1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2012 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 10 * modify it under the terms of version 2 of the GNU General * 11 * Public License as published by the Free Software Foundation. * 12 * This program is distributed in the hope that it will be useful. * 13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17 * TO BE LEGALLY INVALID. See the GNU General Public License for * 18 * more details, a copy of which can be found in the file COPYING * 19 * included with this package. * 20 *******************************************************************/ 21 22 #include <linux/blkdev.h> 23 #include <linux/delay.h> 24 #include <linux/dma-mapping.h> 25 #include <linux/idr.h> 26 #include <linux/interrupt.h> 27 #include <linux/module.h> 28 #include <linux/kthread.h> 29 #include <linux/pci.h> 30 #include <linux/spinlock.h> 31 #include <linux/ctype.h> 32 #include <linux/aer.h> 33 #include <linux/slab.h> 34 #include <linux/firmware.h> 35 #include <linux/miscdevice.h> 36 #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[LPFC_MAX_CPU]; 64 65 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 66 static int lpfc_post_rcv_buf(struct lpfc_hba *); 67 static int lpfc_sli4_queue_verify(struct lpfc_hba *); 68 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 69 static int lpfc_setup_endian_order(struct lpfc_hba *); 70 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 71 static void lpfc_free_els_sgl_list(struct lpfc_hba *); 72 static void lpfc_init_sgl_list(struct lpfc_hba *); 73 static int lpfc_init_active_sgl_array(struct lpfc_hba *); 74 static void lpfc_free_active_sgl(struct lpfc_hba *); 75 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 76 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 77 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 78 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 79 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 80 static void lpfc_sli4_disable_intr(struct lpfc_hba *); 81 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t); 82 83 static struct scsi_transport_template *lpfc_transport_template = NULL; 84 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 85 static DEFINE_IDR(lpfc_hba_index); 86 87 /** 88 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 89 * @phba: pointer to lpfc hba data structure. 90 * 91 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 92 * mailbox command. It retrieves the revision information from the HBA and 93 * collects the Vital Product Data (VPD) about the HBA for preparing the 94 * configuration of the HBA. 95 * 96 * Return codes: 97 * 0 - success. 98 * -ERESTART - requests the SLI layer to reset the HBA and try again. 99 * Any other value - indicates an error. 100 **/ 101 int 102 lpfc_config_port_prep(struct lpfc_hba *phba) 103 { 104 lpfc_vpd_t *vp = &phba->vpd; 105 int i = 0, rc; 106 LPFC_MBOXQ_t *pmb; 107 MAILBOX_t *mb; 108 char *lpfc_vpd_data = NULL; 109 uint16_t offset = 0; 110 static char licensed[56] = 111 "key unlock for use with gnu public licensed code only\0"; 112 static int init_key = 1; 113 114 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 115 if (!pmb) { 116 phba->link_state = LPFC_HBA_ERROR; 117 return -ENOMEM; 118 } 119 120 mb = &pmb->u.mb; 121 phba->link_state = LPFC_INIT_MBX_CMDS; 122 123 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 124 if (init_key) { 125 uint32_t *ptext = (uint32_t *) licensed; 126 127 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 128 *ptext = cpu_to_be32(*ptext); 129 init_key = 0; 130 } 131 132 lpfc_read_nv(phba, pmb); 133 memset((char*)mb->un.varRDnvp.rsvd3, 0, 134 sizeof (mb->un.varRDnvp.rsvd3)); 135 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 136 sizeof (licensed)); 137 138 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 139 140 if (rc != MBX_SUCCESS) { 141 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 142 "0324 Config Port initialization " 143 "error, mbxCmd x%x READ_NVPARM, " 144 "mbxStatus x%x\n", 145 mb->mbxCommand, mb->mbxStatus); 146 mempool_free(pmb, phba->mbox_mem_pool); 147 return -ERESTART; 148 } 149 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 150 sizeof(phba->wwnn)); 151 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 152 sizeof(phba->wwpn)); 153 } 154 155 phba->sli3_options = 0x0; 156 157 /* Setup and issue mailbox READ REV command */ 158 lpfc_read_rev(phba, pmb); 159 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 160 if (rc != MBX_SUCCESS) { 161 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 162 "0439 Adapter failed to init, mbxCmd x%x " 163 "READ_REV, mbxStatus x%x\n", 164 mb->mbxCommand, mb->mbxStatus); 165 mempool_free( pmb, phba->mbox_mem_pool); 166 return -ERESTART; 167 } 168 169 170 /* 171 * The value of rr must be 1 since the driver set the cv field to 1. 172 * This setting requires the FW to set all revision fields. 173 */ 174 if (mb->un.varRdRev.rr == 0) { 175 vp->rev.rBit = 0; 176 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 177 "0440 Adapter failed to init, READ_REV has " 178 "missing revision information.\n"); 179 mempool_free(pmb, phba->mbox_mem_pool); 180 return -ERESTART; 181 } 182 183 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 184 mempool_free(pmb, phba->mbox_mem_pool); 185 return -EINVAL; 186 } 187 188 /* Save information as VPD data */ 189 vp->rev.rBit = 1; 190 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 191 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 192 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 193 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 194 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 195 vp->rev.biuRev = mb->un.varRdRev.biuRev; 196 vp->rev.smRev = mb->un.varRdRev.smRev; 197 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 198 vp->rev.endecRev = mb->un.varRdRev.endecRev; 199 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 200 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 201 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 202 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 203 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 204 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 205 206 /* If the sli feature level is less then 9, we must 207 * tear down all RPIs and VPIs on link down if NPIV 208 * is enabled. 209 */ 210 if (vp->rev.feaLevelHigh < 9) 211 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 212 213 if (lpfc_is_LC_HBA(phba->pcidev->device)) 214 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 215 sizeof (phba->RandomData)); 216 217 /* Get adapter VPD information */ 218 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 219 if (!lpfc_vpd_data) 220 goto out_free_mbox; 221 do { 222 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 223 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 224 225 if (rc != MBX_SUCCESS) { 226 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 227 "0441 VPD not present on adapter, " 228 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 229 mb->mbxCommand, mb->mbxStatus); 230 mb->un.varDmp.word_cnt = 0; 231 } 232 /* dump mem may return a zero when finished or we got a 233 * mailbox error, either way we are done. 234 */ 235 if (mb->un.varDmp.word_cnt == 0) 236 break; 237 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 238 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 239 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 240 lpfc_vpd_data + offset, 241 mb->un.varDmp.word_cnt); 242 offset += mb->un.varDmp.word_cnt; 243 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 244 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 245 246 kfree(lpfc_vpd_data); 247 out_free_mbox: 248 mempool_free(pmb, phba->mbox_mem_pool); 249 return 0; 250 } 251 252 /** 253 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 254 * @phba: pointer to lpfc hba data structure. 255 * @pmboxq: pointer to the driver internal queue element for mailbox command. 256 * 257 * This is the completion handler for driver's configuring asynchronous event 258 * mailbox command to the device. If the mailbox command returns successfully, 259 * it will set internal async event support flag to 1; otherwise, it will 260 * set internal async event support flag to 0. 261 **/ 262 static void 263 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 264 { 265 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 266 phba->temp_sensor_support = 1; 267 else 268 phba->temp_sensor_support = 0; 269 mempool_free(pmboxq, phba->mbox_mem_pool); 270 return; 271 } 272 273 /** 274 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 275 * @phba: pointer to lpfc hba data structure. 276 * @pmboxq: pointer to the driver internal queue element for mailbox command. 277 * 278 * This is the completion handler for dump mailbox command for getting 279 * wake up parameters. When this command complete, the response contain 280 * Option rom version of the HBA. This function translate the version number 281 * into a human readable string and store it in OptionROMVersion. 282 **/ 283 static void 284 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 285 { 286 struct prog_id *prg; 287 uint32_t prog_id_word; 288 char dist = ' '; 289 /* character array used for decoding dist type. */ 290 char dist_char[] = "nabx"; 291 292 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 293 mempool_free(pmboxq, phba->mbox_mem_pool); 294 return; 295 } 296 297 prg = (struct prog_id *) &prog_id_word; 298 299 /* word 7 contain option rom version */ 300 prog_id_word = pmboxq->u.mb.un.varWords[7]; 301 302 /* Decode the Option rom version word to a readable string */ 303 if (prg->dist < 4) 304 dist = dist_char[prg->dist]; 305 306 if ((prg->dist == 3) && (prg->num == 0)) 307 sprintf(phba->OptionROMVersion, "%d.%d%d", 308 prg->ver, prg->rev, prg->lev); 309 else 310 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 311 prg->ver, prg->rev, prg->lev, 312 dist, prg->num); 313 mempool_free(pmboxq, phba->mbox_mem_pool); 314 return; 315 } 316 317 /** 318 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 319 * cfg_soft_wwnn, cfg_soft_wwpn 320 * @vport: pointer to lpfc vport data structure. 321 * 322 * 323 * Return codes 324 * None. 325 **/ 326 void 327 lpfc_update_vport_wwn(struct lpfc_vport *vport) 328 { 329 /* If the soft name exists then update it using the service params */ 330 if (vport->phba->cfg_soft_wwnn) 331 u64_to_wwn(vport->phba->cfg_soft_wwnn, 332 vport->fc_sparam.nodeName.u.wwn); 333 if (vport->phba->cfg_soft_wwpn) 334 u64_to_wwn(vport->phba->cfg_soft_wwpn, 335 vport->fc_sparam.portName.u.wwn); 336 337 /* 338 * If the name is empty or there exists a soft name 339 * then copy the service params name, otherwise use the fc name 340 */ 341 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 342 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 343 sizeof(struct lpfc_name)); 344 else 345 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 346 sizeof(struct lpfc_name)); 347 348 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn) 349 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 350 sizeof(struct lpfc_name)); 351 else 352 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 353 sizeof(struct lpfc_name)); 354 } 355 356 /** 357 * lpfc_config_port_post - Perform lpfc initialization after config port 358 * @phba: pointer to lpfc hba data structure. 359 * 360 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 361 * command call. It performs all internal resource and state setups on the 362 * port: post IOCB buffers, enable appropriate host interrupt attentions, 363 * ELS ring timers, etc. 364 * 365 * Return codes 366 * 0 - success. 367 * Any other value - error. 368 **/ 369 int 370 lpfc_config_port_post(struct lpfc_hba *phba) 371 { 372 struct lpfc_vport *vport = phba->pport; 373 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 374 LPFC_MBOXQ_t *pmb; 375 MAILBOX_t *mb; 376 struct lpfc_dmabuf *mp; 377 struct lpfc_sli *psli = &phba->sli; 378 uint32_t status, timeout; 379 int i, j; 380 int rc; 381 382 spin_lock_irq(&phba->hbalock); 383 /* 384 * If the Config port completed correctly the HBA is not 385 * over heated any more. 386 */ 387 if (phba->over_temp_state == HBA_OVER_TEMP) 388 phba->over_temp_state = HBA_NORMAL_TEMP; 389 spin_unlock_irq(&phba->hbalock); 390 391 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 392 if (!pmb) { 393 phba->link_state = LPFC_HBA_ERROR; 394 return -ENOMEM; 395 } 396 mb = &pmb->u.mb; 397 398 /* Get login parameters for NID. */ 399 rc = lpfc_read_sparam(phba, pmb, 0); 400 if (rc) { 401 mempool_free(pmb, phba->mbox_mem_pool); 402 return -ENOMEM; 403 } 404 405 pmb->vport = vport; 406 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 407 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 408 "0448 Adapter failed init, mbxCmd x%x " 409 "READ_SPARM mbxStatus x%x\n", 410 mb->mbxCommand, mb->mbxStatus); 411 phba->link_state = LPFC_HBA_ERROR; 412 mp = (struct lpfc_dmabuf *) pmb->context1; 413 mempool_free(pmb, phba->mbox_mem_pool); 414 lpfc_mbuf_free(phba, mp->virt, mp->phys); 415 kfree(mp); 416 return -EIO; 417 } 418 419 mp = (struct lpfc_dmabuf *) pmb->context1; 420 421 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 422 lpfc_mbuf_free(phba, mp->virt, mp->phys); 423 kfree(mp); 424 pmb->context1 = NULL; 425 lpfc_update_vport_wwn(vport); 426 427 /* Update the fc_host data structures with new wwn. */ 428 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 429 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 430 fc_host_max_npiv_vports(shost) = phba->max_vpi; 431 432 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 433 /* This should be consolidated into parse_vpd ? - mr */ 434 if (phba->SerialNumber[0] == 0) { 435 uint8_t *outptr; 436 437 outptr = &vport->fc_nodename.u.s.IEEE[0]; 438 for (i = 0; i < 12; i++) { 439 status = *outptr++; 440 j = ((status & 0xf0) >> 4); 441 if (j <= 9) 442 phba->SerialNumber[i] = 443 (char)((uint8_t) 0x30 + (uint8_t) j); 444 else 445 phba->SerialNumber[i] = 446 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 447 i++; 448 j = (status & 0xf); 449 if (j <= 9) 450 phba->SerialNumber[i] = 451 (char)((uint8_t) 0x30 + (uint8_t) j); 452 else 453 phba->SerialNumber[i] = 454 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 455 } 456 } 457 458 lpfc_read_config(phba, pmb); 459 pmb->vport = vport; 460 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 462 "0453 Adapter failed to init, mbxCmd x%x " 463 "READ_CONFIG, mbxStatus x%x\n", 464 mb->mbxCommand, mb->mbxStatus); 465 phba->link_state = LPFC_HBA_ERROR; 466 mempool_free( pmb, phba->mbox_mem_pool); 467 return -EIO; 468 } 469 470 /* Check if the port is disabled */ 471 lpfc_sli_read_link_ste(phba); 472 473 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 474 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 475 phba->cfg_hba_queue_depth = 476 (mb->un.varRdConfig.max_xri + 1) - 477 lpfc_sli4_get_els_iocb_cnt(phba); 478 479 phba->lmt = mb->un.varRdConfig.lmt; 480 481 /* Get the default values for Model Name and Description */ 482 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 483 484 phba->link_state = LPFC_LINK_DOWN; 485 486 /* Only process IOCBs on ELS ring till hba_state is READY */ 487 if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr) 488 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 489 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr) 490 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 491 if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr) 492 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 493 494 /* Post receive buffers for desired rings */ 495 if (phba->sli_rev != 3) 496 lpfc_post_rcv_buf(phba); 497 498 /* 499 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 500 */ 501 if (phba->intr_type == MSIX) { 502 rc = lpfc_config_msi(phba, pmb); 503 if (rc) { 504 mempool_free(pmb, phba->mbox_mem_pool); 505 return -EIO; 506 } 507 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 508 if (rc != MBX_SUCCESS) { 509 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 510 "0352 Config MSI mailbox command " 511 "failed, mbxCmd x%x, mbxStatus x%x\n", 512 pmb->u.mb.mbxCommand, 513 pmb->u.mb.mbxStatus); 514 mempool_free(pmb, phba->mbox_mem_pool); 515 return -EIO; 516 } 517 } 518 519 spin_lock_irq(&phba->hbalock); 520 /* Initialize ERATT handling flag */ 521 phba->hba_flag &= ~HBA_ERATT_HANDLED; 522 523 /* Enable appropriate host interrupts */ 524 if (lpfc_readl(phba->HCregaddr, &status)) { 525 spin_unlock_irq(&phba->hbalock); 526 return -EIO; 527 } 528 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 529 if (psli->num_rings > 0) 530 status |= HC_R0INT_ENA; 531 if (psli->num_rings > 1) 532 status |= HC_R1INT_ENA; 533 if (psli->num_rings > 2) 534 status |= HC_R2INT_ENA; 535 if (psli->num_rings > 3) 536 status |= HC_R3INT_ENA; 537 538 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 539 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 540 status &= ~(HC_R0INT_ENA); 541 542 writel(status, phba->HCregaddr); 543 readl(phba->HCregaddr); /* flush */ 544 spin_unlock_irq(&phba->hbalock); 545 546 /* Set up ring-0 (ELS) timer */ 547 timeout = phba->fc_ratov * 2; 548 mod_timer(&vport->els_tmofunc, 549 jiffies + msecs_to_jiffies(1000 * timeout)); 550 /* Set up heart beat (HB) timer */ 551 mod_timer(&phba->hb_tmofunc, 552 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 553 phba->hb_outstanding = 0; 554 phba->last_completion_time = jiffies; 555 /* Set up error attention (ERATT) polling timer */ 556 mod_timer(&phba->eratt_poll, 557 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL)); 558 559 if (phba->hba_flag & LINK_DISABLED) { 560 lpfc_printf_log(phba, 561 KERN_ERR, LOG_INIT, 562 "2598 Adapter Link is disabled.\n"); 563 lpfc_down_link(phba, pmb); 564 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 565 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 566 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 567 lpfc_printf_log(phba, 568 KERN_ERR, LOG_INIT, 569 "2599 Adapter failed to issue DOWN_LINK" 570 " mbox command rc 0x%x\n", rc); 571 572 mempool_free(pmb, phba->mbox_mem_pool); 573 return -EIO; 574 } 575 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 576 mempool_free(pmb, phba->mbox_mem_pool); 577 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 578 if (rc) 579 return rc; 580 } 581 /* MBOX buffer will be freed in mbox compl */ 582 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 583 if (!pmb) { 584 phba->link_state = LPFC_HBA_ERROR; 585 return -ENOMEM; 586 } 587 588 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 589 pmb->mbox_cmpl = lpfc_config_async_cmpl; 590 pmb->vport = phba->pport; 591 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 592 593 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 594 lpfc_printf_log(phba, 595 KERN_ERR, 596 LOG_INIT, 597 "0456 Adapter failed to issue " 598 "ASYNCEVT_ENABLE mbox status x%x\n", 599 rc); 600 mempool_free(pmb, phba->mbox_mem_pool); 601 } 602 603 /* Get Option rom version */ 604 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 605 if (!pmb) { 606 phba->link_state = LPFC_HBA_ERROR; 607 return -ENOMEM; 608 } 609 610 lpfc_dump_wakeup_param(phba, pmb); 611 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 612 pmb->vport = phba->pport; 613 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 614 615 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 616 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 617 "to get Option ROM version status x%x\n", rc); 618 mempool_free(pmb, phba->mbox_mem_pool); 619 } 620 621 return 0; 622 } 623 624 /** 625 * lpfc_hba_init_link - Initialize the FC link 626 * @phba: pointer to lpfc hba data structure. 627 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 628 * 629 * This routine will issue the INIT_LINK mailbox command call. 630 * It is available to other drivers through the lpfc_hba data 631 * structure for use as a delayed link up mechanism with the 632 * module parameter lpfc_suppress_link_up. 633 * 634 * Return code 635 * 0 - success 636 * Any other value - error 637 **/ 638 int 639 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 640 { 641 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); 642 } 643 644 /** 645 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology 646 * @phba: pointer to lpfc hba data structure. 647 * @fc_topology: desired fc topology. 648 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 649 * 650 * This routine will issue the INIT_LINK mailbox command call. 651 * It is available to other drivers through the lpfc_hba data 652 * structure for use as a delayed link up mechanism with the 653 * module parameter lpfc_suppress_link_up. 654 * 655 * Return code 656 * 0 - success 657 * Any other value - error 658 **/ 659 int 660 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, 661 uint32_t flag) 662 { 663 struct lpfc_vport *vport = phba->pport; 664 LPFC_MBOXQ_t *pmb; 665 MAILBOX_t *mb; 666 int rc; 667 668 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 669 if (!pmb) { 670 phba->link_state = LPFC_HBA_ERROR; 671 return -ENOMEM; 672 } 673 mb = &pmb->u.mb; 674 pmb->vport = vport; 675 676 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || 677 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && 678 !(phba->lmt & LMT_1Gb)) || 679 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && 680 !(phba->lmt & LMT_2Gb)) || 681 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && 682 !(phba->lmt & LMT_4Gb)) || 683 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && 684 !(phba->lmt & LMT_8Gb)) || 685 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && 686 !(phba->lmt & LMT_10Gb)) || 687 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && 688 !(phba->lmt & LMT_16Gb))) { 689 /* Reset link speed to auto */ 690 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 691 "1302 Invalid speed for this board:%d " 692 "Reset link speed to auto.\n", 693 phba->cfg_link_speed); 694 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 695 } 696 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); 697 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 698 if (phba->sli_rev < LPFC_SLI_REV4) 699 lpfc_set_loopback_flag(phba); 700 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 701 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 702 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 703 "0498 Adapter failed to init, mbxCmd x%x " 704 "INIT_LINK, mbxStatus x%x\n", 705 mb->mbxCommand, mb->mbxStatus); 706 if (phba->sli_rev <= LPFC_SLI_REV3) { 707 /* Clear all interrupt enable conditions */ 708 writel(0, phba->HCregaddr); 709 readl(phba->HCregaddr); /* flush */ 710 /* Clear all pending interrupts */ 711 writel(0xffffffff, phba->HAregaddr); 712 readl(phba->HAregaddr); /* flush */ 713 } 714 phba->link_state = LPFC_HBA_ERROR; 715 if (rc != MBX_BUSY || flag == MBX_POLL) 716 mempool_free(pmb, phba->mbox_mem_pool); 717 return -EIO; 718 } 719 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 720 if (flag == MBX_POLL) 721 mempool_free(pmb, phba->mbox_mem_pool); 722 723 return 0; 724 } 725 726 /** 727 * lpfc_hba_down_link - this routine downs the FC link 728 * @phba: pointer to lpfc hba data structure. 729 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 730 * 731 * This routine will issue the DOWN_LINK mailbox command call. 732 * It is available to other drivers through the lpfc_hba data 733 * structure for use to stop the link. 734 * 735 * Return code 736 * 0 - success 737 * Any other value - error 738 **/ 739 int 740 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 741 { 742 LPFC_MBOXQ_t *pmb; 743 int rc; 744 745 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 746 if (!pmb) { 747 phba->link_state = LPFC_HBA_ERROR; 748 return -ENOMEM; 749 } 750 751 lpfc_printf_log(phba, 752 KERN_ERR, LOG_INIT, 753 "0491 Adapter Link is disabled.\n"); 754 lpfc_down_link(phba, pmb); 755 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 756 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 757 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 758 lpfc_printf_log(phba, 759 KERN_ERR, LOG_INIT, 760 "2522 Adapter failed to issue DOWN_LINK" 761 " mbox command rc 0x%x\n", rc); 762 763 mempool_free(pmb, phba->mbox_mem_pool); 764 return -EIO; 765 } 766 if (flag == MBX_POLL) 767 mempool_free(pmb, phba->mbox_mem_pool); 768 769 return 0; 770 } 771 772 /** 773 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 774 * @phba: pointer to lpfc HBA data structure. 775 * 776 * This routine will do LPFC uninitialization before the HBA is reset when 777 * bringing down the SLI Layer. 778 * 779 * Return codes 780 * 0 - success. 781 * Any other value - error. 782 **/ 783 int 784 lpfc_hba_down_prep(struct lpfc_hba *phba) 785 { 786 struct lpfc_vport **vports; 787 int i; 788 789 if (phba->sli_rev <= LPFC_SLI_REV3) { 790 /* Disable interrupts */ 791 writel(0, phba->HCregaddr); 792 readl(phba->HCregaddr); /* flush */ 793 } 794 795 if (phba->pport->load_flag & FC_UNLOADING) 796 lpfc_cleanup_discovery_resources(phba->pport); 797 else { 798 vports = lpfc_create_vport_work_array(phba); 799 if (vports != NULL) 800 for (i = 0; i <= phba->max_vports && 801 vports[i] != NULL; i++) 802 lpfc_cleanup_discovery_resources(vports[i]); 803 lpfc_destroy_vport_work_array(phba, vports); 804 } 805 return 0; 806 } 807 808 /** 809 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 810 * @phba: pointer to lpfc HBA data structure. 811 * 812 * This routine will do uninitialization after the HBA is reset when bring 813 * down the SLI Layer. 814 * 815 * Return codes 816 * 0 - success. 817 * Any other value - error. 818 **/ 819 static int 820 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 821 { 822 struct lpfc_sli *psli = &phba->sli; 823 struct lpfc_sli_ring *pring; 824 struct lpfc_dmabuf *mp, *next_mp; 825 LIST_HEAD(completions); 826 int i; 827 828 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 829 lpfc_sli_hbqbuf_free_all(phba); 830 else { 831 /* Cleanup preposted buffers on the ELS ring */ 832 pring = &psli->ring[LPFC_ELS_RING]; 833 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 834 list_del(&mp->list); 835 pring->postbufq_cnt--; 836 lpfc_mbuf_free(phba, mp->virt, mp->phys); 837 kfree(mp); 838 } 839 } 840 841 spin_lock_irq(&phba->hbalock); 842 for (i = 0; i < psli->num_rings; i++) { 843 pring = &psli->ring[i]; 844 845 /* At this point in time the HBA is either reset or DOA. Either 846 * way, nothing should be on txcmplq as it will NEVER complete. 847 */ 848 list_splice_init(&pring->txcmplq, &completions); 849 spin_unlock_irq(&phba->hbalock); 850 851 /* Cancel all the IOCBs from the completions list */ 852 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 853 IOERR_SLI_ABORTED); 854 855 lpfc_sli_abort_iocb_ring(phba, pring); 856 spin_lock_irq(&phba->hbalock); 857 } 858 spin_unlock_irq(&phba->hbalock); 859 860 return 0; 861 } 862 863 /** 864 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 865 * @phba: pointer to lpfc HBA data structure. 866 * 867 * This routine will do uninitialization after the HBA is reset when bring 868 * down the SLI Layer. 869 * 870 * Return codes 871 * 0 - success. 872 * Any other value - error. 873 **/ 874 static int 875 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 876 { 877 struct lpfc_scsi_buf *psb, *psb_next; 878 LIST_HEAD(aborts); 879 int ret; 880 unsigned long iflag = 0; 881 struct lpfc_sglq *sglq_entry = NULL; 882 883 ret = lpfc_hba_down_post_s3(phba); 884 if (ret) 885 return ret; 886 /* At this point in time the HBA is either reset or DOA. Either 887 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 888 * on the lpfc_sgl_list so that it can either be freed if the 889 * driver is unloading or reposted if the driver is restarting 890 * the port. 891 */ 892 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 893 /* scsl_buf_list */ 894 /* abts_sgl_list_lock required because worker thread uses this 895 * list. 896 */ 897 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 898 list_for_each_entry(sglq_entry, 899 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 900 sglq_entry->state = SGL_FREED; 901 902 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 903 &phba->sli4_hba.lpfc_sgl_list); 904 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 905 /* abts_scsi_buf_list_lock required because worker thread uses this 906 * list. 907 */ 908 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 909 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 910 &aborts); 911 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 912 spin_unlock_irq(&phba->hbalock); 913 914 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 915 psb->pCmd = NULL; 916 psb->status = IOSTAT_SUCCESS; 917 } 918 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); 919 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put); 920 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); 921 return 0; 922 } 923 924 /** 925 * lpfc_hba_down_post - Wrapper func for hba down post routine 926 * @phba: pointer to lpfc HBA data structure. 927 * 928 * This routine wraps the actual SLI3 or SLI4 routine for performing 929 * uninitialization after the HBA is reset when bring down the SLI Layer. 930 * 931 * Return codes 932 * 0 - success. 933 * Any other value - error. 934 **/ 935 int 936 lpfc_hba_down_post(struct lpfc_hba *phba) 937 { 938 return (*phba->lpfc_hba_down_post)(phba); 939 } 940 941 /** 942 * lpfc_hb_timeout - The HBA-timer timeout handler 943 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 944 * 945 * This is the HBA-timer timeout handler registered to the lpfc driver. When 946 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 947 * work-port-events bitmap and the worker thread is notified. This timeout 948 * event will be used by the worker thread to invoke the actual timeout 949 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 950 * be performed in the timeout handler and the HBA timeout event bit shall 951 * be cleared by the worker thread after it has taken the event bitmap out. 952 **/ 953 static void 954 lpfc_hb_timeout(unsigned long ptr) 955 { 956 struct lpfc_hba *phba; 957 uint32_t tmo_posted; 958 unsigned long iflag; 959 960 phba = (struct lpfc_hba *)ptr; 961 962 /* Check for heart beat timeout conditions */ 963 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 964 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 965 if (!tmo_posted) 966 phba->pport->work_port_events |= WORKER_HB_TMO; 967 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 968 969 /* Tell the worker thread there is work to do */ 970 if (!tmo_posted) 971 lpfc_worker_wake_up(phba); 972 return; 973 } 974 975 /** 976 * lpfc_rrq_timeout - The RRQ-timer timeout handler 977 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 978 * 979 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 980 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 981 * work-port-events bitmap and the worker thread is notified. This timeout 982 * event will be used by the worker thread to invoke the actual timeout 983 * handler routine, lpfc_rrq_handler. Any periodical operations will 984 * be performed in the timeout handler and the RRQ timeout event bit shall 985 * be cleared by the worker thread after it has taken the event bitmap out. 986 **/ 987 static void 988 lpfc_rrq_timeout(unsigned long ptr) 989 { 990 struct lpfc_hba *phba; 991 unsigned long iflag; 992 993 phba = (struct lpfc_hba *)ptr; 994 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 995 phba->hba_flag |= HBA_RRQ_ACTIVE; 996 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 997 lpfc_worker_wake_up(phba); 998 } 999 1000 /** 1001 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 1002 * @phba: pointer to lpfc hba data structure. 1003 * @pmboxq: pointer to the driver internal queue element for mailbox command. 1004 * 1005 * This is the callback function to the lpfc heart-beat mailbox command. 1006 * If configured, the lpfc driver issues the heart-beat mailbox command to 1007 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 1008 * heart-beat mailbox command is issued, the driver shall set up heart-beat 1009 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 1010 * heart-beat outstanding state. Once the mailbox command comes back and 1011 * no error conditions detected, the heart-beat mailbox command timer is 1012 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1013 * state is cleared for the next heart-beat. If the timer expired with the 1014 * heart-beat outstanding state set, the driver will put the HBA offline. 1015 **/ 1016 static void 1017 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1018 { 1019 unsigned long drvr_flag; 1020 1021 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1022 phba->hb_outstanding = 0; 1023 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1024 1025 /* Check and reset heart-beat timer is necessary */ 1026 mempool_free(pmboxq, phba->mbox_mem_pool); 1027 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1028 !(phba->link_state == LPFC_HBA_ERROR) && 1029 !(phba->pport->load_flag & FC_UNLOADING)) 1030 mod_timer(&phba->hb_tmofunc, 1031 jiffies + 1032 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1033 return; 1034 } 1035 1036 /** 1037 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1038 * @phba: pointer to lpfc hba data structure. 1039 * 1040 * This is the actual HBA-timer timeout handler to be invoked by the worker 1041 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1042 * handler performs any periodic operations needed for the device. If such 1043 * periodic event has already been attended to either in the interrupt handler 1044 * or by processing slow-ring or fast-ring events within the HBA-timer 1045 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1046 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1047 * is configured and there is no heart-beat mailbox command outstanding, a 1048 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1049 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1050 * to offline. 1051 **/ 1052 void 1053 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1054 { 1055 struct lpfc_vport **vports; 1056 LPFC_MBOXQ_t *pmboxq; 1057 struct lpfc_dmabuf *buf_ptr; 1058 int retval, i; 1059 struct lpfc_sli *psli = &phba->sli; 1060 LIST_HEAD(completions); 1061 1062 vports = lpfc_create_vport_work_array(phba); 1063 if (vports != NULL) 1064 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1065 lpfc_rcv_seq_check_edtov(vports[i]); 1066 lpfc_destroy_vport_work_array(phba, vports); 1067 1068 if ((phba->link_state == LPFC_HBA_ERROR) || 1069 (phba->pport->load_flag & FC_UNLOADING) || 1070 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1071 return; 1072 1073 spin_lock_irq(&phba->pport->work_port_lock); 1074 1075 if (time_after(phba->last_completion_time + 1076 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL), 1077 jiffies)) { 1078 spin_unlock_irq(&phba->pport->work_port_lock); 1079 if (!phba->hb_outstanding) 1080 mod_timer(&phba->hb_tmofunc, 1081 jiffies + 1082 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1083 else 1084 mod_timer(&phba->hb_tmofunc, 1085 jiffies + 1086 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1087 return; 1088 } 1089 spin_unlock_irq(&phba->pport->work_port_lock); 1090 1091 if (phba->elsbuf_cnt && 1092 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1093 spin_lock_irq(&phba->hbalock); 1094 list_splice_init(&phba->elsbuf, &completions); 1095 phba->elsbuf_cnt = 0; 1096 phba->elsbuf_prev_cnt = 0; 1097 spin_unlock_irq(&phba->hbalock); 1098 1099 while (!list_empty(&completions)) { 1100 list_remove_head(&completions, buf_ptr, 1101 struct lpfc_dmabuf, list); 1102 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1103 kfree(buf_ptr); 1104 } 1105 } 1106 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1107 1108 /* If there is no heart beat outstanding, issue a heartbeat command */ 1109 if (phba->cfg_enable_hba_heartbeat) { 1110 if (!phba->hb_outstanding) { 1111 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1112 (list_empty(&psli->mboxq))) { 1113 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1114 GFP_KERNEL); 1115 if (!pmboxq) { 1116 mod_timer(&phba->hb_tmofunc, 1117 jiffies + 1118 msecs_to_jiffies(1000 * 1119 LPFC_HB_MBOX_INTERVAL)); 1120 return; 1121 } 1122 1123 lpfc_heart_beat(phba, pmboxq); 1124 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1125 pmboxq->vport = phba->pport; 1126 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1127 MBX_NOWAIT); 1128 1129 if (retval != MBX_BUSY && 1130 retval != MBX_SUCCESS) { 1131 mempool_free(pmboxq, 1132 phba->mbox_mem_pool); 1133 mod_timer(&phba->hb_tmofunc, 1134 jiffies + 1135 msecs_to_jiffies(1000 * 1136 LPFC_HB_MBOX_INTERVAL)); 1137 return; 1138 } 1139 phba->skipped_hb = 0; 1140 phba->hb_outstanding = 1; 1141 } else if (time_before_eq(phba->last_completion_time, 1142 phba->skipped_hb)) { 1143 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1144 "2857 Last completion time not " 1145 " updated in %d ms\n", 1146 jiffies_to_msecs(jiffies 1147 - phba->last_completion_time)); 1148 } else 1149 phba->skipped_hb = jiffies; 1150 1151 mod_timer(&phba->hb_tmofunc, 1152 jiffies + 1153 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1154 return; 1155 } else { 1156 /* 1157 * If heart beat timeout called with hb_outstanding set 1158 * we need to give the hb mailbox cmd a chance to 1159 * complete or TMO. 1160 */ 1161 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1162 "0459 Adapter heartbeat still out" 1163 "standing:last compl time was %d ms.\n", 1164 jiffies_to_msecs(jiffies 1165 - phba->last_completion_time)); 1166 mod_timer(&phba->hb_tmofunc, 1167 jiffies + 1168 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1169 } 1170 } 1171 } 1172 1173 /** 1174 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1175 * @phba: pointer to lpfc hba data structure. 1176 * 1177 * This routine is called to bring the HBA offline when HBA hardware error 1178 * other than Port Error 6 has been detected. 1179 **/ 1180 static void 1181 lpfc_offline_eratt(struct lpfc_hba *phba) 1182 { 1183 struct lpfc_sli *psli = &phba->sli; 1184 1185 spin_lock_irq(&phba->hbalock); 1186 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1187 spin_unlock_irq(&phba->hbalock); 1188 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1189 1190 lpfc_offline(phba); 1191 lpfc_reset_barrier(phba); 1192 spin_lock_irq(&phba->hbalock); 1193 lpfc_sli_brdreset(phba); 1194 spin_unlock_irq(&phba->hbalock); 1195 lpfc_hba_down_post(phba); 1196 lpfc_sli_brdready(phba, HS_MBRDY); 1197 lpfc_unblock_mgmt_io(phba); 1198 phba->link_state = LPFC_HBA_ERROR; 1199 return; 1200 } 1201 1202 /** 1203 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1204 * @phba: pointer to lpfc hba data structure. 1205 * 1206 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1207 * other than Port Error 6 has been detected. 1208 **/ 1209 void 1210 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1211 { 1212 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1213 lpfc_offline(phba); 1214 lpfc_sli4_brdreset(phba); 1215 lpfc_hba_down_post(phba); 1216 lpfc_sli4_post_status_check(phba); 1217 lpfc_unblock_mgmt_io(phba); 1218 phba->link_state = LPFC_HBA_ERROR; 1219 } 1220 1221 /** 1222 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1223 * @phba: pointer to lpfc hba data structure. 1224 * 1225 * This routine is invoked to handle the deferred HBA hardware error 1226 * conditions. This type of error is indicated by HBA by setting ER1 1227 * and another ER bit in the host status register. The driver will 1228 * wait until the ER1 bit clears before handling the error condition. 1229 **/ 1230 static void 1231 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1232 { 1233 uint32_t old_host_status = phba->work_hs; 1234 struct lpfc_sli_ring *pring; 1235 struct lpfc_sli *psli = &phba->sli; 1236 1237 /* If the pci channel is offline, ignore possible errors, 1238 * since we cannot communicate with the pci card anyway. 1239 */ 1240 if (pci_channel_offline(phba->pcidev)) { 1241 spin_lock_irq(&phba->hbalock); 1242 phba->hba_flag &= ~DEFER_ERATT; 1243 spin_unlock_irq(&phba->hbalock); 1244 return; 1245 } 1246 1247 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1248 "0479 Deferred Adapter Hardware Error " 1249 "Data: x%x x%x x%x\n", 1250 phba->work_hs, 1251 phba->work_status[0], phba->work_status[1]); 1252 1253 spin_lock_irq(&phba->hbalock); 1254 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1255 spin_unlock_irq(&phba->hbalock); 1256 1257 1258 /* 1259 * Firmware stops when it triggred erratt. That could cause the I/Os 1260 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1261 * SCSI layer retry it after re-establishing link. 1262 */ 1263 pring = &psli->ring[psli->fcp_ring]; 1264 lpfc_sli_abort_iocb_ring(phba, pring); 1265 1266 /* 1267 * There was a firmware error. Take the hba offline and then 1268 * attempt to restart it. 1269 */ 1270 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 1271 lpfc_offline(phba); 1272 1273 /* Wait for the ER1 bit to clear.*/ 1274 while (phba->work_hs & HS_FFER1) { 1275 msleep(100); 1276 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1277 phba->work_hs = UNPLUG_ERR ; 1278 break; 1279 } 1280 /* If driver is unloading let the worker thread continue */ 1281 if (phba->pport->load_flag & FC_UNLOADING) { 1282 phba->work_hs = 0; 1283 break; 1284 } 1285 } 1286 1287 /* 1288 * This is to ptrotect against a race condition in which 1289 * first write to the host attention register clear the 1290 * host status register. 1291 */ 1292 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1293 phba->work_hs = old_host_status & ~HS_FFER1; 1294 1295 spin_lock_irq(&phba->hbalock); 1296 phba->hba_flag &= ~DEFER_ERATT; 1297 spin_unlock_irq(&phba->hbalock); 1298 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1299 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1300 } 1301 1302 static void 1303 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1304 { 1305 struct lpfc_board_event_header board_event; 1306 struct Scsi_Host *shost; 1307 1308 board_event.event_type = FC_REG_BOARD_EVENT; 1309 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1310 shost = lpfc_shost_from_vport(phba->pport); 1311 fc_host_post_vendor_event(shost, fc_get_event_number(), 1312 sizeof(board_event), 1313 (char *) &board_event, 1314 LPFC_NL_VENDOR_ID); 1315 } 1316 1317 /** 1318 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1319 * @phba: pointer to lpfc hba data structure. 1320 * 1321 * This routine is invoked to handle the following HBA hardware error 1322 * conditions: 1323 * 1 - HBA error attention interrupt 1324 * 2 - DMA ring index out of range 1325 * 3 - Mailbox command came back as unknown 1326 **/ 1327 static void 1328 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1329 { 1330 struct lpfc_vport *vport = phba->pport; 1331 struct lpfc_sli *psli = &phba->sli; 1332 struct lpfc_sli_ring *pring; 1333 uint32_t event_data; 1334 unsigned long temperature; 1335 struct temp_event temp_event_data; 1336 struct Scsi_Host *shost; 1337 1338 /* If the pci channel is offline, ignore possible errors, 1339 * since we cannot communicate with the pci card anyway. 1340 */ 1341 if (pci_channel_offline(phba->pcidev)) { 1342 spin_lock_irq(&phba->hbalock); 1343 phba->hba_flag &= ~DEFER_ERATT; 1344 spin_unlock_irq(&phba->hbalock); 1345 return; 1346 } 1347 1348 /* If resets are disabled then leave the HBA alone and return */ 1349 if (!phba->cfg_enable_hba_reset) 1350 return; 1351 1352 /* Send an internal error event to mgmt application */ 1353 lpfc_board_errevt_to_mgmt(phba); 1354 1355 if (phba->hba_flag & DEFER_ERATT) 1356 lpfc_handle_deferred_eratt(phba); 1357 1358 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1359 if (phba->work_hs & HS_FFER6) 1360 /* Re-establishing Link */ 1361 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1362 "1301 Re-establishing Link " 1363 "Data: x%x x%x x%x\n", 1364 phba->work_hs, phba->work_status[0], 1365 phba->work_status[1]); 1366 if (phba->work_hs & HS_FFER8) 1367 /* Device Zeroization */ 1368 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1369 "2861 Host Authentication device " 1370 "zeroization Data:x%x x%x x%x\n", 1371 phba->work_hs, phba->work_status[0], 1372 phba->work_status[1]); 1373 1374 spin_lock_irq(&phba->hbalock); 1375 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1376 spin_unlock_irq(&phba->hbalock); 1377 1378 /* 1379 * Firmware stops when it triggled erratt with HS_FFER6. 1380 * That could cause the I/Os dropped by the firmware. 1381 * Error iocb (I/O) on txcmplq and let the SCSI layer 1382 * retry it after re-establishing link. 1383 */ 1384 pring = &psli->ring[psli->fcp_ring]; 1385 lpfc_sli_abort_iocb_ring(phba, pring); 1386 1387 /* 1388 * There was a firmware error. Take the hba offline and then 1389 * attempt to restart it. 1390 */ 1391 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1392 lpfc_offline(phba); 1393 lpfc_sli_brdrestart(phba); 1394 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1395 lpfc_unblock_mgmt_io(phba); 1396 return; 1397 } 1398 lpfc_unblock_mgmt_io(phba); 1399 } else if (phba->work_hs & HS_CRIT_TEMP) { 1400 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1401 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1402 temp_event_data.event_code = LPFC_CRIT_TEMP; 1403 temp_event_data.data = (uint32_t)temperature; 1404 1405 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1406 "0406 Adapter maximum temperature exceeded " 1407 "(%ld), taking this port offline " 1408 "Data: x%x x%x x%x\n", 1409 temperature, phba->work_hs, 1410 phba->work_status[0], phba->work_status[1]); 1411 1412 shost = lpfc_shost_from_vport(phba->pport); 1413 fc_host_post_vendor_event(shost, fc_get_event_number(), 1414 sizeof(temp_event_data), 1415 (char *) &temp_event_data, 1416 SCSI_NL_VID_TYPE_PCI 1417 | PCI_VENDOR_ID_EMULEX); 1418 1419 spin_lock_irq(&phba->hbalock); 1420 phba->over_temp_state = HBA_OVER_TEMP; 1421 spin_unlock_irq(&phba->hbalock); 1422 lpfc_offline_eratt(phba); 1423 1424 } else { 1425 /* The if clause above forces this code path when the status 1426 * failure is a value other than FFER6. Do not call the offline 1427 * twice. This is the adapter hardware error path. 1428 */ 1429 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1430 "0457 Adapter Hardware Error " 1431 "Data: x%x x%x x%x\n", 1432 phba->work_hs, 1433 phba->work_status[0], phba->work_status[1]); 1434 1435 event_data = FC_REG_DUMP_EVENT; 1436 shost = lpfc_shost_from_vport(vport); 1437 fc_host_post_vendor_event(shost, fc_get_event_number(), 1438 sizeof(event_data), (char *) &event_data, 1439 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1440 1441 lpfc_offline_eratt(phba); 1442 } 1443 return; 1444 } 1445 1446 /** 1447 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg 1448 * @phba: pointer to lpfc hba data structure. 1449 * @mbx_action: flag for mailbox shutdown action. 1450 * 1451 * This routine is invoked to perform an SLI4 port PCI function reset in 1452 * response to port status register polling attention. It waits for port 1453 * status register (ERR, RDY, RN) bits before proceeding with function reset. 1454 * During this process, interrupt vectors are freed and later requested 1455 * for handling possible port resource change. 1456 **/ 1457 static int 1458 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action) 1459 { 1460 int rc; 1461 uint32_t intr_mode; 1462 1463 /* 1464 * On error status condition, driver need to wait for port 1465 * ready before performing reset. 1466 */ 1467 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1468 if (!rc) { 1469 /* need reset: attempt for port recovery */ 1470 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1471 "2887 Reset Needed: Attempting Port " 1472 "Recovery...\n"); 1473 lpfc_offline_prep(phba, mbx_action); 1474 lpfc_offline(phba); 1475 /* release interrupt for possible resource change */ 1476 lpfc_sli4_disable_intr(phba); 1477 lpfc_sli_brdrestart(phba); 1478 /* request and enable interrupt */ 1479 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 1480 if (intr_mode == LPFC_INTR_ERROR) { 1481 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1482 "3175 Failed to enable interrupt\n"); 1483 return -EIO; 1484 } else { 1485 phba->intr_mode = intr_mode; 1486 } 1487 rc = lpfc_online(phba); 1488 if (rc == 0) 1489 lpfc_unblock_mgmt_io(phba); 1490 } 1491 return rc; 1492 } 1493 1494 /** 1495 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1496 * @phba: pointer to lpfc hba data structure. 1497 * 1498 * This routine is invoked to handle the SLI4 HBA hardware error attention 1499 * conditions. 1500 **/ 1501 static void 1502 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1503 { 1504 struct lpfc_vport *vport = phba->pport; 1505 uint32_t event_data; 1506 struct Scsi_Host *shost; 1507 uint32_t if_type; 1508 struct lpfc_register portstat_reg = {0}; 1509 uint32_t reg_err1, reg_err2; 1510 uint32_t uerrlo_reg, uemasklo_reg; 1511 uint32_t pci_rd_rc1, pci_rd_rc2; 1512 int rc; 1513 1514 /* If the pci channel is offline, ignore possible errors, since 1515 * we cannot communicate with the pci card anyway. 1516 */ 1517 if (pci_channel_offline(phba->pcidev)) 1518 return; 1519 /* If resets are disabled then leave the HBA alone and return */ 1520 if (!phba->cfg_enable_hba_reset) 1521 return; 1522 1523 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1524 switch (if_type) { 1525 case LPFC_SLI_INTF_IF_TYPE_0: 1526 pci_rd_rc1 = lpfc_readl( 1527 phba->sli4_hba.u.if_type0.UERRLOregaddr, 1528 &uerrlo_reg); 1529 pci_rd_rc2 = lpfc_readl( 1530 phba->sli4_hba.u.if_type0.UEMASKLOregaddr, 1531 &uemasklo_reg); 1532 /* consider PCI bus read error as pci_channel_offline */ 1533 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) 1534 return; 1535 lpfc_sli4_offline_eratt(phba); 1536 break; 1537 case LPFC_SLI_INTF_IF_TYPE_2: 1538 pci_rd_rc1 = lpfc_readl( 1539 phba->sli4_hba.u.if_type2.STATUSregaddr, 1540 &portstat_reg.word0); 1541 /* consider PCI bus read error as pci_channel_offline */ 1542 if (pci_rd_rc1 == -EIO) { 1543 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1544 "3151 PCI bus read access failure: x%x\n", 1545 readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); 1546 return; 1547 } 1548 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); 1549 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); 1550 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1551 /* TODO: Register for Overtemp async events. */ 1552 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1553 "2889 Port Overtemperature event, " 1554 "taking port offline\n"); 1555 spin_lock_irq(&phba->hbalock); 1556 phba->over_temp_state = HBA_OVER_TEMP; 1557 spin_unlock_irq(&phba->hbalock); 1558 lpfc_sli4_offline_eratt(phba); 1559 break; 1560 } 1561 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1562 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) 1563 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1564 "3143 Port Down: Firmware Restarted\n"); 1565 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1566 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1567 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1568 "3144 Port Down: Debug Dump\n"); 1569 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1570 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) 1571 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1572 "3145 Port Down: Provisioning\n"); 1573 1574 /* Check port status register for function reset */ 1575 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT); 1576 if (rc == 0) { 1577 /* don't report event on forced debug dump */ 1578 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1579 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1580 return; 1581 else 1582 break; 1583 } 1584 /* fall through for not able to recover */ 1585 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1586 "3152 Unrecoverable error, bring the port " 1587 "offline\n"); 1588 lpfc_sli4_offline_eratt(phba); 1589 break; 1590 case LPFC_SLI_INTF_IF_TYPE_1: 1591 default: 1592 break; 1593 } 1594 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1595 "3123 Report dump event to upper layer\n"); 1596 /* Send an internal error event to mgmt application */ 1597 lpfc_board_errevt_to_mgmt(phba); 1598 1599 event_data = FC_REG_DUMP_EVENT; 1600 shost = lpfc_shost_from_vport(vport); 1601 fc_host_post_vendor_event(shost, fc_get_event_number(), 1602 sizeof(event_data), (char *) &event_data, 1603 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1604 } 1605 1606 /** 1607 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1608 * @phba: pointer to lpfc HBA data structure. 1609 * 1610 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1611 * routine from the API jump table function pointer from the lpfc_hba struct. 1612 * 1613 * Return codes 1614 * 0 - success. 1615 * Any other value - error. 1616 **/ 1617 void 1618 lpfc_handle_eratt(struct lpfc_hba *phba) 1619 { 1620 (*phba->lpfc_handle_eratt)(phba); 1621 } 1622 1623 /** 1624 * lpfc_handle_latt - The HBA link event handler 1625 * @phba: pointer to lpfc hba data structure. 1626 * 1627 * This routine is invoked from the worker thread to handle a HBA host 1628 * attention link event. 1629 **/ 1630 void 1631 lpfc_handle_latt(struct lpfc_hba *phba) 1632 { 1633 struct lpfc_vport *vport = phba->pport; 1634 struct lpfc_sli *psli = &phba->sli; 1635 LPFC_MBOXQ_t *pmb; 1636 volatile uint32_t control; 1637 struct lpfc_dmabuf *mp; 1638 int rc = 0; 1639 1640 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1641 if (!pmb) { 1642 rc = 1; 1643 goto lpfc_handle_latt_err_exit; 1644 } 1645 1646 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1647 if (!mp) { 1648 rc = 2; 1649 goto lpfc_handle_latt_free_pmb; 1650 } 1651 1652 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1653 if (!mp->virt) { 1654 rc = 3; 1655 goto lpfc_handle_latt_free_mp; 1656 } 1657 1658 /* Cleanup any outstanding ELS commands */ 1659 lpfc_els_flush_all_cmd(phba); 1660 1661 psli->slistat.link_event++; 1662 lpfc_read_topology(phba, pmb, mp); 1663 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1664 pmb->vport = vport; 1665 /* Block ELS IOCBs until we have processed this mbox command */ 1666 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1667 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1668 if (rc == MBX_NOT_FINISHED) { 1669 rc = 4; 1670 goto lpfc_handle_latt_free_mbuf; 1671 } 1672 1673 /* Clear Link Attention in HA REG */ 1674 spin_lock_irq(&phba->hbalock); 1675 writel(HA_LATT, phba->HAregaddr); 1676 readl(phba->HAregaddr); /* flush */ 1677 spin_unlock_irq(&phba->hbalock); 1678 1679 return; 1680 1681 lpfc_handle_latt_free_mbuf: 1682 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1683 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1684 lpfc_handle_latt_free_mp: 1685 kfree(mp); 1686 lpfc_handle_latt_free_pmb: 1687 mempool_free(pmb, phba->mbox_mem_pool); 1688 lpfc_handle_latt_err_exit: 1689 /* Enable Link attention interrupts */ 1690 spin_lock_irq(&phba->hbalock); 1691 psli->sli_flag |= LPFC_PROCESS_LA; 1692 control = readl(phba->HCregaddr); 1693 control |= HC_LAINT_ENA; 1694 writel(control, phba->HCregaddr); 1695 readl(phba->HCregaddr); /* flush */ 1696 1697 /* Clear Link Attention in HA REG */ 1698 writel(HA_LATT, phba->HAregaddr); 1699 readl(phba->HAregaddr); /* flush */ 1700 spin_unlock_irq(&phba->hbalock); 1701 lpfc_linkdown(phba); 1702 phba->link_state = LPFC_HBA_ERROR; 1703 1704 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1705 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1706 1707 return; 1708 } 1709 1710 /** 1711 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1712 * @phba: pointer to lpfc hba data structure. 1713 * @vpd: pointer to the vital product data. 1714 * @len: length of the vital product data in bytes. 1715 * 1716 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1717 * an array of characters. In this routine, the ModelName, ProgramType, and 1718 * ModelDesc, etc. fields of the phba data structure will be populated. 1719 * 1720 * Return codes 1721 * 0 - pointer to the VPD passed in is NULL 1722 * 1 - success 1723 **/ 1724 int 1725 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1726 { 1727 uint8_t lenlo, lenhi; 1728 int Length; 1729 int i, j; 1730 int finished = 0; 1731 int index = 0; 1732 1733 if (!vpd) 1734 return 0; 1735 1736 /* Vital Product */ 1737 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1738 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1739 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1740 (uint32_t) vpd[3]); 1741 while (!finished && (index < (len - 4))) { 1742 switch (vpd[index]) { 1743 case 0x82: 1744 case 0x91: 1745 index += 1; 1746 lenlo = vpd[index]; 1747 index += 1; 1748 lenhi = vpd[index]; 1749 index += 1; 1750 i = ((((unsigned short)lenhi) << 8) + lenlo); 1751 index += i; 1752 break; 1753 case 0x90: 1754 index += 1; 1755 lenlo = vpd[index]; 1756 index += 1; 1757 lenhi = vpd[index]; 1758 index += 1; 1759 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1760 if (Length > len - index) 1761 Length = len - index; 1762 while (Length > 0) { 1763 /* Look for Serial Number */ 1764 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1765 index += 2; 1766 i = vpd[index]; 1767 index += 1; 1768 j = 0; 1769 Length -= (3+i); 1770 while(i--) { 1771 phba->SerialNumber[j++] = vpd[index++]; 1772 if (j == 31) 1773 break; 1774 } 1775 phba->SerialNumber[j] = 0; 1776 continue; 1777 } 1778 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1779 phba->vpd_flag |= VPD_MODEL_DESC; 1780 index += 2; 1781 i = vpd[index]; 1782 index += 1; 1783 j = 0; 1784 Length -= (3+i); 1785 while(i--) { 1786 phba->ModelDesc[j++] = vpd[index++]; 1787 if (j == 255) 1788 break; 1789 } 1790 phba->ModelDesc[j] = 0; 1791 continue; 1792 } 1793 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1794 phba->vpd_flag |= VPD_MODEL_NAME; 1795 index += 2; 1796 i = vpd[index]; 1797 index += 1; 1798 j = 0; 1799 Length -= (3+i); 1800 while(i--) { 1801 phba->ModelName[j++] = vpd[index++]; 1802 if (j == 79) 1803 break; 1804 } 1805 phba->ModelName[j] = 0; 1806 continue; 1807 } 1808 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1809 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1810 index += 2; 1811 i = vpd[index]; 1812 index += 1; 1813 j = 0; 1814 Length -= (3+i); 1815 while(i--) { 1816 phba->ProgramType[j++] = vpd[index++]; 1817 if (j == 255) 1818 break; 1819 } 1820 phba->ProgramType[j] = 0; 1821 continue; 1822 } 1823 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1824 phba->vpd_flag |= VPD_PORT; 1825 index += 2; 1826 i = vpd[index]; 1827 index += 1; 1828 j = 0; 1829 Length -= (3+i); 1830 while(i--) { 1831 if ((phba->sli_rev == LPFC_SLI_REV4) && 1832 (phba->sli4_hba.pport_name_sta == 1833 LPFC_SLI4_PPNAME_GET)) { 1834 j++; 1835 index++; 1836 } else 1837 phba->Port[j++] = vpd[index++]; 1838 if (j == 19) 1839 break; 1840 } 1841 if ((phba->sli_rev != LPFC_SLI_REV4) || 1842 (phba->sli4_hba.pport_name_sta == 1843 LPFC_SLI4_PPNAME_NON)) 1844 phba->Port[j] = 0; 1845 continue; 1846 } 1847 else { 1848 index += 2; 1849 i = vpd[index]; 1850 index += 1; 1851 index += i; 1852 Length -= (3 + i); 1853 } 1854 } 1855 finished = 0; 1856 break; 1857 case 0x78: 1858 finished = 1; 1859 break; 1860 default: 1861 index ++; 1862 break; 1863 } 1864 } 1865 1866 return(1); 1867 } 1868 1869 /** 1870 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1871 * @phba: pointer to lpfc hba data structure. 1872 * @mdp: pointer to the data structure to hold the derived model name. 1873 * @descp: pointer to the data structure to hold the derived description. 1874 * 1875 * This routine retrieves HBA's description based on its registered PCI device 1876 * ID. The @descp passed into this function points to an array of 256 chars. It 1877 * shall be returned with the model name, maximum speed, and the host bus type. 1878 * The @mdp passed into this function points to an array of 80 chars. When the 1879 * function returns, the @mdp will be filled with the model name. 1880 **/ 1881 static void 1882 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1883 { 1884 lpfc_vpd_t *vp; 1885 uint16_t dev_id = phba->pcidev->device; 1886 int max_speed; 1887 int GE = 0; 1888 int oneConnect = 0; /* default is not a oneConnect */ 1889 struct { 1890 char *name; 1891 char *bus; 1892 char *function; 1893 } m = {"<Unknown>", "", ""}; 1894 1895 if (mdp && mdp[0] != '\0' 1896 && descp && descp[0] != '\0') 1897 return; 1898 1899 if (phba->lmt & LMT_16Gb) 1900 max_speed = 16; 1901 else if (phba->lmt & LMT_10Gb) 1902 max_speed = 10; 1903 else if (phba->lmt & LMT_8Gb) 1904 max_speed = 8; 1905 else if (phba->lmt & LMT_4Gb) 1906 max_speed = 4; 1907 else if (phba->lmt & LMT_2Gb) 1908 max_speed = 2; 1909 else if (phba->lmt & LMT_1Gb) 1910 max_speed = 1; 1911 else 1912 max_speed = 0; 1913 1914 vp = &phba->vpd; 1915 1916 switch (dev_id) { 1917 case PCI_DEVICE_ID_FIREFLY: 1918 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1919 break; 1920 case PCI_DEVICE_ID_SUPERFLY: 1921 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1922 m = (typeof(m)){"LP7000", "PCI", 1923 "Fibre Channel Adapter"}; 1924 else 1925 m = (typeof(m)){"LP7000E", "PCI", 1926 "Fibre Channel Adapter"}; 1927 break; 1928 case PCI_DEVICE_ID_DRAGONFLY: 1929 m = (typeof(m)){"LP8000", "PCI", 1930 "Fibre Channel Adapter"}; 1931 break; 1932 case PCI_DEVICE_ID_CENTAUR: 1933 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1934 m = (typeof(m)){"LP9002", "PCI", 1935 "Fibre Channel Adapter"}; 1936 else 1937 m = (typeof(m)){"LP9000", "PCI", 1938 "Fibre Channel Adapter"}; 1939 break; 1940 case PCI_DEVICE_ID_RFLY: 1941 m = (typeof(m)){"LP952", "PCI", 1942 "Fibre Channel Adapter"}; 1943 break; 1944 case PCI_DEVICE_ID_PEGASUS: 1945 m = (typeof(m)){"LP9802", "PCI-X", 1946 "Fibre Channel Adapter"}; 1947 break; 1948 case PCI_DEVICE_ID_THOR: 1949 m = (typeof(m)){"LP10000", "PCI-X", 1950 "Fibre Channel Adapter"}; 1951 break; 1952 case PCI_DEVICE_ID_VIPER: 1953 m = (typeof(m)){"LPX1000", "PCI-X", 1954 "Fibre Channel Adapter"}; 1955 break; 1956 case PCI_DEVICE_ID_PFLY: 1957 m = (typeof(m)){"LP982", "PCI-X", 1958 "Fibre Channel Adapter"}; 1959 break; 1960 case PCI_DEVICE_ID_TFLY: 1961 m = (typeof(m)){"LP1050", "PCI-X", 1962 "Fibre Channel Adapter"}; 1963 break; 1964 case PCI_DEVICE_ID_HELIOS: 1965 m = (typeof(m)){"LP11000", "PCI-X2", 1966 "Fibre Channel Adapter"}; 1967 break; 1968 case PCI_DEVICE_ID_HELIOS_SCSP: 1969 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1970 "Fibre Channel Adapter"}; 1971 break; 1972 case PCI_DEVICE_ID_HELIOS_DCSP: 1973 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1974 "Fibre Channel Adapter"}; 1975 break; 1976 case PCI_DEVICE_ID_NEPTUNE: 1977 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1978 break; 1979 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1980 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1981 break; 1982 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1983 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1984 break; 1985 case PCI_DEVICE_ID_BMID: 1986 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1987 break; 1988 case PCI_DEVICE_ID_BSMB: 1989 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1990 break; 1991 case PCI_DEVICE_ID_ZEPHYR: 1992 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1993 break; 1994 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1995 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1996 break; 1997 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1998 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1999 GE = 1; 2000 break; 2001 case PCI_DEVICE_ID_ZMID: 2002 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 2003 break; 2004 case PCI_DEVICE_ID_ZSMB: 2005 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 2006 break; 2007 case PCI_DEVICE_ID_LP101: 2008 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 2009 break; 2010 case PCI_DEVICE_ID_LP10000S: 2011 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 2012 break; 2013 case PCI_DEVICE_ID_LP11000S: 2014 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 2015 break; 2016 case PCI_DEVICE_ID_LPE11000S: 2017 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 2018 break; 2019 case PCI_DEVICE_ID_SAT: 2020 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 2021 break; 2022 case PCI_DEVICE_ID_SAT_MID: 2023 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 2024 break; 2025 case PCI_DEVICE_ID_SAT_SMB: 2026 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 2027 break; 2028 case PCI_DEVICE_ID_SAT_DCSP: 2029 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 2030 break; 2031 case PCI_DEVICE_ID_SAT_SCSP: 2032 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 2033 break; 2034 case PCI_DEVICE_ID_SAT_S: 2035 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 2036 break; 2037 case PCI_DEVICE_ID_HORNET: 2038 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 2039 GE = 1; 2040 break; 2041 case PCI_DEVICE_ID_PROTEUS_VF: 2042 m = (typeof(m)){"LPev12000", "PCIe IOV", 2043 "Fibre Channel Adapter"}; 2044 break; 2045 case PCI_DEVICE_ID_PROTEUS_PF: 2046 m = (typeof(m)){"LPev12000", "PCIe IOV", 2047 "Fibre Channel Adapter"}; 2048 break; 2049 case PCI_DEVICE_ID_PROTEUS_S: 2050 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 2051 "Fibre Channel Adapter"}; 2052 break; 2053 case PCI_DEVICE_ID_TIGERSHARK: 2054 oneConnect = 1; 2055 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2056 break; 2057 case PCI_DEVICE_ID_TOMCAT: 2058 oneConnect = 1; 2059 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2060 break; 2061 case PCI_DEVICE_ID_FALCON: 2062 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2063 "EmulexSecure Fibre"}; 2064 break; 2065 case PCI_DEVICE_ID_BALIUS: 2066 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2067 "Fibre Channel Adapter"}; 2068 break; 2069 case PCI_DEVICE_ID_LANCER_FC: 2070 case PCI_DEVICE_ID_LANCER_FC_VF: 2071 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2072 break; 2073 case PCI_DEVICE_ID_LANCER_FCOE: 2074 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2075 oneConnect = 1; 2076 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2077 break; 2078 case PCI_DEVICE_ID_SKYHAWK: 2079 case PCI_DEVICE_ID_SKYHAWK_VF: 2080 oneConnect = 1; 2081 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"}; 2082 break; 2083 default: 2084 m = (typeof(m)){"Unknown", "", ""}; 2085 break; 2086 } 2087 2088 if (mdp && mdp[0] == '\0') 2089 snprintf(mdp, 79,"%s", m.name); 2090 /* 2091 * oneConnect hba requires special processing, they are all initiators 2092 * and we put the port number on the end 2093 */ 2094 if (descp && descp[0] == '\0') { 2095 if (oneConnect) 2096 snprintf(descp, 255, 2097 "Emulex OneConnect %s, %s Initiator %s", 2098 m.name, m.function, 2099 phba->Port); 2100 else if (max_speed == 0) 2101 snprintf(descp, 255, 2102 "Emulex %s %s %s ", 2103 m.name, m.bus, m.function); 2104 else 2105 snprintf(descp, 255, 2106 "Emulex %s %d%s %s %s", 2107 m.name, max_speed, (GE) ? "GE" : "Gb", 2108 m.bus, m.function); 2109 } 2110 } 2111 2112 /** 2113 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2114 * @phba: pointer to lpfc hba data structure. 2115 * @pring: pointer to a IOCB ring. 2116 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2117 * 2118 * This routine posts a given number of IOCBs with the associated DMA buffer 2119 * descriptors specified by the cnt argument to the given IOCB ring. 2120 * 2121 * Return codes 2122 * The number of IOCBs NOT able to be posted to the IOCB ring. 2123 **/ 2124 int 2125 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2126 { 2127 IOCB_t *icmd; 2128 struct lpfc_iocbq *iocb; 2129 struct lpfc_dmabuf *mp1, *mp2; 2130 2131 cnt += pring->missbufcnt; 2132 2133 /* While there are buffers to post */ 2134 while (cnt > 0) { 2135 /* Allocate buffer for command iocb */ 2136 iocb = lpfc_sli_get_iocbq(phba); 2137 if (iocb == NULL) { 2138 pring->missbufcnt = cnt; 2139 return cnt; 2140 } 2141 icmd = &iocb->iocb; 2142 2143 /* 2 buffers can be posted per command */ 2144 /* Allocate buffer to post */ 2145 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2146 if (mp1) 2147 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2148 if (!mp1 || !mp1->virt) { 2149 kfree(mp1); 2150 lpfc_sli_release_iocbq(phba, iocb); 2151 pring->missbufcnt = cnt; 2152 return cnt; 2153 } 2154 2155 INIT_LIST_HEAD(&mp1->list); 2156 /* Allocate buffer to post */ 2157 if (cnt > 1) { 2158 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2159 if (mp2) 2160 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2161 &mp2->phys); 2162 if (!mp2 || !mp2->virt) { 2163 kfree(mp2); 2164 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2165 kfree(mp1); 2166 lpfc_sli_release_iocbq(phba, iocb); 2167 pring->missbufcnt = cnt; 2168 return cnt; 2169 } 2170 2171 INIT_LIST_HEAD(&mp2->list); 2172 } else { 2173 mp2 = NULL; 2174 } 2175 2176 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2177 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2178 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2179 icmd->ulpBdeCount = 1; 2180 cnt--; 2181 if (mp2) { 2182 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2183 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2184 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2185 cnt--; 2186 icmd->ulpBdeCount = 2; 2187 } 2188 2189 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2190 icmd->ulpLe = 1; 2191 2192 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2193 IOCB_ERROR) { 2194 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2195 kfree(mp1); 2196 cnt++; 2197 if (mp2) { 2198 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2199 kfree(mp2); 2200 cnt++; 2201 } 2202 lpfc_sli_release_iocbq(phba, iocb); 2203 pring->missbufcnt = cnt; 2204 return cnt; 2205 } 2206 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2207 if (mp2) 2208 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2209 } 2210 pring->missbufcnt = 0; 2211 return 0; 2212 } 2213 2214 /** 2215 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2216 * @phba: pointer to lpfc hba data structure. 2217 * 2218 * This routine posts initial receive IOCB buffers to the ELS ring. The 2219 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2220 * set to 64 IOCBs. 2221 * 2222 * Return codes 2223 * 0 - success (currently always success) 2224 **/ 2225 static int 2226 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2227 { 2228 struct lpfc_sli *psli = &phba->sli; 2229 2230 /* Ring 0, ELS / CT buffers */ 2231 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2232 /* Ring 2 - FCP no buffers needed */ 2233 2234 return 0; 2235 } 2236 2237 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2238 2239 /** 2240 * lpfc_sha_init - Set up initial array of hash table entries 2241 * @HashResultPointer: pointer to an array as hash table. 2242 * 2243 * This routine sets up the initial values to the array of hash table entries 2244 * for the LC HBAs. 2245 **/ 2246 static void 2247 lpfc_sha_init(uint32_t * HashResultPointer) 2248 { 2249 HashResultPointer[0] = 0x67452301; 2250 HashResultPointer[1] = 0xEFCDAB89; 2251 HashResultPointer[2] = 0x98BADCFE; 2252 HashResultPointer[3] = 0x10325476; 2253 HashResultPointer[4] = 0xC3D2E1F0; 2254 } 2255 2256 /** 2257 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2258 * @HashResultPointer: pointer to an initial/result hash table. 2259 * @HashWorkingPointer: pointer to an working hash table. 2260 * 2261 * This routine iterates an initial hash table pointed by @HashResultPointer 2262 * with the values from the working hash table pointeed by @HashWorkingPointer. 2263 * The results are putting back to the initial hash table, returned through 2264 * the @HashResultPointer as the result hash table. 2265 **/ 2266 static void 2267 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2268 { 2269 int t; 2270 uint32_t TEMP; 2271 uint32_t A, B, C, D, E; 2272 t = 16; 2273 do { 2274 HashWorkingPointer[t] = 2275 S(1, 2276 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2277 8] ^ 2278 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2279 } while (++t <= 79); 2280 t = 0; 2281 A = HashResultPointer[0]; 2282 B = HashResultPointer[1]; 2283 C = HashResultPointer[2]; 2284 D = HashResultPointer[3]; 2285 E = HashResultPointer[4]; 2286 2287 do { 2288 if (t < 20) { 2289 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2290 } else if (t < 40) { 2291 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2292 } else if (t < 60) { 2293 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2294 } else { 2295 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2296 } 2297 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2298 E = D; 2299 D = C; 2300 C = S(30, B); 2301 B = A; 2302 A = TEMP; 2303 } while (++t <= 79); 2304 2305 HashResultPointer[0] += A; 2306 HashResultPointer[1] += B; 2307 HashResultPointer[2] += C; 2308 HashResultPointer[3] += D; 2309 HashResultPointer[4] += E; 2310 2311 } 2312 2313 /** 2314 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2315 * @RandomChallenge: pointer to the entry of host challenge random number array. 2316 * @HashWorking: pointer to the entry of the working hash array. 2317 * 2318 * This routine calculates the working hash array referred by @HashWorking 2319 * from the challenge random numbers associated with the host, referred by 2320 * @RandomChallenge. The result is put into the entry of the working hash 2321 * array and returned by reference through @HashWorking. 2322 **/ 2323 static void 2324 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2325 { 2326 *HashWorking = (*RandomChallenge ^ *HashWorking); 2327 } 2328 2329 /** 2330 * lpfc_hba_init - Perform special handling for LC HBA initialization 2331 * @phba: pointer to lpfc hba data structure. 2332 * @hbainit: pointer to an array of unsigned 32-bit integers. 2333 * 2334 * This routine performs the special handling for LC HBA initialization. 2335 **/ 2336 void 2337 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2338 { 2339 int t; 2340 uint32_t *HashWorking; 2341 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2342 2343 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2344 if (!HashWorking) 2345 return; 2346 2347 HashWorking[0] = HashWorking[78] = *pwwnn++; 2348 HashWorking[1] = HashWorking[79] = *pwwnn; 2349 2350 for (t = 0; t < 7; t++) 2351 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2352 2353 lpfc_sha_init(hbainit); 2354 lpfc_sha_iterate(hbainit, HashWorking); 2355 kfree(HashWorking); 2356 } 2357 2358 /** 2359 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2360 * @vport: pointer to a virtual N_Port data structure. 2361 * 2362 * This routine performs the necessary cleanups before deleting the @vport. 2363 * It invokes the discovery state machine to perform necessary state 2364 * transitions and to release the ndlps associated with the @vport. Note, 2365 * the physical port is treated as @vport 0. 2366 **/ 2367 void 2368 lpfc_cleanup(struct lpfc_vport *vport) 2369 { 2370 struct lpfc_hba *phba = vport->phba; 2371 struct lpfc_nodelist *ndlp, *next_ndlp; 2372 int i = 0; 2373 2374 if (phba->link_state > LPFC_LINK_DOWN) 2375 lpfc_port_link_failure(vport); 2376 2377 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2378 if (!NLP_CHK_NODE_ACT(ndlp)) { 2379 ndlp = lpfc_enable_node(vport, ndlp, 2380 NLP_STE_UNUSED_NODE); 2381 if (!ndlp) 2382 continue; 2383 spin_lock_irq(&phba->ndlp_lock); 2384 NLP_SET_FREE_REQ(ndlp); 2385 spin_unlock_irq(&phba->ndlp_lock); 2386 /* Trigger the release of the ndlp memory */ 2387 lpfc_nlp_put(ndlp); 2388 continue; 2389 } 2390 spin_lock_irq(&phba->ndlp_lock); 2391 if (NLP_CHK_FREE_REQ(ndlp)) { 2392 /* The ndlp should not be in memory free mode already */ 2393 spin_unlock_irq(&phba->ndlp_lock); 2394 continue; 2395 } else 2396 /* Indicate request for freeing ndlp memory */ 2397 NLP_SET_FREE_REQ(ndlp); 2398 spin_unlock_irq(&phba->ndlp_lock); 2399 2400 if (vport->port_type != LPFC_PHYSICAL_PORT && 2401 ndlp->nlp_DID == Fabric_DID) { 2402 /* Just free up ndlp with Fabric_DID for vports */ 2403 lpfc_nlp_put(ndlp); 2404 continue; 2405 } 2406 2407 /* take care of nodes in unused state before the state 2408 * machine taking action. 2409 */ 2410 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 2411 lpfc_nlp_put(ndlp); 2412 continue; 2413 } 2414 2415 if (ndlp->nlp_type & NLP_FABRIC) 2416 lpfc_disc_state_machine(vport, ndlp, NULL, 2417 NLP_EVT_DEVICE_RECOVERY); 2418 2419 lpfc_disc_state_machine(vport, ndlp, NULL, 2420 NLP_EVT_DEVICE_RM); 2421 } 2422 2423 /* At this point, ALL ndlp's should be gone 2424 * because of the previous NLP_EVT_DEVICE_RM. 2425 * Lets wait for this to happen, if needed. 2426 */ 2427 while (!list_empty(&vport->fc_nodes)) { 2428 if (i++ > 3000) { 2429 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2430 "0233 Nodelist not empty\n"); 2431 list_for_each_entry_safe(ndlp, next_ndlp, 2432 &vport->fc_nodes, nlp_listp) { 2433 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2434 LOG_NODE, 2435 "0282 did:x%x ndlp:x%p " 2436 "usgmap:x%x refcnt:%d\n", 2437 ndlp->nlp_DID, (void *)ndlp, 2438 ndlp->nlp_usg_map, 2439 atomic_read( 2440 &ndlp->kref.refcount)); 2441 } 2442 break; 2443 } 2444 2445 /* Wait for any activity on ndlps to settle */ 2446 msleep(10); 2447 } 2448 lpfc_cleanup_vports_rrqs(vport, NULL); 2449 } 2450 2451 /** 2452 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2453 * @vport: pointer to a virtual N_Port data structure. 2454 * 2455 * This routine stops all the timers associated with a @vport. This function 2456 * is invoked before disabling or deleting a @vport. Note that the physical 2457 * port is treated as @vport 0. 2458 **/ 2459 void 2460 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2461 { 2462 del_timer_sync(&vport->els_tmofunc); 2463 del_timer_sync(&vport->fc_fdmitmo); 2464 del_timer_sync(&vport->delayed_disc_tmo); 2465 lpfc_can_disctmo(vport); 2466 return; 2467 } 2468 2469 /** 2470 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2471 * @phba: pointer to lpfc hba data structure. 2472 * 2473 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2474 * caller of this routine should already hold the host lock. 2475 **/ 2476 void 2477 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2478 { 2479 /* Clear pending FCF rediscovery wait flag */ 2480 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2481 2482 /* Now, try to stop the timer */ 2483 del_timer(&phba->fcf.redisc_wait); 2484 } 2485 2486 /** 2487 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2488 * @phba: pointer to lpfc hba data structure. 2489 * 2490 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2491 * checks whether the FCF rediscovery wait timer is pending with the host 2492 * lock held before proceeding with disabling the timer and clearing the 2493 * wait timer pendig flag. 2494 **/ 2495 void 2496 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2497 { 2498 spin_lock_irq(&phba->hbalock); 2499 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2500 /* FCF rediscovery timer already fired or stopped */ 2501 spin_unlock_irq(&phba->hbalock); 2502 return; 2503 } 2504 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2505 /* Clear failover in progress flags */ 2506 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2507 spin_unlock_irq(&phba->hbalock); 2508 } 2509 2510 /** 2511 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2512 * @phba: pointer to lpfc hba data structure. 2513 * 2514 * This routine stops all the timers associated with a HBA. This function is 2515 * invoked before either putting a HBA offline or unloading the driver. 2516 **/ 2517 void 2518 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2519 { 2520 lpfc_stop_vport_timers(phba->pport); 2521 del_timer_sync(&phba->sli.mbox_tmo); 2522 del_timer_sync(&phba->fabric_block_timer); 2523 del_timer_sync(&phba->eratt_poll); 2524 del_timer_sync(&phba->hb_tmofunc); 2525 if (phba->sli_rev == LPFC_SLI_REV4) { 2526 del_timer_sync(&phba->rrq_tmr); 2527 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2528 } 2529 phba->hb_outstanding = 0; 2530 2531 switch (phba->pci_dev_grp) { 2532 case LPFC_PCI_DEV_LP: 2533 /* Stop any LightPulse device specific driver timers */ 2534 del_timer_sync(&phba->fcp_poll_timer); 2535 break; 2536 case LPFC_PCI_DEV_OC: 2537 /* Stop any OneConnect device sepcific driver timers */ 2538 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2539 break; 2540 default: 2541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2542 "0297 Invalid device group (x%x)\n", 2543 phba->pci_dev_grp); 2544 break; 2545 } 2546 return; 2547 } 2548 2549 /** 2550 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2551 * @phba: pointer to lpfc hba data structure. 2552 * 2553 * This routine marks a HBA's management interface as blocked. Once the HBA's 2554 * management interface is marked as blocked, all the user space access to 2555 * the HBA, whether they are from sysfs interface or libdfc interface will 2556 * all be blocked. The HBA is set to block the management interface when the 2557 * driver prepares the HBA interface for online or offline. 2558 **/ 2559 static void 2560 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action) 2561 { 2562 unsigned long iflag; 2563 uint8_t actcmd = MBX_HEARTBEAT; 2564 unsigned long timeout; 2565 2566 spin_lock_irqsave(&phba->hbalock, iflag); 2567 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2568 spin_unlock_irqrestore(&phba->hbalock, iflag); 2569 if (mbx_action == LPFC_MBX_NO_WAIT) 2570 return; 2571 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2572 spin_lock_irqsave(&phba->hbalock, iflag); 2573 if (phba->sli.mbox_active) { 2574 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2575 /* Determine how long we might wait for the active mailbox 2576 * command to be gracefully completed by firmware. 2577 */ 2578 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2579 phba->sli.mbox_active) * 1000) + jiffies; 2580 } 2581 spin_unlock_irqrestore(&phba->hbalock, iflag); 2582 2583 /* Wait for the outstnading mailbox command to complete */ 2584 while (phba->sli.mbox_active) { 2585 /* Check active mailbox complete status every 2ms */ 2586 msleep(2); 2587 if (time_after(jiffies, timeout)) { 2588 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2589 "2813 Mgmt IO is Blocked %x " 2590 "- mbox cmd %x still active\n", 2591 phba->sli.sli_flag, actcmd); 2592 break; 2593 } 2594 } 2595 } 2596 2597 /** 2598 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 2599 * @phba: pointer to lpfc hba data structure. 2600 * 2601 * Allocate RPIs for all active remote nodes. This is needed whenever 2602 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 2603 * is to fixup the temporary rpi assignments. 2604 **/ 2605 void 2606 lpfc_sli4_node_prep(struct lpfc_hba *phba) 2607 { 2608 struct lpfc_nodelist *ndlp, *next_ndlp; 2609 struct lpfc_vport **vports; 2610 int i; 2611 2612 if (phba->sli_rev != LPFC_SLI_REV4) 2613 return; 2614 2615 vports = lpfc_create_vport_work_array(phba); 2616 if (vports != NULL) { 2617 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2618 if (vports[i]->load_flag & FC_UNLOADING) 2619 continue; 2620 2621 list_for_each_entry_safe(ndlp, next_ndlp, 2622 &vports[i]->fc_nodes, 2623 nlp_listp) { 2624 if (NLP_CHK_NODE_ACT(ndlp)) 2625 ndlp->nlp_rpi = 2626 lpfc_sli4_alloc_rpi(phba); 2627 } 2628 } 2629 } 2630 lpfc_destroy_vport_work_array(phba, vports); 2631 } 2632 2633 /** 2634 * lpfc_online - Initialize and bring a HBA online 2635 * @phba: pointer to lpfc hba data structure. 2636 * 2637 * This routine initializes the HBA and brings a HBA online. During this 2638 * process, the management interface is blocked to prevent user space access 2639 * to the HBA interfering with the driver initialization. 2640 * 2641 * Return codes 2642 * 0 - successful 2643 * 1 - failed 2644 **/ 2645 int 2646 lpfc_online(struct lpfc_hba *phba) 2647 { 2648 struct lpfc_vport *vport; 2649 struct lpfc_vport **vports; 2650 int i; 2651 bool vpis_cleared = false; 2652 2653 if (!phba) 2654 return 0; 2655 vport = phba->pport; 2656 2657 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2658 return 0; 2659 2660 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2661 "0458 Bring Adapter online\n"); 2662 2663 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 2664 2665 if (!lpfc_sli_queue_setup(phba)) { 2666 lpfc_unblock_mgmt_io(phba); 2667 return 1; 2668 } 2669 2670 if (phba->sli_rev == LPFC_SLI_REV4) { 2671 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2672 lpfc_unblock_mgmt_io(phba); 2673 return 1; 2674 } 2675 spin_lock_irq(&phba->hbalock); 2676 if (!phba->sli4_hba.max_cfg_param.vpi_used) 2677 vpis_cleared = true; 2678 spin_unlock_irq(&phba->hbalock); 2679 } else { 2680 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2681 lpfc_unblock_mgmt_io(phba); 2682 return 1; 2683 } 2684 } 2685 2686 vports = lpfc_create_vport_work_array(phba); 2687 if (vports != NULL) 2688 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2689 struct Scsi_Host *shost; 2690 shost = lpfc_shost_from_vport(vports[i]); 2691 spin_lock_irq(shost->host_lock); 2692 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2693 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2694 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2695 if (phba->sli_rev == LPFC_SLI_REV4) { 2696 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2697 if ((vpis_cleared) && 2698 (vports[i]->port_type != 2699 LPFC_PHYSICAL_PORT)) 2700 vports[i]->vpi = 0; 2701 } 2702 spin_unlock_irq(shost->host_lock); 2703 } 2704 lpfc_destroy_vport_work_array(phba, vports); 2705 2706 lpfc_unblock_mgmt_io(phba); 2707 return 0; 2708 } 2709 2710 /** 2711 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2712 * @phba: pointer to lpfc hba data structure. 2713 * 2714 * This routine marks a HBA's management interface as not blocked. Once the 2715 * HBA's management interface is marked as not blocked, all the user space 2716 * access to the HBA, whether they are from sysfs interface or libdfc 2717 * interface will be allowed. The HBA is set to block the management interface 2718 * when the driver prepares the HBA interface for online or offline and then 2719 * set to unblock the management interface afterwards. 2720 **/ 2721 void 2722 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2723 { 2724 unsigned long iflag; 2725 2726 spin_lock_irqsave(&phba->hbalock, iflag); 2727 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2728 spin_unlock_irqrestore(&phba->hbalock, iflag); 2729 } 2730 2731 /** 2732 * lpfc_offline_prep - Prepare a HBA to be brought offline 2733 * @phba: pointer to lpfc hba data structure. 2734 * 2735 * This routine is invoked to prepare a HBA to be brought offline. It performs 2736 * unregistration login to all the nodes on all vports and flushes the mailbox 2737 * queue to make it ready to be brought offline. 2738 **/ 2739 void 2740 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) 2741 { 2742 struct lpfc_vport *vport = phba->pport; 2743 struct lpfc_nodelist *ndlp, *next_ndlp; 2744 struct lpfc_vport **vports; 2745 struct Scsi_Host *shost; 2746 int i; 2747 2748 if (vport->fc_flag & FC_OFFLINE_MODE) 2749 return; 2750 2751 lpfc_block_mgmt_io(phba, mbx_action); 2752 2753 lpfc_linkdown(phba); 2754 2755 /* Issue an unreg_login to all nodes on all vports */ 2756 vports = lpfc_create_vport_work_array(phba); 2757 if (vports != NULL) { 2758 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2759 if (vports[i]->load_flag & FC_UNLOADING) 2760 continue; 2761 shost = lpfc_shost_from_vport(vports[i]); 2762 spin_lock_irq(shost->host_lock); 2763 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2764 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2765 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2766 spin_unlock_irq(shost->host_lock); 2767 2768 shost = lpfc_shost_from_vport(vports[i]); 2769 list_for_each_entry_safe(ndlp, next_ndlp, 2770 &vports[i]->fc_nodes, 2771 nlp_listp) { 2772 if (!NLP_CHK_NODE_ACT(ndlp)) 2773 continue; 2774 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2775 continue; 2776 if (ndlp->nlp_type & NLP_FABRIC) { 2777 lpfc_disc_state_machine(vports[i], ndlp, 2778 NULL, NLP_EVT_DEVICE_RECOVERY); 2779 lpfc_disc_state_machine(vports[i], ndlp, 2780 NULL, NLP_EVT_DEVICE_RM); 2781 } 2782 spin_lock_irq(shost->host_lock); 2783 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2784 spin_unlock_irq(shost->host_lock); 2785 /* 2786 * Whenever an SLI4 port goes offline, free the 2787 * RPI. Get a new RPI when the adapter port 2788 * comes back online. 2789 */ 2790 if (phba->sli_rev == LPFC_SLI_REV4) 2791 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 2792 lpfc_unreg_rpi(vports[i], ndlp); 2793 } 2794 } 2795 } 2796 lpfc_destroy_vport_work_array(phba, vports); 2797 2798 lpfc_sli_mbox_sys_shutdown(phba, mbx_action); 2799 } 2800 2801 /** 2802 * lpfc_offline - Bring a HBA offline 2803 * @phba: pointer to lpfc hba data structure. 2804 * 2805 * This routine actually brings a HBA offline. It stops all the timers 2806 * associated with the HBA, brings down the SLI layer, and eventually 2807 * marks the HBA as in offline state for the upper layer protocol. 2808 **/ 2809 void 2810 lpfc_offline(struct lpfc_hba *phba) 2811 { 2812 struct Scsi_Host *shost; 2813 struct lpfc_vport **vports; 2814 int i; 2815 2816 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2817 return; 2818 2819 /* stop port and all timers associated with this hba */ 2820 lpfc_stop_port(phba); 2821 vports = lpfc_create_vport_work_array(phba); 2822 if (vports != NULL) 2823 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2824 lpfc_stop_vport_timers(vports[i]); 2825 lpfc_destroy_vport_work_array(phba, vports); 2826 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2827 "0460 Bring Adapter offline\n"); 2828 /* Bring down the SLI Layer and cleanup. The HBA is offline 2829 now. */ 2830 lpfc_sli_hba_down(phba); 2831 spin_lock_irq(&phba->hbalock); 2832 phba->work_ha = 0; 2833 spin_unlock_irq(&phba->hbalock); 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 shost = lpfc_shost_from_vport(vports[i]); 2838 spin_lock_irq(shost->host_lock); 2839 vports[i]->work_port_events = 0; 2840 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2841 spin_unlock_irq(shost->host_lock); 2842 } 2843 lpfc_destroy_vport_work_array(phba, vports); 2844 } 2845 2846 /** 2847 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2848 * @phba: pointer to lpfc hba data structure. 2849 * 2850 * This routine is to free all the SCSI buffers and IOCBs from the driver 2851 * list back to kernel. It is called from lpfc_pci_remove_one to free 2852 * the internal resources before the device is removed from the system. 2853 **/ 2854 static void 2855 lpfc_scsi_free(struct lpfc_hba *phba) 2856 { 2857 struct lpfc_scsi_buf *sb, *sb_next; 2858 struct lpfc_iocbq *io, *io_next; 2859 2860 spin_lock_irq(&phba->hbalock); 2861 2862 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2863 2864 spin_lock(&phba->scsi_buf_list_put_lock); 2865 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put, 2866 list) { 2867 list_del(&sb->list); 2868 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2869 sb->dma_handle); 2870 kfree(sb); 2871 phba->total_scsi_bufs--; 2872 } 2873 spin_unlock(&phba->scsi_buf_list_put_lock); 2874 2875 spin_lock(&phba->scsi_buf_list_get_lock); 2876 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get, 2877 list) { 2878 list_del(&sb->list); 2879 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2880 sb->dma_handle); 2881 kfree(sb); 2882 phba->total_scsi_bufs--; 2883 } 2884 spin_unlock(&phba->scsi_buf_list_get_lock); 2885 2886 /* Release all the lpfc_iocbq entries maintained by this host. */ 2887 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2888 list_del(&io->list); 2889 kfree(io); 2890 phba->total_iocbq_bufs--; 2891 } 2892 2893 spin_unlock_irq(&phba->hbalock); 2894 } 2895 2896 /** 2897 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping 2898 * @phba: pointer to lpfc hba data structure. 2899 * 2900 * This routine first calculates the sizes of the current els and allocated 2901 * scsi sgl lists, and then goes through all sgls to updates the physical 2902 * XRIs assigned due to port function reset. During port initialization, the 2903 * current els and allocated scsi sgl lists are 0s. 2904 * 2905 * Return codes 2906 * 0 - successful (for now, it always returns 0) 2907 **/ 2908 int 2909 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba) 2910 { 2911 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 2912 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL; 2913 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt; 2914 LIST_HEAD(els_sgl_list); 2915 LIST_HEAD(scsi_sgl_list); 2916 int rc; 2917 2918 /* 2919 * update on pci function's els xri-sgl list 2920 */ 2921 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 2922 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 2923 /* els xri-sgl expanded */ 2924 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 2925 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2926 "3157 ELS xri-sgl count increased from " 2927 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 2928 els_xri_cnt); 2929 /* allocate the additional els sgls */ 2930 for (i = 0; i < xri_cnt; i++) { 2931 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 2932 GFP_KERNEL); 2933 if (sglq_entry == NULL) { 2934 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2935 "2562 Failure to allocate an " 2936 "ELS sgl entry:%d\n", i); 2937 rc = -ENOMEM; 2938 goto out_free_mem; 2939 } 2940 sglq_entry->buff_type = GEN_BUFF_TYPE; 2941 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 2942 &sglq_entry->phys); 2943 if (sglq_entry->virt == NULL) { 2944 kfree(sglq_entry); 2945 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2946 "2563 Failure to allocate an " 2947 "ELS mbuf:%d\n", i); 2948 rc = -ENOMEM; 2949 goto out_free_mem; 2950 } 2951 sglq_entry->sgl = sglq_entry->virt; 2952 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 2953 sglq_entry->state = SGL_FREED; 2954 list_add_tail(&sglq_entry->list, &els_sgl_list); 2955 } 2956 spin_lock_irq(&phba->hbalock); 2957 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 2958 spin_unlock_irq(&phba->hbalock); 2959 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 2960 /* els xri-sgl shrinked */ 2961 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 2962 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2963 "3158 ELS xri-sgl count decreased from " 2964 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 2965 els_xri_cnt); 2966 spin_lock_irq(&phba->hbalock); 2967 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list); 2968 spin_unlock_irq(&phba->hbalock); 2969 /* release extra els sgls from list */ 2970 for (i = 0; i < xri_cnt; i++) { 2971 list_remove_head(&els_sgl_list, 2972 sglq_entry, struct lpfc_sglq, list); 2973 if (sglq_entry) { 2974 lpfc_mbuf_free(phba, sglq_entry->virt, 2975 sglq_entry->phys); 2976 kfree(sglq_entry); 2977 } 2978 } 2979 spin_lock_irq(&phba->hbalock); 2980 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 2981 spin_unlock_irq(&phba->hbalock); 2982 } else 2983 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2984 "3163 ELS xri-sgl count unchanged: %d\n", 2985 els_xri_cnt); 2986 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 2987 2988 /* update xris to els sgls on the list */ 2989 sglq_entry = NULL; 2990 sglq_entry_next = NULL; 2991 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 2992 &phba->sli4_hba.lpfc_sgl_list, list) { 2993 lxri = lpfc_sli4_next_xritag(phba); 2994 if (lxri == NO_XRI) { 2995 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2996 "2400 Failed to allocate xri for " 2997 "ELS sgl\n"); 2998 rc = -ENOMEM; 2999 goto out_free_mem; 3000 } 3001 sglq_entry->sli4_lxritag = lxri; 3002 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3003 } 3004 3005 /* 3006 * update on pci function's allocated scsi xri-sgl list 3007 */ 3008 phba->total_scsi_bufs = 0; 3009 3010 /* maximum number of xris available for scsi buffers */ 3011 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - 3012 els_xri_cnt; 3013 3014 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3015 "2401 Current allocated SCSI xri-sgl count:%d, " 3016 "maximum SCSI xri count:%d\n", 3017 phba->sli4_hba.scsi_xri_cnt, 3018 phba->sli4_hba.scsi_xri_max); 3019 3020 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3021 spin_lock_irq(&phba->scsi_buf_list_put_lock); 3022 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list); 3023 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list); 3024 spin_unlock_irq(&phba->scsi_buf_list_put_lock); 3025 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3026 3027 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { 3028 /* max scsi xri shrinked below the allocated scsi buffers */ 3029 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - 3030 phba->sli4_hba.scsi_xri_max; 3031 /* release the extra allocated scsi buffers */ 3032 for (i = 0; i < scsi_xri_cnt; i++) { 3033 list_remove_head(&scsi_sgl_list, psb, 3034 struct lpfc_scsi_buf, list); 3035 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data, 3036 psb->dma_handle); 3037 kfree(psb); 3038 } 3039 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3040 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; 3041 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3042 } 3043 3044 /* update xris associated to remaining allocated scsi buffers */ 3045 psb = NULL; 3046 psb_next = NULL; 3047 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { 3048 lxri = lpfc_sli4_next_xritag(phba); 3049 if (lxri == NO_XRI) { 3050 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3051 "2560 Failed to allocate xri for " 3052 "scsi buffer\n"); 3053 rc = -ENOMEM; 3054 goto out_free_mem; 3055 } 3056 psb->cur_iocbq.sli4_lxritag = lxri; 3057 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3058 } 3059 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3060 spin_lock_irq(&phba->scsi_buf_list_put_lock); 3061 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get); 3062 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 3063 spin_unlock_irq(&phba->scsi_buf_list_put_lock); 3064 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3065 3066 return 0; 3067 3068 out_free_mem: 3069 lpfc_free_els_sgl_list(phba); 3070 lpfc_scsi_free(phba); 3071 return rc; 3072 } 3073 3074 /** 3075 * lpfc_create_port - Create an FC port 3076 * @phba: pointer to lpfc hba data structure. 3077 * @instance: a unique integer ID to this FC port. 3078 * @dev: pointer to the device data structure. 3079 * 3080 * This routine creates a FC port for the upper layer protocol. The FC port 3081 * can be created on top of either a physical port or a virtual port provided 3082 * by the HBA. This routine also allocates a SCSI host data structure (shost) 3083 * and associates the FC port created before adding the shost into the SCSI 3084 * layer. 3085 * 3086 * Return codes 3087 * @vport - pointer to the virtual N_Port data structure. 3088 * NULL - port create failed. 3089 **/ 3090 struct lpfc_vport * 3091 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 3092 { 3093 struct lpfc_vport *vport; 3094 struct Scsi_Host *shost; 3095 int error = 0; 3096 3097 if (dev != &phba->pcidev->dev) 3098 shost = scsi_host_alloc(&lpfc_vport_template, 3099 sizeof(struct lpfc_vport)); 3100 else 3101 shost = scsi_host_alloc(&lpfc_template, 3102 sizeof(struct lpfc_vport)); 3103 if (!shost) 3104 goto out; 3105 3106 vport = (struct lpfc_vport *) shost->hostdata; 3107 vport->phba = phba; 3108 vport->load_flag |= FC_LOADING; 3109 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3110 vport->fc_rscn_flush = 0; 3111 3112 lpfc_get_vport_cfgparam(vport); 3113 shost->unique_id = instance; 3114 shost->max_id = LPFC_MAX_TARGET; 3115 shost->max_lun = vport->cfg_max_luns; 3116 shost->this_id = -1; 3117 shost->max_cmd_len = 16; 3118 if (phba->sli_rev == LPFC_SLI_REV4) { 3119 shost->dma_boundary = 3120 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3121 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 3122 } 3123 3124 /* 3125 * Set initial can_queue value since 0 is no longer supported and 3126 * scsi_add_host will fail. This will be adjusted later based on the 3127 * max xri value determined in hba setup. 3128 */ 3129 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3130 if (dev != &phba->pcidev->dev) { 3131 shost->transportt = lpfc_vport_transport_template; 3132 vport->port_type = LPFC_NPIV_PORT; 3133 } else { 3134 shost->transportt = lpfc_transport_template; 3135 vport->port_type = LPFC_PHYSICAL_PORT; 3136 } 3137 3138 /* Initialize all internally managed lists. */ 3139 INIT_LIST_HEAD(&vport->fc_nodes); 3140 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3141 spin_lock_init(&vport->work_port_lock); 3142 3143 init_timer(&vport->fc_disctmo); 3144 vport->fc_disctmo.function = lpfc_disc_timeout; 3145 vport->fc_disctmo.data = (unsigned long)vport; 3146 3147 init_timer(&vport->fc_fdmitmo); 3148 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 3149 vport->fc_fdmitmo.data = (unsigned long)vport; 3150 3151 init_timer(&vport->els_tmofunc); 3152 vport->els_tmofunc.function = lpfc_els_timeout; 3153 vport->els_tmofunc.data = (unsigned long)vport; 3154 3155 init_timer(&vport->delayed_disc_tmo); 3156 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; 3157 vport->delayed_disc_tmo.data = (unsigned long)vport; 3158 3159 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3160 if (error) 3161 goto out_put_shost; 3162 3163 spin_lock_irq(&phba->hbalock); 3164 list_add_tail(&vport->listentry, &phba->port_list); 3165 spin_unlock_irq(&phba->hbalock); 3166 return vport; 3167 3168 out_put_shost: 3169 scsi_host_put(shost); 3170 out: 3171 return NULL; 3172 } 3173 3174 /** 3175 * destroy_port - destroy an FC port 3176 * @vport: pointer to an lpfc virtual N_Port data structure. 3177 * 3178 * This routine destroys a FC port from the upper layer protocol. All the 3179 * resources associated with the port are released. 3180 **/ 3181 void 3182 destroy_port(struct lpfc_vport *vport) 3183 { 3184 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3185 struct lpfc_hba *phba = vport->phba; 3186 3187 lpfc_debugfs_terminate(vport); 3188 fc_remove_host(shost); 3189 scsi_remove_host(shost); 3190 3191 spin_lock_irq(&phba->hbalock); 3192 list_del_init(&vport->listentry); 3193 spin_unlock_irq(&phba->hbalock); 3194 3195 lpfc_cleanup(vport); 3196 return; 3197 } 3198 3199 /** 3200 * lpfc_get_instance - Get a unique integer ID 3201 * 3202 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 3203 * uses the kernel idr facility to perform the task. 3204 * 3205 * Return codes: 3206 * instance - a unique integer ID allocated as the new instance. 3207 * -1 - lpfc get instance failed. 3208 **/ 3209 int 3210 lpfc_get_instance(void) 3211 { 3212 int ret; 3213 3214 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); 3215 return ret < 0 ? -1 : ret; 3216 } 3217 3218 /** 3219 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 3220 * @shost: pointer to SCSI host data structure. 3221 * @time: elapsed time of the scan in jiffies. 3222 * 3223 * This routine is called by the SCSI layer with a SCSI host to determine 3224 * whether the scan host is finished. 3225 * 3226 * Note: there is no scan_start function as adapter initialization will have 3227 * asynchronously kicked off the link initialization. 3228 * 3229 * Return codes 3230 * 0 - SCSI host scan is not over yet. 3231 * 1 - SCSI host scan is over. 3232 **/ 3233 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 3234 { 3235 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3236 struct lpfc_hba *phba = vport->phba; 3237 int stat = 0; 3238 3239 spin_lock_irq(shost->host_lock); 3240 3241 if (vport->load_flag & FC_UNLOADING) { 3242 stat = 1; 3243 goto finished; 3244 } 3245 if (time >= msecs_to_jiffies(30 * 1000)) { 3246 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3247 "0461 Scanning longer than 30 " 3248 "seconds. Continuing initialization\n"); 3249 stat = 1; 3250 goto finished; 3251 } 3252 if (time >= msecs_to_jiffies(15 * 1000) && 3253 phba->link_state <= LPFC_LINK_DOWN) { 3254 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3255 "0465 Link down longer than 15 " 3256 "seconds. Continuing initialization\n"); 3257 stat = 1; 3258 goto finished; 3259 } 3260 3261 if (vport->port_state != LPFC_VPORT_READY) 3262 goto finished; 3263 if (vport->num_disc_nodes || vport->fc_prli_sent) 3264 goto finished; 3265 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000)) 3266 goto finished; 3267 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 3268 goto finished; 3269 3270 stat = 1; 3271 3272 finished: 3273 spin_unlock_irq(shost->host_lock); 3274 return stat; 3275 } 3276 3277 /** 3278 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 3279 * @shost: pointer to SCSI host data structure. 3280 * 3281 * This routine initializes a given SCSI host attributes on a FC port. The 3282 * SCSI host can be either on top of a physical port or a virtual port. 3283 **/ 3284 void lpfc_host_attrib_init(struct Scsi_Host *shost) 3285 { 3286 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3287 struct lpfc_hba *phba = vport->phba; 3288 /* 3289 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 3290 */ 3291 3292 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 3293 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3294 fc_host_supported_classes(shost) = FC_COS_CLASS3; 3295 3296 memset(fc_host_supported_fc4s(shost), 0, 3297 sizeof(fc_host_supported_fc4s(shost))); 3298 fc_host_supported_fc4s(shost)[2] = 1; 3299 fc_host_supported_fc4s(shost)[7] = 1; 3300 3301 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 3302 sizeof fc_host_symbolic_name(shost)); 3303 3304 fc_host_supported_speeds(shost) = 0; 3305 if (phba->lmt & LMT_16Gb) 3306 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 3307 if (phba->lmt & LMT_10Gb) 3308 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 3309 if (phba->lmt & LMT_8Gb) 3310 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 3311 if (phba->lmt & LMT_4Gb) 3312 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 3313 if (phba->lmt & LMT_2Gb) 3314 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 3315 if (phba->lmt & LMT_1Gb) 3316 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 3317 3318 fc_host_maxframe_size(shost) = 3319 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 3320 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 3321 3322 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 3323 3324 /* This value is also unchanging */ 3325 memset(fc_host_active_fc4s(shost), 0, 3326 sizeof(fc_host_active_fc4s(shost))); 3327 fc_host_active_fc4s(shost)[2] = 1; 3328 fc_host_active_fc4s(shost)[7] = 1; 3329 3330 fc_host_max_npiv_vports(shost) = phba->max_vpi; 3331 spin_lock_irq(shost->host_lock); 3332 vport->load_flag &= ~FC_LOADING; 3333 spin_unlock_irq(shost->host_lock); 3334 } 3335 3336 /** 3337 * lpfc_stop_port_s3 - Stop SLI3 device port 3338 * @phba: pointer to lpfc hba data structure. 3339 * 3340 * This routine is invoked to stop an SLI3 device port, it stops the device 3341 * from generating interrupts and stops the device driver's timers for the 3342 * device. 3343 **/ 3344 static void 3345 lpfc_stop_port_s3(struct lpfc_hba *phba) 3346 { 3347 /* Clear all interrupt enable conditions */ 3348 writel(0, phba->HCregaddr); 3349 readl(phba->HCregaddr); /* flush */ 3350 /* Clear all pending interrupts */ 3351 writel(0xffffffff, phba->HAregaddr); 3352 readl(phba->HAregaddr); /* flush */ 3353 3354 /* Reset some HBA SLI setup states */ 3355 lpfc_stop_hba_timers(phba); 3356 phba->pport->work_port_events = 0; 3357 } 3358 3359 /** 3360 * lpfc_stop_port_s4 - Stop SLI4 device port 3361 * @phba: pointer to lpfc hba data structure. 3362 * 3363 * This routine is invoked to stop an SLI4 device port, it stops the device 3364 * from generating interrupts and stops the device driver's timers for the 3365 * device. 3366 **/ 3367 static void 3368 lpfc_stop_port_s4(struct lpfc_hba *phba) 3369 { 3370 /* Reset some HBA SLI4 setup states */ 3371 lpfc_stop_hba_timers(phba); 3372 phba->pport->work_port_events = 0; 3373 phba->sli4_hba.intr_enable = 0; 3374 } 3375 3376 /** 3377 * lpfc_stop_port - Wrapper function for stopping hba port 3378 * @phba: Pointer to HBA context object. 3379 * 3380 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 3381 * the API jump table function pointer from the lpfc_hba struct. 3382 **/ 3383 void 3384 lpfc_stop_port(struct lpfc_hba *phba) 3385 { 3386 phba->lpfc_stop_port(phba); 3387 } 3388 3389 /** 3390 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 3391 * @phba: Pointer to hba for which this call is being executed. 3392 * 3393 * This routine starts the timer waiting for the FCF rediscovery to complete. 3394 **/ 3395 void 3396 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 3397 { 3398 unsigned long fcf_redisc_wait_tmo = 3399 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 3400 /* Start fcf rediscovery wait period timer */ 3401 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 3402 spin_lock_irq(&phba->hbalock); 3403 /* Allow action to new fcf asynchronous event */ 3404 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 3405 /* Mark the FCF rediscovery pending state */ 3406 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 3407 spin_unlock_irq(&phba->hbalock); 3408 } 3409 3410 /** 3411 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 3412 * @ptr: Map to lpfc_hba data structure pointer. 3413 * 3414 * This routine is invoked when waiting for FCF table rediscover has been 3415 * timed out. If new FCF record(s) has (have) been discovered during the 3416 * wait period, a new FCF event shall be added to the FCOE async event 3417 * list, and then worker thread shall be waked up for processing from the 3418 * worker thread context. 3419 **/ 3420 void 3421 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 3422 { 3423 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 3424 3425 /* Don't send FCF rediscovery event if timer cancelled */ 3426 spin_lock_irq(&phba->hbalock); 3427 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 3428 spin_unlock_irq(&phba->hbalock); 3429 return; 3430 } 3431 /* Clear FCF rediscovery timer pending flag */ 3432 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 3433 /* FCF rediscovery event to worker thread */ 3434 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 3435 spin_unlock_irq(&phba->hbalock); 3436 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3437 "2776 FCF rediscover quiescent timer expired\n"); 3438 /* wake up worker thread */ 3439 lpfc_worker_wake_up(phba); 3440 } 3441 3442 /** 3443 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3444 * @phba: pointer to lpfc hba data structure. 3445 * @acqe_link: pointer to the async link completion queue entry. 3446 * 3447 * This routine is to parse the SLI4 link-attention link fault code and 3448 * translate it into the base driver's read link attention mailbox command 3449 * status. 3450 * 3451 * Return: Link-attention status in terms of base driver's coding. 3452 **/ 3453 static uint16_t 3454 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3455 struct lpfc_acqe_link *acqe_link) 3456 { 3457 uint16_t latt_fault; 3458 3459 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3460 case LPFC_ASYNC_LINK_FAULT_NONE: 3461 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3462 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3463 latt_fault = 0; 3464 break; 3465 default: 3466 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3467 "0398 Invalid link fault code: x%x\n", 3468 bf_get(lpfc_acqe_link_fault, acqe_link)); 3469 latt_fault = MBXERR_ERROR; 3470 break; 3471 } 3472 return latt_fault; 3473 } 3474 3475 /** 3476 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3477 * @phba: pointer to lpfc hba data structure. 3478 * @acqe_link: pointer to the async link completion queue entry. 3479 * 3480 * This routine is to parse the SLI4 link attention type and translate it 3481 * into the base driver's link attention type coding. 3482 * 3483 * Return: Link attention type in terms of base driver's coding. 3484 **/ 3485 static uint8_t 3486 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3487 struct lpfc_acqe_link *acqe_link) 3488 { 3489 uint8_t att_type; 3490 3491 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3492 case LPFC_ASYNC_LINK_STATUS_DOWN: 3493 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3494 att_type = LPFC_ATT_LINK_DOWN; 3495 break; 3496 case LPFC_ASYNC_LINK_STATUS_UP: 3497 /* Ignore physical link up events - wait for logical link up */ 3498 att_type = LPFC_ATT_RESERVED; 3499 break; 3500 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3501 att_type = LPFC_ATT_LINK_UP; 3502 break; 3503 default: 3504 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3505 "0399 Invalid link attention type: x%x\n", 3506 bf_get(lpfc_acqe_link_status, acqe_link)); 3507 att_type = LPFC_ATT_RESERVED; 3508 break; 3509 } 3510 return att_type; 3511 } 3512 3513 /** 3514 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3515 * @phba: pointer to lpfc hba data structure. 3516 * @acqe_link: pointer to the async link completion queue entry. 3517 * 3518 * This routine is to parse the SLI4 link-attention link speed and translate 3519 * it into the base driver's link-attention link speed coding. 3520 * 3521 * Return: Link-attention link speed in terms of base driver's coding. 3522 **/ 3523 static uint8_t 3524 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3525 struct lpfc_acqe_link *acqe_link) 3526 { 3527 uint8_t link_speed; 3528 3529 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3530 case LPFC_ASYNC_LINK_SPEED_ZERO: 3531 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3532 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3533 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3534 break; 3535 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3536 link_speed = LPFC_LINK_SPEED_1GHZ; 3537 break; 3538 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3539 link_speed = LPFC_LINK_SPEED_10GHZ; 3540 break; 3541 default: 3542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3543 "0483 Invalid link-attention link speed: x%x\n", 3544 bf_get(lpfc_acqe_link_speed, acqe_link)); 3545 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3546 break; 3547 } 3548 return link_speed; 3549 } 3550 3551 /** 3552 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 3553 * @phba: pointer to lpfc hba data structure. 3554 * 3555 * This routine is to get an SLI3 FC port's link speed in Mbps. 3556 * 3557 * Return: link speed in terms of Mbps. 3558 **/ 3559 uint32_t 3560 lpfc_sli_port_speed_get(struct lpfc_hba *phba) 3561 { 3562 uint32_t link_speed; 3563 3564 if (!lpfc_is_link_up(phba)) 3565 return 0; 3566 3567 switch (phba->fc_linkspeed) { 3568 case LPFC_LINK_SPEED_1GHZ: 3569 link_speed = 1000; 3570 break; 3571 case LPFC_LINK_SPEED_2GHZ: 3572 link_speed = 2000; 3573 break; 3574 case LPFC_LINK_SPEED_4GHZ: 3575 link_speed = 4000; 3576 break; 3577 case LPFC_LINK_SPEED_8GHZ: 3578 link_speed = 8000; 3579 break; 3580 case LPFC_LINK_SPEED_10GHZ: 3581 link_speed = 10000; 3582 break; 3583 case LPFC_LINK_SPEED_16GHZ: 3584 link_speed = 16000; 3585 break; 3586 default: 3587 link_speed = 0; 3588 } 3589 return link_speed; 3590 } 3591 3592 /** 3593 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 3594 * @phba: pointer to lpfc hba data structure. 3595 * @evt_code: asynchronous event code. 3596 * @speed_code: asynchronous event link speed code. 3597 * 3598 * This routine is to parse the giving SLI4 async event link speed code into 3599 * value of Mbps for the link speed. 3600 * 3601 * Return: link speed in terms of Mbps. 3602 **/ 3603 static uint32_t 3604 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 3605 uint8_t speed_code) 3606 { 3607 uint32_t port_speed; 3608 3609 switch (evt_code) { 3610 case LPFC_TRAILER_CODE_LINK: 3611 switch (speed_code) { 3612 case LPFC_EVT_CODE_LINK_NO_LINK: 3613 port_speed = 0; 3614 break; 3615 case LPFC_EVT_CODE_LINK_10_MBIT: 3616 port_speed = 10; 3617 break; 3618 case LPFC_EVT_CODE_LINK_100_MBIT: 3619 port_speed = 100; 3620 break; 3621 case LPFC_EVT_CODE_LINK_1_GBIT: 3622 port_speed = 1000; 3623 break; 3624 case LPFC_EVT_CODE_LINK_10_GBIT: 3625 port_speed = 10000; 3626 break; 3627 default: 3628 port_speed = 0; 3629 } 3630 break; 3631 case LPFC_TRAILER_CODE_FC: 3632 switch (speed_code) { 3633 case LPFC_EVT_CODE_FC_NO_LINK: 3634 port_speed = 0; 3635 break; 3636 case LPFC_EVT_CODE_FC_1_GBAUD: 3637 port_speed = 1000; 3638 break; 3639 case LPFC_EVT_CODE_FC_2_GBAUD: 3640 port_speed = 2000; 3641 break; 3642 case LPFC_EVT_CODE_FC_4_GBAUD: 3643 port_speed = 4000; 3644 break; 3645 case LPFC_EVT_CODE_FC_8_GBAUD: 3646 port_speed = 8000; 3647 break; 3648 case LPFC_EVT_CODE_FC_10_GBAUD: 3649 port_speed = 10000; 3650 break; 3651 case LPFC_EVT_CODE_FC_16_GBAUD: 3652 port_speed = 16000; 3653 break; 3654 default: 3655 port_speed = 0; 3656 } 3657 break; 3658 default: 3659 port_speed = 0; 3660 } 3661 return port_speed; 3662 } 3663 3664 /** 3665 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 3666 * @phba: pointer to lpfc hba data structure. 3667 * @acqe_link: pointer to the async link completion queue entry. 3668 * 3669 * This routine is to handle the SLI4 asynchronous FCoE link event. 3670 **/ 3671 static void 3672 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3673 struct lpfc_acqe_link *acqe_link) 3674 { 3675 struct lpfc_dmabuf *mp; 3676 LPFC_MBOXQ_t *pmb; 3677 MAILBOX_t *mb; 3678 struct lpfc_mbx_read_top *la; 3679 uint8_t att_type; 3680 int rc; 3681 3682 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3683 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 3684 return; 3685 phba->fcoe_eventtag = acqe_link->event_tag; 3686 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3687 if (!pmb) { 3688 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3689 "0395 The mboxq allocation failed\n"); 3690 return; 3691 } 3692 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3693 if (!mp) { 3694 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3695 "0396 The lpfc_dmabuf allocation failed\n"); 3696 goto out_free_pmb; 3697 } 3698 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3699 if (!mp->virt) { 3700 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3701 "0397 The mbuf allocation failed\n"); 3702 goto out_free_dmabuf; 3703 } 3704 3705 /* Cleanup any outstanding ELS commands */ 3706 lpfc_els_flush_all_cmd(phba); 3707 3708 /* Block ELS IOCBs until we have done process link event */ 3709 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3710 3711 /* Update link event statistics */ 3712 phba->sli.slistat.link_event++; 3713 3714 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3715 lpfc_read_topology(phba, pmb, mp); 3716 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3717 pmb->vport = phba->pport; 3718 3719 /* Keep the link status for extra SLI4 state machine reference */ 3720 phba->sli4_hba.link_state.speed = 3721 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 3722 bf_get(lpfc_acqe_link_speed, acqe_link)); 3723 phba->sli4_hba.link_state.duplex = 3724 bf_get(lpfc_acqe_link_duplex, acqe_link); 3725 phba->sli4_hba.link_state.status = 3726 bf_get(lpfc_acqe_link_status, acqe_link); 3727 phba->sli4_hba.link_state.type = 3728 bf_get(lpfc_acqe_link_type, acqe_link); 3729 phba->sli4_hba.link_state.number = 3730 bf_get(lpfc_acqe_link_number, acqe_link); 3731 phba->sli4_hba.link_state.fault = 3732 bf_get(lpfc_acqe_link_fault, acqe_link); 3733 phba->sli4_hba.link_state.logical_speed = 3734 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 3735 3736 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3737 "2900 Async FC/FCoE Link event - Speed:%dGBit " 3738 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 3739 "Logical speed:%dMbps Fault:%d\n", 3740 phba->sli4_hba.link_state.speed, 3741 phba->sli4_hba.link_state.topology, 3742 phba->sli4_hba.link_state.status, 3743 phba->sli4_hba.link_state.type, 3744 phba->sli4_hba.link_state.number, 3745 phba->sli4_hba.link_state.logical_speed, 3746 phba->sli4_hba.link_state.fault); 3747 /* 3748 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 3749 * topology info. Note: Optional for non FC-AL ports. 3750 */ 3751 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3752 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3753 if (rc == MBX_NOT_FINISHED) 3754 goto out_free_dmabuf; 3755 return; 3756 } 3757 /* 3758 * For FCoE Mode: fill in all the topology information we need and call 3759 * the READ_TOPOLOGY completion routine to continue without actually 3760 * sending the READ_TOPOLOGY mailbox command to the port. 3761 */ 3762 /* Parse and translate status field */ 3763 mb = &pmb->u.mb; 3764 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3765 3766 /* Parse and translate link attention fields */ 3767 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3768 la->eventTag = acqe_link->event_tag; 3769 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 3770 bf_set(lpfc_mbx_read_top_link_spd, la, 3771 lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); 3772 3773 /* Fake the the following irrelvant fields */ 3774 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 3775 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 3776 bf_set(lpfc_mbx_read_top_il, la, 0); 3777 bf_set(lpfc_mbx_read_top_pb, la, 0); 3778 bf_set(lpfc_mbx_read_top_fa, la, 0); 3779 bf_set(lpfc_mbx_read_top_mm, la, 0); 3780 3781 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3782 lpfc_mbx_cmpl_read_topology(phba, pmb); 3783 3784 return; 3785 3786 out_free_dmabuf: 3787 kfree(mp); 3788 out_free_pmb: 3789 mempool_free(pmb, phba->mbox_mem_pool); 3790 } 3791 3792 /** 3793 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 3794 * @phba: pointer to lpfc hba data structure. 3795 * @acqe_fc: pointer to the async fc completion queue entry. 3796 * 3797 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 3798 * that the event was received and then issue a read_topology mailbox command so 3799 * that the rest of the driver will treat it the same as SLI3. 3800 **/ 3801 static void 3802 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 3803 { 3804 struct lpfc_dmabuf *mp; 3805 LPFC_MBOXQ_t *pmb; 3806 int rc; 3807 3808 if (bf_get(lpfc_trailer_type, acqe_fc) != 3809 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 3810 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3811 "2895 Non FC link Event detected.(%d)\n", 3812 bf_get(lpfc_trailer_type, acqe_fc)); 3813 return; 3814 } 3815 /* Keep the link status for extra SLI4 state machine reference */ 3816 phba->sli4_hba.link_state.speed = 3817 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 3818 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 3819 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 3820 phba->sli4_hba.link_state.topology = 3821 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 3822 phba->sli4_hba.link_state.status = 3823 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 3824 phba->sli4_hba.link_state.type = 3825 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 3826 phba->sli4_hba.link_state.number = 3827 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 3828 phba->sli4_hba.link_state.fault = 3829 bf_get(lpfc_acqe_link_fault, acqe_fc); 3830 phba->sli4_hba.link_state.logical_speed = 3831 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 3832 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3833 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 3834 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 3835 "%dMbps Fault:%d\n", 3836 phba->sli4_hba.link_state.speed, 3837 phba->sli4_hba.link_state.topology, 3838 phba->sli4_hba.link_state.status, 3839 phba->sli4_hba.link_state.type, 3840 phba->sli4_hba.link_state.number, 3841 phba->sli4_hba.link_state.logical_speed, 3842 phba->sli4_hba.link_state.fault); 3843 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3844 if (!pmb) { 3845 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3846 "2897 The mboxq allocation failed\n"); 3847 return; 3848 } 3849 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3850 if (!mp) { 3851 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3852 "2898 The lpfc_dmabuf allocation failed\n"); 3853 goto out_free_pmb; 3854 } 3855 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3856 if (!mp->virt) { 3857 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3858 "2899 The mbuf allocation failed\n"); 3859 goto out_free_dmabuf; 3860 } 3861 3862 /* Cleanup any outstanding ELS commands */ 3863 lpfc_els_flush_all_cmd(phba); 3864 3865 /* Block ELS IOCBs until we have done process link event */ 3866 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3867 3868 /* Update link event statistics */ 3869 phba->sli.slistat.link_event++; 3870 3871 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3872 lpfc_read_topology(phba, pmb, mp); 3873 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3874 pmb->vport = phba->pport; 3875 3876 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3877 if (rc == MBX_NOT_FINISHED) 3878 goto out_free_dmabuf; 3879 return; 3880 3881 out_free_dmabuf: 3882 kfree(mp); 3883 out_free_pmb: 3884 mempool_free(pmb, phba->mbox_mem_pool); 3885 } 3886 3887 /** 3888 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 3889 * @phba: pointer to lpfc hba data structure. 3890 * @acqe_fc: pointer to the async SLI completion queue entry. 3891 * 3892 * This routine is to handle the SLI4 asynchronous SLI events. 3893 **/ 3894 static void 3895 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 3896 { 3897 char port_name; 3898 char message[128]; 3899 uint8_t status; 3900 struct lpfc_acqe_misconfigured_event *misconfigured; 3901 3902 /* special case misconfigured event as it contains data for all ports */ 3903 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 3904 LPFC_SLI_INTF_IF_TYPE_2) || 3905 (bf_get(lpfc_trailer_type, acqe_sli) != 3906 LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) { 3907 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3908 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 3909 "x%08x SLI Event Type:%d\n", 3910 acqe_sli->event_data1, acqe_sli->event_data2, 3911 bf_get(lpfc_trailer_type, acqe_sli)); 3912 return; 3913 } 3914 3915 port_name = phba->Port[0]; 3916 if (port_name == 0x00) 3917 port_name = '?'; /* get port name is empty */ 3918 3919 misconfigured = (struct lpfc_acqe_misconfigured_event *) 3920 &acqe_sli->event_data1; 3921 3922 /* fetch the status for this port */ 3923 switch (phba->sli4_hba.lnk_info.lnk_no) { 3924 case LPFC_LINK_NUMBER_0: 3925 status = bf_get(lpfc_sli_misconfigured_port0, 3926 &misconfigured->theEvent); 3927 break; 3928 case LPFC_LINK_NUMBER_1: 3929 status = bf_get(lpfc_sli_misconfigured_port1, 3930 &misconfigured->theEvent); 3931 break; 3932 case LPFC_LINK_NUMBER_2: 3933 status = bf_get(lpfc_sli_misconfigured_port2, 3934 &misconfigured->theEvent); 3935 break; 3936 case LPFC_LINK_NUMBER_3: 3937 status = bf_get(lpfc_sli_misconfigured_port3, 3938 &misconfigured->theEvent); 3939 break; 3940 default: 3941 status = ~LPFC_SLI_EVENT_STATUS_VALID; 3942 break; 3943 } 3944 3945 switch (status) { 3946 case LPFC_SLI_EVENT_STATUS_VALID: 3947 return; /* no message if the sfp is okay */ 3948 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 3949 sprintf(message, "Optics faulted/incorrectly installed/not " \ 3950 "installed - Reseat optics, if issue not " 3951 "resolved, replace."); 3952 break; 3953 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 3954 sprintf(message, 3955 "Optics of two types installed - Remove one optic or " \ 3956 "install matching pair of optics."); 3957 break; 3958 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 3959 sprintf(message, "Incompatible optics - Replace with " \ 3960 "compatible optics for card to function."); 3961 break; 3962 default: 3963 /* firmware is reporting a status we don't know about */ 3964 sprintf(message, "Unknown event status x%02x", status); 3965 break; 3966 } 3967 3968 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3969 "3176 Misconfigured Physical Port - " 3970 "Port Name %c %s\n", port_name, message); 3971 } 3972 3973 /** 3974 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3975 * @vport: pointer to vport data structure. 3976 * 3977 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3978 * response to a CVL event. 3979 * 3980 * Return the pointer to the ndlp with the vport if successful, otherwise 3981 * return NULL. 3982 **/ 3983 static struct lpfc_nodelist * 3984 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3985 { 3986 struct lpfc_nodelist *ndlp; 3987 struct Scsi_Host *shost; 3988 struct lpfc_hba *phba; 3989 3990 if (!vport) 3991 return NULL; 3992 phba = vport->phba; 3993 if (!phba) 3994 return NULL; 3995 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3996 if (!ndlp) { 3997 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3998 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3999 if (!ndlp) 4000 return 0; 4001 lpfc_nlp_init(vport, ndlp, Fabric_DID); 4002 /* Set the node type */ 4003 ndlp->nlp_type |= NLP_FABRIC; 4004 /* Put ndlp onto node list */ 4005 lpfc_enqueue_node(vport, ndlp); 4006 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4007 /* re-setup ndlp without removing from node list */ 4008 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 4009 if (!ndlp) 4010 return 0; 4011 } 4012 if ((phba->pport->port_state < LPFC_FLOGI) && 4013 (phba->pport->port_state != LPFC_VPORT_FAILED)) 4014 return NULL; 4015 /* If virtual link is not yet instantiated ignore CVL */ 4016 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 4017 && (vport->port_state != LPFC_VPORT_FAILED)) 4018 return NULL; 4019 shost = lpfc_shost_from_vport(vport); 4020 if (!shost) 4021 return NULL; 4022 lpfc_linkdown_port(vport); 4023 lpfc_cleanup_pending_mbox(vport); 4024 spin_lock_irq(shost->host_lock); 4025 vport->fc_flag |= FC_VPORT_CVL_RCVD; 4026 spin_unlock_irq(shost->host_lock); 4027 4028 return ndlp; 4029 } 4030 4031 /** 4032 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 4033 * @vport: pointer to lpfc hba data structure. 4034 * 4035 * This routine is to perform Clear Virtual Link (CVL) on all vports in 4036 * response to a FCF dead event. 4037 **/ 4038 static void 4039 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 4040 { 4041 struct lpfc_vport **vports; 4042 int i; 4043 4044 vports = lpfc_create_vport_work_array(phba); 4045 if (vports) 4046 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 4047 lpfc_sli4_perform_vport_cvl(vports[i]); 4048 lpfc_destroy_vport_work_array(phba, vports); 4049 } 4050 4051 /** 4052 * lpfc_sli4_perform_inuse_fcf_recovery - Perform inuse fcf recovery 4053 * @vport: pointer to lpfc hba data structure. 4054 * 4055 * This routine is to perform FCF recovery when the in-use FCF either dead or 4056 * got modified. 4057 **/ 4058 static void 4059 lpfc_sli4_perform_inuse_fcf_recovery(struct lpfc_hba *phba, 4060 struct lpfc_acqe_fip *acqe_fip) 4061 { 4062 int rc; 4063 4064 spin_lock_irq(&phba->hbalock); 4065 /* Mark the fast failover process in progress */ 4066 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 4067 spin_unlock_irq(&phba->hbalock); 4068 4069 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4070 "2771 Start FCF fast failover process due to in-use " 4071 "FCF DEAD/MODIFIED event: evt_tag:x%x, index:x%x\n", 4072 acqe_fip->event_tag, acqe_fip->index); 4073 rc = lpfc_sli4_redisc_fcf_table(phba); 4074 if (rc) { 4075 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4076 "2772 Issue FCF rediscover mabilbox command " 4077 "failed, fail through to FCF dead event\n"); 4078 spin_lock_irq(&phba->hbalock); 4079 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 4080 spin_unlock_irq(&phba->hbalock); 4081 /* 4082 * Last resort will fail over by treating this as a link 4083 * down to FCF registration. 4084 */ 4085 lpfc_sli4_fcf_dead_failthrough(phba); 4086 } else { 4087 /* Reset FCF roundrobin bmask for new discovery */ 4088 lpfc_sli4_clear_fcf_rr_bmask(phba); 4089 /* 4090 * Handling fast FCF failover to a DEAD FCF event is 4091 * considered equalivant to receiving CVL to all vports. 4092 */ 4093 lpfc_sli4_perform_all_vport_cvl(phba); 4094 } 4095 } 4096 4097 /** 4098 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 4099 * @phba: pointer to lpfc hba data structure. 4100 * @acqe_link: pointer to the async fcoe completion queue entry. 4101 * 4102 * This routine is to handle the SLI4 asynchronous fcoe event. 4103 **/ 4104 static void 4105 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 4106 struct lpfc_acqe_fip *acqe_fip) 4107 { 4108 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 4109 int rc; 4110 struct lpfc_vport *vport; 4111 struct lpfc_nodelist *ndlp; 4112 struct Scsi_Host *shost; 4113 int active_vlink_present; 4114 struct lpfc_vport **vports; 4115 int i; 4116 4117 phba->fc_eventTag = acqe_fip->event_tag; 4118 phba->fcoe_eventtag = acqe_fip->event_tag; 4119 switch (event_type) { 4120 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 4121 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 4122 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 4123 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4124 LOG_DISCOVERY, 4125 "2546 New FCF event, evt_tag:x%x, " 4126 "index:x%x\n", 4127 acqe_fip->event_tag, 4128 acqe_fip->index); 4129 else 4130 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 4131 LOG_DISCOVERY, 4132 "2788 FCF param modified event, " 4133 "evt_tag:x%x, index:x%x\n", 4134 acqe_fip->event_tag, 4135 acqe_fip->index); 4136 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4137 /* 4138 * During period of FCF discovery, read the FCF 4139 * table record indexed by the event to update 4140 * FCF roundrobin failover eligible FCF bmask. 4141 */ 4142 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4143 LOG_DISCOVERY, 4144 "2779 Read FCF (x%x) for updating " 4145 "roundrobin FCF failover bmask\n", 4146 acqe_fip->index); 4147 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 4148 } 4149 4150 /* If the FCF discovery is in progress, do nothing. */ 4151 spin_lock_irq(&phba->hbalock); 4152 if (phba->hba_flag & FCF_TS_INPROG) { 4153 spin_unlock_irq(&phba->hbalock); 4154 break; 4155 } 4156 /* If fast FCF failover rescan event is pending, do nothing */ 4157 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 4158 spin_unlock_irq(&phba->hbalock); 4159 break; 4160 } 4161 4162 /* If FCF has been in discovered state, perform rediscovery 4163 * only if the FCF with the same index of the in-use FCF got 4164 * modified during normal operation. Otherwise, do nothing. 4165 */ 4166 if (phba->pport->port_state > LPFC_FLOGI) { 4167 spin_unlock_irq(&phba->hbalock); 4168 if (phba->fcf.current_rec.fcf_indx == 4169 acqe_fip->index) { 4170 lpfc_printf_log(phba, KERN_ERR, LOG_FIP, 4171 "3300 In-use FCF (%d) " 4172 "modified, perform FCF " 4173 "rediscovery\n", 4174 acqe_fip->index); 4175 lpfc_sli4_perform_inuse_fcf_recovery(phba, 4176 acqe_fip); 4177 } 4178 break; 4179 } 4180 spin_unlock_irq(&phba->hbalock); 4181 4182 /* Otherwise, scan the entire FCF table and re-discover SAN */ 4183 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4184 "2770 Start FCF table scan per async FCF " 4185 "event, evt_tag:x%x, index:x%x\n", 4186 acqe_fip->event_tag, acqe_fip->index); 4187 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 4188 LPFC_FCOE_FCF_GET_FIRST); 4189 if (rc) 4190 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4191 "2547 Issue FCF scan read FCF mailbox " 4192 "command failed (x%x)\n", rc); 4193 break; 4194 4195 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 4196 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4197 "2548 FCF Table full count 0x%x tag 0x%x\n", 4198 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 4199 acqe_fip->event_tag); 4200 break; 4201 4202 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 4203 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4204 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4205 "2549 FCF (x%x) disconnected from network, " 4206 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 4207 /* 4208 * If we are in the middle of FCF failover process, clear 4209 * the corresponding FCF bit in the roundrobin bitmap. 4210 */ 4211 spin_lock_irq(&phba->hbalock); 4212 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4213 spin_unlock_irq(&phba->hbalock); 4214 /* Update FLOGI FCF failover eligible FCF bmask */ 4215 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 4216 break; 4217 } 4218 spin_unlock_irq(&phba->hbalock); 4219 4220 /* If the event is not for currently used fcf do nothing */ 4221 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 4222 break; 4223 4224 /* 4225 * Otherwise, request the port to rediscover the entire FCF 4226 * table for a fast recovery from case that the current FCF 4227 * is no longer valid as we are not in the middle of FCF 4228 * failover process already. 4229 */ 4230 lpfc_sli4_perform_inuse_fcf_recovery(phba, acqe_fip); 4231 break; 4232 case LPFC_FIP_EVENT_TYPE_CVL: 4233 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4234 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4235 "2718 Clear Virtual Link Received for VPI 0x%x" 4236 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 4237 4238 vport = lpfc_find_vport_by_vpid(phba, 4239 acqe_fip->index); 4240 ndlp = lpfc_sli4_perform_vport_cvl(vport); 4241 if (!ndlp) 4242 break; 4243 active_vlink_present = 0; 4244 4245 vports = lpfc_create_vport_work_array(phba); 4246 if (vports) { 4247 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 4248 i++) { 4249 if ((!(vports[i]->fc_flag & 4250 FC_VPORT_CVL_RCVD)) && 4251 (vports[i]->port_state > LPFC_FDISC)) { 4252 active_vlink_present = 1; 4253 break; 4254 } 4255 } 4256 lpfc_destroy_vport_work_array(phba, vports); 4257 } 4258 4259 if (active_vlink_present) { 4260 /* 4261 * If there are other active VLinks present, 4262 * re-instantiate the Vlink using FDISC. 4263 */ 4264 mod_timer(&ndlp->nlp_delayfunc, 4265 jiffies + msecs_to_jiffies(1000)); 4266 shost = lpfc_shost_from_vport(vport); 4267 spin_lock_irq(shost->host_lock); 4268 ndlp->nlp_flag |= NLP_DELAY_TMO; 4269 spin_unlock_irq(shost->host_lock); 4270 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 4271 vport->port_state = LPFC_FDISC; 4272 } else { 4273 /* 4274 * Otherwise, we request port to rediscover 4275 * the entire FCF table for a fast recovery 4276 * from possible case that the current FCF 4277 * is no longer valid if we are not already 4278 * in the FCF failover process. 4279 */ 4280 spin_lock_irq(&phba->hbalock); 4281 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4282 spin_unlock_irq(&phba->hbalock); 4283 break; 4284 } 4285 /* Mark the fast failover process in progress */ 4286 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 4287 spin_unlock_irq(&phba->hbalock); 4288 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4289 LOG_DISCOVERY, 4290 "2773 Start FCF failover per CVL, " 4291 "evt_tag:x%x\n", acqe_fip->event_tag); 4292 rc = lpfc_sli4_redisc_fcf_table(phba); 4293 if (rc) { 4294 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4295 LOG_DISCOVERY, 4296 "2774 Issue FCF rediscover " 4297 "mabilbox command failed, " 4298 "through to CVL event\n"); 4299 spin_lock_irq(&phba->hbalock); 4300 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 4301 spin_unlock_irq(&phba->hbalock); 4302 /* 4303 * Last resort will be re-try on the 4304 * the current registered FCF entry. 4305 */ 4306 lpfc_retry_pport_discovery(phba); 4307 } else 4308 /* 4309 * Reset FCF roundrobin bmask for new 4310 * discovery. 4311 */ 4312 lpfc_sli4_clear_fcf_rr_bmask(phba); 4313 } 4314 break; 4315 default: 4316 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4317 "0288 Unknown FCoE event type 0x%x event tag " 4318 "0x%x\n", event_type, acqe_fip->event_tag); 4319 break; 4320 } 4321 } 4322 4323 /** 4324 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 4325 * @phba: pointer to lpfc hba data structure. 4326 * @acqe_link: pointer to the async dcbx completion queue entry. 4327 * 4328 * This routine is to handle the SLI4 asynchronous dcbx event. 4329 **/ 4330 static void 4331 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 4332 struct lpfc_acqe_dcbx *acqe_dcbx) 4333 { 4334 phba->fc_eventTag = acqe_dcbx->event_tag; 4335 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4336 "0290 The SLI4 DCBX asynchronous event is not " 4337 "handled yet\n"); 4338 } 4339 4340 /** 4341 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 4342 * @phba: pointer to lpfc hba data structure. 4343 * @acqe_link: pointer to the async grp5 completion queue entry. 4344 * 4345 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 4346 * is an asynchronous notified of a logical link speed change. The Port 4347 * reports the logical link speed in units of 10Mbps. 4348 **/ 4349 static void 4350 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 4351 struct lpfc_acqe_grp5 *acqe_grp5) 4352 { 4353 uint16_t prev_ll_spd; 4354 4355 phba->fc_eventTag = acqe_grp5->event_tag; 4356 phba->fcoe_eventtag = acqe_grp5->event_tag; 4357 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 4358 phba->sli4_hba.link_state.logical_speed = 4359 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 4360 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4361 "2789 GRP5 Async Event: Updating logical link speed " 4362 "from %dMbps to %dMbps\n", prev_ll_spd, 4363 phba->sli4_hba.link_state.logical_speed); 4364 } 4365 4366 /** 4367 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 4368 * @phba: pointer to lpfc hba data structure. 4369 * 4370 * This routine is invoked by the worker thread to process all the pending 4371 * SLI4 asynchronous events. 4372 **/ 4373 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 4374 { 4375 struct lpfc_cq_event *cq_event; 4376 4377 /* First, declare the async event has been handled */ 4378 spin_lock_irq(&phba->hbalock); 4379 phba->hba_flag &= ~ASYNC_EVENT; 4380 spin_unlock_irq(&phba->hbalock); 4381 /* Now, handle all the async events */ 4382 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 4383 /* Get the first event from the head of the event queue */ 4384 spin_lock_irq(&phba->hbalock); 4385 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 4386 cq_event, struct lpfc_cq_event, list); 4387 spin_unlock_irq(&phba->hbalock); 4388 /* Process the asynchronous event */ 4389 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 4390 case LPFC_TRAILER_CODE_LINK: 4391 lpfc_sli4_async_link_evt(phba, 4392 &cq_event->cqe.acqe_link); 4393 break; 4394 case LPFC_TRAILER_CODE_FCOE: 4395 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 4396 break; 4397 case LPFC_TRAILER_CODE_DCBX: 4398 lpfc_sli4_async_dcbx_evt(phba, 4399 &cq_event->cqe.acqe_dcbx); 4400 break; 4401 case LPFC_TRAILER_CODE_GRP5: 4402 lpfc_sli4_async_grp5_evt(phba, 4403 &cq_event->cqe.acqe_grp5); 4404 break; 4405 case LPFC_TRAILER_CODE_FC: 4406 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 4407 break; 4408 case LPFC_TRAILER_CODE_SLI: 4409 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 4410 break; 4411 default: 4412 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4413 "1804 Invalid asynchrous event code: " 4414 "x%x\n", bf_get(lpfc_trailer_code, 4415 &cq_event->cqe.mcqe_cmpl)); 4416 break; 4417 } 4418 /* Free the completion event processed to the free pool */ 4419 lpfc_sli4_cq_event_release(phba, cq_event); 4420 } 4421 } 4422 4423 /** 4424 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 4425 * @phba: pointer to lpfc hba data structure. 4426 * 4427 * This routine is invoked by the worker thread to process FCF table 4428 * rediscovery pending completion event. 4429 **/ 4430 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 4431 { 4432 int rc; 4433 4434 spin_lock_irq(&phba->hbalock); 4435 /* Clear FCF rediscovery timeout event */ 4436 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 4437 /* Clear driver fast failover FCF record flag */ 4438 phba->fcf.failover_rec.flag = 0; 4439 /* Set state for FCF fast failover */ 4440 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 4441 spin_unlock_irq(&phba->hbalock); 4442 4443 /* Scan FCF table from the first entry to re-discover SAN */ 4444 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4445 "2777 Start post-quiescent FCF table scan\n"); 4446 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 4447 if (rc) 4448 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4449 "2747 Issue FCF scan read FCF mailbox " 4450 "command failed 0x%x\n", rc); 4451 } 4452 4453 /** 4454 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 4455 * @phba: pointer to lpfc hba data structure. 4456 * @dev_grp: The HBA PCI-Device group number. 4457 * 4458 * This routine is invoked to set up the per HBA PCI-Device group function 4459 * API jump table entries. 4460 * 4461 * Return: 0 if success, otherwise -ENODEV 4462 **/ 4463 int 4464 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4465 { 4466 int rc; 4467 4468 /* Set up lpfc PCI-device group */ 4469 phba->pci_dev_grp = dev_grp; 4470 4471 /* The LPFC_PCI_DEV_OC uses SLI4 */ 4472 if (dev_grp == LPFC_PCI_DEV_OC) 4473 phba->sli_rev = LPFC_SLI_REV4; 4474 4475 /* Set up device INIT API function jump table */ 4476 rc = lpfc_init_api_table_setup(phba, dev_grp); 4477 if (rc) 4478 return -ENODEV; 4479 /* Set up SCSI API function jump table */ 4480 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 4481 if (rc) 4482 return -ENODEV; 4483 /* Set up SLI API function jump table */ 4484 rc = lpfc_sli_api_table_setup(phba, dev_grp); 4485 if (rc) 4486 return -ENODEV; 4487 /* Set up MBOX API function jump table */ 4488 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 4489 if (rc) 4490 return -ENODEV; 4491 4492 return 0; 4493 } 4494 4495 /** 4496 * lpfc_log_intr_mode - Log the active interrupt mode 4497 * @phba: pointer to lpfc hba data structure. 4498 * @intr_mode: active interrupt mode adopted. 4499 * 4500 * This routine it invoked to log the currently used active interrupt mode 4501 * to the device. 4502 **/ 4503 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 4504 { 4505 switch (intr_mode) { 4506 case 0: 4507 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4508 "0470 Enable INTx interrupt mode.\n"); 4509 break; 4510 case 1: 4511 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4512 "0481 Enabled MSI interrupt mode.\n"); 4513 break; 4514 case 2: 4515 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4516 "0480 Enabled MSI-X interrupt mode.\n"); 4517 break; 4518 default: 4519 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4520 "0482 Illegal interrupt mode.\n"); 4521 break; 4522 } 4523 return; 4524 } 4525 4526 /** 4527 * lpfc_enable_pci_dev - Enable a generic PCI device. 4528 * @phba: pointer to lpfc hba data structure. 4529 * 4530 * This routine is invoked to enable the PCI device that is common to all 4531 * PCI devices. 4532 * 4533 * Return codes 4534 * 0 - successful 4535 * other values - error 4536 **/ 4537 static int 4538 lpfc_enable_pci_dev(struct lpfc_hba *phba) 4539 { 4540 struct pci_dev *pdev; 4541 int bars = 0; 4542 4543 /* Obtain PCI device reference */ 4544 if (!phba->pcidev) 4545 goto out_error; 4546 else 4547 pdev = phba->pcidev; 4548 /* Select PCI BARs */ 4549 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4550 /* Enable PCI device */ 4551 if (pci_enable_device_mem(pdev)) 4552 goto out_error; 4553 /* Request PCI resource for the device */ 4554 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 4555 goto out_disable_device; 4556 /* Set up device as PCI master and save state for EEH */ 4557 pci_set_master(pdev); 4558 pci_try_set_mwi(pdev); 4559 pci_save_state(pdev); 4560 4561 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 4562 if (pci_find_capability(pdev, PCI_CAP_ID_EXP)) 4563 pdev->needs_freset = 1; 4564 4565 return 0; 4566 4567 out_disable_device: 4568 pci_disable_device(pdev); 4569 out_error: 4570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4571 "1401 Failed to enable pci device, bars:x%x\n", bars); 4572 return -ENODEV; 4573 } 4574 4575 /** 4576 * lpfc_disable_pci_dev - Disable a generic PCI device. 4577 * @phba: pointer to lpfc hba data structure. 4578 * 4579 * This routine is invoked to disable the PCI device that is common to all 4580 * PCI devices. 4581 **/ 4582 static void 4583 lpfc_disable_pci_dev(struct lpfc_hba *phba) 4584 { 4585 struct pci_dev *pdev; 4586 int bars; 4587 4588 /* Obtain PCI device reference */ 4589 if (!phba->pcidev) 4590 return; 4591 else 4592 pdev = phba->pcidev; 4593 /* Select PCI BARs */ 4594 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4595 /* Release PCI resource and disable PCI device */ 4596 pci_release_selected_regions(pdev, bars); 4597 pci_disable_device(pdev); 4598 /* Null out PCI private reference to driver */ 4599 pci_set_drvdata(pdev, NULL); 4600 4601 return; 4602 } 4603 4604 /** 4605 * lpfc_reset_hba - Reset a hba 4606 * @phba: pointer to lpfc hba data structure. 4607 * 4608 * This routine is invoked to reset a hba device. It brings the HBA 4609 * offline, performs a board restart, and then brings the board back 4610 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 4611 * on outstanding mailbox commands. 4612 **/ 4613 void 4614 lpfc_reset_hba(struct lpfc_hba *phba) 4615 { 4616 /* If resets are disabled then set error state and return. */ 4617 if (!phba->cfg_enable_hba_reset) { 4618 phba->link_state = LPFC_HBA_ERROR; 4619 return; 4620 } 4621 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 4622 lpfc_offline(phba); 4623 lpfc_sli_brdrestart(phba); 4624 lpfc_online(phba); 4625 lpfc_unblock_mgmt_io(phba); 4626 } 4627 4628 /** 4629 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 4630 * @phba: pointer to lpfc hba data structure. 4631 * 4632 * This function enables the PCI SR-IOV virtual functions to a physical 4633 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4634 * enable the number of virtual functions to the physical function. As 4635 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4636 * API call does not considered as an error condition for most of the device. 4637 **/ 4638 uint16_t 4639 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 4640 { 4641 struct pci_dev *pdev = phba->pcidev; 4642 uint16_t nr_virtfn; 4643 int pos; 4644 4645 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 4646 if (pos == 0) 4647 return 0; 4648 4649 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 4650 return nr_virtfn; 4651 } 4652 4653 /** 4654 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 4655 * @phba: pointer to lpfc hba data structure. 4656 * @nr_vfn: number of virtual functions to be enabled. 4657 * 4658 * This function enables the PCI SR-IOV virtual functions to a physical 4659 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4660 * enable the number of virtual functions to the physical function. As 4661 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4662 * API call does not considered as an error condition for most of the device. 4663 **/ 4664 int 4665 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 4666 { 4667 struct pci_dev *pdev = phba->pcidev; 4668 uint16_t max_nr_vfn; 4669 int rc; 4670 4671 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 4672 if (nr_vfn > max_nr_vfn) { 4673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4674 "3057 Requested vfs (%d) greater than " 4675 "supported vfs (%d)", nr_vfn, max_nr_vfn); 4676 return -EINVAL; 4677 } 4678 4679 rc = pci_enable_sriov(pdev, nr_vfn); 4680 if (rc) { 4681 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4682 "2806 Failed to enable sriov on this device " 4683 "with vfn number nr_vf:%d, rc:%d\n", 4684 nr_vfn, rc); 4685 } else 4686 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4687 "2807 Successful enable sriov on this device " 4688 "with vfn number nr_vf:%d\n", nr_vfn); 4689 return rc; 4690 } 4691 4692 /** 4693 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 4694 * @phba: pointer to lpfc hba data structure. 4695 * 4696 * This routine is invoked to set up the driver internal resources specific to 4697 * support the SLI-3 HBA device it attached to. 4698 * 4699 * Return codes 4700 * 0 - successful 4701 * other values - error 4702 **/ 4703 static int 4704 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 4705 { 4706 struct lpfc_sli *psli; 4707 int rc; 4708 4709 /* 4710 * Initialize timers used by driver 4711 */ 4712 4713 /* Heartbeat timer */ 4714 init_timer(&phba->hb_tmofunc); 4715 phba->hb_tmofunc.function = lpfc_hb_timeout; 4716 phba->hb_tmofunc.data = (unsigned long)phba; 4717 4718 psli = &phba->sli; 4719 /* MBOX heartbeat timer */ 4720 init_timer(&psli->mbox_tmo); 4721 psli->mbox_tmo.function = lpfc_mbox_timeout; 4722 psli->mbox_tmo.data = (unsigned long) phba; 4723 /* FCP polling mode timer */ 4724 init_timer(&phba->fcp_poll_timer); 4725 phba->fcp_poll_timer.function = lpfc_poll_timeout; 4726 phba->fcp_poll_timer.data = (unsigned long) phba; 4727 /* Fabric block timer */ 4728 init_timer(&phba->fabric_block_timer); 4729 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4730 phba->fabric_block_timer.data = (unsigned long) phba; 4731 /* EA polling mode timer */ 4732 init_timer(&phba->eratt_poll); 4733 phba->eratt_poll.function = lpfc_poll_eratt; 4734 phba->eratt_poll.data = (unsigned long) phba; 4735 4736 /* Host attention work mask setup */ 4737 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 4738 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 4739 4740 /* Get all the module params for configuring this host */ 4741 lpfc_get_cfgparam(phba); 4742 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 4743 phba->menlo_flag |= HBA_MENLO_SUPPORT; 4744 /* check for menlo minimum sg count */ 4745 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 4746 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 4747 } 4748 4749 if (!phba->sli.ring) 4750 phba->sli.ring = (struct lpfc_sli_ring *) 4751 kzalloc(LPFC_SLI3_MAX_RING * 4752 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 4753 if (!phba->sli.ring) 4754 return -ENOMEM; 4755 4756 /* 4757 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 4758 * used to create the sg_dma_buf_pool must be dynamically calculated. 4759 */ 4760 4761 /* Initialize the host templates the configured values. */ 4762 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4763 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4764 4765 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ 4766 if (phba->cfg_enable_bg) { 4767 /* 4768 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 4769 * the FCP rsp, and a BDE for each. Sice we have no control 4770 * over how many protection data segments the SCSI Layer 4771 * will hand us (ie: there could be one for every block 4772 * in the IO), we just allocate enough BDEs to accomidate 4773 * our max amount and we need to limit lpfc_sg_seg_cnt to 4774 * minimize the risk of running out. 4775 */ 4776 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4777 sizeof(struct fcp_rsp) + 4778 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64)); 4779 4780 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF) 4781 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF; 4782 4783 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */ 4784 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT; 4785 } else { 4786 /* 4787 * The scsi_buf for a regular I/O will hold the FCP cmnd, 4788 * the FCP rsp, a BDE for each, and a BDE for up to 4789 * cfg_sg_seg_cnt data segments. 4790 */ 4791 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4792 sizeof(struct fcp_rsp) + 4793 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 4794 4795 /* Total BDEs in BPL for scsi_sg_list */ 4796 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 4797 } 4798 4799 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 4800 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n", 4801 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 4802 phba->cfg_total_seg_cnt); 4803 4804 phba->max_vpi = LPFC_MAX_VPI; 4805 /* This will be set to correct value after config_port mbox */ 4806 phba->max_vports = 0; 4807 4808 /* 4809 * Initialize the SLI Layer to run with lpfc HBAs. 4810 */ 4811 lpfc_sli_setup(phba); 4812 lpfc_sli_queue_setup(phba); 4813 4814 /* Allocate device driver memory */ 4815 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 4816 return -ENOMEM; 4817 4818 /* 4819 * Enable sr-iov virtual functions if supported and configured 4820 * through the module parameter. 4821 */ 4822 if (phba->cfg_sriov_nr_virtfn > 0) { 4823 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4824 phba->cfg_sriov_nr_virtfn); 4825 if (rc) { 4826 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4827 "2808 Requested number of SR-IOV " 4828 "virtual functions (%d) is not " 4829 "supported\n", 4830 phba->cfg_sriov_nr_virtfn); 4831 phba->cfg_sriov_nr_virtfn = 0; 4832 } 4833 } 4834 4835 return 0; 4836 } 4837 4838 /** 4839 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 4840 * @phba: pointer to lpfc hba data structure. 4841 * 4842 * This routine is invoked to unset the driver internal resources set up 4843 * specific for supporting the SLI-3 HBA device it attached to. 4844 **/ 4845 static void 4846 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 4847 { 4848 /* Free device driver memory allocated */ 4849 lpfc_mem_free_all(phba); 4850 4851 return; 4852 } 4853 4854 /** 4855 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 4856 * @phba: pointer to lpfc hba data structure. 4857 * 4858 * This routine is invoked to set up the driver internal resources specific to 4859 * support the SLI-4 HBA device it attached to. 4860 * 4861 * Return codes 4862 * 0 - successful 4863 * other values - error 4864 **/ 4865 static int 4866 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 4867 { 4868 struct lpfc_vector_map_info *cpup; 4869 struct lpfc_sli *psli; 4870 LPFC_MBOXQ_t *mboxq; 4871 int rc, i, hbq_count, max_buf_size; 4872 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 4873 struct lpfc_mqe *mqe; 4874 int longs; 4875 4876 /* Before proceed, wait for POST done and device ready */ 4877 rc = lpfc_sli4_post_status_check(phba); 4878 if (rc) 4879 return -ENODEV; 4880 4881 /* 4882 * Initialize timers used by driver 4883 */ 4884 4885 /* Heartbeat timer */ 4886 init_timer(&phba->hb_tmofunc); 4887 phba->hb_tmofunc.function = lpfc_hb_timeout; 4888 phba->hb_tmofunc.data = (unsigned long)phba; 4889 init_timer(&phba->rrq_tmr); 4890 phba->rrq_tmr.function = lpfc_rrq_timeout; 4891 phba->rrq_tmr.data = (unsigned long)phba; 4892 4893 psli = &phba->sli; 4894 /* MBOX heartbeat timer */ 4895 init_timer(&psli->mbox_tmo); 4896 psli->mbox_tmo.function = lpfc_mbox_timeout; 4897 psli->mbox_tmo.data = (unsigned long) phba; 4898 /* Fabric block timer */ 4899 init_timer(&phba->fabric_block_timer); 4900 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4901 phba->fabric_block_timer.data = (unsigned long) phba; 4902 /* EA polling mode timer */ 4903 init_timer(&phba->eratt_poll); 4904 phba->eratt_poll.function = lpfc_poll_eratt; 4905 phba->eratt_poll.data = (unsigned long) phba; 4906 /* FCF rediscover timer */ 4907 init_timer(&phba->fcf.redisc_wait); 4908 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4909 phba->fcf.redisc_wait.data = (unsigned long)phba; 4910 4911 /* 4912 * Control structure for handling external multi-buffer mailbox 4913 * command pass-through. 4914 */ 4915 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 4916 sizeof(struct lpfc_mbox_ext_buf_ctx)); 4917 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 4918 4919 /* 4920 * We need to do a READ_CONFIG mailbox command here before 4921 * calling lpfc_get_cfgparam. For VFs this will report the 4922 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 4923 * All of the resources allocated 4924 * for this Port are tied to these values. 4925 */ 4926 /* Get all the module params for configuring this host */ 4927 lpfc_get_cfgparam(phba); 4928 phba->max_vpi = LPFC_MAX_VPI; 4929 4930 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */ 4931 phba->cfg_fcp_io_channel = phba->cfg_fcp_eq_count; 4932 4933 /* This will be set to correct value after the read_config mbox */ 4934 phba->max_vports = 0; 4935 4936 /* Program the default value of vlan_id and fc_map */ 4937 phba->valid_vlan = 0; 4938 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4939 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4940 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4941 4942 /* 4943 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 4944 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple. 4945 */ 4946 if (!phba->sli.ring) 4947 phba->sli.ring = kzalloc( 4948 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) * 4949 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 4950 if (!phba->sli.ring) 4951 return -ENOMEM; 4952 4953 /* 4954 * It doesn't matter what family our adapter is in, we are 4955 * limited to 2 Pages, 512 SGEs, for our SGL. 4956 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp 4957 */ 4958 max_buf_size = (2 * SLI4_PAGE_SIZE); 4959 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2) 4960 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2; 4961 4962 /* 4963 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 4964 * used to create the sg_dma_buf_pool must be dynamically calculated. 4965 */ 4966 4967 if (phba->cfg_enable_bg) { 4968 /* 4969 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 4970 * the FCP rsp, and a SGE for each. Sice we have no control 4971 * over how many protection data segments the SCSI Layer 4972 * will hand us (ie: there could be one for every block 4973 * in the IO), we just allocate enough SGEs to accomidate 4974 * our max amount and we need to limit lpfc_sg_seg_cnt to 4975 * minimize the risk of running out. 4976 */ 4977 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4978 sizeof(struct fcp_rsp) + max_buf_size; 4979 4980 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ 4981 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; 4982 4983 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF) 4984 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF; 4985 } else { 4986 /* 4987 * The scsi_buf for a regular I/O will hold the FCP cmnd, 4988 * the FCP rsp, a SGE for each, and a SGE for up to 4989 * cfg_sg_seg_cnt data segments. 4990 */ 4991 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4992 sizeof(struct fcp_rsp) + 4993 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)); 4994 4995 /* Total SGEs for scsi_sg_list */ 4996 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 4997 /* 4998 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need 4999 * to post 1 page for the SGL. 5000 */ 5001 } 5002 5003 /* Initialize the host templates with the updated values. */ 5004 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5005 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5006 5007 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) 5008 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; 5009 else 5010 phba->cfg_sg_dma_buf_size = 5011 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); 5012 5013 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5014 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n", 5015 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5016 phba->cfg_total_seg_cnt); 5017 5018 /* Initialize buffer queue management fields */ 5019 hbq_count = lpfc_sli_hbq_count(); 5020 for (i = 0; i < hbq_count; ++i) 5021 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5022 INIT_LIST_HEAD(&phba->rb_pend_list); 5023 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 5024 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 5025 5026 /* 5027 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 5028 */ 5029 /* Initialize the Abort scsi buffer list used by driver */ 5030 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 5031 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 5032 /* This abort list used by worker thread */ 5033 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 5034 5035 /* 5036 * Initialize driver internal slow-path work queues 5037 */ 5038 5039 /* Driver internel slow-path CQ Event pool */ 5040 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 5041 /* Response IOCB work queue list */ 5042 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 5043 /* Asynchronous event CQ Event work queue list */ 5044 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 5045 /* Fast-path XRI aborted CQ Event work queue list */ 5046 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 5047 /* Slow-path XRI aborted CQ Event work queue list */ 5048 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 5049 /* Receive queue CQ Event work queue list */ 5050 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 5051 5052 /* Initialize extent block lists. */ 5053 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 5054 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 5055 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 5056 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 5057 5058 /* Initialize the driver internal SLI layer lists. */ 5059 lpfc_sli_setup(phba); 5060 lpfc_sli_queue_setup(phba); 5061 5062 /* Allocate device driver memory */ 5063 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 5064 if (rc) 5065 return -ENOMEM; 5066 5067 /* IF Type 2 ports get initialized now. */ 5068 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5069 LPFC_SLI_INTF_IF_TYPE_2) { 5070 rc = lpfc_pci_function_reset(phba); 5071 if (unlikely(rc)) 5072 return -ENODEV; 5073 } 5074 5075 /* Create the bootstrap mailbox command */ 5076 rc = lpfc_create_bootstrap_mbox(phba); 5077 if (unlikely(rc)) 5078 goto out_free_mem; 5079 5080 /* Set up the host's endian order with the device. */ 5081 rc = lpfc_setup_endian_order(phba); 5082 if (unlikely(rc)) 5083 goto out_free_bsmbx; 5084 5085 /* Set up the hba's configuration parameters. */ 5086 rc = lpfc_sli4_read_config(phba); 5087 if (unlikely(rc)) 5088 goto out_free_bsmbx; 5089 5090 /* IF Type 0 ports get initialized now. */ 5091 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5092 LPFC_SLI_INTF_IF_TYPE_0) { 5093 rc = lpfc_pci_function_reset(phba); 5094 if (unlikely(rc)) 5095 goto out_free_bsmbx; 5096 } 5097 5098 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 5099 GFP_KERNEL); 5100 if (!mboxq) { 5101 rc = -ENOMEM; 5102 goto out_free_bsmbx; 5103 } 5104 5105 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 5106 lpfc_supported_pages(mboxq); 5107 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5108 if (!rc) { 5109 mqe = &mboxq->u.mqe; 5110 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 5111 LPFC_MAX_SUPPORTED_PAGES); 5112 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 5113 switch (pn_page[i]) { 5114 case LPFC_SLI4_PARAMETERS: 5115 phba->sli4_hba.pc_sli4_params.supported = 1; 5116 break; 5117 default: 5118 break; 5119 } 5120 } 5121 /* Read the port's SLI4 Parameters capabilities if supported. */ 5122 if (phba->sli4_hba.pc_sli4_params.supported) 5123 rc = lpfc_pc_sli4_params_get(phba, mboxq); 5124 if (rc) { 5125 mempool_free(mboxq, phba->mbox_mem_pool); 5126 rc = -EIO; 5127 goto out_free_bsmbx; 5128 } 5129 } 5130 /* 5131 * Get sli4 parameters that override parameters from Port capabilities. 5132 * If this call fails, it isn't critical unless the SLI4 parameters come 5133 * back in conflict. 5134 */ 5135 rc = lpfc_get_sli4_parameters(phba, mboxq); 5136 if (rc) { 5137 if (phba->sli4_hba.extents_in_use && 5138 phba->sli4_hba.rpi_hdrs_in_use) { 5139 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5140 "2999 Unsupported SLI4 Parameters " 5141 "Extents and RPI headers enabled.\n"); 5142 goto out_free_bsmbx; 5143 } 5144 } 5145 mempool_free(mboxq, phba->mbox_mem_pool); 5146 /* Verify all the SLI4 queues */ 5147 rc = lpfc_sli4_queue_verify(phba); 5148 if (rc) 5149 goto out_free_bsmbx; 5150 5151 /* Create driver internal CQE event pool */ 5152 rc = lpfc_sli4_cq_event_pool_create(phba); 5153 if (rc) 5154 goto out_free_bsmbx; 5155 5156 /* Initialize sgl lists per host */ 5157 lpfc_init_sgl_list(phba); 5158 5159 /* Allocate and initialize active sgl array */ 5160 rc = lpfc_init_active_sgl_array(phba); 5161 if (rc) { 5162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5163 "1430 Failed to initialize sgl list.\n"); 5164 goto out_destroy_cq_event_pool; 5165 } 5166 rc = lpfc_sli4_init_rpi_hdrs(phba); 5167 if (rc) { 5168 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5169 "1432 Failed to initialize rpi headers.\n"); 5170 goto out_free_active_sgl; 5171 } 5172 5173 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 5174 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 5175 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 5176 GFP_KERNEL); 5177 if (!phba->fcf.fcf_rr_bmask) { 5178 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5179 "2759 Failed allocate memory for FCF round " 5180 "robin failover bmask\n"); 5181 rc = -ENOMEM; 5182 goto out_remove_rpi_hdrs; 5183 } 5184 5185 phba->sli4_hba.fcp_eq_hdl = 5186 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 5187 phba->cfg_fcp_io_channel), GFP_KERNEL); 5188 if (!phba->sli4_hba.fcp_eq_hdl) { 5189 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5190 "2572 Failed allocate memory for " 5191 "fast-path per-EQ handle array\n"); 5192 rc = -ENOMEM; 5193 goto out_free_fcf_rr_bmask; 5194 } 5195 5196 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 5197 phba->cfg_fcp_io_channel), GFP_KERNEL); 5198 if (!phba->sli4_hba.msix_entries) { 5199 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5200 "2573 Failed allocate memory for msi-x " 5201 "interrupt vector entries\n"); 5202 rc = -ENOMEM; 5203 goto out_free_fcp_eq_hdl; 5204 } 5205 5206 phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) * 5207 phba->sli4_hba.num_present_cpu), 5208 GFP_KERNEL); 5209 if (!phba->sli4_hba.cpu_map) { 5210 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5211 "3327 Failed allocate memory for msi-x " 5212 "interrupt vector mapping\n"); 5213 rc = -ENOMEM; 5214 goto out_free_msix; 5215 } 5216 /* Initialize io channels for round robin */ 5217 cpup = phba->sli4_hba.cpu_map; 5218 rc = 0; 5219 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 5220 cpup->channel_id = rc; 5221 rc++; 5222 if (rc >= phba->cfg_fcp_io_channel) 5223 rc = 0; 5224 } 5225 5226 /* 5227 * Enable sr-iov virtual functions if supported and configured 5228 * through the module parameter. 5229 */ 5230 if (phba->cfg_sriov_nr_virtfn > 0) { 5231 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5232 phba->cfg_sriov_nr_virtfn); 5233 if (rc) { 5234 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5235 "3020 Requested number of SR-IOV " 5236 "virtual functions (%d) is not " 5237 "supported\n", 5238 phba->cfg_sriov_nr_virtfn); 5239 phba->cfg_sriov_nr_virtfn = 0; 5240 } 5241 } 5242 5243 return 0; 5244 5245 out_free_msix: 5246 kfree(phba->sli4_hba.msix_entries); 5247 out_free_fcp_eq_hdl: 5248 kfree(phba->sli4_hba.fcp_eq_hdl); 5249 out_free_fcf_rr_bmask: 5250 kfree(phba->fcf.fcf_rr_bmask); 5251 out_remove_rpi_hdrs: 5252 lpfc_sli4_remove_rpi_hdrs(phba); 5253 out_free_active_sgl: 5254 lpfc_free_active_sgl(phba); 5255 out_destroy_cq_event_pool: 5256 lpfc_sli4_cq_event_pool_destroy(phba); 5257 out_free_bsmbx: 5258 lpfc_destroy_bootstrap_mbox(phba); 5259 out_free_mem: 5260 lpfc_mem_free(phba); 5261 return rc; 5262 } 5263 5264 /** 5265 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 5266 * @phba: pointer to lpfc hba data structure. 5267 * 5268 * This routine is invoked to unset the driver internal resources set up 5269 * specific for supporting the SLI-4 HBA device it attached to. 5270 **/ 5271 static void 5272 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 5273 { 5274 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 5275 5276 /* Free memory allocated for msi-x interrupt vector to CPU mapping */ 5277 kfree(phba->sli4_hba.cpu_map); 5278 phba->sli4_hba.num_present_cpu = 0; 5279 phba->sli4_hba.num_online_cpu = 0; 5280 5281 /* Free memory allocated for msi-x interrupt vector entries */ 5282 kfree(phba->sli4_hba.msix_entries); 5283 5284 /* Free memory allocated for fast-path work queue handles */ 5285 kfree(phba->sli4_hba.fcp_eq_hdl); 5286 5287 /* Free the allocated rpi headers. */ 5288 lpfc_sli4_remove_rpi_hdrs(phba); 5289 lpfc_sli4_remove_rpis(phba); 5290 5291 /* Free eligible FCF index bmask */ 5292 kfree(phba->fcf.fcf_rr_bmask); 5293 5294 /* Free the ELS sgl list */ 5295 lpfc_free_active_sgl(phba); 5296 lpfc_free_els_sgl_list(phba); 5297 5298 /* Free the completion queue EQ event pool */ 5299 lpfc_sli4_cq_event_release_all(phba); 5300 lpfc_sli4_cq_event_pool_destroy(phba); 5301 5302 /* Release resource identifiers. */ 5303 lpfc_sli4_dealloc_resource_identifiers(phba); 5304 5305 /* Free the bsmbx region. */ 5306 lpfc_destroy_bootstrap_mbox(phba); 5307 5308 /* Free the SLI Layer memory with SLI4 HBAs */ 5309 lpfc_mem_free_all(phba); 5310 5311 /* Free the current connect table */ 5312 list_for_each_entry_safe(conn_entry, next_conn_entry, 5313 &phba->fcf_conn_rec_list, list) { 5314 list_del_init(&conn_entry->list); 5315 kfree(conn_entry); 5316 } 5317 5318 return; 5319 } 5320 5321 /** 5322 * lpfc_init_api_table_setup - Set up init api function jump table 5323 * @phba: The hba struct for which this call is being executed. 5324 * @dev_grp: The HBA PCI-Device group number. 5325 * 5326 * This routine sets up the device INIT interface API function jump table 5327 * in @phba struct. 5328 * 5329 * Returns: 0 - success, -ENODEV - failure. 5330 **/ 5331 int 5332 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5333 { 5334 phba->lpfc_hba_init_link = lpfc_hba_init_link; 5335 phba->lpfc_hba_down_link = lpfc_hba_down_link; 5336 phba->lpfc_selective_reset = lpfc_selective_reset; 5337 switch (dev_grp) { 5338 case LPFC_PCI_DEV_LP: 5339 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 5340 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 5341 phba->lpfc_stop_port = lpfc_stop_port_s3; 5342 break; 5343 case LPFC_PCI_DEV_OC: 5344 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 5345 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 5346 phba->lpfc_stop_port = lpfc_stop_port_s4; 5347 break; 5348 default: 5349 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5350 "1431 Invalid HBA PCI-device group: 0x%x\n", 5351 dev_grp); 5352 return -ENODEV; 5353 break; 5354 } 5355 return 0; 5356 } 5357 5358 /** 5359 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5360 * @phba: pointer to lpfc hba data structure. 5361 * 5362 * This routine is invoked to set up the driver internal resources before the 5363 * device specific resource setup to support the HBA device it attached to. 5364 * 5365 * Return codes 5366 * 0 - successful 5367 * other values - error 5368 **/ 5369 static int 5370 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5371 { 5372 /* 5373 * Driver resources common to all SLI revisions 5374 */ 5375 atomic_set(&phba->fast_event_count, 0); 5376 spin_lock_init(&phba->hbalock); 5377 5378 /* Initialize ndlp management spinlock */ 5379 spin_lock_init(&phba->ndlp_lock); 5380 5381 INIT_LIST_HEAD(&phba->port_list); 5382 INIT_LIST_HEAD(&phba->work_list); 5383 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5384 5385 /* Initialize the wait queue head for the kernel thread */ 5386 init_waitqueue_head(&phba->work_waitq); 5387 5388 /* Initialize the scsi buffer list used by driver for scsi IO */ 5389 spin_lock_init(&phba->scsi_buf_list_get_lock); 5390 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); 5391 spin_lock_init(&phba->scsi_buf_list_put_lock); 5392 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 5393 5394 /* Initialize the fabric iocb list */ 5395 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5396 5397 /* Initialize list to save ELS buffers */ 5398 INIT_LIST_HEAD(&phba->elsbuf); 5399 5400 /* Initialize FCF connection rec list */ 5401 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5402 5403 return 0; 5404 } 5405 5406 /** 5407 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 5408 * @phba: pointer to lpfc hba data structure. 5409 * 5410 * This routine is invoked to set up the driver internal resources after the 5411 * device specific resource setup to support the HBA device it attached to. 5412 * 5413 * Return codes 5414 * 0 - successful 5415 * other values - error 5416 **/ 5417 static int 5418 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 5419 { 5420 int error; 5421 5422 /* Startup the kernel thread for this host adapter. */ 5423 phba->worker_thread = kthread_run(lpfc_do_work, phba, 5424 "lpfc_worker_%d", phba->brd_no); 5425 if (IS_ERR(phba->worker_thread)) { 5426 error = PTR_ERR(phba->worker_thread); 5427 return error; 5428 } 5429 5430 return 0; 5431 } 5432 5433 /** 5434 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 5435 * @phba: pointer to lpfc hba data structure. 5436 * 5437 * This routine is invoked to unset the driver internal resources set up after 5438 * the device specific resource setup for supporting the HBA device it 5439 * attached to. 5440 **/ 5441 static void 5442 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 5443 { 5444 /* Stop kernel worker thread */ 5445 kthread_stop(phba->worker_thread); 5446 } 5447 5448 /** 5449 * lpfc_free_iocb_list - Free iocb list. 5450 * @phba: pointer to lpfc hba data structure. 5451 * 5452 * This routine is invoked to free the driver's IOCB list and memory. 5453 **/ 5454 static void 5455 lpfc_free_iocb_list(struct lpfc_hba *phba) 5456 { 5457 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 5458 5459 spin_lock_irq(&phba->hbalock); 5460 list_for_each_entry_safe(iocbq_entry, iocbq_next, 5461 &phba->lpfc_iocb_list, list) { 5462 list_del(&iocbq_entry->list); 5463 kfree(iocbq_entry); 5464 phba->total_iocbq_bufs--; 5465 } 5466 spin_unlock_irq(&phba->hbalock); 5467 5468 return; 5469 } 5470 5471 /** 5472 * lpfc_init_iocb_list - Allocate and initialize iocb list. 5473 * @phba: pointer to lpfc hba data structure. 5474 * 5475 * This routine is invoked to allocate and initizlize the driver's IOCB 5476 * list and set up the IOCB tag array accordingly. 5477 * 5478 * Return codes 5479 * 0 - successful 5480 * other values - error 5481 **/ 5482 static int 5483 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 5484 { 5485 struct lpfc_iocbq *iocbq_entry = NULL; 5486 uint16_t iotag; 5487 int i; 5488 5489 /* Initialize and populate the iocb list per host. */ 5490 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 5491 for (i = 0; i < iocb_count; i++) { 5492 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 5493 if (iocbq_entry == NULL) { 5494 printk(KERN_ERR "%s: only allocated %d iocbs of " 5495 "expected %d count. Unloading driver.\n", 5496 __func__, i, LPFC_IOCB_LIST_CNT); 5497 goto out_free_iocbq; 5498 } 5499 5500 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 5501 if (iotag == 0) { 5502 kfree(iocbq_entry); 5503 printk(KERN_ERR "%s: failed to allocate IOTAG. " 5504 "Unloading driver.\n", __func__); 5505 goto out_free_iocbq; 5506 } 5507 iocbq_entry->sli4_lxritag = NO_XRI; 5508 iocbq_entry->sli4_xritag = NO_XRI; 5509 5510 spin_lock_irq(&phba->hbalock); 5511 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 5512 phba->total_iocbq_bufs++; 5513 spin_unlock_irq(&phba->hbalock); 5514 } 5515 5516 return 0; 5517 5518 out_free_iocbq: 5519 lpfc_free_iocb_list(phba); 5520 5521 return -ENOMEM; 5522 } 5523 5524 /** 5525 * lpfc_free_sgl_list - Free a given sgl list. 5526 * @phba: pointer to lpfc hba data structure. 5527 * @sglq_list: pointer to the head of sgl list. 5528 * 5529 * This routine is invoked to free a give sgl list and memory. 5530 **/ 5531 void 5532 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 5533 { 5534 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 5535 5536 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 5537 list_del(&sglq_entry->list); 5538 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 5539 kfree(sglq_entry); 5540 } 5541 } 5542 5543 /** 5544 * lpfc_free_els_sgl_list - Free els sgl list. 5545 * @phba: pointer to lpfc hba data structure. 5546 * 5547 * This routine is invoked to free the driver's els sgl list and memory. 5548 **/ 5549 static void 5550 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 5551 { 5552 LIST_HEAD(sglq_list); 5553 5554 /* Retrieve all els sgls from driver list */ 5555 spin_lock_irq(&phba->hbalock); 5556 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 5557 spin_unlock_irq(&phba->hbalock); 5558 5559 /* Now free the sgl list */ 5560 lpfc_free_sgl_list(phba, &sglq_list); 5561 } 5562 5563 /** 5564 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 5565 * @phba: pointer to lpfc hba data structure. 5566 * 5567 * This routine is invoked to allocate the driver's active sgl memory. 5568 * This array will hold the sglq_entry's for active IOs. 5569 **/ 5570 static int 5571 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 5572 { 5573 int size; 5574 size = sizeof(struct lpfc_sglq *); 5575 size *= phba->sli4_hba.max_cfg_param.max_xri; 5576 5577 phba->sli4_hba.lpfc_sglq_active_list = 5578 kzalloc(size, GFP_KERNEL); 5579 if (!phba->sli4_hba.lpfc_sglq_active_list) 5580 return -ENOMEM; 5581 return 0; 5582 } 5583 5584 /** 5585 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 5586 * @phba: pointer to lpfc hba data structure. 5587 * 5588 * This routine is invoked to walk through the array of active sglq entries 5589 * and free all of the resources. 5590 * This is just a place holder for now. 5591 **/ 5592 static void 5593 lpfc_free_active_sgl(struct lpfc_hba *phba) 5594 { 5595 kfree(phba->sli4_hba.lpfc_sglq_active_list); 5596 } 5597 5598 /** 5599 * lpfc_init_sgl_list - Allocate and initialize sgl list. 5600 * @phba: pointer to lpfc hba data structure. 5601 * 5602 * This routine is invoked to allocate and initizlize the driver's sgl 5603 * list and set up the sgl xritag tag array accordingly. 5604 * 5605 **/ 5606 static void 5607 lpfc_init_sgl_list(struct lpfc_hba *phba) 5608 { 5609 /* Initialize and populate the sglq list per host/VF. */ 5610 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 5611 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 5612 5613 /* els xri-sgl book keeping */ 5614 phba->sli4_hba.els_xri_cnt = 0; 5615 5616 /* scsi xri-buffer book keeping */ 5617 phba->sli4_hba.scsi_xri_cnt = 0; 5618 } 5619 5620 /** 5621 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 5622 * @phba: pointer to lpfc hba data structure. 5623 * 5624 * This routine is invoked to post rpi header templates to the 5625 * port for those SLI4 ports that do not support extents. This routine 5626 * posts a PAGE_SIZE memory region to the port to hold up to 5627 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 5628 * and should be called only when interrupts are disabled. 5629 * 5630 * Return codes 5631 * 0 - successful 5632 * -ERROR - otherwise. 5633 **/ 5634 int 5635 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 5636 { 5637 int rc = 0; 5638 struct lpfc_rpi_hdr *rpi_hdr; 5639 5640 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 5641 if (!phba->sli4_hba.rpi_hdrs_in_use) 5642 return rc; 5643 if (phba->sli4_hba.extents_in_use) 5644 return -EIO; 5645 5646 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 5647 if (!rpi_hdr) { 5648 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 5649 "0391 Error during rpi post operation\n"); 5650 lpfc_sli4_remove_rpis(phba); 5651 rc = -ENODEV; 5652 } 5653 5654 return rc; 5655 } 5656 5657 /** 5658 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 5659 * @phba: pointer to lpfc hba data structure. 5660 * 5661 * This routine is invoked to allocate a single 4KB memory region to 5662 * support rpis and stores them in the phba. This single region 5663 * provides support for up to 64 rpis. The region is used globally 5664 * by the device. 5665 * 5666 * Returns: 5667 * A valid rpi hdr on success. 5668 * A NULL pointer on any failure. 5669 **/ 5670 struct lpfc_rpi_hdr * 5671 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 5672 { 5673 uint16_t rpi_limit, curr_rpi_range; 5674 struct lpfc_dmabuf *dmabuf; 5675 struct lpfc_rpi_hdr *rpi_hdr; 5676 uint32_t rpi_count; 5677 5678 /* 5679 * If the SLI4 port supports extents, posting the rpi header isn't 5680 * required. Set the expected maximum count and let the actual value 5681 * get set when extents are fully allocated. 5682 */ 5683 if (!phba->sli4_hba.rpi_hdrs_in_use) 5684 return NULL; 5685 if (phba->sli4_hba.extents_in_use) 5686 return NULL; 5687 5688 /* The limit on the logical index is just the max_rpi count. */ 5689 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 5690 phba->sli4_hba.max_cfg_param.max_rpi - 1; 5691 5692 spin_lock_irq(&phba->hbalock); 5693 /* 5694 * Establish the starting RPI in this header block. The starting 5695 * rpi is normalized to a zero base because the physical rpi is 5696 * port based. 5697 */ 5698 curr_rpi_range = phba->sli4_hba.next_rpi; 5699 spin_unlock_irq(&phba->hbalock); 5700 5701 /* 5702 * The port has a limited number of rpis. The increment here 5703 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 5704 * and to allow the full max_rpi range per port. 5705 */ 5706 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 5707 rpi_count = rpi_limit - curr_rpi_range; 5708 else 5709 rpi_count = LPFC_RPI_HDR_COUNT; 5710 5711 if (!rpi_count) 5712 return NULL; 5713 /* 5714 * First allocate the protocol header region for the port. The 5715 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 5716 */ 5717 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5718 if (!dmabuf) 5719 return NULL; 5720 5721 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5722 LPFC_HDR_TEMPLATE_SIZE, 5723 &dmabuf->phys, 5724 GFP_KERNEL); 5725 if (!dmabuf->virt) { 5726 rpi_hdr = NULL; 5727 goto err_free_dmabuf; 5728 } 5729 5730 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 5731 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 5732 rpi_hdr = NULL; 5733 goto err_free_coherent; 5734 } 5735 5736 /* Save the rpi header data for cleanup later. */ 5737 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 5738 if (!rpi_hdr) 5739 goto err_free_coherent; 5740 5741 rpi_hdr->dmabuf = dmabuf; 5742 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 5743 rpi_hdr->page_count = 1; 5744 spin_lock_irq(&phba->hbalock); 5745 5746 /* The rpi_hdr stores the logical index only. */ 5747 rpi_hdr->start_rpi = curr_rpi_range; 5748 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 5749 5750 /* 5751 * The next_rpi stores the next logical module-64 rpi value used 5752 * to post physical rpis in subsequent rpi postings. 5753 */ 5754 phba->sli4_hba.next_rpi += rpi_count; 5755 spin_unlock_irq(&phba->hbalock); 5756 return rpi_hdr; 5757 5758 err_free_coherent: 5759 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 5760 dmabuf->virt, dmabuf->phys); 5761 err_free_dmabuf: 5762 kfree(dmabuf); 5763 return NULL; 5764 } 5765 5766 /** 5767 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 5768 * @phba: pointer to lpfc hba data structure. 5769 * 5770 * This routine is invoked to remove all memory resources allocated 5771 * to support rpis for SLI4 ports not supporting extents. This routine 5772 * presumes the caller has released all rpis consumed by fabric or port 5773 * logins and is prepared to have the header pages removed. 5774 **/ 5775 void 5776 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 5777 { 5778 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 5779 5780 if (!phba->sli4_hba.rpi_hdrs_in_use) 5781 goto exit; 5782 5783 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 5784 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 5785 list_del(&rpi_hdr->list); 5786 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 5787 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 5788 kfree(rpi_hdr->dmabuf); 5789 kfree(rpi_hdr); 5790 } 5791 exit: 5792 /* There are no rpis available to the port now. */ 5793 phba->sli4_hba.next_rpi = 0; 5794 } 5795 5796 /** 5797 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 5798 * @pdev: pointer to pci device data structure. 5799 * 5800 * This routine is invoked to allocate the driver hba data structure for an 5801 * HBA device. If the allocation is successful, the phba reference to the 5802 * PCI device data structure is set. 5803 * 5804 * Return codes 5805 * pointer to @phba - successful 5806 * NULL - error 5807 **/ 5808 static struct lpfc_hba * 5809 lpfc_hba_alloc(struct pci_dev *pdev) 5810 { 5811 struct lpfc_hba *phba; 5812 5813 /* Allocate memory for HBA structure */ 5814 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 5815 if (!phba) { 5816 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 5817 return NULL; 5818 } 5819 5820 /* Set reference to PCI device in HBA structure */ 5821 phba->pcidev = pdev; 5822 5823 /* Assign an unused board number */ 5824 phba->brd_no = lpfc_get_instance(); 5825 if (phba->brd_no < 0) { 5826 kfree(phba); 5827 return NULL; 5828 } 5829 5830 spin_lock_init(&phba->ct_ev_lock); 5831 INIT_LIST_HEAD(&phba->ct_ev_waiters); 5832 5833 return phba; 5834 } 5835 5836 /** 5837 * lpfc_hba_free - Free driver hba data structure with a device. 5838 * @phba: pointer to lpfc hba data structure. 5839 * 5840 * This routine is invoked to free the driver hba data structure with an 5841 * HBA device. 5842 **/ 5843 static void 5844 lpfc_hba_free(struct lpfc_hba *phba) 5845 { 5846 /* Release the driver assigned board number */ 5847 idr_remove(&lpfc_hba_index, phba->brd_no); 5848 5849 /* Free memory allocated with sli rings */ 5850 kfree(phba->sli.ring); 5851 phba->sli.ring = NULL; 5852 5853 kfree(phba); 5854 return; 5855 } 5856 5857 /** 5858 * lpfc_create_shost - Create hba physical port with associated scsi host. 5859 * @phba: pointer to lpfc hba data structure. 5860 * 5861 * This routine is invoked to create HBA physical port and associate a SCSI 5862 * host with it. 5863 * 5864 * Return codes 5865 * 0 - successful 5866 * other values - error 5867 **/ 5868 static int 5869 lpfc_create_shost(struct lpfc_hba *phba) 5870 { 5871 struct lpfc_vport *vport; 5872 struct Scsi_Host *shost; 5873 5874 /* Initialize HBA FC structure */ 5875 phba->fc_edtov = FF_DEF_EDTOV; 5876 phba->fc_ratov = FF_DEF_RATOV; 5877 phba->fc_altov = FF_DEF_ALTOV; 5878 phba->fc_arbtov = FF_DEF_ARBTOV; 5879 5880 atomic_set(&phba->sdev_cnt, 0); 5881 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 5882 if (!vport) 5883 return -ENODEV; 5884 5885 shost = lpfc_shost_from_vport(vport); 5886 phba->pport = vport; 5887 lpfc_debugfs_initialize(vport); 5888 /* Put reference to SCSI host to driver's device private data */ 5889 pci_set_drvdata(phba->pcidev, shost); 5890 5891 return 0; 5892 } 5893 5894 /** 5895 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 5896 * @phba: pointer to lpfc hba data structure. 5897 * 5898 * This routine is invoked to destroy HBA physical port and the associated 5899 * SCSI host. 5900 **/ 5901 static void 5902 lpfc_destroy_shost(struct lpfc_hba *phba) 5903 { 5904 struct lpfc_vport *vport = phba->pport; 5905 5906 /* Destroy physical port that associated with the SCSI host */ 5907 destroy_port(vport); 5908 5909 return; 5910 } 5911 5912 /** 5913 * lpfc_setup_bg - Setup Block guard structures and debug areas. 5914 * @phba: pointer to lpfc hba data structure. 5915 * @shost: the shost to be used to detect Block guard settings. 5916 * 5917 * This routine sets up the local Block guard protocol settings for @shost. 5918 * This routine also allocates memory for debugging bg buffers. 5919 **/ 5920 static void 5921 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 5922 { 5923 uint32_t old_mask; 5924 uint32_t old_guard; 5925 5926 int pagecnt = 10; 5927 if (lpfc_prot_mask && lpfc_prot_guard) { 5928 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5929 "1478 Registering BlockGuard with the " 5930 "SCSI layer\n"); 5931 5932 old_mask = lpfc_prot_mask; 5933 old_guard = lpfc_prot_guard; 5934 5935 /* Only allow supported values */ 5936 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 5937 SHOST_DIX_TYPE0_PROTECTION | 5938 SHOST_DIX_TYPE1_PROTECTION); 5939 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC); 5940 5941 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 5942 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 5943 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 5944 5945 if (lpfc_prot_mask && lpfc_prot_guard) { 5946 if ((old_mask != lpfc_prot_mask) || 5947 (old_guard != lpfc_prot_guard)) 5948 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5949 "1475 Registering BlockGuard with the " 5950 "SCSI layer: mask %d guard %d\n", 5951 lpfc_prot_mask, lpfc_prot_guard); 5952 5953 scsi_host_set_prot(shost, lpfc_prot_mask); 5954 scsi_host_set_guard(shost, lpfc_prot_guard); 5955 } else 5956 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5957 "1479 Not Registering BlockGuard with the SCSI " 5958 "layer, Bad protection parameters: %d %d\n", 5959 old_mask, old_guard); 5960 } 5961 5962 if (!_dump_buf_data) { 5963 while (pagecnt) { 5964 spin_lock_init(&_dump_buf_lock); 5965 _dump_buf_data = 5966 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5967 if (_dump_buf_data) { 5968 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5969 "9043 BLKGRD: allocated %d pages for " 5970 "_dump_buf_data at 0x%p\n", 5971 (1 << pagecnt), _dump_buf_data); 5972 _dump_buf_data_order = pagecnt; 5973 memset(_dump_buf_data, 0, 5974 ((1 << PAGE_SHIFT) << pagecnt)); 5975 break; 5976 } else 5977 --pagecnt; 5978 } 5979 if (!_dump_buf_data_order) 5980 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5981 "9044 BLKGRD: ERROR unable to allocate " 5982 "memory for hexdump\n"); 5983 } else 5984 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5985 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 5986 "\n", _dump_buf_data); 5987 if (!_dump_buf_dif) { 5988 while (pagecnt) { 5989 _dump_buf_dif = 5990 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5991 if (_dump_buf_dif) { 5992 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5993 "9046 BLKGRD: allocated %d pages for " 5994 "_dump_buf_dif at 0x%p\n", 5995 (1 << pagecnt), _dump_buf_dif); 5996 _dump_buf_dif_order = pagecnt; 5997 memset(_dump_buf_dif, 0, 5998 ((1 << PAGE_SHIFT) << pagecnt)); 5999 break; 6000 } else 6001 --pagecnt; 6002 } 6003 if (!_dump_buf_dif_order) 6004 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6005 "9047 BLKGRD: ERROR unable to allocate " 6006 "memory for hexdump\n"); 6007 } else 6008 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6009 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 6010 _dump_buf_dif); 6011 } 6012 6013 /** 6014 * lpfc_post_init_setup - Perform necessary device post initialization setup. 6015 * @phba: pointer to lpfc hba data structure. 6016 * 6017 * This routine is invoked to perform all the necessary post initialization 6018 * setup for the device. 6019 **/ 6020 static void 6021 lpfc_post_init_setup(struct lpfc_hba *phba) 6022 { 6023 struct Scsi_Host *shost; 6024 struct lpfc_adapter_event_header adapter_event; 6025 6026 /* Get the default values for Model Name and Description */ 6027 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 6028 6029 /* 6030 * hba setup may have changed the hba_queue_depth so we need to 6031 * adjust the value of can_queue. 6032 */ 6033 shost = pci_get_drvdata(phba->pcidev); 6034 shost->can_queue = phba->cfg_hba_queue_depth - 10; 6035 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 6036 lpfc_setup_bg(phba, shost); 6037 6038 lpfc_host_attrib_init(shost); 6039 6040 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 6041 spin_lock_irq(shost->host_lock); 6042 lpfc_poll_start_timer(phba); 6043 spin_unlock_irq(shost->host_lock); 6044 } 6045 6046 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6047 "0428 Perform SCSI scan\n"); 6048 /* Send board arrival event to upper layer */ 6049 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 6050 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 6051 fc_host_post_vendor_event(shost, fc_get_event_number(), 6052 sizeof(adapter_event), 6053 (char *) &adapter_event, 6054 LPFC_NL_VENDOR_ID); 6055 return; 6056 } 6057 6058 /** 6059 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 6060 * @phba: pointer to lpfc hba data structure. 6061 * 6062 * This routine is invoked to set up the PCI device memory space for device 6063 * with SLI-3 interface spec. 6064 * 6065 * Return codes 6066 * 0 - successful 6067 * other values - error 6068 **/ 6069 static int 6070 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 6071 { 6072 struct pci_dev *pdev; 6073 unsigned long bar0map_len, bar2map_len; 6074 int i, hbq_count; 6075 void *ptr; 6076 int error = -ENODEV; 6077 6078 /* Obtain PCI device reference */ 6079 if (!phba->pcidev) 6080 return error; 6081 else 6082 pdev = phba->pcidev; 6083 6084 /* Set the device DMA mask size */ 6085 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6086 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6087 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6088 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6089 return error; 6090 } 6091 } 6092 6093 /* Get the bus address of Bar0 and Bar2 and the number of bytes 6094 * required by each mapping. 6095 */ 6096 phba->pci_bar0_map = pci_resource_start(pdev, 0); 6097 bar0map_len = pci_resource_len(pdev, 0); 6098 6099 phba->pci_bar2_map = pci_resource_start(pdev, 2); 6100 bar2map_len = pci_resource_len(pdev, 2); 6101 6102 /* Map HBA SLIM to a kernel virtual address. */ 6103 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 6104 if (!phba->slim_memmap_p) { 6105 dev_printk(KERN_ERR, &pdev->dev, 6106 "ioremap failed for SLIM memory.\n"); 6107 goto out; 6108 } 6109 6110 /* Map HBA Control Registers to a kernel virtual address. */ 6111 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 6112 if (!phba->ctrl_regs_memmap_p) { 6113 dev_printk(KERN_ERR, &pdev->dev, 6114 "ioremap failed for HBA control registers.\n"); 6115 goto out_iounmap_slim; 6116 } 6117 6118 /* Allocate memory for SLI-2 structures */ 6119 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 6120 SLI2_SLIM_SIZE, 6121 &phba->slim2p.phys, 6122 GFP_KERNEL); 6123 if (!phba->slim2p.virt) 6124 goto out_iounmap; 6125 6126 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 6127 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 6128 phba->mbox_ext = (phba->slim2p.virt + 6129 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 6130 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 6131 phba->IOCBs = (phba->slim2p.virt + 6132 offsetof(struct lpfc_sli2_slim, IOCBs)); 6133 6134 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 6135 lpfc_sli_hbq_size(), 6136 &phba->hbqslimp.phys, 6137 GFP_KERNEL); 6138 if (!phba->hbqslimp.virt) 6139 goto out_free_slim; 6140 6141 hbq_count = lpfc_sli_hbq_count(); 6142 ptr = phba->hbqslimp.virt; 6143 for (i = 0; i < hbq_count; ++i) { 6144 phba->hbqs[i].hbq_virt = ptr; 6145 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 6146 ptr += (lpfc_hbq_defs[i]->entry_count * 6147 sizeof(struct lpfc_hbq_entry)); 6148 } 6149 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 6150 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 6151 6152 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 6153 6154 INIT_LIST_HEAD(&phba->rb_pend_list); 6155 6156 phba->MBslimaddr = phba->slim_memmap_p; 6157 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 6158 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 6159 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 6160 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 6161 6162 return 0; 6163 6164 out_free_slim: 6165 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6166 phba->slim2p.virt, phba->slim2p.phys); 6167 out_iounmap: 6168 iounmap(phba->ctrl_regs_memmap_p); 6169 out_iounmap_slim: 6170 iounmap(phba->slim_memmap_p); 6171 out: 6172 return error; 6173 } 6174 6175 /** 6176 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 6177 * @phba: pointer to lpfc hba data structure. 6178 * 6179 * This routine is invoked to unset the PCI device memory space for device 6180 * with SLI-3 interface spec. 6181 **/ 6182 static void 6183 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 6184 { 6185 struct pci_dev *pdev; 6186 6187 /* Obtain PCI device reference */ 6188 if (!phba->pcidev) 6189 return; 6190 else 6191 pdev = phba->pcidev; 6192 6193 /* Free coherent DMA memory allocated */ 6194 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 6195 phba->hbqslimp.virt, phba->hbqslimp.phys); 6196 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6197 phba->slim2p.virt, phba->slim2p.phys); 6198 6199 /* I/O memory unmap */ 6200 iounmap(phba->ctrl_regs_memmap_p); 6201 iounmap(phba->slim_memmap_p); 6202 6203 return; 6204 } 6205 6206 /** 6207 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 6208 * @phba: pointer to lpfc hba data structure. 6209 * 6210 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 6211 * done and check status. 6212 * 6213 * Return 0 if successful, otherwise -ENODEV. 6214 **/ 6215 int 6216 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 6217 { 6218 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 6219 struct lpfc_register reg_data; 6220 int i, port_error = 0; 6221 uint32_t if_type; 6222 6223 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 6224 memset(®_data, 0, sizeof(reg_data)); 6225 if (!phba->sli4_hba.PSMPHRregaddr) 6226 return -ENODEV; 6227 6228 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 6229 for (i = 0; i < 3000; i++) { 6230 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 6231 &portsmphr_reg.word0) || 6232 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 6233 /* Port has a fatal POST error, break out */ 6234 port_error = -ENODEV; 6235 break; 6236 } 6237 if (LPFC_POST_STAGE_PORT_READY == 6238 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 6239 break; 6240 msleep(10); 6241 } 6242 6243 /* 6244 * If there was a port error during POST, then don't proceed with 6245 * other register reads as the data may not be valid. Just exit. 6246 */ 6247 if (port_error) { 6248 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6249 "1408 Port Failed POST - portsmphr=0x%x, " 6250 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 6251 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 6252 portsmphr_reg.word0, 6253 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 6254 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 6255 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 6256 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 6257 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 6258 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 6259 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 6260 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 6261 } else { 6262 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6263 "2534 Device Info: SLIFamily=0x%x, " 6264 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 6265 "SLIHint_2=0x%x, FT=0x%x\n", 6266 bf_get(lpfc_sli_intf_sli_family, 6267 &phba->sli4_hba.sli_intf), 6268 bf_get(lpfc_sli_intf_slirev, 6269 &phba->sli4_hba.sli_intf), 6270 bf_get(lpfc_sli_intf_if_type, 6271 &phba->sli4_hba.sli_intf), 6272 bf_get(lpfc_sli_intf_sli_hint1, 6273 &phba->sli4_hba.sli_intf), 6274 bf_get(lpfc_sli_intf_sli_hint2, 6275 &phba->sli4_hba.sli_intf), 6276 bf_get(lpfc_sli_intf_func_type, 6277 &phba->sli4_hba.sli_intf)); 6278 /* 6279 * Check for other Port errors during the initialization 6280 * process. Fail the load if the port did not come up 6281 * correctly. 6282 */ 6283 if_type = bf_get(lpfc_sli_intf_if_type, 6284 &phba->sli4_hba.sli_intf); 6285 switch (if_type) { 6286 case LPFC_SLI_INTF_IF_TYPE_0: 6287 phba->sli4_hba.ue_mask_lo = 6288 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 6289 phba->sli4_hba.ue_mask_hi = 6290 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 6291 uerrlo_reg.word0 = 6292 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 6293 uerrhi_reg.word0 = 6294 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 6295 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 6296 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 6297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6298 "1422 Unrecoverable Error " 6299 "Detected during POST " 6300 "uerr_lo_reg=0x%x, " 6301 "uerr_hi_reg=0x%x, " 6302 "ue_mask_lo_reg=0x%x, " 6303 "ue_mask_hi_reg=0x%x\n", 6304 uerrlo_reg.word0, 6305 uerrhi_reg.word0, 6306 phba->sli4_hba.ue_mask_lo, 6307 phba->sli4_hba.ue_mask_hi); 6308 port_error = -ENODEV; 6309 } 6310 break; 6311 case LPFC_SLI_INTF_IF_TYPE_2: 6312 /* Final checks. The port status should be clean. */ 6313 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 6314 ®_data.word0) || 6315 (bf_get(lpfc_sliport_status_err, ®_data) && 6316 !bf_get(lpfc_sliport_status_rn, ®_data))) { 6317 phba->work_status[0] = 6318 readl(phba->sli4_hba.u.if_type2. 6319 ERR1regaddr); 6320 phba->work_status[1] = 6321 readl(phba->sli4_hba.u.if_type2. 6322 ERR2regaddr); 6323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6324 "2888 Unrecoverable port error " 6325 "following POST: port status reg " 6326 "0x%x, port_smphr reg 0x%x, " 6327 "error 1=0x%x, error 2=0x%x\n", 6328 reg_data.word0, 6329 portsmphr_reg.word0, 6330 phba->work_status[0], 6331 phba->work_status[1]); 6332 port_error = -ENODEV; 6333 } 6334 break; 6335 case LPFC_SLI_INTF_IF_TYPE_1: 6336 default: 6337 break; 6338 } 6339 } 6340 return port_error; 6341 } 6342 6343 /** 6344 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 6345 * @phba: pointer to lpfc hba data structure. 6346 * @if_type: The SLI4 interface type getting configured. 6347 * 6348 * This routine is invoked to set up SLI4 BAR0 PCI config space register 6349 * memory map. 6350 **/ 6351 static void 6352 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 6353 { 6354 switch (if_type) { 6355 case LPFC_SLI_INTF_IF_TYPE_0: 6356 phba->sli4_hba.u.if_type0.UERRLOregaddr = 6357 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 6358 phba->sli4_hba.u.if_type0.UERRHIregaddr = 6359 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 6360 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 6361 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 6362 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 6363 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 6364 phba->sli4_hba.SLIINTFregaddr = 6365 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 6366 break; 6367 case LPFC_SLI_INTF_IF_TYPE_2: 6368 phba->sli4_hba.u.if_type2.ERR1regaddr = 6369 phba->sli4_hba.conf_regs_memmap_p + 6370 LPFC_CTL_PORT_ER1_OFFSET; 6371 phba->sli4_hba.u.if_type2.ERR2regaddr = 6372 phba->sli4_hba.conf_regs_memmap_p + 6373 LPFC_CTL_PORT_ER2_OFFSET; 6374 phba->sli4_hba.u.if_type2.CTRLregaddr = 6375 phba->sli4_hba.conf_regs_memmap_p + 6376 LPFC_CTL_PORT_CTL_OFFSET; 6377 phba->sli4_hba.u.if_type2.STATUSregaddr = 6378 phba->sli4_hba.conf_regs_memmap_p + 6379 LPFC_CTL_PORT_STA_OFFSET; 6380 phba->sli4_hba.SLIINTFregaddr = 6381 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 6382 phba->sli4_hba.PSMPHRregaddr = 6383 phba->sli4_hba.conf_regs_memmap_p + 6384 LPFC_CTL_PORT_SEM_OFFSET; 6385 phba->sli4_hba.RQDBregaddr = 6386 phba->sli4_hba.conf_regs_memmap_p + 6387 LPFC_ULP0_RQ_DOORBELL; 6388 phba->sli4_hba.WQDBregaddr = 6389 phba->sli4_hba.conf_regs_memmap_p + 6390 LPFC_ULP0_WQ_DOORBELL; 6391 phba->sli4_hba.EQCQDBregaddr = 6392 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 6393 phba->sli4_hba.MQDBregaddr = 6394 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 6395 phba->sli4_hba.BMBXregaddr = 6396 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 6397 break; 6398 case LPFC_SLI_INTF_IF_TYPE_1: 6399 default: 6400 dev_printk(KERN_ERR, &phba->pcidev->dev, 6401 "FATAL - unsupported SLI4 interface type - %d\n", 6402 if_type); 6403 break; 6404 } 6405 } 6406 6407 /** 6408 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 6409 * @phba: pointer to lpfc hba data structure. 6410 * 6411 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 6412 * memory map. 6413 **/ 6414 static void 6415 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 6416 { 6417 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6418 LPFC_SLIPORT_IF0_SMPHR; 6419 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6420 LPFC_HST_ISR0; 6421 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6422 LPFC_HST_IMR0; 6423 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6424 LPFC_HST_ISCR0; 6425 } 6426 6427 /** 6428 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 6429 * @phba: pointer to lpfc hba data structure. 6430 * @vf: virtual function number 6431 * 6432 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 6433 * based on the given viftual function number, @vf. 6434 * 6435 * Return 0 if successful, otherwise -ENODEV. 6436 **/ 6437 static int 6438 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 6439 { 6440 if (vf > LPFC_VIR_FUNC_MAX) 6441 return -ENODEV; 6442 6443 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6444 vf * LPFC_VFR_PAGE_SIZE + 6445 LPFC_ULP0_RQ_DOORBELL); 6446 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6447 vf * LPFC_VFR_PAGE_SIZE + 6448 LPFC_ULP0_WQ_DOORBELL); 6449 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6450 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 6451 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6452 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 6453 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6454 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 6455 return 0; 6456 } 6457 6458 /** 6459 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 6460 * @phba: pointer to lpfc hba data structure. 6461 * 6462 * This routine is invoked to create the bootstrap mailbox 6463 * region consistent with the SLI-4 interface spec. This 6464 * routine allocates all memory necessary to communicate 6465 * mailbox commands to the port and sets up all alignment 6466 * needs. No locks are expected to be held when calling 6467 * this routine. 6468 * 6469 * Return codes 6470 * 0 - successful 6471 * -ENOMEM - could not allocated memory. 6472 **/ 6473 static int 6474 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 6475 { 6476 uint32_t bmbx_size; 6477 struct lpfc_dmabuf *dmabuf; 6478 struct dma_address *dma_address; 6479 uint32_t pa_addr; 6480 uint64_t phys_addr; 6481 6482 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6483 if (!dmabuf) 6484 return -ENOMEM; 6485 6486 /* 6487 * The bootstrap mailbox region is comprised of 2 parts 6488 * plus an alignment restriction of 16 bytes. 6489 */ 6490 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 6491 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 6492 bmbx_size, 6493 &dmabuf->phys, 6494 GFP_KERNEL); 6495 if (!dmabuf->virt) { 6496 kfree(dmabuf); 6497 return -ENOMEM; 6498 } 6499 memset(dmabuf->virt, 0, bmbx_size); 6500 6501 /* 6502 * Initialize the bootstrap mailbox pointers now so that the register 6503 * operations are simple later. The mailbox dma address is required 6504 * to be 16-byte aligned. Also align the virtual memory as each 6505 * maibox is copied into the bmbx mailbox region before issuing the 6506 * command to the port. 6507 */ 6508 phba->sli4_hba.bmbx.dmabuf = dmabuf; 6509 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 6510 6511 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 6512 LPFC_ALIGN_16_BYTE); 6513 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 6514 LPFC_ALIGN_16_BYTE); 6515 6516 /* 6517 * Set the high and low physical addresses now. The SLI4 alignment 6518 * requirement is 16 bytes and the mailbox is posted to the port 6519 * as two 30-bit addresses. The other data is a bit marking whether 6520 * the 30-bit address is the high or low address. 6521 * Upcast bmbx aphys to 64bits so shift instruction compiles 6522 * clean on 32 bit machines. 6523 */ 6524 dma_address = &phba->sli4_hba.bmbx.dma_address; 6525 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 6526 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 6527 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 6528 LPFC_BMBX_BIT1_ADDR_HI); 6529 6530 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 6531 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 6532 LPFC_BMBX_BIT1_ADDR_LO); 6533 return 0; 6534 } 6535 6536 /** 6537 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 6538 * @phba: pointer to lpfc hba data structure. 6539 * 6540 * This routine is invoked to teardown the bootstrap mailbox 6541 * region and release all host resources. This routine requires 6542 * the caller to ensure all mailbox commands recovered, no 6543 * additional mailbox comands are sent, and interrupts are disabled 6544 * before calling this routine. 6545 * 6546 **/ 6547 static void 6548 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 6549 { 6550 dma_free_coherent(&phba->pcidev->dev, 6551 phba->sli4_hba.bmbx.bmbx_size, 6552 phba->sli4_hba.bmbx.dmabuf->virt, 6553 phba->sli4_hba.bmbx.dmabuf->phys); 6554 6555 kfree(phba->sli4_hba.bmbx.dmabuf); 6556 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 6557 } 6558 6559 /** 6560 * lpfc_sli4_read_config - Get the config parameters. 6561 * @phba: pointer to lpfc hba data structure. 6562 * 6563 * This routine is invoked to read the configuration parameters from the HBA. 6564 * The configuration parameters are used to set the base and maximum values 6565 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 6566 * allocation for the port. 6567 * 6568 * Return codes 6569 * 0 - successful 6570 * -ENOMEM - No available memory 6571 * -EIO - The mailbox failed to complete successfully. 6572 **/ 6573 int 6574 lpfc_sli4_read_config(struct lpfc_hba *phba) 6575 { 6576 LPFC_MBOXQ_t *pmb; 6577 struct lpfc_mbx_read_config *rd_config; 6578 union lpfc_sli4_cfg_shdr *shdr; 6579 uint32_t shdr_status, shdr_add_status; 6580 struct lpfc_mbx_get_func_cfg *get_func_cfg; 6581 struct lpfc_rsrc_desc_fcfcoe *desc; 6582 char *pdesc_0; 6583 uint32_t desc_count; 6584 int length, i, rc = 0, rc2; 6585 6586 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6587 if (!pmb) { 6588 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6589 "2011 Unable to allocate memory for issuing " 6590 "SLI_CONFIG_SPECIAL mailbox command\n"); 6591 return -ENOMEM; 6592 } 6593 6594 lpfc_read_config(phba, pmb); 6595 6596 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6597 if (rc != MBX_SUCCESS) { 6598 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6599 "2012 Mailbox failed , mbxCmd x%x " 6600 "READ_CONFIG, mbxStatus x%x\n", 6601 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6602 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6603 rc = -EIO; 6604 } else { 6605 rd_config = &pmb->u.mqe.un.rd_config; 6606 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 6607 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 6608 phba->sli4_hba.lnk_info.lnk_tp = 6609 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 6610 phba->sli4_hba.lnk_info.lnk_no = 6611 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 6612 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6613 "3081 lnk_type:%d, lnk_numb:%d\n", 6614 phba->sli4_hba.lnk_info.lnk_tp, 6615 phba->sli4_hba.lnk_info.lnk_no); 6616 } else 6617 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 6618 "3082 Mailbox (x%x) returned ldv:x0\n", 6619 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 6620 phba->sli4_hba.extents_in_use = 6621 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 6622 phba->sli4_hba.max_cfg_param.max_xri = 6623 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 6624 phba->sli4_hba.max_cfg_param.xri_base = 6625 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 6626 phba->sli4_hba.max_cfg_param.max_vpi = 6627 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 6628 phba->sli4_hba.max_cfg_param.vpi_base = 6629 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 6630 phba->sli4_hba.max_cfg_param.max_rpi = 6631 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 6632 phba->sli4_hba.max_cfg_param.rpi_base = 6633 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 6634 phba->sli4_hba.max_cfg_param.max_vfi = 6635 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 6636 phba->sli4_hba.max_cfg_param.vfi_base = 6637 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 6638 phba->sli4_hba.max_cfg_param.max_fcfi = 6639 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 6640 phba->sli4_hba.max_cfg_param.max_eq = 6641 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 6642 phba->sli4_hba.max_cfg_param.max_rq = 6643 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 6644 phba->sli4_hba.max_cfg_param.max_wq = 6645 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 6646 phba->sli4_hba.max_cfg_param.max_cq = 6647 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 6648 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 6649 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 6650 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 6651 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 6652 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 6653 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 6654 phba->max_vports = phba->max_vpi; 6655 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6656 "2003 cfg params Extents? %d " 6657 "XRI(B:%d M:%d), " 6658 "VPI(B:%d M:%d) " 6659 "VFI(B:%d M:%d) " 6660 "RPI(B:%d M:%d) " 6661 "FCFI(Count:%d)\n", 6662 phba->sli4_hba.extents_in_use, 6663 phba->sli4_hba.max_cfg_param.xri_base, 6664 phba->sli4_hba.max_cfg_param.max_xri, 6665 phba->sli4_hba.max_cfg_param.vpi_base, 6666 phba->sli4_hba.max_cfg_param.max_vpi, 6667 phba->sli4_hba.max_cfg_param.vfi_base, 6668 phba->sli4_hba.max_cfg_param.max_vfi, 6669 phba->sli4_hba.max_cfg_param.rpi_base, 6670 phba->sli4_hba.max_cfg_param.max_rpi, 6671 phba->sli4_hba.max_cfg_param.max_fcfi); 6672 } 6673 6674 if (rc) 6675 goto read_cfg_out; 6676 6677 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 6678 if (phba->cfg_hba_queue_depth > 6679 (phba->sli4_hba.max_cfg_param.max_xri - 6680 lpfc_sli4_get_els_iocb_cnt(phba))) 6681 phba->cfg_hba_queue_depth = 6682 phba->sli4_hba.max_cfg_param.max_xri - 6683 lpfc_sli4_get_els_iocb_cnt(phba); 6684 6685 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 6686 LPFC_SLI_INTF_IF_TYPE_2) 6687 goto read_cfg_out; 6688 6689 /* get the pf# and vf# for SLI4 if_type 2 port */ 6690 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 6691 sizeof(struct lpfc_sli4_cfg_mhdr)); 6692 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 6693 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 6694 length, LPFC_SLI4_MBX_EMBED); 6695 6696 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6697 shdr = (union lpfc_sli4_cfg_shdr *) 6698 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 6699 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6700 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6701 if (rc2 || shdr_status || shdr_add_status) { 6702 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6703 "3026 Mailbox failed , mbxCmd x%x " 6704 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 6705 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6706 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6707 goto read_cfg_out; 6708 } 6709 6710 /* search for fc_fcoe resrouce descriptor */ 6711 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 6712 desc_count = get_func_cfg->func_cfg.rsrc_desc_count; 6713 6714 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 6715 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 6716 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 6717 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 6718 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 6719 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 6720 goto read_cfg_out; 6721 6722 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 6723 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 6724 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 6725 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 6726 phba->sli4_hba.iov.pf_number = 6727 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 6728 phba->sli4_hba.iov.vf_number = 6729 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 6730 break; 6731 } 6732 } 6733 6734 if (i < LPFC_RSRC_DESC_MAX_NUM) 6735 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6736 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 6737 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 6738 phba->sli4_hba.iov.vf_number); 6739 else 6740 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6741 "3028 GET_FUNCTION_CONFIG: failed to find " 6742 "Resrouce Descriptor:x%x\n", 6743 LPFC_RSRC_DESC_TYPE_FCFCOE); 6744 6745 read_cfg_out: 6746 mempool_free(pmb, phba->mbox_mem_pool); 6747 return rc; 6748 } 6749 6750 /** 6751 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 6752 * @phba: pointer to lpfc hba data structure. 6753 * 6754 * This routine is invoked to setup the port-side endian order when 6755 * the port if_type is 0. This routine has no function for other 6756 * if_types. 6757 * 6758 * Return codes 6759 * 0 - successful 6760 * -ENOMEM - No available memory 6761 * -EIO - The mailbox failed to complete successfully. 6762 **/ 6763 static int 6764 lpfc_setup_endian_order(struct lpfc_hba *phba) 6765 { 6766 LPFC_MBOXQ_t *mboxq; 6767 uint32_t if_type, rc = 0; 6768 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 6769 HOST_ENDIAN_HIGH_WORD1}; 6770 6771 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 6772 switch (if_type) { 6773 case LPFC_SLI_INTF_IF_TYPE_0: 6774 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6775 GFP_KERNEL); 6776 if (!mboxq) { 6777 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6778 "0492 Unable to allocate memory for " 6779 "issuing SLI_CONFIG_SPECIAL mailbox " 6780 "command\n"); 6781 return -ENOMEM; 6782 } 6783 6784 /* 6785 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 6786 * two words to contain special data values and no other data. 6787 */ 6788 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 6789 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 6790 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6791 if (rc != MBX_SUCCESS) { 6792 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6793 "0493 SLI_CONFIG_SPECIAL mailbox " 6794 "failed with status x%x\n", 6795 rc); 6796 rc = -EIO; 6797 } 6798 mempool_free(mboxq, phba->mbox_mem_pool); 6799 break; 6800 case LPFC_SLI_INTF_IF_TYPE_2: 6801 case LPFC_SLI_INTF_IF_TYPE_1: 6802 default: 6803 break; 6804 } 6805 return rc; 6806 } 6807 6808 /** 6809 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts 6810 * @phba: pointer to lpfc hba data structure. 6811 * 6812 * This routine is invoked to check the user settable queue counts for EQs and 6813 * CQs. after this routine is called the counts will be set to valid values that 6814 * adhere to the constraints of the system's interrupt vectors and the port's 6815 * queue resources. 6816 * 6817 * Return codes 6818 * 0 - successful 6819 * -ENOMEM - No available memory 6820 **/ 6821 static int 6822 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 6823 { 6824 int cfg_fcp_io_channel; 6825 uint32_t cpu; 6826 uint32_t i = 0; 6827 uint32_t j = 0; 6828 6829 6830 /* 6831 * Sanity check for configured queue parameters against the run-time 6832 * device parameters 6833 */ 6834 6835 /* Sanity check on HBA EQ parameters */ 6836 cfg_fcp_io_channel = phba->cfg_fcp_io_channel; 6837 6838 /* It doesn't make sense to have more io channels then online CPUs */ 6839 for_each_present_cpu(cpu) { 6840 if (cpu_online(cpu)) 6841 i++; 6842 j++; 6843 } 6844 phba->sli4_hba.num_online_cpu = i; 6845 phba->sli4_hba.num_present_cpu = j; 6846 6847 if (i < cfg_fcp_io_channel) { 6848 lpfc_printf_log(phba, 6849 KERN_ERR, LOG_INIT, 6850 "3188 Reducing IO channels to match number of " 6851 "online CPUs: from %d to %d\n", 6852 cfg_fcp_io_channel, i); 6853 cfg_fcp_io_channel = i; 6854 } 6855 6856 if (cfg_fcp_io_channel > 6857 phba->sli4_hba.max_cfg_param.max_eq) { 6858 if (phba->sli4_hba.max_cfg_param.max_eq < 6859 LPFC_FCP_IO_CHAN_MIN) { 6860 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6861 "2574 Not enough EQs (%d) from the " 6862 "pci function for supporting FCP " 6863 "EQs (%d)\n", 6864 phba->sli4_hba.max_cfg_param.max_eq, 6865 phba->cfg_fcp_io_channel); 6866 goto out_error; 6867 } 6868 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6869 "2575 Reducing IO channels to match number of " 6870 "available EQs: from %d to %d\n", 6871 cfg_fcp_io_channel, 6872 phba->sli4_hba.max_cfg_param.max_eq); 6873 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq; 6874 } 6875 6876 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */ 6877 6878 /* The actual number of FCP event queues adopted */ 6879 phba->cfg_fcp_eq_count = cfg_fcp_io_channel; 6880 phba->cfg_fcp_wq_count = cfg_fcp_io_channel; 6881 phba->cfg_fcp_io_channel = cfg_fcp_io_channel; 6882 6883 /* Get EQ depth from module parameter, fake the default for now */ 6884 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 6885 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 6886 6887 /* Get CQ depth from module parameter, fake the default for now */ 6888 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 6889 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 6890 6891 return 0; 6892 out_error: 6893 return -ENOMEM; 6894 } 6895 6896 /** 6897 * lpfc_sli4_queue_create - Create all the SLI4 queues 6898 * @phba: pointer to lpfc hba data structure. 6899 * 6900 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 6901 * operation. For each SLI4 queue type, the parameters such as queue entry 6902 * count (queue depth) shall be taken from the module parameter. For now, 6903 * we just use some constant number as place holder. 6904 * 6905 * Return codes 6906 * 0 - successful 6907 * -ENOMEM - No availble memory 6908 * -EIO - The mailbox failed to complete successfully. 6909 **/ 6910 int 6911 lpfc_sli4_queue_create(struct lpfc_hba *phba) 6912 { 6913 struct lpfc_queue *qdesc; 6914 int idx; 6915 6916 /* 6917 * Create HBA Record arrays. 6918 */ 6919 if (!phba->cfg_fcp_io_channel) 6920 return -ERANGE; 6921 6922 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 6923 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 6924 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 6925 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 6926 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 6927 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 6928 6929 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) * 6930 phba->cfg_fcp_io_channel), GFP_KERNEL); 6931 if (!phba->sli4_hba.hba_eq) { 6932 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6933 "2576 Failed allocate memory for " 6934 "fast-path EQ record array\n"); 6935 goto out_error; 6936 } 6937 6938 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 6939 phba->cfg_fcp_io_channel), GFP_KERNEL); 6940 if (!phba->sli4_hba.fcp_cq) { 6941 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6942 "2577 Failed allocate memory for fast-path " 6943 "CQ record array\n"); 6944 goto out_error; 6945 } 6946 6947 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 6948 phba->cfg_fcp_io_channel), GFP_KERNEL); 6949 if (!phba->sli4_hba.fcp_wq) { 6950 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6951 "2578 Failed allocate memory for fast-path " 6952 "WQ record array\n"); 6953 goto out_error; 6954 } 6955 6956 /* 6957 * Since the first EQ can have multiple CQs associated with it, 6958 * this array is used to quickly see if we have a FCP fast-path 6959 * CQ match. 6960 */ 6961 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) * 6962 phba->cfg_fcp_io_channel), GFP_KERNEL); 6963 if (!phba->sli4_hba.fcp_cq_map) { 6964 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6965 "2545 Failed allocate memory for fast-path " 6966 "CQ map\n"); 6967 goto out_error; 6968 } 6969 6970 /* 6971 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies 6972 * how many EQs to create. 6973 */ 6974 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 6975 6976 /* Create EQs */ 6977 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6978 phba->sli4_hba.eq_ecount); 6979 if (!qdesc) { 6980 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6981 "0497 Failed allocate EQ (%d)\n", idx); 6982 goto out_error; 6983 } 6984 phba->sli4_hba.hba_eq[idx] = qdesc; 6985 6986 /* Create Fast Path FCP CQs */ 6987 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6988 phba->sli4_hba.cq_ecount); 6989 if (!qdesc) { 6990 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6991 "0499 Failed allocate fast-path FCP " 6992 "CQ (%d)\n", idx); 6993 goto out_error; 6994 } 6995 phba->sli4_hba.fcp_cq[idx] = qdesc; 6996 6997 /* Create Fast Path FCP WQs */ 6998 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6999 phba->sli4_hba.wq_ecount); 7000 if (!qdesc) { 7001 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7002 "0503 Failed allocate fast-path FCP " 7003 "WQ (%d)\n", idx); 7004 goto out_error; 7005 } 7006 phba->sli4_hba.fcp_wq[idx] = qdesc; 7007 } 7008 7009 7010 /* 7011 * Create Slow Path Completion Queues (CQs) 7012 */ 7013 7014 /* Create slow-path Mailbox Command Complete Queue */ 7015 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7016 phba->sli4_hba.cq_ecount); 7017 if (!qdesc) { 7018 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7019 "0500 Failed allocate slow-path mailbox CQ\n"); 7020 goto out_error; 7021 } 7022 phba->sli4_hba.mbx_cq = qdesc; 7023 7024 /* Create slow-path ELS Complete Queue */ 7025 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7026 phba->sli4_hba.cq_ecount); 7027 if (!qdesc) { 7028 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7029 "0501 Failed allocate slow-path ELS CQ\n"); 7030 goto out_error; 7031 } 7032 phba->sli4_hba.els_cq = qdesc; 7033 7034 7035 /* 7036 * Create Slow Path Work Queues (WQs) 7037 */ 7038 7039 /* Create Mailbox Command Queue */ 7040 7041 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 7042 phba->sli4_hba.mq_ecount); 7043 if (!qdesc) { 7044 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7045 "0505 Failed allocate slow-path MQ\n"); 7046 goto out_error; 7047 } 7048 phba->sli4_hba.mbx_wq = qdesc; 7049 7050 /* 7051 * Create ELS Work Queues 7052 */ 7053 7054 /* Create slow-path ELS Work Queue */ 7055 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 7056 phba->sli4_hba.wq_ecount); 7057 if (!qdesc) { 7058 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7059 "0504 Failed allocate slow-path ELS WQ\n"); 7060 goto out_error; 7061 } 7062 phba->sli4_hba.els_wq = qdesc; 7063 7064 /* 7065 * Create Receive Queue (RQ) 7066 */ 7067 7068 /* Create Receive Queue for header */ 7069 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 7070 phba->sli4_hba.rq_ecount); 7071 if (!qdesc) { 7072 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7073 "0506 Failed allocate receive HRQ\n"); 7074 goto out_error; 7075 } 7076 phba->sli4_hba.hdr_rq = qdesc; 7077 7078 /* Create Receive Queue for data */ 7079 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 7080 phba->sli4_hba.rq_ecount); 7081 if (!qdesc) { 7082 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7083 "0507 Failed allocate receive DRQ\n"); 7084 goto out_error; 7085 } 7086 phba->sli4_hba.dat_rq = qdesc; 7087 7088 return 0; 7089 7090 out_error: 7091 lpfc_sli4_queue_destroy(phba); 7092 return -ENOMEM; 7093 } 7094 7095 /** 7096 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 7097 * @phba: pointer to lpfc hba data structure. 7098 * 7099 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 7100 * operation. 7101 * 7102 * Return codes 7103 * 0 - successful 7104 * -ENOMEM - No available memory 7105 * -EIO - The mailbox failed to complete successfully. 7106 **/ 7107 void 7108 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 7109 { 7110 int idx; 7111 7112 if (phba->sli4_hba.hba_eq != NULL) { 7113 /* Release HBA event queue */ 7114 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 7115 if (phba->sli4_hba.hba_eq[idx] != NULL) { 7116 lpfc_sli4_queue_free( 7117 phba->sli4_hba.hba_eq[idx]); 7118 phba->sli4_hba.hba_eq[idx] = NULL; 7119 } 7120 } 7121 kfree(phba->sli4_hba.hba_eq); 7122 phba->sli4_hba.hba_eq = NULL; 7123 } 7124 7125 if (phba->sli4_hba.fcp_cq != NULL) { 7126 /* Release FCP completion queue */ 7127 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 7128 if (phba->sli4_hba.fcp_cq[idx] != NULL) { 7129 lpfc_sli4_queue_free( 7130 phba->sli4_hba.fcp_cq[idx]); 7131 phba->sli4_hba.fcp_cq[idx] = NULL; 7132 } 7133 } 7134 kfree(phba->sli4_hba.fcp_cq); 7135 phba->sli4_hba.fcp_cq = NULL; 7136 } 7137 7138 if (phba->sli4_hba.fcp_wq != NULL) { 7139 /* Release FCP work queue */ 7140 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 7141 if (phba->sli4_hba.fcp_wq[idx] != NULL) { 7142 lpfc_sli4_queue_free( 7143 phba->sli4_hba.fcp_wq[idx]); 7144 phba->sli4_hba.fcp_wq[idx] = NULL; 7145 } 7146 } 7147 kfree(phba->sli4_hba.fcp_wq); 7148 phba->sli4_hba.fcp_wq = NULL; 7149 } 7150 7151 if (phba->pci_bar0_memmap_p) { 7152 iounmap(phba->pci_bar0_memmap_p); 7153 phba->pci_bar0_memmap_p = NULL; 7154 } 7155 if (phba->pci_bar2_memmap_p) { 7156 iounmap(phba->pci_bar2_memmap_p); 7157 phba->pci_bar2_memmap_p = NULL; 7158 } 7159 if (phba->pci_bar4_memmap_p) { 7160 iounmap(phba->pci_bar4_memmap_p); 7161 phba->pci_bar4_memmap_p = NULL; 7162 } 7163 7164 /* Release FCP CQ mapping array */ 7165 if (phba->sli4_hba.fcp_cq_map != NULL) { 7166 kfree(phba->sli4_hba.fcp_cq_map); 7167 phba->sli4_hba.fcp_cq_map = NULL; 7168 } 7169 7170 /* Release mailbox command work queue */ 7171 if (phba->sli4_hba.mbx_wq != NULL) { 7172 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 7173 phba->sli4_hba.mbx_wq = NULL; 7174 } 7175 7176 /* Release ELS work queue */ 7177 if (phba->sli4_hba.els_wq != NULL) { 7178 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 7179 phba->sli4_hba.els_wq = NULL; 7180 } 7181 7182 /* Release unsolicited receive queue */ 7183 if (phba->sli4_hba.hdr_rq != NULL) { 7184 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 7185 phba->sli4_hba.hdr_rq = NULL; 7186 } 7187 if (phba->sli4_hba.dat_rq != NULL) { 7188 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 7189 phba->sli4_hba.dat_rq = NULL; 7190 } 7191 7192 /* Release ELS complete queue */ 7193 if (phba->sli4_hba.els_cq != NULL) { 7194 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 7195 phba->sli4_hba.els_cq = NULL; 7196 } 7197 7198 /* Release mailbox command complete queue */ 7199 if (phba->sli4_hba.mbx_cq != NULL) { 7200 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 7201 phba->sli4_hba.mbx_cq = NULL; 7202 } 7203 7204 return; 7205 } 7206 7207 /** 7208 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 7209 * @phba: pointer to lpfc hba data structure. 7210 * 7211 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 7212 * operation. 7213 * 7214 * Return codes 7215 * 0 - successful 7216 * -ENOMEM - No available memory 7217 * -EIO - The mailbox failed to complete successfully. 7218 **/ 7219 int 7220 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 7221 { 7222 struct lpfc_sli *psli = &phba->sli; 7223 struct lpfc_sli_ring *pring; 7224 int rc = -ENOMEM; 7225 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 7226 int fcp_cq_index = 0; 7227 uint32_t shdr_status, shdr_add_status; 7228 union lpfc_sli4_cfg_shdr *shdr; 7229 LPFC_MBOXQ_t *mboxq; 7230 uint32_t length; 7231 7232 /* Check for dual-ULP support */ 7233 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7234 if (!mboxq) { 7235 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7236 "3249 Unable to allocate memory for " 7237 "QUERY_FW_CFG mailbox command\n"); 7238 return -ENOMEM; 7239 } 7240 length = (sizeof(struct lpfc_mbx_query_fw_config) - 7241 sizeof(struct lpfc_sli4_cfg_mhdr)); 7242 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7243 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 7244 length, LPFC_SLI4_MBX_EMBED); 7245 7246 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7247 7248 shdr = (union lpfc_sli4_cfg_shdr *) 7249 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7250 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7251 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7252 if (shdr_status || shdr_add_status || rc) { 7253 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7254 "3250 QUERY_FW_CFG mailbox failed with status " 7255 "x%x add_status x%x, mbx status x%x\n", 7256 shdr_status, shdr_add_status, rc); 7257 if (rc != MBX_TIMEOUT) 7258 mempool_free(mboxq, phba->mbox_mem_pool); 7259 rc = -ENXIO; 7260 goto out_error; 7261 } 7262 7263 phba->sli4_hba.fw_func_mode = 7264 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; 7265 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; 7266 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; 7267 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7268 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " 7269 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, 7270 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); 7271 7272 if (rc != MBX_TIMEOUT) 7273 mempool_free(mboxq, phba->mbox_mem_pool); 7274 7275 /* 7276 * Set up HBA Event Queues (EQs) 7277 */ 7278 7279 /* Set up HBA event queue */ 7280 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) { 7281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7282 "3147 Fast-path EQs not allocated\n"); 7283 rc = -ENOMEM; 7284 goto out_error; 7285 } 7286 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) { 7287 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) { 7288 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7289 "0522 Fast-path EQ (%d) not " 7290 "allocated\n", fcp_eqidx); 7291 rc = -ENOMEM; 7292 goto out_destroy_hba_eq; 7293 } 7294 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx], 7295 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel)); 7296 if (rc) { 7297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7298 "0523 Failed setup of fast-path EQ " 7299 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 7300 goto out_destroy_hba_eq; 7301 } 7302 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7303 "2584 HBA EQ setup: " 7304 "queue[%d]-id=%d\n", fcp_eqidx, 7305 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id); 7306 } 7307 7308 /* Set up fast-path FCP Response Complete Queue */ 7309 if (!phba->sli4_hba.fcp_cq) { 7310 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7311 "3148 Fast-path FCP CQ array not " 7312 "allocated\n"); 7313 rc = -ENOMEM; 7314 goto out_destroy_hba_eq; 7315 } 7316 7317 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) { 7318 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 7319 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7320 "0526 Fast-path FCP CQ (%d) not " 7321 "allocated\n", fcp_cqidx); 7322 rc = -ENOMEM; 7323 goto out_destroy_fcp_cq; 7324 } 7325 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 7326 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP); 7327 if (rc) { 7328 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7329 "0527 Failed setup of fast-path FCP " 7330 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 7331 goto out_destroy_fcp_cq; 7332 } 7333 7334 /* Setup fcp_cq_map for fast lookup */ 7335 phba->sli4_hba.fcp_cq_map[fcp_cqidx] = 7336 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id; 7337 7338 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7339 "2588 FCP CQ setup: cq[%d]-id=%d, " 7340 "parent seq[%d]-id=%d\n", 7341 fcp_cqidx, 7342 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 7343 fcp_cqidx, 7344 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id); 7345 } 7346 7347 /* Set up fast-path FCP Work Queue */ 7348 if (!phba->sli4_hba.fcp_wq) { 7349 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7350 "3149 Fast-path FCP WQ array not " 7351 "allocated\n"); 7352 rc = -ENOMEM; 7353 goto out_destroy_fcp_cq; 7354 } 7355 7356 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) { 7357 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 7358 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7359 "0534 Fast-path FCP WQ (%d) not " 7360 "allocated\n", fcp_wqidx); 7361 rc = -ENOMEM; 7362 goto out_destroy_fcp_wq; 7363 } 7364 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 7365 phba->sli4_hba.fcp_cq[fcp_wqidx], 7366 LPFC_FCP); 7367 if (rc) { 7368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7369 "0535 Failed setup of fast-path FCP " 7370 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 7371 goto out_destroy_fcp_wq; 7372 } 7373 7374 /* Bind this WQ to the next FCP ring */ 7375 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx]; 7376 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx]; 7377 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring; 7378 7379 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7380 "2591 FCP WQ setup: wq[%d]-id=%d, " 7381 "parent cq[%d]-id=%d\n", 7382 fcp_wqidx, 7383 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 7384 fcp_cq_index, 7385 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id); 7386 } 7387 /* 7388 * Set up Complete Queues (CQs) 7389 */ 7390 7391 /* Set up slow-path MBOX Complete Queue as the first CQ */ 7392 if (!phba->sli4_hba.mbx_cq) { 7393 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7394 "0528 Mailbox CQ not allocated\n"); 7395 rc = -ENOMEM; 7396 goto out_destroy_fcp_wq; 7397 } 7398 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, 7399 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX); 7400 if (rc) { 7401 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7402 "0529 Failed setup of slow-path mailbox CQ: " 7403 "rc = 0x%x\n", rc); 7404 goto out_destroy_fcp_wq; 7405 } 7406 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7407 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 7408 phba->sli4_hba.mbx_cq->queue_id, 7409 phba->sli4_hba.hba_eq[0]->queue_id); 7410 7411 /* Set up slow-path ELS Complete Queue */ 7412 if (!phba->sli4_hba.els_cq) { 7413 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7414 "0530 ELS CQ not allocated\n"); 7415 rc = -ENOMEM; 7416 goto out_destroy_mbx_cq; 7417 } 7418 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, 7419 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS); 7420 if (rc) { 7421 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7422 "0531 Failed setup of slow-path ELS CQ: " 7423 "rc = 0x%x\n", rc); 7424 goto out_destroy_mbx_cq; 7425 } 7426 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7427 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 7428 phba->sli4_hba.els_cq->queue_id, 7429 phba->sli4_hba.hba_eq[0]->queue_id); 7430 7431 /* 7432 * Set up all the Work Queues (WQs) 7433 */ 7434 7435 /* Set up Mailbox Command Queue */ 7436 if (!phba->sli4_hba.mbx_wq) { 7437 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7438 "0538 Slow-path MQ not allocated\n"); 7439 rc = -ENOMEM; 7440 goto out_destroy_els_cq; 7441 } 7442 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 7443 phba->sli4_hba.mbx_cq, LPFC_MBOX); 7444 if (rc) { 7445 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7446 "0539 Failed setup of slow-path MQ: " 7447 "rc = 0x%x\n", rc); 7448 goto out_destroy_els_cq; 7449 } 7450 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7451 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 7452 phba->sli4_hba.mbx_wq->queue_id, 7453 phba->sli4_hba.mbx_cq->queue_id); 7454 7455 /* Set up slow-path ELS Work Queue */ 7456 if (!phba->sli4_hba.els_wq) { 7457 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7458 "0536 Slow-path ELS WQ not allocated\n"); 7459 rc = -ENOMEM; 7460 goto out_destroy_mbx_wq; 7461 } 7462 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 7463 phba->sli4_hba.els_cq, LPFC_ELS); 7464 if (rc) { 7465 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7466 "0537 Failed setup of slow-path ELS WQ: " 7467 "rc = 0x%x\n", rc); 7468 goto out_destroy_mbx_wq; 7469 } 7470 7471 /* Bind this WQ to the ELS ring */ 7472 pring = &psli->ring[LPFC_ELS_RING]; 7473 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq; 7474 phba->sli4_hba.els_cq->pring = pring; 7475 7476 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7477 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 7478 phba->sli4_hba.els_wq->queue_id, 7479 phba->sli4_hba.els_cq->queue_id); 7480 7481 /* 7482 * Create Receive Queue (RQ) 7483 */ 7484 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 7485 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7486 "0540 Receive Queue not allocated\n"); 7487 rc = -ENOMEM; 7488 goto out_destroy_els_wq; 7489 } 7490 7491 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ); 7492 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ); 7493 7494 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 7495 phba->sli4_hba.els_cq, LPFC_USOL); 7496 if (rc) { 7497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7498 "0541 Failed setup of Receive Queue: " 7499 "rc = 0x%x\n", rc); 7500 goto out_destroy_fcp_wq; 7501 } 7502 7503 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7504 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 7505 "parent cq-id=%d\n", 7506 phba->sli4_hba.hdr_rq->queue_id, 7507 phba->sli4_hba.dat_rq->queue_id, 7508 phba->sli4_hba.els_cq->queue_id); 7509 return 0; 7510 7511 out_destroy_els_wq: 7512 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7513 out_destroy_mbx_wq: 7514 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7515 out_destroy_els_cq: 7516 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7517 out_destroy_mbx_cq: 7518 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7519 out_destroy_fcp_wq: 7520 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 7521 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 7522 out_destroy_fcp_cq: 7523 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 7524 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 7525 out_destroy_hba_eq: 7526 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 7527 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]); 7528 out_error: 7529 return rc; 7530 } 7531 7532 /** 7533 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 7534 * @phba: pointer to lpfc hba data structure. 7535 * 7536 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 7537 * operation. 7538 * 7539 * Return codes 7540 * 0 - successful 7541 * -ENOMEM - No available memory 7542 * -EIO - The mailbox failed to complete successfully. 7543 **/ 7544 void 7545 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 7546 { 7547 int fcp_qidx; 7548 7549 /* Unset mailbox command work queue */ 7550 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7551 /* Unset ELS work queue */ 7552 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7553 /* Unset unsolicited receive queue */ 7554 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 7555 /* Unset FCP work queue */ 7556 if (phba->sli4_hba.fcp_wq) { 7557 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7558 fcp_qidx++) 7559 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 7560 } 7561 /* Unset mailbox command complete queue */ 7562 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7563 /* Unset ELS complete queue */ 7564 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7565 /* Unset FCP response complete queue */ 7566 if (phba->sli4_hba.fcp_cq) { 7567 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7568 fcp_qidx++) 7569 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 7570 } 7571 /* Unset fast-path event queue */ 7572 if (phba->sli4_hba.hba_eq) { 7573 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7574 fcp_qidx++) 7575 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]); 7576 } 7577 } 7578 7579 /** 7580 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 7581 * @phba: pointer to lpfc hba data structure. 7582 * 7583 * This routine is invoked to allocate and set up a pool of completion queue 7584 * events. The body of the completion queue event is a completion queue entry 7585 * CQE. For now, this pool is used for the interrupt service routine to queue 7586 * the following HBA completion queue events for the worker thread to process: 7587 * - Mailbox asynchronous events 7588 * - Receive queue completion unsolicited events 7589 * Later, this can be used for all the slow-path events. 7590 * 7591 * Return codes 7592 * 0 - successful 7593 * -ENOMEM - No available memory 7594 **/ 7595 static int 7596 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 7597 { 7598 struct lpfc_cq_event *cq_event; 7599 int i; 7600 7601 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 7602 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 7603 if (!cq_event) 7604 goto out_pool_create_fail; 7605 list_add_tail(&cq_event->list, 7606 &phba->sli4_hba.sp_cqe_event_pool); 7607 } 7608 return 0; 7609 7610 out_pool_create_fail: 7611 lpfc_sli4_cq_event_pool_destroy(phba); 7612 return -ENOMEM; 7613 } 7614 7615 /** 7616 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 7617 * @phba: pointer to lpfc hba data structure. 7618 * 7619 * This routine is invoked to free the pool of completion queue events at 7620 * driver unload time. Note that, it is the responsibility of the driver 7621 * cleanup routine to free all the outstanding completion-queue events 7622 * allocated from this pool back into the pool before invoking this routine 7623 * to destroy the pool. 7624 **/ 7625 static void 7626 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 7627 { 7628 struct lpfc_cq_event *cq_event, *next_cq_event; 7629 7630 list_for_each_entry_safe(cq_event, next_cq_event, 7631 &phba->sli4_hba.sp_cqe_event_pool, list) { 7632 list_del(&cq_event->list); 7633 kfree(cq_event); 7634 } 7635 } 7636 7637 /** 7638 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7639 * @phba: pointer to lpfc hba data structure. 7640 * 7641 * This routine is the lock free version of the API invoked to allocate a 7642 * completion-queue event from the free pool. 7643 * 7644 * Return: Pointer to the newly allocated completion-queue event if successful 7645 * NULL otherwise. 7646 **/ 7647 struct lpfc_cq_event * 7648 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7649 { 7650 struct lpfc_cq_event *cq_event = NULL; 7651 7652 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 7653 struct lpfc_cq_event, list); 7654 return cq_event; 7655 } 7656 7657 /** 7658 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7659 * @phba: pointer to lpfc hba data structure. 7660 * 7661 * This routine is the lock version of the API invoked to allocate a 7662 * completion-queue event from the free pool. 7663 * 7664 * Return: Pointer to the newly allocated completion-queue event if successful 7665 * NULL otherwise. 7666 **/ 7667 struct lpfc_cq_event * 7668 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7669 { 7670 struct lpfc_cq_event *cq_event; 7671 unsigned long iflags; 7672 7673 spin_lock_irqsave(&phba->hbalock, iflags); 7674 cq_event = __lpfc_sli4_cq_event_alloc(phba); 7675 spin_unlock_irqrestore(&phba->hbalock, iflags); 7676 return cq_event; 7677 } 7678 7679 /** 7680 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7681 * @phba: pointer to lpfc hba data structure. 7682 * @cq_event: pointer to the completion queue event to be freed. 7683 * 7684 * This routine is the lock free version of the API invoked to release a 7685 * completion-queue event back into the free pool. 7686 **/ 7687 void 7688 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7689 struct lpfc_cq_event *cq_event) 7690 { 7691 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 7692 } 7693 7694 /** 7695 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7696 * @phba: pointer to lpfc hba data structure. 7697 * @cq_event: pointer to the completion queue event to be freed. 7698 * 7699 * This routine is the lock version of the API invoked to release a 7700 * completion-queue event back into the free pool. 7701 **/ 7702 void 7703 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7704 struct lpfc_cq_event *cq_event) 7705 { 7706 unsigned long iflags; 7707 spin_lock_irqsave(&phba->hbalock, iflags); 7708 __lpfc_sli4_cq_event_release(phba, cq_event); 7709 spin_unlock_irqrestore(&phba->hbalock, iflags); 7710 } 7711 7712 /** 7713 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 7714 * @phba: pointer to lpfc hba data structure. 7715 * 7716 * This routine is to free all the pending completion-queue events to the 7717 * back into the free pool for device reset. 7718 **/ 7719 static void 7720 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 7721 { 7722 LIST_HEAD(cqelist); 7723 struct lpfc_cq_event *cqe; 7724 unsigned long iflags; 7725 7726 /* Retrieve all the pending WCQEs from pending WCQE lists */ 7727 spin_lock_irqsave(&phba->hbalock, iflags); 7728 /* Pending FCP XRI abort events */ 7729 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 7730 &cqelist); 7731 /* Pending ELS XRI abort events */ 7732 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 7733 &cqelist); 7734 /* Pending asynnc events */ 7735 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 7736 &cqelist); 7737 spin_unlock_irqrestore(&phba->hbalock, iflags); 7738 7739 while (!list_empty(&cqelist)) { 7740 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 7741 lpfc_sli4_cq_event_release(phba, cqe); 7742 } 7743 } 7744 7745 /** 7746 * lpfc_pci_function_reset - Reset pci function. 7747 * @phba: pointer to lpfc hba data structure. 7748 * 7749 * This routine is invoked to request a PCI function reset. It will destroys 7750 * all resources assigned to the PCI function which originates this request. 7751 * 7752 * Return codes 7753 * 0 - successful 7754 * -ENOMEM - No available memory 7755 * -EIO - The mailbox failed to complete successfully. 7756 **/ 7757 int 7758 lpfc_pci_function_reset(struct lpfc_hba *phba) 7759 { 7760 LPFC_MBOXQ_t *mboxq; 7761 uint32_t rc = 0, if_type; 7762 uint32_t shdr_status, shdr_add_status; 7763 uint32_t rdy_chk, num_resets = 0, reset_again = 0; 7764 union lpfc_sli4_cfg_shdr *shdr; 7765 struct lpfc_register reg_data; 7766 uint16_t devid; 7767 7768 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7769 switch (if_type) { 7770 case LPFC_SLI_INTF_IF_TYPE_0: 7771 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7772 GFP_KERNEL); 7773 if (!mboxq) { 7774 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7775 "0494 Unable to allocate memory for " 7776 "issuing SLI_FUNCTION_RESET mailbox " 7777 "command\n"); 7778 return -ENOMEM; 7779 } 7780 7781 /* Setup PCI function reset mailbox-ioctl command */ 7782 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7783 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 7784 LPFC_SLI4_MBX_EMBED); 7785 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7786 shdr = (union lpfc_sli4_cfg_shdr *) 7787 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7788 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7789 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7790 &shdr->response); 7791 if (rc != MBX_TIMEOUT) 7792 mempool_free(mboxq, phba->mbox_mem_pool); 7793 if (shdr_status || shdr_add_status || rc) { 7794 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7795 "0495 SLI_FUNCTION_RESET mailbox " 7796 "failed with status x%x add_status x%x," 7797 " mbx status x%x\n", 7798 shdr_status, shdr_add_status, rc); 7799 rc = -ENXIO; 7800 } 7801 break; 7802 case LPFC_SLI_INTF_IF_TYPE_2: 7803 for (num_resets = 0; 7804 num_resets < MAX_IF_TYPE_2_RESETS; 7805 num_resets++) { 7806 reg_data.word0 = 0; 7807 bf_set(lpfc_sliport_ctrl_end, ®_data, 7808 LPFC_SLIPORT_LITTLE_ENDIAN); 7809 bf_set(lpfc_sliport_ctrl_ip, ®_data, 7810 LPFC_SLIPORT_INIT_PORT); 7811 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 7812 CTRLregaddr); 7813 /* flush */ 7814 pci_read_config_word(phba->pcidev, 7815 PCI_DEVICE_ID, &devid); 7816 /* 7817 * Poll the Port Status Register and wait for RDY for 7818 * up to 10 seconds. If the port doesn't respond, treat 7819 * it as an error. If the port responds with RN, start 7820 * the loop again. 7821 */ 7822 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { 7823 msleep(10); 7824 if (lpfc_readl(phba->sli4_hba.u.if_type2. 7825 STATUSregaddr, ®_data.word0)) { 7826 rc = -ENODEV; 7827 goto out; 7828 } 7829 if (bf_get(lpfc_sliport_status_rn, ®_data)) 7830 reset_again++; 7831 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 7832 break; 7833 } 7834 7835 /* 7836 * If the port responds to the init request with 7837 * reset needed, delay for a bit and restart the loop. 7838 */ 7839 if (reset_again && (rdy_chk < 1000)) { 7840 msleep(10); 7841 reset_again = 0; 7842 continue; 7843 } 7844 7845 /* Detect any port errors. */ 7846 if ((bf_get(lpfc_sliport_status_err, ®_data)) || 7847 (rdy_chk >= 1000)) { 7848 phba->work_status[0] = readl( 7849 phba->sli4_hba.u.if_type2.ERR1regaddr); 7850 phba->work_status[1] = readl( 7851 phba->sli4_hba.u.if_type2.ERR2regaddr); 7852 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7853 "2890 Port error detected during port " 7854 "reset(%d): wait_tmo:%d ms, " 7855 "port status reg 0x%x, " 7856 "error 1=0x%x, error 2=0x%x\n", 7857 num_resets, rdy_chk*10, 7858 reg_data.word0, 7859 phba->work_status[0], 7860 phba->work_status[1]); 7861 rc = -ENODEV; 7862 } 7863 7864 /* 7865 * Terminate the outer loop provided the Port indicated 7866 * ready within 10 seconds. 7867 */ 7868 if (rdy_chk < 1000) 7869 break; 7870 } 7871 /* delay driver action following IF_TYPE_2 function reset */ 7872 msleep(100); 7873 break; 7874 case LPFC_SLI_INTF_IF_TYPE_1: 7875 default: 7876 break; 7877 } 7878 7879 out: 7880 /* Catch the not-ready port failure after a port reset. */ 7881 if (num_resets >= MAX_IF_TYPE_2_RESETS) { 7882 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7883 "3317 HBA not functional: IP Reset Failed " 7884 "after (%d) retries, try: " 7885 "echo fw_reset > board_mode\n", num_resets); 7886 rc = -ENODEV; 7887 } 7888 7889 return rc; 7890 } 7891 7892 /** 7893 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 7894 * @phba: pointer to lpfc hba data structure. 7895 * 7896 * This routine is invoked to set up the PCI device memory space for device 7897 * with SLI-4 interface spec. 7898 * 7899 * Return codes 7900 * 0 - successful 7901 * other values - error 7902 **/ 7903 static int 7904 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 7905 { 7906 struct pci_dev *pdev; 7907 unsigned long bar0map_len, bar1map_len, bar2map_len; 7908 int error = -ENODEV; 7909 uint32_t if_type; 7910 7911 /* Obtain PCI device reference */ 7912 if (!phba->pcidev) 7913 return error; 7914 else 7915 pdev = phba->pcidev; 7916 7917 /* Set the device DMA mask size */ 7918 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7919 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7920 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7921 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7922 return error; 7923 } 7924 } 7925 7926 /* 7927 * The BARs and register set definitions and offset locations are 7928 * dependent on the if_type. 7929 */ 7930 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 7931 &phba->sli4_hba.sli_intf.word0)) { 7932 return error; 7933 } 7934 7935 /* There is no SLI3 failback for SLI4 devices. */ 7936 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 7937 LPFC_SLI_INTF_VALID) { 7938 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7939 "2894 SLI_INTF reg contents invalid " 7940 "sli_intf reg 0x%x\n", 7941 phba->sli4_hba.sli_intf.word0); 7942 return error; 7943 } 7944 7945 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7946 /* 7947 * Get the bus address of SLI4 device Bar regions and the 7948 * number of bytes required by each mapping. The mapping of the 7949 * particular PCI BARs regions is dependent on the type of 7950 * SLI4 device. 7951 */ 7952 if (pci_resource_start(pdev, 0)) { 7953 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7954 bar0map_len = pci_resource_len(pdev, 0); 7955 7956 /* 7957 * Map SLI4 PCI Config Space Register base to a kernel virtual 7958 * addr 7959 */ 7960 phba->sli4_hba.conf_regs_memmap_p = 7961 ioremap(phba->pci_bar0_map, bar0map_len); 7962 if (!phba->sli4_hba.conf_regs_memmap_p) { 7963 dev_printk(KERN_ERR, &pdev->dev, 7964 "ioremap failed for SLI4 PCI config " 7965 "registers.\n"); 7966 goto out; 7967 } 7968 /* Set up BAR0 PCI config space register memory map */ 7969 lpfc_sli4_bar0_register_memmap(phba, if_type); 7970 } else { 7971 phba->pci_bar0_map = pci_resource_start(pdev, 1); 7972 bar0map_len = pci_resource_len(pdev, 1); 7973 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7974 dev_printk(KERN_ERR, &pdev->dev, 7975 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 7976 goto out; 7977 } 7978 phba->sli4_hba.conf_regs_memmap_p = 7979 ioremap(phba->pci_bar0_map, bar0map_len); 7980 if (!phba->sli4_hba.conf_regs_memmap_p) { 7981 dev_printk(KERN_ERR, &pdev->dev, 7982 "ioremap failed for SLI4 PCI config " 7983 "registers.\n"); 7984 goto out; 7985 } 7986 lpfc_sli4_bar0_register_memmap(phba, if_type); 7987 } 7988 7989 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7990 (pci_resource_start(pdev, 2))) { 7991 /* 7992 * Map SLI4 if type 0 HBA Control Register base to a kernel 7993 * virtual address and setup the registers. 7994 */ 7995 phba->pci_bar1_map = pci_resource_start(pdev, 2); 7996 bar1map_len = pci_resource_len(pdev, 2); 7997 phba->sli4_hba.ctrl_regs_memmap_p = 7998 ioremap(phba->pci_bar1_map, bar1map_len); 7999 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 8000 dev_printk(KERN_ERR, &pdev->dev, 8001 "ioremap failed for SLI4 HBA control registers.\n"); 8002 goto out_iounmap_conf; 8003 } 8004 lpfc_sli4_bar1_register_memmap(phba); 8005 } 8006 8007 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 8008 (pci_resource_start(pdev, 4))) { 8009 /* 8010 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 8011 * virtual address and setup the registers. 8012 */ 8013 phba->pci_bar2_map = pci_resource_start(pdev, 4); 8014 bar2map_len = pci_resource_len(pdev, 4); 8015 phba->sli4_hba.drbl_regs_memmap_p = 8016 ioremap(phba->pci_bar2_map, bar2map_len); 8017 if (!phba->sli4_hba.drbl_regs_memmap_p) { 8018 dev_printk(KERN_ERR, &pdev->dev, 8019 "ioremap failed for SLI4 HBA doorbell registers.\n"); 8020 goto out_iounmap_ctrl; 8021 } 8022 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 8023 if (error) 8024 goto out_iounmap_all; 8025 } 8026 8027 return 0; 8028 8029 out_iounmap_all: 8030 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 8031 out_iounmap_ctrl: 8032 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 8033 out_iounmap_conf: 8034 iounmap(phba->sli4_hba.conf_regs_memmap_p); 8035 out: 8036 return error; 8037 } 8038 8039 /** 8040 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 8041 * @phba: pointer to lpfc hba data structure. 8042 * 8043 * This routine is invoked to unset the PCI device memory space for device 8044 * with SLI-4 interface spec. 8045 **/ 8046 static void 8047 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 8048 { 8049 uint32_t if_type; 8050 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 8051 8052 switch (if_type) { 8053 case LPFC_SLI_INTF_IF_TYPE_0: 8054 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 8055 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 8056 iounmap(phba->sli4_hba.conf_regs_memmap_p); 8057 break; 8058 case LPFC_SLI_INTF_IF_TYPE_2: 8059 iounmap(phba->sli4_hba.conf_regs_memmap_p); 8060 break; 8061 case LPFC_SLI_INTF_IF_TYPE_1: 8062 default: 8063 dev_printk(KERN_ERR, &phba->pcidev->dev, 8064 "FATAL - unsupported SLI4 interface type - %d\n", 8065 if_type); 8066 break; 8067 } 8068 } 8069 8070 /** 8071 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 8072 * @phba: pointer to lpfc hba data structure. 8073 * 8074 * This routine is invoked to enable the MSI-X interrupt vectors to device 8075 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 8076 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 8077 * invoked, enables either all or nothing, depending on the current 8078 * availability of PCI vector resources. The device driver is responsible 8079 * for calling the individual request_irq() to register each MSI-X vector 8080 * with a interrupt handler, which is done in this function. Note that 8081 * later when device is unloading, the driver should always call free_irq() 8082 * on all MSI-X vectors it has done request_irq() on before calling 8083 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 8084 * will be left with MSI-X enabled and leaks its vectors. 8085 * 8086 * Return codes 8087 * 0 - successful 8088 * other values - error 8089 **/ 8090 static int 8091 lpfc_sli_enable_msix(struct lpfc_hba *phba) 8092 { 8093 int rc, i; 8094 LPFC_MBOXQ_t *pmb; 8095 8096 /* Set up MSI-X multi-message vectors */ 8097 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 8098 phba->msix_entries[i].entry = i; 8099 8100 /* Configure MSI-X capability structure */ 8101 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 8102 ARRAY_SIZE(phba->msix_entries)); 8103 if (rc) { 8104 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8105 "0420 PCI enable MSI-X failed (%d)\n", rc); 8106 goto msi_fail_out; 8107 } 8108 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 8109 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8110 "0477 MSI-X entry[%d]: vector=x%x " 8111 "message=%d\n", i, 8112 phba->msix_entries[i].vector, 8113 phba->msix_entries[i].entry); 8114 /* 8115 * Assign MSI-X vectors to interrupt handlers 8116 */ 8117 8118 /* vector-0 is associated to slow-path handler */ 8119 rc = request_irq(phba->msix_entries[0].vector, 8120 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 8121 LPFC_SP_DRIVER_HANDLER_NAME, phba); 8122 if (rc) { 8123 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8124 "0421 MSI-X slow-path request_irq failed " 8125 "(%d)\n", rc); 8126 goto msi_fail_out; 8127 } 8128 8129 /* vector-1 is associated to fast-path handler */ 8130 rc = request_irq(phba->msix_entries[1].vector, 8131 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 8132 LPFC_FP_DRIVER_HANDLER_NAME, phba); 8133 8134 if (rc) { 8135 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8136 "0429 MSI-X fast-path request_irq failed " 8137 "(%d)\n", rc); 8138 goto irq_fail_out; 8139 } 8140 8141 /* 8142 * Configure HBA MSI-X attention conditions to messages 8143 */ 8144 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 8145 8146 if (!pmb) { 8147 rc = -ENOMEM; 8148 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8149 "0474 Unable to allocate memory for issuing " 8150 "MBOX_CONFIG_MSI command\n"); 8151 goto mem_fail_out; 8152 } 8153 rc = lpfc_config_msi(phba, pmb); 8154 if (rc) 8155 goto mbx_fail_out; 8156 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 8157 if (rc != MBX_SUCCESS) { 8158 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 8159 "0351 Config MSI mailbox command failed, " 8160 "mbxCmd x%x, mbxStatus x%x\n", 8161 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 8162 goto mbx_fail_out; 8163 } 8164 8165 /* Free memory allocated for mailbox command */ 8166 mempool_free(pmb, phba->mbox_mem_pool); 8167 return rc; 8168 8169 mbx_fail_out: 8170 /* Free memory allocated for mailbox command */ 8171 mempool_free(pmb, phba->mbox_mem_pool); 8172 8173 mem_fail_out: 8174 /* free the irq already requested */ 8175 free_irq(phba->msix_entries[1].vector, phba); 8176 8177 irq_fail_out: 8178 /* free the irq already requested */ 8179 free_irq(phba->msix_entries[0].vector, phba); 8180 8181 msi_fail_out: 8182 /* Unconfigure MSI-X capability structure */ 8183 pci_disable_msix(phba->pcidev); 8184 return rc; 8185 } 8186 8187 /** 8188 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 8189 * @phba: pointer to lpfc hba data structure. 8190 * 8191 * This routine is invoked to release the MSI-X vectors and then disable the 8192 * MSI-X interrupt mode to device with SLI-3 interface spec. 8193 **/ 8194 static void 8195 lpfc_sli_disable_msix(struct lpfc_hba *phba) 8196 { 8197 int i; 8198 8199 /* Free up MSI-X multi-message vectors */ 8200 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 8201 free_irq(phba->msix_entries[i].vector, phba); 8202 /* Disable MSI-X */ 8203 pci_disable_msix(phba->pcidev); 8204 8205 return; 8206 } 8207 8208 /** 8209 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 8210 * @phba: pointer to lpfc hba data structure. 8211 * 8212 * This routine is invoked to enable the MSI interrupt mode to device with 8213 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 8214 * enable the MSI vector. The device driver is responsible for calling the 8215 * request_irq() to register MSI vector with a interrupt the handler, which 8216 * is done in this function. 8217 * 8218 * Return codes 8219 * 0 - successful 8220 * other values - error 8221 */ 8222 static int 8223 lpfc_sli_enable_msi(struct lpfc_hba *phba) 8224 { 8225 int rc; 8226 8227 rc = pci_enable_msi(phba->pcidev); 8228 if (!rc) 8229 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8230 "0462 PCI enable MSI mode success.\n"); 8231 else { 8232 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8233 "0471 PCI enable MSI mode failed (%d)\n", rc); 8234 return rc; 8235 } 8236 8237 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 8238 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8239 if (rc) { 8240 pci_disable_msi(phba->pcidev); 8241 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8242 "0478 MSI request_irq failed (%d)\n", rc); 8243 } 8244 return rc; 8245 } 8246 8247 /** 8248 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 8249 * @phba: pointer to lpfc hba data structure. 8250 * 8251 * This routine is invoked to disable the MSI interrupt mode to device with 8252 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 8253 * done request_irq() on before calling pci_disable_msi(). Failure to do so 8254 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 8255 * its vector. 8256 */ 8257 static void 8258 lpfc_sli_disable_msi(struct lpfc_hba *phba) 8259 { 8260 free_irq(phba->pcidev->irq, phba); 8261 pci_disable_msi(phba->pcidev); 8262 return; 8263 } 8264 8265 /** 8266 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 8267 * @phba: pointer to lpfc hba data structure. 8268 * 8269 * This routine is invoked to enable device interrupt and associate driver's 8270 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 8271 * spec. Depends on the interrupt mode configured to the driver, the driver 8272 * will try to fallback from the configured interrupt mode to an interrupt 8273 * mode which is supported by the platform, kernel, and device in the order 8274 * of: 8275 * MSI-X -> MSI -> IRQ. 8276 * 8277 * Return codes 8278 * 0 - successful 8279 * other values - error 8280 **/ 8281 static uint32_t 8282 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 8283 { 8284 uint32_t intr_mode = LPFC_INTR_ERROR; 8285 int retval; 8286 8287 if (cfg_mode == 2) { 8288 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 8289 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 8290 if (!retval) { 8291 /* Now, try to enable MSI-X interrupt mode */ 8292 retval = lpfc_sli_enable_msix(phba); 8293 if (!retval) { 8294 /* Indicate initialization to MSI-X mode */ 8295 phba->intr_type = MSIX; 8296 intr_mode = 2; 8297 } 8298 } 8299 } 8300 8301 /* Fallback to MSI if MSI-X initialization failed */ 8302 if (cfg_mode >= 1 && phba->intr_type == NONE) { 8303 retval = lpfc_sli_enable_msi(phba); 8304 if (!retval) { 8305 /* Indicate initialization to MSI mode */ 8306 phba->intr_type = MSI; 8307 intr_mode = 1; 8308 } 8309 } 8310 8311 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 8312 if (phba->intr_type == NONE) { 8313 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 8314 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8315 if (!retval) { 8316 /* Indicate initialization to INTx mode */ 8317 phba->intr_type = INTx; 8318 intr_mode = 0; 8319 } 8320 } 8321 return intr_mode; 8322 } 8323 8324 /** 8325 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 8326 * @phba: pointer to lpfc hba data structure. 8327 * 8328 * This routine is invoked to disable device interrupt and disassociate the 8329 * driver's interrupt handler(s) from interrupt vector(s) to device with 8330 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 8331 * release the interrupt vector(s) for the message signaled interrupt. 8332 **/ 8333 static void 8334 lpfc_sli_disable_intr(struct lpfc_hba *phba) 8335 { 8336 /* Disable the currently initialized interrupt mode */ 8337 if (phba->intr_type == MSIX) 8338 lpfc_sli_disable_msix(phba); 8339 else if (phba->intr_type == MSI) 8340 lpfc_sli_disable_msi(phba); 8341 else if (phba->intr_type == INTx) 8342 free_irq(phba->pcidev->irq, phba); 8343 8344 /* Reset interrupt management states */ 8345 phba->intr_type = NONE; 8346 phba->sli.slistat.sli_intr = 0; 8347 8348 return; 8349 } 8350 8351 /** 8352 * lpfc_find_next_cpu - Find next available CPU that matches the phys_id 8353 * @phba: pointer to lpfc hba data structure. 8354 * 8355 * Find next available CPU to use for IRQ to CPU affinity. 8356 */ 8357 static int 8358 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id) 8359 { 8360 struct lpfc_vector_map_info *cpup; 8361 int cpu; 8362 8363 cpup = phba->sli4_hba.cpu_map; 8364 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8365 /* CPU must be online */ 8366 if (cpu_online(cpu)) { 8367 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) && 8368 (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) && 8369 (cpup->phys_id == phys_id)) { 8370 return cpu; 8371 } 8372 } 8373 cpup++; 8374 } 8375 8376 /* 8377 * If we get here, we have used ALL CPUs for the specific 8378 * phys_id. Now we need to clear out lpfc_used_cpu and start 8379 * reusing CPUs. 8380 */ 8381 8382 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8383 if (lpfc_used_cpu[cpu] == phys_id) 8384 lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY; 8385 } 8386 8387 cpup = phba->sli4_hba.cpu_map; 8388 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8389 /* CPU must be online */ 8390 if (cpu_online(cpu)) { 8391 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) && 8392 (cpup->phys_id == phys_id)) { 8393 return cpu; 8394 } 8395 } 8396 cpup++; 8397 } 8398 return LPFC_VECTOR_MAP_EMPTY; 8399 } 8400 8401 /** 8402 * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors 8403 * @phba: pointer to lpfc hba data structure. 8404 * @vectors: number of HBA vectors 8405 * 8406 * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector 8407 * affinization across multple physical CPUs (numa nodes). 8408 * In addition, this routine will assign an IO channel for each CPU 8409 * to use when issuing I/Os. 8410 */ 8411 static int 8412 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors) 8413 { 8414 int i, idx, saved_chann, used_chann, cpu, phys_id; 8415 int max_phys_id, num_io_channel, first_cpu; 8416 struct lpfc_vector_map_info *cpup; 8417 #ifdef CONFIG_X86 8418 struct cpuinfo_x86 *cpuinfo; 8419 #endif 8420 struct cpumask *mask; 8421 uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1]; 8422 8423 /* If there is no mapping, just return */ 8424 if (!phba->cfg_fcp_cpu_map) 8425 return 1; 8426 8427 /* Init cpu_map array */ 8428 memset(phba->sli4_hba.cpu_map, 0xff, 8429 (sizeof(struct lpfc_vector_map_info) * 8430 phba->sli4_hba.num_present_cpu)); 8431 8432 max_phys_id = 0; 8433 phys_id = 0; 8434 num_io_channel = 0; 8435 first_cpu = LPFC_VECTOR_MAP_EMPTY; 8436 8437 /* Update CPU map with physical id and core id of each CPU */ 8438 cpup = phba->sli4_hba.cpu_map; 8439 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8440 #ifdef CONFIG_X86 8441 cpuinfo = &cpu_data(cpu); 8442 cpup->phys_id = cpuinfo->phys_proc_id; 8443 cpup->core_id = cpuinfo->cpu_core_id; 8444 #else 8445 /* No distinction between CPUs for other platforms */ 8446 cpup->phys_id = 0; 8447 cpup->core_id = 0; 8448 #endif 8449 8450 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8451 "3328 CPU physid %d coreid %d\n", 8452 cpup->phys_id, cpup->core_id); 8453 8454 if (cpup->phys_id > max_phys_id) 8455 max_phys_id = cpup->phys_id; 8456 cpup++; 8457 } 8458 8459 /* Now associate the HBA vectors with specific CPUs */ 8460 for (idx = 0; idx < vectors; idx++) { 8461 cpup = phba->sli4_hba.cpu_map; 8462 cpu = lpfc_find_next_cpu(phba, phys_id); 8463 if (cpu == LPFC_VECTOR_MAP_EMPTY) { 8464 8465 /* Try for all phys_id's */ 8466 for (i = 1; i < max_phys_id; i++) { 8467 phys_id++; 8468 if (phys_id > max_phys_id) 8469 phys_id = 0; 8470 cpu = lpfc_find_next_cpu(phba, phys_id); 8471 if (cpu == LPFC_VECTOR_MAP_EMPTY) 8472 continue; 8473 goto found; 8474 } 8475 8476 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8477 "3329 Cannot set affinity:" 8478 "Error mapping vector %d (%d)\n", 8479 idx, vectors); 8480 return 0; 8481 } 8482 found: 8483 cpup += cpu; 8484 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP) 8485 lpfc_used_cpu[cpu] = phys_id; 8486 8487 /* Associate vector with selected CPU */ 8488 cpup->irq = phba->sli4_hba.msix_entries[idx].vector; 8489 8490 /* Associate IO channel with selected CPU */ 8491 cpup->channel_id = idx; 8492 num_io_channel++; 8493 8494 if (first_cpu == LPFC_VECTOR_MAP_EMPTY) 8495 first_cpu = cpu; 8496 8497 /* Now affinitize to the selected CPU */ 8498 mask = &cpup->maskbits; 8499 cpumask_clear(mask); 8500 cpumask_set_cpu(cpu, mask); 8501 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx]. 8502 vector, mask); 8503 8504 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8505 "3330 Set Affinity: CPU %d channel %d " 8506 "irq %d (%x)\n", 8507 cpu, cpup->channel_id, 8508 phba->sli4_hba.msix_entries[idx].vector, i); 8509 8510 /* Spread vector mapping across multple physical CPU nodes */ 8511 phys_id++; 8512 if (phys_id > max_phys_id) 8513 phys_id = 0; 8514 } 8515 8516 /* 8517 * Finally fill in the IO channel for any remaining CPUs. 8518 * At this point, all IO channels have been assigned to a specific 8519 * MSIx vector, mapped to a specific CPU. 8520 * Base the remaining IO channel assigned, to IO channels already 8521 * assigned to other CPUs on the same phys_id. 8522 */ 8523 for (i = 0; i <= max_phys_id; i++) { 8524 /* 8525 * If there are no io channels already mapped to 8526 * this phys_id, just round robin thru the io_channels. 8527 * Setup chann[] for round robin. 8528 */ 8529 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 8530 chann[idx] = idx; 8531 8532 saved_chann = 0; 8533 used_chann = 0; 8534 8535 /* 8536 * First build a list of IO channels already assigned 8537 * to this phys_id before reassigning the same IO 8538 * channels to the remaining CPUs. 8539 */ 8540 cpup = phba->sli4_hba.cpu_map; 8541 cpu = first_cpu; 8542 cpup += cpu; 8543 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; 8544 idx++) { 8545 if (cpup->phys_id == i) { 8546 /* 8547 * Save any IO channels that are 8548 * already mapped to this phys_id. 8549 */ 8550 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) { 8551 chann[saved_chann] = 8552 cpup->channel_id; 8553 saved_chann++; 8554 goto out; 8555 } 8556 8557 /* See if we are using round-robin */ 8558 if (saved_chann == 0) 8559 saved_chann = 8560 phba->cfg_fcp_io_channel; 8561 8562 /* Associate next IO channel with CPU */ 8563 cpup->channel_id = chann[used_chann]; 8564 num_io_channel++; 8565 used_chann++; 8566 if (used_chann == saved_chann) 8567 used_chann = 0; 8568 8569 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8570 "3331 Set IO_CHANN " 8571 "CPU %d channel %d\n", 8572 idx, cpup->channel_id); 8573 } 8574 out: 8575 cpu++; 8576 if (cpu >= phba->sli4_hba.num_present_cpu) { 8577 cpup = phba->sli4_hba.cpu_map; 8578 cpu = 0; 8579 } else { 8580 cpup++; 8581 } 8582 } 8583 } 8584 8585 if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) { 8586 cpup = phba->sli4_hba.cpu_map; 8587 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) { 8588 if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) { 8589 cpup->channel_id = 0; 8590 num_io_channel++; 8591 8592 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8593 "3332 Assign IO_CHANN " 8594 "CPU %d channel %d\n", 8595 idx, cpup->channel_id); 8596 } 8597 cpup++; 8598 } 8599 } 8600 8601 /* Sanity check */ 8602 if (num_io_channel != phba->sli4_hba.num_present_cpu) 8603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8604 "3333 Set affinity mismatch:" 8605 "%d chann != %d cpus: %d vactors\n", 8606 num_io_channel, phba->sli4_hba.num_present_cpu, 8607 vectors); 8608 8609 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU; 8610 return 1; 8611 } 8612 8613 8614 /** 8615 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 8616 * @phba: pointer to lpfc hba data structure. 8617 * 8618 * This routine is invoked to enable the MSI-X interrupt vectors to device 8619 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 8620 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 8621 * enables either all or nothing, depending on the current availability of 8622 * PCI vector resources. The device driver is responsible for calling the 8623 * individual request_irq() to register each MSI-X vector with a interrupt 8624 * handler, which is done in this function. Note that later when device is 8625 * unloading, the driver should always call free_irq() on all MSI-X vectors 8626 * it has done request_irq() on before calling pci_disable_msix(). Failure 8627 * to do so results in a BUG_ON() and a device will be left with MSI-X 8628 * enabled and leaks its vectors. 8629 * 8630 * Return codes 8631 * 0 - successful 8632 * other values - error 8633 **/ 8634 static int 8635 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 8636 { 8637 int vectors, rc, index; 8638 8639 /* Set up MSI-X multi-message vectors */ 8640 for (index = 0; index < phba->cfg_fcp_io_channel; index++) 8641 phba->sli4_hba.msix_entries[index].entry = index; 8642 8643 /* Configure MSI-X capability structure */ 8644 vectors = phba->cfg_fcp_io_channel; 8645 enable_msix_vectors: 8646 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 8647 vectors); 8648 if (rc > 1) { 8649 vectors = rc; 8650 goto enable_msix_vectors; 8651 } else if (rc) { 8652 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8653 "0484 PCI enable MSI-X failed (%d)\n", rc); 8654 goto msi_fail_out; 8655 } 8656 8657 /* Log MSI-X vector assignment */ 8658 for (index = 0; index < vectors; index++) 8659 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8660 "0489 MSI-X entry[%d]: vector=x%x " 8661 "message=%d\n", index, 8662 phba->sli4_hba.msix_entries[index].vector, 8663 phba->sli4_hba.msix_entries[index].entry); 8664 8665 /* Assign MSI-X vectors to interrupt handlers */ 8666 for (index = 0; index < vectors; index++) { 8667 memset(&phba->sli4_hba.handler_name[index], 0, 16); 8668 sprintf((char *)&phba->sli4_hba.handler_name[index], 8669 LPFC_DRIVER_HANDLER_NAME"%d", index); 8670 8671 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8672 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8673 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1); 8674 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 8675 &lpfc_sli4_hba_intr_handler, IRQF_SHARED, 8676 (char *)&phba->sli4_hba.handler_name[index], 8677 &phba->sli4_hba.fcp_eq_hdl[index]); 8678 if (rc) { 8679 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8680 "0486 MSI-X fast-path (%d) " 8681 "request_irq failed (%d)\n", index, rc); 8682 goto cfg_fail_out; 8683 } 8684 } 8685 8686 if (vectors != phba->cfg_fcp_io_channel) { 8687 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8688 "3238 Reducing IO channels to match number of " 8689 "MSI-X vectors, requested %d got %d\n", 8690 phba->cfg_fcp_io_channel, vectors); 8691 phba->cfg_fcp_io_channel = vectors; 8692 } 8693 8694 lpfc_sli4_set_affinity(phba, vectors); 8695 return rc; 8696 8697 cfg_fail_out: 8698 /* free the irq already requested */ 8699 for (--index; index >= 0; index--) 8700 free_irq(phba->sli4_hba.msix_entries[index].vector, 8701 &phba->sli4_hba.fcp_eq_hdl[index]); 8702 8703 msi_fail_out: 8704 /* Unconfigure MSI-X capability structure */ 8705 pci_disable_msix(phba->pcidev); 8706 return rc; 8707 } 8708 8709 /** 8710 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 8711 * @phba: pointer to lpfc hba data structure. 8712 * 8713 * This routine is invoked to release the MSI-X vectors and then disable the 8714 * MSI-X interrupt mode to device with SLI-4 interface spec. 8715 **/ 8716 static void 8717 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 8718 { 8719 int index; 8720 8721 /* Free up MSI-X multi-message vectors */ 8722 for (index = 0; index < phba->cfg_fcp_io_channel; index++) 8723 free_irq(phba->sli4_hba.msix_entries[index].vector, 8724 &phba->sli4_hba.fcp_eq_hdl[index]); 8725 8726 /* Disable MSI-X */ 8727 pci_disable_msix(phba->pcidev); 8728 8729 return; 8730 } 8731 8732 /** 8733 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 8734 * @phba: pointer to lpfc hba data structure. 8735 * 8736 * This routine is invoked to enable the MSI interrupt mode to device with 8737 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 8738 * to enable the MSI vector. The device driver is responsible for calling 8739 * the request_irq() to register MSI vector with a interrupt the handler, 8740 * which is done in this function. 8741 * 8742 * Return codes 8743 * 0 - successful 8744 * other values - error 8745 **/ 8746 static int 8747 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 8748 { 8749 int rc, index; 8750 8751 rc = pci_enable_msi(phba->pcidev); 8752 if (!rc) 8753 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8754 "0487 PCI enable MSI mode success.\n"); 8755 else { 8756 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8757 "0488 PCI enable MSI mode failed (%d)\n", rc); 8758 return rc; 8759 } 8760 8761 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8762 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8763 if (rc) { 8764 pci_disable_msi(phba->pcidev); 8765 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8766 "0490 MSI request_irq failed (%d)\n", rc); 8767 return rc; 8768 } 8769 8770 for (index = 0; index < phba->cfg_fcp_io_channel; index++) { 8771 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8772 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8773 } 8774 8775 return 0; 8776 } 8777 8778 /** 8779 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 8780 * @phba: pointer to lpfc hba data structure. 8781 * 8782 * This routine is invoked to disable the MSI interrupt mode to device with 8783 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 8784 * done request_irq() on before calling pci_disable_msi(). Failure to do so 8785 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 8786 * its vector. 8787 **/ 8788 static void 8789 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 8790 { 8791 free_irq(phba->pcidev->irq, phba); 8792 pci_disable_msi(phba->pcidev); 8793 return; 8794 } 8795 8796 /** 8797 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 8798 * @phba: pointer to lpfc hba data structure. 8799 * 8800 * This routine is invoked to enable device interrupt and associate driver's 8801 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 8802 * interface spec. Depends on the interrupt mode configured to the driver, 8803 * the driver will try to fallback from the configured interrupt mode to an 8804 * interrupt mode which is supported by the platform, kernel, and device in 8805 * the order of: 8806 * MSI-X -> MSI -> IRQ. 8807 * 8808 * Return codes 8809 * 0 - successful 8810 * other values - error 8811 **/ 8812 static uint32_t 8813 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 8814 { 8815 uint32_t intr_mode = LPFC_INTR_ERROR; 8816 int retval, index; 8817 8818 if (cfg_mode == 2) { 8819 /* Preparation before conf_msi mbox cmd */ 8820 retval = 0; 8821 if (!retval) { 8822 /* Now, try to enable MSI-X interrupt mode */ 8823 retval = lpfc_sli4_enable_msix(phba); 8824 if (!retval) { 8825 /* Indicate initialization to MSI-X mode */ 8826 phba->intr_type = MSIX; 8827 intr_mode = 2; 8828 } 8829 } 8830 } 8831 8832 /* Fallback to MSI if MSI-X initialization failed */ 8833 if (cfg_mode >= 1 && phba->intr_type == NONE) { 8834 retval = lpfc_sli4_enable_msi(phba); 8835 if (!retval) { 8836 /* Indicate initialization to MSI mode */ 8837 phba->intr_type = MSI; 8838 intr_mode = 1; 8839 } 8840 } 8841 8842 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 8843 if (phba->intr_type == NONE) { 8844 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8845 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8846 if (!retval) { 8847 /* Indicate initialization to INTx mode */ 8848 phba->intr_type = INTx; 8849 intr_mode = 0; 8850 for (index = 0; index < phba->cfg_fcp_io_channel; 8851 index++) { 8852 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8853 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8854 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index]. 8855 fcp_eq_in_use, 1); 8856 } 8857 } 8858 } 8859 return intr_mode; 8860 } 8861 8862 /** 8863 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 8864 * @phba: pointer to lpfc hba data structure. 8865 * 8866 * This routine is invoked to disable device interrupt and disassociate 8867 * the driver's interrupt handler(s) from interrupt vector(s) to device 8868 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 8869 * will release the interrupt vector(s) for the message signaled interrupt. 8870 **/ 8871 static void 8872 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 8873 { 8874 /* Disable the currently initialized interrupt mode */ 8875 if (phba->intr_type == MSIX) 8876 lpfc_sli4_disable_msix(phba); 8877 else if (phba->intr_type == MSI) 8878 lpfc_sli4_disable_msi(phba); 8879 else if (phba->intr_type == INTx) 8880 free_irq(phba->pcidev->irq, phba); 8881 8882 /* Reset interrupt management states */ 8883 phba->intr_type = NONE; 8884 phba->sli.slistat.sli_intr = 0; 8885 8886 return; 8887 } 8888 8889 /** 8890 * lpfc_unset_hba - Unset SLI3 hba device initialization 8891 * @phba: pointer to lpfc hba data structure. 8892 * 8893 * This routine is invoked to unset the HBA device initialization steps to 8894 * a device with SLI-3 interface spec. 8895 **/ 8896 static void 8897 lpfc_unset_hba(struct lpfc_hba *phba) 8898 { 8899 struct lpfc_vport *vport = phba->pport; 8900 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8901 8902 spin_lock_irq(shost->host_lock); 8903 vport->load_flag |= FC_UNLOADING; 8904 spin_unlock_irq(shost->host_lock); 8905 8906 kfree(phba->vpi_bmask); 8907 kfree(phba->vpi_ids); 8908 8909 lpfc_stop_hba_timers(phba); 8910 8911 phba->pport->work_port_events = 0; 8912 8913 lpfc_sli_hba_down(phba); 8914 8915 lpfc_sli_brdrestart(phba); 8916 8917 lpfc_sli_disable_intr(phba); 8918 8919 return; 8920 } 8921 8922 /** 8923 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 8924 * @phba: Pointer to HBA context object. 8925 * 8926 * This function is called in the SLI4 code path to wait for completion 8927 * of device's XRIs exchange busy. It will check the XRI exchange busy 8928 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 8929 * that, it will check the XRI exchange busy on outstanding FCP and ELS 8930 * I/Os every 30 seconds, log error message, and wait forever. Only when 8931 * all XRI exchange busy complete, the driver unload shall proceed with 8932 * invoking the function reset ioctl mailbox command to the CNA and the 8933 * the rest of the driver unload resource release. 8934 **/ 8935 static void 8936 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 8937 { 8938 int wait_time = 0; 8939 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8940 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8941 8942 while (!fcp_xri_cmpl || !els_xri_cmpl) { 8943 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 8944 if (!fcp_xri_cmpl) 8945 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8946 "2877 FCP XRI exchange busy " 8947 "wait time: %d seconds.\n", 8948 wait_time/1000); 8949 if (!els_xri_cmpl) 8950 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8951 "2878 ELS XRI exchange busy " 8952 "wait time: %d seconds.\n", 8953 wait_time/1000); 8954 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 8955 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 8956 } else { 8957 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 8958 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 8959 } 8960 fcp_xri_cmpl = 8961 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8962 els_xri_cmpl = 8963 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8964 } 8965 } 8966 8967 /** 8968 * lpfc_sli4_hba_unset - Unset the fcoe hba 8969 * @phba: Pointer to HBA context object. 8970 * 8971 * This function is called in the SLI4 code path to reset the HBA's FCoE 8972 * function. The caller is not required to hold any lock. This routine 8973 * issues PCI function reset mailbox command to reset the FCoE function. 8974 * At the end of the function, it calls lpfc_hba_down_post function to 8975 * free any pending commands. 8976 **/ 8977 static void 8978 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 8979 { 8980 int wait_cnt = 0; 8981 LPFC_MBOXQ_t *mboxq; 8982 struct pci_dev *pdev = phba->pcidev; 8983 8984 lpfc_stop_hba_timers(phba); 8985 phba->sli4_hba.intr_enable = 0; 8986 8987 /* 8988 * Gracefully wait out the potential current outstanding asynchronous 8989 * mailbox command. 8990 */ 8991 8992 /* First, block any pending async mailbox command from posted */ 8993 spin_lock_irq(&phba->hbalock); 8994 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 8995 spin_unlock_irq(&phba->hbalock); 8996 /* Now, trying to wait it out if we can */ 8997 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8998 msleep(10); 8999 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 9000 break; 9001 } 9002 /* Forcefully release the outstanding mailbox command if timed out */ 9003 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 9004 spin_lock_irq(&phba->hbalock); 9005 mboxq = phba->sli.mbox_active; 9006 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 9007 __lpfc_mbox_cmpl_put(phba, mboxq); 9008 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 9009 phba->sli.mbox_active = NULL; 9010 spin_unlock_irq(&phba->hbalock); 9011 } 9012 9013 /* Abort all iocbs associated with the hba */ 9014 lpfc_sli_hba_iocb_abort(phba); 9015 9016 /* Wait for completion of device XRI exchange busy */ 9017 lpfc_sli4_xri_exchange_busy_wait(phba); 9018 9019 /* Disable PCI subsystem interrupt */ 9020 lpfc_sli4_disable_intr(phba); 9021 9022 /* Disable SR-IOV if enabled */ 9023 if (phba->cfg_sriov_nr_virtfn) 9024 pci_disable_sriov(pdev); 9025 9026 /* Stop kthread signal shall trigger work_done one more time */ 9027 kthread_stop(phba->worker_thread); 9028 9029 /* Reset SLI4 HBA FCoE function */ 9030 lpfc_pci_function_reset(phba); 9031 lpfc_sli4_queue_destroy(phba); 9032 9033 /* Stop the SLI4 device port */ 9034 phba->pport->work_port_events = 0; 9035 } 9036 9037 /** 9038 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 9039 * @phba: Pointer to HBA context object. 9040 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 9041 * 9042 * This function is called in the SLI4 code path to read the port's 9043 * sli4 capabilities. 9044 * 9045 * This function may be be called from any context that can block-wait 9046 * for the completion. The expectation is that this routine is called 9047 * typically from probe_one or from the online routine. 9048 **/ 9049 int 9050 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 9051 { 9052 int rc; 9053 struct lpfc_mqe *mqe; 9054 struct lpfc_pc_sli4_params *sli4_params; 9055 uint32_t mbox_tmo; 9056 9057 rc = 0; 9058 mqe = &mboxq->u.mqe; 9059 9060 /* Read the port's SLI4 Parameters port capabilities */ 9061 lpfc_pc_sli4_params(mboxq); 9062 if (!phba->sli4_hba.intr_enable) 9063 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9064 else { 9065 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 9066 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 9067 } 9068 9069 if (unlikely(rc)) 9070 return 1; 9071 9072 sli4_params = &phba->sli4_hba.pc_sli4_params; 9073 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 9074 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 9075 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 9076 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 9077 &mqe->un.sli4_params); 9078 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 9079 &mqe->un.sli4_params); 9080 sli4_params->proto_types = mqe->un.sli4_params.word3; 9081 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 9082 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 9083 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 9084 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 9085 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 9086 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 9087 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 9088 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 9089 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 9090 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 9091 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 9092 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 9093 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 9094 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 9095 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 9096 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 9097 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 9098 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 9099 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 9100 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 9101 9102 /* Make sure that sge_supp_len can be handled by the driver */ 9103 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 9104 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 9105 9106 return rc; 9107 } 9108 9109 /** 9110 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 9111 * @phba: Pointer to HBA context object. 9112 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 9113 * 9114 * This function is called in the SLI4 code path to read the port's 9115 * sli4 capabilities. 9116 * 9117 * This function may be be called from any context that can block-wait 9118 * for the completion. The expectation is that this routine is called 9119 * typically from probe_one or from the online routine. 9120 **/ 9121 int 9122 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 9123 { 9124 int rc; 9125 struct lpfc_mqe *mqe = &mboxq->u.mqe; 9126 struct lpfc_pc_sli4_params *sli4_params; 9127 uint32_t mbox_tmo; 9128 int length; 9129 struct lpfc_sli4_parameters *mbx_sli4_parameters; 9130 9131 /* 9132 * By default, the driver assumes the SLI4 port requires RPI 9133 * header postings. The SLI4_PARAM response will correct this 9134 * assumption. 9135 */ 9136 phba->sli4_hba.rpi_hdrs_in_use = 1; 9137 9138 /* Read the port's SLI4 Config Parameters */ 9139 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 9140 sizeof(struct lpfc_sli4_cfg_mhdr)); 9141 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 9142 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 9143 length, LPFC_SLI4_MBX_EMBED); 9144 if (!phba->sli4_hba.intr_enable) 9145 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9146 else { 9147 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 9148 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 9149 } 9150 if (unlikely(rc)) 9151 return rc; 9152 sli4_params = &phba->sli4_hba.pc_sli4_params; 9153 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 9154 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 9155 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 9156 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 9157 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 9158 mbx_sli4_parameters); 9159 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 9160 mbx_sli4_parameters); 9161 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 9162 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 9163 else 9164 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 9165 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 9166 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 9167 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 9168 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 9169 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 9170 sli4_params->rqv = bf_get(cfg_rqv, 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 pci_set_drvdata(pdev, NULL); 9431 scsi_host_put(shost); 9432 9433 /* 9434 * Call scsi_free before mem_free since scsi bufs are released to their 9435 * corresponding pools here. 9436 */ 9437 lpfc_scsi_free(phba); 9438 lpfc_mem_free_all(phba); 9439 9440 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 9441 phba->hbqslimp.virt, phba->hbqslimp.phys); 9442 9443 /* Free resources associated with SLI2 interface */ 9444 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 9445 phba->slim2p.virt, phba->slim2p.phys); 9446 9447 /* unmap adapter SLIM and Control Registers */ 9448 iounmap(phba->ctrl_regs_memmap_p); 9449 iounmap(phba->slim_memmap_p); 9450 9451 lpfc_hba_free(phba); 9452 9453 pci_release_selected_regions(pdev, bars); 9454 pci_disable_device(pdev); 9455 } 9456 9457 /** 9458 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 9459 * @pdev: pointer to PCI device 9460 * @msg: power management message 9461 * 9462 * This routine is to be called from the kernel's PCI subsystem to support 9463 * system Power Management (PM) to device with SLI-3 interface spec. When 9464 * PM invokes this method, it quiesces the device by stopping the driver's 9465 * worker thread for the device, turning off device's interrupt and DMA, 9466 * and bring the device offline. Note that as the driver implements the 9467 * minimum PM requirements to a power-aware driver's PM support for the 9468 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 9469 * to the suspend() method call will be treated as SUSPEND and the driver will 9470 * fully reinitialize its device during resume() method call, the driver will 9471 * set device to PCI_D3hot state in PCI config space instead of setting it 9472 * according to the @msg provided by the PM. 9473 * 9474 * Return code 9475 * 0 - driver suspended the device 9476 * Error otherwise 9477 **/ 9478 static int 9479 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 9480 { 9481 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9482 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9483 9484 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9485 "0473 PCI device Power Management suspend.\n"); 9486 9487 /* Bring down the device */ 9488 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 9489 lpfc_offline(phba); 9490 kthread_stop(phba->worker_thread); 9491 9492 /* Disable interrupt from device */ 9493 lpfc_sli_disable_intr(phba); 9494 9495 /* Save device state to PCI config space */ 9496 pci_save_state(pdev); 9497 pci_set_power_state(pdev, PCI_D3hot); 9498 9499 return 0; 9500 } 9501 9502 /** 9503 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 9504 * @pdev: pointer to PCI device 9505 * 9506 * This routine is to be called from the kernel's PCI subsystem to support 9507 * system Power Management (PM) to device with SLI-3 interface spec. When PM 9508 * invokes this method, it restores the device's PCI config space state and 9509 * fully reinitializes the device and brings it online. Note that as the 9510 * driver implements the minimum PM requirements to a power-aware driver's 9511 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 9512 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 9513 * driver will fully reinitialize its device during resume() method call, 9514 * the device will be set to PCI_D0 directly in PCI config space before 9515 * restoring the state. 9516 * 9517 * Return code 9518 * 0 - driver suspended the device 9519 * Error otherwise 9520 **/ 9521 static int 9522 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 9523 { 9524 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9525 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9526 uint32_t intr_mode; 9527 int error; 9528 9529 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9530 "0452 PCI device Power Management resume.\n"); 9531 9532 /* Restore device state from PCI config space */ 9533 pci_set_power_state(pdev, PCI_D0); 9534 pci_restore_state(pdev); 9535 9536 /* 9537 * As the new kernel behavior of pci_restore_state() API call clears 9538 * device saved_state flag, need to save the restored state again. 9539 */ 9540 pci_save_state(pdev); 9541 9542 if (pdev->is_busmaster) 9543 pci_set_master(pdev); 9544 9545 /* Startup the kernel thread for this host adapter. */ 9546 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9547 "lpfc_worker_%d", phba->brd_no); 9548 if (IS_ERR(phba->worker_thread)) { 9549 error = PTR_ERR(phba->worker_thread); 9550 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9551 "0434 PM resume failed to start worker " 9552 "thread: error=x%x.\n", error); 9553 return error; 9554 } 9555 9556 /* Configure and enable interrupt */ 9557 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 9558 if (intr_mode == LPFC_INTR_ERROR) { 9559 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9560 "0430 PM resume Failed to enable interrupt\n"); 9561 return -EIO; 9562 } else 9563 phba->intr_mode = intr_mode; 9564 9565 /* Restart HBA and bring it online */ 9566 lpfc_sli_brdrestart(phba); 9567 lpfc_online(phba); 9568 9569 /* Log the current active interrupt mode */ 9570 lpfc_log_intr_mode(phba, phba->intr_mode); 9571 9572 return 0; 9573 } 9574 9575 /** 9576 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 9577 * @phba: pointer to lpfc hba data structure. 9578 * 9579 * This routine is called to prepare the SLI3 device for PCI slot recover. It 9580 * aborts all the outstanding SCSI I/Os to the pci device. 9581 **/ 9582 static void 9583 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 9584 { 9585 struct lpfc_sli *psli = &phba->sli; 9586 struct lpfc_sli_ring *pring; 9587 9588 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9589 "2723 PCI channel I/O abort preparing for recovery\n"); 9590 9591 /* 9592 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9593 * and let the SCSI mid-layer to retry them to recover. 9594 */ 9595 pring = &psli->ring[psli->fcp_ring]; 9596 lpfc_sli_abort_iocb_ring(phba, pring); 9597 } 9598 9599 /** 9600 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 9601 * @phba: pointer to lpfc hba data structure. 9602 * 9603 * This routine is called to prepare the SLI3 device for PCI slot reset. It 9604 * disables the device interrupt and pci device, and aborts the internal FCP 9605 * pending I/Os. 9606 **/ 9607 static void 9608 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 9609 { 9610 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9611 "2710 PCI channel disable preparing for reset\n"); 9612 9613 /* Block any management I/Os to the device */ 9614 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 9615 9616 /* Block all SCSI devices' I/Os on the host */ 9617 lpfc_scsi_dev_block(phba); 9618 9619 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9620 lpfc_sli_flush_fcp_rings(phba); 9621 9622 /* stop all timers */ 9623 lpfc_stop_hba_timers(phba); 9624 9625 /* Disable interrupt and pci device */ 9626 lpfc_sli_disable_intr(phba); 9627 pci_disable_device(phba->pcidev); 9628 } 9629 9630 /** 9631 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 9632 * @phba: pointer to lpfc hba data structure. 9633 * 9634 * This routine is called to prepare the SLI3 device for PCI slot permanently 9635 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9636 * pending I/Os. 9637 **/ 9638 static void 9639 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9640 { 9641 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9642 "2711 PCI channel permanent disable for failure\n"); 9643 /* Block all SCSI devices' I/Os on the host */ 9644 lpfc_scsi_dev_block(phba); 9645 9646 /* stop all timers */ 9647 lpfc_stop_hba_timers(phba); 9648 9649 /* Clean up all driver's outstanding SCSI I/Os */ 9650 lpfc_sli_flush_fcp_rings(phba); 9651 } 9652 9653 /** 9654 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 9655 * @pdev: pointer to PCI device. 9656 * @state: the current PCI connection state. 9657 * 9658 * This routine is called from the PCI subsystem for I/O error handling to 9659 * device with SLI-3 interface spec. This function is called by the PCI 9660 * subsystem after a PCI bus error affecting this device has been detected. 9661 * When this function is invoked, it will need to stop all the I/Os and 9662 * interrupt(s) to the device. Once that is done, it will return 9663 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 9664 * as desired. 9665 * 9666 * Return codes 9667 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 9668 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9669 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9670 **/ 9671 static pci_ers_result_t 9672 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 9673 { 9674 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9675 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9676 9677 switch (state) { 9678 case pci_channel_io_normal: 9679 /* Non-fatal error, prepare for recovery */ 9680 lpfc_sli_prep_dev_for_recover(phba); 9681 return PCI_ERS_RESULT_CAN_RECOVER; 9682 case pci_channel_io_frozen: 9683 /* Fatal error, prepare for slot reset */ 9684 lpfc_sli_prep_dev_for_reset(phba); 9685 return PCI_ERS_RESULT_NEED_RESET; 9686 case pci_channel_io_perm_failure: 9687 /* Permanent failure, prepare for device down */ 9688 lpfc_sli_prep_dev_for_perm_failure(phba); 9689 return PCI_ERS_RESULT_DISCONNECT; 9690 default: 9691 /* Unknown state, prepare and request slot reset */ 9692 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9693 "0472 Unknown PCI error state: x%x\n", state); 9694 lpfc_sli_prep_dev_for_reset(phba); 9695 return PCI_ERS_RESULT_NEED_RESET; 9696 } 9697 } 9698 9699 /** 9700 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 9701 * @pdev: pointer to PCI device. 9702 * 9703 * This routine is called from the PCI subsystem for error handling to 9704 * device with SLI-3 interface spec. This is called after PCI bus has been 9705 * reset to restart the PCI card from scratch, as if from a cold-boot. 9706 * During the PCI subsystem error recovery, after driver returns 9707 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 9708 * recovery and then call this routine before calling the .resume method 9709 * to recover the device. This function will initialize the HBA device, 9710 * enable the interrupt, but it will just put the HBA to offline state 9711 * without passing any I/O traffic. 9712 * 9713 * Return codes 9714 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9715 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9716 */ 9717 static pci_ers_result_t 9718 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 9719 { 9720 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9721 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9722 struct lpfc_sli *psli = &phba->sli; 9723 uint32_t intr_mode; 9724 9725 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9726 if (pci_enable_device_mem(pdev)) { 9727 printk(KERN_ERR "lpfc: Cannot re-enable " 9728 "PCI device after reset.\n"); 9729 return PCI_ERS_RESULT_DISCONNECT; 9730 } 9731 9732 pci_restore_state(pdev); 9733 9734 /* 9735 * As the new kernel behavior of pci_restore_state() API call clears 9736 * device saved_state flag, need to save the restored state again. 9737 */ 9738 pci_save_state(pdev); 9739 9740 if (pdev->is_busmaster) 9741 pci_set_master(pdev); 9742 9743 spin_lock_irq(&phba->hbalock); 9744 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 9745 spin_unlock_irq(&phba->hbalock); 9746 9747 /* Configure and enable interrupt */ 9748 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 9749 if (intr_mode == LPFC_INTR_ERROR) { 9750 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9751 "0427 Cannot re-enable interrupt after " 9752 "slot reset.\n"); 9753 return PCI_ERS_RESULT_DISCONNECT; 9754 } else 9755 phba->intr_mode = intr_mode; 9756 9757 /* Take device offline, it will perform cleanup */ 9758 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 9759 lpfc_offline(phba); 9760 lpfc_sli_brdrestart(phba); 9761 9762 /* Log the current active interrupt mode */ 9763 lpfc_log_intr_mode(phba, phba->intr_mode); 9764 9765 return PCI_ERS_RESULT_RECOVERED; 9766 } 9767 9768 /** 9769 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 9770 * @pdev: pointer to PCI device 9771 * 9772 * This routine is called from the PCI subsystem for error handling to device 9773 * with SLI-3 interface spec. It is called when kernel error recovery tells 9774 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 9775 * error recovery. After this call, traffic can start to flow from this device 9776 * again. 9777 */ 9778 static void 9779 lpfc_io_resume_s3(struct pci_dev *pdev) 9780 { 9781 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9782 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9783 9784 /* Bring device online, it will be no-op for non-fatal error resume */ 9785 lpfc_online(phba); 9786 9787 /* Clean up Advanced Error Reporting (AER) if needed */ 9788 if (phba->hba_flag & HBA_AER_ENABLED) 9789 pci_cleanup_aer_uncorrect_error_status(pdev); 9790 } 9791 9792 /** 9793 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 9794 * @phba: pointer to lpfc hba data structure. 9795 * 9796 * returns the number of ELS/CT IOCBs to reserve 9797 **/ 9798 int 9799 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 9800 { 9801 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 9802 9803 if (phba->sli_rev == LPFC_SLI_REV4) { 9804 if (max_xri <= 100) 9805 return 10; 9806 else if (max_xri <= 256) 9807 return 25; 9808 else if (max_xri <= 512) 9809 return 50; 9810 else if (max_xri <= 1024) 9811 return 100; 9812 else if (max_xri <= 1536) 9813 return 150; 9814 else if (max_xri <= 2048) 9815 return 200; 9816 else 9817 return 250; 9818 } else 9819 return 0; 9820 } 9821 9822 /** 9823 * lpfc_write_firmware - attempt to write a firmware image to the port 9824 * @fw: pointer to firmware image returned from request_firmware. 9825 * @phba: pointer to lpfc hba data structure. 9826 * 9827 **/ 9828 static void 9829 lpfc_write_firmware(const struct firmware *fw, void *context) 9830 { 9831 struct lpfc_hba *phba = (struct lpfc_hba *)context; 9832 char fwrev[FW_REV_STR_SIZE]; 9833 struct lpfc_grp_hdr *image; 9834 struct list_head dma_buffer_list; 9835 int i, rc = 0; 9836 struct lpfc_dmabuf *dmabuf, *next; 9837 uint32_t offset = 0, temp_offset = 0; 9838 9839 /* It can be null in no-wait mode, sanity check */ 9840 if (!fw) { 9841 rc = -ENXIO; 9842 goto out; 9843 } 9844 image = (struct lpfc_grp_hdr *)fw->data; 9845 9846 INIT_LIST_HEAD(&dma_buffer_list); 9847 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) || 9848 (bf_get_be32(lpfc_grp_hdr_file_type, image) != 9849 LPFC_FILE_TYPE_GROUP) || 9850 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) || 9851 (be32_to_cpu(image->size) != fw->size)) { 9852 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9853 "3022 Invalid FW image found. " 9854 "Magic:%x Type:%x ID:%x\n", 9855 be32_to_cpu(image->magic_number), 9856 bf_get_be32(lpfc_grp_hdr_file_type, image), 9857 bf_get_be32(lpfc_grp_hdr_id, image)); 9858 rc = -EINVAL; 9859 goto release_out; 9860 } 9861 lpfc_decode_firmware_rev(phba, fwrev, 1); 9862 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 9863 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9864 "3023 Updating Firmware, Current Version:%s " 9865 "New Version:%s\n", 9866 fwrev, image->revision); 9867 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 9868 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 9869 GFP_KERNEL); 9870 if (!dmabuf) { 9871 rc = -ENOMEM; 9872 goto release_out; 9873 } 9874 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 9875 SLI4_PAGE_SIZE, 9876 &dmabuf->phys, 9877 GFP_KERNEL); 9878 if (!dmabuf->virt) { 9879 kfree(dmabuf); 9880 rc = -ENOMEM; 9881 goto release_out; 9882 } 9883 list_add_tail(&dmabuf->list, &dma_buffer_list); 9884 } 9885 while (offset < fw->size) { 9886 temp_offset = offset; 9887 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 9888 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 9889 memcpy(dmabuf->virt, 9890 fw->data + temp_offset, 9891 fw->size - temp_offset); 9892 temp_offset = fw->size; 9893 break; 9894 } 9895 memcpy(dmabuf->virt, fw->data + temp_offset, 9896 SLI4_PAGE_SIZE); 9897 temp_offset += SLI4_PAGE_SIZE; 9898 } 9899 rc = lpfc_wr_object(phba, &dma_buffer_list, 9900 (fw->size - offset), &offset); 9901 if (rc) 9902 goto release_out; 9903 } 9904 rc = offset; 9905 } 9906 9907 release_out: 9908 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 9909 list_del(&dmabuf->list); 9910 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 9911 dmabuf->virt, dmabuf->phys); 9912 kfree(dmabuf); 9913 } 9914 release_firmware(fw); 9915 out: 9916 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9917 "3024 Firmware update done: %d.\n", rc); 9918 return; 9919 } 9920 9921 /** 9922 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 9923 * @phba: pointer to lpfc hba data structure. 9924 * 9925 * This routine is called to perform Linux generic firmware upgrade on device 9926 * that supports such feature. 9927 **/ 9928 int 9929 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 9930 { 9931 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 9932 int ret; 9933 const struct firmware *fw; 9934 9935 /* Only supported on SLI4 interface type 2 for now */ 9936 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 9937 LPFC_SLI_INTF_IF_TYPE_2) 9938 return -EPERM; 9939 9940 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 9941 9942 if (fw_upgrade == INT_FW_UPGRADE) { 9943 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 9944 file_name, &phba->pcidev->dev, 9945 GFP_KERNEL, (void *)phba, 9946 lpfc_write_firmware); 9947 } else if (fw_upgrade == RUN_FW_UPGRADE) { 9948 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 9949 if (!ret) 9950 lpfc_write_firmware(fw, (void *)phba); 9951 } else { 9952 ret = -EINVAL; 9953 } 9954 9955 return ret; 9956 } 9957 9958 /** 9959 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 9960 * @pdev: pointer to PCI device 9961 * @pid: pointer to PCI device identifier 9962 * 9963 * This routine is called from the kernel's PCI subsystem to device with 9964 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9965 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 9966 * information of the device and driver to see if the driver state that it 9967 * can support this kind of device. If the match is successful, the driver 9968 * core invokes this routine. If this routine determines it can claim the HBA, 9969 * it does all the initialization that it needs to do to handle the HBA 9970 * properly. 9971 * 9972 * Return code 9973 * 0 - driver can claim the device 9974 * negative value - driver can not claim the device 9975 **/ 9976 static int 9977 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 9978 { 9979 struct lpfc_hba *phba; 9980 struct lpfc_vport *vport = NULL; 9981 struct Scsi_Host *shost = NULL; 9982 int error, ret; 9983 uint32_t cfg_mode, intr_mode; 9984 int adjusted_fcp_io_channel; 9985 9986 /* Allocate memory for HBA structure */ 9987 phba = lpfc_hba_alloc(pdev); 9988 if (!phba) 9989 return -ENOMEM; 9990 9991 /* Perform generic PCI device enabling operation */ 9992 error = lpfc_enable_pci_dev(phba); 9993 if (error) 9994 goto out_free_phba; 9995 9996 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 9997 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 9998 if (error) 9999 goto out_disable_pci_dev; 10000 10001 /* Set up SLI-4 specific device PCI memory space */ 10002 error = lpfc_sli4_pci_mem_setup(phba); 10003 if (error) { 10004 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10005 "1410 Failed to set up pci memory space.\n"); 10006 goto out_disable_pci_dev; 10007 } 10008 10009 /* Set up phase-1 common device driver resources */ 10010 error = lpfc_setup_driver_resource_phase1(phba); 10011 if (error) { 10012 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10013 "1411 Failed to set up driver resource.\n"); 10014 goto out_unset_pci_mem_s4; 10015 } 10016 10017 /* Set up SLI-4 Specific device driver resources */ 10018 error = lpfc_sli4_driver_resource_setup(phba); 10019 if (error) { 10020 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10021 "1412 Failed to set up driver resource.\n"); 10022 goto out_unset_pci_mem_s4; 10023 } 10024 10025 /* Initialize and populate the iocb list per host */ 10026 10027 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10028 "2821 initialize iocb list %d.\n", 10029 phba->cfg_iocb_cnt*1024); 10030 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 10031 10032 if (error) { 10033 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10034 "1413 Failed to initialize iocb list.\n"); 10035 goto out_unset_driver_resource_s4; 10036 } 10037 10038 INIT_LIST_HEAD(&phba->active_rrq_list); 10039 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 10040 10041 /* Set up common device driver resources */ 10042 error = lpfc_setup_driver_resource_phase2(phba); 10043 if (error) { 10044 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10045 "1414 Failed to set up driver resource.\n"); 10046 goto out_free_iocb_list; 10047 } 10048 10049 /* Get the default values for Model Name and Description */ 10050 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 10051 10052 /* Create SCSI host to the physical port */ 10053 error = lpfc_create_shost(phba); 10054 if (error) { 10055 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10056 "1415 Failed to create scsi host.\n"); 10057 goto out_unset_driver_resource; 10058 } 10059 10060 /* Configure sysfs attributes */ 10061 vport = phba->pport; 10062 error = lpfc_alloc_sysfs_attr(vport); 10063 if (error) { 10064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10065 "1416 Failed to allocate sysfs attr\n"); 10066 goto out_destroy_shost; 10067 } 10068 10069 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 10070 /* Now, trying to enable interrupt and bring up the device */ 10071 cfg_mode = phba->cfg_use_msi; 10072 10073 /* Put device to a known state before enabling interrupt */ 10074 lpfc_stop_port(phba); 10075 /* Configure and enable interrupt */ 10076 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 10077 if (intr_mode == LPFC_INTR_ERROR) { 10078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10079 "0426 Failed to enable interrupt.\n"); 10080 error = -ENODEV; 10081 goto out_free_sysfs_attr; 10082 } 10083 /* Default to single EQ for non-MSI-X */ 10084 if (phba->intr_type != MSIX) 10085 adjusted_fcp_io_channel = 1; 10086 else 10087 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel; 10088 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel; 10089 /* Set up SLI-4 HBA */ 10090 if (lpfc_sli4_hba_setup(phba)) { 10091 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10092 "1421 Failed to set up hba\n"); 10093 error = -ENODEV; 10094 goto out_disable_intr; 10095 } 10096 10097 /* Log the current active interrupt mode */ 10098 phba->intr_mode = intr_mode; 10099 lpfc_log_intr_mode(phba, intr_mode); 10100 10101 /* Perform post initialization setup */ 10102 lpfc_post_init_setup(phba); 10103 10104 /* check for firmware upgrade or downgrade */ 10105 if (phba->cfg_request_firmware_upgrade) 10106 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 10107 10108 /* Check if there are static vports to be created. */ 10109 lpfc_create_static_vport(phba); 10110 return 0; 10111 10112 out_disable_intr: 10113 lpfc_sli4_disable_intr(phba); 10114 out_free_sysfs_attr: 10115 lpfc_free_sysfs_attr(vport); 10116 out_destroy_shost: 10117 lpfc_destroy_shost(phba); 10118 out_unset_driver_resource: 10119 lpfc_unset_driver_resource_phase2(phba); 10120 out_free_iocb_list: 10121 lpfc_free_iocb_list(phba); 10122 out_unset_driver_resource_s4: 10123 lpfc_sli4_driver_resource_unset(phba); 10124 out_unset_pci_mem_s4: 10125 lpfc_sli4_pci_mem_unset(phba); 10126 out_disable_pci_dev: 10127 lpfc_disable_pci_dev(phba); 10128 if (shost) 10129 scsi_host_put(shost); 10130 out_free_phba: 10131 lpfc_hba_free(phba); 10132 return error; 10133 } 10134 10135 /** 10136 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 10137 * @pdev: pointer to PCI device 10138 * 10139 * This routine is called from the kernel's PCI subsystem to device with 10140 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 10141 * removed from PCI bus, it performs all the necessary cleanup for the HBA 10142 * device to be removed from the PCI subsystem properly. 10143 **/ 10144 static void 10145 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 10146 { 10147 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10148 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 10149 struct lpfc_vport **vports; 10150 struct lpfc_hba *phba = vport->phba; 10151 int i; 10152 10153 /* Mark the device unloading flag */ 10154 spin_lock_irq(&phba->hbalock); 10155 vport->load_flag |= FC_UNLOADING; 10156 spin_unlock_irq(&phba->hbalock); 10157 10158 /* Free the HBA sysfs attributes */ 10159 lpfc_free_sysfs_attr(vport); 10160 10161 /* Release all the vports against this physical port */ 10162 vports = lpfc_create_vport_work_array(phba); 10163 if (vports != NULL) 10164 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 10165 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 10166 continue; 10167 fc_vport_terminate(vports[i]->fc_vport); 10168 } 10169 lpfc_destroy_vport_work_array(phba, vports); 10170 10171 /* Remove FC host and then SCSI host with the physical port */ 10172 fc_remove_host(shost); 10173 scsi_remove_host(shost); 10174 10175 /* Perform cleanup on the physical port */ 10176 lpfc_cleanup(vport); 10177 10178 /* 10179 * Bring down the SLI Layer. This step disables all interrupts, 10180 * clears the rings, discards all mailbox commands, and resets 10181 * the HBA FCoE function. 10182 */ 10183 lpfc_debugfs_terminate(vport); 10184 lpfc_sli4_hba_unset(phba); 10185 10186 spin_lock_irq(&phba->hbalock); 10187 list_del_init(&vport->listentry); 10188 spin_unlock_irq(&phba->hbalock); 10189 10190 /* Perform scsi free before driver resource_unset since scsi 10191 * buffers are released to their corresponding pools here. 10192 */ 10193 lpfc_scsi_free(phba); 10194 10195 lpfc_sli4_driver_resource_unset(phba); 10196 10197 /* Unmap adapter Control and Doorbell registers */ 10198 lpfc_sli4_pci_mem_unset(phba); 10199 10200 /* Release PCI resources and disable device's PCI function */ 10201 scsi_host_put(shost); 10202 lpfc_disable_pci_dev(phba); 10203 10204 /* Finally, free the driver's device data structure */ 10205 lpfc_hba_free(phba); 10206 10207 return; 10208 } 10209 10210 /** 10211 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 10212 * @pdev: pointer to PCI device 10213 * @msg: power management message 10214 * 10215 * This routine is called from the kernel's PCI subsystem to support system 10216 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 10217 * this method, it quiesces the device by stopping the driver's worker 10218 * thread for the device, turning off device's interrupt and DMA, and bring 10219 * the device offline. Note that as the driver implements the minimum PM 10220 * requirements to a power-aware driver's PM support for suspend/resume -- all 10221 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 10222 * method call will be treated as SUSPEND and the driver will fully 10223 * reinitialize its device during resume() method call, the driver will set 10224 * device to PCI_D3hot state in PCI config space instead of setting it 10225 * according to the @msg provided by the PM. 10226 * 10227 * Return code 10228 * 0 - driver suspended the device 10229 * Error otherwise 10230 **/ 10231 static int 10232 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 10233 { 10234 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10235 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10236 10237 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10238 "2843 PCI device Power Management suspend.\n"); 10239 10240 /* Bring down the device */ 10241 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10242 lpfc_offline(phba); 10243 kthread_stop(phba->worker_thread); 10244 10245 /* Disable interrupt from device */ 10246 lpfc_sli4_disable_intr(phba); 10247 lpfc_sli4_queue_destroy(phba); 10248 10249 /* Save device state to PCI config space */ 10250 pci_save_state(pdev); 10251 pci_set_power_state(pdev, PCI_D3hot); 10252 10253 return 0; 10254 } 10255 10256 /** 10257 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 10258 * @pdev: pointer to PCI device 10259 * 10260 * This routine is called from the kernel's PCI subsystem to support system 10261 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 10262 * this method, it restores the device's PCI config space state and fully 10263 * reinitializes the device and brings it online. Note that as the driver 10264 * implements the minimum PM requirements to a power-aware driver's PM for 10265 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 10266 * to the suspend() method call will be treated as SUSPEND and the driver 10267 * will fully reinitialize its device during resume() method call, the device 10268 * will be set to PCI_D0 directly in PCI config space before restoring the 10269 * state. 10270 * 10271 * Return code 10272 * 0 - driver suspended the device 10273 * Error otherwise 10274 **/ 10275 static int 10276 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 10277 { 10278 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10279 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10280 uint32_t intr_mode; 10281 int error; 10282 10283 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10284 "0292 PCI device Power Management resume.\n"); 10285 10286 /* Restore device state from PCI config space */ 10287 pci_set_power_state(pdev, PCI_D0); 10288 pci_restore_state(pdev); 10289 10290 /* 10291 * As the new kernel behavior of pci_restore_state() API call clears 10292 * device saved_state flag, need to save the restored state again. 10293 */ 10294 pci_save_state(pdev); 10295 10296 if (pdev->is_busmaster) 10297 pci_set_master(pdev); 10298 10299 /* Startup the kernel thread for this host adapter. */ 10300 phba->worker_thread = kthread_run(lpfc_do_work, phba, 10301 "lpfc_worker_%d", phba->brd_no); 10302 if (IS_ERR(phba->worker_thread)) { 10303 error = PTR_ERR(phba->worker_thread); 10304 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10305 "0293 PM resume failed to start worker " 10306 "thread: error=x%x.\n", error); 10307 return error; 10308 } 10309 10310 /* Configure and enable interrupt */ 10311 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 10312 if (intr_mode == LPFC_INTR_ERROR) { 10313 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10314 "0294 PM resume Failed to enable interrupt\n"); 10315 return -EIO; 10316 } else 10317 phba->intr_mode = intr_mode; 10318 10319 /* Restart HBA and bring it online */ 10320 lpfc_sli_brdrestart(phba); 10321 lpfc_online(phba); 10322 10323 /* Log the current active interrupt mode */ 10324 lpfc_log_intr_mode(phba, phba->intr_mode); 10325 10326 return 0; 10327 } 10328 10329 /** 10330 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 10331 * @phba: pointer to lpfc hba data structure. 10332 * 10333 * This routine is called to prepare the SLI4 device for PCI slot recover. It 10334 * aborts all the outstanding SCSI I/Os to the pci device. 10335 **/ 10336 static void 10337 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 10338 { 10339 struct lpfc_sli *psli = &phba->sli; 10340 struct lpfc_sli_ring *pring; 10341 10342 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10343 "2828 PCI channel I/O abort preparing for recovery\n"); 10344 /* 10345 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 10346 * and let the SCSI mid-layer to retry them to recover. 10347 */ 10348 pring = &psli->ring[psli->fcp_ring]; 10349 lpfc_sli_abort_iocb_ring(phba, pring); 10350 } 10351 10352 /** 10353 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 10354 * @phba: pointer to lpfc hba data structure. 10355 * 10356 * This routine is called to prepare the SLI4 device for PCI slot reset. It 10357 * disables the device interrupt and pci device, and aborts the internal FCP 10358 * pending I/Os. 10359 **/ 10360 static void 10361 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 10362 { 10363 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10364 "2826 PCI channel disable preparing for reset\n"); 10365 10366 /* Block any management I/Os to the device */ 10367 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 10368 10369 /* Block all SCSI devices' I/Os on the host */ 10370 lpfc_scsi_dev_block(phba); 10371 10372 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 10373 lpfc_sli_flush_fcp_rings(phba); 10374 10375 /* stop all timers */ 10376 lpfc_stop_hba_timers(phba); 10377 10378 /* Disable interrupt and pci device */ 10379 lpfc_sli4_disable_intr(phba); 10380 lpfc_sli4_queue_destroy(phba); 10381 pci_disable_device(phba->pcidev); 10382 } 10383 10384 /** 10385 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 10386 * @phba: pointer to lpfc hba data structure. 10387 * 10388 * This routine is called to prepare the SLI4 device for PCI slot permanently 10389 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 10390 * pending I/Os. 10391 **/ 10392 static void 10393 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 10394 { 10395 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10396 "2827 PCI channel permanent disable for failure\n"); 10397 10398 /* Block all SCSI devices' I/Os on the host */ 10399 lpfc_scsi_dev_block(phba); 10400 10401 /* stop all timers */ 10402 lpfc_stop_hba_timers(phba); 10403 10404 /* Clean up all driver's outstanding SCSI I/Os */ 10405 lpfc_sli_flush_fcp_rings(phba); 10406 } 10407 10408 /** 10409 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 10410 * @pdev: pointer to PCI device. 10411 * @state: the current PCI connection state. 10412 * 10413 * This routine is called from the PCI subsystem for error handling to device 10414 * with SLI-4 interface spec. This function is called by the PCI subsystem 10415 * after a PCI bus error affecting this device has been detected. When this 10416 * function is invoked, it will need to stop all the I/Os and interrupt(s) 10417 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 10418 * for the PCI subsystem to perform proper recovery as desired. 10419 * 10420 * Return codes 10421 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10422 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10423 **/ 10424 static pci_ers_result_t 10425 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 10426 { 10427 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10428 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10429 10430 switch (state) { 10431 case pci_channel_io_normal: 10432 /* Non-fatal error, prepare for recovery */ 10433 lpfc_sli4_prep_dev_for_recover(phba); 10434 return PCI_ERS_RESULT_CAN_RECOVER; 10435 case pci_channel_io_frozen: 10436 /* Fatal error, prepare for slot reset */ 10437 lpfc_sli4_prep_dev_for_reset(phba); 10438 return PCI_ERS_RESULT_NEED_RESET; 10439 case pci_channel_io_perm_failure: 10440 /* Permanent failure, prepare for device down */ 10441 lpfc_sli4_prep_dev_for_perm_failure(phba); 10442 return PCI_ERS_RESULT_DISCONNECT; 10443 default: 10444 /* Unknown state, prepare and request slot reset */ 10445 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10446 "2825 Unknown PCI error state: x%x\n", state); 10447 lpfc_sli4_prep_dev_for_reset(phba); 10448 return PCI_ERS_RESULT_NEED_RESET; 10449 } 10450 } 10451 10452 /** 10453 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 10454 * @pdev: pointer to PCI device. 10455 * 10456 * This routine is called from the PCI subsystem for error handling to device 10457 * with SLI-4 interface spec. It is called after PCI bus has been reset to 10458 * restart the PCI card from scratch, as if from a cold-boot. During the 10459 * PCI subsystem error recovery, after the driver returns 10460 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 10461 * recovery and then call this routine before calling the .resume method to 10462 * recover the device. This function will initialize the HBA device, enable 10463 * the interrupt, but it will just put the HBA to offline state without 10464 * passing any I/O traffic. 10465 * 10466 * Return codes 10467 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10468 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10469 */ 10470 static pci_ers_result_t 10471 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 10472 { 10473 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10474 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10475 struct lpfc_sli *psli = &phba->sli; 10476 uint32_t intr_mode; 10477 10478 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 10479 if (pci_enable_device_mem(pdev)) { 10480 printk(KERN_ERR "lpfc: Cannot re-enable " 10481 "PCI device after reset.\n"); 10482 return PCI_ERS_RESULT_DISCONNECT; 10483 } 10484 10485 pci_restore_state(pdev); 10486 10487 /* 10488 * As the new kernel behavior of pci_restore_state() API call clears 10489 * device saved_state flag, need to save the restored state again. 10490 */ 10491 pci_save_state(pdev); 10492 10493 if (pdev->is_busmaster) 10494 pci_set_master(pdev); 10495 10496 spin_lock_irq(&phba->hbalock); 10497 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10498 spin_unlock_irq(&phba->hbalock); 10499 10500 /* Configure and enable interrupt */ 10501 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 10502 if (intr_mode == LPFC_INTR_ERROR) { 10503 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10504 "2824 Cannot re-enable interrupt after " 10505 "slot reset.\n"); 10506 return PCI_ERS_RESULT_DISCONNECT; 10507 } else 10508 phba->intr_mode = intr_mode; 10509 10510 /* Log the current active interrupt mode */ 10511 lpfc_log_intr_mode(phba, phba->intr_mode); 10512 10513 return PCI_ERS_RESULT_RECOVERED; 10514 } 10515 10516 /** 10517 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 10518 * @pdev: pointer to PCI device 10519 * 10520 * This routine is called from the PCI subsystem for error handling to device 10521 * with SLI-4 interface spec. It is called when kernel error recovery tells 10522 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10523 * error recovery. After this call, traffic can start to flow from this device 10524 * again. 10525 **/ 10526 static void 10527 lpfc_io_resume_s4(struct pci_dev *pdev) 10528 { 10529 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10530 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10531 10532 /* 10533 * In case of slot reset, as function reset is performed through 10534 * mailbox command which needs DMA to be enabled, this operation 10535 * has to be moved to the io resume phase. Taking device offline 10536 * will perform the necessary cleanup. 10537 */ 10538 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 10539 /* Perform device reset */ 10540 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10541 lpfc_offline(phba); 10542 lpfc_sli_brdrestart(phba); 10543 /* Bring the device back online */ 10544 lpfc_online(phba); 10545 } 10546 10547 /* Clean up Advanced Error Reporting (AER) if needed */ 10548 if (phba->hba_flag & HBA_AER_ENABLED) 10549 pci_cleanup_aer_uncorrect_error_status(pdev); 10550 } 10551 10552 /** 10553 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 10554 * @pdev: pointer to PCI device 10555 * @pid: pointer to PCI device identifier 10556 * 10557 * This routine is to be registered to the kernel's PCI subsystem. When an 10558 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 10559 * at PCI device-specific information of the device and driver to see if the 10560 * driver state that it can support this kind of device. If the match is 10561 * successful, the driver core invokes this routine. This routine dispatches 10562 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 10563 * do all the initialization that it needs to do to handle the HBA device 10564 * properly. 10565 * 10566 * Return code 10567 * 0 - driver can claim the device 10568 * negative value - driver can not claim the device 10569 **/ 10570 static int 10571 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 10572 { 10573 int rc; 10574 struct lpfc_sli_intf intf; 10575 10576 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 10577 return -ENODEV; 10578 10579 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 10580 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 10581 rc = lpfc_pci_probe_one_s4(pdev, pid); 10582 else 10583 rc = lpfc_pci_probe_one_s3(pdev, pid); 10584 10585 return rc; 10586 } 10587 10588 /** 10589 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 10590 * @pdev: pointer to PCI device 10591 * 10592 * This routine is to be registered to the kernel's PCI subsystem. When an 10593 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 10594 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 10595 * remove routine, which will perform all the necessary cleanup for the 10596 * device to be removed from the PCI subsystem properly. 10597 **/ 10598 static void 10599 lpfc_pci_remove_one(struct pci_dev *pdev) 10600 { 10601 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10602 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10603 10604 switch (phba->pci_dev_grp) { 10605 case LPFC_PCI_DEV_LP: 10606 lpfc_pci_remove_one_s3(pdev); 10607 break; 10608 case LPFC_PCI_DEV_OC: 10609 lpfc_pci_remove_one_s4(pdev); 10610 break; 10611 default: 10612 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10613 "1424 Invalid PCI device group: 0x%x\n", 10614 phba->pci_dev_grp); 10615 break; 10616 } 10617 return; 10618 } 10619 10620 /** 10621 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 10622 * @pdev: pointer to PCI device 10623 * @msg: power management message 10624 * 10625 * This routine is to be registered to the kernel's PCI subsystem to support 10626 * system Power Management (PM). When PM invokes this method, it dispatches 10627 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 10628 * suspend the device. 10629 * 10630 * Return code 10631 * 0 - driver suspended the device 10632 * Error otherwise 10633 **/ 10634 static int 10635 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 10636 { 10637 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10638 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10639 int rc = -ENODEV; 10640 10641 switch (phba->pci_dev_grp) { 10642 case LPFC_PCI_DEV_LP: 10643 rc = lpfc_pci_suspend_one_s3(pdev, msg); 10644 break; 10645 case LPFC_PCI_DEV_OC: 10646 rc = lpfc_pci_suspend_one_s4(pdev, msg); 10647 break; 10648 default: 10649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10650 "1425 Invalid PCI device group: 0x%x\n", 10651 phba->pci_dev_grp); 10652 break; 10653 } 10654 return rc; 10655 } 10656 10657 /** 10658 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 10659 * @pdev: pointer to PCI device 10660 * 10661 * This routine is to be registered to the kernel's PCI subsystem to support 10662 * system Power Management (PM). When PM invokes this method, it dispatches 10663 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 10664 * resume the device. 10665 * 10666 * Return code 10667 * 0 - driver suspended the device 10668 * Error otherwise 10669 **/ 10670 static int 10671 lpfc_pci_resume_one(struct pci_dev *pdev) 10672 { 10673 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10674 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10675 int rc = -ENODEV; 10676 10677 switch (phba->pci_dev_grp) { 10678 case LPFC_PCI_DEV_LP: 10679 rc = lpfc_pci_resume_one_s3(pdev); 10680 break; 10681 case LPFC_PCI_DEV_OC: 10682 rc = lpfc_pci_resume_one_s4(pdev); 10683 break; 10684 default: 10685 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10686 "1426 Invalid PCI device group: 0x%x\n", 10687 phba->pci_dev_grp); 10688 break; 10689 } 10690 return rc; 10691 } 10692 10693 /** 10694 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 10695 * @pdev: pointer to PCI device. 10696 * @state: the current PCI connection state. 10697 * 10698 * This routine is registered to the PCI subsystem for error handling. This 10699 * function is called by the PCI subsystem after a PCI bus error affecting 10700 * this device has been detected. When this routine is invoked, it dispatches 10701 * the action to the proper SLI-3 or SLI-4 device error detected handling 10702 * routine, which will perform the proper error detected operation. 10703 * 10704 * Return codes 10705 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10706 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10707 **/ 10708 static pci_ers_result_t 10709 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 10710 { 10711 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10712 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10713 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 10714 10715 switch (phba->pci_dev_grp) { 10716 case LPFC_PCI_DEV_LP: 10717 rc = lpfc_io_error_detected_s3(pdev, state); 10718 break; 10719 case LPFC_PCI_DEV_OC: 10720 rc = lpfc_io_error_detected_s4(pdev, state); 10721 break; 10722 default: 10723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10724 "1427 Invalid PCI device group: 0x%x\n", 10725 phba->pci_dev_grp); 10726 break; 10727 } 10728 return rc; 10729 } 10730 10731 /** 10732 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 10733 * @pdev: pointer to PCI device. 10734 * 10735 * This routine is registered to the PCI subsystem for error handling. This 10736 * function is called after PCI bus has been reset to restart the PCI card 10737 * from scratch, as if from a cold-boot. When this routine is invoked, it 10738 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 10739 * routine, which will perform the proper device reset. 10740 * 10741 * Return codes 10742 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10743 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10744 **/ 10745 static pci_ers_result_t 10746 lpfc_io_slot_reset(struct pci_dev *pdev) 10747 { 10748 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10749 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10750 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 10751 10752 switch (phba->pci_dev_grp) { 10753 case LPFC_PCI_DEV_LP: 10754 rc = lpfc_io_slot_reset_s3(pdev); 10755 break; 10756 case LPFC_PCI_DEV_OC: 10757 rc = lpfc_io_slot_reset_s4(pdev); 10758 break; 10759 default: 10760 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10761 "1428 Invalid PCI device group: 0x%x\n", 10762 phba->pci_dev_grp); 10763 break; 10764 } 10765 return rc; 10766 } 10767 10768 /** 10769 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 10770 * @pdev: pointer to PCI device 10771 * 10772 * This routine is registered to the PCI subsystem for error handling. It 10773 * is called when kernel error recovery tells the lpfc driver that it is 10774 * OK to resume normal PCI operation after PCI bus error recovery. When 10775 * this routine is invoked, it dispatches the action to the proper SLI-3 10776 * or SLI-4 device io_resume routine, which will resume the device operation. 10777 **/ 10778 static void 10779 lpfc_io_resume(struct pci_dev *pdev) 10780 { 10781 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10782 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10783 10784 switch (phba->pci_dev_grp) { 10785 case LPFC_PCI_DEV_LP: 10786 lpfc_io_resume_s3(pdev); 10787 break; 10788 case LPFC_PCI_DEV_OC: 10789 lpfc_io_resume_s4(pdev); 10790 break; 10791 default: 10792 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10793 "1429 Invalid PCI device group: 0x%x\n", 10794 phba->pci_dev_grp); 10795 break; 10796 } 10797 return; 10798 } 10799 10800 static struct pci_device_id lpfc_id_table[] = { 10801 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 10802 PCI_ANY_ID, PCI_ANY_ID, }, 10803 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 10804 PCI_ANY_ID, PCI_ANY_ID, }, 10805 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 10806 PCI_ANY_ID, PCI_ANY_ID, }, 10807 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 10808 PCI_ANY_ID, PCI_ANY_ID, }, 10809 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 10810 PCI_ANY_ID, PCI_ANY_ID, }, 10811 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 10812 PCI_ANY_ID, PCI_ANY_ID, }, 10813 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 10814 PCI_ANY_ID, PCI_ANY_ID, }, 10815 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 10816 PCI_ANY_ID, PCI_ANY_ID, }, 10817 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 10818 PCI_ANY_ID, PCI_ANY_ID, }, 10819 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 10820 PCI_ANY_ID, PCI_ANY_ID, }, 10821 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 10822 PCI_ANY_ID, PCI_ANY_ID, }, 10823 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 10824 PCI_ANY_ID, PCI_ANY_ID, }, 10825 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 10826 PCI_ANY_ID, PCI_ANY_ID, }, 10827 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 10828 PCI_ANY_ID, PCI_ANY_ID, }, 10829 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 10830 PCI_ANY_ID, PCI_ANY_ID, }, 10831 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 10832 PCI_ANY_ID, PCI_ANY_ID, }, 10833 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 10834 PCI_ANY_ID, PCI_ANY_ID, }, 10835 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 10836 PCI_ANY_ID, PCI_ANY_ID, }, 10837 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 10838 PCI_ANY_ID, PCI_ANY_ID, }, 10839 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 10840 PCI_ANY_ID, PCI_ANY_ID, }, 10841 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 10842 PCI_ANY_ID, PCI_ANY_ID, }, 10843 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 10844 PCI_ANY_ID, PCI_ANY_ID, }, 10845 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 10846 PCI_ANY_ID, PCI_ANY_ID, }, 10847 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 10848 PCI_ANY_ID, PCI_ANY_ID, }, 10849 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 10850 PCI_ANY_ID, PCI_ANY_ID, }, 10851 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 10852 PCI_ANY_ID, PCI_ANY_ID, }, 10853 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 10854 PCI_ANY_ID, PCI_ANY_ID, }, 10855 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 10856 PCI_ANY_ID, PCI_ANY_ID, }, 10857 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 10858 PCI_ANY_ID, PCI_ANY_ID, }, 10859 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 10860 PCI_ANY_ID, PCI_ANY_ID, }, 10861 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 10862 PCI_ANY_ID, PCI_ANY_ID, }, 10863 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 10864 PCI_ANY_ID, PCI_ANY_ID, }, 10865 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 10866 PCI_ANY_ID, PCI_ANY_ID, }, 10867 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 10868 PCI_ANY_ID, PCI_ANY_ID, }, 10869 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 10870 PCI_ANY_ID, PCI_ANY_ID, }, 10871 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 10872 PCI_ANY_ID, PCI_ANY_ID, }, 10873 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 10874 PCI_ANY_ID, PCI_ANY_ID, }, 10875 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 10876 PCI_ANY_ID, PCI_ANY_ID, }, 10877 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 10878 PCI_ANY_ID, PCI_ANY_ID, }, 10879 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 10880 PCI_ANY_ID, PCI_ANY_ID, }, 10881 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 10882 PCI_ANY_ID, PCI_ANY_ID, }, 10883 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, 10884 PCI_ANY_ID, PCI_ANY_ID, }, 10885 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, 10886 PCI_ANY_ID, PCI_ANY_ID, }, 10887 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF, 10888 PCI_ANY_ID, PCI_ANY_ID, }, 10889 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF, 10890 PCI_ANY_ID, PCI_ANY_ID, }, 10891 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK, 10892 PCI_ANY_ID, PCI_ANY_ID, }, 10893 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF, 10894 PCI_ANY_ID, PCI_ANY_ID, }, 10895 { 0 } 10896 }; 10897 10898 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 10899 10900 static const struct pci_error_handlers lpfc_err_handler = { 10901 .error_detected = lpfc_io_error_detected, 10902 .slot_reset = lpfc_io_slot_reset, 10903 .resume = lpfc_io_resume, 10904 }; 10905 10906 static struct pci_driver lpfc_driver = { 10907 .name = LPFC_DRIVER_NAME, 10908 .id_table = lpfc_id_table, 10909 .probe = lpfc_pci_probe_one, 10910 .remove = lpfc_pci_remove_one, 10911 .suspend = lpfc_pci_suspend_one, 10912 .resume = lpfc_pci_resume_one, 10913 .err_handler = &lpfc_err_handler, 10914 }; 10915 10916 static const struct file_operations lpfc_mgmt_fop = { 10917 .owner = THIS_MODULE, 10918 }; 10919 10920 static struct miscdevice lpfc_mgmt_dev = { 10921 .minor = MISC_DYNAMIC_MINOR, 10922 .name = "lpfcmgmt", 10923 .fops = &lpfc_mgmt_fop, 10924 }; 10925 10926 /** 10927 * lpfc_init - lpfc module initialization routine 10928 * 10929 * This routine is to be invoked when the lpfc module is loaded into the 10930 * kernel. The special kernel macro module_init() is used to indicate the 10931 * role of this routine to the kernel as lpfc module entry point. 10932 * 10933 * Return codes 10934 * 0 - successful 10935 * -ENOMEM - FC attach transport failed 10936 * all others - failed 10937 */ 10938 static int __init 10939 lpfc_init(void) 10940 { 10941 int cpu; 10942 int error = 0; 10943 10944 printk(LPFC_MODULE_DESC "\n"); 10945 printk(LPFC_COPYRIGHT "\n"); 10946 10947 error = misc_register(&lpfc_mgmt_dev); 10948 if (error) 10949 printk(KERN_ERR "Could not register lpfcmgmt device, " 10950 "misc_register returned with status %d", error); 10951 10952 if (lpfc_enable_npiv) { 10953 lpfc_transport_functions.vport_create = lpfc_vport_create; 10954 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 10955 } 10956 lpfc_transport_template = 10957 fc_attach_transport(&lpfc_transport_functions); 10958 if (lpfc_transport_template == NULL) 10959 return -ENOMEM; 10960 if (lpfc_enable_npiv) { 10961 lpfc_vport_transport_template = 10962 fc_attach_transport(&lpfc_vport_transport_functions); 10963 if (lpfc_vport_transport_template == NULL) { 10964 fc_release_transport(lpfc_transport_template); 10965 return -ENOMEM; 10966 } 10967 } 10968 10969 /* Initialize in case vector mapping is needed */ 10970 for (cpu = 0; cpu < LPFC_MAX_CPU; cpu++) 10971 lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY; 10972 10973 error = pci_register_driver(&lpfc_driver); 10974 if (error) { 10975 fc_release_transport(lpfc_transport_template); 10976 if (lpfc_enable_npiv) 10977 fc_release_transport(lpfc_vport_transport_template); 10978 } 10979 10980 return error; 10981 } 10982 10983 /** 10984 * lpfc_exit - lpfc module removal routine 10985 * 10986 * This routine is invoked when the lpfc module is removed from the kernel. 10987 * The special kernel macro module_exit() is used to indicate the role of 10988 * this routine to the kernel as lpfc module exit point. 10989 */ 10990 static void __exit 10991 lpfc_exit(void) 10992 { 10993 misc_deregister(&lpfc_mgmt_dev); 10994 pci_unregister_driver(&lpfc_driver); 10995 fc_release_transport(lpfc_transport_template); 10996 if (lpfc_enable_npiv) 10997 fc_release_transport(lpfc_vport_transport_template); 10998 if (_dump_buf_data) { 10999 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 11000 "_dump_buf_data at 0x%p\n", 11001 (1L << _dump_buf_data_order), _dump_buf_data); 11002 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 11003 } 11004 11005 if (_dump_buf_dif) { 11006 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 11007 "_dump_buf_dif at 0x%p\n", 11008 (1L << _dump_buf_dif_order), _dump_buf_dif); 11009 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 11010 } 11011 } 11012 11013 module_init(lpfc_init); 11014 module_exit(lpfc_exit); 11015 MODULE_LICENSE("GPL"); 11016 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 11017 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 11018 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 11019