1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2013 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 10 * modify it under the terms of version 2 of the GNU General * 11 * Public License as published by the Free Software Foundation. * 12 * This program is distributed in the hope that it will be useful. * 13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17 * TO BE LEGALLY INVALID. See the GNU General Public License for * 18 * more details, a copy of which can be found in the file COPYING * 19 * included with this package. * 20 *******************************************************************/ 21 22 #include <linux/blkdev.h> 23 #include <linux/delay.h> 24 #include <linux/dma-mapping.h> 25 #include <linux/idr.h> 26 #include <linux/interrupt.h> 27 #include <linux/module.h> 28 #include <linux/kthread.h> 29 #include <linux/pci.h> 30 #include <linux/spinlock.h> 31 #include <linux/ctype.h> 32 #include <linux/aer.h> 33 #include <linux/slab.h> 34 #include <linux/firmware.h> 35 #include <linux/miscdevice.h> 36 #include <linux/percpu.h> 37 38 #include <scsi/scsi.h> 39 #include <scsi/scsi_device.h> 40 #include <scsi/scsi_host.h> 41 #include <scsi/scsi_transport_fc.h> 42 43 #include "lpfc_hw4.h" 44 #include "lpfc_hw.h" 45 #include "lpfc_sli.h" 46 #include "lpfc_sli4.h" 47 #include "lpfc_nl.h" 48 #include "lpfc_disc.h" 49 #include "lpfc_scsi.h" 50 #include "lpfc.h" 51 #include "lpfc_logmsg.h" 52 #include "lpfc_crtn.h" 53 #include "lpfc_vport.h" 54 #include "lpfc_version.h" 55 56 char *_dump_buf_data; 57 unsigned long _dump_buf_data_order; 58 char *_dump_buf_dif; 59 unsigned long _dump_buf_dif_order; 60 spinlock_t _dump_buf_lock; 61 62 /* Used when mapping IRQ vectors in a driver centric manner */ 63 uint16_t *lpfc_used_cpu; 64 uint32_t lpfc_present_cpu; 65 66 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 67 static int lpfc_post_rcv_buf(struct lpfc_hba *); 68 static int lpfc_sli4_queue_verify(struct lpfc_hba *); 69 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 70 static int lpfc_setup_endian_order(struct lpfc_hba *); 71 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 72 static void lpfc_free_els_sgl_list(struct lpfc_hba *); 73 static void lpfc_init_sgl_list(struct lpfc_hba *); 74 static int lpfc_init_active_sgl_array(struct lpfc_hba *); 75 static void lpfc_free_active_sgl(struct lpfc_hba *); 76 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 77 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 78 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 79 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 80 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 81 static void lpfc_sli4_disable_intr(struct lpfc_hba *); 82 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t); 83 84 static struct scsi_transport_template *lpfc_transport_template = NULL; 85 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 86 static DEFINE_IDR(lpfc_hba_index); 87 88 /** 89 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 90 * @phba: pointer to lpfc hba data structure. 91 * 92 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 93 * mailbox command. It retrieves the revision information from the HBA and 94 * collects the Vital Product Data (VPD) about the HBA for preparing the 95 * configuration of the HBA. 96 * 97 * Return codes: 98 * 0 - success. 99 * -ERESTART - requests the SLI layer to reset the HBA and try again. 100 * Any other value - indicates an error. 101 **/ 102 int 103 lpfc_config_port_prep(struct lpfc_hba *phba) 104 { 105 lpfc_vpd_t *vp = &phba->vpd; 106 int i = 0, rc; 107 LPFC_MBOXQ_t *pmb; 108 MAILBOX_t *mb; 109 char *lpfc_vpd_data = NULL; 110 uint16_t offset = 0; 111 static char licensed[56] = 112 "key unlock for use with gnu public licensed code only\0"; 113 static int init_key = 1; 114 115 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 116 if (!pmb) { 117 phba->link_state = LPFC_HBA_ERROR; 118 return -ENOMEM; 119 } 120 121 mb = &pmb->u.mb; 122 phba->link_state = LPFC_INIT_MBX_CMDS; 123 124 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 125 if (init_key) { 126 uint32_t *ptext = (uint32_t *) licensed; 127 128 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 129 *ptext = cpu_to_be32(*ptext); 130 init_key = 0; 131 } 132 133 lpfc_read_nv(phba, pmb); 134 memset((char*)mb->un.varRDnvp.rsvd3, 0, 135 sizeof (mb->un.varRDnvp.rsvd3)); 136 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 137 sizeof (licensed)); 138 139 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 140 141 if (rc != MBX_SUCCESS) { 142 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 143 "0324 Config Port initialization " 144 "error, mbxCmd x%x READ_NVPARM, " 145 "mbxStatus x%x\n", 146 mb->mbxCommand, mb->mbxStatus); 147 mempool_free(pmb, phba->mbox_mem_pool); 148 return -ERESTART; 149 } 150 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 151 sizeof(phba->wwnn)); 152 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 153 sizeof(phba->wwpn)); 154 } 155 156 phba->sli3_options = 0x0; 157 158 /* Setup and issue mailbox READ REV command */ 159 lpfc_read_rev(phba, pmb); 160 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 161 if (rc != MBX_SUCCESS) { 162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 163 "0439 Adapter failed to init, mbxCmd x%x " 164 "READ_REV, mbxStatus x%x\n", 165 mb->mbxCommand, mb->mbxStatus); 166 mempool_free( pmb, phba->mbox_mem_pool); 167 return -ERESTART; 168 } 169 170 171 /* 172 * The value of rr must be 1 since the driver set the cv field to 1. 173 * This setting requires the FW to set all revision fields. 174 */ 175 if (mb->un.varRdRev.rr == 0) { 176 vp->rev.rBit = 0; 177 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 178 "0440 Adapter failed to init, READ_REV has " 179 "missing revision information.\n"); 180 mempool_free(pmb, phba->mbox_mem_pool); 181 return -ERESTART; 182 } 183 184 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 185 mempool_free(pmb, phba->mbox_mem_pool); 186 return -EINVAL; 187 } 188 189 /* Save information as VPD data */ 190 vp->rev.rBit = 1; 191 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 192 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 193 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 194 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 195 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 196 vp->rev.biuRev = mb->un.varRdRev.biuRev; 197 vp->rev.smRev = mb->un.varRdRev.smRev; 198 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 199 vp->rev.endecRev = mb->un.varRdRev.endecRev; 200 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 201 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 202 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 203 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 204 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 205 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 206 207 /* If the sli feature level is less then 9, we must 208 * tear down all RPIs and VPIs on link down if NPIV 209 * is enabled. 210 */ 211 if (vp->rev.feaLevelHigh < 9) 212 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 213 214 if (lpfc_is_LC_HBA(phba->pcidev->device)) 215 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 216 sizeof (phba->RandomData)); 217 218 /* Get adapter VPD information */ 219 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 220 if (!lpfc_vpd_data) 221 goto out_free_mbox; 222 do { 223 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 224 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 225 226 if (rc != MBX_SUCCESS) { 227 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 228 "0441 VPD not present on adapter, " 229 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 230 mb->mbxCommand, mb->mbxStatus); 231 mb->un.varDmp.word_cnt = 0; 232 } 233 /* dump mem may return a zero when finished or we got a 234 * mailbox error, either way we are done. 235 */ 236 if (mb->un.varDmp.word_cnt == 0) 237 break; 238 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 239 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 240 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 241 lpfc_vpd_data + offset, 242 mb->un.varDmp.word_cnt); 243 offset += mb->un.varDmp.word_cnt; 244 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 245 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 246 247 kfree(lpfc_vpd_data); 248 out_free_mbox: 249 mempool_free(pmb, phba->mbox_mem_pool); 250 return 0; 251 } 252 253 /** 254 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 255 * @phba: pointer to lpfc hba data structure. 256 * @pmboxq: pointer to the driver internal queue element for mailbox command. 257 * 258 * This is the completion handler for driver's configuring asynchronous event 259 * mailbox command to the device. If the mailbox command returns successfully, 260 * it will set internal async event support flag to 1; otherwise, it will 261 * set internal async event support flag to 0. 262 **/ 263 static void 264 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 265 { 266 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 267 phba->temp_sensor_support = 1; 268 else 269 phba->temp_sensor_support = 0; 270 mempool_free(pmboxq, phba->mbox_mem_pool); 271 return; 272 } 273 274 /** 275 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 276 * @phba: pointer to lpfc hba data structure. 277 * @pmboxq: pointer to the driver internal queue element for mailbox command. 278 * 279 * This is the completion handler for dump mailbox command for getting 280 * wake up parameters. When this command complete, the response contain 281 * Option rom version of the HBA. This function translate the version number 282 * into a human readable string and store it in OptionROMVersion. 283 **/ 284 static void 285 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 286 { 287 struct prog_id *prg; 288 uint32_t prog_id_word; 289 char dist = ' '; 290 /* character array used for decoding dist type. */ 291 char dist_char[] = "nabx"; 292 293 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 294 mempool_free(pmboxq, phba->mbox_mem_pool); 295 return; 296 } 297 298 prg = (struct prog_id *) &prog_id_word; 299 300 /* word 7 contain option rom version */ 301 prog_id_word = pmboxq->u.mb.un.varWords[7]; 302 303 /* Decode the Option rom version word to a readable string */ 304 if (prg->dist < 4) 305 dist = dist_char[prg->dist]; 306 307 if ((prg->dist == 3) && (prg->num == 0)) 308 sprintf(phba->OptionROMVersion, "%d.%d%d", 309 prg->ver, prg->rev, prg->lev); 310 else 311 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 312 prg->ver, prg->rev, prg->lev, 313 dist, prg->num); 314 mempool_free(pmboxq, phba->mbox_mem_pool); 315 return; 316 } 317 318 /** 319 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 320 * cfg_soft_wwnn, cfg_soft_wwpn 321 * @vport: pointer to lpfc vport data structure. 322 * 323 * 324 * Return codes 325 * None. 326 **/ 327 void 328 lpfc_update_vport_wwn(struct lpfc_vport *vport) 329 { 330 /* If the soft name exists then update it using the service params */ 331 if (vport->phba->cfg_soft_wwnn) 332 u64_to_wwn(vport->phba->cfg_soft_wwnn, 333 vport->fc_sparam.nodeName.u.wwn); 334 if (vport->phba->cfg_soft_wwpn) 335 u64_to_wwn(vport->phba->cfg_soft_wwpn, 336 vport->fc_sparam.portName.u.wwn); 337 338 /* 339 * If the name is empty or there exists a soft name 340 * then copy the service params name, otherwise use the fc name 341 */ 342 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 343 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 344 sizeof(struct lpfc_name)); 345 else 346 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 347 sizeof(struct lpfc_name)); 348 349 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn) 350 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 351 sizeof(struct lpfc_name)); 352 else 353 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 354 sizeof(struct lpfc_name)); 355 } 356 357 /** 358 * lpfc_config_port_post - Perform lpfc initialization after config port 359 * @phba: pointer to lpfc hba data structure. 360 * 361 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 362 * command call. It performs all internal resource and state setups on the 363 * port: post IOCB buffers, enable appropriate host interrupt attentions, 364 * ELS ring timers, etc. 365 * 366 * Return codes 367 * 0 - success. 368 * Any other value - error. 369 **/ 370 int 371 lpfc_config_port_post(struct lpfc_hba *phba) 372 { 373 struct lpfc_vport *vport = phba->pport; 374 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 375 LPFC_MBOXQ_t *pmb; 376 MAILBOX_t *mb; 377 struct lpfc_dmabuf *mp; 378 struct lpfc_sli *psli = &phba->sli; 379 uint32_t status, timeout; 380 int i, j; 381 int rc; 382 383 spin_lock_irq(&phba->hbalock); 384 /* 385 * If the Config port completed correctly the HBA is not 386 * over heated any more. 387 */ 388 if (phba->over_temp_state == HBA_OVER_TEMP) 389 phba->over_temp_state = HBA_NORMAL_TEMP; 390 spin_unlock_irq(&phba->hbalock); 391 392 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 393 if (!pmb) { 394 phba->link_state = LPFC_HBA_ERROR; 395 return -ENOMEM; 396 } 397 mb = &pmb->u.mb; 398 399 /* Get login parameters for NID. */ 400 rc = lpfc_read_sparam(phba, pmb, 0); 401 if (rc) { 402 mempool_free(pmb, phba->mbox_mem_pool); 403 return -ENOMEM; 404 } 405 406 pmb->vport = vport; 407 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 408 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 409 "0448 Adapter failed init, mbxCmd x%x " 410 "READ_SPARM mbxStatus x%x\n", 411 mb->mbxCommand, mb->mbxStatus); 412 phba->link_state = LPFC_HBA_ERROR; 413 mp = (struct lpfc_dmabuf *) pmb->context1; 414 mempool_free(pmb, phba->mbox_mem_pool); 415 lpfc_mbuf_free(phba, mp->virt, mp->phys); 416 kfree(mp); 417 return -EIO; 418 } 419 420 mp = (struct lpfc_dmabuf *) pmb->context1; 421 422 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 423 lpfc_mbuf_free(phba, mp->virt, mp->phys); 424 kfree(mp); 425 pmb->context1 = NULL; 426 lpfc_update_vport_wwn(vport); 427 428 /* Update the fc_host data structures with new wwn. */ 429 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 430 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 431 fc_host_max_npiv_vports(shost) = phba->max_vpi; 432 433 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 434 /* This should be consolidated into parse_vpd ? - mr */ 435 if (phba->SerialNumber[0] == 0) { 436 uint8_t *outptr; 437 438 outptr = &vport->fc_nodename.u.s.IEEE[0]; 439 for (i = 0; i < 12; i++) { 440 status = *outptr++; 441 j = ((status & 0xf0) >> 4); 442 if (j <= 9) 443 phba->SerialNumber[i] = 444 (char)((uint8_t) 0x30 + (uint8_t) j); 445 else 446 phba->SerialNumber[i] = 447 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 448 i++; 449 j = (status & 0xf); 450 if (j <= 9) 451 phba->SerialNumber[i] = 452 (char)((uint8_t) 0x30 + (uint8_t) j); 453 else 454 phba->SerialNumber[i] = 455 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 456 } 457 } 458 459 lpfc_read_config(phba, pmb); 460 pmb->vport = vport; 461 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 462 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 463 "0453 Adapter failed to init, mbxCmd x%x " 464 "READ_CONFIG, mbxStatus x%x\n", 465 mb->mbxCommand, mb->mbxStatus); 466 phba->link_state = LPFC_HBA_ERROR; 467 mempool_free( pmb, phba->mbox_mem_pool); 468 return -EIO; 469 } 470 471 /* Check if the port is disabled */ 472 lpfc_sli_read_link_ste(phba); 473 474 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 475 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 476 phba->cfg_hba_queue_depth = 477 (mb->un.varRdConfig.max_xri + 1) - 478 lpfc_sli4_get_els_iocb_cnt(phba); 479 480 phba->lmt = mb->un.varRdConfig.lmt; 481 482 /* Get the default values for Model Name and Description */ 483 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 484 485 phba->link_state = LPFC_LINK_DOWN; 486 487 /* Only process IOCBs on ELS ring till hba_state is READY */ 488 if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr) 489 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 490 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr) 491 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 492 if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr) 493 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 494 495 /* Post receive buffers for desired rings */ 496 if (phba->sli_rev != 3) 497 lpfc_post_rcv_buf(phba); 498 499 /* 500 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 501 */ 502 if (phba->intr_type == MSIX) { 503 rc = lpfc_config_msi(phba, pmb); 504 if (rc) { 505 mempool_free(pmb, phba->mbox_mem_pool); 506 return -EIO; 507 } 508 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 509 if (rc != MBX_SUCCESS) { 510 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 511 "0352 Config MSI mailbox command " 512 "failed, mbxCmd x%x, mbxStatus x%x\n", 513 pmb->u.mb.mbxCommand, 514 pmb->u.mb.mbxStatus); 515 mempool_free(pmb, phba->mbox_mem_pool); 516 return -EIO; 517 } 518 } 519 520 spin_lock_irq(&phba->hbalock); 521 /* Initialize ERATT handling flag */ 522 phba->hba_flag &= ~HBA_ERATT_HANDLED; 523 524 /* Enable appropriate host interrupts */ 525 if (lpfc_readl(phba->HCregaddr, &status)) { 526 spin_unlock_irq(&phba->hbalock); 527 return -EIO; 528 } 529 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 530 if (psli->num_rings > 0) 531 status |= HC_R0INT_ENA; 532 if (psli->num_rings > 1) 533 status |= HC_R1INT_ENA; 534 if (psli->num_rings > 2) 535 status |= HC_R2INT_ENA; 536 if (psli->num_rings > 3) 537 status |= HC_R3INT_ENA; 538 539 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 540 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 541 status &= ~(HC_R0INT_ENA); 542 543 writel(status, phba->HCregaddr); 544 readl(phba->HCregaddr); /* flush */ 545 spin_unlock_irq(&phba->hbalock); 546 547 /* Set up ring-0 (ELS) timer */ 548 timeout = phba->fc_ratov * 2; 549 mod_timer(&vport->els_tmofunc, 550 jiffies + msecs_to_jiffies(1000 * timeout)); 551 /* Set up heart beat (HB) timer */ 552 mod_timer(&phba->hb_tmofunc, 553 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 554 phba->hb_outstanding = 0; 555 phba->last_completion_time = jiffies; 556 /* Set up error attention (ERATT) polling timer */ 557 mod_timer(&phba->eratt_poll, 558 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL)); 559 560 if (phba->hba_flag & LINK_DISABLED) { 561 lpfc_printf_log(phba, 562 KERN_ERR, LOG_INIT, 563 "2598 Adapter Link is disabled.\n"); 564 lpfc_down_link(phba, pmb); 565 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 566 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 567 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 568 lpfc_printf_log(phba, 569 KERN_ERR, LOG_INIT, 570 "2599 Adapter failed to issue DOWN_LINK" 571 " mbox command rc 0x%x\n", rc); 572 573 mempool_free(pmb, phba->mbox_mem_pool); 574 return -EIO; 575 } 576 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 577 mempool_free(pmb, phba->mbox_mem_pool); 578 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 579 if (rc) 580 return rc; 581 } 582 /* MBOX buffer will be freed in mbox compl */ 583 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 584 if (!pmb) { 585 phba->link_state = LPFC_HBA_ERROR; 586 return -ENOMEM; 587 } 588 589 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 590 pmb->mbox_cmpl = lpfc_config_async_cmpl; 591 pmb->vport = phba->pport; 592 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 593 594 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 595 lpfc_printf_log(phba, 596 KERN_ERR, 597 LOG_INIT, 598 "0456 Adapter failed to issue " 599 "ASYNCEVT_ENABLE mbox status x%x\n", 600 rc); 601 mempool_free(pmb, phba->mbox_mem_pool); 602 } 603 604 /* Get Option rom version */ 605 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 606 if (!pmb) { 607 phba->link_state = LPFC_HBA_ERROR; 608 return -ENOMEM; 609 } 610 611 lpfc_dump_wakeup_param(phba, pmb); 612 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 613 pmb->vport = phba->pport; 614 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 615 616 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 617 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 618 "to get Option ROM version status x%x\n", rc); 619 mempool_free(pmb, phba->mbox_mem_pool); 620 } 621 622 return 0; 623 } 624 625 /** 626 * lpfc_hba_init_link - Initialize the FC link 627 * @phba: pointer to lpfc hba data structure. 628 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 629 * 630 * This routine will issue the INIT_LINK mailbox command call. 631 * It is available to other drivers through the lpfc_hba data 632 * structure for use as a delayed link up mechanism with the 633 * module parameter lpfc_suppress_link_up. 634 * 635 * Return code 636 * 0 - success 637 * Any other value - error 638 **/ 639 int 640 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 641 { 642 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); 643 } 644 645 /** 646 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology 647 * @phba: pointer to lpfc hba data structure. 648 * @fc_topology: desired fc topology. 649 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 650 * 651 * This routine will issue the INIT_LINK mailbox command call. 652 * It is available to other drivers through the lpfc_hba data 653 * structure for use as a delayed link up mechanism with the 654 * module parameter lpfc_suppress_link_up. 655 * 656 * Return code 657 * 0 - success 658 * Any other value - error 659 **/ 660 int 661 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, 662 uint32_t flag) 663 { 664 struct lpfc_vport *vport = phba->pport; 665 LPFC_MBOXQ_t *pmb; 666 MAILBOX_t *mb; 667 int rc; 668 669 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 670 if (!pmb) { 671 phba->link_state = LPFC_HBA_ERROR; 672 return -ENOMEM; 673 } 674 mb = &pmb->u.mb; 675 pmb->vport = vport; 676 677 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || 678 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && 679 !(phba->lmt & LMT_1Gb)) || 680 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && 681 !(phba->lmt & LMT_2Gb)) || 682 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && 683 !(phba->lmt & LMT_4Gb)) || 684 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && 685 !(phba->lmt & LMT_8Gb)) || 686 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && 687 !(phba->lmt & LMT_10Gb)) || 688 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && 689 !(phba->lmt & LMT_16Gb))) { 690 /* Reset link speed to auto */ 691 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 692 "1302 Invalid speed for this board:%d " 693 "Reset link speed to auto.\n", 694 phba->cfg_link_speed); 695 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 696 } 697 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); 698 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 699 if (phba->sli_rev < LPFC_SLI_REV4) 700 lpfc_set_loopback_flag(phba); 701 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 702 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 703 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 704 "0498 Adapter failed to init, mbxCmd x%x " 705 "INIT_LINK, mbxStatus x%x\n", 706 mb->mbxCommand, mb->mbxStatus); 707 if (phba->sli_rev <= LPFC_SLI_REV3) { 708 /* Clear all interrupt enable conditions */ 709 writel(0, phba->HCregaddr); 710 readl(phba->HCregaddr); /* flush */ 711 /* Clear all pending interrupts */ 712 writel(0xffffffff, phba->HAregaddr); 713 readl(phba->HAregaddr); /* flush */ 714 } 715 phba->link_state = LPFC_HBA_ERROR; 716 if (rc != MBX_BUSY || flag == MBX_POLL) 717 mempool_free(pmb, phba->mbox_mem_pool); 718 return -EIO; 719 } 720 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 721 if (flag == MBX_POLL) 722 mempool_free(pmb, phba->mbox_mem_pool); 723 724 return 0; 725 } 726 727 /** 728 * lpfc_hba_down_link - this routine downs the FC link 729 * @phba: pointer to lpfc hba data structure. 730 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 731 * 732 * This routine will issue the DOWN_LINK mailbox command call. 733 * It is available to other drivers through the lpfc_hba data 734 * structure for use to stop the link. 735 * 736 * Return code 737 * 0 - success 738 * Any other value - error 739 **/ 740 int 741 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 742 { 743 LPFC_MBOXQ_t *pmb; 744 int rc; 745 746 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 747 if (!pmb) { 748 phba->link_state = LPFC_HBA_ERROR; 749 return -ENOMEM; 750 } 751 752 lpfc_printf_log(phba, 753 KERN_ERR, LOG_INIT, 754 "0491 Adapter Link is disabled.\n"); 755 lpfc_down_link(phba, pmb); 756 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 757 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 758 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 759 lpfc_printf_log(phba, 760 KERN_ERR, LOG_INIT, 761 "2522 Adapter failed to issue DOWN_LINK" 762 " mbox command rc 0x%x\n", rc); 763 764 mempool_free(pmb, phba->mbox_mem_pool); 765 return -EIO; 766 } 767 if (flag == MBX_POLL) 768 mempool_free(pmb, phba->mbox_mem_pool); 769 770 return 0; 771 } 772 773 /** 774 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 775 * @phba: pointer to lpfc HBA data structure. 776 * 777 * This routine will do LPFC uninitialization before the HBA is reset when 778 * bringing down the SLI Layer. 779 * 780 * Return codes 781 * 0 - success. 782 * Any other value - error. 783 **/ 784 int 785 lpfc_hba_down_prep(struct lpfc_hba *phba) 786 { 787 struct lpfc_vport **vports; 788 int i; 789 790 if (phba->sli_rev <= LPFC_SLI_REV3) { 791 /* Disable interrupts */ 792 writel(0, phba->HCregaddr); 793 readl(phba->HCregaddr); /* flush */ 794 } 795 796 if (phba->pport->load_flag & FC_UNLOADING) 797 lpfc_cleanup_discovery_resources(phba->pport); 798 else { 799 vports = lpfc_create_vport_work_array(phba); 800 if (vports != NULL) 801 for (i = 0; i <= phba->max_vports && 802 vports[i] != NULL; i++) 803 lpfc_cleanup_discovery_resources(vports[i]); 804 lpfc_destroy_vport_work_array(phba, vports); 805 } 806 return 0; 807 } 808 809 /** 810 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 811 * @phba: pointer to lpfc HBA data structure. 812 * 813 * This routine will do uninitialization after the HBA is reset when bring 814 * down the SLI Layer. 815 * 816 * Return codes 817 * 0 - success. 818 * Any other value - error. 819 **/ 820 static int 821 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 822 { 823 struct lpfc_sli *psli = &phba->sli; 824 struct lpfc_sli_ring *pring; 825 struct lpfc_dmabuf *mp, *next_mp; 826 LIST_HEAD(completions); 827 int i; 828 829 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 830 lpfc_sli_hbqbuf_free_all(phba); 831 else { 832 /* Cleanup preposted buffers on the ELS ring */ 833 pring = &psli->ring[LPFC_ELS_RING]; 834 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 835 list_del(&mp->list); 836 pring->postbufq_cnt--; 837 lpfc_mbuf_free(phba, mp->virt, mp->phys); 838 kfree(mp); 839 } 840 } 841 842 spin_lock_irq(&phba->hbalock); 843 for (i = 0; i < psli->num_rings; i++) { 844 pring = &psli->ring[i]; 845 846 /* At this point in time the HBA is either reset or DOA. Either 847 * way, nothing should be on txcmplq as it will NEVER complete. 848 */ 849 list_splice_init(&pring->txcmplq, &completions); 850 spin_unlock_irq(&phba->hbalock); 851 852 /* Cancel all the IOCBs from the completions list */ 853 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 854 IOERR_SLI_ABORTED); 855 856 lpfc_sli_abort_iocb_ring(phba, pring); 857 spin_lock_irq(&phba->hbalock); 858 } 859 spin_unlock_irq(&phba->hbalock); 860 861 return 0; 862 } 863 864 /** 865 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 866 * @phba: pointer to lpfc HBA data structure. 867 * 868 * This routine will do uninitialization after the HBA is reset when bring 869 * down the SLI Layer. 870 * 871 * Return codes 872 * 0 - success. 873 * Any other value - error. 874 **/ 875 static int 876 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 877 { 878 struct lpfc_scsi_buf *psb, *psb_next; 879 LIST_HEAD(aborts); 880 int ret; 881 unsigned long iflag = 0; 882 struct lpfc_sglq *sglq_entry = NULL; 883 884 ret = lpfc_hba_down_post_s3(phba); 885 if (ret) 886 return ret; 887 /* At this point in time the HBA is either reset or DOA. Either 888 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 889 * on the lpfc_sgl_list so that it can either be freed if the 890 * driver is unloading or reposted if the driver is restarting 891 * the port. 892 */ 893 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 894 /* scsl_buf_list */ 895 /* abts_sgl_list_lock required because worker thread uses this 896 * list. 897 */ 898 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 899 list_for_each_entry(sglq_entry, 900 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 901 sglq_entry->state = SGL_FREED; 902 903 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 904 &phba->sli4_hba.lpfc_sgl_list); 905 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 906 /* abts_scsi_buf_list_lock required because worker thread uses this 907 * list. 908 */ 909 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 910 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 911 &aborts); 912 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 913 spin_unlock_irq(&phba->hbalock); 914 915 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 916 psb->pCmd = NULL; 917 psb->status = IOSTAT_SUCCESS; 918 } 919 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); 920 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put); 921 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); 922 return 0; 923 } 924 925 /** 926 * lpfc_hba_down_post - Wrapper func for hba down post routine 927 * @phba: pointer to lpfc HBA data structure. 928 * 929 * This routine wraps the actual SLI3 or SLI4 routine for performing 930 * uninitialization after the HBA is reset when bring down the SLI Layer. 931 * 932 * Return codes 933 * 0 - success. 934 * Any other value - error. 935 **/ 936 int 937 lpfc_hba_down_post(struct lpfc_hba *phba) 938 { 939 return (*phba->lpfc_hba_down_post)(phba); 940 } 941 942 /** 943 * lpfc_hb_timeout - The HBA-timer timeout handler 944 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 945 * 946 * This is the HBA-timer timeout handler registered to the lpfc driver. When 947 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 948 * work-port-events bitmap and the worker thread is notified. This timeout 949 * event will be used by the worker thread to invoke the actual timeout 950 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 951 * be performed in the timeout handler and the HBA timeout event bit shall 952 * be cleared by the worker thread after it has taken the event bitmap out. 953 **/ 954 static void 955 lpfc_hb_timeout(unsigned long ptr) 956 { 957 struct lpfc_hba *phba; 958 uint32_t tmo_posted; 959 unsigned long iflag; 960 961 phba = (struct lpfc_hba *)ptr; 962 963 /* Check for heart beat timeout conditions */ 964 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 965 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 966 if (!tmo_posted) 967 phba->pport->work_port_events |= WORKER_HB_TMO; 968 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 969 970 /* Tell the worker thread there is work to do */ 971 if (!tmo_posted) 972 lpfc_worker_wake_up(phba); 973 return; 974 } 975 976 /** 977 * lpfc_rrq_timeout - The RRQ-timer timeout handler 978 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 979 * 980 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 981 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 982 * work-port-events bitmap and the worker thread is notified. This timeout 983 * event will be used by the worker thread to invoke the actual timeout 984 * handler routine, lpfc_rrq_handler. Any periodical operations will 985 * be performed in the timeout handler and the RRQ timeout event bit shall 986 * be cleared by the worker thread after it has taken the event bitmap out. 987 **/ 988 static void 989 lpfc_rrq_timeout(unsigned long ptr) 990 { 991 struct lpfc_hba *phba; 992 unsigned long iflag; 993 994 phba = (struct lpfc_hba *)ptr; 995 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 996 phba->hba_flag |= HBA_RRQ_ACTIVE; 997 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 998 lpfc_worker_wake_up(phba); 999 } 1000 1001 /** 1002 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 1003 * @phba: pointer to lpfc hba data structure. 1004 * @pmboxq: pointer to the driver internal queue element for mailbox command. 1005 * 1006 * This is the callback function to the lpfc heart-beat mailbox command. 1007 * If configured, the lpfc driver issues the heart-beat mailbox command to 1008 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 1009 * heart-beat mailbox command is issued, the driver shall set up heart-beat 1010 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 1011 * heart-beat outstanding state. Once the mailbox command comes back and 1012 * no error conditions detected, the heart-beat mailbox command timer is 1013 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1014 * state is cleared for the next heart-beat. If the timer expired with the 1015 * heart-beat outstanding state set, the driver will put the HBA offline. 1016 **/ 1017 static void 1018 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1019 { 1020 unsigned long drvr_flag; 1021 1022 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1023 phba->hb_outstanding = 0; 1024 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1025 1026 /* Check and reset heart-beat timer is necessary */ 1027 mempool_free(pmboxq, phba->mbox_mem_pool); 1028 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1029 !(phba->link_state == LPFC_HBA_ERROR) && 1030 !(phba->pport->load_flag & FC_UNLOADING)) 1031 mod_timer(&phba->hb_tmofunc, 1032 jiffies + 1033 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1034 return; 1035 } 1036 1037 /** 1038 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1039 * @phba: pointer to lpfc hba data structure. 1040 * 1041 * This is the actual HBA-timer timeout handler to be invoked by the worker 1042 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1043 * handler performs any periodic operations needed for the device. If such 1044 * periodic event has already been attended to either in the interrupt handler 1045 * or by processing slow-ring or fast-ring events within the HBA-timer 1046 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1047 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1048 * is configured and there is no heart-beat mailbox command outstanding, a 1049 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1050 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1051 * to offline. 1052 **/ 1053 void 1054 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1055 { 1056 struct lpfc_vport **vports; 1057 LPFC_MBOXQ_t *pmboxq; 1058 struct lpfc_dmabuf *buf_ptr; 1059 int retval, i; 1060 struct lpfc_sli *psli = &phba->sli; 1061 LIST_HEAD(completions); 1062 1063 vports = lpfc_create_vport_work_array(phba); 1064 if (vports != NULL) 1065 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1066 lpfc_rcv_seq_check_edtov(vports[i]); 1067 lpfc_destroy_vport_work_array(phba, vports); 1068 1069 if ((phba->link_state == LPFC_HBA_ERROR) || 1070 (phba->pport->load_flag & FC_UNLOADING) || 1071 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1072 return; 1073 1074 spin_lock_irq(&phba->pport->work_port_lock); 1075 1076 if (time_after(phba->last_completion_time + 1077 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL), 1078 jiffies)) { 1079 spin_unlock_irq(&phba->pport->work_port_lock); 1080 if (!phba->hb_outstanding) 1081 mod_timer(&phba->hb_tmofunc, 1082 jiffies + 1083 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1084 else 1085 mod_timer(&phba->hb_tmofunc, 1086 jiffies + 1087 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1088 return; 1089 } 1090 spin_unlock_irq(&phba->pport->work_port_lock); 1091 1092 if (phba->elsbuf_cnt && 1093 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1094 spin_lock_irq(&phba->hbalock); 1095 list_splice_init(&phba->elsbuf, &completions); 1096 phba->elsbuf_cnt = 0; 1097 phba->elsbuf_prev_cnt = 0; 1098 spin_unlock_irq(&phba->hbalock); 1099 1100 while (!list_empty(&completions)) { 1101 list_remove_head(&completions, buf_ptr, 1102 struct lpfc_dmabuf, list); 1103 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1104 kfree(buf_ptr); 1105 } 1106 } 1107 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1108 1109 /* If there is no heart beat outstanding, issue a heartbeat command */ 1110 if (phba->cfg_enable_hba_heartbeat) { 1111 if (!phba->hb_outstanding) { 1112 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1113 (list_empty(&psli->mboxq))) { 1114 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1115 GFP_KERNEL); 1116 if (!pmboxq) { 1117 mod_timer(&phba->hb_tmofunc, 1118 jiffies + 1119 msecs_to_jiffies(1000 * 1120 LPFC_HB_MBOX_INTERVAL)); 1121 return; 1122 } 1123 1124 lpfc_heart_beat(phba, pmboxq); 1125 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1126 pmboxq->vport = phba->pport; 1127 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1128 MBX_NOWAIT); 1129 1130 if (retval != MBX_BUSY && 1131 retval != MBX_SUCCESS) { 1132 mempool_free(pmboxq, 1133 phba->mbox_mem_pool); 1134 mod_timer(&phba->hb_tmofunc, 1135 jiffies + 1136 msecs_to_jiffies(1000 * 1137 LPFC_HB_MBOX_INTERVAL)); 1138 return; 1139 } 1140 phba->skipped_hb = 0; 1141 phba->hb_outstanding = 1; 1142 } else if (time_before_eq(phba->last_completion_time, 1143 phba->skipped_hb)) { 1144 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1145 "2857 Last completion time not " 1146 " updated in %d ms\n", 1147 jiffies_to_msecs(jiffies 1148 - phba->last_completion_time)); 1149 } else 1150 phba->skipped_hb = jiffies; 1151 1152 mod_timer(&phba->hb_tmofunc, 1153 jiffies + 1154 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1155 return; 1156 } else { 1157 /* 1158 * If heart beat timeout called with hb_outstanding set 1159 * we need to give the hb mailbox cmd a chance to 1160 * complete or TMO. 1161 */ 1162 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1163 "0459 Adapter heartbeat still out" 1164 "standing:last compl time was %d ms.\n", 1165 jiffies_to_msecs(jiffies 1166 - phba->last_completion_time)); 1167 mod_timer(&phba->hb_tmofunc, 1168 jiffies + 1169 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1170 } 1171 } 1172 } 1173 1174 /** 1175 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1176 * @phba: pointer to lpfc hba data structure. 1177 * 1178 * This routine is called to bring the HBA offline when HBA hardware error 1179 * other than Port Error 6 has been detected. 1180 **/ 1181 static void 1182 lpfc_offline_eratt(struct lpfc_hba *phba) 1183 { 1184 struct lpfc_sli *psli = &phba->sli; 1185 1186 spin_lock_irq(&phba->hbalock); 1187 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1188 spin_unlock_irq(&phba->hbalock); 1189 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1190 1191 lpfc_offline(phba); 1192 lpfc_reset_barrier(phba); 1193 spin_lock_irq(&phba->hbalock); 1194 lpfc_sli_brdreset(phba); 1195 spin_unlock_irq(&phba->hbalock); 1196 lpfc_hba_down_post(phba); 1197 lpfc_sli_brdready(phba, HS_MBRDY); 1198 lpfc_unblock_mgmt_io(phba); 1199 phba->link_state = LPFC_HBA_ERROR; 1200 return; 1201 } 1202 1203 /** 1204 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1205 * @phba: pointer to lpfc hba data structure. 1206 * 1207 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1208 * other than Port Error 6 has been detected. 1209 **/ 1210 void 1211 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1212 { 1213 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1214 lpfc_offline(phba); 1215 lpfc_sli4_brdreset(phba); 1216 lpfc_hba_down_post(phba); 1217 lpfc_sli4_post_status_check(phba); 1218 lpfc_unblock_mgmt_io(phba); 1219 phba->link_state = LPFC_HBA_ERROR; 1220 } 1221 1222 /** 1223 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1224 * @phba: pointer to lpfc hba data structure. 1225 * 1226 * This routine is invoked to handle the deferred HBA hardware error 1227 * conditions. This type of error is indicated by HBA by setting ER1 1228 * and another ER bit in the host status register. The driver will 1229 * wait until the ER1 bit clears before handling the error condition. 1230 **/ 1231 static void 1232 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1233 { 1234 uint32_t old_host_status = phba->work_hs; 1235 struct lpfc_sli_ring *pring; 1236 struct lpfc_sli *psli = &phba->sli; 1237 1238 /* If the pci channel is offline, ignore possible errors, 1239 * since we cannot communicate with the pci card anyway. 1240 */ 1241 if (pci_channel_offline(phba->pcidev)) { 1242 spin_lock_irq(&phba->hbalock); 1243 phba->hba_flag &= ~DEFER_ERATT; 1244 spin_unlock_irq(&phba->hbalock); 1245 return; 1246 } 1247 1248 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1249 "0479 Deferred Adapter Hardware Error " 1250 "Data: x%x x%x x%x\n", 1251 phba->work_hs, 1252 phba->work_status[0], phba->work_status[1]); 1253 1254 spin_lock_irq(&phba->hbalock); 1255 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1256 spin_unlock_irq(&phba->hbalock); 1257 1258 1259 /* 1260 * Firmware stops when it triggred erratt. That could cause the I/Os 1261 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1262 * SCSI layer retry it after re-establishing link. 1263 */ 1264 pring = &psli->ring[psli->fcp_ring]; 1265 lpfc_sli_abort_iocb_ring(phba, pring); 1266 1267 /* 1268 * There was a firmware error. Take the hba offline and then 1269 * attempt to restart it. 1270 */ 1271 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 1272 lpfc_offline(phba); 1273 1274 /* Wait for the ER1 bit to clear.*/ 1275 while (phba->work_hs & HS_FFER1) { 1276 msleep(100); 1277 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1278 phba->work_hs = UNPLUG_ERR ; 1279 break; 1280 } 1281 /* If driver is unloading let the worker thread continue */ 1282 if (phba->pport->load_flag & FC_UNLOADING) { 1283 phba->work_hs = 0; 1284 break; 1285 } 1286 } 1287 1288 /* 1289 * This is to ptrotect against a race condition in which 1290 * first write to the host attention register clear the 1291 * host status register. 1292 */ 1293 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1294 phba->work_hs = old_host_status & ~HS_FFER1; 1295 1296 spin_lock_irq(&phba->hbalock); 1297 phba->hba_flag &= ~DEFER_ERATT; 1298 spin_unlock_irq(&phba->hbalock); 1299 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1300 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1301 } 1302 1303 static void 1304 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1305 { 1306 struct lpfc_board_event_header board_event; 1307 struct Scsi_Host *shost; 1308 1309 board_event.event_type = FC_REG_BOARD_EVENT; 1310 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1311 shost = lpfc_shost_from_vport(phba->pport); 1312 fc_host_post_vendor_event(shost, fc_get_event_number(), 1313 sizeof(board_event), 1314 (char *) &board_event, 1315 LPFC_NL_VENDOR_ID); 1316 } 1317 1318 /** 1319 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1320 * @phba: pointer to lpfc hba data structure. 1321 * 1322 * This routine is invoked to handle the following HBA hardware error 1323 * conditions: 1324 * 1 - HBA error attention interrupt 1325 * 2 - DMA ring index out of range 1326 * 3 - Mailbox command came back as unknown 1327 **/ 1328 static void 1329 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1330 { 1331 struct lpfc_vport *vport = phba->pport; 1332 struct lpfc_sli *psli = &phba->sli; 1333 struct lpfc_sli_ring *pring; 1334 uint32_t event_data; 1335 unsigned long temperature; 1336 struct temp_event temp_event_data; 1337 struct Scsi_Host *shost; 1338 1339 /* If the pci channel is offline, ignore possible errors, 1340 * since we cannot communicate with the pci card anyway. 1341 */ 1342 if (pci_channel_offline(phba->pcidev)) { 1343 spin_lock_irq(&phba->hbalock); 1344 phba->hba_flag &= ~DEFER_ERATT; 1345 spin_unlock_irq(&phba->hbalock); 1346 return; 1347 } 1348 1349 /* If resets are disabled then leave the HBA alone and return */ 1350 if (!phba->cfg_enable_hba_reset) 1351 return; 1352 1353 /* Send an internal error event to mgmt application */ 1354 lpfc_board_errevt_to_mgmt(phba); 1355 1356 if (phba->hba_flag & DEFER_ERATT) 1357 lpfc_handle_deferred_eratt(phba); 1358 1359 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1360 if (phba->work_hs & HS_FFER6) 1361 /* Re-establishing Link */ 1362 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1363 "1301 Re-establishing Link " 1364 "Data: x%x x%x x%x\n", 1365 phba->work_hs, phba->work_status[0], 1366 phba->work_status[1]); 1367 if (phba->work_hs & HS_FFER8) 1368 /* Device Zeroization */ 1369 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1370 "2861 Host Authentication device " 1371 "zeroization Data:x%x x%x x%x\n", 1372 phba->work_hs, phba->work_status[0], 1373 phba->work_status[1]); 1374 1375 spin_lock_irq(&phba->hbalock); 1376 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1377 spin_unlock_irq(&phba->hbalock); 1378 1379 /* 1380 * Firmware stops when it triggled erratt with HS_FFER6. 1381 * That could cause the I/Os dropped by the firmware. 1382 * Error iocb (I/O) on txcmplq and let the SCSI layer 1383 * retry it after re-establishing link. 1384 */ 1385 pring = &psli->ring[psli->fcp_ring]; 1386 lpfc_sli_abort_iocb_ring(phba, pring); 1387 1388 /* 1389 * There was a firmware error. Take the hba offline and then 1390 * attempt to restart it. 1391 */ 1392 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1393 lpfc_offline(phba); 1394 lpfc_sli_brdrestart(phba); 1395 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1396 lpfc_unblock_mgmt_io(phba); 1397 return; 1398 } 1399 lpfc_unblock_mgmt_io(phba); 1400 } else if (phba->work_hs & HS_CRIT_TEMP) { 1401 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1402 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1403 temp_event_data.event_code = LPFC_CRIT_TEMP; 1404 temp_event_data.data = (uint32_t)temperature; 1405 1406 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1407 "0406 Adapter maximum temperature exceeded " 1408 "(%ld), taking this port offline " 1409 "Data: x%x x%x x%x\n", 1410 temperature, phba->work_hs, 1411 phba->work_status[0], phba->work_status[1]); 1412 1413 shost = lpfc_shost_from_vport(phba->pport); 1414 fc_host_post_vendor_event(shost, fc_get_event_number(), 1415 sizeof(temp_event_data), 1416 (char *) &temp_event_data, 1417 SCSI_NL_VID_TYPE_PCI 1418 | PCI_VENDOR_ID_EMULEX); 1419 1420 spin_lock_irq(&phba->hbalock); 1421 phba->over_temp_state = HBA_OVER_TEMP; 1422 spin_unlock_irq(&phba->hbalock); 1423 lpfc_offline_eratt(phba); 1424 1425 } else { 1426 /* The if clause above forces this code path when the status 1427 * failure is a value other than FFER6. Do not call the offline 1428 * twice. This is the adapter hardware error path. 1429 */ 1430 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1431 "0457 Adapter Hardware Error " 1432 "Data: x%x x%x x%x\n", 1433 phba->work_hs, 1434 phba->work_status[0], phba->work_status[1]); 1435 1436 event_data = FC_REG_DUMP_EVENT; 1437 shost = lpfc_shost_from_vport(vport); 1438 fc_host_post_vendor_event(shost, fc_get_event_number(), 1439 sizeof(event_data), (char *) &event_data, 1440 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1441 1442 lpfc_offline_eratt(phba); 1443 } 1444 return; 1445 } 1446 1447 /** 1448 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg 1449 * @phba: pointer to lpfc hba data structure. 1450 * @mbx_action: flag for mailbox shutdown action. 1451 * 1452 * This routine is invoked to perform an SLI4 port PCI function reset in 1453 * response to port status register polling attention. It waits for port 1454 * status register (ERR, RDY, RN) bits before proceeding with function reset. 1455 * During this process, interrupt vectors are freed and later requested 1456 * for handling possible port resource change. 1457 **/ 1458 static int 1459 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action) 1460 { 1461 int rc; 1462 uint32_t intr_mode; 1463 1464 /* 1465 * On error status condition, driver need to wait for port 1466 * ready before performing reset. 1467 */ 1468 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1469 if (!rc) { 1470 /* need reset: attempt for port recovery */ 1471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1472 "2887 Reset Needed: Attempting Port " 1473 "Recovery...\n"); 1474 lpfc_offline_prep(phba, mbx_action); 1475 lpfc_offline(phba); 1476 /* release interrupt for possible resource change */ 1477 lpfc_sli4_disable_intr(phba); 1478 lpfc_sli_brdrestart(phba); 1479 /* request and enable interrupt */ 1480 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 1481 if (intr_mode == LPFC_INTR_ERROR) { 1482 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1483 "3175 Failed to enable interrupt\n"); 1484 return -EIO; 1485 } else { 1486 phba->intr_mode = intr_mode; 1487 } 1488 rc = lpfc_online(phba); 1489 if (rc == 0) 1490 lpfc_unblock_mgmt_io(phba); 1491 } 1492 return rc; 1493 } 1494 1495 /** 1496 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1497 * @phba: pointer to lpfc hba data structure. 1498 * 1499 * This routine is invoked to handle the SLI4 HBA hardware error attention 1500 * conditions. 1501 **/ 1502 static void 1503 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1504 { 1505 struct lpfc_vport *vport = phba->pport; 1506 uint32_t event_data; 1507 struct Scsi_Host *shost; 1508 uint32_t if_type; 1509 struct lpfc_register portstat_reg = {0}; 1510 uint32_t reg_err1, reg_err2; 1511 uint32_t uerrlo_reg, uemasklo_reg; 1512 uint32_t pci_rd_rc1, pci_rd_rc2; 1513 int rc; 1514 1515 /* If the pci channel is offline, ignore possible errors, since 1516 * we cannot communicate with the pci card anyway. 1517 */ 1518 if (pci_channel_offline(phba->pcidev)) 1519 return; 1520 /* If resets are disabled then leave the HBA alone and return */ 1521 if (!phba->cfg_enable_hba_reset) 1522 return; 1523 1524 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1525 switch (if_type) { 1526 case LPFC_SLI_INTF_IF_TYPE_0: 1527 pci_rd_rc1 = lpfc_readl( 1528 phba->sli4_hba.u.if_type0.UERRLOregaddr, 1529 &uerrlo_reg); 1530 pci_rd_rc2 = lpfc_readl( 1531 phba->sli4_hba.u.if_type0.UEMASKLOregaddr, 1532 &uemasklo_reg); 1533 /* consider PCI bus read error as pci_channel_offline */ 1534 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) 1535 return; 1536 lpfc_sli4_offline_eratt(phba); 1537 break; 1538 case LPFC_SLI_INTF_IF_TYPE_2: 1539 pci_rd_rc1 = lpfc_readl( 1540 phba->sli4_hba.u.if_type2.STATUSregaddr, 1541 &portstat_reg.word0); 1542 /* consider PCI bus read error as pci_channel_offline */ 1543 if (pci_rd_rc1 == -EIO) { 1544 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1545 "3151 PCI bus read access failure: x%x\n", 1546 readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); 1547 return; 1548 } 1549 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); 1550 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); 1551 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1552 /* TODO: Register for Overtemp async events. */ 1553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1554 "2889 Port Overtemperature event, " 1555 "taking port offline\n"); 1556 spin_lock_irq(&phba->hbalock); 1557 phba->over_temp_state = HBA_OVER_TEMP; 1558 spin_unlock_irq(&phba->hbalock); 1559 lpfc_sli4_offline_eratt(phba); 1560 break; 1561 } 1562 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1563 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) 1564 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1565 "3143 Port Down: Firmware Restarted\n"); 1566 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1567 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1568 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1569 "3144 Port Down: Debug Dump\n"); 1570 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1571 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) 1572 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1573 "3145 Port Down: Provisioning\n"); 1574 1575 /* Check port status register for function reset */ 1576 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT); 1577 if (rc == 0) { 1578 /* don't report event on forced debug dump */ 1579 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1580 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1581 return; 1582 else 1583 break; 1584 } 1585 /* fall through for not able to recover */ 1586 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1587 "3152 Unrecoverable error, bring the port " 1588 "offline\n"); 1589 lpfc_sli4_offline_eratt(phba); 1590 break; 1591 case LPFC_SLI_INTF_IF_TYPE_1: 1592 default: 1593 break; 1594 } 1595 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1596 "3123 Report dump event to upper layer\n"); 1597 /* Send an internal error event to mgmt application */ 1598 lpfc_board_errevt_to_mgmt(phba); 1599 1600 event_data = FC_REG_DUMP_EVENT; 1601 shost = lpfc_shost_from_vport(vport); 1602 fc_host_post_vendor_event(shost, fc_get_event_number(), 1603 sizeof(event_data), (char *) &event_data, 1604 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1605 } 1606 1607 /** 1608 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1609 * @phba: pointer to lpfc HBA data structure. 1610 * 1611 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1612 * routine from the API jump table function pointer from the lpfc_hba struct. 1613 * 1614 * Return codes 1615 * 0 - success. 1616 * Any other value - error. 1617 **/ 1618 void 1619 lpfc_handle_eratt(struct lpfc_hba *phba) 1620 { 1621 (*phba->lpfc_handle_eratt)(phba); 1622 } 1623 1624 /** 1625 * lpfc_handle_latt - The HBA link event handler 1626 * @phba: pointer to lpfc hba data structure. 1627 * 1628 * This routine is invoked from the worker thread to handle a HBA host 1629 * attention link event. 1630 **/ 1631 void 1632 lpfc_handle_latt(struct lpfc_hba *phba) 1633 { 1634 struct lpfc_vport *vport = phba->pport; 1635 struct lpfc_sli *psli = &phba->sli; 1636 LPFC_MBOXQ_t *pmb; 1637 volatile uint32_t control; 1638 struct lpfc_dmabuf *mp; 1639 int rc = 0; 1640 1641 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1642 if (!pmb) { 1643 rc = 1; 1644 goto lpfc_handle_latt_err_exit; 1645 } 1646 1647 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1648 if (!mp) { 1649 rc = 2; 1650 goto lpfc_handle_latt_free_pmb; 1651 } 1652 1653 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1654 if (!mp->virt) { 1655 rc = 3; 1656 goto lpfc_handle_latt_free_mp; 1657 } 1658 1659 /* Cleanup any outstanding ELS commands */ 1660 lpfc_els_flush_all_cmd(phba); 1661 1662 psli->slistat.link_event++; 1663 lpfc_read_topology(phba, pmb, mp); 1664 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1665 pmb->vport = vport; 1666 /* Block ELS IOCBs until we have processed this mbox command */ 1667 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1668 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1669 if (rc == MBX_NOT_FINISHED) { 1670 rc = 4; 1671 goto lpfc_handle_latt_free_mbuf; 1672 } 1673 1674 /* Clear Link Attention in HA REG */ 1675 spin_lock_irq(&phba->hbalock); 1676 writel(HA_LATT, phba->HAregaddr); 1677 readl(phba->HAregaddr); /* flush */ 1678 spin_unlock_irq(&phba->hbalock); 1679 1680 return; 1681 1682 lpfc_handle_latt_free_mbuf: 1683 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1684 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1685 lpfc_handle_latt_free_mp: 1686 kfree(mp); 1687 lpfc_handle_latt_free_pmb: 1688 mempool_free(pmb, phba->mbox_mem_pool); 1689 lpfc_handle_latt_err_exit: 1690 /* Enable Link attention interrupts */ 1691 spin_lock_irq(&phba->hbalock); 1692 psli->sli_flag |= LPFC_PROCESS_LA; 1693 control = readl(phba->HCregaddr); 1694 control |= HC_LAINT_ENA; 1695 writel(control, phba->HCregaddr); 1696 readl(phba->HCregaddr); /* flush */ 1697 1698 /* Clear Link Attention in HA REG */ 1699 writel(HA_LATT, phba->HAregaddr); 1700 readl(phba->HAregaddr); /* flush */ 1701 spin_unlock_irq(&phba->hbalock); 1702 lpfc_linkdown(phba); 1703 phba->link_state = LPFC_HBA_ERROR; 1704 1705 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1706 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1707 1708 return; 1709 } 1710 1711 /** 1712 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1713 * @phba: pointer to lpfc hba data structure. 1714 * @vpd: pointer to the vital product data. 1715 * @len: length of the vital product data in bytes. 1716 * 1717 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1718 * an array of characters. In this routine, the ModelName, ProgramType, and 1719 * ModelDesc, etc. fields of the phba data structure will be populated. 1720 * 1721 * Return codes 1722 * 0 - pointer to the VPD passed in is NULL 1723 * 1 - success 1724 **/ 1725 int 1726 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1727 { 1728 uint8_t lenlo, lenhi; 1729 int Length; 1730 int i, j; 1731 int finished = 0; 1732 int index = 0; 1733 1734 if (!vpd) 1735 return 0; 1736 1737 /* Vital Product */ 1738 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1739 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1740 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1741 (uint32_t) vpd[3]); 1742 while (!finished && (index < (len - 4))) { 1743 switch (vpd[index]) { 1744 case 0x82: 1745 case 0x91: 1746 index += 1; 1747 lenlo = vpd[index]; 1748 index += 1; 1749 lenhi = vpd[index]; 1750 index += 1; 1751 i = ((((unsigned short)lenhi) << 8) + lenlo); 1752 index += i; 1753 break; 1754 case 0x90: 1755 index += 1; 1756 lenlo = vpd[index]; 1757 index += 1; 1758 lenhi = vpd[index]; 1759 index += 1; 1760 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1761 if (Length > len - index) 1762 Length = len - index; 1763 while (Length > 0) { 1764 /* Look for Serial Number */ 1765 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1766 index += 2; 1767 i = vpd[index]; 1768 index += 1; 1769 j = 0; 1770 Length -= (3+i); 1771 while(i--) { 1772 phba->SerialNumber[j++] = vpd[index++]; 1773 if (j == 31) 1774 break; 1775 } 1776 phba->SerialNumber[j] = 0; 1777 continue; 1778 } 1779 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1780 phba->vpd_flag |= VPD_MODEL_DESC; 1781 index += 2; 1782 i = vpd[index]; 1783 index += 1; 1784 j = 0; 1785 Length -= (3+i); 1786 while(i--) { 1787 phba->ModelDesc[j++] = vpd[index++]; 1788 if (j == 255) 1789 break; 1790 } 1791 phba->ModelDesc[j] = 0; 1792 continue; 1793 } 1794 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1795 phba->vpd_flag |= VPD_MODEL_NAME; 1796 index += 2; 1797 i = vpd[index]; 1798 index += 1; 1799 j = 0; 1800 Length -= (3+i); 1801 while(i--) { 1802 phba->ModelName[j++] = vpd[index++]; 1803 if (j == 79) 1804 break; 1805 } 1806 phba->ModelName[j] = 0; 1807 continue; 1808 } 1809 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1810 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1811 index += 2; 1812 i = vpd[index]; 1813 index += 1; 1814 j = 0; 1815 Length -= (3+i); 1816 while(i--) { 1817 phba->ProgramType[j++] = vpd[index++]; 1818 if (j == 255) 1819 break; 1820 } 1821 phba->ProgramType[j] = 0; 1822 continue; 1823 } 1824 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1825 phba->vpd_flag |= VPD_PORT; 1826 index += 2; 1827 i = vpd[index]; 1828 index += 1; 1829 j = 0; 1830 Length -= (3+i); 1831 while(i--) { 1832 if ((phba->sli_rev == LPFC_SLI_REV4) && 1833 (phba->sli4_hba.pport_name_sta == 1834 LPFC_SLI4_PPNAME_GET)) { 1835 j++; 1836 index++; 1837 } else 1838 phba->Port[j++] = vpd[index++]; 1839 if (j == 19) 1840 break; 1841 } 1842 if ((phba->sli_rev != LPFC_SLI_REV4) || 1843 (phba->sli4_hba.pport_name_sta == 1844 LPFC_SLI4_PPNAME_NON)) 1845 phba->Port[j] = 0; 1846 continue; 1847 } 1848 else { 1849 index += 2; 1850 i = vpd[index]; 1851 index += 1; 1852 index += i; 1853 Length -= (3 + i); 1854 } 1855 } 1856 finished = 0; 1857 break; 1858 case 0x78: 1859 finished = 1; 1860 break; 1861 default: 1862 index ++; 1863 break; 1864 } 1865 } 1866 1867 return(1); 1868 } 1869 1870 /** 1871 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1872 * @phba: pointer to lpfc hba data structure. 1873 * @mdp: pointer to the data structure to hold the derived model name. 1874 * @descp: pointer to the data structure to hold the derived description. 1875 * 1876 * This routine retrieves HBA's description based on its registered PCI device 1877 * ID. The @descp passed into this function points to an array of 256 chars. It 1878 * shall be returned with the model name, maximum speed, and the host bus type. 1879 * The @mdp passed into this function points to an array of 80 chars. When the 1880 * function returns, the @mdp will be filled with the model name. 1881 **/ 1882 static void 1883 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1884 { 1885 lpfc_vpd_t *vp; 1886 uint16_t dev_id = phba->pcidev->device; 1887 int max_speed; 1888 int GE = 0; 1889 int oneConnect = 0; /* default is not a oneConnect */ 1890 struct { 1891 char *name; 1892 char *bus; 1893 char *function; 1894 } m = {"<Unknown>", "", ""}; 1895 1896 if (mdp && mdp[0] != '\0' 1897 && descp && descp[0] != '\0') 1898 return; 1899 1900 if (phba->lmt & LMT_16Gb) 1901 max_speed = 16; 1902 else if (phba->lmt & LMT_10Gb) 1903 max_speed = 10; 1904 else if (phba->lmt & LMT_8Gb) 1905 max_speed = 8; 1906 else if (phba->lmt & LMT_4Gb) 1907 max_speed = 4; 1908 else if (phba->lmt & LMT_2Gb) 1909 max_speed = 2; 1910 else if (phba->lmt & LMT_1Gb) 1911 max_speed = 1; 1912 else 1913 max_speed = 0; 1914 1915 vp = &phba->vpd; 1916 1917 switch (dev_id) { 1918 case PCI_DEVICE_ID_FIREFLY: 1919 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1920 break; 1921 case PCI_DEVICE_ID_SUPERFLY: 1922 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1923 m = (typeof(m)){"LP7000", "PCI", 1924 "Fibre Channel Adapter"}; 1925 else 1926 m = (typeof(m)){"LP7000E", "PCI", 1927 "Fibre Channel Adapter"}; 1928 break; 1929 case PCI_DEVICE_ID_DRAGONFLY: 1930 m = (typeof(m)){"LP8000", "PCI", 1931 "Fibre Channel Adapter"}; 1932 break; 1933 case PCI_DEVICE_ID_CENTAUR: 1934 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1935 m = (typeof(m)){"LP9002", "PCI", 1936 "Fibre Channel Adapter"}; 1937 else 1938 m = (typeof(m)){"LP9000", "PCI", 1939 "Fibre Channel Adapter"}; 1940 break; 1941 case PCI_DEVICE_ID_RFLY: 1942 m = (typeof(m)){"LP952", "PCI", 1943 "Fibre Channel Adapter"}; 1944 break; 1945 case PCI_DEVICE_ID_PEGASUS: 1946 m = (typeof(m)){"LP9802", "PCI-X", 1947 "Fibre Channel Adapter"}; 1948 break; 1949 case PCI_DEVICE_ID_THOR: 1950 m = (typeof(m)){"LP10000", "PCI-X", 1951 "Fibre Channel Adapter"}; 1952 break; 1953 case PCI_DEVICE_ID_VIPER: 1954 m = (typeof(m)){"LPX1000", "PCI-X", 1955 "Fibre Channel Adapter"}; 1956 break; 1957 case PCI_DEVICE_ID_PFLY: 1958 m = (typeof(m)){"LP982", "PCI-X", 1959 "Fibre Channel Adapter"}; 1960 break; 1961 case PCI_DEVICE_ID_TFLY: 1962 m = (typeof(m)){"LP1050", "PCI-X", 1963 "Fibre Channel Adapter"}; 1964 break; 1965 case PCI_DEVICE_ID_HELIOS: 1966 m = (typeof(m)){"LP11000", "PCI-X2", 1967 "Fibre Channel Adapter"}; 1968 break; 1969 case PCI_DEVICE_ID_HELIOS_SCSP: 1970 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1971 "Fibre Channel Adapter"}; 1972 break; 1973 case PCI_DEVICE_ID_HELIOS_DCSP: 1974 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1975 "Fibre Channel Adapter"}; 1976 break; 1977 case PCI_DEVICE_ID_NEPTUNE: 1978 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1979 break; 1980 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1981 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1982 break; 1983 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1984 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1985 break; 1986 case PCI_DEVICE_ID_BMID: 1987 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1988 break; 1989 case PCI_DEVICE_ID_BSMB: 1990 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1991 break; 1992 case PCI_DEVICE_ID_ZEPHYR: 1993 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1994 break; 1995 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1996 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1997 break; 1998 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1999 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 2000 GE = 1; 2001 break; 2002 case PCI_DEVICE_ID_ZMID: 2003 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 2004 break; 2005 case PCI_DEVICE_ID_ZSMB: 2006 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 2007 break; 2008 case PCI_DEVICE_ID_LP101: 2009 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 2010 break; 2011 case PCI_DEVICE_ID_LP10000S: 2012 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 2013 break; 2014 case PCI_DEVICE_ID_LP11000S: 2015 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 2016 break; 2017 case PCI_DEVICE_ID_LPE11000S: 2018 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 2019 break; 2020 case PCI_DEVICE_ID_SAT: 2021 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 2022 break; 2023 case PCI_DEVICE_ID_SAT_MID: 2024 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 2025 break; 2026 case PCI_DEVICE_ID_SAT_SMB: 2027 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 2028 break; 2029 case PCI_DEVICE_ID_SAT_DCSP: 2030 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 2031 break; 2032 case PCI_DEVICE_ID_SAT_SCSP: 2033 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 2034 break; 2035 case PCI_DEVICE_ID_SAT_S: 2036 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 2037 break; 2038 case PCI_DEVICE_ID_HORNET: 2039 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 2040 GE = 1; 2041 break; 2042 case PCI_DEVICE_ID_PROTEUS_VF: 2043 m = (typeof(m)){"LPev12000", "PCIe IOV", 2044 "Fibre Channel Adapter"}; 2045 break; 2046 case PCI_DEVICE_ID_PROTEUS_PF: 2047 m = (typeof(m)){"LPev12000", "PCIe IOV", 2048 "Fibre Channel Adapter"}; 2049 break; 2050 case PCI_DEVICE_ID_PROTEUS_S: 2051 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 2052 "Fibre Channel Adapter"}; 2053 break; 2054 case PCI_DEVICE_ID_TIGERSHARK: 2055 oneConnect = 1; 2056 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2057 break; 2058 case PCI_DEVICE_ID_TOMCAT: 2059 oneConnect = 1; 2060 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2061 break; 2062 case PCI_DEVICE_ID_FALCON: 2063 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2064 "EmulexSecure Fibre"}; 2065 break; 2066 case PCI_DEVICE_ID_BALIUS: 2067 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2068 "Fibre Channel Adapter"}; 2069 break; 2070 case PCI_DEVICE_ID_LANCER_FC: 2071 case PCI_DEVICE_ID_LANCER_FC_VF: 2072 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2073 break; 2074 case PCI_DEVICE_ID_LANCER_FCOE: 2075 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2076 oneConnect = 1; 2077 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2078 break; 2079 case PCI_DEVICE_ID_SKYHAWK: 2080 case PCI_DEVICE_ID_SKYHAWK_VF: 2081 oneConnect = 1; 2082 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"}; 2083 break; 2084 default: 2085 m = (typeof(m)){"Unknown", "", ""}; 2086 break; 2087 } 2088 2089 if (mdp && mdp[0] == '\0') 2090 snprintf(mdp, 79,"%s", m.name); 2091 /* 2092 * oneConnect hba requires special processing, they are all initiators 2093 * and we put the port number on the end 2094 */ 2095 if (descp && descp[0] == '\0') { 2096 if (oneConnect) 2097 snprintf(descp, 255, 2098 "Emulex OneConnect %s, %s Initiator %s", 2099 m.name, m.function, 2100 phba->Port); 2101 else if (max_speed == 0) 2102 snprintf(descp, 255, 2103 "Emulex %s %s %s ", 2104 m.name, m.bus, m.function); 2105 else 2106 snprintf(descp, 255, 2107 "Emulex %s %d%s %s %s", 2108 m.name, max_speed, (GE) ? "GE" : "Gb", 2109 m.bus, m.function); 2110 } 2111 } 2112 2113 /** 2114 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2115 * @phba: pointer to lpfc hba data structure. 2116 * @pring: pointer to a IOCB ring. 2117 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2118 * 2119 * This routine posts a given number of IOCBs with the associated DMA buffer 2120 * descriptors specified by the cnt argument to the given IOCB ring. 2121 * 2122 * Return codes 2123 * The number of IOCBs NOT able to be posted to the IOCB ring. 2124 **/ 2125 int 2126 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2127 { 2128 IOCB_t *icmd; 2129 struct lpfc_iocbq *iocb; 2130 struct lpfc_dmabuf *mp1, *mp2; 2131 2132 cnt += pring->missbufcnt; 2133 2134 /* While there are buffers to post */ 2135 while (cnt > 0) { 2136 /* Allocate buffer for command iocb */ 2137 iocb = lpfc_sli_get_iocbq(phba); 2138 if (iocb == NULL) { 2139 pring->missbufcnt = cnt; 2140 return cnt; 2141 } 2142 icmd = &iocb->iocb; 2143 2144 /* 2 buffers can be posted per command */ 2145 /* Allocate buffer to post */ 2146 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2147 if (mp1) 2148 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2149 if (!mp1 || !mp1->virt) { 2150 kfree(mp1); 2151 lpfc_sli_release_iocbq(phba, iocb); 2152 pring->missbufcnt = cnt; 2153 return cnt; 2154 } 2155 2156 INIT_LIST_HEAD(&mp1->list); 2157 /* Allocate buffer to post */ 2158 if (cnt > 1) { 2159 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2160 if (mp2) 2161 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2162 &mp2->phys); 2163 if (!mp2 || !mp2->virt) { 2164 kfree(mp2); 2165 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2166 kfree(mp1); 2167 lpfc_sli_release_iocbq(phba, iocb); 2168 pring->missbufcnt = cnt; 2169 return cnt; 2170 } 2171 2172 INIT_LIST_HEAD(&mp2->list); 2173 } else { 2174 mp2 = NULL; 2175 } 2176 2177 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2178 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2179 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2180 icmd->ulpBdeCount = 1; 2181 cnt--; 2182 if (mp2) { 2183 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2184 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2185 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2186 cnt--; 2187 icmd->ulpBdeCount = 2; 2188 } 2189 2190 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2191 icmd->ulpLe = 1; 2192 2193 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2194 IOCB_ERROR) { 2195 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2196 kfree(mp1); 2197 cnt++; 2198 if (mp2) { 2199 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2200 kfree(mp2); 2201 cnt++; 2202 } 2203 lpfc_sli_release_iocbq(phba, iocb); 2204 pring->missbufcnt = cnt; 2205 return cnt; 2206 } 2207 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2208 if (mp2) 2209 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2210 } 2211 pring->missbufcnt = 0; 2212 return 0; 2213 } 2214 2215 /** 2216 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2217 * @phba: pointer to lpfc hba data structure. 2218 * 2219 * This routine posts initial receive IOCB buffers to the ELS ring. The 2220 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2221 * set to 64 IOCBs. 2222 * 2223 * Return codes 2224 * 0 - success (currently always success) 2225 **/ 2226 static int 2227 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2228 { 2229 struct lpfc_sli *psli = &phba->sli; 2230 2231 /* Ring 0, ELS / CT buffers */ 2232 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2233 /* Ring 2 - FCP no buffers needed */ 2234 2235 return 0; 2236 } 2237 2238 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2239 2240 /** 2241 * lpfc_sha_init - Set up initial array of hash table entries 2242 * @HashResultPointer: pointer to an array as hash table. 2243 * 2244 * This routine sets up the initial values to the array of hash table entries 2245 * for the LC HBAs. 2246 **/ 2247 static void 2248 lpfc_sha_init(uint32_t * HashResultPointer) 2249 { 2250 HashResultPointer[0] = 0x67452301; 2251 HashResultPointer[1] = 0xEFCDAB89; 2252 HashResultPointer[2] = 0x98BADCFE; 2253 HashResultPointer[3] = 0x10325476; 2254 HashResultPointer[4] = 0xC3D2E1F0; 2255 } 2256 2257 /** 2258 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2259 * @HashResultPointer: pointer to an initial/result hash table. 2260 * @HashWorkingPointer: pointer to an working hash table. 2261 * 2262 * This routine iterates an initial hash table pointed by @HashResultPointer 2263 * with the values from the working hash table pointeed by @HashWorkingPointer. 2264 * The results are putting back to the initial hash table, returned through 2265 * the @HashResultPointer as the result hash table. 2266 **/ 2267 static void 2268 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2269 { 2270 int t; 2271 uint32_t TEMP; 2272 uint32_t A, B, C, D, E; 2273 t = 16; 2274 do { 2275 HashWorkingPointer[t] = 2276 S(1, 2277 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2278 8] ^ 2279 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2280 } while (++t <= 79); 2281 t = 0; 2282 A = HashResultPointer[0]; 2283 B = HashResultPointer[1]; 2284 C = HashResultPointer[2]; 2285 D = HashResultPointer[3]; 2286 E = HashResultPointer[4]; 2287 2288 do { 2289 if (t < 20) { 2290 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2291 } else if (t < 40) { 2292 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2293 } else if (t < 60) { 2294 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2295 } else { 2296 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2297 } 2298 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2299 E = D; 2300 D = C; 2301 C = S(30, B); 2302 B = A; 2303 A = TEMP; 2304 } while (++t <= 79); 2305 2306 HashResultPointer[0] += A; 2307 HashResultPointer[1] += B; 2308 HashResultPointer[2] += C; 2309 HashResultPointer[3] += D; 2310 HashResultPointer[4] += E; 2311 2312 } 2313 2314 /** 2315 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2316 * @RandomChallenge: pointer to the entry of host challenge random number array. 2317 * @HashWorking: pointer to the entry of the working hash array. 2318 * 2319 * This routine calculates the working hash array referred by @HashWorking 2320 * from the challenge random numbers associated with the host, referred by 2321 * @RandomChallenge. The result is put into the entry of the working hash 2322 * array and returned by reference through @HashWorking. 2323 **/ 2324 static void 2325 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2326 { 2327 *HashWorking = (*RandomChallenge ^ *HashWorking); 2328 } 2329 2330 /** 2331 * lpfc_hba_init - Perform special handling for LC HBA initialization 2332 * @phba: pointer to lpfc hba data structure. 2333 * @hbainit: pointer to an array of unsigned 32-bit integers. 2334 * 2335 * This routine performs the special handling for LC HBA initialization. 2336 **/ 2337 void 2338 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2339 { 2340 int t; 2341 uint32_t *HashWorking; 2342 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2343 2344 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2345 if (!HashWorking) 2346 return; 2347 2348 HashWorking[0] = HashWorking[78] = *pwwnn++; 2349 HashWorking[1] = HashWorking[79] = *pwwnn; 2350 2351 for (t = 0; t < 7; t++) 2352 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2353 2354 lpfc_sha_init(hbainit); 2355 lpfc_sha_iterate(hbainit, HashWorking); 2356 kfree(HashWorking); 2357 } 2358 2359 /** 2360 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2361 * @vport: pointer to a virtual N_Port data structure. 2362 * 2363 * This routine performs the necessary cleanups before deleting the @vport. 2364 * It invokes the discovery state machine to perform necessary state 2365 * transitions and to release the ndlps associated with the @vport. Note, 2366 * the physical port is treated as @vport 0. 2367 **/ 2368 void 2369 lpfc_cleanup(struct lpfc_vport *vport) 2370 { 2371 struct lpfc_hba *phba = vport->phba; 2372 struct lpfc_nodelist *ndlp, *next_ndlp; 2373 int i = 0; 2374 2375 if (phba->link_state > LPFC_LINK_DOWN) 2376 lpfc_port_link_failure(vport); 2377 2378 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2379 if (!NLP_CHK_NODE_ACT(ndlp)) { 2380 ndlp = lpfc_enable_node(vport, ndlp, 2381 NLP_STE_UNUSED_NODE); 2382 if (!ndlp) 2383 continue; 2384 spin_lock_irq(&phba->ndlp_lock); 2385 NLP_SET_FREE_REQ(ndlp); 2386 spin_unlock_irq(&phba->ndlp_lock); 2387 /* Trigger the release of the ndlp memory */ 2388 lpfc_nlp_put(ndlp); 2389 continue; 2390 } 2391 spin_lock_irq(&phba->ndlp_lock); 2392 if (NLP_CHK_FREE_REQ(ndlp)) { 2393 /* The ndlp should not be in memory free mode already */ 2394 spin_unlock_irq(&phba->ndlp_lock); 2395 continue; 2396 } else 2397 /* Indicate request for freeing ndlp memory */ 2398 NLP_SET_FREE_REQ(ndlp); 2399 spin_unlock_irq(&phba->ndlp_lock); 2400 2401 if (vport->port_type != LPFC_PHYSICAL_PORT && 2402 ndlp->nlp_DID == Fabric_DID) { 2403 /* Just free up ndlp with Fabric_DID for vports */ 2404 lpfc_nlp_put(ndlp); 2405 continue; 2406 } 2407 2408 /* take care of nodes in unused state before the state 2409 * machine taking action. 2410 */ 2411 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 2412 lpfc_nlp_put(ndlp); 2413 continue; 2414 } 2415 2416 if (ndlp->nlp_type & NLP_FABRIC) 2417 lpfc_disc_state_machine(vport, ndlp, NULL, 2418 NLP_EVT_DEVICE_RECOVERY); 2419 2420 lpfc_disc_state_machine(vport, ndlp, NULL, 2421 NLP_EVT_DEVICE_RM); 2422 } 2423 2424 /* At this point, ALL ndlp's should be gone 2425 * because of the previous NLP_EVT_DEVICE_RM. 2426 * Lets wait for this to happen, if needed. 2427 */ 2428 while (!list_empty(&vport->fc_nodes)) { 2429 if (i++ > 3000) { 2430 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2431 "0233 Nodelist not empty\n"); 2432 list_for_each_entry_safe(ndlp, next_ndlp, 2433 &vport->fc_nodes, nlp_listp) { 2434 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2435 LOG_NODE, 2436 "0282 did:x%x ndlp:x%p " 2437 "usgmap:x%x refcnt:%d\n", 2438 ndlp->nlp_DID, (void *)ndlp, 2439 ndlp->nlp_usg_map, 2440 atomic_read( 2441 &ndlp->kref.refcount)); 2442 } 2443 break; 2444 } 2445 2446 /* Wait for any activity on ndlps to settle */ 2447 msleep(10); 2448 } 2449 lpfc_cleanup_vports_rrqs(vport, NULL); 2450 } 2451 2452 /** 2453 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2454 * @vport: pointer to a virtual N_Port data structure. 2455 * 2456 * This routine stops all the timers associated with a @vport. This function 2457 * is invoked before disabling or deleting a @vport. Note that the physical 2458 * port is treated as @vport 0. 2459 **/ 2460 void 2461 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2462 { 2463 del_timer_sync(&vport->els_tmofunc); 2464 del_timer_sync(&vport->fc_fdmitmo); 2465 del_timer_sync(&vport->delayed_disc_tmo); 2466 lpfc_can_disctmo(vport); 2467 return; 2468 } 2469 2470 /** 2471 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2472 * @phba: pointer to lpfc hba data structure. 2473 * 2474 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2475 * caller of this routine should already hold the host lock. 2476 **/ 2477 void 2478 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2479 { 2480 /* Clear pending FCF rediscovery wait flag */ 2481 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2482 2483 /* Now, try to stop the timer */ 2484 del_timer(&phba->fcf.redisc_wait); 2485 } 2486 2487 /** 2488 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2489 * @phba: pointer to lpfc hba data structure. 2490 * 2491 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2492 * checks whether the FCF rediscovery wait timer is pending with the host 2493 * lock held before proceeding with disabling the timer and clearing the 2494 * wait timer pendig flag. 2495 **/ 2496 void 2497 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2498 { 2499 spin_lock_irq(&phba->hbalock); 2500 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2501 /* FCF rediscovery timer already fired or stopped */ 2502 spin_unlock_irq(&phba->hbalock); 2503 return; 2504 } 2505 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2506 /* Clear failover in progress flags */ 2507 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2508 spin_unlock_irq(&phba->hbalock); 2509 } 2510 2511 /** 2512 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2513 * @phba: pointer to lpfc hba data structure. 2514 * 2515 * This routine stops all the timers associated with a HBA. This function is 2516 * invoked before either putting a HBA offline or unloading the driver. 2517 **/ 2518 void 2519 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2520 { 2521 lpfc_stop_vport_timers(phba->pport); 2522 del_timer_sync(&phba->sli.mbox_tmo); 2523 del_timer_sync(&phba->fabric_block_timer); 2524 del_timer_sync(&phba->eratt_poll); 2525 del_timer_sync(&phba->hb_tmofunc); 2526 if (phba->sli_rev == LPFC_SLI_REV4) { 2527 del_timer_sync(&phba->rrq_tmr); 2528 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2529 } 2530 phba->hb_outstanding = 0; 2531 2532 switch (phba->pci_dev_grp) { 2533 case LPFC_PCI_DEV_LP: 2534 /* Stop any LightPulse device specific driver timers */ 2535 del_timer_sync(&phba->fcp_poll_timer); 2536 break; 2537 case LPFC_PCI_DEV_OC: 2538 /* Stop any OneConnect device sepcific driver timers */ 2539 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2540 break; 2541 default: 2542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2543 "0297 Invalid device group (x%x)\n", 2544 phba->pci_dev_grp); 2545 break; 2546 } 2547 return; 2548 } 2549 2550 /** 2551 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2552 * @phba: pointer to lpfc hba data structure. 2553 * 2554 * This routine marks a HBA's management interface as blocked. Once the HBA's 2555 * management interface is marked as blocked, all the user space access to 2556 * the HBA, whether they are from sysfs interface or libdfc interface will 2557 * all be blocked. The HBA is set to block the management interface when the 2558 * driver prepares the HBA interface for online or offline. 2559 **/ 2560 static void 2561 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action) 2562 { 2563 unsigned long iflag; 2564 uint8_t actcmd = MBX_HEARTBEAT; 2565 unsigned long timeout; 2566 2567 spin_lock_irqsave(&phba->hbalock, iflag); 2568 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2569 spin_unlock_irqrestore(&phba->hbalock, iflag); 2570 if (mbx_action == LPFC_MBX_NO_WAIT) 2571 return; 2572 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2573 spin_lock_irqsave(&phba->hbalock, iflag); 2574 if (phba->sli.mbox_active) { 2575 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2576 /* Determine how long we might wait for the active mailbox 2577 * command to be gracefully completed by firmware. 2578 */ 2579 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2580 phba->sli.mbox_active) * 1000) + jiffies; 2581 } 2582 spin_unlock_irqrestore(&phba->hbalock, iflag); 2583 2584 /* Wait for the outstnading mailbox command to complete */ 2585 while (phba->sli.mbox_active) { 2586 /* Check active mailbox complete status every 2ms */ 2587 msleep(2); 2588 if (time_after(jiffies, timeout)) { 2589 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2590 "2813 Mgmt IO is Blocked %x " 2591 "- mbox cmd %x still active\n", 2592 phba->sli.sli_flag, actcmd); 2593 break; 2594 } 2595 } 2596 } 2597 2598 /** 2599 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 2600 * @phba: pointer to lpfc hba data structure. 2601 * 2602 * Allocate RPIs for all active remote nodes. This is needed whenever 2603 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 2604 * is to fixup the temporary rpi assignments. 2605 **/ 2606 void 2607 lpfc_sli4_node_prep(struct lpfc_hba *phba) 2608 { 2609 struct lpfc_nodelist *ndlp, *next_ndlp; 2610 struct lpfc_vport **vports; 2611 int i; 2612 2613 if (phba->sli_rev != LPFC_SLI_REV4) 2614 return; 2615 2616 vports = lpfc_create_vport_work_array(phba); 2617 if (vports != NULL) { 2618 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2619 if (vports[i]->load_flag & FC_UNLOADING) 2620 continue; 2621 2622 list_for_each_entry_safe(ndlp, next_ndlp, 2623 &vports[i]->fc_nodes, 2624 nlp_listp) { 2625 if (NLP_CHK_NODE_ACT(ndlp)) 2626 ndlp->nlp_rpi = 2627 lpfc_sli4_alloc_rpi(phba); 2628 } 2629 } 2630 } 2631 lpfc_destroy_vport_work_array(phba, vports); 2632 } 2633 2634 /** 2635 * lpfc_online - Initialize and bring a HBA online 2636 * @phba: pointer to lpfc hba data structure. 2637 * 2638 * This routine initializes the HBA and brings a HBA online. During this 2639 * process, the management interface is blocked to prevent user space access 2640 * to the HBA interfering with the driver initialization. 2641 * 2642 * Return codes 2643 * 0 - successful 2644 * 1 - failed 2645 **/ 2646 int 2647 lpfc_online(struct lpfc_hba *phba) 2648 { 2649 struct lpfc_vport *vport; 2650 struct lpfc_vport **vports; 2651 int i; 2652 bool vpis_cleared = false; 2653 2654 if (!phba) 2655 return 0; 2656 vport = phba->pport; 2657 2658 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2659 return 0; 2660 2661 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2662 "0458 Bring Adapter online\n"); 2663 2664 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 2665 2666 if (!lpfc_sli_queue_setup(phba)) { 2667 lpfc_unblock_mgmt_io(phba); 2668 return 1; 2669 } 2670 2671 if (phba->sli_rev == LPFC_SLI_REV4) { 2672 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2673 lpfc_unblock_mgmt_io(phba); 2674 return 1; 2675 } 2676 spin_lock_irq(&phba->hbalock); 2677 if (!phba->sli4_hba.max_cfg_param.vpi_used) 2678 vpis_cleared = true; 2679 spin_unlock_irq(&phba->hbalock); 2680 } else { 2681 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2682 lpfc_unblock_mgmt_io(phba); 2683 return 1; 2684 } 2685 } 2686 2687 vports = lpfc_create_vport_work_array(phba); 2688 if (vports != NULL) 2689 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2690 struct Scsi_Host *shost; 2691 shost = lpfc_shost_from_vport(vports[i]); 2692 spin_lock_irq(shost->host_lock); 2693 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2694 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2695 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2696 if (phba->sli_rev == LPFC_SLI_REV4) { 2697 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2698 if ((vpis_cleared) && 2699 (vports[i]->port_type != 2700 LPFC_PHYSICAL_PORT)) 2701 vports[i]->vpi = 0; 2702 } 2703 spin_unlock_irq(shost->host_lock); 2704 } 2705 lpfc_destroy_vport_work_array(phba, vports); 2706 2707 lpfc_unblock_mgmt_io(phba); 2708 return 0; 2709 } 2710 2711 /** 2712 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2713 * @phba: pointer to lpfc hba data structure. 2714 * 2715 * This routine marks a HBA's management interface as not blocked. Once the 2716 * HBA's management interface is marked as not blocked, all the user space 2717 * access to the HBA, whether they are from sysfs interface or libdfc 2718 * interface will be allowed. The HBA is set to block the management interface 2719 * when the driver prepares the HBA interface for online or offline and then 2720 * set to unblock the management interface afterwards. 2721 **/ 2722 void 2723 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2724 { 2725 unsigned long iflag; 2726 2727 spin_lock_irqsave(&phba->hbalock, iflag); 2728 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2729 spin_unlock_irqrestore(&phba->hbalock, iflag); 2730 } 2731 2732 /** 2733 * lpfc_offline_prep - Prepare a HBA to be brought offline 2734 * @phba: pointer to lpfc hba data structure. 2735 * 2736 * This routine is invoked to prepare a HBA to be brought offline. It performs 2737 * unregistration login to all the nodes on all vports and flushes the mailbox 2738 * queue to make it ready to be brought offline. 2739 **/ 2740 void 2741 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) 2742 { 2743 struct lpfc_vport *vport = phba->pport; 2744 struct lpfc_nodelist *ndlp, *next_ndlp; 2745 struct lpfc_vport **vports; 2746 struct Scsi_Host *shost; 2747 int i; 2748 2749 if (vport->fc_flag & FC_OFFLINE_MODE) 2750 return; 2751 2752 lpfc_block_mgmt_io(phba, mbx_action); 2753 2754 lpfc_linkdown(phba); 2755 2756 /* Issue an unreg_login to all nodes on all vports */ 2757 vports = lpfc_create_vport_work_array(phba); 2758 if (vports != NULL) { 2759 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2760 if (vports[i]->load_flag & FC_UNLOADING) 2761 continue; 2762 shost = lpfc_shost_from_vport(vports[i]); 2763 spin_lock_irq(shost->host_lock); 2764 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2765 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2766 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2767 spin_unlock_irq(shost->host_lock); 2768 2769 shost = lpfc_shost_from_vport(vports[i]); 2770 list_for_each_entry_safe(ndlp, next_ndlp, 2771 &vports[i]->fc_nodes, 2772 nlp_listp) { 2773 if (!NLP_CHK_NODE_ACT(ndlp)) 2774 continue; 2775 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2776 continue; 2777 if (ndlp->nlp_type & NLP_FABRIC) { 2778 lpfc_disc_state_machine(vports[i], ndlp, 2779 NULL, NLP_EVT_DEVICE_RECOVERY); 2780 lpfc_disc_state_machine(vports[i], ndlp, 2781 NULL, NLP_EVT_DEVICE_RM); 2782 } 2783 spin_lock_irq(shost->host_lock); 2784 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2785 spin_unlock_irq(shost->host_lock); 2786 /* 2787 * Whenever an SLI4 port goes offline, free the 2788 * RPI. Get a new RPI when the adapter port 2789 * comes back online. 2790 */ 2791 if (phba->sli_rev == LPFC_SLI_REV4) 2792 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 2793 lpfc_unreg_rpi(vports[i], ndlp); 2794 } 2795 } 2796 } 2797 lpfc_destroy_vport_work_array(phba, vports); 2798 2799 lpfc_sli_mbox_sys_shutdown(phba, mbx_action); 2800 } 2801 2802 /** 2803 * lpfc_offline - Bring a HBA offline 2804 * @phba: pointer to lpfc hba data structure. 2805 * 2806 * This routine actually brings a HBA offline. It stops all the timers 2807 * associated with the HBA, brings down the SLI layer, and eventually 2808 * marks the HBA as in offline state for the upper layer protocol. 2809 **/ 2810 void 2811 lpfc_offline(struct lpfc_hba *phba) 2812 { 2813 struct Scsi_Host *shost; 2814 struct lpfc_vport **vports; 2815 int i; 2816 2817 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2818 return; 2819 2820 /* stop port and all timers associated with this hba */ 2821 lpfc_stop_port(phba); 2822 vports = lpfc_create_vport_work_array(phba); 2823 if (vports != NULL) 2824 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2825 lpfc_stop_vport_timers(vports[i]); 2826 lpfc_destroy_vport_work_array(phba, vports); 2827 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2828 "0460 Bring Adapter offline\n"); 2829 /* Bring down the SLI Layer and cleanup. The HBA is offline 2830 now. */ 2831 lpfc_sli_hba_down(phba); 2832 spin_lock_irq(&phba->hbalock); 2833 phba->work_ha = 0; 2834 spin_unlock_irq(&phba->hbalock); 2835 vports = lpfc_create_vport_work_array(phba); 2836 if (vports != NULL) 2837 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2838 shost = lpfc_shost_from_vport(vports[i]); 2839 spin_lock_irq(shost->host_lock); 2840 vports[i]->work_port_events = 0; 2841 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2842 spin_unlock_irq(shost->host_lock); 2843 } 2844 lpfc_destroy_vport_work_array(phba, vports); 2845 } 2846 2847 /** 2848 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2849 * @phba: pointer to lpfc hba data structure. 2850 * 2851 * This routine is to free all the SCSI buffers and IOCBs from the driver 2852 * list back to kernel. It is called from lpfc_pci_remove_one to free 2853 * the internal resources before the device is removed from the system. 2854 **/ 2855 static void 2856 lpfc_scsi_free(struct lpfc_hba *phba) 2857 { 2858 struct lpfc_scsi_buf *sb, *sb_next; 2859 struct lpfc_iocbq *io, *io_next; 2860 2861 spin_lock_irq(&phba->hbalock); 2862 2863 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2864 2865 spin_lock(&phba->scsi_buf_list_put_lock); 2866 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put, 2867 list) { 2868 list_del(&sb->list); 2869 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2870 sb->dma_handle); 2871 kfree(sb); 2872 phba->total_scsi_bufs--; 2873 } 2874 spin_unlock(&phba->scsi_buf_list_put_lock); 2875 2876 spin_lock(&phba->scsi_buf_list_get_lock); 2877 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get, 2878 list) { 2879 list_del(&sb->list); 2880 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2881 sb->dma_handle); 2882 kfree(sb); 2883 phba->total_scsi_bufs--; 2884 } 2885 spin_unlock(&phba->scsi_buf_list_get_lock); 2886 2887 /* Release all the lpfc_iocbq entries maintained by this host. */ 2888 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2889 list_del(&io->list); 2890 kfree(io); 2891 phba->total_iocbq_bufs--; 2892 } 2893 2894 spin_unlock_irq(&phba->hbalock); 2895 } 2896 2897 /** 2898 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping 2899 * @phba: pointer to lpfc hba data structure. 2900 * 2901 * This routine first calculates the sizes of the current els and allocated 2902 * scsi sgl lists, and then goes through all sgls to updates the physical 2903 * XRIs assigned due to port function reset. During port initialization, the 2904 * current els and allocated scsi sgl lists are 0s. 2905 * 2906 * Return codes 2907 * 0 - successful (for now, it always returns 0) 2908 **/ 2909 int 2910 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba) 2911 { 2912 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 2913 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL; 2914 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt; 2915 LIST_HEAD(els_sgl_list); 2916 LIST_HEAD(scsi_sgl_list); 2917 int rc; 2918 2919 /* 2920 * update on pci function's els xri-sgl list 2921 */ 2922 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 2923 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 2924 /* els xri-sgl expanded */ 2925 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 2926 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2927 "3157 ELS xri-sgl count increased from " 2928 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 2929 els_xri_cnt); 2930 /* allocate the additional els sgls */ 2931 for (i = 0; i < xri_cnt; i++) { 2932 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 2933 GFP_KERNEL); 2934 if (sglq_entry == NULL) { 2935 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2936 "2562 Failure to allocate an " 2937 "ELS sgl entry:%d\n", i); 2938 rc = -ENOMEM; 2939 goto out_free_mem; 2940 } 2941 sglq_entry->buff_type = GEN_BUFF_TYPE; 2942 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 2943 &sglq_entry->phys); 2944 if (sglq_entry->virt == NULL) { 2945 kfree(sglq_entry); 2946 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2947 "2563 Failure to allocate an " 2948 "ELS mbuf:%d\n", i); 2949 rc = -ENOMEM; 2950 goto out_free_mem; 2951 } 2952 sglq_entry->sgl = sglq_entry->virt; 2953 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 2954 sglq_entry->state = SGL_FREED; 2955 list_add_tail(&sglq_entry->list, &els_sgl_list); 2956 } 2957 spin_lock_irq(&phba->hbalock); 2958 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 2959 spin_unlock_irq(&phba->hbalock); 2960 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 2961 /* els xri-sgl shrinked */ 2962 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 2963 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2964 "3158 ELS xri-sgl count decreased from " 2965 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 2966 els_xri_cnt); 2967 spin_lock_irq(&phba->hbalock); 2968 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list); 2969 spin_unlock_irq(&phba->hbalock); 2970 /* release extra els sgls from list */ 2971 for (i = 0; i < xri_cnt; i++) { 2972 list_remove_head(&els_sgl_list, 2973 sglq_entry, struct lpfc_sglq, list); 2974 if (sglq_entry) { 2975 lpfc_mbuf_free(phba, sglq_entry->virt, 2976 sglq_entry->phys); 2977 kfree(sglq_entry); 2978 } 2979 } 2980 spin_lock_irq(&phba->hbalock); 2981 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 2982 spin_unlock_irq(&phba->hbalock); 2983 } else 2984 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2985 "3163 ELS xri-sgl count unchanged: %d\n", 2986 els_xri_cnt); 2987 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 2988 2989 /* update xris to els sgls on the list */ 2990 sglq_entry = NULL; 2991 sglq_entry_next = NULL; 2992 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 2993 &phba->sli4_hba.lpfc_sgl_list, list) { 2994 lxri = lpfc_sli4_next_xritag(phba); 2995 if (lxri == NO_XRI) { 2996 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2997 "2400 Failed to allocate xri for " 2998 "ELS sgl\n"); 2999 rc = -ENOMEM; 3000 goto out_free_mem; 3001 } 3002 sglq_entry->sli4_lxritag = lxri; 3003 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3004 } 3005 3006 /* 3007 * update on pci function's allocated scsi xri-sgl list 3008 */ 3009 phba->total_scsi_bufs = 0; 3010 3011 /* maximum number of xris available for scsi buffers */ 3012 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - 3013 els_xri_cnt; 3014 3015 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3016 "2401 Current allocated SCSI xri-sgl count:%d, " 3017 "maximum SCSI xri count:%d\n", 3018 phba->sli4_hba.scsi_xri_cnt, 3019 phba->sli4_hba.scsi_xri_max); 3020 3021 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3022 spin_lock_irq(&phba->scsi_buf_list_put_lock); 3023 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list); 3024 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list); 3025 spin_unlock_irq(&phba->scsi_buf_list_put_lock); 3026 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3027 3028 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { 3029 /* max scsi xri shrinked below the allocated scsi buffers */ 3030 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - 3031 phba->sli4_hba.scsi_xri_max; 3032 /* release the extra allocated scsi buffers */ 3033 for (i = 0; i < scsi_xri_cnt; i++) { 3034 list_remove_head(&scsi_sgl_list, psb, 3035 struct lpfc_scsi_buf, list); 3036 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data, 3037 psb->dma_handle); 3038 kfree(psb); 3039 } 3040 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3041 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; 3042 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3043 } 3044 3045 /* update xris associated to remaining allocated scsi buffers */ 3046 psb = NULL; 3047 psb_next = NULL; 3048 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { 3049 lxri = lpfc_sli4_next_xritag(phba); 3050 if (lxri == NO_XRI) { 3051 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3052 "2560 Failed to allocate xri for " 3053 "scsi buffer\n"); 3054 rc = -ENOMEM; 3055 goto out_free_mem; 3056 } 3057 psb->cur_iocbq.sli4_lxritag = lxri; 3058 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3059 } 3060 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3061 spin_lock_irq(&phba->scsi_buf_list_put_lock); 3062 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get); 3063 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 3064 spin_unlock_irq(&phba->scsi_buf_list_put_lock); 3065 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3066 3067 return 0; 3068 3069 out_free_mem: 3070 lpfc_free_els_sgl_list(phba); 3071 lpfc_scsi_free(phba); 3072 return rc; 3073 } 3074 3075 /** 3076 * lpfc_create_port - Create an FC port 3077 * @phba: pointer to lpfc hba data structure. 3078 * @instance: a unique integer ID to this FC port. 3079 * @dev: pointer to the device data structure. 3080 * 3081 * This routine creates a FC port for the upper layer protocol. The FC port 3082 * can be created on top of either a physical port or a virtual port provided 3083 * by the HBA. This routine also allocates a SCSI host data structure (shost) 3084 * and associates the FC port created before adding the shost into the SCSI 3085 * layer. 3086 * 3087 * Return codes 3088 * @vport - pointer to the virtual N_Port data structure. 3089 * NULL - port create failed. 3090 **/ 3091 struct lpfc_vport * 3092 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 3093 { 3094 struct lpfc_vport *vport; 3095 struct Scsi_Host *shost; 3096 int error = 0; 3097 3098 if (dev != &phba->pcidev->dev) 3099 shost = scsi_host_alloc(&lpfc_vport_template, 3100 sizeof(struct lpfc_vport)); 3101 else 3102 shost = scsi_host_alloc(&lpfc_template, 3103 sizeof(struct lpfc_vport)); 3104 if (!shost) 3105 goto out; 3106 3107 vport = (struct lpfc_vport *) shost->hostdata; 3108 vport->phba = phba; 3109 vport->load_flag |= FC_LOADING; 3110 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3111 vport->fc_rscn_flush = 0; 3112 3113 lpfc_get_vport_cfgparam(vport); 3114 shost->unique_id = instance; 3115 shost->max_id = LPFC_MAX_TARGET; 3116 shost->max_lun = vport->cfg_max_luns; 3117 shost->this_id = -1; 3118 shost->max_cmd_len = 16; 3119 if (phba->sli_rev == LPFC_SLI_REV4) { 3120 shost->dma_boundary = 3121 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3122 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 3123 } 3124 3125 /* 3126 * Set initial can_queue value since 0 is no longer supported and 3127 * scsi_add_host will fail. This will be adjusted later based on the 3128 * max xri value determined in hba setup. 3129 */ 3130 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3131 if (dev != &phba->pcidev->dev) { 3132 shost->transportt = lpfc_vport_transport_template; 3133 vport->port_type = LPFC_NPIV_PORT; 3134 } else { 3135 shost->transportt = lpfc_transport_template; 3136 vport->port_type = LPFC_PHYSICAL_PORT; 3137 } 3138 3139 /* Initialize all internally managed lists. */ 3140 INIT_LIST_HEAD(&vport->fc_nodes); 3141 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3142 spin_lock_init(&vport->work_port_lock); 3143 3144 init_timer(&vport->fc_disctmo); 3145 vport->fc_disctmo.function = lpfc_disc_timeout; 3146 vport->fc_disctmo.data = (unsigned long)vport; 3147 3148 init_timer(&vport->fc_fdmitmo); 3149 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 3150 vport->fc_fdmitmo.data = (unsigned long)vport; 3151 3152 init_timer(&vport->els_tmofunc); 3153 vport->els_tmofunc.function = lpfc_els_timeout; 3154 vport->els_tmofunc.data = (unsigned long)vport; 3155 3156 init_timer(&vport->delayed_disc_tmo); 3157 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; 3158 vport->delayed_disc_tmo.data = (unsigned long)vport; 3159 3160 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3161 if (error) 3162 goto out_put_shost; 3163 3164 spin_lock_irq(&phba->hbalock); 3165 list_add_tail(&vport->listentry, &phba->port_list); 3166 spin_unlock_irq(&phba->hbalock); 3167 return vport; 3168 3169 out_put_shost: 3170 scsi_host_put(shost); 3171 out: 3172 return NULL; 3173 } 3174 3175 /** 3176 * destroy_port - destroy an FC port 3177 * @vport: pointer to an lpfc virtual N_Port data structure. 3178 * 3179 * This routine destroys a FC port from the upper layer protocol. All the 3180 * resources associated with the port are released. 3181 **/ 3182 void 3183 destroy_port(struct lpfc_vport *vport) 3184 { 3185 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3186 struct lpfc_hba *phba = vport->phba; 3187 3188 lpfc_debugfs_terminate(vport); 3189 fc_remove_host(shost); 3190 scsi_remove_host(shost); 3191 3192 spin_lock_irq(&phba->hbalock); 3193 list_del_init(&vport->listentry); 3194 spin_unlock_irq(&phba->hbalock); 3195 3196 lpfc_cleanup(vport); 3197 return; 3198 } 3199 3200 /** 3201 * lpfc_get_instance - Get a unique integer ID 3202 * 3203 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 3204 * uses the kernel idr facility to perform the task. 3205 * 3206 * Return codes: 3207 * instance - a unique integer ID allocated as the new instance. 3208 * -1 - lpfc get instance failed. 3209 **/ 3210 int 3211 lpfc_get_instance(void) 3212 { 3213 int ret; 3214 3215 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); 3216 return ret < 0 ? -1 : ret; 3217 } 3218 3219 /** 3220 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 3221 * @shost: pointer to SCSI host data structure. 3222 * @time: elapsed time of the scan in jiffies. 3223 * 3224 * This routine is called by the SCSI layer with a SCSI host to determine 3225 * whether the scan host is finished. 3226 * 3227 * Note: there is no scan_start function as adapter initialization will have 3228 * asynchronously kicked off the link initialization. 3229 * 3230 * Return codes 3231 * 0 - SCSI host scan is not over yet. 3232 * 1 - SCSI host scan is over. 3233 **/ 3234 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 3235 { 3236 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3237 struct lpfc_hba *phba = vport->phba; 3238 int stat = 0; 3239 3240 spin_lock_irq(shost->host_lock); 3241 3242 if (vport->load_flag & FC_UNLOADING) { 3243 stat = 1; 3244 goto finished; 3245 } 3246 if (time >= msecs_to_jiffies(30 * 1000)) { 3247 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3248 "0461 Scanning longer than 30 " 3249 "seconds. Continuing initialization\n"); 3250 stat = 1; 3251 goto finished; 3252 } 3253 if (time >= msecs_to_jiffies(15 * 1000) && 3254 phba->link_state <= LPFC_LINK_DOWN) { 3255 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3256 "0465 Link down longer than 15 " 3257 "seconds. Continuing initialization\n"); 3258 stat = 1; 3259 goto finished; 3260 } 3261 3262 if (vport->port_state != LPFC_VPORT_READY) 3263 goto finished; 3264 if (vport->num_disc_nodes || vport->fc_prli_sent) 3265 goto finished; 3266 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000)) 3267 goto finished; 3268 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 3269 goto finished; 3270 3271 stat = 1; 3272 3273 finished: 3274 spin_unlock_irq(shost->host_lock); 3275 return stat; 3276 } 3277 3278 /** 3279 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 3280 * @shost: pointer to SCSI host data structure. 3281 * 3282 * This routine initializes a given SCSI host attributes on a FC port. The 3283 * SCSI host can be either on top of a physical port or a virtual port. 3284 **/ 3285 void lpfc_host_attrib_init(struct Scsi_Host *shost) 3286 { 3287 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3288 struct lpfc_hba *phba = vport->phba; 3289 /* 3290 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 3291 */ 3292 3293 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 3294 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3295 fc_host_supported_classes(shost) = FC_COS_CLASS3; 3296 3297 memset(fc_host_supported_fc4s(shost), 0, 3298 sizeof(fc_host_supported_fc4s(shost))); 3299 fc_host_supported_fc4s(shost)[2] = 1; 3300 fc_host_supported_fc4s(shost)[7] = 1; 3301 3302 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 3303 sizeof fc_host_symbolic_name(shost)); 3304 3305 fc_host_supported_speeds(shost) = 0; 3306 if (phba->lmt & LMT_16Gb) 3307 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 3308 if (phba->lmt & LMT_10Gb) 3309 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 3310 if (phba->lmt & LMT_8Gb) 3311 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 3312 if (phba->lmt & LMT_4Gb) 3313 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 3314 if (phba->lmt & LMT_2Gb) 3315 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 3316 if (phba->lmt & LMT_1Gb) 3317 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 3318 3319 fc_host_maxframe_size(shost) = 3320 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 3321 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 3322 3323 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 3324 3325 /* This value is also unchanging */ 3326 memset(fc_host_active_fc4s(shost), 0, 3327 sizeof(fc_host_active_fc4s(shost))); 3328 fc_host_active_fc4s(shost)[2] = 1; 3329 fc_host_active_fc4s(shost)[7] = 1; 3330 3331 fc_host_max_npiv_vports(shost) = phba->max_vpi; 3332 spin_lock_irq(shost->host_lock); 3333 vport->load_flag &= ~FC_LOADING; 3334 spin_unlock_irq(shost->host_lock); 3335 } 3336 3337 /** 3338 * lpfc_stop_port_s3 - Stop SLI3 device port 3339 * @phba: pointer to lpfc hba data structure. 3340 * 3341 * This routine is invoked to stop an SLI3 device port, it stops the device 3342 * from generating interrupts and stops the device driver's timers for the 3343 * device. 3344 **/ 3345 static void 3346 lpfc_stop_port_s3(struct lpfc_hba *phba) 3347 { 3348 /* Clear all interrupt enable conditions */ 3349 writel(0, phba->HCregaddr); 3350 readl(phba->HCregaddr); /* flush */ 3351 /* Clear all pending interrupts */ 3352 writel(0xffffffff, phba->HAregaddr); 3353 readl(phba->HAregaddr); /* flush */ 3354 3355 /* Reset some HBA SLI setup states */ 3356 lpfc_stop_hba_timers(phba); 3357 phba->pport->work_port_events = 0; 3358 } 3359 3360 /** 3361 * lpfc_stop_port_s4 - Stop SLI4 device port 3362 * @phba: pointer to lpfc hba data structure. 3363 * 3364 * This routine is invoked to stop an SLI4 device port, it stops the device 3365 * from generating interrupts and stops the device driver's timers for the 3366 * device. 3367 **/ 3368 static void 3369 lpfc_stop_port_s4(struct lpfc_hba *phba) 3370 { 3371 /* Reset some HBA SLI4 setup states */ 3372 lpfc_stop_hba_timers(phba); 3373 phba->pport->work_port_events = 0; 3374 phba->sli4_hba.intr_enable = 0; 3375 } 3376 3377 /** 3378 * lpfc_stop_port - Wrapper function for stopping hba port 3379 * @phba: Pointer to HBA context object. 3380 * 3381 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 3382 * the API jump table function pointer from the lpfc_hba struct. 3383 **/ 3384 void 3385 lpfc_stop_port(struct lpfc_hba *phba) 3386 { 3387 phba->lpfc_stop_port(phba); 3388 } 3389 3390 /** 3391 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 3392 * @phba: Pointer to hba for which this call is being executed. 3393 * 3394 * This routine starts the timer waiting for the FCF rediscovery to complete. 3395 **/ 3396 void 3397 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 3398 { 3399 unsigned long fcf_redisc_wait_tmo = 3400 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 3401 /* Start fcf rediscovery wait period timer */ 3402 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 3403 spin_lock_irq(&phba->hbalock); 3404 /* Allow action to new fcf asynchronous event */ 3405 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 3406 /* Mark the FCF rediscovery pending state */ 3407 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 3408 spin_unlock_irq(&phba->hbalock); 3409 } 3410 3411 /** 3412 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 3413 * @ptr: Map to lpfc_hba data structure pointer. 3414 * 3415 * This routine is invoked when waiting for FCF table rediscover has been 3416 * timed out. If new FCF record(s) has (have) been discovered during the 3417 * wait period, a new FCF event shall be added to the FCOE async event 3418 * list, and then worker thread shall be waked up for processing from the 3419 * worker thread context. 3420 **/ 3421 void 3422 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 3423 { 3424 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 3425 3426 /* Don't send FCF rediscovery event if timer cancelled */ 3427 spin_lock_irq(&phba->hbalock); 3428 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 3429 spin_unlock_irq(&phba->hbalock); 3430 return; 3431 } 3432 /* Clear FCF rediscovery timer pending flag */ 3433 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 3434 /* FCF rediscovery event to worker thread */ 3435 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 3436 spin_unlock_irq(&phba->hbalock); 3437 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3438 "2776 FCF rediscover quiescent timer expired\n"); 3439 /* wake up worker thread */ 3440 lpfc_worker_wake_up(phba); 3441 } 3442 3443 /** 3444 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3445 * @phba: pointer to lpfc hba data structure. 3446 * @acqe_link: pointer to the async link completion queue entry. 3447 * 3448 * This routine is to parse the SLI4 link-attention link fault code and 3449 * translate it into the base driver's read link attention mailbox command 3450 * status. 3451 * 3452 * Return: Link-attention status in terms of base driver's coding. 3453 **/ 3454 static uint16_t 3455 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3456 struct lpfc_acqe_link *acqe_link) 3457 { 3458 uint16_t latt_fault; 3459 3460 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3461 case LPFC_ASYNC_LINK_FAULT_NONE: 3462 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3463 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3464 latt_fault = 0; 3465 break; 3466 default: 3467 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3468 "0398 Invalid link fault code: x%x\n", 3469 bf_get(lpfc_acqe_link_fault, acqe_link)); 3470 latt_fault = MBXERR_ERROR; 3471 break; 3472 } 3473 return latt_fault; 3474 } 3475 3476 /** 3477 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3478 * @phba: pointer to lpfc hba data structure. 3479 * @acqe_link: pointer to the async link completion queue entry. 3480 * 3481 * This routine is to parse the SLI4 link attention type and translate it 3482 * into the base driver's link attention type coding. 3483 * 3484 * Return: Link attention type in terms of base driver's coding. 3485 **/ 3486 static uint8_t 3487 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3488 struct lpfc_acqe_link *acqe_link) 3489 { 3490 uint8_t att_type; 3491 3492 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3493 case LPFC_ASYNC_LINK_STATUS_DOWN: 3494 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3495 att_type = LPFC_ATT_LINK_DOWN; 3496 break; 3497 case LPFC_ASYNC_LINK_STATUS_UP: 3498 /* Ignore physical link up events - wait for logical link up */ 3499 att_type = LPFC_ATT_RESERVED; 3500 break; 3501 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3502 att_type = LPFC_ATT_LINK_UP; 3503 break; 3504 default: 3505 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3506 "0399 Invalid link attention type: x%x\n", 3507 bf_get(lpfc_acqe_link_status, acqe_link)); 3508 att_type = LPFC_ATT_RESERVED; 3509 break; 3510 } 3511 return att_type; 3512 } 3513 3514 /** 3515 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3516 * @phba: pointer to lpfc hba data structure. 3517 * @acqe_link: pointer to the async link completion queue entry. 3518 * 3519 * This routine is to parse the SLI4 link-attention link speed and translate 3520 * it into the base driver's link-attention link speed coding. 3521 * 3522 * Return: Link-attention link speed in terms of base driver's coding. 3523 **/ 3524 static uint8_t 3525 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3526 struct lpfc_acqe_link *acqe_link) 3527 { 3528 uint8_t link_speed; 3529 3530 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3531 case LPFC_ASYNC_LINK_SPEED_ZERO: 3532 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3533 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3534 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3535 break; 3536 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3537 link_speed = LPFC_LINK_SPEED_1GHZ; 3538 break; 3539 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3540 link_speed = LPFC_LINK_SPEED_10GHZ; 3541 break; 3542 default: 3543 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3544 "0483 Invalid link-attention link speed: x%x\n", 3545 bf_get(lpfc_acqe_link_speed, acqe_link)); 3546 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3547 break; 3548 } 3549 return link_speed; 3550 } 3551 3552 /** 3553 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 3554 * @phba: pointer to lpfc hba data structure. 3555 * 3556 * This routine is to get an SLI3 FC port's link speed in Mbps. 3557 * 3558 * Return: link speed in terms of Mbps. 3559 **/ 3560 uint32_t 3561 lpfc_sli_port_speed_get(struct lpfc_hba *phba) 3562 { 3563 uint32_t link_speed; 3564 3565 if (!lpfc_is_link_up(phba)) 3566 return 0; 3567 3568 switch (phba->fc_linkspeed) { 3569 case LPFC_LINK_SPEED_1GHZ: 3570 link_speed = 1000; 3571 break; 3572 case LPFC_LINK_SPEED_2GHZ: 3573 link_speed = 2000; 3574 break; 3575 case LPFC_LINK_SPEED_4GHZ: 3576 link_speed = 4000; 3577 break; 3578 case LPFC_LINK_SPEED_8GHZ: 3579 link_speed = 8000; 3580 break; 3581 case LPFC_LINK_SPEED_10GHZ: 3582 link_speed = 10000; 3583 break; 3584 case LPFC_LINK_SPEED_16GHZ: 3585 link_speed = 16000; 3586 break; 3587 default: 3588 link_speed = 0; 3589 } 3590 return link_speed; 3591 } 3592 3593 /** 3594 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 3595 * @phba: pointer to lpfc hba data structure. 3596 * @evt_code: asynchronous event code. 3597 * @speed_code: asynchronous event link speed code. 3598 * 3599 * This routine is to parse the giving SLI4 async event link speed code into 3600 * value of Mbps for the link speed. 3601 * 3602 * Return: link speed in terms of Mbps. 3603 **/ 3604 static uint32_t 3605 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 3606 uint8_t speed_code) 3607 { 3608 uint32_t port_speed; 3609 3610 switch (evt_code) { 3611 case LPFC_TRAILER_CODE_LINK: 3612 switch (speed_code) { 3613 case LPFC_EVT_CODE_LINK_NO_LINK: 3614 port_speed = 0; 3615 break; 3616 case LPFC_EVT_CODE_LINK_10_MBIT: 3617 port_speed = 10; 3618 break; 3619 case LPFC_EVT_CODE_LINK_100_MBIT: 3620 port_speed = 100; 3621 break; 3622 case LPFC_EVT_CODE_LINK_1_GBIT: 3623 port_speed = 1000; 3624 break; 3625 case LPFC_EVT_CODE_LINK_10_GBIT: 3626 port_speed = 10000; 3627 break; 3628 default: 3629 port_speed = 0; 3630 } 3631 break; 3632 case LPFC_TRAILER_CODE_FC: 3633 switch (speed_code) { 3634 case LPFC_EVT_CODE_FC_NO_LINK: 3635 port_speed = 0; 3636 break; 3637 case LPFC_EVT_CODE_FC_1_GBAUD: 3638 port_speed = 1000; 3639 break; 3640 case LPFC_EVT_CODE_FC_2_GBAUD: 3641 port_speed = 2000; 3642 break; 3643 case LPFC_EVT_CODE_FC_4_GBAUD: 3644 port_speed = 4000; 3645 break; 3646 case LPFC_EVT_CODE_FC_8_GBAUD: 3647 port_speed = 8000; 3648 break; 3649 case LPFC_EVT_CODE_FC_10_GBAUD: 3650 port_speed = 10000; 3651 break; 3652 case LPFC_EVT_CODE_FC_16_GBAUD: 3653 port_speed = 16000; 3654 break; 3655 default: 3656 port_speed = 0; 3657 } 3658 break; 3659 default: 3660 port_speed = 0; 3661 } 3662 return port_speed; 3663 } 3664 3665 /** 3666 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 3667 * @phba: pointer to lpfc hba data structure. 3668 * @acqe_link: pointer to the async link completion queue entry. 3669 * 3670 * This routine is to handle the SLI4 asynchronous FCoE link event. 3671 **/ 3672 static void 3673 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3674 struct lpfc_acqe_link *acqe_link) 3675 { 3676 struct lpfc_dmabuf *mp; 3677 LPFC_MBOXQ_t *pmb; 3678 MAILBOX_t *mb; 3679 struct lpfc_mbx_read_top *la; 3680 uint8_t att_type; 3681 int rc; 3682 3683 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3684 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 3685 return; 3686 phba->fcoe_eventtag = acqe_link->event_tag; 3687 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3688 if (!pmb) { 3689 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3690 "0395 The mboxq allocation failed\n"); 3691 return; 3692 } 3693 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3694 if (!mp) { 3695 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3696 "0396 The lpfc_dmabuf allocation failed\n"); 3697 goto out_free_pmb; 3698 } 3699 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3700 if (!mp->virt) { 3701 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3702 "0397 The mbuf allocation failed\n"); 3703 goto out_free_dmabuf; 3704 } 3705 3706 /* Cleanup any outstanding ELS commands */ 3707 lpfc_els_flush_all_cmd(phba); 3708 3709 /* Block ELS IOCBs until we have done process link event */ 3710 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3711 3712 /* Update link event statistics */ 3713 phba->sli.slistat.link_event++; 3714 3715 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3716 lpfc_read_topology(phba, pmb, mp); 3717 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3718 pmb->vport = phba->pport; 3719 3720 /* Keep the link status for extra SLI4 state machine reference */ 3721 phba->sli4_hba.link_state.speed = 3722 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 3723 bf_get(lpfc_acqe_link_speed, acqe_link)); 3724 phba->sli4_hba.link_state.duplex = 3725 bf_get(lpfc_acqe_link_duplex, acqe_link); 3726 phba->sli4_hba.link_state.status = 3727 bf_get(lpfc_acqe_link_status, acqe_link); 3728 phba->sli4_hba.link_state.type = 3729 bf_get(lpfc_acqe_link_type, acqe_link); 3730 phba->sli4_hba.link_state.number = 3731 bf_get(lpfc_acqe_link_number, acqe_link); 3732 phba->sli4_hba.link_state.fault = 3733 bf_get(lpfc_acqe_link_fault, acqe_link); 3734 phba->sli4_hba.link_state.logical_speed = 3735 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 3736 3737 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3738 "2900 Async FC/FCoE Link event - Speed:%dGBit " 3739 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 3740 "Logical speed:%dMbps Fault:%d\n", 3741 phba->sli4_hba.link_state.speed, 3742 phba->sli4_hba.link_state.topology, 3743 phba->sli4_hba.link_state.status, 3744 phba->sli4_hba.link_state.type, 3745 phba->sli4_hba.link_state.number, 3746 phba->sli4_hba.link_state.logical_speed, 3747 phba->sli4_hba.link_state.fault); 3748 /* 3749 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 3750 * topology info. Note: Optional for non FC-AL ports. 3751 */ 3752 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3753 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3754 if (rc == MBX_NOT_FINISHED) 3755 goto out_free_dmabuf; 3756 return; 3757 } 3758 /* 3759 * For FCoE Mode: fill in all the topology information we need and call 3760 * the READ_TOPOLOGY completion routine to continue without actually 3761 * sending the READ_TOPOLOGY mailbox command to the port. 3762 */ 3763 /* Parse and translate status field */ 3764 mb = &pmb->u.mb; 3765 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3766 3767 /* Parse and translate link attention fields */ 3768 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3769 la->eventTag = acqe_link->event_tag; 3770 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 3771 bf_set(lpfc_mbx_read_top_link_spd, la, 3772 lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); 3773 3774 /* Fake the the following irrelvant fields */ 3775 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 3776 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 3777 bf_set(lpfc_mbx_read_top_il, la, 0); 3778 bf_set(lpfc_mbx_read_top_pb, la, 0); 3779 bf_set(lpfc_mbx_read_top_fa, la, 0); 3780 bf_set(lpfc_mbx_read_top_mm, la, 0); 3781 3782 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3783 lpfc_mbx_cmpl_read_topology(phba, pmb); 3784 3785 return; 3786 3787 out_free_dmabuf: 3788 kfree(mp); 3789 out_free_pmb: 3790 mempool_free(pmb, phba->mbox_mem_pool); 3791 } 3792 3793 /** 3794 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 3795 * @phba: pointer to lpfc hba data structure. 3796 * @acqe_fc: pointer to the async fc completion queue entry. 3797 * 3798 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 3799 * that the event was received and then issue a read_topology mailbox command so 3800 * that the rest of the driver will treat it the same as SLI3. 3801 **/ 3802 static void 3803 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 3804 { 3805 struct lpfc_dmabuf *mp; 3806 LPFC_MBOXQ_t *pmb; 3807 int rc; 3808 3809 if (bf_get(lpfc_trailer_type, acqe_fc) != 3810 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 3811 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3812 "2895 Non FC link Event detected.(%d)\n", 3813 bf_get(lpfc_trailer_type, acqe_fc)); 3814 return; 3815 } 3816 /* Keep the link status for extra SLI4 state machine reference */ 3817 phba->sli4_hba.link_state.speed = 3818 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 3819 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 3820 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 3821 phba->sli4_hba.link_state.topology = 3822 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 3823 phba->sli4_hba.link_state.status = 3824 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 3825 phba->sli4_hba.link_state.type = 3826 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 3827 phba->sli4_hba.link_state.number = 3828 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 3829 phba->sli4_hba.link_state.fault = 3830 bf_get(lpfc_acqe_link_fault, acqe_fc); 3831 phba->sli4_hba.link_state.logical_speed = 3832 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 3833 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3834 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 3835 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 3836 "%dMbps Fault:%d\n", 3837 phba->sli4_hba.link_state.speed, 3838 phba->sli4_hba.link_state.topology, 3839 phba->sli4_hba.link_state.status, 3840 phba->sli4_hba.link_state.type, 3841 phba->sli4_hba.link_state.number, 3842 phba->sli4_hba.link_state.logical_speed, 3843 phba->sli4_hba.link_state.fault); 3844 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3845 if (!pmb) { 3846 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3847 "2897 The mboxq allocation failed\n"); 3848 return; 3849 } 3850 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3851 if (!mp) { 3852 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3853 "2898 The lpfc_dmabuf allocation failed\n"); 3854 goto out_free_pmb; 3855 } 3856 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3857 if (!mp->virt) { 3858 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3859 "2899 The mbuf allocation failed\n"); 3860 goto out_free_dmabuf; 3861 } 3862 3863 /* Cleanup any outstanding ELS commands */ 3864 lpfc_els_flush_all_cmd(phba); 3865 3866 /* Block ELS IOCBs until we have done process link event */ 3867 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3868 3869 /* Update link event statistics */ 3870 phba->sli.slistat.link_event++; 3871 3872 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3873 lpfc_read_topology(phba, pmb, mp); 3874 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3875 pmb->vport = phba->pport; 3876 3877 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3878 if (rc == MBX_NOT_FINISHED) 3879 goto out_free_dmabuf; 3880 return; 3881 3882 out_free_dmabuf: 3883 kfree(mp); 3884 out_free_pmb: 3885 mempool_free(pmb, phba->mbox_mem_pool); 3886 } 3887 3888 /** 3889 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 3890 * @phba: pointer to lpfc hba data structure. 3891 * @acqe_fc: pointer to the async SLI completion queue entry. 3892 * 3893 * This routine is to handle the SLI4 asynchronous SLI events. 3894 **/ 3895 static void 3896 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 3897 { 3898 char port_name; 3899 char message[128]; 3900 uint8_t status; 3901 struct lpfc_acqe_misconfigured_event *misconfigured; 3902 3903 /* special case misconfigured event as it contains data for all ports */ 3904 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 3905 LPFC_SLI_INTF_IF_TYPE_2) || 3906 (bf_get(lpfc_trailer_type, acqe_sli) != 3907 LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) { 3908 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3909 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 3910 "x%08x SLI Event Type:%d\n", 3911 acqe_sli->event_data1, acqe_sli->event_data2, 3912 bf_get(lpfc_trailer_type, acqe_sli)); 3913 return; 3914 } 3915 3916 port_name = phba->Port[0]; 3917 if (port_name == 0x00) 3918 port_name = '?'; /* get port name is empty */ 3919 3920 misconfigured = (struct lpfc_acqe_misconfigured_event *) 3921 &acqe_sli->event_data1; 3922 3923 /* fetch the status for this port */ 3924 switch (phba->sli4_hba.lnk_info.lnk_no) { 3925 case LPFC_LINK_NUMBER_0: 3926 status = bf_get(lpfc_sli_misconfigured_port0, 3927 &misconfigured->theEvent); 3928 break; 3929 case LPFC_LINK_NUMBER_1: 3930 status = bf_get(lpfc_sli_misconfigured_port1, 3931 &misconfigured->theEvent); 3932 break; 3933 case LPFC_LINK_NUMBER_2: 3934 status = bf_get(lpfc_sli_misconfigured_port2, 3935 &misconfigured->theEvent); 3936 break; 3937 case LPFC_LINK_NUMBER_3: 3938 status = bf_get(lpfc_sli_misconfigured_port3, 3939 &misconfigured->theEvent); 3940 break; 3941 default: 3942 status = ~LPFC_SLI_EVENT_STATUS_VALID; 3943 break; 3944 } 3945 3946 switch (status) { 3947 case LPFC_SLI_EVENT_STATUS_VALID: 3948 return; /* no message if the sfp is okay */ 3949 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 3950 sprintf(message, "Optics faulted/incorrectly installed/not " \ 3951 "installed - Reseat optics, if issue not " 3952 "resolved, replace."); 3953 break; 3954 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 3955 sprintf(message, 3956 "Optics of two types installed - Remove one optic or " \ 3957 "install matching pair of optics."); 3958 break; 3959 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 3960 sprintf(message, "Incompatible optics - Replace with " \ 3961 "compatible optics for card to function."); 3962 break; 3963 default: 3964 /* firmware is reporting a status we don't know about */ 3965 sprintf(message, "Unknown event status x%02x", status); 3966 break; 3967 } 3968 3969 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3970 "3176 Misconfigured Physical Port - " 3971 "Port Name %c %s\n", port_name, message); 3972 } 3973 3974 /** 3975 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3976 * @vport: pointer to vport data structure. 3977 * 3978 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3979 * response to a CVL event. 3980 * 3981 * Return the pointer to the ndlp with the vport if successful, otherwise 3982 * return NULL. 3983 **/ 3984 static struct lpfc_nodelist * 3985 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3986 { 3987 struct lpfc_nodelist *ndlp; 3988 struct Scsi_Host *shost; 3989 struct lpfc_hba *phba; 3990 3991 if (!vport) 3992 return NULL; 3993 phba = vport->phba; 3994 if (!phba) 3995 return NULL; 3996 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3997 if (!ndlp) { 3998 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3999 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 4000 if (!ndlp) 4001 return 0; 4002 lpfc_nlp_init(vport, ndlp, Fabric_DID); 4003 /* Set the node type */ 4004 ndlp->nlp_type |= NLP_FABRIC; 4005 /* Put ndlp onto node list */ 4006 lpfc_enqueue_node(vport, ndlp); 4007 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4008 /* re-setup ndlp without removing from node list */ 4009 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 4010 if (!ndlp) 4011 return 0; 4012 } 4013 if ((phba->pport->port_state < LPFC_FLOGI) && 4014 (phba->pport->port_state != LPFC_VPORT_FAILED)) 4015 return NULL; 4016 /* If virtual link is not yet instantiated ignore CVL */ 4017 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 4018 && (vport->port_state != LPFC_VPORT_FAILED)) 4019 return NULL; 4020 shost = lpfc_shost_from_vport(vport); 4021 if (!shost) 4022 return NULL; 4023 lpfc_linkdown_port(vport); 4024 lpfc_cleanup_pending_mbox(vport); 4025 spin_lock_irq(shost->host_lock); 4026 vport->fc_flag |= FC_VPORT_CVL_RCVD; 4027 spin_unlock_irq(shost->host_lock); 4028 4029 return ndlp; 4030 } 4031 4032 /** 4033 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 4034 * @vport: pointer to lpfc hba data structure. 4035 * 4036 * This routine is to perform Clear Virtual Link (CVL) on all vports in 4037 * response to a FCF dead event. 4038 **/ 4039 static void 4040 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 4041 { 4042 struct lpfc_vport **vports; 4043 int i; 4044 4045 vports = lpfc_create_vport_work_array(phba); 4046 if (vports) 4047 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 4048 lpfc_sli4_perform_vport_cvl(vports[i]); 4049 lpfc_destroy_vport_work_array(phba, vports); 4050 } 4051 4052 /** 4053 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 4054 * @phba: pointer to lpfc hba data structure. 4055 * @acqe_link: pointer to the async fcoe completion queue entry. 4056 * 4057 * This routine is to handle the SLI4 asynchronous fcoe event. 4058 **/ 4059 static void 4060 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 4061 struct lpfc_acqe_fip *acqe_fip) 4062 { 4063 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 4064 int rc; 4065 struct lpfc_vport *vport; 4066 struct lpfc_nodelist *ndlp; 4067 struct Scsi_Host *shost; 4068 int active_vlink_present; 4069 struct lpfc_vport **vports; 4070 int i; 4071 4072 phba->fc_eventTag = acqe_fip->event_tag; 4073 phba->fcoe_eventtag = acqe_fip->event_tag; 4074 switch (event_type) { 4075 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 4076 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 4077 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 4078 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4079 LOG_DISCOVERY, 4080 "2546 New FCF event, evt_tag:x%x, " 4081 "index:x%x\n", 4082 acqe_fip->event_tag, 4083 acqe_fip->index); 4084 else 4085 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 4086 LOG_DISCOVERY, 4087 "2788 FCF param modified event, " 4088 "evt_tag:x%x, index:x%x\n", 4089 acqe_fip->event_tag, 4090 acqe_fip->index); 4091 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4092 /* 4093 * During period of FCF discovery, read the FCF 4094 * table record indexed by the event to update 4095 * FCF roundrobin failover eligible FCF bmask. 4096 */ 4097 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4098 LOG_DISCOVERY, 4099 "2779 Read FCF (x%x) for updating " 4100 "roundrobin FCF failover bmask\n", 4101 acqe_fip->index); 4102 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 4103 } 4104 4105 /* If the FCF discovery is in progress, do nothing. */ 4106 spin_lock_irq(&phba->hbalock); 4107 if (phba->hba_flag & FCF_TS_INPROG) { 4108 spin_unlock_irq(&phba->hbalock); 4109 break; 4110 } 4111 /* If fast FCF failover rescan event is pending, do nothing */ 4112 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 4113 spin_unlock_irq(&phba->hbalock); 4114 break; 4115 } 4116 4117 /* If the FCF has been in discovered state, do nothing. */ 4118 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 4119 spin_unlock_irq(&phba->hbalock); 4120 break; 4121 } 4122 spin_unlock_irq(&phba->hbalock); 4123 4124 /* Otherwise, scan the entire FCF table and re-discover SAN */ 4125 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4126 "2770 Start FCF table scan per async FCF " 4127 "event, evt_tag:x%x, index:x%x\n", 4128 acqe_fip->event_tag, acqe_fip->index); 4129 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 4130 LPFC_FCOE_FCF_GET_FIRST); 4131 if (rc) 4132 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4133 "2547 Issue FCF scan read FCF mailbox " 4134 "command failed (x%x)\n", rc); 4135 break; 4136 4137 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 4138 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4139 "2548 FCF Table full count 0x%x tag 0x%x\n", 4140 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 4141 acqe_fip->event_tag); 4142 break; 4143 4144 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 4145 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4146 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4147 "2549 FCF (x%x) disconnected from network, " 4148 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 4149 /* 4150 * If we are in the middle of FCF failover process, clear 4151 * the corresponding FCF bit in the roundrobin bitmap. 4152 */ 4153 spin_lock_irq(&phba->hbalock); 4154 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4155 spin_unlock_irq(&phba->hbalock); 4156 /* Update FLOGI FCF failover eligible FCF bmask */ 4157 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 4158 break; 4159 } 4160 spin_unlock_irq(&phba->hbalock); 4161 4162 /* If the event is not for currently used fcf do nothing */ 4163 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 4164 break; 4165 4166 /* 4167 * Otherwise, request the port to rediscover the entire FCF 4168 * table for a fast recovery from case that the current FCF 4169 * is no longer valid as we are not in the middle of FCF 4170 * failover process already. 4171 */ 4172 spin_lock_irq(&phba->hbalock); 4173 /* Mark the fast failover process in progress */ 4174 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 4175 spin_unlock_irq(&phba->hbalock); 4176 4177 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4178 "2771 Start FCF fast failover process due to " 4179 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 4180 "\n", acqe_fip->event_tag, acqe_fip->index); 4181 rc = lpfc_sli4_redisc_fcf_table(phba); 4182 if (rc) { 4183 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4184 LOG_DISCOVERY, 4185 "2772 Issue FCF rediscover mabilbox " 4186 "command failed, fail through to FCF " 4187 "dead event\n"); 4188 spin_lock_irq(&phba->hbalock); 4189 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 4190 spin_unlock_irq(&phba->hbalock); 4191 /* 4192 * Last resort will fail over by treating this 4193 * as a link down to FCF registration. 4194 */ 4195 lpfc_sli4_fcf_dead_failthrough(phba); 4196 } else { 4197 /* Reset FCF roundrobin bmask for new discovery */ 4198 lpfc_sli4_clear_fcf_rr_bmask(phba); 4199 /* 4200 * Handling fast FCF failover to a DEAD FCF event is 4201 * considered equalivant to receiving CVL to all vports. 4202 */ 4203 lpfc_sli4_perform_all_vport_cvl(phba); 4204 } 4205 break; 4206 case LPFC_FIP_EVENT_TYPE_CVL: 4207 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4208 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4209 "2718 Clear Virtual Link Received for VPI 0x%x" 4210 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 4211 4212 vport = lpfc_find_vport_by_vpid(phba, 4213 acqe_fip->index); 4214 ndlp = lpfc_sli4_perform_vport_cvl(vport); 4215 if (!ndlp) 4216 break; 4217 active_vlink_present = 0; 4218 4219 vports = lpfc_create_vport_work_array(phba); 4220 if (vports) { 4221 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 4222 i++) { 4223 if ((!(vports[i]->fc_flag & 4224 FC_VPORT_CVL_RCVD)) && 4225 (vports[i]->port_state > LPFC_FDISC)) { 4226 active_vlink_present = 1; 4227 break; 4228 } 4229 } 4230 lpfc_destroy_vport_work_array(phba, vports); 4231 } 4232 4233 if (active_vlink_present) { 4234 /* 4235 * If there are other active VLinks present, 4236 * re-instantiate the Vlink using FDISC. 4237 */ 4238 mod_timer(&ndlp->nlp_delayfunc, 4239 jiffies + msecs_to_jiffies(1000)); 4240 shost = lpfc_shost_from_vport(vport); 4241 spin_lock_irq(shost->host_lock); 4242 ndlp->nlp_flag |= NLP_DELAY_TMO; 4243 spin_unlock_irq(shost->host_lock); 4244 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 4245 vport->port_state = LPFC_FDISC; 4246 } else { 4247 /* 4248 * Otherwise, we request port to rediscover 4249 * the entire FCF table for a fast recovery 4250 * from possible case that the current FCF 4251 * is no longer valid if we are not already 4252 * in the FCF failover process. 4253 */ 4254 spin_lock_irq(&phba->hbalock); 4255 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4256 spin_unlock_irq(&phba->hbalock); 4257 break; 4258 } 4259 /* Mark the fast failover process in progress */ 4260 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 4261 spin_unlock_irq(&phba->hbalock); 4262 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4263 LOG_DISCOVERY, 4264 "2773 Start FCF failover per CVL, " 4265 "evt_tag:x%x\n", acqe_fip->event_tag); 4266 rc = lpfc_sli4_redisc_fcf_table(phba); 4267 if (rc) { 4268 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4269 LOG_DISCOVERY, 4270 "2774 Issue FCF rediscover " 4271 "mabilbox command failed, " 4272 "through to CVL event\n"); 4273 spin_lock_irq(&phba->hbalock); 4274 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 4275 spin_unlock_irq(&phba->hbalock); 4276 /* 4277 * Last resort will be re-try on the 4278 * the current registered FCF entry. 4279 */ 4280 lpfc_retry_pport_discovery(phba); 4281 } else 4282 /* 4283 * Reset FCF roundrobin bmask for new 4284 * discovery. 4285 */ 4286 lpfc_sli4_clear_fcf_rr_bmask(phba); 4287 } 4288 break; 4289 default: 4290 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4291 "0288 Unknown FCoE event type 0x%x event tag " 4292 "0x%x\n", event_type, acqe_fip->event_tag); 4293 break; 4294 } 4295 } 4296 4297 /** 4298 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 4299 * @phba: pointer to lpfc hba data structure. 4300 * @acqe_link: pointer to the async dcbx completion queue entry. 4301 * 4302 * This routine is to handle the SLI4 asynchronous dcbx event. 4303 **/ 4304 static void 4305 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 4306 struct lpfc_acqe_dcbx *acqe_dcbx) 4307 { 4308 phba->fc_eventTag = acqe_dcbx->event_tag; 4309 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4310 "0290 The SLI4 DCBX asynchronous event is not " 4311 "handled yet\n"); 4312 } 4313 4314 /** 4315 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 4316 * @phba: pointer to lpfc hba data structure. 4317 * @acqe_link: pointer to the async grp5 completion queue entry. 4318 * 4319 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 4320 * is an asynchronous notified of a logical link speed change. The Port 4321 * reports the logical link speed in units of 10Mbps. 4322 **/ 4323 static void 4324 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 4325 struct lpfc_acqe_grp5 *acqe_grp5) 4326 { 4327 uint16_t prev_ll_spd; 4328 4329 phba->fc_eventTag = acqe_grp5->event_tag; 4330 phba->fcoe_eventtag = acqe_grp5->event_tag; 4331 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 4332 phba->sli4_hba.link_state.logical_speed = 4333 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 4334 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4335 "2789 GRP5 Async Event: Updating logical link speed " 4336 "from %dMbps to %dMbps\n", prev_ll_spd, 4337 phba->sli4_hba.link_state.logical_speed); 4338 } 4339 4340 /** 4341 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 4342 * @phba: pointer to lpfc hba data structure. 4343 * 4344 * This routine is invoked by the worker thread to process all the pending 4345 * SLI4 asynchronous events. 4346 **/ 4347 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 4348 { 4349 struct lpfc_cq_event *cq_event; 4350 4351 /* First, declare the async event has been handled */ 4352 spin_lock_irq(&phba->hbalock); 4353 phba->hba_flag &= ~ASYNC_EVENT; 4354 spin_unlock_irq(&phba->hbalock); 4355 /* Now, handle all the async events */ 4356 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 4357 /* Get the first event from the head of the event queue */ 4358 spin_lock_irq(&phba->hbalock); 4359 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 4360 cq_event, struct lpfc_cq_event, list); 4361 spin_unlock_irq(&phba->hbalock); 4362 /* Process the asynchronous event */ 4363 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 4364 case LPFC_TRAILER_CODE_LINK: 4365 lpfc_sli4_async_link_evt(phba, 4366 &cq_event->cqe.acqe_link); 4367 break; 4368 case LPFC_TRAILER_CODE_FCOE: 4369 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 4370 break; 4371 case LPFC_TRAILER_CODE_DCBX: 4372 lpfc_sli4_async_dcbx_evt(phba, 4373 &cq_event->cqe.acqe_dcbx); 4374 break; 4375 case LPFC_TRAILER_CODE_GRP5: 4376 lpfc_sli4_async_grp5_evt(phba, 4377 &cq_event->cqe.acqe_grp5); 4378 break; 4379 case LPFC_TRAILER_CODE_FC: 4380 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 4381 break; 4382 case LPFC_TRAILER_CODE_SLI: 4383 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 4384 break; 4385 default: 4386 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4387 "1804 Invalid asynchrous event code: " 4388 "x%x\n", bf_get(lpfc_trailer_code, 4389 &cq_event->cqe.mcqe_cmpl)); 4390 break; 4391 } 4392 /* Free the completion event processed to the free pool */ 4393 lpfc_sli4_cq_event_release(phba, cq_event); 4394 } 4395 } 4396 4397 /** 4398 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 4399 * @phba: pointer to lpfc hba data structure. 4400 * 4401 * This routine is invoked by the worker thread to process FCF table 4402 * rediscovery pending completion event. 4403 **/ 4404 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 4405 { 4406 int rc; 4407 4408 spin_lock_irq(&phba->hbalock); 4409 /* Clear FCF rediscovery timeout event */ 4410 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 4411 /* Clear driver fast failover FCF record flag */ 4412 phba->fcf.failover_rec.flag = 0; 4413 /* Set state for FCF fast failover */ 4414 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 4415 spin_unlock_irq(&phba->hbalock); 4416 4417 /* Scan FCF table from the first entry to re-discover SAN */ 4418 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4419 "2777 Start post-quiescent FCF table scan\n"); 4420 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 4421 if (rc) 4422 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4423 "2747 Issue FCF scan read FCF mailbox " 4424 "command failed 0x%x\n", rc); 4425 } 4426 4427 /** 4428 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 4429 * @phba: pointer to lpfc hba data structure. 4430 * @dev_grp: The HBA PCI-Device group number. 4431 * 4432 * This routine is invoked to set up the per HBA PCI-Device group function 4433 * API jump table entries. 4434 * 4435 * Return: 0 if success, otherwise -ENODEV 4436 **/ 4437 int 4438 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4439 { 4440 int rc; 4441 4442 /* Set up lpfc PCI-device group */ 4443 phba->pci_dev_grp = dev_grp; 4444 4445 /* The LPFC_PCI_DEV_OC uses SLI4 */ 4446 if (dev_grp == LPFC_PCI_DEV_OC) 4447 phba->sli_rev = LPFC_SLI_REV4; 4448 4449 /* Set up device INIT API function jump table */ 4450 rc = lpfc_init_api_table_setup(phba, dev_grp); 4451 if (rc) 4452 return -ENODEV; 4453 /* Set up SCSI API function jump table */ 4454 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 4455 if (rc) 4456 return -ENODEV; 4457 /* Set up SLI API function jump table */ 4458 rc = lpfc_sli_api_table_setup(phba, dev_grp); 4459 if (rc) 4460 return -ENODEV; 4461 /* Set up MBOX API function jump table */ 4462 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 4463 if (rc) 4464 return -ENODEV; 4465 4466 return 0; 4467 } 4468 4469 /** 4470 * lpfc_log_intr_mode - Log the active interrupt mode 4471 * @phba: pointer to lpfc hba data structure. 4472 * @intr_mode: active interrupt mode adopted. 4473 * 4474 * This routine it invoked to log the currently used active interrupt mode 4475 * to the device. 4476 **/ 4477 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 4478 { 4479 switch (intr_mode) { 4480 case 0: 4481 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4482 "0470 Enable INTx interrupt mode.\n"); 4483 break; 4484 case 1: 4485 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4486 "0481 Enabled MSI interrupt mode.\n"); 4487 break; 4488 case 2: 4489 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4490 "0480 Enabled MSI-X interrupt mode.\n"); 4491 break; 4492 default: 4493 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4494 "0482 Illegal interrupt mode.\n"); 4495 break; 4496 } 4497 return; 4498 } 4499 4500 /** 4501 * lpfc_enable_pci_dev - Enable a generic PCI device. 4502 * @phba: pointer to lpfc hba data structure. 4503 * 4504 * This routine is invoked to enable the PCI device that is common to all 4505 * PCI devices. 4506 * 4507 * Return codes 4508 * 0 - successful 4509 * other values - error 4510 **/ 4511 static int 4512 lpfc_enable_pci_dev(struct lpfc_hba *phba) 4513 { 4514 struct pci_dev *pdev; 4515 int bars = 0; 4516 4517 /* Obtain PCI device reference */ 4518 if (!phba->pcidev) 4519 goto out_error; 4520 else 4521 pdev = phba->pcidev; 4522 /* Select PCI BARs */ 4523 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4524 /* Enable PCI device */ 4525 if (pci_enable_device_mem(pdev)) 4526 goto out_error; 4527 /* Request PCI resource for the device */ 4528 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 4529 goto out_disable_device; 4530 /* Set up device as PCI master and save state for EEH */ 4531 pci_set_master(pdev); 4532 pci_try_set_mwi(pdev); 4533 pci_save_state(pdev); 4534 4535 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 4536 if (pci_find_capability(pdev, PCI_CAP_ID_EXP)) 4537 pdev->needs_freset = 1; 4538 4539 return 0; 4540 4541 out_disable_device: 4542 pci_disable_device(pdev); 4543 out_error: 4544 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4545 "1401 Failed to enable pci device, bars:x%x\n", bars); 4546 return -ENODEV; 4547 } 4548 4549 /** 4550 * lpfc_disable_pci_dev - Disable a generic PCI device. 4551 * @phba: pointer to lpfc hba data structure. 4552 * 4553 * This routine is invoked to disable the PCI device that is common to all 4554 * PCI devices. 4555 **/ 4556 static void 4557 lpfc_disable_pci_dev(struct lpfc_hba *phba) 4558 { 4559 struct pci_dev *pdev; 4560 int bars; 4561 4562 /* Obtain PCI device reference */ 4563 if (!phba->pcidev) 4564 return; 4565 else 4566 pdev = phba->pcidev; 4567 /* Select PCI BARs */ 4568 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4569 /* Release PCI resource and disable PCI device */ 4570 pci_release_selected_regions(pdev, bars); 4571 pci_disable_device(pdev); 4572 /* Null out PCI private reference to driver */ 4573 pci_set_drvdata(pdev, NULL); 4574 4575 return; 4576 } 4577 4578 /** 4579 * lpfc_reset_hba - Reset a hba 4580 * @phba: pointer to lpfc hba data structure. 4581 * 4582 * This routine is invoked to reset a hba device. It brings the HBA 4583 * offline, performs a board restart, and then brings the board back 4584 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 4585 * on outstanding mailbox commands. 4586 **/ 4587 void 4588 lpfc_reset_hba(struct lpfc_hba *phba) 4589 { 4590 /* If resets are disabled then set error state and return. */ 4591 if (!phba->cfg_enable_hba_reset) { 4592 phba->link_state = LPFC_HBA_ERROR; 4593 return; 4594 } 4595 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 4596 lpfc_offline(phba); 4597 lpfc_sli_brdrestart(phba); 4598 lpfc_online(phba); 4599 lpfc_unblock_mgmt_io(phba); 4600 } 4601 4602 /** 4603 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 4604 * @phba: pointer to lpfc hba data structure. 4605 * 4606 * This function enables the PCI SR-IOV virtual functions to a physical 4607 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4608 * enable the number of virtual functions to the physical function. As 4609 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4610 * API call does not considered as an error condition for most of the device. 4611 **/ 4612 uint16_t 4613 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 4614 { 4615 struct pci_dev *pdev = phba->pcidev; 4616 uint16_t nr_virtfn; 4617 int pos; 4618 4619 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 4620 if (pos == 0) 4621 return 0; 4622 4623 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 4624 return nr_virtfn; 4625 } 4626 4627 /** 4628 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 4629 * @phba: pointer to lpfc hba data structure. 4630 * @nr_vfn: number of virtual functions to be enabled. 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 int 4639 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 4640 { 4641 struct pci_dev *pdev = phba->pcidev; 4642 uint16_t max_nr_vfn; 4643 int rc; 4644 4645 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 4646 if (nr_vfn > max_nr_vfn) { 4647 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4648 "3057 Requested vfs (%d) greater than " 4649 "supported vfs (%d)", nr_vfn, max_nr_vfn); 4650 return -EINVAL; 4651 } 4652 4653 rc = pci_enable_sriov(pdev, nr_vfn); 4654 if (rc) { 4655 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4656 "2806 Failed to enable sriov on this device " 4657 "with vfn number nr_vf:%d, rc:%d\n", 4658 nr_vfn, rc); 4659 } else 4660 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4661 "2807 Successful enable sriov on this device " 4662 "with vfn number nr_vf:%d\n", nr_vfn); 4663 return rc; 4664 } 4665 4666 /** 4667 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 4668 * @phba: pointer to lpfc hba data structure. 4669 * 4670 * This routine is invoked to set up the driver internal resources specific to 4671 * support the SLI-3 HBA device it attached to. 4672 * 4673 * Return codes 4674 * 0 - successful 4675 * other values - error 4676 **/ 4677 static int 4678 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 4679 { 4680 struct lpfc_sli *psli; 4681 int rc; 4682 4683 /* 4684 * Initialize timers used by driver 4685 */ 4686 4687 /* Heartbeat timer */ 4688 init_timer(&phba->hb_tmofunc); 4689 phba->hb_tmofunc.function = lpfc_hb_timeout; 4690 phba->hb_tmofunc.data = (unsigned long)phba; 4691 4692 psli = &phba->sli; 4693 /* MBOX heartbeat timer */ 4694 init_timer(&psli->mbox_tmo); 4695 psli->mbox_tmo.function = lpfc_mbox_timeout; 4696 psli->mbox_tmo.data = (unsigned long) phba; 4697 /* FCP polling mode timer */ 4698 init_timer(&phba->fcp_poll_timer); 4699 phba->fcp_poll_timer.function = lpfc_poll_timeout; 4700 phba->fcp_poll_timer.data = (unsigned long) phba; 4701 /* Fabric block timer */ 4702 init_timer(&phba->fabric_block_timer); 4703 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4704 phba->fabric_block_timer.data = (unsigned long) phba; 4705 /* EA polling mode timer */ 4706 init_timer(&phba->eratt_poll); 4707 phba->eratt_poll.function = lpfc_poll_eratt; 4708 phba->eratt_poll.data = (unsigned long) phba; 4709 4710 /* Host attention work mask setup */ 4711 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 4712 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 4713 4714 /* Get all the module params for configuring this host */ 4715 lpfc_get_cfgparam(phba); 4716 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 4717 phba->menlo_flag |= HBA_MENLO_SUPPORT; 4718 /* check for menlo minimum sg count */ 4719 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 4720 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 4721 } 4722 4723 if (!phba->sli.ring) 4724 phba->sli.ring = (struct lpfc_sli_ring *) 4725 kzalloc(LPFC_SLI3_MAX_RING * 4726 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 4727 if (!phba->sli.ring) 4728 return -ENOMEM; 4729 4730 /* 4731 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 4732 * used to create the sg_dma_buf_pool must be dynamically calculated. 4733 */ 4734 4735 /* Initialize the host templates the configured values. */ 4736 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4737 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4738 4739 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ 4740 if (phba->cfg_enable_bg) { 4741 /* 4742 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 4743 * the FCP rsp, and a BDE for each. Sice we have no control 4744 * over how many protection data segments the SCSI Layer 4745 * will hand us (ie: there could be one for every block 4746 * in the IO), we just allocate enough BDEs to accomidate 4747 * our max amount and we need to limit lpfc_sg_seg_cnt to 4748 * minimize the risk of running out. 4749 */ 4750 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4751 sizeof(struct fcp_rsp) + 4752 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64)); 4753 4754 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF) 4755 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF; 4756 4757 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */ 4758 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT; 4759 } else { 4760 /* 4761 * The scsi_buf for a regular I/O will hold the FCP cmnd, 4762 * the FCP rsp, a BDE for each, and a BDE for up to 4763 * cfg_sg_seg_cnt data segments. 4764 */ 4765 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4766 sizeof(struct fcp_rsp) + 4767 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 4768 4769 /* Total BDEs in BPL for scsi_sg_list */ 4770 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 4771 } 4772 4773 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 4774 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n", 4775 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 4776 phba->cfg_total_seg_cnt); 4777 4778 phba->max_vpi = LPFC_MAX_VPI; 4779 /* This will be set to correct value after config_port mbox */ 4780 phba->max_vports = 0; 4781 4782 /* 4783 * Initialize the SLI Layer to run with lpfc HBAs. 4784 */ 4785 lpfc_sli_setup(phba); 4786 lpfc_sli_queue_setup(phba); 4787 4788 /* Allocate device driver memory */ 4789 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 4790 return -ENOMEM; 4791 4792 /* 4793 * Enable sr-iov virtual functions if supported and configured 4794 * through the module parameter. 4795 */ 4796 if (phba->cfg_sriov_nr_virtfn > 0) { 4797 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4798 phba->cfg_sriov_nr_virtfn); 4799 if (rc) { 4800 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4801 "2808 Requested number of SR-IOV " 4802 "virtual functions (%d) is not " 4803 "supported\n", 4804 phba->cfg_sriov_nr_virtfn); 4805 phba->cfg_sriov_nr_virtfn = 0; 4806 } 4807 } 4808 4809 return 0; 4810 } 4811 4812 /** 4813 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 4814 * @phba: pointer to lpfc hba data structure. 4815 * 4816 * This routine is invoked to unset the driver internal resources set up 4817 * specific for supporting the SLI-3 HBA device it attached to. 4818 **/ 4819 static void 4820 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 4821 { 4822 /* Free device driver memory allocated */ 4823 lpfc_mem_free_all(phba); 4824 4825 return; 4826 } 4827 4828 /** 4829 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 4830 * @phba: pointer to lpfc hba data structure. 4831 * 4832 * This routine is invoked to set up the driver internal resources specific to 4833 * support the SLI-4 HBA device it attached to. 4834 * 4835 * Return codes 4836 * 0 - successful 4837 * other values - error 4838 **/ 4839 static int 4840 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 4841 { 4842 struct lpfc_vector_map_info *cpup; 4843 struct lpfc_sli *psli; 4844 LPFC_MBOXQ_t *mboxq; 4845 int rc, i, hbq_count, max_buf_size; 4846 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 4847 struct lpfc_mqe *mqe; 4848 int longs; 4849 4850 /* Before proceed, wait for POST done and device ready */ 4851 rc = lpfc_sli4_post_status_check(phba); 4852 if (rc) 4853 return -ENODEV; 4854 4855 /* 4856 * Initialize timers used by driver 4857 */ 4858 4859 /* Heartbeat timer */ 4860 init_timer(&phba->hb_tmofunc); 4861 phba->hb_tmofunc.function = lpfc_hb_timeout; 4862 phba->hb_tmofunc.data = (unsigned long)phba; 4863 init_timer(&phba->rrq_tmr); 4864 phba->rrq_tmr.function = lpfc_rrq_timeout; 4865 phba->rrq_tmr.data = (unsigned long)phba; 4866 4867 psli = &phba->sli; 4868 /* MBOX heartbeat timer */ 4869 init_timer(&psli->mbox_tmo); 4870 psli->mbox_tmo.function = lpfc_mbox_timeout; 4871 psli->mbox_tmo.data = (unsigned long) phba; 4872 /* Fabric block timer */ 4873 init_timer(&phba->fabric_block_timer); 4874 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4875 phba->fabric_block_timer.data = (unsigned long) phba; 4876 /* EA polling mode timer */ 4877 init_timer(&phba->eratt_poll); 4878 phba->eratt_poll.function = lpfc_poll_eratt; 4879 phba->eratt_poll.data = (unsigned long) phba; 4880 /* FCF rediscover timer */ 4881 init_timer(&phba->fcf.redisc_wait); 4882 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4883 phba->fcf.redisc_wait.data = (unsigned long)phba; 4884 4885 /* 4886 * Control structure for handling external multi-buffer mailbox 4887 * command pass-through. 4888 */ 4889 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 4890 sizeof(struct lpfc_mbox_ext_buf_ctx)); 4891 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 4892 4893 /* 4894 * We need to do a READ_CONFIG mailbox command here before 4895 * calling lpfc_get_cfgparam. For VFs this will report the 4896 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 4897 * All of the resources allocated 4898 * for this Port are tied to these values. 4899 */ 4900 /* Get all the module params for configuring this host */ 4901 lpfc_get_cfgparam(phba); 4902 phba->max_vpi = LPFC_MAX_VPI; 4903 4904 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */ 4905 phba->cfg_fcp_io_channel = phba->cfg_fcp_eq_count; 4906 4907 /* This will be set to correct value after the read_config mbox */ 4908 phba->max_vports = 0; 4909 4910 /* Program the default value of vlan_id and fc_map */ 4911 phba->valid_vlan = 0; 4912 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4913 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4914 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4915 4916 /* 4917 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 4918 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple. 4919 */ 4920 if (!phba->sli.ring) 4921 phba->sli.ring = kzalloc( 4922 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) * 4923 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 4924 if (!phba->sli.ring) 4925 return -ENOMEM; 4926 4927 /* 4928 * It doesn't matter what family our adapter is in, we are 4929 * limited to 2 Pages, 512 SGEs, for our SGL. 4930 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp 4931 */ 4932 max_buf_size = (2 * SLI4_PAGE_SIZE); 4933 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2) 4934 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2; 4935 4936 /* 4937 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 4938 * used to create the sg_dma_buf_pool must be dynamically calculated. 4939 */ 4940 4941 if (phba->cfg_enable_bg) { 4942 /* 4943 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 4944 * the FCP rsp, and a SGE for each. Sice we have no control 4945 * over how many protection data segments the SCSI Layer 4946 * will hand us (ie: there could be one for every block 4947 * in the IO), we just allocate enough SGEs to accomidate 4948 * our max amount and we need to limit lpfc_sg_seg_cnt to 4949 * minimize the risk of running out. 4950 */ 4951 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4952 sizeof(struct fcp_rsp) + max_buf_size; 4953 4954 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ 4955 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; 4956 4957 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF) 4958 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF; 4959 } else { 4960 /* 4961 * The scsi_buf for a regular I/O will hold the FCP cmnd, 4962 * the FCP rsp, a SGE for each, and a SGE for up to 4963 * cfg_sg_seg_cnt data segments. 4964 */ 4965 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4966 sizeof(struct fcp_rsp) + 4967 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)); 4968 4969 /* Total SGEs for scsi_sg_list */ 4970 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 4971 /* 4972 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need 4973 * to post 1 page for the SGL. 4974 */ 4975 } 4976 4977 /* Initialize the host templates with the updated values. */ 4978 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4979 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4980 4981 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) 4982 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; 4983 else 4984 phba->cfg_sg_dma_buf_size = 4985 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); 4986 4987 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 4988 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n", 4989 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 4990 phba->cfg_total_seg_cnt); 4991 4992 /* Initialize buffer queue management fields */ 4993 hbq_count = lpfc_sli_hbq_count(); 4994 for (i = 0; i < hbq_count; ++i) 4995 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4996 INIT_LIST_HEAD(&phba->rb_pend_list); 4997 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4998 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4999 5000 /* 5001 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 5002 */ 5003 /* Initialize the Abort scsi buffer list used by driver */ 5004 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 5005 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 5006 /* This abort list used by worker thread */ 5007 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 5008 5009 /* 5010 * Initialize driver internal slow-path work queues 5011 */ 5012 5013 /* Driver internel slow-path CQ Event pool */ 5014 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 5015 /* Response IOCB work queue list */ 5016 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 5017 /* Asynchronous event CQ Event work queue list */ 5018 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 5019 /* Fast-path XRI aborted CQ Event work queue list */ 5020 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 5021 /* Slow-path XRI aborted CQ Event work queue list */ 5022 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 5023 /* Receive queue CQ Event work queue list */ 5024 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 5025 5026 /* Initialize extent block lists. */ 5027 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 5028 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 5029 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 5030 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 5031 5032 /* Initialize the driver internal SLI layer lists. */ 5033 lpfc_sli_setup(phba); 5034 lpfc_sli_queue_setup(phba); 5035 5036 /* Allocate device driver memory */ 5037 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 5038 if (rc) 5039 return -ENOMEM; 5040 5041 /* IF Type 2 ports get initialized now. */ 5042 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5043 LPFC_SLI_INTF_IF_TYPE_2) { 5044 rc = lpfc_pci_function_reset(phba); 5045 if (unlikely(rc)) 5046 return -ENODEV; 5047 } 5048 5049 /* Create the bootstrap mailbox command */ 5050 rc = lpfc_create_bootstrap_mbox(phba); 5051 if (unlikely(rc)) 5052 goto out_free_mem; 5053 5054 /* Set up the host's endian order with the device. */ 5055 rc = lpfc_setup_endian_order(phba); 5056 if (unlikely(rc)) 5057 goto out_free_bsmbx; 5058 5059 /* Set up the hba's configuration parameters. */ 5060 rc = lpfc_sli4_read_config(phba); 5061 if (unlikely(rc)) 5062 goto out_free_bsmbx; 5063 5064 /* IF Type 0 ports get initialized now. */ 5065 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5066 LPFC_SLI_INTF_IF_TYPE_0) { 5067 rc = lpfc_pci_function_reset(phba); 5068 if (unlikely(rc)) 5069 goto out_free_bsmbx; 5070 } 5071 5072 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 5073 GFP_KERNEL); 5074 if (!mboxq) { 5075 rc = -ENOMEM; 5076 goto out_free_bsmbx; 5077 } 5078 5079 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 5080 lpfc_supported_pages(mboxq); 5081 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5082 if (!rc) { 5083 mqe = &mboxq->u.mqe; 5084 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 5085 LPFC_MAX_SUPPORTED_PAGES); 5086 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 5087 switch (pn_page[i]) { 5088 case LPFC_SLI4_PARAMETERS: 5089 phba->sli4_hba.pc_sli4_params.supported = 1; 5090 break; 5091 default: 5092 break; 5093 } 5094 } 5095 /* Read the port's SLI4 Parameters capabilities if supported. */ 5096 if (phba->sli4_hba.pc_sli4_params.supported) 5097 rc = lpfc_pc_sli4_params_get(phba, mboxq); 5098 if (rc) { 5099 mempool_free(mboxq, phba->mbox_mem_pool); 5100 rc = -EIO; 5101 goto out_free_bsmbx; 5102 } 5103 } 5104 /* 5105 * Get sli4 parameters that override parameters from Port capabilities. 5106 * If this call fails, it isn't critical unless the SLI4 parameters come 5107 * back in conflict. 5108 */ 5109 rc = lpfc_get_sli4_parameters(phba, mboxq); 5110 if (rc) { 5111 if (phba->sli4_hba.extents_in_use && 5112 phba->sli4_hba.rpi_hdrs_in_use) { 5113 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5114 "2999 Unsupported SLI4 Parameters " 5115 "Extents and RPI headers enabled.\n"); 5116 goto out_free_bsmbx; 5117 } 5118 } 5119 mempool_free(mboxq, phba->mbox_mem_pool); 5120 /* Verify all the SLI4 queues */ 5121 rc = lpfc_sli4_queue_verify(phba); 5122 if (rc) 5123 goto out_free_bsmbx; 5124 5125 /* Create driver internal CQE event pool */ 5126 rc = lpfc_sli4_cq_event_pool_create(phba); 5127 if (rc) 5128 goto out_free_bsmbx; 5129 5130 /* Initialize sgl lists per host */ 5131 lpfc_init_sgl_list(phba); 5132 5133 /* Allocate and initialize active sgl array */ 5134 rc = lpfc_init_active_sgl_array(phba); 5135 if (rc) { 5136 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5137 "1430 Failed to initialize sgl list.\n"); 5138 goto out_destroy_cq_event_pool; 5139 } 5140 rc = lpfc_sli4_init_rpi_hdrs(phba); 5141 if (rc) { 5142 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5143 "1432 Failed to initialize rpi headers.\n"); 5144 goto out_free_active_sgl; 5145 } 5146 5147 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 5148 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 5149 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 5150 GFP_KERNEL); 5151 if (!phba->fcf.fcf_rr_bmask) { 5152 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5153 "2759 Failed allocate memory for FCF round " 5154 "robin failover bmask\n"); 5155 rc = -ENOMEM; 5156 goto out_remove_rpi_hdrs; 5157 } 5158 5159 phba->sli4_hba.fcp_eq_hdl = 5160 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 5161 phba->cfg_fcp_io_channel), GFP_KERNEL); 5162 if (!phba->sli4_hba.fcp_eq_hdl) { 5163 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5164 "2572 Failed allocate memory for " 5165 "fast-path per-EQ handle array\n"); 5166 rc = -ENOMEM; 5167 goto out_free_fcf_rr_bmask; 5168 } 5169 5170 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 5171 phba->cfg_fcp_io_channel), GFP_KERNEL); 5172 if (!phba->sli4_hba.msix_entries) { 5173 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5174 "2573 Failed allocate memory for msi-x " 5175 "interrupt vector entries\n"); 5176 rc = -ENOMEM; 5177 goto out_free_fcp_eq_hdl; 5178 } 5179 5180 phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) * 5181 phba->sli4_hba.num_present_cpu), 5182 GFP_KERNEL); 5183 if (!phba->sli4_hba.cpu_map) { 5184 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5185 "3327 Failed allocate memory for msi-x " 5186 "interrupt vector mapping\n"); 5187 rc = -ENOMEM; 5188 goto out_free_msix; 5189 } 5190 if (lpfc_used_cpu == NULL) { 5191 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu), 5192 GFP_KERNEL); 5193 if (!lpfc_used_cpu) { 5194 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5195 "3335 Failed allocate memory for msi-x " 5196 "interrupt vector mapping\n"); 5197 kfree(phba->sli4_hba.cpu_map); 5198 rc = -ENOMEM; 5199 goto out_free_msix; 5200 } 5201 for (i = 0; i < lpfc_present_cpu; i++) 5202 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY; 5203 } 5204 5205 /* Initialize io channels for round robin */ 5206 cpup = phba->sli4_hba.cpu_map; 5207 rc = 0; 5208 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 5209 cpup->channel_id = rc; 5210 rc++; 5211 if (rc >= phba->cfg_fcp_io_channel) 5212 rc = 0; 5213 } 5214 5215 /* 5216 * Enable sr-iov virtual functions if supported and configured 5217 * through the module parameter. 5218 */ 5219 if (phba->cfg_sriov_nr_virtfn > 0) { 5220 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5221 phba->cfg_sriov_nr_virtfn); 5222 if (rc) { 5223 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5224 "3020 Requested number of SR-IOV " 5225 "virtual functions (%d) is not " 5226 "supported\n", 5227 phba->cfg_sriov_nr_virtfn); 5228 phba->cfg_sriov_nr_virtfn = 0; 5229 } 5230 } 5231 5232 return 0; 5233 5234 out_free_msix: 5235 kfree(phba->sli4_hba.msix_entries); 5236 out_free_fcp_eq_hdl: 5237 kfree(phba->sli4_hba.fcp_eq_hdl); 5238 out_free_fcf_rr_bmask: 5239 kfree(phba->fcf.fcf_rr_bmask); 5240 out_remove_rpi_hdrs: 5241 lpfc_sli4_remove_rpi_hdrs(phba); 5242 out_free_active_sgl: 5243 lpfc_free_active_sgl(phba); 5244 out_destroy_cq_event_pool: 5245 lpfc_sli4_cq_event_pool_destroy(phba); 5246 out_free_bsmbx: 5247 lpfc_destroy_bootstrap_mbox(phba); 5248 out_free_mem: 5249 lpfc_mem_free(phba); 5250 return rc; 5251 } 5252 5253 /** 5254 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 5255 * @phba: pointer to lpfc hba data structure. 5256 * 5257 * This routine is invoked to unset the driver internal resources set up 5258 * specific for supporting the SLI-4 HBA device it attached to. 5259 **/ 5260 static void 5261 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 5262 { 5263 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 5264 5265 /* Free memory allocated for msi-x interrupt vector to CPU mapping */ 5266 kfree(phba->sli4_hba.cpu_map); 5267 phba->sli4_hba.num_present_cpu = 0; 5268 phba->sli4_hba.num_online_cpu = 0; 5269 5270 /* Free memory allocated for msi-x interrupt vector entries */ 5271 kfree(phba->sli4_hba.msix_entries); 5272 5273 /* Free memory allocated for fast-path work queue handles */ 5274 kfree(phba->sli4_hba.fcp_eq_hdl); 5275 5276 /* Free the allocated rpi headers. */ 5277 lpfc_sli4_remove_rpi_hdrs(phba); 5278 lpfc_sli4_remove_rpis(phba); 5279 5280 /* Free eligible FCF index bmask */ 5281 kfree(phba->fcf.fcf_rr_bmask); 5282 5283 /* Free the ELS sgl list */ 5284 lpfc_free_active_sgl(phba); 5285 lpfc_free_els_sgl_list(phba); 5286 5287 /* Free the completion queue EQ event pool */ 5288 lpfc_sli4_cq_event_release_all(phba); 5289 lpfc_sli4_cq_event_pool_destroy(phba); 5290 5291 /* Release resource identifiers. */ 5292 lpfc_sli4_dealloc_resource_identifiers(phba); 5293 5294 /* Free the bsmbx region. */ 5295 lpfc_destroy_bootstrap_mbox(phba); 5296 5297 /* Free the SLI Layer memory with SLI4 HBAs */ 5298 lpfc_mem_free_all(phba); 5299 5300 /* Free the current connect table */ 5301 list_for_each_entry_safe(conn_entry, next_conn_entry, 5302 &phba->fcf_conn_rec_list, list) { 5303 list_del_init(&conn_entry->list); 5304 kfree(conn_entry); 5305 } 5306 5307 return; 5308 } 5309 5310 /** 5311 * lpfc_init_api_table_setup - Set up init api function jump table 5312 * @phba: The hba struct for which this call is being executed. 5313 * @dev_grp: The HBA PCI-Device group number. 5314 * 5315 * This routine sets up the device INIT interface API function jump table 5316 * in @phba struct. 5317 * 5318 * Returns: 0 - success, -ENODEV - failure. 5319 **/ 5320 int 5321 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5322 { 5323 phba->lpfc_hba_init_link = lpfc_hba_init_link; 5324 phba->lpfc_hba_down_link = lpfc_hba_down_link; 5325 phba->lpfc_selective_reset = lpfc_selective_reset; 5326 switch (dev_grp) { 5327 case LPFC_PCI_DEV_LP: 5328 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 5329 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 5330 phba->lpfc_stop_port = lpfc_stop_port_s3; 5331 break; 5332 case LPFC_PCI_DEV_OC: 5333 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 5334 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 5335 phba->lpfc_stop_port = lpfc_stop_port_s4; 5336 break; 5337 default: 5338 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5339 "1431 Invalid HBA PCI-device group: 0x%x\n", 5340 dev_grp); 5341 return -ENODEV; 5342 break; 5343 } 5344 return 0; 5345 } 5346 5347 /** 5348 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5349 * @phba: pointer to lpfc hba data structure. 5350 * 5351 * This routine is invoked to set up the driver internal resources before the 5352 * device specific resource setup to support the HBA device it attached to. 5353 * 5354 * Return codes 5355 * 0 - successful 5356 * other values - error 5357 **/ 5358 static int 5359 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5360 { 5361 /* 5362 * Driver resources common to all SLI revisions 5363 */ 5364 atomic_set(&phba->fast_event_count, 0); 5365 spin_lock_init(&phba->hbalock); 5366 5367 /* Initialize ndlp management spinlock */ 5368 spin_lock_init(&phba->ndlp_lock); 5369 5370 INIT_LIST_HEAD(&phba->port_list); 5371 INIT_LIST_HEAD(&phba->work_list); 5372 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5373 5374 /* Initialize the wait queue head for the kernel thread */ 5375 init_waitqueue_head(&phba->work_waitq); 5376 5377 /* Initialize the scsi buffer list used by driver for scsi IO */ 5378 spin_lock_init(&phba->scsi_buf_list_get_lock); 5379 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); 5380 spin_lock_init(&phba->scsi_buf_list_put_lock); 5381 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 5382 5383 /* Initialize the fabric iocb list */ 5384 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5385 5386 /* Initialize list to save ELS buffers */ 5387 INIT_LIST_HEAD(&phba->elsbuf); 5388 5389 /* Initialize FCF connection rec list */ 5390 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5391 5392 return 0; 5393 } 5394 5395 /** 5396 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 5397 * @phba: pointer to lpfc hba data structure. 5398 * 5399 * This routine is invoked to set up the driver internal resources after the 5400 * device specific resource setup to support the HBA device it attached to. 5401 * 5402 * Return codes 5403 * 0 - successful 5404 * other values - error 5405 **/ 5406 static int 5407 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 5408 { 5409 int error; 5410 5411 /* Startup the kernel thread for this host adapter. */ 5412 phba->worker_thread = kthread_run(lpfc_do_work, phba, 5413 "lpfc_worker_%d", phba->brd_no); 5414 if (IS_ERR(phba->worker_thread)) { 5415 error = PTR_ERR(phba->worker_thread); 5416 return error; 5417 } 5418 5419 return 0; 5420 } 5421 5422 /** 5423 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 5424 * @phba: pointer to lpfc hba data structure. 5425 * 5426 * This routine is invoked to unset the driver internal resources set up after 5427 * the device specific resource setup for supporting the HBA device it 5428 * attached to. 5429 **/ 5430 static void 5431 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 5432 { 5433 /* Stop kernel worker thread */ 5434 kthread_stop(phba->worker_thread); 5435 } 5436 5437 /** 5438 * lpfc_free_iocb_list - Free iocb list. 5439 * @phba: pointer to lpfc hba data structure. 5440 * 5441 * This routine is invoked to free the driver's IOCB list and memory. 5442 **/ 5443 static void 5444 lpfc_free_iocb_list(struct lpfc_hba *phba) 5445 { 5446 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 5447 5448 spin_lock_irq(&phba->hbalock); 5449 list_for_each_entry_safe(iocbq_entry, iocbq_next, 5450 &phba->lpfc_iocb_list, list) { 5451 list_del(&iocbq_entry->list); 5452 kfree(iocbq_entry); 5453 phba->total_iocbq_bufs--; 5454 } 5455 spin_unlock_irq(&phba->hbalock); 5456 5457 return; 5458 } 5459 5460 /** 5461 * lpfc_init_iocb_list - Allocate and initialize iocb list. 5462 * @phba: pointer to lpfc hba data structure. 5463 * 5464 * This routine is invoked to allocate and initizlize the driver's IOCB 5465 * list and set up the IOCB tag array accordingly. 5466 * 5467 * Return codes 5468 * 0 - successful 5469 * other values - error 5470 **/ 5471 static int 5472 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 5473 { 5474 struct lpfc_iocbq *iocbq_entry = NULL; 5475 uint16_t iotag; 5476 int i; 5477 5478 /* Initialize and populate the iocb list per host. */ 5479 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 5480 for (i = 0; i < iocb_count; i++) { 5481 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 5482 if (iocbq_entry == NULL) { 5483 printk(KERN_ERR "%s: only allocated %d iocbs of " 5484 "expected %d count. Unloading driver.\n", 5485 __func__, i, LPFC_IOCB_LIST_CNT); 5486 goto out_free_iocbq; 5487 } 5488 5489 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 5490 if (iotag == 0) { 5491 kfree(iocbq_entry); 5492 printk(KERN_ERR "%s: failed to allocate IOTAG. " 5493 "Unloading driver.\n", __func__); 5494 goto out_free_iocbq; 5495 } 5496 iocbq_entry->sli4_lxritag = NO_XRI; 5497 iocbq_entry->sli4_xritag = NO_XRI; 5498 5499 spin_lock_irq(&phba->hbalock); 5500 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 5501 phba->total_iocbq_bufs++; 5502 spin_unlock_irq(&phba->hbalock); 5503 } 5504 5505 return 0; 5506 5507 out_free_iocbq: 5508 lpfc_free_iocb_list(phba); 5509 5510 return -ENOMEM; 5511 } 5512 5513 /** 5514 * lpfc_free_sgl_list - Free a given sgl list. 5515 * @phba: pointer to lpfc hba data structure. 5516 * @sglq_list: pointer to the head of sgl list. 5517 * 5518 * This routine is invoked to free a give sgl list and memory. 5519 **/ 5520 void 5521 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 5522 { 5523 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 5524 5525 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 5526 list_del(&sglq_entry->list); 5527 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 5528 kfree(sglq_entry); 5529 } 5530 } 5531 5532 /** 5533 * lpfc_free_els_sgl_list - Free els sgl list. 5534 * @phba: pointer to lpfc hba data structure. 5535 * 5536 * This routine is invoked to free the driver's els sgl list and memory. 5537 **/ 5538 static void 5539 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 5540 { 5541 LIST_HEAD(sglq_list); 5542 5543 /* Retrieve all els sgls from driver list */ 5544 spin_lock_irq(&phba->hbalock); 5545 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 5546 spin_unlock_irq(&phba->hbalock); 5547 5548 /* Now free the sgl list */ 5549 lpfc_free_sgl_list(phba, &sglq_list); 5550 } 5551 5552 /** 5553 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 5554 * @phba: pointer to lpfc hba data structure. 5555 * 5556 * This routine is invoked to allocate the driver's active sgl memory. 5557 * This array will hold the sglq_entry's for active IOs. 5558 **/ 5559 static int 5560 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 5561 { 5562 int size; 5563 size = sizeof(struct lpfc_sglq *); 5564 size *= phba->sli4_hba.max_cfg_param.max_xri; 5565 5566 phba->sli4_hba.lpfc_sglq_active_list = 5567 kzalloc(size, GFP_KERNEL); 5568 if (!phba->sli4_hba.lpfc_sglq_active_list) 5569 return -ENOMEM; 5570 return 0; 5571 } 5572 5573 /** 5574 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 5575 * @phba: pointer to lpfc hba data structure. 5576 * 5577 * This routine is invoked to walk through the array of active sglq entries 5578 * and free all of the resources. 5579 * This is just a place holder for now. 5580 **/ 5581 static void 5582 lpfc_free_active_sgl(struct lpfc_hba *phba) 5583 { 5584 kfree(phba->sli4_hba.lpfc_sglq_active_list); 5585 } 5586 5587 /** 5588 * lpfc_init_sgl_list - Allocate and initialize sgl list. 5589 * @phba: pointer to lpfc hba data structure. 5590 * 5591 * This routine is invoked to allocate and initizlize the driver's sgl 5592 * list and set up the sgl xritag tag array accordingly. 5593 * 5594 **/ 5595 static void 5596 lpfc_init_sgl_list(struct lpfc_hba *phba) 5597 { 5598 /* Initialize and populate the sglq list per host/VF. */ 5599 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 5600 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 5601 5602 /* els xri-sgl book keeping */ 5603 phba->sli4_hba.els_xri_cnt = 0; 5604 5605 /* scsi xri-buffer book keeping */ 5606 phba->sli4_hba.scsi_xri_cnt = 0; 5607 } 5608 5609 /** 5610 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 5611 * @phba: pointer to lpfc hba data structure. 5612 * 5613 * This routine is invoked to post rpi header templates to the 5614 * port for those SLI4 ports that do not support extents. This routine 5615 * posts a PAGE_SIZE memory region to the port to hold up to 5616 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 5617 * and should be called only when interrupts are disabled. 5618 * 5619 * Return codes 5620 * 0 - successful 5621 * -ERROR - otherwise. 5622 **/ 5623 int 5624 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 5625 { 5626 int rc = 0; 5627 struct lpfc_rpi_hdr *rpi_hdr; 5628 5629 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 5630 if (!phba->sli4_hba.rpi_hdrs_in_use) 5631 return rc; 5632 if (phba->sli4_hba.extents_in_use) 5633 return -EIO; 5634 5635 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 5636 if (!rpi_hdr) { 5637 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 5638 "0391 Error during rpi post operation\n"); 5639 lpfc_sli4_remove_rpis(phba); 5640 rc = -ENODEV; 5641 } 5642 5643 return rc; 5644 } 5645 5646 /** 5647 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 5648 * @phba: pointer to lpfc hba data structure. 5649 * 5650 * This routine is invoked to allocate a single 4KB memory region to 5651 * support rpis and stores them in the phba. This single region 5652 * provides support for up to 64 rpis. The region is used globally 5653 * by the device. 5654 * 5655 * Returns: 5656 * A valid rpi hdr on success. 5657 * A NULL pointer on any failure. 5658 **/ 5659 struct lpfc_rpi_hdr * 5660 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 5661 { 5662 uint16_t rpi_limit, curr_rpi_range; 5663 struct lpfc_dmabuf *dmabuf; 5664 struct lpfc_rpi_hdr *rpi_hdr; 5665 uint32_t rpi_count; 5666 5667 /* 5668 * If the SLI4 port supports extents, posting the rpi header isn't 5669 * required. Set the expected maximum count and let the actual value 5670 * get set when extents are fully allocated. 5671 */ 5672 if (!phba->sli4_hba.rpi_hdrs_in_use) 5673 return NULL; 5674 if (phba->sli4_hba.extents_in_use) 5675 return NULL; 5676 5677 /* The limit on the logical index is just the max_rpi count. */ 5678 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 5679 phba->sli4_hba.max_cfg_param.max_rpi - 1; 5680 5681 spin_lock_irq(&phba->hbalock); 5682 /* 5683 * Establish the starting RPI in this header block. The starting 5684 * rpi is normalized to a zero base because the physical rpi is 5685 * port based. 5686 */ 5687 curr_rpi_range = phba->sli4_hba.next_rpi; 5688 spin_unlock_irq(&phba->hbalock); 5689 5690 /* 5691 * The port has a limited number of rpis. The increment here 5692 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 5693 * and to allow the full max_rpi range per port. 5694 */ 5695 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 5696 rpi_count = rpi_limit - curr_rpi_range; 5697 else 5698 rpi_count = LPFC_RPI_HDR_COUNT; 5699 5700 if (!rpi_count) 5701 return NULL; 5702 /* 5703 * First allocate the protocol header region for the port. The 5704 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 5705 */ 5706 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5707 if (!dmabuf) 5708 return NULL; 5709 5710 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5711 LPFC_HDR_TEMPLATE_SIZE, 5712 &dmabuf->phys, 5713 GFP_KERNEL); 5714 if (!dmabuf->virt) { 5715 rpi_hdr = NULL; 5716 goto err_free_dmabuf; 5717 } 5718 5719 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 5720 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 5721 rpi_hdr = NULL; 5722 goto err_free_coherent; 5723 } 5724 5725 /* Save the rpi header data for cleanup later. */ 5726 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 5727 if (!rpi_hdr) 5728 goto err_free_coherent; 5729 5730 rpi_hdr->dmabuf = dmabuf; 5731 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 5732 rpi_hdr->page_count = 1; 5733 spin_lock_irq(&phba->hbalock); 5734 5735 /* The rpi_hdr stores the logical index only. */ 5736 rpi_hdr->start_rpi = curr_rpi_range; 5737 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 5738 5739 /* 5740 * The next_rpi stores the next logical module-64 rpi value used 5741 * to post physical rpis in subsequent rpi postings. 5742 */ 5743 phba->sli4_hba.next_rpi += rpi_count; 5744 spin_unlock_irq(&phba->hbalock); 5745 return rpi_hdr; 5746 5747 err_free_coherent: 5748 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 5749 dmabuf->virt, dmabuf->phys); 5750 err_free_dmabuf: 5751 kfree(dmabuf); 5752 return NULL; 5753 } 5754 5755 /** 5756 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 5757 * @phba: pointer to lpfc hba data structure. 5758 * 5759 * This routine is invoked to remove all memory resources allocated 5760 * to support rpis for SLI4 ports not supporting extents. This routine 5761 * presumes the caller has released all rpis consumed by fabric or port 5762 * logins and is prepared to have the header pages removed. 5763 **/ 5764 void 5765 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 5766 { 5767 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 5768 5769 if (!phba->sli4_hba.rpi_hdrs_in_use) 5770 goto exit; 5771 5772 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 5773 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 5774 list_del(&rpi_hdr->list); 5775 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 5776 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 5777 kfree(rpi_hdr->dmabuf); 5778 kfree(rpi_hdr); 5779 } 5780 exit: 5781 /* There are no rpis available to the port now. */ 5782 phba->sli4_hba.next_rpi = 0; 5783 } 5784 5785 /** 5786 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 5787 * @pdev: pointer to pci device data structure. 5788 * 5789 * This routine is invoked to allocate the driver hba data structure for an 5790 * HBA device. If the allocation is successful, the phba reference to the 5791 * PCI device data structure is set. 5792 * 5793 * Return codes 5794 * pointer to @phba - successful 5795 * NULL - error 5796 **/ 5797 static struct lpfc_hba * 5798 lpfc_hba_alloc(struct pci_dev *pdev) 5799 { 5800 struct lpfc_hba *phba; 5801 5802 /* Allocate memory for HBA structure */ 5803 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 5804 if (!phba) { 5805 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 5806 return NULL; 5807 } 5808 5809 /* Set reference to PCI device in HBA structure */ 5810 phba->pcidev = pdev; 5811 5812 /* Assign an unused board number */ 5813 phba->brd_no = lpfc_get_instance(); 5814 if (phba->brd_no < 0) { 5815 kfree(phba); 5816 return NULL; 5817 } 5818 5819 spin_lock_init(&phba->ct_ev_lock); 5820 INIT_LIST_HEAD(&phba->ct_ev_waiters); 5821 5822 return phba; 5823 } 5824 5825 /** 5826 * lpfc_hba_free - Free driver hba data structure with a device. 5827 * @phba: pointer to lpfc hba data structure. 5828 * 5829 * This routine is invoked to free the driver hba data structure with an 5830 * HBA device. 5831 **/ 5832 static void 5833 lpfc_hba_free(struct lpfc_hba *phba) 5834 { 5835 /* Release the driver assigned board number */ 5836 idr_remove(&lpfc_hba_index, phba->brd_no); 5837 5838 /* Free memory allocated with sli rings */ 5839 kfree(phba->sli.ring); 5840 phba->sli.ring = NULL; 5841 5842 kfree(phba); 5843 return; 5844 } 5845 5846 /** 5847 * lpfc_create_shost - Create hba physical port with associated scsi host. 5848 * @phba: pointer to lpfc hba data structure. 5849 * 5850 * This routine is invoked to create HBA physical port and associate a SCSI 5851 * host with it. 5852 * 5853 * Return codes 5854 * 0 - successful 5855 * other values - error 5856 **/ 5857 static int 5858 lpfc_create_shost(struct lpfc_hba *phba) 5859 { 5860 struct lpfc_vport *vport; 5861 struct Scsi_Host *shost; 5862 5863 /* Initialize HBA FC structure */ 5864 phba->fc_edtov = FF_DEF_EDTOV; 5865 phba->fc_ratov = FF_DEF_RATOV; 5866 phba->fc_altov = FF_DEF_ALTOV; 5867 phba->fc_arbtov = FF_DEF_ARBTOV; 5868 5869 atomic_set(&phba->sdev_cnt, 0); 5870 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 5871 if (!vport) 5872 return -ENODEV; 5873 5874 shost = lpfc_shost_from_vport(vport); 5875 phba->pport = vport; 5876 lpfc_debugfs_initialize(vport); 5877 /* Put reference to SCSI host to driver's device private data */ 5878 pci_set_drvdata(phba->pcidev, shost); 5879 5880 return 0; 5881 } 5882 5883 /** 5884 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 5885 * @phba: pointer to lpfc hba data structure. 5886 * 5887 * This routine is invoked to destroy HBA physical port and the associated 5888 * SCSI host. 5889 **/ 5890 static void 5891 lpfc_destroy_shost(struct lpfc_hba *phba) 5892 { 5893 struct lpfc_vport *vport = phba->pport; 5894 5895 /* Destroy physical port that associated with the SCSI host */ 5896 destroy_port(vport); 5897 5898 return; 5899 } 5900 5901 /** 5902 * lpfc_setup_bg - Setup Block guard structures and debug areas. 5903 * @phba: pointer to lpfc hba data structure. 5904 * @shost: the shost to be used to detect Block guard settings. 5905 * 5906 * This routine sets up the local Block guard protocol settings for @shost. 5907 * This routine also allocates memory for debugging bg buffers. 5908 **/ 5909 static void 5910 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 5911 { 5912 uint32_t old_mask; 5913 uint32_t old_guard; 5914 5915 int pagecnt = 10; 5916 if (lpfc_prot_mask && lpfc_prot_guard) { 5917 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5918 "1478 Registering BlockGuard with the " 5919 "SCSI layer\n"); 5920 5921 old_mask = lpfc_prot_mask; 5922 old_guard = lpfc_prot_guard; 5923 5924 /* Only allow supported values */ 5925 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 5926 SHOST_DIX_TYPE0_PROTECTION | 5927 SHOST_DIX_TYPE1_PROTECTION); 5928 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC); 5929 5930 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 5931 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 5932 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 5933 5934 if (lpfc_prot_mask && lpfc_prot_guard) { 5935 if ((old_mask != lpfc_prot_mask) || 5936 (old_guard != lpfc_prot_guard)) 5937 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5938 "1475 Registering BlockGuard with the " 5939 "SCSI layer: mask %d guard %d\n", 5940 lpfc_prot_mask, lpfc_prot_guard); 5941 5942 scsi_host_set_prot(shost, lpfc_prot_mask); 5943 scsi_host_set_guard(shost, lpfc_prot_guard); 5944 } else 5945 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5946 "1479 Not Registering BlockGuard with the SCSI " 5947 "layer, Bad protection parameters: %d %d\n", 5948 old_mask, old_guard); 5949 } 5950 5951 if (!_dump_buf_data) { 5952 while (pagecnt) { 5953 spin_lock_init(&_dump_buf_lock); 5954 _dump_buf_data = 5955 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5956 if (_dump_buf_data) { 5957 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5958 "9043 BLKGRD: allocated %d pages for " 5959 "_dump_buf_data at 0x%p\n", 5960 (1 << pagecnt), _dump_buf_data); 5961 _dump_buf_data_order = pagecnt; 5962 memset(_dump_buf_data, 0, 5963 ((1 << PAGE_SHIFT) << pagecnt)); 5964 break; 5965 } else 5966 --pagecnt; 5967 } 5968 if (!_dump_buf_data_order) 5969 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5970 "9044 BLKGRD: ERROR unable to allocate " 5971 "memory for hexdump\n"); 5972 } else 5973 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5974 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 5975 "\n", _dump_buf_data); 5976 if (!_dump_buf_dif) { 5977 while (pagecnt) { 5978 _dump_buf_dif = 5979 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5980 if (_dump_buf_dif) { 5981 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5982 "9046 BLKGRD: allocated %d pages for " 5983 "_dump_buf_dif at 0x%p\n", 5984 (1 << pagecnt), _dump_buf_dif); 5985 _dump_buf_dif_order = pagecnt; 5986 memset(_dump_buf_dif, 0, 5987 ((1 << PAGE_SHIFT) << pagecnt)); 5988 break; 5989 } else 5990 --pagecnt; 5991 } 5992 if (!_dump_buf_dif_order) 5993 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5994 "9047 BLKGRD: ERROR unable to allocate " 5995 "memory for hexdump\n"); 5996 } else 5997 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5998 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 5999 _dump_buf_dif); 6000 } 6001 6002 /** 6003 * lpfc_post_init_setup - Perform necessary device post initialization setup. 6004 * @phba: pointer to lpfc hba data structure. 6005 * 6006 * This routine is invoked to perform all the necessary post initialization 6007 * setup for the device. 6008 **/ 6009 static void 6010 lpfc_post_init_setup(struct lpfc_hba *phba) 6011 { 6012 struct Scsi_Host *shost; 6013 struct lpfc_adapter_event_header adapter_event; 6014 6015 /* Get the default values for Model Name and Description */ 6016 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 6017 6018 /* 6019 * hba setup may have changed the hba_queue_depth so we need to 6020 * adjust the value of can_queue. 6021 */ 6022 shost = pci_get_drvdata(phba->pcidev); 6023 shost->can_queue = phba->cfg_hba_queue_depth - 10; 6024 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 6025 lpfc_setup_bg(phba, shost); 6026 6027 lpfc_host_attrib_init(shost); 6028 6029 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 6030 spin_lock_irq(shost->host_lock); 6031 lpfc_poll_start_timer(phba); 6032 spin_unlock_irq(shost->host_lock); 6033 } 6034 6035 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6036 "0428 Perform SCSI scan\n"); 6037 /* Send board arrival event to upper layer */ 6038 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 6039 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 6040 fc_host_post_vendor_event(shost, fc_get_event_number(), 6041 sizeof(adapter_event), 6042 (char *) &adapter_event, 6043 LPFC_NL_VENDOR_ID); 6044 return; 6045 } 6046 6047 /** 6048 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 6049 * @phba: pointer to lpfc hba data structure. 6050 * 6051 * This routine is invoked to set up the PCI device memory space for device 6052 * with SLI-3 interface spec. 6053 * 6054 * Return codes 6055 * 0 - successful 6056 * other values - error 6057 **/ 6058 static int 6059 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 6060 { 6061 struct pci_dev *pdev; 6062 unsigned long bar0map_len, bar2map_len; 6063 int i, hbq_count; 6064 void *ptr; 6065 int error = -ENODEV; 6066 6067 /* Obtain PCI device reference */ 6068 if (!phba->pcidev) 6069 return error; 6070 else 6071 pdev = phba->pcidev; 6072 6073 /* Set the device DMA mask size */ 6074 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6075 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6076 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6077 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6078 return error; 6079 } 6080 } 6081 6082 /* Get the bus address of Bar0 and Bar2 and the number of bytes 6083 * required by each mapping. 6084 */ 6085 phba->pci_bar0_map = pci_resource_start(pdev, 0); 6086 bar0map_len = pci_resource_len(pdev, 0); 6087 6088 phba->pci_bar2_map = pci_resource_start(pdev, 2); 6089 bar2map_len = pci_resource_len(pdev, 2); 6090 6091 /* Map HBA SLIM to a kernel virtual address. */ 6092 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 6093 if (!phba->slim_memmap_p) { 6094 dev_printk(KERN_ERR, &pdev->dev, 6095 "ioremap failed for SLIM memory.\n"); 6096 goto out; 6097 } 6098 6099 /* Map HBA Control Registers to a kernel virtual address. */ 6100 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 6101 if (!phba->ctrl_regs_memmap_p) { 6102 dev_printk(KERN_ERR, &pdev->dev, 6103 "ioremap failed for HBA control registers.\n"); 6104 goto out_iounmap_slim; 6105 } 6106 6107 /* Allocate memory for SLI-2 structures */ 6108 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 6109 SLI2_SLIM_SIZE, 6110 &phba->slim2p.phys, 6111 GFP_KERNEL); 6112 if (!phba->slim2p.virt) 6113 goto out_iounmap; 6114 6115 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 6116 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 6117 phba->mbox_ext = (phba->slim2p.virt + 6118 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 6119 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 6120 phba->IOCBs = (phba->slim2p.virt + 6121 offsetof(struct lpfc_sli2_slim, IOCBs)); 6122 6123 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 6124 lpfc_sli_hbq_size(), 6125 &phba->hbqslimp.phys, 6126 GFP_KERNEL); 6127 if (!phba->hbqslimp.virt) 6128 goto out_free_slim; 6129 6130 hbq_count = lpfc_sli_hbq_count(); 6131 ptr = phba->hbqslimp.virt; 6132 for (i = 0; i < hbq_count; ++i) { 6133 phba->hbqs[i].hbq_virt = ptr; 6134 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 6135 ptr += (lpfc_hbq_defs[i]->entry_count * 6136 sizeof(struct lpfc_hbq_entry)); 6137 } 6138 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 6139 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 6140 6141 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 6142 6143 INIT_LIST_HEAD(&phba->rb_pend_list); 6144 6145 phba->MBslimaddr = phba->slim_memmap_p; 6146 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 6147 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 6148 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 6149 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 6150 6151 return 0; 6152 6153 out_free_slim: 6154 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6155 phba->slim2p.virt, phba->slim2p.phys); 6156 out_iounmap: 6157 iounmap(phba->ctrl_regs_memmap_p); 6158 out_iounmap_slim: 6159 iounmap(phba->slim_memmap_p); 6160 out: 6161 return error; 6162 } 6163 6164 /** 6165 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 6166 * @phba: pointer to lpfc hba data structure. 6167 * 6168 * This routine is invoked to unset the PCI device memory space for device 6169 * with SLI-3 interface spec. 6170 **/ 6171 static void 6172 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 6173 { 6174 struct pci_dev *pdev; 6175 6176 /* Obtain PCI device reference */ 6177 if (!phba->pcidev) 6178 return; 6179 else 6180 pdev = phba->pcidev; 6181 6182 /* Free coherent DMA memory allocated */ 6183 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 6184 phba->hbqslimp.virt, phba->hbqslimp.phys); 6185 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6186 phba->slim2p.virt, phba->slim2p.phys); 6187 6188 /* I/O memory unmap */ 6189 iounmap(phba->ctrl_regs_memmap_p); 6190 iounmap(phba->slim_memmap_p); 6191 6192 return; 6193 } 6194 6195 /** 6196 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 6197 * @phba: pointer to lpfc hba data structure. 6198 * 6199 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 6200 * done and check status. 6201 * 6202 * Return 0 if successful, otherwise -ENODEV. 6203 **/ 6204 int 6205 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 6206 { 6207 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 6208 struct lpfc_register reg_data; 6209 int i, port_error = 0; 6210 uint32_t if_type; 6211 6212 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 6213 memset(®_data, 0, sizeof(reg_data)); 6214 if (!phba->sli4_hba.PSMPHRregaddr) 6215 return -ENODEV; 6216 6217 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 6218 for (i = 0; i < 3000; i++) { 6219 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 6220 &portsmphr_reg.word0) || 6221 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 6222 /* Port has a fatal POST error, break out */ 6223 port_error = -ENODEV; 6224 break; 6225 } 6226 if (LPFC_POST_STAGE_PORT_READY == 6227 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 6228 break; 6229 msleep(10); 6230 } 6231 6232 /* 6233 * If there was a port error during POST, then don't proceed with 6234 * other register reads as the data may not be valid. Just exit. 6235 */ 6236 if (port_error) { 6237 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6238 "1408 Port Failed POST - portsmphr=0x%x, " 6239 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 6240 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 6241 portsmphr_reg.word0, 6242 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 6243 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 6244 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 6245 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 6246 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 6247 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 6248 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 6249 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 6250 } else { 6251 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6252 "2534 Device Info: SLIFamily=0x%x, " 6253 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 6254 "SLIHint_2=0x%x, FT=0x%x\n", 6255 bf_get(lpfc_sli_intf_sli_family, 6256 &phba->sli4_hba.sli_intf), 6257 bf_get(lpfc_sli_intf_slirev, 6258 &phba->sli4_hba.sli_intf), 6259 bf_get(lpfc_sli_intf_if_type, 6260 &phba->sli4_hba.sli_intf), 6261 bf_get(lpfc_sli_intf_sli_hint1, 6262 &phba->sli4_hba.sli_intf), 6263 bf_get(lpfc_sli_intf_sli_hint2, 6264 &phba->sli4_hba.sli_intf), 6265 bf_get(lpfc_sli_intf_func_type, 6266 &phba->sli4_hba.sli_intf)); 6267 /* 6268 * Check for other Port errors during the initialization 6269 * process. Fail the load if the port did not come up 6270 * correctly. 6271 */ 6272 if_type = bf_get(lpfc_sli_intf_if_type, 6273 &phba->sli4_hba.sli_intf); 6274 switch (if_type) { 6275 case LPFC_SLI_INTF_IF_TYPE_0: 6276 phba->sli4_hba.ue_mask_lo = 6277 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 6278 phba->sli4_hba.ue_mask_hi = 6279 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 6280 uerrlo_reg.word0 = 6281 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 6282 uerrhi_reg.word0 = 6283 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 6284 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 6285 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 6286 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6287 "1422 Unrecoverable Error " 6288 "Detected during POST " 6289 "uerr_lo_reg=0x%x, " 6290 "uerr_hi_reg=0x%x, " 6291 "ue_mask_lo_reg=0x%x, " 6292 "ue_mask_hi_reg=0x%x\n", 6293 uerrlo_reg.word0, 6294 uerrhi_reg.word0, 6295 phba->sli4_hba.ue_mask_lo, 6296 phba->sli4_hba.ue_mask_hi); 6297 port_error = -ENODEV; 6298 } 6299 break; 6300 case LPFC_SLI_INTF_IF_TYPE_2: 6301 /* Final checks. The port status should be clean. */ 6302 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 6303 ®_data.word0) || 6304 (bf_get(lpfc_sliport_status_err, ®_data) && 6305 !bf_get(lpfc_sliport_status_rn, ®_data))) { 6306 phba->work_status[0] = 6307 readl(phba->sli4_hba.u.if_type2. 6308 ERR1regaddr); 6309 phba->work_status[1] = 6310 readl(phba->sli4_hba.u.if_type2. 6311 ERR2regaddr); 6312 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6313 "2888 Unrecoverable port error " 6314 "following POST: port status reg " 6315 "0x%x, port_smphr reg 0x%x, " 6316 "error 1=0x%x, error 2=0x%x\n", 6317 reg_data.word0, 6318 portsmphr_reg.word0, 6319 phba->work_status[0], 6320 phba->work_status[1]); 6321 port_error = -ENODEV; 6322 } 6323 break; 6324 case LPFC_SLI_INTF_IF_TYPE_1: 6325 default: 6326 break; 6327 } 6328 } 6329 return port_error; 6330 } 6331 6332 /** 6333 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 6334 * @phba: pointer to lpfc hba data structure. 6335 * @if_type: The SLI4 interface type getting configured. 6336 * 6337 * This routine is invoked to set up SLI4 BAR0 PCI config space register 6338 * memory map. 6339 **/ 6340 static void 6341 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 6342 { 6343 switch (if_type) { 6344 case LPFC_SLI_INTF_IF_TYPE_0: 6345 phba->sli4_hba.u.if_type0.UERRLOregaddr = 6346 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 6347 phba->sli4_hba.u.if_type0.UERRHIregaddr = 6348 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 6349 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 6350 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 6351 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 6352 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 6353 phba->sli4_hba.SLIINTFregaddr = 6354 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 6355 break; 6356 case LPFC_SLI_INTF_IF_TYPE_2: 6357 phba->sli4_hba.u.if_type2.ERR1regaddr = 6358 phba->sli4_hba.conf_regs_memmap_p + 6359 LPFC_CTL_PORT_ER1_OFFSET; 6360 phba->sli4_hba.u.if_type2.ERR2regaddr = 6361 phba->sli4_hba.conf_regs_memmap_p + 6362 LPFC_CTL_PORT_ER2_OFFSET; 6363 phba->sli4_hba.u.if_type2.CTRLregaddr = 6364 phba->sli4_hba.conf_regs_memmap_p + 6365 LPFC_CTL_PORT_CTL_OFFSET; 6366 phba->sli4_hba.u.if_type2.STATUSregaddr = 6367 phba->sli4_hba.conf_regs_memmap_p + 6368 LPFC_CTL_PORT_STA_OFFSET; 6369 phba->sli4_hba.SLIINTFregaddr = 6370 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 6371 phba->sli4_hba.PSMPHRregaddr = 6372 phba->sli4_hba.conf_regs_memmap_p + 6373 LPFC_CTL_PORT_SEM_OFFSET; 6374 phba->sli4_hba.RQDBregaddr = 6375 phba->sli4_hba.conf_regs_memmap_p + 6376 LPFC_ULP0_RQ_DOORBELL; 6377 phba->sli4_hba.WQDBregaddr = 6378 phba->sli4_hba.conf_regs_memmap_p + 6379 LPFC_ULP0_WQ_DOORBELL; 6380 phba->sli4_hba.EQCQDBregaddr = 6381 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 6382 phba->sli4_hba.MQDBregaddr = 6383 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 6384 phba->sli4_hba.BMBXregaddr = 6385 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 6386 break; 6387 case LPFC_SLI_INTF_IF_TYPE_1: 6388 default: 6389 dev_printk(KERN_ERR, &phba->pcidev->dev, 6390 "FATAL - unsupported SLI4 interface type - %d\n", 6391 if_type); 6392 break; 6393 } 6394 } 6395 6396 /** 6397 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 6398 * @phba: pointer to lpfc hba data structure. 6399 * 6400 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 6401 * memory map. 6402 **/ 6403 static void 6404 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 6405 { 6406 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6407 LPFC_SLIPORT_IF0_SMPHR; 6408 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6409 LPFC_HST_ISR0; 6410 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6411 LPFC_HST_IMR0; 6412 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6413 LPFC_HST_ISCR0; 6414 } 6415 6416 /** 6417 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 6418 * @phba: pointer to lpfc hba data structure. 6419 * @vf: virtual function number 6420 * 6421 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 6422 * based on the given viftual function number, @vf. 6423 * 6424 * Return 0 if successful, otherwise -ENODEV. 6425 **/ 6426 static int 6427 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 6428 { 6429 if (vf > LPFC_VIR_FUNC_MAX) 6430 return -ENODEV; 6431 6432 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6433 vf * LPFC_VFR_PAGE_SIZE + 6434 LPFC_ULP0_RQ_DOORBELL); 6435 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6436 vf * LPFC_VFR_PAGE_SIZE + 6437 LPFC_ULP0_WQ_DOORBELL); 6438 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6439 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 6440 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6441 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 6442 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6443 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 6444 return 0; 6445 } 6446 6447 /** 6448 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 6449 * @phba: pointer to lpfc hba data structure. 6450 * 6451 * This routine is invoked to create the bootstrap mailbox 6452 * region consistent with the SLI-4 interface spec. This 6453 * routine allocates all memory necessary to communicate 6454 * mailbox commands to the port and sets up all alignment 6455 * needs. No locks are expected to be held when calling 6456 * this routine. 6457 * 6458 * Return codes 6459 * 0 - successful 6460 * -ENOMEM - could not allocated memory. 6461 **/ 6462 static int 6463 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 6464 { 6465 uint32_t bmbx_size; 6466 struct lpfc_dmabuf *dmabuf; 6467 struct dma_address *dma_address; 6468 uint32_t pa_addr; 6469 uint64_t phys_addr; 6470 6471 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6472 if (!dmabuf) 6473 return -ENOMEM; 6474 6475 /* 6476 * The bootstrap mailbox region is comprised of 2 parts 6477 * plus an alignment restriction of 16 bytes. 6478 */ 6479 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 6480 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 6481 bmbx_size, 6482 &dmabuf->phys, 6483 GFP_KERNEL); 6484 if (!dmabuf->virt) { 6485 kfree(dmabuf); 6486 return -ENOMEM; 6487 } 6488 memset(dmabuf->virt, 0, bmbx_size); 6489 6490 /* 6491 * Initialize the bootstrap mailbox pointers now so that the register 6492 * operations are simple later. The mailbox dma address is required 6493 * to be 16-byte aligned. Also align the virtual memory as each 6494 * maibox is copied into the bmbx mailbox region before issuing the 6495 * command to the port. 6496 */ 6497 phba->sli4_hba.bmbx.dmabuf = dmabuf; 6498 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 6499 6500 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 6501 LPFC_ALIGN_16_BYTE); 6502 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 6503 LPFC_ALIGN_16_BYTE); 6504 6505 /* 6506 * Set the high and low physical addresses now. The SLI4 alignment 6507 * requirement is 16 bytes and the mailbox is posted to the port 6508 * as two 30-bit addresses. The other data is a bit marking whether 6509 * the 30-bit address is the high or low address. 6510 * Upcast bmbx aphys to 64bits so shift instruction compiles 6511 * clean on 32 bit machines. 6512 */ 6513 dma_address = &phba->sli4_hba.bmbx.dma_address; 6514 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 6515 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 6516 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 6517 LPFC_BMBX_BIT1_ADDR_HI); 6518 6519 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 6520 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 6521 LPFC_BMBX_BIT1_ADDR_LO); 6522 return 0; 6523 } 6524 6525 /** 6526 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 6527 * @phba: pointer to lpfc hba data structure. 6528 * 6529 * This routine is invoked to teardown the bootstrap mailbox 6530 * region and release all host resources. This routine requires 6531 * the caller to ensure all mailbox commands recovered, no 6532 * additional mailbox comands are sent, and interrupts are disabled 6533 * before calling this routine. 6534 * 6535 **/ 6536 static void 6537 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 6538 { 6539 dma_free_coherent(&phba->pcidev->dev, 6540 phba->sli4_hba.bmbx.bmbx_size, 6541 phba->sli4_hba.bmbx.dmabuf->virt, 6542 phba->sli4_hba.bmbx.dmabuf->phys); 6543 6544 kfree(phba->sli4_hba.bmbx.dmabuf); 6545 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 6546 } 6547 6548 /** 6549 * lpfc_sli4_read_config - Get the config parameters. 6550 * @phba: pointer to lpfc hba data structure. 6551 * 6552 * This routine is invoked to read the configuration parameters from the HBA. 6553 * The configuration parameters are used to set the base and maximum values 6554 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 6555 * allocation for the port. 6556 * 6557 * Return codes 6558 * 0 - successful 6559 * -ENOMEM - No available memory 6560 * -EIO - The mailbox failed to complete successfully. 6561 **/ 6562 int 6563 lpfc_sli4_read_config(struct lpfc_hba *phba) 6564 { 6565 LPFC_MBOXQ_t *pmb; 6566 struct lpfc_mbx_read_config *rd_config; 6567 union lpfc_sli4_cfg_shdr *shdr; 6568 uint32_t shdr_status, shdr_add_status; 6569 struct lpfc_mbx_get_func_cfg *get_func_cfg; 6570 struct lpfc_rsrc_desc_fcfcoe *desc; 6571 char *pdesc_0; 6572 uint32_t desc_count; 6573 int length, i, rc = 0, rc2; 6574 6575 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6576 if (!pmb) { 6577 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6578 "2011 Unable to allocate memory for issuing " 6579 "SLI_CONFIG_SPECIAL mailbox command\n"); 6580 return -ENOMEM; 6581 } 6582 6583 lpfc_read_config(phba, pmb); 6584 6585 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6586 if (rc != MBX_SUCCESS) { 6587 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6588 "2012 Mailbox failed , mbxCmd x%x " 6589 "READ_CONFIG, mbxStatus x%x\n", 6590 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6591 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6592 rc = -EIO; 6593 } else { 6594 rd_config = &pmb->u.mqe.un.rd_config; 6595 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 6596 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 6597 phba->sli4_hba.lnk_info.lnk_tp = 6598 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 6599 phba->sli4_hba.lnk_info.lnk_no = 6600 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 6601 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6602 "3081 lnk_type:%d, lnk_numb:%d\n", 6603 phba->sli4_hba.lnk_info.lnk_tp, 6604 phba->sli4_hba.lnk_info.lnk_no); 6605 } else 6606 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 6607 "3082 Mailbox (x%x) returned ldv:x0\n", 6608 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 6609 phba->sli4_hba.extents_in_use = 6610 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 6611 phba->sli4_hba.max_cfg_param.max_xri = 6612 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 6613 phba->sli4_hba.max_cfg_param.xri_base = 6614 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 6615 phba->sli4_hba.max_cfg_param.max_vpi = 6616 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 6617 phba->sli4_hba.max_cfg_param.vpi_base = 6618 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 6619 phba->sli4_hba.max_cfg_param.max_rpi = 6620 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 6621 phba->sli4_hba.max_cfg_param.rpi_base = 6622 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 6623 phba->sli4_hba.max_cfg_param.max_vfi = 6624 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 6625 phba->sli4_hba.max_cfg_param.vfi_base = 6626 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 6627 phba->sli4_hba.max_cfg_param.max_fcfi = 6628 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 6629 phba->sli4_hba.max_cfg_param.max_eq = 6630 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 6631 phba->sli4_hba.max_cfg_param.max_rq = 6632 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 6633 phba->sli4_hba.max_cfg_param.max_wq = 6634 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 6635 phba->sli4_hba.max_cfg_param.max_cq = 6636 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 6637 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 6638 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 6639 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 6640 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 6641 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 6642 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 6643 phba->max_vports = phba->max_vpi; 6644 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6645 "2003 cfg params Extents? %d " 6646 "XRI(B:%d M:%d), " 6647 "VPI(B:%d M:%d) " 6648 "VFI(B:%d M:%d) " 6649 "RPI(B:%d M:%d) " 6650 "FCFI(Count:%d)\n", 6651 phba->sli4_hba.extents_in_use, 6652 phba->sli4_hba.max_cfg_param.xri_base, 6653 phba->sli4_hba.max_cfg_param.max_xri, 6654 phba->sli4_hba.max_cfg_param.vpi_base, 6655 phba->sli4_hba.max_cfg_param.max_vpi, 6656 phba->sli4_hba.max_cfg_param.vfi_base, 6657 phba->sli4_hba.max_cfg_param.max_vfi, 6658 phba->sli4_hba.max_cfg_param.rpi_base, 6659 phba->sli4_hba.max_cfg_param.max_rpi, 6660 phba->sli4_hba.max_cfg_param.max_fcfi); 6661 } 6662 6663 if (rc) 6664 goto read_cfg_out; 6665 6666 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 6667 if (phba->cfg_hba_queue_depth > 6668 (phba->sli4_hba.max_cfg_param.max_xri - 6669 lpfc_sli4_get_els_iocb_cnt(phba))) 6670 phba->cfg_hba_queue_depth = 6671 phba->sli4_hba.max_cfg_param.max_xri - 6672 lpfc_sli4_get_els_iocb_cnt(phba); 6673 6674 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 6675 LPFC_SLI_INTF_IF_TYPE_2) 6676 goto read_cfg_out; 6677 6678 /* get the pf# and vf# for SLI4 if_type 2 port */ 6679 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 6680 sizeof(struct lpfc_sli4_cfg_mhdr)); 6681 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 6682 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 6683 length, LPFC_SLI4_MBX_EMBED); 6684 6685 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6686 shdr = (union lpfc_sli4_cfg_shdr *) 6687 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 6688 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6689 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6690 if (rc2 || shdr_status || shdr_add_status) { 6691 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6692 "3026 Mailbox failed , mbxCmd x%x " 6693 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 6694 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6695 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6696 goto read_cfg_out; 6697 } 6698 6699 /* search for fc_fcoe resrouce descriptor */ 6700 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 6701 desc_count = get_func_cfg->func_cfg.rsrc_desc_count; 6702 6703 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 6704 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 6705 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 6706 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 6707 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 6708 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 6709 goto read_cfg_out; 6710 6711 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 6712 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 6713 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 6714 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 6715 phba->sli4_hba.iov.pf_number = 6716 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 6717 phba->sli4_hba.iov.vf_number = 6718 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 6719 break; 6720 } 6721 } 6722 6723 if (i < LPFC_RSRC_DESC_MAX_NUM) 6724 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6725 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 6726 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 6727 phba->sli4_hba.iov.vf_number); 6728 else 6729 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6730 "3028 GET_FUNCTION_CONFIG: failed to find " 6731 "Resrouce Descriptor:x%x\n", 6732 LPFC_RSRC_DESC_TYPE_FCFCOE); 6733 6734 read_cfg_out: 6735 mempool_free(pmb, phba->mbox_mem_pool); 6736 return rc; 6737 } 6738 6739 /** 6740 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 6741 * @phba: pointer to lpfc hba data structure. 6742 * 6743 * This routine is invoked to setup the port-side endian order when 6744 * the port if_type is 0. This routine has no function for other 6745 * if_types. 6746 * 6747 * Return codes 6748 * 0 - successful 6749 * -ENOMEM - No available memory 6750 * -EIO - The mailbox failed to complete successfully. 6751 **/ 6752 static int 6753 lpfc_setup_endian_order(struct lpfc_hba *phba) 6754 { 6755 LPFC_MBOXQ_t *mboxq; 6756 uint32_t if_type, rc = 0; 6757 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 6758 HOST_ENDIAN_HIGH_WORD1}; 6759 6760 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 6761 switch (if_type) { 6762 case LPFC_SLI_INTF_IF_TYPE_0: 6763 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6764 GFP_KERNEL); 6765 if (!mboxq) { 6766 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6767 "0492 Unable to allocate memory for " 6768 "issuing SLI_CONFIG_SPECIAL mailbox " 6769 "command\n"); 6770 return -ENOMEM; 6771 } 6772 6773 /* 6774 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 6775 * two words to contain special data values and no other data. 6776 */ 6777 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 6778 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 6779 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6780 if (rc != MBX_SUCCESS) { 6781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6782 "0493 SLI_CONFIG_SPECIAL mailbox " 6783 "failed with status x%x\n", 6784 rc); 6785 rc = -EIO; 6786 } 6787 mempool_free(mboxq, phba->mbox_mem_pool); 6788 break; 6789 case LPFC_SLI_INTF_IF_TYPE_2: 6790 case LPFC_SLI_INTF_IF_TYPE_1: 6791 default: 6792 break; 6793 } 6794 return rc; 6795 } 6796 6797 /** 6798 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts 6799 * @phba: pointer to lpfc hba data structure. 6800 * 6801 * This routine is invoked to check the user settable queue counts for EQs and 6802 * CQs. after this routine is called the counts will be set to valid values that 6803 * adhere to the constraints of the system's interrupt vectors and the port's 6804 * queue resources. 6805 * 6806 * Return codes 6807 * 0 - successful 6808 * -ENOMEM - No available memory 6809 **/ 6810 static int 6811 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 6812 { 6813 int cfg_fcp_io_channel; 6814 uint32_t cpu; 6815 uint32_t i = 0; 6816 6817 /* 6818 * Sanity check for configured queue parameters against the run-time 6819 * device parameters 6820 */ 6821 6822 /* Sanity check on HBA EQ parameters */ 6823 cfg_fcp_io_channel = phba->cfg_fcp_io_channel; 6824 6825 /* It doesn't make sense to have more io channels then online CPUs */ 6826 for_each_present_cpu(cpu) { 6827 if (cpu_online(cpu)) 6828 i++; 6829 } 6830 phba->sli4_hba.num_online_cpu = i; 6831 phba->sli4_hba.num_present_cpu = lpfc_present_cpu; 6832 6833 if (i < cfg_fcp_io_channel) { 6834 lpfc_printf_log(phba, 6835 KERN_ERR, LOG_INIT, 6836 "3188 Reducing IO channels to match number of " 6837 "online CPUs: from %d to %d\n", 6838 cfg_fcp_io_channel, i); 6839 cfg_fcp_io_channel = i; 6840 } 6841 6842 if (cfg_fcp_io_channel > 6843 phba->sli4_hba.max_cfg_param.max_eq) { 6844 if (phba->sli4_hba.max_cfg_param.max_eq < 6845 LPFC_FCP_IO_CHAN_MIN) { 6846 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6847 "2574 Not enough EQs (%d) from the " 6848 "pci function for supporting FCP " 6849 "EQs (%d)\n", 6850 phba->sli4_hba.max_cfg_param.max_eq, 6851 phba->cfg_fcp_io_channel); 6852 goto out_error; 6853 } 6854 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6855 "2575 Reducing IO channels to match number of " 6856 "available EQs: from %d to %d\n", 6857 cfg_fcp_io_channel, 6858 phba->sli4_hba.max_cfg_param.max_eq); 6859 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq; 6860 } 6861 6862 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */ 6863 6864 /* The actual number of FCP event queues adopted */ 6865 phba->cfg_fcp_eq_count = cfg_fcp_io_channel; 6866 phba->cfg_fcp_wq_count = cfg_fcp_io_channel; 6867 phba->cfg_fcp_io_channel = cfg_fcp_io_channel; 6868 6869 /* Get EQ depth from module parameter, fake the default for now */ 6870 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 6871 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 6872 6873 /* Get CQ depth from module parameter, fake the default for now */ 6874 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 6875 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 6876 6877 return 0; 6878 out_error: 6879 return -ENOMEM; 6880 } 6881 6882 /** 6883 * lpfc_sli4_queue_create - Create all the SLI4 queues 6884 * @phba: pointer to lpfc hba data structure. 6885 * 6886 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 6887 * operation. For each SLI4 queue type, the parameters such as queue entry 6888 * count (queue depth) shall be taken from the module parameter. For now, 6889 * we just use some constant number as place holder. 6890 * 6891 * Return codes 6892 * 0 - successful 6893 * -ENOMEM - No availble memory 6894 * -EIO - The mailbox failed to complete successfully. 6895 **/ 6896 int 6897 lpfc_sli4_queue_create(struct lpfc_hba *phba) 6898 { 6899 struct lpfc_queue *qdesc; 6900 int idx; 6901 6902 /* 6903 * Create HBA Record arrays. 6904 */ 6905 if (!phba->cfg_fcp_io_channel) 6906 return -ERANGE; 6907 6908 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 6909 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 6910 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 6911 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 6912 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 6913 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 6914 6915 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) * 6916 phba->cfg_fcp_io_channel), GFP_KERNEL); 6917 if (!phba->sli4_hba.hba_eq) { 6918 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6919 "2576 Failed allocate memory for " 6920 "fast-path EQ record array\n"); 6921 goto out_error; 6922 } 6923 6924 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 6925 phba->cfg_fcp_io_channel), GFP_KERNEL); 6926 if (!phba->sli4_hba.fcp_cq) { 6927 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6928 "2577 Failed allocate memory for fast-path " 6929 "CQ record array\n"); 6930 goto out_error; 6931 } 6932 6933 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 6934 phba->cfg_fcp_io_channel), GFP_KERNEL); 6935 if (!phba->sli4_hba.fcp_wq) { 6936 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6937 "2578 Failed allocate memory for fast-path " 6938 "WQ record array\n"); 6939 goto out_error; 6940 } 6941 6942 /* 6943 * Since the first EQ can have multiple CQs associated with it, 6944 * this array is used to quickly see if we have a FCP fast-path 6945 * CQ match. 6946 */ 6947 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) * 6948 phba->cfg_fcp_io_channel), GFP_KERNEL); 6949 if (!phba->sli4_hba.fcp_cq_map) { 6950 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6951 "2545 Failed allocate memory for fast-path " 6952 "CQ map\n"); 6953 goto out_error; 6954 } 6955 6956 /* 6957 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies 6958 * how many EQs to create. 6959 */ 6960 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 6961 6962 /* Create EQs */ 6963 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6964 phba->sli4_hba.eq_ecount); 6965 if (!qdesc) { 6966 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6967 "0497 Failed allocate EQ (%d)\n", idx); 6968 goto out_error; 6969 } 6970 phba->sli4_hba.hba_eq[idx] = qdesc; 6971 6972 /* Create Fast Path FCP CQs */ 6973 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6974 phba->sli4_hba.cq_ecount); 6975 if (!qdesc) { 6976 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6977 "0499 Failed allocate fast-path FCP " 6978 "CQ (%d)\n", idx); 6979 goto out_error; 6980 } 6981 phba->sli4_hba.fcp_cq[idx] = qdesc; 6982 6983 /* Create Fast Path FCP WQs */ 6984 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6985 phba->sli4_hba.wq_ecount); 6986 if (!qdesc) { 6987 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6988 "0503 Failed allocate fast-path FCP " 6989 "WQ (%d)\n", idx); 6990 goto out_error; 6991 } 6992 phba->sli4_hba.fcp_wq[idx] = qdesc; 6993 } 6994 6995 6996 /* 6997 * Create Slow Path Completion Queues (CQs) 6998 */ 6999 7000 /* Create slow-path Mailbox Command Complete Queue */ 7001 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7002 phba->sli4_hba.cq_ecount); 7003 if (!qdesc) { 7004 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7005 "0500 Failed allocate slow-path mailbox CQ\n"); 7006 goto out_error; 7007 } 7008 phba->sli4_hba.mbx_cq = qdesc; 7009 7010 /* Create slow-path ELS Complete Queue */ 7011 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7012 phba->sli4_hba.cq_ecount); 7013 if (!qdesc) { 7014 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7015 "0501 Failed allocate slow-path ELS CQ\n"); 7016 goto out_error; 7017 } 7018 phba->sli4_hba.els_cq = qdesc; 7019 7020 7021 /* 7022 * Create Slow Path Work Queues (WQs) 7023 */ 7024 7025 /* Create Mailbox Command Queue */ 7026 7027 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 7028 phba->sli4_hba.mq_ecount); 7029 if (!qdesc) { 7030 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7031 "0505 Failed allocate slow-path MQ\n"); 7032 goto out_error; 7033 } 7034 phba->sli4_hba.mbx_wq = qdesc; 7035 7036 /* 7037 * Create ELS Work Queues 7038 */ 7039 7040 /* Create slow-path ELS Work Queue */ 7041 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 7042 phba->sli4_hba.wq_ecount); 7043 if (!qdesc) { 7044 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7045 "0504 Failed allocate slow-path ELS WQ\n"); 7046 goto out_error; 7047 } 7048 phba->sli4_hba.els_wq = qdesc; 7049 7050 /* 7051 * Create Receive Queue (RQ) 7052 */ 7053 7054 /* Create Receive Queue for header */ 7055 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 7056 phba->sli4_hba.rq_ecount); 7057 if (!qdesc) { 7058 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7059 "0506 Failed allocate receive HRQ\n"); 7060 goto out_error; 7061 } 7062 phba->sli4_hba.hdr_rq = qdesc; 7063 7064 /* Create Receive Queue for data */ 7065 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 7066 phba->sli4_hba.rq_ecount); 7067 if (!qdesc) { 7068 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7069 "0507 Failed allocate receive DRQ\n"); 7070 goto out_error; 7071 } 7072 phba->sli4_hba.dat_rq = qdesc; 7073 7074 return 0; 7075 7076 out_error: 7077 lpfc_sli4_queue_destroy(phba); 7078 return -ENOMEM; 7079 } 7080 7081 /** 7082 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 7083 * @phba: pointer to lpfc hba data structure. 7084 * 7085 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 7086 * operation. 7087 * 7088 * Return codes 7089 * 0 - successful 7090 * -ENOMEM - No available memory 7091 * -EIO - The mailbox failed to complete successfully. 7092 **/ 7093 void 7094 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 7095 { 7096 int idx; 7097 7098 if (phba->sli4_hba.hba_eq != NULL) { 7099 /* Release HBA event queue */ 7100 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 7101 if (phba->sli4_hba.hba_eq[idx] != NULL) { 7102 lpfc_sli4_queue_free( 7103 phba->sli4_hba.hba_eq[idx]); 7104 phba->sli4_hba.hba_eq[idx] = NULL; 7105 } 7106 } 7107 kfree(phba->sli4_hba.hba_eq); 7108 phba->sli4_hba.hba_eq = NULL; 7109 } 7110 7111 if (phba->sli4_hba.fcp_cq != NULL) { 7112 /* Release FCP completion queue */ 7113 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 7114 if (phba->sli4_hba.fcp_cq[idx] != NULL) { 7115 lpfc_sli4_queue_free( 7116 phba->sli4_hba.fcp_cq[idx]); 7117 phba->sli4_hba.fcp_cq[idx] = NULL; 7118 } 7119 } 7120 kfree(phba->sli4_hba.fcp_cq); 7121 phba->sli4_hba.fcp_cq = NULL; 7122 } 7123 7124 if (phba->sli4_hba.fcp_wq != NULL) { 7125 /* Release FCP work queue */ 7126 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 7127 if (phba->sli4_hba.fcp_wq[idx] != NULL) { 7128 lpfc_sli4_queue_free( 7129 phba->sli4_hba.fcp_wq[idx]); 7130 phba->sli4_hba.fcp_wq[idx] = NULL; 7131 } 7132 } 7133 kfree(phba->sli4_hba.fcp_wq); 7134 phba->sli4_hba.fcp_wq = NULL; 7135 } 7136 7137 if (phba->pci_bar0_memmap_p) { 7138 iounmap(phba->pci_bar0_memmap_p); 7139 phba->pci_bar0_memmap_p = NULL; 7140 } 7141 if (phba->pci_bar2_memmap_p) { 7142 iounmap(phba->pci_bar2_memmap_p); 7143 phba->pci_bar2_memmap_p = NULL; 7144 } 7145 if (phba->pci_bar4_memmap_p) { 7146 iounmap(phba->pci_bar4_memmap_p); 7147 phba->pci_bar4_memmap_p = NULL; 7148 } 7149 7150 /* Release FCP CQ mapping array */ 7151 if (phba->sli4_hba.fcp_cq_map != NULL) { 7152 kfree(phba->sli4_hba.fcp_cq_map); 7153 phba->sli4_hba.fcp_cq_map = NULL; 7154 } 7155 7156 /* Release mailbox command work queue */ 7157 if (phba->sli4_hba.mbx_wq != NULL) { 7158 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 7159 phba->sli4_hba.mbx_wq = NULL; 7160 } 7161 7162 /* Release ELS work queue */ 7163 if (phba->sli4_hba.els_wq != NULL) { 7164 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 7165 phba->sli4_hba.els_wq = NULL; 7166 } 7167 7168 /* Release unsolicited receive queue */ 7169 if (phba->sli4_hba.hdr_rq != NULL) { 7170 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 7171 phba->sli4_hba.hdr_rq = NULL; 7172 } 7173 if (phba->sli4_hba.dat_rq != NULL) { 7174 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 7175 phba->sli4_hba.dat_rq = NULL; 7176 } 7177 7178 /* Release ELS complete queue */ 7179 if (phba->sli4_hba.els_cq != NULL) { 7180 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 7181 phba->sli4_hba.els_cq = NULL; 7182 } 7183 7184 /* Release mailbox command complete queue */ 7185 if (phba->sli4_hba.mbx_cq != NULL) { 7186 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 7187 phba->sli4_hba.mbx_cq = NULL; 7188 } 7189 7190 return; 7191 } 7192 7193 /** 7194 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 7195 * @phba: pointer to lpfc hba data structure. 7196 * 7197 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 7198 * operation. 7199 * 7200 * Return codes 7201 * 0 - successful 7202 * -ENOMEM - No available memory 7203 * -EIO - The mailbox failed to complete successfully. 7204 **/ 7205 int 7206 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 7207 { 7208 struct lpfc_sli *psli = &phba->sli; 7209 struct lpfc_sli_ring *pring; 7210 int rc = -ENOMEM; 7211 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 7212 int fcp_cq_index = 0; 7213 uint32_t shdr_status, shdr_add_status; 7214 union lpfc_sli4_cfg_shdr *shdr; 7215 LPFC_MBOXQ_t *mboxq; 7216 uint32_t length; 7217 7218 /* Check for dual-ULP support */ 7219 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7220 if (!mboxq) { 7221 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7222 "3249 Unable to allocate memory for " 7223 "QUERY_FW_CFG mailbox command\n"); 7224 return -ENOMEM; 7225 } 7226 length = (sizeof(struct lpfc_mbx_query_fw_config) - 7227 sizeof(struct lpfc_sli4_cfg_mhdr)); 7228 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7229 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 7230 length, LPFC_SLI4_MBX_EMBED); 7231 7232 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7233 7234 shdr = (union lpfc_sli4_cfg_shdr *) 7235 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7236 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7237 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7238 if (shdr_status || shdr_add_status || rc) { 7239 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7240 "3250 QUERY_FW_CFG mailbox failed with status " 7241 "x%x add_status x%x, mbx status x%x\n", 7242 shdr_status, shdr_add_status, rc); 7243 if (rc != MBX_TIMEOUT) 7244 mempool_free(mboxq, phba->mbox_mem_pool); 7245 rc = -ENXIO; 7246 goto out_error; 7247 } 7248 7249 phba->sli4_hba.fw_func_mode = 7250 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; 7251 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; 7252 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; 7253 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7254 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " 7255 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, 7256 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); 7257 7258 if (rc != MBX_TIMEOUT) 7259 mempool_free(mboxq, phba->mbox_mem_pool); 7260 7261 /* 7262 * Set up HBA Event Queues (EQs) 7263 */ 7264 7265 /* Set up HBA event queue */ 7266 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) { 7267 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7268 "3147 Fast-path EQs not allocated\n"); 7269 rc = -ENOMEM; 7270 goto out_error; 7271 } 7272 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) { 7273 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) { 7274 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7275 "0522 Fast-path EQ (%d) not " 7276 "allocated\n", fcp_eqidx); 7277 rc = -ENOMEM; 7278 goto out_destroy_hba_eq; 7279 } 7280 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx], 7281 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel)); 7282 if (rc) { 7283 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7284 "0523 Failed setup of fast-path EQ " 7285 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 7286 goto out_destroy_hba_eq; 7287 } 7288 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7289 "2584 HBA EQ setup: " 7290 "queue[%d]-id=%d\n", fcp_eqidx, 7291 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id); 7292 } 7293 7294 /* Set up fast-path FCP Response Complete Queue */ 7295 if (!phba->sli4_hba.fcp_cq) { 7296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7297 "3148 Fast-path FCP CQ array not " 7298 "allocated\n"); 7299 rc = -ENOMEM; 7300 goto out_destroy_hba_eq; 7301 } 7302 7303 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) { 7304 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 7305 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7306 "0526 Fast-path FCP CQ (%d) not " 7307 "allocated\n", fcp_cqidx); 7308 rc = -ENOMEM; 7309 goto out_destroy_fcp_cq; 7310 } 7311 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 7312 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP); 7313 if (rc) { 7314 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7315 "0527 Failed setup of fast-path FCP " 7316 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 7317 goto out_destroy_fcp_cq; 7318 } 7319 7320 /* Setup fcp_cq_map for fast lookup */ 7321 phba->sli4_hba.fcp_cq_map[fcp_cqidx] = 7322 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id; 7323 7324 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7325 "2588 FCP CQ setup: cq[%d]-id=%d, " 7326 "parent seq[%d]-id=%d\n", 7327 fcp_cqidx, 7328 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 7329 fcp_cqidx, 7330 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id); 7331 } 7332 7333 /* Set up fast-path FCP Work Queue */ 7334 if (!phba->sli4_hba.fcp_wq) { 7335 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7336 "3149 Fast-path FCP WQ array not " 7337 "allocated\n"); 7338 rc = -ENOMEM; 7339 goto out_destroy_fcp_cq; 7340 } 7341 7342 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) { 7343 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 7344 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7345 "0534 Fast-path FCP WQ (%d) not " 7346 "allocated\n", fcp_wqidx); 7347 rc = -ENOMEM; 7348 goto out_destroy_fcp_wq; 7349 } 7350 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 7351 phba->sli4_hba.fcp_cq[fcp_wqidx], 7352 LPFC_FCP); 7353 if (rc) { 7354 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7355 "0535 Failed setup of fast-path FCP " 7356 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 7357 goto out_destroy_fcp_wq; 7358 } 7359 7360 /* Bind this WQ to the next FCP ring */ 7361 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx]; 7362 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx]; 7363 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring; 7364 7365 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7366 "2591 FCP WQ setup: wq[%d]-id=%d, " 7367 "parent cq[%d]-id=%d\n", 7368 fcp_wqidx, 7369 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 7370 fcp_cq_index, 7371 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id); 7372 } 7373 /* 7374 * Set up Complete Queues (CQs) 7375 */ 7376 7377 /* Set up slow-path MBOX Complete Queue as the first CQ */ 7378 if (!phba->sli4_hba.mbx_cq) { 7379 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7380 "0528 Mailbox CQ not allocated\n"); 7381 rc = -ENOMEM; 7382 goto out_destroy_fcp_wq; 7383 } 7384 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, 7385 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX); 7386 if (rc) { 7387 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7388 "0529 Failed setup of slow-path mailbox CQ: " 7389 "rc = 0x%x\n", rc); 7390 goto out_destroy_fcp_wq; 7391 } 7392 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7393 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 7394 phba->sli4_hba.mbx_cq->queue_id, 7395 phba->sli4_hba.hba_eq[0]->queue_id); 7396 7397 /* Set up slow-path ELS Complete Queue */ 7398 if (!phba->sli4_hba.els_cq) { 7399 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7400 "0530 ELS CQ not allocated\n"); 7401 rc = -ENOMEM; 7402 goto out_destroy_mbx_cq; 7403 } 7404 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, 7405 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS); 7406 if (rc) { 7407 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7408 "0531 Failed setup of slow-path ELS CQ: " 7409 "rc = 0x%x\n", rc); 7410 goto out_destroy_mbx_cq; 7411 } 7412 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7413 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 7414 phba->sli4_hba.els_cq->queue_id, 7415 phba->sli4_hba.hba_eq[0]->queue_id); 7416 7417 /* 7418 * Set up all the Work Queues (WQs) 7419 */ 7420 7421 /* Set up Mailbox Command Queue */ 7422 if (!phba->sli4_hba.mbx_wq) { 7423 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7424 "0538 Slow-path MQ not allocated\n"); 7425 rc = -ENOMEM; 7426 goto out_destroy_els_cq; 7427 } 7428 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 7429 phba->sli4_hba.mbx_cq, LPFC_MBOX); 7430 if (rc) { 7431 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7432 "0539 Failed setup of slow-path MQ: " 7433 "rc = 0x%x\n", rc); 7434 goto out_destroy_els_cq; 7435 } 7436 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7437 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 7438 phba->sli4_hba.mbx_wq->queue_id, 7439 phba->sli4_hba.mbx_cq->queue_id); 7440 7441 /* Set up slow-path ELS Work Queue */ 7442 if (!phba->sli4_hba.els_wq) { 7443 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7444 "0536 Slow-path ELS WQ not allocated\n"); 7445 rc = -ENOMEM; 7446 goto out_destroy_mbx_wq; 7447 } 7448 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 7449 phba->sli4_hba.els_cq, LPFC_ELS); 7450 if (rc) { 7451 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7452 "0537 Failed setup of slow-path ELS WQ: " 7453 "rc = 0x%x\n", rc); 7454 goto out_destroy_mbx_wq; 7455 } 7456 7457 /* Bind this WQ to the ELS ring */ 7458 pring = &psli->ring[LPFC_ELS_RING]; 7459 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq; 7460 phba->sli4_hba.els_cq->pring = pring; 7461 7462 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7463 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 7464 phba->sli4_hba.els_wq->queue_id, 7465 phba->sli4_hba.els_cq->queue_id); 7466 7467 /* 7468 * Create Receive Queue (RQ) 7469 */ 7470 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 7471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7472 "0540 Receive Queue not allocated\n"); 7473 rc = -ENOMEM; 7474 goto out_destroy_els_wq; 7475 } 7476 7477 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ); 7478 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ); 7479 7480 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 7481 phba->sli4_hba.els_cq, LPFC_USOL); 7482 if (rc) { 7483 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7484 "0541 Failed setup of Receive Queue: " 7485 "rc = 0x%x\n", rc); 7486 goto out_destroy_fcp_wq; 7487 } 7488 7489 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7490 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 7491 "parent cq-id=%d\n", 7492 phba->sli4_hba.hdr_rq->queue_id, 7493 phba->sli4_hba.dat_rq->queue_id, 7494 phba->sli4_hba.els_cq->queue_id); 7495 return 0; 7496 7497 out_destroy_els_wq: 7498 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7499 out_destroy_mbx_wq: 7500 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7501 out_destroy_els_cq: 7502 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7503 out_destroy_mbx_cq: 7504 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7505 out_destroy_fcp_wq: 7506 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 7507 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 7508 out_destroy_fcp_cq: 7509 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 7510 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 7511 out_destroy_hba_eq: 7512 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 7513 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]); 7514 out_error: 7515 return rc; 7516 } 7517 7518 /** 7519 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 7520 * @phba: pointer to lpfc hba data structure. 7521 * 7522 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 7523 * operation. 7524 * 7525 * Return codes 7526 * 0 - successful 7527 * -ENOMEM - No available memory 7528 * -EIO - The mailbox failed to complete successfully. 7529 **/ 7530 void 7531 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 7532 { 7533 int fcp_qidx; 7534 7535 /* Unset mailbox command work queue */ 7536 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7537 /* Unset ELS work queue */ 7538 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7539 /* Unset unsolicited receive queue */ 7540 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 7541 /* Unset FCP work queue */ 7542 if (phba->sli4_hba.fcp_wq) { 7543 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7544 fcp_qidx++) 7545 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 7546 } 7547 /* Unset mailbox command complete queue */ 7548 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7549 /* Unset ELS complete queue */ 7550 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7551 /* Unset FCP response complete queue */ 7552 if (phba->sli4_hba.fcp_cq) { 7553 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7554 fcp_qidx++) 7555 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 7556 } 7557 /* Unset fast-path event queue */ 7558 if (phba->sli4_hba.hba_eq) { 7559 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7560 fcp_qidx++) 7561 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]); 7562 } 7563 } 7564 7565 /** 7566 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 7567 * @phba: pointer to lpfc hba data structure. 7568 * 7569 * This routine is invoked to allocate and set up a pool of completion queue 7570 * events. The body of the completion queue event is a completion queue entry 7571 * CQE. For now, this pool is used for the interrupt service routine to queue 7572 * the following HBA completion queue events for the worker thread to process: 7573 * - Mailbox asynchronous events 7574 * - Receive queue completion unsolicited events 7575 * Later, this can be used for all the slow-path events. 7576 * 7577 * Return codes 7578 * 0 - successful 7579 * -ENOMEM - No available memory 7580 **/ 7581 static int 7582 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 7583 { 7584 struct lpfc_cq_event *cq_event; 7585 int i; 7586 7587 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 7588 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 7589 if (!cq_event) 7590 goto out_pool_create_fail; 7591 list_add_tail(&cq_event->list, 7592 &phba->sli4_hba.sp_cqe_event_pool); 7593 } 7594 return 0; 7595 7596 out_pool_create_fail: 7597 lpfc_sli4_cq_event_pool_destroy(phba); 7598 return -ENOMEM; 7599 } 7600 7601 /** 7602 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 7603 * @phba: pointer to lpfc hba data structure. 7604 * 7605 * This routine is invoked to free the pool of completion queue events at 7606 * driver unload time. Note that, it is the responsibility of the driver 7607 * cleanup routine to free all the outstanding completion-queue events 7608 * allocated from this pool back into the pool before invoking this routine 7609 * to destroy the pool. 7610 **/ 7611 static void 7612 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 7613 { 7614 struct lpfc_cq_event *cq_event, *next_cq_event; 7615 7616 list_for_each_entry_safe(cq_event, next_cq_event, 7617 &phba->sli4_hba.sp_cqe_event_pool, list) { 7618 list_del(&cq_event->list); 7619 kfree(cq_event); 7620 } 7621 } 7622 7623 /** 7624 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7625 * @phba: pointer to lpfc hba data structure. 7626 * 7627 * This routine is the lock free version of the API invoked to allocate a 7628 * completion-queue event from the free pool. 7629 * 7630 * Return: Pointer to the newly allocated completion-queue event if successful 7631 * NULL otherwise. 7632 **/ 7633 struct lpfc_cq_event * 7634 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7635 { 7636 struct lpfc_cq_event *cq_event = NULL; 7637 7638 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 7639 struct lpfc_cq_event, list); 7640 return cq_event; 7641 } 7642 7643 /** 7644 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7645 * @phba: pointer to lpfc hba data structure. 7646 * 7647 * This routine is the lock version of the API invoked to allocate a 7648 * completion-queue event from the free pool. 7649 * 7650 * Return: Pointer to the newly allocated completion-queue event if successful 7651 * NULL otherwise. 7652 **/ 7653 struct lpfc_cq_event * 7654 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7655 { 7656 struct lpfc_cq_event *cq_event; 7657 unsigned long iflags; 7658 7659 spin_lock_irqsave(&phba->hbalock, iflags); 7660 cq_event = __lpfc_sli4_cq_event_alloc(phba); 7661 spin_unlock_irqrestore(&phba->hbalock, iflags); 7662 return cq_event; 7663 } 7664 7665 /** 7666 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7667 * @phba: pointer to lpfc hba data structure. 7668 * @cq_event: pointer to the completion queue event to be freed. 7669 * 7670 * This routine is the lock free version of the API invoked to release a 7671 * completion-queue event back into the free pool. 7672 **/ 7673 void 7674 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7675 struct lpfc_cq_event *cq_event) 7676 { 7677 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 7678 } 7679 7680 /** 7681 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7682 * @phba: pointer to lpfc hba data structure. 7683 * @cq_event: pointer to the completion queue event to be freed. 7684 * 7685 * This routine is the lock version of the API invoked to release a 7686 * completion-queue event back into the free pool. 7687 **/ 7688 void 7689 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7690 struct lpfc_cq_event *cq_event) 7691 { 7692 unsigned long iflags; 7693 spin_lock_irqsave(&phba->hbalock, iflags); 7694 __lpfc_sli4_cq_event_release(phba, cq_event); 7695 spin_unlock_irqrestore(&phba->hbalock, iflags); 7696 } 7697 7698 /** 7699 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 7700 * @phba: pointer to lpfc hba data structure. 7701 * 7702 * This routine is to free all the pending completion-queue events to the 7703 * back into the free pool for device reset. 7704 **/ 7705 static void 7706 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 7707 { 7708 LIST_HEAD(cqelist); 7709 struct lpfc_cq_event *cqe; 7710 unsigned long iflags; 7711 7712 /* Retrieve all the pending WCQEs from pending WCQE lists */ 7713 spin_lock_irqsave(&phba->hbalock, iflags); 7714 /* Pending FCP XRI abort events */ 7715 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 7716 &cqelist); 7717 /* Pending ELS XRI abort events */ 7718 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 7719 &cqelist); 7720 /* Pending asynnc events */ 7721 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 7722 &cqelist); 7723 spin_unlock_irqrestore(&phba->hbalock, iflags); 7724 7725 while (!list_empty(&cqelist)) { 7726 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 7727 lpfc_sli4_cq_event_release(phba, cqe); 7728 } 7729 } 7730 7731 /** 7732 * lpfc_pci_function_reset - Reset pci function. 7733 * @phba: pointer to lpfc hba data structure. 7734 * 7735 * This routine is invoked to request a PCI function reset. It will destroys 7736 * all resources assigned to the PCI function which originates this request. 7737 * 7738 * Return codes 7739 * 0 - successful 7740 * -ENOMEM - No available memory 7741 * -EIO - The mailbox failed to complete successfully. 7742 **/ 7743 int 7744 lpfc_pci_function_reset(struct lpfc_hba *phba) 7745 { 7746 LPFC_MBOXQ_t *mboxq; 7747 uint32_t rc = 0, if_type; 7748 uint32_t shdr_status, shdr_add_status; 7749 uint32_t rdy_chk, num_resets = 0, reset_again = 0; 7750 union lpfc_sli4_cfg_shdr *shdr; 7751 struct lpfc_register reg_data; 7752 uint16_t devid; 7753 7754 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7755 switch (if_type) { 7756 case LPFC_SLI_INTF_IF_TYPE_0: 7757 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7758 GFP_KERNEL); 7759 if (!mboxq) { 7760 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7761 "0494 Unable to allocate memory for " 7762 "issuing SLI_FUNCTION_RESET mailbox " 7763 "command\n"); 7764 return -ENOMEM; 7765 } 7766 7767 /* Setup PCI function reset mailbox-ioctl command */ 7768 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7769 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 7770 LPFC_SLI4_MBX_EMBED); 7771 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7772 shdr = (union lpfc_sli4_cfg_shdr *) 7773 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7774 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7775 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7776 &shdr->response); 7777 if (rc != MBX_TIMEOUT) 7778 mempool_free(mboxq, phba->mbox_mem_pool); 7779 if (shdr_status || shdr_add_status || rc) { 7780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7781 "0495 SLI_FUNCTION_RESET mailbox " 7782 "failed with status x%x add_status x%x," 7783 " mbx status x%x\n", 7784 shdr_status, shdr_add_status, rc); 7785 rc = -ENXIO; 7786 } 7787 break; 7788 case LPFC_SLI_INTF_IF_TYPE_2: 7789 for (num_resets = 0; 7790 num_resets < MAX_IF_TYPE_2_RESETS; 7791 num_resets++) { 7792 reg_data.word0 = 0; 7793 bf_set(lpfc_sliport_ctrl_end, ®_data, 7794 LPFC_SLIPORT_LITTLE_ENDIAN); 7795 bf_set(lpfc_sliport_ctrl_ip, ®_data, 7796 LPFC_SLIPORT_INIT_PORT); 7797 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 7798 CTRLregaddr); 7799 /* flush */ 7800 pci_read_config_word(phba->pcidev, 7801 PCI_DEVICE_ID, &devid); 7802 /* 7803 * Poll the Port Status Register and wait for RDY for 7804 * up to 10 seconds. If the port doesn't respond, treat 7805 * it as an error. If the port responds with RN, start 7806 * the loop again. 7807 */ 7808 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { 7809 msleep(10); 7810 if (lpfc_readl(phba->sli4_hba.u.if_type2. 7811 STATUSregaddr, ®_data.word0)) { 7812 rc = -ENODEV; 7813 goto out; 7814 } 7815 if (bf_get(lpfc_sliport_status_rn, ®_data)) 7816 reset_again++; 7817 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 7818 break; 7819 } 7820 7821 /* 7822 * If the port responds to the init request with 7823 * reset needed, delay for a bit and restart the loop. 7824 */ 7825 if (reset_again && (rdy_chk < 1000)) { 7826 msleep(10); 7827 reset_again = 0; 7828 continue; 7829 } 7830 7831 /* Detect any port errors. */ 7832 if ((bf_get(lpfc_sliport_status_err, ®_data)) || 7833 (rdy_chk >= 1000)) { 7834 phba->work_status[0] = readl( 7835 phba->sli4_hba.u.if_type2.ERR1regaddr); 7836 phba->work_status[1] = readl( 7837 phba->sli4_hba.u.if_type2.ERR2regaddr); 7838 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7839 "2890 Port error detected during port " 7840 "reset(%d): wait_tmo:%d ms, " 7841 "port status reg 0x%x, " 7842 "error 1=0x%x, error 2=0x%x\n", 7843 num_resets, rdy_chk*10, 7844 reg_data.word0, 7845 phba->work_status[0], 7846 phba->work_status[1]); 7847 rc = -ENODEV; 7848 } 7849 7850 /* 7851 * Terminate the outer loop provided the Port indicated 7852 * ready within 10 seconds. 7853 */ 7854 if (rdy_chk < 1000) 7855 break; 7856 } 7857 /* delay driver action following IF_TYPE_2 function reset */ 7858 msleep(100); 7859 break; 7860 case LPFC_SLI_INTF_IF_TYPE_1: 7861 default: 7862 break; 7863 } 7864 7865 out: 7866 /* Catch the not-ready port failure after a port reset. */ 7867 if (num_resets >= MAX_IF_TYPE_2_RESETS) { 7868 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7869 "3317 HBA not functional: IP Reset Failed " 7870 "after (%d) retries, try: " 7871 "echo fw_reset > board_mode\n", num_resets); 7872 rc = -ENODEV; 7873 } 7874 7875 return rc; 7876 } 7877 7878 /** 7879 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 7880 * @phba: pointer to lpfc hba data structure. 7881 * 7882 * This routine is invoked to set up the PCI device memory space for device 7883 * with SLI-4 interface spec. 7884 * 7885 * Return codes 7886 * 0 - successful 7887 * other values - error 7888 **/ 7889 static int 7890 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 7891 { 7892 struct pci_dev *pdev; 7893 unsigned long bar0map_len, bar1map_len, bar2map_len; 7894 int error = -ENODEV; 7895 uint32_t if_type; 7896 7897 /* Obtain PCI device reference */ 7898 if (!phba->pcidev) 7899 return error; 7900 else 7901 pdev = phba->pcidev; 7902 7903 /* Set the device DMA mask size */ 7904 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7905 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7906 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7907 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7908 return error; 7909 } 7910 } 7911 7912 /* 7913 * The BARs and register set definitions and offset locations are 7914 * dependent on the if_type. 7915 */ 7916 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 7917 &phba->sli4_hba.sli_intf.word0)) { 7918 return error; 7919 } 7920 7921 /* There is no SLI3 failback for SLI4 devices. */ 7922 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 7923 LPFC_SLI_INTF_VALID) { 7924 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7925 "2894 SLI_INTF reg contents invalid " 7926 "sli_intf reg 0x%x\n", 7927 phba->sli4_hba.sli_intf.word0); 7928 return error; 7929 } 7930 7931 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7932 /* 7933 * Get the bus address of SLI4 device Bar regions and the 7934 * number of bytes required by each mapping. The mapping of the 7935 * particular PCI BARs regions is dependent on the type of 7936 * SLI4 device. 7937 */ 7938 if (pci_resource_start(pdev, 0)) { 7939 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7940 bar0map_len = pci_resource_len(pdev, 0); 7941 7942 /* 7943 * Map SLI4 PCI Config Space Register base to a kernel virtual 7944 * addr 7945 */ 7946 phba->sli4_hba.conf_regs_memmap_p = 7947 ioremap(phba->pci_bar0_map, bar0map_len); 7948 if (!phba->sli4_hba.conf_regs_memmap_p) { 7949 dev_printk(KERN_ERR, &pdev->dev, 7950 "ioremap failed for SLI4 PCI config " 7951 "registers.\n"); 7952 goto out; 7953 } 7954 /* Set up BAR0 PCI config space register memory map */ 7955 lpfc_sli4_bar0_register_memmap(phba, if_type); 7956 } else { 7957 phba->pci_bar0_map = pci_resource_start(pdev, 1); 7958 bar0map_len = pci_resource_len(pdev, 1); 7959 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7960 dev_printk(KERN_ERR, &pdev->dev, 7961 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 7962 goto out; 7963 } 7964 phba->sli4_hba.conf_regs_memmap_p = 7965 ioremap(phba->pci_bar0_map, bar0map_len); 7966 if (!phba->sli4_hba.conf_regs_memmap_p) { 7967 dev_printk(KERN_ERR, &pdev->dev, 7968 "ioremap failed for SLI4 PCI config " 7969 "registers.\n"); 7970 goto out; 7971 } 7972 lpfc_sli4_bar0_register_memmap(phba, if_type); 7973 } 7974 7975 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7976 (pci_resource_start(pdev, 2))) { 7977 /* 7978 * Map SLI4 if type 0 HBA Control Register base to a kernel 7979 * virtual address and setup the registers. 7980 */ 7981 phba->pci_bar1_map = pci_resource_start(pdev, 2); 7982 bar1map_len = pci_resource_len(pdev, 2); 7983 phba->sli4_hba.ctrl_regs_memmap_p = 7984 ioremap(phba->pci_bar1_map, bar1map_len); 7985 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 7986 dev_printk(KERN_ERR, &pdev->dev, 7987 "ioremap failed for SLI4 HBA control registers.\n"); 7988 goto out_iounmap_conf; 7989 } 7990 lpfc_sli4_bar1_register_memmap(phba); 7991 } 7992 7993 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7994 (pci_resource_start(pdev, 4))) { 7995 /* 7996 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 7997 * virtual address and setup the registers. 7998 */ 7999 phba->pci_bar2_map = pci_resource_start(pdev, 4); 8000 bar2map_len = pci_resource_len(pdev, 4); 8001 phba->sli4_hba.drbl_regs_memmap_p = 8002 ioremap(phba->pci_bar2_map, bar2map_len); 8003 if (!phba->sli4_hba.drbl_regs_memmap_p) { 8004 dev_printk(KERN_ERR, &pdev->dev, 8005 "ioremap failed for SLI4 HBA doorbell registers.\n"); 8006 goto out_iounmap_ctrl; 8007 } 8008 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 8009 if (error) 8010 goto out_iounmap_all; 8011 } 8012 8013 return 0; 8014 8015 out_iounmap_all: 8016 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 8017 out_iounmap_ctrl: 8018 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 8019 out_iounmap_conf: 8020 iounmap(phba->sli4_hba.conf_regs_memmap_p); 8021 out: 8022 return error; 8023 } 8024 8025 /** 8026 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 8027 * @phba: pointer to lpfc hba data structure. 8028 * 8029 * This routine is invoked to unset the PCI device memory space for device 8030 * with SLI-4 interface spec. 8031 **/ 8032 static void 8033 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 8034 { 8035 uint32_t if_type; 8036 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 8037 8038 switch (if_type) { 8039 case LPFC_SLI_INTF_IF_TYPE_0: 8040 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 8041 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 8042 iounmap(phba->sli4_hba.conf_regs_memmap_p); 8043 break; 8044 case LPFC_SLI_INTF_IF_TYPE_2: 8045 iounmap(phba->sli4_hba.conf_regs_memmap_p); 8046 break; 8047 case LPFC_SLI_INTF_IF_TYPE_1: 8048 default: 8049 dev_printk(KERN_ERR, &phba->pcidev->dev, 8050 "FATAL - unsupported SLI4 interface type - %d\n", 8051 if_type); 8052 break; 8053 } 8054 } 8055 8056 /** 8057 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 8058 * @phba: pointer to lpfc hba data structure. 8059 * 8060 * This routine is invoked to enable the MSI-X interrupt vectors to device 8061 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 8062 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 8063 * invoked, enables either all or nothing, depending on the current 8064 * availability of PCI vector resources. The device driver is responsible 8065 * for calling the individual request_irq() to register each MSI-X vector 8066 * with a interrupt handler, which is done in this function. Note that 8067 * later when device is unloading, the driver should always call free_irq() 8068 * on all MSI-X vectors it has done request_irq() on before calling 8069 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 8070 * will be left with MSI-X enabled and leaks its vectors. 8071 * 8072 * Return codes 8073 * 0 - successful 8074 * other values - error 8075 **/ 8076 static int 8077 lpfc_sli_enable_msix(struct lpfc_hba *phba) 8078 { 8079 int rc, i; 8080 LPFC_MBOXQ_t *pmb; 8081 8082 /* Set up MSI-X multi-message vectors */ 8083 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 8084 phba->msix_entries[i].entry = i; 8085 8086 /* Configure MSI-X capability structure */ 8087 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 8088 ARRAY_SIZE(phba->msix_entries)); 8089 if (rc) { 8090 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8091 "0420 PCI enable MSI-X failed (%d)\n", rc); 8092 goto msi_fail_out; 8093 } 8094 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 8095 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8096 "0477 MSI-X entry[%d]: vector=x%x " 8097 "message=%d\n", i, 8098 phba->msix_entries[i].vector, 8099 phba->msix_entries[i].entry); 8100 /* 8101 * Assign MSI-X vectors to interrupt handlers 8102 */ 8103 8104 /* vector-0 is associated to slow-path handler */ 8105 rc = request_irq(phba->msix_entries[0].vector, 8106 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 8107 LPFC_SP_DRIVER_HANDLER_NAME, phba); 8108 if (rc) { 8109 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8110 "0421 MSI-X slow-path request_irq failed " 8111 "(%d)\n", rc); 8112 goto msi_fail_out; 8113 } 8114 8115 /* vector-1 is associated to fast-path handler */ 8116 rc = request_irq(phba->msix_entries[1].vector, 8117 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 8118 LPFC_FP_DRIVER_HANDLER_NAME, phba); 8119 8120 if (rc) { 8121 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8122 "0429 MSI-X fast-path request_irq failed " 8123 "(%d)\n", rc); 8124 goto irq_fail_out; 8125 } 8126 8127 /* 8128 * Configure HBA MSI-X attention conditions to messages 8129 */ 8130 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 8131 8132 if (!pmb) { 8133 rc = -ENOMEM; 8134 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8135 "0474 Unable to allocate memory for issuing " 8136 "MBOX_CONFIG_MSI command\n"); 8137 goto mem_fail_out; 8138 } 8139 rc = lpfc_config_msi(phba, pmb); 8140 if (rc) 8141 goto mbx_fail_out; 8142 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 8143 if (rc != MBX_SUCCESS) { 8144 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 8145 "0351 Config MSI mailbox command failed, " 8146 "mbxCmd x%x, mbxStatus x%x\n", 8147 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 8148 goto mbx_fail_out; 8149 } 8150 8151 /* Free memory allocated for mailbox command */ 8152 mempool_free(pmb, phba->mbox_mem_pool); 8153 return rc; 8154 8155 mbx_fail_out: 8156 /* Free memory allocated for mailbox command */ 8157 mempool_free(pmb, phba->mbox_mem_pool); 8158 8159 mem_fail_out: 8160 /* free the irq already requested */ 8161 free_irq(phba->msix_entries[1].vector, phba); 8162 8163 irq_fail_out: 8164 /* free the irq already requested */ 8165 free_irq(phba->msix_entries[0].vector, phba); 8166 8167 msi_fail_out: 8168 /* Unconfigure MSI-X capability structure */ 8169 pci_disable_msix(phba->pcidev); 8170 return rc; 8171 } 8172 8173 /** 8174 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 8175 * @phba: pointer to lpfc hba data structure. 8176 * 8177 * This routine is invoked to release the MSI-X vectors and then disable the 8178 * MSI-X interrupt mode to device with SLI-3 interface spec. 8179 **/ 8180 static void 8181 lpfc_sli_disable_msix(struct lpfc_hba *phba) 8182 { 8183 int i; 8184 8185 /* Free up MSI-X multi-message vectors */ 8186 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 8187 free_irq(phba->msix_entries[i].vector, phba); 8188 /* Disable MSI-X */ 8189 pci_disable_msix(phba->pcidev); 8190 8191 return; 8192 } 8193 8194 /** 8195 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 8196 * @phba: pointer to lpfc hba data structure. 8197 * 8198 * This routine is invoked to enable the MSI interrupt mode to device with 8199 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 8200 * enable the MSI vector. The device driver is responsible for calling the 8201 * request_irq() to register MSI vector with a interrupt the handler, which 8202 * is done in this function. 8203 * 8204 * Return codes 8205 * 0 - successful 8206 * other values - error 8207 */ 8208 static int 8209 lpfc_sli_enable_msi(struct lpfc_hba *phba) 8210 { 8211 int rc; 8212 8213 rc = pci_enable_msi(phba->pcidev); 8214 if (!rc) 8215 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8216 "0462 PCI enable MSI mode success.\n"); 8217 else { 8218 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8219 "0471 PCI enable MSI mode failed (%d)\n", rc); 8220 return rc; 8221 } 8222 8223 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 8224 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8225 if (rc) { 8226 pci_disable_msi(phba->pcidev); 8227 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8228 "0478 MSI request_irq failed (%d)\n", rc); 8229 } 8230 return rc; 8231 } 8232 8233 /** 8234 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 8235 * @phba: pointer to lpfc hba data structure. 8236 * 8237 * This routine is invoked to disable the MSI interrupt mode to device with 8238 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 8239 * done request_irq() on before calling pci_disable_msi(). Failure to do so 8240 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 8241 * its vector. 8242 */ 8243 static void 8244 lpfc_sli_disable_msi(struct lpfc_hba *phba) 8245 { 8246 free_irq(phba->pcidev->irq, phba); 8247 pci_disable_msi(phba->pcidev); 8248 return; 8249 } 8250 8251 /** 8252 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 8253 * @phba: pointer to lpfc hba data structure. 8254 * 8255 * This routine is invoked to enable device interrupt and associate driver's 8256 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 8257 * spec. Depends on the interrupt mode configured to the driver, the driver 8258 * will try to fallback from the configured interrupt mode to an interrupt 8259 * mode which is supported by the platform, kernel, and device in the order 8260 * of: 8261 * MSI-X -> MSI -> IRQ. 8262 * 8263 * Return codes 8264 * 0 - successful 8265 * other values - error 8266 **/ 8267 static uint32_t 8268 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 8269 { 8270 uint32_t intr_mode = LPFC_INTR_ERROR; 8271 int retval; 8272 8273 if (cfg_mode == 2) { 8274 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 8275 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 8276 if (!retval) { 8277 /* Now, try to enable MSI-X interrupt mode */ 8278 retval = lpfc_sli_enable_msix(phba); 8279 if (!retval) { 8280 /* Indicate initialization to MSI-X mode */ 8281 phba->intr_type = MSIX; 8282 intr_mode = 2; 8283 } 8284 } 8285 } 8286 8287 /* Fallback to MSI if MSI-X initialization failed */ 8288 if (cfg_mode >= 1 && phba->intr_type == NONE) { 8289 retval = lpfc_sli_enable_msi(phba); 8290 if (!retval) { 8291 /* Indicate initialization to MSI mode */ 8292 phba->intr_type = MSI; 8293 intr_mode = 1; 8294 } 8295 } 8296 8297 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 8298 if (phba->intr_type == NONE) { 8299 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 8300 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8301 if (!retval) { 8302 /* Indicate initialization to INTx mode */ 8303 phba->intr_type = INTx; 8304 intr_mode = 0; 8305 } 8306 } 8307 return intr_mode; 8308 } 8309 8310 /** 8311 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 8312 * @phba: pointer to lpfc hba data structure. 8313 * 8314 * This routine is invoked to disable device interrupt and disassociate the 8315 * driver's interrupt handler(s) from interrupt vector(s) to device with 8316 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 8317 * release the interrupt vector(s) for the message signaled interrupt. 8318 **/ 8319 static void 8320 lpfc_sli_disable_intr(struct lpfc_hba *phba) 8321 { 8322 /* Disable the currently initialized interrupt mode */ 8323 if (phba->intr_type == MSIX) 8324 lpfc_sli_disable_msix(phba); 8325 else if (phba->intr_type == MSI) 8326 lpfc_sli_disable_msi(phba); 8327 else if (phba->intr_type == INTx) 8328 free_irq(phba->pcidev->irq, phba); 8329 8330 /* Reset interrupt management states */ 8331 phba->intr_type = NONE; 8332 phba->sli.slistat.sli_intr = 0; 8333 8334 return; 8335 } 8336 8337 /** 8338 * lpfc_find_next_cpu - Find next available CPU that matches the phys_id 8339 * @phba: pointer to lpfc hba data structure. 8340 * 8341 * Find next available CPU to use for IRQ to CPU affinity. 8342 */ 8343 static int 8344 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id) 8345 { 8346 struct lpfc_vector_map_info *cpup; 8347 int cpu; 8348 8349 cpup = phba->sli4_hba.cpu_map; 8350 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8351 /* CPU must be online */ 8352 if (cpu_online(cpu)) { 8353 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) && 8354 (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) && 8355 (cpup->phys_id == phys_id)) { 8356 return cpu; 8357 } 8358 } 8359 cpup++; 8360 } 8361 8362 /* 8363 * If we get here, we have used ALL CPUs for the specific 8364 * phys_id. Now we need to clear out lpfc_used_cpu and start 8365 * reusing CPUs. 8366 */ 8367 8368 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8369 if (lpfc_used_cpu[cpu] == phys_id) 8370 lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY; 8371 } 8372 8373 cpup = phba->sli4_hba.cpu_map; 8374 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8375 /* CPU must be online */ 8376 if (cpu_online(cpu)) { 8377 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) && 8378 (cpup->phys_id == phys_id)) { 8379 return cpu; 8380 } 8381 } 8382 cpup++; 8383 } 8384 return LPFC_VECTOR_MAP_EMPTY; 8385 } 8386 8387 /** 8388 * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors 8389 * @phba: pointer to lpfc hba data structure. 8390 * @vectors: number of HBA vectors 8391 * 8392 * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector 8393 * affinization across multple physical CPUs (numa nodes). 8394 * In addition, this routine will assign an IO channel for each CPU 8395 * to use when issuing I/Os. 8396 */ 8397 static int 8398 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors) 8399 { 8400 int i, idx, saved_chann, used_chann, cpu, phys_id; 8401 int max_phys_id, num_io_channel, first_cpu; 8402 struct lpfc_vector_map_info *cpup; 8403 #ifdef CONFIG_X86 8404 struct cpuinfo_x86 *cpuinfo; 8405 #endif 8406 struct cpumask *mask; 8407 uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1]; 8408 8409 /* If there is no mapping, just return */ 8410 if (!phba->cfg_fcp_cpu_map) 8411 return 1; 8412 8413 /* Init cpu_map array */ 8414 memset(phba->sli4_hba.cpu_map, 0xff, 8415 (sizeof(struct lpfc_vector_map_info) * 8416 phba->sli4_hba.num_present_cpu)); 8417 8418 max_phys_id = 0; 8419 phys_id = 0; 8420 num_io_channel = 0; 8421 first_cpu = LPFC_VECTOR_MAP_EMPTY; 8422 8423 /* Update CPU map with physical id and core id of each CPU */ 8424 cpup = phba->sli4_hba.cpu_map; 8425 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8426 #ifdef CONFIG_X86 8427 cpuinfo = &cpu_data(cpu); 8428 cpup->phys_id = cpuinfo->phys_proc_id; 8429 cpup->core_id = cpuinfo->cpu_core_id; 8430 #else 8431 /* No distinction between CPUs for other platforms */ 8432 cpup->phys_id = 0; 8433 cpup->core_id = 0; 8434 #endif 8435 8436 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8437 "3328 CPU physid %d coreid %d\n", 8438 cpup->phys_id, cpup->core_id); 8439 8440 if (cpup->phys_id > max_phys_id) 8441 max_phys_id = cpup->phys_id; 8442 cpup++; 8443 } 8444 8445 /* Now associate the HBA vectors with specific CPUs */ 8446 for (idx = 0; idx < vectors; idx++) { 8447 cpup = phba->sli4_hba.cpu_map; 8448 cpu = lpfc_find_next_cpu(phba, phys_id); 8449 if (cpu == LPFC_VECTOR_MAP_EMPTY) { 8450 8451 /* Try for all phys_id's */ 8452 for (i = 1; i < max_phys_id; i++) { 8453 phys_id++; 8454 if (phys_id > max_phys_id) 8455 phys_id = 0; 8456 cpu = lpfc_find_next_cpu(phba, phys_id); 8457 if (cpu == LPFC_VECTOR_MAP_EMPTY) 8458 continue; 8459 goto found; 8460 } 8461 8462 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8463 "3329 Cannot set affinity:" 8464 "Error mapping vector %d (%d)\n", 8465 idx, vectors); 8466 return 0; 8467 } 8468 found: 8469 cpup += cpu; 8470 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP) 8471 lpfc_used_cpu[cpu] = phys_id; 8472 8473 /* Associate vector with selected CPU */ 8474 cpup->irq = phba->sli4_hba.msix_entries[idx].vector; 8475 8476 /* Associate IO channel with selected CPU */ 8477 cpup->channel_id = idx; 8478 num_io_channel++; 8479 8480 if (first_cpu == LPFC_VECTOR_MAP_EMPTY) 8481 first_cpu = cpu; 8482 8483 /* Now affinitize to the selected CPU */ 8484 mask = &cpup->maskbits; 8485 cpumask_clear(mask); 8486 cpumask_set_cpu(cpu, mask); 8487 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx]. 8488 vector, mask); 8489 8490 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8491 "3330 Set Affinity: CPU %d channel %d " 8492 "irq %d (%x)\n", 8493 cpu, cpup->channel_id, 8494 phba->sli4_hba.msix_entries[idx].vector, i); 8495 8496 /* Spread vector mapping across multple physical CPU nodes */ 8497 phys_id++; 8498 if (phys_id > max_phys_id) 8499 phys_id = 0; 8500 } 8501 8502 /* 8503 * Finally fill in the IO channel for any remaining CPUs. 8504 * At this point, all IO channels have been assigned to a specific 8505 * MSIx vector, mapped to a specific CPU. 8506 * Base the remaining IO channel assigned, to IO channels already 8507 * assigned to other CPUs on the same phys_id. 8508 */ 8509 for (i = 0; i <= max_phys_id; i++) { 8510 /* 8511 * If there are no io channels already mapped to 8512 * this phys_id, just round robin thru the io_channels. 8513 * Setup chann[] for round robin. 8514 */ 8515 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 8516 chann[idx] = idx; 8517 8518 saved_chann = 0; 8519 used_chann = 0; 8520 8521 /* 8522 * First build a list of IO channels already assigned 8523 * to this phys_id before reassigning the same IO 8524 * channels to the remaining CPUs. 8525 */ 8526 cpup = phba->sli4_hba.cpu_map; 8527 cpu = first_cpu; 8528 cpup += cpu; 8529 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; 8530 idx++) { 8531 if (cpup->phys_id == i) { 8532 /* 8533 * Save any IO channels that are 8534 * already mapped to this phys_id. 8535 */ 8536 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) { 8537 chann[saved_chann] = 8538 cpup->channel_id; 8539 saved_chann++; 8540 goto out; 8541 } 8542 8543 /* See if we are using round-robin */ 8544 if (saved_chann == 0) 8545 saved_chann = 8546 phba->cfg_fcp_io_channel; 8547 8548 /* Associate next IO channel with CPU */ 8549 cpup->channel_id = chann[used_chann]; 8550 num_io_channel++; 8551 used_chann++; 8552 if (used_chann == saved_chann) 8553 used_chann = 0; 8554 8555 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8556 "3331 Set IO_CHANN " 8557 "CPU %d channel %d\n", 8558 idx, cpup->channel_id); 8559 } 8560 out: 8561 cpu++; 8562 if (cpu >= phba->sli4_hba.num_present_cpu) { 8563 cpup = phba->sli4_hba.cpu_map; 8564 cpu = 0; 8565 } else { 8566 cpup++; 8567 } 8568 } 8569 } 8570 8571 if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) { 8572 cpup = phba->sli4_hba.cpu_map; 8573 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) { 8574 if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) { 8575 cpup->channel_id = 0; 8576 num_io_channel++; 8577 8578 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8579 "3332 Assign IO_CHANN " 8580 "CPU %d channel %d\n", 8581 idx, cpup->channel_id); 8582 } 8583 cpup++; 8584 } 8585 } 8586 8587 /* Sanity check */ 8588 if (num_io_channel != phba->sli4_hba.num_present_cpu) 8589 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8590 "3333 Set affinity mismatch:" 8591 "%d chann != %d cpus: %d vactors\n", 8592 num_io_channel, phba->sli4_hba.num_present_cpu, 8593 vectors); 8594 8595 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU; 8596 return 1; 8597 } 8598 8599 8600 /** 8601 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 8602 * @phba: pointer to lpfc hba data structure. 8603 * 8604 * This routine is invoked to enable the MSI-X interrupt vectors to device 8605 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 8606 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 8607 * enables either all or nothing, depending on the current availability of 8608 * PCI vector resources. The device driver is responsible for calling the 8609 * individual request_irq() to register each MSI-X vector with a interrupt 8610 * handler, which is done in this function. Note that later when device is 8611 * unloading, the driver should always call free_irq() on all MSI-X vectors 8612 * it has done request_irq() on before calling pci_disable_msix(). Failure 8613 * to do so results in a BUG_ON() and a device will be left with MSI-X 8614 * enabled and leaks its vectors. 8615 * 8616 * Return codes 8617 * 0 - successful 8618 * other values - error 8619 **/ 8620 static int 8621 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 8622 { 8623 int vectors, rc, index; 8624 8625 /* Set up MSI-X multi-message vectors */ 8626 for (index = 0; index < phba->cfg_fcp_io_channel; index++) 8627 phba->sli4_hba.msix_entries[index].entry = index; 8628 8629 /* Configure MSI-X capability structure */ 8630 vectors = phba->cfg_fcp_io_channel; 8631 enable_msix_vectors: 8632 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 8633 vectors); 8634 if (rc > 1) { 8635 vectors = rc; 8636 goto enable_msix_vectors; 8637 } else if (rc) { 8638 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8639 "0484 PCI enable MSI-X failed (%d)\n", rc); 8640 goto msi_fail_out; 8641 } 8642 8643 /* Log MSI-X vector assignment */ 8644 for (index = 0; index < vectors; index++) 8645 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8646 "0489 MSI-X entry[%d]: vector=x%x " 8647 "message=%d\n", index, 8648 phba->sli4_hba.msix_entries[index].vector, 8649 phba->sli4_hba.msix_entries[index].entry); 8650 8651 /* Assign MSI-X vectors to interrupt handlers */ 8652 for (index = 0; index < vectors; index++) { 8653 memset(&phba->sli4_hba.handler_name[index], 0, 16); 8654 sprintf((char *)&phba->sli4_hba.handler_name[index], 8655 LPFC_DRIVER_HANDLER_NAME"%d", index); 8656 8657 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8658 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8659 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1); 8660 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 8661 &lpfc_sli4_hba_intr_handler, IRQF_SHARED, 8662 (char *)&phba->sli4_hba.handler_name[index], 8663 &phba->sli4_hba.fcp_eq_hdl[index]); 8664 if (rc) { 8665 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8666 "0486 MSI-X fast-path (%d) " 8667 "request_irq failed (%d)\n", index, rc); 8668 goto cfg_fail_out; 8669 } 8670 } 8671 8672 if (vectors != phba->cfg_fcp_io_channel) { 8673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8674 "3238 Reducing IO channels to match number of " 8675 "MSI-X vectors, requested %d got %d\n", 8676 phba->cfg_fcp_io_channel, vectors); 8677 phba->cfg_fcp_io_channel = vectors; 8678 } 8679 8680 lpfc_sli4_set_affinity(phba, vectors); 8681 return rc; 8682 8683 cfg_fail_out: 8684 /* free the irq already requested */ 8685 for (--index; index >= 0; index--) 8686 free_irq(phba->sli4_hba.msix_entries[index].vector, 8687 &phba->sli4_hba.fcp_eq_hdl[index]); 8688 8689 msi_fail_out: 8690 /* Unconfigure MSI-X capability structure */ 8691 pci_disable_msix(phba->pcidev); 8692 return rc; 8693 } 8694 8695 /** 8696 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 8697 * @phba: pointer to lpfc hba data structure. 8698 * 8699 * This routine is invoked to release the MSI-X vectors and then disable the 8700 * MSI-X interrupt mode to device with SLI-4 interface spec. 8701 **/ 8702 static void 8703 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 8704 { 8705 int index; 8706 8707 /* Free up MSI-X multi-message vectors */ 8708 for (index = 0; index < phba->cfg_fcp_io_channel; index++) 8709 free_irq(phba->sli4_hba.msix_entries[index].vector, 8710 &phba->sli4_hba.fcp_eq_hdl[index]); 8711 8712 /* Disable MSI-X */ 8713 pci_disable_msix(phba->pcidev); 8714 8715 return; 8716 } 8717 8718 /** 8719 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 8720 * @phba: pointer to lpfc hba data structure. 8721 * 8722 * This routine is invoked to enable the MSI interrupt mode to device with 8723 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 8724 * to enable the MSI vector. The device driver is responsible for calling 8725 * the request_irq() to register MSI vector with a interrupt the handler, 8726 * which is done in this function. 8727 * 8728 * Return codes 8729 * 0 - successful 8730 * other values - error 8731 **/ 8732 static int 8733 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 8734 { 8735 int rc, index; 8736 8737 rc = pci_enable_msi(phba->pcidev); 8738 if (!rc) 8739 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8740 "0487 PCI enable MSI mode success.\n"); 8741 else { 8742 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8743 "0488 PCI enable MSI mode failed (%d)\n", rc); 8744 return rc; 8745 } 8746 8747 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8748 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8749 if (rc) { 8750 pci_disable_msi(phba->pcidev); 8751 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8752 "0490 MSI request_irq failed (%d)\n", rc); 8753 return rc; 8754 } 8755 8756 for (index = 0; index < phba->cfg_fcp_io_channel; index++) { 8757 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8758 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8759 } 8760 8761 return 0; 8762 } 8763 8764 /** 8765 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 8766 * @phba: pointer to lpfc hba data structure. 8767 * 8768 * This routine is invoked to disable the MSI interrupt mode to device with 8769 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 8770 * done request_irq() on before calling pci_disable_msi(). Failure to do so 8771 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 8772 * its vector. 8773 **/ 8774 static void 8775 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 8776 { 8777 free_irq(phba->pcidev->irq, phba); 8778 pci_disable_msi(phba->pcidev); 8779 return; 8780 } 8781 8782 /** 8783 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 8784 * @phba: pointer to lpfc hba data structure. 8785 * 8786 * This routine is invoked to enable device interrupt and associate driver's 8787 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 8788 * interface spec. Depends on the interrupt mode configured to the driver, 8789 * the driver will try to fallback from the configured interrupt mode to an 8790 * interrupt mode which is supported by the platform, kernel, and device in 8791 * the order of: 8792 * MSI-X -> MSI -> IRQ. 8793 * 8794 * Return codes 8795 * 0 - successful 8796 * other values - error 8797 **/ 8798 static uint32_t 8799 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 8800 { 8801 uint32_t intr_mode = LPFC_INTR_ERROR; 8802 int retval, index; 8803 8804 if (cfg_mode == 2) { 8805 /* Preparation before conf_msi mbox cmd */ 8806 retval = 0; 8807 if (!retval) { 8808 /* Now, try to enable MSI-X interrupt mode */ 8809 retval = lpfc_sli4_enable_msix(phba); 8810 if (!retval) { 8811 /* Indicate initialization to MSI-X mode */ 8812 phba->intr_type = MSIX; 8813 intr_mode = 2; 8814 } 8815 } 8816 } 8817 8818 /* Fallback to MSI if MSI-X initialization failed */ 8819 if (cfg_mode >= 1 && phba->intr_type == NONE) { 8820 retval = lpfc_sli4_enable_msi(phba); 8821 if (!retval) { 8822 /* Indicate initialization to MSI mode */ 8823 phba->intr_type = MSI; 8824 intr_mode = 1; 8825 } 8826 } 8827 8828 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 8829 if (phba->intr_type == NONE) { 8830 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8831 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8832 if (!retval) { 8833 /* Indicate initialization to INTx mode */ 8834 phba->intr_type = INTx; 8835 intr_mode = 0; 8836 for (index = 0; index < phba->cfg_fcp_io_channel; 8837 index++) { 8838 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8839 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8840 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index]. 8841 fcp_eq_in_use, 1); 8842 } 8843 } 8844 } 8845 return intr_mode; 8846 } 8847 8848 /** 8849 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 8850 * @phba: pointer to lpfc hba data structure. 8851 * 8852 * This routine is invoked to disable device interrupt and disassociate 8853 * the driver's interrupt handler(s) from interrupt vector(s) to device 8854 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 8855 * will release the interrupt vector(s) for the message signaled interrupt. 8856 **/ 8857 static void 8858 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 8859 { 8860 /* Disable the currently initialized interrupt mode */ 8861 if (phba->intr_type == MSIX) 8862 lpfc_sli4_disable_msix(phba); 8863 else if (phba->intr_type == MSI) 8864 lpfc_sli4_disable_msi(phba); 8865 else if (phba->intr_type == INTx) 8866 free_irq(phba->pcidev->irq, phba); 8867 8868 /* Reset interrupt management states */ 8869 phba->intr_type = NONE; 8870 phba->sli.slistat.sli_intr = 0; 8871 8872 return; 8873 } 8874 8875 /** 8876 * lpfc_unset_hba - Unset SLI3 hba device initialization 8877 * @phba: pointer to lpfc hba data structure. 8878 * 8879 * This routine is invoked to unset the HBA device initialization steps to 8880 * a device with SLI-3 interface spec. 8881 **/ 8882 static void 8883 lpfc_unset_hba(struct lpfc_hba *phba) 8884 { 8885 struct lpfc_vport *vport = phba->pport; 8886 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8887 8888 spin_lock_irq(shost->host_lock); 8889 vport->load_flag |= FC_UNLOADING; 8890 spin_unlock_irq(shost->host_lock); 8891 8892 kfree(phba->vpi_bmask); 8893 kfree(phba->vpi_ids); 8894 8895 lpfc_stop_hba_timers(phba); 8896 8897 phba->pport->work_port_events = 0; 8898 8899 lpfc_sli_hba_down(phba); 8900 8901 lpfc_sli_brdrestart(phba); 8902 8903 lpfc_sli_disable_intr(phba); 8904 8905 return; 8906 } 8907 8908 /** 8909 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 8910 * @phba: Pointer to HBA context object. 8911 * 8912 * This function is called in the SLI4 code path to wait for completion 8913 * of device's XRIs exchange busy. It will check the XRI exchange busy 8914 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 8915 * that, it will check the XRI exchange busy on outstanding FCP and ELS 8916 * I/Os every 30 seconds, log error message, and wait forever. Only when 8917 * all XRI exchange busy complete, the driver unload shall proceed with 8918 * invoking the function reset ioctl mailbox command to the CNA and the 8919 * the rest of the driver unload resource release. 8920 **/ 8921 static void 8922 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 8923 { 8924 int wait_time = 0; 8925 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8926 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8927 8928 while (!fcp_xri_cmpl || !els_xri_cmpl) { 8929 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 8930 if (!fcp_xri_cmpl) 8931 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8932 "2877 FCP XRI exchange busy " 8933 "wait time: %d seconds.\n", 8934 wait_time/1000); 8935 if (!els_xri_cmpl) 8936 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8937 "2878 ELS XRI exchange busy " 8938 "wait time: %d seconds.\n", 8939 wait_time/1000); 8940 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 8941 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 8942 } else { 8943 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 8944 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 8945 } 8946 fcp_xri_cmpl = 8947 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8948 els_xri_cmpl = 8949 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8950 } 8951 } 8952 8953 /** 8954 * lpfc_sli4_hba_unset - Unset the fcoe hba 8955 * @phba: Pointer to HBA context object. 8956 * 8957 * This function is called in the SLI4 code path to reset the HBA's FCoE 8958 * function. The caller is not required to hold any lock. This routine 8959 * issues PCI function reset mailbox command to reset the FCoE function. 8960 * At the end of the function, it calls lpfc_hba_down_post function to 8961 * free any pending commands. 8962 **/ 8963 static void 8964 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 8965 { 8966 int wait_cnt = 0; 8967 LPFC_MBOXQ_t *mboxq; 8968 struct pci_dev *pdev = phba->pcidev; 8969 8970 lpfc_stop_hba_timers(phba); 8971 phba->sli4_hba.intr_enable = 0; 8972 8973 /* 8974 * Gracefully wait out the potential current outstanding asynchronous 8975 * mailbox command. 8976 */ 8977 8978 /* First, block any pending async mailbox command from posted */ 8979 spin_lock_irq(&phba->hbalock); 8980 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 8981 spin_unlock_irq(&phba->hbalock); 8982 /* Now, trying to wait it out if we can */ 8983 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8984 msleep(10); 8985 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 8986 break; 8987 } 8988 /* Forcefully release the outstanding mailbox command if timed out */ 8989 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8990 spin_lock_irq(&phba->hbalock); 8991 mboxq = phba->sli.mbox_active; 8992 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 8993 __lpfc_mbox_cmpl_put(phba, mboxq); 8994 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 8995 phba->sli.mbox_active = NULL; 8996 spin_unlock_irq(&phba->hbalock); 8997 } 8998 8999 /* Abort all iocbs associated with the hba */ 9000 lpfc_sli_hba_iocb_abort(phba); 9001 9002 /* Wait for completion of device XRI exchange busy */ 9003 lpfc_sli4_xri_exchange_busy_wait(phba); 9004 9005 /* Disable PCI subsystem interrupt */ 9006 lpfc_sli4_disable_intr(phba); 9007 9008 /* Disable SR-IOV if enabled */ 9009 if (phba->cfg_sriov_nr_virtfn) 9010 pci_disable_sriov(pdev); 9011 9012 /* Stop kthread signal shall trigger work_done one more time */ 9013 kthread_stop(phba->worker_thread); 9014 9015 /* Reset SLI4 HBA FCoE function */ 9016 lpfc_pci_function_reset(phba); 9017 lpfc_sli4_queue_destroy(phba); 9018 9019 /* Stop the SLI4 device port */ 9020 phba->pport->work_port_events = 0; 9021 } 9022 9023 /** 9024 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 9025 * @phba: Pointer to HBA context object. 9026 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 9027 * 9028 * This function is called in the SLI4 code path to read the port's 9029 * sli4 capabilities. 9030 * 9031 * This function may be be called from any context that can block-wait 9032 * for the completion. The expectation is that this routine is called 9033 * typically from probe_one or from the online routine. 9034 **/ 9035 int 9036 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 9037 { 9038 int rc; 9039 struct lpfc_mqe *mqe; 9040 struct lpfc_pc_sli4_params *sli4_params; 9041 uint32_t mbox_tmo; 9042 9043 rc = 0; 9044 mqe = &mboxq->u.mqe; 9045 9046 /* Read the port's SLI4 Parameters port capabilities */ 9047 lpfc_pc_sli4_params(mboxq); 9048 if (!phba->sli4_hba.intr_enable) 9049 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9050 else { 9051 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 9052 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 9053 } 9054 9055 if (unlikely(rc)) 9056 return 1; 9057 9058 sli4_params = &phba->sli4_hba.pc_sli4_params; 9059 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 9060 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 9061 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 9062 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 9063 &mqe->un.sli4_params); 9064 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 9065 &mqe->un.sli4_params); 9066 sli4_params->proto_types = mqe->un.sli4_params.word3; 9067 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 9068 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 9069 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 9070 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 9071 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 9072 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 9073 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 9074 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 9075 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 9076 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 9077 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 9078 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 9079 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 9080 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 9081 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 9082 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 9083 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 9084 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 9085 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 9086 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 9087 9088 /* Make sure that sge_supp_len can be handled by the driver */ 9089 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 9090 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 9091 9092 return rc; 9093 } 9094 9095 /** 9096 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 9097 * @phba: Pointer to HBA context object. 9098 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 9099 * 9100 * This function is called in the SLI4 code path to read the port's 9101 * sli4 capabilities. 9102 * 9103 * This function may be be called from any context that can block-wait 9104 * for the completion. The expectation is that this routine is called 9105 * typically from probe_one or from the online routine. 9106 **/ 9107 int 9108 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 9109 { 9110 int rc; 9111 struct lpfc_mqe *mqe = &mboxq->u.mqe; 9112 struct lpfc_pc_sli4_params *sli4_params; 9113 uint32_t mbox_tmo; 9114 int length; 9115 struct lpfc_sli4_parameters *mbx_sli4_parameters; 9116 9117 /* 9118 * By default, the driver assumes the SLI4 port requires RPI 9119 * header postings. The SLI4_PARAM response will correct this 9120 * assumption. 9121 */ 9122 phba->sli4_hba.rpi_hdrs_in_use = 1; 9123 9124 /* Read the port's SLI4 Config Parameters */ 9125 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 9126 sizeof(struct lpfc_sli4_cfg_mhdr)); 9127 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 9128 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 9129 length, LPFC_SLI4_MBX_EMBED); 9130 if (!phba->sli4_hba.intr_enable) 9131 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9132 else { 9133 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 9134 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 9135 } 9136 if (unlikely(rc)) 9137 return rc; 9138 sli4_params = &phba->sli4_hba.pc_sli4_params; 9139 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 9140 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 9141 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 9142 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 9143 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 9144 mbx_sli4_parameters); 9145 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 9146 mbx_sli4_parameters); 9147 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 9148 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 9149 else 9150 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 9151 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 9152 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 9153 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 9154 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 9155 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 9156 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 9157 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 9158 mbx_sli4_parameters); 9159 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 9160 mbx_sli4_parameters); 9161 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 9162 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 9163 9164 /* Make sure that sge_supp_len can be handled by the driver */ 9165 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 9166 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 9167 9168 return 0; 9169 } 9170 9171 /** 9172 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 9173 * @pdev: pointer to PCI device 9174 * @pid: pointer to PCI device identifier 9175 * 9176 * This routine is to be called to attach a device with SLI-3 interface spec 9177 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 9178 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 9179 * information of the device and driver to see if the driver state that it can 9180 * support this kind of device. If the match is successful, the driver core 9181 * invokes this routine. If this routine determines it can claim the HBA, it 9182 * does all the initialization that it needs to do to handle the HBA properly. 9183 * 9184 * Return code 9185 * 0 - driver can claim the device 9186 * negative value - driver can not claim the device 9187 **/ 9188 static int 9189 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 9190 { 9191 struct lpfc_hba *phba; 9192 struct lpfc_vport *vport = NULL; 9193 struct Scsi_Host *shost = NULL; 9194 int error; 9195 uint32_t cfg_mode, intr_mode; 9196 9197 /* Allocate memory for HBA structure */ 9198 phba = lpfc_hba_alloc(pdev); 9199 if (!phba) 9200 return -ENOMEM; 9201 9202 /* Perform generic PCI device enabling operation */ 9203 error = lpfc_enable_pci_dev(phba); 9204 if (error) 9205 goto out_free_phba; 9206 9207 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 9208 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 9209 if (error) 9210 goto out_disable_pci_dev; 9211 9212 /* Set up SLI-3 specific device PCI memory space */ 9213 error = lpfc_sli_pci_mem_setup(phba); 9214 if (error) { 9215 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9216 "1402 Failed to set up pci memory space.\n"); 9217 goto out_disable_pci_dev; 9218 } 9219 9220 /* Set up phase-1 common device driver resources */ 9221 error = lpfc_setup_driver_resource_phase1(phba); 9222 if (error) { 9223 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9224 "1403 Failed to set up driver resource.\n"); 9225 goto out_unset_pci_mem_s3; 9226 } 9227 9228 /* Set up SLI-3 specific device driver resources */ 9229 error = lpfc_sli_driver_resource_setup(phba); 9230 if (error) { 9231 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9232 "1404 Failed to set up driver resource.\n"); 9233 goto out_unset_pci_mem_s3; 9234 } 9235 9236 /* Initialize and populate the iocb list per host */ 9237 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 9238 if (error) { 9239 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9240 "1405 Failed to initialize iocb list.\n"); 9241 goto out_unset_driver_resource_s3; 9242 } 9243 9244 /* Set up common device driver resources */ 9245 error = lpfc_setup_driver_resource_phase2(phba); 9246 if (error) { 9247 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9248 "1406 Failed to set up driver resource.\n"); 9249 goto out_free_iocb_list; 9250 } 9251 9252 /* Get the default values for Model Name and Description */ 9253 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 9254 9255 /* Create SCSI host to the physical port */ 9256 error = lpfc_create_shost(phba); 9257 if (error) { 9258 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9259 "1407 Failed to create scsi host.\n"); 9260 goto out_unset_driver_resource; 9261 } 9262 9263 /* Configure sysfs attributes */ 9264 vport = phba->pport; 9265 error = lpfc_alloc_sysfs_attr(vport); 9266 if (error) { 9267 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9268 "1476 Failed to allocate sysfs attr\n"); 9269 goto out_destroy_shost; 9270 } 9271 9272 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 9273 /* Now, trying to enable interrupt and bring up the device */ 9274 cfg_mode = phba->cfg_use_msi; 9275 while (true) { 9276 /* Put device to a known state before enabling interrupt */ 9277 lpfc_stop_port(phba); 9278 /* Configure and enable interrupt */ 9279 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 9280 if (intr_mode == LPFC_INTR_ERROR) { 9281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9282 "0431 Failed to enable interrupt.\n"); 9283 error = -ENODEV; 9284 goto out_free_sysfs_attr; 9285 } 9286 /* SLI-3 HBA setup */ 9287 if (lpfc_sli_hba_setup(phba)) { 9288 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9289 "1477 Failed to set up hba\n"); 9290 error = -ENODEV; 9291 goto out_remove_device; 9292 } 9293 9294 /* Wait 50ms for the interrupts of previous mailbox commands */ 9295 msleep(50); 9296 /* Check active interrupts on message signaled interrupts */ 9297 if (intr_mode == 0 || 9298 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 9299 /* Log the current active interrupt mode */ 9300 phba->intr_mode = intr_mode; 9301 lpfc_log_intr_mode(phba, intr_mode); 9302 break; 9303 } else { 9304 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9305 "0447 Configure interrupt mode (%d) " 9306 "failed active interrupt test.\n", 9307 intr_mode); 9308 /* Disable the current interrupt mode */ 9309 lpfc_sli_disable_intr(phba); 9310 /* Try next level of interrupt mode */ 9311 cfg_mode = --intr_mode; 9312 } 9313 } 9314 9315 /* Perform post initialization setup */ 9316 lpfc_post_init_setup(phba); 9317 9318 /* Check if there are static vports to be created. */ 9319 lpfc_create_static_vport(phba); 9320 9321 return 0; 9322 9323 out_remove_device: 9324 lpfc_unset_hba(phba); 9325 out_free_sysfs_attr: 9326 lpfc_free_sysfs_attr(vport); 9327 out_destroy_shost: 9328 lpfc_destroy_shost(phba); 9329 out_unset_driver_resource: 9330 lpfc_unset_driver_resource_phase2(phba); 9331 out_free_iocb_list: 9332 lpfc_free_iocb_list(phba); 9333 out_unset_driver_resource_s3: 9334 lpfc_sli_driver_resource_unset(phba); 9335 out_unset_pci_mem_s3: 9336 lpfc_sli_pci_mem_unset(phba); 9337 out_disable_pci_dev: 9338 lpfc_disable_pci_dev(phba); 9339 if (shost) 9340 scsi_host_put(shost); 9341 out_free_phba: 9342 lpfc_hba_free(phba); 9343 return error; 9344 } 9345 9346 /** 9347 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 9348 * @pdev: pointer to PCI device 9349 * 9350 * This routine is to be called to disattach a device with SLI-3 interface 9351 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 9352 * removed from PCI bus, it performs all the necessary cleanup for the HBA 9353 * device to be removed from the PCI subsystem properly. 9354 **/ 9355 static void 9356 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 9357 { 9358 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9359 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 9360 struct lpfc_vport **vports; 9361 struct lpfc_hba *phba = vport->phba; 9362 int i; 9363 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 9364 9365 spin_lock_irq(&phba->hbalock); 9366 vport->load_flag |= FC_UNLOADING; 9367 spin_unlock_irq(&phba->hbalock); 9368 9369 lpfc_free_sysfs_attr(vport); 9370 9371 /* Release all the vports against this physical port */ 9372 vports = lpfc_create_vport_work_array(phba); 9373 if (vports != NULL) 9374 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 9375 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 9376 continue; 9377 fc_vport_terminate(vports[i]->fc_vport); 9378 } 9379 lpfc_destroy_vport_work_array(phba, vports); 9380 9381 /* Remove FC host and then SCSI host with the physical port */ 9382 fc_remove_host(shost); 9383 scsi_remove_host(shost); 9384 lpfc_cleanup(vport); 9385 9386 /* 9387 * Bring down the SLI Layer. This step disable all interrupts, 9388 * clears the rings, discards all mailbox commands, and resets 9389 * the HBA. 9390 */ 9391 9392 /* HBA interrupt will be disabled after this call */ 9393 lpfc_sli_hba_down(phba); 9394 /* Stop kthread signal shall trigger work_done one more time */ 9395 kthread_stop(phba->worker_thread); 9396 /* Final cleanup of txcmplq and reset the HBA */ 9397 lpfc_sli_brdrestart(phba); 9398 9399 kfree(phba->vpi_bmask); 9400 kfree(phba->vpi_ids); 9401 9402 lpfc_stop_hba_timers(phba); 9403 spin_lock_irq(&phba->hbalock); 9404 list_del_init(&vport->listentry); 9405 spin_unlock_irq(&phba->hbalock); 9406 9407 lpfc_debugfs_terminate(vport); 9408 9409 /* Disable SR-IOV if enabled */ 9410 if (phba->cfg_sriov_nr_virtfn) 9411 pci_disable_sriov(pdev); 9412 9413 /* Disable interrupt */ 9414 lpfc_sli_disable_intr(phba); 9415 9416 pci_set_drvdata(pdev, NULL); 9417 scsi_host_put(shost); 9418 9419 /* 9420 * Call scsi_free before mem_free since scsi bufs are released to their 9421 * corresponding pools here. 9422 */ 9423 lpfc_scsi_free(phba); 9424 lpfc_mem_free_all(phba); 9425 9426 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 9427 phba->hbqslimp.virt, phba->hbqslimp.phys); 9428 9429 /* Free resources associated with SLI2 interface */ 9430 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 9431 phba->slim2p.virt, phba->slim2p.phys); 9432 9433 /* unmap adapter SLIM and Control Registers */ 9434 iounmap(phba->ctrl_regs_memmap_p); 9435 iounmap(phba->slim_memmap_p); 9436 9437 lpfc_hba_free(phba); 9438 9439 pci_release_selected_regions(pdev, bars); 9440 pci_disable_device(pdev); 9441 } 9442 9443 /** 9444 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 9445 * @pdev: pointer to PCI device 9446 * @msg: power management message 9447 * 9448 * This routine is to be called from the kernel's PCI subsystem to support 9449 * system Power Management (PM) to device with SLI-3 interface spec. When 9450 * PM invokes this method, it quiesces the device by stopping the driver's 9451 * worker thread for the device, turning off device's interrupt and DMA, 9452 * and bring the device offline. Note that as the driver implements the 9453 * minimum PM requirements to a power-aware driver's PM support for the 9454 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 9455 * to the suspend() method call will be treated as SUSPEND and the driver will 9456 * fully reinitialize its device during resume() method call, the driver will 9457 * set device to PCI_D3hot state in PCI config space instead of setting it 9458 * according to the @msg provided by the PM. 9459 * 9460 * Return code 9461 * 0 - driver suspended the device 9462 * Error otherwise 9463 **/ 9464 static int 9465 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 9466 { 9467 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9468 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9469 9470 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9471 "0473 PCI device Power Management suspend.\n"); 9472 9473 /* Bring down the device */ 9474 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 9475 lpfc_offline(phba); 9476 kthread_stop(phba->worker_thread); 9477 9478 /* Disable interrupt from device */ 9479 lpfc_sli_disable_intr(phba); 9480 9481 /* Save device state to PCI config space */ 9482 pci_save_state(pdev); 9483 pci_set_power_state(pdev, PCI_D3hot); 9484 9485 return 0; 9486 } 9487 9488 /** 9489 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 9490 * @pdev: pointer to PCI device 9491 * 9492 * This routine is to be called from the kernel's PCI subsystem to support 9493 * system Power Management (PM) to device with SLI-3 interface spec. When PM 9494 * invokes this method, it restores the device's PCI config space state and 9495 * fully reinitializes the device and brings it online. Note that as the 9496 * driver implements the minimum PM requirements to a power-aware driver's 9497 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 9498 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 9499 * driver will fully reinitialize its device during resume() method call, 9500 * the device will be set to PCI_D0 directly in PCI config space before 9501 * restoring the state. 9502 * 9503 * Return code 9504 * 0 - driver suspended the device 9505 * Error otherwise 9506 **/ 9507 static int 9508 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 9509 { 9510 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9511 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9512 uint32_t intr_mode; 9513 int error; 9514 9515 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9516 "0452 PCI device Power Management resume.\n"); 9517 9518 /* Restore device state from PCI config space */ 9519 pci_set_power_state(pdev, PCI_D0); 9520 pci_restore_state(pdev); 9521 9522 /* 9523 * As the new kernel behavior of pci_restore_state() API call clears 9524 * device saved_state flag, need to save the restored state again. 9525 */ 9526 pci_save_state(pdev); 9527 9528 if (pdev->is_busmaster) 9529 pci_set_master(pdev); 9530 9531 /* Startup the kernel thread for this host adapter. */ 9532 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9533 "lpfc_worker_%d", phba->brd_no); 9534 if (IS_ERR(phba->worker_thread)) { 9535 error = PTR_ERR(phba->worker_thread); 9536 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9537 "0434 PM resume failed to start worker " 9538 "thread: error=x%x.\n", error); 9539 return error; 9540 } 9541 9542 /* Configure and enable interrupt */ 9543 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 9544 if (intr_mode == LPFC_INTR_ERROR) { 9545 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9546 "0430 PM resume Failed to enable interrupt\n"); 9547 return -EIO; 9548 } else 9549 phba->intr_mode = intr_mode; 9550 9551 /* Restart HBA and bring it online */ 9552 lpfc_sli_brdrestart(phba); 9553 lpfc_online(phba); 9554 9555 /* Log the current active interrupt mode */ 9556 lpfc_log_intr_mode(phba, phba->intr_mode); 9557 9558 return 0; 9559 } 9560 9561 /** 9562 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 9563 * @phba: pointer to lpfc hba data structure. 9564 * 9565 * This routine is called to prepare the SLI3 device for PCI slot recover. It 9566 * aborts all the outstanding SCSI I/Os to the pci device. 9567 **/ 9568 static void 9569 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 9570 { 9571 struct lpfc_sli *psli = &phba->sli; 9572 struct lpfc_sli_ring *pring; 9573 9574 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9575 "2723 PCI channel I/O abort preparing for recovery\n"); 9576 9577 /* 9578 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9579 * and let the SCSI mid-layer to retry them to recover. 9580 */ 9581 pring = &psli->ring[psli->fcp_ring]; 9582 lpfc_sli_abort_iocb_ring(phba, pring); 9583 } 9584 9585 /** 9586 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 9587 * @phba: pointer to lpfc hba data structure. 9588 * 9589 * This routine is called to prepare the SLI3 device for PCI slot reset. It 9590 * disables the device interrupt and pci device, and aborts the internal FCP 9591 * pending I/Os. 9592 **/ 9593 static void 9594 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 9595 { 9596 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9597 "2710 PCI channel disable preparing for reset\n"); 9598 9599 /* Block any management I/Os to the device */ 9600 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 9601 9602 /* Block all SCSI devices' I/Os on the host */ 9603 lpfc_scsi_dev_block(phba); 9604 9605 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9606 lpfc_sli_flush_fcp_rings(phba); 9607 9608 /* stop all timers */ 9609 lpfc_stop_hba_timers(phba); 9610 9611 /* Disable interrupt and pci device */ 9612 lpfc_sli_disable_intr(phba); 9613 pci_disable_device(phba->pcidev); 9614 } 9615 9616 /** 9617 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 9618 * @phba: pointer to lpfc hba data structure. 9619 * 9620 * This routine is called to prepare the SLI3 device for PCI slot permanently 9621 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9622 * pending I/Os. 9623 **/ 9624 static void 9625 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9626 { 9627 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9628 "2711 PCI channel permanent disable for failure\n"); 9629 /* Block all SCSI devices' I/Os on the host */ 9630 lpfc_scsi_dev_block(phba); 9631 9632 /* stop all timers */ 9633 lpfc_stop_hba_timers(phba); 9634 9635 /* Clean up all driver's outstanding SCSI I/Os */ 9636 lpfc_sli_flush_fcp_rings(phba); 9637 } 9638 9639 /** 9640 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 9641 * @pdev: pointer to PCI device. 9642 * @state: the current PCI connection state. 9643 * 9644 * This routine is called from the PCI subsystem for I/O error handling to 9645 * device with SLI-3 interface spec. This function is called by the PCI 9646 * subsystem after a PCI bus error affecting this device has been detected. 9647 * When this function is invoked, it will need to stop all the I/Os and 9648 * interrupt(s) to the device. Once that is done, it will return 9649 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 9650 * as desired. 9651 * 9652 * Return codes 9653 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 9654 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9655 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9656 **/ 9657 static pci_ers_result_t 9658 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 9659 { 9660 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9661 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9662 9663 switch (state) { 9664 case pci_channel_io_normal: 9665 /* Non-fatal error, prepare for recovery */ 9666 lpfc_sli_prep_dev_for_recover(phba); 9667 return PCI_ERS_RESULT_CAN_RECOVER; 9668 case pci_channel_io_frozen: 9669 /* Fatal error, prepare for slot reset */ 9670 lpfc_sli_prep_dev_for_reset(phba); 9671 return PCI_ERS_RESULT_NEED_RESET; 9672 case pci_channel_io_perm_failure: 9673 /* Permanent failure, prepare for device down */ 9674 lpfc_sli_prep_dev_for_perm_failure(phba); 9675 return PCI_ERS_RESULT_DISCONNECT; 9676 default: 9677 /* Unknown state, prepare and request slot reset */ 9678 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9679 "0472 Unknown PCI error state: x%x\n", state); 9680 lpfc_sli_prep_dev_for_reset(phba); 9681 return PCI_ERS_RESULT_NEED_RESET; 9682 } 9683 } 9684 9685 /** 9686 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 9687 * @pdev: pointer to PCI device. 9688 * 9689 * This routine is called from the PCI subsystem for error handling to 9690 * device with SLI-3 interface spec. This is called after PCI bus has been 9691 * reset to restart the PCI card from scratch, as if from a cold-boot. 9692 * During the PCI subsystem error recovery, after driver returns 9693 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 9694 * recovery and then call this routine before calling the .resume method 9695 * to recover the device. This function will initialize the HBA device, 9696 * enable the interrupt, but it will just put the HBA to offline state 9697 * without passing any I/O traffic. 9698 * 9699 * Return codes 9700 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9701 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9702 */ 9703 static pci_ers_result_t 9704 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 9705 { 9706 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9707 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9708 struct lpfc_sli *psli = &phba->sli; 9709 uint32_t intr_mode; 9710 9711 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9712 if (pci_enable_device_mem(pdev)) { 9713 printk(KERN_ERR "lpfc: Cannot re-enable " 9714 "PCI device after reset.\n"); 9715 return PCI_ERS_RESULT_DISCONNECT; 9716 } 9717 9718 pci_restore_state(pdev); 9719 9720 /* 9721 * As the new kernel behavior of pci_restore_state() API call clears 9722 * device saved_state flag, need to save the restored state again. 9723 */ 9724 pci_save_state(pdev); 9725 9726 if (pdev->is_busmaster) 9727 pci_set_master(pdev); 9728 9729 spin_lock_irq(&phba->hbalock); 9730 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 9731 spin_unlock_irq(&phba->hbalock); 9732 9733 /* Configure and enable interrupt */ 9734 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 9735 if (intr_mode == LPFC_INTR_ERROR) { 9736 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9737 "0427 Cannot re-enable interrupt after " 9738 "slot reset.\n"); 9739 return PCI_ERS_RESULT_DISCONNECT; 9740 } else 9741 phba->intr_mode = intr_mode; 9742 9743 /* Take device offline, it will perform cleanup */ 9744 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 9745 lpfc_offline(phba); 9746 lpfc_sli_brdrestart(phba); 9747 9748 /* Log the current active interrupt mode */ 9749 lpfc_log_intr_mode(phba, phba->intr_mode); 9750 9751 return PCI_ERS_RESULT_RECOVERED; 9752 } 9753 9754 /** 9755 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 9756 * @pdev: pointer to PCI device 9757 * 9758 * This routine is called from the PCI subsystem for error handling to device 9759 * with SLI-3 interface spec. It is called when kernel error recovery tells 9760 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 9761 * error recovery. After this call, traffic can start to flow from this device 9762 * again. 9763 */ 9764 static void 9765 lpfc_io_resume_s3(struct pci_dev *pdev) 9766 { 9767 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9768 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9769 9770 /* Bring device online, it will be no-op for non-fatal error resume */ 9771 lpfc_online(phba); 9772 9773 /* Clean up Advanced Error Reporting (AER) if needed */ 9774 if (phba->hba_flag & HBA_AER_ENABLED) 9775 pci_cleanup_aer_uncorrect_error_status(pdev); 9776 } 9777 9778 /** 9779 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 9780 * @phba: pointer to lpfc hba data structure. 9781 * 9782 * returns the number of ELS/CT IOCBs to reserve 9783 **/ 9784 int 9785 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 9786 { 9787 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 9788 9789 if (phba->sli_rev == LPFC_SLI_REV4) { 9790 if (max_xri <= 100) 9791 return 10; 9792 else if (max_xri <= 256) 9793 return 25; 9794 else if (max_xri <= 512) 9795 return 50; 9796 else if (max_xri <= 1024) 9797 return 100; 9798 else if (max_xri <= 1536) 9799 return 150; 9800 else if (max_xri <= 2048) 9801 return 200; 9802 else 9803 return 250; 9804 } else 9805 return 0; 9806 } 9807 9808 /** 9809 * lpfc_write_firmware - attempt to write a firmware image to the port 9810 * @fw: pointer to firmware image returned from request_firmware. 9811 * @phba: pointer to lpfc hba data structure. 9812 * 9813 **/ 9814 static void 9815 lpfc_write_firmware(const struct firmware *fw, void *context) 9816 { 9817 struct lpfc_hba *phba = (struct lpfc_hba *)context; 9818 char fwrev[FW_REV_STR_SIZE]; 9819 struct lpfc_grp_hdr *image; 9820 struct list_head dma_buffer_list; 9821 int i, rc = 0; 9822 struct lpfc_dmabuf *dmabuf, *next; 9823 uint32_t offset = 0, temp_offset = 0; 9824 9825 /* It can be null in no-wait mode, sanity check */ 9826 if (!fw) { 9827 rc = -ENXIO; 9828 goto out; 9829 } 9830 image = (struct lpfc_grp_hdr *)fw->data; 9831 9832 INIT_LIST_HEAD(&dma_buffer_list); 9833 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) || 9834 (bf_get_be32(lpfc_grp_hdr_file_type, image) != 9835 LPFC_FILE_TYPE_GROUP) || 9836 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) || 9837 (be32_to_cpu(image->size) != fw->size)) { 9838 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9839 "3022 Invalid FW image found. " 9840 "Magic:%x Type:%x ID:%x\n", 9841 be32_to_cpu(image->magic_number), 9842 bf_get_be32(lpfc_grp_hdr_file_type, image), 9843 bf_get_be32(lpfc_grp_hdr_id, image)); 9844 rc = -EINVAL; 9845 goto release_out; 9846 } 9847 lpfc_decode_firmware_rev(phba, fwrev, 1); 9848 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 9849 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9850 "3023 Updating Firmware, Current Version:%s " 9851 "New Version:%s\n", 9852 fwrev, image->revision); 9853 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 9854 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 9855 GFP_KERNEL); 9856 if (!dmabuf) { 9857 rc = -ENOMEM; 9858 goto release_out; 9859 } 9860 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 9861 SLI4_PAGE_SIZE, 9862 &dmabuf->phys, 9863 GFP_KERNEL); 9864 if (!dmabuf->virt) { 9865 kfree(dmabuf); 9866 rc = -ENOMEM; 9867 goto release_out; 9868 } 9869 list_add_tail(&dmabuf->list, &dma_buffer_list); 9870 } 9871 while (offset < fw->size) { 9872 temp_offset = offset; 9873 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 9874 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 9875 memcpy(dmabuf->virt, 9876 fw->data + temp_offset, 9877 fw->size - temp_offset); 9878 temp_offset = fw->size; 9879 break; 9880 } 9881 memcpy(dmabuf->virt, fw->data + temp_offset, 9882 SLI4_PAGE_SIZE); 9883 temp_offset += SLI4_PAGE_SIZE; 9884 } 9885 rc = lpfc_wr_object(phba, &dma_buffer_list, 9886 (fw->size - offset), &offset); 9887 if (rc) 9888 goto release_out; 9889 } 9890 rc = offset; 9891 } 9892 9893 release_out: 9894 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 9895 list_del(&dmabuf->list); 9896 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 9897 dmabuf->virt, dmabuf->phys); 9898 kfree(dmabuf); 9899 } 9900 release_firmware(fw); 9901 out: 9902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9903 "3024 Firmware update done: %d.\n", rc); 9904 return; 9905 } 9906 9907 /** 9908 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 9909 * @phba: pointer to lpfc hba data structure. 9910 * 9911 * This routine is called to perform Linux generic firmware upgrade on device 9912 * that supports such feature. 9913 **/ 9914 int 9915 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 9916 { 9917 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 9918 int ret; 9919 const struct firmware *fw; 9920 9921 /* Only supported on SLI4 interface type 2 for now */ 9922 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 9923 LPFC_SLI_INTF_IF_TYPE_2) 9924 return -EPERM; 9925 9926 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 9927 9928 if (fw_upgrade == INT_FW_UPGRADE) { 9929 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 9930 file_name, &phba->pcidev->dev, 9931 GFP_KERNEL, (void *)phba, 9932 lpfc_write_firmware); 9933 } else if (fw_upgrade == RUN_FW_UPGRADE) { 9934 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 9935 if (!ret) 9936 lpfc_write_firmware(fw, (void *)phba); 9937 } else { 9938 ret = -EINVAL; 9939 } 9940 9941 return ret; 9942 } 9943 9944 /** 9945 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 9946 * @pdev: pointer to PCI device 9947 * @pid: pointer to PCI device identifier 9948 * 9949 * This routine is called from the kernel's PCI subsystem to device with 9950 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9951 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 9952 * information of the device and driver to see if the driver state that it 9953 * can support this kind of device. If the match is successful, the driver 9954 * core invokes this routine. If this routine determines it can claim the HBA, 9955 * it does all the initialization that it needs to do to handle the HBA 9956 * properly. 9957 * 9958 * Return code 9959 * 0 - driver can claim the device 9960 * negative value - driver can not claim the device 9961 **/ 9962 static int 9963 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 9964 { 9965 struct lpfc_hba *phba; 9966 struct lpfc_vport *vport = NULL; 9967 struct Scsi_Host *shost = NULL; 9968 int error, ret; 9969 uint32_t cfg_mode, intr_mode; 9970 int adjusted_fcp_io_channel; 9971 9972 /* Allocate memory for HBA structure */ 9973 phba = lpfc_hba_alloc(pdev); 9974 if (!phba) 9975 return -ENOMEM; 9976 9977 /* Perform generic PCI device enabling operation */ 9978 error = lpfc_enable_pci_dev(phba); 9979 if (error) 9980 goto out_free_phba; 9981 9982 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 9983 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 9984 if (error) 9985 goto out_disable_pci_dev; 9986 9987 /* Set up SLI-4 specific device PCI memory space */ 9988 error = lpfc_sli4_pci_mem_setup(phba); 9989 if (error) { 9990 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9991 "1410 Failed to set up pci memory space.\n"); 9992 goto out_disable_pci_dev; 9993 } 9994 9995 /* Set up phase-1 common device driver resources */ 9996 error = lpfc_setup_driver_resource_phase1(phba); 9997 if (error) { 9998 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9999 "1411 Failed to set up driver resource.\n"); 10000 goto out_unset_pci_mem_s4; 10001 } 10002 10003 /* Set up SLI-4 Specific device driver resources */ 10004 error = lpfc_sli4_driver_resource_setup(phba); 10005 if (error) { 10006 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10007 "1412 Failed to set up driver resource.\n"); 10008 goto out_unset_pci_mem_s4; 10009 } 10010 10011 /* Initialize and populate the iocb list per host */ 10012 10013 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10014 "2821 initialize iocb list %d.\n", 10015 phba->cfg_iocb_cnt*1024); 10016 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 10017 10018 if (error) { 10019 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10020 "1413 Failed to initialize iocb list.\n"); 10021 goto out_unset_driver_resource_s4; 10022 } 10023 10024 INIT_LIST_HEAD(&phba->active_rrq_list); 10025 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 10026 10027 /* Set up common device driver resources */ 10028 error = lpfc_setup_driver_resource_phase2(phba); 10029 if (error) { 10030 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10031 "1414 Failed to set up driver resource.\n"); 10032 goto out_free_iocb_list; 10033 } 10034 10035 /* Get the default values for Model Name and Description */ 10036 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 10037 10038 /* Create SCSI host to the physical port */ 10039 error = lpfc_create_shost(phba); 10040 if (error) { 10041 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10042 "1415 Failed to create scsi host.\n"); 10043 goto out_unset_driver_resource; 10044 } 10045 10046 /* Configure sysfs attributes */ 10047 vport = phba->pport; 10048 error = lpfc_alloc_sysfs_attr(vport); 10049 if (error) { 10050 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10051 "1416 Failed to allocate sysfs attr\n"); 10052 goto out_destroy_shost; 10053 } 10054 10055 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 10056 /* Now, trying to enable interrupt and bring up the device */ 10057 cfg_mode = phba->cfg_use_msi; 10058 10059 /* Put device to a known state before enabling interrupt */ 10060 lpfc_stop_port(phba); 10061 /* Configure and enable interrupt */ 10062 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 10063 if (intr_mode == LPFC_INTR_ERROR) { 10064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10065 "0426 Failed to enable interrupt.\n"); 10066 error = -ENODEV; 10067 goto out_free_sysfs_attr; 10068 } 10069 /* Default to single EQ for non-MSI-X */ 10070 if (phba->intr_type != MSIX) 10071 adjusted_fcp_io_channel = 1; 10072 else 10073 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel; 10074 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel; 10075 /* Set up SLI-4 HBA */ 10076 if (lpfc_sli4_hba_setup(phba)) { 10077 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10078 "1421 Failed to set up hba\n"); 10079 error = -ENODEV; 10080 goto out_disable_intr; 10081 } 10082 10083 /* Log the current active interrupt mode */ 10084 phba->intr_mode = intr_mode; 10085 lpfc_log_intr_mode(phba, intr_mode); 10086 10087 /* Perform post initialization setup */ 10088 lpfc_post_init_setup(phba); 10089 10090 /* check for firmware upgrade or downgrade */ 10091 if (phba->cfg_request_firmware_upgrade) 10092 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 10093 10094 /* Check if there are static vports to be created. */ 10095 lpfc_create_static_vport(phba); 10096 return 0; 10097 10098 out_disable_intr: 10099 lpfc_sli4_disable_intr(phba); 10100 out_free_sysfs_attr: 10101 lpfc_free_sysfs_attr(vport); 10102 out_destroy_shost: 10103 lpfc_destroy_shost(phba); 10104 out_unset_driver_resource: 10105 lpfc_unset_driver_resource_phase2(phba); 10106 out_free_iocb_list: 10107 lpfc_free_iocb_list(phba); 10108 out_unset_driver_resource_s4: 10109 lpfc_sli4_driver_resource_unset(phba); 10110 out_unset_pci_mem_s4: 10111 lpfc_sli4_pci_mem_unset(phba); 10112 out_disable_pci_dev: 10113 lpfc_disable_pci_dev(phba); 10114 if (shost) 10115 scsi_host_put(shost); 10116 out_free_phba: 10117 lpfc_hba_free(phba); 10118 return error; 10119 } 10120 10121 /** 10122 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 10123 * @pdev: pointer to PCI device 10124 * 10125 * This routine is called from the kernel's PCI subsystem to device with 10126 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 10127 * removed from PCI bus, it performs all the necessary cleanup for the HBA 10128 * device to be removed from the PCI subsystem properly. 10129 **/ 10130 static void 10131 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 10132 { 10133 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10134 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 10135 struct lpfc_vport **vports; 10136 struct lpfc_hba *phba = vport->phba; 10137 int i; 10138 10139 /* Mark the device unloading flag */ 10140 spin_lock_irq(&phba->hbalock); 10141 vport->load_flag |= FC_UNLOADING; 10142 spin_unlock_irq(&phba->hbalock); 10143 10144 /* Free the HBA sysfs attributes */ 10145 lpfc_free_sysfs_attr(vport); 10146 10147 /* Release all the vports against this physical port */ 10148 vports = lpfc_create_vport_work_array(phba); 10149 if (vports != NULL) 10150 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 10151 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 10152 continue; 10153 fc_vport_terminate(vports[i]->fc_vport); 10154 } 10155 lpfc_destroy_vport_work_array(phba, vports); 10156 10157 /* Remove FC host and then SCSI host with the physical port */ 10158 fc_remove_host(shost); 10159 scsi_remove_host(shost); 10160 10161 /* Perform cleanup on the physical port */ 10162 lpfc_cleanup(vport); 10163 10164 /* 10165 * Bring down the SLI Layer. This step disables all interrupts, 10166 * clears the rings, discards all mailbox commands, and resets 10167 * the HBA FCoE function. 10168 */ 10169 lpfc_debugfs_terminate(vport); 10170 lpfc_sli4_hba_unset(phba); 10171 10172 spin_lock_irq(&phba->hbalock); 10173 list_del_init(&vport->listentry); 10174 spin_unlock_irq(&phba->hbalock); 10175 10176 /* Perform scsi free before driver resource_unset since scsi 10177 * buffers are released to their corresponding pools here. 10178 */ 10179 lpfc_scsi_free(phba); 10180 10181 lpfc_sli4_driver_resource_unset(phba); 10182 10183 /* Unmap adapter Control and Doorbell registers */ 10184 lpfc_sli4_pci_mem_unset(phba); 10185 10186 /* Release PCI resources and disable device's PCI function */ 10187 scsi_host_put(shost); 10188 lpfc_disable_pci_dev(phba); 10189 10190 /* Finally, free the driver's device data structure */ 10191 lpfc_hba_free(phba); 10192 10193 return; 10194 } 10195 10196 /** 10197 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 10198 * @pdev: pointer to PCI device 10199 * @msg: power management message 10200 * 10201 * This routine is called from the kernel's PCI subsystem to support system 10202 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 10203 * this method, it quiesces the device by stopping the driver's worker 10204 * thread for the device, turning off device's interrupt and DMA, and bring 10205 * the device offline. Note that as the driver implements the minimum PM 10206 * requirements to a power-aware driver's PM support for suspend/resume -- all 10207 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 10208 * method call will be treated as SUSPEND and the driver will fully 10209 * reinitialize its device during resume() method call, the driver will set 10210 * device to PCI_D3hot state in PCI config space instead of setting it 10211 * according to the @msg provided by the PM. 10212 * 10213 * Return code 10214 * 0 - driver suspended the device 10215 * Error otherwise 10216 **/ 10217 static int 10218 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 10219 { 10220 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10221 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10222 10223 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10224 "2843 PCI device Power Management suspend.\n"); 10225 10226 /* Bring down the device */ 10227 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10228 lpfc_offline(phba); 10229 kthread_stop(phba->worker_thread); 10230 10231 /* Disable interrupt from device */ 10232 lpfc_sli4_disable_intr(phba); 10233 lpfc_sli4_queue_destroy(phba); 10234 10235 /* Save device state to PCI config space */ 10236 pci_save_state(pdev); 10237 pci_set_power_state(pdev, PCI_D3hot); 10238 10239 return 0; 10240 } 10241 10242 /** 10243 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 10244 * @pdev: pointer to PCI device 10245 * 10246 * This routine is called from the kernel's PCI subsystem to support system 10247 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 10248 * this method, it restores the device's PCI config space state and fully 10249 * reinitializes the device and brings it online. Note that as the driver 10250 * implements the minimum PM requirements to a power-aware driver's PM for 10251 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 10252 * to the suspend() method call will be treated as SUSPEND and the driver 10253 * will fully reinitialize its device during resume() method call, the device 10254 * will be set to PCI_D0 directly in PCI config space before restoring the 10255 * state. 10256 * 10257 * Return code 10258 * 0 - driver suspended the device 10259 * Error otherwise 10260 **/ 10261 static int 10262 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 10263 { 10264 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10265 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10266 uint32_t intr_mode; 10267 int error; 10268 10269 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10270 "0292 PCI device Power Management resume.\n"); 10271 10272 /* Restore device state from PCI config space */ 10273 pci_set_power_state(pdev, PCI_D0); 10274 pci_restore_state(pdev); 10275 10276 /* 10277 * As the new kernel behavior of pci_restore_state() API call clears 10278 * device saved_state flag, need to save the restored state again. 10279 */ 10280 pci_save_state(pdev); 10281 10282 if (pdev->is_busmaster) 10283 pci_set_master(pdev); 10284 10285 /* Startup the kernel thread for this host adapter. */ 10286 phba->worker_thread = kthread_run(lpfc_do_work, phba, 10287 "lpfc_worker_%d", phba->brd_no); 10288 if (IS_ERR(phba->worker_thread)) { 10289 error = PTR_ERR(phba->worker_thread); 10290 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10291 "0293 PM resume failed to start worker " 10292 "thread: error=x%x.\n", error); 10293 return error; 10294 } 10295 10296 /* Configure and enable interrupt */ 10297 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 10298 if (intr_mode == LPFC_INTR_ERROR) { 10299 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10300 "0294 PM resume Failed to enable interrupt\n"); 10301 return -EIO; 10302 } else 10303 phba->intr_mode = intr_mode; 10304 10305 /* Restart HBA and bring it online */ 10306 lpfc_sli_brdrestart(phba); 10307 lpfc_online(phba); 10308 10309 /* Log the current active interrupt mode */ 10310 lpfc_log_intr_mode(phba, phba->intr_mode); 10311 10312 return 0; 10313 } 10314 10315 /** 10316 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 10317 * @phba: pointer to lpfc hba data structure. 10318 * 10319 * This routine is called to prepare the SLI4 device for PCI slot recover. It 10320 * aborts all the outstanding SCSI I/Os to the pci device. 10321 **/ 10322 static void 10323 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 10324 { 10325 struct lpfc_sli *psli = &phba->sli; 10326 struct lpfc_sli_ring *pring; 10327 10328 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10329 "2828 PCI channel I/O abort preparing for recovery\n"); 10330 /* 10331 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 10332 * and let the SCSI mid-layer to retry them to recover. 10333 */ 10334 pring = &psli->ring[psli->fcp_ring]; 10335 lpfc_sli_abort_iocb_ring(phba, pring); 10336 } 10337 10338 /** 10339 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 10340 * @phba: pointer to lpfc hba data structure. 10341 * 10342 * This routine is called to prepare the SLI4 device for PCI slot reset. It 10343 * disables the device interrupt and pci device, and aborts the internal FCP 10344 * pending I/Os. 10345 **/ 10346 static void 10347 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 10348 { 10349 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10350 "2826 PCI channel disable preparing for reset\n"); 10351 10352 /* Block any management I/Os to the device */ 10353 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 10354 10355 /* Block all SCSI devices' I/Os on the host */ 10356 lpfc_scsi_dev_block(phba); 10357 10358 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 10359 lpfc_sli_flush_fcp_rings(phba); 10360 10361 /* stop all timers */ 10362 lpfc_stop_hba_timers(phba); 10363 10364 /* Disable interrupt and pci device */ 10365 lpfc_sli4_disable_intr(phba); 10366 lpfc_sli4_queue_destroy(phba); 10367 pci_disable_device(phba->pcidev); 10368 } 10369 10370 /** 10371 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 10372 * @phba: pointer to lpfc hba data structure. 10373 * 10374 * This routine is called to prepare the SLI4 device for PCI slot permanently 10375 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 10376 * pending I/Os. 10377 **/ 10378 static void 10379 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 10380 { 10381 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10382 "2827 PCI channel permanent disable for failure\n"); 10383 10384 /* Block all SCSI devices' I/Os on the host */ 10385 lpfc_scsi_dev_block(phba); 10386 10387 /* stop all timers */ 10388 lpfc_stop_hba_timers(phba); 10389 10390 /* Clean up all driver's outstanding SCSI I/Os */ 10391 lpfc_sli_flush_fcp_rings(phba); 10392 } 10393 10394 /** 10395 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 10396 * @pdev: pointer to PCI device. 10397 * @state: the current PCI connection state. 10398 * 10399 * This routine is called from the PCI subsystem for error handling to device 10400 * with SLI-4 interface spec. This function is called by the PCI subsystem 10401 * after a PCI bus error affecting this device has been detected. When this 10402 * function is invoked, it will need to stop all the I/Os and interrupt(s) 10403 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 10404 * for the PCI subsystem to perform proper recovery as desired. 10405 * 10406 * Return codes 10407 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10408 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10409 **/ 10410 static pci_ers_result_t 10411 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 10412 { 10413 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10414 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10415 10416 switch (state) { 10417 case pci_channel_io_normal: 10418 /* Non-fatal error, prepare for recovery */ 10419 lpfc_sli4_prep_dev_for_recover(phba); 10420 return PCI_ERS_RESULT_CAN_RECOVER; 10421 case pci_channel_io_frozen: 10422 /* Fatal error, prepare for slot reset */ 10423 lpfc_sli4_prep_dev_for_reset(phba); 10424 return PCI_ERS_RESULT_NEED_RESET; 10425 case pci_channel_io_perm_failure: 10426 /* Permanent failure, prepare for device down */ 10427 lpfc_sli4_prep_dev_for_perm_failure(phba); 10428 return PCI_ERS_RESULT_DISCONNECT; 10429 default: 10430 /* Unknown state, prepare and request slot reset */ 10431 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10432 "2825 Unknown PCI error state: x%x\n", state); 10433 lpfc_sli4_prep_dev_for_reset(phba); 10434 return PCI_ERS_RESULT_NEED_RESET; 10435 } 10436 } 10437 10438 /** 10439 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 10440 * @pdev: pointer to PCI device. 10441 * 10442 * This routine is called from the PCI subsystem for error handling to device 10443 * with SLI-4 interface spec. It is called after PCI bus has been reset to 10444 * restart the PCI card from scratch, as if from a cold-boot. During the 10445 * PCI subsystem error recovery, after the driver returns 10446 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 10447 * recovery and then call this routine before calling the .resume method to 10448 * recover the device. This function will initialize the HBA device, enable 10449 * the interrupt, but it will just put the HBA to offline state without 10450 * passing any I/O traffic. 10451 * 10452 * Return codes 10453 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10454 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10455 */ 10456 static pci_ers_result_t 10457 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 10458 { 10459 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10460 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10461 struct lpfc_sli *psli = &phba->sli; 10462 uint32_t intr_mode; 10463 10464 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 10465 if (pci_enable_device_mem(pdev)) { 10466 printk(KERN_ERR "lpfc: Cannot re-enable " 10467 "PCI device after reset.\n"); 10468 return PCI_ERS_RESULT_DISCONNECT; 10469 } 10470 10471 pci_restore_state(pdev); 10472 10473 /* 10474 * As the new kernel behavior of pci_restore_state() API call clears 10475 * device saved_state flag, need to save the restored state again. 10476 */ 10477 pci_save_state(pdev); 10478 10479 if (pdev->is_busmaster) 10480 pci_set_master(pdev); 10481 10482 spin_lock_irq(&phba->hbalock); 10483 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10484 spin_unlock_irq(&phba->hbalock); 10485 10486 /* Configure and enable interrupt */ 10487 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 10488 if (intr_mode == LPFC_INTR_ERROR) { 10489 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10490 "2824 Cannot re-enable interrupt after " 10491 "slot reset.\n"); 10492 return PCI_ERS_RESULT_DISCONNECT; 10493 } else 10494 phba->intr_mode = intr_mode; 10495 10496 /* Log the current active interrupt mode */ 10497 lpfc_log_intr_mode(phba, phba->intr_mode); 10498 10499 return PCI_ERS_RESULT_RECOVERED; 10500 } 10501 10502 /** 10503 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 10504 * @pdev: pointer to PCI device 10505 * 10506 * This routine is called from the PCI subsystem for error handling to device 10507 * with SLI-4 interface spec. It is called when kernel error recovery tells 10508 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10509 * error recovery. After this call, traffic can start to flow from this device 10510 * again. 10511 **/ 10512 static void 10513 lpfc_io_resume_s4(struct pci_dev *pdev) 10514 { 10515 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10516 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10517 10518 /* 10519 * In case of slot reset, as function reset is performed through 10520 * mailbox command which needs DMA to be enabled, this operation 10521 * has to be moved to the io resume phase. Taking device offline 10522 * will perform the necessary cleanup. 10523 */ 10524 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 10525 /* Perform device reset */ 10526 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10527 lpfc_offline(phba); 10528 lpfc_sli_brdrestart(phba); 10529 /* Bring the device back online */ 10530 lpfc_online(phba); 10531 } 10532 10533 /* Clean up Advanced Error Reporting (AER) if needed */ 10534 if (phba->hba_flag & HBA_AER_ENABLED) 10535 pci_cleanup_aer_uncorrect_error_status(pdev); 10536 } 10537 10538 /** 10539 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 10540 * @pdev: pointer to PCI device 10541 * @pid: pointer to PCI device identifier 10542 * 10543 * This routine is to be registered to the kernel's PCI subsystem. When an 10544 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 10545 * at PCI device-specific information of the device and driver to see if the 10546 * driver state that it can support this kind of device. If the match is 10547 * successful, the driver core invokes this routine. This routine dispatches 10548 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 10549 * do all the initialization that it needs to do to handle the HBA device 10550 * properly. 10551 * 10552 * Return code 10553 * 0 - driver can claim the device 10554 * negative value - driver can not claim the device 10555 **/ 10556 static int 10557 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 10558 { 10559 int rc; 10560 struct lpfc_sli_intf intf; 10561 10562 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 10563 return -ENODEV; 10564 10565 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 10566 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 10567 rc = lpfc_pci_probe_one_s4(pdev, pid); 10568 else 10569 rc = lpfc_pci_probe_one_s3(pdev, pid); 10570 10571 return rc; 10572 } 10573 10574 /** 10575 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 10576 * @pdev: pointer to PCI device 10577 * 10578 * This routine is to be registered to the kernel's PCI subsystem. When an 10579 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 10580 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 10581 * remove routine, which will perform all the necessary cleanup for the 10582 * device to be removed from the PCI subsystem properly. 10583 **/ 10584 static void 10585 lpfc_pci_remove_one(struct pci_dev *pdev) 10586 { 10587 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10588 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10589 10590 switch (phba->pci_dev_grp) { 10591 case LPFC_PCI_DEV_LP: 10592 lpfc_pci_remove_one_s3(pdev); 10593 break; 10594 case LPFC_PCI_DEV_OC: 10595 lpfc_pci_remove_one_s4(pdev); 10596 break; 10597 default: 10598 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10599 "1424 Invalid PCI device group: 0x%x\n", 10600 phba->pci_dev_grp); 10601 break; 10602 } 10603 return; 10604 } 10605 10606 /** 10607 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 10608 * @pdev: pointer to PCI device 10609 * @msg: power management message 10610 * 10611 * This routine is to be registered to the kernel's PCI subsystem to support 10612 * system Power Management (PM). When PM invokes this method, it dispatches 10613 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 10614 * suspend the device. 10615 * 10616 * Return code 10617 * 0 - driver suspended the device 10618 * Error otherwise 10619 **/ 10620 static int 10621 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 10622 { 10623 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10624 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10625 int rc = -ENODEV; 10626 10627 switch (phba->pci_dev_grp) { 10628 case LPFC_PCI_DEV_LP: 10629 rc = lpfc_pci_suspend_one_s3(pdev, msg); 10630 break; 10631 case LPFC_PCI_DEV_OC: 10632 rc = lpfc_pci_suspend_one_s4(pdev, msg); 10633 break; 10634 default: 10635 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10636 "1425 Invalid PCI device group: 0x%x\n", 10637 phba->pci_dev_grp); 10638 break; 10639 } 10640 return rc; 10641 } 10642 10643 /** 10644 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 10645 * @pdev: pointer to PCI device 10646 * 10647 * This routine is to be registered to the kernel's PCI subsystem to support 10648 * system Power Management (PM). When PM invokes this method, it dispatches 10649 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 10650 * resume the device. 10651 * 10652 * Return code 10653 * 0 - driver suspended the device 10654 * Error otherwise 10655 **/ 10656 static int 10657 lpfc_pci_resume_one(struct pci_dev *pdev) 10658 { 10659 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10660 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10661 int rc = -ENODEV; 10662 10663 switch (phba->pci_dev_grp) { 10664 case LPFC_PCI_DEV_LP: 10665 rc = lpfc_pci_resume_one_s3(pdev); 10666 break; 10667 case LPFC_PCI_DEV_OC: 10668 rc = lpfc_pci_resume_one_s4(pdev); 10669 break; 10670 default: 10671 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10672 "1426 Invalid PCI device group: 0x%x\n", 10673 phba->pci_dev_grp); 10674 break; 10675 } 10676 return rc; 10677 } 10678 10679 /** 10680 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 10681 * @pdev: pointer to PCI device. 10682 * @state: the current PCI connection state. 10683 * 10684 * This routine is registered to the PCI subsystem for error handling. This 10685 * function is called by the PCI subsystem after a PCI bus error affecting 10686 * this device has been detected. When this routine is invoked, it dispatches 10687 * the action to the proper SLI-3 or SLI-4 device error detected handling 10688 * routine, which will perform the proper error detected operation. 10689 * 10690 * Return codes 10691 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10692 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10693 **/ 10694 static pci_ers_result_t 10695 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 10696 { 10697 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10698 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10699 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 10700 10701 switch (phba->pci_dev_grp) { 10702 case LPFC_PCI_DEV_LP: 10703 rc = lpfc_io_error_detected_s3(pdev, state); 10704 break; 10705 case LPFC_PCI_DEV_OC: 10706 rc = lpfc_io_error_detected_s4(pdev, state); 10707 break; 10708 default: 10709 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10710 "1427 Invalid PCI device group: 0x%x\n", 10711 phba->pci_dev_grp); 10712 break; 10713 } 10714 return rc; 10715 } 10716 10717 /** 10718 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 10719 * @pdev: pointer to PCI device. 10720 * 10721 * This routine is registered to the PCI subsystem for error handling. This 10722 * function is called after PCI bus has been reset to restart the PCI card 10723 * from scratch, as if from a cold-boot. When this routine is invoked, it 10724 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 10725 * routine, which will perform the proper device reset. 10726 * 10727 * Return codes 10728 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10729 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10730 **/ 10731 static pci_ers_result_t 10732 lpfc_io_slot_reset(struct pci_dev *pdev) 10733 { 10734 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10735 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10736 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 10737 10738 switch (phba->pci_dev_grp) { 10739 case LPFC_PCI_DEV_LP: 10740 rc = lpfc_io_slot_reset_s3(pdev); 10741 break; 10742 case LPFC_PCI_DEV_OC: 10743 rc = lpfc_io_slot_reset_s4(pdev); 10744 break; 10745 default: 10746 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10747 "1428 Invalid PCI device group: 0x%x\n", 10748 phba->pci_dev_grp); 10749 break; 10750 } 10751 return rc; 10752 } 10753 10754 /** 10755 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 10756 * @pdev: pointer to PCI device 10757 * 10758 * This routine is registered to the PCI subsystem for error handling. It 10759 * is called when kernel error recovery tells the lpfc driver that it is 10760 * OK to resume normal PCI operation after PCI bus error recovery. When 10761 * this routine is invoked, it dispatches the action to the proper SLI-3 10762 * or SLI-4 device io_resume routine, which will resume the device operation. 10763 **/ 10764 static void 10765 lpfc_io_resume(struct pci_dev *pdev) 10766 { 10767 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10768 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10769 10770 switch (phba->pci_dev_grp) { 10771 case LPFC_PCI_DEV_LP: 10772 lpfc_io_resume_s3(pdev); 10773 break; 10774 case LPFC_PCI_DEV_OC: 10775 lpfc_io_resume_s4(pdev); 10776 break; 10777 default: 10778 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10779 "1429 Invalid PCI device group: 0x%x\n", 10780 phba->pci_dev_grp); 10781 break; 10782 } 10783 return; 10784 } 10785 10786 static struct pci_device_id lpfc_id_table[] = { 10787 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 10788 PCI_ANY_ID, PCI_ANY_ID, }, 10789 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 10790 PCI_ANY_ID, PCI_ANY_ID, }, 10791 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 10792 PCI_ANY_ID, PCI_ANY_ID, }, 10793 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 10794 PCI_ANY_ID, PCI_ANY_ID, }, 10795 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 10796 PCI_ANY_ID, PCI_ANY_ID, }, 10797 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 10798 PCI_ANY_ID, PCI_ANY_ID, }, 10799 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 10800 PCI_ANY_ID, PCI_ANY_ID, }, 10801 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 10802 PCI_ANY_ID, PCI_ANY_ID, }, 10803 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 10804 PCI_ANY_ID, PCI_ANY_ID, }, 10805 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 10806 PCI_ANY_ID, PCI_ANY_ID, }, 10807 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 10808 PCI_ANY_ID, PCI_ANY_ID, }, 10809 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 10810 PCI_ANY_ID, PCI_ANY_ID, }, 10811 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 10812 PCI_ANY_ID, PCI_ANY_ID, }, 10813 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 10814 PCI_ANY_ID, PCI_ANY_ID, }, 10815 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 10816 PCI_ANY_ID, PCI_ANY_ID, }, 10817 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 10818 PCI_ANY_ID, PCI_ANY_ID, }, 10819 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 10820 PCI_ANY_ID, PCI_ANY_ID, }, 10821 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 10822 PCI_ANY_ID, PCI_ANY_ID, }, 10823 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 10824 PCI_ANY_ID, PCI_ANY_ID, }, 10825 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 10826 PCI_ANY_ID, PCI_ANY_ID, }, 10827 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 10828 PCI_ANY_ID, PCI_ANY_ID, }, 10829 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 10830 PCI_ANY_ID, PCI_ANY_ID, }, 10831 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 10832 PCI_ANY_ID, PCI_ANY_ID, }, 10833 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 10834 PCI_ANY_ID, PCI_ANY_ID, }, 10835 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 10836 PCI_ANY_ID, PCI_ANY_ID, }, 10837 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 10838 PCI_ANY_ID, PCI_ANY_ID, }, 10839 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 10840 PCI_ANY_ID, PCI_ANY_ID, }, 10841 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 10842 PCI_ANY_ID, PCI_ANY_ID, }, 10843 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 10844 PCI_ANY_ID, PCI_ANY_ID, }, 10845 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 10846 PCI_ANY_ID, PCI_ANY_ID, }, 10847 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 10848 PCI_ANY_ID, PCI_ANY_ID, }, 10849 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 10850 PCI_ANY_ID, PCI_ANY_ID, }, 10851 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 10852 PCI_ANY_ID, PCI_ANY_ID, }, 10853 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 10854 PCI_ANY_ID, PCI_ANY_ID, }, 10855 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 10856 PCI_ANY_ID, PCI_ANY_ID, }, 10857 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 10858 PCI_ANY_ID, PCI_ANY_ID, }, 10859 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 10860 PCI_ANY_ID, PCI_ANY_ID, }, 10861 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 10862 PCI_ANY_ID, PCI_ANY_ID, }, 10863 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 10864 PCI_ANY_ID, PCI_ANY_ID, }, 10865 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 10866 PCI_ANY_ID, PCI_ANY_ID, }, 10867 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 10868 PCI_ANY_ID, PCI_ANY_ID, }, 10869 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, 10870 PCI_ANY_ID, PCI_ANY_ID, }, 10871 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, 10872 PCI_ANY_ID, PCI_ANY_ID, }, 10873 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF, 10874 PCI_ANY_ID, PCI_ANY_ID, }, 10875 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF, 10876 PCI_ANY_ID, PCI_ANY_ID, }, 10877 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK, 10878 PCI_ANY_ID, PCI_ANY_ID, }, 10879 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF, 10880 PCI_ANY_ID, PCI_ANY_ID, }, 10881 { 0 } 10882 }; 10883 10884 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 10885 10886 static const struct pci_error_handlers lpfc_err_handler = { 10887 .error_detected = lpfc_io_error_detected, 10888 .slot_reset = lpfc_io_slot_reset, 10889 .resume = lpfc_io_resume, 10890 }; 10891 10892 static struct pci_driver lpfc_driver = { 10893 .name = LPFC_DRIVER_NAME, 10894 .id_table = lpfc_id_table, 10895 .probe = lpfc_pci_probe_one, 10896 .remove = lpfc_pci_remove_one, 10897 .suspend = lpfc_pci_suspend_one, 10898 .resume = lpfc_pci_resume_one, 10899 .err_handler = &lpfc_err_handler, 10900 }; 10901 10902 static const struct file_operations lpfc_mgmt_fop = { 10903 .owner = THIS_MODULE, 10904 }; 10905 10906 static struct miscdevice lpfc_mgmt_dev = { 10907 .minor = MISC_DYNAMIC_MINOR, 10908 .name = "lpfcmgmt", 10909 .fops = &lpfc_mgmt_fop, 10910 }; 10911 10912 /** 10913 * lpfc_init - lpfc module initialization routine 10914 * 10915 * This routine is to be invoked when the lpfc module is loaded into the 10916 * kernel. The special kernel macro module_init() is used to indicate the 10917 * role of this routine to the kernel as lpfc module entry point. 10918 * 10919 * Return codes 10920 * 0 - successful 10921 * -ENOMEM - FC attach transport failed 10922 * all others - failed 10923 */ 10924 static int __init 10925 lpfc_init(void) 10926 { 10927 int cpu; 10928 int error = 0; 10929 10930 printk(LPFC_MODULE_DESC "\n"); 10931 printk(LPFC_COPYRIGHT "\n"); 10932 10933 error = misc_register(&lpfc_mgmt_dev); 10934 if (error) 10935 printk(KERN_ERR "Could not register lpfcmgmt device, " 10936 "misc_register returned with status %d", error); 10937 10938 if (lpfc_enable_npiv) { 10939 lpfc_transport_functions.vport_create = lpfc_vport_create; 10940 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 10941 } 10942 lpfc_transport_template = 10943 fc_attach_transport(&lpfc_transport_functions); 10944 if (lpfc_transport_template == NULL) 10945 return -ENOMEM; 10946 if (lpfc_enable_npiv) { 10947 lpfc_vport_transport_template = 10948 fc_attach_transport(&lpfc_vport_transport_functions); 10949 if (lpfc_vport_transport_template == NULL) { 10950 fc_release_transport(lpfc_transport_template); 10951 return -ENOMEM; 10952 } 10953 } 10954 10955 /* Initialize in case vector mapping is needed */ 10956 lpfc_used_cpu = NULL; 10957 lpfc_present_cpu = 0; 10958 for_each_present_cpu(cpu) 10959 lpfc_present_cpu++; 10960 10961 error = pci_register_driver(&lpfc_driver); 10962 if (error) { 10963 fc_release_transport(lpfc_transport_template); 10964 if (lpfc_enable_npiv) 10965 fc_release_transport(lpfc_vport_transport_template); 10966 } 10967 10968 return error; 10969 } 10970 10971 /** 10972 * lpfc_exit - lpfc module removal routine 10973 * 10974 * This routine is invoked when the lpfc module is removed from the kernel. 10975 * The special kernel macro module_exit() is used to indicate the role of 10976 * this routine to the kernel as lpfc module exit point. 10977 */ 10978 static void __exit 10979 lpfc_exit(void) 10980 { 10981 misc_deregister(&lpfc_mgmt_dev); 10982 pci_unregister_driver(&lpfc_driver); 10983 fc_release_transport(lpfc_transport_template); 10984 if (lpfc_enable_npiv) 10985 fc_release_transport(lpfc_vport_transport_template); 10986 if (_dump_buf_data) { 10987 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 10988 "_dump_buf_data at 0x%p\n", 10989 (1L << _dump_buf_data_order), _dump_buf_data); 10990 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 10991 } 10992 10993 if (_dump_buf_dif) { 10994 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 10995 "_dump_buf_dif at 0x%p\n", 10996 (1L << _dump_buf_dif_order), _dump_buf_dif); 10997 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 10998 } 10999 kfree(lpfc_used_cpu); 11000 } 11001 11002 module_init(lpfc_init); 11003 module_exit(lpfc_exit); 11004 MODULE_LICENSE("GPL"); 11005 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 11006 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 11007 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 11008