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 #include <linux/bitops.h> 41 42 #include <scsi/scsi.h> 43 #include <scsi/scsi_device.h> 44 #include <scsi/scsi_host.h> 45 #include <scsi/scsi_transport_fc.h> 46 #include <scsi/scsi_tcq.h> 47 #include <scsi/fc/fc_fs.h> 48 49 #include <linux/nvme-fc-driver.h> 50 51 #include "lpfc_hw4.h" 52 #include "lpfc_hw.h" 53 #include "lpfc_sli.h" 54 #include "lpfc_sli4.h" 55 #include "lpfc_nl.h" 56 #include "lpfc_disc.h" 57 #include "lpfc.h" 58 #include "lpfc_scsi.h" 59 #include "lpfc_nvme.h" 60 #include "lpfc_nvmet.h" 61 #include "lpfc_logmsg.h" 62 #include "lpfc_crtn.h" 63 #include "lpfc_vport.h" 64 #include "lpfc_version.h" 65 #include "lpfc_ids.h" 66 67 char *_dump_buf_data; 68 unsigned long _dump_buf_data_order; 69 char *_dump_buf_dif; 70 unsigned long _dump_buf_dif_order; 71 spinlock_t _dump_buf_lock; 72 73 /* Used when mapping IRQ vectors in a driver centric manner */ 74 uint16_t *lpfc_used_cpu; 75 uint32_t lpfc_present_cpu; 76 77 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 78 static int lpfc_post_rcv_buf(struct lpfc_hba *); 79 static int lpfc_sli4_queue_verify(struct lpfc_hba *); 80 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 81 static int lpfc_setup_endian_order(struct lpfc_hba *); 82 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 83 static void lpfc_free_els_sgl_list(struct lpfc_hba *); 84 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *); 85 static void lpfc_init_sgl_list(struct lpfc_hba *); 86 static int lpfc_init_active_sgl_array(struct lpfc_hba *); 87 static void lpfc_free_active_sgl(struct lpfc_hba *); 88 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 89 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 90 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 91 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 92 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 93 static void lpfc_sli4_disable_intr(struct lpfc_hba *); 94 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t); 95 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba); 96 97 static struct scsi_transport_template *lpfc_transport_template = NULL; 98 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 99 static DEFINE_IDR(lpfc_hba_index); 100 #define LPFC_NVMET_BUF_POST 254 101 102 /** 103 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 104 * @phba: pointer to lpfc hba data structure. 105 * 106 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 107 * mailbox command. It retrieves the revision information from the HBA and 108 * collects the Vital Product Data (VPD) about the HBA for preparing the 109 * configuration of the HBA. 110 * 111 * Return codes: 112 * 0 - success. 113 * -ERESTART - requests the SLI layer to reset the HBA and try again. 114 * Any other value - indicates an error. 115 **/ 116 int 117 lpfc_config_port_prep(struct lpfc_hba *phba) 118 { 119 lpfc_vpd_t *vp = &phba->vpd; 120 int i = 0, rc; 121 LPFC_MBOXQ_t *pmb; 122 MAILBOX_t *mb; 123 char *lpfc_vpd_data = NULL; 124 uint16_t offset = 0; 125 static char licensed[56] = 126 "key unlock for use with gnu public licensed code only\0"; 127 static int init_key = 1; 128 129 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 130 if (!pmb) { 131 phba->link_state = LPFC_HBA_ERROR; 132 return -ENOMEM; 133 } 134 135 mb = &pmb->u.mb; 136 phba->link_state = LPFC_INIT_MBX_CMDS; 137 138 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 139 if (init_key) { 140 uint32_t *ptext = (uint32_t *) licensed; 141 142 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 143 *ptext = cpu_to_be32(*ptext); 144 init_key = 0; 145 } 146 147 lpfc_read_nv(phba, pmb); 148 memset((char*)mb->un.varRDnvp.rsvd3, 0, 149 sizeof (mb->un.varRDnvp.rsvd3)); 150 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 151 sizeof (licensed)); 152 153 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 154 155 if (rc != MBX_SUCCESS) { 156 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 157 "0324 Config Port initialization " 158 "error, mbxCmd x%x READ_NVPARM, " 159 "mbxStatus x%x\n", 160 mb->mbxCommand, mb->mbxStatus); 161 mempool_free(pmb, phba->mbox_mem_pool); 162 return -ERESTART; 163 } 164 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 165 sizeof(phba->wwnn)); 166 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 167 sizeof(phba->wwpn)); 168 } 169 170 phba->sli3_options = 0x0; 171 172 /* Setup and issue mailbox READ REV command */ 173 lpfc_read_rev(phba, pmb); 174 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 175 if (rc != MBX_SUCCESS) { 176 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 177 "0439 Adapter failed to init, mbxCmd x%x " 178 "READ_REV, mbxStatus x%x\n", 179 mb->mbxCommand, mb->mbxStatus); 180 mempool_free( pmb, phba->mbox_mem_pool); 181 return -ERESTART; 182 } 183 184 185 /* 186 * The value of rr must be 1 since the driver set the cv field to 1. 187 * This setting requires the FW to set all revision fields. 188 */ 189 if (mb->un.varRdRev.rr == 0) { 190 vp->rev.rBit = 0; 191 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 192 "0440 Adapter failed to init, READ_REV has " 193 "missing revision information.\n"); 194 mempool_free(pmb, phba->mbox_mem_pool); 195 return -ERESTART; 196 } 197 198 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 199 mempool_free(pmb, phba->mbox_mem_pool); 200 return -EINVAL; 201 } 202 203 /* Save information as VPD data */ 204 vp->rev.rBit = 1; 205 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 206 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 207 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 208 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 209 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 210 vp->rev.biuRev = mb->un.varRdRev.biuRev; 211 vp->rev.smRev = mb->un.varRdRev.smRev; 212 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 213 vp->rev.endecRev = mb->un.varRdRev.endecRev; 214 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 215 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 216 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 217 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 218 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 219 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 220 221 /* If the sli feature level is less then 9, we must 222 * tear down all RPIs and VPIs on link down if NPIV 223 * is enabled. 224 */ 225 if (vp->rev.feaLevelHigh < 9) 226 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 227 228 if (lpfc_is_LC_HBA(phba->pcidev->device)) 229 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 230 sizeof (phba->RandomData)); 231 232 /* Get adapter VPD information */ 233 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 234 if (!lpfc_vpd_data) 235 goto out_free_mbox; 236 do { 237 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 238 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 239 240 if (rc != MBX_SUCCESS) { 241 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 242 "0441 VPD not present on adapter, " 243 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 244 mb->mbxCommand, mb->mbxStatus); 245 mb->un.varDmp.word_cnt = 0; 246 } 247 /* dump mem may return a zero when finished or we got a 248 * mailbox error, either way we are done. 249 */ 250 if (mb->un.varDmp.word_cnt == 0) 251 break; 252 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 253 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 254 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 255 lpfc_vpd_data + offset, 256 mb->un.varDmp.word_cnt); 257 offset += mb->un.varDmp.word_cnt; 258 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 259 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 260 261 kfree(lpfc_vpd_data); 262 out_free_mbox: 263 mempool_free(pmb, phba->mbox_mem_pool); 264 return 0; 265 } 266 267 /** 268 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 269 * @phba: pointer to lpfc hba data structure. 270 * @pmboxq: pointer to the driver internal queue element for mailbox command. 271 * 272 * This is the completion handler for driver's configuring asynchronous event 273 * mailbox command to the device. If the mailbox command returns successfully, 274 * it will set internal async event support flag to 1; otherwise, it will 275 * set internal async event support flag to 0. 276 **/ 277 static void 278 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 279 { 280 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 281 phba->temp_sensor_support = 1; 282 else 283 phba->temp_sensor_support = 0; 284 mempool_free(pmboxq, phba->mbox_mem_pool); 285 return; 286 } 287 288 /** 289 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 290 * @phba: pointer to lpfc hba data structure. 291 * @pmboxq: pointer to the driver internal queue element for mailbox command. 292 * 293 * This is the completion handler for dump mailbox command for getting 294 * wake up parameters. When this command complete, the response contain 295 * Option rom version of the HBA. This function translate the version number 296 * into a human readable string and store it in OptionROMVersion. 297 **/ 298 static void 299 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 300 { 301 struct prog_id *prg; 302 uint32_t prog_id_word; 303 char dist = ' '; 304 /* character array used for decoding dist type. */ 305 char dist_char[] = "nabx"; 306 307 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 308 mempool_free(pmboxq, phba->mbox_mem_pool); 309 return; 310 } 311 312 prg = (struct prog_id *) &prog_id_word; 313 314 /* word 7 contain option rom version */ 315 prog_id_word = pmboxq->u.mb.un.varWords[7]; 316 317 /* Decode the Option rom version word to a readable string */ 318 if (prg->dist < 4) 319 dist = dist_char[prg->dist]; 320 321 if ((prg->dist == 3) && (prg->num == 0)) 322 snprintf(phba->OptionROMVersion, 32, "%d.%d%d", 323 prg->ver, prg->rev, prg->lev); 324 else 325 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d", 326 prg->ver, prg->rev, prg->lev, 327 dist, prg->num); 328 mempool_free(pmboxq, phba->mbox_mem_pool); 329 return; 330 } 331 332 /** 333 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 334 * cfg_soft_wwnn, cfg_soft_wwpn 335 * @vport: pointer to lpfc vport data structure. 336 * 337 * 338 * Return codes 339 * None. 340 **/ 341 void 342 lpfc_update_vport_wwn(struct lpfc_vport *vport) 343 { 344 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; 345 u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0]; 346 347 /* If the soft name exists then update it using the service params */ 348 if (vport->phba->cfg_soft_wwnn) 349 u64_to_wwn(vport->phba->cfg_soft_wwnn, 350 vport->fc_sparam.nodeName.u.wwn); 351 if (vport->phba->cfg_soft_wwpn) 352 u64_to_wwn(vport->phba->cfg_soft_wwpn, 353 vport->fc_sparam.portName.u.wwn); 354 355 /* 356 * If the name is empty or there exists a soft name 357 * then copy the service params name, otherwise use the fc name 358 */ 359 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 360 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 361 sizeof(struct lpfc_name)); 362 else 363 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 364 sizeof(struct lpfc_name)); 365 366 /* 367 * If the port name has changed, then set the Param changes flag 368 * to unreg the login 369 */ 370 if (vport->fc_portname.u.wwn[0] != 0 && 371 memcmp(&vport->fc_portname, &vport->fc_sparam.portName, 372 sizeof(struct lpfc_name))) 373 vport->vport_flag |= FAWWPN_PARAM_CHG; 374 375 if (vport->fc_portname.u.wwn[0] == 0 || 376 vport->phba->cfg_soft_wwpn || 377 (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) || 378 vport->vport_flag & FAWWPN_SET) { 379 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 380 sizeof(struct lpfc_name)); 381 vport->vport_flag &= ~FAWWPN_SET; 382 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) 383 vport->vport_flag |= FAWWPN_SET; 384 } 385 else 386 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 387 sizeof(struct lpfc_name)); 388 } 389 390 /** 391 * lpfc_config_port_post - Perform lpfc initialization after config port 392 * @phba: pointer to lpfc hba data structure. 393 * 394 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 395 * command call. It performs all internal resource and state setups on the 396 * port: post IOCB buffers, enable appropriate host interrupt attentions, 397 * ELS ring timers, etc. 398 * 399 * Return codes 400 * 0 - success. 401 * Any other value - error. 402 **/ 403 int 404 lpfc_config_port_post(struct lpfc_hba *phba) 405 { 406 struct lpfc_vport *vport = phba->pport; 407 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 408 LPFC_MBOXQ_t *pmb; 409 MAILBOX_t *mb; 410 struct lpfc_dmabuf *mp; 411 struct lpfc_sli *psli = &phba->sli; 412 uint32_t status, timeout; 413 int i, j; 414 int rc; 415 416 spin_lock_irq(&phba->hbalock); 417 /* 418 * If the Config port completed correctly the HBA is not 419 * over heated any more. 420 */ 421 if (phba->over_temp_state == HBA_OVER_TEMP) 422 phba->over_temp_state = HBA_NORMAL_TEMP; 423 spin_unlock_irq(&phba->hbalock); 424 425 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 426 if (!pmb) { 427 phba->link_state = LPFC_HBA_ERROR; 428 return -ENOMEM; 429 } 430 mb = &pmb->u.mb; 431 432 /* Get login parameters for NID. */ 433 rc = lpfc_read_sparam(phba, pmb, 0); 434 if (rc) { 435 mempool_free(pmb, phba->mbox_mem_pool); 436 return -ENOMEM; 437 } 438 439 pmb->vport = vport; 440 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 441 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 442 "0448 Adapter failed init, mbxCmd x%x " 443 "READ_SPARM mbxStatus x%x\n", 444 mb->mbxCommand, mb->mbxStatus); 445 phba->link_state = LPFC_HBA_ERROR; 446 mp = (struct lpfc_dmabuf *) pmb->context1; 447 mempool_free(pmb, phba->mbox_mem_pool); 448 lpfc_mbuf_free(phba, mp->virt, mp->phys); 449 kfree(mp); 450 return -EIO; 451 } 452 453 mp = (struct lpfc_dmabuf *) pmb->context1; 454 455 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 456 lpfc_mbuf_free(phba, mp->virt, mp->phys); 457 kfree(mp); 458 pmb->context1 = NULL; 459 lpfc_update_vport_wwn(vport); 460 461 /* Update the fc_host data structures with new wwn. */ 462 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 463 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 464 fc_host_max_npiv_vports(shost) = phba->max_vpi; 465 466 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 467 /* This should be consolidated into parse_vpd ? - mr */ 468 if (phba->SerialNumber[0] == 0) { 469 uint8_t *outptr; 470 471 outptr = &vport->fc_nodename.u.s.IEEE[0]; 472 for (i = 0; i < 12; i++) { 473 status = *outptr++; 474 j = ((status & 0xf0) >> 4); 475 if (j <= 9) 476 phba->SerialNumber[i] = 477 (char)((uint8_t) 0x30 + (uint8_t) j); 478 else 479 phba->SerialNumber[i] = 480 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 481 i++; 482 j = (status & 0xf); 483 if (j <= 9) 484 phba->SerialNumber[i] = 485 (char)((uint8_t) 0x30 + (uint8_t) j); 486 else 487 phba->SerialNumber[i] = 488 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 489 } 490 } 491 492 lpfc_read_config(phba, pmb); 493 pmb->vport = vport; 494 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 495 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 496 "0453 Adapter failed to init, mbxCmd x%x " 497 "READ_CONFIG, mbxStatus x%x\n", 498 mb->mbxCommand, mb->mbxStatus); 499 phba->link_state = LPFC_HBA_ERROR; 500 mempool_free( pmb, phba->mbox_mem_pool); 501 return -EIO; 502 } 503 504 /* Check if the port is disabled */ 505 lpfc_sli_read_link_ste(phba); 506 507 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 508 i = (mb->un.varRdConfig.max_xri + 1); 509 if (phba->cfg_hba_queue_depth > i) { 510 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 511 "3359 HBA queue depth changed from %d to %d\n", 512 phba->cfg_hba_queue_depth, i); 513 phba->cfg_hba_queue_depth = i; 514 } 515 516 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */ 517 i = (mb->un.varRdConfig.max_xri >> 3); 518 if (phba->pport->cfg_lun_queue_depth > i) { 519 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 520 "3360 LUN queue depth changed from %d to %d\n", 521 phba->pport->cfg_lun_queue_depth, i); 522 phba->pport->cfg_lun_queue_depth = i; 523 } 524 525 phba->lmt = mb->un.varRdConfig.lmt; 526 527 /* Get the default values for Model Name and Description */ 528 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 529 530 phba->link_state = LPFC_LINK_DOWN; 531 532 /* Only process IOCBs on ELS ring till hba_state is READY */ 533 if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr) 534 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT; 535 if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr) 536 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT; 537 538 /* Post receive buffers for desired rings */ 539 if (phba->sli_rev != 3) 540 lpfc_post_rcv_buf(phba); 541 542 /* 543 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 544 */ 545 if (phba->intr_type == MSIX) { 546 rc = lpfc_config_msi(phba, pmb); 547 if (rc) { 548 mempool_free(pmb, phba->mbox_mem_pool); 549 return -EIO; 550 } 551 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 552 if (rc != MBX_SUCCESS) { 553 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 554 "0352 Config MSI mailbox command " 555 "failed, mbxCmd x%x, mbxStatus x%x\n", 556 pmb->u.mb.mbxCommand, 557 pmb->u.mb.mbxStatus); 558 mempool_free(pmb, phba->mbox_mem_pool); 559 return -EIO; 560 } 561 } 562 563 spin_lock_irq(&phba->hbalock); 564 /* Initialize ERATT handling flag */ 565 phba->hba_flag &= ~HBA_ERATT_HANDLED; 566 567 /* Enable appropriate host interrupts */ 568 if (lpfc_readl(phba->HCregaddr, &status)) { 569 spin_unlock_irq(&phba->hbalock); 570 return -EIO; 571 } 572 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 573 if (psli->num_rings > 0) 574 status |= HC_R0INT_ENA; 575 if (psli->num_rings > 1) 576 status |= HC_R1INT_ENA; 577 if (psli->num_rings > 2) 578 status |= HC_R2INT_ENA; 579 if (psli->num_rings > 3) 580 status |= HC_R3INT_ENA; 581 582 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 583 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 584 status &= ~(HC_R0INT_ENA); 585 586 writel(status, phba->HCregaddr); 587 readl(phba->HCregaddr); /* flush */ 588 spin_unlock_irq(&phba->hbalock); 589 590 /* Set up ring-0 (ELS) timer */ 591 timeout = phba->fc_ratov * 2; 592 mod_timer(&vport->els_tmofunc, 593 jiffies + msecs_to_jiffies(1000 * timeout)); 594 /* Set up heart beat (HB) timer */ 595 mod_timer(&phba->hb_tmofunc, 596 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 597 phba->hb_outstanding = 0; 598 phba->last_completion_time = jiffies; 599 /* Set up error attention (ERATT) polling timer */ 600 mod_timer(&phba->eratt_poll, 601 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval)); 602 603 if (phba->hba_flag & LINK_DISABLED) { 604 lpfc_printf_log(phba, 605 KERN_ERR, LOG_INIT, 606 "2598 Adapter Link is disabled.\n"); 607 lpfc_down_link(phba, pmb); 608 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 609 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 610 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 611 lpfc_printf_log(phba, 612 KERN_ERR, LOG_INIT, 613 "2599 Adapter failed to issue DOWN_LINK" 614 " mbox command rc 0x%x\n", rc); 615 616 mempool_free(pmb, phba->mbox_mem_pool); 617 return -EIO; 618 } 619 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 620 mempool_free(pmb, phba->mbox_mem_pool); 621 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 622 if (rc) 623 return rc; 624 } 625 /* MBOX buffer will be freed in mbox compl */ 626 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 627 if (!pmb) { 628 phba->link_state = LPFC_HBA_ERROR; 629 return -ENOMEM; 630 } 631 632 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 633 pmb->mbox_cmpl = lpfc_config_async_cmpl; 634 pmb->vport = phba->pport; 635 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 636 637 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 638 lpfc_printf_log(phba, 639 KERN_ERR, 640 LOG_INIT, 641 "0456 Adapter failed to issue " 642 "ASYNCEVT_ENABLE mbox status x%x\n", 643 rc); 644 mempool_free(pmb, phba->mbox_mem_pool); 645 } 646 647 /* Get Option rom version */ 648 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 649 if (!pmb) { 650 phba->link_state = LPFC_HBA_ERROR; 651 return -ENOMEM; 652 } 653 654 lpfc_dump_wakeup_param(phba, pmb); 655 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 656 pmb->vport = phba->pport; 657 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 658 659 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 660 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 661 "to get Option ROM version status x%x\n", rc); 662 mempool_free(pmb, phba->mbox_mem_pool); 663 } 664 665 return 0; 666 } 667 668 /** 669 * lpfc_hba_init_link - Initialize the FC link 670 * @phba: pointer to lpfc hba data structure. 671 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 672 * 673 * This routine will issue the INIT_LINK mailbox command call. 674 * It is available to other drivers through the lpfc_hba data 675 * structure for use as a delayed link up mechanism with the 676 * module parameter lpfc_suppress_link_up. 677 * 678 * Return code 679 * 0 - success 680 * Any other value - error 681 **/ 682 static int 683 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 684 { 685 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); 686 } 687 688 /** 689 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology 690 * @phba: pointer to lpfc hba data structure. 691 * @fc_topology: desired fc topology. 692 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 693 * 694 * This routine will issue the INIT_LINK mailbox command call. 695 * It is available to other drivers through the lpfc_hba data 696 * structure for use as a delayed link up mechanism with the 697 * module parameter lpfc_suppress_link_up. 698 * 699 * Return code 700 * 0 - success 701 * Any other value - error 702 **/ 703 int 704 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, 705 uint32_t flag) 706 { 707 struct lpfc_vport *vport = phba->pport; 708 LPFC_MBOXQ_t *pmb; 709 MAILBOX_t *mb; 710 int rc; 711 712 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 713 if (!pmb) { 714 phba->link_state = LPFC_HBA_ERROR; 715 return -ENOMEM; 716 } 717 mb = &pmb->u.mb; 718 pmb->vport = vport; 719 720 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || 721 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && 722 !(phba->lmt & LMT_1Gb)) || 723 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && 724 !(phba->lmt & LMT_2Gb)) || 725 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && 726 !(phba->lmt & LMT_4Gb)) || 727 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && 728 !(phba->lmt & LMT_8Gb)) || 729 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && 730 !(phba->lmt & LMT_10Gb)) || 731 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && 732 !(phba->lmt & LMT_16Gb)) || 733 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) && 734 !(phba->lmt & LMT_32Gb))) { 735 /* Reset link speed to auto */ 736 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 737 "1302 Invalid speed for this board:%d " 738 "Reset link speed to auto.\n", 739 phba->cfg_link_speed); 740 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 741 } 742 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); 743 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 744 if (phba->sli_rev < LPFC_SLI_REV4) 745 lpfc_set_loopback_flag(phba); 746 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 747 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 748 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 749 "0498 Adapter failed to init, mbxCmd x%x " 750 "INIT_LINK, mbxStatus x%x\n", 751 mb->mbxCommand, mb->mbxStatus); 752 if (phba->sli_rev <= LPFC_SLI_REV3) { 753 /* Clear all interrupt enable conditions */ 754 writel(0, phba->HCregaddr); 755 readl(phba->HCregaddr); /* flush */ 756 /* Clear all pending interrupts */ 757 writel(0xffffffff, phba->HAregaddr); 758 readl(phba->HAregaddr); /* flush */ 759 } 760 phba->link_state = LPFC_HBA_ERROR; 761 if (rc != MBX_BUSY || flag == MBX_POLL) 762 mempool_free(pmb, phba->mbox_mem_pool); 763 return -EIO; 764 } 765 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 766 if (flag == MBX_POLL) 767 mempool_free(pmb, phba->mbox_mem_pool); 768 769 return 0; 770 } 771 772 /** 773 * lpfc_hba_down_link - this routine downs the FC link 774 * @phba: pointer to lpfc hba data structure. 775 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 776 * 777 * This routine will issue the DOWN_LINK mailbox command call. 778 * It is available to other drivers through the lpfc_hba data 779 * structure for use to stop the link. 780 * 781 * Return code 782 * 0 - success 783 * Any other value - error 784 **/ 785 static int 786 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 787 { 788 LPFC_MBOXQ_t *pmb; 789 int rc; 790 791 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 792 if (!pmb) { 793 phba->link_state = LPFC_HBA_ERROR; 794 return -ENOMEM; 795 } 796 797 lpfc_printf_log(phba, 798 KERN_ERR, LOG_INIT, 799 "0491 Adapter Link is disabled.\n"); 800 lpfc_down_link(phba, pmb); 801 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 802 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 803 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 804 lpfc_printf_log(phba, 805 KERN_ERR, LOG_INIT, 806 "2522 Adapter failed to issue DOWN_LINK" 807 " mbox command rc 0x%x\n", rc); 808 809 mempool_free(pmb, phba->mbox_mem_pool); 810 return -EIO; 811 } 812 if (flag == MBX_POLL) 813 mempool_free(pmb, phba->mbox_mem_pool); 814 815 return 0; 816 } 817 818 /** 819 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 820 * @phba: pointer to lpfc HBA data structure. 821 * 822 * This routine will do LPFC uninitialization before the HBA is reset when 823 * bringing down the SLI Layer. 824 * 825 * Return codes 826 * 0 - success. 827 * Any other value - error. 828 **/ 829 int 830 lpfc_hba_down_prep(struct lpfc_hba *phba) 831 { 832 struct lpfc_vport **vports; 833 int i; 834 835 if (phba->sli_rev <= LPFC_SLI_REV3) { 836 /* Disable interrupts */ 837 writel(0, phba->HCregaddr); 838 readl(phba->HCregaddr); /* flush */ 839 } 840 841 if (phba->pport->load_flag & FC_UNLOADING) 842 lpfc_cleanup_discovery_resources(phba->pport); 843 else { 844 vports = lpfc_create_vport_work_array(phba); 845 if (vports != NULL) 846 for (i = 0; i <= phba->max_vports && 847 vports[i] != NULL; i++) 848 lpfc_cleanup_discovery_resources(vports[i]); 849 lpfc_destroy_vport_work_array(phba, vports); 850 } 851 return 0; 852 } 853 854 /** 855 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free 856 * rspiocb which got deferred 857 * 858 * @phba: pointer to lpfc HBA data structure. 859 * 860 * This routine will cleanup completed slow path events after HBA is reset 861 * when bringing down the SLI Layer. 862 * 863 * 864 * Return codes 865 * void. 866 **/ 867 static void 868 lpfc_sli4_free_sp_events(struct lpfc_hba *phba) 869 { 870 struct lpfc_iocbq *rspiocbq; 871 struct hbq_dmabuf *dmabuf; 872 struct lpfc_cq_event *cq_event; 873 874 spin_lock_irq(&phba->hbalock); 875 phba->hba_flag &= ~HBA_SP_QUEUE_EVT; 876 spin_unlock_irq(&phba->hbalock); 877 878 while (!list_empty(&phba->sli4_hba.sp_queue_event)) { 879 /* Get the response iocb from the head of work queue */ 880 spin_lock_irq(&phba->hbalock); 881 list_remove_head(&phba->sli4_hba.sp_queue_event, 882 cq_event, struct lpfc_cq_event, list); 883 spin_unlock_irq(&phba->hbalock); 884 885 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) { 886 case CQE_CODE_COMPL_WQE: 887 rspiocbq = container_of(cq_event, struct lpfc_iocbq, 888 cq_event); 889 lpfc_sli_release_iocbq(phba, rspiocbq); 890 break; 891 case CQE_CODE_RECEIVE: 892 case CQE_CODE_RECEIVE_V1: 893 dmabuf = container_of(cq_event, struct hbq_dmabuf, 894 cq_event); 895 lpfc_in_buf_free(phba, &dmabuf->dbuf); 896 } 897 } 898 } 899 900 /** 901 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset 902 * @phba: pointer to lpfc HBA data structure. 903 * 904 * This routine will cleanup posted ELS buffers after the HBA is reset 905 * when bringing down the SLI Layer. 906 * 907 * 908 * Return codes 909 * void. 910 **/ 911 static void 912 lpfc_hba_free_post_buf(struct lpfc_hba *phba) 913 { 914 struct lpfc_sli *psli = &phba->sli; 915 struct lpfc_sli_ring *pring; 916 struct lpfc_dmabuf *mp, *next_mp; 917 LIST_HEAD(buflist); 918 int count; 919 920 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 921 lpfc_sli_hbqbuf_free_all(phba); 922 else { 923 /* Cleanup preposted buffers on the ELS ring */ 924 pring = &psli->sli3_ring[LPFC_ELS_RING]; 925 spin_lock_irq(&phba->hbalock); 926 list_splice_init(&pring->postbufq, &buflist); 927 spin_unlock_irq(&phba->hbalock); 928 929 count = 0; 930 list_for_each_entry_safe(mp, next_mp, &buflist, list) { 931 list_del(&mp->list); 932 count++; 933 lpfc_mbuf_free(phba, mp->virt, mp->phys); 934 kfree(mp); 935 } 936 937 spin_lock_irq(&phba->hbalock); 938 pring->postbufq_cnt -= count; 939 spin_unlock_irq(&phba->hbalock); 940 } 941 } 942 943 /** 944 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset 945 * @phba: pointer to lpfc HBA data structure. 946 * 947 * This routine will cleanup the txcmplq after the HBA is reset when bringing 948 * down the SLI Layer. 949 * 950 * Return codes 951 * void 952 **/ 953 static void 954 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba) 955 { 956 struct lpfc_sli *psli = &phba->sli; 957 struct lpfc_queue *qp = NULL; 958 struct lpfc_sli_ring *pring; 959 LIST_HEAD(completions); 960 int i; 961 962 if (phba->sli_rev != LPFC_SLI_REV4) { 963 for (i = 0; i < psli->num_rings; i++) { 964 pring = &psli->sli3_ring[i]; 965 spin_lock_irq(&phba->hbalock); 966 /* At this point in time the HBA is either reset or DOA 967 * Nothing should be on txcmplq as it will 968 * NEVER complete. 969 */ 970 list_splice_init(&pring->txcmplq, &completions); 971 pring->txcmplq_cnt = 0; 972 spin_unlock_irq(&phba->hbalock); 973 974 lpfc_sli_abort_iocb_ring(phba, pring); 975 } 976 /* Cancel all the IOCBs from the completions list */ 977 lpfc_sli_cancel_iocbs(phba, &completions, 978 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 979 return; 980 } 981 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 982 pring = qp->pring; 983 if (!pring) 984 continue; 985 spin_lock_irq(&pring->ring_lock); 986 list_splice_init(&pring->txcmplq, &completions); 987 pring->txcmplq_cnt = 0; 988 spin_unlock_irq(&pring->ring_lock); 989 lpfc_sli_abort_iocb_ring(phba, pring); 990 } 991 /* Cancel all the IOCBs from the completions list */ 992 lpfc_sli_cancel_iocbs(phba, &completions, 993 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 994 } 995 996 /** 997 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 998 int i; 999 * @phba: pointer to lpfc HBA data structure. 1000 * 1001 * This routine will do uninitialization after the HBA is reset when bring 1002 * down the SLI Layer. 1003 * 1004 * Return codes 1005 * 0 - success. 1006 * Any other value - error. 1007 **/ 1008 static int 1009 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 1010 { 1011 lpfc_hba_free_post_buf(phba); 1012 lpfc_hba_clean_txcmplq(phba); 1013 return 0; 1014 } 1015 1016 /** 1017 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 1018 * @phba: pointer to lpfc HBA data structure. 1019 * 1020 * This routine will do uninitialization after the HBA is reset when bring 1021 * down the SLI Layer. 1022 * 1023 * Return codes 1024 * 0 - success. 1025 * Any other value - error. 1026 **/ 1027 static int 1028 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 1029 { 1030 struct lpfc_scsi_buf *psb, *psb_next; 1031 struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next; 1032 LIST_HEAD(aborts); 1033 LIST_HEAD(nvme_aborts); 1034 LIST_HEAD(nvmet_aborts); 1035 unsigned long iflag = 0; 1036 struct lpfc_sglq *sglq_entry = NULL; 1037 1038 1039 lpfc_sli_hbqbuf_free_all(phba); 1040 lpfc_hba_clean_txcmplq(phba); 1041 1042 /* At this point in time the HBA is either reset or DOA. Either 1043 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 1044 * on the lpfc_els_sgl_list so that it can either be freed if the 1045 * driver is unloading or reposted if the driver is restarting 1046 * the port. 1047 */ 1048 spin_lock_irq(&phba->hbalock); /* required for lpfc_els_sgl_list and */ 1049 /* scsl_buf_list */ 1050 /* sgl_list_lock required because worker thread uses this 1051 * list. 1052 */ 1053 spin_lock(&phba->sli4_hba.sgl_list_lock); 1054 list_for_each_entry(sglq_entry, 1055 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 1056 sglq_entry->state = SGL_FREED; 1057 1058 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 1059 &phba->sli4_hba.lpfc_els_sgl_list); 1060 1061 1062 spin_unlock(&phba->sli4_hba.sgl_list_lock); 1063 /* abts_scsi_buf_list_lock required because worker thread uses this 1064 * list. 1065 */ 1066 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 1067 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 1068 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 1069 &aborts); 1070 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 1071 } 1072 1073 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 1074 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 1075 list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list, 1076 &nvme_aborts); 1077 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1078 &nvmet_aborts); 1079 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 1080 } 1081 1082 spin_unlock_irq(&phba->hbalock); 1083 1084 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 1085 psb->pCmd = NULL; 1086 psb->status = IOSTAT_SUCCESS; 1087 } 1088 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); 1089 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put); 1090 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); 1091 1092 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 1093 list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) { 1094 psb->pCmd = NULL; 1095 psb->status = IOSTAT_SUCCESS; 1096 } 1097 spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag); 1098 list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put); 1099 spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag); 1100 1101 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) { 1102 ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP); 1103 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf); 1104 } 1105 } 1106 1107 lpfc_sli4_free_sp_events(phba); 1108 return 0; 1109 } 1110 1111 /** 1112 * lpfc_hba_down_post - Wrapper func for hba down post routine 1113 * @phba: pointer to lpfc HBA data structure. 1114 * 1115 * This routine wraps the actual SLI3 or SLI4 routine for performing 1116 * uninitialization after the HBA is reset when bring down the SLI Layer. 1117 * 1118 * Return codes 1119 * 0 - success. 1120 * Any other value - error. 1121 **/ 1122 int 1123 lpfc_hba_down_post(struct lpfc_hba *phba) 1124 { 1125 return (*phba->lpfc_hba_down_post)(phba); 1126 } 1127 1128 /** 1129 * lpfc_hb_timeout - The HBA-timer timeout handler 1130 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1131 * 1132 * This is the HBA-timer timeout handler registered to the lpfc driver. When 1133 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 1134 * work-port-events bitmap and the worker thread is notified. This timeout 1135 * event will be used by the worker thread to invoke the actual timeout 1136 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 1137 * be performed in the timeout handler and the HBA timeout event bit shall 1138 * be cleared by the worker thread after it has taken the event bitmap out. 1139 **/ 1140 static void 1141 lpfc_hb_timeout(struct timer_list *t) 1142 { 1143 struct lpfc_hba *phba; 1144 uint32_t tmo_posted; 1145 unsigned long iflag; 1146 1147 phba = from_timer(phba, t, hb_tmofunc); 1148 1149 /* Check for heart beat timeout conditions */ 1150 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1151 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 1152 if (!tmo_posted) 1153 phba->pport->work_port_events |= WORKER_HB_TMO; 1154 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1155 1156 /* Tell the worker thread there is work to do */ 1157 if (!tmo_posted) 1158 lpfc_worker_wake_up(phba); 1159 return; 1160 } 1161 1162 /** 1163 * lpfc_rrq_timeout - The RRQ-timer timeout handler 1164 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1165 * 1166 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 1167 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 1168 * work-port-events bitmap and the worker thread is notified. This timeout 1169 * event will be used by the worker thread to invoke the actual timeout 1170 * handler routine, lpfc_rrq_handler. Any periodical operations will 1171 * be performed in the timeout handler and the RRQ timeout event bit shall 1172 * be cleared by the worker thread after it has taken the event bitmap out. 1173 **/ 1174 static void 1175 lpfc_rrq_timeout(struct timer_list *t) 1176 { 1177 struct lpfc_hba *phba; 1178 unsigned long iflag; 1179 1180 phba = from_timer(phba, t, rrq_tmr); 1181 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1182 if (!(phba->pport->load_flag & FC_UNLOADING)) 1183 phba->hba_flag |= HBA_RRQ_ACTIVE; 1184 else 1185 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 1186 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1187 1188 if (!(phba->pport->load_flag & FC_UNLOADING)) 1189 lpfc_worker_wake_up(phba); 1190 } 1191 1192 /** 1193 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 1194 * @phba: pointer to lpfc hba data structure. 1195 * @pmboxq: pointer to the driver internal queue element for mailbox command. 1196 * 1197 * This is the callback function to the lpfc heart-beat mailbox command. 1198 * If configured, the lpfc driver issues the heart-beat mailbox command to 1199 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 1200 * heart-beat mailbox command is issued, the driver shall set up heart-beat 1201 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 1202 * heart-beat outstanding state. Once the mailbox command comes back and 1203 * no error conditions detected, the heart-beat mailbox command timer is 1204 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1205 * state is cleared for the next heart-beat. If the timer expired with the 1206 * heart-beat outstanding state set, the driver will put the HBA offline. 1207 **/ 1208 static void 1209 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1210 { 1211 unsigned long drvr_flag; 1212 1213 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1214 phba->hb_outstanding = 0; 1215 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1216 1217 /* Check and reset heart-beat timer is necessary */ 1218 mempool_free(pmboxq, phba->mbox_mem_pool); 1219 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1220 !(phba->link_state == LPFC_HBA_ERROR) && 1221 !(phba->pport->load_flag & FC_UNLOADING)) 1222 mod_timer(&phba->hb_tmofunc, 1223 jiffies + 1224 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1225 return; 1226 } 1227 1228 /** 1229 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1230 * @phba: pointer to lpfc hba data structure. 1231 * 1232 * This is the actual HBA-timer timeout handler to be invoked by the worker 1233 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1234 * handler performs any periodic operations needed for the device. If such 1235 * periodic event has already been attended to either in the interrupt handler 1236 * or by processing slow-ring or fast-ring events within the HBA-timer 1237 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1238 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1239 * is configured and there is no heart-beat mailbox command outstanding, a 1240 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1241 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1242 * to offline. 1243 **/ 1244 void 1245 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1246 { 1247 struct lpfc_vport **vports; 1248 LPFC_MBOXQ_t *pmboxq; 1249 struct lpfc_dmabuf *buf_ptr; 1250 int retval, i; 1251 struct lpfc_sli *psli = &phba->sli; 1252 LIST_HEAD(completions); 1253 struct lpfc_queue *qp; 1254 unsigned long time_elapsed; 1255 uint32_t tick_cqe, max_cqe, val; 1256 uint64_t tot, data1, data2, data3; 1257 struct lpfc_nvmet_tgtport *tgtp; 1258 struct lpfc_register reg_data; 1259 void __iomem *eqdreg = phba->sli4_hba.u.if_type2.EQDregaddr; 1260 1261 vports = lpfc_create_vport_work_array(phba); 1262 if (vports != NULL) 1263 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 1264 lpfc_rcv_seq_check_edtov(vports[i]); 1265 lpfc_fdmi_num_disc_check(vports[i]); 1266 } 1267 lpfc_destroy_vport_work_array(phba, vports); 1268 1269 if ((phba->link_state == LPFC_HBA_ERROR) || 1270 (phba->pport->load_flag & FC_UNLOADING) || 1271 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1272 return; 1273 1274 if (phba->cfg_auto_imax) { 1275 if (!phba->last_eqdelay_time) { 1276 phba->last_eqdelay_time = jiffies; 1277 goto skip_eqdelay; 1278 } 1279 time_elapsed = jiffies - phba->last_eqdelay_time; 1280 phba->last_eqdelay_time = jiffies; 1281 1282 tot = 0xffff; 1283 /* Check outstanding IO count */ 1284 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 1285 if (phba->nvmet_support) { 1286 tgtp = phba->targetport->private; 1287 /* Calculate outstanding IOs */ 1288 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 1289 tot += atomic_read(&tgtp->xmt_fcp_release); 1290 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 1291 } else { 1292 tot = atomic_read(&phba->fc4NvmeIoCmpls); 1293 data1 = atomic_read( 1294 &phba->fc4NvmeInputRequests); 1295 data2 = atomic_read( 1296 &phba->fc4NvmeOutputRequests); 1297 data3 = atomic_read( 1298 &phba->fc4NvmeControlRequests); 1299 tot = (data1 + data2 + data3) - tot; 1300 } 1301 } 1302 1303 /* Interrupts per sec per EQ */ 1304 val = phba->cfg_fcp_imax / phba->io_channel_irqs; 1305 tick_cqe = val / CONFIG_HZ; /* Per tick per EQ */ 1306 1307 /* Assume 1 CQE/ISR, calc max CQEs allowed for time duration */ 1308 max_cqe = time_elapsed * tick_cqe; 1309 1310 for (i = 0; i < phba->io_channel_irqs; i++) { 1311 /* Fast-path EQ */ 1312 qp = phba->sli4_hba.hba_eq[i]; 1313 if (!qp) 1314 continue; 1315 1316 /* Use no EQ delay if we don't have many outstanding 1317 * IOs, or if we are only processing 1 CQE/ISR or less. 1318 * Otherwise, assume we can process up to lpfc_fcp_imax 1319 * interrupts per HBA. 1320 */ 1321 if (tot < LPFC_NODELAY_MAX_IO || 1322 qp->EQ_cqe_cnt <= max_cqe) 1323 val = 0; 1324 else 1325 val = phba->cfg_fcp_imax; 1326 1327 if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) { 1328 /* Use EQ Delay Register method */ 1329 1330 /* Convert for EQ Delay register */ 1331 if (val) { 1332 /* First, interrupts per sec per EQ */ 1333 val = phba->cfg_fcp_imax / 1334 phba->io_channel_irqs; 1335 1336 /* us delay between each interrupt */ 1337 val = LPFC_SEC_TO_USEC / val; 1338 } 1339 if (val != qp->q_mode) { 1340 reg_data.word0 = 0; 1341 bf_set(lpfc_sliport_eqdelay_id, 1342 ®_data, qp->queue_id); 1343 bf_set(lpfc_sliport_eqdelay_delay, 1344 ®_data, val); 1345 writel(reg_data.word0, eqdreg); 1346 } 1347 } else { 1348 /* Use mbox command method */ 1349 if (val != qp->q_mode) 1350 lpfc_modify_hba_eq_delay(phba, i, 1351 1, val); 1352 } 1353 1354 /* 1355 * val is cfg_fcp_imax or 0 for mbox delay or us delay 1356 * between interrupts for EQDR. 1357 */ 1358 qp->q_mode = val; 1359 qp->EQ_cqe_cnt = 0; 1360 } 1361 } 1362 1363 skip_eqdelay: 1364 spin_lock_irq(&phba->pport->work_port_lock); 1365 1366 if (time_after(phba->last_completion_time + 1367 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL), 1368 jiffies)) { 1369 spin_unlock_irq(&phba->pport->work_port_lock); 1370 if (!phba->hb_outstanding) 1371 mod_timer(&phba->hb_tmofunc, 1372 jiffies + 1373 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1374 else 1375 mod_timer(&phba->hb_tmofunc, 1376 jiffies + 1377 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1378 return; 1379 } 1380 spin_unlock_irq(&phba->pport->work_port_lock); 1381 1382 if (phba->elsbuf_cnt && 1383 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1384 spin_lock_irq(&phba->hbalock); 1385 list_splice_init(&phba->elsbuf, &completions); 1386 phba->elsbuf_cnt = 0; 1387 phba->elsbuf_prev_cnt = 0; 1388 spin_unlock_irq(&phba->hbalock); 1389 1390 while (!list_empty(&completions)) { 1391 list_remove_head(&completions, buf_ptr, 1392 struct lpfc_dmabuf, list); 1393 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1394 kfree(buf_ptr); 1395 } 1396 } 1397 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1398 1399 /* If there is no heart beat outstanding, issue a heartbeat command */ 1400 if (phba->cfg_enable_hba_heartbeat) { 1401 if (!phba->hb_outstanding) { 1402 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1403 (list_empty(&psli->mboxq))) { 1404 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1405 GFP_KERNEL); 1406 if (!pmboxq) { 1407 mod_timer(&phba->hb_tmofunc, 1408 jiffies + 1409 msecs_to_jiffies(1000 * 1410 LPFC_HB_MBOX_INTERVAL)); 1411 return; 1412 } 1413 1414 lpfc_heart_beat(phba, pmboxq); 1415 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1416 pmboxq->vport = phba->pport; 1417 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1418 MBX_NOWAIT); 1419 1420 if (retval != MBX_BUSY && 1421 retval != MBX_SUCCESS) { 1422 mempool_free(pmboxq, 1423 phba->mbox_mem_pool); 1424 mod_timer(&phba->hb_tmofunc, 1425 jiffies + 1426 msecs_to_jiffies(1000 * 1427 LPFC_HB_MBOX_INTERVAL)); 1428 return; 1429 } 1430 phba->skipped_hb = 0; 1431 phba->hb_outstanding = 1; 1432 } else if (time_before_eq(phba->last_completion_time, 1433 phba->skipped_hb)) { 1434 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1435 "2857 Last completion time not " 1436 " updated in %d ms\n", 1437 jiffies_to_msecs(jiffies 1438 - phba->last_completion_time)); 1439 } else 1440 phba->skipped_hb = jiffies; 1441 1442 mod_timer(&phba->hb_tmofunc, 1443 jiffies + 1444 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1445 return; 1446 } else { 1447 /* 1448 * If heart beat timeout called with hb_outstanding set 1449 * we need to give the hb mailbox cmd a chance to 1450 * complete or TMO. 1451 */ 1452 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1453 "0459 Adapter heartbeat still out" 1454 "standing:last compl time was %d ms.\n", 1455 jiffies_to_msecs(jiffies 1456 - phba->last_completion_time)); 1457 mod_timer(&phba->hb_tmofunc, 1458 jiffies + 1459 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1460 } 1461 } else { 1462 mod_timer(&phba->hb_tmofunc, 1463 jiffies + 1464 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1465 } 1466 } 1467 1468 /** 1469 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1470 * @phba: pointer to lpfc hba data structure. 1471 * 1472 * This routine is called to bring the HBA offline when HBA hardware error 1473 * other than Port Error 6 has been detected. 1474 **/ 1475 static void 1476 lpfc_offline_eratt(struct lpfc_hba *phba) 1477 { 1478 struct lpfc_sli *psli = &phba->sli; 1479 1480 spin_lock_irq(&phba->hbalock); 1481 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1482 spin_unlock_irq(&phba->hbalock); 1483 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1484 1485 lpfc_offline(phba); 1486 lpfc_reset_barrier(phba); 1487 spin_lock_irq(&phba->hbalock); 1488 lpfc_sli_brdreset(phba); 1489 spin_unlock_irq(&phba->hbalock); 1490 lpfc_hba_down_post(phba); 1491 lpfc_sli_brdready(phba, HS_MBRDY); 1492 lpfc_unblock_mgmt_io(phba); 1493 phba->link_state = LPFC_HBA_ERROR; 1494 return; 1495 } 1496 1497 /** 1498 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1499 * @phba: pointer to lpfc hba data structure. 1500 * 1501 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1502 * other than Port Error 6 has been detected. 1503 **/ 1504 void 1505 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1506 { 1507 spin_lock_irq(&phba->hbalock); 1508 phba->link_state = LPFC_HBA_ERROR; 1509 spin_unlock_irq(&phba->hbalock); 1510 1511 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1512 lpfc_offline(phba); 1513 lpfc_hba_down_post(phba); 1514 lpfc_unblock_mgmt_io(phba); 1515 } 1516 1517 /** 1518 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1519 * @phba: pointer to lpfc hba data structure. 1520 * 1521 * This routine is invoked to handle the deferred HBA hardware error 1522 * conditions. This type of error is indicated by HBA by setting ER1 1523 * and another ER bit in the host status register. The driver will 1524 * wait until the ER1 bit clears before handling the error condition. 1525 **/ 1526 static void 1527 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1528 { 1529 uint32_t old_host_status = phba->work_hs; 1530 struct lpfc_sli *psli = &phba->sli; 1531 1532 /* If the pci channel is offline, ignore possible errors, 1533 * since we cannot communicate with the pci card anyway. 1534 */ 1535 if (pci_channel_offline(phba->pcidev)) { 1536 spin_lock_irq(&phba->hbalock); 1537 phba->hba_flag &= ~DEFER_ERATT; 1538 spin_unlock_irq(&phba->hbalock); 1539 return; 1540 } 1541 1542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1543 "0479 Deferred Adapter Hardware Error " 1544 "Data: x%x x%x x%x\n", 1545 phba->work_hs, 1546 phba->work_status[0], phba->work_status[1]); 1547 1548 spin_lock_irq(&phba->hbalock); 1549 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1550 spin_unlock_irq(&phba->hbalock); 1551 1552 1553 /* 1554 * Firmware stops when it triggred erratt. That could cause the I/Os 1555 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1556 * SCSI layer retry it after re-establishing link. 1557 */ 1558 lpfc_sli_abort_fcp_rings(phba); 1559 1560 /* 1561 * There was a firmware error. Take the hba offline and then 1562 * attempt to restart it. 1563 */ 1564 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 1565 lpfc_offline(phba); 1566 1567 /* Wait for the ER1 bit to clear.*/ 1568 while (phba->work_hs & HS_FFER1) { 1569 msleep(100); 1570 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1571 phba->work_hs = UNPLUG_ERR ; 1572 break; 1573 } 1574 /* If driver is unloading let the worker thread continue */ 1575 if (phba->pport->load_flag & FC_UNLOADING) { 1576 phba->work_hs = 0; 1577 break; 1578 } 1579 } 1580 1581 /* 1582 * This is to ptrotect against a race condition in which 1583 * first write to the host attention register clear the 1584 * host status register. 1585 */ 1586 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1587 phba->work_hs = old_host_status & ~HS_FFER1; 1588 1589 spin_lock_irq(&phba->hbalock); 1590 phba->hba_flag &= ~DEFER_ERATT; 1591 spin_unlock_irq(&phba->hbalock); 1592 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1593 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1594 } 1595 1596 static void 1597 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1598 { 1599 struct lpfc_board_event_header board_event; 1600 struct Scsi_Host *shost; 1601 1602 board_event.event_type = FC_REG_BOARD_EVENT; 1603 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1604 shost = lpfc_shost_from_vport(phba->pport); 1605 fc_host_post_vendor_event(shost, fc_get_event_number(), 1606 sizeof(board_event), 1607 (char *) &board_event, 1608 LPFC_NL_VENDOR_ID); 1609 } 1610 1611 /** 1612 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1613 * @phba: pointer to lpfc hba data structure. 1614 * 1615 * This routine is invoked to handle the following HBA hardware error 1616 * conditions: 1617 * 1 - HBA error attention interrupt 1618 * 2 - DMA ring index out of range 1619 * 3 - Mailbox command came back as unknown 1620 **/ 1621 static void 1622 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1623 { 1624 struct lpfc_vport *vport = phba->pport; 1625 struct lpfc_sli *psli = &phba->sli; 1626 uint32_t event_data; 1627 unsigned long temperature; 1628 struct temp_event temp_event_data; 1629 struct Scsi_Host *shost; 1630 1631 /* If the pci channel is offline, ignore possible errors, 1632 * since we cannot communicate with the pci card anyway. 1633 */ 1634 if (pci_channel_offline(phba->pcidev)) { 1635 spin_lock_irq(&phba->hbalock); 1636 phba->hba_flag &= ~DEFER_ERATT; 1637 spin_unlock_irq(&phba->hbalock); 1638 return; 1639 } 1640 1641 /* If resets are disabled then leave the HBA alone and return */ 1642 if (!phba->cfg_enable_hba_reset) 1643 return; 1644 1645 /* Send an internal error event to mgmt application */ 1646 lpfc_board_errevt_to_mgmt(phba); 1647 1648 if (phba->hba_flag & DEFER_ERATT) 1649 lpfc_handle_deferred_eratt(phba); 1650 1651 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1652 if (phba->work_hs & HS_FFER6) 1653 /* Re-establishing Link */ 1654 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1655 "1301 Re-establishing Link " 1656 "Data: x%x x%x x%x\n", 1657 phba->work_hs, phba->work_status[0], 1658 phba->work_status[1]); 1659 if (phba->work_hs & HS_FFER8) 1660 /* Device Zeroization */ 1661 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1662 "2861 Host Authentication device " 1663 "zeroization Data:x%x x%x x%x\n", 1664 phba->work_hs, phba->work_status[0], 1665 phba->work_status[1]); 1666 1667 spin_lock_irq(&phba->hbalock); 1668 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1669 spin_unlock_irq(&phba->hbalock); 1670 1671 /* 1672 * Firmware stops when it triggled erratt with HS_FFER6. 1673 * That could cause the I/Os dropped by the firmware. 1674 * Error iocb (I/O) on txcmplq and let the SCSI layer 1675 * retry it after re-establishing link. 1676 */ 1677 lpfc_sli_abort_fcp_rings(phba); 1678 1679 /* 1680 * There was a firmware error. Take the hba offline and then 1681 * attempt to restart it. 1682 */ 1683 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1684 lpfc_offline(phba); 1685 lpfc_sli_brdrestart(phba); 1686 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1687 lpfc_unblock_mgmt_io(phba); 1688 return; 1689 } 1690 lpfc_unblock_mgmt_io(phba); 1691 } else if (phba->work_hs & HS_CRIT_TEMP) { 1692 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1693 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1694 temp_event_data.event_code = LPFC_CRIT_TEMP; 1695 temp_event_data.data = (uint32_t)temperature; 1696 1697 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1698 "0406 Adapter maximum temperature exceeded " 1699 "(%ld), taking this port offline " 1700 "Data: x%x x%x x%x\n", 1701 temperature, phba->work_hs, 1702 phba->work_status[0], phba->work_status[1]); 1703 1704 shost = lpfc_shost_from_vport(phba->pport); 1705 fc_host_post_vendor_event(shost, fc_get_event_number(), 1706 sizeof(temp_event_data), 1707 (char *) &temp_event_data, 1708 SCSI_NL_VID_TYPE_PCI 1709 | PCI_VENDOR_ID_EMULEX); 1710 1711 spin_lock_irq(&phba->hbalock); 1712 phba->over_temp_state = HBA_OVER_TEMP; 1713 spin_unlock_irq(&phba->hbalock); 1714 lpfc_offline_eratt(phba); 1715 1716 } else { 1717 /* The if clause above forces this code path when the status 1718 * failure is a value other than FFER6. Do not call the offline 1719 * twice. This is the adapter hardware error path. 1720 */ 1721 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1722 "0457 Adapter Hardware Error " 1723 "Data: x%x x%x x%x\n", 1724 phba->work_hs, 1725 phba->work_status[0], phba->work_status[1]); 1726 1727 event_data = FC_REG_DUMP_EVENT; 1728 shost = lpfc_shost_from_vport(vport); 1729 fc_host_post_vendor_event(shost, fc_get_event_number(), 1730 sizeof(event_data), (char *) &event_data, 1731 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1732 1733 lpfc_offline_eratt(phba); 1734 } 1735 return; 1736 } 1737 1738 /** 1739 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg 1740 * @phba: pointer to lpfc hba data structure. 1741 * @mbx_action: flag for mailbox shutdown action. 1742 * 1743 * This routine is invoked to perform an SLI4 port PCI function reset in 1744 * response to port status register polling attention. It waits for port 1745 * status register (ERR, RDY, RN) bits before proceeding with function reset. 1746 * During this process, interrupt vectors are freed and later requested 1747 * for handling possible port resource change. 1748 **/ 1749 static int 1750 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action, 1751 bool en_rn_msg) 1752 { 1753 int rc; 1754 uint32_t intr_mode; 1755 1756 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 1757 LPFC_SLI_INTF_IF_TYPE_2) { 1758 /* 1759 * On error status condition, driver need to wait for port 1760 * ready before performing reset. 1761 */ 1762 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1763 if (rc) 1764 return rc; 1765 } 1766 1767 /* need reset: attempt for port recovery */ 1768 if (en_rn_msg) 1769 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1770 "2887 Reset Needed: Attempting Port " 1771 "Recovery...\n"); 1772 lpfc_offline_prep(phba, mbx_action); 1773 lpfc_offline(phba); 1774 /* release interrupt for possible resource change */ 1775 lpfc_sli4_disable_intr(phba); 1776 lpfc_sli_brdrestart(phba); 1777 /* request and enable interrupt */ 1778 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 1779 if (intr_mode == LPFC_INTR_ERROR) { 1780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1781 "3175 Failed to enable interrupt\n"); 1782 return -EIO; 1783 } 1784 phba->intr_mode = intr_mode; 1785 rc = lpfc_online(phba); 1786 if (rc == 0) 1787 lpfc_unblock_mgmt_io(phba); 1788 1789 return rc; 1790 } 1791 1792 /** 1793 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1794 * @phba: pointer to lpfc hba data structure. 1795 * 1796 * This routine is invoked to handle the SLI4 HBA hardware error attention 1797 * conditions. 1798 **/ 1799 static void 1800 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1801 { 1802 struct lpfc_vport *vport = phba->pport; 1803 uint32_t event_data; 1804 struct Scsi_Host *shost; 1805 uint32_t if_type; 1806 struct lpfc_register portstat_reg = {0}; 1807 uint32_t reg_err1, reg_err2; 1808 uint32_t uerrlo_reg, uemasklo_reg; 1809 uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2; 1810 bool en_rn_msg = true; 1811 struct temp_event temp_event_data; 1812 struct lpfc_register portsmphr_reg; 1813 int rc, i; 1814 1815 /* If the pci channel is offline, ignore possible errors, since 1816 * we cannot communicate with the pci card anyway. 1817 */ 1818 if (pci_channel_offline(phba->pcidev)) 1819 return; 1820 1821 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 1822 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1823 switch (if_type) { 1824 case LPFC_SLI_INTF_IF_TYPE_0: 1825 pci_rd_rc1 = lpfc_readl( 1826 phba->sli4_hba.u.if_type0.UERRLOregaddr, 1827 &uerrlo_reg); 1828 pci_rd_rc2 = lpfc_readl( 1829 phba->sli4_hba.u.if_type0.UEMASKLOregaddr, 1830 &uemasklo_reg); 1831 /* consider PCI bus read error as pci_channel_offline */ 1832 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) 1833 return; 1834 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) { 1835 lpfc_sli4_offline_eratt(phba); 1836 return; 1837 } 1838 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1839 "7623 Checking UE recoverable"); 1840 1841 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) { 1842 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 1843 &portsmphr_reg.word0)) 1844 continue; 1845 1846 smphr_port_status = bf_get(lpfc_port_smphr_port_status, 1847 &portsmphr_reg); 1848 if ((smphr_port_status & LPFC_PORT_SEM_MASK) == 1849 LPFC_PORT_SEM_UE_RECOVERABLE) 1850 break; 1851 /*Sleep for 1Sec, before checking SEMAPHORE */ 1852 msleep(1000); 1853 } 1854 1855 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1856 "4827 smphr_port_status x%x : Waited %dSec", 1857 smphr_port_status, i); 1858 1859 /* Recoverable UE, reset the HBA device */ 1860 if ((smphr_port_status & LPFC_PORT_SEM_MASK) == 1861 LPFC_PORT_SEM_UE_RECOVERABLE) { 1862 for (i = 0; i < 20; i++) { 1863 msleep(1000); 1864 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 1865 &portsmphr_reg.word0) && 1866 (LPFC_POST_STAGE_PORT_READY == 1867 bf_get(lpfc_port_smphr_port_status, 1868 &portsmphr_reg))) { 1869 rc = lpfc_sli4_port_sta_fn_reset(phba, 1870 LPFC_MBX_NO_WAIT, en_rn_msg); 1871 if (rc == 0) 1872 return; 1873 lpfc_printf_log(phba, 1874 KERN_ERR, LOG_INIT, 1875 "4215 Failed to recover UE"); 1876 break; 1877 } 1878 } 1879 } 1880 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1881 "7624 Firmware not ready: Failing UE recovery," 1882 " waited %dSec", i); 1883 lpfc_sli4_offline_eratt(phba); 1884 break; 1885 1886 case LPFC_SLI_INTF_IF_TYPE_2: 1887 pci_rd_rc1 = lpfc_readl( 1888 phba->sli4_hba.u.if_type2.STATUSregaddr, 1889 &portstat_reg.word0); 1890 /* consider PCI bus read error as pci_channel_offline */ 1891 if (pci_rd_rc1 == -EIO) { 1892 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1893 "3151 PCI bus read access failure: x%x\n", 1894 readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); 1895 return; 1896 } 1897 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); 1898 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); 1899 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1900 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1901 "2889 Port Overtemperature event, " 1902 "taking port offline Data: x%x x%x\n", 1903 reg_err1, reg_err2); 1904 1905 phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 1906 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1907 temp_event_data.event_code = LPFC_CRIT_TEMP; 1908 temp_event_data.data = 0xFFFFFFFF; 1909 1910 shost = lpfc_shost_from_vport(phba->pport); 1911 fc_host_post_vendor_event(shost, fc_get_event_number(), 1912 sizeof(temp_event_data), 1913 (char *)&temp_event_data, 1914 SCSI_NL_VID_TYPE_PCI 1915 | PCI_VENDOR_ID_EMULEX); 1916 1917 spin_lock_irq(&phba->hbalock); 1918 phba->over_temp_state = HBA_OVER_TEMP; 1919 spin_unlock_irq(&phba->hbalock); 1920 lpfc_sli4_offline_eratt(phba); 1921 return; 1922 } 1923 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1924 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) { 1925 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1926 "3143 Port Down: Firmware Update " 1927 "Detected\n"); 1928 en_rn_msg = false; 1929 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1930 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1931 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1932 "3144 Port Down: Debug Dump\n"); 1933 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1934 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) 1935 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1936 "3145 Port Down: Provisioning\n"); 1937 1938 /* If resets are disabled then leave the HBA alone and return */ 1939 if (!phba->cfg_enable_hba_reset) 1940 return; 1941 1942 /* Check port status register for function reset */ 1943 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT, 1944 en_rn_msg); 1945 if (rc == 0) { 1946 /* don't report event on forced debug dump */ 1947 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1948 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1949 return; 1950 else 1951 break; 1952 } 1953 /* fall through for not able to recover */ 1954 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1955 "3152 Unrecoverable error, bring the port " 1956 "offline\n"); 1957 lpfc_sli4_offline_eratt(phba); 1958 break; 1959 case LPFC_SLI_INTF_IF_TYPE_1: 1960 default: 1961 break; 1962 } 1963 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1964 "3123 Report dump event to upper layer\n"); 1965 /* Send an internal error event to mgmt application */ 1966 lpfc_board_errevt_to_mgmt(phba); 1967 1968 event_data = FC_REG_DUMP_EVENT; 1969 shost = lpfc_shost_from_vport(vport); 1970 fc_host_post_vendor_event(shost, fc_get_event_number(), 1971 sizeof(event_data), (char *) &event_data, 1972 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1973 } 1974 1975 /** 1976 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1977 * @phba: pointer to lpfc HBA data structure. 1978 * 1979 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1980 * routine from the API jump table function pointer from the lpfc_hba struct. 1981 * 1982 * Return codes 1983 * 0 - success. 1984 * Any other value - error. 1985 **/ 1986 void 1987 lpfc_handle_eratt(struct lpfc_hba *phba) 1988 { 1989 (*phba->lpfc_handle_eratt)(phba); 1990 } 1991 1992 /** 1993 * lpfc_handle_latt - The HBA link event handler 1994 * @phba: pointer to lpfc hba data structure. 1995 * 1996 * This routine is invoked from the worker thread to handle a HBA host 1997 * attention link event. SLI3 only. 1998 **/ 1999 void 2000 lpfc_handle_latt(struct lpfc_hba *phba) 2001 { 2002 struct lpfc_vport *vport = phba->pport; 2003 struct lpfc_sli *psli = &phba->sli; 2004 LPFC_MBOXQ_t *pmb; 2005 volatile uint32_t control; 2006 struct lpfc_dmabuf *mp; 2007 int rc = 0; 2008 2009 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2010 if (!pmb) { 2011 rc = 1; 2012 goto lpfc_handle_latt_err_exit; 2013 } 2014 2015 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 2016 if (!mp) { 2017 rc = 2; 2018 goto lpfc_handle_latt_free_pmb; 2019 } 2020 2021 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 2022 if (!mp->virt) { 2023 rc = 3; 2024 goto lpfc_handle_latt_free_mp; 2025 } 2026 2027 /* Cleanup any outstanding ELS commands */ 2028 lpfc_els_flush_all_cmd(phba); 2029 2030 psli->slistat.link_event++; 2031 lpfc_read_topology(phba, pmb, mp); 2032 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 2033 pmb->vport = vport; 2034 /* Block ELS IOCBs until we have processed this mbox command */ 2035 phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 2036 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 2037 if (rc == MBX_NOT_FINISHED) { 2038 rc = 4; 2039 goto lpfc_handle_latt_free_mbuf; 2040 } 2041 2042 /* Clear Link Attention in HA REG */ 2043 spin_lock_irq(&phba->hbalock); 2044 writel(HA_LATT, phba->HAregaddr); 2045 readl(phba->HAregaddr); /* flush */ 2046 spin_unlock_irq(&phba->hbalock); 2047 2048 return; 2049 2050 lpfc_handle_latt_free_mbuf: 2051 phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 2052 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2053 lpfc_handle_latt_free_mp: 2054 kfree(mp); 2055 lpfc_handle_latt_free_pmb: 2056 mempool_free(pmb, phba->mbox_mem_pool); 2057 lpfc_handle_latt_err_exit: 2058 /* Enable Link attention interrupts */ 2059 spin_lock_irq(&phba->hbalock); 2060 psli->sli_flag |= LPFC_PROCESS_LA; 2061 control = readl(phba->HCregaddr); 2062 control |= HC_LAINT_ENA; 2063 writel(control, phba->HCregaddr); 2064 readl(phba->HCregaddr); /* flush */ 2065 2066 /* Clear Link Attention in HA REG */ 2067 writel(HA_LATT, phba->HAregaddr); 2068 readl(phba->HAregaddr); /* flush */ 2069 spin_unlock_irq(&phba->hbalock); 2070 lpfc_linkdown(phba); 2071 phba->link_state = LPFC_HBA_ERROR; 2072 2073 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 2074 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 2075 2076 return; 2077 } 2078 2079 /** 2080 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 2081 * @phba: pointer to lpfc hba data structure. 2082 * @vpd: pointer to the vital product data. 2083 * @len: length of the vital product data in bytes. 2084 * 2085 * This routine parses the Vital Product Data (VPD). The VPD is treated as 2086 * an array of characters. In this routine, the ModelName, ProgramType, and 2087 * ModelDesc, etc. fields of the phba data structure will be populated. 2088 * 2089 * Return codes 2090 * 0 - pointer to the VPD passed in is NULL 2091 * 1 - success 2092 **/ 2093 int 2094 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 2095 { 2096 uint8_t lenlo, lenhi; 2097 int Length; 2098 int i, j; 2099 int finished = 0; 2100 int index = 0; 2101 2102 if (!vpd) 2103 return 0; 2104 2105 /* Vital Product */ 2106 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2107 "0455 Vital Product Data: x%x x%x x%x x%x\n", 2108 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 2109 (uint32_t) vpd[3]); 2110 while (!finished && (index < (len - 4))) { 2111 switch (vpd[index]) { 2112 case 0x82: 2113 case 0x91: 2114 index += 1; 2115 lenlo = vpd[index]; 2116 index += 1; 2117 lenhi = vpd[index]; 2118 index += 1; 2119 i = ((((unsigned short)lenhi) << 8) + lenlo); 2120 index += i; 2121 break; 2122 case 0x90: 2123 index += 1; 2124 lenlo = vpd[index]; 2125 index += 1; 2126 lenhi = vpd[index]; 2127 index += 1; 2128 Length = ((((unsigned short)lenhi) << 8) + lenlo); 2129 if (Length > len - index) 2130 Length = len - index; 2131 while (Length > 0) { 2132 /* Look for Serial Number */ 2133 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 2134 index += 2; 2135 i = vpd[index]; 2136 index += 1; 2137 j = 0; 2138 Length -= (3+i); 2139 while(i--) { 2140 phba->SerialNumber[j++] = vpd[index++]; 2141 if (j == 31) 2142 break; 2143 } 2144 phba->SerialNumber[j] = 0; 2145 continue; 2146 } 2147 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 2148 phba->vpd_flag |= VPD_MODEL_DESC; 2149 index += 2; 2150 i = vpd[index]; 2151 index += 1; 2152 j = 0; 2153 Length -= (3+i); 2154 while(i--) { 2155 phba->ModelDesc[j++] = vpd[index++]; 2156 if (j == 255) 2157 break; 2158 } 2159 phba->ModelDesc[j] = 0; 2160 continue; 2161 } 2162 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 2163 phba->vpd_flag |= VPD_MODEL_NAME; 2164 index += 2; 2165 i = vpd[index]; 2166 index += 1; 2167 j = 0; 2168 Length -= (3+i); 2169 while(i--) { 2170 phba->ModelName[j++] = vpd[index++]; 2171 if (j == 79) 2172 break; 2173 } 2174 phba->ModelName[j] = 0; 2175 continue; 2176 } 2177 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 2178 phba->vpd_flag |= VPD_PROGRAM_TYPE; 2179 index += 2; 2180 i = vpd[index]; 2181 index += 1; 2182 j = 0; 2183 Length -= (3+i); 2184 while(i--) { 2185 phba->ProgramType[j++] = vpd[index++]; 2186 if (j == 255) 2187 break; 2188 } 2189 phba->ProgramType[j] = 0; 2190 continue; 2191 } 2192 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 2193 phba->vpd_flag |= VPD_PORT; 2194 index += 2; 2195 i = vpd[index]; 2196 index += 1; 2197 j = 0; 2198 Length -= (3+i); 2199 while(i--) { 2200 if ((phba->sli_rev == LPFC_SLI_REV4) && 2201 (phba->sli4_hba.pport_name_sta == 2202 LPFC_SLI4_PPNAME_GET)) { 2203 j++; 2204 index++; 2205 } else 2206 phba->Port[j++] = vpd[index++]; 2207 if (j == 19) 2208 break; 2209 } 2210 if ((phba->sli_rev != LPFC_SLI_REV4) || 2211 (phba->sli4_hba.pport_name_sta == 2212 LPFC_SLI4_PPNAME_NON)) 2213 phba->Port[j] = 0; 2214 continue; 2215 } 2216 else { 2217 index += 2; 2218 i = vpd[index]; 2219 index += 1; 2220 index += i; 2221 Length -= (3 + i); 2222 } 2223 } 2224 finished = 0; 2225 break; 2226 case 0x78: 2227 finished = 1; 2228 break; 2229 default: 2230 index ++; 2231 break; 2232 } 2233 } 2234 2235 return(1); 2236 } 2237 2238 /** 2239 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 2240 * @phba: pointer to lpfc hba data structure. 2241 * @mdp: pointer to the data structure to hold the derived model name. 2242 * @descp: pointer to the data structure to hold the derived description. 2243 * 2244 * This routine retrieves HBA's description based on its registered PCI device 2245 * ID. The @descp passed into this function points to an array of 256 chars. It 2246 * shall be returned with the model name, maximum speed, and the host bus type. 2247 * The @mdp passed into this function points to an array of 80 chars. When the 2248 * function returns, the @mdp will be filled with the model name. 2249 **/ 2250 static void 2251 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 2252 { 2253 lpfc_vpd_t *vp; 2254 uint16_t dev_id = phba->pcidev->device; 2255 int max_speed; 2256 int GE = 0; 2257 int oneConnect = 0; /* default is not a oneConnect */ 2258 struct { 2259 char *name; 2260 char *bus; 2261 char *function; 2262 } m = {"<Unknown>", "", ""}; 2263 2264 if (mdp && mdp[0] != '\0' 2265 && descp && descp[0] != '\0') 2266 return; 2267 2268 if (phba->lmt & LMT_32Gb) 2269 max_speed = 32; 2270 else if (phba->lmt & LMT_16Gb) 2271 max_speed = 16; 2272 else if (phba->lmt & LMT_10Gb) 2273 max_speed = 10; 2274 else if (phba->lmt & LMT_8Gb) 2275 max_speed = 8; 2276 else if (phba->lmt & LMT_4Gb) 2277 max_speed = 4; 2278 else if (phba->lmt & LMT_2Gb) 2279 max_speed = 2; 2280 else if (phba->lmt & LMT_1Gb) 2281 max_speed = 1; 2282 else 2283 max_speed = 0; 2284 2285 vp = &phba->vpd; 2286 2287 switch (dev_id) { 2288 case PCI_DEVICE_ID_FIREFLY: 2289 m = (typeof(m)){"LP6000", "PCI", 2290 "Obsolete, Unsupported Fibre Channel Adapter"}; 2291 break; 2292 case PCI_DEVICE_ID_SUPERFLY: 2293 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 2294 m = (typeof(m)){"LP7000", "PCI", ""}; 2295 else 2296 m = (typeof(m)){"LP7000E", "PCI", ""}; 2297 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2298 break; 2299 case PCI_DEVICE_ID_DRAGONFLY: 2300 m = (typeof(m)){"LP8000", "PCI", 2301 "Obsolete, Unsupported Fibre Channel Adapter"}; 2302 break; 2303 case PCI_DEVICE_ID_CENTAUR: 2304 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 2305 m = (typeof(m)){"LP9002", "PCI", ""}; 2306 else 2307 m = (typeof(m)){"LP9000", "PCI", ""}; 2308 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2309 break; 2310 case PCI_DEVICE_ID_RFLY: 2311 m = (typeof(m)){"LP952", "PCI", 2312 "Obsolete, Unsupported Fibre Channel Adapter"}; 2313 break; 2314 case PCI_DEVICE_ID_PEGASUS: 2315 m = (typeof(m)){"LP9802", "PCI-X", 2316 "Obsolete, Unsupported Fibre Channel Adapter"}; 2317 break; 2318 case PCI_DEVICE_ID_THOR: 2319 m = (typeof(m)){"LP10000", "PCI-X", 2320 "Obsolete, Unsupported Fibre Channel Adapter"}; 2321 break; 2322 case PCI_DEVICE_ID_VIPER: 2323 m = (typeof(m)){"LPX1000", "PCI-X", 2324 "Obsolete, Unsupported Fibre Channel Adapter"}; 2325 break; 2326 case PCI_DEVICE_ID_PFLY: 2327 m = (typeof(m)){"LP982", "PCI-X", 2328 "Obsolete, Unsupported Fibre Channel Adapter"}; 2329 break; 2330 case PCI_DEVICE_ID_TFLY: 2331 m = (typeof(m)){"LP1050", "PCI-X", 2332 "Obsolete, Unsupported Fibre Channel Adapter"}; 2333 break; 2334 case PCI_DEVICE_ID_HELIOS: 2335 m = (typeof(m)){"LP11000", "PCI-X2", 2336 "Obsolete, Unsupported Fibre Channel Adapter"}; 2337 break; 2338 case PCI_DEVICE_ID_HELIOS_SCSP: 2339 m = (typeof(m)){"LP11000-SP", "PCI-X2", 2340 "Obsolete, Unsupported Fibre Channel Adapter"}; 2341 break; 2342 case PCI_DEVICE_ID_HELIOS_DCSP: 2343 m = (typeof(m)){"LP11002-SP", "PCI-X2", 2344 "Obsolete, Unsupported Fibre Channel Adapter"}; 2345 break; 2346 case PCI_DEVICE_ID_NEPTUNE: 2347 m = (typeof(m)){"LPe1000", "PCIe", 2348 "Obsolete, Unsupported Fibre Channel Adapter"}; 2349 break; 2350 case PCI_DEVICE_ID_NEPTUNE_SCSP: 2351 m = (typeof(m)){"LPe1000-SP", "PCIe", 2352 "Obsolete, Unsupported Fibre Channel Adapter"}; 2353 break; 2354 case PCI_DEVICE_ID_NEPTUNE_DCSP: 2355 m = (typeof(m)){"LPe1002-SP", "PCIe", 2356 "Obsolete, Unsupported Fibre Channel Adapter"}; 2357 break; 2358 case PCI_DEVICE_ID_BMID: 2359 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 2360 break; 2361 case PCI_DEVICE_ID_BSMB: 2362 m = (typeof(m)){"LP111", "PCI-X2", 2363 "Obsolete, Unsupported Fibre Channel Adapter"}; 2364 break; 2365 case PCI_DEVICE_ID_ZEPHYR: 2366 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2367 break; 2368 case PCI_DEVICE_ID_ZEPHYR_SCSP: 2369 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2370 break; 2371 case PCI_DEVICE_ID_ZEPHYR_DCSP: 2372 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 2373 GE = 1; 2374 break; 2375 case PCI_DEVICE_ID_ZMID: 2376 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 2377 break; 2378 case PCI_DEVICE_ID_ZSMB: 2379 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 2380 break; 2381 case PCI_DEVICE_ID_LP101: 2382 m = (typeof(m)){"LP101", "PCI-X", 2383 "Obsolete, Unsupported Fibre Channel Adapter"}; 2384 break; 2385 case PCI_DEVICE_ID_LP10000S: 2386 m = (typeof(m)){"LP10000-S", "PCI", 2387 "Obsolete, Unsupported Fibre Channel Adapter"}; 2388 break; 2389 case PCI_DEVICE_ID_LP11000S: 2390 m = (typeof(m)){"LP11000-S", "PCI-X2", 2391 "Obsolete, Unsupported Fibre Channel Adapter"}; 2392 break; 2393 case PCI_DEVICE_ID_LPE11000S: 2394 m = (typeof(m)){"LPe11000-S", "PCIe", 2395 "Obsolete, Unsupported Fibre Channel Adapter"}; 2396 break; 2397 case PCI_DEVICE_ID_SAT: 2398 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 2399 break; 2400 case PCI_DEVICE_ID_SAT_MID: 2401 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 2402 break; 2403 case PCI_DEVICE_ID_SAT_SMB: 2404 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 2405 break; 2406 case PCI_DEVICE_ID_SAT_DCSP: 2407 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 2408 break; 2409 case PCI_DEVICE_ID_SAT_SCSP: 2410 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 2411 break; 2412 case PCI_DEVICE_ID_SAT_S: 2413 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 2414 break; 2415 case PCI_DEVICE_ID_HORNET: 2416 m = (typeof(m)){"LP21000", "PCIe", 2417 "Obsolete, Unsupported FCoE Adapter"}; 2418 GE = 1; 2419 break; 2420 case PCI_DEVICE_ID_PROTEUS_VF: 2421 m = (typeof(m)){"LPev12000", "PCIe IOV", 2422 "Obsolete, Unsupported Fibre Channel Adapter"}; 2423 break; 2424 case PCI_DEVICE_ID_PROTEUS_PF: 2425 m = (typeof(m)){"LPev12000", "PCIe IOV", 2426 "Obsolete, Unsupported Fibre Channel Adapter"}; 2427 break; 2428 case PCI_DEVICE_ID_PROTEUS_S: 2429 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 2430 "Obsolete, Unsupported Fibre Channel Adapter"}; 2431 break; 2432 case PCI_DEVICE_ID_TIGERSHARK: 2433 oneConnect = 1; 2434 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2435 break; 2436 case PCI_DEVICE_ID_TOMCAT: 2437 oneConnect = 1; 2438 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2439 break; 2440 case PCI_DEVICE_ID_FALCON: 2441 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2442 "EmulexSecure Fibre"}; 2443 break; 2444 case PCI_DEVICE_ID_BALIUS: 2445 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2446 "Obsolete, Unsupported Fibre Channel Adapter"}; 2447 break; 2448 case PCI_DEVICE_ID_LANCER_FC: 2449 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2450 break; 2451 case PCI_DEVICE_ID_LANCER_FC_VF: 2452 m = (typeof(m)){"LPe16000", "PCIe", 2453 "Obsolete, Unsupported Fibre Channel Adapter"}; 2454 break; 2455 case PCI_DEVICE_ID_LANCER_FCOE: 2456 oneConnect = 1; 2457 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2458 break; 2459 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2460 oneConnect = 1; 2461 m = (typeof(m)){"OCe15100", "PCIe", 2462 "Obsolete, Unsupported FCoE"}; 2463 break; 2464 case PCI_DEVICE_ID_LANCER_G6_FC: 2465 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"}; 2466 break; 2467 case PCI_DEVICE_ID_SKYHAWK: 2468 case PCI_DEVICE_ID_SKYHAWK_VF: 2469 oneConnect = 1; 2470 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"}; 2471 break; 2472 default: 2473 m = (typeof(m)){"Unknown", "", ""}; 2474 break; 2475 } 2476 2477 if (mdp && mdp[0] == '\0') 2478 snprintf(mdp, 79,"%s", m.name); 2479 /* 2480 * oneConnect hba requires special processing, they are all initiators 2481 * and we put the port number on the end 2482 */ 2483 if (descp && descp[0] == '\0') { 2484 if (oneConnect) 2485 snprintf(descp, 255, 2486 "Emulex OneConnect %s, %s Initiator %s", 2487 m.name, m.function, 2488 phba->Port); 2489 else if (max_speed == 0) 2490 snprintf(descp, 255, 2491 "Emulex %s %s %s", 2492 m.name, m.bus, m.function); 2493 else 2494 snprintf(descp, 255, 2495 "Emulex %s %d%s %s %s", 2496 m.name, max_speed, (GE) ? "GE" : "Gb", 2497 m.bus, m.function); 2498 } 2499 } 2500 2501 /** 2502 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2503 * @phba: pointer to lpfc hba data structure. 2504 * @pring: pointer to a IOCB ring. 2505 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2506 * 2507 * This routine posts a given number of IOCBs with the associated DMA buffer 2508 * descriptors specified by the cnt argument to the given IOCB ring. 2509 * 2510 * Return codes 2511 * The number of IOCBs NOT able to be posted to the IOCB ring. 2512 **/ 2513 int 2514 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2515 { 2516 IOCB_t *icmd; 2517 struct lpfc_iocbq *iocb; 2518 struct lpfc_dmabuf *mp1, *mp2; 2519 2520 cnt += pring->missbufcnt; 2521 2522 /* While there are buffers to post */ 2523 while (cnt > 0) { 2524 /* Allocate buffer for command iocb */ 2525 iocb = lpfc_sli_get_iocbq(phba); 2526 if (iocb == NULL) { 2527 pring->missbufcnt = cnt; 2528 return cnt; 2529 } 2530 icmd = &iocb->iocb; 2531 2532 /* 2 buffers can be posted per command */ 2533 /* Allocate buffer to post */ 2534 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2535 if (mp1) 2536 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2537 if (!mp1 || !mp1->virt) { 2538 kfree(mp1); 2539 lpfc_sli_release_iocbq(phba, iocb); 2540 pring->missbufcnt = cnt; 2541 return cnt; 2542 } 2543 2544 INIT_LIST_HEAD(&mp1->list); 2545 /* Allocate buffer to post */ 2546 if (cnt > 1) { 2547 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2548 if (mp2) 2549 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2550 &mp2->phys); 2551 if (!mp2 || !mp2->virt) { 2552 kfree(mp2); 2553 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2554 kfree(mp1); 2555 lpfc_sli_release_iocbq(phba, iocb); 2556 pring->missbufcnt = cnt; 2557 return cnt; 2558 } 2559 2560 INIT_LIST_HEAD(&mp2->list); 2561 } else { 2562 mp2 = NULL; 2563 } 2564 2565 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2566 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2567 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2568 icmd->ulpBdeCount = 1; 2569 cnt--; 2570 if (mp2) { 2571 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2572 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2573 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2574 cnt--; 2575 icmd->ulpBdeCount = 2; 2576 } 2577 2578 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2579 icmd->ulpLe = 1; 2580 2581 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2582 IOCB_ERROR) { 2583 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2584 kfree(mp1); 2585 cnt++; 2586 if (mp2) { 2587 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2588 kfree(mp2); 2589 cnt++; 2590 } 2591 lpfc_sli_release_iocbq(phba, iocb); 2592 pring->missbufcnt = cnt; 2593 return cnt; 2594 } 2595 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2596 if (mp2) 2597 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2598 } 2599 pring->missbufcnt = 0; 2600 return 0; 2601 } 2602 2603 /** 2604 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2605 * @phba: pointer to lpfc hba data structure. 2606 * 2607 * This routine posts initial receive IOCB buffers to the ELS ring. The 2608 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2609 * set to 64 IOCBs. SLI3 only. 2610 * 2611 * Return codes 2612 * 0 - success (currently always success) 2613 **/ 2614 static int 2615 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2616 { 2617 struct lpfc_sli *psli = &phba->sli; 2618 2619 /* Ring 0, ELS / CT buffers */ 2620 lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2621 /* Ring 2 - FCP no buffers needed */ 2622 2623 return 0; 2624 } 2625 2626 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2627 2628 /** 2629 * lpfc_sha_init - Set up initial array of hash table entries 2630 * @HashResultPointer: pointer to an array as hash table. 2631 * 2632 * This routine sets up the initial values to the array of hash table entries 2633 * for the LC HBAs. 2634 **/ 2635 static void 2636 lpfc_sha_init(uint32_t * HashResultPointer) 2637 { 2638 HashResultPointer[0] = 0x67452301; 2639 HashResultPointer[1] = 0xEFCDAB89; 2640 HashResultPointer[2] = 0x98BADCFE; 2641 HashResultPointer[3] = 0x10325476; 2642 HashResultPointer[4] = 0xC3D2E1F0; 2643 } 2644 2645 /** 2646 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2647 * @HashResultPointer: pointer to an initial/result hash table. 2648 * @HashWorkingPointer: pointer to an working hash table. 2649 * 2650 * This routine iterates an initial hash table pointed by @HashResultPointer 2651 * with the values from the working hash table pointeed by @HashWorkingPointer. 2652 * The results are putting back to the initial hash table, returned through 2653 * the @HashResultPointer as the result hash table. 2654 **/ 2655 static void 2656 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2657 { 2658 int t; 2659 uint32_t TEMP; 2660 uint32_t A, B, C, D, E; 2661 t = 16; 2662 do { 2663 HashWorkingPointer[t] = 2664 S(1, 2665 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2666 8] ^ 2667 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2668 } while (++t <= 79); 2669 t = 0; 2670 A = HashResultPointer[0]; 2671 B = HashResultPointer[1]; 2672 C = HashResultPointer[2]; 2673 D = HashResultPointer[3]; 2674 E = HashResultPointer[4]; 2675 2676 do { 2677 if (t < 20) { 2678 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2679 } else if (t < 40) { 2680 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2681 } else if (t < 60) { 2682 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2683 } else { 2684 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2685 } 2686 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2687 E = D; 2688 D = C; 2689 C = S(30, B); 2690 B = A; 2691 A = TEMP; 2692 } while (++t <= 79); 2693 2694 HashResultPointer[0] += A; 2695 HashResultPointer[1] += B; 2696 HashResultPointer[2] += C; 2697 HashResultPointer[3] += D; 2698 HashResultPointer[4] += E; 2699 2700 } 2701 2702 /** 2703 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2704 * @RandomChallenge: pointer to the entry of host challenge random number array. 2705 * @HashWorking: pointer to the entry of the working hash array. 2706 * 2707 * This routine calculates the working hash array referred by @HashWorking 2708 * from the challenge random numbers associated with the host, referred by 2709 * @RandomChallenge. The result is put into the entry of the working hash 2710 * array and returned by reference through @HashWorking. 2711 **/ 2712 static void 2713 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2714 { 2715 *HashWorking = (*RandomChallenge ^ *HashWorking); 2716 } 2717 2718 /** 2719 * lpfc_hba_init - Perform special handling for LC HBA initialization 2720 * @phba: pointer to lpfc hba data structure. 2721 * @hbainit: pointer to an array of unsigned 32-bit integers. 2722 * 2723 * This routine performs the special handling for LC HBA initialization. 2724 **/ 2725 void 2726 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2727 { 2728 int t; 2729 uint32_t *HashWorking; 2730 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2731 2732 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2733 if (!HashWorking) 2734 return; 2735 2736 HashWorking[0] = HashWorking[78] = *pwwnn++; 2737 HashWorking[1] = HashWorking[79] = *pwwnn; 2738 2739 for (t = 0; t < 7; t++) 2740 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2741 2742 lpfc_sha_init(hbainit); 2743 lpfc_sha_iterate(hbainit, HashWorking); 2744 kfree(HashWorking); 2745 } 2746 2747 /** 2748 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2749 * @vport: pointer to a virtual N_Port data structure. 2750 * 2751 * This routine performs the necessary cleanups before deleting the @vport. 2752 * It invokes the discovery state machine to perform necessary state 2753 * transitions and to release the ndlps associated with the @vport. Note, 2754 * the physical port is treated as @vport 0. 2755 **/ 2756 void 2757 lpfc_cleanup(struct lpfc_vport *vport) 2758 { 2759 struct lpfc_hba *phba = vport->phba; 2760 struct lpfc_nodelist *ndlp, *next_ndlp; 2761 int i = 0; 2762 2763 if (phba->link_state > LPFC_LINK_DOWN) 2764 lpfc_port_link_failure(vport); 2765 2766 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2767 if (!NLP_CHK_NODE_ACT(ndlp)) { 2768 ndlp = lpfc_enable_node(vport, ndlp, 2769 NLP_STE_UNUSED_NODE); 2770 if (!ndlp) 2771 continue; 2772 spin_lock_irq(&phba->ndlp_lock); 2773 NLP_SET_FREE_REQ(ndlp); 2774 spin_unlock_irq(&phba->ndlp_lock); 2775 /* Trigger the release of the ndlp memory */ 2776 lpfc_nlp_put(ndlp); 2777 continue; 2778 } 2779 spin_lock_irq(&phba->ndlp_lock); 2780 if (NLP_CHK_FREE_REQ(ndlp)) { 2781 /* The ndlp should not be in memory free mode already */ 2782 spin_unlock_irq(&phba->ndlp_lock); 2783 continue; 2784 } else 2785 /* Indicate request for freeing ndlp memory */ 2786 NLP_SET_FREE_REQ(ndlp); 2787 spin_unlock_irq(&phba->ndlp_lock); 2788 2789 if (vport->port_type != LPFC_PHYSICAL_PORT && 2790 ndlp->nlp_DID == Fabric_DID) { 2791 /* Just free up ndlp with Fabric_DID for vports */ 2792 lpfc_nlp_put(ndlp); 2793 continue; 2794 } 2795 2796 /* take care of nodes in unused state before the state 2797 * machine taking action. 2798 */ 2799 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 2800 lpfc_nlp_put(ndlp); 2801 continue; 2802 } 2803 2804 if (ndlp->nlp_type & NLP_FABRIC) 2805 lpfc_disc_state_machine(vport, ndlp, NULL, 2806 NLP_EVT_DEVICE_RECOVERY); 2807 2808 lpfc_disc_state_machine(vport, ndlp, NULL, 2809 NLP_EVT_DEVICE_RM); 2810 } 2811 2812 /* At this point, ALL ndlp's should be gone 2813 * because of the previous NLP_EVT_DEVICE_RM. 2814 * Lets wait for this to happen, if needed. 2815 */ 2816 while (!list_empty(&vport->fc_nodes)) { 2817 if (i++ > 3000) { 2818 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2819 "0233 Nodelist not empty\n"); 2820 list_for_each_entry_safe(ndlp, next_ndlp, 2821 &vport->fc_nodes, nlp_listp) { 2822 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2823 LOG_NODE, 2824 "0282 did:x%x ndlp:x%p " 2825 "usgmap:x%x refcnt:%d\n", 2826 ndlp->nlp_DID, (void *)ndlp, 2827 ndlp->nlp_usg_map, 2828 kref_read(&ndlp->kref)); 2829 } 2830 break; 2831 } 2832 2833 /* Wait for any activity on ndlps to settle */ 2834 msleep(10); 2835 } 2836 lpfc_cleanup_vports_rrqs(vport, NULL); 2837 } 2838 2839 /** 2840 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2841 * @vport: pointer to a virtual N_Port data structure. 2842 * 2843 * This routine stops all the timers associated with a @vport. This function 2844 * is invoked before disabling or deleting a @vport. Note that the physical 2845 * port is treated as @vport 0. 2846 **/ 2847 void 2848 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2849 { 2850 del_timer_sync(&vport->els_tmofunc); 2851 del_timer_sync(&vport->delayed_disc_tmo); 2852 lpfc_can_disctmo(vport); 2853 return; 2854 } 2855 2856 /** 2857 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2858 * @phba: pointer to lpfc hba data structure. 2859 * 2860 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2861 * caller of this routine should already hold the host lock. 2862 **/ 2863 void 2864 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2865 { 2866 /* Clear pending FCF rediscovery wait flag */ 2867 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2868 2869 /* Now, try to stop the timer */ 2870 del_timer(&phba->fcf.redisc_wait); 2871 } 2872 2873 /** 2874 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2875 * @phba: pointer to lpfc hba data structure. 2876 * 2877 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2878 * checks whether the FCF rediscovery wait timer is pending with the host 2879 * lock held before proceeding with disabling the timer and clearing the 2880 * wait timer pendig flag. 2881 **/ 2882 void 2883 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2884 { 2885 spin_lock_irq(&phba->hbalock); 2886 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2887 /* FCF rediscovery timer already fired or stopped */ 2888 spin_unlock_irq(&phba->hbalock); 2889 return; 2890 } 2891 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2892 /* Clear failover in progress flags */ 2893 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2894 spin_unlock_irq(&phba->hbalock); 2895 } 2896 2897 /** 2898 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2899 * @phba: pointer to lpfc hba data structure. 2900 * 2901 * This routine stops all the timers associated with a HBA. This function is 2902 * invoked before either putting a HBA offline or unloading the driver. 2903 **/ 2904 void 2905 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2906 { 2907 lpfc_stop_vport_timers(phba->pport); 2908 del_timer_sync(&phba->sli.mbox_tmo); 2909 del_timer_sync(&phba->fabric_block_timer); 2910 del_timer_sync(&phba->eratt_poll); 2911 del_timer_sync(&phba->hb_tmofunc); 2912 if (phba->sli_rev == LPFC_SLI_REV4) { 2913 del_timer_sync(&phba->rrq_tmr); 2914 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2915 } 2916 phba->hb_outstanding = 0; 2917 2918 switch (phba->pci_dev_grp) { 2919 case LPFC_PCI_DEV_LP: 2920 /* Stop any LightPulse device specific driver timers */ 2921 del_timer_sync(&phba->fcp_poll_timer); 2922 break; 2923 case LPFC_PCI_DEV_OC: 2924 /* Stop any OneConnect device sepcific driver timers */ 2925 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2926 break; 2927 default: 2928 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2929 "0297 Invalid device group (x%x)\n", 2930 phba->pci_dev_grp); 2931 break; 2932 } 2933 return; 2934 } 2935 2936 /** 2937 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2938 * @phba: pointer to lpfc hba data structure. 2939 * 2940 * This routine marks a HBA's management interface as blocked. Once the HBA's 2941 * management interface is marked as blocked, all the user space access to 2942 * the HBA, whether they are from sysfs interface or libdfc interface will 2943 * all be blocked. The HBA is set to block the management interface when the 2944 * driver prepares the HBA interface for online or offline. 2945 **/ 2946 static void 2947 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action) 2948 { 2949 unsigned long iflag; 2950 uint8_t actcmd = MBX_HEARTBEAT; 2951 unsigned long timeout; 2952 2953 spin_lock_irqsave(&phba->hbalock, iflag); 2954 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2955 spin_unlock_irqrestore(&phba->hbalock, iflag); 2956 if (mbx_action == LPFC_MBX_NO_WAIT) 2957 return; 2958 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2959 spin_lock_irqsave(&phba->hbalock, iflag); 2960 if (phba->sli.mbox_active) { 2961 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2962 /* Determine how long we might wait for the active mailbox 2963 * command to be gracefully completed by firmware. 2964 */ 2965 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2966 phba->sli.mbox_active) * 1000) + jiffies; 2967 } 2968 spin_unlock_irqrestore(&phba->hbalock, iflag); 2969 2970 /* Wait for the outstnading mailbox command to complete */ 2971 while (phba->sli.mbox_active) { 2972 /* Check active mailbox complete status every 2ms */ 2973 msleep(2); 2974 if (time_after(jiffies, timeout)) { 2975 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2976 "2813 Mgmt IO is Blocked %x " 2977 "- mbox cmd %x still active\n", 2978 phba->sli.sli_flag, actcmd); 2979 break; 2980 } 2981 } 2982 } 2983 2984 /** 2985 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 2986 * @phba: pointer to lpfc hba data structure. 2987 * 2988 * Allocate RPIs for all active remote nodes. This is needed whenever 2989 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 2990 * is to fixup the temporary rpi assignments. 2991 **/ 2992 void 2993 lpfc_sli4_node_prep(struct lpfc_hba *phba) 2994 { 2995 struct lpfc_nodelist *ndlp, *next_ndlp; 2996 struct lpfc_vport **vports; 2997 int i, rpi; 2998 unsigned long flags; 2999 3000 if (phba->sli_rev != LPFC_SLI_REV4) 3001 return; 3002 3003 vports = lpfc_create_vport_work_array(phba); 3004 if (vports == NULL) 3005 return; 3006 3007 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3008 if (vports[i]->load_flag & FC_UNLOADING) 3009 continue; 3010 3011 list_for_each_entry_safe(ndlp, next_ndlp, 3012 &vports[i]->fc_nodes, 3013 nlp_listp) { 3014 if (!NLP_CHK_NODE_ACT(ndlp)) 3015 continue; 3016 rpi = lpfc_sli4_alloc_rpi(phba); 3017 if (rpi == LPFC_RPI_ALLOC_ERROR) { 3018 spin_lock_irqsave(&phba->ndlp_lock, flags); 3019 NLP_CLR_NODE_ACT(ndlp); 3020 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 3021 continue; 3022 } 3023 ndlp->nlp_rpi = rpi; 3024 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 3025 "0009 rpi:%x DID:%x " 3026 "flg:%x map:%x %p\n", ndlp->nlp_rpi, 3027 ndlp->nlp_DID, ndlp->nlp_flag, 3028 ndlp->nlp_usg_map, ndlp); 3029 } 3030 } 3031 lpfc_destroy_vport_work_array(phba, vports); 3032 } 3033 3034 /** 3035 * lpfc_online - Initialize and bring a HBA online 3036 * @phba: pointer to lpfc hba data structure. 3037 * 3038 * This routine initializes the HBA and brings a HBA online. During this 3039 * process, the management interface is blocked to prevent user space access 3040 * to the HBA interfering with the driver initialization. 3041 * 3042 * Return codes 3043 * 0 - successful 3044 * 1 - failed 3045 **/ 3046 int 3047 lpfc_online(struct lpfc_hba *phba) 3048 { 3049 struct lpfc_vport *vport; 3050 struct lpfc_vport **vports; 3051 int i, error = 0; 3052 bool vpis_cleared = false; 3053 3054 if (!phba) 3055 return 0; 3056 vport = phba->pport; 3057 3058 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 3059 return 0; 3060 3061 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3062 "0458 Bring Adapter online\n"); 3063 3064 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 3065 3066 if (phba->sli_rev == LPFC_SLI_REV4) { 3067 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 3068 lpfc_unblock_mgmt_io(phba); 3069 return 1; 3070 } 3071 spin_lock_irq(&phba->hbalock); 3072 if (!phba->sli4_hba.max_cfg_param.vpi_used) 3073 vpis_cleared = true; 3074 spin_unlock_irq(&phba->hbalock); 3075 3076 /* Reestablish the local initiator port. 3077 * The offline process destroyed the previous lport. 3078 */ 3079 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 3080 !phba->nvmet_support) { 3081 error = lpfc_nvme_create_localport(phba->pport); 3082 if (error) 3083 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3084 "6132 NVME restore reg failed " 3085 "on nvmei error x%x\n", error); 3086 } 3087 } else { 3088 lpfc_sli_queue_init(phba); 3089 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 3090 lpfc_unblock_mgmt_io(phba); 3091 return 1; 3092 } 3093 } 3094 3095 vports = lpfc_create_vport_work_array(phba); 3096 if (vports != NULL) { 3097 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3098 struct Scsi_Host *shost; 3099 shost = lpfc_shost_from_vport(vports[i]); 3100 spin_lock_irq(shost->host_lock); 3101 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 3102 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 3103 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3104 if (phba->sli_rev == LPFC_SLI_REV4) { 3105 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 3106 if ((vpis_cleared) && 3107 (vports[i]->port_type != 3108 LPFC_PHYSICAL_PORT)) 3109 vports[i]->vpi = 0; 3110 } 3111 spin_unlock_irq(shost->host_lock); 3112 } 3113 } 3114 lpfc_destroy_vport_work_array(phba, vports); 3115 3116 lpfc_unblock_mgmt_io(phba); 3117 return 0; 3118 } 3119 3120 /** 3121 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 3122 * @phba: pointer to lpfc hba data structure. 3123 * 3124 * This routine marks a HBA's management interface as not blocked. Once the 3125 * HBA's management interface is marked as not blocked, all the user space 3126 * access to the HBA, whether they are from sysfs interface or libdfc 3127 * interface will be allowed. The HBA is set to block the management interface 3128 * when the driver prepares the HBA interface for online or offline and then 3129 * set to unblock the management interface afterwards. 3130 **/ 3131 void 3132 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 3133 { 3134 unsigned long iflag; 3135 3136 spin_lock_irqsave(&phba->hbalock, iflag); 3137 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 3138 spin_unlock_irqrestore(&phba->hbalock, iflag); 3139 } 3140 3141 /** 3142 * lpfc_offline_prep - Prepare a HBA to be brought offline 3143 * @phba: pointer to lpfc hba data structure. 3144 * 3145 * This routine is invoked to prepare a HBA to be brought offline. It performs 3146 * unregistration login to all the nodes on all vports and flushes the mailbox 3147 * queue to make it ready to be brought offline. 3148 **/ 3149 void 3150 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) 3151 { 3152 struct lpfc_vport *vport = phba->pport; 3153 struct lpfc_nodelist *ndlp, *next_ndlp; 3154 struct lpfc_vport **vports; 3155 struct Scsi_Host *shost; 3156 int i; 3157 3158 if (vport->fc_flag & FC_OFFLINE_MODE) 3159 return; 3160 3161 lpfc_block_mgmt_io(phba, mbx_action); 3162 3163 lpfc_linkdown(phba); 3164 3165 /* Issue an unreg_login to all nodes on all vports */ 3166 vports = lpfc_create_vport_work_array(phba); 3167 if (vports != NULL) { 3168 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3169 if (vports[i]->load_flag & FC_UNLOADING) 3170 continue; 3171 shost = lpfc_shost_from_vport(vports[i]); 3172 spin_lock_irq(shost->host_lock); 3173 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 3174 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3175 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 3176 spin_unlock_irq(shost->host_lock); 3177 3178 shost = lpfc_shost_from_vport(vports[i]); 3179 list_for_each_entry_safe(ndlp, next_ndlp, 3180 &vports[i]->fc_nodes, 3181 nlp_listp) { 3182 if (!NLP_CHK_NODE_ACT(ndlp)) 3183 continue; 3184 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 3185 continue; 3186 if (ndlp->nlp_type & NLP_FABRIC) { 3187 lpfc_disc_state_machine(vports[i], ndlp, 3188 NULL, NLP_EVT_DEVICE_RECOVERY); 3189 lpfc_disc_state_machine(vports[i], ndlp, 3190 NULL, NLP_EVT_DEVICE_RM); 3191 } 3192 spin_lock_irq(shost->host_lock); 3193 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 3194 spin_unlock_irq(shost->host_lock); 3195 /* 3196 * Whenever an SLI4 port goes offline, free the 3197 * RPI. Get a new RPI when the adapter port 3198 * comes back online. 3199 */ 3200 if (phba->sli_rev == LPFC_SLI_REV4) { 3201 lpfc_printf_vlog(ndlp->vport, 3202 KERN_INFO, LOG_NODE, 3203 "0011 lpfc_offline: " 3204 "ndlp:x%p did %x " 3205 "usgmap:x%x rpi:%x\n", 3206 ndlp, ndlp->nlp_DID, 3207 ndlp->nlp_usg_map, 3208 ndlp->nlp_rpi); 3209 3210 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 3211 } 3212 lpfc_unreg_rpi(vports[i], ndlp); 3213 } 3214 } 3215 } 3216 lpfc_destroy_vport_work_array(phba, vports); 3217 3218 lpfc_sli_mbox_sys_shutdown(phba, mbx_action); 3219 3220 if (phba->wq) 3221 flush_workqueue(phba->wq); 3222 } 3223 3224 /** 3225 * lpfc_offline - Bring a HBA offline 3226 * @phba: pointer to lpfc hba data structure. 3227 * 3228 * This routine actually brings a HBA offline. It stops all the timers 3229 * associated with the HBA, brings down the SLI layer, and eventually 3230 * marks the HBA as in offline state for the upper layer protocol. 3231 **/ 3232 void 3233 lpfc_offline(struct lpfc_hba *phba) 3234 { 3235 struct Scsi_Host *shost; 3236 struct lpfc_vport **vports; 3237 int i; 3238 3239 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 3240 return; 3241 3242 /* stop port and all timers associated with this hba */ 3243 lpfc_stop_port(phba); 3244 3245 /* Tear down the local and target port registrations. The 3246 * nvme transports need to cleanup. 3247 */ 3248 lpfc_nvmet_destroy_targetport(phba); 3249 lpfc_nvme_destroy_localport(phba->pport); 3250 3251 vports = lpfc_create_vport_work_array(phba); 3252 if (vports != NULL) 3253 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3254 lpfc_stop_vport_timers(vports[i]); 3255 lpfc_destroy_vport_work_array(phba, vports); 3256 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3257 "0460 Bring Adapter offline\n"); 3258 /* Bring down the SLI Layer and cleanup. The HBA is offline 3259 now. */ 3260 lpfc_sli_hba_down(phba); 3261 spin_lock_irq(&phba->hbalock); 3262 phba->work_ha = 0; 3263 spin_unlock_irq(&phba->hbalock); 3264 vports = lpfc_create_vport_work_array(phba); 3265 if (vports != NULL) 3266 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3267 shost = lpfc_shost_from_vport(vports[i]); 3268 spin_lock_irq(shost->host_lock); 3269 vports[i]->work_port_events = 0; 3270 vports[i]->fc_flag |= FC_OFFLINE_MODE; 3271 spin_unlock_irq(shost->host_lock); 3272 } 3273 lpfc_destroy_vport_work_array(phba, vports); 3274 } 3275 3276 /** 3277 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 3278 * @phba: pointer to lpfc hba data structure. 3279 * 3280 * This routine is to free all the SCSI buffers and IOCBs from the driver 3281 * list back to kernel. It is called from lpfc_pci_remove_one to free 3282 * the internal resources before the device is removed from the system. 3283 **/ 3284 static void 3285 lpfc_scsi_free(struct lpfc_hba *phba) 3286 { 3287 struct lpfc_scsi_buf *sb, *sb_next; 3288 3289 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 3290 return; 3291 3292 spin_lock_irq(&phba->hbalock); 3293 3294 /* Release all the lpfc_scsi_bufs maintained by this host. */ 3295 3296 spin_lock(&phba->scsi_buf_list_put_lock); 3297 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put, 3298 list) { 3299 list_del(&sb->list); 3300 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3301 sb->dma_handle); 3302 kfree(sb); 3303 phba->total_scsi_bufs--; 3304 } 3305 spin_unlock(&phba->scsi_buf_list_put_lock); 3306 3307 spin_lock(&phba->scsi_buf_list_get_lock); 3308 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get, 3309 list) { 3310 list_del(&sb->list); 3311 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3312 sb->dma_handle); 3313 kfree(sb); 3314 phba->total_scsi_bufs--; 3315 } 3316 spin_unlock(&phba->scsi_buf_list_get_lock); 3317 spin_unlock_irq(&phba->hbalock); 3318 } 3319 /** 3320 * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists 3321 * @phba: pointer to lpfc hba data structure. 3322 * 3323 * This routine is to free all the NVME buffers and IOCBs from the driver 3324 * list back to kernel. It is called from lpfc_pci_remove_one to free 3325 * the internal resources before the device is removed from the system. 3326 **/ 3327 static void 3328 lpfc_nvme_free(struct lpfc_hba *phba) 3329 { 3330 struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next; 3331 3332 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 3333 return; 3334 3335 spin_lock_irq(&phba->hbalock); 3336 3337 /* Release all the lpfc_nvme_bufs maintained by this host. */ 3338 spin_lock(&phba->nvme_buf_list_put_lock); 3339 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3340 &phba->lpfc_nvme_buf_list_put, list) { 3341 list_del(&lpfc_ncmd->list); 3342 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, 3343 lpfc_ncmd->dma_handle); 3344 kfree(lpfc_ncmd); 3345 phba->total_nvme_bufs--; 3346 } 3347 spin_unlock(&phba->nvme_buf_list_put_lock); 3348 3349 spin_lock(&phba->nvme_buf_list_get_lock); 3350 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3351 &phba->lpfc_nvme_buf_list_get, list) { 3352 list_del(&lpfc_ncmd->list); 3353 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, 3354 lpfc_ncmd->dma_handle); 3355 kfree(lpfc_ncmd); 3356 phba->total_nvme_bufs--; 3357 } 3358 spin_unlock(&phba->nvme_buf_list_get_lock); 3359 spin_unlock_irq(&phba->hbalock); 3360 } 3361 /** 3362 * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping 3363 * @phba: pointer to lpfc hba data structure. 3364 * 3365 * This routine first calculates the sizes of the current els and allocated 3366 * scsi sgl lists, and then goes through all sgls to updates the physical 3367 * XRIs assigned due to port function reset. During port initialization, the 3368 * current els and allocated scsi sgl lists are 0s. 3369 * 3370 * Return codes 3371 * 0 - successful (for now, it always returns 0) 3372 **/ 3373 int 3374 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba) 3375 { 3376 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3377 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3378 LIST_HEAD(els_sgl_list); 3379 int rc; 3380 3381 /* 3382 * update on pci function's els xri-sgl list 3383 */ 3384 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3385 3386 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 3387 /* els xri-sgl expanded */ 3388 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 3389 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3390 "3157 ELS xri-sgl count increased from " 3391 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3392 els_xri_cnt); 3393 /* allocate the additional els sgls */ 3394 for (i = 0; i < xri_cnt; i++) { 3395 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3396 GFP_KERNEL); 3397 if (sglq_entry == NULL) { 3398 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3399 "2562 Failure to allocate an " 3400 "ELS sgl entry:%d\n", i); 3401 rc = -ENOMEM; 3402 goto out_free_mem; 3403 } 3404 sglq_entry->buff_type = GEN_BUFF_TYPE; 3405 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 3406 &sglq_entry->phys); 3407 if (sglq_entry->virt == NULL) { 3408 kfree(sglq_entry); 3409 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3410 "2563 Failure to allocate an " 3411 "ELS mbuf:%d\n", i); 3412 rc = -ENOMEM; 3413 goto out_free_mem; 3414 } 3415 sglq_entry->sgl = sglq_entry->virt; 3416 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 3417 sglq_entry->state = SGL_FREED; 3418 list_add_tail(&sglq_entry->list, &els_sgl_list); 3419 } 3420 spin_lock_irq(&phba->hbalock); 3421 spin_lock(&phba->sli4_hba.sgl_list_lock); 3422 list_splice_init(&els_sgl_list, 3423 &phba->sli4_hba.lpfc_els_sgl_list); 3424 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3425 spin_unlock_irq(&phba->hbalock); 3426 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 3427 /* els xri-sgl shrinked */ 3428 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 3429 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3430 "3158 ELS xri-sgl count decreased from " 3431 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3432 els_xri_cnt); 3433 spin_lock_irq(&phba->hbalock); 3434 spin_lock(&phba->sli4_hba.sgl_list_lock); 3435 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, 3436 &els_sgl_list); 3437 /* release extra els sgls from list */ 3438 for (i = 0; i < xri_cnt; i++) { 3439 list_remove_head(&els_sgl_list, 3440 sglq_entry, struct lpfc_sglq, list); 3441 if (sglq_entry) { 3442 __lpfc_mbuf_free(phba, sglq_entry->virt, 3443 sglq_entry->phys); 3444 kfree(sglq_entry); 3445 } 3446 } 3447 list_splice_init(&els_sgl_list, 3448 &phba->sli4_hba.lpfc_els_sgl_list); 3449 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3450 spin_unlock_irq(&phba->hbalock); 3451 } else 3452 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3453 "3163 ELS xri-sgl count unchanged: %d\n", 3454 els_xri_cnt); 3455 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 3456 3457 /* update xris to els sgls on the list */ 3458 sglq_entry = NULL; 3459 sglq_entry_next = NULL; 3460 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3461 &phba->sli4_hba.lpfc_els_sgl_list, list) { 3462 lxri = lpfc_sli4_next_xritag(phba); 3463 if (lxri == NO_XRI) { 3464 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3465 "2400 Failed to allocate xri for " 3466 "ELS sgl\n"); 3467 rc = -ENOMEM; 3468 goto out_free_mem; 3469 } 3470 sglq_entry->sli4_lxritag = lxri; 3471 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3472 } 3473 return 0; 3474 3475 out_free_mem: 3476 lpfc_free_els_sgl_list(phba); 3477 return rc; 3478 } 3479 3480 /** 3481 * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping 3482 * @phba: pointer to lpfc hba data structure. 3483 * 3484 * This routine first calculates the sizes of the current els and allocated 3485 * scsi sgl lists, and then goes through all sgls to updates the physical 3486 * XRIs assigned due to port function reset. During port initialization, the 3487 * current els and allocated scsi sgl lists are 0s. 3488 * 3489 * Return codes 3490 * 0 - successful (for now, it always returns 0) 3491 **/ 3492 int 3493 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba) 3494 { 3495 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3496 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3497 uint16_t nvmet_xri_cnt; 3498 LIST_HEAD(nvmet_sgl_list); 3499 int rc; 3500 3501 /* 3502 * update on pci function's nvmet xri-sgl list 3503 */ 3504 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3505 3506 /* For NVMET, ALL remaining XRIs are dedicated for IO processing */ 3507 nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3508 if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) { 3509 /* els xri-sgl expanded */ 3510 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt; 3511 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3512 "6302 NVMET xri-sgl cnt grew from %d to %d\n", 3513 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt); 3514 /* allocate the additional nvmet sgls */ 3515 for (i = 0; i < xri_cnt; i++) { 3516 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3517 GFP_KERNEL); 3518 if (sglq_entry == NULL) { 3519 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3520 "6303 Failure to allocate an " 3521 "NVMET sgl entry:%d\n", i); 3522 rc = -ENOMEM; 3523 goto out_free_mem; 3524 } 3525 sglq_entry->buff_type = NVMET_BUFF_TYPE; 3526 sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0, 3527 &sglq_entry->phys); 3528 if (sglq_entry->virt == NULL) { 3529 kfree(sglq_entry); 3530 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3531 "6304 Failure to allocate an " 3532 "NVMET buf:%d\n", i); 3533 rc = -ENOMEM; 3534 goto out_free_mem; 3535 } 3536 sglq_entry->sgl = sglq_entry->virt; 3537 memset(sglq_entry->sgl, 0, 3538 phba->cfg_sg_dma_buf_size); 3539 sglq_entry->state = SGL_FREED; 3540 list_add_tail(&sglq_entry->list, &nvmet_sgl_list); 3541 } 3542 spin_lock_irq(&phba->hbalock); 3543 spin_lock(&phba->sli4_hba.sgl_list_lock); 3544 list_splice_init(&nvmet_sgl_list, 3545 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3546 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3547 spin_unlock_irq(&phba->hbalock); 3548 } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) { 3549 /* nvmet xri-sgl shrunk */ 3550 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt; 3551 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3552 "6305 NVMET xri-sgl count decreased from " 3553 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt, 3554 nvmet_xri_cnt); 3555 spin_lock_irq(&phba->hbalock); 3556 spin_lock(&phba->sli4_hba.sgl_list_lock); 3557 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, 3558 &nvmet_sgl_list); 3559 /* release extra nvmet sgls from list */ 3560 for (i = 0; i < xri_cnt; i++) { 3561 list_remove_head(&nvmet_sgl_list, 3562 sglq_entry, struct lpfc_sglq, list); 3563 if (sglq_entry) { 3564 lpfc_nvmet_buf_free(phba, sglq_entry->virt, 3565 sglq_entry->phys); 3566 kfree(sglq_entry); 3567 } 3568 } 3569 list_splice_init(&nvmet_sgl_list, 3570 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3571 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3572 spin_unlock_irq(&phba->hbalock); 3573 } else 3574 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3575 "6306 NVMET xri-sgl count unchanged: %d\n", 3576 nvmet_xri_cnt); 3577 phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt; 3578 3579 /* update xris to nvmet sgls on the list */ 3580 sglq_entry = NULL; 3581 sglq_entry_next = NULL; 3582 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3583 &phba->sli4_hba.lpfc_nvmet_sgl_list, list) { 3584 lxri = lpfc_sli4_next_xritag(phba); 3585 if (lxri == NO_XRI) { 3586 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3587 "6307 Failed to allocate xri for " 3588 "NVMET sgl\n"); 3589 rc = -ENOMEM; 3590 goto out_free_mem; 3591 } 3592 sglq_entry->sli4_lxritag = lxri; 3593 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3594 } 3595 return 0; 3596 3597 out_free_mem: 3598 lpfc_free_nvmet_sgl_list(phba); 3599 return rc; 3600 } 3601 3602 /** 3603 * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping 3604 * @phba: pointer to lpfc hba data structure. 3605 * 3606 * This routine first calculates the sizes of the current els and allocated 3607 * scsi sgl lists, and then goes through all sgls to updates the physical 3608 * XRIs assigned due to port function reset. During port initialization, the 3609 * current els and allocated scsi sgl lists are 0s. 3610 * 3611 * Return codes 3612 * 0 - successful (for now, it always returns 0) 3613 **/ 3614 int 3615 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba) 3616 { 3617 struct lpfc_scsi_buf *psb, *psb_next; 3618 uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt; 3619 LIST_HEAD(scsi_sgl_list); 3620 int rc; 3621 3622 /* 3623 * update on pci function's els xri-sgl list 3624 */ 3625 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3626 phba->total_scsi_bufs = 0; 3627 3628 /* 3629 * update on pci function's allocated scsi xri-sgl list 3630 */ 3631 /* maximum number of xris available for scsi buffers */ 3632 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - 3633 els_xri_cnt; 3634 3635 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 3636 return 0; 3637 3638 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 3639 phba->sli4_hba.scsi_xri_max = /* Split them up */ 3640 (phba->sli4_hba.scsi_xri_max * 3641 phba->cfg_xri_split) / 100; 3642 3643 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3644 spin_lock(&phba->scsi_buf_list_put_lock); 3645 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list); 3646 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list); 3647 spin_unlock(&phba->scsi_buf_list_put_lock); 3648 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3649 3650 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3651 "6060 Current allocated SCSI xri-sgl count:%d, " 3652 "maximum SCSI xri count:%d (split:%d)\n", 3653 phba->sli4_hba.scsi_xri_cnt, 3654 phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split); 3655 3656 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { 3657 /* max scsi xri shrinked below the allocated scsi buffers */ 3658 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - 3659 phba->sli4_hba.scsi_xri_max; 3660 /* release the extra allocated scsi buffers */ 3661 for (i = 0; i < scsi_xri_cnt; i++) { 3662 list_remove_head(&scsi_sgl_list, psb, 3663 struct lpfc_scsi_buf, list); 3664 if (psb) { 3665 dma_pool_free(phba->lpfc_sg_dma_buf_pool, 3666 psb->data, psb->dma_handle); 3667 kfree(psb); 3668 } 3669 } 3670 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3671 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; 3672 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3673 } 3674 3675 /* update xris associated to remaining allocated scsi buffers */ 3676 psb = NULL; 3677 psb_next = NULL; 3678 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { 3679 lxri = lpfc_sli4_next_xritag(phba); 3680 if (lxri == NO_XRI) { 3681 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3682 "2560 Failed to allocate xri for " 3683 "scsi buffer\n"); 3684 rc = -ENOMEM; 3685 goto out_free_mem; 3686 } 3687 psb->cur_iocbq.sli4_lxritag = lxri; 3688 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3689 } 3690 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3691 spin_lock(&phba->scsi_buf_list_put_lock); 3692 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get); 3693 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 3694 spin_unlock(&phba->scsi_buf_list_put_lock); 3695 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3696 return 0; 3697 3698 out_free_mem: 3699 lpfc_scsi_free(phba); 3700 return rc; 3701 } 3702 3703 static uint64_t 3704 lpfc_get_wwpn(struct lpfc_hba *phba) 3705 { 3706 uint64_t wwn; 3707 int rc; 3708 LPFC_MBOXQ_t *mboxq; 3709 MAILBOX_t *mb; 3710 3711 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 3712 GFP_KERNEL); 3713 if (!mboxq) 3714 return (uint64_t)-1; 3715 3716 /* First get WWN of HBA instance */ 3717 lpfc_read_nv(phba, mboxq); 3718 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 3719 if (rc != MBX_SUCCESS) { 3720 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3721 "6019 Mailbox failed , mbxCmd x%x " 3722 "READ_NV, mbxStatus x%x\n", 3723 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 3724 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 3725 mempool_free(mboxq, phba->mbox_mem_pool); 3726 return (uint64_t) -1; 3727 } 3728 mb = &mboxq->u.mb; 3729 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t)); 3730 /* wwn is WWPN of HBA instance */ 3731 mempool_free(mboxq, phba->mbox_mem_pool); 3732 if (phba->sli_rev == LPFC_SLI_REV4) 3733 return be64_to_cpu(wwn); 3734 else 3735 return rol64(wwn, 32); 3736 } 3737 3738 /** 3739 * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping 3740 * @phba: pointer to lpfc hba data structure. 3741 * 3742 * This routine first calculates the sizes of the current els and allocated 3743 * scsi sgl lists, and then goes through all sgls to updates the physical 3744 * XRIs assigned due to port function reset. During port initialization, the 3745 * current els and allocated scsi sgl lists are 0s. 3746 * 3747 * Return codes 3748 * 0 - successful (for now, it always returns 0) 3749 **/ 3750 int 3751 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba) 3752 { 3753 struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL; 3754 uint16_t i, lxri, els_xri_cnt; 3755 uint16_t nvme_xri_cnt, nvme_xri_max; 3756 LIST_HEAD(nvme_sgl_list); 3757 int rc; 3758 3759 phba->total_nvme_bufs = 0; 3760 3761 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 3762 return 0; 3763 /* 3764 * update on pci function's allocated nvme xri-sgl list 3765 */ 3766 3767 /* maximum number of xris available for nvme buffers */ 3768 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3769 nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3770 phba->sli4_hba.nvme_xri_max = nvme_xri_max; 3771 phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max; 3772 3773 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3774 "6074 Current allocated NVME xri-sgl count:%d, " 3775 "maximum NVME xri count:%d\n", 3776 phba->sli4_hba.nvme_xri_cnt, 3777 phba->sli4_hba.nvme_xri_max); 3778 3779 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3780 spin_lock(&phba->nvme_buf_list_put_lock); 3781 list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list); 3782 list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list); 3783 spin_unlock(&phba->nvme_buf_list_put_lock); 3784 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3785 3786 if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) { 3787 /* max nvme xri shrunk below the allocated nvme buffers */ 3788 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3789 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt - 3790 phba->sli4_hba.nvme_xri_max; 3791 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3792 /* release the extra allocated nvme buffers */ 3793 for (i = 0; i < nvme_xri_cnt; i++) { 3794 list_remove_head(&nvme_sgl_list, lpfc_ncmd, 3795 struct lpfc_nvme_buf, list); 3796 if (lpfc_ncmd) { 3797 dma_pool_free(phba->lpfc_sg_dma_buf_pool, 3798 lpfc_ncmd->data, 3799 lpfc_ncmd->dma_handle); 3800 kfree(lpfc_ncmd); 3801 } 3802 } 3803 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3804 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt; 3805 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3806 } 3807 3808 /* update xris associated to remaining allocated nvme buffers */ 3809 lpfc_ncmd = NULL; 3810 lpfc_ncmd_next = NULL; 3811 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3812 &nvme_sgl_list, list) { 3813 lxri = lpfc_sli4_next_xritag(phba); 3814 if (lxri == NO_XRI) { 3815 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3816 "6075 Failed to allocate xri for " 3817 "nvme buffer\n"); 3818 rc = -ENOMEM; 3819 goto out_free_mem; 3820 } 3821 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri; 3822 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3823 } 3824 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3825 spin_lock(&phba->nvme_buf_list_put_lock); 3826 list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get); 3827 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 3828 spin_unlock(&phba->nvme_buf_list_put_lock); 3829 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3830 return 0; 3831 3832 out_free_mem: 3833 lpfc_nvme_free(phba); 3834 return rc; 3835 } 3836 3837 /** 3838 * lpfc_create_port - Create an FC port 3839 * @phba: pointer to lpfc hba data structure. 3840 * @instance: a unique integer ID to this FC port. 3841 * @dev: pointer to the device data structure. 3842 * 3843 * This routine creates a FC port for the upper layer protocol. The FC port 3844 * can be created on top of either a physical port or a virtual port provided 3845 * by the HBA. This routine also allocates a SCSI host data structure (shost) 3846 * and associates the FC port created before adding the shost into the SCSI 3847 * layer. 3848 * 3849 * Return codes 3850 * @vport - pointer to the virtual N_Port data structure. 3851 * NULL - port create failed. 3852 **/ 3853 struct lpfc_vport * 3854 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 3855 { 3856 struct lpfc_vport *vport; 3857 struct Scsi_Host *shost = NULL; 3858 int error = 0; 3859 int i; 3860 uint64_t wwn; 3861 bool use_no_reset_hba = false; 3862 int rc; 3863 3864 if (lpfc_no_hba_reset_cnt) { 3865 if (phba->sli_rev < LPFC_SLI_REV4 && 3866 dev == &phba->pcidev->dev) { 3867 /* Reset the port first */ 3868 lpfc_sli_brdrestart(phba); 3869 rc = lpfc_sli_chipset_init(phba); 3870 if (rc) 3871 return NULL; 3872 } 3873 wwn = lpfc_get_wwpn(phba); 3874 } 3875 3876 for (i = 0; i < lpfc_no_hba_reset_cnt; i++) { 3877 if (wwn == lpfc_no_hba_reset[i]) { 3878 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3879 "6020 Setting use_no_reset port=%llx\n", 3880 wwn); 3881 use_no_reset_hba = true; 3882 break; 3883 } 3884 } 3885 3886 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 3887 if (dev != &phba->pcidev->dev) { 3888 shost = scsi_host_alloc(&lpfc_vport_template, 3889 sizeof(struct lpfc_vport)); 3890 } else { 3891 if (!use_no_reset_hba) 3892 shost = scsi_host_alloc(&lpfc_template, 3893 sizeof(struct lpfc_vport)); 3894 else 3895 shost = scsi_host_alloc(&lpfc_template_no_hr, 3896 sizeof(struct lpfc_vport)); 3897 } 3898 } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 3899 shost = scsi_host_alloc(&lpfc_template_nvme, 3900 sizeof(struct lpfc_vport)); 3901 } 3902 if (!shost) 3903 goto out; 3904 3905 vport = (struct lpfc_vport *) shost->hostdata; 3906 vport->phba = phba; 3907 vport->load_flag |= FC_LOADING; 3908 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3909 vport->fc_rscn_flush = 0; 3910 lpfc_get_vport_cfgparam(vport); 3911 3912 shost->unique_id = instance; 3913 shost->max_id = LPFC_MAX_TARGET; 3914 shost->max_lun = vport->cfg_max_luns; 3915 shost->this_id = -1; 3916 shost->max_cmd_len = 16; 3917 shost->nr_hw_queues = phba->cfg_fcp_io_channel; 3918 if (phba->sli_rev == LPFC_SLI_REV4) { 3919 shost->dma_boundary = 3920 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3921 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 3922 } 3923 3924 /* 3925 * Set initial can_queue value since 0 is no longer supported and 3926 * scsi_add_host will fail. This will be adjusted later based on the 3927 * max xri value determined in hba setup. 3928 */ 3929 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3930 if (dev != &phba->pcidev->dev) { 3931 shost->transportt = lpfc_vport_transport_template; 3932 vport->port_type = LPFC_NPIV_PORT; 3933 } else { 3934 shost->transportt = lpfc_transport_template; 3935 vport->port_type = LPFC_PHYSICAL_PORT; 3936 } 3937 3938 /* Initialize all internally managed lists. */ 3939 INIT_LIST_HEAD(&vport->fc_nodes); 3940 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3941 spin_lock_init(&vport->work_port_lock); 3942 3943 timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0); 3944 3945 timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0); 3946 3947 timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0); 3948 3949 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3950 if (error) 3951 goto out_put_shost; 3952 3953 spin_lock_irq(&phba->hbalock); 3954 list_add_tail(&vport->listentry, &phba->port_list); 3955 spin_unlock_irq(&phba->hbalock); 3956 return vport; 3957 3958 out_put_shost: 3959 scsi_host_put(shost); 3960 out: 3961 return NULL; 3962 } 3963 3964 /** 3965 * destroy_port - destroy an FC port 3966 * @vport: pointer to an lpfc virtual N_Port data structure. 3967 * 3968 * This routine destroys a FC port from the upper layer protocol. All the 3969 * resources associated with the port are released. 3970 **/ 3971 void 3972 destroy_port(struct lpfc_vport *vport) 3973 { 3974 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3975 struct lpfc_hba *phba = vport->phba; 3976 3977 lpfc_debugfs_terminate(vport); 3978 fc_remove_host(shost); 3979 scsi_remove_host(shost); 3980 3981 spin_lock_irq(&phba->hbalock); 3982 list_del_init(&vport->listentry); 3983 spin_unlock_irq(&phba->hbalock); 3984 3985 lpfc_cleanup(vport); 3986 return; 3987 } 3988 3989 /** 3990 * lpfc_get_instance - Get a unique integer ID 3991 * 3992 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 3993 * uses the kernel idr facility to perform the task. 3994 * 3995 * Return codes: 3996 * instance - a unique integer ID allocated as the new instance. 3997 * -1 - lpfc get instance failed. 3998 **/ 3999 int 4000 lpfc_get_instance(void) 4001 { 4002 int ret; 4003 4004 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); 4005 return ret < 0 ? -1 : ret; 4006 } 4007 4008 /** 4009 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 4010 * @shost: pointer to SCSI host data structure. 4011 * @time: elapsed time of the scan in jiffies. 4012 * 4013 * This routine is called by the SCSI layer with a SCSI host to determine 4014 * whether the scan host is finished. 4015 * 4016 * Note: there is no scan_start function as adapter initialization will have 4017 * asynchronously kicked off the link initialization. 4018 * 4019 * Return codes 4020 * 0 - SCSI host scan is not over yet. 4021 * 1 - SCSI host scan is over. 4022 **/ 4023 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 4024 { 4025 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4026 struct lpfc_hba *phba = vport->phba; 4027 int stat = 0; 4028 4029 spin_lock_irq(shost->host_lock); 4030 4031 if (vport->load_flag & FC_UNLOADING) { 4032 stat = 1; 4033 goto finished; 4034 } 4035 if (time >= msecs_to_jiffies(30 * 1000)) { 4036 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4037 "0461 Scanning longer than 30 " 4038 "seconds. Continuing initialization\n"); 4039 stat = 1; 4040 goto finished; 4041 } 4042 if (time >= msecs_to_jiffies(15 * 1000) && 4043 phba->link_state <= LPFC_LINK_DOWN) { 4044 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4045 "0465 Link down longer than 15 " 4046 "seconds. Continuing initialization\n"); 4047 stat = 1; 4048 goto finished; 4049 } 4050 4051 if (vport->port_state != LPFC_VPORT_READY) 4052 goto finished; 4053 if (vport->num_disc_nodes || vport->fc_prli_sent) 4054 goto finished; 4055 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000)) 4056 goto finished; 4057 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 4058 goto finished; 4059 4060 stat = 1; 4061 4062 finished: 4063 spin_unlock_irq(shost->host_lock); 4064 return stat; 4065 } 4066 4067 /** 4068 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 4069 * @shost: pointer to SCSI host data structure. 4070 * 4071 * This routine initializes a given SCSI host attributes on a FC port. The 4072 * SCSI host can be either on top of a physical port or a virtual port. 4073 **/ 4074 void lpfc_host_attrib_init(struct Scsi_Host *shost) 4075 { 4076 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4077 struct lpfc_hba *phba = vport->phba; 4078 /* 4079 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 4080 */ 4081 4082 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 4083 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 4084 fc_host_supported_classes(shost) = FC_COS_CLASS3; 4085 4086 memset(fc_host_supported_fc4s(shost), 0, 4087 sizeof(fc_host_supported_fc4s(shost))); 4088 fc_host_supported_fc4s(shost)[2] = 1; 4089 fc_host_supported_fc4s(shost)[7] = 1; 4090 4091 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 4092 sizeof fc_host_symbolic_name(shost)); 4093 4094 fc_host_supported_speeds(shost) = 0; 4095 if (phba->lmt & LMT_32Gb) 4096 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT; 4097 if (phba->lmt & LMT_16Gb) 4098 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 4099 if (phba->lmt & LMT_10Gb) 4100 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 4101 if (phba->lmt & LMT_8Gb) 4102 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 4103 if (phba->lmt & LMT_4Gb) 4104 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 4105 if (phba->lmt & LMT_2Gb) 4106 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 4107 if (phba->lmt & LMT_1Gb) 4108 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 4109 4110 fc_host_maxframe_size(shost) = 4111 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 4112 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 4113 4114 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 4115 4116 /* This value is also unchanging */ 4117 memset(fc_host_active_fc4s(shost), 0, 4118 sizeof(fc_host_active_fc4s(shost))); 4119 fc_host_active_fc4s(shost)[2] = 1; 4120 fc_host_active_fc4s(shost)[7] = 1; 4121 4122 fc_host_max_npiv_vports(shost) = phba->max_vpi; 4123 spin_lock_irq(shost->host_lock); 4124 vport->load_flag &= ~FC_LOADING; 4125 spin_unlock_irq(shost->host_lock); 4126 } 4127 4128 /** 4129 * lpfc_stop_port_s3 - Stop SLI3 device port 4130 * @phba: pointer to lpfc hba data structure. 4131 * 4132 * This routine is invoked to stop an SLI3 device port, it stops the device 4133 * from generating interrupts and stops the device driver's timers for the 4134 * device. 4135 **/ 4136 static void 4137 lpfc_stop_port_s3(struct lpfc_hba *phba) 4138 { 4139 /* Clear all interrupt enable conditions */ 4140 writel(0, phba->HCregaddr); 4141 readl(phba->HCregaddr); /* flush */ 4142 /* Clear all pending interrupts */ 4143 writel(0xffffffff, phba->HAregaddr); 4144 readl(phba->HAregaddr); /* flush */ 4145 4146 /* Reset some HBA SLI setup states */ 4147 lpfc_stop_hba_timers(phba); 4148 phba->pport->work_port_events = 0; 4149 } 4150 4151 /** 4152 * lpfc_stop_port_s4 - Stop SLI4 device port 4153 * @phba: pointer to lpfc hba data structure. 4154 * 4155 * This routine is invoked to stop an SLI4 device port, it stops the device 4156 * from generating interrupts and stops the device driver's timers for the 4157 * device. 4158 **/ 4159 static void 4160 lpfc_stop_port_s4(struct lpfc_hba *phba) 4161 { 4162 /* Reset some HBA SLI4 setup states */ 4163 lpfc_stop_hba_timers(phba); 4164 phba->pport->work_port_events = 0; 4165 phba->sli4_hba.intr_enable = 0; 4166 } 4167 4168 /** 4169 * lpfc_stop_port - Wrapper function for stopping hba port 4170 * @phba: Pointer to HBA context object. 4171 * 4172 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 4173 * the API jump table function pointer from the lpfc_hba struct. 4174 **/ 4175 void 4176 lpfc_stop_port(struct lpfc_hba *phba) 4177 { 4178 phba->lpfc_stop_port(phba); 4179 4180 if (phba->wq) 4181 flush_workqueue(phba->wq); 4182 } 4183 4184 /** 4185 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 4186 * @phba: Pointer to hba for which this call is being executed. 4187 * 4188 * This routine starts the timer waiting for the FCF rediscovery to complete. 4189 **/ 4190 void 4191 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 4192 { 4193 unsigned long fcf_redisc_wait_tmo = 4194 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 4195 /* Start fcf rediscovery wait period timer */ 4196 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 4197 spin_lock_irq(&phba->hbalock); 4198 /* Allow action to new fcf asynchronous event */ 4199 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 4200 /* Mark the FCF rediscovery pending state */ 4201 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 4202 spin_unlock_irq(&phba->hbalock); 4203 } 4204 4205 /** 4206 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 4207 * @ptr: Map to lpfc_hba data structure pointer. 4208 * 4209 * This routine is invoked when waiting for FCF table rediscover has been 4210 * timed out. If new FCF record(s) has (have) been discovered during the 4211 * wait period, a new FCF event shall be added to the FCOE async event 4212 * list, and then worker thread shall be waked up for processing from the 4213 * worker thread context. 4214 **/ 4215 static void 4216 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t) 4217 { 4218 struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait); 4219 4220 /* Don't send FCF rediscovery event if timer cancelled */ 4221 spin_lock_irq(&phba->hbalock); 4222 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 4223 spin_unlock_irq(&phba->hbalock); 4224 return; 4225 } 4226 /* Clear FCF rediscovery timer pending flag */ 4227 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 4228 /* FCF rediscovery event to worker thread */ 4229 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 4230 spin_unlock_irq(&phba->hbalock); 4231 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 4232 "2776 FCF rediscover quiescent timer expired\n"); 4233 /* wake up worker thread */ 4234 lpfc_worker_wake_up(phba); 4235 } 4236 4237 /** 4238 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 4239 * @phba: pointer to lpfc hba data structure. 4240 * @acqe_link: pointer to the async link completion queue entry. 4241 * 4242 * This routine is to parse the SLI4 link-attention link fault code and 4243 * translate it into the base driver's read link attention mailbox command 4244 * status. 4245 * 4246 * Return: Link-attention status in terms of base driver's coding. 4247 **/ 4248 static uint16_t 4249 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 4250 struct lpfc_acqe_link *acqe_link) 4251 { 4252 uint16_t latt_fault; 4253 4254 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 4255 case LPFC_ASYNC_LINK_FAULT_NONE: 4256 case LPFC_ASYNC_LINK_FAULT_LOCAL: 4257 case LPFC_ASYNC_LINK_FAULT_REMOTE: 4258 latt_fault = 0; 4259 break; 4260 default: 4261 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4262 "0398 Invalid link fault code: x%x\n", 4263 bf_get(lpfc_acqe_link_fault, acqe_link)); 4264 latt_fault = MBXERR_ERROR; 4265 break; 4266 } 4267 return latt_fault; 4268 } 4269 4270 /** 4271 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 4272 * @phba: pointer to lpfc hba data structure. 4273 * @acqe_link: pointer to the async link completion queue entry. 4274 * 4275 * This routine is to parse the SLI4 link attention type and translate it 4276 * into the base driver's link attention type coding. 4277 * 4278 * Return: Link attention type in terms of base driver's coding. 4279 **/ 4280 static uint8_t 4281 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 4282 struct lpfc_acqe_link *acqe_link) 4283 { 4284 uint8_t att_type; 4285 4286 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 4287 case LPFC_ASYNC_LINK_STATUS_DOWN: 4288 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 4289 att_type = LPFC_ATT_LINK_DOWN; 4290 break; 4291 case LPFC_ASYNC_LINK_STATUS_UP: 4292 /* Ignore physical link up events - wait for logical link up */ 4293 att_type = LPFC_ATT_RESERVED; 4294 break; 4295 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 4296 att_type = LPFC_ATT_LINK_UP; 4297 break; 4298 default: 4299 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4300 "0399 Invalid link attention type: x%x\n", 4301 bf_get(lpfc_acqe_link_status, acqe_link)); 4302 att_type = LPFC_ATT_RESERVED; 4303 break; 4304 } 4305 return att_type; 4306 } 4307 4308 /** 4309 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 4310 * @phba: pointer to lpfc hba data structure. 4311 * 4312 * This routine is to get an SLI3 FC port's link speed in Mbps. 4313 * 4314 * Return: link speed in terms of Mbps. 4315 **/ 4316 uint32_t 4317 lpfc_sli_port_speed_get(struct lpfc_hba *phba) 4318 { 4319 uint32_t link_speed; 4320 4321 if (!lpfc_is_link_up(phba)) 4322 return 0; 4323 4324 if (phba->sli_rev <= LPFC_SLI_REV3) { 4325 switch (phba->fc_linkspeed) { 4326 case LPFC_LINK_SPEED_1GHZ: 4327 link_speed = 1000; 4328 break; 4329 case LPFC_LINK_SPEED_2GHZ: 4330 link_speed = 2000; 4331 break; 4332 case LPFC_LINK_SPEED_4GHZ: 4333 link_speed = 4000; 4334 break; 4335 case LPFC_LINK_SPEED_8GHZ: 4336 link_speed = 8000; 4337 break; 4338 case LPFC_LINK_SPEED_10GHZ: 4339 link_speed = 10000; 4340 break; 4341 case LPFC_LINK_SPEED_16GHZ: 4342 link_speed = 16000; 4343 break; 4344 default: 4345 link_speed = 0; 4346 } 4347 } else { 4348 if (phba->sli4_hba.link_state.logical_speed) 4349 link_speed = 4350 phba->sli4_hba.link_state.logical_speed; 4351 else 4352 link_speed = phba->sli4_hba.link_state.speed; 4353 } 4354 return link_speed; 4355 } 4356 4357 /** 4358 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 4359 * @phba: pointer to lpfc hba data structure. 4360 * @evt_code: asynchronous event code. 4361 * @speed_code: asynchronous event link speed code. 4362 * 4363 * This routine is to parse the giving SLI4 async event link speed code into 4364 * value of Mbps for the link speed. 4365 * 4366 * Return: link speed in terms of Mbps. 4367 **/ 4368 static uint32_t 4369 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 4370 uint8_t speed_code) 4371 { 4372 uint32_t port_speed; 4373 4374 switch (evt_code) { 4375 case LPFC_TRAILER_CODE_LINK: 4376 switch (speed_code) { 4377 case LPFC_ASYNC_LINK_SPEED_ZERO: 4378 port_speed = 0; 4379 break; 4380 case LPFC_ASYNC_LINK_SPEED_10MBPS: 4381 port_speed = 10; 4382 break; 4383 case LPFC_ASYNC_LINK_SPEED_100MBPS: 4384 port_speed = 100; 4385 break; 4386 case LPFC_ASYNC_LINK_SPEED_1GBPS: 4387 port_speed = 1000; 4388 break; 4389 case LPFC_ASYNC_LINK_SPEED_10GBPS: 4390 port_speed = 10000; 4391 break; 4392 case LPFC_ASYNC_LINK_SPEED_20GBPS: 4393 port_speed = 20000; 4394 break; 4395 case LPFC_ASYNC_LINK_SPEED_25GBPS: 4396 port_speed = 25000; 4397 break; 4398 case LPFC_ASYNC_LINK_SPEED_40GBPS: 4399 port_speed = 40000; 4400 break; 4401 default: 4402 port_speed = 0; 4403 } 4404 break; 4405 case LPFC_TRAILER_CODE_FC: 4406 switch (speed_code) { 4407 case LPFC_FC_LA_SPEED_UNKNOWN: 4408 port_speed = 0; 4409 break; 4410 case LPFC_FC_LA_SPEED_1G: 4411 port_speed = 1000; 4412 break; 4413 case LPFC_FC_LA_SPEED_2G: 4414 port_speed = 2000; 4415 break; 4416 case LPFC_FC_LA_SPEED_4G: 4417 port_speed = 4000; 4418 break; 4419 case LPFC_FC_LA_SPEED_8G: 4420 port_speed = 8000; 4421 break; 4422 case LPFC_FC_LA_SPEED_10G: 4423 port_speed = 10000; 4424 break; 4425 case LPFC_FC_LA_SPEED_16G: 4426 port_speed = 16000; 4427 break; 4428 case LPFC_FC_LA_SPEED_32G: 4429 port_speed = 32000; 4430 break; 4431 default: 4432 port_speed = 0; 4433 } 4434 break; 4435 default: 4436 port_speed = 0; 4437 } 4438 return port_speed; 4439 } 4440 4441 /** 4442 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 4443 * @phba: pointer to lpfc hba data structure. 4444 * @acqe_link: pointer to the async link completion queue entry. 4445 * 4446 * This routine is to handle the SLI4 asynchronous FCoE link event. 4447 **/ 4448 static void 4449 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 4450 struct lpfc_acqe_link *acqe_link) 4451 { 4452 struct lpfc_dmabuf *mp; 4453 LPFC_MBOXQ_t *pmb; 4454 MAILBOX_t *mb; 4455 struct lpfc_mbx_read_top *la; 4456 uint8_t att_type; 4457 int rc; 4458 4459 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 4460 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 4461 return; 4462 phba->fcoe_eventtag = acqe_link->event_tag; 4463 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4464 if (!pmb) { 4465 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4466 "0395 The mboxq allocation failed\n"); 4467 return; 4468 } 4469 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4470 if (!mp) { 4471 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4472 "0396 The lpfc_dmabuf allocation failed\n"); 4473 goto out_free_pmb; 4474 } 4475 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4476 if (!mp->virt) { 4477 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4478 "0397 The mbuf allocation failed\n"); 4479 goto out_free_dmabuf; 4480 } 4481 4482 /* Cleanup any outstanding ELS commands */ 4483 lpfc_els_flush_all_cmd(phba); 4484 4485 /* Block ELS IOCBs until we have done process link event */ 4486 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4487 4488 /* Update link event statistics */ 4489 phba->sli.slistat.link_event++; 4490 4491 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4492 lpfc_read_topology(phba, pmb, mp); 4493 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4494 pmb->vport = phba->pport; 4495 4496 /* Keep the link status for extra SLI4 state machine reference */ 4497 phba->sli4_hba.link_state.speed = 4498 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 4499 bf_get(lpfc_acqe_link_speed, acqe_link)); 4500 phba->sli4_hba.link_state.duplex = 4501 bf_get(lpfc_acqe_link_duplex, acqe_link); 4502 phba->sli4_hba.link_state.status = 4503 bf_get(lpfc_acqe_link_status, acqe_link); 4504 phba->sli4_hba.link_state.type = 4505 bf_get(lpfc_acqe_link_type, acqe_link); 4506 phba->sli4_hba.link_state.number = 4507 bf_get(lpfc_acqe_link_number, acqe_link); 4508 phba->sli4_hba.link_state.fault = 4509 bf_get(lpfc_acqe_link_fault, acqe_link); 4510 phba->sli4_hba.link_state.logical_speed = 4511 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 4512 4513 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4514 "2900 Async FC/FCoE Link event - Speed:%dGBit " 4515 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 4516 "Logical speed:%dMbps Fault:%d\n", 4517 phba->sli4_hba.link_state.speed, 4518 phba->sli4_hba.link_state.topology, 4519 phba->sli4_hba.link_state.status, 4520 phba->sli4_hba.link_state.type, 4521 phba->sli4_hba.link_state.number, 4522 phba->sli4_hba.link_state.logical_speed, 4523 phba->sli4_hba.link_state.fault); 4524 /* 4525 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 4526 * topology info. Note: Optional for non FC-AL ports. 4527 */ 4528 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 4529 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4530 if (rc == MBX_NOT_FINISHED) 4531 goto out_free_dmabuf; 4532 return; 4533 } 4534 /* 4535 * For FCoE Mode: fill in all the topology information we need and call 4536 * the READ_TOPOLOGY completion routine to continue without actually 4537 * sending the READ_TOPOLOGY mailbox command to the port. 4538 */ 4539 /* Parse and translate status field */ 4540 mb = &pmb->u.mb; 4541 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 4542 4543 /* Parse and translate link attention fields */ 4544 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 4545 la->eventTag = acqe_link->event_tag; 4546 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 4547 bf_set(lpfc_mbx_read_top_link_spd, la, 4548 (bf_get(lpfc_acqe_link_speed, acqe_link))); 4549 4550 /* Fake the the following irrelvant fields */ 4551 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 4552 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 4553 bf_set(lpfc_mbx_read_top_il, la, 0); 4554 bf_set(lpfc_mbx_read_top_pb, la, 0); 4555 bf_set(lpfc_mbx_read_top_fa, la, 0); 4556 bf_set(lpfc_mbx_read_top_mm, la, 0); 4557 4558 /* Invoke the lpfc_handle_latt mailbox command callback function */ 4559 lpfc_mbx_cmpl_read_topology(phba, pmb); 4560 4561 return; 4562 4563 out_free_dmabuf: 4564 kfree(mp); 4565 out_free_pmb: 4566 mempool_free(pmb, phba->mbox_mem_pool); 4567 } 4568 4569 /** 4570 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 4571 * @phba: pointer to lpfc hba data structure. 4572 * @acqe_fc: pointer to the async fc completion queue entry. 4573 * 4574 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 4575 * that the event was received and then issue a read_topology mailbox command so 4576 * that the rest of the driver will treat it the same as SLI3. 4577 **/ 4578 static void 4579 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 4580 { 4581 struct lpfc_dmabuf *mp; 4582 LPFC_MBOXQ_t *pmb; 4583 MAILBOX_t *mb; 4584 struct lpfc_mbx_read_top *la; 4585 int rc; 4586 4587 if (bf_get(lpfc_trailer_type, acqe_fc) != 4588 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 4589 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4590 "2895 Non FC link Event detected.(%d)\n", 4591 bf_get(lpfc_trailer_type, acqe_fc)); 4592 return; 4593 } 4594 /* Keep the link status for extra SLI4 state machine reference */ 4595 phba->sli4_hba.link_state.speed = 4596 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 4597 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 4598 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 4599 phba->sli4_hba.link_state.topology = 4600 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 4601 phba->sli4_hba.link_state.status = 4602 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 4603 phba->sli4_hba.link_state.type = 4604 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 4605 phba->sli4_hba.link_state.number = 4606 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 4607 phba->sli4_hba.link_state.fault = 4608 bf_get(lpfc_acqe_link_fault, acqe_fc); 4609 phba->sli4_hba.link_state.logical_speed = 4610 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 4611 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4612 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 4613 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 4614 "%dMbps Fault:%d\n", 4615 phba->sli4_hba.link_state.speed, 4616 phba->sli4_hba.link_state.topology, 4617 phba->sli4_hba.link_state.status, 4618 phba->sli4_hba.link_state.type, 4619 phba->sli4_hba.link_state.number, 4620 phba->sli4_hba.link_state.logical_speed, 4621 phba->sli4_hba.link_state.fault); 4622 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4623 if (!pmb) { 4624 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4625 "2897 The mboxq allocation failed\n"); 4626 return; 4627 } 4628 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4629 if (!mp) { 4630 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4631 "2898 The lpfc_dmabuf allocation failed\n"); 4632 goto out_free_pmb; 4633 } 4634 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4635 if (!mp->virt) { 4636 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4637 "2899 The mbuf allocation failed\n"); 4638 goto out_free_dmabuf; 4639 } 4640 4641 /* Cleanup any outstanding ELS commands */ 4642 lpfc_els_flush_all_cmd(phba); 4643 4644 /* Block ELS IOCBs until we have done process link event */ 4645 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4646 4647 /* Update link event statistics */ 4648 phba->sli.slistat.link_event++; 4649 4650 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4651 lpfc_read_topology(phba, pmb, mp); 4652 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4653 pmb->vport = phba->pport; 4654 4655 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) { 4656 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK); 4657 4658 switch (phba->sli4_hba.link_state.status) { 4659 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN: 4660 phba->link_flag |= LS_MDS_LINK_DOWN; 4661 break; 4662 case LPFC_FC_LA_TYPE_MDS_LOOPBACK: 4663 phba->link_flag |= LS_MDS_LOOPBACK; 4664 break; 4665 default: 4666 break; 4667 } 4668 4669 /* Parse and translate status field */ 4670 mb = &pmb->u.mb; 4671 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, 4672 (void *)acqe_fc); 4673 4674 /* Parse and translate link attention fields */ 4675 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop; 4676 la->eventTag = acqe_fc->event_tag; 4677 4678 if (phba->sli4_hba.link_state.status == 4679 LPFC_FC_LA_TYPE_UNEXP_WWPN) { 4680 bf_set(lpfc_mbx_read_top_att_type, la, 4681 LPFC_FC_LA_TYPE_UNEXP_WWPN); 4682 } else { 4683 bf_set(lpfc_mbx_read_top_att_type, la, 4684 LPFC_FC_LA_TYPE_LINK_DOWN); 4685 } 4686 /* Invoke the mailbox command callback function */ 4687 lpfc_mbx_cmpl_read_topology(phba, pmb); 4688 4689 return; 4690 } 4691 4692 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4693 if (rc == MBX_NOT_FINISHED) 4694 goto out_free_dmabuf; 4695 return; 4696 4697 out_free_dmabuf: 4698 kfree(mp); 4699 out_free_pmb: 4700 mempool_free(pmb, phba->mbox_mem_pool); 4701 } 4702 4703 /** 4704 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 4705 * @phba: pointer to lpfc hba data structure. 4706 * @acqe_fc: pointer to the async SLI completion queue entry. 4707 * 4708 * This routine is to handle the SLI4 asynchronous SLI events. 4709 **/ 4710 static void 4711 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 4712 { 4713 char port_name; 4714 char message[128]; 4715 uint8_t status; 4716 uint8_t evt_type; 4717 uint8_t operational = 0; 4718 struct temp_event temp_event_data; 4719 struct lpfc_acqe_misconfigured_event *misconfigured; 4720 struct Scsi_Host *shost; 4721 4722 evt_type = bf_get(lpfc_trailer_type, acqe_sli); 4723 4724 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4725 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 4726 "x%08x SLI Event Type:%d\n", 4727 acqe_sli->event_data1, acqe_sli->event_data2, 4728 evt_type); 4729 4730 port_name = phba->Port[0]; 4731 if (port_name == 0x00) 4732 port_name = '?'; /* get port name is empty */ 4733 4734 switch (evt_type) { 4735 case LPFC_SLI_EVENT_TYPE_OVER_TEMP: 4736 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4737 temp_event_data.event_code = LPFC_THRESHOLD_TEMP; 4738 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4739 4740 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 4741 "3190 Over Temperature:%d Celsius- Port Name %c\n", 4742 acqe_sli->event_data1, port_name); 4743 4744 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 4745 shost = lpfc_shost_from_vport(phba->pport); 4746 fc_host_post_vendor_event(shost, fc_get_event_number(), 4747 sizeof(temp_event_data), 4748 (char *)&temp_event_data, 4749 SCSI_NL_VID_TYPE_PCI 4750 | PCI_VENDOR_ID_EMULEX); 4751 break; 4752 case LPFC_SLI_EVENT_TYPE_NORM_TEMP: 4753 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4754 temp_event_data.event_code = LPFC_NORMAL_TEMP; 4755 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4756 4757 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4758 "3191 Normal Temperature:%d Celsius - Port Name %c\n", 4759 acqe_sli->event_data1, port_name); 4760 4761 shost = lpfc_shost_from_vport(phba->pport); 4762 fc_host_post_vendor_event(shost, fc_get_event_number(), 4763 sizeof(temp_event_data), 4764 (char *)&temp_event_data, 4765 SCSI_NL_VID_TYPE_PCI 4766 | PCI_VENDOR_ID_EMULEX); 4767 break; 4768 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED: 4769 misconfigured = (struct lpfc_acqe_misconfigured_event *) 4770 &acqe_sli->event_data1; 4771 4772 /* fetch the status for this port */ 4773 switch (phba->sli4_hba.lnk_info.lnk_no) { 4774 case LPFC_LINK_NUMBER_0: 4775 status = bf_get(lpfc_sli_misconfigured_port0_state, 4776 &misconfigured->theEvent); 4777 operational = bf_get(lpfc_sli_misconfigured_port0_op, 4778 &misconfigured->theEvent); 4779 break; 4780 case LPFC_LINK_NUMBER_1: 4781 status = bf_get(lpfc_sli_misconfigured_port1_state, 4782 &misconfigured->theEvent); 4783 operational = bf_get(lpfc_sli_misconfigured_port1_op, 4784 &misconfigured->theEvent); 4785 break; 4786 case LPFC_LINK_NUMBER_2: 4787 status = bf_get(lpfc_sli_misconfigured_port2_state, 4788 &misconfigured->theEvent); 4789 operational = bf_get(lpfc_sli_misconfigured_port2_op, 4790 &misconfigured->theEvent); 4791 break; 4792 case LPFC_LINK_NUMBER_3: 4793 status = bf_get(lpfc_sli_misconfigured_port3_state, 4794 &misconfigured->theEvent); 4795 operational = bf_get(lpfc_sli_misconfigured_port3_op, 4796 &misconfigured->theEvent); 4797 break; 4798 default: 4799 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4800 "3296 " 4801 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED " 4802 "event: Invalid link %d", 4803 phba->sli4_hba.lnk_info.lnk_no); 4804 return; 4805 } 4806 4807 /* Skip if optic state unchanged */ 4808 if (phba->sli4_hba.lnk_info.optic_state == status) 4809 return; 4810 4811 switch (status) { 4812 case LPFC_SLI_EVENT_STATUS_VALID: 4813 sprintf(message, "Physical Link is functional"); 4814 break; 4815 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 4816 sprintf(message, "Optics faulted/incorrectly " 4817 "installed/not installed - Reseat optics, " 4818 "if issue not resolved, replace."); 4819 break; 4820 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 4821 sprintf(message, 4822 "Optics of two types installed - Remove one " 4823 "optic or install matching pair of optics."); 4824 break; 4825 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 4826 sprintf(message, "Incompatible optics - Replace with " 4827 "compatible optics for card to function."); 4828 break; 4829 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED: 4830 sprintf(message, "Unqualified optics - Replace with " 4831 "Avago optics for Warranty and Technical " 4832 "Support - Link is%s operational", 4833 (operational) ? " not" : ""); 4834 break; 4835 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED: 4836 sprintf(message, "Uncertified optics - Replace with " 4837 "Avago-certified optics to enable link " 4838 "operation - Link is%s operational", 4839 (operational) ? " not" : ""); 4840 break; 4841 default: 4842 /* firmware is reporting a status we don't know about */ 4843 sprintf(message, "Unknown event status x%02x", status); 4844 break; 4845 } 4846 phba->sli4_hba.lnk_info.optic_state = status; 4847 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4848 "3176 Port Name %c %s\n", port_name, message); 4849 break; 4850 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT: 4851 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4852 "3192 Remote DPort Test Initiated - " 4853 "Event Data1:x%08x Event Data2: x%08x\n", 4854 acqe_sli->event_data1, acqe_sli->event_data2); 4855 break; 4856 default: 4857 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4858 "3193 Async SLI event - Event Data1:x%08x Event Data2:" 4859 "x%08x SLI Event Type:%d\n", 4860 acqe_sli->event_data1, acqe_sli->event_data2, 4861 evt_type); 4862 break; 4863 } 4864 } 4865 4866 /** 4867 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 4868 * @vport: pointer to vport data structure. 4869 * 4870 * This routine is to perform Clear Virtual Link (CVL) on a vport in 4871 * response to a CVL event. 4872 * 4873 * Return the pointer to the ndlp with the vport if successful, otherwise 4874 * return NULL. 4875 **/ 4876 static struct lpfc_nodelist * 4877 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 4878 { 4879 struct lpfc_nodelist *ndlp; 4880 struct Scsi_Host *shost; 4881 struct lpfc_hba *phba; 4882 4883 if (!vport) 4884 return NULL; 4885 phba = vport->phba; 4886 if (!phba) 4887 return NULL; 4888 ndlp = lpfc_findnode_did(vport, Fabric_DID); 4889 if (!ndlp) { 4890 /* Cannot find existing Fabric ndlp, so allocate a new one */ 4891 ndlp = lpfc_nlp_init(vport, Fabric_DID); 4892 if (!ndlp) 4893 return 0; 4894 /* Set the node type */ 4895 ndlp->nlp_type |= NLP_FABRIC; 4896 /* Put ndlp onto node list */ 4897 lpfc_enqueue_node(vport, ndlp); 4898 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4899 /* re-setup ndlp without removing from node list */ 4900 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 4901 if (!ndlp) 4902 return 0; 4903 } 4904 if ((phba->pport->port_state < LPFC_FLOGI) && 4905 (phba->pport->port_state != LPFC_VPORT_FAILED)) 4906 return NULL; 4907 /* If virtual link is not yet instantiated ignore CVL */ 4908 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 4909 && (vport->port_state != LPFC_VPORT_FAILED)) 4910 return NULL; 4911 shost = lpfc_shost_from_vport(vport); 4912 if (!shost) 4913 return NULL; 4914 lpfc_linkdown_port(vport); 4915 lpfc_cleanup_pending_mbox(vport); 4916 spin_lock_irq(shost->host_lock); 4917 vport->fc_flag |= FC_VPORT_CVL_RCVD; 4918 spin_unlock_irq(shost->host_lock); 4919 4920 return ndlp; 4921 } 4922 4923 /** 4924 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 4925 * @vport: pointer to lpfc hba data structure. 4926 * 4927 * This routine is to perform Clear Virtual Link (CVL) on all vports in 4928 * response to a FCF dead event. 4929 **/ 4930 static void 4931 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 4932 { 4933 struct lpfc_vport **vports; 4934 int i; 4935 4936 vports = lpfc_create_vport_work_array(phba); 4937 if (vports) 4938 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 4939 lpfc_sli4_perform_vport_cvl(vports[i]); 4940 lpfc_destroy_vport_work_array(phba, vports); 4941 } 4942 4943 /** 4944 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 4945 * @phba: pointer to lpfc hba data structure. 4946 * @acqe_link: pointer to the async fcoe completion queue entry. 4947 * 4948 * This routine is to handle the SLI4 asynchronous fcoe event. 4949 **/ 4950 static void 4951 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 4952 struct lpfc_acqe_fip *acqe_fip) 4953 { 4954 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 4955 int rc; 4956 struct lpfc_vport *vport; 4957 struct lpfc_nodelist *ndlp; 4958 struct Scsi_Host *shost; 4959 int active_vlink_present; 4960 struct lpfc_vport **vports; 4961 int i; 4962 4963 phba->fc_eventTag = acqe_fip->event_tag; 4964 phba->fcoe_eventtag = acqe_fip->event_tag; 4965 switch (event_type) { 4966 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 4967 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 4968 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 4969 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4970 LOG_DISCOVERY, 4971 "2546 New FCF event, evt_tag:x%x, " 4972 "index:x%x\n", 4973 acqe_fip->event_tag, 4974 acqe_fip->index); 4975 else 4976 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 4977 LOG_DISCOVERY, 4978 "2788 FCF param modified event, " 4979 "evt_tag:x%x, index:x%x\n", 4980 acqe_fip->event_tag, 4981 acqe_fip->index); 4982 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4983 /* 4984 * During period of FCF discovery, read the FCF 4985 * table record indexed by the event to update 4986 * FCF roundrobin failover eligible FCF bmask. 4987 */ 4988 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4989 LOG_DISCOVERY, 4990 "2779 Read FCF (x%x) for updating " 4991 "roundrobin FCF failover bmask\n", 4992 acqe_fip->index); 4993 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 4994 } 4995 4996 /* If the FCF discovery is in progress, do nothing. */ 4997 spin_lock_irq(&phba->hbalock); 4998 if (phba->hba_flag & FCF_TS_INPROG) { 4999 spin_unlock_irq(&phba->hbalock); 5000 break; 5001 } 5002 /* If fast FCF failover rescan event is pending, do nothing */ 5003 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 5004 spin_unlock_irq(&phba->hbalock); 5005 break; 5006 } 5007 5008 /* If the FCF has been in discovered state, do nothing. */ 5009 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 5010 spin_unlock_irq(&phba->hbalock); 5011 break; 5012 } 5013 spin_unlock_irq(&phba->hbalock); 5014 5015 /* Otherwise, scan the entire FCF table and re-discover SAN */ 5016 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5017 "2770 Start FCF table scan per async FCF " 5018 "event, evt_tag:x%x, index:x%x\n", 5019 acqe_fip->event_tag, acqe_fip->index); 5020 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 5021 LPFC_FCOE_FCF_GET_FIRST); 5022 if (rc) 5023 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5024 "2547 Issue FCF scan read FCF mailbox " 5025 "command failed (x%x)\n", rc); 5026 break; 5027 5028 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 5029 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5030 "2548 FCF Table full count 0x%x tag 0x%x\n", 5031 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 5032 acqe_fip->event_tag); 5033 break; 5034 5035 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 5036 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 5037 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5038 "2549 FCF (x%x) disconnected from network, " 5039 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 5040 /* 5041 * If we are in the middle of FCF failover process, clear 5042 * the corresponding FCF bit in the roundrobin bitmap. 5043 */ 5044 spin_lock_irq(&phba->hbalock); 5045 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && 5046 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) { 5047 spin_unlock_irq(&phba->hbalock); 5048 /* Update FLOGI FCF failover eligible FCF bmask */ 5049 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 5050 break; 5051 } 5052 spin_unlock_irq(&phba->hbalock); 5053 5054 /* If the event is not for currently used fcf do nothing */ 5055 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 5056 break; 5057 5058 /* 5059 * Otherwise, request the port to rediscover the entire FCF 5060 * table for a fast recovery from case that the current FCF 5061 * is no longer valid as we are not in the middle of FCF 5062 * failover process already. 5063 */ 5064 spin_lock_irq(&phba->hbalock); 5065 /* Mark the fast failover process in progress */ 5066 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 5067 spin_unlock_irq(&phba->hbalock); 5068 5069 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5070 "2771 Start FCF fast failover process due to " 5071 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 5072 "\n", acqe_fip->event_tag, acqe_fip->index); 5073 rc = lpfc_sli4_redisc_fcf_table(phba); 5074 if (rc) { 5075 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5076 LOG_DISCOVERY, 5077 "2772 Issue FCF rediscover mabilbox " 5078 "command failed, fail through to FCF " 5079 "dead event\n"); 5080 spin_lock_irq(&phba->hbalock); 5081 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 5082 spin_unlock_irq(&phba->hbalock); 5083 /* 5084 * Last resort will fail over by treating this 5085 * as a link down to FCF registration. 5086 */ 5087 lpfc_sli4_fcf_dead_failthrough(phba); 5088 } else { 5089 /* Reset FCF roundrobin bmask for new discovery */ 5090 lpfc_sli4_clear_fcf_rr_bmask(phba); 5091 /* 5092 * Handling fast FCF failover to a DEAD FCF event is 5093 * considered equalivant to receiving CVL to all vports. 5094 */ 5095 lpfc_sli4_perform_all_vport_cvl(phba); 5096 } 5097 break; 5098 case LPFC_FIP_EVENT_TYPE_CVL: 5099 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 5100 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5101 "2718 Clear Virtual Link Received for VPI 0x%x" 5102 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 5103 5104 vport = lpfc_find_vport_by_vpid(phba, 5105 acqe_fip->index); 5106 ndlp = lpfc_sli4_perform_vport_cvl(vport); 5107 if (!ndlp) 5108 break; 5109 active_vlink_present = 0; 5110 5111 vports = lpfc_create_vport_work_array(phba); 5112 if (vports) { 5113 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 5114 i++) { 5115 if ((!(vports[i]->fc_flag & 5116 FC_VPORT_CVL_RCVD)) && 5117 (vports[i]->port_state > LPFC_FDISC)) { 5118 active_vlink_present = 1; 5119 break; 5120 } 5121 } 5122 lpfc_destroy_vport_work_array(phba, vports); 5123 } 5124 5125 /* 5126 * Don't re-instantiate if vport is marked for deletion. 5127 * If we are here first then vport_delete is going to wait 5128 * for discovery to complete. 5129 */ 5130 if (!(vport->load_flag & FC_UNLOADING) && 5131 active_vlink_present) { 5132 /* 5133 * If there are other active VLinks present, 5134 * re-instantiate the Vlink using FDISC. 5135 */ 5136 mod_timer(&ndlp->nlp_delayfunc, 5137 jiffies + msecs_to_jiffies(1000)); 5138 shost = lpfc_shost_from_vport(vport); 5139 spin_lock_irq(shost->host_lock); 5140 ndlp->nlp_flag |= NLP_DELAY_TMO; 5141 spin_unlock_irq(shost->host_lock); 5142 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 5143 vport->port_state = LPFC_FDISC; 5144 } else { 5145 /* 5146 * Otherwise, we request port to rediscover 5147 * the entire FCF table for a fast recovery 5148 * from possible case that the current FCF 5149 * is no longer valid if we are not already 5150 * in the FCF failover process. 5151 */ 5152 spin_lock_irq(&phba->hbalock); 5153 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 5154 spin_unlock_irq(&phba->hbalock); 5155 break; 5156 } 5157 /* Mark the fast failover process in progress */ 5158 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 5159 spin_unlock_irq(&phba->hbalock); 5160 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 5161 LOG_DISCOVERY, 5162 "2773 Start FCF failover per CVL, " 5163 "evt_tag:x%x\n", acqe_fip->event_tag); 5164 rc = lpfc_sli4_redisc_fcf_table(phba); 5165 if (rc) { 5166 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5167 LOG_DISCOVERY, 5168 "2774 Issue FCF rediscover " 5169 "mabilbox command failed, " 5170 "through to CVL event\n"); 5171 spin_lock_irq(&phba->hbalock); 5172 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 5173 spin_unlock_irq(&phba->hbalock); 5174 /* 5175 * Last resort will be re-try on the 5176 * the current registered FCF entry. 5177 */ 5178 lpfc_retry_pport_discovery(phba); 5179 } else 5180 /* 5181 * Reset FCF roundrobin bmask for new 5182 * discovery. 5183 */ 5184 lpfc_sli4_clear_fcf_rr_bmask(phba); 5185 } 5186 break; 5187 default: 5188 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5189 "0288 Unknown FCoE event type 0x%x event tag " 5190 "0x%x\n", event_type, acqe_fip->event_tag); 5191 break; 5192 } 5193 } 5194 5195 /** 5196 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 5197 * @phba: pointer to lpfc hba data structure. 5198 * @acqe_link: pointer to the async dcbx completion queue entry. 5199 * 5200 * This routine is to handle the SLI4 asynchronous dcbx event. 5201 **/ 5202 static void 5203 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 5204 struct lpfc_acqe_dcbx *acqe_dcbx) 5205 { 5206 phba->fc_eventTag = acqe_dcbx->event_tag; 5207 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5208 "0290 The SLI4 DCBX asynchronous event is not " 5209 "handled yet\n"); 5210 } 5211 5212 /** 5213 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 5214 * @phba: pointer to lpfc hba data structure. 5215 * @acqe_link: pointer to the async grp5 completion queue entry. 5216 * 5217 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 5218 * is an asynchronous notified of a logical link speed change. The Port 5219 * reports the logical link speed in units of 10Mbps. 5220 **/ 5221 static void 5222 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 5223 struct lpfc_acqe_grp5 *acqe_grp5) 5224 { 5225 uint16_t prev_ll_spd; 5226 5227 phba->fc_eventTag = acqe_grp5->event_tag; 5228 phba->fcoe_eventtag = acqe_grp5->event_tag; 5229 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 5230 phba->sli4_hba.link_state.logical_speed = 5231 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 5232 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5233 "2789 GRP5 Async Event: Updating logical link speed " 5234 "from %dMbps to %dMbps\n", prev_ll_spd, 5235 phba->sli4_hba.link_state.logical_speed); 5236 } 5237 5238 /** 5239 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 5240 * @phba: pointer to lpfc hba data structure. 5241 * 5242 * This routine is invoked by the worker thread to process all the pending 5243 * SLI4 asynchronous events. 5244 **/ 5245 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 5246 { 5247 struct lpfc_cq_event *cq_event; 5248 5249 /* First, declare the async event has been handled */ 5250 spin_lock_irq(&phba->hbalock); 5251 phba->hba_flag &= ~ASYNC_EVENT; 5252 spin_unlock_irq(&phba->hbalock); 5253 /* Now, handle all the async events */ 5254 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 5255 /* Get the first event from the head of the event queue */ 5256 spin_lock_irq(&phba->hbalock); 5257 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 5258 cq_event, struct lpfc_cq_event, list); 5259 spin_unlock_irq(&phba->hbalock); 5260 /* Process the asynchronous event */ 5261 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 5262 case LPFC_TRAILER_CODE_LINK: 5263 lpfc_sli4_async_link_evt(phba, 5264 &cq_event->cqe.acqe_link); 5265 break; 5266 case LPFC_TRAILER_CODE_FCOE: 5267 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 5268 break; 5269 case LPFC_TRAILER_CODE_DCBX: 5270 lpfc_sli4_async_dcbx_evt(phba, 5271 &cq_event->cqe.acqe_dcbx); 5272 break; 5273 case LPFC_TRAILER_CODE_GRP5: 5274 lpfc_sli4_async_grp5_evt(phba, 5275 &cq_event->cqe.acqe_grp5); 5276 break; 5277 case LPFC_TRAILER_CODE_FC: 5278 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 5279 break; 5280 case LPFC_TRAILER_CODE_SLI: 5281 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 5282 break; 5283 default: 5284 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5285 "1804 Invalid asynchrous event code: " 5286 "x%x\n", bf_get(lpfc_trailer_code, 5287 &cq_event->cqe.mcqe_cmpl)); 5288 break; 5289 } 5290 /* Free the completion event processed to the free pool */ 5291 lpfc_sli4_cq_event_release(phba, cq_event); 5292 } 5293 } 5294 5295 /** 5296 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 5297 * @phba: pointer to lpfc hba data structure. 5298 * 5299 * This routine is invoked by the worker thread to process FCF table 5300 * rediscovery pending completion event. 5301 **/ 5302 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 5303 { 5304 int rc; 5305 5306 spin_lock_irq(&phba->hbalock); 5307 /* Clear FCF rediscovery timeout event */ 5308 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 5309 /* Clear driver fast failover FCF record flag */ 5310 phba->fcf.failover_rec.flag = 0; 5311 /* Set state for FCF fast failover */ 5312 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 5313 spin_unlock_irq(&phba->hbalock); 5314 5315 /* Scan FCF table from the first entry to re-discover SAN */ 5316 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5317 "2777 Start post-quiescent FCF table scan\n"); 5318 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 5319 if (rc) 5320 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5321 "2747 Issue FCF scan read FCF mailbox " 5322 "command failed 0x%x\n", rc); 5323 } 5324 5325 /** 5326 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 5327 * @phba: pointer to lpfc hba data structure. 5328 * @dev_grp: The HBA PCI-Device group number. 5329 * 5330 * This routine is invoked to set up the per HBA PCI-Device group function 5331 * API jump table entries. 5332 * 5333 * Return: 0 if success, otherwise -ENODEV 5334 **/ 5335 int 5336 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5337 { 5338 int rc; 5339 5340 /* Set up lpfc PCI-device group */ 5341 phba->pci_dev_grp = dev_grp; 5342 5343 /* The LPFC_PCI_DEV_OC uses SLI4 */ 5344 if (dev_grp == LPFC_PCI_DEV_OC) 5345 phba->sli_rev = LPFC_SLI_REV4; 5346 5347 /* Set up device INIT API function jump table */ 5348 rc = lpfc_init_api_table_setup(phba, dev_grp); 5349 if (rc) 5350 return -ENODEV; 5351 /* Set up SCSI API function jump table */ 5352 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 5353 if (rc) 5354 return -ENODEV; 5355 /* Set up SLI API function jump table */ 5356 rc = lpfc_sli_api_table_setup(phba, dev_grp); 5357 if (rc) 5358 return -ENODEV; 5359 /* Set up MBOX API function jump table */ 5360 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 5361 if (rc) 5362 return -ENODEV; 5363 5364 return 0; 5365 } 5366 5367 /** 5368 * lpfc_log_intr_mode - Log the active interrupt mode 5369 * @phba: pointer to lpfc hba data structure. 5370 * @intr_mode: active interrupt mode adopted. 5371 * 5372 * This routine it invoked to log the currently used active interrupt mode 5373 * to the device. 5374 **/ 5375 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 5376 { 5377 switch (intr_mode) { 5378 case 0: 5379 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5380 "0470 Enable INTx interrupt mode.\n"); 5381 break; 5382 case 1: 5383 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5384 "0481 Enabled MSI interrupt mode.\n"); 5385 break; 5386 case 2: 5387 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5388 "0480 Enabled MSI-X interrupt mode.\n"); 5389 break; 5390 default: 5391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5392 "0482 Illegal interrupt mode.\n"); 5393 break; 5394 } 5395 return; 5396 } 5397 5398 /** 5399 * lpfc_enable_pci_dev - Enable a generic PCI device. 5400 * @phba: pointer to lpfc hba data structure. 5401 * 5402 * This routine is invoked to enable the PCI device that is common to all 5403 * PCI devices. 5404 * 5405 * Return codes 5406 * 0 - successful 5407 * other values - error 5408 **/ 5409 static int 5410 lpfc_enable_pci_dev(struct lpfc_hba *phba) 5411 { 5412 struct pci_dev *pdev; 5413 5414 /* Obtain PCI device reference */ 5415 if (!phba->pcidev) 5416 goto out_error; 5417 else 5418 pdev = phba->pcidev; 5419 /* Enable PCI device */ 5420 if (pci_enable_device_mem(pdev)) 5421 goto out_error; 5422 /* Request PCI resource for the device */ 5423 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME)) 5424 goto out_disable_device; 5425 /* Set up device as PCI master and save state for EEH */ 5426 pci_set_master(pdev); 5427 pci_try_set_mwi(pdev); 5428 pci_save_state(pdev); 5429 5430 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 5431 if (pci_is_pcie(pdev)) 5432 pdev->needs_freset = 1; 5433 5434 return 0; 5435 5436 out_disable_device: 5437 pci_disable_device(pdev); 5438 out_error: 5439 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5440 "1401 Failed to enable pci device\n"); 5441 return -ENODEV; 5442 } 5443 5444 /** 5445 * lpfc_disable_pci_dev - Disable a generic PCI device. 5446 * @phba: pointer to lpfc hba data structure. 5447 * 5448 * This routine is invoked to disable the PCI device that is common to all 5449 * PCI devices. 5450 **/ 5451 static void 5452 lpfc_disable_pci_dev(struct lpfc_hba *phba) 5453 { 5454 struct pci_dev *pdev; 5455 5456 /* Obtain PCI device reference */ 5457 if (!phba->pcidev) 5458 return; 5459 else 5460 pdev = phba->pcidev; 5461 /* Release PCI resource and disable PCI device */ 5462 pci_release_mem_regions(pdev); 5463 pci_disable_device(pdev); 5464 5465 return; 5466 } 5467 5468 /** 5469 * lpfc_reset_hba - Reset a hba 5470 * @phba: pointer to lpfc hba data structure. 5471 * 5472 * This routine is invoked to reset a hba device. It brings the HBA 5473 * offline, performs a board restart, and then brings the board back 5474 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 5475 * on outstanding mailbox commands. 5476 **/ 5477 void 5478 lpfc_reset_hba(struct lpfc_hba *phba) 5479 { 5480 /* If resets are disabled then set error state and return. */ 5481 if (!phba->cfg_enable_hba_reset) { 5482 phba->link_state = LPFC_HBA_ERROR; 5483 return; 5484 } 5485 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) 5486 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 5487 else 5488 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 5489 lpfc_offline(phba); 5490 lpfc_sli_brdrestart(phba); 5491 lpfc_online(phba); 5492 lpfc_unblock_mgmt_io(phba); 5493 } 5494 5495 /** 5496 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 5497 * @phba: pointer to lpfc hba data structure. 5498 * 5499 * This function enables the PCI SR-IOV virtual functions to a physical 5500 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5501 * enable the number of virtual functions to the physical function. As 5502 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5503 * API call does not considered as an error condition for most of the device. 5504 **/ 5505 uint16_t 5506 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 5507 { 5508 struct pci_dev *pdev = phba->pcidev; 5509 uint16_t nr_virtfn; 5510 int pos; 5511 5512 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 5513 if (pos == 0) 5514 return 0; 5515 5516 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 5517 return nr_virtfn; 5518 } 5519 5520 /** 5521 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 5522 * @phba: pointer to lpfc hba data structure. 5523 * @nr_vfn: number of virtual functions to be enabled. 5524 * 5525 * This function enables the PCI SR-IOV virtual functions to a physical 5526 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5527 * enable the number of virtual functions to the physical function. As 5528 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5529 * API call does not considered as an error condition for most of the device. 5530 **/ 5531 int 5532 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 5533 { 5534 struct pci_dev *pdev = phba->pcidev; 5535 uint16_t max_nr_vfn; 5536 int rc; 5537 5538 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 5539 if (nr_vfn > max_nr_vfn) { 5540 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5541 "3057 Requested vfs (%d) greater than " 5542 "supported vfs (%d)", nr_vfn, max_nr_vfn); 5543 return -EINVAL; 5544 } 5545 5546 rc = pci_enable_sriov(pdev, nr_vfn); 5547 if (rc) { 5548 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5549 "2806 Failed to enable sriov on this device " 5550 "with vfn number nr_vf:%d, rc:%d\n", 5551 nr_vfn, rc); 5552 } else 5553 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5554 "2807 Successful enable sriov on this device " 5555 "with vfn number nr_vf:%d\n", nr_vfn); 5556 return rc; 5557 } 5558 5559 /** 5560 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5561 * @phba: pointer to lpfc hba data structure. 5562 * 5563 * This routine is invoked to set up the driver internal resources before the 5564 * device specific resource setup to support the HBA device it attached to. 5565 * 5566 * Return codes 5567 * 0 - successful 5568 * other values - error 5569 **/ 5570 static int 5571 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5572 { 5573 struct lpfc_sli *psli = &phba->sli; 5574 5575 /* 5576 * Driver resources common to all SLI revisions 5577 */ 5578 atomic_set(&phba->fast_event_count, 0); 5579 spin_lock_init(&phba->hbalock); 5580 5581 /* Initialize ndlp management spinlock */ 5582 spin_lock_init(&phba->ndlp_lock); 5583 5584 INIT_LIST_HEAD(&phba->port_list); 5585 INIT_LIST_HEAD(&phba->work_list); 5586 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5587 5588 /* Initialize the wait queue head for the kernel thread */ 5589 init_waitqueue_head(&phba->work_waitq); 5590 5591 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5592 "1403 Protocols supported %s %s %s\n", 5593 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ? 5594 "SCSI" : " "), 5595 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ? 5596 "NVME" : " "), 5597 (phba->nvmet_support ? "NVMET" : " ")); 5598 5599 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5600 /* Initialize the scsi buffer list used by driver for scsi IO */ 5601 spin_lock_init(&phba->scsi_buf_list_get_lock); 5602 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); 5603 spin_lock_init(&phba->scsi_buf_list_put_lock); 5604 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 5605 } 5606 5607 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) && 5608 (phba->nvmet_support == 0)) { 5609 /* Initialize the NVME buffer list used by driver for NVME IO */ 5610 spin_lock_init(&phba->nvme_buf_list_get_lock); 5611 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get); 5612 spin_lock_init(&phba->nvme_buf_list_put_lock); 5613 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 5614 } 5615 5616 /* Initialize the fabric iocb list */ 5617 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5618 5619 /* Initialize list to save ELS buffers */ 5620 INIT_LIST_HEAD(&phba->elsbuf); 5621 5622 /* Initialize FCF connection rec list */ 5623 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5624 5625 /* Initialize OAS configuration list */ 5626 spin_lock_init(&phba->devicelock); 5627 INIT_LIST_HEAD(&phba->luns); 5628 5629 /* MBOX heartbeat timer */ 5630 timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0); 5631 /* Fabric block timer */ 5632 timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0); 5633 /* EA polling mode timer */ 5634 timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0); 5635 /* Heartbeat timer */ 5636 timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0); 5637 5638 return 0; 5639 } 5640 5641 /** 5642 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev 5643 * @phba: pointer to lpfc hba data structure. 5644 * 5645 * This routine is invoked to set up the driver internal resources specific to 5646 * support the SLI-3 HBA device it attached to. 5647 * 5648 * Return codes 5649 * 0 - successful 5650 * other values - error 5651 **/ 5652 static int 5653 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 5654 { 5655 int rc; 5656 5657 /* 5658 * Initialize timers used by driver 5659 */ 5660 5661 /* FCP polling mode timer */ 5662 timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0); 5663 5664 /* Host attention work mask setup */ 5665 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 5666 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 5667 5668 /* Get all the module params for configuring this host */ 5669 lpfc_get_cfgparam(phba); 5670 /* Set up phase-1 common device driver resources */ 5671 5672 rc = lpfc_setup_driver_resource_phase1(phba); 5673 if (rc) 5674 return -ENODEV; 5675 5676 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 5677 phba->menlo_flag |= HBA_MENLO_SUPPORT; 5678 /* check for menlo minimum sg count */ 5679 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 5680 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 5681 } 5682 5683 if (!phba->sli.sli3_ring) 5684 phba->sli.sli3_ring = kzalloc(LPFC_SLI3_MAX_RING * 5685 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 5686 if (!phba->sli.sli3_ring) 5687 return -ENOMEM; 5688 5689 /* 5690 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 5691 * used to create the sg_dma_buf_pool must be dynamically calculated. 5692 */ 5693 5694 /* Initialize the host templates the configured values. */ 5695 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5696 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; 5697 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5698 5699 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ 5700 if (phba->cfg_enable_bg) { 5701 /* 5702 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 5703 * the FCP rsp, and a BDE for each. Sice we have no control 5704 * over how many protection data segments the SCSI Layer 5705 * will hand us (ie: there could be one for every block 5706 * in the IO), we just allocate enough BDEs to accomidate 5707 * our max amount and we need to limit lpfc_sg_seg_cnt to 5708 * minimize the risk of running out. 5709 */ 5710 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5711 sizeof(struct fcp_rsp) + 5712 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64)); 5713 5714 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF) 5715 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF; 5716 5717 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */ 5718 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT; 5719 } else { 5720 /* 5721 * The scsi_buf for a regular I/O will hold the FCP cmnd, 5722 * the FCP rsp, a BDE for each, and a BDE for up to 5723 * cfg_sg_seg_cnt data segments. 5724 */ 5725 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5726 sizeof(struct fcp_rsp) + 5727 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 5728 5729 /* Total BDEs in BPL for scsi_sg_list */ 5730 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5731 } 5732 5733 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5734 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n", 5735 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5736 phba->cfg_total_seg_cnt); 5737 5738 phba->max_vpi = LPFC_MAX_VPI; 5739 /* This will be set to correct value after config_port mbox */ 5740 phba->max_vports = 0; 5741 5742 /* 5743 * Initialize the SLI Layer to run with lpfc HBAs. 5744 */ 5745 lpfc_sli_setup(phba); 5746 lpfc_sli_queue_init(phba); 5747 5748 /* Allocate device driver memory */ 5749 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 5750 return -ENOMEM; 5751 5752 /* 5753 * Enable sr-iov virtual functions if supported and configured 5754 * through the module parameter. 5755 */ 5756 if (phba->cfg_sriov_nr_virtfn > 0) { 5757 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5758 phba->cfg_sriov_nr_virtfn); 5759 if (rc) { 5760 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5761 "2808 Requested number of SR-IOV " 5762 "virtual functions (%d) is not " 5763 "supported\n", 5764 phba->cfg_sriov_nr_virtfn); 5765 phba->cfg_sriov_nr_virtfn = 0; 5766 } 5767 } 5768 5769 return 0; 5770 } 5771 5772 /** 5773 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 5774 * @phba: pointer to lpfc hba data structure. 5775 * 5776 * This routine is invoked to unset the driver internal resources set up 5777 * specific for supporting the SLI-3 HBA device it attached to. 5778 **/ 5779 static void 5780 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 5781 { 5782 /* Free device driver memory allocated */ 5783 lpfc_mem_free_all(phba); 5784 5785 return; 5786 } 5787 5788 /** 5789 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 5790 * @phba: pointer to lpfc hba data structure. 5791 * 5792 * This routine is invoked to set up the driver internal resources specific to 5793 * support the SLI-4 HBA device it attached to. 5794 * 5795 * Return codes 5796 * 0 - successful 5797 * other values - error 5798 **/ 5799 static int 5800 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 5801 { 5802 LPFC_MBOXQ_t *mboxq; 5803 MAILBOX_t *mb; 5804 int rc, i, max_buf_size; 5805 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 5806 struct lpfc_mqe *mqe; 5807 int longs; 5808 int fof_vectors = 0; 5809 uint64_t wwn; 5810 5811 phba->sli4_hba.num_online_cpu = num_online_cpus(); 5812 phba->sli4_hba.num_present_cpu = lpfc_present_cpu; 5813 phba->sli4_hba.curr_disp_cpu = 0; 5814 5815 /* Get all the module params for configuring this host */ 5816 lpfc_get_cfgparam(phba); 5817 5818 /* Set up phase-1 common device driver resources */ 5819 rc = lpfc_setup_driver_resource_phase1(phba); 5820 if (rc) 5821 return -ENODEV; 5822 5823 /* Before proceed, wait for POST done and device ready */ 5824 rc = lpfc_sli4_post_status_check(phba); 5825 if (rc) 5826 return -ENODEV; 5827 5828 /* 5829 * Initialize timers used by driver 5830 */ 5831 5832 timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0); 5833 5834 /* FCF rediscover timer */ 5835 timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0); 5836 5837 /* 5838 * Control structure for handling external multi-buffer mailbox 5839 * command pass-through. 5840 */ 5841 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 5842 sizeof(struct lpfc_mbox_ext_buf_ctx)); 5843 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 5844 5845 phba->max_vpi = LPFC_MAX_VPI; 5846 5847 /* This will be set to correct value after the read_config mbox */ 5848 phba->max_vports = 0; 5849 5850 /* Program the default value of vlan_id and fc_map */ 5851 phba->valid_vlan = 0; 5852 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 5853 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 5854 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 5855 5856 /* 5857 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 5858 * we will associate a new ring, for each EQ/CQ/WQ tuple. 5859 * The WQ create will allocate the ring. 5860 */ 5861 5862 /* 5863 * It doesn't matter what family our adapter is in, we are 5864 * limited to 2 Pages, 512 SGEs, for our SGL. 5865 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp 5866 */ 5867 max_buf_size = (2 * SLI4_PAGE_SIZE); 5868 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2) 5869 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2; 5870 5871 /* 5872 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size 5873 * used to create the sg_dma_buf_pool must be calculated. 5874 */ 5875 if (phba->cfg_enable_bg) { 5876 /* 5877 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd, 5878 * the FCP rsp, and a SGE. Sice we have no control 5879 * over how many protection segments the SCSI Layer 5880 * will hand us (ie: there could be one for every block 5881 * in the IO), just allocate enough SGEs to accomidate 5882 * our max amount and we need to limit lpfc_sg_seg_cnt 5883 * to minimize the risk of running out. 5884 */ 5885 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5886 sizeof(struct fcp_rsp) + max_buf_size; 5887 5888 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ 5889 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; 5890 5891 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF) 5892 phba->cfg_sg_seg_cnt = 5893 LPFC_MAX_SG_SLI4_SEG_CNT_DIF; 5894 } else { 5895 /* 5896 * The scsi_buf for a regular I/O holds the FCP cmnd, 5897 * the FCP rsp, a SGE for each, and a SGE for up to 5898 * cfg_sg_seg_cnt data segments. 5899 */ 5900 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5901 sizeof(struct fcp_rsp) + 5902 ((phba->cfg_sg_seg_cnt + 2) * 5903 sizeof(struct sli4_sge)); 5904 5905 /* Total SGEs for scsi_sg_list */ 5906 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5907 5908 /* 5909 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only 5910 * need to post 1 page for the SGL. 5911 */ 5912 } 5913 5914 /* Initialize the host templates with the updated values. */ 5915 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5916 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5917 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; 5918 5919 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) 5920 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; 5921 else 5922 phba->cfg_sg_dma_buf_size = 5923 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); 5924 5925 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5926 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n", 5927 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5928 phba->cfg_total_seg_cnt); 5929 5930 /* Initialize buffer queue management fields */ 5931 INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list); 5932 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 5933 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 5934 5935 /* 5936 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 5937 */ 5938 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5939 /* Initialize the Abort scsi buffer list used by driver */ 5940 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 5941 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 5942 } 5943 5944 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 5945 /* Initialize the Abort nvme buffer list used by driver */ 5946 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock); 5947 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 5948 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 5949 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list); 5950 5951 /* Fast-path XRI aborted CQ Event work queue list */ 5952 INIT_LIST_HEAD(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue); 5953 } 5954 5955 /* This abort list used by worker thread */ 5956 spin_lock_init(&phba->sli4_hba.sgl_list_lock); 5957 spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock); 5958 5959 /* 5960 * Initialize driver internal slow-path work queues 5961 */ 5962 5963 /* Driver internel slow-path CQ Event pool */ 5964 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 5965 /* Response IOCB work queue list */ 5966 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 5967 /* Asynchronous event CQ Event work queue list */ 5968 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 5969 /* Fast-path XRI aborted CQ Event work queue list */ 5970 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 5971 /* Slow-path XRI aborted CQ Event work queue list */ 5972 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 5973 /* Receive queue CQ Event work queue list */ 5974 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 5975 5976 /* Initialize extent block lists. */ 5977 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 5978 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 5979 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 5980 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 5981 5982 /* Initialize mboxq lists. If the early init routines fail 5983 * these lists need to be correctly initialized. 5984 */ 5985 INIT_LIST_HEAD(&phba->sli.mboxq); 5986 INIT_LIST_HEAD(&phba->sli.mboxq_cmpl); 5987 5988 /* initialize optic_state to 0xFF */ 5989 phba->sli4_hba.lnk_info.optic_state = 0xff; 5990 5991 /* Allocate device driver memory */ 5992 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 5993 if (rc) 5994 return -ENOMEM; 5995 5996 /* IF Type 2 ports get initialized now. */ 5997 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5998 LPFC_SLI_INTF_IF_TYPE_2) { 5999 rc = lpfc_pci_function_reset(phba); 6000 if (unlikely(rc)) { 6001 rc = -ENODEV; 6002 goto out_free_mem; 6003 } 6004 phba->temp_sensor_support = 1; 6005 } 6006 6007 /* Create the bootstrap mailbox command */ 6008 rc = lpfc_create_bootstrap_mbox(phba); 6009 if (unlikely(rc)) 6010 goto out_free_mem; 6011 6012 /* Set up the host's endian order with the device. */ 6013 rc = lpfc_setup_endian_order(phba); 6014 if (unlikely(rc)) 6015 goto out_free_bsmbx; 6016 6017 /* Set up the hba's configuration parameters. */ 6018 rc = lpfc_sli4_read_config(phba); 6019 if (unlikely(rc)) 6020 goto out_free_bsmbx; 6021 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba); 6022 if (unlikely(rc)) 6023 goto out_free_bsmbx; 6024 6025 /* IF Type 0 ports get initialized now. */ 6026 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 6027 LPFC_SLI_INTF_IF_TYPE_0) { 6028 rc = lpfc_pci_function_reset(phba); 6029 if (unlikely(rc)) 6030 goto out_free_bsmbx; 6031 } 6032 6033 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6034 GFP_KERNEL); 6035 if (!mboxq) { 6036 rc = -ENOMEM; 6037 goto out_free_bsmbx; 6038 } 6039 6040 /* Check for NVMET being configured */ 6041 phba->nvmet_support = 0; 6042 if (lpfc_enable_nvmet_cnt) { 6043 6044 /* First get WWN of HBA instance */ 6045 lpfc_read_nv(phba, mboxq); 6046 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6047 if (rc != MBX_SUCCESS) { 6048 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6049 "6016 Mailbox failed , mbxCmd x%x " 6050 "READ_NV, mbxStatus x%x\n", 6051 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 6052 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 6053 mempool_free(mboxq, phba->mbox_mem_pool); 6054 rc = -EIO; 6055 goto out_free_bsmbx; 6056 } 6057 mb = &mboxq->u.mb; 6058 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename, 6059 sizeof(uint64_t)); 6060 wwn = cpu_to_be64(wwn); 6061 phba->sli4_hba.wwnn.u.name = wwn; 6062 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, 6063 sizeof(uint64_t)); 6064 /* wwn is WWPN of HBA instance */ 6065 wwn = cpu_to_be64(wwn); 6066 phba->sli4_hba.wwpn.u.name = wwn; 6067 6068 /* Check to see if it matches any module parameter */ 6069 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) { 6070 if (wwn == lpfc_enable_nvmet[i]) { 6071 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC)) 6072 if (lpfc_nvmet_mem_alloc(phba)) 6073 break; 6074 6075 phba->nvmet_support = 1; /* a match */ 6076 6077 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6078 "6017 NVME Target %016llx\n", 6079 wwn); 6080 #else 6081 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6082 "6021 Can't enable NVME Target." 6083 " NVME_TARGET_FC infrastructure" 6084 " is not in kernel\n"); 6085 #endif 6086 break; 6087 } 6088 } 6089 } 6090 6091 lpfc_nvme_mod_param_dep(phba); 6092 6093 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 6094 lpfc_supported_pages(mboxq); 6095 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6096 if (!rc) { 6097 mqe = &mboxq->u.mqe; 6098 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 6099 LPFC_MAX_SUPPORTED_PAGES); 6100 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 6101 switch (pn_page[i]) { 6102 case LPFC_SLI4_PARAMETERS: 6103 phba->sli4_hba.pc_sli4_params.supported = 1; 6104 break; 6105 default: 6106 break; 6107 } 6108 } 6109 /* Read the port's SLI4 Parameters capabilities if supported. */ 6110 if (phba->sli4_hba.pc_sli4_params.supported) 6111 rc = lpfc_pc_sli4_params_get(phba, mboxq); 6112 if (rc) { 6113 mempool_free(mboxq, phba->mbox_mem_pool); 6114 rc = -EIO; 6115 goto out_free_bsmbx; 6116 } 6117 } 6118 6119 /* 6120 * Get sli4 parameters that override parameters from Port capabilities. 6121 * If this call fails, it isn't critical unless the SLI4 parameters come 6122 * back in conflict. 6123 */ 6124 rc = lpfc_get_sli4_parameters(phba, mboxq); 6125 if (rc) { 6126 if (phba->sli4_hba.extents_in_use && 6127 phba->sli4_hba.rpi_hdrs_in_use) { 6128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6129 "2999 Unsupported SLI4 Parameters " 6130 "Extents and RPI headers enabled.\n"); 6131 } 6132 mempool_free(mboxq, phba->mbox_mem_pool); 6133 rc = -EIO; 6134 goto out_free_bsmbx; 6135 } 6136 6137 mempool_free(mboxq, phba->mbox_mem_pool); 6138 6139 /* Verify OAS is supported */ 6140 lpfc_sli4_oas_verify(phba); 6141 if (phba->cfg_fof) 6142 fof_vectors = 1; 6143 6144 /* Verify all the SLI4 queues */ 6145 rc = lpfc_sli4_queue_verify(phba); 6146 if (rc) 6147 goto out_free_bsmbx; 6148 6149 /* Create driver internal CQE event pool */ 6150 rc = lpfc_sli4_cq_event_pool_create(phba); 6151 if (rc) 6152 goto out_free_bsmbx; 6153 6154 /* Initialize sgl lists per host */ 6155 lpfc_init_sgl_list(phba); 6156 6157 /* Allocate and initialize active sgl array */ 6158 rc = lpfc_init_active_sgl_array(phba); 6159 if (rc) { 6160 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6161 "1430 Failed to initialize sgl list.\n"); 6162 goto out_destroy_cq_event_pool; 6163 } 6164 rc = lpfc_sli4_init_rpi_hdrs(phba); 6165 if (rc) { 6166 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6167 "1432 Failed to initialize rpi headers.\n"); 6168 goto out_free_active_sgl; 6169 } 6170 6171 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 6172 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 6173 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 6174 GFP_KERNEL); 6175 if (!phba->fcf.fcf_rr_bmask) { 6176 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6177 "2759 Failed allocate memory for FCF round " 6178 "robin failover bmask\n"); 6179 rc = -ENOMEM; 6180 goto out_remove_rpi_hdrs; 6181 } 6182 6183 phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs, 6184 sizeof(struct lpfc_hba_eq_hdl), 6185 GFP_KERNEL); 6186 if (!phba->sli4_hba.hba_eq_hdl) { 6187 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6188 "2572 Failed allocate memory for " 6189 "fast-path per-EQ handle array\n"); 6190 rc = -ENOMEM; 6191 goto out_free_fcf_rr_bmask; 6192 } 6193 6194 phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu, 6195 sizeof(struct lpfc_vector_map_info), 6196 GFP_KERNEL); 6197 if (!phba->sli4_hba.cpu_map) { 6198 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6199 "3327 Failed allocate memory for msi-x " 6200 "interrupt vector mapping\n"); 6201 rc = -ENOMEM; 6202 goto out_free_hba_eq_hdl; 6203 } 6204 if (lpfc_used_cpu == NULL) { 6205 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t), 6206 GFP_KERNEL); 6207 if (!lpfc_used_cpu) { 6208 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6209 "3335 Failed allocate memory for msi-x " 6210 "interrupt vector mapping\n"); 6211 kfree(phba->sli4_hba.cpu_map); 6212 rc = -ENOMEM; 6213 goto out_free_hba_eq_hdl; 6214 } 6215 for (i = 0; i < lpfc_present_cpu; i++) 6216 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY; 6217 } 6218 6219 /* 6220 * Enable sr-iov virtual functions if supported and configured 6221 * through the module parameter. 6222 */ 6223 if (phba->cfg_sriov_nr_virtfn > 0) { 6224 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 6225 phba->cfg_sriov_nr_virtfn); 6226 if (rc) { 6227 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6228 "3020 Requested number of SR-IOV " 6229 "virtual functions (%d) is not " 6230 "supported\n", 6231 phba->cfg_sriov_nr_virtfn); 6232 phba->cfg_sriov_nr_virtfn = 0; 6233 } 6234 } 6235 6236 return 0; 6237 6238 out_free_hba_eq_hdl: 6239 kfree(phba->sli4_hba.hba_eq_hdl); 6240 out_free_fcf_rr_bmask: 6241 kfree(phba->fcf.fcf_rr_bmask); 6242 out_remove_rpi_hdrs: 6243 lpfc_sli4_remove_rpi_hdrs(phba); 6244 out_free_active_sgl: 6245 lpfc_free_active_sgl(phba); 6246 out_destroy_cq_event_pool: 6247 lpfc_sli4_cq_event_pool_destroy(phba); 6248 out_free_bsmbx: 6249 lpfc_destroy_bootstrap_mbox(phba); 6250 out_free_mem: 6251 lpfc_mem_free(phba); 6252 return rc; 6253 } 6254 6255 /** 6256 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 6257 * @phba: pointer to lpfc hba data structure. 6258 * 6259 * This routine is invoked to unset the driver internal resources set up 6260 * specific for supporting the SLI-4 HBA device it attached to. 6261 **/ 6262 static void 6263 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 6264 { 6265 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6266 6267 /* Free memory allocated for msi-x interrupt vector to CPU mapping */ 6268 kfree(phba->sli4_hba.cpu_map); 6269 phba->sli4_hba.num_present_cpu = 0; 6270 phba->sli4_hba.num_online_cpu = 0; 6271 phba->sli4_hba.curr_disp_cpu = 0; 6272 6273 /* Free memory allocated for fast-path work queue handles */ 6274 kfree(phba->sli4_hba.hba_eq_hdl); 6275 6276 /* Free the allocated rpi headers. */ 6277 lpfc_sli4_remove_rpi_hdrs(phba); 6278 lpfc_sli4_remove_rpis(phba); 6279 6280 /* Free eligible FCF index bmask */ 6281 kfree(phba->fcf.fcf_rr_bmask); 6282 6283 /* Free the ELS sgl list */ 6284 lpfc_free_active_sgl(phba); 6285 lpfc_free_els_sgl_list(phba); 6286 lpfc_free_nvmet_sgl_list(phba); 6287 6288 /* Free the completion queue EQ event pool */ 6289 lpfc_sli4_cq_event_release_all(phba); 6290 lpfc_sli4_cq_event_pool_destroy(phba); 6291 6292 /* Release resource identifiers. */ 6293 lpfc_sli4_dealloc_resource_identifiers(phba); 6294 6295 /* Free the bsmbx region. */ 6296 lpfc_destroy_bootstrap_mbox(phba); 6297 6298 /* Free the SLI Layer memory with SLI4 HBAs */ 6299 lpfc_mem_free_all(phba); 6300 6301 /* Free the current connect table */ 6302 list_for_each_entry_safe(conn_entry, next_conn_entry, 6303 &phba->fcf_conn_rec_list, list) { 6304 list_del_init(&conn_entry->list); 6305 kfree(conn_entry); 6306 } 6307 6308 return; 6309 } 6310 6311 /** 6312 * lpfc_init_api_table_setup - Set up init api function jump table 6313 * @phba: The hba struct for which this call is being executed. 6314 * @dev_grp: The HBA PCI-Device group number. 6315 * 6316 * This routine sets up the device INIT interface API function jump table 6317 * in @phba struct. 6318 * 6319 * Returns: 0 - success, -ENODEV - failure. 6320 **/ 6321 int 6322 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 6323 { 6324 phba->lpfc_hba_init_link = lpfc_hba_init_link; 6325 phba->lpfc_hba_down_link = lpfc_hba_down_link; 6326 phba->lpfc_selective_reset = lpfc_selective_reset; 6327 switch (dev_grp) { 6328 case LPFC_PCI_DEV_LP: 6329 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 6330 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 6331 phba->lpfc_stop_port = lpfc_stop_port_s3; 6332 break; 6333 case LPFC_PCI_DEV_OC: 6334 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 6335 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 6336 phba->lpfc_stop_port = lpfc_stop_port_s4; 6337 break; 6338 default: 6339 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6340 "1431 Invalid HBA PCI-device group: 0x%x\n", 6341 dev_grp); 6342 return -ENODEV; 6343 break; 6344 } 6345 return 0; 6346 } 6347 6348 /** 6349 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 6350 * @phba: pointer to lpfc hba data structure. 6351 * 6352 * This routine is invoked to set up the driver internal resources after the 6353 * device specific resource setup to support the HBA device it attached to. 6354 * 6355 * Return codes 6356 * 0 - successful 6357 * other values - error 6358 **/ 6359 static int 6360 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 6361 { 6362 int error; 6363 6364 /* Startup the kernel thread for this host adapter. */ 6365 phba->worker_thread = kthread_run(lpfc_do_work, phba, 6366 "lpfc_worker_%d", phba->brd_no); 6367 if (IS_ERR(phba->worker_thread)) { 6368 error = PTR_ERR(phba->worker_thread); 6369 return error; 6370 } 6371 6372 /* workqueue for deferred irq use */ 6373 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0); 6374 6375 return 0; 6376 } 6377 6378 /** 6379 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 6380 * @phba: pointer to lpfc hba data structure. 6381 * 6382 * This routine is invoked to unset the driver internal resources set up after 6383 * the device specific resource setup for supporting the HBA device it 6384 * attached to. 6385 **/ 6386 static void 6387 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 6388 { 6389 if (phba->wq) { 6390 flush_workqueue(phba->wq); 6391 destroy_workqueue(phba->wq); 6392 phba->wq = NULL; 6393 } 6394 6395 /* Stop kernel worker thread */ 6396 kthread_stop(phba->worker_thread); 6397 } 6398 6399 /** 6400 * lpfc_free_iocb_list - Free iocb list. 6401 * @phba: pointer to lpfc hba data structure. 6402 * 6403 * This routine is invoked to free the driver's IOCB list and memory. 6404 **/ 6405 void 6406 lpfc_free_iocb_list(struct lpfc_hba *phba) 6407 { 6408 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 6409 6410 spin_lock_irq(&phba->hbalock); 6411 list_for_each_entry_safe(iocbq_entry, iocbq_next, 6412 &phba->lpfc_iocb_list, list) { 6413 list_del(&iocbq_entry->list); 6414 kfree(iocbq_entry); 6415 phba->total_iocbq_bufs--; 6416 } 6417 spin_unlock_irq(&phba->hbalock); 6418 6419 return; 6420 } 6421 6422 /** 6423 * lpfc_init_iocb_list - Allocate and initialize iocb list. 6424 * @phba: pointer to lpfc hba data structure. 6425 * 6426 * This routine is invoked to allocate and initizlize the driver's IOCB 6427 * list and set up the IOCB tag array accordingly. 6428 * 6429 * Return codes 6430 * 0 - successful 6431 * other values - error 6432 **/ 6433 int 6434 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 6435 { 6436 struct lpfc_iocbq *iocbq_entry = NULL; 6437 uint16_t iotag; 6438 int i; 6439 6440 /* Initialize and populate the iocb list per host. */ 6441 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 6442 for (i = 0; i < iocb_count; i++) { 6443 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 6444 if (iocbq_entry == NULL) { 6445 printk(KERN_ERR "%s: only allocated %d iocbs of " 6446 "expected %d count. Unloading driver.\n", 6447 __func__, i, LPFC_IOCB_LIST_CNT); 6448 goto out_free_iocbq; 6449 } 6450 6451 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 6452 if (iotag == 0) { 6453 kfree(iocbq_entry); 6454 printk(KERN_ERR "%s: failed to allocate IOTAG. " 6455 "Unloading driver.\n", __func__); 6456 goto out_free_iocbq; 6457 } 6458 iocbq_entry->sli4_lxritag = NO_XRI; 6459 iocbq_entry->sli4_xritag = NO_XRI; 6460 6461 spin_lock_irq(&phba->hbalock); 6462 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 6463 phba->total_iocbq_bufs++; 6464 spin_unlock_irq(&phba->hbalock); 6465 } 6466 6467 return 0; 6468 6469 out_free_iocbq: 6470 lpfc_free_iocb_list(phba); 6471 6472 return -ENOMEM; 6473 } 6474 6475 /** 6476 * lpfc_free_sgl_list - Free a given sgl list. 6477 * @phba: pointer to lpfc hba data structure. 6478 * @sglq_list: pointer to the head of sgl list. 6479 * 6480 * This routine is invoked to free a give sgl list and memory. 6481 **/ 6482 void 6483 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 6484 { 6485 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6486 6487 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 6488 list_del(&sglq_entry->list); 6489 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 6490 kfree(sglq_entry); 6491 } 6492 } 6493 6494 /** 6495 * lpfc_free_els_sgl_list - Free els sgl list. 6496 * @phba: pointer to lpfc hba data structure. 6497 * 6498 * This routine is invoked to free the driver's els sgl list and memory. 6499 **/ 6500 static void 6501 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 6502 { 6503 LIST_HEAD(sglq_list); 6504 6505 /* Retrieve all els sgls from driver list */ 6506 spin_lock_irq(&phba->hbalock); 6507 spin_lock(&phba->sli4_hba.sgl_list_lock); 6508 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list); 6509 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6510 spin_unlock_irq(&phba->hbalock); 6511 6512 /* Now free the sgl list */ 6513 lpfc_free_sgl_list(phba, &sglq_list); 6514 } 6515 6516 /** 6517 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list. 6518 * @phba: pointer to lpfc hba data structure. 6519 * 6520 * This routine is invoked to free the driver's nvmet sgl list and memory. 6521 **/ 6522 static void 6523 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba) 6524 { 6525 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6526 LIST_HEAD(sglq_list); 6527 6528 /* Retrieve all nvmet sgls from driver list */ 6529 spin_lock_irq(&phba->hbalock); 6530 spin_lock(&phba->sli4_hba.sgl_list_lock); 6531 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list); 6532 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6533 spin_unlock_irq(&phba->hbalock); 6534 6535 /* Now free the sgl list */ 6536 list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) { 6537 list_del(&sglq_entry->list); 6538 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys); 6539 kfree(sglq_entry); 6540 } 6541 6542 /* Update the nvmet_xri_cnt to reflect no current sgls. 6543 * The next initialization cycle sets the count and allocates 6544 * the sgls over again. 6545 */ 6546 phba->sli4_hba.nvmet_xri_cnt = 0; 6547 } 6548 6549 /** 6550 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 6551 * @phba: pointer to lpfc hba data structure. 6552 * 6553 * This routine is invoked to allocate the driver's active sgl memory. 6554 * This array will hold the sglq_entry's for active IOs. 6555 **/ 6556 static int 6557 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 6558 { 6559 int size; 6560 size = sizeof(struct lpfc_sglq *); 6561 size *= phba->sli4_hba.max_cfg_param.max_xri; 6562 6563 phba->sli4_hba.lpfc_sglq_active_list = 6564 kzalloc(size, GFP_KERNEL); 6565 if (!phba->sli4_hba.lpfc_sglq_active_list) 6566 return -ENOMEM; 6567 return 0; 6568 } 6569 6570 /** 6571 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 6572 * @phba: pointer to lpfc hba data structure. 6573 * 6574 * This routine is invoked to walk through the array of active sglq entries 6575 * and free all of the resources. 6576 * This is just a place holder for now. 6577 **/ 6578 static void 6579 lpfc_free_active_sgl(struct lpfc_hba *phba) 6580 { 6581 kfree(phba->sli4_hba.lpfc_sglq_active_list); 6582 } 6583 6584 /** 6585 * lpfc_init_sgl_list - Allocate and initialize sgl list. 6586 * @phba: pointer to lpfc hba data structure. 6587 * 6588 * This routine is invoked to allocate and initizlize the driver's sgl 6589 * list and set up the sgl xritag tag array accordingly. 6590 * 6591 **/ 6592 static void 6593 lpfc_init_sgl_list(struct lpfc_hba *phba) 6594 { 6595 /* Initialize and populate the sglq list per host/VF. */ 6596 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list); 6597 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 6598 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list); 6599 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 6600 6601 /* els xri-sgl book keeping */ 6602 phba->sli4_hba.els_xri_cnt = 0; 6603 6604 /* scsi xri-buffer book keeping */ 6605 phba->sli4_hba.scsi_xri_cnt = 0; 6606 6607 /* nvme xri-buffer book keeping */ 6608 phba->sli4_hba.nvme_xri_cnt = 0; 6609 } 6610 6611 /** 6612 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 6613 * @phba: pointer to lpfc hba data structure. 6614 * 6615 * This routine is invoked to post rpi header templates to the 6616 * port for those SLI4 ports that do not support extents. This routine 6617 * posts a PAGE_SIZE memory region to the port to hold up to 6618 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 6619 * and should be called only when interrupts are disabled. 6620 * 6621 * Return codes 6622 * 0 - successful 6623 * -ERROR - otherwise. 6624 **/ 6625 int 6626 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 6627 { 6628 int rc = 0; 6629 struct lpfc_rpi_hdr *rpi_hdr; 6630 6631 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 6632 if (!phba->sli4_hba.rpi_hdrs_in_use) 6633 return rc; 6634 if (phba->sli4_hba.extents_in_use) 6635 return -EIO; 6636 6637 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 6638 if (!rpi_hdr) { 6639 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 6640 "0391 Error during rpi post operation\n"); 6641 lpfc_sli4_remove_rpis(phba); 6642 rc = -ENODEV; 6643 } 6644 6645 return rc; 6646 } 6647 6648 /** 6649 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 6650 * @phba: pointer to lpfc hba data structure. 6651 * 6652 * This routine is invoked to allocate a single 4KB memory region to 6653 * support rpis and stores them in the phba. This single region 6654 * provides support for up to 64 rpis. The region is used globally 6655 * by the device. 6656 * 6657 * Returns: 6658 * A valid rpi hdr on success. 6659 * A NULL pointer on any failure. 6660 **/ 6661 struct lpfc_rpi_hdr * 6662 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 6663 { 6664 uint16_t rpi_limit, curr_rpi_range; 6665 struct lpfc_dmabuf *dmabuf; 6666 struct lpfc_rpi_hdr *rpi_hdr; 6667 6668 /* 6669 * If the SLI4 port supports extents, posting the rpi header isn't 6670 * required. Set the expected maximum count and let the actual value 6671 * get set when extents are fully allocated. 6672 */ 6673 if (!phba->sli4_hba.rpi_hdrs_in_use) 6674 return NULL; 6675 if (phba->sli4_hba.extents_in_use) 6676 return NULL; 6677 6678 /* The limit on the logical index is just the max_rpi count. */ 6679 rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi; 6680 6681 spin_lock_irq(&phba->hbalock); 6682 /* 6683 * Establish the starting RPI in this header block. The starting 6684 * rpi is normalized to a zero base because the physical rpi is 6685 * port based. 6686 */ 6687 curr_rpi_range = phba->sli4_hba.next_rpi; 6688 spin_unlock_irq(&phba->hbalock); 6689 6690 /* Reached full RPI range */ 6691 if (curr_rpi_range == rpi_limit) 6692 return NULL; 6693 6694 /* 6695 * First allocate the protocol header region for the port. The 6696 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 6697 */ 6698 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6699 if (!dmabuf) 6700 return NULL; 6701 6702 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, 6703 LPFC_HDR_TEMPLATE_SIZE, 6704 &dmabuf->phys, GFP_KERNEL); 6705 if (!dmabuf->virt) { 6706 rpi_hdr = NULL; 6707 goto err_free_dmabuf; 6708 } 6709 6710 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 6711 rpi_hdr = NULL; 6712 goto err_free_coherent; 6713 } 6714 6715 /* Save the rpi header data for cleanup later. */ 6716 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 6717 if (!rpi_hdr) 6718 goto err_free_coherent; 6719 6720 rpi_hdr->dmabuf = dmabuf; 6721 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 6722 rpi_hdr->page_count = 1; 6723 spin_lock_irq(&phba->hbalock); 6724 6725 /* The rpi_hdr stores the logical index only. */ 6726 rpi_hdr->start_rpi = curr_rpi_range; 6727 rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT; 6728 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 6729 6730 spin_unlock_irq(&phba->hbalock); 6731 return rpi_hdr; 6732 6733 err_free_coherent: 6734 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 6735 dmabuf->virt, dmabuf->phys); 6736 err_free_dmabuf: 6737 kfree(dmabuf); 6738 return NULL; 6739 } 6740 6741 /** 6742 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 6743 * @phba: pointer to lpfc hba data structure. 6744 * 6745 * This routine is invoked to remove all memory resources allocated 6746 * to support rpis for SLI4 ports not supporting extents. This routine 6747 * presumes the caller has released all rpis consumed by fabric or port 6748 * logins and is prepared to have the header pages removed. 6749 **/ 6750 void 6751 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 6752 { 6753 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 6754 6755 if (!phba->sli4_hba.rpi_hdrs_in_use) 6756 goto exit; 6757 6758 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 6759 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 6760 list_del(&rpi_hdr->list); 6761 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 6762 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 6763 kfree(rpi_hdr->dmabuf); 6764 kfree(rpi_hdr); 6765 } 6766 exit: 6767 /* There are no rpis available to the port now. */ 6768 phba->sli4_hba.next_rpi = 0; 6769 } 6770 6771 /** 6772 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 6773 * @pdev: pointer to pci device data structure. 6774 * 6775 * This routine is invoked to allocate the driver hba data structure for an 6776 * HBA device. If the allocation is successful, the phba reference to the 6777 * PCI device data structure is set. 6778 * 6779 * Return codes 6780 * pointer to @phba - successful 6781 * NULL - error 6782 **/ 6783 static struct lpfc_hba * 6784 lpfc_hba_alloc(struct pci_dev *pdev) 6785 { 6786 struct lpfc_hba *phba; 6787 6788 /* Allocate memory for HBA structure */ 6789 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 6790 if (!phba) { 6791 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 6792 return NULL; 6793 } 6794 6795 /* Set reference to PCI device in HBA structure */ 6796 phba->pcidev = pdev; 6797 6798 /* Assign an unused board number */ 6799 phba->brd_no = lpfc_get_instance(); 6800 if (phba->brd_no < 0) { 6801 kfree(phba); 6802 return NULL; 6803 } 6804 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL; 6805 6806 spin_lock_init(&phba->ct_ev_lock); 6807 INIT_LIST_HEAD(&phba->ct_ev_waiters); 6808 6809 return phba; 6810 } 6811 6812 /** 6813 * lpfc_hba_free - Free driver hba data structure with a device. 6814 * @phba: pointer to lpfc hba data structure. 6815 * 6816 * This routine is invoked to free the driver hba data structure with an 6817 * HBA device. 6818 **/ 6819 static void 6820 lpfc_hba_free(struct lpfc_hba *phba) 6821 { 6822 /* Release the driver assigned board number */ 6823 idr_remove(&lpfc_hba_index, phba->brd_no); 6824 6825 /* Free memory allocated with sli3 rings */ 6826 kfree(phba->sli.sli3_ring); 6827 phba->sli.sli3_ring = NULL; 6828 6829 kfree(phba); 6830 return; 6831 } 6832 6833 /** 6834 * lpfc_create_shost - Create hba physical port with associated scsi host. 6835 * @phba: pointer to lpfc hba data structure. 6836 * 6837 * This routine is invoked to create HBA physical port and associate a SCSI 6838 * host with it. 6839 * 6840 * Return codes 6841 * 0 - successful 6842 * other values - error 6843 **/ 6844 static int 6845 lpfc_create_shost(struct lpfc_hba *phba) 6846 { 6847 struct lpfc_vport *vport; 6848 struct Scsi_Host *shost; 6849 6850 /* Initialize HBA FC structure */ 6851 phba->fc_edtov = FF_DEF_EDTOV; 6852 phba->fc_ratov = FF_DEF_RATOV; 6853 phba->fc_altov = FF_DEF_ALTOV; 6854 phba->fc_arbtov = FF_DEF_ARBTOV; 6855 6856 atomic_set(&phba->sdev_cnt, 0); 6857 atomic_set(&phba->fc4ScsiInputRequests, 0); 6858 atomic_set(&phba->fc4ScsiOutputRequests, 0); 6859 atomic_set(&phba->fc4ScsiControlRequests, 0); 6860 atomic_set(&phba->fc4ScsiIoCmpls, 0); 6861 atomic_set(&phba->fc4NvmeInputRequests, 0); 6862 atomic_set(&phba->fc4NvmeOutputRequests, 0); 6863 atomic_set(&phba->fc4NvmeControlRequests, 0); 6864 atomic_set(&phba->fc4NvmeIoCmpls, 0); 6865 atomic_set(&phba->fc4NvmeLsRequests, 0); 6866 atomic_set(&phba->fc4NvmeLsCmpls, 0); 6867 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 6868 if (!vport) 6869 return -ENODEV; 6870 6871 shost = lpfc_shost_from_vport(vport); 6872 phba->pport = vport; 6873 6874 if (phba->nvmet_support) { 6875 /* Only 1 vport (pport) will support NVME target */ 6876 if (phba->txrdy_payload_pool == NULL) { 6877 phba->txrdy_payload_pool = dma_pool_create( 6878 "txrdy_pool", &phba->pcidev->dev, 6879 TXRDY_PAYLOAD_LEN, 16, 0); 6880 if (phba->txrdy_payload_pool) { 6881 phba->targetport = NULL; 6882 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME; 6883 lpfc_printf_log(phba, KERN_INFO, 6884 LOG_INIT | LOG_NVME_DISC, 6885 "6076 NVME Target Found\n"); 6886 } 6887 } 6888 } 6889 6890 lpfc_debugfs_initialize(vport); 6891 /* Put reference to SCSI host to driver's device private data */ 6892 pci_set_drvdata(phba->pcidev, shost); 6893 6894 /* 6895 * At this point we are fully registered with PSA. In addition, 6896 * any initial discovery should be completed. 6897 */ 6898 vport->load_flag |= FC_ALLOW_FDMI; 6899 if (phba->cfg_enable_SmartSAN || 6900 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { 6901 6902 /* Setup appropriate attribute masks */ 6903 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR; 6904 if (phba->cfg_enable_SmartSAN) 6905 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR; 6906 else 6907 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR; 6908 } 6909 return 0; 6910 } 6911 6912 /** 6913 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 6914 * @phba: pointer to lpfc hba data structure. 6915 * 6916 * This routine is invoked to destroy HBA physical port and the associated 6917 * SCSI host. 6918 **/ 6919 static void 6920 lpfc_destroy_shost(struct lpfc_hba *phba) 6921 { 6922 struct lpfc_vport *vport = phba->pport; 6923 6924 /* Destroy physical port that associated with the SCSI host */ 6925 destroy_port(vport); 6926 6927 return; 6928 } 6929 6930 /** 6931 * lpfc_setup_bg - Setup Block guard structures and debug areas. 6932 * @phba: pointer to lpfc hba data structure. 6933 * @shost: the shost to be used to detect Block guard settings. 6934 * 6935 * This routine sets up the local Block guard protocol settings for @shost. 6936 * This routine also allocates memory for debugging bg buffers. 6937 **/ 6938 static void 6939 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 6940 { 6941 uint32_t old_mask; 6942 uint32_t old_guard; 6943 6944 int pagecnt = 10; 6945 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 6946 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6947 "1478 Registering BlockGuard with the " 6948 "SCSI layer\n"); 6949 6950 old_mask = phba->cfg_prot_mask; 6951 old_guard = phba->cfg_prot_guard; 6952 6953 /* Only allow supported values */ 6954 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 6955 SHOST_DIX_TYPE0_PROTECTION | 6956 SHOST_DIX_TYPE1_PROTECTION); 6957 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP | 6958 SHOST_DIX_GUARD_CRC); 6959 6960 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 6961 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 6962 phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 6963 6964 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 6965 if ((old_mask != phba->cfg_prot_mask) || 6966 (old_guard != phba->cfg_prot_guard)) 6967 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6968 "1475 Registering BlockGuard with the " 6969 "SCSI layer: mask %d guard %d\n", 6970 phba->cfg_prot_mask, 6971 phba->cfg_prot_guard); 6972 6973 scsi_host_set_prot(shost, phba->cfg_prot_mask); 6974 scsi_host_set_guard(shost, phba->cfg_prot_guard); 6975 } else 6976 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6977 "1479 Not Registering BlockGuard with the SCSI " 6978 "layer, Bad protection parameters: %d %d\n", 6979 old_mask, old_guard); 6980 } 6981 6982 if (!_dump_buf_data) { 6983 while (pagecnt) { 6984 spin_lock_init(&_dump_buf_lock); 6985 _dump_buf_data = 6986 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 6987 if (_dump_buf_data) { 6988 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6989 "9043 BLKGRD: allocated %d pages for " 6990 "_dump_buf_data at 0x%p\n", 6991 (1 << pagecnt), _dump_buf_data); 6992 _dump_buf_data_order = pagecnt; 6993 memset(_dump_buf_data, 0, 6994 ((1 << PAGE_SHIFT) << pagecnt)); 6995 break; 6996 } else 6997 --pagecnt; 6998 } 6999 if (!_dump_buf_data_order) 7000 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7001 "9044 BLKGRD: ERROR unable to allocate " 7002 "memory for hexdump\n"); 7003 } else 7004 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7005 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 7006 "\n", _dump_buf_data); 7007 if (!_dump_buf_dif) { 7008 while (pagecnt) { 7009 _dump_buf_dif = 7010 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 7011 if (_dump_buf_dif) { 7012 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7013 "9046 BLKGRD: allocated %d pages for " 7014 "_dump_buf_dif at 0x%p\n", 7015 (1 << pagecnt), _dump_buf_dif); 7016 _dump_buf_dif_order = pagecnt; 7017 memset(_dump_buf_dif, 0, 7018 ((1 << PAGE_SHIFT) << pagecnt)); 7019 break; 7020 } else 7021 --pagecnt; 7022 } 7023 if (!_dump_buf_dif_order) 7024 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7025 "9047 BLKGRD: ERROR unable to allocate " 7026 "memory for hexdump\n"); 7027 } else 7028 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7029 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 7030 _dump_buf_dif); 7031 } 7032 7033 /** 7034 * lpfc_post_init_setup - Perform necessary device post initialization setup. 7035 * @phba: pointer to lpfc hba data structure. 7036 * 7037 * This routine is invoked to perform all the necessary post initialization 7038 * setup for the device. 7039 **/ 7040 static void 7041 lpfc_post_init_setup(struct lpfc_hba *phba) 7042 { 7043 struct Scsi_Host *shost; 7044 struct lpfc_adapter_event_header adapter_event; 7045 7046 /* Get the default values for Model Name and Description */ 7047 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 7048 7049 /* 7050 * hba setup may have changed the hba_queue_depth so we need to 7051 * adjust the value of can_queue. 7052 */ 7053 shost = pci_get_drvdata(phba->pcidev); 7054 shost->can_queue = phba->cfg_hba_queue_depth - 10; 7055 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 7056 lpfc_setup_bg(phba, shost); 7057 7058 lpfc_host_attrib_init(shost); 7059 7060 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 7061 spin_lock_irq(shost->host_lock); 7062 lpfc_poll_start_timer(phba); 7063 spin_unlock_irq(shost->host_lock); 7064 } 7065 7066 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7067 "0428 Perform SCSI scan\n"); 7068 /* Send board arrival event to upper layer */ 7069 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 7070 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 7071 fc_host_post_vendor_event(shost, fc_get_event_number(), 7072 sizeof(adapter_event), 7073 (char *) &adapter_event, 7074 LPFC_NL_VENDOR_ID); 7075 return; 7076 } 7077 7078 /** 7079 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 7080 * @phba: pointer to lpfc hba data structure. 7081 * 7082 * This routine is invoked to set up the PCI device memory space for device 7083 * with SLI-3 interface spec. 7084 * 7085 * Return codes 7086 * 0 - successful 7087 * other values - error 7088 **/ 7089 static int 7090 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 7091 { 7092 struct pci_dev *pdev; 7093 unsigned long bar0map_len, bar2map_len; 7094 int i, hbq_count; 7095 void *ptr; 7096 int error = -ENODEV; 7097 7098 /* Obtain PCI device reference */ 7099 if (!phba->pcidev) 7100 return error; 7101 else 7102 pdev = phba->pcidev; 7103 7104 /* Set the device DMA mask size */ 7105 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7106 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7107 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7108 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7109 return error; 7110 } 7111 } 7112 7113 /* Get the bus address of Bar0 and Bar2 and the number of bytes 7114 * required by each mapping. 7115 */ 7116 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7117 bar0map_len = pci_resource_len(pdev, 0); 7118 7119 phba->pci_bar2_map = pci_resource_start(pdev, 2); 7120 bar2map_len = pci_resource_len(pdev, 2); 7121 7122 /* Map HBA SLIM to a kernel virtual address. */ 7123 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 7124 if (!phba->slim_memmap_p) { 7125 dev_printk(KERN_ERR, &pdev->dev, 7126 "ioremap failed for SLIM memory.\n"); 7127 goto out; 7128 } 7129 7130 /* Map HBA Control Registers to a kernel virtual address. */ 7131 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 7132 if (!phba->ctrl_regs_memmap_p) { 7133 dev_printk(KERN_ERR, &pdev->dev, 7134 "ioremap failed for HBA control registers.\n"); 7135 goto out_iounmap_slim; 7136 } 7137 7138 /* Allocate memory for SLI-2 structures */ 7139 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7140 &phba->slim2p.phys, GFP_KERNEL); 7141 if (!phba->slim2p.virt) 7142 goto out_iounmap; 7143 7144 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 7145 phba->mbox_ext = (phba->slim2p.virt + 7146 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 7147 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 7148 phba->IOCBs = (phba->slim2p.virt + 7149 offsetof(struct lpfc_sli2_slim, IOCBs)); 7150 7151 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 7152 lpfc_sli_hbq_size(), 7153 &phba->hbqslimp.phys, 7154 GFP_KERNEL); 7155 if (!phba->hbqslimp.virt) 7156 goto out_free_slim; 7157 7158 hbq_count = lpfc_sli_hbq_count(); 7159 ptr = phba->hbqslimp.virt; 7160 for (i = 0; i < hbq_count; ++i) { 7161 phba->hbqs[i].hbq_virt = ptr; 7162 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 7163 ptr += (lpfc_hbq_defs[i]->entry_count * 7164 sizeof(struct lpfc_hbq_entry)); 7165 } 7166 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 7167 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 7168 7169 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 7170 7171 phba->MBslimaddr = phba->slim_memmap_p; 7172 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 7173 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 7174 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 7175 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 7176 7177 return 0; 7178 7179 out_free_slim: 7180 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7181 phba->slim2p.virt, phba->slim2p.phys); 7182 out_iounmap: 7183 iounmap(phba->ctrl_regs_memmap_p); 7184 out_iounmap_slim: 7185 iounmap(phba->slim_memmap_p); 7186 out: 7187 return error; 7188 } 7189 7190 /** 7191 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 7192 * @phba: pointer to lpfc hba data structure. 7193 * 7194 * This routine is invoked to unset the PCI device memory space for device 7195 * with SLI-3 interface spec. 7196 **/ 7197 static void 7198 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 7199 { 7200 struct pci_dev *pdev; 7201 7202 /* Obtain PCI device reference */ 7203 if (!phba->pcidev) 7204 return; 7205 else 7206 pdev = phba->pcidev; 7207 7208 /* Free coherent DMA memory allocated */ 7209 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7210 phba->hbqslimp.virt, phba->hbqslimp.phys); 7211 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7212 phba->slim2p.virt, phba->slim2p.phys); 7213 7214 /* I/O memory unmap */ 7215 iounmap(phba->ctrl_regs_memmap_p); 7216 iounmap(phba->slim_memmap_p); 7217 7218 return; 7219 } 7220 7221 /** 7222 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 7223 * @phba: pointer to lpfc hba data structure. 7224 * 7225 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 7226 * done and check status. 7227 * 7228 * Return 0 if successful, otherwise -ENODEV. 7229 **/ 7230 int 7231 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 7232 { 7233 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 7234 struct lpfc_register reg_data; 7235 int i, port_error = 0; 7236 uint32_t if_type; 7237 7238 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 7239 memset(®_data, 0, sizeof(reg_data)); 7240 if (!phba->sli4_hba.PSMPHRregaddr) 7241 return -ENODEV; 7242 7243 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 7244 for (i = 0; i < 3000; i++) { 7245 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 7246 &portsmphr_reg.word0) || 7247 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 7248 /* Port has a fatal POST error, break out */ 7249 port_error = -ENODEV; 7250 break; 7251 } 7252 if (LPFC_POST_STAGE_PORT_READY == 7253 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 7254 break; 7255 msleep(10); 7256 } 7257 7258 /* 7259 * If there was a port error during POST, then don't proceed with 7260 * other register reads as the data may not be valid. Just exit. 7261 */ 7262 if (port_error) { 7263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7264 "1408 Port Failed POST - portsmphr=0x%x, " 7265 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 7266 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 7267 portsmphr_reg.word0, 7268 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 7269 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 7270 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 7271 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 7272 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 7273 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 7274 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 7275 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 7276 } else { 7277 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7278 "2534 Device Info: SLIFamily=0x%x, " 7279 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 7280 "SLIHint_2=0x%x, FT=0x%x\n", 7281 bf_get(lpfc_sli_intf_sli_family, 7282 &phba->sli4_hba.sli_intf), 7283 bf_get(lpfc_sli_intf_slirev, 7284 &phba->sli4_hba.sli_intf), 7285 bf_get(lpfc_sli_intf_if_type, 7286 &phba->sli4_hba.sli_intf), 7287 bf_get(lpfc_sli_intf_sli_hint1, 7288 &phba->sli4_hba.sli_intf), 7289 bf_get(lpfc_sli_intf_sli_hint2, 7290 &phba->sli4_hba.sli_intf), 7291 bf_get(lpfc_sli_intf_func_type, 7292 &phba->sli4_hba.sli_intf)); 7293 /* 7294 * Check for other Port errors during the initialization 7295 * process. Fail the load if the port did not come up 7296 * correctly. 7297 */ 7298 if_type = bf_get(lpfc_sli_intf_if_type, 7299 &phba->sli4_hba.sli_intf); 7300 switch (if_type) { 7301 case LPFC_SLI_INTF_IF_TYPE_0: 7302 phba->sli4_hba.ue_mask_lo = 7303 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 7304 phba->sli4_hba.ue_mask_hi = 7305 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 7306 uerrlo_reg.word0 = 7307 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 7308 uerrhi_reg.word0 = 7309 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 7310 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 7311 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 7312 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7313 "1422 Unrecoverable Error " 7314 "Detected during POST " 7315 "uerr_lo_reg=0x%x, " 7316 "uerr_hi_reg=0x%x, " 7317 "ue_mask_lo_reg=0x%x, " 7318 "ue_mask_hi_reg=0x%x\n", 7319 uerrlo_reg.word0, 7320 uerrhi_reg.word0, 7321 phba->sli4_hba.ue_mask_lo, 7322 phba->sli4_hba.ue_mask_hi); 7323 port_error = -ENODEV; 7324 } 7325 break; 7326 case LPFC_SLI_INTF_IF_TYPE_2: 7327 /* Final checks. The port status should be clean. */ 7328 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 7329 ®_data.word0) || 7330 (bf_get(lpfc_sliport_status_err, ®_data) && 7331 !bf_get(lpfc_sliport_status_rn, ®_data))) { 7332 phba->work_status[0] = 7333 readl(phba->sli4_hba.u.if_type2. 7334 ERR1regaddr); 7335 phba->work_status[1] = 7336 readl(phba->sli4_hba.u.if_type2. 7337 ERR2regaddr); 7338 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7339 "2888 Unrecoverable port error " 7340 "following POST: port status reg " 7341 "0x%x, port_smphr reg 0x%x, " 7342 "error 1=0x%x, error 2=0x%x\n", 7343 reg_data.word0, 7344 portsmphr_reg.word0, 7345 phba->work_status[0], 7346 phba->work_status[1]); 7347 port_error = -ENODEV; 7348 } 7349 break; 7350 case LPFC_SLI_INTF_IF_TYPE_1: 7351 default: 7352 break; 7353 } 7354 } 7355 return port_error; 7356 } 7357 7358 /** 7359 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 7360 * @phba: pointer to lpfc hba data structure. 7361 * @if_type: The SLI4 interface type getting configured. 7362 * 7363 * This routine is invoked to set up SLI4 BAR0 PCI config space register 7364 * memory map. 7365 **/ 7366 static void 7367 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 7368 { 7369 switch (if_type) { 7370 case LPFC_SLI_INTF_IF_TYPE_0: 7371 phba->sli4_hba.u.if_type0.UERRLOregaddr = 7372 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 7373 phba->sli4_hba.u.if_type0.UERRHIregaddr = 7374 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 7375 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 7376 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 7377 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 7378 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 7379 phba->sli4_hba.SLIINTFregaddr = 7380 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7381 break; 7382 case LPFC_SLI_INTF_IF_TYPE_2: 7383 phba->sli4_hba.u.if_type2.EQDregaddr = 7384 phba->sli4_hba.conf_regs_memmap_p + 7385 LPFC_CTL_PORT_EQ_DELAY_OFFSET; 7386 phba->sli4_hba.u.if_type2.ERR1regaddr = 7387 phba->sli4_hba.conf_regs_memmap_p + 7388 LPFC_CTL_PORT_ER1_OFFSET; 7389 phba->sli4_hba.u.if_type2.ERR2regaddr = 7390 phba->sli4_hba.conf_regs_memmap_p + 7391 LPFC_CTL_PORT_ER2_OFFSET; 7392 phba->sli4_hba.u.if_type2.CTRLregaddr = 7393 phba->sli4_hba.conf_regs_memmap_p + 7394 LPFC_CTL_PORT_CTL_OFFSET; 7395 phba->sli4_hba.u.if_type2.STATUSregaddr = 7396 phba->sli4_hba.conf_regs_memmap_p + 7397 LPFC_CTL_PORT_STA_OFFSET; 7398 phba->sli4_hba.SLIINTFregaddr = 7399 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7400 phba->sli4_hba.PSMPHRregaddr = 7401 phba->sli4_hba.conf_regs_memmap_p + 7402 LPFC_CTL_PORT_SEM_OFFSET; 7403 phba->sli4_hba.RQDBregaddr = 7404 phba->sli4_hba.conf_regs_memmap_p + 7405 LPFC_ULP0_RQ_DOORBELL; 7406 phba->sli4_hba.WQDBregaddr = 7407 phba->sli4_hba.conf_regs_memmap_p + 7408 LPFC_ULP0_WQ_DOORBELL; 7409 phba->sli4_hba.EQCQDBregaddr = 7410 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 7411 phba->sli4_hba.MQDBregaddr = 7412 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 7413 phba->sli4_hba.BMBXregaddr = 7414 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 7415 break; 7416 case LPFC_SLI_INTF_IF_TYPE_1: 7417 default: 7418 dev_printk(KERN_ERR, &phba->pcidev->dev, 7419 "FATAL - unsupported SLI4 interface type - %d\n", 7420 if_type); 7421 break; 7422 } 7423 } 7424 7425 /** 7426 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 7427 * @phba: pointer to lpfc hba data structure. 7428 * 7429 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 7430 * memory map. 7431 **/ 7432 static void 7433 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 7434 { 7435 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7436 LPFC_SLIPORT_IF0_SMPHR; 7437 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7438 LPFC_HST_ISR0; 7439 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7440 LPFC_HST_IMR0; 7441 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7442 LPFC_HST_ISCR0; 7443 } 7444 7445 /** 7446 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 7447 * @phba: pointer to lpfc hba data structure. 7448 * @vf: virtual function number 7449 * 7450 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 7451 * based on the given viftual function number, @vf. 7452 * 7453 * Return 0 if successful, otherwise -ENODEV. 7454 **/ 7455 static int 7456 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 7457 { 7458 if (vf > LPFC_VIR_FUNC_MAX) 7459 return -ENODEV; 7460 7461 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7462 vf * LPFC_VFR_PAGE_SIZE + 7463 LPFC_ULP0_RQ_DOORBELL); 7464 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7465 vf * LPFC_VFR_PAGE_SIZE + 7466 LPFC_ULP0_WQ_DOORBELL); 7467 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7468 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 7469 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7470 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 7471 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7472 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 7473 return 0; 7474 } 7475 7476 /** 7477 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 7478 * @phba: pointer to lpfc hba data structure. 7479 * 7480 * This routine is invoked to create the bootstrap mailbox 7481 * region consistent with the SLI-4 interface spec. This 7482 * routine allocates all memory necessary to communicate 7483 * mailbox commands to the port and sets up all alignment 7484 * needs. No locks are expected to be held when calling 7485 * this routine. 7486 * 7487 * Return codes 7488 * 0 - successful 7489 * -ENOMEM - could not allocated memory. 7490 **/ 7491 static int 7492 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 7493 { 7494 uint32_t bmbx_size; 7495 struct lpfc_dmabuf *dmabuf; 7496 struct dma_address *dma_address; 7497 uint32_t pa_addr; 7498 uint64_t phys_addr; 7499 7500 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 7501 if (!dmabuf) 7502 return -ENOMEM; 7503 7504 /* 7505 * The bootstrap mailbox region is comprised of 2 parts 7506 * plus an alignment restriction of 16 bytes. 7507 */ 7508 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 7509 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size, 7510 &dmabuf->phys, GFP_KERNEL); 7511 if (!dmabuf->virt) { 7512 kfree(dmabuf); 7513 return -ENOMEM; 7514 } 7515 7516 /* 7517 * Initialize the bootstrap mailbox pointers now so that the register 7518 * operations are simple later. The mailbox dma address is required 7519 * to be 16-byte aligned. Also align the virtual memory as each 7520 * maibox is copied into the bmbx mailbox region before issuing the 7521 * command to the port. 7522 */ 7523 phba->sli4_hba.bmbx.dmabuf = dmabuf; 7524 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 7525 7526 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 7527 LPFC_ALIGN_16_BYTE); 7528 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 7529 LPFC_ALIGN_16_BYTE); 7530 7531 /* 7532 * Set the high and low physical addresses now. The SLI4 alignment 7533 * requirement is 16 bytes and the mailbox is posted to the port 7534 * as two 30-bit addresses. The other data is a bit marking whether 7535 * the 30-bit address is the high or low address. 7536 * Upcast bmbx aphys to 64bits so shift instruction compiles 7537 * clean on 32 bit machines. 7538 */ 7539 dma_address = &phba->sli4_hba.bmbx.dma_address; 7540 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 7541 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 7542 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 7543 LPFC_BMBX_BIT1_ADDR_HI); 7544 7545 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 7546 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 7547 LPFC_BMBX_BIT1_ADDR_LO); 7548 return 0; 7549 } 7550 7551 /** 7552 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 7553 * @phba: pointer to lpfc hba data structure. 7554 * 7555 * This routine is invoked to teardown the bootstrap mailbox 7556 * region and release all host resources. This routine requires 7557 * the caller to ensure all mailbox commands recovered, no 7558 * additional mailbox comands are sent, and interrupts are disabled 7559 * before calling this routine. 7560 * 7561 **/ 7562 static void 7563 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 7564 { 7565 dma_free_coherent(&phba->pcidev->dev, 7566 phba->sli4_hba.bmbx.bmbx_size, 7567 phba->sli4_hba.bmbx.dmabuf->virt, 7568 phba->sli4_hba.bmbx.dmabuf->phys); 7569 7570 kfree(phba->sli4_hba.bmbx.dmabuf); 7571 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 7572 } 7573 7574 /** 7575 * lpfc_sli4_read_config - Get the config parameters. 7576 * @phba: pointer to lpfc hba data structure. 7577 * 7578 * This routine is invoked to read the configuration parameters from the HBA. 7579 * The configuration parameters are used to set the base and maximum values 7580 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 7581 * allocation for the port. 7582 * 7583 * Return codes 7584 * 0 - successful 7585 * -ENOMEM - No available memory 7586 * -EIO - The mailbox failed to complete successfully. 7587 **/ 7588 int 7589 lpfc_sli4_read_config(struct lpfc_hba *phba) 7590 { 7591 LPFC_MBOXQ_t *pmb; 7592 struct lpfc_mbx_read_config *rd_config; 7593 union lpfc_sli4_cfg_shdr *shdr; 7594 uint32_t shdr_status, shdr_add_status; 7595 struct lpfc_mbx_get_func_cfg *get_func_cfg; 7596 struct lpfc_rsrc_desc_fcfcoe *desc; 7597 char *pdesc_0; 7598 uint16_t forced_link_speed; 7599 uint32_t if_type; 7600 int length, i, rc = 0, rc2; 7601 7602 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7603 if (!pmb) { 7604 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7605 "2011 Unable to allocate memory for issuing " 7606 "SLI_CONFIG_SPECIAL mailbox command\n"); 7607 return -ENOMEM; 7608 } 7609 7610 lpfc_read_config(phba, pmb); 7611 7612 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7613 if (rc != MBX_SUCCESS) { 7614 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7615 "2012 Mailbox failed , mbxCmd x%x " 7616 "READ_CONFIG, mbxStatus x%x\n", 7617 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7618 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7619 rc = -EIO; 7620 } else { 7621 rd_config = &pmb->u.mqe.un.rd_config; 7622 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 7623 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 7624 phba->sli4_hba.lnk_info.lnk_tp = 7625 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 7626 phba->sli4_hba.lnk_info.lnk_no = 7627 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 7628 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7629 "3081 lnk_type:%d, lnk_numb:%d\n", 7630 phba->sli4_hba.lnk_info.lnk_tp, 7631 phba->sli4_hba.lnk_info.lnk_no); 7632 } else 7633 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 7634 "3082 Mailbox (x%x) returned ldv:x0\n", 7635 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 7636 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) { 7637 phba->bbcredit_support = 1; 7638 phba->sli4_hba.bbscn_params.word0 = rd_config->word8; 7639 } 7640 7641 phba->sli4_hba.extents_in_use = 7642 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 7643 phba->sli4_hba.max_cfg_param.max_xri = 7644 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 7645 phba->sli4_hba.max_cfg_param.xri_base = 7646 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 7647 phba->sli4_hba.max_cfg_param.max_vpi = 7648 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 7649 phba->sli4_hba.max_cfg_param.vpi_base = 7650 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 7651 phba->sli4_hba.max_cfg_param.max_rpi = 7652 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 7653 phba->sli4_hba.max_cfg_param.rpi_base = 7654 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 7655 phba->sli4_hba.max_cfg_param.max_vfi = 7656 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 7657 phba->sli4_hba.max_cfg_param.vfi_base = 7658 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 7659 phba->sli4_hba.max_cfg_param.max_fcfi = 7660 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 7661 phba->sli4_hba.max_cfg_param.max_eq = 7662 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 7663 phba->sli4_hba.max_cfg_param.max_rq = 7664 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 7665 phba->sli4_hba.max_cfg_param.max_wq = 7666 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 7667 phba->sli4_hba.max_cfg_param.max_cq = 7668 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 7669 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 7670 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 7671 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 7672 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 7673 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 7674 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 7675 phba->max_vports = phba->max_vpi; 7676 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7677 "2003 cfg params Extents? %d " 7678 "XRI(B:%d M:%d), " 7679 "VPI(B:%d M:%d) " 7680 "VFI(B:%d M:%d) " 7681 "RPI(B:%d M:%d) " 7682 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n", 7683 phba->sli4_hba.extents_in_use, 7684 phba->sli4_hba.max_cfg_param.xri_base, 7685 phba->sli4_hba.max_cfg_param.max_xri, 7686 phba->sli4_hba.max_cfg_param.vpi_base, 7687 phba->sli4_hba.max_cfg_param.max_vpi, 7688 phba->sli4_hba.max_cfg_param.vfi_base, 7689 phba->sli4_hba.max_cfg_param.max_vfi, 7690 phba->sli4_hba.max_cfg_param.rpi_base, 7691 phba->sli4_hba.max_cfg_param.max_rpi, 7692 phba->sli4_hba.max_cfg_param.max_fcfi, 7693 phba->sli4_hba.max_cfg_param.max_eq, 7694 phba->sli4_hba.max_cfg_param.max_cq, 7695 phba->sli4_hba.max_cfg_param.max_wq, 7696 phba->sli4_hba.max_cfg_param.max_rq); 7697 7698 } 7699 7700 if (rc) 7701 goto read_cfg_out; 7702 7703 /* Update link speed if forced link speed is supported */ 7704 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7705 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7706 forced_link_speed = 7707 bf_get(lpfc_mbx_rd_conf_link_speed, rd_config); 7708 if (forced_link_speed) { 7709 phba->hba_flag |= HBA_FORCED_LINK_SPEED; 7710 7711 switch (forced_link_speed) { 7712 case LINK_SPEED_1G: 7713 phba->cfg_link_speed = 7714 LPFC_USER_LINK_SPEED_1G; 7715 break; 7716 case LINK_SPEED_2G: 7717 phba->cfg_link_speed = 7718 LPFC_USER_LINK_SPEED_2G; 7719 break; 7720 case LINK_SPEED_4G: 7721 phba->cfg_link_speed = 7722 LPFC_USER_LINK_SPEED_4G; 7723 break; 7724 case LINK_SPEED_8G: 7725 phba->cfg_link_speed = 7726 LPFC_USER_LINK_SPEED_8G; 7727 break; 7728 case LINK_SPEED_10G: 7729 phba->cfg_link_speed = 7730 LPFC_USER_LINK_SPEED_10G; 7731 break; 7732 case LINK_SPEED_16G: 7733 phba->cfg_link_speed = 7734 LPFC_USER_LINK_SPEED_16G; 7735 break; 7736 case LINK_SPEED_32G: 7737 phba->cfg_link_speed = 7738 LPFC_USER_LINK_SPEED_32G; 7739 break; 7740 case 0xffff: 7741 phba->cfg_link_speed = 7742 LPFC_USER_LINK_SPEED_AUTO; 7743 break; 7744 default: 7745 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7746 "0047 Unrecognized link " 7747 "speed : %d\n", 7748 forced_link_speed); 7749 phba->cfg_link_speed = 7750 LPFC_USER_LINK_SPEED_AUTO; 7751 } 7752 } 7753 } 7754 7755 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 7756 length = phba->sli4_hba.max_cfg_param.max_xri - 7757 lpfc_sli4_get_els_iocb_cnt(phba); 7758 if (phba->cfg_hba_queue_depth > length) { 7759 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7760 "3361 HBA queue depth changed from %d to %d\n", 7761 phba->cfg_hba_queue_depth, length); 7762 phba->cfg_hba_queue_depth = length; 7763 } 7764 7765 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 7766 LPFC_SLI_INTF_IF_TYPE_2) 7767 goto read_cfg_out; 7768 7769 /* get the pf# and vf# for SLI4 if_type 2 port */ 7770 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 7771 sizeof(struct lpfc_sli4_cfg_mhdr)); 7772 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 7773 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 7774 length, LPFC_SLI4_MBX_EMBED); 7775 7776 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7777 shdr = (union lpfc_sli4_cfg_shdr *) 7778 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 7779 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7780 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7781 if (rc2 || shdr_status || shdr_add_status) { 7782 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7783 "3026 Mailbox failed , mbxCmd x%x " 7784 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 7785 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7786 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7787 goto read_cfg_out; 7788 } 7789 7790 /* search for fc_fcoe resrouce descriptor */ 7791 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 7792 7793 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 7794 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 7795 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 7796 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 7797 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 7798 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 7799 goto read_cfg_out; 7800 7801 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 7802 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 7803 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 7804 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 7805 phba->sli4_hba.iov.pf_number = 7806 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 7807 phba->sli4_hba.iov.vf_number = 7808 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 7809 break; 7810 } 7811 } 7812 7813 if (i < LPFC_RSRC_DESC_MAX_NUM) 7814 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7815 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 7816 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 7817 phba->sli4_hba.iov.vf_number); 7818 else 7819 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7820 "3028 GET_FUNCTION_CONFIG: failed to find " 7821 "Resrouce Descriptor:x%x\n", 7822 LPFC_RSRC_DESC_TYPE_FCFCOE); 7823 7824 read_cfg_out: 7825 mempool_free(pmb, phba->mbox_mem_pool); 7826 return rc; 7827 } 7828 7829 /** 7830 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 7831 * @phba: pointer to lpfc hba data structure. 7832 * 7833 * This routine is invoked to setup the port-side endian order when 7834 * the port if_type is 0. This routine has no function for other 7835 * if_types. 7836 * 7837 * Return codes 7838 * 0 - successful 7839 * -ENOMEM - No available memory 7840 * -EIO - The mailbox failed to complete successfully. 7841 **/ 7842 static int 7843 lpfc_setup_endian_order(struct lpfc_hba *phba) 7844 { 7845 LPFC_MBOXQ_t *mboxq; 7846 uint32_t if_type, rc = 0; 7847 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 7848 HOST_ENDIAN_HIGH_WORD1}; 7849 7850 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7851 switch (if_type) { 7852 case LPFC_SLI_INTF_IF_TYPE_0: 7853 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7854 GFP_KERNEL); 7855 if (!mboxq) { 7856 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7857 "0492 Unable to allocate memory for " 7858 "issuing SLI_CONFIG_SPECIAL mailbox " 7859 "command\n"); 7860 return -ENOMEM; 7861 } 7862 7863 /* 7864 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 7865 * two words to contain special data values and no other data. 7866 */ 7867 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 7868 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 7869 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7870 if (rc != MBX_SUCCESS) { 7871 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7872 "0493 SLI_CONFIG_SPECIAL mailbox " 7873 "failed with status x%x\n", 7874 rc); 7875 rc = -EIO; 7876 } 7877 mempool_free(mboxq, phba->mbox_mem_pool); 7878 break; 7879 case LPFC_SLI_INTF_IF_TYPE_2: 7880 case LPFC_SLI_INTF_IF_TYPE_1: 7881 default: 7882 break; 7883 } 7884 return rc; 7885 } 7886 7887 /** 7888 * lpfc_sli4_queue_verify - Verify and update EQ counts 7889 * @phba: pointer to lpfc hba data structure. 7890 * 7891 * This routine is invoked to check the user settable queue counts for EQs. 7892 * After this routine is called the counts will be set to valid values that 7893 * adhere to the constraints of the system's interrupt vectors and the port's 7894 * queue resources. 7895 * 7896 * Return codes 7897 * 0 - successful 7898 * -ENOMEM - No available memory 7899 **/ 7900 static int 7901 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 7902 { 7903 int io_channel; 7904 int fof_vectors = phba->cfg_fof ? 1 : 0; 7905 7906 /* 7907 * Sanity check for configured queue parameters against the run-time 7908 * device parameters 7909 */ 7910 7911 /* Sanity check on HBA EQ parameters */ 7912 io_channel = phba->io_channel_irqs; 7913 7914 if (phba->sli4_hba.num_online_cpu < io_channel) { 7915 lpfc_printf_log(phba, 7916 KERN_ERR, LOG_INIT, 7917 "3188 Reducing IO channels to match number of " 7918 "online CPUs: from %d to %d\n", 7919 io_channel, phba->sli4_hba.num_online_cpu); 7920 io_channel = phba->sli4_hba.num_online_cpu; 7921 } 7922 7923 if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) { 7924 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7925 "2575 Reducing IO channels to match number of " 7926 "available EQs: from %d to %d\n", 7927 io_channel, 7928 phba->sli4_hba.max_cfg_param.max_eq); 7929 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors; 7930 } 7931 7932 /* The actual number of FCP / NVME event queues adopted */ 7933 if (io_channel != phba->io_channel_irqs) 7934 phba->io_channel_irqs = io_channel; 7935 if (phba->cfg_fcp_io_channel > io_channel) 7936 phba->cfg_fcp_io_channel = io_channel; 7937 if (phba->cfg_nvme_io_channel > io_channel) 7938 phba->cfg_nvme_io_channel = io_channel; 7939 if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq) 7940 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel; 7941 7942 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7943 "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n", 7944 phba->io_channel_irqs, phba->cfg_fcp_io_channel, 7945 phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq); 7946 7947 /* Get EQ depth from module parameter, fake the default for now */ 7948 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 7949 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 7950 7951 /* Get CQ depth from module parameter, fake the default for now */ 7952 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 7953 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 7954 return 0; 7955 } 7956 7957 static int 7958 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx) 7959 { 7960 struct lpfc_queue *qdesc; 7961 int cnt; 7962 7963 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7964 phba->sli4_hba.cq_ecount); 7965 if (!qdesc) { 7966 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7967 "0508 Failed allocate fast-path NVME CQ (%d)\n", 7968 wqidx); 7969 return 1; 7970 } 7971 phba->sli4_hba.nvme_cq[wqidx] = qdesc; 7972 7973 cnt = LPFC_NVME_WQSIZE; 7974 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_WQE128_SIZE, cnt); 7975 if (!qdesc) { 7976 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7977 "0509 Failed allocate fast-path NVME WQ (%d)\n", 7978 wqidx); 7979 return 1; 7980 } 7981 phba->sli4_hba.nvme_wq[wqidx] = qdesc; 7982 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 7983 return 0; 7984 } 7985 7986 static int 7987 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx) 7988 { 7989 struct lpfc_queue *qdesc; 7990 uint32_t wqesize; 7991 7992 /* Create Fast Path FCP CQs */ 7993 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7994 phba->sli4_hba.cq_ecount); 7995 if (!qdesc) { 7996 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7997 "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx); 7998 return 1; 7999 } 8000 phba->sli4_hba.fcp_cq[wqidx] = qdesc; 8001 8002 /* Create Fast Path FCP WQs */ 8003 wqesize = (phba->fcp_embed_io) ? 8004 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 8005 qdesc = lpfc_sli4_queue_alloc(phba, wqesize, phba->sli4_hba.wq_ecount); 8006 if (!qdesc) { 8007 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8008 "0503 Failed allocate fast-path FCP WQ (%d)\n", 8009 wqidx); 8010 return 1; 8011 } 8012 phba->sli4_hba.fcp_wq[wqidx] = qdesc; 8013 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8014 return 0; 8015 } 8016 8017 /** 8018 * lpfc_sli4_queue_create - Create all the SLI4 queues 8019 * @phba: pointer to lpfc hba data structure. 8020 * 8021 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 8022 * operation. For each SLI4 queue type, the parameters such as queue entry 8023 * count (queue depth) shall be taken from the module parameter. For now, 8024 * we just use some constant number as place holder. 8025 * 8026 * Return codes 8027 * 0 - successful 8028 * -ENOMEM - No availble memory 8029 * -EIO - The mailbox failed to complete successfully. 8030 **/ 8031 int 8032 lpfc_sli4_queue_create(struct lpfc_hba *phba) 8033 { 8034 struct lpfc_queue *qdesc; 8035 int idx, io_channel; 8036 8037 /* 8038 * Create HBA Record arrays. 8039 * Both NVME and FCP will share that same vectors / EQs 8040 */ 8041 io_channel = phba->io_channel_irqs; 8042 if (!io_channel) 8043 return -ERANGE; 8044 8045 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 8046 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 8047 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 8048 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 8049 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 8050 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 8051 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 8052 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 8053 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 8054 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 8055 8056 phba->sli4_hba.hba_eq = kcalloc(io_channel, 8057 sizeof(struct lpfc_queue *), 8058 GFP_KERNEL); 8059 if (!phba->sli4_hba.hba_eq) { 8060 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8061 "2576 Failed allocate memory for " 8062 "fast-path EQ record array\n"); 8063 goto out_error; 8064 } 8065 8066 if (phba->cfg_fcp_io_channel) { 8067 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel, 8068 sizeof(struct lpfc_queue *), 8069 GFP_KERNEL); 8070 if (!phba->sli4_hba.fcp_cq) { 8071 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8072 "2577 Failed allocate memory for " 8073 "fast-path CQ record array\n"); 8074 goto out_error; 8075 } 8076 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel, 8077 sizeof(struct lpfc_queue *), 8078 GFP_KERNEL); 8079 if (!phba->sli4_hba.fcp_wq) { 8080 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8081 "2578 Failed allocate memory for " 8082 "fast-path FCP WQ record array\n"); 8083 goto out_error; 8084 } 8085 /* 8086 * Since the first EQ can have multiple CQs associated with it, 8087 * this array is used to quickly see if we have a FCP fast-path 8088 * CQ match. 8089 */ 8090 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel, 8091 sizeof(uint16_t), 8092 GFP_KERNEL); 8093 if (!phba->sli4_hba.fcp_cq_map) { 8094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8095 "2545 Failed allocate memory for " 8096 "fast-path CQ map\n"); 8097 goto out_error; 8098 } 8099 } 8100 8101 if (phba->cfg_nvme_io_channel) { 8102 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel, 8103 sizeof(struct lpfc_queue *), 8104 GFP_KERNEL); 8105 if (!phba->sli4_hba.nvme_cq) { 8106 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8107 "6077 Failed allocate memory for " 8108 "fast-path CQ record array\n"); 8109 goto out_error; 8110 } 8111 8112 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel, 8113 sizeof(struct lpfc_queue *), 8114 GFP_KERNEL); 8115 if (!phba->sli4_hba.nvme_wq) { 8116 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8117 "2581 Failed allocate memory for " 8118 "fast-path NVME WQ record array\n"); 8119 goto out_error; 8120 } 8121 8122 /* 8123 * Since the first EQ can have multiple CQs associated with it, 8124 * this array is used to quickly see if we have a NVME fast-path 8125 * CQ match. 8126 */ 8127 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel, 8128 sizeof(uint16_t), 8129 GFP_KERNEL); 8130 if (!phba->sli4_hba.nvme_cq_map) { 8131 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8132 "6078 Failed allocate memory for " 8133 "fast-path CQ map\n"); 8134 goto out_error; 8135 } 8136 8137 if (phba->nvmet_support) { 8138 phba->sli4_hba.nvmet_cqset = kcalloc( 8139 phba->cfg_nvmet_mrq, 8140 sizeof(struct lpfc_queue *), 8141 GFP_KERNEL); 8142 if (!phba->sli4_hba.nvmet_cqset) { 8143 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8144 "3121 Fail allocate memory for " 8145 "fast-path CQ set array\n"); 8146 goto out_error; 8147 } 8148 phba->sli4_hba.nvmet_mrq_hdr = kcalloc( 8149 phba->cfg_nvmet_mrq, 8150 sizeof(struct lpfc_queue *), 8151 GFP_KERNEL); 8152 if (!phba->sli4_hba.nvmet_mrq_hdr) { 8153 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8154 "3122 Fail allocate memory for " 8155 "fast-path RQ set hdr array\n"); 8156 goto out_error; 8157 } 8158 phba->sli4_hba.nvmet_mrq_data = kcalloc( 8159 phba->cfg_nvmet_mrq, 8160 sizeof(struct lpfc_queue *), 8161 GFP_KERNEL); 8162 if (!phba->sli4_hba.nvmet_mrq_data) { 8163 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8164 "3124 Fail allocate memory for " 8165 "fast-path RQ set data array\n"); 8166 goto out_error; 8167 } 8168 } 8169 } 8170 8171 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8172 8173 /* Create HBA Event Queues (EQs) */ 8174 for (idx = 0; idx < io_channel; idx++) { 8175 /* Create EQs */ 8176 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 8177 phba->sli4_hba.eq_ecount); 8178 if (!qdesc) { 8179 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8180 "0497 Failed allocate EQ (%d)\n", idx); 8181 goto out_error; 8182 } 8183 phba->sli4_hba.hba_eq[idx] = qdesc; 8184 } 8185 8186 /* FCP and NVME io channels are not required to be balanced */ 8187 8188 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 8189 if (lpfc_alloc_fcp_wq_cq(phba, idx)) 8190 goto out_error; 8191 8192 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 8193 if (lpfc_alloc_nvme_wq_cq(phba, idx)) 8194 goto out_error; 8195 8196 if (phba->nvmet_support) { 8197 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8198 qdesc = lpfc_sli4_queue_alloc(phba, 8199 phba->sli4_hba.cq_esize, 8200 phba->sli4_hba.cq_ecount); 8201 if (!qdesc) { 8202 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8203 "3142 Failed allocate NVME " 8204 "CQ Set (%d)\n", idx); 8205 goto out_error; 8206 } 8207 phba->sli4_hba.nvmet_cqset[idx] = qdesc; 8208 } 8209 } 8210 8211 /* 8212 * Create Slow Path Completion Queues (CQs) 8213 */ 8214 8215 /* Create slow-path Mailbox Command Complete Queue */ 8216 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8217 phba->sli4_hba.cq_ecount); 8218 if (!qdesc) { 8219 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8220 "0500 Failed allocate slow-path mailbox CQ\n"); 8221 goto out_error; 8222 } 8223 phba->sli4_hba.mbx_cq = qdesc; 8224 8225 /* Create slow-path ELS Complete Queue */ 8226 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8227 phba->sli4_hba.cq_ecount); 8228 if (!qdesc) { 8229 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8230 "0501 Failed allocate slow-path ELS CQ\n"); 8231 goto out_error; 8232 } 8233 phba->sli4_hba.els_cq = qdesc; 8234 8235 8236 /* 8237 * Create Slow Path Work Queues (WQs) 8238 */ 8239 8240 /* Create Mailbox Command Queue */ 8241 8242 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 8243 phba->sli4_hba.mq_ecount); 8244 if (!qdesc) { 8245 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8246 "0505 Failed allocate slow-path MQ\n"); 8247 goto out_error; 8248 } 8249 phba->sli4_hba.mbx_wq = qdesc; 8250 8251 /* 8252 * Create ELS Work Queues 8253 */ 8254 8255 /* Create slow-path ELS Work Queue */ 8256 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 8257 phba->sli4_hba.wq_ecount); 8258 if (!qdesc) { 8259 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8260 "0504 Failed allocate slow-path ELS WQ\n"); 8261 goto out_error; 8262 } 8263 phba->sli4_hba.els_wq = qdesc; 8264 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8265 8266 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 8267 /* Create NVME LS Complete Queue */ 8268 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8269 phba->sli4_hba.cq_ecount); 8270 if (!qdesc) { 8271 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8272 "6079 Failed allocate NVME LS CQ\n"); 8273 goto out_error; 8274 } 8275 phba->sli4_hba.nvmels_cq = qdesc; 8276 8277 /* Create NVME LS Work Queue */ 8278 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 8279 phba->sli4_hba.wq_ecount); 8280 if (!qdesc) { 8281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8282 "6080 Failed allocate NVME LS WQ\n"); 8283 goto out_error; 8284 } 8285 phba->sli4_hba.nvmels_wq = qdesc; 8286 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8287 } 8288 8289 /* 8290 * Create Receive Queue (RQ) 8291 */ 8292 8293 /* Create Receive Queue for header */ 8294 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 8295 phba->sli4_hba.rq_ecount); 8296 if (!qdesc) { 8297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8298 "0506 Failed allocate receive HRQ\n"); 8299 goto out_error; 8300 } 8301 phba->sli4_hba.hdr_rq = qdesc; 8302 8303 /* Create Receive Queue for data */ 8304 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 8305 phba->sli4_hba.rq_ecount); 8306 if (!qdesc) { 8307 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8308 "0507 Failed allocate receive DRQ\n"); 8309 goto out_error; 8310 } 8311 phba->sli4_hba.dat_rq = qdesc; 8312 8313 if (phba->nvmet_support) { 8314 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8315 /* Create NVMET Receive Queue for header */ 8316 qdesc = lpfc_sli4_queue_alloc(phba, 8317 phba->sli4_hba.rq_esize, 8318 LPFC_NVMET_RQE_DEF_COUNT); 8319 if (!qdesc) { 8320 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8321 "3146 Failed allocate " 8322 "receive HRQ\n"); 8323 goto out_error; 8324 } 8325 phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc; 8326 8327 /* Only needed for header of RQ pair */ 8328 qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb), 8329 GFP_KERNEL); 8330 if (qdesc->rqbp == NULL) { 8331 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8332 "6131 Failed allocate " 8333 "Header RQBP\n"); 8334 goto out_error; 8335 } 8336 8337 /* Put list in known state in case driver load fails. */ 8338 INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list); 8339 8340 /* Create NVMET Receive Queue for data */ 8341 qdesc = lpfc_sli4_queue_alloc(phba, 8342 phba->sli4_hba.rq_esize, 8343 LPFC_NVMET_RQE_DEF_COUNT); 8344 if (!qdesc) { 8345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8346 "3156 Failed allocate " 8347 "receive DRQ\n"); 8348 goto out_error; 8349 } 8350 phba->sli4_hba.nvmet_mrq_data[idx] = qdesc; 8351 } 8352 } 8353 8354 /* Create the Queues needed for Flash Optimized Fabric operations */ 8355 if (phba->cfg_fof) 8356 lpfc_fof_queue_create(phba); 8357 return 0; 8358 8359 out_error: 8360 lpfc_sli4_queue_destroy(phba); 8361 return -ENOMEM; 8362 } 8363 8364 static inline void 8365 __lpfc_sli4_release_queue(struct lpfc_queue **qp) 8366 { 8367 if (*qp != NULL) { 8368 lpfc_sli4_queue_free(*qp); 8369 *qp = NULL; 8370 } 8371 } 8372 8373 static inline void 8374 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max) 8375 { 8376 int idx; 8377 8378 if (*qs == NULL) 8379 return; 8380 8381 for (idx = 0; idx < max; idx++) 8382 __lpfc_sli4_release_queue(&(*qs)[idx]); 8383 8384 kfree(*qs); 8385 *qs = NULL; 8386 } 8387 8388 static inline void 8389 lpfc_sli4_release_queue_map(uint16_t **qmap) 8390 { 8391 if (*qmap != NULL) { 8392 kfree(*qmap); 8393 *qmap = NULL; 8394 } 8395 } 8396 8397 /** 8398 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 8399 * @phba: pointer to lpfc hba data structure. 8400 * 8401 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 8402 * operation. 8403 * 8404 * Return codes 8405 * 0 - successful 8406 * -ENOMEM - No available memory 8407 * -EIO - The mailbox failed to complete successfully. 8408 **/ 8409 void 8410 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 8411 { 8412 if (phba->cfg_fof) 8413 lpfc_fof_queue_destroy(phba); 8414 8415 /* Release HBA eqs */ 8416 lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs); 8417 8418 /* Release FCP cqs */ 8419 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq, 8420 phba->cfg_fcp_io_channel); 8421 8422 /* Release FCP wqs */ 8423 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq, 8424 phba->cfg_fcp_io_channel); 8425 8426 /* Release FCP CQ mapping array */ 8427 lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map); 8428 8429 /* Release NVME cqs */ 8430 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq, 8431 phba->cfg_nvme_io_channel); 8432 8433 /* Release NVME wqs */ 8434 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq, 8435 phba->cfg_nvme_io_channel); 8436 8437 /* Release NVME CQ mapping array */ 8438 lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map); 8439 8440 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset, 8441 phba->cfg_nvmet_mrq); 8442 8443 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr, 8444 phba->cfg_nvmet_mrq); 8445 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data, 8446 phba->cfg_nvmet_mrq); 8447 8448 /* Release mailbox command work queue */ 8449 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq); 8450 8451 /* Release ELS work queue */ 8452 __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq); 8453 8454 /* Release ELS work queue */ 8455 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq); 8456 8457 /* Release unsolicited receive queue */ 8458 __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq); 8459 __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq); 8460 8461 /* Release ELS complete queue */ 8462 __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq); 8463 8464 /* Release NVME LS complete queue */ 8465 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq); 8466 8467 /* Release mailbox command complete queue */ 8468 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq); 8469 8470 /* Everything on this list has been freed */ 8471 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8472 } 8473 8474 int 8475 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq) 8476 { 8477 struct lpfc_rqb *rqbp; 8478 struct lpfc_dmabuf *h_buf; 8479 struct rqb_dmabuf *rqb_buffer; 8480 8481 rqbp = rq->rqbp; 8482 while (!list_empty(&rqbp->rqb_buffer_list)) { 8483 list_remove_head(&rqbp->rqb_buffer_list, h_buf, 8484 struct lpfc_dmabuf, list); 8485 8486 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf); 8487 (rqbp->rqb_free_buffer)(phba, rqb_buffer); 8488 rqbp->buffer_count--; 8489 } 8490 return 1; 8491 } 8492 8493 static int 8494 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq, 8495 struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map, 8496 int qidx, uint32_t qtype) 8497 { 8498 struct lpfc_sli_ring *pring; 8499 int rc; 8500 8501 if (!eq || !cq || !wq) { 8502 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8503 "6085 Fast-path %s (%d) not allocated\n", 8504 ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx); 8505 return -ENOMEM; 8506 } 8507 8508 /* create the Cq first */ 8509 rc = lpfc_cq_create(phba, cq, eq, 8510 (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype); 8511 if (rc) { 8512 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8513 "6086 Failed setup of CQ (%d), rc = 0x%x\n", 8514 qidx, (uint32_t)rc); 8515 return rc; 8516 } 8517 8518 if (qtype != LPFC_MBOX) { 8519 /* Setup nvme_cq_map for fast lookup */ 8520 if (cq_map) 8521 *cq_map = cq->queue_id; 8522 8523 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8524 "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n", 8525 qidx, cq->queue_id, qidx, eq->queue_id); 8526 8527 /* create the wq */ 8528 rc = lpfc_wq_create(phba, wq, cq, qtype); 8529 if (rc) { 8530 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8531 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n", 8532 qidx, (uint32_t)rc); 8533 /* no need to tear down cq - caller will do so */ 8534 return rc; 8535 } 8536 8537 /* Bind this CQ/WQ to the NVME ring */ 8538 pring = wq->pring; 8539 pring->sli.sli4.wqp = (void *)wq; 8540 cq->pring = pring; 8541 8542 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8543 "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n", 8544 qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id); 8545 } else { 8546 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX); 8547 if (rc) { 8548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8549 "0539 Failed setup of slow-path MQ: " 8550 "rc = 0x%x\n", rc); 8551 /* no need to tear down cq - caller will do so */ 8552 return rc; 8553 } 8554 8555 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8556 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 8557 phba->sli4_hba.mbx_wq->queue_id, 8558 phba->sli4_hba.mbx_cq->queue_id); 8559 } 8560 8561 return 0; 8562 } 8563 8564 /** 8565 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 8566 * @phba: pointer to lpfc hba data structure. 8567 * 8568 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 8569 * operation. 8570 * 8571 * Return codes 8572 * 0 - successful 8573 * -ENOMEM - No available memory 8574 * -EIO - The mailbox failed to complete successfully. 8575 **/ 8576 int 8577 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 8578 { 8579 uint32_t shdr_status, shdr_add_status; 8580 union lpfc_sli4_cfg_shdr *shdr; 8581 LPFC_MBOXQ_t *mboxq; 8582 int qidx; 8583 uint32_t length, io_channel; 8584 int rc = -ENOMEM; 8585 8586 /* Check for dual-ULP support */ 8587 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 8588 if (!mboxq) { 8589 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8590 "3249 Unable to allocate memory for " 8591 "QUERY_FW_CFG mailbox command\n"); 8592 return -ENOMEM; 8593 } 8594 length = (sizeof(struct lpfc_mbx_query_fw_config) - 8595 sizeof(struct lpfc_sli4_cfg_mhdr)); 8596 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8597 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 8598 length, LPFC_SLI4_MBX_EMBED); 8599 8600 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8601 8602 shdr = (union lpfc_sli4_cfg_shdr *) 8603 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 8604 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 8605 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 8606 if (shdr_status || shdr_add_status || rc) { 8607 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8608 "3250 QUERY_FW_CFG mailbox failed with status " 8609 "x%x add_status x%x, mbx status x%x\n", 8610 shdr_status, shdr_add_status, rc); 8611 if (rc != MBX_TIMEOUT) 8612 mempool_free(mboxq, phba->mbox_mem_pool); 8613 rc = -ENXIO; 8614 goto out_error; 8615 } 8616 8617 phba->sli4_hba.fw_func_mode = 8618 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; 8619 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; 8620 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; 8621 phba->sli4_hba.physical_port = 8622 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port; 8623 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8624 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " 8625 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, 8626 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); 8627 8628 if (rc != MBX_TIMEOUT) 8629 mempool_free(mboxq, phba->mbox_mem_pool); 8630 8631 /* 8632 * Set up HBA Event Queues (EQs) 8633 */ 8634 io_channel = phba->io_channel_irqs; 8635 8636 /* Set up HBA event queue */ 8637 if (io_channel && !phba->sli4_hba.hba_eq) { 8638 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8639 "3147 Fast-path EQs not allocated\n"); 8640 rc = -ENOMEM; 8641 goto out_error; 8642 } 8643 for (qidx = 0; qidx < io_channel; qidx++) { 8644 if (!phba->sli4_hba.hba_eq[qidx]) { 8645 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8646 "0522 Fast-path EQ (%d) not " 8647 "allocated\n", qidx); 8648 rc = -ENOMEM; 8649 goto out_destroy; 8650 } 8651 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx], 8652 phba->cfg_fcp_imax); 8653 if (rc) { 8654 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8655 "0523 Failed setup of fast-path EQ " 8656 "(%d), rc = 0x%x\n", qidx, 8657 (uint32_t)rc); 8658 goto out_destroy; 8659 } 8660 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8661 "2584 HBA EQ setup: queue[%d]-id=%d\n", 8662 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id); 8663 } 8664 8665 if (phba->cfg_nvme_io_channel) { 8666 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) { 8667 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8668 "6084 Fast-path NVME %s array not allocated\n", 8669 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ"); 8670 rc = -ENOMEM; 8671 goto out_destroy; 8672 } 8673 8674 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 8675 rc = lpfc_create_wq_cq(phba, 8676 phba->sli4_hba.hba_eq[ 8677 qidx % io_channel], 8678 phba->sli4_hba.nvme_cq[qidx], 8679 phba->sli4_hba.nvme_wq[qidx], 8680 &phba->sli4_hba.nvme_cq_map[qidx], 8681 qidx, LPFC_NVME); 8682 if (rc) { 8683 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8684 "6123 Failed to setup fastpath " 8685 "NVME WQ/CQ (%d), rc = 0x%x\n", 8686 qidx, (uint32_t)rc); 8687 goto out_destroy; 8688 } 8689 } 8690 } 8691 8692 if (phba->cfg_fcp_io_channel) { 8693 /* Set up fast-path FCP Response Complete Queue */ 8694 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) { 8695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8696 "3148 Fast-path FCP %s array not allocated\n", 8697 phba->sli4_hba.fcp_cq ? "WQ" : "CQ"); 8698 rc = -ENOMEM; 8699 goto out_destroy; 8700 } 8701 8702 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 8703 rc = lpfc_create_wq_cq(phba, 8704 phba->sli4_hba.hba_eq[ 8705 qidx % io_channel], 8706 phba->sli4_hba.fcp_cq[qidx], 8707 phba->sli4_hba.fcp_wq[qidx], 8708 &phba->sli4_hba.fcp_cq_map[qidx], 8709 qidx, LPFC_FCP); 8710 if (rc) { 8711 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8712 "0535 Failed to setup fastpath " 8713 "FCP WQ/CQ (%d), rc = 0x%x\n", 8714 qidx, (uint32_t)rc); 8715 goto out_destroy; 8716 } 8717 } 8718 } 8719 8720 /* 8721 * Set up Slow Path Complete Queues (CQs) 8722 */ 8723 8724 /* Set up slow-path MBOX CQ/MQ */ 8725 8726 if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) { 8727 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8728 "0528 %s not allocated\n", 8729 phba->sli4_hba.mbx_cq ? 8730 "Mailbox WQ" : "Mailbox CQ"); 8731 rc = -ENOMEM; 8732 goto out_destroy; 8733 } 8734 8735 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8736 phba->sli4_hba.mbx_cq, 8737 phba->sli4_hba.mbx_wq, 8738 NULL, 0, LPFC_MBOX); 8739 if (rc) { 8740 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8741 "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n", 8742 (uint32_t)rc); 8743 goto out_destroy; 8744 } 8745 if (phba->nvmet_support) { 8746 if (!phba->sli4_hba.nvmet_cqset) { 8747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8748 "3165 Fast-path NVME CQ Set " 8749 "array not allocated\n"); 8750 rc = -ENOMEM; 8751 goto out_destroy; 8752 } 8753 if (phba->cfg_nvmet_mrq > 1) { 8754 rc = lpfc_cq_create_set(phba, 8755 phba->sli4_hba.nvmet_cqset, 8756 phba->sli4_hba.hba_eq, 8757 LPFC_WCQ, LPFC_NVMET); 8758 if (rc) { 8759 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8760 "3164 Failed setup of NVME CQ " 8761 "Set, rc = 0x%x\n", 8762 (uint32_t)rc); 8763 goto out_destroy; 8764 } 8765 } else { 8766 /* Set up NVMET Receive Complete Queue */ 8767 rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0], 8768 phba->sli4_hba.hba_eq[0], 8769 LPFC_WCQ, LPFC_NVMET); 8770 if (rc) { 8771 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8772 "6089 Failed setup NVMET CQ: " 8773 "rc = 0x%x\n", (uint32_t)rc); 8774 goto out_destroy; 8775 } 8776 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8777 "6090 NVMET CQ setup: cq-id=%d, " 8778 "parent eq-id=%d\n", 8779 phba->sli4_hba.nvmet_cqset[0]->queue_id, 8780 phba->sli4_hba.hba_eq[0]->queue_id); 8781 } 8782 } 8783 8784 /* Set up slow-path ELS WQ/CQ */ 8785 if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) { 8786 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8787 "0530 ELS %s not allocated\n", 8788 phba->sli4_hba.els_cq ? "WQ" : "CQ"); 8789 rc = -ENOMEM; 8790 goto out_destroy; 8791 } 8792 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8793 phba->sli4_hba.els_cq, 8794 phba->sli4_hba.els_wq, 8795 NULL, 0, LPFC_ELS); 8796 if (rc) { 8797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8798 "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n", 8799 (uint32_t)rc); 8800 goto out_destroy; 8801 } 8802 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8803 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 8804 phba->sli4_hba.els_wq->queue_id, 8805 phba->sli4_hba.els_cq->queue_id); 8806 8807 if (phba->cfg_nvme_io_channel) { 8808 /* Set up NVME LS Complete Queue */ 8809 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) { 8810 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8811 "6091 LS %s not allocated\n", 8812 phba->sli4_hba.nvmels_cq ? "WQ" : "CQ"); 8813 rc = -ENOMEM; 8814 goto out_destroy; 8815 } 8816 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8817 phba->sli4_hba.nvmels_cq, 8818 phba->sli4_hba.nvmels_wq, 8819 NULL, 0, LPFC_NVME_LS); 8820 if (rc) { 8821 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8822 "0529 Failed setup of NVVME LS WQ/CQ: " 8823 "rc = 0x%x\n", (uint32_t)rc); 8824 goto out_destroy; 8825 } 8826 8827 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8828 "6096 ELS WQ setup: wq-id=%d, " 8829 "parent cq-id=%d\n", 8830 phba->sli4_hba.nvmels_wq->queue_id, 8831 phba->sli4_hba.nvmels_cq->queue_id); 8832 } 8833 8834 /* 8835 * Create NVMET Receive Queue (RQ) 8836 */ 8837 if (phba->nvmet_support) { 8838 if ((!phba->sli4_hba.nvmet_cqset) || 8839 (!phba->sli4_hba.nvmet_mrq_hdr) || 8840 (!phba->sli4_hba.nvmet_mrq_data)) { 8841 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8842 "6130 MRQ CQ Queues not " 8843 "allocated\n"); 8844 rc = -ENOMEM; 8845 goto out_destroy; 8846 } 8847 if (phba->cfg_nvmet_mrq > 1) { 8848 rc = lpfc_mrq_create(phba, 8849 phba->sli4_hba.nvmet_mrq_hdr, 8850 phba->sli4_hba.nvmet_mrq_data, 8851 phba->sli4_hba.nvmet_cqset, 8852 LPFC_NVMET); 8853 if (rc) { 8854 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8855 "6098 Failed setup of NVMET " 8856 "MRQ: rc = 0x%x\n", 8857 (uint32_t)rc); 8858 goto out_destroy; 8859 } 8860 8861 } else { 8862 rc = lpfc_rq_create(phba, 8863 phba->sli4_hba.nvmet_mrq_hdr[0], 8864 phba->sli4_hba.nvmet_mrq_data[0], 8865 phba->sli4_hba.nvmet_cqset[0], 8866 LPFC_NVMET); 8867 if (rc) { 8868 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8869 "6057 Failed setup of NVMET " 8870 "Receive Queue: rc = 0x%x\n", 8871 (uint32_t)rc); 8872 goto out_destroy; 8873 } 8874 8875 lpfc_printf_log( 8876 phba, KERN_INFO, LOG_INIT, 8877 "6099 NVMET RQ setup: hdr-rq-id=%d, " 8878 "dat-rq-id=%d parent cq-id=%d\n", 8879 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id, 8880 phba->sli4_hba.nvmet_mrq_data[0]->queue_id, 8881 phba->sli4_hba.nvmet_cqset[0]->queue_id); 8882 8883 } 8884 } 8885 8886 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 8887 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8888 "0540 Receive Queue not allocated\n"); 8889 rc = -ENOMEM; 8890 goto out_destroy; 8891 } 8892 8893 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 8894 phba->sli4_hba.els_cq, LPFC_USOL); 8895 if (rc) { 8896 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8897 "0541 Failed setup of Receive Queue: " 8898 "rc = 0x%x\n", (uint32_t)rc); 8899 goto out_destroy; 8900 } 8901 8902 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8903 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 8904 "parent cq-id=%d\n", 8905 phba->sli4_hba.hdr_rq->queue_id, 8906 phba->sli4_hba.dat_rq->queue_id, 8907 phba->sli4_hba.els_cq->queue_id); 8908 8909 if (phba->cfg_fof) { 8910 rc = lpfc_fof_queue_setup(phba); 8911 if (rc) { 8912 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8913 "0549 Failed setup of FOF Queues: " 8914 "rc = 0x%x\n", rc); 8915 goto out_destroy; 8916 } 8917 } 8918 8919 for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT) 8920 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT, 8921 phba->cfg_fcp_imax); 8922 8923 return 0; 8924 8925 out_destroy: 8926 lpfc_sli4_queue_unset(phba); 8927 out_error: 8928 return rc; 8929 } 8930 8931 /** 8932 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 8933 * @phba: pointer to lpfc hba data structure. 8934 * 8935 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 8936 * operation. 8937 * 8938 * Return codes 8939 * 0 - successful 8940 * -ENOMEM - No available memory 8941 * -EIO - The mailbox failed to complete successfully. 8942 **/ 8943 void 8944 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 8945 { 8946 int qidx; 8947 8948 /* Unset the queues created for Flash Optimized Fabric operations */ 8949 if (phba->cfg_fof) 8950 lpfc_fof_queue_destroy(phba); 8951 8952 /* Unset mailbox command work queue */ 8953 if (phba->sli4_hba.mbx_wq) 8954 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 8955 8956 /* Unset NVME LS work queue */ 8957 if (phba->sli4_hba.nvmels_wq) 8958 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq); 8959 8960 /* Unset ELS work queue */ 8961 if (phba->sli4_hba.els_wq) 8962 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 8963 8964 /* Unset unsolicited receive queue */ 8965 if (phba->sli4_hba.hdr_rq) 8966 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, 8967 phba->sli4_hba.dat_rq); 8968 8969 /* Unset FCP work queue */ 8970 if (phba->sli4_hba.fcp_wq) 8971 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 8972 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]); 8973 8974 /* Unset NVME work queue */ 8975 if (phba->sli4_hba.nvme_wq) { 8976 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 8977 lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]); 8978 } 8979 8980 /* Unset mailbox command complete queue */ 8981 if (phba->sli4_hba.mbx_cq) 8982 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 8983 8984 /* Unset ELS complete queue */ 8985 if (phba->sli4_hba.els_cq) 8986 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 8987 8988 /* Unset NVME LS complete queue */ 8989 if (phba->sli4_hba.nvmels_cq) 8990 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq); 8991 8992 /* Unset NVME response complete queue */ 8993 if (phba->sli4_hba.nvme_cq) 8994 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 8995 lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]); 8996 8997 /* Unset NVMET MRQ queue */ 8998 if (phba->sli4_hba.nvmet_mrq_hdr) { 8999 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 9000 lpfc_rq_destroy(phba, 9001 phba->sli4_hba.nvmet_mrq_hdr[qidx], 9002 phba->sli4_hba.nvmet_mrq_data[qidx]); 9003 } 9004 9005 /* Unset NVMET CQ Set complete queue */ 9006 if (phba->sli4_hba.nvmet_cqset) { 9007 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 9008 lpfc_cq_destroy(phba, 9009 phba->sli4_hba.nvmet_cqset[qidx]); 9010 } 9011 9012 /* Unset FCP response complete queue */ 9013 if (phba->sli4_hba.fcp_cq) 9014 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 9015 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]); 9016 9017 /* Unset fast-path event queue */ 9018 if (phba->sli4_hba.hba_eq) 9019 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) 9020 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]); 9021 } 9022 9023 /** 9024 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 9025 * @phba: pointer to lpfc hba data structure. 9026 * 9027 * This routine is invoked to allocate and set up a pool of completion queue 9028 * events. The body of the completion queue event is a completion queue entry 9029 * CQE. For now, this pool is used for the interrupt service routine to queue 9030 * the following HBA completion queue events for the worker thread to process: 9031 * - Mailbox asynchronous events 9032 * - Receive queue completion unsolicited events 9033 * Later, this can be used for all the slow-path events. 9034 * 9035 * Return codes 9036 * 0 - successful 9037 * -ENOMEM - No available memory 9038 **/ 9039 static int 9040 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 9041 { 9042 struct lpfc_cq_event *cq_event; 9043 int i; 9044 9045 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 9046 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 9047 if (!cq_event) 9048 goto out_pool_create_fail; 9049 list_add_tail(&cq_event->list, 9050 &phba->sli4_hba.sp_cqe_event_pool); 9051 } 9052 return 0; 9053 9054 out_pool_create_fail: 9055 lpfc_sli4_cq_event_pool_destroy(phba); 9056 return -ENOMEM; 9057 } 9058 9059 /** 9060 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 9061 * @phba: pointer to lpfc hba data structure. 9062 * 9063 * This routine is invoked to free the pool of completion queue events at 9064 * driver unload time. Note that, it is the responsibility of the driver 9065 * cleanup routine to free all the outstanding completion-queue events 9066 * allocated from this pool back into the pool before invoking this routine 9067 * to destroy the pool. 9068 **/ 9069 static void 9070 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 9071 { 9072 struct lpfc_cq_event *cq_event, *next_cq_event; 9073 9074 list_for_each_entry_safe(cq_event, next_cq_event, 9075 &phba->sli4_hba.sp_cqe_event_pool, list) { 9076 list_del(&cq_event->list); 9077 kfree(cq_event); 9078 } 9079 } 9080 9081 /** 9082 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 9083 * @phba: pointer to lpfc hba data structure. 9084 * 9085 * This routine is the lock free version of the API invoked to allocate a 9086 * completion-queue event from the free pool. 9087 * 9088 * Return: Pointer to the newly allocated completion-queue event if successful 9089 * NULL otherwise. 9090 **/ 9091 struct lpfc_cq_event * 9092 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9093 { 9094 struct lpfc_cq_event *cq_event = NULL; 9095 9096 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 9097 struct lpfc_cq_event, list); 9098 return cq_event; 9099 } 9100 9101 /** 9102 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 9103 * @phba: pointer to lpfc hba data structure. 9104 * 9105 * This routine is the lock version of the API invoked to allocate a 9106 * completion-queue event from the free pool. 9107 * 9108 * Return: Pointer to the newly allocated completion-queue event if successful 9109 * NULL otherwise. 9110 **/ 9111 struct lpfc_cq_event * 9112 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9113 { 9114 struct lpfc_cq_event *cq_event; 9115 unsigned long iflags; 9116 9117 spin_lock_irqsave(&phba->hbalock, iflags); 9118 cq_event = __lpfc_sli4_cq_event_alloc(phba); 9119 spin_unlock_irqrestore(&phba->hbalock, iflags); 9120 return cq_event; 9121 } 9122 9123 /** 9124 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9125 * @phba: pointer to lpfc hba data structure. 9126 * @cq_event: pointer to the completion queue event to be freed. 9127 * 9128 * This routine is the lock free version of the API invoked to release a 9129 * completion-queue event back into the free pool. 9130 **/ 9131 void 9132 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9133 struct lpfc_cq_event *cq_event) 9134 { 9135 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 9136 } 9137 9138 /** 9139 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9140 * @phba: pointer to lpfc hba data structure. 9141 * @cq_event: pointer to the completion queue event to be freed. 9142 * 9143 * This routine is the lock version of the API invoked to release a 9144 * completion-queue event back into the free pool. 9145 **/ 9146 void 9147 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9148 struct lpfc_cq_event *cq_event) 9149 { 9150 unsigned long iflags; 9151 spin_lock_irqsave(&phba->hbalock, iflags); 9152 __lpfc_sli4_cq_event_release(phba, cq_event); 9153 spin_unlock_irqrestore(&phba->hbalock, iflags); 9154 } 9155 9156 /** 9157 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 9158 * @phba: pointer to lpfc hba data structure. 9159 * 9160 * This routine is to free all the pending completion-queue events to the 9161 * back into the free pool for device reset. 9162 **/ 9163 static void 9164 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 9165 { 9166 LIST_HEAD(cqelist); 9167 struct lpfc_cq_event *cqe; 9168 unsigned long iflags; 9169 9170 /* Retrieve all the pending WCQEs from pending WCQE lists */ 9171 spin_lock_irqsave(&phba->hbalock, iflags); 9172 /* Pending FCP XRI abort events */ 9173 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 9174 &cqelist); 9175 /* Pending ELS XRI abort events */ 9176 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 9177 &cqelist); 9178 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 9179 /* Pending NVME XRI abort events */ 9180 list_splice_init(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue, 9181 &cqelist); 9182 } 9183 /* Pending asynnc events */ 9184 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 9185 &cqelist); 9186 spin_unlock_irqrestore(&phba->hbalock, iflags); 9187 9188 while (!list_empty(&cqelist)) { 9189 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 9190 lpfc_sli4_cq_event_release(phba, cqe); 9191 } 9192 } 9193 9194 /** 9195 * lpfc_pci_function_reset - Reset pci function. 9196 * @phba: pointer to lpfc hba data structure. 9197 * 9198 * This routine is invoked to request a PCI function reset. It will destroys 9199 * all resources assigned to the PCI function which originates this request. 9200 * 9201 * Return codes 9202 * 0 - successful 9203 * -ENOMEM - No available memory 9204 * -EIO - The mailbox failed to complete successfully. 9205 **/ 9206 int 9207 lpfc_pci_function_reset(struct lpfc_hba *phba) 9208 { 9209 LPFC_MBOXQ_t *mboxq; 9210 uint32_t rc = 0, if_type; 9211 uint32_t shdr_status, shdr_add_status; 9212 uint32_t rdy_chk; 9213 uint32_t port_reset = 0; 9214 union lpfc_sli4_cfg_shdr *shdr; 9215 struct lpfc_register reg_data; 9216 uint16_t devid; 9217 9218 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9219 switch (if_type) { 9220 case LPFC_SLI_INTF_IF_TYPE_0: 9221 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 9222 GFP_KERNEL); 9223 if (!mboxq) { 9224 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9225 "0494 Unable to allocate memory for " 9226 "issuing SLI_FUNCTION_RESET mailbox " 9227 "command\n"); 9228 return -ENOMEM; 9229 } 9230 9231 /* Setup PCI function reset mailbox-ioctl command */ 9232 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 9233 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 9234 LPFC_SLI4_MBX_EMBED); 9235 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9236 shdr = (union lpfc_sli4_cfg_shdr *) 9237 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 9238 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 9239 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 9240 &shdr->response); 9241 if (rc != MBX_TIMEOUT) 9242 mempool_free(mboxq, phba->mbox_mem_pool); 9243 if (shdr_status || shdr_add_status || rc) { 9244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9245 "0495 SLI_FUNCTION_RESET mailbox " 9246 "failed with status x%x add_status x%x," 9247 " mbx status x%x\n", 9248 shdr_status, shdr_add_status, rc); 9249 rc = -ENXIO; 9250 } 9251 break; 9252 case LPFC_SLI_INTF_IF_TYPE_2: 9253 wait: 9254 /* 9255 * Poll the Port Status Register and wait for RDY for 9256 * up to 30 seconds. If the port doesn't respond, treat 9257 * it as an error. 9258 */ 9259 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) { 9260 if (lpfc_readl(phba->sli4_hba.u.if_type2. 9261 STATUSregaddr, ®_data.word0)) { 9262 rc = -ENODEV; 9263 goto out; 9264 } 9265 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 9266 break; 9267 msleep(20); 9268 } 9269 9270 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) { 9271 phba->work_status[0] = readl( 9272 phba->sli4_hba.u.if_type2.ERR1regaddr); 9273 phba->work_status[1] = readl( 9274 phba->sli4_hba.u.if_type2.ERR2regaddr); 9275 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9276 "2890 Port not ready, port status reg " 9277 "0x%x error 1=0x%x, error 2=0x%x\n", 9278 reg_data.word0, 9279 phba->work_status[0], 9280 phba->work_status[1]); 9281 rc = -ENODEV; 9282 goto out; 9283 } 9284 9285 if (!port_reset) { 9286 /* 9287 * Reset the port now 9288 */ 9289 reg_data.word0 = 0; 9290 bf_set(lpfc_sliport_ctrl_end, ®_data, 9291 LPFC_SLIPORT_LITTLE_ENDIAN); 9292 bf_set(lpfc_sliport_ctrl_ip, ®_data, 9293 LPFC_SLIPORT_INIT_PORT); 9294 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 9295 CTRLregaddr); 9296 /* flush */ 9297 pci_read_config_word(phba->pcidev, 9298 PCI_DEVICE_ID, &devid); 9299 9300 port_reset = 1; 9301 msleep(20); 9302 goto wait; 9303 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) { 9304 rc = -ENODEV; 9305 goto out; 9306 } 9307 break; 9308 9309 case LPFC_SLI_INTF_IF_TYPE_1: 9310 default: 9311 break; 9312 } 9313 9314 out: 9315 /* Catch the not-ready port failure after a port reset. */ 9316 if (rc) { 9317 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9318 "3317 HBA not functional: IP Reset Failed " 9319 "try: echo fw_reset > board_mode\n"); 9320 rc = -ENODEV; 9321 } 9322 9323 return rc; 9324 } 9325 9326 /** 9327 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 9328 * @phba: pointer to lpfc hba data structure. 9329 * 9330 * This routine is invoked to set up the PCI device memory space for device 9331 * with SLI-4 interface spec. 9332 * 9333 * Return codes 9334 * 0 - successful 9335 * other values - error 9336 **/ 9337 static int 9338 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 9339 { 9340 struct pci_dev *pdev; 9341 unsigned long bar0map_len, bar1map_len, bar2map_len; 9342 int error = -ENODEV; 9343 uint32_t if_type; 9344 9345 /* Obtain PCI device reference */ 9346 if (!phba->pcidev) 9347 return error; 9348 else 9349 pdev = phba->pcidev; 9350 9351 /* Set the device DMA mask size */ 9352 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 9353 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 9354 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 9355 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 9356 return error; 9357 } 9358 } 9359 9360 /* 9361 * The BARs and register set definitions and offset locations are 9362 * dependent on the if_type. 9363 */ 9364 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 9365 &phba->sli4_hba.sli_intf.word0)) { 9366 return error; 9367 } 9368 9369 /* There is no SLI3 failback for SLI4 devices. */ 9370 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 9371 LPFC_SLI_INTF_VALID) { 9372 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9373 "2894 SLI_INTF reg contents invalid " 9374 "sli_intf reg 0x%x\n", 9375 phba->sli4_hba.sli_intf.word0); 9376 return error; 9377 } 9378 9379 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9380 /* 9381 * Get the bus address of SLI4 device Bar regions and the 9382 * number of bytes required by each mapping. The mapping of the 9383 * particular PCI BARs regions is dependent on the type of 9384 * SLI4 device. 9385 */ 9386 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) { 9387 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0); 9388 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0); 9389 9390 /* 9391 * Map SLI4 PCI Config Space Register base to a kernel virtual 9392 * addr 9393 */ 9394 phba->sli4_hba.conf_regs_memmap_p = 9395 ioremap(phba->pci_bar0_map, bar0map_len); 9396 if (!phba->sli4_hba.conf_regs_memmap_p) { 9397 dev_printk(KERN_ERR, &pdev->dev, 9398 "ioremap failed for SLI4 PCI config " 9399 "registers.\n"); 9400 goto out; 9401 } 9402 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p; 9403 /* Set up BAR0 PCI config space register memory map */ 9404 lpfc_sli4_bar0_register_memmap(phba, if_type); 9405 } else { 9406 phba->pci_bar0_map = pci_resource_start(pdev, 1); 9407 bar0map_len = pci_resource_len(pdev, 1); 9408 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 9409 dev_printk(KERN_ERR, &pdev->dev, 9410 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 9411 goto out; 9412 } 9413 phba->sli4_hba.conf_regs_memmap_p = 9414 ioremap(phba->pci_bar0_map, bar0map_len); 9415 if (!phba->sli4_hba.conf_regs_memmap_p) { 9416 dev_printk(KERN_ERR, &pdev->dev, 9417 "ioremap failed for SLI4 PCI config " 9418 "registers.\n"); 9419 goto out; 9420 } 9421 lpfc_sli4_bar0_register_memmap(phba, if_type); 9422 } 9423 9424 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 9425 (pci_resource_start(pdev, PCI_64BIT_BAR2))) { 9426 /* 9427 * Map SLI4 if type 0 HBA Control Register base to a kernel 9428 * virtual address and setup the registers. 9429 */ 9430 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2); 9431 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); 9432 phba->sli4_hba.ctrl_regs_memmap_p = 9433 ioremap(phba->pci_bar1_map, bar1map_len); 9434 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 9435 dev_printk(KERN_ERR, &pdev->dev, 9436 "ioremap failed for SLI4 HBA control registers.\n"); 9437 goto out_iounmap_conf; 9438 } 9439 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p; 9440 lpfc_sli4_bar1_register_memmap(phba); 9441 } 9442 9443 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 9444 (pci_resource_start(pdev, PCI_64BIT_BAR4))) { 9445 /* 9446 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 9447 * virtual address and setup the registers. 9448 */ 9449 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4); 9450 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); 9451 phba->sli4_hba.drbl_regs_memmap_p = 9452 ioremap(phba->pci_bar2_map, bar2map_len); 9453 if (!phba->sli4_hba.drbl_regs_memmap_p) { 9454 dev_printk(KERN_ERR, &pdev->dev, 9455 "ioremap failed for SLI4 HBA doorbell registers.\n"); 9456 goto out_iounmap_ctrl; 9457 } 9458 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p; 9459 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 9460 if (error) 9461 goto out_iounmap_all; 9462 } 9463 9464 return 0; 9465 9466 out_iounmap_all: 9467 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9468 out_iounmap_ctrl: 9469 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9470 out_iounmap_conf: 9471 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9472 out: 9473 return error; 9474 } 9475 9476 /** 9477 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 9478 * @phba: pointer to lpfc hba data structure. 9479 * 9480 * This routine is invoked to unset the PCI device memory space for device 9481 * with SLI-4 interface spec. 9482 **/ 9483 static void 9484 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 9485 { 9486 uint32_t if_type; 9487 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9488 9489 switch (if_type) { 9490 case LPFC_SLI_INTF_IF_TYPE_0: 9491 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9492 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9493 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9494 break; 9495 case LPFC_SLI_INTF_IF_TYPE_2: 9496 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9497 break; 9498 case LPFC_SLI_INTF_IF_TYPE_1: 9499 default: 9500 dev_printk(KERN_ERR, &phba->pcidev->dev, 9501 "FATAL - unsupported SLI4 interface type - %d\n", 9502 if_type); 9503 break; 9504 } 9505 } 9506 9507 /** 9508 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 9509 * @phba: pointer to lpfc hba data structure. 9510 * 9511 * This routine is invoked to enable the MSI-X interrupt vectors to device 9512 * with SLI-3 interface specs. 9513 * 9514 * Return codes 9515 * 0 - successful 9516 * other values - error 9517 **/ 9518 static int 9519 lpfc_sli_enable_msix(struct lpfc_hba *phba) 9520 { 9521 int rc; 9522 LPFC_MBOXQ_t *pmb; 9523 9524 /* Set up MSI-X multi-message vectors */ 9525 rc = pci_alloc_irq_vectors(phba->pcidev, 9526 LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX); 9527 if (rc < 0) { 9528 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9529 "0420 PCI enable MSI-X failed (%d)\n", rc); 9530 goto vec_fail_out; 9531 } 9532 9533 /* 9534 * Assign MSI-X vectors to interrupt handlers 9535 */ 9536 9537 /* vector-0 is associated to slow-path handler */ 9538 rc = request_irq(pci_irq_vector(phba->pcidev, 0), 9539 &lpfc_sli_sp_intr_handler, 0, 9540 LPFC_SP_DRIVER_HANDLER_NAME, phba); 9541 if (rc) { 9542 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9543 "0421 MSI-X slow-path request_irq failed " 9544 "(%d)\n", rc); 9545 goto msi_fail_out; 9546 } 9547 9548 /* vector-1 is associated to fast-path handler */ 9549 rc = request_irq(pci_irq_vector(phba->pcidev, 1), 9550 &lpfc_sli_fp_intr_handler, 0, 9551 LPFC_FP_DRIVER_HANDLER_NAME, phba); 9552 9553 if (rc) { 9554 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9555 "0429 MSI-X fast-path request_irq failed " 9556 "(%d)\n", rc); 9557 goto irq_fail_out; 9558 } 9559 9560 /* 9561 * Configure HBA MSI-X attention conditions to messages 9562 */ 9563 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 9564 9565 if (!pmb) { 9566 rc = -ENOMEM; 9567 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9568 "0474 Unable to allocate memory for issuing " 9569 "MBOX_CONFIG_MSI command\n"); 9570 goto mem_fail_out; 9571 } 9572 rc = lpfc_config_msi(phba, pmb); 9573 if (rc) 9574 goto mbx_fail_out; 9575 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 9576 if (rc != MBX_SUCCESS) { 9577 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 9578 "0351 Config MSI mailbox command failed, " 9579 "mbxCmd x%x, mbxStatus x%x\n", 9580 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 9581 goto mbx_fail_out; 9582 } 9583 9584 /* Free memory allocated for mailbox command */ 9585 mempool_free(pmb, phba->mbox_mem_pool); 9586 return rc; 9587 9588 mbx_fail_out: 9589 /* Free memory allocated for mailbox command */ 9590 mempool_free(pmb, phba->mbox_mem_pool); 9591 9592 mem_fail_out: 9593 /* free the irq already requested */ 9594 free_irq(pci_irq_vector(phba->pcidev, 1), phba); 9595 9596 irq_fail_out: 9597 /* free the irq already requested */ 9598 free_irq(pci_irq_vector(phba->pcidev, 0), phba); 9599 9600 msi_fail_out: 9601 /* Unconfigure MSI-X capability structure */ 9602 pci_free_irq_vectors(phba->pcidev); 9603 9604 vec_fail_out: 9605 return rc; 9606 } 9607 9608 /** 9609 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 9610 * @phba: pointer to lpfc hba data structure. 9611 * 9612 * This routine is invoked to enable the MSI interrupt mode to device with 9613 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 9614 * enable the MSI vector. The device driver is responsible for calling the 9615 * request_irq() to register MSI vector with a interrupt the handler, which 9616 * is done in this function. 9617 * 9618 * Return codes 9619 * 0 - successful 9620 * other values - error 9621 */ 9622 static int 9623 lpfc_sli_enable_msi(struct lpfc_hba *phba) 9624 { 9625 int rc; 9626 9627 rc = pci_enable_msi(phba->pcidev); 9628 if (!rc) 9629 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9630 "0462 PCI enable MSI mode success.\n"); 9631 else { 9632 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9633 "0471 PCI enable MSI mode failed (%d)\n", rc); 9634 return rc; 9635 } 9636 9637 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9638 0, LPFC_DRIVER_NAME, phba); 9639 if (rc) { 9640 pci_disable_msi(phba->pcidev); 9641 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9642 "0478 MSI request_irq failed (%d)\n", rc); 9643 } 9644 return rc; 9645 } 9646 9647 /** 9648 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 9649 * @phba: pointer to lpfc hba data structure. 9650 * 9651 * This routine is invoked to enable device interrupt and associate driver's 9652 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 9653 * spec. Depends on the interrupt mode configured to the driver, the driver 9654 * will try to fallback from the configured interrupt mode to an interrupt 9655 * mode which is supported by the platform, kernel, and device in the order 9656 * of: 9657 * MSI-X -> MSI -> IRQ. 9658 * 9659 * Return codes 9660 * 0 - successful 9661 * other values - error 9662 **/ 9663 static uint32_t 9664 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9665 { 9666 uint32_t intr_mode = LPFC_INTR_ERROR; 9667 int retval; 9668 9669 if (cfg_mode == 2) { 9670 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 9671 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 9672 if (!retval) { 9673 /* Now, try to enable MSI-X interrupt mode */ 9674 retval = lpfc_sli_enable_msix(phba); 9675 if (!retval) { 9676 /* Indicate initialization to MSI-X mode */ 9677 phba->intr_type = MSIX; 9678 intr_mode = 2; 9679 } 9680 } 9681 } 9682 9683 /* Fallback to MSI if MSI-X initialization failed */ 9684 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9685 retval = lpfc_sli_enable_msi(phba); 9686 if (!retval) { 9687 /* Indicate initialization to MSI mode */ 9688 phba->intr_type = MSI; 9689 intr_mode = 1; 9690 } 9691 } 9692 9693 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9694 if (phba->intr_type == NONE) { 9695 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9696 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9697 if (!retval) { 9698 /* Indicate initialization to INTx mode */ 9699 phba->intr_type = INTx; 9700 intr_mode = 0; 9701 } 9702 } 9703 return intr_mode; 9704 } 9705 9706 /** 9707 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 9708 * @phba: pointer to lpfc hba data structure. 9709 * 9710 * This routine is invoked to disable device interrupt and disassociate the 9711 * driver's interrupt handler(s) from interrupt vector(s) to device with 9712 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 9713 * release the interrupt vector(s) for the message signaled interrupt. 9714 **/ 9715 static void 9716 lpfc_sli_disable_intr(struct lpfc_hba *phba) 9717 { 9718 int nr_irqs, i; 9719 9720 if (phba->intr_type == MSIX) 9721 nr_irqs = LPFC_MSIX_VECTORS; 9722 else 9723 nr_irqs = 1; 9724 9725 for (i = 0; i < nr_irqs; i++) 9726 free_irq(pci_irq_vector(phba->pcidev, i), phba); 9727 pci_free_irq_vectors(phba->pcidev); 9728 9729 /* Reset interrupt management states */ 9730 phba->intr_type = NONE; 9731 phba->sli.slistat.sli_intr = 0; 9732 } 9733 9734 /** 9735 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings 9736 * @phba: pointer to lpfc hba data structure. 9737 * @vectors: number of msix vectors allocated. 9738 * 9739 * The routine will figure out the CPU affinity assignment for every 9740 * MSI-X vector allocated for the HBA. The hba_eq_hdl will be updated 9741 * with a pointer to the CPU mask that defines ALL the CPUs this vector 9742 * can be associated with. If the vector can be unquely associated with 9743 * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu. 9744 * In addition, the CPU to IO channel mapping will be calculated 9745 * and the phba->sli4_hba.cpu_map array will reflect this. 9746 */ 9747 static void 9748 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors) 9749 { 9750 struct lpfc_vector_map_info *cpup; 9751 int index = 0; 9752 int vec = 0; 9753 int cpu; 9754 #ifdef CONFIG_X86 9755 struct cpuinfo_x86 *cpuinfo; 9756 #endif 9757 9758 /* Init cpu_map array */ 9759 memset(phba->sli4_hba.cpu_map, 0xff, 9760 (sizeof(struct lpfc_vector_map_info) * 9761 phba->sli4_hba.num_present_cpu)); 9762 9763 /* Update CPU map with physical id and core id of each CPU */ 9764 cpup = phba->sli4_hba.cpu_map; 9765 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 9766 #ifdef CONFIG_X86 9767 cpuinfo = &cpu_data(cpu); 9768 cpup->phys_id = cpuinfo->phys_proc_id; 9769 cpup->core_id = cpuinfo->cpu_core_id; 9770 #else 9771 /* No distinction between CPUs for other platforms */ 9772 cpup->phys_id = 0; 9773 cpup->core_id = 0; 9774 #endif 9775 cpup->channel_id = index; /* For now round robin */ 9776 cpup->irq = pci_irq_vector(phba->pcidev, vec); 9777 vec++; 9778 if (vec >= vectors) 9779 vec = 0; 9780 index++; 9781 if (index >= phba->cfg_fcp_io_channel) 9782 index = 0; 9783 cpup++; 9784 } 9785 } 9786 9787 9788 /** 9789 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 9790 * @phba: pointer to lpfc hba data structure. 9791 * 9792 * This routine is invoked to enable the MSI-X interrupt vectors to device 9793 * with SLI-4 interface spec. 9794 * 9795 * Return codes 9796 * 0 - successful 9797 * other values - error 9798 **/ 9799 static int 9800 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 9801 { 9802 int vectors, rc, index; 9803 char *name; 9804 9805 /* Set up MSI-X multi-message vectors */ 9806 vectors = phba->io_channel_irqs; 9807 if (phba->cfg_fof) 9808 vectors++; 9809 9810 rc = pci_alloc_irq_vectors(phba->pcidev, 9811 (phba->nvmet_support) ? 1 : 2, 9812 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); 9813 if (rc < 0) { 9814 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9815 "0484 PCI enable MSI-X failed (%d)\n", rc); 9816 goto vec_fail_out; 9817 } 9818 vectors = rc; 9819 9820 /* Assign MSI-X vectors to interrupt handlers */ 9821 for (index = 0; index < vectors; index++) { 9822 name = phba->sli4_hba.hba_eq_hdl[index].handler_name; 9823 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ); 9824 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ, 9825 LPFC_DRIVER_HANDLER_NAME"%d", index); 9826 9827 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9828 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9829 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1); 9830 if (phba->cfg_fof && (index == (vectors - 1))) 9831 rc = request_irq(pci_irq_vector(phba->pcidev, index), 9832 &lpfc_sli4_fof_intr_handler, 0, 9833 name, 9834 &phba->sli4_hba.hba_eq_hdl[index]); 9835 else 9836 rc = request_irq(pci_irq_vector(phba->pcidev, index), 9837 &lpfc_sli4_hba_intr_handler, 0, 9838 name, 9839 &phba->sli4_hba.hba_eq_hdl[index]); 9840 if (rc) { 9841 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9842 "0486 MSI-X fast-path (%d) " 9843 "request_irq failed (%d)\n", index, rc); 9844 goto cfg_fail_out; 9845 } 9846 } 9847 9848 if (phba->cfg_fof) 9849 vectors--; 9850 9851 if (vectors != phba->io_channel_irqs) { 9852 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9853 "3238 Reducing IO channels to match number of " 9854 "MSI-X vectors, requested %d got %d\n", 9855 phba->io_channel_irqs, vectors); 9856 if (phba->cfg_fcp_io_channel > vectors) 9857 phba->cfg_fcp_io_channel = vectors; 9858 if (phba->cfg_nvme_io_channel > vectors) 9859 phba->cfg_nvme_io_channel = vectors; 9860 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) 9861 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 9862 else 9863 phba->io_channel_irqs = phba->cfg_nvme_io_channel; 9864 } 9865 lpfc_cpu_affinity_check(phba, vectors); 9866 9867 return rc; 9868 9869 cfg_fail_out: 9870 /* free the irq already requested */ 9871 for (--index; index >= 0; index--) 9872 free_irq(pci_irq_vector(phba->pcidev, index), 9873 &phba->sli4_hba.hba_eq_hdl[index]); 9874 9875 /* Unconfigure MSI-X capability structure */ 9876 pci_free_irq_vectors(phba->pcidev); 9877 9878 vec_fail_out: 9879 return rc; 9880 } 9881 9882 /** 9883 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 9884 * @phba: pointer to lpfc hba data structure. 9885 * 9886 * This routine is invoked to enable the MSI interrupt mode to device with 9887 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 9888 * to enable the MSI vector. The device driver is responsible for calling 9889 * the request_irq() to register MSI vector with a interrupt the handler, 9890 * which is done in this function. 9891 * 9892 * Return codes 9893 * 0 - successful 9894 * other values - error 9895 **/ 9896 static int 9897 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 9898 { 9899 int rc, index; 9900 9901 rc = pci_enable_msi(phba->pcidev); 9902 if (!rc) 9903 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9904 "0487 PCI enable MSI mode success.\n"); 9905 else { 9906 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9907 "0488 PCI enable MSI mode failed (%d)\n", rc); 9908 return rc; 9909 } 9910 9911 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9912 0, LPFC_DRIVER_NAME, phba); 9913 if (rc) { 9914 pci_disable_msi(phba->pcidev); 9915 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9916 "0490 MSI request_irq failed (%d)\n", rc); 9917 return rc; 9918 } 9919 9920 for (index = 0; index < phba->io_channel_irqs; index++) { 9921 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9922 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9923 } 9924 9925 if (phba->cfg_fof) { 9926 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9927 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9928 } 9929 return 0; 9930 } 9931 9932 /** 9933 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 9934 * @phba: pointer to lpfc hba data structure. 9935 * 9936 * This routine is invoked to enable device interrupt and associate driver's 9937 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 9938 * interface spec. Depends on the interrupt mode configured to the driver, 9939 * the driver will try to fallback from the configured interrupt mode to an 9940 * interrupt mode which is supported by the platform, kernel, and device in 9941 * the order of: 9942 * MSI-X -> MSI -> IRQ. 9943 * 9944 * Return codes 9945 * 0 - successful 9946 * other values - error 9947 **/ 9948 static uint32_t 9949 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9950 { 9951 uint32_t intr_mode = LPFC_INTR_ERROR; 9952 int retval, idx; 9953 9954 if (cfg_mode == 2) { 9955 /* Preparation before conf_msi mbox cmd */ 9956 retval = 0; 9957 if (!retval) { 9958 /* Now, try to enable MSI-X interrupt mode */ 9959 retval = lpfc_sli4_enable_msix(phba); 9960 if (!retval) { 9961 /* Indicate initialization to MSI-X mode */ 9962 phba->intr_type = MSIX; 9963 intr_mode = 2; 9964 } 9965 } 9966 } 9967 9968 /* Fallback to MSI if MSI-X initialization failed */ 9969 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9970 retval = lpfc_sli4_enable_msi(phba); 9971 if (!retval) { 9972 /* Indicate initialization to MSI mode */ 9973 phba->intr_type = MSI; 9974 intr_mode = 1; 9975 } 9976 } 9977 9978 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9979 if (phba->intr_type == NONE) { 9980 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9981 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9982 if (!retval) { 9983 struct lpfc_hba_eq_hdl *eqhdl; 9984 9985 /* Indicate initialization to INTx mode */ 9986 phba->intr_type = INTx; 9987 intr_mode = 0; 9988 9989 for (idx = 0; idx < phba->io_channel_irqs; idx++) { 9990 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 9991 eqhdl->idx = idx; 9992 eqhdl->phba = phba; 9993 atomic_set(&eqhdl->hba_eq_in_use, 1); 9994 } 9995 if (phba->cfg_fof) { 9996 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 9997 eqhdl->idx = idx; 9998 eqhdl->phba = phba; 9999 atomic_set(&eqhdl->hba_eq_in_use, 1); 10000 } 10001 } 10002 } 10003 return intr_mode; 10004 } 10005 10006 /** 10007 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 10008 * @phba: pointer to lpfc hba data structure. 10009 * 10010 * This routine is invoked to disable device interrupt and disassociate 10011 * the driver's interrupt handler(s) from interrupt vector(s) to device 10012 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 10013 * will release the interrupt vector(s) for the message signaled interrupt. 10014 **/ 10015 static void 10016 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 10017 { 10018 /* Disable the currently initialized interrupt mode */ 10019 if (phba->intr_type == MSIX) { 10020 int index; 10021 10022 /* Free up MSI-X multi-message vectors */ 10023 for (index = 0; index < phba->io_channel_irqs; index++) 10024 free_irq(pci_irq_vector(phba->pcidev, index), 10025 &phba->sli4_hba.hba_eq_hdl[index]); 10026 10027 if (phba->cfg_fof) 10028 free_irq(pci_irq_vector(phba->pcidev, index), 10029 &phba->sli4_hba.hba_eq_hdl[index]); 10030 } else { 10031 free_irq(phba->pcidev->irq, phba); 10032 } 10033 10034 pci_free_irq_vectors(phba->pcidev); 10035 10036 /* Reset interrupt management states */ 10037 phba->intr_type = NONE; 10038 phba->sli.slistat.sli_intr = 0; 10039 } 10040 10041 /** 10042 * lpfc_unset_hba - Unset SLI3 hba device initialization 10043 * @phba: pointer to lpfc hba data structure. 10044 * 10045 * This routine is invoked to unset the HBA device initialization steps to 10046 * a device with SLI-3 interface spec. 10047 **/ 10048 static void 10049 lpfc_unset_hba(struct lpfc_hba *phba) 10050 { 10051 struct lpfc_vport *vport = phba->pport; 10052 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 10053 10054 spin_lock_irq(shost->host_lock); 10055 vport->load_flag |= FC_UNLOADING; 10056 spin_unlock_irq(shost->host_lock); 10057 10058 kfree(phba->vpi_bmask); 10059 kfree(phba->vpi_ids); 10060 10061 lpfc_stop_hba_timers(phba); 10062 10063 phba->pport->work_port_events = 0; 10064 10065 lpfc_sli_hba_down(phba); 10066 10067 lpfc_sli_brdrestart(phba); 10068 10069 lpfc_sli_disable_intr(phba); 10070 10071 return; 10072 } 10073 10074 /** 10075 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 10076 * @phba: Pointer to HBA context object. 10077 * 10078 * This function is called in the SLI4 code path to wait for completion 10079 * of device's XRIs exchange busy. It will check the XRI exchange busy 10080 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 10081 * that, it will check the XRI exchange busy on outstanding FCP and ELS 10082 * I/Os every 30 seconds, log error message, and wait forever. Only when 10083 * all XRI exchange busy complete, the driver unload shall proceed with 10084 * invoking the function reset ioctl mailbox command to the CNA and the 10085 * the rest of the driver unload resource release. 10086 **/ 10087 static void 10088 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 10089 { 10090 int wait_time = 0; 10091 int nvme_xri_cmpl = 1; 10092 int nvmet_xri_cmpl = 1; 10093 int fcp_xri_cmpl = 1; 10094 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 10095 10096 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 10097 fcp_xri_cmpl = 10098 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 10099 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 10100 nvme_xri_cmpl = 10101 list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 10102 nvmet_xri_cmpl = 10103 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 10104 } 10105 10106 while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl || 10107 !nvmet_xri_cmpl) { 10108 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 10109 if (!nvme_xri_cmpl) 10110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10111 "6100 NVME XRI exchange busy " 10112 "wait time: %d seconds.\n", 10113 wait_time/1000); 10114 if (!fcp_xri_cmpl) 10115 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10116 "2877 FCP XRI exchange busy " 10117 "wait time: %d seconds.\n", 10118 wait_time/1000); 10119 if (!els_xri_cmpl) 10120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10121 "2878 ELS XRI exchange busy " 10122 "wait time: %d seconds.\n", 10123 wait_time/1000); 10124 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 10125 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 10126 } else { 10127 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 10128 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 10129 } 10130 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 10131 nvme_xri_cmpl = list_empty( 10132 &phba->sli4_hba.lpfc_abts_nvme_buf_list); 10133 nvmet_xri_cmpl = list_empty( 10134 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 10135 } 10136 10137 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 10138 fcp_xri_cmpl = list_empty( 10139 &phba->sli4_hba.lpfc_abts_scsi_buf_list); 10140 10141 els_xri_cmpl = 10142 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 10143 10144 } 10145 } 10146 10147 /** 10148 * lpfc_sli4_hba_unset - Unset the fcoe hba 10149 * @phba: Pointer to HBA context object. 10150 * 10151 * This function is called in the SLI4 code path to reset the HBA's FCoE 10152 * function. The caller is not required to hold any lock. This routine 10153 * issues PCI function reset mailbox command to reset the FCoE function. 10154 * At the end of the function, it calls lpfc_hba_down_post function to 10155 * free any pending commands. 10156 **/ 10157 static void 10158 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 10159 { 10160 int wait_cnt = 0; 10161 LPFC_MBOXQ_t *mboxq; 10162 struct pci_dev *pdev = phba->pcidev; 10163 10164 lpfc_stop_hba_timers(phba); 10165 phba->sli4_hba.intr_enable = 0; 10166 10167 /* 10168 * Gracefully wait out the potential current outstanding asynchronous 10169 * mailbox command. 10170 */ 10171 10172 /* First, block any pending async mailbox command from posted */ 10173 spin_lock_irq(&phba->hbalock); 10174 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 10175 spin_unlock_irq(&phba->hbalock); 10176 /* Now, trying to wait it out if we can */ 10177 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10178 msleep(10); 10179 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 10180 break; 10181 } 10182 /* Forcefully release the outstanding mailbox command if timed out */ 10183 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10184 spin_lock_irq(&phba->hbalock); 10185 mboxq = phba->sli.mbox_active; 10186 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 10187 __lpfc_mbox_cmpl_put(phba, mboxq); 10188 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 10189 phba->sli.mbox_active = NULL; 10190 spin_unlock_irq(&phba->hbalock); 10191 } 10192 10193 /* Abort all iocbs associated with the hba */ 10194 lpfc_sli_hba_iocb_abort(phba); 10195 10196 /* Wait for completion of device XRI exchange busy */ 10197 lpfc_sli4_xri_exchange_busy_wait(phba); 10198 10199 /* Disable PCI subsystem interrupt */ 10200 lpfc_sli4_disable_intr(phba); 10201 10202 /* Disable SR-IOV if enabled */ 10203 if (phba->cfg_sriov_nr_virtfn) 10204 pci_disable_sriov(pdev); 10205 10206 /* Stop kthread signal shall trigger work_done one more time */ 10207 kthread_stop(phba->worker_thread); 10208 10209 /* Unset the queues shared with the hardware then release all 10210 * allocated resources. 10211 */ 10212 lpfc_sli4_queue_unset(phba); 10213 lpfc_sli4_queue_destroy(phba); 10214 10215 /* Reset SLI4 HBA FCoE function */ 10216 lpfc_pci_function_reset(phba); 10217 10218 /* Stop the SLI4 device port */ 10219 phba->pport->work_port_events = 0; 10220 } 10221 10222 /** 10223 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 10224 * @phba: Pointer to HBA context object. 10225 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10226 * 10227 * This function is called in the SLI4 code path to read the port's 10228 * sli4 capabilities. 10229 * 10230 * This function may be be called from any context that can block-wait 10231 * for the completion. The expectation is that this routine is called 10232 * typically from probe_one or from the online routine. 10233 **/ 10234 int 10235 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10236 { 10237 int rc; 10238 struct lpfc_mqe *mqe; 10239 struct lpfc_pc_sli4_params *sli4_params; 10240 uint32_t mbox_tmo; 10241 10242 rc = 0; 10243 mqe = &mboxq->u.mqe; 10244 10245 /* Read the port's SLI4 Parameters port capabilities */ 10246 lpfc_pc_sli4_params(mboxq); 10247 if (!phba->sli4_hba.intr_enable) 10248 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10249 else { 10250 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10251 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10252 } 10253 10254 if (unlikely(rc)) 10255 return 1; 10256 10257 sli4_params = &phba->sli4_hba.pc_sli4_params; 10258 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 10259 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 10260 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 10261 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 10262 &mqe->un.sli4_params); 10263 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 10264 &mqe->un.sli4_params); 10265 sli4_params->proto_types = mqe->un.sli4_params.word3; 10266 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 10267 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 10268 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 10269 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 10270 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 10271 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 10272 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 10273 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 10274 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 10275 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 10276 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 10277 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 10278 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 10279 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 10280 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 10281 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 10282 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 10283 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 10284 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 10285 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 10286 10287 /* Make sure that sge_supp_len can be handled by the driver */ 10288 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10289 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10290 10291 return rc; 10292 } 10293 10294 /** 10295 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 10296 * @phba: Pointer to HBA context object. 10297 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10298 * 10299 * This function is called in the SLI4 code path to read the port's 10300 * sli4 capabilities. 10301 * 10302 * This function may be be called from any context that can block-wait 10303 * for the completion. The expectation is that this routine is called 10304 * typically from probe_one or from the online routine. 10305 **/ 10306 int 10307 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10308 { 10309 int rc; 10310 struct lpfc_mqe *mqe = &mboxq->u.mqe; 10311 struct lpfc_pc_sli4_params *sli4_params; 10312 uint32_t mbox_tmo; 10313 int length; 10314 struct lpfc_sli4_parameters *mbx_sli4_parameters; 10315 10316 /* 10317 * By default, the driver assumes the SLI4 port requires RPI 10318 * header postings. The SLI4_PARAM response will correct this 10319 * assumption. 10320 */ 10321 phba->sli4_hba.rpi_hdrs_in_use = 1; 10322 10323 /* Read the port's SLI4 Config Parameters */ 10324 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 10325 sizeof(struct lpfc_sli4_cfg_mhdr)); 10326 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 10327 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 10328 length, LPFC_SLI4_MBX_EMBED); 10329 if (!phba->sli4_hba.intr_enable) 10330 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10331 else { 10332 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10333 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10334 } 10335 if (unlikely(rc)) 10336 return rc; 10337 sli4_params = &phba->sli4_hba.pc_sli4_params; 10338 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 10339 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 10340 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 10341 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 10342 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 10343 mbx_sli4_parameters); 10344 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 10345 mbx_sli4_parameters); 10346 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 10347 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 10348 else 10349 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 10350 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 10351 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 10352 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters); 10353 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 10354 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 10355 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 10356 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 10357 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters); 10358 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 10359 mbx_sli4_parameters); 10360 sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters); 10361 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 10362 mbx_sli4_parameters); 10363 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 10364 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 10365 phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) && 10366 bf_get(cfg_xib, mbx_sli4_parameters)); 10367 10368 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) || 10369 !phba->nvme_support) { 10370 phba->nvme_support = 0; 10371 phba->nvmet_support = 0; 10372 phba->cfg_nvmet_mrq = 0; 10373 phba->cfg_nvme_io_channel = 0; 10374 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 10375 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME, 10376 "6101 Disabling NVME support: " 10377 "Not supported by firmware: %d %d\n", 10378 bf_get(cfg_nvme, mbx_sli4_parameters), 10379 bf_get(cfg_xib, mbx_sli4_parameters)); 10380 10381 /* If firmware doesn't support NVME, just use SCSI support */ 10382 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 10383 return -ENODEV; 10384 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 10385 } 10386 10387 if (bf_get(cfg_xib, mbx_sli4_parameters) && phba->cfg_suppress_rsp) 10388 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP; 10389 10390 if (bf_get(cfg_eqdr, mbx_sli4_parameters)) 10391 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR; 10392 10393 /* Make sure that sge_supp_len can be handled by the driver */ 10394 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10395 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10396 10397 /* 10398 * Issue IOs with CDB embedded in WQE to minimized the number 10399 * of DMAs the firmware has to do. Setting this to 1 also forces 10400 * the driver to use 128 bytes WQEs for FCP IOs. 10401 */ 10402 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters)) 10403 phba->fcp_embed_io = 1; 10404 else 10405 phba->fcp_embed_io = 0; 10406 10407 /* 10408 * Check if the SLI port supports MDS Diagnostics 10409 */ 10410 if (bf_get(cfg_mds_diags, mbx_sli4_parameters)) 10411 phba->mds_diags_support = 1; 10412 else 10413 phba->mds_diags_support = 0; 10414 return 0; 10415 } 10416 10417 /** 10418 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 10419 * @pdev: pointer to PCI device 10420 * @pid: pointer to PCI device identifier 10421 * 10422 * This routine is to be called to attach a device with SLI-3 interface spec 10423 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10424 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 10425 * information of the device and driver to see if the driver state that it can 10426 * support this kind of device. If the match is successful, the driver core 10427 * invokes this routine. If this routine determines it can claim the HBA, it 10428 * does all the initialization that it needs to do to handle the HBA properly. 10429 * 10430 * Return code 10431 * 0 - driver can claim the device 10432 * negative value - driver can not claim the device 10433 **/ 10434 static int 10435 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 10436 { 10437 struct lpfc_hba *phba; 10438 struct lpfc_vport *vport = NULL; 10439 struct Scsi_Host *shost = NULL; 10440 int error; 10441 uint32_t cfg_mode, intr_mode; 10442 10443 /* Allocate memory for HBA structure */ 10444 phba = lpfc_hba_alloc(pdev); 10445 if (!phba) 10446 return -ENOMEM; 10447 10448 /* Perform generic PCI device enabling operation */ 10449 error = lpfc_enable_pci_dev(phba); 10450 if (error) 10451 goto out_free_phba; 10452 10453 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 10454 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 10455 if (error) 10456 goto out_disable_pci_dev; 10457 10458 /* Set up SLI-3 specific device PCI memory space */ 10459 error = lpfc_sli_pci_mem_setup(phba); 10460 if (error) { 10461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10462 "1402 Failed to set up pci memory space.\n"); 10463 goto out_disable_pci_dev; 10464 } 10465 10466 /* Set up SLI-3 specific device driver resources */ 10467 error = lpfc_sli_driver_resource_setup(phba); 10468 if (error) { 10469 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10470 "1404 Failed to set up driver resource.\n"); 10471 goto out_unset_pci_mem_s3; 10472 } 10473 10474 /* Initialize and populate the iocb list per host */ 10475 10476 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 10477 if (error) { 10478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10479 "1405 Failed to initialize iocb list.\n"); 10480 goto out_unset_driver_resource_s3; 10481 } 10482 10483 /* Set up common device driver resources */ 10484 error = lpfc_setup_driver_resource_phase2(phba); 10485 if (error) { 10486 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10487 "1406 Failed to set up driver resource.\n"); 10488 goto out_free_iocb_list; 10489 } 10490 10491 /* Get the default values for Model Name and Description */ 10492 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 10493 10494 /* Create SCSI host to the physical port */ 10495 error = lpfc_create_shost(phba); 10496 if (error) { 10497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10498 "1407 Failed to create scsi host.\n"); 10499 goto out_unset_driver_resource; 10500 } 10501 10502 /* Configure sysfs attributes */ 10503 vport = phba->pport; 10504 error = lpfc_alloc_sysfs_attr(vport); 10505 if (error) { 10506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10507 "1476 Failed to allocate sysfs attr\n"); 10508 goto out_destroy_shost; 10509 } 10510 10511 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 10512 /* Now, trying to enable interrupt and bring up the device */ 10513 cfg_mode = phba->cfg_use_msi; 10514 while (true) { 10515 /* Put device to a known state before enabling interrupt */ 10516 lpfc_stop_port(phba); 10517 /* Configure and enable interrupt */ 10518 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 10519 if (intr_mode == LPFC_INTR_ERROR) { 10520 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10521 "0431 Failed to enable interrupt.\n"); 10522 error = -ENODEV; 10523 goto out_free_sysfs_attr; 10524 } 10525 /* SLI-3 HBA setup */ 10526 if (lpfc_sli_hba_setup(phba)) { 10527 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10528 "1477 Failed to set up hba\n"); 10529 error = -ENODEV; 10530 goto out_remove_device; 10531 } 10532 10533 /* Wait 50ms for the interrupts of previous mailbox commands */ 10534 msleep(50); 10535 /* Check active interrupts on message signaled interrupts */ 10536 if (intr_mode == 0 || 10537 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 10538 /* Log the current active interrupt mode */ 10539 phba->intr_mode = intr_mode; 10540 lpfc_log_intr_mode(phba, intr_mode); 10541 break; 10542 } else { 10543 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10544 "0447 Configure interrupt mode (%d) " 10545 "failed active interrupt test.\n", 10546 intr_mode); 10547 /* Disable the current interrupt mode */ 10548 lpfc_sli_disable_intr(phba); 10549 /* Try next level of interrupt mode */ 10550 cfg_mode = --intr_mode; 10551 } 10552 } 10553 10554 /* Perform post initialization setup */ 10555 lpfc_post_init_setup(phba); 10556 10557 /* Check if there are static vports to be created. */ 10558 lpfc_create_static_vport(phba); 10559 10560 return 0; 10561 10562 out_remove_device: 10563 lpfc_unset_hba(phba); 10564 out_free_sysfs_attr: 10565 lpfc_free_sysfs_attr(vport); 10566 out_destroy_shost: 10567 lpfc_destroy_shost(phba); 10568 out_unset_driver_resource: 10569 lpfc_unset_driver_resource_phase2(phba); 10570 out_free_iocb_list: 10571 lpfc_free_iocb_list(phba); 10572 out_unset_driver_resource_s3: 10573 lpfc_sli_driver_resource_unset(phba); 10574 out_unset_pci_mem_s3: 10575 lpfc_sli_pci_mem_unset(phba); 10576 out_disable_pci_dev: 10577 lpfc_disable_pci_dev(phba); 10578 if (shost) 10579 scsi_host_put(shost); 10580 out_free_phba: 10581 lpfc_hba_free(phba); 10582 return error; 10583 } 10584 10585 /** 10586 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 10587 * @pdev: pointer to PCI device 10588 * 10589 * This routine is to be called to disattach a device with SLI-3 interface 10590 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10591 * removed from PCI bus, it performs all the necessary cleanup for the HBA 10592 * device to be removed from the PCI subsystem properly. 10593 **/ 10594 static void 10595 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 10596 { 10597 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10598 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 10599 struct lpfc_vport **vports; 10600 struct lpfc_hba *phba = vport->phba; 10601 int i; 10602 10603 spin_lock_irq(&phba->hbalock); 10604 vport->load_flag |= FC_UNLOADING; 10605 spin_unlock_irq(&phba->hbalock); 10606 10607 lpfc_free_sysfs_attr(vport); 10608 10609 /* Release all the vports against this physical port */ 10610 vports = lpfc_create_vport_work_array(phba); 10611 if (vports != NULL) 10612 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 10613 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 10614 continue; 10615 fc_vport_terminate(vports[i]->fc_vport); 10616 } 10617 lpfc_destroy_vport_work_array(phba, vports); 10618 10619 /* Remove FC host and then SCSI host with the physical port */ 10620 fc_remove_host(shost); 10621 scsi_remove_host(shost); 10622 10623 lpfc_cleanup(vport); 10624 10625 /* 10626 * Bring down the SLI Layer. This step disable all interrupts, 10627 * clears the rings, discards all mailbox commands, and resets 10628 * the HBA. 10629 */ 10630 10631 /* HBA interrupt will be disabled after this call */ 10632 lpfc_sli_hba_down(phba); 10633 /* Stop kthread signal shall trigger work_done one more time */ 10634 kthread_stop(phba->worker_thread); 10635 /* Final cleanup of txcmplq and reset the HBA */ 10636 lpfc_sli_brdrestart(phba); 10637 10638 kfree(phba->vpi_bmask); 10639 kfree(phba->vpi_ids); 10640 10641 lpfc_stop_hba_timers(phba); 10642 spin_lock_irq(&phba->hbalock); 10643 list_del_init(&vport->listentry); 10644 spin_unlock_irq(&phba->hbalock); 10645 10646 lpfc_debugfs_terminate(vport); 10647 10648 /* Disable SR-IOV if enabled */ 10649 if (phba->cfg_sriov_nr_virtfn) 10650 pci_disable_sriov(pdev); 10651 10652 /* Disable interrupt */ 10653 lpfc_sli_disable_intr(phba); 10654 10655 scsi_host_put(shost); 10656 10657 /* 10658 * Call scsi_free before mem_free since scsi bufs are released to their 10659 * corresponding pools here. 10660 */ 10661 lpfc_scsi_free(phba); 10662 lpfc_mem_free_all(phba); 10663 10664 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 10665 phba->hbqslimp.virt, phba->hbqslimp.phys); 10666 10667 /* Free resources associated with SLI2 interface */ 10668 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 10669 phba->slim2p.virt, phba->slim2p.phys); 10670 10671 /* unmap adapter SLIM and Control Registers */ 10672 iounmap(phba->ctrl_regs_memmap_p); 10673 iounmap(phba->slim_memmap_p); 10674 10675 lpfc_hba_free(phba); 10676 10677 pci_release_mem_regions(pdev); 10678 pci_disable_device(pdev); 10679 } 10680 10681 /** 10682 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 10683 * @pdev: pointer to PCI device 10684 * @msg: power management message 10685 * 10686 * This routine is to be called from the kernel's PCI subsystem to support 10687 * system Power Management (PM) to device with SLI-3 interface spec. When 10688 * PM invokes this method, it quiesces the device by stopping the driver's 10689 * worker thread for the device, turning off device's interrupt and DMA, 10690 * and bring the device offline. Note that as the driver implements the 10691 * minimum PM requirements to a power-aware driver's PM support for the 10692 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 10693 * to the suspend() method call will be treated as SUSPEND and the driver will 10694 * fully reinitialize its device during resume() method call, the driver will 10695 * set device to PCI_D3hot state in PCI config space instead of setting it 10696 * according to the @msg provided by the PM. 10697 * 10698 * Return code 10699 * 0 - driver suspended the device 10700 * Error otherwise 10701 **/ 10702 static int 10703 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 10704 { 10705 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10706 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10707 10708 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10709 "0473 PCI device Power Management suspend.\n"); 10710 10711 /* Bring down the device */ 10712 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10713 lpfc_offline(phba); 10714 kthread_stop(phba->worker_thread); 10715 10716 /* Disable interrupt from device */ 10717 lpfc_sli_disable_intr(phba); 10718 10719 /* Save device state to PCI config space */ 10720 pci_save_state(pdev); 10721 pci_set_power_state(pdev, PCI_D3hot); 10722 10723 return 0; 10724 } 10725 10726 /** 10727 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 10728 * @pdev: pointer to PCI device 10729 * 10730 * This routine is to be called from the kernel's PCI subsystem to support 10731 * system Power Management (PM) to device with SLI-3 interface spec. When PM 10732 * invokes this method, it restores the device's PCI config space state and 10733 * fully reinitializes the device and brings it online. Note that as the 10734 * driver implements the minimum PM requirements to a power-aware driver's 10735 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 10736 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 10737 * driver will fully reinitialize its device during resume() method call, 10738 * the device will be set to PCI_D0 directly in PCI config space before 10739 * restoring the state. 10740 * 10741 * Return code 10742 * 0 - driver suspended the device 10743 * Error otherwise 10744 **/ 10745 static int 10746 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 10747 { 10748 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10749 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10750 uint32_t intr_mode; 10751 int error; 10752 10753 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10754 "0452 PCI device Power Management resume.\n"); 10755 10756 /* Restore device state from PCI config space */ 10757 pci_set_power_state(pdev, PCI_D0); 10758 pci_restore_state(pdev); 10759 10760 /* 10761 * As the new kernel behavior of pci_restore_state() API call clears 10762 * device saved_state flag, need to save the restored state again. 10763 */ 10764 pci_save_state(pdev); 10765 10766 if (pdev->is_busmaster) 10767 pci_set_master(pdev); 10768 10769 /* Startup the kernel thread for this host adapter. */ 10770 phba->worker_thread = kthread_run(lpfc_do_work, phba, 10771 "lpfc_worker_%d", phba->brd_no); 10772 if (IS_ERR(phba->worker_thread)) { 10773 error = PTR_ERR(phba->worker_thread); 10774 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10775 "0434 PM resume failed to start worker " 10776 "thread: error=x%x.\n", error); 10777 return error; 10778 } 10779 10780 /* Configure and enable interrupt */ 10781 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10782 if (intr_mode == LPFC_INTR_ERROR) { 10783 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10784 "0430 PM resume Failed to enable interrupt\n"); 10785 return -EIO; 10786 } else 10787 phba->intr_mode = intr_mode; 10788 10789 /* Restart HBA and bring it online */ 10790 lpfc_sli_brdrestart(phba); 10791 lpfc_online(phba); 10792 10793 /* Log the current active interrupt mode */ 10794 lpfc_log_intr_mode(phba, phba->intr_mode); 10795 10796 return 0; 10797 } 10798 10799 /** 10800 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 10801 * @phba: pointer to lpfc hba data structure. 10802 * 10803 * This routine is called to prepare the SLI3 device for PCI slot recover. It 10804 * aborts all the outstanding SCSI I/Os to the pci device. 10805 **/ 10806 static void 10807 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 10808 { 10809 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10810 "2723 PCI channel I/O abort preparing for recovery\n"); 10811 10812 /* 10813 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 10814 * and let the SCSI mid-layer to retry them to recover. 10815 */ 10816 lpfc_sli_abort_fcp_rings(phba); 10817 } 10818 10819 /** 10820 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 10821 * @phba: pointer to lpfc hba data structure. 10822 * 10823 * This routine is called to prepare the SLI3 device for PCI slot reset. It 10824 * disables the device interrupt and pci device, and aborts the internal FCP 10825 * pending I/Os. 10826 **/ 10827 static void 10828 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 10829 { 10830 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10831 "2710 PCI channel disable preparing for reset\n"); 10832 10833 /* Block any management I/Os to the device */ 10834 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 10835 10836 /* Block all SCSI devices' I/Os on the host */ 10837 lpfc_scsi_dev_block(phba); 10838 10839 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 10840 lpfc_sli_flush_fcp_rings(phba); 10841 10842 /* stop all timers */ 10843 lpfc_stop_hba_timers(phba); 10844 10845 /* Disable interrupt and pci device */ 10846 lpfc_sli_disable_intr(phba); 10847 pci_disable_device(phba->pcidev); 10848 } 10849 10850 /** 10851 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 10852 * @phba: pointer to lpfc hba data structure. 10853 * 10854 * This routine is called to prepare the SLI3 device for PCI slot permanently 10855 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 10856 * pending I/Os. 10857 **/ 10858 static void 10859 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 10860 { 10861 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10862 "2711 PCI channel permanent disable for failure\n"); 10863 /* Block all SCSI devices' I/Os on the host */ 10864 lpfc_scsi_dev_block(phba); 10865 10866 /* stop all timers */ 10867 lpfc_stop_hba_timers(phba); 10868 10869 /* Clean up all driver's outstanding SCSI I/Os */ 10870 lpfc_sli_flush_fcp_rings(phba); 10871 } 10872 10873 /** 10874 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 10875 * @pdev: pointer to PCI device. 10876 * @state: the current PCI connection state. 10877 * 10878 * This routine is called from the PCI subsystem for I/O error handling to 10879 * device with SLI-3 interface spec. This function is called by the PCI 10880 * subsystem after a PCI bus error affecting this device has been detected. 10881 * When this function is invoked, it will need to stop all the I/Os and 10882 * interrupt(s) to the device. Once that is done, it will return 10883 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 10884 * as desired. 10885 * 10886 * Return codes 10887 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 10888 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10889 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10890 **/ 10891 static pci_ers_result_t 10892 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 10893 { 10894 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10895 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10896 10897 switch (state) { 10898 case pci_channel_io_normal: 10899 /* Non-fatal error, prepare for recovery */ 10900 lpfc_sli_prep_dev_for_recover(phba); 10901 return PCI_ERS_RESULT_CAN_RECOVER; 10902 case pci_channel_io_frozen: 10903 /* Fatal error, prepare for slot reset */ 10904 lpfc_sli_prep_dev_for_reset(phba); 10905 return PCI_ERS_RESULT_NEED_RESET; 10906 case pci_channel_io_perm_failure: 10907 /* Permanent failure, prepare for device down */ 10908 lpfc_sli_prep_dev_for_perm_failure(phba); 10909 return PCI_ERS_RESULT_DISCONNECT; 10910 default: 10911 /* Unknown state, prepare and request slot reset */ 10912 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10913 "0472 Unknown PCI error state: x%x\n", state); 10914 lpfc_sli_prep_dev_for_reset(phba); 10915 return PCI_ERS_RESULT_NEED_RESET; 10916 } 10917 } 10918 10919 /** 10920 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 10921 * @pdev: pointer to PCI device. 10922 * 10923 * This routine is called from the PCI subsystem for error handling to 10924 * device with SLI-3 interface spec. This is called after PCI bus has been 10925 * reset to restart the PCI card from scratch, as if from a cold-boot. 10926 * During the PCI subsystem error recovery, after driver returns 10927 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 10928 * recovery and then call this routine before calling the .resume method 10929 * to recover the device. This function will initialize the HBA device, 10930 * enable the interrupt, but it will just put the HBA to offline state 10931 * without passing any I/O traffic. 10932 * 10933 * Return codes 10934 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10935 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10936 */ 10937 static pci_ers_result_t 10938 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 10939 { 10940 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10941 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10942 struct lpfc_sli *psli = &phba->sli; 10943 uint32_t intr_mode; 10944 10945 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 10946 if (pci_enable_device_mem(pdev)) { 10947 printk(KERN_ERR "lpfc: Cannot re-enable " 10948 "PCI device after reset.\n"); 10949 return PCI_ERS_RESULT_DISCONNECT; 10950 } 10951 10952 pci_restore_state(pdev); 10953 10954 /* 10955 * As the new kernel behavior of pci_restore_state() API call clears 10956 * device saved_state flag, need to save the restored state again. 10957 */ 10958 pci_save_state(pdev); 10959 10960 if (pdev->is_busmaster) 10961 pci_set_master(pdev); 10962 10963 spin_lock_irq(&phba->hbalock); 10964 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10965 spin_unlock_irq(&phba->hbalock); 10966 10967 /* Configure and enable interrupt */ 10968 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10969 if (intr_mode == LPFC_INTR_ERROR) { 10970 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10971 "0427 Cannot re-enable interrupt after " 10972 "slot reset.\n"); 10973 return PCI_ERS_RESULT_DISCONNECT; 10974 } else 10975 phba->intr_mode = intr_mode; 10976 10977 /* Take device offline, it will perform cleanup */ 10978 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10979 lpfc_offline(phba); 10980 lpfc_sli_brdrestart(phba); 10981 10982 /* Log the current active interrupt mode */ 10983 lpfc_log_intr_mode(phba, phba->intr_mode); 10984 10985 return PCI_ERS_RESULT_RECOVERED; 10986 } 10987 10988 /** 10989 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 10990 * @pdev: pointer to PCI device 10991 * 10992 * This routine is called from the PCI subsystem for error handling to device 10993 * with SLI-3 interface spec. It is called when kernel error recovery tells 10994 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10995 * error recovery. After this call, traffic can start to flow from this device 10996 * again. 10997 */ 10998 static void 10999 lpfc_io_resume_s3(struct pci_dev *pdev) 11000 { 11001 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11002 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11003 11004 /* Bring device online, it will be no-op for non-fatal error resume */ 11005 lpfc_online(phba); 11006 11007 /* Clean up Advanced Error Reporting (AER) if needed */ 11008 if (phba->hba_flag & HBA_AER_ENABLED) 11009 pci_cleanup_aer_uncorrect_error_status(pdev); 11010 } 11011 11012 /** 11013 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 11014 * @phba: pointer to lpfc hba data structure. 11015 * 11016 * returns the number of ELS/CT IOCBs to reserve 11017 **/ 11018 int 11019 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 11020 { 11021 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 11022 11023 if (phba->sli_rev == LPFC_SLI_REV4) { 11024 if (max_xri <= 100) 11025 return 10; 11026 else if (max_xri <= 256) 11027 return 25; 11028 else if (max_xri <= 512) 11029 return 50; 11030 else if (max_xri <= 1024) 11031 return 100; 11032 else if (max_xri <= 1536) 11033 return 150; 11034 else if (max_xri <= 2048) 11035 return 200; 11036 else 11037 return 250; 11038 } else 11039 return 0; 11040 } 11041 11042 /** 11043 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve 11044 * @phba: pointer to lpfc hba data structure. 11045 * 11046 * returns the number of ELS/CT + NVMET IOCBs to reserve 11047 **/ 11048 int 11049 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba) 11050 { 11051 int max_xri = lpfc_sli4_get_els_iocb_cnt(phba); 11052 11053 if (phba->nvmet_support) 11054 max_xri += LPFC_NVMET_BUF_POST; 11055 return max_xri; 11056 } 11057 11058 11059 /** 11060 * lpfc_write_firmware - attempt to write a firmware image to the port 11061 * @fw: pointer to firmware image returned from request_firmware. 11062 * @phba: pointer to lpfc hba data structure. 11063 * 11064 **/ 11065 static void 11066 lpfc_write_firmware(const struct firmware *fw, void *context) 11067 { 11068 struct lpfc_hba *phba = (struct lpfc_hba *)context; 11069 char fwrev[FW_REV_STR_SIZE]; 11070 struct lpfc_grp_hdr *image; 11071 struct list_head dma_buffer_list; 11072 int i, rc = 0; 11073 struct lpfc_dmabuf *dmabuf, *next; 11074 uint32_t offset = 0, temp_offset = 0; 11075 uint32_t magic_number, ftype, fid, fsize; 11076 11077 /* It can be null in no-wait mode, sanity check */ 11078 if (!fw) { 11079 rc = -ENXIO; 11080 goto out; 11081 } 11082 image = (struct lpfc_grp_hdr *)fw->data; 11083 11084 magic_number = be32_to_cpu(image->magic_number); 11085 ftype = bf_get_be32(lpfc_grp_hdr_file_type, image); 11086 fid = bf_get_be32(lpfc_grp_hdr_id, image), 11087 fsize = be32_to_cpu(image->size); 11088 11089 INIT_LIST_HEAD(&dma_buffer_list); 11090 if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 && 11091 magic_number != LPFC_GROUP_OJECT_MAGIC_G6) || 11092 ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) { 11093 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11094 "3022 Invalid FW image found. " 11095 "Magic:%x Type:%x ID:%x Size %d %zd\n", 11096 magic_number, ftype, fid, fsize, fw->size); 11097 rc = -EINVAL; 11098 goto release_out; 11099 } 11100 lpfc_decode_firmware_rev(phba, fwrev, 1); 11101 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 11102 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11103 "3023 Updating Firmware, Current Version:%s " 11104 "New Version:%s\n", 11105 fwrev, image->revision); 11106 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 11107 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 11108 GFP_KERNEL); 11109 if (!dmabuf) { 11110 rc = -ENOMEM; 11111 goto release_out; 11112 } 11113 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 11114 SLI4_PAGE_SIZE, 11115 &dmabuf->phys, 11116 GFP_KERNEL); 11117 if (!dmabuf->virt) { 11118 kfree(dmabuf); 11119 rc = -ENOMEM; 11120 goto release_out; 11121 } 11122 list_add_tail(&dmabuf->list, &dma_buffer_list); 11123 } 11124 while (offset < fw->size) { 11125 temp_offset = offset; 11126 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 11127 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 11128 memcpy(dmabuf->virt, 11129 fw->data + temp_offset, 11130 fw->size - temp_offset); 11131 temp_offset = fw->size; 11132 break; 11133 } 11134 memcpy(dmabuf->virt, fw->data + temp_offset, 11135 SLI4_PAGE_SIZE); 11136 temp_offset += SLI4_PAGE_SIZE; 11137 } 11138 rc = lpfc_wr_object(phba, &dma_buffer_list, 11139 (fw->size - offset), &offset); 11140 if (rc) 11141 goto release_out; 11142 } 11143 rc = offset; 11144 } 11145 11146 release_out: 11147 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 11148 list_del(&dmabuf->list); 11149 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 11150 dmabuf->virt, dmabuf->phys); 11151 kfree(dmabuf); 11152 } 11153 release_firmware(fw); 11154 out: 11155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11156 "3024 Firmware update done: %d.\n", rc); 11157 return; 11158 } 11159 11160 /** 11161 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 11162 * @phba: pointer to lpfc hba data structure. 11163 * 11164 * This routine is called to perform Linux generic firmware upgrade on device 11165 * that supports such feature. 11166 **/ 11167 int 11168 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 11169 { 11170 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 11171 int ret; 11172 const struct firmware *fw; 11173 11174 /* Only supported on SLI4 interface type 2 for now */ 11175 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 11176 LPFC_SLI_INTF_IF_TYPE_2) 11177 return -EPERM; 11178 11179 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 11180 11181 if (fw_upgrade == INT_FW_UPGRADE) { 11182 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 11183 file_name, &phba->pcidev->dev, 11184 GFP_KERNEL, (void *)phba, 11185 lpfc_write_firmware); 11186 } else if (fw_upgrade == RUN_FW_UPGRADE) { 11187 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 11188 if (!ret) 11189 lpfc_write_firmware(fw, (void *)phba); 11190 } else { 11191 ret = -EINVAL; 11192 } 11193 11194 return ret; 11195 } 11196 11197 /** 11198 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 11199 * @pdev: pointer to PCI device 11200 * @pid: pointer to PCI device identifier 11201 * 11202 * This routine is called from the kernel's PCI subsystem to device with 11203 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11204 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 11205 * information of the device and driver to see if the driver state that it 11206 * can support this kind of device. If the match is successful, the driver 11207 * core invokes this routine. If this routine determines it can claim the HBA, 11208 * it does all the initialization that it needs to do to handle the HBA 11209 * properly. 11210 * 11211 * Return code 11212 * 0 - driver can claim the device 11213 * negative value - driver can not claim the device 11214 **/ 11215 static int 11216 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 11217 { 11218 struct lpfc_hba *phba; 11219 struct lpfc_vport *vport = NULL; 11220 struct Scsi_Host *shost = NULL; 11221 int error; 11222 uint32_t cfg_mode, intr_mode; 11223 11224 /* Allocate memory for HBA structure */ 11225 phba = lpfc_hba_alloc(pdev); 11226 if (!phba) 11227 return -ENOMEM; 11228 11229 /* Perform generic PCI device enabling operation */ 11230 error = lpfc_enable_pci_dev(phba); 11231 if (error) 11232 goto out_free_phba; 11233 11234 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 11235 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 11236 if (error) 11237 goto out_disable_pci_dev; 11238 11239 /* Set up SLI-4 specific device PCI memory space */ 11240 error = lpfc_sli4_pci_mem_setup(phba); 11241 if (error) { 11242 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11243 "1410 Failed to set up pci memory space.\n"); 11244 goto out_disable_pci_dev; 11245 } 11246 11247 /* Set up SLI-4 Specific device driver resources */ 11248 error = lpfc_sli4_driver_resource_setup(phba); 11249 if (error) { 11250 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11251 "1412 Failed to set up driver resource.\n"); 11252 goto out_unset_pci_mem_s4; 11253 } 11254 11255 INIT_LIST_HEAD(&phba->active_rrq_list); 11256 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 11257 11258 /* Set up common device driver resources */ 11259 error = lpfc_setup_driver_resource_phase2(phba); 11260 if (error) { 11261 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11262 "1414 Failed to set up driver resource.\n"); 11263 goto out_unset_driver_resource_s4; 11264 } 11265 11266 /* Get the default values for Model Name and Description */ 11267 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 11268 11269 /* Create SCSI host to the physical port */ 11270 error = lpfc_create_shost(phba); 11271 if (error) { 11272 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11273 "1415 Failed to create scsi host.\n"); 11274 goto out_unset_driver_resource; 11275 } 11276 11277 /* Configure sysfs attributes */ 11278 vport = phba->pport; 11279 error = lpfc_alloc_sysfs_attr(vport); 11280 if (error) { 11281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11282 "1416 Failed to allocate sysfs attr\n"); 11283 goto out_destroy_shost; 11284 } 11285 11286 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 11287 /* Now, trying to enable interrupt and bring up the device */ 11288 cfg_mode = phba->cfg_use_msi; 11289 11290 /* Put device to a known state before enabling interrupt */ 11291 lpfc_stop_port(phba); 11292 11293 /* Configure and enable interrupt */ 11294 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 11295 if (intr_mode == LPFC_INTR_ERROR) { 11296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11297 "0426 Failed to enable interrupt.\n"); 11298 error = -ENODEV; 11299 goto out_free_sysfs_attr; 11300 } 11301 /* Default to single EQ for non-MSI-X */ 11302 if (phba->intr_type != MSIX) { 11303 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 11304 phba->cfg_fcp_io_channel = 1; 11305 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 11306 phba->cfg_nvme_io_channel = 1; 11307 if (phba->nvmet_support) 11308 phba->cfg_nvmet_mrq = 1; 11309 } 11310 phba->io_channel_irqs = 1; 11311 } 11312 11313 /* Set up SLI-4 HBA */ 11314 if (lpfc_sli4_hba_setup(phba)) { 11315 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11316 "1421 Failed to set up hba\n"); 11317 error = -ENODEV; 11318 goto out_disable_intr; 11319 } 11320 11321 /* Log the current active interrupt mode */ 11322 phba->intr_mode = intr_mode; 11323 lpfc_log_intr_mode(phba, intr_mode); 11324 11325 /* Perform post initialization setup */ 11326 lpfc_post_init_setup(phba); 11327 11328 /* NVME support in FW earlier in the driver load corrects the 11329 * FC4 type making a check for nvme_support unnecessary. 11330 */ 11331 if ((phba->nvmet_support == 0) && 11332 (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 11333 /* Create NVME binding with nvme_fc_transport. This 11334 * ensures the vport is initialized. If the localport 11335 * create fails, it should not unload the driver to 11336 * support field issues. 11337 */ 11338 error = lpfc_nvme_create_localport(vport); 11339 if (error) { 11340 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11341 "6004 NVME registration failed, " 11342 "error x%x\n", 11343 error); 11344 } 11345 } 11346 11347 /* check for firmware upgrade or downgrade */ 11348 if (phba->cfg_request_firmware_upgrade) 11349 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 11350 11351 /* Check if there are static vports to be created. */ 11352 lpfc_create_static_vport(phba); 11353 return 0; 11354 11355 out_disable_intr: 11356 lpfc_sli4_disable_intr(phba); 11357 out_free_sysfs_attr: 11358 lpfc_free_sysfs_attr(vport); 11359 out_destroy_shost: 11360 lpfc_destroy_shost(phba); 11361 out_unset_driver_resource: 11362 lpfc_unset_driver_resource_phase2(phba); 11363 out_unset_driver_resource_s4: 11364 lpfc_sli4_driver_resource_unset(phba); 11365 out_unset_pci_mem_s4: 11366 lpfc_sli4_pci_mem_unset(phba); 11367 out_disable_pci_dev: 11368 lpfc_disable_pci_dev(phba); 11369 if (shost) 11370 scsi_host_put(shost); 11371 out_free_phba: 11372 lpfc_hba_free(phba); 11373 return error; 11374 } 11375 11376 /** 11377 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 11378 * @pdev: pointer to PCI device 11379 * 11380 * This routine is called from the kernel's PCI subsystem to device with 11381 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11382 * removed from PCI bus, it performs all the necessary cleanup for the HBA 11383 * device to be removed from the PCI subsystem properly. 11384 **/ 11385 static void 11386 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 11387 { 11388 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11389 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 11390 struct lpfc_vport **vports; 11391 struct lpfc_hba *phba = vport->phba; 11392 int i; 11393 11394 /* Mark the device unloading flag */ 11395 spin_lock_irq(&phba->hbalock); 11396 vport->load_flag |= FC_UNLOADING; 11397 spin_unlock_irq(&phba->hbalock); 11398 11399 /* Free the HBA sysfs attributes */ 11400 lpfc_free_sysfs_attr(vport); 11401 11402 /* Release all the vports against this physical port */ 11403 vports = lpfc_create_vport_work_array(phba); 11404 if (vports != NULL) 11405 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 11406 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 11407 continue; 11408 fc_vport_terminate(vports[i]->fc_vport); 11409 } 11410 lpfc_destroy_vport_work_array(phba, vports); 11411 11412 /* Remove FC host and then SCSI host with the physical port */ 11413 fc_remove_host(shost); 11414 scsi_remove_host(shost); 11415 /* 11416 * Bring down the SLI Layer. This step disables all interrupts, 11417 * clears the rings, discards all mailbox commands, and resets 11418 * the HBA FCoE function. 11419 */ 11420 lpfc_debugfs_terminate(vport); 11421 lpfc_sli4_hba_unset(phba); 11422 11423 /* Perform ndlp cleanup on the physical port. The nvme and nvmet 11424 * localports are destroyed after to cleanup all transport memory. 11425 */ 11426 lpfc_cleanup(vport); 11427 lpfc_nvmet_destroy_targetport(phba); 11428 lpfc_nvme_destroy_localport(vport); 11429 11430 11431 lpfc_stop_hba_timers(phba); 11432 spin_lock_irq(&phba->hbalock); 11433 list_del_init(&vport->listentry); 11434 spin_unlock_irq(&phba->hbalock); 11435 11436 /* Perform scsi free before driver resource_unset since scsi 11437 * buffers are released to their corresponding pools here. 11438 */ 11439 lpfc_scsi_free(phba); 11440 lpfc_nvme_free(phba); 11441 lpfc_free_iocb_list(phba); 11442 11443 lpfc_sli4_driver_resource_unset(phba); 11444 11445 /* Unmap adapter Control and Doorbell registers */ 11446 lpfc_sli4_pci_mem_unset(phba); 11447 11448 /* Release PCI resources and disable device's PCI function */ 11449 scsi_host_put(shost); 11450 lpfc_disable_pci_dev(phba); 11451 11452 /* Finally, free the driver's device data structure */ 11453 lpfc_hba_free(phba); 11454 11455 return; 11456 } 11457 11458 /** 11459 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 11460 * @pdev: pointer to PCI device 11461 * @msg: power management message 11462 * 11463 * This routine is called from the kernel's PCI subsystem to support system 11464 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 11465 * this method, it quiesces the device by stopping the driver's worker 11466 * thread for the device, turning off device's interrupt and DMA, and bring 11467 * the device offline. Note that as the driver implements the minimum PM 11468 * requirements to a power-aware driver's PM support for suspend/resume -- all 11469 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 11470 * method call will be treated as SUSPEND and the driver will fully 11471 * reinitialize its device during resume() method call, the driver will set 11472 * device to PCI_D3hot state in PCI config space instead of setting it 11473 * according to the @msg provided by the PM. 11474 * 11475 * Return code 11476 * 0 - driver suspended the device 11477 * Error otherwise 11478 **/ 11479 static int 11480 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 11481 { 11482 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11483 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11484 11485 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11486 "2843 PCI device Power Management suspend.\n"); 11487 11488 /* Bring down the device */ 11489 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11490 lpfc_offline(phba); 11491 kthread_stop(phba->worker_thread); 11492 11493 /* Disable interrupt from device */ 11494 lpfc_sli4_disable_intr(phba); 11495 lpfc_sli4_queue_destroy(phba); 11496 11497 /* Save device state to PCI config space */ 11498 pci_save_state(pdev); 11499 pci_set_power_state(pdev, PCI_D3hot); 11500 11501 return 0; 11502 } 11503 11504 /** 11505 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 11506 * @pdev: pointer to PCI device 11507 * 11508 * This routine is called from the kernel's PCI subsystem to support system 11509 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 11510 * this method, it restores the device's PCI config space state and fully 11511 * reinitializes the device and brings it online. Note that as the driver 11512 * implements the minimum PM requirements to a power-aware driver's PM for 11513 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 11514 * to the suspend() method call will be treated as SUSPEND and the driver 11515 * will fully reinitialize its device during resume() method call, the device 11516 * will be set to PCI_D0 directly in PCI config space before restoring the 11517 * state. 11518 * 11519 * Return code 11520 * 0 - driver suspended the device 11521 * Error otherwise 11522 **/ 11523 static int 11524 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 11525 { 11526 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11527 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11528 uint32_t intr_mode; 11529 int error; 11530 11531 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11532 "0292 PCI device Power Management resume.\n"); 11533 11534 /* Restore device state from PCI config space */ 11535 pci_set_power_state(pdev, PCI_D0); 11536 pci_restore_state(pdev); 11537 11538 /* 11539 * As the new kernel behavior of pci_restore_state() API call clears 11540 * device saved_state flag, need to save the restored state again. 11541 */ 11542 pci_save_state(pdev); 11543 11544 if (pdev->is_busmaster) 11545 pci_set_master(pdev); 11546 11547 /* Startup the kernel thread for this host adapter. */ 11548 phba->worker_thread = kthread_run(lpfc_do_work, phba, 11549 "lpfc_worker_%d", phba->brd_no); 11550 if (IS_ERR(phba->worker_thread)) { 11551 error = PTR_ERR(phba->worker_thread); 11552 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11553 "0293 PM resume failed to start worker " 11554 "thread: error=x%x.\n", error); 11555 return error; 11556 } 11557 11558 /* Configure and enable interrupt */ 11559 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 11560 if (intr_mode == LPFC_INTR_ERROR) { 11561 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11562 "0294 PM resume Failed to enable interrupt\n"); 11563 return -EIO; 11564 } else 11565 phba->intr_mode = intr_mode; 11566 11567 /* Restart HBA and bring it online */ 11568 lpfc_sli_brdrestart(phba); 11569 lpfc_online(phba); 11570 11571 /* Log the current active interrupt mode */ 11572 lpfc_log_intr_mode(phba, phba->intr_mode); 11573 11574 return 0; 11575 } 11576 11577 /** 11578 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 11579 * @phba: pointer to lpfc hba data structure. 11580 * 11581 * This routine is called to prepare the SLI4 device for PCI slot recover. It 11582 * aborts all the outstanding SCSI I/Os to the pci device. 11583 **/ 11584 static void 11585 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 11586 { 11587 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11588 "2828 PCI channel I/O abort preparing for recovery\n"); 11589 /* 11590 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 11591 * and let the SCSI mid-layer to retry them to recover. 11592 */ 11593 lpfc_sli_abort_fcp_rings(phba); 11594 } 11595 11596 /** 11597 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 11598 * @phba: pointer to lpfc hba data structure. 11599 * 11600 * This routine is called to prepare the SLI4 device for PCI slot reset. It 11601 * disables the device interrupt and pci device, and aborts the internal FCP 11602 * pending I/Os. 11603 **/ 11604 static void 11605 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 11606 { 11607 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11608 "2826 PCI channel disable preparing for reset\n"); 11609 11610 /* Block any management I/Os to the device */ 11611 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 11612 11613 /* Block all SCSI devices' I/Os on the host */ 11614 lpfc_scsi_dev_block(phba); 11615 11616 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 11617 lpfc_sli_flush_fcp_rings(phba); 11618 11619 /* stop all timers */ 11620 lpfc_stop_hba_timers(phba); 11621 11622 /* Disable interrupt and pci device */ 11623 lpfc_sli4_disable_intr(phba); 11624 lpfc_sli4_queue_destroy(phba); 11625 pci_disable_device(phba->pcidev); 11626 } 11627 11628 /** 11629 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 11630 * @phba: pointer to lpfc hba data structure. 11631 * 11632 * This routine is called to prepare the SLI4 device for PCI slot permanently 11633 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 11634 * pending I/Os. 11635 **/ 11636 static void 11637 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 11638 { 11639 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11640 "2827 PCI channel permanent disable for failure\n"); 11641 11642 /* Block all SCSI devices' I/Os on the host */ 11643 lpfc_scsi_dev_block(phba); 11644 11645 /* stop all timers */ 11646 lpfc_stop_hba_timers(phba); 11647 11648 /* Clean up all driver's outstanding SCSI I/Os */ 11649 lpfc_sli_flush_fcp_rings(phba); 11650 } 11651 11652 /** 11653 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 11654 * @pdev: pointer to PCI device. 11655 * @state: the current PCI connection state. 11656 * 11657 * This routine is called from the PCI subsystem for error handling to device 11658 * with SLI-4 interface spec. This function is called by the PCI subsystem 11659 * after a PCI bus error affecting this device has been detected. When this 11660 * function is invoked, it will need to stop all the I/Os and interrupt(s) 11661 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 11662 * for the PCI subsystem to perform proper recovery as desired. 11663 * 11664 * Return codes 11665 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11666 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11667 **/ 11668 static pci_ers_result_t 11669 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 11670 { 11671 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11672 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11673 11674 switch (state) { 11675 case pci_channel_io_normal: 11676 /* Non-fatal error, prepare for recovery */ 11677 lpfc_sli4_prep_dev_for_recover(phba); 11678 return PCI_ERS_RESULT_CAN_RECOVER; 11679 case pci_channel_io_frozen: 11680 /* Fatal error, prepare for slot reset */ 11681 lpfc_sli4_prep_dev_for_reset(phba); 11682 return PCI_ERS_RESULT_NEED_RESET; 11683 case pci_channel_io_perm_failure: 11684 /* Permanent failure, prepare for device down */ 11685 lpfc_sli4_prep_dev_for_perm_failure(phba); 11686 return PCI_ERS_RESULT_DISCONNECT; 11687 default: 11688 /* Unknown state, prepare and request slot reset */ 11689 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11690 "2825 Unknown PCI error state: x%x\n", state); 11691 lpfc_sli4_prep_dev_for_reset(phba); 11692 return PCI_ERS_RESULT_NEED_RESET; 11693 } 11694 } 11695 11696 /** 11697 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 11698 * @pdev: pointer to PCI device. 11699 * 11700 * This routine is called from the PCI subsystem for error handling to device 11701 * with SLI-4 interface spec. It is called after PCI bus has been reset to 11702 * restart the PCI card from scratch, as if from a cold-boot. During the 11703 * PCI subsystem error recovery, after the driver returns 11704 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 11705 * recovery and then call this routine before calling the .resume method to 11706 * recover the device. This function will initialize the HBA device, enable 11707 * the interrupt, but it will just put the HBA to offline state without 11708 * passing any I/O traffic. 11709 * 11710 * Return codes 11711 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11712 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11713 */ 11714 static pci_ers_result_t 11715 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 11716 { 11717 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11718 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11719 struct lpfc_sli *psli = &phba->sli; 11720 uint32_t intr_mode; 11721 11722 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 11723 if (pci_enable_device_mem(pdev)) { 11724 printk(KERN_ERR "lpfc: Cannot re-enable " 11725 "PCI device after reset.\n"); 11726 return PCI_ERS_RESULT_DISCONNECT; 11727 } 11728 11729 pci_restore_state(pdev); 11730 11731 /* 11732 * As the new kernel behavior of pci_restore_state() API call clears 11733 * device saved_state flag, need to save the restored state again. 11734 */ 11735 pci_save_state(pdev); 11736 11737 if (pdev->is_busmaster) 11738 pci_set_master(pdev); 11739 11740 spin_lock_irq(&phba->hbalock); 11741 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 11742 spin_unlock_irq(&phba->hbalock); 11743 11744 /* Configure and enable interrupt */ 11745 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 11746 if (intr_mode == LPFC_INTR_ERROR) { 11747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11748 "2824 Cannot re-enable interrupt after " 11749 "slot reset.\n"); 11750 return PCI_ERS_RESULT_DISCONNECT; 11751 } else 11752 phba->intr_mode = intr_mode; 11753 11754 /* Log the current active interrupt mode */ 11755 lpfc_log_intr_mode(phba, phba->intr_mode); 11756 11757 return PCI_ERS_RESULT_RECOVERED; 11758 } 11759 11760 /** 11761 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 11762 * @pdev: pointer to PCI device 11763 * 11764 * This routine is called from the PCI subsystem for error handling to device 11765 * with SLI-4 interface spec. It is called when kernel error recovery tells 11766 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 11767 * error recovery. After this call, traffic can start to flow from this device 11768 * again. 11769 **/ 11770 static void 11771 lpfc_io_resume_s4(struct pci_dev *pdev) 11772 { 11773 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11774 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11775 11776 /* 11777 * In case of slot reset, as function reset is performed through 11778 * mailbox command which needs DMA to be enabled, this operation 11779 * has to be moved to the io resume phase. Taking device offline 11780 * will perform the necessary cleanup. 11781 */ 11782 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 11783 /* Perform device reset */ 11784 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11785 lpfc_offline(phba); 11786 lpfc_sli_brdrestart(phba); 11787 /* Bring the device back online */ 11788 lpfc_online(phba); 11789 } 11790 11791 /* Clean up Advanced Error Reporting (AER) if needed */ 11792 if (phba->hba_flag & HBA_AER_ENABLED) 11793 pci_cleanup_aer_uncorrect_error_status(pdev); 11794 } 11795 11796 /** 11797 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 11798 * @pdev: pointer to PCI device 11799 * @pid: pointer to PCI device identifier 11800 * 11801 * This routine is to be registered to the kernel's PCI subsystem. When an 11802 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 11803 * at PCI device-specific information of the device and driver to see if the 11804 * driver state that it can support this kind of device. If the match is 11805 * successful, the driver core invokes this routine. This routine dispatches 11806 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 11807 * do all the initialization that it needs to do to handle the HBA device 11808 * properly. 11809 * 11810 * Return code 11811 * 0 - driver can claim the device 11812 * negative value - driver can not claim the device 11813 **/ 11814 static int 11815 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 11816 { 11817 int rc; 11818 struct lpfc_sli_intf intf; 11819 11820 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 11821 return -ENODEV; 11822 11823 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 11824 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 11825 rc = lpfc_pci_probe_one_s4(pdev, pid); 11826 else 11827 rc = lpfc_pci_probe_one_s3(pdev, pid); 11828 11829 return rc; 11830 } 11831 11832 /** 11833 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 11834 * @pdev: pointer to PCI device 11835 * 11836 * This routine is to be registered to the kernel's PCI subsystem. When an 11837 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 11838 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 11839 * remove routine, which will perform all the necessary cleanup for the 11840 * device to be removed from the PCI subsystem properly. 11841 **/ 11842 static void 11843 lpfc_pci_remove_one(struct pci_dev *pdev) 11844 { 11845 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11846 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11847 11848 switch (phba->pci_dev_grp) { 11849 case LPFC_PCI_DEV_LP: 11850 lpfc_pci_remove_one_s3(pdev); 11851 break; 11852 case LPFC_PCI_DEV_OC: 11853 lpfc_pci_remove_one_s4(pdev); 11854 break; 11855 default: 11856 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11857 "1424 Invalid PCI device group: 0x%x\n", 11858 phba->pci_dev_grp); 11859 break; 11860 } 11861 return; 11862 } 11863 11864 /** 11865 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 11866 * @pdev: pointer to PCI device 11867 * @msg: power management message 11868 * 11869 * This routine is to be registered to the kernel's PCI subsystem to support 11870 * system Power Management (PM). When PM invokes this method, it dispatches 11871 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 11872 * suspend the device. 11873 * 11874 * Return code 11875 * 0 - driver suspended the device 11876 * Error otherwise 11877 **/ 11878 static int 11879 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 11880 { 11881 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11882 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11883 int rc = -ENODEV; 11884 11885 switch (phba->pci_dev_grp) { 11886 case LPFC_PCI_DEV_LP: 11887 rc = lpfc_pci_suspend_one_s3(pdev, msg); 11888 break; 11889 case LPFC_PCI_DEV_OC: 11890 rc = lpfc_pci_suspend_one_s4(pdev, msg); 11891 break; 11892 default: 11893 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11894 "1425 Invalid PCI device group: 0x%x\n", 11895 phba->pci_dev_grp); 11896 break; 11897 } 11898 return rc; 11899 } 11900 11901 /** 11902 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 11903 * @pdev: pointer to PCI device 11904 * 11905 * This routine is to be registered to the kernel's PCI subsystem to support 11906 * system Power Management (PM). When PM invokes this method, it dispatches 11907 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 11908 * resume the device. 11909 * 11910 * Return code 11911 * 0 - driver suspended the device 11912 * Error otherwise 11913 **/ 11914 static int 11915 lpfc_pci_resume_one(struct pci_dev *pdev) 11916 { 11917 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11918 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11919 int rc = -ENODEV; 11920 11921 switch (phba->pci_dev_grp) { 11922 case LPFC_PCI_DEV_LP: 11923 rc = lpfc_pci_resume_one_s3(pdev); 11924 break; 11925 case LPFC_PCI_DEV_OC: 11926 rc = lpfc_pci_resume_one_s4(pdev); 11927 break; 11928 default: 11929 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11930 "1426 Invalid PCI device group: 0x%x\n", 11931 phba->pci_dev_grp); 11932 break; 11933 } 11934 return rc; 11935 } 11936 11937 /** 11938 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 11939 * @pdev: pointer to PCI device. 11940 * @state: the current PCI connection state. 11941 * 11942 * This routine is registered to the PCI subsystem for error handling. This 11943 * function is called by the PCI subsystem after a PCI bus error affecting 11944 * this device has been detected. When this routine is invoked, it dispatches 11945 * the action to the proper SLI-3 or SLI-4 device error detected handling 11946 * routine, which will perform the proper error detected operation. 11947 * 11948 * Return codes 11949 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11950 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11951 **/ 11952 static pci_ers_result_t 11953 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 11954 { 11955 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11956 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11957 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11958 11959 switch (phba->pci_dev_grp) { 11960 case LPFC_PCI_DEV_LP: 11961 rc = lpfc_io_error_detected_s3(pdev, state); 11962 break; 11963 case LPFC_PCI_DEV_OC: 11964 rc = lpfc_io_error_detected_s4(pdev, state); 11965 break; 11966 default: 11967 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11968 "1427 Invalid PCI device group: 0x%x\n", 11969 phba->pci_dev_grp); 11970 break; 11971 } 11972 return rc; 11973 } 11974 11975 /** 11976 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 11977 * @pdev: pointer to PCI device. 11978 * 11979 * This routine is registered to the PCI subsystem for error handling. This 11980 * function is called after PCI bus has been reset to restart the PCI card 11981 * from scratch, as if from a cold-boot. When this routine is invoked, it 11982 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 11983 * routine, which will perform the proper device reset. 11984 * 11985 * Return codes 11986 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11987 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11988 **/ 11989 static pci_ers_result_t 11990 lpfc_io_slot_reset(struct pci_dev *pdev) 11991 { 11992 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11993 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11994 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11995 11996 switch (phba->pci_dev_grp) { 11997 case LPFC_PCI_DEV_LP: 11998 rc = lpfc_io_slot_reset_s3(pdev); 11999 break; 12000 case LPFC_PCI_DEV_OC: 12001 rc = lpfc_io_slot_reset_s4(pdev); 12002 break; 12003 default: 12004 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12005 "1428 Invalid PCI device group: 0x%x\n", 12006 phba->pci_dev_grp); 12007 break; 12008 } 12009 return rc; 12010 } 12011 12012 /** 12013 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 12014 * @pdev: pointer to PCI device 12015 * 12016 * This routine is registered to the PCI subsystem for error handling. It 12017 * is called when kernel error recovery tells the lpfc driver that it is 12018 * OK to resume normal PCI operation after PCI bus error recovery. When 12019 * this routine is invoked, it dispatches the action to the proper SLI-3 12020 * or SLI-4 device io_resume routine, which will resume the device operation. 12021 **/ 12022 static void 12023 lpfc_io_resume(struct pci_dev *pdev) 12024 { 12025 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12026 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12027 12028 switch (phba->pci_dev_grp) { 12029 case LPFC_PCI_DEV_LP: 12030 lpfc_io_resume_s3(pdev); 12031 break; 12032 case LPFC_PCI_DEV_OC: 12033 lpfc_io_resume_s4(pdev); 12034 break; 12035 default: 12036 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12037 "1429 Invalid PCI device group: 0x%x\n", 12038 phba->pci_dev_grp); 12039 break; 12040 } 12041 return; 12042 } 12043 12044 /** 12045 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter 12046 * @phba: pointer to lpfc hba data structure. 12047 * 12048 * This routine checks to see if OAS is supported for this adapter. If 12049 * supported, the configure Flash Optimized Fabric flag is set. Otherwise, 12050 * the enable oas flag is cleared and the pool created for OAS device data 12051 * is destroyed. 12052 * 12053 **/ 12054 void 12055 lpfc_sli4_oas_verify(struct lpfc_hba *phba) 12056 { 12057 12058 if (!phba->cfg_EnableXLane) 12059 return; 12060 12061 if (phba->sli4_hba.pc_sli4_params.oas_supported) { 12062 phba->cfg_fof = 1; 12063 } else { 12064 phba->cfg_fof = 0; 12065 if (phba->device_data_mem_pool) 12066 mempool_destroy(phba->device_data_mem_pool); 12067 phba->device_data_mem_pool = NULL; 12068 } 12069 12070 return; 12071 } 12072 12073 /** 12074 * lpfc_fof_queue_setup - Set up all the fof queues 12075 * @phba: pointer to lpfc hba data structure. 12076 * 12077 * This routine is invoked to set up all the fof queues for the FC HBA 12078 * operation. 12079 * 12080 * Return codes 12081 * 0 - successful 12082 * -ENOMEM - No available memory 12083 **/ 12084 int 12085 lpfc_fof_queue_setup(struct lpfc_hba *phba) 12086 { 12087 struct lpfc_sli_ring *pring; 12088 int rc; 12089 12090 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX); 12091 if (rc) 12092 return -ENOMEM; 12093 12094 if (phba->cfg_fof) { 12095 12096 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq, 12097 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP); 12098 if (rc) 12099 goto out_oas_cq; 12100 12101 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq, 12102 phba->sli4_hba.oas_cq, LPFC_FCP); 12103 if (rc) 12104 goto out_oas_wq; 12105 12106 /* Bind this CQ/WQ to the NVME ring */ 12107 pring = phba->sli4_hba.oas_wq->pring; 12108 pring->sli.sli4.wqp = 12109 (void *)phba->sli4_hba.oas_wq; 12110 phba->sli4_hba.oas_cq->pring = pring; 12111 } 12112 12113 return 0; 12114 12115 out_oas_wq: 12116 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq); 12117 out_oas_cq: 12118 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq); 12119 return rc; 12120 12121 } 12122 12123 /** 12124 * lpfc_fof_queue_create - Create all the fof queues 12125 * @phba: pointer to lpfc hba data structure. 12126 * 12127 * This routine is invoked to allocate all the fof queues for the FC HBA 12128 * operation. For each SLI4 queue type, the parameters such as queue entry 12129 * count (queue depth) shall be taken from the module parameter. For now, 12130 * we just use some constant number as place holder. 12131 * 12132 * Return codes 12133 * 0 - successful 12134 * -ENOMEM - No availble memory 12135 * -EIO - The mailbox failed to complete successfully. 12136 **/ 12137 int 12138 lpfc_fof_queue_create(struct lpfc_hba *phba) 12139 { 12140 struct lpfc_queue *qdesc; 12141 uint32_t wqesize; 12142 12143 /* Create FOF EQ */ 12144 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 12145 phba->sli4_hba.eq_ecount); 12146 if (!qdesc) 12147 goto out_error; 12148 12149 phba->sli4_hba.fof_eq = qdesc; 12150 12151 if (phba->cfg_fof) { 12152 12153 /* Create OAS CQ */ 12154 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 12155 phba->sli4_hba.cq_ecount); 12156 if (!qdesc) 12157 goto out_error; 12158 12159 phba->sli4_hba.oas_cq = qdesc; 12160 12161 /* Create OAS WQ */ 12162 wqesize = (phba->fcp_embed_io) ? 12163 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 12164 qdesc = lpfc_sli4_queue_alloc(phba, wqesize, 12165 phba->sli4_hba.wq_ecount); 12166 12167 if (!qdesc) 12168 goto out_error; 12169 12170 phba->sli4_hba.oas_wq = qdesc; 12171 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 12172 12173 } 12174 return 0; 12175 12176 out_error: 12177 lpfc_fof_queue_destroy(phba); 12178 return -ENOMEM; 12179 } 12180 12181 /** 12182 * lpfc_fof_queue_destroy - Destroy all the fof queues 12183 * @phba: pointer to lpfc hba data structure. 12184 * 12185 * This routine is invoked to release all the SLI4 queues with the FC HBA 12186 * operation. 12187 * 12188 * Return codes 12189 * 0 - successful 12190 **/ 12191 int 12192 lpfc_fof_queue_destroy(struct lpfc_hba *phba) 12193 { 12194 /* Release FOF Event queue */ 12195 if (phba->sli4_hba.fof_eq != NULL) { 12196 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq); 12197 phba->sli4_hba.fof_eq = NULL; 12198 } 12199 12200 /* Release OAS Completion queue */ 12201 if (phba->sli4_hba.oas_cq != NULL) { 12202 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq); 12203 phba->sli4_hba.oas_cq = NULL; 12204 } 12205 12206 /* Release OAS Work queue */ 12207 if (phba->sli4_hba.oas_wq != NULL) { 12208 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq); 12209 phba->sli4_hba.oas_wq = NULL; 12210 } 12211 return 0; 12212 } 12213 12214 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 12215 12216 static const struct pci_error_handlers lpfc_err_handler = { 12217 .error_detected = lpfc_io_error_detected, 12218 .slot_reset = lpfc_io_slot_reset, 12219 .resume = lpfc_io_resume, 12220 }; 12221 12222 static struct pci_driver lpfc_driver = { 12223 .name = LPFC_DRIVER_NAME, 12224 .id_table = lpfc_id_table, 12225 .probe = lpfc_pci_probe_one, 12226 .remove = lpfc_pci_remove_one, 12227 .shutdown = lpfc_pci_remove_one, 12228 .suspend = lpfc_pci_suspend_one, 12229 .resume = lpfc_pci_resume_one, 12230 .err_handler = &lpfc_err_handler, 12231 }; 12232 12233 static const struct file_operations lpfc_mgmt_fop = { 12234 .owner = THIS_MODULE, 12235 }; 12236 12237 static struct miscdevice lpfc_mgmt_dev = { 12238 .minor = MISC_DYNAMIC_MINOR, 12239 .name = "lpfcmgmt", 12240 .fops = &lpfc_mgmt_fop, 12241 }; 12242 12243 /** 12244 * lpfc_init - lpfc module initialization routine 12245 * 12246 * This routine is to be invoked when the lpfc module is loaded into the 12247 * kernel. The special kernel macro module_init() is used to indicate the 12248 * role of this routine to the kernel as lpfc module entry point. 12249 * 12250 * Return codes 12251 * 0 - successful 12252 * -ENOMEM - FC attach transport failed 12253 * all others - failed 12254 */ 12255 static int __init 12256 lpfc_init(void) 12257 { 12258 int error = 0; 12259 12260 printk(LPFC_MODULE_DESC "\n"); 12261 printk(LPFC_COPYRIGHT "\n"); 12262 12263 error = misc_register(&lpfc_mgmt_dev); 12264 if (error) 12265 printk(KERN_ERR "Could not register lpfcmgmt device, " 12266 "misc_register returned with status %d", error); 12267 12268 lpfc_transport_functions.vport_create = lpfc_vport_create; 12269 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 12270 lpfc_transport_template = 12271 fc_attach_transport(&lpfc_transport_functions); 12272 if (lpfc_transport_template == NULL) 12273 return -ENOMEM; 12274 lpfc_vport_transport_template = 12275 fc_attach_transport(&lpfc_vport_transport_functions); 12276 if (lpfc_vport_transport_template == NULL) { 12277 fc_release_transport(lpfc_transport_template); 12278 return -ENOMEM; 12279 } 12280 12281 /* Initialize in case vector mapping is needed */ 12282 lpfc_used_cpu = NULL; 12283 lpfc_present_cpu = num_present_cpus(); 12284 12285 error = pci_register_driver(&lpfc_driver); 12286 if (error) { 12287 fc_release_transport(lpfc_transport_template); 12288 fc_release_transport(lpfc_vport_transport_template); 12289 } 12290 12291 return error; 12292 } 12293 12294 /** 12295 * lpfc_exit - lpfc module removal routine 12296 * 12297 * This routine is invoked when the lpfc module is removed from the kernel. 12298 * The special kernel macro module_exit() is used to indicate the role of 12299 * this routine to the kernel as lpfc module exit point. 12300 */ 12301 static void __exit 12302 lpfc_exit(void) 12303 { 12304 misc_deregister(&lpfc_mgmt_dev); 12305 pci_unregister_driver(&lpfc_driver); 12306 fc_release_transport(lpfc_transport_template); 12307 fc_release_transport(lpfc_vport_transport_template); 12308 if (_dump_buf_data) { 12309 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 12310 "_dump_buf_data at 0x%p\n", 12311 (1L << _dump_buf_data_order), _dump_buf_data); 12312 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 12313 } 12314 12315 if (_dump_buf_dif) { 12316 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 12317 "_dump_buf_dif at 0x%p\n", 12318 (1L << _dump_buf_dif_order), _dump_buf_dif); 12319 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 12320 } 12321 kfree(lpfc_used_cpu); 12322 idr_destroy(&lpfc_hba_index); 12323 } 12324 12325 module_init(lpfc_init); 12326 module_exit(lpfc_exit); 12327 MODULE_LICENSE("GPL"); 12328 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 12329 MODULE_AUTHOR("Broadcom"); 12330 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 12331