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(unsigned long ptr) 1142 { 1143 struct lpfc_hba *phba; 1144 uint32_t tmo_posted; 1145 unsigned long iflag; 1146 1147 phba = (struct lpfc_hba *)ptr; 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(unsigned long ptr) 1176 { 1177 struct lpfc_hba *phba; 1178 unsigned long iflag; 1179 1180 phba = (struct lpfc_hba *)ptr; 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 3221 /** 3222 * lpfc_offline - Bring a HBA offline 3223 * @phba: pointer to lpfc hba data structure. 3224 * 3225 * This routine actually brings a HBA offline. It stops all the timers 3226 * associated with the HBA, brings down the SLI layer, and eventually 3227 * marks the HBA as in offline state for the upper layer protocol. 3228 **/ 3229 void 3230 lpfc_offline(struct lpfc_hba *phba) 3231 { 3232 struct Scsi_Host *shost; 3233 struct lpfc_vport **vports; 3234 int i; 3235 3236 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 3237 return; 3238 3239 /* stop port and all timers associated with this hba */ 3240 lpfc_stop_port(phba); 3241 3242 /* Tear down the local and target port registrations. The 3243 * nvme transports need to cleanup. 3244 */ 3245 lpfc_nvmet_destroy_targetport(phba); 3246 lpfc_nvme_destroy_localport(phba->pport); 3247 3248 vports = lpfc_create_vport_work_array(phba); 3249 if (vports != NULL) 3250 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3251 lpfc_stop_vport_timers(vports[i]); 3252 lpfc_destroy_vport_work_array(phba, vports); 3253 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3254 "0460 Bring Adapter offline\n"); 3255 /* Bring down the SLI Layer and cleanup. The HBA is offline 3256 now. */ 3257 lpfc_sli_hba_down(phba); 3258 spin_lock_irq(&phba->hbalock); 3259 phba->work_ha = 0; 3260 spin_unlock_irq(&phba->hbalock); 3261 vports = lpfc_create_vport_work_array(phba); 3262 if (vports != NULL) 3263 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3264 shost = lpfc_shost_from_vport(vports[i]); 3265 spin_lock_irq(shost->host_lock); 3266 vports[i]->work_port_events = 0; 3267 vports[i]->fc_flag |= FC_OFFLINE_MODE; 3268 spin_unlock_irq(shost->host_lock); 3269 } 3270 lpfc_destroy_vport_work_array(phba, vports); 3271 } 3272 3273 /** 3274 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 3275 * @phba: pointer to lpfc hba data structure. 3276 * 3277 * This routine is to free all the SCSI buffers and IOCBs from the driver 3278 * list back to kernel. It is called from lpfc_pci_remove_one to free 3279 * the internal resources before the device is removed from the system. 3280 **/ 3281 static void 3282 lpfc_scsi_free(struct lpfc_hba *phba) 3283 { 3284 struct lpfc_scsi_buf *sb, *sb_next; 3285 3286 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 3287 return; 3288 3289 spin_lock_irq(&phba->hbalock); 3290 3291 /* Release all the lpfc_scsi_bufs maintained by this host. */ 3292 3293 spin_lock(&phba->scsi_buf_list_put_lock); 3294 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put, 3295 list) { 3296 list_del(&sb->list); 3297 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3298 sb->dma_handle); 3299 kfree(sb); 3300 phba->total_scsi_bufs--; 3301 } 3302 spin_unlock(&phba->scsi_buf_list_put_lock); 3303 3304 spin_lock(&phba->scsi_buf_list_get_lock); 3305 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get, 3306 list) { 3307 list_del(&sb->list); 3308 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3309 sb->dma_handle); 3310 kfree(sb); 3311 phba->total_scsi_bufs--; 3312 } 3313 spin_unlock(&phba->scsi_buf_list_get_lock); 3314 spin_unlock_irq(&phba->hbalock); 3315 } 3316 /** 3317 * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists 3318 * @phba: pointer to lpfc hba data structure. 3319 * 3320 * This routine is to free all the NVME buffers and IOCBs from the driver 3321 * list back to kernel. It is called from lpfc_pci_remove_one to free 3322 * the internal resources before the device is removed from the system. 3323 **/ 3324 static void 3325 lpfc_nvme_free(struct lpfc_hba *phba) 3326 { 3327 struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next; 3328 3329 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 3330 return; 3331 3332 spin_lock_irq(&phba->hbalock); 3333 3334 /* Release all the lpfc_nvme_bufs maintained by this host. */ 3335 spin_lock(&phba->nvme_buf_list_put_lock); 3336 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3337 &phba->lpfc_nvme_buf_list_put, list) { 3338 list_del(&lpfc_ncmd->list); 3339 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, 3340 lpfc_ncmd->dma_handle); 3341 kfree(lpfc_ncmd); 3342 phba->total_nvme_bufs--; 3343 } 3344 spin_unlock(&phba->nvme_buf_list_put_lock); 3345 3346 spin_lock(&phba->nvme_buf_list_get_lock); 3347 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3348 &phba->lpfc_nvme_buf_list_get, list) { 3349 list_del(&lpfc_ncmd->list); 3350 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, 3351 lpfc_ncmd->dma_handle); 3352 kfree(lpfc_ncmd); 3353 phba->total_nvme_bufs--; 3354 } 3355 spin_unlock(&phba->nvme_buf_list_get_lock); 3356 spin_unlock_irq(&phba->hbalock); 3357 } 3358 /** 3359 * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping 3360 * @phba: pointer to lpfc hba data structure. 3361 * 3362 * This routine first calculates the sizes of the current els and allocated 3363 * scsi sgl lists, and then goes through all sgls to updates the physical 3364 * XRIs assigned due to port function reset. During port initialization, the 3365 * current els and allocated scsi sgl lists are 0s. 3366 * 3367 * Return codes 3368 * 0 - successful (for now, it always returns 0) 3369 **/ 3370 int 3371 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba) 3372 { 3373 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3374 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3375 LIST_HEAD(els_sgl_list); 3376 int rc; 3377 3378 /* 3379 * update on pci function's els xri-sgl list 3380 */ 3381 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3382 3383 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 3384 /* els xri-sgl expanded */ 3385 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 3386 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3387 "3157 ELS xri-sgl count increased from " 3388 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3389 els_xri_cnt); 3390 /* allocate the additional els sgls */ 3391 for (i = 0; i < xri_cnt; i++) { 3392 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3393 GFP_KERNEL); 3394 if (sglq_entry == NULL) { 3395 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3396 "2562 Failure to allocate an " 3397 "ELS sgl entry:%d\n", i); 3398 rc = -ENOMEM; 3399 goto out_free_mem; 3400 } 3401 sglq_entry->buff_type = GEN_BUFF_TYPE; 3402 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 3403 &sglq_entry->phys); 3404 if (sglq_entry->virt == NULL) { 3405 kfree(sglq_entry); 3406 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3407 "2563 Failure to allocate an " 3408 "ELS mbuf:%d\n", i); 3409 rc = -ENOMEM; 3410 goto out_free_mem; 3411 } 3412 sglq_entry->sgl = sglq_entry->virt; 3413 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 3414 sglq_entry->state = SGL_FREED; 3415 list_add_tail(&sglq_entry->list, &els_sgl_list); 3416 } 3417 spin_lock_irq(&phba->hbalock); 3418 spin_lock(&phba->sli4_hba.sgl_list_lock); 3419 list_splice_init(&els_sgl_list, 3420 &phba->sli4_hba.lpfc_els_sgl_list); 3421 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3422 spin_unlock_irq(&phba->hbalock); 3423 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 3424 /* els xri-sgl shrinked */ 3425 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 3426 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3427 "3158 ELS xri-sgl count decreased from " 3428 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3429 els_xri_cnt); 3430 spin_lock_irq(&phba->hbalock); 3431 spin_lock(&phba->sli4_hba.sgl_list_lock); 3432 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, 3433 &els_sgl_list); 3434 /* release extra els sgls from list */ 3435 for (i = 0; i < xri_cnt; i++) { 3436 list_remove_head(&els_sgl_list, 3437 sglq_entry, struct lpfc_sglq, list); 3438 if (sglq_entry) { 3439 __lpfc_mbuf_free(phba, sglq_entry->virt, 3440 sglq_entry->phys); 3441 kfree(sglq_entry); 3442 } 3443 } 3444 list_splice_init(&els_sgl_list, 3445 &phba->sli4_hba.lpfc_els_sgl_list); 3446 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3447 spin_unlock_irq(&phba->hbalock); 3448 } else 3449 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3450 "3163 ELS xri-sgl count unchanged: %d\n", 3451 els_xri_cnt); 3452 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 3453 3454 /* update xris to els sgls on the list */ 3455 sglq_entry = NULL; 3456 sglq_entry_next = NULL; 3457 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3458 &phba->sli4_hba.lpfc_els_sgl_list, list) { 3459 lxri = lpfc_sli4_next_xritag(phba); 3460 if (lxri == NO_XRI) { 3461 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3462 "2400 Failed to allocate xri for " 3463 "ELS sgl\n"); 3464 rc = -ENOMEM; 3465 goto out_free_mem; 3466 } 3467 sglq_entry->sli4_lxritag = lxri; 3468 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3469 } 3470 return 0; 3471 3472 out_free_mem: 3473 lpfc_free_els_sgl_list(phba); 3474 return rc; 3475 } 3476 3477 /** 3478 * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping 3479 * @phba: pointer to lpfc hba data structure. 3480 * 3481 * This routine first calculates the sizes of the current els and allocated 3482 * scsi sgl lists, and then goes through all sgls to updates the physical 3483 * XRIs assigned due to port function reset. During port initialization, the 3484 * current els and allocated scsi sgl lists are 0s. 3485 * 3486 * Return codes 3487 * 0 - successful (for now, it always returns 0) 3488 **/ 3489 int 3490 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba) 3491 { 3492 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3493 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3494 uint16_t nvmet_xri_cnt; 3495 LIST_HEAD(nvmet_sgl_list); 3496 int rc; 3497 3498 /* 3499 * update on pci function's nvmet xri-sgl list 3500 */ 3501 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3502 3503 /* For NVMET, ALL remaining XRIs are dedicated for IO processing */ 3504 nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3505 if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) { 3506 /* els xri-sgl expanded */ 3507 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt; 3508 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3509 "6302 NVMET xri-sgl cnt grew from %d to %d\n", 3510 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt); 3511 /* allocate the additional nvmet sgls */ 3512 for (i = 0; i < xri_cnt; i++) { 3513 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3514 GFP_KERNEL); 3515 if (sglq_entry == NULL) { 3516 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3517 "6303 Failure to allocate an " 3518 "NVMET sgl entry:%d\n", i); 3519 rc = -ENOMEM; 3520 goto out_free_mem; 3521 } 3522 sglq_entry->buff_type = NVMET_BUFF_TYPE; 3523 sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0, 3524 &sglq_entry->phys); 3525 if (sglq_entry->virt == NULL) { 3526 kfree(sglq_entry); 3527 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3528 "6304 Failure to allocate an " 3529 "NVMET buf:%d\n", i); 3530 rc = -ENOMEM; 3531 goto out_free_mem; 3532 } 3533 sglq_entry->sgl = sglq_entry->virt; 3534 memset(sglq_entry->sgl, 0, 3535 phba->cfg_sg_dma_buf_size); 3536 sglq_entry->state = SGL_FREED; 3537 list_add_tail(&sglq_entry->list, &nvmet_sgl_list); 3538 } 3539 spin_lock_irq(&phba->hbalock); 3540 spin_lock(&phba->sli4_hba.sgl_list_lock); 3541 list_splice_init(&nvmet_sgl_list, 3542 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3543 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3544 spin_unlock_irq(&phba->hbalock); 3545 } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) { 3546 /* nvmet xri-sgl shrunk */ 3547 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt; 3548 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3549 "6305 NVMET xri-sgl count decreased from " 3550 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt, 3551 nvmet_xri_cnt); 3552 spin_lock_irq(&phba->hbalock); 3553 spin_lock(&phba->sli4_hba.sgl_list_lock); 3554 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, 3555 &nvmet_sgl_list); 3556 /* release extra nvmet sgls from list */ 3557 for (i = 0; i < xri_cnt; i++) { 3558 list_remove_head(&nvmet_sgl_list, 3559 sglq_entry, struct lpfc_sglq, list); 3560 if (sglq_entry) { 3561 lpfc_nvmet_buf_free(phba, sglq_entry->virt, 3562 sglq_entry->phys); 3563 kfree(sglq_entry); 3564 } 3565 } 3566 list_splice_init(&nvmet_sgl_list, 3567 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3568 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3569 spin_unlock_irq(&phba->hbalock); 3570 } else 3571 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3572 "6306 NVMET xri-sgl count unchanged: %d\n", 3573 nvmet_xri_cnt); 3574 phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt; 3575 3576 /* update xris to nvmet sgls on the list */ 3577 sglq_entry = NULL; 3578 sglq_entry_next = NULL; 3579 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3580 &phba->sli4_hba.lpfc_nvmet_sgl_list, list) { 3581 lxri = lpfc_sli4_next_xritag(phba); 3582 if (lxri == NO_XRI) { 3583 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3584 "6307 Failed to allocate xri for " 3585 "NVMET sgl\n"); 3586 rc = -ENOMEM; 3587 goto out_free_mem; 3588 } 3589 sglq_entry->sli4_lxritag = lxri; 3590 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3591 } 3592 return 0; 3593 3594 out_free_mem: 3595 lpfc_free_nvmet_sgl_list(phba); 3596 return rc; 3597 } 3598 3599 /** 3600 * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping 3601 * @phba: pointer to lpfc hba data structure. 3602 * 3603 * This routine first calculates the sizes of the current els and allocated 3604 * scsi sgl lists, and then goes through all sgls to updates the physical 3605 * XRIs assigned due to port function reset. During port initialization, the 3606 * current els and allocated scsi sgl lists are 0s. 3607 * 3608 * Return codes 3609 * 0 - successful (for now, it always returns 0) 3610 **/ 3611 int 3612 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba) 3613 { 3614 struct lpfc_scsi_buf *psb, *psb_next; 3615 uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt; 3616 LIST_HEAD(scsi_sgl_list); 3617 int rc; 3618 3619 /* 3620 * update on pci function's els xri-sgl list 3621 */ 3622 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3623 phba->total_scsi_bufs = 0; 3624 3625 /* 3626 * update on pci function's allocated scsi xri-sgl list 3627 */ 3628 /* maximum number of xris available for scsi buffers */ 3629 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - 3630 els_xri_cnt; 3631 3632 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 3633 return 0; 3634 3635 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 3636 phba->sli4_hba.scsi_xri_max = /* Split them up */ 3637 (phba->sli4_hba.scsi_xri_max * 3638 phba->cfg_xri_split) / 100; 3639 3640 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3641 spin_lock(&phba->scsi_buf_list_put_lock); 3642 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list); 3643 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list); 3644 spin_unlock(&phba->scsi_buf_list_put_lock); 3645 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3646 3647 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3648 "6060 Current allocated SCSI xri-sgl count:%d, " 3649 "maximum SCSI xri count:%d (split:%d)\n", 3650 phba->sli4_hba.scsi_xri_cnt, 3651 phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split); 3652 3653 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { 3654 /* max scsi xri shrinked below the allocated scsi buffers */ 3655 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - 3656 phba->sli4_hba.scsi_xri_max; 3657 /* release the extra allocated scsi buffers */ 3658 for (i = 0; i < scsi_xri_cnt; i++) { 3659 list_remove_head(&scsi_sgl_list, psb, 3660 struct lpfc_scsi_buf, list); 3661 if (psb) { 3662 dma_pool_free(phba->lpfc_sg_dma_buf_pool, 3663 psb->data, psb->dma_handle); 3664 kfree(psb); 3665 } 3666 } 3667 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3668 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; 3669 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3670 } 3671 3672 /* update xris associated to remaining allocated scsi buffers */ 3673 psb = NULL; 3674 psb_next = NULL; 3675 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { 3676 lxri = lpfc_sli4_next_xritag(phba); 3677 if (lxri == NO_XRI) { 3678 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3679 "2560 Failed to allocate xri for " 3680 "scsi buffer\n"); 3681 rc = -ENOMEM; 3682 goto out_free_mem; 3683 } 3684 psb->cur_iocbq.sli4_lxritag = lxri; 3685 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3686 } 3687 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3688 spin_lock(&phba->scsi_buf_list_put_lock); 3689 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get); 3690 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 3691 spin_unlock(&phba->scsi_buf_list_put_lock); 3692 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3693 return 0; 3694 3695 out_free_mem: 3696 lpfc_scsi_free(phba); 3697 return rc; 3698 } 3699 3700 static uint64_t 3701 lpfc_get_wwpn(struct lpfc_hba *phba) 3702 { 3703 uint64_t wwn; 3704 int rc; 3705 LPFC_MBOXQ_t *mboxq; 3706 MAILBOX_t *mb; 3707 3708 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 3709 GFP_KERNEL); 3710 if (!mboxq) 3711 return (uint64_t)-1; 3712 3713 /* First get WWN of HBA instance */ 3714 lpfc_read_nv(phba, mboxq); 3715 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 3716 if (rc != MBX_SUCCESS) { 3717 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3718 "6019 Mailbox failed , mbxCmd x%x " 3719 "READ_NV, mbxStatus x%x\n", 3720 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 3721 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 3722 mempool_free(mboxq, phba->mbox_mem_pool); 3723 return (uint64_t) -1; 3724 } 3725 mb = &mboxq->u.mb; 3726 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t)); 3727 /* wwn is WWPN of HBA instance */ 3728 mempool_free(mboxq, phba->mbox_mem_pool); 3729 if (phba->sli_rev == LPFC_SLI_REV4) 3730 return be64_to_cpu(wwn); 3731 else 3732 return rol64(wwn, 32); 3733 } 3734 3735 /** 3736 * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping 3737 * @phba: pointer to lpfc hba data structure. 3738 * 3739 * This routine first calculates the sizes of the current els and allocated 3740 * scsi sgl lists, and then goes through all sgls to updates the physical 3741 * XRIs assigned due to port function reset. During port initialization, the 3742 * current els and allocated scsi sgl lists are 0s. 3743 * 3744 * Return codes 3745 * 0 - successful (for now, it always returns 0) 3746 **/ 3747 int 3748 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba) 3749 { 3750 struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL; 3751 uint16_t i, lxri, els_xri_cnt; 3752 uint16_t nvme_xri_cnt, nvme_xri_max; 3753 LIST_HEAD(nvme_sgl_list); 3754 int rc; 3755 3756 phba->total_nvme_bufs = 0; 3757 3758 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 3759 return 0; 3760 /* 3761 * update on pci function's allocated nvme xri-sgl list 3762 */ 3763 3764 /* maximum number of xris available for nvme buffers */ 3765 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3766 nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3767 phba->sli4_hba.nvme_xri_max = nvme_xri_max; 3768 phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max; 3769 3770 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3771 "6074 Current allocated NVME xri-sgl count:%d, " 3772 "maximum NVME xri count:%d\n", 3773 phba->sli4_hba.nvme_xri_cnt, 3774 phba->sli4_hba.nvme_xri_max); 3775 3776 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3777 spin_lock(&phba->nvme_buf_list_put_lock); 3778 list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list); 3779 list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list); 3780 spin_unlock(&phba->nvme_buf_list_put_lock); 3781 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3782 3783 if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) { 3784 /* max nvme xri shrunk below the allocated nvme buffers */ 3785 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3786 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt - 3787 phba->sli4_hba.nvme_xri_max; 3788 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3789 /* release the extra allocated nvme buffers */ 3790 for (i = 0; i < nvme_xri_cnt; i++) { 3791 list_remove_head(&nvme_sgl_list, lpfc_ncmd, 3792 struct lpfc_nvme_buf, list); 3793 if (lpfc_ncmd) { 3794 dma_pool_free(phba->lpfc_sg_dma_buf_pool, 3795 lpfc_ncmd->data, 3796 lpfc_ncmd->dma_handle); 3797 kfree(lpfc_ncmd); 3798 } 3799 } 3800 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3801 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt; 3802 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3803 } 3804 3805 /* update xris associated to remaining allocated nvme buffers */ 3806 lpfc_ncmd = NULL; 3807 lpfc_ncmd_next = NULL; 3808 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3809 &nvme_sgl_list, list) { 3810 lxri = lpfc_sli4_next_xritag(phba); 3811 if (lxri == NO_XRI) { 3812 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3813 "6075 Failed to allocate xri for " 3814 "nvme buffer\n"); 3815 rc = -ENOMEM; 3816 goto out_free_mem; 3817 } 3818 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri; 3819 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3820 } 3821 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3822 spin_lock(&phba->nvme_buf_list_put_lock); 3823 list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get); 3824 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 3825 spin_unlock(&phba->nvme_buf_list_put_lock); 3826 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3827 return 0; 3828 3829 out_free_mem: 3830 lpfc_nvme_free(phba); 3831 return rc; 3832 } 3833 3834 /** 3835 * lpfc_create_port - Create an FC port 3836 * @phba: pointer to lpfc hba data structure. 3837 * @instance: a unique integer ID to this FC port. 3838 * @dev: pointer to the device data structure. 3839 * 3840 * This routine creates a FC port for the upper layer protocol. The FC port 3841 * can be created on top of either a physical port or a virtual port provided 3842 * by the HBA. This routine also allocates a SCSI host data structure (shost) 3843 * and associates the FC port created before adding the shost into the SCSI 3844 * layer. 3845 * 3846 * Return codes 3847 * @vport - pointer to the virtual N_Port data structure. 3848 * NULL - port create failed. 3849 **/ 3850 struct lpfc_vport * 3851 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 3852 { 3853 struct lpfc_vport *vport; 3854 struct Scsi_Host *shost = NULL; 3855 int error = 0; 3856 int i; 3857 uint64_t wwn; 3858 bool use_no_reset_hba = false; 3859 int rc; 3860 3861 if (lpfc_no_hba_reset_cnt) { 3862 if (phba->sli_rev < LPFC_SLI_REV4 && 3863 dev == &phba->pcidev->dev) { 3864 /* Reset the port first */ 3865 lpfc_sli_brdrestart(phba); 3866 rc = lpfc_sli_chipset_init(phba); 3867 if (rc) 3868 return NULL; 3869 } 3870 wwn = lpfc_get_wwpn(phba); 3871 } 3872 3873 for (i = 0; i < lpfc_no_hba_reset_cnt; i++) { 3874 if (wwn == lpfc_no_hba_reset[i]) { 3875 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3876 "6020 Setting use_no_reset port=%llx\n", 3877 wwn); 3878 use_no_reset_hba = true; 3879 break; 3880 } 3881 } 3882 3883 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 3884 if (dev != &phba->pcidev->dev) { 3885 shost = scsi_host_alloc(&lpfc_vport_template, 3886 sizeof(struct lpfc_vport)); 3887 } else { 3888 if (!use_no_reset_hba) 3889 shost = scsi_host_alloc(&lpfc_template, 3890 sizeof(struct lpfc_vport)); 3891 else 3892 shost = scsi_host_alloc(&lpfc_template_no_hr, 3893 sizeof(struct lpfc_vport)); 3894 } 3895 } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 3896 shost = scsi_host_alloc(&lpfc_template_nvme, 3897 sizeof(struct lpfc_vport)); 3898 } 3899 if (!shost) 3900 goto out; 3901 3902 vport = (struct lpfc_vport *) shost->hostdata; 3903 vport->phba = phba; 3904 vport->load_flag |= FC_LOADING; 3905 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3906 vport->fc_rscn_flush = 0; 3907 lpfc_get_vport_cfgparam(vport); 3908 3909 shost->unique_id = instance; 3910 shost->max_id = LPFC_MAX_TARGET; 3911 shost->max_lun = vport->cfg_max_luns; 3912 shost->this_id = -1; 3913 shost->max_cmd_len = 16; 3914 shost->nr_hw_queues = phba->cfg_fcp_io_channel; 3915 if (phba->sli_rev == LPFC_SLI_REV4) { 3916 shost->dma_boundary = 3917 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3918 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 3919 } 3920 3921 /* 3922 * Set initial can_queue value since 0 is no longer supported and 3923 * scsi_add_host will fail. This will be adjusted later based on the 3924 * max xri value determined in hba setup. 3925 */ 3926 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3927 if (dev != &phba->pcidev->dev) { 3928 shost->transportt = lpfc_vport_transport_template; 3929 vport->port_type = LPFC_NPIV_PORT; 3930 } else { 3931 shost->transportt = lpfc_transport_template; 3932 vport->port_type = LPFC_PHYSICAL_PORT; 3933 } 3934 3935 /* Initialize all internally managed lists. */ 3936 INIT_LIST_HEAD(&vport->fc_nodes); 3937 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3938 spin_lock_init(&vport->work_port_lock); 3939 3940 setup_timer(&vport->fc_disctmo, lpfc_disc_timeout, 3941 (unsigned long)vport); 3942 3943 setup_timer(&vport->els_tmofunc, lpfc_els_timeout, 3944 (unsigned long)vport); 3945 3946 setup_timer(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 3947 (unsigned long)vport); 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 4181 /** 4182 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 4183 * @phba: Pointer to hba for which this call is being executed. 4184 * 4185 * This routine starts the timer waiting for the FCF rediscovery to complete. 4186 **/ 4187 void 4188 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 4189 { 4190 unsigned long fcf_redisc_wait_tmo = 4191 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 4192 /* Start fcf rediscovery wait period timer */ 4193 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 4194 spin_lock_irq(&phba->hbalock); 4195 /* Allow action to new fcf asynchronous event */ 4196 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 4197 /* Mark the FCF rediscovery pending state */ 4198 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 4199 spin_unlock_irq(&phba->hbalock); 4200 } 4201 4202 /** 4203 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 4204 * @ptr: Map to lpfc_hba data structure pointer. 4205 * 4206 * This routine is invoked when waiting for FCF table rediscover has been 4207 * timed out. If new FCF record(s) has (have) been discovered during the 4208 * wait period, a new FCF event shall be added to the FCOE async event 4209 * list, and then worker thread shall be waked up for processing from the 4210 * worker thread context. 4211 **/ 4212 static void 4213 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 4214 { 4215 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 4216 4217 /* Don't send FCF rediscovery event if timer cancelled */ 4218 spin_lock_irq(&phba->hbalock); 4219 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 4220 spin_unlock_irq(&phba->hbalock); 4221 return; 4222 } 4223 /* Clear FCF rediscovery timer pending flag */ 4224 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 4225 /* FCF rediscovery event to worker thread */ 4226 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 4227 spin_unlock_irq(&phba->hbalock); 4228 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 4229 "2776 FCF rediscover quiescent timer expired\n"); 4230 /* wake up worker thread */ 4231 lpfc_worker_wake_up(phba); 4232 } 4233 4234 /** 4235 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 4236 * @phba: pointer to lpfc hba data structure. 4237 * @acqe_link: pointer to the async link completion queue entry. 4238 * 4239 * This routine is to parse the SLI4 link-attention link fault code and 4240 * translate it into the base driver's read link attention mailbox command 4241 * status. 4242 * 4243 * Return: Link-attention status in terms of base driver's coding. 4244 **/ 4245 static uint16_t 4246 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 4247 struct lpfc_acqe_link *acqe_link) 4248 { 4249 uint16_t latt_fault; 4250 4251 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 4252 case LPFC_ASYNC_LINK_FAULT_NONE: 4253 case LPFC_ASYNC_LINK_FAULT_LOCAL: 4254 case LPFC_ASYNC_LINK_FAULT_REMOTE: 4255 latt_fault = 0; 4256 break; 4257 default: 4258 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4259 "0398 Invalid link fault code: x%x\n", 4260 bf_get(lpfc_acqe_link_fault, acqe_link)); 4261 latt_fault = MBXERR_ERROR; 4262 break; 4263 } 4264 return latt_fault; 4265 } 4266 4267 /** 4268 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 4269 * @phba: pointer to lpfc hba data structure. 4270 * @acqe_link: pointer to the async link completion queue entry. 4271 * 4272 * This routine is to parse the SLI4 link attention type and translate it 4273 * into the base driver's link attention type coding. 4274 * 4275 * Return: Link attention type in terms of base driver's coding. 4276 **/ 4277 static uint8_t 4278 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 4279 struct lpfc_acqe_link *acqe_link) 4280 { 4281 uint8_t att_type; 4282 4283 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 4284 case LPFC_ASYNC_LINK_STATUS_DOWN: 4285 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 4286 att_type = LPFC_ATT_LINK_DOWN; 4287 break; 4288 case LPFC_ASYNC_LINK_STATUS_UP: 4289 /* Ignore physical link up events - wait for logical link up */ 4290 att_type = LPFC_ATT_RESERVED; 4291 break; 4292 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 4293 att_type = LPFC_ATT_LINK_UP; 4294 break; 4295 default: 4296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4297 "0399 Invalid link attention type: x%x\n", 4298 bf_get(lpfc_acqe_link_status, acqe_link)); 4299 att_type = LPFC_ATT_RESERVED; 4300 break; 4301 } 4302 return att_type; 4303 } 4304 4305 /** 4306 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 4307 * @phba: pointer to lpfc hba data structure. 4308 * 4309 * This routine is to get an SLI3 FC port's link speed in Mbps. 4310 * 4311 * Return: link speed in terms of Mbps. 4312 **/ 4313 uint32_t 4314 lpfc_sli_port_speed_get(struct lpfc_hba *phba) 4315 { 4316 uint32_t link_speed; 4317 4318 if (!lpfc_is_link_up(phba)) 4319 return 0; 4320 4321 if (phba->sli_rev <= LPFC_SLI_REV3) { 4322 switch (phba->fc_linkspeed) { 4323 case LPFC_LINK_SPEED_1GHZ: 4324 link_speed = 1000; 4325 break; 4326 case LPFC_LINK_SPEED_2GHZ: 4327 link_speed = 2000; 4328 break; 4329 case LPFC_LINK_SPEED_4GHZ: 4330 link_speed = 4000; 4331 break; 4332 case LPFC_LINK_SPEED_8GHZ: 4333 link_speed = 8000; 4334 break; 4335 case LPFC_LINK_SPEED_10GHZ: 4336 link_speed = 10000; 4337 break; 4338 case LPFC_LINK_SPEED_16GHZ: 4339 link_speed = 16000; 4340 break; 4341 default: 4342 link_speed = 0; 4343 } 4344 } else { 4345 if (phba->sli4_hba.link_state.logical_speed) 4346 link_speed = 4347 phba->sli4_hba.link_state.logical_speed; 4348 else 4349 link_speed = phba->sli4_hba.link_state.speed; 4350 } 4351 return link_speed; 4352 } 4353 4354 /** 4355 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 4356 * @phba: pointer to lpfc hba data structure. 4357 * @evt_code: asynchronous event code. 4358 * @speed_code: asynchronous event link speed code. 4359 * 4360 * This routine is to parse the giving SLI4 async event link speed code into 4361 * value of Mbps for the link speed. 4362 * 4363 * Return: link speed in terms of Mbps. 4364 **/ 4365 static uint32_t 4366 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 4367 uint8_t speed_code) 4368 { 4369 uint32_t port_speed; 4370 4371 switch (evt_code) { 4372 case LPFC_TRAILER_CODE_LINK: 4373 switch (speed_code) { 4374 case LPFC_ASYNC_LINK_SPEED_ZERO: 4375 port_speed = 0; 4376 break; 4377 case LPFC_ASYNC_LINK_SPEED_10MBPS: 4378 port_speed = 10; 4379 break; 4380 case LPFC_ASYNC_LINK_SPEED_100MBPS: 4381 port_speed = 100; 4382 break; 4383 case LPFC_ASYNC_LINK_SPEED_1GBPS: 4384 port_speed = 1000; 4385 break; 4386 case LPFC_ASYNC_LINK_SPEED_10GBPS: 4387 port_speed = 10000; 4388 break; 4389 case LPFC_ASYNC_LINK_SPEED_20GBPS: 4390 port_speed = 20000; 4391 break; 4392 case LPFC_ASYNC_LINK_SPEED_25GBPS: 4393 port_speed = 25000; 4394 break; 4395 case LPFC_ASYNC_LINK_SPEED_40GBPS: 4396 port_speed = 40000; 4397 break; 4398 default: 4399 port_speed = 0; 4400 } 4401 break; 4402 case LPFC_TRAILER_CODE_FC: 4403 switch (speed_code) { 4404 case LPFC_FC_LA_SPEED_UNKNOWN: 4405 port_speed = 0; 4406 break; 4407 case LPFC_FC_LA_SPEED_1G: 4408 port_speed = 1000; 4409 break; 4410 case LPFC_FC_LA_SPEED_2G: 4411 port_speed = 2000; 4412 break; 4413 case LPFC_FC_LA_SPEED_4G: 4414 port_speed = 4000; 4415 break; 4416 case LPFC_FC_LA_SPEED_8G: 4417 port_speed = 8000; 4418 break; 4419 case LPFC_FC_LA_SPEED_10G: 4420 port_speed = 10000; 4421 break; 4422 case LPFC_FC_LA_SPEED_16G: 4423 port_speed = 16000; 4424 break; 4425 case LPFC_FC_LA_SPEED_32G: 4426 port_speed = 32000; 4427 break; 4428 default: 4429 port_speed = 0; 4430 } 4431 break; 4432 default: 4433 port_speed = 0; 4434 } 4435 return port_speed; 4436 } 4437 4438 /** 4439 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 4440 * @phba: pointer to lpfc hba data structure. 4441 * @acqe_link: pointer to the async link completion queue entry. 4442 * 4443 * This routine is to handle the SLI4 asynchronous FCoE link event. 4444 **/ 4445 static void 4446 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 4447 struct lpfc_acqe_link *acqe_link) 4448 { 4449 struct lpfc_dmabuf *mp; 4450 LPFC_MBOXQ_t *pmb; 4451 MAILBOX_t *mb; 4452 struct lpfc_mbx_read_top *la; 4453 uint8_t att_type; 4454 int rc; 4455 4456 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 4457 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 4458 return; 4459 phba->fcoe_eventtag = acqe_link->event_tag; 4460 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4461 if (!pmb) { 4462 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4463 "0395 The mboxq allocation failed\n"); 4464 return; 4465 } 4466 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4467 if (!mp) { 4468 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4469 "0396 The lpfc_dmabuf allocation failed\n"); 4470 goto out_free_pmb; 4471 } 4472 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4473 if (!mp->virt) { 4474 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4475 "0397 The mbuf allocation failed\n"); 4476 goto out_free_dmabuf; 4477 } 4478 4479 /* Cleanup any outstanding ELS commands */ 4480 lpfc_els_flush_all_cmd(phba); 4481 4482 /* Block ELS IOCBs until we have done process link event */ 4483 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4484 4485 /* Update link event statistics */ 4486 phba->sli.slistat.link_event++; 4487 4488 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4489 lpfc_read_topology(phba, pmb, mp); 4490 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4491 pmb->vport = phba->pport; 4492 4493 /* Keep the link status for extra SLI4 state machine reference */ 4494 phba->sli4_hba.link_state.speed = 4495 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 4496 bf_get(lpfc_acqe_link_speed, acqe_link)); 4497 phba->sli4_hba.link_state.duplex = 4498 bf_get(lpfc_acqe_link_duplex, acqe_link); 4499 phba->sli4_hba.link_state.status = 4500 bf_get(lpfc_acqe_link_status, acqe_link); 4501 phba->sli4_hba.link_state.type = 4502 bf_get(lpfc_acqe_link_type, acqe_link); 4503 phba->sli4_hba.link_state.number = 4504 bf_get(lpfc_acqe_link_number, acqe_link); 4505 phba->sli4_hba.link_state.fault = 4506 bf_get(lpfc_acqe_link_fault, acqe_link); 4507 phba->sli4_hba.link_state.logical_speed = 4508 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 4509 4510 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4511 "2900 Async FC/FCoE Link event - Speed:%dGBit " 4512 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 4513 "Logical speed:%dMbps Fault:%d\n", 4514 phba->sli4_hba.link_state.speed, 4515 phba->sli4_hba.link_state.topology, 4516 phba->sli4_hba.link_state.status, 4517 phba->sli4_hba.link_state.type, 4518 phba->sli4_hba.link_state.number, 4519 phba->sli4_hba.link_state.logical_speed, 4520 phba->sli4_hba.link_state.fault); 4521 /* 4522 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 4523 * topology info. Note: Optional for non FC-AL ports. 4524 */ 4525 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 4526 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4527 if (rc == MBX_NOT_FINISHED) 4528 goto out_free_dmabuf; 4529 return; 4530 } 4531 /* 4532 * For FCoE Mode: fill in all the topology information we need and call 4533 * the READ_TOPOLOGY completion routine to continue without actually 4534 * sending the READ_TOPOLOGY mailbox command to the port. 4535 */ 4536 /* Parse and translate status field */ 4537 mb = &pmb->u.mb; 4538 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 4539 4540 /* Parse and translate link attention fields */ 4541 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 4542 la->eventTag = acqe_link->event_tag; 4543 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 4544 bf_set(lpfc_mbx_read_top_link_spd, la, 4545 (bf_get(lpfc_acqe_link_speed, acqe_link))); 4546 4547 /* Fake the the following irrelvant fields */ 4548 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 4549 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 4550 bf_set(lpfc_mbx_read_top_il, la, 0); 4551 bf_set(lpfc_mbx_read_top_pb, la, 0); 4552 bf_set(lpfc_mbx_read_top_fa, la, 0); 4553 bf_set(lpfc_mbx_read_top_mm, la, 0); 4554 4555 /* Invoke the lpfc_handle_latt mailbox command callback function */ 4556 lpfc_mbx_cmpl_read_topology(phba, pmb); 4557 4558 return; 4559 4560 out_free_dmabuf: 4561 kfree(mp); 4562 out_free_pmb: 4563 mempool_free(pmb, phba->mbox_mem_pool); 4564 } 4565 4566 /** 4567 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 4568 * @phba: pointer to lpfc hba data structure. 4569 * @acqe_fc: pointer to the async fc completion queue entry. 4570 * 4571 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 4572 * that the event was received and then issue a read_topology mailbox command so 4573 * that the rest of the driver will treat it the same as SLI3. 4574 **/ 4575 static void 4576 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 4577 { 4578 struct lpfc_dmabuf *mp; 4579 LPFC_MBOXQ_t *pmb; 4580 MAILBOX_t *mb; 4581 struct lpfc_mbx_read_top *la; 4582 int rc; 4583 4584 if (bf_get(lpfc_trailer_type, acqe_fc) != 4585 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 4586 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4587 "2895 Non FC link Event detected.(%d)\n", 4588 bf_get(lpfc_trailer_type, acqe_fc)); 4589 return; 4590 } 4591 /* Keep the link status for extra SLI4 state machine reference */ 4592 phba->sli4_hba.link_state.speed = 4593 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 4594 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 4595 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 4596 phba->sli4_hba.link_state.topology = 4597 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 4598 phba->sli4_hba.link_state.status = 4599 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 4600 phba->sli4_hba.link_state.type = 4601 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 4602 phba->sli4_hba.link_state.number = 4603 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 4604 phba->sli4_hba.link_state.fault = 4605 bf_get(lpfc_acqe_link_fault, acqe_fc); 4606 phba->sli4_hba.link_state.logical_speed = 4607 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 4608 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4609 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 4610 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 4611 "%dMbps Fault:%d\n", 4612 phba->sli4_hba.link_state.speed, 4613 phba->sli4_hba.link_state.topology, 4614 phba->sli4_hba.link_state.status, 4615 phba->sli4_hba.link_state.type, 4616 phba->sli4_hba.link_state.number, 4617 phba->sli4_hba.link_state.logical_speed, 4618 phba->sli4_hba.link_state.fault); 4619 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4620 if (!pmb) { 4621 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4622 "2897 The mboxq allocation failed\n"); 4623 return; 4624 } 4625 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4626 if (!mp) { 4627 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4628 "2898 The lpfc_dmabuf allocation failed\n"); 4629 goto out_free_pmb; 4630 } 4631 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4632 if (!mp->virt) { 4633 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4634 "2899 The mbuf allocation failed\n"); 4635 goto out_free_dmabuf; 4636 } 4637 4638 /* Cleanup any outstanding ELS commands */ 4639 lpfc_els_flush_all_cmd(phba); 4640 4641 /* Block ELS IOCBs until we have done process link event */ 4642 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4643 4644 /* Update link event statistics */ 4645 phba->sli.slistat.link_event++; 4646 4647 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4648 lpfc_read_topology(phba, pmb, mp); 4649 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4650 pmb->vport = phba->pport; 4651 4652 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) { 4653 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK); 4654 4655 switch (phba->sli4_hba.link_state.status) { 4656 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN: 4657 phba->link_flag |= LS_MDS_LINK_DOWN; 4658 break; 4659 case LPFC_FC_LA_TYPE_MDS_LOOPBACK: 4660 phba->link_flag |= LS_MDS_LOOPBACK; 4661 break; 4662 default: 4663 break; 4664 } 4665 4666 /* Parse and translate status field */ 4667 mb = &pmb->u.mb; 4668 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, 4669 (void *)acqe_fc); 4670 4671 /* Parse and translate link attention fields */ 4672 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop; 4673 la->eventTag = acqe_fc->event_tag; 4674 4675 if (phba->sli4_hba.link_state.status == 4676 LPFC_FC_LA_TYPE_UNEXP_WWPN) { 4677 bf_set(lpfc_mbx_read_top_att_type, la, 4678 LPFC_FC_LA_TYPE_UNEXP_WWPN); 4679 } else { 4680 bf_set(lpfc_mbx_read_top_att_type, la, 4681 LPFC_FC_LA_TYPE_LINK_DOWN); 4682 } 4683 /* Invoke the mailbox command callback function */ 4684 lpfc_mbx_cmpl_read_topology(phba, pmb); 4685 4686 return; 4687 } 4688 4689 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4690 if (rc == MBX_NOT_FINISHED) 4691 goto out_free_dmabuf; 4692 return; 4693 4694 out_free_dmabuf: 4695 kfree(mp); 4696 out_free_pmb: 4697 mempool_free(pmb, phba->mbox_mem_pool); 4698 } 4699 4700 /** 4701 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 4702 * @phba: pointer to lpfc hba data structure. 4703 * @acqe_fc: pointer to the async SLI completion queue entry. 4704 * 4705 * This routine is to handle the SLI4 asynchronous SLI events. 4706 **/ 4707 static void 4708 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 4709 { 4710 char port_name; 4711 char message[128]; 4712 uint8_t status; 4713 uint8_t evt_type; 4714 uint8_t operational = 0; 4715 struct temp_event temp_event_data; 4716 struct lpfc_acqe_misconfigured_event *misconfigured; 4717 struct Scsi_Host *shost; 4718 4719 evt_type = bf_get(lpfc_trailer_type, acqe_sli); 4720 4721 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4722 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 4723 "x%08x SLI Event Type:%d\n", 4724 acqe_sli->event_data1, acqe_sli->event_data2, 4725 evt_type); 4726 4727 port_name = phba->Port[0]; 4728 if (port_name == 0x00) 4729 port_name = '?'; /* get port name is empty */ 4730 4731 switch (evt_type) { 4732 case LPFC_SLI_EVENT_TYPE_OVER_TEMP: 4733 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4734 temp_event_data.event_code = LPFC_THRESHOLD_TEMP; 4735 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4736 4737 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 4738 "3190 Over Temperature:%d Celsius- Port Name %c\n", 4739 acqe_sli->event_data1, port_name); 4740 4741 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 4742 shost = lpfc_shost_from_vport(phba->pport); 4743 fc_host_post_vendor_event(shost, fc_get_event_number(), 4744 sizeof(temp_event_data), 4745 (char *)&temp_event_data, 4746 SCSI_NL_VID_TYPE_PCI 4747 | PCI_VENDOR_ID_EMULEX); 4748 break; 4749 case LPFC_SLI_EVENT_TYPE_NORM_TEMP: 4750 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4751 temp_event_data.event_code = LPFC_NORMAL_TEMP; 4752 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4753 4754 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4755 "3191 Normal Temperature:%d Celsius - Port Name %c\n", 4756 acqe_sli->event_data1, port_name); 4757 4758 shost = lpfc_shost_from_vport(phba->pport); 4759 fc_host_post_vendor_event(shost, fc_get_event_number(), 4760 sizeof(temp_event_data), 4761 (char *)&temp_event_data, 4762 SCSI_NL_VID_TYPE_PCI 4763 | PCI_VENDOR_ID_EMULEX); 4764 break; 4765 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED: 4766 misconfigured = (struct lpfc_acqe_misconfigured_event *) 4767 &acqe_sli->event_data1; 4768 4769 /* fetch the status for this port */ 4770 switch (phba->sli4_hba.lnk_info.lnk_no) { 4771 case LPFC_LINK_NUMBER_0: 4772 status = bf_get(lpfc_sli_misconfigured_port0_state, 4773 &misconfigured->theEvent); 4774 operational = bf_get(lpfc_sli_misconfigured_port0_op, 4775 &misconfigured->theEvent); 4776 break; 4777 case LPFC_LINK_NUMBER_1: 4778 status = bf_get(lpfc_sli_misconfigured_port1_state, 4779 &misconfigured->theEvent); 4780 operational = bf_get(lpfc_sli_misconfigured_port1_op, 4781 &misconfigured->theEvent); 4782 break; 4783 case LPFC_LINK_NUMBER_2: 4784 status = bf_get(lpfc_sli_misconfigured_port2_state, 4785 &misconfigured->theEvent); 4786 operational = bf_get(lpfc_sli_misconfigured_port2_op, 4787 &misconfigured->theEvent); 4788 break; 4789 case LPFC_LINK_NUMBER_3: 4790 status = bf_get(lpfc_sli_misconfigured_port3_state, 4791 &misconfigured->theEvent); 4792 operational = bf_get(lpfc_sli_misconfigured_port3_op, 4793 &misconfigured->theEvent); 4794 break; 4795 default: 4796 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4797 "3296 " 4798 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED " 4799 "event: Invalid link %d", 4800 phba->sli4_hba.lnk_info.lnk_no); 4801 return; 4802 } 4803 4804 /* Skip if optic state unchanged */ 4805 if (phba->sli4_hba.lnk_info.optic_state == status) 4806 return; 4807 4808 switch (status) { 4809 case LPFC_SLI_EVENT_STATUS_VALID: 4810 sprintf(message, "Physical Link is functional"); 4811 break; 4812 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 4813 sprintf(message, "Optics faulted/incorrectly " 4814 "installed/not installed - Reseat optics, " 4815 "if issue not resolved, replace."); 4816 break; 4817 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 4818 sprintf(message, 4819 "Optics of two types installed - Remove one " 4820 "optic or install matching pair of optics."); 4821 break; 4822 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 4823 sprintf(message, "Incompatible optics - Replace with " 4824 "compatible optics for card to function."); 4825 break; 4826 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED: 4827 sprintf(message, "Unqualified optics - Replace with " 4828 "Avago optics for Warranty and Technical " 4829 "Support - Link is%s operational", 4830 (operational) ? " not" : ""); 4831 break; 4832 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED: 4833 sprintf(message, "Uncertified optics - Replace with " 4834 "Avago-certified optics to enable link " 4835 "operation - Link is%s operational", 4836 (operational) ? " not" : ""); 4837 break; 4838 default: 4839 /* firmware is reporting a status we don't know about */ 4840 sprintf(message, "Unknown event status x%02x", status); 4841 break; 4842 } 4843 phba->sli4_hba.lnk_info.optic_state = status; 4844 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4845 "3176 Port Name %c %s\n", port_name, message); 4846 break; 4847 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT: 4848 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4849 "3192 Remote DPort Test Initiated - " 4850 "Event Data1:x%08x Event Data2: x%08x\n", 4851 acqe_sli->event_data1, acqe_sli->event_data2); 4852 break; 4853 default: 4854 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4855 "3193 Async SLI event - Event Data1:x%08x Event Data2:" 4856 "x%08x SLI Event Type:%d\n", 4857 acqe_sli->event_data1, acqe_sli->event_data2, 4858 evt_type); 4859 break; 4860 } 4861 } 4862 4863 /** 4864 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 4865 * @vport: pointer to vport data structure. 4866 * 4867 * This routine is to perform Clear Virtual Link (CVL) on a vport in 4868 * response to a CVL event. 4869 * 4870 * Return the pointer to the ndlp with the vport if successful, otherwise 4871 * return NULL. 4872 **/ 4873 static struct lpfc_nodelist * 4874 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 4875 { 4876 struct lpfc_nodelist *ndlp; 4877 struct Scsi_Host *shost; 4878 struct lpfc_hba *phba; 4879 4880 if (!vport) 4881 return NULL; 4882 phba = vport->phba; 4883 if (!phba) 4884 return NULL; 4885 ndlp = lpfc_findnode_did(vport, Fabric_DID); 4886 if (!ndlp) { 4887 /* Cannot find existing Fabric ndlp, so allocate a new one */ 4888 ndlp = lpfc_nlp_init(vport, Fabric_DID); 4889 if (!ndlp) 4890 return 0; 4891 /* Set the node type */ 4892 ndlp->nlp_type |= NLP_FABRIC; 4893 /* Put ndlp onto node list */ 4894 lpfc_enqueue_node(vport, ndlp); 4895 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4896 /* re-setup ndlp without removing from node list */ 4897 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 4898 if (!ndlp) 4899 return 0; 4900 } 4901 if ((phba->pport->port_state < LPFC_FLOGI) && 4902 (phba->pport->port_state != LPFC_VPORT_FAILED)) 4903 return NULL; 4904 /* If virtual link is not yet instantiated ignore CVL */ 4905 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 4906 && (vport->port_state != LPFC_VPORT_FAILED)) 4907 return NULL; 4908 shost = lpfc_shost_from_vport(vport); 4909 if (!shost) 4910 return NULL; 4911 lpfc_linkdown_port(vport); 4912 lpfc_cleanup_pending_mbox(vport); 4913 spin_lock_irq(shost->host_lock); 4914 vport->fc_flag |= FC_VPORT_CVL_RCVD; 4915 spin_unlock_irq(shost->host_lock); 4916 4917 return ndlp; 4918 } 4919 4920 /** 4921 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 4922 * @vport: pointer to lpfc hba data structure. 4923 * 4924 * This routine is to perform Clear Virtual Link (CVL) on all vports in 4925 * response to a FCF dead event. 4926 **/ 4927 static void 4928 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 4929 { 4930 struct lpfc_vport **vports; 4931 int i; 4932 4933 vports = lpfc_create_vport_work_array(phba); 4934 if (vports) 4935 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 4936 lpfc_sli4_perform_vport_cvl(vports[i]); 4937 lpfc_destroy_vport_work_array(phba, vports); 4938 } 4939 4940 /** 4941 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 4942 * @phba: pointer to lpfc hba data structure. 4943 * @acqe_link: pointer to the async fcoe completion queue entry. 4944 * 4945 * This routine is to handle the SLI4 asynchronous fcoe event. 4946 **/ 4947 static void 4948 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 4949 struct lpfc_acqe_fip *acqe_fip) 4950 { 4951 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 4952 int rc; 4953 struct lpfc_vport *vport; 4954 struct lpfc_nodelist *ndlp; 4955 struct Scsi_Host *shost; 4956 int active_vlink_present; 4957 struct lpfc_vport **vports; 4958 int i; 4959 4960 phba->fc_eventTag = acqe_fip->event_tag; 4961 phba->fcoe_eventtag = acqe_fip->event_tag; 4962 switch (event_type) { 4963 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 4964 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 4965 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 4966 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4967 LOG_DISCOVERY, 4968 "2546 New FCF event, evt_tag:x%x, " 4969 "index:x%x\n", 4970 acqe_fip->event_tag, 4971 acqe_fip->index); 4972 else 4973 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 4974 LOG_DISCOVERY, 4975 "2788 FCF param modified event, " 4976 "evt_tag:x%x, index:x%x\n", 4977 acqe_fip->event_tag, 4978 acqe_fip->index); 4979 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4980 /* 4981 * During period of FCF discovery, read the FCF 4982 * table record indexed by the event to update 4983 * FCF roundrobin failover eligible FCF bmask. 4984 */ 4985 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4986 LOG_DISCOVERY, 4987 "2779 Read FCF (x%x) for updating " 4988 "roundrobin FCF failover bmask\n", 4989 acqe_fip->index); 4990 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 4991 } 4992 4993 /* If the FCF discovery is in progress, do nothing. */ 4994 spin_lock_irq(&phba->hbalock); 4995 if (phba->hba_flag & FCF_TS_INPROG) { 4996 spin_unlock_irq(&phba->hbalock); 4997 break; 4998 } 4999 /* If fast FCF failover rescan event is pending, do nothing */ 5000 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 5001 spin_unlock_irq(&phba->hbalock); 5002 break; 5003 } 5004 5005 /* If the FCF has been in discovered state, do nothing. */ 5006 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 5007 spin_unlock_irq(&phba->hbalock); 5008 break; 5009 } 5010 spin_unlock_irq(&phba->hbalock); 5011 5012 /* Otherwise, scan the entire FCF table and re-discover SAN */ 5013 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5014 "2770 Start FCF table scan per async FCF " 5015 "event, evt_tag:x%x, index:x%x\n", 5016 acqe_fip->event_tag, acqe_fip->index); 5017 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 5018 LPFC_FCOE_FCF_GET_FIRST); 5019 if (rc) 5020 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5021 "2547 Issue FCF scan read FCF mailbox " 5022 "command failed (x%x)\n", rc); 5023 break; 5024 5025 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 5026 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5027 "2548 FCF Table full count 0x%x tag 0x%x\n", 5028 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 5029 acqe_fip->event_tag); 5030 break; 5031 5032 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 5033 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 5034 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5035 "2549 FCF (x%x) disconnected from network, " 5036 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 5037 /* 5038 * If we are in the middle of FCF failover process, clear 5039 * the corresponding FCF bit in the roundrobin bitmap. 5040 */ 5041 spin_lock_irq(&phba->hbalock); 5042 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && 5043 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) { 5044 spin_unlock_irq(&phba->hbalock); 5045 /* Update FLOGI FCF failover eligible FCF bmask */ 5046 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 5047 break; 5048 } 5049 spin_unlock_irq(&phba->hbalock); 5050 5051 /* If the event is not for currently used fcf do nothing */ 5052 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 5053 break; 5054 5055 /* 5056 * Otherwise, request the port to rediscover the entire FCF 5057 * table for a fast recovery from case that the current FCF 5058 * is no longer valid as we are not in the middle of FCF 5059 * failover process already. 5060 */ 5061 spin_lock_irq(&phba->hbalock); 5062 /* Mark the fast failover process in progress */ 5063 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 5064 spin_unlock_irq(&phba->hbalock); 5065 5066 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5067 "2771 Start FCF fast failover process due to " 5068 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 5069 "\n", acqe_fip->event_tag, acqe_fip->index); 5070 rc = lpfc_sli4_redisc_fcf_table(phba); 5071 if (rc) { 5072 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5073 LOG_DISCOVERY, 5074 "2772 Issue FCF rediscover mabilbox " 5075 "command failed, fail through to FCF " 5076 "dead event\n"); 5077 spin_lock_irq(&phba->hbalock); 5078 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 5079 spin_unlock_irq(&phba->hbalock); 5080 /* 5081 * Last resort will fail over by treating this 5082 * as a link down to FCF registration. 5083 */ 5084 lpfc_sli4_fcf_dead_failthrough(phba); 5085 } else { 5086 /* Reset FCF roundrobin bmask for new discovery */ 5087 lpfc_sli4_clear_fcf_rr_bmask(phba); 5088 /* 5089 * Handling fast FCF failover to a DEAD FCF event is 5090 * considered equalivant to receiving CVL to all vports. 5091 */ 5092 lpfc_sli4_perform_all_vport_cvl(phba); 5093 } 5094 break; 5095 case LPFC_FIP_EVENT_TYPE_CVL: 5096 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 5097 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5098 "2718 Clear Virtual Link Received for VPI 0x%x" 5099 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 5100 5101 vport = lpfc_find_vport_by_vpid(phba, 5102 acqe_fip->index); 5103 ndlp = lpfc_sli4_perform_vport_cvl(vport); 5104 if (!ndlp) 5105 break; 5106 active_vlink_present = 0; 5107 5108 vports = lpfc_create_vport_work_array(phba); 5109 if (vports) { 5110 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 5111 i++) { 5112 if ((!(vports[i]->fc_flag & 5113 FC_VPORT_CVL_RCVD)) && 5114 (vports[i]->port_state > LPFC_FDISC)) { 5115 active_vlink_present = 1; 5116 break; 5117 } 5118 } 5119 lpfc_destroy_vport_work_array(phba, vports); 5120 } 5121 5122 /* 5123 * Don't re-instantiate if vport is marked for deletion. 5124 * If we are here first then vport_delete is going to wait 5125 * for discovery to complete. 5126 */ 5127 if (!(vport->load_flag & FC_UNLOADING) && 5128 active_vlink_present) { 5129 /* 5130 * If there are other active VLinks present, 5131 * re-instantiate the Vlink using FDISC. 5132 */ 5133 mod_timer(&ndlp->nlp_delayfunc, 5134 jiffies + msecs_to_jiffies(1000)); 5135 shost = lpfc_shost_from_vport(vport); 5136 spin_lock_irq(shost->host_lock); 5137 ndlp->nlp_flag |= NLP_DELAY_TMO; 5138 spin_unlock_irq(shost->host_lock); 5139 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 5140 vport->port_state = LPFC_FDISC; 5141 } else { 5142 /* 5143 * Otherwise, we request port to rediscover 5144 * the entire FCF table for a fast recovery 5145 * from possible case that the current FCF 5146 * is no longer valid if we are not already 5147 * in the FCF failover process. 5148 */ 5149 spin_lock_irq(&phba->hbalock); 5150 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 5151 spin_unlock_irq(&phba->hbalock); 5152 break; 5153 } 5154 /* Mark the fast failover process in progress */ 5155 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 5156 spin_unlock_irq(&phba->hbalock); 5157 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 5158 LOG_DISCOVERY, 5159 "2773 Start FCF failover per CVL, " 5160 "evt_tag:x%x\n", acqe_fip->event_tag); 5161 rc = lpfc_sli4_redisc_fcf_table(phba); 5162 if (rc) { 5163 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5164 LOG_DISCOVERY, 5165 "2774 Issue FCF rediscover " 5166 "mabilbox command failed, " 5167 "through to CVL event\n"); 5168 spin_lock_irq(&phba->hbalock); 5169 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 5170 spin_unlock_irq(&phba->hbalock); 5171 /* 5172 * Last resort will be re-try on the 5173 * the current registered FCF entry. 5174 */ 5175 lpfc_retry_pport_discovery(phba); 5176 } else 5177 /* 5178 * Reset FCF roundrobin bmask for new 5179 * discovery. 5180 */ 5181 lpfc_sli4_clear_fcf_rr_bmask(phba); 5182 } 5183 break; 5184 default: 5185 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5186 "0288 Unknown FCoE event type 0x%x event tag " 5187 "0x%x\n", event_type, acqe_fip->event_tag); 5188 break; 5189 } 5190 } 5191 5192 /** 5193 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 5194 * @phba: pointer to lpfc hba data structure. 5195 * @acqe_link: pointer to the async dcbx completion queue entry. 5196 * 5197 * This routine is to handle the SLI4 asynchronous dcbx event. 5198 **/ 5199 static void 5200 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 5201 struct lpfc_acqe_dcbx *acqe_dcbx) 5202 { 5203 phba->fc_eventTag = acqe_dcbx->event_tag; 5204 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5205 "0290 The SLI4 DCBX asynchronous event is not " 5206 "handled yet\n"); 5207 } 5208 5209 /** 5210 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 5211 * @phba: pointer to lpfc hba data structure. 5212 * @acqe_link: pointer to the async grp5 completion queue entry. 5213 * 5214 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 5215 * is an asynchronous notified of a logical link speed change. The Port 5216 * reports the logical link speed in units of 10Mbps. 5217 **/ 5218 static void 5219 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 5220 struct lpfc_acqe_grp5 *acqe_grp5) 5221 { 5222 uint16_t prev_ll_spd; 5223 5224 phba->fc_eventTag = acqe_grp5->event_tag; 5225 phba->fcoe_eventtag = acqe_grp5->event_tag; 5226 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 5227 phba->sli4_hba.link_state.logical_speed = 5228 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 5229 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5230 "2789 GRP5 Async Event: Updating logical link speed " 5231 "from %dMbps to %dMbps\n", prev_ll_spd, 5232 phba->sli4_hba.link_state.logical_speed); 5233 } 5234 5235 /** 5236 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 5237 * @phba: pointer to lpfc hba data structure. 5238 * 5239 * This routine is invoked by the worker thread to process all the pending 5240 * SLI4 asynchronous events. 5241 **/ 5242 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 5243 { 5244 struct lpfc_cq_event *cq_event; 5245 5246 /* First, declare the async event has been handled */ 5247 spin_lock_irq(&phba->hbalock); 5248 phba->hba_flag &= ~ASYNC_EVENT; 5249 spin_unlock_irq(&phba->hbalock); 5250 /* Now, handle all the async events */ 5251 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 5252 /* Get the first event from the head of the event queue */ 5253 spin_lock_irq(&phba->hbalock); 5254 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 5255 cq_event, struct lpfc_cq_event, list); 5256 spin_unlock_irq(&phba->hbalock); 5257 /* Process the asynchronous event */ 5258 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 5259 case LPFC_TRAILER_CODE_LINK: 5260 lpfc_sli4_async_link_evt(phba, 5261 &cq_event->cqe.acqe_link); 5262 break; 5263 case LPFC_TRAILER_CODE_FCOE: 5264 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 5265 break; 5266 case LPFC_TRAILER_CODE_DCBX: 5267 lpfc_sli4_async_dcbx_evt(phba, 5268 &cq_event->cqe.acqe_dcbx); 5269 break; 5270 case LPFC_TRAILER_CODE_GRP5: 5271 lpfc_sli4_async_grp5_evt(phba, 5272 &cq_event->cqe.acqe_grp5); 5273 break; 5274 case LPFC_TRAILER_CODE_FC: 5275 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 5276 break; 5277 case LPFC_TRAILER_CODE_SLI: 5278 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 5279 break; 5280 default: 5281 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5282 "1804 Invalid asynchrous event code: " 5283 "x%x\n", bf_get(lpfc_trailer_code, 5284 &cq_event->cqe.mcqe_cmpl)); 5285 break; 5286 } 5287 /* Free the completion event processed to the free pool */ 5288 lpfc_sli4_cq_event_release(phba, cq_event); 5289 } 5290 } 5291 5292 /** 5293 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 5294 * @phba: pointer to lpfc hba data structure. 5295 * 5296 * This routine is invoked by the worker thread to process FCF table 5297 * rediscovery pending completion event. 5298 **/ 5299 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 5300 { 5301 int rc; 5302 5303 spin_lock_irq(&phba->hbalock); 5304 /* Clear FCF rediscovery timeout event */ 5305 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 5306 /* Clear driver fast failover FCF record flag */ 5307 phba->fcf.failover_rec.flag = 0; 5308 /* Set state for FCF fast failover */ 5309 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 5310 spin_unlock_irq(&phba->hbalock); 5311 5312 /* Scan FCF table from the first entry to re-discover SAN */ 5313 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5314 "2777 Start post-quiescent FCF table scan\n"); 5315 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 5316 if (rc) 5317 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5318 "2747 Issue FCF scan read FCF mailbox " 5319 "command failed 0x%x\n", rc); 5320 } 5321 5322 /** 5323 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 5324 * @phba: pointer to lpfc hba data structure. 5325 * @dev_grp: The HBA PCI-Device group number. 5326 * 5327 * This routine is invoked to set up the per HBA PCI-Device group function 5328 * API jump table entries. 5329 * 5330 * Return: 0 if success, otherwise -ENODEV 5331 **/ 5332 int 5333 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5334 { 5335 int rc; 5336 5337 /* Set up lpfc PCI-device group */ 5338 phba->pci_dev_grp = dev_grp; 5339 5340 /* The LPFC_PCI_DEV_OC uses SLI4 */ 5341 if (dev_grp == LPFC_PCI_DEV_OC) 5342 phba->sli_rev = LPFC_SLI_REV4; 5343 5344 /* Set up device INIT API function jump table */ 5345 rc = lpfc_init_api_table_setup(phba, dev_grp); 5346 if (rc) 5347 return -ENODEV; 5348 /* Set up SCSI API function jump table */ 5349 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 5350 if (rc) 5351 return -ENODEV; 5352 /* Set up SLI API function jump table */ 5353 rc = lpfc_sli_api_table_setup(phba, dev_grp); 5354 if (rc) 5355 return -ENODEV; 5356 /* Set up MBOX API function jump table */ 5357 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 5358 if (rc) 5359 return -ENODEV; 5360 5361 return 0; 5362 } 5363 5364 /** 5365 * lpfc_log_intr_mode - Log the active interrupt mode 5366 * @phba: pointer to lpfc hba data structure. 5367 * @intr_mode: active interrupt mode adopted. 5368 * 5369 * This routine it invoked to log the currently used active interrupt mode 5370 * to the device. 5371 **/ 5372 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 5373 { 5374 switch (intr_mode) { 5375 case 0: 5376 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5377 "0470 Enable INTx interrupt mode.\n"); 5378 break; 5379 case 1: 5380 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5381 "0481 Enabled MSI interrupt mode.\n"); 5382 break; 5383 case 2: 5384 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5385 "0480 Enabled MSI-X interrupt mode.\n"); 5386 break; 5387 default: 5388 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5389 "0482 Illegal interrupt mode.\n"); 5390 break; 5391 } 5392 return; 5393 } 5394 5395 /** 5396 * lpfc_enable_pci_dev - Enable a generic PCI device. 5397 * @phba: pointer to lpfc hba data structure. 5398 * 5399 * This routine is invoked to enable the PCI device that is common to all 5400 * PCI devices. 5401 * 5402 * Return codes 5403 * 0 - successful 5404 * other values - error 5405 **/ 5406 static int 5407 lpfc_enable_pci_dev(struct lpfc_hba *phba) 5408 { 5409 struct pci_dev *pdev; 5410 5411 /* Obtain PCI device reference */ 5412 if (!phba->pcidev) 5413 goto out_error; 5414 else 5415 pdev = phba->pcidev; 5416 /* Enable PCI device */ 5417 if (pci_enable_device_mem(pdev)) 5418 goto out_error; 5419 /* Request PCI resource for the device */ 5420 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME)) 5421 goto out_disable_device; 5422 /* Set up device as PCI master and save state for EEH */ 5423 pci_set_master(pdev); 5424 pci_try_set_mwi(pdev); 5425 pci_save_state(pdev); 5426 5427 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 5428 if (pci_is_pcie(pdev)) 5429 pdev->needs_freset = 1; 5430 5431 return 0; 5432 5433 out_disable_device: 5434 pci_disable_device(pdev); 5435 out_error: 5436 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5437 "1401 Failed to enable pci device\n"); 5438 return -ENODEV; 5439 } 5440 5441 /** 5442 * lpfc_disable_pci_dev - Disable a generic PCI device. 5443 * @phba: pointer to lpfc hba data structure. 5444 * 5445 * This routine is invoked to disable the PCI device that is common to all 5446 * PCI devices. 5447 **/ 5448 static void 5449 lpfc_disable_pci_dev(struct lpfc_hba *phba) 5450 { 5451 struct pci_dev *pdev; 5452 5453 /* Obtain PCI device reference */ 5454 if (!phba->pcidev) 5455 return; 5456 else 5457 pdev = phba->pcidev; 5458 /* Release PCI resource and disable PCI device */ 5459 pci_release_mem_regions(pdev); 5460 pci_disable_device(pdev); 5461 5462 return; 5463 } 5464 5465 /** 5466 * lpfc_reset_hba - Reset a hba 5467 * @phba: pointer to lpfc hba data structure. 5468 * 5469 * This routine is invoked to reset a hba device. It brings the HBA 5470 * offline, performs a board restart, and then brings the board back 5471 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 5472 * on outstanding mailbox commands. 5473 **/ 5474 void 5475 lpfc_reset_hba(struct lpfc_hba *phba) 5476 { 5477 /* If resets are disabled then set error state and return. */ 5478 if (!phba->cfg_enable_hba_reset) { 5479 phba->link_state = LPFC_HBA_ERROR; 5480 return; 5481 } 5482 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) 5483 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 5484 else 5485 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 5486 lpfc_offline(phba); 5487 lpfc_sli_brdrestart(phba); 5488 lpfc_online(phba); 5489 lpfc_unblock_mgmt_io(phba); 5490 } 5491 5492 /** 5493 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 5494 * @phba: pointer to lpfc hba data structure. 5495 * 5496 * This function enables the PCI SR-IOV virtual functions to a physical 5497 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5498 * enable the number of virtual functions to the physical function. As 5499 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5500 * API call does not considered as an error condition for most of the device. 5501 **/ 5502 uint16_t 5503 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 5504 { 5505 struct pci_dev *pdev = phba->pcidev; 5506 uint16_t nr_virtfn; 5507 int pos; 5508 5509 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 5510 if (pos == 0) 5511 return 0; 5512 5513 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 5514 return nr_virtfn; 5515 } 5516 5517 /** 5518 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 5519 * @phba: pointer to lpfc hba data structure. 5520 * @nr_vfn: number of virtual functions to be enabled. 5521 * 5522 * This function enables the PCI SR-IOV virtual functions to a physical 5523 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5524 * enable the number of virtual functions to the physical function. As 5525 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5526 * API call does not considered as an error condition for most of the device. 5527 **/ 5528 int 5529 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 5530 { 5531 struct pci_dev *pdev = phba->pcidev; 5532 uint16_t max_nr_vfn; 5533 int rc; 5534 5535 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 5536 if (nr_vfn > max_nr_vfn) { 5537 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5538 "3057 Requested vfs (%d) greater than " 5539 "supported vfs (%d)", nr_vfn, max_nr_vfn); 5540 return -EINVAL; 5541 } 5542 5543 rc = pci_enable_sriov(pdev, nr_vfn); 5544 if (rc) { 5545 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5546 "2806 Failed to enable sriov on this device " 5547 "with vfn number nr_vf:%d, rc:%d\n", 5548 nr_vfn, rc); 5549 } else 5550 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5551 "2807 Successful enable sriov on this device " 5552 "with vfn number nr_vf:%d\n", nr_vfn); 5553 return rc; 5554 } 5555 5556 /** 5557 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5558 * @phba: pointer to lpfc hba data structure. 5559 * 5560 * This routine is invoked to set up the driver internal resources before the 5561 * device specific resource setup to support the HBA device it attached to. 5562 * 5563 * Return codes 5564 * 0 - successful 5565 * other values - error 5566 **/ 5567 static int 5568 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5569 { 5570 struct lpfc_sli *psli = &phba->sli; 5571 5572 /* 5573 * Driver resources common to all SLI revisions 5574 */ 5575 atomic_set(&phba->fast_event_count, 0); 5576 spin_lock_init(&phba->hbalock); 5577 5578 /* Initialize ndlp management spinlock */ 5579 spin_lock_init(&phba->ndlp_lock); 5580 5581 INIT_LIST_HEAD(&phba->port_list); 5582 INIT_LIST_HEAD(&phba->work_list); 5583 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5584 5585 /* Initialize the wait queue head for the kernel thread */ 5586 init_waitqueue_head(&phba->work_waitq); 5587 5588 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5589 "1403 Protocols supported %s %s %s\n", 5590 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ? 5591 "SCSI" : " "), 5592 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ? 5593 "NVME" : " "), 5594 (phba->nvmet_support ? "NVMET" : " ")); 5595 5596 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5597 /* Initialize the scsi buffer list used by driver for scsi IO */ 5598 spin_lock_init(&phba->scsi_buf_list_get_lock); 5599 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); 5600 spin_lock_init(&phba->scsi_buf_list_put_lock); 5601 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 5602 } 5603 5604 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) && 5605 (phba->nvmet_support == 0)) { 5606 /* Initialize the NVME buffer list used by driver for NVME IO */ 5607 spin_lock_init(&phba->nvme_buf_list_get_lock); 5608 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get); 5609 spin_lock_init(&phba->nvme_buf_list_put_lock); 5610 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 5611 } 5612 5613 /* Initialize the fabric iocb list */ 5614 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5615 5616 /* Initialize list to save ELS buffers */ 5617 INIT_LIST_HEAD(&phba->elsbuf); 5618 5619 /* Initialize FCF connection rec list */ 5620 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5621 5622 /* Initialize OAS configuration list */ 5623 spin_lock_init(&phba->devicelock); 5624 INIT_LIST_HEAD(&phba->luns); 5625 5626 /* MBOX heartbeat timer */ 5627 setup_timer(&psli->mbox_tmo, lpfc_mbox_timeout, (unsigned long)phba); 5628 /* Fabric block timer */ 5629 setup_timer(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 5630 (unsigned long)phba); 5631 /* EA polling mode timer */ 5632 setup_timer(&phba->eratt_poll, lpfc_poll_eratt, 5633 (unsigned long)phba); 5634 /* Heartbeat timer */ 5635 setup_timer(&phba->hb_tmofunc, lpfc_hb_timeout, (unsigned long)phba); 5636 5637 return 0; 5638 } 5639 5640 /** 5641 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev 5642 * @phba: pointer to lpfc hba data structure. 5643 * 5644 * This routine is invoked to set up the driver internal resources specific to 5645 * support the SLI-3 HBA device it attached to. 5646 * 5647 * Return codes 5648 * 0 - successful 5649 * other values - error 5650 **/ 5651 static int 5652 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 5653 { 5654 int rc; 5655 5656 /* 5657 * Initialize timers used by driver 5658 */ 5659 5660 /* FCP polling mode timer */ 5661 setup_timer(&phba->fcp_poll_timer, lpfc_poll_timeout, 5662 (unsigned long)phba); 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 setup_timer(&phba->rrq_tmr, lpfc_rrq_timeout, (unsigned long)phba); 5833 5834 /* FCF rediscover timer */ 5835 setup_timer(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 5836 (unsigned long)phba); 5837 5838 /* 5839 * Control structure for handling external multi-buffer mailbox 5840 * command pass-through. 5841 */ 5842 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 5843 sizeof(struct lpfc_mbox_ext_buf_ctx)); 5844 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 5845 5846 phba->max_vpi = LPFC_MAX_VPI; 5847 5848 /* This will be set to correct value after the read_config mbox */ 5849 phba->max_vports = 0; 5850 5851 /* Program the default value of vlan_id and fc_map */ 5852 phba->valid_vlan = 0; 5853 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 5854 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 5855 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 5856 5857 /* 5858 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 5859 * we will associate a new ring, for each EQ/CQ/WQ tuple. 5860 * The WQ create will allocate the ring. 5861 */ 5862 5863 /* 5864 * It doesn't matter what family our adapter is in, we are 5865 * limited to 2 Pages, 512 SGEs, for our SGL. 5866 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp 5867 */ 5868 max_buf_size = (2 * SLI4_PAGE_SIZE); 5869 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2) 5870 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2; 5871 5872 /* 5873 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size 5874 * used to create the sg_dma_buf_pool must be calculated. 5875 */ 5876 if (phba->cfg_enable_bg) { 5877 /* 5878 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd, 5879 * the FCP rsp, and a SGE. Sice we have no control 5880 * over how many protection segments the SCSI Layer 5881 * will hand us (ie: there could be one for every block 5882 * in the IO), just allocate enough SGEs to accomidate 5883 * our max amount and we need to limit lpfc_sg_seg_cnt 5884 * to minimize the risk of running out. 5885 */ 5886 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5887 sizeof(struct fcp_rsp) + max_buf_size; 5888 5889 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ 5890 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; 5891 5892 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF) 5893 phba->cfg_sg_seg_cnt = 5894 LPFC_MAX_SG_SLI4_SEG_CNT_DIF; 5895 } else { 5896 /* 5897 * The scsi_buf for a regular I/O holds the FCP cmnd, 5898 * the FCP rsp, a SGE for each, and a SGE for up to 5899 * cfg_sg_seg_cnt data segments. 5900 */ 5901 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5902 sizeof(struct fcp_rsp) + 5903 ((phba->cfg_sg_seg_cnt + 2) * 5904 sizeof(struct sli4_sge)); 5905 5906 /* Total SGEs for scsi_sg_list */ 5907 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5908 5909 /* 5910 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only 5911 * need to post 1 page for the SGL. 5912 */ 5913 } 5914 5915 /* Initialize the host templates with the updated values. */ 5916 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5917 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5918 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; 5919 5920 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) 5921 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; 5922 else 5923 phba->cfg_sg_dma_buf_size = 5924 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); 5925 5926 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5927 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n", 5928 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5929 phba->cfg_total_seg_cnt); 5930 5931 /* Initialize buffer queue management fields */ 5932 INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list); 5933 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 5934 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 5935 5936 /* 5937 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 5938 */ 5939 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5940 /* Initialize the Abort scsi buffer list used by driver */ 5941 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 5942 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 5943 } 5944 5945 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 5946 /* Initialize the Abort nvme buffer list used by driver */ 5947 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock); 5948 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 5949 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 5950 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list); 5951 5952 /* Fast-path XRI aborted CQ Event work queue list */ 5953 INIT_LIST_HEAD(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue); 5954 } 5955 5956 /* This abort list used by worker thread */ 5957 spin_lock_init(&phba->sli4_hba.sgl_list_lock); 5958 spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock); 5959 5960 /* 5961 * Initialize driver internal slow-path work queues 5962 */ 5963 5964 /* Driver internel slow-path CQ Event pool */ 5965 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 5966 /* Response IOCB work queue list */ 5967 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 5968 /* Asynchronous event CQ Event work queue list */ 5969 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 5970 /* Fast-path XRI aborted CQ Event work queue list */ 5971 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 5972 /* Slow-path XRI aborted CQ Event work queue list */ 5973 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 5974 /* Receive queue CQ Event work queue list */ 5975 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 5976 5977 /* Initialize extent block lists. */ 5978 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 5979 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 5980 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 5981 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 5982 5983 /* Initialize mboxq lists. If the early init routines fail 5984 * these lists need to be correctly initialized. 5985 */ 5986 INIT_LIST_HEAD(&phba->sli.mboxq); 5987 INIT_LIST_HEAD(&phba->sli.mboxq_cmpl); 5988 5989 /* initialize optic_state to 0xFF */ 5990 phba->sli4_hba.lnk_info.optic_state = 0xff; 5991 5992 /* Allocate device driver memory */ 5993 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 5994 if (rc) 5995 return -ENOMEM; 5996 5997 /* IF Type 2 ports get initialized now. */ 5998 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5999 LPFC_SLI_INTF_IF_TYPE_2) { 6000 rc = lpfc_pci_function_reset(phba); 6001 if (unlikely(rc)) { 6002 rc = -ENODEV; 6003 goto out_free_mem; 6004 } 6005 phba->temp_sensor_support = 1; 6006 } 6007 6008 /* Create the bootstrap mailbox command */ 6009 rc = lpfc_create_bootstrap_mbox(phba); 6010 if (unlikely(rc)) 6011 goto out_free_mem; 6012 6013 /* Set up the host's endian order with the device. */ 6014 rc = lpfc_setup_endian_order(phba); 6015 if (unlikely(rc)) 6016 goto out_free_bsmbx; 6017 6018 /* Set up the hba's configuration parameters. */ 6019 rc = lpfc_sli4_read_config(phba); 6020 if (unlikely(rc)) 6021 goto out_free_bsmbx; 6022 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba); 6023 if (unlikely(rc)) 6024 goto out_free_bsmbx; 6025 6026 /* IF Type 0 ports get initialized now. */ 6027 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 6028 LPFC_SLI_INTF_IF_TYPE_0) { 6029 rc = lpfc_pci_function_reset(phba); 6030 if (unlikely(rc)) 6031 goto out_free_bsmbx; 6032 } 6033 6034 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6035 GFP_KERNEL); 6036 if (!mboxq) { 6037 rc = -ENOMEM; 6038 goto out_free_bsmbx; 6039 } 6040 6041 /* Check for NVMET being configured */ 6042 phba->nvmet_support = 0; 6043 if (lpfc_enable_nvmet_cnt) { 6044 6045 /* First get WWN of HBA instance */ 6046 lpfc_read_nv(phba, mboxq); 6047 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6048 if (rc != MBX_SUCCESS) { 6049 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6050 "6016 Mailbox failed , mbxCmd x%x " 6051 "READ_NV, mbxStatus x%x\n", 6052 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 6053 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 6054 mempool_free(mboxq, phba->mbox_mem_pool); 6055 rc = -EIO; 6056 goto out_free_bsmbx; 6057 } 6058 mb = &mboxq->u.mb; 6059 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename, 6060 sizeof(uint64_t)); 6061 wwn = cpu_to_be64(wwn); 6062 phba->sli4_hba.wwnn.u.name = wwn; 6063 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, 6064 sizeof(uint64_t)); 6065 /* wwn is WWPN of HBA instance */ 6066 wwn = cpu_to_be64(wwn); 6067 phba->sli4_hba.wwpn.u.name = wwn; 6068 6069 /* Check to see if it matches any module parameter */ 6070 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) { 6071 if (wwn == lpfc_enable_nvmet[i]) { 6072 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC)) 6073 if (lpfc_nvmet_mem_alloc(phba)) 6074 break; 6075 6076 phba->nvmet_support = 1; /* a match */ 6077 6078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6079 "6017 NVME Target %016llx\n", 6080 wwn); 6081 #else 6082 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6083 "6021 Can't enable NVME Target." 6084 " NVME_TARGET_FC infrastructure" 6085 " is not in kernel\n"); 6086 #endif 6087 break; 6088 } 6089 } 6090 } 6091 6092 lpfc_nvme_mod_param_dep(phba); 6093 6094 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 6095 lpfc_supported_pages(mboxq); 6096 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6097 if (!rc) { 6098 mqe = &mboxq->u.mqe; 6099 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 6100 LPFC_MAX_SUPPORTED_PAGES); 6101 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 6102 switch (pn_page[i]) { 6103 case LPFC_SLI4_PARAMETERS: 6104 phba->sli4_hba.pc_sli4_params.supported = 1; 6105 break; 6106 default: 6107 break; 6108 } 6109 } 6110 /* Read the port's SLI4 Parameters capabilities if supported. */ 6111 if (phba->sli4_hba.pc_sli4_params.supported) 6112 rc = lpfc_pc_sli4_params_get(phba, mboxq); 6113 if (rc) { 6114 mempool_free(mboxq, phba->mbox_mem_pool); 6115 rc = -EIO; 6116 goto out_free_bsmbx; 6117 } 6118 } 6119 6120 /* 6121 * Get sli4 parameters that override parameters from Port capabilities. 6122 * If this call fails, it isn't critical unless the SLI4 parameters come 6123 * back in conflict. 6124 */ 6125 rc = lpfc_get_sli4_parameters(phba, mboxq); 6126 if (rc) { 6127 if (phba->sli4_hba.extents_in_use && 6128 phba->sli4_hba.rpi_hdrs_in_use) { 6129 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6130 "2999 Unsupported SLI4 Parameters " 6131 "Extents and RPI headers enabled.\n"); 6132 } 6133 mempool_free(mboxq, phba->mbox_mem_pool); 6134 rc = -EIO; 6135 goto out_free_bsmbx; 6136 } 6137 6138 mempool_free(mboxq, phba->mbox_mem_pool); 6139 6140 /* Verify OAS is supported */ 6141 lpfc_sli4_oas_verify(phba); 6142 if (phba->cfg_fof) 6143 fof_vectors = 1; 6144 6145 /* Verify all the SLI4 queues */ 6146 rc = lpfc_sli4_queue_verify(phba); 6147 if (rc) 6148 goto out_free_bsmbx; 6149 6150 /* Create driver internal CQE event pool */ 6151 rc = lpfc_sli4_cq_event_pool_create(phba); 6152 if (rc) 6153 goto out_free_bsmbx; 6154 6155 /* Initialize sgl lists per host */ 6156 lpfc_init_sgl_list(phba); 6157 6158 /* Allocate and initialize active sgl array */ 6159 rc = lpfc_init_active_sgl_array(phba); 6160 if (rc) { 6161 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6162 "1430 Failed to initialize sgl list.\n"); 6163 goto out_destroy_cq_event_pool; 6164 } 6165 rc = lpfc_sli4_init_rpi_hdrs(phba); 6166 if (rc) { 6167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6168 "1432 Failed to initialize rpi headers.\n"); 6169 goto out_free_active_sgl; 6170 } 6171 6172 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 6173 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 6174 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 6175 GFP_KERNEL); 6176 if (!phba->fcf.fcf_rr_bmask) { 6177 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6178 "2759 Failed allocate memory for FCF round " 6179 "robin failover bmask\n"); 6180 rc = -ENOMEM; 6181 goto out_remove_rpi_hdrs; 6182 } 6183 6184 phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs, 6185 sizeof(struct lpfc_hba_eq_hdl), 6186 GFP_KERNEL); 6187 if (!phba->sli4_hba.hba_eq_hdl) { 6188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6189 "2572 Failed allocate memory for " 6190 "fast-path per-EQ handle array\n"); 6191 rc = -ENOMEM; 6192 goto out_free_fcf_rr_bmask; 6193 } 6194 6195 phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu, 6196 sizeof(struct lpfc_vector_map_info), 6197 GFP_KERNEL); 6198 if (!phba->sli4_hba.cpu_map) { 6199 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6200 "3327 Failed allocate memory for msi-x " 6201 "interrupt vector mapping\n"); 6202 rc = -ENOMEM; 6203 goto out_free_hba_eq_hdl; 6204 } 6205 if (lpfc_used_cpu == NULL) { 6206 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t), 6207 GFP_KERNEL); 6208 if (!lpfc_used_cpu) { 6209 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6210 "3335 Failed allocate memory for msi-x " 6211 "interrupt vector mapping\n"); 6212 kfree(phba->sli4_hba.cpu_map); 6213 rc = -ENOMEM; 6214 goto out_free_hba_eq_hdl; 6215 } 6216 for (i = 0; i < lpfc_present_cpu; i++) 6217 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY; 6218 } 6219 6220 /* 6221 * Enable sr-iov virtual functions if supported and configured 6222 * through the module parameter. 6223 */ 6224 if (phba->cfg_sriov_nr_virtfn > 0) { 6225 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 6226 phba->cfg_sriov_nr_virtfn); 6227 if (rc) { 6228 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6229 "3020 Requested number of SR-IOV " 6230 "virtual functions (%d) is not " 6231 "supported\n", 6232 phba->cfg_sriov_nr_virtfn); 6233 phba->cfg_sriov_nr_virtfn = 0; 6234 } 6235 } 6236 6237 return 0; 6238 6239 out_free_hba_eq_hdl: 6240 kfree(phba->sli4_hba.hba_eq_hdl); 6241 out_free_fcf_rr_bmask: 6242 kfree(phba->fcf.fcf_rr_bmask); 6243 out_remove_rpi_hdrs: 6244 lpfc_sli4_remove_rpi_hdrs(phba); 6245 out_free_active_sgl: 6246 lpfc_free_active_sgl(phba); 6247 out_destroy_cq_event_pool: 6248 lpfc_sli4_cq_event_pool_destroy(phba); 6249 out_free_bsmbx: 6250 lpfc_destroy_bootstrap_mbox(phba); 6251 out_free_mem: 6252 lpfc_mem_free(phba); 6253 return rc; 6254 } 6255 6256 /** 6257 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 6258 * @phba: pointer to lpfc hba data structure. 6259 * 6260 * This routine is invoked to unset the driver internal resources set up 6261 * specific for supporting the SLI-4 HBA device it attached to. 6262 **/ 6263 static void 6264 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 6265 { 6266 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6267 6268 /* Free memory allocated for msi-x interrupt vector to CPU mapping */ 6269 kfree(phba->sli4_hba.cpu_map); 6270 phba->sli4_hba.num_present_cpu = 0; 6271 phba->sli4_hba.num_online_cpu = 0; 6272 phba->sli4_hba.curr_disp_cpu = 0; 6273 6274 /* Free memory allocated for fast-path work queue handles */ 6275 kfree(phba->sli4_hba.hba_eq_hdl); 6276 6277 /* Free the allocated rpi headers. */ 6278 lpfc_sli4_remove_rpi_hdrs(phba); 6279 lpfc_sli4_remove_rpis(phba); 6280 6281 /* Free eligible FCF index bmask */ 6282 kfree(phba->fcf.fcf_rr_bmask); 6283 6284 /* Free the ELS sgl list */ 6285 lpfc_free_active_sgl(phba); 6286 lpfc_free_els_sgl_list(phba); 6287 lpfc_free_nvmet_sgl_list(phba); 6288 6289 /* Free the completion queue EQ event pool */ 6290 lpfc_sli4_cq_event_release_all(phba); 6291 lpfc_sli4_cq_event_pool_destroy(phba); 6292 6293 /* Release resource identifiers. */ 6294 lpfc_sli4_dealloc_resource_identifiers(phba); 6295 6296 /* Free the bsmbx region. */ 6297 lpfc_destroy_bootstrap_mbox(phba); 6298 6299 /* Free the SLI Layer memory with SLI4 HBAs */ 6300 lpfc_mem_free_all(phba); 6301 6302 /* Free the current connect table */ 6303 list_for_each_entry_safe(conn_entry, next_conn_entry, 6304 &phba->fcf_conn_rec_list, list) { 6305 list_del_init(&conn_entry->list); 6306 kfree(conn_entry); 6307 } 6308 6309 return; 6310 } 6311 6312 /** 6313 * lpfc_init_api_table_setup - Set up init api function jump table 6314 * @phba: The hba struct for which this call is being executed. 6315 * @dev_grp: The HBA PCI-Device group number. 6316 * 6317 * This routine sets up the device INIT interface API function jump table 6318 * in @phba struct. 6319 * 6320 * Returns: 0 - success, -ENODEV - failure. 6321 **/ 6322 int 6323 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 6324 { 6325 phba->lpfc_hba_init_link = lpfc_hba_init_link; 6326 phba->lpfc_hba_down_link = lpfc_hba_down_link; 6327 phba->lpfc_selective_reset = lpfc_selective_reset; 6328 switch (dev_grp) { 6329 case LPFC_PCI_DEV_LP: 6330 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 6331 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 6332 phba->lpfc_stop_port = lpfc_stop_port_s3; 6333 break; 6334 case LPFC_PCI_DEV_OC: 6335 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 6336 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 6337 phba->lpfc_stop_port = lpfc_stop_port_s4; 6338 break; 6339 default: 6340 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6341 "1431 Invalid HBA PCI-device group: 0x%x\n", 6342 dev_grp); 6343 return -ENODEV; 6344 break; 6345 } 6346 return 0; 6347 } 6348 6349 /** 6350 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 6351 * @phba: pointer to lpfc hba data structure. 6352 * 6353 * This routine is invoked to set up the driver internal resources after the 6354 * device specific resource setup to support the HBA device it attached to. 6355 * 6356 * Return codes 6357 * 0 - successful 6358 * other values - error 6359 **/ 6360 static int 6361 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 6362 { 6363 int error; 6364 6365 /* Startup the kernel thread for this host adapter. */ 6366 phba->worker_thread = kthread_run(lpfc_do_work, phba, 6367 "lpfc_worker_%d", phba->brd_no); 6368 if (IS_ERR(phba->worker_thread)) { 6369 error = PTR_ERR(phba->worker_thread); 6370 return error; 6371 } 6372 6373 return 0; 6374 } 6375 6376 /** 6377 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 6378 * @phba: pointer to lpfc hba data structure. 6379 * 6380 * This routine is invoked to unset the driver internal resources set up after 6381 * the device specific resource setup for supporting the HBA device it 6382 * attached to. 6383 **/ 6384 static void 6385 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 6386 { 6387 /* Stop kernel worker thread */ 6388 kthread_stop(phba->worker_thread); 6389 } 6390 6391 /** 6392 * lpfc_free_iocb_list - Free iocb list. 6393 * @phba: pointer to lpfc hba data structure. 6394 * 6395 * This routine is invoked to free the driver's IOCB list and memory. 6396 **/ 6397 void 6398 lpfc_free_iocb_list(struct lpfc_hba *phba) 6399 { 6400 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 6401 6402 spin_lock_irq(&phba->hbalock); 6403 list_for_each_entry_safe(iocbq_entry, iocbq_next, 6404 &phba->lpfc_iocb_list, list) { 6405 list_del(&iocbq_entry->list); 6406 kfree(iocbq_entry); 6407 phba->total_iocbq_bufs--; 6408 } 6409 spin_unlock_irq(&phba->hbalock); 6410 6411 return; 6412 } 6413 6414 /** 6415 * lpfc_init_iocb_list - Allocate and initialize iocb list. 6416 * @phba: pointer to lpfc hba data structure. 6417 * 6418 * This routine is invoked to allocate and initizlize the driver's IOCB 6419 * list and set up the IOCB tag array accordingly. 6420 * 6421 * Return codes 6422 * 0 - successful 6423 * other values - error 6424 **/ 6425 int 6426 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 6427 { 6428 struct lpfc_iocbq *iocbq_entry = NULL; 6429 uint16_t iotag; 6430 int i; 6431 6432 /* Initialize and populate the iocb list per host. */ 6433 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 6434 for (i = 0; i < iocb_count; i++) { 6435 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 6436 if (iocbq_entry == NULL) { 6437 printk(KERN_ERR "%s: only allocated %d iocbs of " 6438 "expected %d count. Unloading driver.\n", 6439 __func__, i, LPFC_IOCB_LIST_CNT); 6440 goto out_free_iocbq; 6441 } 6442 6443 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 6444 if (iotag == 0) { 6445 kfree(iocbq_entry); 6446 printk(KERN_ERR "%s: failed to allocate IOTAG. " 6447 "Unloading driver.\n", __func__); 6448 goto out_free_iocbq; 6449 } 6450 iocbq_entry->sli4_lxritag = NO_XRI; 6451 iocbq_entry->sli4_xritag = NO_XRI; 6452 6453 spin_lock_irq(&phba->hbalock); 6454 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 6455 phba->total_iocbq_bufs++; 6456 spin_unlock_irq(&phba->hbalock); 6457 } 6458 6459 return 0; 6460 6461 out_free_iocbq: 6462 lpfc_free_iocb_list(phba); 6463 6464 return -ENOMEM; 6465 } 6466 6467 /** 6468 * lpfc_free_sgl_list - Free a given sgl list. 6469 * @phba: pointer to lpfc hba data structure. 6470 * @sglq_list: pointer to the head of sgl list. 6471 * 6472 * This routine is invoked to free a give sgl list and memory. 6473 **/ 6474 void 6475 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 6476 { 6477 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6478 6479 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 6480 list_del(&sglq_entry->list); 6481 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 6482 kfree(sglq_entry); 6483 } 6484 } 6485 6486 /** 6487 * lpfc_free_els_sgl_list - Free els sgl list. 6488 * @phba: pointer to lpfc hba data structure. 6489 * 6490 * This routine is invoked to free the driver's els sgl list and memory. 6491 **/ 6492 static void 6493 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 6494 { 6495 LIST_HEAD(sglq_list); 6496 6497 /* Retrieve all els sgls from driver list */ 6498 spin_lock_irq(&phba->hbalock); 6499 spin_lock(&phba->sli4_hba.sgl_list_lock); 6500 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list); 6501 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6502 spin_unlock_irq(&phba->hbalock); 6503 6504 /* Now free the sgl list */ 6505 lpfc_free_sgl_list(phba, &sglq_list); 6506 } 6507 6508 /** 6509 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list. 6510 * @phba: pointer to lpfc hba data structure. 6511 * 6512 * This routine is invoked to free the driver's nvmet sgl list and memory. 6513 **/ 6514 static void 6515 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba) 6516 { 6517 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6518 LIST_HEAD(sglq_list); 6519 6520 /* Retrieve all nvmet sgls from driver list */ 6521 spin_lock_irq(&phba->hbalock); 6522 spin_lock(&phba->sli4_hba.sgl_list_lock); 6523 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list); 6524 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6525 spin_unlock_irq(&phba->hbalock); 6526 6527 /* Now free the sgl list */ 6528 list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) { 6529 list_del(&sglq_entry->list); 6530 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys); 6531 kfree(sglq_entry); 6532 } 6533 6534 /* Update the nvmet_xri_cnt to reflect no current sgls. 6535 * The next initialization cycle sets the count and allocates 6536 * the sgls over again. 6537 */ 6538 phba->sli4_hba.nvmet_xri_cnt = 0; 6539 } 6540 6541 /** 6542 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 6543 * @phba: pointer to lpfc hba data structure. 6544 * 6545 * This routine is invoked to allocate the driver's active sgl memory. 6546 * This array will hold the sglq_entry's for active IOs. 6547 **/ 6548 static int 6549 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 6550 { 6551 int size; 6552 size = sizeof(struct lpfc_sglq *); 6553 size *= phba->sli4_hba.max_cfg_param.max_xri; 6554 6555 phba->sli4_hba.lpfc_sglq_active_list = 6556 kzalloc(size, GFP_KERNEL); 6557 if (!phba->sli4_hba.lpfc_sglq_active_list) 6558 return -ENOMEM; 6559 return 0; 6560 } 6561 6562 /** 6563 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 6564 * @phba: pointer to lpfc hba data structure. 6565 * 6566 * This routine is invoked to walk through the array of active sglq entries 6567 * and free all of the resources. 6568 * This is just a place holder for now. 6569 **/ 6570 static void 6571 lpfc_free_active_sgl(struct lpfc_hba *phba) 6572 { 6573 kfree(phba->sli4_hba.lpfc_sglq_active_list); 6574 } 6575 6576 /** 6577 * lpfc_init_sgl_list - Allocate and initialize sgl list. 6578 * @phba: pointer to lpfc hba data structure. 6579 * 6580 * This routine is invoked to allocate and initizlize the driver's sgl 6581 * list and set up the sgl xritag tag array accordingly. 6582 * 6583 **/ 6584 static void 6585 lpfc_init_sgl_list(struct lpfc_hba *phba) 6586 { 6587 /* Initialize and populate the sglq list per host/VF. */ 6588 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list); 6589 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 6590 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list); 6591 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 6592 6593 /* els xri-sgl book keeping */ 6594 phba->sli4_hba.els_xri_cnt = 0; 6595 6596 /* scsi xri-buffer book keeping */ 6597 phba->sli4_hba.scsi_xri_cnt = 0; 6598 6599 /* nvme xri-buffer book keeping */ 6600 phba->sli4_hba.nvme_xri_cnt = 0; 6601 } 6602 6603 /** 6604 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 6605 * @phba: pointer to lpfc hba data structure. 6606 * 6607 * This routine is invoked to post rpi header templates to the 6608 * port for those SLI4 ports that do not support extents. This routine 6609 * posts a PAGE_SIZE memory region to the port to hold up to 6610 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 6611 * and should be called only when interrupts are disabled. 6612 * 6613 * Return codes 6614 * 0 - successful 6615 * -ERROR - otherwise. 6616 **/ 6617 int 6618 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 6619 { 6620 int rc = 0; 6621 struct lpfc_rpi_hdr *rpi_hdr; 6622 6623 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 6624 if (!phba->sli4_hba.rpi_hdrs_in_use) 6625 return rc; 6626 if (phba->sli4_hba.extents_in_use) 6627 return -EIO; 6628 6629 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 6630 if (!rpi_hdr) { 6631 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 6632 "0391 Error during rpi post operation\n"); 6633 lpfc_sli4_remove_rpis(phba); 6634 rc = -ENODEV; 6635 } 6636 6637 return rc; 6638 } 6639 6640 /** 6641 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 6642 * @phba: pointer to lpfc hba data structure. 6643 * 6644 * This routine is invoked to allocate a single 4KB memory region to 6645 * support rpis and stores them in the phba. This single region 6646 * provides support for up to 64 rpis. The region is used globally 6647 * by the device. 6648 * 6649 * Returns: 6650 * A valid rpi hdr on success. 6651 * A NULL pointer on any failure. 6652 **/ 6653 struct lpfc_rpi_hdr * 6654 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 6655 { 6656 uint16_t rpi_limit, curr_rpi_range; 6657 struct lpfc_dmabuf *dmabuf; 6658 struct lpfc_rpi_hdr *rpi_hdr; 6659 6660 /* 6661 * If the SLI4 port supports extents, posting the rpi header isn't 6662 * required. Set the expected maximum count and let the actual value 6663 * get set when extents are fully allocated. 6664 */ 6665 if (!phba->sli4_hba.rpi_hdrs_in_use) 6666 return NULL; 6667 if (phba->sli4_hba.extents_in_use) 6668 return NULL; 6669 6670 /* The limit on the logical index is just the max_rpi count. */ 6671 rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi; 6672 6673 spin_lock_irq(&phba->hbalock); 6674 /* 6675 * Establish the starting RPI in this header block. The starting 6676 * rpi is normalized to a zero base because the physical rpi is 6677 * port based. 6678 */ 6679 curr_rpi_range = phba->sli4_hba.next_rpi; 6680 spin_unlock_irq(&phba->hbalock); 6681 6682 /* Reached full RPI range */ 6683 if (curr_rpi_range == rpi_limit) 6684 return NULL; 6685 6686 /* 6687 * First allocate the protocol header region for the port. The 6688 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 6689 */ 6690 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6691 if (!dmabuf) 6692 return NULL; 6693 6694 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, 6695 LPFC_HDR_TEMPLATE_SIZE, 6696 &dmabuf->phys, GFP_KERNEL); 6697 if (!dmabuf->virt) { 6698 rpi_hdr = NULL; 6699 goto err_free_dmabuf; 6700 } 6701 6702 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 6703 rpi_hdr = NULL; 6704 goto err_free_coherent; 6705 } 6706 6707 /* Save the rpi header data for cleanup later. */ 6708 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 6709 if (!rpi_hdr) 6710 goto err_free_coherent; 6711 6712 rpi_hdr->dmabuf = dmabuf; 6713 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 6714 rpi_hdr->page_count = 1; 6715 spin_lock_irq(&phba->hbalock); 6716 6717 /* The rpi_hdr stores the logical index only. */ 6718 rpi_hdr->start_rpi = curr_rpi_range; 6719 rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT; 6720 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 6721 6722 spin_unlock_irq(&phba->hbalock); 6723 return rpi_hdr; 6724 6725 err_free_coherent: 6726 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 6727 dmabuf->virt, dmabuf->phys); 6728 err_free_dmabuf: 6729 kfree(dmabuf); 6730 return NULL; 6731 } 6732 6733 /** 6734 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 6735 * @phba: pointer to lpfc hba data structure. 6736 * 6737 * This routine is invoked to remove all memory resources allocated 6738 * to support rpis for SLI4 ports not supporting extents. This routine 6739 * presumes the caller has released all rpis consumed by fabric or port 6740 * logins and is prepared to have the header pages removed. 6741 **/ 6742 void 6743 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 6744 { 6745 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 6746 6747 if (!phba->sli4_hba.rpi_hdrs_in_use) 6748 goto exit; 6749 6750 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 6751 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 6752 list_del(&rpi_hdr->list); 6753 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 6754 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 6755 kfree(rpi_hdr->dmabuf); 6756 kfree(rpi_hdr); 6757 } 6758 exit: 6759 /* There are no rpis available to the port now. */ 6760 phba->sli4_hba.next_rpi = 0; 6761 } 6762 6763 /** 6764 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 6765 * @pdev: pointer to pci device data structure. 6766 * 6767 * This routine is invoked to allocate the driver hba data structure for an 6768 * HBA device. If the allocation is successful, the phba reference to the 6769 * PCI device data structure is set. 6770 * 6771 * Return codes 6772 * pointer to @phba - successful 6773 * NULL - error 6774 **/ 6775 static struct lpfc_hba * 6776 lpfc_hba_alloc(struct pci_dev *pdev) 6777 { 6778 struct lpfc_hba *phba; 6779 6780 /* Allocate memory for HBA structure */ 6781 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 6782 if (!phba) { 6783 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 6784 return NULL; 6785 } 6786 6787 /* Set reference to PCI device in HBA structure */ 6788 phba->pcidev = pdev; 6789 6790 /* Assign an unused board number */ 6791 phba->brd_no = lpfc_get_instance(); 6792 if (phba->brd_no < 0) { 6793 kfree(phba); 6794 return NULL; 6795 } 6796 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL; 6797 6798 spin_lock_init(&phba->ct_ev_lock); 6799 INIT_LIST_HEAD(&phba->ct_ev_waiters); 6800 6801 return phba; 6802 } 6803 6804 /** 6805 * lpfc_hba_free - Free driver hba data structure with a device. 6806 * @phba: pointer to lpfc hba data structure. 6807 * 6808 * This routine is invoked to free the driver hba data structure with an 6809 * HBA device. 6810 **/ 6811 static void 6812 lpfc_hba_free(struct lpfc_hba *phba) 6813 { 6814 /* Release the driver assigned board number */ 6815 idr_remove(&lpfc_hba_index, phba->brd_no); 6816 6817 /* Free memory allocated with sli3 rings */ 6818 kfree(phba->sli.sli3_ring); 6819 phba->sli.sli3_ring = NULL; 6820 6821 kfree(phba); 6822 return; 6823 } 6824 6825 /** 6826 * lpfc_create_shost - Create hba physical port with associated scsi host. 6827 * @phba: pointer to lpfc hba data structure. 6828 * 6829 * This routine is invoked to create HBA physical port and associate a SCSI 6830 * host with it. 6831 * 6832 * Return codes 6833 * 0 - successful 6834 * other values - error 6835 **/ 6836 static int 6837 lpfc_create_shost(struct lpfc_hba *phba) 6838 { 6839 struct lpfc_vport *vport; 6840 struct Scsi_Host *shost; 6841 6842 /* Initialize HBA FC structure */ 6843 phba->fc_edtov = FF_DEF_EDTOV; 6844 phba->fc_ratov = FF_DEF_RATOV; 6845 phba->fc_altov = FF_DEF_ALTOV; 6846 phba->fc_arbtov = FF_DEF_ARBTOV; 6847 6848 atomic_set(&phba->sdev_cnt, 0); 6849 atomic_set(&phba->fc4ScsiInputRequests, 0); 6850 atomic_set(&phba->fc4ScsiOutputRequests, 0); 6851 atomic_set(&phba->fc4ScsiControlRequests, 0); 6852 atomic_set(&phba->fc4ScsiIoCmpls, 0); 6853 atomic_set(&phba->fc4NvmeInputRequests, 0); 6854 atomic_set(&phba->fc4NvmeOutputRequests, 0); 6855 atomic_set(&phba->fc4NvmeControlRequests, 0); 6856 atomic_set(&phba->fc4NvmeIoCmpls, 0); 6857 atomic_set(&phba->fc4NvmeLsRequests, 0); 6858 atomic_set(&phba->fc4NvmeLsCmpls, 0); 6859 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 6860 if (!vport) 6861 return -ENODEV; 6862 6863 shost = lpfc_shost_from_vport(vport); 6864 phba->pport = vport; 6865 6866 if (phba->nvmet_support) { 6867 /* Only 1 vport (pport) will support NVME target */ 6868 if (phba->txrdy_payload_pool == NULL) { 6869 phba->txrdy_payload_pool = dma_pool_create( 6870 "txrdy_pool", &phba->pcidev->dev, 6871 TXRDY_PAYLOAD_LEN, 16, 0); 6872 if (phba->txrdy_payload_pool) { 6873 phba->targetport = NULL; 6874 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME; 6875 lpfc_printf_log(phba, KERN_INFO, 6876 LOG_INIT | LOG_NVME_DISC, 6877 "6076 NVME Target Found\n"); 6878 } 6879 } 6880 } 6881 6882 lpfc_debugfs_initialize(vport); 6883 /* Put reference to SCSI host to driver's device private data */ 6884 pci_set_drvdata(phba->pcidev, shost); 6885 6886 /* 6887 * At this point we are fully registered with PSA. In addition, 6888 * any initial discovery should be completed. 6889 */ 6890 vport->load_flag |= FC_ALLOW_FDMI; 6891 if (phba->cfg_enable_SmartSAN || 6892 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { 6893 6894 /* Setup appropriate attribute masks */ 6895 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR; 6896 if (phba->cfg_enable_SmartSAN) 6897 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR; 6898 else 6899 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR; 6900 } 6901 return 0; 6902 } 6903 6904 /** 6905 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 6906 * @phba: pointer to lpfc hba data structure. 6907 * 6908 * This routine is invoked to destroy HBA physical port and the associated 6909 * SCSI host. 6910 **/ 6911 static void 6912 lpfc_destroy_shost(struct lpfc_hba *phba) 6913 { 6914 struct lpfc_vport *vport = phba->pport; 6915 6916 /* Destroy physical port that associated with the SCSI host */ 6917 destroy_port(vport); 6918 6919 return; 6920 } 6921 6922 /** 6923 * lpfc_setup_bg - Setup Block guard structures and debug areas. 6924 * @phba: pointer to lpfc hba data structure. 6925 * @shost: the shost to be used to detect Block guard settings. 6926 * 6927 * This routine sets up the local Block guard protocol settings for @shost. 6928 * This routine also allocates memory for debugging bg buffers. 6929 **/ 6930 static void 6931 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 6932 { 6933 uint32_t old_mask; 6934 uint32_t old_guard; 6935 6936 int pagecnt = 10; 6937 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 6938 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6939 "1478 Registering BlockGuard with the " 6940 "SCSI layer\n"); 6941 6942 old_mask = phba->cfg_prot_mask; 6943 old_guard = phba->cfg_prot_guard; 6944 6945 /* Only allow supported values */ 6946 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 6947 SHOST_DIX_TYPE0_PROTECTION | 6948 SHOST_DIX_TYPE1_PROTECTION); 6949 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP | 6950 SHOST_DIX_GUARD_CRC); 6951 6952 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 6953 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 6954 phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 6955 6956 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 6957 if ((old_mask != phba->cfg_prot_mask) || 6958 (old_guard != phba->cfg_prot_guard)) 6959 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6960 "1475 Registering BlockGuard with the " 6961 "SCSI layer: mask %d guard %d\n", 6962 phba->cfg_prot_mask, 6963 phba->cfg_prot_guard); 6964 6965 scsi_host_set_prot(shost, phba->cfg_prot_mask); 6966 scsi_host_set_guard(shost, phba->cfg_prot_guard); 6967 } else 6968 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6969 "1479 Not Registering BlockGuard with the SCSI " 6970 "layer, Bad protection parameters: %d %d\n", 6971 old_mask, old_guard); 6972 } 6973 6974 if (!_dump_buf_data) { 6975 while (pagecnt) { 6976 spin_lock_init(&_dump_buf_lock); 6977 _dump_buf_data = 6978 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 6979 if (_dump_buf_data) { 6980 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6981 "9043 BLKGRD: allocated %d pages for " 6982 "_dump_buf_data at 0x%p\n", 6983 (1 << pagecnt), _dump_buf_data); 6984 _dump_buf_data_order = pagecnt; 6985 memset(_dump_buf_data, 0, 6986 ((1 << PAGE_SHIFT) << pagecnt)); 6987 break; 6988 } else 6989 --pagecnt; 6990 } 6991 if (!_dump_buf_data_order) 6992 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6993 "9044 BLKGRD: ERROR unable to allocate " 6994 "memory for hexdump\n"); 6995 } else 6996 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6997 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 6998 "\n", _dump_buf_data); 6999 if (!_dump_buf_dif) { 7000 while (pagecnt) { 7001 _dump_buf_dif = 7002 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 7003 if (_dump_buf_dif) { 7004 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7005 "9046 BLKGRD: allocated %d pages for " 7006 "_dump_buf_dif at 0x%p\n", 7007 (1 << pagecnt), _dump_buf_dif); 7008 _dump_buf_dif_order = pagecnt; 7009 memset(_dump_buf_dif, 0, 7010 ((1 << PAGE_SHIFT) << pagecnt)); 7011 break; 7012 } else 7013 --pagecnt; 7014 } 7015 if (!_dump_buf_dif_order) 7016 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7017 "9047 BLKGRD: ERROR unable to allocate " 7018 "memory for hexdump\n"); 7019 } else 7020 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7021 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 7022 _dump_buf_dif); 7023 } 7024 7025 /** 7026 * lpfc_post_init_setup - Perform necessary device post initialization setup. 7027 * @phba: pointer to lpfc hba data structure. 7028 * 7029 * This routine is invoked to perform all the necessary post initialization 7030 * setup for the device. 7031 **/ 7032 static void 7033 lpfc_post_init_setup(struct lpfc_hba *phba) 7034 { 7035 struct Scsi_Host *shost; 7036 struct lpfc_adapter_event_header adapter_event; 7037 7038 /* Get the default values for Model Name and Description */ 7039 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 7040 7041 /* 7042 * hba setup may have changed the hba_queue_depth so we need to 7043 * adjust the value of can_queue. 7044 */ 7045 shost = pci_get_drvdata(phba->pcidev); 7046 shost->can_queue = phba->cfg_hba_queue_depth - 10; 7047 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 7048 lpfc_setup_bg(phba, shost); 7049 7050 lpfc_host_attrib_init(shost); 7051 7052 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 7053 spin_lock_irq(shost->host_lock); 7054 lpfc_poll_start_timer(phba); 7055 spin_unlock_irq(shost->host_lock); 7056 } 7057 7058 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7059 "0428 Perform SCSI scan\n"); 7060 /* Send board arrival event to upper layer */ 7061 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 7062 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 7063 fc_host_post_vendor_event(shost, fc_get_event_number(), 7064 sizeof(adapter_event), 7065 (char *) &adapter_event, 7066 LPFC_NL_VENDOR_ID); 7067 return; 7068 } 7069 7070 /** 7071 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 7072 * @phba: pointer to lpfc hba data structure. 7073 * 7074 * This routine is invoked to set up the PCI device memory space for device 7075 * with SLI-3 interface spec. 7076 * 7077 * Return codes 7078 * 0 - successful 7079 * other values - error 7080 **/ 7081 static int 7082 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 7083 { 7084 struct pci_dev *pdev; 7085 unsigned long bar0map_len, bar2map_len; 7086 int i, hbq_count; 7087 void *ptr; 7088 int error = -ENODEV; 7089 7090 /* Obtain PCI device reference */ 7091 if (!phba->pcidev) 7092 return error; 7093 else 7094 pdev = phba->pcidev; 7095 7096 /* Set the device DMA mask size */ 7097 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7098 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7099 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7100 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7101 return error; 7102 } 7103 } 7104 7105 /* Get the bus address of Bar0 and Bar2 and the number of bytes 7106 * required by each mapping. 7107 */ 7108 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7109 bar0map_len = pci_resource_len(pdev, 0); 7110 7111 phba->pci_bar2_map = pci_resource_start(pdev, 2); 7112 bar2map_len = pci_resource_len(pdev, 2); 7113 7114 /* Map HBA SLIM to a kernel virtual address. */ 7115 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 7116 if (!phba->slim_memmap_p) { 7117 dev_printk(KERN_ERR, &pdev->dev, 7118 "ioremap failed for SLIM memory.\n"); 7119 goto out; 7120 } 7121 7122 /* Map HBA Control Registers to a kernel virtual address. */ 7123 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 7124 if (!phba->ctrl_regs_memmap_p) { 7125 dev_printk(KERN_ERR, &pdev->dev, 7126 "ioremap failed for HBA control registers.\n"); 7127 goto out_iounmap_slim; 7128 } 7129 7130 /* Allocate memory for SLI-2 structures */ 7131 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7132 &phba->slim2p.phys, GFP_KERNEL); 7133 if (!phba->slim2p.virt) 7134 goto out_iounmap; 7135 7136 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 7137 phba->mbox_ext = (phba->slim2p.virt + 7138 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 7139 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 7140 phba->IOCBs = (phba->slim2p.virt + 7141 offsetof(struct lpfc_sli2_slim, IOCBs)); 7142 7143 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 7144 lpfc_sli_hbq_size(), 7145 &phba->hbqslimp.phys, 7146 GFP_KERNEL); 7147 if (!phba->hbqslimp.virt) 7148 goto out_free_slim; 7149 7150 hbq_count = lpfc_sli_hbq_count(); 7151 ptr = phba->hbqslimp.virt; 7152 for (i = 0; i < hbq_count; ++i) { 7153 phba->hbqs[i].hbq_virt = ptr; 7154 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 7155 ptr += (lpfc_hbq_defs[i]->entry_count * 7156 sizeof(struct lpfc_hbq_entry)); 7157 } 7158 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 7159 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 7160 7161 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 7162 7163 phba->MBslimaddr = phba->slim_memmap_p; 7164 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 7165 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 7166 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 7167 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 7168 7169 return 0; 7170 7171 out_free_slim: 7172 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7173 phba->slim2p.virt, phba->slim2p.phys); 7174 out_iounmap: 7175 iounmap(phba->ctrl_regs_memmap_p); 7176 out_iounmap_slim: 7177 iounmap(phba->slim_memmap_p); 7178 out: 7179 return error; 7180 } 7181 7182 /** 7183 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 7184 * @phba: pointer to lpfc hba data structure. 7185 * 7186 * This routine is invoked to unset the PCI device memory space for device 7187 * with SLI-3 interface spec. 7188 **/ 7189 static void 7190 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 7191 { 7192 struct pci_dev *pdev; 7193 7194 /* Obtain PCI device reference */ 7195 if (!phba->pcidev) 7196 return; 7197 else 7198 pdev = phba->pcidev; 7199 7200 /* Free coherent DMA memory allocated */ 7201 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7202 phba->hbqslimp.virt, phba->hbqslimp.phys); 7203 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7204 phba->slim2p.virt, phba->slim2p.phys); 7205 7206 /* I/O memory unmap */ 7207 iounmap(phba->ctrl_regs_memmap_p); 7208 iounmap(phba->slim_memmap_p); 7209 7210 return; 7211 } 7212 7213 /** 7214 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 7215 * @phba: pointer to lpfc hba data structure. 7216 * 7217 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 7218 * done and check status. 7219 * 7220 * Return 0 if successful, otherwise -ENODEV. 7221 **/ 7222 int 7223 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 7224 { 7225 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 7226 struct lpfc_register reg_data; 7227 int i, port_error = 0; 7228 uint32_t if_type; 7229 7230 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 7231 memset(®_data, 0, sizeof(reg_data)); 7232 if (!phba->sli4_hba.PSMPHRregaddr) 7233 return -ENODEV; 7234 7235 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 7236 for (i = 0; i < 3000; i++) { 7237 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 7238 &portsmphr_reg.word0) || 7239 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 7240 /* Port has a fatal POST error, break out */ 7241 port_error = -ENODEV; 7242 break; 7243 } 7244 if (LPFC_POST_STAGE_PORT_READY == 7245 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 7246 break; 7247 msleep(10); 7248 } 7249 7250 /* 7251 * If there was a port error during POST, then don't proceed with 7252 * other register reads as the data may not be valid. Just exit. 7253 */ 7254 if (port_error) { 7255 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7256 "1408 Port Failed POST - portsmphr=0x%x, " 7257 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 7258 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 7259 portsmphr_reg.word0, 7260 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 7261 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 7262 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 7263 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 7264 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 7265 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 7266 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 7267 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 7268 } else { 7269 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7270 "2534 Device Info: SLIFamily=0x%x, " 7271 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 7272 "SLIHint_2=0x%x, FT=0x%x\n", 7273 bf_get(lpfc_sli_intf_sli_family, 7274 &phba->sli4_hba.sli_intf), 7275 bf_get(lpfc_sli_intf_slirev, 7276 &phba->sli4_hba.sli_intf), 7277 bf_get(lpfc_sli_intf_if_type, 7278 &phba->sli4_hba.sli_intf), 7279 bf_get(lpfc_sli_intf_sli_hint1, 7280 &phba->sli4_hba.sli_intf), 7281 bf_get(lpfc_sli_intf_sli_hint2, 7282 &phba->sli4_hba.sli_intf), 7283 bf_get(lpfc_sli_intf_func_type, 7284 &phba->sli4_hba.sli_intf)); 7285 /* 7286 * Check for other Port errors during the initialization 7287 * process. Fail the load if the port did not come up 7288 * correctly. 7289 */ 7290 if_type = bf_get(lpfc_sli_intf_if_type, 7291 &phba->sli4_hba.sli_intf); 7292 switch (if_type) { 7293 case LPFC_SLI_INTF_IF_TYPE_0: 7294 phba->sli4_hba.ue_mask_lo = 7295 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 7296 phba->sli4_hba.ue_mask_hi = 7297 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 7298 uerrlo_reg.word0 = 7299 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 7300 uerrhi_reg.word0 = 7301 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 7302 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 7303 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 7304 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7305 "1422 Unrecoverable Error " 7306 "Detected during POST " 7307 "uerr_lo_reg=0x%x, " 7308 "uerr_hi_reg=0x%x, " 7309 "ue_mask_lo_reg=0x%x, " 7310 "ue_mask_hi_reg=0x%x\n", 7311 uerrlo_reg.word0, 7312 uerrhi_reg.word0, 7313 phba->sli4_hba.ue_mask_lo, 7314 phba->sli4_hba.ue_mask_hi); 7315 port_error = -ENODEV; 7316 } 7317 break; 7318 case LPFC_SLI_INTF_IF_TYPE_2: 7319 /* Final checks. The port status should be clean. */ 7320 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 7321 ®_data.word0) || 7322 (bf_get(lpfc_sliport_status_err, ®_data) && 7323 !bf_get(lpfc_sliport_status_rn, ®_data))) { 7324 phba->work_status[0] = 7325 readl(phba->sli4_hba.u.if_type2. 7326 ERR1regaddr); 7327 phba->work_status[1] = 7328 readl(phba->sli4_hba.u.if_type2. 7329 ERR2regaddr); 7330 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7331 "2888 Unrecoverable port error " 7332 "following POST: port status reg " 7333 "0x%x, port_smphr reg 0x%x, " 7334 "error 1=0x%x, error 2=0x%x\n", 7335 reg_data.word0, 7336 portsmphr_reg.word0, 7337 phba->work_status[0], 7338 phba->work_status[1]); 7339 port_error = -ENODEV; 7340 } 7341 break; 7342 case LPFC_SLI_INTF_IF_TYPE_1: 7343 default: 7344 break; 7345 } 7346 } 7347 return port_error; 7348 } 7349 7350 /** 7351 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 7352 * @phba: pointer to lpfc hba data structure. 7353 * @if_type: The SLI4 interface type getting configured. 7354 * 7355 * This routine is invoked to set up SLI4 BAR0 PCI config space register 7356 * memory map. 7357 **/ 7358 static void 7359 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 7360 { 7361 switch (if_type) { 7362 case LPFC_SLI_INTF_IF_TYPE_0: 7363 phba->sli4_hba.u.if_type0.UERRLOregaddr = 7364 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 7365 phba->sli4_hba.u.if_type0.UERRHIregaddr = 7366 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 7367 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 7368 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 7369 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 7370 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 7371 phba->sli4_hba.SLIINTFregaddr = 7372 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7373 break; 7374 case LPFC_SLI_INTF_IF_TYPE_2: 7375 phba->sli4_hba.u.if_type2.EQDregaddr = 7376 phba->sli4_hba.conf_regs_memmap_p + 7377 LPFC_CTL_PORT_EQ_DELAY_OFFSET; 7378 phba->sli4_hba.u.if_type2.ERR1regaddr = 7379 phba->sli4_hba.conf_regs_memmap_p + 7380 LPFC_CTL_PORT_ER1_OFFSET; 7381 phba->sli4_hba.u.if_type2.ERR2regaddr = 7382 phba->sli4_hba.conf_regs_memmap_p + 7383 LPFC_CTL_PORT_ER2_OFFSET; 7384 phba->sli4_hba.u.if_type2.CTRLregaddr = 7385 phba->sli4_hba.conf_regs_memmap_p + 7386 LPFC_CTL_PORT_CTL_OFFSET; 7387 phba->sli4_hba.u.if_type2.STATUSregaddr = 7388 phba->sli4_hba.conf_regs_memmap_p + 7389 LPFC_CTL_PORT_STA_OFFSET; 7390 phba->sli4_hba.SLIINTFregaddr = 7391 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7392 phba->sli4_hba.PSMPHRregaddr = 7393 phba->sli4_hba.conf_regs_memmap_p + 7394 LPFC_CTL_PORT_SEM_OFFSET; 7395 phba->sli4_hba.RQDBregaddr = 7396 phba->sli4_hba.conf_regs_memmap_p + 7397 LPFC_ULP0_RQ_DOORBELL; 7398 phba->sli4_hba.WQDBregaddr = 7399 phba->sli4_hba.conf_regs_memmap_p + 7400 LPFC_ULP0_WQ_DOORBELL; 7401 phba->sli4_hba.EQCQDBregaddr = 7402 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 7403 phba->sli4_hba.MQDBregaddr = 7404 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 7405 phba->sli4_hba.BMBXregaddr = 7406 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 7407 break; 7408 case LPFC_SLI_INTF_IF_TYPE_1: 7409 default: 7410 dev_printk(KERN_ERR, &phba->pcidev->dev, 7411 "FATAL - unsupported SLI4 interface type - %d\n", 7412 if_type); 7413 break; 7414 } 7415 } 7416 7417 /** 7418 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 7419 * @phba: pointer to lpfc hba data structure. 7420 * 7421 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 7422 * memory map. 7423 **/ 7424 static void 7425 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 7426 { 7427 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7428 LPFC_SLIPORT_IF0_SMPHR; 7429 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7430 LPFC_HST_ISR0; 7431 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7432 LPFC_HST_IMR0; 7433 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7434 LPFC_HST_ISCR0; 7435 } 7436 7437 /** 7438 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 7439 * @phba: pointer to lpfc hba data structure. 7440 * @vf: virtual function number 7441 * 7442 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 7443 * based on the given viftual function number, @vf. 7444 * 7445 * Return 0 if successful, otherwise -ENODEV. 7446 **/ 7447 static int 7448 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 7449 { 7450 if (vf > LPFC_VIR_FUNC_MAX) 7451 return -ENODEV; 7452 7453 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7454 vf * LPFC_VFR_PAGE_SIZE + 7455 LPFC_ULP0_RQ_DOORBELL); 7456 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7457 vf * LPFC_VFR_PAGE_SIZE + 7458 LPFC_ULP0_WQ_DOORBELL); 7459 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7460 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 7461 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7462 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 7463 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7464 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 7465 return 0; 7466 } 7467 7468 /** 7469 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 7470 * @phba: pointer to lpfc hba data structure. 7471 * 7472 * This routine is invoked to create the bootstrap mailbox 7473 * region consistent with the SLI-4 interface spec. This 7474 * routine allocates all memory necessary to communicate 7475 * mailbox commands to the port and sets up all alignment 7476 * needs. No locks are expected to be held when calling 7477 * this routine. 7478 * 7479 * Return codes 7480 * 0 - successful 7481 * -ENOMEM - could not allocated memory. 7482 **/ 7483 static int 7484 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 7485 { 7486 uint32_t bmbx_size; 7487 struct lpfc_dmabuf *dmabuf; 7488 struct dma_address *dma_address; 7489 uint32_t pa_addr; 7490 uint64_t phys_addr; 7491 7492 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 7493 if (!dmabuf) 7494 return -ENOMEM; 7495 7496 /* 7497 * The bootstrap mailbox region is comprised of 2 parts 7498 * plus an alignment restriction of 16 bytes. 7499 */ 7500 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 7501 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size, 7502 &dmabuf->phys, GFP_KERNEL); 7503 if (!dmabuf->virt) { 7504 kfree(dmabuf); 7505 return -ENOMEM; 7506 } 7507 7508 /* 7509 * Initialize the bootstrap mailbox pointers now so that the register 7510 * operations are simple later. The mailbox dma address is required 7511 * to be 16-byte aligned. Also align the virtual memory as each 7512 * maibox is copied into the bmbx mailbox region before issuing the 7513 * command to the port. 7514 */ 7515 phba->sli4_hba.bmbx.dmabuf = dmabuf; 7516 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 7517 7518 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 7519 LPFC_ALIGN_16_BYTE); 7520 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 7521 LPFC_ALIGN_16_BYTE); 7522 7523 /* 7524 * Set the high and low physical addresses now. The SLI4 alignment 7525 * requirement is 16 bytes and the mailbox is posted to the port 7526 * as two 30-bit addresses. The other data is a bit marking whether 7527 * the 30-bit address is the high or low address. 7528 * Upcast bmbx aphys to 64bits so shift instruction compiles 7529 * clean on 32 bit machines. 7530 */ 7531 dma_address = &phba->sli4_hba.bmbx.dma_address; 7532 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 7533 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 7534 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 7535 LPFC_BMBX_BIT1_ADDR_HI); 7536 7537 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 7538 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 7539 LPFC_BMBX_BIT1_ADDR_LO); 7540 return 0; 7541 } 7542 7543 /** 7544 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 7545 * @phba: pointer to lpfc hba data structure. 7546 * 7547 * This routine is invoked to teardown the bootstrap mailbox 7548 * region and release all host resources. This routine requires 7549 * the caller to ensure all mailbox commands recovered, no 7550 * additional mailbox comands are sent, and interrupts are disabled 7551 * before calling this routine. 7552 * 7553 **/ 7554 static void 7555 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 7556 { 7557 dma_free_coherent(&phba->pcidev->dev, 7558 phba->sli4_hba.bmbx.bmbx_size, 7559 phba->sli4_hba.bmbx.dmabuf->virt, 7560 phba->sli4_hba.bmbx.dmabuf->phys); 7561 7562 kfree(phba->sli4_hba.bmbx.dmabuf); 7563 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 7564 } 7565 7566 /** 7567 * lpfc_sli4_read_config - Get the config parameters. 7568 * @phba: pointer to lpfc hba data structure. 7569 * 7570 * This routine is invoked to read the configuration parameters from the HBA. 7571 * The configuration parameters are used to set the base and maximum values 7572 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 7573 * allocation for the port. 7574 * 7575 * Return codes 7576 * 0 - successful 7577 * -ENOMEM - No available memory 7578 * -EIO - The mailbox failed to complete successfully. 7579 **/ 7580 int 7581 lpfc_sli4_read_config(struct lpfc_hba *phba) 7582 { 7583 LPFC_MBOXQ_t *pmb; 7584 struct lpfc_mbx_read_config *rd_config; 7585 union lpfc_sli4_cfg_shdr *shdr; 7586 uint32_t shdr_status, shdr_add_status; 7587 struct lpfc_mbx_get_func_cfg *get_func_cfg; 7588 struct lpfc_rsrc_desc_fcfcoe *desc; 7589 char *pdesc_0; 7590 uint16_t forced_link_speed; 7591 uint32_t if_type; 7592 int length, i, rc = 0, rc2; 7593 7594 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7595 if (!pmb) { 7596 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7597 "2011 Unable to allocate memory for issuing " 7598 "SLI_CONFIG_SPECIAL mailbox command\n"); 7599 return -ENOMEM; 7600 } 7601 7602 lpfc_read_config(phba, pmb); 7603 7604 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7605 if (rc != MBX_SUCCESS) { 7606 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7607 "2012 Mailbox failed , mbxCmd x%x " 7608 "READ_CONFIG, mbxStatus x%x\n", 7609 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7610 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7611 rc = -EIO; 7612 } else { 7613 rd_config = &pmb->u.mqe.un.rd_config; 7614 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 7615 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 7616 phba->sli4_hba.lnk_info.lnk_tp = 7617 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 7618 phba->sli4_hba.lnk_info.lnk_no = 7619 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 7620 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7621 "3081 lnk_type:%d, lnk_numb:%d\n", 7622 phba->sli4_hba.lnk_info.lnk_tp, 7623 phba->sli4_hba.lnk_info.lnk_no); 7624 } else 7625 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 7626 "3082 Mailbox (x%x) returned ldv:x0\n", 7627 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 7628 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) { 7629 phba->bbcredit_support = 1; 7630 phba->sli4_hba.bbscn_params.word0 = rd_config->word8; 7631 } 7632 7633 phba->sli4_hba.extents_in_use = 7634 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 7635 phba->sli4_hba.max_cfg_param.max_xri = 7636 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 7637 phba->sli4_hba.max_cfg_param.xri_base = 7638 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 7639 phba->sli4_hba.max_cfg_param.max_vpi = 7640 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 7641 phba->sli4_hba.max_cfg_param.vpi_base = 7642 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 7643 phba->sli4_hba.max_cfg_param.max_rpi = 7644 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 7645 phba->sli4_hba.max_cfg_param.rpi_base = 7646 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 7647 phba->sli4_hba.max_cfg_param.max_vfi = 7648 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 7649 phba->sli4_hba.max_cfg_param.vfi_base = 7650 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 7651 phba->sli4_hba.max_cfg_param.max_fcfi = 7652 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 7653 phba->sli4_hba.max_cfg_param.max_eq = 7654 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 7655 phba->sli4_hba.max_cfg_param.max_rq = 7656 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 7657 phba->sli4_hba.max_cfg_param.max_wq = 7658 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 7659 phba->sli4_hba.max_cfg_param.max_cq = 7660 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 7661 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 7662 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 7663 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 7664 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 7665 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 7666 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 7667 phba->max_vports = phba->max_vpi; 7668 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7669 "2003 cfg params Extents? %d " 7670 "XRI(B:%d M:%d), " 7671 "VPI(B:%d M:%d) " 7672 "VFI(B:%d M:%d) " 7673 "RPI(B:%d M:%d) " 7674 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n", 7675 phba->sli4_hba.extents_in_use, 7676 phba->sli4_hba.max_cfg_param.xri_base, 7677 phba->sli4_hba.max_cfg_param.max_xri, 7678 phba->sli4_hba.max_cfg_param.vpi_base, 7679 phba->sli4_hba.max_cfg_param.max_vpi, 7680 phba->sli4_hba.max_cfg_param.vfi_base, 7681 phba->sli4_hba.max_cfg_param.max_vfi, 7682 phba->sli4_hba.max_cfg_param.rpi_base, 7683 phba->sli4_hba.max_cfg_param.max_rpi, 7684 phba->sli4_hba.max_cfg_param.max_fcfi, 7685 phba->sli4_hba.max_cfg_param.max_eq, 7686 phba->sli4_hba.max_cfg_param.max_cq, 7687 phba->sli4_hba.max_cfg_param.max_wq, 7688 phba->sli4_hba.max_cfg_param.max_rq); 7689 7690 } 7691 7692 if (rc) 7693 goto read_cfg_out; 7694 7695 /* Update link speed if forced link speed is supported */ 7696 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7697 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7698 forced_link_speed = 7699 bf_get(lpfc_mbx_rd_conf_link_speed, rd_config); 7700 if (forced_link_speed) { 7701 phba->hba_flag |= HBA_FORCED_LINK_SPEED; 7702 7703 switch (forced_link_speed) { 7704 case LINK_SPEED_1G: 7705 phba->cfg_link_speed = 7706 LPFC_USER_LINK_SPEED_1G; 7707 break; 7708 case LINK_SPEED_2G: 7709 phba->cfg_link_speed = 7710 LPFC_USER_LINK_SPEED_2G; 7711 break; 7712 case LINK_SPEED_4G: 7713 phba->cfg_link_speed = 7714 LPFC_USER_LINK_SPEED_4G; 7715 break; 7716 case LINK_SPEED_8G: 7717 phba->cfg_link_speed = 7718 LPFC_USER_LINK_SPEED_8G; 7719 break; 7720 case LINK_SPEED_10G: 7721 phba->cfg_link_speed = 7722 LPFC_USER_LINK_SPEED_10G; 7723 break; 7724 case LINK_SPEED_16G: 7725 phba->cfg_link_speed = 7726 LPFC_USER_LINK_SPEED_16G; 7727 break; 7728 case LINK_SPEED_32G: 7729 phba->cfg_link_speed = 7730 LPFC_USER_LINK_SPEED_32G; 7731 break; 7732 case 0xffff: 7733 phba->cfg_link_speed = 7734 LPFC_USER_LINK_SPEED_AUTO; 7735 break; 7736 default: 7737 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7738 "0047 Unrecognized link " 7739 "speed : %d\n", 7740 forced_link_speed); 7741 phba->cfg_link_speed = 7742 LPFC_USER_LINK_SPEED_AUTO; 7743 } 7744 } 7745 } 7746 7747 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 7748 length = phba->sli4_hba.max_cfg_param.max_xri - 7749 lpfc_sli4_get_els_iocb_cnt(phba); 7750 if (phba->cfg_hba_queue_depth > length) { 7751 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7752 "3361 HBA queue depth changed from %d to %d\n", 7753 phba->cfg_hba_queue_depth, length); 7754 phba->cfg_hba_queue_depth = length; 7755 } 7756 7757 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 7758 LPFC_SLI_INTF_IF_TYPE_2) 7759 goto read_cfg_out; 7760 7761 /* get the pf# and vf# for SLI4 if_type 2 port */ 7762 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 7763 sizeof(struct lpfc_sli4_cfg_mhdr)); 7764 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 7765 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 7766 length, LPFC_SLI4_MBX_EMBED); 7767 7768 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7769 shdr = (union lpfc_sli4_cfg_shdr *) 7770 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 7771 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7772 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7773 if (rc2 || shdr_status || shdr_add_status) { 7774 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7775 "3026 Mailbox failed , mbxCmd x%x " 7776 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 7777 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7778 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7779 goto read_cfg_out; 7780 } 7781 7782 /* search for fc_fcoe resrouce descriptor */ 7783 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 7784 7785 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 7786 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 7787 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 7788 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 7789 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 7790 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 7791 goto read_cfg_out; 7792 7793 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 7794 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 7795 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 7796 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 7797 phba->sli4_hba.iov.pf_number = 7798 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 7799 phba->sli4_hba.iov.vf_number = 7800 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 7801 break; 7802 } 7803 } 7804 7805 if (i < LPFC_RSRC_DESC_MAX_NUM) 7806 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7807 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 7808 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 7809 phba->sli4_hba.iov.vf_number); 7810 else 7811 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7812 "3028 GET_FUNCTION_CONFIG: failed to find " 7813 "Resrouce Descriptor:x%x\n", 7814 LPFC_RSRC_DESC_TYPE_FCFCOE); 7815 7816 read_cfg_out: 7817 mempool_free(pmb, phba->mbox_mem_pool); 7818 return rc; 7819 } 7820 7821 /** 7822 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 7823 * @phba: pointer to lpfc hba data structure. 7824 * 7825 * This routine is invoked to setup the port-side endian order when 7826 * the port if_type is 0. This routine has no function for other 7827 * if_types. 7828 * 7829 * Return codes 7830 * 0 - successful 7831 * -ENOMEM - No available memory 7832 * -EIO - The mailbox failed to complete successfully. 7833 **/ 7834 static int 7835 lpfc_setup_endian_order(struct lpfc_hba *phba) 7836 { 7837 LPFC_MBOXQ_t *mboxq; 7838 uint32_t if_type, rc = 0; 7839 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 7840 HOST_ENDIAN_HIGH_WORD1}; 7841 7842 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7843 switch (if_type) { 7844 case LPFC_SLI_INTF_IF_TYPE_0: 7845 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7846 GFP_KERNEL); 7847 if (!mboxq) { 7848 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7849 "0492 Unable to allocate memory for " 7850 "issuing SLI_CONFIG_SPECIAL mailbox " 7851 "command\n"); 7852 return -ENOMEM; 7853 } 7854 7855 /* 7856 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 7857 * two words to contain special data values and no other data. 7858 */ 7859 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 7860 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 7861 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7862 if (rc != MBX_SUCCESS) { 7863 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7864 "0493 SLI_CONFIG_SPECIAL mailbox " 7865 "failed with status x%x\n", 7866 rc); 7867 rc = -EIO; 7868 } 7869 mempool_free(mboxq, phba->mbox_mem_pool); 7870 break; 7871 case LPFC_SLI_INTF_IF_TYPE_2: 7872 case LPFC_SLI_INTF_IF_TYPE_1: 7873 default: 7874 break; 7875 } 7876 return rc; 7877 } 7878 7879 /** 7880 * lpfc_sli4_queue_verify - Verify and update EQ counts 7881 * @phba: pointer to lpfc hba data structure. 7882 * 7883 * This routine is invoked to check the user settable queue counts for EQs. 7884 * After this routine is called the counts will be set to valid values that 7885 * adhere to the constraints of the system's interrupt vectors and the port's 7886 * queue resources. 7887 * 7888 * Return codes 7889 * 0 - successful 7890 * -ENOMEM - No available memory 7891 **/ 7892 static int 7893 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 7894 { 7895 int io_channel; 7896 int fof_vectors = phba->cfg_fof ? 1 : 0; 7897 7898 /* 7899 * Sanity check for configured queue parameters against the run-time 7900 * device parameters 7901 */ 7902 7903 /* Sanity check on HBA EQ parameters */ 7904 io_channel = phba->io_channel_irqs; 7905 7906 if (phba->sli4_hba.num_online_cpu < io_channel) { 7907 lpfc_printf_log(phba, 7908 KERN_ERR, LOG_INIT, 7909 "3188 Reducing IO channels to match number of " 7910 "online CPUs: from %d to %d\n", 7911 io_channel, phba->sli4_hba.num_online_cpu); 7912 io_channel = phba->sli4_hba.num_online_cpu; 7913 } 7914 7915 if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) { 7916 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7917 "2575 Reducing IO channels to match number of " 7918 "available EQs: from %d to %d\n", 7919 io_channel, 7920 phba->sli4_hba.max_cfg_param.max_eq); 7921 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors; 7922 } 7923 7924 /* The actual number of FCP / NVME event queues adopted */ 7925 if (io_channel != phba->io_channel_irqs) 7926 phba->io_channel_irqs = io_channel; 7927 if (phba->cfg_fcp_io_channel > io_channel) 7928 phba->cfg_fcp_io_channel = io_channel; 7929 if (phba->cfg_nvme_io_channel > io_channel) 7930 phba->cfg_nvme_io_channel = io_channel; 7931 if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq) 7932 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel; 7933 7934 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7935 "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n", 7936 phba->io_channel_irqs, phba->cfg_fcp_io_channel, 7937 phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq); 7938 7939 /* Get EQ depth from module parameter, fake the default for now */ 7940 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 7941 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 7942 7943 /* Get CQ depth from module parameter, fake the default for now */ 7944 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 7945 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 7946 return 0; 7947 } 7948 7949 static int 7950 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx) 7951 { 7952 struct lpfc_queue *qdesc; 7953 int cnt; 7954 7955 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7956 phba->sli4_hba.cq_ecount); 7957 if (!qdesc) { 7958 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7959 "0508 Failed allocate fast-path NVME CQ (%d)\n", 7960 wqidx); 7961 return 1; 7962 } 7963 phba->sli4_hba.nvme_cq[wqidx] = qdesc; 7964 7965 cnt = LPFC_NVME_WQSIZE; 7966 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_WQE128_SIZE, cnt); 7967 if (!qdesc) { 7968 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7969 "0509 Failed allocate fast-path NVME WQ (%d)\n", 7970 wqidx); 7971 return 1; 7972 } 7973 phba->sli4_hba.nvme_wq[wqidx] = qdesc; 7974 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 7975 return 0; 7976 } 7977 7978 static int 7979 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx) 7980 { 7981 struct lpfc_queue *qdesc; 7982 uint32_t wqesize; 7983 7984 /* Create Fast Path FCP CQs */ 7985 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7986 phba->sli4_hba.cq_ecount); 7987 if (!qdesc) { 7988 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7989 "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx); 7990 return 1; 7991 } 7992 phba->sli4_hba.fcp_cq[wqidx] = qdesc; 7993 7994 /* Create Fast Path FCP WQs */ 7995 wqesize = (phba->fcp_embed_io) ? 7996 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 7997 qdesc = lpfc_sli4_queue_alloc(phba, wqesize, phba->sli4_hba.wq_ecount); 7998 if (!qdesc) { 7999 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8000 "0503 Failed allocate fast-path FCP WQ (%d)\n", 8001 wqidx); 8002 return 1; 8003 } 8004 phba->sli4_hba.fcp_wq[wqidx] = qdesc; 8005 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8006 return 0; 8007 } 8008 8009 /** 8010 * lpfc_sli4_queue_create - Create all the SLI4 queues 8011 * @phba: pointer to lpfc hba data structure. 8012 * 8013 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 8014 * operation. For each SLI4 queue type, the parameters such as queue entry 8015 * count (queue depth) shall be taken from the module parameter. For now, 8016 * we just use some constant number as place holder. 8017 * 8018 * Return codes 8019 * 0 - successful 8020 * -ENOMEM - No availble memory 8021 * -EIO - The mailbox failed to complete successfully. 8022 **/ 8023 int 8024 lpfc_sli4_queue_create(struct lpfc_hba *phba) 8025 { 8026 struct lpfc_queue *qdesc; 8027 int idx, io_channel; 8028 8029 /* 8030 * Create HBA Record arrays. 8031 * Both NVME and FCP will share that same vectors / EQs 8032 */ 8033 io_channel = phba->io_channel_irqs; 8034 if (!io_channel) 8035 return -ERANGE; 8036 8037 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 8038 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 8039 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 8040 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 8041 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 8042 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 8043 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 8044 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 8045 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 8046 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 8047 8048 phba->sli4_hba.hba_eq = kcalloc(io_channel, 8049 sizeof(struct lpfc_queue *), 8050 GFP_KERNEL); 8051 if (!phba->sli4_hba.hba_eq) { 8052 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8053 "2576 Failed allocate memory for " 8054 "fast-path EQ record array\n"); 8055 goto out_error; 8056 } 8057 8058 if (phba->cfg_fcp_io_channel) { 8059 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel, 8060 sizeof(struct lpfc_queue *), 8061 GFP_KERNEL); 8062 if (!phba->sli4_hba.fcp_cq) { 8063 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8064 "2577 Failed allocate memory for " 8065 "fast-path CQ record array\n"); 8066 goto out_error; 8067 } 8068 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel, 8069 sizeof(struct lpfc_queue *), 8070 GFP_KERNEL); 8071 if (!phba->sli4_hba.fcp_wq) { 8072 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8073 "2578 Failed allocate memory for " 8074 "fast-path FCP WQ record array\n"); 8075 goto out_error; 8076 } 8077 /* 8078 * Since the first EQ can have multiple CQs associated with it, 8079 * this array is used to quickly see if we have a FCP fast-path 8080 * CQ match. 8081 */ 8082 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel, 8083 sizeof(uint16_t), 8084 GFP_KERNEL); 8085 if (!phba->sli4_hba.fcp_cq_map) { 8086 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8087 "2545 Failed allocate memory for " 8088 "fast-path CQ map\n"); 8089 goto out_error; 8090 } 8091 } 8092 8093 if (phba->cfg_nvme_io_channel) { 8094 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel, 8095 sizeof(struct lpfc_queue *), 8096 GFP_KERNEL); 8097 if (!phba->sli4_hba.nvme_cq) { 8098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8099 "6077 Failed allocate memory for " 8100 "fast-path CQ record array\n"); 8101 goto out_error; 8102 } 8103 8104 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel, 8105 sizeof(struct lpfc_queue *), 8106 GFP_KERNEL); 8107 if (!phba->sli4_hba.nvme_wq) { 8108 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8109 "2581 Failed allocate memory for " 8110 "fast-path NVME WQ record array\n"); 8111 goto out_error; 8112 } 8113 8114 /* 8115 * Since the first EQ can have multiple CQs associated with it, 8116 * this array is used to quickly see if we have a NVME fast-path 8117 * CQ match. 8118 */ 8119 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel, 8120 sizeof(uint16_t), 8121 GFP_KERNEL); 8122 if (!phba->sli4_hba.nvme_cq_map) { 8123 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8124 "6078 Failed allocate memory for " 8125 "fast-path CQ map\n"); 8126 goto out_error; 8127 } 8128 8129 if (phba->nvmet_support) { 8130 phba->sli4_hba.nvmet_cqset = kcalloc( 8131 phba->cfg_nvmet_mrq, 8132 sizeof(struct lpfc_queue *), 8133 GFP_KERNEL); 8134 if (!phba->sli4_hba.nvmet_cqset) { 8135 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8136 "3121 Fail allocate memory for " 8137 "fast-path CQ set array\n"); 8138 goto out_error; 8139 } 8140 phba->sli4_hba.nvmet_mrq_hdr = kcalloc( 8141 phba->cfg_nvmet_mrq, 8142 sizeof(struct lpfc_queue *), 8143 GFP_KERNEL); 8144 if (!phba->sli4_hba.nvmet_mrq_hdr) { 8145 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8146 "3122 Fail allocate memory for " 8147 "fast-path RQ set hdr array\n"); 8148 goto out_error; 8149 } 8150 phba->sli4_hba.nvmet_mrq_data = kcalloc( 8151 phba->cfg_nvmet_mrq, 8152 sizeof(struct lpfc_queue *), 8153 GFP_KERNEL); 8154 if (!phba->sli4_hba.nvmet_mrq_data) { 8155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8156 "3124 Fail allocate memory for " 8157 "fast-path RQ set data array\n"); 8158 goto out_error; 8159 } 8160 } 8161 } 8162 8163 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8164 8165 /* Create HBA Event Queues (EQs) */ 8166 for (idx = 0; idx < io_channel; idx++) { 8167 /* Create EQs */ 8168 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 8169 phba->sli4_hba.eq_ecount); 8170 if (!qdesc) { 8171 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8172 "0497 Failed allocate EQ (%d)\n", idx); 8173 goto out_error; 8174 } 8175 phba->sli4_hba.hba_eq[idx] = qdesc; 8176 } 8177 8178 /* FCP and NVME io channels are not required to be balanced */ 8179 8180 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 8181 if (lpfc_alloc_fcp_wq_cq(phba, idx)) 8182 goto out_error; 8183 8184 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 8185 if (lpfc_alloc_nvme_wq_cq(phba, idx)) 8186 goto out_error; 8187 8188 if (phba->nvmet_support) { 8189 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8190 qdesc = lpfc_sli4_queue_alloc(phba, 8191 phba->sli4_hba.cq_esize, 8192 phba->sli4_hba.cq_ecount); 8193 if (!qdesc) { 8194 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8195 "3142 Failed allocate NVME " 8196 "CQ Set (%d)\n", idx); 8197 goto out_error; 8198 } 8199 phba->sli4_hba.nvmet_cqset[idx] = qdesc; 8200 } 8201 } 8202 8203 /* 8204 * Create Slow Path Completion Queues (CQs) 8205 */ 8206 8207 /* Create slow-path Mailbox Command Complete Queue */ 8208 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8209 phba->sli4_hba.cq_ecount); 8210 if (!qdesc) { 8211 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8212 "0500 Failed allocate slow-path mailbox CQ\n"); 8213 goto out_error; 8214 } 8215 phba->sli4_hba.mbx_cq = qdesc; 8216 8217 /* Create slow-path ELS Complete Queue */ 8218 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8219 phba->sli4_hba.cq_ecount); 8220 if (!qdesc) { 8221 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8222 "0501 Failed allocate slow-path ELS CQ\n"); 8223 goto out_error; 8224 } 8225 phba->sli4_hba.els_cq = qdesc; 8226 8227 8228 /* 8229 * Create Slow Path Work Queues (WQs) 8230 */ 8231 8232 /* Create Mailbox Command Queue */ 8233 8234 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 8235 phba->sli4_hba.mq_ecount); 8236 if (!qdesc) { 8237 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8238 "0505 Failed allocate slow-path MQ\n"); 8239 goto out_error; 8240 } 8241 phba->sli4_hba.mbx_wq = qdesc; 8242 8243 /* 8244 * Create ELS Work Queues 8245 */ 8246 8247 /* Create slow-path ELS Work Queue */ 8248 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 8249 phba->sli4_hba.wq_ecount); 8250 if (!qdesc) { 8251 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8252 "0504 Failed allocate slow-path ELS WQ\n"); 8253 goto out_error; 8254 } 8255 phba->sli4_hba.els_wq = qdesc; 8256 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8257 8258 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 8259 /* Create NVME LS Complete Queue */ 8260 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8261 phba->sli4_hba.cq_ecount); 8262 if (!qdesc) { 8263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8264 "6079 Failed allocate NVME LS CQ\n"); 8265 goto out_error; 8266 } 8267 phba->sli4_hba.nvmels_cq = qdesc; 8268 8269 /* Create NVME LS Work Queue */ 8270 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 8271 phba->sli4_hba.wq_ecount); 8272 if (!qdesc) { 8273 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8274 "6080 Failed allocate NVME LS WQ\n"); 8275 goto out_error; 8276 } 8277 phba->sli4_hba.nvmels_wq = qdesc; 8278 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8279 } 8280 8281 /* 8282 * Create Receive Queue (RQ) 8283 */ 8284 8285 /* Create Receive Queue for header */ 8286 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 8287 phba->sli4_hba.rq_ecount); 8288 if (!qdesc) { 8289 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8290 "0506 Failed allocate receive HRQ\n"); 8291 goto out_error; 8292 } 8293 phba->sli4_hba.hdr_rq = qdesc; 8294 8295 /* Create Receive Queue for data */ 8296 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 8297 phba->sli4_hba.rq_ecount); 8298 if (!qdesc) { 8299 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8300 "0507 Failed allocate receive DRQ\n"); 8301 goto out_error; 8302 } 8303 phba->sli4_hba.dat_rq = qdesc; 8304 8305 if (phba->nvmet_support) { 8306 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8307 /* Create NVMET Receive Queue for header */ 8308 qdesc = lpfc_sli4_queue_alloc(phba, 8309 phba->sli4_hba.rq_esize, 8310 LPFC_NVMET_RQE_DEF_COUNT); 8311 if (!qdesc) { 8312 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8313 "3146 Failed allocate " 8314 "receive HRQ\n"); 8315 goto out_error; 8316 } 8317 phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc; 8318 8319 /* Only needed for header of RQ pair */ 8320 qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb), 8321 GFP_KERNEL); 8322 if (qdesc->rqbp == NULL) { 8323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8324 "6131 Failed allocate " 8325 "Header RQBP\n"); 8326 goto out_error; 8327 } 8328 8329 /* Put list in known state in case driver load fails. */ 8330 INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list); 8331 8332 /* Create NVMET Receive Queue for data */ 8333 qdesc = lpfc_sli4_queue_alloc(phba, 8334 phba->sli4_hba.rq_esize, 8335 LPFC_NVMET_RQE_DEF_COUNT); 8336 if (!qdesc) { 8337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8338 "3156 Failed allocate " 8339 "receive DRQ\n"); 8340 goto out_error; 8341 } 8342 phba->sli4_hba.nvmet_mrq_data[idx] = qdesc; 8343 } 8344 } 8345 8346 /* Create the Queues needed for Flash Optimized Fabric operations */ 8347 if (phba->cfg_fof) 8348 lpfc_fof_queue_create(phba); 8349 return 0; 8350 8351 out_error: 8352 lpfc_sli4_queue_destroy(phba); 8353 return -ENOMEM; 8354 } 8355 8356 static inline void 8357 __lpfc_sli4_release_queue(struct lpfc_queue **qp) 8358 { 8359 if (*qp != NULL) { 8360 lpfc_sli4_queue_free(*qp); 8361 *qp = NULL; 8362 } 8363 } 8364 8365 static inline void 8366 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max) 8367 { 8368 int idx; 8369 8370 if (*qs == NULL) 8371 return; 8372 8373 for (idx = 0; idx < max; idx++) 8374 __lpfc_sli4_release_queue(&(*qs)[idx]); 8375 8376 kfree(*qs); 8377 *qs = NULL; 8378 } 8379 8380 static inline void 8381 lpfc_sli4_release_queue_map(uint16_t **qmap) 8382 { 8383 if (*qmap != NULL) { 8384 kfree(*qmap); 8385 *qmap = NULL; 8386 } 8387 } 8388 8389 /** 8390 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 8391 * @phba: pointer to lpfc hba data structure. 8392 * 8393 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 8394 * operation. 8395 * 8396 * Return codes 8397 * 0 - successful 8398 * -ENOMEM - No available memory 8399 * -EIO - The mailbox failed to complete successfully. 8400 **/ 8401 void 8402 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 8403 { 8404 if (phba->cfg_fof) 8405 lpfc_fof_queue_destroy(phba); 8406 8407 /* Release HBA eqs */ 8408 lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs); 8409 8410 /* Release FCP cqs */ 8411 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq, 8412 phba->cfg_fcp_io_channel); 8413 8414 /* Release FCP wqs */ 8415 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq, 8416 phba->cfg_fcp_io_channel); 8417 8418 /* Release FCP CQ mapping array */ 8419 lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map); 8420 8421 /* Release NVME cqs */ 8422 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq, 8423 phba->cfg_nvme_io_channel); 8424 8425 /* Release NVME wqs */ 8426 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq, 8427 phba->cfg_nvme_io_channel); 8428 8429 /* Release NVME CQ mapping array */ 8430 lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map); 8431 8432 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset, 8433 phba->cfg_nvmet_mrq); 8434 8435 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr, 8436 phba->cfg_nvmet_mrq); 8437 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data, 8438 phba->cfg_nvmet_mrq); 8439 8440 /* Release mailbox command work queue */ 8441 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq); 8442 8443 /* Release ELS work queue */ 8444 __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq); 8445 8446 /* Release ELS work queue */ 8447 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq); 8448 8449 /* Release unsolicited receive queue */ 8450 __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq); 8451 __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq); 8452 8453 /* Release ELS complete queue */ 8454 __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq); 8455 8456 /* Release NVME LS complete queue */ 8457 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq); 8458 8459 /* Release mailbox command complete queue */ 8460 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq); 8461 8462 /* Everything on this list has been freed */ 8463 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8464 } 8465 8466 int 8467 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq) 8468 { 8469 struct lpfc_rqb *rqbp; 8470 struct lpfc_dmabuf *h_buf; 8471 struct rqb_dmabuf *rqb_buffer; 8472 8473 rqbp = rq->rqbp; 8474 while (!list_empty(&rqbp->rqb_buffer_list)) { 8475 list_remove_head(&rqbp->rqb_buffer_list, h_buf, 8476 struct lpfc_dmabuf, list); 8477 8478 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf); 8479 (rqbp->rqb_free_buffer)(phba, rqb_buffer); 8480 rqbp->buffer_count--; 8481 } 8482 return 1; 8483 } 8484 8485 static int 8486 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq, 8487 struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map, 8488 int qidx, uint32_t qtype) 8489 { 8490 struct lpfc_sli_ring *pring; 8491 int rc; 8492 8493 if (!eq || !cq || !wq) { 8494 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8495 "6085 Fast-path %s (%d) not allocated\n", 8496 ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx); 8497 return -ENOMEM; 8498 } 8499 8500 /* create the Cq first */ 8501 rc = lpfc_cq_create(phba, cq, eq, 8502 (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype); 8503 if (rc) { 8504 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8505 "6086 Failed setup of CQ (%d), rc = 0x%x\n", 8506 qidx, (uint32_t)rc); 8507 return rc; 8508 } 8509 8510 if (qtype != LPFC_MBOX) { 8511 /* Setup nvme_cq_map for fast lookup */ 8512 if (cq_map) 8513 *cq_map = cq->queue_id; 8514 8515 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8516 "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n", 8517 qidx, cq->queue_id, qidx, eq->queue_id); 8518 8519 /* create the wq */ 8520 rc = lpfc_wq_create(phba, wq, cq, qtype); 8521 if (rc) { 8522 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8523 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n", 8524 qidx, (uint32_t)rc); 8525 /* no need to tear down cq - caller will do so */ 8526 return rc; 8527 } 8528 8529 /* Bind this CQ/WQ to the NVME ring */ 8530 pring = wq->pring; 8531 pring->sli.sli4.wqp = (void *)wq; 8532 cq->pring = pring; 8533 8534 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8535 "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n", 8536 qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id); 8537 } else { 8538 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX); 8539 if (rc) { 8540 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8541 "0539 Failed setup of slow-path MQ: " 8542 "rc = 0x%x\n", rc); 8543 /* no need to tear down cq - caller will do so */ 8544 return rc; 8545 } 8546 8547 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8548 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 8549 phba->sli4_hba.mbx_wq->queue_id, 8550 phba->sli4_hba.mbx_cq->queue_id); 8551 } 8552 8553 return 0; 8554 } 8555 8556 /** 8557 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 8558 * @phba: pointer to lpfc hba data structure. 8559 * 8560 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 8561 * operation. 8562 * 8563 * Return codes 8564 * 0 - successful 8565 * -ENOMEM - No available memory 8566 * -EIO - The mailbox failed to complete successfully. 8567 **/ 8568 int 8569 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 8570 { 8571 uint32_t shdr_status, shdr_add_status; 8572 union lpfc_sli4_cfg_shdr *shdr; 8573 LPFC_MBOXQ_t *mboxq; 8574 int qidx; 8575 uint32_t length, io_channel; 8576 int rc = -ENOMEM; 8577 8578 /* Check for dual-ULP support */ 8579 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 8580 if (!mboxq) { 8581 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8582 "3249 Unable to allocate memory for " 8583 "QUERY_FW_CFG mailbox command\n"); 8584 return -ENOMEM; 8585 } 8586 length = (sizeof(struct lpfc_mbx_query_fw_config) - 8587 sizeof(struct lpfc_sli4_cfg_mhdr)); 8588 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8589 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 8590 length, LPFC_SLI4_MBX_EMBED); 8591 8592 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8593 8594 shdr = (union lpfc_sli4_cfg_shdr *) 8595 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 8596 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 8597 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 8598 if (shdr_status || shdr_add_status || rc) { 8599 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8600 "3250 QUERY_FW_CFG mailbox failed with status " 8601 "x%x add_status x%x, mbx status x%x\n", 8602 shdr_status, shdr_add_status, rc); 8603 if (rc != MBX_TIMEOUT) 8604 mempool_free(mboxq, phba->mbox_mem_pool); 8605 rc = -ENXIO; 8606 goto out_error; 8607 } 8608 8609 phba->sli4_hba.fw_func_mode = 8610 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; 8611 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; 8612 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; 8613 phba->sli4_hba.physical_port = 8614 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port; 8615 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8616 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " 8617 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, 8618 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); 8619 8620 if (rc != MBX_TIMEOUT) 8621 mempool_free(mboxq, phba->mbox_mem_pool); 8622 8623 /* 8624 * Set up HBA Event Queues (EQs) 8625 */ 8626 io_channel = phba->io_channel_irqs; 8627 8628 /* Set up HBA event queue */ 8629 if (io_channel && !phba->sli4_hba.hba_eq) { 8630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8631 "3147 Fast-path EQs not allocated\n"); 8632 rc = -ENOMEM; 8633 goto out_error; 8634 } 8635 for (qidx = 0; qidx < io_channel; qidx++) { 8636 if (!phba->sli4_hba.hba_eq[qidx]) { 8637 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8638 "0522 Fast-path EQ (%d) not " 8639 "allocated\n", qidx); 8640 rc = -ENOMEM; 8641 goto out_destroy; 8642 } 8643 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx], 8644 phba->cfg_fcp_imax); 8645 if (rc) { 8646 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8647 "0523 Failed setup of fast-path EQ " 8648 "(%d), rc = 0x%x\n", qidx, 8649 (uint32_t)rc); 8650 goto out_destroy; 8651 } 8652 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8653 "2584 HBA EQ setup: queue[%d]-id=%d\n", 8654 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id); 8655 } 8656 8657 if (phba->cfg_nvme_io_channel) { 8658 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) { 8659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8660 "6084 Fast-path NVME %s array not allocated\n", 8661 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ"); 8662 rc = -ENOMEM; 8663 goto out_destroy; 8664 } 8665 8666 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 8667 rc = lpfc_create_wq_cq(phba, 8668 phba->sli4_hba.hba_eq[ 8669 qidx % io_channel], 8670 phba->sli4_hba.nvme_cq[qidx], 8671 phba->sli4_hba.nvme_wq[qidx], 8672 &phba->sli4_hba.nvme_cq_map[qidx], 8673 qidx, LPFC_NVME); 8674 if (rc) { 8675 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8676 "6123 Failed to setup fastpath " 8677 "NVME WQ/CQ (%d), rc = 0x%x\n", 8678 qidx, (uint32_t)rc); 8679 goto out_destroy; 8680 } 8681 } 8682 } 8683 8684 if (phba->cfg_fcp_io_channel) { 8685 /* Set up fast-path FCP Response Complete Queue */ 8686 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) { 8687 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8688 "3148 Fast-path FCP %s array not allocated\n", 8689 phba->sli4_hba.fcp_cq ? "WQ" : "CQ"); 8690 rc = -ENOMEM; 8691 goto out_destroy; 8692 } 8693 8694 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 8695 rc = lpfc_create_wq_cq(phba, 8696 phba->sli4_hba.hba_eq[ 8697 qidx % io_channel], 8698 phba->sli4_hba.fcp_cq[qidx], 8699 phba->sli4_hba.fcp_wq[qidx], 8700 &phba->sli4_hba.fcp_cq_map[qidx], 8701 qidx, LPFC_FCP); 8702 if (rc) { 8703 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8704 "0535 Failed to setup fastpath " 8705 "FCP WQ/CQ (%d), rc = 0x%x\n", 8706 qidx, (uint32_t)rc); 8707 goto out_destroy; 8708 } 8709 } 8710 } 8711 8712 /* 8713 * Set up Slow Path Complete Queues (CQs) 8714 */ 8715 8716 /* Set up slow-path MBOX CQ/MQ */ 8717 8718 if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) { 8719 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8720 "0528 %s not allocated\n", 8721 phba->sli4_hba.mbx_cq ? 8722 "Mailbox WQ" : "Mailbox CQ"); 8723 rc = -ENOMEM; 8724 goto out_destroy; 8725 } 8726 8727 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8728 phba->sli4_hba.mbx_cq, 8729 phba->sli4_hba.mbx_wq, 8730 NULL, 0, LPFC_MBOX); 8731 if (rc) { 8732 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8733 "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n", 8734 (uint32_t)rc); 8735 goto out_destroy; 8736 } 8737 if (phba->nvmet_support) { 8738 if (!phba->sli4_hba.nvmet_cqset) { 8739 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8740 "3165 Fast-path NVME CQ Set " 8741 "array not allocated\n"); 8742 rc = -ENOMEM; 8743 goto out_destroy; 8744 } 8745 if (phba->cfg_nvmet_mrq > 1) { 8746 rc = lpfc_cq_create_set(phba, 8747 phba->sli4_hba.nvmet_cqset, 8748 phba->sli4_hba.hba_eq, 8749 LPFC_WCQ, LPFC_NVMET); 8750 if (rc) { 8751 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8752 "3164 Failed setup of NVME CQ " 8753 "Set, rc = 0x%x\n", 8754 (uint32_t)rc); 8755 goto out_destroy; 8756 } 8757 } else { 8758 /* Set up NVMET Receive Complete Queue */ 8759 rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0], 8760 phba->sli4_hba.hba_eq[0], 8761 LPFC_WCQ, LPFC_NVMET); 8762 if (rc) { 8763 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8764 "6089 Failed setup NVMET CQ: " 8765 "rc = 0x%x\n", (uint32_t)rc); 8766 goto out_destroy; 8767 } 8768 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8769 "6090 NVMET CQ setup: cq-id=%d, " 8770 "parent eq-id=%d\n", 8771 phba->sli4_hba.nvmet_cqset[0]->queue_id, 8772 phba->sli4_hba.hba_eq[0]->queue_id); 8773 } 8774 } 8775 8776 /* Set up slow-path ELS WQ/CQ */ 8777 if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) { 8778 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8779 "0530 ELS %s not allocated\n", 8780 phba->sli4_hba.els_cq ? "WQ" : "CQ"); 8781 rc = -ENOMEM; 8782 goto out_destroy; 8783 } 8784 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8785 phba->sli4_hba.els_cq, 8786 phba->sli4_hba.els_wq, 8787 NULL, 0, LPFC_ELS); 8788 if (rc) { 8789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8790 "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n", 8791 (uint32_t)rc); 8792 goto out_destroy; 8793 } 8794 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8795 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 8796 phba->sli4_hba.els_wq->queue_id, 8797 phba->sli4_hba.els_cq->queue_id); 8798 8799 if (phba->cfg_nvme_io_channel) { 8800 /* Set up NVME LS Complete Queue */ 8801 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) { 8802 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8803 "6091 LS %s not allocated\n", 8804 phba->sli4_hba.nvmels_cq ? "WQ" : "CQ"); 8805 rc = -ENOMEM; 8806 goto out_destroy; 8807 } 8808 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8809 phba->sli4_hba.nvmels_cq, 8810 phba->sli4_hba.nvmels_wq, 8811 NULL, 0, LPFC_NVME_LS); 8812 if (rc) { 8813 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8814 "0529 Failed setup of NVVME LS WQ/CQ: " 8815 "rc = 0x%x\n", (uint32_t)rc); 8816 goto out_destroy; 8817 } 8818 8819 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8820 "6096 ELS WQ setup: wq-id=%d, " 8821 "parent cq-id=%d\n", 8822 phba->sli4_hba.nvmels_wq->queue_id, 8823 phba->sli4_hba.nvmels_cq->queue_id); 8824 } 8825 8826 /* 8827 * Create NVMET Receive Queue (RQ) 8828 */ 8829 if (phba->nvmet_support) { 8830 if ((!phba->sli4_hba.nvmet_cqset) || 8831 (!phba->sli4_hba.nvmet_mrq_hdr) || 8832 (!phba->sli4_hba.nvmet_mrq_data)) { 8833 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8834 "6130 MRQ CQ Queues not " 8835 "allocated\n"); 8836 rc = -ENOMEM; 8837 goto out_destroy; 8838 } 8839 if (phba->cfg_nvmet_mrq > 1) { 8840 rc = lpfc_mrq_create(phba, 8841 phba->sli4_hba.nvmet_mrq_hdr, 8842 phba->sli4_hba.nvmet_mrq_data, 8843 phba->sli4_hba.nvmet_cqset, 8844 LPFC_NVMET); 8845 if (rc) { 8846 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8847 "6098 Failed setup of NVMET " 8848 "MRQ: rc = 0x%x\n", 8849 (uint32_t)rc); 8850 goto out_destroy; 8851 } 8852 8853 } else { 8854 rc = lpfc_rq_create(phba, 8855 phba->sli4_hba.nvmet_mrq_hdr[0], 8856 phba->sli4_hba.nvmet_mrq_data[0], 8857 phba->sli4_hba.nvmet_cqset[0], 8858 LPFC_NVMET); 8859 if (rc) { 8860 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8861 "6057 Failed setup of NVMET " 8862 "Receive Queue: rc = 0x%x\n", 8863 (uint32_t)rc); 8864 goto out_destroy; 8865 } 8866 8867 lpfc_printf_log( 8868 phba, KERN_INFO, LOG_INIT, 8869 "6099 NVMET RQ setup: hdr-rq-id=%d, " 8870 "dat-rq-id=%d parent cq-id=%d\n", 8871 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id, 8872 phba->sli4_hba.nvmet_mrq_data[0]->queue_id, 8873 phba->sli4_hba.nvmet_cqset[0]->queue_id); 8874 8875 } 8876 } 8877 8878 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 8879 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8880 "0540 Receive Queue not allocated\n"); 8881 rc = -ENOMEM; 8882 goto out_destroy; 8883 } 8884 8885 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 8886 phba->sli4_hba.els_cq, LPFC_USOL); 8887 if (rc) { 8888 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8889 "0541 Failed setup of Receive Queue: " 8890 "rc = 0x%x\n", (uint32_t)rc); 8891 goto out_destroy; 8892 } 8893 8894 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8895 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 8896 "parent cq-id=%d\n", 8897 phba->sli4_hba.hdr_rq->queue_id, 8898 phba->sli4_hba.dat_rq->queue_id, 8899 phba->sli4_hba.els_cq->queue_id); 8900 8901 if (phba->cfg_fof) { 8902 rc = lpfc_fof_queue_setup(phba); 8903 if (rc) { 8904 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8905 "0549 Failed setup of FOF Queues: " 8906 "rc = 0x%x\n", rc); 8907 goto out_destroy; 8908 } 8909 } 8910 8911 for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT) 8912 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT, 8913 phba->cfg_fcp_imax); 8914 8915 return 0; 8916 8917 out_destroy: 8918 lpfc_sli4_queue_unset(phba); 8919 out_error: 8920 return rc; 8921 } 8922 8923 /** 8924 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 8925 * @phba: pointer to lpfc hba data structure. 8926 * 8927 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 8928 * operation. 8929 * 8930 * Return codes 8931 * 0 - successful 8932 * -ENOMEM - No available memory 8933 * -EIO - The mailbox failed to complete successfully. 8934 **/ 8935 void 8936 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 8937 { 8938 int qidx; 8939 8940 /* Unset the queues created for Flash Optimized Fabric operations */ 8941 if (phba->cfg_fof) 8942 lpfc_fof_queue_destroy(phba); 8943 8944 /* Unset mailbox command work queue */ 8945 if (phba->sli4_hba.mbx_wq) 8946 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 8947 8948 /* Unset NVME LS work queue */ 8949 if (phba->sli4_hba.nvmels_wq) 8950 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq); 8951 8952 /* Unset ELS work queue */ 8953 if (phba->sli4_hba.els_wq) 8954 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 8955 8956 /* Unset unsolicited receive queue */ 8957 if (phba->sli4_hba.hdr_rq) 8958 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, 8959 phba->sli4_hba.dat_rq); 8960 8961 /* Unset FCP work queue */ 8962 if (phba->sli4_hba.fcp_wq) 8963 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 8964 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]); 8965 8966 /* Unset NVME work queue */ 8967 if (phba->sli4_hba.nvme_wq) { 8968 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 8969 lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]); 8970 } 8971 8972 /* Unset mailbox command complete queue */ 8973 if (phba->sli4_hba.mbx_cq) 8974 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 8975 8976 /* Unset ELS complete queue */ 8977 if (phba->sli4_hba.els_cq) 8978 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 8979 8980 /* Unset NVME LS complete queue */ 8981 if (phba->sli4_hba.nvmels_cq) 8982 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq); 8983 8984 /* Unset NVME response complete queue */ 8985 if (phba->sli4_hba.nvme_cq) 8986 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 8987 lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]); 8988 8989 /* Unset NVMET MRQ queue */ 8990 if (phba->sli4_hba.nvmet_mrq_hdr) { 8991 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 8992 lpfc_rq_destroy(phba, 8993 phba->sli4_hba.nvmet_mrq_hdr[qidx], 8994 phba->sli4_hba.nvmet_mrq_data[qidx]); 8995 } 8996 8997 /* Unset NVMET CQ Set complete queue */ 8998 if (phba->sli4_hba.nvmet_cqset) { 8999 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 9000 lpfc_cq_destroy(phba, 9001 phba->sli4_hba.nvmet_cqset[qidx]); 9002 } 9003 9004 /* Unset FCP response complete queue */ 9005 if (phba->sli4_hba.fcp_cq) 9006 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 9007 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]); 9008 9009 /* Unset fast-path event queue */ 9010 if (phba->sli4_hba.hba_eq) 9011 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) 9012 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]); 9013 } 9014 9015 /** 9016 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 9017 * @phba: pointer to lpfc hba data structure. 9018 * 9019 * This routine is invoked to allocate and set up a pool of completion queue 9020 * events. The body of the completion queue event is a completion queue entry 9021 * CQE. For now, this pool is used for the interrupt service routine to queue 9022 * the following HBA completion queue events for the worker thread to process: 9023 * - Mailbox asynchronous events 9024 * - Receive queue completion unsolicited events 9025 * Later, this can be used for all the slow-path events. 9026 * 9027 * Return codes 9028 * 0 - successful 9029 * -ENOMEM - No available memory 9030 **/ 9031 static int 9032 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 9033 { 9034 struct lpfc_cq_event *cq_event; 9035 int i; 9036 9037 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 9038 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 9039 if (!cq_event) 9040 goto out_pool_create_fail; 9041 list_add_tail(&cq_event->list, 9042 &phba->sli4_hba.sp_cqe_event_pool); 9043 } 9044 return 0; 9045 9046 out_pool_create_fail: 9047 lpfc_sli4_cq_event_pool_destroy(phba); 9048 return -ENOMEM; 9049 } 9050 9051 /** 9052 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 9053 * @phba: pointer to lpfc hba data structure. 9054 * 9055 * This routine is invoked to free the pool of completion queue events at 9056 * driver unload time. Note that, it is the responsibility of the driver 9057 * cleanup routine to free all the outstanding completion-queue events 9058 * allocated from this pool back into the pool before invoking this routine 9059 * to destroy the pool. 9060 **/ 9061 static void 9062 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 9063 { 9064 struct lpfc_cq_event *cq_event, *next_cq_event; 9065 9066 list_for_each_entry_safe(cq_event, next_cq_event, 9067 &phba->sli4_hba.sp_cqe_event_pool, list) { 9068 list_del(&cq_event->list); 9069 kfree(cq_event); 9070 } 9071 } 9072 9073 /** 9074 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 9075 * @phba: pointer to lpfc hba data structure. 9076 * 9077 * This routine is the lock free version of the API invoked to allocate a 9078 * completion-queue event from the free pool. 9079 * 9080 * Return: Pointer to the newly allocated completion-queue event if successful 9081 * NULL otherwise. 9082 **/ 9083 struct lpfc_cq_event * 9084 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9085 { 9086 struct lpfc_cq_event *cq_event = NULL; 9087 9088 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 9089 struct lpfc_cq_event, list); 9090 return cq_event; 9091 } 9092 9093 /** 9094 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 9095 * @phba: pointer to lpfc hba data structure. 9096 * 9097 * This routine is the lock version of the API invoked to allocate a 9098 * completion-queue event from the free pool. 9099 * 9100 * Return: Pointer to the newly allocated completion-queue event if successful 9101 * NULL otherwise. 9102 **/ 9103 struct lpfc_cq_event * 9104 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9105 { 9106 struct lpfc_cq_event *cq_event; 9107 unsigned long iflags; 9108 9109 spin_lock_irqsave(&phba->hbalock, iflags); 9110 cq_event = __lpfc_sli4_cq_event_alloc(phba); 9111 spin_unlock_irqrestore(&phba->hbalock, iflags); 9112 return cq_event; 9113 } 9114 9115 /** 9116 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9117 * @phba: pointer to lpfc hba data structure. 9118 * @cq_event: pointer to the completion queue event to be freed. 9119 * 9120 * This routine is the lock free version of the API invoked to release a 9121 * completion-queue event back into the free pool. 9122 **/ 9123 void 9124 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9125 struct lpfc_cq_event *cq_event) 9126 { 9127 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 9128 } 9129 9130 /** 9131 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9132 * @phba: pointer to lpfc hba data structure. 9133 * @cq_event: pointer to the completion queue event to be freed. 9134 * 9135 * This routine is the lock version of the API invoked to release a 9136 * completion-queue event back into the free pool. 9137 **/ 9138 void 9139 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9140 struct lpfc_cq_event *cq_event) 9141 { 9142 unsigned long iflags; 9143 spin_lock_irqsave(&phba->hbalock, iflags); 9144 __lpfc_sli4_cq_event_release(phba, cq_event); 9145 spin_unlock_irqrestore(&phba->hbalock, iflags); 9146 } 9147 9148 /** 9149 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 9150 * @phba: pointer to lpfc hba data structure. 9151 * 9152 * This routine is to free all the pending completion-queue events to the 9153 * back into the free pool for device reset. 9154 **/ 9155 static void 9156 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 9157 { 9158 LIST_HEAD(cqelist); 9159 struct lpfc_cq_event *cqe; 9160 unsigned long iflags; 9161 9162 /* Retrieve all the pending WCQEs from pending WCQE lists */ 9163 spin_lock_irqsave(&phba->hbalock, iflags); 9164 /* Pending FCP XRI abort events */ 9165 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 9166 &cqelist); 9167 /* Pending ELS XRI abort events */ 9168 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 9169 &cqelist); 9170 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 9171 /* Pending NVME XRI abort events */ 9172 list_splice_init(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue, 9173 &cqelist); 9174 } 9175 /* Pending asynnc events */ 9176 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 9177 &cqelist); 9178 spin_unlock_irqrestore(&phba->hbalock, iflags); 9179 9180 while (!list_empty(&cqelist)) { 9181 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 9182 lpfc_sli4_cq_event_release(phba, cqe); 9183 } 9184 } 9185 9186 /** 9187 * lpfc_pci_function_reset - Reset pci function. 9188 * @phba: pointer to lpfc hba data structure. 9189 * 9190 * This routine is invoked to request a PCI function reset. It will destroys 9191 * all resources assigned to the PCI function which originates this request. 9192 * 9193 * Return codes 9194 * 0 - successful 9195 * -ENOMEM - No available memory 9196 * -EIO - The mailbox failed to complete successfully. 9197 **/ 9198 int 9199 lpfc_pci_function_reset(struct lpfc_hba *phba) 9200 { 9201 LPFC_MBOXQ_t *mboxq; 9202 uint32_t rc = 0, if_type; 9203 uint32_t shdr_status, shdr_add_status; 9204 uint32_t rdy_chk; 9205 uint32_t port_reset = 0; 9206 union lpfc_sli4_cfg_shdr *shdr; 9207 struct lpfc_register reg_data; 9208 uint16_t devid; 9209 9210 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9211 switch (if_type) { 9212 case LPFC_SLI_INTF_IF_TYPE_0: 9213 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 9214 GFP_KERNEL); 9215 if (!mboxq) { 9216 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9217 "0494 Unable to allocate memory for " 9218 "issuing SLI_FUNCTION_RESET mailbox " 9219 "command\n"); 9220 return -ENOMEM; 9221 } 9222 9223 /* Setup PCI function reset mailbox-ioctl command */ 9224 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 9225 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 9226 LPFC_SLI4_MBX_EMBED); 9227 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9228 shdr = (union lpfc_sli4_cfg_shdr *) 9229 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 9230 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 9231 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 9232 &shdr->response); 9233 if (rc != MBX_TIMEOUT) 9234 mempool_free(mboxq, phba->mbox_mem_pool); 9235 if (shdr_status || shdr_add_status || rc) { 9236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9237 "0495 SLI_FUNCTION_RESET mailbox " 9238 "failed with status x%x add_status x%x," 9239 " mbx status x%x\n", 9240 shdr_status, shdr_add_status, rc); 9241 rc = -ENXIO; 9242 } 9243 break; 9244 case LPFC_SLI_INTF_IF_TYPE_2: 9245 wait: 9246 /* 9247 * Poll the Port Status Register and wait for RDY for 9248 * up to 30 seconds. If the port doesn't respond, treat 9249 * it as an error. 9250 */ 9251 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) { 9252 if (lpfc_readl(phba->sli4_hba.u.if_type2. 9253 STATUSregaddr, ®_data.word0)) { 9254 rc = -ENODEV; 9255 goto out; 9256 } 9257 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 9258 break; 9259 msleep(20); 9260 } 9261 9262 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) { 9263 phba->work_status[0] = readl( 9264 phba->sli4_hba.u.if_type2.ERR1regaddr); 9265 phba->work_status[1] = readl( 9266 phba->sli4_hba.u.if_type2.ERR2regaddr); 9267 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9268 "2890 Port not ready, port status reg " 9269 "0x%x error 1=0x%x, error 2=0x%x\n", 9270 reg_data.word0, 9271 phba->work_status[0], 9272 phba->work_status[1]); 9273 rc = -ENODEV; 9274 goto out; 9275 } 9276 9277 if (!port_reset) { 9278 /* 9279 * Reset the port now 9280 */ 9281 reg_data.word0 = 0; 9282 bf_set(lpfc_sliport_ctrl_end, ®_data, 9283 LPFC_SLIPORT_LITTLE_ENDIAN); 9284 bf_set(lpfc_sliport_ctrl_ip, ®_data, 9285 LPFC_SLIPORT_INIT_PORT); 9286 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 9287 CTRLregaddr); 9288 /* flush */ 9289 pci_read_config_word(phba->pcidev, 9290 PCI_DEVICE_ID, &devid); 9291 9292 port_reset = 1; 9293 msleep(20); 9294 goto wait; 9295 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) { 9296 rc = -ENODEV; 9297 goto out; 9298 } 9299 break; 9300 9301 case LPFC_SLI_INTF_IF_TYPE_1: 9302 default: 9303 break; 9304 } 9305 9306 out: 9307 /* Catch the not-ready port failure after a port reset. */ 9308 if (rc) { 9309 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9310 "3317 HBA not functional: IP Reset Failed " 9311 "try: echo fw_reset > board_mode\n"); 9312 rc = -ENODEV; 9313 } 9314 9315 return rc; 9316 } 9317 9318 /** 9319 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 9320 * @phba: pointer to lpfc hba data structure. 9321 * 9322 * This routine is invoked to set up the PCI device memory space for device 9323 * with SLI-4 interface spec. 9324 * 9325 * Return codes 9326 * 0 - successful 9327 * other values - error 9328 **/ 9329 static int 9330 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 9331 { 9332 struct pci_dev *pdev; 9333 unsigned long bar0map_len, bar1map_len, bar2map_len; 9334 int error = -ENODEV; 9335 uint32_t if_type; 9336 9337 /* Obtain PCI device reference */ 9338 if (!phba->pcidev) 9339 return error; 9340 else 9341 pdev = phba->pcidev; 9342 9343 /* Set the device DMA mask size */ 9344 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 9345 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 9346 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 9347 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 9348 return error; 9349 } 9350 } 9351 9352 /* 9353 * The BARs and register set definitions and offset locations are 9354 * dependent on the if_type. 9355 */ 9356 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 9357 &phba->sli4_hba.sli_intf.word0)) { 9358 return error; 9359 } 9360 9361 /* There is no SLI3 failback for SLI4 devices. */ 9362 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 9363 LPFC_SLI_INTF_VALID) { 9364 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9365 "2894 SLI_INTF reg contents invalid " 9366 "sli_intf reg 0x%x\n", 9367 phba->sli4_hba.sli_intf.word0); 9368 return error; 9369 } 9370 9371 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9372 /* 9373 * Get the bus address of SLI4 device Bar regions and the 9374 * number of bytes required by each mapping. The mapping of the 9375 * particular PCI BARs regions is dependent on the type of 9376 * SLI4 device. 9377 */ 9378 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) { 9379 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0); 9380 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0); 9381 9382 /* 9383 * Map SLI4 PCI Config Space Register base to a kernel virtual 9384 * addr 9385 */ 9386 phba->sli4_hba.conf_regs_memmap_p = 9387 ioremap(phba->pci_bar0_map, bar0map_len); 9388 if (!phba->sli4_hba.conf_regs_memmap_p) { 9389 dev_printk(KERN_ERR, &pdev->dev, 9390 "ioremap failed for SLI4 PCI config " 9391 "registers.\n"); 9392 goto out; 9393 } 9394 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p; 9395 /* Set up BAR0 PCI config space register memory map */ 9396 lpfc_sli4_bar0_register_memmap(phba, if_type); 9397 } else { 9398 phba->pci_bar0_map = pci_resource_start(pdev, 1); 9399 bar0map_len = pci_resource_len(pdev, 1); 9400 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 9401 dev_printk(KERN_ERR, &pdev->dev, 9402 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 9403 goto out; 9404 } 9405 phba->sli4_hba.conf_regs_memmap_p = 9406 ioremap(phba->pci_bar0_map, bar0map_len); 9407 if (!phba->sli4_hba.conf_regs_memmap_p) { 9408 dev_printk(KERN_ERR, &pdev->dev, 9409 "ioremap failed for SLI4 PCI config " 9410 "registers.\n"); 9411 goto out; 9412 } 9413 lpfc_sli4_bar0_register_memmap(phba, if_type); 9414 } 9415 9416 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 9417 (pci_resource_start(pdev, PCI_64BIT_BAR2))) { 9418 /* 9419 * Map SLI4 if type 0 HBA Control Register base to a kernel 9420 * virtual address and setup the registers. 9421 */ 9422 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2); 9423 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); 9424 phba->sli4_hba.ctrl_regs_memmap_p = 9425 ioremap(phba->pci_bar1_map, bar1map_len); 9426 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 9427 dev_printk(KERN_ERR, &pdev->dev, 9428 "ioremap failed for SLI4 HBA control registers.\n"); 9429 goto out_iounmap_conf; 9430 } 9431 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p; 9432 lpfc_sli4_bar1_register_memmap(phba); 9433 } 9434 9435 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 9436 (pci_resource_start(pdev, PCI_64BIT_BAR4))) { 9437 /* 9438 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 9439 * virtual address and setup the registers. 9440 */ 9441 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4); 9442 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); 9443 phba->sli4_hba.drbl_regs_memmap_p = 9444 ioremap(phba->pci_bar2_map, bar2map_len); 9445 if (!phba->sli4_hba.drbl_regs_memmap_p) { 9446 dev_printk(KERN_ERR, &pdev->dev, 9447 "ioremap failed for SLI4 HBA doorbell registers.\n"); 9448 goto out_iounmap_ctrl; 9449 } 9450 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p; 9451 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 9452 if (error) 9453 goto out_iounmap_all; 9454 } 9455 9456 return 0; 9457 9458 out_iounmap_all: 9459 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9460 out_iounmap_ctrl: 9461 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9462 out_iounmap_conf: 9463 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9464 out: 9465 return error; 9466 } 9467 9468 /** 9469 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 9470 * @phba: pointer to lpfc hba data structure. 9471 * 9472 * This routine is invoked to unset the PCI device memory space for device 9473 * with SLI-4 interface spec. 9474 **/ 9475 static void 9476 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 9477 { 9478 uint32_t if_type; 9479 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9480 9481 switch (if_type) { 9482 case LPFC_SLI_INTF_IF_TYPE_0: 9483 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9484 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9485 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9486 break; 9487 case LPFC_SLI_INTF_IF_TYPE_2: 9488 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9489 break; 9490 case LPFC_SLI_INTF_IF_TYPE_1: 9491 default: 9492 dev_printk(KERN_ERR, &phba->pcidev->dev, 9493 "FATAL - unsupported SLI4 interface type - %d\n", 9494 if_type); 9495 break; 9496 } 9497 } 9498 9499 /** 9500 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 9501 * @phba: pointer to lpfc hba data structure. 9502 * 9503 * This routine is invoked to enable the MSI-X interrupt vectors to device 9504 * with SLI-3 interface specs. 9505 * 9506 * Return codes 9507 * 0 - successful 9508 * other values - error 9509 **/ 9510 static int 9511 lpfc_sli_enable_msix(struct lpfc_hba *phba) 9512 { 9513 int rc; 9514 LPFC_MBOXQ_t *pmb; 9515 9516 /* Set up MSI-X multi-message vectors */ 9517 rc = pci_alloc_irq_vectors(phba->pcidev, 9518 LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX); 9519 if (rc < 0) { 9520 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9521 "0420 PCI enable MSI-X failed (%d)\n", rc); 9522 goto vec_fail_out; 9523 } 9524 9525 /* 9526 * Assign MSI-X vectors to interrupt handlers 9527 */ 9528 9529 /* vector-0 is associated to slow-path handler */ 9530 rc = request_irq(pci_irq_vector(phba->pcidev, 0), 9531 &lpfc_sli_sp_intr_handler, 0, 9532 LPFC_SP_DRIVER_HANDLER_NAME, phba); 9533 if (rc) { 9534 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9535 "0421 MSI-X slow-path request_irq failed " 9536 "(%d)\n", rc); 9537 goto msi_fail_out; 9538 } 9539 9540 /* vector-1 is associated to fast-path handler */ 9541 rc = request_irq(pci_irq_vector(phba->pcidev, 1), 9542 &lpfc_sli_fp_intr_handler, 0, 9543 LPFC_FP_DRIVER_HANDLER_NAME, phba); 9544 9545 if (rc) { 9546 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9547 "0429 MSI-X fast-path request_irq failed " 9548 "(%d)\n", rc); 9549 goto irq_fail_out; 9550 } 9551 9552 /* 9553 * Configure HBA MSI-X attention conditions to messages 9554 */ 9555 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 9556 9557 if (!pmb) { 9558 rc = -ENOMEM; 9559 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9560 "0474 Unable to allocate memory for issuing " 9561 "MBOX_CONFIG_MSI command\n"); 9562 goto mem_fail_out; 9563 } 9564 rc = lpfc_config_msi(phba, pmb); 9565 if (rc) 9566 goto mbx_fail_out; 9567 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 9568 if (rc != MBX_SUCCESS) { 9569 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 9570 "0351 Config MSI mailbox command failed, " 9571 "mbxCmd x%x, mbxStatus x%x\n", 9572 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 9573 goto mbx_fail_out; 9574 } 9575 9576 /* Free memory allocated for mailbox command */ 9577 mempool_free(pmb, phba->mbox_mem_pool); 9578 return rc; 9579 9580 mbx_fail_out: 9581 /* Free memory allocated for mailbox command */ 9582 mempool_free(pmb, phba->mbox_mem_pool); 9583 9584 mem_fail_out: 9585 /* free the irq already requested */ 9586 free_irq(pci_irq_vector(phba->pcidev, 1), phba); 9587 9588 irq_fail_out: 9589 /* free the irq already requested */ 9590 free_irq(pci_irq_vector(phba->pcidev, 0), phba); 9591 9592 msi_fail_out: 9593 /* Unconfigure MSI-X capability structure */ 9594 pci_free_irq_vectors(phba->pcidev); 9595 9596 vec_fail_out: 9597 return rc; 9598 } 9599 9600 /** 9601 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 9602 * @phba: pointer to lpfc hba data structure. 9603 * 9604 * This routine is invoked to enable the MSI interrupt mode to device with 9605 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 9606 * enable the MSI vector. The device driver is responsible for calling the 9607 * request_irq() to register MSI vector with a interrupt the handler, which 9608 * is done in this function. 9609 * 9610 * Return codes 9611 * 0 - successful 9612 * other values - error 9613 */ 9614 static int 9615 lpfc_sli_enable_msi(struct lpfc_hba *phba) 9616 { 9617 int rc; 9618 9619 rc = pci_enable_msi(phba->pcidev); 9620 if (!rc) 9621 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9622 "0462 PCI enable MSI mode success.\n"); 9623 else { 9624 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9625 "0471 PCI enable MSI mode failed (%d)\n", rc); 9626 return rc; 9627 } 9628 9629 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9630 0, LPFC_DRIVER_NAME, phba); 9631 if (rc) { 9632 pci_disable_msi(phba->pcidev); 9633 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9634 "0478 MSI request_irq failed (%d)\n", rc); 9635 } 9636 return rc; 9637 } 9638 9639 /** 9640 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 9641 * @phba: pointer to lpfc hba data structure. 9642 * 9643 * This routine is invoked to enable device interrupt and associate driver's 9644 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 9645 * spec. Depends on the interrupt mode configured to the driver, the driver 9646 * will try to fallback from the configured interrupt mode to an interrupt 9647 * mode which is supported by the platform, kernel, and device in the order 9648 * of: 9649 * MSI-X -> MSI -> IRQ. 9650 * 9651 * Return codes 9652 * 0 - successful 9653 * other values - error 9654 **/ 9655 static uint32_t 9656 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9657 { 9658 uint32_t intr_mode = LPFC_INTR_ERROR; 9659 int retval; 9660 9661 if (cfg_mode == 2) { 9662 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 9663 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 9664 if (!retval) { 9665 /* Now, try to enable MSI-X interrupt mode */ 9666 retval = lpfc_sli_enable_msix(phba); 9667 if (!retval) { 9668 /* Indicate initialization to MSI-X mode */ 9669 phba->intr_type = MSIX; 9670 intr_mode = 2; 9671 } 9672 } 9673 } 9674 9675 /* Fallback to MSI if MSI-X initialization failed */ 9676 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9677 retval = lpfc_sli_enable_msi(phba); 9678 if (!retval) { 9679 /* Indicate initialization to MSI mode */ 9680 phba->intr_type = MSI; 9681 intr_mode = 1; 9682 } 9683 } 9684 9685 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9686 if (phba->intr_type == NONE) { 9687 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9688 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9689 if (!retval) { 9690 /* Indicate initialization to INTx mode */ 9691 phba->intr_type = INTx; 9692 intr_mode = 0; 9693 } 9694 } 9695 return intr_mode; 9696 } 9697 9698 /** 9699 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 9700 * @phba: pointer to lpfc hba data structure. 9701 * 9702 * This routine is invoked to disable device interrupt and disassociate the 9703 * driver's interrupt handler(s) from interrupt vector(s) to device with 9704 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 9705 * release the interrupt vector(s) for the message signaled interrupt. 9706 **/ 9707 static void 9708 lpfc_sli_disable_intr(struct lpfc_hba *phba) 9709 { 9710 int nr_irqs, i; 9711 9712 if (phba->intr_type == MSIX) 9713 nr_irqs = LPFC_MSIX_VECTORS; 9714 else 9715 nr_irqs = 1; 9716 9717 for (i = 0; i < nr_irqs; i++) 9718 free_irq(pci_irq_vector(phba->pcidev, i), phba); 9719 pci_free_irq_vectors(phba->pcidev); 9720 9721 /* Reset interrupt management states */ 9722 phba->intr_type = NONE; 9723 phba->sli.slistat.sli_intr = 0; 9724 } 9725 9726 /** 9727 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings 9728 * @phba: pointer to lpfc hba data structure. 9729 * @vectors: number of msix vectors allocated. 9730 * 9731 * The routine will figure out the CPU affinity assignment for every 9732 * MSI-X vector allocated for the HBA. The hba_eq_hdl will be updated 9733 * with a pointer to the CPU mask that defines ALL the CPUs this vector 9734 * can be associated with. If the vector can be unquely associated with 9735 * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu. 9736 * In addition, the CPU to IO channel mapping will be calculated 9737 * and the phba->sli4_hba.cpu_map array will reflect this. 9738 */ 9739 static void 9740 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors) 9741 { 9742 struct lpfc_vector_map_info *cpup; 9743 int index = 0; 9744 int vec = 0; 9745 int cpu; 9746 #ifdef CONFIG_X86 9747 struct cpuinfo_x86 *cpuinfo; 9748 #endif 9749 9750 /* Init cpu_map array */ 9751 memset(phba->sli4_hba.cpu_map, 0xff, 9752 (sizeof(struct lpfc_vector_map_info) * 9753 phba->sli4_hba.num_present_cpu)); 9754 9755 /* Update CPU map with physical id and core id of each CPU */ 9756 cpup = phba->sli4_hba.cpu_map; 9757 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 9758 #ifdef CONFIG_X86 9759 cpuinfo = &cpu_data(cpu); 9760 cpup->phys_id = cpuinfo->phys_proc_id; 9761 cpup->core_id = cpuinfo->cpu_core_id; 9762 #else 9763 /* No distinction between CPUs for other platforms */ 9764 cpup->phys_id = 0; 9765 cpup->core_id = 0; 9766 #endif 9767 cpup->channel_id = index; /* For now round robin */ 9768 cpup->irq = pci_irq_vector(phba->pcidev, vec); 9769 vec++; 9770 if (vec >= vectors) 9771 vec = 0; 9772 index++; 9773 if (index >= phba->cfg_fcp_io_channel) 9774 index = 0; 9775 cpup++; 9776 } 9777 } 9778 9779 9780 /** 9781 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 9782 * @phba: pointer to lpfc hba data structure. 9783 * 9784 * This routine is invoked to enable the MSI-X interrupt vectors to device 9785 * with SLI-4 interface spec. 9786 * 9787 * Return codes 9788 * 0 - successful 9789 * other values - error 9790 **/ 9791 static int 9792 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 9793 { 9794 int vectors, rc, index; 9795 char *name; 9796 9797 /* Set up MSI-X multi-message vectors */ 9798 vectors = phba->io_channel_irqs; 9799 if (phba->cfg_fof) 9800 vectors++; 9801 9802 rc = pci_alloc_irq_vectors(phba->pcidev, 9803 (phba->nvmet_support) ? 1 : 2, 9804 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); 9805 if (rc < 0) { 9806 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9807 "0484 PCI enable MSI-X failed (%d)\n", rc); 9808 goto vec_fail_out; 9809 } 9810 vectors = rc; 9811 9812 /* Assign MSI-X vectors to interrupt handlers */ 9813 for (index = 0; index < vectors; index++) { 9814 name = phba->sli4_hba.hba_eq_hdl[index].handler_name; 9815 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ); 9816 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ, 9817 LPFC_DRIVER_HANDLER_NAME"%d", index); 9818 9819 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9820 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9821 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1); 9822 if (phba->cfg_fof && (index == (vectors - 1))) 9823 rc = request_irq(pci_irq_vector(phba->pcidev, index), 9824 &lpfc_sli4_fof_intr_handler, 0, 9825 name, 9826 &phba->sli4_hba.hba_eq_hdl[index]); 9827 else 9828 rc = request_irq(pci_irq_vector(phba->pcidev, index), 9829 &lpfc_sli4_hba_intr_handler, 0, 9830 name, 9831 &phba->sli4_hba.hba_eq_hdl[index]); 9832 if (rc) { 9833 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9834 "0486 MSI-X fast-path (%d) " 9835 "request_irq failed (%d)\n", index, rc); 9836 goto cfg_fail_out; 9837 } 9838 } 9839 9840 if (phba->cfg_fof) 9841 vectors--; 9842 9843 if (vectors != phba->io_channel_irqs) { 9844 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9845 "3238 Reducing IO channels to match number of " 9846 "MSI-X vectors, requested %d got %d\n", 9847 phba->io_channel_irqs, vectors); 9848 if (phba->cfg_fcp_io_channel > vectors) 9849 phba->cfg_fcp_io_channel = vectors; 9850 if (phba->cfg_nvme_io_channel > vectors) 9851 phba->cfg_nvme_io_channel = vectors; 9852 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) 9853 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 9854 else 9855 phba->io_channel_irqs = phba->cfg_nvme_io_channel; 9856 } 9857 lpfc_cpu_affinity_check(phba, vectors); 9858 9859 return rc; 9860 9861 cfg_fail_out: 9862 /* free the irq already requested */ 9863 for (--index; index >= 0; index--) 9864 free_irq(pci_irq_vector(phba->pcidev, index), 9865 &phba->sli4_hba.hba_eq_hdl[index]); 9866 9867 /* Unconfigure MSI-X capability structure */ 9868 pci_free_irq_vectors(phba->pcidev); 9869 9870 vec_fail_out: 9871 return rc; 9872 } 9873 9874 /** 9875 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 9876 * @phba: pointer to lpfc hba data structure. 9877 * 9878 * This routine is invoked to enable the MSI interrupt mode to device with 9879 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 9880 * to enable the MSI vector. The device driver is responsible for calling 9881 * the request_irq() to register MSI vector with a interrupt the handler, 9882 * which is done in this function. 9883 * 9884 * Return codes 9885 * 0 - successful 9886 * other values - error 9887 **/ 9888 static int 9889 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 9890 { 9891 int rc, index; 9892 9893 rc = pci_enable_msi(phba->pcidev); 9894 if (!rc) 9895 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9896 "0487 PCI enable MSI mode success.\n"); 9897 else { 9898 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9899 "0488 PCI enable MSI mode failed (%d)\n", rc); 9900 return rc; 9901 } 9902 9903 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9904 0, LPFC_DRIVER_NAME, phba); 9905 if (rc) { 9906 pci_disable_msi(phba->pcidev); 9907 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9908 "0490 MSI request_irq failed (%d)\n", rc); 9909 return rc; 9910 } 9911 9912 for (index = 0; index < phba->io_channel_irqs; index++) { 9913 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9914 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9915 } 9916 9917 if (phba->cfg_fof) { 9918 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9919 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9920 } 9921 return 0; 9922 } 9923 9924 /** 9925 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 9926 * @phba: pointer to lpfc hba data structure. 9927 * 9928 * This routine is invoked to enable device interrupt and associate driver's 9929 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 9930 * interface spec. Depends on the interrupt mode configured to the driver, 9931 * the driver will try to fallback from the configured interrupt mode to an 9932 * interrupt mode which is supported by the platform, kernel, and device in 9933 * the order of: 9934 * MSI-X -> MSI -> IRQ. 9935 * 9936 * Return codes 9937 * 0 - successful 9938 * other values - error 9939 **/ 9940 static uint32_t 9941 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9942 { 9943 uint32_t intr_mode = LPFC_INTR_ERROR; 9944 int retval, idx; 9945 9946 if (cfg_mode == 2) { 9947 /* Preparation before conf_msi mbox cmd */ 9948 retval = 0; 9949 if (!retval) { 9950 /* Now, try to enable MSI-X interrupt mode */ 9951 retval = lpfc_sli4_enable_msix(phba); 9952 if (!retval) { 9953 /* Indicate initialization to MSI-X mode */ 9954 phba->intr_type = MSIX; 9955 intr_mode = 2; 9956 } 9957 } 9958 } 9959 9960 /* Fallback to MSI if MSI-X initialization failed */ 9961 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9962 retval = lpfc_sli4_enable_msi(phba); 9963 if (!retval) { 9964 /* Indicate initialization to MSI mode */ 9965 phba->intr_type = MSI; 9966 intr_mode = 1; 9967 } 9968 } 9969 9970 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9971 if (phba->intr_type == NONE) { 9972 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9973 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9974 if (!retval) { 9975 struct lpfc_hba_eq_hdl *eqhdl; 9976 9977 /* Indicate initialization to INTx mode */ 9978 phba->intr_type = INTx; 9979 intr_mode = 0; 9980 9981 for (idx = 0; idx < phba->io_channel_irqs; idx++) { 9982 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 9983 eqhdl->idx = idx; 9984 eqhdl->phba = phba; 9985 atomic_set(&eqhdl->hba_eq_in_use, 1); 9986 } 9987 if (phba->cfg_fof) { 9988 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 9989 eqhdl->idx = idx; 9990 eqhdl->phba = phba; 9991 atomic_set(&eqhdl->hba_eq_in_use, 1); 9992 } 9993 } 9994 } 9995 return intr_mode; 9996 } 9997 9998 /** 9999 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 10000 * @phba: pointer to lpfc hba data structure. 10001 * 10002 * This routine is invoked to disable device interrupt and disassociate 10003 * the driver's interrupt handler(s) from interrupt vector(s) to device 10004 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 10005 * will release the interrupt vector(s) for the message signaled interrupt. 10006 **/ 10007 static void 10008 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 10009 { 10010 /* Disable the currently initialized interrupt mode */ 10011 if (phba->intr_type == MSIX) { 10012 int index; 10013 10014 /* Free up MSI-X multi-message vectors */ 10015 for (index = 0; index < phba->io_channel_irqs; index++) 10016 free_irq(pci_irq_vector(phba->pcidev, index), 10017 &phba->sli4_hba.hba_eq_hdl[index]); 10018 10019 if (phba->cfg_fof) 10020 free_irq(pci_irq_vector(phba->pcidev, index), 10021 &phba->sli4_hba.hba_eq_hdl[index]); 10022 } else { 10023 free_irq(phba->pcidev->irq, phba); 10024 } 10025 10026 pci_free_irq_vectors(phba->pcidev); 10027 10028 /* Reset interrupt management states */ 10029 phba->intr_type = NONE; 10030 phba->sli.slistat.sli_intr = 0; 10031 } 10032 10033 /** 10034 * lpfc_unset_hba - Unset SLI3 hba device initialization 10035 * @phba: pointer to lpfc hba data structure. 10036 * 10037 * This routine is invoked to unset the HBA device initialization steps to 10038 * a device with SLI-3 interface spec. 10039 **/ 10040 static void 10041 lpfc_unset_hba(struct lpfc_hba *phba) 10042 { 10043 struct lpfc_vport *vport = phba->pport; 10044 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 10045 10046 spin_lock_irq(shost->host_lock); 10047 vport->load_flag |= FC_UNLOADING; 10048 spin_unlock_irq(shost->host_lock); 10049 10050 kfree(phba->vpi_bmask); 10051 kfree(phba->vpi_ids); 10052 10053 lpfc_stop_hba_timers(phba); 10054 10055 phba->pport->work_port_events = 0; 10056 10057 lpfc_sli_hba_down(phba); 10058 10059 lpfc_sli_brdrestart(phba); 10060 10061 lpfc_sli_disable_intr(phba); 10062 10063 return; 10064 } 10065 10066 /** 10067 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 10068 * @phba: Pointer to HBA context object. 10069 * 10070 * This function is called in the SLI4 code path to wait for completion 10071 * of device's XRIs exchange busy. It will check the XRI exchange busy 10072 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 10073 * that, it will check the XRI exchange busy on outstanding FCP and ELS 10074 * I/Os every 30 seconds, log error message, and wait forever. Only when 10075 * all XRI exchange busy complete, the driver unload shall proceed with 10076 * invoking the function reset ioctl mailbox command to the CNA and the 10077 * the rest of the driver unload resource release. 10078 **/ 10079 static void 10080 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 10081 { 10082 int wait_time = 0; 10083 int nvme_xri_cmpl = 1; 10084 int nvmet_xri_cmpl = 1; 10085 int fcp_xri_cmpl = 1; 10086 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 10087 10088 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 10089 fcp_xri_cmpl = 10090 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 10091 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 10092 nvme_xri_cmpl = 10093 list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 10094 nvmet_xri_cmpl = 10095 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 10096 } 10097 10098 while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl || 10099 !nvmet_xri_cmpl) { 10100 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 10101 if (!nvme_xri_cmpl) 10102 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10103 "6100 NVME XRI exchange busy " 10104 "wait time: %d seconds.\n", 10105 wait_time/1000); 10106 if (!fcp_xri_cmpl) 10107 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10108 "2877 FCP XRI exchange busy " 10109 "wait time: %d seconds.\n", 10110 wait_time/1000); 10111 if (!els_xri_cmpl) 10112 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10113 "2878 ELS XRI exchange busy " 10114 "wait time: %d seconds.\n", 10115 wait_time/1000); 10116 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 10117 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 10118 } else { 10119 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 10120 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 10121 } 10122 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 10123 nvme_xri_cmpl = list_empty( 10124 &phba->sli4_hba.lpfc_abts_nvme_buf_list); 10125 nvmet_xri_cmpl = list_empty( 10126 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 10127 } 10128 10129 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 10130 fcp_xri_cmpl = list_empty( 10131 &phba->sli4_hba.lpfc_abts_scsi_buf_list); 10132 10133 els_xri_cmpl = 10134 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 10135 10136 } 10137 } 10138 10139 /** 10140 * lpfc_sli4_hba_unset - Unset the fcoe hba 10141 * @phba: Pointer to HBA context object. 10142 * 10143 * This function is called in the SLI4 code path to reset the HBA's FCoE 10144 * function. The caller is not required to hold any lock. This routine 10145 * issues PCI function reset mailbox command to reset the FCoE function. 10146 * At the end of the function, it calls lpfc_hba_down_post function to 10147 * free any pending commands. 10148 **/ 10149 static void 10150 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 10151 { 10152 int wait_cnt = 0; 10153 LPFC_MBOXQ_t *mboxq; 10154 struct pci_dev *pdev = phba->pcidev; 10155 10156 lpfc_stop_hba_timers(phba); 10157 phba->sli4_hba.intr_enable = 0; 10158 10159 /* 10160 * Gracefully wait out the potential current outstanding asynchronous 10161 * mailbox command. 10162 */ 10163 10164 /* First, block any pending async mailbox command from posted */ 10165 spin_lock_irq(&phba->hbalock); 10166 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 10167 spin_unlock_irq(&phba->hbalock); 10168 /* Now, trying to wait it out if we can */ 10169 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10170 msleep(10); 10171 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 10172 break; 10173 } 10174 /* Forcefully release the outstanding mailbox command if timed out */ 10175 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10176 spin_lock_irq(&phba->hbalock); 10177 mboxq = phba->sli.mbox_active; 10178 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 10179 __lpfc_mbox_cmpl_put(phba, mboxq); 10180 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 10181 phba->sli.mbox_active = NULL; 10182 spin_unlock_irq(&phba->hbalock); 10183 } 10184 10185 /* Abort all iocbs associated with the hba */ 10186 lpfc_sli_hba_iocb_abort(phba); 10187 10188 /* Wait for completion of device XRI exchange busy */ 10189 lpfc_sli4_xri_exchange_busy_wait(phba); 10190 10191 /* Disable PCI subsystem interrupt */ 10192 lpfc_sli4_disable_intr(phba); 10193 10194 /* Disable SR-IOV if enabled */ 10195 if (phba->cfg_sriov_nr_virtfn) 10196 pci_disable_sriov(pdev); 10197 10198 /* Stop kthread signal shall trigger work_done one more time */ 10199 kthread_stop(phba->worker_thread); 10200 10201 /* Unset the queues shared with the hardware then release all 10202 * allocated resources. 10203 */ 10204 lpfc_sli4_queue_unset(phba); 10205 lpfc_sli4_queue_destroy(phba); 10206 10207 /* Reset SLI4 HBA FCoE function */ 10208 lpfc_pci_function_reset(phba); 10209 10210 /* Stop the SLI4 device port */ 10211 phba->pport->work_port_events = 0; 10212 } 10213 10214 /** 10215 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 10216 * @phba: Pointer to HBA context object. 10217 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10218 * 10219 * This function is called in the SLI4 code path to read the port's 10220 * sli4 capabilities. 10221 * 10222 * This function may be be called from any context that can block-wait 10223 * for the completion. The expectation is that this routine is called 10224 * typically from probe_one or from the online routine. 10225 **/ 10226 int 10227 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10228 { 10229 int rc; 10230 struct lpfc_mqe *mqe; 10231 struct lpfc_pc_sli4_params *sli4_params; 10232 uint32_t mbox_tmo; 10233 10234 rc = 0; 10235 mqe = &mboxq->u.mqe; 10236 10237 /* Read the port's SLI4 Parameters port capabilities */ 10238 lpfc_pc_sli4_params(mboxq); 10239 if (!phba->sli4_hba.intr_enable) 10240 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10241 else { 10242 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10243 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10244 } 10245 10246 if (unlikely(rc)) 10247 return 1; 10248 10249 sli4_params = &phba->sli4_hba.pc_sli4_params; 10250 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 10251 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 10252 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 10253 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 10254 &mqe->un.sli4_params); 10255 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 10256 &mqe->un.sli4_params); 10257 sli4_params->proto_types = mqe->un.sli4_params.word3; 10258 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 10259 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 10260 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 10261 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 10262 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 10263 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 10264 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 10265 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 10266 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 10267 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 10268 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 10269 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 10270 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 10271 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 10272 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 10273 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 10274 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 10275 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 10276 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 10277 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 10278 10279 /* Make sure that sge_supp_len can be handled by the driver */ 10280 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10281 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10282 10283 return rc; 10284 } 10285 10286 /** 10287 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 10288 * @phba: Pointer to HBA context object. 10289 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10290 * 10291 * This function is called in the SLI4 code path to read the port's 10292 * sli4 capabilities. 10293 * 10294 * This function may be be called from any context that can block-wait 10295 * for the completion. The expectation is that this routine is called 10296 * typically from probe_one or from the online routine. 10297 **/ 10298 int 10299 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10300 { 10301 int rc; 10302 struct lpfc_mqe *mqe = &mboxq->u.mqe; 10303 struct lpfc_pc_sli4_params *sli4_params; 10304 uint32_t mbox_tmo; 10305 int length; 10306 struct lpfc_sli4_parameters *mbx_sli4_parameters; 10307 10308 /* 10309 * By default, the driver assumes the SLI4 port requires RPI 10310 * header postings. The SLI4_PARAM response will correct this 10311 * assumption. 10312 */ 10313 phba->sli4_hba.rpi_hdrs_in_use = 1; 10314 10315 /* Read the port's SLI4 Config Parameters */ 10316 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 10317 sizeof(struct lpfc_sli4_cfg_mhdr)); 10318 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 10319 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 10320 length, LPFC_SLI4_MBX_EMBED); 10321 if (!phba->sli4_hba.intr_enable) 10322 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10323 else { 10324 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10325 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10326 } 10327 if (unlikely(rc)) 10328 return rc; 10329 sli4_params = &phba->sli4_hba.pc_sli4_params; 10330 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 10331 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 10332 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 10333 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 10334 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 10335 mbx_sli4_parameters); 10336 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 10337 mbx_sli4_parameters); 10338 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 10339 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 10340 else 10341 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 10342 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 10343 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 10344 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters); 10345 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 10346 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 10347 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 10348 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 10349 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters); 10350 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 10351 mbx_sli4_parameters); 10352 sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters); 10353 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 10354 mbx_sli4_parameters); 10355 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 10356 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 10357 phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) && 10358 bf_get(cfg_xib, mbx_sli4_parameters)); 10359 10360 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) || 10361 !phba->nvme_support) { 10362 phba->nvme_support = 0; 10363 phba->nvmet_support = 0; 10364 phba->cfg_nvmet_mrq = 0; 10365 phba->cfg_nvme_io_channel = 0; 10366 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 10367 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME, 10368 "6101 Disabling NVME support: " 10369 "Not supported by firmware: %d %d\n", 10370 bf_get(cfg_nvme, mbx_sli4_parameters), 10371 bf_get(cfg_xib, mbx_sli4_parameters)); 10372 10373 /* If firmware doesn't support NVME, just use SCSI support */ 10374 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 10375 return -ENODEV; 10376 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 10377 } 10378 10379 if (bf_get(cfg_xib, mbx_sli4_parameters) && phba->cfg_suppress_rsp) 10380 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP; 10381 10382 if (bf_get(cfg_eqdr, mbx_sli4_parameters)) 10383 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR; 10384 10385 /* Make sure that sge_supp_len can be handled by the driver */ 10386 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10387 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10388 10389 /* 10390 * Issue IOs with CDB embedded in WQE to minimized the number 10391 * of DMAs the firmware has to do. Setting this to 1 also forces 10392 * the driver to use 128 bytes WQEs for FCP IOs. 10393 */ 10394 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters)) 10395 phba->fcp_embed_io = 1; 10396 else 10397 phba->fcp_embed_io = 0; 10398 10399 /* 10400 * Check if the SLI port supports MDS Diagnostics 10401 */ 10402 if (bf_get(cfg_mds_diags, mbx_sli4_parameters)) 10403 phba->mds_diags_support = 1; 10404 else 10405 phba->mds_diags_support = 0; 10406 return 0; 10407 } 10408 10409 /** 10410 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 10411 * @pdev: pointer to PCI device 10412 * @pid: pointer to PCI device identifier 10413 * 10414 * This routine is to be called to attach a device with SLI-3 interface spec 10415 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10416 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 10417 * information of the device and driver to see if the driver state that it can 10418 * support this kind of device. If the match is successful, the driver core 10419 * invokes this routine. If this routine determines it can claim the HBA, it 10420 * does all the initialization that it needs to do to handle the HBA properly. 10421 * 10422 * Return code 10423 * 0 - driver can claim the device 10424 * negative value - driver can not claim the device 10425 **/ 10426 static int 10427 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 10428 { 10429 struct lpfc_hba *phba; 10430 struct lpfc_vport *vport = NULL; 10431 struct Scsi_Host *shost = NULL; 10432 int error; 10433 uint32_t cfg_mode, intr_mode; 10434 10435 /* Allocate memory for HBA structure */ 10436 phba = lpfc_hba_alloc(pdev); 10437 if (!phba) 10438 return -ENOMEM; 10439 10440 /* Perform generic PCI device enabling operation */ 10441 error = lpfc_enable_pci_dev(phba); 10442 if (error) 10443 goto out_free_phba; 10444 10445 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 10446 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 10447 if (error) 10448 goto out_disable_pci_dev; 10449 10450 /* Set up SLI-3 specific device PCI memory space */ 10451 error = lpfc_sli_pci_mem_setup(phba); 10452 if (error) { 10453 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10454 "1402 Failed to set up pci memory space.\n"); 10455 goto out_disable_pci_dev; 10456 } 10457 10458 /* Set up SLI-3 specific device driver resources */ 10459 error = lpfc_sli_driver_resource_setup(phba); 10460 if (error) { 10461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10462 "1404 Failed to set up driver resource.\n"); 10463 goto out_unset_pci_mem_s3; 10464 } 10465 10466 /* Initialize and populate the iocb list per host */ 10467 10468 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 10469 if (error) { 10470 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10471 "1405 Failed to initialize iocb list.\n"); 10472 goto out_unset_driver_resource_s3; 10473 } 10474 10475 /* Set up common device driver resources */ 10476 error = lpfc_setup_driver_resource_phase2(phba); 10477 if (error) { 10478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10479 "1406 Failed to set up driver resource.\n"); 10480 goto out_free_iocb_list; 10481 } 10482 10483 /* Get the default values for Model Name and Description */ 10484 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 10485 10486 /* Create SCSI host to the physical port */ 10487 error = lpfc_create_shost(phba); 10488 if (error) { 10489 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10490 "1407 Failed to create scsi host.\n"); 10491 goto out_unset_driver_resource; 10492 } 10493 10494 /* Configure sysfs attributes */ 10495 vport = phba->pport; 10496 error = lpfc_alloc_sysfs_attr(vport); 10497 if (error) { 10498 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10499 "1476 Failed to allocate sysfs attr\n"); 10500 goto out_destroy_shost; 10501 } 10502 10503 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 10504 /* Now, trying to enable interrupt and bring up the device */ 10505 cfg_mode = phba->cfg_use_msi; 10506 while (true) { 10507 /* Put device to a known state before enabling interrupt */ 10508 lpfc_stop_port(phba); 10509 /* Configure and enable interrupt */ 10510 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 10511 if (intr_mode == LPFC_INTR_ERROR) { 10512 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10513 "0431 Failed to enable interrupt.\n"); 10514 error = -ENODEV; 10515 goto out_free_sysfs_attr; 10516 } 10517 /* SLI-3 HBA setup */ 10518 if (lpfc_sli_hba_setup(phba)) { 10519 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10520 "1477 Failed to set up hba\n"); 10521 error = -ENODEV; 10522 goto out_remove_device; 10523 } 10524 10525 /* Wait 50ms for the interrupts of previous mailbox commands */ 10526 msleep(50); 10527 /* Check active interrupts on message signaled interrupts */ 10528 if (intr_mode == 0 || 10529 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 10530 /* Log the current active interrupt mode */ 10531 phba->intr_mode = intr_mode; 10532 lpfc_log_intr_mode(phba, intr_mode); 10533 break; 10534 } else { 10535 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10536 "0447 Configure interrupt mode (%d) " 10537 "failed active interrupt test.\n", 10538 intr_mode); 10539 /* Disable the current interrupt mode */ 10540 lpfc_sli_disable_intr(phba); 10541 /* Try next level of interrupt mode */ 10542 cfg_mode = --intr_mode; 10543 } 10544 } 10545 10546 /* Perform post initialization setup */ 10547 lpfc_post_init_setup(phba); 10548 10549 /* Check if there are static vports to be created. */ 10550 lpfc_create_static_vport(phba); 10551 10552 return 0; 10553 10554 out_remove_device: 10555 lpfc_unset_hba(phba); 10556 out_free_sysfs_attr: 10557 lpfc_free_sysfs_attr(vport); 10558 out_destroy_shost: 10559 lpfc_destroy_shost(phba); 10560 out_unset_driver_resource: 10561 lpfc_unset_driver_resource_phase2(phba); 10562 out_free_iocb_list: 10563 lpfc_free_iocb_list(phba); 10564 out_unset_driver_resource_s3: 10565 lpfc_sli_driver_resource_unset(phba); 10566 out_unset_pci_mem_s3: 10567 lpfc_sli_pci_mem_unset(phba); 10568 out_disable_pci_dev: 10569 lpfc_disable_pci_dev(phba); 10570 if (shost) 10571 scsi_host_put(shost); 10572 out_free_phba: 10573 lpfc_hba_free(phba); 10574 return error; 10575 } 10576 10577 /** 10578 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 10579 * @pdev: pointer to PCI device 10580 * 10581 * This routine is to be called to disattach a device with SLI-3 interface 10582 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10583 * removed from PCI bus, it performs all the necessary cleanup for the HBA 10584 * device to be removed from the PCI subsystem properly. 10585 **/ 10586 static void 10587 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 10588 { 10589 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10590 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 10591 struct lpfc_vport **vports; 10592 struct lpfc_hba *phba = vport->phba; 10593 int i; 10594 10595 spin_lock_irq(&phba->hbalock); 10596 vport->load_flag |= FC_UNLOADING; 10597 spin_unlock_irq(&phba->hbalock); 10598 10599 lpfc_free_sysfs_attr(vport); 10600 10601 /* Release all the vports against this physical port */ 10602 vports = lpfc_create_vport_work_array(phba); 10603 if (vports != NULL) 10604 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 10605 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 10606 continue; 10607 fc_vport_terminate(vports[i]->fc_vport); 10608 } 10609 lpfc_destroy_vport_work_array(phba, vports); 10610 10611 /* Remove FC host and then SCSI host with the physical port */ 10612 fc_remove_host(shost); 10613 scsi_remove_host(shost); 10614 10615 lpfc_cleanup(vport); 10616 10617 /* 10618 * Bring down the SLI Layer. This step disable all interrupts, 10619 * clears the rings, discards all mailbox commands, and resets 10620 * the HBA. 10621 */ 10622 10623 /* HBA interrupt will be disabled after this call */ 10624 lpfc_sli_hba_down(phba); 10625 /* Stop kthread signal shall trigger work_done one more time */ 10626 kthread_stop(phba->worker_thread); 10627 /* Final cleanup of txcmplq and reset the HBA */ 10628 lpfc_sli_brdrestart(phba); 10629 10630 kfree(phba->vpi_bmask); 10631 kfree(phba->vpi_ids); 10632 10633 lpfc_stop_hba_timers(phba); 10634 spin_lock_irq(&phba->hbalock); 10635 list_del_init(&vport->listentry); 10636 spin_unlock_irq(&phba->hbalock); 10637 10638 lpfc_debugfs_terminate(vport); 10639 10640 /* Disable SR-IOV if enabled */ 10641 if (phba->cfg_sriov_nr_virtfn) 10642 pci_disable_sriov(pdev); 10643 10644 /* Disable interrupt */ 10645 lpfc_sli_disable_intr(phba); 10646 10647 scsi_host_put(shost); 10648 10649 /* 10650 * Call scsi_free before mem_free since scsi bufs are released to their 10651 * corresponding pools here. 10652 */ 10653 lpfc_scsi_free(phba); 10654 lpfc_mem_free_all(phba); 10655 10656 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 10657 phba->hbqslimp.virt, phba->hbqslimp.phys); 10658 10659 /* Free resources associated with SLI2 interface */ 10660 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 10661 phba->slim2p.virt, phba->slim2p.phys); 10662 10663 /* unmap adapter SLIM and Control Registers */ 10664 iounmap(phba->ctrl_regs_memmap_p); 10665 iounmap(phba->slim_memmap_p); 10666 10667 lpfc_hba_free(phba); 10668 10669 pci_release_mem_regions(pdev); 10670 pci_disable_device(pdev); 10671 } 10672 10673 /** 10674 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 10675 * @pdev: pointer to PCI device 10676 * @msg: power management message 10677 * 10678 * This routine is to be called from the kernel's PCI subsystem to support 10679 * system Power Management (PM) to device with SLI-3 interface spec. When 10680 * PM invokes this method, it quiesces the device by stopping the driver's 10681 * worker thread for the device, turning off device's interrupt and DMA, 10682 * and bring the device offline. Note that as the driver implements the 10683 * minimum PM requirements to a power-aware driver's PM support for the 10684 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 10685 * to the suspend() method call will be treated as SUSPEND and the driver will 10686 * fully reinitialize its device during resume() method call, the driver will 10687 * set device to PCI_D3hot state in PCI config space instead of setting it 10688 * according to the @msg provided by the PM. 10689 * 10690 * Return code 10691 * 0 - driver suspended the device 10692 * Error otherwise 10693 **/ 10694 static int 10695 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 10696 { 10697 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10698 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10699 10700 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10701 "0473 PCI device Power Management suspend.\n"); 10702 10703 /* Bring down the device */ 10704 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10705 lpfc_offline(phba); 10706 kthread_stop(phba->worker_thread); 10707 10708 /* Disable interrupt from device */ 10709 lpfc_sli_disable_intr(phba); 10710 10711 /* Save device state to PCI config space */ 10712 pci_save_state(pdev); 10713 pci_set_power_state(pdev, PCI_D3hot); 10714 10715 return 0; 10716 } 10717 10718 /** 10719 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 10720 * @pdev: pointer to PCI device 10721 * 10722 * This routine is to be called from the kernel's PCI subsystem to support 10723 * system Power Management (PM) to device with SLI-3 interface spec. When PM 10724 * invokes this method, it restores the device's PCI config space state and 10725 * fully reinitializes the device and brings it online. Note that as the 10726 * driver implements the minimum PM requirements to a power-aware driver's 10727 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 10728 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 10729 * driver will fully reinitialize its device during resume() method call, 10730 * the device will be set to PCI_D0 directly in PCI config space before 10731 * restoring the state. 10732 * 10733 * Return code 10734 * 0 - driver suspended the device 10735 * Error otherwise 10736 **/ 10737 static int 10738 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 10739 { 10740 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10741 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10742 uint32_t intr_mode; 10743 int error; 10744 10745 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10746 "0452 PCI device Power Management resume.\n"); 10747 10748 /* Restore device state from PCI config space */ 10749 pci_set_power_state(pdev, PCI_D0); 10750 pci_restore_state(pdev); 10751 10752 /* 10753 * As the new kernel behavior of pci_restore_state() API call clears 10754 * device saved_state flag, need to save the restored state again. 10755 */ 10756 pci_save_state(pdev); 10757 10758 if (pdev->is_busmaster) 10759 pci_set_master(pdev); 10760 10761 /* Startup the kernel thread for this host adapter. */ 10762 phba->worker_thread = kthread_run(lpfc_do_work, phba, 10763 "lpfc_worker_%d", phba->brd_no); 10764 if (IS_ERR(phba->worker_thread)) { 10765 error = PTR_ERR(phba->worker_thread); 10766 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10767 "0434 PM resume failed to start worker " 10768 "thread: error=x%x.\n", error); 10769 return error; 10770 } 10771 10772 /* Configure and enable interrupt */ 10773 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10774 if (intr_mode == LPFC_INTR_ERROR) { 10775 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10776 "0430 PM resume Failed to enable interrupt\n"); 10777 return -EIO; 10778 } else 10779 phba->intr_mode = intr_mode; 10780 10781 /* Restart HBA and bring it online */ 10782 lpfc_sli_brdrestart(phba); 10783 lpfc_online(phba); 10784 10785 /* Log the current active interrupt mode */ 10786 lpfc_log_intr_mode(phba, phba->intr_mode); 10787 10788 return 0; 10789 } 10790 10791 /** 10792 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 10793 * @phba: pointer to lpfc hba data structure. 10794 * 10795 * This routine is called to prepare the SLI3 device for PCI slot recover. It 10796 * aborts all the outstanding SCSI I/Os to the pci device. 10797 **/ 10798 static void 10799 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 10800 { 10801 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10802 "2723 PCI channel I/O abort preparing for recovery\n"); 10803 10804 /* 10805 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 10806 * and let the SCSI mid-layer to retry them to recover. 10807 */ 10808 lpfc_sli_abort_fcp_rings(phba); 10809 } 10810 10811 /** 10812 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 10813 * @phba: pointer to lpfc hba data structure. 10814 * 10815 * This routine is called to prepare the SLI3 device for PCI slot reset. It 10816 * disables the device interrupt and pci device, and aborts the internal FCP 10817 * pending I/Os. 10818 **/ 10819 static void 10820 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 10821 { 10822 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10823 "2710 PCI channel disable preparing for reset\n"); 10824 10825 /* Block any management I/Os to the device */ 10826 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 10827 10828 /* Block all SCSI devices' I/Os on the host */ 10829 lpfc_scsi_dev_block(phba); 10830 10831 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 10832 lpfc_sli_flush_fcp_rings(phba); 10833 10834 /* stop all timers */ 10835 lpfc_stop_hba_timers(phba); 10836 10837 /* Disable interrupt and pci device */ 10838 lpfc_sli_disable_intr(phba); 10839 pci_disable_device(phba->pcidev); 10840 } 10841 10842 /** 10843 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 10844 * @phba: pointer to lpfc hba data structure. 10845 * 10846 * This routine is called to prepare the SLI3 device for PCI slot permanently 10847 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 10848 * pending I/Os. 10849 **/ 10850 static void 10851 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 10852 { 10853 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10854 "2711 PCI channel permanent disable for failure\n"); 10855 /* Block all SCSI devices' I/Os on the host */ 10856 lpfc_scsi_dev_block(phba); 10857 10858 /* stop all timers */ 10859 lpfc_stop_hba_timers(phba); 10860 10861 /* Clean up all driver's outstanding SCSI I/Os */ 10862 lpfc_sli_flush_fcp_rings(phba); 10863 } 10864 10865 /** 10866 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 10867 * @pdev: pointer to PCI device. 10868 * @state: the current PCI connection state. 10869 * 10870 * This routine is called from the PCI subsystem for I/O error handling to 10871 * device with SLI-3 interface spec. This function is called by the PCI 10872 * subsystem after a PCI bus error affecting this device has been detected. 10873 * When this function is invoked, it will need to stop all the I/Os and 10874 * interrupt(s) to the device. Once that is done, it will return 10875 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 10876 * as desired. 10877 * 10878 * Return codes 10879 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 10880 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10881 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10882 **/ 10883 static pci_ers_result_t 10884 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 10885 { 10886 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10887 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10888 10889 switch (state) { 10890 case pci_channel_io_normal: 10891 /* Non-fatal error, prepare for recovery */ 10892 lpfc_sli_prep_dev_for_recover(phba); 10893 return PCI_ERS_RESULT_CAN_RECOVER; 10894 case pci_channel_io_frozen: 10895 /* Fatal error, prepare for slot reset */ 10896 lpfc_sli_prep_dev_for_reset(phba); 10897 return PCI_ERS_RESULT_NEED_RESET; 10898 case pci_channel_io_perm_failure: 10899 /* Permanent failure, prepare for device down */ 10900 lpfc_sli_prep_dev_for_perm_failure(phba); 10901 return PCI_ERS_RESULT_DISCONNECT; 10902 default: 10903 /* Unknown state, prepare and request slot reset */ 10904 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10905 "0472 Unknown PCI error state: x%x\n", state); 10906 lpfc_sli_prep_dev_for_reset(phba); 10907 return PCI_ERS_RESULT_NEED_RESET; 10908 } 10909 } 10910 10911 /** 10912 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 10913 * @pdev: pointer to PCI device. 10914 * 10915 * This routine is called from the PCI subsystem for error handling to 10916 * device with SLI-3 interface spec. This is called after PCI bus has been 10917 * reset to restart the PCI card from scratch, as if from a cold-boot. 10918 * During the PCI subsystem error recovery, after driver returns 10919 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 10920 * recovery and then call this routine before calling the .resume method 10921 * to recover the device. This function will initialize the HBA device, 10922 * enable the interrupt, but it will just put the HBA to offline state 10923 * without passing any I/O traffic. 10924 * 10925 * Return codes 10926 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10927 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10928 */ 10929 static pci_ers_result_t 10930 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 10931 { 10932 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10933 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10934 struct lpfc_sli *psli = &phba->sli; 10935 uint32_t intr_mode; 10936 10937 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 10938 if (pci_enable_device_mem(pdev)) { 10939 printk(KERN_ERR "lpfc: Cannot re-enable " 10940 "PCI device after reset.\n"); 10941 return PCI_ERS_RESULT_DISCONNECT; 10942 } 10943 10944 pci_restore_state(pdev); 10945 10946 /* 10947 * As the new kernel behavior of pci_restore_state() API call clears 10948 * device saved_state flag, need to save the restored state again. 10949 */ 10950 pci_save_state(pdev); 10951 10952 if (pdev->is_busmaster) 10953 pci_set_master(pdev); 10954 10955 spin_lock_irq(&phba->hbalock); 10956 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10957 spin_unlock_irq(&phba->hbalock); 10958 10959 /* Configure and enable interrupt */ 10960 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10961 if (intr_mode == LPFC_INTR_ERROR) { 10962 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10963 "0427 Cannot re-enable interrupt after " 10964 "slot reset.\n"); 10965 return PCI_ERS_RESULT_DISCONNECT; 10966 } else 10967 phba->intr_mode = intr_mode; 10968 10969 /* Take device offline, it will perform cleanup */ 10970 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10971 lpfc_offline(phba); 10972 lpfc_sli_brdrestart(phba); 10973 10974 /* Log the current active interrupt mode */ 10975 lpfc_log_intr_mode(phba, phba->intr_mode); 10976 10977 return PCI_ERS_RESULT_RECOVERED; 10978 } 10979 10980 /** 10981 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 10982 * @pdev: pointer to PCI device 10983 * 10984 * This routine is called from the PCI subsystem for error handling to device 10985 * with SLI-3 interface spec. It is called when kernel error recovery tells 10986 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10987 * error recovery. After this call, traffic can start to flow from this device 10988 * again. 10989 */ 10990 static void 10991 lpfc_io_resume_s3(struct pci_dev *pdev) 10992 { 10993 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10994 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10995 10996 /* Bring device online, it will be no-op for non-fatal error resume */ 10997 lpfc_online(phba); 10998 10999 /* Clean up Advanced Error Reporting (AER) if needed */ 11000 if (phba->hba_flag & HBA_AER_ENABLED) 11001 pci_cleanup_aer_uncorrect_error_status(pdev); 11002 } 11003 11004 /** 11005 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 11006 * @phba: pointer to lpfc hba data structure. 11007 * 11008 * returns the number of ELS/CT IOCBs to reserve 11009 **/ 11010 int 11011 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 11012 { 11013 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 11014 11015 if (phba->sli_rev == LPFC_SLI_REV4) { 11016 if (max_xri <= 100) 11017 return 10; 11018 else if (max_xri <= 256) 11019 return 25; 11020 else if (max_xri <= 512) 11021 return 50; 11022 else if (max_xri <= 1024) 11023 return 100; 11024 else if (max_xri <= 1536) 11025 return 150; 11026 else if (max_xri <= 2048) 11027 return 200; 11028 else 11029 return 250; 11030 } else 11031 return 0; 11032 } 11033 11034 /** 11035 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve 11036 * @phba: pointer to lpfc hba data structure. 11037 * 11038 * returns the number of ELS/CT + NVMET IOCBs to reserve 11039 **/ 11040 int 11041 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba) 11042 { 11043 int max_xri = lpfc_sli4_get_els_iocb_cnt(phba); 11044 11045 if (phba->nvmet_support) 11046 max_xri += LPFC_NVMET_BUF_POST; 11047 return max_xri; 11048 } 11049 11050 11051 /** 11052 * lpfc_write_firmware - attempt to write a firmware image to the port 11053 * @fw: pointer to firmware image returned from request_firmware. 11054 * @phba: pointer to lpfc hba data structure. 11055 * 11056 **/ 11057 static void 11058 lpfc_write_firmware(const struct firmware *fw, void *context) 11059 { 11060 struct lpfc_hba *phba = (struct lpfc_hba *)context; 11061 char fwrev[FW_REV_STR_SIZE]; 11062 struct lpfc_grp_hdr *image; 11063 struct list_head dma_buffer_list; 11064 int i, rc = 0; 11065 struct lpfc_dmabuf *dmabuf, *next; 11066 uint32_t offset = 0, temp_offset = 0; 11067 uint32_t magic_number, ftype, fid, fsize; 11068 11069 /* It can be null in no-wait mode, sanity check */ 11070 if (!fw) { 11071 rc = -ENXIO; 11072 goto out; 11073 } 11074 image = (struct lpfc_grp_hdr *)fw->data; 11075 11076 magic_number = be32_to_cpu(image->magic_number); 11077 ftype = bf_get_be32(lpfc_grp_hdr_file_type, image); 11078 fid = bf_get_be32(lpfc_grp_hdr_id, image), 11079 fsize = be32_to_cpu(image->size); 11080 11081 INIT_LIST_HEAD(&dma_buffer_list); 11082 if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 && 11083 magic_number != LPFC_GROUP_OJECT_MAGIC_G6) || 11084 ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) { 11085 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11086 "3022 Invalid FW image found. " 11087 "Magic:%x Type:%x ID:%x Size %d %zd\n", 11088 magic_number, ftype, fid, fsize, fw->size); 11089 rc = -EINVAL; 11090 goto release_out; 11091 } 11092 lpfc_decode_firmware_rev(phba, fwrev, 1); 11093 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 11094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11095 "3023 Updating Firmware, Current Version:%s " 11096 "New Version:%s\n", 11097 fwrev, image->revision); 11098 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 11099 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 11100 GFP_KERNEL); 11101 if (!dmabuf) { 11102 rc = -ENOMEM; 11103 goto release_out; 11104 } 11105 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 11106 SLI4_PAGE_SIZE, 11107 &dmabuf->phys, 11108 GFP_KERNEL); 11109 if (!dmabuf->virt) { 11110 kfree(dmabuf); 11111 rc = -ENOMEM; 11112 goto release_out; 11113 } 11114 list_add_tail(&dmabuf->list, &dma_buffer_list); 11115 } 11116 while (offset < fw->size) { 11117 temp_offset = offset; 11118 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 11119 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 11120 memcpy(dmabuf->virt, 11121 fw->data + temp_offset, 11122 fw->size - temp_offset); 11123 temp_offset = fw->size; 11124 break; 11125 } 11126 memcpy(dmabuf->virt, fw->data + temp_offset, 11127 SLI4_PAGE_SIZE); 11128 temp_offset += SLI4_PAGE_SIZE; 11129 } 11130 rc = lpfc_wr_object(phba, &dma_buffer_list, 11131 (fw->size - offset), &offset); 11132 if (rc) 11133 goto release_out; 11134 } 11135 rc = offset; 11136 } 11137 11138 release_out: 11139 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 11140 list_del(&dmabuf->list); 11141 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 11142 dmabuf->virt, dmabuf->phys); 11143 kfree(dmabuf); 11144 } 11145 release_firmware(fw); 11146 out: 11147 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11148 "3024 Firmware update done: %d.\n", rc); 11149 return; 11150 } 11151 11152 /** 11153 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 11154 * @phba: pointer to lpfc hba data structure. 11155 * 11156 * This routine is called to perform Linux generic firmware upgrade on device 11157 * that supports such feature. 11158 **/ 11159 int 11160 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 11161 { 11162 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 11163 int ret; 11164 const struct firmware *fw; 11165 11166 /* Only supported on SLI4 interface type 2 for now */ 11167 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 11168 LPFC_SLI_INTF_IF_TYPE_2) 11169 return -EPERM; 11170 11171 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 11172 11173 if (fw_upgrade == INT_FW_UPGRADE) { 11174 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 11175 file_name, &phba->pcidev->dev, 11176 GFP_KERNEL, (void *)phba, 11177 lpfc_write_firmware); 11178 } else if (fw_upgrade == RUN_FW_UPGRADE) { 11179 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 11180 if (!ret) 11181 lpfc_write_firmware(fw, (void *)phba); 11182 } else { 11183 ret = -EINVAL; 11184 } 11185 11186 return ret; 11187 } 11188 11189 /** 11190 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 11191 * @pdev: pointer to PCI device 11192 * @pid: pointer to PCI device identifier 11193 * 11194 * This routine is called from the kernel's PCI subsystem to device with 11195 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11196 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 11197 * information of the device and driver to see if the driver state that it 11198 * can support this kind of device. If the match is successful, the driver 11199 * core invokes this routine. If this routine determines it can claim the HBA, 11200 * it does all the initialization that it needs to do to handle the HBA 11201 * properly. 11202 * 11203 * Return code 11204 * 0 - driver can claim the device 11205 * negative value - driver can not claim the device 11206 **/ 11207 static int 11208 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 11209 { 11210 struct lpfc_hba *phba; 11211 struct lpfc_vport *vport = NULL; 11212 struct Scsi_Host *shost = NULL; 11213 int error; 11214 uint32_t cfg_mode, intr_mode; 11215 11216 /* Allocate memory for HBA structure */ 11217 phba = lpfc_hba_alloc(pdev); 11218 if (!phba) 11219 return -ENOMEM; 11220 11221 /* Perform generic PCI device enabling operation */ 11222 error = lpfc_enable_pci_dev(phba); 11223 if (error) 11224 goto out_free_phba; 11225 11226 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 11227 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 11228 if (error) 11229 goto out_disable_pci_dev; 11230 11231 /* Set up SLI-4 specific device PCI memory space */ 11232 error = lpfc_sli4_pci_mem_setup(phba); 11233 if (error) { 11234 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11235 "1410 Failed to set up pci memory space.\n"); 11236 goto out_disable_pci_dev; 11237 } 11238 11239 /* Set up SLI-4 Specific device driver resources */ 11240 error = lpfc_sli4_driver_resource_setup(phba); 11241 if (error) { 11242 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11243 "1412 Failed to set up driver resource.\n"); 11244 goto out_unset_pci_mem_s4; 11245 } 11246 11247 INIT_LIST_HEAD(&phba->active_rrq_list); 11248 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 11249 11250 /* Set up common device driver resources */ 11251 error = lpfc_setup_driver_resource_phase2(phba); 11252 if (error) { 11253 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11254 "1414 Failed to set up driver resource.\n"); 11255 goto out_unset_driver_resource_s4; 11256 } 11257 11258 /* Get the default values for Model Name and Description */ 11259 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 11260 11261 /* Create SCSI host to the physical port */ 11262 error = lpfc_create_shost(phba); 11263 if (error) { 11264 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11265 "1415 Failed to create scsi host.\n"); 11266 goto out_unset_driver_resource; 11267 } 11268 11269 /* Configure sysfs attributes */ 11270 vport = phba->pport; 11271 error = lpfc_alloc_sysfs_attr(vport); 11272 if (error) { 11273 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11274 "1416 Failed to allocate sysfs attr\n"); 11275 goto out_destroy_shost; 11276 } 11277 11278 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 11279 /* Now, trying to enable interrupt and bring up the device */ 11280 cfg_mode = phba->cfg_use_msi; 11281 11282 /* Put device to a known state before enabling interrupt */ 11283 lpfc_stop_port(phba); 11284 11285 /* Configure and enable interrupt */ 11286 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 11287 if (intr_mode == LPFC_INTR_ERROR) { 11288 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11289 "0426 Failed to enable interrupt.\n"); 11290 error = -ENODEV; 11291 goto out_free_sysfs_attr; 11292 } 11293 /* Default to single EQ for non-MSI-X */ 11294 if (phba->intr_type != MSIX) { 11295 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 11296 phba->cfg_fcp_io_channel = 1; 11297 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 11298 phba->cfg_nvme_io_channel = 1; 11299 if (phba->nvmet_support) 11300 phba->cfg_nvmet_mrq = 1; 11301 } 11302 phba->io_channel_irqs = 1; 11303 } 11304 11305 /* Set up SLI-4 HBA */ 11306 if (lpfc_sli4_hba_setup(phba)) { 11307 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11308 "1421 Failed to set up hba\n"); 11309 error = -ENODEV; 11310 goto out_disable_intr; 11311 } 11312 11313 /* Log the current active interrupt mode */ 11314 phba->intr_mode = intr_mode; 11315 lpfc_log_intr_mode(phba, intr_mode); 11316 11317 /* Perform post initialization setup */ 11318 lpfc_post_init_setup(phba); 11319 11320 /* NVME support in FW earlier in the driver load corrects the 11321 * FC4 type making a check for nvme_support unnecessary. 11322 */ 11323 if ((phba->nvmet_support == 0) && 11324 (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 11325 /* Create NVME binding with nvme_fc_transport. This 11326 * ensures the vport is initialized. If the localport 11327 * create fails, it should not unload the driver to 11328 * support field issues. 11329 */ 11330 error = lpfc_nvme_create_localport(vport); 11331 if (error) { 11332 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11333 "6004 NVME registration failed, " 11334 "error x%x\n", 11335 error); 11336 } 11337 } 11338 11339 /* check for firmware upgrade or downgrade */ 11340 if (phba->cfg_request_firmware_upgrade) 11341 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 11342 11343 /* Check if there are static vports to be created. */ 11344 lpfc_create_static_vport(phba); 11345 return 0; 11346 11347 out_disable_intr: 11348 lpfc_sli4_disable_intr(phba); 11349 out_free_sysfs_attr: 11350 lpfc_free_sysfs_attr(vport); 11351 out_destroy_shost: 11352 lpfc_destroy_shost(phba); 11353 out_unset_driver_resource: 11354 lpfc_unset_driver_resource_phase2(phba); 11355 out_unset_driver_resource_s4: 11356 lpfc_sli4_driver_resource_unset(phba); 11357 out_unset_pci_mem_s4: 11358 lpfc_sli4_pci_mem_unset(phba); 11359 out_disable_pci_dev: 11360 lpfc_disable_pci_dev(phba); 11361 if (shost) 11362 scsi_host_put(shost); 11363 out_free_phba: 11364 lpfc_hba_free(phba); 11365 return error; 11366 } 11367 11368 /** 11369 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 11370 * @pdev: pointer to PCI device 11371 * 11372 * This routine is called from the kernel's PCI subsystem to device with 11373 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11374 * removed from PCI bus, it performs all the necessary cleanup for the HBA 11375 * device to be removed from the PCI subsystem properly. 11376 **/ 11377 static void 11378 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 11379 { 11380 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11381 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 11382 struct lpfc_vport **vports; 11383 struct lpfc_hba *phba = vport->phba; 11384 int i; 11385 11386 /* Mark the device unloading flag */ 11387 spin_lock_irq(&phba->hbalock); 11388 vport->load_flag |= FC_UNLOADING; 11389 spin_unlock_irq(&phba->hbalock); 11390 11391 /* Free the HBA sysfs attributes */ 11392 lpfc_free_sysfs_attr(vport); 11393 11394 /* Release all the vports against this physical port */ 11395 vports = lpfc_create_vport_work_array(phba); 11396 if (vports != NULL) 11397 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 11398 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 11399 continue; 11400 fc_vport_terminate(vports[i]->fc_vport); 11401 } 11402 lpfc_destroy_vport_work_array(phba, vports); 11403 11404 /* Remove FC host and then SCSI host with the physical port */ 11405 fc_remove_host(shost); 11406 scsi_remove_host(shost); 11407 11408 /* Perform ndlp cleanup on the physical port. The nvme and nvmet 11409 * localports are destroyed after to cleanup all transport memory. 11410 */ 11411 lpfc_cleanup(vport); 11412 lpfc_nvmet_destroy_targetport(phba); 11413 lpfc_nvme_destroy_localport(vport); 11414 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 spin_lock_irq(&phba->hbalock); 11424 list_del_init(&vport->listentry); 11425 spin_unlock_irq(&phba->hbalock); 11426 11427 /* Perform scsi free before driver resource_unset since scsi 11428 * buffers are released to their corresponding pools here. 11429 */ 11430 lpfc_scsi_free(phba); 11431 lpfc_nvme_free(phba); 11432 lpfc_free_iocb_list(phba); 11433 11434 lpfc_sli4_driver_resource_unset(phba); 11435 11436 /* Unmap adapter Control and Doorbell registers */ 11437 lpfc_sli4_pci_mem_unset(phba); 11438 11439 /* Release PCI resources and disable device's PCI function */ 11440 scsi_host_put(shost); 11441 lpfc_disable_pci_dev(phba); 11442 11443 /* Finally, free the driver's device data structure */ 11444 lpfc_hba_free(phba); 11445 11446 return; 11447 } 11448 11449 /** 11450 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 11451 * @pdev: pointer to PCI device 11452 * @msg: power management message 11453 * 11454 * This routine is called from the kernel's PCI subsystem to support system 11455 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 11456 * this method, it quiesces the device by stopping the driver's worker 11457 * thread for the device, turning off device's interrupt and DMA, and bring 11458 * the device offline. Note that as the driver implements the minimum PM 11459 * requirements to a power-aware driver's PM support for suspend/resume -- all 11460 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 11461 * method call will be treated as SUSPEND and the driver will fully 11462 * reinitialize its device during resume() method call, the driver will set 11463 * device to PCI_D3hot state in PCI config space instead of setting it 11464 * according to the @msg provided by the PM. 11465 * 11466 * Return code 11467 * 0 - driver suspended the device 11468 * Error otherwise 11469 **/ 11470 static int 11471 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 11472 { 11473 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11474 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11475 11476 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11477 "2843 PCI device Power Management suspend.\n"); 11478 11479 /* Bring down the device */ 11480 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11481 lpfc_offline(phba); 11482 kthread_stop(phba->worker_thread); 11483 11484 /* Disable interrupt from device */ 11485 lpfc_sli4_disable_intr(phba); 11486 lpfc_sli4_queue_destroy(phba); 11487 11488 /* Save device state to PCI config space */ 11489 pci_save_state(pdev); 11490 pci_set_power_state(pdev, PCI_D3hot); 11491 11492 return 0; 11493 } 11494 11495 /** 11496 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 11497 * @pdev: pointer to PCI device 11498 * 11499 * This routine is called from the kernel's PCI subsystem to support system 11500 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 11501 * this method, it restores the device's PCI config space state and fully 11502 * reinitializes the device and brings it online. Note that as the driver 11503 * implements the minimum PM requirements to a power-aware driver's PM for 11504 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 11505 * to the suspend() method call will be treated as SUSPEND and the driver 11506 * will fully reinitialize its device during resume() method call, the device 11507 * will be set to PCI_D0 directly in PCI config space before restoring the 11508 * state. 11509 * 11510 * Return code 11511 * 0 - driver suspended the device 11512 * Error otherwise 11513 **/ 11514 static int 11515 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 11516 { 11517 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11518 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11519 uint32_t intr_mode; 11520 int error; 11521 11522 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11523 "0292 PCI device Power Management resume.\n"); 11524 11525 /* Restore device state from PCI config space */ 11526 pci_set_power_state(pdev, PCI_D0); 11527 pci_restore_state(pdev); 11528 11529 /* 11530 * As the new kernel behavior of pci_restore_state() API call clears 11531 * device saved_state flag, need to save the restored state again. 11532 */ 11533 pci_save_state(pdev); 11534 11535 if (pdev->is_busmaster) 11536 pci_set_master(pdev); 11537 11538 /* Startup the kernel thread for this host adapter. */ 11539 phba->worker_thread = kthread_run(lpfc_do_work, phba, 11540 "lpfc_worker_%d", phba->brd_no); 11541 if (IS_ERR(phba->worker_thread)) { 11542 error = PTR_ERR(phba->worker_thread); 11543 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11544 "0293 PM resume failed to start worker " 11545 "thread: error=x%x.\n", error); 11546 return error; 11547 } 11548 11549 /* Configure and enable interrupt */ 11550 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 11551 if (intr_mode == LPFC_INTR_ERROR) { 11552 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11553 "0294 PM resume Failed to enable interrupt\n"); 11554 return -EIO; 11555 } else 11556 phba->intr_mode = intr_mode; 11557 11558 /* Restart HBA and bring it online */ 11559 lpfc_sli_brdrestart(phba); 11560 lpfc_online(phba); 11561 11562 /* Log the current active interrupt mode */ 11563 lpfc_log_intr_mode(phba, phba->intr_mode); 11564 11565 return 0; 11566 } 11567 11568 /** 11569 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 11570 * @phba: pointer to lpfc hba data structure. 11571 * 11572 * This routine is called to prepare the SLI4 device for PCI slot recover. It 11573 * aborts all the outstanding SCSI I/Os to the pci device. 11574 **/ 11575 static void 11576 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 11577 { 11578 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11579 "2828 PCI channel I/O abort preparing for recovery\n"); 11580 /* 11581 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 11582 * and let the SCSI mid-layer to retry them to recover. 11583 */ 11584 lpfc_sli_abort_fcp_rings(phba); 11585 } 11586 11587 /** 11588 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 11589 * @phba: pointer to lpfc hba data structure. 11590 * 11591 * This routine is called to prepare the SLI4 device for PCI slot reset. It 11592 * disables the device interrupt and pci device, and aborts the internal FCP 11593 * pending I/Os. 11594 **/ 11595 static void 11596 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 11597 { 11598 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11599 "2826 PCI channel disable preparing for reset\n"); 11600 11601 /* Block any management I/Os to the device */ 11602 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 11603 11604 /* Block all SCSI devices' I/Os on the host */ 11605 lpfc_scsi_dev_block(phba); 11606 11607 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 11608 lpfc_sli_flush_fcp_rings(phba); 11609 11610 /* stop all timers */ 11611 lpfc_stop_hba_timers(phba); 11612 11613 /* Disable interrupt and pci device */ 11614 lpfc_sli4_disable_intr(phba); 11615 lpfc_sli4_queue_destroy(phba); 11616 pci_disable_device(phba->pcidev); 11617 } 11618 11619 /** 11620 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 11621 * @phba: pointer to lpfc hba data structure. 11622 * 11623 * This routine is called to prepare the SLI4 device for PCI slot permanently 11624 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 11625 * pending I/Os. 11626 **/ 11627 static void 11628 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 11629 { 11630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11631 "2827 PCI channel permanent disable for failure\n"); 11632 11633 /* Block all SCSI devices' I/Os on the host */ 11634 lpfc_scsi_dev_block(phba); 11635 11636 /* stop all timers */ 11637 lpfc_stop_hba_timers(phba); 11638 11639 /* Clean up all driver's outstanding SCSI I/Os */ 11640 lpfc_sli_flush_fcp_rings(phba); 11641 } 11642 11643 /** 11644 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 11645 * @pdev: pointer to PCI device. 11646 * @state: the current PCI connection state. 11647 * 11648 * This routine is called from the PCI subsystem for error handling to device 11649 * with SLI-4 interface spec. This function is called by the PCI subsystem 11650 * after a PCI bus error affecting this device has been detected. When this 11651 * function is invoked, it will need to stop all the I/Os and interrupt(s) 11652 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 11653 * for the PCI subsystem to perform proper recovery as desired. 11654 * 11655 * Return codes 11656 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11657 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11658 **/ 11659 static pci_ers_result_t 11660 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 11661 { 11662 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11663 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11664 11665 switch (state) { 11666 case pci_channel_io_normal: 11667 /* Non-fatal error, prepare for recovery */ 11668 lpfc_sli4_prep_dev_for_recover(phba); 11669 return PCI_ERS_RESULT_CAN_RECOVER; 11670 case pci_channel_io_frozen: 11671 /* Fatal error, prepare for slot reset */ 11672 lpfc_sli4_prep_dev_for_reset(phba); 11673 return PCI_ERS_RESULT_NEED_RESET; 11674 case pci_channel_io_perm_failure: 11675 /* Permanent failure, prepare for device down */ 11676 lpfc_sli4_prep_dev_for_perm_failure(phba); 11677 return PCI_ERS_RESULT_DISCONNECT; 11678 default: 11679 /* Unknown state, prepare and request slot reset */ 11680 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11681 "2825 Unknown PCI error state: x%x\n", state); 11682 lpfc_sli4_prep_dev_for_reset(phba); 11683 return PCI_ERS_RESULT_NEED_RESET; 11684 } 11685 } 11686 11687 /** 11688 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 11689 * @pdev: pointer to PCI device. 11690 * 11691 * This routine is called from the PCI subsystem for error handling to device 11692 * with SLI-4 interface spec. It is called after PCI bus has been reset to 11693 * restart the PCI card from scratch, as if from a cold-boot. During the 11694 * PCI subsystem error recovery, after the driver returns 11695 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 11696 * recovery and then call this routine before calling the .resume method to 11697 * recover the device. This function will initialize the HBA device, enable 11698 * the interrupt, but it will just put the HBA to offline state without 11699 * passing any I/O traffic. 11700 * 11701 * Return codes 11702 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11703 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11704 */ 11705 static pci_ers_result_t 11706 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 11707 { 11708 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11709 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11710 struct lpfc_sli *psli = &phba->sli; 11711 uint32_t intr_mode; 11712 11713 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 11714 if (pci_enable_device_mem(pdev)) { 11715 printk(KERN_ERR "lpfc: Cannot re-enable " 11716 "PCI device after reset.\n"); 11717 return PCI_ERS_RESULT_DISCONNECT; 11718 } 11719 11720 pci_restore_state(pdev); 11721 11722 /* 11723 * As the new kernel behavior of pci_restore_state() API call clears 11724 * device saved_state flag, need to save the restored state again. 11725 */ 11726 pci_save_state(pdev); 11727 11728 if (pdev->is_busmaster) 11729 pci_set_master(pdev); 11730 11731 spin_lock_irq(&phba->hbalock); 11732 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 11733 spin_unlock_irq(&phba->hbalock); 11734 11735 /* Configure and enable interrupt */ 11736 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 11737 if (intr_mode == LPFC_INTR_ERROR) { 11738 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11739 "2824 Cannot re-enable interrupt after " 11740 "slot reset.\n"); 11741 return PCI_ERS_RESULT_DISCONNECT; 11742 } else 11743 phba->intr_mode = intr_mode; 11744 11745 /* Log the current active interrupt mode */ 11746 lpfc_log_intr_mode(phba, phba->intr_mode); 11747 11748 return PCI_ERS_RESULT_RECOVERED; 11749 } 11750 11751 /** 11752 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 11753 * @pdev: pointer to PCI device 11754 * 11755 * This routine is called from the PCI subsystem for error handling to device 11756 * with SLI-4 interface spec. It is called when kernel error recovery tells 11757 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 11758 * error recovery. After this call, traffic can start to flow from this device 11759 * again. 11760 **/ 11761 static void 11762 lpfc_io_resume_s4(struct pci_dev *pdev) 11763 { 11764 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11765 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11766 11767 /* 11768 * In case of slot reset, as function reset is performed through 11769 * mailbox command which needs DMA to be enabled, this operation 11770 * has to be moved to the io resume phase. Taking device offline 11771 * will perform the necessary cleanup. 11772 */ 11773 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 11774 /* Perform device reset */ 11775 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11776 lpfc_offline(phba); 11777 lpfc_sli_brdrestart(phba); 11778 /* Bring the device back online */ 11779 lpfc_online(phba); 11780 } 11781 11782 /* Clean up Advanced Error Reporting (AER) if needed */ 11783 if (phba->hba_flag & HBA_AER_ENABLED) 11784 pci_cleanup_aer_uncorrect_error_status(pdev); 11785 } 11786 11787 /** 11788 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 11789 * @pdev: pointer to PCI device 11790 * @pid: pointer to PCI device identifier 11791 * 11792 * This routine is to be registered to the kernel's PCI subsystem. When an 11793 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 11794 * at PCI device-specific information of the device and driver to see if the 11795 * driver state that it can support this kind of device. If the match is 11796 * successful, the driver core invokes this routine. This routine dispatches 11797 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 11798 * do all the initialization that it needs to do to handle the HBA device 11799 * properly. 11800 * 11801 * Return code 11802 * 0 - driver can claim the device 11803 * negative value - driver can not claim the device 11804 **/ 11805 static int 11806 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 11807 { 11808 int rc; 11809 struct lpfc_sli_intf intf; 11810 11811 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 11812 return -ENODEV; 11813 11814 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 11815 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 11816 rc = lpfc_pci_probe_one_s4(pdev, pid); 11817 else 11818 rc = lpfc_pci_probe_one_s3(pdev, pid); 11819 11820 return rc; 11821 } 11822 11823 /** 11824 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 11825 * @pdev: pointer to PCI device 11826 * 11827 * This routine is to be registered to the kernel's PCI subsystem. When an 11828 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 11829 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 11830 * remove routine, which will perform all the necessary cleanup for the 11831 * device to be removed from the PCI subsystem properly. 11832 **/ 11833 static void 11834 lpfc_pci_remove_one(struct pci_dev *pdev) 11835 { 11836 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11837 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11838 11839 switch (phba->pci_dev_grp) { 11840 case LPFC_PCI_DEV_LP: 11841 lpfc_pci_remove_one_s3(pdev); 11842 break; 11843 case LPFC_PCI_DEV_OC: 11844 lpfc_pci_remove_one_s4(pdev); 11845 break; 11846 default: 11847 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11848 "1424 Invalid PCI device group: 0x%x\n", 11849 phba->pci_dev_grp); 11850 break; 11851 } 11852 return; 11853 } 11854 11855 /** 11856 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 11857 * @pdev: pointer to PCI device 11858 * @msg: power management message 11859 * 11860 * This routine is to be registered to the kernel's PCI subsystem to support 11861 * system Power Management (PM). When PM invokes this method, it dispatches 11862 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 11863 * suspend the device. 11864 * 11865 * Return code 11866 * 0 - driver suspended the device 11867 * Error otherwise 11868 **/ 11869 static int 11870 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 11871 { 11872 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11873 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11874 int rc = -ENODEV; 11875 11876 switch (phba->pci_dev_grp) { 11877 case LPFC_PCI_DEV_LP: 11878 rc = lpfc_pci_suspend_one_s3(pdev, msg); 11879 break; 11880 case LPFC_PCI_DEV_OC: 11881 rc = lpfc_pci_suspend_one_s4(pdev, msg); 11882 break; 11883 default: 11884 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11885 "1425 Invalid PCI device group: 0x%x\n", 11886 phba->pci_dev_grp); 11887 break; 11888 } 11889 return rc; 11890 } 11891 11892 /** 11893 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 11894 * @pdev: pointer to PCI device 11895 * 11896 * This routine is to be registered to the kernel's PCI subsystem to support 11897 * system Power Management (PM). When PM invokes this method, it dispatches 11898 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 11899 * resume the device. 11900 * 11901 * Return code 11902 * 0 - driver suspended the device 11903 * Error otherwise 11904 **/ 11905 static int 11906 lpfc_pci_resume_one(struct pci_dev *pdev) 11907 { 11908 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11909 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11910 int rc = -ENODEV; 11911 11912 switch (phba->pci_dev_grp) { 11913 case LPFC_PCI_DEV_LP: 11914 rc = lpfc_pci_resume_one_s3(pdev); 11915 break; 11916 case LPFC_PCI_DEV_OC: 11917 rc = lpfc_pci_resume_one_s4(pdev); 11918 break; 11919 default: 11920 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11921 "1426 Invalid PCI device group: 0x%x\n", 11922 phba->pci_dev_grp); 11923 break; 11924 } 11925 return rc; 11926 } 11927 11928 /** 11929 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 11930 * @pdev: pointer to PCI device. 11931 * @state: the current PCI connection state. 11932 * 11933 * This routine is registered to the PCI subsystem for error handling. This 11934 * function is called by the PCI subsystem after a PCI bus error affecting 11935 * this device has been detected. When this routine is invoked, it dispatches 11936 * the action to the proper SLI-3 or SLI-4 device error detected handling 11937 * routine, which will perform the proper error detected operation. 11938 * 11939 * Return codes 11940 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11941 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11942 **/ 11943 static pci_ers_result_t 11944 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 11945 { 11946 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11947 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11948 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11949 11950 switch (phba->pci_dev_grp) { 11951 case LPFC_PCI_DEV_LP: 11952 rc = lpfc_io_error_detected_s3(pdev, state); 11953 break; 11954 case LPFC_PCI_DEV_OC: 11955 rc = lpfc_io_error_detected_s4(pdev, state); 11956 break; 11957 default: 11958 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11959 "1427 Invalid PCI device group: 0x%x\n", 11960 phba->pci_dev_grp); 11961 break; 11962 } 11963 return rc; 11964 } 11965 11966 /** 11967 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 11968 * @pdev: pointer to PCI device. 11969 * 11970 * This routine is registered to the PCI subsystem for error handling. This 11971 * function is called after PCI bus has been reset to restart the PCI card 11972 * from scratch, as if from a cold-boot. When this routine is invoked, it 11973 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 11974 * routine, which will perform the proper device reset. 11975 * 11976 * Return codes 11977 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11978 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11979 **/ 11980 static pci_ers_result_t 11981 lpfc_io_slot_reset(struct pci_dev *pdev) 11982 { 11983 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11984 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11985 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11986 11987 switch (phba->pci_dev_grp) { 11988 case LPFC_PCI_DEV_LP: 11989 rc = lpfc_io_slot_reset_s3(pdev); 11990 break; 11991 case LPFC_PCI_DEV_OC: 11992 rc = lpfc_io_slot_reset_s4(pdev); 11993 break; 11994 default: 11995 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11996 "1428 Invalid PCI device group: 0x%x\n", 11997 phba->pci_dev_grp); 11998 break; 11999 } 12000 return rc; 12001 } 12002 12003 /** 12004 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 12005 * @pdev: pointer to PCI device 12006 * 12007 * This routine is registered to the PCI subsystem for error handling. It 12008 * is called when kernel error recovery tells the lpfc driver that it is 12009 * OK to resume normal PCI operation after PCI bus error recovery. When 12010 * this routine is invoked, it dispatches the action to the proper SLI-3 12011 * or SLI-4 device io_resume routine, which will resume the device operation. 12012 **/ 12013 static void 12014 lpfc_io_resume(struct pci_dev *pdev) 12015 { 12016 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12017 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12018 12019 switch (phba->pci_dev_grp) { 12020 case LPFC_PCI_DEV_LP: 12021 lpfc_io_resume_s3(pdev); 12022 break; 12023 case LPFC_PCI_DEV_OC: 12024 lpfc_io_resume_s4(pdev); 12025 break; 12026 default: 12027 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12028 "1429 Invalid PCI device group: 0x%x\n", 12029 phba->pci_dev_grp); 12030 break; 12031 } 12032 return; 12033 } 12034 12035 /** 12036 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter 12037 * @phba: pointer to lpfc hba data structure. 12038 * 12039 * This routine checks to see if OAS is supported for this adapter. If 12040 * supported, the configure Flash Optimized Fabric flag is set. Otherwise, 12041 * the enable oas flag is cleared and the pool created for OAS device data 12042 * is destroyed. 12043 * 12044 **/ 12045 void 12046 lpfc_sli4_oas_verify(struct lpfc_hba *phba) 12047 { 12048 12049 if (!phba->cfg_EnableXLane) 12050 return; 12051 12052 if (phba->sli4_hba.pc_sli4_params.oas_supported) { 12053 phba->cfg_fof = 1; 12054 } else { 12055 phba->cfg_fof = 0; 12056 if (phba->device_data_mem_pool) 12057 mempool_destroy(phba->device_data_mem_pool); 12058 phba->device_data_mem_pool = NULL; 12059 } 12060 12061 return; 12062 } 12063 12064 /** 12065 * lpfc_fof_queue_setup - Set up all the fof queues 12066 * @phba: pointer to lpfc hba data structure. 12067 * 12068 * This routine is invoked to set up all the fof queues for the FC HBA 12069 * operation. 12070 * 12071 * Return codes 12072 * 0 - successful 12073 * -ENOMEM - No available memory 12074 **/ 12075 int 12076 lpfc_fof_queue_setup(struct lpfc_hba *phba) 12077 { 12078 struct lpfc_sli_ring *pring; 12079 int rc; 12080 12081 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX); 12082 if (rc) 12083 return -ENOMEM; 12084 12085 if (phba->cfg_fof) { 12086 12087 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq, 12088 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP); 12089 if (rc) 12090 goto out_oas_cq; 12091 12092 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq, 12093 phba->sli4_hba.oas_cq, LPFC_FCP); 12094 if (rc) 12095 goto out_oas_wq; 12096 12097 /* Bind this CQ/WQ to the NVME ring */ 12098 pring = phba->sli4_hba.oas_wq->pring; 12099 pring->sli.sli4.wqp = 12100 (void *)phba->sli4_hba.oas_wq; 12101 phba->sli4_hba.oas_cq->pring = pring; 12102 } 12103 12104 return 0; 12105 12106 out_oas_wq: 12107 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq); 12108 out_oas_cq: 12109 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq); 12110 return rc; 12111 12112 } 12113 12114 /** 12115 * lpfc_fof_queue_create - Create all the fof queues 12116 * @phba: pointer to lpfc hba data structure. 12117 * 12118 * This routine is invoked to allocate all the fof queues for the FC HBA 12119 * operation. For each SLI4 queue type, the parameters such as queue entry 12120 * count (queue depth) shall be taken from the module parameter. For now, 12121 * we just use some constant number as place holder. 12122 * 12123 * Return codes 12124 * 0 - successful 12125 * -ENOMEM - No availble memory 12126 * -EIO - The mailbox failed to complete successfully. 12127 **/ 12128 int 12129 lpfc_fof_queue_create(struct lpfc_hba *phba) 12130 { 12131 struct lpfc_queue *qdesc; 12132 uint32_t wqesize; 12133 12134 /* Create FOF EQ */ 12135 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 12136 phba->sli4_hba.eq_ecount); 12137 if (!qdesc) 12138 goto out_error; 12139 12140 phba->sli4_hba.fof_eq = qdesc; 12141 12142 if (phba->cfg_fof) { 12143 12144 /* Create OAS CQ */ 12145 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 12146 phba->sli4_hba.cq_ecount); 12147 if (!qdesc) 12148 goto out_error; 12149 12150 phba->sli4_hba.oas_cq = qdesc; 12151 12152 /* Create OAS WQ */ 12153 wqesize = (phba->fcp_embed_io) ? 12154 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 12155 qdesc = lpfc_sli4_queue_alloc(phba, wqesize, 12156 phba->sli4_hba.wq_ecount); 12157 12158 if (!qdesc) 12159 goto out_error; 12160 12161 phba->sli4_hba.oas_wq = qdesc; 12162 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 12163 12164 } 12165 return 0; 12166 12167 out_error: 12168 lpfc_fof_queue_destroy(phba); 12169 return -ENOMEM; 12170 } 12171 12172 /** 12173 * lpfc_fof_queue_destroy - Destroy all the fof queues 12174 * @phba: pointer to lpfc hba data structure. 12175 * 12176 * This routine is invoked to release all the SLI4 queues with the FC HBA 12177 * operation. 12178 * 12179 * Return codes 12180 * 0 - successful 12181 **/ 12182 int 12183 lpfc_fof_queue_destroy(struct lpfc_hba *phba) 12184 { 12185 /* Release FOF Event queue */ 12186 if (phba->sli4_hba.fof_eq != NULL) { 12187 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq); 12188 phba->sli4_hba.fof_eq = NULL; 12189 } 12190 12191 /* Release OAS Completion queue */ 12192 if (phba->sli4_hba.oas_cq != NULL) { 12193 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq); 12194 phba->sli4_hba.oas_cq = NULL; 12195 } 12196 12197 /* Release OAS Work queue */ 12198 if (phba->sli4_hba.oas_wq != NULL) { 12199 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq); 12200 phba->sli4_hba.oas_wq = NULL; 12201 } 12202 return 0; 12203 } 12204 12205 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 12206 12207 static const struct pci_error_handlers lpfc_err_handler = { 12208 .error_detected = lpfc_io_error_detected, 12209 .slot_reset = lpfc_io_slot_reset, 12210 .resume = lpfc_io_resume, 12211 }; 12212 12213 static struct pci_driver lpfc_driver = { 12214 .name = LPFC_DRIVER_NAME, 12215 .id_table = lpfc_id_table, 12216 .probe = lpfc_pci_probe_one, 12217 .remove = lpfc_pci_remove_one, 12218 .shutdown = lpfc_pci_remove_one, 12219 .suspend = lpfc_pci_suspend_one, 12220 .resume = lpfc_pci_resume_one, 12221 .err_handler = &lpfc_err_handler, 12222 }; 12223 12224 static const struct file_operations lpfc_mgmt_fop = { 12225 .owner = THIS_MODULE, 12226 }; 12227 12228 static struct miscdevice lpfc_mgmt_dev = { 12229 .minor = MISC_DYNAMIC_MINOR, 12230 .name = "lpfcmgmt", 12231 .fops = &lpfc_mgmt_fop, 12232 }; 12233 12234 /** 12235 * lpfc_init - lpfc module initialization routine 12236 * 12237 * This routine is to be invoked when the lpfc module is loaded into the 12238 * kernel. The special kernel macro module_init() is used to indicate the 12239 * role of this routine to the kernel as lpfc module entry point. 12240 * 12241 * Return codes 12242 * 0 - successful 12243 * -ENOMEM - FC attach transport failed 12244 * all others - failed 12245 */ 12246 static int __init 12247 lpfc_init(void) 12248 { 12249 int error = 0; 12250 12251 printk(LPFC_MODULE_DESC "\n"); 12252 printk(LPFC_COPYRIGHT "\n"); 12253 12254 error = misc_register(&lpfc_mgmt_dev); 12255 if (error) 12256 printk(KERN_ERR "Could not register lpfcmgmt device, " 12257 "misc_register returned with status %d", error); 12258 12259 lpfc_transport_functions.vport_create = lpfc_vport_create; 12260 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 12261 lpfc_transport_template = 12262 fc_attach_transport(&lpfc_transport_functions); 12263 if (lpfc_transport_template == NULL) 12264 return -ENOMEM; 12265 lpfc_vport_transport_template = 12266 fc_attach_transport(&lpfc_vport_transport_functions); 12267 if (lpfc_vport_transport_template == NULL) { 12268 fc_release_transport(lpfc_transport_template); 12269 return -ENOMEM; 12270 } 12271 12272 /* Initialize in case vector mapping is needed */ 12273 lpfc_used_cpu = NULL; 12274 lpfc_present_cpu = num_present_cpus(); 12275 12276 error = pci_register_driver(&lpfc_driver); 12277 if (error) { 12278 fc_release_transport(lpfc_transport_template); 12279 fc_release_transport(lpfc_vport_transport_template); 12280 } 12281 12282 return error; 12283 } 12284 12285 /** 12286 * lpfc_exit - lpfc module removal routine 12287 * 12288 * This routine is invoked when the lpfc module is removed from the kernel. 12289 * The special kernel macro module_exit() is used to indicate the role of 12290 * this routine to the kernel as lpfc module exit point. 12291 */ 12292 static void __exit 12293 lpfc_exit(void) 12294 { 12295 misc_deregister(&lpfc_mgmt_dev); 12296 pci_unregister_driver(&lpfc_driver); 12297 fc_release_transport(lpfc_transport_template); 12298 fc_release_transport(lpfc_vport_transport_template); 12299 if (_dump_buf_data) { 12300 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 12301 "_dump_buf_data at 0x%p\n", 12302 (1L << _dump_buf_data_order), _dump_buf_data); 12303 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 12304 } 12305 12306 if (_dump_buf_dif) { 12307 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 12308 "_dump_buf_dif at 0x%p\n", 12309 (1L << _dump_buf_dif_order), _dump_buf_dif); 12310 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 12311 } 12312 kfree(lpfc_used_cpu); 12313 idr_destroy(&lpfc_hba_index); 12314 } 12315 12316 module_init(lpfc_init); 12317 module_exit(lpfc_exit); 12318 MODULE_LICENSE("GPL"); 12319 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 12320 MODULE_AUTHOR("Broadcom"); 12321 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 12322