1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/delay.h> 26 #include <linux/dma-mapping.h> 27 #include <linux/idr.h> 28 #include <linux/interrupt.h> 29 #include <linux/module.h> 30 #include <linux/kthread.h> 31 #include <linux/pci.h> 32 #include <linux/spinlock.h> 33 #include <linux/ctype.h> 34 #include <linux/aer.h> 35 #include <linux/slab.h> 36 #include <linux/firmware.h> 37 #include <linux/miscdevice.h> 38 #include <linux/percpu.h> 39 #include <linux/msi.h> 40 41 #include <scsi/scsi.h> 42 #include <scsi/scsi_device.h> 43 #include <scsi/scsi_host.h> 44 #include <scsi/scsi_transport_fc.h> 45 46 #include "lpfc_hw4.h" 47 #include "lpfc_hw.h" 48 #include "lpfc_sli.h" 49 #include "lpfc_sli4.h" 50 #include "lpfc_nl.h" 51 #include "lpfc_disc.h" 52 #include "lpfc.h" 53 #include "lpfc_scsi.h" 54 #include "lpfc_nvme.h" 55 #include "lpfc_logmsg.h" 56 #include "lpfc_crtn.h" 57 #include "lpfc_vport.h" 58 #include "lpfc_version.h" 59 #include "lpfc_ids.h" 60 61 char *_dump_buf_data; 62 unsigned long _dump_buf_data_order; 63 char *_dump_buf_dif; 64 unsigned long _dump_buf_dif_order; 65 spinlock_t _dump_buf_lock; 66 67 /* Used when mapping IRQ vectors in a driver centric manner */ 68 uint16_t *lpfc_used_cpu; 69 uint32_t lpfc_present_cpu; 70 71 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 72 static int lpfc_post_rcv_buf(struct lpfc_hba *); 73 static int lpfc_sli4_queue_verify(struct lpfc_hba *); 74 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 75 static int lpfc_setup_endian_order(struct lpfc_hba *); 76 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 77 static void lpfc_free_els_sgl_list(struct lpfc_hba *); 78 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *); 79 static void lpfc_init_sgl_list(struct lpfc_hba *); 80 static int lpfc_init_active_sgl_array(struct lpfc_hba *); 81 static void lpfc_free_active_sgl(struct lpfc_hba *); 82 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 83 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 84 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 85 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 86 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 87 static void lpfc_sli4_disable_intr(struct lpfc_hba *); 88 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t); 89 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba); 90 91 static struct scsi_transport_template *lpfc_transport_template = NULL; 92 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 93 static DEFINE_IDR(lpfc_hba_index); 94 #define LPFC_NVMET_BUF_POST 254 95 96 /** 97 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 98 * @phba: pointer to lpfc hba data structure. 99 * 100 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 101 * mailbox command. It retrieves the revision information from the HBA and 102 * collects the Vital Product Data (VPD) about the HBA for preparing the 103 * configuration of the HBA. 104 * 105 * Return codes: 106 * 0 - success. 107 * -ERESTART - requests the SLI layer to reset the HBA and try again. 108 * Any other value - indicates an error. 109 **/ 110 int 111 lpfc_config_port_prep(struct lpfc_hba *phba) 112 { 113 lpfc_vpd_t *vp = &phba->vpd; 114 int i = 0, rc; 115 LPFC_MBOXQ_t *pmb; 116 MAILBOX_t *mb; 117 char *lpfc_vpd_data = NULL; 118 uint16_t offset = 0; 119 static char licensed[56] = 120 "key unlock for use with gnu public licensed code only\0"; 121 static int init_key = 1; 122 123 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 124 if (!pmb) { 125 phba->link_state = LPFC_HBA_ERROR; 126 return -ENOMEM; 127 } 128 129 mb = &pmb->u.mb; 130 phba->link_state = LPFC_INIT_MBX_CMDS; 131 132 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 133 if (init_key) { 134 uint32_t *ptext = (uint32_t *) licensed; 135 136 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 137 *ptext = cpu_to_be32(*ptext); 138 init_key = 0; 139 } 140 141 lpfc_read_nv(phba, pmb); 142 memset((char*)mb->un.varRDnvp.rsvd3, 0, 143 sizeof (mb->un.varRDnvp.rsvd3)); 144 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 145 sizeof (licensed)); 146 147 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 148 149 if (rc != MBX_SUCCESS) { 150 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 151 "0324 Config Port initialization " 152 "error, mbxCmd x%x READ_NVPARM, " 153 "mbxStatus x%x\n", 154 mb->mbxCommand, mb->mbxStatus); 155 mempool_free(pmb, phba->mbox_mem_pool); 156 return -ERESTART; 157 } 158 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 159 sizeof(phba->wwnn)); 160 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 161 sizeof(phba->wwpn)); 162 } 163 164 phba->sli3_options = 0x0; 165 166 /* Setup and issue mailbox READ REV command */ 167 lpfc_read_rev(phba, pmb); 168 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 169 if (rc != MBX_SUCCESS) { 170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 171 "0439 Adapter failed to init, mbxCmd x%x " 172 "READ_REV, mbxStatus x%x\n", 173 mb->mbxCommand, mb->mbxStatus); 174 mempool_free( pmb, phba->mbox_mem_pool); 175 return -ERESTART; 176 } 177 178 179 /* 180 * The value of rr must be 1 since the driver set the cv field to 1. 181 * This setting requires the FW to set all revision fields. 182 */ 183 if (mb->un.varRdRev.rr == 0) { 184 vp->rev.rBit = 0; 185 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 186 "0440 Adapter failed to init, READ_REV has " 187 "missing revision information.\n"); 188 mempool_free(pmb, phba->mbox_mem_pool); 189 return -ERESTART; 190 } 191 192 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 193 mempool_free(pmb, phba->mbox_mem_pool); 194 return -EINVAL; 195 } 196 197 /* Save information as VPD data */ 198 vp->rev.rBit = 1; 199 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 200 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 201 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 202 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 203 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 204 vp->rev.biuRev = mb->un.varRdRev.biuRev; 205 vp->rev.smRev = mb->un.varRdRev.smRev; 206 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 207 vp->rev.endecRev = mb->un.varRdRev.endecRev; 208 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 209 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 210 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 211 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 212 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 213 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 214 215 /* If the sli feature level is less then 9, we must 216 * tear down all RPIs and VPIs on link down if NPIV 217 * is enabled. 218 */ 219 if (vp->rev.feaLevelHigh < 9) 220 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 221 222 if (lpfc_is_LC_HBA(phba->pcidev->device)) 223 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 224 sizeof (phba->RandomData)); 225 226 /* Get adapter VPD information */ 227 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 228 if (!lpfc_vpd_data) 229 goto out_free_mbox; 230 do { 231 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 232 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 233 234 if (rc != MBX_SUCCESS) { 235 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 236 "0441 VPD not present on adapter, " 237 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 238 mb->mbxCommand, mb->mbxStatus); 239 mb->un.varDmp.word_cnt = 0; 240 } 241 /* dump mem may return a zero when finished or we got a 242 * mailbox error, either way we are done. 243 */ 244 if (mb->un.varDmp.word_cnt == 0) 245 break; 246 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 247 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 248 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 249 lpfc_vpd_data + offset, 250 mb->un.varDmp.word_cnt); 251 offset += mb->un.varDmp.word_cnt; 252 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 253 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 254 255 kfree(lpfc_vpd_data); 256 out_free_mbox: 257 mempool_free(pmb, phba->mbox_mem_pool); 258 return 0; 259 } 260 261 /** 262 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 263 * @phba: pointer to lpfc hba data structure. 264 * @pmboxq: pointer to the driver internal queue element for mailbox command. 265 * 266 * This is the completion handler for driver's configuring asynchronous event 267 * mailbox command to the device. If the mailbox command returns successfully, 268 * it will set internal async event support flag to 1; otherwise, it will 269 * set internal async event support flag to 0. 270 **/ 271 static void 272 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 273 { 274 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 275 phba->temp_sensor_support = 1; 276 else 277 phba->temp_sensor_support = 0; 278 mempool_free(pmboxq, phba->mbox_mem_pool); 279 return; 280 } 281 282 /** 283 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 284 * @phba: pointer to lpfc hba data structure. 285 * @pmboxq: pointer to the driver internal queue element for mailbox command. 286 * 287 * This is the completion handler for dump mailbox command for getting 288 * wake up parameters. When this command complete, the response contain 289 * Option rom version of the HBA. This function translate the version number 290 * into a human readable string and store it in OptionROMVersion. 291 **/ 292 static void 293 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 294 { 295 struct prog_id *prg; 296 uint32_t prog_id_word; 297 char dist = ' '; 298 /* character array used for decoding dist type. */ 299 char dist_char[] = "nabx"; 300 301 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 302 mempool_free(pmboxq, phba->mbox_mem_pool); 303 return; 304 } 305 306 prg = (struct prog_id *) &prog_id_word; 307 308 /* word 7 contain option rom version */ 309 prog_id_word = pmboxq->u.mb.un.varWords[7]; 310 311 /* Decode the Option rom version word to a readable string */ 312 if (prg->dist < 4) 313 dist = dist_char[prg->dist]; 314 315 if ((prg->dist == 3) && (prg->num == 0)) 316 snprintf(phba->OptionROMVersion, 32, "%d.%d%d", 317 prg->ver, prg->rev, prg->lev); 318 else 319 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d", 320 prg->ver, prg->rev, prg->lev, 321 dist, prg->num); 322 mempool_free(pmboxq, phba->mbox_mem_pool); 323 return; 324 } 325 326 /** 327 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 328 * cfg_soft_wwnn, cfg_soft_wwpn 329 * @vport: pointer to lpfc vport data structure. 330 * 331 * 332 * Return codes 333 * None. 334 **/ 335 void 336 lpfc_update_vport_wwn(struct lpfc_vport *vport) 337 { 338 /* If the soft name exists then update it using the service params */ 339 if (vport->phba->cfg_soft_wwnn) 340 u64_to_wwn(vport->phba->cfg_soft_wwnn, 341 vport->fc_sparam.nodeName.u.wwn); 342 if (vport->phba->cfg_soft_wwpn) 343 u64_to_wwn(vport->phba->cfg_soft_wwpn, 344 vport->fc_sparam.portName.u.wwn); 345 346 /* 347 * If the name is empty or there exists a soft name 348 * then copy the service params name, otherwise use the fc name 349 */ 350 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 351 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 352 sizeof(struct lpfc_name)); 353 else 354 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 355 sizeof(struct lpfc_name)); 356 357 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn) 358 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 359 sizeof(struct lpfc_name)); 360 else 361 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 362 sizeof(struct lpfc_name)); 363 } 364 365 /** 366 * lpfc_config_port_post - Perform lpfc initialization after config port 367 * @phba: pointer to lpfc hba data structure. 368 * 369 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 370 * command call. It performs all internal resource and state setups on the 371 * port: post IOCB buffers, enable appropriate host interrupt attentions, 372 * ELS ring timers, etc. 373 * 374 * Return codes 375 * 0 - success. 376 * Any other value - error. 377 **/ 378 int 379 lpfc_config_port_post(struct lpfc_hba *phba) 380 { 381 struct lpfc_vport *vport = phba->pport; 382 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 383 LPFC_MBOXQ_t *pmb; 384 MAILBOX_t *mb; 385 struct lpfc_dmabuf *mp; 386 struct lpfc_sli *psli = &phba->sli; 387 uint32_t status, timeout; 388 int i, j; 389 int rc; 390 391 spin_lock_irq(&phba->hbalock); 392 /* 393 * If the Config port completed correctly the HBA is not 394 * over heated any more. 395 */ 396 if (phba->over_temp_state == HBA_OVER_TEMP) 397 phba->over_temp_state = HBA_NORMAL_TEMP; 398 spin_unlock_irq(&phba->hbalock); 399 400 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 401 if (!pmb) { 402 phba->link_state = LPFC_HBA_ERROR; 403 return -ENOMEM; 404 } 405 mb = &pmb->u.mb; 406 407 /* Get login parameters for NID. */ 408 rc = lpfc_read_sparam(phba, pmb, 0); 409 if (rc) { 410 mempool_free(pmb, phba->mbox_mem_pool); 411 return -ENOMEM; 412 } 413 414 pmb->vport = vport; 415 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 416 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 417 "0448 Adapter failed init, mbxCmd x%x " 418 "READ_SPARM mbxStatus x%x\n", 419 mb->mbxCommand, mb->mbxStatus); 420 phba->link_state = LPFC_HBA_ERROR; 421 mp = (struct lpfc_dmabuf *) pmb->context1; 422 mempool_free(pmb, phba->mbox_mem_pool); 423 lpfc_mbuf_free(phba, mp->virt, mp->phys); 424 kfree(mp); 425 return -EIO; 426 } 427 428 mp = (struct lpfc_dmabuf *) pmb->context1; 429 430 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 431 lpfc_mbuf_free(phba, mp->virt, mp->phys); 432 kfree(mp); 433 pmb->context1 = NULL; 434 lpfc_update_vport_wwn(vport); 435 436 /* Update the fc_host data structures with new wwn. */ 437 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 438 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 439 fc_host_max_npiv_vports(shost) = phba->max_vpi; 440 441 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 442 /* This should be consolidated into parse_vpd ? - mr */ 443 if (phba->SerialNumber[0] == 0) { 444 uint8_t *outptr; 445 446 outptr = &vport->fc_nodename.u.s.IEEE[0]; 447 for (i = 0; i < 12; i++) { 448 status = *outptr++; 449 j = ((status & 0xf0) >> 4); 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 i++; 457 j = (status & 0xf); 458 if (j <= 9) 459 phba->SerialNumber[i] = 460 (char)((uint8_t) 0x30 + (uint8_t) j); 461 else 462 phba->SerialNumber[i] = 463 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 464 } 465 } 466 467 lpfc_read_config(phba, pmb); 468 pmb->vport = vport; 469 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 470 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 471 "0453 Adapter failed to init, mbxCmd x%x " 472 "READ_CONFIG, mbxStatus x%x\n", 473 mb->mbxCommand, mb->mbxStatus); 474 phba->link_state = LPFC_HBA_ERROR; 475 mempool_free( pmb, phba->mbox_mem_pool); 476 return -EIO; 477 } 478 479 /* Check if the port is disabled */ 480 lpfc_sli_read_link_ste(phba); 481 482 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 483 i = (mb->un.varRdConfig.max_xri + 1); 484 if (phba->cfg_hba_queue_depth > i) { 485 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 486 "3359 HBA queue depth changed from %d to %d\n", 487 phba->cfg_hba_queue_depth, i); 488 phba->cfg_hba_queue_depth = i; 489 } 490 491 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */ 492 i = (mb->un.varRdConfig.max_xri >> 3); 493 if (phba->pport->cfg_lun_queue_depth > i) { 494 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 495 "3360 LUN queue depth changed from %d to %d\n", 496 phba->pport->cfg_lun_queue_depth, i); 497 phba->pport->cfg_lun_queue_depth = i; 498 } 499 500 phba->lmt = mb->un.varRdConfig.lmt; 501 502 /* Get the default values for Model Name and Description */ 503 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 504 505 phba->link_state = LPFC_LINK_DOWN; 506 507 /* Only process IOCBs on ELS ring till hba_state is READY */ 508 if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr) 509 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT; 510 if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr) 511 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT; 512 513 /* Post receive buffers for desired rings */ 514 if (phba->sli_rev != 3) 515 lpfc_post_rcv_buf(phba); 516 517 /* 518 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 519 */ 520 if (phba->intr_type == MSIX) { 521 rc = lpfc_config_msi(phba, pmb); 522 if (rc) { 523 mempool_free(pmb, phba->mbox_mem_pool); 524 return -EIO; 525 } 526 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 527 if (rc != MBX_SUCCESS) { 528 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 529 "0352 Config MSI mailbox command " 530 "failed, mbxCmd x%x, mbxStatus x%x\n", 531 pmb->u.mb.mbxCommand, 532 pmb->u.mb.mbxStatus); 533 mempool_free(pmb, phba->mbox_mem_pool); 534 return -EIO; 535 } 536 } 537 538 spin_lock_irq(&phba->hbalock); 539 /* Initialize ERATT handling flag */ 540 phba->hba_flag &= ~HBA_ERATT_HANDLED; 541 542 /* Enable appropriate host interrupts */ 543 if (lpfc_readl(phba->HCregaddr, &status)) { 544 spin_unlock_irq(&phba->hbalock); 545 return -EIO; 546 } 547 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 548 if (psli->num_rings > 0) 549 status |= HC_R0INT_ENA; 550 if (psli->num_rings > 1) 551 status |= HC_R1INT_ENA; 552 if (psli->num_rings > 2) 553 status |= HC_R2INT_ENA; 554 if (psli->num_rings > 3) 555 status |= HC_R3INT_ENA; 556 557 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 558 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 559 status &= ~(HC_R0INT_ENA); 560 561 writel(status, phba->HCregaddr); 562 readl(phba->HCregaddr); /* flush */ 563 spin_unlock_irq(&phba->hbalock); 564 565 /* Set up ring-0 (ELS) timer */ 566 timeout = phba->fc_ratov * 2; 567 mod_timer(&vport->els_tmofunc, 568 jiffies + msecs_to_jiffies(1000 * timeout)); 569 /* Set up heart beat (HB) timer */ 570 mod_timer(&phba->hb_tmofunc, 571 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 572 phba->hb_outstanding = 0; 573 phba->last_completion_time = jiffies; 574 /* Set up error attention (ERATT) polling timer */ 575 mod_timer(&phba->eratt_poll, 576 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval)); 577 578 if (phba->hba_flag & LINK_DISABLED) { 579 lpfc_printf_log(phba, 580 KERN_ERR, LOG_INIT, 581 "2598 Adapter Link is disabled.\n"); 582 lpfc_down_link(phba, pmb); 583 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 584 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 585 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 586 lpfc_printf_log(phba, 587 KERN_ERR, LOG_INIT, 588 "2599 Adapter failed to issue DOWN_LINK" 589 " mbox command rc 0x%x\n", rc); 590 591 mempool_free(pmb, phba->mbox_mem_pool); 592 return -EIO; 593 } 594 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 595 mempool_free(pmb, phba->mbox_mem_pool); 596 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 597 if (rc) 598 return rc; 599 } 600 /* MBOX buffer will be freed in mbox compl */ 601 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 602 if (!pmb) { 603 phba->link_state = LPFC_HBA_ERROR; 604 return -ENOMEM; 605 } 606 607 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 608 pmb->mbox_cmpl = lpfc_config_async_cmpl; 609 pmb->vport = phba->pport; 610 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 611 612 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 613 lpfc_printf_log(phba, 614 KERN_ERR, 615 LOG_INIT, 616 "0456 Adapter failed to issue " 617 "ASYNCEVT_ENABLE mbox status x%x\n", 618 rc); 619 mempool_free(pmb, phba->mbox_mem_pool); 620 } 621 622 /* Get Option rom version */ 623 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 624 if (!pmb) { 625 phba->link_state = LPFC_HBA_ERROR; 626 return -ENOMEM; 627 } 628 629 lpfc_dump_wakeup_param(phba, pmb); 630 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 631 pmb->vport = phba->pport; 632 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 633 634 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 635 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 636 "to get Option ROM version status x%x\n", rc); 637 mempool_free(pmb, phba->mbox_mem_pool); 638 } 639 640 return 0; 641 } 642 643 /** 644 * lpfc_hba_init_link - Initialize the FC link 645 * @phba: pointer to lpfc hba data structure. 646 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 647 * 648 * This routine will issue the INIT_LINK mailbox command call. 649 * It is available to other drivers through the lpfc_hba data 650 * structure for use as a delayed link up mechanism with the 651 * module parameter lpfc_suppress_link_up. 652 * 653 * Return code 654 * 0 - success 655 * Any other value - error 656 **/ 657 static int 658 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 659 { 660 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); 661 } 662 663 /** 664 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology 665 * @phba: pointer to lpfc hba data structure. 666 * @fc_topology: desired fc topology. 667 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 668 * 669 * This routine will issue the INIT_LINK mailbox command call. 670 * It is available to other drivers through the lpfc_hba data 671 * structure for use as a delayed link up mechanism with the 672 * module parameter lpfc_suppress_link_up. 673 * 674 * Return code 675 * 0 - success 676 * Any other value - error 677 **/ 678 int 679 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, 680 uint32_t flag) 681 { 682 struct lpfc_vport *vport = phba->pport; 683 LPFC_MBOXQ_t *pmb; 684 MAILBOX_t *mb; 685 int rc; 686 687 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 688 if (!pmb) { 689 phba->link_state = LPFC_HBA_ERROR; 690 return -ENOMEM; 691 } 692 mb = &pmb->u.mb; 693 pmb->vport = vport; 694 695 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || 696 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && 697 !(phba->lmt & LMT_1Gb)) || 698 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && 699 !(phba->lmt & LMT_2Gb)) || 700 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && 701 !(phba->lmt & LMT_4Gb)) || 702 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && 703 !(phba->lmt & LMT_8Gb)) || 704 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && 705 !(phba->lmt & LMT_10Gb)) || 706 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && 707 !(phba->lmt & LMT_16Gb)) || 708 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) && 709 !(phba->lmt & LMT_32Gb))) { 710 /* Reset link speed to auto */ 711 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 712 "1302 Invalid speed for this board:%d " 713 "Reset link speed to auto.\n", 714 phba->cfg_link_speed); 715 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 716 } 717 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); 718 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 719 if (phba->sli_rev < LPFC_SLI_REV4) 720 lpfc_set_loopback_flag(phba); 721 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 722 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 724 "0498 Adapter failed to init, mbxCmd x%x " 725 "INIT_LINK, mbxStatus x%x\n", 726 mb->mbxCommand, mb->mbxStatus); 727 if (phba->sli_rev <= LPFC_SLI_REV3) { 728 /* Clear all interrupt enable conditions */ 729 writel(0, phba->HCregaddr); 730 readl(phba->HCregaddr); /* flush */ 731 /* Clear all pending interrupts */ 732 writel(0xffffffff, phba->HAregaddr); 733 readl(phba->HAregaddr); /* flush */ 734 } 735 phba->link_state = LPFC_HBA_ERROR; 736 if (rc != MBX_BUSY || flag == MBX_POLL) 737 mempool_free(pmb, phba->mbox_mem_pool); 738 return -EIO; 739 } 740 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 741 if (flag == MBX_POLL) 742 mempool_free(pmb, phba->mbox_mem_pool); 743 744 return 0; 745 } 746 747 /** 748 * lpfc_hba_down_link - this routine downs the FC link 749 * @phba: pointer to lpfc hba data structure. 750 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 751 * 752 * This routine will issue the DOWN_LINK mailbox command call. 753 * It is available to other drivers through the lpfc_hba data 754 * structure for use to stop the link. 755 * 756 * Return code 757 * 0 - success 758 * Any other value - error 759 **/ 760 static int 761 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 762 { 763 LPFC_MBOXQ_t *pmb; 764 int rc; 765 766 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 767 if (!pmb) { 768 phba->link_state = LPFC_HBA_ERROR; 769 return -ENOMEM; 770 } 771 772 lpfc_printf_log(phba, 773 KERN_ERR, LOG_INIT, 774 "0491 Adapter Link is disabled.\n"); 775 lpfc_down_link(phba, pmb); 776 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 777 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 778 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 779 lpfc_printf_log(phba, 780 KERN_ERR, LOG_INIT, 781 "2522 Adapter failed to issue DOWN_LINK" 782 " mbox command rc 0x%x\n", rc); 783 784 mempool_free(pmb, phba->mbox_mem_pool); 785 return -EIO; 786 } 787 if (flag == MBX_POLL) 788 mempool_free(pmb, phba->mbox_mem_pool); 789 790 return 0; 791 } 792 793 /** 794 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 795 * @phba: pointer to lpfc HBA data structure. 796 * 797 * This routine will do LPFC uninitialization before the HBA is reset when 798 * bringing down the SLI Layer. 799 * 800 * Return codes 801 * 0 - success. 802 * Any other value - error. 803 **/ 804 int 805 lpfc_hba_down_prep(struct lpfc_hba *phba) 806 { 807 struct lpfc_vport **vports; 808 int i; 809 810 if (phba->sli_rev <= LPFC_SLI_REV3) { 811 /* Disable interrupts */ 812 writel(0, phba->HCregaddr); 813 readl(phba->HCregaddr); /* flush */ 814 } 815 816 if (phba->pport->load_flag & FC_UNLOADING) 817 lpfc_cleanup_discovery_resources(phba->pport); 818 else { 819 vports = lpfc_create_vport_work_array(phba); 820 if (vports != NULL) 821 for (i = 0; i <= phba->max_vports && 822 vports[i] != NULL; i++) 823 lpfc_cleanup_discovery_resources(vports[i]); 824 lpfc_destroy_vport_work_array(phba, vports); 825 } 826 return 0; 827 } 828 829 /** 830 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free 831 * rspiocb which got deferred 832 * 833 * @phba: pointer to lpfc HBA data structure. 834 * 835 * This routine will cleanup completed slow path events after HBA is reset 836 * when bringing down the SLI Layer. 837 * 838 * 839 * Return codes 840 * void. 841 **/ 842 static void 843 lpfc_sli4_free_sp_events(struct lpfc_hba *phba) 844 { 845 struct lpfc_iocbq *rspiocbq; 846 struct hbq_dmabuf *dmabuf; 847 struct lpfc_cq_event *cq_event; 848 849 spin_lock_irq(&phba->hbalock); 850 phba->hba_flag &= ~HBA_SP_QUEUE_EVT; 851 spin_unlock_irq(&phba->hbalock); 852 853 while (!list_empty(&phba->sli4_hba.sp_queue_event)) { 854 /* Get the response iocb from the head of work queue */ 855 spin_lock_irq(&phba->hbalock); 856 list_remove_head(&phba->sli4_hba.sp_queue_event, 857 cq_event, struct lpfc_cq_event, list); 858 spin_unlock_irq(&phba->hbalock); 859 860 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) { 861 case CQE_CODE_COMPL_WQE: 862 rspiocbq = container_of(cq_event, struct lpfc_iocbq, 863 cq_event); 864 lpfc_sli_release_iocbq(phba, rspiocbq); 865 break; 866 case CQE_CODE_RECEIVE: 867 case CQE_CODE_RECEIVE_V1: 868 dmabuf = container_of(cq_event, struct hbq_dmabuf, 869 cq_event); 870 lpfc_in_buf_free(phba, &dmabuf->dbuf); 871 } 872 } 873 } 874 875 /** 876 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset 877 * @phba: pointer to lpfc HBA data structure. 878 * 879 * This routine will cleanup posted ELS buffers after the HBA is reset 880 * when bringing down the SLI Layer. 881 * 882 * 883 * Return codes 884 * void. 885 **/ 886 static void 887 lpfc_hba_free_post_buf(struct lpfc_hba *phba) 888 { 889 struct lpfc_sli *psli = &phba->sli; 890 struct lpfc_sli_ring *pring; 891 struct lpfc_dmabuf *mp, *next_mp; 892 LIST_HEAD(buflist); 893 int count; 894 895 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 896 lpfc_sli_hbqbuf_free_all(phba); 897 else { 898 /* Cleanup preposted buffers on the ELS ring */ 899 pring = &psli->sli3_ring[LPFC_ELS_RING]; 900 spin_lock_irq(&phba->hbalock); 901 list_splice_init(&pring->postbufq, &buflist); 902 spin_unlock_irq(&phba->hbalock); 903 904 count = 0; 905 list_for_each_entry_safe(mp, next_mp, &buflist, list) { 906 list_del(&mp->list); 907 count++; 908 lpfc_mbuf_free(phba, mp->virt, mp->phys); 909 kfree(mp); 910 } 911 912 spin_lock_irq(&phba->hbalock); 913 pring->postbufq_cnt -= count; 914 spin_unlock_irq(&phba->hbalock); 915 } 916 } 917 918 /** 919 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset 920 * @phba: pointer to lpfc HBA data structure. 921 * 922 * This routine will cleanup the txcmplq after the HBA is reset when bringing 923 * down the SLI Layer. 924 * 925 * Return codes 926 * void 927 **/ 928 static void 929 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba) 930 { 931 struct lpfc_sli *psli = &phba->sli; 932 struct lpfc_queue *qp = NULL; 933 struct lpfc_sli_ring *pring; 934 LIST_HEAD(completions); 935 int i; 936 937 if (phba->sli_rev != LPFC_SLI_REV4) { 938 for (i = 0; i < psli->num_rings; i++) { 939 pring = &psli->sli3_ring[i]; 940 spin_lock_irq(&phba->hbalock); 941 /* At this point in time the HBA is either reset or DOA 942 * Nothing should be on txcmplq as it will 943 * NEVER complete. 944 */ 945 list_splice_init(&pring->txcmplq, &completions); 946 pring->txcmplq_cnt = 0; 947 spin_unlock_irq(&phba->hbalock); 948 949 lpfc_sli_abort_iocb_ring(phba, pring); 950 } 951 /* Cancel all the IOCBs from the completions list */ 952 lpfc_sli_cancel_iocbs(phba, &completions, 953 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 954 return; 955 } 956 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 957 pring = qp->pring; 958 if (!pring) 959 continue; 960 spin_lock_irq(&pring->ring_lock); 961 list_splice_init(&pring->txcmplq, &completions); 962 pring->txcmplq_cnt = 0; 963 spin_unlock_irq(&pring->ring_lock); 964 lpfc_sli_abort_iocb_ring(phba, pring); 965 } 966 /* Cancel all the IOCBs from the completions list */ 967 lpfc_sli_cancel_iocbs(phba, &completions, 968 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 969 } 970 971 /** 972 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 973 int i; 974 * @phba: pointer to lpfc HBA data structure. 975 * 976 * This routine will do uninitialization after the HBA is reset when bring 977 * down the SLI Layer. 978 * 979 * Return codes 980 * 0 - success. 981 * Any other value - error. 982 **/ 983 static int 984 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 985 { 986 lpfc_hba_free_post_buf(phba); 987 lpfc_hba_clean_txcmplq(phba); 988 return 0; 989 } 990 991 /** 992 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 993 * @phba: pointer to lpfc HBA data structure. 994 * 995 * This routine will do uninitialization after the HBA is reset when bring 996 * down the SLI Layer. 997 * 998 * Return codes 999 * 0 - success. 1000 * Any other value - error. 1001 **/ 1002 static int 1003 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 1004 { 1005 struct lpfc_scsi_buf *psb, *psb_next; 1006 LIST_HEAD(aborts); 1007 LIST_HEAD(nvme_aborts); 1008 unsigned long iflag = 0; 1009 struct lpfc_sglq *sglq_entry = NULL; 1010 1011 1012 lpfc_sli_hbqbuf_free_all(phba); 1013 lpfc_hba_clean_txcmplq(phba); 1014 1015 /* At this point in time the HBA is either reset or DOA. Either 1016 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 1017 * on the lpfc_els_sgl_list so that it can either be freed if the 1018 * driver is unloading or reposted if the driver is restarting 1019 * the port. 1020 */ 1021 spin_lock_irq(&phba->hbalock); /* required for lpfc_els_sgl_list and */ 1022 /* scsl_buf_list */ 1023 /* sgl_list_lock required because worker thread uses this 1024 * list. 1025 */ 1026 spin_lock(&phba->sli4_hba.sgl_list_lock); 1027 list_for_each_entry(sglq_entry, 1028 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 1029 sglq_entry->state = SGL_FREED; 1030 list_for_each_entry(sglq_entry, 1031 &phba->sli4_hba.lpfc_abts_nvmet_sgl_list, list) 1032 sglq_entry->state = SGL_FREED; 1033 1034 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 1035 &phba->sli4_hba.lpfc_els_sgl_list); 1036 1037 if (phba->sli4_hba.nvme_wq) 1038 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_sgl_list, 1039 &phba->sli4_hba.lpfc_nvmet_sgl_list); 1040 1041 spin_unlock(&phba->sli4_hba.sgl_list_lock); 1042 /* abts_scsi_buf_list_lock required because worker thread uses this 1043 * list. 1044 */ 1045 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 1046 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 1047 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 1048 &aborts); 1049 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 1050 } 1051 1052 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 1053 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 1054 list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list, 1055 &nvme_aborts); 1056 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 1057 } 1058 1059 spin_unlock_irq(&phba->hbalock); 1060 1061 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 1062 psb->pCmd = NULL; 1063 psb->status = IOSTAT_SUCCESS; 1064 } 1065 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); 1066 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put); 1067 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); 1068 1069 list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) { 1070 psb->pCmd = NULL; 1071 psb->status = IOSTAT_SUCCESS; 1072 } 1073 spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag); 1074 list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put); 1075 spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag); 1076 1077 lpfc_sli4_free_sp_events(phba); 1078 return 0; 1079 } 1080 1081 /** 1082 * lpfc_hba_down_post - Wrapper func for hba down post routine 1083 * @phba: pointer to lpfc HBA data structure. 1084 * 1085 * This routine wraps the actual SLI3 or SLI4 routine for performing 1086 * uninitialization after the HBA is reset when bring down the SLI Layer. 1087 * 1088 * Return codes 1089 * 0 - success. 1090 * Any other value - error. 1091 **/ 1092 int 1093 lpfc_hba_down_post(struct lpfc_hba *phba) 1094 { 1095 return (*phba->lpfc_hba_down_post)(phba); 1096 } 1097 1098 /** 1099 * lpfc_hb_timeout - The HBA-timer timeout handler 1100 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1101 * 1102 * This is the HBA-timer timeout handler registered to the lpfc driver. When 1103 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 1104 * work-port-events bitmap and the worker thread is notified. This timeout 1105 * event will be used by the worker thread to invoke the actual timeout 1106 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 1107 * be performed in the timeout handler and the HBA timeout event bit shall 1108 * be cleared by the worker thread after it has taken the event bitmap out. 1109 **/ 1110 static void 1111 lpfc_hb_timeout(unsigned long ptr) 1112 { 1113 struct lpfc_hba *phba; 1114 uint32_t tmo_posted; 1115 unsigned long iflag; 1116 1117 phba = (struct lpfc_hba *)ptr; 1118 1119 /* Check for heart beat timeout conditions */ 1120 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1121 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 1122 if (!tmo_posted) 1123 phba->pport->work_port_events |= WORKER_HB_TMO; 1124 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1125 1126 /* Tell the worker thread there is work to do */ 1127 if (!tmo_posted) 1128 lpfc_worker_wake_up(phba); 1129 return; 1130 } 1131 1132 /** 1133 * lpfc_rrq_timeout - The RRQ-timer timeout handler 1134 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1135 * 1136 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 1137 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 1138 * work-port-events bitmap and the worker thread is notified. This timeout 1139 * event will be used by the worker thread to invoke the actual timeout 1140 * handler routine, lpfc_rrq_handler. Any periodical operations will 1141 * be performed in the timeout handler and the RRQ timeout event bit shall 1142 * be cleared by the worker thread after it has taken the event bitmap out. 1143 **/ 1144 static void 1145 lpfc_rrq_timeout(unsigned long ptr) 1146 { 1147 struct lpfc_hba *phba; 1148 unsigned long iflag; 1149 1150 phba = (struct lpfc_hba *)ptr; 1151 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1152 if (!(phba->pport->load_flag & FC_UNLOADING)) 1153 phba->hba_flag |= HBA_RRQ_ACTIVE; 1154 else 1155 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 1156 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1157 1158 if (!(phba->pport->load_flag & FC_UNLOADING)) 1159 lpfc_worker_wake_up(phba); 1160 } 1161 1162 /** 1163 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 1164 * @phba: pointer to lpfc hba data structure. 1165 * @pmboxq: pointer to the driver internal queue element for mailbox command. 1166 * 1167 * This is the callback function to the lpfc heart-beat mailbox command. 1168 * If configured, the lpfc driver issues the heart-beat mailbox command to 1169 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 1170 * heart-beat mailbox command is issued, the driver shall set up heart-beat 1171 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 1172 * heart-beat outstanding state. Once the mailbox command comes back and 1173 * no error conditions detected, the heart-beat mailbox command timer is 1174 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1175 * state is cleared for the next heart-beat. If the timer expired with the 1176 * heart-beat outstanding state set, the driver will put the HBA offline. 1177 **/ 1178 static void 1179 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1180 { 1181 unsigned long drvr_flag; 1182 1183 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1184 phba->hb_outstanding = 0; 1185 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1186 1187 /* Check and reset heart-beat timer is necessary */ 1188 mempool_free(pmboxq, phba->mbox_mem_pool); 1189 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1190 !(phba->link_state == LPFC_HBA_ERROR) && 1191 !(phba->pport->load_flag & FC_UNLOADING)) 1192 mod_timer(&phba->hb_tmofunc, 1193 jiffies + 1194 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1195 return; 1196 } 1197 1198 /** 1199 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1200 * @phba: pointer to lpfc hba data structure. 1201 * 1202 * This is the actual HBA-timer timeout handler to be invoked by the worker 1203 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1204 * handler performs any periodic operations needed for the device. If such 1205 * periodic event has already been attended to either in the interrupt handler 1206 * or by processing slow-ring or fast-ring events within the HBA-timer 1207 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1208 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1209 * is configured and there is no heart-beat mailbox command outstanding, a 1210 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1211 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1212 * to offline. 1213 **/ 1214 void 1215 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1216 { 1217 struct lpfc_vport **vports; 1218 LPFC_MBOXQ_t *pmboxq; 1219 struct lpfc_dmabuf *buf_ptr; 1220 int retval, i; 1221 struct lpfc_sli *psli = &phba->sli; 1222 LIST_HEAD(completions); 1223 1224 vports = lpfc_create_vport_work_array(phba); 1225 if (vports != NULL) 1226 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 1227 lpfc_rcv_seq_check_edtov(vports[i]); 1228 lpfc_fdmi_num_disc_check(vports[i]); 1229 } 1230 lpfc_destroy_vport_work_array(phba, vports); 1231 1232 if ((phba->link_state == LPFC_HBA_ERROR) || 1233 (phba->pport->load_flag & FC_UNLOADING) || 1234 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1235 return; 1236 1237 spin_lock_irq(&phba->pport->work_port_lock); 1238 1239 if (time_after(phba->last_completion_time + 1240 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL), 1241 jiffies)) { 1242 spin_unlock_irq(&phba->pport->work_port_lock); 1243 if (!phba->hb_outstanding) 1244 mod_timer(&phba->hb_tmofunc, 1245 jiffies + 1246 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1247 else 1248 mod_timer(&phba->hb_tmofunc, 1249 jiffies + 1250 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1251 return; 1252 } 1253 spin_unlock_irq(&phba->pport->work_port_lock); 1254 1255 if (phba->elsbuf_cnt && 1256 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1257 spin_lock_irq(&phba->hbalock); 1258 list_splice_init(&phba->elsbuf, &completions); 1259 phba->elsbuf_cnt = 0; 1260 phba->elsbuf_prev_cnt = 0; 1261 spin_unlock_irq(&phba->hbalock); 1262 1263 while (!list_empty(&completions)) { 1264 list_remove_head(&completions, buf_ptr, 1265 struct lpfc_dmabuf, list); 1266 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1267 kfree(buf_ptr); 1268 } 1269 } 1270 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1271 1272 /* If there is no heart beat outstanding, issue a heartbeat command */ 1273 if (phba->cfg_enable_hba_heartbeat) { 1274 if (!phba->hb_outstanding) { 1275 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1276 (list_empty(&psli->mboxq))) { 1277 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1278 GFP_KERNEL); 1279 if (!pmboxq) { 1280 mod_timer(&phba->hb_tmofunc, 1281 jiffies + 1282 msecs_to_jiffies(1000 * 1283 LPFC_HB_MBOX_INTERVAL)); 1284 return; 1285 } 1286 1287 lpfc_heart_beat(phba, pmboxq); 1288 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1289 pmboxq->vport = phba->pport; 1290 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1291 MBX_NOWAIT); 1292 1293 if (retval != MBX_BUSY && 1294 retval != MBX_SUCCESS) { 1295 mempool_free(pmboxq, 1296 phba->mbox_mem_pool); 1297 mod_timer(&phba->hb_tmofunc, 1298 jiffies + 1299 msecs_to_jiffies(1000 * 1300 LPFC_HB_MBOX_INTERVAL)); 1301 return; 1302 } 1303 phba->skipped_hb = 0; 1304 phba->hb_outstanding = 1; 1305 } else if (time_before_eq(phba->last_completion_time, 1306 phba->skipped_hb)) { 1307 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1308 "2857 Last completion time not " 1309 " updated in %d ms\n", 1310 jiffies_to_msecs(jiffies 1311 - phba->last_completion_time)); 1312 } else 1313 phba->skipped_hb = jiffies; 1314 1315 mod_timer(&phba->hb_tmofunc, 1316 jiffies + 1317 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1318 return; 1319 } else { 1320 /* 1321 * If heart beat timeout called with hb_outstanding set 1322 * we need to give the hb mailbox cmd a chance to 1323 * complete or TMO. 1324 */ 1325 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1326 "0459 Adapter heartbeat still out" 1327 "standing:last compl time was %d ms.\n", 1328 jiffies_to_msecs(jiffies 1329 - phba->last_completion_time)); 1330 mod_timer(&phba->hb_tmofunc, 1331 jiffies + 1332 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1333 } 1334 } else { 1335 mod_timer(&phba->hb_tmofunc, 1336 jiffies + 1337 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1338 } 1339 } 1340 1341 /** 1342 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1343 * @phba: pointer to lpfc hba data structure. 1344 * 1345 * This routine is called to bring the HBA offline when HBA hardware error 1346 * other than Port Error 6 has been detected. 1347 **/ 1348 static void 1349 lpfc_offline_eratt(struct lpfc_hba *phba) 1350 { 1351 struct lpfc_sli *psli = &phba->sli; 1352 1353 spin_lock_irq(&phba->hbalock); 1354 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1355 spin_unlock_irq(&phba->hbalock); 1356 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1357 1358 lpfc_offline(phba); 1359 lpfc_reset_barrier(phba); 1360 spin_lock_irq(&phba->hbalock); 1361 lpfc_sli_brdreset(phba); 1362 spin_unlock_irq(&phba->hbalock); 1363 lpfc_hba_down_post(phba); 1364 lpfc_sli_brdready(phba, HS_MBRDY); 1365 lpfc_unblock_mgmt_io(phba); 1366 phba->link_state = LPFC_HBA_ERROR; 1367 return; 1368 } 1369 1370 /** 1371 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1372 * @phba: pointer to lpfc hba data structure. 1373 * 1374 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1375 * other than Port Error 6 has been detected. 1376 **/ 1377 void 1378 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1379 { 1380 spin_lock_irq(&phba->hbalock); 1381 phba->link_state = LPFC_HBA_ERROR; 1382 spin_unlock_irq(&phba->hbalock); 1383 1384 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1385 lpfc_offline(phba); 1386 lpfc_hba_down_post(phba); 1387 lpfc_unblock_mgmt_io(phba); 1388 } 1389 1390 /** 1391 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1392 * @phba: pointer to lpfc hba data structure. 1393 * 1394 * This routine is invoked to handle the deferred HBA hardware error 1395 * conditions. This type of error is indicated by HBA by setting ER1 1396 * and another ER bit in the host status register. The driver will 1397 * wait until the ER1 bit clears before handling the error condition. 1398 **/ 1399 static void 1400 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1401 { 1402 uint32_t old_host_status = phba->work_hs; 1403 struct lpfc_sli *psli = &phba->sli; 1404 1405 /* If the pci channel is offline, ignore possible errors, 1406 * since we cannot communicate with the pci card anyway. 1407 */ 1408 if (pci_channel_offline(phba->pcidev)) { 1409 spin_lock_irq(&phba->hbalock); 1410 phba->hba_flag &= ~DEFER_ERATT; 1411 spin_unlock_irq(&phba->hbalock); 1412 return; 1413 } 1414 1415 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1416 "0479 Deferred Adapter Hardware Error " 1417 "Data: x%x x%x x%x\n", 1418 phba->work_hs, 1419 phba->work_status[0], phba->work_status[1]); 1420 1421 spin_lock_irq(&phba->hbalock); 1422 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1423 spin_unlock_irq(&phba->hbalock); 1424 1425 1426 /* 1427 * Firmware stops when it triggred erratt. That could cause the I/Os 1428 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1429 * SCSI layer retry it after re-establishing link. 1430 */ 1431 lpfc_sli_abort_fcp_rings(phba); 1432 1433 /* 1434 * There was a firmware error. Take the hba offline and then 1435 * attempt to restart it. 1436 */ 1437 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 1438 lpfc_offline(phba); 1439 1440 /* Wait for the ER1 bit to clear.*/ 1441 while (phba->work_hs & HS_FFER1) { 1442 msleep(100); 1443 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1444 phba->work_hs = UNPLUG_ERR ; 1445 break; 1446 } 1447 /* If driver is unloading let the worker thread continue */ 1448 if (phba->pport->load_flag & FC_UNLOADING) { 1449 phba->work_hs = 0; 1450 break; 1451 } 1452 } 1453 1454 /* 1455 * This is to ptrotect against a race condition in which 1456 * first write to the host attention register clear the 1457 * host status register. 1458 */ 1459 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1460 phba->work_hs = old_host_status & ~HS_FFER1; 1461 1462 spin_lock_irq(&phba->hbalock); 1463 phba->hba_flag &= ~DEFER_ERATT; 1464 spin_unlock_irq(&phba->hbalock); 1465 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1466 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1467 } 1468 1469 static void 1470 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1471 { 1472 struct lpfc_board_event_header board_event; 1473 struct Scsi_Host *shost; 1474 1475 board_event.event_type = FC_REG_BOARD_EVENT; 1476 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1477 shost = lpfc_shost_from_vport(phba->pport); 1478 fc_host_post_vendor_event(shost, fc_get_event_number(), 1479 sizeof(board_event), 1480 (char *) &board_event, 1481 LPFC_NL_VENDOR_ID); 1482 } 1483 1484 /** 1485 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1486 * @phba: pointer to lpfc hba data structure. 1487 * 1488 * This routine is invoked to handle the following HBA hardware error 1489 * conditions: 1490 * 1 - HBA error attention interrupt 1491 * 2 - DMA ring index out of range 1492 * 3 - Mailbox command came back as unknown 1493 **/ 1494 static void 1495 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1496 { 1497 struct lpfc_vport *vport = phba->pport; 1498 struct lpfc_sli *psli = &phba->sli; 1499 uint32_t event_data; 1500 unsigned long temperature; 1501 struct temp_event temp_event_data; 1502 struct Scsi_Host *shost; 1503 1504 /* If the pci channel is offline, ignore possible errors, 1505 * since we cannot communicate with the pci card anyway. 1506 */ 1507 if (pci_channel_offline(phba->pcidev)) { 1508 spin_lock_irq(&phba->hbalock); 1509 phba->hba_flag &= ~DEFER_ERATT; 1510 spin_unlock_irq(&phba->hbalock); 1511 return; 1512 } 1513 1514 /* If resets are disabled then leave the HBA alone and return */ 1515 if (!phba->cfg_enable_hba_reset) 1516 return; 1517 1518 /* Send an internal error event to mgmt application */ 1519 lpfc_board_errevt_to_mgmt(phba); 1520 1521 if (phba->hba_flag & DEFER_ERATT) 1522 lpfc_handle_deferred_eratt(phba); 1523 1524 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1525 if (phba->work_hs & HS_FFER6) 1526 /* Re-establishing Link */ 1527 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1528 "1301 Re-establishing Link " 1529 "Data: x%x x%x x%x\n", 1530 phba->work_hs, phba->work_status[0], 1531 phba->work_status[1]); 1532 if (phba->work_hs & HS_FFER8) 1533 /* Device Zeroization */ 1534 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1535 "2861 Host Authentication device " 1536 "zeroization Data:x%x x%x x%x\n", 1537 phba->work_hs, phba->work_status[0], 1538 phba->work_status[1]); 1539 1540 spin_lock_irq(&phba->hbalock); 1541 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1542 spin_unlock_irq(&phba->hbalock); 1543 1544 /* 1545 * Firmware stops when it triggled erratt with HS_FFER6. 1546 * That could cause the I/Os dropped by the firmware. 1547 * Error iocb (I/O) on txcmplq and let the SCSI layer 1548 * retry it after re-establishing link. 1549 */ 1550 lpfc_sli_abort_fcp_rings(phba); 1551 1552 /* 1553 * There was a firmware error. Take the hba offline and then 1554 * attempt to restart it. 1555 */ 1556 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1557 lpfc_offline(phba); 1558 lpfc_sli_brdrestart(phba); 1559 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1560 lpfc_unblock_mgmt_io(phba); 1561 return; 1562 } 1563 lpfc_unblock_mgmt_io(phba); 1564 } else if (phba->work_hs & HS_CRIT_TEMP) { 1565 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1566 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1567 temp_event_data.event_code = LPFC_CRIT_TEMP; 1568 temp_event_data.data = (uint32_t)temperature; 1569 1570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1571 "0406 Adapter maximum temperature exceeded " 1572 "(%ld), taking this port offline " 1573 "Data: x%x x%x x%x\n", 1574 temperature, phba->work_hs, 1575 phba->work_status[0], phba->work_status[1]); 1576 1577 shost = lpfc_shost_from_vport(phba->pport); 1578 fc_host_post_vendor_event(shost, fc_get_event_number(), 1579 sizeof(temp_event_data), 1580 (char *) &temp_event_data, 1581 SCSI_NL_VID_TYPE_PCI 1582 | PCI_VENDOR_ID_EMULEX); 1583 1584 spin_lock_irq(&phba->hbalock); 1585 phba->over_temp_state = HBA_OVER_TEMP; 1586 spin_unlock_irq(&phba->hbalock); 1587 lpfc_offline_eratt(phba); 1588 1589 } else { 1590 /* The if clause above forces this code path when the status 1591 * failure is a value other than FFER6. Do not call the offline 1592 * twice. This is the adapter hardware error path. 1593 */ 1594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1595 "0457 Adapter Hardware Error " 1596 "Data: x%x x%x x%x\n", 1597 phba->work_hs, 1598 phba->work_status[0], phba->work_status[1]); 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 lpfc_offline_eratt(phba); 1607 } 1608 return; 1609 } 1610 1611 /** 1612 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg 1613 * @phba: pointer to lpfc hba data structure. 1614 * @mbx_action: flag for mailbox shutdown action. 1615 * 1616 * This routine is invoked to perform an SLI4 port PCI function reset in 1617 * response to port status register polling attention. It waits for port 1618 * status register (ERR, RDY, RN) bits before proceeding with function reset. 1619 * During this process, interrupt vectors are freed and later requested 1620 * for handling possible port resource change. 1621 **/ 1622 static int 1623 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action, 1624 bool en_rn_msg) 1625 { 1626 int rc; 1627 uint32_t intr_mode; 1628 1629 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 1630 LPFC_SLI_INTF_IF_TYPE_2) { 1631 /* 1632 * On error status condition, driver need to wait for port 1633 * ready before performing reset. 1634 */ 1635 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1636 if (rc) 1637 return rc; 1638 } 1639 1640 /* need reset: attempt for port recovery */ 1641 if (en_rn_msg) 1642 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1643 "2887 Reset Needed: Attempting Port " 1644 "Recovery...\n"); 1645 lpfc_offline_prep(phba, mbx_action); 1646 lpfc_offline(phba); 1647 /* release interrupt for possible resource change */ 1648 lpfc_sli4_disable_intr(phba); 1649 lpfc_sli_brdrestart(phba); 1650 /* request and enable interrupt */ 1651 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 1652 if (intr_mode == LPFC_INTR_ERROR) { 1653 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1654 "3175 Failed to enable interrupt\n"); 1655 return -EIO; 1656 } 1657 phba->intr_mode = intr_mode; 1658 rc = lpfc_online(phba); 1659 if (rc == 0) 1660 lpfc_unblock_mgmt_io(phba); 1661 1662 return rc; 1663 } 1664 1665 /** 1666 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1667 * @phba: pointer to lpfc hba data structure. 1668 * 1669 * This routine is invoked to handle the SLI4 HBA hardware error attention 1670 * conditions. 1671 **/ 1672 static void 1673 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1674 { 1675 struct lpfc_vport *vport = phba->pport; 1676 uint32_t event_data; 1677 struct Scsi_Host *shost; 1678 uint32_t if_type; 1679 struct lpfc_register portstat_reg = {0}; 1680 uint32_t reg_err1, reg_err2; 1681 uint32_t uerrlo_reg, uemasklo_reg; 1682 uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2; 1683 bool en_rn_msg = true; 1684 struct temp_event temp_event_data; 1685 struct lpfc_register portsmphr_reg; 1686 int rc, i; 1687 1688 /* If the pci channel is offline, ignore possible errors, since 1689 * we cannot communicate with the pci card anyway. 1690 */ 1691 if (pci_channel_offline(phba->pcidev)) 1692 return; 1693 1694 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 1695 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1696 switch (if_type) { 1697 case LPFC_SLI_INTF_IF_TYPE_0: 1698 pci_rd_rc1 = lpfc_readl( 1699 phba->sli4_hba.u.if_type0.UERRLOregaddr, 1700 &uerrlo_reg); 1701 pci_rd_rc2 = lpfc_readl( 1702 phba->sli4_hba.u.if_type0.UEMASKLOregaddr, 1703 &uemasklo_reg); 1704 /* consider PCI bus read error as pci_channel_offline */ 1705 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) 1706 return; 1707 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) { 1708 lpfc_sli4_offline_eratt(phba); 1709 return; 1710 } 1711 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1712 "7623 Checking UE recoverable"); 1713 1714 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) { 1715 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 1716 &portsmphr_reg.word0)) 1717 continue; 1718 1719 smphr_port_status = bf_get(lpfc_port_smphr_port_status, 1720 &portsmphr_reg); 1721 if ((smphr_port_status & LPFC_PORT_SEM_MASK) == 1722 LPFC_PORT_SEM_UE_RECOVERABLE) 1723 break; 1724 /*Sleep for 1Sec, before checking SEMAPHORE */ 1725 msleep(1000); 1726 } 1727 1728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1729 "4827 smphr_port_status x%x : Waited %dSec", 1730 smphr_port_status, i); 1731 1732 /* Recoverable UE, reset the HBA device */ 1733 if ((smphr_port_status & LPFC_PORT_SEM_MASK) == 1734 LPFC_PORT_SEM_UE_RECOVERABLE) { 1735 for (i = 0; i < 20; i++) { 1736 msleep(1000); 1737 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 1738 &portsmphr_reg.word0) && 1739 (LPFC_POST_STAGE_PORT_READY == 1740 bf_get(lpfc_port_smphr_port_status, 1741 &portsmphr_reg))) { 1742 rc = lpfc_sli4_port_sta_fn_reset(phba, 1743 LPFC_MBX_NO_WAIT, en_rn_msg); 1744 if (rc == 0) 1745 return; 1746 lpfc_printf_log(phba, 1747 KERN_ERR, LOG_INIT, 1748 "4215 Failed to recover UE"); 1749 break; 1750 } 1751 } 1752 } 1753 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1754 "7624 Firmware not ready: Failing UE recovery," 1755 " waited %dSec", i); 1756 lpfc_sli4_offline_eratt(phba); 1757 break; 1758 1759 case LPFC_SLI_INTF_IF_TYPE_2: 1760 pci_rd_rc1 = lpfc_readl( 1761 phba->sli4_hba.u.if_type2.STATUSregaddr, 1762 &portstat_reg.word0); 1763 /* consider PCI bus read error as pci_channel_offline */ 1764 if (pci_rd_rc1 == -EIO) { 1765 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1766 "3151 PCI bus read access failure: x%x\n", 1767 readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); 1768 return; 1769 } 1770 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); 1771 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); 1772 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1773 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1774 "2889 Port Overtemperature event, " 1775 "taking port offline Data: x%x x%x\n", 1776 reg_err1, reg_err2); 1777 1778 phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 1779 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1780 temp_event_data.event_code = LPFC_CRIT_TEMP; 1781 temp_event_data.data = 0xFFFFFFFF; 1782 1783 shost = lpfc_shost_from_vport(phba->pport); 1784 fc_host_post_vendor_event(shost, fc_get_event_number(), 1785 sizeof(temp_event_data), 1786 (char *)&temp_event_data, 1787 SCSI_NL_VID_TYPE_PCI 1788 | PCI_VENDOR_ID_EMULEX); 1789 1790 spin_lock_irq(&phba->hbalock); 1791 phba->over_temp_state = HBA_OVER_TEMP; 1792 spin_unlock_irq(&phba->hbalock); 1793 lpfc_sli4_offline_eratt(phba); 1794 return; 1795 } 1796 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1797 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) { 1798 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1799 "3143 Port Down: Firmware Update " 1800 "Detected\n"); 1801 en_rn_msg = false; 1802 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1803 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1804 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1805 "3144 Port Down: Debug Dump\n"); 1806 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1807 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) 1808 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1809 "3145 Port Down: Provisioning\n"); 1810 1811 /* If resets are disabled then leave the HBA alone and return */ 1812 if (!phba->cfg_enable_hba_reset) 1813 return; 1814 1815 /* Check port status register for function reset */ 1816 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT, 1817 en_rn_msg); 1818 if (rc == 0) { 1819 /* don't report event on forced debug dump */ 1820 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1821 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1822 return; 1823 else 1824 break; 1825 } 1826 /* fall through for not able to recover */ 1827 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1828 "3152 Unrecoverable error, bring the port " 1829 "offline\n"); 1830 lpfc_sli4_offline_eratt(phba); 1831 break; 1832 case LPFC_SLI_INTF_IF_TYPE_1: 1833 default: 1834 break; 1835 } 1836 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1837 "3123 Report dump event to upper layer\n"); 1838 /* Send an internal error event to mgmt application */ 1839 lpfc_board_errevt_to_mgmt(phba); 1840 1841 event_data = FC_REG_DUMP_EVENT; 1842 shost = lpfc_shost_from_vport(vport); 1843 fc_host_post_vendor_event(shost, fc_get_event_number(), 1844 sizeof(event_data), (char *) &event_data, 1845 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1846 } 1847 1848 /** 1849 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1850 * @phba: pointer to lpfc HBA data structure. 1851 * 1852 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1853 * routine from the API jump table function pointer from the lpfc_hba struct. 1854 * 1855 * Return codes 1856 * 0 - success. 1857 * Any other value - error. 1858 **/ 1859 void 1860 lpfc_handle_eratt(struct lpfc_hba *phba) 1861 { 1862 (*phba->lpfc_handle_eratt)(phba); 1863 } 1864 1865 /** 1866 * lpfc_handle_latt - The HBA link event handler 1867 * @phba: pointer to lpfc hba data structure. 1868 * 1869 * This routine is invoked from the worker thread to handle a HBA host 1870 * attention link event. SLI3 only. 1871 **/ 1872 void 1873 lpfc_handle_latt(struct lpfc_hba *phba) 1874 { 1875 struct lpfc_vport *vport = phba->pport; 1876 struct lpfc_sli *psli = &phba->sli; 1877 LPFC_MBOXQ_t *pmb; 1878 volatile uint32_t control; 1879 struct lpfc_dmabuf *mp; 1880 int rc = 0; 1881 1882 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1883 if (!pmb) { 1884 rc = 1; 1885 goto lpfc_handle_latt_err_exit; 1886 } 1887 1888 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1889 if (!mp) { 1890 rc = 2; 1891 goto lpfc_handle_latt_free_pmb; 1892 } 1893 1894 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1895 if (!mp->virt) { 1896 rc = 3; 1897 goto lpfc_handle_latt_free_mp; 1898 } 1899 1900 /* Cleanup any outstanding ELS commands */ 1901 lpfc_els_flush_all_cmd(phba); 1902 1903 psli->slistat.link_event++; 1904 lpfc_read_topology(phba, pmb, mp); 1905 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1906 pmb->vport = vport; 1907 /* Block ELS IOCBs until we have processed this mbox command */ 1908 phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1909 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1910 if (rc == MBX_NOT_FINISHED) { 1911 rc = 4; 1912 goto lpfc_handle_latt_free_mbuf; 1913 } 1914 1915 /* Clear Link Attention in HA REG */ 1916 spin_lock_irq(&phba->hbalock); 1917 writel(HA_LATT, phba->HAregaddr); 1918 readl(phba->HAregaddr); /* flush */ 1919 spin_unlock_irq(&phba->hbalock); 1920 1921 return; 1922 1923 lpfc_handle_latt_free_mbuf: 1924 phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1925 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1926 lpfc_handle_latt_free_mp: 1927 kfree(mp); 1928 lpfc_handle_latt_free_pmb: 1929 mempool_free(pmb, phba->mbox_mem_pool); 1930 lpfc_handle_latt_err_exit: 1931 /* Enable Link attention interrupts */ 1932 spin_lock_irq(&phba->hbalock); 1933 psli->sli_flag |= LPFC_PROCESS_LA; 1934 control = readl(phba->HCregaddr); 1935 control |= HC_LAINT_ENA; 1936 writel(control, phba->HCregaddr); 1937 readl(phba->HCregaddr); /* flush */ 1938 1939 /* Clear Link Attention in HA REG */ 1940 writel(HA_LATT, phba->HAregaddr); 1941 readl(phba->HAregaddr); /* flush */ 1942 spin_unlock_irq(&phba->hbalock); 1943 lpfc_linkdown(phba); 1944 phba->link_state = LPFC_HBA_ERROR; 1945 1946 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1947 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1948 1949 return; 1950 } 1951 1952 /** 1953 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1954 * @phba: pointer to lpfc hba data structure. 1955 * @vpd: pointer to the vital product data. 1956 * @len: length of the vital product data in bytes. 1957 * 1958 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1959 * an array of characters. In this routine, the ModelName, ProgramType, and 1960 * ModelDesc, etc. fields of the phba data structure will be populated. 1961 * 1962 * Return codes 1963 * 0 - pointer to the VPD passed in is NULL 1964 * 1 - success 1965 **/ 1966 int 1967 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1968 { 1969 uint8_t lenlo, lenhi; 1970 int Length; 1971 int i, j; 1972 int finished = 0; 1973 int index = 0; 1974 1975 if (!vpd) 1976 return 0; 1977 1978 /* Vital Product */ 1979 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1980 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1981 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1982 (uint32_t) vpd[3]); 1983 while (!finished && (index < (len - 4))) { 1984 switch (vpd[index]) { 1985 case 0x82: 1986 case 0x91: 1987 index += 1; 1988 lenlo = vpd[index]; 1989 index += 1; 1990 lenhi = vpd[index]; 1991 index += 1; 1992 i = ((((unsigned short)lenhi) << 8) + lenlo); 1993 index += i; 1994 break; 1995 case 0x90: 1996 index += 1; 1997 lenlo = vpd[index]; 1998 index += 1; 1999 lenhi = vpd[index]; 2000 index += 1; 2001 Length = ((((unsigned short)lenhi) << 8) + lenlo); 2002 if (Length > len - index) 2003 Length = len - index; 2004 while (Length > 0) { 2005 /* Look for Serial Number */ 2006 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 2007 index += 2; 2008 i = vpd[index]; 2009 index += 1; 2010 j = 0; 2011 Length -= (3+i); 2012 while(i--) { 2013 phba->SerialNumber[j++] = vpd[index++]; 2014 if (j == 31) 2015 break; 2016 } 2017 phba->SerialNumber[j] = 0; 2018 continue; 2019 } 2020 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 2021 phba->vpd_flag |= VPD_MODEL_DESC; 2022 index += 2; 2023 i = vpd[index]; 2024 index += 1; 2025 j = 0; 2026 Length -= (3+i); 2027 while(i--) { 2028 phba->ModelDesc[j++] = vpd[index++]; 2029 if (j == 255) 2030 break; 2031 } 2032 phba->ModelDesc[j] = 0; 2033 continue; 2034 } 2035 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 2036 phba->vpd_flag |= VPD_MODEL_NAME; 2037 index += 2; 2038 i = vpd[index]; 2039 index += 1; 2040 j = 0; 2041 Length -= (3+i); 2042 while(i--) { 2043 phba->ModelName[j++] = vpd[index++]; 2044 if (j == 79) 2045 break; 2046 } 2047 phba->ModelName[j] = 0; 2048 continue; 2049 } 2050 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 2051 phba->vpd_flag |= VPD_PROGRAM_TYPE; 2052 index += 2; 2053 i = vpd[index]; 2054 index += 1; 2055 j = 0; 2056 Length -= (3+i); 2057 while(i--) { 2058 phba->ProgramType[j++] = vpd[index++]; 2059 if (j == 255) 2060 break; 2061 } 2062 phba->ProgramType[j] = 0; 2063 continue; 2064 } 2065 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 2066 phba->vpd_flag |= VPD_PORT; 2067 index += 2; 2068 i = vpd[index]; 2069 index += 1; 2070 j = 0; 2071 Length -= (3+i); 2072 while(i--) { 2073 if ((phba->sli_rev == LPFC_SLI_REV4) && 2074 (phba->sli4_hba.pport_name_sta == 2075 LPFC_SLI4_PPNAME_GET)) { 2076 j++; 2077 index++; 2078 } else 2079 phba->Port[j++] = vpd[index++]; 2080 if (j == 19) 2081 break; 2082 } 2083 if ((phba->sli_rev != LPFC_SLI_REV4) || 2084 (phba->sli4_hba.pport_name_sta == 2085 LPFC_SLI4_PPNAME_NON)) 2086 phba->Port[j] = 0; 2087 continue; 2088 } 2089 else { 2090 index += 2; 2091 i = vpd[index]; 2092 index += 1; 2093 index += i; 2094 Length -= (3 + i); 2095 } 2096 } 2097 finished = 0; 2098 break; 2099 case 0x78: 2100 finished = 1; 2101 break; 2102 default: 2103 index ++; 2104 break; 2105 } 2106 } 2107 2108 return(1); 2109 } 2110 2111 /** 2112 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 2113 * @phba: pointer to lpfc hba data structure. 2114 * @mdp: pointer to the data structure to hold the derived model name. 2115 * @descp: pointer to the data structure to hold the derived description. 2116 * 2117 * This routine retrieves HBA's description based on its registered PCI device 2118 * ID. The @descp passed into this function points to an array of 256 chars. It 2119 * shall be returned with the model name, maximum speed, and the host bus type. 2120 * The @mdp passed into this function points to an array of 80 chars. When the 2121 * function returns, the @mdp will be filled with the model name. 2122 **/ 2123 static void 2124 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 2125 { 2126 lpfc_vpd_t *vp; 2127 uint16_t dev_id = phba->pcidev->device; 2128 int max_speed; 2129 int GE = 0; 2130 int oneConnect = 0; /* default is not a oneConnect */ 2131 struct { 2132 char *name; 2133 char *bus; 2134 char *function; 2135 } m = {"<Unknown>", "", ""}; 2136 2137 if (mdp && mdp[0] != '\0' 2138 && descp && descp[0] != '\0') 2139 return; 2140 2141 if (phba->lmt & LMT_32Gb) 2142 max_speed = 32; 2143 else if (phba->lmt & LMT_16Gb) 2144 max_speed = 16; 2145 else if (phba->lmt & LMT_10Gb) 2146 max_speed = 10; 2147 else if (phba->lmt & LMT_8Gb) 2148 max_speed = 8; 2149 else if (phba->lmt & LMT_4Gb) 2150 max_speed = 4; 2151 else if (phba->lmt & LMT_2Gb) 2152 max_speed = 2; 2153 else if (phba->lmt & LMT_1Gb) 2154 max_speed = 1; 2155 else 2156 max_speed = 0; 2157 2158 vp = &phba->vpd; 2159 2160 switch (dev_id) { 2161 case PCI_DEVICE_ID_FIREFLY: 2162 m = (typeof(m)){"LP6000", "PCI", 2163 "Obsolete, Unsupported Fibre Channel Adapter"}; 2164 break; 2165 case PCI_DEVICE_ID_SUPERFLY: 2166 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 2167 m = (typeof(m)){"LP7000", "PCI", ""}; 2168 else 2169 m = (typeof(m)){"LP7000E", "PCI", ""}; 2170 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2171 break; 2172 case PCI_DEVICE_ID_DRAGONFLY: 2173 m = (typeof(m)){"LP8000", "PCI", 2174 "Obsolete, Unsupported Fibre Channel Adapter"}; 2175 break; 2176 case PCI_DEVICE_ID_CENTAUR: 2177 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 2178 m = (typeof(m)){"LP9002", "PCI", ""}; 2179 else 2180 m = (typeof(m)){"LP9000", "PCI", ""}; 2181 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2182 break; 2183 case PCI_DEVICE_ID_RFLY: 2184 m = (typeof(m)){"LP952", "PCI", 2185 "Obsolete, Unsupported Fibre Channel Adapter"}; 2186 break; 2187 case PCI_DEVICE_ID_PEGASUS: 2188 m = (typeof(m)){"LP9802", "PCI-X", 2189 "Obsolete, Unsupported Fibre Channel Adapter"}; 2190 break; 2191 case PCI_DEVICE_ID_THOR: 2192 m = (typeof(m)){"LP10000", "PCI-X", 2193 "Obsolete, Unsupported Fibre Channel Adapter"}; 2194 break; 2195 case PCI_DEVICE_ID_VIPER: 2196 m = (typeof(m)){"LPX1000", "PCI-X", 2197 "Obsolete, Unsupported Fibre Channel Adapter"}; 2198 break; 2199 case PCI_DEVICE_ID_PFLY: 2200 m = (typeof(m)){"LP982", "PCI-X", 2201 "Obsolete, Unsupported Fibre Channel Adapter"}; 2202 break; 2203 case PCI_DEVICE_ID_TFLY: 2204 m = (typeof(m)){"LP1050", "PCI-X", 2205 "Obsolete, Unsupported Fibre Channel Adapter"}; 2206 break; 2207 case PCI_DEVICE_ID_HELIOS: 2208 m = (typeof(m)){"LP11000", "PCI-X2", 2209 "Obsolete, Unsupported Fibre Channel Adapter"}; 2210 break; 2211 case PCI_DEVICE_ID_HELIOS_SCSP: 2212 m = (typeof(m)){"LP11000-SP", "PCI-X2", 2213 "Obsolete, Unsupported Fibre Channel Adapter"}; 2214 break; 2215 case PCI_DEVICE_ID_HELIOS_DCSP: 2216 m = (typeof(m)){"LP11002-SP", "PCI-X2", 2217 "Obsolete, Unsupported Fibre Channel Adapter"}; 2218 break; 2219 case PCI_DEVICE_ID_NEPTUNE: 2220 m = (typeof(m)){"LPe1000", "PCIe", 2221 "Obsolete, Unsupported Fibre Channel Adapter"}; 2222 break; 2223 case PCI_DEVICE_ID_NEPTUNE_SCSP: 2224 m = (typeof(m)){"LPe1000-SP", "PCIe", 2225 "Obsolete, Unsupported Fibre Channel Adapter"}; 2226 break; 2227 case PCI_DEVICE_ID_NEPTUNE_DCSP: 2228 m = (typeof(m)){"LPe1002-SP", "PCIe", 2229 "Obsolete, Unsupported Fibre Channel Adapter"}; 2230 break; 2231 case PCI_DEVICE_ID_BMID: 2232 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 2233 break; 2234 case PCI_DEVICE_ID_BSMB: 2235 m = (typeof(m)){"LP111", "PCI-X2", 2236 "Obsolete, Unsupported Fibre Channel Adapter"}; 2237 break; 2238 case PCI_DEVICE_ID_ZEPHYR: 2239 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2240 break; 2241 case PCI_DEVICE_ID_ZEPHYR_SCSP: 2242 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2243 break; 2244 case PCI_DEVICE_ID_ZEPHYR_DCSP: 2245 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 2246 GE = 1; 2247 break; 2248 case PCI_DEVICE_ID_ZMID: 2249 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 2250 break; 2251 case PCI_DEVICE_ID_ZSMB: 2252 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 2253 break; 2254 case PCI_DEVICE_ID_LP101: 2255 m = (typeof(m)){"LP101", "PCI-X", 2256 "Obsolete, Unsupported Fibre Channel Adapter"}; 2257 break; 2258 case PCI_DEVICE_ID_LP10000S: 2259 m = (typeof(m)){"LP10000-S", "PCI", 2260 "Obsolete, Unsupported Fibre Channel Adapter"}; 2261 break; 2262 case PCI_DEVICE_ID_LP11000S: 2263 m = (typeof(m)){"LP11000-S", "PCI-X2", 2264 "Obsolete, Unsupported Fibre Channel Adapter"}; 2265 break; 2266 case PCI_DEVICE_ID_LPE11000S: 2267 m = (typeof(m)){"LPe11000-S", "PCIe", 2268 "Obsolete, Unsupported Fibre Channel Adapter"}; 2269 break; 2270 case PCI_DEVICE_ID_SAT: 2271 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 2272 break; 2273 case PCI_DEVICE_ID_SAT_MID: 2274 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 2275 break; 2276 case PCI_DEVICE_ID_SAT_SMB: 2277 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 2278 break; 2279 case PCI_DEVICE_ID_SAT_DCSP: 2280 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 2281 break; 2282 case PCI_DEVICE_ID_SAT_SCSP: 2283 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 2284 break; 2285 case PCI_DEVICE_ID_SAT_S: 2286 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 2287 break; 2288 case PCI_DEVICE_ID_HORNET: 2289 m = (typeof(m)){"LP21000", "PCIe", 2290 "Obsolete, Unsupported FCoE Adapter"}; 2291 GE = 1; 2292 break; 2293 case PCI_DEVICE_ID_PROTEUS_VF: 2294 m = (typeof(m)){"LPev12000", "PCIe IOV", 2295 "Obsolete, Unsupported Fibre Channel Adapter"}; 2296 break; 2297 case PCI_DEVICE_ID_PROTEUS_PF: 2298 m = (typeof(m)){"LPev12000", "PCIe IOV", 2299 "Obsolete, Unsupported Fibre Channel Adapter"}; 2300 break; 2301 case PCI_DEVICE_ID_PROTEUS_S: 2302 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 2303 "Obsolete, Unsupported Fibre Channel Adapter"}; 2304 break; 2305 case PCI_DEVICE_ID_TIGERSHARK: 2306 oneConnect = 1; 2307 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2308 break; 2309 case PCI_DEVICE_ID_TOMCAT: 2310 oneConnect = 1; 2311 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2312 break; 2313 case PCI_DEVICE_ID_FALCON: 2314 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2315 "EmulexSecure Fibre"}; 2316 break; 2317 case PCI_DEVICE_ID_BALIUS: 2318 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2319 "Obsolete, Unsupported Fibre Channel Adapter"}; 2320 break; 2321 case PCI_DEVICE_ID_LANCER_FC: 2322 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2323 break; 2324 case PCI_DEVICE_ID_LANCER_FC_VF: 2325 m = (typeof(m)){"LPe16000", "PCIe", 2326 "Obsolete, Unsupported Fibre Channel Adapter"}; 2327 break; 2328 case PCI_DEVICE_ID_LANCER_FCOE: 2329 oneConnect = 1; 2330 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2331 break; 2332 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2333 oneConnect = 1; 2334 m = (typeof(m)){"OCe15100", "PCIe", 2335 "Obsolete, Unsupported FCoE"}; 2336 break; 2337 case PCI_DEVICE_ID_LANCER_G6_FC: 2338 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"}; 2339 break; 2340 case PCI_DEVICE_ID_SKYHAWK: 2341 case PCI_DEVICE_ID_SKYHAWK_VF: 2342 oneConnect = 1; 2343 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"}; 2344 break; 2345 default: 2346 m = (typeof(m)){"Unknown", "", ""}; 2347 break; 2348 } 2349 2350 if (mdp && mdp[0] == '\0') 2351 snprintf(mdp, 79,"%s", m.name); 2352 /* 2353 * oneConnect hba requires special processing, they are all initiators 2354 * and we put the port number on the end 2355 */ 2356 if (descp && descp[0] == '\0') { 2357 if (oneConnect) 2358 snprintf(descp, 255, 2359 "Emulex OneConnect %s, %s Initiator %s", 2360 m.name, m.function, 2361 phba->Port); 2362 else if (max_speed == 0) 2363 snprintf(descp, 255, 2364 "Emulex %s %s %s", 2365 m.name, m.bus, m.function); 2366 else 2367 snprintf(descp, 255, 2368 "Emulex %s %d%s %s %s", 2369 m.name, max_speed, (GE) ? "GE" : "Gb", 2370 m.bus, m.function); 2371 } 2372 } 2373 2374 /** 2375 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2376 * @phba: pointer to lpfc hba data structure. 2377 * @pring: pointer to a IOCB ring. 2378 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2379 * 2380 * This routine posts a given number of IOCBs with the associated DMA buffer 2381 * descriptors specified by the cnt argument to the given IOCB ring. 2382 * 2383 * Return codes 2384 * The number of IOCBs NOT able to be posted to the IOCB ring. 2385 **/ 2386 int 2387 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2388 { 2389 IOCB_t *icmd; 2390 struct lpfc_iocbq *iocb; 2391 struct lpfc_dmabuf *mp1, *mp2; 2392 2393 cnt += pring->missbufcnt; 2394 2395 /* While there are buffers to post */ 2396 while (cnt > 0) { 2397 /* Allocate buffer for command iocb */ 2398 iocb = lpfc_sli_get_iocbq(phba); 2399 if (iocb == NULL) { 2400 pring->missbufcnt = cnt; 2401 return cnt; 2402 } 2403 icmd = &iocb->iocb; 2404 2405 /* 2 buffers can be posted per command */ 2406 /* Allocate buffer to post */ 2407 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2408 if (mp1) 2409 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2410 if (!mp1 || !mp1->virt) { 2411 kfree(mp1); 2412 lpfc_sli_release_iocbq(phba, iocb); 2413 pring->missbufcnt = cnt; 2414 return cnt; 2415 } 2416 2417 INIT_LIST_HEAD(&mp1->list); 2418 /* Allocate buffer to post */ 2419 if (cnt > 1) { 2420 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2421 if (mp2) 2422 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2423 &mp2->phys); 2424 if (!mp2 || !mp2->virt) { 2425 kfree(mp2); 2426 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2427 kfree(mp1); 2428 lpfc_sli_release_iocbq(phba, iocb); 2429 pring->missbufcnt = cnt; 2430 return cnt; 2431 } 2432 2433 INIT_LIST_HEAD(&mp2->list); 2434 } else { 2435 mp2 = NULL; 2436 } 2437 2438 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2439 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2440 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2441 icmd->ulpBdeCount = 1; 2442 cnt--; 2443 if (mp2) { 2444 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2445 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2446 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2447 cnt--; 2448 icmd->ulpBdeCount = 2; 2449 } 2450 2451 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2452 icmd->ulpLe = 1; 2453 2454 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2455 IOCB_ERROR) { 2456 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2457 kfree(mp1); 2458 cnt++; 2459 if (mp2) { 2460 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2461 kfree(mp2); 2462 cnt++; 2463 } 2464 lpfc_sli_release_iocbq(phba, iocb); 2465 pring->missbufcnt = cnt; 2466 return cnt; 2467 } 2468 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2469 if (mp2) 2470 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2471 } 2472 pring->missbufcnt = 0; 2473 return 0; 2474 } 2475 2476 /** 2477 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2478 * @phba: pointer to lpfc hba data structure. 2479 * 2480 * This routine posts initial receive IOCB buffers to the ELS ring. The 2481 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2482 * set to 64 IOCBs. SLI3 only. 2483 * 2484 * Return codes 2485 * 0 - success (currently always success) 2486 **/ 2487 static int 2488 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2489 { 2490 struct lpfc_sli *psli = &phba->sli; 2491 2492 /* Ring 0, ELS / CT buffers */ 2493 lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2494 /* Ring 2 - FCP no buffers needed */ 2495 2496 return 0; 2497 } 2498 2499 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2500 2501 /** 2502 * lpfc_sha_init - Set up initial array of hash table entries 2503 * @HashResultPointer: pointer to an array as hash table. 2504 * 2505 * This routine sets up the initial values to the array of hash table entries 2506 * for the LC HBAs. 2507 **/ 2508 static void 2509 lpfc_sha_init(uint32_t * HashResultPointer) 2510 { 2511 HashResultPointer[0] = 0x67452301; 2512 HashResultPointer[1] = 0xEFCDAB89; 2513 HashResultPointer[2] = 0x98BADCFE; 2514 HashResultPointer[3] = 0x10325476; 2515 HashResultPointer[4] = 0xC3D2E1F0; 2516 } 2517 2518 /** 2519 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2520 * @HashResultPointer: pointer to an initial/result hash table. 2521 * @HashWorkingPointer: pointer to an working hash table. 2522 * 2523 * This routine iterates an initial hash table pointed by @HashResultPointer 2524 * with the values from the working hash table pointeed by @HashWorkingPointer. 2525 * The results are putting back to the initial hash table, returned through 2526 * the @HashResultPointer as the result hash table. 2527 **/ 2528 static void 2529 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2530 { 2531 int t; 2532 uint32_t TEMP; 2533 uint32_t A, B, C, D, E; 2534 t = 16; 2535 do { 2536 HashWorkingPointer[t] = 2537 S(1, 2538 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2539 8] ^ 2540 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2541 } while (++t <= 79); 2542 t = 0; 2543 A = HashResultPointer[0]; 2544 B = HashResultPointer[1]; 2545 C = HashResultPointer[2]; 2546 D = HashResultPointer[3]; 2547 E = HashResultPointer[4]; 2548 2549 do { 2550 if (t < 20) { 2551 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2552 } else if (t < 40) { 2553 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2554 } else if (t < 60) { 2555 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2556 } else { 2557 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2558 } 2559 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2560 E = D; 2561 D = C; 2562 C = S(30, B); 2563 B = A; 2564 A = TEMP; 2565 } while (++t <= 79); 2566 2567 HashResultPointer[0] += A; 2568 HashResultPointer[1] += B; 2569 HashResultPointer[2] += C; 2570 HashResultPointer[3] += D; 2571 HashResultPointer[4] += E; 2572 2573 } 2574 2575 /** 2576 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2577 * @RandomChallenge: pointer to the entry of host challenge random number array. 2578 * @HashWorking: pointer to the entry of the working hash array. 2579 * 2580 * This routine calculates the working hash array referred by @HashWorking 2581 * from the challenge random numbers associated with the host, referred by 2582 * @RandomChallenge. The result is put into the entry of the working hash 2583 * array and returned by reference through @HashWorking. 2584 **/ 2585 static void 2586 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2587 { 2588 *HashWorking = (*RandomChallenge ^ *HashWorking); 2589 } 2590 2591 /** 2592 * lpfc_hba_init - Perform special handling for LC HBA initialization 2593 * @phba: pointer to lpfc hba data structure. 2594 * @hbainit: pointer to an array of unsigned 32-bit integers. 2595 * 2596 * This routine performs the special handling for LC HBA initialization. 2597 **/ 2598 void 2599 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2600 { 2601 int t; 2602 uint32_t *HashWorking; 2603 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2604 2605 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2606 if (!HashWorking) 2607 return; 2608 2609 HashWorking[0] = HashWorking[78] = *pwwnn++; 2610 HashWorking[1] = HashWorking[79] = *pwwnn; 2611 2612 for (t = 0; t < 7; t++) 2613 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2614 2615 lpfc_sha_init(hbainit); 2616 lpfc_sha_iterate(hbainit, HashWorking); 2617 kfree(HashWorking); 2618 } 2619 2620 /** 2621 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2622 * @vport: pointer to a virtual N_Port data structure. 2623 * 2624 * This routine performs the necessary cleanups before deleting the @vport. 2625 * It invokes the discovery state machine to perform necessary state 2626 * transitions and to release the ndlps associated with the @vport. Note, 2627 * the physical port is treated as @vport 0. 2628 **/ 2629 void 2630 lpfc_cleanup(struct lpfc_vport *vport) 2631 { 2632 struct lpfc_hba *phba = vport->phba; 2633 struct lpfc_nodelist *ndlp, *next_ndlp; 2634 int i = 0; 2635 2636 if (phba->link_state > LPFC_LINK_DOWN) 2637 lpfc_port_link_failure(vport); 2638 2639 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2640 if (!NLP_CHK_NODE_ACT(ndlp)) { 2641 ndlp = lpfc_enable_node(vport, ndlp, 2642 NLP_STE_UNUSED_NODE); 2643 if (!ndlp) 2644 continue; 2645 spin_lock_irq(&phba->ndlp_lock); 2646 NLP_SET_FREE_REQ(ndlp); 2647 spin_unlock_irq(&phba->ndlp_lock); 2648 /* Trigger the release of the ndlp memory */ 2649 lpfc_nlp_put(ndlp); 2650 continue; 2651 } 2652 spin_lock_irq(&phba->ndlp_lock); 2653 if (NLP_CHK_FREE_REQ(ndlp)) { 2654 /* The ndlp should not be in memory free mode already */ 2655 spin_unlock_irq(&phba->ndlp_lock); 2656 continue; 2657 } else 2658 /* Indicate request for freeing ndlp memory */ 2659 NLP_SET_FREE_REQ(ndlp); 2660 spin_unlock_irq(&phba->ndlp_lock); 2661 2662 if (vport->port_type != LPFC_PHYSICAL_PORT && 2663 ndlp->nlp_DID == Fabric_DID) { 2664 /* Just free up ndlp with Fabric_DID for vports */ 2665 lpfc_nlp_put(ndlp); 2666 continue; 2667 } 2668 2669 /* take care of nodes in unused state before the state 2670 * machine taking action. 2671 */ 2672 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 2673 lpfc_nlp_put(ndlp); 2674 continue; 2675 } 2676 2677 if (ndlp->nlp_type & NLP_FABRIC) 2678 lpfc_disc_state_machine(vport, ndlp, NULL, 2679 NLP_EVT_DEVICE_RECOVERY); 2680 2681 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) { 2682 /* Remove the NVME transport reference now and 2683 * continue to remove the node. 2684 */ 2685 lpfc_nlp_put(ndlp); 2686 } 2687 2688 lpfc_disc_state_machine(vport, ndlp, NULL, 2689 NLP_EVT_DEVICE_RM); 2690 } 2691 2692 /* At this point, ALL ndlp's should be gone 2693 * because of the previous NLP_EVT_DEVICE_RM. 2694 * Lets wait for this to happen, if needed. 2695 */ 2696 while (!list_empty(&vport->fc_nodes)) { 2697 if (i++ > 3000) { 2698 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2699 "0233 Nodelist not empty\n"); 2700 list_for_each_entry_safe(ndlp, next_ndlp, 2701 &vport->fc_nodes, nlp_listp) { 2702 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2703 LOG_NODE, 2704 "0282 did:x%x ndlp:x%p " 2705 "usgmap:x%x refcnt:%d\n", 2706 ndlp->nlp_DID, (void *)ndlp, 2707 ndlp->nlp_usg_map, 2708 kref_read(&ndlp->kref)); 2709 } 2710 break; 2711 } 2712 2713 /* Wait for any activity on ndlps to settle */ 2714 msleep(10); 2715 } 2716 lpfc_cleanup_vports_rrqs(vport, NULL); 2717 } 2718 2719 /** 2720 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2721 * @vport: pointer to a virtual N_Port data structure. 2722 * 2723 * This routine stops all the timers associated with a @vport. This function 2724 * is invoked before disabling or deleting a @vport. Note that the physical 2725 * port is treated as @vport 0. 2726 **/ 2727 void 2728 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2729 { 2730 del_timer_sync(&vport->els_tmofunc); 2731 del_timer_sync(&vport->delayed_disc_tmo); 2732 lpfc_can_disctmo(vport); 2733 return; 2734 } 2735 2736 /** 2737 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2738 * @phba: pointer to lpfc hba data structure. 2739 * 2740 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2741 * caller of this routine should already hold the host lock. 2742 **/ 2743 void 2744 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2745 { 2746 /* Clear pending FCF rediscovery wait flag */ 2747 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2748 2749 /* Now, try to stop the timer */ 2750 del_timer(&phba->fcf.redisc_wait); 2751 } 2752 2753 /** 2754 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2755 * @phba: pointer to lpfc hba data structure. 2756 * 2757 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2758 * checks whether the FCF rediscovery wait timer is pending with the host 2759 * lock held before proceeding with disabling the timer and clearing the 2760 * wait timer pendig flag. 2761 **/ 2762 void 2763 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2764 { 2765 spin_lock_irq(&phba->hbalock); 2766 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2767 /* FCF rediscovery timer already fired or stopped */ 2768 spin_unlock_irq(&phba->hbalock); 2769 return; 2770 } 2771 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2772 /* Clear failover in progress flags */ 2773 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2774 spin_unlock_irq(&phba->hbalock); 2775 } 2776 2777 /** 2778 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2779 * @phba: pointer to lpfc hba data structure. 2780 * 2781 * This routine stops all the timers associated with a HBA. This function is 2782 * invoked before either putting a HBA offline or unloading the driver. 2783 **/ 2784 void 2785 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2786 { 2787 lpfc_stop_vport_timers(phba->pport); 2788 del_timer_sync(&phba->sli.mbox_tmo); 2789 del_timer_sync(&phba->fabric_block_timer); 2790 del_timer_sync(&phba->eratt_poll); 2791 del_timer_sync(&phba->hb_tmofunc); 2792 if (phba->sli_rev == LPFC_SLI_REV4) { 2793 del_timer_sync(&phba->rrq_tmr); 2794 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2795 } 2796 phba->hb_outstanding = 0; 2797 2798 switch (phba->pci_dev_grp) { 2799 case LPFC_PCI_DEV_LP: 2800 /* Stop any LightPulse device specific driver timers */ 2801 del_timer_sync(&phba->fcp_poll_timer); 2802 break; 2803 case LPFC_PCI_DEV_OC: 2804 /* Stop any OneConnect device sepcific driver timers */ 2805 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2806 break; 2807 default: 2808 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2809 "0297 Invalid device group (x%x)\n", 2810 phba->pci_dev_grp); 2811 break; 2812 } 2813 return; 2814 } 2815 2816 /** 2817 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2818 * @phba: pointer to lpfc hba data structure. 2819 * 2820 * This routine marks a HBA's management interface as blocked. Once the HBA's 2821 * management interface is marked as blocked, all the user space access to 2822 * the HBA, whether they are from sysfs interface or libdfc interface will 2823 * all be blocked. The HBA is set to block the management interface when the 2824 * driver prepares the HBA interface for online or offline. 2825 **/ 2826 static void 2827 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action) 2828 { 2829 unsigned long iflag; 2830 uint8_t actcmd = MBX_HEARTBEAT; 2831 unsigned long timeout; 2832 2833 spin_lock_irqsave(&phba->hbalock, iflag); 2834 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2835 spin_unlock_irqrestore(&phba->hbalock, iflag); 2836 if (mbx_action == LPFC_MBX_NO_WAIT) 2837 return; 2838 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2839 spin_lock_irqsave(&phba->hbalock, iflag); 2840 if (phba->sli.mbox_active) { 2841 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2842 /* Determine how long we might wait for the active mailbox 2843 * command to be gracefully completed by firmware. 2844 */ 2845 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2846 phba->sli.mbox_active) * 1000) + jiffies; 2847 } 2848 spin_unlock_irqrestore(&phba->hbalock, iflag); 2849 2850 /* Wait for the outstnading mailbox command to complete */ 2851 while (phba->sli.mbox_active) { 2852 /* Check active mailbox complete status every 2ms */ 2853 msleep(2); 2854 if (time_after(jiffies, timeout)) { 2855 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2856 "2813 Mgmt IO is Blocked %x " 2857 "- mbox cmd %x still active\n", 2858 phba->sli.sli_flag, actcmd); 2859 break; 2860 } 2861 } 2862 } 2863 2864 /** 2865 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 2866 * @phba: pointer to lpfc hba data structure. 2867 * 2868 * Allocate RPIs for all active remote nodes. This is needed whenever 2869 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 2870 * is to fixup the temporary rpi assignments. 2871 **/ 2872 void 2873 lpfc_sli4_node_prep(struct lpfc_hba *phba) 2874 { 2875 struct lpfc_nodelist *ndlp, *next_ndlp; 2876 struct lpfc_vport **vports; 2877 int i; 2878 2879 if (phba->sli_rev != LPFC_SLI_REV4) 2880 return; 2881 2882 vports = lpfc_create_vport_work_array(phba); 2883 if (vports != NULL) { 2884 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2885 if (vports[i]->load_flag & FC_UNLOADING) 2886 continue; 2887 2888 list_for_each_entry_safe(ndlp, next_ndlp, 2889 &vports[i]->fc_nodes, 2890 nlp_listp) { 2891 if (NLP_CHK_NODE_ACT(ndlp)) { 2892 ndlp->nlp_rpi = 2893 lpfc_sli4_alloc_rpi(phba); 2894 lpfc_printf_vlog(ndlp->vport, KERN_INFO, 2895 LOG_NODE, 2896 "0009 rpi:%x DID:%x " 2897 "flg:%x map:%x %p\n", 2898 ndlp->nlp_rpi, 2899 ndlp->nlp_DID, 2900 ndlp->nlp_flag, 2901 ndlp->nlp_usg_map, 2902 ndlp); 2903 } 2904 } 2905 } 2906 } 2907 lpfc_destroy_vport_work_array(phba, vports); 2908 } 2909 2910 /** 2911 * lpfc_online - Initialize and bring a HBA online 2912 * @phba: pointer to lpfc hba data structure. 2913 * 2914 * This routine initializes the HBA and brings a HBA online. During this 2915 * process, the management interface is blocked to prevent user space access 2916 * to the HBA interfering with the driver initialization. 2917 * 2918 * Return codes 2919 * 0 - successful 2920 * 1 - failed 2921 **/ 2922 int 2923 lpfc_online(struct lpfc_hba *phba) 2924 { 2925 struct lpfc_vport *vport; 2926 struct lpfc_vport **vports; 2927 int i; 2928 bool vpis_cleared = false; 2929 2930 if (!phba) 2931 return 0; 2932 vport = phba->pport; 2933 2934 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2935 return 0; 2936 2937 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2938 "0458 Bring Adapter online\n"); 2939 2940 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 2941 2942 if (phba->sli_rev == LPFC_SLI_REV4) { 2943 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2944 lpfc_unblock_mgmt_io(phba); 2945 return 1; 2946 } 2947 spin_lock_irq(&phba->hbalock); 2948 if (!phba->sli4_hba.max_cfg_param.vpi_used) 2949 vpis_cleared = true; 2950 spin_unlock_irq(&phba->hbalock); 2951 } else { 2952 lpfc_sli_queue_init(phba); 2953 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2954 lpfc_unblock_mgmt_io(phba); 2955 return 1; 2956 } 2957 } 2958 2959 vports = lpfc_create_vport_work_array(phba); 2960 if (vports != NULL) { 2961 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2962 struct Scsi_Host *shost; 2963 shost = lpfc_shost_from_vport(vports[i]); 2964 spin_lock_irq(shost->host_lock); 2965 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2966 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2967 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2968 if (phba->sli_rev == LPFC_SLI_REV4) { 2969 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2970 if ((vpis_cleared) && 2971 (vports[i]->port_type != 2972 LPFC_PHYSICAL_PORT)) 2973 vports[i]->vpi = 0; 2974 } 2975 spin_unlock_irq(shost->host_lock); 2976 } 2977 } 2978 lpfc_destroy_vport_work_array(phba, vports); 2979 2980 lpfc_unblock_mgmt_io(phba); 2981 return 0; 2982 } 2983 2984 /** 2985 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2986 * @phba: pointer to lpfc hba data structure. 2987 * 2988 * This routine marks a HBA's management interface as not blocked. Once the 2989 * HBA's management interface is marked as not blocked, all the user space 2990 * access to the HBA, whether they are from sysfs interface or libdfc 2991 * interface will be allowed. The HBA is set to block the management interface 2992 * when the driver prepares the HBA interface for online or offline and then 2993 * set to unblock the management interface afterwards. 2994 **/ 2995 void 2996 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2997 { 2998 unsigned long iflag; 2999 3000 spin_lock_irqsave(&phba->hbalock, iflag); 3001 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 3002 spin_unlock_irqrestore(&phba->hbalock, iflag); 3003 } 3004 3005 /** 3006 * lpfc_offline_prep - Prepare a HBA to be brought offline 3007 * @phba: pointer to lpfc hba data structure. 3008 * 3009 * This routine is invoked to prepare a HBA to be brought offline. It performs 3010 * unregistration login to all the nodes on all vports and flushes the mailbox 3011 * queue to make it ready to be brought offline. 3012 **/ 3013 void 3014 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) 3015 { 3016 struct lpfc_vport *vport = phba->pport; 3017 struct lpfc_nodelist *ndlp, *next_ndlp; 3018 struct lpfc_vport **vports; 3019 struct Scsi_Host *shost; 3020 int i; 3021 3022 if (vport->fc_flag & FC_OFFLINE_MODE) 3023 return; 3024 3025 lpfc_block_mgmt_io(phba, mbx_action); 3026 3027 lpfc_linkdown(phba); 3028 3029 /* Issue an unreg_login to all nodes on all vports */ 3030 vports = lpfc_create_vport_work_array(phba); 3031 if (vports != NULL) { 3032 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3033 if (vports[i]->load_flag & FC_UNLOADING) 3034 continue; 3035 shost = lpfc_shost_from_vport(vports[i]); 3036 spin_lock_irq(shost->host_lock); 3037 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 3038 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3039 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 3040 spin_unlock_irq(shost->host_lock); 3041 3042 shost = lpfc_shost_from_vport(vports[i]); 3043 list_for_each_entry_safe(ndlp, next_ndlp, 3044 &vports[i]->fc_nodes, 3045 nlp_listp) { 3046 if (!NLP_CHK_NODE_ACT(ndlp)) 3047 continue; 3048 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 3049 continue; 3050 if (ndlp->nlp_type & NLP_FABRIC) { 3051 lpfc_disc_state_machine(vports[i], ndlp, 3052 NULL, NLP_EVT_DEVICE_RECOVERY); 3053 lpfc_disc_state_machine(vports[i], ndlp, 3054 NULL, NLP_EVT_DEVICE_RM); 3055 } 3056 spin_lock_irq(shost->host_lock); 3057 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 3058 spin_unlock_irq(shost->host_lock); 3059 /* 3060 * Whenever an SLI4 port goes offline, free the 3061 * RPI. Get a new RPI when the adapter port 3062 * comes back online. 3063 */ 3064 if (phba->sli_rev == LPFC_SLI_REV4) { 3065 lpfc_printf_vlog(ndlp->vport, 3066 KERN_INFO, LOG_NODE, 3067 "0011 lpfc_offline: " 3068 "ndlp:x%p did %x " 3069 "usgmap:x%x rpi:%x\n", 3070 ndlp, ndlp->nlp_DID, 3071 ndlp->nlp_usg_map, 3072 ndlp->nlp_rpi); 3073 3074 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 3075 } 3076 lpfc_unreg_rpi(vports[i], ndlp); 3077 } 3078 } 3079 } 3080 lpfc_destroy_vport_work_array(phba, vports); 3081 3082 lpfc_sli_mbox_sys_shutdown(phba, mbx_action); 3083 } 3084 3085 /** 3086 * lpfc_offline - Bring a HBA offline 3087 * @phba: pointer to lpfc hba data structure. 3088 * 3089 * This routine actually brings a HBA offline. It stops all the timers 3090 * associated with the HBA, brings down the SLI layer, and eventually 3091 * marks the HBA as in offline state for the upper layer protocol. 3092 **/ 3093 void 3094 lpfc_offline(struct lpfc_hba *phba) 3095 { 3096 struct Scsi_Host *shost; 3097 struct lpfc_vport **vports; 3098 int i; 3099 3100 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 3101 return; 3102 3103 /* stop port and all timers associated with this hba */ 3104 lpfc_stop_port(phba); 3105 vports = lpfc_create_vport_work_array(phba); 3106 if (vports != NULL) 3107 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3108 lpfc_stop_vport_timers(vports[i]); 3109 lpfc_destroy_vport_work_array(phba, vports); 3110 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3111 "0460 Bring Adapter offline\n"); 3112 /* Bring down the SLI Layer and cleanup. The HBA is offline 3113 now. */ 3114 lpfc_sli_hba_down(phba); 3115 spin_lock_irq(&phba->hbalock); 3116 phba->work_ha = 0; 3117 spin_unlock_irq(&phba->hbalock); 3118 vports = lpfc_create_vport_work_array(phba); 3119 if (vports != NULL) 3120 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3121 shost = lpfc_shost_from_vport(vports[i]); 3122 spin_lock_irq(shost->host_lock); 3123 vports[i]->work_port_events = 0; 3124 vports[i]->fc_flag |= FC_OFFLINE_MODE; 3125 spin_unlock_irq(shost->host_lock); 3126 } 3127 lpfc_destroy_vport_work_array(phba, vports); 3128 } 3129 3130 /** 3131 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 3132 * @phba: pointer to lpfc hba data structure. 3133 * 3134 * This routine is to free all the SCSI buffers and IOCBs from the driver 3135 * list back to kernel. It is called from lpfc_pci_remove_one to free 3136 * the internal resources before the device is removed from the system. 3137 **/ 3138 static void 3139 lpfc_scsi_free(struct lpfc_hba *phba) 3140 { 3141 struct lpfc_scsi_buf *sb, *sb_next; 3142 3143 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 3144 return; 3145 3146 spin_lock_irq(&phba->hbalock); 3147 3148 /* Release all the lpfc_scsi_bufs maintained by this host. */ 3149 3150 spin_lock(&phba->scsi_buf_list_put_lock); 3151 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put, 3152 list) { 3153 list_del(&sb->list); 3154 pci_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3155 sb->dma_handle); 3156 kfree(sb); 3157 phba->total_scsi_bufs--; 3158 } 3159 spin_unlock(&phba->scsi_buf_list_put_lock); 3160 3161 spin_lock(&phba->scsi_buf_list_get_lock); 3162 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get, 3163 list) { 3164 list_del(&sb->list); 3165 pci_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3166 sb->dma_handle); 3167 kfree(sb); 3168 phba->total_scsi_bufs--; 3169 } 3170 spin_unlock(&phba->scsi_buf_list_get_lock); 3171 spin_unlock_irq(&phba->hbalock); 3172 } 3173 /** 3174 * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists 3175 * @phba: pointer to lpfc hba data structure. 3176 * 3177 * This routine is to free all the NVME buffers and IOCBs from the driver 3178 * list back to kernel. It is called from lpfc_pci_remove_one to free 3179 * the internal resources before the device is removed from the system. 3180 **/ 3181 static void 3182 lpfc_nvme_free(struct lpfc_hba *phba) 3183 { 3184 struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next; 3185 3186 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 3187 return; 3188 3189 spin_lock_irq(&phba->hbalock); 3190 3191 /* Release all the lpfc_nvme_bufs maintained by this host. */ 3192 spin_lock(&phba->nvme_buf_list_put_lock); 3193 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3194 &phba->lpfc_nvme_buf_list_put, list) { 3195 list_del(&lpfc_ncmd->list); 3196 pci_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, 3197 lpfc_ncmd->dma_handle); 3198 kfree(lpfc_ncmd); 3199 phba->total_nvme_bufs--; 3200 } 3201 spin_unlock(&phba->nvme_buf_list_put_lock); 3202 3203 spin_lock(&phba->nvme_buf_list_get_lock); 3204 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3205 &phba->lpfc_nvme_buf_list_get, list) { 3206 list_del(&lpfc_ncmd->list); 3207 pci_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, 3208 lpfc_ncmd->dma_handle); 3209 kfree(lpfc_ncmd); 3210 phba->total_nvme_bufs--; 3211 } 3212 spin_unlock(&phba->nvme_buf_list_get_lock); 3213 spin_unlock_irq(&phba->hbalock); 3214 } 3215 /** 3216 * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping 3217 * @phba: pointer to lpfc hba data structure. 3218 * 3219 * This routine first calculates the sizes of the current els and allocated 3220 * scsi sgl lists, and then goes through all sgls to updates the physical 3221 * XRIs assigned due to port function reset. During port initialization, the 3222 * current els and allocated scsi sgl lists are 0s. 3223 * 3224 * Return codes 3225 * 0 - successful (for now, it always returns 0) 3226 **/ 3227 int 3228 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba) 3229 { 3230 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3231 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3232 LIST_HEAD(els_sgl_list); 3233 int rc; 3234 3235 /* 3236 * update on pci function's els xri-sgl list 3237 */ 3238 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3239 3240 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 3241 /* els xri-sgl expanded */ 3242 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 3243 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3244 "3157 ELS xri-sgl count increased from " 3245 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3246 els_xri_cnt); 3247 /* allocate the additional els sgls */ 3248 for (i = 0; i < xri_cnt; i++) { 3249 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3250 GFP_KERNEL); 3251 if (sglq_entry == NULL) { 3252 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3253 "2562 Failure to allocate an " 3254 "ELS sgl entry:%d\n", i); 3255 rc = -ENOMEM; 3256 goto out_free_mem; 3257 } 3258 sglq_entry->buff_type = GEN_BUFF_TYPE; 3259 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 3260 &sglq_entry->phys); 3261 if (sglq_entry->virt == NULL) { 3262 kfree(sglq_entry); 3263 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3264 "2563 Failure to allocate an " 3265 "ELS mbuf:%d\n", i); 3266 rc = -ENOMEM; 3267 goto out_free_mem; 3268 } 3269 sglq_entry->sgl = sglq_entry->virt; 3270 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 3271 sglq_entry->state = SGL_FREED; 3272 list_add_tail(&sglq_entry->list, &els_sgl_list); 3273 } 3274 spin_lock_irq(&phba->hbalock); 3275 spin_lock(&phba->sli4_hba.sgl_list_lock); 3276 list_splice_init(&els_sgl_list, 3277 &phba->sli4_hba.lpfc_els_sgl_list); 3278 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3279 spin_unlock_irq(&phba->hbalock); 3280 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 3281 /* els xri-sgl shrinked */ 3282 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 3283 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3284 "3158 ELS xri-sgl count decreased from " 3285 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3286 els_xri_cnt); 3287 spin_lock_irq(&phba->hbalock); 3288 spin_lock(&phba->sli4_hba.sgl_list_lock); 3289 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, 3290 &els_sgl_list); 3291 /* release extra els sgls from list */ 3292 for (i = 0; i < xri_cnt; i++) { 3293 list_remove_head(&els_sgl_list, 3294 sglq_entry, struct lpfc_sglq, list); 3295 if (sglq_entry) { 3296 __lpfc_mbuf_free(phba, sglq_entry->virt, 3297 sglq_entry->phys); 3298 kfree(sglq_entry); 3299 } 3300 } 3301 list_splice_init(&els_sgl_list, 3302 &phba->sli4_hba.lpfc_els_sgl_list); 3303 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3304 spin_unlock_irq(&phba->hbalock); 3305 } else 3306 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3307 "3163 ELS xri-sgl count unchanged: %d\n", 3308 els_xri_cnt); 3309 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 3310 3311 /* update xris to els sgls on the list */ 3312 sglq_entry = NULL; 3313 sglq_entry_next = NULL; 3314 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3315 &phba->sli4_hba.lpfc_els_sgl_list, list) { 3316 lxri = lpfc_sli4_next_xritag(phba); 3317 if (lxri == NO_XRI) { 3318 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3319 "2400 Failed to allocate xri for " 3320 "ELS sgl\n"); 3321 rc = -ENOMEM; 3322 goto out_free_mem; 3323 } 3324 sglq_entry->sli4_lxritag = lxri; 3325 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3326 } 3327 return 0; 3328 3329 out_free_mem: 3330 lpfc_free_els_sgl_list(phba); 3331 return rc; 3332 } 3333 3334 /** 3335 * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping 3336 * @phba: pointer to lpfc hba data structure. 3337 * 3338 * This routine first calculates the sizes of the current els and allocated 3339 * scsi sgl lists, and then goes through all sgls to updates the physical 3340 * XRIs assigned due to port function reset. During port initialization, the 3341 * current els and allocated scsi sgl lists are 0s. 3342 * 3343 * Return codes 3344 * 0 - successful (for now, it always returns 0) 3345 **/ 3346 int 3347 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba) 3348 { 3349 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3350 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3351 uint16_t nvmet_xri_cnt, tot_cnt; 3352 LIST_HEAD(nvmet_sgl_list); 3353 int rc; 3354 3355 /* 3356 * update on pci function's nvmet xri-sgl list 3357 */ 3358 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3359 nvmet_xri_cnt = phba->cfg_nvmet_mrq * phba->cfg_nvmet_mrq_post; 3360 tot_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3361 if (nvmet_xri_cnt > tot_cnt) { 3362 phba->cfg_nvmet_mrq_post = tot_cnt / phba->cfg_nvmet_mrq; 3363 nvmet_xri_cnt = phba->cfg_nvmet_mrq * phba->cfg_nvmet_mrq_post; 3364 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3365 "6301 NVMET post-sgl count changed to %d\n", 3366 phba->cfg_nvmet_mrq_post); 3367 } 3368 3369 if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) { 3370 /* els xri-sgl expanded */ 3371 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt; 3372 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3373 "6302 NVMET xri-sgl cnt grew from %d to %d\n", 3374 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt); 3375 /* allocate the additional nvmet sgls */ 3376 for (i = 0; i < xri_cnt; i++) { 3377 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3378 GFP_KERNEL); 3379 if (sglq_entry == NULL) { 3380 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3381 "6303 Failure to allocate an " 3382 "NVMET sgl entry:%d\n", i); 3383 rc = -ENOMEM; 3384 goto out_free_mem; 3385 } 3386 sglq_entry->buff_type = NVMET_BUFF_TYPE; 3387 sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0, 3388 &sglq_entry->phys); 3389 if (sglq_entry->virt == NULL) { 3390 kfree(sglq_entry); 3391 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3392 "6304 Failure to allocate an " 3393 "NVMET buf:%d\n", i); 3394 rc = -ENOMEM; 3395 goto out_free_mem; 3396 } 3397 sglq_entry->sgl = sglq_entry->virt; 3398 memset(sglq_entry->sgl, 0, 3399 phba->cfg_sg_dma_buf_size); 3400 sglq_entry->state = SGL_FREED; 3401 list_add_tail(&sglq_entry->list, &nvmet_sgl_list); 3402 } 3403 spin_lock_irq(&phba->hbalock); 3404 spin_lock(&phba->sli4_hba.sgl_list_lock); 3405 list_splice_init(&nvmet_sgl_list, 3406 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3407 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3408 spin_unlock_irq(&phba->hbalock); 3409 } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) { 3410 /* nvmet xri-sgl shrunk */ 3411 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt; 3412 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3413 "6305 NVMET xri-sgl count decreased from " 3414 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt, 3415 nvmet_xri_cnt); 3416 spin_lock_irq(&phba->hbalock); 3417 spin_lock(&phba->sli4_hba.sgl_list_lock); 3418 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, 3419 &nvmet_sgl_list); 3420 /* release extra nvmet sgls from list */ 3421 for (i = 0; i < xri_cnt; i++) { 3422 list_remove_head(&nvmet_sgl_list, 3423 sglq_entry, struct lpfc_sglq, list); 3424 if (sglq_entry) { 3425 lpfc_nvmet_buf_free(phba, sglq_entry->virt, 3426 sglq_entry->phys); 3427 kfree(sglq_entry); 3428 } 3429 } 3430 list_splice_init(&nvmet_sgl_list, 3431 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3432 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3433 spin_unlock_irq(&phba->hbalock); 3434 } else 3435 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3436 "6306 NVMET xri-sgl count unchanged: %d\n", 3437 nvmet_xri_cnt); 3438 phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt; 3439 3440 /* update xris to nvmet sgls on the list */ 3441 sglq_entry = NULL; 3442 sglq_entry_next = NULL; 3443 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3444 &phba->sli4_hba.lpfc_nvmet_sgl_list, list) { 3445 lxri = lpfc_sli4_next_xritag(phba); 3446 if (lxri == NO_XRI) { 3447 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3448 "6307 Failed to allocate xri for " 3449 "NVMET sgl\n"); 3450 rc = -ENOMEM; 3451 goto out_free_mem; 3452 } 3453 sglq_entry->sli4_lxritag = lxri; 3454 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3455 } 3456 return 0; 3457 3458 out_free_mem: 3459 lpfc_free_nvmet_sgl_list(phba); 3460 return rc; 3461 } 3462 3463 /** 3464 * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping 3465 * @phba: pointer to lpfc hba data structure. 3466 * 3467 * This routine first calculates the sizes of the current els and allocated 3468 * scsi sgl lists, and then goes through all sgls to updates the physical 3469 * XRIs assigned due to port function reset. During port initialization, the 3470 * current els and allocated scsi sgl lists are 0s. 3471 * 3472 * Return codes 3473 * 0 - successful (for now, it always returns 0) 3474 **/ 3475 int 3476 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba) 3477 { 3478 struct lpfc_scsi_buf *psb, *psb_next; 3479 uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt; 3480 LIST_HEAD(scsi_sgl_list); 3481 int rc; 3482 3483 /* 3484 * update on pci function's els xri-sgl list 3485 */ 3486 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3487 phba->total_scsi_bufs = 0; 3488 3489 /* 3490 * update on pci function's allocated scsi xri-sgl list 3491 */ 3492 /* maximum number of xris available for scsi buffers */ 3493 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - 3494 els_xri_cnt; 3495 3496 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 3497 return 0; 3498 3499 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 3500 phba->sli4_hba.scsi_xri_max = /* Split them up */ 3501 (phba->sli4_hba.scsi_xri_max * 3502 phba->cfg_xri_split) / 100; 3503 3504 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3505 spin_lock(&phba->scsi_buf_list_put_lock); 3506 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list); 3507 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list); 3508 spin_unlock(&phba->scsi_buf_list_put_lock); 3509 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3510 3511 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { 3512 /* max scsi xri shrinked below the allocated scsi buffers */ 3513 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - 3514 phba->sli4_hba.scsi_xri_max; 3515 /* release the extra allocated scsi buffers */ 3516 for (i = 0; i < scsi_xri_cnt; i++) { 3517 list_remove_head(&scsi_sgl_list, psb, 3518 struct lpfc_scsi_buf, list); 3519 if (psb) { 3520 pci_pool_free(phba->lpfc_sg_dma_buf_pool, 3521 psb->data, psb->dma_handle); 3522 kfree(psb); 3523 } 3524 } 3525 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3526 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; 3527 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3528 } 3529 3530 /* update xris associated to remaining allocated scsi buffers */ 3531 psb = NULL; 3532 psb_next = NULL; 3533 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { 3534 lxri = lpfc_sli4_next_xritag(phba); 3535 if (lxri == NO_XRI) { 3536 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3537 "2560 Failed to allocate xri for " 3538 "scsi buffer\n"); 3539 rc = -ENOMEM; 3540 goto out_free_mem; 3541 } 3542 psb->cur_iocbq.sli4_lxritag = lxri; 3543 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3544 } 3545 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3546 spin_lock(&phba->scsi_buf_list_put_lock); 3547 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get); 3548 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 3549 spin_unlock(&phba->scsi_buf_list_put_lock); 3550 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3551 return 0; 3552 3553 out_free_mem: 3554 lpfc_scsi_free(phba); 3555 return rc; 3556 } 3557 3558 /** 3559 * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping 3560 * @phba: pointer to lpfc hba data structure. 3561 * 3562 * This routine first calculates the sizes of the current els and allocated 3563 * scsi sgl lists, and then goes through all sgls to updates the physical 3564 * XRIs assigned due to port function reset. During port initialization, the 3565 * current els and allocated scsi sgl lists are 0s. 3566 * 3567 * Return codes 3568 * 0 - successful (for now, it always returns 0) 3569 **/ 3570 int 3571 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba) 3572 { 3573 struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL; 3574 uint16_t i, lxri, els_xri_cnt; 3575 uint16_t nvme_xri_cnt, nvme_xri_max; 3576 LIST_HEAD(nvme_sgl_list); 3577 int rc; 3578 3579 phba->total_nvme_bufs = 0; 3580 3581 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 3582 return 0; 3583 /* 3584 * update on pci function's allocated nvme xri-sgl list 3585 */ 3586 3587 /* maximum number of xris available for nvme buffers */ 3588 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3589 nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3590 phba->sli4_hba.nvme_xri_max = nvme_xri_max; 3591 phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max; 3592 3593 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3594 "6074 Current allocated NVME xri-sgl count:%d, " 3595 "maximum NVME xri count:%d\n", 3596 phba->sli4_hba.nvme_xri_cnt, 3597 phba->sli4_hba.nvme_xri_max); 3598 3599 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3600 spin_lock(&phba->nvme_buf_list_put_lock); 3601 list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list); 3602 list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list); 3603 spin_unlock(&phba->nvme_buf_list_put_lock); 3604 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3605 3606 if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) { 3607 /* max nvme xri shrunk below the allocated nvme buffers */ 3608 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3609 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt - 3610 phba->sli4_hba.nvme_xri_max; 3611 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3612 /* release the extra allocated nvme buffers */ 3613 for (i = 0; i < nvme_xri_cnt; i++) { 3614 list_remove_head(&nvme_sgl_list, lpfc_ncmd, 3615 struct lpfc_nvme_buf, list); 3616 if (lpfc_ncmd) { 3617 pci_pool_free(phba->lpfc_sg_dma_buf_pool, 3618 lpfc_ncmd->data, 3619 lpfc_ncmd->dma_handle); 3620 kfree(lpfc_ncmd); 3621 } 3622 } 3623 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3624 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt; 3625 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3626 } 3627 3628 /* update xris associated to remaining allocated nvme buffers */ 3629 lpfc_ncmd = NULL; 3630 lpfc_ncmd_next = NULL; 3631 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3632 &nvme_sgl_list, list) { 3633 lxri = lpfc_sli4_next_xritag(phba); 3634 if (lxri == NO_XRI) { 3635 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3636 "6075 Failed to allocate xri for " 3637 "nvme buffer\n"); 3638 rc = -ENOMEM; 3639 goto out_free_mem; 3640 } 3641 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri; 3642 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3643 } 3644 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3645 spin_lock(&phba->nvme_buf_list_put_lock); 3646 list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get); 3647 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 3648 spin_unlock(&phba->nvme_buf_list_put_lock); 3649 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3650 return 0; 3651 3652 out_free_mem: 3653 lpfc_nvme_free(phba); 3654 return rc; 3655 } 3656 3657 /** 3658 * lpfc_create_port - Create an FC port 3659 * @phba: pointer to lpfc hba data structure. 3660 * @instance: a unique integer ID to this FC port. 3661 * @dev: pointer to the device data structure. 3662 * 3663 * This routine creates a FC port for the upper layer protocol. The FC port 3664 * can be created on top of either a physical port or a virtual port provided 3665 * by the HBA. This routine also allocates a SCSI host data structure (shost) 3666 * and associates the FC port created before adding the shost into the SCSI 3667 * layer. 3668 * 3669 * Return codes 3670 * @vport - pointer to the virtual N_Port data structure. 3671 * NULL - port create failed. 3672 **/ 3673 struct lpfc_vport * 3674 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 3675 { 3676 struct lpfc_vport *vport; 3677 struct Scsi_Host *shost = NULL; 3678 int error = 0; 3679 3680 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 3681 if (dev != &phba->pcidev->dev) { 3682 shost = scsi_host_alloc(&lpfc_vport_template, 3683 sizeof(struct lpfc_vport)); 3684 } else { 3685 if (phba->sli_rev == LPFC_SLI_REV4) 3686 shost = scsi_host_alloc(&lpfc_template, 3687 sizeof(struct lpfc_vport)); 3688 else 3689 shost = scsi_host_alloc(&lpfc_template_s3, 3690 sizeof(struct lpfc_vport)); 3691 } 3692 } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 3693 shost = scsi_host_alloc(&lpfc_template_nvme, 3694 sizeof(struct lpfc_vport)); 3695 } 3696 if (!shost) 3697 goto out; 3698 3699 vport = (struct lpfc_vport *) shost->hostdata; 3700 vport->phba = phba; 3701 vport->load_flag |= FC_LOADING; 3702 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3703 vport->fc_rscn_flush = 0; 3704 lpfc_get_vport_cfgparam(vport); 3705 3706 shost->unique_id = instance; 3707 shost->max_id = LPFC_MAX_TARGET; 3708 shost->max_lun = vport->cfg_max_luns; 3709 shost->this_id = -1; 3710 shost->max_cmd_len = 16; 3711 shost->nr_hw_queues = phba->cfg_fcp_io_channel; 3712 if (phba->sli_rev == LPFC_SLI_REV4) { 3713 shost->dma_boundary = 3714 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3715 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 3716 } 3717 3718 /* 3719 * Set initial can_queue value since 0 is no longer supported and 3720 * scsi_add_host will fail. This will be adjusted later based on the 3721 * max xri value determined in hba setup. 3722 */ 3723 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3724 if (dev != &phba->pcidev->dev) { 3725 shost->transportt = lpfc_vport_transport_template; 3726 vport->port_type = LPFC_NPIV_PORT; 3727 } else { 3728 shost->transportt = lpfc_transport_template; 3729 vport->port_type = LPFC_PHYSICAL_PORT; 3730 } 3731 3732 /* Initialize all internally managed lists. */ 3733 INIT_LIST_HEAD(&vport->fc_nodes); 3734 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3735 spin_lock_init(&vport->work_port_lock); 3736 3737 init_timer(&vport->fc_disctmo); 3738 vport->fc_disctmo.function = lpfc_disc_timeout; 3739 vport->fc_disctmo.data = (unsigned long)vport; 3740 3741 init_timer(&vport->els_tmofunc); 3742 vport->els_tmofunc.function = lpfc_els_timeout; 3743 vport->els_tmofunc.data = (unsigned long)vport; 3744 3745 init_timer(&vport->delayed_disc_tmo); 3746 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; 3747 vport->delayed_disc_tmo.data = (unsigned long)vport; 3748 3749 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3750 if (error) 3751 goto out_put_shost; 3752 3753 spin_lock_irq(&phba->hbalock); 3754 list_add_tail(&vport->listentry, &phba->port_list); 3755 spin_unlock_irq(&phba->hbalock); 3756 return vport; 3757 3758 out_put_shost: 3759 scsi_host_put(shost); 3760 out: 3761 return NULL; 3762 } 3763 3764 /** 3765 * destroy_port - destroy an FC port 3766 * @vport: pointer to an lpfc virtual N_Port data structure. 3767 * 3768 * This routine destroys a FC port from the upper layer protocol. All the 3769 * resources associated with the port are released. 3770 **/ 3771 void 3772 destroy_port(struct lpfc_vport *vport) 3773 { 3774 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3775 struct lpfc_hba *phba = vport->phba; 3776 3777 lpfc_debugfs_terminate(vport); 3778 fc_remove_host(shost); 3779 scsi_remove_host(shost); 3780 3781 spin_lock_irq(&phba->hbalock); 3782 list_del_init(&vport->listentry); 3783 spin_unlock_irq(&phba->hbalock); 3784 3785 lpfc_cleanup(vport); 3786 return; 3787 } 3788 3789 /** 3790 * lpfc_get_instance - Get a unique integer ID 3791 * 3792 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 3793 * uses the kernel idr facility to perform the task. 3794 * 3795 * Return codes: 3796 * instance - a unique integer ID allocated as the new instance. 3797 * -1 - lpfc get instance failed. 3798 **/ 3799 int 3800 lpfc_get_instance(void) 3801 { 3802 int ret; 3803 3804 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); 3805 return ret < 0 ? -1 : ret; 3806 } 3807 3808 /** 3809 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 3810 * @shost: pointer to SCSI host data structure. 3811 * @time: elapsed time of the scan in jiffies. 3812 * 3813 * This routine is called by the SCSI layer with a SCSI host to determine 3814 * whether the scan host is finished. 3815 * 3816 * Note: there is no scan_start function as adapter initialization will have 3817 * asynchronously kicked off the link initialization. 3818 * 3819 * Return codes 3820 * 0 - SCSI host scan is not over yet. 3821 * 1 - SCSI host scan is over. 3822 **/ 3823 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 3824 { 3825 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3826 struct lpfc_hba *phba = vport->phba; 3827 int stat = 0; 3828 3829 spin_lock_irq(shost->host_lock); 3830 3831 if (vport->load_flag & FC_UNLOADING) { 3832 stat = 1; 3833 goto finished; 3834 } 3835 if (time >= msecs_to_jiffies(30 * 1000)) { 3836 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3837 "0461 Scanning longer than 30 " 3838 "seconds. Continuing initialization\n"); 3839 stat = 1; 3840 goto finished; 3841 } 3842 if (time >= msecs_to_jiffies(15 * 1000) && 3843 phba->link_state <= LPFC_LINK_DOWN) { 3844 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3845 "0465 Link down longer than 15 " 3846 "seconds. Continuing initialization\n"); 3847 stat = 1; 3848 goto finished; 3849 } 3850 3851 if (vport->port_state != LPFC_VPORT_READY) 3852 goto finished; 3853 if (vport->num_disc_nodes || vport->fc_prli_sent) 3854 goto finished; 3855 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000)) 3856 goto finished; 3857 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 3858 goto finished; 3859 3860 stat = 1; 3861 3862 finished: 3863 spin_unlock_irq(shost->host_lock); 3864 return stat; 3865 } 3866 3867 /** 3868 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 3869 * @shost: pointer to SCSI host data structure. 3870 * 3871 * This routine initializes a given SCSI host attributes on a FC port. The 3872 * SCSI host can be either on top of a physical port or a virtual port. 3873 **/ 3874 void lpfc_host_attrib_init(struct Scsi_Host *shost) 3875 { 3876 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3877 struct lpfc_hba *phba = vport->phba; 3878 /* 3879 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 3880 */ 3881 3882 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 3883 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3884 fc_host_supported_classes(shost) = FC_COS_CLASS3; 3885 3886 memset(fc_host_supported_fc4s(shost), 0, 3887 sizeof(fc_host_supported_fc4s(shost))); 3888 fc_host_supported_fc4s(shost)[2] = 1; 3889 fc_host_supported_fc4s(shost)[7] = 1; 3890 3891 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 3892 sizeof fc_host_symbolic_name(shost)); 3893 3894 fc_host_supported_speeds(shost) = 0; 3895 if (phba->lmt & LMT_32Gb) 3896 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT; 3897 if (phba->lmt & LMT_16Gb) 3898 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 3899 if (phba->lmt & LMT_10Gb) 3900 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 3901 if (phba->lmt & LMT_8Gb) 3902 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 3903 if (phba->lmt & LMT_4Gb) 3904 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 3905 if (phba->lmt & LMT_2Gb) 3906 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 3907 if (phba->lmt & LMT_1Gb) 3908 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 3909 3910 fc_host_maxframe_size(shost) = 3911 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 3912 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 3913 3914 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 3915 3916 /* This value is also unchanging */ 3917 memset(fc_host_active_fc4s(shost), 0, 3918 sizeof(fc_host_active_fc4s(shost))); 3919 fc_host_active_fc4s(shost)[2] = 1; 3920 fc_host_active_fc4s(shost)[7] = 1; 3921 3922 fc_host_max_npiv_vports(shost) = phba->max_vpi; 3923 spin_lock_irq(shost->host_lock); 3924 vport->load_flag &= ~FC_LOADING; 3925 spin_unlock_irq(shost->host_lock); 3926 } 3927 3928 /** 3929 * lpfc_stop_port_s3 - Stop SLI3 device port 3930 * @phba: pointer to lpfc hba data structure. 3931 * 3932 * This routine is invoked to stop an SLI3 device port, it stops the device 3933 * from generating interrupts and stops the device driver's timers for the 3934 * device. 3935 **/ 3936 static void 3937 lpfc_stop_port_s3(struct lpfc_hba *phba) 3938 { 3939 /* Clear all interrupt enable conditions */ 3940 writel(0, phba->HCregaddr); 3941 readl(phba->HCregaddr); /* flush */ 3942 /* Clear all pending interrupts */ 3943 writel(0xffffffff, phba->HAregaddr); 3944 readl(phba->HAregaddr); /* flush */ 3945 3946 /* Reset some HBA SLI setup states */ 3947 lpfc_stop_hba_timers(phba); 3948 phba->pport->work_port_events = 0; 3949 } 3950 3951 /** 3952 * lpfc_stop_port_s4 - Stop SLI4 device port 3953 * @phba: pointer to lpfc hba data structure. 3954 * 3955 * This routine is invoked to stop an SLI4 device port, it stops the device 3956 * from generating interrupts and stops the device driver's timers for the 3957 * device. 3958 **/ 3959 static void 3960 lpfc_stop_port_s4(struct lpfc_hba *phba) 3961 { 3962 /* Reset some HBA SLI4 setup states */ 3963 lpfc_stop_hba_timers(phba); 3964 phba->pport->work_port_events = 0; 3965 phba->sli4_hba.intr_enable = 0; 3966 } 3967 3968 /** 3969 * lpfc_stop_port - Wrapper function for stopping hba port 3970 * @phba: Pointer to HBA context object. 3971 * 3972 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 3973 * the API jump table function pointer from the lpfc_hba struct. 3974 **/ 3975 void 3976 lpfc_stop_port(struct lpfc_hba *phba) 3977 { 3978 phba->lpfc_stop_port(phba); 3979 } 3980 3981 /** 3982 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 3983 * @phba: Pointer to hba for which this call is being executed. 3984 * 3985 * This routine starts the timer waiting for the FCF rediscovery to complete. 3986 **/ 3987 void 3988 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 3989 { 3990 unsigned long fcf_redisc_wait_tmo = 3991 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 3992 /* Start fcf rediscovery wait period timer */ 3993 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 3994 spin_lock_irq(&phba->hbalock); 3995 /* Allow action to new fcf asynchronous event */ 3996 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 3997 /* Mark the FCF rediscovery pending state */ 3998 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 3999 spin_unlock_irq(&phba->hbalock); 4000 } 4001 4002 /** 4003 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 4004 * @ptr: Map to lpfc_hba data structure pointer. 4005 * 4006 * This routine is invoked when waiting for FCF table rediscover has been 4007 * timed out. If new FCF record(s) has (have) been discovered during the 4008 * wait period, a new FCF event shall be added to the FCOE async event 4009 * list, and then worker thread shall be waked up for processing from the 4010 * worker thread context. 4011 **/ 4012 static void 4013 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 4014 { 4015 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 4016 4017 /* Don't send FCF rediscovery event if timer cancelled */ 4018 spin_lock_irq(&phba->hbalock); 4019 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 4020 spin_unlock_irq(&phba->hbalock); 4021 return; 4022 } 4023 /* Clear FCF rediscovery timer pending flag */ 4024 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 4025 /* FCF rediscovery event to worker thread */ 4026 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 4027 spin_unlock_irq(&phba->hbalock); 4028 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 4029 "2776 FCF rediscover quiescent timer expired\n"); 4030 /* wake up worker thread */ 4031 lpfc_worker_wake_up(phba); 4032 } 4033 4034 /** 4035 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 4036 * @phba: pointer to lpfc hba data structure. 4037 * @acqe_link: pointer to the async link completion queue entry. 4038 * 4039 * This routine is to parse the SLI4 link-attention link fault code and 4040 * translate it into the base driver's read link attention mailbox command 4041 * status. 4042 * 4043 * Return: Link-attention status in terms of base driver's coding. 4044 **/ 4045 static uint16_t 4046 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 4047 struct lpfc_acqe_link *acqe_link) 4048 { 4049 uint16_t latt_fault; 4050 4051 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 4052 case LPFC_ASYNC_LINK_FAULT_NONE: 4053 case LPFC_ASYNC_LINK_FAULT_LOCAL: 4054 case LPFC_ASYNC_LINK_FAULT_REMOTE: 4055 latt_fault = 0; 4056 break; 4057 default: 4058 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4059 "0398 Invalid link fault code: x%x\n", 4060 bf_get(lpfc_acqe_link_fault, acqe_link)); 4061 latt_fault = MBXERR_ERROR; 4062 break; 4063 } 4064 return latt_fault; 4065 } 4066 4067 /** 4068 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 4069 * @phba: pointer to lpfc hba data structure. 4070 * @acqe_link: pointer to the async link completion queue entry. 4071 * 4072 * This routine is to parse the SLI4 link attention type and translate it 4073 * into the base driver's link attention type coding. 4074 * 4075 * Return: Link attention type in terms of base driver's coding. 4076 **/ 4077 static uint8_t 4078 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 4079 struct lpfc_acqe_link *acqe_link) 4080 { 4081 uint8_t att_type; 4082 4083 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 4084 case LPFC_ASYNC_LINK_STATUS_DOWN: 4085 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 4086 att_type = LPFC_ATT_LINK_DOWN; 4087 break; 4088 case LPFC_ASYNC_LINK_STATUS_UP: 4089 /* Ignore physical link up events - wait for logical link up */ 4090 att_type = LPFC_ATT_RESERVED; 4091 break; 4092 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 4093 att_type = LPFC_ATT_LINK_UP; 4094 break; 4095 default: 4096 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4097 "0399 Invalid link attention type: x%x\n", 4098 bf_get(lpfc_acqe_link_status, acqe_link)); 4099 att_type = LPFC_ATT_RESERVED; 4100 break; 4101 } 4102 return att_type; 4103 } 4104 4105 /** 4106 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 4107 * @phba: pointer to lpfc hba data structure. 4108 * 4109 * This routine is to get an SLI3 FC port's link speed in Mbps. 4110 * 4111 * Return: link speed in terms of Mbps. 4112 **/ 4113 uint32_t 4114 lpfc_sli_port_speed_get(struct lpfc_hba *phba) 4115 { 4116 uint32_t link_speed; 4117 4118 if (!lpfc_is_link_up(phba)) 4119 return 0; 4120 4121 if (phba->sli_rev <= LPFC_SLI_REV3) { 4122 switch (phba->fc_linkspeed) { 4123 case LPFC_LINK_SPEED_1GHZ: 4124 link_speed = 1000; 4125 break; 4126 case LPFC_LINK_SPEED_2GHZ: 4127 link_speed = 2000; 4128 break; 4129 case LPFC_LINK_SPEED_4GHZ: 4130 link_speed = 4000; 4131 break; 4132 case LPFC_LINK_SPEED_8GHZ: 4133 link_speed = 8000; 4134 break; 4135 case LPFC_LINK_SPEED_10GHZ: 4136 link_speed = 10000; 4137 break; 4138 case LPFC_LINK_SPEED_16GHZ: 4139 link_speed = 16000; 4140 break; 4141 default: 4142 link_speed = 0; 4143 } 4144 } else { 4145 if (phba->sli4_hba.link_state.logical_speed) 4146 link_speed = 4147 phba->sli4_hba.link_state.logical_speed; 4148 else 4149 link_speed = phba->sli4_hba.link_state.speed; 4150 } 4151 return link_speed; 4152 } 4153 4154 /** 4155 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 4156 * @phba: pointer to lpfc hba data structure. 4157 * @evt_code: asynchronous event code. 4158 * @speed_code: asynchronous event link speed code. 4159 * 4160 * This routine is to parse the giving SLI4 async event link speed code into 4161 * value of Mbps for the link speed. 4162 * 4163 * Return: link speed in terms of Mbps. 4164 **/ 4165 static uint32_t 4166 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 4167 uint8_t speed_code) 4168 { 4169 uint32_t port_speed; 4170 4171 switch (evt_code) { 4172 case LPFC_TRAILER_CODE_LINK: 4173 switch (speed_code) { 4174 case LPFC_ASYNC_LINK_SPEED_ZERO: 4175 port_speed = 0; 4176 break; 4177 case LPFC_ASYNC_LINK_SPEED_10MBPS: 4178 port_speed = 10; 4179 break; 4180 case LPFC_ASYNC_LINK_SPEED_100MBPS: 4181 port_speed = 100; 4182 break; 4183 case LPFC_ASYNC_LINK_SPEED_1GBPS: 4184 port_speed = 1000; 4185 break; 4186 case LPFC_ASYNC_LINK_SPEED_10GBPS: 4187 port_speed = 10000; 4188 break; 4189 case LPFC_ASYNC_LINK_SPEED_20GBPS: 4190 port_speed = 20000; 4191 break; 4192 case LPFC_ASYNC_LINK_SPEED_25GBPS: 4193 port_speed = 25000; 4194 break; 4195 case LPFC_ASYNC_LINK_SPEED_40GBPS: 4196 port_speed = 40000; 4197 break; 4198 default: 4199 port_speed = 0; 4200 } 4201 break; 4202 case LPFC_TRAILER_CODE_FC: 4203 switch (speed_code) { 4204 case LPFC_FC_LA_SPEED_UNKNOWN: 4205 port_speed = 0; 4206 break; 4207 case LPFC_FC_LA_SPEED_1G: 4208 port_speed = 1000; 4209 break; 4210 case LPFC_FC_LA_SPEED_2G: 4211 port_speed = 2000; 4212 break; 4213 case LPFC_FC_LA_SPEED_4G: 4214 port_speed = 4000; 4215 break; 4216 case LPFC_FC_LA_SPEED_8G: 4217 port_speed = 8000; 4218 break; 4219 case LPFC_FC_LA_SPEED_10G: 4220 port_speed = 10000; 4221 break; 4222 case LPFC_FC_LA_SPEED_16G: 4223 port_speed = 16000; 4224 break; 4225 case LPFC_FC_LA_SPEED_32G: 4226 port_speed = 32000; 4227 break; 4228 default: 4229 port_speed = 0; 4230 } 4231 break; 4232 default: 4233 port_speed = 0; 4234 } 4235 return port_speed; 4236 } 4237 4238 /** 4239 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 4240 * @phba: pointer to lpfc hba data structure. 4241 * @acqe_link: pointer to the async link completion queue entry. 4242 * 4243 * This routine is to handle the SLI4 asynchronous FCoE link event. 4244 **/ 4245 static void 4246 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 4247 struct lpfc_acqe_link *acqe_link) 4248 { 4249 struct lpfc_dmabuf *mp; 4250 LPFC_MBOXQ_t *pmb; 4251 MAILBOX_t *mb; 4252 struct lpfc_mbx_read_top *la; 4253 uint8_t att_type; 4254 int rc; 4255 4256 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 4257 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 4258 return; 4259 phba->fcoe_eventtag = acqe_link->event_tag; 4260 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4261 if (!pmb) { 4262 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4263 "0395 The mboxq allocation failed\n"); 4264 return; 4265 } 4266 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4267 if (!mp) { 4268 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4269 "0396 The lpfc_dmabuf allocation failed\n"); 4270 goto out_free_pmb; 4271 } 4272 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4273 if (!mp->virt) { 4274 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4275 "0397 The mbuf allocation failed\n"); 4276 goto out_free_dmabuf; 4277 } 4278 4279 /* Cleanup any outstanding ELS commands */ 4280 lpfc_els_flush_all_cmd(phba); 4281 4282 /* Block ELS IOCBs until we have done process link event */ 4283 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4284 4285 /* Update link event statistics */ 4286 phba->sli.slistat.link_event++; 4287 4288 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4289 lpfc_read_topology(phba, pmb, mp); 4290 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4291 pmb->vport = phba->pport; 4292 4293 /* Keep the link status for extra SLI4 state machine reference */ 4294 phba->sli4_hba.link_state.speed = 4295 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 4296 bf_get(lpfc_acqe_link_speed, acqe_link)); 4297 phba->sli4_hba.link_state.duplex = 4298 bf_get(lpfc_acqe_link_duplex, acqe_link); 4299 phba->sli4_hba.link_state.status = 4300 bf_get(lpfc_acqe_link_status, acqe_link); 4301 phba->sli4_hba.link_state.type = 4302 bf_get(lpfc_acqe_link_type, acqe_link); 4303 phba->sli4_hba.link_state.number = 4304 bf_get(lpfc_acqe_link_number, acqe_link); 4305 phba->sli4_hba.link_state.fault = 4306 bf_get(lpfc_acqe_link_fault, acqe_link); 4307 phba->sli4_hba.link_state.logical_speed = 4308 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 4309 4310 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4311 "2900 Async FC/FCoE Link event - Speed:%dGBit " 4312 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 4313 "Logical speed:%dMbps Fault:%d\n", 4314 phba->sli4_hba.link_state.speed, 4315 phba->sli4_hba.link_state.topology, 4316 phba->sli4_hba.link_state.status, 4317 phba->sli4_hba.link_state.type, 4318 phba->sli4_hba.link_state.number, 4319 phba->sli4_hba.link_state.logical_speed, 4320 phba->sli4_hba.link_state.fault); 4321 /* 4322 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 4323 * topology info. Note: Optional for non FC-AL ports. 4324 */ 4325 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 4326 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4327 if (rc == MBX_NOT_FINISHED) 4328 goto out_free_dmabuf; 4329 return; 4330 } 4331 /* 4332 * For FCoE Mode: fill in all the topology information we need and call 4333 * the READ_TOPOLOGY completion routine to continue without actually 4334 * sending the READ_TOPOLOGY mailbox command to the port. 4335 */ 4336 /* Parse and translate status field */ 4337 mb = &pmb->u.mb; 4338 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 4339 4340 /* Parse and translate link attention fields */ 4341 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 4342 la->eventTag = acqe_link->event_tag; 4343 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 4344 bf_set(lpfc_mbx_read_top_link_spd, la, 4345 (bf_get(lpfc_acqe_link_speed, acqe_link))); 4346 4347 /* Fake the the following irrelvant fields */ 4348 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 4349 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 4350 bf_set(lpfc_mbx_read_top_il, la, 0); 4351 bf_set(lpfc_mbx_read_top_pb, la, 0); 4352 bf_set(lpfc_mbx_read_top_fa, la, 0); 4353 bf_set(lpfc_mbx_read_top_mm, la, 0); 4354 4355 /* Invoke the lpfc_handle_latt mailbox command callback function */ 4356 lpfc_mbx_cmpl_read_topology(phba, pmb); 4357 4358 return; 4359 4360 out_free_dmabuf: 4361 kfree(mp); 4362 out_free_pmb: 4363 mempool_free(pmb, phba->mbox_mem_pool); 4364 } 4365 4366 /** 4367 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 4368 * @phba: pointer to lpfc hba data structure. 4369 * @acqe_fc: pointer to the async fc completion queue entry. 4370 * 4371 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 4372 * that the event was received and then issue a read_topology mailbox command so 4373 * that the rest of the driver will treat it the same as SLI3. 4374 **/ 4375 static void 4376 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 4377 { 4378 struct lpfc_dmabuf *mp; 4379 LPFC_MBOXQ_t *pmb; 4380 MAILBOX_t *mb; 4381 struct lpfc_mbx_read_top *la; 4382 int rc; 4383 4384 if (bf_get(lpfc_trailer_type, acqe_fc) != 4385 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 4386 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4387 "2895 Non FC link Event detected.(%d)\n", 4388 bf_get(lpfc_trailer_type, acqe_fc)); 4389 return; 4390 } 4391 /* Keep the link status for extra SLI4 state machine reference */ 4392 phba->sli4_hba.link_state.speed = 4393 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 4394 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 4395 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 4396 phba->sli4_hba.link_state.topology = 4397 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 4398 phba->sli4_hba.link_state.status = 4399 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 4400 phba->sli4_hba.link_state.type = 4401 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 4402 phba->sli4_hba.link_state.number = 4403 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 4404 phba->sli4_hba.link_state.fault = 4405 bf_get(lpfc_acqe_link_fault, acqe_fc); 4406 phba->sli4_hba.link_state.logical_speed = 4407 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 4408 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4409 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 4410 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 4411 "%dMbps Fault:%d\n", 4412 phba->sli4_hba.link_state.speed, 4413 phba->sli4_hba.link_state.topology, 4414 phba->sli4_hba.link_state.status, 4415 phba->sli4_hba.link_state.type, 4416 phba->sli4_hba.link_state.number, 4417 phba->sli4_hba.link_state.logical_speed, 4418 phba->sli4_hba.link_state.fault); 4419 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4420 if (!pmb) { 4421 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4422 "2897 The mboxq allocation failed\n"); 4423 return; 4424 } 4425 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4426 if (!mp) { 4427 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4428 "2898 The lpfc_dmabuf allocation failed\n"); 4429 goto out_free_pmb; 4430 } 4431 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4432 if (!mp->virt) { 4433 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4434 "2899 The mbuf allocation failed\n"); 4435 goto out_free_dmabuf; 4436 } 4437 4438 /* Cleanup any outstanding ELS commands */ 4439 lpfc_els_flush_all_cmd(phba); 4440 4441 /* Block ELS IOCBs until we have done process link event */ 4442 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4443 4444 /* Update link event statistics */ 4445 phba->sli.slistat.link_event++; 4446 4447 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4448 lpfc_read_topology(phba, pmb, mp); 4449 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4450 pmb->vport = phba->pport; 4451 4452 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) { 4453 /* Parse and translate status field */ 4454 mb = &pmb->u.mb; 4455 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, 4456 (void *)acqe_fc); 4457 4458 /* Parse and translate link attention fields */ 4459 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop; 4460 la->eventTag = acqe_fc->event_tag; 4461 bf_set(lpfc_mbx_read_top_att_type, la, 4462 LPFC_FC_LA_TYPE_LINK_DOWN); 4463 4464 /* Invoke the mailbox command callback function */ 4465 lpfc_mbx_cmpl_read_topology(phba, pmb); 4466 4467 return; 4468 } 4469 4470 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4471 if (rc == MBX_NOT_FINISHED) 4472 goto out_free_dmabuf; 4473 return; 4474 4475 out_free_dmabuf: 4476 kfree(mp); 4477 out_free_pmb: 4478 mempool_free(pmb, phba->mbox_mem_pool); 4479 } 4480 4481 /** 4482 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 4483 * @phba: pointer to lpfc hba data structure. 4484 * @acqe_fc: pointer to the async SLI completion queue entry. 4485 * 4486 * This routine is to handle the SLI4 asynchronous SLI events. 4487 **/ 4488 static void 4489 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 4490 { 4491 char port_name; 4492 char message[128]; 4493 uint8_t status; 4494 uint8_t evt_type; 4495 uint8_t operational = 0; 4496 struct temp_event temp_event_data; 4497 struct lpfc_acqe_misconfigured_event *misconfigured; 4498 struct Scsi_Host *shost; 4499 4500 evt_type = bf_get(lpfc_trailer_type, acqe_sli); 4501 4502 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4503 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 4504 "x%08x SLI Event Type:%d\n", 4505 acqe_sli->event_data1, acqe_sli->event_data2, 4506 evt_type); 4507 4508 port_name = phba->Port[0]; 4509 if (port_name == 0x00) 4510 port_name = '?'; /* get port name is empty */ 4511 4512 switch (evt_type) { 4513 case LPFC_SLI_EVENT_TYPE_OVER_TEMP: 4514 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4515 temp_event_data.event_code = LPFC_THRESHOLD_TEMP; 4516 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4517 4518 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 4519 "3190 Over Temperature:%d Celsius- Port Name %c\n", 4520 acqe_sli->event_data1, port_name); 4521 4522 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 4523 shost = lpfc_shost_from_vport(phba->pport); 4524 fc_host_post_vendor_event(shost, fc_get_event_number(), 4525 sizeof(temp_event_data), 4526 (char *)&temp_event_data, 4527 SCSI_NL_VID_TYPE_PCI 4528 | PCI_VENDOR_ID_EMULEX); 4529 break; 4530 case LPFC_SLI_EVENT_TYPE_NORM_TEMP: 4531 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4532 temp_event_data.event_code = LPFC_NORMAL_TEMP; 4533 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4534 4535 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4536 "3191 Normal Temperature:%d Celsius - Port Name %c\n", 4537 acqe_sli->event_data1, port_name); 4538 4539 shost = lpfc_shost_from_vport(phba->pport); 4540 fc_host_post_vendor_event(shost, fc_get_event_number(), 4541 sizeof(temp_event_data), 4542 (char *)&temp_event_data, 4543 SCSI_NL_VID_TYPE_PCI 4544 | PCI_VENDOR_ID_EMULEX); 4545 break; 4546 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED: 4547 misconfigured = (struct lpfc_acqe_misconfigured_event *) 4548 &acqe_sli->event_data1; 4549 4550 /* fetch the status for this port */ 4551 switch (phba->sli4_hba.lnk_info.lnk_no) { 4552 case LPFC_LINK_NUMBER_0: 4553 status = bf_get(lpfc_sli_misconfigured_port0_state, 4554 &misconfigured->theEvent); 4555 operational = bf_get(lpfc_sli_misconfigured_port0_op, 4556 &misconfigured->theEvent); 4557 break; 4558 case LPFC_LINK_NUMBER_1: 4559 status = bf_get(lpfc_sli_misconfigured_port1_state, 4560 &misconfigured->theEvent); 4561 operational = bf_get(lpfc_sli_misconfigured_port1_op, 4562 &misconfigured->theEvent); 4563 break; 4564 case LPFC_LINK_NUMBER_2: 4565 status = bf_get(lpfc_sli_misconfigured_port2_state, 4566 &misconfigured->theEvent); 4567 operational = bf_get(lpfc_sli_misconfigured_port2_op, 4568 &misconfigured->theEvent); 4569 break; 4570 case LPFC_LINK_NUMBER_3: 4571 status = bf_get(lpfc_sli_misconfigured_port3_state, 4572 &misconfigured->theEvent); 4573 operational = bf_get(lpfc_sli_misconfigured_port3_op, 4574 &misconfigured->theEvent); 4575 break; 4576 default: 4577 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4578 "3296 " 4579 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED " 4580 "event: Invalid link %d", 4581 phba->sli4_hba.lnk_info.lnk_no); 4582 return; 4583 } 4584 4585 /* Skip if optic state unchanged */ 4586 if (phba->sli4_hba.lnk_info.optic_state == status) 4587 return; 4588 4589 switch (status) { 4590 case LPFC_SLI_EVENT_STATUS_VALID: 4591 sprintf(message, "Physical Link is functional"); 4592 break; 4593 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 4594 sprintf(message, "Optics faulted/incorrectly " 4595 "installed/not installed - Reseat optics, " 4596 "if issue not resolved, replace."); 4597 break; 4598 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 4599 sprintf(message, 4600 "Optics of two types installed - Remove one " 4601 "optic or install matching pair of optics."); 4602 break; 4603 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 4604 sprintf(message, "Incompatible optics - Replace with " 4605 "compatible optics for card to function."); 4606 break; 4607 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED: 4608 sprintf(message, "Unqualified optics - Replace with " 4609 "Avago optics for Warranty and Technical " 4610 "Support - Link is%s operational", 4611 (operational) ? " not" : ""); 4612 break; 4613 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED: 4614 sprintf(message, "Uncertified optics - Replace with " 4615 "Avago-certified optics to enable link " 4616 "operation - Link is%s operational", 4617 (operational) ? " not" : ""); 4618 break; 4619 default: 4620 /* firmware is reporting a status we don't know about */ 4621 sprintf(message, "Unknown event status x%02x", status); 4622 break; 4623 } 4624 phba->sli4_hba.lnk_info.optic_state = status; 4625 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4626 "3176 Port Name %c %s\n", port_name, message); 4627 break; 4628 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT: 4629 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4630 "3192 Remote DPort Test Initiated - " 4631 "Event Data1:x%08x Event Data2: x%08x\n", 4632 acqe_sli->event_data1, acqe_sli->event_data2); 4633 break; 4634 default: 4635 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4636 "3193 Async SLI event - Event Data1:x%08x Event Data2:" 4637 "x%08x SLI Event Type:%d\n", 4638 acqe_sli->event_data1, acqe_sli->event_data2, 4639 evt_type); 4640 break; 4641 } 4642 } 4643 4644 /** 4645 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 4646 * @vport: pointer to vport data structure. 4647 * 4648 * This routine is to perform Clear Virtual Link (CVL) on a vport in 4649 * response to a CVL event. 4650 * 4651 * Return the pointer to the ndlp with the vport if successful, otherwise 4652 * return NULL. 4653 **/ 4654 static struct lpfc_nodelist * 4655 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 4656 { 4657 struct lpfc_nodelist *ndlp; 4658 struct Scsi_Host *shost; 4659 struct lpfc_hba *phba; 4660 4661 if (!vport) 4662 return NULL; 4663 phba = vport->phba; 4664 if (!phba) 4665 return NULL; 4666 ndlp = lpfc_findnode_did(vport, Fabric_DID); 4667 if (!ndlp) { 4668 /* Cannot find existing Fabric ndlp, so allocate a new one */ 4669 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 4670 if (!ndlp) 4671 return 0; 4672 lpfc_nlp_init(vport, ndlp, Fabric_DID); 4673 /* Set the node type */ 4674 ndlp->nlp_type |= NLP_FABRIC; 4675 /* Put ndlp onto node list */ 4676 lpfc_enqueue_node(vport, ndlp); 4677 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4678 /* re-setup ndlp without removing from node list */ 4679 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 4680 if (!ndlp) 4681 return 0; 4682 } 4683 if ((phba->pport->port_state < LPFC_FLOGI) && 4684 (phba->pport->port_state != LPFC_VPORT_FAILED)) 4685 return NULL; 4686 /* If virtual link is not yet instantiated ignore CVL */ 4687 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 4688 && (vport->port_state != LPFC_VPORT_FAILED)) 4689 return NULL; 4690 shost = lpfc_shost_from_vport(vport); 4691 if (!shost) 4692 return NULL; 4693 lpfc_linkdown_port(vport); 4694 lpfc_cleanup_pending_mbox(vport); 4695 spin_lock_irq(shost->host_lock); 4696 vport->fc_flag |= FC_VPORT_CVL_RCVD; 4697 spin_unlock_irq(shost->host_lock); 4698 4699 return ndlp; 4700 } 4701 4702 /** 4703 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 4704 * @vport: pointer to lpfc hba data structure. 4705 * 4706 * This routine is to perform Clear Virtual Link (CVL) on all vports in 4707 * response to a FCF dead event. 4708 **/ 4709 static void 4710 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 4711 { 4712 struct lpfc_vport **vports; 4713 int i; 4714 4715 vports = lpfc_create_vport_work_array(phba); 4716 if (vports) 4717 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 4718 lpfc_sli4_perform_vport_cvl(vports[i]); 4719 lpfc_destroy_vport_work_array(phba, vports); 4720 } 4721 4722 /** 4723 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 4724 * @phba: pointer to lpfc hba data structure. 4725 * @acqe_link: pointer to the async fcoe completion queue entry. 4726 * 4727 * This routine is to handle the SLI4 asynchronous fcoe event. 4728 **/ 4729 static void 4730 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 4731 struct lpfc_acqe_fip *acqe_fip) 4732 { 4733 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 4734 int rc; 4735 struct lpfc_vport *vport; 4736 struct lpfc_nodelist *ndlp; 4737 struct Scsi_Host *shost; 4738 int active_vlink_present; 4739 struct lpfc_vport **vports; 4740 int i; 4741 4742 phba->fc_eventTag = acqe_fip->event_tag; 4743 phba->fcoe_eventtag = acqe_fip->event_tag; 4744 switch (event_type) { 4745 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 4746 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 4747 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 4748 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4749 LOG_DISCOVERY, 4750 "2546 New FCF event, evt_tag:x%x, " 4751 "index:x%x\n", 4752 acqe_fip->event_tag, 4753 acqe_fip->index); 4754 else 4755 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 4756 LOG_DISCOVERY, 4757 "2788 FCF param modified event, " 4758 "evt_tag:x%x, index:x%x\n", 4759 acqe_fip->event_tag, 4760 acqe_fip->index); 4761 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4762 /* 4763 * During period of FCF discovery, read the FCF 4764 * table record indexed by the event to update 4765 * FCF roundrobin failover eligible FCF bmask. 4766 */ 4767 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4768 LOG_DISCOVERY, 4769 "2779 Read FCF (x%x) for updating " 4770 "roundrobin FCF failover bmask\n", 4771 acqe_fip->index); 4772 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 4773 } 4774 4775 /* If the FCF discovery is in progress, do nothing. */ 4776 spin_lock_irq(&phba->hbalock); 4777 if (phba->hba_flag & FCF_TS_INPROG) { 4778 spin_unlock_irq(&phba->hbalock); 4779 break; 4780 } 4781 /* If fast FCF failover rescan event is pending, do nothing */ 4782 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 4783 spin_unlock_irq(&phba->hbalock); 4784 break; 4785 } 4786 4787 /* If the FCF has been in discovered state, do nothing. */ 4788 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 4789 spin_unlock_irq(&phba->hbalock); 4790 break; 4791 } 4792 spin_unlock_irq(&phba->hbalock); 4793 4794 /* Otherwise, scan the entire FCF table and re-discover SAN */ 4795 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4796 "2770 Start FCF table scan per async FCF " 4797 "event, evt_tag:x%x, index:x%x\n", 4798 acqe_fip->event_tag, acqe_fip->index); 4799 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 4800 LPFC_FCOE_FCF_GET_FIRST); 4801 if (rc) 4802 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4803 "2547 Issue FCF scan read FCF mailbox " 4804 "command failed (x%x)\n", rc); 4805 break; 4806 4807 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 4808 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4809 "2548 FCF Table full count 0x%x tag 0x%x\n", 4810 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 4811 acqe_fip->event_tag); 4812 break; 4813 4814 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 4815 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4816 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4817 "2549 FCF (x%x) disconnected from network, " 4818 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 4819 /* 4820 * If we are in the middle of FCF failover process, clear 4821 * the corresponding FCF bit in the roundrobin bitmap. 4822 */ 4823 spin_lock_irq(&phba->hbalock); 4824 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && 4825 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) { 4826 spin_unlock_irq(&phba->hbalock); 4827 /* Update FLOGI FCF failover eligible FCF bmask */ 4828 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 4829 break; 4830 } 4831 spin_unlock_irq(&phba->hbalock); 4832 4833 /* If the event is not for currently used fcf do nothing */ 4834 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 4835 break; 4836 4837 /* 4838 * Otherwise, request the port to rediscover the entire FCF 4839 * table for a fast recovery from case that the current FCF 4840 * is no longer valid as we are not in the middle of FCF 4841 * failover process already. 4842 */ 4843 spin_lock_irq(&phba->hbalock); 4844 /* Mark the fast failover process in progress */ 4845 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 4846 spin_unlock_irq(&phba->hbalock); 4847 4848 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4849 "2771 Start FCF fast failover process due to " 4850 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 4851 "\n", acqe_fip->event_tag, acqe_fip->index); 4852 rc = lpfc_sli4_redisc_fcf_table(phba); 4853 if (rc) { 4854 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4855 LOG_DISCOVERY, 4856 "2772 Issue FCF rediscover mabilbox " 4857 "command failed, fail through to FCF " 4858 "dead event\n"); 4859 spin_lock_irq(&phba->hbalock); 4860 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 4861 spin_unlock_irq(&phba->hbalock); 4862 /* 4863 * Last resort will fail over by treating this 4864 * as a link down to FCF registration. 4865 */ 4866 lpfc_sli4_fcf_dead_failthrough(phba); 4867 } else { 4868 /* Reset FCF roundrobin bmask for new discovery */ 4869 lpfc_sli4_clear_fcf_rr_bmask(phba); 4870 /* 4871 * Handling fast FCF failover to a DEAD FCF event is 4872 * considered equalivant to receiving CVL to all vports. 4873 */ 4874 lpfc_sli4_perform_all_vport_cvl(phba); 4875 } 4876 break; 4877 case LPFC_FIP_EVENT_TYPE_CVL: 4878 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4879 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4880 "2718 Clear Virtual Link Received for VPI 0x%x" 4881 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 4882 4883 vport = lpfc_find_vport_by_vpid(phba, 4884 acqe_fip->index); 4885 ndlp = lpfc_sli4_perform_vport_cvl(vport); 4886 if (!ndlp) 4887 break; 4888 active_vlink_present = 0; 4889 4890 vports = lpfc_create_vport_work_array(phba); 4891 if (vports) { 4892 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 4893 i++) { 4894 if ((!(vports[i]->fc_flag & 4895 FC_VPORT_CVL_RCVD)) && 4896 (vports[i]->port_state > LPFC_FDISC)) { 4897 active_vlink_present = 1; 4898 break; 4899 } 4900 } 4901 lpfc_destroy_vport_work_array(phba, vports); 4902 } 4903 4904 /* 4905 * Don't re-instantiate if vport is marked for deletion. 4906 * If we are here first then vport_delete is going to wait 4907 * for discovery to complete. 4908 */ 4909 if (!(vport->load_flag & FC_UNLOADING) && 4910 active_vlink_present) { 4911 /* 4912 * If there are other active VLinks present, 4913 * re-instantiate the Vlink using FDISC. 4914 */ 4915 mod_timer(&ndlp->nlp_delayfunc, 4916 jiffies + msecs_to_jiffies(1000)); 4917 shost = lpfc_shost_from_vport(vport); 4918 spin_lock_irq(shost->host_lock); 4919 ndlp->nlp_flag |= NLP_DELAY_TMO; 4920 spin_unlock_irq(shost->host_lock); 4921 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 4922 vport->port_state = LPFC_FDISC; 4923 } else { 4924 /* 4925 * Otherwise, we request port to rediscover 4926 * the entire FCF table for a fast recovery 4927 * from possible case that the current FCF 4928 * is no longer valid if we are not already 4929 * in the FCF failover process. 4930 */ 4931 spin_lock_irq(&phba->hbalock); 4932 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4933 spin_unlock_irq(&phba->hbalock); 4934 break; 4935 } 4936 /* Mark the fast failover process in progress */ 4937 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 4938 spin_unlock_irq(&phba->hbalock); 4939 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4940 LOG_DISCOVERY, 4941 "2773 Start FCF failover per CVL, " 4942 "evt_tag:x%x\n", acqe_fip->event_tag); 4943 rc = lpfc_sli4_redisc_fcf_table(phba); 4944 if (rc) { 4945 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4946 LOG_DISCOVERY, 4947 "2774 Issue FCF rediscover " 4948 "mabilbox command failed, " 4949 "through to CVL event\n"); 4950 spin_lock_irq(&phba->hbalock); 4951 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 4952 spin_unlock_irq(&phba->hbalock); 4953 /* 4954 * Last resort will be re-try on the 4955 * the current registered FCF entry. 4956 */ 4957 lpfc_retry_pport_discovery(phba); 4958 } else 4959 /* 4960 * Reset FCF roundrobin bmask for new 4961 * discovery. 4962 */ 4963 lpfc_sli4_clear_fcf_rr_bmask(phba); 4964 } 4965 break; 4966 default: 4967 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4968 "0288 Unknown FCoE event type 0x%x event tag " 4969 "0x%x\n", event_type, acqe_fip->event_tag); 4970 break; 4971 } 4972 } 4973 4974 /** 4975 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 4976 * @phba: pointer to lpfc hba data structure. 4977 * @acqe_link: pointer to the async dcbx completion queue entry. 4978 * 4979 * This routine is to handle the SLI4 asynchronous dcbx event. 4980 **/ 4981 static void 4982 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 4983 struct lpfc_acqe_dcbx *acqe_dcbx) 4984 { 4985 phba->fc_eventTag = acqe_dcbx->event_tag; 4986 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4987 "0290 The SLI4 DCBX asynchronous event is not " 4988 "handled yet\n"); 4989 } 4990 4991 /** 4992 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 4993 * @phba: pointer to lpfc hba data structure. 4994 * @acqe_link: pointer to the async grp5 completion queue entry. 4995 * 4996 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 4997 * is an asynchronous notified of a logical link speed change. The Port 4998 * reports the logical link speed in units of 10Mbps. 4999 **/ 5000 static void 5001 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 5002 struct lpfc_acqe_grp5 *acqe_grp5) 5003 { 5004 uint16_t prev_ll_spd; 5005 5006 phba->fc_eventTag = acqe_grp5->event_tag; 5007 phba->fcoe_eventtag = acqe_grp5->event_tag; 5008 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 5009 phba->sli4_hba.link_state.logical_speed = 5010 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 5011 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5012 "2789 GRP5 Async Event: Updating logical link speed " 5013 "from %dMbps to %dMbps\n", prev_ll_spd, 5014 phba->sli4_hba.link_state.logical_speed); 5015 } 5016 5017 /** 5018 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 5019 * @phba: pointer to lpfc hba data structure. 5020 * 5021 * This routine is invoked by the worker thread to process all the pending 5022 * SLI4 asynchronous events. 5023 **/ 5024 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 5025 { 5026 struct lpfc_cq_event *cq_event; 5027 5028 /* First, declare the async event has been handled */ 5029 spin_lock_irq(&phba->hbalock); 5030 phba->hba_flag &= ~ASYNC_EVENT; 5031 spin_unlock_irq(&phba->hbalock); 5032 /* Now, handle all the async events */ 5033 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 5034 /* Get the first event from the head of the event queue */ 5035 spin_lock_irq(&phba->hbalock); 5036 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 5037 cq_event, struct lpfc_cq_event, list); 5038 spin_unlock_irq(&phba->hbalock); 5039 /* Process the asynchronous event */ 5040 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 5041 case LPFC_TRAILER_CODE_LINK: 5042 lpfc_sli4_async_link_evt(phba, 5043 &cq_event->cqe.acqe_link); 5044 break; 5045 case LPFC_TRAILER_CODE_FCOE: 5046 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 5047 break; 5048 case LPFC_TRAILER_CODE_DCBX: 5049 lpfc_sli4_async_dcbx_evt(phba, 5050 &cq_event->cqe.acqe_dcbx); 5051 break; 5052 case LPFC_TRAILER_CODE_GRP5: 5053 lpfc_sli4_async_grp5_evt(phba, 5054 &cq_event->cqe.acqe_grp5); 5055 break; 5056 case LPFC_TRAILER_CODE_FC: 5057 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 5058 break; 5059 case LPFC_TRAILER_CODE_SLI: 5060 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 5061 break; 5062 default: 5063 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5064 "1804 Invalid asynchrous event code: " 5065 "x%x\n", bf_get(lpfc_trailer_code, 5066 &cq_event->cqe.mcqe_cmpl)); 5067 break; 5068 } 5069 /* Free the completion event processed to the free pool */ 5070 lpfc_sli4_cq_event_release(phba, cq_event); 5071 } 5072 } 5073 5074 /** 5075 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 5076 * @phba: pointer to lpfc hba data structure. 5077 * 5078 * This routine is invoked by the worker thread to process FCF table 5079 * rediscovery pending completion event. 5080 **/ 5081 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 5082 { 5083 int rc; 5084 5085 spin_lock_irq(&phba->hbalock); 5086 /* Clear FCF rediscovery timeout event */ 5087 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 5088 /* Clear driver fast failover FCF record flag */ 5089 phba->fcf.failover_rec.flag = 0; 5090 /* Set state for FCF fast failover */ 5091 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 5092 spin_unlock_irq(&phba->hbalock); 5093 5094 /* Scan FCF table from the first entry to re-discover SAN */ 5095 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5096 "2777 Start post-quiescent FCF table scan\n"); 5097 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 5098 if (rc) 5099 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5100 "2747 Issue FCF scan read FCF mailbox " 5101 "command failed 0x%x\n", rc); 5102 } 5103 5104 /** 5105 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 5106 * @phba: pointer to lpfc hba data structure. 5107 * @dev_grp: The HBA PCI-Device group number. 5108 * 5109 * This routine is invoked to set up the per HBA PCI-Device group function 5110 * API jump table entries. 5111 * 5112 * Return: 0 if success, otherwise -ENODEV 5113 **/ 5114 int 5115 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5116 { 5117 int rc; 5118 5119 /* Set up lpfc PCI-device group */ 5120 phba->pci_dev_grp = dev_grp; 5121 5122 /* The LPFC_PCI_DEV_OC uses SLI4 */ 5123 if (dev_grp == LPFC_PCI_DEV_OC) 5124 phba->sli_rev = LPFC_SLI_REV4; 5125 5126 /* Set up device INIT API function jump table */ 5127 rc = lpfc_init_api_table_setup(phba, dev_grp); 5128 if (rc) 5129 return -ENODEV; 5130 /* Set up SCSI API function jump table */ 5131 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 5132 if (rc) 5133 return -ENODEV; 5134 /* Set up SLI API function jump table */ 5135 rc = lpfc_sli_api_table_setup(phba, dev_grp); 5136 if (rc) 5137 return -ENODEV; 5138 /* Set up MBOX API function jump table */ 5139 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 5140 if (rc) 5141 return -ENODEV; 5142 5143 return 0; 5144 } 5145 5146 /** 5147 * lpfc_log_intr_mode - Log the active interrupt mode 5148 * @phba: pointer to lpfc hba data structure. 5149 * @intr_mode: active interrupt mode adopted. 5150 * 5151 * This routine it invoked to log the currently used active interrupt mode 5152 * to the device. 5153 **/ 5154 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 5155 { 5156 switch (intr_mode) { 5157 case 0: 5158 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5159 "0470 Enable INTx interrupt mode.\n"); 5160 break; 5161 case 1: 5162 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5163 "0481 Enabled MSI interrupt mode.\n"); 5164 break; 5165 case 2: 5166 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5167 "0480 Enabled MSI-X interrupt mode.\n"); 5168 break; 5169 default: 5170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5171 "0482 Illegal interrupt mode.\n"); 5172 break; 5173 } 5174 return; 5175 } 5176 5177 /** 5178 * lpfc_enable_pci_dev - Enable a generic PCI device. 5179 * @phba: pointer to lpfc hba data structure. 5180 * 5181 * This routine is invoked to enable the PCI device that is common to all 5182 * PCI devices. 5183 * 5184 * Return codes 5185 * 0 - successful 5186 * other values - error 5187 **/ 5188 static int 5189 lpfc_enable_pci_dev(struct lpfc_hba *phba) 5190 { 5191 struct pci_dev *pdev; 5192 5193 /* Obtain PCI device reference */ 5194 if (!phba->pcidev) 5195 goto out_error; 5196 else 5197 pdev = phba->pcidev; 5198 /* Enable PCI device */ 5199 if (pci_enable_device_mem(pdev)) 5200 goto out_error; 5201 /* Request PCI resource for the device */ 5202 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME)) 5203 goto out_disable_device; 5204 /* Set up device as PCI master and save state for EEH */ 5205 pci_set_master(pdev); 5206 pci_try_set_mwi(pdev); 5207 pci_save_state(pdev); 5208 5209 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 5210 if (pci_is_pcie(pdev)) 5211 pdev->needs_freset = 1; 5212 5213 return 0; 5214 5215 out_disable_device: 5216 pci_disable_device(pdev); 5217 out_error: 5218 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5219 "1401 Failed to enable pci device\n"); 5220 return -ENODEV; 5221 } 5222 5223 /** 5224 * lpfc_disable_pci_dev - Disable a generic PCI device. 5225 * @phba: pointer to lpfc hba data structure. 5226 * 5227 * This routine is invoked to disable the PCI device that is common to all 5228 * PCI devices. 5229 **/ 5230 static void 5231 lpfc_disable_pci_dev(struct lpfc_hba *phba) 5232 { 5233 struct pci_dev *pdev; 5234 5235 /* Obtain PCI device reference */ 5236 if (!phba->pcidev) 5237 return; 5238 else 5239 pdev = phba->pcidev; 5240 /* Release PCI resource and disable PCI device */ 5241 pci_release_mem_regions(pdev); 5242 pci_disable_device(pdev); 5243 5244 return; 5245 } 5246 5247 /** 5248 * lpfc_reset_hba - Reset a hba 5249 * @phba: pointer to lpfc hba data structure. 5250 * 5251 * This routine is invoked to reset a hba device. It brings the HBA 5252 * offline, performs a board restart, and then brings the board back 5253 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 5254 * on outstanding mailbox commands. 5255 **/ 5256 void 5257 lpfc_reset_hba(struct lpfc_hba *phba) 5258 { 5259 /* If resets are disabled then set error state and return. */ 5260 if (!phba->cfg_enable_hba_reset) { 5261 phba->link_state = LPFC_HBA_ERROR; 5262 return; 5263 } 5264 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) 5265 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 5266 else 5267 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 5268 lpfc_offline(phba); 5269 lpfc_sli_brdrestart(phba); 5270 lpfc_online(phba); 5271 lpfc_unblock_mgmt_io(phba); 5272 } 5273 5274 /** 5275 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 5276 * @phba: pointer to lpfc hba data structure. 5277 * 5278 * This function enables the PCI SR-IOV virtual functions to a physical 5279 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5280 * enable the number of virtual functions to the physical function. As 5281 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5282 * API call does not considered as an error condition for most of the device. 5283 **/ 5284 uint16_t 5285 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 5286 { 5287 struct pci_dev *pdev = phba->pcidev; 5288 uint16_t nr_virtfn; 5289 int pos; 5290 5291 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 5292 if (pos == 0) 5293 return 0; 5294 5295 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 5296 return nr_virtfn; 5297 } 5298 5299 /** 5300 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 5301 * @phba: pointer to lpfc hba data structure. 5302 * @nr_vfn: number of virtual functions to be enabled. 5303 * 5304 * This function enables the PCI SR-IOV virtual functions to a physical 5305 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5306 * enable the number of virtual functions to the physical function. As 5307 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5308 * API call does not considered as an error condition for most of the device. 5309 **/ 5310 int 5311 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 5312 { 5313 struct pci_dev *pdev = phba->pcidev; 5314 uint16_t max_nr_vfn; 5315 int rc; 5316 5317 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 5318 if (nr_vfn > max_nr_vfn) { 5319 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5320 "3057 Requested vfs (%d) greater than " 5321 "supported vfs (%d)", nr_vfn, max_nr_vfn); 5322 return -EINVAL; 5323 } 5324 5325 rc = pci_enable_sriov(pdev, nr_vfn); 5326 if (rc) { 5327 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5328 "2806 Failed to enable sriov on this device " 5329 "with vfn number nr_vf:%d, rc:%d\n", 5330 nr_vfn, rc); 5331 } else 5332 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5333 "2807 Successful enable sriov on this device " 5334 "with vfn number nr_vf:%d\n", nr_vfn); 5335 return rc; 5336 } 5337 5338 /** 5339 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5340 * @phba: pointer to lpfc hba data structure. 5341 * 5342 * This routine is invoked to set up the driver internal resources before the 5343 * device specific resource setup to support the HBA device it attached to. 5344 * 5345 * Return codes 5346 * 0 - successful 5347 * other values - error 5348 **/ 5349 static int 5350 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5351 { 5352 struct lpfc_sli *psli = &phba->sli; 5353 5354 /* 5355 * Driver resources common to all SLI revisions 5356 */ 5357 atomic_set(&phba->fast_event_count, 0); 5358 spin_lock_init(&phba->hbalock); 5359 5360 /* Initialize ndlp management spinlock */ 5361 spin_lock_init(&phba->ndlp_lock); 5362 5363 INIT_LIST_HEAD(&phba->port_list); 5364 INIT_LIST_HEAD(&phba->work_list); 5365 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5366 5367 /* Initialize the wait queue head for the kernel thread */ 5368 init_waitqueue_head(&phba->work_waitq); 5369 5370 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5371 "1403 Protocols supported %s %s %s\n", 5372 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ? 5373 "SCSI" : " "), 5374 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ? 5375 "NVME" : " "), 5376 (phba->nvmet_support ? "NVMET" : " ")); 5377 5378 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5379 /* Initialize the scsi buffer list used by driver for scsi IO */ 5380 spin_lock_init(&phba->scsi_buf_list_get_lock); 5381 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); 5382 spin_lock_init(&phba->scsi_buf_list_put_lock); 5383 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 5384 } 5385 5386 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) && 5387 (phba->nvmet_support == 0)) { 5388 /* Initialize the NVME buffer list used by driver for NVME IO */ 5389 spin_lock_init(&phba->nvme_buf_list_get_lock); 5390 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get); 5391 spin_lock_init(&phba->nvme_buf_list_put_lock); 5392 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 5393 } 5394 5395 /* Initialize the fabric iocb list */ 5396 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5397 5398 /* Initialize list to save ELS buffers */ 5399 INIT_LIST_HEAD(&phba->elsbuf); 5400 5401 /* Initialize FCF connection rec list */ 5402 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5403 5404 /* Initialize OAS configuration list */ 5405 spin_lock_init(&phba->devicelock); 5406 INIT_LIST_HEAD(&phba->luns); 5407 5408 /* MBOX heartbeat timer */ 5409 init_timer(&psli->mbox_tmo); 5410 psli->mbox_tmo.function = lpfc_mbox_timeout; 5411 psli->mbox_tmo.data = (unsigned long) phba; 5412 /* Fabric block timer */ 5413 init_timer(&phba->fabric_block_timer); 5414 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 5415 phba->fabric_block_timer.data = (unsigned long) phba; 5416 /* EA polling mode timer */ 5417 init_timer(&phba->eratt_poll); 5418 phba->eratt_poll.function = lpfc_poll_eratt; 5419 phba->eratt_poll.data = (unsigned long) phba; 5420 /* Heartbeat timer */ 5421 init_timer(&phba->hb_tmofunc); 5422 phba->hb_tmofunc.function = lpfc_hb_timeout; 5423 phba->hb_tmofunc.data = (unsigned long)phba; 5424 5425 return 0; 5426 } 5427 5428 /** 5429 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev 5430 * @phba: pointer to lpfc hba data structure. 5431 * 5432 * This routine is invoked to set up the driver internal resources specific to 5433 * support the SLI-3 HBA device it attached to. 5434 * 5435 * Return codes 5436 * 0 - successful 5437 * other values - error 5438 **/ 5439 static int 5440 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 5441 { 5442 int rc; 5443 5444 /* 5445 * Initialize timers used by driver 5446 */ 5447 5448 /* FCP polling mode timer */ 5449 init_timer(&phba->fcp_poll_timer); 5450 phba->fcp_poll_timer.function = lpfc_poll_timeout; 5451 phba->fcp_poll_timer.data = (unsigned long) phba; 5452 5453 /* Host attention work mask setup */ 5454 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 5455 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 5456 5457 /* Get all the module params for configuring this host */ 5458 lpfc_get_cfgparam(phba); 5459 /* Set up phase-1 common device driver resources */ 5460 5461 rc = lpfc_setup_driver_resource_phase1(phba); 5462 if (rc) 5463 return -ENODEV; 5464 5465 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 5466 phba->menlo_flag |= HBA_MENLO_SUPPORT; 5467 /* check for menlo minimum sg count */ 5468 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 5469 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 5470 } 5471 5472 if (!phba->sli.sli3_ring) 5473 phba->sli.sli3_ring = kzalloc(LPFC_SLI3_MAX_RING * 5474 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 5475 if (!phba->sli.sli3_ring) 5476 return -ENOMEM; 5477 5478 /* 5479 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 5480 * used to create the sg_dma_buf_pool must be dynamically calculated. 5481 */ 5482 5483 /* Initialize the host templates the configured values. */ 5484 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5485 lpfc_template_s3.sg_tablesize = phba->cfg_sg_seg_cnt; 5486 5487 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ 5488 if (phba->cfg_enable_bg) { 5489 /* 5490 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 5491 * the FCP rsp, and a BDE for each. Sice we have no control 5492 * over how many protection data segments the SCSI Layer 5493 * will hand us (ie: there could be one for every block 5494 * in the IO), we just allocate enough BDEs to accomidate 5495 * our max amount and we need to limit lpfc_sg_seg_cnt to 5496 * minimize the risk of running out. 5497 */ 5498 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5499 sizeof(struct fcp_rsp) + 5500 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64)); 5501 5502 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF) 5503 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF; 5504 5505 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */ 5506 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT; 5507 } else { 5508 /* 5509 * The scsi_buf for a regular I/O will hold the FCP cmnd, 5510 * the FCP rsp, a BDE for each, and a BDE for up to 5511 * cfg_sg_seg_cnt data segments. 5512 */ 5513 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5514 sizeof(struct fcp_rsp) + 5515 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 5516 5517 /* Total BDEs in BPL for scsi_sg_list */ 5518 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5519 } 5520 5521 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5522 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n", 5523 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5524 phba->cfg_total_seg_cnt); 5525 5526 phba->max_vpi = LPFC_MAX_VPI; 5527 /* This will be set to correct value after config_port mbox */ 5528 phba->max_vports = 0; 5529 5530 /* 5531 * Initialize the SLI Layer to run with lpfc HBAs. 5532 */ 5533 lpfc_sli_setup(phba); 5534 lpfc_sli_queue_init(phba); 5535 5536 /* Allocate device driver memory */ 5537 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 5538 return -ENOMEM; 5539 5540 /* 5541 * Enable sr-iov virtual functions if supported and configured 5542 * through the module parameter. 5543 */ 5544 if (phba->cfg_sriov_nr_virtfn > 0) { 5545 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5546 phba->cfg_sriov_nr_virtfn); 5547 if (rc) { 5548 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5549 "2808 Requested number of SR-IOV " 5550 "virtual functions (%d) is not " 5551 "supported\n", 5552 phba->cfg_sriov_nr_virtfn); 5553 phba->cfg_sriov_nr_virtfn = 0; 5554 } 5555 } 5556 5557 return 0; 5558 } 5559 5560 /** 5561 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 5562 * @phba: pointer to lpfc hba data structure. 5563 * 5564 * This routine is invoked to unset the driver internal resources set up 5565 * specific for supporting the SLI-3 HBA device it attached to. 5566 **/ 5567 static void 5568 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 5569 { 5570 /* Free device driver memory allocated */ 5571 lpfc_mem_free_all(phba); 5572 5573 return; 5574 } 5575 5576 /** 5577 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 5578 * @phba: pointer to lpfc hba data structure. 5579 * 5580 * This routine is invoked to set up the driver internal resources specific to 5581 * support the SLI-4 HBA device it attached to. 5582 * 5583 * Return codes 5584 * 0 - successful 5585 * other values - error 5586 **/ 5587 static int 5588 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 5589 { 5590 LPFC_MBOXQ_t *mboxq; 5591 MAILBOX_t *mb; 5592 int rc, i, max_buf_size; 5593 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 5594 struct lpfc_mqe *mqe; 5595 int longs; 5596 int fof_vectors = 0; 5597 uint64_t wwn; 5598 5599 phba->sli4_hba.num_online_cpu = num_online_cpus(); 5600 phba->sli4_hba.num_present_cpu = lpfc_present_cpu; 5601 phba->sli4_hba.curr_disp_cpu = 0; 5602 5603 /* Get all the module params for configuring this host */ 5604 lpfc_get_cfgparam(phba); 5605 5606 /* Set up phase-1 common device driver resources */ 5607 rc = lpfc_setup_driver_resource_phase1(phba); 5608 if (rc) 5609 return -ENODEV; 5610 5611 /* Before proceed, wait for POST done and device ready */ 5612 rc = lpfc_sli4_post_status_check(phba); 5613 if (rc) 5614 return -ENODEV; 5615 5616 /* 5617 * Initialize timers used by driver 5618 */ 5619 5620 init_timer(&phba->rrq_tmr); 5621 phba->rrq_tmr.function = lpfc_rrq_timeout; 5622 phba->rrq_tmr.data = (unsigned long)phba; 5623 5624 /* FCF rediscover timer */ 5625 init_timer(&phba->fcf.redisc_wait); 5626 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 5627 phba->fcf.redisc_wait.data = (unsigned long)phba; 5628 5629 /* 5630 * Control structure for handling external multi-buffer mailbox 5631 * command pass-through. 5632 */ 5633 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 5634 sizeof(struct lpfc_mbox_ext_buf_ctx)); 5635 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 5636 5637 phba->max_vpi = LPFC_MAX_VPI; 5638 5639 /* This will be set to correct value after the read_config mbox */ 5640 phba->max_vports = 0; 5641 5642 /* Program the default value of vlan_id and fc_map */ 5643 phba->valid_vlan = 0; 5644 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 5645 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 5646 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 5647 5648 /* 5649 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 5650 * we will associate a new ring, for each EQ/CQ/WQ tuple. 5651 * The WQ create will allocate the ring. 5652 */ 5653 5654 /* 5655 * It doesn't matter what family our adapter is in, we are 5656 * limited to 2 Pages, 512 SGEs, for our SGL. 5657 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp 5658 */ 5659 max_buf_size = (2 * SLI4_PAGE_SIZE); 5660 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2) 5661 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2; 5662 5663 /* 5664 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size 5665 * used to create the sg_dma_buf_pool must be calculated. 5666 */ 5667 if (phba->cfg_enable_bg) { 5668 /* 5669 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd, 5670 * the FCP rsp, and a SGE. Sice we have no control 5671 * over how many protection segments the SCSI Layer 5672 * will hand us (ie: there could be one for every block 5673 * in the IO), just allocate enough SGEs to accomidate 5674 * our max amount and we need to limit lpfc_sg_seg_cnt 5675 * to minimize the risk of running out. 5676 */ 5677 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5678 sizeof(struct fcp_rsp) + max_buf_size; 5679 5680 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ 5681 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; 5682 5683 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF) 5684 phba->cfg_sg_seg_cnt = 5685 LPFC_MAX_SG_SLI4_SEG_CNT_DIF; 5686 } else { 5687 /* 5688 * The scsi_buf for a regular I/O holds the FCP cmnd, 5689 * the FCP rsp, a SGE for each, and a SGE for up to 5690 * cfg_sg_seg_cnt data segments. 5691 */ 5692 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5693 sizeof(struct fcp_rsp) + 5694 ((phba->cfg_sg_seg_cnt + 2) * 5695 sizeof(struct sli4_sge)); 5696 5697 /* Total SGEs for scsi_sg_list */ 5698 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5699 5700 /* 5701 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only 5702 * need to post 1 page for the SGL. 5703 */ 5704 } 5705 5706 /* Initialize the host templates with the updated values. */ 5707 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5708 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5709 5710 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) 5711 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; 5712 else 5713 phba->cfg_sg_dma_buf_size = 5714 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); 5715 5716 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5717 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n", 5718 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5719 phba->cfg_total_seg_cnt); 5720 5721 /* Initialize buffer queue management fields */ 5722 INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list); 5723 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 5724 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 5725 5726 /* 5727 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 5728 */ 5729 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5730 /* Initialize the Abort scsi buffer list used by driver */ 5731 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 5732 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 5733 } 5734 5735 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 5736 /* Initialize the Abort nvme buffer list used by driver */ 5737 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock); 5738 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 5739 } 5740 5741 /* This abort list used by worker thread */ 5742 spin_lock_init(&phba->sli4_hba.sgl_list_lock); 5743 spin_lock_init(&phba->sli4_hba.nvmet_io_lock); 5744 5745 /* 5746 * Initialize driver internal slow-path work queues 5747 */ 5748 5749 /* Driver internel slow-path CQ Event pool */ 5750 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 5751 /* Response IOCB work queue list */ 5752 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 5753 /* Asynchronous event CQ Event work queue list */ 5754 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 5755 /* Fast-path XRI aborted CQ Event work queue list */ 5756 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 5757 /* Slow-path XRI aborted CQ Event work queue list */ 5758 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 5759 /* Receive queue CQ Event work queue list */ 5760 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 5761 5762 /* Initialize extent block lists. */ 5763 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 5764 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 5765 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 5766 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 5767 5768 /* initialize optic_state to 0xFF */ 5769 phba->sli4_hba.lnk_info.optic_state = 0xff; 5770 5771 /* Allocate device driver memory */ 5772 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 5773 if (rc) 5774 return -ENOMEM; 5775 5776 /* IF Type 2 ports get initialized now. */ 5777 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5778 LPFC_SLI_INTF_IF_TYPE_2) { 5779 rc = lpfc_pci_function_reset(phba); 5780 if (unlikely(rc)) { 5781 rc = -ENODEV; 5782 goto out_free_mem; 5783 } 5784 phba->temp_sensor_support = 1; 5785 } 5786 5787 /* Create the bootstrap mailbox command */ 5788 rc = lpfc_create_bootstrap_mbox(phba); 5789 if (unlikely(rc)) 5790 goto out_free_mem; 5791 5792 /* Set up the host's endian order with the device. */ 5793 rc = lpfc_setup_endian_order(phba); 5794 if (unlikely(rc)) 5795 goto out_free_bsmbx; 5796 5797 /* Set up the hba's configuration parameters. */ 5798 rc = lpfc_sli4_read_config(phba); 5799 if (unlikely(rc)) 5800 goto out_free_bsmbx; 5801 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba); 5802 if (unlikely(rc)) 5803 goto out_free_bsmbx; 5804 5805 /* IF Type 0 ports get initialized now. */ 5806 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5807 LPFC_SLI_INTF_IF_TYPE_0) { 5808 rc = lpfc_pci_function_reset(phba); 5809 if (unlikely(rc)) 5810 goto out_free_bsmbx; 5811 } 5812 5813 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 5814 GFP_KERNEL); 5815 if (!mboxq) { 5816 rc = -ENOMEM; 5817 goto out_free_bsmbx; 5818 } 5819 5820 /* Check for NVMET being configured */ 5821 phba->nvmet_support = 0; 5822 if (lpfc_enable_nvmet_cnt) { 5823 5824 /* First get WWN of HBA instance */ 5825 lpfc_read_nv(phba, mboxq); 5826 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5827 if (rc != MBX_SUCCESS) { 5828 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5829 "6016 Mailbox failed , mbxCmd x%x " 5830 "READ_NV, mbxStatus x%x\n", 5831 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 5832 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 5833 rc = -EIO; 5834 goto out_free_bsmbx; 5835 } 5836 mb = &mboxq->u.mb; 5837 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename, 5838 sizeof(uint64_t)); 5839 wwn = cpu_to_be64(wwn); 5840 phba->sli4_hba.wwnn.u.name = wwn; 5841 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, 5842 sizeof(uint64_t)); 5843 /* wwn is WWPN of HBA instance */ 5844 wwn = cpu_to_be64(wwn); 5845 phba->sli4_hba.wwpn.u.name = wwn; 5846 5847 /* Check to see if it matches any module parameter */ 5848 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) { 5849 if (wwn == lpfc_enable_nvmet[i]) { 5850 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5851 "6017 NVME Target %016llx\n", 5852 wwn); 5853 phba->nvmet_support = 1; /* a match */ 5854 } 5855 } 5856 } 5857 5858 lpfc_nvme_mod_param_dep(phba); 5859 5860 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 5861 lpfc_supported_pages(mboxq); 5862 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5863 if (!rc) { 5864 mqe = &mboxq->u.mqe; 5865 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 5866 LPFC_MAX_SUPPORTED_PAGES); 5867 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 5868 switch (pn_page[i]) { 5869 case LPFC_SLI4_PARAMETERS: 5870 phba->sli4_hba.pc_sli4_params.supported = 1; 5871 break; 5872 default: 5873 break; 5874 } 5875 } 5876 /* Read the port's SLI4 Parameters capabilities if supported. */ 5877 if (phba->sli4_hba.pc_sli4_params.supported) 5878 rc = lpfc_pc_sli4_params_get(phba, mboxq); 5879 if (rc) { 5880 mempool_free(mboxq, phba->mbox_mem_pool); 5881 rc = -EIO; 5882 goto out_free_bsmbx; 5883 } 5884 } 5885 5886 /* 5887 * Get sli4 parameters that override parameters from Port capabilities. 5888 * If this call fails, it isn't critical unless the SLI4 parameters come 5889 * back in conflict. 5890 */ 5891 rc = lpfc_get_sli4_parameters(phba, mboxq); 5892 if (rc) { 5893 if (phba->sli4_hba.extents_in_use && 5894 phba->sli4_hba.rpi_hdrs_in_use) { 5895 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5896 "2999 Unsupported SLI4 Parameters " 5897 "Extents and RPI headers enabled.\n"); 5898 } 5899 mempool_free(mboxq, phba->mbox_mem_pool); 5900 goto out_free_bsmbx; 5901 } 5902 5903 mempool_free(mboxq, phba->mbox_mem_pool); 5904 5905 /* Verify OAS is supported */ 5906 lpfc_sli4_oas_verify(phba); 5907 if (phba->cfg_fof) 5908 fof_vectors = 1; 5909 5910 /* Verify all the SLI4 queues */ 5911 rc = lpfc_sli4_queue_verify(phba); 5912 if (rc) 5913 goto out_free_bsmbx; 5914 5915 /* Create driver internal CQE event pool */ 5916 rc = lpfc_sli4_cq_event_pool_create(phba); 5917 if (rc) 5918 goto out_free_bsmbx; 5919 5920 /* Initialize sgl lists per host */ 5921 lpfc_init_sgl_list(phba); 5922 5923 /* Allocate and initialize active sgl array */ 5924 rc = lpfc_init_active_sgl_array(phba); 5925 if (rc) { 5926 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5927 "1430 Failed to initialize sgl list.\n"); 5928 goto out_destroy_cq_event_pool; 5929 } 5930 rc = lpfc_sli4_init_rpi_hdrs(phba); 5931 if (rc) { 5932 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5933 "1432 Failed to initialize rpi headers.\n"); 5934 goto out_free_active_sgl; 5935 } 5936 5937 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 5938 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 5939 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 5940 GFP_KERNEL); 5941 if (!phba->fcf.fcf_rr_bmask) { 5942 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5943 "2759 Failed allocate memory for FCF round " 5944 "robin failover bmask\n"); 5945 rc = -ENOMEM; 5946 goto out_remove_rpi_hdrs; 5947 } 5948 5949 phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs, 5950 sizeof(struct lpfc_hba_eq_hdl), 5951 GFP_KERNEL); 5952 if (!phba->sli4_hba.hba_eq_hdl) { 5953 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5954 "2572 Failed allocate memory for " 5955 "fast-path per-EQ handle array\n"); 5956 rc = -ENOMEM; 5957 goto out_free_fcf_rr_bmask; 5958 } 5959 5960 phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu, 5961 sizeof(struct lpfc_vector_map_info), 5962 GFP_KERNEL); 5963 if (!phba->sli4_hba.cpu_map) { 5964 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5965 "3327 Failed allocate memory for msi-x " 5966 "interrupt vector mapping\n"); 5967 rc = -ENOMEM; 5968 goto out_free_hba_eq_hdl; 5969 } 5970 if (lpfc_used_cpu == NULL) { 5971 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t), 5972 GFP_KERNEL); 5973 if (!lpfc_used_cpu) { 5974 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5975 "3335 Failed allocate memory for msi-x " 5976 "interrupt vector mapping\n"); 5977 kfree(phba->sli4_hba.cpu_map); 5978 rc = -ENOMEM; 5979 goto out_free_hba_eq_hdl; 5980 } 5981 for (i = 0; i < lpfc_present_cpu; i++) 5982 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY; 5983 } 5984 5985 /* 5986 * Enable sr-iov virtual functions if supported and configured 5987 * through the module parameter. 5988 */ 5989 if (phba->cfg_sriov_nr_virtfn > 0) { 5990 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5991 phba->cfg_sriov_nr_virtfn); 5992 if (rc) { 5993 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5994 "3020 Requested number of SR-IOV " 5995 "virtual functions (%d) is not " 5996 "supported\n", 5997 phba->cfg_sriov_nr_virtfn); 5998 phba->cfg_sriov_nr_virtfn = 0; 5999 } 6000 } 6001 6002 return 0; 6003 6004 out_free_hba_eq_hdl: 6005 kfree(phba->sli4_hba.hba_eq_hdl); 6006 out_free_fcf_rr_bmask: 6007 kfree(phba->fcf.fcf_rr_bmask); 6008 out_remove_rpi_hdrs: 6009 lpfc_sli4_remove_rpi_hdrs(phba); 6010 out_free_active_sgl: 6011 lpfc_free_active_sgl(phba); 6012 out_destroy_cq_event_pool: 6013 lpfc_sli4_cq_event_pool_destroy(phba); 6014 out_free_bsmbx: 6015 lpfc_destroy_bootstrap_mbox(phba); 6016 out_free_mem: 6017 lpfc_mem_free(phba); 6018 return rc; 6019 } 6020 6021 /** 6022 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 6023 * @phba: pointer to lpfc hba data structure. 6024 * 6025 * This routine is invoked to unset the driver internal resources set up 6026 * specific for supporting the SLI-4 HBA device it attached to. 6027 **/ 6028 static void 6029 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 6030 { 6031 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6032 6033 /* Free memory allocated for msi-x interrupt vector to CPU mapping */ 6034 kfree(phba->sli4_hba.cpu_map); 6035 phba->sli4_hba.num_present_cpu = 0; 6036 phba->sli4_hba.num_online_cpu = 0; 6037 phba->sli4_hba.curr_disp_cpu = 0; 6038 6039 /* Free memory allocated for fast-path work queue handles */ 6040 kfree(phba->sli4_hba.hba_eq_hdl); 6041 6042 /* Free the allocated rpi headers. */ 6043 lpfc_sli4_remove_rpi_hdrs(phba); 6044 lpfc_sli4_remove_rpis(phba); 6045 6046 /* Free eligible FCF index bmask */ 6047 kfree(phba->fcf.fcf_rr_bmask); 6048 6049 /* Free the ELS sgl list */ 6050 lpfc_free_active_sgl(phba); 6051 lpfc_free_els_sgl_list(phba); 6052 lpfc_free_nvmet_sgl_list(phba); 6053 6054 /* Free the completion queue EQ event pool */ 6055 lpfc_sli4_cq_event_release_all(phba); 6056 lpfc_sli4_cq_event_pool_destroy(phba); 6057 6058 /* Release resource identifiers. */ 6059 lpfc_sli4_dealloc_resource_identifiers(phba); 6060 6061 /* Free the bsmbx region. */ 6062 lpfc_destroy_bootstrap_mbox(phba); 6063 6064 /* Free the SLI Layer memory with SLI4 HBAs */ 6065 lpfc_mem_free_all(phba); 6066 6067 /* Free the current connect table */ 6068 list_for_each_entry_safe(conn_entry, next_conn_entry, 6069 &phba->fcf_conn_rec_list, list) { 6070 list_del_init(&conn_entry->list); 6071 kfree(conn_entry); 6072 } 6073 6074 return; 6075 } 6076 6077 /** 6078 * lpfc_init_api_table_setup - Set up init api function jump table 6079 * @phba: The hba struct for which this call is being executed. 6080 * @dev_grp: The HBA PCI-Device group number. 6081 * 6082 * This routine sets up the device INIT interface API function jump table 6083 * in @phba struct. 6084 * 6085 * Returns: 0 - success, -ENODEV - failure. 6086 **/ 6087 int 6088 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 6089 { 6090 phba->lpfc_hba_init_link = lpfc_hba_init_link; 6091 phba->lpfc_hba_down_link = lpfc_hba_down_link; 6092 phba->lpfc_selective_reset = lpfc_selective_reset; 6093 switch (dev_grp) { 6094 case LPFC_PCI_DEV_LP: 6095 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 6096 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 6097 phba->lpfc_stop_port = lpfc_stop_port_s3; 6098 break; 6099 case LPFC_PCI_DEV_OC: 6100 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 6101 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 6102 phba->lpfc_stop_port = lpfc_stop_port_s4; 6103 break; 6104 default: 6105 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6106 "1431 Invalid HBA PCI-device group: 0x%x\n", 6107 dev_grp); 6108 return -ENODEV; 6109 break; 6110 } 6111 return 0; 6112 } 6113 6114 /** 6115 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 6116 * @phba: pointer to lpfc hba data structure. 6117 * 6118 * This routine is invoked to set up the driver internal resources after the 6119 * device specific resource setup to support the HBA device it attached to. 6120 * 6121 * Return codes 6122 * 0 - successful 6123 * other values - error 6124 **/ 6125 static int 6126 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 6127 { 6128 int error; 6129 6130 /* Startup the kernel thread for this host adapter. */ 6131 phba->worker_thread = kthread_run(lpfc_do_work, phba, 6132 "lpfc_worker_%d", phba->brd_no); 6133 if (IS_ERR(phba->worker_thread)) { 6134 error = PTR_ERR(phba->worker_thread); 6135 return error; 6136 } 6137 6138 return 0; 6139 } 6140 6141 /** 6142 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 6143 * @phba: pointer to lpfc hba data structure. 6144 * 6145 * This routine is invoked to unset the driver internal resources set up after 6146 * the device specific resource setup for supporting the HBA device it 6147 * attached to. 6148 **/ 6149 static void 6150 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 6151 { 6152 /* Stop kernel worker thread */ 6153 kthread_stop(phba->worker_thread); 6154 } 6155 6156 /** 6157 * lpfc_free_iocb_list - Free iocb list. 6158 * @phba: pointer to lpfc hba data structure. 6159 * 6160 * This routine is invoked to free the driver's IOCB list and memory. 6161 **/ 6162 static void 6163 lpfc_free_iocb_list(struct lpfc_hba *phba) 6164 { 6165 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 6166 6167 spin_lock_irq(&phba->hbalock); 6168 list_for_each_entry_safe(iocbq_entry, iocbq_next, 6169 &phba->lpfc_iocb_list, list) { 6170 list_del(&iocbq_entry->list); 6171 kfree(iocbq_entry); 6172 phba->total_iocbq_bufs--; 6173 } 6174 spin_unlock_irq(&phba->hbalock); 6175 6176 return; 6177 } 6178 6179 /** 6180 * lpfc_init_iocb_list - Allocate and initialize iocb list. 6181 * @phba: pointer to lpfc hba data structure. 6182 * 6183 * This routine is invoked to allocate and initizlize the driver's IOCB 6184 * list and set up the IOCB tag array accordingly. 6185 * 6186 * Return codes 6187 * 0 - successful 6188 * other values - error 6189 **/ 6190 static int 6191 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 6192 { 6193 struct lpfc_iocbq *iocbq_entry = NULL; 6194 uint16_t iotag; 6195 int i; 6196 6197 /* Initialize and populate the iocb list per host. */ 6198 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 6199 for (i = 0; i < iocb_count; i++) { 6200 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 6201 if (iocbq_entry == NULL) { 6202 printk(KERN_ERR "%s: only allocated %d iocbs of " 6203 "expected %d count. Unloading driver.\n", 6204 __func__, i, LPFC_IOCB_LIST_CNT); 6205 goto out_free_iocbq; 6206 } 6207 6208 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 6209 if (iotag == 0) { 6210 kfree(iocbq_entry); 6211 printk(KERN_ERR "%s: failed to allocate IOTAG. " 6212 "Unloading driver.\n", __func__); 6213 goto out_free_iocbq; 6214 } 6215 iocbq_entry->sli4_lxritag = NO_XRI; 6216 iocbq_entry->sli4_xritag = NO_XRI; 6217 6218 spin_lock_irq(&phba->hbalock); 6219 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 6220 phba->total_iocbq_bufs++; 6221 spin_unlock_irq(&phba->hbalock); 6222 } 6223 6224 return 0; 6225 6226 out_free_iocbq: 6227 lpfc_free_iocb_list(phba); 6228 6229 return -ENOMEM; 6230 } 6231 6232 /** 6233 * lpfc_free_sgl_list - Free a given sgl list. 6234 * @phba: pointer to lpfc hba data structure. 6235 * @sglq_list: pointer to the head of sgl list. 6236 * 6237 * This routine is invoked to free a give sgl list and memory. 6238 **/ 6239 void 6240 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 6241 { 6242 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6243 6244 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 6245 list_del(&sglq_entry->list); 6246 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 6247 kfree(sglq_entry); 6248 } 6249 } 6250 6251 /** 6252 * lpfc_free_els_sgl_list - Free els sgl list. 6253 * @phba: pointer to lpfc hba data structure. 6254 * 6255 * This routine is invoked to free the driver's els sgl list and memory. 6256 **/ 6257 static void 6258 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 6259 { 6260 LIST_HEAD(sglq_list); 6261 6262 /* Retrieve all els sgls from driver list */ 6263 spin_lock_irq(&phba->hbalock); 6264 spin_lock(&phba->sli4_hba.sgl_list_lock); 6265 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list); 6266 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6267 spin_unlock_irq(&phba->hbalock); 6268 6269 /* Now free the sgl list */ 6270 lpfc_free_sgl_list(phba, &sglq_list); 6271 } 6272 6273 /** 6274 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list. 6275 * @phba: pointer to lpfc hba data structure. 6276 * 6277 * This routine is invoked to free the driver's nvmet sgl list and memory. 6278 **/ 6279 static void 6280 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba) 6281 { 6282 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6283 LIST_HEAD(sglq_list); 6284 6285 /* Retrieve all nvmet sgls from driver list */ 6286 spin_lock_irq(&phba->hbalock); 6287 spin_lock(&phba->sli4_hba.sgl_list_lock); 6288 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list); 6289 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6290 spin_unlock_irq(&phba->hbalock); 6291 6292 /* Now free the sgl list */ 6293 list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) { 6294 list_del(&sglq_entry->list); 6295 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys); 6296 kfree(sglq_entry); 6297 } 6298 } 6299 6300 /** 6301 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 6302 * @phba: pointer to lpfc hba data structure. 6303 * 6304 * This routine is invoked to allocate the driver's active sgl memory. 6305 * This array will hold the sglq_entry's for active IOs. 6306 **/ 6307 static int 6308 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 6309 { 6310 int size; 6311 size = sizeof(struct lpfc_sglq *); 6312 size *= phba->sli4_hba.max_cfg_param.max_xri; 6313 6314 phba->sli4_hba.lpfc_sglq_active_list = 6315 kzalloc(size, GFP_KERNEL); 6316 if (!phba->sli4_hba.lpfc_sglq_active_list) 6317 return -ENOMEM; 6318 return 0; 6319 } 6320 6321 /** 6322 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 6323 * @phba: pointer to lpfc hba data structure. 6324 * 6325 * This routine is invoked to walk through the array of active sglq entries 6326 * and free all of the resources. 6327 * This is just a place holder for now. 6328 **/ 6329 static void 6330 lpfc_free_active_sgl(struct lpfc_hba *phba) 6331 { 6332 kfree(phba->sli4_hba.lpfc_sglq_active_list); 6333 } 6334 6335 /** 6336 * lpfc_init_sgl_list - Allocate and initialize sgl list. 6337 * @phba: pointer to lpfc hba data structure. 6338 * 6339 * This routine is invoked to allocate and initizlize the driver's sgl 6340 * list and set up the sgl xritag tag array accordingly. 6341 * 6342 **/ 6343 static void 6344 lpfc_init_sgl_list(struct lpfc_hba *phba) 6345 { 6346 /* Initialize and populate the sglq list per host/VF. */ 6347 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list); 6348 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 6349 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list); 6350 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_sgl_list); 6351 6352 /* els xri-sgl book keeping */ 6353 phba->sli4_hba.els_xri_cnt = 0; 6354 6355 /* scsi xri-buffer book keeping */ 6356 phba->sli4_hba.scsi_xri_cnt = 0; 6357 6358 /* nvme xri-buffer book keeping */ 6359 phba->sli4_hba.nvme_xri_cnt = 0; 6360 } 6361 6362 /** 6363 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 6364 * @phba: pointer to lpfc hba data structure. 6365 * 6366 * This routine is invoked to post rpi header templates to the 6367 * port for those SLI4 ports that do not support extents. This routine 6368 * posts a PAGE_SIZE memory region to the port to hold up to 6369 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 6370 * and should be called only when interrupts are disabled. 6371 * 6372 * Return codes 6373 * 0 - successful 6374 * -ERROR - otherwise. 6375 **/ 6376 int 6377 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 6378 { 6379 int rc = 0; 6380 struct lpfc_rpi_hdr *rpi_hdr; 6381 6382 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 6383 if (!phba->sli4_hba.rpi_hdrs_in_use) 6384 return rc; 6385 if (phba->sli4_hba.extents_in_use) 6386 return -EIO; 6387 6388 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 6389 if (!rpi_hdr) { 6390 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 6391 "0391 Error during rpi post operation\n"); 6392 lpfc_sli4_remove_rpis(phba); 6393 rc = -ENODEV; 6394 } 6395 6396 return rc; 6397 } 6398 6399 /** 6400 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 6401 * @phba: pointer to lpfc hba data structure. 6402 * 6403 * This routine is invoked to allocate a single 4KB memory region to 6404 * support rpis and stores them in the phba. This single region 6405 * provides support for up to 64 rpis. The region is used globally 6406 * by the device. 6407 * 6408 * Returns: 6409 * A valid rpi hdr on success. 6410 * A NULL pointer on any failure. 6411 **/ 6412 struct lpfc_rpi_hdr * 6413 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 6414 { 6415 uint16_t rpi_limit, curr_rpi_range; 6416 struct lpfc_dmabuf *dmabuf; 6417 struct lpfc_rpi_hdr *rpi_hdr; 6418 uint32_t rpi_count; 6419 6420 /* 6421 * If the SLI4 port supports extents, posting the rpi header isn't 6422 * required. Set the expected maximum count and let the actual value 6423 * get set when extents are fully allocated. 6424 */ 6425 if (!phba->sli4_hba.rpi_hdrs_in_use) 6426 return NULL; 6427 if (phba->sli4_hba.extents_in_use) 6428 return NULL; 6429 6430 /* The limit on the logical index is just the max_rpi count. */ 6431 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 6432 phba->sli4_hba.max_cfg_param.max_rpi - 1; 6433 6434 spin_lock_irq(&phba->hbalock); 6435 /* 6436 * Establish the starting RPI in this header block. The starting 6437 * rpi is normalized to a zero base because the physical rpi is 6438 * port based. 6439 */ 6440 curr_rpi_range = phba->sli4_hba.next_rpi; 6441 spin_unlock_irq(&phba->hbalock); 6442 6443 /* 6444 * The port has a limited number of rpis. The increment here 6445 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 6446 * and to allow the full max_rpi range per port. 6447 */ 6448 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 6449 rpi_count = rpi_limit - curr_rpi_range; 6450 else 6451 rpi_count = LPFC_RPI_HDR_COUNT; 6452 6453 if (!rpi_count) 6454 return NULL; 6455 /* 6456 * First allocate the protocol header region for the port. The 6457 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 6458 */ 6459 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6460 if (!dmabuf) 6461 return NULL; 6462 6463 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, 6464 LPFC_HDR_TEMPLATE_SIZE, 6465 &dmabuf->phys, GFP_KERNEL); 6466 if (!dmabuf->virt) { 6467 rpi_hdr = NULL; 6468 goto err_free_dmabuf; 6469 } 6470 6471 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 6472 rpi_hdr = NULL; 6473 goto err_free_coherent; 6474 } 6475 6476 /* Save the rpi header data for cleanup later. */ 6477 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 6478 if (!rpi_hdr) 6479 goto err_free_coherent; 6480 6481 rpi_hdr->dmabuf = dmabuf; 6482 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 6483 rpi_hdr->page_count = 1; 6484 spin_lock_irq(&phba->hbalock); 6485 6486 /* The rpi_hdr stores the logical index only. */ 6487 rpi_hdr->start_rpi = curr_rpi_range; 6488 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 6489 6490 /* 6491 * The next_rpi stores the next logical module-64 rpi value used 6492 * to post physical rpis in subsequent rpi postings. 6493 */ 6494 phba->sli4_hba.next_rpi += rpi_count; 6495 spin_unlock_irq(&phba->hbalock); 6496 return rpi_hdr; 6497 6498 err_free_coherent: 6499 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 6500 dmabuf->virt, dmabuf->phys); 6501 err_free_dmabuf: 6502 kfree(dmabuf); 6503 return NULL; 6504 } 6505 6506 /** 6507 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 6508 * @phba: pointer to lpfc hba data structure. 6509 * 6510 * This routine is invoked to remove all memory resources allocated 6511 * to support rpis for SLI4 ports not supporting extents. This routine 6512 * presumes the caller has released all rpis consumed by fabric or port 6513 * logins and is prepared to have the header pages removed. 6514 **/ 6515 void 6516 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 6517 { 6518 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 6519 6520 if (!phba->sli4_hba.rpi_hdrs_in_use) 6521 goto exit; 6522 6523 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 6524 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 6525 list_del(&rpi_hdr->list); 6526 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 6527 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 6528 kfree(rpi_hdr->dmabuf); 6529 kfree(rpi_hdr); 6530 } 6531 exit: 6532 /* There are no rpis available to the port now. */ 6533 phba->sli4_hba.next_rpi = 0; 6534 } 6535 6536 /** 6537 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 6538 * @pdev: pointer to pci device data structure. 6539 * 6540 * This routine is invoked to allocate the driver hba data structure for an 6541 * HBA device. If the allocation is successful, the phba reference to the 6542 * PCI device data structure is set. 6543 * 6544 * Return codes 6545 * pointer to @phba - successful 6546 * NULL - error 6547 **/ 6548 static struct lpfc_hba * 6549 lpfc_hba_alloc(struct pci_dev *pdev) 6550 { 6551 struct lpfc_hba *phba; 6552 6553 /* Allocate memory for HBA structure */ 6554 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 6555 if (!phba) { 6556 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 6557 return NULL; 6558 } 6559 6560 /* Set reference to PCI device in HBA structure */ 6561 phba->pcidev = pdev; 6562 6563 /* Assign an unused board number */ 6564 phba->brd_no = lpfc_get_instance(); 6565 if (phba->brd_no < 0) { 6566 kfree(phba); 6567 return NULL; 6568 } 6569 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL; 6570 6571 spin_lock_init(&phba->ct_ev_lock); 6572 INIT_LIST_HEAD(&phba->ct_ev_waiters); 6573 6574 return phba; 6575 } 6576 6577 /** 6578 * lpfc_hba_free - Free driver hba data structure with a device. 6579 * @phba: pointer to lpfc hba data structure. 6580 * 6581 * This routine is invoked to free the driver hba data structure with an 6582 * HBA device. 6583 **/ 6584 static void 6585 lpfc_hba_free(struct lpfc_hba *phba) 6586 { 6587 /* Release the driver assigned board number */ 6588 idr_remove(&lpfc_hba_index, phba->brd_no); 6589 6590 /* Free memory allocated with sli3 rings */ 6591 kfree(phba->sli.sli3_ring); 6592 phba->sli.sli3_ring = NULL; 6593 6594 kfree(phba); 6595 return; 6596 } 6597 6598 /** 6599 * lpfc_create_shost - Create hba physical port with associated scsi host. 6600 * @phba: pointer to lpfc hba data structure. 6601 * 6602 * This routine is invoked to create HBA physical port and associate a SCSI 6603 * host with it. 6604 * 6605 * Return codes 6606 * 0 - successful 6607 * other values - error 6608 **/ 6609 static int 6610 lpfc_create_shost(struct lpfc_hba *phba) 6611 { 6612 struct lpfc_vport *vport; 6613 struct Scsi_Host *shost; 6614 6615 /* Initialize HBA FC structure */ 6616 phba->fc_edtov = FF_DEF_EDTOV; 6617 phba->fc_ratov = FF_DEF_RATOV; 6618 phba->fc_altov = FF_DEF_ALTOV; 6619 phba->fc_arbtov = FF_DEF_ARBTOV; 6620 6621 atomic_set(&phba->sdev_cnt, 0); 6622 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 6623 if (!vport) 6624 return -ENODEV; 6625 6626 shost = lpfc_shost_from_vport(vport); 6627 phba->pport = vport; 6628 6629 if (phba->nvmet_support) { 6630 /* Only 1 vport (pport) will support NVME target */ 6631 if (phba->txrdy_payload_pool == NULL) { 6632 phba->txrdy_payload_pool = pci_pool_create( 6633 "txrdy_pool", phba->pcidev, 6634 TXRDY_PAYLOAD_LEN, 16, 0); 6635 if (phba->txrdy_payload_pool) { 6636 phba->targetport = NULL; 6637 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME; 6638 lpfc_printf_log(phba, KERN_INFO, 6639 LOG_INIT | LOG_NVME_DISC, 6640 "6076 NVME Target Found\n"); 6641 } 6642 } 6643 } 6644 6645 lpfc_debugfs_initialize(vport); 6646 /* Put reference to SCSI host to driver's device private data */ 6647 pci_set_drvdata(phba->pcidev, shost); 6648 6649 /* 6650 * At this point we are fully registered with PSA. In addition, 6651 * any initial discovery should be completed. 6652 */ 6653 vport->load_flag |= FC_ALLOW_FDMI; 6654 if (phba->cfg_enable_SmartSAN || 6655 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { 6656 6657 /* Setup appropriate attribute masks */ 6658 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR; 6659 if (phba->cfg_enable_SmartSAN) 6660 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR; 6661 else 6662 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR; 6663 } 6664 return 0; 6665 } 6666 6667 /** 6668 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 6669 * @phba: pointer to lpfc hba data structure. 6670 * 6671 * This routine is invoked to destroy HBA physical port and the associated 6672 * SCSI host. 6673 **/ 6674 static void 6675 lpfc_destroy_shost(struct lpfc_hba *phba) 6676 { 6677 struct lpfc_vport *vport = phba->pport; 6678 6679 /* Destroy physical port that associated with the SCSI host */ 6680 destroy_port(vport); 6681 6682 return; 6683 } 6684 6685 /** 6686 * lpfc_setup_bg - Setup Block guard structures and debug areas. 6687 * @phba: pointer to lpfc hba data structure. 6688 * @shost: the shost to be used to detect Block guard settings. 6689 * 6690 * This routine sets up the local Block guard protocol settings for @shost. 6691 * This routine also allocates memory for debugging bg buffers. 6692 **/ 6693 static void 6694 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 6695 { 6696 uint32_t old_mask; 6697 uint32_t old_guard; 6698 6699 int pagecnt = 10; 6700 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 6701 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6702 "1478 Registering BlockGuard with the " 6703 "SCSI layer\n"); 6704 6705 old_mask = phba->cfg_prot_mask; 6706 old_guard = phba->cfg_prot_guard; 6707 6708 /* Only allow supported values */ 6709 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 6710 SHOST_DIX_TYPE0_PROTECTION | 6711 SHOST_DIX_TYPE1_PROTECTION); 6712 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP | 6713 SHOST_DIX_GUARD_CRC); 6714 6715 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 6716 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 6717 phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 6718 6719 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 6720 if ((old_mask != phba->cfg_prot_mask) || 6721 (old_guard != phba->cfg_prot_guard)) 6722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6723 "1475 Registering BlockGuard with the " 6724 "SCSI layer: mask %d guard %d\n", 6725 phba->cfg_prot_mask, 6726 phba->cfg_prot_guard); 6727 6728 scsi_host_set_prot(shost, phba->cfg_prot_mask); 6729 scsi_host_set_guard(shost, phba->cfg_prot_guard); 6730 } else 6731 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6732 "1479 Not Registering BlockGuard with the SCSI " 6733 "layer, Bad protection parameters: %d %d\n", 6734 old_mask, old_guard); 6735 } 6736 6737 if (!_dump_buf_data) { 6738 while (pagecnt) { 6739 spin_lock_init(&_dump_buf_lock); 6740 _dump_buf_data = 6741 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 6742 if (_dump_buf_data) { 6743 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6744 "9043 BLKGRD: allocated %d pages for " 6745 "_dump_buf_data at 0x%p\n", 6746 (1 << pagecnt), _dump_buf_data); 6747 _dump_buf_data_order = pagecnt; 6748 memset(_dump_buf_data, 0, 6749 ((1 << PAGE_SHIFT) << pagecnt)); 6750 break; 6751 } else 6752 --pagecnt; 6753 } 6754 if (!_dump_buf_data_order) 6755 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6756 "9044 BLKGRD: ERROR unable to allocate " 6757 "memory for hexdump\n"); 6758 } else 6759 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6760 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 6761 "\n", _dump_buf_data); 6762 if (!_dump_buf_dif) { 6763 while (pagecnt) { 6764 _dump_buf_dif = 6765 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 6766 if (_dump_buf_dif) { 6767 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6768 "9046 BLKGRD: allocated %d pages for " 6769 "_dump_buf_dif at 0x%p\n", 6770 (1 << pagecnt), _dump_buf_dif); 6771 _dump_buf_dif_order = pagecnt; 6772 memset(_dump_buf_dif, 0, 6773 ((1 << PAGE_SHIFT) << pagecnt)); 6774 break; 6775 } else 6776 --pagecnt; 6777 } 6778 if (!_dump_buf_dif_order) 6779 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6780 "9047 BLKGRD: ERROR unable to allocate " 6781 "memory for hexdump\n"); 6782 } else 6783 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6784 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 6785 _dump_buf_dif); 6786 } 6787 6788 /** 6789 * lpfc_post_init_setup - Perform necessary device post initialization setup. 6790 * @phba: pointer to lpfc hba data structure. 6791 * 6792 * This routine is invoked to perform all the necessary post initialization 6793 * setup for the device. 6794 **/ 6795 static void 6796 lpfc_post_init_setup(struct lpfc_hba *phba) 6797 { 6798 struct Scsi_Host *shost; 6799 struct lpfc_adapter_event_header adapter_event; 6800 6801 /* Get the default values for Model Name and Description */ 6802 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 6803 6804 /* 6805 * hba setup may have changed the hba_queue_depth so we need to 6806 * adjust the value of can_queue. 6807 */ 6808 shost = pci_get_drvdata(phba->pcidev); 6809 shost->can_queue = phba->cfg_hba_queue_depth - 10; 6810 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 6811 lpfc_setup_bg(phba, shost); 6812 6813 lpfc_host_attrib_init(shost); 6814 6815 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 6816 spin_lock_irq(shost->host_lock); 6817 lpfc_poll_start_timer(phba); 6818 spin_unlock_irq(shost->host_lock); 6819 } 6820 6821 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6822 "0428 Perform SCSI scan\n"); 6823 /* Send board arrival event to upper layer */ 6824 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 6825 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 6826 fc_host_post_vendor_event(shost, fc_get_event_number(), 6827 sizeof(adapter_event), 6828 (char *) &adapter_event, 6829 LPFC_NL_VENDOR_ID); 6830 return; 6831 } 6832 6833 /** 6834 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 6835 * @phba: pointer to lpfc hba data structure. 6836 * 6837 * This routine is invoked to set up the PCI device memory space for device 6838 * with SLI-3 interface spec. 6839 * 6840 * Return codes 6841 * 0 - successful 6842 * other values - error 6843 **/ 6844 static int 6845 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 6846 { 6847 struct pci_dev *pdev; 6848 unsigned long bar0map_len, bar2map_len; 6849 int i, hbq_count; 6850 void *ptr; 6851 int error = -ENODEV; 6852 6853 /* Obtain PCI device reference */ 6854 if (!phba->pcidev) 6855 return error; 6856 else 6857 pdev = phba->pcidev; 6858 6859 /* Set the device DMA mask size */ 6860 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6861 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6862 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6863 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6864 return error; 6865 } 6866 } 6867 6868 /* Get the bus address of Bar0 and Bar2 and the number of bytes 6869 * required by each mapping. 6870 */ 6871 phba->pci_bar0_map = pci_resource_start(pdev, 0); 6872 bar0map_len = pci_resource_len(pdev, 0); 6873 6874 phba->pci_bar2_map = pci_resource_start(pdev, 2); 6875 bar2map_len = pci_resource_len(pdev, 2); 6876 6877 /* Map HBA SLIM to a kernel virtual address. */ 6878 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 6879 if (!phba->slim_memmap_p) { 6880 dev_printk(KERN_ERR, &pdev->dev, 6881 "ioremap failed for SLIM memory.\n"); 6882 goto out; 6883 } 6884 6885 /* Map HBA Control Registers to a kernel virtual address. */ 6886 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 6887 if (!phba->ctrl_regs_memmap_p) { 6888 dev_printk(KERN_ERR, &pdev->dev, 6889 "ioremap failed for HBA control registers.\n"); 6890 goto out_iounmap_slim; 6891 } 6892 6893 /* Allocate memory for SLI-2 structures */ 6894 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6895 &phba->slim2p.phys, GFP_KERNEL); 6896 if (!phba->slim2p.virt) 6897 goto out_iounmap; 6898 6899 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 6900 phba->mbox_ext = (phba->slim2p.virt + 6901 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 6902 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 6903 phba->IOCBs = (phba->slim2p.virt + 6904 offsetof(struct lpfc_sli2_slim, IOCBs)); 6905 6906 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 6907 lpfc_sli_hbq_size(), 6908 &phba->hbqslimp.phys, 6909 GFP_KERNEL); 6910 if (!phba->hbqslimp.virt) 6911 goto out_free_slim; 6912 6913 hbq_count = lpfc_sli_hbq_count(); 6914 ptr = phba->hbqslimp.virt; 6915 for (i = 0; i < hbq_count; ++i) { 6916 phba->hbqs[i].hbq_virt = ptr; 6917 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 6918 ptr += (lpfc_hbq_defs[i]->entry_count * 6919 sizeof(struct lpfc_hbq_entry)); 6920 } 6921 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 6922 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 6923 6924 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 6925 6926 phba->MBslimaddr = phba->slim_memmap_p; 6927 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 6928 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 6929 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 6930 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 6931 6932 return 0; 6933 6934 out_free_slim: 6935 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6936 phba->slim2p.virt, phba->slim2p.phys); 6937 out_iounmap: 6938 iounmap(phba->ctrl_regs_memmap_p); 6939 out_iounmap_slim: 6940 iounmap(phba->slim_memmap_p); 6941 out: 6942 return error; 6943 } 6944 6945 /** 6946 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 6947 * @phba: pointer to lpfc hba data structure. 6948 * 6949 * This routine is invoked to unset the PCI device memory space for device 6950 * with SLI-3 interface spec. 6951 **/ 6952 static void 6953 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 6954 { 6955 struct pci_dev *pdev; 6956 6957 /* Obtain PCI device reference */ 6958 if (!phba->pcidev) 6959 return; 6960 else 6961 pdev = phba->pcidev; 6962 6963 /* Free coherent DMA memory allocated */ 6964 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 6965 phba->hbqslimp.virt, phba->hbqslimp.phys); 6966 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6967 phba->slim2p.virt, phba->slim2p.phys); 6968 6969 /* I/O memory unmap */ 6970 iounmap(phba->ctrl_regs_memmap_p); 6971 iounmap(phba->slim_memmap_p); 6972 6973 return; 6974 } 6975 6976 /** 6977 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 6978 * @phba: pointer to lpfc hba data structure. 6979 * 6980 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 6981 * done and check status. 6982 * 6983 * Return 0 if successful, otherwise -ENODEV. 6984 **/ 6985 int 6986 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 6987 { 6988 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 6989 struct lpfc_register reg_data; 6990 int i, port_error = 0; 6991 uint32_t if_type; 6992 6993 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 6994 memset(®_data, 0, sizeof(reg_data)); 6995 if (!phba->sli4_hba.PSMPHRregaddr) 6996 return -ENODEV; 6997 6998 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 6999 for (i = 0; i < 3000; i++) { 7000 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 7001 &portsmphr_reg.word0) || 7002 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 7003 /* Port has a fatal POST error, break out */ 7004 port_error = -ENODEV; 7005 break; 7006 } 7007 if (LPFC_POST_STAGE_PORT_READY == 7008 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 7009 break; 7010 msleep(10); 7011 } 7012 7013 /* 7014 * If there was a port error during POST, then don't proceed with 7015 * other register reads as the data may not be valid. Just exit. 7016 */ 7017 if (port_error) { 7018 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7019 "1408 Port Failed POST - portsmphr=0x%x, " 7020 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 7021 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 7022 portsmphr_reg.word0, 7023 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 7024 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 7025 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 7026 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 7027 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 7028 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 7029 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 7030 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 7031 } else { 7032 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7033 "2534 Device Info: SLIFamily=0x%x, " 7034 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 7035 "SLIHint_2=0x%x, FT=0x%x\n", 7036 bf_get(lpfc_sli_intf_sli_family, 7037 &phba->sli4_hba.sli_intf), 7038 bf_get(lpfc_sli_intf_slirev, 7039 &phba->sli4_hba.sli_intf), 7040 bf_get(lpfc_sli_intf_if_type, 7041 &phba->sli4_hba.sli_intf), 7042 bf_get(lpfc_sli_intf_sli_hint1, 7043 &phba->sli4_hba.sli_intf), 7044 bf_get(lpfc_sli_intf_sli_hint2, 7045 &phba->sli4_hba.sli_intf), 7046 bf_get(lpfc_sli_intf_func_type, 7047 &phba->sli4_hba.sli_intf)); 7048 /* 7049 * Check for other Port errors during the initialization 7050 * process. Fail the load if the port did not come up 7051 * correctly. 7052 */ 7053 if_type = bf_get(lpfc_sli_intf_if_type, 7054 &phba->sli4_hba.sli_intf); 7055 switch (if_type) { 7056 case LPFC_SLI_INTF_IF_TYPE_0: 7057 phba->sli4_hba.ue_mask_lo = 7058 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 7059 phba->sli4_hba.ue_mask_hi = 7060 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 7061 uerrlo_reg.word0 = 7062 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 7063 uerrhi_reg.word0 = 7064 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 7065 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 7066 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 7067 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7068 "1422 Unrecoverable Error " 7069 "Detected during POST " 7070 "uerr_lo_reg=0x%x, " 7071 "uerr_hi_reg=0x%x, " 7072 "ue_mask_lo_reg=0x%x, " 7073 "ue_mask_hi_reg=0x%x\n", 7074 uerrlo_reg.word0, 7075 uerrhi_reg.word0, 7076 phba->sli4_hba.ue_mask_lo, 7077 phba->sli4_hba.ue_mask_hi); 7078 port_error = -ENODEV; 7079 } 7080 break; 7081 case LPFC_SLI_INTF_IF_TYPE_2: 7082 /* Final checks. The port status should be clean. */ 7083 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 7084 ®_data.word0) || 7085 (bf_get(lpfc_sliport_status_err, ®_data) && 7086 !bf_get(lpfc_sliport_status_rn, ®_data))) { 7087 phba->work_status[0] = 7088 readl(phba->sli4_hba.u.if_type2. 7089 ERR1regaddr); 7090 phba->work_status[1] = 7091 readl(phba->sli4_hba.u.if_type2. 7092 ERR2regaddr); 7093 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7094 "2888 Unrecoverable port error " 7095 "following POST: port status reg " 7096 "0x%x, port_smphr reg 0x%x, " 7097 "error 1=0x%x, error 2=0x%x\n", 7098 reg_data.word0, 7099 portsmphr_reg.word0, 7100 phba->work_status[0], 7101 phba->work_status[1]); 7102 port_error = -ENODEV; 7103 } 7104 break; 7105 case LPFC_SLI_INTF_IF_TYPE_1: 7106 default: 7107 break; 7108 } 7109 } 7110 return port_error; 7111 } 7112 7113 /** 7114 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 7115 * @phba: pointer to lpfc hba data structure. 7116 * @if_type: The SLI4 interface type getting configured. 7117 * 7118 * This routine is invoked to set up SLI4 BAR0 PCI config space register 7119 * memory map. 7120 **/ 7121 static void 7122 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 7123 { 7124 switch (if_type) { 7125 case LPFC_SLI_INTF_IF_TYPE_0: 7126 phba->sli4_hba.u.if_type0.UERRLOregaddr = 7127 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 7128 phba->sli4_hba.u.if_type0.UERRHIregaddr = 7129 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 7130 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 7131 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 7132 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 7133 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 7134 phba->sli4_hba.SLIINTFregaddr = 7135 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7136 break; 7137 case LPFC_SLI_INTF_IF_TYPE_2: 7138 phba->sli4_hba.u.if_type2.ERR1regaddr = 7139 phba->sli4_hba.conf_regs_memmap_p + 7140 LPFC_CTL_PORT_ER1_OFFSET; 7141 phba->sli4_hba.u.if_type2.ERR2regaddr = 7142 phba->sli4_hba.conf_regs_memmap_p + 7143 LPFC_CTL_PORT_ER2_OFFSET; 7144 phba->sli4_hba.u.if_type2.CTRLregaddr = 7145 phba->sli4_hba.conf_regs_memmap_p + 7146 LPFC_CTL_PORT_CTL_OFFSET; 7147 phba->sli4_hba.u.if_type2.STATUSregaddr = 7148 phba->sli4_hba.conf_regs_memmap_p + 7149 LPFC_CTL_PORT_STA_OFFSET; 7150 phba->sli4_hba.SLIINTFregaddr = 7151 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7152 phba->sli4_hba.PSMPHRregaddr = 7153 phba->sli4_hba.conf_regs_memmap_p + 7154 LPFC_CTL_PORT_SEM_OFFSET; 7155 phba->sli4_hba.RQDBregaddr = 7156 phba->sli4_hba.conf_regs_memmap_p + 7157 LPFC_ULP0_RQ_DOORBELL; 7158 phba->sli4_hba.WQDBregaddr = 7159 phba->sli4_hba.conf_regs_memmap_p + 7160 LPFC_ULP0_WQ_DOORBELL; 7161 phba->sli4_hba.EQCQDBregaddr = 7162 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 7163 phba->sli4_hba.MQDBregaddr = 7164 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 7165 phba->sli4_hba.BMBXregaddr = 7166 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 7167 break; 7168 case LPFC_SLI_INTF_IF_TYPE_1: 7169 default: 7170 dev_printk(KERN_ERR, &phba->pcidev->dev, 7171 "FATAL - unsupported SLI4 interface type - %d\n", 7172 if_type); 7173 break; 7174 } 7175 } 7176 7177 /** 7178 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 7179 * @phba: pointer to lpfc hba data structure. 7180 * 7181 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 7182 * memory map. 7183 **/ 7184 static void 7185 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 7186 { 7187 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7188 LPFC_SLIPORT_IF0_SMPHR; 7189 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7190 LPFC_HST_ISR0; 7191 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7192 LPFC_HST_IMR0; 7193 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7194 LPFC_HST_ISCR0; 7195 } 7196 7197 /** 7198 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 7199 * @phba: pointer to lpfc hba data structure. 7200 * @vf: virtual function number 7201 * 7202 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 7203 * based on the given viftual function number, @vf. 7204 * 7205 * Return 0 if successful, otherwise -ENODEV. 7206 **/ 7207 static int 7208 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 7209 { 7210 if (vf > LPFC_VIR_FUNC_MAX) 7211 return -ENODEV; 7212 7213 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7214 vf * LPFC_VFR_PAGE_SIZE + 7215 LPFC_ULP0_RQ_DOORBELL); 7216 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7217 vf * LPFC_VFR_PAGE_SIZE + 7218 LPFC_ULP0_WQ_DOORBELL); 7219 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7220 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 7221 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7222 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 7223 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7224 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 7225 return 0; 7226 } 7227 7228 /** 7229 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 7230 * @phba: pointer to lpfc hba data structure. 7231 * 7232 * This routine is invoked to create the bootstrap mailbox 7233 * region consistent with the SLI-4 interface spec. This 7234 * routine allocates all memory necessary to communicate 7235 * mailbox commands to the port and sets up all alignment 7236 * needs. No locks are expected to be held when calling 7237 * this routine. 7238 * 7239 * Return codes 7240 * 0 - successful 7241 * -ENOMEM - could not allocated memory. 7242 **/ 7243 static int 7244 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 7245 { 7246 uint32_t bmbx_size; 7247 struct lpfc_dmabuf *dmabuf; 7248 struct dma_address *dma_address; 7249 uint32_t pa_addr; 7250 uint64_t phys_addr; 7251 7252 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 7253 if (!dmabuf) 7254 return -ENOMEM; 7255 7256 /* 7257 * The bootstrap mailbox region is comprised of 2 parts 7258 * plus an alignment restriction of 16 bytes. 7259 */ 7260 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 7261 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size, 7262 &dmabuf->phys, GFP_KERNEL); 7263 if (!dmabuf->virt) { 7264 kfree(dmabuf); 7265 return -ENOMEM; 7266 } 7267 7268 /* 7269 * Initialize the bootstrap mailbox pointers now so that the register 7270 * operations are simple later. The mailbox dma address is required 7271 * to be 16-byte aligned. Also align the virtual memory as each 7272 * maibox is copied into the bmbx mailbox region before issuing the 7273 * command to the port. 7274 */ 7275 phba->sli4_hba.bmbx.dmabuf = dmabuf; 7276 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 7277 7278 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 7279 LPFC_ALIGN_16_BYTE); 7280 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 7281 LPFC_ALIGN_16_BYTE); 7282 7283 /* 7284 * Set the high and low physical addresses now. The SLI4 alignment 7285 * requirement is 16 bytes and the mailbox is posted to the port 7286 * as two 30-bit addresses. The other data is a bit marking whether 7287 * the 30-bit address is the high or low address. 7288 * Upcast bmbx aphys to 64bits so shift instruction compiles 7289 * clean on 32 bit machines. 7290 */ 7291 dma_address = &phba->sli4_hba.bmbx.dma_address; 7292 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 7293 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 7294 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 7295 LPFC_BMBX_BIT1_ADDR_HI); 7296 7297 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 7298 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 7299 LPFC_BMBX_BIT1_ADDR_LO); 7300 return 0; 7301 } 7302 7303 /** 7304 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 7305 * @phba: pointer to lpfc hba data structure. 7306 * 7307 * This routine is invoked to teardown the bootstrap mailbox 7308 * region and release all host resources. This routine requires 7309 * the caller to ensure all mailbox commands recovered, no 7310 * additional mailbox comands are sent, and interrupts are disabled 7311 * before calling this routine. 7312 * 7313 **/ 7314 static void 7315 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 7316 { 7317 dma_free_coherent(&phba->pcidev->dev, 7318 phba->sli4_hba.bmbx.bmbx_size, 7319 phba->sli4_hba.bmbx.dmabuf->virt, 7320 phba->sli4_hba.bmbx.dmabuf->phys); 7321 7322 kfree(phba->sli4_hba.bmbx.dmabuf); 7323 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 7324 } 7325 7326 /** 7327 * lpfc_sli4_read_config - Get the config parameters. 7328 * @phba: pointer to lpfc hba data structure. 7329 * 7330 * This routine is invoked to read the configuration parameters from the HBA. 7331 * The configuration parameters are used to set the base and maximum values 7332 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 7333 * allocation for the port. 7334 * 7335 * Return codes 7336 * 0 - successful 7337 * -ENOMEM - No available memory 7338 * -EIO - The mailbox failed to complete successfully. 7339 **/ 7340 int 7341 lpfc_sli4_read_config(struct lpfc_hba *phba) 7342 { 7343 LPFC_MBOXQ_t *pmb; 7344 struct lpfc_mbx_read_config *rd_config; 7345 union lpfc_sli4_cfg_shdr *shdr; 7346 uint32_t shdr_status, shdr_add_status; 7347 struct lpfc_mbx_get_func_cfg *get_func_cfg; 7348 struct lpfc_rsrc_desc_fcfcoe *desc; 7349 char *pdesc_0; 7350 uint16_t forced_link_speed; 7351 uint32_t if_type; 7352 int length, i, rc = 0, rc2; 7353 7354 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7355 if (!pmb) { 7356 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7357 "2011 Unable to allocate memory for issuing " 7358 "SLI_CONFIG_SPECIAL mailbox command\n"); 7359 return -ENOMEM; 7360 } 7361 7362 lpfc_read_config(phba, pmb); 7363 7364 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7365 if (rc != MBX_SUCCESS) { 7366 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7367 "2012 Mailbox failed , mbxCmd x%x " 7368 "READ_CONFIG, mbxStatus x%x\n", 7369 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7370 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7371 rc = -EIO; 7372 } else { 7373 rd_config = &pmb->u.mqe.un.rd_config; 7374 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 7375 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 7376 phba->sli4_hba.lnk_info.lnk_tp = 7377 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 7378 phba->sli4_hba.lnk_info.lnk_no = 7379 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 7380 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7381 "3081 lnk_type:%d, lnk_numb:%d\n", 7382 phba->sli4_hba.lnk_info.lnk_tp, 7383 phba->sli4_hba.lnk_info.lnk_no); 7384 } else 7385 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 7386 "3082 Mailbox (x%x) returned ldv:x0\n", 7387 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 7388 phba->sli4_hba.extents_in_use = 7389 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 7390 phba->sli4_hba.max_cfg_param.max_xri = 7391 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 7392 phba->sli4_hba.max_cfg_param.xri_base = 7393 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 7394 phba->sli4_hba.max_cfg_param.max_vpi = 7395 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 7396 phba->sli4_hba.max_cfg_param.vpi_base = 7397 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 7398 phba->sli4_hba.max_cfg_param.max_rpi = 7399 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 7400 phba->sli4_hba.max_cfg_param.rpi_base = 7401 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 7402 phba->sli4_hba.max_cfg_param.max_vfi = 7403 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 7404 phba->sli4_hba.max_cfg_param.vfi_base = 7405 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 7406 phba->sli4_hba.max_cfg_param.max_fcfi = 7407 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 7408 phba->sli4_hba.max_cfg_param.max_eq = 7409 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 7410 phba->sli4_hba.max_cfg_param.max_rq = 7411 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 7412 phba->sli4_hba.max_cfg_param.max_wq = 7413 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 7414 phba->sli4_hba.max_cfg_param.max_cq = 7415 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 7416 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 7417 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 7418 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 7419 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 7420 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 7421 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 7422 phba->max_vports = phba->max_vpi; 7423 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7424 "2003 cfg params Extents? %d " 7425 "XRI(B:%d M:%d), " 7426 "VPI(B:%d M:%d) " 7427 "VFI(B:%d M:%d) " 7428 "RPI(B:%d M:%d) " 7429 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n", 7430 phba->sli4_hba.extents_in_use, 7431 phba->sli4_hba.max_cfg_param.xri_base, 7432 phba->sli4_hba.max_cfg_param.max_xri, 7433 phba->sli4_hba.max_cfg_param.vpi_base, 7434 phba->sli4_hba.max_cfg_param.max_vpi, 7435 phba->sli4_hba.max_cfg_param.vfi_base, 7436 phba->sli4_hba.max_cfg_param.max_vfi, 7437 phba->sli4_hba.max_cfg_param.rpi_base, 7438 phba->sli4_hba.max_cfg_param.max_rpi, 7439 phba->sli4_hba.max_cfg_param.max_fcfi, 7440 phba->sli4_hba.max_cfg_param.max_eq, 7441 phba->sli4_hba.max_cfg_param.max_cq, 7442 phba->sli4_hba.max_cfg_param.max_wq, 7443 phba->sli4_hba.max_cfg_param.max_rq); 7444 7445 } 7446 7447 if (rc) 7448 goto read_cfg_out; 7449 7450 /* Update link speed if forced link speed is supported */ 7451 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7452 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7453 forced_link_speed = 7454 bf_get(lpfc_mbx_rd_conf_link_speed, rd_config); 7455 if (forced_link_speed) { 7456 phba->hba_flag |= HBA_FORCED_LINK_SPEED; 7457 7458 switch (forced_link_speed) { 7459 case LINK_SPEED_1G: 7460 phba->cfg_link_speed = 7461 LPFC_USER_LINK_SPEED_1G; 7462 break; 7463 case LINK_SPEED_2G: 7464 phba->cfg_link_speed = 7465 LPFC_USER_LINK_SPEED_2G; 7466 break; 7467 case LINK_SPEED_4G: 7468 phba->cfg_link_speed = 7469 LPFC_USER_LINK_SPEED_4G; 7470 break; 7471 case LINK_SPEED_8G: 7472 phba->cfg_link_speed = 7473 LPFC_USER_LINK_SPEED_8G; 7474 break; 7475 case LINK_SPEED_10G: 7476 phba->cfg_link_speed = 7477 LPFC_USER_LINK_SPEED_10G; 7478 break; 7479 case LINK_SPEED_16G: 7480 phba->cfg_link_speed = 7481 LPFC_USER_LINK_SPEED_16G; 7482 break; 7483 case LINK_SPEED_32G: 7484 phba->cfg_link_speed = 7485 LPFC_USER_LINK_SPEED_32G; 7486 break; 7487 case 0xffff: 7488 phba->cfg_link_speed = 7489 LPFC_USER_LINK_SPEED_AUTO; 7490 break; 7491 default: 7492 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7493 "0047 Unrecognized link " 7494 "speed : %d\n", 7495 forced_link_speed); 7496 phba->cfg_link_speed = 7497 LPFC_USER_LINK_SPEED_AUTO; 7498 } 7499 } 7500 } 7501 7502 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 7503 length = phba->sli4_hba.max_cfg_param.max_xri - 7504 lpfc_sli4_get_els_iocb_cnt(phba); 7505 if (phba->cfg_hba_queue_depth > length) { 7506 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7507 "3361 HBA queue depth changed from %d to %d\n", 7508 phba->cfg_hba_queue_depth, length); 7509 phba->cfg_hba_queue_depth = length; 7510 } 7511 7512 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 7513 LPFC_SLI_INTF_IF_TYPE_2) 7514 goto read_cfg_out; 7515 7516 /* get the pf# and vf# for SLI4 if_type 2 port */ 7517 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 7518 sizeof(struct lpfc_sli4_cfg_mhdr)); 7519 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 7520 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 7521 length, LPFC_SLI4_MBX_EMBED); 7522 7523 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7524 shdr = (union lpfc_sli4_cfg_shdr *) 7525 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 7526 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7527 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7528 if (rc2 || shdr_status || shdr_add_status) { 7529 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7530 "3026 Mailbox failed , mbxCmd x%x " 7531 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 7532 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7533 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7534 goto read_cfg_out; 7535 } 7536 7537 /* search for fc_fcoe resrouce descriptor */ 7538 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 7539 7540 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 7541 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 7542 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 7543 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 7544 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 7545 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 7546 goto read_cfg_out; 7547 7548 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 7549 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 7550 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 7551 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 7552 phba->sli4_hba.iov.pf_number = 7553 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 7554 phba->sli4_hba.iov.vf_number = 7555 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 7556 break; 7557 } 7558 } 7559 7560 if (i < LPFC_RSRC_DESC_MAX_NUM) 7561 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7562 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 7563 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 7564 phba->sli4_hba.iov.vf_number); 7565 else 7566 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7567 "3028 GET_FUNCTION_CONFIG: failed to find " 7568 "Resrouce Descriptor:x%x\n", 7569 LPFC_RSRC_DESC_TYPE_FCFCOE); 7570 7571 read_cfg_out: 7572 mempool_free(pmb, phba->mbox_mem_pool); 7573 return rc; 7574 } 7575 7576 /** 7577 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 7578 * @phba: pointer to lpfc hba data structure. 7579 * 7580 * This routine is invoked to setup the port-side endian order when 7581 * the port if_type is 0. This routine has no function for other 7582 * if_types. 7583 * 7584 * Return codes 7585 * 0 - successful 7586 * -ENOMEM - No available memory 7587 * -EIO - The mailbox failed to complete successfully. 7588 **/ 7589 static int 7590 lpfc_setup_endian_order(struct lpfc_hba *phba) 7591 { 7592 LPFC_MBOXQ_t *mboxq; 7593 uint32_t if_type, rc = 0; 7594 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 7595 HOST_ENDIAN_HIGH_WORD1}; 7596 7597 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7598 switch (if_type) { 7599 case LPFC_SLI_INTF_IF_TYPE_0: 7600 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7601 GFP_KERNEL); 7602 if (!mboxq) { 7603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7604 "0492 Unable to allocate memory for " 7605 "issuing SLI_CONFIG_SPECIAL mailbox " 7606 "command\n"); 7607 return -ENOMEM; 7608 } 7609 7610 /* 7611 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 7612 * two words to contain special data values and no other data. 7613 */ 7614 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 7615 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 7616 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7617 if (rc != MBX_SUCCESS) { 7618 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7619 "0493 SLI_CONFIG_SPECIAL mailbox " 7620 "failed with status x%x\n", 7621 rc); 7622 rc = -EIO; 7623 } 7624 mempool_free(mboxq, phba->mbox_mem_pool); 7625 break; 7626 case LPFC_SLI_INTF_IF_TYPE_2: 7627 case LPFC_SLI_INTF_IF_TYPE_1: 7628 default: 7629 break; 7630 } 7631 return rc; 7632 } 7633 7634 /** 7635 * lpfc_sli4_queue_verify - Verify and update EQ counts 7636 * @phba: pointer to lpfc hba data structure. 7637 * 7638 * This routine is invoked to check the user settable queue counts for EQs. 7639 * After this routine is called the counts will be set to valid values that 7640 * adhere to the constraints of the system's interrupt vectors and the port's 7641 * queue resources. 7642 * 7643 * Return codes 7644 * 0 - successful 7645 * -ENOMEM - No available memory 7646 **/ 7647 static int 7648 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 7649 { 7650 int io_channel; 7651 int fof_vectors = phba->cfg_fof ? 1 : 0; 7652 7653 /* 7654 * Sanity check for configured queue parameters against the run-time 7655 * device parameters 7656 */ 7657 7658 /* Sanity check on HBA EQ parameters */ 7659 io_channel = phba->io_channel_irqs; 7660 7661 if (phba->sli4_hba.num_online_cpu < io_channel) { 7662 lpfc_printf_log(phba, 7663 KERN_ERR, LOG_INIT, 7664 "3188 Reducing IO channels to match number of " 7665 "online CPUs: from %d to %d\n", 7666 io_channel, phba->sli4_hba.num_online_cpu); 7667 io_channel = phba->sli4_hba.num_online_cpu; 7668 } 7669 7670 if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) { 7671 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7672 "2575 Reducing IO channels to match number of " 7673 "available EQs: from %d to %d\n", 7674 io_channel, 7675 phba->sli4_hba.max_cfg_param.max_eq); 7676 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors; 7677 } 7678 7679 /* The actual number of FCP / NVME event queues adopted */ 7680 if (io_channel != phba->io_channel_irqs) 7681 phba->io_channel_irqs = io_channel; 7682 if (phba->cfg_fcp_io_channel > io_channel) 7683 phba->cfg_fcp_io_channel = io_channel; 7684 if (phba->cfg_nvme_io_channel > io_channel) 7685 phba->cfg_nvme_io_channel = io_channel; 7686 if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq) 7687 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel; 7688 7689 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7690 "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n", 7691 phba->io_channel_irqs, phba->cfg_fcp_io_channel, 7692 phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq); 7693 7694 /* Get EQ depth from module parameter, fake the default for now */ 7695 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 7696 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 7697 7698 /* Get CQ depth from module parameter, fake the default for now */ 7699 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 7700 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 7701 return 0; 7702 } 7703 7704 static int 7705 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx) 7706 { 7707 struct lpfc_queue *qdesc; 7708 int cnt; 7709 7710 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7711 phba->sli4_hba.cq_ecount); 7712 if (!qdesc) { 7713 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7714 "0508 Failed allocate fast-path NVME CQ (%d)\n", 7715 wqidx); 7716 return 1; 7717 } 7718 phba->sli4_hba.nvme_cq[wqidx] = qdesc; 7719 7720 cnt = LPFC_NVME_WQSIZE; 7721 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_WQE128_SIZE, cnt); 7722 if (!qdesc) { 7723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7724 "0509 Failed allocate fast-path NVME WQ (%d)\n", 7725 wqidx); 7726 return 1; 7727 } 7728 phba->sli4_hba.nvme_wq[wqidx] = qdesc; 7729 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 7730 return 0; 7731 } 7732 7733 static int 7734 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx) 7735 { 7736 struct lpfc_queue *qdesc; 7737 uint32_t wqesize; 7738 7739 /* Create Fast Path FCP CQs */ 7740 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7741 phba->sli4_hba.cq_ecount); 7742 if (!qdesc) { 7743 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7744 "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx); 7745 return 1; 7746 } 7747 phba->sli4_hba.fcp_cq[wqidx] = qdesc; 7748 7749 /* Create Fast Path FCP WQs */ 7750 wqesize = (phba->fcp_embed_io) ? 7751 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 7752 qdesc = lpfc_sli4_queue_alloc(phba, wqesize, phba->sli4_hba.wq_ecount); 7753 if (!qdesc) { 7754 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7755 "0503 Failed allocate fast-path FCP WQ (%d)\n", 7756 wqidx); 7757 return 1; 7758 } 7759 phba->sli4_hba.fcp_wq[wqidx] = qdesc; 7760 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 7761 return 0; 7762 } 7763 7764 /** 7765 * lpfc_sli4_queue_create - Create all the SLI4 queues 7766 * @phba: pointer to lpfc hba data structure. 7767 * 7768 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 7769 * operation. For each SLI4 queue type, the parameters such as queue entry 7770 * count (queue depth) shall be taken from the module parameter. For now, 7771 * we just use some constant number as place holder. 7772 * 7773 * Return codes 7774 * 0 - successful 7775 * -ENOMEM - No availble memory 7776 * -EIO - The mailbox failed to complete successfully. 7777 **/ 7778 int 7779 lpfc_sli4_queue_create(struct lpfc_hba *phba) 7780 { 7781 struct lpfc_queue *qdesc; 7782 int idx, io_channel, max; 7783 7784 /* 7785 * Create HBA Record arrays. 7786 * Both NVME and FCP will share that same vectors / EQs 7787 */ 7788 io_channel = phba->io_channel_irqs; 7789 if (!io_channel) 7790 return -ERANGE; 7791 7792 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 7793 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 7794 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 7795 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 7796 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 7797 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 7798 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 7799 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 7800 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 7801 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 7802 7803 phba->sli4_hba.hba_eq = kcalloc(io_channel, 7804 sizeof(struct lpfc_queue *), 7805 GFP_KERNEL); 7806 if (!phba->sli4_hba.hba_eq) { 7807 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7808 "2576 Failed allocate memory for " 7809 "fast-path EQ record array\n"); 7810 goto out_error; 7811 } 7812 7813 if (phba->cfg_fcp_io_channel) { 7814 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel, 7815 sizeof(struct lpfc_queue *), 7816 GFP_KERNEL); 7817 if (!phba->sli4_hba.fcp_cq) { 7818 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7819 "2577 Failed allocate memory for " 7820 "fast-path CQ record array\n"); 7821 goto out_error; 7822 } 7823 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel, 7824 sizeof(struct lpfc_queue *), 7825 GFP_KERNEL); 7826 if (!phba->sli4_hba.fcp_wq) { 7827 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7828 "2578 Failed allocate memory for " 7829 "fast-path FCP WQ record array\n"); 7830 goto out_error; 7831 } 7832 /* 7833 * Since the first EQ can have multiple CQs associated with it, 7834 * this array is used to quickly see if we have a FCP fast-path 7835 * CQ match. 7836 */ 7837 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel, 7838 sizeof(uint16_t), 7839 GFP_KERNEL); 7840 if (!phba->sli4_hba.fcp_cq_map) { 7841 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7842 "2545 Failed allocate memory for " 7843 "fast-path CQ map\n"); 7844 goto out_error; 7845 } 7846 } 7847 7848 if (phba->cfg_nvme_io_channel) { 7849 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel, 7850 sizeof(struct lpfc_queue *), 7851 GFP_KERNEL); 7852 if (!phba->sli4_hba.nvme_cq) { 7853 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7854 "6077 Failed allocate memory for " 7855 "fast-path CQ record array\n"); 7856 goto out_error; 7857 } 7858 7859 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel, 7860 sizeof(struct lpfc_queue *), 7861 GFP_KERNEL); 7862 if (!phba->sli4_hba.nvme_wq) { 7863 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7864 "2581 Failed allocate memory for " 7865 "fast-path NVME WQ record array\n"); 7866 goto out_error; 7867 } 7868 7869 /* 7870 * Since the first EQ can have multiple CQs associated with it, 7871 * this array is used to quickly see if we have a NVME fast-path 7872 * CQ match. 7873 */ 7874 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel, 7875 sizeof(uint16_t), 7876 GFP_KERNEL); 7877 if (!phba->sli4_hba.nvme_cq_map) { 7878 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7879 "6078 Failed allocate memory for " 7880 "fast-path CQ map\n"); 7881 goto out_error; 7882 } 7883 7884 if (phba->nvmet_support) { 7885 phba->sli4_hba.nvmet_cqset = kcalloc( 7886 phba->cfg_nvmet_mrq, 7887 sizeof(struct lpfc_queue *), 7888 GFP_KERNEL); 7889 if (!phba->sli4_hba.nvmet_cqset) { 7890 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7891 "3121 Fail allocate memory for " 7892 "fast-path CQ set array\n"); 7893 goto out_error; 7894 } 7895 phba->sli4_hba.nvmet_mrq_hdr = kcalloc( 7896 phba->cfg_nvmet_mrq, 7897 sizeof(struct lpfc_queue *), 7898 GFP_KERNEL); 7899 if (!phba->sli4_hba.nvmet_mrq_hdr) { 7900 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7901 "3122 Fail allocate memory for " 7902 "fast-path RQ set hdr array\n"); 7903 goto out_error; 7904 } 7905 phba->sli4_hba.nvmet_mrq_data = kcalloc( 7906 phba->cfg_nvmet_mrq, 7907 sizeof(struct lpfc_queue *), 7908 GFP_KERNEL); 7909 if (!phba->sli4_hba.nvmet_mrq_data) { 7910 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7911 "3124 Fail allocate memory for " 7912 "fast-path RQ set data array\n"); 7913 goto out_error; 7914 } 7915 } 7916 } 7917 7918 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 7919 7920 /* Create HBA Event Queues (EQs) */ 7921 for (idx = 0; idx < io_channel; idx++) { 7922 /* Create EQs */ 7923 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 7924 phba->sli4_hba.eq_ecount); 7925 if (!qdesc) { 7926 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7927 "0497 Failed allocate EQ (%d)\n", idx); 7928 goto out_error; 7929 } 7930 phba->sli4_hba.hba_eq[idx] = qdesc; 7931 } 7932 7933 /* FCP and NVME io channels are not required to be balanced */ 7934 7935 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 7936 if (lpfc_alloc_fcp_wq_cq(phba, idx)) 7937 goto out_error; 7938 7939 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 7940 if (lpfc_alloc_nvme_wq_cq(phba, idx)) 7941 goto out_error; 7942 7943 /* allocate MRQ CQs */ 7944 max = phba->cfg_nvme_io_channel; 7945 if (max < phba->cfg_nvmet_mrq) 7946 max = phba->cfg_nvmet_mrq; 7947 7948 for (idx = 0; idx < max; idx++) 7949 if (lpfc_alloc_nvme_wq_cq(phba, idx)) 7950 goto out_error; 7951 7952 if (phba->nvmet_support) { 7953 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 7954 qdesc = lpfc_sli4_queue_alloc(phba, 7955 phba->sli4_hba.cq_esize, 7956 phba->sli4_hba.cq_ecount); 7957 if (!qdesc) { 7958 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7959 "3142 Failed allocate NVME " 7960 "CQ Set (%d)\n", idx); 7961 goto out_error; 7962 } 7963 phba->sli4_hba.nvmet_cqset[idx] = qdesc; 7964 } 7965 } 7966 7967 /* 7968 * Create Slow Path Completion Queues (CQs) 7969 */ 7970 7971 /* Create slow-path Mailbox Command Complete Queue */ 7972 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7973 phba->sli4_hba.cq_ecount); 7974 if (!qdesc) { 7975 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7976 "0500 Failed allocate slow-path mailbox CQ\n"); 7977 goto out_error; 7978 } 7979 phba->sli4_hba.mbx_cq = qdesc; 7980 7981 /* Create slow-path ELS Complete Queue */ 7982 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7983 phba->sli4_hba.cq_ecount); 7984 if (!qdesc) { 7985 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7986 "0501 Failed allocate slow-path ELS CQ\n"); 7987 goto out_error; 7988 } 7989 phba->sli4_hba.els_cq = qdesc; 7990 7991 7992 /* 7993 * Create Slow Path Work Queues (WQs) 7994 */ 7995 7996 /* Create Mailbox Command Queue */ 7997 7998 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 7999 phba->sli4_hba.mq_ecount); 8000 if (!qdesc) { 8001 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8002 "0505 Failed allocate slow-path MQ\n"); 8003 goto out_error; 8004 } 8005 phba->sli4_hba.mbx_wq = qdesc; 8006 8007 /* 8008 * Create ELS Work Queues 8009 */ 8010 8011 /* Create slow-path ELS Work Queue */ 8012 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 8013 phba->sli4_hba.wq_ecount); 8014 if (!qdesc) { 8015 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8016 "0504 Failed allocate slow-path ELS WQ\n"); 8017 goto out_error; 8018 } 8019 phba->sli4_hba.els_wq = qdesc; 8020 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8021 8022 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 8023 /* Create NVME LS Complete Queue */ 8024 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8025 phba->sli4_hba.cq_ecount); 8026 if (!qdesc) { 8027 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8028 "6079 Failed allocate NVME LS CQ\n"); 8029 goto out_error; 8030 } 8031 phba->sli4_hba.nvmels_cq = qdesc; 8032 8033 /* Create NVME LS Work Queue */ 8034 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 8035 phba->sli4_hba.wq_ecount); 8036 if (!qdesc) { 8037 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8038 "6080 Failed allocate NVME LS WQ\n"); 8039 goto out_error; 8040 } 8041 phba->sli4_hba.nvmels_wq = qdesc; 8042 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8043 } 8044 8045 /* 8046 * Create Receive Queue (RQ) 8047 */ 8048 8049 /* Create Receive Queue for header */ 8050 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 8051 phba->sli4_hba.rq_ecount); 8052 if (!qdesc) { 8053 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8054 "0506 Failed allocate receive HRQ\n"); 8055 goto out_error; 8056 } 8057 phba->sli4_hba.hdr_rq = qdesc; 8058 8059 /* Create Receive Queue for data */ 8060 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 8061 phba->sli4_hba.rq_ecount); 8062 if (!qdesc) { 8063 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8064 "0507 Failed allocate receive DRQ\n"); 8065 goto out_error; 8066 } 8067 phba->sli4_hba.dat_rq = qdesc; 8068 8069 if (phba->nvmet_support) { 8070 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8071 /* Create NVMET Receive Queue for header */ 8072 qdesc = lpfc_sli4_queue_alloc(phba, 8073 phba->sli4_hba.rq_esize, 8074 phba->sli4_hba.rq_ecount); 8075 if (!qdesc) { 8076 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8077 "3146 Failed allocate " 8078 "receive HRQ\n"); 8079 goto out_error; 8080 } 8081 phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc; 8082 8083 /* Only needed for header of RQ pair */ 8084 qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb), 8085 GFP_KERNEL); 8086 if (qdesc->rqbp == NULL) { 8087 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8088 "6131 Failed allocate " 8089 "Header RQBP\n"); 8090 goto out_error; 8091 } 8092 8093 /* Create NVMET Receive Queue for data */ 8094 qdesc = lpfc_sli4_queue_alloc(phba, 8095 phba->sli4_hba.rq_esize, 8096 phba->sli4_hba.rq_ecount); 8097 if (!qdesc) { 8098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8099 "3156 Failed allocate " 8100 "receive DRQ\n"); 8101 goto out_error; 8102 } 8103 phba->sli4_hba.nvmet_mrq_data[idx] = qdesc; 8104 } 8105 } 8106 8107 /* Create the Queues needed for Flash Optimized Fabric operations */ 8108 if (phba->cfg_fof) 8109 lpfc_fof_queue_create(phba); 8110 return 0; 8111 8112 out_error: 8113 lpfc_sli4_queue_destroy(phba); 8114 return -ENOMEM; 8115 } 8116 8117 static inline void 8118 __lpfc_sli4_release_queue(struct lpfc_queue **qp) 8119 { 8120 if (*qp != NULL) { 8121 lpfc_sli4_queue_free(*qp); 8122 *qp = NULL; 8123 } 8124 } 8125 8126 static inline void 8127 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max) 8128 { 8129 int idx; 8130 8131 if (*qs == NULL) 8132 return; 8133 8134 for (idx = 0; idx < max; idx++) 8135 __lpfc_sli4_release_queue(&(*qs)[idx]); 8136 8137 kfree(*qs); 8138 *qs = NULL; 8139 } 8140 8141 static inline void 8142 lpfc_sli4_release_queue_map(uint16_t **qmap) 8143 { 8144 if (*qmap != NULL) { 8145 kfree(*qmap); 8146 *qmap = NULL; 8147 } 8148 } 8149 8150 /** 8151 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 8152 * @phba: pointer to lpfc hba data structure. 8153 * 8154 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 8155 * operation. 8156 * 8157 * Return codes 8158 * 0 - successful 8159 * -ENOMEM - No available memory 8160 * -EIO - The mailbox failed to complete successfully. 8161 **/ 8162 void 8163 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 8164 { 8165 if (phba->cfg_fof) 8166 lpfc_fof_queue_destroy(phba); 8167 8168 /* Release HBA eqs */ 8169 lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs); 8170 8171 /* Release FCP cqs */ 8172 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq, 8173 phba->cfg_fcp_io_channel); 8174 8175 /* Release FCP wqs */ 8176 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq, 8177 phba->cfg_fcp_io_channel); 8178 8179 /* Release FCP CQ mapping array */ 8180 lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map); 8181 8182 /* Release NVME cqs */ 8183 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq, 8184 phba->cfg_nvme_io_channel); 8185 8186 /* Release NVME wqs */ 8187 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq, 8188 phba->cfg_nvme_io_channel); 8189 8190 /* Release NVME CQ mapping array */ 8191 lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map); 8192 8193 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset, 8194 phba->cfg_nvmet_mrq); 8195 8196 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr, 8197 phba->cfg_nvmet_mrq); 8198 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data, 8199 phba->cfg_nvmet_mrq); 8200 8201 /* Release mailbox command work queue */ 8202 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq); 8203 8204 /* Release ELS work queue */ 8205 __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq); 8206 8207 /* Release ELS work queue */ 8208 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq); 8209 8210 /* Release unsolicited receive queue */ 8211 __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq); 8212 __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq); 8213 8214 /* Release ELS complete queue */ 8215 __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq); 8216 8217 /* Release NVME LS complete queue */ 8218 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq); 8219 8220 /* Release mailbox command complete queue */ 8221 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq); 8222 8223 /* Everything on this list has been freed */ 8224 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8225 } 8226 8227 int 8228 lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq, 8229 struct lpfc_queue *drq, int count) 8230 { 8231 int rc, i; 8232 struct lpfc_rqe hrqe; 8233 struct lpfc_rqe drqe; 8234 struct lpfc_rqb *rqbp; 8235 struct rqb_dmabuf *rqb_buffer; 8236 LIST_HEAD(rqb_buf_list); 8237 8238 rqbp = hrq->rqbp; 8239 for (i = 0; i < count; i++) { 8240 rqb_buffer = (rqbp->rqb_alloc_buffer)(phba); 8241 if (!rqb_buffer) 8242 break; 8243 rqb_buffer->hrq = hrq; 8244 rqb_buffer->drq = drq; 8245 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list); 8246 } 8247 while (!list_empty(&rqb_buf_list)) { 8248 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf, 8249 hbuf.list); 8250 8251 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys); 8252 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys); 8253 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys); 8254 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys); 8255 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe); 8256 if (rc < 0) { 8257 (rqbp->rqb_free_buffer)(phba, rqb_buffer); 8258 } else { 8259 list_add_tail(&rqb_buffer->hbuf.list, 8260 &rqbp->rqb_buffer_list); 8261 rqbp->buffer_count++; 8262 } 8263 } 8264 return 1; 8265 } 8266 8267 int 8268 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq) 8269 { 8270 struct lpfc_rqb *rqbp; 8271 struct lpfc_dmabuf *h_buf; 8272 struct rqb_dmabuf *rqb_buffer; 8273 8274 rqbp = rq->rqbp; 8275 while (!list_empty(&rqbp->rqb_buffer_list)) { 8276 list_remove_head(&rqbp->rqb_buffer_list, h_buf, 8277 struct lpfc_dmabuf, list); 8278 8279 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf); 8280 (rqbp->rqb_free_buffer)(phba, rqb_buffer); 8281 rqbp->buffer_count--; 8282 } 8283 return 1; 8284 } 8285 8286 static int 8287 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq, 8288 struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map, 8289 int qidx, uint32_t qtype) 8290 { 8291 struct lpfc_sli_ring *pring; 8292 int rc; 8293 8294 if (!eq || !cq || !wq) { 8295 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8296 "6085 Fast-path %s (%d) not allocated\n", 8297 ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx); 8298 return -ENOMEM; 8299 } 8300 8301 /* create the Cq first */ 8302 rc = lpfc_cq_create(phba, cq, eq, 8303 (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype); 8304 if (rc) { 8305 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8306 "6086 Failed setup of CQ (%d), rc = 0x%x\n", 8307 qidx, (uint32_t)rc); 8308 return rc; 8309 } 8310 8311 if (qtype != LPFC_MBOX) { 8312 /* Setup nvme_cq_map for fast lookup */ 8313 if (cq_map) 8314 *cq_map = cq->queue_id; 8315 8316 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8317 "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n", 8318 qidx, cq->queue_id, qidx, eq->queue_id); 8319 8320 /* create the wq */ 8321 rc = lpfc_wq_create(phba, wq, cq, qtype); 8322 if (rc) { 8323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8324 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n", 8325 qidx, (uint32_t)rc); 8326 /* no need to tear down cq - caller will do so */ 8327 return rc; 8328 } 8329 8330 /* Bind this CQ/WQ to the NVME ring */ 8331 pring = wq->pring; 8332 pring->sli.sli4.wqp = (void *)wq; 8333 cq->pring = pring; 8334 8335 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8336 "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n", 8337 qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id); 8338 } else { 8339 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX); 8340 if (rc) { 8341 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8342 "0539 Failed setup of slow-path MQ: " 8343 "rc = 0x%x\n", rc); 8344 /* no need to tear down cq - caller will do so */ 8345 return rc; 8346 } 8347 8348 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8349 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 8350 phba->sli4_hba.mbx_wq->queue_id, 8351 phba->sli4_hba.mbx_cq->queue_id); 8352 } 8353 8354 return 0; 8355 } 8356 8357 /** 8358 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 8359 * @phba: pointer to lpfc hba data structure. 8360 * 8361 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 8362 * operation. 8363 * 8364 * Return codes 8365 * 0 - successful 8366 * -ENOMEM - No available memory 8367 * -EIO - The mailbox failed to complete successfully. 8368 **/ 8369 int 8370 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 8371 { 8372 uint32_t shdr_status, shdr_add_status; 8373 union lpfc_sli4_cfg_shdr *shdr; 8374 LPFC_MBOXQ_t *mboxq; 8375 int qidx; 8376 uint32_t length, io_channel; 8377 int rc = -ENOMEM; 8378 8379 /* Check for dual-ULP support */ 8380 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 8381 if (!mboxq) { 8382 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8383 "3249 Unable to allocate memory for " 8384 "QUERY_FW_CFG mailbox command\n"); 8385 return -ENOMEM; 8386 } 8387 length = (sizeof(struct lpfc_mbx_query_fw_config) - 8388 sizeof(struct lpfc_sli4_cfg_mhdr)); 8389 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8390 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 8391 length, LPFC_SLI4_MBX_EMBED); 8392 8393 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8394 8395 shdr = (union lpfc_sli4_cfg_shdr *) 8396 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 8397 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 8398 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 8399 if (shdr_status || shdr_add_status || rc) { 8400 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8401 "3250 QUERY_FW_CFG mailbox failed with status " 8402 "x%x add_status x%x, mbx status x%x\n", 8403 shdr_status, shdr_add_status, rc); 8404 if (rc != MBX_TIMEOUT) 8405 mempool_free(mboxq, phba->mbox_mem_pool); 8406 rc = -ENXIO; 8407 goto out_error; 8408 } 8409 8410 phba->sli4_hba.fw_func_mode = 8411 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; 8412 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; 8413 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; 8414 phba->sli4_hba.physical_port = 8415 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port; 8416 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8417 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " 8418 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, 8419 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); 8420 8421 if (rc != MBX_TIMEOUT) 8422 mempool_free(mboxq, phba->mbox_mem_pool); 8423 8424 /* 8425 * Set up HBA Event Queues (EQs) 8426 */ 8427 io_channel = phba->io_channel_irqs; 8428 8429 /* Set up HBA event queue */ 8430 if (io_channel && !phba->sli4_hba.hba_eq) { 8431 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8432 "3147 Fast-path EQs not allocated\n"); 8433 rc = -ENOMEM; 8434 goto out_error; 8435 } 8436 for (qidx = 0; qidx < io_channel; qidx++) { 8437 if (!phba->sli4_hba.hba_eq[qidx]) { 8438 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8439 "0522 Fast-path EQ (%d) not " 8440 "allocated\n", qidx); 8441 rc = -ENOMEM; 8442 goto out_destroy; 8443 } 8444 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx], 8445 phba->cfg_fcp_imax); 8446 if (rc) { 8447 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8448 "0523 Failed setup of fast-path EQ " 8449 "(%d), rc = 0x%x\n", qidx, 8450 (uint32_t)rc); 8451 goto out_destroy; 8452 } 8453 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8454 "2584 HBA EQ setup: queue[%d]-id=%d\n", 8455 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id); 8456 } 8457 8458 if (phba->cfg_nvme_io_channel) { 8459 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) { 8460 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8461 "6084 Fast-path NVME %s array not allocated\n", 8462 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ"); 8463 rc = -ENOMEM; 8464 goto out_destroy; 8465 } 8466 8467 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 8468 rc = lpfc_create_wq_cq(phba, 8469 phba->sli4_hba.hba_eq[ 8470 qidx % io_channel], 8471 phba->sli4_hba.nvme_cq[qidx], 8472 phba->sli4_hba.nvme_wq[qidx], 8473 &phba->sli4_hba.nvme_cq_map[qidx], 8474 qidx, LPFC_NVME); 8475 if (rc) { 8476 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8477 "6123 Failed to setup fastpath " 8478 "NVME WQ/CQ (%d), rc = 0x%x\n", 8479 qidx, (uint32_t)rc); 8480 goto out_destroy; 8481 } 8482 } 8483 } 8484 8485 if (phba->cfg_fcp_io_channel) { 8486 /* Set up fast-path FCP Response Complete Queue */ 8487 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) { 8488 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8489 "3148 Fast-path FCP %s array not allocated\n", 8490 phba->sli4_hba.fcp_cq ? "WQ" : "CQ"); 8491 rc = -ENOMEM; 8492 goto out_destroy; 8493 } 8494 8495 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 8496 rc = lpfc_create_wq_cq(phba, 8497 phba->sli4_hba.hba_eq[ 8498 qidx % io_channel], 8499 phba->sli4_hba.fcp_cq[qidx], 8500 phba->sli4_hba.fcp_wq[qidx], 8501 &phba->sli4_hba.fcp_cq_map[qidx], 8502 qidx, LPFC_FCP); 8503 if (rc) { 8504 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8505 "0535 Failed to setup fastpath " 8506 "FCP WQ/CQ (%d), rc = 0x%x\n", 8507 qidx, (uint32_t)rc); 8508 goto out_destroy; 8509 } 8510 } 8511 } 8512 8513 /* 8514 * Set up Slow Path Complete Queues (CQs) 8515 */ 8516 8517 /* Set up slow-path MBOX CQ/MQ */ 8518 8519 if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) { 8520 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8521 "0528 %s not allocated\n", 8522 phba->sli4_hba.mbx_cq ? 8523 "Mailbox WQ" : "Mailbox CQ"); 8524 rc = -ENOMEM; 8525 goto out_destroy; 8526 } 8527 8528 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8529 phba->sli4_hba.mbx_cq, 8530 phba->sli4_hba.mbx_wq, 8531 NULL, 0, LPFC_MBOX); 8532 if (rc) { 8533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8534 "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n", 8535 (uint32_t)rc); 8536 goto out_destroy; 8537 } 8538 if (phba->nvmet_support) { 8539 if (!phba->sli4_hba.nvmet_cqset) { 8540 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8541 "3165 Fast-path NVME CQ Set " 8542 "array not allocated\n"); 8543 rc = -ENOMEM; 8544 goto out_destroy; 8545 } 8546 if (phba->cfg_nvmet_mrq > 1) { 8547 rc = lpfc_cq_create_set(phba, 8548 phba->sli4_hba.nvmet_cqset, 8549 phba->sli4_hba.hba_eq, 8550 LPFC_WCQ, LPFC_NVMET); 8551 if (rc) { 8552 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8553 "3164 Failed setup of NVME CQ " 8554 "Set, rc = 0x%x\n", 8555 (uint32_t)rc); 8556 goto out_destroy; 8557 } 8558 } else { 8559 /* Set up NVMET Receive Complete Queue */ 8560 rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0], 8561 phba->sli4_hba.hba_eq[0], 8562 LPFC_WCQ, LPFC_NVMET); 8563 if (rc) { 8564 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8565 "6089 Failed setup NVMET CQ: " 8566 "rc = 0x%x\n", (uint32_t)rc); 8567 goto out_destroy; 8568 } 8569 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8570 "6090 NVMET CQ setup: cq-id=%d, " 8571 "parent eq-id=%d\n", 8572 phba->sli4_hba.nvmet_cqset[0]->queue_id, 8573 phba->sli4_hba.hba_eq[0]->queue_id); 8574 } 8575 } 8576 8577 /* Set up slow-path ELS WQ/CQ */ 8578 if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) { 8579 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8580 "0530 ELS %s not allocated\n", 8581 phba->sli4_hba.els_cq ? "WQ" : "CQ"); 8582 rc = -ENOMEM; 8583 goto out_destroy; 8584 } 8585 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8586 phba->sli4_hba.els_cq, 8587 phba->sli4_hba.els_wq, 8588 NULL, 0, LPFC_ELS); 8589 if (rc) { 8590 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8591 "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n", 8592 (uint32_t)rc); 8593 goto out_destroy; 8594 } 8595 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8596 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 8597 phba->sli4_hba.els_wq->queue_id, 8598 phba->sli4_hba.els_cq->queue_id); 8599 8600 if (phba->cfg_nvme_io_channel) { 8601 /* Set up NVME LS Complete Queue */ 8602 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) { 8603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8604 "6091 LS %s not allocated\n", 8605 phba->sli4_hba.nvmels_cq ? "WQ" : "CQ"); 8606 rc = -ENOMEM; 8607 goto out_destroy; 8608 } 8609 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8610 phba->sli4_hba.nvmels_cq, 8611 phba->sli4_hba.nvmels_wq, 8612 NULL, 0, LPFC_NVME_LS); 8613 if (rc) { 8614 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8615 "0529 Failed setup of NVVME LS WQ/CQ: " 8616 "rc = 0x%x\n", (uint32_t)rc); 8617 goto out_destroy; 8618 } 8619 8620 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8621 "6096 ELS WQ setup: wq-id=%d, " 8622 "parent cq-id=%d\n", 8623 phba->sli4_hba.nvmels_wq->queue_id, 8624 phba->sli4_hba.nvmels_cq->queue_id); 8625 } 8626 8627 /* 8628 * Create NVMET Receive Queue (RQ) 8629 */ 8630 if (phba->nvmet_support) { 8631 if ((!phba->sli4_hba.nvmet_cqset) || 8632 (!phba->sli4_hba.nvmet_mrq_hdr) || 8633 (!phba->sli4_hba.nvmet_mrq_data)) { 8634 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8635 "6130 MRQ CQ Queues not " 8636 "allocated\n"); 8637 rc = -ENOMEM; 8638 goto out_destroy; 8639 } 8640 if (phba->cfg_nvmet_mrq > 1) { 8641 rc = lpfc_mrq_create(phba, 8642 phba->sli4_hba.nvmet_mrq_hdr, 8643 phba->sli4_hba.nvmet_mrq_data, 8644 phba->sli4_hba.nvmet_cqset, 8645 LPFC_NVMET); 8646 if (rc) { 8647 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8648 "6098 Failed setup of NVMET " 8649 "MRQ: rc = 0x%x\n", 8650 (uint32_t)rc); 8651 goto out_destroy; 8652 } 8653 8654 } else { 8655 rc = lpfc_rq_create(phba, 8656 phba->sli4_hba.nvmet_mrq_hdr[0], 8657 phba->sli4_hba.nvmet_mrq_data[0], 8658 phba->sli4_hba.nvmet_cqset[0], 8659 LPFC_NVMET); 8660 if (rc) { 8661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8662 "6057 Failed setup of NVMET " 8663 "Receive Queue: rc = 0x%x\n", 8664 (uint32_t)rc); 8665 goto out_destroy; 8666 } 8667 8668 lpfc_printf_log( 8669 phba, KERN_INFO, LOG_INIT, 8670 "6099 NVMET RQ setup: hdr-rq-id=%d, " 8671 "dat-rq-id=%d parent cq-id=%d\n", 8672 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id, 8673 phba->sli4_hba.nvmet_mrq_data[0]->queue_id, 8674 phba->sli4_hba.nvmet_cqset[0]->queue_id); 8675 8676 } 8677 } 8678 8679 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 8680 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8681 "0540 Receive Queue not allocated\n"); 8682 rc = -ENOMEM; 8683 goto out_destroy; 8684 } 8685 8686 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ); 8687 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ); 8688 8689 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 8690 phba->sli4_hba.els_cq, LPFC_USOL); 8691 if (rc) { 8692 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8693 "0541 Failed setup of Receive Queue: " 8694 "rc = 0x%x\n", (uint32_t)rc); 8695 goto out_destroy; 8696 } 8697 8698 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8699 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 8700 "parent cq-id=%d\n", 8701 phba->sli4_hba.hdr_rq->queue_id, 8702 phba->sli4_hba.dat_rq->queue_id, 8703 phba->sli4_hba.els_cq->queue_id); 8704 8705 if (phba->cfg_fof) { 8706 rc = lpfc_fof_queue_setup(phba); 8707 if (rc) { 8708 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8709 "0549 Failed setup of FOF Queues: " 8710 "rc = 0x%x\n", rc); 8711 goto out_destroy; 8712 } 8713 } 8714 8715 /* 8716 * Configure EQ delay multipier for interrupt coalescing using 8717 * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time. 8718 */ 8719 for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY) 8720 lpfc_modify_hba_eq_delay(phba, qidx); 8721 return 0; 8722 8723 out_destroy: 8724 lpfc_sli4_queue_unset(phba); 8725 out_error: 8726 return rc; 8727 } 8728 8729 /** 8730 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 8731 * @phba: pointer to lpfc hba data structure. 8732 * 8733 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 8734 * operation. 8735 * 8736 * Return codes 8737 * 0 - successful 8738 * -ENOMEM - No available memory 8739 * -EIO - The mailbox failed to complete successfully. 8740 **/ 8741 void 8742 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 8743 { 8744 int qidx; 8745 8746 /* Unset the queues created for Flash Optimized Fabric operations */ 8747 if (phba->cfg_fof) 8748 lpfc_fof_queue_destroy(phba); 8749 8750 /* Unset mailbox command work queue */ 8751 if (phba->sli4_hba.mbx_wq) 8752 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 8753 8754 /* Unset NVME LS work queue */ 8755 if (phba->sli4_hba.nvmels_wq) 8756 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq); 8757 8758 /* Unset ELS work queue */ 8759 if (phba->sli4_hba.els_cq) 8760 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 8761 8762 /* Unset unsolicited receive queue */ 8763 if (phba->sli4_hba.hdr_rq) 8764 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, 8765 phba->sli4_hba.dat_rq); 8766 8767 /* Unset FCP work queue */ 8768 if (phba->sli4_hba.fcp_wq) 8769 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 8770 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]); 8771 8772 /* Unset NVME work queue */ 8773 if (phba->sli4_hba.nvme_wq) { 8774 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 8775 lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]); 8776 } 8777 8778 /* Unset mailbox command complete queue */ 8779 if (phba->sli4_hba.mbx_cq) 8780 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 8781 8782 /* Unset ELS complete queue */ 8783 if (phba->sli4_hba.els_cq) 8784 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 8785 8786 /* Unset NVME LS complete queue */ 8787 if (phba->sli4_hba.nvmels_cq) 8788 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq); 8789 8790 /* Unset NVME response complete queue */ 8791 if (phba->sli4_hba.nvme_cq) 8792 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 8793 lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]); 8794 8795 /* Unset NVMET MRQ queue */ 8796 if (phba->sli4_hba.nvmet_mrq_hdr) { 8797 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 8798 lpfc_rq_destroy(phba, 8799 phba->sli4_hba.nvmet_mrq_hdr[qidx], 8800 phba->sli4_hba.nvmet_mrq_data[qidx]); 8801 } 8802 8803 /* Unset NVMET CQ Set complete queue */ 8804 if (phba->sli4_hba.nvmet_cqset) { 8805 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 8806 lpfc_cq_destroy(phba, 8807 phba->sli4_hba.nvmet_cqset[qidx]); 8808 } 8809 8810 /* Unset FCP response complete queue */ 8811 if (phba->sli4_hba.fcp_cq) 8812 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 8813 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]); 8814 8815 /* Unset fast-path event queue */ 8816 if (phba->sli4_hba.hba_eq) 8817 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) 8818 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]); 8819 } 8820 8821 /** 8822 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 8823 * @phba: pointer to lpfc hba data structure. 8824 * 8825 * This routine is invoked to allocate and set up a pool of completion queue 8826 * events. The body of the completion queue event is a completion queue entry 8827 * CQE. For now, this pool is used for the interrupt service routine to queue 8828 * the following HBA completion queue events for the worker thread to process: 8829 * - Mailbox asynchronous events 8830 * - Receive queue completion unsolicited events 8831 * Later, this can be used for all the slow-path events. 8832 * 8833 * Return codes 8834 * 0 - successful 8835 * -ENOMEM - No available memory 8836 **/ 8837 static int 8838 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 8839 { 8840 struct lpfc_cq_event *cq_event; 8841 int i; 8842 8843 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 8844 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 8845 if (!cq_event) 8846 goto out_pool_create_fail; 8847 list_add_tail(&cq_event->list, 8848 &phba->sli4_hba.sp_cqe_event_pool); 8849 } 8850 return 0; 8851 8852 out_pool_create_fail: 8853 lpfc_sli4_cq_event_pool_destroy(phba); 8854 return -ENOMEM; 8855 } 8856 8857 /** 8858 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 8859 * @phba: pointer to lpfc hba data structure. 8860 * 8861 * This routine is invoked to free the pool of completion queue events at 8862 * driver unload time. Note that, it is the responsibility of the driver 8863 * cleanup routine to free all the outstanding completion-queue events 8864 * allocated from this pool back into the pool before invoking this routine 8865 * to destroy the pool. 8866 **/ 8867 static void 8868 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 8869 { 8870 struct lpfc_cq_event *cq_event, *next_cq_event; 8871 8872 list_for_each_entry_safe(cq_event, next_cq_event, 8873 &phba->sli4_hba.sp_cqe_event_pool, list) { 8874 list_del(&cq_event->list); 8875 kfree(cq_event); 8876 } 8877 } 8878 8879 /** 8880 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 8881 * @phba: pointer to lpfc hba data structure. 8882 * 8883 * This routine is the lock free version of the API invoked to allocate a 8884 * completion-queue event from the free pool. 8885 * 8886 * Return: Pointer to the newly allocated completion-queue event if successful 8887 * NULL otherwise. 8888 **/ 8889 struct lpfc_cq_event * 8890 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 8891 { 8892 struct lpfc_cq_event *cq_event = NULL; 8893 8894 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 8895 struct lpfc_cq_event, list); 8896 return cq_event; 8897 } 8898 8899 /** 8900 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 8901 * @phba: pointer to lpfc hba data structure. 8902 * 8903 * This routine is the lock version of the API invoked to allocate a 8904 * completion-queue event from the free pool. 8905 * 8906 * Return: Pointer to the newly allocated completion-queue event if successful 8907 * NULL otherwise. 8908 **/ 8909 struct lpfc_cq_event * 8910 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 8911 { 8912 struct lpfc_cq_event *cq_event; 8913 unsigned long iflags; 8914 8915 spin_lock_irqsave(&phba->hbalock, iflags); 8916 cq_event = __lpfc_sli4_cq_event_alloc(phba); 8917 spin_unlock_irqrestore(&phba->hbalock, iflags); 8918 return cq_event; 8919 } 8920 8921 /** 8922 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 8923 * @phba: pointer to lpfc hba data structure. 8924 * @cq_event: pointer to the completion queue event to be freed. 8925 * 8926 * This routine is the lock free version of the API invoked to release a 8927 * completion-queue event back into the free pool. 8928 **/ 8929 void 8930 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 8931 struct lpfc_cq_event *cq_event) 8932 { 8933 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 8934 } 8935 8936 /** 8937 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 8938 * @phba: pointer to lpfc hba data structure. 8939 * @cq_event: pointer to the completion queue event to be freed. 8940 * 8941 * This routine is the lock version of the API invoked to release a 8942 * completion-queue event back into the free pool. 8943 **/ 8944 void 8945 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 8946 struct lpfc_cq_event *cq_event) 8947 { 8948 unsigned long iflags; 8949 spin_lock_irqsave(&phba->hbalock, iflags); 8950 __lpfc_sli4_cq_event_release(phba, cq_event); 8951 spin_unlock_irqrestore(&phba->hbalock, iflags); 8952 } 8953 8954 /** 8955 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 8956 * @phba: pointer to lpfc hba data structure. 8957 * 8958 * This routine is to free all the pending completion-queue events to the 8959 * back into the free pool for device reset. 8960 **/ 8961 static void 8962 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 8963 { 8964 LIST_HEAD(cqelist); 8965 struct lpfc_cq_event *cqe; 8966 unsigned long iflags; 8967 8968 /* Retrieve all the pending WCQEs from pending WCQE lists */ 8969 spin_lock_irqsave(&phba->hbalock, iflags); 8970 /* Pending FCP XRI abort events */ 8971 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 8972 &cqelist); 8973 /* Pending ELS XRI abort events */ 8974 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 8975 &cqelist); 8976 /* Pending asynnc events */ 8977 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 8978 &cqelist); 8979 spin_unlock_irqrestore(&phba->hbalock, iflags); 8980 8981 while (!list_empty(&cqelist)) { 8982 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 8983 lpfc_sli4_cq_event_release(phba, cqe); 8984 } 8985 } 8986 8987 /** 8988 * lpfc_pci_function_reset - Reset pci function. 8989 * @phba: pointer to lpfc hba data structure. 8990 * 8991 * This routine is invoked to request a PCI function reset. It will destroys 8992 * all resources assigned to the PCI function which originates this request. 8993 * 8994 * Return codes 8995 * 0 - successful 8996 * -ENOMEM - No available memory 8997 * -EIO - The mailbox failed to complete successfully. 8998 **/ 8999 int 9000 lpfc_pci_function_reset(struct lpfc_hba *phba) 9001 { 9002 LPFC_MBOXQ_t *mboxq; 9003 uint32_t rc = 0, if_type; 9004 uint32_t shdr_status, shdr_add_status; 9005 uint32_t rdy_chk; 9006 uint32_t port_reset = 0; 9007 union lpfc_sli4_cfg_shdr *shdr; 9008 struct lpfc_register reg_data; 9009 uint16_t devid; 9010 9011 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9012 switch (if_type) { 9013 case LPFC_SLI_INTF_IF_TYPE_0: 9014 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 9015 GFP_KERNEL); 9016 if (!mboxq) { 9017 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9018 "0494 Unable to allocate memory for " 9019 "issuing SLI_FUNCTION_RESET mailbox " 9020 "command\n"); 9021 return -ENOMEM; 9022 } 9023 9024 /* Setup PCI function reset mailbox-ioctl command */ 9025 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 9026 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 9027 LPFC_SLI4_MBX_EMBED); 9028 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9029 shdr = (union lpfc_sli4_cfg_shdr *) 9030 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 9031 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 9032 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 9033 &shdr->response); 9034 if (rc != MBX_TIMEOUT) 9035 mempool_free(mboxq, phba->mbox_mem_pool); 9036 if (shdr_status || shdr_add_status || rc) { 9037 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9038 "0495 SLI_FUNCTION_RESET mailbox " 9039 "failed with status x%x add_status x%x," 9040 " mbx status x%x\n", 9041 shdr_status, shdr_add_status, rc); 9042 rc = -ENXIO; 9043 } 9044 break; 9045 case LPFC_SLI_INTF_IF_TYPE_2: 9046 wait: 9047 /* 9048 * Poll the Port Status Register and wait for RDY for 9049 * up to 30 seconds. If the port doesn't respond, treat 9050 * it as an error. 9051 */ 9052 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) { 9053 if (lpfc_readl(phba->sli4_hba.u.if_type2. 9054 STATUSregaddr, ®_data.word0)) { 9055 rc = -ENODEV; 9056 goto out; 9057 } 9058 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 9059 break; 9060 msleep(20); 9061 } 9062 9063 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) { 9064 phba->work_status[0] = readl( 9065 phba->sli4_hba.u.if_type2.ERR1regaddr); 9066 phba->work_status[1] = readl( 9067 phba->sli4_hba.u.if_type2.ERR2regaddr); 9068 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9069 "2890 Port not ready, port status reg " 9070 "0x%x error 1=0x%x, error 2=0x%x\n", 9071 reg_data.word0, 9072 phba->work_status[0], 9073 phba->work_status[1]); 9074 rc = -ENODEV; 9075 goto out; 9076 } 9077 9078 if (!port_reset) { 9079 /* 9080 * Reset the port now 9081 */ 9082 reg_data.word0 = 0; 9083 bf_set(lpfc_sliport_ctrl_end, ®_data, 9084 LPFC_SLIPORT_LITTLE_ENDIAN); 9085 bf_set(lpfc_sliport_ctrl_ip, ®_data, 9086 LPFC_SLIPORT_INIT_PORT); 9087 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 9088 CTRLregaddr); 9089 /* flush */ 9090 pci_read_config_word(phba->pcidev, 9091 PCI_DEVICE_ID, &devid); 9092 9093 port_reset = 1; 9094 msleep(20); 9095 goto wait; 9096 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) { 9097 rc = -ENODEV; 9098 goto out; 9099 } 9100 break; 9101 9102 case LPFC_SLI_INTF_IF_TYPE_1: 9103 default: 9104 break; 9105 } 9106 9107 out: 9108 /* Catch the not-ready port failure after a port reset. */ 9109 if (rc) { 9110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9111 "3317 HBA not functional: IP Reset Failed " 9112 "try: echo fw_reset > board_mode\n"); 9113 rc = -ENODEV; 9114 } 9115 9116 return rc; 9117 } 9118 9119 /** 9120 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 9121 * @phba: pointer to lpfc hba data structure. 9122 * 9123 * This routine is invoked to set up the PCI device memory space for device 9124 * with SLI-4 interface spec. 9125 * 9126 * Return codes 9127 * 0 - successful 9128 * other values - error 9129 **/ 9130 static int 9131 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 9132 { 9133 struct pci_dev *pdev; 9134 unsigned long bar0map_len, bar1map_len, bar2map_len; 9135 int error = -ENODEV; 9136 uint32_t if_type; 9137 9138 /* Obtain PCI device reference */ 9139 if (!phba->pcidev) 9140 return error; 9141 else 9142 pdev = phba->pcidev; 9143 9144 /* Set the device DMA mask size */ 9145 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 9146 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 9147 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 9148 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 9149 return error; 9150 } 9151 } 9152 9153 /* 9154 * The BARs and register set definitions and offset locations are 9155 * dependent on the if_type. 9156 */ 9157 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 9158 &phba->sli4_hba.sli_intf.word0)) { 9159 return error; 9160 } 9161 9162 /* There is no SLI3 failback for SLI4 devices. */ 9163 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 9164 LPFC_SLI_INTF_VALID) { 9165 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9166 "2894 SLI_INTF reg contents invalid " 9167 "sli_intf reg 0x%x\n", 9168 phba->sli4_hba.sli_intf.word0); 9169 return error; 9170 } 9171 9172 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9173 /* 9174 * Get the bus address of SLI4 device Bar regions and the 9175 * number of bytes required by each mapping. The mapping of the 9176 * particular PCI BARs regions is dependent on the type of 9177 * SLI4 device. 9178 */ 9179 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) { 9180 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0); 9181 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0); 9182 9183 /* 9184 * Map SLI4 PCI Config Space Register base to a kernel virtual 9185 * addr 9186 */ 9187 phba->sli4_hba.conf_regs_memmap_p = 9188 ioremap(phba->pci_bar0_map, bar0map_len); 9189 if (!phba->sli4_hba.conf_regs_memmap_p) { 9190 dev_printk(KERN_ERR, &pdev->dev, 9191 "ioremap failed for SLI4 PCI config " 9192 "registers.\n"); 9193 goto out; 9194 } 9195 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p; 9196 /* Set up BAR0 PCI config space register memory map */ 9197 lpfc_sli4_bar0_register_memmap(phba, if_type); 9198 } else { 9199 phba->pci_bar0_map = pci_resource_start(pdev, 1); 9200 bar0map_len = pci_resource_len(pdev, 1); 9201 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 9202 dev_printk(KERN_ERR, &pdev->dev, 9203 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 9204 goto out; 9205 } 9206 phba->sli4_hba.conf_regs_memmap_p = 9207 ioremap(phba->pci_bar0_map, bar0map_len); 9208 if (!phba->sli4_hba.conf_regs_memmap_p) { 9209 dev_printk(KERN_ERR, &pdev->dev, 9210 "ioremap failed for SLI4 PCI config " 9211 "registers.\n"); 9212 goto out; 9213 } 9214 lpfc_sli4_bar0_register_memmap(phba, if_type); 9215 } 9216 9217 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 9218 (pci_resource_start(pdev, PCI_64BIT_BAR2))) { 9219 /* 9220 * Map SLI4 if type 0 HBA Control Register base to a kernel 9221 * virtual address and setup the registers. 9222 */ 9223 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2); 9224 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); 9225 phba->sli4_hba.ctrl_regs_memmap_p = 9226 ioremap(phba->pci_bar1_map, bar1map_len); 9227 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 9228 dev_printk(KERN_ERR, &pdev->dev, 9229 "ioremap failed for SLI4 HBA control registers.\n"); 9230 goto out_iounmap_conf; 9231 } 9232 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p; 9233 lpfc_sli4_bar1_register_memmap(phba); 9234 } 9235 9236 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 9237 (pci_resource_start(pdev, PCI_64BIT_BAR4))) { 9238 /* 9239 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 9240 * virtual address and setup the registers. 9241 */ 9242 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4); 9243 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); 9244 phba->sli4_hba.drbl_regs_memmap_p = 9245 ioremap(phba->pci_bar2_map, bar2map_len); 9246 if (!phba->sli4_hba.drbl_regs_memmap_p) { 9247 dev_printk(KERN_ERR, &pdev->dev, 9248 "ioremap failed for SLI4 HBA doorbell registers.\n"); 9249 goto out_iounmap_ctrl; 9250 } 9251 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p; 9252 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 9253 if (error) 9254 goto out_iounmap_all; 9255 } 9256 9257 return 0; 9258 9259 out_iounmap_all: 9260 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9261 out_iounmap_ctrl: 9262 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9263 out_iounmap_conf: 9264 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9265 out: 9266 return error; 9267 } 9268 9269 /** 9270 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 9271 * @phba: pointer to lpfc hba data structure. 9272 * 9273 * This routine is invoked to unset the PCI device memory space for device 9274 * with SLI-4 interface spec. 9275 **/ 9276 static void 9277 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 9278 { 9279 uint32_t if_type; 9280 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9281 9282 switch (if_type) { 9283 case LPFC_SLI_INTF_IF_TYPE_0: 9284 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9285 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9286 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9287 break; 9288 case LPFC_SLI_INTF_IF_TYPE_2: 9289 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9290 break; 9291 case LPFC_SLI_INTF_IF_TYPE_1: 9292 default: 9293 dev_printk(KERN_ERR, &phba->pcidev->dev, 9294 "FATAL - unsupported SLI4 interface type - %d\n", 9295 if_type); 9296 break; 9297 } 9298 } 9299 9300 /** 9301 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 9302 * @phba: pointer to lpfc hba data structure. 9303 * 9304 * This routine is invoked to enable the MSI-X interrupt vectors to device 9305 * with SLI-3 interface specs. 9306 * 9307 * Return codes 9308 * 0 - successful 9309 * other values - error 9310 **/ 9311 static int 9312 lpfc_sli_enable_msix(struct lpfc_hba *phba) 9313 { 9314 int rc; 9315 LPFC_MBOXQ_t *pmb; 9316 9317 /* Set up MSI-X multi-message vectors */ 9318 rc = pci_alloc_irq_vectors(phba->pcidev, 9319 LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX); 9320 if (rc < 0) { 9321 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9322 "0420 PCI enable MSI-X failed (%d)\n", rc); 9323 goto vec_fail_out; 9324 } 9325 9326 /* 9327 * Assign MSI-X vectors to interrupt handlers 9328 */ 9329 9330 /* vector-0 is associated to slow-path handler */ 9331 rc = request_irq(pci_irq_vector(phba->pcidev, 0), 9332 &lpfc_sli_sp_intr_handler, 0, 9333 LPFC_SP_DRIVER_HANDLER_NAME, phba); 9334 if (rc) { 9335 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9336 "0421 MSI-X slow-path request_irq failed " 9337 "(%d)\n", rc); 9338 goto msi_fail_out; 9339 } 9340 9341 /* vector-1 is associated to fast-path handler */ 9342 rc = request_irq(pci_irq_vector(phba->pcidev, 1), 9343 &lpfc_sli_fp_intr_handler, 0, 9344 LPFC_FP_DRIVER_HANDLER_NAME, phba); 9345 9346 if (rc) { 9347 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9348 "0429 MSI-X fast-path request_irq failed " 9349 "(%d)\n", rc); 9350 goto irq_fail_out; 9351 } 9352 9353 /* 9354 * Configure HBA MSI-X attention conditions to messages 9355 */ 9356 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 9357 9358 if (!pmb) { 9359 rc = -ENOMEM; 9360 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9361 "0474 Unable to allocate memory for issuing " 9362 "MBOX_CONFIG_MSI command\n"); 9363 goto mem_fail_out; 9364 } 9365 rc = lpfc_config_msi(phba, pmb); 9366 if (rc) 9367 goto mbx_fail_out; 9368 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 9369 if (rc != MBX_SUCCESS) { 9370 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 9371 "0351 Config MSI mailbox command failed, " 9372 "mbxCmd x%x, mbxStatus x%x\n", 9373 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 9374 goto mbx_fail_out; 9375 } 9376 9377 /* Free memory allocated for mailbox command */ 9378 mempool_free(pmb, phba->mbox_mem_pool); 9379 return rc; 9380 9381 mbx_fail_out: 9382 /* Free memory allocated for mailbox command */ 9383 mempool_free(pmb, phba->mbox_mem_pool); 9384 9385 mem_fail_out: 9386 /* free the irq already requested */ 9387 free_irq(pci_irq_vector(phba->pcidev, 1), phba); 9388 9389 irq_fail_out: 9390 /* free the irq already requested */ 9391 free_irq(pci_irq_vector(phba->pcidev, 0), phba); 9392 9393 msi_fail_out: 9394 /* Unconfigure MSI-X capability structure */ 9395 pci_free_irq_vectors(phba->pcidev); 9396 9397 vec_fail_out: 9398 return rc; 9399 } 9400 9401 /** 9402 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 9403 * @phba: pointer to lpfc hba data structure. 9404 * 9405 * This routine is invoked to enable the MSI interrupt mode to device with 9406 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 9407 * enable the MSI vector. The device driver is responsible for calling the 9408 * request_irq() to register MSI vector with a interrupt the handler, which 9409 * is done in this function. 9410 * 9411 * Return codes 9412 * 0 - successful 9413 * other values - error 9414 */ 9415 static int 9416 lpfc_sli_enable_msi(struct lpfc_hba *phba) 9417 { 9418 int rc; 9419 9420 rc = pci_enable_msi(phba->pcidev); 9421 if (!rc) 9422 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9423 "0462 PCI enable MSI mode success.\n"); 9424 else { 9425 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9426 "0471 PCI enable MSI mode failed (%d)\n", rc); 9427 return rc; 9428 } 9429 9430 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9431 0, LPFC_DRIVER_NAME, phba); 9432 if (rc) { 9433 pci_disable_msi(phba->pcidev); 9434 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9435 "0478 MSI request_irq failed (%d)\n", rc); 9436 } 9437 return rc; 9438 } 9439 9440 /** 9441 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 9442 * @phba: pointer to lpfc hba data structure. 9443 * 9444 * This routine is invoked to enable device interrupt and associate driver's 9445 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 9446 * spec. Depends on the interrupt mode configured to the driver, the driver 9447 * will try to fallback from the configured interrupt mode to an interrupt 9448 * mode which is supported by the platform, kernel, and device in the order 9449 * of: 9450 * MSI-X -> MSI -> IRQ. 9451 * 9452 * Return codes 9453 * 0 - successful 9454 * other values - error 9455 **/ 9456 static uint32_t 9457 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9458 { 9459 uint32_t intr_mode = LPFC_INTR_ERROR; 9460 int retval; 9461 9462 if (cfg_mode == 2) { 9463 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 9464 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 9465 if (!retval) { 9466 /* Now, try to enable MSI-X interrupt mode */ 9467 retval = lpfc_sli_enable_msix(phba); 9468 if (!retval) { 9469 /* Indicate initialization to MSI-X mode */ 9470 phba->intr_type = MSIX; 9471 intr_mode = 2; 9472 } 9473 } 9474 } 9475 9476 /* Fallback to MSI if MSI-X initialization failed */ 9477 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9478 retval = lpfc_sli_enable_msi(phba); 9479 if (!retval) { 9480 /* Indicate initialization to MSI mode */ 9481 phba->intr_type = MSI; 9482 intr_mode = 1; 9483 } 9484 } 9485 9486 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9487 if (phba->intr_type == NONE) { 9488 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9489 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9490 if (!retval) { 9491 /* Indicate initialization to INTx mode */ 9492 phba->intr_type = INTx; 9493 intr_mode = 0; 9494 } 9495 } 9496 return intr_mode; 9497 } 9498 9499 /** 9500 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 9501 * @phba: pointer to lpfc hba data structure. 9502 * 9503 * This routine is invoked to disable device interrupt and disassociate the 9504 * driver's interrupt handler(s) from interrupt vector(s) to device with 9505 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 9506 * release the interrupt vector(s) for the message signaled interrupt. 9507 **/ 9508 static void 9509 lpfc_sli_disable_intr(struct lpfc_hba *phba) 9510 { 9511 int nr_irqs, i; 9512 9513 if (phba->intr_type == MSIX) 9514 nr_irqs = LPFC_MSIX_VECTORS; 9515 else 9516 nr_irqs = 1; 9517 9518 for (i = 0; i < nr_irqs; i++) 9519 free_irq(pci_irq_vector(phba->pcidev, i), phba); 9520 pci_free_irq_vectors(phba->pcidev); 9521 9522 /* Reset interrupt management states */ 9523 phba->intr_type = NONE; 9524 phba->sli.slistat.sli_intr = 0; 9525 } 9526 9527 /** 9528 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings 9529 * @phba: pointer to lpfc hba data structure. 9530 * @vectors: number of msix vectors allocated. 9531 * 9532 * The routine will figure out the CPU affinity assignment for every 9533 * MSI-X vector allocated for the HBA. The hba_eq_hdl will be updated 9534 * with a pointer to the CPU mask that defines ALL the CPUs this vector 9535 * can be associated with. If the vector can be unquely associated with 9536 * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu. 9537 * In addition, the CPU to IO channel mapping will be calculated 9538 * and the phba->sli4_hba.cpu_map array will reflect this. 9539 */ 9540 static void 9541 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors) 9542 { 9543 struct lpfc_vector_map_info *cpup; 9544 int index = 0; 9545 int vec = 0; 9546 int cpu; 9547 #ifdef CONFIG_X86 9548 struct cpuinfo_x86 *cpuinfo; 9549 #endif 9550 9551 /* Init cpu_map array */ 9552 memset(phba->sli4_hba.cpu_map, 0xff, 9553 (sizeof(struct lpfc_vector_map_info) * 9554 phba->sli4_hba.num_present_cpu)); 9555 9556 /* Update CPU map with physical id and core id of each CPU */ 9557 cpup = phba->sli4_hba.cpu_map; 9558 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 9559 #ifdef CONFIG_X86 9560 cpuinfo = &cpu_data(cpu); 9561 cpup->phys_id = cpuinfo->phys_proc_id; 9562 cpup->core_id = cpuinfo->cpu_core_id; 9563 #else 9564 /* No distinction between CPUs for other platforms */ 9565 cpup->phys_id = 0; 9566 cpup->core_id = 0; 9567 #endif 9568 cpup->channel_id = index; /* For now round robin */ 9569 cpup->irq = pci_irq_vector(phba->pcidev, vec); 9570 vec++; 9571 if (vec >= vectors) 9572 vec = 0; 9573 index++; 9574 if (index >= phba->cfg_fcp_io_channel) 9575 index = 0; 9576 cpup++; 9577 } 9578 } 9579 9580 9581 /** 9582 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 9583 * @phba: pointer to lpfc hba data structure. 9584 * 9585 * This routine is invoked to enable the MSI-X interrupt vectors to device 9586 * with SLI-4 interface spec. 9587 * 9588 * Return codes 9589 * 0 - successful 9590 * other values - error 9591 **/ 9592 static int 9593 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 9594 { 9595 int vectors, rc, index; 9596 9597 /* Set up MSI-X multi-message vectors */ 9598 vectors = phba->io_channel_irqs; 9599 if (phba->cfg_fof) 9600 vectors++; 9601 9602 rc = pci_alloc_irq_vectors(phba->pcidev, 9603 (phba->nvmet_support) ? 1 : 2, 9604 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); 9605 if (rc < 0) { 9606 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9607 "0484 PCI enable MSI-X failed (%d)\n", rc); 9608 goto vec_fail_out; 9609 } 9610 vectors = rc; 9611 9612 /* Assign MSI-X vectors to interrupt handlers */ 9613 for (index = 0; index < vectors; index++) { 9614 memset(&phba->sli4_hba.handler_name[index], 0, 16); 9615 snprintf((char *)&phba->sli4_hba.handler_name[index], 9616 LPFC_SLI4_HANDLER_NAME_SZ, 9617 LPFC_DRIVER_HANDLER_NAME"%d", index); 9618 9619 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9620 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9621 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1); 9622 if (phba->cfg_fof && (index == (vectors - 1))) 9623 rc = request_irq(pci_irq_vector(phba->pcidev, index), 9624 &lpfc_sli4_fof_intr_handler, 0, 9625 (char *)&phba->sli4_hba.handler_name[index], 9626 &phba->sli4_hba.hba_eq_hdl[index]); 9627 else 9628 rc = request_irq(pci_irq_vector(phba->pcidev, index), 9629 &lpfc_sli4_hba_intr_handler, 0, 9630 (char *)&phba->sli4_hba.handler_name[index], 9631 &phba->sli4_hba.hba_eq_hdl[index]); 9632 if (rc) { 9633 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9634 "0486 MSI-X fast-path (%d) " 9635 "request_irq failed (%d)\n", index, rc); 9636 goto cfg_fail_out; 9637 } 9638 } 9639 9640 if (phba->cfg_fof) 9641 vectors--; 9642 9643 if (vectors != phba->io_channel_irqs) { 9644 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9645 "3238 Reducing IO channels to match number of " 9646 "MSI-X vectors, requested %d got %d\n", 9647 phba->io_channel_irqs, vectors); 9648 if (phba->cfg_fcp_io_channel > vectors) 9649 phba->cfg_fcp_io_channel = vectors; 9650 if (phba->cfg_nvme_io_channel > vectors) 9651 phba->cfg_nvme_io_channel = vectors; 9652 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) 9653 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 9654 else 9655 phba->io_channel_irqs = phba->cfg_nvme_io_channel; 9656 } 9657 lpfc_cpu_affinity_check(phba, vectors); 9658 9659 return rc; 9660 9661 cfg_fail_out: 9662 /* free the irq already requested */ 9663 for (--index; index >= 0; index--) 9664 free_irq(pci_irq_vector(phba->pcidev, index), 9665 &phba->sli4_hba.hba_eq_hdl[index]); 9666 9667 /* Unconfigure MSI-X capability structure */ 9668 pci_free_irq_vectors(phba->pcidev); 9669 9670 vec_fail_out: 9671 return rc; 9672 } 9673 9674 /** 9675 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 9676 * @phba: pointer to lpfc hba data structure. 9677 * 9678 * This routine is invoked to enable the MSI interrupt mode to device with 9679 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 9680 * to enable the MSI vector. The device driver is responsible for calling 9681 * the request_irq() to register MSI vector with a interrupt the handler, 9682 * which is done in this function. 9683 * 9684 * Return codes 9685 * 0 - successful 9686 * other values - error 9687 **/ 9688 static int 9689 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 9690 { 9691 int rc, index; 9692 9693 rc = pci_enable_msi(phba->pcidev); 9694 if (!rc) 9695 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9696 "0487 PCI enable MSI mode success.\n"); 9697 else { 9698 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9699 "0488 PCI enable MSI mode failed (%d)\n", rc); 9700 return rc; 9701 } 9702 9703 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9704 0, LPFC_DRIVER_NAME, phba); 9705 if (rc) { 9706 pci_disable_msi(phba->pcidev); 9707 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9708 "0490 MSI request_irq failed (%d)\n", rc); 9709 return rc; 9710 } 9711 9712 for (index = 0; index < phba->io_channel_irqs; index++) { 9713 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9714 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9715 } 9716 9717 if (phba->cfg_fof) { 9718 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9719 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9720 } 9721 return 0; 9722 } 9723 9724 /** 9725 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 9726 * @phba: pointer to lpfc hba data structure. 9727 * 9728 * This routine is invoked to enable device interrupt and associate driver's 9729 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 9730 * interface spec. Depends on the interrupt mode configured to the driver, 9731 * the driver will try to fallback from the configured interrupt mode to an 9732 * interrupt mode which is supported by the platform, kernel, and device in 9733 * the order of: 9734 * MSI-X -> MSI -> IRQ. 9735 * 9736 * Return codes 9737 * 0 - successful 9738 * other values - error 9739 **/ 9740 static uint32_t 9741 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9742 { 9743 uint32_t intr_mode = LPFC_INTR_ERROR; 9744 int retval, idx; 9745 9746 if (cfg_mode == 2) { 9747 /* Preparation before conf_msi mbox cmd */ 9748 retval = 0; 9749 if (!retval) { 9750 /* Now, try to enable MSI-X interrupt mode */ 9751 retval = lpfc_sli4_enable_msix(phba); 9752 if (!retval) { 9753 /* Indicate initialization to MSI-X mode */ 9754 phba->intr_type = MSIX; 9755 intr_mode = 2; 9756 } 9757 } 9758 } 9759 9760 /* Fallback to MSI if MSI-X initialization failed */ 9761 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9762 retval = lpfc_sli4_enable_msi(phba); 9763 if (!retval) { 9764 /* Indicate initialization to MSI mode */ 9765 phba->intr_type = MSI; 9766 intr_mode = 1; 9767 } 9768 } 9769 9770 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9771 if (phba->intr_type == NONE) { 9772 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9773 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9774 if (!retval) { 9775 struct lpfc_hba_eq_hdl *eqhdl; 9776 9777 /* Indicate initialization to INTx mode */ 9778 phba->intr_type = INTx; 9779 intr_mode = 0; 9780 9781 for (idx = 0; idx < phba->io_channel_irqs; idx++) { 9782 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 9783 eqhdl->idx = idx; 9784 eqhdl->phba = phba; 9785 atomic_set(&eqhdl->hba_eq_in_use, 1); 9786 } 9787 if (phba->cfg_fof) { 9788 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 9789 eqhdl->idx = idx; 9790 eqhdl->phba = phba; 9791 atomic_set(&eqhdl->hba_eq_in_use, 1); 9792 } 9793 } 9794 } 9795 return intr_mode; 9796 } 9797 9798 /** 9799 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 9800 * @phba: pointer to lpfc hba data structure. 9801 * 9802 * This routine is invoked to disable device interrupt and disassociate 9803 * the driver's interrupt handler(s) from interrupt vector(s) to device 9804 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 9805 * will release the interrupt vector(s) for the message signaled interrupt. 9806 **/ 9807 static void 9808 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 9809 { 9810 /* Disable the currently initialized interrupt mode */ 9811 if (phba->intr_type == MSIX) { 9812 int index; 9813 9814 /* Free up MSI-X multi-message vectors */ 9815 for (index = 0; index < phba->io_channel_irqs; index++) 9816 free_irq(pci_irq_vector(phba->pcidev, index), 9817 &phba->sli4_hba.hba_eq_hdl[index]); 9818 9819 if (phba->cfg_fof) 9820 free_irq(pci_irq_vector(phba->pcidev, index), 9821 &phba->sli4_hba.hba_eq_hdl[index]); 9822 } else { 9823 free_irq(phba->pcidev->irq, phba); 9824 } 9825 9826 pci_free_irq_vectors(phba->pcidev); 9827 9828 /* Reset interrupt management states */ 9829 phba->intr_type = NONE; 9830 phba->sli.slistat.sli_intr = 0; 9831 } 9832 9833 /** 9834 * lpfc_unset_hba - Unset SLI3 hba device initialization 9835 * @phba: pointer to lpfc hba data structure. 9836 * 9837 * This routine is invoked to unset the HBA device initialization steps to 9838 * a device with SLI-3 interface spec. 9839 **/ 9840 static void 9841 lpfc_unset_hba(struct lpfc_hba *phba) 9842 { 9843 struct lpfc_vport *vport = phba->pport; 9844 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 9845 9846 spin_lock_irq(shost->host_lock); 9847 vport->load_flag |= FC_UNLOADING; 9848 spin_unlock_irq(shost->host_lock); 9849 9850 kfree(phba->vpi_bmask); 9851 kfree(phba->vpi_ids); 9852 9853 lpfc_stop_hba_timers(phba); 9854 9855 phba->pport->work_port_events = 0; 9856 9857 lpfc_sli_hba_down(phba); 9858 9859 lpfc_sli_brdrestart(phba); 9860 9861 lpfc_sli_disable_intr(phba); 9862 9863 return; 9864 } 9865 9866 /** 9867 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 9868 * @phba: Pointer to HBA context object. 9869 * 9870 * This function is called in the SLI4 code path to wait for completion 9871 * of device's XRIs exchange busy. It will check the XRI exchange busy 9872 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 9873 * that, it will check the XRI exchange busy on outstanding FCP and ELS 9874 * I/Os every 30 seconds, log error message, and wait forever. Only when 9875 * all XRI exchange busy complete, the driver unload shall proceed with 9876 * invoking the function reset ioctl mailbox command to the CNA and the 9877 * the rest of the driver unload resource release. 9878 **/ 9879 static void 9880 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 9881 { 9882 int wait_time = 0; 9883 int nvme_xri_cmpl = 1; 9884 int fcp_xri_cmpl = 1; 9885 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 9886 int nvmet_xri_cmpl = 9887 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_sgl_list); 9888 9889 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 9890 fcp_xri_cmpl = 9891 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 9892 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 9893 nvme_xri_cmpl = 9894 list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 9895 9896 while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl || 9897 !nvmet_xri_cmpl) { 9898 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 9899 if (!nvme_xri_cmpl) 9900 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9901 "6100 NVME XRI exchange busy " 9902 "wait time: %d seconds.\n", 9903 wait_time/1000); 9904 if (!fcp_xri_cmpl) 9905 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9906 "2877 FCP XRI exchange busy " 9907 "wait time: %d seconds.\n", 9908 wait_time/1000); 9909 if (!els_xri_cmpl) 9910 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9911 "2878 ELS XRI exchange busy " 9912 "wait time: %d seconds.\n", 9913 wait_time/1000); 9914 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 9915 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 9916 } else { 9917 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 9918 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 9919 } 9920 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 9921 nvme_xri_cmpl = list_empty( 9922 &phba->sli4_hba.lpfc_abts_nvme_buf_list); 9923 9924 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 9925 fcp_xri_cmpl = list_empty( 9926 &phba->sli4_hba.lpfc_abts_scsi_buf_list); 9927 9928 els_xri_cmpl = 9929 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 9930 9931 nvmet_xri_cmpl = 9932 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_sgl_list); 9933 } 9934 } 9935 9936 /** 9937 * lpfc_sli4_hba_unset - Unset the fcoe hba 9938 * @phba: Pointer to HBA context object. 9939 * 9940 * This function is called in the SLI4 code path to reset the HBA's FCoE 9941 * function. The caller is not required to hold any lock. This routine 9942 * issues PCI function reset mailbox command to reset the FCoE function. 9943 * At the end of the function, it calls lpfc_hba_down_post function to 9944 * free any pending commands. 9945 **/ 9946 static void 9947 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 9948 { 9949 int wait_cnt = 0; 9950 LPFC_MBOXQ_t *mboxq; 9951 struct pci_dev *pdev = phba->pcidev; 9952 9953 lpfc_stop_hba_timers(phba); 9954 phba->sli4_hba.intr_enable = 0; 9955 9956 /* 9957 * Gracefully wait out the potential current outstanding asynchronous 9958 * mailbox command. 9959 */ 9960 9961 /* First, block any pending async mailbox command from posted */ 9962 spin_lock_irq(&phba->hbalock); 9963 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 9964 spin_unlock_irq(&phba->hbalock); 9965 /* Now, trying to wait it out if we can */ 9966 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 9967 msleep(10); 9968 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 9969 break; 9970 } 9971 /* Forcefully release the outstanding mailbox command if timed out */ 9972 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 9973 spin_lock_irq(&phba->hbalock); 9974 mboxq = phba->sli.mbox_active; 9975 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 9976 __lpfc_mbox_cmpl_put(phba, mboxq); 9977 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 9978 phba->sli.mbox_active = NULL; 9979 spin_unlock_irq(&phba->hbalock); 9980 } 9981 9982 /* Abort all iocbs associated with the hba */ 9983 lpfc_sli_hba_iocb_abort(phba); 9984 9985 /* Wait for completion of device XRI exchange busy */ 9986 lpfc_sli4_xri_exchange_busy_wait(phba); 9987 9988 /* Disable PCI subsystem interrupt */ 9989 lpfc_sli4_disable_intr(phba); 9990 9991 /* Disable SR-IOV if enabled */ 9992 if (phba->cfg_sriov_nr_virtfn) 9993 pci_disable_sriov(pdev); 9994 9995 /* Stop kthread signal shall trigger work_done one more time */ 9996 kthread_stop(phba->worker_thread); 9997 9998 /* Reset SLI4 HBA FCoE function */ 9999 lpfc_pci_function_reset(phba); 10000 lpfc_sli4_queue_destroy(phba); 10001 10002 /* Stop the SLI4 device port */ 10003 phba->pport->work_port_events = 0; 10004 } 10005 10006 /** 10007 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 10008 * @phba: Pointer to HBA context object. 10009 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10010 * 10011 * This function is called in the SLI4 code path to read the port's 10012 * sli4 capabilities. 10013 * 10014 * This function may be be called from any context that can block-wait 10015 * for the completion. The expectation is that this routine is called 10016 * typically from probe_one or from the online routine. 10017 **/ 10018 int 10019 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10020 { 10021 int rc; 10022 struct lpfc_mqe *mqe; 10023 struct lpfc_pc_sli4_params *sli4_params; 10024 uint32_t mbox_tmo; 10025 10026 rc = 0; 10027 mqe = &mboxq->u.mqe; 10028 10029 /* Read the port's SLI4 Parameters port capabilities */ 10030 lpfc_pc_sli4_params(mboxq); 10031 if (!phba->sli4_hba.intr_enable) 10032 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10033 else { 10034 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10035 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10036 } 10037 10038 if (unlikely(rc)) 10039 return 1; 10040 10041 sli4_params = &phba->sli4_hba.pc_sli4_params; 10042 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 10043 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 10044 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 10045 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 10046 &mqe->un.sli4_params); 10047 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 10048 &mqe->un.sli4_params); 10049 sli4_params->proto_types = mqe->un.sli4_params.word3; 10050 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 10051 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 10052 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 10053 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 10054 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 10055 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 10056 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 10057 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 10058 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 10059 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 10060 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 10061 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 10062 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 10063 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 10064 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 10065 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 10066 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 10067 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 10068 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 10069 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 10070 10071 /* Make sure that sge_supp_len can be handled by the driver */ 10072 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10073 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10074 10075 return rc; 10076 } 10077 10078 /** 10079 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 10080 * @phba: Pointer to HBA context object. 10081 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10082 * 10083 * This function is called in the SLI4 code path to read the port's 10084 * sli4 capabilities. 10085 * 10086 * This function may be be called from any context that can block-wait 10087 * for the completion. The expectation is that this routine is called 10088 * typically from probe_one or from the online routine. 10089 **/ 10090 int 10091 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10092 { 10093 int rc; 10094 struct lpfc_mqe *mqe = &mboxq->u.mqe; 10095 struct lpfc_pc_sli4_params *sli4_params; 10096 uint32_t mbox_tmo; 10097 int length; 10098 struct lpfc_sli4_parameters *mbx_sli4_parameters; 10099 10100 /* 10101 * By default, the driver assumes the SLI4 port requires RPI 10102 * header postings. The SLI4_PARAM response will correct this 10103 * assumption. 10104 */ 10105 phba->sli4_hba.rpi_hdrs_in_use = 1; 10106 10107 /* Read the port's SLI4 Config Parameters */ 10108 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 10109 sizeof(struct lpfc_sli4_cfg_mhdr)); 10110 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 10111 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 10112 length, LPFC_SLI4_MBX_EMBED); 10113 if (!phba->sli4_hba.intr_enable) 10114 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10115 else { 10116 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10117 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10118 } 10119 if (unlikely(rc)) 10120 return rc; 10121 sli4_params = &phba->sli4_hba.pc_sli4_params; 10122 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 10123 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 10124 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 10125 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 10126 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 10127 mbx_sli4_parameters); 10128 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 10129 mbx_sli4_parameters); 10130 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 10131 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 10132 else 10133 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 10134 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 10135 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 10136 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters); 10137 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 10138 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 10139 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 10140 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 10141 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters); 10142 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 10143 mbx_sli4_parameters); 10144 sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters); 10145 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 10146 mbx_sli4_parameters); 10147 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 10148 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 10149 phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) && 10150 bf_get(cfg_xib, mbx_sli4_parameters)); 10151 10152 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) || 10153 !phba->nvme_support) { 10154 phba->nvme_support = 0; 10155 phba->nvmet_support = 0; 10156 phba->cfg_nvmet_mrq = 0; 10157 phba->cfg_nvme_io_channel = 0; 10158 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 10159 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME, 10160 "6101 Disabling NVME support: " 10161 "Not supported by firmware: %d %d\n", 10162 bf_get(cfg_nvme, mbx_sli4_parameters), 10163 bf_get(cfg_xib, mbx_sli4_parameters)); 10164 10165 /* If firmware doesn't support NVME, just use SCSI support */ 10166 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 10167 return -ENODEV; 10168 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 10169 } 10170 10171 if (bf_get(cfg_xib, mbx_sli4_parameters) && phba->cfg_suppress_rsp) 10172 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP; 10173 10174 /* Make sure that sge_supp_len can be handled by the driver */ 10175 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10176 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10177 10178 /* 10179 * Issue IOs with CDB embedded in WQE to minimized the number 10180 * of DMAs the firmware has to do. Setting this to 1 also forces 10181 * the driver to use 128 bytes WQEs for FCP IOs. 10182 */ 10183 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters)) 10184 phba->fcp_embed_io = 1; 10185 else 10186 phba->fcp_embed_io = 0; 10187 10188 /* 10189 * Check if the SLI port supports MDS Diagnostics 10190 */ 10191 if (bf_get(cfg_mds_diags, mbx_sli4_parameters)) 10192 phba->mds_diags_support = 1; 10193 else 10194 phba->mds_diags_support = 0; 10195 return 0; 10196 } 10197 10198 /** 10199 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 10200 * @pdev: pointer to PCI device 10201 * @pid: pointer to PCI device identifier 10202 * 10203 * This routine is to be called to attach a device with SLI-3 interface spec 10204 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10205 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 10206 * information of the device and driver to see if the driver state that it can 10207 * support this kind of device. If the match is successful, the driver core 10208 * invokes this routine. If this routine determines it can claim the HBA, it 10209 * does all the initialization that it needs to do to handle the HBA properly. 10210 * 10211 * Return code 10212 * 0 - driver can claim the device 10213 * negative value - driver can not claim the device 10214 **/ 10215 static int 10216 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 10217 { 10218 struct lpfc_hba *phba; 10219 struct lpfc_vport *vport = NULL; 10220 struct Scsi_Host *shost = NULL; 10221 int error; 10222 uint32_t cfg_mode, intr_mode; 10223 10224 /* Allocate memory for HBA structure */ 10225 phba = lpfc_hba_alloc(pdev); 10226 if (!phba) 10227 return -ENOMEM; 10228 10229 /* Perform generic PCI device enabling operation */ 10230 error = lpfc_enable_pci_dev(phba); 10231 if (error) 10232 goto out_free_phba; 10233 10234 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 10235 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 10236 if (error) 10237 goto out_disable_pci_dev; 10238 10239 /* Set up SLI-3 specific device PCI memory space */ 10240 error = lpfc_sli_pci_mem_setup(phba); 10241 if (error) { 10242 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10243 "1402 Failed to set up pci memory space.\n"); 10244 goto out_disable_pci_dev; 10245 } 10246 10247 /* Set up SLI-3 specific device driver resources */ 10248 error = lpfc_sli_driver_resource_setup(phba); 10249 if (error) { 10250 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10251 "1404 Failed to set up driver resource.\n"); 10252 goto out_unset_pci_mem_s3; 10253 } 10254 10255 /* Initialize and populate the iocb list per host */ 10256 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 10257 if (error) { 10258 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10259 "1405 Failed to initialize iocb list.\n"); 10260 goto out_unset_driver_resource_s3; 10261 } 10262 10263 /* Set up common device driver resources */ 10264 error = lpfc_setup_driver_resource_phase2(phba); 10265 if (error) { 10266 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10267 "1406 Failed to set up driver resource.\n"); 10268 goto out_free_iocb_list; 10269 } 10270 10271 /* Get the default values for Model Name and Description */ 10272 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 10273 10274 /* Create SCSI host to the physical port */ 10275 error = lpfc_create_shost(phba); 10276 if (error) { 10277 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10278 "1407 Failed to create scsi host.\n"); 10279 goto out_unset_driver_resource; 10280 } 10281 10282 /* Configure sysfs attributes */ 10283 vport = phba->pport; 10284 error = lpfc_alloc_sysfs_attr(vport); 10285 if (error) { 10286 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10287 "1476 Failed to allocate sysfs attr\n"); 10288 goto out_destroy_shost; 10289 } 10290 10291 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 10292 /* Now, trying to enable interrupt and bring up the device */ 10293 cfg_mode = phba->cfg_use_msi; 10294 while (true) { 10295 /* Put device to a known state before enabling interrupt */ 10296 lpfc_stop_port(phba); 10297 /* Configure and enable interrupt */ 10298 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 10299 if (intr_mode == LPFC_INTR_ERROR) { 10300 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10301 "0431 Failed to enable interrupt.\n"); 10302 error = -ENODEV; 10303 goto out_free_sysfs_attr; 10304 } 10305 /* SLI-3 HBA setup */ 10306 if (lpfc_sli_hba_setup(phba)) { 10307 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10308 "1477 Failed to set up hba\n"); 10309 error = -ENODEV; 10310 goto out_remove_device; 10311 } 10312 10313 /* Wait 50ms for the interrupts of previous mailbox commands */ 10314 msleep(50); 10315 /* Check active interrupts on message signaled interrupts */ 10316 if (intr_mode == 0 || 10317 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 10318 /* Log the current active interrupt mode */ 10319 phba->intr_mode = intr_mode; 10320 lpfc_log_intr_mode(phba, intr_mode); 10321 break; 10322 } else { 10323 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10324 "0447 Configure interrupt mode (%d) " 10325 "failed active interrupt test.\n", 10326 intr_mode); 10327 /* Disable the current interrupt mode */ 10328 lpfc_sli_disable_intr(phba); 10329 /* Try next level of interrupt mode */ 10330 cfg_mode = --intr_mode; 10331 } 10332 } 10333 10334 /* Perform post initialization setup */ 10335 lpfc_post_init_setup(phba); 10336 10337 /* Check if there are static vports to be created. */ 10338 lpfc_create_static_vport(phba); 10339 10340 return 0; 10341 10342 out_remove_device: 10343 lpfc_unset_hba(phba); 10344 out_free_sysfs_attr: 10345 lpfc_free_sysfs_attr(vport); 10346 out_destroy_shost: 10347 lpfc_destroy_shost(phba); 10348 out_unset_driver_resource: 10349 lpfc_unset_driver_resource_phase2(phba); 10350 out_free_iocb_list: 10351 lpfc_free_iocb_list(phba); 10352 out_unset_driver_resource_s3: 10353 lpfc_sli_driver_resource_unset(phba); 10354 out_unset_pci_mem_s3: 10355 lpfc_sli_pci_mem_unset(phba); 10356 out_disable_pci_dev: 10357 lpfc_disable_pci_dev(phba); 10358 if (shost) 10359 scsi_host_put(shost); 10360 out_free_phba: 10361 lpfc_hba_free(phba); 10362 return error; 10363 } 10364 10365 /** 10366 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 10367 * @pdev: pointer to PCI device 10368 * 10369 * This routine is to be called to disattach a device with SLI-3 interface 10370 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10371 * removed from PCI bus, it performs all the necessary cleanup for the HBA 10372 * device to be removed from the PCI subsystem properly. 10373 **/ 10374 static void 10375 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 10376 { 10377 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10378 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 10379 struct lpfc_vport **vports; 10380 struct lpfc_hba *phba = vport->phba; 10381 int i; 10382 10383 spin_lock_irq(&phba->hbalock); 10384 vport->load_flag |= FC_UNLOADING; 10385 spin_unlock_irq(&phba->hbalock); 10386 10387 lpfc_free_sysfs_attr(vport); 10388 10389 /* Release all the vports against this physical port */ 10390 vports = lpfc_create_vport_work_array(phba); 10391 if (vports != NULL) 10392 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 10393 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 10394 continue; 10395 fc_vport_terminate(vports[i]->fc_vport); 10396 } 10397 lpfc_destroy_vport_work_array(phba, vports); 10398 10399 /* Remove FC host and then SCSI host with the physical port */ 10400 fc_remove_host(shost); 10401 scsi_remove_host(shost); 10402 10403 /* Perform ndlp cleanup on the physical port. The nvme and nvmet 10404 * localports are destroyed after to cleanup all transport memory. 10405 */ 10406 lpfc_cleanup(vport); 10407 lpfc_nvmet_destroy_targetport(phba); 10408 lpfc_nvme_destroy_localport(vport); 10409 10410 /* 10411 * Bring down the SLI Layer. This step disable all interrupts, 10412 * clears the rings, discards all mailbox commands, and resets 10413 * the HBA. 10414 */ 10415 10416 /* HBA interrupt will be disabled after this call */ 10417 lpfc_sli_hba_down(phba); 10418 /* Stop kthread signal shall trigger work_done one more time */ 10419 kthread_stop(phba->worker_thread); 10420 /* Final cleanup of txcmplq and reset the HBA */ 10421 lpfc_sli_brdrestart(phba); 10422 10423 kfree(phba->vpi_bmask); 10424 kfree(phba->vpi_ids); 10425 10426 lpfc_stop_hba_timers(phba); 10427 spin_lock_irq(&phba->hbalock); 10428 list_del_init(&vport->listentry); 10429 spin_unlock_irq(&phba->hbalock); 10430 10431 lpfc_debugfs_terminate(vport); 10432 10433 /* Disable SR-IOV if enabled */ 10434 if (phba->cfg_sriov_nr_virtfn) 10435 pci_disable_sriov(pdev); 10436 10437 /* Disable interrupt */ 10438 lpfc_sli_disable_intr(phba); 10439 10440 scsi_host_put(shost); 10441 10442 /* 10443 * Call scsi_free before mem_free since scsi bufs are released to their 10444 * corresponding pools here. 10445 */ 10446 lpfc_scsi_free(phba); 10447 lpfc_mem_free_all(phba); 10448 10449 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 10450 phba->hbqslimp.virt, phba->hbqslimp.phys); 10451 10452 /* Free resources associated with SLI2 interface */ 10453 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 10454 phba->slim2p.virt, phba->slim2p.phys); 10455 10456 /* unmap adapter SLIM and Control Registers */ 10457 iounmap(phba->ctrl_regs_memmap_p); 10458 iounmap(phba->slim_memmap_p); 10459 10460 lpfc_hba_free(phba); 10461 10462 pci_release_mem_regions(pdev); 10463 pci_disable_device(pdev); 10464 } 10465 10466 /** 10467 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 10468 * @pdev: pointer to PCI device 10469 * @msg: power management message 10470 * 10471 * This routine is to be called from the kernel's PCI subsystem to support 10472 * system Power Management (PM) to device with SLI-3 interface spec. When 10473 * PM invokes this method, it quiesces the device by stopping the driver's 10474 * worker thread for the device, turning off device's interrupt and DMA, 10475 * and bring the device offline. Note that as the driver implements the 10476 * minimum PM requirements to a power-aware driver's PM support for the 10477 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 10478 * to the suspend() method call will be treated as SUSPEND and the driver will 10479 * fully reinitialize its device during resume() method call, the driver will 10480 * set device to PCI_D3hot state in PCI config space instead of setting it 10481 * according to the @msg provided by the PM. 10482 * 10483 * Return code 10484 * 0 - driver suspended the device 10485 * Error otherwise 10486 **/ 10487 static int 10488 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 10489 { 10490 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10491 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10492 10493 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10494 "0473 PCI device Power Management suspend.\n"); 10495 10496 /* Bring down the device */ 10497 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10498 lpfc_offline(phba); 10499 kthread_stop(phba->worker_thread); 10500 10501 /* Disable interrupt from device */ 10502 lpfc_sli_disable_intr(phba); 10503 10504 /* Save device state to PCI config space */ 10505 pci_save_state(pdev); 10506 pci_set_power_state(pdev, PCI_D3hot); 10507 10508 return 0; 10509 } 10510 10511 /** 10512 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 10513 * @pdev: pointer to PCI device 10514 * 10515 * This routine is to be called from the kernel's PCI subsystem to support 10516 * system Power Management (PM) to device with SLI-3 interface spec. When PM 10517 * invokes this method, it restores the device's PCI config space state and 10518 * fully reinitializes the device and brings it online. Note that as the 10519 * driver implements the minimum PM requirements to a power-aware driver's 10520 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 10521 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 10522 * driver will fully reinitialize its device during resume() method call, 10523 * the device will be set to PCI_D0 directly in PCI config space before 10524 * restoring the state. 10525 * 10526 * Return code 10527 * 0 - driver suspended the device 10528 * Error otherwise 10529 **/ 10530 static int 10531 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 10532 { 10533 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10534 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10535 uint32_t intr_mode; 10536 int error; 10537 10538 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10539 "0452 PCI device Power Management resume.\n"); 10540 10541 /* Restore device state from PCI config space */ 10542 pci_set_power_state(pdev, PCI_D0); 10543 pci_restore_state(pdev); 10544 10545 /* 10546 * As the new kernel behavior of pci_restore_state() API call clears 10547 * device saved_state flag, need to save the restored state again. 10548 */ 10549 pci_save_state(pdev); 10550 10551 if (pdev->is_busmaster) 10552 pci_set_master(pdev); 10553 10554 /* Startup the kernel thread for this host adapter. */ 10555 phba->worker_thread = kthread_run(lpfc_do_work, phba, 10556 "lpfc_worker_%d", phba->brd_no); 10557 if (IS_ERR(phba->worker_thread)) { 10558 error = PTR_ERR(phba->worker_thread); 10559 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10560 "0434 PM resume failed to start worker " 10561 "thread: error=x%x.\n", error); 10562 return error; 10563 } 10564 10565 /* Configure and enable interrupt */ 10566 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10567 if (intr_mode == LPFC_INTR_ERROR) { 10568 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10569 "0430 PM resume Failed to enable interrupt\n"); 10570 return -EIO; 10571 } else 10572 phba->intr_mode = intr_mode; 10573 10574 /* Restart HBA and bring it online */ 10575 lpfc_sli_brdrestart(phba); 10576 lpfc_online(phba); 10577 10578 /* Log the current active interrupt mode */ 10579 lpfc_log_intr_mode(phba, phba->intr_mode); 10580 10581 return 0; 10582 } 10583 10584 /** 10585 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 10586 * @phba: pointer to lpfc hba data structure. 10587 * 10588 * This routine is called to prepare the SLI3 device for PCI slot recover. It 10589 * aborts all the outstanding SCSI I/Os to the pci device. 10590 **/ 10591 static void 10592 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 10593 { 10594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10595 "2723 PCI channel I/O abort preparing for recovery\n"); 10596 10597 /* 10598 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 10599 * and let the SCSI mid-layer to retry them to recover. 10600 */ 10601 lpfc_sli_abort_fcp_rings(phba); 10602 } 10603 10604 /** 10605 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 10606 * @phba: pointer to lpfc hba data structure. 10607 * 10608 * This routine is called to prepare the SLI3 device for PCI slot reset. It 10609 * disables the device interrupt and pci device, and aborts the internal FCP 10610 * pending I/Os. 10611 **/ 10612 static void 10613 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 10614 { 10615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10616 "2710 PCI channel disable preparing for reset\n"); 10617 10618 /* Block any management I/Os to the device */ 10619 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 10620 10621 /* Block all SCSI devices' I/Os on the host */ 10622 lpfc_scsi_dev_block(phba); 10623 10624 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 10625 lpfc_sli_flush_fcp_rings(phba); 10626 10627 /* stop all timers */ 10628 lpfc_stop_hba_timers(phba); 10629 10630 /* Disable interrupt and pci device */ 10631 lpfc_sli_disable_intr(phba); 10632 pci_disable_device(phba->pcidev); 10633 } 10634 10635 /** 10636 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 10637 * @phba: pointer to lpfc hba data structure. 10638 * 10639 * This routine is called to prepare the SLI3 device for PCI slot permanently 10640 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 10641 * pending I/Os. 10642 **/ 10643 static void 10644 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 10645 { 10646 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10647 "2711 PCI channel permanent disable for failure\n"); 10648 /* Block all SCSI devices' I/Os on the host */ 10649 lpfc_scsi_dev_block(phba); 10650 10651 /* stop all timers */ 10652 lpfc_stop_hba_timers(phba); 10653 10654 /* Clean up all driver's outstanding SCSI I/Os */ 10655 lpfc_sli_flush_fcp_rings(phba); 10656 } 10657 10658 /** 10659 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 10660 * @pdev: pointer to PCI device. 10661 * @state: the current PCI connection state. 10662 * 10663 * This routine is called from the PCI subsystem for I/O error handling to 10664 * device with SLI-3 interface spec. This function is called by the PCI 10665 * subsystem after a PCI bus error affecting this device has been detected. 10666 * When this function is invoked, it will need to stop all the I/Os and 10667 * interrupt(s) to the device. Once that is done, it will return 10668 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 10669 * as desired. 10670 * 10671 * Return codes 10672 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 10673 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10674 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10675 **/ 10676 static pci_ers_result_t 10677 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 10678 { 10679 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10680 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10681 10682 switch (state) { 10683 case pci_channel_io_normal: 10684 /* Non-fatal error, prepare for recovery */ 10685 lpfc_sli_prep_dev_for_recover(phba); 10686 return PCI_ERS_RESULT_CAN_RECOVER; 10687 case pci_channel_io_frozen: 10688 /* Fatal error, prepare for slot reset */ 10689 lpfc_sli_prep_dev_for_reset(phba); 10690 return PCI_ERS_RESULT_NEED_RESET; 10691 case pci_channel_io_perm_failure: 10692 /* Permanent failure, prepare for device down */ 10693 lpfc_sli_prep_dev_for_perm_failure(phba); 10694 return PCI_ERS_RESULT_DISCONNECT; 10695 default: 10696 /* Unknown state, prepare and request slot reset */ 10697 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10698 "0472 Unknown PCI error state: x%x\n", state); 10699 lpfc_sli_prep_dev_for_reset(phba); 10700 return PCI_ERS_RESULT_NEED_RESET; 10701 } 10702 } 10703 10704 /** 10705 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 10706 * @pdev: pointer to PCI device. 10707 * 10708 * This routine is called from the PCI subsystem for error handling to 10709 * device with SLI-3 interface spec. This is called after PCI bus has been 10710 * reset to restart the PCI card from scratch, as if from a cold-boot. 10711 * During the PCI subsystem error recovery, after driver returns 10712 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 10713 * recovery and then call this routine before calling the .resume method 10714 * to recover the device. This function will initialize the HBA device, 10715 * enable the interrupt, but it will just put the HBA to offline state 10716 * without passing any I/O traffic. 10717 * 10718 * Return codes 10719 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10720 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10721 */ 10722 static pci_ers_result_t 10723 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 10724 { 10725 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10726 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10727 struct lpfc_sli *psli = &phba->sli; 10728 uint32_t intr_mode; 10729 10730 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 10731 if (pci_enable_device_mem(pdev)) { 10732 printk(KERN_ERR "lpfc: Cannot re-enable " 10733 "PCI device after reset.\n"); 10734 return PCI_ERS_RESULT_DISCONNECT; 10735 } 10736 10737 pci_restore_state(pdev); 10738 10739 /* 10740 * As the new kernel behavior of pci_restore_state() API call clears 10741 * device saved_state flag, need to save the restored state again. 10742 */ 10743 pci_save_state(pdev); 10744 10745 if (pdev->is_busmaster) 10746 pci_set_master(pdev); 10747 10748 spin_lock_irq(&phba->hbalock); 10749 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10750 spin_unlock_irq(&phba->hbalock); 10751 10752 /* Configure and enable interrupt */ 10753 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10754 if (intr_mode == LPFC_INTR_ERROR) { 10755 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10756 "0427 Cannot re-enable interrupt after " 10757 "slot reset.\n"); 10758 return PCI_ERS_RESULT_DISCONNECT; 10759 } else 10760 phba->intr_mode = intr_mode; 10761 10762 /* Take device offline, it will perform cleanup */ 10763 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10764 lpfc_offline(phba); 10765 lpfc_sli_brdrestart(phba); 10766 10767 /* Log the current active interrupt mode */ 10768 lpfc_log_intr_mode(phba, phba->intr_mode); 10769 10770 return PCI_ERS_RESULT_RECOVERED; 10771 } 10772 10773 /** 10774 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 10775 * @pdev: pointer to PCI device 10776 * 10777 * This routine is called from the PCI subsystem for error handling to device 10778 * with SLI-3 interface spec. It is called when kernel error recovery tells 10779 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10780 * error recovery. After this call, traffic can start to flow from this device 10781 * again. 10782 */ 10783 static void 10784 lpfc_io_resume_s3(struct pci_dev *pdev) 10785 { 10786 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10787 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10788 10789 /* Bring device online, it will be no-op for non-fatal error resume */ 10790 lpfc_online(phba); 10791 10792 /* Clean up Advanced Error Reporting (AER) if needed */ 10793 if (phba->hba_flag & HBA_AER_ENABLED) 10794 pci_cleanup_aer_uncorrect_error_status(pdev); 10795 } 10796 10797 /** 10798 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 10799 * @phba: pointer to lpfc hba data structure. 10800 * 10801 * returns the number of ELS/CT IOCBs to reserve 10802 **/ 10803 int 10804 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 10805 { 10806 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 10807 10808 if (phba->sli_rev == LPFC_SLI_REV4) { 10809 if (max_xri <= 100) 10810 return 10; 10811 else if (max_xri <= 256) 10812 return 25; 10813 else if (max_xri <= 512) 10814 return 50; 10815 else if (max_xri <= 1024) 10816 return 100; 10817 else if (max_xri <= 1536) 10818 return 150; 10819 else if (max_xri <= 2048) 10820 return 200; 10821 else 10822 return 250; 10823 } else 10824 return 0; 10825 } 10826 10827 /** 10828 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve 10829 * @phba: pointer to lpfc hba data structure. 10830 * 10831 * returns the number of ELS/CT + NVMET IOCBs to reserve 10832 **/ 10833 int 10834 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba) 10835 { 10836 int max_xri = lpfc_sli4_get_els_iocb_cnt(phba); 10837 10838 if (phba->nvmet_support) 10839 max_xri += LPFC_NVMET_BUF_POST; 10840 return max_xri; 10841 } 10842 10843 10844 /** 10845 * lpfc_write_firmware - attempt to write a firmware image to the port 10846 * @fw: pointer to firmware image returned from request_firmware. 10847 * @phba: pointer to lpfc hba data structure. 10848 * 10849 **/ 10850 static void 10851 lpfc_write_firmware(const struct firmware *fw, void *context) 10852 { 10853 struct lpfc_hba *phba = (struct lpfc_hba *)context; 10854 char fwrev[FW_REV_STR_SIZE]; 10855 struct lpfc_grp_hdr *image; 10856 struct list_head dma_buffer_list; 10857 int i, rc = 0; 10858 struct lpfc_dmabuf *dmabuf, *next; 10859 uint32_t offset = 0, temp_offset = 0; 10860 uint32_t magic_number, ftype, fid, fsize; 10861 10862 /* It can be null in no-wait mode, sanity check */ 10863 if (!fw) { 10864 rc = -ENXIO; 10865 goto out; 10866 } 10867 image = (struct lpfc_grp_hdr *)fw->data; 10868 10869 magic_number = be32_to_cpu(image->magic_number); 10870 ftype = bf_get_be32(lpfc_grp_hdr_file_type, image); 10871 fid = bf_get_be32(lpfc_grp_hdr_id, image), 10872 fsize = be32_to_cpu(image->size); 10873 10874 INIT_LIST_HEAD(&dma_buffer_list); 10875 if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 && 10876 magic_number != LPFC_GROUP_OJECT_MAGIC_G6) || 10877 ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) { 10878 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10879 "3022 Invalid FW image found. " 10880 "Magic:%x Type:%x ID:%x Size %d %zd\n", 10881 magic_number, ftype, fid, fsize, fw->size); 10882 rc = -EINVAL; 10883 goto release_out; 10884 } 10885 lpfc_decode_firmware_rev(phba, fwrev, 1); 10886 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 10887 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10888 "3023 Updating Firmware, Current Version:%s " 10889 "New Version:%s\n", 10890 fwrev, image->revision); 10891 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 10892 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 10893 GFP_KERNEL); 10894 if (!dmabuf) { 10895 rc = -ENOMEM; 10896 goto release_out; 10897 } 10898 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 10899 SLI4_PAGE_SIZE, 10900 &dmabuf->phys, 10901 GFP_KERNEL); 10902 if (!dmabuf->virt) { 10903 kfree(dmabuf); 10904 rc = -ENOMEM; 10905 goto release_out; 10906 } 10907 list_add_tail(&dmabuf->list, &dma_buffer_list); 10908 } 10909 while (offset < fw->size) { 10910 temp_offset = offset; 10911 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 10912 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 10913 memcpy(dmabuf->virt, 10914 fw->data + temp_offset, 10915 fw->size - temp_offset); 10916 temp_offset = fw->size; 10917 break; 10918 } 10919 memcpy(dmabuf->virt, fw->data + temp_offset, 10920 SLI4_PAGE_SIZE); 10921 temp_offset += SLI4_PAGE_SIZE; 10922 } 10923 rc = lpfc_wr_object(phba, &dma_buffer_list, 10924 (fw->size - offset), &offset); 10925 if (rc) 10926 goto release_out; 10927 } 10928 rc = offset; 10929 } 10930 10931 release_out: 10932 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 10933 list_del(&dmabuf->list); 10934 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 10935 dmabuf->virt, dmabuf->phys); 10936 kfree(dmabuf); 10937 } 10938 release_firmware(fw); 10939 out: 10940 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10941 "3024 Firmware update done: %d.\n", rc); 10942 return; 10943 } 10944 10945 /** 10946 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 10947 * @phba: pointer to lpfc hba data structure. 10948 * 10949 * This routine is called to perform Linux generic firmware upgrade on device 10950 * that supports such feature. 10951 **/ 10952 int 10953 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 10954 { 10955 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 10956 int ret; 10957 const struct firmware *fw; 10958 10959 /* Only supported on SLI4 interface type 2 for now */ 10960 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 10961 LPFC_SLI_INTF_IF_TYPE_2) 10962 return -EPERM; 10963 10964 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 10965 10966 if (fw_upgrade == INT_FW_UPGRADE) { 10967 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 10968 file_name, &phba->pcidev->dev, 10969 GFP_KERNEL, (void *)phba, 10970 lpfc_write_firmware); 10971 } else if (fw_upgrade == RUN_FW_UPGRADE) { 10972 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 10973 if (!ret) 10974 lpfc_write_firmware(fw, (void *)phba); 10975 } else { 10976 ret = -EINVAL; 10977 } 10978 10979 return ret; 10980 } 10981 10982 /** 10983 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 10984 * @pdev: pointer to PCI device 10985 * @pid: pointer to PCI device identifier 10986 * 10987 * This routine is called from the kernel's PCI subsystem to device with 10988 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 10989 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 10990 * information of the device and driver to see if the driver state that it 10991 * can support this kind of device. If the match is successful, the driver 10992 * core invokes this routine. If this routine determines it can claim the HBA, 10993 * it does all the initialization that it needs to do to handle the HBA 10994 * properly. 10995 * 10996 * Return code 10997 * 0 - driver can claim the device 10998 * negative value - driver can not claim the device 10999 **/ 11000 static int 11001 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 11002 { 11003 struct lpfc_hba *phba; 11004 struct lpfc_vport *vport = NULL; 11005 struct Scsi_Host *shost = NULL; 11006 int error; 11007 uint32_t cfg_mode, intr_mode; 11008 11009 /* Allocate memory for HBA structure */ 11010 phba = lpfc_hba_alloc(pdev); 11011 if (!phba) 11012 return -ENOMEM; 11013 11014 /* Perform generic PCI device enabling operation */ 11015 error = lpfc_enable_pci_dev(phba); 11016 if (error) 11017 goto out_free_phba; 11018 11019 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 11020 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 11021 if (error) 11022 goto out_disable_pci_dev; 11023 11024 /* Set up SLI-4 specific device PCI memory space */ 11025 error = lpfc_sli4_pci_mem_setup(phba); 11026 if (error) { 11027 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11028 "1410 Failed to set up pci memory space.\n"); 11029 goto out_disable_pci_dev; 11030 } 11031 11032 /* Set up SLI-4 Specific device driver resources */ 11033 error = lpfc_sli4_driver_resource_setup(phba); 11034 if (error) { 11035 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11036 "1412 Failed to set up driver resource.\n"); 11037 goto out_unset_pci_mem_s4; 11038 } 11039 11040 /* Initialize and populate the iocb list per host */ 11041 11042 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11043 "2821 initialize iocb list %d.\n", 11044 phba->cfg_iocb_cnt*1024); 11045 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 11046 11047 if (error) { 11048 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11049 "1413 Failed to initialize iocb list.\n"); 11050 goto out_unset_driver_resource_s4; 11051 } 11052 11053 INIT_LIST_HEAD(&phba->active_rrq_list); 11054 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 11055 11056 /* Set up common device driver resources */ 11057 error = lpfc_setup_driver_resource_phase2(phba); 11058 if (error) { 11059 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11060 "1414 Failed to set up driver resource.\n"); 11061 goto out_free_iocb_list; 11062 } 11063 11064 /* Get the default values for Model Name and Description */ 11065 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 11066 11067 /* Create SCSI host to the physical port */ 11068 error = lpfc_create_shost(phba); 11069 if (error) { 11070 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11071 "1415 Failed to create scsi host.\n"); 11072 goto out_unset_driver_resource; 11073 } 11074 11075 /* Configure sysfs attributes */ 11076 vport = phba->pport; 11077 error = lpfc_alloc_sysfs_attr(vport); 11078 if (error) { 11079 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11080 "1416 Failed to allocate sysfs attr\n"); 11081 goto out_destroy_shost; 11082 } 11083 11084 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 11085 /* Now, trying to enable interrupt and bring up the device */ 11086 cfg_mode = phba->cfg_use_msi; 11087 11088 /* Put device to a known state before enabling interrupt */ 11089 lpfc_stop_port(phba); 11090 11091 /* Configure and enable interrupt */ 11092 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 11093 if (intr_mode == LPFC_INTR_ERROR) { 11094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11095 "0426 Failed to enable interrupt.\n"); 11096 error = -ENODEV; 11097 goto out_free_sysfs_attr; 11098 } 11099 /* Default to single EQ for non-MSI-X */ 11100 if (phba->intr_type != MSIX) { 11101 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 11102 phba->cfg_fcp_io_channel = 1; 11103 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 11104 phba->cfg_nvme_io_channel = 1; 11105 if (phba->nvmet_support) 11106 phba->cfg_nvmet_mrq = 1; 11107 } 11108 phba->io_channel_irqs = 1; 11109 } 11110 11111 /* Set up SLI-4 HBA */ 11112 if (lpfc_sli4_hba_setup(phba)) { 11113 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11114 "1421 Failed to set up hba\n"); 11115 error = -ENODEV; 11116 goto out_disable_intr; 11117 } 11118 11119 /* Log the current active interrupt mode */ 11120 phba->intr_mode = intr_mode; 11121 lpfc_log_intr_mode(phba, intr_mode); 11122 11123 /* Perform post initialization setup */ 11124 lpfc_post_init_setup(phba); 11125 11126 /* NVME support in FW earlier in the driver load corrects the 11127 * FC4 type making a check for nvme_support unnecessary. 11128 */ 11129 if ((phba->nvmet_support == 0) && 11130 (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 11131 /* Create NVME binding with nvme_fc_transport. This 11132 * ensures the vport is initialized. 11133 */ 11134 error = lpfc_nvme_create_localport(vport); 11135 if (error) { 11136 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11137 "6004 NVME registration failed, " 11138 "error x%x\n", 11139 error); 11140 goto out_disable_intr; 11141 } 11142 } 11143 11144 /* check for firmware upgrade or downgrade */ 11145 if (phba->cfg_request_firmware_upgrade) 11146 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 11147 11148 /* Check if there are static vports to be created. */ 11149 lpfc_create_static_vport(phba); 11150 return 0; 11151 11152 out_disable_intr: 11153 lpfc_sli4_disable_intr(phba); 11154 out_free_sysfs_attr: 11155 lpfc_free_sysfs_attr(vport); 11156 out_destroy_shost: 11157 lpfc_destroy_shost(phba); 11158 out_unset_driver_resource: 11159 lpfc_unset_driver_resource_phase2(phba); 11160 out_free_iocb_list: 11161 lpfc_free_iocb_list(phba); 11162 out_unset_driver_resource_s4: 11163 lpfc_sli4_driver_resource_unset(phba); 11164 out_unset_pci_mem_s4: 11165 lpfc_sli4_pci_mem_unset(phba); 11166 out_disable_pci_dev: 11167 lpfc_disable_pci_dev(phba); 11168 if (shost) 11169 scsi_host_put(shost); 11170 out_free_phba: 11171 lpfc_hba_free(phba); 11172 return error; 11173 } 11174 11175 /** 11176 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 11177 * @pdev: pointer to PCI device 11178 * 11179 * This routine is called from the kernel's PCI subsystem to device with 11180 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11181 * removed from PCI bus, it performs all the necessary cleanup for the HBA 11182 * device to be removed from the PCI subsystem properly. 11183 **/ 11184 static void 11185 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 11186 { 11187 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11188 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 11189 struct lpfc_vport **vports; 11190 struct lpfc_hba *phba = vport->phba; 11191 int i; 11192 11193 /* Mark the device unloading flag */ 11194 spin_lock_irq(&phba->hbalock); 11195 vport->load_flag |= FC_UNLOADING; 11196 spin_unlock_irq(&phba->hbalock); 11197 11198 /* Free the HBA sysfs attributes */ 11199 lpfc_free_sysfs_attr(vport); 11200 11201 /* Release all the vports against this physical port */ 11202 vports = lpfc_create_vport_work_array(phba); 11203 if (vports != NULL) 11204 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 11205 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 11206 continue; 11207 fc_vport_terminate(vports[i]->fc_vport); 11208 } 11209 lpfc_destroy_vport_work_array(phba, vports); 11210 11211 /* Remove FC host and then SCSI host with the physical port */ 11212 fc_remove_host(shost); 11213 scsi_remove_host(shost); 11214 11215 /* Perform ndlp cleanup on the physical port. The nvme and nvmet 11216 * localports are destroyed after to cleanup all transport memory. 11217 */ 11218 lpfc_cleanup(vport); 11219 lpfc_nvmet_destroy_targetport(phba); 11220 lpfc_nvme_destroy_localport(vport); 11221 11222 /* 11223 * Bring down the SLI Layer. This step disables all interrupts, 11224 * clears the rings, discards all mailbox commands, and resets 11225 * the HBA FCoE function. 11226 */ 11227 lpfc_debugfs_terminate(vport); 11228 lpfc_sli4_hba_unset(phba); 11229 11230 spin_lock_irq(&phba->hbalock); 11231 list_del_init(&vport->listentry); 11232 spin_unlock_irq(&phba->hbalock); 11233 11234 /* Perform scsi free before driver resource_unset since scsi 11235 * buffers are released to their corresponding pools here. 11236 */ 11237 lpfc_scsi_free(phba); 11238 lpfc_nvme_free(phba); 11239 lpfc_free_iocb_list(phba); 11240 11241 lpfc_sli4_driver_resource_unset(phba); 11242 11243 /* Unmap adapter Control and Doorbell registers */ 11244 lpfc_sli4_pci_mem_unset(phba); 11245 11246 /* Release PCI resources and disable device's PCI function */ 11247 scsi_host_put(shost); 11248 lpfc_disable_pci_dev(phba); 11249 11250 /* Finally, free the driver's device data structure */ 11251 lpfc_hba_free(phba); 11252 11253 return; 11254 } 11255 11256 /** 11257 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 11258 * @pdev: pointer to PCI device 11259 * @msg: power management message 11260 * 11261 * This routine is called from the kernel's PCI subsystem to support system 11262 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 11263 * this method, it quiesces the device by stopping the driver's worker 11264 * thread for the device, turning off device's interrupt and DMA, and bring 11265 * the device offline. Note that as the driver implements the minimum PM 11266 * requirements to a power-aware driver's PM support for suspend/resume -- all 11267 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 11268 * method call will be treated as SUSPEND and the driver will fully 11269 * reinitialize its device during resume() method call, the driver will set 11270 * device to PCI_D3hot state in PCI config space instead of setting it 11271 * according to the @msg provided by the PM. 11272 * 11273 * Return code 11274 * 0 - driver suspended the device 11275 * Error otherwise 11276 **/ 11277 static int 11278 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 11279 { 11280 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11281 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11282 11283 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11284 "2843 PCI device Power Management suspend.\n"); 11285 11286 /* Bring down the device */ 11287 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11288 lpfc_offline(phba); 11289 kthread_stop(phba->worker_thread); 11290 11291 /* Disable interrupt from device */ 11292 lpfc_sli4_disable_intr(phba); 11293 lpfc_sli4_queue_destroy(phba); 11294 11295 /* Save device state to PCI config space */ 11296 pci_save_state(pdev); 11297 pci_set_power_state(pdev, PCI_D3hot); 11298 11299 return 0; 11300 } 11301 11302 /** 11303 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 11304 * @pdev: pointer to PCI device 11305 * 11306 * This routine is called from the kernel's PCI subsystem to support system 11307 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 11308 * this method, it restores the device's PCI config space state and fully 11309 * reinitializes the device and brings it online. Note that as the driver 11310 * implements the minimum PM requirements to a power-aware driver's PM for 11311 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 11312 * to the suspend() method call will be treated as SUSPEND and the driver 11313 * will fully reinitialize its device during resume() method call, the device 11314 * will be set to PCI_D0 directly in PCI config space before restoring the 11315 * state. 11316 * 11317 * Return code 11318 * 0 - driver suspended the device 11319 * Error otherwise 11320 **/ 11321 static int 11322 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 11323 { 11324 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11325 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11326 uint32_t intr_mode; 11327 int error; 11328 11329 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11330 "0292 PCI device Power Management resume.\n"); 11331 11332 /* Restore device state from PCI config space */ 11333 pci_set_power_state(pdev, PCI_D0); 11334 pci_restore_state(pdev); 11335 11336 /* 11337 * As the new kernel behavior of pci_restore_state() API call clears 11338 * device saved_state flag, need to save the restored state again. 11339 */ 11340 pci_save_state(pdev); 11341 11342 if (pdev->is_busmaster) 11343 pci_set_master(pdev); 11344 11345 /* Startup the kernel thread for this host adapter. */ 11346 phba->worker_thread = kthread_run(lpfc_do_work, phba, 11347 "lpfc_worker_%d", phba->brd_no); 11348 if (IS_ERR(phba->worker_thread)) { 11349 error = PTR_ERR(phba->worker_thread); 11350 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11351 "0293 PM resume failed to start worker " 11352 "thread: error=x%x.\n", error); 11353 return error; 11354 } 11355 11356 /* Configure and enable interrupt */ 11357 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 11358 if (intr_mode == LPFC_INTR_ERROR) { 11359 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11360 "0294 PM resume Failed to enable interrupt\n"); 11361 return -EIO; 11362 } else 11363 phba->intr_mode = intr_mode; 11364 11365 /* Restart HBA and bring it online */ 11366 lpfc_sli_brdrestart(phba); 11367 lpfc_online(phba); 11368 11369 /* Log the current active interrupt mode */ 11370 lpfc_log_intr_mode(phba, phba->intr_mode); 11371 11372 return 0; 11373 } 11374 11375 /** 11376 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 11377 * @phba: pointer to lpfc hba data structure. 11378 * 11379 * This routine is called to prepare the SLI4 device for PCI slot recover. It 11380 * aborts all the outstanding SCSI I/Os to the pci device. 11381 **/ 11382 static void 11383 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 11384 { 11385 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11386 "2828 PCI channel I/O abort preparing for recovery\n"); 11387 /* 11388 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 11389 * and let the SCSI mid-layer to retry them to recover. 11390 */ 11391 lpfc_sli_abort_fcp_rings(phba); 11392 } 11393 11394 /** 11395 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 11396 * @phba: pointer to lpfc hba data structure. 11397 * 11398 * This routine is called to prepare the SLI4 device for PCI slot reset. It 11399 * disables the device interrupt and pci device, and aborts the internal FCP 11400 * pending I/Os. 11401 **/ 11402 static void 11403 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 11404 { 11405 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11406 "2826 PCI channel disable preparing for reset\n"); 11407 11408 /* Block any management I/Os to the device */ 11409 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 11410 11411 /* Block all SCSI devices' I/Os on the host */ 11412 lpfc_scsi_dev_block(phba); 11413 11414 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 11415 lpfc_sli_flush_fcp_rings(phba); 11416 11417 /* stop all timers */ 11418 lpfc_stop_hba_timers(phba); 11419 11420 /* Disable interrupt and pci device */ 11421 lpfc_sli4_disable_intr(phba); 11422 lpfc_sli4_queue_destroy(phba); 11423 pci_disable_device(phba->pcidev); 11424 } 11425 11426 /** 11427 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 11428 * @phba: pointer to lpfc hba data structure. 11429 * 11430 * This routine is called to prepare the SLI4 device for PCI slot permanently 11431 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 11432 * pending I/Os. 11433 **/ 11434 static void 11435 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 11436 { 11437 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11438 "2827 PCI channel permanent disable for failure\n"); 11439 11440 /* Block all SCSI devices' I/Os on the host */ 11441 lpfc_scsi_dev_block(phba); 11442 11443 /* stop all timers */ 11444 lpfc_stop_hba_timers(phba); 11445 11446 /* Clean up all driver's outstanding SCSI I/Os */ 11447 lpfc_sli_flush_fcp_rings(phba); 11448 } 11449 11450 /** 11451 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 11452 * @pdev: pointer to PCI device. 11453 * @state: the current PCI connection state. 11454 * 11455 * This routine is called from the PCI subsystem for error handling to device 11456 * with SLI-4 interface spec. This function is called by the PCI subsystem 11457 * after a PCI bus error affecting this device has been detected. When this 11458 * function is invoked, it will need to stop all the I/Os and interrupt(s) 11459 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 11460 * for the PCI subsystem to perform proper recovery as desired. 11461 * 11462 * Return codes 11463 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11464 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11465 **/ 11466 static pci_ers_result_t 11467 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 11468 { 11469 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11470 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11471 11472 switch (state) { 11473 case pci_channel_io_normal: 11474 /* Non-fatal error, prepare for recovery */ 11475 lpfc_sli4_prep_dev_for_recover(phba); 11476 return PCI_ERS_RESULT_CAN_RECOVER; 11477 case pci_channel_io_frozen: 11478 /* Fatal error, prepare for slot reset */ 11479 lpfc_sli4_prep_dev_for_reset(phba); 11480 return PCI_ERS_RESULT_NEED_RESET; 11481 case pci_channel_io_perm_failure: 11482 /* Permanent failure, prepare for device down */ 11483 lpfc_sli4_prep_dev_for_perm_failure(phba); 11484 return PCI_ERS_RESULT_DISCONNECT; 11485 default: 11486 /* Unknown state, prepare and request slot reset */ 11487 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11488 "2825 Unknown PCI error state: x%x\n", state); 11489 lpfc_sli4_prep_dev_for_reset(phba); 11490 return PCI_ERS_RESULT_NEED_RESET; 11491 } 11492 } 11493 11494 /** 11495 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 11496 * @pdev: pointer to PCI device. 11497 * 11498 * This routine is called from the PCI subsystem for error handling to device 11499 * with SLI-4 interface spec. It is called after PCI bus has been reset to 11500 * restart the PCI card from scratch, as if from a cold-boot. During the 11501 * PCI subsystem error recovery, after the driver returns 11502 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 11503 * recovery and then call this routine before calling the .resume method to 11504 * recover the device. This function will initialize the HBA device, enable 11505 * the interrupt, but it will just put the HBA to offline state without 11506 * passing any I/O traffic. 11507 * 11508 * Return codes 11509 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11510 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11511 */ 11512 static pci_ers_result_t 11513 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 11514 { 11515 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11516 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11517 struct lpfc_sli *psli = &phba->sli; 11518 uint32_t intr_mode; 11519 11520 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 11521 if (pci_enable_device_mem(pdev)) { 11522 printk(KERN_ERR "lpfc: Cannot re-enable " 11523 "PCI device after reset.\n"); 11524 return PCI_ERS_RESULT_DISCONNECT; 11525 } 11526 11527 pci_restore_state(pdev); 11528 11529 /* 11530 * As the new kernel behavior of pci_restore_state() API call clears 11531 * device saved_state flag, need to save the restored state again. 11532 */ 11533 pci_save_state(pdev); 11534 11535 if (pdev->is_busmaster) 11536 pci_set_master(pdev); 11537 11538 spin_lock_irq(&phba->hbalock); 11539 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 11540 spin_unlock_irq(&phba->hbalock); 11541 11542 /* Configure and enable interrupt */ 11543 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 11544 if (intr_mode == LPFC_INTR_ERROR) { 11545 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11546 "2824 Cannot re-enable interrupt after " 11547 "slot reset.\n"); 11548 return PCI_ERS_RESULT_DISCONNECT; 11549 } else 11550 phba->intr_mode = intr_mode; 11551 11552 /* Log the current active interrupt mode */ 11553 lpfc_log_intr_mode(phba, phba->intr_mode); 11554 11555 return PCI_ERS_RESULT_RECOVERED; 11556 } 11557 11558 /** 11559 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 11560 * @pdev: pointer to PCI device 11561 * 11562 * This routine is called from the PCI subsystem for error handling to device 11563 * with SLI-4 interface spec. It is called when kernel error recovery tells 11564 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 11565 * error recovery. After this call, traffic can start to flow from this device 11566 * again. 11567 **/ 11568 static void 11569 lpfc_io_resume_s4(struct pci_dev *pdev) 11570 { 11571 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11572 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11573 11574 /* 11575 * In case of slot reset, as function reset is performed through 11576 * mailbox command which needs DMA to be enabled, this operation 11577 * has to be moved to the io resume phase. Taking device offline 11578 * will perform the necessary cleanup. 11579 */ 11580 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 11581 /* Perform device reset */ 11582 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11583 lpfc_offline(phba); 11584 lpfc_sli_brdrestart(phba); 11585 /* Bring the device back online */ 11586 lpfc_online(phba); 11587 } 11588 11589 /* Clean up Advanced Error Reporting (AER) if needed */ 11590 if (phba->hba_flag & HBA_AER_ENABLED) 11591 pci_cleanup_aer_uncorrect_error_status(pdev); 11592 } 11593 11594 /** 11595 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 11596 * @pdev: pointer to PCI device 11597 * @pid: pointer to PCI device identifier 11598 * 11599 * This routine is to be registered to the kernel's PCI subsystem. When an 11600 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 11601 * at PCI device-specific information of the device and driver to see if the 11602 * driver state that it can support this kind of device. If the match is 11603 * successful, the driver core invokes this routine. This routine dispatches 11604 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 11605 * do all the initialization that it needs to do to handle the HBA device 11606 * properly. 11607 * 11608 * Return code 11609 * 0 - driver can claim the device 11610 * negative value - driver can not claim the device 11611 **/ 11612 static int 11613 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 11614 { 11615 int rc; 11616 struct lpfc_sli_intf intf; 11617 11618 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 11619 return -ENODEV; 11620 11621 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 11622 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 11623 rc = lpfc_pci_probe_one_s4(pdev, pid); 11624 else 11625 rc = lpfc_pci_probe_one_s3(pdev, pid); 11626 11627 return rc; 11628 } 11629 11630 /** 11631 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 11632 * @pdev: pointer to PCI device 11633 * 11634 * This routine is to be registered to the kernel's PCI subsystem. When an 11635 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 11636 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 11637 * remove routine, which will perform all the necessary cleanup for the 11638 * device to be removed from the PCI subsystem properly. 11639 **/ 11640 static void 11641 lpfc_pci_remove_one(struct pci_dev *pdev) 11642 { 11643 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11644 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11645 11646 switch (phba->pci_dev_grp) { 11647 case LPFC_PCI_DEV_LP: 11648 lpfc_pci_remove_one_s3(pdev); 11649 break; 11650 case LPFC_PCI_DEV_OC: 11651 lpfc_pci_remove_one_s4(pdev); 11652 break; 11653 default: 11654 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11655 "1424 Invalid PCI device group: 0x%x\n", 11656 phba->pci_dev_grp); 11657 break; 11658 } 11659 return; 11660 } 11661 11662 /** 11663 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 11664 * @pdev: pointer to PCI device 11665 * @msg: power management message 11666 * 11667 * This routine is to be registered to the kernel's PCI subsystem to support 11668 * system Power Management (PM). When PM invokes this method, it dispatches 11669 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 11670 * suspend the device. 11671 * 11672 * Return code 11673 * 0 - driver suspended the device 11674 * Error otherwise 11675 **/ 11676 static int 11677 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 11678 { 11679 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11680 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11681 int rc = -ENODEV; 11682 11683 switch (phba->pci_dev_grp) { 11684 case LPFC_PCI_DEV_LP: 11685 rc = lpfc_pci_suspend_one_s3(pdev, msg); 11686 break; 11687 case LPFC_PCI_DEV_OC: 11688 rc = lpfc_pci_suspend_one_s4(pdev, msg); 11689 break; 11690 default: 11691 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11692 "1425 Invalid PCI device group: 0x%x\n", 11693 phba->pci_dev_grp); 11694 break; 11695 } 11696 return rc; 11697 } 11698 11699 /** 11700 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 11701 * @pdev: pointer to PCI device 11702 * 11703 * This routine is to be registered to the kernel's PCI subsystem to support 11704 * system Power Management (PM). When PM invokes this method, it dispatches 11705 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 11706 * resume the device. 11707 * 11708 * Return code 11709 * 0 - driver suspended the device 11710 * Error otherwise 11711 **/ 11712 static int 11713 lpfc_pci_resume_one(struct pci_dev *pdev) 11714 { 11715 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11716 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11717 int rc = -ENODEV; 11718 11719 switch (phba->pci_dev_grp) { 11720 case LPFC_PCI_DEV_LP: 11721 rc = lpfc_pci_resume_one_s3(pdev); 11722 break; 11723 case LPFC_PCI_DEV_OC: 11724 rc = lpfc_pci_resume_one_s4(pdev); 11725 break; 11726 default: 11727 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11728 "1426 Invalid PCI device group: 0x%x\n", 11729 phba->pci_dev_grp); 11730 break; 11731 } 11732 return rc; 11733 } 11734 11735 /** 11736 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 11737 * @pdev: pointer to PCI device. 11738 * @state: the current PCI connection state. 11739 * 11740 * This routine is registered to the PCI subsystem for error handling. This 11741 * function is called by the PCI subsystem after a PCI bus error affecting 11742 * this device has been detected. When this routine is invoked, it dispatches 11743 * the action to the proper SLI-3 or SLI-4 device error detected handling 11744 * routine, which will perform the proper error detected operation. 11745 * 11746 * Return codes 11747 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11748 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11749 **/ 11750 static pci_ers_result_t 11751 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 11752 { 11753 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11754 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11755 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11756 11757 switch (phba->pci_dev_grp) { 11758 case LPFC_PCI_DEV_LP: 11759 rc = lpfc_io_error_detected_s3(pdev, state); 11760 break; 11761 case LPFC_PCI_DEV_OC: 11762 rc = lpfc_io_error_detected_s4(pdev, state); 11763 break; 11764 default: 11765 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11766 "1427 Invalid PCI device group: 0x%x\n", 11767 phba->pci_dev_grp); 11768 break; 11769 } 11770 return rc; 11771 } 11772 11773 /** 11774 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 11775 * @pdev: pointer to PCI device. 11776 * 11777 * This routine is registered to the PCI subsystem for error handling. This 11778 * function is called after PCI bus has been reset to restart the PCI card 11779 * from scratch, as if from a cold-boot. When this routine is invoked, it 11780 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 11781 * routine, which will perform the proper device reset. 11782 * 11783 * Return codes 11784 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11785 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11786 **/ 11787 static pci_ers_result_t 11788 lpfc_io_slot_reset(struct pci_dev *pdev) 11789 { 11790 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11791 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11792 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11793 11794 switch (phba->pci_dev_grp) { 11795 case LPFC_PCI_DEV_LP: 11796 rc = lpfc_io_slot_reset_s3(pdev); 11797 break; 11798 case LPFC_PCI_DEV_OC: 11799 rc = lpfc_io_slot_reset_s4(pdev); 11800 break; 11801 default: 11802 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11803 "1428 Invalid PCI device group: 0x%x\n", 11804 phba->pci_dev_grp); 11805 break; 11806 } 11807 return rc; 11808 } 11809 11810 /** 11811 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 11812 * @pdev: pointer to PCI device 11813 * 11814 * This routine is registered to the PCI subsystem for error handling. It 11815 * is called when kernel error recovery tells the lpfc driver that it is 11816 * OK to resume normal PCI operation after PCI bus error recovery. When 11817 * this routine is invoked, it dispatches the action to the proper SLI-3 11818 * or SLI-4 device io_resume routine, which will resume the device operation. 11819 **/ 11820 static void 11821 lpfc_io_resume(struct pci_dev *pdev) 11822 { 11823 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11824 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11825 11826 switch (phba->pci_dev_grp) { 11827 case LPFC_PCI_DEV_LP: 11828 lpfc_io_resume_s3(pdev); 11829 break; 11830 case LPFC_PCI_DEV_OC: 11831 lpfc_io_resume_s4(pdev); 11832 break; 11833 default: 11834 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11835 "1429 Invalid PCI device group: 0x%x\n", 11836 phba->pci_dev_grp); 11837 break; 11838 } 11839 return; 11840 } 11841 11842 /** 11843 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter 11844 * @phba: pointer to lpfc hba data structure. 11845 * 11846 * This routine checks to see if OAS is supported for this adapter. If 11847 * supported, the configure Flash Optimized Fabric flag is set. Otherwise, 11848 * the enable oas flag is cleared and the pool created for OAS device data 11849 * is destroyed. 11850 * 11851 **/ 11852 void 11853 lpfc_sli4_oas_verify(struct lpfc_hba *phba) 11854 { 11855 11856 if (!phba->cfg_EnableXLane) 11857 return; 11858 11859 if (phba->sli4_hba.pc_sli4_params.oas_supported) { 11860 phba->cfg_fof = 1; 11861 } else { 11862 phba->cfg_fof = 0; 11863 if (phba->device_data_mem_pool) 11864 mempool_destroy(phba->device_data_mem_pool); 11865 phba->device_data_mem_pool = NULL; 11866 } 11867 11868 return; 11869 } 11870 11871 /** 11872 * lpfc_fof_queue_setup - Set up all the fof queues 11873 * @phba: pointer to lpfc hba data structure. 11874 * 11875 * This routine is invoked to set up all the fof queues for the FC HBA 11876 * operation. 11877 * 11878 * Return codes 11879 * 0 - successful 11880 * -ENOMEM - No available memory 11881 **/ 11882 int 11883 lpfc_fof_queue_setup(struct lpfc_hba *phba) 11884 { 11885 struct lpfc_sli_ring *pring; 11886 int rc; 11887 11888 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX); 11889 if (rc) 11890 return -ENOMEM; 11891 11892 if (phba->cfg_fof) { 11893 11894 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq, 11895 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP); 11896 if (rc) 11897 goto out_oas_cq; 11898 11899 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq, 11900 phba->sli4_hba.oas_cq, LPFC_FCP); 11901 if (rc) 11902 goto out_oas_wq; 11903 11904 /* Bind this CQ/WQ to the NVME ring */ 11905 pring = phba->sli4_hba.oas_wq->pring; 11906 pring->sli.sli4.wqp = 11907 (void *)phba->sli4_hba.oas_wq; 11908 phba->sli4_hba.oas_cq->pring = pring; 11909 } 11910 11911 return 0; 11912 11913 out_oas_wq: 11914 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq); 11915 out_oas_cq: 11916 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq); 11917 return rc; 11918 11919 } 11920 11921 /** 11922 * lpfc_fof_queue_create - Create all the fof queues 11923 * @phba: pointer to lpfc hba data structure. 11924 * 11925 * This routine is invoked to allocate all the fof queues for the FC HBA 11926 * operation. For each SLI4 queue type, the parameters such as queue entry 11927 * count (queue depth) shall be taken from the module parameter. For now, 11928 * we just use some constant number as place holder. 11929 * 11930 * Return codes 11931 * 0 - successful 11932 * -ENOMEM - No availble memory 11933 * -EIO - The mailbox failed to complete successfully. 11934 **/ 11935 int 11936 lpfc_fof_queue_create(struct lpfc_hba *phba) 11937 { 11938 struct lpfc_queue *qdesc; 11939 11940 /* Create FOF EQ */ 11941 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 11942 phba->sli4_hba.eq_ecount); 11943 if (!qdesc) 11944 goto out_error; 11945 11946 phba->sli4_hba.fof_eq = qdesc; 11947 11948 if (phba->cfg_fof) { 11949 11950 /* Create OAS CQ */ 11951 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 11952 phba->sli4_hba.cq_ecount); 11953 if (!qdesc) 11954 goto out_error; 11955 11956 phba->sli4_hba.oas_cq = qdesc; 11957 11958 /* Create OAS WQ */ 11959 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 11960 phba->sli4_hba.wq_ecount); 11961 if (!qdesc) 11962 goto out_error; 11963 11964 phba->sli4_hba.oas_wq = qdesc; 11965 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 11966 11967 } 11968 return 0; 11969 11970 out_error: 11971 lpfc_fof_queue_destroy(phba); 11972 return -ENOMEM; 11973 } 11974 11975 /** 11976 * lpfc_fof_queue_destroy - Destroy all the fof queues 11977 * @phba: pointer to lpfc hba data structure. 11978 * 11979 * This routine is invoked to release all the SLI4 queues with the FC HBA 11980 * operation. 11981 * 11982 * Return codes 11983 * 0 - successful 11984 **/ 11985 int 11986 lpfc_fof_queue_destroy(struct lpfc_hba *phba) 11987 { 11988 /* Release FOF Event queue */ 11989 if (phba->sli4_hba.fof_eq != NULL) { 11990 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq); 11991 phba->sli4_hba.fof_eq = NULL; 11992 } 11993 11994 /* Release OAS Completion queue */ 11995 if (phba->sli4_hba.oas_cq != NULL) { 11996 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq); 11997 phba->sli4_hba.oas_cq = NULL; 11998 } 11999 12000 /* Release OAS Work queue */ 12001 if (phba->sli4_hba.oas_wq != NULL) { 12002 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq); 12003 phba->sli4_hba.oas_wq = NULL; 12004 } 12005 return 0; 12006 } 12007 12008 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 12009 12010 static const struct pci_error_handlers lpfc_err_handler = { 12011 .error_detected = lpfc_io_error_detected, 12012 .slot_reset = lpfc_io_slot_reset, 12013 .resume = lpfc_io_resume, 12014 }; 12015 12016 static struct pci_driver lpfc_driver = { 12017 .name = LPFC_DRIVER_NAME, 12018 .id_table = lpfc_id_table, 12019 .probe = lpfc_pci_probe_one, 12020 .remove = lpfc_pci_remove_one, 12021 .suspend = lpfc_pci_suspend_one, 12022 .resume = lpfc_pci_resume_one, 12023 .err_handler = &lpfc_err_handler, 12024 }; 12025 12026 static const struct file_operations lpfc_mgmt_fop = { 12027 .owner = THIS_MODULE, 12028 }; 12029 12030 static struct miscdevice lpfc_mgmt_dev = { 12031 .minor = MISC_DYNAMIC_MINOR, 12032 .name = "lpfcmgmt", 12033 .fops = &lpfc_mgmt_fop, 12034 }; 12035 12036 /** 12037 * lpfc_init - lpfc module initialization routine 12038 * 12039 * This routine is to be invoked when the lpfc module is loaded into the 12040 * kernel. The special kernel macro module_init() is used to indicate the 12041 * role of this routine to the kernel as lpfc module entry point. 12042 * 12043 * Return codes 12044 * 0 - successful 12045 * -ENOMEM - FC attach transport failed 12046 * all others - failed 12047 */ 12048 static int __init 12049 lpfc_init(void) 12050 { 12051 int error = 0; 12052 12053 printk(LPFC_MODULE_DESC "\n"); 12054 printk(LPFC_COPYRIGHT "\n"); 12055 12056 error = misc_register(&lpfc_mgmt_dev); 12057 if (error) 12058 printk(KERN_ERR "Could not register lpfcmgmt device, " 12059 "misc_register returned with status %d", error); 12060 12061 lpfc_transport_functions.vport_create = lpfc_vport_create; 12062 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 12063 lpfc_transport_template = 12064 fc_attach_transport(&lpfc_transport_functions); 12065 if (lpfc_transport_template == NULL) 12066 return -ENOMEM; 12067 lpfc_vport_transport_template = 12068 fc_attach_transport(&lpfc_vport_transport_functions); 12069 if (lpfc_vport_transport_template == NULL) { 12070 fc_release_transport(lpfc_transport_template); 12071 return -ENOMEM; 12072 } 12073 12074 /* Initialize in case vector mapping is needed */ 12075 lpfc_used_cpu = NULL; 12076 lpfc_present_cpu = num_present_cpus(); 12077 12078 error = pci_register_driver(&lpfc_driver); 12079 if (error) { 12080 fc_release_transport(lpfc_transport_template); 12081 fc_release_transport(lpfc_vport_transport_template); 12082 } 12083 12084 return error; 12085 } 12086 12087 /** 12088 * lpfc_exit - lpfc module removal routine 12089 * 12090 * This routine is invoked when the lpfc module is removed from the kernel. 12091 * The special kernel macro module_exit() is used to indicate the role of 12092 * this routine to the kernel as lpfc module exit point. 12093 */ 12094 static void __exit 12095 lpfc_exit(void) 12096 { 12097 misc_deregister(&lpfc_mgmt_dev); 12098 pci_unregister_driver(&lpfc_driver); 12099 fc_release_transport(lpfc_transport_template); 12100 fc_release_transport(lpfc_vport_transport_template); 12101 if (_dump_buf_data) { 12102 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 12103 "_dump_buf_data at 0x%p\n", 12104 (1L << _dump_buf_data_order), _dump_buf_data); 12105 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 12106 } 12107 12108 if (_dump_buf_dif) { 12109 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 12110 "_dump_buf_dif at 0x%p\n", 12111 (1L << _dump_buf_dif_order), _dump_buf_dif); 12112 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 12113 } 12114 kfree(lpfc_used_cpu); 12115 idr_destroy(&lpfc_hba_index); 12116 } 12117 12118 module_init(lpfc_init); 12119 module_exit(lpfc_exit); 12120 MODULE_LICENSE("GPL"); 12121 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 12122 MODULE_AUTHOR("Broadcom"); 12123 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 12124