9635 /* Check if there are static vports to be created. */ 9636 lpfc_create_static_vport(phba); 9637 9638 return 0; 9639 9640 out_remove_device: 9641 lpfc_unset_hba(phba); 9642 out_free_sysfs_attr: 9643 lpfc_free_sysfs_attr(vport); 9644 out_destroy_shost: 9645 lpfc_destroy_shost(phba); 9646 out_unset_driver_resource: 9647 lpfc_unset_driver_resource_phase2(phba); 9648 out_free_iocb_list: 9649 lpfc_free_iocb_list(phba); 9650 out_unset_driver_resource_s3: 9651 lpfc_sli_driver_resource_unset(phba); 9652 out_unset_pci_mem_s3: 9653 lpfc_sli_pci_mem_unset(phba); 9654 out_disable_pci_dev: 9655 lpfc_disable_pci_dev(phba); 9656 if (shost) 9657 scsi_host_put(shost); 9658 out_free_phba: 9659 lpfc_hba_free(phba); 9660 return error; 9661 } 9662 9663 /** 9664 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 9665 * @pdev: pointer to PCI device 9666 * 9667 * This routine is to be called to disattach a device with SLI-3 interface 9668 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 9669 * removed from PCI bus, it performs all the necessary cleanup for the HBA 9670 * device to be removed from the PCI subsystem properly. 9671 **/ 9672 static void 9673 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 9674 { 9675 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9676 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 9677 struct lpfc_vport **vports; 9678 struct lpfc_hba *phba = vport->phba; 9679 int i; 9680 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 9681 9682 spin_lock_irq(&phba->hbalock); 9683 vport->load_flag |= FC_UNLOADING; 9684 spin_unlock_irq(&phba->hbalock); 9685 9686 lpfc_free_sysfs_attr(vport); 9687 9688 /* Release all the vports against this physical port */ 9689 vports = lpfc_create_vport_work_array(phba); 9690 if (vports != NULL) 9691 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 9692 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 9693 continue; 9694 fc_vport_terminate(vports[i]->fc_vport); 9695 } 9696 lpfc_destroy_vport_work_array(phba, vports); 9697 9698 /* Remove FC host and then SCSI host with the physical port */ 9699 fc_remove_host(shost); 9700 scsi_remove_host(shost); 9701 lpfc_cleanup(vport); 9702 9703 /* 9704 * Bring down the SLI Layer. This step disable all interrupts, 9705 * clears the rings, discards all mailbox commands, and resets 9706 * the HBA. 9707 */ 9708 9709 /* HBA interrupt will be disabled after this call */ 9710 lpfc_sli_hba_down(phba); 9711 /* Stop kthread signal shall trigger work_done one more time */ 9712 kthread_stop(phba->worker_thread); 9713 /* Final cleanup of txcmplq and reset the HBA */ 9714 lpfc_sli_brdrestart(phba); 9715 9716 kfree(phba->vpi_bmask); 9717 kfree(phba->vpi_ids); 9718 9719 lpfc_stop_hba_timers(phba); 9720 spin_lock_irq(&phba->hbalock); 9721 list_del_init(&vport->listentry); 9722 spin_unlock_irq(&phba->hbalock); 9723 9724 lpfc_debugfs_terminate(vport); 9725 9726 /* Disable SR-IOV if enabled */ 9727 if (phba->cfg_sriov_nr_virtfn) 9728 pci_disable_sriov(pdev); 9729 9730 /* Disable interrupt */ 9731 lpfc_sli_disable_intr(phba); 9732 9733 scsi_host_put(shost); 9734 9735 /* 9736 * Call scsi_free before mem_free since scsi bufs are released to their 9737 * corresponding pools here. 9738 */ 9739 lpfc_scsi_free(phba); 9740 lpfc_mem_free_all(phba); 9741 9742 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 9743 phba->hbqslimp.virt, phba->hbqslimp.phys); 9744 9745 /* Free resources associated with SLI2 interface */ 9746 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 9747 phba->slim2p.virt, phba->slim2p.phys); 9748 9749 /* unmap adapter SLIM and Control Registers */ 9750 iounmap(phba->ctrl_regs_memmap_p); 9751 iounmap(phba->slim_memmap_p); 9752 9753 lpfc_hba_free(phba); 9754 9755 pci_release_selected_regions(pdev, bars); 9756 pci_disable_device(pdev); 9757 } 9758 9759 /** 9760 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 9761 * @pdev: pointer to PCI device 9762 * @msg: power management message 9763 * 9764 * This routine is to be called from the kernel's PCI subsystem to support 9765 * system Power Management (PM) to device with SLI-3 interface spec. When 9766 * PM invokes this method, it quiesces the device by stopping the driver's 9767 * worker thread for the device, turning off device's interrupt and DMA, 9768 * and bring the device offline. Note that as the driver implements the 9769 * minimum PM requirements to a power-aware driver's PM support for the 9770 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 9771 * to the suspend() method call will be treated as SUSPEND and the driver will 9772 * fully reinitialize its device during resume() method call, the driver will 9773 * set device to PCI_D3hot state in PCI config space instead of setting it 9774 * according to the @msg provided by the PM. 9775 * 9776 * Return code 9777 * 0 - driver suspended the device 9778 * Error otherwise 9779 **/ 9780 static int 9781 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 9782 { 9783 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9784 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9785 9786 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9787 "0473 PCI device Power Management suspend.\n"); 9788 9789 /* Bring down the device */ 9790 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 9791 lpfc_offline(phba); 9792 kthread_stop(phba->worker_thread); 9793 9794 /* Disable interrupt from device */ 9795 lpfc_sli_disable_intr(phba); 9796 9797 /* Save device state to PCI config space */ 9798 pci_save_state(pdev); 9799 pci_set_power_state(pdev, PCI_D3hot); 9800 9801 return 0; 9802 } 9803 9804 /** 9805 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 9806 * @pdev: pointer to PCI device 9807 * 9808 * This routine is to be called from the kernel's PCI subsystem to support 9809 * system Power Management (PM) to device with SLI-3 interface spec. When PM 9810 * invokes this method, it restores the device's PCI config space state and 9811 * fully reinitializes the device and brings it online. Note that as the 9812 * driver implements the minimum PM requirements to a power-aware driver's 9813 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 9814 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 9815 * driver will fully reinitialize its device during resume() method call, 9816 * the device will be set to PCI_D0 directly in PCI config space before 9817 * restoring the state. 9818 * 9819 * Return code 9820 * 0 - driver suspended the device 9821 * Error otherwise 9822 **/ 9823 static int 9824 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 9825 { 9826 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9827 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9828 uint32_t intr_mode; 9829 int error; 9830 9831 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9832 "0452 PCI device Power Management resume.\n"); 9833 9834 /* Restore device state from PCI config space */ 9835 pci_set_power_state(pdev, PCI_D0); 9836 pci_restore_state(pdev); 9837 9838 /* 9839 * As the new kernel behavior of pci_restore_state() API call clears 9840 * device saved_state flag, need to save the restored state again. 9841 */ 9842 pci_save_state(pdev); 9843 9844 if (pdev->is_busmaster) 9845 pci_set_master(pdev); 9846 9847 /* Startup the kernel thread for this host adapter. */ 9848 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9849 "lpfc_worker_%d", phba->brd_no); 9850 if (IS_ERR(phba->worker_thread)) { 9851 error = PTR_ERR(phba->worker_thread); 9852 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9853 "0434 PM resume failed to start worker " 9854 "thread: error=x%x.\n", error); 9855 return error; 9856 } 9857 9858 /* Configure and enable interrupt */ 9859 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 9860 if (intr_mode == LPFC_INTR_ERROR) { 9861 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9862 "0430 PM resume Failed to enable interrupt\n"); 9863 return -EIO; 9864 } else 9865 phba->intr_mode = intr_mode; 9866 9867 /* Restart HBA and bring it online */ 9868 lpfc_sli_brdrestart(phba); 9869 lpfc_online(phba); 9870 9871 /* Log the current active interrupt mode */ 9872 lpfc_log_intr_mode(phba, phba->intr_mode); 9873 9874 return 0; 9875 } 9876 9877 /** 9878 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 9879 * @phba: pointer to lpfc hba data structure. 9880 * 9881 * This routine is called to prepare the SLI3 device for PCI slot recover. It 9882 * aborts all the outstanding SCSI I/Os to the pci device. 9883 **/ 9884 static void 9885 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 9886 { 9887 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9888 "2723 PCI channel I/O abort preparing for recovery\n"); 9889 9890 /* 9891 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9892 * and let the SCSI mid-layer to retry them to recover. 9893 */ 9894 lpfc_sli_abort_fcp_rings(phba); 9895 } 9896 9897 /** 9898 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 9899 * @phba: pointer to lpfc hba data structure. 9900 * 9901 * This routine is called to prepare the SLI3 device for PCI slot reset. It 9902 * disables the device interrupt and pci device, and aborts the internal FCP 9903 * pending I/Os. 9904 **/ 9905 static void 9906 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 9907 { 9908 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9909 "2710 PCI channel disable preparing for reset\n"); 9910 9911 /* Block any management I/Os to the device */ 9912 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 9913 9914 /* Block all SCSI devices' I/Os on the host */ 9915 lpfc_scsi_dev_block(phba); 9916 9917 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9918 lpfc_sli_flush_fcp_rings(phba); 9919 9920 /* stop all timers */ 9921 lpfc_stop_hba_timers(phba); 9922 9923 /* Disable interrupt and pci device */ 9924 lpfc_sli_disable_intr(phba); 9925 pci_disable_device(phba->pcidev); 9926 } 9927 9928 /** 9929 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 9930 * @phba: pointer to lpfc hba data structure. 9931 * 9932 * This routine is called to prepare the SLI3 device for PCI slot permanently 9933 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9934 * pending I/Os. 9935 **/ 9936 static void 9937 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9938 { 9939 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9940 "2711 PCI channel permanent disable for failure\n"); 9941 /* Block all SCSI devices' I/Os on the host */ 9942 lpfc_scsi_dev_block(phba); 9943 9944 /* stop all timers */ 9945 lpfc_stop_hba_timers(phba); 9946 9947 /* Clean up all driver's outstanding SCSI I/Os */ 9948 lpfc_sli_flush_fcp_rings(phba); 9949 } 9950 9951 /** 9952 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 9953 * @pdev: pointer to PCI device. 9954 * @state: the current PCI connection state. 9955 * 9956 * This routine is called from the PCI subsystem for I/O error handling to 9957 * device with SLI-3 interface spec. This function is called by the PCI 9958 * subsystem after a PCI bus error affecting this device has been detected. 9959 * When this function is invoked, it will need to stop all the I/Os and 9960 * interrupt(s) to the device. Once that is done, it will return 9961 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 9962 * as desired. 9963 * 9964 * Return codes 9965 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 9966 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9967 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9968 **/ 9969 static pci_ers_result_t 9970 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 9971 { 9972 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9973 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9974 9975 switch (state) { 9976 case pci_channel_io_normal: 9977 /* Non-fatal error, prepare for recovery */ 9978 lpfc_sli_prep_dev_for_recover(phba); 9979 return PCI_ERS_RESULT_CAN_RECOVER; 9980 case pci_channel_io_frozen: 9981 /* Fatal error, prepare for slot reset */ 9982 lpfc_sli_prep_dev_for_reset(phba); 9983 return PCI_ERS_RESULT_NEED_RESET; 9984 case pci_channel_io_perm_failure: 9985 /* Permanent failure, prepare for device down */ 9986 lpfc_sli_prep_dev_for_perm_failure(phba); 9987 return PCI_ERS_RESULT_DISCONNECT; 9988 default: 9989 /* Unknown state, prepare and request slot reset */ 9990 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9991 "0472 Unknown PCI error state: x%x\n", state); 9992 lpfc_sli_prep_dev_for_reset(phba); 9993 return PCI_ERS_RESULT_NEED_RESET; 9994 } 9995 } 9996 9997 /** 9998 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 9999 * @pdev: pointer to PCI device. 10000 * 10001 * This routine is called from the PCI subsystem for error handling to 10002 * device with SLI-3 interface spec. This is called after PCI bus has been 10003 * reset to restart the PCI card from scratch, as if from a cold-boot. 10004 * During the PCI subsystem error recovery, after driver returns 10005 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 10006 * recovery and then call this routine before calling the .resume method 10007 * to recover the device. This function will initialize the HBA device, 10008 * enable the interrupt, but it will just put the HBA to offline state 10009 * without passing any I/O traffic. 10010 * 10011 * Return codes 10012 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10013 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10014 */ 10015 static pci_ers_result_t 10016 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 10017 { 10018 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10019 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10020 struct lpfc_sli *psli = &phba->sli; 10021 uint32_t intr_mode; 10022 10023 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 10024 if (pci_enable_device_mem(pdev)) { 10025 printk(KERN_ERR "lpfc: Cannot re-enable " 10026 "PCI device after reset.\n"); 10027 return PCI_ERS_RESULT_DISCONNECT; 10028 } 10029 10030 pci_restore_state(pdev); 10031 10032 /* 10033 * As the new kernel behavior of pci_restore_state() API call clears 10034 * device saved_state flag, need to save the restored state again. 10035 */ 10036 pci_save_state(pdev); 10037 10038 if (pdev->is_busmaster) 10039 pci_set_master(pdev); 10040 10041 spin_lock_irq(&phba->hbalock); 10042 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10043 spin_unlock_irq(&phba->hbalock); 10044 10045 /* Configure and enable interrupt */ 10046 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10047 if (intr_mode == LPFC_INTR_ERROR) { 10048 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10049 "0427 Cannot re-enable interrupt after " 10050 "slot reset.\n"); 10051 return PCI_ERS_RESULT_DISCONNECT; 10052 } else 10053 phba->intr_mode = intr_mode; 10054 10055 /* Take device offline, it will perform cleanup */ 10056 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10057 lpfc_offline(phba); 10058 lpfc_sli_brdrestart(phba); 10059 10060 /* Log the current active interrupt mode */ 10061 lpfc_log_intr_mode(phba, phba->intr_mode); 10062 10063 return PCI_ERS_RESULT_RECOVERED; 10064 } 10065 10066 /** 10067 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 10068 * @pdev: pointer to PCI device 10069 * 10070 * This routine is called from the PCI subsystem for error handling to device 10071 * with SLI-3 interface spec. It is called when kernel error recovery tells 10072 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10073 * error recovery. After this call, traffic can start to flow from this device 10074 * again. 10075 */ 10076 static void 10077 lpfc_io_resume_s3(struct pci_dev *pdev) 10078 { 10079 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10080 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10081 10082 /* Bring device online, it will be no-op for non-fatal error resume */ 10083 lpfc_online(phba); 10084 10085 /* Clean up Advanced Error Reporting (AER) if needed */ 10086 if (phba->hba_flag & HBA_AER_ENABLED) 10087 pci_cleanup_aer_uncorrect_error_status(pdev); 10088 } 10089 10090 /** 10091 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 10092 * @phba: pointer to lpfc hba data structure. 10093 * 10094 * returns the number of ELS/CT IOCBs to reserve 10095 **/ 10096 int 10097 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 10098 { 10099 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 10100 10101 if (phba->sli_rev == LPFC_SLI_REV4) { 10102 if (max_xri <= 100) 10103 return 10; 10104 else if (max_xri <= 256) 10105 return 25; 10106 else if (max_xri <= 512) 10107 return 50; 10108 else if (max_xri <= 1024) 10109 return 100; 10110 else if (max_xri <= 1536) 10111 return 150; 10112 else if (max_xri <= 2048) 10113 return 200; 10114 else 10115 return 250; 10116 } else 10117 return 0; 10118 } 10119 10120 /** 10121 * lpfc_write_firmware - attempt to write a firmware image to the port 10122 * @fw: pointer to firmware image returned from request_firmware. 10123 * @phba: pointer to lpfc hba data structure. 10124 * 10125 **/ 10126 static void 10127 lpfc_write_firmware(const struct firmware *fw, void *context) 10128 { 10129 struct lpfc_hba *phba = (struct lpfc_hba *)context; 10130 char fwrev[FW_REV_STR_SIZE]; 10131 struct lpfc_grp_hdr *image; 10132 struct list_head dma_buffer_list; 10133 int i, rc = 0; 10134 struct lpfc_dmabuf *dmabuf, *next; 10135 uint32_t offset = 0, temp_offset = 0; 10136 10137 /* It can be null in no-wait mode, sanity check */ 10138 if (!fw) { 10139 rc = -ENXIO; 10140 goto out; 10141 } 10142 image = (struct lpfc_grp_hdr *)fw->data; 10143 10144 INIT_LIST_HEAD(&dma_buffer_list); 10145 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) || 10146 (bf_get_be32(lpfc_grp_hdr_file_type, image) != 10147 LPFC_FILE_TYPE_GROUP) || 10148 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) || 10149 (be32_to_cpu(image->size) != fw->size)) { 10150 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10151 "3022 Invalid FW image found. " 10152 "Magic:%x Type:%x ID:%x\n", 10153 be32_to_cpu(image->magic_number), 10154 bf_get_be32(lpfc_grp_hdr_file_type, image), 10155 bf_get_be32(lpfc_grp_hdr_id, image)); 10156 rc = -EINVAL; 10157 goto release_out; 10158 } 10159 lpfc_decode_firmware_rev(phba, fwrev, 1); 10160 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 10161 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10162 "3023 Updating Firmware, Current Version:%s " 10163 "New Version:%s\n", 10164 fwrev, image->revision); 10165 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 10166 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 10167 GFP_KERNEL); 10168 if (!dmabuf) { 10169 rc = -ENOMEM; 10170 goto release_out; 10171 } 10172 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 10173 SLI4_PAGE_SIZE, 10174 &dmabuf->phys, 10175 GFP_KERNEL); 10176 if (!dmabuf->virt) { 10177 kfree(dmabuf); 10178 rc = -ENOMEM; 10179 goto release_out; 10180 } 10181 list_add_tail(&dmabuf->list, &dma_buffer_list); 10182 } 10183 while (offset < fw->size) { 10184 temp_offset = offset; 10185 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 10186 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 10187 memcpy(dmabuf->virt, 10188 fw->data + temp_offset, 10189 fw->size - temp_offset); 10190 temp_offset = fw->size; 10191 break; 10192 } 10193 memcpy(dmabuf->virt, fw->data + temp_offset, 10194 SLI4_PAGE_SIZE); 10195 temp_offset += SLI4_PAGE_SIZE; 10196 } 10197 rc = lpfc_wr_object(phba, &dma_buffer_list, 10198 (fw->size - offset), &offset); 10199 if (rc) 10200 goto release_out; 10201 } 10202 rc = offset; 10203 } 10204 10205 release_out: 10206 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 10207 list_del(&dmabuf->list); 10208 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 10209 dmabuf->virt, dmabuf->phys); 10210 kfree(dmabuf); 10211 } 10212 release_firmware(fw); 10213 out: 10214 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10215 "3024 Firmware update done: %d.\n", rc); 10216 return; 10217 } 10218 10219 /** 10220 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 10221 * @phba: pointer to lpfc hba data structure. 10222 * 10223 * This routine is called to perform Linux generic firmware upgrade on device 10224 * that supports such feature. 10225 **/ 10226 int 10227 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 10228 { 10229 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 10230 int ret; 10231 const struct firmware *fw; 10232 10233 /* Only supported on SLI4 interface type 2 for now */ 10234 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 10235 LPFC_SLI_INTF_IF_TYPE_2) 10236 return -EPERM; 10237 10238 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 10239 10240 if (fw_upgrade == INT_FW_UPGRADE) { 10241 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 10242 file_name, &phba->pcidev->dev, 10243 GFP_KERNEL, (void *)phba, 10244 lpfc_write_firmware); 10245 } else if (fw_upgrade == RUN_FW_UPGRADE) { 10246 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 10247 if (!ret) 10248 lpfc_write_firmware(fw, (void *)phba); 10249 } else { 10250 ret = -EINVAL; 10251 } 10252 10253 return ret; 10254 } 10255 10256 /** 10257 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 10258 * @pdev: pointer to PCI device 10259 * @pid: pointer to PCI device identifier 10260 * 10261 * This routine is called from the kernel's PCI subsystem to device with 10262 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 10263 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 10264 * information of the device and driver to see if the driver state that it 10265 * can support this kind of device. If the match is successful, the driver 10266 * core invokes this routine. If this routine determines it can claim the HBA, 10267 * it does all the initialization that it needs to do to handle the HBA 10268 * properly. 10269 * 10270 * Return code 10271 * 0 - driver can claim the device 10272 * negative value - driver can not claim the device 10273 **/ 10274 static int 10275 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 10276 { 10277 struct lpfc_hba *phba; 10278 struct lpfc_vport *vport = NULL; 10279 struct Scsi_Host *shost = NULL; 10280 int error, ret; 10281 uint32_t cfg_mode, intr_mode; 10282 int adjusted_fcp_io_channel; 10283 10284 /* Allocate memory for HBA structure */ 10285 phba = lpfc_hba_alloc(pdev); 10286 if (!phba) 10287 return -ENOMEM; 10288 10289 /* Perform generic PCI device enabling operation */ 10290 error = lpfc_enable_pci_dev(phba); 10291 if (error) 10292 goto out_free_phba; 10293 10294 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 10295 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 10296 if (error) 10297 goto out_disable_pci_dev; 10298 10299 /* Set up SLI-4 specific device PCI memory space */ 10300 error = lpfc_sli4_pci_mem_setup(phba); 10301 if (error) { 10302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10303 "1410 Failed to set up pci memory space.\n"); 10304 goto out_disable_pci_dev; 10305 } 10306 10307 /* Set up phase-1 common device driver resources */ 10308 error = lpfc_setup_driver_resource_phase1(phba); 10309 if (error) { 10310 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10311 "1411 Failed to set up driver resource.\n"); 10312 goto out_unset_pci_mem_s4; 10313 } 10314 10315 /* Set up SLI-4 Specific device driver resources */ 10316 error = lpfc_sli4_driver_resource_setup(phba); 10317 if (error) { 10318 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10319 "1412 Failed to set up driver resource.\n"); 10320 goto out_unset_pci_mem_s4; 10321 } 10322 10323 /* Initialize and populate the iocb list per host */ 10324 10325 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10326 "2821 initialize iocb list %d.\n", 10327 phba->cfg_iocb_cnt*1024); 10328 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 10329 10330 if (error) { 10331 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10332 "1413 Failed to initialize iocb list.\n"); 10333 goto out_unset_driver_resource_s4; 10334 } 10335 10336 INIT_LIST_HEAD(&phba->active_rrq_list); 10337 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 10338 10339 /* Set up common device driver resources */ 10340 error = lpfc_setup_driver_resource_phase2(phba); 10341 if (error) { 10342 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10343 "1414 Failed to set up driver resource.\n"); 10344 goto out_free_iocb_list; 10345 } 10346 10347 /* Get the default values for Model Name and Description */ 10348 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 10349 10350 /* Create SCSI host to the physical port */ 10351 error = lpfc_create_shost(phba); 10352 if (error) { 10353 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10354 "1415 Failed to create scsi host.\n"); 10355 goto out_unset_driver_resource; 10356 } 10357 10358 /* Configure sysfs attributes */ 10359 vport = phba->pport; 10360 error = lpfc_alloc_sysfs_attr(vport); 10361 if (error) { 10362 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10363 "1416 Failed to allocate sysfs attr\n"); 10364 goto out_destroy_shost; 10365 } 10366 10367 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 10368 /* Now, trying to enable interrupt and bring up the device */ 10369 cfg_mode = phba->cfg_use_msi; 10370 10371 /* Put device to a known state before enabling interrupt */ 10372 lpfc_stop_port(phba); 10373 /* Configure and enable interrupt */ 10374 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 10375 if (intr_mode == LPFC_INTR_ERROR) { 10376 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10377 "0426 Failed to enable interrupt.\n"); 10378 error = -ENODEV; 10379 goto out_free_sysfs_attr; 10380 } 10381 /* Default to single EQ for non-MSI-X */ 10382 if (phba->intr_type != MSIX) 10383 adjusted_fcp_io_channel = 1; 10384 else 10385 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel; 10386 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel; 10387 /* Set up SLI-4 HBA */ 10388 if (lpfc_sli4_hba_setup(phba)) { 10389 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10390 "1421 Failed to set up hba\n"); 10391 error = -ENODEV; 10392 goto out_disable_intr; 10393 } 10394 10395 /* Log the current active interrupt mode */ 10396 phba->intr_mode = intr_mode; 10397 lpfc_log_intr_mode(phba, intr_mode); 10398 10399 /* Perform post initialization setup */ 10400 lpfc_post_init_setup(phba); 10401 10402 /* check for firmware upgrade or downgrade */ 10403 if (phba->cfg_request_firmware_upgrade) 10404 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 10405 10406 /* Check if there are static vports to be created. */ 10407 lpfc_create_static_vport(phba); 10408 return 0; 10409 10410 out_disable_intr: 10411 lpfc_sli4_disable_intr(phba); 10412 out_free_sysfs_attr: 10413 lpfc_free_sysfs_attr(vport); 10414 out_destroy_shost: 10415 lpfc_destroy_shost(phba); 10416 out_unset_driver_resource: 10417 lpfc_unset_driver_resource_phase2(phba); 10418 out_free_iocb_list: 10419 lpfc_free_iocb_list(phba); 10420 out_unset_driver_resource_s4: 10421 lpfc_sli4_driver_resource_unset(phba); 10422 out_unset_pci_mem_s4: 10423 lpfc_sli4_pci_mem_unset(phba); 10424 out_disable_pci_dev: 10425 lpfc_disable_pci_dev(phba); 10426 if (shost) 10427 scsi_host_put(shost); 10428 out_free_phba: 10429 lpfc_hba_free(phba); 10430 return error; 10431 } 10432 10433 /** 10434 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 10435 * @pdev: pointer to PCI device 10436 * 10437 * This routine is called from the kernel's PCI subsystem to device with 10438 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 10439 * removed from PCI bus, it performs all the necessary cleanup for the HBA 10440 * device to be removed from the PCI subsystem properly. 10441 **/ 10442 static void 10443 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 10444 { 10445 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10446 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 10447 struct lpfc_vport **vports; 10448 struct lpfc_hba *phba = vport->phba; 10449 int i; 10450 10451 /* Mark the device unloading flag */ 10452 spin_lock_irq(&phba->hbalock); 10453 vport->load_flag |= FC_UNLOADING; 10454 spin_unlock_irq(&phba->hbalock); 10455 10456 /* Free the HBA sysfs attributes */ 10457 lpfc_free_sysfs_attr(vport); 10458 10459 /* Release all the vports against this physical port */ 10460 vports = lpfc_create_vport_work_array(phba); 10461 if (vports != NULL) 10462 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 10463 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 10464 continue; 10465 fc_vport_terminate(vports[i]->fc_vport); 10466 } 10467 lpfc_destroy_vport_work_array(phba, vports); 10468 10469 /* Remove FC host and then SCSI host with the physical port */ 10470 fc_remove_host(shost); 10471 scsi_remove_host(shost); 10472 10473 /* Perform cleanup on the physical port */ 10474 lpfc_cleanup(vport); 10475 10476 /* 10477 * Bring down the SLI Layer. This step disables all interrupts, 10478 * clears the rings, discards all mailbox commands, and resets 10479 * the HBA FCoE function. 10480 */ 10481 lpfc_debugfs_terminate(vport); 10482 lpfc_sli4_hba_unset(phba); 10483 10484 spin_lock_irq(&phba->hbalock); 10485 list_del_init(&vport->listentry); 10486 spin_unlock_irq(&phba->hbalock); 10487 10488 /* Perform scsi free before driver resource_unset since scsi 10489 * buffers are released to their corresponding pools here. 10490 */ 10491 lpfc_scsi_free(phba); 10492 10493 lpfc_sli4_driver_resource_unset(phba); 10494 10495 /* Unmap adapter Control and Doorbell registers */ 10496 lpfc_sli4_pci_mem_unset(phba); 10497 10498 /* Release PCI resources and disable device's PCI function */ 10499 scsi_host_put(shost); 10500 lpfc_disable_pci_dev(phba); 10501 10502 /* Finally, free the driver's device data structure */ 10503 lpfc_hba_free(phba); 10504 10505 return; 10506 } 10507 10508 /** 10509 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 10510 * @pdev: pointer to PCI device 10511 * @msg: power management message 10512 * 10513 * This routine is called from the kernel's PCI subsystem to support system 10514 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 10515 * this method, it quiesces the device by stopping the driver's worker 10516 * thread for the device, turning off device's interrupt and DMA, and bring 10517 * the device offline. Note that as the driver implements the minimum PM 10518 * requirements to a power-aware driver's PM support for suspend/resume -- all 10519 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 10520 * method call will be treated as SUSPEND and the driver will fully 10521 * reinitialize its device during resume() method call, the driver will set 10522 * device to PCI_D3hot state in PCI config space instead of setting it 10523 * according to the @msg provided by the PM. 10524 * 10525 * Return code 10526 * 0 - driver suspended the device 10527 * Error otherwise 10528 **/ 10529 static int 10530 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 10531 { 10532 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10533 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10534 10535 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10536 "2843 PCI device Power Management suspend.\n"); 10537 10538 /* Bring down the device */ 10539 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10540 lpfc_offline(phba); 10541 kthread_stop(phba->worker_thread); 10542 10543 /* Disable interrupt from device */ 10544 lpfc_sli4_disable_intr(phba); 10545 lpfc_sli4_queue_destroy(phba); 10546 10547 /* Save device state to PCI config space */ 10548 pci_save_state(pdev); 10549 pci_set_power_state(pdev, PCI_D3hot); 10550 10551 return 0; 10552 } 10553 10554 /** 10555 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 10556 * @pdev: pointer to PCI device 10557 * 10558 * This routine is called from the kernel's PCI subsystem to support system 10559 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 10560 * this method, it restores the device's PCI config space state and fully 10561 * reinitializes the device and brings it online. Note that as the driver 10562 * implements the minimum PM requirements to a power-aware driver's PM for 10563 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 10564 * to the suspend() method call will be treated as SUSPEND and the driver 10565 * will fully reinitialize its device during resume() method call, the device 10566 * will be set to PCI_D0 directly in PCI config space before restoring the 10567 * state. 10568 * 10569 * Return code 10570 * 0 - driver suspended the device 10571 * Error otherwise 10572 **/ 10573 static int 10574 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 10575 { 10576 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10577 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10578 uint32_t intr_mode; 10579 int error; 10580 10581 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10582 "0292 PCI device Power Management resume.\n"); 10583 10584 /* Restore device state from PCI config space */ 10585 pci_set_power_state(pdev, PCI_D0); 10586 pci_restore_state(pdev); 10587 10588 /* 10589 * As the new kernel behavior of pci_restore_state() API call clears 10590 * device saved_state flag, need to save the restored state again. 10591 */ 10592 pci_save_state(pdev); 10593 10594 if (pdev->is_busmaster) 10595 pci_set_master(pdev); 10596 10597 /* Startup the kernel thread for this host adapter. */ 10598 phba->worker_thread = kthread_run(lpfc_do_work, phba, 10599 "lpfc_worker_%d", phba->brd_no); 10600 if (IS_ERR(phba->worker_thread)) { 10601 error = PTR_ERR(phba->worker_thread); 10602 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10603 "0293 PM resume failed to start worker " 10604 "thread: error=x%x.\n", error); 10605 return error; 10606 } 10607 10608 /* Configure and enable interrupt */ 10609 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 10610 if (intr_mode == LPFC_INTR_ERROR) { 10611 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10612 "0294 PM resume Failed to enable interrupt\n"); 10613 return -EIO; 10614 } else 10615 phba->intr_mode = intr_mode; 10616 10617 /* Restart HBA and bring it online */ 10618 lpfc_sli_brdrestart(phba); 10619 lpfc_online(phba); 10620 10621 /* Log the current active interrupt mode */ 10622 lpfc_log_intr_mode(phba, phba->intr_mode); 10623 10624 return 0; 10625 } 10626 10627 /** 10628 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 10629 * @phba: pointer to lpfc hba data structure. 10630 * 10631 * This routine is called to prepare the SLI4 device for PCI slot recover. It 10632 * aborts all the outstanding SCSI I/Os to the pci device. 10633 **/ 10634 static void 10635 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 10636 { 10637 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10638 "2828 PCI channel I/O abort preparing for recovery\n"); 10639 /* 10640 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 10641 * and let the SCSI mid-layer to retry them to recover. 10642 */ 10643 lpfc_sli_abort_fcp_rings(phba); 10644 } 10645 10646 /** 10647 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 10648 * @phba: pointer to lpfc hba data structure. 10649 * 10650 * This routine is called to prepare the SLI4 device for PCI slot reset. It 10651 * disables the device interrupt and pci device, and aborts the internal FCP 10652 * pending I/Os. 10653 **/ 10654 static void 10655 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 10656 { 10657 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10658 "2826 PCI channel disable preparing for reset\n"); 10659 10660 /* Block any management I/Os to the device */ 10661 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 10662 10663 /* Block all SCSI devices' I/Os on the host */ 10664 lpfc_scsi_dev_block(phba); 10665 10666 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 10667 lpfc_sli_flush_fcp_rings(phba); 10668 10669 /* stop all timers */ 10670 lpfc_stop_hba_timers(phba); 10671 10672 /* Disable interrupt and pci device */ 10673 lpfc_sli4_disable_intr(phba); 10674 lpfc_sli4_queue_destroy(phba); 10675 pci_disable_device(phba->pcidev); 10676 } 10677 10678 /** 10679 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 10680 * @phba: pointer to lpfc hba data structure. 10681 * 10682 * This routine is called to prepare the SLI4 device for PCI slot permanently 10683 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 10684 * pending I/Os. 10685 **/ 10686 static void 10687 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 10688 { 10689 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10690 "2827 PCI channel permanent disable for failure\n"); 10691 10692 /* Block all SCSI devices' I/Os on the host */ 10693 lpfc_scsi_dev_block(phba); 10694 10695 /* stop all timers */ 10696 lpfc_stop_hba_timers(phba); 10697 10698 /* Clean up all driver's outstanding SCSI I/Os */ 10699 lpfc_sli_flush_fcp_rings(phba); 10700 } 10701 10702 /** 10703 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 10704 * @pdev: pointer to PCI device. 10705 * @state: the current PCI connection state. 10706 * 10707 * This routine is called from the PCI subsystem for error handling to device 10708 * with SLI-4 interface spec. This function is called by the PCI subsystem 10709 * after a PCI bus error affecting this device has been detected. When this 10710 * function is invoked, it will need to stop all the I/Os and interrupt(s) 10711 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 10712 * for the PCI subsystem to perform proper recovery as desired. 10713 * 10714 * Return codes 10715 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10716 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10717 **/ 10718 static pci_ers_result_t 10719 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 10720 { 10721 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10722 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10723 10724 switch (state) { 10725 case pci_channel_io_normal: 10726 /* Non-fatal error, prepare for recovery */ 10727 lpfc_sli4_prep_dev_for_recover(phba); 10728 return PCI_ERS_RESULT_CAN_RECOVER; 10729 case pci_channel_io_frozen: 10730 /* Fatal error, prepare for slot reset */ 10731 lpfc_sli4_prep_dev_for_reset(phba); 10732 return PCI_ERS_RESULT_NEED_RESET; 10733 case pci_channel_io_perm_failure: 10734 /* Permanent failure, prepare for device down */ 10735 lpfc_sli4_prep_dev_for_perm_failure(phba); 10736 return PCI_ERS_RESULT_DISCONNECT; 10737 default: 10738 /* Unknown state, prepare and request slot reset */ 10739 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10740 "2825 Unknown PCI error state: x%x\n", state); 10741 lpfc_sli4_prep_dev_for_reset(phba); 10742 return PCI_ERS_RESULT_NEED_RESET; 10743 } 10744 } 10745 10746 /** 10747 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 10748 * @pdev: pointer to PCI device. 10749 * 10750 * This routine is called from the PCI subsystem for error handling to device 10751 * with SLI-4 interface spec. It is called after PCI bus has been reset to 10752 * restart the PCI card from scratch, as if from a cold-boot. During the 10753 * PCI subsystem error recovery, after the driver returns 10754 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 10755 * recovery and then call this routine before calling the .resume method to 10756 * recover the device. This function will initialize the HBA device, enable 10757 * the interrupt, but it will just put the HBA to offline state without 10758 * passing any I/O traffic. 10759 * 10760 * Return codes 10761 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10762 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10763 */ 10764 static pci_ers_result_t 10765 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 10766 { 10767 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10768 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10769 struct lpfc_sli *psli = &phba->sli; 10770 uint32_t intr_mode; 10771 10772 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 10773 if (pci_enable_device_mem(pdev)) { 10774 printk(KERN_ERR "lpfc: Cannot re-enable " 10775 "PCI device after reset.\n"); 10776 return PCI_ERS_RESULT_DISCONNECT; 10777 } 10778 10779 pci_restore_state(pdev); 10780 10781 /* 10782 * As the new kernel behavior of pci_restore_state() API call clears 10783 * device saved_state flag, need to save the restored state again. 10784 */ 10785 pci_save_state(pdev); 10786 10787 if (pdev->is_busmaster) 10788 pci_set_master(pdev); 10789 10790 spin_lock_irq(&phba->hbalock); 10791 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10792 spin_unlock_irq(&phba->hbalock); 10793 10794 /* Configure and enable interrupt */ 10795 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 10796 if (intr_mode == LPFC_INTR_ERROR) { 10797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10798 "2824 Cannot re-enable interrupt after " 10799 "slot reset.\n"); 10800 return PCI_ERS_RESULT_DISCONNECT; 10801 } else 10802 phba->intr_mode = intr_mode; 10803 10804 /* Log the current active interrupt mode */ 10805 lpfc_log_intr_mode(phba, phba->intr_mode); 10806 10807 return PCI_ERS_RESULT_RECOVERED; 10808 } 10809 10810 /** 10811 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 10812 * @pdev: pointer to PCI device 10813 * 10814 * This routine is called from the PCI subsystem for error handling to device 10815 * with SLI-4 interface spec. It is called when kernel error recovery tells 10816 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10817 * error recovery. After this call, traffic can start to flow from this device 10818 * again. 10819 **/ 10820 static void 10821 lpfc_io_resume_s4(struct pci_dev *pdev) 10822 { 10823 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10824 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10825 10826 /* 10827 * In case of slot reset, as function reset is performed through 10828 * mailbox command which needs DMA to be enabled, this operation 10829 * has to be moved to the io resume phase. Taking device offline 10830 * will perform the necessary cleanup. 10831 */ 10832 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 10833 /* Perform device reset */ 10834 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10835 lpfc_offline(phba); 10836 lpfc_sli_brdrestart(phba); 10837 /* Bring the device back online */ 10838 lpfc_online(phba); 10839 } 10840 10841 /* Clean up Advanced Error Reporting (AER) if needed */ 10842 if (phba->hba_flag & HBA_AER_ENABLED) 10843 pci_cleanup_aer_uncorrect_error_status(pdev); 10844 } 10845 10846 /** 10847 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 10848 * @pdev: pointer to PCI device 10849 * @pid: pointer to PCI device identifier 10850 * 10851 * This routine is to be registered to the kernel's PCI subsystem. When an 10852 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 10853 * at PCI device-specific information of the device and driver to see if the 10854 * driver state that it can support this kind of device. If the match is 10855 * successful, the driver core invokes this routine. This routine dispatches 10856 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 10857 * do all the initialization that it needs to do to handle the HBA device 10858 * properly. 10859 * 10860 * Return code 10861 * 0 - driver can claim the device 10862 * negative value - driver can not claim the device 10863 **/ 10864 static int 10865 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 10866 { 10867 int rc; 10868 struct lpfc_sli_intf intf; 10869 10870 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 10871 return -ENODEV; 10872 10873 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 10874 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 10875 rc = lpfc_pci_probe_one_s4(pdev, pid); 10876 else 10877 rc = lpfc_pci_probe_one_s3(pdev, pid); 10878 10879 return rc; 10880 } 10881 10882 /** 10883 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 10884 * @pdev: pointer to PCI device 10885 * 10886 * This routine is to be registered to the kernel's PCI subsystem. When an 10887 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 10888 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 10889 * remove routine, which will perform all the necessary cleanup for the 10890 * device to be removed from the PCI subsystem properly. 10891 **/ 10892 static void 10893 lpfc_pci_remove_one(struct pci_dev *pdev) 10894 { 10895 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10896 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10897 10898 switch (phba->pci_dev_grp) { 10899 case LPFC_PCI_DEV_LP: 10900 lpfc_pci_remove_one_s3(pdev); 10901 break; 10902 case LPFC_PCI_DEV_OC: 10903 lpfc_pci_remove_one_s4(pdev); 10904 break; 10905 default: 10906 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10907 "1424 Invalid PCI device group: 0x%x\n", 10908 phba->pci_dev_grp); 10909 break; 10910 } 10911 return; 10912 } 10913 10914 /** 10915 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 10916 * @pdev: pointer to PCI device 10917 * @msg: power management message 10918 * 10919 * This routine is to be registered to the kernel's PCI subsystem to support 10920 * system Power Management (PM). When PM invokes this method, it dispatches 10921 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 10922 * suspend the device. 10923 * 10924 * Return code 10925 * 0 - driver suspended the device 10926 * Error otherwise 10927 **/ 10928 static int 10929 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 10930 { 10931 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10932 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10933 int rc = -ENODEV; 10934 10935 switch (phba->pci_dev_grp) { 10936 case LPFC_PCI_DEV_LP: 10937 rc = lpfc_pci_suspend_one_s3(pdev, msg); 10938 break; 10939 case LPFC_PCI_DEV_OC: 10940 rc = lpfc_pci_suspend_one_s4(pdev, msg); 10941 break; 10942 default: 10943 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10944 "1425 Invalid PCI device group: 0x%x\n", 10945 phba->pci_dev_grp); 10946 break; 10947 } 10948 return rc; 10949 } 10950 10951 /** 10952 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 10953 * @pdev: pointer to PCI device 10954 * 10955 * This routine is to be registered to the kernel's PCI subsystem to support 10956 * system Power Management (PM). When PM invokes this method, it dispatches 10957 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 10958 * resume the device. 10959 * 10960 * Return code 10961 * 0 - driver suspended the device 10962 * Error otherwise 10963 **/ 10964 static int 10965 lpfc_pci_resume_one(struct pci_dev *pdev) 10966 { 10967 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10968 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10969 int rc = -ENODEV; 10970 10971 switch (phba->pci_dev_grp) { 10972 case LPFC_PCI_DEV_LP: 10973 rc = lpfc_pci_resume_one_s3(pdev); 10974 break; 10975 case LPFC_PCI_DEV_OC: 10976 rc = lpfc_pci_resume_one_s4(pdev); 10977 break; 10978 default: 10979 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10980 "1426 Invalid PCI device group: 0x%x\n", 10981 phba->pci_dev_grp); 10982 break; 10983 } 10984 return rc; 10985 } 10986 10987 /** 10988 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 10989 * @pdev: pointer to PCI device. 10990 * @state: the current PCI connection state. 10991 * 10992 * This routine is registered to the PCI subsystem for error handling. This 10993 * function is called by the PCI subsystem after a PCI bus error affecting 10994 * this device has been detected. When this routine is invoked, it dispatches 10995 * the action to the proper SLI-3 or SLI-4 device error detected handling 10996 * routine, which will perform the proper error detected operation. 10997 * 10998 * Return codes 10999 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11000 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11001 **/ 11002 static pci_ers_result_t 11003 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 11004 { 11005 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11006 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11007 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11008 11009 switch (phba->pci_dev_grp) { 11010 case LPFC_PCI_DEV_LP: 11011 rc = lpfc_io_error_detected_s3(pdev, state); 11012 break; 11013 case LPFC_PCI_DEV_OC: 11014 rc = lpfc_io_error_detected_s4(pdev, state); 11015 break; 11016 default: 11017 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11018 "1427 Invalid PCI device group: 0x%x\n", 11019 phba->pci_dev_grp); 11020 break; 11021 } 11022 return rc; 11023 } 11024 11025 /** 11026 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 11027 * @pdev: pointer to PCI device. 11028 * 11029 * This routine is registered to the PCI subsystem for error handling. This 11030 * function is called after PCI bus has been reset to restart the PCI card 11031 * from scratch, as if from a cold-boot. When this routine is invoked, it 11032 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 11033 * routine, which will perform the proper device reset. 11034 * 11035 * Return codes 11036 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11037 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11038 **/ 11039 static pci_ers_result_t 11040 lpfc_io_slot_reset(struct pci_dev *pdev) 11041 { 11042 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11043 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11044 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11045 11046 switch (phba->pci_dev_grp) { 11047 case LPFC_PCI_DEV_LP: 11048 rc = lpfc_io_slot_reset_s3(pdev); 11049 break; 11050 case LPFC_PCI_DEV_OC: 11051 rc = lpfc_io_slot_reset_s4(pdev); 11052 break; 11053 default: 11054 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11055 "1428 Invalid PCI device group: 0x%x\n", 11056 phba->pci_dev_grp); 11057 break; 11058 } 11059 return rc; 11060 } 11061 11062 /** 11063 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 11064 * @pdev: pointer to PCI device 11065 * 11066 * This routine is registered to the PCI subsystem for error handling. It 11067 * is called when kernel error recovery tells the lpfc driver that it is 11068 * OK to resume normal PCI operation after PCI bus error recovery. When 11069 * this routine is invoked, it dispatches the action to the proper SLI-3 11070 * or SLI-4 device io_resume routine, which will resume the device operation. 11071 **/ 11072 static void 11073 lpfc_io_resume(struct pci_dev *pdev) 11074 { 11075 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11076 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11077 11078 switch (phba->pci_dev_grp) { 11079 case LPFC_PCI_DEV_LP: 11080 lpfc_io_resume_s3(pdev); 11081 break; 11082 case LPFC_PCI_DEV_OC: 11083 lpfc_io_resume_s4(pdev); 11084 break; 11085 default: 11086 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11087 "1429 Invalid PCI device group: 0x%x\n", 11088 phba->pci_dev_grp); 11089 break; 11090 } 11091 return; 11092 } 11093 11094 /** 11095 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter 11096 * @phba: pointer to lpfc hba data structure. 11097 * 11098 * This routine checks to see if OAS is supported for this adapter. If 11099 * supported, the configure Flash Optimized Fabric flag is set. Otherwise, 11100 * the enable oas flag is cleared and the pool created for OAS device data 11101 * is destroyed. 11102 * 11103 **/ 11104 void 11105 lpfc_sli4_oas_verify(struct lpfc_hba *phba) 11106 { 11107 11108 if (!phba->cfg_EnableXLane) 11109 return; 11110 11111 if (phba->sli4_hba.pc_sli4_params.oas_supported) { 11112 phba->cfg_fof = 1; 11113 } else { 11114 phba->cfg_fof = 0; 11115 if (phba->device_data_mem_pool) 11116 mempool_destroy(phba->device_data_mem_pool); 11117 phba->device_data_mem_pool = NULL; 11118 } 11119 11120 return; 11121 } 11122 11123 /** 11124 * lpfc_fof_queue_setup - Set up all the fof queues 11125 * @phba: pointer to lpfc hba data structure. 11126 * 11127 * This routine is invoked to set up all the fof queues for the FC HBA 11128 * operation. 11129 * 11130 * Return codes 11131 * 0 - successful 11132 * -ENOMEM - No available memory 11133 **/ 11134 int 11135 lpfc_fof_queue_setup(struct lpfc_hba *phba) 11136 { 11137 struct lpfc_sli *psli = &phba->sli; 11138 int rc; 11139 11140 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX); 11141 if (rc) 11142 return -ENOMEM; 11143 11144 if (phba->cfg_fof) { 11145 11146 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq, 11147 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP); 11148 if (rc) 11149 goto out_oas_cq; 11150 11151 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq, 11152 phba->sli4_hba.oas_cq, LPFC_FCP); 11153 if (rc) 11154 goto out_oas_wq; 11155 11156 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING]; 11157 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING]; 11158 } 11159 11160 return 0; 11161 11162 out_oas_wq: 11163 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq); 11164 out_oas_cq: 11165 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq); 11166 return rc; 11167 11168 } 11169 11170 /** 11171 * lpfc_fof_queue_create - Create all the fof queues 11172 * @phba: pointer to lpfc hba data structure. 11173 * 11174 * This routine is invoked to allocate all the fof queues for the FC HBA 11175 * operation. For each SLI4 queue type, the parameters such as queue entry 11176 * count (queue depth) shall be taken from the module parameter. For now, 11177 * we just use some constant number as place holder. 11178 * 11179 * Return codes 11180 * 0 - successful 11181 * -ENOMEM - No availble memory 11182 * -EIO - The mailbox failed to complete successfully. 11183 **/ 11184 int 11185 lpfc_fof_queue_create(struct lpfc_hba *phba) 11186 { 11187 struct lpfc_queue *qdesc; 11188 11189 /* Create FOF EQ */ 11190 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 11191 phba->sli4_hba.eq_ecount); 11192 if (!qdesc) 11193 goto out_error; 11194 11195 phba->sli4_hba.fof_eq = qdesc; 11196 11197 if (phba->cfg_fof) { 11198 11199 /* Create OAS CQ */ 11200 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 11201 phba->sli4_hba.cq_ecount); 11202 if (!qdesc) 11203 goto out_error; 11204 11205 phba->sli4_hba.oas_cq = qdesc; 11206 11207 /* Create OAS WQ */ 11208 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 11209 phba->sli4_hba.wq_ecount); 11210 if (!qdesc) 11211 goto out_error; 11212 11213 phba->sli4_hba.oas_wq = qdesc; 11214 11215 } 11216 return 0; 11217 11218 out_error: 11219 lpfc_fof_queue_destroy(phba); 11220 return -ENOMEM; 11221 } 11222 11223 /** 11224 * lpfc_fof_queue_destroy - Destroy all the fof queues 11225 * @phba: pointer to lpfc hba data structure. 11226 * 11227 * This routine is invoked to release all the SLI4 queues with the FC HBA 11228 * operation. 11229 * 11230 * Return codes 11231 * 0 - successful 11232 **/ 11233 int 11234 lpfc_fof_queue_destroy(struct lpfc_hba *phba) 11235 { 11236 /* Release FOF Event queue */ 11237 if (phba->sli4_hba.fof_eq != NULL) { 11238 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq); 11239 phba->sli4_hba.fof_eq = NULL; 11240 } 11241 11242 /* Release OAS Completion queue */ 11243 if (phba->sli4_hba.oas_cq != NULL) { 11244 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq); 11245 phba->sli4_hba.oas_cq = NULL; 11246 } 11247 11248 /* Release OAS Work queue */ 11249 if (phba->sli4_hba.oas_wq != NULL) { 11250 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq); 11251 phba->sli4_hba.oas_wq = NULL; 11252 } 11253 return 0; 11254 } 11255 11256 static struct pci_device_id lpfc_id_table[] = { 11257 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 11258 PCI_ANY_ID, PCI_ANY_ID, }, 11259 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 11260 PCI_ANY_ID, PCI_ANY_ID, }, 11261 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 11262 PCI_ANY_ID, PCI_ANY_ID, }, 11263 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 11264 PCI_ANY_ID, PCI_ANY_ID, }, 11265 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 11266 PCI_ANY_ID, PCI_ANY_ID, }, 11267 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 11268 PCI_ANY_ID, PCI_ANY_ID, }, 11269 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 11270 PCI_ANY_ID, PCI_ANY_ID, }, 11271 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 11272 PCI_ANY_ID, PCI_ANY_ID, }, 11273 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 11274 PCI_ANY_ID, PCI_ANY_ID, }, 11275 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 11276 PCI_ANY_ID, PCI_ANY_ID, }, 11277 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 11278 PCI_ANY_ID, PCI_ANY_ID, }, 11279 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 11280 PCI_ANY_ID, PCI_ANY_ID, }, 11281 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 11282 PCI_ANY_ID, PCI_ANY_ID, }, 11283 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 11284 PCI_ANY_ID, PCI_ANY_ID, }, 11285 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 11286 PCI_ANY_ID, PCI_ANY_ID, }, 11287 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 11288 PCI_ANY_ID, PCI_ANY_ID, }, 11289 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 11290 PCI_ANY_ID, PCI_ANY_ID, }, 11291 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 11292 PCI_ANY_ID, PCI_ANY_ID, }, 11293 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 11294 PCI_ANY_ID, PCI_ANY_ID, }, 11295 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 11296 PCI_ANY_ID, PCI_ANY_ID, }, 11297 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 11298 PCI_ANY_ID, PCI_ANY_ID, }, 11299 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 11300 PCI_ANY_ID, PCI_ANY_ID, }, 11301 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 11302 PCI_ANY_ID, PCI_ANY_ID, }, 11303 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 11304 PCI_ANY_ID, PCI_ANY_ID, }, 11305 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 11306 PCI_ANY_ID, PCI_ANY_ID, }, 11307 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 11308 PCI_ANY_ID, PCI_ANY_ID, }, 11309 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 11310 PCI_ANY_ID, PCI_ANY_ID, }, 11311 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 11312 PCI_ANY_ID, PCI_ANY_ID, }, 11313 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 11314 PCI_ANY_ID, PCI_ANY_ID, }, 11315 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 11316 PCI_ANY_ID, PCI_ANY_ID, }, 11317 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 11318 PCI_ANY_ID, PCI_ANY_ID, }, 11319 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 11320 PCI_ANY_ID, PCI_ANY_ID, }, 11321 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 11322 PCI_ANY_ID, PCI_ANY_ID, }, 11323 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 11324 PCI_ANY_ID, PCI_ANY_ID, }, 11325 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 11326 PCI_ANY_ID, PCI_ANY_ID, }, 11327 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 11328 PCI_ANY_ID, PCI_ANY_ID, }, 11329 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 11330 PCI_ANY_ID, PCI_ANY_ID, }, 11331 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 11332 PCI_ANY_ID, PCI_ANY_ID, }, 11333 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 11334 PCI_ANY_ID, PCI_ANY_ID, }, 11335 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 11336 PCI_ANY_ID, PCI_ANY_ID, }, 11337 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 11338 PCI_ANY_ID, PCI_ANY_ID, }, 11339 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, 11340 PCI_ANY_ID, PCI_ANY_ID, }, 11341 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, 11342 PCI_ANY_ID, PCI_ANY_ID, }, 11343 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF, 11344 PCI_ANY_ID, PCI_ANY_ID, }, 11345 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF, 11346 PCI_ANY_ID, PCI_ANY_ID, }, 11347 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK, 11348 PCI_ANY_ID, PCI_ANY_ID, }, 11349 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF, 11350 PCI_ANY_ID, PCI_ANY_ID, }, 11351 { 0 } 11352 }; 11353 11354 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 11355 11356 static const struct pci_error_handlers lpfc_err_handler = { 11357 .error_detected = lpfc_io_error_detected, 11358 .slot_reset = lpfc_io_slot_reset, 11359 .resume = lpfc_io_resume, 11360 }; 11361 11362 static struct pci_driver lpfc_driver = { 11363 .name = LPFC_DRIVER_NAME, 11364 .id_table = lpfc_id_table, 11365 .probe = lpfc_pci_probe_one, 11366 .remove = lpfc_pci_remove_one, 11367 .suspend = lpfc_pci_suspend_one, 11368 .resume = lpfc_pci_resume_one, 11369 .err_handler = &lpfc_err_handler, 11370 }; 11371 11372 static const struct file_operations lpfc_mgmt_fop = { 11373 .owner = THIS_MODULE, 11374 }; 11375 11376 static struct miscdevice lpfc_mgmt_dev = { 11377 .minor = MISC_DYNAMIC_MINOR, 11378 .name = "lpfcmgmt", 11379 .fops = &lpfc_mgmt_fop, 11380 }; 11381 11382 /** 11383 * lpfc_init - lpfc module initialization routine 11384 * 11385 * This routine is to be invoked when the lpfc module is loaded into the 11386 * kernel. The special kernel macro module_init() is used to indicate the 11387 * role of this routine to the kernel as lpfc module entry point. 11388 * 11389 * Return codes 11390 * 0 - successful 11391 * -ENOMEM - FC attach transport failed 11392 * all others - failed 11393 */ 11394 static int __init 11395 lpfc_init(void) 11396 { 11397 int cpu; 11398 int error = 0; 11399 11400 printk(LPFC_MODULE_DESC "\n"); 11401 printk(LPFC_COPYRIGHT "\n"); 11402 11403 error = misc_register(&lpfc_mgmt_dev); 11404 if (error) 11405 printk(KERN_ERR "Could not register lpfcmgmt device, " 11406 "misc_register returned with status %d", error); 11407 11408 if (lpfc_enable_npiv) { 11409 lpfc_transport_functions.vport_create = lpfc_vport_create; 11410 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 11411 } 11412 lpfc_transport_template = 11413 fc_attach_transport(&lpfc_transport_functions); 11414 if (lpfc_transport_template == NULL) 11415 return -ENOMEM; 11416 if (lpfc_enable_npiv) { 11417 lpfc_vport_transport_template = 11418 fc_attach_transport(&lpfc_vport_transport_functions); 11419 if (lpfc_vport_transport_template == NULL) { 11420 fc_release_transport(lpfc_transport_template); 11421 return -ENOMEM; 11422 } 11423 } 11424 11425 /* Initialize in case vector mapping is needed */ 11426 lpfc_used_cpu = NULL; 11427 lpfc_present_cpu = 0; 11428 for_each_present_cpu(cpu) 11429 lpfc_present_cpu++; 11430 11431 error = pci_register_driver(&lpfc_driver); 11432 if (error) { 11433 fc_release_transport(lpfc_transport_template); 11434 if (lpfc_enable_npiv) 11435 fc_release_transport(lpfc_vport_transport_template); 11436 } 11437 11438 return error; 11439 } 11440 11441 /** 11442 * lpfc_exit - lpfc module removal routine 11443 * 11444 * This routine is invoked when the lpfc module is removed from the kernel. 11445 * The special kernel macro module_exit() is used to indicate the role of 11446 * this routine to the kernel as lpfc module exit point. 11447 */ 11448 static void __exit 11449 lpfc_exit(void) 11450 { 11451 misc_deregister(&lpfc_mgmt_dev); 11452 pci_unregister_driver(&lpfc_driver); 11453 fc_release_transport(lpfc_transport_template); 11454 if (lpfc_enable_npiv) 11455 fc_release_transport(lpfc_vport_transport_template); 11456 if (_dump_buf_data) { 11457 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 11458 "_dump_buf_data at 0x%p\n", 11459 (1L << _dump_buf_data_order), _dump_buf_data); 11460 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 11461 } 11462 11463 if (_dump_buf_dif) { 11464 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 11465 "_dump_buf_dif at 0x%p\n", 11466 (1L << _dump_buf_dif_order), _dump_buf_dif); 11467 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 11468 } 11469 kfree(lpfc_used_cpu); 11470 } 11471 11472 module_init(lpfc_init); 11473 module_exit(lpfc_exit); 11474 MODULE_LICENSE("GPL"); 11475 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 11476 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 11477 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 11478