1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2013 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 84 static struct scsi_transport_template *lpfc_transport_template = NULL; 85 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 86 static DEFINE_IDR(lpfc_hba_index); 87 88 /** 89 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 90 * @phba: pointer to lpfc hba data structure. 91 * 92 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 93 * mailbox command. It retrieves the revision information from the HBA and 94 * collects the Vital Product Data (VPD) about the HBA for preparing the 95 * configuration of the HBA. 96 * 97 * Return codes: 98 * 0 - success. 99 * -ERESTART - requests the SLI layer to reset the HBA and try again. 100 * Any other value - indicates an error. 101 **/ 102 int 103 lpfc_config_port_prep(struct lpfc_hba *phba) 104 { 105 lpfc_vpd_t *vp = &phba->vpd; 106 int i = 0, rc; 107 LPFC_MBOXQ_t *pmb; 108 MAILBOX_t *mb; 109 char *lpfc_vpd_data = NULL; 110 uint16_t offset = 0; 111 static char licensed[56] = 112 "key unlock for use with gnu public licensed code only\0"; 113 static int init_key = 1; 114 115 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 116 if (!pmb) { 117 phba->link_state = LPFC_HBA_ERROR; 118 return -ENOMEM; 119 } 120 121 mb = &pmb->u.mb; 122 phba->link_state = LPFC_INIT_MBX_CMDS; 123 124 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 125 if (init_key) { 126 uint32_t *ptext = (uint32_t *) licensed; 127 128 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 129 *ptext = cpu_to_be32(*ptext); 130 init_key = 0; 131 } 132 133 lpfc_read_nv(phba, pmb); 134 memset((char*)mb->un.varRDnvp.rsvd3, 0, 135 sizeof (mb->un.varRDnvp.rsvd3)); 136 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 137 sizeof (licensed)); 138 139 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 140 141 if (rc != MBX_SUCCESS) { 142 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 143 "0324 Config Port initialization " 144 "error, mbxCmd x%x READ_NVPARM, " 145 "mbxStatus x%x\n", 146 mb->mbxCommand, mb->mbxStatus); 147 mempool_free(pmb, phba->mbox_mem_pool); 148 return -ERESTART; 149 } 150 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 151 sizeof(phba->wwnn)); 152 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 153 sizeof(phba->wwpn)); 154 } 155 156 phba->sli3_options = 0x0; 157 158 /* Setup and issue mailbox READ REV command */ 159 lpfc_read_rev(phba, pmb); 160 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 161 if (rc != MBX_SUCCESS) { 162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 163 "0439 Adapter failed to init, mbxCmd x%x " 164 "READ_REV, mbxStatus x%x\n", 165 mb->mbxCommand, mb->mbxStatus); 166 mempool_free( pmb, phba->mbox_mem_pool); 167 return -ERESTART; 168 } 169 170 171 /* 172 * The value of rr must be 1 since the driver set the cv field to 1. 173 * This setting requires the FW to set all revision fields. 174 */ 175 if (mb->un.varRdRev.rr == 0) { 176 vp->rev.rBit = 0; 177 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 178 "0440 Adapter failed to init, READ_REV has " 179 "missing revision information.\n"); 180 mempool_free(pmb, phba->mbox_mem_pool); 181 return -ERESTART; 182 } 183 184 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 185 mempool_free(pmb, phba->mbox_mem_pool); 186 return -EINVAL; 187 } 188 189 /* Save information as VPD data */ 190 vp->rev.rBit = 1; 191 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 192 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 193 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 194 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 195 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 196 vp->rev.biuRev = mb->un.varRdRev.biuRev; 197 vp->rev.smRev = mb->un.varRdRev.smRev; 198 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 199 vp->rev.endecRev = mb->un.varRdRev.endecRev; 200 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 201 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 202 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 203 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 204 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 205 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 206 207 /* If the sli feature level is less then 9, we must 208 * tear down all RPIs and VPIs on link down if NPIV 209 * is enabled. 210 */ 211 if (vp->rev.feaLevelHigh < 9) 212 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 213 214 if (lpfc_is_LC_HBA(phba->pcidev->device)) 215 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 216 sizeof (phba->RandomData)); 217 218 /* Get adapter VPD information */ 219 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 220 if (!lpfc_vpd_data) 221 goto out_free_mbox; 222 do { 223 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 224 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 225 226 if (rc != MBX_SUCCESS) { 227 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 228 "0441 VPD not present on adapter, " 229 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 230 mb->mbxCommand, mb->mbxStatus); 231 mb->un.varDmp.word_cnt = 0; 232 } 233 /* dump mem may return a zero when finished or we got a 234 * mailbox error, either way we are done. 235 */ 236 if (mb->un.varDmp.word_cnt == 0) 237 break; 238 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 239 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 240 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 241 lpfc_vpd_data + offset, 242 mb->un.varDmp.word_cnt); 243 offset += mb->un.varDmp.word_cnt; 244 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 245 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 246 247 kfree(lpfc_vpd_data); 248 out_free_mbox: 249 mempool_free(pmb, phba->mbox_mem_pool); 250 return 0; 251 } 252 253 /** 254 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 255 * @phba: pointer to lpfc hba data structure. 256 * @pmboxq: pointer to the driver internal queue element for mailbox command. 257 * 258 * This is the completion handler for driver's configuring asynchronous event 259 * mailbox command to the device. If the mailbox command returns successfully, 260 * it will set internal async event support flag to 1; otherwise, it will 261 * set internal async event support flag to 0. 262 **/ 263 static void 264 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 265 { 266 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 267 phba->temp_sensor_support = 1; 268 else 269 phba->temp_sensor_support = 0; 270 mempool_free(pmboxq, phba->mbox_mem_pool); 271 return; 272 } 273 274 /** 275 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 276 * @phba: pointer to lpfc hba data structure. 277 * @pmboxq: pointer to the driver internal queue element for mailbox command. 278 * 279 * This is the completion handler for dump mailbox command for getting 280 * wake up parameters. When this command complete, the response contain 281 * Option rom version of the HBA. This function translate the version number 282 * into a human readable string and store it in OptionROMVersion. 283 **/ 284 static void 285 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 286 { 287 struct prog_id *prg; 288 uint32_t prog_id_word; 289 char dist = ' '; 290 /* character array used for decoding dist type. */ 291 char dist_char[] = "nabx"; 292 293 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 294 mempool_free(pmboxq, phba->mbox_mem_pool); 295 return; 296 } 297 298 prg = (struct prog_id *) &prog_id_word; 299 300 /* word 7 contain option rom version */ 301 prog_id_word = pmboxq->u.mb.un.varWords[7]; 302 303 /* Decode the Option rom version word to a readable string */ 304 if (prg->dist < 4) 305 dist = dist_char[prg->dist]; 306 307 if ((prg->dist == 3) && (prg->num == 0)) 308 sprintf(phba->OptionROMVersion, "%d.%d%d", 309 prg->ver, prg->rev, prg->lev); 310 else 311 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 312 prg->ver, prg->rev, prg->lev, 313 dist, prg->num); 314 mempool_free(pmboxq, phba->mbox_mem_pool); 315 return; 316 } 317 318 /** 319 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 320 * cfg_soft_wwnn, cfg_soft_wwpn 321 * @vport: pointer to lpfc vport data structure. 322 * 323 * 324 * Return codes 325 * None. 326 **/ 327 void 328 lpfc_update_vport_wwn(struct lpfc_vport *vport) 329 { 330 /* If the soft name exists then update it using the service params */ 331 if (vport->phba->cfg_soft_wwnn) 332 u64_to_wwn(vport->phba->cfg_soft_wwnn, 333 vport->fc_sparam.nodeName.u.wwn); 334 if (vport->phba->cfg_soft_wwpn) 335 u64_to_wwn(vport->phba->cfg_soft_wwpn, 336 vport->fc_sparam.portName.u.wwn); 337 338 /* 339 * If the name is empty or there exists a soft name 340 * then copy the service params name, otherwise use the fc name 341 */ 342 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 343 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 344 sizeof(struct lpfc_name)); 345 else 346 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 347 sizeof(struct lpfc_name)); 348 349 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn) 350 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 351 sizeof(struct lpfc_name)); 352 else 353 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 354 sizeof(struct lpfc_name)); 355 } 356 357 /** 358 * lpfc_config_port_post - Perform lpfc initialization after config port 359 * @phba: pointer to lpfc hba data structure. 360 * 361 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 362 * command call. It performs all internal resource and state setups on the 363 * port: post IOCB buffers, enable appropriate host interrupt attentions, 364 * ELS ring timers, etc. 365 * 366 * Return codes 367 * 0 - success. 368 * Any other value - error. 369 **/ 370 int 371 lpfc_config_port_post(struct lpfc_hba *phba) 372 { 373 struct lpfc_vport *vport = phba->pport; 374 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 375 LPFC_MBOXQ_t *pmb; 376 MAILBOX_t *mb; 377 struct lpfc_dmabuf *mp; 378 struct lpfc_sli *psli = &phba->sli; 379 uint32_t status, timeout; 380 int i, j; 381 int rc; 382 383 spin_lock_irq(&phba->hbalock); 384 /* 385 * If the Config port completed correctly the HBA is not 386 * over heated any more. 387 */ 388 if (phba->over_temp_state == HBA_OVER_TEMP) 389 phba->over_temp_state = HBA_NORMAL_TEMP; 390 spin_unlock_irq(&phba->hbalock); 391 392 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 393 if (!pmb) { 394 phba->link_state = LPFC_HBA_ERROR; 395 return -ENOMEM; 396 } 397 mb = &pmb->u.mb; 398 399 /* Get login parameters for NID. */ 400 rc = lpfc_read_sparam(phba, pmb, 0); 401 if (rc) { 402 mempool_free(pmb, phba->mbox_mem_pool); 403 return -ENOMEM; 404 } 405 406 pmb->vport = vport; 407 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 408 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 409 "0448 Adapter failed init, mbxCmd x%x " 410 "READ_SPARM mbxStatus x%x\n", 411 mb->mbxCommand, mb->mbxStatus); 412 phba->link_state = LPFC_HBA_ERROR; 413 mp = (struct lpfc_dmabuf *) pmb->context1; 414 mempool_free(pmb, phba->mbox_mem_pool); 415 lpfc_mbuf_free(phba, mp->virt, mp->phys); 416 kfree(mp); 417 return -EIO; 418 } 419 420 mp = (struct lpfc_dmabuf *) pmb->context1; 421 422 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 423 lpfc_mbuf_free(phba, mp->virt, mp->phys); 424 kfree(mp); 425 pmb->context1 = NULL; 426 lpfc_update_vport_wwn(vport); 427 428 /* Update the fc_host data structures with new wwn. */ 429 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 430 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 431 fc_host_max_npiv_vports(shost) = phba->max_vpi; 432 433 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 434 /* This should be consolidated into parse_vpd ? - mr */ 435 if (phba->SerialNumber[0] == 0) { 436 uint8_t *outptr; 437 438 outptr = &vport->fc_nodename.u.s.IEEE[0]; 439 for (i = 0; i < 12; i++) { 440 status = *outptr++; 441 j = ((status & 0xf0) >> 4); 442 if (j <= 9) 443 phba->SerialNumber[i] = 444 (char)((uint8_t) 0x30 + (uint8_t) j); 445 else 446 phba->SerialNumber[i] = 447 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 448 i++; 449 j = (status & 0xf); 450 if (j <= 9) 451 phba->SerialNumber[i] = 452 (char)((uint8_t) 0x30 + (uint8_t) j); 453 else 454 phba->SerialNumber[i] = 455 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 456 } 457 } 458 459 lpfc_read_config(phba, pmb); 460 pmb->vport = vport; 461 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 462 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 463 "0453 Adapter failed to init, mbxCmd x%x " 464 "READ_CONFIG, mbxStatus x%x\n", 465 mb->mbxCommand, mb->mbxStatus); 466 phba->link_state = LPFC_HBA_ERROR; 467 mempool_free( pmb, phba->mbox_mem_pool); 468 return -EIO; 469 } 470 471 /* Check if the port is disabled */ 472 lpfc_sli_read_link_ste(phba); 473 474 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 475 i = (mb->un.varRdConfig.max_xri + 1); 476 if (phba->cfg_hba_queue_depth > i) { 477 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 478 "3359 HBA queue depth changed from %d to %d\n", 479 phba->cfg_hba_queue_depth, i); 480 phba->cfg_hba_queue_depth = i; 481 } 482 483 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */ 484 i = (mb->un.varRdConfig.max_xri >> 3); 485 if (phba->pport->cfg_lun_queue_depth > i) { 486 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 487 "3360 LUN queue depth changed from %d to %d\n", 488 phba->pport->cfg_lun_queue_depth, i); 489 phba->pport->cfg_lun_queue_depth = i; 490 } 491 492 phba->lmt = mb->un.varRdConfig.lmt; 493 494 /* Get the default values for Model Name and Description */ 495 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 496 497 phba->link_state = LPFC_LINK_DOWN; 498 499 /* Only process IOCBs on ELS ring till hba_state is READY */ 500 if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr) 501 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 502 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr) 503 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 504 if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr) 505 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 506 507 /* Post receive buffers for desired rings */ 508 if (phba->sli_rev != 3) 509 lpfc_post_rcv_buf(phba); 510 511 /* 512 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 513 */ 514 if (phba->intr_type == MSIX) { 515 rc = lpfc_config_msi(phba, pmb); 516 if (rc) { 517 mempool_free(pmb, phba->mbox_mem_pool); 518 return -EIO; 519 } 520 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 521 if (rc != MBX_SUCCESS) { 522 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 523 "0352 Config MSI mailbox command " 524 "failed, mbxCmd x%x, mbxStatus x%x\n", 525 pmb->u.mb.mbxCommand, 526 pmb->u.mb.mbxStatus); 527 mempool_free(pmb, phba->mbox_mem_pool); 528 return -EIO; 529 } 530 } 531 532 spin_lock_irq(&phba->hbalock); 533 /* Initialize ERATT handling flag */ 534 phba->hba_flag &= ~HBA_ERATT_HANDLED; 535 536 /* Enable appropriate host interrupts */ 537 if (lpfc_readl(phba->HCregaddr, &status)) { 538 spin_unlock_irq(&phba->hbalock); 539 return -EIO; 540 } 541 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 542 if (psli->num_rings > 0) 543 status |= HC_R0INT_ENA; 544 if (psli->num_rings > 1) 545 status |= HC_R1INT_ENA; 546 if (psli->num_rings > 2) 547 status |= HC_R2INT_ENA; 548 if (psli->num_rings > 3) 549 status |= HC_R3INT_ENA; 550 551 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 552 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 553 status &= ~(HC_R0INT_ENA); 554 555 writel(status, phba->HCregaddr); 556 readl(phba->HCregaddr); /* flush */ 557 spin_unlock_irq(&phba->hbalock); 558 559 /* Set up ring-0 (ELS) timer */ 560 timeout = phba->fc_ratov * 2; 561 mod_timer(&vport->els_tmofunc, 562 jiffies + msecs_to_jiffies(1000 * timeout)); 563 /* Set up heart beat (HB) timer */ 564 mod_timer(&phba->hb_tmofunc, 565 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 566 phba->hb_outstanding = 0; 567 phba->last_completion_time = jiffies; 568 /* Set up error attention (ERATT) polling timer */ 569 mod_timer(&phba->eratt_poll, 570 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL)); 571 572 if (phba->hba_flag & LINK_DISABLED) { 573 lpfc_printf_log(phba, 574 KERN_ERR, LOG_INIT, 575 "2598 Adapter Link is disabled.\n"); 576 lpfc_down_link(phba, pmb); 577 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 578 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 579 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 580 lpfc_printf_log(phba, 581 KERN_ERR, LOG_INIT, 582 "2599 Adapter failed to issue DOWN_LINK" 583 " mbox command rc 0x%x\n", rc); 584 585 mempool_free(pmb, phba->mbox_mem_pool); 586 return -EIO; 587 } 588 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 589 mempool_free(pmb, phba->mbox_mem_pool); 590 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 591 if (rc) 592 return rc; 593 } 594 /* MBOX buffer will be freed in mbox compl */ 595 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 596 if (!pmb) { 597 phba->link_state = LPFC_HBA_ERROR; 598 return -ENOMEM; 599 } 600 601 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 602 pmb->mbox_cmpl = lpfc_config_async_cmpl; 603 pmb->vport = phba->pport; 604 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 605 606 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 607 lpfc_printf_log(phba, 608 KERN_ERR, 609 LOG_INIT, 610 "0456 Adapter failed to issue " 611 "ASYNCEVT_ENABLE mbox status x%x\n", 612 rc); 613 mempool_free(pmb, phba->mbox_mem_pool); 614 } 615 616 /* Get Option rom version */ 617 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 618 if (!pmb) { 619 phba->link_state = LPFC_HBA_ERROR; 620 return -ENOMEM; 621 } 622 623 lpfc_dump_wakeup_param(phba, pmb); 624 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 625 pmb->vport = phba->pport; 626 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 627 628 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 629 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 630 "to get Option ROM version status x%x\n", rc); 631 mempool_free(pmb, phba->mbox_mem_pool); 632 } 633 634 return 0; 635 } 636 637 /** 638 * lpfc_hba_init_link - Initialize the FC link 639 * @phba: pointer to lpfc hba data structure. 640 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 641 * 642 * This routine will issue the INIT_LINK mailbox command call. 643 * It is available to other drivers through the lpfc_hba data 644 * structure for use as a delayed link up mechanism with the 645 * module parameter lpfc_suppress_link_up. 646 * 647 * Return code 648 * 0 - success 649 * Any other value - error 650 **/ 651 int 652 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 653 { 654 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); 655 } 656 657 /** 658 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology 659 * @phba: pointer to lpfc hba data structure. 660 * @fc_topology: desired fc topology. 661 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 662 * 663 * This routine will issue the INIT_LINK mailbox command call. 664 * It is available to other drivers through the lpfc_hba data 665 * structure for use as a delayed link up mechanism with the 666 * module parameter lpfc_suppress_link_up. 667 * 668 * Return code 669 * 0 - success 670 * Any other value - error 671 **/ 672 int 673 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, 674 uint32_t flag) 675 { 676 struct lpfc_vport *vport = phba->pport; 677 LPFC_MBOXQ_t *pmb; 678 MAILBOX_t *mb; 679 int rc; 680 681 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 682 if (!pmb) { 683 phba->link_state = LPFC_HBA_ERROR; 684 return -ENOMEM; 685 } 686 mb = &pmb->u.mb; 687 pmb->vport = vport; 688 689 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || 690 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && 691 !(phba->lmt & LMT_1Gb)) || 692 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && 693 !(phba->lmt & LMT_2Gb)) || 694 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && 695 !(phba->lmt & LMT_4Gb)) || 696 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && 697 !(phba->lmt & LMT_8Gb)) || 698 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && 699 !(phba->lmt & LMT_10Gb)) || 700 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && 701 !(phba->lmt & LMT_16Gb))) { 702 /* Reset link speed to auto */ 703 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 704 "1302 Invalid speed for this board:%d " 705 "Reset link speed to auto.\n", 706 phba->cfg_link_speed); 707 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 708 } 709 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); 710 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 711 if (phba->sli_rev < LPFC_SLI_REV4) 712 lpfc_set_loopback_flag(phba); 713 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 714 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 715 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 716 "0498 Adapter failed to init, mbxCmd x%x " 717 "INIT_LINK, mbxStatus x%x\n", 718 mb->mbxCommand, mb->mbxStatus); 719 if (phba->sli_rev <= LPFC_SLI_REV3) { 720 /* Clear all interrupt enable conditions */ 721 writel(0, phba->HCregaddr); 722 readl(phba->HCregaddr); /* flush */ 723 /* Clear all pending interrupts */ 724 writel(0xffffffff, phba->HAregaddr); 725 readl(phba->HAregaddr); /* flush */ 726 } 727 phba->link_state = LPFC_HBA_ERROR; 728 if (rc != MBX_BUSY || flag == MBX_POLL) 729 mempool_free(pmb, phba->mbox_mem_pool); 730 return -EIO; 731 } 732 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 733 if (flag == MBX_POLL) 734 mempool_free(pmb, phba->mbox_mem_pool); 735 736 return 0; 737 } 738 739 /** 740 * lpfc_hba_down_link - this routine downs the FC link 741 * @phba: pointer to lpfc hba data structure. 742 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 743 * 744 * This routine will issue the DOWN_LINK mailbox command call. 745 * It is available to other drivers through the lpfc_hba data 746 * structure for use to stop the link. 747 * 748 * Return code 749 * 0 - success 750 * Any other value - error 751 **/ 752 int 753 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 754 { 755 LPFC_MBOXQ_t *pmb; 756 int rc; 757 758 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 759 if (!pmb) { 760 phba->link_state = LPFC_HBA_ERROR; 761 return -ENOMEM; 762 } 763 764 lpfc_printf_log(phba, 765 KERN_ERR, LOG_INIT, 766 "0491 Adapter Link is disabled.\n"); 767 lpfc_down_link(phba, pmb); 768 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 769 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 770 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 771 lpfc_printf_log(phba, 772 KERN_ERR, LOG_INIT, 773 "2522 Adapter failed to issue DOWN_LINK" 774 " mbox command rc 0x%x\n", rc); 775 776 mempool_free(pmb, phba->mbox_mem_pool); 777 return -EIO; 778 } 779 if (flag == MBX_POLL) 780 mempool_free(pmb, phba->mbox_mem_pool); 781 782 return 0; 783 } 784 785 /** 786 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 787 * @phba: pointer to lpfc HBA data structure. 788 * 789 * This routine will do LPFC uninitialization before the HBA is reset when 790 * bringing down the SLI Layer. 791 * 792 * Return codes 793 * 0 - success. 794 * Any other value - error. 795 **/ 796 int 797 lpfc_hba_down_prep(struct lpfc_hba *phba) 798 { 799 struct lpfc_vport **vports; 800 int i; 801 802 if (phba->sli_rev <= LPFC_SLI_REV3) { 803 /* Disable interrupts */ 804 writel(0, phba->HCregaddr); 805 readl(phba->HCregaddr); /* flush */ 806 } 807 808 if (phba->pport->load_flag & FC_UNLOADING) 809 lpfc_cleanup_discovery_resources(phba->pport); 810 else { 811 vports = lpfc_create_vport_work_array(phba); 812 if (vports != NULL) 813 for (i = 0; i <= phba->max_vports && 814 vports[i] != NULL; i++) 815 lpfc_cleanup_discovery_resources(vports[i]); 816 lpfc_destroy_vport_work_array(phba, vports); 817 } 818 return 0; 819 } 820 821 /** 822 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 823 * @phba: pointer to lpfc HBA data structure. 824 * 825 * This routine will do uninitialization after the HBA is reset when bring 826 * down the SLI Layer. 827 * 828 * Return codes 829 * 0 - success. 830 * Any other value - error. 831 **/ 832 static int 833 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 834 { 835 struct lpfc_sli *psli = &phba->sli; 836 struct lpfc_sli_ring *pring; 837 struct lpfc_dmabuf *mp, *next_mp; 838 LIST_HEAD(completions); 839 int i; 840 841 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 842 lpfc_sli_hbqbuf_free_all(phba); 843 else { 844 /* Cleanup preposted buffers on the ELS ring */ 845 pring = &psli->ring[LPFC_ELS_RING]; 846 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 847 list_del(&mp->list); 848 pring->postbufq_cnt--; 849 lpfc_mbuf_free(phba, mp->virt, mp->phys); 850 kfree(mp); 851 } 852 } 853 854 spin_lock_irq(&phba->hbalock); 855 for (i = 0; i < psli->num_rings; i++) { 856 pring = &psli->ring[i]; 857 858 /* At this point in time the HBA is either reset or DOA. Either 859 * way, nothing should be on txcmplq as it will NEVER complete. 860 */ 861 list_splice_init(&pring->txcmplq, &completions); 862 spin_unlock_irq(&phba->hbalock); 863 864 /* Cancel all the IOCBs from the completions list */ 865 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 866 IOERR_SLI_ABORTED); 867 868 lpfc_sli_abort_iocb_ring(phba, pring); 869 spin_lock_irq(&phba->hbalock); 870 } 871 spin_unlock_irq(&phba->hbalock); 872 873 return 0; 874 } 875 876 /** 877 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 878 * @phba: pointer to lpfc HBA data structure. 879 * 880 * This routine will do uninitialization after the HBA is reset when bring 881 * down the SLI Layer. 882 * 883 * Return codes 884 * 0 - success. 885 * Any other value - error. 886 **/ 887 static int 888 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 889 { 890 struct lpfc_scsi_buf *psb, *psb_next; 891 LIST_HEAD(aborts); 892 int ret; 893 unsigned long iflag = 0; 894 struct lpfc_sglq *sglq_entry = NULL; 895 896 ret = lpfc_hba_down_post_s3(phba); 897 if (ret) 898 return ret; 899 /* At this point in time the HBA is either reset or DOA. Either 900 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 901 * on the lpfc_sgl_list so that it can either be freed if the 902 * driver is unloading or reposted if the driver is restarting 903 * the port. 904 */ 905 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 906 /* scsl_buf_list */ 907 /* abts_sgl_list_lock required because worker thread uses this 908 * list. 909 */ 910 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 911 list_for_each_entry(sglq_entry, 912 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 913 sglq_entry->state = SGL_FREED; 914 915 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 916 &phba->sli4_hba.lpfc_sgl_list); 917 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 918 /* abts_scsi_buf_list_lock required because worker thread uses this 919 * list. 920 */ 921 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 922 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 923 &aborts); 924 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 925 spin_unlock_irq(&phba->hbalock); 926 927 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 928 psb->pCmd = NULL; 929 psb->status = IOSTAT_SUCCESS; 930 } 931 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); 932 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put); 933 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); 934 return 0; 935 } 936 937 /** 938 * lpfc_hba_down_post - Wrapper func for hba down post routine 939 * @phba: pointer to lpfc HBA data structure. 940 * 941 * This routine wraps the actual SLI3 or SLI4 routine for performing 942 * uninitialization after the HBA is reset when bring down the SLI Layer. 943 * 944 * Return codes 945 * 0 - success. 946 * Any other value - error. 947 **/ 948 int 949 lpfc_hba_down_post(struct lpfc_hba *phba) 950 { 951 return (*phba->lpfc_hba_down_post)(phba); 952 } 953 954 /** 955 * lpfc_hb_timeout - The HBA-timer timeout handler 956 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 957 * 958 * This is the HBA-timer timeout handler registered to the lpfc driver. When 959 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 960 * work-port-events bitmap and the worker thread is notified. This timeout 961 * event will be used by the worker thread to invoke the actual timeout 962 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 963 * be performed in the timeout handler and the HBA timeout event bit shall 964 * be cleared by the worker thread after it has taken the event bitmap out. 965 **/ 966 static void 967 lpfc_hb_timeout(unsigned long ptr) 968 { 969 struct lpfc_hba *phba; 970 uint32_t tmo_posted; 971 unsigned long iflag; 972 973 phba = (struct lpfc_hba *)ptr; 974 975 /* Check for heart beat timeout conditions */ 976 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 977 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 978 if (!tmo_posted) 979 phba->pport->work_port_events |= WORKER_HB_TMO; 980 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 981 982 /* Tell the worker thread there is work to do */ 983 if (!tmo_posted) 984 lpfc_worker_wake_up(phba); 985 return; 986 } 987 988 /** 989 * lpfc_rrq_timeout - The RRQ-timer timeout handler 990 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 991 * 992 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 993 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 994 * work-port-events bitmap and the worker thread is notified. This timeout 995 * event will be used by the worker thread to invoke the actual timeout 996 * handler routine, lpfc_rrq_handler. Any periodical operations will 997 * be performed in the timeout handler and the RRQ timeout event bit shall 998 * be cleared by the worker thread after it has taken the event bitmap out. 999 **/ 1000 static void 1001 lpfc_rrq_timeout(unsigned long ptr) 1002 { 1003 struct lpfc_hba *phba; 1004 unsigned long iflag; 1005 1006 phba = (struct lpfc_hba *)ptr; 1007 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1008 phba->hba_flag |= HBA_RRQ_ACTIVE; 1009 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1010 lpfc_worker_wake_up(phba); 1011 } 1012 1013 /** 1014 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 1015 * @phba: pointer to lpfc hba data structure. 1016 * @pmboxq: pointer to the driver internal queue element for mailbox command. 1017 * 1018 * This is the callback function to the lpfc heart-beat mailbox command. 1019 * If configured, the lpfc driver issues the heart-beat mailbox command to 1020 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 1021 * heart-beat mailbox command is issued, the driver shall set up heart-beat 1022 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 1023 * heart-beat outstanding state. Once the mailbox command comes back and 1024 * no error conditions detected, the heart-beat mailbox command timer is 1025 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1026 * state is cleared for the next heart-beat. If the timer expired with the 1027 * heart-beat outstanding state set, the driver will put the HBA offline. 1028 **/ 1029 static void 1030 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1031 { 1032 unsigned long drvr_flag; 1033 1034 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1035 phba->hb_outstanding = 0; 1036 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1037 1038 /* Check and reset heart-beat timer is necessary */ 1039 mempool_free(pmboxq, phba->mbox_mem_pool); 1040 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1041 !(phba->link_state == LPFC_HBA_ERROR) && 1042 !(phba->pport->load_flag & FC_UNLOADING)) 1043 mod_timer(&phba->hb_tmofunc, 1044 jiffies + 1045 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1046 return; 1047 } 1048 1049 /** 1050 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1051 * @phba: pointer to lpfc hba data structure. 1052 * 1053 * This is the actual HBA-timer timeout handler to be invoked by the worker 1054 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1055 * handler performs any periodic operations needed for the device. If such 1056 * periodic event has already been attended to either in the interrupt handler 1057 * or by processing slow-ring or fast-ring events within the HBA-timer 1058 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1059 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1060 * is configured and there is no heart-beat mailbox command outstanding, a 1061 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1062 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1063 * to offline. 1064 **/ 1065 void 1066 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1067 { 1068 struct lpfc_vport **vports; 1069 LPFC_MBOXQ_t *pmboxq; 1070 struct lpfc_dmabuf *buf_ptr; 1071 int retval, i; 1072 struct lpfc_sli *psli = &phba->sli; 1073 LIST_HEAD(completions); 1074 1075 vports = lpfc_create_vport_work_array(phba); 1076 if (vports != NULL) 1077 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1078 lpfc_rcv_seq_check_edtov(vports[i]); 1079 lpfc_destroy_vport_work_array(phba, vports); 1080 1081 if ((phba->link_state == LPFC_HBA_ERROR) || 1082 (phba->pport->load_flag & FC_UNLOADING) || 1083 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1084 return; 1085 1086 spin_lock_irq(&phba->pport->work_port_lock); 1087 1088 if (time_after(phba->last_completion_time + 1089 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL), 1090 jiffies)) { 1091 spin_unlock_irq(&phba->pport->work_port_lock); 1092 if (!phba->hb_outstanding) 1093 mod_timer(&phba->hb_tmofunc, 1094 jiffies + 1095 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1096 else 1097 mod_timer(&phba->hb_tmofunc, 1098 jiffies + 1099 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1100 return; 1101 } 1102 spin_unlock_irq(&phba->pport->work_port_lock); 1103 1104 if (phba->elsbuf_cnt && 1105 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1106 spin_lock_irq(&phba->hbalock); 1107 list_splice_init(&phba->elsbuf, &completions); 1108 phba->elsbuf_cnt = 0; 1109 phba->elsbuf_prev_cnt = 0; 1110 spin_unlock_irq(&phba->hbalock); 1111 1112 while (!list_empty(&completions)) { 1113 list_remove_head(&completions, buf_ptr, 1114 struct lpfc_dmabuf, list); 1115 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1116 kfree(buf_ptr); 1117 } 1118 } 1119 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1120 1121 /* If there is no heart beat outstanding, issue a heartbeat command */ 1122 if (phba->cfg_enable_hba_heartbeat) { 1123 if (!phba->hb_outstanding) { 1124 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1125 (list_empty(&psli->mboxq))) { 1126 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1127 GFP_KERNEL); 1128 if (!pmboxq) { 1129 mod_timer(&phba->hb_tmofunc, 1130 jiffies + 1131 msecs_to_jiffies(1000 * 1132 LPFC_HB_MBOX_INTERVAL)); 1133 return; 1134 } 1135 1136 lpfc_heart_beat(phba, pmboxq); 1137 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1138 pmboxq->vport = phba->pport; 1139 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1140 MBX_NOWAIT); 1141 1142 if (retval != MBX_BUSY && 1143 retval != MBX_SUCCESS) { 1144 mempool_free(pmboxq, 1145 phba->mbox_mem_pool); 1146 mod_timer(&phba->hb_tmofunc, 1147 jiffies + 1148 msecs_to_jiffies(1000 * 1149 LPFC_HB_MBOX_INTERVAL)); 1150 return; 1151 } 1152 phba->skipped_hb = 0; 1153 phba->hb_outstanding = 1; 1154 } else if (time_before_eq(phba->last_completion_time, 1155 phba->skipped_hb)) { 1156 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1157 "2857 Last completion time not " 1158 " updated in %d ms\n", 1159 jiffies_to_msecs(jiffies 1160 - phba->last_completion_time)); 1161 } else 1162 phba->skipped_hb = jiffies; 1163 1164 mod_timer(&phba->hb_tmofunc, 1165 jiffies + 1166 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1167 return; 1168 } else { 1169 /* 1170 * If heart beat timeout called with hb_outstanding set 1171 * we need to give the hb mailbox cmd a chance to 1172 * complete or TMO. 1173 */ 1174 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1175 "0459 Adapter heartbeat still out" 1176 "standing:last compl time was %d ms.\n", 1177 jiffies_to_msecs(jiffies 1178 - phba->last_completion_time)); 1179 mod_timer(&phba->hb_tmofunc, 1180 jiffies + 1181 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1182 } 1183 } 1184 } 1185 1186 /** 1187 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1188 * @phba: pointer to lpfc hba data structure. 1189 * 1190 * This routine is called to bring the HBA offline when HBA hardware error 1191 * other than Port Error 6 has been detected. 1192 **/ 1193 static void 1194 lpfc_offline_eratt(struct lpfc_hba *phba) 1195 { 1196 struct lpfc_sli *psli = &phba->sli; 1197 1198 spin_lock_irq(&phba->hbalock); 1199 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1200 spin_unlock_irq(&phba->hbalock); 1201 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1202 1203 lpfc_offline(phba); 1204 lpfc_reset_barrier(phba); 1205 spin_lock_irq(&phba->hbalock); 1206 lpfc_sli_brdreset(phba); 1207 spin_unlock_irq(&phba->hbalock); 1208 lpfc_hba_down_post(phba); 1209 lpfc_sli_brdready(phba, HS_MBRDY); 1210 lpfc_unblock_mgmt_io(phba); 1211 phba->link_state = LPFC_HBA_ERROR; 1212 return; 1213 } 1214 1215 /** 1216 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1217 * @phba: pointer to lpfc hba data structure. 1218 * 1219 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1220 * other than Port Error 6 has been detected. 1221 **/ 1222 void 1223 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1224 { 1225 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1226 lpfc_offline(phba); 1227 lpfc_sli4_brdreset(phba); 1228 lpfc_hba_down_post(phba); 1229 lpfc_sli4_post_status_check(phba); 1230 lpfc_unblock_mgmt_io(phba); 1231 phba->link_state = LPFC_HBA_ERROR; 1232 } 1233 1234 /** 1235 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1236 * @phba: pointer to lpfc hba data structure. 1237 * 1238 * This routine is invoked to handle the deferred HBA hardware error 1239 * conditions. This type of error is indicated by HBA by setting ER1 1240 * and another ER bit in the host status register. The driver will 1241 * wait until the ER1 bit clears before handling the error condition. 1242 **/ 1243 static void 1244 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1245 { 1246 uint32_t old_host_status = phba->work_hs; 1247 struct lpfc_sli_ring *pring; 1248 struct lpfc_sli *psli = &phba->sli; 1249 1250 /* If the pci channel is offline, ignore possible errors, 1251 * since we cannot communicate with the pci card anyway. 1252 */ 1253 if (pci_channel_offline(phba->pcidev)) { 1254 spin_lock_irq(&phba->hbalock); 1255 phba->hba_flag &= ~DEFER_ERATT; 1256 spin_unlock_irq(&phba->hbalock); 1257 return; 1258 } 1259 1260 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1261 "0479 Deferred Adapter Hardware Error " 1262 "Data: x%x x%x x%x\n", 1263 phba->work_hs, 1264 phba->work_status[0], phba->work_status[1]); 1265 1266 spin_lock_irq(&phba->hbalock); 1267 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1268 spin_unlock_irq(&phba->hbalock); 1269 1270 1271 /* 1272 * Firmware stops when it triggred erratt. That could cause the I/Os 1273 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1274 * SCSI layer retry it after re-establishing link. 1275 */ 1276 pring = &psli->ring[psli->fcp_ring]; 1277 lpfc_sli_abort_iocb_ring(phba, pring); 1278 1279 /* 1280 * There was a firmware error. Take the hba offline and then 1281 * attempt to restart it. 1282 */ 1283 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 1284 lpfc_offline(phba); 1285 1286 /* Wait for the ER1 bit to clear.*/ 1287 while (phba->work_hs & HS_FFER1) { 1288 msleep(100); 1289 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1290 phba->work_hs = UNPLUG_ERR ; 1291 break; 1292 } 1293 /* If driver is unloading let the worker thread continue */ 1294 if (phba->pport->load_flag & FC_UNLOADING) { 1295 phba->work_hs = 0; 1296 break; 1297 } 1298 } 1299 1300 /* 1301 * This is to ptrotect against a race condition in which 1302 * first write to the host attention register clear the 1303 * host status register. 1304 */ 1305 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1306 phba->work_hs = old_host_status & ~HS_FFER1; 1307 1308 spin_lock_irq(&phba->hbalock); 1309 phba->hba_flag &= ~DEFER_ERATT; 1310 spin_unlock_irq(&phba->hbalock); 1311 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1312 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1313 } 1314 1315 static void 1316 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1317 { 1318 struct lpfc_board_event_header board_event; 1319 struct Scsi_Host *shost; 1320 1321 board_event.event_type = FC_REG_BOARD_EVENT; 1322 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1323 shost = lpfc_shost_from_vport(phba->pport); 1324 fc_host_post_vendor_event(shost, fc_get_event_number(), 1325 sizeof(board_event), 1326 (char *) &board_event, 1327 LPFC_NL_VENDOR_ID); 1328 } 1329 1330 /** 1331 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1332 * @phba: pointer to lpfc hba data structure. 1333 * 1334 * This routine is invoked to handle the following HBA hardware error 1335 * conditions: 1336 * 1 - HBA error attention interrupt 1337 * 2 - DMA ring index out of range 1338 * 3 - Mailbox command came back as unknown 1339 **/ 1340 static void 1341 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1342 { 1343 struct lpfc_vport *vport = phba->pport; 1344 struct lpfc_sli *psli = &phba->sli; 1345 struct lpfc_sli_ring *pring; 1346 uint32_t event_data; 1347 unsigned long temperature; 1348 struct temp_event temp_event_data; 1349 struct Scsi_Host *shost; 1350 1351 /* If the pci channel is offline, ignore possible errors, 1352 * since we cannot communicate with the pci card anyway. 1353 */ 1354 if (pci_channel_offline(phba->pcidev)) { 1355 spin_lock_irq(&phba->hbalock); 1356 phba->hba_flag &= ~DEFER_ERATT; 1357 spin_unlock_irq(&phba->hbalock); 1358 return; 1359 } 1360 1361 /* If resets are disabled then leave the HBA alone and return */ 1362 if (!phba->cfg_enable_hba_reset) 1363 return; 1364 1365 /* Send an internal error event to mgmt application */ 1366 lpfc_board_errevt_to_mgmt(phba); 1367 1368 if (phba->hba_flag & DEFER_ERATT) 1369 lpfc_handle_deferred_eratt(phba); 1370 1371 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1372 if (phba->work_hs & HS_FFER6) 1373 /* Re-establishing Link */ 1374 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1375 "1301 Re-establishing Link " 1376 "Data: x%x x%x x%x\n", 1377 phba->work_hs, phba->work_status[0], 1378 phba->work_status[1]); 1379 if (phba->work_hs & HS_FFER8) 1380 /* Device Zeroization */ 1381 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1382 "2861 Host Authentication device " 1383 "zeroization Data:x%x x%x x%x\n", 1384 phba->work_hs, phba->work_status[0], 1385 phba->work_status[1]); 1386 1387 spin_lock_irq(&phba->hbalock); 1388 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1389 spin_unlock_irq(&phba->hbalock); 1390 1391 /* 1392 * Firmware stops when it triggled erratt with HS_FFER6. 1393 * That could cause the I/Os dropped by the firmware. 1394 * Error iocb (I/O) on txcmplq and let the SCSI layer 1395 * retry it after re-establishing link. 1396 */ 1397 pring = &psli->ring[psli->fcp_ring]; 1398 lpfc_sli_abort_iocb_ring(phba, pring); 1399 1400 /* 1401 * There was a firmware error. Take the hba offline and then 1402 * attempt to restart it. 1403 */ 1404 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1405 lpfc_offline(phba); 1406 lpfc_sli_brdrestart(phba); 1407 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1408 lpfc_unblock_mgmt_io(phba); 1409 return; 1410 } 1411 lpfc_unblock_mgmt_io(phba); 1412 } else if (phba->work_hs & HS_CRIT_TEMP) { 1413 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1414 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1415 temp_event_data.event_code = LPFC_CRIT_TEMP; 1416 temp_event_data.data = (uint32_t)temperature; 1417 1418 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1419 "0406 Adapter maximum temperature exceeded " 1420 "(%ld), taking this port offline " 1421 "Data: x%x x%x x%x\n", 1422 temperature, phba->work_hs, 1423 phba->work_status[0], phba->work_status[1]); 1424 1425 shost = lpfc_shost_from_vport(phba->pport); 1426 fc_host_post_vendor_event(shost, fc_get_event_number(), 1427 sizeof(temp_event_data), 1428 (char *) &temp_event_data, 1429 SCSI_NL_VID_TYPE_PCI 1430 | PCI_VENDOR_ID_EMULEX); 1431 1432 spin_lock_irq(&phba->hbalock); 1433 phba->over_temp_state = HBA_OVER_TEMP; 1434 spin_unlock_irq(&phba->hbalock); 1435 lpfc_offline_eratt(phba); 1436 1437 } else { 1438 /* The if clause above forces this code path when the status 1439 * failure is a value other than FFER6. Do not call the offline 1440 * twice. This is the adapter hardware error path. 1441 */ 1442 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1443 "0457 Adapter Hardware Error " 1444 "Data: x%x x%x x%x\n", 1445 phba->work_hs, 1446 phba->work_status[0], phba->work_status[1]); 1447 1448 event_data = FC_REG_DUMP_EVENT; 1449 shost = lpfc_shost_from_vport(vport); 1450 fc_host_post_vendor_event(shost, fc_get_event_number(), 1451 sizeof(event_data), (char *) &event_data, 1452 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1453 1454 lpfc_offline_eratt(phba); 1455 } 1456 return; 1457 } 1458 1459 /** 1460 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg 1461 * @phba: pointer to lpfc hba data structure. 1462 * @mbx_action: flag for mailbox shutdown action. 1463 * 1464 * This routine is invoked to perform an SLI4 port PCI function reset in 1465 * response to port status register polling attention. It waits for port 1466 * status register (ERR, RDY, RN) bits before proceeding with function reset. 1467 * During this process, interrupt vectors are freed and later requested 1468 * for handling possible port resource change. 1469 **/ 1470 static int 1471 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action) 1472 { 1473 int rc; 1474 uint32_t intr_mode; 1475 1476 /* 1477 * On error status condition, driver need to wait for port 1478 * ready before performing reset. 1479 */ 1480 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1481 if (!rc) { 1482 /* need reset: attempt for port recovery */ 1483 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1484 "2887 Reset Needed: Attempting Port " 1485 "Recovery...\n"); 1486 lpfc_offline_prep(phba, mbx_action); 1487 lpfc_offline(phba); 1488 /* release interrupt for possible resource change */ 1489 lpfc_sli4_disable_intr(phba); 1490 lpfc_sli_brdrestart(phba); 1491 /* request and enable interrupt */ 1492 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 1493 if (intr_mode == LPFC_INTR_ERROR) { 1494 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1495 "3175 Failed to enable interrupt\n"); 1496 return -EIO; 1497 } else { 1498 phba->intr_mode = intr_mode; 1499 } 1500 rc = lpfc_online(phba); 1501 if (rc == 0) 1502 lpfc_unblock_mgmt_io(phba); 1503 } 1504 return rc; 1505 } 1506 1507 /** 1508 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1509 * @phba: pointer to lpfc hba data structure. 1510 * 1511 * This routine is invoked to handle the SLI4 HBA hardware error attention 1512 * conditions. 1513 **/ 1514 static void 1515 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1516 { 1517 struct lpfc_vport *vport = phba->pport; 1518 uint32_t event_data; 1519 struct Scsi_Host *shost; 1520 uint32_t if_type; 1521 struct lpfc_register portstat_reg = {0}; 1522 uint32_t reg_err1, reg_err2; 1523 uint32_t uerrlo_reg, uemasklo_reg; 1524 uint32_t pci_rd_rc1, pci_rd_rc2; 1525 int rc; 1526 1527 /* If the pci channel is offline, ignore possible errors, since 1528 * we cannot communicate with the pci card anyway. 1529 */ 1530 if (pci_channel_offline(phba->pcidev)) 1531 return; 1532 /* If resets are disabled then leave the HBA alone and return */ 1533 if (!phba->cfg_enable_hba_reset) 1534 return; 1535 1536 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1537 switch (if_type) { 1538 case LPFC_SLI_INTF_IF_TYPE_0: 1539 pci_rd_rc1 = lpfc_readl( 1540 phba->sli4_hba.u.if_type0.UERRLOregaddr, 1541 &uerrlo_reg); 1542 pci_rd_rc2 = lpfc_readl( 1543 phba->sli4_hba.u.if_type0.UEMASKLOregaddr, 1544 &uemasklo_reg); 1545 /* consider PCI bus read error as pci_channel_offline */ 1546 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) 1547 return; 1548 lpfc_sli4_offline_eratt(phba); 1549 break; 1550 case LPFC_SLI_INTF_IF_TYPE_2: 1551 pci_rd_rc1 = lpfc_readl( 1552 phba->sli4_hba.u.if_type2.STATUSregaddr, 1553 &portstat_reg.word0); 1554 /* consider PCI bus read error as pci_channel_offline */ 1555 if (pci_rd_rc1 == -EIO) { 1556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1557 "3151 PCI bus read access failure: x%x\n", 1558 readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); 1559 return; 1560 } 1561 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); 1562 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); 1563 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1564 /* TODO: Register for Overtemp async events. */ 1565 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1566 "2889 Port Overtemperature event, " 1567 "taking port offline\n"); 1568 spin_lock_irq(&phba->hbalock); 1569 phba->over_temp_state = HBA_OVER_TEMP; 1570 spin_unlock_irq(&phba->hbalock); 1571 lpfc_sli4_offline_eratt(phba); 1572 break; 1573 } 1574 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1575 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) 1576 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1577 "3143 Port Down: Firmware Restarted\n"); 1578 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1579 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1580 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1581 "3144 Port Down: Debug Dump\n"); 1582 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1583 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) 1584 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1585 "3145 Port Down: Provisioning\n"); 1586 1587 /* Check port status register for function reset */ 1588 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT); 1589 if (rc == 0) { 1590 /* don't report event on forced debug dump */ 1591 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1592 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1593 return; 1594 else 1595 break; 1596 } 1597 /* fall through for not able to recover */ 1598 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1599 "3152 Unrecoverable error, bring the port " 1600 "offline\n"); 1601 lpfc_sli4_offline_eratt(phba); 1602 break; 1603 case LPFC_SLI_INTF_IF_TYPE_1: 1604 default: 1605 break; 1606 } 1607 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1608 "3123 Report dump event to upper layer\n"); 1609 /* Send an internal error event to mgmt application */ 1610 lpfc_board_errevt_to_mgmt(phba); 1611 1612 event_data = FC_REG_DUMP_EVENT; 1613 shost = lpfc_shost_from_vport(vport); 1614 fc_host_post_vendor_event(shost, fc_get_event_number(), 1615 sizeof(event_data), (char *) &event_data, 1616 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1617 } 1618 1619 /** 1620 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1621 * @phba: pointer to lpfc HBA data structure. 1622 * 1623 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1624 * routine from the API jump table function pointer from the lpfc_hba struct. 1625 * 1626 * Return codes 1627 * 0 - success. 1628 * Any other value - error. 1629 **/ 1630 void 1631 lpfc_handle_eratt(struct lpfc_hba *phba) 1632 { 1633 (*phba->lpfc_handle_eratt)(phba); 1634 } 1635 1636 /** 1637 * lpfc_handle_latt - The HBA link event handler 1638 * @phba: pointer to lpfc hba data structure. 1639 * 1640 * This routine is invoked from the worker thread to handle a HBA host 1641 * attention link event. 1642 **/ 1643 void 1644 lpfc_handle_latt(struct lpfc_hba *phba) 1645 { 1646 struct lpfc_vport *vport = phba->pport; 1647 struct lpfc_sli *psli = &phba->sli; 1648 LPFC_MBOXQ_t *pmb; 1649 volatile uint32_t control; 1650 struct lpfc_dmabuf *mp; 1651 int rc = 0; 1652 1653 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1654 if (!pmb) { 1655 rc = 1; 1656 goto lpfc_handle_latt_err_exit; 1657 } 1658 1659 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1660 if (!mp) { 1661 rc = 2; 1662 goto lpfc_handle_latt_free_pmb; 1663 } 1664 1665 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1666 if (!mp->virt) { 1667 rc = 3; 1668 goto lpfc_handle_latt_free_mp; 1669 } 1670 1671 /* Cleanup any outstanding ELS commands */ 1672 lpfc_els_flush_all_cmd(phba); 1673 1674 psli->slistat.link_event++; 1675 lpfc_read_topology(phba, pmb, mp); 1676 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1677 pmb->vport = vport; 1678 /* Block ELS IOCBs until we have processed this mbox command */ 1679 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1680 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1681 if (rc == MBX_NOT_FINISHED) { 1682 rc = 4; 1683 goto lpfc_handle_latt_free_mbuf; 1684 } 1685 1686 /* Clear Link Attention in HA REG */ 1687 spin_lock_irq(&phba->hbalock); 1688 writel(HA_LATT, phba->HAregaddr); 1689 readl(phba->HAregaddr); /* flush */ 1690 spin_unlock_irq(&phba->hbalock); 1691 1692 return; 1693 1694 lpfc_handle_latt_free_mbuf: 1695 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1696 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1697 lpfc_handle_latt_free_mp: 1698 kfree(mp); 1699 lpfc_handle_latt_free_pmb: 1700 mempool_free(pmb, phba->mbox_mem_pool); 1701 lpfc_handle_latt_err_exit: 1702 /* Enable Link attention interrupts */ 1703 spin_lock_irq(&phba->hbalock); 1704 psli->sli_flag |= LPFC_PROCESS_LA; 1705 control = readl(phba->HCregaddr); 1706 control |= HC_LAINT_ENA; 1707 writel(control, phba->HCregaddr); 1708 readl(phba->HCregaddr); /* flush */ 1709 1710 /* Clear Link Attention in HA REG */ 1711 writel(HA_LATT, phba->HAregaddr); 1712 readl(phba->HAregaddr); /* flush */ 1713 spin_unlock_irq(&phba->hbalock); 1714 lpfc_linkdown(phba); 1715 phba->link_state = LPFC_HBA_ERROR; 1716 1717 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1718 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1719 1720 return; 1721 } 1722 1723 /** 1724 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1725 * @phba: pointer to lpfc hba data structure. 1726 * @vpd: pointer to the vital product data. 1727 * @len: length of the vital product data in bytes. 1728 * 1729 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1730 * an array of characters. In this routine, the ModelName, ProgramType, and 1731 * ModelDesc, etc. fields of the phba data structure will be populated. 1732 * 1733 * Return codes 1734 * 0 - pointer to the VPD passed in is NULL 1735 * 1 - success 1736 **/ 1737 int 1738 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1739 { 1740 uint8_t lenlo, lenhi; 1741 int Length; 1742 int i, j; 1743 int finished = 0; 1744 int index = 0; 1745 1746 if (!vpd) 1747 return 0; 1748 1749 /* Vital Product */ 1750 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1751 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1752 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1753 (uint32_t) vpd[3]); 1754 while (!finished && (index < (len - 4))) { 1755 switch (vpd[index]) { 1756 case 0x82: 1757 case 0x91: 1758 index += 1; 1759 lenlo = vpd[index]; 1760 index += 1; 1761 lenhi = vpd[index]; 1762 index += 1; 1763 i = ((((unsigned short)lenhi) << 8) + lenlo); 1764 index += i; 1765 break; 1766 case 0x90: 1767 index += 1; 1768 lenlo = vpd[index]; 1769 index += 1; 1770 lenhi = vpd[index]; 1771 index += 1; 1772 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1773 if (Length > len - index) 1774 Length = len - index; 1775 while (Length > 0) { 1776 /* Look for Serial Number */ 1777 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1778 index += 2; 1779 i = vpd[index]; 1780 index += 1; 1781 j = 0; 1782 Length -= (3+i); 1783 while(i--) { 1784 phba->SerialNumber[j++] = vpd[index++]; 1785 if (j == 31) 1786 break; 1787 } 1788 phba->SerialNumber[j] = 0; 1789 continue; 1790 } 1791 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1792 phba->vpd_flag |= VPD_MODEL_DESC; 1793 index += 2; 1794 i = vpd[index]; 1795 index += 1; 1796 j = 0; 1797 Length -= (3+i); 1798 while(i--) { 1799 phba->ModelDesc[j++] = vpd[index++]; 1800 if (j == 255) 1801 break; 1802 } 1803 phba->ModelDesc[j] = 0; 1804 continue; 1805 } 1806 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1807 phba->vpd_flag |= VPD_MODEL_NAME; 1808 index += 2; 1809 i = vpd[index]; 1810 index += 1; 1811 j = 0; 1812 Length -= (3+i); 1813 while(i--) { 1814 phba->ModelName[j++] = vpd[index++]; 1815 if (j == 79) 1816 break; 1817 } 1818 phba->ModelName[j] = 0; 1819 continue; 1820 } 1821 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1822 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1823 index += 2; 1824 i = vpd[index]; 1825 index += 1; 1826 j = 0; 1827 Length -= (3+i); 1828 while(i--) { 1829 phba->ProgramType[j++] = vpd[index++]; 1830 if (j == 255) 1831 break; 1832 } 1833 phba->ProgramType[j] = 0; 1834 continue; 1835 } 1836 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1837 phba->vpd_flag |= VPD_PORT; 1838 index += 2; 1839 i = vpd[index]; 1840 index += 1; 1841 j = 0; 1842 Length -= (3+i); 1843 while(i--) { 1844 if ((phba->sli_rev == LPFC_SLI_REV4) && 1845 (phba->sli4_hba.pport_name_sta == 1846 LPFC_SLI4_PPNAME_GET)) { 1847 j++; 1848 index++; 1849 } else 1850 phba->Port[j++] = vpd[index++]; 1851 if (j == 19) 1852 break; 1853 } 1854 if ((phba->sli_rev != LPFC_SLI_REV4) || 1855 (phba->sli4_hba.pport_name_sta == 1856 LPFC_SLI4_PPNAME_NON)) 1857 phba->Port[j] = 0; 1858 continue; 1859 } 1860 else { 1861 index += 2; 1862 i = vpd[index]; 1863 index += 1; 1864 index += i; 1865 Length -= (3 + i); 1866 } 1867 } 1868 finished = 0; 1869 break; 1870 case 0x78: 1871 finished = 1; 1872 break; 1873 default: 1874 index ++; 1875 break; 1876 } 1877 } 1878 1879 return(1); 1880 } 1881 1882 /** 1883 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1884 * @phba: pointer to lpfc hba data structure. 1885 * @mdp: pointer to the data structure to hold the derived model name. 1886 * @descp: pointer to the data structure to hold the derived description. 1887 * 1888 * This routine retrieves HBA's description based on its registered PCI device 1889 * ID. The @descp passed into this function points to an array of 256 chars. It 1890 * shall be returned with the model name, maximum speed, and the host bus type. 1891 * The @mdp passed into this function points to an array of 80 chars. When the 1892 * function returns, the @mdp will be filled with the model name. 1893 **/ 1894 static void 1895 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1896 { 1897 lpfc_vpd_t *vp; 1898 uint16_t dev_id = phba->pcidev->device; 1899 int max_speed; 1900 int GE = 0; 1901 int oneConnect = 0; /* default is not a oneConnect */ 1902 struct { 1903 char *name; 1904 char *bus; 1905 char *function; 1906 } m = {"<Unknown>", "", ""}; 1907 1908 if (mdp && mdp[0] != '\0' 1909 && descp && descp[0] != '\0') 1910 return; 1911 1912 if (phba->lmt & LMT_16Gb) 1913 max_speed = 16; 1914 else if (phba->lmt & LMT_10Gb) 1915 max_speed = 10; 1916 else if (phba->lmt & LMT_8Gb) 1917 max_speed = 8; 1918 else if (phba->lmt & LMT_4Gb) 1919 max_speed = 4; 1920 else if (phba->lmt & LMT_2Gb) 1921 max_speed = 2; 1922 else if (phba->lmt & LMT_1Gb) 1923 max_speed = 1; 1924 else 1925 max_speed = 0; 1926 1927 vp = &phba->vpd; 1928 1929 switch (dev_id) { 1930 case PCI_DEVICE_ID_FIREFLY: 1931 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1932 break; 1933 case PCI_DEVICE_ID_SUPERFLY: 1934 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1935 m = (typeof(m)){"LP7000", "PCI", 1936 "Fibre Channel Adapter"}; 1937 else 1938 m = (typeof(m)){"LP7000E", "PCI", 1939 "Fibre Channel Adapter"}; 1940 break; 1941 case PCI_DEVICE_ID_DRAGONFLY: 1942 m = (typeof(m)){"LP8000", "PCI", 1943 "Fibre Channel Adapter"}; 1944 break; 1945 case PCI_DEVICE_ID_CENTAUR: 1946 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1947 m = (typeof(m)){"LP9002", "PCI", 1948 "Fibre Channel Adapter"}; 1949 else 1950 m = (typeof(m)){"LP9000", "PCI", 1951 "Fibre Channel Adapter"}; 1952 break; 1953 case PCI_DEVICE_ID_RFLY: 1954 m = (typeof(m)){"LP952", "PCI", 1955 "Fibre Channel Adapter"}; 1956 break; 1957 case PCI_DEVICE_ID_PEGASUS: 1958 m = (typeof(m)){"LP9802", "PCI-X", 1959 "Fibre Channel Adapter"}; 1960 break; 1961 case PCI_DEVICE_ID_THOR: 1962 m = (typeof(m)){"LP10000", "PCI-X", 1963 "Fibre Channel Adapter"}; 1964 break; 1965 case PCI_DEVICE_ID_VIPER: 1966 m = (typeof(m)){"LPX1000", "PCI-X", 1967 "Fibre Channel Adapter"}; 1968 break; 1969 case PCI_DEVICE_ID_PFLY: 1970 m = (typeof(m)){"LP982", "PCI-X", 1971 "Fibre Channel Adapter"}; 1972 break; 1973 case PCI_DEVICE_ID_TFLY: 1974 m = (typeof(m)){"LP1050", "PCI-X", 1975 "Fibre Channel Adapter"}; 1976 break; 1977 case PCI_DEVICE_ID_HELIOS: 1978 m = (typeof(m)){"LP11000", "PCI-X2", 1979 "Fibre Channel Adapter"}; 1980 break; 1981 case PCI_DEVICE_ID_HELIOS_SCSP: 1982 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1983 "Fibre Channel Adapter"}; 1984 break; 1985 case PCI_DEVICE_ID_HELIOS_DCSP: 1986 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1987 "Fibre Channel Adapter"}; 1988 break; 1989 case PCI_DEVICE_ID_NEPTUNE: 1990 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1991 break; 1992 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1993 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1994 break; 1995 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1996 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1997 break; 1998 case PCI_DEVICE_ID_BMID: 1999 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 2000 break; 2001 case PCI_DEVICE_ID_BSMB: 2002 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 2003 break; 2004 case PCI_DEVICE_ID_ZEPHYR: 2005 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2006 break; 2007 case PCI_DEVICE_ID_ZEPHYR_SCSP: 2008 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2009 break; 2010 case PCI_DEVICE_ID_ZEPHYR_DCSP: 2011 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 2012 GE = 1; 2013 break; 2014 case PCI_DEVICE_ID_ZMID: 2015 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 2016 break; 2017 case PCI_DEVICE_ID_ZSMB: 2018 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 2019 break; 2020 case PCI_DEVICE_ID_LP101: 2021 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 2022 break; 2023 case PCI_DEVICE_ID_LP10000S: 2024 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 2025 break; 2026 case PCI_DEVICE_ID_LP11000S: 2027 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 2028 break; 2029 case PCI_DEVICE_ID_LPE11000S: 2030 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 2031 break; 2032 case PCI_DEVICE_ID_SAT: 2033 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 2034 break; 2035 case PCI_DEVICE_ID_SAT_MID: 2036 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 2037 break; 2038 case PCI_DEVICE_ID_SAT_SMB: 2039 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 2040 break; 2041 case PCI_DEVICE_ID_SAT_DCSP: 2042 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 2043 break; 2044 case PCI_DEVICE_ID_SAT_SCSP: 2045 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 2046 break; 2047 case PCI_DEVICE_ID_SAT_S: 2048 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 2049 break; 2050 case PCI_DEVICE_ID_HORNET: 2051 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 2052 GE = 1; 2053 break; 2054 case PCI_DEVICE_ID_PROTEUS_VF: 2055 m = (typeof(m)){"LPev12000", "PCIe IOV", 2056 "Fibre Channel Adapter"}; 2057 break; 2058 case PCI_DEVICE_ID_PROTEUS_PF: 2059 m = (typeof(m)){"LPev12000", "PCIe IOV", 2060 "Fibre Channel Adapter"}; 2061 break; 2062 case PCI_DEVICE_ID_PROTEUS_S: 2063 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 2064 "Fibre Channel Adapter"}; 2065 break; 2066 case PCI_DEVICE_ID_TIGERSHARK: 2067 oneConnect = 1; 2068 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2069 break; 2070 case PCI_DEVICE_ID_TOMCAT: 2071 oneConnect = 1; 2072 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2073 break; 2074 case PCI_DEVICE_ID_FALCON: 2075 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2076 "EmulexSecure Fibre"}; 2077 break; 2078 case PCI_DEVICE_ID_BALIUS: 2079 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2080 "Fibre Channel Adapter"}; 2081 break; 2082 case PCI_DEVICE_ID_LANCER_FC: 2083 case PCI_DEVICE_ID_LANCER_FC_VF: 2084 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2085 break; 2086 case PCI_DEVICE_ID_LANCER_FCOE: 2087 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2088 oneConnect = 1; 2089 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2090 break; 2091 case PCI_DEVICE_ID_SKYHAWK: 2092 case PCI_DEVICE_ID_SKYHAWK_VF: 2093 oneConnect = 1; 2094 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"}; 2095 break; 2096 default: 2097 m = (typeof(m)){"Unknown", "", ""}; 2098 break; 2099 } 2100 2101 if (mdp && mdp[0] == '\0') 2102 snprintf(mdp, 79,"%s", m.name); 2103 /* 2104 * oneConnect hba requires special processing, they are all initiators 2105 * and we put the port number on the end 2106 */ 2107 if (descp && descp[0] == '\0') { 2108 if (oneConnect) 2109 snprintf(descp, 255, 2110 "Emulex OneConnect %s, %s Initiator %s", 2111 m.name, m.function, 2112 phba->Port); 2113 else if (max_speed == 0) 2114 snprintf(descp, 255, 2115 "Emulex %s %s %s ", 2116 m.name, m.bus, m.function); 2117 else 2118 snprintf(descp, 255, 2119 "Emulex %s %d%s %s %s", 2120 m.name, max_speed, (GE) ? "GE" : "Gb", 2121 m.bus, m.function); 2122 } 2123 } 2124 2125 /** 2126 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2127 * @phba: pointer to lpfc hba data structure. 2128 * @pring: pointer to a IOCB ring. 2129 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2130 * 2131 * This routine posts a given number of IOCBs with the associated DMA buffer 2132 * descriptors specified by the cnt argument to the given IOCB ring. 2133 * 2134 * Return codes 2135 * The number of IOCBs NOT able to be posted to the IOCB ring. 2136 **/ 2137 int 2138 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2139 { 2140 IOCB_t *icmd; 2141 struct lpfc_iocbq *iocb; 2142 struct lpfc_dmabuf *mp1, *mp2; 2143 2144 cnt += pring->missbufcnt; 2145 2146 /* While there are buffers to post */ 2147 while (cnt > 0) { 2148 /* Allocate buffer for command iocb */ 2149 iocb = lpfc_sli_get_iocbq(phba); 2150 if (iocb == NULL) { 2151 pring->missbufcnt = cnt; 2152 return cnt; 2153 } 2154 icmd = &iocb->iocb; 2155 2156 /* 2 buffers can be posted per command */ 2157 /* Allocate buffer to post */ 2158 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2159 if (mp1) 2160 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2161 if (!mp1 || !mp1->virt) { 2162 kfree(mp1); 2163 lpfc_sli_release_iocbq(phba, iocb); 2164 pring->missbufcnt = cnt; 2165 return cnt; 2166 } 2167 2168 INIT_LIST_HEAD(&mp1->list); 2169 /* Allocate buffer to post */ 2170 if (cnt > 1) { 2171 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2172 if (mp2) 2173 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2174 &mp2->phys); 2175 if (!mp2 || !mp2->virt) { 2176 kfree(mp2); 2177 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2178 kfree(mp1); 2179 lpfc_sli_release_iocbq(phba, iocb); 2180 pring->missbufcnt = cnt; 2181 return cnt; 2182 } 2183 2184 INIT_LIST_HEAD(&mp2->list); 2185 } else { 2186 mp2 = NULL; 2187 } 2188 2189 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2190 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2191 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2192 icmd->ulpBdeCount = 1; 2193 cnt--; 2194 if (mp2) { 2195 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2196 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2197 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2198 cnt--; 2199 icmd->ulpBdeCount = 2; 2200 } 2201 2202 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2203 icmd->ulpLe = 1; 2204 2205 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2206 IOCB_ERROR) { 2207 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2208 kfree(mp1); 2209 cnt++; 2210 if (mp2) { 2211 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2212 kfree(mp2); 2213 cnt++; 2214 } 2215 lpfc_sli_release_iocbq(phba, iocb); 2216 pring->missbufcnt = cnt; 2217 return cnt; 2218 } 2219 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2220 if (mp2) 2221 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2222 } 2223 pring->missbufcnt = 0; 2224 return 0; 2225 } 2226 2227 /** 2228 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2229 * @phba: pointer to lpfc hba data structure. 2230 * 2231 * This routine posts initial receive IOCB buffers to the ELS ring. The 2232 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2233 * set to 64 IOCBs. 2234 * 2235 * Return codes 2236 * 0 - success (currently always success) 2237 **/ 2238 static int 2239 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2240 { 2241 struct lpfc_sli *psli = &phba->sli; 2242 2243 /* Ring 0, ELS / CT buffers */ 2244 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2245 /* Ring 2 - FCP no buffers needed */ 2246 2247 return 0; 2248 } 2249 2250 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2251 2252 /** 2253 * lpfc_sha_init - Set up initial array of hash table entries 2254 * @HashResultPointer: pointer to an array as hash table. 2255 * 2256 * This routine sets up the initial values to the array of hash table entries 2257 * for the LC HBAs. 2258 **/ 2259 static void 2260 lpfc_sha_init(uint32_t * HashResultPointer) 2261 { 2262 HashResultPointer[0] = 0x67452301; 2263 HashResultPointer[1] = 0xEFCDAB89; 2264 HashResultPointer[2] = 0x98BADCFE; 2265 HashResultPointer[3] = 0x10325476; 2266 HashResultPointer[4] = 0xC3D2E1F0; 2267 } 2268 2269 /** 2270 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2271 * @HashResultPointer: pointer to an initial/result hash table. 2272 * @HashWorkingPointer: pointer to an working hash table. 2273 * 2274 * This routine iterates an initial hash table pointed by @HashResultPointer 2275 * with the values from the working hash table pointeed by @HashWorkingPointer. 2276 * The results are putting back to the initial hash table, returned through 2277 * the @HashResultPointer as the result hash table. 2278 **/ 2279 static void 2280 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2281 { 2282 int t; 2283 uint32_t TEMP; 2284 uint32_t A, B, C, D, E; 2285 t = 16; 2286 do { 2287 HashWorkingPointer[t] = 2288 S(1, 2289 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2290 8] ^ 2291 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2292 } while (++t <= 79); 2293 t = 0; 2294 A = HashResultPointer[0]; 2295 B = HashResultPointer[1]; 2296 C = HashResultPointer[2]; 2297 D = HashResultPointer[3]; 2298 E = HashResultPointer[4]; 2299 2300 do { 2301 if (t < 20) { 2302 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2303 } else if (t < 40) { 2304 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2305 } else if (t < 60) { 2306 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2307 } else { 2308 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2309 } 2310 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2311 E = D; 2312 D = C; 2313 C = S(30, B); 2314 B = A; 2315 A = TEMP; 2316 } while (++t <= 79); 2317 2318 HashResultPointer[0] += A; 2319 HashResultPointer[1] += B; 2320 HashResultPointer[2] += C; 2321 HashResultPointer[3] += D; 2322 HashResultPointer[4] += E; 2323 2324 } 2325 2326 /** 2327 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2328 * @RandomChallenge: pointer to the entry of host challenge random number array. 2329 * @HashWorking: pointer to the entry of the working hash array. 2330 * 2331 * This routine calculates the working hash array referred by @HashWorking 2332 * from the challenge random numbers associated with the host, referred by 2333 * @RandomChallenge. The result is put into the entry of the working hash 2334 * array and returned by reference through @HashWorking. 2335 **/ 2336 static void 2337 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2338 { 2339 *HashWorking = (*RandomChallenge ^ *HashWorking); 2340 } 2341 2342 /** 2343 * lpfc_hba_init - Perform special handling for LC HBA initialization 2344 * @phba: pointer to lpfc hba data structure. 2345 * @hbainit: pointer to an array of unsigned 32-bit integers. 2346 * 2347 * This routine performs the special handling for LC HBA initialization. 2348 **/ 2349 void 2350 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2351 { 2352 int t; 2353 uint32_t *HashWorking; 2354 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2355 2356 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2357 if (!HashWorking) 2358 return; 2359 2360 HashWorking[0] = HashWorking[78] = *pwwnn++; 2361 HashWorking[1] = HashWorking[79] = *pwwnn; 2362 2363 for (t = 0; t < 7; t++) 2364 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2365 2366 lpfc_sha_init(hbainit); 2367 lpfc_sha_iterate(hbainit, HashWorking); 2368 kfree(HashWorking); 2369 } 2370 2371 /** 2372 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2373 * @vport: pointer to a virtual N_Port data structure. 2374 * 2375 * This routine performs the necessary cleanups before deleting the @vport. 2376 * It invokes the discovery state machine to perform necessary state 2377 * transitions and to release the ndlps associated with the @vport. Note, 2378 * the physical port is treated as @vport 0. 2379 **/ 2380 void 2381 lpfc_cleanup(struct lpfc_vport *vport) 2382 { 2383 struct lpfc_hba *phba = vport->phba; 2384 struct lpfc_nodelist *ndlp, *next_ndlp; 2385 int i = 0; 2386 2387 if (phba->link_state > LPFC_LINK_DOWN) 2388 lpfc_port_link_failure(vport); 2389 2390 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2391 if (!NLP_CHK_NODE_ACT(ndlp)) { 2392 ndlp = lpfc_enable_node(vport, ndlp, 2393 NLP_STE_UNUSED_NODE); 2394 if (!ndlp) 2395 continue; 2396 spin_lock_irq(&phba->ndlp_lock); 2397 NLP_SET_FREE_REQ(ndlp); 2398 spin_unlock_irq(&phba->ndlp_lock); 2399 /* Trigger the release of the ndlp memory */ 2400 lpfc_nlp_put(ndlp); 2401 continue; 2402 } 2403 spin_lock_irq(&phba->ndlp_lock); 2404 if (NLP_CHK_FREE_REQ(ndlp)) { 2405 /* The ndlp should not be in memory free mode already */ 2406 spin_unlock_irq(&phba->ndlp_lock); 2407 continue; 2408 } else 2409 /* Indicate request for freeing ndlp memory */ 2410 NLP_SET_FREE_REQ(ndlp); 2411 spin_unlock_irq(&phba->ndlp_lock); 2412 2413 if (vport->port_type != LPFC_PHYSICAL_PORT && 2414 ndlp->nlp_DID == Fabric_DID) { 2415 /* Just free up ndlp with Fabric_DID for vports */ 2416 lpfc_nlp_put(ndlp); 2417 continue; 2418 } 2419 2420 /* take care of nodes in unused state before the state 2421 * machine taking action. 2422 */ 2423 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 2424 lpfc_nlp_put(ndlp); 2425 continue; 2426 } 2427 2428 if (ndlp->nlp_type & NLP_FABRIC) 2429 lpfc_disc_state_machine(vport, ndlp, NULL, 2430 NLP_EVT_DEVICE_RECOVERY); 2431 2432 lpfc_disc_state_machine(vport, ndlp, NULL, 2433 NLP_EVT_DEVICE_RM); 2434 } 2435 2436 /* At this point, ALL ndlp's should be gone 2437 * because of the previous NLP_EVT_DEVICE_RM. 2438 * Lets wait for this to happen, if needed. 2439 */ 2440 while (!list_empty(&vport->fc_nodes)) { 2441 if (i++ > 3000) { 2442 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2443 "0233 Nodelist not empty\n"); 2444 list_for_each_entry_safe(ndlp, next_ndlp, 2445 &vport->fc_nodes, nlp_listp) { 2446 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2447 LOG_NODE, 2448 "0282 did:x%x ndlp:x%p " 2449 "usgmap:x%x refcnt:%d\n", 2450 ndlp->nlp_DID, (void *)ndlp, 2451 ndlp->nlp_usg_map, 2452 atomic_read( 2453 &ndlp->kref.refcount)); 2454 } 2455 break; 2456 } 2457 2458 /* Wait for any activity on ndlps to settle */ 2459 msleep(10); 2460 } 2461 lpfc_cleanup_vports_rrqs(vport, NULL); 2462 } 2463 2464 /** 2465 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2466 * @vport: pointer to a virtual N_Port data structure. 2467 * 2468 * This routine stops all the timers associated with a @vport. This function 2469 * is invoked before disabling or deleting a @vport. Note that the physical 2470 * port is treated as @vport 0. 2471 **/ 2472 void 2473 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2474 { 2475 del_timer_sync(&vport->els_tmofunc); 2476 del_timer_sync(&vport->fc_fdmitmo); 2477 del_timer_sync(&vport->delayed_disc_tmo); 2478 lpfc_can_disctmo(vport); 2479 return; 2480 } 2481 2482 /** 2483 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2484 * @phba: pointer to lpfc hba data structure. 2485 * 2486 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2487 * caller of this routine should already hold the host lock. 2488 **/ 2489 void 2490 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2491 { 2492 /* Clear pending FCF rediscovery wait flag */ 2493 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2494 2495 /* Now, try to stop the timer */ 2496 del_timer(&phba->fcf.redisc_wait); 2497 } 2498 2499 /** 2500 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2501 * @phba: pointer to lpfc hba data structure. 2502 * 2503 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2504 * checks whether the FCF rediscovery wait timer is pending with the host 2505 * lock held before proceeding with disabling the timer and clearing the 2506 * wait timer pendig flag. 2507 **/ 2508 void 2509 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2510 { 2511 spin_lock_irq(&phba->hbalock); 2512 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2513 /* FCF rediscovery timer already fired or stopped */ 2514 spin_unlock_irq(&phba->hbalock); 2515 return; 2516 } 2517 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2518 /* Clear failover in progress flags */ 2519 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2520 spin_unlock_irq(&phba->hbalock); 2521 } 2522 2523 /** 2524 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2525 * @phba: pointer to lpfc hba data structure. 2526 * 2527 * This routine stops all the timers associated with a HBA. This function is 2528 * invoked before either putting a HBA offline or unloading the driver. 2529 **/ 2530 void 2531 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2532 { 2533 lpfc_stop_vport_timers(phba->pport); 2534 del_timer_sync(&phba->sli.mbox_tmo); 2535 del_timer_sync(&phba->fabric_block_timer); 2536 del_timer_sync(&phba->eratt_poll); 2537 del_timer_sync(&phba->hb_tmofunc); 2538 if (phba->sli_rev == LPFC_SLI_REV4) { 2539 del_timer_sync(&phba->rrq_tmr); 2540 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2541 } 2542 phba->hb_outstanding = 0; 2543 2544 switch (phba->pci_dev_grp) { 2545 case LPFC_PCI_DEV_LP: 2546 /* Stop any LightPulse device specific driver timers */ 2547 del_timer_sync(&phba->fcp_poll_timer); 2548 break; 2549 case LPFC_PCI_DEV_OC: 2550 /* Stop any OneConnect device sepcific driver timers */ 2551 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2552 break; 2553 default: 2554 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2555 "0297 Invalid device group (x%x)\n", 2556 phba->pci_dev_grp); 2557 break; 2558 } 2559 return; 2560 } 2561 2562 /** 2563 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2564 * @phba: pointer to lpfc hba data structure. 2565 * 2566 * This routine marks a HBA's management interface as blocked. Once the HBA's 2567 * management interface is marked as blocked, all the user space access to 2568 * the HBA, whether they are from sysfs interface or libdfc interface will 2569 * all be blocked. The HBA is set to block the management interface when the 2570 * driver prepares the HBA interface for online or offline. 2571 **/ 2572 static void 2573 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action) 2574 { 2575 unsigned long iflag; 2576 uint8_t actcmd = MBX_HEARTBEAT; 2577 unsigned long timeout; 2578 2579 spin_lock_irqsave(&phba->hbalock, iflag); 2580 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2581 spin_unlock_irqrestore(&phba->hbalock, iflag); 2582 if (mbx_action == LPFC_MBX_NO_WAIT) 2583 return; 2584 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2585 spin_lock_irqsave(&phba->hbalock, iflag); 2586 if (phba->sli.mbox_active) { 2587 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2588 /* Determine how long we might wait for the active mailbox 2589 * command to be gracefully completed by firmware. 2590 */ 2591 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2592 phba->sli.mbox_active) * 1000) + jiffies; 2593 } 2594 spin_unlock_irqrestore(&phba->hbalock, iflag); 2595 2596 /* Wait for the outstnading mailbox command to complete */ 2597 while (phba->sli.mbox_active) { 2598 /* Check active mailbox complete status every 2ms */ 2599 msleep(2); 2600 if (time_after(jiffies, timeout)) { 2601 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2602 "2813 Mgmt IO is Blocked %x " 2603 "- mbox cmd %x still active\n", 2604 phba->sli.sli_flag, actcmd); 2605 break; 2606 } 2607 } 2608 } 2609 2610 /** 2611 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 2612 * @phba: pointer to lpfc hba data structure. 2613 * 2614 * Allocate RPIs for all active remote nodes. This is needed whenever 2615 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 2616 * is to fixup the temporary rpi assignments. 2617 **/ 2618 void 2619 lpfc_sli4_node_prep(struct lpfc_hba *phba) 2620 { 2621 struct lpfc_nodelist *ndlp, *next_ndlp; 2622 struct lpfc_vport **vports; 2623 int i; 2624 2625 if (phba->sli_rev != LPFC_SLI_REV4) 2626 return; 2627 2628 vports = lpfc_create_vport_work_array(phba); 2629 if (vports != NULL) { 2630 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2631 if (vports[i]->load_flag & FC_UNLOADING) 2632 continue; 2633 2634 list_for_each_entry_safe(ndlp, next_ndlp, 2635 &vports[i]->fc_nodes, 2636 nlp_listp) { 2637 if (NLP_CHK_NODE_ACT(ndlp)) 2638 ndlp->nlp_rpi = 2639 lpfc_sli4_alloc_rpi(phba); 2640 } 2641 } 2642 } 2643 lpfc_destroy_vport_work_array(phba, vports); 2644 } 2645 2646 /** 2647 * lpfc_online - Initialize and bring a HBA online 2648 * @phba: pointer to lpfc hba data structure. 2649 * 2650 * This routine initializes the HBA and brings a HBA online. During this 2651 * process, the management interface is blocked to prevent user space access 2652 * to the HBA interfering with the driver initialization. 2653 * 2654 * Return codes 2655 * 0 - successful 2656 * 1 - failed 2657 **/ 2658 int 2659 lpfc_online(struct lpfc_hba *phba) 2660 { 2661 struct lpfc_vport *vport; 2662 struct lpfc_vport **vports; 2663 int i; 2664 bool vpis_cleared = false; 2665 2666 if (!phba) 2667 return 0; 2668 vport = phba->pport; 2669 2670 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2671 return 0; 2672 2673 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2674 "0458 Bring Adapter online\n"); 2675 2676 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 2677 2678 if (!lpfc_sli_queue_setup(phba)) { 2679 lpfc_unblock_mgmt_io(phba); 2680 return 1; 2681 } 2682 2683 if (phba->sli_rev == LPFC_SLI_REV4) { 2684 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2685 lpfc_unblock_mgmt_io(phba); 2686 return 1; 2687 } 2688 spin_lock_irq(&phba->hbalock); 2689 if (!phba->sli4_hba.max_cfg_param.vpi_used) 2690 vpis_cleared = true; 2691 spin_unlock_irq(&phba->hbalock); 2692 } else { 2693 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2694 lpfc_unblock_mgmt_io(phba); 2695 return 1; 2696 } 2697 } 2698 2699 vports = lpfc_create_vport_work_array(phba); 2700 if (vports != NULL) 2701 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2702 struct Scsi_Host *shost; 2703 shost = lpfc_shost_from_vport(vports[i]); 2704 spin_lock_irq(shost->host_lock); 2705 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2706 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2707 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2708 if (phba->sli_rev == LPFC_SLI_REV4) { 2709 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2710 if ((vpis_cleared) && 2711 (vports[i]->port_type != 2712 LPFC_PHYSICAL_PORT)) 2713 vports[i]->vpi = 0; 2714 } 2715 spin_unlock_irq(shost->host_lock); 2716 } 2717 lpfc_destroy_vport_work_array(phba, vports); 2718 2719 lpfc_unblock_mgmt_io(phba); 2720 return 0; 2721 } 2722 2723 /** 2724 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2725 * @phba: pointer to lpfc hba data structure. 2726 * 2727 * This routine marks a HBA's management interface as not blocked. Once the 2728 * HBA's management interface is marked as not blocked, all the user space 2729 * access to the HBA, whether they are from sysfs interface or libdfc 2730 * interface will be allowed. The HBA is set to block the management interface 2731 * when the driver prepares the HBA interface for online or offline and then 2732 * set to unblock the management interface afterwards. 2733 **/ 2734 void 2735 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2736 { 2737 unsigned long iflag; 2738 2739 spin_lock_irqsave(&phba->hbalock, iflag); 2740 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2741 spin_unlock_irqrestore(&phba->hbalock, iflag); 2742 } 2743 2744 /** 2745 * lpfc_offline_prep - Prepare a HBA to be brought offline 2746 * @phba: pointer to lpfc hba data structure. 2747 * 2748 * This routine is invoked to prepare a HBA to be brought offline. It performs 2749 * unregistration login to all the nodes on all vports and flushes the mailbox 2750 * queue to make it ready to be brought offline. 2751 **/ 2752 void 2753 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) 2754 { 2755 struct lpfc_vport *vport = phba->pport; 2756 struct lpfc_nodelist *ndlp, *next_ndlp; 2757 struct lpfc_vport **vports; 2758 struct Scsi_Host *shost; 2759 int i; 2760 2761 if (vport->fc_flag & FC_OFFLINE_MODE) 2762 return; 2763 2764 lpfc_block_mgmt_io(phba, mbx_action); 2765 2766 lpfc_linkdown(phba); 2767 2768 /* Issue an unreg_login to all nodes on all vports */ 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 shost = lpfc_shost_from_vport(vports[i]); 2775 spin_lock_irq(shost->host_lock); 2776 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2777 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2778 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2779 spin_unlock_irq(shost->host_lock); 2780 2781 shost = lpfc_shost_from_vport(vports[i]); 2782 list_for_each_entry_safe(ndlp, next_ndlp, 2783 &vports[i]->fc_nodes, 2784 nlp_listp) { 2785 if (!NLP_CHK_NODE_ACT(ndlp)) 2786 continue; 2787 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2788 continue; 2789 if (ndlp->nlp_type & NLP_FABRIC) { 2790 lpfc_disc_state_machine(vports[i], ndlp, 2791 NULL, NLP_EVT_DEVICE_RECOVERY); 2792 lpfc_disc_state_machine(vports[i], ndlp, 2793 NULL, NLP_EVT_DEVICE_RM); 2794 } 2795 spin_lock_irq(shost->host_lock); 2796 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2797 spin_unlock_irq(shost->host_lock); 2798 /* 2799 * Whenever an SLI4 port goes offline, free the 2800 * RPI. Get a new RPI when the adapter port 2801 * comes back online. 2802 */ 2803 if (phba->sli_rev == LPFC_SLI_REV4) 2804 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 2805 lpfc_unreg_rpi(vports[i], ndlp); 2806 } 2807 } 2808 } 2809 lpfc_destroy_vport_work_array(phba, vports); 2810 2811 lpfc_sli_mbox_sys_shutdown(phba, mbx_action); 2812 } 2813 2814 /** 2815 * lpfc_offline - Bring a HBA offline 2816 * @phba: pointer to lpfc hba data structure. 2817 * 2818 * This routine actually brings a HBA offline. It stops all the timers 2819 * associated with the HBA, brings down the SLI layer, and eventually 2820 * marks the HBA as in offline state for the upper layer protocol. 2821 **/ 2822 void 2823 lpfc_offline(struct lpfc_hba *phba) 2824 { 2825 struct Scsi_Host *shost; 2826 struct lpfc_vport **vports; 2827 int i; 2828 2829 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2830 return; 2831 2832 /* stop port and all timers associated with this hba */ 2833 lpfc_stop_port(phba); 2834 vports = lpfc_create_vport_work_array(phba); 2835 if (vports != NULL) 2836 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2837 lpfc_stop_vport_timers(vports[i]); 2838 lpfc_destroy_vport_work_array(phba, vports); 2839 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2840 "0460 Bring Adapter offline\n"); 2841 /* Bring down the SLI Layer and cleanup. The HBA is offline 2842 now. */ 2843 lpfc_sli_hba_down(phba); 2844 spin_lock_irq(&phba->hbalock); 2845 phba->work_ha = 0; 2846 spin_unlock_irq(&phba->hbalock); 2847 vports = lpfc_create_vport_work_array(phba); 2848 if (vports != NULL) 2849 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2850 shost = lpfc_shost_from_vport(vports[i]); 2851 spin_lock_irq(shost->host_lock); 2852 vports[i]->work_port_events = 0; 2853 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2854 spin_unlock_irq(shost->host_lock); 2855 } 2856 lpfc_destroy_vport_work_array(phba, vports); 2857 } 2858 2859 /** 2860 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2861 * @phba: pointer to lpfc hba data structure. 2862 * 2863 * This routine is to free all the SCSI buffers and IOCBs from the driver 2864 * list back to kernel. It is called from lpfc_pci_remove_one to free 2865 * the internal resources before the device is removed from the system. 2866 **/ 2867 static void 2868 lpfc_scsi_free(struct lpfc_hba *phba) 2869 { 2870 struct lpfc_scsi_buf *sb, *sb_next; 2871 struct lpfc_iocbq *io, *io_next; 2872 2873 spin_lock_irq(&phba->hbalock); 2874 2875 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2876 2877 spin_lock(&phba->scsi_buf_list_put_lock); 2878 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put, 2879 list) { 2880 list_del(&sb->list); 2881 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2882 sb->dma_handle); 2883 kfree(sb); 2884 phba->total_scsi_bufs--; 2885 } 2886 spin_unlock(&phba->scsi_buf_list_put_lock); 2887 2888 spin_lock(&phba->scsi_buf_list_get_lock); 2889 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get, 2890 list) { 2891 list_del(&sb->list); 2892 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2893 sb->dma_handle); 2894 kfree(sb); 2895 phba->total_scsi_bufs--; 2896 } 2897 spin_unlock(&phba->scsi_buf_list_get_lock); 2898 2899 /* Release all the lpfc_iocbq entries maintained by this host. */ 2900 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2901 list_del(&io->list); 2902 kfree(io); 2903 phba->total_iocbq_bufs--; 2904 } 2905 2906 spin_unlock_irq(&phba->hbalock); 2907 } 2908 2909 /** 2910 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping 2911 * @phba: pointer to lpfc hba data structure. 2912 * 2913 * This routine first calculates the sizes of the current els and allocated 2914 * scsi sgl lists, and then goes through all sgls to updates the physical 2915 * XRIs assigned due to port function reset. During port initialization, the 2916 * current els and allocated scsi sgl lists are 0s. 2917 * 2918 * Return codes 2919 * 0 - successful (for now, it always returns 0) 2920 **/ 2921 int 2922 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba) 2923 { 2924 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 2925 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL; 2926 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt; 2927 LIST_HEAD(els_sgl_list); 2928 LIST_HEAD(scsi_sgl_list); 2929 int rc; 2930 2931 /* 2932 * update on pci function's els xri-sgl list 2933 */ 2934 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 2935 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 2936 /* els xri-sgl expanded */ 2937 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 2938 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2939 "3157 ELS xri-sgl count increased from " 2940 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 2941 els_xri_cnt); 2942 /* allocate the additional els sgls */ 2943 for (i = 0; i < xri_cnt; i++) { 2944 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 2945 GFP_KERNEL); 2946 if (sglq_entry == NULL) { 2947 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2948 "2562 Failure to allocate an " 2949 "ELS sgl entry:%d\n", i); 2950 rc = -ENOMEM; 2951 goto out_free_mem; 2952 } 2953 sglq_entry->buff_type = GEN_BUFF_TYPE; 2954 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 2955 &sglq_entry->phys); 2956 if (sglq_entry->virt == NULL) { 2957 kfree(sglq_entry); 2958 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2959 "2563 Failure to allocate an " 2960 "ELS mbuf:%d\n", i); 2961 rc = -ENOMEM; 2962 goto out_free_mem; 2963 } 2964 sglq_entry->sgl = sglq_entry->virt; 2965 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 2966 sglq_entry->state = SGL_FREED; 2967 list_add_tail(&sglq_entry->list, &els_sgl_list); 2968 } 2969 spin_lock_irq(&phba->hbalock); 2970 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 2971 spin_unlock_irq(&phba->hbalock); 2972 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 2973 /* els xri-sgl shrinked */ 2974 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 2975 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2976 "3158 ELS xri-sgl count decreased from " 2977 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 2978 els_xri_cnt); 2979 spin_lock_irq(&phba->hbalock); 2980 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list); 2981 spin_unlock_irq(&phba->hbalock); 2982 /* release extra els sgls from list */ 2983 for (i = 0; i < xri_cnt; i++) { 2984 list_remove_head(&els_sgl_list, 2985 sglq_entry, struct lpfc_sglq, list); 2986 if (sglq_entry) { 2987 lpfc_mbuf_free(phba, sglq_entry->virt, 2988 sglq_entry->phys); 2989 kfree(sglq_entry); 2990 } 2991 } 2992 spin_lock_irq(&phba->hbalock); 2993 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 2994 spin_unlock_irq(&phba->hbalock); 2995 } else 2996 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2997 "3163 ELS xri-sgl count unchanged: %d\n", 2998 els_xri_cnt); 2999 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 3000 3001 /* update xris to els sgls on the list */ 3002 sglq_entry = NULL; 3003 sglq_entry_next = NULL; 3004 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3005 &phba->sli4_hba.lpfc_sgl_list, list) { 3006 lxri = lpfc_sli4_next_xritag(phba); 3007 if (lxri == NO_XRI) { 3008 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3009 "2400 Failed to allocate xri for " 3010 "ELS sgl\n"); 3011 rc = -ENOMEM; 3012 goto out_free_mem; 3013 } 3014 sglq_entry->sli4_lxritag = lxri; 3015 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3016 } 3017 3018 /* 3019 * update on pci function's allocated scsi xri-sgl list 3020 */ 3021 phba->total_scsi_bufs = 0; 3022 3023 /* maximum number of xris available for scsi buffers */ 3024 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - 3025 els_xri_cnt; 3026 3027 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3028 "2401 Current allocated SCSI xri-sgl count:%d, " 3029 "maximum SCSI xri count:%d\n", 3030 phba->sli4_hba.scsi_xri_cnt, 3031 phba->sli4_hba.scsi_xri_max); 3032 3033 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3034 spin_lock(&phba->scsi_buf_list_put_lock); 3035 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list); 3036 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list); 3037 spin_unlock(&phba->scsi_buf_list_put_lock); 3038 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3039 3040 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { 3041 /* max scsi xri shrinked below the allocated scsi buffers */ 3042 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - 3043 phba->sli4_hba.scsi_xri_max; 3044 /* release the extra allocated scsi buffers */ 3045 for (i = 0; i < scsi_xri_cnt; i++) { 3046 list_remove_head(&scsi_sgl_list, psb, 3047 struct lpfc_scsi_buf, list); 3048 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data, 3049 psb->dma_handle); 3050 kfree(psb); 3051 } 3052 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3053 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; 3054 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3055 } 3056 3057 /* update xris associated to remaining allocated scsi buffers */ 3058 psb = NULL; 3059 psb_next = NULL; 3060 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { 3061 lxri = lpfc_sli4_next_xritag(phba); 3062 if (lxri == NO_XRI) { 3063 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3064 "2560 Failed to allocate xri for " 3065 "scsi buffer\n"); 3066 rc = -ENOMEM; 3067 goto out_free_mem; 3068 } 3069 psb->cur_iocbq.sli4_lxritag = lxri; 3070 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3071 } 3072 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3073 spin_lock(&phba->scsi_buf_list_put_lock); 3074 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get); 3075 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 3076 spin_unlock(&phba->scsi_buf_list_put_lock); 3077 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3078 3079 return 0; 3080 3081 out_free_mem: 3082 lpfc_free_els_sgl_list(phba); 3083 lpfc_scsi_free(phba); 3084 return rc; 3085 } 3086 3087 /** 3088 * lpfc_create_port - Create an FC port 3089 * @phba: pointer to lpfc hba data structure. 3090 * @instance: a unique integer ID to this FC port. 3091 * @dev: pointer to the device data structure. 3092 * 3093 * This routine creates a FC port for the upper layer protocol. The FC port 3094 * can be created on top of either a physical port or a virtual port provided 3095 * by the HBA. This routine also allocates a SCSI host data structure (shost) 3096 * and associates the FC port created before adding the shost into the SCSI 3097 * layer. 3098 * 3099 * Return codes 3100 * @vport - pointer to the virtual N_Port data structure. 3101 * NULL - port create failed. 3102 **/ 3103 struct lpfc_vport * 3104 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 3105 { 3106 struct lpfc_vport *vport; 3107 struct Scsi_Host *shost; 3108 int error = 0; 3109 3110 if (dev != &phba->pcidev->dev) 3111 shost = scsi_host_alloc(&lpfc_vport_template, 3112 sizeof(struct lpfc_vport)); 3113 else 3114 shost = scsi_host_alloc(&lpfc_template, 3115 sizeof(struct lpfc_vport)); 3116 if (!shost) 3117 goto out; 3118 3119 vport = (struct lpfc_vport *) shost->hostdata; 3120 vport->phba = phba; 3121 vport->load_flag |= FC_LOADING; 3122 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3123 vport->fc_rscn_flush = 0; 3124 3125 lpfc_get_vport_cfgparam(vport); 3126 shost->unique_id = instance; 3127 shost->max_id = LPFC_MAX_TARGET; 3128 shost->max_lun = vport->cfg_max_luns; 3129 shost->this_id = -1; 3130 shost->max_cmd_len = 16; 3131 if (phba->sli_rev == LPFC_SLI_REV4) { 3132 shost->dma_boundary = 3133 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3134 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 3135 } 3136 3137 /* 3138 * Set initial can_queue value since 0 is no longer supported and 3139 * scsi_add_host will fail. This will be adjusted later based on the 3140 * max xri value determined in hba setup. 3141 */ 3142 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3143 if (dev != &phba->pcidev->dev) { 3144 shost->transportt = lpfc_vport_transport_template; 3145 vport->port_type = LPFC_NPIV_PORT; 3146 } else { 3147 shost->transportt = lpfc_transport_template; 3148 vport->port_type = LPFC_PHYSICAL_PORT; 3149 } 3150 3151 /* Initialize all internally managed lists. */ 3152 INIT_LIST_HEAD(&vport->fc_nodes); 3153 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3154 spin_lock_init(&vport->work_port_lock); 3155 3156 init_timer(&vport->fc_disctmo); 3157 vport->fc_disctmo.function = lpfc_disc_timeout; 3158 vport->fc_disctmo.data = (unsigned long)vport; 3159 3160 init_timer(&vport->fc_fdmitmo); 3161 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 3162 vport->fc_fdmitmo.data = (unsigned long)vport; 3163 3164 init_timer(&vport->els_tmofunc); 3165 vport->els_tmofunc.function = lpfc_els_timeout; 3166 vport->els_tmofunc.data = (unsigned long)vport; 3167 3168 init_timer(&vport->delayed_disc_tmo); 3169 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; 3170 vport->delayed_disc_tmo.data = (unsigned long)vport; 3171 3172 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3173 if (error) 3174 goto out_put_shost; 3175 3176 spin_lock_irq(&phba->hbalock); 3177 list_add_tail(&vport->listentry, &phba->port_list); 3178 spin_unlock_irq(&phba->hbalock); 3179 return vport; 3180 3181 out_put_shost: 3182 scsi_host_put(shost); 3183 out: 3184 return NULL; 3185 } 3186 3187 /** 3188 * destroy_port - destroy an FC port 3189 * @vport: pointer to an lpfc virtual N_Port data structure. 3190 * 3191 * This routine destroys a FC port from the upper layer protocol. All the 3192 * resources associated with the port are released. 3193 **/ 3194 void 3195 destroy_port(struct lpfc_vport *vport) 3196 { 3197 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3198 struct lpfc_hba *phba = vport->phba; 3199 3200 lpfc_debugfs_terminate(vport); 3201 fc_remove_host(shost); 3202 scsi_remove_host(shost); 3203 3204 spin_lock_irq(&phba->hbalock); 3205 list_del_init(&vport->listentry); 3206 spin_unlock_irq(&phba->hbalock); 3207 3208 lpfc_cleanup(vport); 3209 return; 3210 } 3211 3212 /** 3213 * lpfc_get_instance - Get a unique integer ID 3214 * 3215 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 3216 * uses the kernel idr facility to perform the task. 3217 * 3218 * Return codes: 3219 * instance - a unique integer ID allocated as the new instance. 3220 * -1 - lpfc get instance failed. 3221 **/ 3222 int 3223 lpfc_get_instance(void) 3224 { 3225 int ret; 3226 3227 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); 3228 return ret < 0 ? -1 : ret; 3229 } 3230 3231 /** 3232 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 3233 * @shost: pointer to SCSI host data structure. 3234 * @time: elapsed time of the scan in jiffies. 3235 * 3236 * This routine is called by the SCSI layer with a SCSI host to determine 3237 * whether the scan host is finished. 3238 * 3239 * Note: there is no scan_start function as adapter initialization will have 3240 * asynchronously kicked off the link initialization. 3241 * 3242 * Return codes 3243 * 0 - SCSI host scan is not over yet. 3244 * 1 - SCSI host scan is over. 3245 **/ 3246 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 3247 { 3248 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3249 struct lpfc_hba *phba = vport->phba; 3250 int stat = 0; 3251 3252 spin_lock_irq(shost->host_lock); 3253 3254 if (vport->load_flag & FC_UNLOADING) { 3255 stat = 1; 3256 goto finished; 3257 } 3258 if (time >= msecs_to_jiffies(30 * 1000)) { 3259 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3260 "0461 Scanning longer than 30 " 3261 "seconds. Continuing initialization\n"); 3262 stat = 1; 3263 goto finished; 3264 } 3265 if (time >= msecs_to_jiffies(15 * 1000) && 3266 phba->link_state <= LPFC_LINK_DOWN) { 3267 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3268 "0465 Link down longer than 15 " 3269 "seconds. Continuing initialization\n"); 3270 stat = 1; 3271 goto finished; 3272 } 3273 3274 if (vport->port_state != LPFC_VPORT_READY) 3275 goto finished; 3276 if (vport->num_disc_nodes || vport->fc_prli_sent) 3277 goto finished; 3278 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000)) 3279 goto finished; 3280 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 3281 goto finished; 3282 3283 stat = 1; 3284 3285 finished: 3286 spin_unlock_irq(shost->host_lock); 3287 return stat; 3288 } 3289 3290 /** 3291 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 3292 * @shost: pointer to SCSI host data structure. 3293 * 3294 * This routine initializes a given SCSI host attributes on a FC port. The 3295 * SCSI host can be either on top of a physical port or a virtual port. 3296 **/ 3297 void lpfc_host_attrib_init(struct Scsi_Host *shost) 3298 { 3299 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3300 struct lpfc_hba *phba = vport->phba; 3301 /* 3302 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 3303 */ 3304 3305 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 3306 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3307 fc_host_supported_classes(shost) = FC_COS_CLASS3; 3308 3309 memset(fc_host_supported_fc4s(shost), 0, 3310 sizeof(fc_host_supported_fc4s(shost))); 3311 fc_host_supported_fc4s(shost)[2] = 1; 3312 fc_host_supported_fc4s(shost)[7] = 1; 3313 3314 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 3315 sizeof fc_host_symbolic_name(shost)); 3316 3317 fc_host_supported_speeds(shost) = 0; 3318 if (phba->lmt & LMT_16Gb) 3319 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 3320 if (phba->lmt & LMT_10Gb) 3321 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 3322 if (phba->lmt & LMT_8Gb) 3323 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 3324 if (phba->lmt & LMT_4Gb) 3325 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 3326 if (phba->lmt & LMT_2Gb) 3327 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 3328 if (phba->lmt & LMT_1Gb) 3329 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 3330 3331 fc_host_maxframe_size(shost) = 3332 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 3333 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 3334 3335 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 3336 3337 /* This value is also unchanging */ 3338 memset(fc_host_active_fc4s(shost), 0, 3339 sizeof(fc_host_active_fc4s(shost))); 3340 fc_host_active_fc4s(shost)[2] = 1; 3341 fc_host_active_fc4s(shost)[7] = 1; 3342 3343 fc_host_max_npiv_vports(shost) = phba->max_vpi; 3344 spin_lock_irq(shost->host_lock); 3345 vport->load_flag &= ~FC_LOADING; 3346 spin_unlock_irq(shost->host_lock); 3347 } 3348 3349 /** 3350 * lpfc_stop_port_s3 - Stop SLI3 device port 3351 * @phba: pointer to lpfc hba data structure. 3352 * 3353 * This routine is invoked to stop an SLI3 device port, it stops the device 3354 * from generating interrupts and stops the device driver's timers for the 3355 * device. 3356 **/ 3357 static void 3358 lpfc_stop_port_s3(struct lpfc_hba *phba) 3359 { 3360 /* Clear all interrupt enable conditions */ 3361 writel(0, phba->HCregaddr); 3362 readl(phba->HCregaddr); /* flush */ 3363 /* Clear all pending interrupts */ 3364 writel(0xffffffff, phba->HAregaddr); 3365 readl(phba->HAregaddr); /* flush */ 3366 3367 /* Reset some HBA SLI setup states */ 3368 lpfc_stop_hba_timers(phba); 3369 phba->pport->work_port_events = 0; 3370 } 3371 3372 /** 3373 * lpfc_stop_port_s4 - Stop SLI4 device port 3374 * @phba: pointer to lpfc hba data structure. 3375 * 3376 * This routine is invoked to stop an SLI4 device port, it stops the device 3377 * from generating interrupts and stops the device driver's timers for the 3378 * device. 3379 **/ 3380 static void 3381 lpfc_stop_port_s4(struct lpfc_hba *phba) 3382 { 3383 /* Reset some HBA SLI4 setup states */ 3384 lpfc_stop_hba_timers(phba); 3385 phba->pport->work_port_events = 0; 3386 phba->sli4_hba.intr_enable = 0; 3387 } 3388 3389 /** 3390 * lpfc_stop_port - Wrapper function for stopping hba port 3391 * @phba: Pointer to HBA context object. 3392 * 3393 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 3394 * the API jump table function pointer from the lpfc_hba struct. 3395 **/ 3396 void 3397 lpfc_stop_port(struct lpfc_hba *phba) 3398 { 3399 phba->lpfc_stop_port(phba); 3400 } 3401 3402 /** 3403 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 3404 * @phba: Pointer to hba for which this call is being executed. 3405 * 3406 * This routine starts the timer waiting for the FCF rediscovery to complete. 3407 **/ 3408 void 3409 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 3410 { 3411 unsigned long fcf_redisc_wait_tmo = 3412 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 3413 /* Start fcf rediscovery wait period timer */ 3414 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 3415 spin_lock_irq(&phba->hbalock); 3416 /* Allow action to new fcf asynchronous event */ 3417 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 3418 /* Mark the FCF rediscovery pending state */ 3419 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 3420 spin_unlock_irq(&phba->hbalock); 3421 } 3422 3423 /** 3424 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 3425 * @ptr: Map to lpfc_hba data structure pointer. 3426 * 3427 * This routine is invoked when waiting for FCF table rediscover has been 3428 * timed out. If new FCF record(s) has (have) been discovered during the 3429 * wait period, a new FCF event shall be added to the FCOE async event 3430 * list, and then worker thread shall be waked up for processing from the 3431 * worker thread context. 3432 **/ 3433 void 3434 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 3435 { 3436 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 3437 3438 /* Don't send FCF rediscovery event if timer cancelled */ 3439 spin_lock_irq(&phba->hbalock); 3440 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 3441 spin_unlock_irq(&phba->hbalock); 3442 return; 3443 } 3444 /* Clear FCF rediscovery timer pending flag */ 3445 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 3446 /* FCF rediscovery event to worker thread */ 3447 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 3448 spin_unlock_irq(&phba->hbalock); 3449 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3450 "2776 FCF rediscover quiescent timer expired\n"); 3451 /* wake up worker thread */ 3452 lpfc_worker_wake_up(phba); 3453 } 3454 3455 /** 3456 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3457 * @phba: pointer to lpfc hba data structure. 3458 * @acqe_link: pointer to the async link completion queue entry. 3459 * 3460 * This routine is to parse the SLI4 link-attention link fault code and 3461 * translate it into the base driver's read link attention mailbox command 3462 * status. 3463 * 3464 * Return: Link-attention status in terms of base driver's coding. 3465 **/ 3466 static uint16_t 3467 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3468 struct lpfc_acqe_link *acqe_link) 3469 { 3470 uint16_t latt_fault; 3471 3472 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3473 case LPFC_ASYNC_LINK_FAULT_NONE: 3474 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3475 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3476 latt_fault = 0; 3477 break; 3478 default: 3479 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3480 "0398 Invalid link fault code: x%x\n", 3481 bf_get(lpfc_acqe_link_fault, acqe_link)); 3482 latt_fault = MBXERR_ERROR; 3483 break; 3484 } 3485 return latt_fault; 3486 } 3487 3488 /** 3489 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3490 * @phba: pointer to lpfc hba data structure. 3491 * @acqe_link: pointer to the async link completion queue entry. 3492 * 3493 * This routine is to parse the SLI4 link attention type and translate it 3494 * into the base driver's link attention type coding. 3495 * 3496 * Return: Link attention type in terms of base driver's coding. 3497 **/ 3498 static uint8_t 3499 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3500 struct lpfc_acqe_link *acqe_link) 3501 { 3502 uint8_t att_type; 3503 3504 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3505 case LPFC_ASYNC_LINK_STATUS_DOWN: 3506 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3507 att_type = LPFC_ATT_LINK_DOWN; 3508 break; 3509 case LPFC_ASYNC_LINK_STATUS_UP: 3510 /* Ignore physical link up events - wait for logical link up */ 3511 att_type = LPFC_ATT_RESERVED; 3512 break; 3513 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3514 att_type = LPFC_ATT_LINK_UP; 3515 break; 3516 default: 3517 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3518 "0399 Invalid link attention type: x%x\n", 3519 bf_get(lpfc_acqe_link_status, acqe_link)); 3520 att_type = LPFC_ATT_RESERVED; 3521 break; 3522 } 3523 return att_type; 3524 } 3525 3526 /** 3527 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3528 * @phba: pointer to lpfc hba data structure. 3529 * @acqe_link: pointer to the async link completion queue entry. 3530 * 3531 * This routine is to parse the SLI4 link-attention link speed and translate 3532 * it into the base driver's link-attention link speed coding. 3533 * 3534 * Return: Link-attention link speed in terms of base driver's coding. 3535 **/ 3536 static uint8_t 3537 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3538 struct lpfc_acqe_link *acqe_link) 3539 { 3540 uint8_t link_speed; 3541 3542 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3543 case LPFC_ASYNC_LINK_SPEED_ZERO: 3544 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3545 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3546 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3547 break; 3548 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3549 link_speed = LPFC_LINK_SPEED_1GHZ; 3550 break; 3551 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3552 link_speed = LPFC_LINK_SPEED_10GHZ; 3553 break; 3554 default: 3555 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3556 "0483 Invalid link-attention link speed: x%x\n", 3557 bf_get(lpfc_acqe_link_speed, acqe_link)); 3558 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3559 break; 3560 } 3561 return link_speed; 3562 } 3563 3564 /** 3565 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 3566 * @phba: pointer to lpfc hba data structure. 3567 * 3568 * This routine is to get an SLI3 FC port's link speed in Mbps. 3569 * 3570 * Return: link speed in terms of Mbps. 3571 **/ 3572 uint32_t 3573 lpfc_sli_port_speed_get(struct lpfc_hba *phba) 3574 { 3575 uint32_t link_speed; 3576 3577 if (!lpfc_is_link_up(phba)) 3578 return 0; 3579 3580 switch (phba->fc_linkspeed) { 3581 case LPFC_LINK_SPEED_1GHZ: 3582 link_speed = 1000; 3583 break; 3584 case LPFC_LINK_SPEED_2GHZ: 3585 link_speed = 2000; 3586 break; 3587 case LPFC_LINK_SPEED_4GHZ: 3588 link_speed = 4000; 3589 break; 3590 case LPFC_LINK_SPEED_8GHZ: 3591 link_speed = 8000; 3592 break; 3593 case LPFC_LINK_SPEED_10GHZ: 3594 link_speed = 10000; 3595 break; 3596 case LPFC_LINK_SPEED_16GHZ: 3597 link_speed = 16000; 3598 break; 3599 default: 3600 link_speed = 0; 3601 } 3602 return link_speed; 3603 } 3604 3605 /** 3606 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 3607 * @phba: pointer to lpfc hba data structure. 3608 * @evt_code: asynchronous event code. 3609 * @speed_code: asynchronous event link speed code. 3610 * 3611 * This routine is to parse the giving SLI4 async event link speed code into 3612 * value of Mbps for the link speed. 3613 * 3614 * Return: link speed in terms of Mbps. 3615 **/ 3616 static uint32_t 3617 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 3618 uint8_t speed_code) 3619 { 3620 uint32_t port_speed; 3621 3622 switch (evt_code) { 3623 case LPFC_TRAILER_CODE_LINK: 3624 switch (speed_code) { 3625 case LPFC_EVT_CODE_LINK_NO_LINK: 3626 port_speed = 0; 3627 break; 3628 case LPFC_EVT_CODE_LINK_10_MBIT: 3629 port_speed = 10; 3630 break; 3631 case LPFC_EVT_CODE_LINK_100_MBIT: 3632 port_speed = 100; 3633 break; 3634 case LPFC_EVT_CODE_LINK_1_GBIT: 3635 port_speed = 1000; 3636 break; 3637 case LPFC_EVT_CODE_LINK_10_GBIT: 3638 port_speed = 10000; 3639 break; 3640 default: 3641 port_speed = 0; 3642 } 3643 break; 3644 case LPFC_TRAILER_CODE_FC: 3645 switch (speed_code) { 3646 case LPFC_EVT_CODE_FC_NO_LINK: 3647 port_speed = 0; 3648 break; 3649 case LPFC_EVT_CODE_FC_1_GBAUD: 3650 port_speed = 1000; 3651 break; 3652 case LPFC_EVT_CODE_FC_2_GBAUD: 3653 port_speed = 2000; 3654 break; 3655 case LPFC_EVT_CODE_FC_4_GBAUD: 3656 port_speed = 4000; 3657 break; 3658 case LPFC_EVT_CODE_FC_8_GBAUD: 3659 port_speed = 8000; 3660 break; 3661 case LPFC_EVT_CODE_FC_10_GBAUD: 3662 port_speed = 10000; 3663 break; 3664 case LPFC_EVT_CODE_FC_16_GBAUD: 3665 port_speed = 16000; 3666 break; 3667 default: 3668 port_speed = 0; 3669 } 3670 break; 3671 default: 3672 port_speed = 0; 3673 } 3674 return port_speed; 3675 } 3676 3677 /** 3678 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 3679 * @phba: pointer to lpfc hba data structure. 3680 * @acqe_link: pointer to the async link completion queue entry. 3681 * 3682 * This routine is to handle the SLI4 asynchronous FCoE link event. 3683 **/ 3684 static void 3685 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3686 struct lpfc_acqe_link *acqe_link) 3687 { 3688 struct lpfc_dmabuf *mp; 3689 LPFC_MBOXQ_t *pmb; 3690 MAILBOX_t *mb; 3691 struct lpfc_mbx_read_top *la; 3692 uint8_t att_type; 3693 int rc; 3694 3695 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3696 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 3697 return; 3698 phba->fcoe_eventtag = acqe_link->event_tag; 3699 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3700 if (!pmb) { 3701 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3702 "0395 The mboxq allocation failed\n"); 3703 return; 3704 } 3705 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3706 if (!mp) { 3707 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3708 "0396 The lpfc_dmabuf allocation failed\n"); 3709 goto out_free_pmb; 3710 } 3711 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3712 if (!mp->virt) { 3713 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3714 "0397 The mbuf allocation failed\n"); 3715 goto out_free_dmabuf; 3716 } 3717 3718 /* Cleanup any outstanding ELS commands */ 3719 lpfc_els_flush_all_cmd(phba); 3720 3721 /* Block ELS IOCBs until we have done process link event */ 3722 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3723 3724 /* Update link event statistics */ 3725 phba->sli.slistat.link_event++; 3726 3727 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3728 lpfc_read_topology(phba, pmb, mp); 3729 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3730 pmb->vport = phba->pport; 3731 3732 /* Keep the link status for extra SLI4 state machine reference */ 3733 phba->sli4_hba.link_state.speed = 3734 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 3735 bf_get(lpfc_acqe_link_speed, acqe_link)); 3736 phba->sli4_hba.link_state.duplex = 3737 bf_get(lpfc_acqe_link_duplex, acqe_link); 3738 phba->sli4_hba.link_state.status = 3739 bf_get(lpfc_acqe_link_status, acqe_link); 3740 phba->sli4_hba.link_state.type = 3741 bf_get(lpfc_acqe_link_type, acqe_link); 3742 phba->sli4_hba.link_state.number = 3743 bf_get(lpfc_acqe_link_number, acqe_link); 3744 phba->sli4_hba.link_state.fault = 3745 bf_get(lpfc_acqe_link_fault, acqe_link); 3746 phba->sli4_hba.link_state.logical_speed = 3747 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 3748 3749 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3750 "2900 Async FC/FCoE Link event - Speed:%dGBit " 3751 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 3752 "Logical speed:%dMbps Fault:%d\n", 3753 phba->sli4_hba.link_state.speed, 3754 phba->sli4_hba.link_state.topology, 3755 phba->sli4_hba.link_state.status, 3756 phba->sli4_hba.link_state.type, 3757 phba->sli4_hba.link_state.number, 3758 phba->sli4_hba.link_state.logical_speed, 3759 phba->sli4_hba.link_state.fault); 3760 /* 3761 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 3762 * topology info. Note: Optional for non FC-AL ports. 3763 */ 3764 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3765 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3766 if (rc == MBX_NOT_FINISHED) 3767 goto out_free_dmabuf; 3768 return; 3769 } 3770 /* 3771 * For FCoE Mode: fill in all the topology information we need and call 3772 * the READ_TOPOLOGY completion routine to continue without actually 3773 * sending the READ_TOPOLOGY mailbox command to the port. 3774 */ 3775 /* Parse and translate status field */ 3776 mb = &pmb->u.mb; 3777 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3778 3779 /* Parse and translate link attention fields */ 3780 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3781 la->eventTag = acqe_link->event_tag; 3782 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 3783 bf_set(lpfc_mbx_read_top_link_spd, la, 3784 lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); 3785 3786 /* Fake the the following irrelvant fields */ 3787 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 3788 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 3789 bf_set(lpfc_mbx_read_top_il, la, 0); 3790 bf_set(lpfc_mbx_read_top_pb, la, 0); 3791 bf_set(lpfc_mbx_read_top_fa, la, 0); 3792 bf_set(lpfc_mbx_read_top_mm, la, 0); 3793 3794 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3795 lpfc_mbx_cmpl_read_topology(phba, pmb); 3796 3797 return; 3798 3799 out_free_dmabuf: 3800 kfree(mp); 3801 out_free_pmb: 3802 mempool_free(pmb, phba->mbox_mem_pool); 3803 } 3804 3805 /** 3806 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 3807 * @phba: pointer to lpfc hba data structure. 3808 * @acqe_fc: pointer to the async fc completion queue entry. 3809 * 3810 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 3811 * that the event was received and then issue a read_topology mailbox command so 3812 * that the rest of the driver will treat it the same as SLI3. 3813 **/ 3814 static void 3815 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 3816 { 3817 struct lpfc_dmabuf *mp; 3818 LPFC_MBOXQ_t *pmb; 3819 int rc; 3820 3821 if (bf_get(lpfc_trailer_type, acqe_fc) != 3822 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 3823 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3824 "2895 Non FC link Event detected.(%d)\n", 3825 bf_get(lpfc_trailer_type, acqe_fc)); 3826 return; 3827 } 3828 /* Keep the link status for extra SLI4 state machine reference */ 3829 phba->sli4_hba.link_state.speed = 3830 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 3831 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 3832 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 3833 phba->sli4_hba.link_state.topology = 3834 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 3835 phba->sli4_hba.link_state.status = 3836 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 3837 phba->sli4_hba.link_state.type = 3838 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 3839 phba->sli4_hba.link_state.number = 3840 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 3841 phba->sli4_hba.link_state.fault = 3842 bf_get(lpfc_acqe_link_fault, acqe_fc); 3843 phba->sli4_hba.link_state.logical_speed = 3844 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 3845 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3846 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 3847 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 3848 "%dMbps Fault:%d\n", 3849 phba->sli4_hba.link_state.speed, 3850 phba->sli4_hba.link_state.topology, 3851 phba->sli4_hba.link_state.status, 3852 phba->sli4_hba.link_state.type, 3853 phba->sli4_hba.link_state.number, 3854 phba->sli4_hba.link_state.logical_speed, 3855 phba->sli4_hba.link_state.fault); 3856 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3857 if (!pmb) { 3858 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3859 "2897 The mboxq allocation failed\n"); 3860 return; 3861 } 3862 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3863 if (!mp) { 3864 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3865 "2898 The lpfc_dmabuf allocation failed\n"); 3866 goto out_free_pmb; 3867 } 3868 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3869 if (!mp->virt) { 3870 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3871 "2899 The mbuf allocation failed\n"); 3872 goto out_free_dmabuf; 3873 } 3874 3875 /* Cleanup any outstanding ELS commands */ 3876 lpfc_els_flush_all_cmd(phba); 3877 3878 /* Block ELS IOCBs until we have done process link event */ 3879 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3880 3881 /* Update link event statistics */ 3882 phba->sli.slistat.link_event++; 3883 3884 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3885 lpfc_read_topology(phba, pmb, mp); 3886 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3887 pmb->vport = phba->pport; 3888 3889 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3890 if (rc == MBX_NOT_FINISHED) 3891 goto out_free_dmabuf; 3892 return; 3893 3894 out_free_dmabuf: 3895 kfree(mp); 3896 out_free_pmb: 3897 mempool_free(pmb, phba->mbox_mem_pool); 3898 } 3899 3900 /** 3901 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 3902 * @phba: pointer to lpfc hba data structure. 3903 * @acqe_fc: pointer to the async SLI completion queue entry. 3904 * 3905 * This routine is to handle the SLI4 asynchronous SLI events. 3906 **/ 3907 static void 3908 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 3909 { 3910 char port_name; 3911 char message[128]; 3912 uint8_t status; 3913 struct lpfc_acqe_misconfigured_event *misconfigured; 3914 3915 /* special case misconfigured event as it contains data for all ports */ 3916 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 3917 LPFC_SLI_INTF_IF_TYPE_2) || 3918 (bf_get(lpfc_trailer_type, acqe_sli) != 3919 LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) { 3920 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3921 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 3922 "x%08x SLI Event Type:%d\n", 3923 acqe_sli->event_data1, acqe_sli->event_data2, 3924 bf_get(lpfc_trailer_type, acqe_sli)); 3925 return; 3926 } 3927 3928 port_name = phba->Port[0]; 3929 if (port_name == 0x00) 3930 port_name = '?'; /* get port name is empty */ 3931 3932 misconfigured = (struct lpfc_acqe_misconfigured_event *) 3933 &acqe_sli->event_data1; 3934 3935 /* fetch the status for this port */ 3936 switch (phba->sli4_hba.lnk_info.lnk_no) { 3937 case LPFC_LINK_NUMBER_0: 3938 status = bf_get(lpfc_sli_misconfigured_port0, 3939 &misconfigured->theEvent); 3940 break; 3941 case LPFC_LINK_NUMBER_1: 3942 status = bf_get(lpfc_sli_misconfigured_port1, 3943 &misconfigured->theEvent); 3944 break; 3945 case LPFC_LINK_NUMBER_2: 3946 status = bf_get(lpfc_sli_misconfigured_port2, 3947 &misconfigured->theEvent); 3948 break; 3949 case LPFC_LINK_NUMBER_3: 3950 status = bf_get(lpfc_sli_misconfigured_port3, 3951 &misconfigured->theEvent); 3952 break; 3953 default: 3954 status = ~LPFC_SLI_EVENT_STATUS_VALID; 3955 break; 3956 } 3957 3958 switch (status) { 3959 case LPFC_SLI_EVENT_STATUS_VALID: 3960 return; /* no message if the sfp is okay */ 3961 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 3962 sprintf(message, "Optics faulted/incorrectly installed/not " \ 3963 "installed - Reseat optics, if issue not " 3964 "resolved, replace."); 3965 break; 3966 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 3967 sprintf(message, 3968 "Optics of two types installed - Remove one optic or " \ 3969 "install matching pair of optics."); 3970 break; 3971 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 3972 sprintf(message, "Incompatible optics - Replace with " \ 3973 "compatible optics for card to function."); 3974 break; 3975 default: 3976 /* firmware is reporting a status we don't know about */ 3977 sprintf(message, "Unknown event status x%02x", status); 3978 break; 3979 } 3980 3981 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3982 "3176 Misconfigured Physical Port - " 3983 "Port Name %c %s\n", port_name, message); 3984 } 3985 3986 /** 3987 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3988 * @vport: pointer to vport data structure. 3989 * 3990 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3991 * response to a CVL event. 3992 * 3993 * Return the pointer to the ndlp with the vport if successful, otherwise 3994 * return NULL. 3995 **/ 3996 static struct lpfc_nodelist * 3997 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3998 { 3999 struct lpfc_nodelist *ndlp; 4000 struct Scsi_Host *shost; 4001 struct lpfc_hba *phba; 4002 4003 if (!vport) 4004 return NULL; 4005 phba = vport->phba; 4006 if (!phba) 4007 return NULL; 4008 ndlp = lpfc_findnode_did(vport, Fabric_DID); 4009 if (!ndlp) { 4010 /* Cannot find existing Fabric ndlp, so allocate a new one */ 4011 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 4012 if (!ndlp) 4013 return 0; 4014 lpfc_nlp_init(vport, ndlp, Fabric_DID); 4015 /* Set the node type */ 4016 ndlp->nlp_type |= NLP_FABRIC; 4017 /* Put ndlp onto node list */ 4018 lpfc_enqueue_node(vport, ndlp); 4019 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4020 /* re-setup ndlp without removing from node list */ 4021 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 4022 if (!ndlp) 4023 return 0; 4024 } 4025 if ((phba->pport->port_state < LPFC_FLOGI) && 4026 (phba->pport->port_state != LPFC_VPORT_FAILED)) 4027 return NULL; 4028 /* If virtual link is not yet instantiated ignore CVL */ 4029 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 4030 && (vport->port_state != LPFC_VPORT_FAILED)) 4031 return NULL; 4032 shost = lpfc_shost_from_vport(vport); 4033 if (!shost) 4034 return NULL; 4035 lpfc_linkdown_port(vport); 4036 lpfc_cleanup_pending_mbox(vport); 4037 spin_lock_irq(shost->host_lock); 4038 vport->fc_flag |= FC_VPORT_CVL_RCVD; 4039 spin_unlock_irq(shost->host_lock); 4040 4041 return ndlp; 4042 } 4043 4044 /** 4045 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 4046 * @vport: pointer to lpfc hba data structure. 4047 * 4048 * This routine is to perform Clear Virtual Link (CVL) on all vports in 4049 * response to a FCF dead event. 4050 **/ 4051 static void 4052 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 4053 { 4054 struct lpfc_vport **vports; 4055 int i; 4056 4057 vports = lpfc_create_vport_work_array(phba); 4058 if (vports) 4059 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 4060 lpfc_sli4_perform_vport_cvl(vports[i]); 4061 lpfc_destroy_vport_work_array(phba, vports); 4062 } 4063 4064 /** 4065 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 4066 * @phba: pointer to lpfc hba data structure. 4067 * @acqe_link: pointer to the async fcoe completion queue entry. 4068 * 4069 * This routine is to handle the SLI4 asynchronous fcoe event. 4070 **/ 4071 static void 4072 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 4073 struct lpfc_acqe_fip *acqe_fip) 4074 { 4075 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 4076 int rc; 4077 struct lpfc_vport *vport; 4078 struct lpfc_nodelist *ndlp; 4079 struct Scsi_Host *shost; 4080 int active_vlink_present; 4081 struct lpfc_vport **vports; 4082 int i; 4083 4084 phba->fc_eventTag = acqe_fip->event_tag; 4085 phba->fcoe_eventtag = acqe_fip->event_tag; 4086 switch (event_type) { 4087 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 4088 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 4089 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 4090 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4091 LOG_DISCOVERY, 4092 "2546 New FCF event, evt_tag:x%x, " 4093 "index:x%x\n", 4094 acqe_fip->event_tag, 4095 acqe_fip->index); 4096 else 4097 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 4098 LOG_DISCOVERY, 4099 "2788 FCF param modified event, " 4100 "evt_tag:x%x, index:x%x\n", 4101 acqe_fip->event_tag, 4102 acqe_fip->index); 4103 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4104 /* 4105 * During period of FCF discovery, read the FCF 4106 * table record indexed by the event to update 4107 * FCF roundrobin failover eligible FCF bmask. 4108 */ 4109 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4110 LOG_DISCOVERY, 4111 "2779 Read FCF (x%x) for updating " 4112 "roundrobin FCF failover bmask\n", 4113 acqe_fip->index); 4114 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 4115 } 4116 4117 /* If the FCF discovery is in progress, do nothing. */ 4118 spin_lock_irq(&phba->hbalock); 4119 if (phba->hba_flag & FCF_TS_INPROG) { 4120 spin_unlock_irq(&phba->hbalock); 4121 break; 4122 } 4123 /* If fast FCF failover rescan event is pending, do nothing */ 4124 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 4125 spin_unlock_irq(&phba->hbalock); 4126 break; 4127 } 4128 4129 /* If the FCF has been in discovered state, do nothing. */ 4130 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 4131 spin_unlock_irq(&phba->hbalock); 4132 break; 4133 } 4134 spin_unlock_irq(&phba->hbalock); 4135 4136 /* Otherwise, scan the entire FCF table and re-discover SAN */ 4137 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4138 "2770 Start FCF table scan per async FCF " 4139 "event, evt_tag:x%x, index:x%x\n", 4140 acqe_fip->event_tag, acqe_fip->index); 4141 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 4142 LPFC_FCOE_FCF_GET_FIRST); 4143 if (rc) 4144 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4145 "2547 Issue FCF scan read FCF mailbox " 4146 "command failed (x%x)\n", rc); 4147 break; 4148 4149 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 4150 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4151 "2548 FCF Table full count 0x%x tag 0x%x\n", 4152 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 4153 acqe_fip->event_tag); 4154 break; 4155 4156 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 4157 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4158 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4159 "2549 FCF (x%x) disconnected from network, " 4160 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 4161 /* 4162 * If we are in the middle of FCF failover process, clear 4163 * the corresponding FCF bit in the roundrobin bitmap. 4164 */ 4165 spin_lock_irq(&phba->hbalock); 4166 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4167 spin_unlock_irq(&phba->hbalock); 4168 /* Update FLOGI FCF failover eligible FCF bmask */ 4169 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 4170 break; 4171 } 4172 spin_unlock_irq(&phba->hbalock); 4173 4174 /* If the event is not for currently used fcf do nothing */ 4175 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 4176 break; 4177 4178 /* 4179 * Otherwise, request the port to rediscover the entire FCF 4180 * table for a fast recovery from case that the current FCF 4181 * is no longer valid as we are not in the middle of FCF 4182 * failover process already. 4183 */ 4184 spin_lock_irq(&phba->hbalock); 4185 /* Mark the fast failover process in progress */ 4186 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 4187 spin_unlock_irq(&phba->hbalock); 4188 4189 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4190 "2771 Start FCF fast failover process due to " 4191 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 4192 "\n", acqe_fip->event_tag, acqe_fip->index); 4193 rc = lpfc_sli4_redisc_fcf_table(phba); 4194 if (rc) { 4195 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4196 LOG_DISCOVERY, 4197 "2772 Issue FCF rediscover mabilbox " 4198 "command failed, fail through to FCF " 4199 "dead event\n"); 4200 spin_lock_irq(&phba->hbalock); 4201 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 4202 spin_unlock_irq(&phba->hbalock); 4203 /* 4204 * Last resort will fail over by treating this 4205 * as a link down to FCF registration. 4206 */ 4207 lpfc_sli4_fcf_dead_failthrough(phba); 4208 } else { 4209 /* Reset FCF roundrobin bmask for new discovery */ 4210 lpfc_sli4_clear_fcf_rr_bmask(phba); 4211 /* 4212 * Handling fast FCF failover to a DEAD FCF event is 4213 * considered equalivant to receiving CVL to all vports. 4214 */ 4215 lpfc_sli4_perform_all_vport_cvl(phba); 4216 } 4217 break; 4218 case LPFC_FIP_EVENT_TYPE_CVL: 4219 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4220 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4221 "2718 Clear Virtual Link Received for VPI 0x%x" 4222 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 4223 4224 vport = lpfc_find_vport_by_vpid(phba, 4225 acqe_fip->index); 4226 ndlp = lpfc_sli4_perform_vport_cvl(vport); 4227 if (!ndlp) 4228 break; 4229 active_vlink_present = 0; 4230 4231 vports = lpfc_create_vport_work_array(phba); 4232 if (vports) { 4233 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 4234 i++) { 4235 if ((!(vports[i]->fc_flag & 4236 FC_VPORT_CVL_RCVD)) && 4237 (vports[i]->port_state > LPFC_FDISC)) { 4238 active_vlink_present = 1; 4239 break; 4240 } 4241 } 4242 lpfc_destroy_vport_work_array(phba, vports); 4243 } 4244 4245 if (active_vlink_present) { 4246 /* 4247 * If there are other active VLinks present, 4248 * re-instantiate the Vlink using FDISC. 4249 */ 4250 mod_timer(&ndlp->nlp_delayfunc, 4251 jiffies + msecs_to_jiffies(1000)); 4252 shost = lpfc_shost_from_vport(vport); 4253 spin_lock_irq(shost->host_lock); 4254 ndlp->nlp_flag |= NLP_DELAY_TMO; 4255 spin_unlock_irq(shost->host_lock); 4256 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 4257 vport->port_state = LPFC_FDISC; 4258 } else { 4259 /* 4260 * Otherwise, we request port to rediscover 4261 * the entire FCF table for a fast recovery 4262 * from possible case that the current FCF 4263 * is no longer valid if we are not already 4264 * in the FCF failover process. 4265 */ 4266 spin_lock_irq(&phba->hbalock); 4267 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4268 spin_unlock_irq(&phba->hbalock); 4269 break; 4270 } 4271 /* Mark the fast failover process in progress */ 4272 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 4273 spin_unlock_irq(&phba->hbalock); 4274 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4275 LOG_DISCOVERY, 4276 "2773 Start FCF failover per CVL, " 4277 "evt_tag:x%x\n", acqe_fip->event_tag); 4278 rc = lpfc_sli4_redisc_fcf_table(phba); 4279 if (rc) { 4280 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4281 LOG_DISCOVERY, 4282 "2774 Issue FCF rediscover " 4283 "mabilbox command failed, " 4284 "through to CVL event\n"); 4285 spin_lock_irq(&phba->hbalock); 4286 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 4287 spin_unlock_irq(&phba->hbalock); 4288 /* 4289 * Last resort will be re-try on the 4290 * the current registered FCF entry. 4291 */ 4292 lpfc_retry_pport_discovery(phba); 4293 } else 4294 /* 4295 * Reset FCF roundrobin bmask for new 4296 * discovery. 4297 */ 4298 lpfc_sli4_clear_fcf_rr_bmask(phba); 4299 } 4300 break; 4301 default: 4302 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4303 "0288 Unknown FCoE event type 0x%x event tag " 4304 "0x%x\n", event_type, acqe_fip->event_tag); 4305 break; 4306 } 4307 } 4308 4309 /** 4310 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 4311 * @phba: pointer to lpfc hba data structure. 4312 * @acqe_link: pointer to the async dcbx completion queue entry. 4313 * 4314 * This routine is to handle the SLI4 asynchronous dcbx event. 4315 **/ 4316 static void 4317 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 4318 struct lpfc_acqe_dcbx *acqe_dcbx) 4319 { 4320 phba->fc_eventTag = acqe_dcbx->event_tag; 4321 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4322 "0290 The SLI4 DCBX asynchronous event is not " 4323 "handled yet\n"); 4324 } 4325 4326 /** 4327 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 4328 * @phba: pointer to lpfc hba data structure. 4329 * @acqe_link: pointer to the async grp5 completion queue entry. 4330 * 4331 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 4332 * is an asynchronous notified of a logical link speed change. The Port 4333 * reports the logical link speed in units of 10Mbps. 4334 **/ 4335 static void 4336 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 4337 struct lpfc_acqe_grp5 *acqe_grp5) 4338 { 4339 uint16_t prev_ll_spd; 4340 4341 phba->fc_eventTag = acqe_grp5->event_tag; 4342 phba->fcoe_eventtag = acqe_grp5->event_tag; 4343 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 4344 phba->sli4_hba.link_state.logical_speed = 4345 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 4346 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4347 "2789 GRP5 Async Event: Updating logical link speed " 4348 "from %dMbps to %dMbps\n", prev_ll_spd, 4349 phba->sli4_hba.link_state.logical_speed); 4350 } 4351 4352 /** 4353 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 4354 * @phba: pointer to lpfc hba data structure. 4355 * 4356 * This routine is invoked by the worker thread to process all the pending 4357 * SLI4 asynchronous events. 4358 **/ 4359 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 4360 { 4361 struct lpfc_cq_event *cq_event; 4362 4363 /* First, declare the async event has been handled */ 4364 spin_lock_irq(&phba->hbalock); 4365 phba->hba_flag &= ~ASYNC_EVENT; 4366 spin_unlock_irq(&phba->hbalock); 4367 /* Now, handle all the async events */ 4368 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 4369 /* Get the first event from the head of the event queue */ 4370 spin_lock_irq(&phba->hbalock); 4371 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 4372 cq_event, struct lpfc_cq_event, list); 4373 spin_unlock_irq(&phba->hbalock); 4374 /* Process the asynchronous event */ 4375 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 4376 case LPFC_TRAILER_CODE_LINK: 4377 lpfc_sli4_async_link_evt(phba, 4378 &cq_event->cqe.acqe_link); 4379 break; 4380 case LPFC_TRAILER_CODE_FCOE: 4381 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 4382 break; 4383 case LPFC_TRAILER_CODE_DCBX: 4384 lpfc_sli4_async_dcbx_evt(phba, 4385 &cq_event->cqe.acqe_dcbx); 4386 break; 4387 case LPFC_TRAILER_CODE_GRP5: 4388 lpfc_sli4_async_grp5_evt(phba, 4389 &cq_event->cqe.acqe_grp5); 4390 break; 4391 case LPFC_TRAILER_CODE_FC: 4392 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 4393 break; 4394 case LPFC_TRAILER_CODE_SLI: 4395 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 4396 break; 4397 default: 4398 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4399 "1804 Invalid asynchrous event code: " 4400 "x%x\n", bf_get(lpfc_trailer_code, 4401 &cq_event->cqe.mcqe_cmpl)); 4402 break; 4403 } 4404 /* Free the completion event processed to the free pool */ 4405 lpfc_sli4_cq_event_release(phba, cq_event); 4406 } 4407 } 4408 4409 /** 4410 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 4411 * @phba: pointer to lpfc hba data structure. 4412 * 4413 * This routine is invoked by the worker thread to process FCF table 4414 * rediscovery pending completion event. 4415 **/ 4416 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 4417 { 4418 int rc; 4419 4420 spin_lock_irq(&phba->hbalock); 4421 /* Clear FCF rediscovery timeout event */ 4422 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 4423 /* Clear driver fast failover FCF record flag */ 4424 phba->fcf.failover_rec.flag = 0; 4425 /* Set state for FCF fast failover */ 4426 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 4427 spin_unlock_irq(&phba->hbalock); 4428 4429 /* Scan FCF table from the first entry to re-discover SAN */ 4430 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4431 "2777 Start post-quiescent FCF table scan\n"); 4432 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 4433 if (rc) 4434 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4435 "2747 Issue FCF scan read FCF mailbox " 4436 "command failed 0x%x\n", rc); 4437 } 4438 4439 /** 4440 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 4441 * @phba: pointer to lpfc hba data structure. 4442 * @dev_grp: The HBA PCI-Device group number. 4443 * 4444 * This routine is invoked to set up the per HBA PCI-Device group function 4445 * API jump table entries. 4446 * 4447 * Return: 0 if success, otherwise -ENODEV 4448 **/ 4449 int 4450 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4451 { 4452 int rc; 4453 4454 /* Set up lpfc PCI-device group */ 4455 phba->pci_dev_grp = dev_grp; 4456 4457 /* The LPFC_PCI_DEV_OC uses SLI4 */ 4458 if (dev_grp == LPFC_PCI_DEV_OC) 4459 phba->sli_rev = LPFC_SLI_REV4; 4460 4461 /* Set up device INIT API function jump table */ 4462 rc = lpfc_init_api_table_setup(phba, dev_grp); 4463 if (rc) 4464 return -ENODEV; 4465 /* Set up SCSI API function jump table */ 4466 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 4467 if (rc) 4468 return -ENODEV; 4469 /* Set up SLI API function jump table */ 4470 rc = lpfc_sli_api_table_setup(phba, dev_grp); 4471 if (rc) 4472 return -ENODEV; 4473 /* Set up MBOX API function jump table */ 4474 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 4475 if (rc) 4476 return -ENODEV; 4477 4478 return 0; 4479 } 4480 4481 /** 4482 * lpfc_log_intr_mode - Log the active interrupt mode 4483 * @phba: pointer to lpfc hba data structure. 4484 * @intr_mode: active interrupt mode adopted. 4485 * 4486 * This routine it invoked to log the currently used active interrupt mode 4487 * to the device. 4488 **/ 4489 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 4490 { 4491 switch (intr_mode) { 4492 case 0: 4493 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4494 "0470 Enable INTx interrupt mode.\n"); 4495 break; 4496 case 1: 4497 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4498 "0481 Enabled MSI interrupt mode.\n"); 4499 break; 4500 case 2: 4501 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4502 "0480 Enabled MSI-X interrupt mode.\n"); 4503 break; 4504 default: 4505 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4506 "0482 Illegal interrupt mode.\n"); 4507 break; 4508 } 4509 return; 4510 } 4511 4512 /** 4513 * lpfc_enable_pci_dev - Enable a generic PCI device. 4514 * @phba: pointer to lpfc hba data structure. 4515 * 4516 * This routine is invoked to enable the PCI device that is common to all 4517 * PCI devices. 4518 * 4519 * Return codes 4520 * 0 - successful 4521 * other values - error 4522 **/ 4523 static int 4524 lpfc_enable_pci_dev(struct lpfc_hba *phba) 4525 { 4526 struct pci_dev *pdev; 4527 int bars = 0; 4528 4529 /* Obtain PCI device reference */ 4530 if (!phba->pcidev) 4531 goto out_error; 4532 else 4533 pdev = phba->pcidev; 4534 /* Select PCI BARs */ 4535 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4536 /* Enable PCI device */ 4537 if (pci_enable_device_mem(pdev)) 4538 goto out_error; 4539 /* Request PCI resource for the device */ 4540 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 4541 goto out_disable_device; 4542 /* Set up device as PCI master and save state for EEH */ 4543 pci_set_master(pdev); 4544 pci_try_set_mwi(pdev); 4545 pci_save_state(pdev); 4546 4547 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 4548 if (pci_is_pcie(pdev)) 4549 pdev->needs_freset = 1; 4550 4551 return 0; 4552 4553 out_disable_device: 4554 pci_disable_device(pdev); 4555 out_error: 4556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4557 "1401 Failed to enable pci device, bars:x%x\n", bars); 4558 return -ENODEV; 4559 } 4560 4561 /** 4562 * lpfc_disable_pci_dev - Disable a generic PCI device. 4563 * @phba: pointer to lpfc hba data structure. 4564 * 4565 * This routine is invoked to disable the PCI device that is common to all 4566 * PCI devices. 4567 **/ 4568 static void 4569 lpfc_disable_pci_dev(struct lpfc_hba *phba) 4570 { 4571 struct pci_dev *pdev; 4572 int bars; 4573 4574 /* Obtain PCI device reference */ 4575 if (!phba->pcidev) 4576 return; 4577 else 4578 pdev = phba->pcidev; 4579 /* Select PCI BARs */ 4580 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4581 /* Release PCI resource and disable PCI device */ 4582 pci_release_selected_regions(pdev, bars); 4583 pci_disable_device(pdev); 4584 4585 return; 4586 } 4587 4588 /** 4589 * lpfc_reset_hba - Reset a hba 4590 * @phba: pointer to lpfc hba data structure. 4591 * 4592 * This routine is invoked to reset a hba device. It brings the HBA 4593 * offline, performs a board restart, and then brings the board back 4594 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 4595 * on outstanding mailbox commands. 4596 **/ 4597 void 4598 lpfc_reset_hba(struct lpfc_hba *phba) 4599 { 4600 /* If resets are disabled then set error state and return. */ 4601 if (!phba->cfg_enable_hba_reset) { 4602 phba->link_state = LPFC_HBA_ERROR; 4603 return; 4604 } 4605 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 4606 lpfc_offline(phba); 4607 lpfc_sli_brdrestart(phba); 4608 lpfc_online(phba); 4609 lpfc_unblock_mgmt_io(phba); 4610 } 4611 4612 /** 4613 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 4614 * @phba: pointer to lpfc hba data structure. 4615 * 4616 * This function enables the PCI SR-IOV virtual functions to a physical 4617 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4618 * enable the number of virtual functions to the physical function. As 4619 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4620 * API call does not considered as an error condition for most of the device. 4621 **/ 4622 uint16_t 4623 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 4624 { 4625 struct pci_dev *pdev = phba->pcidev; 4626 uint16_t nr_virtfn; 4627 int pos; 4628 4629 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 4630 if (pos == 0) 4631 return 0; 4632 4633 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 4634 return nr_virtfn; 4635 } 4636 4637 /** 4638 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 4639 * @phba: pointer to lpfc hba data structure. 4640 * @nr_vfn: number of virtual functions to be enabled. 4641 * 4642 * This function enables the PCI SR-IOV virtual functions to a physical 4643 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4644 * enable the number of virtual functions to the physical function. As 4645 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4646 * API call does not considered as an error condition for most of the device. 4647 **/ 4648 int 4649 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 4650 { 4651 struct pci_dev *pdev = phba->pcidev; 4652 uint16_t max_nr_vfn; 4653 int rc; 4654 4655 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 4656 if (nr_vfn > max_nr_vfn) { 4657 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4658 "3057 Requested vfs (%d) greater than " 4659 "supported vfs (%d)", nr_vfn, max_nr_vfn); 4660 return -EINVAL; 4661 } 4662 4663 rc = pci_enable_sriov(pdev, nr_vfn); 4664 if (rc) { 4665 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4666 "2806 Failed to enable sriov on this device " 4667 "with vfn number nr_vf:%d, rc:%d\n", 4668 nr_vfn, rc); 4669 } else 4670 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4671 "2807 Successful enable sriov on this device " 4672 "with vfn number nr_vf:%d\n", nr_vfn); 4673 return rc; 4674 } 4675 4676 /** 4677 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 4678 * @phba: pointer to lpfc hba data structure. 4679 * 4680 * This routine is invoked to set up the driver internal resources specific to 4681 * support the SLI-3 HBA device it attached to. 4682 * 4683 * Return codes 4684 * 0 - successful 4685 * other values - error 4686 **/ 4687 static int 4688 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 4689 { 4690 struct lpfc_sli *psli; 4691 int rc; 4692 4693 /* 4694 * Initialize timers used by driver 4695 */ 4696 4697 /* Heartbeat timer */ 4698 init_timer(&phba->hb_tmofunc); 4699 phba->hb_tmofunc.function = lpfc_hb_timeout; 4700 phba->hb_tmofunc.data = (unsigned long)phba; 4701 4702 psli = &phba->sli; 4703 /* MBOX heartbeat timer */ 4704 init_timer(&psli->mbox_tmo); 4705 psli->mbox_tmo.function = lpfc_mbox_timeout; 4706 psli->mbox_tmo.data = (unsigned long) phba; 4707 /* FCP polling mode timer */ 4708 init_timer(&phba->fcp_poll_timer); 4709 phba->fcp_poll_timer.function = lpfc_poll_timeout; 4710 phba->fcp_poll_timer.data = (unsigned long) phba; 4711 /* Fabric block timer */ 4712 init_timer(&phba->fabric_block_timer); 4713 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4714 phba->fabric_block_timer.data = (unsigned long) phba; 4715 /* EA polling mode timer */ 4716 init_timer(&phba->eratt_poll); 4717 phba->eratt_poll.function = lpfc_poll_eratt; 4718 phba->eratt_poll.data = (unsigned long) phba; 4719 4720 /* Host attention work mask setup */ 4721 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 4722 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 4723 4724 /* Get all the module params for configuring this host */ 4725 lpfc_get_cfgparam(phba); 4726 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 4727 phba->menlo_flag |= HBA_MENLO_SUPPORT; 4728 /* check for menlo minimum sg count */ 4729 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 4730 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 4731 } 4732 4733 if (!phba->sli.ring) 4734 phba->sli.ring = (struct lpfc_sli_ring *) 4735 kzalloc(LPFC_SLI3_MAX_RING * 4736 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 4737 if (!phba->sli.ring) 4738 return -ENOMEM; 4739 4740 /* 4741 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 4742 * used to create the sg_dma_buf_pool must be dynamically calculated. 4743 */ 4744 4745 /* Initialize the host templates the configured values. */ 4746 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4747 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4748 4749 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ 4750 if (phba->cfg_enable_bg) { 4751 /* 4752 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 4753 * the FCP rsp, and a BDE for each. Sice we have no control 4754 * over how many protection data segments the SCSI Layer 4755 * will hand us (ie: there could be one for every block 4756 * in the IO), we just allocate enough BDEs to accomidate 4757 * our max amount and we need to limit lpfc_sg_seg_cnt to 4758 * minimize the risk of running out. 4759 */ 4760 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4761 sizeof(struct fcp_rsp) + 4762 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64)); 4763 4764 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF) 4765 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF; 4766 4767 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */ 4768 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT; 4769 } else { 4770 /* 4771 * The scsi_buf for a regular I/O will hold the FCP cmnd, 4772 * the FCP rsp, a BDE for each, and a BDE for up to 4773 * cfg_sg_seg_cnt data segments. 4774 */ 4775 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4776 sizeof(struct fcp_rsp) + 4777 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 4778 4779 /* Total BDEs in BPL for scsi_sg_list */ 4780 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 4781 } 4782 4783 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 4784 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n", 4785 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 4786 phba->cfg_total_seg_cnt); 4787 4788 phba->max_vpi = LPFC_MAX_VPI; 4789 /* This will be set to correct value after config_port mbox */ 4790 phba->max_vports = 0; 4791 4792 /* 4793 * Initialize the SLI Layer to run with lpfc HBAs. 4794 */ 4795 lpfc_sli_setup(phba); 4796 lpfc_sli_queue_setup(phba); 4797 4798 /* Allocate device driver memory */ 4799 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 4800 return -ENOMEM; 4801 4802 /* 4803 * Enable sr-iov virtual functions if supported and configured 4804 * through the module parameter. 4805 */ 4806 if (phba->cfg_sriov_nr_virtfn > 0) { 4807 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4808 phba->cfg_sriov_nr_virtfn); 4809 if (rc) { 4810 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4811 "2808 Requested number of SR-IOV " 4812 "virtual functions (%d) is not " 4813 "supported\n", 4814 phba->cfg_sriov_nr_virtfn); 4815 phba->cfg_sriov_nr_virtfn = 0; 4816 } 4817 } 4818 4819 return 0; 4820 } 4821 4822 /** 4823 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 4824 * @phba: pointer to lpfc hba data structure. 4825 * 4826 * This routine is invoked to unset the driver internal resources set up 4827 * specific for supporting the SLI-3 HBA device it attached to. 4828 **/ 4829 static void 4830 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 4831 { 4832 /* Free device driver memory allocated */ 4833 lpfc_mem_free_all(phba); 4834 4835 return; 4836 } 4837 4838 /** 4839 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 4840 * @phba: pointer to lpfc hba data structure. 4841 * 4842 * This routine is invoked to set up the driver internal resources specific to 4843 * support the SLI-4 HBA device it attached to. 4844 * 4845 * Return codes 4846 * 0 - successful 4847 * other values - error 4848 **/ 4849 static int 4850 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 4851 { 4852 struct lpfc_vector_map_info *cpup; 4853 struct lpfc_sli *psli; 4854 LPFC_MBOXQ_t *mboxq; 4855 int rc, i, hbq_count, max_buf_size; 4856 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 4857 struct lpfc_mqe *mqe; 4858 int longs; 4859 4860 /* Get all the module params for configuring this host */ 4861 lpfc_get_cfgparam(phba); 4862 4863 /* Before proceed, wait for POST done and device ready */ 4864 rc = lpfc_sli4_post_status_check(phba); 4865 if (rc) 4866 return -ENODEV; 4867 4868 /* 4869 * Initialize timers used by driver 4870 */ 4871 4872 /* Heartbeat timer */ 4873 init_timer(&phba->hb_tmofunc); 4874 phba->hb_tmofunc.function = lpfc_hb_timeout; 4875 phba->hb_tmofunc.data = (unsigned long)phba; 4876 init_timer(&phba->rrq_tmr); 4877 phba->rrq_tmr.function = lpfc_rrq_timeout; 4878 phba->rrq_tmr.data = (unsigned long)phba; 4879 4880 psli = &phba->sli; 4881 /* MBOX heartbeat timer */ 4882 init_timer(&psli->mbox_tmo); 4883 psli->mbox_tmo.function = lpfc_mbox_timeout; 4884 psli->mbox_tmo.data = (unsigned long) phba; 4885 /* Fabric block timer */ 4886 init_timer(&phba->fabric_block_timer); 4887 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4888 phba->fabric_block_timer.data = (unsigned long) phba; 4889 /* EA polling mode timer */ 4890 init_timer(&phba->eratt_poll); 4891 phba->eratt_poll.function = lpfc_poll_eratt; 4892 phba->eratt_poll.data = (unsigned long) phba; 4893 /* FCF rediscover timer */ 4894 init_timer(&phba->fcf.redisc_wait); 4895 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4896 phba->fcf.redisc_wait.data = (unsigned long)phba; 4897 4898 /* 4899 * Control structure for handling external multi-buffer mailbox 4900 * command pass-through. 4901 */ 4902 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 4903 sizeof(struct lpfc_mbox_ext_buf_ctx)); 4904 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 4905 4906 phba->max_vpi = LPFC_MAX_VPI; 4907 4908 /* This will be set to correct value after the read_config mbox */ 4909 phba->max_vports = 0; 4910 4911 /* Program the default value of vlan_id and fc_map */ 4912 phba->valid_vlan = 0; 4913 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4914 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4915 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4916 4917 /* 4918 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 4919 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple. 4920 */ 4921 if (!phba->sli.ring) 4922 phba->sli.ring = kzalloc( 4923 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) * 4924 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 4925 if (!phba->sli.ring) 4926 return -ENOMEM; 4927 4928 /* 4929 * It doesn't matter what family our adapter is in, we are 4930 * limited to 2 Pages, 512 SGEs, for our SGL. 4931 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp 4932 */ 4933 max_buf_size = (2 * SLI4_PAGE_SIZE); 4934 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2) 4935 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2; 4936 4937 /* 4938 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 4939 * used to create the sg_dma_buf_pool must be dynamically calculated. 4940 */ 4941 4942 if (phba->cfg_enable_bg) { 4943 /* 4944 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 4945 * the FCP rsp, and a SGE for each. Sice we have no control 4946 * over how many protection data segments the SCSI Layer 4947 * will hand us (ie: there could be one for every block 4948 * in the IO), we just allocate enough SGEs to accomidate 4949 * our max amount and we need to limit lpfc_sg_seg_cnt to 4950 * minimize the risk of running out. 4951 */ 4952 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4953 sizeof(struct fcp_rsp) + max_buf_size; 4954 4955 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ 4956 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; 4957 4958 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF) 4959 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF; 4960 } else { 4961 /* 4962 * The scsi_buf for a regular I/O will hold the FCP cmnd, 4963 * the FCP rsp, a SGE for each, and a SGE for up to 4964 * cfg_sg_seg_cnt data segments. 4965 */ 4966 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4967 sizeof(struct fcp_rsp) + 4968 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)); 4969 4970 /* Total SGEs for scsi_sg_list */ 4971 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 4972 /* 4973 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need 4974 * to post 1 page for the SGL. 4975 */ 4976 } 4977 4978 /* Initialize the host templates with the updated values. */ 4979 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4980 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4981 4982 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) 4983 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; 4984 else 4985 phba->cfg_sg_dma_buf_size = 4986 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); 4987 4988 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 4989 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n", 4990 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 4991 phba->cfg_total_seg_cnt); 4992 4993 /* Initialize buffer queue management fields */ 4994 hbq_count = lpfc_sli_hbq_count(); 4995 for (i = 0; i < hbq_count; ++i) 4996 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4997 INIT_LIST_HEAD(&phba->rb_pend_list); 4998 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4999 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 5000 5001 /* 5002 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 5003 */ 5004 /* Initialize the Abort scsi buffer list used by driver */ 5005 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 5006 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 5007 /* This abort list used by worker thread */ 5008 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 5009 5010 /* 5011 * Initialize driver internal slow-path work queues 5012 */ 5013 5014 /* Driver internel slow-path CQ Event pool */ 5015 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 5016 /* Response IOCB work queue list */ 5017 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 5018 /* Asynchronous event CQ Event work queue list */ 5019 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 5020 /* Fast-path XRI aborted CQ Event work queue list */ 5021 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 5022 /* Slow-path XRI aborted CQ Event work queue list */ 5023 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 5024 /* Receive queue CQ Event work queue list */ 5025 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 5026 5027 /* Initialize extent block lists. */ 5028 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 5029 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 5030 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 5031 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 5032 5033 /* Initialize the driver internal SLI layer lists. */ 5034 lpfc_sli_setup(phba); 5035 lpfc_sli_queue_setup(phba); 5036 5037 /* Allocate device driver memory */ 5038 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 5039 if (rc) 5040 return -ENOMEM; 5041 5042 /* IF Type 2 ports get initialized now. */ 5043 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5044 LPFC_SLI_INTF_IF_TYPE_2) { 5045 rc = lpfc_pci_function_reset(phba); 5046 if (unlikely(rc)) 5047 return -ENODEV; 5048 } 5049 5050 /* Create the bootstrap mailbox command */ 5051 rc = lpfc_create_bootstrap_mbox(phba); 5052 if (unlikely(rc)) 5053 goto out_free_mem; 5054 5055 /* Set up the host's endian order with the device. */ 5056 rc = lpfc_setup_endian_order(phba); 5057 if (unlikely(rc)) 5058 goto out_free_bsmbx; 5059 5060 /* Set up the hba's configuration parameters. */ 5061 rc = lpfc_sli4_read_config(phba); 5062 if (unlikely(rc)) 5063 goto out_free_bsmbx; 5064 5065 /* IF Type 0 ports get initialized now. */ 5066 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5067 LPFC_SLI_INTF_IF_TYPE_0) { 5068 rc = lpfc_pci_function_reset(phba); 5069 if (unlikely(rc)) 5070 goto out_free_bsmbx; 5071 } 5072 5073 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 5074 GFP_KERNEL); 5075 if (!mboxq) { 5076 rc = -ENOMEM; 5077 goto out_free_bsmbx; 5078 } 5079 5080 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 5081 lpfc_supported_pages(mboxq); 5082 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5083 if (!rc) { 5084 mqe = &mboxq->u.mqe; 5085 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 5086 LPFC_MAX_SUPPORTED_PAGES); 5087 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 5088 switch (pn_page[i]) { 5089 case LPFC_SLI4_PARAMETERS: 5090 phba->sli4_hba.pc_sli4_params.supported = 1; 5091 break; 5092 default: 5093 break; 5094 } 5095 } 5096 /* Read the port's SLI4 Parameters capabilities if supported. */ 5097 if (phba->sli4_hba.pc_sli4_params.supported) 5098 rc = lpfc_pc_sli4_params_get(phba, mboxq); 5099 if (rc) { 5100 mempool_free(mboxq, phba->mbox_mem_pool); 5101 rc = -EIO; 5102 goto out_free_bsmbx; 5103 } 5104 } 5105 /* 5106 * Get sli4 parameters that override parameters from Port capabilities. 5107 * If this call fails, it isn't critical unless the SLI4 parameters come 5108 * back in conflict. 5109 */ 5110 rc = lpfc_get_sli4_parameters(phba, mboxq); 5111 if (rc) { 5112 if (phba->sli4_hba.extents_in_use && 5113 phba->sli4_hba.rpi_hdrs_in_use) { 5114 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5115 "2999 Unsupported SLI4 Parameters " 5116 "Extents and RPI headers enabled.\n"); 5117 goto out_free_bsmbx; 5118 } 5119 } 5120 mempool_free(mboxq, phba->mbox_mem_pool); 5121 /* Verify all the SLI4 queues */ 5122 rc = lpfc_sli4_queue_verify(phba); 5123 if (rc) 5124 goto out_free_bsmbx; 5125 5126 /* Create driver internal CQE event pool */ 5127 rc = lpfc_sli4_cq_event_pool_create(phba); 5128 if (rc) 5129 goto out_free_bsmbx; 5130 5131 /* Initialize sgl lists per host */ 5132 lpfc_init_sgl_list(phba); 5133 5134 /* Allocate and initialize active sgl array */ 5135 rc = lpfc_init_active_sgl_array(phba); 5136 if (rc) { 5137 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5138 "1430 Failed to initialize sgl list.\n"); 5139 goto out_destroy_cq_event_pool; 5140 } 5141 rc = lpfc_sli4_init_rpi_hdrs(phba); 5142 if (rc) { 5143 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5144 "1432 Failed to initialize rpi headers.\n"); 5145 goto out_free_active_sgl; 5146 } 5147 5148 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 5149 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 5150 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 5151 GFP_KERNEL); 5152 if (!phba->fcf.fcf_rr_bmask) { 5153 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5154 "2759 Failed allocate memory for FCF round " 5155 "robin failover bmask\n"); 5156 rc = -ENOMEM; 5157 goto out_remove_rpi_hdrs; 5158 } 5159 5160 phba->sli4_hba.fcp_eq_hdl = 5161 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 5162 phba->cfg_fcp_io_channel), GFP_KERNEL); 5163 if (!phba->sli4_hba.fcp_eq_hdl) { 5164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5165 "2572 Failed allocate memory for " 5166 "fast-path per-EQ handle array\n"); 5167 rc = -ENOMEM; 5168 goto out_free_fcf_rr_bmask; 5169 } 5170 5171 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 5172 phba->cfg_fcp_io_channel), GFP_KERNEL); 5173 if (!phba->sli4_hba.msix_entries) { 5174 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5175 "2573 Failed allocate memory for msi-x " 5176 "interrupt vector entries\n"); 5177 rc = -ENOMEM; 5178 goto out_free_fcp_eq_hdl; 5179 } 5180 5181 phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) * 5182 phba->sli4_hba.num_present_cpu), 5183 GFP_KERNEL); 5184 if (!phba->sli4_hba.cpu_map) { 5185 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5186 "3327 Failed allocate memory for msi-x " 5187 "interrupt vector mapping\n"); 5188 rc = -ENOMEM; 5189 goto out_free_msix; 5190 } 5191 if (lpfc_used_cpu == NULL) { 5192 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu), 5193 GFP_KERNEL); 5194 if (!lpfc_used_cpu) { 5195 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5196 "3335 Failed allocate memory for msi-x " 5197 "interrupt vector mapping\n"); 5198 kfree(phba->sli4_hba.cpu_map); 5199 rc = -ENOMEM; 5200 goto out_free_msix; 5201 } 5202 for (i = 0; i < lpfc_present_cpu; i++) 5203 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY; 5204 } 5205 5206 /* Initialize io channels for round robin */ 5207 cpup = phba->sli4_hba.cpu_map; 5208 rc = 0; 5209 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 5210 cpup->channel_id = rc; 5211 rc++; 5212 if (rc >= phba->cfg_fcp_io_channel) 5213 rc = 0; 5214 } 5215 5216 /* 5217 * Enable sr-iov virtual functions if supported and configured 5218 * through the module parameter. 5219 */ 5220 if (phba->cfg_sriov_nr_virtfn > 0) { 5221 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5222 phba->cfg_sriov_nr_virtfn); 5223 if (rc) { 5224 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5225 "3020 Requested number of SR-IOV " 5226 "virtual functions (%d) is not " 5227 "supported\n", 5228 phba->cfg_sriov_nr_virtfn); 5229 phba->cfg_sriov_nr_virtfn = 0; 5230 } 5231 } 5232 5233 return 0; 5234 5235 out_free_msix: 5236 kfree(phba->sli4_hba.msix_entries); 5237 out_free_fcp_eq_hdl: 5238 kfree(phba->sli4_hba.fcp_eq_hdl); 5239 out_free_fcf_rr_bmask: 5240 kfree(phba->fcf.fcf_rr_bmask); 5241 out_remove_rpi_hdrs: 5242 lpfc_sli4_remove_rpi_hdrs(phba); 5243 out_free_active_sgl: 5244 lpfc_free_active_sgl(phba); 5245 out_destroy_cq_event_pool: 5246 lpfc_sli4_cq_event_pool_destroy(phba); 5247 out_free_bsmbx: 5248 lpfc_destroy_bootstrap_mbox(phba); 5249 out_free_mem: 5250 lpfc_mem_free(phba); 5251 return rc; 5252 } 5253 5254 /** 5255 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 5256 * @phba: pointer to lpfc hba data structure. 5257 * 5258 * This routine is invoked to unset the driver internal resources set up 5259 * specific for supporting the SLI-4 HBA device it attached to. 5260 **/ 5261 static void 5262 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 5263 { 5264 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 5265 5266 /* Free memory allocated for msi-x interrupt vector to CPU mapping */ 5267 kfree(phba->sli4_hba.cpu_map); 5268 phba->sli4_hba.num_present_cpu = 0; 5269 phba->sli4_hba.num_online_cpu = 0; 5270 5271 /* Free memory allocated for msi-x interrupt vector entries */ 5272 kfree(phba->sli4_hba.msix_entries); 5273 5274 /* Free memory allocated for fast-path work queue handles */ 5275 kfree(phba->sli4_hba.fcp_eq_hdl); 5276 5277 /* Free the allocated rpi headers. */ 5278 lpfc_sli4_remove_rpi_hdrs(phba); 5279 lpfc_sli4_remove_rpis(phba); 5280 5281 /* Free eligible FCF index bmask */ 5282 kfree(phba->fcf.fcf_rr_bmask); 5283 5284 /* Free the ELS sgl list */ 5285 lpfc_free_active_sgl(phba); 5286 lpfc_free_els_sgl_list(phba); 5287 5288 /* Free the completion queue EQ event pool */ 5289 lpfc_sli4_cq_event_release_all(phba); 5290 lpfc_sli4_cq_event_pool_destroy(phba); 5291 5292 /* Release resource identifiers. */ 5293 lpfc_sli4_dealloc_resource_identifiers(phba); 5294 5295 /* Free the bsmbx region. */ 5296 lpfc_destroy_bootstrap_mbox(phba); 5297 5298 /* Free the SLI Layer memory with SLI4 HBAs */ 5299 lpfc_mem_free_all(phba); 5300 5301 /* Free the current connect table */ 5302 list_for_each_entry_safe(conn_entry, next_conn_entry, 5303 &phba->fcf_conn_rec_list, list) { 5304 list_del_init(&conn_entry->list); 5305 kfree(conn_entry); 5306 } 5307 5308 return; 5309 } 5310 5311 /** 5312 * lpfc_init_api_table_setup - Set up init api function jump table 5313 * @phba: The hba struct for which this call is being executed. 5314 * @dev_grp: The HBA PCI-Device group number. 5315 * 5316 * This routine sets up the device INIT interface API function jump table 5317 * in @phba struct. 5318 * 5319 * Returns: 0 - success, -ENODEV - failure. 5320 **/ 5321 int 5322 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5323 { 5324 phba->lpfc_hba_init_link = lpfc_hba_init_link; 5325 phba->lpfc_hba_down_link = lpfc_hba_down_link; 5326 phba->lpfc_selective_reset = lpfc_selective_reset; 5327 switch (dev_grp) { 5328 case LPFC_PCI_DEV_LP: 5329 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 5330 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 5331 phba->lpfc_stop_port = lpfc_stop_port_s3; 5332 break; 5333 case LPFC_PCI_DEV_OC: 5334 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 5335 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 5336 phba->lpfc_stop_port = lpfc_stop_port_s4; 5337 break; 5338 default: 5339 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5340 "1431 Invalid HBA PCI-device group: 0x%x\n", 5341 dev_grp); 5342 return -ENODEV; 5343 break; 5344 } 5345 return 0; 5346 } 5347 5348 /** 5349 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5350 * @phba: pointer to lpfc hba data structure. 5351 * 5352 * This routine is invoked to set up the driver internal resources before the 5353 * device specific resource setup to support the HBA device it attached to. 5354 * 5355 * Return codes 5356 * 0 - successful 5357 * other values - error 5358 **/ 5359 static int 5360 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5361 { 5362 /* 5363 * Driver resources common to all SLI revisions 5364 */ 5365 atomic_set(&phba->fast_event_count, 0); 5366 spin_lock_init(&phba->hbalock); 5367 5368 /* Initialize ndlp management spinlock */ 5369 spin_lock_init(&phba->ndlp_lock); 5370 5371 INIT_LIST_HEAD(&phba->port_list); 5372 INIT_LIST_HEAD(&phba->work_list); 5373 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5374 5375 /* Initialize the wait queue head for the kernel thread */ 5376 init_waitqueue_head(&phba->work_waitq); 5377 5378 /* Initialize the scsi buffer list used by driver for scsi IO */ 5379 spin_lock_init(&phba->scsi_buf_list_get_lock); 5380 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); 5381 spin_lock_init(&phba->scsi_buf_list_put_lock); 5382 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 5383 5384 /* Initialize the fabric iocb list */ 5385 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5386 5387 /* Initialize list to save ELS buffers */ 5388 INIT_LIST_HEAD(&phba->elsbuf); 5389 5390 /* Initialize FCF connection rec list */ 5391 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5392 5393 return 0; 5394 } 5395 5396 /** 5397 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 5398 * @phba: pointer to lpfc hba data structure. 5399 * 5400 * This routine is invoked to set up the driver internal resources after the 5401 * device specific resource setup to support the HBA device it attached to. 5402 * 5403 * Return codes 5404 * 0 - successful 5405 * other values - error 5406 **/ 5407 static int 5408 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 5409 { 5410 int error; 5411 5412 /* Startup the kernel thread for this host adapter. */ 5413 phba->worker_thread = kthread_run(lpfc_do_work, phba, 5414 "lpfc_worker_%d", phba->brd_no); 5415 if (IS_ERR(phba->worker_thread)) { 5416 error = PTR_ERR(phba->worker_thread); 5417 return error; 5418 } 5419 5420 return 0; 5421 } 5422 5423 /** 5424 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 5425 * @phba: pointer to lpfc hba data structure. 5426 * 5427 * This routine is invoked to unset the driver internal resources set up after 5428 * the device specific resource setup for supporting the HBA device it 5429 * attached to. 5430 **/ 5431 static void 5432 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 5433 { 5434 /* Stop kernel worker thread */ 5435 kthread_stop(phba->worker_thread); 5436 } 5437 5438 /** 5439 * lpfc_free_iocb_list - Free iocb list. 5440 * @phba: pointer to lpfc hba data structure. 5441 * 5442 * This routine is invoked to free the driver's IOCB list and memory. 5443 **/ 5444 static void 5445 lpfc_free_iocb_list(struct lpfc_hba *phba) 5446 { 5447 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 5448 5449 spin_lock_irq(&phba->hbalock); 5450 list_for_each_entry_safe(iocbq_entry, iocbq_next, 5451 &phba->lpfc_iocb_list, list) { 5452 list_del(&iocbq_entry->list); 5453 kfree(iocbq_entry); 5454 phba->total_iocbq_bufs--; 5455 } 5456 spin_unlock_irq(&phba->hbalock); 5457 5458 return; 5459 } 5460 5461 /** 5462 * lpfc_init_iocb_list - Allocate and initialize iocb list. 5463 * @phba: pointer to lpfc hba data structure. 5464 * 5465 * This routine is invoked to allocate and initizlize the driver's IOCB 5466 * list and set up the IOCB tag array accordingly. 5467 * 5468 * Return codes 5469 * 0 - successful 5470 * other values - error 5471 **/ 5472 static int 5473 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 5474 { 5475 struct lpfc_iocbq *iocbq_entry = NULL; 5476 uint16_t iotag; 5477 int i; 5478 5479 /* Initialize and populate the iocb list per host. */ 5480 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 5481 for (i = 0; i < iocb_count; i++) { 5482 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 5483 if (iocbq_entry == NULL) { 5484 printk(KERN_ERR "%s: only allocated %d iocbs of " 5485 "expected %d count. Unloading driver.\n", 5486 __func__, i, LPFC_IOCB_LIST_CNT); 5487 goto out_free_iocbq; 5488 } 5489 5490 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 5491 if (iotag == 0) { 5492 kfree(iocbq_entry); 5493 printk(KERN_ERR "%s: failed to allocate IOTAG. " 5494 "Unloading driver.\n", __func__); 5495 goto out_free_iocbq; 5496 } 5497 iocbq_entry->sli4_lxritag = NO_XRI; 5498 iocbq_entry->sli4_xritag = NO_XRI; 5499 5500 spin_lock_irq(&phba->hbalock); 5501 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 5502 phba->total_iocbq_bufs++; 5503 spin_unlock_irq(&phba->hbalock); 5504 } 5505 5506 return 0; 5507 5508 out_free_iocbq: 5509 lpfc_free_iocb_list(phba); 5510 5511 return -ENOMEM; 5512 } 5513 5514 /** 5515 * lpfc_free_sgl_list - Free a given sgl list. 5516 * @phba: pointer to lpfc hba data structure. 5517 * @sglq_list: pointer to the head of sgl list. 5518 * 5519 * This routine is invoked to free a give sgl list and memory. 5520 **/ 5521 void 5522 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 5523 { 5524 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 5525 5526 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 5527 list_del(&sglq_entry->list); 5528 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 5529 kfree(sglq_entry); 5530 } 5531 } 5532 5533 /** 5534 * lpfc_free_els_sgl_list - Free els sgl list. 5535 * @phba: pointer to lpfc hba data structure. 5536 * 5537 * This routine is invoked to free the driver's els sgl list and memory. 5538 **/ 5539 static void 5540 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 5541 { 5542 LIST_HEAD(sglq_list); 5543 5544 /* Retrieve all els sgls from driver list */ 5545 spin_lock_irq(&phba->hbalock); 5546 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 5547 spin_unlock_irq(&phba->hbalock); 5548 5549 /* Now free the sgl list */ 5550 lpfc_free_sgl_list(phba, &sglq_list); 5551 } 5552 5553 /** 5554 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 5555 * @phba: pointer to lpfc hba data structure. 5556 * 5557 * This routine is invoked to allocate the driver's active sgl memory. 5558 * This array will hold the sglq_entry's for active IOs. 5559 **/ 5560 static int 5561 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 5562 { 5563 int size; 5564 size = sizeof(struct lpfc_sglq *); 5565 size *= phba->sli4_hba.max_cfg_param.max_xri; 5566 5567 phba->sli4_hba.lpfc_sglq_active_list = 5568 kzalloc(size, GFP_KERNEL); 5569 if (!phba->sli4_hba.lpfc_sglq_active_list) 5570 return -ENOMEM; 5571 return 0; 5572 } 5573 5574 /** 5575 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 5576 * @phba: pointer to lpfc hba data structure. 5577 * 5578 * This routine is invoked to walk through the array of active sglq entries 5579 * and free all of the resources. 5580 * This is just a place holder for now. 5581 **/ 5582 static void 5583 lpfc_free_active_sgl(struct lpfc_hba *phba) 5584 { 5585 kfree(phba->sli4_hba.lpfc_sglq_active_list); 5586 } 5587 5588 /** 5589 * lpfc_init_sgl_list - Allocate and initialize sgl list. 5590 * @phba: pointer to lpfc hba data structure. 5591 * 5592 * This routine is invoked to allocate and initizlize the driver's sgl 5593 * list and set up the sgl xritag tag array accordingly. 5594 * 5595 **/ 5596 static void 5597 lpfc_init_sgl_list(struct lpfc_hba *phba) 5598 { 5599 /* Initialize and populate the sglq list per host/VF. */ 5600 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 5601 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 5602 5603 /* els xri-sgl book keeping */ 5604 phba->sli4_hba.els_xri_cnt = 0; 5605 5606 /* scsi xri-buffer book keeping */ 5607 phba->sli4_hba.scsi_xri_cnt = 0; 5608 } 5609 5610 /** 5611 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 5612 * @phba: pointer to lpfc hba data structure. 5613 * 5614 * This routine is invoked to post rpi header templates to the 5615 * port for those SLI4 ports that do not support extents. This routine 5616 * posts a PAGE_SIZE memory region to the port to hold up to 5617 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 5618 * and should be called only when interrupts are disabled. 5619 * 5620 * Return codes 5621 * 0 - successful 5622 * -ERROR - otherwise. 5623 **/ 5624 int 5625 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 5626 { 5627 int rc = 0; 5628 struct lpfc_rpi_hdr *rpi_hdr; 5629 5630 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 5631 if (!phba->sli4_hba.rpi_hdrs_in_use) 5632 return rc; 5633 if (phba->sli4_hba.extents_in_use) 5634 return -EIO; 5635 5636 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 5637 if (!rpi_hdr) { 5638 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 5639 "0391 Error during rpi post operation\n"); 5640 lpfc_sli4_remove_rpis(phba); 5641 rc = -ENODEV; 5642 } 5643 5644 return rc; 5645 } 5646 5647 /** 5648 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 5649 * @phba: pointer to lpfc hba data structure. 5650 * 5651 * This routine is invoked to allocate a single 4KB memory region to 5652 * support rpis and stores them in the phba. This single region 5653 * provides support for up to 64 rpis. The region is used globally 5654 * by the device. 5655 * 5656 * Returns: 5657 * A valid rpi hdr on success. 5658 * A NULL pointer on any failure. 5659 **/ 5660 struct lpfc_rpi_hdr * 5661 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 5662 { 5663 uint16_t rpi_limit, curr_rpi_range; 5664 struct lpfc_dmabuf *dmabuf; 5665 struct lpfc_rpi_hdr *rpi_hdr; 5666 uint32_t rpi_count; 5667 5668 /* 5669 * If the SLI4 port supports extents, posting the rpi header isn't 5670 * required. Set the expected maximum count and let the actual value 5671 * get set when extents are fully allocated. 5672 */ 5673 if (!phba->sli4_hba.rpi_hdrs_in_use) 5674 return NULL; 5675 if (phba->sli4_hba.extents_in_use) 5676 return NULL; 5677 5678 /* The limit on the logical index is just the max_rpi count. */ 5679 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 5680 phba->sli4_hba.max_cfg_param.max_rpi - 1; 5681 5682 spin_lock_irq(&phba->hbalock); 5683 /* 5684 * Establish the starting RPI in this header block. The starting 5685 * rpi is normalized to a zero base because the physical rpi is 5686 * port based. 5687 */ 5688 curr_rpi_range = phba->sli4_hba.next_rpi; 5689 spin_unlock_irq(&phba->hbalock); 5690 5691 /* 5692 * The port has a limited number of rpis. The increment here 5693 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 5694 * and to allow the full max_rpi range per port. 5695 */ 5696 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 5697 rpi_count = rpi_limit - curr_rpi_range; 5698 else 5699 rpi_count = LPFC_RPI_HDR_COUNT; 5700 5701 if (!rpi_count) 5702 return NULL; 5703 /* 5704 * First allocate the protocol header region for the port. The 5705 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 5706 */ 5707 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5708 if (!dmabuf) 5709 return NULL; 5710 5711 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5712 LPFC_HDR_TEMPLATE_SIZE, 5713 &dmabuf->phys, 5714 GFP_KERNEL); 5715 if (!dmabuf->virt) { 5716 rpi_hdr = NULL; 5717 goto err_free_dmabuf; 5718 } 5719 5720 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 5721 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 5722 rpi_hdr = NULL; 5723 goto err_free_coherent; 5724 } 5725 5726 /* Save the rpi header data for cleanup later. */ 5727 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 5728 if (!rpi_hdr) 5729 goto err_free_coherent; 5730 5731 rpi_hdr->dmabuf = dmabuf; 5732 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 5733 rpi_hdr->page_count = 1; 5734 spin_lock_irq(&phba->hbalock); 5735 5736 /* The rpi_hdr stores the logical index only. */ 5737 rpi_hdr->start_rpi = curr_rpi_range; 5738 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 5739 5740 /* 5741 * The next_rpi stores the next logical module-64 rpi value used 5742 * to post physical rpis in subsequent rpi postings. 5743 */ 5744 phba->sli4_hba.next_rpi += rpi_count; 5745 spin_unlock_irq(&phba->hbalock); 5746 return rpi_hdr; 5747 5748 err_free_coherent: 5749 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 5750 dmabuf->virt, dmabuf->phys); 5751 err_free_dmabuf: 5752 kfree(dmabuf); 5753 return NULL; 5754 } 5755 5756 /** 5757 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 5758 * @phba: pointer to lpfc hba data structure. 5759 * 5760 * This routine is invoked to remove all memory resources allocated 5761 * to support rpis for SLI4 ports not supporting extents. This routine 5762 * presumes the caller has released all rpis consumed by fabric or port 5763 * logins and is prepared to have the header pages removed. 5764 **/ 5765 void 5766 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 5767 { 5768 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 5769 5770 if (!phba->sli4_hba.rpi_hdrs_in_use) 5771 goto exit; 5772 5773 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 5774 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 5775 list_del(&rpi_hdr->list); 5776 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 5777 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 5778 kfree(rpi_hdr->dmabuf); 5779 kfree(rpi_hdr); 5780 } 5781 exit: 5782 /* There are no rpis available to the port now. */ 5783 phba->sli4_hba.next_rpi = 0; 5784 } 5785 5786 /** 5787 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 5788 * @pdev: pointer to pci device data structure. 5789 * 5790 * This routine is invoked to allocate the driver hba data structure for an 5791 * HBA device. If the allocation is successful, the phba reference to the 5792 * PCI device data structure is set. 5793 * 5794 * Return codes 5795 * pointer to @phba - successful 5796 * NULL - error 5797 **/ 5798 static struct lpfc_hba * 5799 lpfc_hba_alloc(struct pci_dev *pdev) 5800 { 5801 struct lpfc_hba *phba; 5802 5803 /* Allocate memory for HBA structure */ 5804 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 5805 if (!phba) { 5806 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 5807 return NULL; 5808 } 5809 5810 /* Set reference to PCI device in HBA structure */ 5811 phba->pcidev = pdev; 5812 5813 /* Assign an unused board number */ 5814 phba->brd_no = lpfc_get_instance(); 5815 if (phba->brd_no < 0) { 5816 kfree(phba); 5817 return NULL; 5818 } 5819 5820 spin_lock_init(&phba->ct_ev_lock); 5821 INIT_LIST_HEAD(&phba->ct_ev_waiters); 5822 5823 return phba; 5824 } 5825 5826 /** 5827 * lpfc_hba_free - Free driver hba data structure with a device. 5828 * @phba: pointer to lpfc hba data structure. 5829 * 5830 * This routine is invoked to free the driver hba data structure with an 5831 * HBA device. 5832 **/ 5833 static void 5834 lpfc_hba_free(struct lpfc_hba *phba) 5835 { 5836 /* Release the driver assigned board number */ 5837 idr_remove(&lpfc_hba_index, phba->brd_no); 5838 5839 /* Free memory allocated with sli rings */ 5840 kfree(phba->sli.ring); 5841 phba->sli.ring = NULL; 5842 5843 kfree(phba); 5844 return; 5845 } 5846 5847 /** 5848 * lpfc_create_shost - Create hba physical port with associated scsi host. 5849 * @phba: pointer to lpfc hba data structure. 5850 * 5851 * This routine is invoked to create HBA physical port and associate a SCSI 5852 * host with it. 5853 * 5854 * Return codes 5855 * 0 - successful 5856 * other values - error 5857 **/ 5858 static int 5859 lpfc_create_shost(struct lpfc_hba *phba) 5860 { 5861 struct lpfc_vport *vport; 5862 struct Scsi_Host *shost; 5863 5864 /* Initialize HBA FC structure */ 5865 phba->fc_edtov = FF_DEF_EDTOV; 5866 phba->fc_ratov = FF_DEF_RATOV; 5867 phba->fc_altov = FF_DEF_ALTOV; 5868 phba->fc_arbtov = FF_DEF_ARBTOV; 5869 5870 atomic_set(&phba->sdev_cnt, 0); 5871 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 5872 if (!vport) 5873 return -ENODEV; 5874 5875 shost = lpfc_shost_from_vport(vport); 5876 phba->pport = vport; 5877 lpfc_debugfs_initialize(vport); 5878 /* Put reference to SCSI host to driver's device private data */ 5879 pci_set_drvdata(phba->pcidev, shost); 5880 5881 return 0; 5882 } 5883 5884 /** 5885 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 5886 * @phba: pointer to lpfc hba data structure. 5887 * 5888 * This routine is invoked to destroy HBA physical port and the associated 5889 * SCSI host. 5890 **/ 5891 static void 5892 lpfc_destroy_shost(struct lpfc_hba *phba) 5893 { 5894 struct lpfc_vport *vport = phba->pport; 5895 5896 /* Destroy physical port that associated with the SCSI host */ 5897 destroy_port(vport); 5898 5899 return; 5900 } 5901 5902 /** 5903 * lpfc_setup_bg - Setup Block guard structures and debug areas. 5904 * @phba: pointer to lpfc hba data structure. 5905 * @shost: the shost to be used to detect Block guard settings. 5906 * 5907 * This routine sets up the local Block guard protocol settings for @shost. 5908 * This routine also allocates memory for debugging bg buffers. 5909 **/ 5910 static void 5911 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 5912 { 5913 uint32_t old_mask; 5914 uint32_t old_guard; 5915 5916 int pagecnt = 10; 5917 if (lpfc_prot_mask && lpfc_prot_guard) { 5918 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5919 "1478 Registering BlockGuard with the " 5920 "SCSI layer\n"); 5921 5922 old_mask = lpfc_prot_mask; 5923 old_guard = lpfc_prot_guard; 5924 5925 /* Only allow supported values */ 5926 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 5927 SHOST_DIX_TYPE0_PROTECTION | 5928 SHOST_DIX_TYPE1_PROTECTION); 5929 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC); 5930 5931 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 5932 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 5933 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 5934 5935 if (lpfc_prot_mask && lpfc_prot_guard) { 5936 if ((old_mask != lpfc_prot_mask) || 5937 (old_guard != lpfc_prot_guard)) 5938 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5939 "1475 Registering BlockGuard with the " 5940 "SCSI layer: mask %d guard %d\n", 5941 lpfc_prot_mask, lpfc_prot_guard); 5942 5943 scsi_host_set_prot(shost, lpfc_prot_mask); 5944 scsi_host_set_guard(shost, lpfc_prot_guard); 5945 } else 5946 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5947 "1479 Not Registering BlockGuard with the SCSI " 5948 "layer, Bad protection parameters: %d %d\n", 5949 old_mask, old_guard); 5950 } 5951 5952 if (!_dump_buf_data) { 5953 while (pagecnt) { 5954 spin_lock_init(&_dump_buf_lock); 5955 _dump_buf_data = 5956 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5957 if (_dump_buf_data) { 5958 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5959 "9043 BLKGRD: allocated %d pages for " 5960 "_dump_buf_data at 0x%p\n", 5961 (1 << pagecnt), _dump_buf_data); 5962 _dump_buf_data_order = pagecnt; 5963 memset(_dump_buf_data, 0, 5964 ((1 << PAGE_SHIFT) << pagecnt)); 5965 break; 5966 } else 5967 --pagecnt; 5968 } 5969 if (!_dump_buf_data_order) 5970 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5971 "9044 BLKGRD: ERROR unable to allocate " 5972 "memory for hexdump\n"); 5973 } else 5974 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5975 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 5976 "\n", _dump_buf_data); 5977 if (!_dump_buf_dif) { 5978 while (pagecnt) { 5979 _dump_buf_dif = 5980 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5981 if (_dump_buf_dif) { 5982 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5983 "9046 BLKGRD: allocated %d pages for " 5984 "_dump_buf_dif at 0x%p\n", 5985 (1 << pagecnt), _dump_buf_dif); 5986 _dump_buf_dif_order = pagecnt; 5987 memset(_dump_buf_dif, 0, 5988 ((1 << PAGE_SHIFT) << pagecnt)); 5989 break; 5990 } else 5991 --pagecnt; 5992 } 5993 if (!_dump_buf_dif_order) 5994 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5995 "9047 BLKGRD: ERROR unable to allocate " 5996 "memory for hexdump\n"); 5997 } else 5998 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5999 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 6000 _dump_buf_dif); 6001 } 6002 6003 /** 6004 * lpfc_post_init_setup - Perform necessary device post initialization setup. 6005 * @phba: pointer to lpfc hba data structure. 6006 * 6007 * This routine is invoked to perform all the necessary post initialization 6008 * setup for the device. 6009 **/ 6010 static void 6011 lpfc_post_init_setup(struct lpfc_hba *phba) 6012 { 6013 struct Scsi_Host *shost; 6014 struct lpfc_adapter_event_header adapter_event; 6015 6016 /* Get the default values for Model Name and Description */ 6017 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 6018 6019 /* 6020 * hba setup may have changed the hba_queue_depth so we need to 6021 * adjust the value of can_queue. 6022 */ 6023 shost = pci_get_drvdata(phba->pcidev); 6024 shost->can_queue = phba->cfg_hba_queue_depth - 10; 6025 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 6026 lpfc_setup_bg(phba, shost); 6027 6028 lpfc_host_attrib_init(shost); 6029 6030 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 6031 spin_lock_irq(shost->host_lock); 6032 lpfc_poll_start_timer(phba); 6033 spin_unlock_irq(shost->host_lock); 6034 } 6035 6036 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6037 "0428 Perform SCSI scan\n"); 6038 /* Send board arrival event to upper layer */ 6039 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 6040 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 6041 fc_host_post_vendor_event(shost, fc_get_event_number(), 6042 sizeof(adapter_event), 6043 (char *) &adapter_event, 6044 LPFC_NL_VENDOR_ID); 6045 return; 6046 } 6047 6048 /** 6049 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 6050 * @phba: pointer to lpfc hba data structure. 6051 * 6052 * This routine is invoked to set up the PCI device memory space for device 6053 * with SLI-3 interface spec. 6054 * 6055 * Return codes 6056 * 0 - successful 6057 * other values - error 6058 **/ 6059 static int 6060 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 6061 { 6062 struct pci_dev *pdev; 6063 unsigned long bar0map_len, bar2map_len; 6064 int i, hbq_count; 6065 void *ptr; 6066 int error = -ENODEV; 6067 6068 /* Obtain PCI device reference */ 6069 if (!phba->pcidev) 6070 return error; 6071 else 6072 pdev = phba->pcidev; 6073 6074 /* Set the device DMA mask size */ 6075 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6076 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6077 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6078 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6079 return error; 6080 } 6081 } 6082 6083 /* Get the bus address of Bar0 and Bar2 and the number of bytes 6084 * required by each mapping. 6085 */ 6086 phba->pci_bar0_map = pci_resource_start(pdev, 0); 6087 bar0map_len = pci_resource_len(pdev, 0); 6088 6089 phba->pci_bar2_map = pci_resource_start(pdev, 2); 6090 bar2map_len = pci_resource_len(pdev, 2); 6091 6092 /* Map HBA SLIM to a kernel virtual address. */ 6093 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 6094 if (!phba->slim_memmap_p) { 6095 dev_printk(KERN_ERR, &pdev->dev, 6096 "ioremap failed for SLIM memory.\n"); 6097 goto out; 6098 } 6099 6100 /* Map HBA Control Registers to a kernel virtual address. */ 6101 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 6102 if (!phba->ctrl_regs_memmap_p) { 6103 dev_printk(KERN_ERR, &pdev->dev, 6104 "ioremap failed for HBA control registers.\n"); 6105 goto out_iounmap_slim; 6106 } 6107 6108 /* Allocate memory for SLI-2 structures */ 6109 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 6110 SLI2_SLIM_SIZE, 6111 &phba->slim2p.phys, 6112 GFP_KERNEL); 6113 if (!phba->slim2p.virt) 6114 goto out_iounmap; 6115 6116 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 6117 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 6118 phba->mbox_ext = (phba->slim2p.virt + 6119 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 6120 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 6121 phba->IOCBs = (phba->slim2p.virt + 6122 offsetof(struct lpfc_sli2_slim, IOCBs)); 6123 6124 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 6125 lpfc_sli_hbq_size(), 6126 &phba->hbqslimp.phys, 6127 GFP_KERNEL); 6128 if (!phba->hbqslimp.virt) 6129 goto out_free_slim; 6130 6131 hbq_count = lpfc_sli_hbq_count(); 6132 ptr = phba->hbqslimp.virt; 6133 for (i = 0; i < hbq_count; ++i) { 6134 phba->hbqs[i].hbq_virt = ptr; 6135 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 6136 ptr += (lpfc_hbq_defs[i]->entry_count * 6137 sizeof(struct lpfc_hbq_entry)); 6138 } 6139 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 6140 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 6141 6142 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 6143 6144 INIT_LIST_HEAD(&phba->rb_pend_list); 6145 6146 phba->MBslimaddr = phba->slim_memmap_p; 6147 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 6148 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 6149 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 6150 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 6151 6152 return 0; 6153 6154 out_free_slim: 6155 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6156 phba->slim2p.virt, phba->slim2p.phys); 6157 out_iounmap: 6158 iounmap(phba->ctrl_regs_memmap_p); 6159 out_iounmap_slim: 6160 iounmap(phba->slim_memmap_p); 6161 out: 6162 return error; 6163 } 6164 6165 /** 6166 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 6167 * @phba: pointer to lpfc hba data structure. 6168 * 6169 * This routine is invoked to unset the PCI device memory space for device 6170 * with SLI-3 interface spec. 6171 **/ 6172 static void 6173 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 6174 { 6175 struct pci_dev *pdev; 6176 6177 /* Obtain PCI device reference */ 6178 if (!phba->pcidev) 6179 return; 6180 else 6181 pdev = phba->pcidev; 6182 6183 /* Free coherent DMA memory allocated */ 6184 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 6185 phba->hbqslimp.virt, phba->hbqslimp.phys); 6186 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6187 phba->slim2p.virt, phba->slim2p.phys); 6188 6189 /* I/O memory unmap */ 6190 iounmap(phba->ctrl_regs_memmap_p); 6191 iounmap(phba->slim_memmap_p); 6192 6193 return; 6194 } 6195 6196 /** 6197 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 6198 * @phba: pointer to lpfc hba data structure. 6199 * 6200 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 6201 * done and check status. 6202 * 6203 * Return 0 if successful, otherwise -ENODEV. 6204 **/ 6205 int 6206 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 6207 { 6208 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 6209 struct lpfc_register reg_data; 6210 int i, port_error = 0; 6211 uint32_t if_type; 6212 6213 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 6214 memset(®_data, 0, sizeof(reg_data)); 6215 if (!phba->sli4_hba.PSMPHRregaddr) 6216 return -ENODEV; 6217 6218 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 6219 for (i = 0; i < 3000; i++) { 6220 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 6221 &portsmphr_reg.word0) || 6222 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 6223 /* Port has a fatal POST error, break out */ 6224 port_error = -ENODEV; 6225 break; 6226 } 6227 if (LPFC_POST_STAGE_PORT_READY == 6228 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 6229 break; 6230 msleep(10); 6231 } 6232 6233 /* 6234 * If there was a port error during POST, then don't proceed with 6235 * other register reads as the data may not be valid. Just exit. 6236 */ 6237 if (port_error) { 6238 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6239 "1408 Port Failed POST - portsmphr=0x%x, " 6240 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 6241 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 6242 portsmphr_reg.word0, 6243 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 6244 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 6245 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 6246 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 6247 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 6248 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 6249 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 6250 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 6251 } else { 6252 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6253 "2534 Device Info: SLIFamily=0x%x, " 6254 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 6255 "SLIHint_2=0x%x, FT=0x%x\n", 6256 bf_get(lpfc_sli_intf_sli_family, 6257 &phba->sli4_hba.sli_intf), 6258 bf_get(lpfc_sli_intf_slirev, 6259 &phba->sli4_hba.sli_intf), 6260 bf_get(lpfc_sli_intf_if_type, 6261 &phba->sli4_hba.sli_intf), 6262 bf_get(lpfc_sli_intf_sli_hint1, 6263 &phba->sli4_hba.sli_intf), 6264 bf_get(lpfc_sli_intf_sli_hint2, 6265 &phba->sli4_hba.sli_intf), 6266 bf_get(lpfc_sli_intf_func_type, 6267 &phba->sli4_hba.sli_intf)); 6268 /* 6269 * Check for other Port errors during the initialization 6270 * process. Fail the load if the port did not come up 6271 * correctly. 6272 */ 6273 if_type = bf_get(lpfc_sli_intf_if_type, 6274 &phba->sli4_hba.sli_intf); 6275 switch (if_type) { 6276 case LPFC_SLI_INTF_IF_TYPE_0: 6277 phba->sli4_hba.ue_mask_lo = 6278 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 6279 phba->sli4_hba.ue_mask_hi = 6280 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 6281 uerrlo_reg.word0 = 6282 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 6283 uerrhi_reg.word0 = 6284 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 6285 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 6286 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 6287 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6288 "1422 Unrecoverable Error " 6289 "Detected during POST " 6290 "uerr_lo_reg=0x%x, " 6291 "uerr_hi_reg=0x%x, " 6292 "ue_mask_lo_reg=0x%x, " 6293 "ue_mask_hi_reg=0x%x\n", 6294 uerrlo_reg.word0, 6295 uerrhi_reg.word0, 6296 phba->sli4_hba.ue_mask_lo, 6297 phba->sli4_hba.ue_mask_hi); 6298 port_error = -ENODEV; 6299 } 6300 break; 6301 case LPFC_SLI_INTF_IF_TYPE_2: 6302 /* Final checks. The port status should be clean. */ 6303 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 6304 ®_data.word0) || 6305 (bf_get(lpfc_sliport_status_err, ®_data) && 6306 !bf_get(lpfc_sliport_status_rn, ®_data))) { 6307 phba->work_status[0] = 6308 readl(phba->sli4_hba.u.if_type2. 6309 ERR1regaddr); 6310 phba->work_status[1] = 6311 readl(phba->sli4_hba.u.if_type2. 6312 ERR2regaddr); 6313 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6314 "2888 Unrecoverable port error " 6315 "following POST: port status reg " 6316 "0x%x, port_smphr reg 0x%x, " 6317 "error 1=0x%x, error 2=0x%x\n", 6318 reg_data.word0, 6319 portsmphr_reg.word0, 6320 phba->work_status[0], 6321 phba->work_status[1]); 6322 port_error = -ENODEV; 6323 } 6324 break; 6325 case LPFC_SLI_INTF_IF_TYPE_1: 6326 default: 6327 break; 6328 } 6329 } 6330 return port_error; 6331 } 6332 6333 /** 6334 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 6335 * @phba: pointer to lpfc hba data structure. 6336 * @if_type: The SLI4 interface type getting configured. 6337 * 6338 * This routine is invoked to set up SLI4 BAR0 PCI config space register 6339 * memory map. 6340 **/ 6341 static void 6342 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 6343 { 6344 switch (if_type) { 6345 case LPFC_SLI_INTF_IF_TYPE_0: 6346 phba->sli4_hba.u.if_type0.UERRLOregaddr = 6347 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 6348 phba->sli4_hba.u.if_type0.UERRHIregaddr = 6349 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 6350 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 6351 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 6352 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 6353 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 6354 phba->sli4_hba.SLIINTFregaddr = 6355 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 6356 break; 6357 case LPFC_SLI_INTF_IF_TYPE_2: 6358 phba->sli4_hba.u.if_type2.ERR1regaddr = 6359 phba->sli4_hba.conf_regs_memmap_p + 6360 LPFC_CTL_PORT_ER1_OFFSET; 6361 phba->sli4_hba.u.if_type2.ERR2regaddr = 6362 phba->sli4_hba.conf_regs_memmap_p + 6363 LPFC_CTL_PORT_ER2_OFFSET; 6364 phba->sli4_hba.u.if_type2.CTRLregaddr = 6365 phba->sli4_hba.conf_regs_memmap_p + 6366 LPFC_CTL_PORT_CTL_OFFSET; 6367 phba->sli4_hba.u.if_type2.STATUSregaddr = 6368 phba->sli4_hba.conf_regs_memmap_p + 6369 LPFC_CTL_PORT_STA_OFFSET; 6370 phba->sli4_hba.SLIINTFregaddr = 6371 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 6372 phba->sli4_hba.PSMPHRregaddr = 6373 phba->sli4_hba.conf_regs_memmap_p + 6374 LPFC_CTL_PORT_SEM_OFFSET; 6375 phba->sli4_hba.RQDBregaddr = 6376 phba->sli4_hba.conf_regs_memmap_p + 6377 LPFC_ULP0_RQ_DOORBELL; 6378 phba->sli4_hba.WQDBregaddr = 6379 phba->sli4_hba.conf_regs_memmap_p + 6380 LPFC_ULP0_WQ_DOORBELL; 6381 phba->sli4_hba.EQCQDBregaddr = 6382 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 6383 phba->sli4_hba.MQDBregaddr = 6384 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 6385 phba->sli4_hba.BMBXregaddr = 6386 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 6387 break; 6388 case LPFC_SLI_INTF_IF_TYPE_1: 6389 default: 6390 dev_printk(KERN_ERR, &phba->pcidev->dev, 6391 "FATAL - unsupported SLI4 interface type - %d\n", 6392 if_type); 6393 break; 6394 } 6395 } 6396 6397 /** 6398 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 6399 * @phba: pointer to lpfc hba data structure. 6400 * 6401 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 6402 * memory map. 6403 **/ 6404 static void 6405 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 6406 { 6407 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6408 LPFC_SLIPORT_IF0_SMPHR; 6409 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6410 LPFC_HST_ISR0; 6411 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6412 LPFC_HST_IMR0; 6413 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6414 LPFC_HST_ISCR0; 6415 } 6416 6417 /** 6418 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 6419 * @phba: pointer to lpfc hba data structure. 6420 * @vf: virtual function number 6421 * 6422 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 6423 * based on the given viftual function number, @vf. 6424 * 6425 * Return 0 if successful, otherwise -ENODEV. 6426 **/ 6427 static int 6428 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 6429 { 6430 if (vf > LPFC_VIR_FUNC_MAX) 6431 return -ENODEV; 6432 6433 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6434 vf * LPFC_VFR_PAGE_SIZE + 6435 LPFC_ULP0_RQ_DOORBELL); 6436 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6437 vf * LPFC_VFR_PAGE_SIZE + 6438 LPFC_ULP0_WQ_DOORBELL); 6439 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6440 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 6441 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6442 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 6443 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6444 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 6445 return 0; 6446 } 6447 6448 /** 6449 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 6450 * @phba: pointer to lpfc hba data structure. 6451 * 6452 * This routine is invoked to create the bootstrap mailbox 6453 * region consistent with the SLI-4 interface spec. This 6454 * routine allocates all memory necessary to communicate 6455 * mailbox commands to the port and sets up all alignment 6456 * needs. No locks are expected to be held when calling 6457 * this routine. 6458 * 6459 * Return codes 6460 * 0 - successful 6461 * -ENOMEM - could not allocated memory. 6462 **/ 6463 static int 6464 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 6465 { 6466 uint32_t bmbx_size; 6467 struct lpfc_dmabuf *dmabuf; 6468 struct dma_address *dma_address; 6469 uint32_t pa_addr; 6470 uint64_t phys_addr; 6471 6472 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6473 if (!dmabuf) 6474 return -ENOMEM; 6475 6476 /* 6477 * The bootstrap mailbox region is comprised of 2 parts 6478 * plus an alignment restriction of 16 bytes. 6479 */ 6480 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 6481 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 6482 bmbx_size, 6483 &dmabuf->phys, 6484 GFP_KERNEL); 6485 if (!dmabuf->virt) { 6486 kfree(dmabuf); 6487 return -ENOMEM; 6488 } 6489 memset(dmabuf->virt, 0, bmbx_size); 6490 6491 /* 6492 * Initialize the bootstrap mailbox pointers now so that the register 6493 * operations are simple later. The mailbox dma address is required 6494 * to be 16-byte aligned. Also align the virtual memory as each 6495 * maibox is copied into the bmbx mailbox region before issuing the 6496 * command to the port. 6497 */ 6498 phba->sli4_hba.bmbx.dmabuf = dmabuf; 6499 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 6500 6501 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 6502 LPFC_ALIGN_16_BYTE); 6503 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 6504 LPFC_ALIGN_16_BYTE); 6505 6506 /* 6507 * Set the high and low physical addresses now. The SLI4 alignment 6508 * requirement is 16 bytes and the mailbox is posted to the port 6509 * as two 30-bit addresses. The other data is a bit marking whether 6510 * the 30-bit address is the high or low address. 6511 * Upcast bmbx aphys to 64bits so shift instruction compiles 6512 * clean on 32 bit machines. 6513 */ 6514 dma_address = &phba->sli4_hba.bmbx.dma_address; 6515 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 6516 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 6517 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 6518 LPFC_BMBX_BIT1_ADDR_HI); 6519 6520 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 6521 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 6522 LPFC_BMBX_BIT1_ADDR_LO); 6523 return 0; 6524 } 6525 6526 /** 6527 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 6528 * @phba: pointer to lpfc hba data structure. 6529 * 6530 * This routine is invoked to teardown the bootstrap mailbox 6531 * region and release all host resources. This routine requires 6532 * the caller to ensure all mailbox commands recovered, no 6533 * additional mailbox comands are sent, and interrupts are disabled 6534 * before calling this routine. 6535 * 6536 **/ 6537 static void 6538 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 6539 { 6540 dma_free_coherent(&phba->pcidev->dev, 6541 phba->sli4_hba.bmbx.bmbx_size, 6542 phba->sli4_hba.bmbx.dmabuf->virt, 6543 phba->sli4_hba.bmbx.dmabuf->phys); 6544 6545 kfree(phba->sli4_hba.bmbx.dmabuf); 6546 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 6547 } 6548 6549 /** 6550 * lpfc_sli4_read_config - Get the config parameters. 6551 * @phba: pointer to lpfc hba data structure. 6552 * 6553 * This routine is invoked to read the configuration parameters from the HBA. 6554 * The configuration parameters are used to set the base and maximum values 6555 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 6556 * allocation for the port. 6557 * 6558 * Return codes 6559 * 0 - successful 6560 * -ENOMEM - No available memory 6561 * -EIO - The mailbox failed to complete successfully. 6562 **/ 6563 int 6564 lpfc_sli4_read_config(struct lpfc_hba *phba) 6565 { 6566 LPFC_MBOXQ_t *pmb; 6567 struct lpfc_mbx_read_config *rd_config; 6568 union lpfc_sli4_cfg_shdr *shdr; 6569 uint32_t shdr_status, shdr_add_status; 6570 struct lpfc_mbx_get_func_cfg *get_func_cfg; 6571 struct lpfc_rsrc_desc_fcfcoe *desc; 6572 char *pdesc_0; 6573 uint32_t desc_count; 6574 int length, i, rc = 0, rc2; 6575 6576 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6577 if (!pmb) { 6578 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6579 "2011 Unable to allocate memory for issuing " 6580 "SLI_CONFIG_SPECIAL mailbox command\n"); 6581 return -ENOMEM; 6582 } 6583 6584 lpfc_read_config(phba, pmb); 6585 6586 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6587 if (rc != MBX_SUCCESS) { 6588 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6589 "2012 Mailbox failed , mbxCmd x%x " 6590 "READ_CONFIG, mbxStatus x%x\n", 6591 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6592 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6593 rc = -EIO; 6594 } else { 6595 rd_config = &pmb->u.mqe.un.rd_config; 6596 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 6597 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 6598 phba->sli4_hba.lnk_info.lnk_tp = 6599 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 6600 phba->sli4_hba.lnk_info.lnk_no = 6601 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 6602 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6603 "3081 lnk_type:%d, lnk_numb:%d\n", 6604 phba->sli4_hba.lnk_info.lnk_tp, 6605 phba->sli4_hba.lnk_info.lnk_no); 6606 } else 6607 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 6608 "3082 Mailbox (x%x) returned ldv:x0\n", 6609 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 6610 phba->sli4_hba.extents_in_use = 6611 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 6612 phba->sli4_hba.max_cfg_param.max_xri = 6613 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 6614 phba->sli4_hba.max_cfg_param.xri_base = 6615 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 6616 phba->sli4_hba.max_cfg_param.max_vpi = 6617 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 6618 phba->sli4_hba.max_cfg_param.vpi_base = 6619 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 6620 phba->sli4_hba.max_cfg_param.max_rpi = 6621 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 6622 phba->sli4_hba.max_cfg_param.rpi_base = 6623 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 6624 phba->sli4_hba.max_cfg_param.max_vfi = 6625 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 6626 phba->sli4_hba.max_cfg_param.vfi_base = 6627 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 6628 phba->sli4_hba.max_cfg_param.max_fcfi = 6629 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 6630 phba->sli4_hba.max_cfg_param.max_eq = 6631 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 6632 phba->sli4_hba.max_cfg_param.max_rq = 6633 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 6634 phba->sli4_hba.max_cfg_param.max_wq = 6635 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 6636 phba->sli4_hba.max_cfg_param.max_cq = 6637 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 6638 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 6639 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 6640 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 6641 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 6642 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 6643 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 6644 phba->max_vports = phba->max_vpi; 6645 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6646 "2003 cfg params Extents? %d " 6647 "XRI(B:%d M:%d), " 6648 "VPI(B:%d M:%d) " 6649 "VFI(B:%d M:%d) " 6650 "RPI(B:%d M:%d) " 6651 "FCFI(Count:%d)\n", 6652 phba->sli4_hba.extents_in_use, 6653 phba->sli4_hba.max_cfg_param.xri_base, 6654 phba->sli4_hba.max_cfg_param.max_xri, 6655 phba->sli4_hba.max_cfg_param.vpi_base, 6656 phba->sli4_hba.max_cfg_param.max_vpi, 6657 phba->sli4_hba.max_cfg_param.vfi_base, 6658 phba->sli4_hba.max_cfg_param.max_vfi, 6659 phba->sli4_hba.max_cfg_param.rpi_base, 6660 phba->sli4_hba.max_cfg_param.max_rpi, 6661 phba->sli4_hba.max_cfg_param.max_fcfi); 6662 } 6663 6664 if (rc) 6665 goto read_cfg_out; 6666 6667 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 6668 length = phba->sli4_hba.max_cfg_param.max_xri - 6669 lpfc_sli4_get_els_iocb_cnt(phba); 6670 if (phba->cfg_hba_queue_depth > length) { 6671 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6672 "3361 HBA queue depth changed from %d to %d\n", 6673 phba->cfg_hba_queue_depth, length); 6674 phba->cfg_hba_queue_depth = length; 6675 } 6676 6677 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 6678 LPFC_SLI_INTF_IF_TYPE_2) 6679 goto read_cfg_out; 6680 6681 /* get the pf# and vf# for SLI4 if_type 2 port */ 6682 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 6683 sizeof(struct lpfc_sli4_cfg_mhdr)); 6684 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 6685 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 6686 length, LPFC_SLI4_MBX_EMBED); 6687 6688 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6689 shdr = (union lpfc_sli4_cfg_shdr *) 6690 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 6691 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6692 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6693 if (rc2 || shdr_status || shdr_add_status) { 6694 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6695 "3026 Mailbox failed , mbxCmd x%x " 6696 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 6697 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6698 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6699 goto read_cfg_out; 6700 } 6701 6702 /* search for fc_fcoe resrouce descriptor */ 6703 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 6704 desc_count = get_func_cfg->func_cfg.rsrc_desc_count; 6705 6706 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 6707 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 6708 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 6709 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 6710 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 6711 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 6712 goto read_cfg_out; 6713 6714 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 6715 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 6716 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 6717 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 6718 phba->sli4_hba.iov.pf_number = 6719 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 6720 phba->sli4_hba.iov.vf_number = 6721 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 6722 break; 6723 } 6724 } 6725 6726 if (i < LPFC_RSRC_DESC_MAX_NUM) 6727 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6728 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 6729 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 6730 phba->sli4_hba.iov.vf_number); 6731 else 6732 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6733 "3028 GET_FUNCTION_CONFIG: failed to find " 6734 "Resrouce Descriptor:x%x\n", 6735 LPFC_RSRC_DESC_TYPE_FCFCOE); 6736 6737 read_cfg_out: 6738 mempool_free(pmb, phba->mbox_mem_pool); 6739 return rc; 6740 } 6741 6742 /** 6743 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 6744 * @phba: pointer to lpfc hba data structure. 6745 * 6746 * This routine is invoked to setup the port-side endian order when 6747 * the port if_type is 0. This routine has no function for other 6748 * if_types. 6749 * 6750 * Return codes 6751 * 0 - successful 6752 * -ENOMEM - No available memory 6753 * -EIO - The mailbox failed to complete successfully. 6754 **/ 6755 static int 6756 lpfc_setup_endian_order(struct lpfc_hba *phba) 6757 { 6758 LPFC_MBOXQ_t *mboxq; 6759 uint32_t if_type, rc = 0; 6760 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 6761 HOST_ENDIAN_HIGH_WORD1}; 6762 6763 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 6764 switch (if_type) { 6765 case LPFC_SLI_INTF_IF_TYPE_0: 6766 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6767 GFP_KERNEL); 6768 if (!mboxq) { 6769 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6770 "0492 Unable to allocate memory for " 6771 "issuing SLI_CONFIG_SPECIAL mailbox " 6772 "command\n"); 6773 return -ENOMEM; 6774 } 6775 6776 /* 6777 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 6778 * two words to contain special data values and no other data. 6779 */ 6780 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 6781 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 6782 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6783 if (rc != MBX_SUCCESS) { 6784 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6785 "0493 SLI_CONFIG_SPECIAL mailbox " 6786 "failed with status x%x\n", 6787 rc); 6788 rc = -EIO; 6789 } 6790 mempool_free(mboxq, phba->mbox_mem_pool); 6791 break; 6792 case LPFC_SLI_INTF_IF_TYPE_2: 6793 case LPFC_SLI_INTF_IF_TYPE_1: 6794 default: 6795 break; 6796 } 6797 return rc; 6798 } 6799 6800 /** 6801 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts 6802 * @phba: pointer to lpfc hba data structure. 6803 * 6804 * This routine is invoked to check the user settable queue counts for EQs and 6805 * CQs. after this routine is called the counts will be set to valid values that 6806 * adhere to the constraints of the system's interrupt vectors and the port's 6807 * queue resources. 6808 * 6809 * Return codes 6810 * 0 - successful 6811 * -ENOMEM - No available memory 6812 **/ 6813 static int 6814 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 6815 { 6816 int cfg_fcp_io_channel; 6817 uint32_t cpu; 6818 uint32_t i = 0; 6819 6820 /* 6821 * Sanity check for configured queue parameters against the run-time 6822 * device parameters 6823 */ 6824 6825 /* Sanity check on HBA EQ parameters */ 6826 cfg_fcp_io_channel = phba->cfg_fcp_io_channel; 6827 6828 /* It doesn't make sense to have more io channels then online CPUs */ 6829 for_each_present_cpu(cpu) { 6830 if (cpu_online(cpu)) 6831 i++; 6832 } 6833 phba->sli4_hba.num_online_cpu = i; 6834 phba->sli4_hba.num_present_cpu = lpfc_present_cpu; 6835 6836 if (i < cfg_fcp_io_channel) { 6837 lpfc_printf_log(phba, 6838 KERN_ERR, LOG_INIT, 6839 "3188 Reducing IO channels to match number of " 6840 "online CPUs: from %d to %d\n", 6841 cfg_fcp_io_channel, i); 6842 cfg_fcp_io_channel = i; 6843 } 6844 6845 if (cfg_fcp_io_channel > 6846 phba->sli4_hba.max_cfg_param.max_eq) { 6847 if (phba->sli4_hba.max_cfg_param.max_eq < 6848 LPFC_FCP_IO_CHAN_MIN) { 6849 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6850 "2574 Not enough EQs (%d) from the " 6851 "pci function for supporting FCP " 6852 "EQs (%d)\n", 6853 phba->sli4_hba.max_cfg_param.max_eq, 6854 phba->cfg_fcp_io_channel); 6855 goto out_error; 6856 } 6857 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6858 "2575 Reducing IO channels to match number of " 6859 "available EQs: from %d to %d\n", 6860 cfg_fcp_io_channel, 6861 phba->sli4_hba.max_cfg_param.max_eq); 6862 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq; 6863 } 6864 6865 /* The actual number of FCP event queues adopted */ 6866 phba->cfg_fcp_io_channel = cfg_fcp_io_channel; 6867 6868 /* Get EQ depth from module parameter, fake the default for now */ 6869 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 6870 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 6871 6872 /* Get CQ depth from module parameter, fake the default for now */ 6873 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 6874 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 6875 6876 return 0; 6877 out_error: 6878 return -ENOMEM; 6879 } 6880 6881 /** 6882 * lpfc_sli4_queue_create - Create all the SLI4 queues 6883 * @phba: pointer to lpfc hba data structure. 6884 * 6885 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 6886 * operation. For each SLI4 queue type, the parameters such as queue entry 6887 * count (queue depth) shall be taken from the module parameter. For now, 6888 * we just use some constant number as place holder. 6889 * 6890 * Return codes 6891 * 0 - successful 6892 * -ENOMEM - No availble memory 6893 * -EIO - The mailbox failed to complete successfully. 6894 **/ 6895 int 6896 lpfc_sli4_queue_create(struct lpfc_hba *phba) 6897 { 6898 struct lpfc_queue *qdesc; 6899 int idx; 6900 6901 /* 6902 * Create HBA Record arrays. 6903 */ 6904 if (!phba->cfg_fcp_io_channel) 6905 return -ERANGE; 6906 6907 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 6908 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 6909 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 6910 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 6911 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 6912 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 6913 6914 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) * 6915 phba->cfg_fcp_io_channel), GFP_KERNEL); 6916 if (!phba->sli4_hba.hba_eq) { 6917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6918 "2576 Failed allocate memory for " 6919 "fast-path EQ record array\n"); 6920 goto out_error; 6921 } 6922 6923 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 6924 phba->cfg_fcp_io_channel), GFP_KERNEL); 6925 if (!phba->sli4_hba.fcp_cq) { 6926 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6927 "2577 Failed allocate memory for fast-path " 6928 "CQ record array\n"); 6929 goto out_error; 6930 } 6931 6932 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 6933 phba->cfg_fcp_io_channel), GFP_KERNEL); 6934 if (!phba->sli4_hba.fcp_wq) { 6935 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6936 "2578 Failed allocate memory for fast-path " 6937 "WQ record array\n"); 6938 goto out_error; 6939 } 6940 6941 /* 6942 * Since the first EQ can have multiple CQs associated with it, 6943 * this array is used to quickly see if we have a FCP fast-path 6944 * CQ match. 6945 */ 6946 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) * 6947 phba->cfg_fcp_io_channel), GFP_KERNEL); 6948 if (!phba->sli4_hba.fcp_cq_map) { 6949 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6950 "2545 Failed allocate memory for fast-path " 6951 "CQ map\n"); 6952 goto out_error; 6953 } 6954 6955 /* 6956 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies 6957 * how many EQs to create. 6958 */ 6959 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 6960 6961 /* Create EQs */ 6962 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6963 phba->sli4_hba.eq_ecount); 6964 if (!qdesc) { 6965 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6966 "0497 Failed allocate EQ (%d)\n", idx); 6967 goto out_error; 6968 } 6969 phba->sli4_hba.hba_eq[idx] = qdesc; 6970 6971 /* Create Fast Path FCP CQs */ 6972 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6973 phba->sli4_hba.cq_ecount); 6974 if (!qdesc) { 6975 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6976 "0499 Failed allocate fast-path FCP " 6977 "CQ (%d)\n", idx); 6978 goto out_error; 6979 } 6980 phba->sli4_hba.fcp_cq[idx] = qdesc; 6981 6982 /* Create Fast Path FCP WQs */ 6983 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6984 phba->sli4_hba.wq_ecount); 6985 if (!qdesc) { 6986 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6987 "0503 Failed allocate fast-path FCP " 6988 "WQ (%d)\n", idx); 6989 goto out_error; 6990 } 6991 phba->sli4_hba.fcp_wq[idx] = qdesc; 6992 } 6993 6994 6995 /* 6996 * Create Slow Path Completion Queues (CQs) 6997 */ 6998 6999 /* Create slow-path Mailbox Command Complete Queue */ 7000 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7001 phba->sli4_hba.cq_ecount); 7002 if (!qdesc) { 7003 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7004 "0500 Failed allocate slow-path mailbox CQ\n"); 7005 goto out_error; 7006 } 7007 phba->sli4_hba.mbx_cq = qdesc; 7008 7009 /* Create slow-path ELS Complete Queue */ 7010 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7011 phba->sli4_hba.cq_ecount); 7012 if (!qdesc) { 7013 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7014 "0501 Failed allocate slow-path ELS CQ\n"); 7015 goto out_error; 7016 } 7017 phba->sli4_hba.els_cq = qdesc; 7018 7019 7020 /* 7021 * Create Slow Path Work Queues (WQs) 7022 */ 7023 7024 /* Create Mailbox Command Queue */ 7025 7026 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 7027 phba->sli4_hba.mq_ecount); 7028 if (!qdesc) { 7029 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7030 "0505 Failed allocate slow-path MQ\n"); 7031 goto out_error; 7032 } 7033 phba->sli4_hba.mbx_wq = qdesc; 7034 7035 /* 7036 * Create ELS Work Queues 7037 */ 7038 7039 /* Create slow-path ELS Work Queue */ 7040 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 7041 phba->sli4_hba.wq_ecount); 7042 if (!qdesc) { 7043 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7044 "0504 Failed allocate slow-path ELS WQ\n"); 7045 goto out_error; 7046 } 7047 phba->sli4_hba.els_wq = qdesc; 7048 7049 /* 7050 * Create Receive Queue (RQ) 7051 */ 7052 7053 /* Create Receive Queue for header */ 7054 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 7055 phba->sli4_hba.rq_ecount); 7056 if (!qdesc) { 7057 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7058 "0506 Failed allocate receive HRQ\n"); 7059 goto out_error; 7060 } 7061 phba->sli4_hba.hdr_rq = qdesc; 7062 7063 /* Create Receive Queue for data */ 7064 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 7065 phba->sli4_hba.rq_ecount); 7066 if (!qdesc) { 7067 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7068 "0507 Failed allocate receive DRQ\n"); 7069 goto out_error; 7070 } 7071 phba->sli4_hba.dat_rq = qdesc; 7072 7073 return 0; 7074 7075 out_error: 7076 lpfc_sli4_queue_destroy(phba); 7077 return -ENOMEM; 7078 } 7079 7080 /** 7081 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 7082 * @phba: pointer to lpfc hba data structure. 7083 * 7084 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 7085 * operation. 7086 * 7087 * Return codes 7088 * 0 - successful 7089 * -ENOMEM - No available memory 7090 * -EIO - The mailbox failed to complete successfully. 7091 **/ 7092 void 7093 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 7094 { 7095 int idx; 7096 7097 if (phba->sli4_hba.hba_eq != NULL) { 7098 /* Release HBA event queue */ 7099 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 7100 if (phba->sli4_hba.hba_eq[idx] != NULL) { 7101 lpfc_sli4_queue_free( 7102 phba->sli4_hba.hba_eq[idx]); 7103 phba->sli4_hba.hba_eq[idx] = NULL; 7104 } 7105 } 7106 kfree(phba->sli4_hba.hba_eq); 7107 phba->sli4_hba.hba_eq = NULL; 7108 } 7109 7110 if (phba->sli4_hba.fcp_cq != NULL) { 7111 /* Release FCP completion queue */ 7112 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 7113 if (phba->sli4_hba.fcp_cq[idx] != NULL) { 7114 lpfc_sli4_queue_free( 7115 phba->sli4_hba.fcp_cq[idx]); 7116 phba->sli4_hba.fcp_cq[idx] = NULL; 7117 } 7118 } 7119 kfree(phba->sli4_hba.fcp_cq); 7120 phba->sli4_hba.fcp_cq = NULL; 7121 } 7122 7123 if (phba->sli4_hba.fcp_wq != NULL) { 7124 /* Release FCP work queue */ 7125 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 7126 if (phba->sli4_hba.fcp_wq[idx] != NULL) { 7127 lpfc_sli4_queue_free( 7128 phba->sli4_hba.fcp_wq[idx]); 7129 phba->sli4_hba.fcp_wq[idx] = NULL; 7130 } 7131 } 7132 kfree(phba->sli4_hba.fcp_wq); 7133 phba->sli4_hba.fcp_wq = NULL; 7134 } 7135 7136 /* Release FCP CQ mapping array */ 7137 if (phba->sli4_hba.fcp_cq_map != NULL) { 7138 kfree(phba->sli4_hba.fcp_cq_map); 7139 phba->sli4_hba.fcp_cq_map = NULL; 7140 } 7141 7142 /* Release mailbox command work queue */ 7143 if (phba->sli4_hba.mbx_wq != NULL) { 7144 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 7145 phba->sli4_hba.mbx_wq = NULL; 7146 } 7147 7148 /* Release ELS work queue */ 7149 if (phba->sli4_hba.els_wq != NULL) { 7150 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 7151 phba->sli4_hba.els_wq = NULL; 7152 } 7153 7154 /* Release unsolicited receive queue */ 7155 if (phba->sli4_hba.hdr_rq != NULL) { 7156 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 7157 phba->sli4_hba.hdr_rq = NULL; 7158 } 7159 if (phba->sli4_hba.dat_rq != NULL) { 7160 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 7161 phba->sli4_hba.dat_rq = NULL; 7162 } 7163 7164 /* Release ELS complete queue */ 7165 if (phba->sli4_hba.els_cq != NULL) { 7166 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 7167 phba->sli4_hba.els_cq = NULL; 7168 } 7169 7170 /* Release mailbox command complete queue */ 7171 if (phba->sli4_hba.mbx_cq != NULL) { 7172 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 7173 phba->sli4_hba.mbx_cq = NULL; 7174 } 7175 7176 return; 7177 } 7178 7179 /** 7180 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 7181 * @phba: pointer to lpfc hba data structure. 7182 * 7183 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 7184 * operation. 7185 * 7186 * Return codes 7187 * 0 - successful 7188 * -ENOMEM - No available memory 7189 * -EIO - The mailbox failed to complete successfully. 7190 **/ 7191 int 7192 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 7193 { 7194 struct lpfc_sli *psli = &phba->sli; 7195 struct lpfc_sli_ring *pring; 7196 int rc = -ENOMEM; 7197 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 7198 int fcp_cq_index = 0; 7199 uint32_t shdr_status, shdr_add_status; 7200 union lpfc_sli4_cfg_shdr *shdr; 7201 LPFC_MBOXQ_t *mboxq; 7202 uint32_t length; 7203 7204 /* Check for dual-ULP support */ 7205 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7206 if (!mboxq) { 7207 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7208 "3249 Unable to allocate memory for " 7209 "QUERY_FW_CFG mailbox command\n"); 7210 return -ENOMEM; 7211 } 7212 length = (sizeof(struct lpfc_mbx_query_fw_config) - 7213 sizeof(struct lpfc_sli4_cfg_mhdr)); 7214 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7215 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 7216 length, LPFC_SLI4_MBX_EMBED); 7217 7218 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7219 7220 shdr = (union lpfc_sli4_cfg_shdr *) 7221 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7222 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7223 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7224 if (shdr_status || shdr_add_status || rc) { 7225 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7226 "3250 QUERY_FW_CFG mailbox failed with status " 7227 "x%x add_status x%x, mbx status x%x\n", 7228 shdr_status, shdr_add_status, rc); 7229 if (rc != MBX_TIMEOUT) 7230 mempool_free(mboxq, phba->mbox_mem_pool); 7231 rc = -ENXIO; 7232 goto out_error; 7233 } 7234 7235 phba->sli4_hba.fw_func_mode = 7236 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; 7237 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; 7238 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; 7239 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7240 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " 7241 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, 7242 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); 7243 7244 if (rc != MBX_TIMEOUT) 7245 mempool_free(mboxq, phba->mbox_mem_pool); 7246 7247 /* 7248 * Set up HBA Event Queues (EQs) 7249 */ 7250 7251 /* Set up HBA event queue */ 7252 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) { 7253 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7254 "3147 Fast-path EQs not allocated\n"); 7255 rc = -ENOMEM; 7256 goto out_error; 7257 } 7258 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) { 7259 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) { 7260 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7261 "0522 Fast-path EQ (%d) not " 7262 "allocated\n", fcp_eqidx); 7263 rc = -ENOMEM; 7264 goto out_destroy_hba_eq; 7265 } 7266 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx], 7267 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel)); 7268 if (rc) { 7269 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7270 "0523 Failed setup of fast-path EQ " 7271 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 7272 goto out_destroy_hba_eq; 7273 } 7274 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7275 "2584 HBA EQ setup: " 7276 "queue[%d]-id=%d\n", fcp_eqidx, 7277 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id); 7278 } 7279 7280 /* Set up fast-path FCP Response Complete Queue */ 7281 if (!phba->sli4_hba.fcp_cq) { 7282 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7283 "3148 Fast-path FCP CQ array not " 7284 "allocated\n"); 7285 rc = -ENOMEM; 7286 goto out_destroy_hba_eq; 7287 } 7288 7289 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) { 7290 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 7291 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7292 "0526 Fast-path FCP CQ (%d) not " 7293 "allocated\n", fcp_cqidx); 7294 rc = -ENOMEM; 7295 goto out_destroy_fcp_cq; 7296 } 7297 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 7298 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP); 7299 if (rc) { 7300 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7301 "0527 Failed setup of fast-path FCP " 7302 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 7303 goto out_destroy_fcp_cq; 7304 } 7305 7306 /* Setup fcp_cq_map for fast lookup */ 7307 phba->sli4_hba.fcp_cq_map[fcp_cqidx] = 7308 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id; 7309 7310 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7311 "2588 FCP CQ setup: cq[%d]-id=%d, " 7312 "parent seq[%d]-id=%d\n", 7313 fcp_cqidx, 7314 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 7315 fcp_cqidx, 7316 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id); 7317 } 7318 7319 /* Set up fast-path FCP Work Queue */ 7320 if (!phba->sli4_hba.fcp_wq) { 7321 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7322 "3149 Fast-path FCP WQ array not " 7323 "allocated\n"); 7324 rc = -ENOMEM; 7325 goto out_destroy_fcp_cq; 7326 } 7327 7328 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) { 7329 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 7330 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7331 "0534 Fast-path FCP WQ (%d) not " 7332 "allocated\n", fcp_wqidx); 7333 rc = -ENOMEM; 7334 goto out_destroy_fcp_wq; 7335 } 7336 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 7337 phba->sli4_hba.fcp_cq[fcp_wqidx], 7338 LPFC_FCP); 7339 if (rc) { 7340 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7341 "0535 Failed setup of fast-path FCP " 7342 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 7343 goto out_destroy_fcp_wq; 7344 } 7345 7346 /* Bind this WQ to the next FCP ring */ 7347 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx]; 7348 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx]; 7349 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring; 7350 7351 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7352 "2591 FCP WQ setup: wq[%d]-id=%d, " 7353 "parent cq[%d]-id=%d\n", 7354 fcp_wqidx, 7355 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 7356 fcp_cq_index, 7357 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id); 7358 } 7359 /* 7360 * Set up Complete Queues (CQs) 7361 */ 7362 7363 /* Set up slow-path MBOX Complete Queue as the first CQ */ 7364 if (!phba->sli4_hba.mbx_cq) { 7365 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7366 "0528 Mailbox CQ not allocated\n"); 7367 rc = -ENOMEM; 7368 goto out_destroy_fcp_wq; 7369 } 7370 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, 7371 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX); 7372 if (rc) { 7373 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7374 "0529 Failed setup of slow-path mailbox CQ: " 7375 "rc = 0x%x\n", rc); 7376 goto out_destroy_fcp_wq; 7377 } 7378 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7379 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 7380 phba->sli4_hba.mbx_cq->queue_id, 7381 phba->sli4_hba.hba_eq[0]->queue_id); 7382 7383 /* Set up slow-path ELS Complete Queue */ 7384 if (!phba->sli4_hba.els_cq) { 7385 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7386 "0530 ELS CQ not allocated\n"); 7387 rc = -ENOMEM; 7388 goto out_destroy_mbx_cq; 7389 } 7390 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, 7391 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS); 7392 if (rc) { 7393 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7394 "0531 Failed setup of slow-path ELS CQ: " 7395 "rc = 0x%x\n", rc); 7396 goto out_destroy_mbx_cq; 7397 } 7398 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7399 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 7400 phba->sli4_hba.els_cq->queue_id, 7401 phba->sli4_hba.hba_eq[0]->queue_id); 7402 7403 /* 7404 * Set up all the Work Queues (WQs) 7405 */ 7406 7407 /* Set up Mailbox Command Queue */ 7408 if (!phba->sli4_hba.mbx_wq) { 7409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7410 "0538 Slow-path MQ not allocated\n"); 7411 rc = -ENOMEM; 7412 goto out_destroy_els_cq; 7413 } 7414 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 7415 phba->sli4_hba.mbx_cq, LPFC_MBOX); 7416 if (rc) { 7417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7418 "0539 Failed setup of slow-path MQ: " 7419 "rc = 0x%x\n", rc); 7420 goto out_destroy_els_cq; 7421 } 7422 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7423 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 7424 phba->sli4_hba.mbx_wq->queue_id, 7425 phba->sli4_hba.mbx_cq->queue_id); 7426 7427 /* Set up slow-path ELS Work Queue */ 7428 if (!phba->sli4_hba.els_wq) { 7429 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7430 "0536 Slow-path ELS WQ not allocated\n"); 7431 rc = -ENOMEM; 7432 goto out_destroy_mbx_wq; 7433 } 7434 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 7435 phba->sli4_hba.els_cq, LPFC_ELS); 7436 if (rc) { 7437 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7438 "0537 Failed setup of slow-path ELS WQ: " 7439 "rc = 0x%x\n", rc); 7440 goto out_destroy_mbx_wq; 7441 } 7442 7443 /* Bind this WQ to the ELS ring */ 7444 pring = &psli->ring[LPFC_ELS_RING]; 7445 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq; 7446 phba->sli4_hba.els_cq->pring = pring; 7447 7448 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7449 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 7450 phba->sli4_hba.els_wq->queue_id, 7451 phba->sli4_hba.els_cq->queue_id); 7452 7453 /* 7454 * Create Receive Queue (RQ) 7455 */ 7456 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 7457 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7458 "0540 Receive Queue not allocated\n"); 7459 rc = -ENOMEM; 7460 goto out_destroy_els_wq; 7461 } 7462 7463 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ); 7464 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ); 7465 7466 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 7467 phba->sli4_hba.els_cq, LPFC_USOL); 7468 if (rc) { 7469 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7470 "0541 Failed setup of Receive Queue: " 7471 "rc = 0x%x\n", rc); 7472 goto out_destroy_fcp_wq; 7473 } 7474 7475 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7476 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 7477 "parent cq-id=%d\n", 7478 phba->sli4_hba.hdr_rq->queue_id, 7479 phba->sli4_hba.dat_rq->queue_id, 7480 phba->sli4_hba.els_cq->queue_id); 7481 return 0; 7482 7483 out_destroy_els_wq: 7484 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7485 out_destroy_mbx_wq: 7486 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7487 out_destroy_els_cq: 7488 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7489 out_destroy_mbx_cq: 7490 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7491 out_destroy_fcp_wq: 7492 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 7493 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 7494 out_destroy_fcp_cq: 7495 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 7496 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 7497 out_destroy_hba_eq: 7498 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 7499 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]); 7500 out_error: 7501 return rc; 7502 } 7503 7504 /** 7505 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 7506 * @phba: pointer to lpfc hba data structure. 7507 * 7508 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 7509 * operation. 7510 * 7511 * Return codes 7512 * 0 - successful 7513 * -ENOMEM - No available memory 7514 * -EIO - The mailbox failed to complete successfully. 7515 **/ 7516 void 7517 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 7518 { 7519 int fcp_qidx; 7520 7521 /* Unset mailbox command work queue */ 7522 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7523 /* Unset ELS work queue */ 7524 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7525 /* Unset unsolicited receive queue */ 7526 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 7527 /* Unset FCP work queue */ 7528 if (phba->sli4_hba.fcp_wq) { 7529 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7530 fcp_qidx++) 7531 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 7532 } 7533 /* Unset mailbox command complete queue */ 7534 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7535 /* Unset ELS complete queue */ 7536 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7537 /* Unset FCP response complete queue */ 7538 if (phba->sli4_hba.fcp_cq) { 7539 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7540 fcp_qidx++) 7541 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 7542 } 7543 /* Unset fast-path event queue */ 7544 if (phba->sli4_hba.hba_eq) { 7545 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7546 fcp_qidx++) 7547 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]); 7548 } 7549 } 7550 7551 /** 7552 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 7553 * @phba: pointer to lpfc hba data structure. 7554 * 7555 * This routine is invoked to allocate and set up a pool of completion queue 7556 * events. The body of the completion queue event is a completion queue entry 7557 * CQE. For now, this pool is used for the interrupt service routine to queue 7558 * the following HBA completion queue events for the worker thread to process: 7559 * - Mailbox asynchronous events 7560 * - Receive queue completion unsolicited events 7561 * Later, this can be used for all the slow-path events. 7562 * 7563 * Return codes 7564 * 0 - successful 7565 * -ENOMEM - No available memory 7566 **/ 7567 static int 7568 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 7569 { 7570 struct lpfc_cq_event *cq_event; 7571 int i; 7572 7573 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 7574 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 7575 if (!cq_event) 7576 goto out_pool_create_fail; 7577 list_add_tail(&cq_event->list, 7578 &phba->sli4_hba.sp_cqe_event_pool); 7579 } 7580 return 0; 7581 7582 out_pool_create_fail: 7583 lpfc_sli4_cq_event_pool_destroy(phba); 7584 return -ENOMEM; 7585 } 7586 7587 /** 7588 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 7589 * @phba: pointer to lpfc hba data structure. 7590 * 7591 * This routine is invoked to free the pool of completion queue events at 7592 * driver unload time. Note that, it is the responsibility of the driver 7593 * cleanup routine to free all the outstanding completion-queue events 7594 * allocated from this pool back into the pool before invoking this routine 7595 * to destroy the pool. 7596 **/ 7597 static void 7598 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 7599 { 7600 struct lpfc_cq_event *cq_event, *next_cq_event; 7601 7602 list_for_each_entry_safe(cq_event, next_cq_event, 7603 &phba->sli4_hba.sp_cqe_event_pool, list) { 7604 list_del(&cq_event->list); 7605 kfree(cq_event); 7606 } 7607 } 7608 7609 /** 7610 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7611 * @phba: pointer to lpfc hba data structure. 7612 * 7613 * This routine is the lock free version of the API invoked to allocate a 7614 * completion-queue event from the free pool. 7615 * 7616 * Return: Pointer to the newly allocated completion-queue event if successful 7617 * NULL otherwise. 7618 **/ 7619 struct lpfc_cq_event * 7620 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7621 { 7622 struct lpfc_cq_event *cq_event = NULL; 7623 7624 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 7625 struct lpfc_cq_event, list); 7626 return cq_event; 7627 } 7628 7629 /** 7630 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7631 * @phba: pointer to lpfc hba data structure. 7632 * 7633 * This routine is the lock version of the API invoked to allocate a 7634 * completion-queue event from the free pool. 7635 * 7636 * Return: Pointer to the newly allocated completion-queue event if successful 7637 * NULL otherwise. 7638 **/ 7639 struct lpfc_cq_event * 7640 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7641 { 7642 struct lpfc_cq_event *cq_event; 7643 unsigned long iflags; 7644 7645 spin_lock_irqsave(&phba->hbalock, iflags); 7646 cq_event = __lpfc_sli4_cq_event_alloc(phba); 7647 spin_unlock_irqrestore(&phba->hbalock, iflags); 7648 return cq_event; 7649 } 7650 7651 /** 7652 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7653 * @phba: pointer to lpfc hba data structure. 7654 * @cq_event: pointer to the completion queue event to be freed. 7655 * 7656 * This routine is the lock free version of the API invoked to release a 7657 * completion-queue event back into the free pool. 7658 **/ 7659 void 7660 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7661 struct lpfc_cq_event *cq_event) 7662 { 7663 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 7664 } 7665 7666 /** 7667 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7668 * @phba: pointer to lpfc hba data structure. 7669 * @cq_event: pointer to the completion queue event to be freed. 7670 * 7671 * This routine is the lock version of the API invoked to release a 7672 * completion-queue event back into the free pool. 7673 **/ 7674 void 7675 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7676 struct lpfc_cq_event *cq_event) 7677 { 7678 unsigned long iflags; 7679 spin_lock_irqsave(&phba->hbalock, iflags); 7680 __lpfc_sli4_cq_event_release(phba, cq_event); 7681 spin_unlock_irqrestore(&phba->hbalock, iflags); 7682 } 7683 7684 /** 7685 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 7686 * @phba: pointer to lpfc hba data structure. 7687 * 7688 * This routine is to free all the pending completion-queue events to the 7689 * back into the free pool for device reset. 7690 **/ 7691 static void 7692 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 7693 { 7694 LIST_HEAD(cqelist); 7695 struct lpfc_cq_event *cqe; 7696 unsigned long iflags; 7697 7698 /* Retrieve all the pending WCQEs from pending WCQE lists */ 7699 spin_lock_irqsave(&phba->hbalock, iflags); 7700 /* Pending FCP XRI abort events */ 7701 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 7702 &cqelist); 7703 /* Pending ELS XRI abort events */ 7704 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 7705 &cqelist); 7706 /* Pending asynnc events */ 7707 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 7708 &cqelist); 7709 spin_unlock_irqrestore(&phba->hbalock, iflags); 7710 7711 while (!list_empty(&cqelist)) { 7712 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 7713 lpfc_sli4_cq_event_release(phba, cqe); 7714 } 7715 } 7716 7717 /** 7718 * lpfc_pci_function_reset - Reset pci function. 7719 * @phba: pointer to lpfc hba data structure. 7720 * 7721 * This routine is invoked to request a PCI function reset. It will destroys 7722 * all resources assigned to the PCI function which originates this request. 7723 * 7724 * Return codes 7725 * 0 - successful 7726 * -ENOMEM - No available memory 7727 * -EIO - The mailbox failed to complete successfully. 7728 **/ 7729 int 7730 lpfc_pci_function_reset(struct lpfc_hba *phba) 7731 { 7732 LPFC_MBOXQ_t *mboxq; 7733 uint32_t rc = 0, if_type; 7734 uint32_t shdr_status, shdr_add_status; 7735 uint32_t rdy_chk, num_resets = 0, reset_again = 0; 7736 union lpfc_sli4_cfg_shdr *shdr; 7737 struct lpfc_register reg_data; 7738 uint16_t devid; 7739 7740 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7741 switch (if_type) { 7742 case LPFC_SLI_INTF_IF_TYPE_0: 7743 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7744 GFP_KERNEL); 7745 if (!mboxq) { 7746 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7747 "0494 Unable to allocate memory for " 7748 "issuing SLI_FUNCTION_RESET mailbox " 7749 "command\n"); 7750 return -ENOMEM; 7751 } 7752 7753 /* Setup PCI function reset mailbox-ioctl command */ 7754 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7755 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 7756 LPFC_SLI4_MBX_EMBED); 7757 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7758 shdr = (union lpfc_sli4_cfg_shdr *) 7759 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7760 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7761 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7762 &shdr->response); 7763 if (rc != MBX_TIMEOUT) 7764 mempool_free(mboxq, phba->mbox_mem_pool); 7765 if (shdr_status || shdr_add_status || rc) { 7766 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7767 "0495 SLI_FUNCTION_RESET mailbox " 7768 "failed with status x%x add_status x%x," 7769 " mbx status x%x\n", 7770 shdr_status, shdr_add_status, rc); 7771 rc = -ENXIO; 7772 } 7773 break; 7774 case LPFC_SLI_INTF_IF_TYPE_2: 7775 for (num_resets = 0; 7776 num_resets < MAX_IF_TYPE_2_RESETS; 7777 num_resets++) { 7778 reg_data.word0 = 0; 7779 bf_set(lpfc_sliport_ctrl_end, ®_data, 7780 LPFC_SLIPORT_LITTLE_ENDIAN); 7781 bf_set(lpfc_sliport_ctrl_ip, ®_data, 7782 LPFC_SLIPORT_INIT_PORT); 7783 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 7784 CTRLregaddr); 7785 /* flush */ 7786 pci_read_config_word(phba->pcidev, 7787 PCI_DEVICE_ID, &devid); 7788 /* 7789 * Poll the Port Status Register and wait for RDY for 7790 * up to 10 seconds. If the port doesn't respond, treat 7791 * it as an error. If the port responds with RN, start 7792 * the loop again. 7793 */ 7794 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { 7795 msleep(10); 7796 if (lpfc_readl(phba->sli4_hba.u.if_type2. 7797 STATUSregaddr, ®_data.word0)) { 7798 rc = -ENODEV; 7799 goto out; 7800 } 7801 if (bf_get(lpfc_sliport_status_rn, ®_data)) 7802 reset_again++; 7803 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 7804 break; 7805 } 7806 7807 /* 7808 * If the port responds to the init request with 7809 * reset needed, delay for a bit and restart the loop. 7810 */ 7811 if (reset_again && (rdy_chk < 1000)) { 7812 msleep(10); 7813 reset_again = 0; 7814 continue; 7815 } 7816 7817 /* Detect any port errors. */ 7818 if ((bf_get(lpfc_sliport_status_err, ®_data)) || 7819 (rdy_chk >= 1000)) { 7820 phba->work_status[0] = readl( 7821 phba->sli4_hba.u.if_type2.ERR1regaddr); 7822 phba->work_status[1] = readl( 7823 phba->sli4_hba.u.if_type2.ERR2regaddr); 7824 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7825 "2890 Port error detected during port " 7826 "reset(%d): wait_tmo:%d ms, " 7827 "port status reg 0x%x, " 7828 "error 1=0x%x, error 2=0x%x\n", 7829 num_resets, rdy_chk*10, 7830 reg_data.word0, 7831 phba->work_status[0], 7832 phba->work_status[1]); 7833 rc = -ENODEV; 7834 } 7835 7836 /* 7837 * Terminate the outer loop provided the Port indicated 7838 * ready within 10 seconds. 7839 */ 7840 if (rdy_chk < 1000) 7841 break; 7842 } 7843 /* delay driver action following IF_TYPE_2 function reset */ 7844 msleep(100); 7845 break; 7846 case LPFC_SLI_INTF_IF_TYPE_1: 7847 default: 7848 break; 7849 } 7850 7851 out: 7852 /* Catch the not-ready port failure after a port reset. */ 7853 if (num_resets >= MAX_IF_TYPE_2_RESETS) { 7854 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7855 "3317 HBA not functional: IP Reset Failed " 7856 "after (%d) retries, try: " 7857 "echo fw_reset > board_mode\n", num_resets); 7858 rc = -ENODEV; 7859 } 7860 7861 return rc; 7862 } 7863 7864 /** 7865 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 7866 * @phba: pointer to lpfc hba data structure. 7867 * 7868 * This routine is invoked to set up the PCI device memory space for device 7869 * with SLI-4 interface spec. 7870 * 7871 * Return codes 7872 * 0 - successful 7873 * other values - error 7874 **/ 7875 static int 7876 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 7877 { 7878 struct pci_dev *pdev; 7879 unsigned long bar0map_len, bar1map_len, bar2map_len; 7880 int error = -ENODEV; 7881 uint32_t if_type; 7882 7883 /* Obtain PCI device reference */ 7884 if (!phba->pcidev) 7885 return error; 7886 else 7887 pdev = phba->pcidev; 7888 7889 /* Set the device DMA mask size */ 7890 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7891 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7892 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7893 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7894 return error; 7895 } 7896 } 7897 7898 /* 7899 * The BARs and register set definitions and offset locations are 7900 * dependent on the if_type. 7901 */ 7902 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 7903 &phba->sli4_hba.sli_intf.word0)) { 7904 return error; 7905 } 7906 7907 /* There is no SLI3 failback for SLI4 devices. */ 7908 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 7909 LPFC_SLI_INTF_VALID) { 7910 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7911 "2894 SLI_INTF reg contents invalid " 7912 "sli_intf reg 0x%x\n", 7913 phba->sli4_hba.sli_intf.word0); 7914 return error; 7915 } 7916 7917 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7918 /* 7919 * Get the bus address of SLI4 device Bar regions and the 7920 * number of bytes required by each mapping. The mapping of the 7921 * particular PCI BARs regions is dependent on the type of 7922 * SLI4 device. 7923 */ 7924 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) { 7925 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0); 7926 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0); 7927 7928 /* 7929 * Map SLI4 PCI Config Space Register base to a kernel virtual 7930 * addr 7931 */ 7932 phba->sli4_hba.conf_regs_memmap_p = 7933 ioremap(phba->pci_bar0_map, bar0map_len); 7934 if (!phba->sli4_hba.conf_regs_memmap_p) { 7935 dev_printk(KERN_ERR, &pdev->dev, 7936 "ioremap failed for SLI4 PCI config " 7937 "registers.\n"); 7938 goto out; 7939 } 7940 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p; 7941 /* Set up BAR0 PCI config space register memory map */ 7942 lpfc_sli4_bar0_register_memmap(phba, if_type); 7943 } else { 7944 phba->pci_bar0_map = pci_resource_start(pdev, 1); 7945 bar0map_len = pci_resource_len(pdev, 1); 7946 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7947 dev_printk(KERN_ERR, &pdev->dev, 7948 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 7949 goto out; 7950 } 7951 phba->sli4_hba.conf_regs_memmap_p = 7952 ioremap(phba->pci_bar0_map, bar0map_len); 7953 if (!phba->sli4_hba.conf_regs_memmap_p) { 7954 dev_printk(KERN_ERR, &pdev->dev, 7955 "ioremap failed for SLI4 PCI config " 7956 "registers.\n"); 7957 goto out; 7958 } 7959 lpfc_sli4_bar0_register_memmap(phba, if_type); 7960 } 7961 7962 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7963 (pci_resource_start(pdev, PCI_64BIT_BAR2))) { 7964 /* 7965 * Map SLI4 if type 0 HBA Control Register base to a kernel 7966 * virtual address and setup the registers. 7967 */ 7968 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2); 7969 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); 7970 phba->sli4_hba.ctrl_regs_memmap_p = 7971 ioremap(phba->pci_bar1_map, bar1map_len); 7972 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 7973 dev_printk(KERN_ERR, &pdev->dev, 7974 "ioremap failed for SLI4 HBA control registers.\n"); 7975 goto out_iounmap_conf; 7976 } 7977 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p; 7978 lpfc_sli4_bar1_register_memmap(phba); 7979 } 7980 7981 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7982 (pci_resource_start(pdev, PCI_64BIT_BAR4))) { 7983 /* 7984 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 7985 * virtual address and setup the registers. 7986 */ 7987 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4); 7988 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); 7989 phba->sli4_hba.drbl_regs_memmap_p = 7990 ioremap(phba->pci_bar2_map, bar2map_len); 7991 if (!phba->sli4_hba.drbl_regs_memmap_p) { 7992 dev_printk(KERN_ERR, &pdev->dev, 7993 "ioremap failed for SLI4 HBA doorbell registers.\n"); 7994 goto out_iounmap_ctrl; 7995 } 7996 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p; 7997 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 7998 if (error) 7999 goto out_iounmap_all; 8000 } 8001 8002 return 0; 8003 8004 out_iounmap_all: 8005 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 8006 out_iounmap_ctrl: 8007 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 8008 out_iounmap_conf: 8009 iounmap(phba->sli4_hba.conf_regs_memmap_p); 8010 out: 8011 return error; 8012 } 8013 8014 /** 8015 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 8016 * @phba: pointer to lpfc hba data structure. 8017 * 8018 * This routine is invoked to unset the PCI device memory space for device 8019 * with SLI-4 interface spec. 8020 **/ 8021 static void 8022 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 8023 { 8024 uint32_t if_type; 8025 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 8026 8027 switch (if_type) { 8028 case LPFC_SLI_INTF_IF_TYPE_0: 8029 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 8030 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 8031 iounmap(phba->sli4_hba.conf_regs_memmap_p); 8032 break; 8033 case LPFC_SLI_INTF_IF_TYPE_2: 8034 iounmap(phba->sli4_hba.conf_regs_memmap_p); 8035 break; 8036 case LPFC_SLI_INTF_IF_TYPE_1: 8037 default: 8038 dev_printk(KERN_ERR, &phba->pcidev->dev, 8039 "FATAL - unsupported SLI4 interface type - %d\n", 8040 if_type); 8041 break; 8042 } 8043 } 8044 8045 /** 8046 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 8047 * @phba: pointer to lpfc hba data structure. 8048 * 8049 * This routine is invoked to enable the MSI-X interrupt vectors to device 8050 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 8051 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 8052 * invoked, enables either all or nothing, depending on the current 8053 * availability of PCI vector resources. The device driver is responsible 8054 * for calling the individual request_irq() to register each MSI-X vector 8055 * with a interrupt handler, which is done in this function. Note that 8056 * later when device is unloading, the driver should always call free_irq() 8057 * on all MSI-X vectors it has done request_irq() on before calling 8058 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 8059 * will be left with MSI-X enabled and leaks its vectors. 8060 * 8061 * Return codes 8062 * 0 - successful 8063 * other values - error 8064 **/ 8065 static int 8066 lpfc_sli_enable_msix(struct lpfc_hba *phba) 8067 { 8068 int rc, i; 8069 LPFC_MBOXQ_t *pmb; 8070 8071 /* Set up MSI-X multi-message vectors */ 8072 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 8073 phba->msix_entries[i].entry = i; 8074 8075 /* Configure MSI-X capability structure */ 8076 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 8077 ARRAY_SIZE(phba->msix_entries)); 8078 if (rc) { 8079 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8080 "0420 PCI enable MSI-X failed (%d)\n", rc); 8081 goto msi_fail_out; 8082 } 8083 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 8084 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8085 "0477 MSI-X entry[%d]: vector=x%x " 8086 "message=%d\n", i, 8087 phba->msix_entries[i].vector, 8088 phba->msix_entries[i].entry); 8089 /* 8090 * Assign MSI-X vectors to interrupt handlers 8091 */ 8092 8093 /* vector-0 is associated to slow-path handler */ 8094 rc = request_irq(phba->msix_entries[0].vector, 8095 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 8096 LPFC_SP_DRIVER_HANDLER_NAME, phba); 8097 if (rc) { 8098 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8099 "0421 MSI-X slow-path request_irq failed " 8100 "(%d)\n", rc); 8101 goto msi_fail_out; 8102 } 8103 8104 /* vector-1 is associated to fast-path handler */ 8105 rc = request_irq(phba->msix_entries[1].vector, 8106 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 8107 LPFC_FP_DRIVER_HANDLER_NAME, phba); 8108 8109 if (rc) { 8110 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8111 "0429 MSI-X fast-path request_irq failed " 8112 "(%d)\n", rc); 8113 goto irq_fail_out; 8114 } 8115 8116 /* 8117 * Configure HBA MSI-X attention conditions to messages 8118 */ 8119 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 8120 8121 if (!pmb) { 8122 rc = -ENOMEM; 8123 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8124 "0474 Unable to allocate memory for issuing " 8125 "MBOX_CONFIG_MSI command\n"); 8126 goto mem_fail_out; 8127 } 8128 rc = lpfc_config_msi(phba, pmb); 8129 if (rc) 8130 goto mbx_fail_out; 8131 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 8132 if (rc != MBX_SUCCESS) { 8133 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 8134 "0351 Config MSI mailbox command failed, " 8135 "mbxCmd x%x, mbxStatus x%x\n", 8136 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 8137 goto mbx_fail_out; 8138 } 8139 8140 /* Free memory allocated for mailbox command */ 8141 mempool_free(pmb, phba->mbox_mem_pool); 8142 return rc; 8143 8144 mbx_fail_out: 8145 /* Free memory allocated for mailbox command */ 8146 mempool_free(pmb, phba->mbox_mem_pool); 8147 8148 mem_fail_out: 8149 /* free the irq already requested */ 8150 free_irq(phba->msix_entries[1].vector, phba); 8151 8152 irq_fail_out: 8153 /* free the irq already requested */ 8154 free_irq(phba->msix_entries[0].vector, phba); 8155 8156 msi_fail_out: 8157 /* Unconfigure MSI-X capability structure */ 8158 pci_disable_msix(phba->pcidev); 8159 return rc; 8160 } 8161 8162 /** 8163 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 8164 * @phba: pointer to lpfc hba data structure. 8165 * 8166 * This routine is invoked to release the MSI-X vectors and then disable the 8167 * MSI-X interrupt mode to device with SLI-3 interface spec. 8168 **/ 8169 static void 8170 lpfc_sli_disable_msix(struct lpfc_hba *phba) 8171 { 8172 int i; 8173 8174 /* Free up MSI-X multi-message vectors */ 8175 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 8176 free_irq(phba->msix_entries[i].vector, phba); 8177 /* Disable MSI-X */ 8178 pci_disable_msix(phba->pcidev); 8179 8180 return; 8181 } 8182 8183 /** 8184 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 8185 * @phba: pointer to lpfc hba data structure. 8186 * 8187 * This routine is invoked to enable the MSI interrupt mode to device with 8188 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 8189 * enable the MSI vector. The device driver is responsible for calling the 8190 * request_irq() to register MSI vector with a interrupt the handler, which 8191 * is done in this function. 8192 * 8193 * Return codes 8194 * 0 - successful 8195 * other values - error 8196 */ 8197 static int 8198 lpfc_sli_enable_msi(struct lpfc_hba *phba) 8199 { 8200 int rc; 8201 8202 rc = pci_enable_msi(phba->pcidev); 8203 if (!rc) 8204 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8205 "0462 PCI enable MSI mode success.\n"); 8206 else { 8207 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8208 "0471 PCI enable MSI mode failed (%d)\n", rc); 8209 return rc; 8210 } 8211 8212 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 8213 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8214 if (rc) { 8215 pci_disable_msi(phba->pcidev); 8216 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8217 "0478 MSI request_irq failed (%d)\n", rc); 8218 } 8219 return rc; 8220 } 8221 8222 /** 8223 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 8224 * @phba: pointer to lpfc hba data structure. 8225 * 8226 * This routine is invoked to disable the MSI interrupt mode to device with 8227 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 8228 * done request_irq() on before calling pci_disable_msi(). Failure to do so 8229 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 8230 * its vector. 8231 */ 8232 static void 8233 lpfc_sli_disable_msi(struct lpfc_hba *phba) 8234 { 8235 free_irq(phba->pcidev->irq, phba); 8236 pci_disable_msi(phba->pcidev); 8237 return; 8238 } 8239 8240 /** 8241 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 8242 * @phba: pointer to lpfc hba data structure. 8243 * 8244 * This routine is invoked to enable device interrupt and associate driver's 8245 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 8246 * spec. Depends on the interrupt mode configured to the driver, the driver 8247 * will try to fallback from the configured interrupt mode to an interrupt 8248 * mode which is supported by the platform, kernel, and device in the order 8249 * of: 8250 * MSI-X -> MSI -> IRQ. 8251 * 8252 * Return codes 8253 * 0 - successful 8254 * other values - error 8255 **/ 8256 static uint32_t 8257 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 8258 { 8259 uint32_t intr_mode = LPFC_INTR_ERROR; 8260 int retval; 8261 8262 if (cfg_mode == 2) { 8263 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 8264 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 8265 if (!retval) { 8266 /* Now, try to enable MSI-X interrupt mode */ 8267 retval = lpfc_sli_enable_msix(phba); 8268 if (!retval) { 8269 /* Indicate initialization to MSI-X mode */ 8270 phba->intr_type = MSIX; 8271 intr_mode = 2; 8272 } 8273 } 8274 } 8275 8276 /* Fallback to MSI if MSI-X initialization failed */ 8277 if (cfg_mode >= 1 && phba->intr_type == NONE) { 8278 retval = lpfc_sli_enable_msi(phba); 8279 if (!retval) { 8280 /* Indicate initialization to MSI mode */ 8281 phba->intr_type = MSI; 8282 intr_mode = 1; 8283 } 8284 } 8285 8286 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 8287 if (phba->intr_type == NONE) { 8288 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 8289 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8290 if (!retval) { 8291 /* Indicate initialization to INTx mode */ 8292 phba->intr_type = INTx; 8293 intr_mode = 0; 8294 } 8295 } 8296 return intr_mode; 8297 } 8298 8299 /** 8300 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 8301 * @phba: pointer to lpfc hba data structure. 8302 * 8303 * This routine is invoked to disable device interrupt and disassociate the 8304 * driver's interrupt handler(s) from interrupt vector(s) to device with 8305 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 8306 * release the interrupt vector(s) for the message signaled interrupt. 8307 **/ 8308 static void 8309 lpfc_sli_disable_intr(struct lpfc_hba *phba) 8310 { 8311 /* Disable the currently initialized interrupt mode */ 8312 if (phba->intr_type == MSIX) 8313 lpfc_sli_disable_msix(phba); 8314 else if (phba->intr_type == MSI) 8315 lpfc_sli_disable_msi(phba); 8316 else if (phba->intr_type == INTx) 8317 free_irq(phba->pcidev->irq, phba); 8318 8319 /* Reset interrupt management states */ 8320 phba->intr_type = NONE; 8321 phba->sli.slistat.sli_intr = 0; 8322 8323 return; 8324 } 8325 8326 /** 8327 * lpfc_find_next_cpu - Find next available CPU that matches the phys_id 8328 * @phba: pointer to lpfc hba data structure. 8329 * 8330 * Find next available CPU to use for IRQ to CPU affinity. 8331 */ 8332 static int 8333 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id) 8334 { 8335 struct lpfc_vector_map_info *cpup; 8336 int cpu; 8337 8338 cpup = phba->sli4_hba.cpu_map; 8339 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8340 /* CPU must be online */ 8341 if (cpu_online(cpu)) { 8342 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) && 8343 (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) && 8344 (cpup->phys_id == phys_id)) { 8345 return cpu; 8346 } 8347 } 8348 cpup++; 8349 } 8350 8351 /* 8352 * If we get here, we have used ALL CPUs for the specific 8353 * phys_id. Now we need to clear out lpfc_used_cpu and start 8354 * reusing CPUs. 8355 */ 8356 8357 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8358 if (lpfc_used_cpu[cpu] == phys_id) 8359 lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY; 8360 } 8361 8362 cpup = phba->sli4_hba.cpu_map; 8363 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8364 /* CPU must be online */ 8365 if (cpu_online(cpu)) { 8366 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) && 8367 (cpup->phys_id == phys_id)) { 8368 return cpu; 8369 } 8370 } 8371 cpup++; 8372 } 8373 return LPFC_VECTOR_MAP_EMPTY; 8374 } 8375 8376 /** 8377 * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors 8378 * @phba: pointer to lpfc hba data structure. 8379 * @vectors: number of HBA vectors 8380 * 8381 * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector 8382 * affinization across multple physical CPUs (numa nodes). 8383 * In addition, this routine will assign an IO channel for each CPU 8384 * to use when issuing I/Os. 8385 */ 8386 static int 8387 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors) 8388 { 8389 int i, idx, saved_chann, used_chann, cpu, phys_id; 8390 int max_phys_id, min_phys_id; 8391 int num_io_channel, first_cpu, chan; 8392 struct lpfc_vector_map_info *cpup; 8393 #ifdef CONFIG_X86 8394 struct cpuinfo_x86 *cpuinfo; 8395 #endif 8396 struct cpumask *mask; 8397 uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1]; 8398 8399 /* If there is no mapping, just return */ 8400 if (!phba->cfg_fcp_cpu_map) 8401 return 1; 8402 8403 /* Init cpu_map array */ 8404 memset(phba->sli4_hba.cpu_map, 0xff, 8405 (sizeof(struct lpfc_vector_map_info) * 8406 phba->sli4_hba.num_present_cpu)); 8407 8408 max_phys_id = 0; 8409 min_phys_id = 0xff; 8410 phys_id = 0; 8411 num_io_channel = 0; 8412 first_cpu = LPFC_VECTOR_MAP_EMPTY; 8413 8414 /* Update CPU map with physical id and core id of each CPU */ 8415 cpup = phba->sli4_hba.cpu_map; 8416 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8417 #ifdef CONFIG_X86 8418 cpuinfo = &cpu_data(cpu); 8419 cpup->phys_id = cpuinfo->phys_proc_id; 8420 cpup->core_id = cpuinfo->cpu_core_id; 8421 #else 8422 /* No distinction between CPUs for other platforms */ 8423 cpup->phys_id = 0; 8424 cpup->core_id = 0; 8425 #endif 8426 8427 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8428 "3328 CPU physid %d coreid %d\n", 8429 cpup->phys_id, cpup->core_id); 8430 8431 if (cpup->phys_id > max_phys_id) 8432 max_phys_id = cpup->phys_id; 8433 if (cpup->phys_id < min_phys_id) 8434 min_phys_id = cpup->phys_id; 8435 cpup++; 8436 } 8437 8438 phys_id = min_phys_id; 8439 /* Now associate the HBA vectors with specific CPUs */ 8440 for (idx = 0; idx < vectors; idx++) { 8441 cpup = phba->sli4_hba.cpu_map; 8442 cpu = lpfc_find_next_cpu(phba, phys_id); 8443 if (cpu == LPFC_VECTOR_MAP_EMPTY) { 8444 8445 /* Try for all phys_id's */ 8446 for (i = 1; i < max_phys_id; i++) { 8447 phys_id++; 8448 if (phys_id > max_phys_id) 8449 phys_id = min_phys_id; 8450 cpu = lpfc_find_next_cpu(phba, phys_id); 8451 if (cpu == LPFC_VECTOR_MAP_EMPTY) 8452 continue; 8453 goto found; 8454 } 8455 8456 /* Use round robin for scheduling */ 8457 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN; 8458 chan = 0; 8459 cpup = phba->sli4_hba.cpu_map; 8460 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 8461 cpup->channel_id = chan; 8462 cpup++; 8463 chan++; 8464 if (chan >= phba->cfg_fcp_io_channel) 8465 chan = 0; 8466 } 8467 8468 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8469 "3329 Cannot set affinity:" 8470 "Error mapping vector %d (%d)\n", 8471 idx, vectors); 8472 return 0; 8473 } 8474 found: 8475 cpup += cpu; 8476 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP) 8477 lpfc_used_cpu[cpu] = phys_id; 8478 8479 /* Associate vector with selected CPU */ 8480 cpup->irq = phba->sli4_hba.msix_entries[idx].vector; 8481 8482 /* Associate IO channel with selected CPU */ 8483 cpup->channel_id = idx; 8484 num_io_channel++; 8485 8486 if (first_cpu == LPFC_VECTOR_MAP_EMPTY) 8487 first_cpu = cpu; 8488 8489 /* Now affinitize to the selected CPU */ 8490 mask = &cpup->maskbits; 8491 cpumask_clear(mask); 8492 cpumask_set_cpu(cpu, mask); 8493 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx]. 8494 vector, mask); 8495 8496 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8497 "3330 Set Affinity: CPU %d channel %d " 8498 "irq %d (%x)\n", 8499 cpu, cpup->channel_id, 8500 phba->sli4_hba.msix_entries[idx].vector, i); 8501 8502 /* Spread vector mapping across multple physical CPU nodes */ 8503 phys_id++; 8504 if (phys_id > max_phys_id) 8505 phys_id = min_phys_id; 8506 } 8507 8508 /* 8509 * Finally fill in the IO channel for any remaining CPUs. 8510 * At this point, all IO channels have been assigned to a specific 8511 * MSIx vector, mapped to a specific CPU. 8512 * Base the remaining IO channel assigned, to IO channels already 8513 * assigned to other CPUs on the same phys_id. 8514 */ 8515 for (i = min_phys_id; i <= max_phys_id; i++) { 8516 /* 8517 * If there are no io channels already mapped to 8518 * this phys_id, just round robin thru the io_channels. 8519 * Setup chann[] for round robin. 8520 */ 8521 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 8522 chann[idx] = idx; 8523 8524 saved_chann = 0; 8525 used_chann = 0; 8526 8527 /* 8528 * First build a list of IO channels already assigned 8529 * to this phys_id before reassigning the same IO 8530 * channels to the remaining CPUs. 8531 */ 8532 cpup = phba->sli4_hba.cpu_map; 8533 cpu = first_cpu; 8534 cpup += cpu; 8535 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; 8536 idx++) { 8537 if (cpup->phys_id == i) { 8538 /* 8539 * Save any IO channels that are 8540 * already mapped to this phys_id. 8541 */ 8542 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) { 8543 chann[saved_chann] = 8544 cpup->channel_id; 8545 saved_chann++; 8546 goto out; 8547 } 8548 8549 /* See if we are using round-robin */ 8550 if (saved_chann == 0) 8551 saved_chann = 8552 phba->cfg_fcp_io_channel; 8553 8554 /* Associate next IO channel with CPU */ 8555 cpup->channel_id = chann[used_chann]; 8556 num_io_channel++; 8557 used_chann++; 8558 if (used_chann == saved_chann) 8559 used_chann = 0; 8560 8561 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8562 "3331 Set IO_CHANN " 8563 "CPU %d channel %d\n", 8564 idx, cpup->channel_id); 8565 } 8566 out: 8567 cpu++; 8568 if (cpu >= phba->sli4_hba.num_present_cpu) { 8569 cpup = phba->sli4_hba.cpu_map; 8570 cpu = 0; 8571 } else { 8572 cpup++; 8573 } 8574 } 8575 } 8576 8577 if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) { 8578 cpup = phba->sli4_hba.cpu_map; 8579 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) { 8580 if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) { 8581 cpup->channel_id = 0; 8582 num_io_channel++; 8583 8584 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8585 "3332 Assign IO_CHANN " 8586 "CPU %d channel %d\n", 8587 idx, cpup->channel_id); 8588 } 8589 cpup++; 8590 } 8591 } 8592 8593 /* Sanity check */ 8594 if (num_io_channel != phba->sli4_hba.num_present_cpu) 8595 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8596 "3333 Set affinity mismatch:" 8597 "%d chann != %d cpus: %d vectors\n", 8598 num_io_channel, phba->sli4_hba.num_present_cpu, 8599 vectors); 8600 8601 /* Enable using cpu affinity for scheduling */ 8602 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU; 8603 return 1; 8604 } 8605 8606 8607 /** 8608 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 8609 * @phba: pointer to lpfc hba data structure. 8610 * 8611 * This routine is invoked to enable the MSI-X interrupt vectors to device 8612 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 8613 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 8614 * enables either all or nothing, depending on the current availability of 8615 * PCI vector resources. The device driver is responsible for calling the 8616 * individual request_irq() to register each MSI-X vector with a interrupt 8617 * handler, which is done in this function. Note that later when device is 8618 * unloading, the driver should always call free_irq() on all MSI-X vectors 8619 * it has done request_irq() on before calling pci_disable_msix(). Failure 8620 * to do so results in a BUG_ON() and a device will be left with MSI-X 8621 * enabled and leaks its vectors. 8622 * 8623 * Return codes 8624 * 0 - successful 8625 * other values - error 8626 **/ 8627 static int 8628 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 8629 { 8630 int vectors, rc, index; 8631 8632 /* Set up MSI-X multi-message vectors */ 8633 for (index = 0; index < phba->cfg_fcp_io_channel; index++) 8634 phba->sli4_hba.msix_entries[index].entry = index; 8635 8636 /* Configure MSI-X capability structure */ 8637 vectors = phba->cfg_fcp_io_channel; 8638 enable_msix_vectors: 8639 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 8640 vectors); 8641 if (rc > 1) { 8642 vectors = rc; 8643 goto enable_msix_vectors; 8644 } else if (rc) { 8645 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8646 "0484 PCI enable MSI-X failed (%d)\n", rc); 8647 goto msi_fail_out; 8648 } 8649 8650 /* Log MSI-X vector assignment */ 8651 for (index = 0; index < vectors; index++) 8652 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8653 "0489 MSI-X entry[%d]: vector=x%x " 8654 "message=%d\n", index, 8655 phba->sli4_hba.msix_entries[index].vector, 8656 phba->sli4_hba.msix_entries[index].entry); 8657 8658 /* Assign MSI-X vectors to interrupt handlers */ 8659 for (index = 0; index < vectors; index++) { 8660 memset(&phba->sli4_hba.handler_name[index], 0, 16); 8661 sprintf((char *)&phba->sli4_hba.handler_name[index], 8662 LPFC_DRIVER_HANDLER_NAME"%d", index); 8663 8664 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8665 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8666 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1); 8667 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 8668 &lpfc_sli4_hba_intr_handler, IRQF_SHARED, 8669 (char *)&phba->sli4_hba.handler_name[index], 8670 &phba->sli4_hba.fcp_eq_hdl[index]); 8671 if (rc) { 8672 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8673 "0486 MSI-X fast-path (%d) " 8674 "request_irq failed (%d)\n", index, rc); 8675 goto cfg_fail_out; 8676 } 8677 } 8678 8679 if (vectors != phba->cfg_fcp_io_channel) { 8680 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8681 "3238 Reducing IO channels to match number of " 8682 "MSI-X vectors, requested %d got %d\n", 8683 phba->cfg_fcp_io_channel, vectors); 8684 phba->cfg_fcp_io_channel = vectors; 8685 } 8686 8687 lpfc_sli4_set_affinity(phba, vectors); 8688 return rc; 8689 8690 cfg_fail_out: 8691 /* free the irq already requested */ 8692 for (--index; index >= 0; index--) { 8693 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index]. 8694 vector, NULL); 8695 free_irq(phba->sli4_hba.msix_entries[index].vector, 8696 &phba->sli4_hba.fcp_eq_hdl[index]); 8697 } 8698 8699 msi_fail_out: 8700 /* Unconfigure MSI-X capability structure */ 8701 pci_disable_msix(phba->pcidev); 8702 return rc; 8703 } 8704 8705 /** 8706 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 8707 * @phba: pointer to lpfc hba data structure. 8708 * 8709 * This routine is invoked to release the MSI-X vectors and then disable the 8710 * MSI-X interrupt mode to device with SLI-4 interface spec. 8711 **/ 8712 static void 8713 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 8714 { 8715 int index; 8716 8717 /* Free up MSI-X multi-message vectors */ 8718 for (index = 0; index < phba->cfg_fcp_io_channel; index++) { 8719 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index]. 8720 vector, NULL); 8721 free_irq(phba->sli4_hba.msix_entries[index].vector, 8722 &phba->sli4_hba.fcp_eq_hdl[index]); 8723 } 8724 8725 /* Disable MSI-X */ 8726 pci_disable_msix(phba->pcidev); 8727 8728 return; 8729 } 8730 8731 /** 8732 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 8733 * @phba: pointer to lpfc hba data structure. 8734 * 8735 * This routine is invoked to enable the MSI interrupt mode to device with 8736 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 8737 * to enable the MSI vector. The device driver is responsible for calling 8738 * the request_irq() to register MSI vector with a interrupt the handler, 8739 * which is done in this function. 8740 * 8741 * Return codes 8742 * 0 - successful 8743 * other values - error 8744 **/ 8745 static int 8746 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 8747 { 8748 int rc, index; 8749 8750 rc = pci_enable_msi(phba->pcidev); 8751 if (!rc) 8752 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8753 "0487 PCI enable MSI mode success.\n"); 8754 else { 8755 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8756 "0488 PCI enable MSI mode failed (%d)\n", rc); 8757 return rc; 8758 } 8759 8760 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8761 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8762 if (rc) { 8763 pci_disable_msi(phba->pcidev); 8764 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8765 "0490 MSI request_irq failed (%d)\n", rc); 8766 return rc; 8767 } 8768 8769 for (index = 0; index < phba->cfg_fcp_io_channel; index++) { 8770 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8771 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8772 } 8773 8774 return 0; 8775 } 8776 8777 /** 8778 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 8779 * @phba: pointer to lpfc hba data structure. 8780 * 8781 * This routine is invoked to disable the MSI interrupt mode to device with 8782 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 8783 * done request_irq() on before calling pci_disable_msi(). Failure to do so 8784 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 8785 * its vector. 8786 **/ 8787 static void 8788 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 8789 { 8790 free_irq(phba->pcidev->irq, phba); 8791 pci_disable_msi(phba->pcidev); 8792 return; 8793 } 8794 8795 /** 8796 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 8797 * @phba: pointer to lpfc hba data structure. 8798 * 8799 * This routine is invoked to enable device interrupt and associate driver's 8800 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 8801 * interface spec. Depends on the interrupt mode configured to the driver, 8802 * the driver will try to fallback from the configured interrupt mode to an 8803 * interrupt mode which is supported by the platform, kernel, and device in 8804 * the order of: 8805 * MSI-X -> MSI -> IRQ. 8806 * 8807 * Return codes 8808 * 0 - successful 8809 * other values - error 8810 **/ 8811 static uint32_t 8812 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 8813 { 8814 uint32_t intr_mode = LPFC_INTR_ERROR; 8815 int retval, index; 8816 8817 if (cfg_mode == 2) { 8818 /* Preparation before conf_msi mbox cmd */ 8819 retval = 0; 8820 if (!retval) { 8821 /* Now, try to enable MSI-X interrupt mode */ 8822 retval = lpfc_sli4_enable_msix(phba); 8823 if (!retval) { 8824 /* Indicate initialization to MSI-X mode */ 8825 phba->intr_type = MSIX; 8826 intr_mode = 2; 8827 } 8828 } 8829 } 8830 8831 /* Fallback to MSI if MSI-X initialization failed */ 8832 if (cfg_mode >= 1 && phba->intr_type == NONE) { 8833 retval = lpfc_sli4_enable_msi(phba); 8834 if (!retval) { 8835 /* Indicate initialization to MSI mode */ 8836 phba->intr_type = MSI; 8837 intr_mode = 1; 8838 } 8839 } 8840 8841 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 8842 if (phba->intr_type == NONE) { 8843 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8844 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8845 if (!retval) { 8846 /* Indicate initialization to INTx mode */ 8847 phba->intr_type = INTx; 8848 intr_mode = 0; 8849 for (index = 0; index < phba->cfg_fcp_io_channel; 8850 index++) { 8851 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8852 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8853 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index]. 8854 fcp_eq_in_use, 1); 8855 } 8856 } 8857 } 8858 return intr_mode; 8859 } 8860 8861 /** 8862 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 8863 * @phba: pointer to lpfc hba data structure. 8864 * 8865 * This routine is invoked to disable device interrupt and disassociate 8866 * the driver's interrupt handler(s) from interrupt vector(s) to device 8867 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 8868 * will release the interrupt vector(s) for the message signaled interrupt. 8869 **/ 8870 static void 8871 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 8872 { 8873 /* Disable the currently initialized interrupt mode */ 8874 if (phba->intr_type == MSIX) 8875 lpfc_sli4_disable_msix(phba); 8876 else if (phba->intr_type == MSI) 8877 lpfc_sli4_disable_msi(phba); 8878 else if (phba->intr_type == INTx) 8879 free_irq(phba->pcidev->irq, phba); 8880 8881 /* Reset interrupt management states */ 8882 phba->intr_type = NONE; 8883 phba->sli.slistat.sli_intr = 0; 8884 8885 return; 8886 } 8887 8888 /** 8889 * lpfc_unset_hba - Unset SLI3 hba device initialization 8890 * @phba: pointer to lpfc hba data structure. 8891 * 8892 * This routine is invoked to unset the HBA device initialization steps to 8893 * a device with SLI-3 interface spec. 8894 **/ 8895 static void 8896 lpfc_unset_hba(struct lpfc_hba *phba) 8897 { 8898 struct lpfc_vport *vport = phba->pport; 8899 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8900 8901 spin_lock_irq(shost->host_lock); 8902 vport->load_flag |= FC_UNLOADING; 8903 spin_unlock_irq(shost->host_lock); 8904 8905 kfree(phba->vpi_bmask); 8906 kfree(phba->vpi_ids); 8907 8908 lpfc_stop_hba_timers(phba); 8909 8910 phba->pport->work_port_events = 0; 8911 8912 lpfc_sli_hba_down(phba); 8913 8914 lpfc_sli_brdrestart(phba); 8915 8916 lpfc_sli_disable_intr(phba); 8917 8918 return; 8919 } 8920 8921 /** 8922 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 8923 * @phba: Pointer to HBA context object. 8924 * 8925 * This function is called in the SLI4 code path to wait for completion 8926 * of device's XRIs exchange busy. It will check the XRI exchange busy 8927 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 8928 * that, it will check the XRI exchange busy on outstanding FCP and ELS 8929 * I/Os every 30 seconds, log error message, and wait forever. Only when 8930 * all XRI exchange busy complete, the driver unload shall proceed with 8931 * invoking the function reset ioctl mailbox command to the CNA and the 8932 * the rest of the driver unload resource release. 8933 **/ 8934 static void 8935 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 8936 { 8937 int wait_time = 0; 8938 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8939 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8940 8941 while (!fcp_xri_cmpl || !els_xri_cmpl) { 8942 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 8943 if (!fcp_xri_cmpl) 8944 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8945 "2877 FCP XRI exchange busy " 8946 "wait time: %d seconds.\n", 8947 wait_time/1000); 8948 if (!els_xri_cmpl) 8949 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8950 "2878 ELS XRI exchange busy " 8951 "wait time: %d seconds.\n", 8952 wait_time/1000); 8953 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 8954 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 8955 } else { 8956 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 8957 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 8958 } 8959 fcp_xri_cmpl = 8960 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8961 els_xri_cmpl = 8962 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8963 } 8964 } 8965 8966 /** 8967 * lpfc_sli4_hba_unset - Unset the fcoe hba 8968 * @phba: Pointer to HBA context object. 8969 * 8970 * This function is called in the SLI4 code path to reset the HBA's FCoE 8971 * function. The caller is not required to hold any lock. This routine 8972 * issues PCI function reset mailbox command to reset the FCoE function. 8973 * At the end of the function, it calls lpfc_hba_down_post function to 8974 * free any pending commands. 8975 **/ 8976 static void 8977 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 8978 { 8979 int wait_cnt = 0; 8980 LPFC_MBOXQ_t *mboxq; 8981 struct pci_dev *pdev = phba->pcidev; 8982 8983 lpfc_stop_hba_timers(phba); 8984 phba->sli4_hba.intr_enable = 0; 8985 8986 /* 8987 * Gracefully wait out the potential current outstanding asynchronous 8988 * mailbox command. 8989 */ 8990 8991 /* First, block any pending async mailbox command from posted */ 8992 spin_lock_irq(&phba->hbalock); 8993 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 8994 spin_unlock_irq(&phba->hbalock); 8995 /* Now, trying to wait it out if we can */ 8996 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8997 msleep(10); 8998 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 8999 break; 9000 } 9001 /* Forcefully release the outstanding mailbox command if timed out */ 9002 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 9003 spin_lock_irq(&phba->hbalock); 9004 mboxq = phba->sli.mbox_active; 9005 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 9006 __lpfc_mbox_cmpl_put(phba, mboxq); 9007 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 9008 phba->sli.mbox_active = NULL; 9009 spin_unlock_irq(&phba->hbalock); 9010 } 9011 9012 /* Abort all iocbs associated with the hba */ 9013 lpfc_sli_hba_iocb_abort(phba); 9014 9015 /* Wait for completion of device XRI exchange busy */ 9016 lpfc_sli4_xri_exchange_busy_wait(phba); 9017 9018 /* Disable PCI subsystem interrupt */ 9019 lpfc_sli4_disable_intr(phba); 9020 9021 /* Disable SR-IOV if enabled */ 9022 if (phba->cfg_sriov_nr_virtfn) 9023 pci_disable_sriov(pdev); 9024 9025 /* Stop kthread signal shall trigger work_done one more time */ 9026 kthread_stop(phba->worker_thread); 9027 9028 /* Reset SLI4 HBA FCoE function */ 9029 lpfc_pci_function_reset(phba); 9030 lpfc_sli4_queue_destroy(phba); 9031 9032 /* Stop the SLI4 device port */ 9033 phba->pport->work_port_events = 0; 9034 } 9035 9036 /** 9037 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 9038 * @phba: Pointer to HBA context object. 9039 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 9040 * 9041 * This function is called in the SLI4 code path to read the port's 9042 * sli4 capabilities. 9043 * 9044 * This function may be be called from any context that can block-wait 9045 * for the completion. The expectation is that this routine is called 9046 * typically from probe_one or from the online routine. 9047 **/ 9048 int 9049 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 9050 { 9051 int rc; 9052 struct lpfc_mqe *mqe; 9053 struct lpfc_pc_sli4_params *sli4_params; 9054 uint32_t mbox_tmo; 9055 9056 rc = 0; 9057 mqe = &mboxq->u.mqe; 9058 9059 /* Read the port's SLI4 Parameters port capabilities */ 9060 lpfc_pc_sli4_params(mboxq); 9061 if (!phba->sli4_hba.intr_enable) 9062 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9063 else { 9064 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 9065 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 9066 } 9067 9068 if (unlikely(rc)) 9069 return 1; 9070 9071 sli4_params = &phba->sli4_hba.pc_sli4_params; 9072 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 9073 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 9074 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 9075 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 9076 &mqe->un.sli4_params); 9077 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 9078 &mqe->un.sli4_params); 9079 sli4_params->proto_types = mqe->un.sli4_params.word3; 9080 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 9081 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 9082 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 9083 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 9084 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 9085 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 9086 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 9087 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 9088 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 9089 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 9090 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 9091 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 9092 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 9093 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 9094 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 9095 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 9096 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 9097 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 9098 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 9099 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 9100 9101 /* Make sure that sge_supp_len can be handled by the driver */ 9102 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 9103 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 9104 9105 return rc; 9106 } 9107 9108 /** 9109 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 9110 * @phba: Pointer to HBA context object. 9111 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 9112 * 9113 * This function is called in the SLI4 code path to read the port's 9114 * sli4 capabilities. 9115 * 9116 * This function may be be called from any context that can block-wait 9117 * for the completion. The expectation is that this routine is called 9118 * typically from probe_one or from the online routine. 9119 **/ 9120 int 9121 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 9122 { 9123 int rc; 9124 struct lpfc_mqe *mqe = &mboxq->u.mqe; 9125 struct lpfc_pc_sli4_params *sli4_params; 9126 uint32_t mbox_tmo; 9127 int length; 9128 struct lpfc_sli4_parameters *mbx_sli4_parameters; 9129 9130 /* 9131 * By default, the driver assumes the SLI4 port requires RPI 9132 * header postings. The SLI4_PARAM response will correct this 9133 * assumption. 9134 */ 9135 phba->sli4_hba.rpi_hdrs_in_use = 1; 9136 9137 /* Read the port's SLI4 Config Parameters */ 9138 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 9139 sizeof(struct lpfc_sli4_cfg_mhdr)); 9140 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 9141 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 9142 length, LPFC_SLI4_MBX_EMBED); 9143 if (!phba->sli4_hba.intr_enable) 9144 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9145 else { 9146 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 9147 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 9148 } 9149 if (unlikely(rc)) 9150 return rc; 9151 sli4_params = &phba->sli4_hba.pc_sli4_params; 9152 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 9153 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 9154 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 9155 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 9156 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 9157 mbx_sli4_parameters); 9158 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 9159 mbx_sli4_parameters); 9160 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 9161 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 9162 else 9163 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 9164 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 9165 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 9166 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 9167 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 9168 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 9169 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 9170 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters); 9171 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 9172 mbx_sli4_parameters); 9173 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 9174 mbx_sli4_parameters); 9175 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 9176 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 9177 9178 /* Make sure that sge_supp_len can be handled by the driver */ 9179 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 9180 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 9181 9182 return 0; 9183 } 9184 9185 /** 9186 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 9187 * @pdev: pointer to PCI device 9188 * @pid: pointer to PCI device identifier 9189 * 9190 * This routine is to be called to attach a device with SLI-3 interface spec 9191 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 9192 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 9193 * information of the device and driver to see if the driver state that it can 9194 * support this kind of device. If the match is successful, the driver core 9195 * invokes this routine. If this routine determines it can claim the HBA, it 9196 * does all the initialization that it needs to do to handle the HBA properly. 9197 * 9198 * Return code 9199 * 0 - driver can claim the device 9200 * negative value - driver can not claim the device 9201 **/ 9202 static int 9203 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 9204 { 9205 struct lpfc_hba *phba; 9206 struct lpfc_vport *vport = NULL; 9207 struct Scsi_Host *shost = NULL; 9208 int error; 9209 uint32_t cfg_mode, intr_mode; 9210 9211 /* Allocate memory for HBA structure */ 9212 phba = lpfc_hba_alloc(pdev); 9213 if (!phba) 9214 return -ENOMEM; 9215 9216 /* Perform generic PCI device enabling operation */ 9217 error = lpfc_enable_pci_dev(phba); 9218 if (error) 9219 goto out_free_phba; 9220 9221 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 9222 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 9223 if (error) 9224 goto out_disable_pci_dev; 9225 9226 /* Set up SLI-3 specific device PCI memory space */ 9227 error = lpfc_sli_pci_mem_setup(phba); 9228 if (error) { 9229 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9230 "1402 Failed to set up pci memory space.\n"); 9231 goto out_disable_pci_dev; 9232 } 9233 9234 /* Set up phase-1 common device driver resources */ 9235 error = lpfc_setup_driver_resource_phase1(phba); 9236 if (error) { 9237 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9238 "1403 Failed to set up driver resource.\n"); 9239 goto out_unset_pci_mem_s3; 9240 } 9241 9242 /* Set up SLI-3 specific device driver resources */ 9243 error = lpfc_sli_driver_resource_setup(phba); 9244 if (error) { 9245 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9246 "1404 Failed to set up driver resource.\n"); 9247 goto out_unset_pci_mem_s3; 9248 } 9249 9250 /* Initialize and populate the iocb list per host */ 9251 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 9252 if (error) { 9253 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9254 "1405 Failed to initialize iocb list.\n"); 9255 goto out_unset_driver_resource_s3; 9256 } 9257 9258 /* Set up common device driver resources */ 9259 error = lpfc_setup_driver_resource_phase2(phba); 9260 if (error) { 9261 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9262 "1406 Failed to set up driver resource.\n"); 9263 goto out_free_iocb_list; 9264 } 9265 9266 /* Get the default values for Model Name and Description */ 9267 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 9268 9269 /* Create SCSI host to the physical port */ 9270 error = lpfc_create_shost(phba); 9271 if (error) { 9272 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9273 "1407 Failed to create scsi host.\n"); 9274 goto out_unset_driver_resource; 9275 } 9276 9277 /* Configure sysfs attributes */ 9278 vport = phba->pport; 9279 error = lpfc_alloc_sysfs_attr(vport); 9280 if (error) { 9281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9282 "1476 Failed to allocate sysfs attr\n"); 9283 goto out_destroy_shost; 9284 } 9285 9286 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 9287 /* Now, trying to enable interrupt and bring up the device */ 9288 cfg_mode = phba->cfg_use_msi; 9289 while (true) { 9290 /* Put device to a known state before enabling interrupt */ 9291 lpfc_stop_port(phba); 9292 /* Configure and enable interrupt */ 9293 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 9294 if (intr_mode == LPFC_INTR_ERROR) { 9295 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9296 "0431 Failed to enable interrupt.\n"); 9297 error = -ENODEV; 9298 goto out_free_sysfs_attr; 9299 } 9300 /* SLI-3 HBA setup */ 9301 if (lpfc_sli_hba_setup(phba)) { 9302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9303 "1477 Failed to set up hba\n"); 9304 error = -ENODEV; 9305 goto out_remove_device; 9306 } 9307 9308 /* Wait 50ms for the interrupts of previous mailbox commands */ 9309 msleep(50); 9310 /* Check active interrupts on message signaled interrupts */ 9311 if (intr_mode == 0 || 9312 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 9313 /* Log the current active interrupt mode */ 9314 phba->intr_mode = intr_mode; 9315 lpfc_log_intr_mode(phba, intr_mode); 9316 break; 9317 } else { 9318 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9319 "0447 Configure interrupt mode (%d) " 9320 "failed active interrupt test.\n", 9321 intr_mode); 9322 /* Disable the current interrupt mode */ 9323 lpfc_sli_disable_intr(phba); 9324 /* Try next level of interrupt mode */ 9325 cfg_mode = --intr_mode; 9326 } 9327 } 9328 9329 /* Perform post initialization setup */ 9330 lpfc_post_init_setup(phba); 9331 9332 /* Check if there are static vports to be created. */ 9333 lpfc_create_static_vport(phba); 9334 9335 return 0; 9336 9337 out_remove_device: 9338 lpfc_unset_hba(phba); 9339 out_free_sysfs_attr: 9340 lpfc_free_sysfs_attr(vport); 9341 out_destroy_shost: 9342 lpfc_destroy_shost(phba); 9343 out_unset_driver_resource: 9344 lpfc_unset_driver_resource_phase2(phba); 9345 out_free_iocb_list: 9346 lpfc_free_iocb_list(phba); 9347 out_unset_driver_resource_s3: 9348 lpfc_sli_driver_resource_unset(phba); 9349 out_unset_pci_mem_s3: 9350 lpfc_sli_pci_mem_unset(phba); 9351 out_disable_pci_dev: 9352 lpfc_disable_pci_dev(phba); 9353 if (shost) 9354 scsi_host_put(shost); 9355 out_free_phba: 9356 lpfc_hba_free(phba); 9357 return error; 9358 } 9359 9360 /** 9361 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 9362 * @pdev: pointer to PCI device 9363 * 9364 * This routine is to be called to disattach a device with SLI-3 interface 9365 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 9366 * removed from PCI bus, it performs all the necessary cleanup for the HBA 9367 * device to be removed from the PCI subsystem properly. 9368 **/ 9369 static void 9370 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 9371 { 9372 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9373 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 9374 struct lpfc_vport **vports; 9375 struct lpfc_hba *phba = vport->phba; 9376 int i; 9377 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 9378 9379 spin_lock_irq(&phba->hbalock); 9380 vport->load_flag |= FC_UNLOADING; 9381 spin_unlock_irq(&phba->hbalock); 9382 9383 lpfc_free_sysfs_attr(vport); 9384 9385 /* Release all the vports against this physical port */ 9386 vports = lpfc_create_vport_work_array(phba); 9387 if (vports != NULL) 9388 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 9389 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 9390 continue; 9391 fc_vport_terminate(vports[i]->fc_vport); 9392 } 9393 lpfc_destroy_vport_work_array(phba, vports); 9394 9395 /* Remove FC host and then SCSI host with the physical port */ 9396 fc_remove_host(shost); 9397 scsi_remove_host(shost); 9398 lpfc_cleanup(vport); 9399 9400 /* 9401 * Bring down the SLI Layer. This step disable all interrupts, 9402 * clears the rings, discards all mailbox commands, and resets 9403 * the HBA. 9404 */ 9405 9406 /* HBA interrupt will be disabled after this call */ 9407 lpfc_sli_hba_down(phba); 9408 /* Stop kthread signal shall trigger work_done one more time */ 9409 kthread_stop(phba->worker_thread); 9410 /* Final cleanup of txcmplq and reset the HBA */ 9411 lpfc_sli_brdrestart(phba); 9412 9413 kfree(phba->vpi_bmask); 9414 kfree(phba->vpi_ids); 9415 9416 lpfc_stop_hba_timers(phba); 9417 spin_lock_irq(&phba->hbalock); 9418 list_del_init(&vport->listentry); 9419 spin_unlock_irq(&phba->hbalock); 9420 9421 lpfc_debugfs_terminate(vport); 9422 9423 /* Disable SR-IOV if enabled */ 9424 if (phba->cfg_sriov_nr_virtfn) 9425 pci_disable_sriov(pdev); 9426 9427 /* Disable interrupt */ 9428 lpfc_sli_disable_intr(phba); 9429 9430 scsi_host_put(shost); 9431 9432 /* 9433 * Call scsi_free before mem_free since scsi bufs are released to their 9434 * corresponding pools here. 9435 */ 9436 lpfc_scsi_free(phba); 9437 lpfc_mem_free_all(phba); 9438 9439 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 9440 phba->hbqslimp.virt, phba->hbqslimp.phys); 9441 9442 /* Free resources associated with SLI2 interface */ 9443 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 9444 phba->slim2p.virt, phba->slim2p.phys); 9445 9446 /* unmap adapter SLIM and Control Registers */ 9447 iounmap(phba->ctrl_regs_memmap_p); 9448 iounmap(phba->slim_memmap_p); 9449 9450 lpfc_hba_free(phba); 9451 9452 pci_release_selected_regions(pdev, bars); 9453 pci_disable_device(pdev); 9454 } 9455 9456 /** 9457 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 9458 * @pdev: pointer to PCI device 9459 * @msg: power management message 9460 * 9461 * This routine is to be called from the kernel's PCI subsystem to support 9462 * system Power Management (PM) to device with SLI-3 interface spec. When 9463 * PM invokes this method, it quiesces the device by stopping the driver's 9464 * worker thread for the device, turning off device's interrupt and DMA, 9465 * and bring the device offline. Note that as the driver implements the 9466 * minimum PM requirements to a power-aware driver's PM support for the 9467 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 9468 * to the suspend() method call will be treated as SUSPEND and the driver will 9469 * fully reinitialize its device during resume() method call, the driver will 9470 * set device to PCI_D3hot state in PCI config space instead of setting it 9471 * according to the @msg provided by the PM. 9472 * 9473 * Return code 9474 * 0 - driver suspended the device 9475 * Error otherwise 9476 **/ 9477 static int 9478 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 9479 { 9480 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9481 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9482 9483 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9484 "0473 PCI device Power Management suspend.\n"); 9485 9486 /* Bring down the device */ 9487 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 9488 lpfc_offline(phba); 9489 kthread_stop(phba->worker_thread); 9490 9491 /* Disable interrupt from device */ 9492 lpfc_sli_disable_intr(phba); 9493 9494 /* Save device state to PCI config space */ 9495 pci_save_state(pdev); 9496 pci_set_power_state(pdev, PCI_D3hot); 9497 9498 return 0; 9499 } 9500 9501 /** 9502 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 9503 * @pdev: pointer to PCI device 9504 * 9505 * This routine is to be called from the kernel's PCI subsystem to support 9506 * system Power Management (PM) to device with SLI-3 interface spec. When PM 9507 * invokes this method, it restores the device's PCI config space state and 9508 * fully reinitializes the device and brings it online. Note that as the 9509 * driver implements the minimum PM requirements to a power-aware driver's 9510 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 9511 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 9512 * driver will fully reinitialize its device during resume() method call, 9513 * the device will be set to PCI_D0 directly in PCI config space before 9514 * restoring the state. 9515 * 9516 * Return code 9517 * 0 - driver suspended the device 9518 * Error otherwise 9519 **/ 9520 static int 9521 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 9522 { 9523 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9524 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9525 uint32_t intr_mode; 9526 int error; 9527 9528 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9529 "0452 PCI device Power Management resume.\n"); 9530 9531 /* Restore device state from PCI config space */ 9532 pci_set_power_state(pdev, PCI_D0); 9533 pci_restore_state(pdev); 9534 9535 /* 9536 * As the new kernel behavior of pci_restore_state() API call clears 9537 * device saved_state flag, need to save the restored state again. 9538 */ 9539 pci_save_state(pdev); 9540 9541 if (pdev->is_busmaster) 9542 pci_set_master(pdev); 9543 9544 /* Startup the kernel thread for this host adapter. */ 9545 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9546 "lpfc_worker_%d", phba->brd_no); 9547 if (IS_ERR(phba->worker_thread)) { 9548 error = PTR_ERR(phba->worker_thread); 9549 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9550 "0434 PM resume failed to start worker " 9551 "thread: error=x%x.\n", error); 9552 return error; 9553 } 9554 9555 /* Configure and enable interrupt */ 9556 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 9557 if (intr_mode == LPFC_INTR_ERROR) { 9558 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9559 "0430 PM resume Failed to enable interrupt\n"); 9560 return -EIO; 9561 } else 9562 phba->intr_mode = intr_mode; 9563 9564 /* Restart HBA and bring it online */ 9565 lpfc_sli_brdrestart(phba); 9566 lpfc_online(phba); 9567 9568 /* Log the current active interrupt mode */ 9569 lpfc_log_intr_mode(phba, phba->intr_mode); 9570 9571 return 0; 9572 } 9573 9574 /** 9575 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 9576 * @phba: pointer to lpfc hba data structure. 9577 * 9578 * This routine is called to prepare the SLI3 device for PCI slot recover. It 9579 * aborts all the outstanding SCSI I/Os to the pci device. 9580 **/ 9581 static void 9582 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 9583 { 9584 struct lpfc_sli *psli = &phba->sli; 9585 struct lpfc_sli_ring *pring; 9586 9587 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9588 "2723 PCI channel I/O abort preparing for recovery\n"); 9589 9590 /* 9591 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9592 * and let the SCSI mid-layer to retry them to recover. 9593 */ 9594 pring = &psli->ring[psli->fcp_ring]; 9595 lpfc_sli_abort_iocb_ring(phba, pring); 9596 } 9597 9598 /** 9599 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 9600 * @phba: pointer to lpfc hba data structure. 9601 * 9602 * This routine is called to prepare the SLI3 device for PCI slot reset. It 9603 * disables the device interrupt and pci device, and aborts the internal FCP 9604 * pending I/Os. 9605 **/ 9606 static void 9607 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 9608 { 9609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9610 "2710 PCI channel disable preparing for reset\n"); 9611 9612 /* Block any management I/Os to the device */ 9613 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 9614 9615 /* Block all SCSI devices' I/Os on the host */ 9616 lpfc_scsi_dev_block(phba); 9617 9618 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9619 lpfc_sli_flush_fcp_rings(phba); 9620 9621 /* stop all timers */ 9622 lpfc_stop_hba_timers(phba); 9623 9624 /* Disable interrupt and pci device */ 9625 lpfc_sli_disable_intr(phba); 9626 pci_disable_device(phba->pcidev); 9627 } 9628 9629 /** 9630 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 9631 * @phba: pointer to lpfc hba data structure. 9632 * 9633 * This routine is called to prepare the SLI3 device for PCI slot permanently 9634 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9635 * pending I/Os. 9636 **/ 9637 static void 9638 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9639 { 9640 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9641 "2711 PCI channel permanent disable for failure\n"); 9642 /* Block all SCSI devices' I/Os on the host */ 9643 lpfc_scsi_dev_block(phba); 9644 9645 /* stop all timers */ 9646 lpfc_stop_hba_timers(phba); 9647 9648 /* Clean up all driver's outstanding SCSI I/Os */ 9649 lpfc_sli_flush_fcp_rings(phba); 9650 } 9651 9652 /** 9653 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 9654 * @pdev: pointer to PCI device. 9655 * @state: the current PCI connection state. 9656 * 9657 * This routine is called from the PCI subsystem for I/O error handling to 9658 * device with SLI-3 interface spec. This function is called by the PCI 9659 * subsystem after a PCI bus error affecting this device has been detected. 9660 * When this function is invoked, it will need to stop all the I/Os and 9661 * interrupt(s) to the device. Once that is done, it will return 9662 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 9663 * as desired. 9664 * 9665 * Return codes 9666 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 9667 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9668 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9669 **/ 9670 static pci_ers_result_t 9671 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 9672 { 9673 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9674 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9675 9676 switch (state) { 9677 case pci_channel_io_normal: 9678 /* Non-fatal error, prepare for recovery */ 9679 lpfc_sli_prep_dev_for_recover(phba); 9680 return PCI_ERS_RESULT_CAN_RECOVER; 9681 case pci_channel_io_frozen: 9682 /* Fatal error, prepare for slot reset */ 9683 lpfc_sli_prep_dev_for_reset(phba); 9684 return PCI_ERS_RESULT_NEED_RESET; 9685 case pci_channel_io_perm_failure: 9686 /* Permanent failure, prepare for device down */ 9687 lpfc_sli_prep_dev_for_perm_failure(phba); 9688 return PCI_ERS_RESULT_DISCONNECT; 9689 default: 9690 /* Unknown state, prepare and request slot reset */ 9691 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9692 "0472 Unknown PCI error state: x%x\n", state); 9693 lpfc_sli_prep_dev_for_reset(phba); 9694 return PCI_ERS_RESULT_NEED_RESET; 9695 } 9696 } 9697 9698 /** 9699 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 9700 * @pdev: pointer to PCI device. 9701 * 9702 * This routine is called from the PCI subsystem for error handling to 9703 * device with SLI-3 interface spec. This is called after PCI bus has been 9704 * reset to restart the PCI card from scratch, as if from a cold-boot. 9705 * During the PCI subsystem error recovery, after driver returns 9706 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 9707 * recovery and then call this routine before calling the .resume method 9708 * to recover the device. This function will initialize the HBA device, 9709 * enable the interrupt, but it will just put the HBA to offline state 9710 * without passing any I/O traffic. 9711 * 9712 * Return codes 9713 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9714 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9715 */ 9716 static pci_ers_result_t 9717 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 9718 { 9719 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9720 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9721 struct lpfc_sli *psli = &phba->sli; 9722 uint32_t intr_mode; 9723 9724 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9725 if (pci_enable_device_mem(pdev)) { 9726 printk(KERN_ERR "lpfc: Cannot re-enable " 9727 "PCI device after reset.\n"); 9728 return PCI_ERS_RESULT_DISCONNECT; 9729 } 9730 9731 pci_restore_state(pdev); 9732 9733 /* 9734 * As the new kernel behavior of pci_restore_state() API call clears 9735 * device saved_state flag, need to save the restored state again. 9736 */ 9737 pci_save_state(pdev); 9738 9739 if (pdev->is_busmaster) 9740 pci_set_master(pdev); 9741 9742 spin_lock_irq(&phba->hbalock); 9743 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 9744 spin_unlock_irq(&phba->hbalock); 9745 9746 /* Configure and enable interrupt */ 9747 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 9748 if (intr_mode == LPFC_INTR_ERROR) { 9749 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9750 "0427 Cannot re-enable interrupt after " 9751 "slot reset.\n"); 9752 return PCI_ERS_RESULT_DISCONNECT; 9753 } else 9754 phba->intr_mode = intr_mode; 9755 9756 /* Take device offline, it will perform cleanup */ 9757 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 9758 lpfc_offline(phba); 9759 lpfc_sli_brdrestart(phba); 9760 9761 /* Log the current active interrupt mode */ 9762 lpfc_log_intr_mode(phba, phba->intr_mode); 9763 9764 return PCI_ERS_RESULT_RECOVERED; 9765 } 9766 9767 /** 9768 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 9769 * @pdev: pointer to PCI device 9770 * 9771 * This routine is called from the PCI subsystem for error handling to device 9772 * with SLI-3 interface spec. It is called when kernel error recovery tells 9773 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 9774 * error recovery. After this call, traffic can start to flow from this device 9775 * again. 9776 */ 9777 static void 9778 lpfc_io_resume_s3(struct pci_dev *pdev) 9779 { 9780 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9781 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9782 9783 /* Bring device online, it will be no-op for non-fatal error resume */ 9784 lpfc_online(phba); 9785 9786 /* Clean up Advanced Error Reporting (AER) if needed */ 9787 if (phba->hba_flag & HBA_AER_ENABLED) 9788 pci_cleanup_aer_uncorrect_error_status(pdev); 9789 } 9790 9791 /** 9792 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 9793 * @phba: pointer to lpfc hba data structure. 9794 * 9795 * returns the number of ELS/CT IOCBs to reserve 9796 **/ 9797 int 9798 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 9799 { 9800 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 9801 9802 if (phba->sli_rev == LPFC_SLI_REV4) { 9803 if (max_xri <= 100) 9804 return 10; 9805 else if (max_xri <= 256) 9806 return 25; 9807 else if (max_xri <= 512) 9808 return 50; 9809 else if (max_xri <= 1024) 9810 return 100; 9811 else if (max_xri <= 1536) 9812 return 150; 9813 else if (max_xri <= 2048) 9814 return 200; 9815 else 9816 return 250; 9817 } else 9818 return 0; 9819 } 9820 9821 /** 9822 * lpfc_write_firmware - attempt to write a firmware image to the port 9823 * @fw: pointer to firmware image returned from request_firmware. 9824 * @phba: pointer to lpfc hba data structure. 9825 * 9826 **/ 9827 static void 9828 lpfc_write_firmware(const struct firmware *fw, void *context) 9829 { 9830 struct lpfc_hba *phba = (struct lpfc_hba *)context; 9831 char fwrev[FW_REV_STR_SIZE]; 9832 struct lpfc_grp_hdr *image; 9833 struct list_head dma_buffer_list; 9834 int i, rc = 0; 9835 struct lpfc_dmabuf *dmabuf, *next; 9836 uint32_t offset = 0, temp_offset = 0; 9837 9838 /* It can be null in no-wait mode, sanity check */ 9839 if (!fw) { 9840 rc = -ENXIO; 9841 goto out; 9842 } 9843 image = (struct lpfc_grp_hdr *)fw->data; 9844 9845 INIT_LIST_HEAD(&dma_buffer_list); 9846 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) || 9847 (bf_get_be32(lpfc_grp_hdr_file_type, image) != 9848 LPFC_FILE_TYPE_GROUP) || 9849 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) || 9850 (be32_to_cpu(image->size) != fw->size)) { 9851 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9852 "3022 Invalid FW image found. " 9853 "Magic:%x Type:%x ID:%x\n", 9854 be32_to_cpu(image->magic_number), 9855 bf_get_be32(lpfc_grp_hdr_file_type, image), 9856 bf_get_be32(lpfc_grp_hdr_id, image)); 9857 rc = -EINVAL; 9858 goto release_out; 9859 } 9860 lpfc_decode_firmware_rev(phba, fwrev, 1); 9861 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 9862 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9863 "3023 Updating Firmware, Current Version:%s " 9864 "New Version:%s\n", 9865 fwrev, image->revision); 9866 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 9867 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 9868 GFP_KERNEL); 9869 if (!dmabuf) { 9870 rc = -ENOMEM; 9871 goto release_out; 9872 } 9873 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 9874 SLI4_PAGE_SIZE, 9875 &dmabuf->phys, 9876 GFP_KERNEL); 9877 if (!dmabuf->virt) { 9878 kfree(dmabuf); 9879 rc = -ENOMEM; 9880 goto release_out; 9881 } 9882 list_add_tail(&dmabuf->list, &dma_buffer_list); 9883 } 9884 while (offset < fw->size) { 9885 temp_offset = offset; 9886 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 9887 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 9888 memcpy(dmabuf->virt, 9889 fw->data + temp_offset, 9890 fw->size - temp_offset); 9891 temp_offset = fw->size; 9892 break; 9893 } 9894 memcpy(dmabuf->virt, fw->data + temp_offset, 9895 SLI4_PAGE_SIZE); 9896 temp_offset += SLI4_PAGE_SIZE; 9897 } 9898 rc = lpfc_wr_object(phba, &dma_buffer_list, 9899 (fw->size - offset), &offset); 9900 if (rc) 9901 goto release_out; 9902 } 9903 rc = offset; 9904 } 9905 9906 release_out: 9907 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 9908 list_del(&dmabuf->list); 9909 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 9910 dmabuf->virt, dmabuf->phys); 9911 kfree(dmabuf); 9912 } 9913 release_firmware(fw); 9914 out: 9915 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9916 "3024 Firmware update done: %d.\n", rc); 9917 return; 9918 } 9919 9920 /** 9921 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 9922 * @phba: pointer to lpfc hba data structure. 9923 * 9924 * This routine is called to perform Linux generic firmware upgrade on device 9925 * that supports such feature. 9926 **/ 9927 int 9928 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 9929 { 9930 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 9931 int ret; 9932 const struct firmware *fw; 9933 9934 /* Only supported on SLI4 interface type 2 for now */ 9935 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 9936 LPFC_SLI_INTF_IF_TYPE_2) 9937 return -EPERM; 9938 9939 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 9940 9941 if (fw_upgrade == INT_FW_UPGRADE) { 9942 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 9943 file_name, &phba->pcidev->dev, 9944 GFP_KERNEL, (void *)phba, 9945 lpfc_write_firmware); 9946 } else if (fw_upgrade == RUN_FW_UPGRADE) { 9947 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 9948 if (!ret) 9949 lpfc_write_firmware(fw, (void *)phba); 9950 } else { 9951 ret = -EINVAL; 9952 } 9953 9954 return ret; 9955 } 9956 9957 /** 9958 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 9959 * @pdev: pointer to PCI device 9960 * @pid: pointer to PCI device identifier 9961 * 9962 * This routine is called from the kernel's PCI subsystem to device with 9963 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9964 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 9965 * information of the device and driver to see if the driver state that it 9966 * can support this kind of device. If the match is successful, the driver 9967 * core invokes this routine. If this routine determines it can claim the HBA, 9968 * it does all the initialization that it needs to do to handle the HBA 9969 * properly. 9970 * 9971 * Return code 9972 * 0 - driver can claim the device 9973 * negative value - driver can not claim the device 9974 **/ 9975 static int 9976 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 9977 { 9978 struct lpfc_hba *phba; 9979 struct lpfc_vport *vport = NULL; 9980 struct Scsi_Host *shost = NULL; 9981 int error, ret; 9982 uint32_t cfg_mode, intr_mode; 9983 int adjusted_fcp_io_channel; 9984 9985 /* Allocate memory for HBA structure */ 9986 phba = lpfc_hba_alloc(pdev); 9987 if (!phba) 9988 return -ENOMEM; 9989 9990 /* Perform generic PCI device enabling operation */ 9991 error = lpfc_enable_pci_dev(phba); 9992 if (error) 9993 goto out_free_phba; 9994 9995 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 9996 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 9997 if (error) 9998 goto out_disable_pci_dev; 9999 10000 /* Set up SLI-4 specific device PCI memory space */ 10001 error = lpfc_sli4_pci_mem_setup(phba); 10002 if (error) { 10003 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10004 "1410 Failed to set up pci memory space.\n"); 10005 goto out_disable_pci_dev; 10006 } 10007 10008 /* Set up phase-1 common device driver resources */ 10009 error = lpfc_setup_driver_resource_phase1(phba); 10010 if (error) { 10011 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10012 "1411 Failed to set up driver resource.\n"); 10013 goto out_unset_pci_mem_s4; 10014 } 10015 10016 /* Set up SLI-4 Specific device driver resources */ 10017 error = lpfc_sli4_driver_resource_setup(phba); 10018 if (error) { 10019 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10020 "1412 Failed to set up driver resource.\n"); 10021 goto out_unset_pci_mem_s4; 10022 } 10023 10024 /* Initialize and populate the iocb list per host */ 10025 10026 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10027 "2821 initialize iocb list %d.\n", 10028 phba->cfg_iocb_cnt*1024); 10029 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 10030 10031 if (error) { 10032 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10033 "1413 Failed to initialize iocb list.\n"); 10034 goto out_unset_driver_resource_s4; 10035 } 10036 10037 INIT_LIST_HEAD(&phba->active_rrq_list); 10038 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 10039 10040 /* Set up common device driver resources */ 10041 error = lpfc_setup_driver_resource_phase2(phba); 10042 if (error) { 10043 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10044 "1414 Failed to set up driver resource.\n"); 10045 goto out_free_iocb_list; 10046 } 10047 10048 /* Get the default values for Model Name and Description */ 10049 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 10050 10051 /* Create SCSI host to the physical port */ 10052 error = lpfc_create_shost(phba); 10053 if (error) { 10054 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10055 "1415 Failed to create scsi host.\n"); 10056 goto out_unset_driver_resource; 10057 } 10058 10059 /* Configure sysfs attributes */ 10060 vport = phba->pport; 10061 error = lpfc_alloc_sysfs_attr(vport); 10062 if (error) { 10063 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10064 "1416 Failed to allocate sysfs attr\n"); 10065 goto out_destroy_shost; 10066 } 10067 10068 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 10069 /* Now, trying to enable interrupt and bring up the device */ 10070 cfg_mode = phba->cfg_use_msi; 10071 10072 /* Put device to a known state before enabling interrupt */ 10073 lpfc_stop_port(phba); 10074 /* Configure and enable interrupt */ 10075 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 10076 if (intr_mode == LPFC_INTR_ERROR) { 10077 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10078 "0426 Failed to enable interrupt.\n"); 10079 error = -ENODEV; 10080 goto out_free_sysfs_attr; 10081 } 10082 /* Default to single EQ for non-MSI-X */ 10083 if (phba->intr_type != MSIX) 10084 adjusted_fcp_io_channel = 1; 10085 else 10086 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel; 10087 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel; 10088 /* Set up SLI-4 HBA */ 10089 if (lpfc_sli4_hba_setup(phba)) { 10090 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10091 "1421 Failed to set up hba\n"); 10092 error = -ENODEV; 10093 goto out_disable_intr; 10094 } 10095 10096 /* Log the current active interrupt mode */ 10097 phba->intr_mode = intr_mode; 10098 lpfc_log_intr_mode(phba, intr_mode); 10099 10100 /* Perform post initialization setup */ 10101 lpfc_post_init_setup(phba); 10102 10103 /* check for firmware upgrade or downgrade */ 10104 if (phba->cfg_request_firmware_upgrade) 10105 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 10106 10107 /* Check if there are static vports to be created. */ 10108 lpfc_create_static_vport(phba); 10109 return 0; 10110 10111 out_disable_intr: 10112 lpfc_sli4_disable_intr(phba); 10113 out_free_sysfs_attr: 10114 lpfc_free_sysfs_attr(vport); 10115 out_destroy_shost: 10116 lpfc_destroy_shost(phba); 10117 out_unset_driver_resource: 10118 lpfc_unset_driver_resource_phase2(phba); 10119 out_free_iocb_list: 10120 lpfc_free_iocb_list(phba); 10121 out_unset_driver_resource_s4: 10122 lpfc_sli4_driver_resource_unset(phba); 10123 out_unset_pci_mem_s4: 10124 lpfc_sli4_pci_mem_unset(phba); 10125 out_disable_pci_dev: 10126 lpfc_disable_pci_dev(phba); 10127 if (shost) 10128 scsi_host_put(shost); 10129 out_free_phba: 10130 lpfc_hba_free(phba); 10131 return error; 10132 } 10133 10134 /** 10135 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 10136 * @pdev: pointer to PCI device 10137 * 10138 * This routine is called from the kernel's PCI subsystem to device with 10139 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 10140 * removed from PCI bus, it performs all the necessary cleanup for the HBA 10141 * device to be removed from the PCI subsystem properly. 10142 **/ 10143 static void 10144 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 10145 { 10146 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10147 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 10148 struct lpfc_vport **vports; 10149 struct lpfc_hba *phba = vport->phba; 10150 int i; 10151 10152 /* Mark the device unloading flag */ 10153 spin_lock_irq(&phba->hbalock); 10154 vport->load_flag |= FC_UNLOADING; 10155 spin_unlock_irq(&phba->hbalock); 10156 10157 /* Free the HBA sysfs attributes */ 10158 lpfc_free_sysfs_attr(vport); 10159 10160 /* Release all the vports against this physical port */ 10161 vports = lpfc_create_vport_work_array(phba); 10162 if (vports != NULL) 10163 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 10164 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 10165 continue; 10166 fc_vport_terminate(vports[i]->fc_vport); 10167 } 10168 lpfc_destroy_vport_work_array(phba, vports); 10169 10170 /* Remove FC host and then SCSI host with the physical port */ 10171 fc_remove_host(shost); 10172 scsi_remove_host(shost); 10173 10174 /* Perform cleanup on the physical port */ 10175 lpfc_cleanup(vport); 10176 10177 /* 10178 * Bring down the SLI Layer. This step disables all interrupts, 10179 * clears the rings, discards all mailbox commands, and resets 10180 * the HBA FCoE function. 10181 */ 10182 lpfc_debugfs_terminate(vport); 10183 lpfc_sli4_hba_unset(phba); 10184 10185 spin_lock_irq(&phba->hbalock); 10186 list_del_init(&vport->listentry); 10187 spin_unlock_irq(&phba->hbalock); 10188 10189 /* Perform scsi free before driver resource_unset since scsi 10190 * buffers are released to their corresponding pools here. 10191 */ 10192 lpfc_scsi_free(phba); 10193 10194 lpfc_sli4_driver_resource_unset(phba); 10195 10196 /* Unmap adapter Control and Doorbell registers */ 10197 lpfc_sli4_pci_mem_unset(phba); 10198 10199 /* Release PCI resources and disable device's PCI function */ 10200 scsi_host_put(shost); 10201 lpfc_disable_pci_dev(phba); 10202 10203 /* Finally, free the driver's device data structure */ 10204 lpfc_hba_free(phba); 10205 10206 return; 10207 } 10208 10209 /** 10210 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 10211 * @pdev: pointer to PCI device 10212 * @msg: power management message 10213 * 10214 * This routine is called from the kernel's PCI subsystem to support system 10215 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 10216 * this method, it quiesces the device by stopping the driver's worker 10217 * thread for the device, turning off device's interrupt and DMA, and bring 10218 * the device offline. Note that as the driver implements the minimum PM 10219 * requirements to a power-aware driver's PM support for suspend/resume -- all 10220 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 10221 * method call will be treated as SUSPEND and the driver will fully 10222 * reinitialize its device during resume() method call, the driver will set 10223 * device to PCI_D3hot state in PCI config space instead of setting it 10224 * according to the @msg provided by the PM. 10225 * 10226 * Return code 10227 * 0 - driver suspended the device 10228 * Error otherwise 10229 **/ 10230 static int 10231 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 10232 { 10233 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10234 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10235 10236 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10237 "2843 PCI device Power Management suspend.\n"); 10238 10239 /* Bring down the device */ 10240 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10241 lpfc_offline(phba); 10242 kthread_stop(phba->worker_thread); 10243 10244 /* Disable interrupt from device */ 10245 lpfc_sli4_disable_intr(phba); 10246 lpfc_sli4_queue_destroy(phba); 10247 10248 /* Save device state to PCI config space */ 10249 pci_save_state(pdev); 10250 pci_set_power_state(pdev, PCI_D3hot); 10251 10252 return 0; 10253 } 10254 10255 /** 10256 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 10257 * @pdev: pointer to PCI device 10258 * 10259 * This routine is called from the kernel's PCI subsystem to support system 10260 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 10261 * this method, it restores the device's PCI config space state and fully 10262 * reinitializes the device and brings it online. Note that as the driver 10263 * implements the minimum PM requirements to a power-aware driver's PM for 10264 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 10265 * to the suspend() method call will be treated as SUSPEND and the driver 10266 * will fully reinitialize its device during resume() method call, the device 10267 * will be set to PCI_D0 directly in PCI config space before restoring the 10268 * state. 10269 * 10270 * Return code 10271 * 0 - driver suspended the device 10272 * Error otherwise 10273 **/ 10274 static int 10275 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 10276 { 10277 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10278 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10279 uint32_t intr_mode; 10280 int error; 10281 10282 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10283 "0292 PCI device Power Management resume.\n"); 10284 10285 /* Restore device state from PCI config space */ 10286 pci_set_power_state(pdev, PCI_D0); 10287 pci_restore_state(pdev); 10288 10289 /* 10290 * As the new kernel behavior of pci_restore_state() API call clears 10291 * device saved_state flag, need to save the restored state again. 10292 */ 10293 pci_save_state(pdev); 10294 10295 if (pdev->is_busmaster) 10296 pci_set_master(pdev); 10297 10298 /* Startup the kernel thread for this host adapter. */ 10299 phba->worker_thread = kthread_run(lpfc_do_work, phba, 10300 "lpfc_worker_%d", phba->brd_no); 10301 if (IS_ERR(phba->worker_thread)) { 10302 error = PTR_ERR(phba->worker_thread); 10303 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10304 "0293 PM resume failed to start worker " 10305 "thread: error=x%x.\n", error); 10306 return error; 10307 } 10308 10309 /* Configure and enable interrupt */ 10310 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 10311 if (intr_mode == LPFC_INTR_ERROR) { 10312 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10313 "0294 PM resume Failed to enable interrupt\n"); 10314 return -EIO; 10315 } else 10316 phba->intr_mode = intr_mode; 10317 10318 /* Restart HBA and bring it online */ 10319 lpfc_sli_brdrestart(phba); 10320 lpfc_online(phba); 10321 10322 /* Log the current active interrupt mode */ 10323 lpfc_log_intr_mode(phba, phba->intr_mode); 10324 10325 return 0; 10326 } 10327 10328 /** 10329 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 10330 * @phba: pointer to lpfc hba data structure. 10331 * 10332 * This routine is called to prepare the SLI4 device for PCI slot recover. It 10333 * aborts all the outstanding SCSI I/Os to the pci device. 10334 **/ 10335 static void 10336 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 10337 { 10338 struct lpfc_sli *psli = &phba->sli; 10339 struct lpfc_sli_ring *pring; 10340 10341 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10342 "2828 PCI channel I/O abort preparing for recovery\n"); 10343 /* 10344 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 10345 * and let the SCSI mid-layer to retry them to recover. 10346 */ 10347 pring = &psli->ring[psli->fcp_ring]; 10348 lpfc_sli_abort_iocb_ring(phba, pring); 10349 } 10350 10351 /** 10352 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 10353 * @phba: pointer to lpfc hba data structure. 10354 * 10355 * This routine is called to prepare the SLI4 device for PCI slot reset. It 10356 * disables the device interrupt and pci device, and aborts the internal FCP 10357 * pending I/Os. 10358 **/ 10359 static void 10360 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 10361 { 10362 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10363 "2826 PCI channel disable preparing for reset\n"); 10364 10365 /* Block any management I/Os to the device */ 10366 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 10367 10368 /* Block all SCSI devices' I/Os on the host */ 10369 lpfc_scsi_dev_block(phba); 10370 10371 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 10372 lpfc_sli_flush_fcp_rings(phba); 10373 10374 /* stop all timers */ 10375 lpfc_stop_hba_timers(phba); 10376 10377 /* Disable interrupt and pci device */ 10378 lpfc_sli4_disable_intr(phba); 10379 lpfc_sli4_queue_destroy(phba); 10380 pci_disable_device(phba->pcidev); 10381 } 10382 10383 /** 10384 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 10385 * @phba: pointer to lpfc hba data structure. 10386 * 10387 * This routine is called to prepare the SLI4 device for PCI slot permanently 10388 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 10389 * pending I/Os. 10390 **/ 10391 static void 10392 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 10393 { 10394 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10395 "2827 PCI channel permanent disable for failure\n"); 10396 10397 /* Block all SCSI devices' I/Os on the host */ 10398 lpfc_scsi_dev_block(phba); 10399 10400 /* stop all timers */ 10401 lpfc_stop_hba_timers(phba); 10402 10403 /* Clean up all driver's outstanding SCSI I/Os */ 10404 lpfc_sli_flush_fcp_rings(phba); 10405 } 10406 10407 /** 10408 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 10409 * @pdev: pointer to PCI device. 10410 * @state: the current PCI connection state. 10411 * 10412 * This routine is called from the PCI subsystem for error handling to device 10413 * with SLI-4 interface spec. This function is called by the PCI subsystem 10414 * after a PCI bus error affecting this device has been detected. When this 10415 * function is invoked, it will need to stop all the I/Os and interrupt(s) 10416 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 10417 * for the PCI subsystem to perform proper recovery as desired. 10418 * 10419 * Return codes 10420 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10421 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10422 **/ 10423 static pci_ers_result_t 10424 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 10425 { 10426 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10427 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10428 10429 switch (state) { 10430 case pci_channel_io_normal: 10431 /* Non-fatal error, prepare for recovery */ 10432 lpfc_sli4_prep_dev_for_recover(phba); 10433 return PCI_ERS_RESULT_CAN_RECOVER; 10434 case pci_channel_io_frozen: 10435 /* Fatal error, prepare for slot reset */ 10436 lpfc_sli4_prep_dev_for_reset(phba); 10437 return PCI_ERS_RESULT_NEED_RESET; 10438 case pci_channel_io_perm_failure: 10439 /* Permanent failure, prepare for device down */ 10440 lpfc_sli4_prep_dev_for_perm_failure(phba); 10441 return PCI_ERS_RESULT_DISCONNECT; 10442 default: 10443 /* Unknown state, prepare and request slot reset */ 10444 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10445 "2825 Unknown PCI error state: x%x\n", state); 10446 lpfc_sli4_prep_dev_for_reset(phba); 10447 return PCI_ERS_RESULT_NEED_RESET; 10448 } 10449 } 10450 10451 /** 10452 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 10453 * @pdev: pointer to PCI device. 10454 * 10455 * This routine is called from the PCI subsystem for error handling to device 10456 * with SLI-4 interface spec. It is called after PCI bus has been reset to 10457 * restart the PCI card from scratch, as if from a cold-boot. During the 10458 * PCI subsystem error recovery, after the driver returns 10459 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 10460 * recovery and then call this routine before calling the .resume method to 10461 * recover the device. This function will initialize the HBA device, enable 10462 * the interrupt, but it will just put the HBA to offline state without 10463 * passing any I/O traffic. 10464 * 10465 * Return codes 10466 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10467 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10468 */ 10469 static pci_ers_result_t 10470 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 10471 { 10472 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10473 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10474 struct lpfc_sli *psli = &phba->sli; 10475 uint32_t intr_mode; 10476 10477 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 10478 if (pci_enable_device_mem(pdev)) { 10479 printk(KERN_ERR "lpfc: Cannot re-enable " 10480 "PCI device after reset.\n"); 10481 return PCI_ERS_RESULT_DISCONNECT; 10482 } 10483 10484 pci_restore_state(pdev); 10485 10486 /* 10487 * As the new kernel behavior of pci_restore_state() API call clears 10488 * device saved_state flag, need to save the restored state again. 10489 */ 10490 pci_save_state(pdev); 10491 10492 if (pdev->is_busmaster) 10493 pci_set_master(pdev); 10494 10495 spin_lock_irq(&phba->hbalock); 10496 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10497 spin_unlock_irq(&phba->hbalock); 10498 10499 /* Configure and enable interrupt */ 10500 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 10501 if (intr_mode == LPFC_INTR_ERROR) { 10502 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10503 "2824 Cannot re-enable interrupt after " 10504 "slot reset.\n"); 10505 return PCI_ERS_RESULT_DISCONNECT; 10506 } else 10507 phba->intr_mode = intr_mode; 10508 10509 /* Log the current active interrupt mode */ 10510 lpfc_log_intr_mode(phba, phba->intr_mode); 10511 10512 return PCI_ERS_RESULT_RECOVERED; 10513 } 10514 10515 /** 10516 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 10517 * @pdev: pointer to PCI device 10518 * 10519 * This routine is called from the PCI subsystem for error handling to device 10520 * with SLI-4 interface spec. It is called when kernel error recovery tells 10521 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10522 * error recovery. After this call, traffic can start to flow from this device 10523 * again. 10524 **/ 10525 static void 10526 lpfc_io_resume_s4(struct pci_dev *pdev) 10527 { 10528 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10529 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10530 10531 /* 10532 * In case of slot reset, as function reset is performed through 10533 * mailbox command which needs DMA to be enabled, this operation 10534 * has to be moved to the io resume phase. Taking device offline 10535 * will perform the necessary cleanup. 10536 */ 10537 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 10538 /* Perform device reset */ 10539 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10540 lpfc_offline(phba); 10541 lpfc_sli_brdrestart(phba); 10542 /* Bring the device back online */ 10543 lpfc_online(phba); 10544 } 10545 10546 /* Clean up Advanced Error Reporting (AER) if needed */ 10547 if (phba->hba_flag & HBA_AER_ENABLED) 10548 pci_cleanup_aer_uncorrect_error_status(pdev); 10549 } 10550 10551 /** 10552 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 10553 * @pdev: pointer to PCI device 10554 * @pid: pointer to PCI device identifier 10555 * 10556 * This routine is to be registered to the kernel's PCI subsystem. When an 10557 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 10558 * at PCI device-specific information of the device and driver to see if the 10559 * driver state that it can support this kind of device. If the match is 10560 * successful, the driver core invokes this routine. This routine dispatches 10561 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 10562 * do all the initialization that it needs to do to handle the HBA device 10563 * properly. 10564 * 10565 * Return code 10566 * 0 - driver can claim the device 10567 * negative value - driver can not claim the device 10568 **/ 10569 static int 10570 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 10571 { 10572 int rc; 10573 struct lpfc_sli_intf intf; 10574 10575 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 10576 return -ENODEV; 10577 10578 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 10579 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 10580 rc = lpfc_pci_probe_one_s4(pdev, pid); 10581 else 10582 rc = lpfc_pci_probe_one_s3(pdev, pid); 10583 10584 return rc; 10585 } 10586 10587 /** 10588 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 10589 * @pdev: pointer to PCI device 10590 * 10591 * This routine is to be registered to the kernel's PCI subsystem. When an 10592 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 10593 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 10594 * remove routine, which will perform all the necessary cleanup for the 10595 * device to be removed from the PCI subsystem properly. 10596 **/ 10597 static void 10598 lpfc_pci_remove_one(struct pci_dev *pdev) 10599 { 10600 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10601 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10602 10603 switch (phba->pci_dev_grp) { 10604 case LPFC_PCI_DEV_LP: 10605 lpfc_pci_remove_one_s3(pdev); 10606 break; 10607 case LPFC_PCI_DEV_OC: 10608 lpfc_pci_remove_one_s4(pdev); 10609 break; 10610 default: 10611 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10612 "1424 Invalid PCI device group: 0x%x\n", 10613 phba->pci_dev_grp); 10614 break; 10615 } 10616 return; 10617 } 10618 10619 /** 10620 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 10621 * @pdev: pointer to PCI device 10622 * @msg: power management message 10623 * 10624 * This routine is to be registered to the kernel's PCI subsystem to support 10625 * system Power Management (PM). When PM invokes this method, it dispatches 10626 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 10627 * suspend the device. 10628 * 10629 * Return code 10630 * 0 - driver suspended the device 10631 * Error otherwise 10632 **/ 10633 static int 10634 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 10635 { 10636 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10637 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10638 int rc = -ENODEV; 10639 10640 switch (phba->pci_dev_grp) { 10641 case LPFC_PCI_DEV_LP: 10642 rc = lpfc_pci_suspend_one_s3(pdev, msg); 10643 break; 10644 case LPFC_PCI_DEV_OC: 10645 rc = lpfc_pci_suspend_one_s4(pdev, msg); 10646 break; 10647 default: 10648 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10649 "1425 Invalid PCI device group: 0x%x\n", 10650 phba->pci_dev_grp); 10651 break; 10652 } 10653 return rc; 10654 } 10655 10656 /** 10657 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 10658 * @pdev: pointer to PCI device 10659 * 10660 * This routine is to be registered to the kernel's PCI subsystem to support 10661 * system Power Management (PM). When PM invokes this method, it dispatches 10662 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 10663 * resume the device. 10664 * 10665 * Return code 10666 * 0 - driver suspended the device 10667 * Error otherwise 10668 **/ 10669 static int 10670 lpfc_pci_resume_one(struct pci_dev *pdev) 10671 { 10672 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10673 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10674 int rc = -ENODEV; 10675 10676 switch (phba->pci_dev_grp) { 10677 case LPFC_PCI_DEV_LP: 10678 rc = lpfc_pci_resume_one_s3(pdev); 10679 break; 10680 case LPFC_PCI_DEV_OC: 10681 rc = lpfc_pci_resume_one_s4(pdev); 10682 break; 10683 default: 10684 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10685 "1426 Invalid PCI device group: 0x%x\n", 10686 phba->pci_dev_grp); 10687 break; 10688 } 10689 return rc; 10690 } 10691 10692 /** 10693 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 10694 * @pdev: pointer to PCI device. 10695 * @state: the current PCI connection state. 10696 * 10697 * This routine is registered to the PCI subsystem for error handling. This 10698 * function is called by the PCI subsystem after a PCI bus error affecting 10699 * this device has been detected. When this routine is invoked, it dispatches 10700 * the action to the proper SLI-3 or SLI-4 device error detected handling 10701 * routine, which will perform the proper error detected operation. 10702 * 10703 * Return codes 10704 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10705 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10706 **/ 10707 static pci_ers_result_t 10708 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 10709 { 10710 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10711 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10712 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 10713 10714 switch (phba->pci_dev_grp) { 10715 case LPFC_PCI_DEV_LP: 10716 rc = lpfc_io_error_detected_s3(pdev, state); 10717 break; 10718 case LPFC_PCI_DEV_OC: 10719 rc = lpfc_io_error_detected_s4(pdev, state); 10720 break; 10721 default: 10722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10723 "1427 Invalid PCI device group: 0x%x\n", 10724 phba->pci_dev_grp); 10725 break; 10726 } 10727 return rc; 10728 } 10729 10730 /** 10731 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 10732 * @pdev: pointer to PCI device. 10733 * 10734 * This routine is registered to the PCI subsystem for error handling. This 10735 * function is called after PCI bus has been reset to restart the PCI card 10736 * from scratch, as if from a cold-boot. When this routine is invoked, it 10737 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 10738 * routine, which will perform the proper device reset. 10739 * 10740 * Return codes 10741 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10742 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10743 **/ 10744 static pci_ers_result_t 10745 lpfc_io_slot_reset(struct pci_dev *pdev) 10746 { 10747 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10748 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10749 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 10750 10751 switch (phba->pci_dev_grp) { 10752 case LPFC_PCI_DEV_LP: 10753 rc = lpfc_io_slot_reset_s3(pdev); 10754 break; 10755 case LPFC_PCI_DEV_OC: 10756 rc = lpfc_io_slot_reset_s4(pdev); 10757 break; 10758 default: 10759 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10760 "1428 Invalid PCI device group: 0x%x\n", 10761 phba->pci_dev_grp); 10762 break; 10763 } 10764 return rc; 10765 } 10766 10767 /** 10768 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 10769 * @pdev: pointer to PCI device 10770 * 10771 * This routine is registered to the PCI subsystem for error handling. It 10772 * is called when kernel error recovery tells the lpfc driver that it is 10773 * OK to resume normal PCI operation after PCI bus error recovery. When 10774 * this routine is invoked, it dispatches the action to the proper SLI-3 10775 * or SLI-4 device io_resume routine, which will resume the device operation. 10776 **/ 10777 static void 10778 lpfc_io_resume(struct pci_dev *pdev) 10779 { 10780 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10781 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10782 10783 switch (phba->pci_dev_grp) { 10784 case LPFC_PCI_DEV_LP: 10785 lpfc_io_resume_s3(pdev); 10786 break; 10787 case LPFC_PCI_DEV_OC: 10788 lpfc_io_resume_s4(pdev); 10789 break; 10790 default: 10791 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10792 "1429 Invalid PCI device group: 0x%x\n", 10793 phba->pci_dev_grp); 10794 break; 10795 } 10796 return; 10797 } 10798 10799 static struct pci_device_id lpfc_id_table[] = { 10800 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 10801 PCI_ANY_ID, PCI_ANY_ID, }, 10802 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 10803 PCI_ANY_ID, PCI_ANY_ID, }, 10804 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 10805 PCI_ANY_ID, PCI_ANY_ID, }, 10806 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 10807 PCI_ANY_ID, PCI_ANY_ID, }, 10808 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 10809 PCI_ANY_ID, PCI_ANY_ID, }, 10810 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 10811 PCI_ANY_ID, PCI_ANY_ID, }, 10812 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 10813 PCI_ANY_ID, PCI_ANY_ID, }, 10814 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 10815 PCI_ANY_ID, PCI_ANY_ID, }, 10816 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 10817 PCI_ANY_ID, PCI_ANY_ID, }, 10818 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 10819 PCI_ANY_ID, PCI_ANY_ID, }, 10820 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 10821 PCI_ANY_ID, PCI_ANY_ID, }, 10822 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 10823 PCI_ANY_ID, PCI_ANY_ID, }, 10824 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 10825 PCI_ANY_ID, PCI_ANY_ID, }, 10826 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 10827 PCI_ANY_ID, PCI_ANY_ID, }, 10828 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 10829 PCI_ANY_ID, PCI_ANY_ID, }, 10830 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 10831 PCI_ANY_ID, PCI_ANY_ID, }, 10832 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 10833 PCI_ANY_ID, PCI_ANY_ID, }, 10834 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 10835 PCI_ANY_ID, PCI_ANY_ID, }, 10836 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 10837 PCI_ANY_ID, PCI_ANY_ID, }, 10838 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 10839 PCI_ANY_ID, PCI_ANY_ID, }, 10840 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 10841 PCI_ANY_ID, PCI_ANY_ID, }, 10842 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 10843 PCI_ANY_ID, PCI_ANY_ID, }, 10844 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 10845 PCI_ANY_ID, PCI_ANY_ID, }, 10846 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 10847 PCI_ANY_ID, PCI_ANY_ID, }, 10848 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 10849 PCI_ANY_ID, PCI_ANY_ID, }, 10850 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 10851 PCI_ANY_ID, PCI_ANY_ID, }, 10852 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 10853 PCI_ANY_ID, PCI_ANY_ID, }, 10854 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 10855 PCI_ANY_ID, PCI_ANY_ID, }, 10856 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 10857 PCI_ANY_ID, PCI_ANY_ID, }, 10858 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 10859 PCI_ANY_ID, PCI_ANY_ID, }, 10860 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 10861 PCI_ANY_ID, PCI_ANY_ID, }, 10862 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 10863 PCI_ANY_ID, PCI_ANY_ID, }, 10864 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 10865 PCI_ANY_ID, PCI_ANY_ID, }, 10866 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 10867 PCI_ANY_ID, PCI_ANY_ID, }, 10868 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 10869 PCI_ANY_ID, PCI_ANY_ID, }, 10870 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 10871 PCI_ANY_ID, PCI_ANY_ID, }, 10872 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 10873 PCI_ANY_ID, PCI_ANY_ID, }, 10874 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 10875 PCI_ANY_ID, PCI_ANY_ID, }, 10876 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 10877 PCI_ANY_ID, PCI_ANY_ID, }, 10878 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 10879 PCI_ANY_ID, PCI_ANY_ID, }, 10880 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 10881 PCI_ANY_ID, PCI_ANY_ID, }, 10882 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, 10883 PCI_ANY_ID, PCI_ANY_ID, }, 10884 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, 10885 PCI_ANY_ID, PCI_ANY_ID, }, 10886 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF, 10887 PCI_ANY_ID, PCI_ANY_ID, }, 10888 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF, 10889 PCI_ANY_ID, PCI_ANY_ID, }, 10890 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK, 10891 PCI_ANY_ID, PCI_ANY_ID, }, 10892 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF, 10893 PCI_ANY_ID, PCI_ANY_ID, }, 10894 { 0 } 10895 }; 10896 10897 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 10898 10899 static const struct pci_error_handlers lpfc_err_handler = { 10900 .error_detected = lpfc_io_error_detected, 10901 .slot_reset = lpfc_io_slot_reset, 10902 .resume = lpfc_io_resume, 10903 }; 10904 10905 static struct pci_driver lpfc_driver = { 10906 .name = LPFC_DRIVER_NAME, 10907 .id_table = lpfc_id_table, 10908 .probe = lpfc_pci_probe_one, 10909 .remove = lpfc_pci_remove_one, 10910 .suspend = lpfc_pci_suspend_one, 10911 .resume = lpfc_pci_resume_one, 10912 .err_handler = &lpfc_err_handler, 10913 }; 10914 10915 static const struct file_operations lpfc_mgmt_fop = { 10916 .owner = THIS_MODULE, 10917 }; 10918 10919 static struct miscdevice lpfc_mgmt_dev = { 10920 .minor = MISC_DYNAMIC_MINOR, 10921 .name = "lpfcmgmt", 10922 .fops = &lpfc_mgmt_fop, 10923 }; 10924 10925 /** 10926 * lpfc_init - lpfc module initialization routine 10927 * 10928 * This routine is to be invoked when the lpfc module is loaded into the 10929 * kernel. The special kernel macro module_init() is used to indicate the 10930 * role of this routine to the kernel as lpfc module entry point. 10931 * 10932 * Return codes 10933 * 0 - successful 10934 * -ENOMEM - FC attach transport failed 10935 * all others - failed 10936 */ 10937 static int __init 10938 lpfc_init(void) 10939 { 10940 int cpu; 10941 int error = 0; 10942 10943 printk(LPFC_MODULE_DESC "\n"); 10944 printk(LPFC_COPYRIGHT "\n"); 10945 10946 error = misc_register(&lpfc_mgmt_dev); 10947 if (error) 10948 printk(KERN_ERR "Could not register lpfcmgmt device, " 10949 "misc_register returned with status %d", error); 10950 10951 if (lpfc_enable_npiv) { 10952 lpfc_transport_functions.vport_create = lpfc_vport_create; 10953 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 10954 } 10955 lpfc_transport_template = 10956 fc_attach_transport(&lpfc_transport_functions); 10957 if (lpfc_transport_template == NULL) 10958 return -ENOMEM; 10959 if (lpfc_enable_npiv) { 10960 lpfc_vport_transport_template = 10961 fc_attach_transport(&lpfc_vport_transport_functions); 10962 if (lpfc_vport_transport_template == NULL) { 10963 fc_release_transport(lpfc_transport_template); 10964 return -ENOMEM; 10965 } 10966 } 10967 10968 /* Initialize in case vector mapping is needed */ 10969 lpfc_used_cpu = NULL; 10970 lpfc_present_cpu = 0; 10971 for_each_present_cpu(cpu) 10972 lpfc_present_cpu++; 10973 10974 error = pci_register_driver(&lpfc_driver); 10975 if (error) { 10976 fc_release_transport(lpfc_transport_template); 10977 if (lpfc_enable_npiv) 10978 fc_release_transport(lpfc_vport_transport_template); 10979 } 10980 10981 return error; 10982 } 10983 10984 /** 10985 * lpfc_exit - lpfc module removal routine 10986 * 10987 * This routine is invoked when the lpfc module is removed from the kernel. 10988 * The special kernel macro module_exit() is used to indicate the role of 10989 * this routine to the kernel as lpfc module exit point. 10990 */ 10991 static void __exit 10992 lpfc_exit(void) 10993 { 10994 misc_deregister(&lpfc_mgmt_dev); 10995 pci_unregister_driver(&lpfc_driver); 10996 fc_release_transport(lpfc_transport_template); 10997 if (lpfc_enable_npiv) 10998 fc_release_transport(lpfc_vport_transport_template); 10999 if (_dump_buf_data) { 11000 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 11001 "_dump_buf_data at 0x%p\n", 11002 (1L << _dump_buf_data_order), _dump_buf_data); 11003 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 11004 } 11005 11006 if (_dump_buf_dif) { 11007 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 11008 "_dump_buf_dif at 0x%p\n", 11009 (1L << _dump_buf_dif_order), _dump_buf_dif); 11010 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 11011 } 11012 kfree(lpfc_used_cpu); 11013 } 11014 11015 module_init(lpfc_init); 11016 module_exit(lpfc_exit); 11017 MODULE_LICENSE("GPL"); 11018 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 11019 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 11020 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 11021